driver_nl80211.c revision ea69e84a6f4455c59348485895d3d5e3af77a65b
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 struct netlink_data *netlink; 161 struct nl_cb *nl_cb; 162 struct nl_handle *nl; 163 int nl80211_id; 164 int ioctl_sock; /* socket for ioctl() use */ 165 166 struct nl_handle *nl_event; 167}; 168 169struct nl80211_wiphy_data { 170 struct dl_list list; 171 struct dl_list bsss; 172 struct dl_list drvs; 173 174 struct nl_handle *nl_beacons; 175 struct nl_cb *nl_cb; 176 177 int wiphy_idx; 178}; 179 180static void nl80211_global_deinit(void *priv); 181 182struct i802_bss { 183 struct wpa_driver_nl80211_data *drv; 184 struct i802_bss *next; 185 int ifindex; 186 char ifname[IFNAMSIZ + 1]; 187 char brname[IFNAMSIZ]; 188 unsigned int beacon_set:1; 189 unsigned int added_if_into_bridge:1; 190 unsigned int added_bridge:1; 191 unsigned int in_deinit:1; 192 193 u8 addr[ETH_ALEN]; 194 195 int freq; 196 197 void *ctx; 198 struct nl_handle *nl_preq, *nl_mgmt; 199 struct nl_cb *nl_cb; 200 201 struct nl80211_wiphy_data *wiphy_data; 202 struct dl_list wiphy_list; 203}; 204 205struct wpa_driver_nl80211_data { 206 struct nl80211_global *global; 207 struct dl_list list; 208 struct dl_list wiphy_list; 209 char phyname[32]; 210 void *ctx; 211 int ifindex; 212 int if_removed; 213 int if_disabled; 214 int ignore_if_down_event; 215 struct rfkill_data *rfkill; 216 struct wpa_driver_capa capa; 217 u8 *extended_capa, *extended_capa_mask; 218 unsigned int extended_capa_len; 219 int has_capability; 220 221 int operstate; 222 223 int scan_complete_events; 224 225 struct nl_cb *nl_cb; 226 227 u8 auth_bssid[ETH_ALEN]; 228 u8 bssid[ETH_ALEN]; 229 int associated; 230 u8 ssid[32]; 231 size_t ssid_len; 232 enum nl80211_iftype nlmode; 233 enum nl80211_iftype ap_scan_as_station; 234 unsigned int assoc_freq; 235 236 int monitor_sock; 237 int monitor_ifidx; 238 int monitor_refcount; 239 240 unsigned int disabled_11b_rates:1; 241 unsigned int pending_remain_on_chan:1; 242 unsigned int in_interface_list:1; 243 unsigned int device_ap_sme:1; 244 unsigned int poll_command_supported:1; 245 unsigned int data_tx_status:1; 246 unsigned int scan_for_auth:1; 247 unsigned int retry_auth:1; 248 unsigned int use_monitor:1; 249 unsigned int ignore_next_local_disconnect:1; 250 251 u64 remain_on_chan_cookie; 252 u64 send_action_cookie; 253 254 unsigned int last_mgmt_freq; 255 256 struct wpa_driver_scan_filter *filter_ssids; 257 size_t num_filter_ssids; 258 259 struct i802_bss first_bss; 260 261 int eapol_tx_sock; 262 263#ifdef HOSTAPD 264 int eapol_sock; /* socket for EAPOL frames */ 265 266 int default_if_indices[16]; 267 int *if_indices; 268 int num_if_indices; 269 270 int last_freq; 271 int last_freq_ht; 272#endif /* HOSTAPD */ 273 274 /* From failed authentication command */ 275 int auth_freq; 276 u8 auth_bssid_[ETH_ALEN]; 277 u8 auth_ssid[32]; 278 size_t auth_ssid_len; 279 int auth_alg; 280 u8 *auth_ie; 281 size_t auth_ie_len; 282 u8 auth_wep_key[4][16]; 283 size_t auth_wep_key_len[4]; 284 int auth_wep_tx_keyidx; 285 int auth_local_state_change; 286 int auth_p2p; 287}; 288 289 290static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 291static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 292 void *timeout_ctx); 293static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 294 enum nl80211_iftype nlmode); 295static int 296wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 297static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 298 const u8 *addr, int cmd, u16 reason_code, 299 int local_state_change); 300static void nl80211_remove_monitor_interface( 301 struct wpa_driver_nl80211_data *drv); 302static int nl80211_send_frame_cmd(struct i802_bss *bss, 303 unsigned int freq, unsigned int wait, 304 const u8 *buf, size_t buf_len, u64 *cookie, 305 int no_cck, int no_ack, int offchanok); 306static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 307 int report); 308#ifdef ANDROID 309static int android_pno_start(struct i802_bss *bss, 310 struct wpa_driver_scan_params *params); 311static int android_pno_stop(struct i802_bss *bss); 312#endif /* ANDROID */ 313#ifdef ANDROID_P2P 314int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 315int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 316int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 317int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 318 const struct wpabuf *proberesp, 319 const struct wpabuf *assocresp); 320 321#endif 322#ifdef HOSTAPD 323static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 324static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 325static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 326static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 327 enum wpa_driver_if_type type, 328 const char *ifname); 329#else /* HOSTAPD */ 330static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 331{ 332} 333 334static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 335{ 336} 337 338static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 339{ 340 return 0; 341} 342#endif /* HOSTAPD */ 343#ifdef ANDROID 344extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 345 size_t buf_len); 346#endif 347 348static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 349 struct hostapd_freq_params *freq); 350static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 351 int ifindex, int disabled); 352 353static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 354static int wpa_driver_nl80211_authenticate_retry( 355 struct wpa_driver_nl80211_data *drv); 356 357 358static int is_ap_interface(enum nl80211_iftype nlmode) 359{ 360 return (nlmode == NL80211_IFTYPE_AP || 361 nlmode == NL80211_IFTYPE_P2P_GO); 362} 363 364 365static int is_sta_interface(enum nl80211_iftype nlmode) 366{ 367 return (nlmode == NL80211_IFTYPE_STATION || 368 nlmode == NL80211_IFTYPE_P2P_CLIENT); 369} 370 371 372static int is_p2p_interface(enum nl80211_iftype nlmode) 373{ 374 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 375 nlmode == NL80211_IFTYPE_P2P_GO); 376} 377 378 379struct nl80211_bss_info_arg { 380 struct wpa_driver_nl80211_data *drv; 381 struct wpa_scan_results *res; 382 unsigned int assoc_freq; 383 u8 assoc_bssid[ETH_ALEN]; 384}; 385 386static int bss_info_handler(struct nl_msg *msg, void *arg); 387 388 389/* nl80211 code */ 390static int ack_handler(struct nl_msg *msg, void *arg) 391{ 392 int *err = arg; 393 *err = 0; 394 return NL_STOP; 395} 396 397static int finish_handler(struct nl_msg *msg, void *arg) 398{ 399 int *ret = arg; 400 *ret = 0; 401 return NL_SKIP; 402} 403 404static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 405 void *arg) 406{ 407 int *ret = arg; 408 *ret = err->error; 409 return NL_SKIP; 410} 411 412 413static int no_seq_check(struct nl_msg *msg, void *arg) 414{ 415 return NL_OK; 416} 417 418 419static int send_and_recv(struct nl80211_global *global, 420 struct nl_handle *nl_handle, struct nl_msg *msg, 421 int (*valid_handler)(struct nl_msg *, void *), 422 void *valid_data) 423{ 424 struct nl_cb *cb; 425 int err = -ENOMEM; 426 427 cb = nl_cb_clone(global->nl_cb); 428 if (!cb) 429 goto out; 430 431 err = nl_send_auto_complete(nl_handle, msg); 432 if (err < 0) 433 goto out; 434 435 err = 1; 436 437 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 438 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 439 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 440 441 if (valid_handler) 442 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 443 valid_handler, valid_data); 444 445 while (err > 0) 446 nl_recvmsgs(nl_handle, cb); 447 out: 448 nl_cb_put(cb); 449 nlmsg_free(msg); 450 return err; 451} 452 453 454static int send_and_recv_msgs_global(struct nl80211_global *global, 455 struct nl_msg *msg, 456 int (*valid_handler)(struct nl_msg *, void *), 457 void *valid_data) 458{ 459 return send_and_recv(global, global->nl, msg, valid_handler, 460 valid_data); 461} 462 463 464#ifndef ANDROID 465static 466#endif 467int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 468 struct nl_msg *msg, 469 int (*valid_handler)(struct nl_msg *, void *), 470 void *valid_data) 471{ 472 return send_and_recv(drv->global, drv->global->nl, msg, 473 valid_handler, valid_data); 474} 475 476 477struct family_data { 478 const char *group; 479 int id; 480}; 481 482 483static int family_handler(struct nl_msg *msg, void *arg) 484{ 485 struct family_data *res = arg; 486 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 487 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 488 struct nlattr *mcgrp; 489 int i; 490 491 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 492 genlmsg_attrlen(gnlh, 0), NULL); 493 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 494 return NL_SKIP; 495 496 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 497 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 498 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 499 nla_len(mcgrp), NULL); 500 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 501 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 502 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 503 res->group, 504 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 505 continue; 506 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 507 break; 508 }; 509 510 return NL_SKIP; 511} 512 513 514static int nl_get_multicast_id(struct nl80211_global *global, 515 const char *family, const char *group) 516{ 517 struct nl_msg *msg; 518 int ret = -1; 519 struct family_data res = { group, -ENOENT }; 520 521 msg = nlmsg_alloc(); 522 if (!msg) 523 return -ENOMEM; 524 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 525 0, 0, CTRL_CMD_GETFAMILY, 0); 526 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 527 528 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 529 msg = NULL; 530 if (ret == 0) 531 ret = res.id; 532 533nla_put_failure: 534 nlmsg_free(msg); 535 return ret; 536} 537 538 539static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 540 struct nl_msg *msg, int flags, uint8_t cmd) 541{ 542 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 543 0, flags, cmd, 0); 544} 545 546 547struct wiphy_idx_data { 548 int wiphy_idx; 549}; 550 551 552static int netdev_info_handler(struct nl_msg *msg, void *arg) 553{ 554 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 555 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 556 struct wiphy_idx_data *info = arg; 557 558 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 559 genlmsg_attrlen(gnlh, 0), NULL); 560 561 if (tb[NL80211_ATTR_WIPHY]) 562 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 563 564 return NL_SKIP; 565} 566 567 568static int nl80211_get_wiphy_index(struct i802_bss *bss) 569{ 570 struct nl_msg *msg; 571 struct wiphy_idx_data data = { 572 .wiphy_idx = -1, 573 }; 574 575 msg = nlmsg_alloc(); 576 if (!msg) 577 return -1; 578 579 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 580 581 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 582 583 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 584 return data.wiphy_idx; 585 msg = NULL; 586nla_put_failure: 587 nlmsg_free(msg); 588 return -1; 589} 590 591 592static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 593 struct nl80211_wiphy_data *w) 594{ 595 struct nl_msg *msg; 596 int ret = -1; 597 598 msg = nlmsg_alloc(); 599 if (!msg) 600 return -1; 601 602 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 603 604 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 605 606 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 607 msg = NULL; 608 if (ret) { 609 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 610 "failed: ret=%d (%s)", 611 ret, strerror(-ret)); 612 goto nla_put_failure; 613 } 614 ret = 0; 615nla_put_failure: 616 nlmsg_free(msg); 617 return ret; 618} 619 620 621static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 622{ 623 struct nl80211_wiphy_data *w = eloop_ctx; 624 625 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 626 627 nl_recvmsgs(handle, w->nl_cb); 628} 629 630 631static int process_beacon_event(struct nl_msg *msg, void *arg) 632{ 633 struct nl80211_wiphy_data *w = arg; 634 struct wpa_driver_nl80211_data *drv; 635 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 636 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 637 union wpa_event_data event; 638 639 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 640 genlmsg_attrlen(gnlh, 0), NULL); 641 642 if (gnlh->cmd != NL80211_CMD_FRAME) { 643 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 644 gnlh->cmd); 645 return NL_SKIP; 646 } 647 648 if (!tb[NL80211_ATTR_FRAME]) 649 return NL_SKIP; 650 651 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 652 wiphy_list) { 653 os_memset(&event, 0, sizeof(event)); 654 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 655 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 656 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 657 } 658 659 return NL_SKIP; 660} 661 662 663static struct nl80211_wiphy_data * 664nl80211_get_wiphy_data_ap(struct i802_bss *bss) 665{ 666 static DEFINE_DL_LIST(nl80211_wiphys); 667 struct nl80211_wiphy_data *w; 668 int wiphy_idx, found = 0; 669 struct i802_bss *tmp_bss; 670 671 if (bss->wiphy_data != NULL) 672 return bss->wiphy_data; 673 674 wiphy_idx = nl80211_get_wiphy_index(bss); 675 676 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 677 if (w->wiphy_idx == wiphy_idx) 678 goto add; 679 } 680 681 /* alloc new one */ 682 w = os_zalloc(sizeof(*w)); 683 if (w == NULL) 684 return NULL; 685 w->wiphy_idx = wiphy_idx; 686 dl_list_init(&w->bsss); 687 dl_list_init(&w->drvs); 688 689 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 690 if (!w->nl_cb) { 691 os_free(w); 692 return NULL; 693 } 694 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 695 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 696 w); 697 698 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 699 "wiphy beacons"); 700 if (w->nl_beacons == NULL) { 701 os_free(w); 702 return NULL; 703 } 704 705 if (nl80211_register_beacons(bss->drv, w)) { 706 nl_destroy_handles(&w->nl_beacons); 707 os_free(w); 708 return NULL; 709 } 710 711 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 712 nl80211_recv_beacons, w, w->nl_beacons); 713 714 dl_list_add(&nl80211_wiphys, &w->list); 715 716add: 717 /* drv entry for this bss already there? */ 718 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 719 if (tmp_bss->drv == bss->drv) { 720 found = 1; 721 break; 722 } 723 } 724 /* if not add it */ 725 if (!found) 726 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 727 728 dl_list_add(&w->bsss, &bss->wiphy_list); 729 bss->wiphy_data = w; 730 return w; 731} 732 733 734static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 735{ 736 struct nl80211_wiphy_data *w = bss->wiphy_data; 737 struct i802_bss *tmp_bss; 738 int found = 0; 739 740 if (w == NULL) 741 return; 742 bss->wiphy_data = NULL; 743 dl_list_del(&bss->wiphy_list); 744 745 /* still any for this drv present? */ 746 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 747 if (tmp_bss->drv == bss->drv) { 748 found = 1; 749 break; 750 } 751 } 752 /* if not remove it */ 753 if (!found) 754 dl_list_del(&bss->drv->wiphy_list); 755 756 if (!dl_list_empty(&w->bsss)) 757 return; 758 759 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 760 761 nl_cb_put(w->nl_cb); 762 nl_destroy_handles(&w->nl_beacons); 763 dl_list_del(&w->list); 764 os_free(w); 765} 766 767 768static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 769{ 770 struct i802_bss *bss = priv; 771 struct wpa_driver_nl80211_data *drv = bss->drv; 772 if (!drv->associated) 773 return -1; 774 os_memcpy(bssid, drv->bssid, ETH_ALEN); 775 return 0; 776} 777 778 779static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 780{ 781 struct i802_bss *bss = priv; 782 struct wpa_driver_nl80211_data *drv = bss->drv; 783 if (!drv->associated) 784 return -1; 785 os_memcpy(ssid, drv->ssid, drv->ssid_len); 786 return drv->ssid_len; 787} 788 789 790static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 791 char *buf, size_t len, int del) 792{ 793 union wpa_event_data event; 794 795 os_memset(&event, 0, sizeof(event)); 796 if (len > sizeof(event.interface_status.ifname)) 797 len = sizeof(event.interface_status.ifname) - 1; 798 os_memcpy(event.interface_status.ifname, buf, len); 799 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 800 EVENT_INTERFACE_ADDED; 801 802 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 803 del ? "DEL" : "NEW", 804 event.interface_status.ifname, 805 del ? "removed" : "added"); 806 807 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 808 if (del) { 809 if (drv->if_removed) { 810 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 811 "already set - ignore event"); 812 return; 813 } 814 drv->if_removed = 1; 815 } else { 816 if (if_nametoindex(drv->first_bss.ifname) == 0) { 817 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 818 "does not exist - ignore " 819 "RTM_NEWLINK", 820 drv->first_bss.ifname); 821 return; 822 } 823 if (!drv->if_removed) { 824 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 825 "already cleared - ignore event"); 826 return; 827 } 828 drv->if_removed = 0; 829 } 830 } 831 832 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 833} 834 835 836static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 837 u8 *buf, size_t len) 838{ 839 int attrlen, rta_len; 840 struct rtattr *attr; 841 842 attrlen = len; 843 attr = (struct rtattr *) buf; 844 845 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 846 while (RTA_OK(attr, attrlen)) { 847 if (attr->rta_type == IFLA_IFNAME) { 848 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 849 == 0) 850 return 1; 851 else 852 break; 853 } 854 attr = RTA_NEXT(attr, attrlen); 855 } 856 857 return 0; 858} 859 860 861static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 862 int ifindex, u8 *buf, size_t len) 863{ 864 if (drv->ifindex == ifindex) 865 return 1; 866 867 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 868 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); 869 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 870 "interface"); 871 wpa_driver_nl80211_finish_drv_init(drv); 872 return 1; 873 } 874 875 return 0; 876} 877 878 879static struct wpa_driver_nl80211_data * 880nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 881{ 882 struct wpa_driver_nl80211_data *drv; 883 dl_list_for_each(drv, &global->interfaces, 884 struct wpa_driver_nl80211_data, list) { 885 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 886 have_ifidx(drv, idx)) 887 return drv; 888 } 889 return NULL; 890} 891 892 893static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 894 struct ifinfomsg *ifi, 895 u8 *buf, size_t len) 896{ 897 struct nl80211_global *global = ctx; 898 struct wpa_driver_nl80211_data *drv; 899 int attrlen, rta_len; 900 struct rtattr *attr; 901 u32 brid = 0; 902 char namebuf[IFNAMSIZ]; 903 904 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 905 if (!drv) { 906 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 907 "ifindex %d", ifi->ifi_index); 908 return; 909 } 910 911 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 912 "(%s%s%s%s)", 913 drv->operstate, ifi->ifi_flags, 914 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 915 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 916 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 917 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 918 919 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 920 if (if_indextoname(ifi->ifi_index, namebuf) && 921 linux_iface_up(drv->global->ioctl_sock, 922 drv->first_bss.ifname) > 0) { 923 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 924 "event since interface %s is up", namebuf); 925 return; 926 } 927 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 928 if (drv->ignore_if_down_event) { 929 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 930 "event generated by mode change"); 931 drv->ignore_if_down_event = 0; 932 } else { 933 drv->if_disabled = 1; 934 wpa_supplicant_event(drv->ctx, 935 EVENT_INTERFACE_DISABLED, NULL); 936 } 937 } 938 939 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 940 if (if_indextoname(ifi->ifi_index, namebuf) && 941 linux_iface_up(drv->global->ioctl_sock, 942 drv->first_bss.ifname) == 0) { 943 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 944 "event since interface %s is down", 945 namebuf); 946 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 947 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 948 "event since interface %s does not exist", 949 drv->first_bss.ifname); 950 } else if (drv->if_removed) { 951 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 952 "event since interface %s is marked " 953 "removed", drv->first_bss.ifname); 954 } else { 955 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 956 drv->if_disabled = 0; 957 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 958 NULL); 959 } 960 } 961 962 /* 963 * Some drivers send the association event before the operup event--in 964 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 965 * fails. This will hit us when wpa_supplicant does not need to do 966 * IEEE 802.1X authentication 967 */ 968 if (drv->operstate == 1 && 969 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 970 !(ifi->ifi_flags & IFF_RUNNING)) 971 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 972 -1, IF_OPER_UP); 973 974 attrlen = len; 975 attr = (struct rtattr *) buf; 976 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 977 while (RTA_OK(attr, attrlen)) { 978 if (attr->rta_type == IFLA_IFNAME) { 979 wpa_driver_nl80211_event_link( 980 drv, 981 ((char *) attr) + rta_len, 982 attr->rta_len - rta_len, 0); 983 } else if (attr->rta_type == IFLA_MASTER) 984 brid = nla_get_u32((struct nlattr *) attr); 985 attr = RTA_NEXT(attr, attrlen); 986 } 987 988 if (ifi->ifi_family == AF_BRIDGE && brid) { 989 /* device has been added to bridge */ 990 if_indextoname(brid, namebuf); 991 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 992 brid, namebuf); 993 add_ifidx(drv, brid); 994 } 995} 996 997 998static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 999 struct ifinfomsg *ifi, 1000 u8 *buf, size_t len) 1001{ 1002 struct nl80211_global *global = ctx; 1003 struct wpa_driver_nl80211_data *drv; 1004 int attrlen, rta_len; 1005 struct rtattr *attr; 1006 u32 brid = 0; 1007 1008 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1009 if (!drv) { 1010 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1011 "foreign ifindex %d", ifi->ifi_index); 1012 return; 1013 } 1014 1015 attrlen = len; 1016 attr = (struct rtattr *) buf; 1017 1018 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1019 while (RTA_OK(attr, attrlen)) { 1020 if (attr->rta_type == IFLA_IFNAME) { 1021 wpa_driver_nl80211_event_link( 1022 drv, 1023 ((char *) attr) + rta_len, 1024 attr->rta_len - rta_len, 1); 1025 } else if (attr->rta_type == IFLA_MASTER) 1026 brid = nla_get_u32((struct nlattr *) attr); 1027 attr = RTA_NEXT(attr, attrlen); 1028 } 1029 1030 if (ifi->ifi_family == AF_BRIDGE && brid) { 1031 /* device has been removed from bridge */ 1032 char namebuf[IFNAMSIZ]; 1033 if_indextoname(brid, namebuf); 1034 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1035 "%s", brid, namebuf); 1036 del_ifidx(drv, brid); 1037 } 1038} 1039 1040 1041static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1042 const u8 *frame, size_t len) 1043{ 1044 const struct ieee80211_mgmt *mgmt; 1045 union wpa_event_data event; 1046 1047 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1048 mgmt = (const struct ieee80211_mgmt *) frame; 1049 if (len < 24 + sizeof(mgmt->u.auth)) { 1050 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1051 "frame"); 1052 return; 1053 } 1054 1055 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1056 os_memset(&event, 0, sizeof(event)); 1057 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1058 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1059 event.auth.auth_transaction = 1060 le_to_host16(mgmt->u.auth.auth_transaction); 1061 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1062 if (len > 24 + sizeof(mgmt->u.auth)) { 1063 event.auth.ies = mgmt->u.auth.variable; 1064 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1065 } 1066 1067 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1068} 1069 1070 1071static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1072{ 1073 struct nl_msg *msg; 1074 int ret; 1075 struct nl80211_bss_info_arg arg; 1076 1077 os_memset(&arg, 0, sizeof(arg)); 1078 msg = nlmsg_alloc(); 1079 if (!msg) 1080 goto nla_put_failure; 1081 1082 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1083 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1084 1085 arg.drv = drv; 1086 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1087 msg = NULL; 1088 if (ret == 0) { 1089 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1090 "associated BSS from scan results: %u MHz", 1091 arg.assoc_freq); 1092 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; 1093 } 1094 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1095 "(%s)", ret, strerror(-ret)); 1096nla_put_failure: 1097 nlmsg_free(msg); 1098 return drv->assoc_freq; 1099} 1100 1101 1102static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1103 const u8 *frame, size_t len) 1104{ 1105 const struct ieee80211_mgmt *mgmt; 1106 union wpa_event_data event; 1107 u16 status; 1108 1109 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1110 mgmt = (const struct ieee80211_mgmt *) frame; 1111 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1112 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1113 "frame"); 1114 return; 1115 } 1116 1117 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1118 if (status != WLAN_STATUS_SUCCESS) { 1119 os_memset(&event, 0, sizeof(event)); 1120 event.assoc_reject.bssid = mgmt->bssid; 1121 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1122 event.assoc_reject.resp_ies = 1123 (u8 *) mgmt->u.assoc_resp.variable; 1124 event.assoc_reject.resp_ies_len = 1125 len - 24 - sizeof(mgmt->u.assoc_resp); 1126 } 1127 event.assoc_reject.status_code = status; 1128 1129 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1130 return; 1131 } 1132 1133 drv->associated = 1; 1134 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1135 1136 os_memset(&event, 0, sizeof(event)); 1137 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1138 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1139 event.assoc_info.resp_ies_len = 1140 len - 24 - sizeof(mgmt->u.assoc_resp); 1141 } 1142 1143 event.assoc_info.freq = drv->assoc_freq; 1144 1145 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1146} 1147 1148 1149static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1150 enum nl80211_commands cmd, struct nlattr *status, 1151 struct nlattr *addr, struct nlattr *req_ie, 1152 struct nlattr *resp_ie) 1153{ 1154 union wpa_event_data event; 1155 1156 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1157 /* 1158 * Avoid reporting two association events that would confuse 1159 * the core code. 1160 */ 1161 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1162 "when using userspace SME", cmd); 1163 return; 1164 } 1165 1166 if (cmd == NL80211_CMD_CONNECT) 1167 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1168 else if (cmd == NL80211_CMD_ROAM) 1169 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1170 1171 os_memset(&event, 0, sizeof(event)); 1172 if (cmd == NL80211_CMD_CONNECT && 1173 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1174 if (addr) 1175 event.assoc_reject.bssid = nla_data(addr); 1176 if (resp_ie) { 1177 event.assoc_reject.resp_ies = nla_data(resp_ie); 1178 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1179 } 1180 event.assoc_reject.status_code = nla_get_u16(status); 1181 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1182 return; 1183 } 1184 1185 drv->associated = 1; 1186 if (addr) 1187 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1188 1189 if (req_ie) { 1190 event.assoc_info.req_ies = nla_data(req_ie); 1191 event.assoc_info.req_ies_len = nla_len(req_ie); 1192 } 1193 if (resp_ie) { 1194 event.assoc_info.resp_ies = nla_data(resp_ie); 1195 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1196 } 1197 1198 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1199 1200 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1201} 1202 1203 1204static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1205 struct nlattr *reason, struct nlattr *addr, 1206 struct nlattr *by_ap) 1207{ 1208 union wpa_event_data data; 1209 unsigned int locally_generated = by_ap == NULL; 1210 1211 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1212 /* 1213 * Avoid reporting two disassociation events that could 1214 * confuse the core code. 1215 */ 1216 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1217 "event when using userspace SME"); 1218 return; 1219 } 1220 1221 if (drv->ignore_next_local_disconnect) { 1222 drv->ignore_next_local_disconnect = 0; 1223 if (locally_generated) { 1224 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1225 "event triggered during reassociation"); 1226 return; 1227 } 1228 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1229 "disconnect but got another disconnect " 1230 "event first"); 1231 } 1232 1233 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1234 drv->associated = 0; 1235 os_memset(&data, 0, sizeof(data)); 1236 if (reason) 1237 data.deauth_info.reason_code = nla_get_u16(reason); 1238 data.deauth_info.locally_generated = by_ap == NULL; 1239 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1240} 1241 1242 1243static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1244 struct nlattr *freq, struct nlattr *type) 1245{ 1246 union wpa_event_data data; 1247 int ht_enabled = 1; 1248 int chan_offset = 0; 1249 1250 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1251 1252 if (!freq || !type) 1253 return; 1254 1255 switch (nla_get_u32(type)) { 1256 case NL80211_CHAN_NO_HT: 1257 ht_enabled = 0; 1258 break; 1259 case NL80211_CHAN_HT20: 1260 break; 1261 case NL80211_CHAN_HT40PLUS: 1262 chan_offset = 1; 1263 break; 1264 case NL80211_CHAN_HT40MINUS: 1265 chan_offset = -1; 1266 break; 1267 } 1268 1269 data.ch_switch.freq = nla_get_u32(freq); 1270 data.ch_switch.ht_enabled = ht_enabled; 1271 data.ch_switch.ch_offset = chan_offset; 1272 1273 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1274} 1275 1276 1277static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1278 enum nl80211_commands cmd, struct nlattr *addr) 1279{ 1280 union wpa_event_data event; 1281 enum wpa_event_type ev; 1282 1283 if (nla_len(addr) != ETH_ALEN) 1284 return; 1285 1286 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1287 cmd, MAC2STR((u8 *) nla_data(addr))); 1288 1289 if (cmd == NL80211_CMD_AUTHENTICATE) 1290 ev = EVENT_AUTH_TIMED_OUT; 1291 else if (cmd == NL80211_CMD_ASSOCIATE) 1292 ev = EVENT_ASSOC_TIMED_OUT; 1293 else 1294 return; 1295 1296 os_memset(&event, 0, sizeof(event)); 1297 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1298 wpa_supplicant_event(drv->ctx, ev, &event); 1299} 1300 1301 1302static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1303 struct nlattr *freq, struct nlattr *sig, 1304 const u8 *frame, size_t len) 1305{ 1306 const struct ieee80211_mgmt *mgmt; 1307 union wpa_event_data event; 1308 u16 fc, stype; 1309 int ssi_signal = 0; 1310 1311 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1312 mgmt = (const struct ieee80211_mgmt *) frame; 1313 if (len < 24) { 1314 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1315 return; 1316 } 1317 1318 fc = le_to_host16(mgmt->frame_control); 1319 stype = WLAN_FC_GET_STYPE(fc); 1320 1321 if (sig) 1322 ssi_signal = (s32) nla_get_u32(sig); 1323 1324 os_memset(&event, 0, sizeof(event)); 1325 if (freq) { 1326 event.rx_action.freq = nla_get_u32(freq); 1327 drv->last_mgmt_freq = event.rx_action.freq; 1328 } 1329 if (stype == WLAN_FC_STYPE_ACTION) { 1330 event.rx_action.da = mgmt->da; 1331 event.rx_action.sa = mgmt->sa; 1332 event.rx_action.bssid = mgmt->bssid; 1333 event.rx_action.category = mgmt->u.action.category; 1334 event.rx_action.data = &mgmt->u.action.category + 1; 1335 event.rx_action.len = frame + len - event.rx_action.data; 1336 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1337 } else { 1338 event.rx_mgmt.frame = frame; 1339 event.rx_mgmt.frame_len = len; 1340 event.rx_mgmt.ssi_signal = ssi_signal; 1341 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1342 } 1343} 1344 1345 1346static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1347 struct nlattr *cookie, const u8 *frame, 1348 size_t len, struct nlattr *ack) 1349{ 1350 union wpa_event_data event; 1351 const struct ieee80211_hdr *hdr; 1352 u16 fc; 1353 1354 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1355 if (!is_ap_interface(drv->nlmode)) { 1356 u64 cookie_val; 1357 1358 if (!cookie) 1359 return; 1360 1361 cookie_val = nla_get_u64(cookie); 1362 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1363 " cookie=0%llx%s (ack=%d)", 1364 (long long unsigned int) cookie_val, 1365 cookie_val == drv->send_action_cookie ? 1366 " (match)" : " (unknown)", ack != NULL); 1367 if (cookie_val != drv->send_action_cookie) 1368 return; 1369 } 1370 1371 hdr = (const struct ieee80211_hdr *) frame; 1372 fc = le_to_host16(hdr->frame_control); 1373 1374 os_memset(&event, 0, sizeof(event)); 1375 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1376 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1377 event.tx_status.dst = hdr->addr1; 1378 event.tx_status.data = frame; 1379 event.tx_status.data_len = len; 1380 event.tx_status.ack = ack != NULL; 1381 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1382} 1383 1384 1385static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1386 enum wpa_event_type type, 1387 const u8 *frame, size_t len) 1388{ 1389 const struct ieee80211_mgmt *mgmt; 1390 union wpa_event_data event; 1391 const u8 *bssid = NULL; 1392 u16 reason_code = 0; 1393 1394 if (type == EVENT_DEAUTH) 1395 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1396 else 1397 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1398 1399 mgmt = (const struct ieee80211_mgmt *) frame; 1400 if (len >= 24) { 1401 bssid = mgmt->bssid; 1402 1403 if (drv->associated != 0 && 1404 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1405 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1406 /* 1407 * We have presumably received this deauth as a 1408 * response to a clear_state_mismatch() outgoing 1409 * deauth. Don't let it take us offline! 1410 */ 1411 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1412 "from Unknown BSSID " MACSTR " -- ignoring", 1413 MAC2STR(bssid)); 1414 return; 1415 } 1416 } 1417 1418 drv->associated = 0; 1419 os_memset(&event, 0, sizeof(event)); 1420 1421 /* Note: Same offset for Reason Code in both frame subtypes */ 1422 if (len >= 24 + sizeof(mgmt->u.deauth)) 1423 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1424 1425 if (type == EVENT_DISASSOC) { 1426 event.disassoc_info.locally_generated = 1427 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1428 event.disassoc_info.addr = bssid; 1429 event.disassoc_info.reason_code = reason_code; 1430 if (frame + len > mgmt->u.disassoc.variable) { 1431 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1432 event.disassoc_info.ie_len = frame + len - 1433 mgmt->u.disassoc.variable; 1434 } 1435 } else { 1436 event.deauth_info.locally_generated = 1437 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1438 event.deauth_info.addr = bssid; 1439 event.deauth_info.reason_code = reason_code; 1440 if (frame + len > mgmt->u.deauth.variable) { 1441 event.deauth_info.ie = mgmt->u.deauth.variable; 1442 event.deauth_info.ie_len = frame + len - 1443 mgmt->u.deauth.variable; 1444 } 1445 } 1446 1447 wpa_supplicant_event(drv->ctx, type, &event); 1448} 1449 1450 1451static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1452 enum wpa_event_type type, 1453 const u8 *frame, size_t len) 1454{ 1455 const struct ieee80211_mgmt *mgmt; 1456 union wpa_event_data event; 1457 u16 reason_code = 0; 1458 1459 if (type == EVENT_UNPROT_DEAUTH) 1460 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1461 else 1462 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1463 1464 if (len < 24) 1465 return; 1466 1467 mgmt = (const struct ieee80211_mgmt *) frame; 1468 1469 os_memset(&event, 0, sizeof(event)); 1470 /* Note: Same offset for Reason Code in both frame subtypes */ 1471 if (len >= 24 + sizeof(mgmt->u.deauth)) 1472 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1473 1474 if (type == EVENT_UNPROT_DISASSOC) { 1475 event.unprot_disassoc.sa = mgmt->sa; 1476 event.unprot_disassoc.da = mgmt->da; 1477 event.unprot_disassoc.reason_code = reason_code; 1478 } else { 1479 event.unprot_deauth.sa = mgmt->sa; 1480 event.unprot_deauth.da = mgmt->da; 1481 event.unprot_deauth.reason_code = reason_code; 1482 } 1483 1484 wpa_supplicant_event(drv->ctx, type, &event); 1485} 1486 1487 1488static void mlme_event(struct i802_bss *bss, 1489 enum nl80211_commands cmd, struct nlattr *frame, 1490 struct nlattr *addr, struct nlattr *timed_out, 1491 struct nlattr *freq, struct nlattr *ack, 1492 struct nlattr *cookie, struct nlattr *sig) 1493{ 1494 struct wpa_driver_nl80211_data *drv = bss->drv; 1495 const u8 *data; 1496 size_t len; 1497 1498 if (timed_out && addr) { 1499 mlme_timeout_event(drv, cmd, addr); 1500 return; 1501 } 1502 1503 if (frame == NULL) { 1504 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " 1505 "data", cmd); 1506 return; 1507 } 1508 1509 data = nla_data(frame); 1510 len = nla_len(frame); 1511 if (len < 4 + 2 * ETH_ALEN) { 1512 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d on %s(" MACSTR 1513 ") - too short", 1514 cmd, bss->ifname, MAC2STR(bss->addr)); 1515 return; 1516 } 1517 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d on %s(" MACSTR ") A1=" 1518 MACSTR " A2=" MACSTR, cmd, bss->ifname, MAC2STR(bss->addr), 1519 MAC2STR(data + 4), MAC2STR(data + 4 + ETH_ALEN)); 1520 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1521 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1522 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1523 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1524 "for foreign address", bss->ifname); 1525 return; 1526 } 1527 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1528 nla_data(frame), nla_len(frame)); 1529 1530 switch (cmd) { 1531 case NL80211_CMD_AUTHENTICATE: 1532 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1533 break; 1534 case NL80211_CMD_ASSOCIATE: 1535 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1536 break; 1537 case NL80211_CMD_DEAUTHENTICATE: 1538 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1539 nla_data(frame), nla_len(frame)); 1540 break; 1541 case NL80211_CMD_DISASSOCIATE: 1542 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1543 nla_data(frame), nla_len(frame)); 1544 break; 1545 case NL80211_CMD_FRAME: 1546 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1547 nla_len(frame)); 1548 break; 1549 case NL80211_CMD_FRAME_TX_STATUS: 1550 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1551 nla_len(frame), ack); 1552 break; 1553 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1554 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1555 nla_data(frame), nla_len(frame)); 1556 break; 1557 case NL80211_CMD_UNPROT_DISASSOCIATE: 1558 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1559 nla_data(frame), nla_len(frame)); 1560 break; 1561 default: 1562 break; 1563 } 1564} 1565 1566 1567static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1568 struct nlattr *tb[]) 1569{ 1570 union wpa_event_data data; 1571 1572 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1573 os_memset(&data, 0, sizeof(data)); 1574 if (tb[NL80211_ATTR_MAC]) { 1575 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1576 nla_data(tb[NL80211_ATTR_MAC]), 1577 nla_len(tb[NL80211_ATTR_MAC])); 1578 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1579 } 1580 if (tb[NL80211_ATTR_KEY_SEQ]) { 1581 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1582 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1583 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1584 } 1585 if (tb[NL80211_ATTR_KEY_TYPE]) { 1586 enum nl80211_key_type key_type = 1587 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1588 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1589 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1590 data.michael_mic_failure.unicast = 1; 1591 } else 1592 data.michael_mic_failure.unicast = 1; 1593 1594 if (tb[NL80211_ATTR_KEY_IDX]) { 1595 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1596 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1597 } 1598 1599 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1600} 1601 1602 1603static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1604 struct nlattr *tb[]) 1605{ 1606 if (tb[NL80211_ATTR_MAC] == NULL) { 1607 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1608 "event"); 1609 return; 1610 } 1611 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1612 drv->associated = 1; 1613 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1614 MAC2STR(drv->bssid)); 1615 1616 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1617} 1618 1619 1620static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1621 int cancel_event, struct nlattr *tb[]) 1622{ 1623 unsigned int freq, chan_type, duration; 1624 union wpa_event_data data; 1625 u64 cookie; 1626 1627 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1628 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1629 else 1630 freq = 0; 1631 1632 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1633 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1634 else 1635 chan_type = 0; 1636 1637 if (tb[NL80211_ATTR_DURATION]) 1638 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1639 else 1640 duration = 0; 1641 1642 if (tb[NL80211_ATTR_COOKIE]) 1643 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1644 else 1645 cookie = 0; 1646 1647 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1648 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1649 cancel_event, freq, chan_type, duration, 1650 (long long unsigned int) cookie, 1651 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1652 1653 if (cookie != drv->remain_on_chan_cookie) 1654 return; /* not for us */ 1655 1656 if (cancel_event) 1657 drv->pending_remain_on_chan = 0; 1658 1659 os_memset(&data, 0, sizeof(data)); 1660 data.remain_on_channel.freq = freq; 1661 data.remain_on_channel.duration = duration; 1662 wpa_supplicant_event(drv->ctx, cancel_event ? 1663 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1664 EVENT_REMAIN_ON_CHANNEL, &data); 1665} 1666 1667 1668static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1669 struct nlattr *tb[]) 1670{ 1671 union wpa_event_data data; 1672 1673 os_memset(&data, 0, sizeof(data)); 1674 1675 if (tb[NL80211_ATTR_IE]) { 1676 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1677 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1678 } 1679 1680 if (tb[NL80211_ATTR_IE_RIC]) { 1681 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1682 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1683 } 1684 1685 if (tb[NL80211_ATTR_MAC]) 1686 os_memcpy(data.ft_ies.target_ap, 1687 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1688 1689 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1690 MAC2STR(data.ft_ies.target_ap)); 1691 1692 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1693} 1694 1695 1696static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1697 struct nlattr *tb[]) 1698{ 1699 union wpa_event_data event; 1700 struct nlattr *nl; 1701 int rem; 1702 struct scan_info *info; 1703#define MAX_REPORT_FREQS 50 1704 int freqs[MAX_REPORT_FREQS]; 1705 int num_freqs = 0; 1706 1707 if (drv->scan_for_auth) { 1708 drv->scan_for_auth = 0; 1709 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1710 "cfg80211 BSS entry"); 1711 wpa_driver_nl80211_authenticate_retry(drv); 1712 return; 1713 } 1714 1715 os_memset(&event, 0, sizeof(event)); 1716 info = &event.scan_info; 1717 info->aborted = aborted; 1718 1719 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1720 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1721 struct wpa_driver_scan_ssid *s = 1722 &info->ssids[info->num_ssids]; 1723 s->ssid = nla_data(nl); 1724 s->ssid_len = nla_len(nl); 1725 info->num_ssids++; 1726 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1727 break; 1728 } 1729 } 1730 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1731 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1732 { 1733 freqs[num_freqs] = nla_get_u32(nl); 1734 num_freqs++; 1735 if (num_freqs == MAX_REPORT_FREQS - 1) 1736 break; 1737 } 1738 info->freqs = freqs; 1739 info->num_freqs = num_freqs; 1740 } 1741 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1742} 1743 1744 1745static int get_link_signal(struct nl_msg *msg, void *arg) 1746{ 1747 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1748 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1749 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1750 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1751 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1752 }; 1753 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1754 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1755 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1756 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1757 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1758 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1759 }; 1760 struct wpa_signal_info *sig_change = arg; 1761 1762 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1763 genlmsg_attrlen(gnlh, 0), NULL); 1764 if (!tb[NL80211_ATTR_STA_INFO] || 1765 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 1766 tb[NL80211_ATTR_STA_INFO], policy)) 1767 return NL_SKIP; 1768 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 1769 return NL_SKIP; 1770 1771 sig_change->current_signal = 1772 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 1773 1774 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 1775 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 1776 sinfo[NL80211_STA_INFO_TX_BITRATE], 1777 rate_policy)) { 1778 sig_change->current_txrate = 0; 1779 } else { 1780 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 1781 sig_change->current_txrate = 1782 nla_get_u16(rinfo[ 1783 NL80211_RATE_INFO_BITRATE]) * 100; 1784 } 1785 } 1786 } 1787 1788 return NL_SKIP; 1789} 1790 1791 1792static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 1793 struct wpa_signal_info *sig) 1794{ 1795 struct nl_msg *msg; 1796 1797 sig->current_signal = -9999; 1798 sig->current_txrate = 0; 1799 1800 msg = nlmsg_alloc(); 1801 if (!msg) 1802 return -ENOMEM; 1803 1804 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 1805 1806 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1807 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 1808 1809 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 1810 nla_put_failure: 1811 nlmsg_free(msg); 1812 return -ENOBUFS; 1813} 1814 1815 1816static int get_link_noise(struct nl_msg *msg, void *arg) 1817{ 1818 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1819 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1820 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1821 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1822 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1823 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1824 }; 1825 struct wpa_signal_info *sig_change = arg; 1826 1827 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1828 genlmsg_attrlen(gnlh, 0), NULL); 1829 1830 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1831 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 1832 return NL_SKIP; 1833 } 1834 1835 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1836 tb[NL80211_ATTR_SURVEY_INFO], 1837 survey_policy)) { 1838 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 1839 "attributes!"); 1840 return NL_SKIP; 1841 } 1842 1843 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1844 return NL_SKIP; 1845 1846 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1847 sig_change->frequency) 1848 return NL_SKIP; 1849 1850 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1851 return NL_SKIP; 1852 1853 sig_change->current_noise = 1854 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1855 1856 return NL_SKIP; 1857} 1858 1859 1860static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 1861 struct wpa_signal_info *sig_change) 1862{ 1863 struct nl_msg *msg; 1864 1865 sig_change->current_noise = 9999; 1866 sig_change->frequency = drv->assoc_freq; 1867 1868 msg = nlmsg_alloc(); 1869 if (!msg) 1870 return -ENOMEM; 1871 1872 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1873 1874 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1875 1876 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 1877 nla_put_failure: 1878 nlmsg_free(msg); 1879 return -ENOBUFS; 1880} 1881 1882 1883static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 1884{ 1885 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1886 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1887 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1888 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1889 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1890 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1891 }; 1892 struct wpa_scan_results *scan_results = arg; 1893 struct wpa_scan_res *scan_res; 1894 size_t i; 1895 1896 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1897 genlmsg_attrlen(gnlh, 0), NULL); 1898 1899 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1900 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 1901 return NL_SKIP; 1902 } 1903 1904 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1905 tb[NL80211_ATTR_SURVEY_INFO], 1906 survey_policy)) { 1907 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 1908 "attributes"); 1909 return NL_SKIP; 1910 } 1911 1912 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1913 return NL_SKIP; 1914 1915 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1916 return NL_SKIP; 1917 1918 for (i = 0; i < scan_results->num; ++i) { 1919 scan_res = scan_results->res[i]; 1920 if (!scan_res) 1921 continue; 1922 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1923 scan_res->freq) 1924 continue; 1925 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 1926 continue; 1927 scan_res->noise = (s8) 1928 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1929 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 1930 } 1931 1932 return NL_SKIP; 1933} 1934 1935 1936static int nl80211_get_noise_for_scan_results( 1937 struct wpa_driver_nl80211_data *drv, 1938 struct wpa_scan_results *scan_res) 1939{ 1940 struct nl_msg *msg; 1941 1942 msg = nlmsg_alloc(); 1943 if (!msg) 1944 return -ENOMEM; 1945 1946 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1947 1948 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1949 1950 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 1951 scan_res); 1952 nla_put_failure: 1953 nlmsg_free(msg); 1954 return -ENOBUFS; 1955} 1956 1957 1958static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 1959 struct nlattr *tb[]) 1960{ 1961 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 1962 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 1963 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 1964 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 1965 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 1966 }; 1967 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 1968 enum nl80211_cqm_rssi_threshold_event event; 1969 union wpa_event_data ed; 1970 struct wpa_signal_info sig; 1971 int res; 1972 1973 if (tb[NL80211_ATTR_CQM] == NULL || 1974 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 1975 cqm_policy)) { 1976 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 1977 return; 1978 } 1979 1980 os_memset(&ed, 0, sizeof(ed)); 1981 1982 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 1983 if (!tb[NL80211_ATTR_MAC]) 1984 return; 1985 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 1986 ETH_ALEN); 1987 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 1988 return; 1989 } 1990 1991 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 1992 return; 1993 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 1994 1995 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 1996 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 1997 "event: RSSI high"); 1998 ed.signal_change.above_threshold = 1; 1999 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2000 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2001 "event: RSSI low"); 2002 ed.signal_change.above_threshold = 0; 2003 } else 2004 return; 2005 2006 res = nl80211_get_link_signal(drv, &sig); 2007 if (res == 0) { 2008 ed.signal_change.current_signal = sig.current_signal; 2009 ed.signal_change.current_txrate = sig.current_txrate; 2010 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2011 sig.current_signal, sig.current_txrate); 2012 } 2013 2014 res = nl80211_get_link_noise(drv, &sig); 2015 if (res == 0) { 2016 ed.signal_change.current_noise = sig.current_noise; 2017 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2018 sig.current_noise); 2019 } 2020 2021 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2022} 2023 2024 2025static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2026 struct nlattr **tb) 2027{ 2028 u8 *addr; 2029 union wpa_event_data data; 2030 2031 if (tb[NL80211_ATTR_MAC] == NULL) 2032 return; 2033 addr = nla_data(tb[NL80211_ATTR_MAC]); 2034 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2035 2036 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2037 u8 *ies = NULL; 2038 size_t ies_len = 0; 2039 if (tb[NL80211_ATTR_IE]) { 2040 ies = nla_data(tb[NL80211_ATTR_IE]); 2041 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2042 } 2043 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2044 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2045 return; 2046 } 2047 2048 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2049 return; 2050 2051 os_memset(&data, 0, sizeof(data)); 2052 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2053 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2054} 2055 2056 2057static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2058 struct nlattr **tb) 2059{ 2060 u8 *addr; 2061 union wpa_event_data data; 2062 2063 if (tb[NL80211_ATTR_MAC] == NULL) 2064 return; 2065 addr = nla_data(tb[NL80211_ATTR_MAC]); 2066 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2067 MAC2STR(addr)); 2068 2069 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2070 drv_event_disassoc(drv->ctx, addr); 2071 return; 2072 } 2073 2074 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2075 return; 2076 2077 os_memset(&data, 0, sizeof(data)); 2078 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2079 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2080} 2081 2082 2083static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2084 struct nlattr **tb) 2085{ 2086 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2087 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2088 [NL80211_REKEY_DATA_KEK] = { 2089 .minlen = NL80211_KEK_LEN, 2090 .maxlen = NL80211_KEK_LEN, 2091 }, 2092 [NL80211_REKEY_DATA_KCK] = { 2093 .minlen = NL80211_KCK_LEN, 2094 .maxlen = NL80211_KCK_LEN, 2095 }, 2096 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2097 .minlen = NL80211_REPLAY_CTR_LEN, 2098 .maxlen = NL80211_REPLAY_CTR_LEN, 2099 }, 2100 }; 2101 union wpa_event_data data; 2102 2103 if (!tb[NL80211_ATTR_MAC]) 2104 return; 2105 if (!tb[NL80211_ATTR_REKEY_DATA]) 2106 return; 2107 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2108 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2109 return; 2110 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2111 return; 2112 2113 os_memset(&data, 0, sizeof(data)); 2114 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2115 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2116 MAC2STR(data.driver_gtk_rekey.bssid)); 2117 data.driver_gtk_rekey.replay_ctr = 2118 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2119 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2120 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2121 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2122} 2123 2124 2125static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2126 struct nlattr **tb) 2127{ 2128 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2129 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2130 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2131 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2132 .minlen = ETH_ALEN, 2133 .maxlen = ETH_ALEN, 2134 }, 2135 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2136 }; 2137 union wpa_event_data data; 2138 2139 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2140 2141 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2142 return; 2143 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2144 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2145 return; 2146 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2147 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2148 return; 2149 2150 os_memset(&data, 0, sizeof(data)); 2151 os_memcpy(data.pmkid_candidate.bssid, 2152 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2153 data.pmkid_candidate.index = 2154 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2155 data.pmkid_candidate.preauth = 2156 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2157 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2158} 2159 2160 2161static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2162 struct nlattr **tb) 2163{ 2164 union wpa_event_data data; 2165 2166 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2167 2168 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2169 return; 2170 2171 os_memset(&data, 0, sizeof(data)); 2172 os_memcpy(data.client_poll.addr, 2173 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2174 2175 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2176} 2177 2178 2179static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2180 struct nlattr **tb) 2181{ 2182 union wpa_event_data data; 2183 2184 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2185 2186 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2187 return; 2188 2189 os_memset(&data, 0, sizeof(data)); 2190 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2191 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2192 case NL80211_TDLS_SETUP: 2193 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2194 MACSTR, MAC2STR(data.tdls.peer)); 2195 data.tdls.oper = TDLS_REQUEST_SETUP; 2196 break; 2197 case NL80211_TDLS_TEARDOWN: 2198 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2199 MACSTR, MAC2STR(data.tdls.peer)); 2200 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2201 break; 2202 default: 2203 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2204 "event"); 2205 return; 2206 } 2207 if (tb[NL80211_ATTR_REASON_CODE]) { 2208 data.tdls.reason_code = 2209 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2210 } 2211 2212 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2213} 2214 2215 2216static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2217 struct nlattr **tb) 2218{ 2219 union wpa_event_data data; 2220 u32 reason; 2221 2222 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2223 2224 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2225 return; 2226 2227 os_memset(&data, 0, sizeof(data)); 2228 os_memcpy(data.connect_failed_reason.addr, 2229 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2230 2231 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2232 switch (reason) { 2233 case NL80211_CONN_FAIL_MAX_CLIENTS: 2234 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2235 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2236 break; 2237 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2238 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2239 " tried to connect", 2240 MAC2STR(data.connect_failed_reason.addr)); 2241 data.connect_failed_reason.code = BLOCKED_CLIENT; 2242 break; 2243 default: 2244 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2245 "%u", reason); 2246 return; 2247 } 2248 2249 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2250} 2251 2252 2253static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2254 struct nlattr **tb) 2255{ 2256 union wpa_event_data data; 2257 enum nl80211_radar_event event_type; 2258 2259 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2260 return; 2261 2262 os_memset(&data, 0, sizeof(data)); 2263 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2264 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2265 2266 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2267 data.dfs_event.freq); 2268 2269 switch (event_type) { 2270 case NL80211_RADAR_DETECTED: 2271 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2272 break; 2273 case NL80211_RADAR_CAC_FINISHED: 2274 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2275 break; 2276 case NL80211_RADAR_CAC_ABORTED: 2277 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2278 break; 2279 case NL80211_RADAR_NOP_FINISHED: 2280 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2281 break; 2282 default: 2283 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2284 "received", event_type); 2285 break; 2286 } 2287} 2288 2289 2290static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2291 int wds) 2292{ 2293 struct wpa_driver_nl80211_data *drv = bss->drv; 2294 union wpa_event_data event; 2295 2296 if (!tb[NL80211_ATTR_MAC]) 2297 return; 2298 2299 os_memset(&event, 0, sizeof(event)); 2300 event.rx_from_unknown.bssid = bss->addr; 2301 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2302 event.rx_from_unknown.wds = wds; 2303 2304 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2305} 2306 2307 2308static void do_process_drv_event(struct i802_bss *bss, int cmd, 2309 struct nlattr **tb) 2310{ 2311 struct wpa_driver_nl80211_data *drv = bss->drv; 2312 2313 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2314 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2315 cmd == NL80211_CMD_SCAN_ABORTED)) { 2316 wpa_driver_nl80211_set_mode(&drv->first_bss, 2317 drv->ap_scan_as_station); 2318 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2319 } 2320 2321 switch (cmd) { 2322 case NL80211_CMD_TRIGGER_SCAN: 2323 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2324 break; 2325 case NL80211_CMD_START_SCHED_SCAN: 2326 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2327 break; 2328 case NL80211_CMD_SCHED_SCAN_STOPPED: 2329 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2330 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2331 break; 2332 case NL80211_CMD_NEW_SCAN_RESULTS: 2333 wpa_dbg(drv->ctx, MSG_DEBUG, 2334 "nl80211: New scan results available"); 2335 drv->scan_complete_events = 1; 2336 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2337 drv->ctx); 2338 send_scan_event(drv, 0, tb); 2339 break; 2340 case NL80211_CMD_SCHED_SCAN_RESULTS: 2341 wpa_dbg(drv->ctx, MSG_DEBUG, 2342 "nl80211: New sched scan results available"); 2343 send_scan_event(drv, 0, tb); 2344 break; 2345 case NL80211_CMD_SCAN_ABORTED: 2346 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2347 /* 2348 * Need to indicate that scan results are available in order 2349 * not to make wpa_supplicant stop its scanning. 2350 */ 2351 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2352 drv->ctx); 2353 send_scan_event(drv, 1, tb); 2354 break; 2355 case NL80211_CMD_AUTHENTICATE: 2356 case NL80211_CMD_ASSOCIATE: 2357 case NL80211_CMD_DEAUTHENTICATE: 2358 case NL80211_CMD_DISASSOCIATE: 2359 case NL80211_CMD_FRAME_TX_STATUS: 2360 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2361 case NL80211_CMD_UNPROT_DISASSOCIATE: 2362 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2363 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2364 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2365 tb[NL80211_ATTR_COOKIE], 2366 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2367 break; 2368 case NL80211_CMD_CONNECT: 2369 case NL80211_CMD_ROAM: 2370 mlme_event_connect(drv, cmd, 2371 tb[NL80211_ATTR_STATUS_CODE], 2372 tb[NL80211_ATTR_MAC], 2373 tb[NL80211_ATTR_REQ_IE], 2374 tb[NL80211_ATTR_RESP_IE]); 2375 break; 2376 case NL80211_CMD_CH_SWITCH_NOTIFY: 2377 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2378 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2379 break; 2380 case NL80211_CMD_DISCONNECT: 2381 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2382 tb[NL80211_ATTR_MAC], 2383 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2384 break; 2385 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2386 mlme_event_michael_mic_failure(bss, tb); 2387 break; 2388 case NL80211_CMD_JOIN_IBSS: 2389 mlme_event_join_ibss(drv, tb); 2390 break; 2391 case NL80211_CMD_REMAIN_ON_CHANNEL: 2392 mlme_event_remain_on_channel(drv, 0, tb); 2393 break; 2394 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2395 mlme_event_remain_on_channel(drv, 1, tb); 2396 break; 2397 case NL80211_CMD_NOTIFY_CQM: 2398 nl80211_cqm_event(drv, tb); 2399 break; 2400 case NL80211_CMD_REG_CHANGE: 2401 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2402 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2403 NULL); 2404 break; 2405 case NL80211_CMD_REG_BEACON_HINT: 2406 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2407 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2408 NULL); 2409 break; 2410 case NL80211_CMD_NEW_STATION: 2411 nl80211_new_station_event(drv, tb); 2412 break; 2413 case NL80211_CMD_DEL_STATION: 2414 nl80211_del_station_event(drv, tb); 2415 break; 2416 case NL80211_CMD_SET_REKEY_OFFLOAD: 2417 nl80211_rekey_offload_event(drv, tb); 2418 break; 2419 case NL80211_CMD_PMKSA_CANDIDATE: 2420 nl80211_pmksa_candidate_event(drv, tb); 2421 break; 2422 case NL80211_CMD_PROBE_CLIENT: 2423 nl80211_client_probe_event(drv, tb); 2424 break; 2425 case NL80211_CMD_TDLS_OPER: 2426 nl80211_tdls_oper_event(drv, tb); 2427 break; 2428 case NL80211_CMD_CONN_FAILED: 2429 nl80211_connect_failed_event(drv, tb); 2430 break; 2431 case NL80211_CMD_FT_EVENT: 2432 mlme_event_ft_event(drv, tb); 2433 break; 2434 case NL80211_CMD_RADAR_DETECT: 2435 nl80211_radar_event(drv, tb); 2436 break; 2437 default: 2438 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2439 "(cmd=%d)", cmd); 2440 break; 2441 } 2442} 2443 2444 2445static int process_drv_event(struct nl_msg *msg, void *arg) 2446{ 2447 struct wpa_driver_nl80211_data *drv = arg; 2448 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2449 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2450 struct i802_bss *bss; 2451 int ifidx = -1; 2452 2453 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2454 genlmsg_attrlen(gnlh, 0), NULL); 2455 2456 if (tb[NL80211_ATTR_IFINDEX]) 2457 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2458 2459 for (bss = &drv->first_bss; bss; bss = bss->next) { 2460 if (ifidx == -1 || ifidx == bss->ifindex) { 2461 do_process_drv_event(bss, gnlh->cmd, tb); 2462 return NL_SKIP; 2463 } 2464 } 2465 2466 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign " 2467 "interface (ifindex %d)", gnlh->cmd, ifidx); 2468 2469 return NL_SKIP; 2470} 2471 2472 2473static int process_global_event(struct nl_msg *msg, void *arg) 2474{ 2475 struct nl80211_global *global = arg; 2476 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2477 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2478 struct wpa_driver_nl80211_data *drv, *tmp; 2479 int ifidx = -1; 2480 struct i802_bss *bss; 2481 2482 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2483 genlmsg_attrlen(gnlh, 0), NULL); 2484 2485 if (tb[NL80211_ATTR_IFINDEX]) 2486 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2487 2488 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2489 struct wpa_driver_nl80211_data, list) { 2490 for (bss = &drv->first_bss; bss; bss = bss->next) { 2491 if (ifidx == -1 || ifidx == bss->ifindex) { 2492 do_process_drv_event(bss, gnlh->cmd, tb); 2493 return NL_SKIP; 2494 } 2495 } 2496 } 2497 2498 return NL_SKIP; 2499} 2500 2501 2502static int process_bss_event(struct nl_msg *msg, void *arg) 2503{ 2504 struct i802_bss *bss = arg; 2505 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2506 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2507 2508 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2509 genlmsg_attrlen(gnlh, 0), NULL); 2510 2511 switch (gnlh->cmd) { 2512 case NL80211_CMD_FRAME: 2513 case NL80211_CMD_FRAME_TX_STATUS: 2514 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2515 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2516 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2517 tb[NL80211_ATTR_COOKIE], 2518 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2519 break; 2520 case NL80211_CMD_UNEXPECTED_FRAME: 2521 nl80211_spurious_frame(bss, tb, 0); 2522 break; 2523 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2524 nl80211_spurious_frame(bss, tb, 1); 2525 break; 2526 default: 2527 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2528 "(cmd=%d)", gnlh->cmd); 2529 break; 2530 } 2531 2532 return NL_SKIP; 2533} 2534 2535 2536static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2537 void *handle) 2538{ 2539 struct nl_cb *cb = eloop_ctx; 2540 2541 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2542 2543 nl_recvmsgs(handle, cb); 2544} 2545 2546 2547/** 2548 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2549 * @priv: driver_nl80211 private data 2550 * @alpha2_arg: country to which to switch to 2551 * Returns: 0 on success, -1 on failure 2552 * 2553 * This asks nl80211 to set the regulatory domain for given 2554 * country ISO / IEC alpha2. 2555 */ 2556static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2557{ 2558 struct i802_bss *bss = priv; 2559 struct wpa_driver_nl80211_data *drv = bss->drv; 2560 char alpha2[3]; 2561 struct nl_msg *msg; 2562 2563 msg = nlmsg_alloc(); 2564 if (!msg) 2565 return -ENOMEM; 2566 2567 alpha2[0] = alpha2_arg[0]; 2568 alpha2[1] = alpha2_arg[1]; 2569 alpha2[2] = '\0'; 2570 2571 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2572 2573 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2574 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2575 return -EINVAL; 2576 return 0; 2577nla_put_failure: 2578 nlmsg_free(msg); 2579 return -EINVAL; 2580} 2581 2582 2583static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2584{ 2585 u32 *feat = arg; 2586 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2587 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2588 2589 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2590 genlmsg_attrlen(gnlh, 0), NULL); 2591 2592 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2593 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2594 2595 return NL_SKIP; 2596} 2597 2598 2599static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2600{ 2601 u32 feat = 0; 2602 struct nl_msg *msg; 2603 2604 msg = nlmsg_alloc(); 2605 if (!msg) 2606 goto nla_put_failure; 2607 2608 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2609 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2610 return feat; 2611 2612 msg = NULL; 2613nla_put_failure: 2614 nlmsg_free(msg); 2615 return 0; 2616} 2617 2618 2619struct wiphy_info_data { 2620 struct wpa_driver_nl80211_data *drv; 2621 struct wpa_driver_capa *capa; 2622 2623 unsigned int error:1; 2624 unsigned int device_ap_sme:1; 2625 unsigned int poll_command_supported:1; 2626 unsigned int data_tx_status:1; 2627 unsigned int monitor_supported:1; 2628 unsigned int auth_supported:1; 2629 unsigned int connect_supported:1; 2630 unsigned int p2p_go_supported:1; 2631 unsigned int p2p_client_supported:1; 2632 unsigned int p2p_concurrent:1; 2633 unsigned int p2p_multichan_concurrent:1; 2634}; 2635 2636 2637static unsigned int probe_resp_offload_support(int supp_protocols) 2638{ 2639 unsigned int prot = 0; 2640 2641 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2642 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2643 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2644 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2645 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2646 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2647 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2648 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2649 2650 return prot; 2651} 2652 2653 2654static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2655 struct nlattr *tb) 2656{ 2657 struct nlattr *nl_mode; 2658 int i; 2659 2660 if (tb == NULL) 2661 return; 2662 2663 nla_for_each_nested(nl_mode, tb, i) { 2664 switch (nla_type(nl_mode)) { 2665 case NL80211_IFTYPE_AP: 2666 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2667 break; 2668 case NL80211_IFTYPE_ADHOC: 2669 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2670 break; 2671 case NL80211_IFTYPE_P2P_GO: 2672 info->p2p_go_supported = 1; 2673 break; 2674 case NL80211_IFTYPE_P2P_CLIENT: 2675 info->p2p_client_supported = 1; 2676 break; 2677 case NL80211_IFTYPE_MONITOR: 2678 info->monitor_supported = 1; 2679 break; 2680 } 2681 } 2682} 2683 2684 2685static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2686 struct nlattr *nl_combi) 2687{ 2688 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2689 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2690 struct nlattr *nl_limit, *nl_mode; 2691 int err, rem_limit, rem_mode; 2692 int combination_has_p2p = 0, combination_has_mgd = 0; 2693 static struct nla_policy 2694 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2695 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2696 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2697 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2698 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2699 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 2700 }, 2701 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2702 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2703 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2704 }; 2705 2706 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2707 nl_combi, iface_combination_policy); 2708 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2709 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2710 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2711 return 0; /* broken combination */ 2712 2713 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 2714 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 2715 2716 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 2717 rem_limit) { 2718 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 2719 nl_limit, iface_limit_policy); 2720 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 2721 return 0; /* broken combination */ 2722 2723 nla_for_each_nested(nl_mode, 2724 tb_limit[NL80211_IFACE_LIMIT_TYPES], 2725 rem_mode) { 2726 int ift = nla_type(nl_mode); 2727 if (ift == NL80211_IFTYPE_P2P_GO || 2728 ift == NL80211_IFTYPE_P2P_CLIENT) 2729 combination_has_p2p = 1; 2730 if (ift == NL80211_IFTYPE_STATION) 2731 combination_has_mgd = 1; 2732 } 2733 if (combination_has_p2p && combination_has_mgd) 2734 break; 2735 } 2736 2737 if (combination_has_p2p && combination_has_mgd) { 2738 info->p2p_concurrent = 1; 2739 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1) 2740 info->p2p_multichan_concurrent = 1; 2741 return 1; 2742 } 2743 2744 return 0; 2745} 2746 2747 2748static void wiphy_info_iface_comb(struct wiphy_info_data *info, 2749 struct nlattr *tb) 2750{ 2751 struct nlattr *nl_combi; 2752 int rem_combi; 2753 2754 if (tb == NULL) 2755 return; 2756 2757 nla_for_each_nested(nl_combi, tb, rem_combi) { 2758 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 2759 break; 2760 } 2761} 2762 2763 2764static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 2765 struct nlattr *tb) 2766{ 2767 struct nlattr *nl_cmd; 2768 int i; 2769 2770 if (tb == NULL) 2771 return; 2772 2773 nla_for_each_nested(nl_cmd, tb, i) { 2774 switch (nla_get_u32(nl_cmd)) { 2775 case NL80211_CMD_AUTHENTICATE: 2776 info->auth_supported = 1; 2777 break; 2778 case NL80211_CMD_CONNECT: 2779 info->connect_supported = 1; 2780 break; 2781 case NL80211_CMD_START_SCHED_SCAN: 2782 info->capa->sched_scan_supported = 1; 2783 break; 2784 case NL80211_CMD_PROBE_CLIENT: 2785 info->poll_command_supported = 1; 2786 break; 2787 } 2788 } 2789} 2790 2791 2792static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 2793 struct nlattr *tb) 2794{ 2795 if (tb) 2796 capa->max_remain_on_chan = nla_get_u32(tb); 2797} 2798 2799 2800static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 2801 struct nlattr *ext_setup) 2802{ 2803 if (tdls == NULL) 2804 return; 2805 2806 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 2807 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 2808 2809 if (ext_setup) { 2810 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 2811 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 2812 } 2813} 2814 2815 2816static void wiphy_info_feature_flags(struct wiphy_info_data *info, 2817 struct nlattr *tb) 2818{ 2819 u32 flags; 2820 struct wpa_driver_capa *capa = info->capa; 2821 2822 if (tb == NULL) 2823 return; 2824 2825 flags = nla_get_u32(tb); 2826 2827 if (flags & NL80211_FEATURE_SK_TX_STATUS) 2828 info->data_tx_status = 1; 2829 2830 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 2831 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 2832 2833 if (flags & NL80211_FEATURE_SAE) 2834 capa->flags |= WPA_DRIVER_FLAGS_SAE; 2835 2836 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 2837 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 2838} 2839 2840 2841static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 2842 struct nlattr *tb) 2843{ 2844 u32 protocols; 2845 2846 if (tb == NULL) 2847 return; 2848 2849 protocols = nla_get_u32(tb); 2850 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 2851 "mode"); 2852 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 2853 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 2854} 2855 2856 2857static int wiphy_info_handler(struct nl_msg *msg, void *arg) 2858{ 2859 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2860 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2861 struct wiphy_info_data *info = arg; 2862 struct wpa_driver_capa *capa = info->capa; 2863 struct wpa_driver_nl80211_data *drv = info->drv; 2864 2865 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2866 genlmsg_attrlen(gnlh, 0), NULL); 2867 2868 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 2869 capa->max_scan_ssids = 2870 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 2871 2872 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 2873 capa->max_sched_scan_ssids = 2874 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 2875 2876 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 2877 capa->max_match_sets = 2878 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 2879 2880 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 2881 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 2882 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 2883 2884 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 2885 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 2886 "off-channel TX"); 2887 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 2888 } 2889 2890 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 2891 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 2892 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 2893 } 2894 2895 wiphy_info_max_roc(capa, 2896 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 2897 2898 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 2899 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 2900 2901 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 2902 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 2903 2904 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 2905 info->device_ap_sme = 1; 2906 2907 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 2908 wiphy_info_probe_resp_offload(capa, 2909 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 2910 2911 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 2912 drv->extended_capa == NULL) { 2913 drv->extended_capa = 2914 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2915 if (drv->extended_capa) { 2916 os_memcpy(drv->extended_capa, 2917 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2918 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2919 drv->extended_capa_len = 2920 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 2921 } 2922 drv->extended_capa_mask = 2923 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2924 if (drv->extended_capa_mask) { 2925 os_memcpy(drv->extended_capa_mask, 2926 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2927 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2928 } else { 2929 os_free(drv->extended_capa); 2930 drv->extended_capa = NULL; 2931 drv->extended_capa_len = 0; 2932 } 2933 } 2934 2935 return NL_SKIP; 2936} 2937 2938 2939static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 2940 struct wiphy_info_data *info) 2941{ 2942 u32 feat; 2943 struct nl_msg *msg; 2944 2945 os_memset(info, 0, sizeof(*info)); 2946 info->capa = &drv->capa; 2947 info->drv = drv; 2948 2949 msg = nlmsg_alloc(); 2950 if (!msg) 2951 return -1; 2952 2953 feat = get_nl80211_protocol_features(drv); 2954 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 2955 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 2956 else 2957 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 2958 2959 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 2960 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); 2961 2962 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 2963 return -1; 2964 2965 if (info->auth_supported) 2966 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 2967 else if (!info->connect_supported) { 2968 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 2969 "authentication/association or connect commands"); 2970 info->error = 1; 2971 } 2972 2973 if (info->p2p_go_supported && info->p2p_client_supported) 2974 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 2975 if (info->p2p_concurrent) { 2976 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 2977 "interface (driver advertised support)"); 2978 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 2979 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 2980 } 2981 if (info->p2p_multichan_concurrent) { 2982 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 2983 "concurrent (driver advertised support)"); 2984 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 2985 } 2986 2987 /* default to 5000 since early versions of mac80211 don't set it */ 2988 if (!drv->capa.max_remain_on_chan) 2989 drv->capa.max_remain_on_chan = 5000; 2990 2991 return 0; 2992nla_put_failure: 2993 nlmsg_free(msg); 2994 return -1; 2995} 2996 2997 2998static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 2999{ 3000 struct wiphy_info_data info; 3001 if (wpa_driver_nl80211_get_info(drv, &info)) 3002 return -1; 3003 3004 if (info.error) 3005 return -1; 3006 3007 drv->has_capability = 1; 3008 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3009 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3010 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3011 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3012 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3013 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3014 WPA_DRIVER_CAPA_ENC_WEP104 | 3015 WPA_DRIVER_CAPA_ENC_TKIP | 3016 WPA_DRIVER_CAPA_ENC_CCMP; 3017 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3018 WPA_DRIVER_AUTH_SHARED | 3019 WPA_DRIVER_AUTH_LEAP; 3020 3021 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3022 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3023 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3024 3025 if (!info.device_ap_sme) { 3026 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3027 3028 /* 3029 * No AP SME is currently assumed to also indicate no AP MLME 3030 * in the driver/firmware. 3031 */ 3032 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3033 } 3034 3035 drv->device_ap_sme = info.device_ap_sme; 3036 drv->poll_command_supported = info.poll_command_supported; 3037 drv->data_tx_status = info.data_tx_status; 3038 3039#ifdef ANDROID_P2P 3040 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3041 /* Driver is new enough to support monitorless mode*/ 3042 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3043 "enough to support monitor-less mode"); 3044 drv->use_monitor = 0; 3045 } 3046#else 3047 /* 3048 * If poll command and tx status are supported, mac80211 is new enough 3049 * to have everything we need to not need monitor interfaces. 3050 */ 3051 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3052#endif 3053 3054 if (drv->device_ap_sme && drv->use_monitor) { 3055 /* 3056 * Non-mac80211 drivers may not support monitor interface. 3057 * Make sure we do not get stuck with incorrect capability here 3058 * by explicitly testing this. 3059 */ 3060 if (!info.monitor_supported) { 3061 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3062 "with device_ap_sme since no monitor mode " 3063 "support detected"); 3064 drv->use_monitor = 0; 3065 } 3066 } 3067 3068 /* 3069 * If we aren't going to use monitor interfaces, but the 3070 * driver doesn't support data TX status, we won't get TX 3071 * status for EAPOL frames. 3072 */ 3073 if (!drv->use_monitor && !info.data_tx_status) 3074 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3075 3076 return 0; 3077} 3078 3079 3080#ifdef ANDROID 3081static int android_genl_ctrl_resolve(struct nl_handle *handle, 3082 const char *name) 3083{ 3084 /* 3085 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3086 * need to work around that. 3087 */ 3088 struct nl_cache *cache = NULL; 3089 struct genl_family *nl80211 = NULL; 3090 int id = -1; 3091 3092 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3093 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3094 "netlink cache"); 3095 goto fail; 3096 } 3097 3098 nl80211 = genl_ctrl_search_by_name(cache, name); 3099 if (nl80211 == NULL) 3100 goto fail; 3101 3102 id = genl_family_get_id(nl80211); 3103 3104fail: 3105 if (nl80211) 3106 genl_family_put(nl80211); 3107 if (cache) 3108 nl_cache_free(cache); 3109 3110 return id; 3111} 3112#define genl_ctrl_resolve android_genl_ctrl_resolve 3113#endif /* ANDROID */ 3114 3115 3116static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3117{ 3118 int ret; 3119 3120 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3121 if (global->nl_cb == NULL) { 3122 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3123 "callbacks"); 3124 return -1; 3125 } 3126 3127 global->nl = nl_create_handle(global->nl_cb, "nl"); 3128 if (global->nl == NULL) 3129 goto err; 3130 3131 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3132 if (global->nl80211_id < 0) { 3133 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3134 "found"); 3135 goto err; 3136 } 3137 3138 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3139 if (global->nl_event == NULL) 3140 goto err; 3141 3142 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3143 if (ret >= 0) 3144 ret = nl_socket_add_membership(global->nl_event, ret); 3145 if (ret < 0) { 3146 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3147 "membership for scan events: %d (%s)", 3148 ret, strerror(-ret)); 3149 goto err; 3150 } 3151 3152 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3153 if (ret >= 0) 3154 ret = nl_socket_add_membership(global->nl_event, ret); 3155 if (ret < 0) { 3156 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3157 "membership for mlme events: %d (%s)", 3158 ret, strerror(-ret)); 3159 goto err; 3160 } 3161 3162 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3163 if (ret >= 0) 3164 ret = nl_socket_add_membership(global->nl_event, ret); 3165 if (ret < 0) { 3166 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3167 "membership for regulatory events: %d (%s)", 3168 ret, strerror(-ret)); 3169 /* Continue without regulatory events */ 3170 } 3171 3172 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3173 no_seq_check, NULL); 3174 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3175 process_global_event, global); 3176 3177 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3178 wpa_driver_nl80211_event_receive, 3179 global->nl_cb, global->nl_event); 3180 3181 return 0; 3182 3183err: 3184 nl_destroy_handles(&global->nl_event); 3185 nl_destroy_handles(&global->nl); 3186 nl_cb_put(global->nl_cb); 3187 global->nl_cb = NULL; 3188 return -1; 3189} 3190 3191 3192static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3193{ 3194 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3195 if (!drv->nl_cb) { 3196 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3197 return -1; 3198 } 3199 3200 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3201 no_seq_check, NULL); 3202 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3203 process_drv_event, drv); 3204 3205 return 0; 3206} 3207 3208 3209static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3210{ 3211 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3212 /* 3213 * This may be for any interface; use ifdown event to disable 3214 * interface. 3215 */ 3216} 3217 3218 3219static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3220{ 3221 struct wpa_driver_nl80211_data *drv = ctx; 3222 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3223 if (linux_set_iface_flags(drv->global->ioctl_sock, 3224 drv->first_bss.ifname, 1)) { 3225 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3226 "after rfkill unblock"); 3227 return; 3228 } 3229 /* rtnetlink ifup handler will report interface as enabled */ 3230} 3231 3232 3233static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv) 3234{ 3235 /* Find phy (radio) to which this interface belongs */ 3236 char buf[90], *pos; 3237 int f, rv; 3238 3239 drv->phyname[0] = '\0'; 3240 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name", 3241 drv->first_bss.ifname); 3242 f = open(buf, O_RDONLY); 3243 if (f < 0) { 3244 wpa_printf(MSG_DEBUG, "Could not open file %s: %s", 3245 buf, strerror(errno)); 3246 return; 3247 } 3248 3249 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1); 3250 close(f); 3251 if (rv < 0) { 3252 wpa_printf(MSG_DEBUG, "Could not read file %s: %s", 3253 buf, strerror(errno)); 3254 return; 3255 } 3256 3257 drv->phyname[rv] = '\0'; 3258 pos = os_strchr(drv->phyname, '\n'); 3259 if (pos) 3260 *pos = '\0'; 3261 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 3262 drv->first_bss.ifname, drv->phyname); 3263} 3264 3265 3266static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3267 void *eloop_ctx, 3268 void *handle) 3269{ 3270 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3271 u8 data[2048]; 3272 struct msghdr msg; 3273 struct iovec entry; 3274 u8 control[512]; 3275 struct cmsghdr *cmsg; 3276 int res, found_ee = 0, found_wifi = 0, acked = 0; 3277 union wpa_event_data event; 3278 3279 memset(&msg, 0, sizeof(msg)); 3280 msg.msg_iov = &entry; 3281 msg.msg_iovlen = 1; 3282 entry.iov_base = data; 3283 entry.iov_len = sizeof(data); 3284 msg.msg_control = &control; 3285 msg.msg_controllen = sizeof(control); 3286 3287 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3288 /* if error or not fitting 802.3 header, return */ 3289 if (res < 14) 3290 return; 3291 3292 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3293 { 3294 if (cmsg->cmsg_level == SOL_SOCKET && 3295 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3296 int *ack; 3297 3298 found_wifi = 1; 3299 ack = (void *)CMSG_DATA(cmsg); 3300 acked = *ack; 3301 } 3302 3303 if (cmsg->cmsg_level == SOL_PACKET && 3304 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3305 struct sock_extended_err *err = 3306 (struct sock_extended_err *)CMSG_DATA(cmsg); 3307 3308 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3309 found_ee = 1; 3310 } 3311 } 3312 3313 if (!found_ee || !found_wifi) 3314 return; 3315 3316 memset(&event, 0, sizeof(event)); 3317 event.eapol_tx_status.dst = data; 3318 event.eapol_tx_status.data = data + 14; 3319 event.eapol_tx_status.data_len = res - 14; 3320 event.eapol_tx_status.ack = acked; 3321 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3322} 3323 3324 3325static int nl80211_init_bss(struct i802_bss *bss) 3326{ 3327 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3328 if (!bss->nl_cb) 3329 return -1; 3330 3331 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3332 no_seq_check, NULL); 3333 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3334 process_bss_event, bss); 3335 3336 return 0; 3337} 3338 3339 3340static void nl80211_destroy_bss(struct i802_bss *bss) 3341{ 3342 nl_cb_put(bss->nl_cb); 3343 bss->nl_cb = NULL; 3344} 3345 3346 3347/** 3348 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3349 * @ctx: context to be used when calling wpa_supplicant functions, 3350 * e.g., wpa_supplicant_event() 3351 * @ifname: interface name, e.g., wlan0 3352 * @global_priv: private driver global data from global_init() 3353 * Returns: Pointer to private data, %NULL on failure 3354 */ 3355static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3356 void *global_priv) 3357{ 3358 struct wpa_driver_nl80211_data *drv; 3359 struct rfkill_config *rcfg; 3360 struct i802_bss *bss; 3361 3362 if (global_priv == NULL) 3363 return NULL; 3364 drv = os_zalloc(sizeof(*drv)); 3365 if (drv == NULL) 3366 return NULL; 3367 drv->global = global_priv; 3368 drv->ctx = ctx; 3369 bss = &drv->first_bss; 3370 bss->drv = drv; 3371 bss->ctx = ctx; 3372 3373 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3374 drv->monitor_ifidx = -1; 3375 drv->monitor_sock = -1; 3376 drv->eapol_tx_sock = -1; 3377 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3378 3379 if (wpa_driver_nl80211_init_nl(drv)) { 3380 os_free(drv); 3381 return NULL; 3382 } 3383 3384 if (nl80211_init_bss(bss)) 3385 goto failed; 3386 3387 nl80211_get_phy_name(drv); 3388 3389 rcfg = os_zalloc(sizeof(*rcfg)); 3390 if (rcfg == NULL) 3391 goto failed; 3392 rcfg->ctx = drv; 3393 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3394 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3395 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3396 drv->rfkill = rfkill_init(rcfg); 3397 if (drv->rfkill == NULL) { 3398 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3399 os_free(rcfg); 3400 } 3401 3402 if (wpa_driver_nl80211_finish_drv_init(drv)) 3403 goto failed; 3404 3405 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3406 if (drv->eapol_tx_sock < 0) 3407 goto failed; 3408 3409 if (drv->data_tx_status) { 3410 int enabled = 1; 3411 3412 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3413 &enabled, sizeof(enabled)) < 0) { 3414 wpa_printf(MSG_DEBUG, 3415 "nl80211: wifi status sockopt failed\n"); 3416 drv->data_tx_status = 0; 3417 if (!drv->use_monitor) 3418 drv->capa.flags &= 3419 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3420 } else { 3421 eloop_register_read_sock(drv->eapol_tx_sock, 3422 wpa_driver_nl80211_handle_eapol_tx_status, 3423 drv, NULL); 3424 } 3425 } 3426 3427 if (drv->global) { 3428 dl_list_add(&drv->global->interfaces, &drv->list); 3429 drv->in_interface_list = 1; 3430 } 3431 3432 return bss; 3433 3434failed: 3435 wpa_driver_nl80211_deinit(bss); 3436 return NULL; 3437} 3438 3439 3440static int nl80211_register_frame(struct i802_bss *bss, 3441 struct nl_handle *nl_handle, 3442 u16 type, const u8 *match, size_t match_len) 3443{ 3444 struct wpa_driver_nl80211_data *drv = bss->drv; 3445 struct nl_msg *msg; 3446 int ret = -1; 3447 3448 msg = nlmsg_alloc(); 3449 if (!msg) 3450 return -1; 3451 3452 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3453 type, nl_handle); 3454 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3455 match, match_len); 3456 3457 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3458 3459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3460 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3461 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3462 3463 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3464 msg = NULL; 3465 if (ret) { 3466 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3467 "failed (type=%u): ret=%d (%s)", 3468 type, ret, strerror(-ret)); 3469 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3470 match, match_len); 3471 goto nla_put_failure; 3472 } 3473 ret = 0; 3474nla_put_failure: 3475 nlmsg_free(msg); 3476 return ret; 3477} 3478 3479 3480static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3481{ 3482 struct wpa_driver_nl80211_data *drv = bss->drv; 3483 3484 if (bss->nl_mgmt) { 3485 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3486 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3487 return -1; 3488 } 3489 3490 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3491 if (bss->nl_mgmt == NULL) 3492 return -1; 3493 3494 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3495 wpa_driver_nl80211_event_receive, bss->nl_cb, 3496 bss->nl_mgmt); 3497 3498 return 0; 3499} 3500 3501 3502static int nl80211_register_action_frame(struct i802_bss *bss, 3503 const u8 *match, size_t match_len) 3504{ 3505 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3506 return nl80211_register_frame(bss, bss->nl_mgmt, 3507 type, match, match_len); 3508} 3509 3510 3511static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3512{ 3513 struct wpa_driver_nl80211_data *drv = bss->drv; 3514 3515 if (nl80211_alloc_mgmt_handle(bss)) 3516 return -1; 3517 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3518 "handle %p", bss->nl_mgmt); 3519 3520#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3521 /* GAS Initial Request */ 3522 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3523 return -1; 3524 /* GAS Initial Response */ 3525 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3526 return -1; 3527 /* GAS Comeback Request */ 3528 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3529 return -1; 3530 /* GAS Comeback Response */ 3531 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3532 return -1; 3533#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3534#ifdef CONFIG_P2P 3535 /* P2P Public Action */ 3536 if (nl80211_register_action_frame(bss, 3537 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3538 6) < 0) 3539 return -1; 3540 /* P2P Action */ 3541 if (nl80211_register_action_frame(bss, 3542 (u8 *) "\x7f\x50\x6f\x9a\x09", 3543 5) < 0) 3544 return -1; 3545#endif /* CONFIG_P2P */ 3546#ifdef CONFIG_IEEE80211W 3547 /* SA Query Response */ 3548 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3549 return -1; 3550#endif /* CONFIG_IEEE80211W */ 3551#ifdef CONFIG_TDLS 3552 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3553 /* TDLS Discovery Response */ 3554 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3555 0) 3556 return -1; 3557 } 3558#endif /* CONFIG_TDLS */ 3559 3560 /* FT Action frames */ 3561 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3562 return -1; 3563 else 3564 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3565 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3566 3567 /* WNM - BSS Transition Management Request */ 3568 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3569 return -1; 3570 /* WNM-Sleep Mode Response */ 3571 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3572 return -1; 3573 3574 return 0; 3575} 3576 3577 3578static int nl80211_register_spurious_class3(struct i802_bss *bss) 3579{ 3580 struct wpa_driver_nl80211_data *drv = bss->drv; 3581 struct nl_msg *msg; 3582 int ret = -1; 3583 3584 msg = nlmsg_alloc(); 3585 if (!msg) 3586 return -1; 3587 3588 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3589 3590 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3591 3592 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3593 msg = NULL; 3594 if (ret) { 3595 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3596 "failed: ret=%d (%s)", 3597 ret, strerror(-ret)); 3598 goto nla_put_failure; 3599 } 3600 ret = 0; 3601nla_put_failure: 3602 nlmsg_free(msg); 3603 return ret; 3604} 3605 3606 3607static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3608{ 3609 static const int stypes[] = { 3610 WLAN_FC_STYPE_AUTH, 3611 WLAN_FC_STYPE_ASSOC_REQ, 3612 WLAN_FC_STYPE_REASSOC_REQ, 3613 WLAN_FC_STYPE_DISASSOC, 3614 WLAN_FC_STYPE_DEAUTH, 3615 WLAN_FC_STYPE_ACTION, 3616 WLAN_FC_STYPE_PROBE_REQ, 3617/* Beacon doesn't work as mac80211 doesn't currently allow 3618 * it, but it wouldn't really be the right thing anyway as 3619 * it isn't per interface ... maybe just dump the scan 3620 * results periodically for OLBC? 3621 */ 3622// WLAN_FC_STYPE_BEACON, 3623 }; 3624 unsigned int i; 3625 3626 if (nl80211_alloc_mgmt_handle(bss)) 3627 return -1; 3628 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3629 "handle %p", bss->nl_mgmt); 3630 3631 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3632 if (nl80211_register_frame(bss, bss->nl_mgmt, 3633 (WLAN_FC_TYPE_MGMT << 2) | 3634 (stypes[i] << 4), 3635 NULL, 0) < 0) { 3636 goto out_err; 3637 } 3638 } 3639 3640 if (nl80211_register_spurious_class3(bss)) 3641 goto out_err; 3642 3643 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3644 goto out_err; 3645 3646 return 0; 3647 3648out_err: 3649 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3650 nl_destroy_handles(&bss->nl_mgmt); 3651 return -1; 3652} 3653 3654 3655static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3656{ 3657 if (nl80211_alloc_mgmt_handle(bss)) 3658 return -1; 3659 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3660 "handle %p (device SME)", bss->nl_mgmt); 3661 3662 if (nl80211_register_frame(bss, bss->nl_mgmt, 3663 (WLAN_FC_TYPE_MGMT << 2) | 3664 (WLAN_FC_STYPE_ACTION << 4), 3665 NULL, 0) < 0) 3666 goto out_err; 3667 3668 return 0; 3669 3670out_err: 3671 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3672 nl_destroy_handles(&bss->nl_mgmt); 3673 return -1; 3674} 3675 3676 3677static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3678{ 3679 if (bss->nl_mgmt == NULL) 3680 return; 3681 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3682 "(%s)", bss->nl_mgmt, reason); 3683 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3684 nl_destroy_handles(&bss->nl_mgmt); 3685 3686 nl80211_put_wiphy_data_ap(bss); 3687} 3688 3689 3690static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3691{ 3692 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3693} 3694 3695 3696static int 3697wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 3698{ 3699 struct i802_bss *bss = &drv->first_bss; 3700 int send_rfkill_event = 0; 3701 3702 drv->ifindex = if_nametoindex(bss->ifname); 3703 drv->first_bss.ifindex = drv->ifindex; 3704 3705#ifndef HOSTAPD 3706 /* 3707 * Make sure the interface starts up in station mode unless this is a 3708 * dynamically added interface (e.g., P2P) that was already configured 3709 * with proper iftype. 3710 */ 3711 if (drv->ifindex != drv->global->if_add_ifindex && 3712 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) { 3713 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to " 3714 "use managed mode"); 3715 return -1; 3716 } 3717 3718 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 3719 if (rfkill_is_blocked(drv->rfkill)) { 3720 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 3721 "interface '%s' due to rfkill", 3722 bss->ifname); 3723 drv->if_disabled = 1; 3724 send_rfkill_event = 1; 3725 } else { 3726 wpa_printf(MSG_ERROR, "nl80211: Could not set " 3727 "interface '%s' UP", bss->ifname); 3728 return -1; 3729 } 3730 } 3731 3732 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 3733 1, IF_OPER_DORMANT); 3734#endif /* HOSTAPD */ 3735 3736 if (wpa_driver_nl80211_capa(drv)) 3737 return -1; 3738 3739 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 3740 bss->addr)) 3741 return -1; 3742 3743 if (send_rfkill_event) { 3744 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 3745 drv, drv->ctx); 3746 } 3747 3748 return 0; 3749} 3750 3751 3752static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 3753{ 3754 struct nl_msg *msg; 3755 3756 msg = nlmsg_alloc(); 3757 if (!msg) 3758 return -ENOMEM; 3759 3760 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 3761 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 3762 3763 return send_and_recv_msgs(drv, msg, NULL, NULL); 3764 nla_put_failure: 3765 nlmsg_free(msg); 3766 return -ENOBUFS; 3767} 3768 3769 3770/** 3771 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 3772 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 3773 * 3774 * Shut down driver interface and processing of driver events. Free 3775 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 3776 */ 3777static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 3778{ 3779 struct wpa_driver_nl80211_data *drv = bss->drv; 3780 3781 bss->in_deinit = 1; 3782 if (drv->data_tx_status) 3783 eloop_unregister_read_sock(drv->eapol_tx_sock); 3784 if (drv->eapol_tx_sock >= 0) 3785 close(drv->eapol_tx_sock); 3786 3787 if (bss->nl_preq) 3788 wpa_driver_nl80211_probe_req_report(bss, 0); 3789 if (bss->added_if_into_bridge) { 3790 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 3791 bss->ifname) < 0) 3792 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3793 "interface %s from bridge %s: %s", 3794 bss->ifname, bss->brname, strerror(errno)); 3795 } 3796 if (bss->added_bridge) { 3797 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 3798 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3799 "bridge %s: %s", 3800 bss->brname, strerror(errno)); 3801 } 3802 3803 nl80211_remove_monitor_interface(drv); 3804 3805 if (is_ap_interface(drv->nlmode)) 3806 wpa_driver_nl80211_del_beacon(drv); 3807 3808#ifdef HOSTAPD 3809 if (drv->last_freq_ht) { 3810 /* Clear HT flags from the driver */ 3811 struct hostapd_freq_params freq; 3812 os_memset(&freq, 0, sizeof(freq)); 3813 freq.freq = drv->last_freq; 3814 wpa_driver_nl80211_set_freq(bss, &freq); 3815 } 3816 3817 if (drv->eapol_sock >= 0) { 3818 eloop_unregister_read_sock(drv->eapol_sock); 3819 close(drv->eapol_sock); 3820 } 3821 3822 if (drv->if_indices != drv->default_if_indices) 3823 os_free(drv->if_indices); 3824#endif /* HOSTAPD */ 3825 3826 if (drv->disabled_11b_rates) 3827 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 3828 3829 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 3830 IF_OPER_UP); 3831 rfkill_deinit(drv->rfkill); 3832 3833 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 3834 3835 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); 3836 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 3837 nl80211_mgmt_unsubscribe(bss, "deinit"); 3838 3839 nl_cb_put(drv->nl_cb); 3840 3841 nl80211_destroy_bss(&drv->first_bss); 3842 3843 os_free(drv->filter_ssids); 3844 3845 os_free(drv->auth_ie); 3846 3847 if (drv->in_interface_list) 3848 dl_list_del(&drv->list); 3849 3850 os_free(drv->extended_capa); 3851 os_free(drv->extended_capa_mask); 3852 os_free(drv); 3853} 3854 3855 3856/** 3857 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 3858 * @eloop_ctx: Driver private data 3859 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 3860 * 3861 * This function can be used as registered timeout when starting a scan to 3862 * generate a scan completed event if the driver does not report this. 3863 */ 3864static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 3865{ 3866 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3867 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 3868 wpa_driver_nl80211_set_mode(&drv->first_bss, 3869 drv->ap_scan_as_station); 3870 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3871 } 3872 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 3873 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 3874} 3875 3876 3877static struct nl_msg * 3878nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 3879 struct wpa_driver_scan_params *params) 3880{ 3881 struct nl_msg *msg; 3882 size_t i; 3883 3884 msg = nlmsg_alloc(); 3885 if (!msg) 3886 return NULL; 3887 3888 nl80211_cmd(drv, msg, 0, cmd); 3889 3890 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0) 3891 goto fail; 3892 3893 if (params->num_ssids) { 3894 struct nlattr *ssids; 3895 3896 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 3897 if (ssids == NULL) 3898 goto fail; 3899 for (i = 0; i < params->num_ssids; i++) { 3900 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 3901 params->ssids[i].ssid, 3902 params->ssids[i].ssid_len); 3903 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 3904 params->ssids[i].ssid) < 0) 3905 goto fail; 3906 } 3907 nla_nest_end(msg, ssids); 3908 } 3909 3910 if (params->extra_ies) { 3911 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 3912 params->extra_ies, params->extra_ies_len); 3913 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 3914 params->extra_ies) < 0) 3915 goto fail; 3916 } 3917 3918 if (params->freqs) { 3919 struct nlattr *freqs; 3920 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 3921 if (freqs == NULL) 3922 goto fail; 3923 for (i = 0; params->freqs[i]; i++) { 3924 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 3925 "MHz", params->freqs[i]); 3926 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 3927 goto fail; 3928 } 3929 nla_nest_end(msg, freqs); 3930 } 3931 3932 os_free(drv->filter_ssids); 3933 drv->filter_ssids = params->filter_ssids; 3934 params->filter_ssids = NULL; 3935 drv->num_filter_ssids = params->num_filter_ssids; 3936 3937 return msg; 3938 3939fail: 3940 nlmsg_free(msg); 3941 return NULL; 3942} 3943 3944 3945/** 3946 * wpa_driver_nl80211_scan - Request the driver to initiate scan 3947 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 3948 * @params: Scan parameters 3949 * Returns: 0 on success, -1 on failure 3950 */ 3951static int wpa_driver_nl80211_scan(struct i802_bss *bss, 3952 struct wpa_driver_scan_params *params) 3953{ 3954 struct wpa_driver_nl80211_data *drv = bss->drv; 3955 int ret = -1, timeout; 3956 struct nl_msg *msg = NULL; 3957 3958 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 3959 drv->scan_for_auth = 0; 3960 3961 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params); 3962 if (!msg) 3963 return -1; 3964 3965 if (params->p2p_probe) { 3966 struct nlattr *rates; 3967 3968 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 3969 3970 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 3971 if (rates == NULL) 3972 goto nla_put_failure; 3973 3974 /* 3975 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 3976 * by masking out everything else apart from the OFDM rates 6, 3977 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 3978 * rates are left enabled. 3979 */ 3980 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 3981 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 3982 nla_nest_end(msg, rates); 3983 3984 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 3985 } 3986 3987 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3988 msg = NULL; 3989 if (ret) { 3990 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 3991 "(%s)", ret, strerror(-ret)); 3992#ifdef HOSTAPD 3993 if (is_ap_interface(drv->nlmode)) { 3994 /* 3995 * mac80211 does not allow scan requests in AP mode, so 3996 * try to do this in station mode. 3997 */ 3998 if (wpa_driver_nl80211_set_mode( 3999 bss, NL80211_IFTYPE_STATION)) 4000 goto nla_put_failure; 4001 4002 if (wpa_driver_nl80211_scan(bss, params)) { 4003 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4004 goto nla_put_failure; 4005 } 4006 4007 /* Restore AP mode when processing scan results */ 4008 drv->ap_scan_as_station = drv->nlmode; 4009 ret = 0; 4010 } else 4011 goto nla_put_failure; 4012#else /* HOSTAPD */ 4013 goto nla_put_failure; 4014#endif /* HOSTAPD */ 4015 } 4016 4017 /* Not all drivers generate "scan completed" wireless event, so try to 4018 * read results after a timeout. */ 4019 timeout = 10; 4020 if (drv->scan_complete_events) { 4021 /* 4022 * The driver seems to deliver events to notify when scan is 4023 * complete, so use longer timeout to avoid race conditions 4024 * with scanning and following association request. 4025 */ 4026 timeout = 30; 4027 } 4028 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4029 "seconds", ret, timeout); 4030 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4031 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4032 drv, drv->ctx); 4033 4034nla_put_failure: 4035 nlmsg_free(msg); 4036 return ret; 4037} 4038 4039 4040/** 4041 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4042 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4043 * @params: Scan parameters 4044 * @interval: Interval between scan cycles in milliseconds 4045 * Returns: 0 on success, -1 on failure or if not supported 4046 */ 4047static int wpa_driver_nl80211_sched_scan(void *priv, 4048 struct wpa_driver_scan_params *params, 4049 u32 interval) 4050{ 4051 struct i802_bss *bss = priv; 4052 struct wpa_driver_nl80211_data *drv = bss->drv; 4053 int ret = -1; 4054 struct nl_msg *msg; 4055 size_t i; 4056 4057 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4058 4059#ifdef ANDROID 4060 if (!drv->capa.sched_scan_supported) 4061 return android_pno_start(bss, params); 4062#endif /* ANDROID */ 4063 4064 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params); 4065 if (!msg) 4066 goto nla_put_failure; 4067 4068 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4069 4070 if ((drv->num_filter_ssids && 4071 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4072 params->filter_rssi) { 4073 struct nlattr *match_sets; 4074 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4075 if (match_sets == NULL) 4076 goto nla_put_failure; 4077 4078 for (i = 0; i < drv->num_filter_ssids; i++) { 4079 struct nlattr *match_set_ssid; 4080 wpa_hexdump_ascii(MSG_MSGDUMP, 4081 "nl80211: Sched scan filter SSID", 4082 drv->filter_ssids[i].ssid, 4083 drv->filter_ssids[i].ssid_len); 4084 4085 match_set_ssid = nla_nest_start(msg, i + 1); 4086 if (match_set_ssid == NULL) 4087 goto nla_put_failure; 4088 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4089 drv->filter_ssids[i].ssid_len, 4090 drv->filter_ssids[i].ssid); 4091 4092 nla_nest_end(msg, match_set_ssid); 4093 } 4094 4095 if (params->filter_rssi) { 4096 struct nlattr *match_set_rssi; 4097 match_set_rssi = nla_nest_start(msg, 0); 4098 if (match_set_rssi == NULL) 4099 goto nla_put_failure; 4100 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4101 params->filter_rssi); 4102 wpa_printf(MSG_MSGDUMP, 4103 "nl80211: Sched scan RSSI filter %d dBm", 4104 params->filter_rssi); 4105 nla_nest_end(msg, match_set_rssi); 4106 } 4107 4108 nla_nest_end(msg, match_sets); 4109 } 4110 4111 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4112 4113 /* TODO: if we get an error here, we should fall back to normal scan */ 4114 4115 msg = NULL; 4116 if (ret) { 4117 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4118 "ret=%d (%s)", ret, strerror(-ret)); 4119 goto nla_put_failure; 4120 } 4121 4122 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4123 "scan interval %d msec", ret, interval); 4124 4125nla_put_failure: 4126 nlmsg_free(msg); 4127 return ret; 4128} 4129 4130 4131/** 4132 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4133 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4134 * Returns: 0 on success, -1 on failure or if not supported 4135 */ 4136static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4137{ 4138 struct i802_bss *bss = priv; 4139 struct wpa_driver_nl80211_data *drv = bss->drv; 4140 int ret = 0; 4141 struct nl_msg *msg; 4142 4143#ifdef ANDROID 4144 if (!drv->capa.sched_scan_supported) 4145 return android_pno_stop(bss); 4146#endif /* ANDROID */ 4147 4148 msg = nlmsg_alloc(); 4149 if (!msg) 4150 return -1; 4151 4152 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4153 4154 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4155 4156 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4157 msg = NULL; 4158 if (ret) { 4159 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4160 "ret=%d (%s)", ret, strerror(-ret)); 4161 goto nla_put_failure; 4162 } 4163 4164 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4165 4166nla_put_failure: 4167 nlmsg_free(msg); 4168 return ret; 4169} 4170 4171 4172static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4173{ 4174 const u8 *end, *pos; 4175 4176 if (ies == NULL) 4177 return NULL; 4178 4179 pos = ies; 4180 end = ies + ies_len; 4181 4182 while (pos + 1 < end) { 4183 if (pos + 2 + pos[1] > end) 4184 break; 4185 if (pos[0] == ie) 4186 return pos; 4187 pos += 2 + pos[1]; 4188 } 4189 4190 return NULL; 4191} 4192 4193 4194static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4195 const u8 *ie, size_t ie_len) 4196{ 4197 const u8 *ssid; 4198 size_t i; 4199 4200 if (drv->filter_ssids == NULL) 4201 return 0; 4202 4203 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4204 if (ssid == NULL) 4205 return 1; 4206 4207 for (i = 0; i < drv->num_filter_ssids; i++) { 4208 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4209 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4210 0) 4211 return 0; 4212 } 4213 4214 return 1; 4215} 4216 4217 4218static int bss_info_handler(struct nl_msg *msg, void *arg) 4219{ 4220 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4221 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4222 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4223 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4224 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4225 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4226 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4227 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4228 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4229 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4230 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4231 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4232 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4233 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4234 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4235 }; 4236 struct nl80211_bss_info_arg *_arg = arg; 4237 struct wpa_scan_results *res = _arg->res; 4238 struct wpa_scan_res **tmp; 4239 struct wpa_scan_res *r; 4240 const u8 *ie, *beacon_ie; 4241 size_t ie_len, beacon_ie_len; 4242 u8 *pos; 4243 size_t i; 4244 4245 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4246 genlmsg_attrlen(gnlh, 0), NULL); 4247 if (!tb[NL80211_ATTR_BSS]) 4248 return NL_SKIP; 4249 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4250 bss_policy)) 4251 return NL_SKIP; 4252 if (bss[NL80211_BSS_STATUS]) { 4253 enum nl80211_bss_status status; 4254 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4255 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4256 bss[NL80211_BSS_FREQUENCY]) { 4257 _arg->assoc_freq = 4258 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4259 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4260 _arg->assoc_freq); 4261 } 4262 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4263 bss[NL80211_BSS_BSSID]) { 4264 os_memcpy(_arg->assoc_bssid, 4265 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4266 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4267 MACSTR, MAC2STR(_arg->assoc_bssid)); 4268 } 4269 } 4270 if (!res) 4271 return NL_SKIP; 4272 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4273 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4274 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4275 } else { 4276 ie = NULL; 4277 ie_len = 0; 4278 } 4279 if (bss[NL80211_BSS_BEACON_IES]) { 4280 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4281 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4282 } else { 4283 beacon_ie = NULL; 4284 beacon_ie_len = 0; 4285 } 4286 4287 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4288 ie ? ie_len : beacon_ie_len)) 4289 return NL_SKIP; 4290 4291 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4292 if (r == NULL) 4293 return NL_SKIP; 4294 if (bss[NL80211_BSS_BSSID]) 4295 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4296 ETH_ALEN); 4297 if (bss[NL80211_BSS_FREQUENCY]) 4298 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4299 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4300 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4301 if (bss[NL80211_BSS_CAPABILITY]) 4302 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4303 r->flags |= WPA_SCAN_NOISE_INVALID; 4304 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4305 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4306 r->level /= 100; /* mBm to dBm */ 4307 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4308 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4309 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4310 r->flags |= WPA_SCAN_QUAL_INVALID; 4311 } else 4312 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4313 if (bss[NL80211_BSS_TSF]) 4314 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4315 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4316 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4317 r->ie_len = ie_len; 4318 pos = (u8 *) (r + 1); 4319 if (ie) { 4320 os_memcpy(pos, ie, ie_len); 4321 pos += ie_len; 4322 } 4323 r->beacon_ie_len = beacon_ie_len; 4324 if (beacon_ie) 4325 os_memcpy(pos, beacon_ie, beacon_ie_len); 4326 4327 if (bss[NL80211_BSS_STATUS]) { 4328 enum nl80211_bss_status status; 4329 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4330 switch (status) { 4331 case NL80211_BSS_STATUS_AUTHENTICATED: 4332 r->flags |= WPA_SCAN_AUTHENTICATED; 4333 break; 4334 case NL80211_BSS_STATUS_ASSOCIATED: 4335 r->flags |= WPA_SCAN_ASSOCIATED; 4336 break; 4337 default: 4338 break; 4339 } 4340 } 4341 4342 /* 4343 * cfg80211 maintains separate BSS table entries for APs if the same 4344 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4345 * not use frequency as a separate key in the BSS table, so filter out 4346 * duplicated entries. Prefer associated BSS entry in such a case in 4347 * order to get the correct frequency into the BSS table. 4348 */ 4349 for (i = 0; i < res->num; i++) { 4350 const u8 *s1, *s2; 4351 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4352 continue; 4353 4354 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4355 res->res[i]->ie_len, WLAN_EID_SSID); 4356 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4357 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4358 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4359 continue; 4360 4361 /* Same BSSID,SSID was already included in scan results */ 4362 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4363 "for " MACSTR, MAC2STR(r->bssid)); 4364 4365 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4366 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4367 os_free(res->res[i]); 4368 res->res[i] = r; 4369 } else 4370 os_free(r); 4371 return NL_SKIP; 4372 } 4373 4374 tmp = os_realloc_array(res->res, res->num + 1, 4375 sizeof(struct wpa_scan_res *)); 4376 if (tmp == NULL) { 4377 os_free(r); 4378 return NL_SKIP; 4379 } 4380 tmp[res->num++] = r; 4381 res->res = tmp; 4382 4383 return NL_SKIP; 4384} 4385 4386 4387static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4388 const u8 *addr) 4389{ 4390 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4391 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4392 "mismatch (" MACSTR ")", MAC2STR(addr)); 4393 wpa_driver_nl80211_mlme(drv, addr, 4394 NL80211_CMD_DEAUTHENTICATE, 4395 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4396 } 4397} 4398 4399 4400static void wpa_driver_nl80211_check_bss_status( 4401 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4402{ 4403 size_t i; 4404 4405 for (i = 0; i < res->num; i++) { 4406 struct wpa_scan_res *r = res->res[i]; 4407 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4408 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4409 "indicates BSS status with " MACSTR 4410 " as authenticated", 4411 MAC2STR(r->bssid)); 4412 if (is_sta_interface(drv->nlmode) && 4413 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4414 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4415 0) { 4416 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4417 " in local state (auth=" MACSTR 4418 " assoc=" MACSTR ")", 4419 MAC2STR(drv->auth_bssid), 4420 MAC2STR(drv->bssid)); 4421 clear_state_mismatch(drv, r->bssid); 4422 } 4423 } 4424 4425 if (r->flags & WPA_SCAN_ASSOCIATED) { 4426 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4427 "indicate BSS status with " MACSTR 4428 " as associated", 4429 MAC2STR(r->bssid)); 4430 if (is_sta_interface(drv->nlmode) && 4431 !drv->associated) { 4432 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4433 "(not associated) does not match " 4434 "with BSS state"); 4435 clear_state_mismatch(drv, r->bssid); 4436 } else if (is_sta_interface(drv->nlmode) && 4437 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4438 0) { 4439 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4440 "(associated with " MACSTR ") does " 4441 "not match with BSS state", 4442 MAC2STR(drv->bssid)); 4443 clear_state_mismatch(drv, r->bssid); 4444 clear_state_mismatch(drv, drv->bssid); 4445 } 4446 } 4447 } 4448} 4449 4450 4451static struct wpa_scan_results * 4452nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4453{ 4454 struct nl_msg *msg; 4455 struct wpa_scan_results *res; 4456 int ret; 4457 struct nl80211_bss_info_arg arg; 4458 4459 res = os_zalloc(sizeof(*res)); 4460 if (res == NULL) 4461 return NULL; 4462 msg = nlmsg_alloc(); 4463 if (!msg) 4464 goto nla_put_failure; 4465 4466 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4467 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4468 4469 arg.drv = drv; 4470 arg.res = res; 4471 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4472 msg = NULL; 4473 if (ret == 0) { 4474 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4475 "BSSes)", (unsigned long) res->num); 4476 nl80211_get_noise_for_scan_results(drv, res); 4477 return res; 4478 } 4479 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4480 "(%s)", ret, strerror(-ret)); 4481nla_put_failure: 4482 nlmsg_free(msg); 4483 wpa_scan_results_free(res); 4484 return NULL; 4485} 4486 4487 4488/** 4489 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4490 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4491 * Returns: Scan results on success, -1 on failure 4492 */ 4493static struct wpa_scan_results * 4494wpa_driver_nl80211_get_scan_results(void *priv) 4495{ 4496 struct i802_bss *bss = priv; 4497 struct wpa_driver_nl80211_data *drv = bss->drv; 4498 struct wpa_scan_results *res; 4499 4500 res = nl80211_get_scan_results(drv); 4501 if (res) 4502 wpa_driver_nl80211_check_bss_status(drv, res); 4503 return res; 4504} 4505 4506 4507static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4508{ 4509 struct wpa_scan_results *res; 4510 size_t i; 4511 4512 res = nl80211_get_scan_results(drv); 4513 if (res == NULL) { 4514 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4515 return; 4516 } 4517 4518 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4519 for (i = 0; i < res->num; i++) { 4520 struct wpa_scan_res *r = res->res[i]; 4521 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4522 (int) i, (int) res->num, MAC2STR(r->bssid), 4523 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4524 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4525 } 4526 4527 wpa_scan_results_free(res); 4528} 4529 4530 4531static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4532 enum wpa_alg alg, const u8 *addr, 4533 int key_idx, int set_tx, 4534 const u8 *seq, size_t seq_len, 4535 const u8 *key, size_t key_len) 4536{ 4537 struct wpa_driver_nl80211_data *drv = bss->drv; 4538 int ifindex = if_nametoindex(ifname); 4539 struct nl_msg *msg; 4540 int ret; 4541 4542 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " 4543 "set_tx=%d seq_len=%lu key_len=%lu", 4544 __func__, ifindex, alg, addr, key_idx, set_tx, 4545 (unsigned long) seq_len, (unsigned long) key_len); 4546#ifdef CONFIG_TDLS 4547 if (key_idx == -1) 4548 key_idx = 0; 4549#endif /* CONFIG_TDLS */ 4550 4551 msg = nlmsg_alloc(); 4552 if (!msg) 4553 return -ENOMEM; 4554 4555 if (alg == WPA_ALG_NONE) { 4556 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4557 } else { 4558 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4559 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4560 switch (alg) { 4561 case WPA_ALG_WEP: 4562 if (key_len == 5) 4563 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4564 WLAN_CIPHER_SUITE_WEP40); 4565 else 4566 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4567 WLAN_CIPHER_SUITE_WEP104); 4568 break; 4569 case WPA_ALG_TKIP: 4570 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4571 WLAN_CIPHER_SUITE_TKIP); 4572 break; 4573 case WPA_ALG_CCMP: 4574 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4575 WLAN_CIPHER_SUITE_CCMP); 4576 break; 4577 case WPA_ALG_GCMP: 4578 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4579 WLAN_CIPHER_SUITE_GCMP); 4580 break; 4581 case WPA_ALG_IGTK: 4582 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4583 WLAN_CIPHER_SUITE_AES_CMAC); 4584 break; 4585 case WPA_ALG_SMS4: 4586 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4587 WLAN_CIPHER_SUITE_SMS4); 4588 break; 4589 case WPA_ALG_KRK: 4590 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4591 WLAN_CIPHER_SUITE_KRK); 4592 break; 4593 default: 4594 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4595 "algorithm %d", __func__, alg); 4596 nlmsg_free(msg); 4597 return -1; 4598 } 4599 } 4600 4601 if (seq && seq_len) 4602 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4603 4604 if (addr && !is_broadcast_ether_addr(addr)) { 4605 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4606 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4607 4608 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4609 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4610 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4611 NL80211_KEYTYPE_GROUP); 4612 } 4613 } else if (addr && is_broadcast_ether_addr(addr)) { 4614 struct nlattr *types; 4615 4616 wpa_printf(MSG_DEBUG, " broadcast key"); 4617 4618 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4619 if (!types) 4620 goto nla_put_failure; 4621 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4622 nla_nest_end(msg, types); 4623 } 4624 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4625 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4626 4627 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4628 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4629 ret = 0; 4630 if (ret) 4631 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4632 ret, strerror(-ret)); 4633 4634 /* 4635 * If we failed or don't need to set the default TX key (below), 4636 * we're done here. 4637 */ 4638 if (ret || !set_tx || alg == WPA_ALG_NONE) 4639 return ret; 4640 if (is_ap_interface(drv->nlmode) && addr && 4641 !is_broadcast_ether_addr(addr)) 4642 return ret; 4643 4644 msg = nlmsg_alloc(); 4645 if (!msg) 4646 return -ENOMEM; 4647 4648 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 4649 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4650 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4651 if (alg == WPA_ALG_IGTK) 4652 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 4653 else 4654 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 4655 if (addr && is_broadcast_ether_addr(addr)) { 4656 struct nlattr *types; 4657 4658 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4659 if (!types) 4660 goto nla_put_failure; 4661 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4662 nla_nest_end(msg, types); 4663 } else if (addr) { 4664 struct nlattr *types; 4665 4666 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4667 if (!types) 4668 goto nla_put_failure; 4669 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 4670 nla_nest_end(msg, types); 4671 } 4672 4673 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4674 if (ret == -ENOENT) 4675 ret = 0; 4676 if (ret) 4677 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 4678 "err=%d %s)", ret, strerror(-ret)); 4679 return ret; 4680 4681nla_put_failure: 4682 nlmsg_free(msg); 4683 return -ENOBUFS; 4684} 4685 4686 4687static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 4688 int key_idx, int defkey, 4689 const u8 *seq, size_t seq_len, 4690 const u8 *key, size_t key_len) 4691{ 4692 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 4693 if (!key_attr) 4694 return -1; 4695 4696 if (defkey && alg == WPA_ALG_IGTK) 4697 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 4698 else if (defkey) 4699 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4700 4701 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 4702 4703 switch (alg) { 4704 case WPA_ALG_WEP: 4705 if (key_len == 5) 4706 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4707 WLAN_CIPHER_SUITE_WEP40); 4708 else 4709 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4710 WLAN_CIPHER_SUITE_WEP104); 4711 break; 4712 case WPA_ALG_TKIP: 4713 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 4714 break; 4715 case WPA_ALG_CCMP: 4716 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 4717 break; 4718 case WPA_ALG_GCMP: 4719 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 4720 break; 4721 case WPA_ALG_IGTK: 4722 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4723 WLAN_CIPHER_SUITE_AES_CMAC); 4724 break; 4725 default: 4726 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4727 "algorithm %d", __func__, alg); 4728 return -1; 4729 } 4730 4731 if (seq && seq_len) 4732 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 4733 4734 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 4735 4736 nla_nest_end(msg, key_attr); 4737 4738 return 0; 4739 nla_put_failure: 4740 return -1; 4741} 4742 4743 4744static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 4745 struct nl_msg *msg) 4746{ 4747 int i, privacy = 0; 4748 struct nlattr *nl_keys, *nl_key; 4749 4750 for (i = 0; i < 4; i++) { 4751 if (!params->wep_key[i]) 4752 continue; 4753 privacy = 1; 4754 break; 4755 } 4756 if (params->wps == WPS_MODE_PRIVACY) 4757 privacy = 1; 4758 if (params->pairwise_suite && 4759 params->pairwise_suite != WPA_CIPHER_NONE) 4760 privacy = 1; 4761 4762 if (!privacy) 4763 return 0; 4764 4765 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 4766 4767 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 4768 if (!nl_keys) 4769 goto nla_put_failure; 4770 4771 for (i = 0; i < 4; i++) { 4772 if (!params->wep_key[i]) 4773 continue; 4774 4775 nl_key = nla_nest_start(msg, i); 4776 if (!nl_key) 4777 goto nla_put_failure; 4778 4779 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 4780 params->wep_key[i]); 4781 if (params->wep_key_len[i] == 5) 4782 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4783 WLAN_CIPHER_SUITE_WEP40); 4784 else 4785 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4786 WLAN_CIPHER_SUITE_WEP104); 4787 4788 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 4789 4790 if (i == params->wep_tx_keyidx) 4791 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4792 4793 nla_nest_end(msg, nl_key); 4794 } 4795 nla_nest_end(msg, nl_keys); 4796 4797 return 0; 4798 4799nla_put_failure: 4800 return -ENOBUFS; 4801} 4802 4803 4804static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 4805 const u8 *addr, int cmd, u16 reason_code, 4806 int local_state_change) 4807{ 4808 int ret = -1; 4809 struct nl_msg *msg; 4810 4811 msg = nlmsg_alloc(); 4812 if (!msg) 4813 return -1; 4814 4815 nl80211_cmd(drv, msg, 0, cmd); 4816 4817 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4818 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 4819 if (addr) 4820 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4821 if (local_state_change) 4822 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 4823 4824 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4825 msg = NULL; 4826 if (ret) { 4827 wpa_dbg(drv->ctx, MSG_DEBUG, 4828 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 4829 reason_code, ret, strerror(-ret)); 4830 goto nla_put_failure; 4831 } 4832 ret = 0; 4833 4834nla_put_failure: 4835 nlmsg_free(msg); 4836 return ret; 4837} 4838 4839 4840static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 4841 int reason_code) 4842{ 4843 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 4844 drv->associated = 0; 4845 drv->ignore_next_local_disconnect = 0; 4846 /* Disconnect command doesn't need BSSID - it uses cached value */ 4847 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 4848 reason_code, 0); 4849} 4850 4851 4852static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 4853 const u8 *addr, int reason_code) 4854{ 4855 struct wpa_driver_nl80211_data *drv = bss->drv; 4856 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 4857 return wpa_driver_nl80211_disconnect(drv, reason_code); 4858 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 4859 __func__, MAC2STR(addr), reason_code); 4860 drv->associated = 0; 4861 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 4862 return nl80211_leave_ibss(drv); 4863 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 4864 reason_code, 0); 4865} 4866 4867 4868static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 4869 struct wpa_driver_auth_params *params) 4870{ 4871 int i; 4872 4873 drv->auth_freq = params->freq; 4874 drv->auth_alg = params->auth_alg; 4875 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 4876 drv->auth_local_state_change = params->local_state_change; 4877 drv->auth_p2p = params->p2p; 4878 4879 if (params->bssid) 4880 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 4881 else 4882 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 4883 4884 if (params->ssid) { 4885 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 4886 drv->auth_ssid_len = params->ssid_len; 4887 } else 4888 drv->auth_ssid_len = 0; 4889 4890 4891 os_free(drv->auth_ie); 4892 drv->auth_ie = NULL; 4893 drv->auth_ie_len = 0; 4894 if (params->ie) { 4895 drv->auth_ie = os_malloc(params->ie_len); 4896 if (drv->auth_ie) { 4897 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 4898 drv->auth_ie_len = params->ie_len; 4899 } 4900 } 4901 4902 for (i = 0; i < 4; i++) { 4903 if (params->wep_key[i] && params->wep_key_len[i] && 4904 params->wep_key_len[i] <= 16) { 4905 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 4906 params->wep_key_len[i]); 4907 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 4908 } else 4909 drv->auth_wep_key_len[i] = 0; 4910 } 4911} 4912 4913 4914static int wpa_driver_nl80211_authenticate( 4915 struct i802_bss *bss, struct wpa_driver_auth_params *params) 4916{ 4917 struct wpa_driver_nl80211_data *drv = bss->drv; 4918 int ret = -1, i; 4919 struct nl_msg *msg; 4920 enum nl80211_auth_type type; 4921 enum nl80211_iftype nlmode; 4922 int count = 0; 4923 int is_retry; 4924 4925 is_retry = drv->retry_auth; 4926 drv->retry_auth = 0; 4927 4928 drv->associated = 0; 4929 os_memset(drv->auth_bssid, 0, ETH_ALEN); 4930 /* FIX: IBSS mode */ 4931 nlmode = params->p2p ? 4932 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 4933 if (drv->nlmode != nlmode && 4934 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 4935 return -1; 4936 4937retry: 4938 msg = nlmsg_alloc(); 4939 if (!msg) 4940 return -1; 4941 4942 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 4943 drv->ifindex); 4944 4945 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 4946 4947 for (i = 0; i < 4; i++) { 4948 if (!params->wep_key[i]) 4949 continue; 4950 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 4951 NULL, i, 4952 i == params->wep_tx_keyidx, NULL, 0, 4953 params->wep_key[i], 4954 params->wep_key_len[i]); 4955 if (params->wep_tx_keyidx != i) 4956 continue; 4957 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 4958 params->wep_key[i], params->wep_key_len[i])) { 4959 nlmsg_free(msg); 4960 return -1; 4961 } 4962 } 4963 4964 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4965 if (params->bssid) { 4966 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 4967 MAC2STR(params->bssid)); 4968 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 4969 } 4970 if (params->freq) { 4971 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 4972 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 4973 } 4974 if (params->ssid) { 4975 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4976 params->ssid, params->ssid_len); 4977 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 4978 params->ssid); 4979 } 4980 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 4981 if (params->ie) 4982 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 4983 if (params->sae_data) { 4984 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 4985 params->sae_data_len); 4986 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 4987 params->sae_data); 4988 } 4989 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 4990 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 4991 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 4992 type = NL80211_AUTHTYPE_SHARED_KEY; 4993 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 4994 type = NL80211_AUTHTYPE_NETWORK_EAP; 4995 else if (params->auth_alg & WPA_AUTH_ALG_FT) 4996 type = NL80211_AUTHTYPE_FT; 4997 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 4998 type = NL80211_AUTHTYPE_SAE; 4999 else 5000 goto nla_put_failure; 5001 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5002 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5003 if (params->local_state_change) { 5004 wpa_printf(MSG_DEBUG, " * Local state change only"); 5005 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5006 } 5007 5008 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5009 msg = NULL; 5010 if (ret) { 5011 wpa_dbg(drv->ctx, MSG_DEBUG, 5012 "nl80211: MLME command failed (auth): ret=%d (%s)", 5013 ret, strerror(-ret)); 5014 count++; 5015 if (ret == -EALREADY && count == 1 && params->bssid && 5016 !params->local_state_change) { 5017 /* 5018 * mac80211 does not currently accept new 5019 * authentication if we are already authenticated. As a 5020 * workaround, force deauthentication and try again. 5021 */ 5022 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5023 "after forced deauthentication"); 5024 wpa_driver_nl80211_deauthenticate( 5025 bss, params->bssid, 5026 WLAN_REASON_PREV_AUTH_NOT_VALID); 5027 nlmsg_free(msg); 5028 goto retry; 5029 } 5030 5031 if (ret == -ENOENT && params->freq && !is_retry) { 5032 /* 5033 * cfg80211 has likely expired the BSS entry even 5034 * though it was previously available in our internal 5035 * BSS table. To recover quickly, start a single 5036 * channel scan on the specified channel. 5037 */ 5038 struct wpa_driver_scan_params scan; 5039 int freqs[2]; 5040 5041 os_memset(&scan, 0, sizeof(scan)); 5042 scan.num_ssids = 1; 5043 if (params->ssid) { 5044 scan.ssids[0].ssid = params->ssid; 5045 scan.ssids[0].ssid_len = params->ssid_len; 5046 } 5047 freqs[0] = params->freq; 5048 freqs[1] = 0; 5049 scan.freqs = freqs; 5050 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5051 "channel scan to refresh cfg80211 BSS " 5052 "entry"); 5053 ret = wpa_driver_nl80211_scan(bss, &scan); 5054 if (ret == 0) { 5055 nl80211_copy_auth_params(drv, params); 5056 drv->scan_for_auth = 1; 5057 } 5058 } else if (is_retry) { 5059 /* 5060 * Need to indicate this with an event since the return 5061 * value from the retry is not delivered to core code. 5062 */ 5063 union wpa_event_data event; 5064 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5065 "failed"); 5066 os_memset(&event, 0, sizeof(event)); 5067 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5068 ETH_ALEN); 5069 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5070 &event); 5071 } 5072 5073 goto nla_put_failure; 5074 } 5075 ret = 0; 5076 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5077 "successfully"); 5078 5079nla_put_failure: 5080 nlmsg_free(msg); 5081 return ret; 5082} 5083 5084 5085static int wpa_driver_nl80211_authenticate_retry( 5086 struct wpa_driver_nl80211_data *drv) 5087{ 5088 struct wpa_driver_auth_params params; 5089 struct i802_bss *bss = &drv->first_bss; 5090 int i; 5091 5092 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5093 5094 os_memset(¶ms, 0, sizeof(params)); 5095 params.freq = drv->auth_freq; 5096 params.auth_alg = drv->auth_alg; 5097 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5098 params.local_state_change = drv->auth_local_state_change; 5099 params.p2p = drv->auth_p2p; 5100 5101 if (!is_zero_ether_addr(drv->auth_bssid_)) 5102 params.bssid = drv->auth_bssid_; 5103 5104 if (drv->auth_ssid_len) { 5105 params.ssid = drv->auth_ssid; 5106 params.ssid_len = drv->auth_ssid_len; 5107 } 5108 5109 params.ie = drv->auth_ie; 5110 params.ie_len = drv->auth_ie_len; 5111 5112 for (i = 0; i < 4; i++) { 5113 if (drv->auth_wep_key_len[i]) { 5114 params.wep_key[i] = drv->auth_wep_key[i]; 5115 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5116 } 5117 } 5118 5119 drv->retry_auth = 1; 5120 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5121} 5122 5123 5124struct phy_info_arg { 5125 u16 *num_modes; 5126 struct hostapd_hw_modes *modes; 5127 int last_mode, last_chan_idx; 5128}; 5129 5130static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5131 struct nlattr *ampdu_factor, 5132 struct nlattr *ampdu_density, 5133 struct nlattr *mcs_set) 5134{ 5135 if (capa) 5136 mode->ht_capab = nla_get_u16(capa); 5137 5138 if (ampdu_factor) 5139 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5140 5141 if (ampdu_density) 5142 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5143 5144 if (mcs_set && nla_len(mcs_set) >= 16) { 5145 u8 *mcs; 5146 mcs = nla_data(mcs_set); 5147 os_memcpy(mode->mcs_set, mcs, 16); 5148 } 5149} 5150 5151 5152static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5153 struct nlattr *capa, 5154 struct nlattr *mcs_set) 5155{ 5156 if (capa) 5157 mode->vht_capab = nla_get_u32(capa); 5158 5159 if (mcs_set && nla_len(mcs_set) >= 8) { 5160 u8 *mcs; 5161 mcs = nla_data(mcs_set); 5162 os_memcpy(mode->vht_mcs_set, mcs, 8); 5163 } 5164} 5165 5166 5167static void phy_info_freq(struct hostapd_hw_modes *mode, 5168 struct hostapd_channel_data *chan, 5169 struct nlattr *tb_freq[]) 5170{ 5171 u8 channel; 5172 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5173 chan->flag = 0; 5174 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5175 chan->chan = channel; 5176 5177 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5178 chan->flag |= HOSTAPD_CHAN_DISABLED; 5179 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5180 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5181 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5182 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5183 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5184 chan->flag |= HOSTAPD_CHAN_RADAR; 5185 5186 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5187 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5188 chan->max_tx_power = nla_get_u32( 5189 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5190 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5191 enum nl80211_dfs_state state = 5192 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5193 5194 switch (state) { 5195 case NL80211_DFS_USABLE: 5196 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5197 break; 5198 case NL80211_DFS_AVAILABLE: 5199 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5200 break; 5201 case NL80211_DFS_UNAVAILABLE: 5202 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5203 break; 5204 } 5205 } 5206} 5207 5208 5209static int phy_info_freqs(struct phy_info_arg *phy_info, 5210 struct hostapd_hw_modes *mode, struct nlattr *tb) 5211{ 5212 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5213 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5214 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5215 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5216 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5217 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5218 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5219 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5220 }; 5221 int new_channels = 0; 5222 struct hostapd_channel_data *channel; 5223 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5224 struct nlattr *nl_freq; 5225 int rem_freq, idx; 5226 5227 if (tb == NULL) 5228 return NL_OK; 5229 5230 nla_for_each_nested(nl_freq, tb, rem_freq) { 5231 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5232 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5233 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5234 continue; 5235 new_channels++; 5236 } 5237 5238 channel = os_realloc_array(mode->channels, 5239 mode->num_channels + new_channels, 5240 sizeof(struct hostapd_channel_data)); 5241 if (!channel) 5242 return NL_SKIP; 5243 5244 mode->channels = channel; 5245 mode->num_channels += new_channels; 5246 5247 idx = phy_info->last_chan_idx; 5248 5249 nla_for_each_nested(nl_freq, tb, rem_freq) { 5250 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5251 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5252 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5253 continue; 5254 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5255 idx++; 5256 } 5257 phy_info->last_chan_idx = idx; 5258 5259 return NL_OK; 5260} 5261 5262 5263static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5264{ 5265 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5266 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5267 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5268 { .type = NLA_FLAG }, 5269 }; 5270 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5271 struct nlattr *nl_rate; 5272 int rem_rate, idx; 5273 5274 if (tb == NULL) 5275 return NL_OK; 5276 5277 nla_for_each_nested(nl_rate, tb, rem_rate) { 5278 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5279 nla_data(nl_rate), nla_len(nl_rate), 5280 rate_policy); 5281 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5282 continue; 5283 mode->num_rates++; 5284 } 5285 5286 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5287 if (!mode->rates) 5288 return NL_SKIP; 5289 5290 idx = 0; 5291 5292 nla_for_each_nested(nl_rate, tb, rem_rate) { 5293 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5294 nla_data(nl_rate), nla_len(nl_rate), 5295 rate_policy); 5296 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5297 continue; 5298 mode->rates[idx] = nla_get_u32( 5299 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5300 idx++; 5301 } 5302 5303 return NL_OK; 5304} 5305 5306 5307static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5308{ 5309 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5310 struct hostapd_hw_modes *mode; 5311 int ret; 5312 5313 if (phy_info->last_mode != nl_band->nla_type) { 5314 mode = os_realloc_array(phy_info->modes, 5315 *phy_info->num_modes + 1, 5316 sizeof(*mode)); 5317 if (!mode) 5318 return NL_SKIP; 5319 phy_info->modes = mode; 5320 5321 mode = &phy_info->modes[*(phy_info->num_modes)]; 5322 os_memset(mode, 0, sizeof(*mode)); 5323 mode->mode = NUM_HOSTAPD_MODES; 5324 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; 5325 *(phy_info->num_modes) += 1; 5326 phy_info->last_mode = nl_band->nla_type; 5327 phy_info->last_chan_idx = 0; 5328 } else 5329 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5330 5331 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5332 nla_len(nl_band), NULL); 5333 5334 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5335 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5336 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5337 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5338 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5339 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5340 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5341 if (ret != NL_OK) 5342 return ret; 5343 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5344 if (ret != NL_OK) 5345 return ret; 5346 5347 return NL_OK; 5348} 5349 5350 5351static int phy_info_handler(struct nl_msg *msg, void *arg) 5352{ 5353 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5354 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5355 struct phy_info_arg *phy_info = arg; 5356 struct nlattr *nl_band; 5357 int rem_band; 5358 5359 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5360 genlmsg_attrlen(gnlh, 0), NULL); 5361 5362 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5363 return NL_SKIP; 5364 5365 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5366 { 5367 int res = phy_info_band(phy_info, nl_band); 5368 if (res != NL_OK) 5369 return res; 5370 } 5371 5372 return NL_SKIP; 5373} 5374 5375 5376static struct hostapd_hw_modes * 5377wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5378 u16 *num_modes) 5379{ 5380 u16 m; 5381 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5382 int i, mode11g_idx = -1; 5383 5384 /* heuristic to set up modes */ 5385 for (m = 0; m < *num_modes; m++) { 5386 if (!modes[m].num_channels) 5387 continue; 5388 if (modes[m].channels[0].freq < 4000) { 5389 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5390 for (i = 0; i < modes[m].num_rates; i++) { 5391 if (modes[m].rates[i] > 200) { 5392 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5393 break; 5394 } 5395 } 5396 } else if (modes[m].channels[0].freq > 50000) 5397 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5398 else 5399 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5400 } 5401 5402 /* If only 802.11g mode is included, use it to construct matching 5403 * 802.11b mode data. */ 5404 5405 for (m = 0; m < *num_modes; m++) { 5406 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5407 return modes; /* 802.11b already included */ 5408 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5409 mode11g_idx = m; 5410 } 5411 5412 if (mode11g_idx < 0) 5413 return modes; /* 2.4 GHz band not supported at all */ 5414 5415 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5416 if (nmodes == NULL) 5417 return modes; /* Could not add 802.11b mode */ 5418 5419 mode = &nmodes[*num_modes]; 5420 os_memset(mode, 0, sizeof(*mode)); 5421 (*num_modes)++; 5422 modes = nmodes; 5423 5424 mode->mode = HOSTAPD_MODE_IEEE80211B; 5425 5426 mode11g = &modes[mode11g_idx]; 5427 mode->num_channels = mode11g->num_channels; 5428 mode->channels = os_malloc(mode11g->num_channels * 5429 sizeof(struct hostapd_channel_data)); 5430 if (mode->channels == NULL) { 5431 (*num_modes)--; 5432 return modes; /* Could not add 802.11b mode */ 5433 } 5434 os_memcpy(mode->channels, mode11g->channels, 5435 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5436 5437 mode->num_rates = 0; 5438 mode->rates = os_malloc(4 * sizeof(int)); 5439 if (mode->rates == NULL) { 5440 os_free(mode->channels); 5441 (*num_modes)--; 5442 return modes; /* Could not add 802.11b mode */ 5443 } 5444 5445 for (i = 0; i < mode11g->num_rates; i++) { 5446 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5447 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5448 continue; 5449 mode->rates[mode->num_rates] = mode11g->rates[i]; 5450 mode->num_rates++; 5451 if (mode->num_rates == 4) 5452 break; 5453 } 5454 5455 if (mode->num_rates == 0) { 5456 os_free(mode->channels); 5457 os_free(mode->rates); 5458 (*num_modes)--; 5459 return modes; /* No 802.11b rates */ 5460 } 5461 5462 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5463 "information"); 5464 5465 return modes; 5466} 5467 5468 5469static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5470 int end) 5471{ 5472 int c; 5473 5474 for (c = 0; c < mode->num_channels; c++) { 5475 struct hostapd_channel_data *chan = &mode->channels[c]; 5476 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5477 chan->flag |= HOSTAPD_CHAN_HT40; 5478 } 5479} 5480 5481 5482static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5483 int end) 5484{ 5485 int c; 5486 5487 for (c = 0; c < mode->num_channels; c++) { 5488 struct hostapd_channel_data *chan = &mode->channels[c]; 5489 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5490 continue; 5491 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5492 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5493 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5494 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5495 } 5496} 5497 5498 5499static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5500 struct phy_info_arg *results) 5501{ 5502 u32 start, end, max_bw; 5503 u16 m; 5504 5505 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5506 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5507 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5508 return; 5509 5510 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5511 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5512 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5513 5514 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5515 start, end, max_bw); 5516 if (max_bw < 40) 5517 return; 5518 5519 for (m = 0; m < *results->num_modes; m++) { 5520 if (!(results->modes[m].ht_capab & 5521 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5522 continue; 5523 nl80211_set_ht40_mode(&results->modes[m], start, end); 5524 } 5525} 5526 5527 5528static void nl80211_reg_rule_sec(struct nlattr *tb[], 5529 struct phy_info_arg *results) 5530{ 5531 u32 start, end, max_bw; 5532 u16 m; 5533 5534 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5535 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5536 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5537 return; 5538 5539 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5540 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5541 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5542 5543 if (max_bw < 20) 5544 return; 5545 5546 for (m = 0; m < *results->num_modes; m++) { 5547 if (!(results->modes[m].ht_capab & 5548 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5549 continue; 5550 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5551 } 5552} 5553 5554 5555static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5556{ 5557 struct phy_info_arg *results = arg; 5558 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5559 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5560 struct nlattr *nl_rule; 5561 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5562 int rem_rule; 5563 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5564 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5565 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5566 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5567 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5568 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5569 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5570 }; 5571 5572 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5573 genlmsg_attrlen(gnlh, 0), NULL); 5574 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5575 !tb_msg[NL80211_ATTR_REG_RULES]) { 5576 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5577 "available"); 5578 return NL_SKIP; 5579 } 5580 5581 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5582 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5583 5584 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5585 { 5586 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5587 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5588 nl80211_reg_rule_ht40(tb_rule, results); 5589 } 5590 5591 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5592 { 5593 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5594 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5595 nl80211_reg_rule_sec(tb_rule, results); 5596 } 5597 5598 return NL_SKIP; 5599} 5600 5601 5602static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5603 struct phy_info_arg *results) 5604{ 5605 struct nl_msg *msg; 5606 5607 msg = nlmsg_alloc(); 5608 if (!msg) 5609 return -ENOMEM; 5610 5611 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 5612 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 5613} 5614 5615 5616static struct hostapd_hw_modes * 5617wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 5618{ 5619 u32 feat; 5620 struct i802_bss *bss = priv; 5621 struct wpa_driver_nl80211_data *drv = bss->drv; 5622 struct nl_msg *msg; 5623 struct phy_info_arg result = { 5624 .num_modes = num_modes, 5625 .modes = NULL, 5626 .last_mode = -1, 5627 }; 5628 5629 *num_modes = 0; 5630 *flags = 0; 5631 5632 msg = nlmsg_alloc(); 5633 if (!msg) 5634 return NULL; 5635 5636 feat = get_nl80211_protocol_features(drv); 5637 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 5638 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 5639 else 5640 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 5641 5642 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 5643 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5644 5645 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 5646 nl80211_set_ht40_flags(drv, &result); 5647 return wpa_driver_nl80211_postprocess_modes(result.modes, 5648 num_modes); 5649 } 5650 msg = NULL; 5651 nla_put_failure: 5652 nlmsg_free(msg); 5653 return NULL; 5654} 5655 5656 5657static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 5658 const void *data, size_t len, 5659 int encrypt, int noack) 5660{ 5661 __u8 rtap_hdr[] = { 5662 0x00, 0x00, /* radiotap version */ 5663 0x0e, 0x00, /* radiotap length */ 5664 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 5665 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 5666 0x00, /* padding */ 5667 0x00, 0x00, /* RX and TX flags to indicate that */ 5668 0x00, 0x00, /* this is the injected frame directly */ 5669 }; 5670 struct iovec iov[2] = { 5671 { 5672 .iov_base = &rtap_hdr, 5673 .iov_len = sizeof(rtap_hdr), 5674 }, 5675 { 5676 .iov_base = (void *) data, 5677 .iov_len = len, 5678 } 5679 }; 5680 struct msghdr msg = { 5681 .msg_name = NULL, 5682 .msg_namelen = 0, 5683 .msg_iov = iov, 5684 .msg_iovlen = 2, 5685 .msg_control = NULL, 5686 .msg_controllen = 0, 5687 .msg_flags = 0, 5688 }; 5689 int res; 5690 u16 txflags = 0; 5691 5692 if (encrypt) 5693 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 5694 5695 if (drv->monitor_sock < 0) { 5696 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 5697 "for %s", __func__); 5698 return -1; 5699 } 5700 5701 if (noack) 5702 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 5703 WPA_PUT_LE16(&rtap_hdr[12], txflags); 5704 5705 res = sendmsg(drv->monitor_sock, &msg, 0); 5706 if (res < 0) { 5707 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 5708 return -1; 5709 } 5710 return 0; 5711} 5712 5713 5714static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 5715 const void *data, size_t len, 5716 int encrypt, int noack, 5717 unsigned int freq, int no_cck, 5718 int offchanok, unsigned int wait_time) 5719{ 5720 struct wpa_driver_nl80211_data *drv = bss->drv; 5721 u64 cookie; 5722 5723 if (freq == 0) 5724 freq = bss->freq; 5725 5726 if (drv->use_monitor) 5727 return wpa_driver_nl80211_send_mntr(drv, data, len, 5728 encrypt, noack); 5729 5730 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 5731 &cookie, no_cck, noack, offchanok); 5732} 5733 5734 5735static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 5736 size_t data_len, int noack, 5737 unsigned int freq, int no_cck, 5738 int offchanok, 5739 unsigned int wait_time) 5740{ 5741 struct wpa_driver_nl80211_data *drv = bss->drv; 5742 struct ieee80211_mgmt *mgmt; 5743 int encrypt = 1; 5744 u16 fc; 5745 5746 mgmt = (struct ieee80211_mgmt *) data; 5747 fc = le_to_host16(mgmt->frame_control); 5748 5749 if (is_sta_interface(drv->nlmode) && 5750 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5751 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 5752 /* 5753 * The use of last_mgmt_freq is a bit of a hack, 5754 * but it works due to the single-threaded nature 5755 * of wpa_supplicant. 5756 */ 5757 if (freq == 0) 5758 freq = drv->last_mgmt_freq; 5759 return nl80211_send_frame_cmd(bss, freq, 0, 5760 data, data_len, NULL, 1, noack, 5761 1); 5762 } 5763 5764 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 5765 if (freq == 0) 5766 freq = bss->freq; 5767 return nl80211_send_frame_cmd(bss, freq, 5768 (int) freq == bss->freq ? 0 : 5769 wait_time, 5770 data, data_len, 5771 &drv->send_action_cookie, 5772 no_cck, noack, offchanok); 5773 } 5774 5775 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5776 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 5777 /* 5778 * Only one of the authentication frame types is encrypted. 5779 * In order for static WEP encryption to work properly (i.e., 5780 * to not encrypt the frame), we need to tell mac80211 about 5781 * the frames that must not be encrypted. 5782 */ 5783 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 5784 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 5785 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 5786 encrypt = 0; 5787 } 5788 5789 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 5790 noack, freq, no_cck, offchanok, 5791 wait_time); 5792} 5793 5794 5795static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 5796 int slot, int ht_opmode, int ap_isolate, 5797 int *basic_rates) 5798{ 5799 struct wpa_driver_nl80211_data *drv = bss->drv; 5800 struct nl_msg *msg; 5801 5802 msg = nlmsg_alloc(); 5803 if (!msg) 5804 return -ENOMEM; 5805 5806 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 5807 5808 if (cts >= 0) 5809 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 5810 if (preamble >= 0) 5811 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 5812 if (slot >= 0) 5813 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 5814 if (ht_opmode >= 0) 5815 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 5816 if (ap_isolate >= 0) 5817 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 5818 5819 if (basic_rates) { 5820 u8 rates[NL80211_MAX_SUPP_RATES]; 5821 u8 rates_len = 0; 5822 int i; 5823 5824 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 5825 i++) 5826 rates[rates_len++] = basic_rates[i] / 5; 5827 5828 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 5829 } 5830 5831 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 5832 5833 return send_and_recv_msgs(drv, msg, NULL, NULL); 5834 nla_put_failure: 5835 nlmsg_free(msg); 5836 return -ENOBUFS; 5837} 5838 5839 5840static int wpa_driver_nl80211_set_ap(void *priv, 5841 struct wpa_driver_ap_params *params) 5842{ 5843 struct i802_bss *bss = priv; 5844 struct wpa_driver_nl80211_data *drv = bss->drv; 5845 struct nl_msg *msg; 5846 u8 cmd = NL80211_CMD_NEW_BEACON; 5847 int ret; 5848 int beacon_set; 5849 int ifindex = if_nametoindex(bss->ifname); 5850 int num_suites; 5851 u32 suites[10]; 5852 u32 ver; 5853 5854 beacon_set = bss->beacon_set; 5855 5856 msg = nlmsg_alloc(); 5857 if (!msg) 5858 return -ENOMEM; 5859 5860 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 5861 beacon_set); 5862 if (beacon_set) 5863 cmd = NL80211_CMD_SET_BEACON; 5864 5865 nl80211_cmd(drv, msg, 0, cmd); 5866 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 5867 params->head, params->head_len); 5868 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 5869 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 5870 params->tail, params->tail_len); 5871 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 5872 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 5873 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5874 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 5875 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 5876 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 5877 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 5878 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 5879 params->ssid, params->ssid_len); 5880 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5881 params->ssid); 5882 if (params->proberesp && params->proberesp_len) { 5883 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 5884 params->proberesp, params->proberesp_len); 5885 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 5886 params->proberesp); 5887 } 5888 switch (params->hide_ssid) { 5889 case NO_SSID_HIDING: 5890 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 5891 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5892 NL80211_HIDDEN_SSID_NOT_IN_USE); 5893 break; 5894 case HIDDEN_SSID_ZERO_LEN: 5895 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 5896 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5897 NL80211_HIDDEN_SSID_ZERO_LEN); 5898 break; 5899 case HIDDEN_SSID_ZERO_CONTENTS: 5900 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 5901 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5902 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 5903 break; 5904 } 5905 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 5906 if (params->privacy) 5907 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5908 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 5909 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 5910 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 5911 /* Leave out the attribute */ 5912 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 5913 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 5914 NL80211_AUTHTYPE_SHARED_KEY); 5915 else 5916 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 5917 NL80211_AUTHTYPE_OPEN_SYSTEM); 5918 5919 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 5920 ver = 0; 5921 if (params->wpa_version & WPA_PROTO_WPA) 5922 ver |= NL80211_WPA_VERSION_1; 5923 if (params->wpa_version & WPA_PROTO_RSN) 5924 ver |= NL80211_WPA_VERSION_2; 5925 if (ver) 5926 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 5927 5928 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 5929 params->key_mgmt_suites); 5930 num_suites = 0; 5931 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 5932 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 5933 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 5934 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 5935 if (num_suites) { 5936 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 5937 num_suites * sizeof(u32), suites); 5938 } 5939 5940 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 5941 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 5942 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 5943 5944 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 5945 params->pairwise_ciphers); 5946 num_suites = 0; 5947 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 5948 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5949 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 5950 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5951 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 5952 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5953 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 5954 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5955 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 5956 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5957 if (num_suites) { 5958 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 5959 num_suites * sizeof(u32), suites); 5960 } 5961 5962 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 5963 params->group_cipher); 5964 switch (params->group_cipher) { 5965 case WPA_CIPHER_CCMP: 5966 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5967 WLAN_CIPHER_SUITE_CCMP); 5968 break; 5969 case WPA_CIPHER_GCMP: 5970 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5971 WLAN_CIPHER_SUITE_GCMP); 5972 break; 5973 case WPA_CIPHER_TKIP: 5974 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5975 WLAN_CIPHER_SUITE_TKIP); 5976 break; 5977 case WPA_CIPHER_WEP104: 5978 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5979 WLAN_CIPHER_SUITE_WEP104); 5980 break; 5981 case WPA_CIPHER_WEP40: 5982 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5983 WLAN_CIPHER_SUITE_WEP40); 5984 break; 5985 } 5986 5987 if (params->beacon_ies) { 5988 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 5989 params->beacon_ies); 5990 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 5991 wpabuf_head(params->beacon_ies)); 5992 } 5993 if (params->proberesp_ies) { 5994 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 5995 params->proberesp_ies); 5996 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 5997 wpabuf_len(params->proberesp_ies), 5998 wpabuf_head(params->proberesp_ies)); 5999 } 6000 if (params->assocresp_ies) { 6001 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6002 params->assocresp_ies); 6003 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6004 wpabuf_len(params->assocresp_ies), 6005 wpabuf_head(params->assocresp_ies)); 6006 } 6007 6008 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6009 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6010 params->ap_max_inactivity); 6011 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6012 params->ap_max_inactivity); 6013 } 6014 6015 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6016 if (ret) { 6017 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6018 ret, strerror(-ret)); 6019 } else { 6020 bss->beacon_set = 1; 6021 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6022 params->short_slot_time, params->ht_opmode, 6023 params->isolate, params->basic_rates); 6024 } 6025 return ret; 6026 nla_put_failure: 6027 nlmsg_free(msg); 6028 return -ENOBUFS; 6029} 6030 6031 6032static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6033 struct hostapd_freq_params *freq) 6034{ 6035 struct wpa_driver_nl80211_data *drv = bss->drv; 6036 struct nl_msg *msg; 6037 int ret; 6038 6039 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6040 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6041 freq->freq, freq->ht_enabled, freq->vht_enabled, 6042 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6043 msg = nlmsg_alloc(); 6044 if (!msg) 6045 return -1; 6046 6047 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6048 6049 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6050 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6051 if (freq->vht_enabled) { 6052 switch (freq->bandwidth) { 6053 case 20: 6054 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6055 NL80211_CHAN_WIDTH_20); 6056 break; 6057 case 40: 6058 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6059 NL80211_CHAN_WIDTH_40); 6060 break; 6061 case 80: 6062 if (freq->center_freq2) 6063 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6064 NL80211_CHAN_WIDTH_80P80); 6065 else 6066 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6067 NL80211_CHAN_WIDTH_80); 6068 break; 6069 case 160: 6070 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6071 NL80211_CHAN_WIDTH_160); 6072 break; 6073 default: 6074 return -1; 6075 } 6076 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6077 if (freq->center_freq2) 6078 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6079 freq->center_freq2); 6080 } else if (freq->ht_enabled) { 6081 switch (freq->sec_channel_offset) { 6082 case -1: 6083 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6084 NL80211_CHAN_HT40MINUS); 6085 break; 6086 case 1: 6087 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6088 NL80211_CHAN_HT40PLUS); 6089 break; 6090 default: 6091 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6092 NL80211_CHAN_HT20); 6093 break; 6094 } 6095 } 6096 6097 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6098 msg = NULL; 6099 if (ret == 0) { 6100 bss->freq = freq->freq; 6101 return 0; 6102 } 6103 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6104 "%d (%s)", freq->freq, ret, strerror(-ret)); 6105nla_put_failure: 6106 nlmsg_free(msg); 6107 return -1; 6108} 6109 6110 6111static u32 sta_flags_nl80211(int flags) 6112{ 6113 u32 f = 0; 6114 6115 if (flags & WPA_STA_AUTHORIZED) 6116 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6117 if (flags & WPA_STA_WMM) 6118 f |= BIT(NL80211_STA_FLAG_WME); 6119 if (flags & WPA_STA_SHORT_PREAMBLE) 6120 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6121 if (flags & WPA_STA_MFP) 6122 f |= BIT(NL80211_STA_FLAG_MFP); 6123 if (flags & WPA_STA_TDLS_PEER) 6124 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6125 6126 return f; 6127} 6128 6129 6130static int wpa_driver_nl80211_sta_add(void *priv, 6131 struct hostapd_sta_add_params *params) 6132{ 6133 struct i802_bss *bss = priv; 6134 struct wpa_driver_nl80211_data *drv = bss->drv; 6135 struct nl_msg *msg; 6136 struct nl80211_sta_flag_update upd; 6137 int ret = -ENOBUFS; 6138 6139 if ((params->flags & WPA_STA_TDLS_PEER) && 6140 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6141 return -EOPNOTSUPP; 6142 6143 msg = nlmsg_alloc(); 6144 if (!msg) 6145 return -ENOMEM; 6146 6147 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6148 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6149 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6150 NL80211_CMD_NEW_STATION); 6151 6152 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6153 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6154 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6155 params->supp_rates); 6156 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6157 params->supp_rates_len); 6158 if (!params->set) { 6159 if (params->aid) { 6160 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6161 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6162 } else { 6163 /* 6164 * cfg80211 validates that AID is non-zero, so we have 6165 * to make this a non-zero value for the TDLS case where 6166 * a dummy STA entry is used for now. 6167 */ 6168 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6169 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6170 } 6171 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6172 params->listen_interval); 6173 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6174 params->listen_interval); 6175 } 6176 if (params->ht_capabilities) { 6177 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6178 (u8 *) params->ht_capabilities, 6179 sizeof(*params->ht_capabilities)); 6180 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6181 sizeof(*params->ht_capabilities), 6182 params->ht_capabilities); 6183 } 6184 6185 if (params->vht_capabilities) { 6186 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6187 (u8 *) params->vht_capabilities, 6188 sizeof(*params->vht_capabilities)); 6189 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6190 sizeof(*params->vht_capabilities), 6191 params->vht_capabilities); 6192 } 6193 6194 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6195 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6196 6197 if (params->ext_capab) { 6198 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6199 params->ext_capab, params->ext_capab_len); 6200 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6201 params->ext_capab_len, params->ext_capab); 6202 } 6203 6204 os_memset(&upd, 0, sizeof(upd)); 6205 upd.mask = sta_flags_nl80211(params->flags); 6206 upd.set = upd.mask; 6207 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6208 upd.set, upd.mask); 6209 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6210 6211 if (params->flags & WPA_STA_WMM) { 6212 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6213 6214 if (!wme) 6215 goto nla_put_failure; 6216 6217 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6218 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6219 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6220 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6221 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6222 WMM_QOSINFO_STA_SP_MASK); 6223 nla_nest_end(msg, wme); 6224 } 6225 6226 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6227 msg = NULL; 6228 if (ret) 6229 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6230 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6231 strerror(-ret)); 6232 if (ret == -EEXIST) 6233 ret = 0; 6234 nla_put_failure: 6235 nlmsg_free(msg); 6236 return ret; 6237} 6238 6239 6240static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6241{ 6242 struct wpa_driver_nl80211_data *drv = bss->drv; 6243 struct nl_msg *msg; 6244 int ret; 6245 6246 msg = nlmsg_alloc(); 6247 if (!msg) 6248 return -ENOMEM; 6249 6250 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6251 6252 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6253 if_nametoindex(bss->ifname)); 6254 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6255 6256 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6257 if (ret == -ENOENT) 6258 return 0; 6259 return ret; 6260 nla_put_failure: 6261 nlmsg_free(msg); 6262 return -ENOBUFS; 6263} 6264 6265 6266static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6267 int ifidx) 6268{ 6269 struct nl_msg *msg; 6270 6271 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6272 6273 /* stop listening for EAPOL on this interface */ 6274 del_ifidx(drv, ifidx); 6275 6276 msg = nlmsg_alloc(); 6277 if (!msg) 6278 goto nla_put_failure; 6279 6280 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6281 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6282 6283 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6284 return; 6285 msg = NULL; 6286 nla_put_failure: 6287 nlmsg_free(msg); 6288 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6289} 6290 6291 6292static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6293{ 6294 switch (mode) { 6295 case NL80211_IFTYPE_ADHOC: 6296 return "ADHOC"; 6297 case NL80211_IFTYPE_STATION: 6298 return "STATION"; 6299 case NL80211_IFTYPE_AP: 6300 return "AP"; 6301 case NL80211_IFTYPE_MONITOR: 6302 return "MONITOR"; 6303 case NL80211_IFTYPE_P2P_CLIENT: 6304 return "P2P_CLIENT"; 6305 case NL80211_IFTYPE_P2P_GO: 6306 return "P2P_GO"; 6307 default: 6308 return "unknown"; 6309 } 6310} 6311 6312 6313static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6314 const char *ifname, 6315 enum nl80211_iftype iftype, 6316 const u8 *addr, int wds) 6317{ 6318 struct nl_msg *msg; 6319 int ifidx; 6320 int ret = -ENOBUFS; 6321 6322 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6323 iftype, nl80211_iftype_str(iftype)); 6324 6325 msg = nlmsg_alloc(); 6326 if (!msg) 6327 return -1; 6328 6329 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6330 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6331 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6332 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6333 6334 if (iftype == NL80211_IFTYPE_MONITOR) { 6335 struct nlattr *flags; 6336 6337 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6338 if (!flags) 6339 goto nla_put_failure; 6340 6341 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6342 6343 nla_nest_end(msg, flags); 6344 } else if (wds) { 6345 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6346 } 6347 6348 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6349 msg = NULL; 6350 if (ret) { 6351 nla_put_failure: 6352 nlmsg_free(msg); 6353 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6354 ifname, ret, strerror(-ret)); 6355 return ret; 6356 } 6357 6358 ifidx = if_nametoindex(ifname); 6359 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6360 ifname, ifidx); 6361 6362 if (ifidx <= 0) 6363 return -1; 6364 6365 /* start listening for EAPOL on this interface */ 6366 add_ifidx(drv, ifidx); 6367 6368 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6369 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6370 nl80211_remove_iface(drv, ifidx); 6371 return -1; 6372 } 6373 6374 return ifidx; 6375} 6376 6377 6378static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6379 const char *ifname, enum nl80211_iftype iftype, 6380 const u8 *addr, int wds) 6381{ 6382 int ret; 6383 6384 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); 6385 6386 /* if error occurred and interface exists already */ 6387 if (ret == -ENFILE && if_nametoindex(ifname)) { 6388 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6389 6390 /* Try to remove the interface that was already there. */ 6391 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6392 6393 /* Try to create the interface again */ 6394 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6395 wds); 6396 } 6397 6398 if (ret >= 0 && is_p2p_interface(iftype)) 6399 nl80211_disable_11b_rates(drv, ret, 1); 6400 6401 return ret; 6402} 6403 6404 6405static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6406{ 6407 struct ieee80211_hdr *hdr; 6408 u16 fc; 6409 union wpa_event_data event; 6410 6411 hdr = (struct ieee80211_hdr *) buf; 6412 fc = le_to_host16(hdr->frame_control); 6413 6414 os_memset(&event, 0, sizeof(event)); 6415 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6416 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6417 event.tx_status.dst = hdr->addr1; 6418 event.tx_status.data = buf; 6419 event.tx_status.data_len = len; 6420 event.tx_status.ack = ok; 6421 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6422} 6423 6424 6425static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6426 u8 *buf, size_t len) 6427{ 6428 struct ieee80211_hdr *hdr = (void *)buf; 6429 u16 fc; 6430 union wpa_event_data event; 6431 6432 if (len < sizeof(*hdr)) 6433 return; 6434 6435 fc = le_to_host16(hdr->frame_control); 6436 6437 os_memset(&event, 0, sizeof(event)); 6438 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6439 event.rx_from_unknown.addr = hdr->addr2; 6440 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6441 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6442 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6443} 6444 6445 6446static void handle_frame(struct wpa_driver_nl80211_data *drv, 6447 u8 *buf, size_t len, int datarate, int ssi_signal) 6448{ 6449 struct ieee80211_hdr *hdr; 6450 u16 fc; 6451 union wpa_event_data event; 6452 6453 hdr = (struct ieee80211_hdr *) buf; 6454 fc = le_to_host16(hdr->frame_control); 6455 6456 switch (WLAN_FC_GET_TYPE(fc)) { 6457 case WLAN_FC_TYPE_MGMT: 6458 os_memset(&event, 0, sizeof(event)); 6459 event.rx_mgmt.frame = buf; 6460 event.rx_mgmt.frame_len = len; 6461 event.rx_mgmt.datarate = datarate; 6462 event.rx_mgmt.ssi_signal = ssi_signal; 6463 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6464 break; 6465 case WLAN_FC_TYPE_CTRL: 6466 /* can only get here with PS-Poll frames */ 6467 wpa_printf(MSG_DEBUG, "CTRL"); 6468 from_unknown_sta(drv, buf, len); 6469 break; 6470 case WLAN_FC_TYPE_DATA: 6471 from_unknown_sta(drv, buf, len); 6472 break; 6473 } 6474} 6475 6476 6477static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6478{ 6479 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6480 int len; 6481 unsigned char buf[3000]; 6482 struct ieee80211_radiotap_iterator iter; 6483 int ret; 6484 int datarate = 0, ssi_signal = 0; 6485 int injected = 0, failed = 0, rxflags = 0; 6486 6487 len = recv(sock, buf, sizeof(buf), 0); 6488 if (len < 0) { 6489 perror("recv"); 6490 return; 6491 } 6492 6493 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6494 printf("received invalid radiotap frame\n"); 6495 return; 6496 } 6497 6498 while (1) { 6499 ret = ieee80211_radiotap_iterator_next(&iter); 6500 if (ret == -ENOENT) 6501 break; 6502 if (ret) { 6503 printf("received invalid radiotap frame (%d)\n", ret); 6504 return; 6505 } 6506 switch (iter.this_arg_index) { 6507 case IEEE80211_RADIOTAP_FLAGS: 6508 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6509 len -= 4; 6510 break; 6511 case IEEE80211_RADIOTAP_RX_FLAGS: 6512 rxflags = 1; 6513 break; 6514 case IEEE80211_RADIOTAP_TX_FLAGS: 6515 injected = 1; 6516 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6517 IEEE80211_RADIOTAP_F_TX_FAIL; 6518 break; 6519 case IEEE80211_RADIOTAP_DATA_RETRIES: 6520 break; 6521 case IEEE80211_RADIOTAP_CHANNEL: 6522 /* TODO: convert from freq/flags to channel number */ 6523 break; 6524 case IEEE80211_RADIOTAP_RATE: 6525 datarate = *iter.this_arg * 5; 6526 break; 6527 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6528 ssi_signal = (s8) *iter.this_arg; 6529 break; 6530 } 6531 } 6532 6533 if (rxflags && injected) 6534 return; 6535 6536 if (!injected) 6537 handle_frame(drv, buf + iter.max_length, 6538 len - iter.max_length, datarate, ssi_signal); 6539 else 6540 handle_tx_callback(drv->ctx, buf + iter.max_length, 6541 len - iter.max_length, !failed); 6542} 6543 6544 6545/* 6546 * we post-process the filter code later and rewrite 6547 * this to the offset to the last instruction 6548 */ 6549#define PASS 0xFF 6550#define FAIL 0xFE 6551 6552static struct sock_filter msock_filter_insns[] = { 6553 /* 6554 * do a little-endian load of the radiotap length field 6555 */ 6556 /* load lower byte into A */ 6557 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 6558 /* put it into X (== index register) */ 6559 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6560 /* load upper byte into A */ 6561 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 6562 /* left-shift it by 8 */ 6563 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 6564 /* or with X */ 6565 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 6566 /* put result into X */ 6567 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6568 6569 /* 6570 * Allow management frames through, this also gives us those 6571 * management frames that we sent ourselves with status 6572 */ 6573 /* load the lower byte of the IEEE 802.11 frame control field */ 6574 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6575 /* mask off frame type and version */ 6576 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 6577 /* accept frame if it's both 0, fall through otherwise */ 6578 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 6579 6580 /* 6581 * TODO: add a bit to radiotap RX flags that indicates 6582 * that the sending station is not associated, then 6583 * add a filter here that filters on our DA and that flag 6584 * to allow us to deauth frames to that bad station. 6585 * 6586 * For now allow all To DS data frames through. 6587 */ 6588 /* load the IEEE 802.11 frame control field */ 6589 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 6590 /* mask off frame type, version and DS status */ 6591 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 6592 /* accept frame if version 0, type 2 and To DS, fall through otherwise 6593 */ 6594 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 6595 6596#if 0 6597 /* 6598 * drop non-data frames 6599 */ 6600 /* load the lower byte of the frame control field */ 6601 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6602 /* mask off QoS bit */ 6603 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 6604 /* drop non-data frames */ 6605 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 6606#endif 6607 /* load the upper byte of the frame control field */ 6608 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 6609 /* mask off toDS/fromDS */ 6610 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 6611 /* accept WDS frames */ 6612 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 6613 6614 /* 6615 * add header length to index 6616 */ 6617 /* load the lower byte of the frame control field */ 6618 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6619 /* mask off QoS bit */ 6620 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 6621 /* right shift it by 6 to give 0 or 2 */ 6622 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 6623 /* add data frame header length */ 6624 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 6625 /* add index, was start of 802.11 header */ 6626 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 6627 /* move to index, now start of LL header */ 6628 BPF_STMT(BPF_MISC | BPF_TAX, 0), 6629 6630 /* 6631 * Accept empty data frames, we use those for 6632 * polling activity. 6633 */ 6634 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 6635 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 6636 6637 /* 6638 * Accept EAPOL frames 6639 */ 6640 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 6641 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 6642 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 6643 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 6644 6645 /* keep these last two statements or change the code below */ 6646 /* return 0 == "DROP" */ 6647 BPF_STMT(BPF_RET | BPF_K, 0), 6648 /* return ~0 == "keep all" */ 6649 BPF_STMT(BPF_RET | BPF_K, ~0), 6650}; 6651 6652static struct sock_fprog msock_filter = { 6653 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 6654 .filter = msock_filter_insns, 6655}; 6656 6657 6658static int add_monitor_filter(int s) 6659{ 6660 int idx; 6661 6662 /* rewrite all PASS/FAIL jump offsets */ 6663 for (idx = 0; idx < msock_filter.len; idx++) { 6664 struct sock_filter *insn = &msock_filter_insns[idx]; 6665 6666 if (BPF_CLASS(insn->code) == BPF_JMP) { 6667 if (insn->code == (BPF_JMP|BPF_JA)) { 6668 if (insn->k == PASS) 6669 insn->k = msock_filter.len - idx - 2; 6670 else if (insn->k == FAIL) 6671 insn->k = msock_filter.len - idx - 3; 6672 } 6673 6674 if (insn->jt == PASS) 6675 insn->jt = msock_filter.len - idx - 2; 6676 else if (insn->jt == FAIL) 6677 insn->jt = msock_filter.len - idx - 3; 6678 6679 if (insn->jf == PASS) 6680 insn->jf = msock_filter.len - idx - 2; 6681 else if (insn->jf == FAIL) 6682 insn->jf = msock_filter.len - idx - 3; 6683 } 6684 } 6685 6686 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 6687 &msock_filter, sizeof(msock_filter))) { 6688 perror("SO_ATTACH_FILTER"); 6689 return -1; 6690 } 6691 6692 return 0; 6693} 6694 6695 6696static void nl80211_remove_monitor_interface( 6697 struct wpa_driver_nl80211_data *drv) 6698{ 6699 drv->monitor_refcount--; 6700 if (drv->monitor_refcount > 0) 6701 return; 6702 6703 if (drv->monitor_ifidx >= 0) { 6704 nl80211_remove_iface(drv, drv->monitor_ifidx); 6705 drv->monitor_ifidx = -1; 6706 } 6707 if (drv->monitor_sock >= 0) { 6708 eloop_unregister_read_sock(drv->monitor_sock); 6709 close(drv->monitor_sock); 6710 drv->monitor_sock = -1; 6711 } 6712} 6713 6714 6715static int 6716nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 6717{ 6718 char buf[IFNAMSIZ]; 6719 struct sockaddr_ll ll; 6720 int optval; 6721 socklen_t optlen; 6722 6723 if (drv->monitor_ifidx >= 0) { 6724 drv->monitor_refcount++; 6725 return 0; 6726 } 6727 6728 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 6729 /* 6730 * P2P interface name is of the format p2p-%s-%d. For monitor 6731 * interface name corresponding to P2P GO, replace "p2p-" with 6732 * "mon-" to retain the same interface name length and to 6733 * indicate that it is a monitor interface. 6734 */ 6735 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 6736 } else { 6737 /* Non-P2P interface with AP functionality. */ 6738 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 6739 } 6740 6741 buf[IFNAMSIZ - 1] = '\0'; 6742 6743 drv->monitor_ifidx = 6744 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 6745 0); 6746 6747 if (drv->monitor_ifidx == -EOPNOTSUPP) { 6748 /* 6749 * This is backward compatibility for a few versions of 6750 * the kernel only that didn't advertise the right 6751 * attributes for the only driver that then supported 6752 * AP mode w/o monitor -- ath6kl. 6753 */ 6754 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 6755 "monitor interface type - try to run without it"); 6756 drv->device_ap_sme = 1; 6757 } 6758 6759 if (drv->monitor_ifidx < 0) 6760 return -1; 6761 6762 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 6763 goto error; 6764 6765 memset(&ll, 0, sizeof(ll)); 6766 ll.sll_family = AF_PACKET; 6767 ll.sll_ifindex = drv->monitor_ifidx; 6768 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 6769 if (drv->monitor_sock < 0) { 6770 perror("socket[PF_PACKET,SOCK_RAW]"); 6771 goto error; 6772 } 6773 6774 if (add_monitor_filter(drv->monitor_sock)) { 6775 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 6776 "interface; do filtering in user space"); 6777 /* This works, but will cost in performance. */ 6778 } 6779 6780 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 6781 perror("monitor socket bind"); 6782 goto error; 6783 } 6784 6785 optlen = sizeof(optval); 6786 optval = 20; 6787 if (setsockopt 6788 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 6789 perror("Failed to set socket priority"); 6790 goto error; 6791 } 6792 6793 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 6794 drv, NULL)) { 6795 printf("Could not register monitor read socket\n"); 6796 goto error; 6797 } 6798 6799 return 0; 6800 error: 6801 nl80211_remove_monitor_interface(drv); 6802 return -1; 6803} 6804 6805 6806static int nl80211_setup_ap(struct i802_bss *bss) 6807{ 6808 struct wpa_driver_nl80211_data *drv = bss->drv; 6809 6810 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 6811 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 6812 6813 /* 6814 * Disable Probe Request reporting unless we need it in this way for 6815 * devices that include the AP SME, in the other case (unless using 6816 * monitor iface) we'll get it through the nl_mgmt socket instead. 6817 */ 6818 if (!drv->device_ap_sme) 6819 wpa_driver_nl80211_probe_req_report(bss, 0); 6820 6821 if (!drv->device_ap_sme && !drv->use_monitor) 6822 if (nl80211_mgmt_subscribe_ap(bss)) 6823 return -1; 6824 6825 if (drv->device_ap_sme && !drv->use_monitor) 6826 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6827 return -1; 6828 6829 if (!drv->device_ap_sme && drv->use_monitor && 6830 nl80211_create_monitor_interface(drv) && 6831 !drv->device_ap_sme) 6832 return -1; 6833 6834#ifdef ANDROID_P2P 6835 if (drv->device_ap_sme && drv->use_monitor) 6836 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6837 return -1; 6838 6839 if (drv->use_monitor && 6840 nl80211_create_monitor_interface(drv)) 6841 return -1; 6842#endif 6843 6844 if (drv->device_ap_sme && 6845 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 6846 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 6847 "Probe Request frame reporting in AP mode"); 6848 /* Try to survive without this */ 6849 } 6850 6851 return 0; 6852} 6853 6854 6855static void nl80211_teardown_ap(struct i802_bss *bss) 6856{ 6857 struct wpa_driver_nl80211_data *drv = bss->drv; 6858 6859 if (drv->device_ap_sme) { 6860 wpa_driver_nl80211_probe_req_report(bss, 0); 6861 if (!drv->use_monitor) 6862 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 6863 } else if (drv->use_monitor) 6864 nl80211_remove_monitor_interface(drv); 6865 else 6866 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 6867 6868 bss->beacon_set = 0; 6869} 6870 6871 6872static int nl80211_send_eapol_data(struct i802_bss *bss, 6873 const u8 *addr, const u8 *data, 6874 size_t data_len) 6875{ 6876 struct sockaddr_ll ll; 6877 int ret; 6878 6879 if (bss->drv->eapol_tx_sock < 0) { 6880 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 6881 return -1; 6882 } 6883 6884 os_memset(&ll, 0, sizeof(ll)); 6885 ll.sll_family = AF_PACKET; 6886 ll.sll_ifindex = bss->ifindex; 6887 ll.sll_protocol = htons(ETH_P_PAE); 6888 ll.sll_halen = ETH_ALEN; 6889 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 6890 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 6891 (struct sockaddr *) &ll, sizeof(ll)); 6892 if (ret < 0) 6893 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 6894 strerror(errno)); 6895 6896 return ret; 6897} 6898 6899 6900static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 6901 6902static int wpa_driver_nl80211_hapd_send_eapol( 6903 void *priv, const u8 *addr, const u8 *data, 6904 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 6905{ 6906 struct i802_bss *bss = priv; 6907 struct wpa_driver_nl80211_data *drv = bss->drv; 6908 struct ieee80211_hdr *hdr; 6909 size_t len; 6910 u8 *pos; 6911 int res; 6912 int qos = flags & WPA_STA_WMM; 6913#ifndef ANDROID_P2P 6914 if (drv->device_ap_sme || !drv->use_monitor) 6915#else 6916 if (drv->device_ap_sme && !drv->use_monitor) 6917#endif 6918 return nl80211_send_eapol_data(bss, addr, data, data_len); 6919 6920 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 6921 data_len; 6922 hdr = os_zalloc(len); 6923 if (hdr == NULL) { 6924 printf("malloc() failed for i802_send_data(len=%lu)\n", 6925 (unsigned long) len); 6926 return -1; 6927 } 6928 6929 hdr->frame_control = 6930 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 6931 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 6932 if (encrypt) 6933 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 6934 if (qos) { 6935 hdr->frame_control |= 6936 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 6937 } 6938 6939 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 6940 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 6941 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 6942 pos = (u8 *) (hdr + 1); 6943 6944 if (qos) { 6945 /* Set highest priority in QoS header */ 6946 pos[0] = 7; 6947 pos[1] = 0; 6948 pos += 2; 6949 } 6950 6951 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 6952 pos += sizeof(rfc1042_header); 6953 WPA_PUT_BE16(pos, ETH_P_PAE); 6954 pos += 2; 6955 memcpy(pos, data, data_len); 6956 6957 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 6958 0, 0, 0, 0); 6959 if (res < 0) { 6960 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 6961 "failed: %d (%s)", 6962 (unsigned long) len, errno, strerror(errno)); 6963 } 6964 os_free(hdr); 6965 6966 return res; 6967} 6968 6969 6970static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 6971 int total_flags, 6972 int flags_or, int flags_and) 6973{ 6974 struct i802_bss *bss = priv; 6975 struct wpa_driver_nl80211_data *drv = bss->drv; 6976 struct nl_msg *msg; 6977 struct nlattr *flags; 6978 struct nl80211_sta_flag_update upd; 6979 6980 msg = nlmsg_alloc(); 6981 if (!msg) 6982 return -ENOMEM; 6983 6984 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 6985 6986 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6987 if_nametoindex(bss->ifname)); 6988 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6989 6990 /* 6991 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 6992 * can be removed eventually. 6993 */ 6994 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 6995 if (!flags) 6996 goto nla_put_failure; 6997 if (total_flags & WPA_STA_AUTHORIZED) 6998 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 6999 7000 if (total_flags & WPA_STA_WMM) 7001 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7002 7003 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7004 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7005 7006 if (total_flags & WPA_STA_MFP) 7007 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7008 7009 if (total_flags & WPA_STA_TDLS_PEER) 7010 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7011 7012 nla_nest_end(msg, flags); 7013 7014 os_memset(&upd, 0, sizeof(upd)); 7015 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7016 upd.set = sta_flags_nl80211(flags_or); 7017 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7018 7019 return send_and_recv_msgs(drv, msg, NULL, NULL); 7020 nla_put_failure: 7021 nlmsg_free(msg); 7022 return -ENOBUFS; 7023} 7024 7025 7026static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7027 struct wpa_driver_associate_params *params) 7028{ 7029 enum nl80211_iftype nlmode, old_mode; 7030 struct hostapd_freq_params freq = { 7031 .freq = params->freq, 7032 }; 7033 7034 if (params->p2p) { 7035 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7036 "group (GO)"); 7037 nlmode = NL80211_IFTYPE_P2P_GO; 7038 } else 7039 nlmode = NL80211_IFTYPE_AP; 7040 7041 old_mode = drv->nlmode; 7042 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7043 nl80211_remove_monitor_interface(drv); 7044 return -1; 7045 } 7046 7047 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7048 if (old_mode != nlmode) 7049 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7050 nl80211_remove_monitor_interface(drv); 7051 return -1; 7052 } 7053 7054 return 0; 7055} 7056 7057 7058static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7059{ 7060 struct nl_msg *msg; 7061 int ret = -1; 7062 7063 msg = nlmsg_alloc(); 7064 if (!msg) 7065 return -1; 7066 7067 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7068 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7069 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7070 msg = NULL; 7071 if (ret) { 7072 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7073 "(%s)", ret, strerror(-ret)); 7074 goto nla_put_failure; 7075 } 7076 7077 ret = 0; 7078 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7079 7080nla_put_failure: 7081 nlmsg_free(msg); 7082 return ret; 7083} 7084 7085 7086static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7087 struct wpa_driver_associate_params *params) 7088{ 7089 struct nl_msg *msg; 7090 int ret = -1; 7091 int count = 0; 7092 7093 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7094 7095 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7096 NL80211_IFTYPE_ADHOC)) { 7097 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7098 "IBSS mode"); 7099 return -1; 7100 } 7101 7102retry: 7103 msg = nlmsg_alloc(); 7104 if (!msg) 7105 return -1; 7106 7107 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7108 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7109 7110 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7111 goto nla_put_failure; 7112 7113 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7114 params->ssid, params->ssid_len); 7115 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7116 params->ssid); 7117 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7118 drv->ssid_len = params->ssid_len; 7119 7120 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7121 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7122 7123 ret = nl80211_set_conn_keys(params, msg); 7124 if (ret) 7125 goto nla_put_failure; 7126 7127 if (params->bssid && params->fixed_bssid) { 7128 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7129 MAC2STR(params->bssid)); 7130 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7131 } 7132 7133 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7134 params->key_mgmt_suite == KEY_MGMT_PSK || 7135 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7136 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7137 wpa_printf(MSG_DEBUG, " * control port"); 7138 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7139 } 7140 7141 if (params->wpa_ie) { 7142 wpa_hexdump(MSG_DEBUG, 7143 " * Extra IEs for Beacon/Probe Response frames", 7144 params->wpa_ie, params->wpa_ie_len); 7145 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7146 params->wpa_ie); 7147 } 7148 7149 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7150 msg = NULL; 7151 if (ret) { 7152 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7153 ret, strerror(-ret)); 7154 count++; 7155 if (ret == -EALREADY && count == 1) { 7156 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7157 "forced leave"); 7158 nl80211_leave_ibss(drv); 7159 nlmsg_free(msg); 7160 goto retry; 7161 } 7162 7163 goto nla_put_failure; 7164 } 7165 ret = 0; 7166 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7167 7168nla_put_failure: 7169 nlmsg_free(msg); 7170 return ret; 7171} 7172 7173 7174static int wpa_driver_nl80211_try_connect( 7175 struct wpa_driver_nl80211_data *drv, 7176 struct wpa_driver_associate_params *params) 7177{ 7178 struct nl_msg *msg; 7179 enum nl80211_auth_type type; 7180 int ret = 0; 7181 int algs; 7182 7183 msg = nlmsg_alloc(); 7184 if (!msg) 7185 return -1; 7186 7187 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7188 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7189 7190 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7191 if (params->bssid) { 7192 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7193 MAC2STR(params->bssid)); 7194 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7195 } 7196 if (params->freq) { 7197 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7198 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7199 } 7200 if (params->bg_scan_period >= 0) { 7201 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7202 params->bg_scan_period); 7203 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7204 params->bg_scan_period); 7205 } 7206 if (params->ssid) { 7207 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7208 params->ssid, params->ssid_len); 7209 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7210 params->ssid); 7211 if (params->ssid_len > sizeof(drv->ssid)) 7212 goto nla_put_failure; 7213 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7214 drv->ssid_len = params->ssid_len; 7215 } 7216 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7217 if (params->wpa_ie) 7218 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7219 params->wpa_ie); 7220 7221 algs = 0; 7222 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7223 algs++; 7224 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7225 algs++; 7226 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7227 algs++; 7228 if (algs > 1) { 7229 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7230 "selection"); 7231 goto skip_auth_type; 7232 } 7233 7234 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7235 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7236 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7237 type = NL80211_AUTHTYPE_SHARED_KEY; 7238 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7239 type = NL80211_AUTHTYPE_NETWORK_EAP; 7240 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7241 type = NL80211_AUTHTYPE_FT; 7242 else 7243 goto nla_put_failure; 7244 7245 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7246 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7247 7248skip_auth_type: 7249 if (params->wpa_proto) { 7250 enum nl80211_wpa_versions ver = 0; 7251 7252 if (params->wpa_proto & WPA_PROTO_WPA) 7253 ver |= NL80211_WPA_VERSION_1; 7254 if (params->wpa_proto & WPA_PROTO_RSN) 7255 ver |= NL80211_WPA_VERSION_2; 7256 7257 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7258 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7259 } 7260 7261 if (params->pairwise_suite != CIPHER_NONE) { 7262 int cipher; 7263 7264 switch (params->pairwise_suite) { 7265 case CIPHER_SMS4: 7266 cipher = WLAN_CIPHER_SUITE_SMS4; 7267 break; 7268 case CIPHER_WEP40: 7269 cipher = WLAN_CIPHER_SUITE_WEP40; 7270 break; 7271 case CIPHER_WEP104: 7272 cipher = WLAN_CIPHER_SUITE_WEP104; 7273 break; 7274 case CIPHER_CCMP: 7275 cipher = WLAN_CIPHER_SUITE_CCMP; 7276 break; 7277 case CIPHER_GCMP: 7278 cipher = WLAN_CIPHER_SUITE_GCMP; 7279 break; 7280 case CIPHER_TKIP: 7281 default: 7282 cipher = WLAN_CIPHER_SUITE_TKIP; 7283 break; 7284 } 7285 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7286 } 7287 7288 if (params->group_suite != CIPHER_NONE) { 7289 int cipher; 7290 7291 switch (params->group_suite) { 7292 case CIPHER_SMS4: 7293 cipher = WLAN_CIPHER_SUITE_SMS4; 7294 break; 7295 case CIPHER_WEP40: 7296 cipher = WLAN_CIPHER_SUITE_WEP40; 7297 break; 7298 case CIPHER_WEP104: 7299 cipher = WLAN_CIPHER_SUITE_WEP104; 7300 break; 7301 case CIPHER_CCMP: 7302 cipher = WLAN_CIPHER_SUITE_CCMP; 7303 break; 7304 case CIPHER_GCMP: 7305 cipher = WLAN_CIPHER_SUITE_GCMP; 7306 break; 7307 case CIPHER_TKIP: 7308 default: 7309 cipher = WLAN_CIPHER_SUITE_TKIP; 7310 break; 7311 } 7312 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7313 } 7314 7315 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7316 params->key_mgmt_suite == KEY_MGMT_PSK || 7317 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7318 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7319 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7320 int mgmt = WLAN_AKM_SUITE_PSK; 7321 7322 switch (params->key_mgmt_suite) { 7323 case KEY_MGMT_CCKM: 7324 mgmt = WLAN_AKM_SUITE_CCKM; 7325 break; 7326 case KEY_MGMT_802_1X: 7327 mgmt = WLAN_AKM_SUITE_8021X; 7328 break; 7329 case KEY_MGMT_FT_802_1X: 7330 mgmt = WLAN_AKM_SUITE_FT_8021X; 7331 break; 7332 case KEY_MGMT_FT_PSK: 7333 mgmt = WLAN_AKM_SUITE_FT_PSK; 7334 break; 7335 case KEY_MGMT_PSK: 7336 default: 7337 mgmt = WLAN_AKM_SUITE_PSK; 7338 break; 7339 } 7340 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7341 } 7342 7343#ifdef CONFIG_IEEE80211W 7344 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7345 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7346#endif /* CONFIG_IEEE80211W */ 7347 7348 if (params->disable_ht) 7349 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7350 7351 if (params->htcaps && params->htcaps_mask) { 7352 int sz = sizeof(struct ieee80211_ht_capabilities); 7353 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7354 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7355 params->htcaps_mask); 7356 } 7357 7358#ifdef CONFIG_VHT_OVERRIDES 7359 if (params->disable_vht) { 7360 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7361 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7362 } 7363 7364 if (params->vhtcaps && params->vhtcaps_mask) { 7365 int sz = sizeof(struct ieee80211_vht_capabilities); 7366 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7367 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7368 params->vhtcaps_mask); 7369 } 7370#endif /* CONFIG_VHT_OVERRIDES */ 7371 7372 ret = nl80211_set_conn_keys(params, msg); 7373 if (ret) 7374 goto nla_put_failure; 7375 7376 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7377 msg = NULL; 7378 if (ret) { 7379 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7380 "(%s)", ret, strerror(-ret)); 7381 goto nla_put_failure; 7382 } 7383 ret = 0; 7384 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7385 7386nla_put_failure: 7387 nlmsg_free(msg); 7388 return ret; 7389 7390} 7391 7392 7393static int wpa_driver_nl80211_connect( 7394 struct wpa_driver_nl80211_data *drv, 7395 struct wpa_driver_associate_params *params) 7396{ 7397 int ret = wpa_driver_nl80211_try_connect(drv, params); 7398 if (ret == -EALREADY) { 7399 /* 7400 * cfg80211 does not currently accept new connections if 7401 * we are already connected. As a workaround, force 7402 * disconnection and try again. 7403 */ 7404 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7405 "disconnecting before reassociation " 7406 "attempt"); 7407 if (wpa_driver_nl80211_disconnect( 7408 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7409 return -1; 7410 /* Ignore the next local disconnect message. */ 7411 drv->ignore_next_local_disconnect = 1; 7412 ret = wpa_driver_nl80211_try_connect(drv, params); 7413 } 7414 return ret; 7415} 7416 7417 7418static int wpa_driver_nl80211_associate( 7419 void *priv, struct wpa_driver_associate_params *params) 7420{ 7421 struct i802_bss *bss = priv; 7422 struct wpa_driver_nl80211_data *drv = bss->drv; 7423 int ret = -1; 7424 struct nl_msg *msg; 7425 7426 if (params->mode == IEEE80211_MODE_AP) 7427 return wpa_driver_nl80211_ap(drv, params); 7428 7429 if (params->mode == IEEE80211_MODE_IBSS) 7430 return wpa_driver_nl80211_ibss(drv, params); 7431 7432 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7433 enum nl80211_iftype nlmode = params->p2p ? 7434 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7435 7436 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7437 return -1; 7438 return wpa_driver_nl80211_connect(drv, params); 7439 } 7440 7441 drv->associated = 0; 7442 7443 msg = nlmsg_alloc(); 7444 if (!msg) 7445 return -1; 7446 7447 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7448 drv->ifindex); 7449 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7450 7451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7452 if (params->bssid) { 7453 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7454 MAC2STR(params->bssid)); 7455 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7456 } 7457 if (params->freq) { 7458 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7459 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7460 drv->assoc_freq = params->freq; 7461 } else 7462 drv->assoc_freq = 0; 7463 if (params->bg_scan_period >= 0) { 7464 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7465 params->bg_scan_period); 7466 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7467 params->bg_scan_period); 7468 } 7469 if (params->ssid) { 7470 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7471 params->ssid, params->ssid_len); 7472 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7473 params->ssid); 7474 if (params->ssid_len > sizeof(drv->ssid)) 7475 goto nla_put_failure; 7476 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7477 drv->ssid_len = params->ssid_len; 7478 } 7479 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7480 if (params->wpa_ie) 7481 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7482 params->wpa_ie); 7483 7484 if (params->pairwise_suite != CIPHER_NONE) { 7485 int cipher; 7486 7487 switch (params->pairwise_suite) { 7488 case CIPHER_WEP40: 7489 cipher = WLAN_CIPHER_SUITE_WEP40; 7490 break; 7491 case CIPHER_WEP104: 7492 cipher = WLAN_CIPHER_SUITE_WEP104; 7493 break; 7494 case CIPHER_CCMP: 7495 cipher = WLAN_CIPHER_SUITE_CCMP; 7496 break; 7497 case CIPHER_GCMP: 7498 cipher = WLAN_CIPHER_SUITE_GCMP; 7499 break; 7500 case CIPHER_TKIP: 7501 default: 7502 cipher = WLAN_CIPHER_SUITE_TKIP; 7503 break; 7504 } 7505 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7506 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7507 } 7508 7509 if (params->group_suite != CIPHER_NONE) { 7510 int cipher; 7511 7512 switch (params->group_suite) { 7513 case CIPHER_WEP40: 7514 cipher = WLAN_CIPHER_SUITE_WEP40; 7515 break; 7516 case CIPHER_WEP104: 7517 cipher = WLAN_CIPHER_SUITE_WEP104; 7518 break; 7519 case CIPHER_CCMP: 7520 cipher = WLAN_CIPHER_SUITE_CCMP; 7521 break; 7522 case CIPHER_GCMP: 7523 cipher = WLAN_CIPHER_SUITE_GCMP; 7524 break; 7525 case CIPHER_TKIP: 7526 default: 7527 cipher = WLAN_CIPHER_SUITE_TKIP; 7528 break; 7529 } 7530 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7531 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7532 } 7533 7534#ifdef CONFIG_IEEE80211W 7535 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7536 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7537#endif /* CONFIG_IEEE80211W */ 7538 7539 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7540 7541 if (params->prev_bssid) { 7542 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 7543 MAC2STR(params->prev_bssid)); 7544 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 7545 params->prev_bssid); 7546 } 7547 7548 if (params->disable_ht) 7549 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7550 7551 if (params->htcaps && params->htcaps_mask) { 7552 int sz = sizeof(struct ieee80211_ht_capabilities); 7553 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7554 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7555 params->htcaps_mask); 7556 } 7557 7558#ifdef CONFIG_VHT_OVERRIDES 7559 if (params->disable_vht) { 7560 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7561 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7562 } 7563 7564 if (params->vhtcaps && params->vhtcaps_mask) { 7565 int sz = sizeof(struct ieee80211_vht_capabilities); 7566 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7567 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7568 params->vhtcaps_mask); 7569 } 7570#endif /* CONFIG_VHT_OVERRIDES */ 7571 7572 if (params->p2p) 7573 wpa_printf(MSG_DEBUG, " * P2P group"); 7574 7575 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7576 msg = NULL; 7577 if (ret) { 7578 wpa_dbg(drv->ctx, MSG_DEBUG, 7579 "nl80211: MLME command failed (assoc): ret=%d (%s)", 7580 ret, strerror(-ret)); 7581 nl80211_dump_scan(drv); 7582 goto nla_put_failure; 7583 } 7584 ret = 0; 7585 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 7586 "successfully"); 7587 7588nla_put_failure: 7589 nlmsg_free(msg); 7590 return ret; 7591} 7592 7593 7594static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 7595 int ifindex, enum nl80211_iftype mode) 7596{ 7597 struct nl_msg *msg; 7598 int ret = -ENOBUFS; 7599 7600 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 7601 ifindex, mode, nl80211_iftype_str(mode)); 7602 7603 msg = nlmsg_alloc(); 7604 if (!msg) 7605 return -ENOMEM; 7606 7607 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 7608 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7609 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 7610 7611 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7612 msg = NULL; 7613 if (!ret) 7614 return 0; 7615nla_put_failure: 7616 nlmsg_free(msg); 7617 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 7618 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 7619 return ret; 7620} 7621 7622 7623static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 7624 enum nl80211_iftype nlmode) 7625{ 7626 struct wpa_driver_nl80211_data *drv = bss->drv; 7627 int ret = -1; 7628 int i; 7629 int was_ap = is_ap_interface(drv->nlmode); 7630 int res; 7631 7632 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 7633 if (res == 0) { 7634 drv->nlmode = nlmode; 7635 ret = 0; 7636 goto done; 7637 } 7638 7639 if (res == -ENODEV) 7640 return -1; 7641 7642 if (nlmode == drv->nlmode) { 7643 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 7644 "requested mode - ignore error"); 7645 ret = 0; 7646 goto done; /* Already in the requested mode */ 7647 } 7648 7649 /* mac80211 doesn't allow mode changes while the device is up, so 7650 * take the device down, try to set the mode again, and bring the 7651 * device back up. 7652 */ 7653 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 7654 "interface down"); 7655 for (i = 0; i < 10; i++) { 7656 res = linux_set_iface_flags(drv->global->ioctl_sock, 7657 bss->ifname, 0); 7658 if (res == -EACCES || res == -ENODEV) 7659 break; 7660 if (res == 0) { 7661 /* Try to set the mode again while the interface is 7662 * down */ 7663 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 7664 if (ret == -EACCES) 7665 break; 7666 res = linux_set_iface_flags(drv->global->ioctl_sock, 7667 bss->ifname, 1); 7668 if (res && !ret) 7669 ret = -1; 7670 else if (ret != -EBUSY) 7671 break; 7672 } else 7673 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 7674 "interface down"); 7675 os_sleep(0, 100000); 7676 } 7677 7678 if (!ret) { 7679 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 7680 "interface is down"); 7681 drv->nlmode = nlmode; 7682 drv->ignore_if_down_event = 1; 7683 } 7684 7685done: 7686 if (ret) { 7687 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 7688 "from %d failed", nlmode, drv->nlmode); 7689 return ret; 7690 } 7691 7692 if (is_p2p_interface(nlmode)) 7693 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 7694 else if (drv->disabled_11b_rates) 7695 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 7696 7697 if (is_ap_interface(nlmode)) { 7698 nl80211_mgmt_unsubscribe(bss, "start AP"); 7699 /* Setup additional AP mode functionality if needed */ 7700 if (nl80211_setup_ap(bss)) 7701 return -1; 7702 } else if (was_ap) { 7703 /* Remove additional AP mode functionality */ 7704 nl80211_teardown_ap(bss); 7705 } else { 7706 nl80211_mgmt_unsubscribe(bss, "mode change"); 7707 } 7708 7709 if (!bss->in_deinit && !is_ap_interface(nlmode) && 7710 nl80211_mgmt_subscribe_non_ap(bss) < 0) 7711 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 7712 "frame processing - ignore for now"); 7713 7714 return 0; 7715} 7716 7717 7718static int wpa_driver_nl80211_get_capa(void *priv, 7719 struct wpa_driver_capa *capa) 7720{ 7721 struct i802_bss *bss = priv; 7722 struct wpa_driver_nl80211_data *drv = bss->drv; 7723 if (!drv->has_capability) 7724 return -1; 7725 os_memcpy(capa, &drv->capa, sizeof(*capa)); 7726 if (drv->extended_capa && drv->extended_capa_mask) { 7727 capa->extended_capa = drv->extended_capa; 7728 capa->extended_capa_mask = drv->extended_capa_mask; 7729 capa->extended_capa_len = drv->extended_capa_len; 7730 } 7731 return 0; 7732} 7733 7734 7735static int wpa_driver_nl80211_set_operstate(void *priv, int state) 7736{ 7737 struct i802_bss *bss = priv; 7738 struct wpa_driver_nl80211_data *drv = bss->drv; 7739 7740 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 7741 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 7742 drv->operstate = state; 7743 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 7744 state ? IF_OPER_UP : IF_OPER_DORMANT); 7745} 7746 7747 7748static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 7749{ 7750 struct i802_bss *bss = priv; 7751 struct wpa_driver_nl80211_data *drv = bss->drv; 7752 struct nl_msg *msg; 7753 struct nl80211_sta_flag_update upd; 7754 7755 msg = nlmsg_alloc(); 7756 if (!msg) 7757 return -ENOMEM; 7758 7759 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7760 7761 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7762 if_nametoindex(bss->ifname)); 7763 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 7764 7765 os_memset(&upd, 0, sizeof(upd)); 7766 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 7767 if (authorized) 7768 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 7769 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7770 7771 return send_and_recv_msgs(drv, msg, NULL, NULL); 7772 nla_put_failure: 7773 nlmsg_free(msg); 7774 return -ENOBUFS; 7775} 7776 7777 7778/* Set kernel driver on given frequency (MHz) */ 7779static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 7780{ 7781 struct i802_bss *bss = priv; 7782 return wpa_driver_nl80211_set_freq(bss, freq); 7783} 7784 7785 7786#if defined(HOSTAPD) || defined(CONFIG_AP) 7787 7788static inline int min_int(int a, int b) 7789{ 7790 if (a < b) 7791 return a; 7792 return b; 7793} 7794 7795 7796static int get_key_handler(struct nl_msg *msg, void *arg) 7797{ 7798 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7799 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7800 7801 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7802 genlmsg_attrlen(gnlh, 0), NULL); 7803 7804 /* 7805 * TODO: validate the key index and mac address! 7806 * Otherwise, there's a race condition as soon as 7807 * the kernel starts sending key notifications. 7808 */ 7809 7810 if (tb[NL80211_ATTR_KEY_SEQ]) 7811 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 7812 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 7813 return NL_SKIP; 7814} 7815 7816 7817static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 7818 int idx, u8 *seq) 7819{ 7820 struct i802_bss *bss = priv; 7821 struct wpa_driver_nl80211_data *drv = bss->drv; 7822 struct nl_msg *msg; 7823 7824 msg = nlmsg_alloc(); 7825 if (!msg) 7826 return -ENOMEM; 7827 7828 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 7829 7830 if (addr) 7831 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7832 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 7833 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 7834 7835 memset(seq, 0, 6); 7836 7837 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 7838 nla_put_failure: 7839 nlmsg_free(msg); 7840 return -ENOBUFS; 7841} 7842 7843 7844static int i802_set_rts(void *priv, int rts) 7845{ 7846 struct i802_bss *bss = priv; 7847 struct wpa_driver_nl80211_data *drv = bss->drv; 7848 struct nl_msg *msg; 7849 int ret = -ENOBUFS; 7850 u32 val; 7851 7852 msg = nlmsg_alloc(); 7853 if (!msg) 7854 return -ENOMEM; 7855 7856 if (rts >= 2347) 7857 val = (u32) -1; 7858 else 7859 val = rts; 7860 7861 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7862 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7863 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 7864 7865 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7866 msg = NULL; 7867 if (!ret) 7868 return 0; 7869nla_put_failure: 7870 nlmsg_free(msg); 7871 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 7872 "%d (%s)", rts, ret, strerror(-ret)); 7873 return ret; 7874} 7875 7876 7877static int i802_set_frag(void *priv, int frag) 7878{ 7879 struct i802_bss *bss = priv; 7880 struct wpa_driver_nl80211_data *drv = bss->drv; 7881 struct nl_msg *msg; 7882 int ret = -ENOBUFS; 7883 u32 val; 7884 7885 msg = nlmsg_alloc(); 7886 if (!msg) 7887 return -ENOMEM; 7888 7889 if (frag >= 2346) 7890 val = (u32) -1; 7891 else 7892 val = frag; 7893 7894 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7895 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7896 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 7897 7898 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7899 msg = NULL; 7900 if (!ret) 7901 return 0; 7902nla_put_failure: 7903 nlmsg_free(msg); 7904 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 7905 "%d: %d (%s)", frag, ret, strerror(-ret)); 7906 return ret; 7907} 7908 7909 7910static int i802_flush(void *priv) 7911{ 7912 struct i802_bss *bss = priv; 7913 struct wpa_driver_nl80211_data *drv = bss->drv; 7914 struct nl_msg *msg; 7915 int res; 7916 7917 msg = nlmsg_alloc(); 7918 if (!msg) 7919 return -1; 7920 7921 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7922 7923 /* 7924 * XXX: FIX! this needs to flush all VLANs too 7925 */ 7926 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7927 if_nametoindex(bss->ifname)); 7928 7929 res = send_and_recv_msgs(drv, msg, NULL, NULL); 7930 if (res) { 7931 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 7932 "(%s)", res, strerror(-res)); 7933 } 7934 return res; 7935 nla_put_failure: 7936 nlmsg_free(msg); 7937 return -ENOBUFS; 7938} 7939 7940#endif /* HOSTAPD || CONFIG_AP */ 7941 7942 7943static int get_sta_handler(struct nl_msg *msg, void *arg) 7944{ 7945 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7946 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7947 struct hostap_sta_driver_data *data = arg; 7948 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 7949 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 7950 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 7951 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 7952 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 7953 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 7954 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 7955 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 7956 }; 7957 7958 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7959 genlmsg_attrlen(gnlh, 0), NULL); 7960 7961 /* 7962 * TODO: validate the interface and mac address! 7963 * Otherwise, there's a race condition as soon as 7964 * the kernel starts sending station notifications. 7965 */ 7966 7967 if (!tb[NL80211_ATTR_STA_INFO]) { 7968 wpa_printf(MSG_DEBUG, "sta stats missing!"); 7969 return NL_SKIP; 7970 } 7971 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 7972 tb[NL80211_ATTR_STA_INFO], 7973 stats_policy)) { 7974 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 7975 return NL_SKIP; 7976 } 7977 7978 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 7979 data->inactive_msec = 7980 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 7981 if (stats[NL80211_STA_INFO_RX_BYTES]) 7982 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 7983 if (stats[NL80211_STA_INFO_TX_BYTES]) 7984 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 7985 if (stats[NL80211_STA_INFO_RX_PACKETS]) 7986 data->rx_packets = 7987 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 7988 if (stats[NL80211_STA_INFO_TX_PACKETS]) 7989 data->tx_packets = 7990 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 7991 if (stats[NL80211_STA_INFO_TX_FAILED]) 7992 data->tx_retry_failed = 7993 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 7994 7995 return NL_SKIP; 7996} 7997 7998static int i802_read_sta_data(struct i802_bss *bss, 7999 struct hostap_sta_driver_data *data, 8000 const u8 *addr) 8001{ 8002 struct wpa_driver_nl80211_data *drv = bss->drv; 8003 struct nl_msg *msg; 8004 8005 os_memset(data, 0, sizeof(*data)); 8006 msg = nlmsg_alloc(); 8007 if (!msg) 8008 return -ENOMEM; 8009 8010 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8011 8012 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8013 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8014 8015 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8016 nla_put_failure: 8017 nlmsg_free(msg); 8018 return -ENOBUFS; 8019} 8020 8021 8022#if defined(HOSTAPD) || defined(CONFIG_AP) 8023 8024static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8025 int cw_min, int cw_max, int burst_time) 8026{ 8027 struct i802_bss *bss = priv; 8028 struct wpa_driver_nl80211_data *drv = bss->drv; 8029 struct nl_msg *msg; 8030 struct nlattr *txq, *params; 8031 8032 msg = nlmsg_alloc(); 8033 if (!msg) 8034 return -1; 8035 8036 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8037 8038 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8039 8040 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8041 if (!txq) 8042 goto nla_put_failure; 8043 8044 /* We are only sending parameters for a single TXQ at a time */ 8045 params = nla_nest_start(msg, 1); 8046 if (!params) 8047 goto nla_put_failure; 8048 8049 switch (queue) { 8050 case 0: 8051 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8052 break; 8053 case 1: 8054 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8055 break; 8056 case 2: 8057 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8058 break; 8059 case 3: 8060 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8061 break; 8062 } 8063 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8064 * 32 usec, so need to convert the value here. */ 8065 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8066 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8067 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8068 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8069 8070 nla_nest_end(msg, params); 8071 8072 nla_nest_end(msg, txq); 8073 8074 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8075 return 0; 8076 msg = NULL; 8077 nla_put_failure: 8078 nlmsg_free(msg); 8079 return -1; 8080} 8081 8082 8083static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8084 const char *ifname, int vlan_id) 8085{ 8086 struct wpa_driver_nl80211_data *drv = bss->drv; 8087 struct nl_msg *msg; 8088 int ret = -ENOBUFS; 8089 8090 msg = nlmsg_alloc(); 8091 if (!msg) 8092 return -ENOMEM; 8093 8094 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8095 8096 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8097 if_nametoindex(bss->ifname)); 8098 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8099 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8100 if_nametoindex(ifname)); 8101 8102 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8103 msg = NULL; 8104 if (ret < 0) { 8105 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8106 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8107 MAC2STR(addr), ifname, vlan_id, ret, 8108 strerror(-ret)); 8109 } 8110 nla_put_failure: 8111 nlmsg_free(msg); 8112 return ret; 8113} 8114 8115 8116static int i802_get_inact_sec(void *priv, const u8 *addr) 8117{ 8118 struct hostap_sta_driver_data data; 8119 int ret; 8120 8121 data.inactive_msec = (unsigned long) -1; 8122 ret = i802_read_sta_data(priv, &data, addr); 8123 if (ret || data.inactive_msec == (unsigned long) -1) 8124 return -1; 8125 return data.inactive_msec / 1000; 8126} 8127 8128 8129static int i802_sta_clear_stats(void *priv, const u8 *addr) 8130{ 8131#if 0 8132 /* TODO */ 8133#endif 8134 return 0; 8135} 8136 8137 8138static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8139 int reason) 8140{ 8141 struct i802_bss *bss = priv; 8142 struct wpa_driver_nl80211_data *drv = bss->drv; 8143 struct ieee80211_mgmt mgmt; 8144 8145 if (drv->device_ap_sme) 8146 return wpa_driver_nl80211_sta_remove(bss, addr); 8147 8148 memset(&mgmt, 0, sizeof(mgmt)); 8149 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8150 WLAN_FC_STYPE_DEAUTH); 8151 memcpy(mgmt.da, addr, ETH_ALEN); 8152 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8153 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8154 mgmt.u.deauth.reason_code = host_to_le16(reason); 8155 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8156 IEEE80211_HDRLEN + 8157 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8158 0); 8159} 8160 8161 8162static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8163 int reason) 8164{ 8165 struct i802_bss *bss = priv; 8166 struct wpa_driver_nl80211_data *drv = bss->drv; 8167 struct ieee80211_mgmt mgmt; 8168 8169 if (drv->device_ap_sme) 8170 return wpa_driver_nl80211_sta_remove(bss, addr); 8171 8172 memset(&mgmt, 0, sizeof(mgmt)); 8173 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8174 WLAN_FC_STYPE_DISASSOC); 8175 memcpy(mgmt.da, addr, ETH_ALEN); 8176 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8177 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8178 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8179 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8180 IEEE80211_HDRLEN + 8181 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8182 0); 8183} 8184 8185#endif /* HOSTAPD || CONFIG_AP */ 8186 8187#ifdef HOSTAPD 8188 8189static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8190{ 8191 int i; 8192 int *old; 8193 8194 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8195 ifidx); 8196 for (i = 0; i < drv->num_if_indices; i++) { 8197 if (drv->if_indices[i] == 0) { 8198 drv->if_indices[i] = ifidx; 8199 return; 8200 } 8201 } 8202 8203 if (drv->if_indices != drv->default_if_indices) 8204 old = drv->if_indices; 8205 else 8206 old = NULL; 8207 8208 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8209 sizeof(int)); 8210 if (!drv->if_indices) { 8211 if (!old) 8212 drv->if_indices = drv->default_if_indices; 8213 else 8214 drv->if_indices = old; 8215 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8216 "interfaces"); 8217 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8218 return; 8219 } else if (!old) 8220 os_memcpy(drv->if_indices, drv->default_if_indices, 8221 sizeof(drv->default_if_indices)); 8222 drv->if_indices[drv->num_if_indices] = ifidx; 8223 drv->num_if_indices++; 8224} 8225 8226 8227static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8228{ 8229 int i; 8230 8231 for (i = 0; i < drv->num_if_indices; i++) { 8232 if (drv->if_indices[i] == ifidx) { 8233 drv->if_indices[i] = 0; 8234 break; 8235 } 8236 } 8237} 8238 8239 8240static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8241{ 8242 int i; 8243 8244 for (i = 0; i < drv->num_if_indices; i++) 8245 if (drv->if_indices[i] == ifidx) 8246 return 1; 8247 8248 return 0; 8249} 8250 8251 8252static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8253 const char *bridge_ifname) 8254{ 8255 struct i802_bss *bss = priv; 8256 struct wpa_driver_nl80211_data *drv = bss->drv; 8257 char name[IFNAMSIZ + 1]; 8258 8259 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8260 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8261 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8262 if (val) { 8263 if (!if_nametoindex(name)) { 8264 if (nl80211_create_iface(drv, name, 8265 NL80211_IFTYPE_AP_VLAN, 8266 bss->addr, 1) < 0) 8267 return -1; 8268 if (bridge_ifname && 8269 linux_br_add_if(drv->global->ioctl_sock, 8270 bridge_ifname, name) < 0) 8271 return -1; 8272 } 8273 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8274 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8275 "interface %s up", name); 8276 } 8277 return i802_set_sta_vlan(priv, addr, name, 0); 8278 } else { 8279 if (bridge_ifname) 8280 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8281 name); 8282 8283 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8284 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8285 name); 8286 } 8287} 8288 8289 8290static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8291{ 8292 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8293 struct sockaddr_ll lladdr; 8294 unsigned char buf[3000]; 8295 int len; 8296 socklen_t fromlen = sizeof(lladdr); 8297 8298 len = recvfrom(sock, buf, sizeof(buf), 0, 8299 (struct sockaddr *)&lladdr, &fromlen); 8300 if (len < 0) { 8301 perror("recv"); 8302 return; 8303 } 8304 8305 if (have_ifidx(drv, lladdr.sll_ifindex)) 8306 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8307} 8308 8309 8310static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8311 struct i802_bss *bss, 8312 const char *brname, const char *ifname) 8313{ 8314 int ifindex; 8315 char in_br[IFNAMSIZ]; 8316 8317 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8318 ifindex = if_nametoindex(brname); 8319 if (ifindex == 0) { 8320 /* 8321 * Bridge was configured, but the bridge device does 8322 * not exist. Try to add it now. 8323 */ 8324 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8325 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8326 "bridge interface %s: %s", 8327 brname, strerror(errno)); 8328 return -1; 8329 } 8330 bss->added_bridge = 1; 8331 add_ifidx(drv, if_nametoindex(brname)); 8332 } 8333 8334 if (linux_br_get(in_br, ifname) == 0) { 8335 if (os_strcmp(in_br, brname) == 0) 8336 return 0; /* already in the bridge */ 8337 8338 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8339 "bridge %s", ifname, in_br); 8340 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8341 0) { 8342 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8343 "remove interface %s from bridge " 8344 "%s: %s", 8345 ifname, brname, strerror(errno)); 8346 return -1; 8347 } 8348 } 8349 8350 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8351 ifname, brname); 8352 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8353 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8354 "into bridge %s: %s", 8355 ifname, brname, strerror(errno)); 8356 return -1; 8357 } 8358 bss->added_if_into_bridge = 1; 8359 8360 return 0; 8361} 8362 8363 8364static void *i802_init(struct hostapd_data *hapd, 8365 struct wpa_init_params *params) 8366{ 8367 struct wpa_driver_nl80211_data *drv; 8368 struct i802_bss *bss; 8369 size_t i; 8370 char brname[IFNAMSIZ]; 8371 int ifindex, br_ifindex; 8372 int br_added = 0; 8373 8374 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8375 params->global_priv); 8376 if (bss == NULL) 8377 return NULL; 8378 8379 drv = bss->drv; 8380 drv->nlmode = NL80211_IFTYPE_AP; 8381 drv->eapol_sock = -1; 8382 8383 if (linux_br_get(brname, params->ifname) == 0) { 8384 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8385 params->ifname, brname); 8386 br_ifindex = if_nametoindex(brname); 8387 } else { 8388 brname[0] = '\0'; 8389 br_ifindex = 0; 8390 } 8391 8392 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8393 drv->if_indices = drv->default_if_indices; 8394 for (i = 0; i < params->num_bridge; i++) { 8395 if (params->bridge[i]) { 8396 ifindex = if_nametoindex(params->bridge[i]); 8397 if (ifindex) 8398 add_ifidx(drv, ifindex); 8399 if (ifindex == br_ifindex) 8400 br_added = 1; 8401 } 8402 } 8403 if (!br_added && br_ifindex && 8404 (params->num_bridge == 0 || !params->bridge[0])) 8405 add_ifidx(drv, br_ifindex); 8406 8407 /* start listening for EAPOL on the default AP interface */ 8408 add_ifidx(drv, drv->ifindex); 8409 8410 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8411 goto failed; 8412 8413 if (params->bssid) { 8414 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8415 params->bssid)) 8416 goto failed; 8417 } 8418 8419 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8420 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8421 "into AP mode", bss->ifname); 8422 goto failed; 8423 } 8424 8425 if (params->num_bridge && params->bridge[0] && 8426 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8427 goto failed; 8428 8429 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8430 goto failed; 8431 8432 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8433 if (drv->eapol_sock < 0) { 8434 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8435 goto failed; 8436 } 8437 8438 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8439 { 8440 printf("Could not register read socket for eapol\n"); 8441 goto failed; 8442 } 8443 8444 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8445 params->own_addr)) 8446 goto failed; 8447 8448 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8449 8450 return bss; 8451 8452failed: 8453 wpa_driver_nl80211_deinit(bss); 8454 return NULL; 8455} 8456 8457 8458static void i802_deinit(void *priv) 8459{ 8460 struct i802_bss *bss = priv; 8461 wpa_driver_nl80211_deinit(bss); 8462} 8463 8464#endif /* HOSTAPD */ 8465 8466 8467static enum nl80211_iftype wpa_driver_nl80211_if_type( 8468 enum wpa_driver_if_type type) 8469{ 8470 switch (type) { 8471 case WPA_IF_STATION: 8472 return NL80211_IFTYPE_STATION; 8473 case WPA_IF_P2P_CLIENT: 8474 case WPA_IF_P2P_GROUP: 8475 return NL80211_IFTYPE_P2P_CLIENT; 8476 case WPA_IF_AP_VLAN: 8477 return NL80211_IFTYPE_AP_VLAN; 8478 case WPA_IF_AP_BSS: 8479 return NL80211_IFTYPE_AP; 8480 case WPA_IF_P2P_GO: 8481 return NL80211_IFTYPE_P2P_GO; 8482 } 8483 return -1; 8484} 8485 8486 8487#ifdef CONFIG_P2P 8488 8489static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8490{ 8491 struct wpa_driver_nl80211_data *drv; 8492 dl_list_for_each(drv, &global->interfaces, 8493 struct wpa_driver_nl80211_data, list) { 8494 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8495 return 1; 8496 } 8497 return 0; 8498} 8499 8500 8501static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8502 u8 *new_addr) 8503{ 8504 unsigned int idx; 8505 8506 if (!drv->global) 8507 return -1; 8508 8509 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8510 for (idx = 0; idx < 64; idx++) { 8511 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8512 new_addr[0] ^= idx << 2; 8513 if (!nl80211_addr_in_use(drv->global, new_addr)) 8514 break; 8515 } 8516 if (idx == 64) 8517 return -1; 8518 8519 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8520 MACSTR, MAC2STR(new_addr)); 8521 8522 return 0; 8523} 8524 8525#endif /* CONFIG_P2P */ 8526 8527 8528static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 8529 const char *ifname, const u8 *addr, 8530 void *bss_ctx, void **drv_priv, 8531 char *force_ifname, u8 *if_addr, 8532 const char *bridge) 8533{ 8534 struct i802_bss *bss = priv; 8535 struct wpa_driver_nl80211_data *drv = bss->drv; 8536 int ifidx; 8537#ifdef HOSTAPD 8538 struct i802_bss *new_bss = NULL; 8539 8540 if (type == WPA_IF_AP_BSS) { 8541 new_bss = os_zalloc(sizeof(*new_bss)); 8542 if (new_bss == NULL) 8543 return -1; 8544 } 8545#endif /* HOSTAPD */ 8546 8547 if (addr) 8548 os_memcpy(if_addr, addr, ETH_ALEN); 8549 ifidx = nl80211_create_iface(drv, ifname, 8550 wpa_driver_nl80211_if_type(type), addr, 8551 0); 8552 if (ifidx < 0) { 8553#ifdef HOSTAPD 8554 os_free(new_bss); 8555#endif /* HOSTAPD */ 8556 return -1; 8557 } 8558 8559 if (!addr && 8560 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8561 if_addr) < 0) { 8562 nl80211_remove_iface(drv, ifidx); 8563 return -1; 8564 } 8565 8566#ifdef CONFIG_P2P 8567 if (!addr && 8568 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 8569 type == WPA_IF_P2P_GO)) { 8570 /* Enforce unique P2P Interface Address */ 8571 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN]; 8572 8573 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8574 own_addr) < 0 || 8575 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 8576 new_addr) < 0) { 8577 nl80211_remove_iface(drv, ifidx); 8578 return -1; 8579 } 8580 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) { 8581 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 8582 "for P2P group interface"); 8583 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 8584 nl80211_remove_iface(drv, ifidx); 8585 return -1; 8586 } 8587 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 8588 new_addr) < 0) { 8589 nl80211_remove_iface(drv, ifidx); 8590 return -1; 8591 } 8592 } 8593 os_memcpy(if_addr, new_addr, ETH_ALEN); 8594 } 8595#endif /* CONFIG_P2P */ 8596 8597#ifdef HOSTAPD 8598 if (bridge && 8599 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 8600 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 8601 "interface %s to a bridge %s", ifname, bridge); 8602 nl80211_remove_iface(drv, ifidx); 8603 os_free(new_bss); 8604 return -1; 8605 } 8606 8607 if (type == WPA_IF_AP_BSS) { 8608 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 8609 { 8610 nl80211_remove_iface(drv, ifidx); 8611 os_free(new_bss); 8612 return -1; 8613 } 8614 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 8615 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 8616 new_bss->ifindex = ifidx; 8617 new_bss->drv = drv; 8618 new_bss->next = drv->first_bss.next; 8619 new_bss->freq = drv->first_bss.freq; 8620 new_bss->ctx = bss_ctx; 8621 drv->first_bss.next = new_bss; 8622 if (drv_priv) 8623 *drv_priv = new_bss; 8624 nl80211_init_bss(new_bss); 8625 8626 /* Subscribe management frames for this WPA_IF_AP_BSS */ 8627 if (nl80211_setup_ap(new_bss)) 8628 return -1; 8629 } 8630#endif /* HOSTAPD */ 8631 8632 if (drv->global) 8633 drv->global->if_add_ifindex = ifidx; 8634 8635 return 0; 8636} 8637 8638 8639static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 8640 enum wpa_driver_if_type type, 8641 const char *ifname) 8642{ 8643 struct wpa_driver_nl80211_data *drv = bss->drv; 8644 int ifindex = if_nametoindex(ifname); 8645 8646 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 8647 __func__, type, ifname, ifindex); 8648 if (ifindex <= 0) 8649 return -1; 8650 8651 nl80211_remove_iface(drv, ifindex); 8652 8653#ifdef HOSTAPD 8654 if (type != WPA_IF_AP_BSS) 8655 return 0; 8656 8657 if (bss->added_if_into_bridge) { 8658 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 8659 bss->ifname) < 0) 8660 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8661 "interface %s from bridge %s: %s", 8662 bss->ifname, bss->brname, strerror(errno)); 8663 } 8664 if (bss->added_bridge) { 8665 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 8666 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8667 "bridge %s: %s", 8668 bss->brname, strerror(errno)); 8669 } 8670 8671 if (bss != &drv->first_bss) { 8672 struct i802_bss *tbss; 8673 8674 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 8675 if (tbss->next == bss) { 8676 tbss->next = bss->next; 8677 /* Unsubscribe management frames */ 8678 nl80211_teardown_ap(bss); 8679 nl80211_destroy_bss(bss); 8680 os_free(bss); 8681 bss = NULL; 8682 break; 8683 } 8684 } 8685 if (bss) 8686 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 8687 "BSS %p in the list", __func__, bss); 8688 } 8689#endif /* HOSTAPD */ 8690 8691 return 0; 8692} 8693 8694 8695static int cookie_handler(struct nl_msg *msg, void *arg) 8696{ 8697 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8698 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8699 u64 *cookie = arg; 8700 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8701 genlmsg_attrlen(gnlh, 0), NULL); 8702 if (tb[NL80211_ATTR_COOKIE]) 8703 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 8704 return NL_SKIP; 8705} 8706 8707 8708static int nl80211_send_frame_cmd(struct i802_bss *bss, 8709 unsigned int freq, unsigned int wait, 8710 const u8 *buf, size_t buf_len, 8711 u64 *cookie_out, int no_cck, int no_ack, 8712 int offchanok) 8713{ 8714 struct wpa_driver_nl80211_data *drv = bss->drv; 8715 struct nl_msg *msg; 8716 u64 cookie; 8717 int ret = -1; 8718 8719 msg = nlmsg_alloc(); 8720 if (!msg) 8721 return -1; 8722 8723 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 8724 "no_ack=%d offchanok=%d", 8725 freq, wait, no_cck, no_ack, offchanok); 8726 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 8727 8728 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 8729 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8730 if (wait) 8731 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 8732 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 8733 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 8734 if (no_cck) 8735 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 8736 if (no_ack) 8737 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 8738 8739 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 8740 8741 cookie = 0; 8742 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8743 msg = NULL; 8744 if (ret) { 8745 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 8746 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 8747 freq, wait); 8748 goto nla_put_failure; 8749 } 8750 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 8751 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 8752 (long long unsigned int) cookie); 8753 8754 if (cookie_out) 8755 *cookie_out = no_ack ? (u64) -1 : cookie; 8756 8757nla_put_failure: 8758 nlmsg_free(msg); 8759 return ret; 8760} 8761 8762 8763static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 8764 unsigned int freq, 8765 unsigned int wait_time, 8766 const u8 *dst, const u8 *src, 8767 const u8 *bssid, 8768 const u8 *data, size_t data_len, 8769 int no_cck) 8770{ 8771 struct wpa_driver_nl80211_data *drv = bss->drv; 8772 int ret = -1; 8773 u8 *buf; 8774 struct ieee80211_hdr *hdr; 8775 8776 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 8777 "freq=%u MHz wait=%d ms no_cck=%d)", 8778 drv->ifindex, freq, wait_time, no_cck); 8779 8780 buf = os_zalloc(24 + data_len); 8781 if (buf == NULL) 8782 return ret; 8783 os_memcpy(buf + 24, data, data_len); 8784 hdr = (struct ieee80211_hdr *) buf; 8785 hdr->frame_control = 8786 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 8787 os_memcpy(hdr->addr1, dst, ETH_ALEN); 8788 os_memcpy(hdr->addr2, src, ETH_ALEN); 8789 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 8790 8791 if (is_ap_interface(drv->nlmode)) 8792 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 8793 0, freq, no_cck, 1, 8794 wait_time); 8795 else 8796 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 8797 24 + data_len, 8798 &drv->send_action_cookie, 8799 no_cck, 0, 1); 8800 8801 os_free(buf); 8802 return ret; 8803} 8804 8805 8806static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 8807{ 8808 struct i802_bss *bss = priv; 8809 struct wpa_driver_nl80211_data *drv = bss->drv; 8810 struct nl_msg *msg; 8811 int ret; 8812 8813 msg = nlmsg_alloc(); 8814 if (!msg) 8815 return; 8816 8817 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 8818 (long long unsigned int) drv->send_action_cookie); 8819 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 8820 8821 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8822 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 8823 8824 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8825 msg = NULL; 8826 if (ret) 8827 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 8828 "(%s)", ret, strerror(-ret)); 8829 8830 nla_put_failure: 8831 nlmsg_free(msg); 8832} 8833 8834 8835static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 8836 unsigned int duration) 8837{ 8838 struct i802_bss *bss = priv; 8839 struct wpa_driver_nl80211_data *drv = bss->drv; 8840 struct nl_msg *msg; 8841 int ret; 8842 u64 cookie; 8843 8844 msg = nlmsg_alloc(); 8845 if (!msg) 8846 return -1; 8847 8848 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 8849 8850 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8851 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8852 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 8853 8854 cookie = 0; 8855 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8856 msg = NULL; 8857 if (ret == 0) { 8858 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 8859 "0x%llx for freq=%u MHz duration=%u", 8860 (long long unsigned int) cookie, freq, duration); 8861 drv->remain_on_chan_cookie = cookie; 8862 drv->pending_remain_on_chan = 1; 8863 return 0; 8864 } 8865 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 8866 "(freq=%d duration=%u): %d (%s)", 8867 freq, duration, ret, strerror(-ret)); 8868nla_put_failure: 8869 nlmsg_free(msg); 8870 return -1; 8871} 8872 8873 8874static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 8875{ 8876 struct i802_bss *bss = priv; 8877 struct wpa_driver_nl80211_data *drv = bss->drv; 8878 struct nl_msg *msg; 8879 int ret; 8880 8881 if (!drv->pending_remain_on_chan) { 8882 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 8883 "to cancel"); 8884 return -1; 8885 } 8886 8887 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 8888 "0x%llx", 8889 (long long unsigned int) drv->remain_on_chan_cookie); 8890 8891 msg = nlmsg_alloc(); 8892 if (!msg) 8893 return -1; 8894 8895 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 8896 8897 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8898 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 8899 8900 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8901 msg = NULL; 8902 if (ret == 0) 8903 return 0; 8904 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 8905 "%d (%s)", ret, strerror(-ret)); 8906nla_put_failure: 8907 nlmsg_free(msg); 8908 return -1; 8909} 8910 8911 8912static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 8913{ 8914 struct wpa_driver_nl80211_data *drv = bss->drv; 8915 8916 if (!report) { 8917 if (bss->nl_preq && drv->device_ap_sme && 8918 is_ap_interface(drv->nlmode)) { 8919 /* 8920 * Do not disable Probe Request reporting that was 8921 * enabled in nl80211_setup_ap(). 8922 */ 8923 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 8924 "Probe Request reporting nl_preq=%p while " 8925 "in AP mode", bss->nl_preq); 8926 } else if (bss->nl_preq) { 8927 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 8928 "reporting nl_preq=%p", bss->nl_preq); 8929 eloop_unregister_read_sock( 8930 nl_socket_get_fd(bss->nl_preq)); 8931 nl_destroy_handles(&bss->nl_preq); 8932 } 8933 return 0; 8934 } 8935 8936 if (bss->nl_preq) { 8937 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 8938 "already on! nl_preq=%p", bss->nl_preq); 8939 return 0; 8940 } 8941 8942 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 8943 if (bss->nl_preq == NULL) 8944 return -1; 8945 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 8946 "reporting nl_preq=%p", bss->nl_preq); 8947 8948 if (nl80211_register_frame(bss, bss->nl_preq, 8949 (WLAN_FC_TYPE_MGMT << 2) | 8950 (WLAN_FC_STYPE_PROBE_REQ << 4), 8951 NULL, 0) < 0) 8952 goto out_err; 8953 8954 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 8955 wpa_driver_nl80211_event_receive, bss->nl_cb, 8956 bss->nl_preq); 8957 8958 return 0; 8959 8960 out_err: 8961 nl_destroy_handles(&bss->nl_preq); 8962 return -1; 8963} 8964 8965 8966static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 8967 int ifindex, int disabled) 8968{ 8969 struct nl_msg *msg; 8970 struct nlattr *bands, *band; 8971 int ret; 8972 8973 msg = nlmsg_alloc(); 8974 if (!msg) 8975 return -1; 8976 8977 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 8978 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 8979 8980 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 8981 if (!bands) 8982 goto nla_put_failure; 8983 8984 /* 8985 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 8986 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 8987 * rates. All 5 GHz rates are left enabled. 8988 */ 8989 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 8990 if (!band) 8991 goto nla_put_failure; 8992 if (disabled) { 8993 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 8994 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 8995 } 8996 nla_nest_end(msg, band); 8997 8998 nla_nest_end(msg, bands); 8999 9000 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9001 msg = NULL; 9002 if (ret) { 9003 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9004 "(%s)", ret, strerror(-ret)); 9005 } else 9006 drv->disabled_11b_rates = disabled; 9007 9008 return ret; 9009 9010nla_put_failure: 9011 nlmsg_free(msg); 9012 return -1; 9013} 9014 9015 9016static int wpa_driver_nl80211_deinit_ap(void *priv) 9017{ 9018 struct i802_bss *bss = priv; 9019 struct wpa_driver_nl80211_data *drv = bss->drv; 9020 if (!is_ap_interface(drv->nlmode)) 9021 return -1; 9022 wpa_driver_nl80211_del_beacon(drv); 9023 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9024} 9025 9026 9027static int wpa_driver_nl80211_stop_ap(void *priv) 9028{ 9029 struct i802_bss *bss = priv; 9030 struct wpa_driver_nl80211_data *drv = bss->drv; 9031 if (!is_ap_interface(drv->nlmode)) 9032 return -1; 9033 wpa_driver_nl80211_del_beacon(drv); 9034 bss->beacon_set = 0; 9035 return 0; 9036} 9037 9038 9039static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9040{ 9041 struct i802_bss *bss = priv; 9042 struct wpa_driver_nl80211_data *drv = bss->drv; 9043 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9044 return -1; 9045 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9046} 9047 9048 9049static void wpa_driver_nl80211_resume(void *priv) 9050{ 9051 struct i802_bss *bss = priv; 9052 struct wpa_driver_nl80211_data *drv = bss->drv; 9053 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 9054 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " 9055 "resume event"); 9056 } 9057} 9058 9059 9060static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9061 const u8 *ies, size_t ies_len) 9062{ 9063 struct i802_bss *bss = priv; 9064 struct wpa_driver_nl80211_data *drv = bss->drv; 9065 int ret; 9066 u8 *data, *pos; 9067 size_t data_len; 9068 const u8 *own_addr = bss->addr; 9069 9070 if (action != 1) { 9071 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9072 "action %d", action); 9073 return -1; 9074 } 9075 9076 /* 9077 * Action frame payload: 9078 * Category[1] = 6 (Fast BSS Transition) 9079 * Action[1] = 1 (Fast BSS Transition Request) 9080 * STA Address 9081 * Target AP Address 9082 * FT IEs 9083 */ 9084 9085 data_len = 2 + 2 * ETH_ALEN + ies_len; 9086 data = os_malloc(data_len); 9087 if (data == NULL) 9088 return -1; 9089 pos = data; 9090 *pos++ = 0x06; /* FT Action category */ 9091 *pos++ = action; 9092 os_memcpy(pos, own_addr, ETH_ALEN); 9093 pos += ETH_ALEN; 9094 os_memcpy(pos, target_ap, ETH_ALEN); 9095 pos += ETH_ALEN; 9096 os_memcpy(pos, ies, ies_len); 9097 9098 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9099 drv->bssid, own_addr, drv->bssid, 9100 data, data_len, 0); 9101 os_free(data); 9102 9103 return ret; 9104} 9105 9106 9107static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9108{ 9109 struct i802_bss *bss = priv; 9110 struct wpa_driver_nl80211_data *drv = bss->drv; 9111 struct nl_msg *msg; 9112 struct nlattr *cqm; 9113 int ret = -1; 9114 9115 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9116 "hysteresis=%d", threshold, hysteresis); 9117 9118 msg = nlmsg_alloc(); 9119 if (!msg) 9120 return -1; 9121 9122 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9123 9124 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9125 9126 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9127 if (cqm == NULL) 9128 goto nla_put_failure; 9129 9130 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9131 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9132 nla_nest_end(msg, cqm); 9133 9134 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9135 msg = NULL; 9136 9137nla_put_failure: 9138 nlmsg_free(msg); 9139 return ret; 9140} 9141 9142 9143static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9144{ 9145 struct i802_bss *bss = priv; 9146 struct wpa_driver_nl80211_data *drv = bss->drv; 9147 int res; 9148 9149 os_memset(si, 0, sizeof(*si)); 9150 res = nl80211_get_link_signal(drv, si); 9151 if (res != 0) 9152 return res; 9153 9154 return nl80211_get_link_noise(drv, si); 9155} 9156 9157 9158static int wpa_driver_nl80211_shared_freq(void *priv) 9159{ 9160 struct i802_bss *bss = priv; 9161 struct wpa_driver_nl80211_data *drv = bss->drv; 9162 struct wpa_driver_nl80211_data *driver; 9163 int freq = 0; 9164 9165 /* 9166 * If the same PHY is in connected state with some other interface, 9167 * then retrieve the assoc freq. 9168 */ 9169 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9170 drv->phyname); 9171 9172 dl_list_for_each(driver, &drv->global->interfaces, 9173 struct wpa_driver_nl80211_data, list) { 9174 if (drv == driver || 9175 os_strcmp(drv->phyname, driver->phyname) != 0 || 9176#ifdef ANDROID_P2P 9177 (!driver->associated && !is_ap_interface(driver->nlmode))) 9178#else 9179 !driver->associated) 9180#endif 9181 continue; 9182 9183 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9184 MACSTR, 9185 driver->phyname, driver->first_bss.ifname, 9186 MAC2STR(driver->first_bss.addr)); 9187 if (is_ap_interface(driver->nlmode)) 9188 freq = driver->first_bss.freq; 9189 else 9190 freq = nl80211_get_assoc_freq(driver); 9191 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9192 drv->phyname, freq); 9193 } 9194 9195 if (!freq) 9196 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9197 "PHY (%s) in associated state", drv->phyname); 9198 9199 return freq; 9200} 9201 9202 9203static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9204 int encrypt) 9205{ 9206 struct i802_bss *bss = priv; 9207 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9208 0, 0, 0, 0); 9209} 9210 9211 9212static int nl80211_set_param(void *priv, const char *param) 9213{ 9214 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9215 if (param == NULL) 9216 return 0; 9217 9218#ifdef CONFIG_P2P 9219 if (os_strstr(param, "use_p2p_group_interface=1")) { 9220 struct i802_bss *bss = priv; 9221 struct wpa_driver_nl80211_data *drv = bss->drv; 9222 9223 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9224 "interface"); 9225 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9226 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9227 } 9228#ifdef ANDROID_P2P 9229 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9230 struct i802_bss *bss = priv; 9231 struct wpa_driver_nl80211_data *drv = bss->drv; 9232 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9233 "concurrency"); 9234 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 9235 } 9236#endif 9237#endif /* CONFIG_P2P */ 9238 9239 return 0; 9240} 9241 9242 9243static void * nl80211_global_init(void) 9244{ 9245 struct nl80211_global *global; 9246 struct netlink_config *cfg; 9247 9248 global = os_zalloc(sizeof(*global)); 9249 if (global == NULL) 9250 return NULL; 9251 global->ioctl_sock = -1; 9252 dl_list_init(&global->interfaces); 9253 global->if_add_ifindex = -1; 9254 9255 cfg = os_zalloc(sizeof(*cfg)); 9256 if (cfg == NULL) 9257 goto err; 9258 9259 cfg->ctx = global; 9260 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9261 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9262 global->netlink = netlink_init(cfg); 9263 if (global->netlink == NULL) { 9264 os_free(cfg); 9265 goto err; 9266 } 9267 9268 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9269 goto err; 9270 9271 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9272 if (global->ioctl_sock < 0) { 9273 perror("socket(PF_INET,SOCK_DGRAM)"); 9274 goto err; 9275 } 9276 9277 return global; 9278 9279err: 9280 nl80211_global_deinit(global); 9281 return NULL; 9282} 9283 9284 9285static void nl80211_global_deinit(void *priv) 9286{ 9287 struct nl80211_global *global = priv; 9288 if (global == NULL) 9289 return; 9290 if (!dl_list_empty(&global->interfaces)) { 9291 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9292 "nl80211_global_deinit", 9293 dl_list_len(&global->interfaces)); 9294 } 9295 9296 if (global->netlink) 9297 netlink_deinit(global->netlink); 9298 9299 nl_destroy_handles(&global->nl); 9300 9301 if (global->nl_event) { 9302 eloop_unregister_read_sock( 9303 nl_socket_get_fd(global->nl_event)); 9304 nl_destroy_handles(&global->nl_event); 9305 } 9306 9307 nl_cb_put(global->nl_cb); 9308 9309 if (global->ioctl_sock >= 0) 9310 close(global->ioctl_sock); 9311 9312 os_free(global); 9313} 9314 9315 9316static const char * nl80211_get_radio_name(void *priv) 9317{ 9318 struct i802_bss *bss = priv; 9319 struct wpa_driver_nl80211_data *drv = bss->drv; 9320 return drv->phyname; 9321} 9322 9323 9324static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9325 const u8 *pmkid) 9326{ 9327 struct nl_msg *msg; 9328 9329 msg = nlmsg_alloc(); 9330 if (!msg) 9331 return -ENOMEM; 9332 9333 nl80211_cmd(bss->drv, msg, 0, cmd); 9334 9335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9336 if (pmkid) 9337 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9338 if (bssid) 9339 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9340 9341 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9342 nla_put_failure: 9343 nlmsg_free(msg); 9344 return -ENOBUFS; 9345} 9346 9347 9348static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9349{ 9350 struct i802_bss *bss = priv; 9351 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9352 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9353} 9354 9355 9356static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9357{ 9358 struct i802_bss *bss = priv; 9359 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9360 MAC2STR(bssid)); 9361 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9362} 9363 9364 9365static int nl80211_flush_pmkid(void *priv) 9366{ 9367 struct i802_bss *bss = priv; 9368 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9369 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9370} 9371 9372 9373static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9374 const u8 *replay_ctr) 9375{ 9376 struct i802_bss *bss = priv; 9377 struct wpa_driver_nl80211_data *drv = bss->drv; 9378 struct nlattr *replay_nested; 9379 struct nl_msg *msg; 9380 9381 msg = nlmsg_alloc(); 9382 if (!msg) 9383 return; 9384 9385 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 9386 9387 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9388 9389 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 9390 if (!replay_nested) 9391 goto nla_put_failure; 9392 9393 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 9394 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 9395 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 9396 replay_ctr); 9397 9398 nla_nest_end(msg, replay_nested); 9399 9400 send_and_recv_msgs(drv, msg, NULL, NULL); 9401 return; 9402 nla_put_failure: 9403 nlmsg_free(msg); 9404} 9405 9406 9407static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 9408 const u8 *addr, int qos) 9409{ 9410 /* send data frame to poll STA and check whether 9411 * this frame is ACKed */ 9412 struct { 9413 struct ieee80211_hdr hdr; 9414 u16 qos_ctl; 9415 } STRUCT_PACKED nulldata; 9416 size_t size; 9417 9418 /* Send data frame to poll STA and check whether this frame is ACKed */ 9419 9420 os_memset(&nulldata, 0, sizeof(nulldata)); 9421 9422 if (qos) { 9423 nulldata.hdr.frame_control = 9424 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9425 WLAN_FC_STYPE_QOS_NULL); 9426 size = sizeof(nulldata); 9427 } else { 9428 nulldata.hdr.frame_control = 9429 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9430 WLAN_FC_STYPE_NULLFUNC); 9431 size = sizeof(struct ieee80211_hdr); 9432 } 9433 9434 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 9435 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 9436 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 9437 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 9438 9439 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 9440 0, 0) < 0) 9441 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 9442 "send poll frame"); 9443} 9444 9445static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 9446 int qos) 9447{ 9448 struct i802_bss *bss = priv; 9449 struct wpa_driver_nl80211_data *drv = bss->drv; 9450 struct nl_msg *msg; 9451 9452 if (!drv->poll_command_supported) { 9453 nl80211_send_null_frame(bss, own_addr, addr, qos); 9454 return; 9455 } 9456 9457 msg = nlmsg_alloc(); 9458 if (!msg) 9459 return; 9460 9461 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 9462 9463 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9464 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9465 9466 send_and_recv_msgs(drv, msg, NULL, NULL); 9467 return; 9468 nla_put_failure: 9469 nlmsg_free(msg); 9470} 9471 9472 9473static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 9474{ 9475 struct nl_msg *msg; 9476 9477 msg = nlmsg_alloc(); 9478 if (!msg) 9479 return -ENOMEM; 9480 9481 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 9482 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9483 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 9484 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 9485 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9486nla_put_failure: 9487 nlmsg_free(msg); 9488 return -ENOBUFS; 9489} 9490 9491 9492static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 9493 int ctwindow) 9494{ 9495 struct i802_bss *bss = priv; 9496 9497 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 9498 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 9499 9500 if (opp_ps != -1 || ctwindow != -1) 9501#ifdef ANDROID_P2P 9502 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 9503#else 9504 return -1; /* Not yet supported */ 9505#endif 9506 9507 if (legacy_ps == -1) 9508 return 0; 9509 if (legacy_ps != 0 && legacy_ps != 1) 9510 return -1; /* Not yet supported */ 9511 9512 return nl80211_set_power_save(bss, legacy_ps); 9513} 9514 9515 9516static int nl80211_start_radar_detection(void *priv, int freq) 9517{ 9518 struct i802_bss *bss = priv; 9519 struct wpa_driver_nl80211_data *drv = bss->drv; 9520 struct nl_msg *msg; 9521 int ret; 9522 9523 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 9524 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 9525 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 9526 "detection"); 9527 return -1; 9528 } 9529 9530 msg = nlmsg_alloc(); 9531 if (!msg) 9532 return -1; 9533 9534 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 9535 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9536 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9537 9538 /* only HT20 is supported at this point */ 9539 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 9540 9541 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9542 if (ret == 0) 9543 return 0; 9544 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 9545 "%d (%s)", ret, strerror(-ret)); 9546nla_put_failure: 9547 return -1; 9548} 9549 9550#ifdef CONFIG_TDLS 9551 9552static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 9553 u8 dialog_token, u16 status_code, 9554 const u8 *buf, size_t len) 9555{ 9556 struct i802_bss *bss = priv; 9557 struct wpa_driver_nl80211_data *drv = bss->drv; 9558 struct nl_msg *msg; 9559 9560 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9561 return -EOPNOTSUPP; 9562 9563 if (!dst) 9564 return -EINVAL; 9565 9566 msg = nlmsg_alloc(); 9567 if (!msg) 9568 return -ENOMEM; 9569 9570 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 9571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9572 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 9573 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 9574 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 9575 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 9576 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 9577 9578 return send_and_recv_msgs(drv, msg, NULL, NULL); 9579 9580nla_put_failure: 9581 nlmsg_free(msg); 9582 return -ENOBUFS; 9583} 9584 9585 9586static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 9587{ 9588 struct i802_bss *bss = priv; 9589 struct wpa_driver_nl80211_data *drv = bss->drv; 9590 struct nl_msg *msg; 9591 enum nl80211_tdls_operation nl80211_oper; 9592 9593 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9594 return -EOPNOTSUPP; 9595 9596 switch (oper) { 9597 case TDLS_DISCOVERY_REQ: 9598 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 9599 break; 9600 case TDLS_SETUP: 9601 nl80211_oper = NL80211_TDLS_SETUP; 9602 break; 9603 case TDLS_TEARDOWN: 9604 nl80211_oper = NL80211_TDLS_TEARDOWN; 9605 break; 9606 case TDLS_ENABLE_LINK: 9607 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 9608 break; 9609 case TDLS_DISABLE_LINK: 9610 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 9611 break; 9612 case TDLS_ENABLE: 9613 return 0; 9614 case TDLS_DISABLE: 9615 return 0; 9616 default: 9617 return -EINVAL; 9618 } 9619 9620 msg = nlmsg_alloc(); 9621 if (!msg) 9622 return -ENOMEM; 9623 9624 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 9625 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 9626 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9627 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 9628 9629 return send_and_recv_msgs(drv, msg, NULL, NULL); 9630 9631nla_put_failure: 9632 nlmsg_free(msg); 9633 return -ENOBUFS; 9634} 9635 9636#endif /* CONFIG TDLS */ 9637 9638 9639#ifdef ANDROID 9640 9641typedef struct android_wifi_priv_cmd { 9642 char *buf; 9643 int used_len; 9644 int total_len; 9645} android_wifi_priv_cmd; 9646 9647static int drv_errors = 0; 9648 9649static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 9650{ 9651 drv_errors++; 9652 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 9653 drv_errors = 0; 9654 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 9655 } 9656} 9657 9658 9659static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 9660{ 9661 struct wpa_driver_nl80211_data *drv = bss->drv; 9662 struct ifreq ifr; 9663 android_wifi_priv_cmd priv_cmd; 9664 char buf[MAX_DRV_CMD_SIZE]; 9665 int ret; 9666 9667 os_memset(&ifr, 0, sizeof(ifr)); 9668 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 9669 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9670 9671 os_memset(buf, 0, sizeof(buf)); 9672 os_strlcpy(buf, cmd, sizeof(buf)); 9673 9674 priv_cmd.buf = buf; 9675 priv_cmd.used_len = sizeof(buf); 9676 priv_cmd.total_len = sizeof(buf); 9677 ifr.ifr_data = &priv_cmd; 9678 9679 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9680 if (ret < 0) { 9681 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 9682 __func__); 9683 wpa_driver_send_hang_msg(drv); 9684 return ret; 9685 } 9686 9687 drv_errors = 0; 9688 return 0; 9689} 9690 9691 9692static int android_pno_start(struct i802_bss *bss, 9693 struct wpa_driver_scan_params *params) 9694{ 9695 struct wpa_driver_nl80211_data *drv = bss->drv; 9696 struct ifreq ifr; 9697 android_wifi_priv_cmd priv_cmd; 9698 int ret = 0, i = 0, bp; 9699 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 9700 9701 bp = WEXT_PNOSETUP_HEADER_SIZE; 9702 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 9703 buf[bp++] = WEXT_PNO_TLV_PREFIX; 9704 buf[bp++] = WEXT_PNO_TLV_VERSION; 9705 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 9706 buf[bp++] = WEXT_PNO_TLV_RESERVED; 9707 9708 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 9709 /* Check that there is enough space needed for 1 more SSID, the 9710 * other sections and null termination */ 9711 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 9712 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 9713 break; 9714 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 9715 params->ssids[i].ssid, 9716 params->ssids[i].ssid_len); 9717 buf[bp++] = WEXT_PNO_SSID_SECTION; 9718 buf[bp++] = params->ssids[i].ssid_len; 9719 os_memcpy(&buf[bp], params->ssids[i].ssid, 9720 params->ssids[i].ssid_len); 9721 bp += params->ssids[i].ssid_len; 9722 i++; 9723 } 9724 9725 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 9726 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 9727 WEXT_PNO_SCAN_INTERVAL); 9728 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 9729 9730 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 9731 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 9732 WEXT_PNO_REPEAT); 9733 bp += WEXT_PNO_REPEAT_LENGTH; 9734 9735 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 9736 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 9737 WEXT_PNO_MAX_REPEAT); 9738 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 9739 9740 memset(&ifr, 0, sizeof(ifr)); 9741 memset(&priv_cmd, 0, sizeof(priv_cmd)); 9742 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9743 9744 priv_cmd.buf = buf; 9745 priv_cmd.used_len = bp; 9746 priv_cmd.total_len = bp; 9747 ifr.ifr_data = &priv_cmd; 9748 9749 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9750 9751 if (ret < 0) { 9752 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 9753 ret); 9754 wpa_driver_send_hang_msg(drv); 9755 return ret; 9756 } 9757 9758 drv_errors = 0; 9759 9760 return android_priv_cmd(bss, "PNOFORCE 1"); 9761} 9762 9763 9764static int android_pno_stop(struct i802_bss *bss) 9765{ 9766 return android_priv_cmd(bss, "PNOFORCE 0"); 9767} 9768 9769#endif /* ANDROID */ 9770 9771 9772static int driver_nl80211_set_key(const char *ifname, void *priv, 9773 enum wpa_alg alg, const u8 *addr, 9774 int key_idx, int set_tx, 9775 const u8 *seq, size_t seq_len, 9776 const u8 *key, size_t key_len) 9777{ 9778 struct i802_bss *bss = priv; 9779 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 9780 set_tx, seq, seq_len, key, key_len); 9781} 9782 9783 9784static int driver_nl80211_scan2(void *priv, 9785 struct wpa_driver_scan_params *params) 9786{ 9787 struct i802_bss *bss = priv; 9788 return wpa_driver_nl80211_scan(bss, params); 9789} 9790 9791 9792static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 9793 int reason_code) 9794{ 9795 struct i802_bss *bss = priv; 9796 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 9797} 9798 9799 9800static int driver_nl80211_authenticate(void *priv, 9801 struct wpa_driver_auth_params *params) 9802{ 9803 struct i802_bss *bss = priv; 9804 return wpa_driver_nl80211_authenticate(bss, params); 9805} 9806 9807 9808static void driver_nl80211_deinit(void *priv) 9809{ 9810 struct i802_bss *bss = priv; 9811 wpa_driver_nl80211_deinit(bss); 9812} 9813 9814 9815static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 9816 const char *ifname) 9817{ 9818 struct i802_bss *bss = priv; 9819 return wpa_driver_nl80211_if_remove(bss, type, ifname); 9820} 9821 9822 9823static int driver_nl80211_send_mlme(void *priv, const u8 *data, 9824 size_t data_len, int noack) 9825{ 9826 struct i802_bss *bss = priv; 9827 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 9828 0, 0, 0, 0); 9829} 9830 9831 9832static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 9833{ 9834 struct i802_bss *bss = priv; 9835 return wpa_driver_nl80211_sta_remove(bss, addr); 9836} 9837 9838 9839#if defined(HOSTAPD) || defined(CONFIG_AP) 9840static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 9841 const char *ifname, int vlan_id) 9842{ 9843 struct i802_bss *bss = priv; 9844 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 9845} 9846#endif /* HOSTAPD || CONFIG_AP */ 9847 9848 9849static int driver_nl80211_read_sta_data(void *priv, 9850 struct hostap_sta_driver_data *data, 9851 const u8 *addr) 9852{ 9853 struct i802_bss *bss = priv; 9854 return i802_read_sta_data(bss, data, addr); 9855} 9856 9857 9858static int driver_nl80211_send_action(void *priv, unsigned int freq, 9859 unsigned int wait_time, 9860 const u8 *dst, const u8 *src, 9861 const u8 *bssid, 9862 const u8 *data, size_t data_len, 9863 int no_cck) 9864{ 9865 struct i802_bss *bss = priv; 9866 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 9867 bssid, data, data_len, no_cck); 9868} 9869 9870 9871static int driver_nl80211_probe_req_report(void *priv, int report) 9872{ 9873 struct i802_bss *bss = priv; 9874 return wpa_driver_nl80211_probe_req_report(bss, report); 9875} 9876 9877 9878static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 9879 const u8 *ies, size_t ies_len) 9880{ 9881 int ret; 9882 struct nl_msg *msg; 9883 struct i802_bss *bss = priv; 9884 struct wpa_driver_nl80211_data *drv = bss->drv; 9885 u16 mdid = WPA_GET_LE16(md); 9886 9887 msg = nlmsg_alloc(); 9888 if (!msg) 9889 return -ENOMEM; 9890 9891 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 9892 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 9893 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9894 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 9895 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 9896 9897 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9898 if (ret) { 9899 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 9900 "err=%d (%s)", ret, strerror(-ret)); 9901 } 9902 9903 return ret; 9904 9905nla_put_failure: 9906 nlmsg_free(msg); 9907 return -ENOBUFS; 9908} 9909 9910 9911const struct wpa_driver_ops wpa_driver_nl80211_ops = { 9912 .name = "nl80211", 9913 .desc = "Linux nl80211/cfg80211", 9914 .get_bssid = wpa_driver_nl80211_get_bssid, 9915 .get_ssid = wpa_driver_nl80211_get_ssid, 9916 .set_key = driver_nl80211_set_key, 9917 .scan2 = driver_nl80211_scan2, 9918 .sched_scan = wpa_driver_nl80211_sched_scan, 9919 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 9920 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 9921 .deauthenticate = driver_nl80211_deauthenticate, 9922 .authenticate = driver_nl80211_authenticate, 9923 .associate = wpa_driver_nl80211_associate, 9924 .global_init = nl80211_global_init, 9925 .global_deinit = nl80211_global_deinit, 9926 .init2 = wpa_driver_nl80211_init, 9927 .deinit = driver_nl80211_deinit, 9928 .get_capa = wpa_driver_nl80211_get_capa, 9929 .set_operstate = wpa_driver_nl80211_set_operstate, 9930 .set_supp_port = wpa_driver_nl80211_set_supp_port, 9931 .set_country = wpa_driver_nl80211_set_country, 9932 .set_ap = wpa_driver_nl80211_set_ap, 9933 .if_add = wpa_driver_nl80211_if_add, 9934 .if_remove = driver_nl80211_if_remove, 9935 .send_mlme = driver_nl80211_send_mlme, 9936 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 9937 .sta_add = wpa_driver_nl80211_sta_add, 9938 .sta_remove = driver_nl80211_sta_remove, 9939 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 9940 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 9941#ifdef HOSTAPD 9942 .hapd_init = i802_init, 9943 .hapd_deinit = i802_deinit, 9944 .set_wds_sta = i802_set_wds_sta, 9945#endif /* HOSTAPD */ 9946#if defined(HOSTAPD) || defined(CONFIG_AP) 9947 .get_seqnum = i802_get_seqnum, 9948 .flush = i802_flush, 9949 .get_inact_sec = i802_get_inact_sec, 9950 .sta_clear_stats = i802_sta_clear_stats, 9951 .set_rts = i802_set_rts, 9952 .set_frag = i802_set_frag, 9953 .set_tx_queue_params = i802_set_tx_queue_params, 9954 .set_sta_vlan = driver_nl80211_set_sta_vlan, 9955 .sta_deauth = i802_sta_deauth, 9956 .sta_disassoc = i802_sta_disassoc, 9957#endif /* HOSTAPD || CONFIG_AP */ 9958 .read_sta_data = driver_nl80211_read_sta_data, 9959 .set_freq = i802_set_freq, 9960 .send_action = driver_nl80211_send_action, 9961 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 9962 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 9963 .cancel_remain_on_channel = 9964 wpa_driver_nl80211_cancel_remain_on_channel, 9965 .probe_req_report = driver_nl80211_probe_req_report, 9966 .deinit_ap = wpa_driver_nl80211_deinit_ap, 9967 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 9968 .resume = wpa_driver_nl80211_resume, 9969 .send_ft_action = nl80211_send_ft_action, 9970 .signal_monitor = nl80211_signal_monitor, 9971 .signal_poll = nl80211_signal_poll, 9972 .send_frame = nl80211_send_frame, 9973 .shared_freq = wpa_driver_nl80211_shared_freq, 9974 .set_param = nl80211_set_param, 9975 .get_radio_name = nl80211_get_radio_name, 9976 .add_pmkid = nl80211_add_pmkid, 9977 .remove_pmkid = nl80211_remove_pmkid, 9978 .flush_pmkid = nl80211_flush_pmkid, 9979 .set_rekey_info = nl80211_set_rekey_info, 9980 .poll_client = nl80211_poll_client, 9981 .set_p2p_powersave = nl80211_set_p2p_powersave, 9982 .start_dfs_cac = nl80211_start_radar_detection, 9983 .stop_ap = wpa_driver_nl80211_stop_ap, 9984#ifdef CONFIG_TDLS 9985 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 9986 .tdls_oper = nl80211_tdls_oper, 9987#endif /* CONFIG_TDLS */ 9988 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 9989#ifdef ANDROID_P2P 9990 .set_noa = wpa_driver_set_p2p_noa, 9991 .get_noa = wpa_driver_get_p2p_noa, 9992 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 9993#endif 9994#ifdef ANDROID 9995 .driver_cmd = wpa_driver_nl80211_driver_cmd, 9996#endif 9997}; 9998