driver_nl80211.c revision c2ebb4b85d69b65f552fee71ac68f44e8d87b39e
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 nl80211_register_frame(struct i802_bss *bss, 314 struct nl_handle *hl_handle, 315 u16 type, const u8 *match, size_t match_len); 316static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 317 int report); 318#ifdef ANDROID 319static int android_pno_start(struct i802_bss *bss, 320 struct wpa_driver_scan_params *params); 321static int android_pno_stop(struct i802_bss *bss); 322#endif /* ANDROID */ 323#ifdef ANDROID_P2P 324int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 325int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 326int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 327int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 328 const struct wpabuf *proberesp, 329 const struct wpabuf *assocresp); 330 331#endif 332#ifdef HOSTAPD 333static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 334static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 335static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 336static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 337 enum wpa_driver_if_type type, 338 const char *ifname); 339#else /* HOSTAPD */ 340static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 341{ 342} 343 344static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 345{ 346} 347 348static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 349{ 350 return 0; 351} 352#endif /* HOSTAPD */ 353#ifdef ANDROID 354extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 355 size_t buf_len); 356#endif 357 358static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 359 struct hostapd_freq_params *freq); 360static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 361 int ifindex, int disabled); 362 363static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 364static int wpa_driver_nl80211_authenticate_retry( 365 struct wpa_driver_nl80211_data *drv); 366 367 368static const char * nl80211_command_to_string(enum nl80211_commands cmd) 369{ 370#define C2S(x) case x: return #x; 371 switch (cmd) { 372 C2S(NL80211_CMD_UNSPEC) 373 C2S(NL80211_CMD_GET_WIPHY) 374 C2S(NL80211_CMD_SET_WIPHY) 375 C2S(NL80211_CMD_NEW_WIPHY) 376 C2S(NL80211_CMD_DEL_WIPHY) 377 C2S(NL80211_CMD_GET_INTERFACE) 378 C2S(NL80211_CMD_SET_INTERFACE) 379 C2S(NL80211_CMD_NEW_INTERFACE) 380 C2S(NL80211_CMD_DEL_INTERFACE) 381 C2S(NL80211_CMD_GET_KEY) 382 C2S(NL80211_CMD_SET_KEY) 383 C2S(NL80211_CMD_NEW_KEY) 384 C2S(NL80211_CMD_DEL_KEY) 385 C2S(NL80211_CMD_GET_BEACON) 386 C2S(NL80211_CMD_SET_BEACON) 387 C2S(NL80211_CMD_START_AP) 388 C2S(NL80211_CMD_STOP_AP) 389 C2S(NL80211_CMD_GET_STATION) 390 C2S(NL80211_CMD_SET_STATION) 391 C2S(NL80211_CMD_NEW_STATION) 392 C2S(NL80211_CMD_DEL_STATION) 393 C2S(NL80211_CMD_GET_MPATH) 394 C2S(NL80211_CMD_SET_MPATH) 395 C2S(NL80211_CMD_NEW_MPATH) 396 C2S(NL80211_CMD_DEL_MPATH) 397 C2S(NL80211_CMD_SET_BSS) 398 C2S(NL80211_CMD_SET_REG) 399 C2S(NL80211_CMD_REQ_SET_REG) 400 C2S(NL80211_CMD_GET_MESH_CONFIG) 401 C2S(NL80211_CMD_SET_MESH_CONFIG) 402 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 403 C2S(NL80211_CMD_GET_REG) 404 C2S(NL80211_CMD_GET_SCAN) 405 C2S(NL80211_CMD_TRIGGER_SCAN) 406 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 407 C2S(NL80211_CMD_SCAN_ABORTED) 408 C2S(NL80211_CMD_REG_CHANGE) 409 C2S(NL80211_CMD_AUTHENTICATE) 410 C2S(NL80211_CMD_ASSOCIATE) 411 C2S(NL80211_CMD_DEAUTHENTICATE) 412 C2S(NL80211_CMD_DISASSOCIATE) 413 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 414 C2S(NL80211_CMD_REG_BEACON_HINT) 415 C2S(NL80211_CMD_JOIN_IBSS) 416 C2S(NL80211_CMD_LEAVE_IBSS) 417 C2S(NL80211_CMD_TESTMODE) 418 C2S(NL80211_CMD_CONNECT) 419 C2S(NL80211_CMD_ROAM) 420 C2S(NL80211_CMD_DISCONNECT) 421 C2S(NL80211_CMD_SET_WIPHY_NETNS) 422 C2S(NL80211_CMD_GET_SURVEY) 423 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 424 C2S(NL80211_CMD_SET_PMKSA) 425 C2S(NL80211_CMD_DEL_PMKSA) 426 C2S(NL80211_CMD_FLUSH_PMKSA) 427 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 428 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 429 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 430 C2S(NL80211_CMD_REGISTER_FRAME) 431 C2S(NL80211_CMD_FRAME) 432 C2S(NL80211_CMD_FRAME_TX_STATUS) 433 C2S(NL80211_CMD_SET_POWER_SAVE) 434 C2S(NL80211_CMD_GET_POWER_SAVE) 435 C2S(NL80211_CMD_SET_CQM) 436 C2S(NL80211_CMD_NOTIFY_CQM) 437 C2S(NL80211_CMD_SET_CHANNEL) 438 C2S(NL80211_CMD_SET_WDS_PEER) 439 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 440 C2S(NL80211_CMD_JOIN_MESH) 441 C2S(NL80211_CMD_LEAVE_MESH) 442 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 443 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 444 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 445 C2S(NL80211_CMD_GET_WOWLAN) 446 C2S(NL80211_CMD_SET_WOWLAN) 447 C2S(NL80211_CMD_START_SCHED_SCAN) 448 C2S(NL80211_CMD_STOP_SCHED_SCAN) 449 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 450 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 451 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 452 C2S(NL80211_CMD_PMKSA_CANDIDATE) 453 C2S(NL80211_CMD_TDLS_OPER) 454 C2S(NL80211_CMD_TDLS_MGMT) 455 C2S(NL80211_CMD_UNEXPECTED_FRAME) 456 C2S(NL80211_CMD_PROBE_CLIENT) 457 C2S(NL80211_CMD_REGISTER_BEACONS) 458 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 459 C2S(NL80211_CMD_SET_NOACK_MAP) 460 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 461 C2S(NL80211_CMD_START_P2P_DEVICE) 462 C2S(NL80211_CMD_STOP_P2P_DEVICE) 463 C2S(NL80211_CMD_CONN_FAILED) 464 C2S(NL80211_CMD_SET_MCAST_RATE) 465 C2S(NL80211_CMD_SET_MAC_ACL) 466 C2S(NL80211_CMD_RADAR_DETECT) 467 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 468 C2S(NL80211_CMD_UPDATE_FT_IES) 469 C2S(NL80211_CMD_FT_EVENT) 470 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 471 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 472 default: 473 return "NL80211_CMD_UNKNOWN"; 474 } 475#undef C2S 476} 477 478 479static int is_ap_interface(enum nl80211_iftype nlmode) 480{ 481 return (nlmode == NL80211_IFTYPE_AP || 482 nlmode == NL80211_IFTYPE_P2P_GO); 483} 484 485 486static int is_sta_interface(enum nl80211_iftype nlmode) 487{ 488 return (nlmode == NL80211_IFTYPE_STATION || 489 nlmode == NL80211_IFTYPE_P2P_CLIENT); 490} 491 492 493static int is_p2p_net_interface(enum nl80211_iftype nlmode) 494{ 495 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 496 nlmode == NL80211_IFTYPE_P2P_GO); 497} 498 499 500static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 501{ 502 if (drv->associated) 503 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 504 drv->associated = 0; 505 os_memset(drv->bssid, 0, ETH_ALEN); 506} 507 508 509struct nl80211_bss_info_arg { 510 struct wpa_driver_nl80211_data *drv; 511 struct wpa_scan_results *res; 512 unsigned int assoc_freq; 513 u8 assoc_bssid[ETH_ALEN]; 514}; 515 516static int bss_info_handler(struct nl_msg *msg, void *arg); 517 518 519/* nl80211 code */ 520static int ack_handler(struct nl_msg *msg, void *arg) 521{ 522 int *err = arg; 523 *err = 0; 524 return NL_STOP; 525} 526 527static int finish_handler(struct nl_msg *msg, void *arg) 528{ 529 int *ret = arg; 530 *ret = 0; 531 return NL_SKIP; 532} 533 534static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 535 void *arg) 536{ 537 int *ret = arg; 538 *ret = err->error; 539 return NL_SKIP; 540} 541 542 543static int no_seq_check(struct nl_msg *msg, void *arg) 544{ 545 return NL_OK; 546} 547 548 549static int send_and_recv(struct nl80211_global *global, 550 struct nl_handle *nl_handle, struct nl_msg *msg, 551 int (*valid_handler)(struct nl_msg *, void *), 552 void *valid_data) 553{ 554 struct nl_cb *cb; 555 int err = -ENOMEM; 556 557 cb = nl_cb_clone(global->nl_cb); 558 if (!cb) 559 goto out; 560 561 err = nl_send_auto_complete(nl_handle, msg); 562 if (err < 0) 563 goto out; 564 565 err = 1; 566 567 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 568 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 569 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 570 571 if (valid_handler) 572 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 573 valid_handler, valid_data); 574 575 while (err > 0) 576 nl_recvmsgs(nl_handle, cb); 577 out: 578 nl_cb_put(cb); 579 nlmsg_free(msg); 580 return err; 581} 582 583 584static int send_and_recv_msgs_global(struct nl80211_global *global, 585 struct nl_msg *msg, 586 int (*valid_handler)(struct nl_msg *, void *), 587 void *valid_data) 588{ 589 return send_and_recv(global, global->nl, msg, valid_handler, 590 valid_data); 591} 592 593 594#ifndef ANDROID 595static 596#endif 597int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 598 struct nl_msg *msg, 599 int (*valid_handler)(struct nl_msg *, void *), 600 void *valid_data) 601{ 602 return send_and_recv(drv->global, drv->global->nl, msg, 603 valid_handler, valid_data); 604} 605 606 607struct family_data { 608 const char *group; 609 int id; 610}; 611 612 613static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 614{ 615 if (bss->wdev_id_set) 616 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 617 else 618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 619 return 0; 620 621nla_put_failure: 622 return -1; 623} 624 625 626static int family_handler(struct nl_msg *msg, void *arg) 627{ 628 struct family_data *res = arg; 629 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 630 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 631 struct nlattr *mcgrp; 632 int i; 633 634 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 635 genlmsg_attrlen(gnlh, 0), NULL); 636 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 637 return NL_SKIP; 638 639 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 640 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 641 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 642 nla_len(mcgrp), NULL); 643 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 644 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 645 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 646 res->group, 647 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 648 continue; 649 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 650 break; 651 }; 652 653 return NL_SKIP; 654} 655 656 657static int nl_get_multicast_id(struct nl80211_global *global, 658 const char *family, const char *group) 659{ 660 struct nl_msg *msg; 661 int ret = -1; 662 struct family_data res = { group, -ENOENT }; 663 664 msg = nlmsg_alloc(); 665 if (!msg) 666 return -ENOMEM; 667 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 668 0, 0, CTRL_CMD_GETFAMILY, 0); 669 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 670 671 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 672 msg = NULL; 673 if (ret == 0) 674 ret = res.id; 675 676nla_put_failure: 677 nlmsg_free(msg); 678 return ret; 679} 680 681 682static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 683 struct nl_msg *msg, int flags, uint8_t cmd) 684{ 685 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 686 0, flags, cmd, 0); 687} 688 689 690struct wiphy_idx_data { 691 int wiphy_idx; 692 enum nl80211_iftype nlmode; 693 u8 *macaddr; 694}; 695 696 697static int netdev_info_handler(struct nl_msg *msg, void *arg) 698{ 699 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 700 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 701 struct wiphy_idx_data *info = arg; 702 703 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 704 genlmsg_attrlen(gnlh, 0), NULL); 705 706 if (tb[NL80211_ATTR_WIPHY]) 707 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 708 709 if (tb[NL80211_ATTR_IFTYPE]) 710 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 711 712 if (tb[NL80211_ATTR_MAC] && info->macaddr) 713 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 714 ETH_ALEN); 715 716 return NL_SKIP; 717} 718 719 720static int nl80211_get_wiphy_index(struct i802_bss *bss) 721{ 722 struct nl_msg *msg; 723 struct wiphy_idx_data data = { 724 .wiphy_idx = -1, 725 .macaddr = NULL, 726 }; 727 728 msg = nlmsg_alloc(); 729 if (!msg) 730 return NL80211_IFTYPE_UNSPECIFIED; 731 732 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 733 734 if (nl80211_set_iface_id(msg, bss) < 0) 735 goto nla_put_failure; 736 737 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 738 return data.wiphy_idx; 739 msg = NULL; 740nla_put_failure: 741 nlmsg_free(msg); 742 return -1; 743} 744 745 746static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 747{ 748 struct nl_msg *msg; 749 struct wiphy_idx_data data = { 750 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 751 .macaddr = NULL, 752 }; 753 754 msg = nlmsg_alloc(); 755 if (!msg) 756 return -1; 757 758 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 759 760 if (nl80211_set_iface_id(msg, bss) < 0) 761 goto nla_put_failure; 762 763 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 764 return data.nlmode; 765 msg = NULL; 766nla_put_failure: 767 nlmsg_free(msg); 768 return NL80211_IFTYPE_UNSPECIFIED; 769} 770 771 772#ifndef HOSTAPD 773static int nl80211_get_macaddr(struct i802_bss *bss) 774{ 775 struct nl_msg *msg; 776 struct wiphy_idx_data data = { 777 .macaddr = bss->addr, 778 }; 779 780 msg = nlmsg_alloc(); 781 if (!msg) 782 return NL80211_IFTYPE_UNSPECIFIED; 783 784 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 785 if (nl80211_set_iface_id(msg, bss) < 0) 786 goto nla_put_failure; 787 788 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 789 790nla_put_failure: 791 nlmsg_free(msg); 792 return NL80211_IFTYPE_UNSPECIFIED; 793} 794#endif /* HOSTAPD */ 795 796 797static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 798 struct nl80211_wiphy_data *w) 799{ 800 struct nl_msg *msg; 801 int ret = -1; 802 803 msg = nlmsg_alloc(); 804 if (!msg) 805 return -1; 806 807 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 808 809 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 810 811 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 812 msg = NULL; 813 if (ret) { 814 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 815 "failed: ret=%d (%s)", 816 ret, strerror(-ret)); 817 goto nla_put_failure; 818 } 819 ret = 0; 820nla_put_failure: 821 nlmsg_free(msg); 822 return ret; 823} 824 825 826static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 827{ 828 struct nl80211_wiphy_data *w = eloop_ctx; 829 830 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 831 832 nl_recvmsgs(handle, w->nl_cb); 833} 834 835 836static int process_beacon_event(struct nl_msg *msg, void *arg) 837{ 838 struct nl80211_wiphy_data *w = arg; 839 struct wpa_driver_nl80211_data *drv; 840 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 841 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 842 union wpa_event_data event; 843 844 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 845 genlmsg_attrlen(gnlh, 0), NULL); 846 847 if (gnlh->cmd != NL80211_CMD_FRAME) { 848 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 849 gnlh->cmd); 850 return NL_SKIP; 851 } 852 853 if (!tb[NL80211_ATTR_FRAME]) 854 return NL_SKIP; 855 856 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 857 wiphy_list) { 858 os_memset(&event, 0, sizeof(event)); 859 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 860 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 861 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 862 } 863 864 return NL_SKIP; 865} 866 867 868static struct nl80211_wiphy_data * 869nl80211_get_wiphy_data_ap(struct i802_bss *bss) 870{ 871 static DEFINE_DL_LIST(nl80211_wiphys); 872 struct nl80211_wiphy_data *w; 873 int wiphy_idx, found = 0; 874 struct i802_bss *tmp_bss; 875 876 if (bss->wiphy_data != NULL) 877 return bss->wiphy_data; 878 879 wiphy_idx = nl80211_get_wiphy_index(bss); 880 881 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 882 if (w->wiphy_idx == wiphy_idx) 883 goto add; 884 } 885 886 /* alloc new one */ 887 w = os_zalloc(sizeof(*w)); 888 if (w == NULL) 889 return NULL; 890 w->wiphy_idx = wiphy_idx; 891 dl_list_init(&w->bsss); 892 dl_list_init(&w->drvs); 893 894 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 895 if (!w->nl_cb) { 896 os_free(w); 897 return NULL; 898 } 899 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 900 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 901 w); 902 903 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 904 "wiphy beacons"); 905 if (w->nl_beacons == NULL) { 906 os_free(w); 907 return NULL; 908 } 909 910 if (nl80211_register_beacons(bss->drv, w)) { 911 nl_destroy_handles(&w->nl_beacons); 912 os_free(w); 913 return NULL; 914 } 915 916 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 917 nl80211_recv_beacons, w, w->nl_beacons); 918 919 dl_list_add(&nl80211_wiphys, &w->list); 920 921add: 922 /* drv entry for this bss already there? */ 923 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 924 if (tmp_bss->drv == bss->drv) { 925 found = 1; 926 break; 927 } 928 } 929 /* if not add it */ 930 if (!found) 931 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 932 933 dl_list_add(&w->bsss, &bss->wiphy_list); 934 bss->wiphy_data = w; 935 return w; 936} 937 938 939static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 940{ 941 struct nl80211_wiphy_data *w = bss->wiphy_data; 942 struct i802_bss *tmp_bss; 943 int found = 0; 944 945 if (w == NULL) 946 return; 947 bss->wiphy_data = NULL; 948 dl_list_del(&bss->wiphy_list); 949 950 /* still any for this drv present? */ 951 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 952 if (tmp_bss->drv == bss->drv) { 953 found = 1; 954 break; 955 } 956 } 957 /* if not remove it */ 958 if (!found) 959 dl_list_del(&bss->drv->wiphy_list); 960 961 if (!dl_list_empty(&w->bsss)) 962 return; 963 964 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 965 966 nl_cb_put(w->nl_cb); 967 nl_destroy_handles(&w->nl_beacons); 968 dl_list_del(&w->list); 969 os_free(w); 970} 971 972 973static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 974{ 975 struct i802_bss *bss = priv; 976 struct wpa_driver_nl80211_data *drv = bss->drv; 977 if (!drv->associated) 978 return -1; 979 os_memcpy(bssid, drv->bssid, ETH_ALEN); 980 return 0; 981} 982 983 984static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 985{ 986 struct i802_bss *bss = priv; 987 struct wpa_driver_nl80211_data *drv = bss->drv; 988 if (!drv->associated) 989 return -1; 990 os_memcpy(ssid, drv->ssid, drv->ssid_len); 991 return drv->ssid_len; 992} 993 994 995static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 996 char *buf, size_t len, int del) 997{ 998 union wpa_event_data event; 999 1000 os_memset(&event, 0, sizeof(event)); 1001 if (len > sizeof(event.interface_status.ifname)) 1002 len = sizeof(event.interface_status.ifname) - 1; 1003 os_memcpy(event.interface_status.ifname, buf, len); 1004 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1005 EVENT_INTERFACE_ADDED; 1006 1007 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1008 del ? "DEL" : "NEW", 1009 event.interface_status.ifname, 1010 del ? "removed" : "added"); 1011 1012 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 1013 if (del) { 1014 if (drv->if_removed) { 1015 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1016 "already set - ignore event"); 1017 return; 1018 } 1019 drv->if_removed = 1; 1020 } else { 1021 if (if_nametoindex(drv->first_bss.ifname) == 0) { 1022 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1023 "does not exist - ignore " 1024 "RTM_NEWLINK", 1025 drv->first_bss.ifname); 1026 return; 1027 } 1028 if (!drv->if_removed) { 1029 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1030 "already cleared - ignore event"); 1031 return; 1032 } 1033 drv->if_removed = 0; 1034 } 1035 } 1036 1037 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1038} 1039 1040 1041static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1042 u8 *buf, size_t len) 1043{ 1044 int attrlen, rta_len; 1045 struct rtattr *attr; 1046 1047 attrlen = len; 1048 attr = (struct rtattr *) buf; 1049 1050 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1051 while (RTA_OK(attr, attrlen)) { 1052 if (attr->rta_type == IFLA_IFNAME) { 1053 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 1054 == 0) 1055 return 1; 1056 else 1057 break; 1058 } 1059 attr = RTA_NEXT(attr, attrlen); 1060 } 1061 1062 return 0; 1063} 1064 1065 1066static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1067 int ifindex, u8 *buf, size_t len) 1068{ 1069 if (drv->ifindex == ifindex) 1070 return 1; 1071 1072 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1073 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1074 "interface"); 1075 wpa_driver_nl80211_finish_drv_init(drv); 1076 return 1; 1077 } 1078 1079 return 0; 1080} 1081 1082 1083static struct wpa_driver_nl80211_data * 1084nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1085{ 1086 struct wpa_driver_nl80211_data *drv; 1087 dl_list_for_each(drv, &global->interfaces, 1088 struct wpa_driver_nl80211_data, list) { 1089 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1090 have_ifidx(drv, idx)) 1091 return drv; 1092 } 1093 return NULL; 1094} 1095 1096 1097static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1098 struct ifinfomsg *ifi, 1099 u8 *buf, size_t len) 1100{ 1101 struct nl80211_global *global = ctx; 1102 struct wpa_driver_nl80211_data *drv; 1103 int attrlen, rta_len; 1104 struct rtattr *attr; 1105 u32 brid = 0; 1106 char namebuf[IFNAMSIZ]; 1107 1108 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1109 if (!drv) { 1110 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1111 "ifindex %d", ifi->ifi_index); 1112 return; 1113 } 1114 1115 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1116 "(%s%s%s%s)", 1117 drv->operstate, ifi->ifi_flags, 1118 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1119 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1120 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1121 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1122 1123 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1124 if (if_indextoname(ifi->ifi_index, namebuf) && 1125 linux_iface_up(drv->global->ioctl_sock, 1126 drv->first_bss.ifname) > 0) { 1127 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1128 "event since interface %s is up", namebuf); 1129 return; 1130 } 1131 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1132 if (drv->ignore_if_down_event) { 1133 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1134 "event generated by mode change"); 1135 drv->ignore_if_down_event = 0; 1136 } else { 1137 drv->if_disabled = 1; 1138 wpa_supplicant_event(drv->ctx, 1139 EVENT_INTERFACE_DISABLED, NULL); 1140 } 1141 } 1142 1143 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1144 if (if_indextoname(ifi->ifi_index, namebuf) && 1145 linux_iface_up(drv->global->ioctl_sock, 1146 drv->first_bss.ifname) == 0) { 1147 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1148 "event since interface %s is down", 1149 namebuf); 1150 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 1151 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1152 "event since interface %s does not exist", 1153 drv->first_bss.ifname); 1154 } else if (drv->if_removed) { 1155 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1156 "event since interface %s is marked " 1157 "removed", drv->first_bss.ifname); 1158 } else { 1159 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1160 drv->if_disabled = 0; 1161 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1162 NULL); 1163 } 1164 } 1165 1166 /* 1167 * Some drivers send the association event before the operup event--in 1168 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1169 * fails. This will hit us when wpa_supplicant does not need to do 1170 * IEEE 802.1X authentication 1171 */ 1172 if (drv->operstate == 1 && 1173 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1174 !(ifi->ifi_flags & IFF_RUNNING)) 1175 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1176 -1, IF_OPER_UP); 1177 1178 attrlen = len; 1179 attr = (struct rtattr *) buf; 1180 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1181 while (RTA_OK(attr, attrlen)) { 1182 if (attr->rta_type == IFLA_IFNAME) { 1183 wpa_driver_nl80211_event_link( 1184 drv, 1185 ((char *) attr) + rta_len, 1186 attr->rta_len - rta_len, 0); 1187 } else if (attr->rta_type == IFLA_MASTER) 1188 brid = nla_get_u32((struct nlattr *) attr); 1189 attr = RTA_NEXT(attr, attrlen); 1190 } 1191 1192 if (ifi->ifi_family == AF_BRIDGE && brid) { 1193 /* device has been added to bridge */ 1194 if_indextoname(brid, namebuf); 1195 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1196 brid, namebuf); 1197 add_ifidx(drv, brid); 1198 } 1199} 1200 1201 1202static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1203 struct ifinfomsg *ifi, 1204 u8 *buf, size_t len) 1205{ 1206 struct nl80211_global *global = ctx; 1207 struct wpa_driver_nl80211_data *drv; 1208 int attrlen, rta_len; 1209 struct rtattr *attr; 1210 u32 brid = 0; 1211 1212 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1213 if (!drv) { 1214 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1215 "foreign ifindex %d", ifi->ifi_index); 1216 return; 1217 } 1218 1219 attrlen = len; 1220 attr = (struct rtattr *) buf; 1221 1222 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1223 while (RTA_OK(attr, attrlen)) { 1224 if (attr->rta_type == IFLA_IFNAME) { 1225 wpa_driver_nl80211_event_link( 1226 drv, 1227 ((char *) attr) + rta_len, 1228 attr->rta_len - rta_len, 1); 1229 } else if (attr->rta_type == IFLA_MASTER) 1230 brid = nla_get_u32((struct nlattr *) attr); 1231 attr = RTA_NEXT(attr, attrlen); 1232 } 1233 1234 if (ifi->ifi_family == AF_BRIDGE && brid) { 1235 /* device has been removed from bridge */ 1236 char namebuf[IFNAMSIZ]; 1237 if_indextoname(brid, namebuf); 1238 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1239 "%s", brid, namebuf); 1240 del_ifidx(drv, brid); 1241 } 1242} 1243 1244 1245static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1246 const u8 *frame, size_t len) 1247{ 1248 const struct ieee80211_mgmt *mgmt; 1249 union wpa_event_data event; 1250 1251 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1252 mgmt = (const struct ieee80211_mgmt *) frame; 1253 if (len < 24 + sizeof(mgmt->u.auth)) { 1254 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1255 "frame"); 1256 return; 1257 } 1258 1259 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1260 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1261 os_memset(&event, 0, sizeof(event)); 1262 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1263 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1264 event.auth.auth_transaction = 1265 le_to_host16(mgmt->u.auth.auth_transaction); 1266 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1267 if (len > 24 + sizeof(mgmt->u.auth)) { 1268 event.auth.ies = mgmt->u.auth.variable; 1269 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1270 } 1271 1272 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1273} 1274 1275 1276static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1277{ 1278 struct nl_msg *msg; 1279 int ret; 1280 struct nl80211_bss_info_arg arg; 1281 1282 os_memset(&arg, 0, sizeof(arg)); 1283 msg = nlmsg_alloc(); 1284 if (!msg) 1285 goto nla_put_failure; 1286 1287 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1288 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1289 1290 arg.drv = drv; 1291 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1292 msg = NULL; 1293 if (ret == 0) { 1294 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1295 "associated BSS from scan results: %u MHz", 1296 arg.assoc_freq); 1297 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; 1298 } 1299 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1300 "(%s)", ret, strerror(-ret)); 1301nla_put_failure: 1302 nlmsg_free(msg); 1303 return drv->assoc_freq; 1304} 1305 1306 1307static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1308 const u8 *frame, size_t len) 1309{ 1310 const struct ieee80211_mgmt *mgmt; 1311 union wpa_event_data event; 1312 u16 status; 1313 1314 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1315 mgmt = (const struct ieee80211_mgmt *) frame; 1316 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1317 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1318 "frame"); 1319 return; 1320 } 1321 1322 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1323 if (status != WLAN_STATUS_SUCCESS) { 1324 os_memset(&event, 0, sizeof(event)); 1325 event.assoc_reject.bssid = mgmt->bssid; 1326 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1327 event.assoc_reject.resp_ies = 1328 (u8 *) mgmt->u.assoc_resp.variable; 1329 event.assoc_reject.resp_ies_len = 1330 len - 24 - sizeof(mgmt->u.assoc_resp); 1331 } 1332 event.assoc_reject.status_code = status; 1333 1334 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1335 return; 1336 } 1337 1338 drv->associated = 1; 1339 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1340 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1341 1342 os_memset(&event, 0, sizeof(event)); 1343 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1344 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1345 event.assoc_info.resp_ies_len = 1346 len - 24 - sizeof(mgmt->u.assoc_resp); 1347 } 1348 1349 event.assoc_info.freq = drv->assoc_freq; 1350 1351 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1352} 1353 1354 1355static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1356 enum nl80211_commands cmd, struct nlattr *status, 1357 struct nlattr *addr, struct nlattr *req_ie, 1358 struct nlattr *resp_ie) 1359{ 1360 union wpa_event_data event; 1361 1362 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1363 /* 1364 * Avoid reporting two association events that would confuse 1365 * the core code. 1366 */ 1367 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1368 "when using userspace SME", cmd); 1369 return; 1370 } 1371 1372 if (cmd == NL80211_CMD_CONNECT) 1373 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1374 else if (cmd == NL80211_CMD_ROAM) 1375 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1376 1377 os_memset(&event, 0, sizeof(event)); 1378 if (cmd == NL80211_CMD_CONNECT && 1379 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1380 if (addr) 1381 event.assoc_reject.bssid = nla_data(addr); 1382 if (resp_ie) { 1383 event.assoc_reject.resp_ies = nla_data(resp_ie); 1384 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1385 } 1386 event.assoc_reject.status_code = nla_get_u16(status); 1387 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1388 return; 1389 } 1390 1391 drv->associated = 1; 1392 if (addr) { 1393 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1394 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1395 } 1396 1397 if (req_ie) { 1398 event.assoc_info.req_ies = nla_data(req_ie); 1399 event.assoc_info.req_ies_len = nla_len(req_ie); 1400 } 1401 if (resp_ie) { 1402 event.assoc_info.resp_ies = nla_data(resp_ie); 1403 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1404 } 1405 1406 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1407 1408 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1409} 1410 1411 1412static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1413 struct nlattr *reason, struct nlattr *addr, 1414 struct nlattr *by_ap) 1415{ 1416 union wpa_event_data data; 1417 unsigned int locally_generated = by_ap == NULL; 1418 1419 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1420 /* 1421 * Avoid reporting two disassociation events that could 1422 * confuse the core code. 1423 */ 1424 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1425 "event when using userspace SME"); 1426 return; 1427 } 1428 1429 if (drv->ignore_next_local_disconnect) { 1430 drv->ignore_next_local_disconnect = 0; 1431 if (locally_generated) { 1432 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1433 "event triggered during reassociation"); 1434 return; 1435 } 1436 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1437 "disconnect but got another disconnect " 1438 "event first"); 1439 } 1440 1441 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1442 nl80211_mark_disconnected(drv); 1443 os_memset(&data, 0, sizeof(data)); 1444 if (reason) 1445 data.deauth_info.reason_code = nla_get_u16(reason); 1446 data.deauth_info.locally_generated = by_ap == NULL; 1447 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1448} 1449 1450 1451static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1452 struct nlattr *freq, struct nlattr *type) 1453{ 1454 union wpa_event_data data; 1455 int ht_enabled = 1; 1456 int chan_offset = 0; 1457 1458 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1459 1460 if (!freq || !type) 1461 return; 1462 1463 switch (nla_get_u32(type)) { 1464 case NL80211_CHAN_NO_HT: 1465 ht_enabled = 0; 1466 break; 1467 case NL80211_CHAN_HT20: 1468 break; 1469 case NL80211_CHAN_HT40PLUS: 1470 chan_offset = 1; 1471 break; 1472 case NL80211_CHAN_HT40MINUS: 1473 chan_offset = -1; 1474 break; 1475 } 1476 1477 data.ch_switch.freq = nla_get_u32(freq); 1478 data.ch_switch.ht_enabled = ht_enabled; 1479 data.ch_switch.ch_offset = chan_offset; 1480 1481 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1482} 1483 1484 1485static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1486 enum nl80211_commands cmd, struct nlattr *addr) 1487{ 1488 union wpa_event_data event; 1489 enum wpa_event_type ev; 1490 1491 if (nla_len(addr) != ETH_ALEN) 1492 return; 1493 1494 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1495 cmd, MAC2STR((u8 *) nla_data(addr))); 1496 1497 if (cmd == NL80211_CMD_AUTHENTICATE) 1498 ev = EVENT_AUTH_TIMED_OUT; 1499 else if (cmd == NL80211_CMD_ASSOCIATE) 1500 ev = EVENT_ASSOC_TIMED_OUT; 1501 else 1502 return; 1503 1504 os_memset(&event, 0, sizeof(event)); 1505 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1506 wpa_supplicant_event(drv->ctx, ev, &event); 1507} 1508 1509 1510static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1511 struct nlattr *freq, struct nlattr *sig, 1512 const u8 *frame, size_t len) 1513{ 1514 const struct ieee80211_mgmt *mgmt; 1515 union wpa_event_data event; 1516 u16 fc, stype; 1517 int ssi_signal = 0; 1518 1519 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1520 mgmt = (const struct ieee80211_mgmt *) frame; 1521 if (len < 24) { 1522 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1523 return; 1524 } 1525 1526 fc = le_to_host16(mgmt->frame_control); 1527 stype = WLAN_FC_GET_STYPE(fc); 1528 1529 if (sig) 1530 ssi_signal = (s32) nla_get_u32(sig); 1531 1532 os_memset(&event, 0, sizeof(event)); 1533 if (freq) { 1534 event.rx_action.freq = nla_get_u32(freq); 1535 drv->last_mgmt_freq = event.rx_action.freq; 1536 } 1537 if (stype == WLAN_FC_STYPE_ACTION) { 1538 event.rx_action.da = mgmt->da; 1539 event.rx_action.sa = mgmt->sa; 1540 event.rx_action.bssid = mgmt->bssid; 1541 event.rx_action.category = mgmt->u.action.category; 1542 event.rx_action.data = &mgmt->u.action.category + 1; 1543 event.rx_action.len = frame + len - event.rx_action.data; 1544 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1545 } else { 1546 event.rx_mgmt.frame = frame; 1547 event.rx_mgmt.frame_len = len; 1548 event.rx_mgmt.ssi_signal = ssi_signal; 1549 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1550 } 1551} 1552 1553 1554static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1555 struct nlattr *cookie, const u8 *frame, 1556 size_t len, struct nlattr *ack) 1557{ 1558 union wpa_event_data event; 1559 const struct ieee80211_hdr *hdr; 1560 u16 fc; 1561 1562 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1563 if (!is_ap_interface(drv->nlmode)) { 1564 u64 cookie_val; 1565 1566 if (!cookie) 1567 return; 1568 1569 cookie_val = nla_get_u64(cookie); 1570 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1571 " cookie=0%llx%s (ack=%d)", 1572 (long long unsigned int) cookie_val, 1573 cookie_val == drv->send_action_cookie ? 1574 " (match)" : " (unknown)", ack != NULL); 1575 if (cookie_val != drv->send_action_cookie) 1576 return; 1577 } 1578 1579 hdr = (const struct ieee80211_hdr *) frame; 1580 fc = le_to_host16(hdr->frame_control); 1581 1582 os_memset(&event, 0, sizeof(event)); 1583 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1584 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1585 event.tx_status.dst = hdr->addr1; 1586 event.tx_status.data = frame; 1587 event.tx_status.data_len = len; 1588 event.tx_status.ack = ack != NULL; 1589 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1590} 1591 1592 1593static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1594 enum wpa_event_type type, 1595 const u8 *frame, size_t len) 1596{ 1597 const struct ieee80211_mgmt *mgmt; 1598 union wpa_event_data event; 1599 const u8 *bssid = NULL; 1600 u16 reason_code = 0; 1601 1602 if (type == EVENT_DEAUTH) 1603 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1604 else 1605 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1606 1607 mgmt = (const struct ieee80211_mgmt *) frame; 1608 if (len >= 24) { 1609 bssid = mgmt->bssid; 1610 1611 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1612 !drv->associated && 1613 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1614 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1615 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1616 /* 1617 * Avoid issues with some roaming cases where 1618 * disconnection event for the old AP may show up after 1619 * we have started connection with the new AP. 1620 */ 1621 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1622 MAC2STR(bssid), 1623 MAC2STR(drv->auth_attempt_bssid)); 1624 return; 1625 } 1626 1627 if (drv->associated != 0 && 1628 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1629 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1630 /* 1631 * We have presumably received this deauth as a 1632 * response to a clear_state_mismatch() outgoing 1633 * deauth. Don't let it take us offline! 1634 */ 1635 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1636 "from Unknown BSSID " MACSTR " -- ignoring", 1637 MAC2STR(bssid)); 1638 return; 1639 } 1640 } 1641 1642 nl80211_mark_disconnected(drv); 1643 os_memset(&event, 0, sizeof(event)); 1644 1645 /* Note: Same offset for Reason Code in both frame subtypes */ 1646 if (len >= 24 + sizeof(mgmt->u.deauth)) 1647 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1648 1649 if (type == EVENT_DISASSOC) { 1650 event.disassoc_info.locally_generated = 1651 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1652 event.disassoc_info.addr = bssid; 1653 event.disassoc_info.reason_code = reason_code; 1654 if (frame + len > mgmt->u.disassoc.variable) { 1655 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1656 event.disassoc_info.ie_len = frame + len - 1657 mgmt->u.disassoc.variable; 1658 } 1659 } else { 1660 event.deauth_info.locally_generated = 1661 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1662 event.deauth_info.addr = bssid; 1663 event.deauth_info.reason_code = reason_code; 1664 if (frame + len > mgmt->u.deauth.variable) { 1665 event.deauth_info.ie = mgmt->u.deauth.variable; 1666 event.deauth_info.ie_len = frame + len - 1667 mgmt->u.deauth.variable; 1668 } 1669 } 1670 1671 wpa_supplicant_event(drv->ctx, type, &event); 1672} 1673 1674 1675static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1676 enum wpa_event_type type, 1677 const u8 *frame, size_t len) 1678{ 1679 const struct ieee80211_mgmt *mgmt; 1680 union wpa_event_data event; 1681 u16 reason_code = 0; 1682 1683 if (type == EVENT_UNPROT_DEAUTH) 1684 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1685 else 1686 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1687 1688 if (len < 24) 1689 return; 1690 1691 mgmt = (const struct ieee80211_mgmt *) frame; 1692 1693 os_memset(&event, 0, sizeof(event)); 1694 /* Note: Same offset for Reason Code in both frame subtypes */ 1695 if (len >= 24 + sizeof(mgmt->u.deauth)) 1696 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1697 1698 if (type == EVENT_UNPROT_DISASSOC) { 1699 event.unprot_disassoc.sa = mgmt->sa; 1700 event.unprot_disassoc.da = mgmt->da; 1701 event.unprot_disassoc.reason_code = reason_code; 1702 } else { 1703 event.unprot_deauth.sa = mgmt->sa; 1704 event.unprot_deauth.da = mgmt->da; 1705 event.unprot_deauth.reason_code = reason_code; 1706 } 1707 1708 wpa_supplicant_event(drv->ctx, type, &event); 1709} 1710 1711 1712static void mlme_event(struct i802_bss *bss, 1713 enum nl80211_commands cmd, struct nlattr *frame, 1714 struct nlattr *addr, struct nlattr *timed_out, 1715 struct nlattr *freq, struct nlattr *ack, 1716 struct nlattr *cookie, struct nlattr *sig) 1717{ 1718 struct wpa_driver_nl80211_data *drv = bss->drv; 1719 const u8 *data; 1720 size_t len; 1721 1722 if (timed_out && addr) { 1723 mlme_timeout_event(drv, cmd, addr); 1724 return; 1725 } 1726 1727 if (frame == NULL) { 1728 wpa_printf(MSG_DEBUG, 1729 "nl80211: MLME event %d (%s) without frame data", 1730 cmd, nl80211_command_to_string(cmd)); 1731 return; 1732 } 1733 1734 data = nla_data(frame); 1735 len = nla_len(frame); 1736 if (len < 4 + 2 * ETH_ALEN) { 1737 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1738 MACSTR ") - too short", 1739 cmd, nl80211_command_to_string(cmd), bss->ifname, 1740 MAC2STR(bss->addr)); 1741 return; 1742 } 1743 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1744 ") A1=" MACSTR " A2=" MACSTR, cmd, 1745 nl80211_command_to_string(cmd), bss->ifname, 1746 MAC2STR(bss->addr), MAC2STR(data + 4), 1747 MAC2STR(data + 4 + ETH_ALEN)); 1748 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1749 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1750 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1751 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1752 "for foreign address", bss->ifname); 1753 return; 1754 } 1755 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1756 nla_data(frame), nla_len(frame)); 1757 1758 switch (cmd) { 1759 case NL80211_CMD_AUTHENTICATE: 1760 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1761 break; 1762 case NL80211_CMD_ASSOCIATE: 1763 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1764 break; 1765 case NL80211_CMD_DEAUTHENTICATE: 1766 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1767 nla_data(frame), nla_len(frame)); 1768 break; 1769 case NL80211_CMD_DISASSOCIATE: 1770 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1771 nla_data(frame), nla_len(frame)); 1772 break; 1773 case NL80211_CMD_FRAME: 1774 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1775 nla_len(frame)); 1776 break; 1777 case NL80211_CMD_FRAME_TX_STATUS: 1778 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1779 nla_len(frame), ack); 1780 break; 1781 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1782 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1783 nla_data(frame), nla_len(frame)); 1784 break; 1785 case NL80211_CMD_UNPROT_DISASSOCIATE: 1786 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1787 nla_data(frame), nla_len(frame)); 1788 break; 1789 default: 1790 break; 1791 } 1792} 1793 1794 1795static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1796 struct nlattr *tb[]) 1797{ 1798 union wpa_event_data data; 1799 1800 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1801 os_memset(&data, 0, sizeof(data)); 1802 if (tb[NL80211_ATTR_MAC]) { 1803 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1804 nla_data(tb[NL80211_ATTR_MAC]), 1805 nla_len(tb[NL80211_ATTR_MAC])); 1806 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1807 } 1808 if (tb[NL80211_ATTR_KEY_SEQ]) { 1809 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1810 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1811 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1812 } 1813 if (tb[NL80211_ATTR_KEY_TYPE]) { 1814 enum nl80211_key_type key_type = 1815 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1816 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1817 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1818 data.michael_mic_failure.unicast = 1; 1819 } else 1820 data.michael_mic_failure.unicast = 1; 1821 1822 if (tb[NL80211_ATTR_KEY_IDX]) { 1823 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1824 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1825 } 1826 1827 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1828} 1829 1830 1831static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1832 struct nlattr *tb[]) 1833{ 1834 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 1835 1836 if (tb[NL80211_ATTR_MAC] == NULL) { 1837 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1838 "event"); 1839 return; 1840 } 1841 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1842 1843 /* register for any AUTH message */ 1844 nl80211_register_frame(&drv->first_bss, drv->first_bss.nl_mgmt, 1845 type, NULL, 0); 1846 1847 drv->associated = 1; 1848 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1849 MAC2STR(drv->bssid)); 1850 1851 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1852} 1853 1854 1855static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1856 int cancel_event, struct nlattr *tb[]) 1857{ 1858 unsigned int freq, chan_type, duration; 1859 union wpa_event_data data; 1860 u64 cookie; 1861 1862 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1863 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1864 else 1865 freq = 0; 1866 1867 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1868 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1869 else 1870 chan_type = 0; 1871 1872 if (tb[NL80211_ATTR_DURATION]) 1873 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1874 else 1875 duration = 0; 1876 1877 if (tb[NL80211_ATTR_COOKIE]) 1878 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1879 else 1880 cookie = 0; 1881 1882 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1883 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1884 cancel_event, freq, chan_type, duration, 1885 (long long unsigned int) cookie, 1886 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1887 1888 if (cookie != drv->remain_on_chan_cookie) 1889 return; /* not for us */ 1890 1891 if (cancel_event) 1892 drv->pending_remain_on_chan = 0; 1893 1894 os_memset(&data, 0, sizeof(data)); 1895 data.remain_on_channel.freq = freq; 1896 data.remain_on_channel.duration = duration; 1897 wpa_supplicant_event(drv->ctx, cancel_event ? 1898 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1899 EVENT_REMAIN_ON_CHANNEL, &data); 1900} 1901 1902 1903static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1904 struct nlattr *tb[]) 1905{ 1906 union wpa_event_data data; 1907 1908 os_memset(&data, 0, sizeof(data)); 1909 1910 if (tb[NL80211_ATTR_IE]) { 1911 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1912 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1913 } 1914 1915 if (tb[NL80211_ATTR_IE_RIC]) { 1916 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1917 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1918 } 1919 1920 if (tb[NL80211_ATTR_MAC]) 1921 os_memcpy(data.ft_ies.target_ap, 1922 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1923 1924 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1925 MAC2STR(data.ft_ies.target_ap)); 1926 1927 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1928} 1929 1930 1931static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1932 struct nlattr *tb[]) 1933{ 1934 union wpa_event_data event; 1935 struct nlattr *nl; 1936 int rem; 1937 struct scan_info *info; 1938#define MAX_REPORT_FREQS 50 1939 int freqs[MAX_REPORT_FREQS]; 1940 int num_freqs = 0; 1941 1942 if (drv->scan_for_auth) { 1943 drv->scan_for_auth = 0; 1944 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1945 "cfg80211 BSS entry"); 1946 wpa_driver_nl80211_authenticate_retry(drv); 1947 return; 1948 } 1949 1950 os_memset(&event, 0, sizeof(event)); 1951 info = &event.scan_info; 1952 info->aborted = aborted; 1953 1954 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1955 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1956 struct wpa_driver_scan_ssid *s = 1957 &info->ssids[info->num_ssids]; 1958 s->ssid = nla_data(nl); 1959 s->ssid_len = nla_len(nl); 1960 info->num_ssids++; 1961 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1962 break; 1963 } 1964 } 1965 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1966 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1967 { 1968 freqs[num_freqs] = nla_get_u32(nl); 1969 num_freqs++; 1970 if (num_freqs == MAX_REPORT_FREQS - 1) 1971 break; 1972 } 1973 info->freqs = freqs; 1974 info->num_freqs = num_freqs; 1975 } 1976 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1977} 1978 1979 1980static int get_link_signal(struct nl_msg *msg, void *arg) 1981{ 1982 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1983 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1984 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1985 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1986 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1987 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 1988 }; 1989 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1990 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1991 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1992 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1993 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1994 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1995 }; 1996 struct wpa_signal_info *sig_change = arg; 1997 1998 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1999 genlmsg_attrlen(gnlh, 0), NULL); 2000 if (!tb[NL80211_ATTR_STA_INFO] || 2001 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2002 tb[NL80211_ATTR_STA_INFO], policy)) 2003 return NL_SKIP; 2004 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2005 return NL_SKIP; 2006 2007 sig_change->current_signal = 2008 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2009 2010 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2011 sig_change->avg_signal = 2012 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2013 else 2014 sig_change->avg_signal = 0; 2015 2016 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2017 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2018 sinfo[NL80211_STA_INFO_TX_BITRATE], 2019 rate_policy)) { 2020 sig_change->current_txrate = 0; 2021 } else { 2022 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2023 sig_change->current_txrate = 2024 nla_get_u16(rinfo[ 2025 NL80211_RATE_INFO_BITRATE]) * 100; 2026 } 2027 } 2028 } 2029 2030 return NL_SKIP; 2031} 2032 2033 2034static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2035 struct wpa_signal_info *sig) 2036{ 2037 struct nl_msg *msg; 2038 2039 sig->current_signal = -9999; 2040 sig->current_txrate = 0; 2041 2042 msg = nlmsg_alloc(); 2043 if (!msg) 2044 return -ENOMEM; 2045 2046 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2047 2048 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2049 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2050 2051 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2052 nla_put_failure: 2053 nlmsg_free(msg); 2054 return -ENOBUFS; 2055} 2056 2057 2058static int get_link_noise(struct nl_msg *msg, void *arg) 2059{ 2060 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2061 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2062 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2063 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2064 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2065 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2066 }; 2067 struct wpa_signal_info *sig_change = arg; 2068 2069 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2070 genlmsg_attrlen(gnlh, 0), NULL); 2071 2072 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2073 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2074 return NL_SKIP; 2075 } 2076 2077 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2078 tb[NL80211_ATTR_SURVEY_INFO], 2079 survey_policy)) { 2080 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2081 "attributes!"); 2082 return NL_SKIP; 2083 } 2084 2085 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2086 return NL_SKIP; 2087 2088 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2089 sig_change->frequency) 2090 return NL_SKIP; 2091 2092 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2093 return NL_SKIP; 2094 2095 sig_change->current_noise = 2096 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2097 2098 return NL_SKIP; 2099} 2100 2101 2102static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2103 struct wpa_signal_info *sig_change) 2104{ 2105 struct nl_msg *msg; 2106 2107 sig_change->current_noise = 9999; 2108 sig_change->frequency = drv->assoc_freq; 2109 2110 msg = nlmsg_alloc(); 2111 if (!msg) 2112 return -ENOMEM; 2113 2114 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2115 2116 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2117 2118 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2119 nla_put_failure: 2120 nlmsg_free(msg); 2121 return -ENOBUFS; 2122} 2123 2124 2125static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2126{ 2127 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2128 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2129 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2130 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2131 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2132 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2133 }; 2134 struct wpa_scan_results *scan_results = arg; 2135 struct wpa_scan_res *scan_res; 2136 size_t i; 2137 2138 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2139 genlmsg_attrlen(gnlh, 0), NULL); 2140 2141 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2142 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2143 return NL_SKIP; 2144 } 2145 2146 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2147 tb[NL80211_ATTR_SURVEY_INFO], 2148 survey_policy)) { 2149 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2150 "attributes"); 2151 return NL_SKIP; 2152 } 2153 2154 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2155 return NL_SKIP; 2156 2157 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2158 return NL_SKIP; 2159 2160 for (i = 0; i < scan_results->num; ++i) { 2161 scan_res = scan_results->res[i]; 2162 if (!scan_res) 2163 continue; 2164 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2165 scan_res->freq) 2166 continue; 2167 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2168 continue; 2169 scan_res->noise = (s8) 2170 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2171 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2172 } 2173 2174 return NL_SKIP; 2175} 2176 2177 2178static int nl80211_get_noise_for_scan_results( 2179 struct wpa_driver_nl80211_data *drv, 2180 struct wpa_scan_results *scan_res) 2181{ 2182 struct nl_msg *msg; 2183 2184 msg = nlmsg_alloc(); 2185 if (!msg) 2186 return -ENOMEM; 2187 2188 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2189 2190 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2191 2192 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2193 scan_res); 2194 nla_put_failure: 2195 nlmsg_free(msg); 2196 return -ENOBUFS; 2197} 2198 2199 2200static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2201 struct nlattr *tb[]) 2202{ 2203 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2204 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2205 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2206 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2207 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2208 }; 2209 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2210 enum nl80211_cqm_rssi_threshold_event event; 2211 union wpa_event_data ed; 2212 struct wpa_signal_info sig; 2213 int res; 2214 2215 if (tb[NL80211_ATTR_CQM] == NULL || 2216 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2217 cqm_policy)) { 2218 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2219 return; 2220 } 2221 2222 os_memset(&ed, 0, sizeof(ed)); 2223 2224 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2225 if (!tb[NL80211_ATTR_MAC]) 2226 return; 2227 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2228 ETH_ALEN); 2229 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2230 return; 2231 } 2232 2233 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2234 return; 2235 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2236 2237 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2238 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2239 "event: RSSI high"); 2240 ed.signal_change.above_threshold = 1; 2241 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2242 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2243 "event: RSSI low"); 2244 ed.signal_change.above_threshold = 0; 2245 } else 2246 return; 2247 2248 res = nl80211_get_link_signal(drv, &sig); 2249 if (res == 0) { 2250 ed.signal_change.current_signal = sig.current_signal; 2251 ed.signal_change.current_txrate = sig.current_txrate; 2252 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2253 sig.current_signal, sig.current_txrate); 2254 } 2255 2256 res = nl80211_get_link_noise(drv, &sig); 2257 if (res == 0) { 2258 ed.signal_change.current_noise = sig.current_noise; 2259 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2260 sig.current_noise); 2261 } 2262 2263 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2264} 2265 2266 2267static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2268 struct nlattr **tb) 2269{ 2270 u8 *addr; 2271 union wpa_event_data data; 2272 2273 if (tb[NL80211_ATTR_MAC] == NULL) 2274 return; 2275 addr = nla_data(tb[NL80211_ATTR_MAC]); 2276 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2277 2278 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2279 u8 *ies = NULL; 2280 size_t ies_len = 0; 2281 if (tb[NL80211_ATTR_IE]) { 2282 ies = nla_data(tb[NL80211_ATTR_IE]); 2283 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2284 } 2285 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2286 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2287 return; 2288 } 2289 2290 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2291 return; 2292 2293 os_memset(&data, 0, sizeof(data)); 2294 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2295 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2296} 2297 2298 2299static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2300 struct nlattr **tb) 2301{ 2302 u8 *addr; 2303 union wpa_event_data data; 2304 2305 if (tb[NL80211_ATTR_MAC] == NULL) 2306 return; 2307 addr = nla_data(tb[NL80211_ATTR_MAC]); 2308 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2309 MAC2STR(addr)); 2310 2311 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2312 drv_event_disassoc(drv->ctx, addr); 2313 return; 2314 } 2315 2316 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2317 return; 2318 2319 os_memset(&data, 0, sizeof(data)); 2320 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2321 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2322} 2323 2324 2325static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2326 struct nlattr **tb) 2327{ 2328 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2329 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2330 [NL80211_REKEY_DATA_KEK] = { 2331 .minlen = NL80211_KEK_LEN, 2332 .maxlen = NL80211_KEK_LEN, 2333 }, 2334 [NL80211_REKEY_DATA_KCK] = { 2335 .minlen = NL80211_KCK_LEN, 2336 .maxlen = NL80211_KCK_LEN, 2337 }, 2338 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2339 .minlen = NL80211_REPLAY_CTR_LEN, 2340 .maxlen = NL80211_REPLAY_CTR_LEN, 2341 }, 2342 }; 2343 union wpa_event_data data; 2344 2345 if (!tb[NL80211_ATTR_MAC]) 2346 return; 2347 if (!tb[NL80211_ATTR_REKEY_DATA]) 2348 return; 2349 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2350 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2351 return; 2352 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2353 return; 2354 2355 os_memset(&data, 0, sizeof(data)); 2356 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2357 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2358 MAC2STR(data.driver_gtk_rekey.bssid)); 2359 data.driver_gtk_rekey.replay_ctr = 2360 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2361 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2362 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2363 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2364} 2365 2366 2367static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2368 struct nlattr **tb) 2369{ 2370 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2371 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2372 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2373 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2374 .minlen = ETH_ALEN, 2375 .maxlen = ETH_ALEN, 2376 }, 2377 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2378 }; 2379 union wpa_event_data data; 2380 2381 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2382 2383 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2384 return; 2385 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2386 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2387 return; 2388 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2389 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2390 return; 2391 2392 os_memset(&data, 0, sizeof(data)); 2393 os_memcpy(data.pmkid_candidate.bssid, 2394 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2395 data.pmkid_candidate.index = 2396 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2397 data.pmkid_candidate.preauth = 2398 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2399 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2400} 2401 2402 2403static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2404 struct nlattr **tb) 2405{ 2406 union wpa_event_data data; 2407 2408 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2409 2410 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2411 return; 2412 2413 os_memset(&data, 0, sizeof(data)); 2414 os_memcpy(data.client_poll.addr, 2415 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2416 2417 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2418} 2419 2420 2421static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2422 struct nlattr **tb) 2423{ 2424 union wpa_event_data data; 2425 2426 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2427 2428 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2429 return; 2430 2431 os_memset(&data, 0, sizeof(data)); 2432 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2433 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2434 case NL80211_TDLS_SETUP: 2435 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2436 MACSTR, MAC2STR(data.tdls.peer)); 2437 data.tdls.oper = TDLS_REQUEST_SETUP; 2438 break; 2439 case NL80211_TDLS_TEARDOWN: 2440 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2441 MACSTR, MAC2STR(data.tdls.peer)); 2442 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2443 break; 2444 default: 2445 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2446 "event"); 2447 return; 2448 } 2449 if (tb[NL80211_ATTR_REASON_CODE]) { 2450 data.tdls.reason_code = 2451 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2452 } 2453 2454 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2455} 2456 2457 2458static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2459 struct nlattr **tb) 2460{ 2461 union wpa_event_data data; 2462 u32 reason; 2463 2464 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2465 2466 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2467 return; 2468 2469 os_memset(&data, 0, sizeof(data)); 2470 os_memcpy(data.connect_failed_reason.addr, 2471 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2472 2473 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2474 switch (reason) { 2475 case NL80211_CONN_FAIL_MAX_CLIENTS: 2476 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2477 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2478 break; 2479 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2480 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2481 " tried to connect", 2482 MAC2STR(data.connect_failed_reason.addr)); 2483 data.connect_failed_reason.code = BLOCKED_CLIENT; 2484 break; 2485 default: 2486 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2487 "%u", reason); 2488 return; 2489 } 2490 2491 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2492} 2493 2494 2495static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2496 struct nlattr **tb) 2497{ 2498 union wpa_event_data data; 2499 enum nl80211_radar_event event_type; 2500 2501 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2502 return; 2503 2504 os_memset(&data, 0, sizeof(data)); 2505 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2506 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2507 2508 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2509 data.dfs_event.freq); 2510 2511 switch (event_type) { 2512 case NL80211_RADAR_DETECTED: 2513 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2514 break; 2515 case NL80211_RADAR_CAC_FINISHED: 2516 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2517 break; 2518 case NL80211_RADAR_CAC_ABORTED: 2519 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2520 break; 2521 case NL80211_RADAR_NOP_FINISHED: 2522 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2523 break; 2524 default: 2525 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2526 "received", event_type); 2527 break; 2528 } 2529} 2530 2531 2532static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2533 int wds) 2534{ 2535 struct wpa_driver_nl80211_data *drv = bss->drv; 2536 union wpa_event_data event; 2537 2538 if (!tb[NL80211_ATTR_MAC]) 2539 return; 2540 2541 os_memset(&event, 0, sizeof(event)); 2542 event.rx_from_unknown.bssid = bss->addr; 2543 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2544 event.rx_from_unknown.wds = wds; 2545 2546 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2547} 2548 2549 2550static void do_process_drv_event(struct i802_bss *bss, int cmd, 2551 struct nlattr **tb) 2552{ 2553 struct wpa_driver_nl80211_data *drv = bss->drv; 2554 2555 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2556 cmd, nl80211_command_to_string(cmd), bss->ifname); 2557 2558 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2559 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2560 cmd == NL80211_CMD_SCAN_ABORTED)) { 2561 wpa_driver_nl80211_set_mode(&drv->first_bss, 2562 drv->ap_scan_as_station); 2563 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2564 } 2565 2566 switch (cmd) { 2567 case NL80211_CMD_TRIGGER_SCAN: 2568 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2569 break; 2570 case NL80211_CMD_START_SCHED_SCAN: 2571 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2572 break; 2573 case NL80211_CMD_SCHED_SCAN_STOPPED: 2574 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2575 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2576 break; 2577 case NL80211_CMD_NEW_SCAN_RESULTS: 2578 wpa_dbg(drv->ctx, MSG_DEBUG, 2579 "nl80211: New scan results available"); 2580 drv->scan_complete_events = 1; 2581 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2582 drv->ctx); 2583 send_scan_event(drv, 0, tb); 2584 break; 2585 case NL80211_CMD_SCHED_SCAN_RESULTS: 2586 wpa_dbg(drv->ctx, MSG_DEBUG, 2587 "nl80211: New sched scan results available"); 2588 send_scan_event(drv, 0, tb); 2589 break; 2590 case NL80211_CMD_SCAN_ABORTED: 2591 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2592 /* 2593 * Need to indicate that scan results are available in order 2594 * not to make wpa_supplicant stop its scanning. 2595 */ 2596 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2597 drv->ctx); 2598 send_scan_event(drv, 1, tb); 2599 break; 2600 case NL80211_CMD_AUTHENTICATE: 2601 case NL80211_CMD_ASSOCIATE: 2602 case NL80211_CMD_DEAUTHENTICATE: 2603 case NL80211_CMD_DISASSOCIATE: 2604 case NL80211_CMD_FRAME_TX_STATUS: 2605 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2606 case NL80211_CMD_UNPROT_DISASSOCIATE: 2607 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2608 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2609 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2610 tb[NL80211_ATTR_COOKIE], 2611 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2612 break; 2613 case NL80211_CMD_CONNECT: 2614 case NL80211_CMD_ROAM: 2615 mlme_event_connect(drv, cmd, 2616 tb[NL80211_ATTR_STATUS_CODE], 2617 tb[NL80211_ATTR_MAC], 2618 tb[NL80211_ATTR_REQ_IE], 2619 tb[NL80211_ATTR_RESP_IE]); 2620 break; 2621 case NL80211_CMD_CH_SWITCH_NOTIFY: 2622 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2623 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2624 break; 2625 case NL80211_CMD_DISCONNECT: 2626 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2627 tb[NL80211_ATTR_MAC], 2628 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2629 break; 2630 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2631 mlme_event_michael_mic_failure(bss, tb); 2632 break; 2633 case NL80211_CMD_JOIN_IBSS: 2634 mlme_event_join_ibss(drv, tb); 2635 break; 2636 case NL80211_CMD_REMAIN_ON_CHANNEL: 2637 mlme_event_remain_on_channel(drv, 0, tb); 2638 break; 2639 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2640 mlme_event_remain_on_channel(drv, 1, tb); 2641 break; 2642 case NL80211_CMD_NOTIFY_CQM: 2643 nl80211_cqm_event(drv, tb); 2644 break; 2645 case NL80211_CMD_REG_CHANGE: 2646 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2647 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2648 NULL); 2649 break; 2650 case NL80211_CMD_REG_BEACON_HINT: 2651 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2652 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2653 NULL); 2654 break; 2655 case NL80211_CMD_NEW_STATION: 2656 nl80211_new_station_event(drv, tb); 2657 break; 2658 case NL80211_CMD_DEL_STATION: 2659 nl80211_del_station_event(drv, tb); 2660 break; 2661 case NL80211_CMD_SET_REKEY_OFFLOAD: 2662 nl80211_rekey_offload_event(drv, tb); 2663 break; 2664 case NL80211_CMD_PMKSA_CANDIDATE: 2665 nl80211_pmksa_candidate_event(drv, tb); 2666 break; 2667 case NL80211_CMD_PROBE_CLIENT: 2668 nl80211_client_probe_event(drv, tb); 2669 break; 2670 case NL80211_CMD_TDLS_OPER: 2671 nl80211_tdls_oper_event(drv, tb); 2672 break; 2673 case NL80211_CMD_CONN_FAILED: 2674 nl80211_connect_failed_event(drv, tb); 2675 break; 2676 case NL80211_CMD_FT_EVENT: 2677 mlme_event_ft_event(drv, tb); 2678 break; 2679 case NL80211_CMD_RADAR_DETECT: 2680 nl80211_radar_event(drv, tb); 2681 break; 2682 default: 2683 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2684 "(cmd=%d)", cmd); 2685 break; 2686 } 2687} 2688 2689 2690static int process_drv_event(struct nl_msg *msg, void *arg) 2691{ 2692 struct wpa_driver_nl80211_data *drv = arg; 2693 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2694 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2695 struct i802_bss *bss; 2696 int ifidx = -1; 2697 2698 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2699 genlmsg_attrlen(gnlh, 0), NULL); 2700 2701 if (tb[NL80211_ATTR_IFINDEX]) { 2702 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2703 2704 for (bss = &drv->first_bss; bss; bss = bss->next) 2705 if (ifidx == -1 || ifidx == bss->ifindex) { 2706 do_process_drv_event(bss, gnlh->cmd, tb); 2707 return NL_SKIP; 2708 } 2709 wpa_printf(MSG_DEBUG, 2710 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2711 gnlh->cmd, ifidx); 2712 } else if (tb[NL80211_ATTR_WDEV]) { 2713 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2714 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2715 for (bss = &drv->first_bss; bss; bss = bss->next) { 2716 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2717 do_process_drv_event(bss, gnlh->cmd, tb); 2718 return NL_SKIP; 2719 } 2720 } 2721 wpa_printf(MSG_DEBUG, 2722 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2723 gnlh->cmd, (long long unsigned int) wdev_id); 2724 } 2725 2726 return NL_SKIP; 2727} 2728 2729 2730static int process_global_event(struct nl_msg *msg, void *arg) 2731{ 2732 struct nl80211_global *global = arg; 2733 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2734 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2735 struct wpa_driver_nl80211_data *drv, *tmp; 2736 int ifidx = -1; 2737 struct i802_bss *bss; 2738 u64 wdev_id = 0; 2739 int wdev_id_set = 0; 2740 2741 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2742 genlmsg_attrlen(gnlh, 0), NULL); 2743 2744 if (tb[NL80211_ATTR_IFINDEX]) 2745 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2746 else if (tb[NL80211_ATTR_WDEV]) { 2747 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2748 wdev_id_set = 1; 2749 } 2750 2751 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2752 struct wpa_driver_nl80211_data, list) { 2753 for (bss = &drv->first_bss; bss; bss = bss->next) { 2754 if ((ifidx == -1 && !wdev_id_set) || 2755 ifidx == bss->ifindex || 2756 (wdev_id_set && bss->wdev_id_set && 2757 wdev_id == bss->wdev_id)) { 2758 do_process_drv_event(bss, gnlh->cmd, tb); 2759 return NL_SKIP; 2760 } 2761 } 2762 } 2763 2764 return NL_SKIP; 2765} 2766 2767 2768static int process_bss_event(struct nl_msg *msg, void *arg) 2769{ 2770 struct i802_bss *bss = arg; 2771 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2772 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2773 2774 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2775 genlmsg_attrlen(gnlh, 0), NULL); 2776 2777 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2778 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2779 bss->ifname); 2780 2781 switch (gnlh->cmd) { 2782 case NL80211_CMD_FRAME: 2783 case NL80211_CMD_FRAME_TX_STATUS: 2784 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2785 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2786 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2787 tb[NL80211_ATTR_COOKIE], 2788 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2789 break; 2790 case NL80211_CMD_UNEXPECTED_FRAME: 2791 nl80211_spurious_frame(bss, tb, 0); 2792 break; 2793 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2794 nl80211_spurious_frame(bss, tb, 1); 2795 break; 2796 default: 2797 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2798 "(cmd=%d)", gnlh->cmd); 2799 break; 2800 } 2801 2802 return NL_SKIP; 2803} 2804 2805 2806static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2807 void *handle) 2808{ 2809 struct nl_cb *cb = eloop_ctx; 2810 2811 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2812 2813 nl_recvmsgs(handle, cb); 2814} 2815 2816 2817/** 2818 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2819 * @priv: driver_nl80211 private data 2820 * @alpha2_arg: country to which to switch to 2821 * Returns: 0 on success, -1 on failure 2822 * 2823 * This asks nl80211 to set the regulatory domain for given 2824 * country ISO / IEC alpha2. 2825 */ 2826static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2827{ 2828 struct i802_bss *bss = priv; 2829 struct wpa_driver_nl80211_data *drv = bss->drv; 2830 char alpha2[3]; 2831 struct nl_msg *msg; 2832 2833 msg = nlmsg_alloc(); 2834 if (!msg) 2835 return -ENOMEM; 2836 2837 alpha2[0] = alpha2_arg[0]; 2838 alpha2[1] = alpha2_arg[1]; 2839 alpha2[2] = '\0'; 2840 2841 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2842 2843 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2844 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2845 return -EINVAL; 2846 return 0; 2847nla_put_failure: 2848 nlmsg_free(msg); 2849 return -EINVAL; 2850} 2851 2852 2853static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2854{ 2855 u32 *feat = arg; 2856 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2857 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2858 2859 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2860 genlmsg_attrlen(gnlh, 0), NULL); 2861 2862 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2863 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2864 2865 return NL_SKIP; 2866} 2867 2868 2869static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2870{ 2871 u32 feat = 0; 2872 struct nl_msg *msg; 2873 2874 msg = nlmsg_alloc(); 2875 if (!msg) 2876 goto nla_put_failure; 2877 2878 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2879 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2880 return feat; 2881 2882 msg = NULL; 2883nla_put_failure: 2884 nlmsg_free(msg); 2885 return 0; 2886} 2887 2888 2889struct wiphy_info_data { 2890 struct wpa_driver_nl80211_data *drv; 2891 struct wpa_driver_capa *capa; 2892 2893 unsigned int num_multichan_concurrent; 2894 2895 unsigned int error:1; 2896 unsigned int device_ap_sme:1; 2897 unsigned int poll_command_supported:1; 2898 unsigned int data_tx_status:1; 2899 unsigned int monitor_supported:1; 2900 unsigned int auth_supported:1; 2901 unsigned int connect_supported:1; 2902 unsigned int p2p_go_supported:1; 2903 unsigned int p2p_client_supported:1; 2904 unsigned int p2p_concurrent:1; 2905}; 2906 2907 2908static unsigned int probe_resp_offload_support(int supp_protocols) 2909{ 2910 unsigned int prot = 0; 2911 2912 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2913 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2914 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2915 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2916 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2917 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2918 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2919 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2920 2921 return prot; 2922} 2923 2924 2925static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2926 struct nlattr *tb) 2927{ 2928 struct nlattr *nl_mode; 2929 int i; 2930 2931 if (tb == NULL) 2932 return; 2933 2934 nla_for_each_nested(nl_mode, tb, i) { 2935 switch (nla_type(nl_mode)) { 2936 case NL80211_IFTYPE_AP: 2937 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2938 break; 2939 case NL80211_IFTYPE_ADHOC: 2940 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2941 break; 2942 case NL80211_IFTYPE_P2P_DEVICE: 2943 info->capa->flags |= 2944 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 2945 break; 2946 case NL80211_IFTYPE_P2P_GO: 2947 info->p2p_go_supported = 1; 2948 break; 2949 case NL80211_IFTYPE_P2P_CLIENT: 2950 info->p2p_client_supported = 1; 2951 break; 2952 case NL80211_IFTYPE_MONITOR: 2953 info->monitor_supported = 1; 2954 break; 2955 } 2956 } 2957} 2958 2959 2960static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2961 struct nlattr *nl_combi) 2962{ 2963 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2964 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2965 struct nlattr *nl_limit, *nl_mode; 2966 int err, rem_limit, rem_mode; 2967 int combination_has_p2p = 0, combination_has_mgd = 0; 2968 static struct nla_policy 2969 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2970 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2971 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2972 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2973 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2974 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 2975 }, 2976 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2977 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2978 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2979 }; 2980 2981 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2982 nl_combi, iface_combination_policy); 2983 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2984 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2985 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2986 return 0; /* broken combination */ 2987 2988 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 2989 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 2990 2991 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 2992 rem_limit) { 2993 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 2994 nl_limit, iface_limit_policy); 2995 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 2996 return 0; /* broken combination */ 2997 2998 nla_for_each_nested(nl_mode, 2999 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3000 rem_mode) { 3001 int ift = nla_type(nl_mode); 3002 if (ift == NL80211_IFTYPE_P2P_GO || 3003 ift == NL80211_IFTYPE_P2P_CLIENT) 3004 combination_has_p2p = 1; 3005 if (ift == NL80211_IFTYPE_STATION) 3006 combination_has_mgd = 1; 3007 } 3008 if (combination_has_p2p && combination_has_mgd) 3009 break; 3010 } 3011 3012 if (combination_has_p2p && combination_has_mgd) { 3013 info->p2p_concurrent = 1; 3014 info->num_multichan_concurrent = 3015 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3016 return 1; 3017 } 3018 3019 return 0; 3020} 3021 3022 3023static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3024 struct nlattr *tb) 3025{ 3026 struct nlattr *nl_combi; 3027 int rem_combi; 3028 3029 if (tb == NULL) 3030 return; 3031 3032 nla_for_each_nested(nl_combi, tb, rem_combi) { 3033 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3034 break; 3035 } 3036} 3037 3038 3039static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3040 struct nlattr *tb) 3041{ 3042 struct nlattr *nl_cmd; 3043 int i; 3044 3045 if (tb == NULL) 3046 return; 3047 3048 nla_for_each_nested(nl_cmd, tb, i) { 3049 switch (nla_get_u32(nl_cmd)) { 3050 case NL80211_CMD_AUTHENTICATE: 3051 info->auth_supported = 1; 3052 break; 3053 case NL80211_CMD_CONNECT: 3054 info->connect_supported = 1; 3055 break; 3056 case NL80211_CMD_START_SCHED_SCAN: 3057 info->capa->sched_scan_supported = 1; 3058 break; 3059 case NL80211_CMD_PROBE_CLIENT: 3060 info->poll_command_supported = 1; 3061 break; 3062 } 3063 } 3064} 3065 3066 3067static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3068 struct nlattr *tb) 3069{ 3070 if (tb) 3071 capa->max_remain_on_chan = nla_get_u32(tb); 3072} 3073 3074 3075static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3076 struct nlattr *ext_setup) 3077{ 3078 if (tdls == NULL) 3079 return; 3080 3081 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3082 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3083 3084 if (ext_setup) { 3085 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3086 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3087 } 3088} 3089 3090 3091static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3092 struct nlattr *tb) 3093{ 3094 u32 flags; 3095 struct wpa_driver_capa *capa = info->capa; 3096 3097 if (tb == NULL) 3098 return; 3099 3100 flags = nla_get_u32(tb); 3101 3102 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3103 info->data_tx_status = 1; 3104 3105 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3106 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3107 3108 if (flags & NL80211_FEATURE_SAE) 3109 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3110 3111 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3112 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3113} 3114 3115 3116static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3117 struct nlattr *tb) 3118{ 3119 u32 protocols; 3120 3121 if (tb == NULL) 3122 return; 3123 3124 protocols = nla_get_u32(tb); 3125 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3126 "mode"); 3127 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3128 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3129} 3130 3131 3132static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3133{ 3134 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3135 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3136 struct wiphy_info_data *info = arg; 3137 struct wpa_driver_capa *capa = info->capa; 3138 struct wpa_driver_nl80211_data *drv = info->drv; 3139 3140 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3141 genlmsg_attrlen(gnlh, 0), NULL); 3142 3143 if (tb[NL80211_ATTR_WIPHY_NAME]) 3144 os_strncpy(drv->phyname, 3145 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3146 sizeof(drv->phyname)); 3147 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3148 capa->max_scan_ssids = 3149 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3150 3151 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3152 capa->max_sched_scan_ssids = 3153 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3154 3155 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3156 capa->max_match_sets = 3157 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3158 3159 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3160 capa->max_acl_mac_addrs = 3161 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3162 3163 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3164 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3165 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3166 3167 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3168 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3169 "off-channel TX"); 3170 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3171 } 3172 3173 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3174 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3175 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3176 } 3177 3178 wiphy_info_max_roc(capa, 3179 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3180 3181 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3182 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3183 3184 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3185 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3186 3187 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3188 info->device_ap_sme = 1; 3189 3190 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3191 wiphy_info_probe_resp_offload(capa, 3192 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3193 3194 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3195 drv->extended_capa == NULL) { 3196 drv->extended_capa = 3197 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3198 if (drv->extended_capa) { 3199 os_memcpy(drv->extended_capa, 3200 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3201 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3202 drv->extended_capa_len = 3203 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3204 } 3205 drv->extended_capa_mask = 3206 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3207 if (drv->extended_capa_mask) { 3208 os_memcpy(drv->extended_capa_mask, 3209 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3210 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3211 } else { 3212 os_free(drv->extended_capa); 3213 drv->extended_capa = NULL; 3214 drv->extended_capa_len = 0; 3215 } 3216 } 3217 3218 return NL_SKIP; 3219} 3220 3221 3222static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3223 struct wiphy_info_data *info) 3224{ 3225 u32 feat; 3226 struct nl_msg *msg; 3227 3228 os_memset(info, 0, sizeof(*info)); 3229 info->capa = &drv->capa; 3230 info->drv = drv; 3231 3232 msg = nlmsg_alloc(); 3233 if (!msg) 3234 return -1; 3235 3236 feat = get_nl80211_protocol_features(drv); 3237 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3238 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3239 else 3240 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3241 3242 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3243 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3244 goto nla_put_failure; 3245 3246 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3247 return -1; 3248 3249 if (info->auth_supported) 3250 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3251 else if (!info->connect_supported) { 3252 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3253 "authentication/association or connect commands"); 3254 info->error = 1; 3255 } 3256 3257 if (info->p2p_go_supported && info->p2p_client_supported) 3258 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3259 if (info->p2p_concurrent) { 3260 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3261 "interface (driver advertised support)"); 3262 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3263 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3264 } 3265 if (info->num_multichan_concurrent > 1) { 3266 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3267 "concurrent (driver advertised support)"); 3268 drv->capa.num_multichan_concurrent = 3269 info->num_multichan_concurrent; 3270 } 3271 3272 /* default to 5000 since early versions of mac80211 don't set it */ 3273 if (!drv->capa.max_remain_on_chan) 3274 drv->capa.max_remain_on_chan = 5000; 3275 3276 return 0; 3277nla_put_failure: 3278 nlmsg_free(msg); 3279 return -1; 3280} 3281 3282 3283static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3284{ 3285 struct wiphy_info_data info; 3286 if (wpa_driver_nl80211_get_info(drv, &info)) 3287 return -1; 3288 3289 if (info.error) 3290 return -1; 3291 3292 drv->has_capability = 1; 3293 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3294 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3295 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3296 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3297 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3298 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3299 WPA_DRIVER_CAPA_ENC_WEP104 | 3300 WPA_DRIVER_CAPA_ENC_TKIP | 3301 WPA_DRIVER_CAPA_ENC_CCMP; 3302 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3303 WPA_DRIVER_AUTH_SHARED | 3304 WPA_DRIVER_AUTH_LEAP; 3305 3306 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3307 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3308 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3309 3310 if (!info.device_ap_sme) { 3311 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3312 3313 /* 3314 * No AP SME is currently assumed to also indicate no AP MLME 3315 * in the driver/firmware. 3316 */ 3317 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3318 } 3319 3320 drv->device_ap_sme = info.device_ap_sme; 3321 drv->poll_command_supported = info.poll_command_supported; 3322 drv->data_tx_status = info.data_tx_status; 3323 3324#ifdef ANDROID_P2P 3325 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3326 /* Driver is new enough to support monitorless mode*/ 3327 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3328 "enough to support monitor-less mode"); 3329 drv->use_monitor = 0; 3330 } 3331#else 3332 /* 3333 * If poll command and tx status are supported, mac80211 is new enough 3334 * to have everything we need to not need monitor interfaces. 3335 */ 3336 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3337#endif 3338 3339 if (drv->device_ap_sme && drv->use_monitor) { 3340 /* 3341 * Non-mac80211 drivers may not support monitor interface. 3342 * Make sure we do not get stuck with incorrect capability here 3343 * by explicitly testing this. 3344 */ 3345 if (!info.monitor_supported) { 3346 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3347 "with device_ap_sme since no monitor mode " 3348 "support detected"); 3349 drv->use_monitor = 0; 3350 } 3351 } 3352 3353 /* 3354 * If we aren't going to use monitor interfaces, but the 3355 * driver doesn't support data TX status, we won't get TX 3356 * status for EAPOL frames. 3357 */ 3358 if (!drv->use_monitor && !info.data_tx_status) 3359 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3360 3361 return 0; 3362} 3363 3364 3365#ifdef ANDROID 3366static int android_genl_ctrl_resolve(struct nl_handle *handle, 3367 const char *name) 3368{ 3369 /* 3370 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3371 * need to work around that. 3372 */ 3373 struct nl_cache *cache = NULL; 3374 struct genl_family *nl80211 = NULL; 3375 int id = -1; 3376 3377 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3378 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3379 "netlink cache"); 3380 goto fail; 3381 } 3382 3383 nl80211 = genl_ctrl_search_by_name(cache, name); 3384 if (nl80211 == NULL) 3385 goto fail; 3386 3387 id = genl_family_get_id(nl80211); 3388 3389fail: 3390 if (nl80211) 3391 genl_family_put(nl80211); 3392 if (cache) 3393 nl_cache_free(cache); 3394 3395 return id; 3396} 3397#define genl_ctrl_resolve android_genl_ctrl_resolve 3398#endif /* ANDROID */ 3399 3400 3401static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3402{ 3403 int ret; 3404 3405 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3406 if (global->nl_cb == NULL) { 3407 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3408 "callbacks"); 3409 return -1; 3410 } 3411 3412 global->nl = nl_create_handle(global->nl_cb, "nl"); 3413 if (global->nl == NULL) 3414 goto err; 3415 3416 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3417 if (global->nl80211_id < 0) { 3418 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3419 "found"); 3420 goto err; 3421 } 3422 3423 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3424 if (global->nl_event == NULL) 3425 goto err; 3426 3427 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3428 if (ret >= 0) 3429 ret = nl_socket_add_membership(global->nl_event, ret); 3430 if (ret < 0) { 3431 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3432 "membership for scan events: %d (%s)", 3433 ret, strerror(-ret)); 3434 goto err; 3435 } 3436 3437 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3438 if (ret >= 0) 3439 ret = nl_socket_add_membership(global->nl_event, ret); 3440 if (ret < 0) { 3441 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3442 "membership for mlme events: %d (%s)", 3443 ret, strerror(-ret)); 3444 goto err; 3445 } 3446 3447 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3448 if (ret >= 0) 3449 ret = nl_socket_add_membership(global->nl_event, ret); 3450 if (ret < 0) { 3451 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3452 "membership for regulatory events: %d (%s)", 3453 ret, strerror(-ret)); 3454 /* Continue without regulatory events */ 3455 } 3456 3457 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3458 no_seq_check, NULL); 3459 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3460 process_global_event, global); 3461 3462 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3463 wpa_driver_nl80211_event_receive, 3464 global->nl_cb, global->nl_event); 3465 3466 return 0; 3467 3468err: 3469 nl_destroy_handles(&global->nl_event); 3470 nl_destroy_handles(&global->nl); 3471 nl_cb_put(global->nl_cb); 3472 global->nl_cb = NULL; 3473 return -1; 3474} 3475 3476 3477static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3478{ 3479 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3480 if (!drv->nl_cb) { 3481 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3482 return -1; 3483 } 3484 3485 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3486 no_seq_check, NULL); 3487 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3488 process_drv_event, drv); 3489 3490 return 0; 3491} 3492 3493 3494static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3495{ 3496 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3497 /* 3498 * This may be for any interface; use ifdown event to disable 3499 * interface. 3500 */ 3501} 3502 3503 3504static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3505{ 3506 struct wpa_driver_nl80211_data *drv = ctx; 3507 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3508 if (linux_set_iface_flags(drv->global->ioctl_sock, 3509 drv->first_bss.ifname, 1)) { 3510 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3511 "after rfkill unblock"); 3512 return; 3513 } 3514 /* rtnetlink ifup handler will report interface as enabled */ 3515} 3516 3517 3518static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3519 void *eloop_ctx, 3520 void *handle) 3521{ 3522 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3523 u8 data[2048]; 3524 struct msghdr msg; 3525 struct iovec entry; 3526 u8 control[512]; 3527 struct cmsghdr *cmsg; 3528 int res, found_ee = 0, found_wifi = 0, acked = 0; 3529 union wpa_event_data event; 3530 3531 memset(&msg, 0, sizeof(msg)); 3532 msg.msg_iov = &entry; 3533 msg.msg_iovlen = 1; 3534 entry.iov_base = data; 3535 entry.iov_len = sizeof(data); 3536 msg.msg_control = &control; 3537 msg.msg_controllen = sizeof(control); 3538 3539 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3540 /* if error or not fitting 802.3 header, return */ 3541 if (res < 14) 3542 return; 3543 3544 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3545 { 3546 if (cmsg->cmsg_level == SOL_SOCKET && 3547 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3548 int *ack; 3549 3550 found_wifi = 1; 3551 ack = (void *)CMSG_DATA(cmsg); 3552 acked = *ack; 3553 } 3554 3555 if (cmsg->cmsg_level == SOL_PACKET && 3556 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3557 struct sock_extended_err *err = 3558 (struct sock_extended_err *)CMSG_DATA(cmsg); 3559 3560 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3561 found_ee = 1; 3562 } 3563 } 3564 3565 if (!found_ee || !found_wifi) 3566 return; 3567 3568 memset(&event, 0, sizeof(event)); 3569 event.eapol_tx_status.dst = data; 3570 event.eapol_tx_status.data = data + 14; 3571 event.eapol_tx_status.data_len = res - 14; 3572 event.eapol_tx_status.ack = acked; 3573 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3574} 3575 3576 3577static int nl80211_init_bss(struct i802_bss *bss) 3578{ 3579 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3580 if (!bss->nl_cb) 3581 return -1; 3582 3583 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3584 no_seq_check, NULL); 3585 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3586 process_bss_event, bss); 3587 3588 return 0; 3589} 3590 3591 3592static void nl80211_destroy_bss(struct i802_bss *bss) 3593{ 3594 nl_cb_put(bss->nl_cb); 3595 bss->nl_cb = NULL; 3596} 3597 3598 3599/** 3600 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3601 * @ctx: context to be used when calling wpa_supplicant functions, 3602 * e.g., wpa_supplicant_event() 3603 * @ifname: interface name, e.g., wlan0 3604 * @global_priv: private driver global data from global_init() 3605 * Returns: Pointer to private data, %NULL on failure 3606 */ 3607static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3608 void *global_priv) 3609{ 3610 struct wpa_driver_nl80211_data *drv; 3611 struct rfkill_config *rcfg; 3612 struct i802_bss *bss; 3613 3614 if (global_priv == NULL) 3615 return NULL; 3616 drv = os_zalloc(sizeof(*drv)); 3617 if (drv == NULL) 3618 return NULL; 3619 drv->global = global_priv; 3620 drv->ctx = ctx; 3621 bss = &drv->first_bss; 3622 bss->drv = drv; 3623 bss->ctx = ctx; 3624 3625 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3626 drv->monitor_ifidx = -1; 3627 drv->monitor_sock = -1; 3628 drv->eapol_tx_sock = -1; 3629 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3630 3631 if (wpa_driver_nl80211_init_nl(drv)) { 3632 os_free(drv); 3633 return NULL; 3634 } 3635 3636 if (nl80211_init_bss(bss)) 3637 goto failed; 3638 3639 rcfg = os_zalloc(sizeof(*rcfg)); 3640 if (rcfg == NULL) 3641 goto failed; 3642 rcfg->ctx = drv; 3643 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3644 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3645 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3646 drv->rfkill = rfkill_init(rcfg); 3647 if (drv->rfkill == NULL) { 3648 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3649 os_free(rcfg); 3650 } 3651 3652 if (wpa_driver_nl80211_finish_drv_init(drv)) 3653 goto failed; 3654 3655 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3656 if (drv->eapol_tx_sock < 0) 3657 goto failed; 3658 3659 if (drv->data_tx_status) { 3660 int enabled = 1; 3661 3662 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3663 &enabled, sizeof(enabled)) < 0) { 3664 wpa_printf(MSG_DEBUG, 3665 "nl80211: wifi status sockopt failed\n"); 3666 drv->data_tx_status = 0; 3667 if (!drv->use_monitor) 3668 drv->capa.flags &= 3669 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3670 } else { 3671 eloop_register_read_sock(drv->eapol_tx_sock, 3672 wpa_driver_nl80211_handle_eapol_tx_status, 3673 drv, NULL); 3674 } 3675 } 3676 3677 if (drv->global) { 3678 dl_list_add(&drv->global->interfaces, &drv->list); 3679 drv->in_interface_list = 1; 3680 } 3681 3682 return bss; 3683 3684failed: 3685 wpa_driver_nl80211_deinit(bss); 3686 return NULL; 3687} 3688 3689 3690static int nl80211_register_frame(struct i802_bss *bss, 3691 struct nl_handle *nl_handle, 3692 u16 type, const u8 *match, size_t match_len) 3693{ 3694 struct wpa_driver_nl80211_data *drv = bss->drv; 3695 struct nl_msg *msg; 3696 int ret = -1; 3697 3698 msg = nlmsg_alloc(); 3699 if (!msg) 3700 return -1; 3701 3702 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3703 type, nl_handle); 3704 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3705 match, match_len); 3706 3707 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3708 3709 if (nl80211_set_iface_id(msg, bss) < 0) 3710 goto nla_put_failure; 3711 3712 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3713 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3714 3715 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3716 msg = NULL; 3717 if (ret) { 3718 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3719 "failed (type=%u): ret=%d (%s)", 3720 type, ret, strerror(-ret)); 3721 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3722 match, match_len); 3723 goto nla_put_failure; 3724 } 3725 ret = 0; 3726nla_put_failure: 3727 nlmsg_free(msg); 3728 return ret; 3729} 3730 3731 3732static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3733{ 3734 struct wpa_driver_nl80211_data *drv = bss->drv; 3735 3736 if (bss->nl_mgmt) { 3737 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3738 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3739 return -1; 3740 } 3741 3742 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3743 if (bss->nl_mgmt == NULL) 3744 return -1; 3745 3746 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3747 wpa_driver_nl80211_event_receive, bss->nl_cb, 3748 bss->nl_mgmt); 3749 3750 return 0; 3751} 3752 3753 3754static int nl80211_register_action_frame(struct i802_bss *bss, 3755 const u8 *match, size_t match_len) 3756{ 3757 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3758 return nl80211_register_frame(bss, bss->nl_mgmt, 3759 type, match, match_len); 3760} 3761 3762 3763static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3764{ 3765 struct wpa_driver_nl80211_data *drv = bss->drv; 3766 3767 if (nl80211_alloc_mgmt_handle(bss)) 3768 return -1; 3769 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3770 "handle %p", bss->nl_mgmt); 3771 3772#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3773 /* GAS Initial Request */ 3774 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3775 return -1; 3776 /* GAS Initial Response */ 3777 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3778 return -1; 3779 /* GAS Comeback Request */ 3780 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3781 return -1; 3782 /* GAS Comeback Response */ 3783 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3784 return -1; 3785#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3786#ifdef CONFIG_P2P 3787 /* P2P Public Action */ 3788 if (nl80211_register_action_frame(bss, 3789 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3790 6) < 0) 3791 return -1; 3792 /* P2P Action */ 3793 if (nl80211_register_action_frame(bss, 3794 (u8 *) "\x7f\x50\x6f\x9a\x09", 3795 5) < 0) 3796 return -1; 3797#endif /* CONFIG_P2P */ 3798#ifdef CONFIG_IEEE80211W 3799 /* SA Query Response */ 3800 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3801 return -1; 3802#endif /* CONFIG_IEEE80211W */ 3803#ifdef CONFIG_TDLS 3804 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3805 /* TDLS Discovery Response */ 3806 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3807 0) 3808 return -1; 3809 } 3810#endif /* CONFIG_TDLS */ 3811 3812 /* FT Action frames */ 3813 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3814 return -1; 3815 else 3816 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3817 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3818 3819 /* WNM - BSS Transition Management Request */ 3820 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3821 return -1; 3822 /* WNM-Sleep Mode Response */ 3823 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3824 return -1; 3825 3826 return 0; 3827} 3828 3829 3830static int nl80211_register_spurious_class3(struct i802_bss *bss) 3831{ 3832 struct wpa_driver_nl80211_data *drv = bss->drv; 3833 struct nl_msg *msg; 3834 int ret = -1; 3835 3836 msg = nlmsg_alloc(); 3837 if (!msg) 3838 return -1; 3839 3840 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3841 3842 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3843 3844 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3845 msg = NULL; 3846 if (ret) { 3847 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3848 "failed: ret=%d (%s)", 3849 ret, strerror(-ret)); 3850 goto nla_put_failure; 3851 } 3852 ret = 0; 3853nla_put_failure: 3854 nlmsg_free(msg); 3855 return ret; 3856} 3857 3858 3859static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3860{ 3861 static const int stypes[] = { 3862 WLAN_FC_STYPE_AUTH, 3863 WLAN_FC_STYPE_ASSOC_REQ, 3864 WLAN_FC_STYPE_REASSOC_REQ, 3865 WLAN_FC_STYPE_DISASSOC, 3866 WLAN_FC_STYPE_DEAUTH, 3867 WLAN_FC_STYPE_ACTION, 3868 WLAN_FC_STYPE_PROBE_REQ, 3869/* Beacon doesn't work as mac80211 doesn't currently allow 3870 * it, but it wouldn't really be the right thing anyway as 3871 * it isn't per interface ... maybe just dump the scan 3872 * results periodically for OLBC? 3873 */ 3874// WLAN_FC_STYPE_BEACON, 3875 }; 3876 unsigned int i; 3877 3878 if (nl80211_alloc_mgmt_handle(bss)) 3879 return -1; 3880 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3881 "handle %p", bss->nl_mgmt); 3882 3883 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3884 if (nl80211_register_frame(bss, bss->nl_mgmt, 3885 (WLAN_FC_TYPE_MGMT << 2) | 3886 (stypes[i] << 4), 3887 NULL, 0) < 0) { 3888 goto out_err; 3889 } 3890 } 3891 3892 if (nl80211_register_spurious_class3(bss)) 3893 goto out_err; 3894 3895 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3896 goto out_err; 3897 3898 return 0; 3899 3900out_err: 3901 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3902 nl_destroy_handles(&bss->nl_mgmt); 3903 return -1; 3904} 3905 3906 3907static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3908{ 3909 if (nl80211_alloc_mgmt_handle(bss)) 3910 return -1; 3911 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3912 "handle %p (device SME)", bss->nl_mgmt); 3913 3914 if (nl80211_register_frame(bss, bss->nl_mgmt, 3915 (WLAN_FC_TYPE_MGMT << 2) | 3916 (WLAN_FC_STYPE_ACTION << 4), 3917 NULL, 0) < 0) 3918 goto out_err; 3919 3920 return 0; 3921 3922out_err: 3923 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3924 nl_destroy_handles(&bss->nl_mgmt); 3925 return -1; 3926} 3927 3928 3929static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3930{ 3931 if (bss->nl_mgmt == NULL) 3932 return; 3933 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3934 "(%s)", bss->nl_mgmt, reason); 3935 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3936 nl_destroy_handles(&bss->nl_mgmt); 3937 3938 nl80211_put_wiphy_data_ap(bss); 3939} 3940 3941 3942static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3943{ 3944 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3945} 3946 3947 3948static void nl80211_del_p2pdev(struct i802_bss *bss) 3949{ 3950 struct wpa_driver_nl80211_data *drv = bss->drv; 3951 struct nl_msg *msg; 3952 int ret; 3953 3954 msg = nlmsg_alloc(); 3955 if (!msg) 3956 return; 3957 3958 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 3959 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3960 3961 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3962 msg = NULL; 3963 3964 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 3965 bss->ifname, (long long unsigned int) bss->wdev_id, 3966 strerror(ret)); 3967 3968nla_put_failure: 3969 nlmsg_free(msg); 3970} 3971 3972 3973static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 3974{ 3975 struct wpa_driver_nl80211_data *drv = bss->drv; 3976 struct nl_msg *msg; 3977 int ret = -1; 3978 3979 msg = nlmsg_alloc(); 3980 if (!msg) 3981 return -1; 3982 3983 if (start) 3984 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 3985 else 3986 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 3987 3988 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3989 3990 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3991 msg = NULL; 3992 3993 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 3994 start ? "Start" : "Stop", 3995 bss->ifname, (long long unsigned int) bss->wdev_id, 3996 strerror(ret)); 3997 3998nla_put_failure: 3999 nlmsg_free(msg); 4000 return ret; 4001} 4002 4003 4004static int i802_set_iface_flags(struct i802_bss *bss, int up) 4005{ 4006 enum nl80211_iftype nlmode; 4007 4008 nlmode = nl80211_get_ifmode(bss); 4009 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4010 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4011 bss->ifname, up); 4012 } 4013 4014 /* P2P Device has start/stop which is equivalent */ 4015 return nl80211_set_p2pdev(bss, up); 4016} 4017 4018 4019static int 4020wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4021{ 4022#ifndef HOSTAPD 4023 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4024#endif /* HOSTAPD */ 4025 struct i802_bss *bss = &drv->first_bss; 4026 int send_rfkill_event = 0; 4027 int dynamic_if; 4028 4029 drv->ifindex = if_nametoindex(bss->ifname); 4030 bss->ifindex = drv->ifindex; 4031 bss->wdev_id = drv->global->if_add_wdevid; 4032 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4033 4034 dynamic_if = drv->ifindex == drv->global->if_add_ifindex; 4035 dynamic_if = dynamic_if || drv->global->if_add_wdevid_set; 4036 drv->global->if_add_wdevid_set = 0; 4037 4038 if (wpa_driver_nl80211_capa(drv)) 4039 return -1; 4040 4041 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4042 bss->ifname, drv->phyname); 4043 4044#ifndef HOSTAPD 4045 if (dynamic_if) 4046 nlmode = nl80211_get_ifmode(bss); 4047 4048 /* 4049 * Make sure the interface starts up in station mode unless this is a 4050 * dynamically added interface (e.g., P2P) that was already configured 4051 * with proper iftype. 4052 */ 4053 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4054 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4055 return -1; 4056 } 4057 drv->nlmode = nlmode; 4058 4059 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4060 int ret = nl80211_set_p2pdev(bss, 1); 4061 if (ret < 0) 4062 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4063 nl80211_get_macaddr(bss); 4064 return ret; 4065 } 4066 4067 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4068 if (rfkill_is_blocked(drv->rfkill)) { 4069 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4070 "interface '%s' due to rfkill", 4071 bss->ifname); 4072 drv->if_disabled = 1; 4073 send_rfkill_event = 1; 4074 } else { 4075 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4076 "interface '%s' UP", bss->ifname); 4077 return -1; 4078 } 4079 } 4080 4081 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4082 1, IF_OPER_DORMANT); 4083#endif /* HOSTAPD */ 4084 4085 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4086 bss->addr)) 4087 return -1; 4088 4089 if (send_rfkill_event) { 4090 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4091 drv, drv->ctx); 4092 } 4093 4094 return 0; 4095} 4096 4097 4098static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4099{ 4100 struct nl_msg *msg; 4101 4102 msg = nlmsg_alloc(); 4103 if (!msg) 4104 return -ENOMEM; 4105 4106 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4108 4109 return send_and_recv_msgs(drv, msg, NULL, NULL); 4110 nla_put_failure: 4111 nlmsg_free(msg); 4112 return -ENOBUFS; 4113} 4114 4115 4116/** 4117 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4118 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4119 * 4120 * Shut down driver interface and processing of driver events. Free 4121 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4122 */ 4123static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4124{ 4125 struct wpa_driver_nl80211_data *drv = bss->drv; 4126 4127 bss->in_deinit = 1; 4128 if (drv->data_tx_status) 4129 eloop_unregister_read_sock(drv->eapol_tx_sock); 4130 if (drv->eapol_tx_sock >= 0) 4131 close(drv->eapol_tx_sock); 4132 4133 if (bss->nl_preq) 4134 wpa_driver_nl80211_probe_req_report(bss, 0); 4135 if (bss->added_if_into_bridge) { 4136 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4137 bss->ifname) < 0) 4138 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4139 "interface %s from bridge %s: %s", 4140 bss->ifname, bss->brname, strerror(errno)); 4141 } 4142 if (bss->added_bridge) { 4143 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4144 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4145 "bridge %s: %s", 4146 bss->brname, strerror(errno)); 4147 } 4148 4149 nl80211_remove_monitor_interface(drv); 4150 4151 if (is_ap_interface(drv->nlmode)) 4152 wpa_driver_nl80211_del_beacon(drv); 4153 4154#ifdef HOSTAPD 4155 if (drv->last_freq_ht) { 4156 /* Clear HT flags from the driver */ 4157 struct hostapd_freq_params freq; 4158 os_memset(&freq, 0, sizeof(freq)); 4159 freq.freq = drv->last_freq; 4160 wpa_driver_nl80211_set_freq(bss, &freq); 4161 } 4162 4163 if (drv->eapol_sock >= 0) { 4164 eloop_unregister_read_sock(drv->eapol_sock); 4165 close(drv->eapol_sock); 4166 } 4167 4168 if (drv->if_indices != drv->default_if_indices) 4169 os_free(drv->if_indices); 4170#endif /* HOSTAPD */ 4171 4172 if (drv->disabled_11b_rates) 4173 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4174 4175 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4176 IF_OPER_UP); 4177 rfkill_deinit(drv->rfkill); 4178 4179 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4180 4181 (void) i802_set_iface_flags(bss, 0); 4182 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4183 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4184 } else { 4185 nl80211_mgmt_unsubscribe(bss, "deinit"); 4186 nl80211_del_p2pdev(bss); 4187 } 4188 nl_cb_put(drv->nl_cb); 4189 4190 nl80211_destroy_bss(&drv->first_bss); 4191 4192 os_free(drv->filter_ssids); 4193 4194 os_free(drv->auth_ie); 4195 4196 if (drv->in_interface_list) 4197 dl_list_del(&drv->list); 4198 4199 os_free(drv->extended_capa); 4200 os_free(drv->extended_capa_mask); 4201 os_free(drv); 4202} 4203 4204 4205/** 4206 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4207 * @eloop_ctx: Driver private data 4208 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4209 * 4210 * This function can be used as registered timeout when starting a scan to 4211 * generate a scan completed event if the driver does not report this. 4212 */ 4213static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4214{ 4215 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4216 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4217 wpa_driver_nl80211_set_mode(&drv->first_bss, 4218 drv->ap_scan_as_station); 4219 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4220 } 4221 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4222 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4223} 4224 4225 4226static struct nl_msg * 4227nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4228 struct wpa_driver_scan_params *params, u64 *wdev_id) 4229{ 4230 struct nl_msg *msg; 4231 size_t i; 4232 4233 msg = nlmsg_alloc(); 4234 if (!msg) 4235 return NULL; 4236 4237 nl80211_cmd(drv, msg, 0, cmd); 4238 4239 if (!wdev_id) 4240 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4241 else 4242 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4243 4244 if (params->num_ssids) { 4245 struct nlattr *ssids; 4246 4247 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4248 if (ssids == NULL) 4249 goto fail; 4250 for (i = 0; i < params->num_ssids; i++) { 4251 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4252 params->ssids[i].ssid, 4253 params->ssids[i].ssid_len); 4254 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4255 params->ssids[i].ssid) < 0) 4256 goto fail; 4257 } 4258 nla_nest_end(msg, ssids); 4259 } 4260 4261 if (params->extra_ies) { 4262 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4263 params->extra_ies, params->extra_ies_len); 4264 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4265 params->extra_ies) < 0) 4266 goto fail; 4267 } 4268 4269 if (params->freqs) { 4270 struct nlattr *freqs; 4271 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4272 if (freqs == NULL) 4273 goto fail; 4274 for (i = 0; params->freqs[i]; i++) { 4275 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4276 "MHz", params->freqs[i]); 4277 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4278 goto fail; 4279 } 4280 nla_nest_end(msg, freqs); 4281 } 4282 4283 os_free(drv->filter_ssids); 4284 drv->filter_ssids = params->filter_ssids; 4285 params->filter_ssids = NULL; 4286 drv->num_filter_ssids = params->num_filter_ssids; 4287 4288 return msg; 4289 4290fail: 4291nla_put_failure: 4292 nlmsg_free(msg); 4293 return NULL; 4294} 4295 4296 4297/** 4298 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4299 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4300 * @params: Scan parameters 4301 * Returns: 0 on success, -1 on failure 4302 */ 4303static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4304 struct wpa_driver_scan_params *params) 4305{ 4306 struct wpa_driver_nl80211_data *drv = bss->drv; 4307 int ret = -1, timeout; 4308 struct nl_msg *msg = NULL; 4309 4310 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4311 drv->scan_for_auth = 0; 4312 4313 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4314 bss->wdev_id_set ? &bss->wdev_id : NULL); 4315 if (!msg) 4316 return -1; 4317 4318 if (params->p2p_probe) { 4319 struct nlattr *rates; 4320 4321 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4322 4323 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4324 if (rates == NULL) 4325 goto nla_put_failure; 4326 4327 /* 4328 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4329 * by masking out everything else apart from the OFDM rates 6, 4330 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4331 * rates are left enabled. 4332 */ 4333 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4334 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4335 nla_nest_end(msg, rates); 4336 4337 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4338 } 4339 4340 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4341 msg = NULL; 4342 if (ret) { 4343 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4344 "(%s)", ret, strerror(-ret)); 4345#ifdef HOSTAPD 4346 if (is_ap_interface(drv->nlmode)) { 4347 /* 4348 * mac80211 does not allow scan requests in AP mode, so 4349 * try to do this in station mode. 4350 */ 4351 if (wpa_driver_nl80211_set_mode( 4352 bss, NL80211_IFTYPE_STATION)) 4353 goto nla_put_failure; 4354 4355 if (wpa_driver_nl80211_scan(bss, params)) { 4356 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4357 goto nla_put_failure; 4358 } 4359 4360 /* Restore AP mode when processing scan results */ 4361 drv->ap_scan_as_station = drv->nlmode; 4362 ret = 0; 4363 } else 4364 goto nla_put_failure; 4365#else /* HOSTAPD */ 4366 goto nla_put_failure; 4367#endif /* HOSTAPD */ 4368 } 4369 4370 /* Not all drivers generate "scan completed" wireless event, so try to 4371 * read results after a timeout. */ 4372 timeout = 10; 4373 if (drv->scan_complete_events) { 4374 /* 4375 * The driver seems to deliver events to notify when scan is 4376 * complete, so use longer timeout to avoid race conditions 4377 * with scanning and following association request. 4378 */ 4379 timeout = 30; 4380 } 4381 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4382 "seconds", ret, timeout); 4383 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4384 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4385 drv, drv->ctx); 4386 4387nla_put_failure: 4388 nlmsg_free(msg); 4389 return ret; 4390} 4391 4392 4393/** 4394 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4395 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4396 * @params: Scan parameters 4397 * @interval: Interval between scan cycles in milliseconds 4398 * Returns: 0 on success, -1 on failure or if not supported 4399 */ 4400static int wpa_driver_nl80211_sched_scan(void *priv, 4401 struct wpa_driver_scan_params *params, 4402 u32 interval) 4403{ 4404 struct i802_bss *bss = priv; 4405 struct wpa_driver_nl80211_data *drv = bss->drv; 4406 int ret = -1; 4407 struct nl_msg *msg; 4408 size_t i; 4409 4410 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4411 4412#ifdef ANDROID 4413 if (!drv->capa.sched_scan_supported) 4414 return android_pno_start(bss, params); 4415#endif /* ANDROID */ 4416 4417 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4418 bss->wdev_id_set ? &bss->wdev_id : NULL); 4419 if (!msg) 4420 goto nla_put_failure; 4421 4422 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4423 4424 if ((drv->num_filter_ssids && 4425 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4426 params->filter_rssi) { 4427 struct nlattr *match_sets; 4428 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4429 if (match_sets == NULL) 4430 goto nla_put_failure; 4431 4432 for (i = 0; i < drv->num_filter_ssids; i++) { 4433 struct nlattr *match_set_ssid; 4434 wpa_hexdump_ascii(MSG_MSGDUMP, 4435 "nl80211: Sched scan filter SSID", 4436 drv->filter_ssids[i].ssid, 4437 drv->filter_ssids[i].ssid_len); 4438 4439 match_set_ssid = nla_nest_start(msg, i + 1); 4440 if (match_set_ssid == NULL) 4441 goto nla_put_failure; 4442 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4443 drv->filter_ssids[i].ssid_len, 4444 drv->filter_ssids[i].ssid); 4445 4446 nla_nest_end(msg, match_set_ssid); 4447 } 4448 4449 if (params->filter_rssi) { 4450 struct nlattr *match_set_rssi; 4451 match_set_rssi = nla_nest_start(msg, 0); 4452 if (match_set_rssi == NULL) 4453 goto nla_put_failure; 4454 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4455 params->filter_rssi); 4456 wpa_printf(MSG_MSGDUMP, 4457 "nl80211: Sched scan RSSI filter %d dBm", 4458 params->filter_rssi); 4459 nla_nest_end(msg, match_set_rssi); 4460 } 4461 4462 nla_nest_end(msg, match_sets); 4463 } 4464 4465 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4466 4467 /* TODO: if we get an error here, we should fall back to normal scan */ 4468 4469 msg = NULL; 4470 if (ret) { 4471 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4472 "ret=%d (%s)", ret, strerror(-ret)); 4473 goto nla_put_failure; 4474 } 4475 4476 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4477 "scan interval %d msec", ret, interval); 4478 4479nla_put_failure: 4480 nlmsg_free(msg); 4481 return ret; 4482} 4483 4484 4485/** 4486 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4487 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4488 * Returns: 0 on success, -1 on failure or if not supported 4489 */ 4490static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4491{ 4492 struct i802_bss *bss = priv; 4493 struct wpa_driver_nl80211_data *drv = bss->drv; 4494 int ret = 0; 4495 struct nl_msg *msg; 4496 4497#ifdef ANDROID 4498 if (!drv->capa.sched_scan_supported) 4499 return android_pno_stop(bss); 4500#endif /* ANDROID */ 4501 4502 msg = nlmsg_alloc(); 4503 if (!msg) 4504 return -1; 4505 4506 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4507 4508 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4509 4510 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4511 msg = NULL; 4512 if (ret) { 4513 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4514 "ret=%d (%s)", ret, strerror(-ret)); 4515 goto nla_put_failure; 4516 } 4517 4518 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4519 4520nla_put_failure: 4521 nlmsg_free(msg); 4522 return ret; 4523} 4524 4525 4526static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4527{ 4528 const u8 *end, *pos; 4529 4530 if (ies == NULL) 4531 return NULL; 4532 4533 pos = ies; 4534 end = ies + ies_len; 4535 4536 while (pos + 1 < end) { 4537 if (pos + 2 + pos[1] > end) 4538 break; 4539 if (pos[0] == ie) 4540 return pos; 4541 pos += 2 + pos[1]; 4542 } 4543 4544 return NULL; 4545} 4546 4547 4548static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4549 const u8 *ie, size_t ie_len) 4550{ 4551 const u8 *ssid; 4552 size_t i; 4553 4554 if (drv->filter_ssids == NULL) 4555 return 0; 4556 4557 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4558 if (ssid == NULL) 4559 return 1; 4560 4561 for (i = 0; i < drv->num_filter_ssids; i++) { 4562 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4563 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4564 0) 4565 return 0; 4566 } 4567 4568 return 1; 4569} 4570 4571 4572static int bss_info_handler(struct nl_msg *msg, void *arg) 4573{ 4574 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4575 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4576 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4577 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4578 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4579 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4580 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4581 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4582 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4583 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4584 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4585 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4586 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4587 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4588 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4589 }; 4590 struct nl80211_bss_info_arg *_arg = arg; 4591 struct wpa_scan_results *res = _arg->res; 4592 struct wpa_scan_res **tmp; 4593 struct wpa_scan_res *r; 4594 const u8 *ie, *beacon_ie; 4595 size_t ie_len, beacon_ie_len; 4596 u8 *pos; 4597 size_t i; 4598 4599 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4600 genlmsg_attrlen(gnlh, 0), NULL); 4601 if (!tb[NL80211_ATTR_BSS]) 4602 return NL_SKIP; 4603 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4604 bss_policy)) 4605 return NL_SKIP; 4606 if (bss[NL80211_BSS_STATUS]) { 4607 enum nl80211_bss_status status; 4608 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4609 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4610 bss[NL80211_BSS_FREQUENCY]) { 4611 _arg->assoc_freq = 4612 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4613 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4614 _arg->assoc_freq); 4615 } 4616 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4617 bss[NL80211_BSS_BSSID]) { 4618 os_memcpy(_arg->assoc_bssid, 4619 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4620 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4621 MACSTR, MAC2STR(_arg->assoc_bssid)); 4622 } 4623 } 4624 if (!res) 4625 return NL_SKIP; 4626 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4627 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4628 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4629 } else { 4630 ie = NULL; 4631 ie_len = 0; 4632 } 4633 if (bss[NL80211_BSS_BEACON_IES]) { 4634 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4635 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4636 } else { 4637 beacon_ie = NULL; 4638 beacon_ie_len = 0; 4639 } 4640 4641 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4642 ie ? ie_len : beacon_ie_len)) 4643 return NL_SKIP; 4644 4645 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4646 if (r == NULL) 4647 return NL_SKIP; 4648 if (bss[NL80211_BSS_BSSID]) 4649 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4650 ETH_ALEN); 4651 if (bss[NL80211_BSS_FREQUENCY]) 4652 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4653 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4654 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4655 if (bss[NL80211_BSS_CAPABILITY]) 4656 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4657 r->flags |= WPA_SCAN_NOISE_INVALID; 4658 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4659 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4660 r->level /= 100; /* mBm to dBm */ 4661 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4662 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4663 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4664 r->flags |= WPA_SCAN_QUAL_INVALID; 4665 } else 4666 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4667 if (bss[NL80211_BSS_TSF]) 4668 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4669 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4670 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4671 r->ie_len = ie_len; 4672 pos = (u8 *) (r + 1); 4673 if (ie) { 4674 os_memcpy(pos, ie, ie_len); 4675 pos += ie_len; 4676 } 4677 r->beacon_ie_len = beacon_ie_len; 4678 if (beacon_ie) 4679 os_memcpy(pos, beacon_ie, beacon_ie_len); 4680 4681 if (bss[NL80211_BSS_STATUS]) { 4682 enum nl80211_bss_status status; 4683 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4684 switch (status) { 4685 case NL80211_BSS_STATUS_AUTHENTICATED: 4686 r->flags |= WPA_SCAN_AUTHENTICATED; 4687 break; 4688 case NL80211_BSS_STATUS_ASSOCIATED: 4689 r->flags |= WPA_SCAN_ASSOCIATED; 4690 break; 4691 default: 4692 break; 4693 } 4694 } 4695 4696 /* 4697 * cfg80211 maintains separate BSS table entries for APs if the same 4698 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4699 * not use frequency as a separate key in the BSS table, so filter out 4700 * duplicated entries. Prefer associated BSS entry in such a case in 4701 * order to get the correct frequency into the BSS table. 4702 */ 4703 for (i = 0; i < res->num; i++) { 4704 const u8 *s1, *s2; 4705 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4706 continue; 4707 4708 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4709 res->res[i]->ie_len, WLAN_EID_SSID); 4710 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4711 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4712 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4713 continue; 4714 4715 /* Same BSSID,SSID was already included in scan results */ 4716 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4717 "for " MACSTR, MAC2STR(r->bssid)); 4718 4719 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4720 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4721 os_free(res->res[i]); 4722 res->res[i] = r; 4723 } else 4724 os_free(r); 4725 return NL_SKIP; 4726 } 4727 4728 tmp = os_realloc_array(res->res, res->num + 1, 4729 sizeof(struct wpa_scan_res *)); 4730 if (tmp == NULL) { 4731 os_free(r); 4732 return NL_SKIP; 4733 } 4734 tmp[res->num++] = r; 4735 res->res = tmp; 4736 4737 return NL_SKIP; 4738} 4739 4740 4741static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4742 const u8 *addr) 4743{ 4744 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4745 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4746 "mismatch (" MACSTR ")", MAC2STR(addr)); 4747 wpa_driver_nl80211_mlme(drv, addr, 4748 NL80211_CMD_DEAUTHENTICATE, 4749 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4750 } 4751} 4752 4753 4754static void wpa_driver_nl80211_check_bss_status( 4755 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4756{ 4757 size_t i; 4758 4759 for (i = 0; i < res->num; i++) { 4760 struct wpa_scan_res *r = res->res[i]; 4761 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4762 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4763 "indicates BSS status with " MACSTR 4764 " as authenticated", 4765 MAC2STR(r->bssid)); 4766 if (is_sta_interface(drv->nlmode) && 4767 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4768 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4769 0) { 4770 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4771 " in local state (auth=" MACSTR 4772 " assoc=" MACSTR ")", 4773 MAC2STR(drv->auth_bssid), 4774 MAC2STR(drv->bssid)); 4775 clear_state_mismatch(drv, r->bssid); 4776 } 4777 } 4778 4779 if (r->flags & WPA_SCAN_ASSOCIATED) { 4780 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4781 "indicate BSS status with " MACSTR 4782 " as associated", 4783 MAC2STR(r->bssid)); 4784 if (is_sta_interface(drv->nlmode) && 4785 !drv->associated) { 4786 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4787 "(not associated) does not match " 4788 "with BSS state"); 4789 clear_state_mismatch(drv, r->bssid); 4790 } else if (is_sta_interface(drv->nlmode) && 4791 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4792 0) { 4793 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4794 "(associated with " MACSTR ") does " 4795 "not match with BSS state", 4796 MAC2STR(drv->bssid)); 4797 clear_state_mismatch(drv, r->bssid); 4798 clear_state_mismatch(drv, drv->bssid); 4799 } 4800 } 4801 } 4802} 4803 4804 4805static struct wpa_scan_results * 4806nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4807{ 4808 struct nl_msg *msg; 4809 struct wpa_scan_results *res; 4810 int ret; 4811 struct nl80211_bss_info_arg arg; 4812 4813 res = os_zalloc(sizeof(*res)); 4814 if (res == NULL) 4815 return NULL; 4816 msg = nlmsg_alloc(); 4817 if (!msg) 4818 goto nla_put_failure; 4819 4820 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4821 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4822 goto nla_put_failure; 4823 4824 arg.drv = drv; 4825 arg.res = res; 4826 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4827 msg = NULL; 4828 if (ret == 0) { 4829 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4830 "BSSes)", (unsigned long) res->num); 4831 nl80211_get_noise_for_scan_results(drv, res); 4832 return res; 4833 } 4834 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4835 "(%s)", ret, strerror(-ret)); 4836nla_put_failure: 4837 nlmsg_free(msg); 4838 wpa_scan_results_free(res); 4839 return NULL; 4840} 4841 4842 4843/** 4844 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4845 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4846 * Returns: Scan results on success, -1 on failure 4847 */ 4848static struct wpa_scan_results * 4849wpa_driver_nl80211_get_scan_results(void *priv) 4850{ 4851 struct i802_bss *bss = priv; 4852 struct wpa_driver_nl80211_data *drv = bss->drv; 4853 struct wpa_scan_results *res; 4854 4855 res = nl80211_get_scan_results(drv); 4856 if (res) 4857 wpa_driver_nl80211_check_bss_status(drv, res); 4858 return res; 4859} 4860 4861 4862static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4863{ 4864 struct wpa_scan_results *res; 4865 size_t i; 4866 4867 res = nl80211_get_scan_results(drv); 4868 if (res == NULL) { 4869 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4870 return; 4871 } 4872 4873 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4874 for (i = 0; i < res->num; i++) { 4875 struct wpa_scan_res *r = res->res[i]; 4876 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4877 (int) i, (int) res->num, MAC2STR(r->bssid), 4878 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4879 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4880 } 4881 4882 wpa_scan_results_free(res); 4883} 4884 4885 4886static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4887 enum wpa_alg alg, const u8 *addr, 4888 int key_idx, int set_tx, 4889 const u8 *seq, size_t seq_len, 4890 const u8 *key, size_t key_len) 4891{ 4892 struct wpa_driver_nl80211_data *drv = bss->drv; 4893 int ifindex; 4894 struct nl_msg *msg; 4895 int ret; 4896 4897 /* Ignore for P2P Device */ 4898 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4899 return 0; 4900 4901 ifindex = if_nametoindex(ifname); 4902 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4903 "set_tx=%d seq_len=%lu key_len=%lu", 4904 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4905 (unsigned long) seq_len, (unsigned long) key_len); 4906#ifdef CONFIG_TDLS 4907 if (key_idx == -1) 4908 key_idx = 0; 4909#endif /* CONFIG_TDLS */ 4910 4911 msg = nlmsg_alloc(); 4912 if (!msg) 4913 return -ENOMEM; 4914 4915 if (alg == WPA_ALG_NONE) { 4916 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4917 } else { 4918 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4919 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4920 switch (alg) { 4921 case WPA_ALG_WEP: 4922 if (key_len == 5) 4923 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4924 WLAN_CIPHER_SUITE_WEP40); 4925 else 4926 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4927 WLAN_CIPHER_SUITE_WEP104); 4928 break; 4929 case WPA_ALG_TKIP: 4930 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4931 WLAN_CIPHER_SUITE_TKIP); 4932 break; 4933 case WPA_ALG_CCMP: 4934 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4935 WLAN_CIPHER_SUITE_CCMP); 4936 break; 4937 case WPA_ALG_GCMP: 4938 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4939 WLAN_CIPHER_SUITE_GCMP); 4940 break; 4941 case WPA_ALG_IGTK: 4942 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4943 WLAN_CIPHER_SUITE_AES_CMAC); 4944 break; 4945 case WPA_ALG_SMS4: 4946 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4947 WLAN_CIPHER_SUITE_SMS4); 4948 break; 4949 case WPA_ALG_KRK: 4950 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4951 WLAN_CIPHER_SUITE_KRK); 4952 break; 4953 default: 4954 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4955 "algorithm %d", __func__, alg); 4956 nlmsg_free(msg); 4957 return -1; 4958 } 4959 } 4960 4961 if (seq && seq_len) 4962 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4963 4964 if (addr && !is_broadcast_ether_addr(addr)) { 4965 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4966 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4967 4968 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4969 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4970 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4971 NL80211_KEYTYPE_GROUP); 4972 } 4973 } else if (addr && is_broadcast_ether_addr(addr)) { 4974 struct nlattr *types; 4975 4976 wpa_printf(MSG_DEBUG, " broadcast key"); 4977 4978 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4979 if (!types) 4980 goto nla_put_failure; 4981 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4982 nla_nest_end(msg, types); 4983 } 4984 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4985 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4986 4987 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4988 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4989 ret = 0; 4990 if (ret) 4991 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4992 ret, strerror(-ret)); 4993 4994 /* 4995 * If we failed or don't need to set the default TX key (below), 4996 * we're done here. 4997 */ 4998 if (ret || !set_tx || alg == WPA_ALG_NONE) 4999 return ret; 5000 if (is_ap_interface(drv->nlmode) && addr && 5001 !is_broadcast_ether_addr(addr)) 5002 return ret; 5003 5004 msg = nlmsg_alloc(); 5005 if (!msg) 5006 return -ENOMEM; 5007 5008 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5009 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5010 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5011 if (alg == WPA_ALG_IGTK) 5012 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5013 else 5014 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5015 if (addr && is_broadcast_ether_addr(addr)) { 5016 struct nlattr *types; 5017 5018 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5019 if (!types) 5020 goto nla_put_failure; 5021 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5022 nla_nest_end(msg, types); 5023 } else if (addr) { 5024 struct nlattr *types; 5025 5026 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5027 if (!types) 5028 goto nla_put_failure; 5029 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5030 nla_nest_end(msg, types); 5031 } 5032 5033 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5034 if (ret == -ENOENT) 5035 ret = 0; 5036 if (ret) 5037 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5038 "err=%d %s)", ret, strerror(-ret)); 5039 return ret; 5040 5041nla_put_failure: 5042 nlmsg_free(msg); 5043 return -ENOBUFS; 5044} 5045 5046 5047static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5048 int key_idx, int defkey, 5049 const u8 *seq, size_t seq_len, 5050 const u8 *key, size_t key_len) 5051{ 5052 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5053 if (!key_attr) 5054 return -1; 5055 5056 if (defkey && alg == WPA_ALG_IGTK) 5057 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5058 else if (defkey) 5059 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5060 5061 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5062 5063 switch (alg) { 5064 case WPA_ALG_WEP: 5065 if (key_len == 5) 5066 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5067 WLAN_CIPHER_SUITE_WEP40); 5068 else 5069 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5070 WLAN_CIPHER_SUITE_WEP104); 5071 break; 5072 case WPA_ALG_TKIP: 5073 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5074 break; 5075 case WPA_ALG_CCMP: 5076 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5077 break; 5078 case WPA_ALG_GCMP: 5079 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5080 break; 5081 case WPA_ALG_IGTK: 5082 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5083 WLAN_CIPHER_SUITE_AES_CMAC); 5084 break; 5085 default: 5086 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5087 "algorithm %d", __func__, alg); 5088 return -1; 5089 } 5090 5091 if (seq && seq_len) 5092 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5093 5094 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5095 5096 nla_nest_end(msg, key_attr); 5097 5098 return 0; 5099 nla_put_failure: 5100 return -1; 5101} 5102 5103 5104static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5105 struct nl_msg *msg) 5106{ 5107 int i, privacy = 0; 5108 struct nlattr *nl_keys, *nl_key; 5109 5110 for (i = 0; i < 4; i++) { 5111 if (!params->wep_key[i]) 5112 continue; 5113 privacy = 1; 5114 break; 5115 } 5116 if (params->wps == WPS_MODE_PRIVACY) 5117 privacy = 1; 5118 if (params->pairwise_suite && 5119 params->pairwise_suite != WPA_CIPHER_NONE) 5120 privacy = 1; 5121 5122 if (!privacy) 5123 return 0; 5124 5125 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5126 5127 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5128 if (!nl_keys) 5129 goto nla_put_failure; 5130 5131 for (i = 0; i < 4; i++) { 5132 if (!params->wep_key[i]) 5133 continue; 5134 5135 nl_key = nla_nest_start(msg, i); 5136 if (!nl_key) 5137 goto nla_put_failure; 5138 5139 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5140 params->wep_key[i]); 5141 if (params->wep_key_len[i] == 5) 5142 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5143 WLAN_CIPHER_SUITE_WEP40); 5144 else 5145 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5146 WLAN_CIPHER_SUITE_WEP104); 5147 5148 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5149 5150 if (i == params->wep_tx_keyidx) 5151 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5152 5153 nla_nest_end(msg, nl_key); 5154 } 5155 nla_nest_end(msg, nl_keys); 5156 5157 return 0; 5158 5159nla_put_failure: 5160 return -ENOBUFS; 5161} 5162 5163 5164static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5165 const u8 *addr, int cmd, u16 reason_code, 5166 int local_state_change) 5167{ 5168 int ret = -1; 5169 struct nl_msg *msg; 5170 5171 msg = nlmsg_alloc(); 5172 if (!msg) 5173 return -1; 5174 5175 nl80211_cmd(drv, msg, 0, cmd); 5176 5177 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5178 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5179 if (addr) 5180 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5181 if (local_state_change) 5182 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5183 5184 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5185 msg = NULL; 5186 if (ret) { 5187 wpa_dbg(drv->ctx, MSG_DEBUG, 5188 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5189 reason_code, ret, strerror(-ret)); 5190 goto nla_put_failure; 5191 } 5192 ret = 0; 5193 5194nla_put_failure: 5195 nlmsg_free(msg); 5196 return ret; 5197} 5198 5199 5200static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5201 int reason_code) 5202{ 5203 int ret; 5204 5205 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5206 nl80211_mark_disconnected(drv); 5207 /* Disconnect command doesn't need BSSID - it uses cached value */ 5208 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5209 reason_code, 0); 5210 /* 5211 * For locally generated disconnect, supplicant already generates a 5212 * DEAUTH event, so ignore the event from NL80211. 5213 */ 5214 drv->ignore_next_local_disconnect = ret == 0; 5215 5216 return ret; 5217} 5218 5219 5220static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5221 const u8 *addr, int reason_code) 5222{ 5223 struct wpa_driver_nl80211_data *drv = bss->drv; 5224 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5225 return wpa_driver_nl80211_disconnect(drv, reason_code); 5226 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5227 __func__, MAC2STR(addr), reason_code); 5228 nl80211_mark_disconnected(drv); 5229 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5230 return nl80211_leave_ibss(drv); 5231 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5232 reason_code, 0); 5233} 5234 5235 5236static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5237 struct wpa_driver_auth_params *params) 5238{ 5239 int i; 5240 5241 drv->auth_freq = params->freq; 5242 drv->auth_alg = params->auth_alg; 5243 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5244 drv->auth_local_state_change = params->local_state_change; 5245 drv->auth_p2p = params->p2p; 5246 5247 if (params->bssid) 5248 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5249 else 5250 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5251 5252 if (params->ssid) { 5253 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5254 drv->auth_ssid_len = params->ssid_len; 5255 } else 5256 drv->auth_ssid_len = 0; 5257 5258 5259 os_free(drv->auth_ie); 5260 drv->auth_ie = NULL; 5261 drv->auth_ie_len = 0; 5262 if (params->ie) { 5263 drv->auth_ie = os_malloc(params->ie_len); 5264 if (drv->auth_ie) { 5265 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5266 drv->auth_ie_len = params->ie_len; 5267 } 5268 } 5269 5270 for (i = 0; i < 4; i++) { 5271 if (params->wep_key[i] && params->wep_key_len[i] && 5272 params->wep_key_len[i] <= 16) { 5273 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5274 params->wep_key_len[i]); 5275 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5276 } else 5277 drv->auth_wep_key_len[i] = 0; 5278 } 5279} 5280 5281 5282static int wpa_driver_nl80211_authenticate( 5283 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5284{ 5285 struct wpa_driver_nl80211_data *drv = bss->drv; 5286 int ret = -1, i; 5287 struct nl_msg *msg; 5288 enum nl80211_auth_type type; 5289 enum nl80211_iftype nlmode; 5290 int count = 0; 5291 int is_retry; 5292 5293 is_retry = drv->retry_auth; 5294 drv->retry_auth = 0; 5295 5296 nl80211_mark_disconnected(drv); 5297 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5298 if (params->bssid) 5299 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5300 else 5301 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5302 /* FIX: IBSS mode */ 5303 nlmode = params->p2p ? 5304 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5305 if (drv->nlmode != nlmode && 5306 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5307 return -1; 5308 5309retry: 5310 msg = nlmsg_alloc(); 5311 if (!msg) 5312 return -1; 5313 5314 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5315 drv->ifindex); 5316 5317 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5318 5319 for (i = 0; i < 4; i++) { 5320 if (!params->wep_key[i]) 5321 continue; 5322 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5323 NULL, i, 5324 i == params->wep_tx_keyidx, NULL, 0, 5325 params->wep_key[i], 5326 params->wep_key_len[i]); 5327 if (params->wep_tx_keyidx != i) 5328 continue; 5329 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5330 params->wep_key[i], params->wep_key_len[i])) { 5331 nlmsg_free(msg); 5332 return -1; 5333 } 5334 } 5335 5336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5337 if (params->bssid) { 5338 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5339 MAC2STR(params->bssid)); 5340 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5341 } 5342 if (params->freq) { 5343 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5344 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5345 } 5346 if (params->ssid) { 5347 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5348 params->ssid, params->ssid_len); 5349 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5350 params->ssid); 5351 } 5352 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5353 if (params->ie) 5354 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5355 if (params->sae_data) { 5356 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5357 params->sae_data_len); 5358 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5359 params->sae_data); 5360 } 5361 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5362 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5363 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5364 type = NL80211_AUTHTYPE_SHARED_KEY; 5365 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5366 type = NL80211_AUTHTYPE_NETWORK_EAP; 5367 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5368 type = NL80211_AUTHTYPE_FT; 5369 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5370 type = NL80211_AUTHTYPE_SAE; 5371 else 5372 goto nla_put_failure; 5373 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5374 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5375 if (params->local_state_change) { 5376 wpa_printf(MSG_DEBUG, " * Local state change only"); 5377 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5378 } 5379 5380 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5381 msg = NULL; 5382 if (ret) { 5383 wpa_dbg(drv->ctx, MSG_DEBUG, 5384 "nl80211: MLME command failed (auth): ret=%d (%s)", 5385 ret, strerror(-ret)); 5386 count++; 5387 if (ret == -EALREADY && count == 1 && params->bssid && 5388 !params->local_state_change) { 5389 /* 5390 * mac80211 does not currently accept new 5391 * authentication if we are already authenticated. As a 5392 * workaround, force deauthentication and try again. 5393 */ 5394 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5395 "after forced deauthentication"); 5396 wpa_driver_nl80211_deauthenticate( 5397 bss, params->bssid, 5398 WLAN_REASON_PREV_AUTH_NOT_VALID); 5399 nlmsg_free(msg); 5400 goto retry; 5401 } 5402 5403 if (ret == -ENOENT && params->freq && !is_retry) { 5404 /* 5405 * cfg80211 has likely expired the BSS entry even 5406 * though it was previously available in our internal 5407 * BSS table. To recover quickly, start a single 5408 * channel scan on the specified channel. 5409 */ 5410 struct wpa_driver_scan_params scan; 5411 int freqs[2]; 5412 5413 os_memset(&scan, 0, sizeof(scan)); 5414 scan.num_ssids = 1; 5415 if (params->ssid) { 5416 scan.ssids[0].ssid = params->ssid; 5417 scan.ssids[0].ssid_len = params->ssid_len; 5418 } 5419 freqs[0] = params->freq; 5420 freqs[1] = 0; 5421 scan.freqs = freqs; 5422 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5423 "channel scan to refresh cfg80211 BSS " 5424 "entry"); 5425 ret = wpa_driver_nl80211_scan(bss, &scan); 5426 if (ret == 0) { 5427 nl80211_copy_auth_params(drv, params); 5428 drv->scan_for_auth = 1; 5429 } 5430 } else if (is_retry) { 5431 /* 5432 * Need to indicate this with an event since the return 5433 * value from the retry is not delivered to core code. 5434 */ 5435 union wpa_event_data event; 5436 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5437 "failed"); 5438 os_memset(&event, 0, sizeof(event)); 5439 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5440 ETH_ALEN); 5441 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5442 &event); 5443 } 5444 5445 goto nla_put_failure; 5446 } 5447 ret = 0; 5448 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5449 "successfully"); 5450 5451nla_put_failure: 5452 nlmsg_free(msg); 5453 return ret; 5454} 5455 5456 5457static int wpa_driver_nl80211_authenticate_retry( 5458 struct wpa_driver_nl80211_data *drv) 5459{ 5460 struct wpa_driver_auth_params params; 5461 struct i802_bss *bss = &drv->first_bss; 5462 int i; 5463 5464 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5465 5466 os_memset(¶ms, 0, sizeof(params)); 5467 params.freq = drv->auth_freq; 5468 params.auth_alg = drv->auth_alg; 5469 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5470 params.local_state_change = drv->auth_local_state_change; 5471 params.p2p = drv->auth_p2p; 5472 5473 if (!is_zero_ether_addr(drv->auth_bssid_)) 5474 params.bssid = drv->auth_bssid_; 5475 5476 if (drv->auth_ssid_len) { 5477 params.ssid = drv->auth_ssid; 5478 params.ssid_len = drv->auth_ssid_len; 5479 } 5480 5481 params.ie = drv->auth_ie; 5482 params.ie_len = drv->auth_ie_len; 5483 5484 for (i = 0; i < 4; i++) { 5485 if (drv->auth_wep_key_len[i]) { 5486 params.wep_key[i] = drv->auth_wep_key[i]; 5487 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5488 } 5489 } 5490 5491 drv->retry_auth = 1; 5492 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5493} 5494 5495 5496struct phy_info_arg { 5497 u16 *num_modes; 5498 struct hostapd_hw_modes *modes; 5499 int last_mode, last_chan_idx; 5500}; 5501 5502static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5503 struct nlattr *ampdu_factor, 5504 struct nlattr *ampdu_density, 5505 struct nlattr *mcs_set) 5506{ 5507 if (capa) 5508 mode->ht_capab = nla_get_u16(capa); 5509 5510 if (ampdu_factor) 5511 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5512 5513 if (ampdu_density) 5514 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5515 5516 if (mcs_set && nla_len(mcs_set) >= 16) { 5517 u8 *mcs; 5518 mcs = nla_data(mcs_set); 5519 os_memcpy(mode->mcs_set, mcs, 16); 5520 } 5521} 5522 5523 5524static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5525 struct nlattr *capa, 5526 struct nlattr *mcs_set) 5527{ 5528 if (capa) 5529 mode->vht_capab = nla_get_u32(capa); 5530 5531 if (mcs_set && nla_len(mcs_set) >= 8) { 5532 u8 *mcs; 5533 mcs = nla_data(mcs_set); 5534 os_memcpy(mode->vht_mcs_set, mcs, 8); 5535 } 5536} 5537 5538 5539static void phy_info_freq(struct hostapd_hw_modes *mode, 5540 struct hostapd_channel_data *chan, 5541 struct nlattr *tb_freq[]) 5542{ 5543 u8 channel; 5544 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5545 chan->flag = 0; 5546 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5547 chan->chan = channel; 5548 5549 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5550 chan->flag |= HOSTAPD_CHAN_DISABLED; 5551 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5552 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5553 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5554 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5555 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5556 chan->flag |= HOSTAPD_CHAN_RADAR; 5557 5558 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5559 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5560 chan->max_tx_power = nla_get_u32( 5561 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5562 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5563 enum nl80211_dfs_state state = 5564 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5565 5566 switch (state) { 5567 case NL80211_DFS_USABLE: 5568 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5569 break; 5570 case NL80211_DFS_AVAILABLE: 5571 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5572 break; 5573 case NL80211_DFS_UNAVAILABLE: 5574 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5575 break; 5576 } 5577 } 5578} 5579 5580 5581static int phy_info_freqs(struct phy_info_arg *phy_info, 5582 struct hostapd_hw_modes *mode, struct nlattr *tb) 5583{ 5584 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5585 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5586 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5587 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5588 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5589 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5590 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5591 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5592 }; 5593 int new_channels = 0; 5594 struct hostapd_channel_data *channel; 5595 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5596 struct nlattr *nl_freq; 5597 int rem_freq, idx; 5598 5599 if (tb == NULL) 5600 return NL_OK; 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 new_channels++; 5608 } 5609 5610 channel = os_realloc_array(mode->channels, 5611 mode->num_channels + new_channels, 5612 sizeof(struct hostapd_channel_data)); 5613 if (!channel) 5614 return NL_SKIP; 5615 5616 mode->channels = channel; 5617 mode->num_channels += new_channels; 5618 5619 idx = phy_info->last_chan_idx; 5620 5621 nla_for_each_nested(nl_freq, tb, rem_freq) { 5622 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5623 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5624 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5625 continue; 5626 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5627 idx++; 5628 } 5629 phy_info->last_chan_idx = idx; 5630 5631 return NL_OK; 5632} 5633 5634 5635static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5636{ 5637 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5638 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5639 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5640 { .type = NLA_FLAG }, 5641 }; 5642 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5643 struct nlattr *nl_rate; 5644 int rem_rate, idx; 5645 5646 if (tb == NULL) 5647 return NL_OK; 5648 5649 nla_for_each_nested(nl_rate, tb, rem_rate) { 5650 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5651 nla_data(nl_rate), nla_len(nl_rate), 5652 rate_policy); 5653 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5654 continue; 5655 mode->num_rates++; 5656 } 5657 5658 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5659 if (!mode->rates) 5660 return NL_SKIP; 5661 5662 idx = 0; 5663 5664 nla_for_each_nested(nl_rate, tb, rem_rate) { 5665 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5666 nla_data(nl_rate), nla_len(nl_rate), 5667 rate_policy); 5668 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5669 continue; 5670 mode->rates[idx] = nla_get_u32( 5671 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5672 idx++; 5673 } 5674 5675 return NL_OK; 5676} 5677 5678 5679static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5680{ 5681 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5682 struct hostapd_hw_modes *mode; 5683 int ret; 5684 5685 if (phy_info->last_mode != nl_band->nla_type) { 5686 mode = os_realloc_array(phy_info->modes, 5687 *phy_info->num_modes + 1, 5688 sizeof(*mode)); 5689 if (!mode) 5690 return NL_SKIP; 5691 phy_info->modes = mode; 5692 5693 mode = &phy_info->modes[*(phy_info->num_modes)]; 5694 os_memset(mode, 0, sizeof(*mode)); 5695 mode->mode = NUM_HOSTAPD_MODES; 5696 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5697 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5698 5699 /* 5700 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5701 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5702 * possible streams as unsupported. This will be overridden if 5703 * driver advertises VHT support. 5704 */ 5705 mode->vht_mcs_set[0] = 0xff; 5706 mode->vht_mcs_set[1] = 0xff; 5707 mode->vht_mcs_set[4] = 0xff; 5708 mode->vht_mcs_set[5] = 0xff; 5709 5710 *(phy_info->num_modes) += 1; 5711 phy_info->last_mode = nl_band->nla_type; 5712 phy_info->last_chan_idx = 0; 5713 } else 5714 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5715 5716 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5717 nla_len(nl_band), NULL); 5718 5719 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5720 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5721 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5722 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5723 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5724 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5725 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5726 if (ret != NL_OK) 5727 return ret; 5728 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5729 if (ret != NL_OK) 5730 return ret; 5731 5732 return NL_OK; 5733} 5734 5735 5736static int phy_info_handler(struct nl_msg *msg, void *arg) 5737{ 5738 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5739 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5740 struct phy_info_arg *phy_info = arg; 5741 struct nlattr *nl_band; 5742 int rem_band; 5743 5744 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5745 genlmsg_attrlen(gnlh, 0), NULL); 5746 5747 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5748 return NL_SKIP; 5749 5750 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5751 { 5752 int res = phy_info_band(phy_info, nl_band); 5753 if (res != NL_OK) 5754 return res; 5755 } 5756 5757 return NL_SKIP; 5758} 5759 5760 5761static struct hostapd_hw_modes * 5762wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5763 u16 *num_modes) 5764{ 5765 u16 m; 5766 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5767 int i, mode11g_idx = -1; 5768 5769 /* heuristic to set up modes */ 5770 for (m = 0; m < *num_modes; m++) { 5771 if (!modes[m].num_channels) 5772 continue; 5773 if (modes[m].channels[0].freq < 4000) { 5774 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5775 for (i = 0; i < modes[m].num_rates; i++) { 5776 if (modes[m].rates[i] > 200) { 5777 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5778 break; 5779 } 5780 } 5781 } else if (modes[m].channels[0].freq > 50000) 5782 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5783 else 5784 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5785 } 5786 5787 /* If only 802.11g mode is included, use it to construct matching 5788 * 802.11b mode data. */ 5789 5790 for (m = 0; m < *num_modes; m++) { 5791 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5792 return modes; /* 802.11b already included */ 5793 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5794 mode11g_idx = m; 5795 } 5796 5797 if (mode11g_idx < 0) 5798 return modes; /* 2.4 GHz band not supported at all */ 5799 5800 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5801 if (nmodes == NULL) 5802 return modes; /* Could not add 802.11b mode */ 5803 5804 mode = &nmodes[*num_modes]; 5805 os_memset(mode, 0, sizeof(*mode)); 5806 (*num_modes)++; 5807 modes = nmodes; 5808 5809 mode->mode = HOSTAPD_MODE_IEEE80211B; 5810 5811 mode11g = &modes[mode11g_idx]; 5812 mode->num_channels = mode11g->num_channels; 5813 mode->channels = os_malloc(mode11g->num_channels * 5814 sizeof(struct hostapd_channel_data)); 5815 if (mode->channels == NULL) { 5816 (*num_modes)--; 5817 return modes; /* Could not add 802.11b mode */ 5818 } 5819 os_memcpy(mode->channels, mode11g->channels, 5820 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5821 5822 mode->num_rates = 0; 5823 mode->rates = os_malloc(4 * sizeof(int)); 5824 if (mode->rates == NULL) { 5825 os_free(mode->channels); 5826 (*num_modes)--; 5827 return modes; /* Could not add 802.11b mode */ 5828 } 5829 5830 for (i = 0; i < mode11g->num_rates; i++) { 5831 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5832 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5833 continue; 5834 mode->rates[mode->num_rates] = mode11g->rates[i]; 5835 mode->num_rates++; 5836 if (mode->num_rates == 4) 5837 break; 5838 } 5839 5840 if (mode->num_rates == 0) { 5841 os_free(mode->channels); 5842 os_free(mode->rates); 5843 (*num_modes)--; 5844 return modes; /* No 802.11b rates */ 5845 } 5846 5847 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5848 "information"); 5849 5850 return modes; 5851} 5852 5853 5854static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5855 int end) 5856{ 5857 int c; 5858 5859 for (c = 0; c < mode->num_channels; c++) { 5860 struct hostapd_channel_data *chan = &mode->channels[c]; 5861 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5862 chan->flag |= HOSTAPD_CHAN_HT40; 5863 } 5864} 5865 5866 5867static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5868 int end) 5869{ 5870 int c; 5871 5872 for (c = 0; c < mode->num_channels; c++) { 5873 struct hostapd_channel_data *chan = &mode->channels[c]; 5874 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5875 continue; 5876 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5877 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5878 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5879 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5880 } 5881} 5882 5883 5884static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5885 struct phy_info_arg *results) 5886{ 5887 u32 start, end, max_bw; 5888 u16 m; 5889 5890 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5891 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5892 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5893 return; 5894 5895 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5896 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5897 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5898 5899 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5900 start, end, max_bw); 5901 if (max_bw < 40) 5902 return; 5903 5904 for (m = 0; m < *results->num_modes; m++) { 5905 if (!(results->modes[m].ht_capab & 5906 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5907 continue; 5908 nl80211_set_ht40_mode(&results->modes[m], start, end); 5909 } 5910} 5911 5912 5913static void nl80211_reg_rule_sec(struct nlattr *tb[], 5914 struct phy_info_arg *results) 5915{ 5916 u32 start, end, max_bw; 5917 u16 m; 5918 5919 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5920 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5921 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5922 return; 5923 5924 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5925 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5926 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5927 5928 if (max_bw < 20) 5929 return; 5930 5931 for (m = 0; m < *results->num_modes; m++) { 5932 if (!(results->modes[m].ht_capab & 5933 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5934 continue; 5935 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5936 } 5937} 5938 5939 5940static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5941{ 5942 struct phy_info_arg *results = arg; 5943 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5944 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5945 struct nlattr *nl_rule; 5946 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5947 int rem_rule; 5948 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5949 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5950 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5951 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5952 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5953 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5954 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5955 }; 5956 5957 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5958 genlmsg_attrlen(gnlh, 0), NULL); 5959 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5960 !tb_msg[NL80211_ATTR_REG_RULES]) { 5961 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5962 "available"); 5963 return NL_SKIP; 5964 } 5965 5966 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5967 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5968 5969 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5970 { 5971 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5972 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5973 nl80211_reg_rule_ht40(tb_rule, results); 5974 } 5975 5976 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5977 { 5978 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5979 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5980 nl80211_reg_rule_sec(tb_rule, results); 5981 } 5982 5983 return NL_SKIP; 5984} 5985 5986 5987static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5988 struct phy_info_arg *results) 5989{ 5990 struct nl_msg *msg; 5991 5992 msg = nlmsg_alloc(); 5993 if (!msg) 5994 return -ENOMEM; 5995 5996 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 5997 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 5998} 5999 6000 6001static struct hostapd_hw_modes * 6002wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6003{ 6004 u32 feat; 6005 struct i802_bss *bss = priv; 6006 struct wpa_driver_nl80211_data *drv = bss->drv; 6007 struct nl_msg *msg; 6008 struct phy_info_arg result = { 6009 .num_modes = num_modes, 6010 .modes = NULL, 6011 .last_mode = -1, 6012 }; 6013 6014 *num_modes = 0; 6015 *flags = 0; 6016 6017 msg = nlmsg_alloc(); 6018 if (!msg) 6019 return NULL; 6020 6021 feat = get_nl80211_protocol_features(drv); 6022 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6023 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6024 else 6025 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6026 6027 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6028 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6029 6030 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6031 nl80211_set_ht40_flags(drv, &result); 6032 return wpa_driver_nl80211_postprocess_modes(result.modes, 6033 num_modes); 6034 } 6035 msg = NULL; 6036 nla_put_failure: 6037 nlmsg_free(msg); 6038 return NULL; 6039} 6040 6041 6042static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6043 const void *data, size_t len, 6044 int encrypt, int noack) 6045{ 6046 __u8 rtap_hdr[] = { 6047 0x00, 0x00, /* radiotap version */ 6048 0x0e, 0x00, /* radiotap length */ 6049 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6050 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6051 0x00, /* padding */ 6052 0x00, 0x00, /* RX and TX flags to indicate that */ 6053 0x00, 0x00, /* this is the injected frame directly */ 6054 }; 6055 struct iovec iov[2] = { 6056 { 6057 .iov_base = &rtap_hdr, 6058 .iov_len = sizeof(rtap_hdr), 6059 }, 6060 { 6061 .iov_base = (void *) data, 6062 .iov_len = len, 6063 } 6064 }; 6065 struct msghdr msg = { 6066 .msg_name = NULL, 6067 .msg_namelen = 0, 6068 .msg_iov = iov, 6069 .msg_iovlen = 2, 6070 .msg_control = NULL, 6071 .msg_controllen = 0, 6072 .msg_flags = 0, 6073 }; 6074 int res; 6075 u16 txflags = 0; 6076 6077 if (encrypt) 6078 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6079 6080 if (drv->monitor_sock < 0) { 6081 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6082 "for %s", __func__); 6083 return -1; 6084 } 6085 6086 if (noack) 6087 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6088 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6089 6090 res = sendmsg(drv->monitor_sock, &msg, 0); 6091 if (res < 0) { 6092 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6093 return -1; 6094 } 6095 return 0; 6096} 6097 6098 6099static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6100 const void *data, size_t len, 6101 int encrypt, int noack, 6102 unsigned int freq, int no_cck, 6103 int offchanok, unsigned int wait_time) 6104{ 6105 struct wpa_driver_nl80211_data *drv = bss->drv; 6106 u64 cookie; 6107 6108 if (freq == 0) 6109 freq = bss->freq; 6110 6111 if (drv->use_monitor) 6112 return wpa_driver_nl80211_send_mntr(drv, data, len, 6113 encrypt, noack); 6114 6115 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6116 &cookie, no_cck, noack, offchanok); 6117} 6118 6119 6120static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6121 size_t data_len, int noack, 6122 unsigned int freq, int no_cck, 6123 int offchanok, 6124 unsigned int wait_time) 6125{ 6126 struct wpa_driver_nl80211_data *drv = bss->drv; 6127 struct ieee80211_mgmt *mgmt; 6128 int encrypt = 1; 6129 u16 fc; 6130 6131 mgmt = (struct ieee80211_mgmt *) data; 6132 fc = le_to_host16(mgmt->frame_control); 6133 6134 if ((is_sta_interface(drv->nlmode) || 6135 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6136 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6137 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6138 /* 6139 * The use of last_mgmt_freq is a bit of a hack, 6140 * but it works due to the single-threaded nature 6141 * of wpa_supplicant. 6142 */ 6143 if (freq == 0) 6144 freq = drv->last_mgmt_freq; 6145 return nl80211_send_frame_cmd(bss, freq, 0, 6146 data, data_len, NULL, 1, noack, 6147 1); 6148 } 6149 6150 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6151 if (freq == 0) 6152 freq = bss->freq; 6153 return nl80211_send_frame_cmd(bss, freq, 6154 (int) freq == bss->freq ? 0 : 6155 wait_time, 6156 data, data_len, 6157 &drv->send_action_cookie, 6158 no_cck, noack, offchanok); 6159 } 6160 6161 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6162 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6163 /* 6164 * Only one of the authentication frame types is encrypted. 6165 * In order for static WEP encryption to work properly (i.e., 6166 * to not encrypt the frame), we need to tell mac80211 about 6167 * the frames that must not be encrypted. 6168 */ 6169 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6170 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6171 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6172 encrypt = 0; 6173 } 6174 6175 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6176 noack, freq, no_cck, offchanok, 6177 wait_time); 6178} 6179 6180 6181static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6182 int slot, int ht_opmode, int ap_isolate, 6183 int *basic_rates) 6184{ 6185 struct wpa_driver_nl80211_data *drv = bss->drv; 6186 struct nl_msg *msg; 6187 6188 msg = nlmsg_alloc(); 6189 if (!msg) 6190 return -ENOMEM; 6191 6192 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6193 6194 if (cts >= 0) 6195 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6196 if (preamble >= 0) 6197 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6198 if (slot >= 0) 6199 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6200 if (ht_opmode >= 0) 6201 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6202 if (ap_isolate >= 0) 6203 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6204 6205 if (basic_rates) { 6206 u8 rates[NL80211_MAX_SUPP_RATES]; 6207 u8 rates_len = 0; 6208 int i; 6209 6210 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6211 i++) 6212 rates[rates_len++] = basic_rates[i] / 5; 6213 6214 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6215 } 6216 6217 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6218 6219 return send_and_recv_msgs(drv, msg, NULL, NULL); 6220 nla_put_failure: 6221 nlmsg_free(msg); 6222 return -ENOBUFS; 6223} 6224 6225 6226static int wpa_driver_nl80211_set_acl(void *priv, 6227 struct hostapd_acl_params *params) 6228{ 6229 struct i802_bss *bss = priv; 6230 struct wpa_driver_nl80211_data *drv = bss->drv; 6231 struct nl_msg *msg; 6232 struct nlattr *acl; 6233 unsigned int i; 6234 int ret = 0; 6235 6236 if (!(drv->capa.max_acl_mac_addrs)) 6237 return -ENOTSUP; 6238 6239 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6240 return -ENOTSUP; 6241 6242 msg = nlmsg_alloc(); 6243 if (!msg) 6244 return -ENOMEM; 6245 6246 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6247 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6248 6249 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6250 6251 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6252 6253 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6254 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6255 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6256 6257 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6258 if (acl == NULL) 6259 goto nla_put_failure; 6260 6261 for (i = 0; i < params->num_mac_acl; i++) 6262 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6263 6264 nla_nest_end(msg, acl); 6265 6266 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6267 msg = NULL; 6268 if (ret) { 6269 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6270 ret, strerror(-ret)); 6271 } 6272 6273nla_put_failure: 6274 nlmsg_free(msg); 6275 6276 return ret; 6277} 6278 6279 6280static int wpa_driver_nl80211_set_ap(void *priv, 6281 struct wpa_driver_ap_params *params) 6282{ 6283 struct i802_bss *bss = priv; 6284 struct wpa_driver_nl80211_data *drv = bss->drv; 6285 struct nl_msg *msg; 6286 u8 cmd = NL80211_CMD_NEW_BEACON; 6287 int ret; 6288 int beacon_set; 6289 int ifindex = if_nametoindex(bss->ifname); 6290 int num_suites; 6291 u32 suites[10]; 6292 u32 ver; 6293 6294 beacon_set = bss->beacon_set; 6295 6296 msg = nlmsg_alloc(); 6297 if (!msg) 6298 return -ENOMEM; 6299 6300 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6301 beacon_set); 6302 if (beacon_set) 6303 cmd = NL80211_CMD_SET_BEACON; 6304 6305 nl80211_cmd(drv, msg, 0, cmd); 6306 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6307 params->head, params->head_len); 6308 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6309 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6310 params->tail, params->tail_len); 6311 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6312 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6313 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6314 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6315 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6316 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6317 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6318 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6319 params->ssid, params->ssid_len); 6320 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6321 params->ssid); 6322 if (params->proberesp && params->proberesp_len) { 6323 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6324 params->proberesp, params->proberesp_len); 6325 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6326 params->proberesp); 6327 } 6328 switch (params->hide_ssid) { 6329 case NO_SSID_HIDING: 6330 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6331 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6332 NL80211_HIDDEN_SSID_NOT_IN_USE); 6333 break; 6334 case HIDDEN_SSID_ZERO_LEN: 6335 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6336 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6337 NL80211_HIDDEN_SSID_ZERO_LEN); 6338 break; 6339 case HIDDEN_SSID_ZERO_CONTENTS: 6340 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6341 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6342 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6343 break; 6344 } 6345 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6346 if (params->privacy) 6347 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6348 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6349 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6350 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6351 /* Leave out the attribute */ 6352 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6353 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6354 NL80211_AUTHTYPE_SHARED_KEY); 6355 else 6356 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6357 NL80211_AUTHTYPE_OPEN_SYSTEM); 6358 6359 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6360 ver = 0; 6361 if (params->wpa_version & WPA_PROTO_WPA) 6362 ver |= NL80211_WPA_VERSION_1; 6363 if (params->wpa_version & WPA_PROTO_RSN) 6364 ver |= NL80211_WPA_VERSION_2; 6365 if (ver) 6366 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6367 6368 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6369 params->key_mgmt_suites); 6370 num_suites = 0; 6371 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6372 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6373 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6374 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6375 if (num_suites) { 6376 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6377 num_suites * sizeof(u32), suites); 6378 } 6379 6380 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6381 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6382 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6383 6384 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6385 params->pairwise_ciphers); 6386 num_suites = 0; 6387 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6388 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6389 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6390 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6391 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6392 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6393 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6394 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6395 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6396 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6397 if (num_suites) { 6398 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6399 num_suites * sizeof(u32), suites); 6400 } 6401 6402 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6403 params->group_cipher); 6404 switch (params->group_cipher) { 6405 case WPA_CIPHER_CCMP: 6406 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6407 WLAN_CIPHER_SUITE_CCMP); 6408 break; 6409 case WPA_CIPHER_GCMP: 6410 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6411 WLAN_CIPHER_SUITE_GCMP); 6412 break; 6413 case WPA_CIPHER_TKIP: 6414 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6415 WLAN_CIPHER_SUITE_TKIP); 6416 break; 6417 case WPA_CIPHER_WEP104: 6418 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6419 WLAN_CIPHER_SUITE_WEP104); 6420 break; 6421 case WPA_CIPHER_WEP40: 6422 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6423 WLAN_CIPHER_SUITE_WEP40); 6424 break; 6425 } 6426 6427 if (params->beacon_ies) { 6428 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6429 params->beacon_ies); 6430 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6431 wpabuf_head(params->beacon_ies)); 6432 } 6433 if (params->proberesp_ies) { 6434 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6435 params->proberesp_ies); 6436 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6437 wpabuf_len(params->proberesp_ies), 6438 wpabuf_head(params->proberesp_ies)); 6439 } 6440 if (params->assocresp_ies) { 6441 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6442 params->assocresp_ies); 6443 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6444 wpabuf_len(params->assocresp_ies), 6445 wpabuf_head(params->assocresp_ies)); 6446 } 6447 6448 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6449 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6450 params->ap_max_inactivity); 6451 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6452 params->ap_max_inactivity); 6453 } 6454 6455 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6456 if (ret) { 6457 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6458 ret, strerror(-ret)); 6459 } else { 6460 bss->beacon_set = 1; 6461 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6462 params->short_slot_time, params->ht_opmode, 6463 params->isolate, params->basic_rates); 6464 } 6465 return ret; 6466 nla_put_failure: 6467 nlmsg_free(msg); 6468 return -ENOBUFS; 6469} 6470 6471 6472static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6473 struct hostapd_freq_params *freq) 6474{ 6475 struct wpa_driver_nl80211_data *drv = bss->drv; 6476 struct nl_msg *msg; 6477 int ret; 6478 6479 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6480 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6481 freq->freq, freq->ht_enabled, freq->vht_enabled, 6482 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6483 msg = nlmsg_alloc(); 6484 if (!msg) 6485 return -1; 6486 6487 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6488 6489 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6490 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6491 if (freq->vht_enabled) { 6492 switch (freq->bandwidth) { 6493 case 20: 6494 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6495 NL80211_CHAN_WIDTH_20); 6496 break; 6497 case 40: 6498 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6499 NL80211_CHAN_WIDTH_40); 6500 break; 6501 case 80: 6502 if (freq->center_freq2) 6503 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6504 NL80211_CHAN_WIDTH_80P80); 6505 else 6506 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6507 NL80211_CHAN_WIDTH_80); 6508 break; 6509 case 160: 6510 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6511 NL80211_CHAN_WIDTH_160); 6512 break; 6513 default: 6514 return -1; 6515 } 6516 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6517 if (freq->center_freq2) 6518 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6519 freq->center_freq2); 6520 } else if (freq->ht_enabled) { 6521 switch (freq->sec_channel_offset) { 6522 case -1: 6523 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6524 NL80211_CHAN_HT40MINUS); 6525 break; 6526 case 1: 6527 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6528 NL80211_CHAN_HT40PLUS); 6529 break; 6530 default: 6531 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6532 NL80211_CHAN_HT20); 6533 break; 6534 } 6535 } 6536 6537 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6538 msg = NULL; 6539 if (ret == 0) { 6540 bss->freq = freq->freq; 6541 return 0; 6542 } 6543 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6544 "%d (%s)", freq->freq, ret, strerror(-ret)); 6545nla_put_failure: 6546 nlmsg_free(msg); 6547 return -1; 6548} 6549 6550 6551static u32 sta_flags_nl80211(int flags) 6552{ 6553 u32 f = 0; 6554 6555 if (flags & WPA_STA_AUTHORIZED) 6556 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6557 if (flags & WPA_STA_WMM) 6558 f |= BIT(NL80211_STA_FLAG_WME); 6559 if (flags & WPA_STA_SHORT_PREAMBLE) 6560 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6561 if (flags & WPA_STA_MFP) 6562 f |= BIT(NL80211_STA_FLAG_MFP); 6563 if (flags & WPA_STA_TDLS_PEER) 6564 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6565 6566 return f; 6567} 6568 6569 6570static int wpa_driver_nl80211_sta_add(void *priv, 6571 struct hostapd_sta_add_params *params) 6572{ 6573 struct i802_bss *bss = priv; 6574 struct wpa_driver_nl80211_data *drv = bss->drv; 6575 struct nl_msg *msg; 6576 struct nl80211_sta_flag_update upd; 6577 int ret = -ENOBUFS; 6578 6579 if ((params->flags & WPA_STA_TDLS_PEER) && 6580 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6581 return -EOPNOTSUPP; 6582 6583 msg = nlmsg_alloc(); 6584 if (!msg) 6585 return -ENOMEM; 6586 6587 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6588 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6589 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6590 NL80211_CMD_NEW_STATION); 6591 6592 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6593 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6594 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6595 params->supp_rates); 6596 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6597 params->supp_rates_len); 6598 if (!params->set) { 6599 if (params->aid) { 6600 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6601 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6602 } else { 6603 /* 6604 * cfg80211 validates that AID is non-zero, so we have 6605 * to make this a non-zero value for the TDLS case where 6606 * a dummy STA entry is used for now. 6607 */ 6608 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6609 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6610 } 6611 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6612 params->listen_interval); 6613 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6614 params->listen_interval); 6615 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6616 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6617 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6618 } 6619 if (params->ht_capabilities) { 6620 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6621 (u8 *) params->ht_capabilities, 6622 sizeof(*params->ht_capabilities)); 6623 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6624 sizeof(*params->ht_capabilities), 6625 params->ht_capabilities); 6626 } 6627 6628 if (params->vht_capabilities) { 6629 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6630 (u8 *) params->vht_capabilities, 6631 sizeof(*params->vht_capabilities)); 6632 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6633 sizeof(*params->vht_capabilities), 6634 params->vht_capabilities); 6635 } 6636 6637 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6638 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6639 6640 if (params->ext_capab) { 6641 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6642 params->ext_capab, params->ext_capab_len); 6643 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6644 params->ext_capab_len, params->ext_capab); 6645 } 6646 6647 os_memset(&upd, 0, sizeof(upd)); 6648 upd.mask = sta_flags_nl80211(params->flags); 6649 upd.set = upd.mask; 6650 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6651 upd.set, upd.mask); 6652 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6653 6654 if (params->flags & WPA_STA_WMM) { 6655 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6656 6657 if (!wme) 6658 goto nla_put_failure; 6659 6660 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6661 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6662 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6663 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6664 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6665 WMM_QOSINFO_STA_SP_MASK); 6666 nla_nest_end(msg, wme); 6667 } 6668 6669 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6670 msg = NULL; 6671 if (ret) 6672 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6673 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6674 strerror(-ret)); 6675 if (ret == -EEXIST) 6676 ret = 0; 6677 nla_put_failure: 6678 nlmsg_free(msg); 6679 return ret; 6680} 6681 6682 6683static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6684{ 6685 struct wpa_driver_nl80211_data *drv = bss->drv; 6686 struct nl_msg *msg; 6687 int ret; 6688 6689 msg = nlmsg_alloc(); 6690 if (!msg) 6691 return -ENOMEM; 6692 6693 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6694 6695 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6696 if_nametoindex(bss->ifname)); 6697 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6698 6699 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6700 if (ret == -ENOENT) 6701 return 0; 6702 return ret; 6703 nla_put_failure: 6704 nlmsg_free(msg); 6705 return -ENOBUFS; 6706} 6707 6708 6709static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6710 int ifidx) 6711{ 6712 struct nl_msg *msg; 6713 6714 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6715 6716 /* stop listening for EAPOL on this interface */ 6717 del_ifidx(drv, ifidx); 6718 6719 msg = nlmsg_alloc(); 6720 if (!msg) 6721 goto nla_put_failure; 6722 6723 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6724 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6725 6726 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6727 return; 6728 msg = NULL; 6729 nla_put_failure: 6730 nlmsg_free(msg); 6731 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6732} 6733 6734 6735static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6736{ 6737 switch (mode) { 6738 case NL80211_IFTYPE_ADHOC: 6739 return "ADHOC"; 6740 case NL80211_IFTYPE_STATION: 6741 return "STATION"; 6742 case NL80211_IFTYPE_AP: 6743 return "AP"; 6744 case NL80211_IFTYPE_AP_VLAN: 6745 return "AP_VLAN"; 6746 case NL80211_IFTYPE_WDS: 6747 return "WDS"; 6748 case NL80211_IFTYPE_MONITOR: 6749 return "MONITOR"; 6750 case NL80211_IFTYPE_MESH_POINT: 6751 return "MESH_POINT"; 6752 case NL80211_IFTYPE_P2P_CLIENT: 6753 return "P2P_CLIENT"; 6754 case NL80211_IFTYPE_P2P_GO: 6755 return "P2P_GO"; 6756 case NL80211_IFTYPE_P2P_DEVICE: 6757 return "P2P_DEVICE"; 6758 default: 6759 return "unknown"; 6760 } 6761} 6762 6763 6764static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6765 const char *ifname, 6766 enum nl80211_iftype iftype, 6767 const u8 *addr, int wds, 6768 int (*handler)(struct nl_msg *, void *), 6769 void *arg) 6770{ 6771 struct nl_msg *msg; 6772 int ifidx; 6773 int ret = -ENOBUFS; 6774 6775 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6776 iftype, nl80211_iftype_str(iftype)); 6777 6778 msg = nlmsg_alloc(); 6779 if (!msg) 6780 return -1; 6781 6782 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6783 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6784 goto nla_put_failure; 6785 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6786 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6787 6788 if (iftype == NL80211_IFTYPE_MONITOR) { 6789 struct nlattr *flags; 6790 6791 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6792 if (!flags) 6793 goto nla_put_failure; 6794 6795 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6796 6797 nla_nest_end(msg, flags); 6798 } else if (wds) { 6799 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6800 } 6801 6802 ret = send_and_recv_msgs(drv, msg, handler, arg); 6803 msg = NULL; 6804 if (ret) { 6805 nla_put_failure: 6806 nlmsg_free(msg); 6807 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6808 ifname, ret, strerror(-ret)); 6809 return ret; 6810 } 6811 6812 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6813 return 0; 6814 6815 ifidx = if_nametoindex(ifname); 6816 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6817 ifname, ifidx); 6818 6819 if (ifidx <= 0) 6820 return -1; 6821 6822 /* start listening for EAPOL on this interface */ 6823 add_ifidx(drv, ifidx); 6824 6825 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6826 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6827 nl80211_remove_iface(drv, ifidx); 6828 return -1; 6829 } 6830 6831 return ifidx; 6832} 6833 6834 6835static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6836 const char *ifname, enum nl80211_iftype iftype, 6837 const u8 *addr, int wds, 6838 int (*handler)(struct nl_msg *, void *), 6839 void *arg) 6840{ 6841 int ret; 6842 6843 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6844 arg); 6845 6846 /* if error occurred and interface exists already */ 6847 if (ret == -ENFILE && if_nametoindex(ifname)) { 6848 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6849 6850 /* Try to remove the interface that was already there. */ 6851 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6852 6853 /* Try to create the interface again */ 6854 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6855 wds, handler, arg); 6856 } 6857 6858 if (ret >= 0 && is_p2p_net_interface(iftype)) 6859 nl80211_disable_11b_rates(drv, ret, 1); 6860 6861 return ret; 6862} 6863 6864 6865static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6866{ 6867 struct ieee80211_hdr *hdr; 6868 u16 fc; 6869 union wpa_event_data event; 6870 6871 hdr = (struct ieee80211_hdr *) buf; 6872 fc = le_to_host16(hdr->frame_control); 6873 6874 os_memset(&event, 0, sizeof(event)); 6875 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6876 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6877 event.tx_status.dst = hdr->addr1; 6878 event.tx_status.data = buf; 6879 event.tx_status.data_len = len; 6880 event.tx_status.ack = ok; 6881 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6882} 6883 6884 6885static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6886 u8 *buf, size_t len) 6887{ 6888 struct ieee80211_hdr *hdr = (void *)buf; 6889 u16 fc; 6890 union wpa_event_data event; 6891 6892 if (len < sizeof(*hdr)) 6893 return; 6894 6895 fc = le_to_host16(hdr->frame_control); 6896 6897 os_memset(&event, 0, sizeof(event)); 6898 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6899 event.rx_from_unknown.addr = hdr->addr2; 6900 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6901 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6902 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6903} 6904 6905 6906static void handle_frame(struct wpa_driver_nl80211_data *drv, 6907 u8 *buf, size_t len, int datarate, int ssi_signal) 6908{ 6909 struct ieee80211_hdr *hdr; 6910 u16 fc; 6911 union wpa_event_data event; 6912 6913 hdr = (struct ieee80211_hdr *) buf; 6914 fc = le_to_host16(hdr->frame_control); 6915 6916 switch (WLAN_FC_GET_TYPE(fc)) { 6917 case WLAN_FC_TYPE_MGMT: 6918 os_memset(&event, 0, sizeof(event)); 6919 event.rx_mgmt.frame = buf; 6920 event.rx_mgmt.frame_len = len; 6921 event.rx_mgmt.datarate = datarate; 6922 event.rx_mgmt.ssi_signal = ssi_signal; 6923 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6924 break; 6925 case WLAN_FC_TYPE_CTRL: 6926 /* can only get here with PS-Poll frames */ 6927 wpa_printf(MSG_DEBUG, "CTRL"); 6928 from_unknown_sta(drv, buf, len); 6929 break; 6930 case WLAN_FC_TYPE_DATA: 6931 from_unknown_sta(drv, buf, len); 6932 break; 6933 } 6934} 6935 6936 6937static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6938{ 6939 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6940 int len; 6941 unsigned char buf[3000]; 6942 struct ieee80211_radiotap_iterator iter; 6943 int ret; 6944 int datarate = 0, ssi_signal = 0; 6945 int injected = 0, failed = 0, rxflags = 0; 6946 6947 len = recv(sock, buf, sizeof(buf), 0); 6948 if (len < 0) { 6949 perror("recv"); 6950 return; 6951 } 6952 6953 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6954 printf("received invalid radiotap frame\n"); 6955 return; 6956 } 6957 6958 while (1) { 6959 ret = ieee80211_radiotap_iterator_next(&iter); 6960 if (ret == -ENOENT) 6961 break; 6962 if (ret) { 6963 printf("received invalid radiotap frame (%d)\n", ret); 6964 return; 6965 } 6966 switch (iter.this_arg_index) { 6967 case IEEE80211_RADIOTAP_FLAGS: 6968 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6969 len -= 4; 6970 break; 6971 case IEEE80211_RADIOTAP_RX_FLAGS: 6972 rxflags = 1; 6973 break; 6974 case IEEE80211_RADIOTAP_TX_FLAGS: 6975 injected = 1; 6976 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6977 IEEE80211_RADIOTAP_F_TX_FAIL; 6978 break; 6979 case IEEE80211_RADIOTAP_DATA_RETRIES: 6980 break; 6981 case IEEE80211_RADIOTAP_CHANNEL: 6982 /* TODO: convert from freq/flags to channel number */ 6983 break; 6984 case IEEE80211_RADIOTAP_RATE: 6985 datarate = *iter.this_arg * 5; 6986 break; 6987 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6988 ssi_signal = (s8) *iter.this_arg; 6989 break; 6990 } 6991 } 6992 6993 if (rxflags && injected) 6994 return; 6995 6996 if (!injected) 6997 handle_frame(drv, buf + iter.max_length, 6998 len - iter.max_length, datarate, ssi_signal); 6999 else 7000 handle_tx_callback(drv->ctx, buf + iter.max_length, 7001 len - iter.max_length, !failed); 7002} 7003 7004 7005/* 7006 * we post-process the filter code later and rewrite 7007 * this to the offset to the last instruction 7008 */ 7009#define PASS 0xFF 7010#define FAIL 0xFE 7011 7012static struct sock_filter msock_filter_insns[] = { 7013 /* 7014 * do a little-endian load of the radiotap length field 7015 */ 7016 /* load lower byte into A */ 7017 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7018 /* put it into X (== index register) */ 7019 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7020 /* load upper byte into A */ 7021 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7022 /* left-shift it by 8 */ 7023 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7024 /* or with X */ 7025 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7026 /* put result into X */ 7027 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7028 7029 /* 7030 * Allow management frames through, this also gives us those 7031 * management frames that we sent ourselves with status 7032 */ 7033 /* load the lower byte of the IEEE 802.11 frame control field */ 7034 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7035 /* mask off frame type and version */ 7036 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7037 /* accept frame if it's both 0, fall through otherwise */ 7038 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7039 7040 /* 7041 * TODO: add a bit to radiotap RX flags that indicates 7042 * that the sending station is not associated, then 7043 * add a filter here that filters on our DA and that flag 7044 * to allow us to deauth frames to that bad station. 7045 * 7046 * For now allow all To DS data frames through. 7047 */ 7048 /* load the IEEE 802.11 frame control field */ 7049 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7050 /* mask off frame type, version and DS status */ 7051 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7052 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7053 */ 7054 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7055 7056#if 0 7057 /* 7058 * drop non-data frames 7059 */ 7060 /* load the lower byte of the frame control field */ 7061 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7062 /* mask off QoS bit */ 7063 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7064 /* drop non-data frames */ 7065 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7066#endif 7067 /* load the upper byte of the frame control field */ 7068 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7069 /* mask off toDS/fromDS */ 7070 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7071 /* accept WDS frames */ 7072 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7073 7074 /* 7075 * add header length to index 7076 */ 7077 /* load the lower byte of the frame control field */ 7078 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7079 /* mask off QoS bit */ 7080 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7081 /* right shift it by 6 to give 0 or 2 */ 7082 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7083 /* add data frame header length */ 7084 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7085 /* add index, was start of 802.11 header */ 7086 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7087 /* move to index, now start of LL header */ 7088 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7089 7090 /* 7091 * Accept empty data frames, we use those for 7092 * polling activity. 7093 */ 7094 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7095 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7096 7097 /* 7098 * Accept EAPOL frames 7099 */ 7100 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7101 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7102 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7103 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7104 7105 /* keep these last two statements or change the code below */ 7106 /* return 0 == "DROP" */ 7107 BPF_STMT(BPF_RET | BPF_K, 0), 7108 /* return ~0 == "keep all" */ 7109 BPF_STMT(BPF_RET | BPF_K, ~0), 7110}; 7111 7112static struct sock_fprog msock_filter = { 7113 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7114 .filter = msock_filter_insns, 7115}; 7116 7117 7118static int add_monitor_filter(int s) 7119{ 7120 int idx; 7121 7122 /* rewrite all PASS/FAIL jump offsets */ 7123 for (idx = 0; idx < msock_filter.len; idx++) { 7124 struct sock_filter *insn = &msock_filter_insns[idx]; 7125 7126 if (BPF_CLASS(insn->code) == BPF_JMP) { 7127 if (insn->code == (BPF_JMP|BPF_JA)) { 7128 if (insn->k == PASS) 7129 insn->k = msock_filter.len - idx - 2; 7130 else if (insn->k == FAIL) 7131 insn->k = msock_filter.len - idx - 3; 7132 } 7133 7134 if (insn->jt == PASS) 7135 insn->jt = msock_filter.len - idx - 2; 7136 else if (insn->jt == FAIL) 7137 insn->jt = msock_filter.len - idx - 3; 7138 7139 if (insn->jf == PASS) 7140 insn->jf = msock_filter.len - idx - 2; 7141 else if (insn->jf == FAIL) 7142 insn->jf = msock_filter.len - idx - 3; 7143 } 7144 } 7145 7146 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7147 &msock_filter, sizeof(msock_filter))) { 7148 perror("SO_ATTACH_FILTER"); 7149 return -1; 7150 } 7151 7152 return 0; 7153} 7154 7155 7156static void nl80211_remove_monitor_interface( 7157 struct wpa_driver_nl80211_data *drv) 7158{ 7159 drv->monitor_refcount--; 7160 if (drv->monitor_refcount > 0) 7161 return; 7162 7163 if (drv->monitor_ifidx >= 0) { 7164 nl80211_remove_iface(drv, drv->monitor_ifidx); 7165 drv->monitor_ifidx = -1; 7166 } 7167 if (drv->monitor_sock >= 0) { 7168 eloop_unregister_read_sock(drv->monitor_sock); 7169 close(drv->monitor_sock); 7170 drv->monitor_sock = -1; 7171 } 7172} 7173 7174 7175static int 7176nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7177{ 7178 char buf[IFNAMSIZ]; 7179 struct sockaddr_ll ll; 7180 int optval; 7181 socklen_t optlen; 7182 7183 if (drv->monitor_ifidx >= 0) { 7184 drv->monitor_refcount++; 7185 return 0; 7186 } 7187 7188 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7189 /* 7190 * P2P interface name is of the format p2p-%s-%d. For monitor 7191 * interface name corresponding to P2P GO, replace "p2p-" with 7192 * "mon-" to retain the same interface name length and to 7193 * indicate that it is a monitor interface. 7194 */ 7195 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7196 } else { 7197 /* Non-P2P interface with AP functionality. */ 7198 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7199 } 7200 7201 buf[IFNAMSIZ - 1] = '\0'; 7202 7203 drv->monitor_ifidx = 7204 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7205 0, NULL, NULL); 7206 7207 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7208 /* 7209 * This is backward compatibility for a few versions of 7210 * the kernel only that didn't advertise the right 7211 * attributes for the only driver that then supported 7212 * AP mode w/o monitor -- ath6kl. 7213 */ 7214 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7215 "monitor interface type - try to run without it"); 7216 drv->device_ap_sme = 1; 7217 } 7218 7219 if (drv->monitor_ifidx < 0) 7220 return -1; 7221 7222 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7223 goto error; 7224 7225 memset(&ll, 0, sizeof(ll)); 7226 ll.sll_family = AF_PACKET; 7227 ll.sll_ifindex = drv->monitor_ifidx; 7228 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7229 if (drv->monitor_sock < 0) { 7230 perror("socket[PF_PACKET,SOCK_RAW]"); 7231 goto error; 7232 } 7233 7234 if (add_monitor_filter(drv->monitor_sock)) { 7235 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7236 "interface; do filtering in user space"); 7237 /* This works, but will cost in performance. */ 7238 } 7239 7240 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7241 perror("monitor socket bind"); 7242 goto error; 7243 } 7244 7245 optlen = sizeof(optval); 7246 optval = 20; 7247 if (setsockopt 7248 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7249 perror("Failed to set socket priority"); 7250 goto error; 7251 } 7252 7253 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7254 drv, NULL)) { 7255 printf("Could not register monitor read socket\n"); 7256 goto error; 7257 } 7258 7259 return 0; 7260 error: 7261 nl80211_remove_monitor_interface(drv); 7262 return -1; 7263} 7264 7265 7266static int nl80211_setup_ap(struct i802_bss *bss) 7267{ 7268 struct wpa_driver_nl80211_data *drv = bss->drv; 7269 7270 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7271 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7272 7273 /* 7274 * Disable Probe Request reporting unless we need it in this way for 7275 * devices that include the AP SME, in the other case (unless using 7276 * monitor iface) we'll get it through the nl_mgmt socket instead. 7277 */ 7278 if (!drv->device_ap_sme) 7279 wpa_driver_nl80211_probe_req_report(bss, 0); 7280 7281 if (!drv->device_ap_sme && !drv->use_monitor) 7282 if (nl80211_mgmt_subscribe_ap(bss)) 7283 return -1; 7284 7285 if (drv->device_ap_sme && !drv->use_monitor) 7286 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7287 return -1; 7288 7289 if (!drv->device_ap_sme && drv->use_monitor && 7290 nl80211_create_monitor_interface(drv) && 7291 !drv->device_ap_sme) 7292 return -1; 7293 7294#ifdef ANDROID_P2P 7295 if (drv->device_ap_sme && drv->use_monitor) 7296 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7297 return -1; 7298 7299 if (drv->use_monitor && 7300 nl80211_create_monitor_interface(drv)) 7301 return -1; 7302#endif 7303 7304 if (drv->device_ap_sme && 7305 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7306 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7307 "Probe Request frame reporting in AP mode"); 7308 /* Try to survive without this */ 7309 } 7310 7311 return 0; 7312} 7313 7314 7315static void nl80211_teardown_ap(struct i802_bss *bss) 7316{ 7317 struct wpa_driver_nl80211_data *drv = bss->drv; 7318 7319 if (drv->device_ap_sme) { 7320 wpa_driver_nl80211_probe_req_report(bss, 0); 7321 if (!drv->use_monitor) 7322 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7323 } else if (drv->use_monitor) 7324 nl80211_remove_monitor_interface(drv); 7325 else 7326 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7327 7328 bss->beacon_set = 0; 7329} 7330 7331 7332static int nl80211_send_eapol_data(struct i802_bss *bss, 7333 const u8 *addr, const u8 *data, 7334 size_t data_len) 7335{ 7336 struct sockaddr_ll ll; 7337 int ret; 7338 7339 if (bss->drv->eapol_tx_sock < 0) { 7340 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7341 return -1; 7342 } 7343 7344 os_memset(&ll, 0, sizeof(ll)); 7345 ll.sll_family = AF_PACKET; 7346 ll.sll_ifindex = bss->ifindex; 7347 ll.sll_protocol = htons(ETH_P_PAE); 7348 ll.sll_halen = ETH_ALEN; 7349 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7350 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7351 (struct sockaddr *) &ll, sizeof(ll)); 7352 if (ret < 0) 7353 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7354 strerror(errno)); 7355 7356 return ret; 7357} 7358 7359 7360static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7361 7362static int wpa_driver_nl80211_hapd_send_eapol( 7363 void *priv, const u8 *addr, const u8 *data, 7364 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7365{ 7366 struct i802_bss *bss = priv; 7367 struct wpa_driver_nl80211_data *drv = bss->drv; 7368 struct ieee80211_hdr *hdr; 7369 size_t len; 7370 u8 *pos; 7371 int res; 7372 int qos = flags & WPA_STA_WMM; 7373#ifndef ANDROID_P2P 7374 if (drv->device_ap_sme || !drv->use_monitor) 7375#else 7376 if (drv->device_ap_sme && !drv->use_monitor) 7377#endif 7378 return nl80211_send_eapol_data(bss, addr, data, data_len); 7379 7380 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7381 data_len; 7382 hdr = os_zalloc(len); 7383 if (hdr == NULL) { 7384 printf("malloc() failed for i802_send_data(len=%lu)\n", 7385 (unsigned long) len); 7386 return -1; 7387 } 7388 7389 hdr->frame_control = 7390 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7391 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7392 if (encrypt) 7393 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7394 if (qos) { 7395 hdr->frame_control |= 7396 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7397 } 7398 7399 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7400 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7401 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7402 pos = (u8 *) (hdr + 1); 7403 7404 if (qos) { 7405 /* Set highest priority in QoS header */ 7406 pos[0] = 7; 7407 pos[1] = 0; 7408 pos += 2; 7409 } 7410 7411 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7412 pos += sizeof(rfc1042_header); 7413 WPA_PUT_BE16(pos, ETH_P_PAE); 7414 pos += 2; 7415 memcpy(pos, data, data_len); 7416 7417 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7418 0, 0, 0, 0); 7419 if (res < 0) { 7420 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7421 "failed: %d (%s)", 7422 (unsigned long) len, errno, strerror(errno)); 7423 } 7424 os_free(hdr); 7425 7426 return res; 7427} 7428 7429 7430static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7431 int total_flags, 7432 int flags_or, int flags_and) 7433{ 7434 struct i802_bss *bss = priv; 7435 struct wpa_driver_nl80211_data *drv = bss->drv; 7436 struct nl_msg *msg; 7437 struct nlattr *flags; 7438 struct nl80211_sta_flag_update upd; 7439 7440 msg = nlmsg_alloc(); 7441 if (!msg) 7442 return -ENOMEM; 7443 7444 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7445 7446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7447 if_nametoindex(bss->ifname)); 7448 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7449 7450 /* 7451 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7452 * can be removed eventually. 7453 */ 7454 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7455 if (!flags) 7456 goto nla_put_failure; 7457 if (total_flags & WPA_STA_AUTHORIZED) 7458 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7459 7460 if (total_flags & WPA_STA_WMM) 7461 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7462 7463 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7464 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7465 7466 if (total_flags & WPA_STA_MFP) 7467 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7468 7469 if (total_flags & WPA_STA_TDLS_PEER) 7470 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7471 7472 nla_nest_end(msg, flags); 7473 7474 os_memset(&upd, 0, sizeof(upd)); 7475 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7476 upd.set = sta_flags_nl80211(flags_or); 7477 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7478 7479 return send_and_recv_msgs(drv, msg, NULL, NULL); 7480 nla_put_failure: 7481 nlmsg_free(msg); 7482 return -ENOBUFS; 7483} 7484 7485 7486static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7487 struct wpa_driver_associate_params *params) 7488{ 7489 enum nl80211_iftype nlmode, old_mode; 7490 struct hostapd_freq_params freq = { 7491 .freq = params->freq, 7492 }; 7493 7494 if (params->p2p) { 7495 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7496 "group (GO)"); 7497 nlmode = NL80211_IFTYPE_P2P_GO; 7498 } else 7499 nlmode = NL80211_IFTYPE_AP; 7500 7501 old_mode = drv->nlmode; 7502 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7503 nl80211_remove_monitor_interface(drv); 7504 return -1; 7505 } 7506 7507 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7508 if (old_mode != nlmode) 7509 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7510 nl80211_remove_monitor_interface(drv); 7511 return -1; 7512 } 7513 7514 return 0; 7515} 7516 7517 7518static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7519{ 7520 struct nl_msg *msg; 7521 int ret = -1; 7522 7523 msg = nlmsg_alloc(); 7524 if (!msg) 7525 return -1; 7526 7527 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7528 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7529 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7530 msg = NULL; 7531 if (ret) { 7532 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7533 "(%s)", ret, strerror(-ret)); 7534 goto nla_put_failure; 7535 } 7536 7537 ret = 0; 7538 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7539 7540nla_put_failure: 7541 nlmsg_free(msg); 7542 return ret; 7543} 7544 7545 7546static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7547 struct wpa_driver_associate_params *params) 7548{ 7549 struct nl_msg *msg; 7550 int ret = -1; 7551 int count = 0; 7552 7553 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7554 7555 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7556 NL80211_IFTYPE_ADHOC)) { 7557 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7558 "IBSS mode"); 7559 return -1; 7560 } 7561 7562retry: 7563 msg = nlmsg_alloc(); 7564 if (!msg) 7565 return -1; 7566 7567 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7569 7570 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7571 goto nla_put_failure; 7572 7573 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7574 params->ssid, params->ssid_len); 7575 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7576 params->ssid); 7577 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7578 drv->ssid_len = params->ssid_len; 7579 7580 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7581 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7582 7583 ret = nl80211_set_conn_keys(params, msg); 7584 if (ret) 7585 goto nla_put_failure; 7586 7587 if (params->bssid && params->fixed_bssid) { 7588 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7589 MAC2STR(params->bssid)); 7590 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7591 } 7592 7593 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7594 params->key_mgmt_suite == KEY_MGMT_PSK || 7595 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7596 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7597 wpa_printf(MSG_DEBUG, " * control port"); 7598 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7599 } 7600 7601 if (params->wpa_ie) { 7602 wpa_hexdump(MSG_DEBUG, 7603 " * Extra IEs for Beacon/Probe Response frames", 7604 params->wpa_ie, params->wpa_ie_len); 7605 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7606 params->wpa_ie); 7607 } 7608 7609 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7610 msg = NULL; 7611 if (ret) { 7612 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7613 ret, strerror(-ret)); 7614 count++; 7615 if (ret == -EALREADY && count == 1) { 7616 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7617 "forced leave"); 7618 nl80211_leave_ibss(drv); 7619 nlmsg_free(msg); 7620 goto retry; 7621 } 7622 7623 goto nla_put_failure; 7624 } 7625 ret = 0; 7626 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7627 7628nla_put_failure: 7629 nlmsg_free(msg); 7630 return ret; 7631} 7632 7633 7634static int wpa_driver_nl80211_try_connect( 7635 struct wpa_driver_nl80211_data *drv, 7636 struct wpa_driver_associate_params *params) 7637{ 7638 struct nl_msg *msg; 7639 enum nl80211_auth_type type; 7640 int ret = 0; 7641 int algs; 7642 7643 msg = nlmsg_alloc(); 7644 if (!msg) 7645 return -1; 7646 7647 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7648 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7649 7650 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7651 if (params->bssid) { 7652 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7653 MAC2STR(params->bssid)); 7654 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7655 } 7656 if (params->freq) { 7657 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7658 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7659 } 7660 if (params->bg_scan_period >= 0) { 7661 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7662 params->bg_scan_period); 7663 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7664 params->bg_scan_period); 7665 } 7666 if (params->ssid) { 7667 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7668 params->ssid, params->ssid_len); 7669 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7670 params->ssid); 7671 if (params->ssid_len > sizeof(drv->ssid)) 7672 goto nla_put_failure; 7673 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7674 drv->ssid_len = params->ssid_len; 7675 } 7676 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7677 if (params->wpa_ie) 7678 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7679 params->wpa_ie); 7680 7681 algs = 0; 7682 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7683 algs++; 7684 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7685 algs++; 7686 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7687 algs++; 7688 if (algs > 1) { 7689 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7690 "selection"); 7691 goto skip_auth_type; 7692 } 7693 7694 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7695 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7696 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7697 type = NL80211_AUTHTYPE_SHARED_KEY; 7698 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7699 type = NL80211_AUTHTYPE_NETWORK_EAP; 7700 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7701 type = NL80211_AUTHTYPE_FT; 7702 else 7703 goto nla_put_failure; 7704 7705 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7706 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7707 7708skip_auth_type: 7709 if (params->wpa_proto) { 7710 enum nl80211_wpa_versions ver = 0; 7711 7712 if (params->wpa_proto & WPA_PROTO_WPA) 7713 ver |= NL80211_WPA_VERSION_1; 7714 if (params->wpa_proto & WPA_PROTO_RSN) 7715 ver |= NL80211_WPA_VERSION_2; 7716 7717 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7718 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7719 } 7720 7721 if (params->pairwise_suite != CIPHER_NONE) { 7722 int cipher; 7723 7724 switch (params->pairwise_suite) { 7725 case CIPHER_SMS4: 7726 cipher = WLAN_CIPHER_SUITE_SMS4; 7727 break; 7728 case CIPHER_WEP40: 7729 cipher = WLAN_CIPHER_SUITE_WEP40; 7730 break; 7731 case CIPHER_WEP104: 7732 cipher = WLAN_CIPHER_SUITE_WEP104; 7733 break; 7734 case CIPHER_CCMP: 7735 cipher = WLAN_CIPHER_SUITE_CCMP; 7736 break; 7737 case CIPHER_GCMP: 7738 cipher = WLAN_CIPHER_SUITE_GCMP; 7739 break; 7740 case CIPHER_TKIP: 7741 default: 7742 cipher = WLAN_CIPHER_SUITE_TKIP; 7743 break; 7744 } 7745 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7746 } 7747 7748 if (params->group_suite != CIPHER_NONE) { 7749 int cipher; 7750 7751 switch (params->group_suite) { 7752 case CIPHER_SMS4: 7753 cipher = WLAN_CIPHER_SUITE_SMS4; 7754 break; 7755 case CIPHER_WEP40: 7756 cipher = WLAN_CIPHER_SUITE_WEP40; 7757 break; 7758 case CIPHER_WEP104: 7759 cipher = WLAN_CIPHER_SUITE_WEP104; 7760 break; 7761 case CIPHER_CCMP: 7762 cipher = WLAN_CIPHER_SUITE_CCMP; 7763 break; 7764 case CIPHER_GCMP: 7765 cipher = WLAN_CIPHER_SUITE_GCMP; 7766 break; 7767 case CIPHER_TKIP: 7768 default: 7769 cipher = WLAN_CIPHER_SUITE_TKIP; 7770 break; 7771 } 7772 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7773 } 7774 7775 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7776 params->key_mgmt_suite == KEY_MGMT_PSK || 7777 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7778 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7779 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7780 int mgmt = WLAN_AKM_SUITE_PSK; 7781 7782 switch (params->key_mgmt_suite) { 7783 case KEY_MGMT_CCKM: 7784 mgmt = WLAN_AKM_SUITE_CCKM; 7785 break; 7786 case KEY_MGMT_802_1X: 7787 mgmt = WLAN_AKM_SUITE_8021X; 7788 break; 7789 case KEY_MGMT_FT_802_1X: 7790 mgmt = WLAN_AKM_SUITE_FT_8021X; 7791 break; 7792 case KEY_MGMT_FT_PSK: 7793 mgmt = WLAN_AKM_SUITE_FT_PSK; 7794 break; 7795 case KEY_MGMT_PSK: 7796 default: 7797 mgmt = WLAN_AKM_SUITE_PSK; 7798 break; 7799 } 7800 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7801 } 7802 7803#ifdef CONFIG_IEEE80211W 7804 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7805 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7806#endif /* CONFIG_IEEE80211W */ 7807 7808 if (params->disable_ht) 7809 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7810 7811 if (params->htcaps && params->htcaps_mask) { 7812 int sz = sizeof(struct ieee80211_ht_capabilities); 7813 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7814 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7815 params->htcaps_mask); 7816 } 7817 7818#ifdef CONFIG_VHT_OVERRIDES 7819 if (params->disable_vht) { 7820 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7821 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7822 } 7823 7824 if (params->vhtcaps && params->vhtcaps_mask) { 7825 int sz = sizeof(struct ieee80211_vht_capabilities); 7826 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7827 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7828 params->vhtcaps_mask); 7829 } 7830#endif /* CONFIG_VHT_OVERRIDES */ 7831 7832 ret = nl80211_set_conn_keys(params, msg); 7833 if (ret) 7834 goto nla_put_failure; 7835 7836 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7837 msg = NULL; 7838 if (ret) { 7839 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7840 "(%s)", ret, strerror(-ret)); 7841 goto nla_put_failure; 7842 } 7843 ret = 0; 7844 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7845 7846nla_put_failure: 7847 nlmsg_free(msg); 7848 return ret; 7849 7850} 7851 7852 7853static int wpa_driver_nl80211_connect( 7854 struct wpa_driver_nl80211_data *drv, 7855 struct wpa_driver_associate_params *params) 7856{ 7857 int ret = wpa_driver_nl80211_try_connect(drv, params); 7858 if (ret == -EALREADY) { 7859 /* 7860 * cfg80211 does not currently accept new connections if 7861 * we are already connected. As a workaround, force 7862 * disconnection and try again. 7863 */ 7864 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7865 "disconnecting before reassociation " 7866 "attempt"); 7867 if (wpa_driver_nl80211_disconnect( 7868 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7869 return -1; 7870 ret = wpa_driver_nl80211_try_connect(drv, params); 7871 } 7872 return ret; 7873} 7874 7875 7876static int wpa_driver_nl80211_associate( 7877 void *priv, struct wpa_driver_associate_params *params) 7878{ 7879 struct i802_bss *bss = priv; 7880 struct wpa_driver_nl80211_data *drv = bss->drv; 7881 int ret = -1; 7882 struct nl_msg *msg; 7883 7884 if (params->mode == IEEE80211_MODE_AP) 7885 return wpa_driver_nl80211_ap(drv, params); 7886 7887 if (params->mode == IEEE80211_MODE_IBSS) 7888 return wpa_driver_nl80211_ibss(drv, params); 7889 7890 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7891 enum nl80211_iftype nlmode = params->p2p ? 7892 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7893 7894 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7895 return -1; 7896 return wpa_driver_nl80211_connect(drv, params); 7897 } 7898 7899 nl80211_mark_disconnected(drv); 7900 7901 msg = nlmsg_alloc(); 7902 if (!msg) 7903 return -1; 7904 7905 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7906 drv->ifindex); 7907 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7908 7909 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7910 if (params->bssid) { 7911 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7912 MAC2STR(params->bssid)); 7913 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7914 } 7915 if (params->freq) { 7916 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7917 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7918 drv->assoc_freq = params->freq; 7919 } else 7920 drv->assoc_freq = 0; 7921 if (params->bg_scan_period >= 0) { 7922 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7923 params->bg_scan_period); 7924 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7925 params->bg_scan_period); 7926 } 7927 if (params->ssid) { 7928 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7929 params->ssid, params->ssid_len); 7930 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7931 params->ssid); 7932 if (params->ssid_len > sizeof(drv->ssid)) 7933 goto nla_put_failure; 7934 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7935 drv->ssid_len = params->ssid_len; 7936 } 7937 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7938 if (params->wpa_ie) 7939 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7940 params->wpa_ie); 7941 7942 if (params->pairwise_suite != CIPHER_NONE) { 7943 int cipher; 7944 7945 switch (params->pairwise_suite) { 7946 case CIPHER_WEP40: 7947 cipher = WLAN_CIPHER_SUITE_WEP40; 7948 break; 7949 case CIPHER_WEP104: 7950 cipher = WLAN_CIPHER_SUITE_WEP104; 7951 break; 7952 case CIPHER_CCMP: 7953 cipher = WLAN_CIPHER_SUITE_CCMP; 7954 break; 7955 case CIPHER_GCMP: 7956 cipher = WLAN_CIPHER_SUITE_GCMP; 7957 break; 7958 case CIPHER_TKIP: 7959 default: 7960 cipher = WLAN_CIPHER_SUITE_TKIP; 7961 break; 7962 } 7963 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7964 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7965 } 7966 7967 if (params->group_suite != CIPHER_NONE) { 7968 int cipher; 7969 7970 switch (params->group_suite) { 7971 case CIPHER_WEP40: 7972 cipher = WLAN_CIPHER_SUITE_WEP40; 7973 break; 7974 case CIPHER_WEP104: 7975 cipher = WLAN_CIPHER_SUITE_WEP104; 7976 break; 7977 case CIPHER_CCMP: 7978 cipher = WLAN_CIPHER_SUITE_CCMP; 7979 break; 7980 case CIPHER_GCMP: 7981 cipher = WLAN_CIPHER_SUITE_GCMP; 7982 break; 7983 case CIPHER_TKIP: 7984 default: 7985 cipher = WLAN_CIPHER_SUITE_TKIP; 7986 break; 7987 } 7988 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7989 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7990 } 7991 7992#ifdef CONFIG_IEEE80211W 7993 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7994 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7995#endif /* CONFIG_IEEE80211W */ 7996 7997 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7998 7999 if (params->prev_bssid) { 8000 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8001 MAC2STR(params->prev_bssid)); 8002 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8003 params->prev_bssid); 8004 } 8005 8006 if (params->disable_ht) 8007 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8008 8009 if (params->htcaps && params->htcaps_mask) { 8010 int sz = sizeof(struct ieee80211_ht_capabilities); 8011 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8012 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8013 params->htcaps_mask); 8014 } 8015 8016#ifdef CONFIG_VHT_OVERRIDES 8017 if (params->disable_vht) { 8018 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8019 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8020 } 8021 8022 if (params->vhtcaps && params->vhtcaps_mask) { 8023 int sz = sizeof(struct ieee80211_vht_capabilities); 8024 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8025 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8026 params->vhtcaps_mask); 8027 } 8028#endif /* CONFIG_VHT_OVERRIDES */ 8029 8030 if (params->p2p) 8031 wpa_printf(MSG_DEBUG, " * P2P group"); 8032 8033 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8034 msg = NULL; 8035 if (ret) { 8036 wpa_dbg(drv->ctx, MSG_DEBUG, 8037 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8038 ret, strerror(-ret)); 8039 nl80211_dump_scan(drv); 8040 goto nla_put_failure; 8041 } 8042 ret = 0; 8043 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8044 "successfully"); 8045 8046nla_put_failure: 8047 nlmsg_free(msg); 8048 return ret; 8049} 8050 8051 8052static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8053 int ifindex, enum nl80211_iftype mode) 8054{ 8055 struct nl_msg *msg; 8056 int ret = -ENOBUFS; 8057 8058 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8059 ifindex, mode, nl80211_iftype_str(mode)); 8060 8061 msg = nlmsg_alloc(); 8062 if (!msg) 8063 return -ENOMEM; 8064 8065 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8066 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8067 goto nla_put_failure; 8068 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8069 8070 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8071 msg = NULL; 8072 if (!ret) 8073 return 0; 8074nla_put_failure: 8075 nlmsg_free(msg); 8076 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8077 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8078 return ret; 8079} 8080 8081 8082static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8083 enum nl80211_iftype nlmode) 8084{ 8085 struct wpa_driver_nl80211_data *drv = bss->drv; 8086 int ret = -1; 8087 int i; 8088 int was_ap = is_ap_interface(drv->nlmode); 8089 int res; 8090 8091 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8092 if (res && nlmode == nl80211_get_ifmode(bss)) 8093 res = 0; 8094 8095 if (res == 0) { 8096 drv->nlmode = nlmode; 8097 ret = 0; 8098 goto done; 8099 } 8100 8101 if (res == -ENODEV) 8102 return -1; 8103 8104 if (nlmode == drv->nlmode) { 8105 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8106 "requested mode - ignore error"); 8107 ret = 0; 8108 goto done; /* Already in the requested mode */ 8109 } 8110 8111 /* mac80211 doesn't allow mode changes while the device is up, so 8112 * take the device down, try to set the mode again, and bring the 8113 * device back up. 8114 */ 8115 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8116 "interface down"); 8117 for (i = 0; i < 10; i++) { 8118 res = i802_set_iface_flags(bss, 0); 8119 if (res == -EACCES || res == -ENODEV) 8120 break; 8121 if (res == 0) { 8122 /* Try to set the mode again while the interface is 8123 * down */ 8124 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8125 if (ret == -EACCES) 8126 break; 8127 res = i802_set_iface_flags(bss, 1); 8128 if (res && !ret) 8129 ret = -1; 8130 else if (ret != -EBUSY) 8131 break; 8132 } else 8133 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8134 "interface down"); 8135 os_sleep(0, 100000); 8136 } 8137 8138 if (!ret) { 8139 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8140 "interface is down"); 8141 drv->nlmode = nlmode; 8142 drv->ignore_if_down_event = 1; 8143 } 8144 8145done: 8146 if (ret) { 8147 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8148 "from %d failed", nlmode, drv->nlmode); 8149 return ret; 8150 } 8151 8152 if (is_p2p_net_interface(nlmode)) 8153 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8154 else if (drv->disabled_11b_rates) 8155 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8156 8157 if (is_ap_interface(nlmode)) { 8158 nl80211_mgmt_unsubscribe(bss, "start AP"); 8159 /* Setup additional AP mode functionality if needed */ 8160 if (nl80211_setup_ap(bss)) 8161 return -1; 8162 } else if (was_ap) { 8163 /* Remove additional AP mode functionality */ 8164 nl80211_teardown_ap(bss); 8165 } else { 8166 nl80211_mgmt_unsubscribe(bss, "mode change"); 8167 } 8168 8169 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8170 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8171 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8172 "frame processing - ignore for now"); 8173 8174 return 0; 8175} 8176 8177 8178static int wpa_driver_nl80211_get_capa(void *priv, 8179 struct wpa_driver_capa *capa) 8180{ 8181 struct i802_bss *bss = priv; 8182 struct wpa_driver_nl80211_data *drv = bss->drv; 8183 if (!drv->has_capability) 8184 return -1; 8185 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8186 if (drv->extended_capa && drv->extended_capa_mask) { 8187 capa->extended_capa = drv->extended_capa; 8188 capa->extended_capa_mask = drv->extended_capa_mask; 8189 capa->extended_capa_len = drv->extended_capa_len; 8190 } 8191 8192 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8193 !drv->allow_p2p_device) { 8194 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8195 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8196 } 8197 8198 return 0; 8199} 8200 8201 8202static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8203{ 8204 struct i802_bss *bss = priv; 8205 struct wpa_driver_nl80211_data *drv = bss->drv; 8206 8207 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8208 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8209 drv->operstate = state; 8210 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8211 state ? IF_OPER_UP : IF_OPER_DORMANT); 8212} 8213 8214 8215static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8216{ 8217 struct i802_bss *bss = priv; 8218 struct wpa_driver_nl80211_data *drv = bss->drv; 8219 struct nl_msg *msg; 8220 struct nl80211_sta_flag_update upd; 8221 8222 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8223 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8224 8225 msg = nlmsg_alloc(); 8226 if (!msg) 8227 return -ENOMEM; 8228 8229 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8230 8231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8232 if_nametoindex(bss->ifname)); 8233 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8234 8235 os_memset(&upd, 0, sizeof(upd)); 8236 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8237 if (authorized) 8238 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8239 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8240 8241 return send_and_recv_msgs(drv, msg, NULL, NULL); 8242 nla_put_failure: 8243 nlmsg_free(msg); 8244 return -ENOBUFS; 8245} 8246 8247 8248/* Set kernel driver on given frequency (MHz) */ 8249static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8250{ 8251 struct i802_bss *bss = priv; 8252 return wpa_driver_nl80211_set_freq(bss, freq); 8253} 8254 8255 8256#if defined(HOSTAPD) || defined(CONFIG_AP) 8257 8258static inline int min_int(int a, int b) 8259{ 8260 if (a < b) 8261 return a; 8262 return b; 8263} 8264 8265 8266static int get_key_handler(struct nl_msg *msg, void *arg) 8267{ 8268 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8269 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8270 8271 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8272 genlmsg_attrlen(gnlh, 0), NULL); 8273 8274 /* 8275 * TODO: validate the key index and mac address! 8276 * Otherwise, there's a race condition as soon as 8277 * the kernel starts sending key notifications. 8278 */ 8279 8280 if (tb[NL80211_ATTR_KEY_SEQ]) 8281 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8282 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8283 return NL_SKIP; 8284} 8285 8286 8287static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8288 int idx, u8 *seq) 8289{ 8290 struct i802_bss *bss = priv; 8291 struct wpa_driver_nl80211_data *drv = bss->drv; 8292 struct nl_msg *msg; 8293 8294 msg = nlmsg_alloc(); 8295 if (!msg) 8296 return -ENOMEM; 8297 8298 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8299 8300 if (addr) 8301 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8302 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8303 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8304 8305 memset(seq, 0, 6); 8306 8307 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8308 nla_put_failure: 8309 nlmsg_free(msg); 8310 return -ENOBUFS; 8311} 8312 8313 8314static int i802_set_rts(void *priv, int rts) 8315{ 8316 struct i802_bss *bss = priv; 8317 struct wpa_driver_nl80211_data *drv = bss->drv; 8318 struct nl_msg *msg; 8319 int ret = -ENOBUFS; 8320 u32 val; 8321 8322 msg = nlmsg_alloc(); 8323 if (!msg) 8324 return -ENOMEM; 8325 8326 if (rts >= 2347) 8327 val = (u32) -1; 8328 else 8329 val = rts; 8330 8331 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8332 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8333 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8334 8335 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8336 msg = NULL; 8337 if (!ret) 8338 return 0; 8339nla_put_failure: 8340 nlmsg_free(msg); 8341 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8342 "%d (%s)", rts, ret, strerror(-ret)); 8343 return ret; 8344} 8345 8346 8347static int i802_set_frag(void *priv, int frag) 8348{ 8349 struct i802_bss *bss = priv; 8350 struct wpa_driver_nl80211_data *drv = bss->drv; 8351 struct nl_msg *msg; 8352 int ret = -ENOBUFS; 8353 u32 val; 8354 8355 msg = nlmsg_alloc(); 8356 if (!msg) 8357 return -ENOMEM; 8358 8359 if (frag >= 2346) 8360 val = (u32) -1; 8361 else 8362 val = frag; 8363 8364 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8366 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8367 8368 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8369 msg = NULL; 8370 if (!ret) 8371 return 0; 8372nla_put_failure: 8373 nlmsg_free(msg); 8374 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8375 "%d: %d (%s)", frag, ret, strerror(-ret)); 8376 return ret; 8377} 8378 8379 8380static int i802_flush(void *priv) 8381{ 8382 struct i802_bss *bss = priv; 8383 struct wpa_driver_nl80211_data *drv = bss->drv; 8384 struct nl_msg *msg; 8385 int res; 8386 8387 msg = nlmsg_alloc(); 8388 if (!msg) 8389 return -1; 8390 8391 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8392 8393 /* 8394 * XXX: FIX! this needs to flush all VLANs too 8395 */ 8396 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8397 if_nametoindex(bss->ifname)); 8398 8399 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8400 if (res) { 8401 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8402 "(%s)", res, strerror(-res)); 8403 } 8404 return res; 8405 nla_put_failure: 8406 nlmsg_free(msg); 8407 return -ENOBUFS; 8408} 8409 8410#endif /* HOSTAPD || CONFIG_AP */ 8411 8412 8413static int get_sta_handler(struct nl_msg *msg, void *arg) 8414{ 8415 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8416 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8417 struct hostap_sta_driver_data *data = arg; 8418 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8419 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8420 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8421 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8422 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8423 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8424 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8425 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8426 }; 8427 8428 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8429 genlmsg_attrlen(gnlh, 0), NULL); 8430 8431 /* 8432 * TODO: validate the interface and mac address! 8433 * Otherwise, there's a race condition as soon as 8434 * the kernel starts sending station notifications. 8435 */ 8436 8437 if (!tb[NL80211_ATTR_STA_INFO]) { 8438 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8439 return NL_SKIP; 8440 } 8441 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8442 tb[NL80211_ATTR_STA_INFO], 8443 stats_policy)) { 8444 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8445 return NL_SKIP; 8446 } 8447 8448 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8449 data->inactive_msec = 8450 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8451 if (stats[NL80211_STA_INFO_RX_BYTES]) 8452 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8453 if (stats[NL80211_STA_INFO_TX_BYTES]) 8454 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8455 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8456 data->rx_packets = 8457 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8458 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8459 data->tx_packets = 8460 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8461 if (stats[NL80211_STA_INFO_TX_FAILED]) 8462 data->tx_retry_failed = 8463 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8464 8465 return NL_SKIP; 8466} 8467 8468static int i802_read_sta_data(struct i802_bss *bss, 8469 struct hostap_sta_driver_data *data, 8470 const u8 *addr) 8471{ 8472 struct wpa_driver_nl80211_data *drv = bss->drv; 8473 struct nl_msg *msg; 8474 8475 os_memset(data, 0, sizeof(*data)); 8476 msg = nlmsg_alloc(); 8477 if (!msg) 8478 return -ENOMEM; 8479 8480 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8481 8482 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8483 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8484 8485 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8486 nla_put_failure: 8487 nlmsg_free(msg); 8488 return -ENOBUFS; 8489} 8490 8491 8492#if defined(HOSTAPD) || defined(CONFIG_AP) 8493 8494static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8495 int cw_min, int cw_max, int burst_time) 8496{ 8497 struct i802_bss *bss = priv; 8498 struct wpa_driver_nl80211_data *drv = bss->drv; 8499 struct nl_msg *msg; 8500 struct nlattr *txq, *params; 8501 8502 msg = nlmsg_alloc(); 8503 if (!msg) 8504 return -1; 8505 8506 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8507 8508 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8509 8510 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8511 if (!txq) 8512 goto nla_put_failure; 8513 8514 /* We are only sending parameters for a single TXQ at a time */ 8515 params = nla_nest_start(msg, 1); 8516 if (!params) 8517 goto nla_put_failure; 8518 8519 switch (queue) { 8520 case 0: 8521 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8522 break; 8523 case 1: 8524 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8525 break; 8526 case 2: 8527 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8528 break; 8529 case 3: 8530 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8531 break; 8532 } 8533 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8534 * 32 usec, so need to convert the value here. */ 8535 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8536 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8537 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8538 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8539 8540 nla_nest_end(msg, params); 8541 8542 nla_nest_end(msg, txq); 8543 8544 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8545 return 0; 8546 msg = NULL; 8547 nla_put_failure: 8548 nlmsg_free(msg); 8549 return -1; 8550} 8551 8552 8553static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8554 const char *ifname, int vlan_id) 8555{ 8556 struct wpa_driver_nl80211_data *drv = bss->drv; 8557 struct nl_msg *msg; 8558 int ret = -ENOBUFS; 8559 8560 msg = nlmsg_alloc(); 8561 if (!msg) 8562 return -ENOMEM; 8563 8564 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8565 8566 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8567 if_nametoindex(bss->ifname)); 8568 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8569 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8570 if_nametoindex(ifname)); 8571 8572 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8573 msg = NULL; 8574 if (ret < 0) { 8575 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8576 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8577 MAC2STR(addr), ifname, vlan_id, ret, 8578 strerror(-ret)); 8579 } 8580 nla_put_failure: 8581 nlmsg_free(msg); 8582 return ret; 8583} 8584 8585 8586static int i802_get_inact_sec(void *priv, const u8 *addr) 8587{ 8588 struct hostap_sta_driver_data data; 8589 int ret; 8590 8591 data.inactive_msec = (unsigned long) -1; 8592 ret = i802_read_sta_data(priv, &data, addr); 8593 if (ret || data.inactive_msec == (unsigned long) -1) 8594 return -1; 8595 return data.inactive_msec / 1000; 8596} 8597 8598 8599static int i802_sta_clear_stats(void *priv, const u8 *addr) 8600{ 8601#if 0 8602 /* TODO */ 8603#endif 8604 return 0; 8605} 8606 8607 8608static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8609 int reason) 8610{ 8611 struct i802_bss *bss = priv; 8612 struct wpa_driver_nl80211_data *drv = bss->drv; 8613 struct ieee80211_mgmt mgmt; 8614 8615 if (drv->device_ap_sme) 8616 return wpa_driver_nl80211_sta_remove(bss, addr); 8617 8618 memset(&mgmt, 0, sizeof(mgmt)); 8619 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8620 WLAN_FC_STYPE_DEAUTH); 8621 memcpy(mgmt.da, addr, ETH_ALEN); 8622 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8623 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8624 mgmt.u.deauth.reason_code = host_to_le16(reason); 8625 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8626 IEEE80211_HDRLEN + 8627 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8628 0); 8629} 8630 8631 8632static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8633 int reason) 8634{ 8635 struct i802_bss *bss = priv; 8636 struct wpa_driver_nl80211_data *drv = bss->drv; 8637 struct ieee80211_mgmt mgmt; 8638 8639 if (drv->device_ap_sme) 8640 return wpa_driver_nl80211_sta_remove(bss, addr); 8641 8642 memset(&mgmt, 0, sizeof(mgmt)); 8643 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8644 WLAN_FC_STYPE_DISASSOC); 8645 memcpy(mgmt.da, addr, ETH_ALEN); 8646 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8647 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8648 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8649 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8650 IEEE80211_HDRLEN + 8651 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8652 0); 8653} 8654 8655#endif /* HOSTAPD || CONFIG_AP */ 8656 8657#ifdef HOSTAPD 8658 8659static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8660{ 8661 int i; 8662 int *old; 8663 8664 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8665 ifidx); 8666 for (i = 0; i < drv->num_if_indices; i++) { 8667 if (drv->if_indices[i] == 0) { 8668 drv->if_indices[i] = ifidx; 8669 return; 8670 } 8671 } 8672 8673 if (drv->if_indices != drv->default_if_indices) 8674 old = drv->if_indices; 8675 else 8676 old = NULL; 8677 8678 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8679 sizeof(int)); 8680 if (!drv->if_indices) { 8681 if (!old) 8682 drv->if_indices = drv->default_if_indices; 8683 else 8684 drv->if_indices = old; 8685 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8686 "interfaces"); 8687 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8688 return; 8689 } else if (!old) 8690 os_memcpy(drv->if_indices, drv->default_if_indices, 8691 sizeof(drv->default_if_indices)); 8692 drv->if_indices[drv->num_if_indices] = ifidx; 8693 drv->num_if_indices++; 8694} 8695 8696 8697static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8698{ 8699 int i; 8700 8701 for (i = 0; i < drv->num_if_indices; i++) { 8702 if (drv->if_indices[i] == ifidx) { 8703 drv->if_indices[i] = 0; 8704 break; 8705 } 8706 } 8707} 8708 8709 8710static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8711{ 8712 int i; 8713 8714 for (i = 0; i < drv->num_if_indices; i++) 8715 if (drv->if_indices[i] == ifidx) 8716 return 1; 8717 8718 return 0; 8719} 8720 8721 8722static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8723 const char *bridge_ifname, char *ifname_wds) 8724{ 8725 struct i802_bss *bss = priv; 8726 struct wpa_driver_nl80211_data *drv = bss->drv; 8727 char name[IFNAMSIZ + 1]; 8728 8729 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8730 if (ifname_wds) 8731 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8732 8733 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8734 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8735 if (val) { 8736 if (!if_nametoindex(name)) { 8737 if (nl80211_create_iface(drv, name, 8738 NL80211_IFTYPE_AP_VLAN, 8739 bss->addr, 1, NULL, NULL) < 0) 8740 return -1; 8741 if (bridge_ifname && 8742 linux_br_add_if(drv->global->ioctl_sock, 8743 bridge_ifname, name) < 0) 8744 return -1; 8745 } 8746 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8747 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8748 "interface %s up", name); 8749 } 8750 return i802_set_sta_vlan(priv, addr, name, 0); 8751 } else { 8752 if (bridge_ifname) 8753 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8754 name); 8755 8756 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8757 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8758 name); 8759 } 8760} 8761 8762 8763static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8764{ 8765 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8766 struct sockaddr_ll lladdr; 8767 unsigned char buf[3000]; 8768 int len; 8769 socklen_t fromlen = sizeof(lladdr); 8770 8771 len = recvfrom(sock, buf, sizeof(buf), 0, 8772 (struct sockaddr *)&lladdr, &fromlen); 8773 if (len < 0) { 8774 perror("recv"); 8775 return; 8776 } 8777 8778 if (have_ifidx(drv, lladdr.sll_ifindex)) 8779 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8780} 8781 8782 8783static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8784 struct i802_bss *bss, 8785 const char *brname, const char *ifname) 8786{ 8787 int ifindex; 8788 char in_br[IFNAMSIZ]; 8789 8790 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8791 ifindex = if_nametoindex(brname); 8792 if (ifindex == 0) { 8793 /* 8794 * Bridge was configured, but the bridge device does 8795 * not exist. Try to add it now. 8796 */ 8797 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8798 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8799 "bridge interface %s: %s", 8800 brname, strerror(errno)); 8801 return -1; 8802 } 8803 bss->added_bridge = 1; 8804 add_ifidx(drv, if_nametoindex(brname)); 8805 } 8806 8807 if (linux_br_get(in_br, ifname) == 0) { 8808 if (os_strcmp(in_br, brname) == 0) 8809 return 0; /* already in the bridge */ 8810 8811 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8812 "bridge %s", ifname, in_br); 8813 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8814 0) { 8815 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8816 "remove interface %s from bridge " 8817 "%s: %s", 8818 ifname, brname, strerror(errno)); 8819 return -1; 8820 } 8821 } 8822 8823 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8824 ifname, brname); 8825 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8826 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8827 "into bridge %s: %s", 8828 ifname, brname, strerror(errno)); 8829 return -1; 8830 } 8831 bss->added_if_into_bridge = 1; 8832 8833 return 0; 8834} 8835 8836 8837static void *i802_init(struct hostapd_data *hapd, 8838 struct wpa_init_params *params) 8839{ 8840 struct wpa_driver_nl80211_data *drv; 8841 struct i802_bss *bss; 8842 size_t i; 8843 char brname[IFNAMSIZ]; 8844 int ifindex, br_ifindex; 8845 int br_added = 0; 8846 8847 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8848 params->global_priv); 8849 if (bss == NULL) 8850 return NULL; 8851 8852 drv = bss->drv; 8853 drv->nlmode = NL80211_IFTYPE_AP; 8854 drv->eapol_sock = -1; 8855 8856 if (linux_br_get(brname, params->ifname) == 0) { 8857 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8858 params->ifname, brname); 8859 br_ifindex = if_nametoindex(brname); 8860 } else { 8861 brname[0] = '\0'; 8862 br_ifindex = 0; 8863 } 8864 8865 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8866 drv->if_indices = drv->default_if_indices; 8867 for (i = 0; i < params->num_bridge; i++) { 8868 if (params->bridge[i]) { 8869 ifindex = if_nametoindex(params->bridge[i]); 8870 if (ifindex) 8871 add_ifidx(drv, ifindex); 8872 if (ifindex == br_ifindex) 8873 br_added = 1; 8874 } 8875 } 8876 if (!br_added && br_ifindex && 8877 (params->num_bridge == 0 || !params->bridge[0])) 8878 add_ifidx(drv, br_ifindex); 8879 8880 /* start listening for EAPOL on the default AP interface */ 8881 add_ifidx(drv, drv->ifindex); 8882 8883 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8884 goto failed; 8885 8886 if (params->bssid) { 8887 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8888 params->bssid)) 8889 goto failed; 8890 } 8891 8892 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8893 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8894 "into AP mode", bss->ifname); 8895 goto failed; 8896 } 8897 8898 if (params->num_bridge && params->bridge[0] && 8899 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8900 goto failed; 8901 8902 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8903 goto failed; 8904 8905 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8906 if (drv->eapol_sock < 0) { 8907 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8908 goto failed; 8909 } 8910 8911 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8912 { 8913 printf("Could not register read socket for eapol\n"); 8914 goto failed; 8915 } 8916 8917 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8918 params->own_addr)) 8919 goto failed; 8920 8921 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8922 8923 return bss; 8924 8925failed: 8926 wpa_driver_nl80211_deinit(bss); 8927 return NULL; 8928} 8929 8930 8931static void i802_deinit(void *priv) 8932{ 8933 struct i802_bss *bss = priv; 8934 wpa_driver_nl80211_deinit(bss); 8935} 8936 8937#endif /* HOSTAPD */ 8938 8939 8940static enum nl80211_iftype wpa_driver_nl80211_if_type( 8941 enum wpa_driver_if_type type) 8942{ 8943 switch (type) { 8944 case WPA_IF_STATION: 8945 return NL80211_IFTYPE_STATION; 8946 case WPA_IF_P2P_CLIENT: 8947 case WPA_IF_P2P_GROUP: 8948 return NL80211_IFTYPE_P2P_CLIENT; 8949 case WPA_IF_AP_VLAN: 8950 return NL80211_IFTYPE_AP_VLAN; 8951 case WPA_IF_AP_BSS: 8952 return NL80211_IFTYPE_AP; 8953 case WPA_IF_P2P_GO: 8954 return NL80211_IFTYPE_P2P_GO; 8955 case WPA_IF_P2P_DEVICE: 8956 return NL80211_IFTYPE_P2P_DEVICE; 8957 } 8958 return -1; 8959} 8960 8961 8962#ifdef CONFIG_P2P 8963 8964static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8965{ 8966 struct wpa_driver_nl80211_data *drv; 8967 dl_list_for_each(drv, &global->interfaces, 8968 struct wpa_driver_nl80211_data, list) { 8969 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8970 return 1; 8971 } 8972 return 0; 8973} 8974 8975 8976static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8977 u8 *new_addr) 8978{ 8979 unsigned int idx; 8980 8981 if (!drv->global) 8982 return -1; 8983 8984 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8985 for (idx = 0; idx < 64; idx++) { 8986 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8987 new_addr[0] ^= idx << 2; 8988 if (!nl80211_addr_in_use(drv->global, new_addr)) 8989 break; 8990 } 8991 if (idx == 64) 8992 return -1; 8993 8994 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8995 MACSTR, MAC2STR(new_addr)); 8996 8997 return 0; 8998} 8999 9000#endif /* CONFIG_P2P */ 9001 9002 9003struct wdev_info { 9004 u64 wdev_id; 9005 int wdev_id_set; 9006 u8 macaddr[ETH_ALEN]; 9007}; 9008 9009static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9010{ 9011 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9012 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9013 struct wdev_info *wi = arg; 9014 9015 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9016 genlmsg_attrlen(gnlh, 0), NULL); 9017 if (tb[NL80211_ATTR_WDEV]) { 9018 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9019 wi->wdev_id_set = 1; 9020 } 9021 9022 if (tb[NL80211_ATTR_MAC]) 9023 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9024 ETH_ALEN); 9025 9026 return NL_SKIP; 9027} 9028 9029 9030static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9031 const char *ifname, const u8 *addr, 9032 void *bss_ctx, void **drv_priv, 9033 char *force_ifname, u8 *if_addr, 9034 const char *bridge) 9035{ 9036 enum nl80211_iftype nlmode; 9037 struct i802_bss *bss = priv; 9038 struct wpa_driver_nl80211_data *drv = bss->drv; 9039 int ifidx; 9040#ifdef HOSTAPD 9041 struct i802_bss *new_bss = NULL; 9042 9043 if (type == WPA_IF_AP_BSS) { 9044 new_bss = os_zalloc(sizeof(*new_bss)); 9045 if (new_bss == NULL) 9046 return -1; 9047 } 9048#endif /* HOSTAPD */ 9049 9050 if (addr) 9051 os_memcpy(if_addr, addr, ETH_ALEN); 9052 nlmode = wpa_driver_nl80211_if_type(type); 9053 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9054 struct wdev_info p2pdev_info; 9055 9056 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9057 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9058 0, nl80211_wdev_handler, 9059 &p2pdev_info); 9060 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9061 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9062 ifname); 9063 return -1; 9064 } 9065 9066 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9067 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9068 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9069 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9070 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9071 ifname, 9072 (long long unsigned int) p2pdev_info.wdev_id); 9073 } else { 9074 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9075 0, NULL, NULL); 9076 if (ifidx < 0) { 9077#ifdef HOSTAPD 9078 os_free(new_bss); 9079#endif /* HOSTAPD */ 9080 return -1; 9081 } 9082 } 9083 9084 if (!addr) { 9085 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9086 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9087 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9088 bss->ifname, if_addr) < 0) { 9089 nl80211_remove_iface(drv, ifidx); 9090 return -1; 9091 } 9092 } 9093 9094#ifdef CONFIG_P2P 9095 if (!addr && 9096 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9097 type == WPA_IF_P2P_GO)) { 9098 /* Enforce unique P2P Interface Address */ 9099 u8 new_addr[ETH_ALEN]; 9100 9101 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9102 new_addr) < 0) { 9103 nl80211_remove_iface(drv, ifidx); 9104 return -1; 9105 } 9106 if (nl80211_addr_in_use(drv->global, new_addr)) { 9107 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9108 "for P2P group interface"); 9109 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9110 nl80211_remove_iface(drv, ifidx); 9111 return -1; 9112 } 9113 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9114 new_addr) < 0) { 9115 nl80211_remove_iface(drv, ifidx); 9116 return -1; 9117 } 9118 } 9119 os_memcpy(if_addr, new_addr, ETH_ALEN); 9120 } 9121#endif /* CONFIG_P2P */ 9122 9123#ifdef HOSTAPD 9124 if (bridge && 9125 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9126 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9127 "interface %s to a bridge %s", ifname, bridge); 9128 nl80211_remove_iface(drv, ifidx); 9129 os_free(new_bss); 9130 return -1; 9131 } 9132 9133 if (type == WPA_IF_AP_BSS) { 9134 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9135 { 9136 nl80211_remove_iface(drv, ifidx); 9137 os_free(new_bss); 9138 return -1; 9139 } 9140 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9141 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9142 new_bss->ifindex = ifidx; 9143 new_bss->drv = drv; 9144 new_bss->next = drv->first_bss.next; 9145 new_bss->freq = drv->first_bss.freq; 9146 new_bss->ctx = bss_ctx; 9147 drv->first_bss.next = new_bss; 9148 if (drv_priv) 9149 *drv_priv = new_bss; 9150 nl80211_init_bss(new_bss); 9151 9152 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9153 if (nl80211_setup_ap(new_bss)) 9154 return -1; 9155 } 9156#endif /* HOSTAPD */ 9157 9158 if (drv->global) 9159 drv->global->if_add_ifindex = ifidx; 9160 9161 return 0; 9162} 9163 9164 9165static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9166 enum wpa_driver_if_type type, 9167 const char *ifname) 9168{ 9169 struct wpa_driver_nl80211_data *drv = bss->drv; 9170 int ifindex = if_nametoindex(ifname); 9171 9172 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9173 __func__, type, ifname, ifindex); 9174 if (ifindex <= 0) 9175 return -1; 9176 9177 nl80211_remove_iface(drv, ifindex); 9178 9179#ifdef HOSTAPD 9180 if (type != WPA_IF_AP_BSS) 9181 return 0; 9182 9183 if (bss->added_if_into_bridge) { 9184 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9185 bss->ifname) < 0) 9186 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9187 "interface %s from bridge %s: %s", 9188 bss->ifname, bss->brname, strerror(errno)); 9189 } 9190 if (bss->added_bridge) { 9191 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9192 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9193 "bridge %s: %s", 9194 bss->brname, strerror(errno)); 9195 } 9196 9197 if (bss != &drv->first_bss) { 9198 struct i802_bss *tbss; 9199 9200 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9201 if (tbss->next == bss) { 9202 tbss->next = bss->next; 9203 /* Unsubscribe management frames */ 9204 nl80211_teardown_ap(bss); 9205 nl80211_destroy_bss(bss); 9206 os_free(bss); 9207 bss = NULL; 9208 break; 9209 } 9210 } 9211 if (bss) 9212 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9213 "BSS %p in the list", __func__, bss); 9214 } 9215#endif /* HOSTAPD */ 9216 9217 return 0; 9218} 9219 9220 9221static int cookie_handler(struct nl_msg *msg, void *arg) 9222{ 9223 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9224 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9225 u64 *cookie = arg; 9226 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9227 genlmsg_attrlen(gnlh, 0), NULL); 9228 if (tb[NL80211_ATTR_COOKIE]) 9229 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9230 return NL_SKIP; 9231} 9232 9233 9234static int nl80211_send_frame_cmd(struct i802_bss *bss, 9235 unsigned int freq, unsigned int wait, 9236 const u8 *buf, size_t buf_len, 9237 u64 *cookie_out, int no_cck, int no_ack, 9238 int offchanok) 9239{ 9240 struct wpa_driver_nl80211_data *drv = bss->drv; 9241 struct nl_msg *msg; 9242 u64 cookie; 9243 int ret = -1; 9244 9245 msg = nlmsg_alloc(); 9246 if (!msg) 9247 return -1; 9248 9249 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9250 "no_ack=%d offchanok=%d", 9251 freq, wait, no_cck, no_ack, offchanok); 9252 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9253 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9254 9255 if (nl80211_set_iface_id(msg, bss) < 0) 9256 goto nla_put_failure; 9257 if (freq) 9258 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9259 if (wait) 9260 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9261 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9262 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9263 if (no_cck) 9264 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9265 if (no_ack) 9266 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9267 9268 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9269 9270 cookie = 0; 9271 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9272 msg = NULL; 9273 if (ret) { 9274 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9275 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9276 freq, wait); 9277 goto nla_put_failure; 9278 } 9279 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9280 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9281 (long long unsigned int) cookie); 9282 9283 if (cookie_out) 9284 *cookie_out = no_ack ? (u64) -1 : cookie; 9285 9286nla_put_failure: 9287 nlmsg_free(msg); 9288 return ret; 9289} 9290 9291 9292static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9293 unsigned int freq, 9294 unsigned int wait_time, 9295 const u8 *dst, const u8 *src, 9296 const u8 *bssid, 9297 const u8 *data, size_t data_len, 9298 int no_cck) 9299{ 9300 struct wpa_driver_nl80211_data *drv = bss->drv; 9301 int ret = -1; 9302 u8 *buf; 9303 struct ieee80211_hdr *hdr; 9304 9305 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9306 "freq=%u MHz wait=%d ms no_cck=%d)", 9307 drv->ifindex, freq, wait_time, no_cck); 9308 9309 buf = os_zalloc(24 + data_len); 9310 if (buf == NULL) 9311 return ret; 9312 os_memcpy(buf + 24, data, data_len); 9313 hdr = (struct ieee80211_hdr *) buf; 9314 hdr->frame_control = 9315 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9316 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9317 os_memcpy(hdr->addr2, src, ETH_ALEN); 9318 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9319 9320 if (is_ap_interface(drv->nlmode)) 9321 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9322 0, freq, no_cck, 1, 9323 wait_time); 9324 else 9325 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9326 24 + data_len, 9327 &drv->send_action_cookie, 9328 no_cck, 0, 1); 9329 9330 os_free(buf); 9331 return ret; 9332} 9333 9334 9335static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9336{ 9337 struct i802_bss *bss = priv; 9338 struct wpa_driver_nl80211_data *drv = bss->drv; 9339 struct nl_msg *msg; 9340 int ret; 9341 9342 msg = nlmsg_alloc(); 9343 if (!msg) 9344 return; 9345 9346 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9347 (long long unsigned int) drv->send_action_cookie); 9348 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9349 9350 if (nl80211_set_iface_id(msg, bss) < 0) 9351 goto nla_put_failure; 9352 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9353 9354 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9355 msg = NULL; 9356 if (ret) 9357 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9358 "(%s)", ret, strerror(-ret)); 9359 9360 nla_put_failure: 9361 nlmsg_free(msg); 9362} 9363 9364 9365static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9366 unsigned int duration) 9367{ 9368 struct i802_bss *bss = priv; 9369 struct wpa_driver_nl80211_data *drv = bss->drv; 9370 struct nl_msg *msg; 9371 int ret; 9372 u64 cookie; 9373 9374 msg = nlmsg_alloc(); 9375 if (!msg) 9376 return -1; 9377 9378 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9379 9380 if (nl80211_set_iface_id(msg, bss) < 0) 9381 goto nla_put_failure; 9382 9383 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9384 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9385 9386 cookie = 0; 9387 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9388 msg = NULL; 9389 if (ret == 0) { 9390 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9391 "0x%llx for freq=%u MHz duration=%u", 9392 (long long unsigned int) cookie, freq, duration); 9393 drv->remain_on_chan_cookie = cookie; 9394 drv->pending_remain_on_chan = 1; 9395 return 0; 9396 } 9397 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9398 "(freq=%d duration=%u): %d (%s)", 9399 freq, duration, ret, strerror(-ret)); 9400nla_put_failure: 9401 nlmsg_free(msg); 9402 return -1; 9403} 9404 9405 9406static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9407{ 9408 struct i802_bss *bss = priv; 9409 struct wpa_driver_nl80211_data *drv = bss->drv; 9410 struct nl_msg *msg; 9411 int ret; 9412 9413 if (!drv->pending_remain_on_chan) { 9414 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9415 "to cancel"); 9416 return -1; 9417 } 9418 9419 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9420 "0x%llx", 9421 (long long unsigned int) drv->remain_on_chan_cookie); 9422 9423 msg = nlmsg_alloc(); 9424 if (!msg) 9425 return -1; 9426 9427 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9428 9429 if (nl80211_set_iface_id(msg, bss) < 0) 9430 goto nla_put_failure; 9431 9432 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9433 9434 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9435 msg = NULL; 9436 if (ret == 0) 9437 return 0; 9438 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9439 "%d (%s)", ret, strerror(-ret)); 9440nla_put_failure: 9441 nlmsg_free(msg); 9442 return -1; 9443} 9444 9445 9446static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9447{ 9448 struct wpa_driver_nl80211_data *drv = bss->drv; 9449 9450 if (!report) { 9451 if (bss->nl_preq && drv->device_ap_sme && 9452 is_ap_interface(drv->nlmode)) { 9453 /* 9454 * Do not disable Probe Request reporting that was 9455 * enabled in nl80211_setup_ap(). 9456 */ 9457 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9458 "Probe Request reporting nl_preq=%p while " 9459 "in AP mode", bss->nl_preq); 9460 } else if (bss->nl_preq) { 9461 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9462 "reporting nl_preq=%p", bss->nl_preq); 9463 eloop_unregister_read_sock( 9464 nl_socket_get_fd(bss->nl_preq)); 9465 nl_destroy_handles(&bss->nl_preq); 9466 } 9467 return 0; 9468 } 9469 9470 if (bss->nl_preq) { 9471 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9472 "already on! nl_preq=%p", bss->nl_preq); 9473 return 0; 9474 } 9475 9476 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9477 if (bss->nl_preq == NULL) 9478 return -1; 9479 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9480 "reporting nl_preq=%p", bss->nl_preq); 9481 9482 if (nl80211_register_frame(bss, bss->nl_preq, 9483 (WLAN_FC_TYPE_MGMT << 2) | 9484 (WLAN_FC_STYPE_PROBE_REQ << 4), 9485 NULL, 0) < 0) 9486 goto out_err; 9487 9488 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9489 wpa_driver_nl80211_event_receive, bss->nl_cb, 9490 bss->nl_preq); 9491 9492 return 0; 9493 9494 out_err: 9495 nl_destroy_handles(&bss->nl_preq); 9496 return -1; 9497} 9498 9499 9500static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9501 int ifindex, int disabled) 9502{ 9503 struct nl_msg *msg; 9504 struct nlattr *bands, *band; 9505 int ret; 9506 9507 msg = nlmsg_alloc(); 9508 if (!msg) 9509 return -1; 9510 9511 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9512 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9513 9514 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9515 if (!bands) 9516 goto nla_put_failure; 9517 9518 /* 9519 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9520 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9521 * rates. All 5 GHz rates are left enabled. 9522 */ 9523 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9524 if (!band) 9525 goto nla_put_failure; 9526 if (disabled) { 9527 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9528 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9529 } 9530 nla_nest_end(msg, band); 9531 9532 nla_nest_end(msg, bands); 9533 9534 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9535 msg = NULL; 9536 if (ret) { 9537 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9538 "(%s)", ret, strerror(-ret)); 9539 } else 9540 drv->disabled_11b_rates = disabled; 9541 9542 return ret; 9543 9544nla_put_failure: 9545 nlmsg_free(msg); 9546 return -1; 9547} 9548 9549 9550static int wpa_driver_nl80211_deinit_ap(void *priv) 9551{ 9552 struct i802_bss *bss = priv; 9553 struct wpa_driver_nl80211_data *drv = bss->drv; 9554 if (!is_ap_interface(drv->nlmode)) 9555 return -1; 9556 wpa_driver_nl80211_del_beacon(drv); 9557 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9558} 9559 9560 9561static int wpa_driver_nl80211_stop_ap(void *priv) 9562{ 9563 struct i802_bss *bss = priv; 9564 struct wpa_driver_nl80211_data *drv = bss->drv; 9565 if (!is_ap_interface(drv->nlmode)) 9566 return -1; 9567 wpa_driver_nl80211_del_beacon(drv); 9568 bss->beacon_set = 0; 9569 return 0; 9570} 9571 9572 9573static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9574{ 9575 struct i802_bss *bss = priv; 9576 struct wpa_driver_nl80211_data *drv = bss->drv; 9577 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9578 return -1; 9579 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9580} 9581 9582 9583static void wpa_driver_nl80211_resume(void *priv) 9584{ 9585 struct i802_bss *bss = priv; 9586 9587 if (i802_set_iface_flags(bss, 1)) 9588 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9589} 9590 9591 9592static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9593 const u8 *ies, size_t ies_len) 9594{ 9595 struct i802_bss *bss = priv; 9596 struct wpa_driver_nl80211_data *drv = bss->drv; 9597 int ret; 9598 u8 *data, *pos; 9599 size_t data_len; 9600 const u8 *own_addr = bss->addr; 9601 9602 if (action != 1) { 9603 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9604 "action %d", action); 9605 return -1; 9606 } 9607 9608 /* 9609 * Action frame payload: 9610 * Category[1] = 6 (Fast BSS Transition) 9611 * Action[1] = 1 (Fast BSS Transition Request) 9612 * STA Address 9613 * Target AP Address 9614 * FT IEs 9615 */ 9616 9617 data_len = 2 + 2 * ETH_ALEN + ies_len; 9618 data = os_malloc(data_len); 9619 if (data == NULL) 9620 return -1; 9621 pos = data; 9622 *pos++ = 0x06; /* FT Action category */ 9623 *pos++ = action; 9624 os_memcpy(pos, own_addr, ETH_ALEN); 9625 pos += ETH_ALEN; 9626 os_memcpy(pos, target_ap, ETH_ALEN); 9627 pos += ETH_ALEN; 9628 os_memcpy(pos, ies, ies_len); 9629 9630 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9631 drv->bssid, own_addr, drv->bssid, 9632 data, data_len, 0); 9633 os_free(data); 9634 9635 return ret; 9636} 9637 9638 9639static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9640{ 9641 struct i802_bss *bss = priv; 9642 struct wpa_driver_nl80211_data *drv = bss->drv; 9643 struct nl_msg *msg; 9644 struct nlattr *cqm; 9645 int ret = -1; 9646 9647 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9648 "hysteresis=%d", threshold, hysteresis); 9649 9650 msg = nlmsg_alloc(); 9651 if (!msg) 9652 return -1; 9653 9654 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9655 9656 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9657 9658 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9659 if (cqm == NULL) 9660 goto nla_put_failure; 9661 9662 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9663 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9664 nla_nest_end(msg, cqm); 9665 9666 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9667 msg = NULL; 9668 9669nla_put_failure: 9670 nlmsg_free(msg); 9671 return ret; 9672} 9673 9674 9675/* Converts nl80211_chan_width to a common format */ 9676static enum chan_width convert2width(int width) 9677{ 9678 switch (width) { 9679 case NL80211_CHAN_WIDTH_20_NOHT: 9680 return CHAN_WIDTH_20_NOHT; 9681 case NL80211_CHAN_WIDTH_20: 9682 return CHAN_WIDTH_20; 9683 case NL80211_CHAN_WIDTH_40: 9684 return CHAN_WIDTH_40; 9685 case NL80211_CHAN_WIDTH_80: 9686 return CHAN_WIDTH_80; 9687 case NL80211_CHAN_WIDTH_80P80: 9688 return CHAN_WIDTH_80P80; 9689 case NL80211_CHAN_WIDTH_160: 9690 return CHAN_WIDTH_160; 9691 } 9692 return CHAN_WIDTH_UNKNOWN; 9693} 9694 9695 9696static int get_channel_width(struct nl_msg *msg, void *arg) 9697{ 9698 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9699 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9700 struct wpa_signal_info *sig_change = arg; 9701 9702 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9703 genlmsg_attrlen(gnlh, 0), NULL); 9704 9705 sig_change->center_frq1 = -1; 9706 sig_change->center_frq2 = -1; 9707 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9708 9709 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9710 sig_change->chanwidth = convert2width( 9711 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9712 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9713 sig_change->center_frq1 = 9714 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9715 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9716 sig_change->center_frq2 = 9717 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9718 } 9719 9720 return NL_SKIP; 9721} 9722 9723 9724static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9725 struct wpa_signal_info *sig) 9726{ 9727 struct nl_msg *msg; 9728 9729 msg = nlmsg_alloc(); 9730 if (!msg) 9731 return -ENOMEM; 9732 9733 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9734 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9735 9736 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9737 9738nla_put_failure: 9739 nlmsg_free(msg); 9740 return -ENOBUFS; 9741} 9742 9743 9744static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9745{ 9746 struct i802_bss *bss = priv; 9747 struct wpa_driver_nl80211_data *drv = bss->drv; 9748 int res; 9749 9750 os_memset(si, 0, sizeof(*si)); 9751 res = nl80211_get_link_signal(drv, si); 9752 if (res != 0) 9753 return res; 9754 9755 res = nl80211_get_channel_width(drv, si); 9756 if (res != 0) 9757 return res; 9758 9759 return nl80211_get_link_noise(drv, si); 9760} 9761 9762 9763static int wpa_driver_nl80211_shared_freq(void *priv) 9764{ 9765 struct i802_bss *bss = priv; 9766 struct wpa_driver_nl80211_data *drv = bss->drv; 9767 struct wpa_driver_nl80211_data *driver; 9768 int freq = 0; 9769 9770 /* 9771 * If the same PHY is in connected state with some other interface, 9772 * then retrieve the assoc freq. 9773 */ 9774 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9775 drv->phyname); 9776 9777 dl_list_for_each(driver, &drv->global->interfaces, 9778 struct wpa_driver_nl80211_data, list) { 9779 if (drv == driver || 9780 os_strcmp(drv->phyname, driver->phyname) != 0 || 9781#ifdef ANDROID_P2P 9782 (!driver->associated && !is_ap_interface(driver->nlmode))) 9783#else 9784 !driver->associated) 9785#endif 9786 continue; 9787 9788 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9789 MACSTR, 9790 driver->phyname, driver->first_bss.ifname, 9791 MAC2STR(driver->first_bss.addr)); 9792 if (is_ap_interface(driver->nlmode)) 9793 freq = driver->first_bss.freq; 9794 else 9795 freq = nl80211_get_assoc_freq(driver); 9796 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9797 drv->phyname, freq); 9798 } 9799 9800 if (!freq) 9801 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9802 "PHY (%s) in associated state", drv->phyname); 9803 9804 return freq; 9805} 9806 9807 9808static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9809 int encrypt) 9810{ 9811 struct i802_bss *bss = priv; 9812 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9813 0, 0, 0, 0); 9814} 9815 9816 9817static int nl80211_set_param(void *priv, const char *param) 9818{ 9819 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9820 if (param == NULL) 9821 return 0; 9822 9823#ifdef CONFIG_P2P 9824 if (os_strstr(param, "use_p2p_group_interface=1")) { 9825 struct i802_bss *bss = priv; 9826 struct wpa_driver_nl80211_data *drv = bss->drv; 9827 9828 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9829 "interface"); 9830 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9831 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9832 } 9833 9834 if (os_strstr(param, "p2p_device=1")) { 9835 struct i802_bss *bss = priv; 9836 struct wpa_driver_nl80211_data *drv = bss->drv; 9837 drv->allow_p2p_device = 1; 9838 } 9839 9840#ifdef ANDROID_P2P 9841 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9842 struct i802_bss *bss = priv; 9843 struct wpa_driver_nl80211_data *drv = bss->drv; 9844 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9845 "concurrency"); 9846 drv->capa.num_multichan_concurrent = 2; 9847 } 9848#endif 9849#endif /* CONFIG_P2P */ 9850 9851 return 0; 9852} 9853 9854 9855static void * nl80211_global_init(void) 9856{ 9857 struct nl80211_global *global; 9858 struct netlink_config *cfg; 9859 9860 global = os_zalloc(sizeof(*global)); 9861 if (global == NULL) 9862 return NULL; 9863 global->ioctl_sock = -1; 9864 dl_list_init(&global->interfaces); 9865 global->if_add_ifindex = -1; 9866 9867 cfg = os_zalloc(sizeof(*cfg)); 9868 if (cfg == NULL) 9869 goto err; 9870 9871 cfg->ctx = global; 9872 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9873 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9874 global->netlink = netlink_init(cfg); 9875 if (global->netlink == NULL) { 9876 os_free(cfg); 9877 goto err; 9878 } 9879 9880 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9881 goto err; 9882 9883 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9884 if (global->ioctl_sock < 0) { 9885 perror("socket(PF_INET,SOCK_DGRAM)"); 9886 goto err; 9887 } 9888 9889 return global; 9890 9891err: 9892 nl80211_global_deinit(global); 9893 return NULL; 9894} 9895 9896 9897static void nl80211_global_deinit(void *priv) 9898{ 9899 struct nl80211_global *global = priv; 9900 if (global == NULL) 9901 return; 9902 if (!dl_list_empty(&global->interfaces)) { 9903 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9904 "nl80211_global_deinit", 9905 dl_list_len(&global->interfaces)); 9906 } 9907 9908 if (global->netlink) 9909 netlink_deinit(global->netlink); 9910 9911 nl_destroy_handles(&global->nl); 9912 9913 if (global->nl_event) { 9914 eloop_unregister_read_sock( 9915 nl_socket_get_fd(global->nl_event)); 9916 nl_destroy_handles(&global->nl_event); 9917 } 9918 9919 nl_cb_put(global->nl_cb); 9920 9921 if (global->ioctl_sock >= 0) 9922 close(global->ioctl_sock); 9923 9924 os_free(global); 9925} 9926 9927 9928static const char * nl80211_get_radio_name(void *priv) 9929{ 9930 struct i802_bss *bss = priv; 9931 struct wpa_driver_nl80211_data *drv = bss->drv; 9932 return drv->phyname; 9933} 9934 9935 9936static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9937 const u8 *pmkid) 9938{ 9939 struct nl_msg *msg; 9940 9941 msg = nlmsg_alloc(); 9942 if (!msg) 9943 return -ENOMEM; 9944 9945 nl80211_cmd(bss->drv, msg, 0, cmd); 9946 9947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9948 if (pmkid) 9949 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9950 if (bssid) 9951 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9952 9953 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9954 nla_put_failure: 9955 nlmsg_free(msg); 9956 return -ENOBUFS; 9957} 9958 9959 9960static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9961{ 9962 struct i802_bss *bss = priv; 9963 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9964 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9965} 9966 9967 9968static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9969{ 9970 struct i802_bss *bss = priv; 9971 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9972 MAC2STR(bssid)); 9973 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9974} 9975 9976 9977static int nl80211_flush_pmkid(void *priv) 9978{ 9979 struct i802_bss *bss = priv; 9980 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9981 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9982} 9983 9984 9985static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9986 const u8 *replay_ctr) 9987{ 9988 struct i802_bss *bss = priv; 9989 struct wpa_driver_nl80211_data *drv = bss->drv; 9990 struct nlattr *replay_nested; 9991 struct nl_msg *msg; 9992 9993 msg = nlmsg_alloc(); 9994 if (!msg) 9995 return; 9996 9997 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 9998 9999 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10000 10001 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10002 if (!replay_nested) 10003 goto nla_put_failure; 10004 10005 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10006 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10007 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10008 replay_ctr); 10009 10010 nla_nest_end(msg, replay_nested); 10011 10012 send_and_recv_msgs(drv, msg, NULL, NULL); 10013 return; 10014 nla_put_failure: 10015 nlmsg_free(msg); 10016} 10017 10018 10019static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10020 const u8 *addr, int qos) 10021{ 10022 /* send data frame to poll STA and check whether 10023 * this frame is ACKed */ 10024 struct { 10025 struct ieee80211_hdr hdr; 10026 u16 qos_ctl; 10027 } STRUCT_PACKED nulldata; 10028 size_t size; 10029 10030 /* Send data frame to poll STA and check whether this frame is ACKed */ 10031 10032 os_memset(&nulldata, 0, sizeof(nulldata)); 10033 10034 if (qos) { 10035 nulldata.hdr.frame_control = 10036 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10037 WLAN_FC_STYPE_QOS_NULL); 10038 size = sizeof(nulldata); 10039 } else { 10040 nulldata.hdr.frame_control = 10041 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10042 WLAN_FC_STYPE_NULLFUNC); 10043 size = sizeof(struct ieee80211_hdr); 10044 } 10045 10046 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10047 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10048 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10049 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10050 10051 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10052 0, 0) < 0) 10053 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10054 "send poll frame"); 10055} 10056 10057static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10058 int qos) 10059{ 10060 struct i802_bss *bss = priv; 10061 struct wpa_driver_nl80211_data *drv = bss->drv; 10062 struct nl_msg *msg; 10063 10064 if (!drv->poll_command_supported) { 10065 nl80211_send_null_frame(bss, own_addr, addr, qos); 10066 return; 10067 } 10068 10069 msg = nlmsg_alloc(); 10070 if (!msg) 10071 return; 10072 10073 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10074 10075 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10076 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10077 10078 send_and_recv_msgs(drv, msg, NULL, NULL); 10079 return; 10080 nla_put_failure: 10081 nlmsg_free(msg); 10082} 10083 10084 10085static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10086{ 10087 struct nl_msg *msg; 10088 10089 msg = nlmsg_alloc(); 10090 if (!msg) 10091 return -ENOMEM; 10092 10093 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10094 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10095 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10096 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10097 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10098nla_put_failure: 10099 nlmsg_free(msg); 10100 return -ENOBUFS; 10101} 10102 10103 10104static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10105 int ctwindow) 10106{ 10107 struct i802_bss *bss = priv; 10108 10109 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10110 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10111 10112 if (opp_ps != -1 || ctwindow != -1) 10113#ifdef ANDROID_P2P 10114 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10115#else 10116 return -1; /* Not yet supported */ 10117#endif 10118 10119 if (legacy_ps == -1) 10120 return 0; 10121 if (legacy_ps != 0 && legacy_ps != 1) 10122 return -1; /* Not yet supported */ 10123 10124 return nl80211_set_power_save(bss, legacy_ps); 10125} 10126 10127 10128static int nl80211_start_radar_detection(void *priv, int freq) 10129{ 10130 struct i802_bss *bss = priv; 10131 struct wpa_driver_nl80211_data *drv = bss->drv; 10132 struct nl_msg *msg; 10133 int ret; 10134 10135 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 10136 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10137 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10138 "detection"); 10139 return -1; 10140 } 10141 10142 msg = nlmsg_alloc(); 10143 if (!msg) 10144 return -1; 10145 10146 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10147 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10148 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10149 10150 /* only HT20 is supported at this point */ 10151 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 10152 10153 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10154 if (ret == 0) 10155 return 0; 10156 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10157 "%d (%s)", ret, strerror(-ret)); 10158nla_put_failure: 10159 return -1; 10160} 10161 10162#ifdef CONFIG_TDLS 10163 10164static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10165 u8 dialog_token, u16 status_code, 10166 const u8 *buf, size_t len) 10167{ 10168 struct i802_bss *bss = priv; 10169 struct wpa_driver_nl80211_data *drv = bss->drv; 10170 struct nl_msg *msg; 10171 10172 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10173 return -EOPNOTSUPP; 10174 10175 if (!dst) 10176 return -EINVAL; 10177 10178 msg = nlmsg_alloc(); 10179 if (!msg) 10180 return -ENOMEM; 10181 10182 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10183 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10184 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10185 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10186 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10187 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10188 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10189 10190 return send_and_recv_msgs(drv, msg, NULL, NULL); 10191 10192nla_put_failure: 10193 nlmsg_free(msg); 10194 return -ENOBUFS; 10195} 10196 10197 10198static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10199{ 10200 struct i802_bss *bss = priv; 10201 struct wpa_driver_nl80211_data *drv = bss->drv; 10202 struct nl_msg *msg; 10203 enum nl80211_tdls_operation nl80211_oper; 10204 10205 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10206 return -EOPNOTSUPP; 10207 10208 switch (oper) { 10209 case TDLS_DISCOVERY_REQ: 10210 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10211 break; 10212 case TDLS_SETUP: 10213 nl80211_oper = NL80211_TDLS_SETUP; 10214 break; 10215 case TDLS_TEARDOWN: 10216 nl80211_oper = NL80211_TDLS_TEARDOWN; 10217 break; 10218 case TDLS_ENABLE_LINK: 10219 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10220 break; 10221 case TDLS_DISABLE_LINK: 10222 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10223 break; 10224 case TDLS_ENABLE: 10225 return 0; 10226 case TDLS_DISABLE: 10227 return 0; 10228 default: 10229 return -EINVAL; 10230 } 10231 10232 msg = nlmsg_alloc(); 10233 if (!msg) 10234 return -ENOMEM; 10235 10236 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10237 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10238 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10239 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10240 10241 return send_and_recv_msgs(drv, msg, NULL, NULL); 10242 10243nla_put_failure: 10244 nlmsg_free(msg); 10245 return -ENOBUFS; 10246} 10247 10248#endif /* CONFIG TDLS */ 10249 10250 10251#ifdef ANDROID 10252 10253typedef struct android_wifi_priv_cmd { 10254 char *buf; 10255 int used_len; 10256 int total_len; 10257} android_wifi_priv_cmd; 10258 10259static int drv_errors = 0; 10260 10261static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10262{ 10263 drv_errors++; 10264 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10265 drv_errors = 0; 10266 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10267 } 10268} 10269 10270 10271static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10272{ 10273 struct wpa_driver_nl80211_data *drv = bss->drv; 10274 struct ifreq ifr; 10275 android_wifi_priv_cmd priv_cmd; 10276 char buf[MAX_DRV_CMD_SIZE]; 10277 int ret; 10278 10279 os_memset(&ifr, 0, sizeof(ifr)); 10280 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10281 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10282 10283 os_memset(buf, 0, sizeof(buf)); 10284 os_strlcpy(buf, cmd, sizeof(buf)); 10285 10286 priv_cmd.buf = buf; 10287 priv_cmd.used_len = sizeof(buf); 10288 priv_cmd.total_len = sizeof(buf); 10289 ifr.ifr_data = &priv_cmd; 10290 10291 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10292 if (ret < 0) { 10293 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10294 __func__); 10295 wpa_driver_send_hang_msg(drv); 10296 return ret; 10297 } 10298 10299 drv_errors = 0; 10300 return 0; 10301} 10302 10303 10304static int android_pno_start(struct i802_bss *bss, 10305 struct wpa_driver_scan_params *params) 10306{ 10307 struct wpa_driver_nl80211_data *drv = bss->drv; 10308 struct ifreq ifr; 10309 android_wifi_priv_cmd priv_cmd; 10310 int ret = 0, i = 0, bp; 10311 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10312 10313 bp = WEXT_PNOSETUP_HEADER_SIZE; 10314 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10315 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10316 buf[bp++] = WEXT_PNO_TLV_VERSION; 10317 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10318 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10319 10320 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10321 /* Check that there is enough space needed for 1 more SSID, the 10322 * other sections and null termination */ 10323 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10324 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10325 break; 10326 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10327 params->ssids[i].ssid, 10328 params->ssids[i].ssid_len); 10329 buf[bp++] = WEXT_PNO_SSID_SECTION; 10330 buf[bp++] = params->ssids[i].ssid_len; 10331 os_memcpy(&buf[bp], params->ssids[i].ssid, 10332 params->ssids[i].ssid_len); 10333 bp += params->ssids[i].ssid_len; 10334 i++; 10335 } 10336 10337 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10338 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10339 WEXT_PNO_SCAN_INTERVAL); 10340 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10341 10342 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10343 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10344 WEXT_PNO_REPEAT); 10345 bp += WEXT_PNO_REPEAT_LENGTH; 10346 10347 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10348 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10349 WEXT_PNO_MAX_REPEAT); 10350 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10351 10352 memset(&ifr, 0, sizeof(ifr)); 10353 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10354 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10355 10356 priv_cmd.buf = buf; 10357 priv_cmd.used_len = bp; 10358 priv_cmd.total_len = bp; 10359 ifr.ifr_data = &priv_cmd; 10360 10361 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10362 10363 if (ret < 0) { 10364 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10365 ret); 10366 wpa_driver_send_hang_msg(drv); 10367 return ret; 10368 } 10369 10370 drv_errors = 0; 10371 10372 return android_priv_cmd(bss, "PNOFORCE 1"); 10373} 10374 10375 10376static int android_pno_stop(struct i802_bss *bss) 10377{ 10378 return android_priv_cmd(bss, "PNOFORCE 0"); 10379} 10380 10381#endif /* ANDROID */ 10382 10383 10384static int driver_nl80211_set_key(const char *ifname, void *priv, 10385 enum wpa_alg alg, const u8 *addr, 10386 int key_idx, int set_tx, 10387 const u8 *seq, size_t seq_len, 10388 const u8 *key, size_t key_len) 10389{ 10390 struct i802_bss *bss = priv; 10391 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10392 set_tx, seq, seq_len, key, key_len); 10393} 10394 10395 10396static int driver_nl80211_scan2(void *priv, 10397 struct wpa_driver_scan_params *params) 10398{ 10399 struct i802_bss *bss = priv; 10400 return wpa_driver_nl80211_scan(bss, params); 10401} 10402 10403 10404static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10405 int reason_code) 10406{ 10407 struct i802_bss *bss = priv; 10408 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10409} 10410 10411 10412static int driver_nl80211_authenticate(void *priv, 10413 struct wpa_driver_auth_params *params) 10414{ 10415 struct i802_bss *bss = priv; 10416 return wpa_driver_nl80211_authenticate(bss, params); 10417} 10418 10419 10420static void driver_nl80211_deinit(void *priv) 10421{ 10422 struct i802_bss *bss = priv; 10423 wpa_driver_nl80211_deinit(bss); 10424} 10425 10426 10427static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10428 const char *ifname) 10429{ 10430 struct i802_bss *bss = priv; 10431 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10432} 10433 10434 10435static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10436 size_t data_len, int noack) 10437{ 10438 struct i802_bss *bss = priv; 10439 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10440 0, 0, 0, 0); 10441} 10442 10443 10444static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10445{ 10446 struct i802_bss *bss = priv; 10447 return wpa_driver_nl80211_sta_remove(bss, addr); 10448} 10449 10450 10451#if defined(HOSTAPD) || defined(CONFIG_AP) 10452static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10453 const char *ifname, int vlan_id) 10454{ 10455 struct i802_bss *bss = priv; 10456 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10457} 10458#endif /* HOSTAPD || CONFIG_AP */ 10459 10460 10461static int driver_nl80211_read_sta_data(void *priv, 10462 struct hostap_sta_driver_data *data, 10463 const u8 *addr) 10464{ 10465 struct i802_bss *bss = priv; 10466 return i802_read_sta_data(bss, data, addr); 10467} 10468 10469 10470static int driver_nl80211_send_action(void *priv, unsigned int freq, 10471 unsigned int wait_time, 10472 const u8 *dst, const u8 *src, 10473 const u8 *bssid, 10474 const u8 *data, size_t data_len, 10475 int no_cck) 10476{ 10477 struct i802_bss *bss = priv; 10478 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10479 bssid, data, data_len, no_cck); 10480} 10481 10482 10483static int driver_nl80211_probe_req_report(void *priv, int report) 10484{ 10485 struct i802_bss *bss = priv; 10486 return wpa_driver_nl80211_probe_req_report(bss, report); 10487} 10488 10489 10490static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10491 const u8 *ies, size_t ies_len) 10492{ 10493 int ret; 10494 struct nl_msg *msg; 10495 struct i802_bss *bss = priv; 10496 struct wpa_driver_nl80211_data *drv = bss->drv; 10497 u16 mdid = WPA_GET_LE16(md); 10498 10499 msg = nlmsg_alloc(); 10500 if (!msg) 10501 return -ENOMEM; 10502 10503 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10504 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10505 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10506 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10507 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10508 10509 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10510 if (ret) { 10511 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10512 "err=%d (%s)", ret, strerror(-ret)); 10513 } 10514 10515 return ret; 10516 10517nla_put_failure: 10518 nlmsg_free(msg); 10519 return -ENOBUFS; 10520} 10521 10522 10523const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10524{ 10525 struct i802_bss *bss = priv; 10526 struct wpa_driver_nl80211_data *drv = bss->drv; 10527 10528 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10529 return NULL; 10530 10531 return bss->addr; 10532} 10533 10534 10535const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10536 .name = "nl80211", 10537 .desc = "Linux nl80211/cfg80211", 10538 .get_bssid = wpa_driver_nl80211_get_bssid, 10539 .get_ssid = wpa_driver_nl80211_get_ssid, 10540 .set_key = driver_nl80211_set_key, 10541 .scan2 = driver_nl80211_scan2, 10542 .sched_scan = wpa_driver_nl80211_sched_scan, 10543 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10544 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10545 .deauthenticate = driver_nl80211_deauthenticate, 10546 .authenticate = driver_nl80211_authenticate, 10547 .associate = wpa_driver_nl80211_associate, 10548 .global_init = nl80211_global_init, 10549 .global_deinit = nl80211_global_deinit, 10550 .init2 = wpa_driver_nl80211_init, 10551 .deinit = driver_nl80211_deinit, 10552 .get_capa = wpa_driver_nl80211_get_capa, 10553 .set_operstate = wpa_driver_nl80211_set_operstate, 10554 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10555 .set_country = wpa_driver_nl80211_set_country, 10556 .set_ap = wpa_driver_nl80211_set_ap, 10557 .set_acl = wpa_driver_nl80211_set_acl, 10558 .if_add = wpa_driver_nl80211_if_add, 10559 .if_remove = driver_nl80211_if_remove, 10560 .send_mlme = driver_nl80211_send_mlme, 10561 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10562 .sta_add = wpa_driver_nl80211_sta_add, 10563 .sta_remove = driver_nl80211_sta_remove, 10564 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10565 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10566#ifdef HOSTAPD 10567 .hapd_init = i802_init, 10568 .hapd_deinit = i802_deinit, 10569 .set_wds_sta = i802_set_wds_sta, 10570#endif /* HOSTAPD */ 10571#if defined(HOSTAPD) || defined(CONFIG_AP) 10572 .get_seqnum = i802_get_seqnum, 10573 .flush = i802_flush, 10574 .get_inact_sec = i802_get_inact_sec, 10575 .sta_clear_stats = i802_sta_clear_stats, 10576 .set_rts = i802_set_rts, 10577 .set_frag = i802_set_frag, 10578 .set_tx_queue_params = i802_set_tx_queue_params, 10579 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10580 .sta_deauth = i802_sta_deauth, 10581 .sta_disassoc = i802_sta_disassoc, 10582#endif /* HOSTAPD || CONFIG_AP */ 10583 .read_sta_data = driver_nl80211_read_sta_data, 10584 .set_freq = i802_set_freq, 10585 .send_action = driver_nl80211_send_action, 10586 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 10587 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 10588 .cancel_remain_on_channel = 10589 wpa_driver_nl80211_cancel_remain_on_channel, 10590 .probe_req_report = driver_nl80211_probe_req_report, 10591 .deinit_ap = wpa_driver_nl80211_deinit_ap, 10592 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 10593 .resume = wpa_driver_nl80211_resume, 10594 .send_ft_action = nl80211_send_ft_action, 10595 .signal_monitor = nl80211_signal_monitor, 10596 .signal_poll = nl80211_signal_poll, 10597 .send_frame = nl80211_send_frame, 10598 .shared_freq = wpa_driver_nl80211_shared_freq, 10599 .set_param = nl80211_set_param, 10600 .get_radio_name = nl80211_get_radio_name, 10601 .add_pmkid = nl80211_add_pmkid, 10602 .remove_pmkid = nl80211_remove_pmkid, 10603 .flush_pmkid = nl80211_flush_pmkid, 10604 .set_rekey_info = nl80211_set_rekey_info, 10605 .poll_client = nl80211_poll_client, 10606 .set_p2p_powersave = nl80211_set_p2p_powersave, 10607 .start_dfs_cac = nl80211_start_radar_detection, 10608 .stop_ap = wpa_driver_nl80211_stop_ap, 10609#ifdef CONFIG_TDLS 10610 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 10611 .tdls_oper = nl80211_tdls_oper, 10612#endif /* CONFIG_TDLS */ 10613 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 10614 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 10615#ifdef ANDROID_P2P 10616 .set_noa = wpa_driver_set_p2p_noa, 10617 .get_noa = wpa_driver_get_p2p_noa, 10618 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 10619#endif 10620#ifdef ANDROID 10621 .driver_cmd = wpa_driver_nl80211_driver_cmd, 10622#endif 10623}; 10624