driver_nl80211.c revision 68d0e3ed07847339aedfac8e02f50db68c702e52
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#if __WORDSIZE == 64 144#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 145#else 146#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 147#endif 148 149static void nl80211_register_eloop_read(struct nl_handle **handle, 150 eloop_sock_handler handler, 151 void *eloop_data) 152{ 153 nl_socket_set_nonblocking(*handle); 154 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 155 eloop_data, *handle); 156 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 157} 158 159 160static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 161{ 162 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 163 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 164 nl_destroy_handles(handle); 165} 166 167 168#ifndef IFF_LOWER_UP 169#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 170#endif 171#ifndef IFF_DORMANT 172#define IFF_DORMANT 0x20000 /* driver signals dormant */ 173#endif 174 175#ifndef IF_OPER_DORMANT 176#define IF_OPER_DORMANT 5 177#endif 178#ifndef IF_OPER_UP 179#define IF_OPER_UP 6 180#endif 181 182struct nl80211_global { 183 struct dl_list interfaces; 184 int if_add_ifindex; 185 u64 if_add_wdevid; 186 int if_add_wdevid_set; 187 struct netlink_data *netlink; 188 struct nl_cb *nl_cb; 189 struct nl_handle *nl; 190 int nl80211_id; 191 int ioctl_sock; /* socket for ioctl() use */ 192 193 struct nl_handle *nl_event; 194}; 195 196struct nl80211_wiphy_data { 197 struct dl_list list; 198 struct dl_list bsss; 199 struct dl_list drvs; 200 201 struct nl_handle *nl_beacons; 202 struct nl_cb *nl_cb; 203 204 int wiphy_idx; 205}; 206 207static void nl80211_global_deinit(void *priv); 208 209struct i802_bss { 210 struct wpa_driver_nl80211_data *drv; 211 struct i802_bss *next; 212 int ifindex; 213 u64 wdev_id; 214 char ifname[IFNAMSIZ + 1]; 215 char brname[IFNAMSIZ]; 216 unsigned int beacon_set:1; 217 unsigned int added_if_into_bridge:1; 218 unsigned int added_bridge:1; 219 unsigned int in_deinit:1; 220 unsigned int wdev_id_set:1; 221 222 u8 addr[ETH_ALEN]; 223 224 int freq; 225 int if_dynamic; 226 227 void *ctx; 228 struct nl_handle *nl_preq, *nl_mgmt; 229 struct nl_cb *nl_cb; 230 231 struct nl80211_wiphy_data *wiphy_data; 232 struct dl_list wiphy_list; 233}; 234 235struct wpa_driver_nl80211_data { 236 struct nl80211_global *global; 237 struct dl_list list; 238 struct dl_list wiphy_list; 239 char phyname[32]; 240 void *ctx; 241 int ifindex; 242 int if_removed; 243 int if_disabled; 244 int ignore_if_down_event; 245 struct rfkill_data *rfkill; 246 struct wpa_driver_capa capa; 247 u8 *extended_capa, *extended_capa_mask; 248 unsigned int extended_capa_len; 249 int has_capability; 250 251 int operstate; 252 253 int scan_complete_events; 254 enum scan_states { 255 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 256 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 257 SCHED_SCAN_RESULTS 258 } scan_state; 259 260 struct nl_cb *nl_cb; 261 262 u8 auth_bssid[ETH_ALEN]; 263 u8 auth_attempt_bssid[ETH_ALEN]; 264 u8 bssid[ETH_ALEN]; 265 u8 prev_bssid[ETH_ALEN]; 266 int associated; 267 u8 ssid[32]; 268 size_t ssid_len; 269 enum nl80211_iftype nlmode; 270 enum nl80211_iftype ap_scan_as_station; 271 unsigned int assoc_freq; 272 273 int monitor_sock; 274 int monitor_ifidx; 275 int monitor_refcount; 276 277 unsigned int disabled_11b_rates:1; 278 unsigned int pending_remain_on_chan:1; 279 unsigned int in_interface_list:1; 280 unsigned int device_ap_sme:1; 281 unsigned int poll_command_supported:1; 282 unsigned int data_tx_status:1; 283 unsigned int scan_for_auth:1; 284 unsigned int retry_auth:1; 285 unsigned int use_monitor:1; 286 unsigned int ignore_next_local_disconnect:1; 287 unsigned int allow_p2p_device:1; 288 289 u64 remain_on_chan_cookie; 290 u64 send_action_cookie; 291 292 unsigned int last_mgmt_freq; 293 294 struct wpa_driver_scan_filter *filter_ssids; 295 size_t num_filter_ssids; 296 297 struct i802_bss first_bss; 298 299 int eapol_tx_sock; 300 301#ifdef HOSTAPD 302 int eapol_sock; /* socket for EAPOL frames */ 303 304 int default_if_indices[16]; 305 int *if_indices; 306 int num_if_indices; 307 308 int last_freq; 309 int last_freq_ht; 310#endif /* HOSTAPD */ 311 312 /* From failed authentication command */ 313 int auth_freq; 314 u8 auth_bssid_[ETH_ALEN]; 315 u8 auth_ssid[32]; 316 size_t auth_ssid_len; 317 int auth_alg; 318 u8 *auth_ie; 319 size_t auth_ie_len; 320 u8 auth_wep_key[4][16]; 321 size_t auth_wep_key_len[4]; 322 int auth_wep_tx_keyidx; 323 int auth_local_state_change; 324 int auth_p2p; 325}; 326 327 328static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 329static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 330 void *timeout_ctx); 331static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 332 enum nl80211_iftype nlmode); 333static int 334wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 335static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 336 const u8 *addr, int cmd, u16 reason_code, 337 int local_state_change); 338static void nl80211_remove_monitor_interface( 339 struct wpa_driver_nl80211_data *drv); 340static int nl80211_send_frame_cmd(struct i802_bss *bss, 341 unsigned int freq, unsigned int wait, 342 const u8 *buf, size_t buf_len, u64 *cookie, 343 int no_cck, int no_ack, int offchanok); 344static int nl80211_register_frame(struct i802_bss *bss, 345 struct nl_handle *hl_handle, 346 u16 type, const u8 *match, size_t match_len); 347static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 348 int report); 349#ifdef ANDROID 350static int android_pno_start(struct i802_bss *bss, 351 struct wpa_driver_scan_params *params); 352static int android_pno_stop(struct i802_bss *bss); 353#endif /* ANDROID */ 354#ifdef ANDROID_P2P 355int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 356int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 357int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 358int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 359 const struct wpabuf *proberesp, 360 const struct wpabuf *assocresp); 361 362#endif 363#ifdef HOSTAPD 364static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 365static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 366static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 367static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 368 enum wpa_driver_if_type type, 369 const char *ifname); 370#else /* HOSTAPD */ 371static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 372{ 373} 374 375static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 376{ 377} 378 379static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 380{ 381 return 0; 382} 383#endif /* HOSTAPD */ 384#ifdef ANDROID 385extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 386 size_t buf_len); 387#endif 388 389static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 390 struct hostapd_freq_params *freq); 391static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 392 int ifindex, int disabled); 393 394static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 395static int wpa_driver_nl80211_authenticate_retry( 396 struct wpa_driver_nl80211_data *drv); 397 398static int i802_set_iface_flags(struct i802_bss *bss, int up); 399 400 401static const char * nl80211_command_to_string(enum nl80211_commands cmd) 402{ 403#define C2S(x) case x: return #x; 404 switch (cmd) { 405 C2S(NL80211_CMD_UNSPEC) 406 C2S(NL80211_CMD_GET_WIPHY) 407 C2S(NL80211_CMD_SET_WIPHY) 408 C2S(NL80211_CMD_NEW_WIPHY) 409 C2S(NL80211_CMD_DEL_WIPHY) 410 C2S(NL80211_CMD_GET_INTERFACE) 411 C2S(NL80211_CMD_SET_INTERFACE) 412 C2S(NL80211_CMD_NEW_INTERFACE) 413 C2S(NL80211_CMD_DEL_INTERFACE) 414 C2S(NL80211_CMD_GET_KEY) 415 C2S(NL80211_CMD_SET_KEY) 416 C2S(NL80211_CMD_NEW_KEY) 417 C2S(NL80211_CMD_DEL_KEY) 418 C2S(NL80211_CMD_GET_BEACON) 419 C2S(NL80211_CMD_SET_BEACON) 420 C2S(NL80211_CMD_START_AP) 421 C2S(NL80211_CMD_STOP_AP) 422 C2S(NL80211_CMD_GET_STATION) 423 C2S(NL80211_CMD_SET_STATION) 424 C2S(NL80211_CMD_NEW_STATION) 425 C2S(NL80211_CMD_DEL_STATION) 426 C2S(NL80211_CMD_GET_MPATH) 427 C2S(NL80211_CMD_SET_MPATH) 428 C2S(NL80211_CMD_NEW_MPATH) 429 C2S(NL80211_CMD_DEL_MPATH) 430 C2S(NL80211_CMD_SET_BSS) 431 C2S(NL80211_CMD_SET_REG) 432 C2S(NL80211_CMD_REQ_SET_REG) 433 C2S(NL80211_CMD_GET_MESH_CONFIG) 434 C2S(NL80211_CMD_SET_MESH_CONFIG) 435 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 436 C2S(NL80211_CMD_GET_REG) 437 C2S(NL80211_CMD_GET_SCAN) 438 C2S(NL80211_CMD_TRIGGER_SCAN) 439 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 440 C2S(NL80211_CMD_SCAN_ABORTED) 441 C2S(NL80211_CMD_REG_CHANGE) 442 C2S(NL80211_CMD_AUTHENTICATE) 443 C2S(NL80211_CMD_ASSOCIATE) 444 C2S(NL80211_CMD_DEAUTHENTICATE) 445 C2S(NL80211_CMD_DISASSOCIATE) 446 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 447 C2S(NL80211_CMD_REG_BEACON_HINT) 448 C2S(NL80211_CMD_JOIN_IBSS) 449 C2S(NL80211_CMD_LEAVE_IBSS) 450 C2S(NL80211_CMD_TESTMODE) 451 C2S(NL80211_CMD_CONNECT) 452 C2S(NL80211_CMD_ROAM) 453 C2S(NL80211_CMD_DISCONNECT) 454 C2S(NL80211_CMD_SET_WIPHY_NETNS) 455 C2S(NL80211_CMD_GET_SURVEY) 456 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 457 C2S(NL80211_CMD_SET_PMKSA) 458 C2S(NL80211_CMD_DEL_PMKSA) 459 C2S(NL80211_CMD_FLUSH_PMKSA) 460 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 461 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 462 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 463 C2S(NL80211_CMD_REGISTER_FRAME) 464 C2S(NL80211_CMD_FRAME) 465 C2S(NL80211_CMD_FRAME_TX_STATUS) 466 C2S(NL80211_CMD_SET_POWER_SAVE) 467 C2S(NL80211_CMD_GET_POWER_SAVE) 468 C2S(NL80211_CMD_SET_CQM) 469 C2S(NL80211_CMD_NOTIFY_CQM) 470 C2S(NL80211_CMD_SET_CHANNEL) 471 C2S(NL80211_CMD_SET_WDS_PEER) 472 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 473 C2S(NL80211_CMD_JOIN_MESH) 474 C2S(NL80211_CMD_LEAVE_MESH) 475 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 476 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 477 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 478 C2S(NL80211_CMD_GET_WOWLAN) 479 C2S(NL80211_CMD_SET_WOWLAN) 480 C2S(NL80211_CMD_START_SCHED_SCAN) 481 C2S(NL80211_CMD_STOP_SCHED_SCAN) 482 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 483 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 484 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 485 C2S(NL80211_CMD_PMKSA_CANDIDATE) 486 C2S(NL80211_CMD_TDLS_OPER) 487 C2S(NL80211_CMD_TDLS_MGMT) 488 C2S(NL80211_CMD_UNEXPECTED_FRAME) 489 C2S(NL80211_CMD_PROBE_CLIENT) 490 C2S(NL80211_CMD_REGISTER_BEACONS) 491 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 492 C2S(NL80211_CMD_SET_NOACK_MAP) 493 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 494 C2S(NL80211_CMD_START_P2P_DEVICE) 495 C2S(NL80211_CMD_STOP_P2P_DEVICE) 496 C2S(NL80211_CMD_CONN_FAILED) 497 C2S(NL80211_CMD_SET_MCAST_RATE) 498 C2S(NL80211_CMD_SET_MAC_ACL) 499 C2S(NL80211_CMD_RADAR_DETECT) 500 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 501 C2S(NL80211_CMD_UPDATE_FT_IES) 502 C2S(NL80211_CMD_FT_EVENT) 503 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 504 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 505 default: 506 return "NL80211_CMD_UNKNOWN"; 507 } 508#undef C2S 509} 510 511 512static int is_ap_interface(enum nl80211_iftype nlmode) 513{ 514 return (nlmode == NL80211_IFTYPE_AP || 515 nlmode == NL80211_IFTYPE_P2P_GO); 516} 517 518 519static int is_sta_interface(enum nl80211_iftype nlmode) 520{ 521 return (nlmode == NL80211_IFTYPE_STATION || 522 nlmode == NL80211_IFTYPE_P2P_CLIENT); 523} 524 525 526static int is_p2p_net_interface(enum nl80211_iftype nlmode) 527{ 528 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 529 nlmode == NL80211_IFTYPE_P2P_GO); 530} 531 532 533static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 534{ 535 if (drv->associated) 536 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 537 drv->associated = 0; 538 os_memset(drv->bssid, 0, ETH_ALEN); 539} 540 541 542struct nl80211_bss_info_arg { 543 struct wpa_driver_nl80211_data *drv; 544 struct wpa_scan_results *res; 545 unsigned int assoc_freq; 546 u8 assoc_bssid[ETH_ALEN]; 547}; 548 549static int bss_info_handler(struct nl_msg *msg, void *arg); 550 551 552/* nl80211 code */ 553static int ack_handler(struct nl_msg *msg, void *arg) 554{ 555 int *err = arg; 556 *err = 0; 557 return NL_STOP; 558} 559 560static int finish_handler(struct nl_msg *msg, void *arg) 561{ 562 int *ret = arg; 563 *ret = 0; 564 return NL_SKIP; 565} 566 567static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 568 void *arg) 569{ 570 int *ret = arg; 571 *ret = err->error; 572 return NL_SKIP; 573} 574 575 576static int no_seq_check(struct nl_msg *msg, void *arg) 577{ 578 return NL_OK; 579} 580 581 582static int send_and_recv(struct nl80211_global *global, 583 struct nl_handle *nl_handle, struct nl_msg *msg, 584 int (*valid_handler)(struct nl_msg *, void *), 585 void *valid_data) 586{ 587 struct nl_cb *cb; 588 int err = -ENOMEM; 589 590 cb = nl_cb_clone(global->nl_cb); 591 if (!cb) 592 goto out; 593 594 err = nl_send_auto_complete(nl_handle, msg); 595 if (err < 0) 596 goto out; 597 598 err = 1; 599 600 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 601 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 602 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 603 604 if (valid_handler) 605 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 606 valid_handler, valid_data); 607 608 while (err > 0) { 609 int res = nl_recvmsgs(nl_handle, cb); 610 if (res) { 611 wpa_printf(MSG_INFO, 612 "nl80211: %s->nl_recvmsgs failed: %d", 613 __func__, res); 614 } 615 } 616 out: 617 nl_cb_put(cb); 618 nlmsg_free(msg); 619 return err; 620} 621 622 623static int send_and_recv_msgs_global(struct nl80211_global *global, 624 struct nl_msg *msg, 625 int (*valid_handler)(struct nl_msg *, void *), 626 void *valid_data) 627{ 628 return send_and_recv(global, global->nl, msg, valid_handler, 629 valid_data); 630} 631 632 633#ifndef ANDROID 634static 635#endif 636int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 637 struct nl_msg *msg, 638 int (*valid_handler)(struct nl_msg *, void *), 639 void *valid_data) 640{ 641 return send_and_recv(drv->global, drv->global->nl, msg, 642 valid_handler, valid_data); 643} 644 645 646struct family_data { 647 const char *group; 648 int id; 649}; 650 651 652static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 653{ 654 if (bss->wdev_id_set) 655 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 656 else 657 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 658 return 0; 659 660nla_put_failure: 661 return -1; 662} 663 664 665static int family_handler(struct nl_msg *msg, void *arg) 666{ 667 struct family_data *res = arg; 668 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 669 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 670 struct nlattr *mcgrp; 671 int i; 672 673 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 674 genlmsg_attrlen(gnlh, 0), NULL); 675 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 676 return NL_SKIP; 677 678 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 679 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 680 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 681 nla_len(mcgrp), NULL); 682 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 683 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 684 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 685 res->group, 686 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 687 continue; 688 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 689 break; 690 }; 691 692 return NL_SKIP; 693} 694 695 696static int nl_get_multicast_id(struct nl80211_global *global, 697 const char *family, const char *group) 698{ 699 struct nl_msg *msg; 700 int ret = -1; 701 struct family_data res = { group, -ENOENT }; 702 703 msg = nlmsg_alloc(); 704 if (!msg) 705 return -ENOMEM; 706 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 707 0, 0, CTRL_CMD_GETFAMILY, 0); 708 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 709 710 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 711 msg = NULL; 712 if (ret == 0) 713 ret = res.id; 714 715nla_put_failure: 716 nlmsg_free(msg); 717 return ret; 718} 719 720 721static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 722 struct nl_msg *msg, int flags, uint8_t cmd) 723{ 724 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 725 0, flags, cmd, 0); 726} 727 728 729struct wiphy_idx_data { 730 int wiphy_idx; 731 enum nl80211_iftype nlmode; 732 u8 *macaddr; 733}; 734 735 736static int netdev_info_handler(struct nl_msg *msg, void *arg) 737{ 738 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 739 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 740 struct wiphy_idx_data *info = arg; 741 742 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 743 genlmsg_attrlen(gnlh, 0), NULL); 744 745 if (tb[NL80211_ATTR_WIPHY]) 746 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 747 748 if (tb[NL80211_ATTR_IFTYPE]) 749 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 750 751 if (tb[NL80211_ATTR_MAC] && info->macaddr) 752 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 753 ETH_ALEN); 754 755 return NL_SKIP; 756} 757 758 759static int nl80211_get_wiphy_index(struct i802_bss *bss) 760{ 761 struct nl_msg *msg; 762 struct wiphy_idx_data data = { 763 .wiphy_idx = -1, 764 .macaddr = NULL, 765 }; 766 767 msg = nlmsg_alloc(); 768 if (!msg) 769 return NL80211_IFTYPE_UNSPECIFIED; 770 771 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 772 773 if (nl80211_set_iface_id(msg, bss) < 0) 774 goto nla_put_failure; 775 776 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 777 return data.wiphy_idx; 778 msg = NULL; 779nla_put_failure: 780 nlmsg_free(msg); 781 return -1; 782} 783 784 785static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 786{ 787 struct nl_msg *msg; 788 struct wiphy_idx_data data = { 789 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 790 .macaddr = NULL, 791 }; 792 793 msg = nlmsg_alloc(); 794 if (!msg) 795 return -1; 796 797 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 798 799 if (nl80211_set_iface_id(msg, bss) < 0) 800 goto nla_put_failure; 801 802 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 803 return data.nlmode; 804 msg = NULL; 805nla_put_failure: 806 nlmsg_free(msg); 807 return NL80211_IFTYPE_UNSPECIFIED; 808} 809 810 811#ifndef HOSTAPD 812static int nl80211_get_macaddr(struct i802_bss *bss) 813{ 814 struct nl_msg *msg; 815 struct wiphy_idx_data data = { 816 .macaddr = bss->addr, 817 }; 818 819 msg = nlmsg_alloc(); 820 if (!msg) 821 return NL80211_IFTYPE_UNSPECIFIED; 822 823 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 824 if (nl80211_set_iface_id(msg, bss) < 0) 825 goto nla_put_failure; 826 827 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 828 829nla_put_failure: 830 nlmsg_free(msg); 831 return NL80211_IFTYPE_UNSPECIFIED; 832} 833#endif /* HOSTAPD */ 834 835 836static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 837 struct nl80211_wiphy_data *w) 838{ 839 struct nl_msg *msg; 840 int ret = -1; 841 842 msg = nlmsg_alloc(); 843 if (!msg) 844 return -1; 845 846 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 847 848 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 849 850 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 851 msg = NULL; 852 if (ret) { 853 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 854 "failed: ret=%d (%s)", 855 ret, strerror(-ret)); 856 goto nla_put_failure; 857 } 858 ret = 0; 859nla_put_failure: 860 nlmsg_free(msg); 861 return ret; 862} 863 864 865static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 866{ 867 struct nl80211_wiphy_data *w = eloop_ctx; 868 int res; 869 870 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 871 872 res = nl_recvmsgs(handle, w->nl_cb); 873 if (res) { 874 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 875 __func__, res); 876 } 877} 878 879 880static int process_beacon_event(struct nl_msg *msg, void *arg) 881{ 882 struct nl80211_wiphy_data *w = arg; 883 struct wpa_driver_nl80211_data *drv; 884 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 885 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 886 union wpa_event_data event; 887 888 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 889 genlmsg_attrlen(gnlh, 0), NULL); 890 891 if (gnlh->cmd != NL80211_CMD_FRAME) { 892 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 893 gnlh->cmd); 894 return NL_SKIP; 895 } 896 897 if (!tb[NL80211_ATTR_FRAME]) 898 return NL_SKIP; 899 900 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 901 wiphy_list) { 902 os_memset(&event, 0, sizeof(event)); 903 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 904 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 905 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 906 } 907 908 return NL_SKIP; 909} 910 911 912static struct nl80211_wiphy_data * 913nl80211_get_wiphy_data_ap(struct i802_bss *bss) 914{ 915 static DEFINE_DL_LIST(nl80211_wiphys); 916 struct nl80211_wiphy_data *w; 917 int wiphy_idx, found = 0; 918 struct i802_bss *tmp_bss; 919 920 if (bss->wiphy_data != NULL) 921 return bss->wiphy_data; 922 923 wiphy_idx = nl80211_get_wiphy_index(bss); 924 925 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 926 if (w->wiphy_idx == wiphy_idx) 927 goto add; 928 } 929 930 /* alloc new one */ 931 w = os_zalloc(sizeof(*w)); 932 if (w == NULL) 933 return NULL; 934 w->wiphy_idx = wiphy_idx; 935 dl_list_init(&w->bsss); 936 dl_list_init(&w->drvs); 937 938 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 939 if (!w->nl_cb) { 940 os_free(w); 941 return NULL; 942 } 943 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 944 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 945 w); 946 947 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 948 "wiphy beacons"); 949 if (w->nl_beacons == NULL) { 950 os_free(w); 951 return NULL; 952 } 953 954 if (nl80211_register_beacons(bss->drv, w)) { 955 nl_destroy_handles(&w->nl_beacons); 956 os_free(w); 957 return NULL; 958 } 959 960 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 961 962 dl_list_add(&nl80211_wiphys, &w->list); 963 964add: 965 /* drv entry for this bss already there? */ 966 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 967 if (tmp_bss->drv == bss->drv) { 968 found = 1; 969 break; 970 } 971 } 972 /* if not add it */ 973 if (!found) 974 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 975 976 dl_list_add(&w->bsss, &bss->wiphy_list); 977 bss->wiphy_data = w; 978 return w; 979} 980 981 982static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 983{ 984 struct nl80211_wiphy_data *w = bss->wiphy_data; 985 struct i802_bss *tmp_bss; 986 int found = 0; 987 988 if (w == NULL) 989 return; 990 bss->wiphy_data = NULL; 991 dl_list_del(&bss->wiphy_list); 992 993 /* still any for this drv present? */ 994 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 995 if (tmp_bss->drv == bss->drv) { 996 found = 1; 997 break; 998 } 999 } 1000 /* if not remove it */ 1001 if (!found) 1002 dl_list_del(&bss->drv->wiphy_list); 1003 1004 if (!dl_list_empty(&w->bsss)) 1005 return; 1006 1007 nl80211_destroy_eloop_handle(&w->nl_beacons); 1008 1009 nl_cb_put(w->nl_cb); 1010 dl_list_del(&w->list); 1011 os_free(w); 1012} 1013 1014 1015static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 1016{ 1017 struct i802_bss *bss = priv; 1018 struct wpa_driver_nl80211_data *drv = bss->drv; 1019 if (!drv->associated) 1020 return -1; 1021 os_memcpy(bssid, drv->bssid, ETH_ALEN); 1022 return 0; 1023} 1024 1025 1026static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 1027{ 1028 struct i802_bss *bss = priv; 1029 struct wpa_driver_nl80211_data *drv = bss->drv; 1030 if (!drv->associated) 1031 return -1; 1032 os_memcpy(ssid, drv->ssid, drv->ssid_len); 1033 return drv->ssid_len; 1034} 1035 1036 1037static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 1038 char *buf, size_t len, int del) 1039{ 1040 union wpa_event_data event; 1041 1042 os_memset(&event, 0, sizeof(event)); 1043 if (len > sizeof(event.interface_status.ifname)) 1044 len = sizeof(event.interface_status.ifname) - 1; 1045 os_memcpy(event.interface_status.ifname, buf, len); 1046 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1047 EVENT_INTERFACE_ADDED; 1048 1049 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1050 del ? "DEL" : "NEW", 1051 event.interface_status.ifname, 1052 del ? "removed" : "added"); 1053 1054 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 1055 if (del) { 1056 if (drv->if_removed) { 1057 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1058 "already set - ignore event"); 1059 return; 1060 } 1061 drv->if_removed = 1; 1062 } else { 1063 if (if_nametoindex(drv->first_bss.ifname) == 0) { 1064 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1065 "does not exist - ignore " 1066 "RTM_NEWLINK", 1067 drv->first_bss.ifname); 1068 return; 1069 } 1070 if (!drv->if_removed) { 1071 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1072 "already cleared - ignore event"); 1073 return; 1074 } 1075 drv->if_removed = 0; 1076 } 1077 } 1078 1079 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1080} 1081 1082 1083static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1084 u8 *buf, size_t len) 1085{ 1086 int attrlen, rta_len; 1087 struct rtattr *attr; 1088 1089 attrlen = len; 1090 attr = (struct rtattr *) buf; 1091 1092 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1093 while (RTA_OK(attr, attrlen)) { 1094 if (attr->rta_type == IFLA_IFNAME) { 1095 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 1096 == 0) 1097 return 1; 1098 else 1099 break; 1100 } 1101 attr = RTA_NEXT(attr, attrlen); 1102 } 1103 1104 return 0; 1105} 1106 1107 1108static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1109 int ifindex, u8 *buf, size_t len) 1110{ 1111 if (drv->ifindex == ifindex) 1112 return 1; 1113 1114 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1115 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1116 "interface"); 1117 wpa_driver_nl80211_finish_drv_init(drv); 1118 return 1; 1119 } 1120 1121 return 0; 1122} 1123 1124 1125static struct wpa_driver_nl80211_data * 1126nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1127{ 1128 struct wpa_driver_nl80211_data *drv; 1129 dl_list_for_each(drv, &global->interfaces, 1130 struct wpa_driver_nl80211_data, list) { 1131 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1132 have_ifidx(drv, idx)) 1133 return drv; 1134 } 1135 return NULL; 1136} 1137 1138 1139static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1140 struct ifinfomsg *ifi, 1141 u8 *buf, size_t len) 1142{ 1143 struct nl80211_global *global = ctx; 1144 struct wpa_driver_nl80211_data *drv; 1145 int attrlen, rta_len; 1146 struct rtattr *attr; 1147 u32 brid = 0; 1148 char namebuf[IFNAMSIZ]; 1149 1150 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1151 if (!drv) { 1152 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1153 "ifindex %d", ifi->ifi_index); 1154 return; 1155 } 1156 1157 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1158 "(%s%s%s%s)", 1159 drv->operstate, ifi->ifi_flags, 1160 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1161 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1162 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1163 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1164 1165 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1166 if (if_indextoname(ifi->ifi_index, namebuf) && 1167 linux_iface_up(drv->global->ioctl_sock, 1168 drv->first_bss.ifname) > 0) { 1169 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1170 "event since interface %s is up", namebuf); 1171 return; 1172 } 1173 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1174 if (drv->ignore_if_down_event) { 1175 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1176 "event generated by mode change"); 1177 drv->ignore_if_down_event = 0; 1178 } else { 1179 drv->if_disabled = 1; 1180 wpa_supplicant_event(drv->ctx, 1181 EVENT_INTERFACE_DISABLED, NULL); 1182 } 1183 } 1184 1185 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1186 if (if_indextoname(ifi->ifi_index, namebuf) && 1187 linux_iface_up(drv->global->ioctl_sock, 1188 drv->first_bss.ifname) == 0) { 1189 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1190 "event since interface %s is down", 1191 namebuf); 1192 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 1193 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1194 "event since interface %s does not exist", 1195 drv->first_bss.ifname); 1196 } else if (drv->if_removed) { 1197 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1198 "event since interface %s is marked " 1199 "removed", drv->first_bss.ifname); 1200 } else { 1201 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1202 drv->if_disabled = 0; 1203 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1204 NULL); 1205 } 1206 } 1207 1208 /* 1209 * Some drivers send the association event before the operup event--in 1210 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1211 * fails. This will hit us when wpa_supplicant does not need to do 1212 * IEEE 802.1X authentication 1213 */ 1214 if (drv->operstate == 1 && 1215 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1216 !(ifi->ifi_flags & IFF_RUNNING)) 1217 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1218 -1, IF_OPER_UP); 1219 1220 attrlen = len; 1221 attr = (struct rtattr *) buf; 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, 0); 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 added to bridge */ 1236 if_indextoname(brid, namebuf); 1237 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1238 brid, namebuf); 1239 add_ifidx(drv, brid); 1240 } 1241} 1242 1243 1244static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1245 struct ifinfomsg *ifi, 1246 u8 *buf, size_t len) 1247{ 1248 struct nl80211_global *global = ctx; 1249 struct wpa_driver_nl80211_data *drv; 1250 int attrlen, rta_len; 1251 struct rtattr *attr; 1252 u32 brid = 0; 1253 1254 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1255 if (!drv) { 1256 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1257 "foreign ifindex %d", ifi->ifi_index); 1258 return; 1259 } 1260 1261 attrlen = len; 1262 attr = (struct rtattr *) buf; 1263 1264 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1265 while (RTA_OK(attr, attrlen)) { 1266 if (attr->rta_type == IFLA_IFNAME) { 1267 wpa_driver_nl80211_event_link( 1268 drv, 1269 ((char *) attr) + rta_len, 1270 attr->rta_len - rta_len, 1); 1271 } else if (attr->rta_type == IFLA_MASTER) 1272 brid = nla_get_u32((struct nlattr *) attr); 1273 attr = RTA_NEXT(attr, attrlen); 1274 } 1275 1276 if (ifi->ifi_family == AF_BRIDGE && brid) { 1277 /* device has been removed from bridge */ 1278 char namebuf[IFNAMSIZ]; 1279 if_indextoname(brid, namebuf); 1280 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1281 "%s", brid, namebuf); 1282 del_ifidx(drv, brid); 1283 } 1284} 1285 1286 1287static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1288 const u8 *frame, size_t len) 1289{ 1290 const struct ieee80211_mgmt *mgmt; 1291 union wpa_event_data event; 1292 1293 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1294 mgmt = (const struct ieee80211_mgmt *) frame; 1295 if (len < 24 + sizeof(mgmt->u.auth)) { 1296 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1297 "frame"); 1298 return; 1299 } 1300 1301 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1302 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1303 os_memset(&event, 0, sizeof(event)); 1304 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1305 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1306 event.auth.auth_transaction = 1307 le_to_host16(mgmt->u.auth.auth_transaction); 1308 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1309 if (len > 24 + sizeof(mgmt->u.auth)) { 1310 event.auth.ies = mgmt->u.auth.variable; 1311 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1312 } 1313 1314 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1315} 1316 1317 1318static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1319{ 1320 struct nl_msg *msg; 1321 int ret; 1322 struct nl80211_bss_info_arg arg; 1323 1324 os_memset(&arg, 0, sizeof(arg)); 1325 msg = nlmsg_alloc(); 1326 if (!msg) 1327 goto nla_put_failure; 1328 1329 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1330 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1331 1332 arg.drv = drv; 1333 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1334 msg = NULL; 1335 if (ret == 0) { 1336 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1337 "associated BSS from scan results: %u MHz", 1338 arg.assoc_freq); 1339 if (arg.assoc_freq) 1340 drv->assoc_freq = arg.assoc_freq; 1341 return drv->assoc_freq; 1342 } 1343 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1344 "(%s)", ret, strerror(-ret)); 1345nla_put_failure: 1346 nlmsg_free(msg); 1347 return drv->assoc_freq; 1348} 1349 1350 1351static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1352 const u8 *frame, size_t len) 1353{ 1354 const struct ieee80211_mgmt *mgmt; 1355 union wpa_event_data event; 1356 u16 status; 1357 1358 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1359 mgmt = (const struct ieee80211_mgmt *) frame; 1360 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1361 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1362 "frame"); 1363 return; 1364 } 1365 1366 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1367 if (status != WLAN_STATUS_SUCCESS) { 1368 os_memset(&event, 0, sizeof(event)); 1369 event.assoc_reject.bssid = mgmt->bssid; 1370 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1371 event.assoc_reject.resp_ies = 1372 (u8 *) mgmt->u.assoc_resp.variable; 1373 event.assoc_reject.resp_ies_len = 1374 len - 24 - sizeof(mgmt->u.assoc_resp); 1375 } 1376 event.assoc_reject.status_code = status; 1377 1378 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1379 return; 1380 } 1381 1382 drv->associated = 1; 1383 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1384 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1385 1386 os_memset(&event, 0, sizeof(event)); 1387 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1388 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1389 event.assoc_info.resp_ies_len = 1390 len - 24 - sizeof(mgmt->u.assoc_resp); 1391 } 1392 1393 event.assoc_info.freq = drv->assoc_freq; 1394 1395 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1396} 1397 1398 1399static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1400 enum nl80211_commands cmd, struct nlattr *status, 1401 struct nlattr *addr, struct nlattr *req_ie, 1402 struct nlattr *resp_ie) 1403{ 1404 union wpa_event_data event; 1405 1406 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1407 /* 1408 * Avoid reporting two association events that would confuse 1409 * the core code. 1410 */ 1411 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1412 "when using userspace SME", cmd); 1413 return; 1414 } 1415 1416 if (cmd == NL80211_CMD_CONNECT) 1417 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1418 else if (cmd == NL80211_CMD_ROAM) 1419 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1420 1421 os_memset(&event, 0, sizeof(event)); 1422 if (cmd == NL80211_CMD_CONNECT && 1423 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1424 if (addr) 1425 event.assoc_reject.bssid = nla_data(addr); 1426 if (resp_ie) { 1427 event.assoc_reject.resp_ies = nla_data(resp_ie); 1428 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1429 } 1430 event.assoc_reject.status_code = nla_get_u16(status); 1431 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1432 return; 1433 } 1434 1435 drv->associated = 1; 1436 if (addr) { 1437 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1438 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1439 } 1440 1441 if (req_ie) { 1442 event.assoc_info.req_ies = nla_data(req_ie); 1443 event.assoc_info.req_ies_len = nla_len(req_ie); 1444 } 1445 if (resp_ie) { 1446 event.assoc_info.resp_ies = nla_data(resp_ie); 1447 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1448 } 1449 1450 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1451 1452 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1453} 1454 1455 1456static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1457 struct nlattr *reason, struct nlattr *addr, 1458 struct nlattr *by_ap) 1459{ 1460 union wpa_event_data data; 1461 unsigned int locally_generated = by_ap == NULL; 1462 1463 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1464 /* 1465 * Avoid reporting two disassociation events that could 1466 * confuse the core code. 1467 */ 1468 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1469 "event when using userspace SME"); 1470 return; 1471 } 1472 1473 if (drv->ignore_next_local_disconnect) { 1474 drv->ignore_next_local_disconnect = 0; 1475 if (locally_generated) { 1476 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1477 "event triggered during reassociation"); 1478 return; 1479 } 1480 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1481 "disconnect but got another disconnect " 1482 "event first"); 1483 } 1484 1485 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1486 nl80211_mark_disconnected(drv); 1487 os_memset(&data, 0, sizeof(data)); 1488 if (reason) 1489 data.deauth_info.reason_code = nla_get_u16(reason); 1490 data.deauth_info.locally_generated = by_ap == NULL; 1491 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1492} 1493 1494 1495static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1496 struct nlattr *freq, struct nlattr *type) 1497{ 1498 union wpa_event_data data; 1499 int ht_enabled = 1; 1500 int chan_offset = 0; 1501 1502 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1503 1504 if (!freq || !type) 1505 return; 1506 1507 switch (nla_get_u32(type)) { 1508 case NL80211_CHAN_NO_HT: 1509 ht_enabled = 0; 1510 break; 1511 case NL80211_CHAN_HT20: 1512 break; 1513 case NL80211_CHAN_HT40PLUS: 1514 chan_offset = 1; 1515 break; 1516 case NL80211_CHAN_HT40MINUS: 1517 chan_offset = -1; 1518 break; 1519 } 1520 1521 data.ch_switch.freq = nla_get_u32(freq); 1522 data.ch_switch.ht_enabled = ht_enabled; 1523 data.ch_switch.ch_offset = chan_offset; 1524 1525 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1526} 1527 1528 1529static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1530 enum nl80211_commands cmd, struct nlattr *addr) 1531{ 1532 union wpa_event_data event; 1533 enum wpa_event_type ev; 1534 1535 if (nla_len(addr) != ETH_ALEN) 1536 return; 1537 1538 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1539 cmd, MAC2STR((u8 *) nla_data(addr))); 1540 1541 if (cmd == NL80211_CMD_AUTHENTICATE) 1542 ev = EVENT_AUTH_TIMED_OUT; 1543 else if (cmd == NL80211_CMD_ASSOCIATE) 1544 ev = EVENT_ASSOC_TIMED_OUT; 1545 else 1546 return; 1547 1548 os_memset(&event, 0, sizeof(event)); 1549 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1550 wpa_supplicant_event(drv->ctx, ev, &event); 1551} 1552 1553 1554static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1555 struct nlattr *freq, struct nlattr *sig, 1556 const u8 *frame, size_t len) 1557{ 1558 const struct ieee80211_mgmt *mgmt; 1559 union wpa_event_data event; 1560 u16 fc, stype; 1561 int ssi_signal = 0; 1562 int rx_freq = 0; 1563 1564 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1565 mgmt = (const struct ieee80211_mgmt *) frame; 1566 if (len < 24) { 1567 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1568 return; 1569 } 1570 1571 fc = le_to_host16(mgmt->frame_control); 1572 stype = WLAN_FC_GET_STYPE(fc); 1573 1574 if (sig) 1575 ssi_signal = (s32) nla_get_u32(sig); 1576 1577 os_memset(&event, 0, sizeof(event)); 1578 if (freq) { 1579 event.rx_action.freq = nla_get_u32(freq); 1580 rx_freq = drv->last_mgmt_freq = event.rx_action.freq; 1581 } 1582 wpa_printf(MSG_DEBUG, 1583 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", 1584 rx_freq, ssi_signal, stype, (unsigned int) len); 1585 if (stype == WLAN_FC_STYPE_ACTION) { 1586 event.rx_action.da = mgmt->da; 1587 event.rx_action.sa = mgmt->sa; 1588 event.rx_action.bssid = mgmt->bssid; 1589 event.rx_action.category = mgmt->u.action.category; 1590 event.rx_action.data = &mgmt->u.action.category + 1; 1591 event.rx_action.len = frame + len - event.rx_action.data; 1592 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1593 } else { 1594 event.rx_mgmt.frame = frame; 1595 event.rx_mgmt.frame_len = len; 1596 event.rx_mgmt.ssi_signal = ssi_signal; 1597 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1598 } 1599} 1600 1601 1602static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1603 struct nlattr *cookie, const u8 *frame, 1604 size_t len, struct nlattr *ack) 1605{ 1606 union wpa_event_data event; 1607 const struct ieee80211_hdr *hdr; 1608 u16 fc; 1609 1610 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1611 if (!is_ap_interface(drv->nlmode)) { 1612 u64 cookie_val; 1613 1614 if (!cookie) 1615 return; 1616 1617 cookie_val = nla_get_u64(cookie); 1618 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1619 " cookie=0%llx%s (ack=%d)", 1620 (long long unsigned int) cookie_val, 1621 cookie_val == drv->send_action_cookie ? 1622 " (match)" : " (unknown)", ack != NULL); 1623 if (cookie_val != drv->send_action_cookie) 1624 return; 1625 } 1626 1627 hdr = (const struct ieee80211_hdr *) frame; 1628 fc = le_to_host16(hdr->frame_control); 1629 1630 os_memset(&event, 0, sizeof(event)); 1631 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1632 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1633 event.tx_status.dst = hdr->addr1; 1634 event.tx_status.data = frame; 1635 event.tx_status.data_len = len; 1636 event.tx_status.ack = ack != NULL; 1637 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1638} 1639 1640 1641static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1642 enum wpa_event_type type, 1643 const u8 *frame, size_t len) 1644{ 1645 const struct ieee80211_mgmt *mgmt; 1646 union wpa_event_data event; 1647 const u8 *bssid = NULL; 1648 u16 reason_code = 0; 1649 1650 if (type == EVENT_DEAUTH) 1651 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1652 else 1653 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1654 1655 mgmt = (const struct ieee80211_mgmt *) frame; 1656 if (len >= 24) { 1657 bssid = mgmt->bssid; 1658 1659 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1660 !drv->associated && 1661 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1662 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1663 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1664 /* 1665 * Avoid issues with some roaming cases where 1666 * disconnection event for the old AP may show up after 1667 * we have started connection with the new AP. 1668 */ 1669 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1670 MAC2STR(bssid), 1671 MAC2STR(drv->auth_attempt_bssid)); 1672 return; 1673 } 1674 1675 if (drv->associated != 0 && 1676 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1677 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1678 /* 1679 * We have presumably received this deauth as a 1680 * response to a clear_state_mismatch() outgoing 1681 * deauth. Don't let it take us offline! 1682 */ 1683 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1684 "from Unknown BSSID " MACSTR " -- ignoring", 1685 MAC2STR(bssid)); 1686 return; 1687 } 1688 } 1689 1690 nl80211_mark_disconnected(drv); 1691 os_memset(&event, 0, sizeof(event)); 1692 1693 /* Note: Same offset for Reason Code in both frame subtypes */ 1694 if (len >= 24 + sizeof(mgmt->u.deauth)) 1695 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1696 1697 if (type == EVENT_DISASSOC) { 1698 event.disassoc_info.locally_generated = 1699 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1700 event.disassoc_info.addr = bssid; 1701 event.disassoc_info.reason_code = reason_code; 1702 if (frame + len > mgmt->u.disassoc.variable) { 1703 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1704 event.disassoc_info.ie_len = frame + len - 1705 mgmt->u.disassoc.variable; 1706 } 1707 } else { 1708 event.deauth_info.locally_generated = 1709 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1710 event.deauth_info.addr = bssid; 1711 event.deauth_info.reason_code = reason_code; 1712 if (frame + len > mgmt->u.deauth.variable) { 1713 event.deauth_info.ie = mgmt->u.deauth.variable; 1714 event.deauth_info.ie_len = frame + len - 1715 mgmt->u.deauth.variable; 1716 } 1717 } 1718 1719 wpa_supplicant_event(drv->ctx, type, &event); 1720} 1721 1722 1723static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1724 enum wpa_event_type type, 1725 const u8 *frame, size_t len) 1726{ 1727 const struct ieee80211_mgmt *mgmt; 1728 union wpa_event_data event; 1729 u16 reason_code = 0; 1730 1731 if (type == EVENT_UNPROT_DEAUTH) 1732 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1733 else 1734 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1735 1736 if (len < 24) 1737 return; 1738 1739 mgmt = (const struct ieee80211_mgmt *) frame; 1740 1741 os_memset(&event, 0, sizeof(event)); 1742 /* Note: Same offset for Reason Code in both frame subtypes */ 1743 if (len >= 24 + sizeof(mgmt->u.deauth)) 1744 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1745 1746 if (type == EVENT_UNPROT_DISASSOC) { 1747 event.unprot_disassoc.sa = mgmt->sa; 1748 event.unprot_disassoc.da = mgmt->da; 1749 event.unprot_disassoc.reason_code = reason_code; 1750 } else { 1751 event.unprot_deauth.sa = mgmt->sa; 1752 event.unprot_deauth.da = mgmt->da; 1753 event.unprot_deauth.reason_code = reason_code; 1754 } 1755 1756 wpa_supplicant_event(drv->ctx, type, &event); 1757} 1758 1759 1760static void mlme_event(struct i802_bss *bss, 1761 enum nl80211_commands cmd, struct nlattr *frame, 1762 struct nlattr *addr, struct nlattr *timed_out, 1763 struct nlattr *freq, struct nlattr *ack, 1764 struct nlattr *cookie, struct nlattr *sig) 1765{ 1766 struct wpa_driver_nl80211_data *drv = bss->drv; 1767 const u8 *data; 1768 size_t len; 1769 1770 if (timed_out && addr) { 1771 mlme_timeout_event(drv, cmd, addr); 1772 return; 1773 } 1774 1775 if (frame == NULL) { 1776 wpa_printf(MSG_DEBUG, 1777 "nl80211: MLME event %d (%s) without frame data", 1778 cmd, nl80211_command_to_string(cmd)); 1779 return; 1780 } 1781 1782 data = nla_data(frame); 1783 len = nla_len(frame); 1784 if (len < 4 + 2 * ETH_ALEN) { 1785 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1786 MACSTR ") - too short", 1787 cmd, nl80211_command_to_string(cmd), bss->ifname, 1788 MAC2STR(bss->addr)); 1789 return; 1790 } 1791 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1792 ") A1=" MACSTR " A2=" MACSTR, cmd, 1793 nl80211_command_to_string(cmd), bss->ifname, 1794 MAC2STR(bss->addr), MAC2STR(data + 4), 1795 MAC2STR(data + 4 + ETH_ALEN)); 1796 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1797 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1798 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1799 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1800 "for foreign address", bss->ifname); 1801 return; 1802 } 1803 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1804 nla_data(frame), nla_len(frame)); 1805 1806 switch (cmd) { 1807 case NL80211_CMD_AUTHENTICATE: 1808 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1809 break; 1810 case NL80211_CMD_ASSOCIATE: 1811 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1812 break; 1813 case NL80211_CMD_DEAUTHENTICATE: 1814 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1815 nla_data(frame), nla_len(frame)); 1816 break; 1817 case NL80211_CMD_DISASSOCIATE: 1818 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1819 nla_data(frame), nla_len(frame)); 1820 break; 1821 case NL80211_CMD_FRAME: 1822 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1823 nla_len(frame)); 1824 break; 1825 case NL80211_CMD_FRAME_TX_STATUS: 1826 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1827 nla_len(frame), ack); 1828 break; 1829 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1830 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1831 nla_data(frame), nla_len(frame)); 1832 break; 1833 case NL80211_CMD_UNPROT_DISASSOCIATE: 1834 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1835 nla_data(frame), nla_len(frame)); 1836 break; 1837 default: 1838 break; 1839 } 1840} 1841 1842 1843static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1844 struct nlattr *tb[]) 1845{ 1846 union wpa_event_data data; 1847 1848 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1849 os_memset(&data, 0, sizeof(data)); 1850 if (tb[NL80211_ATTR_MAC]) { 1851 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1852 nla_data(tb[NL80211_ATTR_MAC]), 1853 nla_len(tb[NL80211_ATTR_MAC])); 1854 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1855 } 1856 if (tb[NL80211_ATTR_KEY_SEQ]) { 1857 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1858 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1859 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1860 } 1861 if (tb[NL80211_ATTR_KEY_TYPE]) { 1862 enum nl80211_key_type key_type = 1863 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1864 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1865 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1866 data.michael_mic_failure.unicast = 1; 1867 } else 1868 data.michael_mic_failure.unicast = 1; 1869 1870 if (tb[NL80211_ATTR_KEY_IDX]) { 1871 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1872 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1873 } 1874 1875 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1876} 1877 1878 1879static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1880 struct nlattr *tb[]) 1881{ 1882 if (tb[NL80211_ATTR_MAC] == NULL) { 1883 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1884 "event"); 1885 return; 1886 } 1887 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1888 1889 drv->associated = 1; 1890 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1891 MAC2STR(drv->bssid)); 1892 1893 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1894} 1895 1896 1897static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1898 int cancel_event, struct nlattr *tb[]) 1899{ 1900 unsigned int freq, chan_type, duration; 1901 union wpa_event_data data; 1902 u64 cookie; 1903 1904 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1905 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1906 else 1907 freq = 0; 1908 1909 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1910 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1911 else 1912 chan_type = 0; 1913 1914 if (tb[NL80211_ATTR_DURATION]) 1915 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1916 else 1917 duration = 0; 1918 1919 if (tb[NL80211_ATTR_COOKIE]) 1920 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1921 else 1922 cookie = 0; 1923 1924 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1925 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1926 cancel_event, freq, chan_type, duration, 1927 (long long unsigned int) cookie, 1928 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1929 1930 if (cookie != drv->remain_on_chan_cookie) 1931 return; /* not for us */ 1932 1933 if (cancel_event) 1934 drv->pending_remain_on_chan = 0; 1935 1936 os_memset(&data, 0, sizeof(data)); 1937 data.remain_on_channel.freq = freq; 1938 data.remain_on_channel.duration = duration; 1939 wpa_supplicant_event(drv->ctx, cancel_event ? 1940 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1941 EVENT_REMAIN_ON_CHANNEL, &data); 1942} 1943 1944 1945static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1946 struct nlattr *tb[]) 1947{ 1948 union wpa_event_data data; 1949 1950 os_memset(&data, 0, sizeof(data)); 1951 1952 if (tb[NL80211_ATTR_IE]) { 1953 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1954 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1955 } 1956 1957 if (tb[NL80211_ATTR_IE_RIC]) { 1958 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1959 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1960 } 1961 1962 if (tb[NL80211_ATTR_MAC]) 1963 os_memcpy(data.ft_ies.target_ap, 1964 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1965 1966 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1967 MAC2STR(data.ft_ies.target_ap)); 1968 1969 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1970} 1971 1972 1973static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1974 struct nlattr *tb[]) 1975{ 1976 union wpa_event_data event; 1977 struct nlattr *nl; 1978 int rem; 1979 struct scan_info *info; 1980#define MAX_REPORT_FREQS 50 1981 int freqs[MAX_REPORT_FREQS]; 1982 int num_freqs = 0; 1983 1984 if (drv->scan_for_auth) { 1985 drv->scan_for_auth = 0; 1986 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1987 "cfg80211 BSS entry"); 1988 wpa_driver_nl80211_authenticate_retry(drv); 1989 return; 1990 } 1991 1992 os_memset(&event, 0, sizeof(event)); 1993 info = &event.scan_info; 1994 info->aborted = aborted; 1995 1996 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1997 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1998 struct wpa_driver_scan_ssid *s = 1999 &info->ssids[info->num_ssids]; 2000 s->ssid = nla_data(nl); 2001 s->ssid_len = nla_len(nl); 2002 info->num_ssids++; 2003 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 2004 break; 2005 } 2006 } 2007 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 2008 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 2009 { 2010 freqs[num_freqs] = nla_get_u32(nl); 2011 num_freqs++; 2012 if (num_freqs == MAX_REPORT_FREQS - 1) 2013 break; 2014 } 2015 info->freqs = freqs; 2016 info->num_freqs = num_freqs; 2017 } 2018 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 2019} 2020 2021 2022static int get_link_signal(struct nl_msg *msg, void *arg) 2023{ 2024 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2025 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2026 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 2027 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 2028 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 2029 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 2030 }; 2031 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 2032 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 2033 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 2034 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 2035 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 2036 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 2037 }; 2038 struct wpa_signal_info *sig_change = arg; 2039 2040 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2041 genlmsg_attrlen(gnlh, 0), NULL); 2042 if (!tb[NL80211_ATTR_STA_INFO] || 2043 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2044 tb[NL80211_ATTR_STA_INFO], policy)) 2045 return NL_SKIP; 2046 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2047 return NL_SKIP; 2048 2049 sig_change->current_signal = 2050 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2051 2052 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2053 sig_change->avg_signal = 2054 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2055 else 2056 sig_change->avg_signal = 0; 2057 2058 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2059 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2060 sinfo[NL80211_STA_INFO_TX_BITRATE], 2061 rate_policy)) { 2062 sig_change->current_txrate = 0; 2063 } else { 2064 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2065 sig_change->current_txrate = 2066 nla_get_u16(rinfo[ 2067 NL80211_RATE_INFO_BITRATE]) * 100; 2068 } 2069 } 2070 } 2071 2072 return NL_SKIP; 2073} 2074 2075 2076static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2077 struct wpa_signal_info *sig) 2078{ 2079 struct nl_msg *msg; 2080 2081 sig->current_signal = -9999; 2082 sig->current_txrate = 0; 2083 2084 msg = nlmsg_alloc(); 2085 if (!msg) 2086 return -ENOMEM; 2087 2088 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2089 2090 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2091 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2092 2093 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2094 nla_put_failure: 2095 nlmsg_free(msg); 2096 return -ENOBUFS; 2097} 2098 2099 2100static int get_link_noise(struct nl_msg *msg, void *arg) 2101{ 2102 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2103 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2104 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2105 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2106 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2107 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2108 }; 2109 struct wpa_signal_info *sig_change = arg; 2110 2111 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2112 genlmsg_attrlen(gnlh, 0), NULL); 2113 2114 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2115 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2116 return NL_SKIP; 2117 } 2118 2119 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2120 tb[NL80211_ATTR_SURVEY_INFO], 2121 survey_policy)) { 2122 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2123 "attributes!"); 2124 return NL_SKIP; 2125 } 2126 2127 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2128 return NL_SKIP; 2129 2130 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2131 sig_change->frequency) 2132 return NL_SKIP; 2133 2134 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2135 return NL_SKIP; 2136 2137 sig_change->current_noise = 2138 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2139 2140 return NL_SKIP; 2141} 2142 2143 2144static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2145 struct wpa_signal_info *sig_change) 2146{ 2147 struct nl_msg *msg; 2148 2149 sig_change->current_noise = 9999; 2150 sig_change->frequency = drv->assoc_freq; 2151 2152 msg = nlmsg_alloc(); 2153 if (!msg) 2154 return -ENOMEM; 2155 2156 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2157 2158 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2159 2160 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2161 nla_put_failure: 2162 nlmsg_free(msg); 2163 return -ENOBUFS; 2164} 2165 2166 2167static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2168{ 2169 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2170 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2171 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2172 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2173 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2174 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2175 }; 2176 struct wpa_scan_results *scan_results = arg; 2177 struct wpa_scan_res *scan_res; 2178 size_t i; 2179 2180 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2181 genlmsg_attrlen(gnlh, 0), NULL); 2182 2183 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2184 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2185 return NL_SKIP; 2186 } 2187 2188 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2189 tb[NL80211_ATTR_SURVEY_INFO], 2190 survey_policy)) { 2191 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2192 "attributes"); 2193 return NL_SKIP; 2194 } 2195 2196 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2197 return NL_SKIP; 2198 2199 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2200 return NL_SKIP; 2201 2202 for (i = 0; i < scan_results->num; ++i) { 2203 scan_res = scan_results->res[i]; 2204 if (!scan_res) 2205 continue; 2206 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2207 scan_res->freq) 2208 continue; 2209 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2210 continue; 2211 scan_res->noise = (s8) 2212 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2213 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2214 } 2215 2216 return NL_SKIP; 2217} 2218 2219 2220static int nl80211_get_noise_for_scan_results( 2221 struct wpa_driver_nl80211_data *drv, 2222 struct wpa_scan_results *scan_res) 2223{ 2224 struct nl_msg *msg; 2225 2226 msg = nlmsg_alloc(); 2227 if (!msg) 2228 return -ENOMEM; 2229 2230 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2231 2232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2233 2234 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2235 scan_res); 2236 nla_put_failure: 2237 nlmsg_free(msg); 2238 return -ENOBUFS; 2239} 2240 2241 2242static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2243 struct nlattr *tb[]) 2244{ 2245 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2246 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2247 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2248 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2249 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2250 }; 2251 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2252 enum nl80211_cqm_rssi_threshold_event event; 2253 union wpa_event_data ed; 2254 struct wpa_signal_info sig; 2255 int res; 2256 2257 if (tb[NL80211_ATTR_CQM] == NULL || 2258 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2259 cqm_policy)) { 2260 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2261 return; 2262 } 2263 2264 os_memset(&ed, 0, sizeof(ed)); 2265 2266 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2267 if (!tb[NL80211_ATTR_MAC]) 2268 return; 2269 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2270 ETH_ALEN); 2271 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2272 return; 2273 } 2274 2275 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2276 return; 2277 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2278 2279 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2280 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2281 "event: RSSI high"); 2282 ed.signal_change.above_threshold = 1; 2283 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2284 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2285 "event: RSSI low"); 2286 ed.signal_change.above_threshold = 0; 2287 } else 2288 return; 2289 2290 res = nl80211_get_link_signal(drv, &sig); 2291 if (res == 0) { 2292 ed.signal_change.current_signal = sig.current_signal; 2293 ed.signal_change.current_txrate = sig.current_txrate; 2294 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2295 sig.current_signal, sig.current_txrate); 2296 } 2297 2298 res = nl80211_get_link_noise(drv, &sig); 2299 if (res == 0) { 2300 ed.signal_change.current_noise = sig.current_noise; 2301 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2302 sig.current_noise); 2303 } 2304 2305 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2306} 2307 2308 2309static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2310 struct nlattr **tb) 2311{ 2312 u8 *addr; 2313 union wpa_event_data data; 2314 2315 if (tb[NL80211_ATTR_MAC] == NULL) 2316 return; 2317 addr = nla_data(tb[NL80211_ATTR_MAC]); 2318 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2319 2320 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2321 u8 *ies = NULL; 2322 size_t ies_len = 0; 2323 if (tb[NL80211_ATTR_IE]) { 2324 ies = nla_data(tb[NL80211_ATTR_IE]); 2325 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2326 } 2327 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2328 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2329 return; 2330 } 2331 2332 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2333 return; 2334 2335 os_memset(&data, 0, sizeof(data)); 2336 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2337 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2338} 2339 2340 2341static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2342 struct nlattr **tb) 2343{ 2344 u8 *addr; 2345 union wpa_event_data data; 2346 2347 if (tb[NL80211_ATTR_MAC] == NULL) 2348 return; 2349 addr = nla_data(tb[NL80211_ATTR_MAC]); 2350 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2351 MAC2STR(addr)); 2352 2353 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2354 drv_event_disassoc(drv->ctx, addr); 2355 return; 2356 } 2357 2358 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2359 return; 2360 2361 os_memset(&data, 0, sizeof(data)); 2362 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2363 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2364} 2365 2366 2367static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2368 struct nlattr **tb) 2369{ 2370 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2371 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2372 [NL80211_REKEY_DATA_KEK] = { 2373 .minlen = NL80211_KEK_LEN, 2374 .maxlen = NL80211_KEK_LEN, 2375 }, 2376 [NL80211_REKEY_DATA_KCK] = { 2377 .minlen = NL80211_KCK_LEN, 2378 .maxlen = NL80211_KCK_LEN, 2379 }, 2380 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2381 .minlen = NL80211_REPLAY_CTR_LEN, 2382 .maxlen = NL80211_REPLAY_CTR_LEN, 2383 }, 2384 }; 2385 union wpa_event_data data; 2386 2387 if (!tb[NL80211_ATTR_MAC]) 2388 return; 2389 if (!tb[NL80211_ATTR_REKEY_DATA]) 2390 return; 2391 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2392 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2393 return; 2394 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2395 return; 2396 2397 os_memset(&data, 0, sizeof(data)); 2398 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2399 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2400 MAC2STR(data.driver_gtk_rekey.bssid)); 2401 data.driver_gtk_rekey.replay_ctr = 2402 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2403 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2404 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2405 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2406} 2407 2408 2409static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2410 struct nlattr **tb) 2411{ 2412 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2413 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2414 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2415 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2416 .minlen = ETH_ALEN, 2417 .maxlen = ETH_ALEN, 2418 }, 2419 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2420 }; 2421 union wpa_event_data data; 2422 2423 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2424 2425 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2426 return; 2427 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2428 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2429 return; 2430 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2431 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2432 return; 2433 2434 os_memset(&data, 0, sizeof(data)); 2435 os_memcpy(data.pmkid_candidate.bssid, 2436 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2437 data.pmkid_candidate.index = 2438 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2439 data.pmkid_candidate.preauth = 2440 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2441 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2442} 2443 2444 2445static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2446 struct nlattr **tb) 2447{ 2448 union wpa_event_data data; 2449 2450 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2451 2452 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2453 return; 2454 2455 os_memset(&data, 0, sizeof(data)); 2456 os_memcpy(data.client_poll.addr, 2457 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2458 2459 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2460} 2461 2462 2463static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2464 struct nlattr **tb) 2465{ 2466 union wpa_event_data data; 2467 2468 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2469 2470 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2471 return; 2472 2473 os_memset(&data, 0, sizeof(data)); 2474 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2475 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2476 case NL80211_TDLS_SETUP: 2477 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2478 MACSTR, MAC2STR(data.tdls.peer)); 2479 data.tdls.oper = TDLS_REQUEST_SETUP; 2480 break; 2481 case NL80211_TDLS_TEARDOWN: 2482 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2483 MACSTR, MAC2STR(data.tdls.peer)); 2484 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2485 break; 2486 default: 2487 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2488 "event"); 2489 return; 2490 } 2491 if (tb[NL80211_ATTR_REASON_CODE]) { 2492 data.tdls.reason_code = 2493 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2494 } 2495 2496 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2497} 2498 2499 2500static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2501 struct nlattr **tb) 2502{ 2503 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2504} 2505 2506 2507static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2508 struct nlattr **tb) 2509{ 2510 union wpa_event_data data; 2511 u32 reason; 2512 2513 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2514 2515 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2516 return; 2517 2518 os_memset(&data, 0, sizeof(data)); 2519 os_memcpy(data.connect_failed_reason.addr, 2520 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2521 2522 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2523 switch (reason) { 2524 case NL80211_CONN_FAIL_MAX_CLIENTS: 2525 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2526 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2527 break; 2528 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2529 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2530 " tried to connect", 2531 MAC2STR(data.connect_failed_reason.addr)); 2532 data.connect_failed_reason.code = BLOCKED_CLIENT; 2533 break; 2534 default: 2535 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2536 "%u", reason); 2537 return; 2538 } 2539 2540 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2541} 2542 2543 2544static enum chan_width convert2width(int width); 2545 2546static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2547 struct nlattr **tb) 2548{ 2549 union wpa_event_data data; 2550 enum nl80211_radar_event event_type; 2551 2552 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2553 return; 2554 2555 os_memset(&data, 0, sizeof(data)); 2556 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 2557 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); 2558 2559 /* Check HT params */ 2560 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { 2561 data.dfs_event.ht_enabled = 1; 2562 data.dfs_event.chan_offset = 0; 2563 2564 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { 2565 case NL80211_CHAN_NO_HT: 2566 data.dfs_event.ht_enabled = 0; 2567 break; 2568 case NL80211_CHAN_HT20: 2569 break; 2570 case NL80211_CHAN_HT40PLUS: 2571 data.dfs_event.chan_offset = 1; 2572 break; 2573 case NL80211_CHAN_HT40MINUS: 2574 data.dfs_event.chan_offset = -1; 2575 break; 2576 } 2577 } 2578 2579 /* Get VHT params */ 2580 data.dfs_event.chan_width = 2581 convert2width(nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 2582 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 2583 if (tb[NL80211_ATTR_CENTER_FREQ2]) 2584 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 2585 2586 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", 2587 data.dfs_event.freq, data.dfs_event.ht_enabled, 2588 data.dfs_event.chan_offset, data.dfs_event.chan_width, 2589 data.dfs_event.cf1, data.dfs_event.cf2); 2590 2591 switch (event_type) { 2592 case NL80211_RADAR_DETECTED: 2593 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2594 break; 2595 case NL80211_RADAR_CAC_FINISHED: 2596 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2597 break; 2598 case NL80211_RADAR_CAC_ABORTED: 2599 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2600 break; 2601 case NL80211_RADAR_NOP_FINISHED: 2602 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2603 break; 2604 default: 2605 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2606 "received", event_type); 2607 break; 2608 } 2609} 2610 2611 2612static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2613 int wds) 2614{ 2615 struct wpa_driver_nl80211_data *drv = bss->drv; 2616 union wpa_event_data event; 2617 2618 if (!tb[NL80211_ATTR_MAC]) 2619 return; 2620 2621 os_memset(&event, 0, sizeof(event)); 2622 event.rx_from_unknown.bssid = bss->addr; 2623 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2624 event.rx_from_unknown.wds = wds; 2625 2626 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2627} 2628 2629 2630static void do_process_drv_event(struct i802_bss *bss, int cmd, 2631 struct nlattr **tb) 2632{ 2633 struct wpa_driver_nl80211_data *drv = bss->drv; 2634 2635 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2636 cmd, nl80211_command_to_string(cmd), bss->ifname); 2637 2638 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2639 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2640 cmd == NL80211_CMD_SCAN_ABORTED)) { 2641 wpa_driver_nl80211_set_mode(&drv->first_bss, 2642 drv->ap_scan_as_station); 2643 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2644 } 2645 2646 switch (cmd) { 2647 case NL80211_CMD_TRIGGER_SCAN: 2648 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2649 drv->scan_state = SCAN_STARTED; 2650 break; 2651 case NL80211_CMD_START_SCHED_SCAN: 2652 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2653 drv->scan_state = SCHED_SCAN_STARTED; 2654 break; 2655 case NL80211_CMD_SCHED_SCAN_STOPPED: 2656 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2657 drv->scan_state = SCHED_SCAN_STOPPED; 2658 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2659 break; 2660 case NL80211_CMD_NEW_SCAN_RESULTS: 2661 wpa_dbg(drv->ctx, MSG_DEBUG, 2662 "nl80211: New scan results available"); 2663 drv->scan_state = SCAN_COMPLETED; 2664 drv->scan_complete_events = 1; 2665 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2666 drv->ctx); 2667 send_scan_event(drv, 0, tb); 2668 break; 2669 case NL80211_CMD_SCHED_SCAN_RESULTS: 2670 wpa_dbg(drv->ctx, MSG_DEBUG, 2671 "nl80211: New sched scan results available"); 2672 drv->scan_state = SCHED_SCAN_RESULTS; 2673 send_scan_event(drv, 0, tb); 2674 break; 2675 case NL80211_CMD_SCAN_ABORTED: 2676 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2677 drv->scan_state = SCAN_ABORTED; 2678 /* 2679 * Need to indicate that scan results are available in order 2680 * not to make wpa_supplicant stop its scanning. 2681 */ 2682 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2683 drv->ctx); 2684 send_scan_event(drv, 1, tb); 2685 break; 2686 case NL80211_CMD_AUTHENTICATE: 2687 case NL80211_CMD_ASSOCIATE: 2688 case NL80211_CMD_DEAUTHENTICATE: 2689 case NL80211_CMD_DISASSOCIATE: 2690 case NL80211_CMD_FRAME_TX_STATUS: 2691 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2692 case NL80211_CMD_UNPROT_DISASSOCIATE: 2693 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2694 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2695 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2696 tb[NL80211_ATTR_COOKIE], 2697 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2698 break; 2699 case NL80211_CMD_CONNECT: 2700 case NL80211_CMD_ROAM: 2701 mlme_event_connect(drv, cmd, 2702 tb[NL80211_ATTR_STATUS_CODE], 2703 tb[NL80211_ATTR_MAC], 2704 tb[NL80211_ATTR_REQ_IE], 2705 tb[NL80211_ATTR_RESP_IE]); 2706 break; 2707 case NL80211_CMD_CH_SWITCH_NOTIFY: 2708 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2709 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2710 break; 2711 case NL80211_CMD_DISCONNECT: 2712 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2713 tb[NL80211_ATTR_MAC], 2714 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2715 break; 2716 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2717 mlme_event_michael_mic_failure(bss, tb); 2718 break; 2719 case NL80211_CMD_JOIN_IBSS: 2720 mlme_event_join_ibss(drv, tb); 2721 break; 2722 case NL80211_CMD_REMAIN_ON_CHANNEL: 2723 mlme_event_remain_on_channel(drv, 0, tb); 2724 break; 2725 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2726 mlme_event_remain_on_channel(drv, 1, tb); 2727 break; 2728 case NL80211_CMD_NOTIFY_CQM: 2729 nl80211_cqm_event(drv, tb); 2730 break; 2731 case NL80211_CMD_REG_CHANGE: 2732 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2733 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2734 NULL); 2735 break; 2736 case NL80211_CMD_REG_BEACON_HINT: 2737 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2738 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2739 NULL); 2740 break; 2741 case NL80211_CMD_NEW_STATION: 2742 nl80211_new_station_event(drv, tb); 2743 break; 2744 case NL80211_CMD_DEL_STATION: 2745 nl80211_del_station_event(drv, tb); 2746 break; 2747 case NL80211_CMD_SET_REKEY_OFFLOAD: 2748 nl80211_rekey_offload_event(drv, tb); 2749 break; 2750 case NL80211_CMD_PMKSA_CANDIDATE: 2751 nl80211_pmksa_candidate_event(drv, tb); 2752 break; 2753 case NL80211_CMD_PROBE_CLIENT: 2754 nl80211_client_probe_event(drv, tb); 2755 break; 2756 case NL80211_CMD_TDLS_OPER: 2757 nl80211_tdls_oper_event(drv, tb); 2758 break; 2759 case NL80211_CMD_CONN_FAILED: 2760 nl80211_connect_failed_event(drv, tb); 2761 break; 2762 case NL80211_CMD_FT_EVENT: 2763 mlme_event_ft_event(drv, tb); 2764 break; 2765 case NL80211_CMD_RADAR_DETECT: 2766 nl80211_radar_event(drv, tb); 2767 break; 2768 case NL80211_CMD_STOP_AP: 2769 nl80211_stop_ap(drv, tb); 2770 break; 2771 default: 2772 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2773 "(cmd=%d)", cmd); 2774 break; 2775 } 2776} 2777 2778 2779static int process_drv_event(struct nl_msg *msg, void *arg) 2780{ 2781 struct wpa_driver_nl80211_data *drv = arg; 2782 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2783 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2784 struct i802_bss *bss; 2785 int ifidx = -1; 2786 2787 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2788 genlmsg_attrlen(gnlh, 0), NULL); 2789 2790 if (tb[NL80211_ATTR_IFINDEX]) { 2791 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2792 2793 for (bss = &drv->first_bss; bss; bss = bss->next) 2794 if (ifidx == -1 || ifidx == bss->ifindex) { 2795 do_process_drv_event(bss, gnlh->cmd, tb); 2796 return NL_SKIP; 2797 } 2798 wpa_printf(MSG_DEBUG, 2799 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2800 gnlh->cmd, ifidx); 2801 } else if (tb[NL80211_ATTR_WDEV]) { 2802 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2803 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2804 for (bss = &drv->first_bss; bss; bss = bss->next) { 2805 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2806 do_process_drv_event(bss, gnlh->cmd, tb); 2807 return NL_SKIP; 2808 } 2809 } 2810 wpa_printf(MSG_DEBUG, 2811 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2812 gnlh->cmd, (long long unsigned int) wdev_id); 2813 } 2814 2815 return NL_SKIP; 2816} 2817 2818 2819static int process_global_event(struct nl_msg *msg, void *arg) 2820{ 2821 struct nl80211_global *global = arg; 2822 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2823 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2824 struct wpa_driver_nl80211_data *drv, *tmp; 2825 int ifidx = -1; 2826 struct i802_bss *bss; 2827 u64 wdev_id = 0; 2828 int wdev_id_set = 0; 2829 2830 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2831 genlmsg_attrlen(gnlh, 0), NULL); 2832 2833 if (tb[NL80211_ATTR_IFINDEX]) 2834 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2835 else if (tb[NL80211_ATTR_WDEV]) { 2836 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2837 wdev_id_set = 1; 2838 } 2839 2840 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2841 struct wpa_driver_nl80211_data, list) { 2842 for (bss = &drv->first_bss; bss; bss = bss->next) { 2843 if ((ifidx == -1 && !wdev_id_set) || 2844 ifidx == bss->ifindex || 2845 (wdev_id_set && bss->wdev_id_set && 2846 wdev_id == bss->wdev_id)) { 2847 do_process_drv_event(bss, gnlh->cmd, tb); 2848 return NL_SKIP; 2849 } 2850 } 2851 } 2852 2853 return NL_SKIP; 2854} 2855 2856 2857static int process_bss_event(struct nl_msg *msg, void *arg) 2858{ 2859 struct i802_bss *bss = arg; 2860 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2861 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2862 2863 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2864 genlmsg_attrlen(gnlh, 0), NULL); 2865 2866 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2867 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2868 bss->ifname); 2869 2870 switch (gnlh->cmd) { 2871 case NL80211_CMD_FRAME: 2872 case NL80211_CMD_FRAME_TX_STATUS: 2873 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2874 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2875 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2876 tb[NL80211_ATTR_COOKIE], 2877 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2878 break; 2879 case NL80211_CMD_UNEXPECTED_FRAME: 2880 nl80211_spurious_frame(bss, tb, 0); 2881 break; 2882 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2883 nl80211_spurious_frame(bss, tb, 1); 2884 break; 2885 default: 2886 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2887 "(cmd=%d)", gnlh->cmd); 2888 break; 2889 } 2890 2891 return NL_SKIP; 2892} 2893 2894 2895static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2896 void *handle) 2897{ 2898 struct nl_cb *cb = eloop_ctx; 2899 int res; 2900 2901 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2902 2903 res = nl_recvmsgs(handle, cb); 2904 if (res) { 2905 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 2906 __func__, res); 2907 } 2908} 2909 2910 2911/** 2912 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2913 * @priv: driver_nl80211 private data 2914 * @alpha2_arg: country to which to switch to 2915 * Returns: 0 on success, -1 on failure 2916 * 2917 * This asks nl80211 to set the regulatory domain for given 2918 * country ISO / IEC alpha2. 2919 */ 2920static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2921{ 2922 struct i802_bss *bss = priv; 2923 struct wpa_driver_nl80211_data *drv = bss->drv; 2924 char alpha2[3]; 2925 struct nl_msg *msg; 2926 2927 msg = nlmsg_alloc(); 2928 if (!msg) 2929 return -ENOMEM; 2930 2931 alpha2[0] = alpha2_arg[0]; 2932 alpha2[1] = alpha2_arg[1]; 2933 alpha2[2] = '\0'; 2934 2935 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2936 2937 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2938 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2939 return -EINVAL; 2940 return 0; 2941nla_put_failure: 2942 nlmsg_free(msg); 2943 return -EINVAL; 2944} 2945 2946 2947static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2948{ 2949 u32 *feat = arg; 2950 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2951 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2952 2953 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2954 genlmsg_attrlen(gnlh, 0), NULL); 2955 2956 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2957 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2958 2959 return NL_SKIP; 2960} 2961 2962 2963static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2964{ 2965 u32 feat = 0; 2966 struct nl_msg *msg; 2967 2968 msg = nlmsg_alloc(); 2969 if (!msg) 2970 goto nla_put_failure; 2971 2972 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2973 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2974 return feat; 2975 2976 msg = NULL; 2977nla_put_failure: 2978 nlmsg_free(msg); 2979 return 0; 2980} 2981 2982 2983struct wiphy_info_data { 2984 struct wpa_driver_nl80211_data *drv; 2985 struct wpa_driver_capa *capa; 2986 2987 unsigned int num_multichan_concurrent; 2988 2989 unsigned int error:1; 2990 unsigned int device_ap_sme:1; 2991 unsigned int poll_command_supported:1; 2992 unsigned int data_tx_status:1; 2993 unsigned int monitor_supported:1; 2994 unsigned int auth_supported:1; 2995 unsigned int connect_supported:1; 2996 unsigned int p2p_go_supported:1; 2997 unsigned int p2p_client_supported:1; 2998 unsigned int p2p_concurrent:1; 2999}; 3000 3001 3002static unsigned int probe_resp_offload_support(int supp_protocols) 3003{ 3004 unsigned int prot = 0; 3005 3006 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 3007 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 3008 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 3009 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 3010 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 3011 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 3012 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 3013 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 3014 3015 return prot; 3016} 3017 3018 3019static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 3020 struct nlattr *tb) 3021{ 3022 struct nlattr *nl_mode; 3023 int i; 3024 3025 if (tb == NULL) 3026 return; 3027 3028 nla_for_each_nested(nl_mode, tb, i) { 3029 switch (nla_type(nl_mode)) { 3030 case NL80211_IFTYPE_AP: 3031 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 3032 break; 3033 case NL80211_IFTYPE_ADHOC: 3034 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 3035 break; 3036 case NL80211_IFTYPE_P2P_DEVICE: 3037 info->capa->flags |= 3038 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 3039 break; 3040 case NL80211_IFTYPE_P2P_GO: 3041 info->p2p_go_supported = 1; 3042 break; 3043 case NL80211_IFTYPE_P2P_CLIENT: 3044 info->p2p_client_supported = 1; 3045 break; 3046 case NL80211_IFTYPE_MONITOR: 3047 info->monitor_supported = 1; 3048 break; 3049 } 3050 } 3051} 3052 3053 3054static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 3055 struct nlattr *nl_combi) 3056{ 3057 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 3058 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 3059 struct nlattr *nl_limit, *nl_mode; 3060 int err, rem_limit, rem_mode; 3061 int combination_has_p2p = 0, combination_has_mgd = 0; 3062 static struct nla_policy 3063 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 3064 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 3065 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 3066 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 3067 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 3068 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 3069 }, 3070 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 3071 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 3072 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 3073 }; 3074 3075 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 3076 nl_combi, iface_combination_policy); 3077 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 3078 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 3079 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 3080 return 0; /* broken combination */ 3081 3082 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 3083 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3084 3085 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3086 rem_limit) { 3087 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3088 nl_limit, iface_limit_policy); 3089 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3090 return 0; /* broken combination */ 3091 3092 nla_for_each_nested(nl_mode, 3093 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3094 rem_mode) { 3095 int ift = nla_type(nl_mode); 3096 if (ift == NL80211_IFTYPE_P2P_GO || 3097 ift == NL80211_IFTYPE_P2P_CLIENT) 3098 combination_has_p2p = 1; 3099 if (ift == NL80211_IFTYPE_STATION) 3100 combination_has_mgd = 1; 3101 } 3102 if (combination_has_p2p && combination_has_mgd) 3103 break; 3104 } 3105 3106 if (combination_has_p2p && combination_has_mgd) { 3107 info->p2p_concurrent = 1; 3108 info->num_multichan_concurrent = 3109 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3110 return 1; 3111 } 3112 3113 return 0; 3114} 3115 3116 3117static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3118 struct nlattr *tb) 3119{ 3120 struct nlattr *nl_combi; 3121 int rem_combi; 3122 3123 if (tb == NULL) 3124 return; 3125 3126 nla_for_each_nested(nl_combi, tb, rem_combi) { 3127 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3128 break; 3129 } 3130} 3131 3132 3133static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3134 struct nlattr *tb) 3135{ 3136 struct nlattr *nl_cmd; 3137 int i; 3138 3139 if (tb == NULL) 3140 return; 3141 3142 nla_for_each_nested(nl_cmd, tb, i) { 3143 switch (nla_get_u32(nl_cmd)) { 3144 case NL80211_CMD_AUTHENTICATE: 3145 info->auth_supported = 1; 3146 break; 3147 case NL80211_CMD_CONNECT: 3148 info->connect_supported = 1; 3149 break; 3150 case NL80211_CMD_START_SCHED_SCAN: 3151 info->capa->sched_scan_supported = 1; 3152 break; 3153 case NL80211_CMD_PROBE_CLIENT: 3154 info->poll_command_supported = 1; 3155 break; 3156 } 3157 } 3158} 3159 3160 3161static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3162 struct nlattr *tb) 3163{ 3164 if (tb) 3165 capa->max_remain_on_chan = nla_get_u32(tb); 3166} 3167 3168 3169static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3170 struct nlattr *ext_setup) 3171{ 3172 if (tdls == NULL) 3173 return; 3174 3175 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3176 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3177 3178 if (ext_setup) { 3179 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3180 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3181 } 3182} 3183 3184 3185static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3186 struct nlattr *tb) 3187{ 3188 u32 flags; 3189 struct wpa_driver_capa *capa = info->capa; 3190 3191 if (tb == NULL) 3192 return; 3193 3194 flags = nla_get_u32(tb); 3195 3196 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3197 info->data_tx_status = 1; 3198 3199 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3200 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3201 3202 if (flags & NL80211_FEATURE_SAE) 3203 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3204 3205 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3206 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3207} 3208 3209 3210static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3211 struct nlattr *tb) 3212{ 3213 u32 protocols; 3214 3215 if (tb == NULL) 3216 return; 3217 3218 protocols = nla_get_u32(tb); 3219 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3220 "mode"); 3221 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3222 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3223} 3224 3225 3226static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3227{ 3228 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3229 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3230 struct wiphy_info_data *info = arg; 3231 struct wpa_driver_capa *capa = info->capa; 3232 struct wpa_driver_nl80211_data *drv = info->drv; 3233 3234 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3235 genlmsg_attrlen(gnlh, 0), NULL); 3236 3237 if (tb[NL80211_ATTR_WIPHY_NAME]) 3238 os_strlcpy(drv->phyname, 3239 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3240 sizeof(drv->phyname)); 3241 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3242 capa->max_scan_ssids = 3243 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3244 3245 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3246 capa->max_sched_scan_ssids = 3247 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3248 3249 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3250 capa->max_match_sets = 3251 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3252 3253 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3254 capa->max_acl_mac_addrs = 3255 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3256 3257 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3258 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3259 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3260 3261 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3262 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3263 "off-channel TX"); 3264 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3265 } 3266 3267 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3268 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3269 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3270 } 3271 3272 wiphy_info_max_roc(capa, 3273 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3274 3275 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3276 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3277 3278 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3279 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3280 3281 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3282 info->device_ap_sme = 1; 3283 3284 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3285 wiphy_info_probe_resp_offload(capa, 3286 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3287 3288 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3289 drv->extended_capa == NULL) { 3290 drv->extended_capa = 3291 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3292 if (drv->extended_capa) { 3293 os_memcpy(drv->extended_capa, 3294 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3295 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3296 drv->extended_capa_len = 3297 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3298 } 3299 drv->extended_capa_mask = 3300 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3301 if (drv->extended_capa_mask) { 3302 os_memcpy(drv->extended_capa_mask, 3303 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3304 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3305 } else { 3306 os_free(drv->extended_capa); 3307 drv->extended_capa = NULL; 3308 drv->extended_capa_len = 0; 3309 } 3310 } 3311 3312 return NL_SKIP; 3313} 3314 3315 3316static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3317 struct wiphy_info_data *info) 3318{ 3319 u32 feat; 3320 struct nl_msg *msg; 3321 3322 os_memset(info, 0, sizeof(*info)); 3323 info->capa = &drv->capa; 3324 info->drv = drv; 3325 3326 msg = nlmsg_alloc(); 3327 if (!msg) 3328 return -1; 3329 3330 feat = get_nl80211_protocol_features(drv); 3331 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3332 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3333 else 3334 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3335 3336 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3337 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3338 goto nla_put_failure; 3339 3340 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3341 return -1; 3342 3343 if (info->auth_supported) 3344 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3345 else if (!info->connect_supported) { 3346 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3347 "authentication/association or connect commands"); 3348 info->error = 1; 3349 } 3350 3351 if (info->p2p_go_supported && info->p2p_client_supported) 3352 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3353 if (info->p2p_concurrent) { 3354 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3355 "interface (driver advertised support)"); 3356 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3357 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3358 } 3359 if (info->num_multichan_concurrent > 1) { 3360 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3361 "concurrent (driver advertised support)"); 3362 drv->capa.num_multichan_concurrent = 3363 info->num_multichan_concurrent; 3364 } 3365 3366 /* default to 5000 since early versions of mac80211 don't set it */ 3367 if (!drv->capa.max_remain_on_chan) 3368 drv->capa.max_remain_on_chan = 5000; 3369 3370 return 0; 3371nla_put_failure: 3372 nlmsg_free(msg); 3373 return -1; 3374} 3375 3376 3377static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3378{ 3379 struct wiphy_info_data info; 3380 if (wpa_driver_nl80211_get_info(drv, &info)) 3381 return -1; 3382 3383 if (info.error) 3384 return -1; 3385 3386 drv->has_capability = 1; 3387 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3388 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3389 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3390 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3391 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3392 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3393 WPA_DRIVER_CAPA_ENC_WEP104 | 3394 WPA_DRIVER_CAPA_ENC_TKIP | 3395 WPA_DRIVER_CAPA_ENC_CCMP; 3396 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3397 WPA_DRIVER_AUTH_SHARED | 3398 WPA_DRIVER_AUTH_LEAP; 3399 3400 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3401 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3402 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3403 3404 if (!info.device_ap_sme) { 3405 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3406 3407 /* 3408 * No AP SME is currently assumed to also indicate no AP MLME 3409 * in the driver/firmware. 3410 */ 3411 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3412 } 3413 3414 drv->device_ap_sme = info.device_ap_sme; 3415 drv->poll_command_supported = info.poll_command_supported; 3416 drv->data_tx_status = info.data_tx_status; 3417 3418#ifdef ANDROID_P2P 3419 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3420 /* Driver is new enough to support monitorless mode*/ 3421 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3422 "enough to support monitor-less mode"); 3423 drv->use_monitor = 0; 3424 } 3425#else 3426 /* 3427 * If poll command and tx status are supported, mac80211 is new enough 3428 * to have everything we need to not need monitor interfaces. 3429 */ 3430 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3431#endif 3432 3433 if (drv->device_ap_sme && drv->use_monitor) { 3434 /* 3435 * Non-mac80211 drivers may not support monitor interface. 3436 * Make sure we do not get stuck with incorrect capability here 3437 * by explicitly testing this. 3438 */ 3439 if (!info.monitor_supported) { 3440 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3441 "with device_ap_sme since no monitor mode " 3442 "support detected"); 3443 drv->use_monitor = 0; 3444 } 3445 } 3446 3447 /* 3448 * If we aren't going to use monitor interfaces, but the 3449 * driver doesn't support data TX status, we won't get TX 3450 * status for EAPOL frames. 3451 */ 3452 if (!drv->use_monitor && !info.data_tx_status) 3453 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3454 3455 return 0; 3456} 3457 3458 3459#ifdef ANDROID 3460static int android_genl_ctrl_resolve(struct nl_handle *handle, 3461 const char *name) 3462{ 3463 /* 3464 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3465 * need to work around that. 3466 */ 3467 struct nl_cache *cache = NULL; 3468 struct genl_family *nl80211 = NULL; 3469 int id = -1; 3470 3471 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3472 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3473 "netlink cache"); 3474 goto fail; 3475 } 3476 3477 nl80211 = genl_ctrl_search_by_name(cache, name); 3478 if (nl80211 == NULL) 3479 goto fail; 3480 3481 id = genl_family_get_id(nl80211); 3482 3483fail: 3484 if (nl80211) 3485 genl_family_put(nl80211); 3486 if (cache) 3487 nl_cache_free(cache); 3488 3489 return id; 3490} 3491#define genl_ctrl_resolve android_genl_ctrl_resolve 3492#endif /* ANDROID */ 3493 3494 3495static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3496{ 3497 int ret; 3498 3499 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3500 if (global->nl_cb == NULL) { 3501 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3502 "callbacks"); 3503 return -1; 3504 } 3505 3506 global->nl = nl_create_handle(global->nl_cb, "nl"); 3507 if (global->nl == NULL) 3508 goto err; 3509 3510 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3511 if (global->nl80211_id < 0) { 3512 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3513 "found"); 3514 goto err; 3515 } 3516 3517 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3518 if (global->nl_event == NULL) 3519 goto err; 3520 3521 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3522 if (ret >= 0) 3523 ret = nl_socket_add_membership(global->nl_event, ret); 3524 if (ret < 0) { 3525 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3526 "membership for scan events: %d (%s)", 3527 ret, strerror(-ret)); 3528 goto err; 3529 } 3530 3531 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3532 if (ret >= 0) 3533 ret = nl_socket_add_membership(global->nl_event, ret); 3534 if (ret < 0) { 3535 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3536 "membership for mlme events: %d (%s)", 3537 ret, strerror(-ret)); 3538 goto err; 3539 } 3540 3541 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3542 if (ret >= 0) 3543 ret = nl_socket_add_membership(global->nl_event, ret); 3544 if (ret < 0) { 3545 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3546 "membership for regulatory events: %d (%s)", 3547 ret, strerror(-ret)); 3548 /* Continue without regulatory events */ 3549 } 3550 3551 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3552 no_seq_check, NULL); 3553 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3554 process_global_event, global); 3555 3556 nl80211_register_eloop_read(&global->nl_event, 3557 wpa_driver_nl80211_event_receive, 3558 global->nl_cb); 3559 3560 return 0; 3561 3562err: 3563 nl_destroy_handles(&global->nl_event); 3564 nl_destroy_handles(&global->nl); 3565 nl_cb_put(global->nl_cb); 3566 global->nl_cb = NULL; 3567 return -1; 3568} 3569 3570 3571static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3572{ 3573 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3574 if (!drv->nl_cb) { 3575 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3576 return -1; 3577 } 3578 3579 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3580 no_seq_check, NULL); 3581 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3582 process_drv_event, drv); 3583 3584 return 0; 3585} 3586 3587 3588static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3589{ 3590 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3591 /* 3592 * This may be for any interface; use ifdown event to disable 3593 * interface. 3594 */ 3595} 3596 3597 3598static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3599{ 3600 struct wpa_driver_nl80211_data *drv = ctx; 3601 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3602 if (i802_set_iface_flags(&drv->first_bss, 1)) { 3603 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3604 "after rfkill unblock"); 3605 return; 3606 } 3607 /* rtnetlink ifup handler will report interface as enabled */ 3608} 3609 3610 3611static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3612 void *eloop_ctx, 3613 void *handle) 3614{ 3615 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3616 u8 data[2048]; 3617 struct msghdr msg; 3618 struct iovec entry; 3619 u8 control[512]; 3620 struct cmsghdr *cmsg; 3621 int res, found_ee = 0, found_wifi = 0, acked = 0; 3622 union wpa_event_data event; 3623 3624 memset(&msg, 0, sizeof(msg)); 3625 msg.msg_iov = &entry; 3626 msg.msg_iovlen = 1; 3627 entry.iov_base = data; 3628 entry.iov_len = sizeof(data); 3629 msg.msg_control = &control; 3630 msg.msg_controllen = sizeof(control); 3631 3632 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3633 /* if error or not fitting 802.3 header, return */ 3634 if (res < 14) 3635 return; 3636 3637 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3638 { 3639 if (cmsg->cmsg_level == SOL_SOCKET && 3640 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3641 int *ack; 3642 3643 found_wifi = 1; 3644 ack = (void *)CMSG_DATA(cmsg); 3645 acked = *ack; 3646 } 3647 3648 if (cmsg->cmsg_level == SOL_PACKET && 3649 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3650 struct sock_extended_err *err = 3651 (struct sock_extended_err *)CMSG_DATA(cmsg); 3652 3653 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3654 found_ee = 1; 3655 } 3656 } 3657 3658 if (!found_ee || !found_wifi) 3659 return; 3660 3661 memset(&event, 0, sizeof(event)); 3662 event.eapol_tx_status.dst = data; 3663 event.eapol_tx_status.data = data + 14; 3664 event.eapol_tx_status.data_len = res - 14; 3665 event.eapol_tx_status.ack = acked; 3666 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3667} 3668 3669 3670static int nl80211_init_bss(struct i802_bss *bss) 3671{ 3672 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3673 if (!bss->nl_cb) 3674 return -1; 3675 3676 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3677 no_seq_check, NULL); 3678 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3679 process_bss_event, bss); 3680 3681 return 0; 3682} 3683 3684 3685static void nl80211_destroy_bss(struct i802_bss *bss) 3686{ 3687 nl_cb_put(bss->nl_cb); 3688 bss->nl_cb = NULL; 3689} 3690 3691 3692/** 3693 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3694 * @ctx: context to be used when calling wpa_supplicant functions, 3695 * e.g., wpa_supplicant_event() 3696 * @ifname: interface name, e.g., wlan0 3697 * @global_priv: private driver global data from global_init() 3698 * Returns: Pointer to private data, %NULL on failure 3699 */ 3700static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3701 void *global_priv) 3702{ 3703 struct wpa_driver_nl80211_data *drv; 3704 struct rfkill_config *rcfg; 3705 struct i802_bss *bss; 3706 3707 if (global_priv == NULL) 3708 return NULL; 3709 drv = os_zalloc(sizeof(*drv)); 3710 if (drv == NULL) 3711 return NULL; 3712 drv->global = global_priv; 3713 drv->ctx = ctx; 3714 bss = &drv->first_bss; 3715 bss->drv = drv; 3716 bss->ctx = ctx; 3717 3718 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3719 drv->monitor_ifidx = -1; 3720 drv->monitor_sock = -1; 3721 drv->eapol_tx_sock = -1; 3722 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3723 3724 if (wpa_driver_nl80211_init_nl(drv)) { 3725 os_free(drv); 3726 return NULL; 3727 } 3728 3729 if (nl80211_init_bss(bss)) 3730 goto failed; 3731 3732 rcfg = os_zalloc(sizeof(*rcfg)); 3733 if (rcfg == NULL) 3734 goto failed; 3735 rcfg->ctx = drv; 3736 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3737 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3738 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3739 drv->rfkill = rfkill_init(rcfg); 3740 if (drv->rfkill == NULL) { 3741 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3742 os_free(rcfg); 3743 } 3744 3745 if (wpa_driver_nl80211_finish_drv_init(drv)) 3746 goto failed; 3747 3748 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3749 if (drv->eapol_tx_sock < 0) 3750 goto failed; 3751 3752 if (drv->data_tx_status) { 3753 int enabled = 1; 3754 3755 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3756 &enabled, sizeof(enabled)) < 0) { 3757 wpa_printf(MSG_DEBUG, 3758 "nl80211: wifi status sockopt failed\n"); 3759 drv->data_tx_status = 0; 3760 if (!drv->use_monitor) 3761 drv->capa.flags &= 3762 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3763 } else { 3764 eloop_register_read_sock(drv->eapol_tx_sock, 3765 wpa_driver_nl80211_handle_eapol_tx_status, 3766 drv, NULL); 3767 } 3768 } 3769 3770 if (drv->global) { 3771 dl_list_add(&drv->global->interfaces, &drv->list); 3772 drv->in_interface_list = 1; 3773 } 3774 3775 return bss; 3776 3777failed: 3778 wpa_driver_nl80211_deinit(bss); 3779 return NULL; 3780} 3781 3782 3783static int nl80211_register_frame(struct i802_bss *bss, 3784 struct nl_handle *nl_handle, 3785 u16 type, const u8 *match, size_t match_len) 3786{ 3787 struct wpa_driver_nl80211_data *drv = bss->drv; 3788 struct nl_msg *msg; 3789 int ret = -1; 3790 3791 msg = nlmsg_alloc(); 3792 if (!msg) 3793 return -1; 3794 3795 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3796 type, nl_handle); 3797 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3798 match, match_len); 3799 3800 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3801 3802 if (nl80211_set_iface_id(msg, bss) < 0) 3803 goto nla_put_failure; 3804 3805 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3806 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3807 3808 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3809 msg = NULL; 3810 if (ret) { 3811 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3812 "failed (type=%u): ret=%d (%s)", 3813 type, ret, strerror(-ret)); 3814 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3815 match, match_len); 3816 goto nla_put_failure; 3817 } 3818 ret = 0; 3819nla_put_failure: 3820 nlmsg_free(msg); 3821 return ret; 3822} 3823 3824 3825static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3826{ 3827 struct wpa_driver_nl80211_data *drv = bss->drv; 3828 3829 if (bss->nl_mgmt) { 3830 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3831 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3832 return -1; 3833 } 3834 3835 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3836 if (bss->nl_mgmt == NULL) 3837 return -1; 3838 3839 return 0; 3840} 3841 3842 3843static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 3844{ 3845 nl80211_register_eloop_read(&bss->nl_mgmt, 3846 wpa_driver_nl80211_event_receive, 3847 bss->nl_cb); 3848} 3849 3850 3851static int nl80211_register_action_frame(struct i802_bss *bss, 3852 const u8 *match, size_t match_len) 3853{ 3854 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3855 return nl80211_register_frame(bss, bss->nl_mgmt, 3856 type, match, match_len); 3857} 3858 3859 3860static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3861{ 3862 struct wpa_driver_nl80211_data *drv = bss->drv; 3863 3864 if (nl80211_alloc_mgmt_handle(bss)) 3865 return -1; 3866 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3867 "handle %p", bss->nl_mgmt); 3868 3869 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 3870 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 3871 3872 /* register for any AUTH message */ 3873 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 3874 } 3875 3876#ifdef CONFIG_INTERWORKING 3877 /* QoS Map Configure */ 3878 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 3879 return -1; 3880#endif /* CONFIG_INTERWORKING */ 3881#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3882 /* GAS Initial Request */ 3883 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3884 return -1; 3885 /* GAS Initial Response */ 3886 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3887 return -1; 3888 /* GAS Comeback Request */ 3889 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3890 return -1; 3891 /* GAS Comeback Response */ 3892 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3893 return -1; 3894#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3895#ifdef CONFIG_P2P 3896 /* P2P Public Action */ 3897 if (nl80211_register_action_frame(bss, 3898 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3899 6) < 0) 3900 return -1; 3901 /* P2P Action */ 3902 if (nl80211_register_action_frame(bss, 3903 (u8 *) "\x7f\x50\x6f\x9a\x09", 3904 5) < 0) 3905 return -1; 3906#endif /* CONFIG_P2P */ 3907#ifdef CONFIG_IEEE80211W 3908 /* SA Query Response */ 3909 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3910 return -1; 3911#endif /* CONFIG_IEEE80211W */ 3912#ifdef CONFIG_TDLS 3913 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3914 /* TDLS Discovery Response */ 3915 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3916 0) 3917 return -1; 3918 } 3919#endif /* CONFIG_TDLS */ 3920 3921 /* FT Action frames */ 3922 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3923 return -1; 3924 else 3925 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3926 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3927 3928 /* WNM - BSS Transition Management Request */ 3929 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3930 return -1; 3931 /* WNM-Sleep Mode Response */ 3932 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3933 return -1; 3934 3935 nl80211_mgmt_handle_register_eloop(bss); 3936 3937 return 0; 3938} 3939 3940 3941static int nl80211_register_spurious_class3(struct i802_bss *bss) 3942{ 3943 struct wpa_driver_nl80211_data *drv = bss->drv; 3944 struct nl_msg *msg; 3945 int ret = -1; 3946 3947 msg = nlmsg_alloc(); 3948 if (!msg) 3949 return -1; 3950 3951 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3952 3953 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3954 3955 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3956 msg = NULL; 3957 if (ret) { 3958 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3959 "failed: ret=%d (%s)", 3960 ret, strerror(-ret)); 3961 goto nla_put_failure; 3962 } 3963 ret = 0; 3964nla_put_failure: 3965 nlmsg_free(msg); 3966 return ret; 3967} 3968 3969 3970static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3971{ 3972 static const int stypes[] = { 3973 WLAN_FC_STYPE_AUTH, 3974 WLAN_FC_STYPE_ASSOC_REQ, 3975 WLAN_FC_STYPE_REASSOC_REQ, 3976 WLAN_FC_STYPE_DISASSOC, 3977 WLAN_FC_STYPE_DEAUTH, 3978 WLAN_FC_STYPE_ACTION, 3979 WLAN_FC_STYPE_PROBE_REQ, 3980/* Beacon doesn't work as mac80211 doesn't currently allow 3981 * it, but it wouldn't really be the right thing anyway as 3982 * it isn't per interface ... maybe just dump the scan 3983 * results periodically for OLBC? 3984 */ 3985// WLAN_FC_STYPE_BEACON, 3986 }; 3987 unsigned int i; 3988 3989 if (nl80211_alloc_mgmt_handle(bss)) 3990 return -1; 3991 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3992 "handle %p", bss->nl_mgmt); 3993 3994 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 3995 if (nl80211_register_frame(bss, bss->nl_mgmt, 3996 (WLAN_FC_TYPE_MGMT << 2) | 3997 (stypes[i] << 4), 3998 NULL, 0) < 0) { 3999 goto out_err; 4000 } 4001 } 4002 4003 if (nl80211_register_spurious_class3(bss)) 4004 goto out_err; 4005 4006 if (nl80211_get_wiphy_data_ap(bss) == NULL) 4007 goto out_err; 4008 4009 nl80211_mgmt_handle_register_eloop(bss); 4010 return 0; 4011 4012out_err: 4013 nl_destroy_handles(&bss->nl_mgmt); 4014 return -1; 4015} 4016 4017 4018static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 4019{ 4020 if (nl80211_alloc_mgmt_handle(bss)) 4021 return -1; 4022 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 4023 "handle %p (device SME)", bss->nl_mgmt); 4024 4025 if (nl80211_register_frame(bss, bss->nl_mgmt, 4026 (WLAN_FC_TYPE_MGMT << 2) | 4027 (WLAN_FC_STYPE_ACTION << 4), 4028 NULL, 0) < 0) 4029 goto out_err; 4030 4031 nl80211_mgmt_handle_register_eloop(bss); 4032 return 0; 4033 4034out_err: 4035 nl_destroy_handles(&bss->nl_mgmt); 4036 return -1; 4037} 4038 4039 4040static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 4041{ 4042 if (bss->nl_mgmt == NULL) 4043 return; 4044 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 4045 "(%s)", bss->nl_mgmt, reason); 4046 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 4047 4048 nl80211_put_wiphy_data_ap(bss); 4049} 4050 4051 4052static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 4053{ 4054 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 4055} 4056 4057 4058static void nl80211_del_p2pdev(struct i802_bss *bss) 4059{ 4060 struct wpa_driver_nl80211_data *drv = bss->drv; 4061 struct nl_msg *msg; 4062 int ret; 4063 4064 msg = nlmsg_alloc(); 4065 if (!msg) 4066 return; 4067 4068 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 4069 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4070 4071 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4072 msg = NULL; 4073 4074 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 4075 bss->ifname, (long long unsigned int) bss->wdev_id, 4076 strerror(-ret)); 4077 4078nla_put_failure: 4079 nlmsg_free(msg); 4080} 4081 4082 4083static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 4084{ 4085 struct wpa_driver_nl80211_data *drv = bss->drv; 4086 struct nl_msg *msg; 4087 int ret = -1; 4088 4089 msg = nlmsg_alloc(); 4090 if (!msg) 4091 return -1; 4092 4093 if (start) 4094 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 4095 else 4096 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 4097 4098 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 4099 4100 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4101 msg = NULL; 4102 4103 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4104 start ? "Start" : "Stop", 4105 bss->ifname, (long long unsigned int) bss->wdev_id, 4106 strerror(-ret)); 4107 4108nla_put_failure: 4109 nlmsg_free(msg); 4110 return ret; 4111} 4112 4113 4114static int i802_set_iface_flags(struct i802_bss *bss, int up) 4115{ 4116 enum nl80211_iftype nlmode; 4117 4118 nlmode = nl80211_get_ifmode(bss); 4119 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4120 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4121 bss->ifname, up); 4122 } 4123 4124 /* P2P Device has start/stop which is equivalent */ 4125 return nl80211_set_p2pdev(bss, up); 4126} 4127 4128 4129static int 4130wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4131{ 4132#ifndef HOSTAPD 4133 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4134#endif /* HOSTAPD */ 4135 struct i802_bss *bss = &drv->first_bss; 4136 int send_rfkill_event = 0; 4137 4138 drv->ifindex = if_nametoindex(bss->ifname); 4139 bss->ifindex = drv->ifindex; 4140 bss->wdev_id = drv->global->if_add_wdevid; 4141 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4142 4143 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 4144 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 4145 drv->global->if_add_wdevid_set = 0; 4146 4147 if (wpa_driver_nl80211_capa(drv)) 4148 return -1; 4149 4150 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4151 bss->ifname, drv->phyname); 4152 4153#ifndef HOSTAPD 4154 if (bss->if_dynamic) 4155 nlmode = nl80211_get_ifmode(bss); 4156 4157 /* 4158 * Make sure the interface starts up in station mode unless this is a 4159 * dynamically added interface (e.g., P2P) that was already configured 4160 * with proper iftype. 4161 */ 4162 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4163 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4164 return -1; 4165 } 4166 drv->nlmode = nlmode; 4167 4168 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4169 int ret = nl80211_set_p2pdev(bss, 1); 4170 if (ret < 0) 4171 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4172 nl80211_get_macaddr(bss); 4173 return ret; 4174 } 4175 4176 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4177 if (rfkill_is_blocked(drv->rfkill)) { 4178 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4179 "interface '%s' due to rfkill", 4180 bss->ifname); 4181 drv->if_disabled = 1; 4182 send_rfkill_event = 1; 4183 } else { 4184 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4185 "interface '%s' UP", bss->ifname); 4186 return -1; 4187 } 4188 } 4189 4190 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4191 1, IF_OPER_DORMANT); 4192#endif /* HOSTAPD */ 4193 4194 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4195 bss->addr)) 4196 return -1; 4197 4198 if (send_rfkill_event) { 4199 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4200 drv, drv->ctx); 4201 } 4202 4203 return 0; 4204} 4205 4206 4207static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4208{ 4209 struct nl_msg *msg; 4210 4211 msg = nlmsg_alloc(); 4212 if (!msg) 4213 return -ENOMEM; 4214 4215 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4216 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4217 4218 return send_and_recv_msgs(drv, msg, NULL, NULL); 4219 nla_put_failure: 4220 nlmsg_free(msg); 4221 return -ENOBUFS; 4222} 4223 4224 4225/** 4226 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4227 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4228 * 4229 * Shut down driver interface and processing of driver events. Free 4230 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4231 */ 4232static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4233{ 4234 struct wpa_driver_nl80211_data *drv = bss->drv; 4235 4236 bss->in_deinit = 1; 4237 if (drv->data_tx_status) 4238 eloop_unregister_read_sock(drv->eapol_tx_sock); 4239 if (drv->eapol_tx_sock >= 0) 4240 close(drv->eapol_tx_sock); 4241 4242 if (bss->nl_preq) 4243 wpa_driver_nl80211_probe_req_report(bss, 0); 4244 if (bss->added_if_into_bridge) { 4245 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4246 bss->ifname) < 0) 4247 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4248 "interface %s from bridge %s: %s", 4249 bss->ifname, bss->brname, strerror(errno)); 4250 } 4251 if (bss->added_bridge) { 4252 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4253 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4254 "bridge %s: %s", 4255 bss->brname, strerror(errno)); 4256 } 4257 4258 nl80211_remove_monitor_interface(drv); 4259 4260 if (is_ap_interface(drv->nlmode)) 4261 wpa_driver_nl80211_del_beacon(drv); 4262 4263#ifdef HOSTAPD 4264 if (drv->last_freq_ht) { 4265 /* Clear HT flags from the driver */ 4266 struct hostapd_freq_params freq; 4267 os_memset(&freq, 0, sizeof(freq)); 4268 freq.freq = drv->last_freq; 4269 wpa_driver_nl80211_set_freq(bss, &freq); 4270 } 4271 4272 if (drv->eapol_sock >= 0) { 4273 eloop_unregister_read_sock(drv->eapol_sock); 4274 close(drv->eapol_sock); 4275 } 4276 4277 if (drv->if_indices != drv->default_if_indices) 4278 os_free(drv->if_indices); 4279#endif /* HOSTAPD */ 4280 4281 if (drv->disabled_11b_rates) 4282 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4283 4284 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4285 IF_OPER_UP); 4286 rfkill_deinit(drv->rfkill); 4287 4288 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4289 4290 (void) i802_set_iface_flags(bss, 0); 4291 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4292 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4293 nl80211_mgmt_unsubscribe(bss, "deinit"); 4294 } else { 4295 nl80211_mgmt_unsubscribe(bss, "deinit"); 4296 nl80211_del_p2pdev(bss); 4297 } 4298 nl_cb_put(drv->nl_cb); 4299 4300 nl80211_destroy_bss(&drv->first_bss); 4301 4302 os_free(drv->filter_ssids); 4303 4304 os_free(drv->auth_ie); 4305 4306 if (drv->in_interface_list) 4307 dl_list_del(&drv->list); 4308 4309 os_free(drv->extended_capa); 4310 os_free(drv->extended_capa_mask); 4311 os_free(drv); 4312} 4313 4314 4315/** 4316 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4317 * @eloop_ctx: Driver private data 4318 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4319 * 4320 * This function can be used as registered timeout when starting a scan to 4321 * generate a scan completed event if the driver does not report this. 4322 */ 4323static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4324{ 4325 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4326 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4327 wpa_driver_nl80211_set_mode(&drv->first_bss, 4328 drv->ap_scan_as_station); 4329 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4330 } 4331 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4332 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4333} 4334 4335 4336static struct nl_msg * 4337nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4338 struct wpa_driver_scan_params *params, u64 *wdev_id) 4339{ 4340 struct nl_msg *msg; 4341 size_t i; 4342 4343 msg = nlmsg_alloc(); 4344 if (!msg) 4345 return NULL; 4346 4347 nl80211_cmd(drv, msg, 0, cmd); 4348 4349 if (!wdev_id) 4350 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4351 else 4352 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4353 4354 if (params->num_ssids) { 4355 struct nlattr *ssids; 4356 4357 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4358 if (ssids == NULL) 4359 goto fail; 4360 for (i = 0; i < params->num_ssids; i++) { 4361 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4362 params->ssids[i].ssid, 4363 params->ssids[i].ssid_len); 4364 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4365 params->ssids[i].ssid) < 0) 4366 goto fail; 4367 } 4368 nla_nest_end(msg, ssids); 4369 } 4370 4371 if (params->extra_ies) { 4372 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4373 params->extra_ies, params->extra_ies_len); 4374 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4375 params->extra_ies) < 0) 4376 goto fail; 4377 } 4378 4379 if (params->freqs) { 4380 struct nlattr *freqs; 4381 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4382 if (freqs == NULL) 4383 goto fail; 4384 for (i = 0; params->freqs[i]; i++) { 4385 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4386 "MHz", params->freqs[i]); 4387 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4388 goto fail; 4389 } 4390 nla_nest_end(msg, freqs); 4391 } 4392 4393 os_free(drv->filter_ssids); 4394 drv->filter_ssids = params->filter_ssids; 4395 params->filter_ssids = NULL; 4396 drv->num_filter_ssids = params->num_filter_ssids; 4397 4398 return msg; 4399 4400fail: 4401nla_put_failure: 4402 nlmsg_free(msg); 4403 return NULL; 4404} 4405 4406 4407/** 4408 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4409 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4410 * @params: Scan parameters 4411 * Returns: 0 on success, -1 on failure 4412 */ 4413static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4414 struct wpa_driver_scan_params *params) 4415{ 4416 struct wpa_driver_nl80211_data *drv = bss->drv; 4417 int ret = -1, timeout; 4418 struct nl_msg *msg = NULL; 4419 4420 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4421 drv->scan_for_auth = 0; 4422 4423 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4424 bss->wdev_id_set ? &bss->wdev_id : NULL); 4425 if (!msg) 4426 return -1; 4427 4428 if (params->p2p_probe) { 4429 struct nlattr *rates; 4430 4431 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4432 4433 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4434 if (rates == NULL) 4435 goto nla_put_failure; 4436 4437 /* 4438 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4439 * by masking out everything else apart from the OFDM rates 6, 4440 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4441 * rates are left enabled. 4442 */ 4443 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4444 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4445 nla_nest_end(msg, rates); 4446 4447 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4448 } 4449 4450 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4451 msg = NULL; 4452 if (ret) { 4453 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4454 "(%s)", ret, strerror(-ret)); 4455#ifdef HOSTAPD 4456 if (is_ap_interface(drv->nlmode)) { 4457 /* 4458 * mac80211 does not allow scan requests in AP mode, so 4459 * try to do this in station mode. 4460 */ 4461 if (wpa_driver_nl80211_set_mode( 4462 bss, NL80211_IFTYPE_STATION)) 4463 goto nla_put_failure; 4464 4465 if (wpa_driver_nl80211_scan(bss, params)) { 4466 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4467 goto nla_put_failure; 4468 } 4469 4470 /* Restore AP mode when processing scan results */ 4471 drv->ap_scan_as_station = drv->nlmode; 4472 ret = 0; 4473 } else 4474 goto nla_put_failure; 4475#else /* HOSTAPD */ 4476 goto nla_put_failure; 4477#endif /* HOSTAPD */ 4478 } 4479 4480 drv->scan_state = SCAN_REQUESTED; 4481 /* Not all drivers generate "scan completed" wireless event, so try to 4482 * read results after a timeout. */ 4483 timeout = 10; 4484 if (drv->scan_complete_events) { 4485 /* 4486 * The driver seems to deliver events to notify when scan is 4487 * complete, so use longer timeout to avoid race conditions 4488 * with scanning and following association request. 4489 */ 4490 timeout = 30; 4491 } 4492 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4493 "seconds", ret, timeout); 4494 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4495 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4496 drv, drv->ctx); 4497 4498nla_put_failure: 4499 nlmsg_free(msg); 4500 return ret; 4501} 4502 4503 4504/** 4505 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4506 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4507 * @params: Scan parameters 4508 * @interval: Interval between scan cycles in milliseconds 4509 * Returns: 0 on success, -1 on failure or if not supported 4510 */ 4511static int wpa_driver_nl80211_sched_scan(void *priv, 4512 struct wpa_driver_scan_params *params, 4513 u32 interval) 4514{ 4515 struct i802_bss *bss = priv; 4516 struct wpa_driver_nl80211_data *drv = bss->drv; 4517 int ret = -1; 4518 struct nl_msg *msg; 4519 size_t i; 4520 4521 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4522 4523#ifdef ANDROID 4524 if (!drv->capa.sched_scan_supported) 4525 return android_pno_start(bss, params); 4526#endif /* ANDROID */ 4527 4528 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4529 bss->wdev_id_set ? &bss->wdev_id : NULL); 4530 if (!msg) 4531 goto nla_put_failure; 4532 4533 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4534 4535 if ((drv->num_filter_ssids && 4536 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4537 params->filter_rssi) { 4538 struct nlattr *match_sets; 4539 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4540 if (match_sets == NULL) 4541 goto nla_put_failure; 4542 4543 for (i = 0; i < drv->num_filter_ssids; i++) { 4544 struct nlattr *match_set_ssid; 4545 wpa_hexdump_ascii(MSG_MSGDUMP, 4546 "nl80211: Sched scan filter SSID", 4547 drv->filter_ssids[i].ssid, 4548 drv->filter_ssids[i].ssid_len); 4549 4550 match_set_ssid = nla_nest_start(msg, i + 1); 4551 if (match_set_ssid == NULL) 4552 goto nla_put_failure; 4553 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4554 drv->filter_ssids[i].ssid_len, 4555 drv->filter_ssids[i].ssid); 4556 4557 nla_nest_end(msg, match_set_ssid); 4558 } 4559 4560 if (params->filter_rssi) { 4561 struct nlattr *match_set_rssi; 4562 match_set_rssi = nla_nest_start(msg, 0); 4563 if (match_set_rssi == NULL) 4564 goto nla_put_failure; 4565 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4566 params->filter_rssi); 4567 wpa_printf(MSG_MSGDUMP, 4568 "nl80211: Sched scan RSSI filter %d dBm", 4569 params->filter_rssi); 4570 nla_nest_end(msg, match_set_rssi); 4571 } 4572 4573 nla_nest_end(msg, match_sets); 4574 } 4575 4576 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4577 4578 /* TODO: if we get an error here, we should fall back to normal scan */ 4579 4580 msg = NULL; 4581 if (ret) { 4582 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4583 "ret=%d (%s)", ret, strerror(-ret)); 4584 goto nla_put_failure; 4585 } 4586 4587 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4588 "scan interval %d msec", ret, interval); 4589 4590nla_put_failure: 4591 nlmsg_free(msg); 4592 return ret; 4593} 4594 4595 4596/** 4597 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4598 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4599 * Returns: 0 on success, -1 on failure or if not supported 4600 */ 4601static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4602{ 4603 struct i802_bss *bss = priv; 4604 struct wpa_driver_nl80211_data *drv = bss->drv; 4605 int ret = 0; 4606 struct nl_msg *msg; 4607 4608#ifdef ANDROID 4609 if (!drv->capa.sched_scan_supported) 4610 return android_pno_stop(bss); 4611#endif /* ANDROID */ 4612 4613 msg = nlmsg_alloc(); 4614 if (!msg) 4615 return -1; 4616 4617 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4618 4619 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4620 4621 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4622 msg = NULL; 4623 if (ret) { 4624 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4625 "ret=%d (%s)", ret, strerror(-ret)); 4626 goto nla_put_failure; 4627 } 4628 4629 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4630 4631nla_put_failure: 4632 nlmsg_free(msg); 4633 return ret; 4634} 4635 4636 4637static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4638{ 4639 const u8 *end, *pos; 4640 4641 if (ies == NULL) 4642 return NULL; 4643 4644 pos = ies; 4645 end = ies + ies_len; 4646 4647 while (pos + 1 < end) { 4648 if (pos + 2 + pos[1] > end) 4649 break; 4650 if (pos[0] == ie) 4651 return pos; 4652 pos += 2 + pos[1]; 4653 } 4654 4655 return NULL; 4656} 4657 4658 4659static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4660 const u8 *ie, size_t ie_len) 4661{ 4662 const u8 *ssid; 4663 size_t i; 4664 4665 if (drv->filter_ssids == NULL) 4666 return 0; 4667 4668 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4669 if (ssid == NULL) 4670 return 1; 4671 4672 for (i = 0; i < drv->num_filter_ssids; i++) { 4673 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4674 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4675 0) 4676 return 0; 4677 } 4678 4679 return 1; 4680} 4681 4682 4683static int bss_info_handler(struct nl_msg *msg, void *arg) 4684{ 4685 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4686 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4687 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4688 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4689 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4690 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4691 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4692 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4693 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4694 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4695 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4696 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4697 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4698 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4699 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4700 }; 4701 struct nl80211_bss_info_arg *_arg = arg; 4702 struct wpa_scan_results *res = _arg->res; 4703 struct wpa_scan_res **tmp; 4704 struct wpa_scan_res *r; 4705 const u8 *ie, *beacon_ie; 4706 size_t ie_len, beacon_ie_len; 4707 u8 *pos; 4708 size_t i; 4709 4710 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4711 genlmsg_attrlen(gnlh, 0), NULL); 4712 if (!tb[NL80211_ATTR_BSS]) 4713 return NL_SKIP; 4714 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4715 bss_policy)) 4716 return NL_SKIP; 4717 if (bss[NL80211_BSS_STATUS]) { 4718 enum nl80211_bss_status status; 4719 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4720 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4721 bss[NL80211_BSS_FREQUENCY]) { 4722 _arg->assoc_freq = 4723 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4724 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4725 _arg->assoc_freq); 4726 } 4727 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4728 bss[NL80211_BSS_BSSID]) { 4729 os_memcpy(_arg->assoc_bssid, 4730 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4731 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4732 MACSTR, MAC2STR(_arg->assoc_bssid)); 4733 } 4734 } 4735 if (!res) 4736 return NL_SKIP; 4737 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4738 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4739 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4740 } else { 4741 ie = NULL; 4742 ie_len = 0; 4743 } 4744 if (bss[NL80211_BSS_BEACON_IES]) { 4745 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4746 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4747 } else { 4748 beacon_ie = NULL; 4749 beacon_ie_len = 0; 4750 } 4751 4752 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4753 ie ? ie_len : beacon_ie_len)) 4754 return NL_SKIP; 4755 4756 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4757 if (r == NULL) 4758 return NL_SKIP; 4759 if (bss[NL80211_BSS_BSSID]) 4760 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4761 ETH_ALEN); 4762 if (bss[NL80211_BSS_FREQUENCY]) 4763 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4764 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4765 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4766 if (bss[NL80211_BSS_CAPABILITY]) 4767 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4768 r->flags |= WPA_SCAN_NOISE_INVALID; 4769 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4770 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4771 r->level /= 100; /* mBm to dBm */ 4772 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4773 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4774 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4775 r->flags |= WPA_SCAN_QUAL_INVALID; 4776 } else 4777 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4778 if (bss[NL80211_BSS_TSF]) 4779 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4780 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4781 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4782 r->ie_len = ie_len; 4783 pos = (u8 *) (r + 1); 4784 if (ie) { 4785 os_memcpy(pos, ie, ie_len); 4786 pos += ie_len; 4787 } 4788 r->beacon_ie_len = beacon_ie_len; 4789 if (beacon_ie) 4790 os_memcpy(pos, beacon_ie, beacon_ie_len); 4791 4792 if (bss[NL80211_BSS_STATUS]) { 4793 enum nl80211_bss_status status; 4794 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4795 switch (status) { 4796 case NL80211_BSS_STATUS_AUTHENTICATED: 4797 r->flags |= WPA_SCAN_AUTHENTICATED; 4798 break; 4799 case NL80211_BSS_STATUS_ASSOCIATED: 4800 r->flags |= WPA_SCAN_ASSOCIATED; 4801 break; 4802 default: 4803 break; 4804 } 4805 } 4806 4807 /* 4808 * cfg80211 maintains separate BSS table entries for APs if the same 4809 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4810 * not use frequency as a separate key in the BSS table, so filter out 4811 * duplicated entries. Prefer associated BSS entry in such a case in 4812 * order to get the correct frequency into the BSS table. 4813 */ 4814 for (i = 0; i < res->num; i++) { 4815 const u8 *s1, *s2; 4816 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4817 continue; 4818 4819 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4820 res->res[i]->ie_len, WLAN_EID_SSID); 4821 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4822 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4823 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4824 continue; 4825 4826 /* Same BSSID,SSID was already included in scan results */ 4827 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4828 "for " MACSTR, MAC2STR(r->bssid)); 4829 4830 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4831 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4832 os_free(res->res[i]); 4833 res->res[i] = r; 4834 } else 4835 os_free(r); 4836 return NL_SKIP; 4837 } 4838 4839 tmp = os_realloc_array(res->res, res->num + 1, 4840 sizeof(struct wpa_scan_res *)); 4841 if (tmp == NULL) { 4842 os_free(r); 4843 return NL_SKIP; 4844 } 4845 tmp[res->num++] = r; 4846 res->res = tmp; 4847 4848 return NL_SKIP; 4849} 4850 4851 4852static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4853 const u8 *addr) 4854{ 4855 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4856 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4857 "mismatch (" MACSTR ")", MAC2STR(addr)); 4858 wpa_driver_nl80211_mlme(drv, addr, 4859 NL80211_CMD_DEAUTHENTICATE, 4860 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4861 } 4862} 4863 4864 4865static void wpa_driver_nl80211_check_bss_status( 4866 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4867{ 4868 size_t i; 4869 4870 for (i = 0; i < res->num; i++) { 4871 struct wpa_scan_res *r = res->res[i]; 4872 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4873 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4874 "indicates BSS status with " MACSTR 4875 " as authenticated", 4876 MAC2STR(r->bssid)); 4877 if (is_sta_interface(drv->nlmode) && 4878 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4879 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4880 0) { 4881 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4882 " in local state (auth=" MACSTR 4883 " assoc=" MACSTR ")", 4884 MAC2STR(drv->auth_bssid), 4885 MAC2STR(drv->bssid)); 4886 clear_state_mismatch(drv, r->bssid); 4887 } 4888 } 4889 4890 if (r->flags & WPA_SCAN_ASSOCIATED) { 4891 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4892 "indicate BSS status with " MACSTR 4893 " as associated", 4894 MAC2STR(r->bssid)); 4895 if (is_sta_interface(drv->nlmode) && 4896 !drv->associated) { 4897 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4898 "(not associated) does not match " 4899 "with BSS state"); 4900 clear_state_mismatch(drv, r->bssid); 4901 } else if (is_sta_interface(drv->nlmode) && 4902 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4903 0) { 4904 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4905 "(associated with " MACSTR ") does " 4906 "not match with BSS state", 4907 MAC2STR(drv->bssid)); 4908 clear_state_mismatch(drv, r->bssid); 4909 clear_state_mismatch(drv, drv->bssid); 4910 } 4911 } 4912 } 4913} 4914 4915 4916static struct wpa_scan_results * 4917nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4918{ 4919 struct nl_msg *msg; 4920 struct wpa_scan_results *res; 4921 int ret; 4922 struct nl80211_bss_info_arg arg; 4923 4924 res = os_zalloc(sizeof(*res)); 4925 if (res == NULL) 4926 return NULL; 4927 msg = nlmsg_alloc(); 4928 if (!msg) 4929 goto nla_put_failure; 4930 4931 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4932 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4933 goto nla_put_failure; 4934 4935 arg.drv = drv; 4936 arg.res = res; 4937 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4938 msg = NULL; 4939 if (ret == 0) { 4940 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4941 "BSSes)", (unsigned long) res->num); 4942 nl80211_get_noise_for_scan_results(drv, res); 4943 return res; 4944 } 4945 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4946 "(%s)", ret, strerror(-ret)); 4947nla_put_failure: 4948 nlmsg_free(msg); 4949 wpa_scan_results_free(res); 4950 return NULL; 4951} 4952 4953 4954/** 4955 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4956 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4957 * Returns: Scan results on success, -1 on failure 4958 */ 4959static struct wpa_scan_results * 4960wpa_driver_nl80211_get_scan_results(void *priv) 4961{ 4962 struct i802_bss *bss = priv; 4963 struct wpa_driver_nl80211_data *drv = bss->drv; 4964 struct wpa_scan_results *res; 4965 4966 res = nl80211_get_scan_results(drv); 4967 if (res) 4968 wpa_driver_nl80211_check_bss_status(drv, res); 4969 return res; 4970} 4971 4972 4973static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4974{ 4975 struct wpa_scan_results *res; 4976 size_t i; 4977 4978 res = nl80211_get_scan_results(drv); 4979 if (res == NULL) { 4980 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4981 return; 4982 } 4983 4984 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4985 for (i = 0; i < res->num; i++) { 4986 struct wpa_scan_res *r = res->res[i]; 4987 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4988 (int) i, (int) res->num, MAC2STR(r->bssid), 4989 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4990 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4991 } 4992 4993 wpa_scan_results_free(res); 4994} 4995 4996 4997static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4998 enum wpa_alg alg, const u8 *addr, 4999 int key_idx, int set_tx, 5000 const u8 *seq, size_t seq_len, 5001 const u8 *key, size_t key_len) 5002{ 5003 struct wpa_driver_nl80211_data *drv = bss->drv; 5004 int ifindex; 5005 struct nl_msg *msg; 5006 int ret; 5007 int tdls = 0; 5008 5009 /* Ignore for P2P Device */ 5010 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 5011 return 0; 5012 5013 ifindex = if_nametoindex(ifname); 5014 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 5015 "set_tx=%d seq_len=%lu key_len=%lu", 5016 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 5017 (unsigned long) seq_len, (unsigned long) key_len); 5018#ifdef CONFIG_TDLS 5019 if (key_idx == -1) { 5020 key_idx = 0; 5021 tdls = 1; 5022 } 5023#endif /* CONFIG_TDLS */ 5024 5025 msg = nlmsg_alloc(); 5026 if (!msg) 5027 return -ENOMEM; 5028 5029 if (alg == WPA_ALG_NONE) { 5030 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 5031 } else { 5032 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 5033 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 5034 switch (alg) { 5035 case WPA_ALG_WEP: 5036 if (key_len == 5) 5037 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5038 WLAN_CIPHER_SUITE_WEP40); 5039 else 5040 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5041 WLAN_CIPHER_SUITE_WEP104); 5042 break; 5043 case WPA_ALG_TKIP: 5044 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5045 WLAN_CIPHER_SUITE_TKIP); 5046 break; 5047 case WPA_ALG_CCMP: 5048 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5049 WLAN_CIPHER_SUITE_CCMP); 5050 break; 5051 case WPA_ALG_GCMP: 5052 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5053 WLAN_CIPHER_SUITE_GCMP); 5054 break; 5055 case WPA_ALG_IGTK: 5056 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5057 WLAN_CIPHER_SUITE_AES_CMAC); 5058 break; 5059 case WPA_ALG_SMS4: 5060 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5061 WLAN_CIPHER_SUITE_SMS4); 5062 break; 5063 case WPA_ALG_KRK: 5064 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 5065 WLAN_CIPHER_SUITE_KRK); 5066 break; 5067 default: 5068 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5069 "algorithm %d", __func__, alg); 5070 nlmsg_free(msg); 5071 return -1; 5072 } 5073 } 5074 5075 if (seq && seq_len) 5076 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 5077 5078 if (addr && !is_broadcast_ether_addr(addr)) { 5079 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 5080 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5081 5082 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 5083 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 5084 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 5085 NL80211_KEYTYPE_GROUP); 5086 } 5087 } else if (addr && is_broadcast_ether_addr(addr)) { 5088 struct nlattr *types; 5089 5090 wpa_printf(MSG_DEBUG, " broadcast key"); 5091 5092 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5093 if (!types) 5094 goto nla_put_failure; 5095 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5096 nla_nest_end(msg, types); 5097 } 5098 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5099 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5100 5101 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5102 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5103 ret = 0; 5104 if (ret) 5105 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5106 ret, strerror(-ret)); 5107 5108 /* 5109 * If we failed or don't need to set the default TX key (below), 5110 * we're done here. 5111 */ 5112 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5113 return ret; 5114 if (is_ap_interface(drv->nlmode) && addr && 5115 !is_broadcast_ether_addr(addr)) 5116 return ret; 5117 5118 msg = nlmsg_alloc(); 5119 if (!msg) 5120 return -ENOMEM; 5121 5122 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5123 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5124 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5125 if (alg == WPA_ALG_IGTK) 5126 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5127 else 5128 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5129 if (addr && is_broadcast_ether_addr(addr)) { 5130 struct nlattr *types; 5131 5132 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5133 if (!types) 5134 goto nla_put_failure; 5135 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5136 nla_nest_end(msg, types); 5137 } else if (addr) { 5138 struct nlattr *types; 5139 5140 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5141 if (!types) 5142 goto nla_put_failure; 5143 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5144 nla_nest_end(msg, types); 5145 } 5146 5147 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5148 if (ret == -ENOENT) 5149 ret = 0; 5150 if (ret) 5151 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5152 "err=%d %s)", ret, strerror(-ret)); 5153 return ret; 5154 5155nla_put_failure: 5156 nlmsg_free(msg); 5157 return -ENOBUFS; 5158} 5159 5160 5161static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5162 int key_idx, int defkey, 5163 const u8 *seq, size_t seq_len, 5164 const u8 *key, size_t key_len) 5165{ 5166 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5167 if (!key_attr) 5168 return -1; 5169 5170 if (defkey && alg == WPA_ALG_IGTK) 5171 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5172 else if (defkey) 5173 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5174 5175 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5176 5177 switch (alg) { 5178 case WPA_ALG_WEP: 5179 if (key_len == 5) 5180 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5181 WLAN_CIPHER_SUITE_WEP40); 5182 else 5183 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5184 WLAN_CIPHER_SUITE_WEP104); 5185 break; 5186 case WPA_ALG_TKIP: 5187 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5188 break; 5189 case WPA_ALG_CCMP: 5190 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5191 break; 5192 case WPA_ALG_GCMP: 5193 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5194 break; 5195 case WPA_ALG_IGTK: 5196 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5197 WLAN_CIPHER_SUITE_AES_CMAC); 5198 break; 5199 default: 5200 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5201 "algorithm %d", __func__, alg); 5202 return -1; 5203 } 5204 5205 if (seq && seq_len) 5206 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5207 5208 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5209 5210 nla_nest_end(msg, key_attr); 5211 5212 return 0; 5213 nla_put_failure: 5214 return -1; 5215} 5216 5217 5218static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5219 struct nl_msg *msg) 5220{ 5221 int i, privacy = 0; 5222 struct nlattr *nl_keys, *nl_key; 5223 5224 for (i = 0; i < 4; i++) { 5225 if (!params->wep_key[i]) 5226 continue; 5227 privacy = 1; 5228 break; 5229 } 5230 if (params->wps == WPS_MODE_PRIVACY) 5231 privacy = 1; 5232 if (params->pairwise_suite && 5233 params->pairwise_suite != WPA_CIPHER_NONE) 5234 privacy = 1; 5235 5236 if (!privacy) 5237 return 0; 5238 5239 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5240 5241 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5242 if (!nl_keys) 5243 goto nla_put_failure; 5244 5245 for (i = 0; i < 4; i++) { 5246 if (!params->wep_key[i]) 5247 continue; 5248 5249 nl_key = nla_nest_start(msg, i); 5250 if (!nl_key) 5251 goto nla_put_failure; 5252 5253 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5254 params->wep_key[i]); 5255 if (params->wep_key_len[i] == 5) 5256 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5257 WLAN_CIPHER_SUITE_WEP40); 5258 else 5259 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5260 WLAN_CIPHER_SUITE_WEP104); 5261 5262 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5263 5264 if (i == params->wep_tx_keyidx) 5265 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5266 5267 nla_nest_end(msg, nl_key); 5268 } 5269 nla_nest_end(msg, nl_keys); 5270 5271 return 0; 5272 5273nla_put_failure: 5274 return -ENOBUFS; 5275} 5276 5277 5278static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5279 const u8 *addr, int cmd, u16 reason_code, 5280 int local_state_change) 5281{ 5282 int ret = -1; 5283 struct nl_msg *msg; 5284 5285 msg = nlmsg_alloc(); 5286 if (!msg) 5287 return -1; 5288 5289 nl80211_cmd(drv, msg, 0, cmd); 5290 5291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5292 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5293 if (addr) 5294 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5295 if (local_state_change) 5296 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5297 5298 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5299 msg = NULL; 5300 if (ret) { 5301 wpa_dbg(drv->ctx, MSG_DEBUG, 5302 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5303 reason_code, ret, strerror(-ret)); 5304 goto nla_put_failure; 5305 } 5306 ret = 0; 5307 5308nla_put_failure: 5309 nlmsg_free(msg); 5310 return ret; 5311} 5312 5313 5314static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5315 int reason_code) 5316{ 5317 int ret; 5318 5319 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5320 nl80211_mark_disconnected(drv); 5321 /* Disconnect command doesn't need BSSID - it uses cached value */ 5322 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5323 reason_code, 0); 5324 /* 5325 * For locally generated disconnect, supplicant already generates a 5326 * DEAUTH event, so ignore the event from NL80211. 5327 */ 5328 drv->ignore_next_local_disconnect = ret == 0; 5329 5330 return ret; 5331} 5332 5333 5334static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5335 const u8 *addr, int reason_code) 5336{ 5337 struct wpa_driver_nl80211_data *drv = bss->drv; 5338 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5339 return wpa_driver_nl80211_disconnect(drv, reason_code); 5340 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5341 __func__, MAC2STR(addr), reason_code); 5342 nl80211_mark_disconnected(drv); 5343 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5344 return nl80211_leave_ibss(drv); 5345 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5346 reason_code, 0); 5347} 5348 5349 5350static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5351 struct wpa_driver_auth_params *params) 5352{ 5353 int i; 5354 5355 drv->auth_freq = params->freq; 5356 drv->auth_alg = params->auth_alg; 5357 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5358 drv->auth_local_state_change = params->local_state_change; 5359 drv->auth_p2p = params->p2p; 5360 5361 if (params->bssid) 5362 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5363 else 5364 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5365 5366 if (params->ssid) { 5367 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5368 drv->auth_ssid_len = params->ssid_len; 5369 } else 5370 drv->auth_ssid_len = 0; 5371 5372 5373 os_free(drv->auth_ie); 5374 drv->auth_ie = NULL; 5375 drv->auth_ie_len = 0; 5376 if (params->ie) { 5377 drv->auth_ie = os_malloc(params->ie_len); 5378 if (drv->auth_ie) { 5379 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5380 drv->auth_ie_len = params->ie_len; 5381 } 5382 } 5383 5384 for (i = 0; i < 4; i++) { 5385 if (params->wep_key[i] && params->wep_key_len[i] && 5386 params->wep_key_len[i] <= 16) { 5387 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5388 params->wep_key_len[i]); 5389 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5390 } else 5391 drv->auth_wep_key_len[i] = 0; 5392 } 5393} 5394 5395 5396static int wpa_driver_nl80211_authenticate( 5397 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5398{ 5399 struct wpa_driver_nl80211_data *drv = bss->drv; 5400 int ret = -1, i; 5401 struct nl_msg *msg; 5402 enum nl80211_auth_type type; 5403 enum nl80211_iftype nlmode; 5404 int count = 0; 5405 int is_retry; 5406 5407 is_retry = drv->retry_auth; 5408 drv->retry_auth = 0; 5409 5410 nl80211_mark_disconnected(drv); 5411 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5412 if (params->bssid) 5413 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5414 else 5415 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5416 /* FIX: IBSS mode */ 5417 nlmode = params->p2p ? 5418 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5419 if (drv->nlmode != nlmode && 5420 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5421 return -1; 5422 5423retry: 5424 msg = nlmsg_alloc(); 5425 if (!msg) 5426 return -1; 5427 5428 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5429 drv->ifindex); 5430 5431 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5432 5433 for (i = 0; i < 4; i++) { 5434 if (!params->wep_key[i]) 5435 continue; 5436 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5437 NULL, i, 5438 i == params->wep_tx_keyidx, NULL, 0, 5439 params->wep_key[i], 5440 params->wep_key_len[i]); 5441 if (params->wep_tx_keyidx != i) 5442 continue; 5443 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5444 params->wep_key[i], params->wep_key_len[i])) { 5445 nlmsg_free(msg); 5446 return -1; 5447 } 5448 } 5449 5450 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5451 if (params->bssid) { 5452 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5453 MAC2STR(params->bssid)); 5454 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5455 } 5456 if (params->freq) { 5457 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5458 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5459 } 5460 if (params->ssid) { 5461 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5462 params->ssid, params->ssid_len); 5463 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5464 params->ssid); 5465 } 5466 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5467 if (params->ie) 5468 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5469 if (params->sae_data) { 5470 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5471 params->sae_data_len); 5472 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5473 params->sae_data); 5474 } 5475 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5476 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5477 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5478 type = NL80211_AUTHTYPE_SHARED_KEY; 5479 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5480 type = NL80211_AUTHTYPE_NETWORK_EAP; 5481 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5482 type = NL80211_AUTHTYPE_FT; 5483 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5484 type = NL80211_AUTHTYPE_SAE; 5485 else 5486 goto nla_put_failure; 5487 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5488 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5489 if (params->local_state_change) { 5490 wpa_printf(MSG_DEBUG, " * Local state change only"); 5491 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5492 } 5493 5494 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5495 msg = NULL; 5496 if (ret) { 5497 wpa_dbg(drv->ctx, MSG_DEBUG, 5498 "nl80211: MLME command failed (auth): ret=%d (%s)", 5499 ret, strerror(-ret)); 5500 count++; 5501 if (ret == -EALREADY && count == 1 && params->bssid && 5502 !params->local_state_change) { 5503 /* 5504 * mac80211 does not currently accept new 5505 * authentication if we are already authenticated. As a 5506 * workaround, force deauthentication and try again. 5507 */ 5508 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5509 "after forced deauthentication"); 5510 wpa_driver_nl80211_deauthenticate( 5511 bss, params->bssid, 5512 WLAN_REASON_PREV_AUTH_NOT_VALID); 5513 nlmsg_free(msg); 5514 goto retry; 5515 } 5516 5517 if (ret == -ENOENT && params->freq && !is_retry) { 5518 /* 5519 * cfg80211 has likely expired the BSS entry even 5520 * though it was previously available in our internal 5521 * BSS table. To recover quickly, start a single 5522 * channel scan on the specified channel. 5523 */ 5524 struct wpa_driver_scan_params scan; 5525 int freqs[2]; 5526 5527 os_memset(&scan, 0, sizeof(scan)); 5528 scan.num_ssids = 1; 5529 if (params->ssid) { 5530 scan.ssids[0].ssid = params->ssid; 5531 scan.ssids[0].ssid_len = params->ssid_len; 5532 } 5533 freqs[0] = params->freq; 5534 freqs[1] = 0; 5535 scan.freqs = freqs; 5536 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5537 "channel scan to refresh cfg80211 BSS " 5538 "entry"); 5539 ret = wpa_driver_nl80211_scan(bss, &scan); 5540 if (ret == 0) { 5541 nl80211_copy_auth_params(drv, params); 5542 drv->scan_for_auth = 1; 5543 } 5544 } else if (is_retry) { 5545 /* 5546 * Need to indicate this with an event since the return 5547 * value from the retry is not delivered to core code. 5548 */ 5549 union wpa_event_data event; 5550 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5551 "failed"); 5552 os_memset(&event, 0, sizeof(event)); 5553 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5554 ETH_ALEN); 5555 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5556 &event); 5557 } 5558 5559 goto nla_put_failure; 5560 } 5561 ret = 0; 5562 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5563 "successfully"); 5564 5565nla_put_failure: 5566 nlmsg_free(msg); 5567 return ret; 5568} 5569 5570 5571static int wpa_driver_nl80211_authenticate_retry( 5572 struct wpa_driver_nl80211_data *drv) 5573{ 5574 struct wpa_driver_auth_params params; 5575 struct i802_bss *bss = &drv->first_bss; 5576 int i; 5577 5578 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5579 5580 os_memset(¶ms, 0, sizeof(params)); 5581 params.freq = drv->auth_freq; 5582 params.auth_alg = drv->auth_alg; 5583 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5584 params.local_state_change = drv->auth_local_state_change; 5585 params.p2p = drv->auth_p2p; 5586 5587 if (!is_zero_ether_addr(drv->auth_bssid_)) 5588 params.bssid = drv->auth_bssid_; 5589 5590 if (drv->auth_ssid_len) { 5591 params.ssid = drv->auth_ssid; 5592 params.ssid_len = drv->auth_ssid_len; 5593 } 5594 5595 params.ie = drv->auth_ie; 5596 params.ie_len = drv->auth_ie_len; 5597 5598 for (i = 0; i < 4; i++) { 5599 if (drv->auth_wep_key_len[i]) { 5600 params.wep_key[i] = drv->auth_wep_key[i]; 5601 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5602 } 5603 } 5604 5605 drv->retry_auth = 1; 5606 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5607} 5608 5609 5610struct phy_info_arg { 5611 u16 *num_modes; 5612 struct hostapd_hw_modes *modes; 5613 int last_mode, last_chan_idx; 5614}; 5615 5616static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5617 struct nlattr *ampdu_factor, 5618 struct nlattr *ampdu_density, 5619 struct nlattr *mcs_set) 5620{ 5621 if (capa) 5622 mode->ht_capab = nla_get_u16(capa); 5623 5624 if (ampdu_factor) 5625 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5626 5627 if (ampdu_density) 5628 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5629 5630 if (mcs_set && nla_len(mcs_set) >= 16) { 5631 u8 *mcs; 5632 mcs = nla_data(mcs_set); 5633 os_memcpy(mode->mcs_set, mcs, 16); 5634 } 5635} 5636 5637 5638static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5639 struct nlattr *capa, 5640 struct nlattr *mcs_set) 5641{ 5642 if (capa) 5643 mode->vht_capab = nla_get_u32(capa); 5644 5645 if (mcs_set && nla_len(mcs_set) >= 8) { 5646 u8 *mcs; 5647 mcs = nla_data(mcs_set); 5648 os_memcpy(mode->vht_mcs_set, mcs, 8); 5649 } 5650} 5651 5652 5653static void phy_info_freq(struct hostapd_hw_modes *mode, 5654 struct hostapd_channel_data *chan, 5655 struct nlattr *tb_freq[]) 5656{ 5657 u8 channel; 5658 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5659 chan->flag = 0; 5660 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5661 chan->chan = channel; 5662 5663 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5664 chan->flag |= HOSTAPD_CHAN_DISABLED; 5665 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5666 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5667 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5668 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5669 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5670 chan->flag |= HOSTAPD_CHAN_RADAR; 5671 5672 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5673 enum nl80211_dfs_state state = 5674 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5675 5676 switch (state) { 5677 case NL80211_DFS_USABLE: 5678 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5679 break; 5680 case NL80211_DFS_AVAILABLE: 5681 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5682 break; 5683 case NL80211_DFS_UNAVAILABLE: 5684 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5685 break; 5686 } 5687 } 5688} 5689 5690 5691static int phy_info_freqs(struct phy_info_arg *phy_info, 5692 struct hostapd_hw_modes *mode, struct nlattr *tb) 5693{ 5694 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5695 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5696 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5697 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5698 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5699 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5700 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5701 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5702 }; 5703 int new_channels = 0; 5704 struct hostapd_channel_data *channel; 5705 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5706 struct nlattr *nl_freq; 5707 int rem_freq, idx; 5708 5709 if (tb == NULL) 5710 return NL_OK; 5711 5712 nla_for_each_nested(nl_freq, tb, rem_freq) { 5713 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5714 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5715 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5716 continue; 5717 new_channels++; 5718 } 5719 5720 channel = os_realloc_array(mode->channels, 5721 mode->num_channels + new_channels, 5722 sizeof(struct hostapd_channel_data)); 5723 if (!channel) 5724 return NL_SKIP; 5725 5726 mode->channels = channel; 5727 mode->num_channels += new_channels; 5728 5729 idx = phy_info->last_chan_idx; 5730 5731 nla_for_each_nested(nl_freq, tb, rem_freq) { 5732 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5733 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5734 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5735 continue; 5736 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5737 idx++; 5738 } 5739 phy_info->last_chan_idx = idx; 5740 5741 return NL_OK; 5742} 5743 5744 5745static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5746{ 5747 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5748 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5749 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5750 { .type = NLA_FLAG }, 5751 }; 5752 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5753 struct nlattr *nl_rate; 5754 int rem_rate, idx; 5755 5756 if (tb == NULL) 5757 return NL_OK; 5758 5759 nla_for_each_nested(nl_rate, tb, rem_rate) { 5760 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5761 nla_data(nl_rate), nla_len(nl_rate), 5762 rate_policy); 5763 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5764 continue; 5765 mode->num_rates++; 5766 } 5767 5768 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5769 if (!mode->rates) 5770 return NL_SKIP; 5771 5772 idx = 0; 5773 5774 nla_for_each_nested(nl_rate, tb, rem_rate) { 5775 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5776 nla_data(nl_rate), nla_len(nl_rate), 5777 rate_policy); 5778 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5779 continue; 5780 mode->rates[idx] = nla_get_u32( 5781 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5782 idx++; 5783 } 5784 5785 return NL_OK; 5786} 5787 5788 5789static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5790{ 5791 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5792 struct hostapd_hw_modes *mode; 5793 int ret; 5794 5795 if (phy_info->last_mode != nl_band->nla_type) { 5796 mode = os_realloc_array(phy_info->modes, 5797 *phy_info->num_modes + 1, 5798 sizeof(*mode)); 5799 if (!mode) 5800 return NL_SKIP; 5801 phy_info->modes = mode; 5802 5803 mode = &phy_info->modes[*(phy_info->num_modes)]; 5804 os_memset(mode, 0, sizeof(*mode)); 5805 mode->mode = NUM_HOSTAPD_MODES; 5806 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5807 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5808 5809 /* 5810 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5811 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5812 * possible streams as unsupported. This will be overridden if 5813 * driver advertises VHT support. 5814 */ 5815 mode->vht_mcs_set[0] = 0xff; 5816 mode->vht_mcs_set[1] = 0xff; 5817 mode->vht_mcs_set[4] = 0xff; 5818 mode->vht_mcs_set[5] = 0xff; 5819 5820 *(phy_info->num_modes) += 1; 5821 phy_info->last_mode = nl_band->nla_type; 5822 phy_info->last_chan_idx = 0; 5823 } else 5824 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5825 5826 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5827 nla_len(nl_band), NULL); 5828 5829 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5830 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5831 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5832 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5833 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5834 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5835 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5836 if (ret != NL_OK) 5837 return ret; 5838 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5839 if (ret != NL_OK) 5840 return ret; 5841 5842 return NL_OK; 5843} 5844 5845 5846static int phy_info_handler(struct nl_msg *msg, void *arg) 5847{ 5848 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5849 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5850 struct phy_info_arg *phy_info = arg; 5851 struct nlattr *nl_band; 5852 int rem_band; 5853 5854 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5855 genlmsg_attrlen(gnlh, 0), NULL); 5856 5857 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5858 return NL_SKIP; 5859 5860 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5861 { 5862 int res = phy_info_band(phy_info, nl_band); 5863 if (res != NL_OK) 5864 return res; 5865 } 5866 5867 return NL_SKIP; 5868} 5869 5870 5871static struct hostapd_hw_modes * 5872wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5873 u16 *num_modes) 5874{ 5875 u16 m; 5876 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5877 int i, mode11g_idx = -1; 5878 5879 /* heuristic to set up modes */ 5880 for (m = 0; m < *num_modes; m++) { 5881 if (!modes[m].num_channels) 5882 continue; 5883 if (modes[m].channels[0].freq < 4000) { 5884 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5885 for (i = 0; i < modes[m].num_rates; i++) { 5886 if (modes[m].rates[i] > 200) { 5887 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5888 break; 5889 } 5890 } 5891 } else if (modes[m].channels[0].freq > 50000) 5892 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5893 else 5894 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5895 } 5896 5897 /* If only 802.11g mode is included, use it to construct matching 5898 * 802.11b mode data. */ 5899 5900 for (m = 0; m < *num_modes; m++) { 5901 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5902 return modes; /* 802.11b already included */ 5903 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5904 mode11g_idx = m; 5905 } 5906 5907 if (mode11g_idx < 0) 5908 return modes; /* 2.4 GHz band not supported at all */ 5909 5910 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5911 if (nmodes == NULL) 5912 return modes; /* Could not add 802.11b mode */ 5913 5914 mode = &nmodes[*num_modes]; 5915 os_memset(mode, 0, sizeof(*mode)); 5916 (*num_modes)++; 5917 modes = nmodes; 5918 5919 mode->mode = HOSTAPD_MODE_IEEE80211B; 5920 5921 mode11g = &modes[mode11g_idx]; 5922 mode->num_channels = mode11g->num_channels; 5923 mode->channels = os_malloc(mode11g->num_channels * 5924 sizeof(struct hostapd_channel_data)); 5925 if (mode->channels == NULL) { 5926 (*num_modes)--; 5927 return modes; /* Could not add 802.11b mode */ 5928 } 5929 os_memcpy(mode->channels, mode11g->channels, 5930 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5931 5932 mode->num_rates = 0; 5933 mode->rates = os_malloc(4 * sizeof(int)); 5934 if (mode->rates == NULL) { 5935 os_free(mode->channels); 5936 (*num_modes)--; 5937 return modes; /* Could not add 802.11b mode */ 5938 } 5939 5940 for (i = 0; i < mode11g->num_rates; i++) { 5941 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5942 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5943 continue; 5944 mode->rates[mode->num_rates] = mode11g->rates[i]; 5945 mode->num_rates++; 5946 if (mode->num_rates == 4) 5947 break; 5948 } 5949 5950 if (mode->num_rates == 0) { 5951 os_free(mode->channels); 5952 os_free(mode->rates); 5953 (*num_modes)--; 5954 return modes; /* No 802.11b rates */ 5955 } 5956 5957 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5958 "information"); 5959 5960 return modes; 5961} 5962 5963 5964static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5965 int end) 5966{ 5967 int c; 5968 5969 for (c = 0; c < mode->num_channels; c++) { 5970 struct hostapd_channel_data *chan = &mode->channels[c]; 5971 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5972 chan->flag |= HOSTAPD_CHAN_HT40; 5973 } 5974} 5975 5976 5977static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5978 int end) 5979{ 5980 int c; 5981 5982 for (c = 0; c < mode->num_channels; c++) { 5983 struct hostapd_channel_data *chan = &mode->channels[c]; 5984 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5985 continue; 5986 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5987 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5988 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5989 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5990 } 5991} 5992 5993 5994static void nl80211_reg_rule_max_eirp(struct nlattr *tb[], 5995 struct phy_info_arg *results) 5996{ 5997 u32 start, end, max_eirp; 5998 u16 m; 5999 6000 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6001 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6002 tb[NL80211_ATTR_POWER_RULE_MAX_EIRP] == NULL) 6003 return; 6004 6005 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6006 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6007 max_eirp = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; 6008 6009 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u mBm", 6010 start, end, max_eirp); 6011 6012 for (m = 0; m < *results->num_modes; m++) { 6013 int c; 6014 struct hostapd_hw_modes *mode = &results->modes[m]; 6015 6016 for (c = 0; c < mode->num_channels; c++) { 6017 struct hostapd_channel_data *chan = &mode->channels[c]; 6018 if ((u32) chan->freq - 10 >= start && 6019 (u32) chan->freq + 10 <= end) 6020 chan->max_tx_power = max_eirp; 6021 } 6022 } 6023} 6024 6025 6026static void nl80211_reg_rule_ht40(struct nlattr *tb[], 6027 struct phy_info_arg *results) 6028{ 6029 u32 start, end, max_bw; 6030 u16 m; 6031 6032 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6033 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6034 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6035 return; 6036 6037 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6038 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6039 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6040 6041 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 6042 start, end, max_bw); 6043 if (max_bw < 40) 6044 return; 6045 6046 for (m = 0; m < *results->num_modes; m++) { 6047 if (!(results->modes[m].ht_capab & 6048 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6049 continue; 6050 nl80211_set_ht40_mode(&results->modes[m], start, end); 6051 } 6052} 6053 6054 6055static void nl80211_reg_rule_sec(struct nlattr *tb[], 6056 struct phy_info_arg *results) 6057{ 6058 u32 start, end, max_bw; 6059 u16 m; 6060 6061 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6062 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6063 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6064 return; 6065 6066 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6067 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6068 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6069 6070 if (max_bw < 20) 6071 return; 6072 6073 for (m = 0; m < *results->num_modes; m++) { 6074 if (!(results->modes[m].ht_capab & 6075 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6076 continue; 6077 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 6078 } 6079} 6080 6081 6082static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, 6083 int end) 6084{ 6085 int c; 6086 6087 for (c = 0; c < mode->num_channels; c++) { 6088 struct hostapd_channel_data *chan = &mode->channels[c]; 6089 if (chan->freq - 10 >= start && chan->freq + 70 <= end) 6090 chan->flag |= HOSTAPD_CHAN_VHT_10_70; 6091 6092 if (chan->freq - 30 >= start && chan->freq + 50 <= end) 6093 chan->flag |= HOSTAPD_CHAN_VHT_30_50; 6094 6095 if (chan->freq - 50 >= start && chan->freq + 30 <= end) 6096 chan->flag |= HOSTAPD_CHAN_VHT_50_30; 6097 6098 if (chan->freq - 70 >= start && chan->freq + 10 <= end) 6099 chan->flag |= HOSTAPD_CHAN_VHT_70_10; 6100 } 6101} 6102 6103 6104static void nl80211_reg_rule_vht(struct nlattr *tb[], 6105 struct phy_info_arg *results) 6106{ 6107 u32 start, end, max_bw; 6108 u16 m; 6109 6110 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 6111 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 6112 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 6113 return; 6114 6115 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 6116 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 6117 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 6118 6119 if (max_bw < 80) 6120 return; 6121 6122 for (m = 0; m < *results->num_modes; m++) { 6123 if (!(results->modes[m].ht_capab & 6124 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 6125 continue; 6126 /* TODO: use a real VHT support indication */ 6127 if (!results->modes[m].vht_capab) 6128 continue; 6129 6130 nl80211_set_vht_mode(&results->modes[m], start, end); 6131 } 6132} 6133 6134 6135static int nl80211_get_reg(struct nl_msg *msg, void *arg) 6136{ 6137 struct phy_info_arg *results = arg; 6138 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 6139 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6140 struct nlattr *nl_rule; 6141 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 6142 int rem_rule; 6143 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 6144 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 6145 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 6146 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 6147 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 6148 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 6149 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 6150 }; 6151 6152 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6153 genlmsg_attrlen(gnlh, 0), NULL); 6154 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 6155 !tb_msg[NL80211_ATTR_REG_RULES]) { 6156 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 6157 "available"); 6158 return NL_SKIP; 6159 } 6160 6161 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 6162 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 6163 6164 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6165 { 6166 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6167 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6168 nl80211_reg_rule_ht40(tb_rule, results); 6169 nl80211_reg_rule_max_eirp(tb_rule, results); 6170 } 6171 6172 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6173 { 6174 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6175 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6176 nl80211_reg_rule_sec(tb_rule, results); 6177 } 6178 6179 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 6180 { 6181 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 6182 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 6183 nl80211_reg_rule_vht(tb_rule, results); 6184 } 6185 6186 return NL_SKIP; 6187} 6188 6189 6190static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, 6191 struct phy_info_arg *results) 6192{ 6193 struct nl_msg *msg; 6194 6195 msg = nlmsg_alloc(); 6196 if (!msg) 6197 return -ENOMEM; 6198 6199 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6200 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6201} 6202 6203 6204static struct hostapd_hw_modes * 6205wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6206{ 6207 u32 feat; 6208 struct i802_bss *bss = priv; 6209 struct wpa_driver_nl80211_data *drv = bss->drv; 6210 struct nl_msg *msg; 6211 struct phy_info_arg result = { 6212 .num_modes = num_modes, 6213 .modes = NULL, 6214 .last_mode = -1, 6215 }; 6216 6217 *num_modes = 0; 6218 *flags = 0; 6219 6220 msg = nlmsg_alloc(); 6221 if (!msg) 6222 return NULL; 6223 6224 feat = get_nl80211_protocol_features(drv); 6225 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6226 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6227 else 6228 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6229 6230 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6232 6233 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6234 nl80211_set_regulatory_flags(drv, &result); 6235 return wpa_driver_nl80211_postprocess_modes(result.modes, 6236 num_modes); 6237 } 6238 msg = NULL; 6239 nla_put_failure: 6240 nlmsg_free(msg); 6241 return NULL; 6242} 6243 6244 6245static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6246 const void *data, size_t len, 6247 int encrypt, int noack) 6248{ 6249 __u8 rtap_hdr[] = { 6250 0x00, 0x00, /* radiotap version */ 6251 0x0e, 0x00, /* radiotap length */ 6252 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6253 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6254 0x00, /* padding */ 6255 0x00, 0x00, /* RX and TX flags to indicate that */ 6256 0x00, 0x00, /* this is the injected frame directly */ 6257 }; 6258 struct iovec iov[2] = { 6259 { 6260 .iov_base = &rtap_hdr, 6261 .iov_len = sizeof(rtap_hdr), 6262 }, 6263 { 6264 .iov_base = (void *) data, 6265 .iov_len = len, 6266 } 6267 }; 6268 struct msghdr msg = { 6269 .msg_name = NULL, 6270 .msg_namelen = 0, 6271 .msg_iov = iov, 6272 .msg_iovlen = 2, 6273 .msg_control = NULL, 6274 .msg_controllen = 0, 6275 .msg_flags = 0, 6276 }; 6277 int res; 6278 u16 txflags = 0; 6279 6280 if (encrypt) 6281 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6282 6283 if (drv->monitor_sock < 0) { 6284 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6285 "for %s", __func__); 6286 return -1; 6287 } 6288 6289 if (noack) 6290 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6291 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6292 6293 res = sendmsg(drv->monitor_sock, &msg, 0); 6294 if (res < 0) { 6295 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6296 return -1; 6297 } 6298 return 0; 6299} 6300 6301 6302static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6303 const void *data, size_t len, 6304 int encrypt, int noack, 6305 unsigned int freq, int no_cck, 6306 int offchanok, unsigned int wait_time) 6307{ 6308 struct wpa_driver_nl80211_data *drv = bss->drv; 6309 u64 cookie; 6310 int res; 6311 6312 if (freq == 0) { 6313 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 6314 bss->freq); 6315 freq = bss->freq; 6316 } 6317 6318 if (drv->use_monitor) { 6319 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", 6320 freq, bss->freq); 6321 return wpa_driver_nl80211_send_mntr(drv, data, len, 6322 encrypt, noack); 6323 } 6324 6325 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 6326 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6327 &cookie, no_cck, noack, offchanok); 6328 if (res == 0 && !noack) { 6329 const struct ieee80211_mgmt *mgmt; 6330 u16 fc; 6331 6332 mgmt = (const struct ieee80211_mgmt *) data; 6333 fc = le_to_host16(mgmt->frame_control); 6334 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6335 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 6336 wpa_printf(MSG_MSGDUMP, 6337 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 6338 (long long unsigned int) 6339 drv->send_action_cookie, 6340 (long long unsigned int) cookie); 6341 drv->send_action_cookie = cookie; 6342 } 6343 } 6344 6345 return res; 6346} 6347 6348 6349static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6350 size_t data_len, int noack, 6351 unsigned int freq, int no_cck, 6352 int offchanok, 6353 unsigned int wait_time) 6354{ 6355 struct wpa_driver_nl80211_data *drv = bss->drv; 6356 struct ieee80211_mgmt *mgmt; 6357 int encrypt = 1; 6358 u16 fc; 6359 6360 mgmt = (struct ieee80211_mgmt *) data; 6361 fc = le_to_host16(mgmt->frame_control); 6362 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", 6363 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); 6364 6365 if ((is_sta_interface(drv->nlmode) || 6366 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6367 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6368 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6369 /* 6370 * The use of last_mgmt_freq is a bit of a hack, 6371 * but it works due to the single-threaded nature 6372 * of wpa_supplicant. 6373 */ 6374 if (freq == 0) { 6375 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 6376 drv->last_mgmt_freq); 6377 freq = drv->last_mgmt_freq; 6378 } 6379 return nl80211_send_frame_cmd(bss, freq, 0, 6380 data, data_len, NULL, 1, noack, 6381 1); 6382 } 6383 6384 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6385 if (freq == 0) { 6386 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 6387 bss->freq); 6388 freq = bss->freq; 6389 } 6390 return nl80211_send_frame_cmd(bss, freq, 6391 (int) freq == bss->freq ? 0 : 6392 wait_time, 6393 data, data_len, 6394 &drv->send_action_cookie, 6395 no_cck, noack, offchanok); 6396 } 6397 6398 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6399 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6400 /* 6401 * Only one of the authentication frame types is encrypted. 6402 * In order for static WEP encryption to work properly (i.e., 6403 * to not encrypt the frame), we need to tell mac80211 about 6404 * the frames that must not be encrypted. 6405 */ 6406 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6407 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6408 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6409 encrypt = 0; 6410 } 6411 6412 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 6413 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6414 noack, freq, no_cck, offchanok, 6415 wait_time); 6416} 6417 6418 6419static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6420 int slot, int ht_opmode, int ap_isolate, 6421 int *basic_rates) 6422{ 6423 struct wpa_driver_nl80211_data *drv = bss->drv; 6424 struct nl_msg *msg; 6425 6426 msg = nlmsg_alloc(); 6427 if (!msg) 6428 return -ENOMEM; 6429 6430 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6431 6432 if (cts >= 0) 6433 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6434 if (preamble >= 0) 6435 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6436 if (slot >= 0) 6437 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6438 if (ht_opmode >= 0) 6439 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6440 if (ap_isolate >= 0) 6441 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6442 6443 if (basic_rates) { 6444 u8 rates[NL80211_MAX_SUPP_RATES]; 6445 u8 rates_len = 0; 6446 int i; 6447 6448 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6449 i++) 6450 rates[rates_len++] = basic_rates[i] / 5; 6451 6452 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6453 } 6454 6455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6456 6457 return send_and_recv_msgs(drv, msg, NULL, NULL); 6458 nla_put_failure: 6459 nlmsg_free(msg); 6460 return -ENOBUFS; 6461} 6462 6463 6464static int wpa_driver_nl80211_set_acl(void *priv, 6465 struct hostapd_acl_params *params) 6466{ 6467 struct i802_bss *bss = priv; 6468 struct wpa_driver_nl80211_data *drv = bss->drv; 6469 struct nl_msg *msg; 6470 struct nlattr *acl; 6471 unsigned int i; 6472 int ret = 0; 6473 6474 if (!(drv->capa.max_acl_mac_addrs)) 6475 return -ENOTSUP; 6476 6477 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6478 return -ENOTSUP; 6479 6480 msg = nlmsg_alloc(); 6481 if (!msg) 6482 return -ENOMEM; 6483 6484 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6485 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6486 6487 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6488 6489 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6490 6491 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6492 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6493 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6494 6495 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6496 if (acl == NULL) 6497 goto nla_put_failure; 6498 6499 for (i = 0; i < params->num_mac_acl; i++) 6500 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6501 6502 nla_nest_end(msg, acl); 6503 6504 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6505 msg = NULL; 6506 if (ret) { 6507 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6508 ret, strerror(-ret)); 6509 } 6510 6511nla_put_failure: 6512 nlmsg_free(msg); 6513 6514 return ret; 6515} 6516 6517 6518static int wpa_driver_nl80211_set_ap(void *priv, 6519 struct wpa_driver_ap_params *params) 6520{ 6521 struct i802_bss *bss = priv; 6522 struct wpa_driver_nl80211_data *drv = bss->drv; 6523 struct nl_msg *msg; 6524 u8 cmd = NL80211_CMD_NEW_BEACON; 6525 int ret; 6526 int beacon_set; 6527 int ifindex = if_nametoindex(bss->ifname); 6528 int num_suites; 6529 u32 suites[10]; 6530 u32 ver; 6531 6532 beacon_set = bss->beacon_set; 6533 6534 msg = nlmsg_alloc(); 6535 if (!msg) 6536 return -ENOMEM; 6537 6538 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6539 beacon_set); 6540 if (beacon_set) 6541 cmd = NL80211_CMD_SET_BEACON; 6542 6543 nl80211_cmd(drv, msg, 0, cmd); 6544 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6545 params->head, params->head_len); 6546 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6547 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6548 params->tail, params->tail_len); 6549 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6550 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6551 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6552 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6553 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6554 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6555 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6556 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6557 params->ssid, params->ssid_len); 6558 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6559 params->ssid); 6560 if (params->proberesp && params->proberesp_len) { 6561 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6562 params->proberesp, params->proberesp_len); 6563 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6564 params->proberesp); 6565 } 6566 switch (params->hide_ssid) { 6567 case NO_SSID_HIDING: 6568 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6569 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6570 NL80211_HIDDEN_SSID_NOT_IN_USE); 6571 break; 6572 case HIDDEN_SSID_ZERO_LEN: 6573 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6574 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6575 NL80211_HIDDEN_SSID_ZERO_LEN); 6576 break; 6577 case HIDDEN_SSID_ZERO_CONTENTS: 6578 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6579 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6580 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6581 break; 6582 } 6583 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6584 if (params->privacy) 6585 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6586 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6587 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6588 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6589 /* Leave out the attribute */ 6590 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6591 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6592 NL80211_AUTHTYPE_SHARED_KEY); 6593 else 6594 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6595 NL80211_AUTHTYPE_OPEN_SYSTEM); 6596 6597 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6598 ver = 0; 6599 if (params->wpa_version & WPA_PROTO_WPA) 6600 ver |= NL80211_WPA_VERSION_1; 6601 if (params->wpa_version & WPA_PROTO_RSN) 6602 ver |= NL80211_WPA_VERSION_2; 6603 if (ver) 6604 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6605 6606 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6607 params->key_mgmt_suites); 6608 num_suites = 0; 6609 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6610 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6611 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6612 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6613 if (num_suites) { 6614 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6615 num_suites * sizeof(u32), suites); 6616 } 6617 6618 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6619 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6620 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6621 6622 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6623 params->pairwise_ciphers); 6624 num_suites = 0; 6625 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6626 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6627 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6628 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6629 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6630 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6631 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6632 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6633 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6634 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6635 if (num_suites) { 6636 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6637 num_suites * sizeof(u32), suites); 6638 } 6639 6640 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6641 params->group_cipher); 6642 switch (params->group_cipher) { 6643 case WPA_CIPHER_CCMP: 6644 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6645 WLAN_CIPHER_SUITE_CCMP); 6646 break; 6647 case WPA_CIPHER_GCMP: 6648 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6649 WLAN_CIPHER_SUITE_GCMP); 6650 break; 6651 case WPA_CIPHER_TKIP: 6652 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6653 WLAN_CIPHER_SUITE_TKIP); 6654 break; 6655 case WPA_CIPHER_WEP104: 6656 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6657 WLAN_CIPHER_SUITE_WEP104); 6658 break; 6659 case WPA_CIPHER_WEP40: 6660 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6661 WLAN_CIPHER_SUITE_WEP40); 6662 break; 6663 } 6664 6665 if (params->beacon_ies) { 6666 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6667 params->beacon_ies); 6668 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6669 wpabuf_head(params->beacon_ies)); 6670 } 6671 if (params->proberesp_ies) { 6672 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6673 params->proberesp_ies); 6674 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6675 wpabuf_len(params->proberesp_ies), 6676 wpabuf_head(params->proberesp_ies)); 6677 } 6678 if (params->assocresp_ies) { 6679 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6680 params->assocresp_ies); 6681 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6682 wpabuf_len(params->assocresp_ies), 6683 wpabuf_head(params->assocresp_ies)); 6684 } 6685 6686 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6687 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6688 params->ap_max_inactivity); 6689 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6690 params->ap_max_inactivity); 6691 } 6692 6693 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6694 if (ret) { 6695 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6696 ret, strerror(-ret)); 6697 } else { 6698 bss->beacon_set = 1; 6699 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6700 params->short_slot_time, params->ht_opmode, 6701 params->isolate, params->basic_rates); 6702 } 6703 return ret; 6704 nla_put_failure: 6705 nlmsg_free(msg); 6706 return -ENOBUFS; 6707} 6708 6709 6710static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6711 struct hostapd_freq_params *freq) 6712{ 6713 struct wpa_driver_nl80211_data *drv = bss->drv; 6714 struct nl_msg *msg; 6715 int ret; 6716 6717 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6718 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6719 freq->freq, freq->ht_enabled, freq->vht_enabled, 6720 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6721 msg = nlmsg_alloc(); 6722 if (!msg) 6723 return -1; 6724 6725 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6726 6727 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6728 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6729 if (freq->vht_enabled) { 6730 switch (freq->bandwidth) { 6731 case 20: 6732 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6733 NL80211_CHAN_WIDTH_20); 6734 break; 6735 case 40: 6736 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6737 NL80211_CHAN_WIDTH_40); 6738 break; 6739 case 80: 6740 if (freq->center_freq2) 6741 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6742 NL80211_CHAN_WIDTH_80P80); 6743 else 6744 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6745 NL80211_CHAN_WIDTH_80); 6746 break; 6747 case 160: 6748 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6749 NL80211_CHAN_WIDTH_160); 6750 break; 6751 default: 6752 return -1; 6753 } 6754 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6755 if (freq->center_freq2) 6756 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6757 freq->center_freq2); 6758 } else if (freq->ht_enabled) { 6759 switch (freq->sec_channel_offset) { 6760 case -1: 6761 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6762 NL80211_CHAN_HT40MINUS); 6763 break; 6764 case 1: 6765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6766 NL80211_CHAN_HT40PLUS); 6767 break; 6768 default: 6769 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6770 NL80211_CHAN_HT20); 6771 break; 6772 } 6773 } 6774 6775 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6776 msg = NULL; 6777 if (ret == 0) { 6778 bss->freq = freq->freq; 6779 return 0; 6780 } 6781 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6782 "%d (%s)", freq->freq, ret, strerror(-ret)); 6783nla_put_failure: 6784 nlmsg_free(msg); 6785 return -1; 6786} 6787 6788 6789static u32 sta_flags_nl80211(int flags) 6790{ 6791 u32 f = 0; 6792 6793 if (flags & WPA_STA_AUTHORIZED) 6794 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6795 if (flags & WPA_STA_WMM) 6796 f |= BIT(NL80211_STA_FLAG_WME); 6797 if (flags & WPA_STA_SHORT_PREAMBLE) 6798 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6799 if (flags & WPA_STA_MFP) 6800 f |= BIT(NL80211_STA_FLAG_MFP); 6801 if (flags & WPA_STA_TDLS_PEER) 6802 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6803 6804 return f; 6805} 6806 6807 6808static int wpa_driver_nl80211_sta_add(void *priv, 6809 struct hostapd_sta_add_params *params) 6810{ 6811 struct i802_bss *bss = priv; 6812 struct wpa_driver_nl80211_data *drv = bss->drv; 6813 struct nl_msg *msg; 6814 struct nl80211_sta_flag_update upd; 6815 int ret = -ENOBUFS; 6816 6817 if ((params->flags & WPA_STA_TDLS_PEER) && 6818 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6819 return -EOPNOTSUPP; 6820 6821 msg = nlmsg_alloc(); 6822 if (!msg) 6823 return -ENOMEM; 6824 6825 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6826 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6827 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6828 NL80211_CMD_NEW_STATION); 6829 6830 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6831 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6832 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6833 params->supp_rates); 6834 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6835 params->supp_rates_len); 6836 if (!params->set) { 6837 if (params->aid) { 6838 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6839 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6840 } else { 6841 /* 6842 * cfg80211 validates that AID is non-zero, so we have 6843 * to make this a non-zero value for the TDLS case where 6844 * a dummy STA entry is used for now. 6845 */ 6846 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6847 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6848 } 6849 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6850 params->listen_interval); 6851 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6852 params->listen_interval); 6853 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6854 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6855 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6856 } 6857 if (params->ht_capabilities) { 6858 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6859 (u8 *) params->ht_capabilities, 6860 sizeof(*params->ht_capabilities)); 6861 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6862 sizeof(*params->ht_capabilities), 6863 params->ht_capabilities); 6864 } 6865 6866 if (params->vht_capabilities) { 6867 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6868 (u8 *) params->vht_capabilities, 6869 sizeof(*params->vht_capabilities)); 6870 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6871 sizeof(*params->vht_capabilities), 6872 params->vht_capabilities); 6873 } 6874 6875 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6876 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6877 6878 if (params->ext_capab) { 6879 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6880 params->ext_capab, params->ext_capab_len); 6881 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6882 params->ext_capab_len, params->ext_capab); 6883 } 6884 6885 os_memset(&upd, 0, sizeof(upd)); 6886 upd.mask = sta_flags_nl80211(params->flags); 6887 upd.set = upd.mask; 6888 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6889 upd.set, upd.mask); 6890 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6891 6892 if (params->flags & WPA_STA_WMM) { 6893 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6894 6895 if (!wme) 6896 goto nla_put_failure; 6897 6898 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6899 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6900 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6901 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6902 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6903 WMM_QOSINFO_STA_SP_MASK); 6904 nla_nest_end(msg, wme); 6905 } 6906 6907 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6908 msg = NULL; 6909 if (ret) 6910 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6911 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6912 strerror(-ret)); 6913 if (ret == -EEXIST) 6914 ret = 0; 6915 nla_put_failure: 6916 nlmsg_free(msg); 6917 return ret; 6918} 6919 6920 6921static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6922{ 6923 struct wpa_driver_nl80211_data *drv = bss->drv; 6924 struct nl_msg *msg; 6925 int ret; 6926 6927 msg = nlmsg_alloc(); 6928 if (!msg) 6929 return -ENOMEM; 6930 6931 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6932 6933 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6934 if_nametoindex(bss->ifname)); 6935 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6936 6937 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6938 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 6939 " --> %d (%s)", 6940 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 6941 if (ret == -ENOENT) 6942 return 0; 6943 return ret; 6944 nla_put_failure: 6945 nlmsg_free(msg); 6946 return -ENOBUFS; 6947} 6948 6949 6950static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6951 int ifidx) 6952{ 6953 struct nl_msg *msg; 6954 6955 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6956 6957 /* stop listening for EAPOL on this interface */ 6958 del_ifidx(drv, ifidx); 6959 6960 msg = nlmsg_alloc(); 6961 if (!msg) 6962 goto nla_put_failure; 6963 6964 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6965 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6966 6967 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6968 return; 6969 msg = NULL; 6970 nla_put_failure: 6971 nlmsg_free(msg); 6972 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6973} 6974 6975 6976static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6977{ 6978 switch (mode) { 6979 case NL80211_IFTYPE_ADHOC: 6980 return "ADHOC"; 6981 case NL80211_IFTYPE_STATION: 6982 return "STATION"; 6983 case NL80211_IFTYPE_AP: 6984 return "AP"; 6985 case NL80211_IFTYPE_AP_VLAN: 6986 return "AP_VLAN"; 6987 case NL80211_IFTYPE_WDS: 6988 return "WDS"; 6989 case NL80211_IFTYPE_MONITOR: 6990 return "MONITOR"; 6991 case NL80211_IFTYPE_MESH_POINT: 6992 return "MESH_POINT"; 6993 case NL80211_IFTYPE_P2P_CLIENT: 6994 return "P2P_CLIENT"; 6995 case NL80211_IFTYPE_P2P_GO: 6996 return "P2P_GO"; 6997 case NL80211_IFTYPE_P2P_DEVICE: 6998 return "P2P_DEVICE"; 6999 default: 7000 return "unknown"; 7001 } 7002} 7003 7004 7005static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 7006 const char *ifname, 7007 enum nl80211_iftype iftype, 7008 const u8 *addr, int wds, 7009 int (*handler)(struct nl_msg *, void *), 7010 void *arg) 7011{ 7012 struct nl_msg *msg; 7013 int ifidx; 7014 int ret = -ENOBUFS; 7015 7016 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 7017 iftype, nl80211_iftype_str(iftype)); 7018 7019 msg = nlmsg_alloc(); 7020 if (!msg) 7021 return -1; 7022 7023 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 7024 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 7025 goto nla_put_failure; 7026 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 7027 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 7028 7029 if (iftype == NL80211_IFTYPE_MONITOR) { 7030 struct nlattr *flags; 7031 7032 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 7033 if (!flags) 7034 goto nla_put_failure; 7035 7036 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 7037 7038 nla_nest_end(msg, flags); 7039 } else if (wds) { 7040 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 7041 } 7042 7043 ret = send_and_recv_msgs(drv, msg, handler, arg); 7044 msg = NULL; 7045 if (ret) { 7046 nla_put_failure: 7047 nlmsg_free(msg); 7048 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 7049 ifname, ret, strerror(-ret)); 7050 return ret; 7051 } 7052 7053 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 7054 return 0; 7055 7056 ifidx = if_nametoindex(ifname); 7057 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 7058 ifname, ifidx); 7059 7060 if (ifidx <= 0) 7061 return -1; 7062 7063 /* start listening for EAPOL on this interface */ 7064 add_ifidx(drv, ifidx); 7065 7066 if (addr && iftype != NL80211_IFTYPE_MONITOR && 7067 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 7068 nl80211_remove_iface(drv, ifidx); 7069 return -1; 7070 } 7071 7072 return ifidx; 7073} 7074 7075 7076static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 7077 const char *ifname, enum nl80211_iftype iftype, 7078 const u8 *addr, int wds, 7079 int (*handler)(struct nl_msg *, void *), 7080 void *arg) 7081{ 7082 int ret; 7083 7084 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 7085 arg); 7086 7087 /* if error occurred and interface exists already */ 7088 if (ret == -ENFILE && if_nametoindex(ifname)) { 7089 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 7090 7091 /* Try to remove the interface that was already there. */ 7092 nl80211_remove_iface(drv, if_nametoindex(ifname)); 7093 7094 /* Try to create the interface again */ 7095 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 7096 wds, handler, arg); 7097 } 7098 7099 if (ret >= 0 && is_p2p_net_interface(iftype)) 7100 nl80211_disable_11b_rates(drv, ret, 1); 7101 7102 return ret; 7103} 7104 7105 7106static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 7107{ 7108 struct ieee80211_hdr *hdr; 7109 u16 fc; 7110 union wpa_event_data event; 7111 7112 hdr = (struct ieee80211_hdr *) buf; 7113 fc = le_to_host16(hdr->frame_control); 7114 7115 os_memset(&event, 0, sizeof(event)); 7116 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 7117 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 7118 event.tx_status.dst = hdr->addr1; 7119 event.tx_status.data = buf; 7120 event.tx_status.data_len = len; 7121 event.tx_status.ack = ok; 7122 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 7123} 7124 7125 7126static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 7127 u8 *buf, size_t len) 7128{ 7129 struct ieee80211_hdr *hdr = (void *)buf; 7130 u16 fc; 7131 union wpa_event_data event; 7132 7133 if (len < sizeof(*hdr)) 7134 return; 7135 7136 fc = le_to_host16(hdr->frame_control); 7137 7138 os_memset(&event, 0, sizeof(event)); 7139 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 7140 event.rx_from_unknown.addr = hdr->addr2; 7141 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 7142 (WLAN_FC_FROMDS | WLAN_FC_TODS); 7143 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 7144} 7145 7146 7147static void handle_frame(struct wpa_driver_nl80211_data *drv, 7148 u8 *buf, size_t len, int datarate, int ssi_signal) 7149{ 7150 struct ieee80211_hdr *hdr; 7151 u16 fc; 7152 union wpa_event_data event; 7153 7154 hdr = (struct ieee80211_hdr *) buf; 7155 fc = le_to_host16(hdr->frame_control); 7156 7157 switch (WLAN_FC_GET_TYPE(fc)) { 7158 case WLAN_FC_TYPE_MGMT: 7159 os_memset(&event, 0, sizeof(event)); 7160 event.rx_mgmt.frame = buf; 7161 event.rx_mgmt.frame_len = len; 7162 event.rx_mgmt.datarate = datarate; 7163 event.rx_mgmt.ssi_signal = ssi_signal; 7164 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 7165 break; 7166 case WLAN_FC_TYPE_CTRL: 7167 /* can only get here with PS-Poll frames */ 7168 wpa_printf(MSG_DEBUG, "CTRL"); 7169 from_unknown_sta(drv, buf, len); 7170 break; 7171 case WLAN_FC_TYPE_DATA: 7172 from_unknown_sta(drv, buf, len); 7173 break; 7174 } 7175} 7176 7177 7178static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 7179{ 7180 struct wpa_driver_nl80211_data *drv = eloop_ctx; 7181 int len; 7182 unsigned char buf[3000]; 7183 struct ieee80211_radiotap_iterator iter; 7184 int ret; 7185 int datarate = 0, ssi_signal = 0; 7186 int injected = 0, failed = 0, rxflags = 0; 7187 7188 len = recv(sock, buf, sizeof(buf), 0); 7189 if (len < 0) { 7190 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", 7191 strerror(errno)); 7192 return; 7193 } 7194 7195 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 7196 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); 7197 return; 7198 } 7199 7200 while (1) { 7201 ret = ieee80211_radiotap_iterator_next(&iter); 7202 if (ret == -ENOENT) 7203 break; 7204 if (ret) { 7205 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", 7206 ret); 7207 return; 7208 } 7209 switch (iter.this_arg_index) { 7210 case IEEE80211_RADIOTAP_FLAGS: 7211 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 7212 len -= 4; 7213 break; 7214 case IEEE80211_RADIOTAP_RX_FLAGS: 7215 rxflags = 1; 7216 break; 7217 case IEEE80211_RADIOTAP_TX_FLAGS: 7218 injected = 1; 7219 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 7220 IEEE80211_RADIOTAP_F_TX_FAIL; 7221 break; 7222 case IEEE80211_RADIOTAP_DATA_RETRIES: 7223 break; 7224 case IEEE80211_RADIOTAP_CHANNEL: 7225 /* TODO: convert from freq/flags to channel number */ 7226 break; 7227 case IEEE80211_RADIOTAP_RATE: 7228 datarate = *iter.this_arg * 5; 7229 break; 7230 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7231 ssi_signal = (s8) *iter.this_arg; 7232 break; 7233 } 7234 } 7235 7236 if (rxflags && injected) 7237 return; 7238 7239 if (!injected) 7240 handle_frame(drv, buf + iter.max_length, 7241 len - iter.max_length, datarate, ssi_signal); 7242 else 7243 handle_tx_callback(drv->ctx, buf + iter.max_length, 7244 len - iter.max_length, !failed); 7245} 7246 7247 7248/* 7249 * we post-process the filter code later and rewrite 7250 * this to the offset to the last instruction 7251 */ 7252#define PASS 0xFF 7253#define FAIL 0xFE 7254 7255static struct sock_filter msock_filter_insns[] = { 7256 /* 7257 * do a little-endian load of the radiotap length field 7258 */ 7259 /* load lower byte into A */ 7260 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7261 /* put it into X (== index register) */ 7262 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7263 /* load upper byte into A */ 7264 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7265 /* left-shift it by 8 */ 7266 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7267 /* or with X */ 7268 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7269 /* put result into X */ 7270 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7271 7272 /* 7273 * Allow management frames through, this also gives us those 7274 * management frames that we sent ourselves with status 7275 */ 7276 /* load the lower byte of the IEEE 802.11 frame control field */ 7277 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7278 /* mask off frame type and version */ 7279 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7280 /* accept frame if it's both 0, fall through otherwise */ 7281 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7282 7283 /* 7284 * TODO: add a bit to radiotap RX flags that indicates 7285 * that the sending station is not associated, then 7286 * add a filter here that filters on our DA and that flag 7287 * to allow us to deauth frames to that bad station. 7288 * 7289 * For now allow all To DS data frames through. 7290 */ 7291 /* load the IEEE 802.11 frame control field */ 7292 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7293 /* mask off frame type, version and DS status */ 7294 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7295 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7296 */ 7297 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7298 7299#if 0 7300 /* 7301 * drop non-data frames 7302 */ 7303 /* load the lower byte of the frame control field */ 7304 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7305 /* mask off QoS bit */ 7306 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7307 /* drop non-data frames */ 7308 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7309#endif 7310 /* load the upper byte of the frame control field */ 7311 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7312 /* mask off toDS/fromDS */ 7313 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7314 /* accept WDS frames */ 7315 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7316 7317 /* 7318 * add header length to index 7319 */ 7320 /* load the lower byte of the frame control field */ 7321 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7322 /* mask off QoS bit */ 7323 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7324 /* right shift it by 6 to give 0 or 2 */ 7325 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7326 /* add data frame header length */ 7327 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7328 /* add index, was start of 802.11 header */ 7329 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7330 /* move to index, now start of LL header */ 7331 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7332 7333 /* 7334 * Accept empty data frames, we use those for 7335 * polling activity. 7336 */ 7337 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7338 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7339 7340 /* 7341 * Accept EAPOL frames 7342 */ 7343 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7344 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7345 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7346 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7347 7348 /* keep these last two statements or change the code below */ 7349 /* return 0 == "DROP" */ 7350 BPF_STMT(BPF_RET | BPF_K, 0), 7351 /* return ~0 == "keep all" */ 7352 BPF_STMT(BPF_RET | BPF_K, ~0), 7353}; 7354 7355static struct sock_fprog msock_filter = { 7356 .len = ARRAY_SIZE(msock_filter_insns), 7357 .filter = msock_filter_insns, 7358}; 7359 7360 7361static int add_monitor_filter(int s) 7362{ 7363 int idx; 7364 7365 /* rewrite all PASS/FAIL jump offsets */ 7366 for (idx = 0; idx < msock_filter.len; idx++) { 7367 struct sock_filter *insn = &msock_filter_insns[idx]; 7368 7369 if (BPF_CLASS(insn->code) == BPF_JMP) { 7370 if (insn->code == (BPF_JMP|BPF_JA)) { 7371 if (insn->k == PASS) 7372 insn->k = msock_filter.len - idx - 2; 7373 else if (insn->k == FAIL) 7374 insn->k = msock_filter.len - idx - 3; 7375 } 7376 7377 if (insn->jt == PASS) 7378 insn->jt = msock_filter.len - idx - 2; 7379 else if (insn->jt == FAIL) 7380 insn->jt = msock_filter.len - idx - 3; 7381 7382 if (insn->jf == PASS) 7383 insn->jf = msock_filter.len - idx - 2; 7384 else if (insn->jf == FAIL) 7385 insn->jf = msock_filter.len - idx - 3; 7386 } 7387 } 7388 7389 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7390 &msock_filter, sizeof(msock_filter))) { 7391 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", 7392 strerror(errno)); 7393 return -1; 7394 } 7395 7396 return 0; 7397} 7398 7399 7400static void nl80211_remove_monitor_interface( 7401 struct wpa_driver_nl80211_data *drv) 7402{ 7403 drv->monitor_refcount--; 7404 if (drv->monitor_refcount > 0) 7405 return; 7406 7407 if (drv->monitor_ifidx >= 0) { 7408 nl80211_remove_iface(drv, drv->monitor_ifidx); 7409 drv->monitor_ifidx = -1; 7410 } 7411 if (drv->monitor_sock >= 0) { 7412 eloop_unregister_read_sock(drv->monitor_sock); 7413 close(drv->monitor_sock); 7414 drv->monitor_sock = -1; 7415 } 7416} 7417 7418 7419static int 7420nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7421{ 7422 char buf[IFNAMSIZ]; 7423 struct sockaddr_ll ll; 7424 int optval; 7425 socklen_t optlen; 7426 7427 if (drv->monitor_ifidx >= 0) { 7428 drv->monitor_refcount++; 7429 return 0; 7430 } 7431 7432 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7433 /* 7434 * P2P interface name is of the format p2p-%s-%d. For monitor 7435 * interface name corresponding to P2P GO, replace "p2p-" with 7436 * "mon-" to retain the same interface name length and to 7437 * indicate that it is a monitor interface. 7438 */ 7439 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7440 } else { 7441 /* Non-P2P interface with AP functionality. */ 7442 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7443 } 7444 7445 buf[IFNAMSIZ - 1] = '\0'; 7446 7447 drv->monitor_ifidx = 7448 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7449 0, NULL, NULL); 7450 7451 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7452 /* 7453 * This is backward compatibility for a few versions of 7454 * the kernel only that didn't advertise the right 7455 * attributes for the only driver that then supported 7456 * AP mode w/o monitor -- ath6kl. 7457 */ 7458 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7459 "monitor interface type - try to run without it"); 7460 drv->device_ap_sme = 1; 7461 } 7462 7463 if (drv->monitor_ifidx < 0) 7464 return -1; 7465 7466 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7467 goto error; 7468 7469 memset(&ll, 0, sizeof(ll)); 7470 ll.sll_family = AF_PACKET; 7471 ll.sll_ifindex = drv->monitor_ifidx; 7472 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7473 if (drv->monitor_sock < 0) { 7474 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", 7475 strerror(errno)); 7476 goto error; 7477 } 7478 7479 if (add_monitor_filter(drv->monitor_sock)) { 7480 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7481 "interface; do filtering in user space"); 7482 /* This works, but will cost in performance. */ 7483 } 7484 7485 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7486 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", 7487 strerror(errno)); 7488 goto error; 7489 } 7490 7491 optlen = sizeof(optval); 7492 optval = 20; 7493 if (setsockopt 7494 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7495 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", 7496 strerror(errno)); 7497 goto error; 7498 } 7499 7500 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7501 drv, NULL)) { 7502 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); 7503 goto error; 7504 } 7505 7506 return 0; 7507 error: 7508 nl80211_remove_monitor_interface(drv); 7509 return -1; 7510} 7511 7512 7513static int nl80211_setup_ap(struct i802_bss *bss) 7514{ 7515 struct wpa_driver_nl80211_data *drv = bss->drv; 7516 7517 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7518 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7519 7520 /* 7521 * Disable Probe Request reporting unless we need it in this way for 7522 * devices that include the AP SME, in the other case (unless using 7523 * monitor iface) we'll get it through the nl_mgmt socket instead. 7524 */ 7525 if (!drv->device_ap_sme) 7526 wpa_driver_nl80211_probe_req_report(bss, 0); 7527 7528 if (!drv->device_ap_sme && !drv->use_monitor) 7529 if (nl80211_mgmt_subscribe_ap(bss)) 7530 return -1; 7531 7532 if (drv->device_ap_sme && !drv->use_monitor) 7533 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7534 return -1; 7535 7536 if (!drv->device_ap_sme && drv->use_monitor && 7537 nl80211_create_monitor_interface(drv) && 7538 !drv->device_ap_sme) 7539 return -1; 7540 7541#ifdef ANDROID_P2P 7542 if (drv->device_ap_sme && drv->use_monitor) 7543 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7544 return -1; 7545 7546 if (drv->use_monitor && 7547 nl80211_create_monitor_interface(drv)) 7548 return -1; 7549#endif 7550 7551 if (drv->device_ap_sme && 7552 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7553 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7554 "Probe Request frame reporting in AP mode"); 7555 /* Try to survive without this */ 7556 } 7557 7558 return 0; 7559} 7560 7561 7562static void nl80211_teardown_ap(struct i802_bss *bss) 7563{ 7564 struct wpa_driver_nl80211_data *drv = bss->drv; 7565 7566 if (drv->device_ap_sme) { 7567 wpa_driver_nl80211_probe_req_report(bss, 0); 7568 if (!drv->use_monitor) 7569 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7570 } else if (drv->use_monitor) 7571 nl80211_remove_monitor_interface(drv); 7572 else 7573 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7574 7575 bss->beacon_set = 0; 7576} 7577 7578 7579static int nl80211_send_eapol_data(struct i802_bss *bss, 7580 const u8 *addr, const u8 *data, 7581 size_t data_len) 7582{ 7583 struct sockaddr_ll ll; 7584 int ret; 7585 7586 if (bss->drv->eapol_tx_sock < 0) { 7587 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7588 return -1; 7589 } 7590 7591 os_memset(&ll, 0, sizeof(ll)); 7592 ll.sll_family = AF_PACKET; 7593 ll.sll_ifindex = bss->ifindex; 7594 ll.sll_protocol = htons(ETH_P_PAE); 7595 ll.sll_halen = ETH_ALEN; 7596 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7597 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7598 (struct sockaddr *) &ll, sizeof(ll)); 7599 if (ret < 0) 7600 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7601 strerror(errno)); 7602 7603 return ret; 7604} 7605 7606 7607static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7608 7609static int wpa_driver_nl80211_hapd_send_eapol( 7610 void *priv, const u8 *addr, const u8 *data, 7611 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7612{ 7613 struct i802_bss *bss = priv; 7614 struct wpa_driver_nl80211_data *drv = bss->drv; 7615 struct ieee80211_hdr *hdr; 7616 size_t len; 7617 u8 *pos; 7618 int res; 7619 int qos = flags & WPA_STA_WMM; 7620#ifndef ANDROID_P2P 7621 if (drv->device_ap_sme || !drv->use_monitor) 7622#else 7623 if (drv->device_ap_sme && !drv->use_monitor) 7624#endif 7625 return nl80211_send_eapol_data(bss, addr, data, data_len); 7626 7627 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7628 data_len; 7629 hdr = os_zalloc(len); 7630 if (hdr == NULL) { 7631 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 7632 (unsigned long) len); 7633 return -1; 7634 } 7635 7636 hdr->frame_control = 7637 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7638 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7639 if (encrypt) 7640 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7641 if (qos) { 7642 hdr->frame_control |= 7643 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7644 } 7645 7646 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7647 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7648 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7649 pos = (u8 *) (hdr + 1); 7650 7651 if (qos) { 7652 /* Set highest priority in QoS header */ 7653 pos[0] = 7; 7654 pos[1] = 0; 7655 pos += 2; 7656 } 7657 7658 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7659 pos += sizeof(rfc1042_header); 7660 WPA_PUT_BE16(pos, ETH_P_PAE); 7661 pos += 2; 7662 memcpy(pos, data, data_len); 7663 7664 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7665 0, 0, 0, 0); 7666 if (res < 0) { 7667 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7668 "failed: %d (%s)", 7669 (unsigned long) len, errno, strerror(errno)); 7670 } 7671 os_free(hdr); 7672 7673 return res; 7674} 7675 7676 7677static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7678 int total_flags, 7679 int flags_or, int flags_and) 7680{ 7681 struct i802_bss *bss = priv; 7682 struct wpa_driver_nl80211_data *drv = bss->drv; 7683 struct nl_msg *msg; 7684 struct nlattr *flags; 7685 struct nl80211_sta_flag_update upd; 7686 7687 msg = nlmsg_alloc(); 7688 if (!msg) 7689 return -ENOMEM; 7690 7691 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7692 7693 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7694 if_nametoindex(bss->ifname)); 7695 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7696 7697 /* 7698 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7699 * can be removed eventually. 7700 */ 7701 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7702 if (!flags) 7703 goto nla_put_failure; 7704 if (total_flags & WPA_STA_AUTHORIZED) 7705 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7706 7707 if (total_flags & WPA_STA_WMM) 7708 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7709 7710 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7711 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7712 7713 if (total_flags & WPA_STA_MFP) 7714 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7715 7716 if (total_flags & WPA_STA_TDLS_PEER) 7717 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7718 7719 nla_nest_end(msg, flags); 7720 7721 os_memset(&upd, 0, sizeof(upd)); 7722 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7723 upd.set = sta_flags_nl80211(flags_or); 7724 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7725 7726 return send_and_recv_msgs(drv, msg, NULL, NULL); 7727 nla_put_failure: 7728 nlmsg_free(msg); 7729 return -ENOBUFS; 7730} 7731 7732 7733static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7734 struct wpa_driver_associate_params *params) 7735{ 7736 enum nl80211_iftype nlmode, old_mode; 7737 struct hostapd_freq_params freq = { 7738 .freq = params->freq, 7739 }; 7740 7741 if (params->p2p) { 7742 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7743 "group (GO)"); 7744 nlmode = NL80211_IFTYPE_P2P_GO; 7745 } else 7746 nlmode = NL80211_IFTYPE_AP; 7747 7748 old_mode = drv->nlmode; 7749 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7750 nl80211_remove_monitor_interface(drv); 7751 return -1; 7752 } 7753 7754 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7755 if (old_mode != nlmode) 7756 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7757 nl80211_remove_monitor_interface(drv); 7758 return -1; 7759 } 7760 7761 return 0; 7762} 7763 7764 7765static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7766{ 7767 struct nl_msg *msg; 7768 int ret = -1; 7769 7770 msg = nlmsg_alloc(); 7771 if (!msg) 7772 return -1; 7773 7774 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7775 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7776 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7777 msg = NULL; 7778 if (ret) { 7779 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7780 "(%s)", ret, strerror(-ret)); 7781 goto nla_put_failure; 7782 } 7783 7784 ret = 0; 7785 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7786 7787nla_put_failure: 7788 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7789 NL80211_IFTYPE_STATION)) { 7790 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7791 "station mode"); 7792 } 7793 7794 nlmsg_free(msg); 7795 return ret; 7796} 7797 7798 7799static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7800 struct wpa_driver_associate_params *params) 7801{ 7802 struct nl_msg *msg; 7803 int ret = -1; 7804 int count = 0; 7805 7806 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7807 7808 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7809 NL80211_IFTYPE_ADHOC)) { 7810 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7811 "IBSS mode"); 7812 return -1; 7813 } 7814 7815retry: 7816 msg = nlmsg_alloc(); 7817 if (!msg) 7818 return -1; 7819 7820 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7821 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7822 7823 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7824 goto nla_put_failure; 7825 7826 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7827 params->ssid, params->ssid_len); 7828 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7829 params->ssid); 7830 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7831 drv->ssid_len = params->ssid_len; 7832 7833 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7835 7836 ret = nl80211_set_conn_keys(params, msg); 7837 if (ret) 7838 goto nla_put_failure; 7839 7840 if (params->bssid && params->fixed_bssid) { 7841 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7842 MAC2STR(params->bssid)); 7843 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7844 } 7845 7846 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7847 params->key_mgmt_suite == KEY_MGMT_PSK || 7848 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7849 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7850 wpa_printf(MSG_DEBUG, " * control port"); 7851 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7852 } 7853 7854 if (params->wpa_ie) { 7855 wpa_hexdump(MSG_DEBUG, 7856 " * Extra IEs for Beacon/Probe Response frames", 7857 params->wpa_ie, params->wpa_ie_len); 7858 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7859 params->wpa_ie); 7860 } 7861 7862 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7863 msg = NULL; 7864 if (ret) { 7865 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7866 ret, strerror(-ret)); 7867 count++; 7868 if (ret == -EALREADY && count == 1) { 7869 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7870 "forced leave"); 7871 nl80211_leave_ibss(drv); 7872 nlmsg_free(msg); 7873 goto retry; 7874 } 7875 7876 goto nla_put_failure; 7877 } 7878 ret = 0; 7879 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7880 7881nla_put_failure: 7882 nlmsg_free(msg); 7883 return ret; 7884} 7885 7886 7887static int wpa_driver_nl80211_try_connect( 7888 struct wpa_driver_nl80211_data *drv, 7889 struct wpa_driver_associate_params *params) 7890{ 7891 struct nl_msg *msg; 7892 enum nl80211_auth_type type; 7893 int ret = 0; 7894 int algs; 7895 7896 msg = nlmsg_alloc(); 7897 if (!msg) 7898 return -1; 7899 7900 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7901 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7902 7903 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7904 if (params->bssid) { 7905 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7906 MAC2STR(params->bssid)); 7907 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7908 } 7909 if (params->freq) { 7910 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7911 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7912 drv->assoc_freq = params->freq; 7913 } else 7914 drv->assoc_freq = 0; 7915 if (params->bg_scan_period >= 0) { 7916 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7917 params->bg_scan_period); 7918 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7919 params->bg_scan_period); 7920 } 7921 if (params->ssid) { 7922 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7923 params->ssid, params->ssid_len); 7924 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7925 params->ssid); 7926 if (params->ssid_len > sizeof(drv->ssid)) 7927 goto nla_put_failure; 7928 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7929 drv->ssid_len = params->ssid_len; 7930 } 7931 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7932 if (params->wpa_ie) 7933 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7934 params->wpa_ie); 7935 7936 algs = 0; 7937 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7938 algs++; 7939 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7940 algs++; 7941 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7942 algs++; 7943 if (algs > 1) { 7944 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7945 "selection"); 7946 goto skip_auth_type; 7947 } 7948 7949 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7950 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7951 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7952 type = NL80211_AUTHTYPE_SHARED_KEY; 7953 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7954 type = NL80211_AUTHTYPE_NETWORK_EAP; 7955 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7956 type = NL80211_AUTHTYPE_FT; 7957 else 7958 goto nla_put_failure; 7959 7960 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7961 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7962 7963skip_auth_type: 7964 if (params->wpa_proto) { 7965 enum nl80211_wpa_versions ver = 0; 7966 7967 if (params->wpa_proto & WPA_PROTO_WPA) 7968 ver |= NL80211_WPA_VERSION_1; 7969 if (params->wpa_proto & WPA_PROTO_RSN) 7970 ver |= NL80211_WPA_VERSION_2; 7971 7972 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7973 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7974 } 7975 7976 if (params->pairwise_suite != CIPHER_NONE) { 7977 int cipher; 7978 7979 switch (params->pairwise_suite) { 7980 case CIPHER_SMS4: 7981 cipher = WLAN_CIPHER_SUITE_SMS4; 7982 break; 7983 case CIPHER_WEP40: 7984 cipher = WLAN_CIPHER_SUITE_WEP40; 7985 break; 7986 case CIPHER_WEP104: 7987 cipher = WLAN_CIPHER_SUITE_WEP104; 7988 break; 7989 case CIPHER_CCMP: 7990 cipher = WLAN_CIPHER_SUITE_CCMP; 7991 break; 7992 case CIPHER_GCMP: 7993 cipher = WLAN_CIPHER_SUITE_GCMP; 7994 break; 7995 case CIPHER_TKIP: 7996 default: 7997 cipher = WLAN_CIPHER_SUITE_TKIP; 7998 break; 7999 } 8000 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8001 } 8002 8003 if (params->group_suite != CIPHER_NONE) { 8004 int cipher; 8005 8006 switch (params->group_suite) { 8007 case CIPHER_SMS4: 8008 cipher = WLAN_CIPHER_SUITE_SMS4; 8009 break; 8010 case CIPHER_WEP40: 8011 cipher = WLAN_CIPHER_SUITE_WEP40; 8012 break; 8013 case CIPHER_WEP104: 8014 cipher = WLAN_CIPHER_SUITE_WEP104; 8015 break; 8016 case CIPHER_CCMP: 8017 cipher = WLAN_CIPHER_SUITE_CCMP; 8018 break; 8019 case CIPHER_GCMP: 8020 cipher = WLAN_CIPHER_SUITE_GCMP; 8021 break; 8022 case CIPHER_TKIP: 8023 default: 8024 cipher = WLAN_CIPHER_SUITE_TKIP; 8025 break; 8026 } 8027 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8028 } 8029 8030 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 8031 params->key_mgmt_suite == KEY_MGMT_PSK || 8032 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 8033 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 8034 params->key_mgmt_suite == KEY_MGMT_CCKM) { 8035 int mgmt = WLAN_AKM_SUITE_PSK; 8036 8037 switch (params->key_mgmt_suite) { 8038 case KEY_MGMT_CCKM: 8039 mgmt = WLAN_AKM_SUITE_CCKM; 8040 break; 8041 case KEY_MGMT_802_1X: 8042 mgmt = WLAN_AKM_SUITE_8021X; 8043 break; 8044 case KEY_MGMT_FT_802_1X: 8045 mgmt = WLAN_AKM_SUITE_FT_8021X; 8046 break; 8047 case KEY_MGMT_FT_PSK: 8048 mgmt = WLAN_AKM_SUITE_FT_PSK; 8049 break; 8050 case KEY_MGMT_PSK: 8051 default: 8052 mgmt = WLAN_AKM_SUITE_PSK; 8053 break; 8054 } 8055 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 8056 } 8057 8058#ifdef CONFIG_IEEE80211W 8059 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8060 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8061#endif /* CONFIG_IEEE80211W */ 8062 8063 if (params->disable_ht) 8064 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8065 8066 if (params->htcaps && params->htcaps_mask) { 8067 int sz = sizeof(struct ieee80211_ht_capabilities); 8068 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8069 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8070 params->htcaps_mask); 8071 } 8072 8073#ifdef CONFIG_VHT_OVERRIDES 8074 if (params->disable_vht) { 8075 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8076 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8077 } 8078 8079 if (params->vhtcaps && params->vhtcaps_mask) { 8080 int sz = sizeof(struct ieee80211_vht_capabilities); 8081 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8082 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8083 params->vhtcaps_mask); 8084 } 8085#endif /* CONFIG_VHT_OVERRIDES */ 8086 8087 ret = nl80211_set_conn_keys(params, msg); 8088 if (ret) 8089 goto nla_put_failure; 8090 8091 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8092 msg = NULL; 8093 if (ret) { 8094 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 8095 "(%s)", ret, strerror(-ret)); 8096 goto nla_put_failure; 8097 } 8098 ret = 0; 8099 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 8100 8101nla_put_failure: 8102 nlmsg_free(msg); 8103 return ret; 8104 8105} 8106 8107 8108static int wpa_driver_nl80211_connect( 8109 struct wpa_driver_nl80211_data *drv, 8110 struct wpa_driver_associate_params *params) 8111{ 8112 int ret = wpa_driver_nl80211_try_connect(drv, params); 8113 if (ret == -EALREADY) { 8114 /* 8115 * cfg80211 does not currently accept new connections if 8116 * we are already connected. As a workaround, force 8117 * disconnection and try again. 8118 */ 8119 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 8120 "disconnecting before reassociation " 8121 "attempt"); 8122 if (wpa_driver_nl80211_disconnect( 8123 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 8124 return -1; 8125 ret = wpa_driver_nl80211_try_connect(drv, params); 8126 } 8127 return ret; 8128} 8129 8130 8131static int wpa_driver_nl80211_associate( 8132 void *priv, struct wpa_driver_associate_params *params) 8133{ 8134 struct i802_bss *bss = priv; 8135 struct wpa_driver_nl80211_data *drv = bss->drv; 8136 int ret = -1; 8137 struct nl_msg *msg; 8138 8139 if (params->mode == IEEE80211_MODE_AP) 8140 return wpa_driver_nl80211_ap(drv, params); 8141 8142 if (params->mode == IEEE80211_MODE_IBSS) 8143 return wpa_driver_nl80211_ibss(drv, params); 8144 8145 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 8146 enum nl80211_iftype nlmode = params->p2p ? 8147 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 8148 8149 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 8150 return -1; 8151 return wpa_driver_nl80211_connect(drv, params); 8152 } 8153 8154 nl80211_mark_disconnected(drv); 8155 8156 msg = nlmsg_alloc(); 8157 if (!msg) 8158 return -1; 8159 8160 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 8161 drv->ifindex); 8162 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 8163 8164 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8165 if (params->bssid) { 8166 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 8167 MAC2STR(params->bssid)); 8168 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 8169 } 8170 if (params->freq) { 8171 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 8172 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 8173 drv->assoc_freq = params->freq; 8174 } else 8175 drv->assoc_freq = 0; 8176 if (params->bg_scan_period >= 0) { 8177 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 8178 params->bg_scan_period); 8179 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 8180 params->bg_scan_period); 8181 } 8182 if (params->ssid) { 8183 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 8184 params->ssid, params->ssid_len); 8185 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 8186 params->ssid); 8187 if (params->ssid_len > sizeof(drv->ssid)) 8188 goto nla_put_failure; 8189 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 8190 drv->ssid_len = params->ssid_len; 8191 } 8192 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 8193 if (params->wpa_ie) 8194 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 8195 params->wpa_ie); 8196 8197 if (params->pairwise_suite != CIPHER_NONE) { 8198 int cipher; 8199 8200 switch (params->pairwise_suite) { 8201 case CIPHER_WEP40: 8202 cipher = WLAN_CIPHER_SUITE_WEP40; 8203 break; 8204 case CIPHER_WEP104: 8205 cipher = WLAN_CIPHER_SUITE_WEP104; 8206 break; 8207 case CIPHER_CCMP: 8208 cipher = WLAN_CIPHER_SUITE_CCMP; 8209 break; 8210 case CIPHER_GCMP: 8211 cipher = WLAN_CIPHER_SUITE_GCMP; 8212 break; 8213 case CIPHER_TKIP: 8214 default: 8215 cipher = WLAN_CIPHER_SUITE_TKIP; 8216 break; 8217 } 8218 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 8219 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 8220 } 8221 8222 if (params->group_suite != CIPHER_NONE) { 8223 int cipher; 8224 8225 switch (params->group_suite) { 8226 case CIPHER_WEP40: 8227 cipher = WLAN_CIPHER_SUITE_WEP40; 8228 break; 8229 case CIPHER_WEP104: 8230 cipher = WLAN_CIPHER_SUITE_WEP104; 8231 break; 8232 case CIPHER_CCMP: 8233 cipher = WLAN_CIPHER_SUITE_CCMP; 8234 break; 8235 case CIPHER_GCMP: 8236 cipher = WLAN_CIPHER_SUITE_GCMP; 8237 break; 8238 case CIPHER_TKIP: 8239 default: 8240 cipher = WLAN_CIPHER_SUITE_TKIP; 8241 break; 8242 } 8243 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8244 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8245 } 8246 8247#ifdef CONFIG_IEEE80211W 8248 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8249 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8250#endif /* CONFIG_IEEE80211W */ 8251 8252 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8253 8254 if (params->prev_bssid) { 8255 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8256 MAC2STR(params->prev_bssid)); 8257 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8258 params->prev_bssid); 8259 } 8260 8261 if (params->disable_ht) 8262 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8263 8264 if (params->htcaps && params->htcaps_mask) { 8265 int sz = sizeof(struct ieee80211_ht_capabilities); 8266 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8267 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8268 params->htcaps_mask); 8269 } 8270 8271#ifdef CONFIG_VHT_OVERRIDES 8272 if (params->disable_vht) { 8273 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8274 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8275 } 8276 8277 if (params->vhtcaps && params->vhtcaps_mask) { 8278 int sz = sizeof(struct ieee80211_vht_capabilities); 8279 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8280 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8281 params->vhtcaps_mask); 8282 } 8283#endif /* CONFIG_VHT_OVERRIDES */ 8284 8285 if (params->p2p) 8286 wpa_printf(MSG_DEBUG, " * P2P group"); 8287 8288 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8289 msg = NULL; 8290 if (ret) { 8291 wpa_dbg(drv->ctx, MSG_DEBUG, 8292 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8293 ret, strerror(-ret)); 8294 nl80211_dump_scan(drv); 8295 goto nla_put_failure; 8296 } 8297 ret = 0; 8298 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8299 "successfully"); 8300 8301nla_put_failure: 8302 nlmsg_free(msg); 8303 return ret; 8304} 8305 8306 8307static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8308 int ifindex, enum nl80211_iftype mode) 8309{ 8310 struct nl_msg *msg; 8311 int ret = -ENOBUFS; 8312 8313 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8314 ifindex, mode, nl80211_iftype_str(mode)); 8315 8316 msg = nlmsg_alloc(); 8317 if (!msg) 8318 return -ENOMEM; 8319 8320 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8321 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8322 goto nla_put_failure; 8323 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8324 8325 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8326 msg = NULL; 8327 if (!ret) 8328 return 0; 8329nla_put_failure: 8330 nlmsg_free(msg); 8331 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8332 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8333 return ret; 8334} 8335 8336 8337static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8338 enum nl80211_iftype nlmode) 8339{ 8340 struct wpa_driver_nl80211_data *drv = bss->drv; 8341 int ret = -1; 8342 int i; 8343 int was_ap = is_ap_interface(drv->nlmode); 8344 int res; 8345 8346 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8347 if (res && nlmode == nl80211_get_ifmode(bss)) 8348 res = 0; 8349 8350 if (res == 0) { 8351 drv->nlmode = nlmode; 8352 ret = 0; 8353 goto done; 8354 } 8355 8356 if (res == -ENODEV) 8357 return -1; 8358 8359 if (nlmode == drv->nlmode) { 8360 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8361 "requested mode - ignore error"); 8362 ret = 0; 8363 goto done; /* Already in the requested mode */ 8364 } 8365 8366 /* mac80211 doesn't allow mode changes while the device is up, so 8367 * take the device down, try to set the mode again, and bring the 8368 * device back up. 8369 */ 8370 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8371 "interface down"); 8372 for (i = 0; i < 10; i++) { 8373 res = i802_set_iface_flags(bss, 0); 8374 if (res == -EACCES || res == -ENODEV) 8375 break; 8376 if (res == 0) { 8377 /* Try to set the mode again while the interface is 8378 * down */ 8379 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8380 if (ret == -EACCES) 8381 break; 8382 res = i802_set_iface_flags(bss, 1); 8383 if (res && !ret) 8384 ret = -1; 8385 else if (ret != -EBUSY) 8386 break; 8387 } else 8388 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8389 "interface down"); 8390 os_sleep(0, 100000); 8391 } 8392 8393 if (!ret) { 8394 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8395 "interface is down"); 8396 drv->nlmode = nlmode; 8397 drv->ignore_if_down_event = 1; 8398 } 8399 8400done: 8401 if (ret) { 8402 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8403 "from %d failed", nlmode, drv->nlmode); 8404 return ret; 8405 } 8406 8407 if (is_p2p_net_interface(nlmode)) 8408 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8409 else if (drv->disabled_11b_rates) 8410 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8411 8412 if (is_ap_interface(nlmode)) { 8413 nl80211_mgmt_unsubscribe(bss, "start AP"); 8414 /* Setup additional AP mode functionality if needed */ 8415 if (nl80211_setup_ap(bss)) 8416 return -1; 8417 } else if (was_ap) { 8418 /* Remove additional AP mode functionality */ 8419 nl80211_teardown_ap(bss); 8420 } else { 8421 nl80211_mgmt_unsubscribe(bss, "mode change"); 8422 } 8423 8424 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8425 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8426 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8427 "frame processing - ignore for now"); 8428 8429 return 0; 8430} 8431 8432 8433static int wpa_driver_nl80211_get_capa(void *priv, 8434 struct wpa_driver_capa *capa) 8435{ 8436 struct i802_bss *bss = priv; 8437 struct wpa_driver_nl80211_data *drv = bss->drv; 8438 if (!drv->has_capability) 8439 return -1; 8440 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8441 if (drv->extended_capa && drv->extended_capa_mask) { 8442 capa->extended_capa = drv->extended_capa; 8443 capa->extended_capa_mask = drv->extended_capa_mask; 8444 capa->extended_capa_len = drv->extended_capa_len; 8445 } 8446 8447 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8448 !drv->allow_p2p_device) { 8449 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8450 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8451 } 8452 8453 return 0; 8454} 8455 8456 8457static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8458{ 8459 struct i802_bss *bss = priv; 8460 struct wpa_driver_nl80211_data *drv = bss->drv; 8461 8462 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8463 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8464 drv->operstate = state; 8465 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8466 state ? IF_OPER_UP : IF_OPER_DORMANT); 8467} 8468 8469 8470static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8471{ 8472 struct i802_bss *bss = priv; 8473 struct wpa_driver_nl80211_data *drv = bss->drv; 8474 struct nl_msg *msg; 8475 struct nl80211_sta_flag_update upd; 8476 8477 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8478 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8479 8480 msg = nlmsg_alloc(); 8481 if (!msg) 8482 return -ENOMEM; 8483 8484 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8485 8486 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8487 if_nametoindex(bss->ifname)); 8488 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8489 8490 os_memset(&upd, 0, sizeof(upd)); 8491 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8492 if (authorized) 8493 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8494 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8495 8496 return send_and_recv_msgs(drv, msg, NULL, NULL); 8497 nla_put_failure: 8498 nlmsg_free(msg); 8499 return -ENOBUFS; 8500} 8501 8502 8503/* Set kernel driver on given frequency (MHz) */ 8504static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8505{ 8506 struct i802_bss *bss = priv; 8507 return wpa_driver_nl80211_set_freq(bss, freq); 8508} 8509 8510 8511#if defined(HOSTAPD) || defined(CONFIG_AP) 8512 8513static inline int min_int(int a, int b) 8514{ 8515 if (a < b) 8516 return a; 8517 return b; 8518} 8519 8520 8521static int get_key_handler(struct nl_msg *msg, void *arg) 8522{ 8523 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8524 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8525 8526 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8527 genlmsg_attrlen(gnlh, 0), NULL); 8528 8529 /* 8530 * TODO: validate the key index and mac address! 8531 * Otherwise, there's a race condition as soon as 8532 * the kernel starts sending key notifications. 8533 */ 8534 8535 if (tb[NL80211_ATTR_KEY_SEQ]) 8536 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8537 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8538 return NL_SKIP; 8539} 8540 8541 8542static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8543 int idx, u8 *seq) 8544{ 8545 struct i802_bss *bss = priv; 8546 struct wpa_driver_nl80211_data *drv = bss->drv; 8547 struct nl_msg *msg; 8548 8549 msg = nlmsg_alloc(); 8550 if (!msg) 8551 return -ENOMEM; 8552 8553 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8554 8555 if (addr) 8556 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8557 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8558 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8559 8560 memset(seq, 0, 6); 8561 8562 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8563 nla_put_failure: 8564 nlmsg_free(msg); 8565 return -ENOBUFS; 8566} 8567 8568 8569static int i802_set_rts(void *priv, int rts) 8570{ 8571 struct i802_bss *bss = priv; 8572 struct wpa_driver_nl80211_data *drv = bss->drv; 8573 struct nl_msg *msg; 8574 int ret = -ENOBUFS; 8575 u32 val; 8576 8577 msg = nlmsg_alloc(); 8578 if (!msg) 8579 return -ENOMEM; 8580 8581 if (rts >= 2347) 8582 val = (u32) -1; 8583 else 8584 val = rts; 8585 8586 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8587 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8588 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8589 8590 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8591 msg = NULL; 8592 if (!ret) 8593 return 0; 8594nla_put_failure: 8595 nlmsg_free(msg); 8596 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8597 "%d (%s)", rts, ret, strerror(-ret)); 8598 return ret; 8599} 8600 8601 8602static int i802_set_frag(void *priv, int frag) 8603{ 8604 struct i802_bss *bss = priv; 8605 struct wpa_driver_nl80211_data *drv = bss->drv; 8606 struct nl_msg *msg; 8607 int ret = -ENOBUFS; 8608 u32 val; 8609 8610 msg = nlmsg_alloc(); 8611 if (!msg) 8612 return -ENOMEM; 8613 8614 if (frag >= 2346) 8615 val = (u32) -1; 8616 else 8617 val = frag; 8618 8619 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8620 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8622 8623 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8624 msg = NULL; 8625 if (!ret) 8626 return 0; 8627nla_put_failure: 8628 nlmsg_free(msg); 8629 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8630 "%d: %d (%s)", frag, ret, strerror(-ret)); 8631 return ret; 8632} 8633 8634 8635static int i802_flush(void *priv) 8636{ 8637 struct i802_bss *bss = priv; 8638 struct wpa_driver_nl80211_data *drv = bss->drv; 8639 struct nl_msg *msg; 8640 int res; 8641 8642 msg = nlmsg_alloc(); 8643 if (!msg) 8644 return -1; 8645 8646 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 8647 bss->ifname); 8648 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8649 8650 /* 8651 * XXX: FIX! this needs to flush all VLANs too 8652 */ 8653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8654 if_nametoindex(bss->ifname)); 8655 8656 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8657 if (res) { 8658 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8659 "(%s)", res, strerror(-res)); 8660 } 8661 return res; 8662 nla_put_failure: 8663 nlmsg_free(msg); 8664 return -ENOBUFS; 8665} 8666 8667#endif /* HOSTAPD || CONFIG_AP */ 8668 8669 8670static int get_sta_handler(struct nl_msg *msg, void *arg) 8671{ 8672 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8673 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8674 struct hostap_sta_driver_data *data = arg; 8675 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8676 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8677 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8678 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8679 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8680 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8681 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8682 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8683 }; 8684 8685 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8686 genlmsg_attrlen(gnlh, 0), NULL); 8687 8688 /* 8689 * TODO: validate the interface and mac address! 8690 * Otherwise, there's a race condition as soon as 8691 * the kernel starts sending station notifications. 8692 */ 8693 8694 if (!tb[NL80211_ATTR_STA_INFO]) { 8695 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8696 return NL_SKIP; 8697 } 8698 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8699 tb[NL80211_ATTR_STA_INFO], 8700 stats_policy)) { 8701 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8702 return NL_SKIP; 8703 } 8704 8705 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8706 data->inactive_msec = 8707 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8708 if (stats[NL80211_STA_INFO_RX_BYTES]) 8709 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8710 if (stats[NL80211_STA_INFO_TX_BYTES]) 8711 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8712 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8713 data->rx_packets = 8714 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8715 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8716 data->tx_packets = 8717 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8718 if (stats[NL80211_STA_INFO_TX_FAILED]) 8719 data->tx_retry_failed = 8720 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8721 8722 return NL_SKIP; 8723} 8724 8725static int i802_read_sta_data(struct i802_bss *bss, 8726 struct hostap_sta_driver_data *data, 8727 const u8 *addr) 8728{ 8729 struct wpa_driver_nl80211_data *drv = bss->drv; 8730 struct nl_msg *msg; 8731 8732 os_memset(data, 0, sizeof(*data)); 8733 msg = nlmsg_alloc(); 8734 if (!msg) 8735 return -ENOMEM; 8736 8737 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8738 8739 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8740 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8741 8742 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8743 nla_put_failure: 8744 nlmsg_free(msg); 8745 return -ENOBUFS; 8746} 8747 8748 8749#if defined(HOSTAPD) || defined(CONFIG_AP) 8750 8751static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8752 int cw_min, int cw_max, int burst_time) 8753{ 8754 struct i802_bss *bss = priv; 8755 struct wpa_driver_nl80211_data *drv = bss->drv; 8756 struct nl_msg *msg; 8757 struct nlattr *txq, *params; 8758 8759 msg = nlmsg_alloc(); 8760 if (!msg) 8761 return -1; 8762 8763 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8764 8765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8766 8767 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8768 if (!txq) 8769 goto nla_put_failure; 8770 8771 /* We are only sending parameters for a single TXQ at a time */ 8772 params = nla_nest_start(msg, 1); 8773 if (!params) 8774 goto nla_put_failure; 8775 8776 switch (queue) { 8777 case 0: 8778 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8779 break; 8780 case 1: 8781 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8782 break; 8783 case 2: 8784 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8785 break; 8786 case 3: 8787 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8788 break; 8789 } 8790 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8791 * 32 usec, so need to convert the value here. */ 8792 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8793 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8794 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8795 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8796 8797 nla_nest_end(msg, params); 8798 8799 nla_nest_end(msg, txq); 8800 8801 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8802 return 0; 8803 msg = NULL; 8804 nla_put_failure: 8805 nlmsg_free(msg); 8806 return -1; 8807} 8808 8809 8810static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8811 const char *ifname, int vlan_id) 8812{ 8813 struct wpa_driver_nl80211_data *drv = bss->drv; 8814 struct nl_msg *msg; 8815 int ret = -ENOBUFS; 8816 8817 msg = nlmsg_alloc(); 8818 if (!msg) 8819 return -ENOMEM; 8820 8821 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8822 8823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8824 if_nametoindex(bss->ifname)); 8825 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8826 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8827 if_nametoindex(ifname)); 8828 8829 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8830 msg = NULL; 8831 if (ret < 0) { 8832 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8833 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8834 MAC2STR(addr), ifname, vlan_id, ret, 8835 strerror(-ret)); 8836 } 8837 nla_put_failure: 8838 nlmsg_free(msg); 8839 return ret; 8840} 8841 8842 8843static int i802_get_inact_sec(void *priv, const u8 *addr) 8844{ 8845 struct hostap_sta_driver_data data; 8846 int ret; 8847 8848 data.inactive_msec = (unsigned long) -1; 8849 ret = i802_read_sta_data(priv, &data, addr); 8850 if (ret || data.inactive_msec == (unsigned long) -1) 8851 return -1; 8852 return data.inactive_msec / 1000; 8853} 8854 8855 8856static int i802_sta_clear_stats(void *priv, const u8 *addr) 8857{ 8858#if 0 8859 /* TODO */ 8860#endif 8861 return 0; 8862} 8863 8864 8865static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8866 int reason) 8867{ 8868 struct i802_bss *bss = priv; 8869 struct wpa_driver_nl80211_data *drv = bss->drv; 8870 struct ieee80211_mgmt mgmt; 8871 8872 if (drv->device_ap_sme) 8873 return wpa_driver_nl80211_sta_remove(bss, addr); 8874 8875 memset(&mgmt, 0, sizeof(mgmt)); 8876 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8877 WLAN_FC_STYPE_DEAUTH); 8878 memcpy(mgmt.da, addr, ETH_ALEN); 8879 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8880 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8881 mgmt.u.deauth.reason_code = host_to_le16(reason); 8882 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8883 IEEE80211_HDRLEN + 8884 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8885 0); 8886} 8887 8888 8889static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8890 int reason) 8891{ 8892 struct i802_bss *bss = priv; 8893 struct wpa_driver_nl80211_data *drv = bss->drv; 8894 struct ieee80211_mgmt mgmt; 8895 8896 if (drv->device_ap_sme) 8897 return wpa_driver_nl80211_sta_remove(bss, addr); 8898 8899 memset(&mgmt, 0, sizeof(mgmt)); 8900 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8901 WLAN_FC_STYPE_DISASSOC); 8902 memcpy(mgmt.da, addr, ETH_ALEN); 8903 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8904 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8905 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8906 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8907 IEEE80211_HDRLEN + 8908 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8909 0); 8910} 8911 8912#endif /* HOSTAPD || CONFIG_AP */ 8913 8914#ifdef HOSTAPD 8915 8916static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8917{ 8918 int i; 8919 int *old; 8920 8921 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8922 ifidx); 8923 for (i = 0; i < drv->num_if_indices; i++) { 8924 if (drv->if_indices[i] == 0) { 8925 drv->if_indices[i] = ifidx; 8926 return; 8927 } 8928 } 8929 8930 if (drv->if_indices != drv->default_if_indices) 8931 old = drv->if_indices; 8932 else 8933 old = NULL; 8934 8935 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8936 sizeof(int)); 8937 if (!drv->if_indices) { 8938 if (!old) 8939 drv->if_indices = drv->default_if_indices; 8940 else 8941 drv->if_indices = old; 8942 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8943 "interfaces"); 8944 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8945 return; 8946 } else if (!old) 8947 os_memcpy(drv->if_indices, drv->default_if_indices, 8948 sizeof(drv->default_if_indices)); 8949 drv->if_indices[drv->num_if_indices] = ifidx; 8950 drv->num_if_indices++; 8951} 8952 8953 8954static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8955{ 8956 int i; 8957 8958 for (i = 0; i < drv->num_if_indices; i++) { 8959 if (drv->if_indices[i] == ifidx) { 8960 drv->if_indices[i] = 0; 8961 break; 8962 } 8963 } 8964} 8965 8966 8967static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8968{ 8969 int i; 8970 8971 for (i = 0; i < drv->num_if_indices; i++) 8972 if (drv->if_indices[i] == ifidx) 8973 return 1; 8974 8975 return 0; 8976} 8977 8978 8979static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8980 const char *bridge_ifname, char *ifname_wds) 8981{ 8982 struct i802_bss *bss = priv; 8983 struct wpa_driver_nl80211_data *drv = bss->drv; 8984 char name[IFNAMSIZ + 1]; 8985 8986 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8987 if (ifname_wds) 8988 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8989 8990 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8991 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8992 if (val) { 8993 if (!if_nametoindex(name)) { 8994 if (nl80211_create_iface(drv, name, 8995 NL80211_IFTYPE_AP_VLAN, 8996 bss->addr, 1, NULL, NULL) < 0) 8997 return -1; 8998 if (bridge_ifname && 8999 linux_br_add_if(drv->global->ioctl_sock, 9000 bridge_ifname, name) < 0) 9001 return -1; 9002 } 9003 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 9004 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 9005 "interface %s up", name); 9006 } 9007 return i802_set_sta_vlan(priv, addr, name, 0); 9008 } else { 9009 if (bridge_ifname) 9010 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 9011 name); 9012 9013 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 9014 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 9015 name); 9016 } 9017} 9018 9019 9020static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 9021{ 9022 struct wpa_driver_nl80211_data *drv = eloop_ctx; 9023 struct sockaddr_ll lladdr; 9024 unsigned char buf[3000]; 9025 int len; 9026 socklen_t fromlen = sizeof(lladdr); 9027 9028 len = recvfrom(sock, buf, sizeof(buf), 0, 9029 (struct sockaddr *)&lladdr, &fromlen); 9030 if (len < 0) { 9031 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 9032 strerror(errno)); 9033 return; 9034 } 9035 9036 if (have_ifidx(drv, lladdr.sll_ifindex)) 9037 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 9038} 9039 9040 9041static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 9042 struct i802_bss *bss, 9043 const char *brname, const char *ifname) 9044{ 9045 int ifindex; 9046 char in_br[IFNAMSIZ]; 9047 9048 os_strlcpy(bss->brname, brname, IFNAMSIZ); 9049 ifindex = if_nametoindex(brname); 9050 if (ifindex == 0) { 9051 /* 9052 * Bridge was configured, but the bridge device does 9053 * not exist. Try to add it now. 9054 */ 9055 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 9056 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 9057 "bridge interface %s: %s", 9058 brname, strerror(errno)); 9059 return -1; 9060 } 9061 bss->added_bridge = 1; 9062 add_ifidx(drv, if_nametoindex(brname)); 9063 } 9064 9065 if (linux_br_get(in_br, ifname) == 0) { 9066 if (os_strcmp(in_br, brname) == 0) 9067 return 0; /* already in the bridge */ 9068 9069 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 9070 "bridge %s", ifname, in_br); 9071 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 9072 0) { 9073 wpa_printf(MSG_ERROR, "nl80211: Failed to " 9074 "remove interface %s from bridge " 9075 "%s: %s", 9076 ifname, brname, strerror(errno)); 9077 return -1; 9078 } 9079 } 9080 9081 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 9082 ifname, brname); 9083 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 9084 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 9085 "into bridge %s: %s", 9086 ifname, brname, strerror(errno)); 9087 return -1; 9088 } 9089 bss->added_if_into_bridge = 1; 9090 9091 return 0; 9092} 9093 9094 9095static void *i802_init(struct hostapd_data *hapd, 9096 struct wpa_init_params *params) 9097{ 9098 struct wpa_driver_nl80211_data *drv; 9099 struct i802_bss *bss; 9100 size_t i; 9101 char brname[IFNAMSIZ]; 9102 int ifindex, br_ifindex; 9103 int br_added = 0; 9104 9105 bss = wpa_driver_nl80211_init(hapd, params->ifname, 9106 params->global_priv); 9107 if (bss == NULL) 9108 return NULL; 9109 9110 drv = bss->drv; 9111 drv->nlmode = NL80211_IFTYPE_AP; 9112 drv->eapol_sock = -1; 9113 9114 if (linux_br_get(brname, params->ifname) == 0) { 9115 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 9116 params->ifname, brname); 9117 br_ifindex = if_nametoindex(brname); 9118 } else { 9119 brname[0] = '\0'; 9120 br_ifindex = 0; 9121 } 9122 9123 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 9124 drv->if_indices = drv->default_if_indices; 9125 for (i = 0; i < params->num_bridge; i++) { 9126 if (params->bridge[i]) { 9127 ifindex = if_nametoindex(params->bridge[i]); 9128 if (ifindex) 9129 add_ifidx(drv, ifindex); 9130 if (ifindex == br_ifindex) 9131 br_added = 1; 9132 } 9133 } 9134 if (!br_added && br_ifindex && 9135 (params->num_bridge == 0 || !params->bridge[0])) 9136 add_ifidx(drv, br_ifindex); 9137 9138 /* start listening for EAPOL on the default AP interface */ 9139 add_ifidx(drv, drv->ifindex); 9140 9141 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 9142 goto failed; 9143 9144 if (params->bssid) { 9145 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9146 params->bssid)) 9147 goto failed; 9148 } 9149 9150 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 9151 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 9152 "into AP mode", bss->ifname); 9153 goto failed; 9154 } 9155 9156 if (params->num_bridge && params->bridge[0] && 9157 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 9158 goto failed; 9159 9160 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 9161 goto failed; 9162 9163 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 9164 if (drv->eapol_sock < 0) { 9165 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 9166 strerror(errno)); 9167 goto failed; 9168 } 9169 9170 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 9171 { 9172 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 9173 goto failed; 9174 } 9175 9176 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 9177 params->own_addr)) 9178 goto failed; 9179 9180 memcpy(bss->addr, params->own_addr, ETH_ALEN); 9181 9182 return bss; 9183 9184failed: 9185 wpa_driver_nl80211_deinit(bss); 9186 return NULL; 9187} 9188 9189 9190static void i802_deinit(void *priv) 9191{ 9192 struct i802_bss *bss = priv; 9193 wpa_driver_nl80211_deinit(bss); 9194} 9195 9196#endif /* HOSTAPD */ 9197 9198 9199static enum nl80211_iftype wpa_driver_nl80211_if_type( 9200 enum wpa_driver_if_type type) 9201{ 9202 switch (type) { 9203 case WPA_IF_STATION: 9204 return NL80211_IFTYPE_STATION; 9205 case WPA_IF_P2P_CLIENT: 9206 case WPA_IF_P2P_GROUP: 9207 return NL80211_IFTYPE_P2P_CLIENT; 9208 case WPA_IF_AP_VLAN: 9209 return NL80211_IFTYPE_AP_VLAN; 9210 case WPA_IF_AP_BSS: 9211 return NL80211_IFTYPE_AP; 9212 case WPA_IF_P2P_GO: 9213 return NL80211_IFTYPE_P2P_GO; 9214 case WPA_IF_P2P_DEVICE: 9215 return NL80211_IFTYPE_P2P_DEVICE; 9216 } 9217 return -1; 9218} 9219 9220 9221#ifdef CONFIG_P2P 9222 9223static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 9224{ 9225 struct wpa_driver_nl80211_data *drv; 9226 dl_list_for_each(drv, &global->interfaces, 9227 struct wpa_driver_nl80211_data, list) { 9228 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 9229 return 1; 9230 } 9231 return 0; 9232} 9233 9234 9235static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 9236 u8 *new_addr) 9237{ 9238 unsigned int idx; 9239 9240 if (!drv->global) 9241 return -1; 9242 9243 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 9244 for (idx = 0; idx < 64; idx++) { 9245 new_addr[0] = drv->first_bss.addr[0] | 0x02; 9246 new_addr[0] ^= idx << 2; 9247 if (!nl80211_addr_in_use(drv->global, new_addr)) 9248 break; 9249 } 9250 if (idx == 64) 9251 return -1; 9252 9253 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9254 MACSTR, MAC2STR(new_addr)); 9255 9256 return 0; 9257} 9258 9259#endif /* CONFIG_P2P */ 9260 9261 9262struct wdev_info { 9263 u64 wdev_id; 9264 int wdev_id_set; 9265 u8 macaddr[ETH_ALEN]; 9266}; 9267 9268static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9269{ 9270 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9271 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9272 struct wdev_info *wi = arg; 9273 9274 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9275 genlmsg_attrlen(gnlh, 0), NULL); 9276 if (tb[NL80211_ATTR_WDEV]) { 9277 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9278 wi->wdev_id_set = 1; 9279 } 9280 9281 if (tb[NL80211_ATTR_MAC]) 9282 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9283 ETH_ALEN); 9284 9285 return NL_SKIP; 9286} 9287 9288 9289static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9290 const char *ifname, const u8 *addr, 9291 void *bss_ctx, void **drv_priv, 9292 char *force_ifname, u8 *if_addr, 9293 const char *bridge) 9294{ 9295 enum nl80211_iftype nlmode; 9296 struct i802_bss *bss = priv; 9297 struct wpa_driver_nl80211_data *drv = bss->drv; 9298 int ifidx; 9299 9300 if (addr) 9301 os_memcpy(if_addr, addr, ETH_ALEN); 9302 nlmode = wpa_driver_nl80211_if_type(type); 9303 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9304 struct wdev_info p2pdev_info; 9305 9306 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9307 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9308 0, nl80211_wdev_handler, 9309 &p2pdev_info); 9310 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9311 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9312 ifname); 9313 return -1; 9314 } 9315 9316 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9317 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9318 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9319 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9320 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9321 ifname, 9322 (long long unsigned int) p2pdev_info.wdev_id); 9323 } else { 9324 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9325 0, NULL, NULL); 9326 if (ifidx < 0) { 9327 return -1; 9328 } 9329 } 9330 9331 if (!addr) { 9332 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9333 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9334 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9335 bss->ifname, if_addr) < 0) { 9336 nl80211_remove_iface(drv, ifidx); 9337 return -1; 9338 } 9339 } 9340 9341#ifdef CONFIG_P2P 9342 if (!addr && 9343 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9344 type == WPA_IF_P2P_GO)) { 9345 /* Enforce unique P2P Interface Address */ 9346 u8 new_addr[ETH_ALEN]; 9347 9348 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9349 new_addr) < 0) { 9350 nl80211_remove_iface(drv, ifidx); 9351 return -1; 9352 } 9353 if (nl80211_addr_in_use(drv->global, new_addr)) { 9354 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9355 "for P2P group interface"); 9356 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9357 nl80211_remove_iface(drv, ifidx); 9358 return -1; 9359 } 9360 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9361 new_addr) < 0) { 9362 nl80211_remove_iface(drv, ifidx); 9363 return -1; 9364 } 9365 } 9366 os_memcpy(if_addr, new_addr, ETH_ALEN); 9367 } 9368#endif /* CONFIG_P2P */ 9369 9370#ifdef HOSTAPD 9371 if (type == WPA_IF_AP_BSS) { 9372 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 9373 if (new_bss == NULL) { 9374 nl80211_remove_iface(drv, ifidx); 9375 return -1; 9376 } 9377 9378 if (bridge && 9379 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9380 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9381 "interface %s to a bridge %s", 9382 ifname, bridge); 9383 nl80211_remove_iface(drv, ifidx); 9384 os_free(new_bss); 9385 return -1; 9386 } 9387 9388 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9389 { 9390 nl80211_remove_iface(drv, ifidx); 9391 os_free(new_bss); 9392 return -1; 9393 } 9394 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9395 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9396 new_bss->ifindex = ifidx; 9397 new_bss->drv = drv; 9398 new_bss->next = drv->first_bss.next; 9399 new_bss->freq = drv->first_bss.freq; 9400 new_bss->ctx = bss_ctx; 9401 drv->first_bss.next = new_bss; 9402 if (drv_priv) 9403 *drv_priv = new_bss; 9404 nl80211_init_bss(new_bss); 9405 9406 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9407 if (nl80211_setup_ap(new_bss)) 9408 return -1; 9409 } 9410#endif /* HOSTAPD */ 9411 9412 if (drv->global) 9413 drv->global->if_add_ifindex = ifidx; 9414 9415 return 0; 9416} 9417 9418 9419static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9420 enum wpa_driver_if_type type, 9421 const char *ifname) 9422{ 9423 struct wpa_driver_nl80211_data *drv = bss->drv; 9424 int ifindex = if_nametoindex(ifname); 9425 9426 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9427 __func__, type, ifname, ifindex); 9428 if (ifindex > 0) 9429 nl80211_remove_iface(drv, ifindex); 9430 9431#ifdef HOSTAPD 9432 if (type != WPA_IF_AP_BSS) 9433 return 0; 9434 9435 if (bss->added_if_into_bridge) { 9436 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9437 bss->ifname) < 0) 9438 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9439 "interface %s from bridge %s: %s", 9440 bss->ifname, bss->brname, strerror(errno)); 9441 } 9442 if (bss->added_bridge) { 9443 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9444 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9445 "bridge %s: %s", 9446 bss->brname, strerror(errno)); 9447 } 9448 9449 if (bss != &drv->first_bss) { 9450 struct i802_bss *tbss; 9451 9452 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9453 if (tbss->next == bss) { 9454 tbss->next = bss->next; 9455 /* Unsubscribe management frames */ 9456 nl80211_teardown_ap(bss); 9457 nl80211_destroy_bss(bss); 9458 os_free(bss); 9459 bss = NULL; 9460 break; 9461 } 9462 } 9463 if (bss) 9464 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9465 "BSS %p in the list", __func__, bss); 9466 } 9467#endif /* HOSTAPD */ 9468 9469 return 0; 9470} 9471 9472 9473static int cookie_handler(struct nl_msg *msg, void *arg) 9474{ 9475 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9476 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9477 u64 *cookie = arg; 9478 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9479 genlmsg_attrlen(gnlh, 0), NULL); 9480 if (tb[NL80211_ATTR_COOKIE]) 9481 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9482 return NL_SKIP; 9483} 9484 9485 9486static int nl80211_send_frame_cmd(struct i802_bss *bss, 9487 unsigned int freq, unsigned int wait, 9488 const u8 *buf, size_t buf_len, 9489 u64 *cookie_out, int no_cck, int no_ack, 9490 int offchanok) 9491{ 9492 struct wpa_driver_nl80211_data *drv = bss->drv; 9493 struct nl_msg *msg; 9494 u64 cookie; 9495 int ret = -1; 9496 9497 msg = nlmsg_alloc(); 9498 if (!msg) 9499 return -1; 9500 9501 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9502 "no_ack=%d offchanok=%d", 9503 freq, wait, no_cck, no_ack, offchanok); 9504 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9505 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9506 9507 if (nl80211_set_iface_id(msg, bss) < 0) 9508 goto nla_put_failure; 9509 if (freq) 9510 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9511 if (wait) 9512 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9513 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9514 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9515 if (no_cck) 9516 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9517 if (no_ack) 9518 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9519 9520 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9521 9522 cookie = 0; 9523 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9524 msg = NULL; 9525 if (ret) { 9526 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9527 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9528 freq, wait); 9529 goto nla_put_failure; 9530 } 9531 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9532 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9533 (long long unsigned int) cookie); 9534 9535 if (cookie_out) 9536 *cookie_out = no_ack ? (u64) -1 : cookie; 9537 9538nla_put_failure: 9539 nlmsg_free(msg); 9540 return ret; 9541} 9542 9543 9544static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9545 unsigned int freq, 9546 unsigned int wait_time, 9547 const u8 *dst, const u8 *src, 9548 const u8 *bssid, 9549 const u8 *data, size_t data_len, 9550 int no_cck) 9551{ 9552 struct wpa_driver_nl80211_data *drv = bss->drv; 9553 int ret = -1; 9554 u8 *buf; 9555 struct ieee80211_hdr *hdr; 9556 9557 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9558 "freq=%u MHz wait=%d ms no_cck=%d)", 9559 drv->ifindex, freq, wait_time, no_cck); 9560 9561 buf = os_zalloc(24 + data_len); 9562 if (buf == NULL) 9563 return ret; 9564 os_memcpy(buf + 24, data, data_len); 9565 hdr = (struct ieee80211_hdr *) buf; 9566 hdr->frame_control = 9567 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9568 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9569 os_memcpy(hdr->addr2, src, ETH_ALEN); 9570 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9571 9572 if (is_ap_interface(drv->nlmode) && 9573 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 9574 (int) freq == bss->freq || drv->device_ap_sme || 9575 !drv->use_monitor)) 9576 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9577 0, freq, no_cck, 1, 9578 wait_time); 9579 else 9580 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9581 24 + data_len, 9582 &drv->send_action_cookie, 9583 no_cck, 0, 1); 9584 9585 os_free(buf); 9586 return ret; 9587} 9588 9589 9590static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9591{ 9592 struct i802_bss *bss = priv; 9593 struct wpa_driver_nl80211_data *drv = bss->drv; 9594 struct nl_msg *msg; 9595 int ret; 9596 9597 msg = nlmsg_alloc(); 9598 if (!msg) 9599 return; 9600 9601 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9602 (long long unsigned int) drv->send_action_cookie); 9603 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9604 9605 if (nl80211_set_iface_id(msg, bss) < 0) 9606 goto nla_put_failure; 9607 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9608 9609 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9610 msg = NULL; 9611 if (ret) 9612 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9613 "(%s)", ret, strerror(-ret)); 9614 9615 nla_put_failure: 9616 nlmsg_free(msg); 9617} 9618 9619 9620static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9621 unsigned int duration) 9622{ 9623 struct i802_bss *bss = priv; 9624 struct wpa_driver_nl80211_data *drv = bss->drv; 9625 struct nl_msg *msg; 9626 int ret; 9627 u64 cookie; 9628 9629 msg = nlmsg_alloc(); 9630 if (!msg) 9631 return -1; 9632 9633 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9634 9635 if (nl80211_set_iface_id(msg, bss) < 0) 9636 goto nla_put_failure; 9637 9638 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9639 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9640 9641 cookie = 0; 9642 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9643 msg = NULL; 9644 if (ret == 0) { 9645 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9646 "0x%llx for freq=%u MHz duration=%u", 9647 (long long unsigned int) cookie, freq, duration); 9648 drv->remain_on_chan_cookie = cookie; 9649 drv->pending_remain_on_chan = 1; 9650 return 0; 9651 } 9652 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9653 "(freq=%d duration=%u): %d (%s)", 9654 freq, duration, ret, strerror(-ret)); 9655nla_put_failure: 9656 nlmsg_free(msg); 9657 return -1; 9658} 9659 9660 9661static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9662{ 9663 struct i802_bss *bss = priv; 9664 struct wpa_driver_nl80211_data *drv = bss->drv; 9665 struct nl_msg *msg; 9666 int ret; 9667 9668 if (!drv->pending_remain_on_chan) { 9669 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9670 "to cancel"); 9671 return -1; 9672 } 9673 9674 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9675 "0x%llx", 9676 (long long unsigned int) drv->remain_on_chan_cookie); 9677 9678 msg = nlmsg_alloc(); 9679 if (!msg) 9680 return -1; 9681 9682 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9683 9684 if (nl80211_set_iface_id(msg, bss) < 0) 9685 goto nla_put_failure; 9686 9687 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9688 9689 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9690 msg = NULL; 9691 if (ret == 0) 9692 return 0; 9693 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9694 "%d (%s)", ret, strerror(-ret)); 9695nla_put_failure: 9696 nlmsg_free(msg); 9697 return -1; 9698} 9699 9700 9701static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9702{ 9703 struct wpa_driver_nl80211_data *drv = bss->drv; 9704 9705 if (!report) { 9706 if (bss->nl_preq && drv->device_ap_sme && 9707 is_ap_interface(drv->nlmode)) { 9708 /* 9709 * Do not disable Probe Request reporting that was 9710 * enabled in nl80211_setup_ap(). 9711 */ 9712 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9713 "Probe Request reporting nl_preq=%p while " 9714 "in AP mode", bss->nl_preq); 9715 } else if (bss->nl_preq) { 9716 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9717 "reporting nl_preq=%p", bss->nl_preq); 9718 nl80211_destroy_eloop_handle(&bss->nl_preq); 9719 } 9720 return 0; 9721 } 9722 9723 if (bss->nl_preq) { 9724 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9725 "already on! nl_preq=%p", bss->nl_preq); 9726 return 0; 9727 } 9728 9729 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9730 if (bss->nl_preq == NULL) 9731 return -1; 9732 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9733 "reporting nl_preq=%p", bss->nl_preq); 9734 9735 if (nl80211_register_frame(bss, bss->nl_preq, 9736 (WLAN_FC_TYPE_MGMT << 2) | 9737 (WLAN_FC_STYPE_PROBE_REQ << 4), 9738 NULL, 0) < 0) 9739 goto out_err; 9740 9741 nl80211_register_eloop_read(&bss->nl_preq, 9742 wpa_driver_nl80211_event_receive, 9743 bss->nl_cb); 9744 9745 return 0; 9746 9747 out_err: 9748 nl_destroy_handles(&bss->nl_preq); 9749 return -1; 9750} 9751 9752 9753static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9754 int ifindex, int disabled) 9755{ 9756 struct nl_msg *msg; 9757 struct nlattr *bands, *band; 9758 int ret; 9759 9760 msg = nlmsg_alloc(); 9761 if (!msg) 9762 return -1; 9763 9764 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9766 9767 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9768 if (!bands) 9769 goto nla_put_failure; 9770 9771 /* 9772 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9773 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9774 * rates. All 5 GHz rates are left enabled. 9775 */ 9776 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9777 if (!band) 9778 goto nla_put_failure; 9779 if (disabled) { 9780 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9781 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9782 } 9783 nla_nest_end(msg, band); 9784 9785 nla_nest_end(msg, bands); 9786 9787 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9788 msg = NULL; 9789 if (ret) { 9790 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9791 "(%s)", ret, strerror(-ret)); 9792 } else 9793 drv->disabled_11b_rates = disabled; 9794 9795 return ret; 9796 9797nla_put_failure: 9798 nlmsg_free(msg); 9799 return -1; 9800} 9801 9802 9803static int wpa_driver_nl80211_deinit_ap(void *priv) 9804{ 9805 struct i802_bss *bss = priv; 9806 struct wpa_driver_nl80211_data *drv = bss->drv; 9807 if (!is_ap_interface(drv->nlmode)) 9808 return -1; 9809 wpa_driver_nl80211_del_beacon(drv); 9810 9811 /* 9812 * If the P2P GO interface was dynamically added, then it is 9813 * possible that the interface change to station is not possible. 9814 */ 9815 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 9816 return 0; 9817 9818 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9819} 9820 9821 9822static int wpa_driver_nl80211_stop_ap(void *priv) 9823{ 9824 struct i802_bss *bss = priv; 9825 struct wpa_driver_nl80211_data *drv = bss->drv; 9826 if (!is_ap_interface(drv->nlmode)) 9827 return -1; 9828 wpa_driver_nl80211_del_beacon(drv); 9829 bss->beacon_set = 0; 9830 return 0; 9831} 9832 9833 9834static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9835{ 9836 struct i802_bss *bss = priv; 9837 struct wpa_driver_nl80211_data *drv = bss->drv; 9838 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9839 return -1; 9840 9841 /* 9842 * If the P2P Client interface was dynamically added, then it is 9843 * possible that the interface change to station is not possible. 9844 */ 9845 if (bss->if_dynamic) 9846 return 0; 9847 9848 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9849} 9850 9851 9852static void wpa_driver_nl80211_resume(void *priv) 9853{ 9854 struct i802_bss *bss = priv; 9855 9856 if (i802_set_iface_flags(bss, 1)) 9857 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9858} 9859 9860 9861static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9862 const u8 *ies, size_t ies_len) 9863{ 9864 struct i802_bss *bss = priv; 9865 struct wpa_driver_nl80211_data *drv = bss->drv; 9866 int ret; 9867 u8 *data, *pos; 9868 size_t data_len; 9869 const u8 *own_addr = bss->addr; 9870 9871 if (action != 1) { 9872 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9873 "action %d", action); 9874 return -1; 9875 } 9876 9877 /* 9878 * Action frame payload: 9879 * Category[1] = 6 (Fast BSS Transition) 9880 * Action[1] = 1 (Fast BSS Transition Request) 9881 * STA Address 9882 * Target AP Address 9883 * FT IEs 9884 */ 9885 9886 data_len = 2 + 2 * ETH_ALEN + ies_len; 9887 data = os_malloc(data_len); 9888 if (data == NULL) 9889 return -1; 9890 pos = data; 9891 *pos++ = 0x06; /* FT Action category */ 9892 *pos++ = action; 9893 os_memcpy(pos, own_addr, ETH_ALEN); 9894 pos += ETH_ALEN; 9895 os_memcpy(pos, target_ap, ETH_ALEN); 9896 pos += ETH_ALEN; 9897 os_memcpy(pos, ies, ies_len); 9898 9899 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9900 drv->bssid, own_addr, drv->bssid, 9901 data, data_len, 0); 9902 os_free(data); 9903 9904 return ret; 9905} 9906 9907 9908static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9909{ 9910 struct i802_bss *bss = priv; 9911 struct wpa_driver_nl80211_data *drv = bss->drv; 9912 struct nl_msg *msg; 9913 struct nlattr *cqm; 9914 int ret = -1; 9915 9916 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9917 "hysteresis=%d", threshold, hysteresis); 9918 9919 msg = nlmsg_alloc(); 9920 if (!msg) 9921 return -1; 9922 9923 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9924 9925 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9926 9927 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9928 if (cqm == NULL) 9929 goto nla_put_failure; 9930 9931 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9932 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9933 nla_nest_end(msg, cqm); 9934 9935 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9936 msg = NULL; 9937 9938nla_put_failure: 9939 nlmsg_free(msg); 9940 return ret; 9941} 9942 9943 9944/* Converts nl80211_chan_width to a common format */ 9945static enum chan_width convert2width(int width) 9946{ 9947 switch (width) { 9948 case NL80211_CHAN_WIDTH_20_NOHT: 9949 return CHAN_WIDTH_20_NOHT; 9950 case NL80211_CHAN_WIDTH_20: 9951 return CHAN_WIDTH_20; 9952 case NL80211_CHAN_WIDTH_40: 9953 return CHAN_WIDTH_40; 9954 case NL80211_CHAN_WIDTH_80: 9955 return CHAN_WIDTH_80; 9956 case NL80211_CHAN_WIDTH_80P80: 9957 return CHAN_WIDTH_80P80; 9958 case NL80211_CHAN_WIDTH_160: 9959 return CHAN_WIDTH_160; 9960 } 9961 return CHAN_WIDTH_UNKNOWN; 9962} 9963 9964 9965static int get_channel_width(struct nl_msg *msg, void *arg) 9966{ 9967 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9968 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9969 struct wpa_signal_info *sig_change = arg; 9970 9971 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9972 genlmsg_attrlen(gnlh, 0), NULL); 9973 9974 sig_change->center_frq1 = -1; 9975 sig_change->center_frq2 = -1; 9976 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9977 9978 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9979 sig_change->chanwidth = convert2width( 9980 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9981 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9982 sig_change->center_frq1 = 9983 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9984 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9985 sig_change->center_frq2 = 9986 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9987 } 9988 9989 return NL_SKIP; 9990} 9991 9992 9993static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9994 struct wpa_signal_info *sig) 9995{ 9996 struct nl_msg *msg; 9997 9998 msg = nlmsg_alloc(); 9999 if (!msg) 10000 return -ENOMEM; 10001 10002 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 10003 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10004 10005 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 10006 10007nla_put_failure: 10008 nlmsg_free(msg); 10009 return -ENOBUFS; 10010} 10011 10012 10013static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 10014{ 10015 struct i802_bss *bss = priv; 10016 struct wpa_driver_nl80211_data *drv = bss->drv; 10017 int res; 10018 10019 os_memset(si, 0, sizeof(*si)); 10020 res = nl80211_get_link_signal(drv, si); 10021 if (res != 0) 10022 return res; 10023 10024 res = nl80211_get_channel_width(drv, si); 10025 if (res != 0) 10026 return res; 10027 10028 return nl80211_get_link_noise(drv, si); 10029} 10030 10031 10032static int wpa_driver_nl80211_shared_freq(void *priv) 10033{ 10034 struct i802_bss *bss = priv; 10035 struct wpa_driver_nl80211_data *drv = bss->drv; 10036 struct wpa_driver_nl80211_data *driver; 10037 int freq = 0; 10038 10039 /* 10040 * If the same PHY is in connected state with some other interface, 10041 * then retrieve the assoc freq. 10042 */ 10043 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 10044 drv->phyname); 10045 10046 dl_list_for_each(driver, &drv->global->interfaces, 10047 struct wpa_driver_nl80211_data, list) { 10048 if (drv == driver || 10049 os_strcmp(drv->phyname, driver->phyname) != 0 || 10050#ifdef ANDROID_P2P 10051 (!driver->associated && !is_ap_interface(driver->nlmode))) 10052#else 10053 !driver->associated) 10054#endif 10055 continue; 10056 10057 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 10058 MACSTR, 10059 driver->phyname, driver->first_bss.ifname, 10060 MAC2STR(driver->first_bss.addr)); 10061 if (is_ap_interface(driver->nlmode)) 10062 freq = driver->first_bss.freq; 10063 else 10064 freq = nl80211_get_assoc_freq(driver); 10065 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 10066 drv->phyname, freq); 10067 } 10068 10069 if (!freq) 10070 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 10071 "PHY (%s) in associated state", drv->phyname); 10072 10073 return freq; 10074} 10075 10076 10077static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 10078 int encrypt) 10079{ 10080 struct i802_bss *bss = priv; 10081 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 10082 0, 0, 0, 0); 10083} 10084 10085 10086static int nl80211_set_param(void *priv, const char *param) 10087{ 10088 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 10089 if (param == NULL) 10090 return 0; 10091 10092#ifdef CONFIG_P2P 10093 if (os_strstr(param, "use_p2p_group_interface=1")) { 10094 struct i802_bss *bss = priv; 10095 struct wpa_driver_nl80211_data *drv = bss->drv; 10096 10097 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 10098 "interface"); 10099 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 10100 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 10101 } 10102 10103 if (os_strstr(param, "p2p_device=1")) { 10104 struct i802_bss *bss = priv; 10105 struct wpa_driver_nl80211_data *drv = bss->drv; 10106 drv->allow_p2p_device = 1; 10107 } 10108 10109#ifdef ANDROID_P2P 10110 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 10111 struct i802_bss *bss = priv; 10112 struct wpa_driver_nl80211_data *drv = bss->drv; 10113 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 10114 "concurrency"); 10115 drv->capa.num_multichan_concurrent = 2; 10116 } 10117#endif 10118#endif /* CONFIG_P2P */ 10119 10120 return 0; 10121} 10122 10123 10124static void * nl80211_global_init(void) 10125{ 10126 struct nl80211_global *global; 10127 struct netlink_config *cfg; 10128 10129 global = os_zalloc(sizeof(*global)); 10130 if (global == NULL) 10131 return NULL; 10132 global->ioctl_sock = -1; 10133 dl_list_init(&global->interfaces); 10134 global->if_add_ifindex = -1; 10135 10136 cfg = os_zalloc(sizeof(*cfg)); 10137 if (cfg == NULL) 10138 goto err; 10139 10140 cfg->ctx = global; 10141 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 10142 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 10143 global->netlink = netlink_init(cfg); 10144 if (global->netlink == NULL) { 10145 os_free(cfg); 10146 goto err; 10147 } 10148 10149 if (wpa_driver_nl80211_init_nl_global(global) < 0) 10150 goto err; 10151 10152 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 10153 if (global->ioctl_sock < 0) { 10154 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 10155 strerror(errno)); 10156 goto err; 10157 } 10158 10159 return global; 10160 10161err: 10162 nl80211_global_deinit(global); 10163 return NULL; 10164} 10165 10166 10167static void nl80211_global_deinit(void *priv) 10168{ 10169 struct nl80211_global *global = priv; 10170 if (global == NULL) 10171 return; 10172 if (!dl_list_empty(&global->interfaces)) { 10173 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 10174 "nl80211_global_deinit", 10175 dl_list_len(&global->interfaces)); 10176 } 10177 10178 if (global->netlink) 10179 netlink_deinit(global->netlink); 10180 10181 nl_destroy_handles(&global->nl); 10182 10183 if (global->nl_event) 10184 nl80211_destroy_eloop_handle(&global->nl_event); 10185 10186 nl_cb_put(global->nl_cb); 10187 10188 if (global->ioctl_sock >= 0) 10189 close(global->ioctl_sock); 10190 10191 os_free(global); 10192} 10193 10194 10195static const char * nl80211_get_radio_name(void *priv) 10196{ 10197 struct i802_bss *bss = priv; 10198 struct wpa_driver_nl80211_data *drv = bss->drv; 10199 return drv->phyname; 10200} 10201 10202 10203static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 10204 const u8 *pmkid) 10205{ 10206 struct nl_msg *msg; 10207 10208 msg = nlmsg_alloc(); 10209 if (!msg) 10210 return -ENOMEM; 10211 10212 nl80211_cmd(bss->drv, msg, 0, cmd); 10213 10214 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 10215 if (pmkid) 10216 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 10217 if (bssid) 10218 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 10219 10220 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10221 nla_put_failure: 10222 nlmsg_free(msg); 10223 return -ENOBUFS; 10224} 10225 10226 10227static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10228{ 10229 struct i802_bss *bss = priv; 10230 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 10231 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 10232} 10233 10234 10235static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 10236{ 10237 struct i802_bss *bss = priv; 10238 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 10239 MAC2STR(bssid)); 10240 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 10241} 10242 10243 10244static int nl80211_flush_pmkid(void *priv) 10245{ 10246 struct i802_bss *bss = priv; 10247 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 10248 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 10249} 10250 10251 10252static void clean_survey_results(struct survey_results *survey_results) 10253{ 10254 struct freq_survey *survey, *tmp; 10255 10256 if (dl_list_empty(&survey_results->survey_list)) 10257 return; 10258 10259 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 10260 struct freq_survey, list) { 10261 dl_list_del(&survey->list); 10262 os_free(survey); 10263 } 10264} 10265 10266 10267static void add_survey(struct nlattr **sinfo, u32 ifidx, 10268 struct dl_list *survey_list) 10269{ 10270 struct freq_survey *survey; 10271 10272 survey = os_zalloc(sizeof(struct freq_survey)); 10273 if (!survey) 10274 return; 10275 10276 survey->ifidx = ifidx; 10277 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10278 survey->filled = 0; 10279 10280 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 10281 survey->nf = (int8_t) 10282 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 10283 survey->filled |= SURVEY_HAS_NF; 10284 } 10285 10286 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 10287 survey->channel_time = 10288 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 10289 survey->filled |= SURVEY_HAS_CHAN_TIME; 10290 } 10291 10292 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 10293 survey->channel_time_busy = 10294 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 10295 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 10296 } 10297 10298 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 10299 survey->channel_time_rx = 10300 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 10301 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 10302 } 10303 10304 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 10305 survey->channel_time_tx = 10306 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 10307 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 10308 } 10309 10310 wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)", 10311 survey->freq, 10312 survey->nf, 10313 (unsigned long int) survey->channel_time, 10314 (unsigned long int) survey->channel_time_busy, 10315 (unsigned long int) survey->channel_time_tx, 10316 (unsigned long int) survey->channel_time_rx, 10317 survey->filled); 10318 10319 dl_list_add_tail(survey_list, &survey->list); 10320} 10321 10322 10323static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 10324 unsigned int freq_filter) 10325{ 10326 if (!freq_filter) 10327 return 1; 10328 10329 return freq_filter == surveyed_freq; 10330} 10331 10332 10333static int survey_handler(struct nl_msg *msg, void *arg) 10334{ 10335 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 10336 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 10337 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 10338 struct survey_results *survey_results; 10339 u32 surveyed_freq = 0; 10340 u32 ifidx; 10341 10342 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 10343 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 10344 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 10345 }; 10346 10347 survey_results = (struct survey_results *) arg; 10348 10349 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 10350 genlmsg_attrlen(gnlh, 0), NULL); 10351 10352 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 10353 10354 if (!tb[NL80211_ATTR_SURVEY_INFO]) 10355 return NL_SKIP; 10356 10357 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 10358 tb[NL80211_ATTR_SURVEY_INFO], 10359 survey_policy)) 10360 return NL_SKIP; 10361 10362 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 10363 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 10364 return NL_SKIP; 10365 } 10366 10367 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 10368 10369 if (!check_survey_ok(sinfo, surveyed_freq, 10370 survey_results->freq_filter)) 10371 return NL_SKIP; 10372 10373 if (survey_results->freq_filter && 10374 survey_results->freq_filter != surveyed_freq) { 10375 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 10376 surveyed_freq); 10377 return NL_SKIP; 10378 } 10379 10380 add_survey(sinfo, ifidx, &survey_results->survey_list); 10381 10382 return NL_SKIP; 10383} 10384 10385 10386static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 10387{ 10388 struct i802_bss *bss = priv; 10389 struct wpa_driver_nl80211_data *drv = bss->drv; 10390 struct nl_msg *msg; 10391 int err = -ENOBUFS; 10392 union wpa_event_data data; 10393 struct survey_results *survey_results; 10394 10395 os_memset(&data, 0, sizeof(data)); 10396 survey_results = &data.survey_results; 10397 10398 dl_list_init(&survey_results->survey_list); 10399 10400 msg = nlmsg_alloc(); 10401 if (!msg) 10402 goto nla_put_failure; 10403 10404 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 10405 10406 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10407 10408 if (freq) 10409 data.survey_results.freq_filter = freq; 10410 10411 do { 10412 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 10413 err = send_and_recv_msgs(drv, msg, survey_handler, 10414 survey_results); 10415 } while (err > 0); 10416 10417 if (err) { 10418 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 10419 goto out_clean; 10420 } 10421 10422 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 10423 10424out_clean: 10425 clean_survey_results(survey_results); 10426nla_put_failure: 10427 return err; 10428} 10429 10430 10431static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 10432 const u8 *replay_ctr) 10433{ 10434 struct i802_bss *bss = priv; 10435 struct wpa_driver_nl80211_data *drv = bss->drv; 10436 struct nlattr *replay_nested; 10437 struct nl_msg *msg; 10438 10439 msg = nlmsg_alloc(); 10440 if (!msg) 10441 return; 10442 10443 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10444 10445 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10446 10447 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10448 if (!replay_nested) 10449 goto nla_put_failure; 10450 10451 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10452 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10453 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10454 replay_ctr); 10455 10456 nla_nest_end(msg, replay_nested); 10457 10458 send_and_recv_msgs(drv, msg, NULL, NULL); 10459 return; 10460 nla_put_failure: 10461 nlmsg_free(msg); 10462} 10463 10464 10465static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10466 const u8 *addr, int qos) 10467{ 10468 /* send data frame to poll STA and check whether 10469 * this frame is ACKed */ 10470 struct { 10471 struct ieee80211_hdr hdr; 10472 u16 qos_ctl; 10473 } STRUCT_PACKED nulldata; 10474 size_t size; 10475 10476 /* Send data frame to poll STA and check whether this frame is ACKed */ 10477 10478 os_memset(&nulldata, 0, sizeof(nulldata)); 10479 10480 if (qos) { 10481 nulldata.hdr.frame_control = 10482 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10483 WLAN_FC_STYPE_QOS_NULL); 10484 size = sizeof(nulldata); 10485 } else { 10486 nulldata.hdr.frame_control = 10487 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10488 WLAN_FC_STYPE_NULLFUNC); 10489 size = sizeof(struct ieee80211_hdr); 10490 } 10491 10492 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10493 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10494 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10495 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10496 10497 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10498 0, 0) < 0) 10499 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10500 "send poll frame"); 10501} 10502 10503static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10504 int qos) 10505{ 10506 struct i802_bss *bss = priv; 10507 struct wpa_driver_nl80211_data *drv = bss->drv; 10508 struct nl_msg *msg; 10509 10510 if (!drv->poll_command_supported) { 10511 nl80211_send_null_frame(bss, own_addr, addr, qos); 10512 return; 10513 } 10514 10515 msg = nlmsg_alloc(); 10516 if (!msg) 10517 return; 10518 10519 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10520 10521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10522 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10523 10524 send_and_recv_msgs(drv, msg, NULL, NULL); 10525 return; 10526 nla_put_failure: 10527 nlmsg_free(msg); 10528} 10529 10530 10531static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10532{ 10533 struct nl_msg *msg; 10534 10535 msg = nlmsg_alloc(); 10536 if (!msg) 10537 return -ENOMEM; 10538 10539 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10540 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10541 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10542 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10543 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10544nla_put_failure: 10545 nlmsg_free(msg); 10546 return -ENOBUFS; 10547} 10548 10549 10550static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10551 int ctwindow) 10552{ 10553 struct i802_bss *bss = priv; 10554 10555 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10556 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10557 10558 if (opp_ps != -1 || ctwindow != -1) 10559#ifdef ANDROID_P2P 10560 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10561#else 10562 return -1; /* Not yet supported */ 10563#endif 10564 10565 if (legacy_ps == -1) 10566 return 0; 10567 if (legacy_ps != 0 && legacy_ps != 1) 10568 return -1; /* Not yet supported */ 10569 10570 return nl80211_set_power_save(bss, legacy_ps); 10571} 10572 10573 10574static int nl80211_start_radar_detection(void *priv, 10575 struct hostapd_freq_params *freq) 10576{ 10577 struct i802_bss *bss = priv; 10578 struct wpa_driver_nl80211_data *drv = bss->drv; 10579 struct nl_msg *msg; 10580 int ret; 10581 10582 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 10583 freq->freq, freq->ht_enabled, freq->vht_enabled, 10584 freq->bandwidth, freq->center_freq1, freq->center_freq2); 10585 10586 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10587 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10588 "detection"); 10589 return -1; 10590 } 10591 10592 msg = nlmsg_alloc(); 10593 if (!msg) 10594 return -1; 10595 10596 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10597 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10598 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 10599 10600 if (freq->vht_enabled) { 10601 switch (freq->bandwidth) { 10602 case 20: 10603 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10604 NL80211_CHAN_WIDTH_20); 10605 break; 10606 case 40: 10607 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10608 NL80211_CHAN_WIDTH_40); 10609 break; 10610 case 80: 10611 if (freq->center_freq2) 10612 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10613 NL80211_CHAN_WIDTH_80P80); 10614 else 10615 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10616 NL80211_CHAN_WIDTH_80); 10617 break; 10618 case 160: 10619 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 10620 NL80211_CHAN_WIDTH_160); 10621 break; 10622 default: 10623 return -1; 10624 } 10625 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 10626 if (freq->center_freq2) 10627 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 10628 freq->center_freq2); 10629 } else if (freq->ht_enabled) { 10630 switch (freq->sec_channel_offset) { 10631 case -1: 10632 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10633 NL80211_CHAN_HT40MINUS); 10634 break; 10635 case 1: 10636 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10637 NL80211_CHAN_HT40PLUS); 10638 break; 10639 default: 10640 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 10641 NL80211_CHAN_HT20); 10642 break; 10643 } 10644 } 10645 10646 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10647 if (ret == 0) 10648 return 0; 10649 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10650 "%d (%s)", ret, strerror(-ret)); 10651nla_put_failure: 10652 return -1; 10653} 10654 10655#ifdef CONFIG_TDLS 10656 10657static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10658 u8 dialog_token, u16 status_code, 10659 const u8 *buf, size_t len) 10660{ 10661 struct i802_bss *bss = priv; 10662 struct wpa_driver_nl80211_data *drv = bss->drv; 10663 struct nl_msg *msg; 10664 10665 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10666 return -EOPNOTSUPP; 10667 10668 if (!dst) 10669 return -EINVAL; 10670 10671 msg = nlmsg_alloc(); 10672 if (!msg) 10673 return -ENOMEM; 10674 10675 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10677 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10678 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10679 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10680 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10681 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10682 10683 return send_and_recv_msgs(drv, msg, NULL, NULL); 10684 10685nla_put_failure: 10686 nlmsg_free(msg); 10687 return -ENOBUFS; 10688} 10689 10690 10691static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10692{ 10693 struct i802_bss *bss = priv; 10694 struct wpa_driver_nl80211_data *drv = bss->drv; 10695 struct nl_msg *msg; 10696 enum nl80211_tdls_operation nl80211_oper; 10697 10698 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10699 return -EOPNOTSUPP; 10700 10701 switch (oper) { 10702 case TDLS_DISCOVERY_REQ: 10703 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10704 break; 10705 case TDLS_SETUP: 10706 nl80211_oper = NL80211_TDLS_SETUP; 10707 break; 10708 case TDLS_TEARDOWN: 10709 nl80211_oper = NL80211_TDLS_TEARDOWN; 10710 break; 10711 case TDLS_ENABLE_LINK: 10712 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10713 break; 10714 case TDLS_DISABLE_LINK: 10715 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10716 break; 10717 case TDLS_ENABLE: 10718 return 0; 10719 case TDLS_DISABLE: 10720 return 0; 10721 default: 10722 return -EINVAL; 10723 } 10724 10725 msg = nlmsg_alloc(); 10726 if (!msg) 10727 return -ENOMEM; 10728 10729 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10730 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10731 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10732 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10733 10734 return send_and_recv_msgs(drv, msg, NULL, NULL); 10735 10736nla_put_failure: 10737 nlmsg_free(msg); 10738 return -ENOBUFS; 10739} 10740 10741#endif /* CONFIG TDLS */ 10742 10743 10744#ifdef ANDROID 10745 10746typedef struct android_wifi_priv_cmd { 10747 char *buf; 10748 int used_len; 10749 int total_len; 10750} android_wifi_priv_cmd; 10751 10752static int drv_errors = 0; 10753 10754static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10755{ 10756 drv_errors++; 10757 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10758 drv_errors = 0; 10759 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10760 } 10761} 10762 10763 10764static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10765{ 10766 struct wpa_driver_nl80211_data *drv = bss->drv; 10767 struct ifreq ifr; 10768 android_wifi_priv_cmd priv_cmd; 10769 char buf[MAX_DRV_CMD_SIZE]; 10770 int ret; 10771 10772 os_memset(&ifr, 0, sizeof(ifr)); 10773 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10774 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10775 10776 os_memset(buf, 0, sizeof(buf)); 10777 os_strlcpy(buf, cmd, sizeof(buf)); 10778 10779 priv_cmd.buf = buf; 10780 priv_cmd.used_len = sizeof(buf); 10781 priv_cmd.total_len = sizeof(buf); 10782 ifr.ifr_data = &priv_cmd; 10783 10784 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10785 if (ret < 0) { 10786 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10787 __func__); 10788 wpa_driver_send_hang_msg(drv); 10789 return ret; 10790 } 10791 10792 drv_errors = 0; 10793 return 0; 10794} 10795 10796 10797static int android_pno_start(struct i802_bss *bss, 10798 struct wpa_driver_scan_params *params) 10799{ 10800 struct wpa_driver_nl80211_data *drv = bss->drv; 10801 struct ifreq ifr; 10802 android_wifi_priv_cmd priv_cmd; 10803 int ret = 0, i = 0, bp; 10804 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10805 10806 bp = WEXT_PNOSETUP_HEADER_SIZE; 10807 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10808 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10809 buf[bp++] = WEXT_PNO_TLV_VERSION; 10810 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10811 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10812 10813 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10814 /* Check that there is enough space needed for 1 more SSID, the 10815 * other sections and null termination */ 10816 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10817 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10818 break; 10819 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10820 params->ssids[i].ssid, 10821 params->ssids[i].ssid_len); 10822 buf[bp++] = WEXT_PNO_SSID_SECTION; 10823 buf[bp++] = params->ssids[i].ssid_len; 10824 os_memcpy(&buf[bp], params->ssids[i].ssid, 10825 params->ssids[i].ssid_len); 10826 bp += params->ssids[i].ssid_len; 10827 i++; 10828 } 10829 10830 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10831 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10832 WEXT_PNO_SCAN_INTERVAL); 10833 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10834 10835 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10836 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10837 WEXT_PNO_REPEAT); 10838 bp += WEXT_PNO_REPEAT_LENGTH; 10839 10840 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10841 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10842 WEXT_PNO_MAX_REPEAT); 10843 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10844 10845 memset(&ifr, 0, sizeof(ifr)); 10846 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10847 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10848 10849 priv_cmd.buf = buf; 10850 priv_cmd.used_len = bp; 10851 priv_cmd.total_len = bp; 10852 ifr.ifr_data = &priv_cmd; 10853 10854 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10855 10856 if (ret < 0) { 10857 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10858 ret); 10859 wpa_driver_send_hang_msg(drv); 10860 return ret; 10861 } 10862 10863 drv_errors = 0; 10864 10865 return android_priv_cmd(bss, "PNOFORCE 1"); 10866} 10867 10868 10869static int android_pno_stop(struct i802_bss *bss) 10870{ 10871 return android_priv_cmd(bss, "PNOFORCE 0"); 10872} 10873 10874#endif /* ANDROID */ 10875 10876 10877static int driver_nl80211_set_key(const char *ifname, void *priv, 10878 enum wpa_alg alg, const u8 *addr, 10879 int key_idx, int set_tx, 10880 const u8 *seq, size_t seq_len, 10881 const u8 *key, size_t key_len) 10882{ 10883 struct i802_bss *bss = priv; 10884 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10885 set_tx, seq, seq_len, key, key_len); 10886} 10887 10888 10889static int driver_nl80211_scan2(void *priv, 10890 struct wpa_driver_scan_params *params) 10891{ 10892 struct i802_bss *bss = priv; 10893 return wpa_driver_nl80211_scan(bss, params); 10894} 10895 10896 10897static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10898 int reason_code) 10899{ 10900 struct i802_bss *bss = priv; 10901 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10902} 10903 10904 10905static int driver_nl80211_authenticate(void *priv, 10906 struct wpa_driver_auth_params *params) 10907{ 10908 struct i802_bss *bss = priv; 10909 return wpa_driver_nl80211_authenticate(bss, params); 10910} 10911 10912 10913static void driver_nl80211_deinit(void *priv) 10914{ 10915 struct i802_bss *bss = priv; 10916 wpa_driver_nl80211_deinit(bss); 10917} 10918 10919 10920static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10921 const char *ifname) 10922{ 10923 struct i802_bss *bss = priv; 10924 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10925} 10926 10927 10928static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10929 size_t data_len, int noack) 10930{ 10931 struct i802_bss *bss = priv; 10932 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10933 0, 0, 0, 0); 10934} 10935 10936 10937static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10938{ 10939 struct i802_bss *bss = priv; 10940 return wpa_driver_nl80211_sta_remove(bss, addr); 10941} 10942 10943 10944#if defined(HOSTAPD) || defined(CONFIG_AP) 10945static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10946 const char *ifname, int vlan_id) 10947{ 10948 struct i802_bss *bss = priv; 10949 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10950} 10951#endif /* HOSTAPD || CONFIG_AP */ 10952 10953 10954static int driver_nl80211_read_sta_data(void *priv, 10955 struct hostap_sta_driver_data *data, 10956 const u8 *addr) 10957{ 10958 struct i802_bss *bss = priv; 10959 return i802_read_sta_data(bss, data, addr); 10960} 10961 10962 10963static int driver_nl80211_send_action(void *priv, unsigned int freq, 10964 unsigned int wait_time, 10965 const u8 *dst, const u8 *src, 10966 const u8 *bssid, 10967 const u8 *data, size_t data_len, 10968 int no_cck) 10969{ 10970 struct i802_bss *bss = priv; 10971 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10972 bssid, data, data_len, no_cck); 10973} 10974 10975 10976static int driver_nl80211_probe_req_report(void *priv, int report) 10977{ 10978 struct i802_bss *bss = priv; 10979 return wpa_driver_nl80211_probe_req_report(bss, report); 10980} 10981 10982 10983static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10984 const u8 *ies, size_t ies_len) 10985{ 10986 int ret; 10987 struct nl_msg *msg; 10988 struct i802_bss *bss = priv; 10989 struct wpa_driver_nl80211_data *drv = bss->drv; 10990 u16 mdid = WPA_GET_LE16(md); 10991 10992 msg = nlmsg_alloc(); 10993 if (!msg) 10994 return -ENOMEM; 10995 10996 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10997 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10999 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 11000 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 11001 11002 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 11003 if (ret) { 11004 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 11005 "err=%d (%s)", ret, strerror(-ret)); 11006 } 11007 11008 return ret; 11009 11010nla_put_failure: 11011 nlmsg_free(msg); 11012 return -ENOBUFS; 11013} 11014 11015 11016const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 11017{ 11018 struct i802_bss *bss = priv; 11019 struct wpa_driver_nl80211_data *drv = bss->drv; 11020 11021 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 11022 return NULL; 11023 11024 return bss->addr; 11025} 11026 11027 11028static const char * scan_state_str(enum scan_states scan_state) 11029{ 11030 switch (scan_state) { 11031 case NO_SCAN: 11032 return "NO_SCAN"; 11033 case SCAN_REQUESTED: 11034 return "SCAN_REQUESTED"; 11035 case SCAN_STARTED: 11036 return "SCAN_STARTED"; 11037 case SCAN_COMPLETED: 11038 return "SCAN_COMPLETED"; 11039 case SCAN_ABORTED: 11040 return "SCAN_ABORTED"; 11041 case SCHED_SCAN_STARTED: 11042 return "SCHED_SCAN_STARTED"; 11043 case SCHED_SCAN_STOPPED: 11044 return "SCHED_SCAN_STOPPED"; 11045 case SCHED_SCAN_RESULTS: 11046 return "SCHED_SCAN_RESULTS"; 11047 } 11048 11049 return "??"; 11050} 11051 11052 11053static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 11054{ 11055 struct i802_bss *bss = priv; 11056 struct wpa_driver_nl80211_data *drv = bss->drv; 11057 int res; 11058 char *pos, *end; 11059 11060 pos = buf; 11061 end = buf + buflen; 11062 11063 res = os_snprintf(pos, end - pos, 11064 "ifindex=%d\n" 11065 "ifname=%s\n" 11066 "brname=%s\n" 11067 "addr=" MACSTR "\n" 11068 "freq=%d\n" 11069 "%s%s%s%s%s", 11070 bss->ifindex, 11071 bss->ifname, 11072 bss->brname, 11073 MAC2STR(bss->addr), 11074 bss->freq, 11075 bss->beacon_set ? "beacon_set=1\n" : "", 11076 bss->added_if_into_bridge ? 11077 "added_if_into_bridge=1\n" : "", 11078 bss->added_bridge ? "added_bridge=1\n" : "", 11079 bss->in_deinit ? "in_deinit=1\n" : "", 11080 bss->if_dynamic ? "if_dynamic=1\n" : ""); 11081 if (res < 0 || res >= end - pos) 11082 return pos - buf; 11083 pos += res; 11084 11085 if (bss->wdev_id_set) { 11086 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 11087 (unsigned long long) bss->wdev_id); 11088 if (res < 0 || res >= end - pos) 11089 return pos - buf; 11090 pos += res; 11091 } 11092 11093 res = os_snprintf(pos, end - pos, 11094 "phyname=%s\n" 11095 "drv_ifindex=%d\n" 11096 "operstate=%d\n" 11097 "scan_state=%s\n" 11098 "auth_bssid=" MACSTR "\n" 11099 "auth_attempt_bssid=" MACSTR "\n" 11100 "bssid=" MACSTR "\n" 11101 "prev_bssid=" MACSTR "\n" 11102 "associated=%d\n" 11103 "assoc_freq=%u\n" 11104 "monitor_sock=%d\n" 11105 "monitor_ifidx=%d\n" 11106 "monitor_refcount=%d\n" 11107 "last_mgmt_freq=%u\n" 11108 "eapol_tx_sock=%d\n" 11109 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 11110 drv->phyname, 11111 drv->ifindex, 11112 drv->operstate, 11113 scan_state_str(drv->scan_state), 11114 MAC2STR(drv->auth_bssid), 11115 MAC2STR(drv->auth_attempt_bssid), 11116 MAC2STR(drv->bssid), 11117 MAC2STR(drv->prev_bssid), 11118 drv->associated, 11119 drv->assoc_freq, 11120 drv->monitor_sock, 11121 drv->monitor_ifidx, 11122 drv->monitor_refcount, 11123 drv->last_mgmt_freq, 11124 drv->eapol_tx_sock, 11125 drv->ignore_if_down_event ? 11126 "ignore_if_down_event=1\n" : "", 11127 drv->scan_complete_events ? 11128 "scan_complete_events=1\n" : "", 11129 drv->disabled_11b_rates ? 11130 "disabled_11b_rates=1\n" : "", 11131 drv->pending_remain_on_chan ? 11132 "pending_remain_on_chan=1\n" : "", 11133 drv->in_interface_list ? "in_interface_list=1\n" : "", 11134 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 11135 drv->poll_command_supported ? 11136 "poll_command_supported=1\n" : "", 11137 drv->data_tx_status ? "data_tx_status=1\n" : "", 11138 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 11139 drv->retry_auth ? "retry_auth=1\n" : "", 11140 drv->use_monitor ? "use_monitor=1\n" : "", 11141 drv->ignore_next_local_disconnect ? 11142 "ignore_next_local_disconnect=1\n" : "", 11143 drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); 11144 if (res < 0 || res >= end - pos) 11145 return pos - buf; 11146 pos += res; 11147 11148 if (drv->has_capability) { 11149 res = os_snprintf(pos, end - pos, 11150 "capa.key_mgmt=0x%x\n" 11151 "capa.enc=0x%x\n" 11152 "capa.auth=0x%x\n" 11153 "capa.flags=0x%x\n" 11154 "capa.max_scan_ssids=%d\n" 11155 "capa.max_sched_scan_ssids=%d\n" 11156 "capa.sched_scan_supported=%d\n" 11157 "capa.max_match_sets=%d\n" 11158 "capa.max_remain_on_chan=%u\n" 11159 "capa.max_stations=%u\n" 11160 "capa.probe_resp_offloads=0x%x\n" 11161 "capa.max_acl_mac_addrs=%u\n" 11162 "capa.num_multichan_concurrent=%u\n", 11163 drv->capa.key_mgmt, 11164 drv->capa.enc, 11165 drv->capa.auth, 11166 drv->capa.flags, 11167 drv->capa.max_scan_ssids, 11168 drv->capa.max_sched_scan_ssids, 11169 drv->capa.sched_scan_supported, 11170 drv->capa.max_match_sets, 11171 drv->capa.max_remain_on_chan, 11172 drv->capa.max_stations, 11173 drv->capa.probe_resp_offloads, 11174 drv->capa.max_acl_mac_addrs, 11175 drv->capa.num_multichan_concurrent); 11176 if (res < 0 || res >= end - pos) 11177 return pos - buf; 11178 pos += res; 11179 } 11180 11181 return pos - buf; 11182} 11183 11184 11185const struct wpa_driver_ops wpa_driver_nl80211_ops = { 11186 .name = "nl80211", 11187 .desc = "Linux nl80211/cfg80211", 11188 .get_bssid = wpa_driver_nl80211_get_bssid, 11189 .get_ssid = wpa_driver_nl80211_get_ssid, 11190 .set_key = driver_nl80211_set_key, 11191 .scan2 = driver_nl80211_scan2, 11192 .sched_scan = wpa_driver_nl80211_sched_scan, 11193 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 11194 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 11195 .deauthenticate = driver_nl80211_deauthenticate, 11196 .authenticate = driver_nl80211_authenticate, 11197 .associate = wpa_driver_nl80211_associate, 11198 .global_init = nl80211_global_init, 11199 .global_deinit = nl80211_global_deinit, 11200 .init2 = wpa_driver_nl80211_init, 11201 .deinit = driver_nl80211_deinit, 11202 .get_capa = wpa_driver_nl80211_get_capa, 11203 .set_operstate = wpa_driver_nl80211_set_operstate, 11204 .set_supp_port = wpa_driver_nl80211_set_supp_port, 11205 .set_country = wpa_driver_nl80211_set_country, 11206 .set_ap = wpa_driver_nl80211_set_ap, 11207 .set_acl = wpa_driver_nl80211_set_acl, 11208 .if_add = wpa_driver_nl80211_if_add, 11209 .if_remove = driver_nl80211_if_remove, 11210 .send_mlme = driver_nl80211_send_mlme, 11211 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 11212 .sta_add = wpa_driver_nl80211_sta_add, 11213 .sta_remove = driver_nl80211_sta_remove, 11214 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 11215 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 11216#ifdef HOSTAPD 11217 .hapd_init = i802_init, 11218 .hapd_deinit = i802_deinit, 11219 .set_wds_sta = i802_set_wds_sta, 11220#endif /* HOSTAPD */ 11221#if defined(HOSTAPD) || defined(CONFIG_AP) 11222 .get_seqnum = i802_get_seqnum, 11223 .flush = i802_flush, 11224 .get_inact_sec = i802_get_inact_sec, 11225 .sta_clear_stats = i802_sta_clear_stats, 11226 .set_rts = i802_set_rts, 11227 .set_frag = i802_set_frag, 11228 .set_tx_queue_params = i802_set_tx_queue_params, 11229 .set_sta_vlan = driver_nl80211_set_sta_vlan, 11230 .sta_deauth = i802_sta_deauth, 11231 .sta_disassoc = i802_sta_disassoc, 11232#endif /* HOSTAPD || CONFIG_AP */ 11233 .read_sta_data = driver_nl80211_read_sta_data, 11234 .set_freq = i802_set_freq, 11235 .send_action = driver_nl80211_send_action, 11236 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 11237 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 11238 .cancel_remain_on_channel = 11239 wpa_driver_nl80211_cancel_remain_on_channel, 11240 .probe_req_report = driver_nl80211_probe_req_report, 11241 .deinit_ap = wpa_driver_nl80211_deinit_ap, 11242 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 11243 .resume = wpa_driver_nl80211_resume, 11244 .send_ft_action = nl80211_send_ft_action, 11245 .signal_monitor = nl80211_signal_monitor, 11246 .signal_poll = nl80211_signal_poll, 11247 .send_frame = nl80211_send_frame, 11248 .shared_freq = wpa_driver_nl80211_shared_freq, 11249 .set_param = nl80211_set_param, 11250 .get_radio_name = nl80211_get_radio_name, 11251 .add_pmkid = nl80211_add_pmkid, 11252 .remove_pmkid = nl80211_remove_pmkid, 11253 .flush_pmkid = nl80211_flush_pmkid, 11254 .set_rekey_info = nl80211_set_rekey_info, 11255 .poll_client = nl80211_poll_client, 11256 .set_p2p_powersave = nl80211_set_p2p_powersave, 11257 .start_dfs_cac = nl80211_start_radar_detection, 11258 .stop_ap = wpa_driver_nl80211_stop_ap, 11259#ifdef CONFIG_TDLS 11260 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 11261 .tdls_oper = nl80211_tdls_oper, 11262#endif /* CONFIG_TDLS */ 11263 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 11264 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 11265 .get_survey = wpa_driver_nl80211_get_survey, 11266 .status = wpa_driver_nl80211_status, 11267#ifdef ANDROID_P2P 11268 .set_noa = wpa_driver_set_p2p_noa, 11269 .get_noa = wpa_driver_get_p2p_noa, 11270 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 11271#endif 11272#ifdef ANDROID 11273 .driver_cmd = wpa_driver_nl80211_driver_cmd, 11274#endif 11275}; 11276