driver_nl80211.c revision d5c075b0c218277d0f926daf1f9eff974b9656dc
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 int tdls = 0; 4897 4898 /* Ignore for P2P Device */ 4899 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4900 return 0; 4901 4902 ifindex = if_nametoindex(ifname); 4903 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4904 "set_tx=%d seq_len=%lu key_len=%lu", 4905 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4906 (unsigned long) seq_len, (unsigned long) key_len); 4907#ifdef CONFIG_TDLS 4908 if (key_idx == -1) { 4909 key_idx = 0; 4910 tdls = 1; 4911 } 4912#endif /* CONFIG_TDLS */ 4913 4914 msg = nlmsg_alloc(); 4915 if (!msg) 4916 return -ENOMEM; 4917 4918 if (alg == WPA_ALG_NONE) { 4919 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4920 } else { 4921 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4922 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4923 switch (alg) { 4924 case WPA_ALG_WEP: 4925 if (key_len == 5) 4926 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4927 WLAN_CIPHER_SUITE_WEP40); 4928 else 4929 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4930 WLAN_CIPHER_SUITE_WEP104); 4931 break; 4932 case WPA_ALG_TKIP: 4933 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4934 WLAN_CIPHER_SUITE_TKIP); 4935 break; 4936 case WPA_ALG_CCMP: 4937 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4938 WLAN_CIPHER_SUITE_CCMP); 4939 break; 4940 case WPA_ALG_GCMP: 4941 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4942 WLAN_CIPHER_SUITE_GCMP); 4943 break; 4944 case WPA_ALG_IGTK: 4945 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4946 WLAN_CIPHER_SUITE_AES_CMAC); 4947 break; 4948 case WPA_ALG_SMS4: 4949 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4950 WLAN_CIPHER_SUITE_SMS4); 4951 break; 4952 case WPA_ALG_KRK: 4953 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4954 WLAN_CIPHER_SUITE_KRK); 4955 break; 4956 default: 4957 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4958 "algorithm %d", __func__, alg); 4959 nlmsg_free(msg); 4960 return -1; 4961 } 4962 } 4963 4964 if (seq && seq_len) 4965 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4966 4967 if (addr && !is_broadcast_ether_addr(addr)) { 4968 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4969 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4970 4971 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4972 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4973 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4974 NL80211_KEYTYPE_GROUP); 4975 } 4976 } else if (addr && is_broadcast_ether_addr(addr)) { 4977 struct nlattr *types; 4978 4979 wpa_printf(MSG_DEBUG, " broadcast key"); 4980 4981 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4982 if (!types) 4983 goto nla_put_failure; 4984 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4985 nla_nest_end(msg, types); 4986 } 4987 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4988 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4989 4990 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4991 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4992 ret = 0; 4993 if (ret) 4994 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4995 ret, strerror(-ret)); 4996 4997 /* 4998 * If we failed or don't need to set the default TX key (below), 4999 * we're done here. 5000 */ 5001 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5002 return ret; 5003 if (is_ap_interface(drv->nlmode) && addr && 5004 !is_broadcast_ether_addr(addr)) 5005 return ret; 5006 5007 msg = nlmsg_alloc(); 5008 if (!msg) 5009 return -ENOMEM; 5010 5011 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5012 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5013 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5014 if (alg == WPA_ALG_IGTK) 5015 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5016 else 5017 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5018 if (addr && is_broadcast_ether_addr(addr)) { 5019 struct nlattr *types; 5020 5021 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5022 if (!types) 5023 goto nla_put_failure; 5024 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5025 nla_nest_end(msg, types); 5026 } else if (addr) { 5027 struct nlattr *types; 5028 5029 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5030 if (!types) 5031 goto nla_put_failure; 5032 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5033 nla_nest_end(msg, types); 5034 } 5035 5036 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5037 if (ret == -ENOENT) 5038 ret = 0; 5039 if (ret) 5040 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5041 "err=%d %s)", ret, strerror(-ret)); 5042 return ret; 5043 5044nla_put_failure: 5045 nlmsg_free(msg); 5046 return -ENOBUFS; 5047} 5048 5049 5050static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5051 int key_idx, int defkey, 5052 const u8 *seq, size_t seq_len, 5053 const u8 *key, size_t key_len) 5054{ 5055 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5056 if (!key_attr) 5057 return -1; 5058 5059 if (defkey && alg == WPA_ALG_IGTK) 5060 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5061 else if (defkey) 5062 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5063 5064 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5065 5066 switch (alg) { 5067 case WPA_ALG_WEP: 5068 if (key_len == 5) 5069 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5070 WLAN_CIPHER_SUITE_WEP40); 5071 else 5072 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5073 WLAN_CIPHER_SUITE_WEP104); 5074 break; 5075 case WPA_ALG_TKIP: 5076 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5077 break; 5078 case WPA_ALG_CCMP: 5079 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5080 break; 5081 case WPA_ALG_GCMP: 5082 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5083 break; 5084 case WPA_ALG_IGTK: 5085 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5086 WLAN_CIPHER_SUITE_AES_CMAC); 5087 break; 5088 default: 5089 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5090 "algorithm %d", __func__, alg); 5091 return -1; 5092 } 5093 5094 if (seq && seq_len) 5095 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5096 5097 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5098 5099 nla_nest_end(msg, key_attr); 5100 5101 return 0; 5102 nla_put_failure: 5103 return -1; 5104} 5105 5106 5107static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5108 struct nl_msg *msg) 5109{ 5110 int i, privacy = 0; 5111 struct nlattr *nl_keys, *nl_key; 5112 5113 for (i = 0; i < 4; i++) { 5114 if (!params->wep_key[i]) 5115 continue; 5116 privacy = 1; 5117 break; 5118 } 5119 if (params->wps == WPS_MODE_PRIVACY) 5120 privacy = 1; 5121 if (params->pairwise_suite && 5122 params->pairwise_suite != WPA_CIPHER_NONE) 5123 privacy = 1; 5124 5125 if (!privacy) 5126 return 0; 5127 5128 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5129 5130 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5131 if (!nl_keys) 5132 goto nla_put_failure; 5133 5134 for (i = 0; i < 4; i++) { 5135 if (!params->wep_key[i]) 5136 continue; 5137 5138 nl_key = nla_nest_start(msg, i); 5139 if (!nl_key) 5140 goto nla_put_failure; 5141 5142 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5143 params->wep_key[i]); 5144 if (params->wep_key_len[i] == 5) 5145 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5146 WLAN_CIPHER_SUITE_WEP40); 5147 else 5148 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5149 WLAN_CIPHER_SUITE_WEP104); 5150 5151 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5152 5153 if (i == params->wep_tx_keyidx) 5154 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5155 5156 nla_nest_end(msg, nl_key); 5157 } 5158 nla_nest_end(msg, nl_keys); 5159 5160 return 0; 5161 5162nla_put_failure: 5163 return -ENOBUFS; 5164} 5165 5166 5167static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5168 const u8 *addr, int cmd, u16 reason_code, 5169 int local_state_change) 5170{ 5171 int ret = -1; 5172 struct nl_msg *msg; 5173 5174 msg = nlmsg_alloc(); 5175 if (!msg) 5176 return -1; 5177 5178 nl80211_cmd(drv, msg, 0, cmd); 5179 5180 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5181 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5182 if (addr) 5183 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5184 if (local_state_change) 5185 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5186 5187 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5188 msg = NULL; 5189 if (ret) { 5190 wpa_dbg(drv->ctx, MSG_DEBUG, 5191 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5192 reason_code, ret, strerror(-ret)); 5193 goto nla_put_failure; 5194 } 5195 ret = 0; 5196 5197nla_put_failure: 5198 nlmsg_free(msg); 5199 return ret; 5200} 5201 5202 5203static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5204 int reason_code) 5205{ 5206 int ret; 5207 5208 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5209 nl80211_mark_disconnected(drv); 5210 /* Disconnect command doesn't need BSSID - it uses cached value */ 5211 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5212 reason_code, 0); 5213 /* 5214 * For locally generated disconnect, supplicant already generates a 5215 * DEAUTH event, so ignore the event from NL80211. 5216 */ 5217 drv->ignore_next_local_disconnect = ret == 0; 5218 5219 return ret; 5220} 5221 5222 5223static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5224 const u8 *addr, int reason_code) 5225{ 5226 struct wpa_driver_nl80211_data *drv = bss->drv; 5227 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5228 return wpa_driver_nl80211_disconnect(drv, reason_code); 5229 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5230 __func__, MAC2STR(addr), reason_code); 5231 nl80211_mark_disconnected(drv); 5232 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5233 return nl80211_leave_ibss(drv); 5234 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5235 reason_code, 0); 5236} 5237 5238 5239static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5240 struct wpa_driver_auth_params *params) 5241{ 5242 int i; 5243 5244 drv->auth_freq = params->freq; 5245 drv->auth_alg = params->auth_alg; 5246 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5247 drv->auth_local_state_change = params->local_state_change; 5248 drv->auth_p2p = params->p2p; 5249 5250 if (params->bssid) 5251 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5252 else 5253 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5254 5255 if (params->ssid) { 5256 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5257 drv->auth_ssid_len = params->ssid_len; 5258 } else 5259 drv->auth_ssid_len = 0; 5260 5261 5262 os_free(drv->auth_ie); 5263 drv->auth_ie = NULL; 5264 drv->auth_ie_len = 0; 5265 if (params->ie) { 5266 drv->auth_ie = os_malloc(params->ie_len); 5267 if (drv->auth_ie) { 5268 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5269 drv->auth_ie_len = params->ie_len; 5270 } 5271 } 5272 5273 for (i = 0; i < 4; i++) { 5274 if (params->wep_key[i] && params->wep_key_len[i] && 5275 params->wep_key_len[i] <= 16) { 5276 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5277 params->wep_key_len[i]); 5278 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5279 } else 5280 drv->auth_wep_key_len[i] = 0; 5281 } 5282} 5283 5284 5285static int wpa_driver_nl80211_authenticate( 5286 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5287{ 5288 struct wpa_driver_nl80211_data *drv = bss->drv; 5289 int ret = -1, i; 5290 struct nl_msg *msg; 5291 enum nl80211_auth_type type; 5292 enum nl80211_iftype nlmode; 5293 int count = 0; 5294 int is_retry; 5295 5296 is_retry = drv->retry_auth; 5297 drv->retry_auth = 0; 5298 5299 nl80211_mark_disconnected(drv); 5300 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5301 if (params->bssid) 5302 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5303 else 5304 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5305 /* FIX: IBSS mode */ 5306 nlmode = params->p2p ? 5307 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5308 if (drv->nlmode != nlmode && 5309 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5310 return -1; 5311 5312retry: 5313 msg = nlmsg_alloc(); 5314 if (!msg) 5315 return -1; 5316 5317 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5318 drv->ifindex); 5319 5320 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5321 5322 for (i = 0; i < 4; i++) { 5323 if (!params->wep_key[i]) 5324 continue; 5325 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5326 NULL, i, 5327 i == params->wep_tx_keyidx, NULL, 0, 5328 params->wep_key[i], 5329 params->wep_key_len[i]); 5330 if (params->wep_tx_keyidx != i) 5331 continue; 5332 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5333 params->wep_key[i], params->wep_key_len[i])) { 5334 nlmsg_free(msg); 5335 return -1; 5336 } 5337 } 5338 5339 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5340 if (params->bssid) { 5341 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5342 MAC2STR(params->bssid)); 5343 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5344 } 5345 if (params->freq) { 5346 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5347 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5348 } 5349 if (params->ssid) { 5350 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5351 params->ssid, params->ssid_len); 5352 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5353 params->ssid); 5354 } 5355 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5356 if (params->ie) 5357 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5358 if (params->sae_data) { 5359 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5360 params->sae_data_len); 5361 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5362 params->sae_data); 5363 } 5364 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5365 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5366 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5367 type = NL80211_AUTHTYPE_SHARED_KEY; 5368 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5369 type = NL80211_AUTHTYPE_NETWORK_EAP; 5370 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5371 type = NL80211_AUTHTYPE_FT; 5372 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5373 type = NL80211_AUTHTYPE_SAE; 5374 else 5375 goto nla_put_failure; 5376 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5377 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5378 if (params->local_state_change) { 5379 wpa_printf(MSG_DEBUG, " * Local state change only"); 5380 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5381 } 5382 5383 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5384 msg = NULL; 5385 if (ret) { 5386 wpa_dbg(drv->ctx, MSG_DEBUG, 5387 "nl80211: MLME command failed (auth): ret=%d (%s)", 5388 ret, strerror(-ret)); 5389 count++; 5390 if (ret == -EALREADY && count == 1 && params->bssid && 5391 !params->local_state_change) { 5392 /* 5393 * mac80211 does not currently accept new 5394 * authentication if we are already authenticated. As a 5395 * workaround, force deauthentication and try again. 5396 */ 5397 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5398 "after forced deauthentication"); 5399 wpa_driver_nl80211_deauthenticate( 5400 bss, params->bssid, 5401 WLAN_REASON_PREV_AUTH_NOT_VALID); 5402 nlmsg_free(msg); 5403 goto retry; 5404 } 5405 5406 if (ret == -ENOENT && params->freq && !is_retry) { 5407 /* 5408 * cfg80211 has likely expired the BSS entry even 5409 * though it was previously available in our internal 5410 * BSS table. To recover quickly, start a single 5411 * channel scan on the specified channel. 5412 */ 5413 struct wpa_driver_scan_params scan; 5414 int freqs[2]; 5415 5416 os_memset(&scan, 0, sizeof(scan)); 5417 scan.num_ssids = 1; 5418 if (params->ssid) { 5419 scan.ssids[0].ssid = params->ssid; 5420 scan.ssids[0].ssid_len = params->ssid_len; 5421 } 5422 freqs[0] = params->freq; 5423 freqs[1] = 0; 5424 scan.freqs = freqs; 5425 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5426 "channel scan to refresh cfg80211 BSS " 5427 "entry"); 5428 ret = wpa_driver_nl80211_scan(bss, &scan); 5429 if (ret == 0) { 5430 nl80211_copy_auth_params(drv, params); 5431 drv->scan_for_auth = 1; 5432 } 5433 } else if (is_retry) { 5434 /* 5435 * Need to indicate this with an event since the return 5436 * value from the retry is not delivered to core code. 5437 */ 5438 union wpa_event_data event; 5439 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5440 "failed"); 5441 os_memset(&event, 0, sizeof(event)); 5442 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5443 ETH_ALEN); 5444 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5445 &event); 5446 } 5447 5448 goto nla_put_failure; 5449 } 5450 ret = 0; 5451 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5452 "successfully"); 5453 5454nla_put_failure: 5455 nlmsg_free(msg); 5456 return ret; 5457} 5458 5459 5460static int wpa_driver_nl80211_authenticate_retry( 5461 struct wpa_driver_nl80211_data *drv) 5462{ 5463 struct wpa_driver_auth_params params; 5464 struct i802_bss *bss = &drv->first_bss; 5465 int i; 5466 5467 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5468 5469 os_memset(¶ms, 0, sizeof(params)); 5470 params.freq = drv->auth_freq; 5471 params.auth_alg = drv->auth_alg; 5472 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5473 params.local_state_change = drv->auth_local_state_change; 5474 params.p2p = drv->auth_p2p; 5475 5476 if (!is_zero_ether_addr(drv->auth_bssid_)) 5477 params.bssid = drv->auth_bssid_; 5478 5479 if (drv->auth_ssid_len) { 5480 params.ssid = drv->auth_ssid; 5481 params.ssid_len = drv->auth_ssid_len; 5482 } 5483 5484 params.ie = drv->auth_ie; 5485 params.ie_len = drv->auth_ie_len; 5486 5487 for (i = 0; i < 4; i++) { 5488 if (drv->auth_wep_key_len[i]) { 5489 params.wep_key[i] = drv->auth_wep_key[i]; 5490 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5491 } 5492 } 5493 5494 drv->retry_auth = 1; 5495 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5496} 5497 5498 5499struct phy_info_arg { 5500 u16 *num_modes; 5501 struct hostapd_hw_modes *modes; 5502 int last_mode, last_chan_idx; 5503}; 5504 5505static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5506 struct nlattr *ampdu_factor, 5507 struct nlattr *ampdu_density, 5508 struct nlattr *mcs_set) 5509{ 5510 if (capa) 5511 mode->ht_capab = nla_get_u16(capa); 5512 5513 if (ampdu_factor) 5514 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5515 5516 if (ampdu_density) 5517 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5518 5519 if (mcs_set && nla_len(mcs_set) >= 16) { 5520 u8 *mcs; 5521 mcs = nla_data(mcs_set); 5522 os_memcpy(mode->mcs_set, mcs, 16); 5523 } 5524} 5525 5526 5527static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5528 struct nlattr *capa, 5529 struct nlattr *mcs_set) 5530{ 5531 if (capa) 5532 mode->vht_capab = nla_get_u32(capa); 5533 5534 if (mcs_set && nla_len(mcs_set) >= 8) { 5535 u8 *mcs; 5536 mcs = nla_data(mcs_set); 5537 os_memcpy(mode->vht_mcs_set, mcs, 8); 5538 } 5539} 5540 5541 5542static void phy_info_freq(struct hostapd_hw_modes *mode, 5543 struct hostapd_channel_data *chan, 5544 struct nlattr *tb_freq[]) 5545{ 5546 u8 channel; 5547 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5548 chan->flag = 0; 5549 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5550 chan->chan = channel; 5551 5552 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5553 chan->flag |= HOSTAPD_CHAN_DISABLED; 5554 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5555 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5556 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5557 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5558 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5559 chan->flag |= HOSTAPD_CHAN_RADAR; 5560 5561 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5562 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5563 chan->max_tx_power = nla_get_u32( 5564 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5565 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5566 enum nl80211_dfs_state state = 5567 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5568 5569 switch (state) { 5570 case NL80211_DFS_USABLE: 5571 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5572 break; 5573 case NL80211_DFS_AVAILABLE: 5574 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5575 break; 5576 case NL80211_DFS_UNAVAILABLE: 5577 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5578 break; 5579 } 5580 } 5581} 5582 5583 5584static int phy_info_freqs(struct phy_info_arg *phy_info, 5585 struct hostapd_hw_modes *mode, struct nlattr *tb) 5586{ 5587 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5588 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5589 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5590 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5591 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5592 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5593 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5594 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5595 }; 5596 int new_channels = 0; 5597 struct hostapd_channel_data *channel; 5598 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5599 struct nlattr *nl_freq; 5600 int rem_freq, idx; 5601 5602 if (tb == NULL) 5603 return NL_OK; 5604 5605 nla_for_each_nested(nl_freq, tb, rem_freq) { 5606 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5607 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5608 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5609 continue; 5610 new_channels++; 5611 } 5612 5613 channel = os_realloc_array(mode->channels, 5614 mode->num_channels + new_channels, 5615 sizeof(struct hostapd_channel_data)); 5616 if (!channel) 5617 return NL_SKIP; 5618 5619 mode->channels = channel; 5620 mode->num_channels += new_channels; 5621 5622 idx = phy_info->last_chan_idx; 5623 5624 nla_for_each_nested(nl_freq, tb, rem_freq) { 5625 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5626 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5627 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5628 continue; 5629 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5630 idx++; 5631 } 5632 phy_info->last_chan_idx = idx; 5633 5634 return NL_OK; 5635} 5636 5637 5638static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5639{ 5640 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5641 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5642 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5643 { .type = NLA_FLAG }, 5644 }; 5645 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5646 struct nlattr *nl_rate; 5647 int rem_rate, idx; 5648 5649 if (tb == NULL) 5650 return NL_OK; 5651 5652 nla_for_each_nested(nl_rate, tb, rem_rate) { 5653 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5654 nla_data(nl_rate), nla_len(nl_rate), 5655 rate_policy); 5656 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5657 continue; 5658 mode->num_rates++; 5659 } 5660 5661 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5662 if (!mode->rates) 5663 return NL_SKIP; 5664 5665 idx = 0; 5666 5667 nla_for_each_nested(nl_rate, tb, rem_rate) { 5668 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5669 nla_data(nl_rate), nla_len(nl_rate), 5670 rate_policy); 5671 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5672 continue; 5673 mode->rates[idx] = nla_get_u32( 5674 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5675 idx++; 5676 } 5677 5678 return NL_OK; 5679} 5680 5681 5682static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5683{ 5684 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5685 struct hostapd_hw_modes *mode; 5686 int ret; 5687 5688 if (phy_info->last_mode != nl_band->nla_type) { 5689 mode = os_realloc_array(phy_info->modes, 5690 *phy_info->num_modes + 1, 5691 sizeof(*mode)); 5692 if (!mode) 5693 return NL_SKIP; 5694 phy_info->modes = mode; 5695 5696 mode = &phy_info->modes[*(phy_info->num_modes)]; 5697 os_memset(mode, 0, sizeof(*mode)); 5698 mode->mode = NUM_HOSTAPD_MODES; 5699 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5700 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5701 5702 /* 5703 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5704 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5705 * possible streams as unsupported. This will be overridden if 5706 * driver advertises VHT support. 5707 */ 5708 mode->vht_mcs_set[0] = 0xff; 5709 mode->vht_mcs_set[1] = 0xff; 5710 mode->vht_mcs_set[4] = 0xff; 5711 mode->vht_mcs_set[5] = 0xff; 5712 5713 *(phy_info->num_modes) += 1; 5714 phy_info->last_mode = nl_band->nla_type; 5715 phy_info->last_chan_idx = 0; 5716 } else 5717 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5718 5719 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5720 nla_len(nl_band), NULL); 5721 5722 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5723 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5724 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5725 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5726 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5727 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5728 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5729 if (ret != NL_OK) 5730 return ret; 5731 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5732 if (ret != NL_OK) 5733 return ret; 5734 5735 return NL_OK; 5736} 5737 5738 5739static int phy_info_handler(struct nl_msg *msg, void *arg) 5740{ 5741 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5742 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5743 struct phy_info_arg *phy_info = arg; 5744 struct nlattr *nl_band; 5745 int rem_band; 5746 5747 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5748 genlmsg_attrlen(gnlh, 0), NULL); 5749 5750 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5751 return NL_SKIP; 5752 5753 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5754 { 5755 int res = phy_info_band(phy_info, nl_band); 5756 if (res != NL_OK) 5757 return res; 5758 } 5759 5760 return NL_SKIP; 5761} 5762 5763 5764static struct hostapd_hw_modes * 5765wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5766 u16 *num_modes) 5767{ 5768 u16 m; 5769 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5770 int i, mode11g_idx = -1; 5771 5772 /* heuristic to set up modes */ 5773 for (m = 0; m < *num_modes; m++) { 5774 if (!modes[m].num_channels) 5775 continue; 5776 if (modes[m].channels[0].freq < 4000) { 5777 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5778 for (i = 0; i < modes[m].num_rates; i++) { 5779 if (modes[m].rates[i] > 200) { 5780 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5781 break; 5782 } 5783 } 5784 } else if (modes[m].channels[0].freq > 50000) 5785 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5786 else 5787 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5788 } 5789 5790 /* If only 802.11g mode is included, use it to construct matching 5791 * 802.11b mode data. */ 5792 5793 for (m = 0; m < *num_modes; m++) { 5794 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5795 return modes; /* 802.11b already included */ 5796 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5797 mode11g_idx = m; 5798 } 5799 5800 if (mode11g_idx < 0) 5801 return modes; /* 2.4 GHz band not supported at all */ 5802 5803 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5804 if (nmodes == NULL) 5805 return modes; /* Could not add 802.11b mode */ 5806 5807 mode = &nmodes[*num_modes]; 5808 os_memset(mode, 0, sizeof(*mode)); 5809 (*num_modes)++; 5810 modes = nmodes; 5811 5812 mode->mode = HOSTAPD_MODE_IEEE80211B; 5813 5814 mode11g = &modes[mode11g_idx]; 5815 mode->num_channels = mode11g->num_channels; 5816 mode->channels = os_malloc(mode11g->num_channels * 5817 sizeof(struct hostapd_channel_data)); 5818 if (mode->channels == NULL) { 5819 (*num_modes)--; 5820 return modes; /* Could not add 802.11b mode */ 5821 } 5822 os_memcpy(mode->channels, mode11g->channels, 5823 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5824 5825 mode->num_rates = 0; 5826 mode->rates = os_malloc(4 * sizeof(int)); 5827 if (mode->rates == NULL) { 5828 os_free(mode->channels); 5829 (*num_modes)--; 5830 return modes; /* Could not add 802.11b mode */ 5831 } 5832 5833 for (i = 0; i < mode11g->num_rates; i++) { 5834 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5835 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5836 continue; 5837 mode->rates[mode->num_rates] = mode11g->rates[i]; 5838 mode->num_rates++; 5839 if (mode->num_rates == 4) 5840 break; 5841 } 5842 5843 if (mode->num_rates == 0) { 5844 os_free(mode->channels); 5845 os_free(mode->rates); 5846 (*num_modes)--; 5847 return modes; /* No 802.11b rates */ 5848 } 5849 5850 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5851 "information"); 5852 5853 return modes; 5854} 5855 5856 5857static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5858 int end) 5859{ 5860 int c; 5861 5862 for (c = 0; c < mode->num_channels; c++) { 5863 struct hostapd_channel_data *chan = &mode->channels[c]; 5864 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5865 chan->flag |= HOSTAPD_CHAN_HT40; 5866 } 5867} 5868 5869 5870static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5871 int end) 5872{ 5873 int c; 5874 5875 for (c = 0; c < mode->num_channels; c++) { 5876 struct hostapd_channel_data *chan = &mode->channels[c]; 5877 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5878 continue; 5879 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5880 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5881 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5882 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5883 } 5884} 5885 5886 5887static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5888 struct phy_info_arg *results) 5889{ 5890 u32 start, end, max_bw; 5891 u16 m; 5892 5893 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5894 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5895 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5896 return; 5897 5898 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5899 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5900 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5901 5902 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5903 start, end, max_bw); 5904 if (max_bw < 40) 5905 return; 5906 5907 for (m = 0; m < *results->num_modes; m++) { 5908 if (!(results->modes[m].ht_capab & 5909 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5910 continue; 5911 nl80211_set_ht40_mode(&results->modes[m], start, end); 5912 } 5913} 5914 5915 5916static void nl80211_reg_rule_sec(struct nlattr *tb[], 5917 struct phy_info_arg *results) 5918{ 5919 u32 start, end, max_bw; 5920 u16 m; 5921 5922 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5923 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5924 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5925 return; 5926 5927 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5928 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5929 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5930 5931 if (max_bw < 20) 5932 return; 5933 5934 for (m = 0; m < *results->num_modes; m++) { 5935 if (!(results->modes[m].ht_capab & 5936 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5937 continue; 5938 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5939 } 5940} 5941 5942 5943static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5944{ 5945 struct phy_info_arg *results = arg; 5946 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5947 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5948 struct nlattr *nl_rule; 5949 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5950 int rem_rule; 5951 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5952 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5953 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5954 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5955 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5956 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5957 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5958 }; 5959 5960 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5961 genlmsg_attrlen(gnlh, 0), NULL); 5962 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5963 !tb_msg[NL80211_ATTR_REG_RULES]) { 5964 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5965 "available"); 5966 return NL_SKIP; 5967 } 5968 5969 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5970 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5971 5972 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5973 { 5974 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5975 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5976 nl80211_reg_rule_ht40(tb_rule, results); 5977 } 5978 5979 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5980 { 5981 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5982 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5983 nl80211_reg_rule_sec(tb_rule, results); 5984 } 5985 5986 return NL_SKIP; 5987} 5988 5989 5990static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5991 struct phy_info_arg *results) 5992{ 5993 struct nl_msg *msg; 5994 5995 msg = nlmsg_alloc(); 5996 if (!msg) 5997 return -ENOMEM; 5998 5999 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6000 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6001} 6002 6003 6004static struct hostapd_hw_modes * 6005wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6006{ 6007 u32 feat; 6008 struct i802_bss *bss = priv; 6009 struct wpa_driver_nl80211_data *drv = bss->drv; 6010 struct nl_msg *msg; 6011 struct phy_info_arg result = { 6012 .num_modes = num_modes, 6013 .modes = NULL, 6014 .last_mode = -1, 6015 }; 6016 6017 *num_modes = 0; 6018 *flags = 0; 6019 6020 msg = nlmsg_alloc(); 6021 if (!msg) 6022 return NULL; 6023 6024 feat = get_nl80211_protocol_features(drv); 6025 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6026 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6027 else 6028 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6029 6030 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6032 6033 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6034 nl80211_set_ht40_flags(drv, &result); 6035 return wpa_driver_nl80211_postprocess_modes(result.modes, 6036 num_modes); 6037 } 6038 msg = NULL; 6039 nla_put_failure: 6040 nlmsg_free(msg); 6041 return NULL; 6042} 6043 6044 6045static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6046 const void *data, size_t len, 6047 int encrypt, int noack) 6048{ 6049 __u8 rtap_hdr[] = { 6050 0x00, 0x00, /* radiotap version */ 6051 0x0e, 0x00, /* radiotap length */ 6052 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6053 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6054 0x00, /* padding */ 6055 0x00, 0x00, /* RX and TX flags to indicate that */ 6056 0x00, 0x00, /* this is the injected frame directly */ 6057 }; 6058 struct iovec iov[2] = { 6059 { 6060 .iov_base = &rtap_hdr, 6061 .iov_len = sizeof(rtap_hdr), 6062 }, 6063 { 6064 .iov_base = (void *) data, 6065 .iov_len = len, 6066 } 6067 }; 6068 struct msghdr msg = { 6069 .msg_name = NULL, 6070 .msg_namelen = 0, 6071 .msg_iov = iov, 6072 .msg_iovlen = 2, 6073 .msg_control = NULL, 6074 .msg_controllen = 0, 6075 .msg_flags = 0, 6076 }; 6077 int res; 6078 u16 txflags = 0; 6079 6080 if (encrypt) 6081 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6082 6083 if (drv->monitor_sock < 0) { 6084 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6085 "for %s", __func__); 6086 return -1; 6087 } 6088 6089 if (noack) 6090 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6091 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6092 6093 res = sendmsg(drv->monitor_sock, &msg, 0); 6094 if (res < 0) { 6095 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6096 return -1; 6097 } 6098 return 0; 6099} 6100 6101 6102static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6103 const void *data, size_t len, 6104 int encrypt, int noack, 6105 unsigned int freq, int no_cck, 6106 int offchanok, unsigned int wait_time) 6107{ 6108 struct wpa_driver_nl80211_data *drv = bss->drv; 6109 u64 cookie; 6110 6111 if (freq == 0) 6112 freq = bss->freq; 6113 6114 if (drv->use_monitor) 6115 return wpa_driver_nl80211_send_mntr(drv, data, len, 6116 encrypt, noack); 6117 6118 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6119 &cookie, no_cck, noack, offchanok); 6120} 6121 6122 6123static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6124 size_t data_len, int noack, 6125 unsigned int freq, int no_cck, 6126 int offchanok, 6127 unsigned int wait_time) 6128{ 6129 struct wpa_driver_nl80211_data *drv = bss->drv; 6130 struct ieee80211_mgmt *mgmt; 6131 int encrypt = 1; 6132 u16 fc; 6133 6134 mgmt = (struct ieee80211_mgmt *) data; 6135 fc = le_to_host16(mgmt->frame_control); 6136 6137 if ((is_sta_interface(drv->nlmode) || 6138 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6139 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6140 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6141 /* 6142 * The use of last_mgmt_freq is a bit of a hack, 6143 * but it works due to the single-threaded nature 6144 * of wpa_supplicant. 6145 */ 6146 if (freq == 0) 6147 freq = drv->last_mgmt_freq; 6148 return nl80211_send_frame_cmd(bss, freq, 0, 6149 data, data_len, NULL, 1, noack, 6150 1); 6151 } 6152 6153 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6154 if (freq == 0) 6155 freq = bss->freq; 6156 return nl80211_send_frame_cmd(bss, freq, 6157 (int) freq == bss->freq ? 0 : 6158 wait_time, 6159 data, data_len, 6160 &drv->send_action_cookie, 6161 no_cck, noack, offchanok); 6162 } 6163 6164 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6165 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6166 /* 6167 * Only one of the authentication frame types is encrypted. 6168 * In order for static WEP encryption to work properly (i.e., 6169 * to not encrypt the frame), we need to tell mac80211 about 6170 * the frames that must not be encrypted. 6171 */ 6172 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6173 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6174 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6175 encrypt = 0; 6176 } 6177 6178 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6179 noack, freq, no_cck, offchanok, 6180 wait_time); 6181} 6182 6183 6184static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6185 int slot, int ht_opmode, int ap_isolate, 6186 int *basic_rates) 6187{ 6188 struct wpa_driver_nl80211_data *drv = bss->drv; 6189 struct nl_msg *msg; 6190 6191 msg = nlmsg_alloc(); 6192 if (!msg) 6193 return -ENOMEM; 6194 6195 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6196 6197 if (cts >= 0) 6198 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6199 if (preamble >= 0) 6200 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6201 if (slot >= 0) 6202 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6203 if (ht_opmode >= 0) 6204 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6205 if (ap_isolate >= 0) 6206 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6207 6208 if (basic_rates) { 6209 u8 rates[NL80211_MAX_SUPP_RATES]; 6210 u8 rates_len = 0; 6211 int i; 6212 6213 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6214 i++) 6215 rates[rates_len++] = basic_rates[i] / 5; 6216 6217 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6218 } 6219 6220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6221 6222 return send_and_recv_msgs(drv, msg, NULL, NULL); 6223 nla_put_failure: 6224 nlmsg_free(msg); 6225 return -ENOBUFS; 6226} 6227 6228 6229static int wpa_driver_nl80211_set_acl(void *priv, 6230 struct hostapd_acl_params *params) 6231{ 6232 struct i802_bss *bss = priv; 6233 struct wpa_driver_nl80211_data *drv = bss->drv; 6234 struct nl_msg *msg; 6235 struct nlattr *acl; 6236 unsigned int i; 6237 int ret = 0; 6238 6239 if (!(drv->capa.max_acl_mac_addrs)) 6240 return -ENOTSUP; 6241 6242 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6243 return -ENOTSUP; 6244 6245 msg = nlmsg_alloc(); 6246 if (!msg) 6247 return -ENOMEM; 6248 6249 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6250 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6251 6252 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6253 6254 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6255 6256 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6257 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6258 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6259 6260 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6261 if (acl == NULL) 6262 goto nla_put_failure; 6263 6264 for (i = 0; i < params->num_mac_acl; i++) 6265 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6266 6267 nla_nest_end(msg, acl); 6268 6269 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6270 msg = NULL; 6271 if (ret) { 6272 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6273 ret, strerror(-ret)); 6274 } 6275 6276nla_put_failure: 6277 nlmsg_free(msg); 6278 6279 return ret; 6280} 6281 6282 6283static int wpa_driver_nl80211_set_ap(void *priv, 6284 struct wpa_driver_ap_params *params) 6285{ 6286 struct i802_bss *bss = priv; 6287 struct wpa_driver_nl80211_data *drv = bss->drv; 6288 struct nl_msg *msg; 6289 u8 cmd = NL80211_CMD_NEW_BEACON; 6290 int ret; 6291 int beacon_set; 6292 int ifindex = if_nametoindex(bss->ifname); 6293 int num_suites; 6294 u32 suites[10]; 6295 u32 ver; 6296 6297 beacon_set = bss->beacon_set; 6298 6299 msg = nlmsg_alloc(); 6300 if (!msg) 6301 return -ENOMEM; 6302 6303 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6304 beacon_set); 6305 if (beacon_set) 6306 cmd = NL80211_CMD_SET_BEACON; 6307 6308 nl80211_cmd(drv, msg, 0, cmd); 6309 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6310 params->head, params->head_len); 6311 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6312 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6313 params->tail, params->tail_len); 6314 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6315 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6316 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6317 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6318 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6319 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6320 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6321 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6322 params->ssid, params->ssid_len); 6323 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6324 params->ssid); 6325 if (params->proberesp && params->proberesp_len) { 6326 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6327 params->proberesp, params->proberesp_len); 6328 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6329 params->proberesp); 6330 } 6331 switch (params->hide_ssid) { 6332 case NO_SSID_HIDING: 6333 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6334 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6335 NL80211_HIDDEN_SSID_NOT_IN_USE); 6336 break; 6337 case HIDDEN_SSID_ZERO_LEN: 6338 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6339 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6340 NL80211_HIDDEN_SSID_ZERO_LEN); 6341 break; 6342 case HIDDEN_SSID_ZERO_CONTENTS: 6343 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6344 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6345 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6346 break; 6347 } 6348 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6349 if (params->privacy) 6350 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6351 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6352 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6353 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6354 /* Leave out the attribute */ 6355 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6356 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6357 NL80211_AUTHTYPE_SHARED_KEY); 6358 else 6359 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6360 NL80211_AUTHTYPE_OPEN_SYSTEM); 6361 6362 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6363 ver = 0; 6364 if (params->wpa_version & WPA_PROTO_WPA) 6365 ver |= NL80211_WPA_VERSION_1; 6366 if (params->wpa_version & WPA_PROTO_RSN) 6367 ver |= NL80211_WPA_VERSION_2; 6368 if (ver) 6369 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6370 6371 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6372 params->key_mgmt_suites); 6373 num_suites = 0; 6374 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6375 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6376 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6377 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6378 if (num_suites) { 6379 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6380 num_suites * sizeof(u32), suites); 6381 } 6382 6383 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6384 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6385 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6386 6387 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6388 params->pairwise_ciphers); 6389 num_suites = 0; 6390 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6391 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6392 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6393 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6394 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6395 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6396 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6397 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6398 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6399 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6400 if (num_suites) { 6401 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6402 num_suites * sizeof(u32), suites); 6403 } 6404 6405 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6406 params->group_cipher); 6407 switch (params->group_cipher) { 6408 case WPA_CIPHER_CCMP: 6409 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6410 WLAN_CIPHER_SUITE_CCMP); 6411 break; 6412 case WPA_CIPHER_GCMP: 6413 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6414 WLAN_CIPHER_SUITE_GCMP); 6415 break; 6416 case WPA_CIPHER_TKIP: 6417 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6418 WLAN_CIPHER_SUITE_TKIP); 6419 break; 6420 case WPA_CIPHER_WEP104: 6421 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6422 WLAN_CIPHER_SUITE_WEP104); 6423 break; 6424 case WPA_CIPHER_WEP40: 6425 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6426 WLAN_CIPHER_SUITE_WEP40); 6427 break; 6428 } 6429 6430 if (params->beacon_ies) { 6431 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6432 params->beacon_ies); 6433 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6434 wpabuf_head(params->beacon_ies)); 6435 } 6436 if (params->proberesp_ies) { 6437 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6438 params->proberesp_ies); 6439 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6440 wpabuf_len(params->proberesp_ies), 6441 wpabuf_head(params->proberesp_ies)); 6442 } 6443 if (params->assocresp_ies) { 6444 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6445 params->assocresp_ies); 6446 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6447 wpabuf_len(params->assocresp_ies), 6448 wpabuf_head(params->assocresp_ies)); 6449 } 6450 6451 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6452 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6453 params->ap_max_inactivity); 6454 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6455 params->ap_max_inactivity); 6456 } 6457 6458 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6459 if (ret) { 6460 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6461 ret, strerror(-ret)); 6462 } else { 6463 bss->beacon_set = 1; 6464 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6465 params->short_slot_time, params->ht_opmode, 6466 params->isolate, params->basic_rates); 6467 } 6468 return ret; 6469 nla_put_failure: 6470 nlmsg_free(msg); 6471 return -ENOBUFS; 6472} 6473 6474 6475static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6476 struct hostapd_freq_params *freq) 6477{ 6478 struct wpa_driver_nl80211_data *drv = bss->drv; 6479 struct nl_msg *msg; 6480 int ret; 6481 6482 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6483 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6484 freq->freq, freq->ht_enabled, freq->vht_enabled, 6485 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6486 msg = nlmsg_alloc(); 6487 if (!msg) 6488 return -1; 6489 6490 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6491 6492 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6493 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6494 if (freq->vht_enabled) { 6495 switch (freq->bandwidth) { 6496 case 20: 6497 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6498 NL80211_CHAN_WIDTH_20); 6499 break; 6500 case 40: 6501 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6502 NL80211_CHAN_WIDTH_40); 6503 break; 6504 case 80: 6505 if (freq->center_freq2) 6506 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6507 NL80211_CHAN_WIDTH_80P80); 6508 else 6509 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6510 NL80211_CHAN_WIDTH_80); 6511 break; 6512 case 160: 6513 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6514 NL80211_CHAN_WIDTH_160); 6515 break; 6516 default: 6517 return -1; 6518 } 6519 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6520 if (freq->center_freq2) 6521 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6522 freq->center_freq2); 6523 } else if (freq->ht_enabled) { 6524 switch (freq->sec_channel_offset) { 6525 case -1: 6526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6527 NL80211_CHAN_HT40MINUS); 6528 break; 6529 case 1: 6530 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6531 NL80211_CHAN_HT40PLUS); 6532 break; 6533 default: 6534 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6535 NL80211_CHAN_HT20); 6536 break; 6537 } 6538 } 6539 6540 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6541 msg = NULL; 6542 if (ret == 0) { 6543 bss->freq = freq->freq; 6544 return 0; 6545 } 6546 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6547 "%d (%s)", freq->freq, ret, strerror(-ret)); 6548nla_put_failure: 6549 nlmsg_free(msg); 6550 return -1; 6551} 6552 6553 6554static u32 sta_flags_nl80211(int flags) 6555{ 6556 u32 f = 0; 6557 6558 if (flags & WPA_STA_AUTHORIZED) 6559 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6560 if (flags & WPA_STA_WMM) 6561 f |= BIT(NL80211_STA_FLAG_WME); 6562 if (flags & WPA_STA_SHORT_PREAMBLE) 6563 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6564 if (flags & WPA_STA_MFP) 6565 f |= BIT(NL80211_STA_FLAG_MFP); 6566 if (flags & WPA_STA_TDLS_PEER) 6567 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6568 6569 return f; 6570} 6571 6572 6573static int wpa_driver_nl80211_sta_add(void *priv, 6574 struct hostapd_sta_add_params *params) 6575{ 6576 struct i802_bss *bss = priv; 6577 struct wpa_driver_nl80211_data *drv = bss->drv; 6578 struct nl_msg *msg; 6579 struct nl80211_sta_flag_update upd; 6580 int ret = -ENOBUFS; 6581 6582 if ((params->flags & WPA_STA_TDLS_PEER) && 6583 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6584 return -EOPNOTSUPP; 6585 6586 msg = nlmsg_alloc(); 6587 if (!msg) 6588 return -ENOMEM; 6589 6590 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6591 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6592 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6593 NL80211_CMD_NEW_STATION); 6594 6595 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6596 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6597 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6598 params->supp_rates); 6599 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6600 params->supp_rates_len); 6601 if (!params->set) { 6602 if (params->aid) { 6603 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6604 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6605 } else { 6606 /* 6607 * cfg80211 validates that AID is non-zero, so we have 6608 * to make this a non-zero value for the TDLS case where 6609 * a dummy STA entry is used for now. 6610 */ 6611 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6612 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6613 } 6614 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6615 params->listen_interval); 6616 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6617 params->listen_interval); 6618 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6619 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6620 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6621 } 6622 if (params->ht_capabilities) { 6623 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6624 (u8 *) params->ht_capabilities, 6625 sizeof(*params->ht_capabilities)); 6626 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6627 sizeof(*params->ht_capabilities), 6628 params->ht_capabilities); 6629 } 6630 6631 if (params->vht_capabilities) { 6632 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6633 (u8 *) params->vht_capabilities, 6634 sizeof(*params->vht_capabilities)); 6635 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6636 sizeof(*params->vht_capabilities), 6637 params->vht_capabilities); 6638 } 6639 6640 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6641 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6642 6643 if (params->ext_capab) { 6644 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6645 params->ext_capab, params->ext_capab_len); 6646 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6647 params->ext_capab_len, params->ext_capab); 6648 } 6649 6650 os_memset(&upd, 0, sizeof(upd)); 6651 upd.mask = sta_flags_nl80211(params->flags); 6652 upd.set = upd.mask; 6653 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6654 upd.set, upd.mask); 6655 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6656 6657 if (params->flags & WPA_STA_WMM) { 6658 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6659 6660 if (!wme) 6661 goto nla_put_failure; 6662 6663 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6664 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6665 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6666 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6667 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6668 WMM_QOSINFO_STA_SP_MASK); 6669 nla_nest_end(msg, wme); 6670 } 6671 6672 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6673 msg = NULL; 6674 if (ret) 6675 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6676 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6677 strerror(-ret)); 6678 if (ret == -EEXIST) 6679 ret = 0; 6680 nla_put_failure: 6681 nlmsg_free(msg); 6682 return ret; 6683} 6684 6685 6686static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6687{ 6688 struct wpa_driver_nl80211_data *drv = bss->drv; 6689 struct nl_msg *msg; 6690 int ret; 6691 6692 msg = nlmsg_alloc(); 6693 if (!msg) 6694 return -ENOMEM; 6695 6696 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6697 6698 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6699 if_nametoindex(bss->ifname)); 6700 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6701 6702 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6703 if (ret == -ENOENT) 6704 return 0; 6705 return ret; 6706 nla_put_failure: 6707 nlmsg_free(msg); 6708 return -ENOBUFS; 6709} 6710 6711 6712static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6713 int ifidx) 6714{ 6715 struct nl_msg *msg; 6716 6717 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6718 6719 /* stop listening for EAPOL on this interface */ 6720 del_ifidx(drv, ifidx); 6721 6722 msg = nlmsg_alloc(); 6723 if (!msg) 6724 goto nla_put_failure; 6725 6726 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6727 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6728 6729 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6730 return; 6731 msg = NULL; 6732 nla_put_failure: 6733 nlmsg_free(msg); 6734 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6735} 6736 6737 6738static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6739{ 6740 switch (mode) { 6741 case NL80211_IFTYPE_ADHOC: 6742 return "ADHOC"; 6743 case NL80211_IFTYPE_STATION: 6744 return "STATION"; 6745 case NL80211_IFTYPE_AP: 6746 return "AP"; 6747 case NL80211_IFTYPE_AP_VLAN: 6748 return "AP_VLAN"; 6749 case NL80211_IFTYPE_WDS: 6750 return "WDS"; 6751 case NL80211_IFTYPE_MONITOR: 6752 return "MONITOR"; 6753 case NL80211_IFTYPE_MESH_POINT: 6754 return "MESH_POINT"; 6755 case NL80211_IFTYPE_P2P_CLIENT: 6756 return "P2P_CLIENT"; 6757 case NL80211_IFTYPE_P2P_GO: 6758 return "P2P_GO"; 6759 case NL80211_IFTYPE_P2P_DEVICE: 6760 return "P2P_DEVICE"; 6761 default: 6762 return "unknown"; 6763 } 6764} 6765 6766 6767static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6768 const char *ifname, 6769 enum nl80211_iftype iftype, 6770 const u8 *addr, int wds, 6771 int (*handler)(struct nl_msg *, void *), 6772 void *arg) 6773{ 6774 struct nl_msg *msg; 6775 int ifidx; 6776 int ret = -ENOBUFS; 6777 6778 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6779 iftype, nl80211_iftype_str(iftype)); 6780 6781 msg = nlmsg_alloc(); 6782 if (!msg) 6783 return -1; 6784 6785 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6786 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6787 goto nla_put_failure; 6788 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6789 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6790 6791 if (iftype == NL80211_IFTYPE_MONITOR) { 6792 struct nlattr *flags; 6793 6794 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6795 if (!flags) 6796 goto nla_put_failure; 6797 6798 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6799 6800 nla_nest_end(msg, flags); 6801 } else if (wds) { 6802 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6803 } 6804 6805 ret = send_and_recv_msgs(drv, msg, handler, arg); 6806 msg = NULL; 6807 if (ret) { 6808 nla_put_failure: 6809 nlmsg_free(msg); 6810 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6811 ifname, ret, strerror(-ret)); 6812 return ret; 6813 } 6814 6815 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6816 return 0; 6817 6818 ifidx = if_nametoindex(ifname); 6819 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6820 ifname, ifidx); 6821 6822 if (ifidx <= 0) 6823 return -1; 6824 6825 /* start listening for EAPOL on this interface */ 6826 add_ifidx(drv, ifidx); 6827 6828 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6829 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6830 nl80211_remove_iface(drv, ifidx); 6831 return -1; 6832 } 6833 6834 return ifidx; 6835} 6836 6837 6838static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6839 const char *ifname, enum nl80211_iftype iftype, 6840 const u8 *addr, int wds, 6841 int (*handler)(struct nl_msg *, void *), 6842 void *arg) 6843{ 6844 int ret; 6845 6846 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6847 arg); 6848 6849 /* if error occurred and interface exists already */ 6850 if (ret == -ENFILE && if_nametoindex(ifname)) { 6851 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6852 6853 /* Try to remove the interface that was already there. */ 6854 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6855 6856 /* Try to create the interface again */ 6857 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6858 wds, handler, arg); 6859 } 6860 6861 if (ret >= 0 && is_p2p_net_interface(iftype)) 6862 nl80211_disable_11b_rates(drv, ret, 1); 6863 6864 return ret; 6865} 6866 6867 6868static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6869{ 6870 struct ieee80211_hdr *hdr; 6871 u16 fc; 6872 union wpa_event_data event; 6873 6874 hdr = (struct ieee80211_hdr *) buf; 6875 fc = le_to_host16(hdr->frame_control); 6876 6877 os_memset(&event, 0, sizeof(event)); 6878 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6879 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6880 event.tx_status.dst = hdr->addr1; 6881 event.tx_status.data = buf; 6882 event.tx_status.data_len = len; 6883 event.tx_status.ack = ok; 6884 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6885} 6886 6887 6888static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6889 u8 *buf, size_t len) 6890{ 6891 struct ieee80211_hdr *hdr = (void *)buf; 6892 u16 fc; 6893 union wpa_event_data event; 6894 6895 if (len < sizeof(*hdr)) 6896 return; 6897 6898 fc = le_to_host16(hdr->frame_control); 6899 6900 os_memset(&event, 0, sizeof(event)); 6901 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6902 event.rx_from_unknown.addr = hdr->addr2; 6903 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6904 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6905 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6906} 6907 6908 6909static void handle_frame(struct wpa_driver_nl80211_data *drv, 6910 u8 *buf, size_t len, int datarate, int ssi_signal) 6911{ 6912 struct ieee80211_hdr *hdr; 6913 u16 fc; 6914 union wpa_event_data event; 6915 6916 hdr = (struct ieee80211_hdr *) buf; 6917 fc = le_to_host16(hdr->frame_control); 6918 6919 switch (WLAN_FC_GET_TYPE(fc)) { 6920 case WLAN_FC_TYPE_MGMT: 6921 os_memset(&event, 0, sizeof(event)); 6922 event.rx_mgmt.frame = buf; 6923 event.rx_mgmt.frame_len = len; 6924 event.rx_mgmt.datarate = datarate; 6925 event.rx_mgmt.ssi_signal = ssi_signal; 6926 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6927 break; 6928 case WLAN_FC_TYPE_CTRL: 6929 /* can only get here with PS-Poll frames */ 6930 wpa_printf(MSG_DEBUG, "CTRL"); 6931 from_unknown_sta(drv, buf, len); 6932 break; 6933 case WLAN_FC_TYPE_DATA: 6934 from_unknown_sta(drv, buf, len); 6935 break; 6936 } 6937} 6938 6939 6940static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6941{ 6942 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6943 int len; 6944 unsigned char buf[3000]; 6945 struct ieee80211_radiotap_iterator iter; 6946 int ret; 6947 int datarate = 0, ssi_signal = 0; 6948 int injected = 0, failed = 0, rxflags = 0; 6949 6950 len = recv(sock, buf, sizeof(buf), 0); 6951 if (len < 0) { 6952 perror("recv"); 6953 return; 6954 } 6955 6956 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6957 printf("received invalid radiotap frame\n"); 6958 return; 6959 } 6960 6961 while (1) { 6962 ret = ieee80211_radiotap_iterator_next(&iter); 6963 if (ret == -ENOENT) 6964 break; 6965 if (ret) { 6966 printf("received invalid radiotap frame (%d)\n", ret); 6967 return; 6968 } 6969 switch (iter.this_arg_index) { 6970 case IEEE80211_RADIOTAP_FLAGS: 6971 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6972 len -= 4; 6973 break; 6974 case IEEE80211_RADIOTAP_RX_FLAGS: 6975 rxflags = 1; 6976 break; 6977 case IEEE80211_RADIOTAP_TX_FLAGS: 6978 injected = 1; 6979 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6980 IEEE80211_RADIOTAP_F_TX_FAIL; 6981 break; 6982 case IEEE80211_RADIOTAP_DATA_RETRIES: 6983 break; 6984 case IEEE80211_RADIOTAP_CHANNEL: 6985 /* TODO: convert from freq/flags to channel number */ 6986 break; 6987 case IEEE80211_RADIOTAP_RATE: 6988 datarate = *iter.this_arg * 5; 6989 break; 6990 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6991 ssi_signal = (s8) *iter.this_arg; 6992 break; 6993 } 6994 } 6995 6996 if (rxflags && injected) 6997 return; 6998 6999 if (!injected) 7000 handle_frame(drv, buf + iter.max_length, 7001 len - iter.max_length, datarate, ssi_signal); 7002 else 7003 handle_tx_callback(drv->ctx, buf + iter.max_length, 7004 len - iter.max_length, !failed); 7005} 7006 7007 7008/* 7009 * we post-process the filter code later and rewrite 7010 * this to the offset to the last instruction 7011 */ 7012#define PASS 0xFF 7013#define FAIL 0xFE 7014 7015static struct sock_filter msock_filter_insns[] = { 7016 /* 7017 * do a little-endian load of the radiotap length field 7018 */ 7019 /* load lower byte into A */ 7020 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7021 /* put it into X (== index register) */ 7022 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7023 /* load upper byte into A */ 7024 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7025 /* left-shift it by 8 */ 7026 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7027 /* or with X */ 7028 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7029 /* put result into X */ 7030 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7031 7032 /* 7033 * Allow management frames through, this also gives us those 7034 * management frames that we sent ourselves with status 7035 */ 7036 /* load the lower byte of the IEEE 802.11 frame control field */ 7037 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7038 /* mask off frame type and version */ 7039 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7040 /* accept frame if it's both 0, fall through otherwise */ 7041 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7042 7043 /* 7044 * TODO: add a bit to radiotap RX flags that indicates 7045 * that the sending station is not associated, then 7046 * add a filter here that filters on our DA and that flag 7047 * to allow us to deauth frames to that bad station. 7048 * 7049 * For now allow all To DS data frames through. 7050 */ 7051 /* load the IEEE 802.11 frame control field */ 7052 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7053 /* mask off frame type, version and DS status */ 7054 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7055 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7056 */ 7057 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7058 7059#if 0 7060 /* 7061 * drop non-data frames 7062 */ 7063 /* load the lower byte of the frame control field */ 7064 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7065 /* mask off QoS bit */ 7066 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7067 /* drop non-data frames */ 7068 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7069#endif 7070 /* load the upper byte of the frame control field */ 7071 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7072 /* mask off toDS/fromDS */ 7073 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7074 /* accept WDS frames */ 7075 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7076 7077 /* 7078 * add header length to index 7079 */ 7080 /* load the lower byte of the frame control field */ 7081 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7082 /* mask off QoS bit */ 7083 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7084 /* right shift it by 6 to give 0 or 2 */ 7085 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7086 /* add data frame header length */ 7087 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7088 /* add index, was start of 802.11 header */ 7089 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7090 /* move to index, now start of LL header */ 7091 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7092 7093 /* 7094 * Accept empty data frames, we use those for 7095 * polling activity. 7096 */ 7097 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7098 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7099 7100 /* 7101 * Accept EAPOL frames 7102 */ 7103 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7104 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7105 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7106 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7107 7108 /* keep these last two statements or change the code below */ 7109 /* return 0 == "DROP" */ 7110 BPF_STMT(BPF_RET | BPF_K, 0), 7111 /* return ~0 == "keep all" */ 7112 BPF_STMT(BPF_RET | BPF_K, ~0), 7113}; 7114 7115static struct sock_fprog msock_filter = { 7116 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7117 .filter = msock_filter_insns, 7118}; 7119 7120 7121static int add_monitor_filter(int s) 7122{ 7123 int idx; 7124 7125 /* rewrite all PASS/FAIL jump offsets */ 7126 for (idx = 0; idx < msock_filter.len; idx++) { 7127 struct sock_filter *insn = &msock_filter_insns[idx]; 7128 7129 if (BPF_CLASS(insn->code) == BPF_JMP) { 7130 if (insn->code == (BPF_JMP|BPF_JA)) { 7131 if (insn->k == PASS) 7132 insn->k = msock_filter.len - idx - 2; 7133 else if (insn->k == FAIL) 7134 insn->k = msock_filter.len - idx - 3; 7135 } 7136 7137 if (insn->jt == PASS) 7138 insn->jt = msock_filter.len - idx - 2; 7139 else if (insn->jt == FAIL) 7140 insn->jt = msock_filter.len - idx - 3; 7141 7142 if (insn->jf == PASS) 7143 insn->jf = msock_filter.len - idx - 2; 7144 else if (insn->jf == FAIL) 7145 insn->jf = msock_filter.len - idx - 3; 7146 } 7147 } 7148 7149 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7150 &msock_filter, sizeof(msock_filter))) { 7151 perror("SO_ATTACH_FILTER"); 7152 return -1; 7153 } 7154 7155 return 0; 7156} 7157 7158 7159static void nl80211_remove_monitor_interface( 7160 struct wpa_driver_nl80211_data *drv) 7161{ 7162 drv->monitor_refcount--; 7163 if (drv->monitor_refcount > 0) 7164 return; 7165 7166 if (drv->monitor_ifidx >= 0) { 7167 nl80211_remove_iface(drv, drv->monitor_ifidx); 7168 drv->monitor_ifidx = -1; 7169 } 7170 if (drv->monitor_sock >= 0) { 7171 eloop_unregister_read_sock(drv->monitor_sock); 7172 close(drv->monitor_sock); 7173 drv->monitor_sock = -1; 7174 } 7175} 7176 7177 7178static int 7179nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7180{ 7181 char buf[IFNAMSIZ]; 7182 struct sockaddr_ll ll; 7183 int optval; 7184 socklen_t optlen; 7185 7186 if (drv->monitor_ifidx >= 0) { 7187 drv->monitor_refcount++; 7188 return 0; 7189 } 7190 7191 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7192 /* 7193 * P2P interface name is of the format p2p-%s-%d. For monitor 7194 * interface name corresponding to P2P GO, replace "p2p-" with 7195 * "mon-" to retain the same interface name length and to 7196 * indicate that it is a monitor interface. 7197 */ 7198 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7199 } else { 7200 /* Non-P2P interface with AP functionality. */ 7201 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7202 } 7203 7204 buf[IFNAMSIZ - 1] = '\0'; 7205 7206 drv->monitor_ifidx = 7207 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7208 0, NULL, NULL); 7209 7210 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7211 /* 7212 * This is backward compatibility for a few versions of 7213 * the kernel only that didn't advertise the right 7214 * attributes for the only driver that then supported 7215 * AP mode w/o monitor -- ath6kl. 7216 */ 7217 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7218 "monitor interface type - try to run without it"); 7219 drv->device_ap_sme = 1; 7220 } 7221 7222 if (drv->monitor_ifidx < 0) 7223 return -1; 7224 7225 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7226 goto error; 7227 7228 memset(&ll, 0, sizeof(ll)); 7229 ll.sll_family = AF_PACKET; 7230 ll.sll_ifindex = drv->monitor_ifidx; 7231 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7232 if (drv->monitor_sock < 0) { 7233 perror("socket[PF_PACKET,SOCK_RAW]"); 7234 goto error; 7235 } 7236 7237 if (add_monitor_filter(drv->monitor_sock)) { 7238 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7239 "interface; do filtering in user space"); 7240 /* This works, but will cost in performance. */ 7241 } 7242 7243 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7244 perror("monitor socket bind"); 7245 goto error; 7246 } 7247 7248 optlen = sizeof(optval); 7249 optval = 20; 7250 if (setsockopt 7251 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7252 perror("Failed to set socket priority"); 7253 goto error; 7254 } 7255 7256 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7257 drv, NULL)) { 7258 printf("Could not register monitor read socket\n"); 7259 goto error; 7260 } 7261 7262 return 0; 7263 error: 7264 nl80211_remove_monitor_interface(drv); 7265 return -1; 7266} 7267 7268 7269static int nl80211_setup_ap(struct i802_bss *bss) 7270{ 7271 struct wpa_driver_nl80211_data *drv = bss->drv; 7272 7273 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7274 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7275 7276 /* 7277 * Disable Probe Request reporting unless we need it in this way for 7278 * devices that include the AP SME, in the other case (unless using 7279 * monitor iface) we'll get it through the nl_mgmt socket instead. 7280 */ 7281 if (!drv->device_ap_sme) 7282 wpa_driver_nl80211_probe_req_report(bss, 0); 7283 7284 if (!drv->device_ap_sme && !drv->use_monitor) 7285 if (nl80211_mgmt_subscribe_ap(bss)) 7286 return -1; 7287 7288 if (drv->device_ap_sme && !drv->use_monitor) 7289 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7290 return -1; 7291 7292 if (!drv->device_ap_sme && drv->use_monitor && 7293 nl80211_create_monitor_interface(drv) && 7294 !drv->device_ap_sme) 7295 return -1; 7296 7297#ifdef ANDROID_P2P 7298 if (drv->device_ap_sme && drv->use_monitor) 7299 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7300 return -1; 7301 7302 if (drv->use_monitor && 7303 nl80211_create_monitor_interface(drv)) 7304 return -1; 7305#endif 7306 7307 if (drv->device_ap_sme && 7308 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7309 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7310 "Probe Request frame reporting in AP mode"); 7311 /* Try to survive without this */ 7312 } 7313 7314 return 0; 7315} 7316 7317 7318static void nl80211_teardown_ap(struct i802_bss *bss) 7319{ 7320 struct wpa_driver_nl80211_data *drv = bss->drv; 7321 7322 if (drv->device_ap_sme) { 7323 wpa_driver_nl80211_probe_req_report(bss, 0); 7324 if (!drv->use_monitor) 7325 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7326 } else if (drv->use_monitor) 7327 nl80211_remove_monitor_interface(drv); 7328 else 7329 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7330 7331 bss->beacon_set = 0; 7332} 7333 7334 7335static int nl80211_send_eapol_data(struct i802_bss *bss, 7336 const u8 *addr, const u8 *data, 7337 size_t data_len) 7338{ 7339 struct sockaddr_ll ll; 7340 int ret; 7341 7342 if (bss->drv->eapol_tx_sock < 0) { 7343 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7344 return -1; 7345 } 7346 7347 os_memset(&ll, 0, sizeof(ll)); 7348 ll.sll_family = AF_PACKET; 7349 ll.sll_ifindex = bss->ifindex; 7350 ll.sll_protocol = htons(ETH_P_PAE); 7351 ll.sll_halen = ETH_ALEN; 7352 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7353 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7354 (struct sockaddr *) &ll, sizeof(ll)); 7355 if (ret < 0) 7356 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7357 strerror(errno)); 7358 7359 return ret; 7360} 7361 7362 7363static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7364 7365static int wpa_driver_nl80211_hapd_send_eapol( 7366 void *priv, const u8 *addr, const u8 *data, 7367 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7368{ 7369 struct i802_bss *bss = priv; 7370 struct wpa_driver_nl80211_data *drv = bss->drv; 7371 struct ieee80211_hdr *hdr; 7372 size_t len; 7373 u8 *pos; 7374 int res; 7375 int qos = flags & WPA_STA_WMM; 7376#ifndef ANDROID_P2P 7377 if (drv->device_ap_sme || !drv->use_monitor) 7378#else 7379 if (drv->device_ap_sme && !drv->use_monitor) 7380#endif 7381 return nl80211_send_eapol_data(bss, addr, data, data_len); 7382 7383 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7384 data_len; 7385 hdr = os_zalloc(len); 7386 if (hdr == NULL) { 7387 printf("malloc() failed for i802_send_data(len=%lu)\n", 7388 (unsigned long) len); 7389 return -1; 7390 } 7391 7392 hdr->frame_control = 7393 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7394 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7395 if (encrypt) 7396 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7397 if (qos) { 7398 hdr->frame_control |= 7399 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7400 } 7401 7402 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7403 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7404 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7405 pos = (u8 *) (hdr + 1); 7406 7407 if (qos) { 7408 /* Set highest priority in QoS header */ 7409 pos[0] = 7; 7410 pos[1] = 0; 7411 pos += 2; 7412 } 7413 7414 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7415 pos += sizeof(rfc1042_header); 7416 WPA_PUT_BE16(pos, ETH_P_PAE); 7417 pos += 2; 7418 memcpy(pos, data, data_len); 7419 7420 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7421 0, 0, 0, 0); 7422 if (res < 0) { 7423 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7424 "failed: %d (%s)", 7425 (unsigned long) len, errno, strerror(errno)); 7426 } 7427 os_free(hdr); 7428 7429 return res; 7430} 7431 7432 7433static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7434 int total_flags, 7435 int flags_or, int flags_and) 7436{ 7437 struct i802_bss *bss = priv; 7438 struct wpa_driver_nl80211_data *drv = bss->drv; 7439 struct nl_msg *msg; 7440 struct nlattr *flags; 7441 struct nl80211_sta_flag_update upd; 7442 7443 msg = nlmsg_alloc(); 7444 if (!msg) 7445 return -ENOMEM; 7446 7447 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7448 7449 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7450 if_nametoindex(bss->ifname)); 7451 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7452 7453 /* 7454 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7455 * can be removed eventually. 7456 */ 7457 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7458 if (!flags) 7459 goto nla_put_failure; 7460 if (total_flags & WPA_STA_AUTHORIZED) 7461 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7462 7463 if (total_flags & WPA_STA_WMM) 7464 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7465 7466 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7467 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7468 7469 if (total_flags & WPA_STA_MFP) 7470 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7471 7472 if (total_flags & WPA_STA_TDLS_PEER) 7473 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7474 7475 nla_nest_end(msg, flags); 7476 7477 os_memset(&upd, 0, sizeof(upd)); 7478 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7479 upd.set = sta_flags_nl80211(flags_or); 7480 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7481 7482 return send_and_recv_msgs(drv, msg, NULL, NULL); 7483 nla_put_failure: 7484 nlmsg_free(msg); 7485 return -ENOBUFS; 7486} 7487 7488 7489static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7490 struct wpa_driver_associate_params *params) 7491{ 7492 enum nl80211_iftype nlmode, old_mode; 7493 struct hostapd_freq_params freq = { 7494 .freq = params->freq, 7495 }; 7496 7497 if (params->p2p) { 7498 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7499 "group (GO)"); 7500 nlmode = NL80211_IFTYPE_P2P_GO; 7501 } else 7502 nlmode = NL80211_IFTYPE_AP; 7503 7504 old_mode = drv->nlmode; 7505 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7506 nl80211_remove_monitor_interface(drv); 7507 return -1; 7508 } 7509 7510 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7511 if (old_mode != nlmode) 7512 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7513 nl80211_remove_monitor_interface(drv); 7514 return -1; 7515 } 7516 7517 return 0; 7518} 7519 7520 7521static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7522{ 7523 struct nl_msg *msg; 7524 int ret = -1; 7525 7526 msg = nlmsg_alloc(); 7527 if (!msg) 7528 return -1; 7529 7530 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7532 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7533 msg = NULL; 7534 if (ret) { 7535 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7536 "(%s)", ret, strerror(-ret)); 7537 goto nla_put_failure; 7538 } 7539 7540 ret = 0; 7541 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7542 7543nla_put_failure: 7544 nlmsg_free(msg); 7545 return ret; 7546} 7547 7548 7549static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7550 struct wpa_driver_associate_params *params) 7551{ 7552 struct nl_msg *msg; 7553 int ret = -1; 7554 int count = 0; 7555 7556 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7557 7558 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7559 NL80211_IFTYPE_ADHOC)) { 7560 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7561 "IBSS mode"); 7562 return -1; 7563 } 7564 7565retry: 7566 msg = nlmsg_alloc(); 7567 if (!msg) 7568 return -1; 7569 7570 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7572 7573 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7574 goto nla_put_failure; 7575 7576 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7577 params->ssid, params->ssid_len); 7578 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7579 params->ssid); 7580 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7581 drv->ssid_len = params->ssid_len; 7582 7583 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7585 7586 ret = nl80211_set_conn_keys(params, msg); 7587 if (ret) 7588 goto nla_put_failure; 7589 7590 if (params->bssid && params->fixed_bssid) { 7591 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7592 MAC2STR(params->bssid)); 7593 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7594 } 7595 7596 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7597 params->key_mgmt_suite == KEY_MGMT_PSK || 7598 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7599 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7600 wpa_printf(MSG_DEBUG, " * control port"); 7601 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7602 } 7603 7604 if (params->wpa_ie) { 7605 wpa_hexdump(MSG_DEBUG, 7606 " * Extra IEs for Beacon/Probe Response frames", 7607 params->wpa_ie, params->wpa_ie_len); 7608 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7609 params->wpa_ie); 7610 } 7611 7612 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7613 msg = NULL; 7614 if (ret) { 7615 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7616 ret, strerror(-ret)); 7617 count++; 7618 if (ret == -EALREADY && count == 1) { 7619 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7620 "forced leave"); 7621 nl80211_leave_ibss(drv); 7622 nlmsg_free(msg); 7623 goto retry; 7624 } 7625 7626 goto nla_put_failure; 7627 } 7628 ret = 0; 7629 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7630 7631nla_put_failure: 7632 nlmsg_free(msg); 7633 return ret; 7634} 7635 7636 7637static int wpa_driver_nl80211_try_connect( 7638 struct wpa_driver_nl80211_data *drv, 7639 struct wpa_driver_associate_params *params) 7640{ 7641 struct nl_msg *msg; 7642 enum nl80211_auth_type type; 7643 int ret = 0; 7644 int algs; 7645 7646 msg = nlmsg_alloc(); 7647 if (!msg) 7648 return -1; 7649 7650 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7651 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7652 7653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7654 if (params->bssid) { 7655 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7656 MAC2STR(params->bssid)); 7657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7658 } 7659 if (params->freq) { 7660 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7661 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7662 } 7663 if (params->bg_scan_period >= 0) { 7664 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7665 params->bg_scan_period); 7666 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7667 params->bg_scan_period); 7668 } 7669 if (params->ssid) { 7670 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7671 params->ssid, params->ssid_len); 7672 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7673 params->ssid); 7674 if (params->ssid_len > sizeof(drv->ssid)) 7675 goto nla_put_failure; 7676 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7677 drv->ssid_len = params->ssid_len; 7678 } 7679 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7680 if (params->wpa_ie) 7681 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7682 params->wpa_ie); 7683 7684 algs = 0; 7685 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7686 algs++; 7687 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7688 algs++; 7689 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7690 algs++; 7691 if (algs > 1) { 7692 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7693 "selection"); 7694 goto skip_auth_type; 7695 } 7696 7697 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7698 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7699 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7700 type = NL80211_AUTHTYPE_SHARED_KEY; 7701 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7702 type = NL80211_AUTHTYPE_NETWORK_EAP; 7703 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7704 type = NL80211_AUTHTYPE_FT; 7705 else 7706 goto nla_put_failure; 7707 7708 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7709 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7710 7711skip_auth_type: 7712 if (params->wpa_proto) { 7713 enum nl80211_wpa_versions ver = 0; 7714 7715 if (params->wpa_proto & WPA_PROTO_WPA) 7716 ver |= NL80211_WPA_VERSION_1; 7717 if (params->wpa_proto & WPA_PROTO_RSN) 7718 ver |= NL80211_WPA_VERSION_2; 7719 7720 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7721 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7722 } 7723 7724 if (params->pairwise_suite != CIPHER_NONE) { 7725 int cipher; 7726 7727 switch (params->pairwise_suite) { 7728 case CIPHER_SMS4: 7729 cipher = WLAN_CIPHER_SUITE_SMS4; 7730 break; 7731 case CIPHER_WEP40: 7732 cipher = WLAN_CIPHER_SUITE_WEP40; 7733 break; 7734 case CIPHER_WEP104: 7735 cipher = WLAN_CIPHER_SUITE_WEP104; 7736 break; 7737 case CIPHER_CCMP: 7738 cipher = WLAN_CIPHER_SUITE_CCMP; 7739 break; 7740 case CIPHER_GCMP: 7741 cipher = WLAN_CIPHER_SUITE_GCMP; 7742 break; 7743 case CIPHER_TKIP: 7744 default: 7745 cipher = WLAN_CIPHER_SUITE_TKIP; 7746 break; 7747 } 7748 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7749 } 7750 7751 if (params->group_suite != CIPHER_NONE) { 7752 int cipher; 7753 7754 switch (params->group_suite) { 7755 case CIPHER_SMS4: 7756 cipher = WLAN_CIPHER_SUITE_SMS4; 7757 break; 7758 case CIPHER_WEP40: 7759 cipher = WLAN_CIPHER_SUITE_WEP40; 7760 break; 7761 case CIPHER_WEP104: 7762 cipher = WLAN_CIPHER_SUITE_WEP104; 7763 break; 7764 case CIPHER_CCMP: 7765 cipher = WLAN_CIPHER_SUITE_CCMP; 7766 break; 7767 case CIPHER_GCMP: 7768 cipher = WLAN_CIPHER_SUITE_GCMP; 7769 break; 7770 case CIPHER_TKIP: 7771 default: 7772 cipher = WLAN_CIPHER_SUITE_TKIP; 7773 break; 7774 } 7775 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7776 } 7777 7778 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7779 params->key_mgmt_suite == KEY_MGMT_PSK || 7780 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7781 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7782 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7783 int mgmt = WLAN_AKM_SUITE_PSK; 7784 7785 switch (params->key_mgmt_suite) { 7786 case KEY_MGMT_CCKM: 7787 mgmt = WLAN_AKM_SUITE_CCKM; 7788 break; 7789 case KEY_MGMT_802_1X: 7790 mgmt = WLAN_AKM_SUITE_8021X; 7791 break; 7792 case KEY_MGMT_FT_802_1X: 7793 mgmt = WLAN_AKM_SUITE_FT_8021X; 7794 break; 7795 case KEY_MGMT_FT_PSK: 7796 mgmt = WLAN_AKM_SUITE_FT_PSK; 7797 break; 7798 case KEY_MGMT_PSK: 7799 default: 7800 mgmt = WLAN_AKM_SUITE_PSK; 7801 break; 7802 } 7803 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7804 } 7805 7806#ifdef CONFIG_IEEE80211W 7807 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7808 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7809#endif /* CONFIG_IEEE80211W */ 7810 7811 if (params->disable_ht) 7812 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7813 7814 if (params->htcaps && params->htcaps_mask) { 7815 int sz = sizeof(struct ieee80211_ht_capabilities); 7816 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7817 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7818 params->htcaps_mask); 7819 } 7820 7821#ifdef CONFIG_VHT_OVERRIDES 7822 if (params->disable_vht) { 7823 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7824 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7825 } 7826 7827 if (params->vhtcaps && params->vhtcaps_mask) { 7828 int sz = sizeof(struct ieee80211_vht_capabilities); 7829 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7830 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7831 params->vhtcaps_mask); 7832 } 7833#endif /* CONFIG_VHT_OVERRIDES */ 7834 7835 ret = nl80211_set_conn_keys(params, msg); 7836 if (ret) 7837 goto nla_put_failure; 7838 7839 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7840 msg = NULL; 7841 if (ret) { 7842 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7843 "(%s)", ret, strerror(-ret)); 7844 goto nla_put_failure; 7845 } 7846 ret = 0; 7847 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7848 7849nla_put_failure: 7850 nlmsg_free(msg); 7851 return ret; 7852 7853} 7854 7855 7856static int wpa_driver_nl80211_connect( 7857 struct wpa_driver_nl80211_data *drv, 7858 struct wpa_driver_associate_params *params) 7859{ 7860 int ret = wpa_driver_nl80211_try_connect(drv, params); 7861 if (ret == -EALREADY) { 7862 /* 7863 * cfg80211 does not currently accept new connections if 7864 * we are already connected. As a workaround, force 7865 * disconnection and try again. 7866 */ 7867 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7868 "disconnecting before reassociation " 7869 "attempt"); 7870 if (wpa_driver_nl80211_disconnect( 7871 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7872 return -1; 7873 ret = wpa_driver_nl80211_try_connect(drv, params); 7874 } 7875 return ret; 7876} 7877 7878 7879static int wpa_driver_nl80211_associate( 7880 void *priv, struct wpa_driver_associate_params *params) 7881{ 7882 struct i802_bss *bss = priv; 7883 struct wpa_driver_nl80211_data *drv = bss->drv; 7884 int ret = -1; 7885 struct nl_msg *msg; 7886 7887 if (params->mode == IEEE80211_MODE_AP) 7888 return wpa_driver_nl80211_ap(drv, params); 7889 7890 if (params->mode == IEEE80211_MODE_IBSS) 7891 return wpa_driver_nl80211_ibss(drv, params); 7892 7893 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7894 enum nl80211_iftype nlmode = params->p2p ? 7895 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7896 7897 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7898 return -1; 7899 return wpa_driver_nl80211_connect(drv, params); 7900 } 7901 7902 nl80211_mark_disconnected(drv); 7903 7904 msg = nlmsg_alloc(); 7905 if (!msg) 7906 return -1; 7907 7908 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7909 drv->ifindex); 7910 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7911 7912 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7913 if (params->bssid) { 7914 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7915 MAC2STR(params->bssid)); 7916 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7917 } 7918 if (params->freq) { 7919 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7920 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7921 drv->assoc_freq = params->freq; 7922 } else 7923 drv->assoc_freq = 0; 7924 if (params->bg_scan_period >= 0) { 7925 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7926 params->bg_scan_period); 7927 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7928 params->bg_scan_period); 7929 } 7930 if (params->ssid) { 7931 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7932 params->ssid, params->ssid_len); 7933 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7934 params->ssid); 7935 if (params->ssid_len > sizeof(drv->ssid)) 7936 goto nla_put_failure; 7937 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7938 drv->ssid_len = params->ssid_len; 7939 } 7940 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7941 if (params->wpa_ie) 7942 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7943 params->wpa_ie); 7944 7945 if (params->pairwise_suite != CIPHER_NONE) { 7946 int cipher; 7947 7948 switch (params->pairwise_suite) { 7949 case CIPHER_WEP40: 7950 cipher = WLAN_CIPHER_SUITE_WEP40; 7951 break; 7952 case CIPHER_WEP104: 7953 cipher = WLAN_CIPHER_SUITE_WEP104; 7954 break; 7955 case CIPHER_CCMP: 7956 cipher = WLAN_CIPHER_SUITE_CCMP; 7957 break; 7958 case CIPHER_GCMP: 7959 cipher = WLAN_CIPHER_SUITE_GCMP; 7960 break; 7961 case CIPHER_TKIP: 7962 default: 7963 cipher = WLAN_CIPHER_SUITE_TKIP; 7964 break; 7965 } 7966 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7967 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7968 } 7969 7970 if (params->group_suite != CIPHER_NONE) { 7971 int cipher; 7972 7973 switch (params->group_suite) { 7974 case CIPHER_WEP40: 7975 cipher = WLAN_CIPHER_SUITE_WEP40; 7976 break; 7977 case CIPHER_WEP104: 7978 cipher = WLAN_CIPHER_SUITE_WEP104; 7979 break; 7980 case CIPHER_CCMP: 7981 cipher = WLAN_CIPHER_SUITE_CCMP; 7982 break; 7983 case CIPHER_GCMP: 7984 cipher = WLAN_CIPHER_SUITE_GCMP; 7985 break; 7986 case CIPHER_TKIP: 7987 default: 7988 cipher = WLAN_CIPHER_SUITE_TKIP; 7989 break; 7990 } 7991 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7992 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7993 } 7994 7995#ifdef CONFIG_IEEE80211W 7996 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7997 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7998#endif /* CONFIG_IEEE80211W */ 7999 8000 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8001 8002 if (params->prev_bssid) { 8003 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8004 MAC2STR(params->prev_bssid)); 8005 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8006 params->prev_bssid); 8007 } 8008 8009 if (params->disable_ht) 8010 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8011 8012 if (params->htcaps && params->htcaps_mask) { 8013 int sz = sizeof(struct ieee80211_ht_capabilities); 8014 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8015 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8016 params->htcaps_mask); 8017 } 8018 8019#ifdef CONFIG_VHT_OVERRIDES 8020 if (params->disable_vht) { 8021 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8022 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8023 } 8024 8025 if (params->vhtcaps && params->vhtcaps_mask) { 8026 int sz = sizeof(struct ieee80211_vht_capabilities); 8027 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8028 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8029 params->vhtcaps_mask); 8030 } 8031#endif /* CONFIG_VHT_OVERRIDES */ 8032 8033 if (params->p2p) 8034 wpa_printf(MSG_DEBUG, " * P2P group"); 8035 8036 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8037 msg = NULL; 8038 if (ret) { 8039 wpa_dbg(drv->ctx, MSG_DEBUG, 8040 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8041 ret, strerror(-ret)); 8042 nl80211_dump_scan(drv); 8043 goto nla_put_failure; 8044 } 8045 ret = 0; 8046 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8047 "successfully"); 8048 8049nla_put_failure: 8050 nlmsg_free(msg); 8051 return ret; 8052} 8053 8054 8055static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8056 int ifindex, enum nl80211_iftype mode) 8057{ 8058 struct nl_msg *msg; 8059 int ret = -ENOBUFS; 8060 8061 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8062 ifindex, mode, nl80211_iftype_str(mode)); 8063 8064 msg = nlmsg_alloc(); 8065 if (!msg) 8066 return -ENOMEM; 8067 8068 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8069 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8070 goto nla_put_failure; 8071 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8072 8073 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8074 msg = NULL; 8075 if (!ret) 8076 return 0; 8077nla_put_failure: 8078 nlmsg_free(msg); 8079 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8080 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8081 return ret; 8082} 8083 8084 8085static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8086 enum nl80211_iftype nlmode) 8087{ 8088 struct wpa_driver_nl80211_data *drv = bss->drv; 8089 int ret = -1; 8090 int i; 8091 int was_ap = is_ap_interface(drv->nlmode); 8092 int res; 8093 8094 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8095 if (res && nlmode == nl80211_get_ifmode(bss)) 8096 res = 0; 8097 8098 if (res == 0) { 8099 drv->nlmode = nlmode; 8100 ret = 0; 8101 goto done; 8102 } 8103 8104 if (res == -ENODEV) 8105 return -1; 8106 8107 if (nlmode == drv->nlmode) { 8108 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8109 "requested mode - ignore error"); 8110 ret = 0; 8111 goto done; /* Already in the requested mode */ 8112 } 8113 8114 /* mac80211 doesn't allow mode changes while the device is up, so 8115 * take the device down, try to set the mode again, and bring the 8116 * device back up. 8117 */ 8118 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8119 "interface down"); 8120 for (i = 0; i < 10; i++) { 8121 res = i802_set_iface_flags(bss, 0); 8122 if (res == -EACCES || res == -ENODEV) 8123 break; 8124 if (res == 0) { 8125 /* Try to set the mode again while the interface is 8126 * down */ 8127 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8128 if (ret == -EACCES) 8129 break; 8130 res = i802_set_iface_flags(bss, 1); 8131 if (res && !ret) 8132 ret = -1; 8133 else if (ret != -EBUSY) 8134 break; 8135 } else 8136 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8137 "interface down"); 8138 os_sleep(0, 100000); 8139 } 8140 8141 if (!ret) { 8142 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8143 "interface is down"); 8144 drv->nlmode = nlmode; 8145 drv->ignore_if_down_event = 1; 8146 } 8147 8148done: 8149 if (ret) { 8150 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8151 "from %d failed", nlmode, drv->nlmode); 8152 return ret; 8153 } 8154 8155 if (is_p2p_net_interface(nlmode)) 8156 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8157 else if (drv->disabled_11b_rates) 8158 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8159 8160 if (is_ap_interface(nlmode)) { 8161 nl80211_mgmt_unsubscribe(bss, "start AP"); 8162 /* Setup additional AP mode functionality if needed */ 8163 if (nl80211_setup_ap(bss)) 8164 return -1; 8165 } else if (was_ap) { 8166 /* Remove additional AP mode functionality */ 8167 nl80211_teardown_ap(bss); 8168 } else { 8169 nl80211_mgmt_unsubscribe(bss, "mode change"); 8170 } 8171 8172 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8173 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8174 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8175 "frame processing - ignore for now"); 8176 8177 return 0; 8178} 8179 8180 8181static int wpa_driver_nl80211_get_capa(void *priv, 8182 struct wpa_driver_capa *capa) 8183{ 8184 struct i802_bss *bss = priv; 8185 struct wpa_driver_nl80211_data *drv = bss->drv; 8186 if (!drv->has_capability) 8187 return -1; 8188 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8189 if (drv->extended_capa && drv->extended_capa_mask) { 8190 capa->extended_capa = drv->extended_capa; 8191 capa->extended_capa_mask = drv->extended_capa_mask; 8192 capa->extended_capa_len = drv->extended_capa_len; 8193 } 8194 8195 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8196 !drv->allow_p2p_device) { 8197 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8198 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8199 } 8200 8201 return 0; 8202} 8203 8204 8205static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8206{ 8207 struct i802_bss *bss = priv; 8208 struct wpa_driver_nl80211_data *drv = bss->drv; 8209 8210 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8211 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8212 drv->operstate = state; 8213 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8214 state ? IF_OPER_UP : IF_OPER_DORMANT); 8215} 8216 8217 8218static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8219{ 8220 struct i802_bss *bss = priv; 8221 struct wpa_driver_nl80211_data *drv = bss->drv; 8222 struct nl_msg *msg; 8223 struct nl80211_sta_flag_update upd; 8224 8225 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8226 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8227 8228 msg = nlmsg_alloc(); 8229 if (!msg) 8230 return -ENOMEM; 8231 8232 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8233 8234 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8235 if_nametoindex(bss->ifname)); 8236 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8237 8238 os_memset(&upd, 0, sizeof(upd)); 8239 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8240 if (authorized) 8241 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8242 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8243 8244 return send_and_recv_msgs(drv, msg, NULL, NULL); 8245 nla_put_failure: 8246 nlmsg_free(msg); 8247 return -ENOBUFS; 8248} 8249 8250 8251/* Set kernel driver on given frequency (MHz) */ 8252static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8253{ 8254 struct i802_bss *bss = priv; 8255 return wpa_driver_nl80211_set_freq(bss, freq); 8256} 8257 8258 8259#if defined(HOSTAPD) || defined(CONFIG_AP) 8260 8261static inline int min_int(int a, int b) 8262{ 8263 if (a < b) 8264 return a; 8265 return b; 8266} 8267 8268 8269static int get_key_handler(struct nl_msg *msg, void *arg) 8270{ 8271 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8272 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8273 8274 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8275 genlmsg_attrlen(gnlh, 0), NULL); 8276 8277 /* 8278 * TODO: validate the key index and mac address! 8279 * Otherwise, there's a race condition as soon as 8280 * the kernel starts sending key notifications. 8281 */ 8282 8283 if (tb[NL80211_ATTR_KEY_SEQ]) 8284 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8285 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8286 return NL_SKIP; 8287} 8288 8289 8290static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8291 int idx, u8 *seq) 8292{ 8293 struct i802_bss *bss = priv; 8294 struct wpa_driver_nl80211_data *drv = bss->drv; 8295 struct nl_msg *msg; 8296 8297 msg = nlmsg_alloc(); 8298 if (!msg) 8299 return -ENOMEM; 8300 8301 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8302 8303 if (addr) 8304 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8305 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8306 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8307 8308 memset(seq, 0, 6); 8309 8310 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8311 nla_put_failure: 8312 nlmsg_free(msg); 8313 return -ENOBUFS; 8314} 8315 8316 8317static int i802_set_rts(void *priv, int rts) 8318{ 8319 struct i802_bss *bss = priv; 8320 struct wpa_driver_nl80211_data *drv = bss->drv; 8321 struct nl_msg *msg; 8322 int ret = -ENOBUFS; 8323 u32 val; 8324 8325 msg = nlmsg_alloc(); 8326 if (!msg) 8327 return -ENOMEM; 8328 8329 if (rts >= 2347) 8330 val = (u32) -1; 8331 else 8332 val = rts; 8333 8334 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8336 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8337 8338 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8339 msg = NULL; 8340 if (!ret) 8341 return 0; 8342nla_put_failure: 8343 nlmsg_free(msg); 8344 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8345 "%d (%s)", rts, ret, strerror(-ret)); 8346 return ret; 8347} 8348 8349 8350static int i802_set_frag(void *priv, int frag) 8351{ 8352 struct i802_bss *bss = priv; 8353 struct wpa_driver_nl80211_data *drv = bss->drv; 8354 struct nl_msg *msg; 8355 int ret = -ENOBUFS; 8356 u32 val; 8357 8358 msg = nlmsg_alloc(); 8359 if (!msg) 8360 return -ENOMEM; 8361 8362 if (frag >= 2346) 8363 val = (u32) -1; 8364 else 8365 val = frag; 8366 8367 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8368 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8369 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8370 8371 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8372 msg = NULL; 8373 if (!ret) 8374 return 0; 8375nla_put_failure: 8376 nlmsg_free(msg); 8377 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8378 "%d: %d (%s)", frag, ret, strerror(-ret)); 8379 return ret; 8380} 8381 8382 8383static int i802_flush(void *priv) 8384{ 8385 struct i802_bss *bss = priv; 8386 struct wpa_driver_nl80211_data *drv = bss->drv; 8387 struct nl_msg *msg; 8388 int res; 8389 8390 msg = nlmsg_alloc(); 8391 if (!msg) 8392 return -1; 8393 8394 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8395 8396 /* 8397 * XXX: FIX! this needs to flush all VLANs too 8398 */ 8399 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8400 if_nametoindex(bss->ifname)); 8401 8402 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8403 if (res) { 8404 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8405 "(%s)", res, strerror(-res)); 8406 } 8407 return res; 8408 nla_put_failure: 8409 nlmsg_free(msg); 8410 return -ENOBUFS; 8411} 8412 8413#endif /* HOSTAPD || CONFIG_AP */ 8414 8415 8416static int get_sta_handler(struct nl_msg *msg, void *arg) 8417{ 8418 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8419 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8420 struct hostap_sta_driver_data *data = arg; 8421 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8422 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8423 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8424 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8425 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8426 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8427 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8428 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8429 }; 8430 8431 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8432 genlmsg_attrlen(gnlh, 0), NULL); 8433 8434 /* 8435 * TODO: validate the interface and mac address! 8436 * Otherwise, there's a race condition as soon as 8437 * the kernel starts sending station notifications. 8438 */ 8439 8440 if (!tb[NL80211_ATTR_STA_INFO]) { 8441 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8442 return NL_SKIP; 8443 } 8444 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8445 tb[NL80211_ATTR_STA_INFO], 8446 stats_policy)) { 8447 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8448 return NL_SKIP; 8449 } 8450 8451 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8452 data->inactive_msec = 8453 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8454 if (stats[NL80211_STA_INFO_RX_BYTES]) 8455 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8456 if (stats[NL80211_STA_INFO_TX_BYTES]) 8457 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8458 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8459 data->rx_packets = 8460 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8461 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8462 data->tx_packets = 8463 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8464 if (stats[NL80211_STA_INFO_TX_FAILED]) 8465 data->tx_retry_failed = 8466 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8467 8468 return NL_SKIP; 8469} 8470 8471static int i802_read_sta_data(struct i802_bss *bss, 8472 struct hostap_sta_driver_data *data, 8473 const u8 *addr) 8474{ 8475 struct wpa_driver_nl80211_data *drv = bss->drv; 8476 struct nl_msg *msg; 8477 8478 os_memset(data, 0, sizeof(*data)); 8479 msg = nlmsg_alloc(); 8480 if (!msg) 8481 return -ENOMEM; 8482 8483 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8484 8485 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8486 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8487 8488 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8489 nla_put_failure: 8490 nlmsg_free(msg); 8491 return -ENOBUFS; 8492} 8493 8494 8495#if defined(HOSTAPD) || defined(CONFIG_AP) 8496 8497static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8498 int cw_min, int cw_max, int burst_time) 8499{ 8500 struct i802_bss *bss = priv; 8501 struct wpa_driver_nl80211_data *drv = bss->drv; 8502 struct nl_msg *msg; 8503 struct nlattr *txq, *params; 8504 8505 msg = nlmsg_alloc(); 8506 if (!msg) 8507 return -1; 8508 8509 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8510 8511 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8512 8513 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8514 if (!txq) 8515 goto nla_put_failure; 8516 8517 /* We are only sending parameters for a single TXQ at a time */ 8518 params = nla_nest_start(msg, 1); 8519 if (!params) 8520 goto nla_put_failure; 8521 8522 switch (queue) { 8523 case 0: 8524 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8525 break; 8526 case 1: 8527 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8528 break; 8529 case 2: 8530 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8531 break; 8532 case 3: 8533 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8534 break; 8535 } 8536 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8537 * 32 usec, so need to convert the value here. */ 8538 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8539 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8540 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8541 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8542 8543 nla_nest_end(msg, params); 8544 8545 nla_nest_end(msg, txq); 8546 8547 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8548 return 0; 8549 msg = NULL; 8550 nla_put_failure: 8551 nlmsg_free(msg); 8552 return -1; 8553} 8554 8555 8556static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8557 const char *ifname, int vlan_id) 8558{ 8559 struct wpa_driver_nl80211_data *drv = bss->drv; 8560 struct nl_msg *msg; 8561 int ret = -ENOBUFS; 8562 8563 msg = nlmsg_alloc(); 8564 if (!msg) 8565 return -ENOMEM; 8566 8567 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8568 8569 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8570 if_nametoindex(bss->ifname)); 8571 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8572 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8573 if_nametoindex(ifname)); 8574 8575 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8576 msg = NULL; 8577 if (ret < 0) { 8578 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8579 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8580 MAC2STR(addr), ifname, vlan_id, ret, 8581 strerror(-ret)); 8582 } 8583 nla_put_failure: 8584 nlmsg_free(msg); 8585 return ret; 8586} 8587 8588 8589static int i802_get_inact_sec(void *priv, const u8 *addr) 8590{ 8591 struct hostap_sta_driver_data data; 8592 int ret; 8593 8594 data.inactive_msec = (unsigned long) -1; 8595 ret = i802_read_sta_data(priv, &data, addr); 8596 if (ret || data.inactive_msec == (unsigned long) -1) 8597 return -1; 8598 return data.inactive_msec / 1000; 8599} 8600 8601 8602static int i802_sta_clear_stats(void *priv, const u8 *addr) 8603{ 8604#if 0 8605 /* TODO */ 8606#endif 8607 return 0; 8608} 8609 8610 8611static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8612 int reason) 8613{ 8614 struct i802_bss *bss = priv; 8615 struct wpa_driver_nl80211_data *drv = bss->drv; 8616 struct ieee80211_mgmt mgmt; 8617 8618 if (drv->device_ap_sme) 8619 return wpa_driver_nl80211_sta_remove(bss, addr); 8620 8621 memset(&mgmt, 0, sizeof(mgmt)); 8622 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8623 WLAN_FC_STYPE_DEAUTH); 8624 memcpy(mgmt.da, addr, ETH_ALEN); 8625 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8626 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8627 mgmt.u.deauth.reason_code = host_to_le16(reason); 8628 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8629 IEEE80211_HDRLEN + 8630 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8631 0); 8632} 8633 8634 8635static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8636 int reason) 8637{ 8638 struct i802_bss *bss = priv; 8639 struct wpa_driver_nl80211_data *drv = bss->drv; 8640 struct ieee80211_mgmt mgmt; 8641 8642 if (drv->device_ap_sme) 8643 return wpa_driver_nl80211_sta_remove(bss, addr); 8644 8645 memset(&mgmt, 0, sizeof(mgmt)); 8646 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8647 WLAN_FC_STYPE_DISASSOC); 8648 memcpy(mgmt.da, addr, ETH_ALEN); 8649 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8650 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8651 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8652 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8653 IEEE80211_HDRLEN + 8654 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8655 0); 8656} 8657 8658#endif /* HOSTAPD || CONFIG_AP */ 8659 8660#ifdef HOSTAPD 8661 8662static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8663{ 8664 int i; 8665 int *old; 8666 8667 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8668 ifidx); 8669 for (i = 0; i < drv->num_if_indices; i++) { 8670 if (drv->if_indices[i] == 0) { 8671 drv->if_indices[i] = ifidx; 8672 return; 8673 } 8674 } 8675 8676 if (drv->if_indices != drv->default_if_indices) 8677 old = drv->if_indices; 8678 else 8679 old = NULL; 8680 8681 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8682 sizeof(int)); 8683 if (!drv->if_indices) { 8684 if (!old) 8685 drv->if_indices = drv->default_if_indices; 8686 else 8687 drv->if_indices = old; 8688 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8689 "interfaces"); 8690 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8691 return; 8692 } else if (!old) 8693 os_memcpy(drv->if_indices, drv->default_if_indices, 8694 sizeof(drv->default_if_indices)); 8695 drv->if_indices[drv->num_if_indices] = ifidx; 8696 drv->num_if_indices++; 8697} 8698 8699 8700static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8701{ 8702 int i; 8703 8704 for (i = 0; i < drv->num_if_indices; i++) { 8705 if (drv->if_indices[i] == ifidx) { 8706 drv->if_indices[i] = 0; 8707 break; 8708 } 8709 } 8710} 8711 8712 8713static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8714{ 8715 int i; 8716 8717 for (i = 0; i < drv->num_if_indices; i++) 8718 if (drv->if_indices[i] == ifidx) 8719 return 1; 8720 8721 return 0; 8722} 8723 8724 8725static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8726 const char *bridge_ifname, char *ifname_wds) 8727{ 8728 struct i802_bss *bss = priv; 8729 struct wpa_driver_nl80211_data *drv = bss->drv; 8730 char name[IFNAMSIZ + 1]; 8731 8732 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8733 if (ifname_wds) 8734 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8735 8736 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8737 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8738 if (val) { 8739 if (!if_nametoindex(name)) { 8740 if (nl80211_create_iface(drv, name, 8741 NL80211_IFTYPE_AP_VLAN, 8742 bss->addr, 1, NULL, NULL) < 0) 8743 return -1; 8744 if (bridge_ifname && 8745 linux_br_add_if(drv->global->ioctl_sock, 8746 bridge_ifname, name) < 0) 8747 return -1; 8748 } 8749 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8750 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8751 "interface %s up", name); 8752 } 8753 return i802_set_sta_vlan(priv, addr, name, 0); 8754 } else { 8755 if (bridge_ifname) 8756 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8757 name); 8758 8759 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8760 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8761 name); 8762 } 8763} 8764 8765 8766static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8767{ 8768 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8769 struct sockaddr_ll lladdr; 8770 unsigned char buf[3000]; 8771 int len; 8772 socklen_t fromlen = sizeof(lladdr); 8773 8774 len = recvfrom(sock, buf, sizeof(buf), 0, 8775 (struct sockaddr *)&lladdr, &fromlen); 8776 if (len < 0) { 8777 perror("recv"); 8778 return; 8779 } 8780 8781 if (have_ifidx(drv, lladdr.sll_ifindex)) 8782 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8783} 8784 8785 8786static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8787 struct i802_bss *bss, 8788 const char *brname, const char *ifname) 8789{ 8790 int ifindex; 8791 char in_br[IFNAMSIZ]; 8792 8793 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8794 ifindex = if_nametoindex(brname); 8795 if (ifindex == 0) { 8796 /* 8797 * Bridge was configured, but the bridge device does 8798 * not exist. Try to add it now. 8799 */ 8800 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8801 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8802 "bridge interface %s: %s", 8803 brname, strerror(errno)); 8804 return -1; 8805 } 8806 bss->added_bridge = 1; 8807 add_ifidx(drv, if_nametoindex(brname)); 8808 } 8809 8810 if (linux_br_get(in_br, ifname) == 0) { 8811 if (os_strcmp(in_br, brname) == 0) 8812 return 0; /* already in the bridge */ 8813 8814 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8815 "bridge %s", ifname, in_br); 8816 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8817 0) { 8818 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8819 "remove interface %s from bridge " 8820 "%s: %s", 8821 ifname, brname, strerror(errno)); 8822 return -1; 8823 } 8824 } 8825 8826 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8827 ifname, brname); 8828 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8829 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8830 "into bridge %s: %s", 8831 ifname, brname, strerror(errno)); 8832 return -1; 8833 } 8834 bss->added_if_into_bridge = 1; 8835 8836 return 0; 8837} 8838 8839 8840static void *i802_init(struct hostapd_data *hapd, 8841 struct wpa_init_params *params) 8842{ 8843 struct wpa_driver_nl80211_data *drv; 8844 struct i802_bss *bss; 8845 size_t i; 8846 char brname[IFNAMSIZ]; 8847 int ifindex, br_ifindex; 8848 int br_added = 0; 8849 8850 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8851 params->global_priv); 8852 if (bss == NULL) 8853 return NULL; 8854 8855 drv = bss->drv; 8856 drv->nlmode = NL80211_IFTYPE_AP; 8857 drv->eapol_sock = -1; 8858 8859 if (linux_br_get(brname, params->ifname) == 0) { 8860 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8861 params->ifname, brname); 8862 br_ifindex = if_nametoindex(brname); 8863 } else { 8864 brname[0] = '\0'; 8865 br_ifindex = 0; 8866 } 8867 8868 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8869 drv->if_indices = drv->default_if_indices; 8870 for (i = 0; i < params->num_bridge; i++) { 8871 if (params->bridge[i]) { 8872 ifindex = if_nametoindex(params->bridge[i]); 8873 if (ifindex) 8874 add_ifidx(drv, ifindex); 8875 if (ifindex == br_ifindex) 8876 br_added = 1; 8877 } 8878 } 8879 if (!br_added && br_ifindex && 8880 (params->num_bridge == 0 || !params->bridge[0])) 8881 add_ifidx(drv, br_ifindex); 8882 8883 /* start listening for EAPOL on the default AP interface */ 8884 add_ifidx(drv, drv->ifindex); 8885 8886 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8887 goto failed; 8888 8889 if (params->bssid) { 8890 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8891 params->bssid)) 8892 goto failed; 8893 } 8894 8895 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8896 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8897 "into AP mode", bss->ifname); 8898 goto failed; 8899 } 8900 8901 if (params->num_bridge && params->bridge[0] && 8902 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8903 goto failed; 8904 8905 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8906 goto failed; 8907 8908 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8909 if (drv->eapol_sock < 0) { 8910 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8911 goto failed; 8912 } 8913 8914 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8915 { 8916 printf("Could not register read socket for eapol\n"); 8917 goto failed; 8918 } 8919 8920 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8921 params->own_addr)) 8922 goto failed; 8923 8924 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8925 8926 return bss; 8927 8928failed: 8929 wpa_driver_nl80211_deinit(bss); 8930 return NULL; 8931} 8932 8933 8934static void i802_deinit(void *priv) 8935{ 8936 struct i802_bss *bss = priv; 8937 wpa_driver_nl80211_deinit(bss); 8938} 8939 8940#endif /* HOSTAPD */ 8941 8942 8943static enum nl80211_iftype wpa_driver_nl80211_if_type( 8944 enum wpa_driver_if_type type) 8945{ 8946 switch (type) { 8947 case WPA_IF_STATION: 8948 return NL80211_IFTYPE_STATION; 8949 case WPA_IF_P2P_CLIENT: 8950 case WPA_IF_P2P_GROUP: 8951 return NL80211_IFTYPE_P2P_CLIENT; 8952 case WPA_IF_AP_VLAN: 8953 return NL80211_IFTYPE_AP_VLAN; 8954 case WPA_IF_AP_BSS: 8955 return NL80211_IFTYPE_AP; 8956 case WPA_IF_P2P_GO: 8957 return NL80211_IFTYPE_P2P_GO; 8958 case WPA_IF_P2P_DEVICE: 8959 return NL80211_IFTYPE_P2P_DEVICE; 8960 } 8961 return -1; 8962} 8963 8964 8965#ifdef CONFIG_P2P 8966 8967static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8968{ 8969 struct wpa_driver_nl80211_data *drv; 8970 dl_list_for_each(drv, &global->interfaces, 8971 struct wpa_driver_nl80211_data, list) { 8972 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8973 return 1; 8974 } 8975 return 0; 8976} 8977 8978 8979static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8980 u8 *new_addr) 8981{ 8982 unsigned int idx; 8983 8984 if (!drv->global) 8985 return -1; 8986 8987 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8988 for (idx = 0; idx < 64; idx++) { 8989 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8990 new_addr[0] ^= idx << 2; 8991 if (!nl80211_addr_in_use(drv->global, new_addr)) 8992 break; 8993 } 8994 if (idx == 64) 8995 return -1; 8996 8997 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8998 MACSTR, MAC2STR(new_addr)); 8999 9000 return 0; 9001} 9002 9003#endif /* CONFIG_P2P */ 9004 9005 9006struct wdev_info { 9007 u64 wdev_id; 9008 int wdev_id_set; 9009 u8 macaddr[ETH_ALEN]; 9010}; 9011 9012static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9013{ 9014 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9015 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9016 struct wdev_info *wi = arg; 9017 9018 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9019 genlmsg_attrlen(gnlh, 0), NULL); 9020 if (tb[NL80211_ATTR_WDEV]) { 9021 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9022 wi->wdev_id_set = 1; 9023 } 9024 9025 if (tb[NL80211_ATTR_MAC]) 9026 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9027 ETH_ALEN); 9028 9029 return NL_SKIP; 9030} 9031 9032 9033static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9034 const char *ifname, const u8 *addr, 9035 void *bss_ctx, void **drv_priv, 9036 char *force_ifname, u8 *if_addr, 9037 const char *bridge) 9038{ 9039 enum nl80211_iftype nlmode; 9040 struct i802_bss *bss = priv; 9041 struct wpa_driver_nl80211_data *drv = bss->drv; 9042 int ifidx; 9043#ifdef HOSTAPD 9044 struct i802_bss *new_bss = NULL; 9045 9046 if (type == WPA_IF_AP_BSS) { 9047 new_bss = os_zalloc(sizeof(*new_bss)); 9048 if (new_bss == NULL) 9049 return -1; 9050 } 9051#endif /* HOSTAPD */ 9052 9053 if (addr) 9054 os_memcpy(if_addr, addr, ETH_ALEN); 9055 nlmode = wpa_driver_nl80211_if_type(type); 9056 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9057 struct wdev_info p2pdev_info; 9058 9059 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9060 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9061 0, nl80211_wdev_handler, 9062 &p2pdev_info); 9063 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9064 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9065 ifname); 9066 return -1; 9067 } 9068 9069 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9070 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9071 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9072 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9073 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9074 ifname, 9075 (long long unsigned int) p2pdev_info.wdev_id); 9076 } else { 9077 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9078 0, NULL, NULL); 9079 if (ifidx < 0) { 9080#ifdef HOSTAPD 9081 os_free(new_bss); 9082#endif /* HOSTAPD */ 9083 return -1; 9084 } 9085 } 9086 9087 if (!addr) { 9088 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9089 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9090 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9091 bss->ifname, if_addr) < 0) { 9092 nl80211_remove_iface(drv, ifidx); 9093 return -1; 9094 } 9095 } 9096 9097#ifdef CONFIG_P2P 9098 if (!addr && 9099 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9100 type == WPA_IF_P2P_GO)) { 9101 /* Enforce unique P2P Interface Address */ 9102 u8 new_addr[ETH_ALEN]; 9103 9104 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9105 new_addr) < 0) { 9106 nl80211_remove_iface(drv, ifidx); 9107 return -1; 9108 } 9109 if (nl80211_addr_in_use(drv->global, new_addr)) { 9110 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9111 "for P2P group interface"); 9112 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9113 nl80211_remove_iface(drv, ifidx); 9114 return -1; 9115 } 9116 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9117 new_addr) < 0) { 9118 nl80211_remove_iface(drv, ifidx); 9119 return -1; 9120 } 9121 } 9122 os_memcpy(if_addr, new_addr, ETH_ALEN); 9123 } 9124#endif /* CONFIG_P2P */ 9125 9126#ifdef HOSTAPD 9127 if (bridge && 9128 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9129 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9130 "interface %s to a bridge %s", ifname, bridge); 9131 nl80211_remove_iface(drv, ifidx); 9132 os_free(new_bss); 9133 return -1; 9134 } 9135 9136 if (type == WPA_IF_AP_BSS) { 9137 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9138 { 9139 nl80211_remove_iface(drv, ifidx); 9140 os_free(new_bss); 9141 return -1; 9142 } 9143 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9144 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9145 new_bss->ifindex = ifidx; 9146 new_bss->drv = drv; 9147 new_bss->next = drv->first_bss.next; 9148 new_bss->freq = drv->first_bss.freq; 9149 new_bss->ctx = bss_ctx; 9150 drv->first_bss.next = new_bss; 9151 if (drv_priv) 9152 *drv_priv = new_bss; 9153 nl80211_init_bss(new_bss); 9154 9155 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9156 if (nl80211_setup_ap(new_bss)) 9157 return -1; 9158 } 9159#endif /* HOSTAPD */ 9160 9161 if (drv->global) 9162 drv->global->if_add_ifindex = ifidx; 9163 9164 return 0; 9165} 9166 9167 9168static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9169 enum wpa_driver_if_type type, 9170 const char *ifname) 9171{ 9172 struct wpa_driver_nl80211_data *drv = bss->drv; 9173 int ifindex = if_nametoindex(ifname); 9174 9175 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9176 __func__, type, ifname, ifindex); 9177 if (ifindex <= 0) 9178 return -1; 9179 9180 nl80211_remove_iface(drv, ifindex); 9181 9182#ifdef HOSTAPD 9183 if (type != WPA_IF_AP_BSS) 9184 return 0; 9185 9186 if (bss->added_if_into_bridge) { 9187 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9188 bss->ifname) < 0) 9189 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9190 "interface %s from bridge %s: %s", 9191 bss->ifname, bss->brname, strerror(errno)); 9192 } 9193 if (bss->added_bridge) { 9194 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9195 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9196 "bridge %s: %s", 9197 bss->brname, strerror(errno)); 9198 } 9199 9200 if (bss != &drv->first_bss) { 9201 struct i802_bss *tbss; 9202 9203 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9204 if (tbss->next == bss) { 9205 tbss->next = bss->next; 9206 /* Unsubscribe management frames */ 9207 nl80211_teardown_ap(bss); 9208 nl80211_destroy_bss(bss); 9209 os_free(bss); 9210 bss = NULL; 9211 break; 9212 } 9213 } 9214 if (bss) 9215 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9216 "BSS %p in the list", __func__, bss); 9217 } 9218#endif /* HOSTAPD */ 9219 9220 return 0; 9221} 9222 9223 9224static int cookie_handler(struct nl_msg *msg, void *arg) 9225{ 9226 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9227 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9228 u64 *cookie = arg; 9229 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9230 genlmsg_attrlen(gnlh, 0), NULL); 9231 if (tb[NL80211_ATTR_COOKIE]) 9232 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9233 return NL_SKIP; 9234} 9235 9236 9237static int nl80211_send_frame_cmd(struct i802_bss *bss, 9238 unsigned int freq, unsigned int wait, 9239 const u8 *buf, size_t buf_len, 9240 u64 *cookie_out, int no_cck, int no_ack, 9241 int offchanok) 9242{ 9243 struct wpa_driver_nl80211_data *drv = bss->drv; 9244 struct nl_msg *msg; 9245 u64 cookie; 9246 int ret = -1; 9247 9248 msg = nlmsg_alloc(); 9249 if (!msg) 9250 return -1; 9251 9252 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9253 "no_ack=%d offchanok=%d", 9254 freq, wait, no_cck, no_ack, offchanok); 9255 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9256 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9257 9258 if (nl80211_set_iface_id(msg, bss) < 0) 9259 goto nla_put_failure; 9260 if (freq) 9261 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9262 if (wait) 9263 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9264 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9265 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9266 if (no_cck) 9267 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9268 if (no_ack) 9269 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9270 9271 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9272 9273 cookie = 0; 9274 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9275 msg = NULL; 9276 if (ret) { 9277 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9278 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9279 freq, wait); 9280 goto nla_put_failure; 9281 } 9282 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9283 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9284 (long long unsigned int) cookie); 9285 9286 if (cookie_out) 9287 *cookie_out = no_ack ? (u64) -1 : cookie; 9288 9289nla_put_failure: 9290 nlmsg_free(msg); 9291 return ret; 9292} 9293 9294 9295static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9296 unsigned int freq, 9297 unsigned int wait_time, 9298 const u8 *dst, const u8 *src, 9299 const u8 *bssid, 9300 const u8 *data, size_t data_len, 9301 int no_cck) 9302{ 9303 struct wpa_driver_nl80211_data *drv = bss->drv; 9304 int ret = -1; 9305 u8 *buf; 9306 struct ieee80211_hdr *hdr; 9307 9308 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9309 "freq=%u MHz wait=%d ms no_cck=%d)", 9310 drv->ifindex, freq, wait_time, no_cck); 9311 9312 buf = os_zalloc(24 + data_len); 9313 if (buf == NULL) 9314 return ret; 9315 os_memcpy(buf + 24, data, data_len); 9316 hdr = (struct ieee80211_hdr *) buf; 9317 hdr->frame_control = 9318 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9319 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9320 os_memcpy(hdr->addr2, src, ETH_ALEN); 9321 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9322 9323 if (is_ap_interface(drv->nlmode)) 9324 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9325 0, freq, no_cck, 1, 9326 wait_time); 9327 else 9328 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9329 24 + data_len, 9330 &drv->send_action_cookie, 9331 no_cck, 0, 1); 9332 9333 os_free(buf); 9334 return ret; 9335} 9336 9337 9338static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9339{ 9340 struct i802_bss *bss = priv; 9341 struct wpa_driver_nl80211_data *drv = bss->drv; 9342 struct nl_msg *msg; 9343 int ret; 9344 9345 msg = nlmsg_alloc(); 9346 if (!msg) 9347 return; 9348 9349 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9350 (long long unsigned int) drv->send_action_cookie); 9351 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9352 9353 if (nl80211_set_iface_id(msg, bss) < 0) 9354 goto nla_put_failure; 9355 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9356 9357 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9358 msg = NULL; 9359 if (ret) 9360 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9361 "(%s)", ret, strerror(-ret)); 9362 9363 nla_put_failure: 9364 nlmsg_free(msg); 9365} 9366 9367 9368static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9369 unsigned int duration) 9370{ 9371 struct i802_bss *bss = priv; 9372 struct wpa_driver_nl80211_data *drv = bss->drv; 9373 struct nl_msg *msg; 9374 int ret; 9375 u64 cookie; 9376 9377 msg = nlmsg_alloc(); 9378 if (!msg) 9379 return -1; 9380 9381 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9382 9383 if (nl80211_set_iface_id(msg, bss) < 0) 9384 goto nla_put_failure; 9385 9386 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9387 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9388 9389 cookie = 0; 9390 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9391 msg = NULL; 9392 if (ret == 0) { 9393 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9394 "0x%llx for freq=%u MHz duration=%u", 9395 (long long unsigned int) cookie, freq, duration); 9396 drv->remain_on_chan_cookie = cookie; 9397 drv->pending_remain_on_chan = 1; 9398 return 0; 9399 } 9400 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9401 "(freq=%d duration=%u): %d (%s)", 9402 freq, duration, ret, strerror(-ret)); 9403nla_put_failure: 9404 nlmsg_free(msg); 9405 return -1; 9406} 9407 9408 9409static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9410{ 9411 struct i802_bss *bss = priv; 9412 struct wpa_driver_nl80211_data *drv = bss->drv; 9413 struct nl_msg *msg; 9414 int ret; 9415 9416 if (!drv->pending_remain_on_chan) { 9417 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9418 "to cancel"); 9419 return -1; 9420 } 9421 9422 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9423 "0x%llx", 9424 (long long unsigned int) drv->remain_on_chan_cookie); 9425 9426 msg = nlmsg_alloc(); 9427 if (!msg) 9428 return -1; 9429 9430 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9431 9432 if (nl80211_set_iface_id(msg, bss) < 0) 9433 goto nla_put_failure; 9434 9435 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9436 9437 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9438 msg = NULL; 9439 if (ret == 0) 9440 return 0; 9441 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9442 "%d (%s)", ret, strerror(-ret)); 9443nla_put_failure: 9444 nlmsg_free(msg); 9445 return -1; 9446} 9447 9448 9449static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9450{ 9451 struct wpa_driver_nl80211_data *drv = bss->drv; 9452 9453 if (!report) { 9454 if (bss->nl_preq && drv->device_ap_sme && 9455 is_ap_interface(drv->nlmode)) { 9456 /* 9457 * Do not disable Probe Request reporting that was 9458 * enabled in nl80211_setup_ap(). 9459 */ 9460 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9461 "Probe Request reporting nl_preq=%p while " 9462 "in AP mode", bss->nl_preq); 9463 } else if (bss->nl_preq) { 9464 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9465 "reporting nl_preq=%p", bss->nl_preq); 9466 eloop_unregister_read_sock( 9467 nl_socket_get_fd(bss->nl_preq)); 9468 nl_destroy_handles(&bss->nl_preq); 9469 } 9470 return 0; 9471 } 9472 9473 if (bss->nl_preq) { 9474 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9475 "already on! nl_preq=%p", bss->nl_preq); 9476 return 0; 9477 } 9478 9479 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9480 if (bss->nl_preq == NULL) 9481 return -1; 9482 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9483 "reporting nl_preq=%p", bss->nl_preq); 9484 9485 if (nl80211_register_frame(bss, bss->nl_preq, 9486 (WLAN_FC_TYPE_MGMT << 2) | 9487 (WLAN_FC_STYPE_PROBE_REQ << 4), 9488 NULL, 0) < 0) 9489 goto out_err; 9490 9491 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9492 wpa_driver_nl80211_event_receive, bss->nl_cb, 9493 bss->nl_preq); 9494 9495 return 0; 9496 9497 out_err: 9498 nl_destroy_handles(&bss->nl_preq); 9499 return -1; 9500} 9501 9502 9503static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9504 int ifindex, int disabled) 9505{ 9506 struct nl_msg *msg; 9507 struct nlattr *bands, *band; 9508 int ret; 9509 9510 msg = nlmsg_alloc(); 9511 if (!msg) 9512 return -1; 9513 9514 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9515 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9516 9517 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9518 if (!bands) 9519 goto nla_put_failure; 9520 9521 /* 9522 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9523 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9524 * rates. All 5 GHz rates are left enabled. 9525 */ 9526 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9527 if (!band) 9528 goto nla_put_failure; 9529 if (disabled) { 9530 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9531 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9532 } 9533 nla_nest_end(msg, band); 9534 9535 nla_nest_end(msg, bands); 9536 9537 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9538 msg = NULL; 9539 if (ret) { 9540 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9541 "(%s)", ret, strerror(-ret)); 9542 } else 9543 drv->disabled_11b_rates = disabled; 9544 9545 return ret; 9546 9547nla_put_failure: 9548 nlmsg_free(msg); 9549 return -1; 9550} 9551 9552 9553static int wpa_driver_nl80211_deinit_ap(void *priv) 9554{ 9555 struct i802_bss *bss = priv; 9556 struct wpa_driver_nl80211_data *drv = bss->drv; 9557 if (!is_ap_interface(drv->nlmode)) 9558 return -1; 9559 wpa_driver_nl80211_del_beacon(drv); 9560 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9561} 9562 9563 9564static int wpa_driver_nl80211_stop_ap(void *priv) 9565{ 9566 struct i802_bss *bss = priv; 9567 struct wpa_driver_nl80211_data *drv = bss->drv; 9568 if (!is_ap_interface(drv->nlmode)) 9569 return -1; 9570 wpa_driver_nl80211_del_beacon(drv); 9571 bss->beacon_set = 0; 9572 return 0; 9573} 9574 9575 9576static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9577{ 9578 struct i802_bss *bss = priv; 9579 struct wpa_driver_nl80211_data *drv = bss->drv; 9580 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9581 return -1; 9582 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9583} 9584 9585 9586static void wpa_driver_nl80211_resume(void *priv) 9587{ 9588 struct i802_bss *bss = priv; 9589 9590 if (i802_set_iface_flags(bss, 1)) 9591 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9592} 9593 9594 9595static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9596 const u8 *ies, size_t ies_len) 9597{ 9598 struct i802_bss *bss = priv; 9599 struct wpa_driver_nl80211_data *drv = bss->drv; 9600 int ret; 9601 u8 *data, *pos; 9602 size_t data_len; 9603 const u8 *own_addr = bss->addr; 9604 9605 if (action != 1) { 9606 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9607 "action %d", action); 9608 return -1; 9609 } 9610 9611 /* 9612 * Action frame payload: 9613 * Category[1] = 6 (Fast BSS Transition) 9614 * Action[1] = 1 (Fast BSS Transition Request) 9615 * STA Address 9616 * Target AP Address 9617 * FT IEs 9618 */ 9619 9620 data_len = 2 + 2 * ETH_ALEN + ies_len; 9621 data = os_malloc(data_len); 9622 if (data == NULL) 9623 return -1; 9624 pos = data; 9625 *pos++ = 0x06; /* FT Action category */ 9626 *pos++ = action; 9627 os_memcpy(pos, own_addr, ETH_ALEN); 9628 pos += ETH_ALEN; 9629 os_memcpy(pos, target_ap, ETH_ALEN); 9630 pos += ETH_ALEN; 9631 os_memcpy(pos, ies, ies_len); 9632 9633 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9634 drv->bssid, own_addr, drv->bssid, 9635 data, data_len, 0); 9636 os_free(data); 9637 9638 return ret; 9639} 9640 9641 9642static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9643{ 9644 struct i802_bss *bss = priv; 9645 struct wpa_driver_nl80211_data *drv = bss->drv; 9646 struct nl_msg *msg; 9647 struct nlattr *cqm; 9648 int ret = -1; 9649 9650 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9651 "hysteresis=%d", threshold, hysteresis); 9652 9653 msg = nlmsg_alloc(); 9654 if (!msg) 9655 return -1; 9656 9657 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9658 9659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9660 9661 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9662 if (cqm == NULL) 9663 goto nla_put_failure; 9664 9665 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9666 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9667 nla_nest_end(msg, cqm); 9668 9669 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9670 msg = NULL; 9671 9672nla_put_failure: 9673 nlmsg_free(msg); 9674 return ret; 9675} 9676 9677 9678/* Converts nl80211_chan_width to a common format */ 9679static enum chan_width convert2width(int width) 9680{ 9681 switch (width) { 9682 case NL80211_CHAN_WIDTH_20_NOHT: 9683 return CHAN_WIDTH_20_NOHT; 9684 case NL80211_CHAN_WIDTH_20: 9685 return CHAN_WIDTH_20; 9686 case NL80211_CHAN_WIDTH_40: 9687 return CHAN_WIDTH_40; 9688 case NL80211_CHAN_WIDTH_80: 9689 return CHAN_WIDTH_80; 9690 case NL80211_CHAN_WIDTH_80P80: 9691 return CHAN_WIDTH_80P80; 9692 case NL80211_CHAN_WIDTH_160: 9693 return CHAN_WIDTH_160; 9694 } 9695 return CHAN_WIDTH_UNKNOWN; 9696} 9697 9698 9699static int get_channel_width(struct nl_msg *msg, void *arg) 9700{ 9701 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9702 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9703 struct wpa_signal_info *sig_change = arg; 9704 9705 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9706 genlmsg_attrlen(gnlh, 0), NULL); 9707 9708 sig_change->center_frq1 = -1; 9709 sig_change->center_frq2 = -1; 9710 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9711 9712 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9713 sig_change->chanwidth = convert2width( 9714 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9715 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9716 sig_change->center_frq1 = 9717 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9718 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9719 sig_change->center_frq2 = 9720 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9721 } 9722 9723 return NL_SKIP; 9724} 9725 9726 9727static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9728 struct wpa_signal_info *sig) 9729{ 9730 struct nl_msg *msg; 9731 9732 msg = nlmsg_alloc(); 9733 if (!msg) 9734 return -ENOMEM; 9735 9736 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9738 9739 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9740 9741nla_put_failure: 9742 nlmsg_free(msg); 9743 return -ENOBUFS; 9744} 9745 9746 9747static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9748{ 9749 struct i802_bss *bss = priv; 9750 struct wpa_driver_nl80211_data *drv = bss->drv; 9751 int res; 9752 9753 os_memset(si, 0, sizeof(*si)); 9754 res = nl80211_get_link_signal(drv, si); 9755 if (res != 0) 9756 return res; 9757 9758 res = nl80211_get_channel_width(drv, si); 9759 if (res != 0) 9760 return res; 9761 9762 return nl80211_get_link_noise(drv, si); 9763} 9764 9765 9766static int wpa_driver_nl80211_shared_freq(void *priv) 9767{ 9768 struct i802_bss *bss = priv; 9769 struct wpa_driver_nl80211_data *drv = bss->drv; 9770 struct wpa_driver_nl80211_data *driver; 9771 int freq = 0; 9772 9773 /* 9774 * If the same PHY is in connected state with some other interface, 9775 * then retrieve the assoc freq. 9776 */ 9777 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9778 drv->phyname); 9779 9780 dl_list_for_each(driver, &drv->global->interfaces, 9781 struct wpa_driver_nl80211_data, list) { 9782 if (drv == driver || 9783 os_strcmp(drv->phyname, driver->phyname) != 0 || 9784#ifdef ANDROID_P2P 9785 (!driver->associated && !is_ap_interface(driver->nlmode))) 9786#else 9787 !driver->associated) 9788#endif 9789 continue; 9790 9791 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9792 MACSTR, 9793 driver->phyname, driver->first_bss.ifname, 9794 MAC2STR(driver->first_bss.addr)); 9795 if (is_ap_interface(driver->nlmode)) 9796 freq = driver->first_bss.freq; 9797 else 9798 freq = nl80211_get_assoc_freq(driver); 9799 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9800 drv->phyname, freq); 9801 } 9802 9803 if (!freq) 9804 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9805 "PHY (%s) in associated state", drv->phyname); 9806 9807 return freq; 9808} 9809 9810 9811static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9812 int encrypt) 9813{ 9814 struct i802_bss *bss = priv; 9815 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9816 0, 0, 0, 0); 9817} 9818 9819 9820static int nl80211_set_param(void *priv, const char *param) 9821{ 9822 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9823 if (param == NULL) 9824 return 0; 9825 9826#ifdef CONFIG_P2P 9827 if (os_strstr(param, "use_p2p_group_interface=1")) { 9828 struct i802_bss *bss = priv; 9829 struct wpa_driver_nl80211_data *drv = bss->drv; 9830 9831 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9832 "interface"); 9833 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9834 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9835 } 9836 9837 if (os_strstr(param, "p2p_device=1")) { 9838 struct i802_bss *bss = priv; 9839 struct wpa_driver_nl80211_data *drv = bss->drv; 9840 drv->allow_p2p_device = 1; 9841 } 9842 9843#ifdef ANDROID_P2P 9844 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9845 struct i802_bss *bss = priv; 9846 struct wpa_driver_nl80211_data *drv = bss->drv; 9847 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9848 "concurrency"); 9849 drv->capa.num_multichan_concurrent = 2; 9850 } 9851#endif 9852#endif /* CONFIG_P2P */ 9853 9854 return 0; 9855} 9856 9857 9858static void * nl80211_global_init(void) 9859{ 9860 struct nl80211_global *global; 9861 struct netlink_config *cfg; 9862 9863 global = os_zalloc(sizeof(*global)); 9864 if (global == NULL) 9865 return NULL; 9866 global->ioctl_sock = -1; 9867 dl_list_init(&global->interfaces); 9868 global->if_add_ifindex = -1; 9869 9870 cfg = os_zalloc(sizeof(*cfg)); 9871 if (cfg == NULL) 9872 goto err; 9873 9874 cfg->ctx = global; 9875 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9876 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9877 global->netlink = netlink_init(cfg); 9878 if (global->netlink == NULL) { 9879 os_free(cfg); 9880 goto err; 9881 } 9882 9883 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9884 goto err; 9885 9886 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9887 if (global->ioctl_sock < 0) { 9888 perror("socket(PF_INET,SOCK_DGRAM)"); 9889 goto err; 9890 } 9891 9892 return global; 9893 9894err: 9895 nl80211_global_deinit(global); 9896 return NULL; 9897} 9898 9899 9900static void nl80211_global_deinit(void *priv) 9901{ 9902 struct nl80211_global *global = priv; 9903 if (global == NULL) 9904 return; 9905 if (!dl_list_empty(&global->interfaces)) { 9906 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9907 "nl80211_global_deinit", 9908 dl_list_len(&global->interfaces)); 9909 } 9910 9911 if (global->netlink) 9912 netlink_deinit(global->netlink); 9913 9914 nl_destroy_handles(&global->nl); 9915 9916 if (global->nl_event) { 9917 eloop_unregister_read_sock( 9918 nl_socket_get_fd(global->nl_event)); 9919 nl_destroy_handles(&global->nl_event); 9920 } 9921 9922 nl_cb_put(global->nl_cb); 9923 9924 if (global->ioctl_sock >= 0) 9925 close(global->ioctl_sock); 9926 9927 os_free(global); 9928} 9929 9930 9931static const char * nl80211_get_radio_name(void *priv) 9932{ 9933 struct i802_bss *bss = priv; 9934 struct wpa_driver_nl80211_data *drv = bss->drv; 9935 return drv->phyname; 9936} 9937 9938 9939static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9940 const u8 *pmkid) 9941{ 9942 struct nl_msg *msg; 9943 9944 msg = nlmsg_alloc(); 9945 if (!msg) 9946 return -ENOMEM; 9947 9948 nl80211_cmd(bss->drv, msg, 0, cmd); 9949 9950 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9951 if (pmkid) 9952 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9953 if (bssid) 9954 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9955 9956 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9957 nla_put_failure: 9958 nlmsg_free(msg); 9959 return -ENOBUFS; 9960} 9961 9962 9963static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9964{ 9965 struct i802_bss *bss = priv; 9966 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9967 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9968} 9969 9970 9971static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9972{ 9973 struct i802_bss *bss = priv; 9974 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9975 MAC2STR(bssid)); 9976 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9977} 9978 9979 9980static int nl80211_flush_pmkid(void *priv) 9981{ 9982 struct i802_bss *bss = priv; 9983 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9984 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9985} 9986 9987 9988static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9989 const u8 *replay_ctr) 9990{ 9991 struct i802_bss *bss = priv; 9992 struct wpa_driver_nl80211_data *drv = bss->drv; 9993 struct nlattr *replay_nested; 9994 struct nl_msg *msg; 9995 9996 msg = nlmsg_alloc(); 9997 if (!msg) 9998 return; 9999 10000 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10001 10002 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10003 10004 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10005 if (!replay_nested) 10006 goto nla_put_failure; 10007 10008 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10009 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10010 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10011 replay_ctr); 10012 10013 nla_nest_end(msg, replay_nested); 10014 10015 send_and_recv_msgs(drv, msg, NULL, NULL); 10016 return; 10017 nla_put_failure: 10018 nlmsg_free(msg); 10019} 10020 10021 10022static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10023 const u8 *addr, int qos) 10024{ 10025 /* send data frame to poll STA and check whether 10026 * this frame is ACKed */ 10027 struct { 10028 struct ieee80211_hdr hdr; 10029 u16 qos_ctl; 10030 } STRUCT_PACKED nulldata; 10031 size_t size; 10032 10033 /* Send data frame to poll STA and check whether this frame is ACKed */ 10034 10035 os_memset(&nulldata, 0, sizeof(nulldata)); 10036 10037 if (qos) { 10038 nulldata.hdr.frame_control = 10039 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10040 WLAN_FC_STYPE_QOS_NULL); 10041 size = sizeof(nulldata); 10042 } else { 10043 nulldata.hdr.frame_control = 10044 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10045 WLAN_FC_STYPE_NULLFUNC); 10046 size = sizeof(struct ieee80211_hdr); 10047 } 10048 10049 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10050 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10051 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10052 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10053 10054 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10055 0, 0) < 0) 10056 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10057 "send poll frame"); 10058} 10059 10060static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10061 int qos) 10062{ 10063 struct i802_bss *bss = priv; 10064 struct wpa_driver_nl80211_data *drv = bss->drv; 10065 struct nl_msg *msg; 10066 10067 if (!drv->poll_command_supported) { 10068 nl80211_send_null_frame(bss, own_addr, addr, qos); 10069 return; 10070 } 10071 10072 msg = nlmsg_alloc(); 10073 if (!msg) 10074 return; 10075 10076 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10077 10078 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10079 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10080 10081 send_and_recv_msgs(drv, msg, NULL, NULL); 10082 return; 10083 nla_put_failure: 10084 nlmsg_free(msg); 10085} 10086 10087 10088static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10089{ 10090 struct nl_msg *msg; 10091 10092 msg = nlmsg_alloc(); 10093 if (!msg) 10094 return -ENOMEM; 10095 10096 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10098 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10099 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10100 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10101nla_put_failure: 10102 nlmsg_free(msg); 10103 return -ENOBUFS; 10104} 10105 10106 10107static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10108 int ctwindow) 10109{ 10110 struct i802_bss *bss = priv; 10111 10112 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10113 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10114 10115 if (opp_ps != -1 || ctwindow != -1) 10116#ifdef ANDROID_P2P 10117 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10118#else 10119 return -1; /* Not yet supported */ 10120#endif 10121 10122 if (legacy_ps == -1) 10123 return 0; 10124 if (legacy_ps != 0 && legacy_ps != 1) 10125 return -1; /* Not yet supported */ 10126 10127 return nl80211_set_power_save(bss, legacy_ps); 10128} 10129 10130 10131static int nl80211_start_radar_detection(void *priv, int freq) 10132{ 10133 struct i802_bss *bss = priv; 10134 struct wpa_driver_nl80211_data *drv = bss->drv; 10135 struct nl_msg *msg; 10136 int ret; 10137 10138 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 10139 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10140 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10141 "detection"); 10142 return -1; 10143 } 10144 10145 msg = nlmsg_alloc(); 10146 if (!msg) 10147 return -1; 10148 10149 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10150 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10151 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10152 10153 /* only HT20 is supported at this point */ 10154 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 10155 10156 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10157 if (ret == 0) 10158 return 0; 10159 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10160 "%d (%s)", ret, strerror(-ret)); 10161nla_put_failure: 10162 return -1; 10163} 10164 10165#ifdef CONFIG_TDLS 10166 10167static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10168 u8 dialog_token, u16 status_code, 10169 const u8 *buf, size_t len) 10170{ 10171 struct i802_bss *bss = priv; 10172 struct wpa_driver_nl80211_data *drv = bss->drv; 10173 struct nl_msg *msg; 10174 10175 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10176 return -EOPNOTSUPP; 10177 10178 if (!dst) 10179 return -EINVAL; 10180 10181 msg = nlmsg_alloc(); 10182 if (!msg) 10183 return -ENOMEM; 10184 10185 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10186 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10187 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10188 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10189 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10190 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10191 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10192 10193 return send_and_recv_msgs(drv, msg, NULL, NULL); 10194 10195nla_put_failure: 10196 nlmsg_free(msg); 10197 return -ENOBUFS; 10198} 10199 10200 10201static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10202{ 10203 struct i802_bss *bss = priv; 10204 struct wpa_driver_nl80211_data *drv = bss->drv; 10205 struct nl_msg *msg; 10206 enum nl80211_tdls_operation nl80211_oper; 10207 10208 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10209 return -EOPNOTSUPP; 10210 10211 switch (oper) { 10212 case TDLS_DISCOVERY_REQ: 10213 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10214 break; 10215 case TDLS_SETUP: 10216 nl80211_oper = NL80211_TDLS_SETUP; 10217 break; 10218 case TDLS_TEARDOWN: 10219 nl80211_oper = NL80211_TDLS_TEARDOWN; 10220 break; 10221 case TDLS_ENABLE_LINK: 10222 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10223 break; 10224 case TDLS_DISABLE_LINK: 10225 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10226 break; 10227 case TDLS_ENABLE: 10228 return 0; 10229 case TDLS_DISABLE: 10230 return 0; 10231 default: 10232 return -EINVAL; 10233 } 10234 10235 msg = nlmsg_alloc(); 10236 if (!msg) 10237 return -ENOMEM; 10238 10239 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10240 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10241 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10242 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10243 10244 return send_and_recv_msgs(drv, msg, NULL, NULL); 10245 10246nla_put_failure: 10247 nlmsg_free(msg); 10248 return -ENOBUFS; 10249} 10250 10251#endif /* CONFIG TDLS */ 10252 10253 10254#ifdef ANDROID 10255 10256typedef struct android_wifi_priv_cmd { 10257 char *buf; 10258 int used_len; 10259 int total_len; 10260} android_wifi_priv_cmd; 10261 10262static int drv_errors = 0; 10263 10264static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10265{ 10266 drv_errors++; 10267 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10268 drv_errors = 0; 10269 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10270 } 10271} 10272 10273 10274static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10275{ 10276 struct wpa_driver_nl80211_data *drv = bss->drv; 10277 struct ifreq ifr; 10278 android_wifi_priv_cmd priv_cmd; 10279 char buf[MAX_DRV_CMD_SIZE]; 10280 int ret; 10281 10282 os_memset(&ifr, 0, sizeof(ifr)); 10283 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10284 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10285 10286 os_memset(buf, 0, sizeof(buf)); 10287 os_strlcpy(buf, cmd, sizeof(buf)); 10288 10289 priv_cmd.buf = buf; 10290 priv_cmd.used_len = sizeof(buf); 10291 priv_cmd.total_len = sizeof(buf); 10292 ifr.ifr_data = &priv_cmd; 10293 10294 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10295 if (ret < 0) { 10296 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10297 __func__); 10298 wpa_driver_send_hang_msg(drv); 10299 return ret; 10300 } 10301 10302 drv_errors = 0; 10303 return 0; 10304} 10305 10306 10307static int android_pno_start(struct i802_bss *bss, 10308 struct wpa_driver_scan_params *params) 10309{ 10310 struct wpa_driver_nl80211_data *drv = bss->drv; 10311 struct ifreq ifr; 10312 android_wifi_priv_cmd priv_cmd; 10313 int ret = 0, i = 0, bp; 10314 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10315 10316 bp = WEXT_PNOSETUP_HEADER_SIZE; 10317 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10318 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10319 buf[bp++] = WEXT_PNO_TLV_VERSION; 10320 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10321 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10322 10323 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10324 /* Check that there is enough space needed for 1 more SSID, the 10325 * other sections and null termination */ 10326 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10327 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10328 break; 10329 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10330 params->ssids[i].ssid, 10331 params->ssids[i].ssid_len); 10332 buf[bp++] = WEXT_PNO_SSID_SECTION; 10333 buf[bp++] = params->ssids[i].ssid_len; 10334 os_memcpy(&buf[bp], params->ssids[i].ssid, 10335 params->ssids[i].ssid_len); 10336 bp += params->ssids[i].ssid_len; 10337 i++; 10338 } 10339 10340 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10341 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10342 WEXT_PNO_SCAN_INTERVAL); 10343 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10344 10345 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10346 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10347 WEXT_PNO_REPEAT); 10348 bp += WEXT_PNO_REPEAT_LENGTH; 10349 10350 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10351 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10352 WEXT_PNO_MAX_REPEAT); 10353 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10354 10355 memset(&ifr, 0, sizeof(ifr)); 10356 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10357 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10358 10359 priv_cmd.buf = buf; 10360 priv_cmd.used_len = bp; 10361 priv_cmd.total_len = bp; 10362 ifr.ifr_data = &priv_cmd; 10363 10364 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10365 10366 if (ret < 0) { 10367 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10368 ret); 10369 wpa_driver_send_hang_msg(drv); 10370 return ret; 10371 } 10372 10373 drv_errors = 0; 10374 10375 return android_priv_cmd(bss, "PNOFORCE 1"); 10376} 10377 10378 10379static int android_pno_stop(struct i802_bss *bss) 10380{ 10381 return android_priv_cmd(bss, "PNOFORCE 0"); 10382} 10383 10384#endif /* ANDROID */ 10385 10386 10387static int driver_nl80211_set_key(const char *ifname, void *priv, 10388 enum wpa_alg alg, const u8 *addr, 10389 int key_idx, int set_tx, 10390 const u8 *seq, size_t seq_len, 10391 const u8 *key, size_t key_len) 10392{ 10393 struct i802_bss *bss = priv; 10394 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10395 set_tx, seq, seq_len, key, key_len); 10396} 10397 10398 10399static int driver_nl80211_scan2(void *priv, 10400 struct wpa_driver_scan_params *params) 10401{ 10402 struct i802_bss *bss = priv; 10403 return wpa_driver_nl80211_scan(bss, params); 10404} 10405 10406 10407static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10408 int reason_code) 10409{ 10410 struct i802_bss *bss = priv; 10411 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10412} 10413 10414 10415static int driver_nl80211_authenticate(void *priv, 10416 struct wpa_driver_auth_params *params) 10417{ 10418 struct i802_bss *bss = priv; 10419 return wpa_driver_nl80211_authenticate(bss, params); 10420} 10421 10422 10423static void driver_nl80211_deinit(void *priv) 10424{ 10425 struct i802_bss *bss = priv; 10426 wpa_driver_nl80211_deinit(bss); 10427} 10428 10429 10430static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10431 const char *ifname) 10432{ 10433 struct i802_bss *bss = priv; 10434 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10435} 10436 10437 10438static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10439 size_t data_len, int noack) 10440{ 10441 struct i802_bss *bss = priv; 10442 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10443 0, 0, 0, 0); 10444} 10445 10446 10447static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10448{ 10449 struct i802_bss *bss = priv; 10450 return wpa_driver_nl80211_sta_remove(bss, addr); 10451} 10452 10453 10454#if defined(HOSTAPD) || defined(CONFIG_AP) 10455static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10456 const char *ifname, int vlan_id) 10457{ 10458 struct i802_bss *bss = priv; 10459 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10460} 10461#endif /* HOSTAPD || CONFIG_AP */ 10462 10463 10464static int driver_nl80211_read_sta_data(void *priv, 10465 struct hostap_sta_driver_data *data, 10466 const u8 *addr) 10467{ 10468 struct i802_bss *bss = priv; 10469 return i802_read_sta_data(bss, data, addr); 10470} 10471 10472 10473static int driver_nl80211_send_action(void *priv, unsigned int freq, 10474 unsigned int wait_time, 10475 const u8 *dst, const u8 *src, 10476 const u8 *bssid, 10477 const u8 *data, size_t data_len, 10478 int no_cck) 10479{ 10480 struct i802_bss *bss = priv; 10481 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10482 bssid, data, data_len, no_cck); 10483} 10484 10485 10486static int driver_nl80211_probe_req_report(void *priv, int report) 10487{ 10488 struct i802_bss *bss = priv; 10489 return wpa_driver_nl80211_probe_req_report(bss, report); 10490} 10491 10492 10493static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10494 const u8 *ies, size_t ies_len) 10495{ 10496 int ret; 10497 struct nl_msg *msg; 10498 struct i802_bss *bss = priv; 10499 struct wpa_driver_nl80211_data *drv = bss->drv; 10500 u16 mdid = WPA_GET_LE16(md); 10501 10502 msg = nlmsg_alloc(); 10503 if (!msg) 10504 return -ENOMEM; 10505 10506 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10507 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10508 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10509 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10510 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10511 10512 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10513 if (ret) { 10514 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10515 "err=%d (%s)", ret, strerror(-ret)); 10516 } 10517 10518 return ret; 10519 10520nla_put_failure: 10521 nlmsg_free(msg); 10522 return -ENOBUFS; 10523} 10524 10525 10526const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10527{ 10528 struct i802_bss *bss = priv; 10529 struct wpa_driver_nl80211_data *drv = bss->drv; 10530 10531 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10532 return NULL; 10533 10534 return bss->addr; 10535} 10536 10537 10538const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10539 .name = "nl80211", 10540 .desc = "Linux nl80211/cfg80211", 10541 .get_bssid = wpa_driver_nl80211_get_bssid, 10542 .get_ssid = wpa_driver_nl80211_get_ssid, 10543 .set_key = driver_nl80211_set_key, 10544 .scan2 = driver_nl80211_scan2, 10545 .sched_scan = wpa_driver_nl80211_sched_scan, 10546 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10547 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10548 .deauthenticate = driver_nl80211_deauthenticate, 10549 .authenticate = driver_nl80211_authenticate, 10550 .associate = wpa_driver_nl80211_associate, 10551 .global_init = nl80211_global_init, 10552 .global_deinit = nl80211_global_deinit, 10553 .init2 = wpa_driver_nl80211_init, 10554 .deinit = driver_nl80211_deinit, 10555 .get_capa = wpa_driver_nl80211_get_capa, 10556 .set_operstate = wpa_driver_nl80211_set_operstate, 10557 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10558 .set_country = wpa_driver_nl80211_set_country, 10559 .set_ap = wpa_driver_nl80211_set_ap, 10560 .set_acl = wpa_driver_nl80211_set_acl, 10561 .if_add = wpa_driver_nl80211_if_add, 10562 .if_remove = driver_nl80211_if_remove, 10563 .send_mlme = driver_nl80211_send_mlme, 10564 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10565 .sta_add = wpa_driver_nl80211_sta_add, 10566 .sta_remove = driver_nl80211_sta_remove, 10567 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10568 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10569#ifdef HOSTAPD 10570 .hapd_init = i802_init, 10571 .hapd_deinit = i802_deinit, 10572 .set_wds_sta = i802_set_wds_sta, 10573#endif /* HOSTAPD */ 10574#if defined(HOSTAPD) || defined(CONFIG_AP) 10575 .get_seqnum = i802_get_seqnum, 10576 .flush = i802_flush, 10577 .get_inact_sec = i802_get_inact_sec, 10578 .sta_clear_stats = i802_sta_clear_stats, 10579 .set_rts = i802_set_rts, 10580 .set_frag = i802_set_frag, 10581 .set_tx_queue_params = i802_set_tx_queue_params, 10582 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10583 .sta_deauth = i802_sta_deauth, 10584 .sta_disassoc = i802_sta_disassoc, 10585#endif /* HOSTAPD || CONFIG_AP */ 10586 .read_sta_data = driver_nl80211_read_sta_data, 10587 .set_freq = i802_set_freq, 10588 .send_action = driver_nl80211_send_action, 10589 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 10590 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 10591 .cancel_remain_on_channel = 10592 wpa_driver_nl80211_cancel_remain_on_channel, 10593 .probe_req_report = driver_nl80211_probe_req_report, 10594 .deinit_ap = wpa_driver_nl80211_deinit_ap, 10595 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 10596 .resume = wpa_driver_nl80211_resume, 10597 .send_ft_action = nl80211_send_ft_action, 10598 .signal_monitor = nl80211_signal_monitor, 10599 .signal_poll = nl80211_signal_poll, 10600 .send_frame = nl80211_send_frame, 10601 .shared_freq = wpa_driver_nl80211_shared_freq, 10602 .set_param = nl80211_set_param, 10603 .get_radio_name = nl80211_get_radio_name, 10604 .add_pmkid = nl80211_add_pmkid, 10605 .remove_pmkid = nl80211_remove_pmkid, 10606 .flush_pmkid = nl80211_flush_pmkid, 10607 .set_rekey_info = nl80211_set_rekey_info, 10608 .poll_client = nl80211_poll_client, 10609 .set_p2p_powersave = nl80211_set_p2p_powersave, 10610 .start_dfs_cac = nl80211_start_radar_detection, 10611 .stop_ap = wpa_driver_nl80211_stop_ap, 10612#ifdef CONFIG_TDLS 10613 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 10614 .tdls_oper = nl80211_tdls_oper, 10615#endif /* CONFIG_TDLS */ 10616 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 10617 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 10618#ifdef ANDROID_P2P 10619 .set_noa = wpa_driver_set_p2p_noa, 10620 .get_noa = wpa_driver_get_p2p_noa, 10621 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 10622#endif 10623#ifdef ANDROID 10624 .driver_cmd = wpa_driver_nl80211_driver_cmd, 10625#endif 10626}; 10627