driver_nl80211.c revision 5393a0f77c5281735888bd9dcf8d8abeb5961461
1/* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc. 5 * Copyright (c) 2005-2006, Devicescape Software, Inc. 6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> 7 * Copyright (c) 2009-2010, Atheros Communications 8 * 9 * This software may be distributed under the terms of the BSD license. 10 * See README for more details. 11 */ 12 13#include "includes.h" 14#include <sys/ioctl.h> 15#include <sys/types.h> 16#include <sys/stat.h> 17#include <fcntl.h> 18#include <net/if.h> 19#include <netlink/genl/genl.h> 20#include <netlink/genl/family.h> 21#include <netlink/genl/ctrl.h> 22#include <linux/rtnetlink.h> 23#include <netpacket/packet.h> 24#include <linux/filter.h> 25#include <linux/errqueue.h> 26#include "nl80211_copy.h" 27 28#include "common.h" 29#include "eloop.h" 30#include "utils/list.h" 31#include "common/ieee802_11_defs.h" 32#include "common/ieee802_11_common.h" 33#include "l2_packet/l2_packet.h" 34#include "netlink.h" 35#include "linux_ioctl.h" 36#include "radiotap.h" 37#include "radiotap_iter.h" 38#include "rfkill.h" 39#include "driver.h" 40 41#ifndef SO_WIFI_STATUS 42# if defined(__sparc__) 43# define SO_WIFI_STATUS 0x0025 44# elif defined(__parisc__) 45# define SO_WIFI_STATUS 0x4022 46# else 47# define SO_WIFI_STATUS 41 48# endif 49 50# define SCM_WIFI_STATUS SO_WIFI_STATUS 51#endif 52 53#ifndef SO_EE_ORIGIN_TXSTATUS 54#define SO_EE_ORIGIN_TXSTATUS 4 55#endif 56 57#ifndef PACKET_TX_TIMESTAMP 58#define PACKET_TX_TIMESTAMP 16 59#endif 60 61#ifdef ANDROID 62#include "android_drv.h" 63#endif /* ANDROID */ 64#ifdef CONFIG_LIBNL20 65/* libnl 2.0 compatibility code */ 66#define nl_handle nl_sock 67#define nl80211_handle_alloc nl_socket_alloc_cb 68#define nl80211_handle_destroy nl_socket_free 69#else 70/* 71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 72 * but when you free a socket again it will mess up its bitmap and 73 * and use the wrong number the next time it needs a socket ID. 74 * Therefore, we wrap the handle alloc/destroy and add our own pid 75 * accounting. 76 */ 77static uint32_t port_bitmap[32] = { 0 }; 78 79static struct nl_handle *nl80211_handle_alloc(void *cb) 80{ 81 struct nl_handle *handle; 82 uint32_t pid = getpid() & 0x3FFFFF; 83 int i; 84 85 handle = nl_handle_alloc_cb(cb); 86 87 for (i = 0; i < 1024; i++) { 88 if (port_bitmap[i / 32] & (1 << (i % 32))) 89 continue; 90 port_bitmap[i / 32] |= 1 << (i % 32); 91 pid += i << 22; 92 break; 93 } 94 95 nl_socket_set_local_port(handle, pid); 96 97 return handle; 98} 99 100static void nl80211_handle_destroy(struct nl_handle *handle) 101{ 102 uint32_t port = nl_socket_get_local_port(handle); 103 104 port >>= 22; 105 port_bitmap[port / 32] &= ~(1 << (port % 32)); 106 107 nl_handle_destroy(handle); 108} 109#endif /* CONFIG_LIBNL20 */ 110 111 112static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 113{ 114 struct nl_handle *handle; 115 116 handle = nl80211_handle_alloc(cb); 117 if (handle == NULL) { 118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 119 "callbacks (%s)", dbg); 120 return NULL; 121 } 122 123 if (genl_connect(handle)) { 124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 125 "netlink (%s)", dbg); 126 nl80211_handle_destroy(handle); 127 return NULL; 128 } 129 130 return handle; 131} 132 133 134static void nl_destroy_handles(struct nl_handle **handle) 135{ 136 if (*handle == NULL) 137 return; 138 nl80211_handle_destroy(*handle); 139 *handle = NULL; 140} 141 142 143#ifndef IFF_LOWER_UP 144#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 145#endif 146#ifndef IFF_DORMANT 147#define IFF_DORMANT 0x20000 /* driver signals dormant */ 148#endif 149 150#ifndef IF_OPER_DORMANT 151#define IF_OPER_DORMANT 5 152#endif 153#ifndef IF_OPER_UP 154#define IF_OPER_UP 6 155#endif 156 157struct nl80211_global { 158 struct dl_list interfaces; 159 int if_add_ifindex; 160 u64 if_add_wdevid; 161 int if_add_wdevid_set; 162 struct netlink_data *netlink; 163 struct nl_cb *nl_cb; 164 struct nl_handle *nl; 165 int nl80211_id; 166 int ioctl_sock; /* socket for ioctl() use */ 167 168 struct nl_handle *nl_event; 169}; 170 171struct nl80211_wiphy_data { 172 struct dl_list list; 173 struct dl_list bsss; 174 struct dl_list drvs; 175 176 struct nl_handle *nl_beacons; 177 struct nl_cb *nl_cb; 178 179 int wiphy_idx; 180}; 181 182static void nl80211_global_deinit(void *priv); 183 184struct i802_bss { 185 struct wpa_driver_nl80211_data *drv; 186 struct i802_bss *next; 187 int ifindex; 188 u64 wdev_id; 189 char ifname[IFNAMSIZ + 1]; 190 char brname[IFNAMSIZ]; 191 unsigned int beacon_set:1; 192 unsigned int added_if_into_bridge:1; 193 unsigned int added_bridge:1; 194 unsigned int in_deinit:1; 195 unsigned int wdev_id_set:1; 196 197 u8 addr[ETH_ALEN]; 198 199 int freq; 200 201 void *ctx; 202 struct nl_handle *nl_preq, *nl_mgmt; 203 struct nl_cb *nl_cb; 204 205 struct nl80211_wiphy_data *wiphy_data; 206 struct dl_list wiphy_list; 207}; 208 209struct wpa_driver_nl80211_data { 210 struct nl80211_global *global; 211 struct dl_list list; 212 struct dl_list wiphy_list; 213 char phyname[32]; 214 void *ctx; 215 int ifindex; 216 int if_removed; 217 int if_disabled; 218 int ignore_if_down_event; 219 struct rfkill_data *rfkill; 220 struct wpa_driver_capa capa; 221 u8 *extended_capa, *extended_capa_mask; 222 unsigned int extended_capa_len; 223 int has_capability; 224 225 int operstate; 226 227 int scan_complete_events; 228 229 struct nl_cb *nl_cb; 230 231 u8 auth_bssid[ETH_ALEN]; 232 u8 auth_attempt_bssid[ETH_ALEN]; 233 u8 bssid[ETH_ALEN]; 234 u8 prev_bssid[ETH_ALEN]; 235 int associated; 236 u8 ssid[32]; 237 size_t ssid_len; 238 enum nl80211_iftype nlmode; 239 enum nl80211_iftype ap_scan_as_station; 240 unsigned int assoc_freq; 241 242 int monitor_sock; 243 int monitor_ifidx; 244 int monitor_refcount; 245 246 unsigned int disabled_11b_rates:1; 247 unsigned int pending_remain_on_chan:1; 248 unsigned int in_interface_list:1; 249 unsigned int device_ap_sme:1; 250 unsigned int poll_command_supported:1; 251 unsigned int data_tx_status:1; 252 unsigned int scan_for_auth:1; 253 unsigned int retry_auth:1; 254 unsigned int use_monitor:1; 255 unsigned int ignore_next_local_disconnect:1; 256 unsigned int allow_p2p_device:1; 257 258 u64 remain_on_chan_cookie; 259 u64 send_action_cookie; 260 261 unsigned int last_mgmt_freq; 262 263 struct wpa_driver_scan_filter *filter_ssids; 264 size_t num_filter_ssids; 265 266 struct i802_bss first_bss; 267 268 int eapol_tx_sock; 269 270#ifdef HOSTAPD 271 int eapol_sock; /* socket for EAPOL frames */ 272 273 int default_if_indices[16]; 274 int *if_indices; 275 int num_if_indices; 276 277 int last_freq; 278 int last_freq_ht; 279#endif /* HOSTAPD */ 280 281 /* From failed authentication command */ 282 int auth_freq; 283 u8 auth_bssid_[ETH_ALEN]; 284 u8 auth_ssid[32]; 285 size_t auth_ssid_len; 286 int auth_alg; 287 u8 *auth_ie; 288 size_t auth_ie_len; 289 u8 auth_wep_key[4][16]; 290 size_t auth_wep_key_len[4]; 291 int auth_wep_tx_keyidx; 292 int auth_local_state_change; 293 int auth_p2p; 294}; 295 296 297static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 298static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 299 void *timeout_ctx); 300static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 301 enum nl80211_iftype nlmode); 302static int 303wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 304static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 305 const u8 *addr, int cmd, u16 reason_code, 306 int local_state_change); 307static void nl80211_remove_monitor_interface( 308 struct wpa_driver_nl80211_data *drv); 309static int nl80211_send_frame_cmd(struct i802_bss *bss, 310 unsigned int freq, unsigned int wait, 311 const u8 *buf, size_t buf_len, u64 *cookie, 312 int no_cck, int no_ack, int offchanok); 313static int nl80211_register_frame(struct i802_bss *bss, 314 struct nl_handle *hl_handle, 315 u16 type, const u8 *match, size_t match_len); 316static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 317 int report); 318#ifdef ANDROID 319static int android_pno_start(struct i802_bss *bss, 320 struct wpa_driver_scan_params *params); 321static int android_pno_stop(struct i802_bss *bss); 322#endif /* ANDROID */ 323#ifdef ANDROID_P2P 324int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 325int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 326int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 327int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 328 const struct wpabuf *proberesp, 329 const struct wpabuf *assocresp); 330 331#endif 332#ifdef HOSTAPD 333static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 334static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 335static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 336static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 337 enum wpa_driver_if_type type, 338 const char *ifname); 339#else /* HOSTAPD */ 340static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 341{ 342} 343 344static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 345{ 346} 347 348static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 349{ 350 return 0; 351} 352#endif /* HOSTAPD */ 353#ifdef ANDROID 354extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 355 size_t buf_len); 356#endif 357 358static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 359 struct hostapd_freq_params *freq); 360static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 361 int ifindex, int disabled); 362 363static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 364static int wpa_driver_nl80211_authenticate_retry( 365 struct wpa_driver_nl80211_data *drv); 366 367 368static const char * nl80211_command_to_string(enum nl80211_commands cmd) 369{ 370#define C2S(x) case x: return #x; 371 switch (cmd) { 372 C2S(NL80211_CMD_UNSPEC) 373 C2S(NL80211_CMD_GET_WIPHY) 374 C2S(NL80211_CMD_SET_WIPHY) 375 C2S(NL80211_CMD_NEW_WIPHY) 376 C2S(NL80211_CMD_DEL_WIPHY) 377 C2S(NL80211_CMD_GET_INTERFACE) 378 C2S(NL80211_CMD_SET_INTERFACE) 379 C2S(NL80211_CMD_NEW_INTERFACE) 380 C2S(NL80211_CMD_DEL_INTERFACE) 381 C2S(NL80211_CMD_GET_KEY) 382 C2S(NL80211_CMD_SET_KEY) 383 C2S(NL80211_CMD_NEW_KEY) 384 C2S(NL80211_CMD_DEL_KEY) 385 C2S(NL80211_CMD_GET_BEACON) 386 C2S(NL80211_CMD_SET_BEACON) 387 C2S(NL80211_CMD_START_AP) 388 C2S(NL80211_CMD_STOP_AP) 389 C2S(NL80211_CMD_GET_STATION) 390 C2S(NL80211_CMD_SET_STATION) 391 C2S(NL80211_CMD_NEW_STATION) 392 C2S(NL80211_CMD_DEL_STATION) 393 C2S(NL80211_CMD_GET_MPATH) 394 C2S(NL80211_CMD_SET_MPATH) 395 C2S(NL80211_CMD_NEW_MPATH) 396 C2S(NL80211_CMD_DEL_MPATH) 397 C2S(NL80211_CMD_SET_BSS) 398 C2S(NL80211_CMD_SET_REG) 399 C2S(NL80211_CMD_REQ_SET_REG) 400 C2S(NL80211_CMD_GET_MESH_CONFIG) 401 C2S(NL80211_CMD_SET_MESH_CONFIG) 402 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 403 C2S(NL80211_CMD_GET_REG) 404 C2S(NL80211_CMD_GET_SCAN) 405 C2S(NL80211_CMD_TRIGGER_SCAN) 406 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 407 C2S(NL80211_CMD_SCAN_ABORTED) 408 C2S(NL80211_CMD_REG_CHANGE) 409 C2S(NL80211_CMD_AUTHENTICATE) 410 C2S(NL80211_CMD_ASSOCIATE) 411 C2S(NL80211_CMD_DEAUTHENTICATE) 412 C2S(NL80211_CMD_DISASSOCIATE) 413 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 414 C2S(NL80211_CMD_REG_BEACON_HINT) 415 C2S(NL80211_CMD_JOIN_IBSS) 416 C2S(NL80211_CMD_LEAVE_IBSS) 417 C2S(NL80211_CMD_TESTMODE) 418 C2S(NL80211_CMD_CONNECT) 419 C2S(NL80211_CMD_ROAM) 420 C2S(NL80211_CMD_DISCONNECT) 421 C2S(NL80211_CMD_SET_WIPHY_NETNS) 422 C2S(NL80211_CMD_GET_SURVEY) 423 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 424 C2S(NL80211_CMD_SET_PMKSA) 425 C2S(NL80211_CMD_DEL_PMKSA) 426 C2S(NL80211_CMD_FLUSH_PMKSA) 427 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 428 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 429 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 430 C2S(NL80211_CMD_REGISTER_FRAME) 431 C2S(NL80211_CMD_FRAME) 432 C2S(NL80211_CMD_FRAME_TX_STATUS) 433 C2S(NL80211_CMD_SET_POWER_SAVE) 434 C2S(NL80211_CMD_GET_POWER_SAVE) 435 C2S(NL80211_CMD_SET_CQM) 436 C2S(NL80211_CMD_NOTIFY_CQM) 437 C2S(NL80211_CMD_SET_CHANNEL) 438 C2S(NL80211_CMD_SET_WDS_PEER) 439 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 440 C2S(NL80211_CMD_JOIN_MESH) 441 C2S(NL80211_CMD_LEAVE_MESH) 442 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 443 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 444 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 445 C2S(NL80211_CMD_GET_WOWLAN) 446 C2S(NL80211_CMD_SET_WOWLAN) 447 C2S(NL80211_CMD_START_SCHED_SCAN) 448 C2S(NL80211_CMD_STOP_SCHED_SCAN) 449 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 450 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 451 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 452 C2S(NL80211_CMD_PMKSA_CANDIDATE) 453 C2S(NL80211_CMD_TDLS_OPER) 454 C2S(NL80211_CMD_TDLS_MGMT) 455 C2S(NL80211_CMD_UNEXPECTED_FRAME) 456 C2S(NL80211_CMD_PROBE_CLIENT) 457 C2S(NL80211_CMD_REGISTER_BEACONS) 458 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 459 C2S(NL80211_CMD_SET_NOACK_MAP) 460 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 461 C2S(NL80211_CMD_START_P2P_DEVICE) 462 C2S(NL80211_CMD_STOP_P2P_DEVICE) 463 C2S(NL80211_CMD_CONN_FAILED) 464 C2S(NL80211_CMD_SET_MCAST_RATE) 465 C2S(NL80211_CMD_SET_MAC_ACL) 466 C2S(NL80211_CMD_RADAR_DETECT) 467 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 468 C2S(NL80211_CMD_UPDATE_FT_IES) 469 C2S(NL80211_CMD_FT_EVENT) 470 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 471 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 472 default: 473 return "NL80211_CMD_UNKNOWN"; 474 } 475#undef C2S 476} 477 478 479static int is_ap_interface(enum nl80211_iftype nlmode) 480{ 481 return (nlmode == NL80211_IFTYPE_AP || 482 nlmode == NL80211_IFTYPE_P2P_GO); 483} 484 485 486static int is_sta_interface(enum nl80211_iftype nlmode) 487{ 488 return (nlmode == NL80211_IFTYPE_STATION || 489 nlmode == NL80211_IFTYPE_P2P_CLIENT); 490} 491 492 493static int is_p2p_net_interface(enum nl80211_iftype nlmode) 494{ 495 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 496 nlmode == NL80211_IFTYPE_P2P_GO); 497} 498 499 500static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 501{ 502 if (drv->associated) 503 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 504 drv->associated = 0; 505 os_memset(drv->bssid, 0, ETH_ALEN); 506} 507 508 509struct nl80211_bss_info_arg { 510 struct wpa_driver_nl80211_data *drv; 511 struct wpa_scan_results *res; 512 unsigned int assoc_freq; 513 u8 assoc_bssid[ETH_ALEN]; 514}; 515 516static int bss_info_handler(struct nl_msg *msg, void *arg); 517 518 519/* nl80211 code */ 520static int ack_handler(struct nl_msg *msg, void *arg) 521{ 522 int *err = arg; 523 *err = 0; 524 return NL_STOP; 525} 526 527static int finish_handler(struct nl_msg *msg, void *arg) 528{ 529 int *ret = arg; 530 *ret = 0; 531 return NL_SKIP; 532} 533 534static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 535 void *arg) 536{ 537 int *ret = arg; 538 *ret = err->error; 539 return NL_SKIP; 540} 541 542 543static int no_seq_check(struct nl_msg *msg, void *arg) 544{ 545 return NL_OK; 546} 547 548 549static int send_and_recv(struct nl80211_global *global, 550 struct nl_handle *nl_handle, struct nl_msg *msg, 551 int (*valid_handler)(struct nl_msg *, void *), 552 void *valid_data) 553{ 554 struct nl_cb *cb; 555 int err = -ENOMEM; 556 557 cb = nl_cb_clone(global->nl_cb); 558 if (!cb) 559 goto out; 560 561 err = nl_send_auto_complete(nl_handle, msg); 562 if (err < 0) 563 goto out; 564 565 err = 1; 566 567 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 568 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 569 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 570 571 if (valid_handler) 572 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 573 valid_handler, valid_data); 574 575 while (err > 0) 576 nl_recvmsgs(nl_handle, cb); 577 out: 578 nl_cb_put(cb); 579 nlmsg_free(msg); 580 return err; 581} 582 583 584static int send_and_recv_msgs_global(struct nl80211_global *global, 585 struct nl_msg *msg, 586 int (*valid_handler)(struct nl_msg *, void *), 587 void *valid_data) 588{ 589 return send_and_recv(global, global->nl, msg, valid_handler, 590 valid_data); 591} 592 593 594#ifndef ANDROID 595static 596#endif 597int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 598 struct nl_msg *msg, 599 int (*valid_handler)(struct nl_msg *, void *), 600 void *valid_data) 601{ 602 return send_and_recv(drv->global, drv->global->nl, msg, 603 valid_handler, valid_data); 604} 605 606 607struct family_data { 608 const char *group; 609 int id; 610}; 611 612 613static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 614{ 615 if (bss->wdev_id_set) 616 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 617 else 618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 619 return 0; 620 621nla_put_failure: 622 return -1; 623} 624 625 626static int family_handler(struct nl_msg *msg, void *arg) 627{ 628 struct family_data *res = arg; 629 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 630 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 631 struct nlattr *mcgrp; 632 int i; 633 634 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 635 genlmsg_attrlen(gnlh, 0), NULL); 636 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 637 return NL_SKIP; 638 639 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 640 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 641 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 642 nla_len(mcgrp), NULL); 643 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 644 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 645 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 646 res->group, 647 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 648 continue; 649 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 650 break; 651 }; 652 653 return NL_SKIP; 654} 655 656 657static int nl_get_multicast_id(struct nl80211_global *global, 658 const char *family, const char *group) 659{ 660 struct nl_msg *msg; 661 int ret = -1; 662 struct family_data res = { group, -ENOENT }; 663 664 msg = nlmsg_alloc(); 665 if (!msg) 666 return -ENOMEM; 667 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 668 0, 0, CTRL_CMD_GETFAMILY, 0); 669 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 670 671 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 672 msg = NULL; 673 if (ret == 0) 674 ret = res.id; 675 676nla_put_failure: 677 nlmsg_free(msg); 678 return ret; 679} 680 681 682static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 683 struct nl_msg *msg, int flags, uint8_t cmd) 684{ 685 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 686 0, flags, cmd, 0); 687} 688 689 690struct wiphy_idx_data { 691 int wiphy_idx; 692 enum nl80211_iftype nlmode; 693 u8 *macaddr; 694}; 695 696 697static int netdev_info_handler(struct nl_msg *msg, void *arg) 698{ 699 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 700 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 701 struct wiphy_idx_data *info = arg; 702 703 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 704 genlmsg_attrlen(gnlh, 0), NULL); 705 706 if (tb[NL80211_ATTR_WIPHY]) 707 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 708 709 if (tb[NL80211_ATTR_IFTYPE]) 710 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 711 712 if (tb[NL80211_ATTR_MAC] && info->macaddr) 713 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 714 ETH_ALEN); 715 716 return NL_SKIP; 717} 718 719 720static int nl80211_get_wiphy_index(struct i802_bss *bss) 721{ 722 struct nl_msg *msg; 723 struct wiphy_idx_data data = { 724 .wiphy_idx = -1, 725 .macaddr = NULL, 726 }; 727 728 msg = nlmsg_alloc(); 729 if (!msg) 730 return NL80211_IFTYPE_UNSPECIFIED; 731 732 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 733 734 if (nl80211_set_iface_id(msg, bss) < 0) 735 goto nla_put_failure; 736 737 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 738 return data.wiphy_idx; 739 msg = NULL; 740nla_put_failure: 741 nlmsg_free(msg); 742 return -1; 743} 744 745 746static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 747{ 748 struct nl_msg *msg; 749 struct wiphy_idx_data data = { 750 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 751 .macaddr = NULL, 752 }; 753 754 msg = nlmsg_alloc(); 755 if (!msg) 756 return -1; 757 758 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 759 760 if (nl80211_set_iface_id(msg, bss) < 0) 761 goto nla_put_failure; 762 763 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 764 return data.nlmode; 765 msg = NULL; 766nla_put_failure: 767 nlmsg_free(msg); 768 return NL80211_IFTYPE_UNSPECIFIED; 769} 770 771 772#ifndef HOSTAPD 773static int nl80211_get_macaddr(struct i802_bss *bss) 774{ 775 struct nl_msg *msg; 776 struct wiphy_idx_data data = { 777 .macaddr = bss->addr, 778 }; 779 780 msg = nlmsg_alloc(); 781 if (!msg) 782 return NL80211_IFTYPE_UNSPECIFIED; 783 784 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 785 if (nl80211_set_iface_id(msg, bss) < 0) 786 goto nla_put_failure; 787 788 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 789 790nla_put_failure: 791 nlmsg_free(msg); 792 return NL80211_IFTYPE_UNSPECIFIED; 793} 794#endif /* HOSTAPD */ 795 796 797static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 798 struct nl80211_wiphy_data *w) 799{ 800 struct nl_msg *msg; 801 int ret = -1; 802 803 msg = nlmsg_alloc(); 804 if (!msg) 805 return -1; 806 807 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 808 809 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 810 811 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 812 msg = NULL; 813 if (ret) { 814 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 815 "failed: ret=%d (%s)", 816 ret, strerror(-ret)); 817 goto nla_put_failure; 818 } 819 ret = 0; 820nla_put_failure: 821 nlmsg_free(msg); 822 return ret; 823} 824 825 826static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 827{ 828 struct nl80211_wiphy_data *w = eloop_ctx; 829 830 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 831 832 nl_recvmsgs(handle, w->nl_cb); 833} 834 835 836static int process_beacon_event(struct nl_msg *msg, void *arg) 837{ 838 struct nl80211_wiphy_data *w = arg; 839 struct wpa_driver_nl80211_data *drv; 840 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 841 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 842 union wpa_event_data event; 843 844 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 845 genlmsg_attrlen(gnlh, 0), NULL); 846 847 if (gnlh->cmd != NL80211_CMD_FRAME) { 848 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 849 gnlh->cmd); 850 return NL_SKIP; 851 } 852 853 if (!tb[NL80211_ATTR_FRAME]) 854 return NL_SKIP; 855 856 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 857 wiphy_list) { 858 os_memset(&event, 0, sizeof(event)); 859 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 860 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 861 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 862 } 863 864 return NL_SKIP; 865} 866 867 868static struct nl80211_wiphy_data * 869nl80211_get_wiphy_data_ap(struct i802_bss *bss) 870{ 871 static DEFINE_DL_LIST(nl80211_wiphys); 872 struct nl80211_wiphy_data *w; 873 int wiphy_idx, found = 0; 874 struct i802_bss *tmp_bss; 875 876 if (bss->wiphy_data != NULL) 877 return bss->wiphy_data; 878 879 wiphy_idx = nl80211_get_wiphy_index(bss); 880 881 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 882 if (w->wiphy_idx == wiphy_idx) 883 goto add; 884 } 885 886 /* alloc new one */ 887 w = os_zalloc(sizeof(*w)); 888 if (w == NULL) 889 return NULL; 890 w->wiphy_idx = wiphy_idx; 891 dl_list_init(&w->bsss); 892 dl_list_init(&w->drvs); 893 894 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 895 if (!w->nl_cb) { 896 os_free(w); 897 return NULL; 898 } 899 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 900 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 901 w); 902 903 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 904 "wiphy beacons"); 905 if (w->nl_beacons == NULL) { 906 os_free(w); 907 return NULL; 908 } 909 910 if (nl80211_register_beacons(bss->drv, w)) { 911 nl_destroy_handles(&w->nl_beacons); 912 os_free(w); 913 return NULL; 914 } 915 916 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 917 nl80211_recv_beacons, w, w->nl_beacons); 918 919 dl_list_add(&nl80211_wiphys, &w->list); 920 921add: 922 /* drv entry for this bss already there? */ 923 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 924 if (tmp_bss->drv == bss->drv) { 925 found = 1; 926 break; 927 } 928 } 929 /* if not add it */ 930 if (!found) 931 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 932 933 dl_list_add(&w->bsss, &bss->wiphy_list); 934 bss->wiphy_data = w; 935 return w; 936} 937 938 939static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 940{ 941 struct nl80211_wiphy_data *w = bss->wiphy_data; 942 struct i802_bss *tmp_bss; 943 int found = 0; 944 945 if (w == NULL) 946 return; 947 bss->wiphy_data = NULL; 948 dl_list_del(&bss->wiphy_list); 949 950 /* still any for this drv present? */ 951 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 952 if (tmp_bss->drv == bss->drv) { 953 found = 1; 954 break; 955 } 956 } 957 /* if not remove it */ 958 if (!found) 959 dl_list_del(&bss->drv->wiphy_list); 960 961 if (!dl_list_empty(&w->bsss)) 962 return; 963 964 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 965 966 nl_cb_put(w->nl_cb); 967 nl_destroy_handles(&w->nl_beacons); 968 dl_list_del(&w->list); 969 os_free(w); 970} 971 972 973static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 974{ 975 struct i802_bss *bss = priv; 976 struct wpa_driver_nl80211_data *drv = bss->drv; 977 if (!drv->associated) 978 return -1; 979 os_memcpy(bssid, drv->bssid, ETH_ALEN); 980 return 0; 981} 982 983 984static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 985{ 986 struct i802_bss *bss = priv; 987 struct wpa_driver_nl80211_data *drv = bss->drv; 988 if (!drv->associated) 989 return -1; 990 os_memcpy(ssid, drv->ssid, drv->ssid_len); 991 return drv->ssid_len; 992} 993 994 995static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 996 char *buf, size_t len, int del) 997{ 998 union wpa_event_data event; 999 1000 os_memset(&event, 0, sizeof(event)); 1001 if (len > sizeof(event.interface_status.ifname)) 1002 len = sizeof(event.interface_status.ifname) - 1; 1003 os_memcpy(event.interface_status.ifname, buf, len); 1004 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 1005 EVENT_INTERFACE_ADDED; 1006 1007 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 1008 del ? "DEL" : "NEW", 1009 event.interface_status.ifname, 1010 del ? "removed" : "added"); 1011 1012 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 1013 if (del) { 1014 if (drv->if_removed) { 1015 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1016 "already set - ignore event"); 1017 return; 1018 } 1019 drv->if_removed = 1; 1020 } else { 1021 if (if_nametoindex(drv->first_bss.ifname) == 0) { 1022 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 1023 "does not exist - ignore " 1024 "RTM_NEWLINK", 1025 drv->first_bss.ifname); 1026 return; 1027 } 1028 if (!drv->if_removed) { 1029 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 1030 "already cleared - ignore event"); 1031 return; 1032 } 1033 drv->if_removed = 0; 1034 } 1035 } 1036 1037 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 1038} 1039 1040 1041static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 1042 u8 *buf, size_t len) 1043{ 1044 int attrlen, rta_len; 1045 struct rtattr *attr; 1046 1047 attrlen = len; 1048 attr = (struct rtattr *) buf; 1049 1050 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1051 while (RTA_OK(attr, attrlen)) { 1052 if (attr->rta_type == IFLA_IFNAME) { 1053 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 1054 == 0) 1055 return 1; 1056 else 1057 break; 1058 } 1059 attr = RTA_NEXT(attr, attrlen); 1060 } 1061 1062 return 0; 1063} 1064 1065 1066static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 1067 int ifindex, u8 *buf, size_t len) 1068{ 1069 if (drv->ifindex == ifindex) 1070 return 1; 1071 1072 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 1073 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 1074 "interface"); 1075 wpa_driver_nl80211_finish_drv_init(drv); 1076 return 1; 1077 } 1078 1079 return 0; 1080} 1081 1082 1083static struct wpa_driver_nl80211_data * 1084nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 1085{ 1086 struct wpa_driver_nl80211_data *drv; 1087 dl_list_for_each(drv, &global->interfaces, 1088 struct wpa_driver_nl80211_data, list) { 1089 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 1090 have_ifidx(drv, idx)) 1091 return drv; 1092 } 1093 return NULL; 1094} 1095 1096 1097static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 1098 struct ifinfomsg *ifi, 1099 u8 *buf, size_t len) 1100{ 1101 struct nl80211_global *global = ctx; 1102 struct wpa_driver_nl80211_data *drv; 1103 int attrlen, rta_len; 1104 struct rtattr *attr; 1105 u32 brid = 0; 1106 char namebuf[IFNAMSIZ]; 1107 1108 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1109 if (!drv) { 1110 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 1111 "ifindex %d", ifi->ifi_index); 1112 return; 1113 } 1114 1115 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 1116 "(%s%s%s%s)", 1117 drv->operstate, ifi->ifi_flags, 1118 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1119 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1120 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1121 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1122 1123 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 1124 if (if_indextoname(ifi->ifi_index, namebuf) && 1125 linux_iface_up(drv->global->ioctl_sock, 1126 drv->first_bss.ifname) > 0) { 1127 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1128 "event since interface %s is up", namebuf); 1129 return; 1130 } 1131 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 1132 if (drv->ignore_if_down_event) { 1133 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1134 "event generated by mode change"); 1135 drv->ignore_if_down_event = 0; 1136 } else { 1137 drv->if_disabled = 1; 1138 wpa_supplicant_event(drv->ctx, 1139 EVENT_INTERFACE_DISABLED, NULL); 1140 } 1141 } 1142 1143 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1144 if (if_indextoname(ifi->ifi_index, namebuf) && 1145 linux_iface_up(drv->global->ioctl_sock, 1146 drv->first_bss.ifname) == 0) { 1147 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1148 "event since interface %s is down", 1149 namebuf); 1150 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 1151 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1152 "event since interface %s does not exist", 1153 drv->first_bss.ifname); 1154 } else if (drv->if_removed) { 1155 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1156 "event since interface %s is marked " 1157 "removed", drv->first_bss.ifname); 1158 } else { 1159 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1160 drv->if_disabled = 0; 1161 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1162 NULL); 1163 } 1164 } 1165 1166 /* 1167 * Some drivers send the association event before the operup event--in 1168 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1169 * fails. This will hit us when wpa_supplicant does not need to do 1170 * IEEE 802.1X authentication 1171 */ 1172 if (drv->operstate == 1 && 1173 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1174 !(ifi->ifi_flags & IFF_RUNNING)) 1175 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1176 -1, IF_OPER_UP); 1177 1178 attrlen = len; 1179 attr = (struct rtattr *) buf; 1180 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1181 while (RTA_OK(attr, attrlen)) { 1182 if (attr->rta_type == IFLA_IFNAME) { 1183 wpa_driver_nl80211_event_link( 1184 drv, 1185 ((char *) attr) + rta_len, 1186 attr->rta_len - rta_len, 0); 1187 } else if (attr->rta_type == IFLA_MASTER) 1188 brid = nla_get_u32((struct nlattr *) attr); 1189 attr = RTA_NEXT(attr, attrlen); 1190 } 1191 1192 if (ifi->ifi_family == AF_BRIDGE && brid) { 1193 /* device has been added to bridge */ 1194 if_indextoname(brid, namebuf); 1195 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1196 brid, namebuf); 1197 add_ifidx(drv, brid); 1198 } 1199} 1200 1201 1202static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1203 struct ifinfomsg *ifi, 1204 u8 *buf, size_t len) 1205{ 1206 struct nl80211_global *global = ctx; 1207 struct wpa_driver_nl80211_data *drv; 1208 int attrlen, rta_len; 1209 struct rtattr *attr; 1210 u32 brid = 0; 1211 1212 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1213 if (!drv) { 1214 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1215 "foreign ifindex %d", ifi->ifi_index); 1216 return; 1217 } 1218 1219 attrlen = len; 1220 attr = (struct rtattr *) buf; 1221 1222 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1223 while (RTA_OK(attr, attrlen)) { 1224 if (attr->rta_type == IFLA_IFNAME) { 1225 wpa_driver_nl80211_event_link( 1226 drv, 1227 ((char *) attr) + rta_len, 1228 attr->rta_len - rta_len, 1); 1229 } else if (attr->rta_type == IFLA_MASTER) 1230 brid = nla_get_u32((struct nlattr *) attr); 1231 attr = RTA_NEXT(attr, attrlen); 1232 } 1233 1234 if (ifi->ifi_family == AF_BRIDGE && brid) { 1235 /* device has been removed from bridge */ 1236 char namebuf[IFNAMSIZ]; 1237 if_indextoname(brid, namebuf); 1238 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1239 "%s", brid, namebuf); 1240 del_ifidx(drv, brid); 1241 } 1242} 1243 1244 1245static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1246 const u8 *frame, size_t len) 1247{ 1248 const struct ieee80211_mgmt *mgmt; 1249 union wpa_event_data event; 1250 1251 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1252 mgmt = (const struct ieee80211_mgmt *) frame; 1253 if (len < 24 + sizeof(mgmt->u.auth)) { 1254 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1255 "frame"); 1256 return; 1257 } 1258 1259 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1260 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1261 os_memset(&event, 0, sizeof(event)); 1262 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1263 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1264 event.auth.auth_transaction = 1265 le_to_host16(mgmt->u.auth.auth_transaction); 1266 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1267 if (len > 24 + sizeof(mgmt->u.auth)) { 1268 event.auth.ies = mgmt->u.auth.variable; 1269 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1270 } 1271 1272 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1273} 1274 1275 1276static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1277{ 1278 struct nl_msg *msg; 1279 int ret; 1280 struct nl80211_bss_info_arg arg; 1281 1282 os_memset(&arg, 0, sizeof(arg)); 1283 msg = nlmsg_alloc(); 1284 if (!msg) 1285 goto nla_put_failure; 1286 1287 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1288 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1289 1290 arg.drv = drv; 1291 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1292 msg = NULL; 1293 if (ret == 0) { 1294 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1295 "associated BSS from scan results: %u MHz", 1296 arg.assoc_freq); 1297 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; 1298 } 1299 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1300 "(%s)", ret, strerror(-ret)); 1301nla_put_failure: 1302 nlmsg_free(msg); 1303 return drv->assoc_freq; 1304} 1305 1306 1307static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1308 const u8 *frame, size_t len) 1309{ 1310 const struct ieee80211_mgmt *mgmt; 1311 union wpa_event_data event; 1312 u16 status; 1313 1314 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1315 mgmt = (const struct ieee80211_mgmt *) frame; 1316 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1317 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1318 "frame"); 1319 return; 1320 } 1321 1322 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1323 if (status != WLAN_STATUS_SUCCESS) { 1324 os_memset(&event, 0, sizeof(event)); 1325 event.assoc_reject.bssid = mgmt->bssid; 1326 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1327 event.assoc_reject.resp_ies = 1328 (u8 *) mgmt->u.assoc_resp.variable; 1329 event.assoc_reject.resp_ies_len = 1330 len - 24 - sizeof(mgmt->u.assoc_resp); 1331 } 1332 event.assoc_reject.status_code = status; 1333 1334 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1335 return; 1336 } 1337 1338 drv->associated = 1; 1339 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1340 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1341 1342 os_memset(&event, 0, sizeof(event)); 1343 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1344 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1345 event.assoc_info.resp_ies_len = 1346 len - 24 - sizeof(mgmt->u.assoc_resp); 1347 } 1348 1349 event.assoc_info.freq = drv->assoc_freq; 1350 1351 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1352} 1353 1354 1355static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1356 enum nl80211_commands cmd, struct nlattr *status, 1357 struct nlattr *addr, struct nlattr *req_ie, 1358 struct nlattr *resp_ie) 1359{ 1360 union wpa_event_data event; 1361 1362 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1363 /* 1364 * Avoid reporting two association events that would confuse 1365 * the core code. 1366 */ 1367 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1368 "when using userspace SME", cmd); 1369 return; 1370 } 1371 1372 if (cmd == NL80211_CMD_CONNECT) 1373 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1374 else if (cmd == NL80211_CMD_ROAM) 1375 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1376 1377 os_memset(&event, 0, sizeof(event)); 1378 if (cmd == NL80211_CMD_CONNECT && 1379 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1380 if (addr) 1381 event.assoc_reject.bssid = nla_data(addr); 1382 if (resp_ie) { 1383 event.assoc_reject.resp_ies = nla_data(resp_ie); 1384 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1385 } 1386 event.assoc_reject.status_code = nla_get_u16(status); 1387 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1388 return; 1389 } 1390 1391 drv->associated = 1; 1392 if (addr) { 1393 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1394 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1395 } 1396 1397 if (req_ie) { 1398 event.assoc_info.req_ies = nla_data(req_ie); 1399 event.assoc_info.req_ies_len = nla_len(req_ie); 1400 } 1401 if (resp_ie) { 1402 event.assoc_info.resp_ies = nla_data(resp_ie); 1403 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1404 } 1405 1406 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1407 1408 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1409} 1410 1411 1412static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1413 struct nlattr *reason, struct nlattr *addr, 1414 struct nlattr *by_ap) 1415{ 1416 union wpa_event_data data; 1417 unsigned int locally_generated = by_ap == NULL; 1418 1419 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1420 /* 1421 * Avoid reporting two disassociation events that could 1422 * confuse the core code. 1423 */ 1424 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1425 "event when using userspace SME"); 1426 return; 1427 } 1428 1429 if (drv->ignore_next_local_disconnect) { 1430 drv->ignore_next_local_disconnect = 0; 1431 if (locally_generated) { 1432 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1433 "event triggered during reassociation"); 1434 return; 1435 } 1436 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1437 "disconnect but got another disconnect " 1438 "event first"); 1439 } 1440 1441 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1442 nl80211_mark_disconnected(drv); 1443 os_memset(&data, 0, sizeof(data)); 1444 if (reason) 1445 data.deauth_info.reason_code = nla_get_u16(reason); 1446 data.deauth_info.locally_generated = by_ap == NULL; 1447 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1448} 1449 1450 1451static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1452 struct nlattr *freq, struct nlattr *type) 1453{ 1454 union wpa_event_data data; 1455 int ht_enabled = 1; 1456 int chan_offset = 0; 1457 1458 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1459 1460 if (!freq || !type) 1461 return; 1462 1463 switch (nla_get_u32(type)) { 1464 case NL80211_CHAN_NO_HT: 1465 ht_enabled = 0; 1466 break; 1467 case NL80211_CHAN_HT20: 1468 break; 1469 case NL80211_CHAN_HT40PLUS: 1470 chan_offset = 1; 1471 break; 1472 case NL80211_CHAN_HT40MINUS: 1473 chan_offset = -1; 1474 break; 1475 } 1476 1477 data.ch_switch.freq = nla_get_u32(freq); 1478 data.ch_switch.ht_enabled = ht_enabled; 1479 data.ch_switch.ch_offset = chan_offset; 1480 1481 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1482} 1483 1484 1485static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1486 enum nl80211_commands cmd, struct nlattr *addr) 1487{ 1488 union wpa_event_data event; 1489 enum wpa_event_type ev; 1490 1491 if (nla_len(addr) != ETH_ALEN) 1492 return; 1493 1494 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1495 cmd, MAC2STR((u8 *) nla_data(addr))); 1496 1497 if (cmd == NL80211_CMD_AUTHENTICATE) 1498 ev = EVENT_AUTH_TIMED_OUT; 1499 else if (cmd == NL80211_CMD_ASSOCIATE) 1500 ev = EVENT_ASSOC_TIMED_OUT; 1501 else 1502 return; 1503 1504 os_memset(&event, 0, sizeof(event)); 1505 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1506 wpa_supplicant_event(drv->ctx, ev, &event); 1507} 1508 1509 1510static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1511 struct nlattr *freq, struct nlattr *sig, 1512 const u8 *frame, size_t len) 1513{ 1514 const struct ieee80211_mgmt *mgmt; 1515 union wpa_event_data event; 1516 u16 fc, stype; 1517 int ssi_signal = 0; 1518 1519 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1520 mgmt = (const struct ieee80211_mgmt *) frame; 1521 if (len < 24) { 1522 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1523 return; 1524 } 1525 1526 fc = le_to_host16(mgmt->frame_control); 1527 stype = WLAN_FC_GET_STYPE(fc); 1528 1529 if (sig) 1530 ssi_signal = (s32) nla_get_u32(sig); 1531 1532 os_memset(&event, 0, sizeof(event)); 1533 if (freq) { 1534 event.rx_action.freq = nla_get_u32(freq); 1535 drv->last_mgmt_freq = event.rx_action.freq; 1536 } 1537 if (stype == WLAN_FC_STYPE_ACTION) { 1538 event.rx_action.da = mgmt->da; 1539 event.rx_action.sa = mgmt->sa; 1540 event.rx_action.bssid = mgmt->bssid; 1541 event.rx_action.category = mgmt->u.action.category; 1542 event.rx_action.data = &mgmt->u.action.category + 1; 1543 event.rx_action.len = frame + len - event.rx_action.data; 1544 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1545 } else { 1546 event.rx_mgmt.frame = frame; 1547 event.rx_mgmt.frame_len = len; 1548 event.rx_mgmt.ssi_signal = ssi_signal; 1549 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1550 } 1551} 1552 1553 1554static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1555 struct nlattr *cookie, const u8 *frame, 1556 size_t len, struct nlattr *ack) 1557{ 1558 union wpa_event_data event; 1559 const struct ieee80211_hdr *hdr; 1560 u16 fc; 1561 1562 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1563 if (!is_ap_interface(drv->nlmode)) { 1564 u64 cookie_val; 1565 1566 if (!cookie) 1567 return; 1568 1569 cookie_val = nla_get_u64(cookie); 1570 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1571 " cookie=0%llx%s (ack=%d)", 1572 (long long unsigned int) cookie_val, 1573 cookie_val == drv->send_action_cookie ? 1574 " (match)" : " (unknown)", ack != NULL); 1575 if (cookie_val != drv->send_action_cookie) 1576 return; 1577 } 1578 1579 hdr = (const struct ieee80211_hdr *) frame; 1580 fc = le_to_host16(hdr->frame_control); 1581 1582 os_memset(&event, 0, sizeof(event)); 1583 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1584 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1585 event.tx_status.dst = hdr->addr1; 1586 event.tx_status.data = frame; 1587 event.tx_status.data_len = len; 1588 event.tx_status.ack = ack != NULL; 1589 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1590} 1591 1592 1593static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1594 enum wpa_event_type type, 1595 const u8 *frame, size_t len) 1596{ 1597 const struct ieee80211_mgmt *mgmt; 1598 union wpa_event_data event; 1599 const u8 *bssid = NULL; 1600 u16 reason_code = 0; 1601 1602 if (type == EVENT_DEAUTH) 1603 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1604 else 1605 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1606 1607 mgmt = (const struct ieee80211_mgmt *) frame; 1608 if (len >= 24) { 1609 bssid = mgmt->bssid; 1610 1611 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1612 !drv->associated && 1613 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1614 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1615 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1616 /* 1617 * Avoid issues with some roaming cases where 1618 * disconnection event for the old AP may show up after 1619 * we have started connection with the new AP. 1620 */ 1621 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1622 MAC2STR(bssid), 1623 MAC2STR(drv->auth_attempt_bssid)); 1624 return; 1625 } 1626 1627 if (drv->associated != 0 && 1628 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1629 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1630 /* 1631 * We have presumably received this deauth as a 1632 * response to a clear_state_mismatch() outgoing 1633 * deauth. Don't let it take us offline! 1634 */ 1635 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1636 "from Unknown BSSID " MACSTR " -- ignoring", 1637 MAC2STR(bssid)); 1638 return; 1639 } 1640 } 1641 1642 nl80211_mark_disconnected(drv); 1643 os_memset(&event, 0, sizeof(event)); 1644 1645 /* Note: Same offset for Reason Code in both frame subtypes */ 1646 if (len >= 24 + sizeof(mgmt->u.deauth)) 1647 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1648 1649 if (type == EVENT_DISASSOC) { 1650 event.disassoc_info.locally_generated = 1651 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1652 event.disassoc_info.addr = bssid; 1653 event.disassoc_info.reason_code = reason_code; 1654 if (frame + len > mgmt->u.disassoc.variable) { 1655 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1656 event.disassoc_info.ie_len = frame + len - 1657 mgmt->u.disassoc.variable; 1658 } 1659 } else { 1660 event.deauth_info.locally_generated = 1661 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1662 event.deauth_info.addr = bssid; 1663 event.deauth_info.reason_code = reason_code; 1664 if (frame + len > mgmt->u.deauth.variable) { 1665 event.deauth_info.ie = mgmt->u.deauth.variable; 1666 event.deauth_info.ie_len = frame + len - 1667 mgmt->u.deauth.variable; 1668 } 1669 } 1670 1671 wpa_supplicant_event(drv->ctx, type, &event); 1672} 1673 1674 1675static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1676 enum wpa_event_type type, 1677 const u8 *frame, size_t len) 1678{ 1679 const struct ieee80211_mgmt *mgmt; 1680 union wpa_event_data event; 1681 u16 reason_code = 0; 1682 1683 if (type == EVENT_UNPROT_DEAUTH) 1684 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1685 else 1686 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1687 1688 if (len < 24) 1689 return; 1690 1691 mgmt = (const struct ieee80211_mgmt *) frame; 1692 1693 os_memset(&event, 0, sizeof(event)); 1694 /* Note: Same offset for Reason Code in both frame subtypes */ 1695 if (len >= 24 + sizeof(mgmt->u.deauth)) 1696 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1697 1698 if (type == EVENT_UNPROT_DISASSOC) { 1699 event.unprot_disassoc.sa = mgmt->sa; 1700 event.unprot_disassoc.da = mgmt->da; 1701 event.unprot_disassoc.reason_code = reason_code; 1702 } else { 1703 event.unprot_deauth.sa = mgmt->sa; 1704 event.unprot_deauth.da = mgmt->da; 1705 event.unprot_deauth.reason_code = reason_code; 1706 } 1707 1708 wpa_supplicant_event(drv->ctx, type, &event); 1709} 1710 1711 1712static void mlme_event(struct i802_bss *bss, 1713 enum nl80211_commands cmd, struct nlattr *frame, 1714 struct nlattr *addr, struct nlattr *timed_out, 1715 struct nlattr *freq, struct nlattr *ack, 1716 struct nlattr *cookie, struct nlattr *sig) 1717{ 1718 struct wpa_driver_nl80211_data *drv = bss->drv; 1719 const u8 *data; 1720 size_t len; 1721 1722 if (timed_out && addr) { 1723 mlme_timeout_event(drv, cmd, addr); 1724 return; 1725 } 1726 1727 if (frame == NULL) { 1728 wpa_printf(MSG_DEBUG, 1729 "nl80211: MLME event %d (%s) without frame data", 1730 cmd, nl80211_command_to_string(cmd)); 1731 return; 1732 } 1733 1734 data = nla_data(frame); 1735 len = nla_len(frame); 1736 if (len < 4 + 2 * ETH_ALEN) { 1737 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" 1738 MACSTR ") - too short", 1739 cmd, nl80211_command_to_string(cmd), bss->ifname, 1740 MAC2STR(bss->addr)); 1741 return; 1742 } 1743 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR 1744 ") A1=" MACSTR " A2=" MACSTR, cmd, 1745 nl80211_command_to_string(cmd), bss->ifname, 1746 MAC2STR(bss->addr), MAC2STR(data + 4), 1747 MAC2STR(data + 4 + ETH_ALEN)); 1748 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1749 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1750 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1751 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1752 "for foreign address", bss->ifname); 1753 return; 1754 } 1755 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1756 nla_data(frame), nla_len(frame)); 1757 1758 switch (cmd) { 1759 case NL80211_CMD_AUTHENTICATE: 1760 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1761 break; 1762 case NL80211_CMD_ASSOCIATE: 1763 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1764 break; 1765 case NL80211_CMD_DEAUTHENTICATE: 1766 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1767 nla_data(frame), nla_len(frame)); 1768 break; 1769 case NL80211_CMD_DISASSOCIATE: 1770 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1771 nla_data(frame), nla_len(frame)); 1772 break; 1773 case NL80211_CMD_FRAME: 1774 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1775 nla_len(frame)); 1776 break; 1777 case NL80211_CMD_FRAME_TX_STATUS: 1778 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1779 nla_len(frame), ack); 1780 break; 1781 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1782 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1783 nla_data(frame), nla_len(frame)); 1784 break; 1785 case NL80211_CMD_UNPROT_DISASSOCIATE: 1786 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1787 nla_data(frame), nla_len(frame)); 1788 break; 1789 default: 1790 break; 1791 } 1792} 1793 1794 1795static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1796 struct nlattr *tb[]) 1797{ 1798 union wpa_event_data data; 1799 1800 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1801 os_memset(&data, 0, sizeof(data)); 1802 if (tb[NL80211_ATTR_MAC]) { 1803 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1804 nla_data(tb[NL80211_ATTR_MAC]), 1805 nla_len(tb[NL80211_ATTR_MAC])); 1806 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1807 } 1808 if (tb[NL80211_ATTR_KEY_SEQ]) { 1809 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1810 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1811 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1812 } 1813 if (tb[NL80211_ATTR_KEY_TYPE]) { 1814 enum nl80211_key_type key_type = 1815 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1816 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1817 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1818 data.michael_mic_failure.unicast = 1; 1819 } else 1820 data.michael_mic_failure.unicast = 1; 1821 1822 if (tb[NL80211_ATTR_KEY_IDX]) { 1823 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1824 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1825 } 1826 1827 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1828} 1829 1830 1831static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1832 struct nlattr *tb[]) 1833{ 1834 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 1835 1836 if (tb[NL80211_ATTR_MAC] == NULL) { 1837 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1838 "event"); 1839 return; 1840 } 1841 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1842 1843 /* register for any AUTH message */ 1844 nl80211_register_frame(&drv->first_bss, drv->first_bss.nl_mgmt, 1845 type, NULL, 0); 1846 1847 drv->associated = 1; 1848 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1849 MAC2STR(drv->bssid)); 1850 1851 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1852} 1853 1854 1855static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1856 int cancel_event, struct nlattr *tb[]) 1857{ 1858 unsigned int freq, chan_type, duration; 1859 union wpa_event_data data; 1860 u64 cookie; 1861 1862 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1863 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1864 else 1865 freq = 0; 1866 1867 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1868 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1869 else 1870 chan_type = 0; 1871 1872 if (tb[NL80211_ATTR_DURATION]) 1873 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1874 else 1875 duration = 0; 1876 1877 if (tb[NL80211_ATTR_COOKIE]) 1878 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1879 else 1880 cookie = 0; 1881 1882 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1883 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1884 cancel_event, freq, chan_type, duration, 1885 (long long unsigned int) cookie, 1886 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1887 1888 if (cookie != drv->remain_on_chan_cookie) 1889 return; /* not for us */ 1890 1891 if (cancel_event) 1892 drv->pending_remain_on_chan = 0; 1893 1894 os_memset(&data, 0, sizeof(data)); 1895 data.remain_on_channel.freq = freq; 1896 data.remain_on_channel.duration = duration; 1897 wpa_supplicant_event(drv->ctx, cancel_event ? 1898 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1899 EVENT_REMAIN_ON_CHANNEL, &data); 1900} 1901 1902 1903static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1904 struct nlattr *tb[]) 1905{ 1906 union wpa_event_data data; 1907 1908 os_memset(&data, 0, sizeof(data)); 1909 1910 if (tb[NL80211_ATTR_IE]) { 1911 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1912 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1913 } 1914 1915 if (tb[NL80211_ATTR_IE_RIC]) { 1916 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1917 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1918 } 1919 1920 if (tb[NL80211_ATTR_MAC]) 1921 os_memcpy(data.ft_ies.target_ap, 1922 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1923 1924 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1925 MAC2STR(data.ft_ies.target_ap)); 1926 1927 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1928} 1929 1930 1931static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1932 struct nlattr *tb[]) 1933{ 1934 union wpa_event_data event; 1935 struct nlattr *nl; 1936 int rem; 1937 struct scan_info *info; 1938#define MAX_REPORT_FREQS 50 1939 int freqs[MAX_REPORT_FREQS]; 1940 int num_freqs = 0; 1941 1942 if (drv->scan_for_auth) { 1943 drv->scan_for_auth = 0; 1944 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1945 "cfg80211 BSS entry"); 1946 wpa_driver_nl80211_authenticate_retry(drv); 1947 return; 1948 } 1949 1950 os_memset(&event, 0, sizeof(event)); 1951 info = &event.scan_info; 1952 info->aborted = aborted; 1953 1954 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1955 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1956 struct wpa_driver_scan_ssid *s = 1957 &info->ssids[info->num_ssids]; 1958 s->ssid = nla_data(nl); 1959 s->ssid_len = nla_len(nl); 1960 info->num_ssids++; 1961 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1962 break; 1963 } 1964 } 1965 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1966 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1967 { 1968 freqs[num_freqs] = nla_get_u32(nl); 1969 num_freqs++; 1970 if (num_freqs == MAX_REPORT_FREQS - 1) 1971 break; 1972 } 1973 info->freqs = freqs; 1974 info->num_freqs = num_freqs; 1975 } 1976 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1977} 1978 1979 1980static int get_link_signal(struct nl_msg *msg, void *arg) 1981{ 1982 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1983 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1984 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1985 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1986 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1987 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 1988 }; 1989 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1990 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1991 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1992 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1993 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1994 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1995 }; 1996 struct wpa_signal_info *sig_change = arg; 1997 1998 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1999 genlmsg_attrlen(gnlh, 0), NULL); 2000 if (!tb[NL80211_ATTR_STA_INFO] || 2001 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 2002 tb[NL80211_ATTR_STA_INFO], policy)) 2003 return NL_SKIP; 2004 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 2005 return NL_SKIP; 2006 2007 sig_change->current_signal = 2008 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 2009 2010 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 2011 sig_change->avg_signal = 2012 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 2013 else 2014 sig_change->avg_signal = 0; 2015 2016 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 2017 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 2018 sinfo[NL80211_STA_INFO_TX_BITRATE], 2019 rate_policy)) { 2020 sig_change->current_txrate = 0; 2021 } else { 2022 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 2023 sig_change->current_txrate = 2024 nla_get_u16(rinfo[ 2025 NL80211_RATE_INFO_BITRATE]) * 100; 2026 } 2027 } 2028 } 2029 2030 return NL_SKIP; 2031} 2032 2033 2034static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 2035 struct wpa_signal_info *sig) 2036{ 2037 struct nl_msg *msg; 2038 2039 sig->current_signal = -9999; 2040 sig->current_txrate = 0; 2041 2042 msg = nlmsg_alloc(); 2043 if (!msg) 2044 return -ENOMEM; 2045 2046 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 2047 2048 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2049 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 2050 2051 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 2052 nla_put_failure: 2053 nlmsg_free(msg); 2054 return -ENOBUFS; 2055} 2056 2057 2058static int get_link_noise(struct nl_msg *msg, void *arg) 2059{ 2060 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2061 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2062 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2063 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2064 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2065 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2066 }; 2067 struct wpa_signal_info *sig_change = arg; 2068 2069 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2070 genlmsg_attrlen(gnlh, 0), NULL); 2071 2072 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2073 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 2074 return NL_SKIP; 2075 } 2076 2077 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2078 tb[NL80211_ATTR_SURVEY_INFO], 2079 survey_policy)) { 2080 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 2081 "attributes!"); 2082 return NL_SKIP; 2083 } 2084 2085 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2086 return NL_SKIP; 2087 2088 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2089 sig_change->frequency) 2090 return NL_SKIP; 2091 2092 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2093 return NL_SKIP; 2094 2095 sig_change->current_noise = 2096 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2097 2098 return NL_SKIP; 2099} 2100 2101 2102static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 2103 struct wpa_signal_info *sig_change) 2104{ 2105 struct nl_msg *msg; 2106 2107 sig_change->current_noise = 9999; 2108 sig_change->frequency = drv->assoc_freq; 2109 2110 msg = nlmsg_alloc(); 2111 if (!msg) 2112 return -ENOMEM; 2113 2114 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2115 2116 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2117 2118 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 2119 nla_put_failure: 2120 nlmsg_free(msg); 2121 return -ENOBUFS; 2122} 2123 2124 2125static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 2126{ 2127 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2128 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2129 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 2130 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 2131 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 2132 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 2133 }; 2134 struct wpa_scan_results *scan_results = arg; 2135 struct wpa_scan_res *scan_res; 2136 size_t i; 2137 2138 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2139 genlmsg_attrlen(gnlh, 0), NULL); 2140 2141 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 2142 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 2143 return NL_SKIP; 2144 } 2145 2146 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 2147 tb[NL80211_ATTR_SURVEY_INFO], 2148 survey_policy)) { 2149 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 2150 "attributes"); 2151 return NL_SKIP; 2152 } 2153 2154 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 2155 return NL_SKIP; 2156 2157 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 2158 return NL_SKIP; 2159 2160 for (i = 0; i < scan_results->num; ++i) { 2161 scan_res = scan_results->res[i]; 2162 if (!scan_res) 2163 continue; 2164 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 2165 scan_res->freq) 2166 continue; 2167 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 2168 continue; 2169 scan_res->noise = (s8) 2170 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 2171 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 2172 } 2173 2174 return NL_SKIP; 2175} 2176 2177 2178static int nl80211_get_noise_for_scan_results( 2179 struct wpa_driver_nl80211_data *drv, 2180 struct wpa_scan_results *scan_res) 2181{ 2182 struct nl_msg *msg; 2183 2184 msg = nlmsg_alloc(); 2185 if (!msg) 2186 return -ENOMEM; 2187 2188 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 2189 2190 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 2191 2192 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 2193 scan_res); 2194 nla_put_failure: 2195 nlmsg_free(msg); 2196 return -ENOBUFS; 2197} 2198 2199 2200static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 2201 struct nlattr *tb[]) 2202{ 2203 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 2204 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 2205 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 2206 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 2207 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 2208 }; 2209 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 2210 enum nl80211_cqm_rssi_threshold_event event; 2211 union wpa_event_data ed; 2212 struct wpa_signal_info sig; 2213 int res; 2214 2215 if (tb[NL80211_ATTR_CQM] == NULL || 2216 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2217 cqm_policy)) { 2218 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2219 return; 2220 } 2221 2222 os_memset(&ed, 0, sizeof(ed)); 2223 2224 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2225 if (!tb[NL80211_ATTR_MAC]) 2226 return; 2227 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2228 ETH_ALEN); 2229 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2230 return; 2231 } 2232 2233 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2234 return; 2235 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2236 2237 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2238 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2239 "event: RSSI high"); 2240 ed.signal_change.above_threshold = 1; 2241 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2242 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2243 "event: RSSI low"); 2244 ed.signal_change.above_threshold = 0; 2245 } else 2246 return; 2247 2248 res = nl80211_get_link_signal(drv, &sig); 2249 if (res == 0) { 2250 ed.signal_change.current_signal = sig.current_signal; 2251 ed.signal_change.current_txrate = sig.current_txrate; 2252 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2253 sig.current_signal, sig.current_txrate); 2254 } 2255 2256 res = nl80211_get_link_noise(drv, &sig); 2257 if (res == 0) { 2258 ed.signal_change.current_noise = sig.current_noise; 2259 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2260 sig.current_noise); 2261 } 2262 2263 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2264} 2265 2266 2267static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2268 struct nlattr **tb) 2269{ 2270 u8 *addr; 2271 union wpa_event_data data; 2272 2273 if (tb[NL80211_ATTR_MAC] == NULL) 2274 return; 2275 addr = nla_data(tb[NL80211_ATTR_MAC]); 2276 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2277 2278 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2279 u8 *ies = NULL; 2280 size_t ies_len = 0; 2281 if (tb[NL80211_ATTR_IE]) { 2282 ies = nla_data(tb[NL80211_ATTR_IE]); 2283 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2284 } 2285 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2286 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2287 return; 2288 } 2289 2290 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2291 return; 2292 2293 os_memset(&data, 0, sizeof(data)); 2294 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2295 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2296} 2297 2298 2299static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2300 struct nlattr **tb) 2301{ 2302 u8 *addr; 2303 union wpa_event_data data; 2304 2305 if (tb[NL80211_ATTR_MAC] == NULL) 2306 return; 2307 addr = nla_data(tb[NL80211_ATTR_MAC]); 2308 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2309 MAC2STR(addr)); 2310 2311 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2312 drv_event_disassoc(drv->ctx, addr); 2313 return; 2314 } 2315 2316 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2317 return; 2318 2319 os_memset(&data, 0, sizeof(data)); 2320 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2321 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2322} 2323 2324 2325static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2326 struct nlattr **tb) 2327{ 2328 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2329 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2330 [NL80211_REKEY_DATA_KEK] = { 2331 .minlen = NL80211_KEK_LEN, 2332 .maxlen = NL80211_KEK_LEN, 2333 }, 2334 [NL80211_REKEY_DATA_KCK] = { 2335 .minlen = NL80211_KCK_LEN, 2336 .maxlen = NL80211_KCK_LEN, 2337 }, 2338 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2339 .minlen = NL80211_REPLAY_CTR_LEN, 2340 .maxlen = NL80211_REPLAY_CTR_LEN, 2341 }, 2342 }; 2343 union wpa_event_data data; 2344 2345 if (!tb[NL80211_ATTR_MAC]) 2346 return; 2347 if (!tb[NL80211_ATTR_REKEY_DATA]) 2348 return; 2349 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2350 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2351 return; 2352 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2353 return; 2354 2355 os_memset(&data, 0, sizeof(data)); 2356 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2357 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2358 MAC2STR(data.driver_gtk_rekey.bssid)); 2359 data.driver_gtk_rekey.replay_ctr = 2360 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2361 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2362 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2363 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2364} 2365 2366 2367static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2368 struct nlattr **tb) 2369{ 2370 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2371 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2372 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2373 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2374 .minlen = ETH_ALEN, 2375 .maxlen = ETH_ALEN, 2376 }, 2377 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2378 }; 2379 union wpa_event_data data; 2380 2381 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2382 2383 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2384 return; 2385 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2386 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2387 return; 2388 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2389 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2390 return; 2391 2392 os_memset(&data, 0, sizeof(data)); 2393 os_memcpy(data.pmkid_candidate.bssid, 2394 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2395 data.pmkid_candidate.index = 2396 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2397 data.pmkid_candidate.preauth = 2398 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2399 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2400} 2401 2402 2403static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2404 struct nlattr **tb) 2405{ 2406 union wpa_event_data data; 2407 2408 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2409 2410 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2411 return; 2412 2413 os_memset(&data, 0, sizeof(data)); 2414 os_memcpy(data.client_poll.addr, 2415 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2416 2417 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2418} 2419 2420 2421static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2422 struct nlattr **tb) 2423{ 2424 union wpa_event_data data; 2425 2426 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2427 2428 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2429 return; 2430 2431 os_memset(&data, 0, sizeof(data)); 2432 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2433 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2434 case NL80211_TDLS_SETUP: 2435 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2436 MACSTR, MAC2STR(data.tdls.peer)); 2437 data.tdls.oper = TDLS_REQUEST_SETUP; 2438 break; 2439 case NL80211_TDLS_TEARDOWN: 2440 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2441 MACSTR, MAC2STR(data.tdls.peer)); 2442 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2443 break; 2444 default: 2445 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2446 "event"); 2447 return; 2448 } 2449 if (tb[NL80211_ATTR_REASON_CODE]) { 2450 data.tdls.reason_code = 2451 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2452 } 2453 2454 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2455} 2456 2457 2458static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, 2459 struct nlattr **tb) 2460{ 2461 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); 2462} 2463 2464 2465static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2466 struct nlattr **tb) 2467{ 2468 union wpa_event_data data; 2469 u32 reason; 2470 2471 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2472 2473 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2474 return; 2475 2476 os_memset(&data, 0, sizeof(data)); 2477 os_memcpy(data.connect_failed_reason.addr, 2478 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2479 2480 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2481 switch (reason) { 2482 case NL80211_CONN_FAIL_MAX_CLIENTS: 2483 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2484 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2485 break; 2486 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2487 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2488 " tried to connect", 2489 MAC2STR(data.connect_failed_reason.addr)); 2490 data.connect_failed_reason.code = BLOCKED_CLIENT; 2491 break; 2492 default: 2493 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2494 "%u", reason); 2495 return; 2496 } 2497 2498 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2499} 2500 2501 2502static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2503 struct nlattr **tb) 2504{ 2505 union wpa_event_data data; 2506 enum nl80211_radar_event event_type; 2507 2508 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2509 return; 2510 2511 os_memset(&data, 0, sizeof(data)); 2512 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2513 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2514 2515 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2516 data.dfs_event.freq); 2517 2518 switch (event_type) { 2519 case NL80211_RADAR_DETECTED: 2520 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2521 break; 2522 case NL80211_RADAR_CAC_FINISHED: 2523 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2524 break; 2525 case NL80211_RADAR_CAC_ABORTED: 2526 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2527 break; 2528 case NL80211_RADAR_NOP_FINISHED: 2529 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2530 break; 2531 default: 2532 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2533 "received", event_type); 2534 break; 2535 } 2536} 2537 2538 2539static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2540 int wds) 2541{ 2542 struct wpa_driver_nl80211_data *drv = bss->drv; 2543 union wpa_event_data event; 2544 2545 if (!tb[NL80211_ATTR_MAC]) 2546 return; 2547 2548 os_memset(&event, 0, sizeof(event)); 2549 event.rx_from_unknown.bssid = bss->addr; 2550 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2551 event.rx_from_unknown.wds = wds; 2552 2553 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2554} 2555 2556 2557static void do_process_drv_event(struct i802_bss *bss, int cmd, 2558 struct nlattr **tb) 2559{ 2560 struct wpa_driver_nl80211_data *drv = bss->drv; 2561 2562 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", 2563 cmd, nl80211_command_to_string(cmd), bss->ifname); 2564 2565 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2566 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2567 cmd == NL80211_CMD_SCAN_ABORTED)) { 2568 wpa_driver_nl80211_set_mode(&drv->first_bss, 2569 drv->ap_scan_as_station); 2570 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2571 } 2572 2573 switch (cmd) { 2574 case NL80211_CMD_TRIGGER_SCAN: 2575 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2576 break; 2577 case NL80211_CMD_START_SCHED_SCAN: 2578 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2579 break; 2580 case NL80211_CMD_SCHED_SCAN_STOPPED: 2581 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2582 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2583 break; 2584 case NL80211_CMD_NEW_SCAN_RESULTS: 2585 wpa_dbg(drv->ctx, MSG_DEBUG, 2586 "nl80211: New scan results available"); 2587 drv->scan_complete_events = 1; 2588 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2589 drv->ctx); 2590 send_scan_event(drv, 0, tb); 2591 break; 2592 case NL80211_CMD_SCHED_SCAN_RESULTS: 2593 wpa_dbg(drv->ctx, MSG_DEBUG, 2594 "nl80211: New sched scan results available"); 2595 send_scan_event(drv, 0, tb); 2596 break; 2597 case NL80211_CMD_SCAN_ABORTED: 2598 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2599 /* 2600 * Need to indicate that scan results are available in order 2601 * not to make wpa_supplicant stop its scanning. 2602 */ 2603 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2604 drv->ctx); 2605 send_scan_event(drv, 1, tb); 2606 break; 2607 case NL80211_CMD_AUTHENTICATE: 2608 case NL80211_CMD_ASSOCIATE: 2609 case NL80211_CMD_DEAUTHENTICATE: 2610 case NL80211_CMD_DISASSOCIATE: 2611 case NL80211_CMD_FRAME_TX_STATUS: 2612 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2613 case NL80211_CMD_UNPROT_DISASSOCIATE: 2614 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2615 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2616 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2617 tb[NL80211_ATTR_COOKIE], 2618 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2619 break; 2620 case NL80211_CMD_CONNECT: 2621 case NL80211_CMD_ROAM: 2622 mlme_event_connect(drv, cmd, 2623 tb[NL80211_ATTR_STATUS_CODE], 2624 tb[NL80211_ATTR_MAC], 2625 tb[NL80211_ATTR_REQ_IE], 2626 tb[NL80211_ATTR_RESP_IE]); 2627 break; 2628 case NL80211_CMD_CH_SWITCH_NOTIFY: 2629 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2630 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2631 break; 2632 case NL80211_CMD_DISCONNECT: 2633 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2634 tb[NL80211_ATTR_MAC], 2635 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2636 break; 2637 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2638 mlme_event_michael_mic_failure(bss, tb); 2639 break; 2640 case NL80211_CMD_JOIN_IBSS: 2641 mlme_event_join_ibss(drv, tb); 2642 break; 2643 case NL80211_CMD_REMAIN_ON_CHANNEL: 2644 mlme_event_remain_on_channel(drv, 0, tb); 2645 break; 2646 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2647 mlme_event_remain_on_channel(drv, 1, tb); 2648 break; 2649 case NL80211_CMD_NOTIFY_CQM: 2650 nl80211_cqm_event(drv, tb); 2651 break; 2652 case NL80211_CMD_REG_CHANGE: 2653 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2654 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2655 NULL); 2656 break; 2657 case NL80211_CMD_REG_BEACON_HINT: 2658 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2659 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2660 NULL); 2661 break; 2662 case NL80211_CMD_NEW_STATION: 2663 nl80211_new_station_event(drv, tb); 2664 break; 2665 case NL80211_CMD_DEL_STATION: 2666 nl80211_del_station_event(drv, tb); 2667 break; 2668 case NL80211_CMD_SET_REKEY_OFFLOAD: 2669 nl80211_rekey_offload_event(drv, tb); 2670 break; 2671 case NL80211_CMD_PMKSA_CANDIDATE: 2672 nl80211_pmksa_candidate_event(drv, tb); 2673 break; 2674 case NL80211_CMD_PROBE_CLIENT: 2675 nl80211_client_probe_event(drv, tb); 2676 break; 2677 case NL80211_CMD_TDLS_OPER: 2678 nl80211_tdls_oper_event(drv, tb); 2679 break; 2680 case NL80211_CMD_CONN_FAILED: 2681 nl80211_connect_failed_event(drv, tb); 2682 break; 2683 case NL80211_CMD_FT_EVENT: 2684 mlme_event_ft_event(drv, tb); 2685 break; 2686 case NL80211_CMD_RADAR_DETECT: 2687 nl80211_radar_event(drv, tb); 2688 break; 2689 case NL80211_CMD_STOP_AP: 2690 nl80211_stop_ap(drv, tb); 2691 break; 2692 default: 2693 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2694 "(cmd=%d)", cmd); 2695 break; 2696 } 2697} 2698 2699 2700static int process_drv_event(struct nl_msg *msg, void *arg) 2701{ 2702 struct wpa_driver_nl80211_data *drv = arg; 2703 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2704 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2705 struct i802_bss *bss; 2706 int ifidx = -1; 2707 2708 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2709 genlmsg_attrlen(gnlh, 0), NULL); 2710 2711 if (tb[NL80211_ATTR_IFINDEX]) { 2712 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2713 2714 for (bss = &drv->first_bss; bss; bss = bss->next) 2715 if (ifidx == -1 || ifidx == bss->ifindex) { 2716 do_process_drv_event(bss, gnlh->cmd, tb); 2717 return NL_SKIP; 2718 } 2719 wpa_printf(MSG_DEBUG, 2720 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", 2721 gnlh->cmd, ifidx); 2722 } else if (tb[NL80211_ATTR_WDEV]) { 2723 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2724 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); 2725 for (bss = &drv->first_bss; bss; bss = bss->next) { 2726 if (bss->wdev_id_set && wdev_id == bss->wdev_id) { 2727 do_process_drv_event(bss, gnlh->cmd, tb); 2728 return NL_SKIP; 2729 } 2730 } 2731 wpa_printf(MSG_DEBUG, 2732 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", 2733 gnlh->cmd, (long long unsigned int) wdev_id); 2734 } 2735 2736 return NL_SKIP; 2737} 2738 2739 2740static int process_global_event(struct nl_msg *msg, void *arg) 2741{ 2742 struct nl80211_global *global = arg; 2743 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2744 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2745 struct wpa_driver_nl80211_data *drv, *tmp; 2746 int ifidx = -1; 2747 struct i802_bss *bss; 2748 u64 wdev_id = 0; 2749 int wdev_id_set = 0; 2750 2751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2752 genlmsg_attrlen(gnlh, 0), NULL); 2753 2754 if (tb[NL80211_ATTR_IFINDEX]) 2755 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2756 else if (tb[NL80211_ATTR_WDEV]) { 2757 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 2758 wdev_id_set = 1; 2759 } 2760 2761 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2762 struct wpa_driver_nl80211_data, list) { 2763 for (bss = &drv->first_bss; bss; bss = bss->next) { 2764 if ((ifidx == -1 && !wdev_id_set) || 2765 ifidx == bss->ifindex || 2766 (wdev_id_set && bss->wdev_id_set && 2767 wdev_id == bss->wdev_id)) { 2768 do_process_drv_event(bss, gnlh->cmd, tb); 2769 return NL_SKIP; 2770 } 2771 } 2772 } 2773 2774 return NL_SKIP; 2775} 2776 2777 2778static int process_bss_event(struct nl_msg *msg, void *arg) 2779{ 2780 struct i802_bss *bss = arg; 2781 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2782 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2783 2784 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2785 genlmsg_attrlen(gnlh, 0), NULL); 2786 2787 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", 2788 gnlh->cmd, nl80211_command_to_string(gnlh->cmd), 2789 bss->ifname); 2790 2791 switch (gnlh->cmd) { 2792 case NL80211_CMD_FRAME: 2793 case NL80211_CMD_FRAME_TX_STATUS: 2794 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2795 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2796 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2797 tb[NL80211_ATTR_COOKIE], 2798 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2799 break; 2800 case NL80211_CMD_UNEXPECTED_FRAME: 2801 nl80211_spurious_frame(bss, tb, 0); 2802 break; 2803 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2804 nl80211_spurious_frame(bss, tb, 1); 2805 break; 2806 default: 2807 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2808 "(cmd=%d)", gnlh->cmd); 2809 break; 2810 } 2811 2812 return NL_SKIP; 2813} 2814 2815 2816static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2817 void *handle) 2818{ 2819 struct nl_cb *cb = eloop_ctx; 2820 2821 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2822 2823 nl_recvmsgs(handle, cb); 2824} 2825 2826 2827/** 2828 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2829 * @priv: driver_nl80211 private data 2830 * @alpha2_arg: country to which to switch to 2831 * Returns: 0 on success, -1 on failure 2832 * 2833 * This asks nl80211 to set the regulatory domain for given 2834 * country ISO / IEC alpha2. 2835 */ 2836static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2837{ 2838 struct i802_bss *bss = priv; 2839 struct wpa_driver_nl80211_data *drv = bss->drv; 2840 char alpha2[3]; 2841 struct nl_msg *msg; 2842 2843 msg = nlmsg_alloc(); 2844 if (!msg) 2845 return -ENOMEM; 2846 2847 alpha2[0] = alpha2_arg[0]; 2848 alpha2[1] = alpha2_arg[1]; 2849 alpha2[2] = '\0'; 2850 2851 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2852 2853 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2854 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2855 return -EINVAL; 2856 return 0; 2857nla_put_failure: 2858 nlmsg_free(msg); 2859 return -EINVAL; 2860} 2861 2862 2863static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2864{ 2865 u32 *feat = arg; 2866 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2867 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2868 2869 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2870 genlmsg_attrlen(gnlh, 0), NULL); 2871 2872 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2873 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2874 2875 return NL_SKIP; 2876} 2877 2878 2879static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2880{ 2881 u32 feat = 0; 2882 struct nl_msg *msg; 2883 2884 msg = nlmsg_alloc(); 2885 if (!msg) 2886 goto nla_put_failure; 2887 2888 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2889 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2890 return feat; 2891 2892 msg = NULL; 2893nla_put_failure: 2894 nlmsg_free(msg); 2895 return 0; 2896} 2897 2898 2899struct wiphy_info_data { 2900 struct wpa_driver_nl80211_data *drv; 2901 struct wpa_driver_capa *capa; 2902 2903 unsigned int num_multichan_concurrent; 2904 2905 unsigned int error:1; 2906 unsigned int device_ap_sme:1; 2907 unsigned int poll_command_supported:1; 2908 unsigned int data_tx_status:1; 2909 unsigned int monitor_supported:1; 2910 unsigned int auth_supported:1; 2911 unsigned int connect_supported:1; 2912 unsigned int p2p_go_supported:1; 2913 unsigned int p2p_client_supported:1; 2914 unsigned int p2p_concurrent:1; 2915}; 2916 2917 2918static unsigned int probe_resp_offload_support(int supp_protocols) 2919{ 2920 unsigned int prot = 0; 2921 2922 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2923 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2924 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2925 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2926 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2927 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2928 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2929 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2930 2931 return prot; 2932} 2933 2934 2935static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2936 struct nlattr *tb) 2937{ 2938 struct nlattr *nl_mode; 2939 int i; 2940 2941 if (tb == NULL) 2942 return; 2943 2944 nla_for_each_nested(nl_mode, tb, i) { 2945 switch (nla_type(nl_mode)) { 2946 case NL80211_IFTYPE_AP: 2947 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2948 break; 2949 case NL80211_IFTYPE_ADHOC: 2950 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2951 break; 2952 case NL80211_IFTYPE_P2P_DEVICE: 2953 info->capa->flags |= 2954 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 2955 break; 2956 case NL80211_IFTYPE_P2P_GO: 2957 info->p2p_go_supported = 1; 2958 break; 2959 case NL80211_IFTYPE_P2P_CLIENT: 2960 info->p2p_client_supported = 1; 2961 break; 2962 case NL80211_IFTYPE_MONITOR: 2963 info->monitor_supported = 1; 2964 break; 2965 } 2966 } 2967} 2968 2969 2970static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2971 struct nlattr *nl_combi) 2972{ 2973 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2974 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2975 struct nlattr *nl_limit, *nl_mode; 2976 int err, rem_limit, rem_mode; 2977 int combination_has_p2p = 0, combination_has_mgd = 0; 2978 static struct nla_policy 2979 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2980 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2981 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2982 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2983 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2984 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 2985 }, 2986 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2987 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2988 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2989 }; 2990 2991 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2992 nl_combi, iface_combination_policy); 2993 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2994 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2995 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2996 return 0; /* broken combination */ 2997 2998 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 2999 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 3000 3001 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 3002 rem_limit) { 3003 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 3004 nl_limit, iface_limit_policy); 3005 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 3006 return 0; /* broken combination */ 3007 3008 nla_for_each_nested(nl_mode, 3009 tb_limit[NL80211_IFACE_LIMIT_TYPES], 3010 rem_mode) { 3011 int ift = nla_type(nl_mode); 3012 if (ift == NL80211_IFTYPE_P2P_GO || 3013 ift == NL80211_IFTYPE_P2P_CLIENT) 3014 combination_has_p2p = 1; 3015 if (ift == NL80211_IFTYPE_STATION) 3016 combination_has_mgd = 1; 3017 } 3018 if (combination_has_p2p && combination_has_mgd) 3019 break; 3020 } 3021 3022 if (combination_has_p2p && combination_has_mgd) { 3023 info->p2p_concurrent = 1; 3024 info->num_multichan_concurrent = 3025 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); 3026 return 1; 3027 } 3028 3029 return 0; 3030} 3031 3032 3033static void wiphy_info_iface_comb(struct wiphy_info_data *info, 3034 struct nlattr *tb) 3035{ 3036 struct nlattr *nl_combi; 3037 int rem_combi; 3038 3039 if (tb == NULL) 3040 return; 3041 3042 nla_for_each_nested(nl_combi, tb, rem_combi) { 3043 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 3044 break; 3045 } 3046} 3047 3048 3049static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 3050 struct nlattr *tb) 3051{ 3052 struct nlattr *nl_cmd; 3053 int i; 3054 3055 if (tb == NULL) 3056 return; 3057 3058 nla_for_each_nested(nl_cmd, tb, i) { 3059 switch (nla_get_u32(nl_cmd)) { 3060 case NL80211_CMD_AUTHENTICATE: 3061 info->auth_supported = 1; 3062 break; 3063 case NL80211_CMD_CONNECT: 3064 info->connect_supported = 1; 3065 break; 3066 case NL80211_CMD_START_SCHED_SCAN: 3067 info->capa->sched_scan_supported = 1; 3068 break; 3069 case NL80211_CMD_PROBE_CLIENT: 3070 info->poll_command_supported = 1; 3071 break; 3072 } 3073 } 3074} 3075 3076 3077static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 3078 struct nlattr *tb) 3079{ 3080 if (tb) 3081 capa->max_remain_on_chan = nla_get_u32(tb); 3082} 3083 3084 3085static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 3086 struct nlattr *ext_setup) 3087{ 3088 if (tdls == NULL) 3089 return; 3090 3091 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 3092 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 3093 3094 if (ext_setup) { 3095 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 3096 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 3097 } 3098} 3099 3100 3101static void wiphy_info_feature_flags(struct wiphy_info_data *info, 3102 struct nlattr *tb) 3103{ 3104 u32 flags; 3105 struct wpa_driver_capa *capa = info->capa; 3106 3107 if (tb == NULL) 3108 return; 3109 3110 flags = nla_get_u32(tb); 3111 3112 if (flags & NL80211_FEATURE_SK_TX_STATUS) 3113 info->data_tx_status = 1; 3114 3115 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 3116 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 3117 3118 if (flags & NL80211_FEATURE_SAE) 3119 capa->flags |= WPA_DRIVER_FLAGS_SAE; 3120 3121 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 3122 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 3123} 3124 3125 3126static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 3127 struct nlattr *tb) 3128{ 3129 u32 protocols; 3130 3131 if (tb == NULL) 3132 return; 3133 3134 protocols = nla_get_u32(tb); 3135 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 3136 "mode"); 3137 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 3138 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 3139} 3140 3141 3142static int wiphy_info_handler(struct nl_msg *msg, void *arg) 3143{ 3144 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 3145 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 3146 struct wiphy_info_data *info = arg; 3147 struct wpa_driver_capa *capa = info->capa; 3148 struct wpa_driver_nl80211_data *drv = info->drv; 3149 3150 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 3151 genlmsg_attrlen(gnlh, 0), NULL); 3152 3153 if (tb[NL80211_ATTR_WIPHY_NAME]) 3154 os_strncpy(drv->phyname, 3155 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), 3156 sizeof(drv->phyname)); 3157 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 3158 capa->max_scan_ssids = 3159 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 3160 3161 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 3162 capa->max_sched_scan_ssids = 3163 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 3164 3165 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 3166 capa->max_match_sets = 3167 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 3168 3169 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 3170 capa->max_acl_mac_addrs = 3171 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 3172 3173 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 3174 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 3175 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 3176 3177 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 3178 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 3179 "off-channel TX"); 3180 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 3181 } 3182 3183 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 3184 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 3185 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 3186 } 3187 3188 wiphy_info_max_roc(capa, 3189 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 3190 3191 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 3192 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 3193 3194 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 3195 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 3196 3197 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 3198 info->device_ap_sme = 1; 3199 3200 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 3201 wiphy_info_probe_resp_offload(capa, 3202 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 3203 3204 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 3205 drv->extended_capa == NULL) { 3206 drv->extended_capa = 3207 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3208 if (drv->extended_capa) { 3209 os_memcpy(drv->extended_capa, 3210 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3211 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3212 drv->extended_capa_len = 3213 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 3214 } 3215 drv->extended_capa_mask = 3216 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3217 if (drv->extended_capa_mask) { 3218 os_memcpy(drv->extended_capa_mask, 3219 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 3220 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 3221 } else { 3222 os_free(drv->extended_capa); 3223 drv->extended_capa = NULL; 3224 drv->extended_capa_len = 0; 3225 } 3226 } 3227 3228 return NL_SKIP; 3229} 3230 3231 3232static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 3233 struct wiphy_info_data *info) 3234{ 3235 u32 feat; 3236 struct nl_msg *msg; 3237 3238 os_memset(info, 0, sizeof(*info)); 3239 info->capa = &drv->capa; 3240 info->drv = drv; 3241 3242 msg = nlmsg_alloc(); 3243 if (!msg) 3244 return -1; 3245 3246 feat = get_nl80211_protocol_features(drv); 3247 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 3248 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 3249 else 3250 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 3251 3252 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 3253 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 3254 goto nla_put_failure; 3255 3256 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 3257 return -1; 3258 3259 if (info->auth_supported) 3260 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3261 else if (!info->connect_supported) { 3262 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3263 "authentication/association or connect commands"); 3264 info->error = 1; 3265 } 3266 3267 if (info->p2p_go_supported && info->p2p_client_supported) 3268 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3269 if (info->p2p_concurrent) { 3270 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3271 "interface (driver advertised support)"); 3272 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3273 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3274 } 3275 if (info->num_multichan_concurrent > 1) { 3276 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3277 "concurrent (driver advertised support)"); 3278 drv->capa.num_multichan_concurrent = 3279 info->num_multichan_concurrent; 3280 } 3281 3282 /* default to 5000 since early versions of mac80211 don't set it */ 3283 if (!drv->capa.max_remain_on_chan) 3284 drv->capa.max_remain_on_chan = 5000; 3285 3286 return 0; 3287nla_put_failure: 3288 nlmsg_free(msg); 3289 return -1; 3290} 3291 3292 3293static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3294{ 3295 struct wiphy_info_data info; 3296 if (wpa_driver_nl80211_get_info(drv, &info)) 3297 return -1; 3298 3299 if (info.error) 3300 return -1; 3301 3302 drv->has_capability = 1; 3303 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3304 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3305 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3306 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3307 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3308 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3309 WPA_DRIVER_CAPA_ENC_WEP104 | 3310 WPA_DRIVER_CAPA_ENC_TKIP | 3311 WPA_DRIVER_CAPA_ENC_CCMP; 3312 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3313 WPA_DRIVER_AUTH_SHARED | 3314 WPA_DRIVER_AUTH_LEAP; 3315 3316 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3317 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3318 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3319 3320 if (!info.device_ap_sme) { 3321 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3322 3323 /* 3324 * No AP SME is currently assumed to also indicate no AP MLME 3325 * in the driver/firmware. 3326 */ 3327 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3328 } 3329 3330 drv->device_ap_sme = info.device_ap_sme; 3331 drv->poll_command_supported = info.poll_command_supported; 3332 drv->data_tx_status = info.data_tx_status; 3333 3334#ifdef ANDROID_P2P 3335 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3336 /* Driver is new enough to support monitorless mode*/ 3337 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3338 "enough to support monitor-less mode"); 3339 drv->use_monitor = 0; 3340 } 3341#else 3342 /* 3343 * If poll command and tx status are supported, mac80211 is new enough 3344 * to have everything we need to not need monitor interfaces. 3345 */ 3346 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3347#endif 3348 3349 if (drv->device_ap_sme && drv->use_monitor) { 3350 /* 3351 * Non-mac80211 drivers may not support monitor interface. 3352 * Make sure we do not get stuck with incorrect capability here 3353 * by explicitly testing this. 3354 */ 3355 if (!info.monitor_supported) { 3356 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3357 "with device_ap_sme since no monitor mode " 3358 "support detected"); 3359 drv->use_monitor = 0; 3360 } 3361 } 3362 3363 /* 3364 * If we aren't going to use monitor interfaces, but the 3365 * driver doesn't support data TX status, we won't get TX 3366 * status for EAPOL frames. 3367 */ 3368 if (!drv->use_monitor && !info.data_tx_status) 3369 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3370 3371 return 0; 3372} 3373 3374 3375#ifdef ANDROID 3376static int android_genl_ctrl_resolve(struct nl_handle *handle, 3377 const char *name) 3378{ 3379 /* 3380 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3381 * need to work around that. 3382 */ 3383 struct nl_cache *cache = NULL; 3384 struct genl_family *nl80211 = NULL; 3385 int id = -1; 3386 3387 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3388 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3389 "netlink cache"); 3390 goto fail; 3391 } 3392 3393 nl80211 = genl_ctrl_search_by_name(cache, name); 3394 if (nl80211 == NULL) 3395 goto fail; 3396 3397 id = genl_family_get_id(nl80211); 3398 3399fail: 3400 if (nl80211) 3401 genl_family_put(nl80211); 3402 if (cache) 3403 nl_cache_free(cache); 3404 3405 return id; 3406} 3407#define genl_ctrl_resolve android_genl_ctrl_resolve 3408#endif /* ANDROID */ 3409 3410 3411static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3412{ 3413 int ret; 3414 3415 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3416 if (global->nl_cb == NULL) { 3417 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3418 "callbacks"); 3419 return -1; 3420 } 3421 3422 global->nl = nl_create_handle(global->nl_cb, "nl"); 3423 if (global->nl == NULL) 3424 goto err; 3425 3426 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3427 if (global->nl80211_id < 0) { 3428 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3429 "found"); 3430 goto err; 3431 } 3432 3433 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3434 if (global->nl_event == NULL) 3435 goto err; 3436 3437 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3438 if (ret >= 0) 3439 ret = nl_socket_add_membership(global->nl_event, ret); 3440 if (ret < 0) { 3441 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3442 "membership for scan events: %d (%s)", 3443 ret, strerror(-ret)); 3444 goto err; 3445 } 3446 3447 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3448 if (ret >= 0) 3449 ret = nl_socket_add_membership(global->nl_event, ret); 3450 if (ret < 0) { 3451 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3452 "membership for mlme events: %d (%s)", 3453 ret, strerror(-ret)); 3454 goto err; 3455 } 3456 3457 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3458 if (ret >= 0) 3459 ret = nl_socket_add_membership(global->nl_event, ret); 3460 if (ret < 0) { 3461 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3462 "membership for regulatory events: %d (%s)", 3463 ret, strerror(-ret)); 3464 /* Continue without regulatory events */ 3465 } 3466 3467 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3468 no_seq_check, NULL); 3469 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3470 process_global_event, global); 3471 3472 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3473 wpa_driver_nl80211_event_receive, 3474 global->nl_cb, global->nl_event); 3475 3476 return 0; 3477 3478err: 3479 nl_destroy_handles(&global->nl_event); 3480 nl_destroy_handles(&global->nl); 3481 nl_cb_put(global->nl_cb); 3482 global->nl_cb = NULL; 3483 return -1; 3484} 3485 3486 3487static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3488{ 3489 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3490 if (!drv->nl_cb) { 3491 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3492 return -1; 3493 } 3494 3495 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3496 no_seq_check, NULL); 3497 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3498 process_drv_event, drv); 3499 3500 return 0; 3501} 3502 3503 3504static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3505{ 3506 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3507 /* 3508 * This may be for any interface; use ifdown event to disable 3509 * interface. 3510 */ 3511} 3512 3513 3514static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3515{ 3516 struct wpa_driver_nl80211_data *drv = ctx; 3517 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3518 if (linux_set_iface_flags(drv->global->ioctl_sock, 3519 drv->first_bss.ifname, 1)) { 3520 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3521 "after rfkill unblock"); 3522 return; 3523 } 3524 /* rtnetlink ifup handler will report interface as enabled */ 3525} 3526 3527 3528static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3529 void *eloop_ctx, 3530 void *handle) 3531{ 3532 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3533 u8 data[2048]; 3534 struct msghdr msg; 3535 struct iovec entry; 3536 u8 control[512]; 3537 struct cmsghdr *cmsg; 3538 int res, found_ee = 0, found_wifi = 0, acked = 0; 3539 union wpa_event_data event; 3540 3541 memset(&msg, 0, sizeof(msg)); 3542 msg.msg_iov = &entry; 3543 msg.msg_iovlen = 1; 3544 entry.iov_base = data; 3545 entry.iov_len = sizeof(data); 3546 msg.msg_control = &control; 3547 msg.msg_controllen = sizeof(control); 3548 3549 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3550 /* if error or not fitting 802.3 header, return */ 3551 if (res < 14) 3552 return; 3553 3554 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3555 { 3556 if (cmsg->cmsg_level == SOL_SOCKET && 3557 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3558 int *ack; 3559 3560 found_wifi = 1; 3561 ack = (void *)CMSG_DATA(cmsg); 3562 acked = *ack; 3563 } 3564 3565 if (cmsg->cmsg_level == SOL_PACKET && 3566 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3567 struct sock_extended_err *err = 3568 (struct sock_extended_err *)CMSG_DATA(cmsg); 3569 3570 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3571 found_ee = 1; 3572 } 3573 } 3574 3575 if (!found_ee || !found_wifi) 3576 return; 3577 3578 memset(&event, 0, sizeof(event)); 3579 event.eapol_tx_status.dst = data; 3580 event.eapol_tx_status.data = data + 14; 3581 event.eapol_tx_status.data_len = res - 14; 3582 event.eapol_tx_status.ack = acked; 3583 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3584} 3585 3586 3587static int nl80211_init_bss(struct i802_bss *bss) 3588{ 3589 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3590 if (!bss->nl_cb) 3591 return -1; 3592 3593 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3594 no_seq_check, NULL); 3595 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3596 process_bss_event, bss); 3597 3598 return 0; 3599} 3600 3601 3602static void nl80211_destroy_bss(struct i802_bss *bss) 3603{ 3604 nl_cb_put(bss->nl_cb); 3605 bss->nl_cb = NULL; 3606} 3607 3608 3609/** 3610 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3611 * @ctx: context to be used when calling wpa_supplicant functions, 3612 * e.g., wpa_supplicant_event() 3613 * @ifname: interface name, e.g., wlan0 3614 * @global_priv: private driver global data from global_init() 3615 * Returns: Pointer to private data, %NULL on failure 3616 */ 3617static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3618 void *global_priv) 3619{ 3620 struct wpa_driver_nl80211_data *drv; 3621 struct rfkill_config *rcfg; 3622 struct i802_bss *bss; 3623 3624 if (global_priv == NULL) 3625 return NULL; 3626 drv = os_zalloc(sizeof(*drv)); 3627 if (drv == NULL) 3628 return NULL; 3629 drv->global = global_priv; 3630 drv->ctx = ctx; 3631 bss = &drv->first_bss; 3632 bss->drv = drv; 3633 bss->ctx = ctx; 3634 3635 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3636 drv->monitor_ifidx = -1; 3637 drv->monitor_sock = -1; 3638 drv->eapol_tx_sock = -1; 3639 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3640 3641 if (wpa_driver_nl80211_init_nl(drv)) { 3642 os_free(drv); 3643 return NULL; 3644 } 3645 3646 if (nl80211_init_bss(bss)) 3647 goto failed; 3648 3649 rcfg = os_zalloc(sizeof(*rcfg)); 3650 if (rcfg == NULL) 3651 goto failed; 3652 rcfg->ctx = drv; 3653 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3654 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3655 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3656 drv->rfkill = rfkill_init(rcfg); 3657 if (drv->rfkill == NULL) { 3658 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3659 os_free(rcfg); 3660 } 3661 3662 if (wpa_driver_nl80211_finish_drv_init(drv)) 3663 goto failed; 3664 3665 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3666 if (drv->eapol_tx_sock < 0) 3667 goto failed; 3668 3669 if (drv->data_tx_status) { 3670 int enabled = 1; 3671 3672 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3673 &enabled, sizeof(enabled)) < 0) { 3674 wpa_printf(MSG_DEBUG, 3675 "nl80211: wifi status sockopt failed\n"); 3676 drv->data_tx_status = 0; 3677 if (!drv->use_monitor) 3678 drv->capa.flags &= 3679 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3680 } else { 3681 eloop_register_read_sock(drv->eapol_tx_sock, 3682 wpa_driver_nl80211_handle_eapol_tx_status, 3683 drv, NULL); 3684 } 3685 } 3686 3687 if (drv->global) { 3688 dl_list_add(&drv->global->interfaces, &drv->list); 3689 drv->in_interface_list = 1; 3690 } 3691 3692 return bss; 3693 3694failed: 3695 wpa_driver_nl80211_deinit(bss); 3696 return NULL; 3697} 3698 3699 3700static int nl80211_register_frame(struct i802_bss *bss, 3701 struct nl_handle *nl_handle, 3702 u16 type, const u8 *match, size_t match_len) 3703{ 3704 struct wpa_driver_nl80211_data *drv = bss->drv; 3705 struct nl_msg *msg; 3706 int ret = -1; 3707 3708 msg = nlmsg_alloc(); 3709 if (!msg) 3710 return -1; 3711 3712 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3713 type, nl_handle); 3714 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3715 match, match_len); 3716 3717 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3718 3719 if (nl80211_set_iface_id(msg, bss) < 0) 3720 goto nla_put_failure; 3721 3722 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3723 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3724 3725 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3726 msg = NULL; 3727 if (ret) { 3728 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3729 "failed (type=%u): ret=%d (%s)", 3730 type, ret, strerror(-ret)); 3731 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3732 match, match_len); 3733 goto nla_put_failure; 3734 } 3735 ret = 0; 3736nla_put_failure: 3737 nlmsg_free(msg); 3738 return ret; 3739} 3740 3741 3742static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3743{ 3744 struct wpa_driver_nl80211_data *drv = bss->drv; 3745 3746 if (bss->nl_mgmt) { 3747 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3748 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3749 return -1; 3750 } 3751 3752 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3753 if (bss->nl_mgmt == NULL) 3754 return -1; 3755 3756 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3757 wpa_driver_nl80211_event_receive, bss->nl_cb, 3758 bss->nl_mgmt); 3759 3760 return 0; 3761} 3762 3763 3764static int nl80211_register_action_frame(struct i802_bss *bss, 3765 const u8 *match, size_t match_len) 3766{ 3767 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3768 return nl80211_register_frame(bss, bss->nl_mgmt, 3769 type, match, match_len); 3770} 3771 3772 3773static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3774{ 3775 struct wpa_driver_nl80211_data *drv = bss->drv; 3776 3777 if (nl80211_alloc_mgmt_handle(bss)) 3778 return -1; 3779 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3780 "handle %p", bss->nl_mgmt); 3781 3782#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3783 /* GAS Initial Request */ 3784 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3785 return -1; 3786 /* GAS Initial Response */ 3787 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3788 return -1; 3789 /* GAS Comeback Request */ 3790 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3791 return -1; 3792 /* GAS Comeback Response */ 3793 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3794 return -1; 3795#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3796#ifdef CONFIG_P2P 3797 /* P2P Public Action */ 3798 if (nl80211_register_action_frame(bss, 3799 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3800 6) < 0) 3801 return -1; 3802 /* P2P Action */ 3803 if (nl80211_register_action_frame(bss, 3804 (u8 *) "\x7f\x50\x6f\x9a\x09", 3805 5) < 0) 3806 return -1; 3807#endif /* CONFIG_P2P */ 3808#ifdef CONFIG_IEEE80211W 3809 /* SA Query Response */ 3810 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3811 return -1; 3812#endif /* CONFIG_IEEE80211W */ 3813#ifdef CONFIG_TDLS 3814 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3815 /* TDLS Discovery Response */ 3816 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3817 0) 3818 return -1; 3819 } 3820#endif /* CONFIG_TDLS */ 3821 3822 /* FT Action frames */ 3823 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3824 return -1; 3825 else 3826 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3827 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3828 3829 /* WNM - BSS Transition Management Request */ 3830 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3831 return -1; 3832 /* WNM-Sleep Mode Response */ 3833 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3834 return -1; 3835 3836 return 0; 3837} 3838 3839 3840static int nl80211_register_spurious_class3(struct i802_bss *bss) 3841{ 3842 struct wpa_driver_nl80211_data *drv = bss->drv; 3843 struct nl_msg *msg; 3844 int ret = -1; 3845 3846 msg = nlmsg_alloc(); 3847 if (!msg) 3848 return -1; 3849 3850 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3851 3852 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3853 3854 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3855 msg = NULL; 3856 if (ret) { 3857 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3858 "failed: ret=%d (%s)", 3859 ret, strerror(-ret)); 3860 goto nla_put_failure; 3861 } 3862 ret = 0; 3863nla_put_failure: 3864 nlmsg_free(msg); 3865 return ret; 3866} 3867 3868 3869static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3870{ 3871 static const int stypes[] = { 3872 WLAN_FC_STYPE_AUTH, 3873 WLAN_FC_STYPE_ASSOC_REQ, 3874 WLAN_FC_STYPE_REASSOC_REQ, 3875 WLAN_FC_STYPE_DISASSOC, 3876 WLAN_FC_STYPE_DEAUTH, 3877 WLAN_FC_STYPE_ACTION, 3878 WLAN_FC_STYPE_PROBE_REQ, 3879/* Beacon doesn't work as mac80211 doesn't currently allow 3880 * it, but it wouldn't really be the right thing anyway as 3881 * it isn't per interface ... maybe just dump the scan 3882 * results periodically for OLBC? 3883 */ 3884// WLAN_FC_STYPE_BEACON, 3885 }; 3886 unsigned int i; 3887 3888 if (nl80211_alloc_mgmt_handle(bss)) 3889 return -1; 3890 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3891 "handle %p", bss->nl_mgmt); 3892 3893 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3894 if (nl80211_register_frame(bss, bss->nl_mgmt, 3895 (WLAN_FC_TYPE_MGMT << 2) | 3896 (stypes[i] << 4), 3897 NULL, 0) < 0) { 3898 goto out_err; 3899 } 3900 } 3901 3902 if (nl80211_register_spurious_class3(bss)) 3903 goto out_err; 3904 3905 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3906 goto out_err; 3907 3908 return 0; 3909 3910out_err: 3911 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3912 nl_destroy_handles(&bss->nl_mgmt); 3913 return -1; 3914} 3915 3916 3917static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3918{ 3919 if (nl80211_alloc_mgmt_handle(bss)) 3920 return -1; 3921 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3922 "handle %p (device SME)", bss->nl_mgmt); 3923 3924 if (nl80211_register_frame(bss, bss->nl_mgmt, 3925 (WLAN_FC_TYPE_MGMT << 2) | 3926 (WLAN_FC_STYPE_ACTION << 4), 3927 NULL, 0) < 0) 3928 goto out_err; 3929 3930 return 0; 3931 3932out_err: 3933 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3934 nl_destroy_handles(&bss->nl_mgmt); 3935 return -1; 3936} 3937 3938 3939static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3940{ 3941 if (bss->nl_mgmt == NULL) 3942 return; 3943 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3944 "(%s)", bss->nl_mgmt, reason); 3945 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3946 nl_destroy_handles(&bss->nl_mgmt); 3947 3948 nl80211_put_wiphy_data_ap(bss); 3949} 3950 3951 3952static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3953{ 3954 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3955} 3956 3957 3958static void nl80211_del_p2pdev(struct i802_bss *bss) 3959{ 3960 struct wpa_driver_nl80211_data *drv = bss->drv; 3961 struct nl_msg *msg; 3962 int ret; 3963 3964 msg = nlmsg_alloc(); 3965 if (!msg) 3966 return; 3967 3968 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 3969 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3970 3971 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3972 msg = NULL; 3973 3974 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 3975 bss->ifname, (long long unsigned int) bss->wdev_id, 3976 strerror(ret)); 3977 3978nla_put_failure: 3979 nlmsg_free(msg); 3980} 3981 3982 3983static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 3984{ 3985 struct wpa_driver_nl80211_data *drv = bss->drv; 3986 struct nl_msg *msg; 3987 int ret = -1; 3988 3989 msg = nlmsg_alloc(); 3990 if (!msg) 3991 return -1; 3992 3993 if (start) 3994 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); 3995 else 3996 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); 3997 3998 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 3999 4000 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4001 msg = NULL; 4002 4003 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 4004 start ? "Start" : "Stop", 4005 bss->ifname, (long long unsigned int) bss->wdev_id, 4006 strerror(ret)); 4007 4008nla_put_failure: 4009 nlmsg_free(msg); 4010 return ret; 4011} 4012 4013 4014static int i802_set_iface_flags(struct i802_bss *bss, int up) 4015{ 4016 enum nl80211_iftype nlmode; 4017 4018 nlmode = nl80211_get_ifmode(bss); 4019 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4020 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 4021 bss->ifname, up); 4022 } 4023 4024 /* P2P Device has start/stop which is equivalent */ 4025 return nl80211_set_p2pdev(bss, up); 4026} 4027 4028 4029static int 4030wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 4031{ 4032#ifndef HOSTAPD 4033 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION; 4034#endif /* HOSTAPD */ 4035 struct i802_bss *bss = &drv->first_bss; 4036 int send_rfkill_event = 0; 4037 int dynamic_if; 4038 4039 drv->ifindex = if_nametoindex(bss->ifname); 4040 bss->ifindex = drv->ifindex; 4041 bss->wdev_id = drv->global->if_add_wdevid; 4042 bss->wdev_id_set = drv->global->if_add_wdevid_set; 4043 4044 dynamic_if = drv->ifindex == drv->global->if_add_ifindex; 4045 dynamic_if = dynamic_if || drv->global->if_add_wdevid_set; 4046 drv->global->if_add_wdevid_set = 0; 4047 4048 if (wpa_driver_nl80211_capa(drv)) 4049 return -1; 4050 4051 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 4052 bss->ifname, drv->phyname); 4053 4054#ifndef HOSTAPD 4055 if (dynamic_if) 4056 nlmode = nl80211_get_ifmode(bss); 4057 4058 /* 4059 * Make sure the interface starts up in station mode unless this is a 4060 * dynamically added interface (e.g., P2P) that was already configured 4061 * with proper iftype. 4062 */ 4063 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 4064 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); 4065 return -1; 4066 } 4067 drv->nlmode = nlmode; 4068 4069 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 4070 int ret = nl80211_set_p2pdev(bss, 1); 4071 if (ret < 0) 4072 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); 4073 nl80211_get_macaddr(bss); 4074 return ret; 4075 } 4076 4077 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 4078 if (rfkill_is_blocked(drv->rfkill)) { 4079 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 4080 "interface '%s' due to rfkill", 4081 bss->ifname); 4082 drv->if_disabled = 1; 4083 send_rfkill_event = 1; 4084 } else { 4085 wpa_printf(MSG_ERROR, "nl80211: Could not set " 4086 "interface '%s' UP", bss->ifname); 4087 return -1; 4088 } 4089 } 4090 4091 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 4092 1, IF_OPER_DORMANT); 4093#endif /* HOSTAPD */ 4094 4095 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 4096 bss->addr)) 4097 return -1; 4098 4099 if (send_rfkill_event) { 4100 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 4101 drv, drv->ctx); 4102 } 4103 4104 return 0; 4105} 4106 4107 4108static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 4109{ 4110 struct nl_msg *msg; 4111 4112 msg = nlmsg_alloc(); 4113 if (!msg) 4114 return -ENOMEM; 4115 4116 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 4117 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4118 4119 return send_and_recv_msgs(drv, msg, NULL, NULL); 4120 nla_put_failure: 4121 nlmsg_free(msg); 4122 return -ENOBUFS; 4123} 4124 4125 4126/** 4127 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 4128 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 4129 * 4130 * Shut down driver interface and processing of driver events. Free 4131 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 4132 */ 4133static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 4134{ 4135 struct wpa_driver_nl80211_data *drv = bss->drv; 4136 4137 bss->in_deinit = 1; 4138 if (drv->data_tx_status) 4139 eloop_unregister_read_sock(drv->eapol_tx_sock); 4140 if (drv->eapol_tx_sock >= 0) 4141 close(drv->eapol_tx_sock); 4142 4143 if (bss->nl_preq) 4144 wpa_driver_nl80211_probe_req_report(bss, 0); 4145 if (bss->added_if_into_bridge) { 4146 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 4147 bss->ifname) < 0) 4148 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4149 "interface %s from bridge %s: %s", 4150 bss->ifname, bss->brname, strerror(errno)); 4151 } 4152 if (bss->added_bridge) { 4153 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 4154 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 4155 "bridge %s: %s", 4156 bss->brname, strerror(errno)); 4157 } 4158 4159 nl80211_remove_monitor_interface(drv); 4160 4161 if (is_ap_interface(drv->nlmode)) 4162 wpa_driver_nl80211_del_beacon(drv); 4163 4164#ifdef HOSTAPD 4165 if (drv->last_freq_ht) { 4166 /* Clear HT flags from the driver */ 4167 struct hostapd_freq_params freq; 4168 os_memset(&freq, 0, sizeof(freq)); 4169 freq.freq = drv->last_freq; 4170 wpa_driver_nl80211_set_freq(bss, &freq); 4171 } 4172 4173 if (drv->eapol_sock >= 0) { 4174 eloop_unregister_read_sock(drv->eapol_sock); 4175 close(drv->eapol_sock); 4176 } 4177 4178 if (drv->if_indices != drv->default_if_indices) 4179 os_free(drv->if_indices); 4180#endif /* HOSTAPD */ 4181 4182 if (drv->disabled_11b_rates) 4183 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 4184 4185 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 4186 IF_OPER_UP); 4187 rfkill_deinit(drv->rfkill); 4188 4189 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4190 4191 (void) i802_set_iface_flags(bss, 0); 4192 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 4193 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 4194 } else { 4195 nl80211_mgmt_unsubscribe(bss, "deinit"); 4196 nl80211_del_p2pdev(bss); 4197 } 4198 nl_cb_put(drv->nl_cb); 4199 4200 nl80211_destroy_bss(&drv->first_bss); 4201 4202 os_free(drv->filter_ssids); 4203 4204 os_free(drv->auth_ie); 4205 4206 if (drv->in_interface_list) 4207 dl_list_del(&drv->list); 4208 4209 os_free(drv->extended_capa); 4210 os_free(drv->extended_capa_mask); 4211 os_free(drv); 4212} 4213 4214 4215/** 4216 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 4217 * @eloop_ctx: Driver private data 4218 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 4219 * 4220 * This function can be used as registered timeout when starting a scan to 4221 * generate a scan completed event if the driver does not report this. 4222 */ 4223static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 4224{ 4225 struct wpa_driver_nl80211_data *drv = eloop_ctx; 4226 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 4227 wpa_driver_nl80211_set_mode(&drv->first_bss, 4228 drv->ap_scan_as_station); 4229 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 4230 } 4231 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 4232 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 4233} 4234 4235 4236static struct nl_msg * 4237nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 4238 struct wpa_driver_scan_params *params, u64 *wdev_id) 4239{ 4240 struct nl_msg *msg; 4241 size_t i; 4242 4243 msg = nlmsg_alloc(); 4244 if (!msg) 4245 return NULL; 4246 4247 nl80211_cmd(drv, msg, 0, cmd); 4248 4249 if (!wdev_id) 4250 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4251 else 4252 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); 4253 4254 if (params->num_ssids) { 4255 struct nlattr *ssids; 4256 4257 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 4258 if (ssids == NULL) 4259 goto fail; 4260 for (i = 0; i < params->num_ssids; i++) { 4261 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 4262 params->ssids[i].ssid, 4263 params->ssids[i].ssid_len); 4264 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 4265 params->ssids[i].ssid) < 0) 4266 goto fail; 4267 } 4268 nla_nest_end(msg, ssids); 4269 } 4270 4271 if (params->extra_ies) { 4272 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 4273 params->extra_ies, params->extra_ies_len); 4274 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 4275 params->extra_ies) < 0) 4276 goto fail; 4277 } 4278 4279 if (params->freqs) { 4280 struct nlattr *freqs; 4281 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 4282 if (freqs == NULL) 4283 goto fail; 4284 for (i = 0; params->freqs[i]; i++) { 4285 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 4286 "MHz", params->freqs[i]); 4287 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 4288 goto fail; 4289 } 4290 nla_nest_end(msg, freqs); 4291 } 4292 4293 os_free(drv->filter_ssids); 4294 drv->filter_ssids = params->filter_ssids; 4295 params->filter_ssids = NULL; 4296 drv->num_filter_ssids = params->num_filter_ssids; 4297 4298 return msg; 4299 4300fail: 4301nla_put_failure: 4302 nlmsg_free(msg); 4303 return NULL; 4304} 4305 4306 4307/** 4308 * wpa_driver_nl80211_scan - Request the driver to initiate scan 4309 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 4310 * @params: Scan parameters 4311 * Returns: 0 on success, -1 on failure 4312 */ 4313static int wpa_driver_nl80211_scan(struct i802_bss *bss, 4314 struct wpa_driver_scan_params *params) 4315{ 4316 struct wpa_driver_nl80211_data *drv = bss->drv; 4317 int ret = -1, timeout; 4318 struct nl_msg *msg = NULL; 4319 4320 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 4321 drv->scan_for_auth = 0; 4322 4323 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, 4324 bss->wdev_id_set ? &bss->wdev_id : NULL); 4325 if (!msg) 4326 return -1; 4327 4328 if (params->p2p_probe) { 4329 struct nlattr *rates; 4330 4331 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4332 4333 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4334 if (rates == NULL) 4335 goto nla_put_failure; 4336 4337 /* 4338 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4339 * by masking out everything else apart from the OFDM rates 6, 4340 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4341 * rates are left enabled. 4342 */ 4343 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4344 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4345 nla_nest_end(msg, rates); 4346 4347 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4348 } 4349 4350 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4351 msg = NULL; 4352 if (ret) { 4353 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4354 "(%s)", ret, strerror(-ret)); 4355#ifdef HOSTAPD 4356 if (is_ap_interface(drv->nlmode)) { 4357 /* 4358 * mac80211 does not allow scan requests in AP mode, so 4359 * try to do this in station mode. 4360 */ 4361 if (wpa_driver_nl80211_set_mode( 4362 bss, NL80211_IFTYPE_STATION)) 4363 goto nla_put_failure; 4364 4365 if (wpa_driver_nl80211_scan(bss, params)) { 4366 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4367 goto nla_put_failure; 4368 } 4369 4370 /* Restore AP mode when processing scan results */ 4371 drv->ap_scan_as_station = drv->nlmode; 4372 ret = 0; 4373 } else 4374 goto nla_put_failure; 4375#else /* HOSTAPD */ 4376 goto nla_put_failure; 4377#endif /* HOSTAPD */ 4378 } 4379 4380 /* Not all drivers generate "scan completed" wireless event, so try to 4381 * read results after a timeout. */ 4382 timeout = 10; 4383 if (drv->scan_complete_events) { 4384 /* 4385 * The driver seems to deliver events to notify when scan is 4386 * complete, so use longer timeout to avoid race conditions 4387 * with scanning and following association request. 4388 */ 4389 timeout = 30; 4390 } 4391 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4392 "seconds", ret, timeout); 4393 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4394 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4395 drv, drv->ctx); 4396 4397nla_put_failure: 4398 nlmsg_free(msg); 4399 return ret; 4400} 4401 4402 4403/** 4404 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4405 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4406 * @params: Scan parameters 4407 * @interval: Interval between scan cycles in milliseconds 4408 * Returns: 0 on success, -1 on failure or if not supported 4409 */ 4410static int wpa_driver_nl80211_sched_scan(void *priv, 4411 struct wpa_driver_scan_params *params, 4412 u32 interval) 4413{ 4414 struct i802_bss *bss = priv; 4415 struct wpa_driver_nl80211_data *drv = bss->drv; 4416 int ret = -1; 4417 struct nl_msg *msg; 4418 size_t i; 4419 4420 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4421 4422#ifdef ANDROID 4423 if (!drv->capa.sched_scan_supported) 4424 return android_pno_start(bss, params); 4425#endif /* ANDROID */ 4426 4427 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, 4428 bss->wdev_id_set ? &bss->wdev_id : NULL); 4429 if (!msg) 4430 goto nla_put_failure; 4431 4432 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4433 4434 if ((drv->num_filter_ssids && 4435 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4436 params->filter_rssi) { 4437 struct nlattr *match_sets; 4438 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4439 if (match_sets == NULL) 4440 goto nla_put_failure; 4441 4442 for (i = 0; i < drv->num_filter_ssids; i++) { 4443 struct nlattr *match_set_ssid; 4444 wpa_hexdump_ascii(MSG_MSGDUMP, 4445 "nl80211: Sched scan filter SSID", 4446 drv->filter_ssids[i].ssid, 4447 drv->filter_ssids[i].ssid_len); 4448 4449 match_set_ssid = nla_nest_start(msg, i + 1); 4450 if (match_set_ssid == NULL) 4451 goto nla_put_failure; 4452 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4453 drv->filter_ssids[i].ssid_len, 4454 drv->filter_ssids[i].ssid); 4455 4456 nla_nest_end(msg, match_set_ssid); 4457 } 4458 4459 if (params->filter_rssi) { 4460 struct nlattr *match_set_rssi; 4461 match_set_rssi = nla_nest_start(msg, 0); 4462 if (match_set_rssi == NULL) 4463 goto nla_put_failure; 4464 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4465 params->filter_rssi); 4466 wpa_printf(MSG_MSGDUMP, 4467 "nl80211: Sched scan RSSI filter %d dBm", 4468 params->filter_rssi); 4469 nla_nest_end(msg, match_set_rssi); 4470 } 4471 4472 nla_nest_end(msg, match_sets); 4473 } 4474 4475 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4476 4477 /* TODO: if we get an error here, we should fall back to normal scan */ 4478 4479 msg = NULL; 4480 if (ret) { 4481 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4482 "ret=%d (%s)", ret, strerror(-ret)); 4483 goto nla_put_failure; 4484 } 4485 4486 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4487 "scan interval %d msec", ret, interval); 4488 4489nla_put_failure: 4490 nlmsg_free(msg); 4491 return ret; 4492} 4493 4494 4495/** 4496 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4497 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4498 * Returns: 0 on success, -1 on failure or if not supported 4499 */ 4500static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4501{ 4502 struct i802_bss *bss = priv; 4503 struct wpa_driver_nl80211_data *drv = bss->drv; 4504 int ret = 0; 4505 struct nl_msg *msg; 4506 4507#ifdef ANDROID 4508 if (!drv->capa.sched_scan_supported) 4509 return android_pno_stop(bss); 4510#endif /* ANDROID */ 4511 4512 msg = nlmsg_alloc(); 4513 if (!msg) 4514 return -1; 4515 4516 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4517 4518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4519 4520 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4521 msg = NULL; 4522 if (ret) { 4523 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4524 "ret=%d (%s)", ret, strerror(-ret)); 4525 goto nla_put_failure; 4526 } 4527 4528 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4529 4530nla_put_failure: 4531 nlmsg_free(msg); 4532 return ret; 4533} 4534 4535 4536static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4537{ 4538 const u8 *end, *pos; 4539 4540 if (ies == NULL) 4541 return NULL; 4542 4543 pos = ies; 4544 end = ies + ies_len; 4545 4546 while (pos + 1 < end) { 4547 if (pos + 2 + pos[1] > end) 4548 break; 4549 if (pos[0] == ie) 4550 return pos; 4551 pos += 2 + pos[1]; 4552 } 4553 4554 return NULL; 4555} 4556 4557 4558static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4559 const u8 *ie, size_t ie_len) 4560{ 4561 const u8 *ssid; 4562 size_t i; 4563 4564 if (drv->filter_ssids == NULL) 4565 return 0; 4566 4567 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4568 if (ssid == NULL) 4569 return 1; 4570 4571 for (i = 0; i < drv->num_filter_ssids; i++) { 4572 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4573 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4574 0) 4575 return 0; 4576 } 4577 4578 return 1; 4579} 4580 4581 4582static int bss_info_handler(struct nl_msg *msg, void *arg) 4583{ 4584 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4585 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4586 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4587 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4588 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4589 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4590 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4591 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4592 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4593 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4594 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4595 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4596 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4597 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4598 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4599 }; 4600 struct nl80211_bss_info_arg *_arg = arg; 4601 struct wpa_scan_results *res = _arg->res; 4602 struct wpa_scan_res **tmp; 4603 struct wpa_scan_res *r; 4604 const u8 *ie, *beacon_ie; 4605 size_t ie_len, beacon_ie_len; 4606 u8 *pos; 4607 size_t i; 4608 4609 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4610 genlmsg_attrlen(gnlh, 0), NULL); 4611 if (!tb[NL80211_ATTR_BSS]) 4612 return NL_SKIP; 4613 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4614 bss_policy)) 4615 return NL_SKIP; 4616 if (bss[NL80211_BSS_STATUS]) { 4617 enum nl80211_bss_status status; 4618 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4619 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4620 bss[NL80211_BSS_FREQUENCY]) { 4621 _arg->assoc_freq = 4622 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4623 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4624 _arg->assoc_freq); 4625 } 4626 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4627 bss[NL80211_BSS_BSSID]) { 4628 os_memcpy(_arg->assoc_bssid, 4629 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4630 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4631 MACSTR, MAC2STR(_arg->assoc_bssid)); 4632 } 4633 } 4634 if (!res) 4635 return NL_SKIP; 4636 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4637 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4638 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4639 } else { 4640 ie = NULL; 4641 ie_len = 0; 4642 } 4643 if (bss[NL80211_BSS_BEACON_IES]) { 4644 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4645 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4646 } else { 4647 beacon_ie = NULL; 4648 beacon_ie_len = 0; 4649 } 4650 4651 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4652 ie ? ie_len : beacon_ie_len)) 4653 return NL_SKIP; 4654 4655 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4656 if (r == NULL) 4657 return NL_SKIP; 4658 if (bss[NL80211_BSS_BSSID]) 4659 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4660 ETH_ALEN); 4661 if (bss[NL80211_BSS_FREQUENCY]) 4662 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4663 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4664 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4665 if (bss[NL80211_BSS_CAPABILITY]) 4666 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4667 r->flags |= WPA_SCAN_NOISE_INVALID; 4668 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4669 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4670 r->level /= 100; /* mBm to dBm */ 4671 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4672 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4673 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4674 r->flags |= WPA_SCAN_QUAL_INVALID; 4675 } else 4676 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4677 if (bss[NL80211_BSS_TSF]) 4678 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4679 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4680 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4681 r->ie_len = ie_len; 4682 pos = (u8 *) (r + 1); 4683 if (ie) { 4684 os_memcpy(pos, ie, ie_len); 4685 pos += ie_len; 4686 } 4687 r->beacon_ie_len = beacon_ie_len; 4688 if (beacon_ie) 4689 os_memcpy(pos, beacon_ie, beacon_ie_len); 4690 4691 if (bss[NL80211_BSS_STATUS]) { 4692 enum nl80211_bss_status status; 4693 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4694 switch (status) { 4695 case NL80211_BSS_STATUS_AUTHENTICATED: 4696 r->flags |= WPA_SCAN_AUTHENTICATED; 4697 break; 4698 case NL80211_BSS_STATUS_ASSOCIATED: 4699 r->flags |= WPA_SCAN_ASSOCIATED; 4700 break; 4701 default: 4702 break; 4703 } 4704 } 4705 4706 /* 4707 * cfg80211 maintains separate BSS table entries for APs if the same 4708 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4709 * not use frequency as a separate key in the BSS table, so filter out 4710 * duplicated entries. Prefer associated BSS entry in such a case in 4711 * order to get the correct frequency into the BSS table. 4712 */ 4713 for (i = 0; i < res->num; i++) { 4714 const u8 *s1, *s2; 4715 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4716 continue; 4717 4718 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4719 res->res[i]->ie_len, WLAN_EID_SSID); 4720 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4721 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4722 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4723 continue; 4724 4725 /* Same BSSID,SSID was already included in scan results */ 4726 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4727 "for " MACSTR, MAC2STR(r->bssid)); 4728 4729 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4730 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4731 os_free(res->res[i]); 4732 res->res[i] = r; 4733 } else 4734 os_free(r); 4735 return NL_SKIP; 4736 } 4737 4738 tmp = os_realloc_array(res->res, res->num + 1, 4739 sizeof(struct wpa_scan_res *)); 4740 if (tmp == NULL) { 4741 os_free(r); 4742 return NL_SKIP; 4743 } 4744 tmp[res->num++] = r; 4745 res->res = tmp; 4746 4747 return NL_SKIP; 4748} 4749 4750 4751static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4752 const u8 *addr) 4753{ 4754 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4755 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4756 "mismatch (" MACSTR ")", MAC2STR(addr)); 4757 wpa_driver_nl80211_mlme(drv, addr, 4758 NL80211_CMD_DEAUTHENTICATE, 4759 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4760 } 4761} 4762 4763 4764static void wpa_driver_nl80211_check_bss_status( 4765 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4766{ 4767 size_t i; 4768 4769 for (i = 0; i < res->num; i++) { 4770 struct wpa_scan_res *r = res->res[i]; 4771 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4772 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4773 "indicates BSS status with " MACSTR 4774 " as authenticated", 4775 MAC2STR(r->bssid)); 4776 if (is_sta_interface(drv->nlmode) && 4777 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4778 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4779 0) { 4780 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4781 " in local state (auth=" MACSTR 4782 " assoc=" MACSTR ")", 4783 MAC2STR(drv->auth_bssid), 4784 MAC2STR(drv->bssid)); 4785 clear_state_mismatch(drv, r->bssid); 4786 } 4787 } 4788 4789 if (r->flags & WPA_SCAN_ASSOCIATED) { 4790 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4791 "indicate BSS status with " MACSTR 4792 " as associated", 4793 MAC2STR(r->bssid)); 4794 if (is_sta_interface(drv->nlmode) && 4795 !drv->associated) { 4796 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4797 "(not associated) does not match " 4798 "with BSS state"); 4799 clear_state_mismatch(drv, r->bssid); 4800 } else if (is_sta_interface(drv->nlmode) && 4801 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4802 0) { 4803 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4804 "(associated with " MACSTR ") does " 4805 "not match with BSS state", 4806 MAC2STR(drv->bssid)); 4807 clear_state_mismatch(drv, r->bssid); 4808 clear_state_mismatch(drv, drv->bssid); 4809 } 4810 } 4811 } 4812} 4813 4814 4815static struct wpa_scan_results * 4816nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4817{ 4818 struct nl_msg *msg; 4819 struct wpa_scan_results *res; 4820 int ret; 4821 struct nl80211_bss_info_arg arg; 4822 4823 res = os_zalloc(sizeof(*res)); 4824 if (res == NULL) 4825 return NULL; 4826 msg = nlmsg_alloc(); 4827 if (!msg) 4828 goto nla_put_failure; 4829 4830 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4831 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 4832 goto nla_put_failure; 4833 4834 arg.drv = drv; 4835 arg.res = res; 4836 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4837 msg = NULL; 4838 if (ret == 0) { 4839 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4840 "BSSes)", (unsigned long) res->num); 4841 nl80211_get_noise_for_scan_results(drv, res); 4842 return res; 4843 } 4844 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4845 "(%s)", ret, strerror(-ret)); 4846nla_put_failure: 4847 nlmsg_free(msg); 4848 wpa_scan_results_free(res); 4849 return NULL; 4850} 4851 4852 4853/** 4854 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4855 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4856 * Returns: Scan results on success, -1 on failure 4857 */ 4858static struct wpa_scan_results * 4859wpa_driver_nl80211_get_scan_results(void *priv) 4860{ 4861 struct i802_bss *bss = priv; 4862 struct wpa_driver_nl80211_data *drv = bss->drv; 4863 struct wpa_scan_results *res; 4864 4865 res = nl80211_get_scan_results(drv); 4866 if (res) 4867 wpa_driver_nl80211_check_bss_status(drv, res); 4868 return res; 4869} 4870 4871 4872static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4873{ 4874 struct wpa_scan_results *res; 4875 size_t i; 4876 4877 res = nl80211_get_scan_results(drv); 4878 if (res == NULL) { 4879 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4880 return; 4881 } 4882 4883 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4884 for (i = 0; i < res->num; i++) { 4885 struct wpa_scan_res *r = res->res[i]; 4886 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4887 (int) i, (int) res->num, MAC2STR(r->bssid), 4888 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4889 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4890 } 4891 4892 wpa_scan_results_free(res); 4893} 4894 4895 4896static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4897 enum wpa_alg alg, const u8 *addr, 4898 int key_idx, int set_tx, 4899 const u8 *seq, size_t seq_len, 4900 const u8 *key, size_t key_len) 4901{ 4902 struct wpa_driver_nl80211_data *drv = bss->drv; 4903 int ifindex; 4904 struct nl_msg *msg; 4905 int ret; 4906 int tdls = 0; 4907 4908 /* Ignore for P2P Device */ 4909 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 4910 return 0; 4911 4912 ifindex = if_nametoindex(ifname); 4913 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 4914 "set_tx=%d seq_len=%lu key_len=%lu", 4915 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 4916 (unsigned long) seq_len, (unsigned long) key_len); 4917#ifdef CONFIG_TDLS 4918 if (key_idx == -1) { 4919 key_idx = 0; 4920 tdls = 1; 4921 } 4922#endif /* CONFIG_TDLS */ 4923 4924 msg = nlmsg_alloc(); 4925 if (!msg) 4926 return -ENOMEM; 4927 4928 if (alg == WPA_ALG_NONE) { 4929 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4930 } else { 4931 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4932 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4933 switch (alg) { 4934 case WPA_ALG_WEP: 4935 if (key_len == 5) 4936 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4937 WLAN_CIPHER_SUITE_WEP40); 4938 else 4939 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4940 WLAN_CIPHER_SUITE_WEP104); 4941 break; 4942 case WPA_ALG_TKIP: 4943 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4944 WLAN_CIPHER_SUITE_TKIP); 4945 break; 4946 case WPA_ALG_CCMP: 4947 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4948 WLAN_CIPHER_SUITE_CCMP); 4949 break; 4950 case WPA_ALG_GCMP: 4951 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4952 WLAN_CIPHER_SUITE_GCMP); 4953 break; 4954 case WPA_ALG_IGTK: 4955 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4956 WLAN_CIPHER_SUITE_AES_CMAC); 4957 break; 4958 case WPA_ALG_SMS4: 4959 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4960 WLAN_CIPHER_SUITE_SMS4); 4961 break; 4962 case WPA_ALG_KRK: 4963 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4964 WLAN_CIPHER_SUITE_KRK); 4965 break; 4966 default: 4967 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4968 "algorithm %d", __func__, alg); 4969 nlmsg_free(msg); 4970 return -1; 4971 } 4972 } 4973 4974 if (seq && seq_len) 4975 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4976 4977 if (addr && !is_broadcast_ether_addr(addr)) { 4978 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4979 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4980 4981 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4982 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4983 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4984 NL80211_KEYTYPE_GROUP); 4985 } 4986 } else if (addr && is_broadcast_ether_addr(addr)) { 4987 struct nlattr *types; 4988 4989 wpa_printf(MSG_DEBUG, " broadcast key"); 4990 4991 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4992 if (!types) 4993 goto nla_put_failure; 4994 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4995 nla_nest_end(msg, types); 4996 } 4997 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4999 5000 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5001 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 5002 ret = 0; 5003 if (ret) 5004 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 5005 ret, strerror(-ret)); 5006 5007 /* 5008 * If we failed or don't need to set the default TX key (below), 5009 * we're done here. 5010 */ 5011 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 5012 return ret; 5013 if (is_ap_interface(drv->nlmode) && addr && 5014 !is_broadcast_ether_addr(addr)) 5015 return ret; 5016 5017 msg = nlmsg_alloc(); 5018 if (!msg) 5019 return -ENOMEM; 5020 5021 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 5022 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 5023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5024 if (alg == WPA_ALG_IGTK) 5025 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 5026 else 5027 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 5028 if (addr && is_broadcast_ether_addr(addr)) { 5029 struct nlattr *types; 5030 5031 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5032 if (!types) 5033 goto nla_put_failure; 5034 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 5035 nla_nest_end(msg, types); 5036 } else if (addr) { 5037 struct nlattr *types; 5038 5039 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 5040 if (!types) 5041 goto nla_put_failure; 5042 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 5043 nla_nest_end(msg, types); 5044 } 5045 5046 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5047 if (ret == -ENOENT) 5048 ret = 0; 5049 if (ret) 5050 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 5051 "err=%d %s)", ret, strerror(-ret)); 5052 return ret; 5053 5054nla_put_failure: 5055 nlmsg_free(msg); 5056 return -ENOBUFS; 5057} 5058 5059 5060static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 5061 int key_idx, int defkey, 5062 const u8 *seq, size_t seq_len, 5063 const u8 *key, size_t key_len) 5064{ 5065 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 5066 if (!key_attr) 5067 return -1; 5068 5069 if (defkey && alg == WPA_ALG_IGTK) 5070 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 5071 else if (defkey) 5072 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5073 5074 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 5075 5076 switch (alg) { 5077 case WPA_ALG_WEP: 5078 if (key_len == 5) 5079 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5080 WLAN_CIPHER_SUITE_WEP40); 5081 else 5082 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5083 WLAN_CIPHER_SUITE_WEP104); 5084 break; 5085 case WPA_ALG_TKIP: 5086 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 5087 break; 5088 case WPA_ALG_CCMP: 5089 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 5090 break; 5091 case WPA_ALG_GCMP: 5092 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 5093 break; 5094 case WPA_ALG_IGTK: 5095 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5096 WLAN_CIPHER_SUITE_AES_CMAC); 5097 break; 5098 default: 5099 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 5100 "algorithm %d", __func__, alg); 5101 return -1; 5102 } 5103 5104 if (seq && seq_len) 5105 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 5106 5107 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 5108 5109 nla_nest_end(msg, key_attr); 5110 5111 return 0; 5112 nla_put_failure: 5113 return -1; 5114} 5115 5116 5117static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 5118 struct nl_msg *msg) 5119{ 5120 int i, privacy = 0; 5121 struct nlattr *nl_keys, *nl_key; 5122 5123 for (i = 0; i < 4; i++) { 5124 if (!params->wep_key[i]) 5125 continue; 5126 privacy = 1; 5127 break; 5128 } 5129 if (params->wps == WPS_MODE_PRIVACY) 5130 privacy = 1; 5131 if (params->pairwise_suite && 5132 params->pairwise_suite != WPA_CIPHER_NONE) 5133 privacy = 1; 5134 5135 if (!privacy) 5136 return 0; 5137 5138 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5139 5140 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 5141 if (!nl_keys) 5142 goto nla_put_failure; 5143 5144 for (i = 0; i < 4; i++) { 5145 if (!params->wep_key[i]) 5146 continue; 5147 5148 nl_key = nla_nest_start(msg, i); 5149 if (!nl_key) 5150 goto nla_put_failure; 5151 5152 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 5153 params->wep_key[i]); 5154 if (params->wep_key_len[i] == 5) 5155 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5156 WLAN_CIPHER_SUITE_WEP40); 5157 else 5158 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 5159 WLAN_CIPHER_SUITE_WEP104); 5160 5161 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 5162 5163 if (i == params->wep_tx_keyidx) 5164 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 5165 5166 nla_nest_end(msg, nl_key); 5167 } 5168 nla_nest_end(msg, nl_keys); 5169 5170 return 0; 5171 5172nla_put_failure: 5173 return -ENOBUFS; 5174} 5175 5176 5177static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 5178 const u8 *addr, int cmd, u16 reason_code, 5179 int local_state_change) 5180{ 5181 int ret = -1; 5182 struct nl_msg *msg; 5183 5184 msg = nlmsg_alloc(); 5185 if (!msg) 5186 return -1; 5187 5188 nl80211_cmd(drv, msg, 0, cmd); 5189 5190 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5191 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 5192 if (addr) 5193 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 5194 if (local_state_change) 5195 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5196 5197 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5198 msg = NULL; 5199 if (ret) { 5200 wpa_dbg(drv->ctx, MSG_DEBUG, 5201 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 5202 reason_code, ret, strerror(-ret)); 5203 goto nla_put_failure; 5204 } 5205 ret = 0; 5206 5207nla_put_failure: 5208 nlmsg_free(msg); 5209 return ret; 5210} 5211 5212 5213static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 5214 int reason_code) 5215{ 5216 int ret; 5217 5218 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 5219 nl80211_mark_disconnected(drv); 5220 /* Disconnect command doesn't need BSSID - it uses cached value */ 5221 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 5222 reason_code, 0); 5223 /* 5224 * For locally generated disconnect, supplicant already generates a 5225 * DEAUTH event, so ignore the event from NL80211. 5226 */ 5227 drv->ignore_next_local_disconnect = ret == 0; 5228 5229 return ret; 5230} 5231 5232 5233static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 5234 const u8 *addr, int reason_code) 5235{ 5236 struct wpa_driver_nl80211_data *drv = bss->drv; 5237 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 5238 return wpa_driver_nl80211_disconnect(drv, reason_code); 5239 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 5240 __func__, MAC2STR(addr), reason_code); 5241 nl80211_mark_disconnected(drv); 5242 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 5243 return nl80211_leave_ibss(drv); 5244 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 5245 reason_code, 0); 5246} 5247 5248 5249static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 5250 struct wpa_driver_auth_params *params) 5251{ 5252 int i; 5253 5254 drv->auth_freq = params->freq; 5255 drv->auth_alg = params->auth_alg; 5256 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 5257 drv->auth_local_state_change = params->local_state_change; 5258 drv->auth_p2p = params->p2p; 5259 5260 if (params->bssid) 5261 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 5262 else 5263 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 5264 5265 if (params->ssid) { 5266 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 5267 drv->auth_ssid_len = params->ssid_len; 5268 } else 5269 drv->auth_ssid_len = 0; 5270 5271 5272 os_free(drv->auth_ie); 5273 drv->auth_ie = NULL; 5274 drv->auth_ie_len = 0; 5275 if (params->ie) { 5276 drv->auth_ie = os_malloc(params->ie_len); 5277 if (drv->auth_ie) { 5278 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 5279 drv->auth_ie_len = params->ie_len; 5280 } 5281 } 5282 5283 for (i = 0; i < 4; i++) { 5284 if (params->wep_key[i] && params->wep_key_len[i] && 5285 params->wep_key_len[i] <= 16) { 5286 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 5287 params->wep_key_len[i]); 5288 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 5289 } else 5290 drv->auth_wep_key_len[i] = 0; 5291 } 5292} 5293 5294 5295static int wpa_driver_nl80211_authenticate( 5296 struct i802_bss *bss, struct wpa_driver_auth_params *params) 5297{ 5298 struct wpa_driver_nl80211_data *drv = bss->drv; 5299 int ret = -1, i; 5300 struct nl_msg *msg; 5301 enum nl80211_auth_type type; 5302 enum nl80211_iftype nlmode; 5303 int count = 0; 5304 int is_retry; 5305 5306 is_retry = drv->retry_auth; 5307 drv->retry_auth = 0; 5308 5309 nl80211_mark_disconnected(drv); 5310 os_memset(drv->auth_bssid, 0, ETH_ALEN); 5311 if (params->bssid) 5312 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5313 else 5314 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5315 /* FIX: IBSS mode */ 5316 nlmode = params->p2p ? 5317 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5318 if (drv->nlmode != nlmode && 5319 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 5320 return -1; 5321 5322retry: 5323 msg = nlmsg_alloc(); 5324 if (!msg) 5325 return -1; 5326 5327 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 5328 drv->ifindex); 5329 5330 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 5331 5332 for (i = 0; i < 4; i++) { 5333 if (!params->wep_key[i]) 5334 continue; 5335 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 5336 NULL, i, 5337 i == params->wep_tx_keyidx, NULL, 0, 5338 params->wep_key[i], 5339 params->wep_key_len[i]); 5340 if (params->wep_tx_keyidx != i) 5341 continue; 5342 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 5343 params->wep_key[i], params->wep_key_len[i])) { 5344 nlmsg_free(msg); 5345 return -1; 5346 } 5347 } 5348 5349 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5350 if (params->bssid) { 5351 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5352 MAC2STR(params->bssid)); 5353 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5354 } 5355 if (params->freq) { 5356 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5357 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5358 } 5359 if (params->ssid) { 5360 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5361 params->ssid, params->ssid_len); 5362 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5363 params->ssid); 5364 } 5365 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5366 if (params->ie) 5367 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5368 if (params->sae_data) { 5369 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5370 params->sae_data_len); 5371 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5372 params->sae_data); 5373 } 5374 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5375 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5376 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5377 type = NL80211_AUTHTYPE_SHARED_KEY; 5378 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5379 type = NL80211_AUTHTYPE_NETWORK_EAP; 5380 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5381 type = NL80211_AUTHTYPE_FT; 5382 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5383 type = NL80211_AUTHTYPE_SAE; 5384 else 5385 goto nla_put_failure; 5386 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5387 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5388 if (params->local_state_change) { 5389 wpa_printf(MSG_DEBUG, " * Local state change only"); 5390 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5391 } 5392 5393 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5394 msg = NULL; 5395 if (ret) { 5396 wpa_dbg(drv->ctx, MSG_DEBUG, 5397 "nl80211: MLME command failed (auth): ret=%d (%s)", 5398 ret, strerror(-ret)); 5399 count++; 5400 if (ret == -EALREADY && count == 1 && params->bssid && 5401 !params->local_state_change) { 5402 /* 5403 * mac80211 does not currently accept new 5404 * authentication if we are already authenticated. As a 5405 * workaround, force deauthentication and try again. 5406 */ 5407 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5408 "after forced deauthentication"); 5409 wpa_driver_nl80211_deauthenticate( 5410 bss, params->bssid, 5411 WLAN_REASON_PREV_AUTH_NOT_VALID); 5412 nlmsg_free(msg); 5413 goto retry; 5414 } 5415 5416 if (ret == -ENOENT && params->freq && !is_retry) { 5417 /* 5418 * cfg80211 has likely expired the BSS entry even 5419 * though it was previously available in our internal 5420 * BSS table. To recover quickly, start a single 5421 * channel scan on the specified channel. 5422 */ 5423 struct wpa_driver_scan_params scan; 5424 int freqs[2]; 5425 5426 os_memset(&scan, 0, sizeof(scan)); 5427 scan.num_ssids = 1; 5428 if (params->ssid) { 5429 scan.ssids[0].ssid = params->ssid; 5430 scan.ssids[0].ssid_len = params->ssid_len; 5431 } 5432 freqs[0] = params->freq; 5433 freqs[1] = 0; 5434 scan.freqs = freqs; 5435 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5436 "channel scan to refresh cfg80211 BSS " 5437 "entry"); 5438 ret = wpa_driver_nl80211_scan(bss, &scan); 5439 if (ret == 0) { 5440 nl80211_copy_auth_params(drv, params); 5441 drv->scan_for_auth = 1; 5442 } 5443 } else if (is_retry) { 5444 /* 5445 * Need to indicate this with an event since the return 5446 * value from the retry is not delivered to core code. 5447 */ 5448 union wpa_event_data event; 5449 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5450 "failed"); 5451 os_memset(&event, 0, sizeof(event)); 5452 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5453 ETH_ALEN); 5454 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5455 &event); 5456 } 5457 5458 goto nla_put_failure; 5459 } 5460 ret = 0; 5461 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5462 "successfully"); 5463 5464nla_put_failure: 5465 nlmsg_free(msg); 5466 return ret; 5467} 5468 5469 5470static int wpa_driver_nl80211_authenticate_retry( 5471 struct wpa_driver_nl80211_data *drv) 5472{ 5473 struct wpa_driver_auth_params params; 5474 struct i802_bss *bss = &drv->first_bss; 5475 int i; 5476 5477 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5478 5479 os_memset(¶ms, 0, sizeof(params)); 5480 params.freq = drv->auth_freq; 5481 params.auth_alg = drv->auth_alg; 5482 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5483 params.local_state_change = drv->auth_local_state_change; 5484 params.p2p = drv->auth_p2p; 5485 5486 if (!is_zero_ether_addr(drv->auth_bssid_)) 5487 params.bssid = drv->auth_bssid_; 5488 5489 if (drv->auth_ssid_len) { 5490 params.ssid = drv->auth_ssid; 5491 params.ssid_len = drv->auth_ssid_len; 5492 } 5493 5494 params.ie = drv->auth_ie; 5495 params.ie_len = drv->auth_ie_len; 5496 5497 for (i = 0; i < 4; i++) { 5498 if (drv->auth_wep_key_len[i]) { 5499 params.wep_key[i] = drv->auth_wep_key[i]; 5500 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5501 } 5502 } 5503 5504 drv->retry_auth = 1; 5505 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5506} 5507 5508 5509struct phy_info_arg { 5510 u16 *num_modes; 5511 struct hostapd_hw_modes *modes; 5512 int last_mode, last_chan_idx; 5513}; 5514 5515static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5516 struct nlattr *ampdu_factor, 5517 struct nlattr *ampdu_density, 5518 struct nlattr *mcs_set) 5519{ 5520 if (capa) 5521 mode->ht_capab = nla_get_u16(capa); 5522 5523 if (ampdu_factor) 5524 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5525 5526 if (ampdu_density) 5527 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5528 5529 if (mcs_set && nla_len(mcs_set) >= 16) { 5530 u8 *mcs; 5531 mcs = nla_data(mcs_set); 5532 os_memcpy(mode->mcs_set, mcs, 16); 5533 } 5534} 5535 5536 5537static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5538 struct nlattr *capa, 5539 struct nlattr *mcs_set) 5540{ 5541 if (capa) 5542 mode->vht_capab = nla_get_u32(capa); 5543 5544 if (mcs_set && nla_len(mcs_set) >= 8) { 5545 u8 *mcs; 5546 mcs = nla_data(mcs_set); 5547 os_memcpy(mode->vht_mcs_set, mcs, 8); 5548 } 5549} 5550 5551 5552static void phy_info_freq(struct hostapd_hw_modes *mode, 5553 struct hostapd_channel_data *chan, 5554 struct nlattr *tb_freq[]) 5555{ 5556 u8 channel; 5557 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5558 chan->flag = 0; 5559 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5560 chan->chan = channel; 5561 5562 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5563 chan->flag |= HOSTAPD_CHAN_DISABLED; 5564 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5565 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5566 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5567 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5568 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5569 chan->flag |= HOSTAPD_CHAN_RADAR; 5570 5571 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5572 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5573 chan->max_tx_power = nla_get_u32( 5574 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5575 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5576 enum nl80211_dfs_state state = 5577 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5578 5579 switch (state) { 5580 case NL80211_DFS_USABLE: 5581 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5582 break; 5583 case NL80211_DFS_AVAILABLE: 5584 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5585 break; 5586 case NL80211_DFS_UNAVAILABLE: 5587 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5588 break; 5589 } 5590 } 5591} 5592 5593 5594static int phy_info_freqs(struct phy_info_arg *phy_info, 5595 struct hostapd_hw_modes *mode, struct nlattr *tb) 5596{ 5597 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5598 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5599 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5600 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5601 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5602 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5603 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5604 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5605 }; 5606 int new_channels = 0; 5607 struct hostapd_channel_data *channel; 5608 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5609 struct nlattr *nl_freq; 5610 int rem_freq, idx; 5611 5612 if (tb == NULL) 5613 return NL_OK; 5614 5615 nla_for_each_nested(nl_freq, tb, rem_freq) { 5616 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5617 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5618 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5619 continue; 5620 new_channels++; 5621 } 5622 5623 channel = os_realloc_array(mode->channels, 5624 mode->num_channels + new_channels, 5625 sizeof(struct hostapd_channel_data)); 5626 if (!channel) 5627 return NL_SKIP; 5628 5629 mode->channels = channel; 5630 mode->num_channels += new_channels; 5631 5632 idx = phy_info->last_chan_idx; 5633 5634 nla_for_each_nested(nl_freq, tb, rem_freq) { 5635 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5636 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5637 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5638 continue; 5639 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5640 idx++; 5641 } 5642 phy_info->last_chan_idx = idx; 5643 5644 return NL_OK; 5645} 5646 5647 5648static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5649{ 5650 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5651 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5652 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5653 { .type = NLA_FLAG }, 5654 }; 5655 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5656 struct nlattr *nl_rate; 5657 int rem_rate, idx; 5658 5659 if (tb == NULL) 5660 return NL_OK; 5661 5662 nla_for_each_nested(nl_rate, tb, rem_rate) { 5663 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5664 nla_data(nl_rate), nla_len(nl_rate), 5665 rate_policy); 5666 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5667 continue; 5668 mode->num_rates++; 5669 } 5670 5671 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5672 if (!mode->rates) 5673 return NL_SKIP; 5674 5675 idx = 0; 5676 5677 nla_for_each_nested(nl_rate, tb, rem_rate) { 5678 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5679 nla_data(nl_rate), nla_len(nl_rate), 5680 rate_policy); 5681 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5682 continue; 5683 mode->rates[idx] = nla_get_u32( 5684 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5685 idx++; 5686 } 5687 5688 return NL_OK; 5689} 5690 5691 5692static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5693{ 5694 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5695 struct hostapd_hw_modes *mode; 5696 int ret; 5697 5698 if (phy_info->last_mode != nl_band->nla_type) { 5699 mode = os_realloc_array(phy_info->modes, 5700 *phy_info->num_modes + 1, 5701 sizeof(*mode)); 5702 if (!mode) 5703 return NL_SKIP; 5704 phy_info->modes = mode; 5705 5706 mode = &phy_info->modes[*(phy_info->num_modes)]; 5707 os_memset(mode, 0, sizeof(*mode)); 5708 mode->mode = NUM_HOSTAPD_MODES; 5709 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | 5710 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; 5711 5712 /* 5713 * Unsupported VHT MCS stream is defined as value 3, so the VHT 5714 * MCS RX/TX map must be initialized with 0xffff to mark all 8 5715 * possible streams as unsupported. This will be overridden if 5716 * driver advertises VHT support. 5717 */ 5718 mode->vht_mcs_set[0] = 0xff; 5719 mode->vht_mcs_set[1] = 0xff; 5720 mode->vht_mcs_set[4] = 0xff; 5721 mode->vht_mcs_set[5] = 0xff; 5722 5723 *(phy_info->num_modes) += 1; 5724 phy_info->last_mode = nl_band->nla_type; 5725 phy_info->last_chan_idx = 0; 5726 } else 5727 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5728 5729 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5730 nla_len(nl_band), NULL); 5731 5732 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5733 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5734 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5735 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5736 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5737 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5738 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5739 if (ret != NL_OK) 5740 return ret; 5741 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5742 if (ret != NL_OK) 5743 return ret; 5744 5745 return NL_OK; 5746} 5747 5748 5749static int phy_info_handler(struct nl_msg *msg, void *arg) 5750{ 5751 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5752 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5753 struct phy_info_arg *phy_info = arg; 5754 struct nlattr *nl_band; 5755 int rem_band; 5756 5757 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5758 genlmsg_attrlen(gnlh, 0), NULL); 5759 5760 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5761 return NL_SKIP; 5762 5763 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5764 { 5765 int res = phy_info_band(phy_info, nl_band); 5766 if (res != NL_OK) 5767 return res; 5768 } 5769 5770 return NL_SKIP; 5771} 5772 5773 5774static struct hostapd_hw_modes * 5775wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5776 u16 *num_modes) 5777{ 5778 u16 m; 5779 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5780 int i, mode11g_idx = -1; 5781 5782 /* heuristic to set up modes */ 5783 for (m = 0; m < *num_modes; m++) { 5784 if (!modes[m].num_channels) 5785 continue; 5786 if (modes[m].channels[0].freq < 4000) { 5787 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5788 for (i = 0; i < modes[m].num_rates; i++) { 5789 if (modes[m].rates[i] > 200) { 5790 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5791 break; 5792 } 5793 } 5794 } else if (modes[m].channels[0].freq > 50000) 5795 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5796 else 5797 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5798 } 5799 5800 /* If only 802.11g mode is included, use it to construct matching 5801 * 802.11b mode data. */ 5802 5803 for (m = 0; m < *num_modes; m++) { 5804 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5805 return modes; /* 802.11b already included */ 5806 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5807 mode11g_idx = m; 5808 } 5809 5810 if (mode11g_idx < 0) 5811 return modes; /* 2.4 GHz band not supported at all */ 5812 5813 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5814 if (nmodes == NULL) 5815 return modes; /* Could not add 802.11b mode */ 5816 5817 mode = &nmodes[*num_modes]; 5818 os_memset(mode, 0, sizeof(*mode)); 5819 (*num_modes)++; 5820 modes = nmodes; 5821 5822 mode->mode = HOSTAPD_MODE_IEEE80211B; 5823 5824 mode11g = &modes[mode11g_idx]; 5825 mode->num_channels = mode11g->num_channels; 5826 mode->channels = os_malloc(mode11g->num_channels * 5827 sizeof(struct hostapd_channel_data)); 5828 if (mode->channels == NULL) { 5829 (*num_modes)--; 5830 return modes; /* Could not add 802.11b mode */ 5831 } 5832 os_memcpy(mode->channels, mode11g->channels, 5833 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5834 5835 mode->num_rates = 0; 5836 mode->rates = os_malloc(4 * sizeof(int)); 5837 if (mode->rates == NULL) { 5838 os_free(mode->channels); 5839 (*num_modes)--; 5840 return modes; /* Could not add 802.11b mode */ 5841 } 5842 5843 for (i = 0; i < mode11g->num_rates; i++) { 5844 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5845 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5846 continue; 5847 mode->rates[mode->num_rates] = mode11g->rates[i]; 5848 mode->num_rates++; 5849 if (mode->num_rates == 4) 5850 break; 5851 } 5852 5853 if (mode->num_rates == 0) { 5854 os_free(mode->channels); 5855 os_free(mode->rates); 5856 (*num_modes)--; 5857 return modes; /* No 802.11b rates */ 5858 } 5859 5860 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5861 "information"); 5862 5863 return modes; 5864} 5865 5866 5867static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5868 int end) 5869{ 5870 int c; 5871 5872 for (c = 0; c < mode->num_channels; c++) { 5873 struct hostapd_channel_data *chan = &mode->channels[c]; 5874 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5875 chan->flag |= HOSTAPD_CHAN_HT40; 5876 } 5877} 5878 5879 5880static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5881 int end) 5882{ 5883 int c; 5884 5885 for (c = 0; c < mode->num_channels; c++) { 5886 struct hostapd_channel_data *chan = &mode->channels[c]; 5887 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5888 continue; 5889 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5890 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5891 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5892 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5893 } 5894} 5895 5896 5897static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5898 struct phy_info_arg *results) 5899{ 5900 u32 start, end, max_bw; 5901 u16 m; 5902 5903 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5904 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5905 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5906 return; 5907 5908 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5909 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5910 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5911 5912 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5913 start, end, max_bw); 5914 if (max_bw < 40) 5915 return; 5916 5917 for (m = 0; m < *results->num_modes; m++) { 5918 if (!(results->modes[m].ht_capab & 5919 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5920 continue; 5921 nl80211_set_ht40_mode(&results->modes[m], start, end); 5922 } 5923} 5924 5925 5926static void nl80211_reg_rule_sec(struct nlattr *tb[], 5927 struct phy_info_arg *results) 5928{ 5929 u32 start, end, max_bw; 5930 u16 m; 5931 5932 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5933 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5934 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5935 return; 5936 5937 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5938 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5939 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5940 5941 if (max_bw < 20) 5942 return; 5943 5944 for (m = 0; m < *results->num_modes; m++) { 5945 if (!(results->modes[m].ht_capab & 5946 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5947 continue; 5948 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5949 } 5950} 5951 5952 5953static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5954{ 5955 struct phy_info_arg *results = arg; 5956 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5957 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5958 struct nlattr *nl_rule; 5959 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5960 int rem_rule; 5961 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5962 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5963 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5964 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5965 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5966 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5967 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5968 }; 5969 5970 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5971 genlmsg_attrlen(gnlh, 0), NULL); 5972 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5973 !tb_msg[NL80211_ATTR_REG_RULES]) { 5974 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5975 "available"); 5976 return NL_SKIP; 5977 } 5978 5979 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5980 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5981 5982 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5983 { 5984 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5985 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5986 nl80211_reg_rule_ht40(tb_rule, results); 5987 } 5988 5989 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5990 { 5991 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5992 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5993 nl80211_reg_rule_sec(tb_rule, results); 5994 } 5995 5996 return NL_SKIP; 5997} 5998 5999 6000static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 6001 struct phy_info_arg *results) 6002{ 6003 struct nl_msg *msg; 6004 6005 msg = nlmsg_alloc(); 6006 if (!msg) 6007 return -ENOMEM; 6008 6009 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 6010 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 6011} 6012 6013 6014static struct hostapd_hw_modes * 6015wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 6016{ 6017 u32 feat; 6018 struct i802_bss *bss = priv; 6019 struct wpa_driver_nl80211_data *drv = bss->drv; 6020 struct nl_msg *msg; 6021 struct phy_info_arg result = { 6022 .num_modes = num_modes, 6023 .modes = NULL, 6024 .last_mode = -1, 6025 }; 6026 6027 *num_modes = 0; 6028 *flags = 0; 6029 6030 msg = nlmsg_alloc(); 6031 if (!msg) 6032 return NULL; 6033 6034 feat = get_nl80211_protocol_features(drv); 6035 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 6036 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 6037 else 6038 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 6039 6040 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 6041 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6042 6043 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 6044 nl80211_set_ht40_flags(drv, &result); 6045 return wpa_driver_nl80211_postprocess_modes(result.modes, 6046 num_modes); 6047 } 6048 msg = NULL; 6049 nla_put_failure: 6050 nlmsg_free(msg); 6051 return NULL; 6052} 6053 6054 6055static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 6056 const void *data, size_t len, 6057 int encrypt, int noack) 6058{ 6059 __u8 rtap_hdr[] = { 6060 0x00, 0x00, /* radiotap version */ 6061 0x0e, 0x00, /* radiotap length */ 6062 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 6063 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 6064 0x00, /* padding */ 6065 0x00, 0x00, /* RX and TX flags to indicate that */ 6066 0x00, 0x00, /* this is the injected frame directly */ 6067 }; 6068 struct iovec iov[2] = { 6069 { 6070 .iov_base = &rtap_hdr, 6071 .iov_len = sizeof(rtap_hdr), 6072 }, 6073 { 6074 .iov_base = (void *) data, 6075 .iov_len = len, 6076 } 6077 }; 6078 struct msghdr msg = { 6079 .msg_name = NULL, 6080 .msg_namelen = 0, 6081 .msg_iov = iov, 6082 .msg_iovlen = 2, 6083 .msg_control = NULL, 6084 .msg_controllen = 0, 6085 .msg_flags = 0, 6086 }; 6087 int res; 6088 u16 txflags = 0; 6089 6090 if (encrypt) 6091 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 6092 6093 if (drv->monitor_sock < 0) { 6094 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 6095 "for %s", __func__); 6096 return -1; 6097 } 6098 6099 if (noack) 6100 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 6101 WPA_PUT_LE16(&rtap_hdr[12], txflags); 6102 6103 res = sendmsg(drv->monitor_sock, &msg, 0); 6104 if (res < 0) { 6105 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 6106 return -1; 6107 } 6108 return 0; 6109} 6110 6111 6112static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 6113 const void *data, size_t len, 6114 int encrypt, int noack, 6115 unsigned int freq, int no_cck, 6116 int offchanok, unsigned int wait_time) 6117{ 6118 struct wpa_driver_nl80211_data *drv = bss->drv; 6119 u64 cookie; 6120 6121 if (freq == 0) 6122 freq = bss->freq; 6123 6124 if (drv->use_monitor) 6125 return wpa_driver_nl80211_send_mntr(drv, data, len, 6126 encrypt, noack); 6127 6128 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 6129 &cookie, no_cck, noack, offchanok); 6130} 6131 6132 6133static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 6134 size_t data_len, int noack, 6135 unsigned int freq, int no_cck, 6136 int offchanok, 6137 unsigned int wait_time) 6138{ 6139 struct wpa_driver_nl80211_data *drv = bss->drv; 6140 struct ieee80211_mgmt *mgmt; 6141 int encrypt = 1; 6142 u16 fc; 6143 6144 mgmt = (struct ieee80211_mgmt *) data; 6145 fc = le_to_host16(mgmt->frame_control); 6146 6147 if ((is_sta_interface(drv->nlmode) || 6148 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 6149 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6150 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 6151 /* 6152 * The use of last_mgmt_freq is a bit of a hack, 6153 * but it works due to the single-threaded nature 6154 * of wpa_supplicant. 6155 */ 6156 if (freq == 0) 6157 freq = drv->last_mgmt_freq; 6158 return nl80211_send_frame_cmd(bss, freq, 0, 6159 data, data_len, NULL, 1, noack, 6160 1); 6161 } 6162 6163 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 6164 if (freq == 0) 6165 freq = bss->freq; 6166 return nl80211_send_frame_cmd(bss, freq, 6167 (int) freq == bss->freq ? 0 : 6168 wait_time, 6169 data, data_len, 6170 &drv->send_action_cookie, 6171 no_cck, noack, offchanok); 6172 } 6173 6174 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 6175 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 6176 /* 6177 * Only one of the authentication frame types is encrypted. 6178 * In order for static WEP encryption to work properly (i.e., 6179 * to not encrypt the frame), we need to tell mac80211 about 6180 * the frames that must not be encrypted. 6181 */ 6182 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 6183 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 6184 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 6185 encrypt = 0; 6186 } 6187 6188 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 6189 noack, freq, no_cck, offchanok, 6190 wait_time); 6191} 6192 6193 6194static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 6195 int slot, int ht_opmode, int ap_isolate, 6196 int *basic_rates) 6197{ 6198 struct wpa_driver_nl80211_data *drv = bss->drv; 6199 struct nl_msg *msg; 6200 6201 msg = nlmsg_alloc(); 6202 if (!msg) 6203 return -ENOMEM; 6204 6205 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 6206 6207 if (cts >= 0) 6208 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 6209 if (preamble >= 0) 6210 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 6211 if (slot >= 0) 6212 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 6213 if (ht_opmode >= 0) 6214 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 6215 if (ap_isolate >= 0) 6216 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 6217 6218 if (basic_rates) { 6219 u8 rates[NL80211_MAX_SUPP_RATES]; 6220 u8 rates_len = 0; 6221 int i; 6222 6223 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 6224 i++) 6225 rates[rates_len++] = basic_rates[i] / 5; 6226 6227 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 6228 } 6229 6230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6231 6232 return send_and_recv_msgs(drv, msg, NULL, NULL); 6233 nla_put_failure: 6234 nlmsg_free(msg); 6235 return -ENOBUFS; 6236} 6237 6238 6239static int wpa_driver_nl80211_set_acl(void *priv, 6240 struct hostapd_acl_params *params) 6241{ 6242 struct i802_bss *bss = priv; 6243 struct wpa_driver_nl80211_data *drv = bss->drv; 6244 struct nl_msg *msg; 6245 struct nlattr *acl; 6246 unsigned int i; 6247 int ret = 0; 6248 6249 if (!(drv->capa.max_acl_mac_addrs)) 6250 return -ENOTSUP; 6251 6252 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 6253 return -ENOTSUP; 6254 6255 msg = nlmsg_alloc(); 6256 if (!msg) 6257 return -ENOMEM; 6258 6259 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 6260 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 6261 6262 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 6263 6264 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6265 6266 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 6267 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 6268 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 6269 6270 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 6271 if (acl == NULL) 6272 goto nla_put_failure; 6273 6274 for (i = 0; i < params->num_mac_acl; i++) 6275 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 6276 6277 nla_nest_end(msg, acl); 6278 6279 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6280 msg = NULL; 6281 if (ret) { 6282 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 6283 ret, strerror(-ret)); 6284 } 6285 6286nla_put_failure: 6287 nlmsg_free(msg); 6288 6289 return ret; 6290} 6291 6292 6293static int wpa_driver_nl80211_set_ap(void *priv, 6294 struct wpa_driver_ap_params *params) 6295{ 6296 struct i802_bss *bss = priv; 6297 struct wpa_driver_nl80211_data *drv = bss->drv; 6298 struct nl_msg *msg; 6299 u8 cmd = NL80211_CMD_NEW_BEACON; 6300 int ret; 6301 int beacon_set; 6302 int ifindex = if_nametoindex(bss->ifname); 6303 int num_suites; 6304 u32 suites[10]; 6305 u32 ver; 6306 6307 beacon_set = bss->beacon_set; 6308 6309 msg = nlmsg_alloc(); 6310 if (!msg) 6311 return -ENOMEM; 6312 6313 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 6314 beacon_set); 6315 if (beacon_set) 6316 cmd = NL80211_CMD_SET_BEACON; 6317 6318 nl80211_cmd(drv, msg, 0, cmd); 6319 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 6320 params->head, params->head_len); 6321 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 6322 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 6323 params->tail, params->tail_len); 6324 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 6325 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 6326 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 6327 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 6328 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 6329 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 6330 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 6331 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 6332 params->ssid, params->ssid_len); 6333 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 6334 params->ssid); 6335 if (params->proberesp && params->proberesp_len) { 6336 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 6337 params->proberesp, params->proberesp_len); 6338 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 6339 params->proberesp); 6340 } 6341 switch (params->hide_ssid) { 6342 case NO_SSID_HIDING: 6343 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 6344 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6345 NL80211_HIDDEN_SSID_NOT_IN_USE); 6346 break; 6347 case HIDDEN_SSID_ZERO_LEN: 6348 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 6349 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6350 NL80211_HIDDEN_SSID_ZERO_LEN); 6351 break; 6352 case HIDDEN_SSID_ZERO_CONTENTS: 6353 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 6354 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 6355 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 6356 break; 6357 } 6358 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 6359 if (params->privacy) 6360 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6361 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6362 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6363 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6364 /* Leave out the attribute */ 6365 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6366 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6367 NL80211_AUTHTYPE_SHARED_KEY); 6368 else 6369 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6370 NL80211_AUTHTYPE_OPEN_SYSTEM); 6371 6372 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6373 ver = 0; 6374 if (params->wpa_version & WPA_PROTO_WPA) 6375 ver |= NL80211_WPA_VERSION_1; 6376 if (params->wpa_version & WPA_PROTO_RSN) 6377 ver |= NL80211_WPA_VERSION_2; 6378 if (ver) 6379 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6380 6381 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6382 params->key_mgmt_suites); 6383 num_suites = 0; 6384 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6385 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6386 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6387 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6388 if (num_suites) { 6389 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6390 num_suites * sizeof(u32), suites); 6391 } 6392 6393 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6394 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6395 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6396 6397 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6398 params->pairwise_ciphers); 6399 num_suites = 0; 6400 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6401 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6402 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6403 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6404 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6405 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6406 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6407 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6408 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6409 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6410 if (num_suites) { 6411 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6412 num_suites * sizeof(u32), suites); 6413 } 6414 6415 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6416 params->group_cipher); 6417 switch (params->group_cipher) { 6418 case WPA_CIPHER_CCMP: 6419 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6420 WLAN_CIPHER_SUITE_CCMP); 6421 break; 6422 case WPA_CIPHER_GCMP: 6423 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6424 WLAN_CIPHER_SUITE_GCMP); 6425 break; 6426 case WPA_CIPHER_TKIP: 6427 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6428 WLAN_CIPHER_SUITE_TKIP); 6429 break; 6430 case WPA_CIPHER_WEP104: 6431 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6432 WLAN_CIPHER_SUITE_WEP104); 6433 break; 6434 case WPA_CIPHER_WEP40: 6435 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6436 WLAN_CIPHER_SUITE_WEP40); 6437 break; 6438 } 6439 6440 if (params->beacon_ies) { 6441 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6442 params->beacon_ies); 6443 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6444 wpabuf_head(params->beacon_ies)); 6445 } 6446 if (params->proberesp_ies) { 6447 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6448 params->proberesp_ies); 6449 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6450 wpabuf_len(params->proberesp_ies), 6451 wpabuf_head(params->proberesp_ies)); 6452 } 6453 if (params->assocresp_ies) { 6454 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6455 params->assocresp_ies); 6456 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6457 wpabuf_len(params->assocresp_ies), 6458 wpabuf_head(params->assocresp_ies)); 6459 } 6460 6461 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6462 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6463 params->ap_max_inactivity); 6464 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6465 params->ap_max_inactivity); 6466 } 6467 6468 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6469 if (ret) { 6470 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6471 ret, strerror(-ret)); 6472 } else { 6473 bss->beacon_set = 1; 6474 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6475 params->short_slot_time, params->ht_opmode, 6476 params->isolate, params->basic_rates); 6477 } 6478 return ret; 6479 nla_put_failure: 6480 nlmsg_free(msg); 6481 return -ENOBUFS; 6482} 6483 6484 6485static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6486 struct hostapd_freq_params *freq) 6487{ 6488 struct wpa_driver_nl80211_data *drv = bss->drv; 6489 struct nl_msg *msg; 6490 int ret; 6491 6492 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6493 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6494 freq->freq, freq->ht_enabled, freq->vht_enabled, 6495 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6496 msg = nlmsg_alloc(); 6497 if (!msg) 6498 return -1; 6499 6500 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6501 6502 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6503 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6504 if (freq->vht_enabled) { 6505 switch (freq->bandwidth) { 6506 case 20: 6507 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6508 NL80211_CHAN_WIDTH_20); 6509 break; 6510 case 40: 6511 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6512 NL80211_CHAN_WIDTH_40); 6513 break; 6514 case 80: 6515 if (freq->center_freq2) 6516 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6517 NL80211_CHAN_WIDTH_80P80); 6518 else 6519 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6520 NL80211_CHAN_WIDTH_80); 6521 break; 6522 case 160: 6523 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6524 NL80211_CHAN_WIDTH_160); 6525 break; 6526 default: 6527 return -1; 6528 } 6529 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6530 if (freq->center_freq2) 6531 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6532 freq->center_freq2); 6533 } else if (freq->ht_enabled) { 6534 switch (freq->sec_channel_offset) { 6535 case -1: 6536 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6537 NL80211_CHAN_HT40MINUS); 6538 break; 6539 case 1: 6540 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6541 NL80211_CHAN_HT40PLUS); 6542 break; 6543 default: 6544 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6545 NL80211_CHAN_HT20); 6546 break; 6547 } 6548 } 6549 6550 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6551 msg = NULL; 6552 if (ret == 0) { 6553 bss->freq = freq->freq; 6554 return 0; 6555 } 6556 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6557 "%d (%s)", freq->freq, ret, strerror(-ret)); 6558nla_put_failure: 6559 nlmsg_free(msg); 6560 return -1; 6561} 6562 6563 6564static u32 sta_flags_nl80211(int flags) 6565{ 6566 u32 f = 0; 6567 6568 if (flags & WPA_STA_AUTHORIZED) 6569 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6570 if (flags & WPA_STA_WMM) 6571 f |= BIT(NL80211_STA_FLAG_WME); 6572 if (flags & WPA_STA_SHORT_PREAMBLE) 6573 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6574 if (flags & WPA_STA_MFP) 6575 f |= BIT(NL80211_STA_FLAG_MFP); 6576 if (flags & WPA_STA_TDLS_PEER) 6577 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6578 6579 return f; 6580} 6581 6582 6583static int wpa_driver_nl80211_sta_add(void *priv, 6584 struct hostapd_sta_add_params *params) 6585{ 6586 struct i802_bss *bss = priv; 6587 struct wpa_driver_nl80211_data *drv = bss->drv; 6588 struct nl_msg *msg; 6589 struct nl80211_sta_flag_update upd; 6590 int ret = -ENOBUFS; 6591 6592 if ((params->flags & WPA_STA_TDLS_PEER) && 6593 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6594 return -EOPNOTSUPP; 6595 6596 msg = nlmsg_alloc(); 6597 if (!msg) 6598 return -ENOMEM; 6599 6600 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6601 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6602 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6603 NL80211_CMD_NEW_STATION); 6604 6605 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6606 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6607 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6608 params->supp_rates); 6609 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6610 params->supp_rates_len); 6611 if (!params->set) { 6612 if (params->aid) { 6613 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6614 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6615 } else { 6616 /* 6617 * cfg80211 validates that AID is non-zero, so we have 6618 * to make this a non-zero value for the TDLS case where 6619 * a dummy STA entry is used for now. 6620 */ 6621 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6622 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6623 } 6624 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6625 params->listen_interval); 6626 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6627 params->listen_interval); 6628 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6629 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6630 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6631 } 6632 if (params->ht_capabilities) { 6633 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6634 (u8 *) params->ht_capabilities, 6635 sizeof(*params->ht_capabilities)); 6636 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6637 sizeof(*params->ht_capabilities), 6638 params->ht_capabilities); 6639 } 6640 6641 if (params->vht_capabilities) { 6642 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6643 (u8 *) params->vht_capabilities, 6644 sizeof(*params->vht_capabilities)); 6645 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6646 sizeof(*params->vht_capabilities), 6647 params->vht_capabilities); 6648 } 6649 6650 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6651 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6652 6653 if (params->ext_capab) { 6654 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6655 params->ext_capab, params->ext_capab_len); 6656 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6657 params->ext_capab_len, params->ext_capab); 6658 } 6659 6660 os_memset(&upd, 0, sizeof(upd)); 6661 upd.mask = sta_flags_nl80211(params->flags); 6662 upd.set = upd.mask; 6663 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6664 upd.set, upd.mask); 6665 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6666 6667 if (params->flags & WPA_STA_WMM) { 6668 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6669 6670 if (!wme) 6671 goto nla_put_failure; 6672 6673 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6674 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6675 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6676 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6677 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6678 WMM_QOSINFO_STA_SP_MASK); 6679 nla_nest_end(msg, wme); 6680 } 6681 6682 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6683 msg = NULL; 6684 if (ret) 6685 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6686 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6687 strerror(-ret)); 6688 if (ret == -EEXIST) 6689 ret = 0; 6690 nla_put_failure: 6691 nlmsg_free(msg); 6692 return ret; 6693} 6694 6695 6696static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6697{ 6698 struct wpa_driver_nl80211_data *drv = bss->drv; 6699 struct nl_msg *msg; 6700 int ret; 6701 6702 msg = nlmsg_alloc(); 6703 if (!msg) 6704 return -ENOMEM; 6705 6706 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6707 6708 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6709 if_nametoindex(bss->ifname)); 6710 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6711 6712 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6713 if (ret == -ENOENT) 6714 return 0; 6715 return ret; 6716 nla_put_failure: 6717 nlmsg_free(msg); 6718 return -ENOBUFS; 6719} 6720 6721 6722static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6723 int ifidx) 6724{ 6725 struct nl_msg *msg; 6726 6727 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6728 6729 /* stop listening for EAPOL on this interface */ 6730 del_ifidx(drv, ifidx); 6731 6732 msg = nlmsg_alloc(); 6733 if (!msg) 6734 goto nla_put_failure; 6735 6736 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6738 6739 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6740 return; 6741 msg = NULL; 6742 nla_put_failure: 6743 nlmsg_free(msg); 6744 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6745} 6746 6747 6748static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6749{ 6750 switch (mode) { 6751 case NL80211_IFTYPE_ADHOC: 6752 return "ADHOC"; 6753 case NL80211_IFTYPE_STATION: 6754 return "STATION"; 6755 case NL80211_IFTYPE_AP: 6756 return "AP"; 6757 case NL80211_IFTYPE_AP_VLAN: 6758 return "AP_VLAN"; 6759 case NL80211_IFTYPE_WDS: 6760 return "WDS"; 6761 case NL80211_IFTYPE_MONITOR: 6762 return "MONITOR"; 6763 case NL80211_IFTYPE_MESH_POINT: 6764 return "MESH_POINT"; 6765 case NL80211_IFTYPE_P2P_CLIENT: 6766 return "P2P_CLIENT"; 6767 case NL80211_IFTYPE_P2P_GO: 6768 return "P2P_GO"; 6769 case NL80211_IFTYPE_P2P_DEVICE: 6770 return "P2P_DEVICE"; 6771 default: 6772 return "unknown"; 6773 } 6774} 6775 6776 6777static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6778 const char *ifname, 6779 enum nl80211_iftype iftype, 6780 const u8 *addr, int wds, 6781 int (*handler)(struct nl_msg *, void *), 6782 void *arg) 6783{ 6784 struct nl_msg *msg; 6785 int ifidx; 6786 int ret = -ENOBUFS; 6787 6788 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6789 iftype, nl80211_iftype_str(iftype)); 6790 6791 msg = nlmsg_alloc(); 6792 if (!msg) 6793 return -1; 6794 6795 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6796 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 6797 goto nla_put_failure; 6798 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6799 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6800 6801 if (iftype == NL80211_IFTYPE_MONITOR) { 6802 struct nlattr *flags; 6803 6804 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6805 if (!flags) 6806 goto nla_put_failure; 6807 6808 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6809 6810 nla_nest_end(msg, flags); 6811 } else if (wds) { 6812 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6813 } 6814 6815 ret = send_and_recv_msgs(drv, msg, handler, arg); 6816 msg = NULL; 6817 if (ret) { 6818 nla_put_failure: 6819 nlmsg_free(msg); 6820 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6821 ifname, ret, strerror(-ret)); 6822 return ret; 6823 } 6824 6825 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 6826 return 0; 6827 6828 ifidx = if_nametoindex(ifname); 6829 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6830 ifname, ifidx); 6831 6832 if (ifidx <= 0) 6833 return -1; 6834 6835 /* start listening for EAPOL on this interface */ 6836 add_ifidx(drv, ifidx); 6837 6838 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6839 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6840 nl80211_remove_iface(drv, ifidx); 6841 return -1; 6842 } 6843 6844 return ifidx; 6845} 6846 6847 6848static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6849 const char *ifname, enum nl80211_iftype iftype, 6850 const u8 *addr, int wds, 6851 int (*handler)(struct nl_msg *, void *), 6852 void *arg) 6853{ 6854 int ret; 6855 6856 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 6857 arg); 6858 6859 /* if error occurred and interface exists already */ 6860 if (ret == -ENFILE && if_nametoindex(ifname)) { 6861 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6862 6863 /* Try to remove the interface that was already there. */ 6864 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6865 6866 /* Try to create the interface again */ 6867 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6868 wds, handler, arg); 6869 } 6870 6871 if (ret >= 0 && is_p2p_net_interface(iftype)) 6872 nl80211_disable_11b_rates(drv, ret, 1); 6873 6874 return ret; 6875} 6876 6877 6878static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6879{ 6880 struct ieee80211_hdr *hdr; 6881 u16 fc; 6882 union wpa_event_data event; 6883 6884 hdr = (struct ieee80211_hdr *) buf; 6885 fc = le_to_host16(hdr->frame_control); 6886 6887 os_memset(&event, 0, sizeof(event)); 6888 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6889 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6890 event.tx_status.dst = hdr->addr1; 6891 event.tx_status.data = buf; 6892 event.tx_status.data_len = len; 6893 event.tx_status.ack = ok; 6894 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6895} 6896 6897 6898static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6899 u8 *buf, size_t len) 6900{ 6901 struct ieee80211_hdr *hdr = (void *)buf; 6902 u16 fc; 6903 union wpa_event_data event; 6904 6905 if (len < sizeof(*hdr)) 6906 return; 6907 6908 fc = le_to_host16(hdr->frame_control); 6909 6910 os_memset(&event, 0, sizeof(event)); 6911 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6912 event.rx_from_unknown.addr = hdr->addr2; 6913 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6914 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6915 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6916} 6917 6918 6919static void handle_frame(struct wpa_driver_nl80211_data *drv, 6920 u8 *buf, size_t len, int datarate, int ssi_signal) 6921{ 6922 struct ieee80211_hdr *hdr; 6923 u16 fc; 6924 union wpa_event_data event; 6925 6926 hdr = (struct ieee80211_hdr *) buf; 6927 fc = le_to_host16(hdr->frame_control); 6928 6929 switch (WLAN_FC_GET_TYPE(fc)) { 6930 case WLAN_FC_TYPE_MGMT: 6931 os_memset(&event, 0, sizeof(event)); 6932 event.rx_mgmt.frame = buf; 6933 event.rx_mgmt.frame_len = len; 6934 event.rx_mgmt.datarate = datarate; 6935 event.rx_mgmt.ssi_signal = ssi_signal; 6936 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6937 break; 6938 case WLAN_FC_TYPE_CTRL: 6939 /* can only get here with PS-Poll frames */ 6940 wpa_printf(MSG_DEBUG, "CTRL"); 6941 from_unknown_sta(drv, buf, len); 6942 break; 6943 case WLAN_FC_TYPE_DATA: 6944 from_unknown_sta(drv, buf, len); 6945 break; 6946 } 6947} 6948 6949 6950static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6951{ 6952 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6953 int len; 6954 unsigned char buf[3000]; 6955 struct ieee80211_radiotap_iterator iter; 6956 int ret; 6957 int datarate = 0, ssi_signal = 0; 6958 int injected = 0, failed = 0, rxflags = 0; 6959 6960 len = recv(sock, buf, sizeof(buf), 0); 6961 if (len < 0) { 6962 perror("recv"); 6963 return; 6964 } 6965 6966 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6967 printf("received invalid radiotap frame\n"); 6968 return; 6969 } 6970 6971 while (1) { 6972 ret = ieee80211_radiotap_iterator_next(&iter); 6973 if (ret == -ENOENT) 6974 break; 6975 if (ret) { 6976 printf("received invalid radiotap frame (%d)\n", ret); 6977 return; 6978 } 6979 switch (iter.this_arg_index) { 6980 case IEEE80211_RADIOTAP_FLAGS: 6981 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6982 len -= 4; 6983 break; 6984 case IEEE80211_RADIOTAP_RX_FLAGS: 6985 rxflags = 1; 6986 break; 6987 case IEEE80211_RADIOTAP_TX_FLAGS: 6988 injected = 1; 6989 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6990 IEEE80211_RADIOTAP_F_TX_FAIL; 6991 break; 6992 case IEEE80211_RADIOTAP_DATA_RETRIES: 6993 break; 6994 case IEEE80211_RADIOTAP_CHANNEL: 6995 /* TODO: convert from freq/flags to channel number */ 6996 break; 6997 case IEEE80211_RADIOTAP_RATE: 6998 datarate = *iter.this_arg * 5; 6999 break; 7000 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 7001 ssi_signal = (s8) *iter.this_arg; 7002 break; 7003 } 7004 } 7005 7006 if (rxflags && injected) 7007 return; 7008 7009 if (!injected) 7010 handle_frame(drv, buf + iter.max_length, 7011 len - iter.max_length, datarate, ssi_signal); 7012 else 7013 handle_tx_callback(drv->ctx, buf + iter.max_length, 7014 len - iter.max_length, !failed); 7015} 7016 7017 7018/* 7019 * we post-process the filter code later and rewrite 7020 * this to the offset to the last instruction 7021 */ 7022#define PASS 0xFF 7023#define FAIL 0xFE 7024 7025static struct sock_filter msock_filter_insns[] = { 7026 /* 7027 * do a little-endian load of the radiotap length field 7028 */ 7029 /* load lower byte into A */ 7030 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 7031 /* put it into X (== index register) */ 7032 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7033 /* load upper byte into A */ 7034 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 7035 /* left-shift it by 8 */ 7036 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 7037 /* or with X */ 7038 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 7039 /* put result into X */ 7040 BPF_STMT(BPF_MISC| BPF_TAX, 0), 7041 7042 /* 7043 * Allow management frames through, this also gives us those 7044 * management frames that we sent ourselves with status 7045 */ 7046 /* load the lower byte of the IEEE 802.11 frame control field */ 7047 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7048 /* mask off frame type and version */ 7049 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 7050 /* accept frame if it's both 0, fall through otherwise */ 7051 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 7052 7053 /* 7054 * TODO: add a bit to radiotap RX flags that indicates 7055 * that the sending station is not associated, then 7056 * add a filter here that filters on our DA and that flag 7057 * to allow us to deauth frames to that bad station. 7058 * 7059 * For now allow all To DS data frames through. 7060 */ 7061 /* load the IEEE 802.11 frame control field */ 7062 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 7063 /* mask off frame type, version and DS status */ 7064 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 7065 /* accept frame if version 0, type 2 and To DS, fall through otherwise 7066 */ 7067 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 7068 7069#if 0 7070 /* 7071 * drop non-data frames 7072 */ 7073 /* load the lower byte of the frame control field */ 7074 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7075 /* mask off QoS bit */ 7076 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 7077 /* drop non-data frames */ 7078 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 7079#endif 7080 /* load the upper byte of the frame control field */ 7081 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 7082 /* mask off toDS/fromDS */ 7083 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 7084 /* accept WDS frames */ 7085 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 7086 7087 /* 7088 * add header length to index 7089 */ 7090 /* load the lower byte of the frame control field */ 7091 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 7092 /* mask off QoS bit */ 7093 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 7094 /* right shift it by 6 to give 0 or 2 */ 7095 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 7096 /* add data frame header length */ 7097 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 7098 /* add index, was start of 802.11 header */ 7099 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 7100 /* move to index, now start of LL header */ 7101 BPF_STMT(BPF_MISC | BPF_TAX, 0), 7102 7103 /* 7104 * Accept empty data frames, we use those for 7105 * polling activity. 7106 */ 7107 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 7108 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 7109 7110 /* 7111 * Accept EAPOL frames 7112 */ 7113 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 7114 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 7115 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 7116 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 7117 7118 /* keep these last two statements or change the code below */ 7119 /* return 0 == "DROP" */ 7120 BPF_STMT(BPF_RET | BPF_K, 0), 7121 /* return ~0 == "keep all" */ 7122 BPF_STMT(BPF_RET | BPF_K, ~0), 7123}; 7124 7125static struct sock_fprog msock_filter = { 7126 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 7127 .filter = msock_filter_insns, 7128}; 7129 7130 7131static int add_monitor_filter(int s) 7132{ 7133 int idx; 7134 7135 /* rewrite all PASS/FAIL jump offsets */ 7136 for (idx = 0; idx < msock_filter.len; idx++) { 7137 struct sock_filter *insn = &msock_filter_insns[idx]; 7138 7139 if (BPF_CLASS(insn->code) == BPF_JMP) { 7140 if (insn->code == (BPF_JMP|BPF_JA)) { 7141 if (insn->k == PASS) 7142 insn->k = msock_filter.len - idx - 2; 7143 else if (insn->k == FAIL) 7144 insn->k = msock_filter.len - idx - 3; 7145 } 7146 7147 if (insn->jt == PASS) 7148 insn->jt = msock_filter.len - idx - 2; 7149 else if (insn->jt == FAIL) 7150 insn->jt = msock_filter.len - idx - 3; 7151 7152 if (insn->jf == PASS) 7153 insn->jf = msock_filter.len - idx - 2; 7154 else if (insn->jf == FAIL) 7155 insn->jf = msock_filter.len - idx - 3; 7156 } 7157 } 7158 7159 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 7160 &msock_filter, sizeof(msock_filter))) { 7161 perror("SO_ATTACH_FILTER"); 7162 return -1; 7163 } 7164 7165 return 0; 7166} 7167 7168 7169static void nl80211_remove_monitor_interface( 7170 struct wpa_driver_nl80211_data *drv) 7171{ 7172 drv->monitor_refcount--; 7173 if (drv->monitor_refcount > 0) 7174 return; 7175 7176 if (drv->monitor_ifidx >= 0) { 7177 nl80211_remove_iface(drv, drv->monitor_ifidx); 7178 drv->monitor_ifidx = -1; 7179 } 7180 if (drv->monitor_sock >= 0) { 7181 eloop_unregister_read_sock(drv->monitor_sock); 7182 close(drv->monitor_sock); 7183 drv->monitor_sock = -1; 7184 } 7185} 7186 7187 7188static int 7189nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 7190{ 7191 char buf[IFNAMSIZ]; 7192 struct sockaddr_ll ll; 7193 int optval; 7194 socklen_t optlen; 7195 7196 if (drv->monitor_ifidx >= 0) { 7197 drv->monitor_refcount++; 7198 return 0; 7199 } 7200 7201 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 7202 /* 7203 * P2P interface name is of the format p2p-%s-%d. For monitor 7204 * interface name corresponding to P2P GO, replace "p2p-" with 7205 * "mon-" to retain the same interface name length and to 7206 * indicate that it is a monitor interface. 7207 */ 7208 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 7209 } else { 7210 /* Non-P2P interface with AP functionality. */ 7211 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 7212 } 7213 7214 buf[IFNAMSIZ - 1] = '\0'; 7215 7216 drv->monitor_ifidx = 7217 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 7218 0, NULL, NULL); 7219 7220 if (drv->monitor_ifidx == -EOPNOTSUPP) { 7221 /* 7222 * This is backward compatibility for a few versions of 7223 * the kernel only that didn't advertise the right 7224 * attributes for the only driver that then supported 7225 * AP mode w/o monitor -- ath6kl. 7226 */ 7227 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 7228 "monitor interface type - try to run without it"); 7229 drv->device_ap_sme = 1; 7230 } 7231 7232 if (drv->monitor_ifidx < 0) 7233 return -1; 7234 7235 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 7236 goto error; 7237 7238 memset(&ll, 0, sizeof(ll)); 7239 ll.sll_family = AF_PACKET; 7240 ll.sll_ifindex = drv->monitor_ifidx; 7241 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 7242 if (drv->monitor_sock < 0) { 7243 perror("socket[PF_PACKET,SOCK_RAW]"); 7244 goto error; 7245 } 7246 7247 if (add_monitor_filter(drv->monitor_sock)) { 7248 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 7249 "interface; do filtering in user space"); 7250 /* This works, but will cost in performance. */ 7251 } 7252 7253 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 7254 perror("monitor socket bind"); 7255 goto error; 7256 } 7257 7258 optlen = sizeof(optval); 7259 optval = 20; 7260 if (setsockopt 7261 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 7262 perror("Failed to set socket priority"); 7263 goto error; 7264 } 7265 7266 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 7267 drv, NULL)) { 7268 printf("Could not register monitor read socket\n"); 7269 goto error; 7270 } 7271 7272 return 0; 7273 error: 7274 nl80211_remove_monitor_interface(drv); 7275 return -1; 7276} 7277 7278 7279static int nl80211_setup_ap(struct i802_bss *bss) 7280{ 7281 struct wpa_driver_nl80211_data *drv = bss->drv; 7282 7283 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 7284 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 7285 7286 /* 7287 * Disable Probe Request reporting unless we need it in this way for 7288 * devices that include the AP SME, in the other case (unless using 7289 * monitor iface) we'll get it through the nl_mgmt socket instead. 7290 */ 7291 if (!drv->device_ap_sme) 7292 wpa_driver_nl80211_probe_req_report(bss, 0); 7293 7294 if (!drv->device_ap_sme && !drv->use_monitor) 7295 if (nl80211_mgmt_subscribe_ap(bss)) 7296 return -1; 7297 7298 if (drv->device_ap_sme && !drv->use_monitor) 7299 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7300 return -1; 7301 7302 if (!drv->device_ap_sme && drv->use_monitor && 7303 nl80211_create_monitor_interface(drv) && 7304 !drv->device_ap_sme) 7305 return -1; 7306 7307#ifdef ANDROID_P2P 7308 if (drv->device_ap_sme && drv->use_monitor) 7309 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 7310 return -1; 7311 7312 if (drv->use_monitor && 7313 nl80211_create_monitor_interface(drv)) 7314 return -1; 7315#endif 7316 7317 if (drv->device_ap_sme && 7318 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 7319 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 7320 "Probe Request frame reporting in AP mode"); 7321 /* Try to survive without this */ 7322 } 7323 7324 return 0; 7325} 7326 7327 7328static void nl80211_teardown_ap(struct i802_bss *bss) 7329{ 7330 struct wpa_driver_nl80211_data *drv = bss->drv; 7331 7332 if (drv->device_ap_sme) { 7333 wpa_driver_nl80211_probe_req_report(bss, 0); 7334 if (!drv->use_monitor) 7335 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 7336 } else if (drv->use_monitor) 7337 nl80211_remove_monitor_interface(drv); 7338 else 7339 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 7340 7341 bss->beacon_set = 0; 7342} 7343 7344 7345static int nl80211_send_eapol_data(struct i802_bss *bss, 7346 const u8 *addr, const u8 *data, 7347 size_t data_len) 7348{ 7349 struct sockaddr_ll ll; 7350 int ret; 7351 7352 if (bss->drv->eapol_tx_sock < 0) { 7353 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 7354 return -1; 7355 } 7356 7357 os_memset(&ll, 0, sizeof(ll)); 7358 ll.sll_family = AF_PACKET; 7359 ll.sll_ifindex = bss->ifindex; 7360 ll.sll_protocol = htons(ETH_P_PAE); 7361 ll.sll_halen = ETH_ALEN; 7362 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 7363 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 7364 (struct sockaddr *) &ll, sizeof(ll)); 7365 if (ret < 0) 7366 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 7367 strerror(errno)); 7368 7369 return ret; 7370} 7371 7372 7373static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7374 7375static int wpa_driver_nl80211_hapd_send_eapol( 7376 void *priv, const u8 *addr, const u8 *data, 7377 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7378{ 7379 struct i802_bss *bss = priv; 7380 struct wpa_driver_nl80211_data *drv = bss->drv; 7381 struct ieee80211_hdr *hdr; 7382 size_t len; 7383 u8 *pos; 7384 int res; 7385 int qos = flags & WPA_STA_WMM; 7386#ifndef ANDROID_P2P 7387 if (drv->device_ap_sme || !drv->use_monitor) 7388#else 7389 if (drv->device_ap_sme && !drv->use_monitor) 7390#endif 7391 return nl80211_send_eapol_data(bss, addr, data, data_len); 7392 7393 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7394 data_len; 7395 hdr = os_zalloc(len); 7396 if (hdr == NULL) { 7397 printf("malloc() failed for i802_send_data(len=%lu)\n", 7398 (unsigned long) len); 7399 return -1; 7400 } 7401 7402 hdr->frame_control = 7403 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7404 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7405 if (encrypt) 7406 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7407 if (qos) { 7408 hdr->frame_control |= 7409 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7410 } 7411 7412 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7413 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7414 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7415 pos = (u8 *) (hdr + 1); 7416 7417 if (qos) { 7418 /* Set highest priority in QoS header */ 7419 pos[0] = 7; 7420 pos[1] = 0; 7421 pos += 2; 7422 } 7423 7424 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7425 pos += sizeof(rfc1042_header); 7426 WPA_PUT_BE16(pos, ETH_P_PAE); 7427 pos += 2; 7428 memcpy(pos, data, data_len); 7429 7430 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7431 0, 0, 0, 0); 7432 if (res < 0) { 7433 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7434 "failed: %d (%s)", 7435 (unsigned long) len, errno, strerror(errno)); 7436 } 7437 os_free(hdr); 7438 7439 return res; 7440} 7441 7442 7443static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7444 int total_flags, 7445 int flags_or, int flags_and) 7446{ 7447 struct i802_bss *bss = priv; 7448 struct wpa_driver_nl80211_data *drv = bss->drv; 7449 struct nl_msg *msg; 7450 struct nlattr *flags; 7451 struct nl80211_sta_flag_update upd; 7452 7453 msg = nlmsg_alloc(); 7454 if (!msg) 7455 return -ENOMEM; 7456 7457 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7458 7459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7460 if_nametoindex(bss->ifname)); 7461 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7462 7463 /* 7464 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7465 * can be removed eventually. 7466 */ 7467 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7468 if (!flags) 7469 goto nla_put_failure; 7470 if (total_flags & WPA_STA_AUTHORIZED) 7471 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7472 7473 if (total_flags & WPA_STA_WMM) 7474 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7475 7476 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7477 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7478 7479 if (total_flags & WPA_STA_MFP) 7480 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7481 7482 if (total_flags & WPA_STA_TDLS_PEER) 7483 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7484 7485 nla_nest_end(msg, flags); 7486 7487 os_memset(&upd, 0, sizeof(upd)); 7488 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7489 upd.set = sta_flags_nl80211(flags_or); 7490 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7491 7492 return send_and_recv_msgs(drv, msg, NULL, NULL); 7493 nla_put_failure: 7494 nlmsg_free(msg); 7495 return -ENOBUFS; 7496} 7497 7498 7499static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7500 struct wpa_driver_associate_params *params) 7501{ 7502 enum nl80211_iftype nlmode, old_mode; 7503 struct hostapd_freq_params freq = { 7504 .freq = params->freq, 7505 }; 7506 7507 if (params->p2p) { 7508 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7509 "group (GO)"); 7510 nlmode = NL80211_IFTYPE_P2P_GO; 7511 } else 7512 nlmode = NL80211_IFTYPE_AP; 7513 7514 old_mode = drv->nlmode; 7515 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7516 nl80211_remove_monitor_interface(drv); 7517 return -1; 7518 } 7519 7520 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7521 if (old_mode != nlmode) 7522 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7523 nl80211_remove_monitor_interface(drv); 7524 return -1; 7525 } 7526 7527 return 0; 7528} 7529 7530 7531static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7532{ 7533 struct nl_msg *msg; 7534 int ret = -1; 7535 7536 msg = nlmsg_alloc(); 7537 if (!msg) 7538 return -1; 7539 7540 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7541 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7542 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7543 msg = NULL; 7544 if (ret) { 7545 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7546 "(%s)", ret, strerror(-ret)); 7547 goto nla_put_failure; 7548 } 7549 7550 ret = 0; 7551 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7552 7553nla_put_failure: 7554 nlmsg_free(msg); 7555 return ret; 7556} 7557 7558 7559static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7560 struct wpa_driver_associate_params *params) 7561{ 7562 struct nl_msg *msg; 7563 int ret = -1; 7564 int count = 0; 7565 7566 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7567 7568 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7569 NL80211_IFTYPE_ADHOC)) { 7570 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7571 "IBSS mode"); 7572 return -1; 7573 } 7574 7575retry: 7576 msg = nlmsg_alloc(); 7577 if (!msg) 7578 return -1; 7579 7580 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7581 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7582 7583 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7584 goto nla_put_failure; 7585 7586 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7587 params->ssid, params->ssid_len); 7588 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7589 params->ssid); 7590 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7591 drv->ssid_len = params->ssid_len; 7592 7593 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7594 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7595 7596 ret = nl80211_set_conn_keys(params, msg); 7597 if (ret) 7598 goto nla_put_failure; 7599 7600 if (params->bssid && params->fixed_bssid) { 7601 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7602 MAC2STR(params->bssid)); 7603 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7604 } 7605 7606 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7607 params->key_mgmt_suite == KEY_MGMT_PSK || 7608 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7609 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7610 wpa_printf(MSG_DEBUG, " * control port"); 7611 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7612 } 7613 7614 if (params->wpa_ie) { 7615 wpa_hexdump(MSG_DEBUG, 7616 " * Extra IEs for Beacon/Probe Response frames", 7617 params->wpa_ie, params->wpa_ie_len); 7618 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7619 params->wpa_ie); 7620 } 7621 7622 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7623 msg = NULL; 7624 if (ret) { 7625 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7626 ret, strerror(-ret)); 7627 count++; 7628 if (ret == -EALREADY && count == 1) { 7629 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7630 "forced leave"); 7631 nl80211_leave_ibss(drv); 7632 nlmsg_free(msg); 7633 goto retry; 7634 } 7635 7636 goto nla_put_failure; 7637 } 7638 ret = 0; 7639 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7640 7641nla_put_failure: 7642 nlmsg_free(msg); 7643 return ret; 7644} 7645 7646 7647static int wpa_driver_nl80211_try_connect( 7648 struct wpa_driver_nl80211_data *drv, 7649 struct wpa_driver_associate_params *params) 7650{ 7651 struct nl_msg *msg; 7652 enum nl80211_auth_type type; 7653 int ret = 0; 7654 int algs; 7655 7656 msg = nlmsg_alloc(); 7657 if (!msg) 7658 return -1; 7659 7660 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7661 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7662 7663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7664 if (params->bssid) { 7665 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7666 MAC2STR(params->bssid)); 7667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7668 } 7669 if (params->freq) { 7670 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7671 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7672 } 7673 if (params->bg_scan_period >= 0) { 7674 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7675 params->bg_scan_period); 7676 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7677 params->bg_scan_period); 7678 } 7679 if (params->ssid) { 7680 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7681 params->ssid, params->ssid_len); 7682 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7683 params->ssid); 7684 if (params->ssid_len > sizeof(drv->ssid)) 7685 goto nla_put_failure; 7686 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7687 drv->ssid_len = params->ssid_len; 7688 } 7689 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7690 if (params->wpa_ie) 7691 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7692 params->wpa_ie); 7693 7694 algs = 0; 7695 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7696 algs++; 7697 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7698 algs++; 7699 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7700 algs++; 7701 if (algs > 1) { 7702 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7703 "selection"); 7704 goto skip_auth_type; 7705 } 7706 7707 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7708 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7709 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7710 type = NL80211_AUTHTYPE_SHARED_KEY; 7711 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7712 type = NL80211_AUTHTYPE_NETWORK_EAP; 7713 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7714 type = NL80211_AUTHTYPE_FT; 7715 else 7716 goto nla_put_failure; 7717 7718 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7719 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7720 7721skip_auth_type: 7722 if (params->wpa_proto) { 7723 enum nl80211_wpa_versions ver = 0; 7724 7725 if (params->wpa_proto & WPA_PROTO_WPA) 7726 ver |= NL80211_WPA_VERSION_1; 7727 if (params->wpa_proto & WPA_PROTO_RSN) 7728 ver |= NL80211_WPA_VERSION_2; 7729 7730 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7731 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7732 } 7733 7734 if (params->pairwise_suite != CIPHER_NONE) { 7735 int cipher; 7736 7737 switch (params->pairwise_suite) { 7738 case CIPHER_SMS4: 7739 cipher = WLAN_CIPHER_SUITE_SMS4; 7740 break; 7741 case CIPHER_WEP40: 7742 cipher = WLAN_CIPHER_SUITE_WEP40; 7743 break; 7744 case CIPHER_WEP104: 7745 cipher = WLAN_CIPHER_SUITE_WEP104; 7746 break; 7747 case CIPHER_CCMP: 7748 cipher = WLAN_CIPHER_SUITE_CCMP; 7749 break; 7750 case CIPHER_GCMP: 7751 cipher = WLAN_CIPHER_SUITE_GCMP; 7752 break; 7753 case CIPHER_TKIP: 7754 default: 7755 cipher = WLAN_CIPHER_SUITE_TKIP; 7756 break; 7757 } 7758 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7759 } 7760 7761 if (params->group_suite != CIPHER_NONE) { 7762 int cipher; 7763 7764 switch (params->group_suite) { 7765 case CIPHER_SMS4: 7766 cipher = WLAN_CIPHER_SUITE_SMS4; 7767 break; 7768 case CIPHER_WEP40: 7769 cipher = WLAN_CIPHER_SUITE_WEP40; 7770 break; 7771 case CIPHER_WEP104: 7772 cipher = WLAN_CIPHER_SUITE_WEP104; 7773 break; 7774 case CIPHER_CCMP: 7775 cipher = WLAN_CIPHER_SUITE_CCMP; 7776 break; 7777 case CIPHER_GCMP: 7778 cipher = WLAN_CIPHER_SUITE_GCMP; 7779 break; 7780 case CIPHER_TKIP: 7781 default: 7782 cipher = WLAN_CIPHER_SUITE_TKIP; 7783 break; 7784 } 7785 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7786 } 7787 7788 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7789 params->key_mgmt_suite == KEY_MGMT_PSK || 7790 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7791 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7792 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7793 int mgmt = WLAN_AKM_SUITE_PSK; 7794 7795 switch (params->key_mgmt_suite) { 7796 case KEY_MGMT_CCKM: 7797 mgmt = WLAN_AKM_SUITE_CCKM; 7798 break; 7799 case KEY_MGMT_802_1X: 7800 mgmt = WLAN_AKM_SUITE_8021X; 7801 break; 7802 case KEY_MGMT_FT_802_1X: 7803 mgmt = WLAN_AKM_SUITE_FT_8021X; 7804 break; 7805 case KEY_MGMT_FT_PSK: 7806 mgmt = WLAN_AKM_SUITE_FT_PSK; 7807 break; 7808 case KEY_MGMT_PSK: 7809 default: 7810 mgmt = WLAN_AKM_SUITE_PSK; 7811 break; 7812 } 7813 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7814 } 7815 7816#ifdef CONFIG_IEEE80211W 7817 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7818 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7819#endif /* CONFIG_IEEE80211W */ 7820 7821 if (params->disable_ht) 7822 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7823 7824 if (params->htcaps && params->htcaps_mask) { 7825 int sz = sizeof(struct ieee80211_ht_capabilities); 7826 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7827 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7828 params->htcaps_mask); 7829 } 7830 7831#ifdef CONFIG_VHT_OVERRIDES 7832 if (params->disable_vht) { 7833 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7834 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7835 } 7836 7837 if (params->vhtcaps && params->vhtcaps_mask) { 7838 int sz = sizeof(struct ieee80211_vht_capabilities); 7839 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7840 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7841 params->vhtcaps_mask); 7842 } 7843#endif /* CONFIG_VHT_OVERRIDES */ 7844 7845 ret = nl80211_set_conn_keys(params, msg); 7846 if (ret) 7847 goto nla_put_failure; 7848 7849 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7850 msg = NULL; 7851 if (ret) { 7852 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7853 "(%s)", ret, strerror(-ret)); 7854 goto nla_put_failure; 7855 } 7856 ret = 0; 7857 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7858 7859nla_put_failure: 7860 nlmsg_free(msg); 7861 return ret; 7862 7863} 7864 7865 7866static int wpa_driver_nl80211_connect( 7867 struct wpa_driver_nl80211_data *drv, 7868 struct wpa_driver_associate_params *params) 7869{ 7870 int ret = wpa_driver_nl80211_try_connect(drv, params); 7871 if (ret == -EALREADY) { 7872 /* 7873 * cfg80211 does not currently accept new connections if 7874 * we are already connected. As a workaround, force 7875 * disconnection and try again. 7876 */ 7877 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7878 "disconnecting before reassociation " 7879 "attempt"); 7880 if (wpa_driver_nl80211_disconnect( 7881 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7882 return -1; 7883 ret = wpa_driver_nl80211_try_connect(drv, params); 7884 } 7885 return ret; 7886} 7887 7888 7889static int wpa_driver_nl80211_associate( 7890 void *priv, struct wpa_driver_associate_params *params) 7891{ 7892 struct i802_bss *bss = priv; 7893 struct wpa_driver_nl80211_data *drv = bss->drv; 7894 int ret = -1; 7895 struct nl_msg *msg; 7896 7897 if (params->mode == IEEE80211_MODE_AP) 7898 return wpa_driver_nl80211_ap(drv, params); 7899 7900 if (params->mode == IEEE80211_MODE_IBSS) 7901 return wpa_driver_nl80211_ibss(drv, params); 7902 7903 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7904 enum nl80211_iftype nlmode = params->p2p ? 7905 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7906 7907 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7908 return -1; 7909 return wpa_driver_nl80211_connect(drv, params); 7910 } 7911 7912 nl80211_mark_disconnected(drv); 7913 7914 msg = nlmsg_alloc(); 7915 if (!msg) 7916 return -1; 7917 7918 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7919 drv->ifindex); 7920 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7921 7922 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7923 if (params->bssid) { 7924 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7925 MAC2STR(params->bssid)); 7926 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7927 } 7928 if (params->freq) { 7929 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7930 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7931 drv->assoc_freq = params->freq; 7932 } else 7933 drv->assoc_freq = 0; 7934 if (params->bg_scan_period >= 0) { 7935 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7936 params->bg_scan_period); 7937 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7938 params->bg_scan_period); 7939 } 7940 if (params->ssid) { 7941 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7942 params->ssid, params->ssid_len); 7943 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7944 params->ssid); 7945 if (params->ssid_len > sizeof(drv->ssid)) 7946 goto nla_put_failure; 7947 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7948 drv->ssid_len = params->ssid_len; 7949 } 7950 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7951 if (params->wpa_ie) 7952 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7953 params->wpa_ie); 7954 7955 if (params->pairwise_suite != CIPHER_NONE) { 7956 int cipher; 7957 7958 switch (params->pairwise_suite) { 7959 case CIPHER_WEP40: 7960 cipher = WLAN_CIPHER_SUITE_WEP40; 7961 break; 7962 case CIPHER_WEP104: 7963 cipher = WLAN_CIPHER_SUITE_WEP104; 7964 break; 7965 case CIPHER_CCMP: 7966 cipher = WLAN_CIPHER_SUITE_CCMP; 7967 break; 7968 case CIPHER_GCMP: 7969 cipher = WLAN_CIPHER_SUITE_GCMP; 7970 break; 7971 case CIPHER_TKIP: 7972 default: 7973 cipher = WLAN_CIPHER_SUITE_TKIP; 7974 break; 7975 } 7976 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7977 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7978 } 7979 7980 if (params->group_suite != CIPHER_NONE) { 7981 int cipher; 7982 7983 switch (params->group_suite) { 7984 case CIPHER_WEP40: 7985 cipher = WLAN_CIPHER_SUITE_WEP40; 7986 break; 7987 case CIPHER_WEP104: 7988 cipher = WLAN_CIPHER_SUITE_WEP104; 7989 break; 7990 case CIPHER_CCMP: 7991 cipher = WLAN_CIPHER_SUITE_CCMP; 7992 break; 7993 case CIPHER_GCMP: 7994 cipher = WLAN_CIPHER_SUITE_GCMP; 7995 break; 7996 case CIPHER_TKIP: 7997 default: 7998 cipher = WLAN_CIPHER_SUITE_TKIP; 7999 break; 8000 } 8001 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 8002 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 8003 } 8004 8005#ifdef CONFIG_IEEE80211W 8006 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 8007 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 8008#endif /* CONFIG_IEEE80211W */ 8009 8010 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 8011 8012 if (params->prev_bssid) { 8013 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 8014 MAC2STR(params->prev_bssid)); 8015 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 8016 params->prev_bssid); 8017 } 8018 8019 if (params->disable_ht) 8020 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 8021 8022 if (params->htcaps && params->htcaps_mask) { 8023 int sz = sizeof(struct ieee80211_ht_capabilities); 8024 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 8025 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 8026 params->htcaps_mask); 8027 } 8028 8029#ifdef CONFIG_VHT_OVERRIDES 8030 if (params->disable_vht) { 8031 wpa_printf(MSG_DEBUG, " * VHT disabled"); 8032 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 8033 } 8034 8035 if (params->vhtcaps && params->vhtcaps_mask) { 8036 int sz = sizeof(struct ieee80211_vht_capabilities); 8037 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 8038 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 8039 params->vhtcaps_mask); 8040 } 8041#endif /* CONFIG_VHT_OVERRIDES */ 8042 8043 if (params->p2p) 8044 wpa_printf(MSG_DEBUG, " * P2P group"); 8045 8046 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8047 msg = NULL; 8048 if (ret) { 8049 wpa_dbg(drv->ctx, MSG_DEBUG, 8050 "nl80211: MLME command failed (assoc): ret=%d (%s)", 8051 ret, strerror(-ret)); 8052 nl80211_dump_scan(drv); 8053 goto nla_put_failure; 8054 } 8055 ret = 0; 8056 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 8057 "successfully"); 8058 8059nla_put_failure: 8060 nlmsg_free(msg); 8061 return ret; 8062} 8063 8064 8065static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 8066 int ifindex, enum nl80211_iftype mode) 8067{ 8068 struct nl_msg *msg; 8069 int ret = -ENOBUFS; 8070 8071 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 8072 ifindex, mode, nl80211_iftype_str(mode)); 8073 8074 msg = nlmsg_alloc(); 8075 if (!msg) 8076 return -ENOMEM; 8077 8078 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 8079 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0) 8080 goto nla_put_failure; 8081 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 8082 8083 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8084 msg = NULL; 8085 if (!ret) 8086 return 0; 8087nla_put_failure: 8088 nlmsg_free(msg); 8089 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 8090 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 8091 return ret; 8092} 8093 8094 8095static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 8096 enum nl80211_iftype nlmode) 8097{ 8098 struct wpa_driver_nl80211_data *drv = bss->drv; 8099 int ret = -1; 8100 int i; 8101 int was_ap = is_ap_interface(drv->nlmode); 8102 int res; 8103 8104 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 8105 if (res && nlmode == nl80211_get_ifmode(bss)) 8106 res = 0; 8107 8108 if (res == 0) { 8109 drv->nlmode = nlmode; 8110 ret = 0; 8111 goto done; 8112 } 8113 8114 if (res == -ENODEV) 8115 return -1; 8116 8117 if (nlmode == drv->nlmode) { 8118 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 8119 "requested mode - ignore error"); 8120 ret = 0; 8121 goto done; /* Already in the requested mode */ 8122 } 8123 8124 /* mac80211 doesn't allow mode changes while the device is up, so 8125 * take the device down, try to set the mode again, and bring the 8126 * device back up. 8127 */ 8128 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 8129 "interface down"); 8130 for (i = 0; i < 10; i++) { 8131 res = i802_set_iface_flags(bss, 0); 8132 if (res == -EACCES || res == -ENODEV) 8133 break; 8134 if (res == 0) { 8135 /* Try to set the mode again while the interface is 8136 * down */ 8137 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 8138 if (ret == -EACCES) 8139 break; 8140 res = i802_set_iface_flags(bss, 1); 8141 if (res && !ret) 8142 ret = -1; 8143 else if (ret != -EBUSY) 8144 break; 8145 } else 8146 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 8147 "interface down"); 8148 os_sleep(0, 100000); 8149 } 8150 8151 if (!ret) { 8152 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 8153 "interface is down"); 8154 drv->nlmode = nlmode; 8155 drv->ignore_if_down_event = 1; 8156 } 8157 8158done: 8159 if (ret) { 8160 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 8161 "from %d failed", nlmode, drv->nlmode); 8162 return ret; 8163 } 8164 8165 if (is_p2p_net_interface(nlmode)) 8166 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 8167 else if (drv->disabled_11b_rates) 8168 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 8169 8170 if (is_ap_interface(nlmode)) { 8171 nl80211_mgmt_unsubscribe(bss, "start AP"); 8172 /* Setup additional AP mode functionality if needed */ 8173 if (nl80211_setup_ap(bss)) 8174 return -1; 8175 } else if (was_ap) { 8176 /* Remove additional AP mode functionality */ 8177 nl80211_teardown_ap(bss); 8178 } else { 8179 nl80211_mgmt_unsubscribe(bss, "mode change"); 8180 } 8181 8182 if (!bss->in_deinit && !is_ap_interface(nlmode) && 8183 nl80211_mgmt_subscribe_non_ap(bss) < 0) 8184 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 8185 "frame processing - ignore for now"); 8186 8187 return 0; 8188} 8189 8190 8191static int wpa_driver_nl80211_get_capa(void *priv, 8192 struct wpa_driver_capa *capa) 8193{ 8194 struct i802_bss *bss = priv; 8195 struct wpa_driver_nl80211_data *drv = bss->drv; 8196 if (!drv->has_capability) 8197 return -1; 8198 os_memcpy(capa, &drv->capa, sizeof(*capa)); 8199 if (drv->extended_capa && drv->extended_capa_mask) { 8200 capa->extended_capa = drv->extended_capa; 8201 capa->extended_capa_mask = drv->extended_capa_mask; 8202 capa->extended_capa_len = drv->extended_capa_len; 8203 } 8204 8205 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 8206 !drv->allow_p2p_device) { 8207 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); 8208 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; 8209 } 8210 8211 return 0; 8212} 8213 8214 8215static int wpa_driver_nl80211_set_operstate(void *priv, int state) 8216{ 8217 struct i802_bss *bss = priv; 8218 struct wpa_driver_nl80211_data *drv = bss->drv; 8219 8220 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 8221 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 8222 drv->operstate = state; 8223 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 8224 state ? IF_OPER_UP : IF_OPER_DORMANT); 8225} 8226 8227 8228static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 8229{ 8230 struct i802_bss *bss = priv; 8231 struct wpa_driver_nl80211_data *drv = bss->drv; 8232 struct nl_msg *msg; 8233 struct nl80211_sta_flag_update upd; 8234 8235 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 8236 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 8237 8238 msg = nlmsg_alloc(); 8239 if (!msg) 8240 return -ENOMEM; 8241 8242 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8243 8244 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8245 if_nametoindex(bss->ifname)); 8246 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 8247 8248 os_memset(&upd, 0, sizeof(upd)); 8249 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 8250 if (authorized) 8251 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 8252 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 8253 8254 return send_and_recv_msgs(drv, msg, NULL, NULL); 8255 nla_put_failure: 8256 nlmsg_free(msg); 8257 return -ENOBUFS; 8258} 8259 8260 8261/* Set kernel driver on given frequency (MHz) */ 8262static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 8263{ 8264 struct i802_bss *bss = priv; 8265 return wpa_driver_nl80211_set_freq(bss, freq); 8266} 8267 8268 8269#if defined(HOSTAPD) || defined(CONFIG_AP) 8270 8271static inline int min_int(int a, int b) 8272{ 8273 if (a < b) 8274 return a; 8275 return b; 8276} 8277 8278 8279static int get_key_handler(struct nl_msg *msg, void *arg) 8280{ 8281 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8282 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8283 8284 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8285 genlmsg_attrlen(gnlh, 0), NULL); 8286 8287 /* 8288 * TODO: validate the key index and mac address! 8289 * Otherwise, there's a race condition as soon as 8290 * the kernel starts sending key notifications. 8291 */ 8292 8293 if (tb[NL80211_ATTR_KEY_SEQ]) 8294 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 8295 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 8296 return NL_SKIP; 8297} 8298 8299 8300static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 8301 int idx, u8 *seq) 8302{ 8303 struct i802_bss *bss = priv; 8304 struct wpa_driver_nl80211_data *drv = bss->drv; 8305 struct nl_msg *msg; 8306 8307 msg = nlmsg_alloc(); 8308 if (!msg) 8309 return -ENOMEM; 8310 8311 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 8312 8313 if (addr) 8314 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8315 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 8316 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 8317 8318 memset(seq, 0, 6); 8319 8320 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 8321 nla_put_failure: 8322 nlmsg_free(msg); 8323 return -ENOBUFS; 8324} 8325 8326 8327static int i802_set_rts(void *priv, int rts) 8328{ 8329 struct i802_bss *bss = priv; 8330 struct wpa_driver_nl80211_data *drv = bss->drv; 8331 struct nl_msg *msg; 8332 int ret = -ENOBUFS; 8333 u32 val; 8334 8335 msg = nlmsg_alloc(); 8336 if (!msg) 8337 return -ENOMEM; 8338 8339 if (rts >= 2347) 8340 val = (u32) -1; 8341 else 8342 val = rts; 8343 8344 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8345 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8346 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 8347 8348 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8349 msg = NULL; 8350 if (!ret) 8351 return 0; 8352nla_put_failure: 8353 nlmsg_free(msg); 8354 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 8355 "%d (%s)", rts, ret, strerror(-ret)); 8356 return ret; 8357} 8358 8359 8360static int i802_set_frag(void *priv, int frag) 8361{ 8362 struct i802_bss *bss = priv; 8363 struct wpa_driver_nl80211_data *drv = bss->drv; 8364 struct nl_msg *msg; 8365 int ret = -ENOBUFS; 8366 u32 val; 8367 8368 msg = nlmsg_alloc(); 8369 if (!msg) 8370 return -ENOMEM; 8371 8372 if (frag >= 2346) 8373 val = (u32) -1; 8374 else 8375 val = frag; 8376 8377 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8378 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8379 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8380 8381 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8382 msg = NULL; 8383 if (!ret) 8384 return 0; 8385nla_put_failure: 8386 nlmsg_free(msg); 8387 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8388 "%d: %d (%s)", frag, ret, strerror(-ret)); 8389 return ret; 8390} 8391 8392 8393static int i802_flush(void *priv) 8394{ 8395 struct i802_bss *bss = priv; 8396 struct wpa_driver_nl80211_data *drv = bss->drv; 8397 struct nl_msg *msg; 8398 int res; 8399 8400 msg = nlmsg_alloc(); 8401 if (!msg) 8402 return -1; 8403 8404 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8405 8406 /* 8407 * XXX: FIX! this needs to flush all VLANs too 8408 */ 8409 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8410 if_nametoindex(bss->ifname)); 8411 8412 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8413 if (res) { 8414 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8415 "(%s)", res, strerror(-res)); 8416 } 8417 return res; 8418 nla_put_failure: 8419 nlmsg_free(msg); 8420 return -ENOBUFS; 8421} 8422 8423#endif /* HOSTAPD || CONFIG_AP */ 8424 8425 8426static int get_sta_handler(struct nl_msg *msg, void *arg) 8427{ 8428 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8429 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8430 struct hostap_sta_driver_data *data = arg; 8431 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8432 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8433 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8434 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8435 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8436 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8437 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8438 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8439 }; 8440 8441 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8442 genlmsg_attrlen(gnlh, 0), NULL); 8443 8444 /* 8445 * TODO: validate the interface and mac address! 8446 * Otherwise, there's a race condition as soon as 8447 * the kernel starts sending station notifications. 8448 */ 8449 8450 if (!tb[NL80211_ATTR_STA_INFO]) { 8451 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8452 return NL_SKIP; 8453 } 8454 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8455 tb[NL80211_ATTR_STA_INFO], 8456 stats_policy)) { 8457 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8458 return NL_SKIP; 8459 } 8460 8461 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8462 data->inactive_msec = 8463 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8464 if (stats[NL80211_STA_INFO_RX_BYTES]) 8465 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8466 if (stats[NL80211_STA_INFO_TX_BYTES]) 8467 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8468 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8469 data->rx_packets = 8470 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8471 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8472 data->tx_packets = 8473 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8474 if (stats[NL80211_STA_INFO_TX_FAILED]) 8475 data->tx_retry_failed = 8476 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8477 8478 return NL_SKIP; 8479} 8480 8481static int i802_read_sta_data(struct i802_bss *bss, 8482 struct hostap_sta_driver_data *data, 8483 const u8 *addr) 8484{ 8485 struct wpa_driver_nl80211_data *drv = bss->drv; 8486 struct nl_msg *msg; 8487 8488 os_memset(data, 0, sizeof(*data)); 8489 msg = nlmsg_alloc(); 8490 if (!msg) 8491 return -ENOMEM; 8492 8493 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8494 8495 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8496 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8497 8498 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8499 nla_put_failure: 8500 nlmsg_free(msg); 8501 return -ENOBUFS; 8502} 8503 8504 8505#if defined(HOSTAPD) || defined(CONFIG_AP) 8506 8507static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8508 int cw_min, int cw_max, int burst_time) 8509{ 8510 struct i802_bss *bss = priv; 8511 struct wpa_driver_nl80211_data *drv = bss->drv; 8512 struct nl_msg *msg; 8513 struct nlattr *txq, *params; 8514 8515 msg = nlmsg_alloc(); 8516 if (!msg) 8517 return -1; 8518 8519 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8520 8521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8522 8523 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8524 if (!txq) 8525 goto nla_put_failure; 8526 8527 /* We are only sending parameters for a single TXQ at a time */ 8528 params = nla_nest_start(msg, 1); 8529 if (!params) 8530 goto nla_put_failure; 8531 8532 switch (queue) { 8533 case 0: 8534 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8535 break; 8536 case 1: 8537 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8538 break; 8539 case 2: 8540 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8541 break; 8542 case 3: 8543 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8544 break; 8545 } 8546 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8547 * 32 usec, so need to convert the value here. */ 8548 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8549 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8550 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8551 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8552 8553 nla_nest_end(msg, params); 8554 8555 nla_nest_end(msg, txq); 8556 8557 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8558 return 0; 8559 msg = NULL; 8560 nla_put_failure: 8561 nlmsg_free(msg); 8562 return -1; 8563} 8564 8565 8566static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8567 const char *ifname, int vlan_id) 8568{ 8569 struct wpa_driver_nl80211_data *drv = bss->drv; 8570 struct nl_msg *msg; 8571 int ret = -ENOBUFS; 8572 8573 msg = nlmsg_alloc(); 8574 if (!msg) 8575 return -ENOMEM; 8576 8577 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8578 8579 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8580 if_nametoindex(bss->ifname)); 8581 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8582 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8583 if_nametoindex(ifname)); 8584 8585 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8586 msg = NULL; 8587 if (ret < 0) { 8588 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8589 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8590 MAC2STR(addr), ifname, vlan_id, ret, 8591 strerror(-ret)); 8592 } 8593 nla_put_failure: 8594 nlmsg_free(msg); 8595 return ret; 8596} 8597 8598 8599static int i802_get_inact_sec(void *priv, const u8 *addr) 8600{ 8601 struct hostap_sta_driver_data data; 8602 int ret; 8603 8604 data.inactive_msec = (unsigned long) -1; 8605 ret = i802_read_sta_data(priv, &data, addr); 8606 if (ret || data.inactive_msec == (unsigned long) -1) 8607 return -1; 8608 return data.inactive_msec / 1000; 8609} 8610 8611 8612static int i802_sta_clear_stats(void *priv, const u8 *addr) 8613{ 8614#if 0 8615 /* TODO */ 8616#endif 8617 return 0; 8618} 8619 8620 8621static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8622 int reason) 8623{ 8624 struct i802_bss *bss = priv; 8625 struct wpa_driver_nl80211_data *drv = bss->drv; 8626 struct ieee80211_mgmt mgmt; 8627 8628 if (drv->device_ap_sme) 8629 return wpa_driver_nl80211_sta_remove(bss, addr); 8630 8631 memset(&mgmt, 0, sizeof(mgmt)); 8632 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8633 WLAN_FC_STYPE_DEAUTH); 8634 memcpy(mgmt.da, addr, ETH_ALEN); 8635 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8636 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8637 mgmt.u.deauth.reason_code = host_to_le16(reason); 8638 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8639 IEEE80211_HDRLEN + 8640 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8641 0); 8642} 8643 8644 8645static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8646 int reason) 8647{ 8648 struct i802_bss *bss = priv; 8649 struct wpa_driver_nl80211_data *drv = bss->drv; 8650 struct ieee80211_mgmt mgmt; 8651 8652 if (drv->device_ap_sme) 8653 return wpa_driver_nl80211_sta_remove(bss, addr); 8654 8655 memset(&mgmt, 0, sizeof(mgmt)); 8656 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8657 WLAN_FC_STYPE_DISASSOC); 8658 memcpy(mgmt.da, addr, ETH_ALEN); 8659 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8660 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8661 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8662 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8663 IEEE80211_HDRLEN + 8664 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8665 0); 8666} 8667 8668#endif /* HOSTAPD || CONFIG_AP */ 8669 8670#ifdef HOSTAPD 8671 8672static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8673{ 8674 int i; 8675 int *old; 8676 8677 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8678 ifidx); 8679 for (i = 0; i < drv->num_if_indices; i++) { 8680 if (drv->if_indices[i] == 0) { 8681 drv->if_indices[i] = ifidx; 8682 return; 8683 } 8684 } 8685 8686 if (drv->if_indices != drv->default_if_indices) 8687 old = drv->if_indices; 8688 else 8689 old = NULL; 8690 8691 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8692 sizeof(int)); 8693 if (!drv->if_indices) { 8694 if (!old) 8695 drv->if_indices = drv->default_if_indices; 8696 else 8697 drv->if_indices = old; 8698 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8699 "interfaces"); 8700 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8701 return; 8702 } else if (!old) 8703 os_memcpy(drv->if_indices, drv->default_if_indices, 8704 sizeof(drv->default_if_indices)); 8705 drv->if_indices[drv->num_if_indices] = ifidx; 8706 drv->num_if_indices++; 8707} 8708 8709 8710static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8711{ 8712 int i; 8713 8714 for (i = 0; i < drv->num_if_indices; i++) { 8715 if (drv->if_indices[i] == ifidx) { 8716 drv->if_indices[i] = 0; 8717 break; 8718 } 8719 } 8720} 8721 8722 8723static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8724{ 8725 int i; 8726 8727 for (i = 0; i < drv->num_if_indices; i++) 8728 if (drv->if_indices[i] == ifidx) 8729 return 1; 8730 8731 return 0; 8732} 8733 8734 8735static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8736 const char *bridge_ifname, char *ifname_wds) 8737{ 8738 struct i802_bss *bss = priv; 8739 struct wpa_driver_nl80211_data *drv = bss->drv; 8740 char name[IFNAMSIZ + 1]; 8741 8742 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8743 if (ifname_wds) 8744 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 8745 8746 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8747 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8748 if (val) { 8749 if (!if_nametoindex(name)) { 8750 if (nl80211_create_iface(drv, name, 8751 NL80211_IFTYPE_AP_VLAN, 8752 bss->addr, 1, NULL, NULL) < 0) 8753 return -1; 8754 if (bridge_ifname && 8755 linux_br_add_if(drv->global->ioctl_sock, 8756 bridge_ifname, name) < 0) 8757 return -1; 8758 } 8759 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8760 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8761 "interface %s up", name); 8762 } 8763 return i802_set_sta_vlan(priv, addr, name, 0); 8764 } else { 8765 if (bridge_ifname) 8766 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8767 name); 8768 8769 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8770 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8771 name); 8772 } 8773} 8774 8775 8776static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8777{ 8778 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8779 struct sockaddr_ll lladdr; 8780 unsigned char buf[3000]; 8781 int len; 8782 socklen_t fromlen = sizeof(lladdr); 8783 8784 len = recvfrom(sock, buf, sizeof(buf), 0, 8785 (struct sockaddr *)&lladdr, &fromlen); 8786 if (len < 0) { 8787 perror("recv"); 8788 return; 8789 } 8790 8791 if (have_ifidx(drv, lladdr.sll_ifindex)) 8792 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8793} 8794 8795 8796static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8797 struct i802_bss *bss, 8798 const char *brname, const char *ifname) 8799{ 8800 int ifindex; 8801 char in_br[IFNAMSIZ]; 8802 8803 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8804 ifindex = if_nametoindex(brname); 8805 if (ifindex == 0) { 8806 /* 8807 * Bridge was configured, but the bridge device does 8808 * not exist. Try to add it now. 8809 */ 8810 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8811 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8812 "bridge interface %s: %s", 8813 brname, strerror(errno)); 8814 return -1; 8815 } 8816 bss->added_bridge = 1; 8817 add_ifidx(drv, if_nametoindex(brname)); 8818 } 8819 8820 if (linux_br_get(in_br, ifname) == 0) { 8821 if (os_strcmp(in_br, brname) == 0) 8822 return 0; /* already in the bridge */ 8823 8824 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8825 "bridge %s", ifname, in_br); 8826 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8827 0) { 8828 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8829 "remove interface %s from bridge " 8830 "%s: %s", 8831 ifname, brname, strerror(errno)); 8832 return -1; 8833 } 8834 } 8835 8836 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8837 ifname, brname); 8838 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8839 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8840 "into bridge %s: %s", 8841 ifname, brname, strerror(errno)); 8842 return -1; 8843 } 8844 bss->added_if_into_bridge = 1; 8845 8846 return 0; 8847} 8848 8849 8850static void *i802_init(struct hostapd_data *hapd, 8851 struct wpa_init_params *params) 8852{ 8853 struct wpa_driver_nl80211_data *drv; 8854 struct i802_bss *bss; 8855 size_t i; 8856 char brname[IFNAMSIZ]; 8857 int ifindex, br_ifindex; 8858 int br_added = 0; 8859 8860 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8861 params->global_priv); 8862 if (bss == NULL) 8863 return NULL; 8864 8865 drv = bss->drv; 8866 drv->nlmode = NL80211_IFTYPE_AP; 8867 drv->eapol_sock = -1; 8868 8869 if (linux_br_get(brname, params->ifname) == 0) { 8870 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8871 params->ifname, brname); 8872 br_ifindex = if_nametoindex(brname); 8873 } else { 8874 brname[0] = '\0'; 8875 br_ifindex = 0; 8876 } 8877 8878 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8879 drv->if_indices = drv->default_if_indices; 8880 for (i = 0; i < params->num_bridge; i++) { 8881 if (params->bridge[i]) { 8882 ifindex = if_nametoindex(params->bridge[i]); 8883 if (ifindex) 8884 add_ifidx(drv, ifindex); 8885 if (ifindex == br_ifindex) 8886 br_added = 1; 8887 } 8888 } 8889 if (!br_added && br_ifindex && 8890 (params->num_bridge == 0 || !params->bridge[0])) 8891 add_ifidx(drv, br_ifindex); 8892 8893 /* start listening for EAPOL on the default AP interface */ 8894 add_ifidx(drv, drv->ifindex); 8895 8896 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8897 goto failed; 8898 8899 if (params->bssid) { 8900 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8901 params->bssid)) 8902 goto failed; 8903 } 8904 8905 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8906 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8907 "into AP mode", bss->ifname); 8908 goto failed; 8909 } 8910 8911 if (params->num_bridge && params->bridge[0] && 8912 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8913 goto failed; 8914 8915 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8916 goto failed; 8917 8918 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8919 if (drv->eapol_sock < 0) { 8920 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8921 goto failed; 8922 } 8923 8924 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8925 { 8926 printf("Could not register read socket for eapol\n"); 8927 goto failed; 8928 } 8929 8930 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8931 params->own_addr)) 8932 goto failed; 8933 8934 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8935 8936 return bss; 8937 8938failed: 8939 wpa_driver_nl80211_deinit(bss); 8940 return NULL; 8941} 8942 8943 8944static void i802_deinit(void *priv) 8945{ 8946 struct i802_bss *bss = priv; 8947 wpa_driver_nl80211_deinit(bss); 8948} 8949 8950#endif /* HOSTAPD */ 8951 8952 8953static enum nl80211_iftype wpa_driver_nl80211_if_type( 8954 enum wpa_driver_if_type type) 8955{ 8956 switch (type) { 8957 case WPA_IF_STATION: 8958 return NL80211_IFTYPE_STATION; 8959 case WPA_IF_P2P_CLIENT: 8960 case WPA_IF_P2P_GROUP: 8961 return NL80211_IFTYPE_P2P_CLIENT; 8962 case WPA_IF_AP_VLAN: 8963 return NL80211_IFTYPE_AP_VLAN; 8964 case WPA_IF_AP_BSS: 8965 return NL80211_IFTYPE_AP; 8966 case WPA_IF_P2P_GO: 8967 return NL80211_IFTYPE_P2P_GO; 8968 case WPA_IF_P2P_DEVICE: 8969 return NL80211_IFTYPE_P2P_DEVICE; 8970 } 8971 return -1; 8972} 8973 8974 8975#ifdef CONFIG_P2P 8976 8977static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8978{ 8979 struct wpa_driver_nl80211_data *drv; 8980 dl_list_for_each(drv, &global->interfaces, 8981 struct wpa_driver_nl80211_data, list) { 8982 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8983 return 1; 8984 } 8985 return 0; 8986} 8987 8988 8989static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8990 u8 *new_addr) 8991{ 8992 unsigned int idx; 8993 8994 if (!drv->global) 8995 return -1; 8996 8997 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8998 for (idx = 0; idx < 64; idx++) { 8999 new_addr[0] = drv->first_bss.addr[0] | 0x02; 9000 new_addr[0] ^= idx << 2; 9001 if (!nl80211_addr_in_use(drv->global, new_addr)) 9002 break; 9003 } 9004 if (idx == 64) 9005 return -1; 9006 9007 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 9008 MACSTR, MAC2STR(new_addr)); 9009 9010 return 0; 9011} 9012 9013#endif /* CONFIG_P2P */ 9014 9015 9016struct wdev_info { 9017 u64 wdev_id; 9018 int wdev_id_set; 9019 u8 macaddr[ETH_ALEN]; 9020}; 9021 9022static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 9023{ 9024 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9025 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9026 struct wdev_info *wi = arg; 9027 9028 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9029 genlmsg_attrlen(gnlh, 0), NULL); 9030 if (tb[NL80211_ATTR_WDEV]) { 9031 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 9032 wi->wdev_id_set = 1; 9033 } 9034 9035 if (tb[NL80211_ATTR_MAC]) 9036 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 9037 ETH_ALEN); 9038 9039 return NL_SKIP; 9040} 9041 9042 9043static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 9044 const char *ifname, const u8 *addr, 9045 void *bss_ctx, void **drv_priv, 9046 char *force_ifname, u8 *if_addr, 9047 const char *bridge) 9048{ 9049 enum nl80211_iftype nlmode; 9050 struct i802_bss *bss = priv; 9051 struct wpa_driver_nl80211_data *drv = bss->drv; 9052 int ifidx; 9053#ifdef HOSTAPD 9054 struct i802_bss *new_bss = NULL; 9055 9056 if (type == WPA_IF_AP_BSS) { 9057 new_bss = os_zalloc(sizeof(*new_bss)); 9058 if (new_bss == NULL) 9059 return -1; 9060 } 9061#endif /* HOSTAPD */ 9062 9063 if (addr) 9064 os_memcpy(if_addr, addr, ETH_ALEN); 9065 nlmode = wpa_driver_nl80211_if_type(type); 9066 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 9067 struct wdev_info p2pdev_info; 9068 9069 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 9070 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9071 0, nl80211_wdev_handler, 9072 &p2pdev_info); 9073 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 9074 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 9075 ifname); 9076 return -1; 9077 } 9078 9079 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 9080 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 9081 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 9082 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 9083 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 9084 ifname, 9085 (long long unsigned int) p2pdev_info.wdev_id); 9086 } else { 9087 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 9088 0, NULL, NULL); 9089 if (ifidx < 0) { 9090#ifdef HOSTAPD 9091 os_free(new_bss); 9092#endif /* HOSTAPD */ 9093 return -1; 9094 } 9095 } 9096 9097 if (!addr) { 9098 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 9099 os_memcpy(if_addr, bss->addr, ETH_ALEN); 9100 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 9101 bss->ifname, if_addr) < 0) { 9102 nl80211_remove_iface(drv, ifidx); 9103 return -1; 9104 } 9105 } 9106 9107#ifdef CONFIG_P2P 9108 if (!addr && 9109 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 9110 type == WPA_IF_P2P_GO)) { 9111 /* Enforce unique P2P Interface Address */ 9112 u8 new_addr[ETH_ALEN]; 9113 9114 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 9115 new_addr) < 0) { 9116 nl80211_remove_iface(drv, ifidx); 9117 return -1; 9118 } 9119 if (nl80211_addr_in_use(drv->global, new_addr)) { 9120 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 9121 "for P2P group interface"); 9122 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 9123 nl80211_remove_iface(drv, ifidx); 9124 return -1; 9125 } 9126 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 9127 new_addr) < 0) { 9128 nl80211_remove_iface(drv, ifidx); 9129 return -1; 9130 } 9131 } 9132 os_memcpy(if_addr, new_addr, ETH_ALEN); 9133 } 9134#endif /* CONFIG_P2P */ 9135 9136#ifdef HOSTAPD 9137 if (bridge && 9138 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 9139 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 9140 "interface %s to a bridge %s", ifname, bridge); 9141 nl80211_remove_iface(drv, ifidx); 9142 os_free(new_bss); 9143 return -1; 9144 } 9145 9146 if (type == WPA_IF_AP_BSS) { 9147 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 9148 { 9149 nl80211_remove_iface(drv, ifidx); 9150 os_free(new_bss); 9151 return -1; 9152 } 9153 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 9154 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 9155 new_bss->ifindex = ifidx; 9156 new_bss->drv = drv; 9157 new_bss->next = drv->first_bss.next; 9158 new_bss->freq = drv->first_bss.freq; 9159 new_bss->ctx = bss_ctx; 9160 drv->first_bss.next = new_bss; 9161 if (drv_priv) 9162 *drv_priv = new_bss; 9163 nl80211_init_bss(new_bss); 9164 9165 /* Subscribe management frames for this WPA_IF_AP_BSS */ 9166 if (nl80211_setup_ap(new_bss)) 9167 return -1; 9168 } 9169#endif /* HOSTAPD */ 9170 9171 if (drv->global) 9172 drv->global->if_add_ifindex = ifidx; 9173 9174 return 0; 9175} 9176 9177 9178static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 9179 enum wpa_driver_if_type type, 9180 const char *ifname) 9181{ 9182 struct wpa_driver_nl80211_data *drv = bss->drv; 9183 int ifindex = if_nametoindex(ifname); 9184 9185 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 9186 __func__, type, ifname, ifindex); 9187 if (ifindex <= 0) 9188 return -1; 9189 9190 nl80211_remove_iface(drv, ifindex); 9191 9192#ifdef HOSTAPD 9193 if (type != WPA_IF_AP_BSS) 9194 return 0; 9195 9196 if (bss->added_if_into_bridge) { 9197 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 9198 bss->ifname) < 0) 9199 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9200 "interface %s from bridge %s: %s", 9201 bss->ifname, bss->brname, strerror(errno)); 9202 } 9203 if (bss->added_bridge) { 9204 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 9205 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 9206 "bridge %s: %s", 9207 bss->brname, strerror(errno)); 9208 } 9209 9210 if (bss != &drv->first_bss) { 9211 struct i802_bss *tbss; 9212 9213 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 9214 if (tbss->next == bss) { 9215 tbss->next = bss->next; 9216 /* Unsubscribe management frames */ 9217 nl80211_teardown_ap(bss); 9218 nl80211_destroy_bss(bss); 9219 os_free(bss); 9220 bss = NULL; 9221 break; 9222 } 9223 } 9224 if (bss) 9225 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 9226 "BSS %p in the list", __func__, bss); 9227 } 9228#endif /* HOSTAPD */ 9229 9230 return 0; 9231} 9232 9233 9234static int cookie_handler(struct nl_msg *msg, void *arg) 9235{ 9236 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9237 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9238 u64 *cookie = arg; 9239 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9240 genlmsg_attrlen(gnlh, 0), NULL); 9241 if (tb[NL80211_ATTR_COOKIE]) 9242 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 9243 return NL_SKIP; 9244} 9245 9246 9247static int nl80211_send_frame_cmd(struct i802_bss *bss, 9248 unsigned int freq, unsigned int wait, 9249 const u8 *buf, size_t buf_len, 9250 u64 *cookie_out, int no_cck, int no_ack, 9251 int offchanok) 9252{ 9253 struct wpa_driver_nl80211_data *drv = bss->drv; 9254 struct nl_msg *msg; 9255 u64 cookie; 9256 int ret = -1; 9257 9258 msg = nlmsg_alloc(); 9259 if (!msg) 9260 return -1; 9261 9262 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 9263 "no_ack=%d offchanok=%d", 9264 freq, wait, no_cck, no_ack, offchanok); 9265 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 9266 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 9267 9268 if (nl80211_set_iface_id(msg, bss) < 0) 9269 goto nla_put_failure; 9270 if (freq) 9271 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9272 if (wait) 9273 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 9274 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 9275 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 9276 if (no_cck) 9277 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 9278 if (no_ack) 9279 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 9280 9281 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 9282 9283 cookie = 0; 9284 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9285 msg = NULL; 9286 if (ret) { 9287 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 9288 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 9289 freq, wait); 9290 goto nla_put_failure; 9291 } 9292 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 9293 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 9294 (long long unsigned int) cookie); 9295 9296 if (cookie_out) 9297 *cookie_out = no_ack ? (u64) -1 : cookie; 9298 9299nla_put_failure: 9300 nlmsg_free(msg); 9301 return ret; 9302} 9303 9304 9305static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 9306 unsigned int freq, 9307 unsigned int wait_time, 9308 const u8 *dst, const u8 *src, 9309 const u8 *bssid, 9310 const u8 *data, size_t data_len, 9311 int no_cck) 9312{ 9313 struct wpa_driver_nl80211_data *drv = bss->drv; 9314 int ret = -1; 9315 u8 *buf; 9316 struct ieee80211_hdr *hdr; 9317 9318 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 9319 "freq=%u MHz wait=%d ms no_cck=%d)", 9320 drv->ifindex, freq, wait_time, no_cck); 9321 9322 buf = os_zalloc(24 + data_len); 9323 if (buf == NULL) 9324 return ret; 9325 os_memcpy(buf + 24, data, data_len); 9326 hdr = (struct ieee80211_hdr *) buf; 9327 hdr->frame_control = 9328 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 9329 os_memcpy(hdr->addr1, dst, ETH_ALEN); 9330 os_memcpy(hdr->addr2, src, ETH_ALEN); 9331 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 9332 9333 if (is_ap_interface(drv->nlmode)) 9334 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 9335 0, freq, no_cck, 1, 9336 wait_time); 9337 else 9338 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 9339 24 + data_len, 9340 &drv->send_action_cookie, 9341 no_cck, 0, 1); 9342 9343 os_free(buf); 9344 return ret; 9345} 9346 9347 9348static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 9349{ 9350 struct i802_bss *bss = priv; 9351 struct wpa_driver_nl80211_data *drv = bss->drv; 9352 struct nl_msg *msg; 9353 int ret; 9354 9355 msg = nlmsg_alloc(); 9356 if (!msg) 9357 return; 9358 9359 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 9360 (long long unsigned int) drv->send_action_cookie); 9361 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 9362 9363 if (nl80211_set_iface_id(msg, bss) < 0) 9364 goto nla_put_failure; 9365 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 9366 9367 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9368 msg = NULL; 9369 if (ret) 9370 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 9371 "(%s)", ret, strerror(-ret)); 9372 9373 nla_put_failure: 9374 nlmsg_free(msg); 9375} 9376 9377 9378static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 9379 unsigned int duration) 9380{ 9381 struct i802_bss *bss = priv; 9382 struct wpa_driver_nl80211_data *drv = bss->drv; 9383 struct nl_msg *msg; 9384 int ret; 9385 u64 cookie; 9386 9387 msg = nlmsg_alloc(); 9388 if (!msg) 9389 return -1; 9390 9391 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 9392 9393 if (nl80211_set_iface_id(msg, bss) < 0) 9394 goto nla_put_failure; 9395 9396 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9397 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 9398 9399 cookie = 0; 9400 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 9401 msg = NULL; 9402 if (ret == 0) { 9403 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 9404 "0x%llx for freq=%u MHz duration=%u", 9405 (long long unsigned int) cookie, freq, duration); 9406 drv->remain_on_chan_cookie = cookie; 9407 drv->pending_remain_on_chan = 1; 9408 return 0; 9409 } 9410 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 9411 "(freq=%d duration=%u): %d (%s)", 9412 freq, duration, ret, strerror(-ret)); 9413nla_put_failure: 9414 nlmsg_free(msg); 9415 return -1; 9416} 9417 9418 9419static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 9420{ 9421 struct i802_bss *bss = priv; 9422 struct wpa_driver_nl80211_data *drv = bss->drv; 9423 struct nl_msg *msg; 9424 int ret; 9425 9426 if (!drv->pending_remain_on_chan) { 9427 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 9428 "to cancel"); 9429 return -1; 9430 } 9431 9432 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 9433 "0x%llx", 9434 (long long unsigned int) drv->remain_on_chan_cookie); 9435 9436 msg = nlmsg_alloc(); 9437 if (!msg) 9438 return -1; 9439 9440 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9441 9442 if (nl80211_set_iface_id(msg, bss) < 0) 9443 goto nla_put_failure; 9444 9445 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9446 9447 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9448 msg = NULL; 9449 if (ret == 0) 9450 return 0; 9451 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9452 "%d (%s)", ret, strerror(-ret)); 9453nla_put_failure: 9454 nlmsg_free(msg); 9455 return -1; 9456} 9457 9458 9459static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9460{ 9461 struct wpa_driver_nl80211_data *drv = bss->drv; 9462 9463 if (!report) { 9464 if (bss->nl_preq && drv->device_ap_sme && 9465 is_ap_interface(drv->nlmode)) { 9466 /* 9467 * Do not disable Probe Request reporting that was 9468 * enabled in nl80211_setup_ap(). 9469 */ 9470 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9471 "Probe Request reporting nl_preq=%p while " 9472 "in AP mode", bss->nl_preq); 9473 } else if (bss->nl_preq) { 9474 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9475 "reporting nl_preq=%p", bss->nl_preq); 9476 eloop_unregister_read_sock( 9477 nl_socket_get_fd(bss->nl_preq)); 9478 nl_destroy_handles(&bss->nl_preq); 9479 } 9480 return 0; 9481 } 9482 9483 if (bss->nl_preq) { 9484 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9485 "already on! nl_preq=%p", bss->nl_preq); 9486 return 0; 9487 } 9488 9489 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9490 if (bss->nl_preq == NULL) 9491 return -1; 9492 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9493 "reporting nl_preq=%p", bss->nl_preq); 9494 9495 if (nl80211_register_frame(bss, bss->nl_preq, 9496 (WLAN_FC_TYPE_MGMT << 2) | 9497 (WLAN_FC_STYPE_PROBE_REQ << 4), 9498 NULL, 0) < 0) 9499 goto out_err; 9500 9501 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9502 wpa_driver_nl80211_event_receive, bss->nl_cb, 9503 bss->nl_preq); 9504 9505 return 0; 9506 9507 out_err: 9508 nl_destroy_handles(&bss->nl_preq); 9509 return -1; 9510} 9511 9512 9513static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9514 int ifindex, int disabled) 9515{ 9516 struct nl_msg *msg; 9517 struct nlattr *bands, *band; 9518 int ret; 9519 9520 msg = nlmsg_alloc(); 9521 if (!msg) 9522 return -1; 9523 9524 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9525 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9526 9527 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9528 if (!bands) 9529 goto nla_put_failure; 9530 9531 /* 9532 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9533 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9534 * rates. All 5 GHz rates are left enabled. 9535 */ 9536 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9537 if (!band) 9538 goto nla_put_failure; 9539 if (disabled) { 9540 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9541 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9542 } 9543 nla_nest_end(msg, band); 9544 9545 nla_nest_end(msg, bands); 9546 9547 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9548 msg = NULL; 9549 if (ret) { 9550 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9551 "(%s)", ret, strerror(-ret)); 9552 } else 9553 drv->disabled_11b_rates = disabled; 9554 9555 return ret; 9556 9557nla_put_failure: 9558 nlmsg_free(msg); 9559 return -1; 9560} 9561 9562 9563static int wpa_driver_nl80211_deinit_ap(void *priv) 9564{ 9565 struct i802_bss *bss = priv; 9566 struct wpa_driver_nl80211_data *drv = bss->drv; 9567 if (!is_ap_interface(drv->nlmode)) 9568 return -1; 9569 wpa_driver_nl80211_del_beacon(drv); 9570 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9571} 9572 9573 9574static int wpa_driver_nl80211_stop_ap(void *priv) 9575{ 9576 struct i802_bss *bss = priv; 9577 struct wpa_driver_nl80211_data *drv = bss->drv; 9578 if (!is_ap_interface(drv->nlmode)) 9579 return -1; 9580 wpa_driver_nl80211_del_beacon(drv); 9581 bss->beacon_set = 0; 9582 return 0; 9583} 9584 9585 9586static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9587{ 9588 struct i802_bss *bss = priv; 9589 struct wpa_driver_nl80211_data *drv = bss->drv; 9590 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9591 return -1; 9592 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9593} 9594 9595 9596static void wpa_driver_nl80211_resume(void *priv) 9597{ 9598 struct i802_bss *bss = priv; 9599 9600 if (i802_set_iface_flags(bss, 1)) 9601 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 9602} 9603 9604 9605static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9606 const u8 *ies, size_t ies_len) 9607{ 9608 struct i802_bss *bss = priv; 9609 struct wpa_driver_nl80211_data *drv = bss->drv; 9610 int ret; 9611 u8 *data, *pos; 9612 size_t data_len; 9613 const u8 *own_addr = bss->addr; 9614 9615 if (action != 1) { 9616 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9617 "action %d", action); 9618 return -1; 9619 } 9620 9621 /* 9622 * Action frame payload: 9623 * Category[1] = 6 (Fast BSS Transition) 9624 * Action[1] = 1 (Fast BSS Transition Request) 9625 * STA Address 9626 * Target AP Address 9627 * FT IEs 9628 */ 9629 9630 data_len = 2 + 2 * ETH_ALEN + ies_len; 9631 data = os_malloc(data_len); 9632 if (data == NULL) 9633 return -1; 9634 pos = data; 9635 *pos++ = 0x06; /* FT Action category */ 9636 *pos++ = action; 9637 os_memcpy(pos, own_addr, ETH_ALEN); 9638 pos += ETH_ALEN; 9639 os_memcpy(pos, target_ap, ETH_ALEN); 9640 pos += ETH_ALEN; 9641 os_memcpy(pos, ies, ies_len); 9642 9643 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9644 drv->bssid, own_addr, drv->bssid, 9645 data, data_len, 0); 9646 os_free(data); 9647 9648 return ret; 9649} 9650 9651 9652static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9653{ 9654 struct i802_bss *bss = priv; 9655 struct wpa_driver_nl80211_data *drv = bss->drv; 9656 struct nl_msg *msg; 9657 struct nlattr *cqm; 9658 int ret = -1; 9659 9660 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9661 "hysteresis=%d", threshold, hysteresis); 9662 9663 msg = nlmsg_alloc(); 9664 if (!msg) 9665 return -1; 9666 9667 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9668 9669 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9670 9671 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9672 if (cqm == NULL) 9673 goto nla_put_failure; 9674 9675 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9676 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9677 nla_nest_end(msg, cqm); 9678 9679 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9680 msg = NULL; 9681 9682nla_put_failure: 9683 nlmsg_free(msg); 9684 return ret; 9685} 9686 9687 9688/* Converts nl80211_chan_width to a common format */ 9689static enum chan_width convert2width(int width) 9690{ 9691 switch (width) { 9692 case NL80211_CHAN_WIDTH_20_NOHT: 9693 return CHAN_WIDTH_20_NOHT; 9694 case NL80211_CHAN_WIDTH_20: 9695 return CHAN_WIDTH_20; 9696 case NL80211_CHAN_WIDTH_40: 9697 return CHAN_WIDTH_40; 9698 case NL80211_CHAN_WIDTH_80: 9699 return CHAN_WIDTH_80; 9700 case NL80211_CHAN_WIDTH_80P80: 9701 return CHAN_WIDTH_80P80; 9702 case NL80211_CHAN_WIDTH_160: 9703 return CHAN_WIDTH_160; 9704 } 9705 return CHAN_WIDTH_UNKNOWN; 9706} 9707 9708 9709static int get_channel_width(struct nl_msg *msg, void *arg) 9710{ 9711 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9712 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9713 struct wpa_signal_info *sig_change = arg; 9714 9715 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9716 genlmsg_attrlen(gnlh, 0), NULL); 9717 9718 sig_change->center_frq1 = -1; 9719 sig_change->center_frq2 = -1; 9720 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 9721 9722 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 9723 sig_change->chanwidth = convert2width( 9724 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 9725 if (tb[NL80211_ATTR_CENTER_FREQ1]) 9726 sig_change->center_frq1 = 9727 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 9728 if (tb[NL80211_ATTR_CENTER_FREQ2]) 9729 sig_change->center_frq2 = 9730 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 9731 } 9732 9733 return NL_SKIP; 9734} 9735 9736 9737static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 9738 struct wpa_signal_info *sig) 9739{ 9740 struct nl_msg *msg; 9741 9742 msg = nlmsg_alloc(); 9743 if (!msg) 9744 return -ENOMEM; 9745 9746 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); 9747 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9748 9749 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 9750 9751nla_put_failure: 9752 nlmsg_free(msg); 9753 return -ENOBUFS; 9754} 9755 9756 9757static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9758{ 9759 struct i802_bss *bss = priv; 9760 struct wpa_driver_nl80211_data *drv = bss->drv; 9761 int res; 9762 9763 os_memset(si, 0, sizeof(*si)); 9764 res = nl80211_get_link_signal(drv, si); 9765 if (res != 0) 9766 return res; 9767 9768 res = nl80211_get_channel_width(drv, si); 9769 if (res != 0) 9770 return res; 9771 9772 return nl80211_get_link_noise(drv, si); 9773} 9774 9775 9776static int wpa_driver_nl80211_shared_freq(void *priv) 9777{ 9778 struct i802_bss *bss = priv; 9779 struct wpa_driver_nl80211_data *drv = bss->drv; 9780 struct wpa_driver_nl80211_data *driver; 9781 int freq = 0; 9782 9783 /* 9784 * If the same PHY is in connected state with some other interface, 9785 * then retrieve the assoc freq. 9786 */ 9787 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9788 drv->phyname); 9789 9790 dl_list_for_each(driver, &drv->global->interfaces, 9791 struct wpa_driver_nl80211_data, list) { 9792 if (drv == driver || 9793 os_strcmp(drv->phyname, driver->phyname) != 0 || 9794#ifdef ANDROID_P2P 9795 (!driver->associated && !is_ap_interface(driver->nlmode))) 9796#else 9797 !driver->associated) 9798#endif 9799 continue; 9800 9801 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9802 MACSTR, 9803 driver->phyname, driver->first_bss.ifname, 9804 MAC2STR(driver->first_bss.addr)); 9805 if (is_ap_interface(driver->nlmode)) 9806 freq = driver->first_bss.freq; 9807 else 9808 freq = nl80211_get_assoc_freq(driver); 9809 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9810 drv->phyname, freq); 9811 } 9812 9813 if (!freq) 9814 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9815 "PHY (%s) in associated state", drv->phyname); 9816 9817 return freq; 9818} 9819 9820 9821static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9822 int encrypt) 9823{ 9824 struct i802_bss *bss = priv; 9825 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9826 0, 0, 0, 0); 9827} 9828 9829 9830static int nl80211_set_param(void *priv, const char *param) 9831{ 9832 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9833 if (param == NULL) 9834 return 0; 9835 9836#ifdef CONFIG_P2P 9837 if (os_strstr(param, "use_p2p_group_interface=1")) { 9838 struct i802_bss *bss = priv; 9839 struct wpa_driver_nl80211_data *drv = bss->drv; 9840 9841 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9842 "interface"); 9843 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9844 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9845 } 9846 9847 if (os_strstr(param, "p2p_device=1")) { 9848 struct i802_bss *bss = priv; 9849 struct wpa_driver_nl80211_data *drv = bss->drv; 9850 drv->allow_p2p_device = 1; 9851 } 9852 9853#ifdef ANDROID_P2P 9854 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9855 struct i802_bss *bss = priv; 9856 struct wpa_driver_nl80211_data *drv = bss->drv; 9857 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9858 "concurrency"); 9859 drv->capa.num_multichan_concurrent = 2; 9860 } 9861#endif 9862#endif /* CONFIG_P2P */ 9863 9864 return 0; 9865} 9866 9867 9868static void * nl80211_global_init(void) 9869{ 9870 struct nl80211_global *global; 9871 struct netlink_config *cfg; 9872 9873 global = os_zalloc(sizeof(*global)); 9874 if (global == NULL) 9875 return NULL; 9876 global->ioctl_sock = -1; 9877 dl_list_init(&global->interfaces); 9878 global->if_add_ifindex = -1; 9879 9880 cfg = os_zalloc(sizeof(*cfg)); 9881 if (cfg == NULL) 9882 goto err; 9883 9884 cfg->ctx = global; 9885 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9886 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9887 global->netlink = netlink_init(cfg); 9888 if (global->netlink == NULL) { 9889 os_free(cfg); 9890 goto err; 9891 } 9892 9893 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9894 goto err; 9895 9896 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9897 if (global->ioctl_sock < 0) { 9898 perror("socket(PF_INET,SOCK_DGRAM)"); 9899 goto err; 9900 } 9901 9902 return global; 9903 9904err: 9905 nl80211_global_deinit(global); 9906 return NULL; 9907} 9908 9909 9910static void nl80211_global_deinit(void *priv) 9911{ 9912 struct nl80211_global *global = priv; 9913 if (global == NULL) 9914 return; 9915 if (!dl_list_empty(&global->interfaces)) { 9916 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9917 "nl80211_global_deinit", 9918 dl_list_len(&global->interfaces)); 9919 } 9920 9921 if (global->netlink) 9922 netlink_deinit(global->netlink); 9923 9924 nl_destroy_handles(&global->nl); 9925 9926 if (global->nl_event) { 9927 eloop_unregister_read_sock( 9928 nl_socket_get_fd(global->nl_event)); 9929 nl_destroy_handles(&global->nl_event); 9930 } 9931 9932 nl_cb_put(global->nl_cb); 9933 9934 if (global->ioctl_sock >= 0) 9935 close(global->ioctl_sock); 9936 9937 os_free(global); 9938} 9939 9940 9941static const char * nl80211_get_radio_name(void *priv) 9942{ 9943 struct i802_bss *bss = priv; 9944 struct wpa_driver_nl80211_data *drv = bss->drv; 9945 return drv->phyname; 9946} 9947 9948 9949static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9950 const u8 *pmkid) 9951{ 9952 struct nl_msg *msg; 9953 9954 msg = nlmsg_alloc(); 9955 if (!msg) 9956 return -ENOMEM; 9957 9958 nl80211_cmd(bss->drv, msg, 0, cmd); 9959 9960 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9961 if (pmkid) 9962 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9963 if (bssid) 9964 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9965 9966 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9967 nla_put_failure: 9968 nlmsg_free(msg); 9969 return -ENOBUFS; 9970} 9971 9972 9973static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9974{ 9975 struct i802_bss *bss = priv; 9976 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9977 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9978} 9979 9980 9981static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9982{ 9983 struct i802_bss *bss = priv; 9984 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9985 MAC2STR(bssid)); 9986 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9987} 9988 9989 9990static int nl80211_flush_pmkid(void *priv) 9991{ 9992 struct i802_bss *bss = priv; 9993 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9994 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9995} 9996 9997 9998static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9999 const u8 *replay_ctr) 10000{ 10001 struct i802_bss *bss = priv; 10002 struct wpa_driver_nl80211_data *drv = bss->drv; 10003 struct nlattr *replay_nested; 10004 struct nl_msg *msg; 10005 10006 msg = nlmsg_alloc(); 10007 if (!msg) 10008 return; 10009 10010 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 10011 10012 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10013 10014 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 10015 if (!replay_nested) 10016 goto nla_put_failure; 10017 10018 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 10019 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 10020 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 10021 replay_ctr); 10022 10023 nla_nest_end(msg, replay_nested); 10024 10025 send_and_recv_msgs(drv, msg, NULL, NULL); 10026 return; 10027 nla_put_failure: 10028 nlmsg_free(msg); 10029} 10030 10031 10032static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 10033 const u8 *addr, int qos) 10034{ 10035 /* send data frame to poll STA and check whether 10036 * this frame is ACKed */ 10037 struct { 10038 struct ieee80211_hdr hdr; 10039 u16 qos_ctl; 10040 } STRUCT_PACKED nulldata; 10041 size_t size; 10042 10043 /* Send data frame to poll STA and check whether this frame is ACKed */ 10044 10045 os_memset(&nulldata, 0, sizeof(nulldata)); 10046 10047 if (qos) { 10048 nulldata.hdr.frame_control = 10049 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10050 WLAN_FC_STYPE_QOS_NULL); 10051 size = sizeof(nulldata); 10052 } else { 10053 nulldata.hdr.frame_control = 10054 IEEE80211_FC(WLAN_FC_TYPE_DATA, 10055 WLAN_FC_STYPE_NULLFUNC); 10056 size = sizeof(struct ieee80211_hdr); 10057 } 10058 10059 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 10060 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 10061 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 10062 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 10063 10064 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 10065 0, 0) < 0) 10066 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 10067 "send poll frame"); 10068} 10069 10070static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 10071 int qos) 10072{ 10073 struct i802_bss *bss = priv; 10074 struct wpa_driver_nl80211_data *drv = bss->drv; 10075 struct nl_msg *msg; 10076 10077 if (!drv->poll_command_supported) { 10078 nl80211_send_null_frame(bss, own_addr, addr, qos); 10079 return; 10080 } 10081 10082 msg = nlmsg_alloc(); 10083 if (!msg) 10084 return; 10085 10086 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 10087 10088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10089 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 10090 10091 send_and_recv_msgs(drv, msg, NULL, NULL); 10092 return; 10093 nla_put_failure: 10094 nlmsg_free(msg); 10095} 10096 10097 10098static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 10099{ 10100 struct nl_msg *msg; 10101 10102 msg = nlmsg_alloc(); 10103 if (!msg) 10104 return -ENOMEM; 10105 10106 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 10107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 10108 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 10109 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 10110 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 10111nla_put_failure: 10112 nlmsg_free(msg); 10113 return -ENOBUFS; 10114} 10115 10116 10117static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 10118 int ctwindow) 10119{ 10120 struct i802_bss *bss = priv; 10121 10122 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 10123 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 10124 10125 if (opp_ps != -1 || ctwindow != -1) 10126#ifdef ANDROID_P2P 10127 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 10128#else 10129 return -1; /* Not yet supported */ 10130#endif 10131 10132 if (legacy_ps == -1) 10133 return 0; 10134 if (legacy_ps != 0 && legacy_ps != 1) 10135 return -1; /* Not yet supported */ 10136 10137 return nl80211_set_power_save(bss, legacy_ps); 10138} 10139 10140 10141static int nl80211_start_radar_detection(void *priv, int freq) 10142{ 10143 struct i802_bss *bss = priv; 10144 struct wpa_driver_nl80211_data *drv = bss->drv; 10145 struct nl_msg *msg; 10146 int ret; 10147 10148 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 10149 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 10150 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 10151 "detection"); 10152 return -1; 10153 } 10154 10155 msg = nlmsg_alloc(); 10156 if (!msg) 10157 return -1; 10158 10159 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 10160 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10161 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 10162 10163 /* only HT20 is supported at this point */ 10164 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 10165 10166 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10167 if (ret == 0) 10168 return 0; 10169 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 10170 "%d (%s)", ret, strerror(-ret)); 10171nla_put_failure: 10172 return -1; 10173} 10174 10175#ifdef CONFIG_TDLS 10176 10177static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 10178 u8 dialog_token, u16 status_code, 10179 const u8 *buf, size_t len) 10180{ 10181 struct i802_bss *bss = priv; 10182 struct wpa_driver_nl80211_data *drv = bss->drv; 10183 struct nl_msg *msg; 10184 10185 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10186 return -EOPNOTSUPP; 10187 10188 if (!dst) 10189 return -EINVAL; 10190 10191 msg = nlmsg_alloc(); 10192 if (!msg) 10193 return -ENOMEM; 10194 10195 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 10196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10197 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 10198 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 10199 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 10200 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 10201 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 10202 10203 return send_and_recv_msgs(drv, msg, NULL, NULL); 10204 10205nla_put_failure: 10206 nlmsg_free(msg); 10207 return -ENOBUFS; 10208} 10209 10210 10211static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 10212{ 10213 struct i802_bss *bss = priv; 10214 struct wpa_driver_nl80211_data *drv = bss->drv; 10215 struct nl_msg *msg; 10216 enum nl80211_tdls_operation nl80211_oper; 10217 10218 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 10219 return -EOPNOTSUPP; 10220 10221 switch (oper) { 10222 case TDLS_DISCOVERY_REQ: 10223 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 10224 break; 10225 case TDLS_SETUP: 10226 nl80211_oper = NL80211_TDLS_SETUP; 10227 break; 10228 case TDLS_TEARDOWN: 10229 nl80211_oper = NL80211_TDLS_TEARDOWN; 10230 break; 10231 case TDLS_ENABLE_LINK: 10232 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 10233 break; 10234 case TDLS_DISABLE_LINK: 10235 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 10236 break; 10237 case TDLS_ENABLE: 10238 return 0; 10239 case TDLS_DISABLE: 10240 return 0; 10241 default: 10242 return -EINVAL; 10243 } 10244 10245 msg = nlmsg_alloc(); 10246 if (!msg) 10247 return -ENOMEM; 10248 10249 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 10250 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 10251 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10252 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 10253 10254 return send_and_recv_msgs(drv, msg, NULL, NULL); 10255 10256nla_put_failure: 10257 nlmsg_free(msg); 10258 return -ENOBUFS; 10259} 10260 10261#endif /* CONFIG TDLS */ 10262 10263 10264#ifdef ANDROID 10265 10266typedef struct android_wifi_priv_cmd { 10267 char *buf; 10268 int used_len; 10269 int total_len; 10270} android_wifi_priv_cmd; 10271 10272static int drv_errors = 0; 10273 10274static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 10275{ 10276 drv_errors++; 10277 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 10278 drv_errors = 0; 10279 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 10280 } 10281} 10282 10283 10284static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 10285{ 10286 struct wpa_driver_nl80211_data *drv = bss->drv; 10287 struct ifreq ifr; 10288 android_wifi_priv_cmd priv_cmd; 10289 char buf[MAX_DRV_CMD_SIZE]; 10290 int ret; 10291 10292 os_memset(&ifr, 0, sizeof(ifr)); 10293 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 10294 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10295 10296 os_memset(buf, 0, sizeof(buf)); 10297 os_strlcpy(buf, cmd, sizeof(buf)); 10298 10299 priv_cmd.buf = buf; 10300 priv_cmd.used_len = sizeof(buf); 10301 priv_cmd.total_len = sizeof(buf); 10302 ifr.ifr_data = &priv_cmd; 10303 10304 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10305 if (ret < 0) { 10306 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 10307 __func__); 10308 wpa_driver_send_hang_msg(drv); 10309 return ret; 10310 } 10311 10312 drv_errors = 0; 10313 return 0; 10314} 10315 10316 10317static int android_pno_start(struct i802_bss *bss, 10318 struct wpa_driver_scan_params *params) 10319{ 10320 struct wpa_driver_nl80211_data *drv = bss->drv; 10321 struct ifreq ifr; 10322 android_wifi_priv_cmd priv_cmd; 10323 int ret = 0, i = 0, bp; 10324 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 10325 10326 bp = WEXT_PNOSETUP_HEADER_SIZE; 10327 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 10328 buf[bp++] = WEXT_PNO_TLV_PREFIX; 10329 buf[bp++] = WEXT_PNO_TLV_VERSION; 10330 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 10331 buf[bp++] = WEXT_PNO_TLV_RESERVED; 10332 10333 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 10334 /* Check that there is enough space needed for 1 more SSID, the 10335 * other sections and null termination */ 10336 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 10337 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 10338 break; 10339 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 10340 params->ssids[i].ssid, 10341 params->ssids[i].ssid_len); 10342 buf[bp++] = WEXT_PNO_SSID_SECTION; 10343 buf[bp++] = params->ssids[i].ssid_len; 10344 os_memcpy(&buf[bp], params->ssids[i].ssid, 10345 params->ssids[i].ssid_len); 10346 bp += params->ssids[i].ssid_len; 10347 i++; 10348 } 10349 10350 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 10351 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 10352 WEXT_PNO_SCAN_INTERVAL); 10353 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 10354 10355 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 10356 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 10357 WEXT_PNO_REPEAT); 10358 bp += WEXT_PNO_REPEAT_LENGTH; 10359 10360 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 10361 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 10362 WEXT_PNO_MAX_REPEAT); 10363 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 10364 10365 memset(&ifr, 0, sizeof(ifr)); 10366 memset(&priv_cmd, 0, sizeof(priv_cmd)); 10367 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 10368 10369 priv_cmd.buf = buf; 10370 priv_cmd.used_len = bp; 10371 priv_cmd.total_len = bp; 10372 ifr.ifr_data = &priv_cmd; 10373 10374 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 10375 10376 if (ret < 0) { 10377 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 10378 ret); 10379 wpa_driver_send_hang_msg(drv); 10380 return ret; 10381 } 10382 10383 drv_errors = 0; 10384 10385 return android_priv_cmd(bss, "PNOFORCE 1"); 10386} 10387 10388 10389static int android_pno_stop(struct i802_bss *bss) 10390{ 10391 return android_priv_cmd(bss, "PNOFORCE 0"); 10392} 10393 10394#endif /* ANDROID */ 10395 10396 10397static int driver_nl80211_set_key(const char *ifname, void *priv, 10398 enum wpa_alg alg, const u8 *addr, 10399 int key_idx, int set_tx, 10400 const u8 *seq, size_t seq_len, 10401 const u8 *key, size_t key_len) 10402{ 10403 struct i802_bss *bss = priv; 10404 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 10405 set_tx, seq, seq_len, key, key_len); 10406} 10407 10408 10409static int driver_nl80211_scan2(void *priv, 10410 struct wpa_driver_scan_params *params) 10411{ 10412 struct i802_bss *bss = priv; 10413 return wpa_driver_nl80211_scan(bss, params); 10414} 10415 10416 10417static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 10418 int reason_code) 10419{ 10420 struct i802_bss *bss = priv; 10421 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 10422} 10423 10424 10425static int driver_nl80211_authenticate(void *priv, 10426 struct wpa_driver_auth_params *params) 10427{ 10428 struct i802_bss *bss = priv; 10429 return wpa_driver_nl80211_authenticate(bss, params); 10430} 10431 10432 10433static void driver_nl80211_deinit(void *priv) 10434{ 10435 struct i802_bss *bss = priv; 10436 wpa_driver_nl80211_deinit(bss); 10437} 10438 10439 10440static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 10441 const char *ifname) 10442{ 10443 struct i802_bss *bss = priv; 10444 return wpa_driver_nl80211_if_remove(bss, type, ifname); 10445} 10446 10447 10448static int driver_nl80211_send_mlme(void *priv, const u8 *data, 10449 size_t data_len, int noack) 10450{ 10451 struct i802_bss *bss = priv; 10452 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 10453 0, 0, 0, 0); 10454} 10455 10456 10457static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 10458{ 10459 struct i802_bss *bss = priv; 10460 return wpa_driver_nl80211_sta_remove(bss, addr); 10461} 10462 10463 10464#if defined(HOSTAPD) || defined(CONFIG_AP) 10465static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 10466 const char *ifname, int vlan_id) 10467{ 10468 struct i802_bss *bss = priv; 10469 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 10470} 10471#endif /* HOSTAPD || CONFIG_AP */ 10472 10473 10474static int driver_nl80211_read_sta_data(void *priv, 10475 struct hostap_sta_driver_data *data, 10476 const u8 *addr) 10477{ 10478 struct i802_bss *bss = priv; 10479 return i802_read_sta_data(bss, data, addr); 10480} 10481 10482 10483static int driver_nl80211_send_action(void *priv, unsigned int freq, 10484 unsigned int wait_time, 10485 const u8 *dst, const u8 *src, 10486 const u8 *bssid, 10487 const u8 *data, size_t data_len, 10488 int no_cck) 10489{ 10490 struct i802_bss *bss = priv; 10491 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 10492 bssid, data, data_len, no_cck); 10493} 10494 10495 10496static int driver_nl80211_probe_req_report(void *priv, int report) 10497{ 10498 struct i802_bss *bss = priv; 10499 return wpa_driver_nl80211_probe_req_report(bss, report); 10500} 10501 10502 10503static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 10504 const u8 *ies, size_t ies_len) 10505{ 10506 int ret; 10507 struct nl_msg *msg; 10508 struct i802_bss *bss = priv; 10509 struct wpa_driver_nl80211_data *drv = bss->drv; 10510 u16 mdid = WPA_GET_LE16(md); 10511 10512 msg = nlmsg_alloc(); 10513 if (!msg) 10514 return -ENOMEM; 10515 10516 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 10517 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 10518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 10519 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10520 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10521 10522 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10523 if (ret) { 10524 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10525 "err=%d (%s)", ret, strerror(-ret)); 10526 } 10527 10528 return ret; 10529 10530nla_put_failure: 10531 nlmsg_free(msg); 10532 return -ENOBUFS; 10533} 10534 10535 10536const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 10537{ 10538 struct i802_bss *bss = priv; 10539 struct wpa_driver_nl80211_data *drv = bss->drv; 10540 10541 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 10542 return NULL; 10543 10544 return bss->addr; 10545} 10546 10547 10548const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10549 .name = "nl80211", 10550 .desc = "Linux nl80211/cfg80211", 10551 .get_bssid = wpa_driver_nl80211_get_bssid, 10552 .get_ssid = wpa_driver_nl80211_get_ssid, 10553 .set_key = driver_nl80211_set_key, 10554 .scan2 = driver_nl80211_scan2, 10555 .sched_scan = wpa_driver_nl80211_sched_scan, 10556 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10557 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10558 .deauthenticate = driver_nl80211_deauthenticate, 10559 .authenticate = driver_nl80211_authenticate, 10560 .associate = wpa_driver_nl80211_associate, 10561 .global_init = nl80211_global_init, 10562 .global_deinit = nl80211_global_deinit, 10563 .init2 = wpa_driver_nl80211_init, 10564 .deinit = driver_nl80211_deinit, 10565 .get_capa = wpa_driver_nl80211_get_capa, 10566 .set_operstate = wpa_driver_nl80211_set_operstate, 10567 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10568 .set_country = wpa_driver_nl80211_set_country, 10569 .set_ap = wpa_driver_nl80211_set_ap, 10570 .set_acl = wpa_driver_nl80211_set_acl, 10571 .if_add = wpa_driver_nl80211_if_add, 10572 .if_remove = driver_nl80211_if_remove, 10573 .send_mlme = driver_nl80211_send_mlme, 10574 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10575 .sta_add = wpa_driver_nl80211_sta_add, 10576 .sta_remove = driver_nl80211_sta_remove, 10577 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10578 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10579#ifdef HOSTAPD 10580 .hapd_init = i802_init, 10581 .hapd_deinit = i802_deinit, 10582 .set_wds_sta = i802_set_wds_sta, 10583#endif /* HOSTAPD */ 10584#if defined(HOSTAPD) || defined(CONFIG_AP) 10585 .get_seqnum = i802_get_seqnum, 10586 .flush = i802_flush, 10587 .get_inact_sec = i802_get_inact_sec, 10588 .sta_clear_stats = i802_sta_clear_stats, 10589 .set_rts = i802_set_rts, 10590 .set_frag = i802_set_frag, 10591 .set_tx_queue_params = i802_set_tx_queue_params, 10592 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10593 .sta_deauth = i802_sta_deauth, 10594 .sta_disassoc = i802_sta_disassoc, 10595#endif /* HOSTAPD || CONFIG_AP */ 10596 .read_sta_data = driver_nl80211_read_sta_data, 10597 .set_freq = i802_set_freq, 10598 .send_action = driver_nl80211_send_action, 10599 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 10600 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 10601 .cancel_remain_on_channel = 10602 wpa_driver_nl80211_cancel_remain_on_channel, 10603 .probe_req_report = driver_nl80211_probe_req_report, 10604 .deinit_ap = wpa_driver_nl80211_deinit_ap, 10605 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 10606 .resume = wpa_driver_nl80211_resume, 10607 .send_ft_action = nl80211_send_ft_action, 10608 .signal_monitor = nl80211_signal_monitor, 10609 .signal_poll = nl80211_signal_poll, 10610 .send_frame = nl80211_send_frame, 10611 .shared_freq = wpa_driver_nl80211_shared_freq, 10612 .set_param = nl80211_set_param, 10613 .get_radio_name = nl80211_get_radio_name, 10614 .add_pmkid = nl80211_add_pmkid, 10615 .remove_pmkid = nl80211_remove_pmkid, 10616 .flush_pmkid = nl80211_flush_pmkid, 10617 .set_rekey_info = nl80211_set_rekey_info, 10618 .poll_client = nl80211_poll_client, 10619 .set_p2p_powersave = nl80211_set_p2p_powersave, 10620 .start_dfs_cac = nl80211_start_radar_detection, 10621 .stop_ap = wpa_driver_nl80211_stop_ap, 10622#ifdef CONFIG_TDLS 10623 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 10624 .tdls_oper = nl80211_tdls_oper, 10625#endif /* CONFIG_TDLS */ 10626 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 10627 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 10628#ifdef ANDROID_P2P 10629 .set_noa = wpa_driver_set_p2p_noa, 10630 .get_noa = wpa_driver_get_p2p_noa, 10631 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 10632#endif 10633#ifdef ANDROID 10634 .driver_cmd = wpa_driver_nl80211_driver_cmd, 10635#endif 10636}; 10637