driver_nl80211.c revision 34af306c42b7ccf956508e7cd23f0ba90606e360
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; 200 201 void *ctx; 202 struct nl_handle *nl_preq, *nl_mgmt; 203 struct nl_cb *nl_cb; 204 205 struct nl80211_wiphy_data *wiphy_data; 206 struct dl_list wiphy_list; 207}; 208 209struct wpa_driver_nl80211_data { 210 struct nl80211_global *global; 211 struct dl_list list; 212 struct dl_list wiphy_list; 213 char phyname[32]; 214 void *ctx; 215 int ifindex; 216 int if_removed; 217 int if_disabled; 218 int ignore_if_down_event; 219 struct rfkill_data *rfkill; 220 struct wpa_driver_capa capa; 221 u8 *extended_capa, *extended_capa_mask; 222 unsigned int extended_capa_len; 223 int has_capability; 224 225 int operstate; 226 227 int scan_complete_events; 228 229 struct nl_cb *nl_cb; 230 231 u8 auth_bssid[ETH_ALEN]; 232 u8 auth_attempt_bssid[ETH_ALEN]; 233 u8 bssid[ETH_ALEN]; 234 u8 prev_bssid[ETH_ALEN]; 235 int associated; 236 u8 ssid[32]; 237 size_t ssid_len; 238 enum nl80211_iftype nlmode; 239 enum nl80211_iftype ap_scan_as_station; 240 unsigned int assoc_freq; 241 242 int monitor_sock; 243 int monitor_ifidx; 244 int monitor_refcount; 245 246 unsigned int disabled_11b_rates:1; 247 unsigned int pending_remain_on_chan:1; 248 unsigned int in_interface_list:1; 249 unsigned int device_ap_sme:1; 250 unsigned int poll_command_supported:1; 251 unsigned int data_tx_status:1; 252 unsigned int scan_for_auth:1; 253 unsigned int retry_auth:1; 254 unsigned int use_monitor:1; 255 unsigned int ignore_next_local_disconnect:1; 256 unsigned int allow_p2p_device:1; 257 258 u64 remain_on_chan_cookie; 259 u64 send_action_cookie; 260 261 unsigned int last_mgmt_freq; 262 263 struct wpa_driver_scan_filter *filter_ssids; 264 size_t num_filter_ssids; 265 266 struct i802_bss first_bss; 267 268 int eapol_tx_sock; 269 270#ifdef HOSTAPD 271 int eapol_sock; /* socket for EAPOL frames */ 272 273 int default_if_indices[16]; 274 int *if_indices; 275 int num_if_indices; 276 277 int last_freq; 278 int last_freq_ht; 279#endif /* HOSTAPD */ 280 281 /* From failed authentication command */ 282 int auth_freq; 283 u8 auth_bssid_[ETH_ALEN]; 284 u8 auth_ssid[32]; 285 size_t auth_ssid_len; 286 int auth_alg; 287 u8 *auth_ie; 288 size_t auth_ie_len; 289 u8 auth_wep_key[4][16]; 290 size_t auth_wep_key_len[4]; 291 int auth_wep_tx_keyidx; 292 int auth_local_state_change; 293 int auth_p2p; 294}; 295 296 297static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 298static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 299 void *timeout_ctx); 300static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 301 enum nl80211_iftype nlmode); 302static int 303wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 304static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 305 const u8 *addr, int cmd, u16 reason_code, 306 int local_state_change); 307static void nl80211_remove_monitor_interface( 308 struct wpa_driver_nl80211_data *drv); 309static int nl80211_send_frame_cmd(struct i802_bss *bss, 310 unsigned int freq, unsigned int wait, 311 const u8 *buf, size_t buf_len, u64 *cookie, 312 int no_cck, int no_ack, int offchanok); 313static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 314 int report); 315#ifdef ANDROID 316static int android_pno_start(struct i802_bss *bss, 317 struct wpa_driver_scan_params *params); 318static int android_pno_stop(struct i802_bss *bss); 319#endif /* ANDROID */ 320#ifdef ANDROID_P2P 321int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 322int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 323int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 324int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 325 const struct wpabuf *proberesp, 326 const struct wpabuf *assocresp); 327 328#endif 329#ifdef HOSTAPD 330static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 331static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 332static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 333static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 334 enum wpa_driver_if_type type, 335 const char *ifname); 336#else /* HOSTAPD */ 337static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 338{ 339} 340 341static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 342{ 343} 344 345static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 346{ 347 return 0; 348} 349#endif /* HOSTAPD */ 350#ifdef ANDROID 351extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 352 size_t buf_len); 353#endif 354 355static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 356 struct hostapd_freq_params *freq); 357static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 358 int ifindex, int disabled); 359 360static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 361static int wpa_driver_nl80211_authenticate_retry( 362 struct wpa_driver_nl80211_data *drv); 363 364 365static const char * nl80211_command_to_string(enum nl80211_commands cmd) 366{ 367#define C2S(x) case x: return #x; 368 switch (cmd) { 369 C2S(NL80211_CMD_UNSPEC) 370 C2S(NL80211_CMD_GET_WIPHY) 371 C2S(NL80211_CMD_SET_WIPHY) 372 C2S(NL80211_CMD_NEW_WIPHY) 373 C2S(NL80211_CMD_DEL_WIPHY) 374 C2S(NL80211_CMD_GET_INTERFACE) 375 C2S(NL80211_CMD_SET_INTERFACE) 376 C2S(NL80211_CMD_NEW_INTERFACE) 377 C2S(NL80211_CMD_DEL_INTERFACE) 378 C2S(NL80211_CMD_GET_KEY) 379 C2S(NL80211_CMD_SET_KEY) 380 C2S(NL80211_CMD_NEW_KEY) 381 C2S(NL80211_CMD_DEL_KEY) 382 C2S(NL80211_CMD_GET_BEACON) 383 C2S(NL80211_CMD_SET_BEACON) 384 C2S(NL80211_CMD_START_AP) 385 C2S(NL80211_CMD_STOP_AP) 386 C2S(NL80211_CMD_GET_STATION) 387 C2S(NL80211_CMD_SET_STATION) 388 C2S(NL80211_CMD_NEW_STATION) 389 C2S(NL80211_CMD_DEL_STATION) 390 C2S(NL80211_CMD_GET_MPATH) 391 C2S(NL80211_CMD_SET_MPATH) 392 C2S(NL80211_CMD_NEW_MPATH) 393 C2S(NL80211_CMD_DEL_MPATH) 394 C2S(NL80211_CMD_SET_BSS) 395 C2S(NL80211_CMD_SET_REG) 396 C2S(NL80211_CMD_REQ_SET_REG) 397 C2S(NL80211_CMD_GET_MESH_CONFIG) 398 C2S(NL80211_CMD_SET_MESH_CONFIG) 399 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 400 C2S(NL80211_CMD_GET_REG) 401 C2S(NL80211_CMD_GET_SCAN) 402 C2S(NL80211_CMD_TRIGGER_SCAN) 403 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 404 C2S(NL80211_CMD_SCAN_ABORTED) 405 C2S(NL80211_CMD_REG_CHANGE) 406 C2S(NL80211_CMD_AUTHENTICATE) 407 C2S(NL80211_CMD_ASSOCIATE) 408 C2S(NL80211_CMD_DEAUTHENTICATE) 409 C2S(NL80211_CMD_DISASSOCIATE) 410 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 411 C2S(NL80211_CMD_REG_BEACON_HINT) 412 C2S(NL80211_CMD_JOIN_IBSS) 413 C2S(NL80211_CMD_LEAVE_IBSS) 414 C2S(NL80211_CMD_TESTMODE) 415 C2S(NL80211_CMD_CONNECT) 416 C2S(NL80211_CMD_ROAM) 417 C2S(NL80211_CMD_DISCONNECT) 418 C2S(NL80211_CMD_SET_WIPHY_NETNS) 419 C2S(NL80211_CMD_GET_SURVEY) 420 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 421 C2S(NL80211_CMD_SET_PMKSA) 422 C2S(NL80211_CMD_DEL_PMKSA) 423 C2S(NL80211_CMD_FLUSH_PMKSA) 424 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 425 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 426 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 427 C2S(NL80211_CMD_REGISTER_FRAME) 428 C2S(NL80211_CMD_FRAME) 429 C2S(NL80211_CMD_FRAME_TX_STATUS) 430 C2S(NL80211_CMD_SET_POWER_SAVE) 431 C2S(NL80211_CMD_GET_POWER_SAVE) 432 C2S(NL80211_CMD_SET_CQM) 433 C2S(NL80211_CMD_NOTIFY_CQM) 434 C2S(NL80211_CMD_SET_CHANNEL) 435 C2S(NL80211_CMD_SET_WDS_PEER) 436 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 437 C2S(NL80211_CMD_JOIN_MESH) 438 C2S(NL80211_CMD_LEAVE_MESH) 439 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 440 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 441 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 442 C2S(NL80211_CMD_GET_WOWLAN) 443 C2S(NL80211_CMD_SET_WOWLAN) 444 C2S(NL80211_CMD_START_SCHED_SCAN) 445 C2S(NL80211_CMD_STOP_SCHED_SCAN) 446 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 447 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 448 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 449 C2S(NL80211_CMD_PMKSA_CANDIDATE) 450 C2S(NL80211_CMD_TDLS_OPER) 451 C2S(NL80211_CMD_TDLS_MGMT) 452 C2S(NL80211_CMD_UNEXPECTED_FRAME) 453 C2S(NL80211_CMD_PROBE_CLIENT) 454 C2S(NL80211_CMD_REGISTER_BEACONS) 455 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 456 C2S(NL80211_CMD_SET_NOACK_MAP) 457 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 458 C2S(NL80211_CMD_START_P2P_DEVICE) 459 C2S(NL80211_CMD_STOP_P2P_DEVICE) 460 C2S(NL80211_CMD_CONN_FAILED) 461 C2S(NL80211_CMD_SET_MCAST_RATE) 462 C2S(NL80211_CMD_SET_MAC_ACL) 463 C2S(NL80211_CMD_RADAR_DETECT) 464 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 465 C2S(NL80211_CMD_UPDATE_FT_IES) 466 C2S(NL80211_CMD_FT_EVENT) 467 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 468 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 469 default: 470 return "NL80211_CMD_UNKNOWN"; 471 } 472#undef C2S 473} 474 475 476static int is_ap_interface(enum nl80211_iftype nlmode) 477{ 478 return (nlmode == NL80211_IFTYPE_AP || 479 nlmode == NL80211_IFTYPE_P2P_GO); 480} 481 482 483static int is_sta_interface(enum nl80211_iftype nlmode) 484{ 485 return (nlmode == NL80211_IFTYPE_STATION || 486 nlmode == NL80211_IFTYPE_P2P_CLIENT); 487} 488 489 490static int is_p2p_net_interface(enum nl80211_iftype nlmode) 491{ 492 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 493 nlmode == NL80211_IFTYPE_P2P_GO); 494} 495 496 497static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 498{ 499 if (drv->associated) 500 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 501 drv->associated = 0; 502 os_memset(drv->bssid, 0, ETH_ALEN); 503} 504 505 506struct nl80211_bss_info_arg { 507 struct wpa_driver_nl80211_data *drv; 508 struct wpa_scan_results *res; 509 unsigned int assoc_freq; 510 u8 assoc_bssid[ETH_ALEN]; 511}; 512 513static int bss_info_handler(struct nl_msg *msg, void *arg); 514 515 516/* nl80211 code */ 517static int ack_handler(struct nl_msg *msg, void *arg) 518{ 519 int *err = arg; 520 *err = 0; 521 return NL_STOP; 522} 523 524static int finish_handler(struct nl_msg *msg, void *arg) 525{ 526 int *ret = arg; 527 *ret = 0; 528 return NL_SKIP; 529} 530 531static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 532 void *arg) 533{ 534 int *ret = arg; 535 *ret = err->error; 536 return NL_SKIP; 537} 538 539 540static int no_seq_check(struct nl_msg *msg, void *arg) 541{ 542 return NL_OK; 543} 544 545 546static int send_and_recv(struct nl80211_global *global, 547 struct nl_handle *nl_handle, struct nl_msg *msg, 548 int (*valid_handler)(struct nl_msg *, void *), 549 void *valid_data) 550{ 551 struct nl_cb *cb; 552 int err = -ENOMEM; 553 554 cb = nl_cb_clone(global->nl_cb); 555 if (!cb) 556 goto out; 557 558 err = nl_send_auto_complete(nl_handle, msg); 559 if (err < 0) 560 goto out; 561 562 err = 1; 563 564 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 565 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 566 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 567 568 if (valid_handler) 569 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 570 valid_handler, valid_data); 571 572 while (err > 0) 573 nl_recvmsgs(nl_handle, cb); 574 out: 575 nl_cb_put(cb); 576 nlmsg_free(msg); 577 return err; 578} 579 580 581static int send_and_recv_msgs_global(struct nl80211_global *global, 582 struct nl_msg *msg, 583 int (*valid_handler)(struct nl_msg *, void *), 584 void *valid_data) 585{ 586 return send_and_recv(global, global->nl, msg, valid_handler, 587 valid_data); 588} 589 590 591#ifndef ANDROID 592static 593#endif 594int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 595 struct nl_msg *msg, 596 int (*valid_handler)(struct nl_msg *, void *), 597 void *valid_data) 598{ 599 return send_and_recv(drv->global, drv->global->nl, msg, 600 valid_handler, valid_data); 601} 602 603 604struct family_data { 605 const char *group; 606 int id; 607}; 608 609 610static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 611{ 612 if (bss->wdev_id_set) 613 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 614 else 615 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 616 return 0; 617 618nla_put_failure: 619 return -1; 620} 621 622 623static int family_handler(struct nl_msg *msg, void *arg) 624{ 625 struct family_data *res = arg; 626 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 627 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 628 struct nlattr *mcgrp; 629 int i; 630 631 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 632 genlmsg_attrlen(gnlh, 0), NULL); 633 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 634 return NL_SKIP; 635 636 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 637 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 638 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 639 nla_len(mcgrp), NULL); 640 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 641 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 642 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 643 res->group, 644 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 645 continue; 646 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 647 break; 648 }; 649 650 return NL_SKIP; 651} 652 653 654static int nl_get_multicast_id(struct nl80211_global *global, 655 const char *family, const char *group) 656{ 657 struct nl_msg *msg; 658 int ret = -1; 659 struct family_data res = { group, -ENOENT }; 660 661 msg = nlmsg_alloc(); 662 if (!msg) 663 return -ENOMEM; 664 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 665 0, 0, CTRL_CMD_GETFAMILY, 0); 666 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 667 668 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 669 msg = NULL; 670 if (ret == 0) 671 ret = res.id; 672 673nla_put_failure: 674 nlmsg_free(msg); 675 return ret; 676} 677 678 679static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 680 struct nl_msg *msg, int flags, uint8_t cmd) 681{ 682 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 683 0, flags, cmd, 0); 684} 685 686 687struct wiphy_idx_data { 688 int wiphy_idx; 689 enum nl80211_iftype nlmode; 690 u8 *macaddr; 691}; 692 693 694static int netdev_info_handler(struct nl_msg *msg, void *arg) 695{ 696 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 697 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 698 struct wiphy_idx_data *info = arg; 699 700 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 701 genlmsg_attrlen(gnlh, 0), NULL); 702 703 if (tb[NL80211_ATTR_WIPHY]) 704 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 705 706 if (tb[NL80211_ATTR_IFTYPE]) 707 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 708 709 if (tb[NL80211_ATTR_MAC] && info->macaddr) 710 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 711 ETH_ALEN); 712 713 return NL_SKIP; 714} 715 716 717static int nl80211_get_wiphy_index(struct i802_bss *bss) 718{ 719 struct nl_msg *msg; 720 struct wiphy_idx_data data = { 721 .wiphy_idx = -1, 722 .macaddr = NULL, 723 }; 724 725 msg = nlmsg_alloc(); 726 if (!msg) 727 return NL80211_IFTYPE_UNSPECIFIED; 728 729 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 730 731 if (nl80211_set_iface_id(msg, bss) < 0) 732 goto nla_put_failure; 733 734 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 735 return data.wiphy_idx; 736 msg = NULL; 737nla_put_failure: 738 nlmsg_free(msg); 739 return -1; 740} 741 742 743static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 744{ 745 struct nl_msg *msg; 746 struct wiphy_idx_data data = { 747 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 748 .macaddr = NULL, 749 }; 750 751 msg = nlmsg_alloc(); 752 if (!msg) 753 return -1; 754 755 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 756 757 if (nl80211_set_iface_id(msg, bss) < 0) 758 goto nla_put_failure; 759 760 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 761 return data.nlmode; 762 msg = NULL; 763nla_put_failure: 764 nlmsg_free(msg); 765 return NL80211_IFTYPE_UNSPECIFIED; 766} 767 768 769#ifndef HOSTAPD 770static int nl80211_get_macaddr(struct i802_bss *bss) 771{ 772 struct nl_msg *msg; 773 struct wiphy_idx_data data = { 774 .macaddr = bss->addr, 775 }; 776 777 msg = nlmsg_alloc(); 778 if (!msg) 779 return NL80211_IFTYPE_UNSPECIFIED; 780 781 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 782 if (nl80211_set_iface_id(msg, bss) < 0) 783 goto nla_put_failure; 784 785 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 786 787nla_put_failure: 788 nlmsg_free(msg); 789 return NL80211_IFTYPE_UNSPECIFIED; 790} 791#endif /* HOSTAPD */ 792 793 794static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 795 struct nl80211_wiphy_data *w) 796{ 797 struct nl_msg *msg; 798 int ret = -1; 799 800 msg = nlmsg_alloc(); 801 if (!msg) 802 return -1; 803 804 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 805 806 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 807 808 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 809 msg = NULL; 810 if (ret) { 811 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 812 "failed: ret=%d (%s)", 813 ret, strerror(-ret)); 814 goto nla_put_failure; 815 } 816 ret = 0; 817nla_put_failure: 818 nlmsg_free(msg); 819 return ret; 820} 821 822 823static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 824{ 825 struct nl80211_wiphy_data *w = eloop_ctx; 826 827 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 828 829 nl_recvmsgs(handle, w->nl_cb); 830} 831 832 833static int process_beacon_event(struct nl_msg *msg, void *arg) 834{ 835 struct nl80211_wiphy_data *w = arg; 836 struct wpa_driver_nl80211_data *drv; 837 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 838 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 839 union wpa_event_data event; 840 841 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 842 genlmsg_attrlen(gnlh, 0), NULL); 843 844 if (gnlh->cmd != NL80211_CMD_FRAME) { 845 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 846 gnlh->cmd); 847 return NL_SKIP; 848 } 849 850 if (!tb[NL80211_ATTR_FRAME]) 851 return NL_SKIP; 852 853 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 854 wiphy_list) { 855 os_memset(&event, 0, sizeof(event)); 856 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 857 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 858 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 859 } 860 861 return NL_SKIP; 862} 863 864 865static struct nl80211_wiphy_data * 866nl80211_get_wiphy_data_ap(struct i802_bss *bss) 867{ 868 static DEFINE_DL_LIST(nl80211_wiphys); 869 struct nl80211_wiphy_data *w; 870 int wiphy_idx, found = 0; 871 struct i802_bss *tmp_bss; 872 873 if (bss->wiphy_data != NULL) 874 return bss->wiphy_data; 875 876 wiphy_idx = nl80211_get_wiphy_index(bss); 877 878 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 879 if (w->wiphy_idx == wiphy_idx) 880 goto add; 881 } 882 883 /* alloc new one */ 884 w = os_zalloc(sizeof(*w)); 885 if (w == NULL) 886 return NULL; 887 w->wiphy_idx = wiphy_idx; 888 dl_list_init(&w->bsss); 889 dl_list_init(&w->drvs); 890 891 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 892 if (!w->nl_cb) { 893 os_free(w); 894 return NULL; 895 } 896 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 897 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 898 w); 899 900 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 901 "wiphy beacons"); 902 if (w->nl_beacons == NULL) { 903 os_free(w); 904 return NULL; 905 } 906 907 if (nl80211_register_beacons(bss->drv, w)) { 908 nl_destroy_handles(&w->nl_beacons); 909 os_free(w); 910 return NULL; 911 } 912 913 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 914 nl80211_recv_beacons, w, w->nl_beacons); 915 916 dl_list_add(&nl80211_wiphys, &w->list); 917 918add: 919 /* drv entry for this bss already there? */ 920 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 921 if (tmp_bss->drv == bss->drv) { 922 found = 1; 923 break; 924 } 925 } 926 /* if not add it */ 927 if (!found) 928 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 929 930 dl_list_add(&w->bsss, &bss->wiphy_list); 931 bss->wiphy_data = w; 932 return w; 933} 934 935 936static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 937{ 938 struct nl80211_wiphy_data *w = bss->wiphy_data; 939 struct i802_bss *tmp_bss; 940 int found = 0; 941 942 if (w == NULL) 943 return; 944 bss->wiphy_data = NULL; 945 dl_list_del(&bss->wiphy_list); 946 947 /* still any for this drv present? */ 948 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 949 if (tmp_bss->drv == bss->drv) { 950 found = 1; 951 break; 952 } 953 } 954 /* if not remove it */ 955 if (!found) 956 dl_list_del(&bss->drv->wiphy_list); 957 958 if (!dl_list_empty(&w->bsss)) 959 return; 960 961 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 962 963 nl_cb_put(w->nl_cb); 964 nl_destroy_handles(&w->nl_beacons); 965 dl_list_del(&w->list); 966 os_free(w); 967} 968 969 970static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 971{ 972 struct i802_bss *bss = priv; 973 struct wpa_driver_nl80211_data *drv = bss->drv; 974 if (!drv->associated) 975 return -1; 976 os_memcpy(bssid, drv->bssid, ETH_ALEN); 977 return 0; 978} 979 980 981static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 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(ssid, drv->ssid, drv->ssid_len); 988 return drv->ssid_len; 989} 990 991 992static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 993 char *buf, size_t len, int del) 994{ 995 union wpa_event_data event; 996 997 os_memset(&event, 0, sizeof(event)); 998 if (len > sizeof(event.interface_status.ifname)) 999 len = sizeof(event.interface_status.ifname) - 1; 1000 os_memcpy(event.interface_status.ifname, buf, len); 1001 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1002 EVENT_INTERFACE_ADDED; 1003 1004 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1005 del ? "DEL" : "NEW", 1006 event.interface_status.ifname, 1007 del ? "removed" : "added"); 1008 1009 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 1010 if (del) { 1011 if (drv->if_removed) { 1012 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1013 "already set - ignore event"); 1014 return; 1015 } 1016 drv->if_removed = 1; 1017 } else { 1018 if (if_nametoindex(drv->first_bss.ifname) == 0) { 1019 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1020 "does not exist - ignore " 1021 "RTM_NEWLINK", 1022 drv->first_bss.ifname); 1023 return; 1024 } 1025 if (!drv->if_removed) { 1026 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1027 "already cleared - ignore event"); 1028 return; 1029 } 1030 drv->if_removed = 0; 1031 } 1032 } 1033 1034 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1035} 1036 1037 1038static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1039 u8 *buf, size_t len) 1040{ 1041 int attrlen, rta_len; 1042 struct rtattr *attr; 1043 1044 attrlen = len; 1045 attr = (struct rtattr *) buf; 1046 1047 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1048 while (RTA_OK(attr, attrlen)) { 1049 if (attr->rta_type == IFLA_IFNAME) { 1050 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 1051 == 0) 1052 return 1; 1053 else 1054 break; 1055 } 1056 attr = RTA_NEXT(attr, attrlen); 1057 } 1058 1059 return 0; 1060} 1061 1062 1063static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1064 int ifindex, u8 *buf, size_t len) 1065{ 1066 if (drv->ifindex == ifindex) 1067 return 1; 1068 1069 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1070 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); 1071 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1072 "interface"); 1073 wpa_driver_nl80211_finish_drv_init(drv); 1074 return 1; 1075 } 1076 1077 return 0; 1078} 1079 1080 1081static struct wpa_driver_nl80211_data * 1082nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1083{ 1084 struct wpa_driver_nl80211_data *drv; 1085 dl_list_for_each(drv, &global->interfaces, 1086 struct wpa_driver_nl80211_data, list) { 1087 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1088 have_ifidx(drv, idx)) 1089 return drv; 1090 } 1091 return NULL; 1092} 1093 1094 1095static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1096 struct ifinfomsg *ifi, 1097 u8 *buf, size_t len) 1098{ 1099 struct nl80211_global *global = ctx; 1100 struct wpa_driver_nl80211_data *drv; 1101 int attrlen, rta_len; 1102 struct rtattr *attr; 1103 u32 brid = 0; 1104 char namebuf[IFNAMSIZ]; 1105 1106 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1107 if (!drv) { 1108 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1109 "ifindex %d", ifi->ifi_index); 1110 return; 1111 } 1112 1113 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1114 "(%s%s%s%s)", 1115 drv->operstate, ifi->ifi_flags, 1116 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1117 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1118 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1119 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1120 1121 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1122 if (if_indextoname(ifi->ifi_index, namebuf) && 1123 linux_iface_up(drv->global->ioctl_sock, 1124 drv->first_bss.ifname) > 0) { 1125 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1126 "event since interface %s is up", namebuf); 1127 return; 1128 } 1129 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1130 if (drv->ignore_if_down_event) { 1131 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1132 "event generated by mode change"); 1133 drv->ignore_if_down_event = 0; 1134 } else { 1135 drv->if_disabled = 1; 1136 wpa_supplicant_event(drv->ctx, 1137 EVENT_INTERFACE_DISABLED, NULL); 1138 } 1139 } 1140 1141 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1142 if (if_indextoname(ifi->ifi_index, namebuf) && 1143 linux_iface_up(drv->global->ioctl_sock, 1144 drv->first_bss.ifname) == 0) { 1145 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1146 "event since interface %s is down", 1147 namebuf); 1148 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 1149 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1150 "event since interface %s does not exist", 1151 drv->first_bss.ifname); 1152 } else if (drv->if_removed) { 1153 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1154 "event since interface %s is marked " 1155 "removed", drv->first_bss.ifname); 1156 } else { 1157 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1158 drv->if_disabled = 0; 1159 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1160 NULL); 1161 } 1162 } 1163 1164 /* 1165 * Some drivers send the association event before the operup event--in 1166 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1167 * fails. This will hit us when wpa_supplicant does not need to do 1168 * IEEE 802.1X authentication 1169 */ 1170 if (drv->operstate == 1 && 1171 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1172 !(ifi->ifi_flags & IFF_RUNNING)) 1173 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1174 -1, IF_OPER_UP); 1175 1176 attrlen = len; 1177 attr = (struct rtattr *) buf; 1178 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1179 while (RTA_OK(attr, attrlen)) { 1180 if (attr->rta_type == IFLA_IFNAME) { 1181 wpa_driver_nl80211_event_link( 1182 drv, 1183 ((char *) attr) + rta_len, 1184 attr->rta_len - rta_len, 0); 1185 } else if (attr->rta_type == IFLA_MASTER) 1186 brid = nla_get_u32((struct nlattr *) attr); 1187 attr = RTA_NEXT(attr, attrlen); 1188 } 1189 1190 if (ifi->ifi_family == AF_BRIDGE && brid) { 1191 /* device has been added to bridge */ 1192 if_indextoname(brid, namebuf); 1193 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1194 brid, namebuf); 1195 add_ifidx(drv, brid); 1196 } 1197} 1198 1199 1200static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1201 struct ifinfomsg *ifi, 1202 u8 *buf, size_t len) 1203{ 1204 struct nl80211_global *global = ctx; 1205 struct wpa_driver_nl80211_data *drv; 1206 int attrlen, rta_len; 1207 struct rtattr *attr; 1208 u32 brid = 0; 1209 1210 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1211 if (!drv) { 1212 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1213 "foreign ifindex %d", ifi->ifi_index); 1214 return; 1215 } 1216 1217 attrlen = len; 1218 attr = (struct rtattr *) buf; 1219 1220 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1221 while (RTA_OK(attr, attrlen)) { 1222 if (attr->rta_type == IFLA_IFNAME) { 1223 wpa_driver_nl80211_event_link( 1224 drv, 1225 ((char *) attr) + rta_len, 1226 attr->rta_len - rta_len, 1); 1227 } else if (attr->rta_type == IFLA_MASTER) 1228 brid = nla_get_u32((struct nlattr *) attr); 1229 attr = RTA_NEXT(attr, attrlen); 1230 } 1231 1232 if (ifi->ifi_family == AF_BRIDGE && brid) { 1233 /* device has been removed from bridge */ 1234 char namebuf[IFNAMSIZ]; 1235 if_indextoname(brid, namebuf); 1236 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1237 "%s", brid, namebuf); 1238 del_ifidx(drv, brid); 1239 } 1240} 1241 1242 1243static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1244 const u8 *frame, size_t len) 1245{ 1246 const struct ieee80211_mgmt *mgmt; 1247 union wpa_event_data event; 1248 1249 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1250 mgmt = (const struct ieee80211_mgmt *) frame; 1251 if (len < 24 + sizeof(mgmt->u.auth)) { 1252 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1253 "frame"); 1254 return; 1255 } 1256 1257 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1258 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1259 os_memset(&event, 0, sizeof(event)); 1260 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1261 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1262 event.auth.auth_transaction = 1263 le_to_host16(mgmt->u.auth.auth_transaction); 1264 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1265 if (len > 24 + sizeof(mgmt->u.auth)) { 1266 event.auth.ies = mgmt->u.auth.variable; 1267 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1268 } 1269 1270 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1271} 1272 1273 1274static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1275{ 1276 struct nl_msg *msg; 1277 int ret; 1278 struct nl80211_bss_info_arg arg; 1279 1280 os_memset(&arg, 0, sizeof(arg)); 1281 msg = nlmsg_alloc(); 1282 if (!msg) 1283 goto nla_put_failure; 1284 1285 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1286 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1287 1288 arg.drv = drv; 1289 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1290 msg = NULL; 1291 if (ret == 0) { 1292 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1293 "associated BSS from scan results: %u MHz", 1294 arg.assoc_freq); 1295 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; 1296 } 1297 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1298 "(%s)", ret, strerror(-ret)); 1299nla_put_failure: 1300 nlmsg_free(msg); 1301 return drv->assoc_freq; 1302} 1303 1304 1305static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1306 const u8 *frame, size_t len) 1307{ 1308 const struct ieee80211_mgmt *mgmt; 1309 union wpa_event_data event; 1310 u16 status; 1311 1312 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1313 mgmt = (const struct ieee80211_mgmt *) frame; 1314 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1315 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1316 "frame"); 1317 return; 1318 } 1319 1320 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1321 if (status != WLAN_STATUS_SUCCESS) { 1322 os_memset(&event, 0, sizeof(event)); 1323 event.assoc_reject.bssid = mgmt->bssid; 1324 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1325 event.assoc_reject.resp_ies = 1326 (u8 *) mgmt->u.assoc_resp.variable; 1327 event.assoc_reject.resp_ies_len = 1328 len - 24 - sizeof(mgmt->u.assoc_resp); 1329 } 1330 event.assoc_reject.status_code = status; 1331 1332 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1333 return; 1334 } 1335 1336 drv->associated = 1; 1337 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1338 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1339 1340 os_memset(&event, 0, sizeof(event)); 1341 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1342 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1343 event.assoc_info.resp_ies_len = 1344 len - 24 - sizeof(mgmt->u.assoc_resp); 1345 } 1346 1347 event.assoc_info.freq = drv->assoc_freq; 1348 1349 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1350} 1351 1352 1353static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1354 enum nl80211_commands cmd, struct nlattr *status, 1355 struct nlattr *addr, struct nlattr *req_ie, 1356 struct nlattr *resp_ie) 1357{ 1358 union wpa_event_data event; 1359 1360 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1361 /* 1362 * Avoid reporting two association events that would confuse 1363 * the core code. 1364 */ 1365 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1366 "when using userspace SME", cmd); 1367 return; 1368 } 1369 1370 if (cmd == NL80211_CMD_CONNECT) 1371 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1372 else if (cmd == NL80211_CMD_ROAM) 1373 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1374 1375 os_memset(&event, 0, sizeof(event)); 1376 if (cmd == NL80211_CMD_CONNECT && 1377 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1378 if (addr) 1379 event.assoc_reject.bssid = nla_data(addr); 1380 if (resp_ie) { 1381 event.assoc_reject.resp_ies = nla_data(resp_ie); 1382 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1383 } 1384 event.assoc_reject.status_code = nla_get_u16(status); 1385 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1386 return; 1387 } 1388 1389 drv->associated = 1; 1390 if (addr) { 1391 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1392 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1393 } 1394 1395 if (req_ie) { 1396 event.assoc_info.req_ies = nla_data(req_ie); 1397 event.assoc_info.req_ies_len = nla_len(req_ie); 1398 } 1399 if (resp_ie) { 1400 event.assoc_info.resp_ies = nla_data(resp_ie); 1401 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1402 } 1403 1404 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1405 1406 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1407} 1408 1409 1410static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1411 struct nlattr *reason, struct nlattr *addr, 1412 struct nlattr *by_ap) 1413{ 1414 union wpa_event_data data; 1415 unsigned int locally_generated = by_ap == NULL; 1416 1417 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1418 /* 1419 * Avoid reporting two disassociation events that could 1420 * confuse the core code. 1421 */ 1422 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1423 "event when using userspace SME"); 1424 return; 1425 } 1426 1427 if (drv->ignore_next_local_disconnect) { 1428 drv->ignore_next_local_disconnect = 0; 1429 if (locally_generated) { 1430 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1431 "event triggered during reassociation"); 1432 return; 1433 } 1434 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1435 "disconnect but got another disconnect " 1436 "event first"); 1437 } 1438 1439 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1440 nl80211_mark_disconnected(drv); 1441 os_memset(&data, 0, sizeof(data)); 1442 if (reason) 1443 data.deauth_info.reason_code = nla_get_u16(reason); 1444 data.deauth_info.locally_generated = by_ap == NULL; 1445 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1446} 1447 1448 1449static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1450 struct nlattr *freq, struct nlattr *type) 1451{ 1452 union wpa_event_data data; 1453 int ht_enabled = 1; 1454 int chan_offset = 0; 1455 1456 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1457 1458 if (!freq || !type) 1459 return; 1460 1461 switch (nla_get_u32(type)) { 1462 case NL80211_CHAN_NO_HT: 1463 ht_enabled = 0; 1464 break; 1465 case NL80211_CHAN_HT20: 1466 break; 1467 case NL80211_CHAN_HT40PLUS: 1468 chan_offset = 1; 1469 break; 1470 case NL80211_CHAN_HT40MINUS: 1471 chan_offset = -1; 1472 break; 1473 } 1474 1475 data.ch_switch.freq = nla_get_u32(freq); 1476 data.ch_switch.ht_enabled = ht_enabled; 1477 data.ch_switch.ch_offset = chan_offset; 1478 1479 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1480} 1481 1482 1483static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1484 enum nl80211_commands cmd, struct nlattr *addr) 1485{ 1486 union wpa_event_data event; 1487 enum wpa_event_type ev; 1488 1489 if (nla_len(addr) != ETH_ALEN) 1490 return; 1491 1492 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1493 cmd, MAC2STR((u8 *) nla_data(addr))); 1494 1495 if (cmd == NL80211_CMD_AUTHENTICATE) 1496 ev = EVENT_AUTH_TIMED_OUT; 1497 else if (cmd == NL80211_CMD_ASSOCIATE) 1498 ev = EVENT_ASSOC_TIMED_OUT; 1499 else 1500 return; 1501 1502 os_memset(&event, 0, sizeof(event)); 1503 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1504 wpa_supplicant_event(drv->ctx, ev, &event); 1505} 1506 1507 1508static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1509 struct nlattr *freq, struct nlattr *sig, 1510 const u8 *frame, size_t len) 1511{ 1512 const struct ieee80211_mgmt *mgmt; 1513 union wpa_event_data event; 1514 u16 fc, stype; 1515 int ssi_signal = 0; 1516 1517 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1518 mgmt = (const struct ieee80211_mgmt *) frame; 1519 if (len < 24) { 1520 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1521 return; 1522 } 1523 1524 fc = le_to_host16(mgmt->frame_control); 1525 stype = WLAN_FC_GET_STYPE(fc); 1526 1527 if (sig) 1528 ssi_signal = (s32) nla_get_u32(sig); 1529 1530 os_memset(&event, 0, sizeof(event)); 1531 if (freq) { 1532 event.rx_action.freq = nla_get_u32(freq); 1533 drv->last_mgmt_freq = event.rx_action.freq; 1534 } 1535 if (stype == WLAN_FC_STYPE_ACTION) { 1536 event.rx_action.da = mgmt->da; 1537 event.rx_action.sa = mgmt->sa; 1538 event.rx_action.bssid = mgmt->bssid; 1539 event.rx_action.category = mgmt->u.action.category; 1540 event.rx_action.data = &mgmt->u.action.category + 1; 1541 event.rx_action.len = frame + len - event.rx_action.data; 1542 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1543 } else { 1544 event.rx_mgmt.frame = frame; 1545 event.rx_mgmt.frame_len = len; 1546 event.rx_mgmt.ssi_signal = ssi_signal; 1547 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1548 } 1549} 1550 1551 1552static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1553 struct nlattr *cookie, const u8 *frame, 1554 size_t len, struct nlattr *ack) 1555{ 1556 union wpa_event_data event; 1557 const struct ieee80211_hdr *hdr; 1558 u16 fc; 1559 1560 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1561 if (!is_ap_interface(drv->nlmode)) { 1562 u64 cookie_val; 1563 1564 if (!cookie) 1565 return; 1566 1567 cookie_val = nla_get_u64(cookie); 1568 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1569 " cookie=0%llx%s (ack=%d)", 1570 (long long unsigned int) cookie_val, 1571 cookie_val == drv->send_action_cookie ? 1572 " (match)" : " (unknown)", ack != NULL); 1573 if (cookie_val != drv->send_action_cookie) 1574 return; 1575 } 1576 1577 hdr = (const struct ieee80211_hdr *) frame; 1578 fc = le_to_host16(hdr->frame_control); 1579 1580 os_memset(&event, 0, sizeof(event)); 1581 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1582 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1583 event.tx_status.dst = hdr->addr1; 1584 event.tx_status.data = frame; 1585 event.tx_status.data_len = len; 1586 event.tx_status.ack = ack != NULL; 1587 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1588} 1589 1590 1591static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1592 enum wpa_event_type type, 1593 const u8 *frame, size_t len) 1594{ 1595 const struct ieee80211_mgmt *mgmt; 1596 union wpa_event_data event; 1597 const u8 *bssid = NULL; 1598 u16 reason_code = 0; 1599 1600 if (type == EVENT_DEAUTH) 1601 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1602 else 1603 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1604 1605 mgmt = (const struct ieee80211_mgmt *) frame; 1606 if (len >= 24) { 1607 bssid = mgmt->bssid; 1608 1609 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1610 !drv->associated && 1611 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1612 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1613 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1614 /* 1615 * Avoid issues with some roaming cases where 1616 * disconnection event for the old AP may show up after 1617 * we have started connection with the new AP. 1618 */ 1619 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1620 MAC2STR(bssid), 1621 MAC2STR(drv->auth_attempt_bssid)); 1622 return; 1623 } 1624 1625 if (drv->associated != 0 && 1626 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1627 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1628 /* 1629 * We have presumably received this deauth as a 1630 * response to a clear_state_mismatch() outgoing 1631 * deauth. Don't let it take us offline! 1632 */ 1633 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1634 "from Unknown BSSID " MACSTR " -- ignoring", 1635 MAC2STR(bssid)); 1636 return; 1637 } 1638 } 1639 1640 nl80211_mark_disconnected(drv); 1641 os_memset(&event, 0, sizeof(event)); 1642 1643 /* Note: Same offset for Reason Code in both frame subtypes */ 1644 if (len >= 24 + sizeof(mgmt->u.deauth)) 1645 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1646 1647 if (type == EVENT_DISASSOC) { 1648 event.disassoc_info.locally_generated = 1649 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1650 event.disassoc_info.addr = bssid; 1651 event.disassoc_info.reason_code = reason_code; 1652 if (frame + len > mgmt->u.disassoc.variable) { 1653 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1654 event.disassoc_info.ie_len = frame + len - 1655 mgmt->u.disassoc.variable; 1656 } 1657 } else { 1658 event.deauth_info.locally_generated = 1659 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1660 event.deauth_info.addr = bssid; 1661 event.deauth_info.reason_code = reason_code; 1662 if (frame + len > mgmt->u.deauth.variable) { 1663 event.deauth_info.ie = mgmt->u.deauth.variable; 1664 event.deauth_info.ie_len = frame + len - 1665 mgmt->u.deauth.variable; 1666 } 1667 } 1668 1669 wpa_supplicant_event(drv->ctx, type, &event); 1670} 1671 1672 1673static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1674 enum wpa_event_type type, 1675 const u8 *frame, size_t len) 1676{ 1677 const struct ieee80211_mgmt *mgmt; 1678 union wpa_event_data event; 1679 u16 reason_code = 0; 1680 1681 if (type == EVENT_UNPROT_DEAUTH) 1682 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1683 else 1684 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1685 1686 if (len < 24) 1687 return; 1688 1689 mgmt = (const struct ieee80211_mgmt *) frame; 1690 1691 os_memset(&event, 0, sizeof(event)); 1692 /* Note: Same offset for Reason Code in both frame subtypes */ 1693 if (len >= 24 + sizeof(mgmt->u.deauth)) 1694 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1695 1696 if (type == EVENT_UNPROT_DISASSOC) { 1697 event.unprot_disassoc.sa = mgmt->sa; 1698 event.unprot_disassoc.da = mgmt->da; 1699 event.unprot_disassoc.reason_code = reason_code; 1700 } else { 1701 event.unprot_deauth.sa = mgmt->sa; 1702 event.unprot_deauth.da = mgmt->da; 1703 event.unprot_deauth.reason_code = reason_code; 1704 } 1705 1706 wpa_supplicant_event(drv->ctx, type, &event); 1707} 1708 1709 1710static void mlme_event(struct i802_bss *bss, 1711 enum nl80211_commands cmd, struct nlattr *frame, 1712 struct nlattr *addr, struct nlattr *timed_out, 1713 struct nlattr *freq, struct nlattr *ack, 1714 struct nlattr *cookie, struct nlattr *sig) 1715{ 1716 struct wpa_driver_nl80211_data *drv = bss->drv; 1717 const u8 *data; 1718 size_t len; 1719 1720 if (timed_out && addr) { 1721 mlme_timeout_event(drv, cmd, addr); 1722 return; 1723 } 1724 1725 if (frame == NULL) { 1726 wpa_printf(MSG_DEBUG, 1727 "nl80211: MLME event %d (%s) without frame data", 1728 cmd, nl80211_command_to_string(cmd)); 1729 return; 1730 } 1731 1732 data = nla_data(frame); 1733 len = nla_len(frame); 1734 if (len < 4 + 2 * ETH_ALEN) { 1735 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1736 MACSTR ") - too short", 1737 cmd, nl80211_command_to_string(cmd), bss->ifname, 1738 MAC2STR(bss->addr)); 1739 return; 1740 } 1741 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1742 ") A1=" MACSTR " A2=" MACSTR, cmd, 1743 nl80211_command_to_string(cmd), bss->ifname, 1744 MAC2STR(bss->addr), MAC2STR(data + 4), 1745 MAC2STR(data + 4 + ETH_ALEN)); 1746 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1747 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1748 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1749 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1750 "for foreign address", bss->ifname); 1751 return; 1752 } 1753 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1754 nla_data(frame), nla_len(frame)); 1755 1756 switch (cmd) { 1757 case NL80211_CMD_AUTHENTICATE: 1758 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1759 break; 1760 case NL80211_CMD_ASSOCIATE: 1761 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1762 break; 1763 case NL80211_CMD_DEAUTHENTICATE: 1764 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1765 nla_data(frame), nla_len(frame)); 1766 break; 1767 case NL80211_CMD_DISASSOCIATE: 1768 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1769 nla_data(frame), nla_len(frame)); 1770 break; 1771 case NL80211_CMD_FRAME: 1772 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1773 nla_len(frame)); 1774 break; 1775 case NL80211_CMD_FRAME_TX_STATUS: 1776 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1777 nla_len(frame), ack); 1778 break; 1779 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1780 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1781 nla_data(frame), nla_len(frame)); 1782 break; 1783 case NL80211_CMD_UNPROT_DISASSOCIATE: 1784 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1785 nla_data(frame), nla_len(frame)); 1786 break; 1787 default: 1788 break; 1789 } 1790} 1791 1792 1793static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1794 struct nlattr *tb[]) 1795{ 1796 union wpa_event_data data; 1797 1798 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1799 os_memset(&data, 0, sizeof(data)); 1800 if (tb[NL80211_ATTR_MAC]) { 1801 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1802 nla_data(tb[NL80211_ATTR_MAC]), 1803 nla_len(tb[NL80211_ATTR_MAC])); 1804 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1805 } 1806 if (tb[NL80211_ATTR_KEY_SEQ]) { 1807 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1808 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1809 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1810 } 1811 if (tb[NL80211_ATTR_KEY_TYPE]) { 1812 enum nl80211_key_type key_type = 1813 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1814 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1815 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1816 data.michael_mic_failure.unicast = 1; 1817 } else 1818 data.michael_mic_failure.unicast = 1; 1819 1820 if (tb[NL80211_ATTR_KEY_IDX]) { 1821 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1822 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1823 } 1824 1825 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1826} 1827 1828 1829static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1830 struct nlattr *tb[]) 1831{ 1832 if (tb[NL80211_ATTR_MAC] == NULL) { 1833 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1834 "event"); 1835 return; 1836 } 1837 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1838 drv->associated = 1; 1839 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1840 MAC2STR(drv->bssid)); 1841 1842 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1843} 1844 1845 1846static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1847 int cancel_event, struct nlattr *tb[]) 1848{ 1849 unsigned int freq, chan_type, duration; 1850 union wpa_event_data data; 1851 u64 cookie; 1852 1853 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1854 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1855 else 1856 freq = 0; 1857 1858 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1859 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1860 else 1861 chan_type = 0; 1862 1863 if (tb[NL80211_ATTR_DURATION]) 1864 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1865 else 1866 duration = 0; 1867 1868 if (tb[NL80211_ATTR_COOKIE]) 1869 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1870 else 1871 cookie = 0; 1872 1873 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1874 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1875 cancel_event, freq, chan_type, duration, 1876 (long long unsigned int) cookie, 1877 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1878 1879 if (cookie != drv->remain_on_chan_cookie) 1880 return; /* not for us */ 1881 1882 if (cancel_event) 1883 drv->pending_remain_on_chan = 0; 1884 1885 os_memset(&data, 0, sizeof(data)); 1886 data.remain_on_channel.freq = freq; 1887 data.remain_on_channel.duration = duration; 1888 wpa_supplicant_event(drv->ctx, cancel_event ? 1889 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1890 EVENT_REMAIN_ON_CHANNEL, &data); 1891} 1892 1893 1894static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1895 struct nlattr *tb[]) 1896{ 1897 union wpa_event_data data; 1898 1899 os_memset(&data, 0, sizeof(data)); 1900 1901 if (tb[NL80211_ATTR_IE]) { 1902 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1903 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1904 } 1905 1906 if (tb[NL80211_ATTR_IE_RIC]) { 1907 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1908 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1909 } 1910 1911 if (tb[NL80211_ATTR_MAC]) 1912 os_memcpy(data.ft_ies.target_ap, 1913 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1914 1915 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1916 MAC2STR(data.ft_ies.target_ap)); 1917 1918 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1919} 1920 1921 1922static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1923 struct nlattr *tb[]) 1924{ 1925 union wpa_event_data event; 1926 struct nlattr *nl; 1927 int rem; 1928 struct scan_info *info; 1929#define MAX_REPORT_FREQS 50 1930 int freqs[MAX_REPORT_FREQS]; 1931 int num_freqs = 0; 1932 1933 if (drv->scan_for_auth) { 1934 drv->scan_for_auth = 0; 1935 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1936 "cfg80211 BSS entry"); 1937 wpa_driver_nl80211_authenticate_retry(drv); 1938 return; 1939 } 1940 1941 os_memset(&event, 0, sizeof(event)); 1942 info = &event.scan_info; 1943 info->aborted = aborted; 1944 1945 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1946 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1947 struct wpa_driver_scan_ssid *s = 1948 &info->ssids[info->num_ssids]; 1949 s->ssid = nla_data(nl); 1950 s->ssid_len = nla_len(nl); 1951 info->num_ssids++; 1952 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1953 break; 1954 } 1955 } 1956 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1957 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1958 { 1959 freqs[num_freqs] = nla_get_u32(nl); 1960 num_freqs++; 1961 if (num_freqs == MAX_REPORT_FREQS - 1) 1962 break; 1963 } 1964 info->freqs = freqs; 1965 info->num_freqs = num_freqs; 1966 } 1967 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1968} 1969 1970 1971static int get_link_signal(struct nl_msg *msg, void *arg) 1972{ 1973 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1974 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1975 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1976 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1977 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1978 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 1979 }; 1980 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1981 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1982 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1983 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1984 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1985 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1986 }; 1987 struct wpa_signal_info *sig_change = arg; 1988 1989 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1990 genlmsg_attrlen(gnlh, 0), NULL); 1991 if (!tb[NL80211_ATTR_STA_INFO] || 1992 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 1993 tb[NL80211_ATTR_STA_INFO], policy)) 1994 return NL_SKIP; 1995 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 1996 return NL_SKIP; 1997 1998 sig_change->current_signal = 1999 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2000 2001 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2002 sig_change->avg_signal = 2003 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2004 else 2005 sig_change->avg_signal = 0; 2006 2007 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2008 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2009 sinfo[NL80211_STA_INFO_TX_BITRATE], 2010 rate_policy)) { 2011 sig_change->current_txrate = 0; 2012 } else { 2013 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2014 sig_change->current_txrate = 2015 nla_get_u16(rinfo[ 2016 NL80211_RATE_INFO_BITRATE]) * 100; 2017 } 2018 } 2019 } 2020 2021 return NL_SKIP; 2022} 2023 2024 2025static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2026 struct wpa_signal_info *sig) 2027{ 2028 struct nl_msg *msg; 2029 2030 sig->current_signal = -9999; 2031 sig->current_txrate = 0; 2032 2033 msg = nlmsg_alloc(); 2034 if (!msg) 2035 return -ENOMEM; 2036 2037 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2038 2039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2040 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2041 2042 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2043 nla_put_failure: 2044 nlmsg_free(msg); 2045 return -ENOBUFS; 2046} 2047 2048 2049static int get_link_noise(struct nl_msg *msg, void *arg) 2050{ 2051 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2052 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2053 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2054 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2055 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2056 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2057 }; 2058 struct wpa_signal_info *sig_change = arg; 2059 2060 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2061 genlmsg_attrlen(gnlh, 0), NULL); 2062 2063 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2064 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2065 return NL_SKIP; 2066 } 2067 2068 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2069 tb[NL80211_ATTR_SURVEY_INFO], 2070 survey_policy)) { 2071 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2072 "attributes!"); 2073 return NL_SKIP; 2074 } 2075 2076 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2077 return NL_SKIP; 2078 2079 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2080 sig_change->frequency) 2081 return NL_SKIP; 2082 2083 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2084 return NL_SKIP; 2085 2086 sig_change->current_noise = 2087 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2088 2089 return NL_SKIP; 2090} 2091 2092 2093static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2094 struct wpa_signal_info *sig_change) 2095{ 2096 struct nl_msg *msg; 2097 2098 sig_change->current_noise = 9999; 2099 sig_change->frequency = drv->assoc_freq; 2100 2101 msg = nlmsg_alloc(); 2102 if (!msg) 2103 return -ENOMEM; 2104 2105 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2106 2107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2108 2109 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2110 nla_put_failure: 2111 nlmsg_free(msg); 2112 return -ENOBUFS; 2113} 2114 2115 2116static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2117{ 2118 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2119 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2120 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2121 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2122 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2123 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2124 }; 2125 struct wpa_scan_results *scan_results = arg; 2126 struct wpa_scan_res *scan_res; 2127 size_t i; 2128 2129 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2130 genlmsg_attrlen(gnlh, 0), NULL); 2131 2132 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2133 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2134 return NL_SKIP; 2135 } 2136 2137 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2138 tb[NL80211_ATTR_SURVEY_INFO], 2139 survey_policy)) { 2140 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2141 "attributes"); 2142 return NL_SKIP; 2143 } 2144 2145 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2146 return NL_SKIP; 2147 2148 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2149 return NL_SKIP; 2150 2151 for (i = 0; i < scan_results->num; ++i) { 2152 scan_res = scan_results->res[i]; 2153 if (!scan_res) 2154 continue; 2155 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2156 scan_res->freq) 2157 continue; 2158 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2159 continue; 2160 scan_res->noise = (s8) 2161 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2162 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2163 } 2164 2165 return NL_SKIP; 2166} 2167 2168 2169static int nl80211_get_noise_for_scan_results( 2170 struct wpa_driver_nl80211_data *drv, 2171 struct wpa_scan_results *scan_res) 2172{ 2173 struct nl_msg *msg; 2174 2175 msg = nlmsg_alloc(); 2176 if (!msg) 2177 return -ENOMEM; 2178 2179 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2180 2181 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2182 2183 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2184 scan_res); 2185 nla_put_failure: 2186 nlmsg_free(msg); 2187 return -ENOBUFS; 2188} 2189 2190 2191static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2192 struct nlattr *tb[]) 2193{ 2194 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2195 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2196 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2197 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2198 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2199 }; 2200 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2201 enum nl80211_cqm_rssi_threshold_event event; 2202 union wpa_event_data ed; 2203 struct wpa_signal_info sig; 2204 int res; 2205 2206 if (tb[NL80211_ATTR_CQM] == NULL || 2207 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2208 cqm_policy)) { 2209 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2210 return; 2211 } 2212 2213 os_memset(&ed, 0, sizeof(ed)); 2214 2215 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2216 if (!tb[NL80211_ATTR_MAC]) 2217 return; 2218 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2219 ETH_ALEN); 2220 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2221 return; 2222 } 2223 2224 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2225 return; 2226 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2227 2228 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2229 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2230 "event: RSSI high"); 2231 ed.signal_change.above_threshold = 1; 2232 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2233 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2234 "event: RSSI low"); 2235 ed.signal_change.above_threshold = 0; 2236 } else 2237 return; 2238 2239 res = nl80211_get_link_signal(drv, &sig); 2240 if (res == 0) { 2241 ed.signal_change.current_signal = sig.current_signal; 2242 ed.signal_change.current_txrate = sig.current_txrate; 2243 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2244 sig.current_signal, sig.current_txrate); 2245 } 2246 2247 res = nl80211_get_link_noise(drv, &sig); 2248 if (res == 0) { 2249 ed.signal_change.current_noise = sig.current_noise; 2250 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2251 sig.current_noise); 2252 } 2253 2254 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2255} 2256 2257 2258static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2259 struct nlattr **tb) 2260{ 2261 u8 *addr; 2262 union wpa_event_data data; 2263 2264 if (tb[NL80211_ATTR_MAC] == NULL) 2265 return; 2266 addr = nla_data(tb[NL80211_ATTR_MAC]); 2267 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2268 2269 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2270 u8 *ies = NULL; 2271 size_t ies_len = 0; 2272 if (tb[NL80211_ATTR_IE]) { 2273 ies = nla_data(tb[NL80211_ATTR_IE]); 2274 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2275 } 2276 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2277 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2278 return; 2279 } 2280 2281 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2282 return; 2283 2284 os_memset(&data, 0, sizeof(data)); 2285 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2286 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2287} 2288 2289 2290static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2291 struct nlattr **tb) 2292{ 2293 u8 *addr; 2294 union wpa_event_data data; 2295 2296 if (tb[NL80211_ATTR_MAC] == NULL) 2297 return; 2298 addr = nla_data(tb[NL80211_ATTR_MAC]); 2299 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2300 MAC2STR(addr)); 2301 2302 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2303 drv_event_disassoc(drv->ctx, addr); 2304 return; 2305 } 2306 2307 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2308 return; 2309 2310 os_memset(&data, 0, sizeof(data)); 2311 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2312 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2313} 2314 2315 2316static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2317 struct nlattr **tb) 2318{ 2319 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2320 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2321 [NL80211_REKEY_DATA_KEK] = { 2322 .minlen = NL80211_KEK_LEN, 2323 .maxlen = NL80211_KEK_LEN, 2324 }, 2325 [NL80211_REKEY_DATA_KCK] = { 2326 .minlen = NL80211_KCK_LEN, 2327 .maxlen = NL80211_KCK_LEN, 2328 }, 2329 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2330 .minlen = NL80211_REPLAY_CTR_LEN, 2331 .maxlen = NL80211_REPLAY_CTR_LEN, 2332 }, 2333 }; 2334 union wpa_event_data data; 2335 2336 if (!tb[NL80211_ATTR_MAC]) 2337 return; 2338 if (!tb[NL80211_ATTR_REKEY_DATA]) 2339 return; 2340 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2341 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2342 return; 2343 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2344 return; 2345 2346 os_memset(&data, 0, sizeof(data)); 2347 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2348 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2349 MAC2STR(data.driver_gtk_rekey.bssid)); 2350 data.driver_gtk_rekey.replay_ctr = 2351 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2352 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2353 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2354 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2355} 2356 2357 2358static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2359 struct nlattr **tb) 2360{ 2361 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2362 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2363 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2364 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2365 .minlen = ETH_ALEN, 2366 .maxlen = ETH_ALEN, 2367 }, 2368 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2369 }; 2370 union wpa_event_data data; 2371 2372 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2373 2374 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2375 return; 2376 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2377 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2378 return; 2379 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2380 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2381 return; 2382 2383 os_memset(&data, 0, sizeof(data)); 2384 os_memcpy(data.pmkid_candidate.bssid, 2385 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2386 data.pmkid_candidate.index = 2387 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2388 data.pmkid_candidate.preauth = 2389 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2390 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2391} 2392 2393 2394static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2395 struct nlattr **tb) 2396{ 2397 union wpa_event_data data; 2398 2399 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2400 2401 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2402 return; 2403 2404 os_memset(&data, 0, sizeof(data)); 2405 os_memcpy(data.client_poll.addr, 2406 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2407 2408 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2409} 2410 2411 2412static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2413 struct nlattr **tb) 2414{ 2415 union wpa_event_data data; 2416 2417 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2418 2419 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2420 return; 2421 2422 os_memset(&data, 0, sizeof(data)); 2423 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2424 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2425 case NL80211_TDLS_SETUP: 2426 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2427 MACSTR, MAC2STR(data.tdls.peer)); 2428 data.tdls.oper = TDLS_REQUEST_SETUP; 2429 break; 2430 case NL80211_TDLS_TEARDOWN: 2431 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2432 MACSTR, MAC2STR(data.tdls.peer)); 2433 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2434 break; 2435 default: 2436 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2437 "event"); 2438 return; 2439 } 2440 if (tb[NL80211_ATTR_REASON_CODE]) { 2441 data.tdls.reason_code = 2442 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2443 } 2444 2445 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2446} 2447 2448 2449static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2450 struct nlattr **tb) 2451{ 2452 union wpa_event_data data; 2453 u32 reason; 2454 2455 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2456 2457 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2458 return; 2459 2460 os_memset(&data, 0, sizeof(data)); 2461 os_memcpy(data.connect_failed_reason.addr, 2462 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2463 2464 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2465 switch (reason) { 2466 case NL80211_CONN_FAIL_MAX_CLIENTS: 2467 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2468 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2469 break; 2470 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2471 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2472 " tried to connect", 2473 MAC2STR(data.connect_failed_reason.addr)); 2474 data.connect_failed_reason.code = BLOCKED_CLIENT; 2475 break; 2476 default: 2477 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2478 "%u", reason); 2479 return; 2480 } 2481 2482 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2483} 2484 2485 2486static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2487 struct nlattr **tb) 2488{ 2489 union wpa_event_data data; 2490 enum nl80211_radar_event event_type; 2491 2492 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2493 return; 2494 2495 os_memset(&data, 0, sizeof(data)); 2496 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2497 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2498 2499 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2500 data.dfs_event.freq); 2501 2502 switch (event_type) { 2503 case NL80211_RADAR_DETECTED: 2504 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2505 break; 2506 case NL80211_RADAR_CAC_FINISHED: 2507 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2508 break; 2509 case NL80211_RADAR_CAC_ABORTED: 2510 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2511 break; 2512 case NL80211_RADAR_NOP_FINISHED: 2513 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2514 break; 2515 default: 2516 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2517 "received", event_type); 2518 break; 2519 } 2520} 2521 2522 2523static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2524 int wds) 2525{ 2526 struct wpa_driver_nl80211_data *drv = bss->drv; 2527 union wpa_event_data event; 2528 2529 if (!tb[NL80211_ATTR_MAC]) 2530 return; 2531 2532 os_memset(&event, 0, sizeof(event)); 2533 event.rx_from_unknown.bssid = bss->addr; 2534 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2535 event.rx_from_unknown.wds = wds; 2536 2537 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2538} 2539 2540 2541static void do_process_drv_event(struct i802_bss *bss, int cmd, 2542 struct nlattr **tb) 2543{ 2544 struct wpa_driver_nl80211_data *drv = bss->drv; 2545 2546 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2547 cmd, nl80211_command_to_string(cmd), bss->ifname); 2548 2549 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2550 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2551 cmd == NL80211_CMD_SCAN_ABORTED)) { 2552 wpa_driver_nl80211_set_mode(&drv->first_bss, 2553 drv->ap_scan_as_station); 2554 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2555 } 2556 2557 switch (cmd) { 2558 case NL80211_CMD_TRIGGER_SCAN: 2559 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2560 break; 2561 case NL80211_CMD_START_SCHED_SCAN: 2562 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2563 break; 2564 case NL80211_CMD_SCHED_SCAN_STOPPED: 2565 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2566 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2567 break; 2568 case NL80211_CMD_NEW_SCAN_RESULTS: 2569 wpa_dbg(drv->ctx, MSG_DEBUG, 2570 "nl80211: New scan results available"); 2571 drv->scan_complete_events = 1; 2572 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2573 drv->ctx); 2574 send_scan_event(drv, 0, tb); 2575 break; 2576 case NL80211_CMD_SCHED_SCAN_RESULTS: 2577 wpa_dbg(drv->ctx, MSG_DEBUG, 2578 "nl80211: New sched scan results available"); 2579 send_scan_event(drv, 0, tb); 2580 break; 2581 case NL80211_CMD_SCAN_ABORTED: 2582 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2583 /* 2584 * Need to indicate that scan results are available in order 2585 * not to make wpa_supplicant stop its scanning. 2586 */ 2587 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2588 drv->ctx); 2589 send_scan_event(drv, 1, tb); 2590 break; 2591 case NL80211_CMD_AUTHENTICATE: 2592 case NL80211_CMD_ASSOCIATE: 2593 case NL80211_CMD_DEAUTHENTICATE: 2594 case NL80211_CMD_DISASSOCIATE: 2595 case NL80211_CMD_FRAME_TX_STATUS: 2596 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2597 case NL80211_CMD_UNPROT_DISASSOCIATE: 2598 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2599 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2600 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2601 tb[NL80211_ATTR_COOKIE], 2602 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2603 break; 2604 case NL80211_CMD_CONNECT: 2605 case NL80211_CMD_ROAM: 2606 mlme_event_connect(drv, cmd, 2607 tb[NL80211_ATTR_STATUS_CODE], 2608 tb[NL80211_ATTR_MAC], 2609 tb[NL80211_ATTR_REQ_IE], 2610 tb[NL80211_ATTR_RESP_IE]); 2611 break; 2612 case NL80211_CMD_CH_SWITCH_NOTIFY: 2613 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2614 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2615 break; 2616 case NL80211_CMD_DISCONNECT: 2617 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2618 tb[NL80211_ATTR_MAC], 2619 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2620 break; 2621 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2622 mlme_event_michael_mic_failure(bss, tb); 2623 break; 2624 case NL80211_CMD_JOIN_IBSS: 2625 mlme_event_join_ibss(drv, tb); 2626 break; 2627 case NL80211_CMD_REMAIN_ON_CHANNEL: 2628 mlme_event_remain_on_channel(drv, 0, tb); 2629 break; 2630 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2631 mlme_event_remain_on_channel(drv, 1, tb); 2632 break; 2633 case NL80211_CMD_NOTIFY_CQM: 2634 nl80211_cqm_event(drv, tb); 2635 break; 2636 case NL80211_CMD_REG_CHANGE: 2637 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2638 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2639 NULL); 2640 break; 2641 case NL80211_CMD_REG_BEACON_HINT: 2642 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2643 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2644 NULL); 2645 break; 2646 case NL80211_CMD_NEW_STATION: 2647 nl80211_new_station_event(drv, tb); 2648 break; 2649 case NL80211_CMD_DEL_STATION: 2650 nl80211_del_station_event(drv, tb); 2651 break; 2652 case NL80211_CMD_SET_REKEY_OFFLOAD: 2653 nl80211_rekey_offload_event(drv, tb); 2654 break; 2655 case NL80211_CMD_PMKSA_CANDIDATE: 2656 nl80211_pmksa_candidate_event(drv, tb); 2657 break; 2658 case NL80211_CMD_PROBE_CLIENT: 2659 nl80211_client_probe_event(drv, tb); 2660 break; 2661 case NL80211_CMD_TDLS_OPER: 2662 nl80211_tdls_oper_event(drv, tb); 2663 break; 2664 case NL80211_CMD_CONN_FAILED: 2665 nl80211_connect_failed_event(drv, tb); 2666 break; 2667 case NL80211_CMD_FT_EVENT: 2668 mlme_event_ft_event(drv, tb); 2669 break; 2670 case NL80211_CMD_RADAR_DETECT: 2671 nl80211_radar_event(drv, tb); 2672 break; 2673 default: 2674 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2675 "(cmd=%d)", cmd); 2676 break; 2677 } 2678} 2679 2680 2681static int process_drv_event(struct nl_msg *msg, void *arg) 2682{ 2683 struct wpa_driver_nl80211_data *drv = arg; 2684 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2685 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2686 struct i802_bss *bss; 2687 int ifidx = -1; 2688 2689 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2690 genlmsg_attrlen(gnlh, 0), NULL); 2691 2692 if (tb[NL80211_ATTR_IFINDEX]) { 2693 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2694 2695 for (bss = &drv->first_bss; bss; bss = bss->next) 2696 if (ifidx == -1 || ifidx == bss->ifindex) { 2697 do_process_drv_event(bss, gnlh->cmd, tb); 2698 return NL_SKIP; 2699 } 2700 wpa_printf(MSG_DEBUG, 2701 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2702 gnlh->cmd, ifidx); 2703 } else if (tb[NL80211_ATTR_WDEV]) { 2704 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2705 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2706 for (bss = &drv->first_bss; bss; bss = bss->next) { 2707 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2708 do_process_drv_event(bss, gnlh->cmd, tb); 2709 return NL_SKIP; 2710 } 2711 } 2712 wpa_printf(MSG_DEBUG, 2713 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2714 gnlh->cmd, (long long unsigned int) wdev_id); 2715 } 2716 2717 return NL_SKIP; 2718} 2719 2720 2721static int process_global_event(struct nl_msg *msg, void *arg) 2722{ 2723 struct nl80211_global *global = arg; 2724 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2725 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2726 struct wpa_driver_nl80211_data *drv, *tmp; 2727 int ifidx = -1; 2728 struct i802_bss *bss; 2729 u64 wdev_id = 0; 2730 int wdev_id_set = 0; 2731 2732 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2733 genlmsg_attrlen(gnlh, 0), NULL); 2734 2735 if (tb[NL80211_ATTR_IFINDEX]) 2736 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2737 else if (tb[NL80211_ATTR_WDEV]) { 2738 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2739 wdev_id_set = 1; 2740 } 2741 2742 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2743 struct wpa_driver_nl80211_data, list) { 2744 for (bss = &drv->first_bss; bss; bss = bss->next) { 2745 if ((ifidx == -1 && !wdev_id_set) || 2746 ifidx == bss->ifindex || 2747 (wdev_id_set && bss->wdev_id_set && 2748 wdev_id == bss->wdev_id)) { 2749 do_process_drv_event(bss, gnlh->cmd, tb); 2750 return NL_SKIP; 2751 } 2752 } 2753 } 2754 2755 return NL_SKIP; 2756} 2757 2758 2759static int process_bss_event(struct nl_msg *msg, void *arg) 2760{ 2761 struct i802_bss *bss = arg; 2762 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2763 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2764 2765 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2766 genlmsg_attrlen(gnlh, 0), NULL); 2767 2768 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2769 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2770 bss->ifname); 2771 2772 switch (gnlh->cmd) { 2773 case NL80211_CMD_FRAME: 2774 case NL80211_CMD_FRAME_TX_STATUS: 2775 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2776 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2777 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2778 tb[NL80211_ATTR_COOKIE], 2779 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2780 break; 2781 case NL80211_CMD_UNEXPECTED_FRAME: 2782 nl80211_spurious_frame(bss, tb, 0); 2783 break; 2784 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2785 nl80211_spurious_frame(bss, tb, 1); 2786 break; 2787 default: 2788 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2789 "(cmd=%d)", gnlh->cmd); 2790 break; 2791 } 2792 2793 return NL_SKIP; 2794} 2795 2796 2797static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2798 void *handle) 2799{ 2800 struct nl_cb *cb = eloop_ctx; 2801 2802 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2803 2804 nl_recvmsgs(handle, cb); 2805} 2806 2807 2808/** 2809 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2810 * @priv: driver_nl80211 private data 2811 * @alpha2_arg: country to which to switch to 2812 * Returns: 0 on success, -1 on failure 2813 * 2814 * This asks nl80211 to set the regulatory domain for given 2815 * country ISO / IEC alpha2. 2816 */ 2817static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2818{ 2819 struct i802_bss *bss = priv; 2820 struct wpa_driver_nl80211_data *drv = bss->drv; 2821 char alpha2[3]; 2822 struct nl_msg *msg; 2823 2824 msg = nlmsg_alloc(); 2825 if (!msg) 2826 return -ENOMEM; 2827 2828 alpha2[0] = alpha2_arg[0]; 2829 alpha2[1] = alpha2_arg[1]; 2830 alpha2[2] = '\0'; 2831 2832 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2833 2834 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2835 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2836 return -EINVAL; 2837 return 0; 2838nla_put_failure: 2839 nlmsg_free(msg); 2840 return -EINVAL; 2841} 2842 2843 2844static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2845{ 2846 u32 *feat = arg; 2847 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2848 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2849 2850 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2851 genlmsg_attrlen(gnlh, 0), NULL); 2852 2853 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2854 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2855 2856 return NL_SKIP; 2857} 2858 2859 2860static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2861{ 2862 u32 feat = 0; 2863 struct nl_msg *msg; 2864 2865 msg = nlmsg_alloc(); 2866 if (!msg) 2867 goto nla_put_failure; 2868 2869 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2870 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2871 return feat; 2872 2873 msg = NULL; 2874nla_put_failure: 2875 nlmsg_free(msg); 2876 return 0; 2877} 2878 2879 2880struct wiphy_info_data { 2881 struct wpa_driver_nl80211_data *drv; 2882 struct wpa_driver_capa *capa; 2883 2884 unsigned int error:1; 2885 unsigned int device_ap_sme:1; 2886 unsigned int poll_command_supported:1; 2887 unsigned int data_tx_status:1; 2888 unsigned int monitor_supported:1; 2889 unsigned int auth_supported:1; 2890 unsigned int connect_supported:1; 2891 unsigned int p2p_go_supported:1; 2892 unsigned int p2p_client_supported:1; 2893 unsigned int p2p_concurrent:1; 2894 unsigned int p2p_multichan_concurrent:1; 2895}; 2896 2897 2898static unsigned int probe_resp_offload_support(int supp_protocols) 2899{ 2900 unsigned int prot = 0; 2901 2902 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2903 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2904 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2905 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2906 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2907 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2908 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2909 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2910 2911 return prot; 2912} 2913 2914 2915static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2916 struct nlattr *tb) 2917{ 2918 struct nlattr *nl_mode; 2919 int i; 2920 2921 if (tb == NULL) 2922 return; 2923 2924 nla_for_each_nested(nl_mode, tb, i) { 2925 switch (nla_type(nl_mode)) { 2926 case NL80211_IFTYPE_AP: 2927 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2928 break; 2929 case NL80211_IFTYPE_ADHOC: 2930 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2931 break; 2932 case NL80211_IFTYPE_P2P_DEVICE: 2933 info->capa->flags |= 2934 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 2935 break; 2936 case NL80211_IFTYPE_P2P_GO: 2937 info->p2p_go_supported = 1; 2938 break; 2939 case NL80211_IFTYPE_P2P_CLIENT: 2940 info->p2p_client_supported = 1; 2941 break; 2942 case NL80211_IFTYPE_MONITOR: 2943 info->monitor_supported = 1; 2944 break; 2945 } 2946 } 2947} 2948 2949 2950static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2951 struct nlattr *nl_combi) 2952{ 2953 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2954 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2955 struct nlattr *nl_limit, *nl_mode; 2956 int err, rem_limit, rem_mode; 2957 int combination_has_p2p = 0, combination_has_mgd = 0; 2958 static struct nla_policy 2959 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2960 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2961 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2962 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2963 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2964 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 2965 }, 2966 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2967 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2968 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2969 }; 2970 2971 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2972 nl_combi, iface_combination_policy); 2973 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2974 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2975 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2976 return 0; /* broken combination */ 2977 2978 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 2979 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 2980 2981 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 2982 rem_limit) { 2983 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 2984 nl_limit, iface_limit_policy); 2985 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 2986 return 0; /* broken combination */ 2987 2988 nla_for_each_nested(nl_mode, 2989 tb_limit[NL80211_IFACE_LIMIT_TYPES], 2990 rem_mode) { 2991 int ift = nla_type(nl_mode); 2992 if (ift == NL80211_IFTYPE_P2P_GO || 2993 ift == NL80211_IFTYPE_P2P_CLIENT) 2994 combination_has_p2p = 1; 2995 if (ift == NL80211_IFTYPE_STATION) 2996 combination_has_mgd = 1; 2997 } 2998 if (combination_has_p2p && combination_has_mgd) 2999 break; 3000 } 3001 3002 if (combination_has_p2p && combination_has_mgd) { 3003 info->p2p_concurrent = 1; 3004 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1) 3005 info->p2p_multichan_concurrent = 1; 3006 return 1; 3007 } 3008 3009 return 0; 3010} 3011 3012 3013static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3014 struct nlattr *tb) 3015{ 3016 struct nlattr *nl_combi; 3017 int rem_combi; 3018 3019 if (tb == NULL) 3020 return; 3021 3022 nla_for_each_nested(nl_combi, tb, rem_combi) { 3023 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3024 break; 3025 } 3026} 3027 3028 3029static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3030 struct nlattr *tb) 3031{ 3032 struct nlattr *nl_cmd; 3033 int i; 3034 3035 if (tb == NULL) 3036 return; 3037 3038 nla_for_each_nested(nl_cmd, tb, i) { 3039 switch (nla_get_u32(nl_cmd)) { 3040 case NL80211_CMD_AUTHENTICATE: 3041 info->auth_supported = 1; 3042 break; 3043 case NL80211_CMD_CONNECT: 3044 info->connect_supported = 1; 3045 break; 3046 case NL80211_CMD_START_SCHED_SCAN: 3047 info->capa->sched_scan_supported = 1; 3048 break; 3049 case NL80211_CMD_PROBE_CLIENT: 3050 info->poll_command_supported = 1; 3051 break; 3052 } 3053 } 3054} 3055 3056 3057static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3058 struct nlattr *tb) 3059{ 3060 if (tb) 3061 capa->max_remain_on_chan = nla_get_u32(tb); 3062} 3063 3064 3065static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3066 struct nlattr *ext_setup) 3067{ 3068 if (tdls == NULL) 3069 return; 3070 3071 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3072 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3073 3074 if (ext_setup) { 3075 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3076 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3077 } 3078} 3079 3080 3081static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3082 struct nlattr *tb) 3083{ 3084 u32 flags; 3085 struct wpa_driver_capa *capa = info->capa; 3086 3087 if (tb == NULL) 3088 return; 3089 3090 flags = nla_get_u32(tb); 3091 3092 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3093 info->data_tx_status = 1; 3094 3095 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3096 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3097 3098 if (flags & NL80211_FEATURE_SAE) 3099 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3100 3101 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3102 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3103} 3104 3105 3106static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3107 struct nlattr *tb) 3108{ 3109 u32 protocols; 3110 3111 if (tb == NULL) 3112 return; 3113 3114 protocols = nla_get_u32(tb); 3115 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3116 "mode"); 3117 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3118 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3119} 3120 3121 3122static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3123{ 3124 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3125 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3126 struct wiphy_info_data *info = arg; 3127 struct wpa_driver_capa *capa = info->capa; 3128 struct wpa_driver_nl80211_data *drv = info->drv; 3129 3130 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3131 genlmsg_attrlen(gnlh, 0), NULL); 3132 3133 if (tb[NL80211_ATTR_WIPHY_NAME]) 3134 os_strncpy(drv->phyname, 3135 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3136 sizeof(drv->phyname)); 3137 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3138 capa->max_scan_ssids = 3139 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3140 3141 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3142 capa->max_sched_scan_ssids = 3143 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3144 3145 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3146 capa->max_match_sets = 3147 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3148 3149 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3150 capa->max_acl_mac_addrs = 3151 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3152 3153 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3154 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3155 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3156 3157 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3158 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3159 "off-channel TX"); 3160 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3161 } 3162 3163 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3164 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3165 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3166 } 3167 3168 wiphy_info_max_roc(capa, 3169 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3170 3171 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3172 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3173 3174 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3175 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3176 3177 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3178 info->device_ap_sme = 1; 3179 3180 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3181 wiphy_info_probe_resp_offload(capa, 3182 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3183 3184 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3185 drv->extended_capa == NULL) { 3186 drv->extended_capa = 3187 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3188 if (drv->extended_capa) { 3189 os_memcpy(drv->extended_capa, 3190 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3191 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3192 drv->extended_capa_len = 3193 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3194 } 3195 drv->extended_capa_mask = 3196 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3197 if (drv->extended_capa_mask) { 3198 os_memcpy(drv->extended_capa_mask, 3199 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3200 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3201 } else { 3202 os_free(drv->extended_capa); 3203 drv->extended_capa = NULL; 3204 drv->extended_capa_len = 0; 3205 } 3206 } 3207 3208 return NL_SKIP; 3209} 3210 3211 3212static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3213 struct wiphy_info_data *info) 3214{ 3215 u32 feat; 3216 struct nl_msg *msg; 3217 3218 os_memset(info, 0, sizeof(*info)); 3219 info->capa = &drv->capa; 3220 info->drv = drv; 3221 3222 msg = nlmsg_alloc(); 3223 if (!msg) 3224 return -1; 3225 3226 feat = get_nl80211_protocol_features(drv); 3227 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3228 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3229 else 3230 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3231 3232 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3233 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3234 goto nla_put_failure; 3235 3236 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3237 return -1; 3238 3239 if (info->auth_supported) 3240 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3241 else if (!info->connect_supported) { 3242 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3243 "authentication/association or connect commands"); 3244 info->error = 1; 3245 } 3246 3247 if (info->p2p_go_supported && info->p2p_client_supported) 3248 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3249 if (info->p2p_concurrent) { 3250 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3251 "interface (driver advertised support)"); 3252 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3253 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3254 } 3255 if (info->p2p_multichan_concurrent) { 3256 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3257 "concurrent (driver advertised support)"); 3258 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 3259 } 3260 3261 /* default to 5000 since early versions of mac80211 don't set it */ 3262 if (!drv->capa.max_remain_on_chan) 3263 drv->capa.max_remain_on_chan = 5000; 3264 3265 return 0; 3266nla_put_failure: 3267 nlmsg_free(msg); 3268 return -1; 3269} 3270 3271 3272static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3273{ 3274 struct wiphy_info_data info; 3275 if (wpa_driver_nl80211_get_info(drv, &info)) 3276 return -1; 3277 3278 if (info.error) 3279 return -1; 3280 3281 drv->has_capability = 1; 3282 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3283 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3284 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3285 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3286 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3287 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3288 WPA_DRIVER_CAPA_ENC_WEP104 | 3289 WPA_DRIVER_CAPA_ENC_TKIP | 3290 WPA_DRIVER_CAPA_ENC_CCMP; 3291 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3292 WPA_DRIVER_AUTH_SHARED | 3293 WPA_DRIVER_AUTH_LEAP; 3294 3295 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3296 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3297 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3298 3299 if (!info.device_ap_sme) { 3300 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3301 3302 /* 3303 * No AP SME is currently assumed to also indicate no AP MLME 3304 * in the driver/firmware. 3305 */ 3306 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3307 } 3308 3309 drv->device_ap_sme = info.device_ap_sme; 3310 drv->poll_command_supported = info.poll_command_supported; 3311 drv->data_tx_status = info.data_tx_status; 3312 3313#ifdef ANDROID_P2P 3314 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3315 /* Driver is new enough to support monitorless mode*/ 3316 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3317 "enough to support monitor-less mode"); 3318 drv->use_monitor = 0; 3319 } 3320#else 3321 /* 3322 * If poll command and tx status are supported, mac80211 is new enough 3323 * to have everything we need to not need monitor interfaces. 3324 */ 3325 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3326#endif 3327 3328 if (drv->device_ap_sme && drv->use_monitor) { 3329 /* 3330 * Non-mac80211 drivers may not support monitor interface. 3331 * Make sure we do not get stuck with incorrect capability here 3332 * by explicitly testing this. 3333 */ 3334 if (!info.monitor_supported) { 3335 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3336 "with device_ap_sme since no monitor mode " 3337 "support detected"); 3338 drv->use_monitor = 0; 3339 } 3340 } 3341 3342 /* 3343 * If we aren't going to use monitor interfaces, but the 3344 * driver doesn't support data TX status, we won't get TX 3345 * status for EAPOL frames. 3346 */ 3347 if (!drv->use_monitor && !info.data_tx_status) 3348 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3349 3350 return 0; 3351} 3352 3353 3354#ifdef ANDROID 3355static int android_genl_ctrl_resolve(struct nl_handle *handle, 3356 const char *name) 3357{ 3358 /* 3359 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3360 * need to work around that. 3361 */ 3362 struct nl_cache *cache = NULL; 3363 struct genl_family *nl80211 = NULL; 3364 int id = -1; 3365 3366 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3367 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3368 "netlink cache"); 3369 goto fail; 3370 } 3371 3372 nl80211 = genl_ctrl_search_by_name(cache, name); 3373 if (nl80211 == NULL) 3374 goto fail; 3375 3376 id = genl_family_get_id(nl80211); 3377 3378fail: 3379 if (nl80211) 3380 genl_family_put(nl80211); 3381 if (cache) 3382 nl_cache_free(cache); 3383 3384 return id; 3385} 3386#define genl_ctrl_resolve android_genl_ctrl_resolve 3387#endif /* ANDROID */ 3388 3389 3390static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3391{ 3392 int ret; 3393 3394 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3395 if (global->nl_cb == NULL) { 3396 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3397 "callbacks"); 3398 return -1; 3399 } 3400 3401 global->nl = nl_create_handle(global->nl_cb, "nl"); 3402 if (global->nl == NULL) 3403 goto err; 3404 3405 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3406 if (global->nl80211_id < 0) { 3407 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3408 "found"); 3409 goto err; 3410 } 3411 3412 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3413 if (global->nl_event == NULL) 3414 goto err; 3415 3416 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3417 if (ret >= 0) 3418 ret = nl_socket_add_membership(global->nl_event, ret); 3419 if (ret < 0) { 3420 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3421 "membership for scan events: %d (%s)", 3422 ret, strerror(-ret)); 3423 goto err; 3424 } 3425 3426 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3427 if (ret >= 0) 3428 ret = nl_socket_add_membership(global->nl_event, ret); 3429 if (ret < 0) { 3430 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3431 "membership for mlme events: %d (%s)", 3432 ret, strerror(-ret)); 3433 goto err; 3434 } 3435 3436 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3437 if (ret >= 0) 3438 ret = nl_socket_add_membership(global->nl_event, ret); 3439 if (ret < 0) { 3440 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3441 "membership for regulatory events: %d (%s)", 3442 ret, strerror(-ret)); 3443 /* Continue without regulatory events */ 3444 } 3445 3446 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3447 no_seq_check, NULL); 3448 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3449 process_global_event, global); 3450 3451 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3452 wpa_driver_nl80211_event_receive, 3453 global->nl_cb, global->nl_event); 3454 3455 return 0; 3456 3457err: 3458 nl_destroy_handles(&global->nl_event); 3459 nl_destroy_handles(&global->nl); 3460 nl_cb_put(global->nl_cb); 3461 global->nl_cb = NULL; 3462 return -1; 3463} 3464 3465 3466static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3467{ 3468 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3469 if (!drv->nl_cb) { 3470 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3471 return -1; 3472 } 3473 3474 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3475 no_seq_check, NULL); 3476 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3477 process_drv_event, drv); 3478 3479 return 0; 3480} 3481 3482 3483static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3484{ 3485 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3486 /* 3487 * This may be for any interface; use ifdown event to disable 3488 * interface. 3489 */ 3490} 3491 3492 3493static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3494{ 3495 struct wpa_driver_nl80211_data *drv = ctx; 3496 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3497 if (linux_set_iface_flags(drv->global->ioctl_sock, 3498 drv->first_bss.ifname, 1)) { 3499 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3500 "after rfkill unblock"); 3501 return; 3502 } 3503 /* rtnetlink ifup handler will report interface as enabled */ 3504} 3505 3506 3507static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3508 void *eloop_ctx, 3509 void *handle) 3510{ 3511 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3512 u8 data[2048]; 3513 struct msghdr msg; 3514 struct iovec entry; 3515 u8 control[512]; 3516 struct cmsghdr *cmsg; 3517 int res, found_ee = 0, found_wifi = 0, acked = 0; 3518 union wpa_event_data event; 3519 3520 memset(&msg, 0, sizeof(msg)); 3521 msg.msg_iov = &entry; 3522 msg.msg_iovlen = 1; 3523 entry.iov_base = data; 3524 entry.iov_len = sizeof(data); 3525 msg.msg_control = &control; 3526 msg.msg_controllen = sizeof(control); 3527 3528 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3529 /* if error or not fitting 802.3 header, return */ 3530 if (res < 14) 3531 return; 3532 3533 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3534 { 3535 if (cmsg->cmsg_level == SOL_SOCKET && 3536 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3537 int *ack; 3538 3539 found_wifi = 1; 3540 ack = (void *)CMSG_DATA(cmsg); 3541 acked = *ack; 3542 } 3543 3544 if (cmsg->cmsg_level == SOL_PACKET && 3545 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3546 struct sock_extended_err *err = 3547 (struct sock_extended_err *)CMSG_DATA(cmsg); 3548 3549 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3550 found_ee = 1; 3551 } 3552 } 3553 3554 if (!found_ee || !found_wifi) 3555 return; 3556 3557 memset(&event, 0, sizeof(event)); 3558 event.eapol_tx_status.dst = data; 3559 event.eapol_tx_status.data = data + 14; 3560 event.eapol_tx_status.data_len = res - 14; 3561 event.eapol_tx_status.ack = acked; 3562 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3563} 3564 3565 3566static int nl80211_init_bss(struct i802_bss *bss) 3567{ 3568 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3569 if (!bss->nl_cb) 3570 return -1; 3571 3572 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3573 no_seq_check, NULL); 3574 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3575 process_bss_event, bss); 3576 3577 return 0; 3578} 3579 3580 3581static void nl80211_destroy_bss(struct i802_bss *bss) 3582{ 3583 nl_cb_put(bss->nl_cb); 3584 bss->nl_cb = NULL; 3585} 3586 3587 3588/** 3589 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3590 * @ctx: context to be used when calling wpa_supplicant functions, 3591 * e.g., wpa_supplicant_event() 3592 * @ifname: interface name, e.g., wlan0 3593 * @global_priv: private driver global data from global_init() 3594 * Returns: Pointer to private data, %NULL on failure 3595 */ 3596static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3597 void *global_priv) 3598{ 3599 struct wpa_driver_nl80211_data *drv; 3600 struct rfkill_config *rcfg; 3601 struct i802_bss *bss; 3602 3603 if (global_priv == NULL) 3604 return NULL; 3605 drv = os_zalloc(sizeof(*drv)); 3606 if (drv == NULL) 3607 return NULL; 3608 drv->global = global_priv; 3609 drv->ctx = ctx; 3610 bss = &drv->first_bss; 3611 bss->drv = drv; 3612 bss->ctx = ctx; 3613 3614 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3615 drv->monitor_ifidx = -1; 3616 drv->monitor_sock = -1; 3617 drv->eapol_tx_sock = -1; 3618 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3619 3620 if (wpa_driver_nl80211_init_nl(drv)) { 3621 os_free(drv); 3622 return NULL; 3623 } 3624 3625 if (nl80211_init_bss(bss)) 3626 goto failed; 3627 3628 rcfg = os_zalloc(sizeof(*rcfg)); 3629 if (rcfg == NULL) 3630 goto failed; 3631 rcfg->ctx = drv; 3632 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3633 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3634 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3635 drv->rfkill = rfkill_init(rcfg); 3636 if (drv->rfkill == NULL) { 3637 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3638 os_free(rcfg); 3639 } 3640 3641 if (wpa_driver_nl80211_finish_drv_init(drv)) 3642 goto failed; 3643 3644 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3645 if (drv->eapol_tx_sock < 0) 3646 goto failed; 3647 3648 if (drv->data_tx_status) { 3649 int enabled = 1; 3650 3651 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3652 &enabled, sizeof(enabled)) < 0) { 3653 wpa_printf(MSG_DEBUG, 3654 "nl80211: wifi status sockopt failed\n"); 3655 drv->data_tx_status = 0; 3656 if (!drv->use_monitor) 3657 drv->capa.flags &= 3658 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3659 } else { 3660 eloop_register_read_sock(drv->eapol_tx_sock, 3661 wpa_driver_nl80211_handle_eapol_tx_status, 3662 drv, NULL); 3663 } 3664 } 3665 3666 if (drv->global) { 3667 dl_list_add(&drv->global->interfaces, &drv->list); 3668 drv->in_interface_list = 1; 3669 } 3670 3671 return bss; 3672 3673failed: 3674 wpa_driver_nl80211_deinit(bss); 3675 return NULL; 3676} 3677 3678 3679static int nl80211_register_frame(struct i802_bss *bss, 3680 struct nl_handle *nl_handle, 3681 u16 type, const u8 *match, size_t match_len) 3682{ 3683 struct wpa_driver_nl80211_data *drv = bss->drv; 3684 struct nl_msg *msg; 3685 int ret = -1; 3686 3687 msg = nlmsg_alloc(); 3688 if (!msg) 3689 return -1; 3690 3691 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3692 type, nl_handle); 3693 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3694 match, match_len); 3695 3696 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3697 3698 if (nl80211_set_iface_id(msg, bss) < 0) 3699 goto nla_put_failure; 3700 3701 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3702 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3703 3704 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3705 msg = NULL; 3706 if (ret) { 3707 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3708 "failed (type=%u): ret=%d (%s)", 3709 type, ret, strerror(-ret)); 3710 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3711 match, match_len); 3712 goto nla_put_failure; 3713 } 3714 ret = 0; 3715nla_put_failure: 3716 nlmsg_free(msg); 3717 return ret; 3718} 3719 3720 3721static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3722{ 3723 struct wpa_driver_nl80211_data *drv = bss->drv; 3724 3725 if (bss->nl_mgmt) { 3726 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3727 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3728 return -1; 3729 } 3730 3731 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3732 if (bss->nl_mgmt == NULL) 3733 return -1; 3734 3735 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3736 wpa_driver_nl80211_event_receive, bss->nl_cb, 3737 bss->nl_mgmt); 3738 3739 return 0; 3740} 3741 3742 3743static int nl80211_register_action_frame(struct i802_bss *bss, 3744 const u8 *match, size_t match_len) 3745{ 3746 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3747 return nl80211_register_frame(bss, bss->nl_mgmt, 3748 type, match, match_len); 3749} 3750 3751 3752static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3753{ 3754 struct wpa_driver_nl80211_data *drv = bss->drv; 3755 3756 if (nl80211_alloc_mgmt_handle(bss)) 3757 return -1; 3758 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3759 "handle %p", bss->nl_mgmt); 3760 3761#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3762 /* GAS Initial Request */ 3763 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3764 return -1; 3765 /* GAS Initial Response */ 3766 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3767 return -1; 3768 /* GAS Comeback Request */ 3769 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3770 return -1; 3771 /* GAS Comeback Response */ 3772 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3773 return -1; 3774#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3775#ifdef CONFIG_P2P 3776 /* P2P Public Action */ 3777 if (nl80211_register_action_frame(bss, 3778 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3779 6) < 0) 3780 return -1; 3781 /* P2P Action */ 3782 if (nl80211_register_action_frame(bss, 3783 (u8 *) "\x7f\x50\x6f\x9a\x09", 3784 5) < 0) 3785 return -1; 3786#endif /* CONFIG_P2P */ 3787#ifdef CONFIG_IEEE80211W 3788 /* SA Query Response */ 3789 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3790 return -1; 3791#endif /* CONFIG_IEEE80211W */ 3792#ifdef CONFIG_TDLS 3793 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3794 /* TDLS Discovery Response */ 3795 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3796 0) 3797 return -1; 3798 } 3799#endif /* CONFIG_TDLS */ 3800 3801 /* FT Action frames */ 3802 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3803 return -1; 3804 else 3805 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3806 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3807 3808 /* WNM - BSS Transition Management Request */ 3809 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3810 return -1; 3811 /* WNM-Sleep Mode Response */ 3812 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3813 return -1; 3814 3815 return 0; 3816} 3817 3818 3819static int nl80211_register_spurious_class3(struct i802_bss *bss) 3820{ 3821 struct wpa_driver_nl80211_data *drv = bss->drv; 3822 struct nl_msg *msg; 3823 int ret = -1; 3824 3825 msg = nlmsg_alloc(); 3826 if (!msg) 3827 return -1; 3828 3829 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3830 3831 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3832 3833 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3834 msg = NULL; 3835 if (ret) { 3836 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3837 "failed: ret=%d (%s)", 3838 ret, strerror(-ret)); 3839 goto nla_put_failure; 3840 } 3841 ret = 0; 3842nla_put_failure: 3843 nlmsg_free(msg); 3844 return ret; 3845} 3846 3847 3848static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3849{ 3850 static const int stypes[] = { 3851 WLAN_FC_STYPE_AUTH, 3852 WLAN_FC_STYPE_ASSOC_REQ, 3853 WLAN_FC_STYPE_REASSOC_REQ, 3854 WLAN_FC_STYPE_DISASSOC, 3855 WLAN_FC_STYPE_DEAUTH, 3856 WLAN_FC_STYPE_ACTION, 3857 WLAN_FC_STYPE_PROBE_REQ, 3858/* Beacon doesn't work as mac80211 doesn't currently allow 3859 * it, but it wouldn't really be the right thing anyway as 3860 * it isn't per interface ... maybe just dump the scan 3861 * results periodically for OLBC? 3862 */ 3863// WLAN_FC_STYPE_BEACON, 3864 }; 3865 unsigned int i; 3866 3867 if (nl80211_alloc_mgmt_handle(bss)) 3868 return -1; 3869 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3870 "handle %p", bss->nl_mgmt); 3871 3872 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3873 if (nl80211_register_frame(bss, bss->nl_mgmt, 3874 (WLAN_FC_TYPE_MGMT << 2) | 3875 (stypes[i] << 4), 3876 NULL, 0) < 0) { 3877 goto out_err; 3878 } 3879 } 3880 3881 if (nl80211_register_spurious_class3(bss)) 3882 goto out_err; 3883 3884 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3885 goto out_err; 3886 3887 return 0; 3888 3889out_err: 3890 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3891 nl_destroy_handles(&bss->nl_mgmt); 3892 return -1; 3893} 3894 3895 3896static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3897{ 3898 if (nl80211_alloc_mgmt_handle(bss)) 3899 return -1; 3900 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3901 "handle %p (device SME)", bss->nl_mgmt); 3902 3903 if (nl80211_register_frame(bss, bss->nl_mgmt, 3904 (WLAN_FC_TYPE_MGMT << 2) | 3905 (WLAN_FC_STYPE_ACTION << 4), 3906 NULL, 0) < 0) 3907 goto out_err; 3908 3909 return 0; 3910 3911out_err: 3912 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3913 nl_destroy_handles(&bss->nl_mgmt); 3914 return -1; 3915} 3916 3917 3918static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3919{ 3920 if (bss->nl_mgmt == NULL) 3921 return; 3922 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3923 "(%s)", bss->nl_mgmt, reason); 3924 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3925 nl_destroy_handles(&bss->nl_mgmt); 3926 3927 nl80211_put_wiphy_data_ap(bss); 3928} 3929 3930 3931static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3932{ 3933 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3934} 3935 3936 3937static void nl80211_del_p2pdev(struct i802_bss *bss) 3938{ 3939 struct wpa_driver_nl80211_data *drv = bss->drv; 3940 struct nl_msg *msg; 3941 int ret; 3942 3943 msg = nlmsg_alloc(); 3944 if (!msg) 3945 return; 3946 3947 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 3948 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3949 3950 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3951 msg = NULL; 3952 3953 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 3954 bss->ifname, (long long unsigned int) bss->wdev_id, 3955 strerror(ret)); 3956 3957nla_put_failure: 3958 nlmsg_free(msg); 3959} 3960 3961 3962static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 3963{ 3964 struct wpa_driver_nl80211_data *drv = bss->drv; 3965 struct nl_msg *msg; 3966 int ret = -1; 3967 3968 msg = nlmsg_alloc(); 3969 if (!msg) 3970 return -1; 3971 3972 if (start) 3973 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 3974 else 3975 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 3976 3977 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3978 3979 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3980 msg = NULL; 3981 3982 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 3983 start ? "Start" : "Stop", 3984 bss->ifname, (long long unsigned int) bss->wdev_id, 3985 strerror(ret)); 3986 3987nla_put_failure: 3988 nlmsg_free(msg); 3989 return ret; 3990} 3991 3992 3993static int i802_set_iface_flags(struct i802_bss *bss, int up) 3994{ 3995 enum nl80211_iftype nlmode; 3996 3997 nlmode = nl80211_get_ifmode(bss); 3998 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 3999 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4000 bss->ifname, up); 4001 } 4002 4003 /* P2P Device has start/stop which is equivalent */ 4004 return nl80211_set_p2pdev(bss, up); 4005} 4006 4007 4008static int 4009wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4010{ 4011#ifndef HOSTAPD 4012 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4013#endif /* HOSTAPD */ 4014 struct i802_bss *bss = &drv->first_bss; 4015 int send_rfkill_event = 0; 4016 int dynamic_if; 4017 4018 drv->ifindex = if_nametoindex(bss->ifname); 4019 bss->ifindex = drv->ifindex; 4020 bss->wdev_id = drv->global->if_add_wdevid; 4021 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4022 4023 dynamic_if = drv->ifindex == drv->global->if_add_ifindex; 4024 dynamic_if = dynamic_if || drv->global->if_add_wdevid_set; 4025 drv->global->if_add_wdevid_set = 0; 4026 4027 if (wpa_driver_nl80211_capa(drv)) 4028 return -1; 4029 4030 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4031 bss->ifname, drv->phyname); 4032 4033#ifndef HOSTAPD 4034 if (dynamic_if) 4035 nlmode = nl80211_get_ifmode(bss); 4036 4037 /* 4038 * Make sure the interface starts up in station mode unless this is a 4039 * dynamically added interface (e.g., P2P) that was already configured 4040 * with proper iftype. 4041 */ 4042 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4043 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4044 return -1; 4045 } 4046 drv->nlmode = nlmode; 4047 4048 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4049 int ret = nl80211_set_p2pdev(bss, 1); 4050 if (ret < 0) 4051 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4052 nl80211_get_macaddr(bss); 4053 return ret; 4054 } 4055 4056 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4057 if (rfkill_is_blocked(drv->rfkill)) { 4058 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4059 "interface '%s' due to rfkill", 4060 bss->ifname); 4061 drv->if_disabled = 1; 4062 send_rfkill_event = 1; 4063 } else { 4064 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4065 "interface '%s' UP", bss->ifname); 4066 return -1; 4067 } 4068 } 4069 4070 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4071 1, IF_OPER_DORMANT); 4072#endif /* HOSTAPD */ 4073 4074 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4075 bss->addr)) 4076 return -1; 4077 4078 if (send_rfkill_event) { 4079 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4080 drv, drv->ctx); 4081 } 4082 4083 return 0; 4084} 4085 4086 4087static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4088{ 4089 struct nl_msg *msg; 4090 4091 msg = nlmsg_alloc(); 4092 if (!msg) 4093 return -ENOMEM; 4094 4095 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4096 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4097 4098 return send_and_recv_msgs(drv, msg, NULL, NULL); 4099 nla_put_failure: 4100 nlmsg_free(msg); 4101 return -ENOBUFS; 4102} 4103 4104 4105/** 4106 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4107 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4108 * 4109 * Shut down driver interface and processing of driver events. Free 4110 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4111 */ 4112static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4113{ 4114 struct wpa_driver_nl80211_data *drv = bss->drv; 4115 4116 bss->in_deinit = 1; 4117 if (drv->data_tx_status) 4118 eloop_unregister_read_sock(drv->eapol_tx_sock); 4119 if (drv->eapol_tx_sock >= 0) 4120 close(drv->eapol_tx_sock); 4121 4122 if (bss->nl_preq) 4123 wpa_driver_nl80211_probe_req_report(bss, 0); 4124 if (bss->added_if_into_bridge) { 4125 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4126 bss->ifname) < 0) 4127 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4128 "interface %s from bridge %s: %s", 4129 bss->ifname, bss->brname, strerror(errno)); 4130 } 4131 if (bss->added_bridge) { 4132 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4133 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4134 "bridge %s: %s", 4135 bss->brname, strerror(errno)); 4136 } 4137 4138 nl80211_remove_monitor_interface(drv); 4139 4140 if (is_ap_interface(drv->nlmode)) 4141 wpa_driver_nl80211_del_beacon(drv); 4142 4143#ifdef HOSTAPD 4144 if (drv->last_freq_ht) { 4145 /* Clear HT flags from the driver */ 4146 struct hostapd_freq_params freq; 4147 os_memset(&freq, 0, sizeof(freq)); 4148 freq.freq = drv->last_freq; 4149 wpa_driver_nl80211_set_freq(bss, &freq); 4150 } 4151 4152 if (drv->eapol_sock >= 0) { 4153 eloop_unregister_read_sock(drv->eapol_sock); 4154 close(drv->eapol_sock); 4155 } 4156 4157 if (drv->if_indices != drv->default_if_indices) 4158 os_free(drv->if_indices); 4159#endif /* HOSTAPD */ 4160 4161 if (drv->disabled_11b_rates) 4162 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4163 4164 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4165 IF_OPER_UP); 4166 rfkill_deinit(drv->rfkill); 4167 4168 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4169 4170 (void) i802_set_iface_flags(bss, 0); 4171 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4172 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4173 } else { 4174 nl80211_mgmt_unsubscribe(bss, "deinit"); 4175 nl80211_del_p2pdev(bss); 4176 } 4177 nl_cb_put(drv->nl_cb); 4178 4179 nl80211_destroy_bss(&drv->first_bss); 4180 4181 os_free(drv->filter_ssids); 4182 4183 os_free(drv->auth_ie); 4184 4185 if (drv->in_interface_list) 4186 dl_list_del(&drv->list); 4187 4188 os_free(drv->extended_capa); 4189 os_free(drv->extended_capa_mask); 4190 os_free(drv); 4191} 4192 4193 4194/** 4195 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4196 * @eloop_ctx: Driver private data 4197 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4198 * 4199 * This function can be used as registered timeout when starting a scan to 4200 * generate a scan completed event if the driver does not report this. 4201 */ 4202static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4203{ 4204 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4205 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4206 wpa_driver_nl80211_set_mode(&drv->first_bss, 4207 drv->ap_scan_as_station); 4208 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4209 } 4210 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4211 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4212} 4213 4214 4215static struct nl_msg * 4216nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4217 struct wpa_driver_scan_params *params, u64 *wdev_id) 4218{ 4219 struct nl_msg *msg; 4220 size_t i; 4221 4222 msg = nlmsg_alloc(); 4223 if (!msg) 4224 return NULL; 4225 4226 nl80211_cmd(drv, msg, 0, cmd); 4227 4228 if (!wdev_id) 4229 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4230 else 4231 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4232 4233 if (params->num_ssids) { 4234 struct nlattr *ssids; 4235 4236 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4237 if (ssids == NULL) 4238 goto fail; 4239 for (i = 0; i < params->num_ssids; i++) { 4240 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4241 params->ssids[i].ssid, 4242 params->ssids[i].ssid_len); 4243 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4244 params->ssids[i].ssid) < 0) 4245 goto fail; 4246 } 4247 nla_nest_end(msg, ssids); 4248 } 4249 4250 if (params->extra_ies) { 4251 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4252 params->extra_ies, params->extra_ies_len); 4253 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4254 params->extra_ies) < 0) 4255 goto fail; 4256 } 4257 4258 if (params->freqs) { 4259 struct nlattr *freqs; 4260 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4261 if (freqs == NULL) 4262 goto fail; 4263 for (i = 0; params->freqs[i]; i++) { 4264 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4265 "MHz", params->freqs[i]); 4266 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4267 goto fail; 4268 } 4269 nla_nest_end(msg, freqs); 4270 } 4271 4272 os_free(drv->filter_ssids); 4273 drv->filter_ssids = params->filter_ssids; 4274 params->filter_ssids = NULL; 4275 drv->num_filter_ssids = params->num_filter_ssids; 4276 4277 return msg; 4278 4279fail: 4280nla_put_failure: 4281 nlmsg_free(msg); 4282 return NULL; 4283} 4284 4285 4286/** 4287 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4288 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4289 * @params: Scan parameters 4290 * Returns: 0 on success, -1 on failure 4291 */ 4292static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4293 struct wpa_driver_scan_params *params) 4294{ 4295 struct wpa_driver_nl80211_data *drv = bss->drv; 4296 int ret = -1, timeout; 4297 struct nl_msg *msg = NULL; 4298 4299 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4300 drv->scan_for_auth = 0; 4301 4302 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4303 bss->wdev_id_set ? &bss->wdev_id : NULL); 4304 if (!msg) 4305 return -1; 4306 4307 if (params->p2p_probe) { 4308 struct nlattr *rates; 4309 4310 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4311 4312 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4313 if (rates == NULL) 4314 goto nla_put_failure; 4315 4316 /* 4317 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4318 * by masking out everything else apart from the OFDM rates 6, 4319 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4320 * rates are left enabled. 4321 */ 4322 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4323 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4324 nla_nest_end(msg, rates); 4325 4326 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4327 } 4328 4329 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4330 msg = NULL; 4331 if (ret) { 4332 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4333 "(%s)", ret, strerror(-ret)); 4334#ifdef HOSTAPD 4335 if (is_ap_interface(drv->nlmode)) { 4336 /* 4337 * mac80211 does not allow scan requests in AP mode, so 4338 * try to do this in station mode. 4339 */ 4340 if (wpa_driver_nl80211_set_mode( 4341 bss, NL80211_IFTYPE_STATION)) 4342 goto nla_put_failure; 4343 4344 if (wpa_driver_nl80211_scan(bss, params)) { 4345 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4346 goto nla_put_failure; 4347 } 4348 4349 /* Restore AP mode when processing scan results */ 4350 drv->ap_scan_as_station = drv->nlmode; 4351 ret = 0; 4352 } else 4353 goto nla_put_failure; 4354#else /* HOSTAPD */ 4355 goto nla_put_failure; 4356#endif /* HOSTAPD */ 4357 } 4358 4359 /* Not all drivers generate "scan completed" wireless event, so try to 4360 * read results after a timeout. */ 4361 timeout = 10; 4362 if (drv->scan_complete_events) { 4363 /* 4364 * The driver seems to deliver events to notify when scan is 4365 * complete, so use longer timeout to avoid race conditions 4366 * with scanning and following association request. 4367 */ 4368 timeout = 30; 4369 } 4370 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4371 "seconds", ret, timeout); 4372 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4373 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4374 drv, drv->ctx); 4375 4376nla_put_failure: 4377 nlmsg_free(msg); 4378 return ret; 4379} 4380 4381 4382/** 4383 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4384 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4385 * @params: Scan parameters 4386 * @interval: Interval between scan cycles in milliseconds 4387 * Returns: 0 on success, -1 on failure or if not supported 4388 */ 4389static int wpa_driver_nl80211_sched_scan(void *priv, 4390 struct wpa_driver_scan_params *params, 4391 u32 interval) 4392{ 4393 struct i802_bss *bss = priv; 4394 struct wpa_driver_nl80211_data *drv = bss->drv; 4395 int ret = -1; 4396 struct nl_msg *msg; 4397 size_t i; 4398 4399 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4400 4401#ifdef ANDROID 4402 if (!drv->capa.sched_scan_supported) 4403 return android_pno_start(bss, params); 4404#endif /* ANDROID */ 4405 4406 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4407 bss->wdev_id_set ? &bss->wdev_id : NULL); 4408 if (!msg) 4409 goto nla_put_failure; 4410 4411 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4412 4413 if ((drv->num_filter_ssids && 4414 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4415 params->filter_rssi) { 4416 struct nlattr *match_sets; 4417 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4418 if (match_sets == NULL) 4419 goto nla_put_failure; 4420 4421 for (i = 0; i < drv->num_filter_ssids; i++) { 4422 struct nlattr *match_set_ssid; 4423 wpa_hexdump_ascii(MSG_MSGDUMP, 4424 "nl80211: Sched scan filter SSID", 4425 drv->filter_ssids[i].ssid, 4426 drv->filter_ssids[i].ssid_len); 4427 4428 match_set_ssid = nla_nest_start(msg, i + 1); 4429 if (match_set_ssid == NULL) 4430 goto nla_put_failure; 4431 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4432 drv->filter_ssids[i].ssid_len, 4433 drv->filter_ssids[i].ssid); 4434 4435 nla_nest_end(msg, match_set_ssid); 4436 } 4437 4438 if (params->filter_rssi) { 4439 struct nlattr *match_set_rssi; 4440 match_set_rssi = nla_nest_start(msg, 0); 4441 if (match_set_rssi == NULL) 4442 goto nla_put_failure; 4443 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4444 params->filter_rssi); 4445 wpa_printf(MSG_MSGDUMP, 4446 "nl80211: Sched scan RSSI filter %d dBm", 4447 params->filter_rssi); 4448 nla_nest_end(msg, match_set_rssi); 4449 } 4450 4451 nla_nest_end(msg, match_sets); 4452 } 4453 4454 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4455 4456 /* TODO: if we get an error here, we should fall back to normal scan */ 4457 4458 msg = NULL; 4459 if (ret) { 4460 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4461 "ret=%d (%s)", ret, strerror(-ret)); 4462 goto nla_put_failure; 4463 } 4464 4465 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4466 "scan interval %d msec", ret, interval); 4467 4468nla_put_failure: 4469 nlmsg_free(msg); 4470 return ret; 4471} 4472 4473 4474/** 4475 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4476 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4477 * Returns: 0 on success, -1 on failure or if not supported 4478 */ 4479static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4480{ 4481 struct i802_bss *bss = priv; 4482 struct wpa_driver_nl80211_data *drv = bss->drv; 4483 int ret = 0; 4484 struct nl_msg *msg; 4485 4486#ifdef ANDROID 4487 if (!drv->capa.sched_scan_supported) 4488 return android_pno_stop(bss); 4489#endif /* ANDROID */ 4490 4491 msg = nlmsg_alloc(); 4492 if (!msg) 4493 return -1; 4494 4495 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4496 4497 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4498 4499 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4500 msg = NULL; 4501 if (ret) { 4502 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4503 "ret=%d (%s)", ret, strerror(-ret)); 4504 goto nla_put_failure; 4505 } 4506 4507 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4508 4509nla_put_failure: 4510 nlmsg_free(msg); 4511 return ret; 4512} 4513 4514 4515static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4516{ 4517 const u8 *end, *pos; 4518 4519 if (ies == NULL) 4520 return NULL; 4521 4522 pos = ies; 4523 end = ies + ies_len; 4524 4525 while (pos + 1 < end) { 4526 if (pos + 2 + pos[1] > end) 4527 break; 4528 if (pos[0] == ie) 4529 return pos; 4530 pos += 2 + pos[1]; 4531 } 4532 4533 return NULL; 4534} 4535 4536 4537static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4538 const u8 *ie, size_t ie_len) 4539{ 4540 const u8 *ssid; 4541 size_t i; 4542 4543 if (drv->filter_ssids == NULL) 4544 return 0; 4545 4546 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4547 if (ssid == NULL) 4548 return 1; 4549 4550 for (i = 0; i < drv->num_filter_ssids; i++) { 4551 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4552 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4553 0) 4554 return 0; 4555 } 4556 4557 return 1; 4558} 4559 4560 4561static int bss_info_handler(struct nl_msg *msg, void *arg) 4562{ 4563 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4564 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4565 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4566 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4567 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4568 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4569 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4570 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4571 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4572 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4573 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4574 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4575 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4576 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4577 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4578 }; 4579 struct nl80211_bss_info_arg *_arg = arg; 4580 struct wpa_scan_results *res = _arg->res; 4581 struct wpa_scan_res **tmp; 4582 struct wpa_scan_res *r; 4583 const u8 *ie, *beacon_ie; 4584 size_t ie_len, beacon_ie_len; 4585 u8 *pos; 4586 size_t i; 4587 4588 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4589 genlmsg_attrlen(gnlh, 0), NULL); 4590 if (!tb[NL80211_ATTR_BSS]) 4591 return NL_SKIP; 4592 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4593 bss_policy)) 4594 return NL_SKIP; 4595 if (bss[NL80211_BSS_STATUS]) { 4596 enum nl80211_bss_status status; 4597 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4598 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4599 bss[NL80211_BSS_FREQUENCY]) { 4600 _arg->assoc_freq = 4601 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4602 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4603 _arg->assoc_freq); 4604 } 4605 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4606 bss[NL80211_BSS_BSSID]) { 4607 os_memcpy(_arg->assoc_bssid, 4608 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4609 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4610 MACSTR, MAC2STR(_arg->assoc_bssid)); 4611 } 4612 } 4613 if (!res) 4614 return NL_SKIP; 4615 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4616 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4617 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4618 } else { 4619 ie = NULL; 4620 ie_len = 0; 4621 } 4622 if (bss[NL80211_BSS_BEACON_IES]) { 4623 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4624 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4625 } else { 4626 beacon_ie = NULL; 4627 beacon_ie_len = 0; 4628 } 4629 4630 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4631 ie ? ie_len : beacon_ie_len)) 4632 return NL_SKIP; 4633 4634 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4635 if (r == NULL) 4636 return NL_SKIP; 4637 if (bss[NL80211_BSS_BSSID]) 4638 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4639 ETH_ALEN); 4640 if (bss[NL80211_BSS_FREQUENCY]) 4641 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4642 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4643 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4644 if (bss[NL80211_BSS_CAPABILITY]) 4645 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4646 r->flags |= WPA_SCAN_NOISE_INVALID; 4647 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4648 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4649 r->level /= 100; /* mBm to dBm */ 4650 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4651 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4652 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4653 r->flags |= WPA_SCAN_QUAL_INVALID; 4654 } else 4655 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4656 if (bss[NL80211_BSS_TSF]) 4657 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4658 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4659 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4660 r->ie_len = ie_len; 4661 pos = (u8 *) (r + 1); 4662 if (ie) { 4663 os_memcpy(pos, ie, ie_len); 4664 pos += ie_len; 4665 } 4666 r->beacon_ie_len = beacon_ie_len; 4667 if (beacon_ie) 4668 os_memcpy(pos, beacon_ie, beacon_ie_len); 4669 4670 if (bss[NL80211_BSS_STATUS]) { 4671 enum nl80211_bss_status status; 4672 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4673 switch (status) { 4674 case NL80211_BSS_STATUS_AUTHENTICATED: 4675 r->flags |= WPA_SCAN_AUTHENTICATED; 4676 break; 4677 case NL80211_BSS_STATUS_ASSOCIATED: 4678 r->flags |= WPA_SCAN_ASSOCIATED; 4679 break; 4680 default: 4681 break; 4682 } 4683 } 4684 4685 /* 4686 * cfg80211 maintains separate BSS table entries for APs if the same 4687 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4688 * not use frequency as a separate key in the BSS table, so filter out 4689 * duplicated entries. Prefer associated BSS entry in such a case in 4690 * order to get the correct frequency into the BSS table. 4691 */ 4692 for (i = 0; i < res->num; i++) { 4693 const u8 *s1, *s2; 4694 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4695 continue; 4696 4697 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4698 res->res[i]->ie_len, WLAN_EID_SSID); 4699 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4700 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4701 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4702 continue; 4703 4704 /* Same BSSID,SSID was already included in scan results */ 4705 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4706 "for " MACSTR, MAC2STR(r->bssid)); 4707 4708 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4709 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4710 os_free(res->res[i]); 4711 res->res[i] = r; 4712 } else 4713 os_free(r); 4714 return NL_SKIP; 4715 } 4716 4717 tmp = os_realloc_array(res->res, res->num + 1, 4718 sizeof(struct wpa_scan_res *)); 4719 if (tmp == NULL) { 4720 os_free(r); 4721 return NL_SKIP; 4722 } 4723 tmp[res->num++] = r; 4724 res->res = tmp; 4725 4726 return NL_SKIP; 4727} 4728 4729 4730static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4731 const u8 *addr) 4732{ 4733 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4734 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4735 "mismatch (" MACSTR ")", MAC2STR(addr)); 4736 wpa_driver_nl80211_mlme(drv, addr, 4737 NL80211_CMD_DEAUTHENTICATE, 4738 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4739 } 4740} 4741 4742 4743static void wpa_driver_nl80211_check_bss_status( 4744 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4745{ 4746 size_t i; 4747 4748 for (i = 0; i < res->num; i++) { 4749 struct wpa_scan_res *r = res->res[i]; 4750 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4751 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4752 "indicates BSS status with " MACSTR 4753 " as authenticated", 4754 MAC2STR(r->bssid)); 4755 if (is_sta_interface(drv->nlmode) && 4756 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4757 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4758 0) { 4759 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4760 " in local state (auth=" MACSTR 4761 " assoc=" MACSTR ")", 4762 MAC2STR(drv->auth_bssid), 4763 MAC2STR(drv->bssid)); 4764 clear_state_mismatch(drv, r->bssid); 4765 } 4766 } 4767 4768 if (r->flags & WPA_SCAN_ASSOCIATED) { 4769 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4770 "indicate BSS status with " MACSTR 4771 " as associated", 4772 MAC2STR(r->bssid)); 4773 if (is_sta_interface(drv->nlmode) && 4774 !drv->associated) { 4775 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4776 "(not associated) does not match " 4777 "with BSS state"); 4778 clear_state_mismatch(drv, r->bssid); 4779 } else if (is_sta_interface(drv->nlmode) && 4780 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4781 0) { 4782 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4783 "(associated with " MACSTR ") does " 4784 "not match with BSS state", 4785 MAC2STR(drv->bssid)); 4786 clear_state_mismatch(drv, r->bssid); 4787 clear_state_mismatch(drv, drv->bssid); 4788 } 4789 } 4790 } 4791} 4792 4793 4794static struct wpa_scan_results * 4795nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4796{ 4797 struct nl_msg *msg; 4798 struct wpa_scan_results *res; 4799 int ret; 4800 struct nl80211_bss_info_arg arg; 4801 4802 res = os_zalloc(sizeof(*res)); 4803 if (res == NULL) 4804 return NULL; 4805 msg = nlmsg_alloc(); 4806 if (!msg) 4807 goto nla_put_failure; 4808 4809 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4810 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4811 goto nla_put_failure; 4812 4813 arg.drv = drv; 4814 arg.res = res; 4815 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4816 msg = NULL; 4817 if (ret == 0) { 4818 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4819 "BSSes)", (unsigned long) res->num); 4820 nl80211_get_noise_for_scan_results(drv, res); 4821 return res; 4822 } 4823 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4824 "(%s)", ret, strerror(-ret)); 4825nla_put_failure: 4826 nlmsg_free(msg); 4827 wpa_scan_results_free(res); 4828 return NULL; 4829} 4830 4831 4832/** 4833 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4834 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4835 * Returns: Scan results on success, -1 on failure 4836 */ 4837static struct wpa_scan_results * 4838wpa_driver_nl80211_get_scan_results(void *priv) 4839{ 4840 struct i802_bss *bss = priv; 4841 struct wpa_driver_nl80211_data *drv = bss->drv; 4842 struct wpa_scan_results *res; 4843 4844 res = nl80211_get_scan_results(drv); 4845 if (res) 4846 wpa_driver_nl80211_check_bss_status(drv, res); 4847 return res; 4848} 4849 4850 4851static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4852{ 4853 struct wpa_scan_results *res; 4854 size_t i; 4855 4856 res = nl80211_get_scan_results(drv); 4857 if (res == NULL) { 4858 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4859 return; 4860 } 4861 4862 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4863 for (i = 0; i < res->num; i++) { 4864 struct wpa_scan_res *r = res->res[i]; 4865 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4866 (int) i, (int) res->num, MAC2STR(r->bssid), 4867 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4868 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4869 } 4870 4871 wpa_scan_results_free(res); 4872} 4873 4874 4875static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4876 enum wpa_alg alg, const u8 *addr, 4877 int key_idx, int set_tx, 4878 const u8 *seq, size_t seq_len, 4879 const u8 *key, size_t key_len) 4880{ 4881 struct wpa_driver_nl80211_data *drv = bss->drv; 4882 int ifindex; 4883 struct nl_msg *msg; 4884 int ret; 4885 4886 /* Ignore for P2P Device */ 4887 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4888 return 0; 4889 4890 ifindex = if_nametoindex(ifname); 4891 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4892 "set_tx=%d seq_len=%lu key_len=%lu", 4893 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4894 (unsigned long) seq_len, (unsigned long) key_len); 4895#ifdef CONFIG_TDLS 4896 if (key_idx == -1) 4897 key_idx = 0; 4898#endif /* CONFIG_TDLS */ 4899 4900 msg = nlmsg_alloc(); 4901 if (!msg) 4902 return -ENOMEM; 4903 4904 if (alg == WPA_ALG_NONE) { 4905 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4906 } else { 4907 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4908 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4909 switch (alg) { 4910 case WPA_ALG_WEP: 4911 if (key_len == 5) 4912 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4913 WLAN_CIPHER_SUITE_WEP40); 4914 else 4915 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4916 WLAN_CIPHER_SUITE_WEP104); 4917 break; 4918 case WPA_ALG_TKIP: 4919 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4920 WLAN_CIPHER_SUITE_TKIP); 4921 break; 4922 case WPA_ALG_CCMP: 4923 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4924 WLAN_CIPHER_SUITE_CCMP); 4925 break; 4926 case WPA_ALG_GCMP: 4927 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4928 WLAN_CIPHER_SUITE_GCMP); 4929 break; 4930 case WPA_ALG_IGTK: 4931 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4932 WLAN_CIPHER_SUITE_AES_CMAC); 4933 break; 4934 case WPA_ALG_SMS4: 4935 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4936 WLAN_CIPHER_SUITE_SMS4); 4937 break; 4938 case WPA_ALG_KRK: 4939 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4940 WLAN_CIPHER_SUITE_KRK); 4941 break; 4942 default: 4943 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4944 "algorithm %d", __func__, alg); 4945 nlmsg_free(msg); 4946 return -1; 4947 } 4948 } 4949 4950 if (seq && seq_len) 4951 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4952 4953 if (addr && !is_broadcast_ether_addr(addr)) { 4954 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4955 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4956 4957 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4958 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4959 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4960 NL80211_KEYTYPE_GROUP); 4961 } 4962 } else if (addr && is_broadcast_ether_addr(addr)) { 4963 struct nlattr *types; 4964 4965 wpa_printf(MSG_DEBUG, " broadcast key"); 4966 4967 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4968 if (!types) 4969 goto nla_put_failure; 4970 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4971 nla_nest_end(msg, types); 4972 } 4973 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4974 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4975 4976 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4977 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4978 ret = 0; 4979 if (ret) 4980 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4981 ret, strerror(-ret)); 4982 4983 /* 4984 * If we failed or don't need to set the default TX key (below), 4985 * we're done here. 4986 */ 4987 if (ret || !set_tx || alg == WPA_ALG_NONE) 4988 return ret; 4989 if (is_ap_interface(drv->nlmode) && addr && 4990 !is_broadcast_ether_addr(addr)) 4991 return ret; 4992 4993 msg = nlmsg_alloc(); 4994 if (!msg) 4995 return -ENOMEM; 4996 4997 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 4998 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4999 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5000 if (alg == WPA_ALG_IGTK) 5001 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5002 else 5003 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5004 if (addr && is_broadcast_ether_addr(addr)) { 5005 struct nlattr *types; 5006 5007 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5008 if (!types) 5009 goto nla_put_failure; 5010 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5011 nla_nest_end(msg, types); 5012 } else if (addr) { 5013 struct nlattr *types; 5014 5015 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5016 if (!types) 5017 goto nla_put_failure; 5018 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5019 nla_nest_end(msg, types); 5020 } 5021 5022 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5023 if (ret == -ENOENT) 5024 ret = 0; 5025 if (ret) 5026 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5027 "err=%d %s)", ret, strerror(-ret)); 5028 return ret; 5029 5030nla_put_failure: 5031 nlmsg_free(msg); 5032 return -ENOBUFS; 5033} 5034 5035 5036static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5037 int key_idx, int defkey, 5038 const u8 *seq, size_t seq_len, 5039 const u8 *key, size_t key_len) 5040{ 5041 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5042 if (!key_attr) 5043 return -1; 5044 5045 if (defkey && alg == WPA_ALG_IGTK) 5046 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5047 else if (defkey) 5048 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5049 5050 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5051 5052 switch (alg) { 5053 case WPA_ALG_WEP: 5054 if (key_len == 5) 5055 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5056 WLAN_CIPHER_SUITE_WEP40); 5057 else 5058 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5059 WLAN_CIPHER_SUITE_WEP104); 5060 break; 5061 case WPA_ALG_TKIP: 5062 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5063 break; 5064 case WPA_ALG_CCMP: 5065 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5066 break; 5067 case WPA_ALG_GCMP: 5068 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5069 break; 5070 case WPA_ALG_IGTK: 5071 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5072 WLAN_CIPHER_SUITE_AES_CMAC); 5073 break; 5074 default: 5075 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5076 "algorithm %d", __func__, alg); 5077 return -1; 5078 } 5079 5080 if (seq && seq_len) 5081 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5082 5083 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5084 5085 nla_nest_end(msg, key_attr); 5086 5087 return 0; 5088 nla_put_failure: 5089 return -1; 5090} 5091 5092 5093static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5094 struct nl_msg *msg) 5095{ 5096 int i, privacy = 0; 5097 struct nlattr *nl_keys, *nl_key; 5098 5099 for (i = 0; i < 4; i++) { 5100 if (!params->wep_key[i]) 5101 continue; 5102 privacy = 1; 5103 break; 5104 } 5105 if (params->wps == WPS_MODE_PRIVACY) 5106 privacy = 1; 5107 if (params->pairwise_suite && 5108 params->pairwise_suite != WPA_CIPHER_NONE) 5109 privacy = 1; 5110 5111 if (!privacy) 5112 return 0; 5113 5114 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5115 5116 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5117 if (!nl_keys) 5118 goto nla_put_failure; 5119 5120 for (i = 0; i < 4; i++) { 5121 if (!params->wep_key[i]) 5122 continue; 5123 5124 nl_key = nla_nest_start(msg, i); 5125 if (!nl_key) 5126 goto nla_put_failure; 5127 5128 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5129 params->wep_key[i]); 5130 if (params->wep_key_len[i] == 5) 5131 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5132 WLAN_CIPHER_SUITE_WEP40); 5133 else 5134 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5135 WLAN_CIPHER_SUITE_WEP104); 5136 5137 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5138 5139 if (i == params->wep_tx_keyidx) 5140 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5141 5142 nla_nest_end(msg, nl_key); 5143 } 5144 nla_nest_end(msg, nl_keys); 5145 5146 return 0; 5147 5148nla_put_failure: 5149 return -ENOBUFS; 5150} 5151 5152 5153static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5154 const u8 *addr, int cmd, u16 reason_code, 5155 int local_state_change) 5156{ 5157 int ret = -1; 5158 struct nl_msg *msg; 5159 5160 msg = nlmsg_alloc(); 5161 if (!msg) 5162 return -1; 5163 5164 nl80211_cmd(drv, msg, 0, cmd); 5165 5166 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5167 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5168 if (addr) 5169 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5170 if (local_state_change) 5171 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5172 5173 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5174 msg = NULL; 5175 if (ret) { 5176 wpa_dbg(drv->ctx, MSG_DEBUG, 5177 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5178 reason_code, ret, strerror(-ret)); 5179 goto nla_put_failure; 5180 } 5181 ret = 0; 5182 5183nla_put_failure: 5184 nlmsg_free(msg); 5185 return ret; 5186} 5187 5188 5189static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5190 int reason_code) 5191{ 5192 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5193 nl80211_mark_disconnected(drv); 5194 drv->ignore_next_local_disconnect = 0; 5195 /* Disconnect command doesn't need BSSID - it uses cached value */ 5196 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5197 reason_code, 0); 5198} 5199 5200 5201static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5202 const u8 *addr, int reason_code) 5203{ 5204 struct wpa_driver_nl80211_data *drv = bss->drv; 5205 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5206 return wpa_driver_nl80211_disconnect(drv, reason_code); 5207 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5208 __func__, MAC2STR(addr), reason_code); 5209 nl80211_mark_disconnected(drv); 5210 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5211 return nl80211_leave_ibss(drv); 5212 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5213 reason_code, 0); 5214} 5215 5216 5217static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5218 struct wpa_driver_auth_params *params) 5219{ 5220 int i; 5221 5222 drv->auth_freq = params->freq; 5223 drv->auth_alg = params->auth_alg; 5224 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5225 drv->auth_local_state_change = params->local_state_change; 5226 drv->auth_p2p = params->p2p; 5227 5228 if (params->bssid) 5229 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5230 else 5231 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5232 5233 if (params->ssid) { 5234 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5235 drv->auth_ssid_len = params->ssid_len; 5236 } else 5237 drv->auth_ssid_len = 0; 5238 5239 5240 os_free(drv->auth_ie); 5241 drv->auth_ie = NULL; 5242 drv->auth_ie_len = 0; 5243 if (params->ie) { 5244 drv->auth_ie = os_malloc(params->ie_len); 5245 if (drv->auth_ie) { 5246 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5247 drv->auth_ie_len = params->ie_len; 5248 } 5249 } 5250 5251 for (i = 0; i < 4; i++) { 5252 if (params->wep_key[i] && params->wep_key_len[i] && 5253 params->wep_key_len[i] <= 16) { 5254 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5255 params->wep_key_len[i]); 5256 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5257 } else 5258 drv->auth_wep_key_len[i] = 0; 5259 } 5260} 5261 5262 5263static int wpa_driver_nl80211_authenticate( 5264 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5265{ 5266 struct wpa_driver_nl80211_data *drv = bss->drv; 5267 int ret = -1, i; 5268 struct nl_msg *msg; 5269 enum nl80211_auth_type type; 5270 enum nl80211_iftype nlmode; 5271 int count = 0; 5272 int is_retry; 5273 5274 is_retry = drv->retry_auth; 5275 drv->retry_auth = 0; 5276 5277 nl80211_mark_disconnected(drv); 5278 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5279 if (params->bssid) 5280 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5281 else 5282 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5283 /* FIX: IBSS mode */ 5284 nlmode = params->p2p ? 5285 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5286 if (drv->nlmode != nlmode && 5287 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5288 return -1; 5289 5290retry: 5291 msg = nlmsg_alloc(); 5292 if (!msg) 5293 return -1; 5294 5295 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5296 drv->ifindex); 5297 5298 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5299 5300 for (i = 0; i < 4; i++) { 5301 if (!params->wep_key[i]) 5302 continue; 5303 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5304 NULL, i, 5305 i == params->wep_tx_keyidx, NULL, 0, 5306 params->wep_key[i], 5307 params->wep_key_len[i]); 5308 if (params->wep_tx_keyidx != i) 5309 continue; 5310 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5311 params->wep_key[i], params->wep_key_len[i])) { 5312 nlmsg_free(msg); 5313 return -1; 5314 } 5315 } 5316 5317 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5318 if (params->bssid) { 5319 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5320 MAC2STR(params->bssid)); 5321 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5322 } 5323 if (params->freq) { 5324 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5325 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5326 } 5327 if (params->ssid) { 5328 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5329 params->ssid, params->ssid_len); 5330 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5331 params->ssid); 5332 } 5333 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5334 if (params->ie) 5335 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5336 if (params->sae_data) { 5337 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5338 params->sae_data_len); 5339 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5340 params->sae_data); 5341 } 5342 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5343 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5344 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5345 type = NL80211_AUTHTYPE_SHARED_KEY; 5346 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5347 type = NL80211_AUTHTYPE_NETWORK_EAP; 5348 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5349 type = NL80211_AUTHTYPE_FT; 5350 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5351 type = NL80211_AUTHTYPE_SAE; 5352 else 5353 goto nla_put_failure; 5354 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5355 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5356 if (params->local_state_change) { 5357 wpa_printf(MSG_DEBUG, " * Local state change only"); 5358 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5359 } 5360 5361 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5362 msg = NULL; 5363 if (ret) { 5364 wpa_dbg(drv->ctx, MSG_DEBUG, 5365 "nl80211: MLME command failed (auth): ret=%d (%s)", 5366 ret, strerror(-ret)); 5367 count++; 5368 if (ret == -EALREADY && count == 1 && params->bssid && 5369 !params->local_state_change) { 5370 /* 5371 * mac80211 does not currently accept new 5372 * authentication if we are already authenticated. As a 5373 * workaround, force deauthentication and try again. 5374 */ 5375 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5376 "after forced deauthentication"); 5377 wpa_driver_nl80211_deauthenticate( 5378 bss, params->bssid, 5379 WLAN_REASON_PREV_AUTH_NOT_VALID); 5380 nlmsg_free(msg); 5381 goto retry; 5382 } 5383 5384 if (ret == -ENOENT && params->freq && !is_retry) { 5385 /* 5386 * cfg80211 has likely expired the BSS entry even 5387 * though it was previously available in our internal 5388 * BSS table. To recover quickly, start a single 5389 * channel scan on the specified channel. 5390 */ 5391 struct wpa_driver_scan_params scan; 5392 int freqs[2]; 5393 5394 os_memset(&scan, 0, sizeof(scan)); 5395 scan.num_ssids = 1; 5396 if (params->ssid) { 5397 scan.ssids[0].ssid = params->ssid; 5398 scan.ssids[0].ssid_len = params->ssid_len; 5399 } 5400 freqs[0] = params->freq; 5401 freqs[1] = 0; 5402 scan.freqs = freqs; 5403 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5404 "channel scan to refresh cfg80211 BSS " 5405 "entry"); 5406 ret = wpa_driver_nl80211_scan(bss, &scan); 5407 if (ret == 0) { 5408 nl80211_copy_auth_params(drv, params); 5409 drv->scan_for_auth = 1; 5410 } 5411 } else if (is_retry) { 5412 /* 5413 * Need to indicate this with an event since the return 5414 * value from the retry is not delivered to core code. 5415 */ 5416 union wpa_event_data event; 5417 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5418 "failed"); 5419 os_memset(&event, 0, sizeof(event)); 5420 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5421 ETH_ALEN); 5422 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5423 &event); 5424 } 5425 5426 goto nla_put_failure; 5427 } 5428 ret = 0; 5429 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5430 "successfully"); 5431 5432nla_put_failure: 5433 nlmsg_free(msg); 5434 return ret; 5435} 5436 5437 5438static int wpa_driver_nl80211_authenticate_retry( 5439 struct wpa_driver_nl80211_data *drv) 5440{ 5441 struct wpa_driver_auth_params params; 5442 struct i802_bss *bss = &drv->first_bss; 5443 int i; 5444 5445 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5446 5447 os_memset(¶ms, 0, sizeof(params)); 5448 params.freq = drv->auth_freq; 5449 params.auth_alg = drv->auth_alg; 5450 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5451 params.local_state_change = drv->auth_local_state_change; 5452 params.p2p = drv->auth_p2p; 5453 5454 if (!is_zero_ether_addr(drv->auth_bssid_)) 5455 params.bssid = drv->auth_bssid_; 5456 5457 if (drv->auth_ssid_len) { 5458 params.ssid = drv->auth_ssid; 5459 params.ssid_len = drv->auth_ssid_len; 5460 } 5461 5462 params.ie = drv->auth_ie; 5463 params.ie_len = drv->auth_ie_len; 5464 5465 for (i = 0; i < 4; i++) { 5466 if (drv->auth_wep_key_len[i]) { 5467 params.wep_key[i] = drv->auth_wep_key[i]; 5468 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5469 } 5470 } 5471 5472 drv->retry_auth = 1; 5473 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5474} 5475 5476 5477struct phy_info_arg { 5478 u16 *num_modes; 5479 struct hostapd_hw_modes *modes; 5480 int last_mode, last_chan_idx; 5481}; 5482 5483static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5484 struct nlattr *ampdu_factor, 5485 struct nlattr *ampdu_density, 5486 struct nlattr *mcs_set) 5487{ 5488 if (capa) 5489 mode->ht_capab = nla_get_u16(capa); 5490 5491 if (ampdu_factor) 5492 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5493 5494 if (ampdu_density) 5495 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5496 5497 if (mcs_set && nla_len(mcs_set) >= 16) { 5498 u8 *mcs; 5499 mcs = nla_data(mcs_set); 5500 os_memcpy(mode->mcs_set, mcs, 16); 5501 } 5502} 5503 5504 5505static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5506 struct nlattr *capa, 5507 struct nlattr *mcs_set) 5508{ 5509 if (capa) 5510 mode->vht_capab = nla_get_u32(capa); 5511 5512 if (mcs_set && nla_len(mcs_set) >= 8) { 5513 u8 *mcs; 5514 mcs = nla_data(mcs_set); 5515 os_memcpy(mode->vht_mcs_set, mcs, 8); 5516 } 5517} 5518 5519 5520static void phy_info_freq(struct hostapd_hw_modes *mode, 5521 struct hostapd_channel_data *chan, 5522 struct nlattr *tb_freq[]) 5523{ 5524 u8 channel; 5525 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5526 chan->flag = 0; 5527 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5528 chan->chan = channel; 5529 5530 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5531 chan->flag |= HOSTAPD_CHAN_DISABLED; 5532 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5533 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5534 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5535 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5536 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5537 chan->flag |= HOSTAPD_CHAN_RADAR; 5538 5539 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5540 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5541 chan->max_tx_power = nla_get_u32( 5542 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5543 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5544 enum nl80211_dfs_state state = 5545 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5546 5547 switch (state) { 5548 case NL80211_DFS_USABLE: 5549 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5550 break; 5551 case NL80211_DFS_AVAILABLE: 5552 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5553 break; 5554 case NL80211_DFS_UNAVAILABLE: 5555 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5556 break; 5557 } 5558 } 5559} 5560 5561 5562static int phy_info_freqs(struct phy_info_arg *phy_info, 5563 struct hostapd_hw_modes *mode, struct nlattr *tb) 5564{ 5565 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5566 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5567 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5568 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5569 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5570 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5571 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5572 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5573 }; 5574 int new_channels = 0; 5575 struct hostapd_channel_data *channel; 5576 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5577 struct nlattr *nl_freq; 5578 int rem_freq, idx; 5579 5580 if (tb == NULL) 5581 return NL_OK; 5582 5583 nla_for_each_nested(nl_freq, tb, rem_freq) { 5584 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5585 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5586 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5587 continue; 5588 new_channels++; 5589 } 5590 5591 channel = os_realloc_array(mode->channels, 5592 mode->num_channels + new_channels, 5593 sizeof(struct hostapd_channel_data)); 5594 if (!channel) 5595 return NL_SKIP; 5596 5597 mode->channels = channel; 5598 mode->num_channels += new_channels; 5599 5600 idx = phy_info->last_chan_idx; 5601 5602 nla_for_each_nested(nl_freq, tb, rem_freq) { 5603 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5604 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5605 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5606 continue; 5607 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5608 idx++; 5609 } 5610 phy_info->last_chan_idx = idx; 5611 5612 return NL_OK; 5613} 5614 5615 5616static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5617{ 5618 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5619 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5620 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5621 { .type = NLA_FLAG }, 5622 }; 5623 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5624 struct nlattr *nl_rate; 5625 int rem_rate, idx; 5626 5627 if (tb == NULL) 5628 return NL_OK; 5629 5630 nla_for_each_nested(nl_rate, tb, rem_rate) { 5631 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5632 nla_data(nl_rate), nla_len(nl_rate), 5633 rate_policy); 5634 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5635 continue; 5636 mode->num_rates++; 5637 } 5638 5639 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5640 if (!mode->rates) 5641 return NL_SKIP; 5642 5643 idx = 0; 5644 5645 nla_for_each_nested(nl_rate, tb, rem_rate) { 5646 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5647 nla_data(nl_rate), nla_len(nl_rate), 5648 rate_policy); 5649 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5650 continue; 5651 mode->rates[idx] = nla_get_u32( 5652 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5653 idx++; 5654 } 5655 5656 return NL_OK; 5657} 5658 5659 5660static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5661{ 5662 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5663 struct hostapd_hw_modes *mode; 5664 int ret; 5665 5666 if (phy_info->last_mode != nl_band->nla_type) { 5667 mode = os_realloc_array(phy_info->modes, 5668 *phy_info->num_modes + 1, 5669 sizeof(*mode)); 5670 if (!mode) 5671 return NL_SKIP; 5672 phy_info->modes = mode; 5673 5674 mode = &phy_info->modes[*(phy_info->num_modes)]; 5675 os_memset(mode, 0, sizeof(*mode)); 5676 mode->mode = NUM_HOSTAPD_MODES; 5677 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; 5678 *(phy_info->num_modes) += 1; 5679 phy_info->last_mode = nl_band->nla_type; 5680 phy_info->last_chan_idx = 0; 5681 } else 5682 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5683 5684 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5685 nla_len(nl_band), NULL); 5686 5687 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5688 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5689 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5690 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5691 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5692 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5693 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5694 if (ret != NL_OK) 5695 return ret; 5696 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5697 if (ret != NL_OK) 5698 return ret; 5699 5700 return NL_OK; 5701} 5702 5703 5704static int phy_info_handler(struct nl_msg *msg, void *arg) 5705{ 5706 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5707 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5708 struct phy_info_arg *phy_info = arg; 5709 struct nlattr *nl_band; 5710 int rem_band; 5711 5712 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5713 genlmsg_attrlen(gnlh, 0), NULL); 5714 5715 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5716 return NL_SKIP; 5717 5718 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5719 { 5720 int res = phy_info_band(phy_info, nl_band); 5721 if (res != NL_OK) 5722 return res; 5723 } 5724 5725 return NL_SKIP; 5726} 5727 5728 5729static struct hostapd_hw_modes * 5730wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5731 u16 *num_modes) 5732{ 5733 u16 m; 5734 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5735 int i, mode11g_idx = -1; 5736 5737 /* heuristic to set up modes */ 5738 for (m = 0; m < *num_modes; m++) { 5739 if (!modes[m].num_channels) 5740 continue; 5741 if (modes[m].channels[0].freq < 4000) { 5742 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5743 for (i = 0; i < modes[m].num_rates; i++) { 5744 if (modes[m].rates[i] > 200) { 5745 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5746 break; 5747 } 5748 } 5749 } else if (modes[m].channels[0].freq > 50000) 5750 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5751 else 5752 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5753 } 5754 5755 /* If only 802.11g mode is included, use it to construct matching 5756 * 802.11b mode data. */ 5757 5758 for (m = 0; m < *num_modes; m++) { 5759 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5760 return modes; /* 802.11b already included */ 5761 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5762 mode11g_idx = m; 5763 } 5764 5765 if (mode11g_idx < 0) 5766 return modes; /* 2.4 GHz band not supported at all */ 5767 5768 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5769 if (nmodes == NULL) 5770 return modes; /* Could not add 802.11b mode */ 5771 5772 mode = &nmodes[*num_modes]; 5773 os_memset(mode, 0, sizeof(*mode)); 5774 (*num_modes)++; 5775 modes = nmodes; 5776 5777 mode->mode = HOSTAPD_MODE_IEEE80211B; 5778 5779 mode11g = &modes[mode11g_idx]; 5780 mode->num_channels = mode11g->num_channels; 5781 mode->channels = os_malloc(mode11g->num_channels * 5782 sizeof(struct hostapd_channel_data)); 5783 if (mode->channels == NULL) { 5784 (*num_modes)--; 5785 return modes; /* Could not add 802.11b mode */ 5786 } 5787 os_memcpy(mode->channels, mode11g->channels, 5788 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5789 5790 mode->num_rates = 0; 5791 mode->rates = os_malloc(4 * sizeof(int)); 5792 if (mode->rates == NULL) { 5793 os_free(mode->channels); 5794 (*num_modes)--; 5795 return modes; /* Could not add 802.11b mode */ 5796 } 5797 5798 for (i = 0; i < mode11g->num_rates; i++) { 5799 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5800 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5801 continue; 5802 mode->rates[mode->num_rates] = mode11g->rates[i]; 5803 mode->num_rates++; 5804 if (mode->num_rates == 4) 5805 break; 5806 } 5807 5808 if (mode->num_rates == 0) { 5809 os_free(mode->channels); 5810 os_free(mode->rates); 5811 (*num_modes)--; 5812 return modes; /* No 802.11b rates */ 5813 } 5814 5815 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5816 "information"); 5817 5818 return modes; 5819} 5820 5821 5822static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5823 int end) 5824{ 5825 int c; 5826 5827 for (c = 0; c < mode->num_channels; c++) { 5828 struct hostapd_channel_data *chan = &mode->channels[c]; 5829 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5830 chan->flag |= HOSTAPD_CHAN_HT40; 5831 } 5832} 5833 5834 5835static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5836 int end) 5837{ 5838 int c; 5839 5840 for (c = 0; c < mode->num_channels; c++) { 5841 struct hostapd_channel_data *chan = &mode->channels[c]; 5842 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5843 continue; 5844 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5845 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5846 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5847 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5848 } 5849} 5850 5851 5852static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5853 struct phy_info_arg *results) 5854{ 5855 u32 start, end, max_bw; 5856 u16 m; 5857 5858 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5859 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5860 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5861 return; 5862 5863 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5864 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5865 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5866 5867 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5868 start, end, max_bw); 5869 if (max_bw < 40) 5870 return; 5871 5872 for (m = 0; m < *results->num_modes; m++) { 5873 if (!(results->modes[m].ht_capab & 5874 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5875 continue; 5876 nl80211_set_ht40_mode(&results->modes[m], start, end); 5877 } 5878} 5879 5880 5881static void nl80211_reg_rule_sec(struct nlattr *tb[], 5882 struct phy_info_arg *results) 5883{ 5884 u32 start, end, max_bw; 5885 u16 m; 5886 5887 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5888 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5889 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5890 return; 5891 5892 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5893 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5894 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5895 5896 if (max_bw < 20) 5897 return; 5898 5899 for (m = 0; m < *results->num_modes; m++) { 5900 if (!(results->modes[m].ht_capab & 5901 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5902 continue; 5903 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5904 } 5905} 5906 5907 5908static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5909{ 5910 struct phy_info_arg *results = arg; 5911 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5912 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5913 struct nlattr *nl_rule; 5914 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5915 int rem_rule; 5916 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5917 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5918 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5919 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5920 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5921 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5922 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5923 }; 5924 5925 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5926 genlmsg_attrlen(gnlh, 0), NULL); 5927 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5928 !tb_msg[NL80211_ATTR_REG_RULES]) { 5929 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5930 "available"); 5931 return NL_SKIP; 5932 } 5933 5934 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5935 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5936 5937 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5938 { 5939 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5940 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5941 nl80211_reg_rule_ht40(tb_rule, results); 5942 } 5943 5944 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5945 { 5946 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5947 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5948 nl80211_reg_rule_sec(tb_rule, results); 5949 } 5950 5951 return NL_SKIP; 5952} 5953 5954 5955static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5956 struct phy_info_arg *results) 5957{ 5958 struct nl_msg *msg; 5959 5960 msg = nlmsg_alloc(); 5961 if (!msg) 5962 return -ENOMEM; 5963 5964 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 5965 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 5966} 5967 5968 5969static struct hostapd_hw_modes * 5970wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 5971{ 5972 u32 feat; 5973 struct i802_bss *bss = priv; 5974 struct wpa_driver_nl80211_data *drv = bss->drv; 5975 struct nl_msg *msg; 5976 struct phy_info_arg result = { 5977 .num_modes = num_modes, 5978 .modes = NULL, 5979 .last_mode = -1, 5980 }; 5981 5982 *num_modes = 0; 5983 *flags = 0; 5984 5985 msg = nlmsg_alloc(); 5986 if (!msg) 5987 return NULL; 5988 5989 feat = get_nl80211_protocol_features(drv); 5990 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 5991 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 5992 else 5993 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 5994 5995 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 5996 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5997 5998 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 5999 nl80211_set_ht40_flags(drv, &result); 6000 return wpa_driver_nl80211_postprocess_modes(result.modes, 6001 num_modes); 6002 } 6003 msg = NULL; 6004 nla_put_failure: 6005 nlmsg_free(msg); 6006 return NULL; 6007} 6008 6009 6010static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6011 const void *data, size_t len, 6012 int encrypt, int noack) 6013{ 6014 __u8 rtap_hdr[] = { 6015 0x00, 0x00, /* radiotap version */ 6016 0x0e, 0x00, /* radiotap length */ 6017 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6018 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6019 0x00, /* padding */ 6020 0x00, 0x00, /* RX and TX flags to indicate that */ 6021 0x00, 0x00, /* this is the injected frame directly */ 6022 }; 6023 struct iovec iov[2] = { 6024 { 6025 .iov_base = &rtap_hdr, 6026 .iov_len = sizeof(rtap_hdr), 6027 }, 6028 { 6029 .iov_base = (void *) data, 6030 .iov_len = len, 6031 } 6032 }; 6033 struct msghdr msg = { 6034 .msg_name = NULL, 6035 .msg_namelen = 0, 6036 .msg_iov = iov, 6037 .msg_iovlen = 2, 6038 .msg_control = NULL, 6039 .msg_controllen = 0, 6040 .msg_flags = 0, 6041 }; 6042 int res; 6043 u16 txflags = 0; 6044 6045 if (encrypt) 6046 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6047 6048 if (drv->monitor_sock < 0) { 6049 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6050 "for %s", __func__); 6051 return -1; 6052 } 6053 6054 if (noack) 6055 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6056 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6057 6058 res = sendmsg(drv->monitor_sock, &msg, 0); 6059 if (res < 0) { 6060 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6061 return -1; 6062 } 6063 return 0; 6064} 6065 6066 6067static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6068 const void *data, size_t len, 6069 int encrypt, int noack, 6070 unsigned int freq, int no_cck, 6071 int offchanok, unsigned int wait_time) 6072{ 6073 struct wpa_driver_nl80211_data *drv = bss->drv; 6074 u64 cookie; 6075 6076 if (freq == 0) 6077 freq = bss->freq; 6078 6079 if (drv->use_monitor) 6080 return wpa_driver_nl80211_send_mntr(drv, data, len, 6081 encrypt, noack); 6082 6083 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6084 &cookie, no_cck, noack, offchanok); 6085} 6086 6087 6088static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6089 size_t data_len, int noack, 6090 unsigned int freq, int no_cck, 6091 int offchanok, 6092 unsigned int wait_time) 6093{ 6094 struct wpa_driver_nl80211_data *drv = bss->drv; 6095 struct ieee80211_mgmt *mgmt; 6096 int encrypt = 1; 6097 u16 fc; 6098 6099 mgmt = (struct ieee80211_mgmt *) data; 6100 fc = le_to_host16(mgmt->frame_control); 6101 6102 if ((is_sta_interface(drv->nlmode) || 6103 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6104 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6105 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6106 /* 6107 * The use of last_mgmt_freq is a bit of a hack, 6108 * but it works due to the single-threaded nature 6109 * of wpa_supplicant. 6110 */ 6111 if (freq == 0) 6112 freq = drv->last_mgmt_freq; 6113 return nl80211_send_frame_cmd(bss, freq, 0, 6114 data, data_len, NULL, 1, noack, 6115 1); 6116 } 6117 6118 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6119 if (freq == 0) 6120 freq = bss->freq; 6121 return nl80211_send_frame_cmd(bss, freq, 6122 (int) freq == bss->freq ? 0 : 6123 wait_time, 6124 data, data_len, 6125 &drv->send_action_cookie, 6126 no_cck, noack, offchanok); 6127 } 6128 6129 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6130 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6131 /* 6132 * Only one of the authentication frame types is encrypted. 6133 * In order for static WEP encryption to work properly (i.e., 6134 * to not encrypt the frame), we need to tell mac80211 about 6135 * the frames that must not be encrypted. 6136 */ 6137 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6138 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6139 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6140 encrypt = 0; 6141 } 6142 6143 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6144 noack, freq, no_cck, offchanok, 6145 wait_time); 6146} 6147 6148 6149static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6150 int slot, int ht_opmode, int ap_isolate, 6151 int *basic_rates) 6152{ 6153 struct wpa_driver_nl80211_data *drv = bss->drv; 6154 struct nl_msg *msg; 6155 6156 msg = nlmsg_alloc(); 6157 if (!msg) 6158 return -ENOMEM; 6159 6160 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6161 6162 if (cts >= 0) 6163 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6164 if (preamble >= 0) 6165 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6166 if (slot >= 0) 6167 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6168 if (ht_opmode >= 0) 6169 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6170 if (ap_isolate >= 0) 6171 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6172 6173 if (basic_rates) { 6174 u8 rates[NL80211_MAX_SUPP_RATES]; 6175 u8 rates_len = 0; 6176 int i; 6177 6178 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6179 i++) 6180 rates[rates_len++] = basic_rates[i] / 5; 6181 6182 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6183 } 6184 6185 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6186 6187 return send_and_recv_msgs(drv, msg, NULL, NULL); 6188 nla_put_failure: 6189 nlmsg_free(msg); 6190 return -ENOBUFS; 6191} 6192 6193 6194static int wpa_driver_nl80211_set_acl(void *priv, 6195 struct hostapd_acl_params *params) 6196{ 6197 struct i802_bss *bss = priv; 6198 struct wpa_driver_nl80211_data *drv = bss->drv; 6199 struct nl_msg *msg; 6200 struct nlattr *acl; 6201 unsigned int i; 6202 int ret = 0; 6203 6204 if (!(drv->capa.max_acl_mac_addrs)) 6205 return -ENOTSUP; 6206 6207 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6208 return -ENOTSUP; 6209 6210 msg = nlmsg_alloc(); 6211 if (!msg) 6212 return -ENOMEM; 6213 6214 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6215 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6216 6217 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6218 6219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6220 6221 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6222 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6223 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6224 6225 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6226 if (acl == NULL) 6227 goto nla_put_failure; 6228 6229 for (i = 0; i < params->num_mac_acl; i++) 6230 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6231 6232 nla_nest_end(msg, acl); 6233 6234 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6235 msg = NULL; 6236 if (ret) { 6237 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6238 ret, strerror(-ret)); 6239 } 6240 6241nla_put_failure: 6242 nlmsg_free(msg); 6243 6244 return ret; 6245} 6246 6247 6248static int wpa_driver_nl80211_set_ap(void *priv, 6249 struct wpa_driver_ap_params *params) 6250{ 6251 struct i802_bss *bss = priv; 6252 struct wpa_driver_nl80211_data *drv = bss->drv; 6253 struct nl_msg *msg; 6254 u8 cmd = NL80211_CMD_NEW_BEACON; 6255 int ret; 6256 int beacon_set; 6257 int ifindex = if_nametoindex(bss->ifname); 6258 int num_suites; 6259 u32 suites[10]; 6260 u32 ver; 6261 6262 beacon_set = bss->beacon_set; 6263 6264 msg = nlmsg_alloc(); 6265 if (!msg) 6266 return -ENOMEM; 6267 6268 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6269 beacon_set); 6270 if (beacon_set) 6271 cmd = NL80211_CMD_SET_BEACON; 6272 6273 nl80211_cmd(drv, msg, 0, cmd); 6274 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6275 params->head, params->head_len); 6276 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6277 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6278 params->tail, params->tail_len); 6279 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6280 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6281 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6282 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6283 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6284 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6285 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6286 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6287 params->ssid, params->ssid_len); 6288 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6289 params->ssid); 6290 if (params->proberesp && params->proberesp_len) { 6291 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6292 params->proberesp, params->proberesp_len); 6293 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6294 params->proberesp); 6295 } 6296 switch (params->hide_ssid) { 6297 case NO_SSID_HIDING: 6298 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6299 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6300 NL80211_HIDDEN_SSID_NOT_IN_USE); 6301 break; 6302 case HIDDEN_SSID_ZERO_LEN: 6303 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6304 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6305 NL80211_HIDDEN_SSID_ZERO_LEN); 6306 break; 6307 case HIDDEN_SSID_ZERO_CONTENTS: 6308 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6309 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6310 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6311 break; 6312 } 6313 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6314 if (params->privacy) 6315 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6316 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6317 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6318 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6319 /* Leave out the attribute */ 6320 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6321 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6322 NL80211_AUTHTYPE_SHARED_KEY); 6323 else 6324 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6325 NL80211_AUTHTYPE_OPEN_SYSTEM); 6326 6327 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6328 ver = 0; 6329 if (params->wpa_version & WPA_PROTO_WPA) 6330 ver |= NL80211_WPA_VERSION_1; 6331 if (params->wpa_version & WPA_PROTO_RSN) 6332 ver |= NL80211_WPA_VERSION_2; 6333 if (ver) 6334 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6335 6336 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6337 params->key_mgmt_suites); 6338 num_suites = 0; 6339 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6340 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6341 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6342 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6343 if (num_suites) { 6344 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6345 num_suites * sizeof(u32), suites); 6346 } 6347 6348 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6349 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6350 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6351 6352 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6353 params->pairwise_ciphers); 6354 num_suites = 0; 6355 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6356 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6357 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6358 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6359 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6360 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6361 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6362 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6363 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6364 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6365 if (num_suites) { 6366 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6367 num_suites * sizeof(u32), suites); 6368 } 6369 6370 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6371 params->group_cipher); 6372 switch (params->group_cipher) { 6373 case WPA_CIPHER_CCMP: 6374 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6375 WLAN_CIPHER_SUITE_CCMP); 6376 break; 6377 case WPA_CIPHER_GCMP: 6378 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6379 WLAN_CIPHER_SUITE_GCMP); 6380 break; 6381 case WPA_CIPHER_TKIP: 6382 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6383 WLAN_CIPHER_SUITE_TKIP); 6384 break; 6385 case WPA_CIPHER_WEP104: 6386 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6387 WLAN_CIPHER_SUITE_WEP104); 6388 break; 6389 case WPA_CIPHER_WEP40: 6390 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6391 WLAN_CIPHER_SUITE_WEP40); 6392 break; 6393 } 6394 6395 if (params->beacon_ies) { 6396 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6397 params->beacon_ies); 6398 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6399 wpabuf_head(params->beacon_ies)); 6400 } 6401 if (params->proberesp_ies) { 6402 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6403 params->proberesp_ies); 6404 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6405 wpabuf_len(params->proberesp_ies), 6406 wpabuf_head(params->proberesp_ies)); 6407 } 6408 if (params->assocresp_ies) { 6409 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6410 params->assocresp_ies); 6411 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6412 wpabuf_len(params->assocresp_ies), 6413 wpabuf_head(params->assocresp_ies)); 6414 } 6415 6416 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6417 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6418 params->ap_max_inactivity); 6419 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6420 params->ap_max_inactivity); 6421 } 6422 6423 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6424 if (ret) { 6425 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6426 ret, strerror(-ret)); 6427 } else { 6428 bss->beacon_set = 1; 6429 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6430 params->short_slot_time, params->ht_opmode, 6431 params->isolate, params->basic_rates); 6432 } 6433 return ret; 6434 nla_put_failure: 6435 nlmsg_free(msg); 6436 return -ENOBUFS; 6437} 6438 6439 6440static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6441 struct hostapd_freq_params *freq) 6442{ 6443 struct wpa_driver_nl80211_data *drv = bss->drv; 6444 struct nl_msg *msg; 6445 int ret; 6446 6447 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6448 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6449 freq->freq, freq->ht_enabled, freq->vht_enabled, 6450 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6451 msg = nlmsg_alloc(); 6452 if (!msg) 6453 return -1; 6454 6455 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6456 6457 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6458 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6459 if (freq->vht_enabled) { 6460 switch (freq->bandwidth) { 6461 case 20: 6462 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6463 NL80211_CHAN_WIDTH_20); 6464 break; 6465 case 40: 6466 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6467 NL80211_CHAN_WIDTH_40); 6468 break; 6469 case 80: 6470 if (freq->center_freq2) 6471 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6472 NL80211_CHAN_WIDTH_80P80); 6473 else 6474 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6475 NL80211_CHAN_WIDTH_80); 6476 break; 6477 case 160: 6478 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6479 NL80211_CHAN_WIDTH_160); 6480 break; 6481 default: 6482 return -1; 6483 } 6484 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6485 if (freq->center_freq2) 6486 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6487 freq->center_freq2); 6488 } else if (freq->ht_enabled) { 6489 switch (freq->sec_channel_offset) { 6490 case -1: 6491 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6492 NL80211_CHAN_HT40MINUS); 6493 break; 6494 case 1: 6495 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6496 NL80211_CHAN_HT40PLUS); 6497 break; 6498 default: 6499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6500 NL80211_CHAN_HT20); 6501 break; 6502 } 6503 } 6504 6505 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6506 msg = NULL; 6507 if (ret == 0) { 6508 bss->freq = freq->freq; 6509 return 0; 6510 } 6511 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6512 "%d (%s)", freq->freq, ret, strerror(-ret)); 6513nla_put_failure: 6514 nlmsg_free(msg); 6515 return -1; 6516} 6517 6518 6519static u32 sta_flags_nl80211(int flags) 6520{ 6521 u32 f = 0; 6522 6523 if (flags & WPA_STA_AUTHORIZED) 6524 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6525 if (flags & WPA_STA_WMM) 6526 f |= BIT(NL80211_STA_FLAG_WME); 6527 if (flags & WPA_STA_SHORT_PREAMBLE) 6528 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6529 if (flags & WPA_STA_MFP) 6530 f |= BIT(NL80211_STA_FLAG_MFP); 6531 if (flags & WPA_STA_TDLS_PEER) 6532 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6533 6534 return f; 6535} 6536 6537 6538static int wpa_driver_nl80211_sta_add(void *priv, 6539 struct hostapd_sta_add_params *params) 6540{ 6541 struct i802_bss *bss = priv; 6542 struct wpa_driver_nl80211_data *drv = bss->drv; 6543 struct nl_msg *msg; 6544 struct nl80211_sta_flag_update upd; 6545 int ret = -ENOBUFS; 6546 6547 if ((params->flags & WPA_STA_TDLS_PEER) && 6548 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6549 return -EOPNOTSUPP; 6550 6551 msg = nlmsg_alloc(); 6552 if (!msg) 6553 return -ENOMEM; 6554 6555 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6556 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6557 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6558 NL80211_CMD_NEW_STATION); 6559 6560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6561 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6562 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6563 params->supp_rates); 6564 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6565 params->supp_rates_len); 6566 if (!params->set) { 6567 if (params->aid) { 6568 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6569 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6570 } else { 6571 /* 6572 * cfg80211 validates that AID is non-zero, so we have 6573 * to make this a non-zero value for the TDLS case where 6574 * a dummy STA entry is used for now. 6575 */ 6576 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6577 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6578 } 6579 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6580 params->listen_interval); 6581 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6582 params->listen_interval); 6583 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6584 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6585 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6586 } 6587 if (params->ht_capabilities) { 6588 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6589 (u8 *) params->ht_capabilities, 6590 sizeof(*params->ht_capabilities)); 6591 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6592 sizeof(*params->ht_capabilities), 6593 params->ht_capabilities); 6594 } 6595 6596 if (params->vht_capabilities) { 6597 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6598 (u8 *) params->vht_capabilities, 6599 sizeof(*params->vht_capabilities)); 6600 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6601 sizeof(*params->vht_capabilities), 6602 params->vht_capabilities); 6603 } 6604 6605 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6606 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6607 6608 if (params->ext_capab) { 6609 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6610 params->ext_capab, params->ext_capab_len); 6611 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6612 params->ext_capab_len, params->ext_capab); 6613 } 6614 6615 os_memset(&upd, 0, sizeof(upd)); 6616 upd.mask = sta_flags_nl80211(params->flags); 6617 upd.set = upd.mask; 6618 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6619 upd.set, upd.mask); 6620 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6621 6622 if (params->flags & WPA_STA_WMM) { 6623 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6624 6625 if (!wme) 6626 goto nla_put_failure; 6627 6628 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6629 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6630 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6631 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6632 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6633 WMM_QOSINFO_STA_SP_MASK); 6634 nla_nest_end(msg, wme); 6635 } 6636 6637 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6638 msg = NULL; 6639 if (ret) 6640 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6641 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6642 strerror(-ret)); 6643 if (ret == -EEXIST) 6644 ret = 0; 6645 nla_put_failure: 6646 nlmsg_free(msg); 6647 return ret; 6648} 6649 6650 6651static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6652{ 6653 struct wpa_driver_nl80211_data *drv = bss->drv; 6654 struct nl_msg *msg; 6655 int ret; 6656 6657 msg = nlmsg_alloc(); 6658 if (!msg) 6659 return -ENOMEM; 6660 6661 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6662 6663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6664 if_nametoindex(bss->ifname)); 6665 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6666 6667 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6668 if (ret == -ENOENT) 6669 return 0; 6670 return ret; 6671 nla_put_failure: 6672 nlmsg_free(msg); 6673 return -ENOBUFS; 6674} 6675 6676 6677static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6678 int ifidx) 6679{ 6680 struct nl_msg *msg; 6681 6682 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6683 6684 /* stop listening for EAPOL on this interface */ 6685 del_ifidx(drv, ifidx); 6686 6687 msg = nlmsg_alloc(); 6688 if (!msg) 6689 goto nla_put_failure; 6690 6691 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6692 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6693 6694 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6695 return; 6696 msg = NULL; 6697 nla_put_failure: 6698 nlmsg_free(msg); 6699 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6700} 6701 6702 6703static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6704{ 6705 switch (mode) { 6706 case NL80211_IFTYPE_ADHOC: 6707 return "ADHOC"; 6708 case NL80211_IFTYPE_STATION: 6709 return "STATION"; 6710 case NL80211_IFTYPE_AP: 6711 return "AP"; 6712 case NL80211_IFTYPE_AP_VLAN: 6713 return "AP_VLAN"; 6714 case NL80211_IFTYPE_WDS: 6715 return "WDS"; 6716 case NL80211_IFTYPE_MONITOR: 6717 return "MONITOR"; 6718 case NL80211_IFTYPE_MESH_POINT: 6719 return "MESH_POINT"; 6720 case NL80211_IFTYPE_P2P_CLIENT: 6721 return "P2P_CLIENT"; 6722 case NL80211_IFTYPE_P2P_GO: 6723 return "P2P_GO"; 6724 case NL80211_IFTYPE_P2P_DEVICE: 6725 return "P2P_DEVICE"; 6726 default: 6727 return "unknown"; 6728 } 6729} 6730 6731 6732static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6733 const char *ifname, 6734 enum nl80211_iftype iftype, 6735 const u8 *addr, int wds, 6736 int (*handler)(struct nl_msg *, void *), 6737 void *arg) 6738{ 6739 struct nl_msg *msg; 6740 int ifidx; 6741 int ret = -ENOBUFS; 6742 6743 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6744 iftype, nl80211_iftype_str(iftype)); 6745 6746 msg = nlmsg_alloc(); 6747 if (!msg) 6748 return -1; 6749 6750 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6751 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6752 goto nla_put_failure; 6753 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6754 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6755 6756 if (iftype == NL80211_IFTYPE_MONITOR) { 6757 struct nlattr *flags; 6758 6759 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6760 if (!flags) 6761 goto nla_put_failure; 6762 6763 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6764 6765 nla_nest_end(msg, flags); 6766 } else if (wds) { 6767 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6768 } 6769 6770 ret = send_and_recv_msgs(drv, msg, handler, arg); 6771 msg = NULL; 6772 if (ret) { 6773 nla_put_failure: 6774 nlmsg_free(msg); 6775 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6776 ifname, ret, strerror(-ret)); 6777 return ret; 6778 } 6779 6780 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6781 return 0; 6782 6783 ifidx = if_nametoindex(ifname); 6784 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6785 ifname, ifidx); 6786 6787 if (ifidx <= 0) 6788 return -1; 6789 6790 /* start listening for EAPOL on this interface */ 6791 add_ifidx(drv, ifidx); 6792 6793 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6794 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6795 nl80211_remove_iface(drv, ifidx); 6796 return -1; 6797 } 6798 6799 return ifidx; 6800} 6801 6802 6803static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6804 const char *ifname, enum nl80211_iftype iftype, 6805 const u8 *addr, int wds, 6806 int (*handler)(struct nl_msg *, void *), 6807 void *arg) 6808{ 6809 int ret; 6810 6811 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6812 arg); 6813 6814 /* if error occurred and interface exists already */ 6815 if (ret == -ENFILE && if_nametoindex(ifname)) { 6816 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6817 6818 /* Try to remove the interface that was already there. */ 6819 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6820 6821 /* Try to create the interface again */ 6822 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6823 wds, handler, arg); 6824 } 6825 6826 if (ret >= 0 && is_p2p_net_interface(iftype)) 6827 nl80211_disable_11b_rates(drv, ret, 1); 6828 6829 return ret; 6830} 6831 6832 6833static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6834{ 6835 struct ieee80211_hdr *hdr; 6836 u16 fc; 6837 union wpa_event_data event; 6838 6839 hdr = (struct ieee80211_hdr *) buf; 6840 fc = le_to_host16(hdr->frame_control); 6841 6842 os_memset(&event, 0, sizeof(event)); 6843 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6844 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6845 event.tx_status.dst = hdr->addr1; 6846 event.tx_status.data = buf; 6847 event.tx_status.data_len = len; 6848 event.tx_status.ack = ok; 6849 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6850} 6851 6852 6853static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6854 u8 *buf, size_t len) 6855{ 6856 struct ieee80211_hdr *hdr = (void *)buf; 6857 u16 fc; 6858 union wpa_event_data event; 6859 6860 if (len < sizeof(*hdr)) 6861 return; 6862 6863 fc = le_to_host16(hdr->frame_control); 6864 6865 os_memset(&event, 0, sizeof(event)); 6866 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6867 event.rx_from_unknown.addr = hdr->addr2; 6868 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6869 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6870 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6871} 6872 6873 6874static void handle_frame(struct wpa_driver_nl80211_data *drv, 6875 u8 *buf, size_t len, int datarate, int ssi_signal) 6876{ 6877 struct ieee80211_hdr *hdr; 6878 u16 fc; 6879 union wpa_event_data event; 6880 6881 hdr = (struct ieee80211_hdr *) buf; 6882 fc = le_to_host16(hdr->frame_control); 6883 6884 switch (WLAN_FC_GET_TYPE(fc)) { 6885 case WLAN_FC_TYPE_MGMT: 6886 os_memset(&event, 0, sizeof(event)); 6887 event.rx_mgmt.frame = buf; 6888 event.rx_mgmt.frame_len = len; 6889 event.rx_mgmt.datarate = datarate; 6890 event.rx_mgmt.ssi_signal = ssi_signal; 6891 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6892 break; 6893 case WLAN_FC_TYPE_CTRL: 6894 /* can only get here with PS-Poll frames */ 6895 wpa_printf(MSG_DEBUG, "CTRL"); 6896 from_unknown_sta(drv, buf, len); 6897 break; 6898 case WLAN_FC_TYPE_DATA: 6899 from_unknown_sta(drv, buf, len); 6900 break; 6901 } 6902} 6903 6904 6905static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6906{ 6907 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6908 int len; 6909 unsigned char buf[3000]; 6910 struct ieee80211_radiotap_iterator iter; 6911 int ret; 6912 int datarate = 0, ssi_signal = 0; 6913 int injected = 0, failed = 0, rxflags = 0; 6914 6915 len = recv(sock, buf, sizeof(buf), 0); 6916 if (len < 0) { 6917 perror("recv"); 6918 return; 6919 } 6920 6921 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6922 printf("received invalid radiotap frame\n"); 6923 return; 6924 } 6925 6926 while (1) { 6927 ret = ieee80211_radiotap_iterator_next(&iter); 6928 if (ret == -ENOENT) 6929 break; 6930 if (ret) { 6931 printf("received invalid radiotap frame (%d)\n", ret); 6932 return; 6933 } 6934 switch (iter.this_arg_index) { 6935 case IEEE80211_RADIOTAP_FLAGS: 6936 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6937 len -= 4; 6938 break; 6939 case IEEE80211_RADIOTAP_RX_FLAGS: 6940 rxflags = 1; 6941 break; 6942 case IEEE80211_RADIOTAP_TX_FLAGS: 6943 injected = 1; 6944 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6945 IEEE80211_RADIOTAP_F_TX_FAIL; 6946 break; 6947 case IEEE80211_RADIOTAP_DATA_RETRIES: 6948 break; 6949 case IEEE80211_RADIOTAP_CHANNEL: 6950 /* TODO: convert from freq/flags to channel number */ 6951 break; 6952 case IEEE80211_RADIOTAP_RATE: 6953 datarate = *iter.this_arg * 5; 6954 break; 6955 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6956 ssi_signal = (s8) *iter.this_arg; 6957 break; 6958 } 6959 } 6960 6961 if (rxflags && injected) 6962 return; 6963 6964 if (!injected) 6965 handle_frame(drv, buf + iter.max_length, 6966 len - iter.max_length, datarate, ssi_signal); 6967 else 6968 handle_tx_callback(drv->ctx, buf + iter.max_length, 6969 len - iter.max_length, !failed); 6970} 6971 6972 6973/* 6974 * we post-process the filter code later and rewrite 6975 * this to the offset to the last instruction 6976 */ 6977#define PASS 0xFF 6978#define FAIL 0xFE 6979 6980static struct sock_filter msock_filter_insns[] = { 6981 /* 6982 * do a little-endian load of the radiotap length field 6983 */ 6984 /* load lower byte into A */ 6985 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 6986 /* put it into X (== index register) */ 6987 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6988 /* load upper byte into A */ 6989 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 6990 /* left-shift it by 8 */ 6991 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 6992 /* or with X */ 6993 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 6994 /* put result into X */ 6995 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6996 6997 /* 6998 * Allow management frames through, this also gives us those 6999 * management frames that we sent ourselves with status 7000 */ 7001 /* load the lower byte of the IEEE 802.11 frame control field */ 7002 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7003 /* mask off frame type and version */ 7004 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7005 /* accept frame if it's both 0, fall through otherwise */ 7006 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7007 7008 /* 7009 * TODO: add a bit to radiotap RX flags that indicates 7010 * that the sending station is not associated, then 7011 * add a filter here that filters on our DA and that flag 7012 * to allow us to deauth frames to that bad station. 7013 * 7014 * For now allow all To DS data frames through. 7015 */ 7016 /* load the IEEE 802.11 frame control field */ 7017 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7018 /* mask off frame type, version and DS status */ 7019 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7020 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7021 */ 7022 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7023 7024#if 0 7025 /* 7026 * drop non-data frames 7027 */ 7028 /* load the lower byte of the frame control field */ 7029 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7030 /* mask off QoS bit */ 7031 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7032 /* drop non-data frames */ 7033 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7034#endif 7035 /* load the upper byte of the frame control field */ 7036 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7037 /* mask off toDS/fromDS */ 7038 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7039 /* accept WDS frames */ 7040 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7041 7042 /* 7043 * add header length to index 7044 */ 7045 /* load the lower byte of the frame control field */ 7046 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7047 /* mask off QoS bit */ 7048 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7049 /* right shift it by 6 to give 0 or 2 */ 7050 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7051 /* add data frame header length */ 7052 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7053 /* add index, was start of 802.11 header */ 7054 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7055 /* move to index, now start of LL header */ 7056 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7057 7058 /* 7059 * Accept empty data frames, we use those for 7060 * polling activity. 7061 */ 7062 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7063 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7064 7065 /* 7066 * Accept EAPOL frames 7067 */ 7068 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7069 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7070 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7071 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7072 7073 /* keep these last two statements or change the code below */ 7074 /* return 0 == "DROP" */ 7075 BPF_STMT(BPF_RET | BPF_K, 0), 7076 /* return ~0 == "keep all" */ 7077 BPF_STMT(BPF_RET | BPF_K, ~0), 7078}; 7079 7080static struct sock_fprog msock_filter = { 7081 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7082 .filter = msock_filter_insns, 7083}; 7084 7085 7086static int add_monitor_filter(int s) 7087{ 7088 int idx; 7089 7090 /* rewrite all PASS/FAIL jump offsets */ 7091 for (idx = 0; idx < msock_filter.len; idx++) { 7092 struct sock_filter *insn = &msock_filter_insns[idx]; 7093 7094 if (BPF_CLASS(insn->code) == BPF_JMP) { 7095 if (insn->code == (BPF_JMP|BPF_JA)) { 7096 if (insn->k == PASS) 7097 insn->k = msock_filter.len - idx - 2; 7098 else if (insn->k == FAIL) 7099 insn->k = msock_filter.len - idx - 3; 7100 } 7101 7102 if (insn->jt == PASS) 7103 insn->jt = msock_filter.len - idx - 2; 7104 else if (insn->jt == FAIL) 7105 insn->jt = msock_filter.len - idx - 3; 7106 7107 if (insn->jf == PASS) 7108 insn->jf = msock_filter.len - idx - 2; 7109 else if (insn->jf == FAIL) 7110 insn->jf = msock_filter.len - idx - 3; 7111 } 7112 } 7113 7114 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7115 &msock_filter, sizeof(msock_filter))) { 7116 perror("SO_ATTACH_FILTER"); 7117 return -1; 7118 } 7119 7120 return 0; 7121} 7122 7123 7124static void nl80211_remove_monitor_interface( 7125 struct wpa_driver_nl80211_data *drv) 7126{ 7127 drv->monitor_refcount--; 7128 if (drv->monitor_refcount > 0) 7129 return; 7130 7131 if (drv->monitor_ifidx >= 0) { 7132 nl80211_remove_iface(drv, drv->monitor_ifidx); 7133 drv->monitor_ifidx = -1; 7134 } 7135 if (drv->monitor_sock >= 0) { 7136 eloop_unregister_read_sock(drv->monitor_sock); 7137 close(drv->monitor_sock); 7138 drv->monitor_sock = -1; 7139 } 7140} 7141 7142 7143static int 7144nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7145{ 7146 char buf[IFNAMSIZ]; 7147 struct sockaddr_ll ll; 7148 int optval; 7149 socklen_t optlen; 7150 7151 if (drv->monitor_ifidx >= 0) { 7152 drv->monitor_refcount++; 7153 return 0; 7154 } 7155 7156 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7157 /* 7158 * P2P interface name is of the format p2p-%s-%d. For monitor 7159 * interface name corresponding to P2P GO, replace "p2p-" with 7160 * "mon-" to retain the same interface name length and to 7161 * indicate that it is a monitor interface. 7162 */ 7163 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7164 } else { 7165 /* Non-P2P interface with AP functionality. */ 7166 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7167 } 7168 7169 buf[IFNAMSIZ - 1] = '\0'; 7170 7171 drv->monitor_ifidx = 7172 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7173 0, NULL, NULL); 7174 7175 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7176 /* 7177 * This is backward compatibility for a few versions of 7178 * the kernel only that didn't advertise the right 7179 * attributes for the only driver that then supported 7180 * AP mode w/o monitor -- ath6kl. 7181 */ 7182 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7183 "monitor interface type - try to run without it"); 7184 drv->device_ap_sme = 1; 7185 } 7186 7187 if (drv->monitor_ifidx < 0) 7188 return -1; 7189 7190 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7191 goto error; 7192 7193 memset(&ll, 0, sizeof(ll)); 7194 ll.sll_family = AF_PACKET; 7195 ll.sll_ifindex = drv->monitor_ifidx; 7196 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7197 if (drv->monitor_sock < 0) { 7198 perror("socket[PF_PACKET,SOCK_RAW]"); 7199 goto error; 7200 } 7201 7202 if (add_monitor_filter(drv->monitor_sock)) { 7203 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7204 "interface; do filtering in user space"); 7205 /* This works, but will cost in performance. */ 7206 } 7207 7208 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7209 perror("monitor socket bind"); 7210 goto error; 7211 } 7212 7213 optlen = sizeof(optval); 7214 optval = 20; 7215 if (setsockopt 7216 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7217 perror("Failed to set socket priority"); 7218 goto error; 7219 } 7220 7221 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7222 drv, NULL)) { 7223 printf("Could not register monitor read socket\n"); 7224 goto error; 7225 } 7226 7227 return 0; 7228 error: 7229 nl80211_remove_monitor_interface(drv); 7230 return -1; 7231} 7232 7233 7234static int nl80211_setup_ap(struct i802_bss *bss) 7235{ 7236 struct wpa_driver_nl80211_data *drv = bss->drv; 7237 7238 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7239 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7240 7241 /* 7242 * Disable Probe Request reporting unless we need it in this way for 7243 * devices that include the AP SME, in the other case (unless using 7244 * monitor iface) we'll get it through the nl_mgmt socket instead. 7245 */ 7246 if (!drv->device_ap_sme) 7247 wpa_driver_nl80211_probe_req_report(bss, 0); 7248 7249 if (!drv->device_ap_sme && !drv->use_monitor) 7250 if (nl80211_mgmt_subscribe_ap(bss)) 7251 return -1; 7252 7253 if (drv->device_ap_sme && !drv->use_monitor) 7254 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7255 return -1; 7256 7257 if (!drv->device_ap_sme && drv->use_monitor && 7258 nl80211_create_monitor_interface(drv) && 7259 !drv->device_ap_sme) 7260 return -1; 7261 7262#ifdef ANDROID_P2P 7263 if (drv->device_ap_sme && drv->use_monitor) 7264 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7265 return -1; 7266 7267 if (drv->use_monitor && 7268 nl80211_create_monitor_interface(drv)) 7269 return -1; 7270#endif 7271 7272 if (drv->device_ap_sme && 7273 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7274 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7275 "Probe Request frame reporting in AP mode"); 7276 /* Try to survive without this */ 7277 } 7278 7279 return 0; 7280} 7281 7282 7283static void nl80211_teardown_ap(struct i802_bss *bss) 7284{ 7285 struct wpa_driver_nl80211_data *drv = bss->drv; 7286 7287 if (drv->device_ap_sme) { 7288 wpa_driver_nl80211_probe_req_report(bss, 0); 7289 if (!drv->use_monitor) 7290 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7291 } else if (drv->use_monitor) 7292 nl80211_remove_monitor_interface(drv); 7293 else 7294 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7295 7296 bss->beacon_set = 0; 7297} 7298 7299 7300static int nl80211_send_eapol_data(struct i802_bss *bss, 7301 const u8 *addr, const u8 *data, 7302 size_t data_len) 7303{ 7304 struct sockaddr_ll ll; 7305 int ret; 7306 7307 if (bss->drv->eapol_tx_sock < 0) { 7308 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7309 return -1; 7310 } 7311 7312 os_memset(&ll, 0, sizeof(ll)); 7313 ll.sll_family = AF_PACKET; 7314 ll.sll_ifindex = bss->ifindex; 7315 ll.sll_protocol = htons(ETH_P_PAE); 7316 ll.sll_halen = ETH_ALEN; 7317 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7318 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7319 (struct sockaddr *) &ll, sizeof(ll)); 7320 if (ret < 0) 7321 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7322 strerror(errno)); 7323 7324 return ret; 7325} 7326 7327 7328static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7329 7330static int wpa_driver_nl80211_hapd_send_eapol( 7331 void *priv, const u8 *addr, const u8 *data, 7332 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7333{ 7334 struct i802_bss *bss = priv; 7335 struct wpa_driver_nl80211_data *drv = bss->drv; 7336 struct ieee80211_hdr *hdr; 7337 size_t len; 7338 u8 *pos; 7339 int res; 7340 int qos = flags & WPA_STA_WMM; 7341#ifndef ANDROID_P2P 7342 if (drv->device_ap_sme || !drv->use_monitor) 7343#else 7344 if (drv->device_ap_sme && !drv->use_monitor) 7345#endif 7346 return nl80211_send_eapol_data(bss, addr, data, data_len); 7347 7348 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7349 data_len; 7350 hdr = os_zalloc(len); 7351 if (hdr == NULL) { 7352 printf("malloc() failed for i802_send_data(len=%lu)\n", 7353 (unsigned long) len); 7354 return -1; 7355 } 7356 7357 hdr->frame_control = 7358 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7359 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7360 if (encrypt) 7361 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7362 if (qos) { 7363 hdr->frame_control |= 7364 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7365 } 7366 7367 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7368 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7369 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7370 pos = (u8 *) (hdr + 1); 7371 7372 if (qos) { 7373 /* Set highest priority in QoS header */ 7374 pos[0] = 7; 7375 pos[1] = 0; 7376 pos += 2; 7377 } 7378 7379 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7380 pos += sizeof(rfc1042_header); 7381 WPA_PUT_BE16(pos, ETH_P_PAE); 7382 pos += 2; 7383 memcpy(pos, data, data_len); 7384 7385 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7386 0, 0, 0, 0); 7387 if (res < 0) { 7388 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7389 "failed: %d (%s)", 7390 (unsigned long) len, errno, strerror(errno)); 7391 } 7392 os_free(hdr); 7393 7394 return res; 7395} 7396 7397 7398static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7399 int total_flags, 7400 int flags_or, int flags_and) 7401{ 7402 struct i802_bss *bss = priv; 7403 struct wpa_driver_nl80211_data *drv = bss->drv; 7404 struct nl_msg *msg; 7405 struct nlattr *flags; 7406 struct nl80211_sta_flag_update upd; 7407 7408 msg = nlmsg_alloc(); 7409 if (!msg) 7410 return -ENOMEM; 7411 7412 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7413 7414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7415 if_nametoindex(bss->ifname)); 7416 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7417 7418 /* 7419 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7420 * can be removed eventually. 7421 */ 7422 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7423 if (!flags) 7424 goto nla_put_failure; 7425 if (total_flags & WPA_STA_AUTHORIZED) 7426 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7427 7428 if (total_flags & WPA_STA_WMM) 7429 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7430 7431 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7432 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7433 7434 if (total_flags & WPA_STA_MFP) 7435 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7436 7437 if (total_flags & WPA_STA_TDLS_PEER) 7438 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7439 7440 nla_nest_end(msg, flags); 7441 7442 os_memset(&upd, 0, sizeof(upd)); 7443 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7444 upd.set = sta_flags_nl80211(flags_or); 7445 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7446 7447 return send_and_recv_msgs(drv, msg, NULL, NULL); 7448 nla_put_failure: 7449 nlmsg_free(msg); 7450 return -ENOBUFS; 7451} 7452 7453 7454static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7455 struct wpa_driver_associate_params *params) 7456{ 7457 enum nl80211_iftype nlmode, old_mode; 7458 struct hostapd_freq_params freq = { 7459 .freq = params->freq, 7460 }; 7461 7462 if (params->p2p) { 7463 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7464 "group (GO)"); 7465 nlmode = NL80211_IFTYPE_P2P_GO; 7466 } else 7467 nlmode = NL80211_IFTYPE_AP; 7468 7469 old_mode = drv->nlmode; 7470 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7471 nl80211_remove_monitor_interface(drv); 7472 return -1; 7473 } 7474 7475 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7476 if (old_mode != nlmode) 7477 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7478 nl80211_remove_monitor_interface(drv); 7479 return -1; 7480 } 7481 7482 return 0; 7483} 7484 7485 7486static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7487{ 7488 struct nl_msg *msg; 7489 int ret = -1; 7490 7491 msg = nlmsg_alloc(); 7492 if (!msg) 7493 return -1; 7494 7495 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7496 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7497 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7498 msg = NULL; 7499 if (ret) { 7500 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7501 "(%s)", ret, strerror(-ret)); 7502 goto nla_put_failure; 7503 } 7504 7505 ret = 0; 7506 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7507 7508nla_put_failure: 7509 nlmsg_free(msg); 7510 return ret; 7511} 7512 7513 7514static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7515 struct wpa_driver_associate_params *params) 7516{ 7517 struct nl_msg *msg; 7518 int ret = -1; 7519 int count = 0; 7520 7521 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7522 7523 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7524 NL80211_IFTYPE_ADHOC)) { 7525 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7526 "IBSS mode"); 7527 return -1; 7528 } 7529 7530retry: 7531 msg = nlmsg_alloc(); 7532 if (!msg) 7533 return -1; 7534 7535 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7536 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7537 7538 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7539 goto nla_put_failure; 7540 7541 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7542 params->ssid, params->ssid_len); 7543 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7544 params->ssid); 7545 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7546 drv->ssid_len = params->ssid_len; 7547 7548 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7549 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7550 7551 ret = nl80211_set_conn_keys(params, msg); 7552 if (ret) 7553 goto nla_put_failure; 7554 7555 if (params->bssid && params->fixed_bssid) { 7556 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7557 MAC2STR(params->bssid)); 7558 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7559 } 7560 7561 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7562 params->key_mgmt_suite == KEY_MGMT_PSK || 7563 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7564 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7565 wpa_printf(MSG_DEBUG, " * control port"); 7566 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7567 } 7568 7569 if (params->wpa_ie) { 7570 wpa_hexdump(MSG_DEBUG, 7571 " * Extra IEs for Beacon/Probe Response frames", 7572 params->wpa_ie, params->wpa_ie_len); 7573 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7574 params->wpa_ie); 7575 } 7576 7577 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7578 msg = NULL; 7579 if (ret) { 7580 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7581 ret, strerror(-ret)); 7582 count++; 7583 if (ret == -EALREADY && count == 1) { 7584 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7585 "forced leave"); 7586 nl80211_leave_ibss(drv); 7587 nlmsg_free(msg); 7588 goto retry; 7589 } 7590 7591 goto nla_put_failure; 7592 } 7593 ret = 0; 7594 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7595 7596nla_put_failure: 7597 nlmsg_free(msg); 7598 return ret; 7599} 7600 7601 7602static int wpa_driver_nl80211_try_connect( 7603 struct wpa_driver_nl80211_data *drv, 7604 struct wpa_driver_associate_params *params) 7605{ 7606 struct nl_msg *msg; 7607 enum nl80211_auth_type type; 7608 int ret = 0; 7609 int algs; 7610 7611 msg = nlmsg_alloc(); 7612 if (!msg) 7613 return -1; 7614 7615 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7616 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7617 7618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7619 if (params->bssid) { 7620 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7621 MAC2STR(params->bssid)); 7622 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7623 } 7624 if (params->freq) { 7625 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7626 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7627 } 7628 if (params->bg_scan_period >= 0) { 7629 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7630 params->bg_scan_period); 7631 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7632 params->bg_scan_period); 7633 } 7634 if (params->ssid) { 7635 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7636 params->ssid, params->ssid_len); 7637 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7638 params->ssid); 7639 if (params->ssid_len > sizeof(drv->ssid)) 7640 goto nla_put_failure; 7641 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7642 drv->ssid_len = params->ssid_len; 7643 } 7644 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7645 if (params->wpa_ie) 7646 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7647 params->wpa_ie); 7648 7649 algs = 0; 7650 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7651 algs++; 7652 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7653 algs++; 7654 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7655 algs++; 7656 if (algs > 1) { 7657 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7658 "selection"); 7659 goto skip_auth_type; 7660 } 7661 7662 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7663 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7664 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7665 type = NL80211_AUTHTYPE_SHARED_KEY; 7666 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7667 type = NL80211_AUTHTYPE_NETWORK_EAP; 7668 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7669 type = NL80211_AUTHTYPE_FT; 7670 else 7671 goto nla_put_failure; 7672 7673 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7674 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7675 7676skip_auth_type: 7677 if (params->wpa_proto) { 7678 enum nl80211_wpa_versions ver = 0; 7679 7680 if (params->wpa_proto & WPA_PROTO_WPA) 7681 ver |= NL80211_WPA_VERSION_1; 7682 if (params->wpa_proto & WPA_PROTO_RSN) 7683 ver |= NL80211_WPA_VERSION_2; 7684 7685 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7686 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7687 } 7688 7689 if (params->pairwise_suite != CIPHER_NONE) { 7690 int cipher; 7691 7692 switch (params->pairwise_suite) { 7693 case CIPHER_SMS4: 7694 cipher = WLAN_CIPHER_SUITE_SMS4; 7695 break; 7696 case CIPHER_WEP40: 7697 cipher = WLAN_CIPHER_SUITE_WEP40; 7698 break; 7699 case CIPHER_WEP104: 7700 cipher = WLAN_CIPHER_SUITE_WEP104; 7701 break; 7702 case CIPHER_CCMP: 7703 cipher = WLAN_CIPHER_SUITE_CCMP; 7704 break; 7705 case CIPHER_GCMP: 7706 cipher = WLAN_CIPHER_SUITE_GCMP; 7707 break; 7708 case CIPHER_TKIP: 7709 default: 7710 cipher = WLAN_CIPHER_SUITE_TKIP; 7711 break; 7712 } 7713 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7714 } 7715 7716 if (params->group_suite != CIPHER_NONE) { 7717 int cipher; 7718 7719 switch (params->group_suite) { 7720 case CIPHER_SMS4: 7721 cipher = WLAN_CIPHER_SUITE_SMS4; 7722 break; 7723 case CIPHER_WEP40: 7724 cipher = WLAN_CIPHER_SUITE_WEP40; 7725 break; 7726 case CIPHER_WEP104: 7727 cipher = WLAN_CIPHER_SUITE_WEP104; 7728 break; 7729 case CIPHER_CCMP: 7730 cipher = WLAN_CIPHER_SUITE_CCMP; 7731 break; 7732 case CIPHER_GCMP: 7733 cipher = WLAN_CIPHER_SUITE_GCMP; 7734 break; 7735 case CIPHER_TKIP: 7736 default: 7737 cipher = WLAN_CIPHER_SUITE_TKIP; 7738 break; 7739 } 7740 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7741 } 7742 7743 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7744 params->key_mgmt_suite == KEY_MGMT_PSK || 7745 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7746 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7747 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7748 int mgmt = WLAN_AKM_SUITE_PSK; 7749 7750 switch (params->key_mgmt_suite) { 7751 case KEY_MGMT_CCKM: 7752 mgmt = WLAN_AKM_SUITE_CCKM; 7753 break; 7754 case KEY_MGMT_802_1X: 7755 mgmt = WLAN_AKM_SUITE_8021X; 7756 break; 7757 case KEY_MGMT_FT_802_1X: 7758 mgmt = WLAN_AKM_SUITE_FT_8021X; 7759 break; 7760 case KEY_MGMT_FT_PSK: 7761 mgmt = WLAN_AKM_SUITE_FT_PSK; 7762 break; 7763 case KEY_MGMT_PSK: 7764 default: 7765 mgmt = WLAN_AKM_SUITE_PSK; 7766 break; 7767 } 7768 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7769 } 7770 7771#ifdef CONFIG_IEEE80211W 7772 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7773 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7774#endif /* CONFIG_IEEE80211W */ 7775 7776 if (params->disable_ht) 7777 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7778 7779 if (params->htcaps && params->htcaps_mask) { 7780 int sz = sizeof(struct ieee80211_ht_capabilities); 7781 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7782 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7783 params->htcaps_mask); 7784 } 7785 7786#ifdef CONFIG_VHT_OVERRIDES 7787 if (params->disable_vht) { 7788 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7789 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7790 } 7791 7792 if (params->vhtcaps && params->vhtcaps_mask) { 7793 int sz = sizeof(struct ieee80211_vht_capabilities); 7794 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7795 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7796 params->vhtcaps_mask); 7797 } 7798#endif /* CONFIG_VHT_OVERRIDES */ 7799 7800 ret = nl80211_set_conn_keys(params, msg); 7801 if (ret) 7802 goto nla_put_failure; 7803 7804 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7805 msg = NULL; 7806 if (ret) { 7807 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7808 "(%s)", ret, strerror(-ret)); 7809 goto nla_put_failure; 7810 } 7811 ret = 0; 7812 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7813 7814nla_put_failure: 7815 nlmsg_free(msg); 7816 return ret; 7817 7818} 7819 7820 7821static int wpa_driver_nl80211_connect( 7822 struct wpa_driver_nl80211_data *drv, 7823 struct wpa_driver_associate_params *params) 7824{ 7825 int ret = wpa_driver_nl80211_try_connect(drv, params); 7826 if (ret == -EALREADY) { 7827 /* 7828 * cfg80211 does not currently accept new connections if 7829 * we are already connected. As a workaround, force 7830 * disconnection and try again. 7831 */ 7832 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7833 "disconnecting before reassociation " 7834 "attempt"); 7835 if (wpa_driver_nl80211_disconnect( 7836 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7837 return -1; 7838 /* Ignore the next local disconnect message. */ 7839 drv->ignore_next_local_disconnect = 1; 7840 ret = wpa_driver_nl80211_try_connect(drv, params); 7841 } 7842 return ret; 7843} 7844 7845 7846static int wpa_driver_nl80211_associate( 7847 void *priv, struct wpa_driver_associate_params *params) 7848{ 7849 struct i802_bss *bss = priv; 7850 struct wpa_driver_nl80211_data *drv = bss->drv; 7851 int ret = -1; 7852 struct nl_msg *msg; 7853 7854 if (params->mode == IEEE80211_MODE_AP) 7855 return wpa_driver_nl80211_ap(drv, params); 7856 7857 if (params->mode == IEEE80211_MODE_IBSS) 7858 return wpa_driver_nl80211_ibss(drv, params); 7859 7860 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7861 enum nl80211_iftype nlmode = params->p2p ? 7862 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7863 7864 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7865 return -1; 7866 return wpa_driver_nl80211_connect(drv, params); 7867 } 7868 7869 nl80211_mark_disconnected(drv); 7870 7871 msg = nlmsg_alloc(); 7872 if (!msg) 7873 return -1; 7874 7875 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7876 drv->ifindex); 7877 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7878 7879 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7880 if (params->bssid) { 7881 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7882 MAC2STR(params->bssid)); 7883 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7884 } 7885 if (params->freq) { 7886 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7887 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7888 drv->assoc_freq = params->freq; 7889 } else 7890 drv->assoc_freq = 0; 7891 if (params->bg_scan_period >= 0) { 7892 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7893 params->bg_scan_period); 7894 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7895 params->bg_scan_period); 7896 } 7897 if (params->ssid) { 7898 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7899 params->ssid, params->ssid_len); 7900 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7901 params->ssid); 7902 if (params->ssid_len > sizeof(drv->ssid)) 7903 goto nla_put_failure; 7904 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7905 drv->ssid_len = params->ssid_len; 7906 } 7907 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7908 if (params->wpa_ie) 7909 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7910 params->wpa_ie); 7911 7912 if (params->pairwise_suite != CIPHER_NONE) { 7913 int cipher; 7914 7915 switch (params->pairwise_suite) { 7916 case CIPHER_WEP40: 7917 cipher = WLAN_CIPHER_SUITE_WEP40; 7918 break; 7919 case CIPHER_WEP104: 7920 cipher = WLAN_CIPHER_SUITE_WEP104; 7921 break; 7922 case CIPHER_CCMP: 7923 cipher = WLAN_CIPHER_SUITE_CCMP; 7924 break; 7925 case CIPHER_GCMP: 7926 cipher = WLAN_CIPHER_SUITE_GCMP; 7927 break; 7928 case CIPHER_TKIP: 7929 default: 7930 cipher = WLAN_CIPHER_SUITE_TKIP; 7931 break; 7932 } 7933 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7934 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7935 } 7936 7937 if (params->group_suite != CIPHER_NONE) { 7938 int cipher; 7939 7940 switch (params->group_suite) { 7941 case CIPHER_WEP40: 7942 cipher = WLAN_CIPHER_SUITE_WEP40; 7943 break; 7944 case CIPHER_WEP104: 7945 cipher = WLAN_CIPHER_SUITE_WEP104; 7946 break; 7947 case CIPHER_CCMP: 7948 cipher = WLAN_CIPHER_SUITE_CCMP; 7949 break; 7950 case CIPHER_GCMP: 7951 cipher = WLAN_CIPHER_SUITE_GCMP; 7952 break; 7953 case CIPHER_TKIP: 7954 default: 7955 cipher = WLAN_CIPHER_SUITE_TKIP; 7956 break; 7957 } 7958 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7959 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7960 } 7961 7962#ifdef CONFIG_IEEE80211W 7963 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7964 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7965#endif /* CONFIG_IEEE80211W */ 7966 7967 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7968 7969 if (params->prev_bssid) { 7970 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 7971 MAC2STR(params->prev_bssid)); 7972 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 7973 params->prev_bssid); 7974 } 7975 7976 if (params->disable_ht) 7977 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7978 7979 if (params->htcaps && params->htcaps_mask) { 7980 int sz = sizeof(struct ieee80211_ht_capabilities); 7981 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7982 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7983 params->htcaps_mask); 7984 } 7985 7986#ifdef CONFIG_VHT_OVERRIDES 7987 if (params->disable_vht) { 7988 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7989 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7990 } 7991 7992 if (params->vhtcaps && params->vhtcaps_mask) { 7993 int sz = sizeof(struct ieee80211_vht_capabilities); 7994 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7995 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7996 params->vhtcaps_mask); 7997 } 7998#endif /* CONFIG_VHT_OVERRIDES */ 7999 8000 if (params->p2p) 8001 wpa_printf(MSG_DEBUG, " * P2P group"); 8002 8003 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8004 msg = NULL; 8005 if (ret) { 8006 wpa_dbg(drv->ctx, MSG_DEBUG, 8007 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8008 ret, strerror(-ret)); 8009 nl80211_dump_scan(drv); 8010 goto nla_put_failure; 8011 } 8012 ret = 0; 8013 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8014 "successfully"); 8015 8016nla_put_failure: 8017 nlmsg_free(msg); 8018 return ret; 8019} 8020 8021 8022static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8023 int ifindex, enum nl80211_iftype mode) 8024{ 8025 struct nl_msg *msg; 8026 int ret = -ENOBUFS; 8027 8028 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8029 ifindex, mode, nl80211_iftype_str(mode)); 8030 8031 msg = nlmsg_alloc(); 8032 if (!msg) 8033 return -ENOMEM; 8034 8035 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8036 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8037 goto nla_put_failure; 8038 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8039 8040 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8041 msg = NULL; 8042 if (!ret) 8043 return 0; 8044nla_put_failure: 8045 nlmsg_free(msg); 8046 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8047 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8048 return ret; 8049} 8050 8051 8052static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8053 enum nl80211_iftype nlmode) 8054{ 8055 struct wpa_driver_nl80211_data *drv = bss->drv; 8056 int ret = -1; 8057 int i; 8058 int was_ap = is_ap_interface(drv->nlmode); 8059 int res; 8060 8061 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8062 if (res && nlmode == nl80211_get_ifmode(bss)) 8063 res = 0; 8064 8065 if (res == 0) { 8066 drv->nlmode = nlmode; 8067 ret = 0; 8068 goto done; 8069 } 8070 8071 if (res == -ENODEV) 8072 return -1; 8073 8074 if (nlmode == drv->nlmode) { 8075 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8076 "requested mode - ignore error"); 8077 ret = 0; 8078 goto done; /* Already in the requested mode */ 8079 } 8080 8081 /* mac80211 doesn't allow mode changes while the device is up, so 8082 * take the device down, try to set the mode again, and bring the 8083 * device back up. 8084 */ 8085 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8086 "interface down"); 8087 for (i = 0; i < 10; i++) { 8088 res = i802_set_iface_flags(bss, 0); 8089 if (res == -EACCES || res == -ENODEV) 8090 break; 8091 if (res == 0) { 8092 /* Try to set the mode again while the interface is 8093 * down */ 8094 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8095 if (ret == -EACCES) 8096 break; 8097 res = i802_set_iface_flags(bss, 1); 8098 if (res && !ret) 8099 ret = -1; 8100 else if (ret != -EBUSY) 8101 break; 8102 } else 8103 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8104 "interface down"); 8105 os_sleep(0, 100000); 8106 } 8107 8108 if (!ret) { 8109 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8110 "interface is down"); 8111 drv->nlmode = nlmode; 8112 drv->ignore_if_down_event = 1; 8113 } 8114 8115done: 8116 if (ret) { 8117 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8118 "from %d failed", nlmode, drv->nlmode); 8119 return ret; 8120 } 8121 8122 if (is_p2p_net_interface(nlmode)) 8123 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8124 else if (drv->disabled_11b_rates) 8125 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8126 8127 if (is_ap_interface(nlmode)) { 8128 nl80211_mgmt_unsubscribe(bss, "start AP"); 8129 /* Setup additional AP mode functionality if needed */ 8130 if (nl80211_setup_ap(bss)) 8131 return -1; 8132 } else if (was_ap) { 8133 /* Remove additional AP mode functionality */ 8134 nl80211_teardown_ap(bss); 8135 } else { 8136 nl80211_mgmt_unsubscribe(bss, "mode change"); 8137 } 8138 8139 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8140 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8141 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8142 "frame processing - ignore for now"); 8143 8144 return 0; 8145} 8146 8147 8148static int wpa_driver_nl80211_get_capa(void *priv, 8149 struct wpa_driver_capa *capa) 8150{ 8151 struct i802_bss *bss = priv; 8152 struct wpa_driver_nl80211_data *drv = bss->drv; 8153 if (!drv->has_capability) 8154 return -1; 8155 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8156 if (drv->extended_capa && drv->extended_capa_mask) { 8157 capa->extended_capa = drv->extended_capa; 8158 capa->extended_capa_mask = drv->extended_capa_mask; 8159 capa->extended_capa_len = drv->extended_capa_len; 8160 } 8161 8162 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8163 !drv->allow_p2p_device) { 8164 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8165 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8166 } 8167 8168 return 0; 8169} 8170 8171 8172static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8173{ 8174 struct i802_bss *bss = priv; 8175 struct wpa_driver_nl80211_data *drv = bss->drv; 8176 8177 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8178 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8179 drv->operstate = state; 8180 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8181 state ? IF_OPER_UP : IF_OPER_DORMANT); 8182} 8183 8184 8185static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8186{ 8187 struct i802_bss *bss = priv; 8188 struct wpa_driver_nl80211_data *drv = bss->drv; 8189 struct nl_msg *msg; 8190 struct nl80211_sta_flag_update upd; 8191 8192 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8193 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8194 8195 msg = nlmsg_alloc(); 8196 if (!msg) 8197 return -ENOMEM; 8198 8199 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8200 8201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8202 if_nametoindex(bss->ifname)); 8203 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8204 8205 os_memset(&upd, 0, sizeof(upd)); 8206 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8207 if (authorized) 8208 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8209 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8210 8211 return send_and_recv_msgs(drv, msg, NULL, NULL); 8212 nla_put_failure: 8213 nlmsg_free(msg); 8214 return -ENOBUFS; 8215} 8216 8217 8218/* Set kernel driver on given frequency (MHz) */ 8219static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8220{ 8221 struct i802_bss *bss = priv; 8222 return wpa_driver_nl80211_set_freq(bss, freq); 8223} 8224 8225 8226#if defined(HOSTAPD) || defined(CONFIG_AP) 8227 8228static inline int min_int(int a, int b) 8229{ 8230 if (a < b) 8231 return a; 8232 return b; 8233} 8234 8235 8236static int get_key_handler(struct nl_msg *msg, void *arg) 8237{ 8238 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8239 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8240 8241 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8242 genlmsg_attrlen(gnlh, 0), NULL); 8243 8244 /* 8245 * TODO: validate the key index and mac address! 8246 * Otherwise, there's a race condition as soon as 8247 * the kernel starts sending key notifications. 8248 */ 8249 8250 if (tb[NL80211_ATTR_KEY_SEQ]) 8251 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8252 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8253 return NL_SKIP; 8254} 8255 8256 8257static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8258 int idx, u8 *seq) 8259{ 8260 struct i802_bss *bss = priv; 8261 struct wpa_driver_nl80211_data *drv = bss->drv; 8262 struct nl_msg *msg; 8263 8264 msg = nlmsg_alloc(); 8265 if (!msg) 8266 return -ENOMEM; 8267 8268 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8269 8270 if (addr) 8271 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8272 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8273 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8274 8275 memset(seq, 0, 6); 8276 8277 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8278 nla_put_failure: 8279 nlmsg_free(msg); 8280 return -ENOBUFS; 8281} 8282 8283 8284static int i802_set_rts(void *priv, int rts) 8285{ 8286 struct i802_bss *bss = priv; 8287 struct wpa_driver_nl80211_data *drv = bss->drv; 8288 struct nl_msg *msg; 8289 int ret = -ENOBUFS; 8290 u32 val; 8291 8292 msg = nlmsg_alloc(); 8293 if (!msg) 8294 return -ENOMEM; 8295 8296 if (rts >= 2347) 8297 val = (u32) -1; 8298 else 8299 val = rts; 8300 8301 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8302 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8303 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8304 8305 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8306 msg = NULL; 8307 if (!ret) 8308 return 0; 8309nla_put_failure: 8310 nlmsg_free(msg); 8311 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8312 "%d (%s)", rts, ret, strerror(-ret)); 8313 return ret; 8314} 8315 8316 8317static int i802_set_frag(void *priv, int frag) 8318{ 8319 struct i802_bss *bss = priv; 8320 struct wpa_driver_nl80211_data *drv = bss->drv; 8321 struct nl_msg *msg; 8322 int ret = -ENOBUFS; 8323 u32 val; 8324 8325 msg = nlmsg_alloc(); 8326 if (!msg) 8327 return -ENOMEM; 8328 8329 if (frag >= 2346) 8330 val = (u32) -1; 8331 else 8332 val = frag; 8333 8334 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8336 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8337 8338 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8339 msg = NULL; 8340 if (!ret) 8341 return 0; 8342nla_put_failure: 8343 nlmsg_free(msg); 8344 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8345 "%d: %d (%s)", frag, ret, strerror(-ret)); 8346 return ret; 8347} 8348 8349 8350static int i802_flush(void *priv) 8351{ 8352 struct i802_bss *bss = priv; 8353 struct wpa_driver_nl80211_data *drv = bss->drv; 8354 struct nl_msg *msg; 8355 int res; 8356 8357 msg = nlmsg_alloc(); 8358 if (!msg) 8359 return -1; 8360 8361 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8362 8363 /* 8364 * XXX: FIX! this needs to flush all VLANs too 8365 */ 8366 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8367 if_nametoindex(bss->ifname)); 8368 8369 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8370 if (res) { 8371 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8372 "(%s)", res, strerror(-res)); 8373 } 8374 return res; 8375 nla_put_failure: 8376 nlmsg_free(msg); 8377 return -ENOBUFS; 8378} 8379 8380#endif /* HOSTAPD || CONFIG_AP */ 8381 8382 8383static int get_sta_handler(struct nl_msg *msg, void *arg) 8384{ 8385 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8386 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8387 struct hostap_sta_driver_data *data = arg; 8388 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8389 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8390 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8391 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8392 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8393 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8394 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8395 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8396 }; 8397 8398 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8399 genlmsg_attrlen(gnlh, 0), NULL); 8400 8401 /* 8402 * TODO: validate the interface and mac address! 8403 * Otherwise, there's a race condition as soon as 8404 * the kernel starts sending station notifications. 8405 */ 8406 8407 if (!tb[NL80211_ATTR_STA_INFO]) { 8408 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8409 return NL_SKIP; 8410 } 8411 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8412 tb[NL80211_ATTR_STA_INFO], 8413 stats_policy)) { 8414 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8415 return NL_SKIP; 8416 } 8417 8418 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8419 data->inactive_msec = 8420 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8421 if (stats[NL80211_STA_INFO_RX_BYTES]) 8422 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8423 if (stats[NL80211_STA_INFO_TX_BYTES]) 8424 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8425 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8426 data->rx_packets = 8427 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8428 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8429 data->tx_packets = 8430 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8431 if (stats[NL80211_STA_INFO_TX_FAILED]) 8432 data->tx_retry_failed = 8433 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8434 8435 return NL_SKIP; 8436} 8437 8438static int i802_read_sta_data(struct i802_bss *bss, 8439 struct hostap_sta_driver_data *data, 8440 const u8 *addr) 8441{ 8442 struct wpa_driver_nl80211_data *drv = bss->drv; 8443 struct nl_msg *msg; 8444 8445 os_memset(data, 0, sizeof(*data)); 8446 msg = nlmsg_alloc(); 8447 if (!msg) 8448 return -ENOMEM; 8449 8450 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8451 8452 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8453 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8454 8455 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8456 nla_put_failure: 8457 nlmsg_free(msg); 8458 return -ENOBUFS; 8459} 8460 8461 8462#if defined(HOSTAPD) || defined(CONFIG_AP) 8463 8464static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8465 int cw_min, int cw_max, int burst_time) 8466{ 8467 struct i802_bss *bss = priv; 8468 struct wpa_driver_nl80211_data *drv = bss->drv; 8469 struct nl_msg *msg; 8470 struct nlattr *txq, *params; 8471 8472 msg = nlmsg_alloc(); 8473 if (!msg) 8474 return -1; 8475 8476 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8477 8478 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8479 8480 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8481 if (!txq) 8482 goto nla_put_failure; 8483 8484 /* We are only sending parameters for a single TXQ at a time */ 8485 params = nla_nest_start(msg, 1); 8486 if (!params) 8487 goto nla_put_failure; 8488 8489 switch (queue) { 8490 case 0: 8491 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8492 break; 8493 case 1: 8494 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8495 break; 8496 case 2: 8497 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8498 break; 8499 case 3: 8500 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8501 break; 8502 } 8503 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8504 * 32 usec, so need to convert the value here. */ 8505 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8506 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8507 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8508 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8509 8510 nla_nest_end(msg, params); 8511 8512 nla_nest_end(msg, txq); 8513 8514 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8515 return 0; 8516 msg = NULL; 8517 nla_put_failure: 8518 nlmsg_free(msg); 8519 return -1; 8520} 8521 8522 8523static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8524 const char *ifname, int vlan_id) 8525{ 8526 struct wpa_driver_nl80211_data *drv = bss->drv; 8527 struct nl_msg *msg; 8528 int ret = -ENOBUFS; 8529 8530 msg = nlmsg_alloc(); 8531 if (!msg) 8532 return -ENOMEM; 8533 8534 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8535 8536 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8537 if_nametoindex(bss->ifname)); 8538 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8539 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8540 if_nametoindex(ifname)); 8541 8542 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8543 msg = NULL; 8544 if (ret < 0) { 8545 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8546 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8547 MAC2STR(addr), ifname, vlan_id, ret, 8548 strerror(-ret)); 8549 } 8550 nla_put_failure: 8551 nlmsg_free(msg); 8552 return ret; 8553} 8554 8555 8556static int i802_get_inact_sec(void *priv, const u8 *addr) 8557{ 8558 struct hostap_sta_driver_data data; 8559 int ret; 8560 8561 data.inactive_msec = (unsigned long) -1; 8562 ret = i802_read_sta_data(priv, &data, addr); 8563 if (ret || data.inactive_msec == (unsigned long) -1) 8564 return -1; 8565 return data.inactive_msec / 1000; 8566} 8567 8568 8569static int i802_sta_clear_stats(void *priv, const u8 *addr) 8570{ 8571#if 0 8572 /* TODO */ 8573#endif 8574 return 0; 8575} 8576 8577 8578static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8579 int reason) 8580{ 8581 struct i802_bss *bss = priv; 8582 struct wpa_driver_nl80211_data *drv = bss->drv; 8583 struct ieee80211_mgmt mgmt; 8584 8585 if (drv->device_ap_sme) 8586 return wpa_driver_nl80211_sta_remove(bss, addr); 8587 8588 memset(&mgmt, 0, sizeof(mgmt)); 8589 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8590 WLAN_FC_STYPE_DEAUTH); 8591 memcpy(mgmt.da, addr, ETH_ALEN); 8592 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8593 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8594 mgmt.u.deauth.reason_code = host_to_le16(reason); 8595 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8596 IEEE80211_HDRLEN + 8597 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8598 0); 8599} 8600 8601 8602static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8603 int reason) 8604{ 8605 struct i802_bss *bss = priv; 8606 struct wpa_driver_nl80211_data *drv = bss->drv; 8607 struct ieee80211_mgmt mgmt; 8608 8609 if (drv->device_ap_sme) 8610 return wpa_driver_nl80211_sta_remove(bss, addr); 8611 8612 memset(&mgmt, 0, sizeof(mgmt)); 8613 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8614 WLAN_FC_STYPE_DISASSOC); 8615 memcpy(mgmt.da, addr, ETH_ALEN); 8616 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8617 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8618 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8619 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8620 IEEE80211_HDRLEN + 8621 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8622 0); 8623} 8624 8625#endif /* HOSTAPD || CONFIG_AP */ 8626 8627#ifdef HOSTAPD 8628 8629static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8630{ 8631 int i; 8632 int *old; 8633 8634 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8635 ifidx); 8636 for (i = 0; i < drv->num_if_indices; i++) { 8637 if (drv->if_indices[i] == 0) { 8638 drv->if_indices[i] = ifidx; 8639 return; 8640 } 8641 } 8642 8643 if (drv->if_indices != drv->default_if_indices) 8644 old = drv->if_indices; 8645 else 8646 old = NULL; 8647 8648 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8649 sizeof(int)); 8650 if (!drv->if_indices) { 8651 if (!old) 8652 drv->if_indices = drv->default_if_indices; 8653 else 8654 drv->if_indices = old; 8655 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8656 "interfaces"); 8657 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8658 return; 8659 } else if (!old) 8660 os_memcpy(drv->if_indices, drv->default_if_indices, 8661 sizeof(drv->default_if_indices)); 8662 drv->if_indices[drv->num_if_indices] = ifidx; 8663 drv->num_if_indices++; 8664} 8665 8666 8667static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8668{ 8669 int i; 8670 8671 for (i = 0; i < drv->num_if_indices; i++) { 8672 if (drv->if_indices[i] == ifidx) { 8673 drv->if_indices[i] = 0; 8674 break; 8675 } 8676 } 8677} 8678 8679 8680static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8681{ 8682 int i; 8683 8684 for (i = 0; i < drv->num_if_indices; i++) 8685 if (drv->if_indices[i] == ifidx) 8686 return 1; 8687 8688 return 0; 8689} 8690 8691 8692static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8693 const char *bridge_ifname) 8694{ 8695 struct i802_bss *bss = priv; 8696 struct wpa_driver_nl80211_data *drv = bss->drv; 8697 char name[IFNAMSIZ + 1]; 8698 8699 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8700 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8701 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8702 if (val) { 8703 if (!if_nametoindex(name)) { 8704 if (nl80211_create_iface(drv, name, 8705 NL80211_IFTYPE_AP_VLAN, 8706 bss->addr, 1, NULL, NULL) < 0) 8707 return -1; 8708 if (bridge_ifname && 8709 linux_br_add_if(drv->global->ioctl_sock, 8710 bridge_ifname, name) < 0) 8711 return -1; 8712 } 8713 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8714 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8715 "interface %s up", name); 8716 } 8717 return i802_set_sta_vlan(priv, addr, name, 0); 8718 } else { 8719 if (bridge_ifname) 8720 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8721 name); 8722 8723 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8724 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8725 name); 8726 } 8727} 8728 8729 8730static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8731{ 8732 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8733 struct sockaddr_ll lladdr; 8734 unsigned char buf[3000]; 8735 int len; 8736 socklen_t fromlen = sizeof(lladdr); 8737 8738 len = recvfrom(sock, buf, sizeof(buf), 0, 8739 (struct sockaddr *)&lladdr, &fromlen); 8740 if (len < 0) { 8741 perror("recv"); 8742 return; 8743 } 8744 8745 if (have_ifidx(drv, lladdr.sll_ifindex)) 8746 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8747} 8748 8749 8750static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8751 struct i802_bss *bss, 8752 const char *brname, const char *ifname) 8753{ 8754 int ifindex; 8755 char in_br[IFNAMSIZ]; 8756 8757 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8758 ifindex = if_nametoindex(brname); 8759 if (ifindex == 0) { 8760 /* 8761 * Bridge was configured, but the bridge device does 8762 * not exist. Try to add it now. 8763 */ 8764 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8765 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8766 "bridge interface %s: %s", 8767 brname, strerror(errno)); 8768 return -1; 8769 } 8770 bss->added_bridge = 1; 8771 add_ifidx(drv, if_nametoindex(brname)); 8772 } 8773 8774 if (linux_br_get(in_br, ifname) == 0) { 8775 if (os_strcmp(in_br, brname) == 0) 8776 return 0; /* already in the bridge */ 8777 8778 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8779 "bridge %s", ifname, in_br); 8780 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8781 0) { 8782 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8783 "remove interface %s from bridge " 8784 "%s: %s", 8785 ifname, brname, strerror(errno)); 8786 return -1; 8787 } 8788 } 8789 8790 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8791 ifname, brname); 8792 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8793 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8794 "into bridge %s: %s", 8795 ifname, brname, strerror(errno)); 8796 return -1; 8797 } 8798 bss->added_if_into_bridge = 1; 8799 8800 return 0; 8801} 8802 8803 8804static void *i802_init(struct hostapd_data *hapd, 8805 struct wpa_init_params *params) 8806{ 8807 struct wpa_driver_nl80211_data *drv; 8808 struct i802_bss *bss; 8809 size_t i; 8810 char brname[IFNAMSIZ]; 8811 int ifindex, br_ifindex; 8812 int br_added = 0; 8813 8814 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8815 params->global_priv); 8816 if (bss == NULL) 8817 return NULL; 8818 8819 drv = bss->drv; 8820 drv->nlmode = NL80211_IFTYPE_AP; 8821 drv->eapol_sock = -1; 8822 8823 if (linux_br_get(brname, params->ifname) == 0) { 8824 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8825 params->ifname, brname); 8826 br_ifindex = if_nametoindex(brname); 8827 } else { 8828 brname[0] = '\0'; 8829 br_ifindex = 0; 8830 } 8831 8832 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8833 drv->if_indices = drv->default_if_indices; 8834 for (i = 0; i < params->num_bridge; i++) { 8835 if (params->bridge[i]) { 8836 ifindex = if_nametoindex(params->bridge[i]); 8837 if (ifindex) 8838 add_ifidx(drv, ifindex); 8839 if (ifindex == br_ifindex) 8840 br_added = 1; 8841 } 8842 } 8843 if (!br_added && br_ifindex && 8844 (params->num_bridge == 0 || !params->bridge[0])) 8845 add_ifidx(drv, br_ifindex); 8846 8847 /* start listening for EAPOL on the default AP interface */ 8848 add_ifidx(drv, drv->ifindex); 8849 8850 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8851 goto failed; 8852 8853 if (params->bssid) { 8854 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8855 params->bssid)) 8856 goto failed; 8857 } 8858 8859 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8860 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8861 "into AP mode", bss->ifname); 8862 goto failed; 8863 } 8864 8865 if (params->num_bridge && params->bridge[0] && 8866 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8867 goto failed; 8868 8869 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8870 goto failed; 8871 8872 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8873 if (drv->eapol_sock < 0) { 8874 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8875 goto failed; 8876 } 8877 8878 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8879 { 8880 printf("Could not register read socket for eapol\n"); 8881 goto failed; 8882 } 8883 8884 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8885 params->own_addr)) 8886 goto failed; 8887 8888 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8889 8890 return bss; 8891 8892failed: 8893 wpa_driver_nl80211_deinit(bss); 8894 return NULL; 8895} 8896 8897 8898static void i802_deinit(void *priv) 8899{ 8900 struct i802_bss *bss = priv; 8901 wpa_driver_nl80211_deinit(bss); 8902} 8903 8904#endif /* HOSTAPD */ 8905 8906 8907static enum nl80211_iftype wpa_driver_nl80211_if_type( 8908 enum wpa_driver_if_type type) 8909{ 8910 switch (type) { 8911 case WPA_IF_STATION: 8912 return NL80211_IFTYPE_STATION; 8913 case WPA_IF_P2P_CLIENT: 8914 case WPA_IF_P2P_GROUP: 8915 return NL80211_IFTYPE_P2P_CLIENT; 8916 case WPA_IF_AP_VLAN: 8917 return NL80211_IFTYPE_AP_VLAN; 8918 case WPA_IF_AP_BSS: 8919 return NL80211_IFTYPE_AP; 8920 case WPA_IF_P2P_GO: 8921 return NL80211_IFTYPE_P2P_GO; 8922 case WPA_IF_P2P_DEVICE: 8923 return NL80211_IFTYPE_P2P_DEVICE; 8924 } 8925 return -1; 8926} 8927 8928 8929#ifdef CONFIG_P2P 8930 8931static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8932{ 8933 struct wpa_driver_nl80211_data *drv; 8934 dl_list_for_each(drv, &global->interfaces, 8935 struct wpa_driver_nl80211_data, list) { 8936 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8937 return 1; 8938 } 8939 return 0; 8940} 8941 8942 8943static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8944 u8 *new_addr) 8945{ 8946 unsigned int idx; 8947 8948 if (!drv->global) 8949 return -1; 8950 8951 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8952 for (idx = 0; idx < 64; idx++) { 8953 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8954 new_addr[0] ^= idx << 2; 8955 if (!nl80211_addr_in_use(drv->global, new_addr)) 8956 break; 8957 } 8958 if (idx == 64) 8959 return -1; 8960 8961 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8962 MACSTR, MAC2STR(new_addr)); 8963 8964 return 0; 8965} 8966 8967#endif /* CONFIG_P2P */ 8968 8969 8970struct wdev_info { 8971 u64 wdev_id; 8972 int wdev_id_set; 8973 u8 macaddr[ETH_ALEN]; 8974}; 8975 8976static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 8977{ 8978 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8979 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8980 struct wdev_info *wi = arg; 8981 8982 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8983 genlmsg_attrlen(gnlh, 0), NULL); 8984 if (tb[NL80211_ATTR_WDEV]) { 8985 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 8986 wi->wdev_id_set = 1; 8987 } 8988 8989 if (tb[NL80211_ATTR_MAC]) 8990 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 8991 ETH_ALEN); 8992 8993 return NL_SKIP; 8994} 8995 8996 8997static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 8998 const char *ifname, const u8 *addr, 8999 void *bss_ctx, void **drv_priv, 9000 char *force_ifname, u8 *if_addr, 9001 const char *bridge) 9002{ 9003 enum nl80211_iftype nlmode; 9004 struct i802_bss *bss = priv; 9005 struct wpa_driver_nl80211_data *drv = bss->drv; 9006 int ifidx; 9007#ifdef HOSTAPD 9008 struct i802_bss *new_bss = NULL; 9009 9010 if (type == WPA_IF_AP_BSS) { 9011 new_bss = os_zalloc(sizeof(*new_bss)); 9012 if (new_bss == NULL) 9013 return -1; 9014 } 9015#endif /* HOSTAPD */ 9016 9017 if (addr) 9018 os_memcpy(if_addr, addr, ETH_ALEN); 9019 nlmode = wpa_driver_nl80211_if_type(type); 9020 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9021 struct wdev_info p2pdev_info; 9022 9023 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9024 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9025 0, nl80211_wdev_handler, 9026 &p2pdev_info); 9027 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9028 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9029 ifname); 9030 return -1; 9031 } 9032 9033 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9034 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9035 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9036 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9037 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9038 ifname, 9039 (long long unsigned int) p2pdev_info.wdev_id); 9040 } else { 9041 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9042 0, NULL, NULL); 9043 if (ifidx < 0) { 9044#ifdef HOSTAPD 9045 os_free(new_bss); 9046#endif /* HOSTAPD */ 9047 return -1; 9048 } 9049 } 9050 9051 if (!addr) { 9052 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9053 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9054 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9055 bss->ifname, if_addr) < 0) { 9056 nl80211_remove_iface(drv, ifidx); 9057 return -1; 9058 } 9059 } 9060 9061#ifdef CONFIG_P2P 9062 if (!addr && 9063 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9064 type == WPA_IF_P2P_GO)) { 9065 /* Enforce unique P2P Interface Address */ 9066 u8 new_addr[ETH_ALEN]; 9067 9068 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9069 new_addr) < 0) { 9070 nl80211_remove_iface(drv, ifidx); 9071 return -1; 9072 } 9073 if (nl80211_addr_in_use(drv->global, new_addr)) { 9074 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9075 "for P2P group interface"); 9076 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9077 nl80211_remove_iface(drv, ifidx); 9078 return -1; 9079 } 9080 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9081 new_addr) < 0) { 9082 nl80211_remove_iface(drv, ifidx); 9083 return -1; 9084 } 9085 } 9086 os_memcpy(if_addr, new_addr, ETH_ALEN); 9087 } 9088#endif /* CONFIG_P2P */ 9089 9090#ifdef HOSTAPD 9091 if (bridge && 9092 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9093 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9094 "interface %s to a bridge %s", ifname, bridge); 9095 nl80211_remove_iface(drv, ifidx); 9096 os_free(new_bss); 9097 return -1; 9098 } 9099 9100 if (type == WPA_IF_AP_BSS) { 9101 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9102 { 9103 nl80211_remove_iface(drv, ifidx); 9104 os_free(new_bss); 9105 return -1; 9106 } 9107 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9108 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9109 new_bss->ifindex = ifidx; 9110 new_bss->drv = drv; 9111 new_bss->next = drv->first_bss.next; 9112 new_bss->freq = drv->first_bss.freq; 9113 new_bss->ctx = bss_ctx; 9114 drv->first_bss.next = new_bss; 9115 if (drv_priv) 9116 *drv_priv = new_bss; 9117 nl80211_init_bss(new_bss); 9118 9119 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9120 if (nl80211_setup_ap(new_bss)) 9121 return -1; 9122 } 9123#endif /* HOSTAPD */ 9124 9125 if (drv->global) 9126 drv->global->if_add_ifindex = ifidx; 9127 9128 return 0; 9129} 9130 9131 9132static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9133 enum wpa_driver_if_type type, 9134 const char *ifname) 9135{ 9136 struct wpa_driver_nl80211_data *drv = bss->drv; 9137 int ifindex = if_nametoindex(ifname); 9138 9139 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9140 __func__, type, ifname, ifindex); 9141 if (ifindex <= 0) 9142 return -1; 9143 9144 nl80211_remove_iface(drv, ifindex); 9145 9146#ifdef HOSTAPD 9147 if (type != WPA_IF_AP_BSS) 9148 return 0; 9149 9150 if (bss->added_if_into_bridge) { 9151 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9152 bss->ifname) < 0) 9153 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9154 "interface %s from bridge %s: %s", 9155 bss->ifname, bss->brname, strerror(errno)); 9156 } 9157 if (bss->added_bridge) { 9158 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9159 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9160 "bridge %s: %s", 9161 bss->brname, strerror(errno)); 9162 } 9163 9164 if (bss != &drv->first_bss) { 9165 struct i802_bss *tbss; 9166 9167 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9168 if (tbss->next == bss) { 9169 tbss->next = bss->next; 9170 /* Unsubscribe management frames */ 9171 nl80211_teardown_ap(bss); 9172 nl80211_destroy_bss(bss); 9173 os_free(bss); 9174 bss = NULL; 9175 break; 9176 } 9177 } 9178 if (bss) 9179 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9180 "BSS %p in the list", __func__, bss); 9181 } 9182#endif /* HOSTAPD */ 9183 9184 return 0; 9185} 9186 9187 9188static int cookie_handler(struct nl_msg *msg, void *arg) 9189{ 9190 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9191 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9192 u64 *cookie = arg; 9193 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9194 genlmsg_attrlen(gnlh, 0), NULL); 9195 if (tb[NL80211_ATTR_COOKIE]) 9196 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9197 return NL_SKIP; 9198} 9199 9200 9201static int nl80211_send_frame_cmd(struct i802_bss *bss, 9202 unsigned int freq, unsigned int wait, 9203 const u8 *buf, size_t buf_len, 9204 u64 *cookie_out, int no_cck, int no_ack, 9205 int offchanok) 9206{ 9207 struct wpa_driver_nl80211_data *drv = bss->drv; 9208 struct nl_msg *msg; 9209 u64 cookie; 9210 int ret = -1; 9211 9212 msg = nlmsg_alloc(); 9213 if (!msg) 9214 return -1; 9215 9216 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9217 "no_ack=%d offchanok=%d", 9218 freq, wait, no_cck, no_ack, offchanok); 9219 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9220 9221 if (nl80211_set_iface_id(msg, bss) < 0) 9222 goto nla_put_failure; 9223 9224 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9225 if (wait) 9226 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9227 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9228 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9229 if (no_cck) 9230 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9231 if (no_ack) 9232 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9233 9234 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9235 9236 cookie = 0; 9237 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9238 msg = NULL; 9239 if (ret) { 9240 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9241 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9242 freq, wait); 9243 goto nla_put_failure; 9244 } 9245 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9246 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9247 (long long unsigned int) cookie); 9248 9249 if (cookie_out) 9250 *cookie_out = no_ack ? (u64) -1 : cookie; 9251 9252nla_put_failure: 9253 nlmsg_free(msg); 9254 return ret; 9255} 9256 9257 9258static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9259 unsigned int freq, 9260 unsigned int wait_time, 9261 const u8 *dst, const u8 *src, 9262 const u8 *bssid, 9263 const u8 *data, size_t data_len, 9264 int no_cck) 9265{ 9266 struct wpa_driver_nl80211_data *drv = bss->drv; 9267 int ret = -1; 9268 u8 *buf; 9269 struct ieee80211_hdr *hdr; 9270 9271 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9272 "freq=%u MHz wait=%d ms no_cck=%d)", 9273 drv->ifindex, freq, wait_time, no_cck); 9274 9275 buf = os_zalloc(24 + data_len); 9276 if (buf == NULL) 9277 return ret; 9278 os_memcpy(buf + 24, data, data_len); 9279 hdr = (struct ieee80211_hdr *) buf; 9280 hdr->frame_control = 9281 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9282 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9283 os_memcpy(hdr->addr2, src, ETH_ALEN); 9284 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9285 9286 if (is_ap_interface(drv->nlmode)) 9287 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9288 0, freq, no_cck, 1, 9289 wait_time); 9290 else 9291 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9292 24 + data_len, 9293 &drv->send_action_cookie, 9294 no_cck, 0, 1); 9295 9296 os_free(buf); 9297 return ret; 9298} 9299 9300 9301static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9302{ 9303 struct i802_bss *bss = priv; 9304 struct wpa_driver_nl80211_data *drv = bss->drv; 9305 struct nl_msg *msg; 9306 int ret; 9307 9308 msg = nlmsg_alloc(); 9309 if (!msg) 9310 return; 9311 9312 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9313 (long long unsigned int) drv->send_action_cookie); 9314 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9315 9316 if (nl80211_set_iface_id(msg, bss) < 0) 9317 goto nla_put_failure; 9318 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9319 9320 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9321 msg = NULL; 9322 if (ret) 9323 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9324 "(%s)", ret, strerror(-ret)); 9325 9326 nla_put_failure: 9327 nlmsg_free(msg); 9328} 9329 9330 9331static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9332 unsigned int duration) 9333{ 9334 struct i802_bss *bss = priv; 9335 struct wpa_driver_nl80211_data *drv = bss->drv; 9336 struct nl_msg *msg; 9337 int ret; 9338 u64 cookie; 9339 9340 msg = nlmsg_alloc(); 9341 if (!msg) 9342 return -1; 9343 9344 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9345 9346 if (nl80211_set_iface_id(msg, bss) < 0) 9347 goto nla_put_failure; 9348 9349 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9350 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9351 9352 cookie = 0; 9353 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9354 msg = NULL; 9355 if (ret == 0) { 9356 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9357 "0x%llx for freq=%u MHz duration=%u", 9358 (long long unsigned int) cookie, freq, duration); 9359 drv->remain_on_chan_cookie = cookie; 9360 drv->pending_remain_on_chan = 1; 9361 return 0; 9362 } 9363 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9364 "(freq=%d duration=%u): %d (%s)", 9365 freq, duration, ret, strerror(-ret)); 9366nla_put_failure: 9367 nlmsg_free(msg); 9368 return -1; 9369} 9370 9371 9372static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9373{ 9374 struct i802_bss *bss = priv; 9375 struct wpa_driver_nl80211_data *drv = bss->drv; 9376 struct nl_msg *msg; 9377 int ret; 9378 9379 if (!drv->pending_remain_on_chan) { 9380 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9381 "to cancel"); 9382 return -1; 9383 } 9384 9385 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9386 "0x%llx", 9387 (long long unsigned int) drv->remain_on_chan_cookie); 9388 9389 msg = nlmsg_alloc(); 9390 if (!msg) 9391 return -1; 9392 9393 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9394 9395 if (nl80211_set_iface_id(msg, bss) < 0) 9396 goto nla_put_failure; 9397 9398 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9399 9400 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9401 msg = NULL; 9402 if (ret == 0) 9403 return 0; 9404 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9405 "%d (%s)", ret, strerror(-ret)); 9406nla_put_failure: 9407 nlmsg_free(msg); 9408 return -1; 9409} 9410 9411 9412static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9413{ 9414 struct wpa_driver_nl80211_data *drv = bss->drv; 9415 9416 if (!report) { 9417 if (bss->nl_preq && drv->device_ap_sme && 9418 is_ap_interface(drv->nlmode)) { 9419 /* 9420 * Do not disable Probe Request reporting that was 9421 * enabled in nl80211_setup_ap(). 9422 */ 9423 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9424 "Probe Request reporting nl_preq=%p while " 9425 "in AP mode", bss->nl_preq); 9426 } else if (bss->nl_preq) { 9427 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9428 "reporting nl_preq=%p", bss->nl_preq); 9429 eloop_unregister_read_sock( 9430 nl_socket_get_fd(bss->nl_preq)); 9431 nl_destroy_handles(&bss->nl_preq); 9432 } 9433 return 0; 9434 } 9435 9436 if (bss->nl_preq) { 9437 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9438 "already on! nl_preq=%p", bss->nl_preq); 9439 return 0; 9440 } 9441 9442 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9443 if (bss->nl_preq == NULL) 9444 return -1; 9445 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9446 "reporting nl_preq=%p", bss->nl_preq); 9447 9448 if (nl80211_register_frame(bss, bss->nl_preq, 9449 (WLAN_FC_TYPE_MGMT << 2) | 9450 (WLAN_FC_STYPE_PROBE_REQ << 4), 9451 NULL, 0) < 0) 9452 goto out_err; 9453 9454 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9455 wpa_driver_nl80211_event_receive, bss->nl_cb, 9456 bss->nl_preq); 9457 9458 return 0; 9459 9460 out_err: 9461 nl_destroy_handles(&bss->nl_preq); 9462 return -1; 9463} 9464 9465 9466static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9467 int ifindex, int disabled) 9468{ 9469 struct nl_msg *msg; 9470 struct nlattr *bands, *band; 9471 int ret; 9472 9473 msg = nlmsg_alloc(); 9474 if (!msg) 9475 return -1; 9476 9477 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9478 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9479 9480 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9481 if (!bands) 9482 goto nla_put_failure; 9483 9484 /* 9485 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9486 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9487 * rates. All 5 GHz rates are left enabled. 9488 */ 9489 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9490 if (!band) 9491 goto nla_put_failure; 9492 if (disabled) { 9493 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9494 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9495 } 9496 nla_nest_end(msg, band); 9497 9498 nla_nest_end(msg, bands); 9499 9500 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9501 msg = NULL; 9502 if (ret) { 9503 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9504 "(%s)", ret, strerror(-ret)); 9505 } else 9506 drv->disabled_11b_rates = disabled; 9507 9508 return ret; 9509 9510nla_put_failure: 9511 nlmsg_free(msg); 9512 return -1; 9513} 9514 9515 9516static int wpa_driver_nl80211_deinit_ap(void *priv) 9517{ 9518 struct i802_bss *bss = priv; 9519 struct wpa_driver_nl80211_data *drv = bss->drv; 9520 if (!is_ap_interface(drv->nlmode)) 9521 return -1; 9522 wpa_driver_nl80211_del_beacon(drv); 9523 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9524} 9525 9526 9527static int wpa_driver_nl80211_stop_ap(void *priv) 9528{ 9529 struct i802_bss *bss = priv; 9530 struct wpa_driver_nl80211_data *drv = bss->drv; 9531 if (!is_ap_interface(drv->nlmode)) 9532 return -1; 9533 wpa_driver_nl80211_del_beacon(drv); 9534 bss->beacon_set = 0; 9535 return 0; 9536} 9537 9538 9539static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9540{ 9541 struct i802_bss *bss = priv; 9542 struct wpa_driver_nl80211_data *drv = bss->drv; 9543 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9544 return -1; 9545 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9546} 9547 9548 9549static void wpa_driver_nl80211_resume(void *priv) 9550{ 9551 struct i802_bss *bss = priv; 9552 9553 if (i802_set_iface_flags(bss, 1)) 9554 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9555} 9556 9557 9558static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9559 const u8 *ies, size_t ies_len) 9560{ 9561 struct i802_bss *bss = priv; 9562 struct wpa_driver_nl80211_data *drv = bss->drv; 9563 int ret; 9564 u8 *data, *pos; 9565 size_t data_len; 9566 const u8 *own_addr = bss->addr; 9567 9568 if (action != 1) { 9569 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9570 "action %d", action); 9571 return -1; 9572 } 9573 9574 /* 9575 * Action frame payload: 9576 * Category[1] = 6 (Fast BSS Transition) 9577 * Action[1] = 1 (Fast BSS Transition Request) 9578 * STA Address 9579 * Target AP Address 9580 * FT IEs 9581 */ 9582 9583 data_len = 2 + 2 * ETH_ALEN + ies_len; 9584 data = os_malloc(data_len); 9585 if (data == NULL) 9586 return -1; 9587 pos = data; 9588 *pos++ = 0x06; /* FT Action category */ 9589 *pos++ = action; 9590 os_memcpy(pos, own_addr, ETH_ALEN); 9591 pos += ETH_ALEN; 9592 os_memcpy(pos, target_ap, ETH_ALEN); 9593 pos += ETH_ALEN; 9594 os_memcpy(pos, ies, ies_len); 9595 9596 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9597 drv->bssid, own_addr, drv->bssid, 9598 data, data_len, 0); 9599 os_free(data); 9600 9601 return ret; 9602} 9603 9604 9605static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9606{ 9607 struct i802_bss *bss = priv; 9608 struct wpa_driver_nl80211_data *drv = bss->drv; 9609 struct nl_msg *msg; 9610 struct nlattr *cqm; 9611 int ret = -1; 9612 9613 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9614 "hysteresis=%d", threshold, hysteresis); 9615 9616 msg = nlmsg_alloc(); 9617 if (!msg) 9618 return -1; 9619 9620 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9621 9622 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9623 9624 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9625 if (cqm == NULL) 9626 goto nla_put_failure; 9627 9628 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9629 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9630 nla_nest_end(msg, cqm); 9631 9632 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9633 msg = NULL; 9634 9635nla_put_failure: 9636 nlmsg_free(msg); 9637 return ret; 9638} 9639 9640 9641/* Converts nl80211_chan_width to a common format */ 9642static enum chan_width convert2width(int width) 9643{ 9644 switch (width) { 9645 case NL80211_CHAN_WIDTH_20_NOHT: 9646 return CHAN_WIDTH_20_NOHT; 9647 case NL80211_CHAN_WIDTH_20: 9648 return CHAN_WIDTH_20; 9649 case NL80211_CHAN_WIDTH_40: 9650 return CHAN_WIDTH_40; 9651 case NL80211_CHAN_WIDTH_80: 9652 return CHAN_WIDTH_80; 9653 case NL80211_CHAN_WIDTH_80P80: 9654 return CHAN_WIDTH_80P80; 9655 case NL80211_CHAN_WIDTH_160: 9656 return CHAN_WIDTH_160; 9657 } 9658 return CHAN_WIDTH_UNKNOWN; 9659} 9660 9661 9662static int get_channel_width(struct nl_msg *msg, void *arg) 9663{ 9664 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9665 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9666 struct wpa_signal_info *sig_change = arg; 9667 9668 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9669 genlmsg_attrlen(gnlh, 0), NULL); 9670 9671 sig_change->center_frq1 = -1; 9672 sig_change->center_frq2 = -1; 9673 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9674 9675 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9676 sig_change->chanwidth = convert2width( 9677 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9678 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9679 sig_change->center_frq1 = 9680 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9681 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9682 sig_change->center_frq2 = 9683 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9684 } 9685 9686 return NL_SKIP; 9687} 9688 9689 9690static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9691 struct wpa_signal_info *sig) 9692{ 9693 struct nl_msg *msg; 9694 9695 msg = nlmsg_alloc(); 9696 if (!msg) 9697 return -ENOMEM; 9698 9699 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9701 9702 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9703 9704nla_put_failure: 9705 nlmsg_free(msg); 9706 return -ENOBUFS; 9707} 9708 9709 9710static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9711{ 9712 struct i802_bss *bss = priv; 9713 struct wpa_driver_nl80211_data *drv = bss->drv; 9714 int res; 9715 9716 os_memset(si, 0, sizeof(*si)); 9717 res = nl80211_get_link_signal(drv, si); 9718 if (res != 0) 9719 return res; 9720 9721 res = nl80211_get_channel_width(drv, si); 9722 if (res != 0) 9723 return res; 9724 9725 return nl80211_get_link_noise(drv, si); 9726} 9727 9728 9729static int wpa_driver_nl80211_shared_freq(void *priv) 9730{ 9731 struct i802_bss *bss = priv; 9732 struct wpa_driver_nl80211_data *drv = bss->drv; 9733 struct wpa_driver_nl80211_data *driver; 9734 int freq = 0; 9735 9736 /* 9737 * If the same PHY is in connected state with some other interface, 9738 * then retrieve the assoc freq. 9739 */ 9740 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9741 drv->phyname); 9742 9743 dl_list_for_each(driver, &drv->global->interfaces, 9744 struct wpa_driver_nl80211_data, list) { 9745 if (drv == driver || 9746 os_strcmp(drv->phyname, driver->phyname) != 0 || 9747#ifdef ANDROID_P2P 9748 (!driver->associated && !is_ap_interface(driver->nlmode))) 9749#else 9750 !driver->associated) 9751#endif 9752 continue; 9753 9754 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9755 MACSTR, 9756 driver->phyname, driver->first_bss.ifname, 9757 MAC2STR(driver->first_bss.addr)); 9758 if (is_ap_interface(driver->nlmode)) 9759 freq = driver->first_bss.freq; 9760 else 9761 freq = nl80211_get_assoc_freq(driver); 9762 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9763 drv->phyname, freq); 9764 } 9765 9766 if (!freq) 9767 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9768 "PHY (%s) in associated state", drv->phyname); 9769 9770 return freq; 9771} 9772 9773 9774static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9775 int encrypt) 9776{ 9777 struct i802_bss *bss = priv; 9778 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9779 0, 0, 0, 0); 9780} 9781 9782 9783static int nl80211_set_param(void *priv, const char *param) 9784{ 9785 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9786 if (param == NULL) 9787 return 0; 9788 9789#ifdef CONFIG_P2P 9790 if (os_strstr(param, "use_p2p_group_interface=1")) { 9791 struct i802_bss *bss = priv; 9792 struct wpa_driver_nl80211_data *drv = bss->drv; 9793 9794 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9795 "interface"); 9796 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9797 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9798 } 9799 9800 if (os_strstr(param, "p2p_device=1")) { 9801 struct i802_bss *bss = priv; 9802 struct wpa_driver_nl80211_data *drv = bss->drv; 9803 drv->allow_p2p_device = 1; 9804 } 9805 9806#ifdef ANDROID_P2P 9807 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9808 struct i802_bss *bss = priv; 9809 struct wpa_driver_nl80211_data *drv = bss->drv; 9810 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9811 "concurrency"); 9812 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 9813 } 9814#endif 9815#endif /* CONFIG_P2P */ 9816 9817 return 0; 9818} 9819 9820 9821static void * nl80211_global_init(void) 9822{ 9823 struct nl80211_global *global; 9824 struct netlink_config *cfg; 9825 9826 global = os_zalloc(sizeof(*global)); 9827 if (global == NULL) 9828 return NULL; 9829 global->ioctl_sock = -1; 9830 dl_list_init(&global->interfaces); 9831 global->if_add_ifindex = -1; 9832 9833 cfg = os_zalloc(sizeof(*cfg)); 9834 if (cfg == NULL) 9835 goto err; 9836 9837 cfg->ctx = global; 9838 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9839 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9840 global->netlink = netlink_init(cfg); 9841 if (global->netlink == NULL) { 9842 os_free(cfg); 9843 goto err; 9844 } 9845 9846 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9847 goto err; 9848 9849 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9850 if (global->ioctl_sock < 0) { 9851 perror("socket(PF_INET,SOCK_DGRAM)"); 9852 goto err; 9853 } 9854 9855 return global; 9856 9857err: 9858 nl80211_global_deinit(global); 9859 return NULL; 9860} 9861 9862 9863static void nl80211_global_deinit(void *priv) 9864{ 9865 struct nl80211_global *global = priv; 9866 if (global == NULL) 9867 return; 9868 if (!dl_list_empty(&global->interfaces)) { 9869 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9870 "nl80211_global_deinit", 9871 dl_list_len(&global->interfaces)); 9872 } 9873 9874 if (global->netlink) 9875 netlink_deinit(global->netlink); 9876 9877 nl_destroy_handles(&global->nl); 9878 9879 if (global->nl_event) { 9880 eloop_unregister_read_sock( 9881 nl_socket_get_fd(global->nl_event)); 9882 nl_destroy_handles(&global->nl_event); 9883 } 9884 9885 nl_cb_put(global->nl_cb); 9886 9887 if (global->ioctl_sock >= 0) 9888 close(global->ioctl_sock); 9889 9890 os_free(global); 9891} 9892 9893 9894static const char * nl80211_get_radio_name(void *priv) 9895{ 9896 struct i802_bss *bss = priv; 9897 struct wpa_driver_nl80211_data *drv = bss->drv; 9898 return drv->phyname; 9899} 9900 9901 9902static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9903 const u8 *pmkid) 9904{ 9905 struct nl_msg *msg; 9906 9907 msg = nlmsg_alloc(); 9908 if (!msg) 9909 return -ENOMEM; 9910 9911 nl80211_cmd(bss->drv, msg, 0, cmd); 9912 9913 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9914 if (pmkid) 9915 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9916 if (bssid) 9917 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9918 9919 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9920 nla_put_failure: 9921 nlmsg_free(msg); 9922 return -ENOBUFS; 9923} 9924 9925 9926static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9927{ 9928 struct i802_bss *bss = priv; 9929 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9930 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9931} 9932 9933 9934static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9935{ 9936 struct i802_bss *bss = priv; 9937 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9938 MAC2STR(bssid)); 9939 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9940} 9941 9942 9943static int nl80211_flush_pmkid(void *priv) 9944{ 9945 struct i802_bss *bss = priv; 9946 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9947 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9948} 9949 9950 9951static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9952 const u8 *replay_ctr) 9953{ 9954 struct i802_bss *bss = priv; 9955 struct wpa_driver_nl80211_data *drv = bss->drv; 9956 struct nlattr *replay_nested; 9957 struct nl_msg *msg; 9958 9959 msg = nlmsg_alloc(); 9960 if (!msg) 9961 return; 9962 9963 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 9964 9965 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9966 9967 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 9968 if (!replay_nested) 9969 goto nla_put_failure; 9970 9971 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 9972 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 9973 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 9974 replay_ctr); 9975 9976 nla_nest_end(msg, replay_nested); 9977 9978 send_and_recv_msgs(drv, msg, NULL, NULL); 9979 return; 9980 nla_put_failure: 9981 nlmsg_free(msg); 9982} 9983 9984 9985static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 9986 const u8 *addr, int qos) 9987{ 9988 /* send data frame to poll STA and check whether 9989 * this frame is ACKed */ 9990 struct { 9991 struct ieee80211_hdr hdr; 9992 u16 qos_ctl; 9993 } STRUCT_PACKED nulldata; 9994 size_t size; 9995 9996 /* Send data frame to poll STA and check whether this frame is ACKed */ 9997 9998 os_memset(&nulldata, 0, sizeof(nulldata)); 9999 10000 if (qos) { 10001 nulldata.hdr.frame_control = 10002 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10003 WLAN_FC_STYPE_QOS_NULL); 10004 size = sizeof(nulldata); 10005 } else { 10006 nulldata.hdr.frame_control = 10007 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10008 WLAN_FC_STYPE_NULLFUNC); 10009 size = sizeof(struct ieee80211_hdr); 10010 } 10011 10012 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10013 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10014 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10015 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10016 10017 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10018 0, 0) < 0) 10019 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10020 "send poll frame"); 10021} 10022 10023static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10024 int qos) 10025{ 10026 struct i802_bss *bss = priv; 10027 struct wpa_driver_nl80211_data *drv = bss->drv; 10028 struct nl_msg *msg; 10029 10030 if (!drv->poll_command_supported) { 10031 nl80211_send_null_frame(bss, own_addr, addr, qos); 10032 return; 10033 } 10034 10035 msg = nlmsg_alloc(); 10036 if (!msg) 10037 return; 10038 10039 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10040 10041 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10042 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10043 10044 send_and_recv_msgs(drv, msg, NULL, NULL); 10045 return; 10046 nla_put_failure: 10047 nlmsg_free(msg); 10048} 10049 10050 10051static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10052{ 10053 struct nl_msg *msg; 10054 10055 msg = nlmsg_alloc(); 10056 if (!msg) 10057 return -ENOMEM; 10058 10059 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10060 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10061 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10062 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10063 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10064nla_put_failure: 10065 nlmsg_free(msg); 10066 return -ENOBUFS; 10067} 10068 10069 10070static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10071 int ctwindow) 10072{ 10073 struct i802_bss *bss = priv; 10074 10075 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10076 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10077 10078 if (opp_ps != -1 || ctwindow != -1) 10079#ifdef ANDROID_P2P 10080 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10081#else 10082 return -1; /* Not yet supported */ 10083#endif 10084 10085 if (legacy_ps == -1) 10086 return 0; 10087 if (legacy_ps != 0 && legacy_ps != 1) 10088 return -1; /* Not yet supported */ 10089 10090 return nl80211_set_power_save(bss, legacy_ps); 10091} 10092 10093 10094static int nl80211_start_radar_detection(void *priv, int freq) 10095{ 10096 struct i802_bss *bss = priv; 10097 struct wpa_driver_nl80211_data *drv = bss->drv; 10098 struct nl_msg *msg; 10099 int ret; 10100 10101 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 10102 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10103 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10104 "detection"); 10105 return -1; 10106 } 10107 10108 msg = nlmsg_alloc(); 10109 if (!msg) 10110 return -1; 10111 10112 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10113 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10114 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10115 10116 /* only HT20 is supported at this point */ 10117 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 10118 10119 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10120 if (ret == 0) 10121 return 0; 10122 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10123 "%d (%s)", ret, strerror(-ret)); 10124nla_put_failure: 10125 return -1; 10126} 10127 10128#ifdef CONFIG_TDLS 10129 10130static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10131 u8 dialog_token, u16 status_code, 10132 const u8 *buf, size_t len) 10133{ 10134 struct i802_bss *bss = priv; 10135 struct wpa_driver_nl80211_data *drv = bss->drv; 10136 struct nl_msg *msg; 10137 10138 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10139 return -EOPNOTSUPP; 10140 10141 if (!dst) 10142 return -EINVAL; 10143 10144 msg = nlmsg_alloc(); 10145 if (!msg) 10146 return -ENOMEM; 10147 10148 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10149 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10150 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10151 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10152 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10153 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10154 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10155 10156 return send_and_recv_msgs(drv, msg, NULL, NULL); 10157 10158nla_put_failure: 10159 nlmsg_free(msg); 10160 return -ENOBUFS; 10161} 10162 10163 10164static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10165{ 10166 struct i802_bss *bss = priv; 10167 struct wpa_driver_nl80211_data *drv = bss->drv; 10168 struct nl_msg *msg; 10169 enum nl80211_tdls_operation nl80211_oper; 10170 10171 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10172 return -EOPNOTSUPP; 10173 10174 switch (oper) { 10175 case TDLS_DISCOVERY_REQ: 10176 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10177 break; 10178 case TDLS_SETUP: 10179 nl80211_oper = NL80211_TDLS_SETUP; 10180 break; 10181 case TDLS_TEARDOWN: 10182 nl80211_oper = NL80211_TDLS_TEARDOWN; 10183 break; 10184 case TDLS_ENABLE_LINK: 10185 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10186 break; 10187 case TDLS_DISABLE_LINK: 10188 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10189 break; 10190 case TDLS_ENABLE: 10191 return 0; 10192 case TDLS_DISABLE: 10193 return 0; 10194 default: 10195 return -EINVAL; 10196 } 10197 10198 msg = nlmsg_alloc(); 10199 if (!msg) 10200 return -ENOMEM; 10201 10202 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10203 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10205 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10206 10207 return send_and_recv_msgs(drv, msg, NULL, NULL); 10208 10209nla_put_failure: 10210 nlmsg_free(msg); 10211 return -ENOBUFS; 10212} 10213 10214#endif /* CONFIG TDLS */ 10215 10216 10217#ifdef ANDROID 10218 10219typedef struct android_wifi_priv_cmd { 10220 char *buf; 10221 int used_len; 10222 int total_len; 10223} android_wifi_priv_cmd; 10224 10225static int drv_errors = 0; 10226 10227static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10228{ 10229 drv_errors++; 10230 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10231 drv_errors = 0; 10232 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10233 } 10234} 10235 10236 10237static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10238{ 10239 struct wpa_driver_nl80211_data *drv = bss->drv; 10240 struct ifreq ifr; 10241 android_wifi_priv_cmd priv_cmd; 10242 char buf[MAX_DRV_CMD_SIZE]; 10243 int ret; 10244 10245 os_memset(&ifr, 0, sizeof(ifr)); 10246 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10247 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10248 10249 os_memset(buf, 0, sizeof(buf)); 10250 os_strlcpy(buf, cmd, sizeof(buf)); 10251 10252 priv_cmd.buf = buf; 10253 priv_cmd.used_len = sizeof(buf); 10254 priv_cmd.total_len = sizeof(buf); 10255 ifr.ifr_data = &priv_cmd; 10256 10257 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10258 if (ret < 0) { 10259 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10260 __func__); 10261 wpa_driver_send_hang_msg(drv); 10262 return ret; 10263 } 10264 10265 drv_errors = 0; 10266 return 0; 10267} 10268 10269 10270static int android_pno_start(struct i802_bss *bss, 10271 struct wpa_driver_scan_params *params) 10272{ 10273 struct wpa_driver_nl80211_data *drv = bss->drv; 10274 struct ifreq ifr; 10275 android_wifi_priv_cmd priv_cmd; 10276 int ret = 0, i = 0, bp; 10277 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10278 10279 bp = WEXT_PNOSETUP_HEADER_SIZE; 10280 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10281 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10282 buf[bp++] = WEXT_PNO_TLV_VERSION; 10283 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10284 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10285 10286 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10287 /* Check that there is enough space needed for 1 more SSID, the 10288 * other sections and null termination */ 10289 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10290 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10291 break; 10292 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10293 params->ssids[i].ssid, 10294 params->ssids[i].ssid_len); 10295 buf[bp++] = WEXT_PNO_SSID_SECTION; 10296 buf[bp++] = params->ssids[i].ssid_len; 10297 os_memcpy(&buf[bp], params->ssids[i].ssid, 10298 params->ssids[i].ssid_len); 10299 bp += params->ssids[i].ssid_len; 10300 i++; 10301 } 10302 10303 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10304 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10305 WEXT_PNO_SCAN_INTERVAL); 10306 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10307 10308 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10309 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10310 WEXT_PNO_REPEAT); 10311 bp += WEXT_PNO_REPEAT_LENGTH; 10312 10313 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10314 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10315 WEXT_PNO_MAX_REPEAT); 10316 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10317 10318 memset(&ifr, 0, sizeof(ifr)); 10319 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10320 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10321 10322 priv_cmd.buf = buf; 10323 priv_cmd.used_len = bp; 10324 priv_cmd.total_len = bp; 10325 ifr.ifr_data = &priv_cmd; 10326 10327 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10328 10329 if (ret < 0) { 10330 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10331 ret); 10332 wpa_driver_send_hang_msg(drv); 10333 return ret; 10334 } 10335 10336 drv_errors = 0; 10337 10338 return android_priv_cmd(bss, "PNOFORCE 1"); 10339} 10340 10341 10342static int android_pno_stop(struct i802_bss *bss) 10343{ 10344 return android_priv_cmd(bss, "PNOFORCE 0"); 10345} 10346 10347#endif /* ANDROID */ 10348 10349 10350static int driver_nl80211_set_key(const char *ifname, void *priv, 10351 enum wpa_alg alg, const u8 *addr, 10352 int key_idx, int set_tx, 10353 const u8 *seq, size_t seq_len, 10354 const u8 *key, size_t key_len) 10355{ 10356 struct i802_bss *bss = priv; 10357 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10358 set_tx, seq, seq_len, key, key_len); 10359} 10360 10361 10362static int driver_nl80211_scan2(void *priv, 10363 struct wpa_driver_scan_params *params) 10364{ 10365 struct i802_bss *bss = priv; 10366 return wpa_driver_nl80211_scan(bss, params); 10367} 10368 10369 10370static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10371 int reason_code) 10372{ 10373 struct i802_bss *bss = priv; 10374 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10375} 10376 10377 10378static int driver_nl80211_authenticate(void *priv, 10379 struct wpa_driver_auth_params *params) 10380{ 10381 struct i802_bss *bss = priv; 10382 return wpa_driver_nl80211_authenticate(bss, params); 10383} 10384 10385 10386static void driver_nl80211_deinit(void *priv) 10387{ 10388 struct i802_bss *bss = priv; 10389 wpa_driver_nl80211_deinit(bss); 10390} 10391 10392 10393static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10394 const char *ifname) 10395{ 10396 struct i802_bss *bss = priv; 10397 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10398} 10399 10400 10401static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10402 size_t data_len, int noack) 10403{ 10404 struct i802_bss *bss = priv; 10405 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10406 0, 0, 0, 0); 10407} 10408 10409 10410static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10411{ 10412 struct i802_bss *bss = priv; 10413 return wpa_driver_nl80211_sta_remove(bss, addr); 10414} 10415 10416 10417#if defined(HOSTAPD) || defined(CONFIG_AP) 10418static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10419 const char *ifname, int vlan_id) 10420{ 10421 struct i802_bss *bss = priv; 10422 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10423} 10424#endif /* HOSTAPD || CONFIG_AP */ 10425 10426 10427static int driver_nl80211_read_sta_data(void *priv, 10428 struct hostap_sta_driver_data *data, 10429 const u8 *addr) 10430{ 10431 struct i802_bss *bss = priv; 10432 return i802_read_sta_data(bss, data, addr); 10433} 10434 10435 10436static int driver_nl80211_send_action(void *priv, unsigned int freq, 10437 unsigned int wait_time, 10438 const u8 *dst, const u8 *src, 10439 const u8 *bssid, 10440 const u8 *data, size_t data_len, 10441 int no_cck) 10442{ 10443 struct i802_bss *bss = priv; 10444 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10445 bssid, data, data_len, no_cck); 10446} 10447 10448 10449static int driver_nl80211_probe_req_report(void *priv, int report) 10450{ 10451 struct i802_bss *bss = priv; 10452 return wpa_driver_nl80211_probe_req_report(bss, report); 10453} 10454 10455 10456static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10457 const u8 *ies, size_t ies_len) 10458{ 10459 int ret; 10460 struct nl_msg *msg; 10461 struct i802_bss *bss = priv; 10462 struct wpa_driver_nl80211_data *drv = bss->drv; 10463 u16 mdid = WPA_GET_LE16(md); 10464 10465 msg = nlmsg_alloc(); 10466 if (!msg) 10467 return -ENOMEM; 10468 10469 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10470 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10471 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10472 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10473 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10474 10475 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10476 if (ret) { 10477 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10478 "err=%d (%s)", ret, strerror(-ret)); 10479 } 10480 10481 return ret; 10482 10483nla_put_failure: 10484 nlmsg_free(msg); 10485 return -ENOBUFS; 10486} 10487 10488 10489const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10490{ 10491 struct i802_bss *bss = priv; 10492 struct wpa_driver_nl80211_data *drv = bss->drv; 10493 10494 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10495 return NULL; 10496 10497 return bss->addr; 10498} 10499 10500 10501const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10502 .name = "nl80211", 10503 .desc = "Linux nl80211/cfg80211", 10504 .get_bssid = wpa_driver_nl80211_get_bssid, 10505 .get_ssid = wpa_driver_nl80211_get_ssid, 10506 .set_key = driver_nl80211_set_key, 10507 .scan2 = driver_nl80211_scan2, 10508 .sched_scan = wpa_driver_nl80211_sched_scan, 10509 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10510 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10511 .deauthenticate = driver_nl80211_deauthenticate, 10512 .authenticate = driver_nl80211_authenticate, 10513 .associate = wpa_driver_nl80211_associate, 10514 .global_init = nl80211_global_init, 10515 .global_deinit = nl80211_global_deinit, 10516 .init2 = wpa_driver_nl80211_init, 10517 .deinit = driver_nl80211_deinit, 10518 .get_capa = wpa_driver_nl80211_get_capa, 10519 .set_operstate = wpa_driver_nl80211_set_operstate, 10520 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10521 .set_country = wpa_driver_nl80211_set_country, 10522 .set_ap = wpa_driver_nl80211_set_ap, 10523 .set_acl = wpa_driver_nl80211_set_acl, 10524 .if_add = wpa_driver_nl80211_if_add, 10525 .if_remove = driver_nl80211_if_remove, 10526 .send_mlme = driver_nl80211_send_mlme, 10527 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10528 .sta_add = wpa_driver_nl80211_sta_add, 10529 .sta_remove = driver_nl80211_sta_remove, 10530 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10531 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10532#ifdef HOSTAPD 10533 .hapd_init = i802_init, 10534 .hapd_deinit = i802_deinit, 10535 .set_wds_sta = i802_set_wds_sta, 10536#endif /* HOSTAPD */ 10537#if defined(HOSTAPD) || defined(CONFIG_AP) 10538 .get_seqnum = i802_get_seqnum, 10539 .flush = i802_flush, 10540 .get_inact_sec = i802_get_inact_sec, 10541 .sta_clear_stats = i802_sta_clear_stats, 10542 .set_rts = i802_set_rts, 10543 .set_frag = i802_set_frag, 10544 .set_tx_queue_params = i802_set_tx_queue_params, 10545 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10546 .sta_deauth = i802_sta_deauth, 10547 .sta_disassoc = i802_sta_disassoc, 10548#endif /* HOSTAPD || CONFIG_AP */ 10549 .read_sta_data = driver_nl80211_read_sta_data, 10550 .set_freq = i802_set_freq, 10551 .send_action = driver_nl80211_send_action, 10552 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 10553 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 10554 .cancel_remain_on_channel = 10555 wpa_driver_nl80211_cancel_remain_on_channel, 10556 .probe_req_report = driver_nl80211_probe_req_report, 10557 .deinit_ap = wpa_driver_nl80211_deinit_ap, 10558 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 10559 .resume = wpa_driver_nl80211_resume, 10560 .send_ft_action = nl80211_send_ft_action, 10561 .signal_monitor = nl80211_signal_monitor, 10562 .signal_poll = nl80211_signal_poll, 10563 .send_frame = nl80211_send_frame, 10564 .shared_freq = wpa_driver_nl80211_shared_freq, 10565 .set_param = nl80211_set_param, 10566 .get_radio_name = nl80211_get_radio_name, 10567 .add_pmkid = nl80211_add_pmkid, 10568 .remove_pmkid = nl80211_remove_pmkid, 10569 .flush_pmkid = nl80211_flush_pmkid, 10570 .set_rekey_info = nl80211_set_rekey_info, 10571 .poll_client = nl80211_poll_client, 10572 .set_p2p_powersave = nl80211_set_p2p_powersave, 10573 .start_dfs_cac = nl80211_start_radar_detection, 10574 .stop_ap = wpa_driver_nl80211_stop_ap, 10575#ifdef CONFIG_TDLS 10576 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 10577 .tdls_oper = nl80211_tdls_oper, 10578#endif /* CONFIG_TDLS */ 10579 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 10580 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 10581#ifdef ANDROID_P2P 10582 .set_noa = wpa_driver_set_p2p_noa, 10583 .get_noa = wpa_driver_get_p2p_noa, 10584 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 10585#endif 10586#ifdef ANDROID 10587 .driver_cmd = wpa_driver_nl80211_driver_cmd, 10588#endif 10589}; 10590