driver_nl80211.c revision 07c8efbbf7c11c96b15ce21425292ba7c07f35ab
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_DEBUG, "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 wpa_driver_nl80211_data *drv, 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 if (timed_out && addr) { 1495 mlme_timeout_event(drv, cmd, addr); 1496 return; 1497 } 1498 1499 if (frame == NULL) { 1500 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " 1501 "data", cmd); 1502 return; 1503 } 1504 1505 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd); 1506 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1507 nla_data(frame), nla_len(frame)); 1508 1509 switch (cmd) { 1510 case NL80211_CMD_AUTHENTICATE: 1511 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1512 break; 1513 case NL80211_CMD_ASSOCIATE: 1514 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1515 break; 1516 case NL80211_CMD_DEAUTHENTICATE: 1517 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1518 nla_data(frame), nla_len(frame)); 1519 break; 1520 case NL80211_CMD_DISASSOCIATE: 1521 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1522 nla_data(frame), nla_len(frame)); 1523 break; 1524 case NL80211_CMD_FRAME: 1525 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1526 nla_len(frame)); 1527 break; 1528 case NL80211_CMD_FRAME_TX_STATUS: 1529 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1530 nla_len(frame), ack); 1531 break; 1532 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1533 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1534 nla_data(frame), nla_len(frame)); 1535 break; 1536 case NL80211_CMD_UNPROT_DISASSOCIATE: 1537 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1538 nla_data(frame), nla_len(frame)); 1539 break; 1540 default: 1541 break; 1542 } 1543} 1544 1545 1546static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1547 struct nlattr *tb[]) 1548{ 1549 union wpa_event_data data; 1550 1551 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1552 os_memset(&data, 0, sizeof(data)); 1553 if (tb[NL80211_ATTR_MAC]) { 1554 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1555 nla_data(tb[NL80211_ATTR_MAC]), 1556 nla_len(tb[NL80211_ATTR_MAC])); 1557 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1558 } 1559 if (tb[NL80211_ATTR_KEY_SEQ]) { 1560 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1561 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1562 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1563 } 1564 if (tb[NL80211_ATTR_KEY_TYPE]) { 1565 enum nl80211_key_type key_type = 1566 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1567 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1568 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1569 data.michael_mic_failure.unicast = 1; 1570 } else 1571 data.michael_mic_failure.unicast = 1; 1572 1573 if (tb[NL80211_ATTR_KEY_IDX]) { 1574 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1575 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1576 } 1577 1578 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1579} 1580 1581 1582static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1583 struct nlattr *tb[]) 1584{ 1585 if (tb[NL80211_ATTR_MAC] == NULL) { 1586 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1587 "event"); 1588 return; 1589 } 1590 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1591 drv->associated = 1; 1592 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1593 MAC2STR(drv->bssid)); 1594 1595 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1596} 1597 1598 1599static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1600 int cancel_event, struct nlattr *tb[]) 1601{ 1602 unsigned int freq, chan_type, duration; 1603 union wpa_event_data data; 1604 u64 cookie; 1605 1606 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1607 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1608 else 1609 freq = 0; 1610 1611 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1612 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1613 else 1614 chan_type = 0; 1615 1616 if (tb[NL80211_ATTR_DURATION]) 1617 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1618 else 1619 duration = 0; 1620 1621 if (tb[NL80211_ATTR_COOKIE]) 1622 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1623 else 1624 cookie = 0; 1625 1626 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1627 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1628 cancel_event, freq, chan_type, duration, 1629 (long long unsigned int) cookie, 1630 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1631 1632 if (cookie != drv->remain_on_chan_cookie) 1633 return; /* not for us */ 1634 1635 if (cancel_event) 1636 drv->pending_remain_on_chan = 0; 1637 1638 os_memset(&data, 0, sizeof(data)); 1639 data.remain_on_channel.freq = freq; 1640 data.remain_on_channel.duration = duration; 1641 wpa_supplicant_event(drv->ctx, cancel_event ? 1642 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1643 EVENT_REMAIN_ON_CHANNEL, &data); 1644} 1645 1646 1647static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1648 struct nlattr *tb[]) 1649{ 1650 union wpa_event_data data; 1651 1652 os_memset(&data, 0, sizeof(data)); 1653 1654 if (tb[NL80211_ATTR_IE]) { 1655 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1656 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1657 } 1658 1659 if (tb[NL80211_ATTR_IE_RIC]) { 1660 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1661 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1662 } 1663 1664 if (tb[NL80211_ATTR_MAC]) 1665 os_memcpy(data.ft_ies.target_ap, 1666 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1667 1668 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1669 MAC2STR(data.ft_ies.target_ap)); 1670 1671 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1672} 1673 1674 1675static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1676 struct nlattr *tb[]) 1677{ 1678 union wpa_event_data event; 1679 struct nlattr *nl; 1680 int rem; 1681 struct scan_info *info; 1682#define MAX_REPORT_FREQS 50 1683 int freqs[MAX_REPORT_FREQS]; 1684 int num_freqs = 0; 1685 1686 if (drv->scan_for_auth) { 1687 drv->scan_for_auth = 0; 1688 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1689 "cfg80211 BSS entry"); 1690 wpa_driver_nl80211_authenticate_retry(drv); 1691 return; 1692 } 1693 1694 os_memset(&event, 0, sizeof(event)); 1695 info = &event.scan_info; 1696 info->aborted = aborted; 1697 1698 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1699 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1700 struct wpa_driver_scan_ssid *s = 1701 &info->ssids[info->num_ssids]; 1702 s->ssid = nla_data(nl); 1703 s->ssid_len = nla_len(nl); 1704 info->num_ssids++; 1705 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1706 break; 1707 } 1708 } 1709 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1710 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1711 { 1712 freqs[num_freqs] = nla_get_u32(nl); 1713 num_freqs++; 1714 if (num_freqs == MAX_REPORT_FREQS - 1) 1715 break; 1716 } 1717 info->freqs = freqs; 1718 info->num_freqs = num_freqs; 1719 } 1720 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1721} 1722 1723 1724static int get_link_signal(struct nl_msg *msg, void *arg) 1725{ 1726 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1727 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1728 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1729 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1730 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1731 }; 1732 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1733 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1734 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1735 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1736 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1737 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1738 }; 1739 struct wpa_signal_info *sig_change = arg; 1740 1741 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1742 genlmsg_attrlen(gnlh, 0), NULL); 1743 if (!tb[NL80211_ATTR_STA_INFO] || 1744 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 1745 tb[NL80211_ATTR_STA_INFO], policy)) 1746 return NL_SKIP; 1747 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 1748 return NL_SKIP; 1749 1750 sig_change->current_signal = 1751 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 1752 1753 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 1754 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 1755 sinfo[NL80211_STA_INFO_TX_BITRATE], 1756 rate_policy)) { 1757 sig_change->current_txrate = 0; 1758 } else { 1759 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 1760 sig_change->current_txrate = 1761 nla_get_u16(rinfo[ 1762 NL80211_RATE_INFO_BITRATE]) * 100; 1763 } 1764 } 1765 } 1766 1767 return NL_SKIP; 1768} 1769 1770 1771static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 1772 struct wpa_signal_info *sig) 1773{ 1774 struct nl_msg *msg; 1775 1776 sig->current_signal = -9999; 1777 sig->current_txrate = 0; 1778 1779 msg = nlmsg_alloc(); 1780 if (!msg) 1781 return -ENOMEM; 1782 1783 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 1784 1785 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1786 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 1787 1788 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 1789 nla_put_failure: 1790 nlmsg_free(msg); 1791 return -ENOBUFS; 1792} 1793 1794 1795static int get_link_noise(struct nl_msg *msg, void *arg) 1796{ 1797 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1798 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1799 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1800 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1801 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1802 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1803 }; 1804 struct wpa_signal_info *sig_change = arg; 1805 1806 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1807 genlmsg_attrlen(gnlh, 0), NULL); 1808 1809 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1810 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 1811 return NL_SKIP; 1812 } 1813 1814 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1815 tb[NL80211_ATTR_SURVEY_INFO], 1816 survey_policy)) { 1817 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 1818 "attributes!"); 1819 return NL_SKIP; 1820 } 1821 1822 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1823 return NL_SKIP; 1824 1825 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1826 sig_change->frequency) 1827 return NL_SKIP; 1828 1829 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1830 return NL_SKIP; 1831 1832 sig_change->current_noise = 1833 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1834 1835 return NL_SKIP; 1836} 1837 1838 1839static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 1840 struct wpa_signal_info *sig_change) 1841{ 1842 struct nl_msg *msg; 1843 1844 sig_change->current_noise = 9999; 1845 sig_change->frequency = drv->assoc_freq; 1846 1847 msg = nlmsg_alloc(); 1848 if (!msg) 1849 return -ENOMEM; 1850 1851 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1852 1853 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1854 1855 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 1856 nla_put_failure: 1857 nlmsg_free(msg); 1858 return -ENOBUFS; 1859} 1860 1861 1862static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 1863{ 1864 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1865 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1866 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1867 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1868 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1869 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1870 }; 1871 struct wpa_scan_results *scan_results = arg; 1872 struct wpa_scan_res *scan_res; 1873 size_t i; 1874 1875 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1876 genlmsg_attrlen(gnlh, 0), NULL); 1877 1878 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1879 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 1880 return NL_SKIP; 1881 } 1882 1883 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1884 tb[NL80211_ATTR_SURVEY_INFO], 1885 survey_policy)) { 1886 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 1887 "attributes"); 1888 return NL_SKIP; 1889 } 1890 1891 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1892 return NL_SKIP; 1893 1894 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1895 return NL_SKIP; 1896 1897 for (i = 0; i < scan_results->num; ++i) { 1898 scan_res = scan_results->res[i]; 1899 if (!scan_res) 1900 continue; 1901 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1902 scan_res->freq) 1903 continue; 1904 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 1905 continue; 1906 scan_res->noise = (s8) 1907 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1908 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 1909 } 1910 1911 return NL_SKIP; 1912} 1913 1914 1915static int nl80211_get_noise_for_scan_results( 1916 struct wpa_driver_nl80211_data *drv, 1917 struct wpa_scan_results *scan_res) 1918{ 1919 struct nl_msg *msg; 1920 1921 msg = nlmsg_alloc(); 1922 if (!msg) 1923 return -ENOMEM; 1924 1925 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1926 1927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1928 1929 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 1930 scan_res); 1931 nla_put_failure: 1932 nlmsg_free(msg); 1933 return -ENOBUFS; 1934} 1935 1936 1937static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 1938 struct nlattr *tb[]) 1939{ 1940 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 1941 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 1942 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 1943 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 1944 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 1945 }; 1946 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 1947 enum nl80211_cqm_rssi_threshold_event event; 1948 union wpa_event_data ed; 1949 struct wpa_signal_info sig; 1950 int res; 1951 1952 if (tb[NL80211_ATTR_CQM] == NULL || 1953 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 1954 cqm_policy)) { 1955 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 1956 return; 1957 } 1958 1959 os_memset(&ed, 0, sizeof(ed)); 1960 1961 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 1962 if (!tb[NL80211_ATTR_MAC]) 1963 return; 1964 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 1965 ETH_ALEN); 1966 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 1967 return; 1968 } 1969 1970 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 1971 return; 1972 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 1973 1974 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 1975 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 1976 "event: RSSI high"); 1977 ed.signal_change.above_threshold = 1; 1978 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 1979 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 1980 "event: RSSI low"); 1981 ed.signal_change.above_threshold = 0; 1982 } else 1983 return; 1984 1985 res = nl80211_get_link_signal(drv, &sig); 1986 if (res == 0) { 1987 ed.signal_change.current_signal = sig.current_signal; 1988 ed.signal_change.current_txrate = sig.current_txrate; 1989 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 1990 sig.current_signal, sig.current_txrate); 1991 } 1992 1993 res = nl80211_get_link_noise(drv, &sig); 1994 if (res == 0) { 1995 ed.signal_change.current_noise = sig.current_noise; 1996 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 1997 sig.current_noise); 1998 } 1999 2000 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2001} 2002 2003 2004static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2005 struct nlattr **tb) 2006{ 2007 u8 *addr; 2008 union wpa_event_data data; 2009 2010 if (tb[NL80211_ATTR_MAC] == NULL) 2011 return; 2012 addr = nla_data(tb[NL80211_ATTR_MAC]); 2013 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2014 2015 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2016 u8 *ies = NULL; 2017 size_t ies_len = 0; 2018 if (tb[NL80211_ATTR_IE]) { 2019 ies = nla_data(tb[NL80211_ATTR_IE]); 2020 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2021 } 2022 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2023 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2024 return; 2025 } 2026 2027 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2028 return; 2029 2030 os_memset(&data, 0, sizeof(data)); 2031 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2032 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2033} 2034 2035 2036static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2037 struct nlattr **tb) 2038{ 2039 u8 *addr; 2040 union wpa_event_data data; 2041 2042 if (tb[NL80211_ATTR_MAC] == NULL) 2043 return; 2044 addr = nla_data(tb[NL80211_ATTR_MAC]); 2045 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2046 MAC2STR(addr)); 2047 2048 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2049 drv_event_disassoc(drv->ctx, addr); 2050 return; 2051 } 2052 2053 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2054 return; 2055 2056 os_memset(&data, 0, sizeof(data)); 2057 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2058 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2059} 2060 2061 2062static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2063 struct nlattr **tb) 2064{ 2065 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2066 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2067 [NL80211_REKEY_DATA_KEK] = { 2068 .minlen = NL80211_KEK_LEN, 2069 .maxlen = NL80211_KEK_LEN, 2070 }, 2071 [NL80211_REKEY_DATA_KCK] = { 2072 .minlen = NL80211_KCK_LEN, 2073 .maxlen = NL80211_KCK_LEN, 2074 }, 2075 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2076 .minlen = NL80211_REPLAY_CTR_LEN, 2077 .maxlen = NL80211_REPLAY_CTR_LEN, 2078 }, 2079 }; 2080 union wpa_event_data data; 2081 2082 if (!tb[NL80211_ATTR_MAC]) 2083 return; 2084 if (!tb[NL80211_ATTR_REKEY_DATA]) 2085 return; 2086 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2087 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2088 return; 2089 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2090 return; 2091 2092 os_memset(&data, 0, sizeof(data)); 2093 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2094 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2095 MAC2STR(data.driver_gtk_rekey.bssid)); 2096 data.driver_gtk_rekey.replay_ctr = 2097 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2098 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2099 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2100 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2101} 2102 2103 2104static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2105 struct nlattr **tb) 2106{ 2107 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2108 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2109 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2110 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2111 .minlen = ETH_ALEN, 2112 .maxlen = ETH_ALEN, 2113 }, 2114 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2115 }; 2116 union wpa_event_data data; 2117 2118 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2119 2120 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2121 return; 2122 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2123 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2124 return; 2125 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2126 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2127 return; 2128 2129 os_memset(&data, 0, sizeof(data)); 2130 os_memcpy(data.pmkid_candidate.bssid, 2131 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2132 data.pmkid_candidate.index = 2133 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2134 data.pmkid_candidate.preauth = 2135 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2136 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2137} 2138 2139 2140static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2141 struct nlattr **tb) 2142{ 2143 union wpa_event_data data; 2144 2145 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2146 2147 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2148 return; 2149 2150 os_memset(&data, 0, sizeof(data)); 2151 os_memcpy(data.client_poll.addr, 2152 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2153 2154 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2155} 2156 2157 2158static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2159 struct nlattr **tb) 2160{ 2161 union wpa_event_data data; 2162 2163 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2164 2165 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2166 return; 2167 2168 os_memset(&data, 0, sizeof(data)); 2169 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2170 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2171 case NL80211_TDLS_SETUP: 2172 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2173 MACSTR, MAC2STR(data.tdls.peer)); 2174 data.tdls.oper = TDLS_REQUEST_SETUP; 2175 break; 2176 case NL80211_TDLS_TEARDOWN: 2177 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2178 MACSTR, MAC2STR(data.tdls.peer)); 2179 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2180 break; 2181 default: 2182 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2183 "event"); 2184 return; 2185 } 2186 if (tb[NL80211_ATTR_REASON_CODE]) { 2187 data.tdls.reason_code = 2188 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2189 } 2190 2191 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2192} 2193 2194 2195static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2196 struct nlattr **tb) 2197{ 2198 union wpa_event_data data; 2199 u32 reason; 2200 2201 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2202 2203 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2204 return; 2205 2206 os_memset(&data, 0, sizeof(data)); 2207 os_memcpy(data.connect_failed_reason.addr, 2208 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2209 2210 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2211 switch (reason) { 2212 case NL80211_CONN_FAIL_MAX_CLIENTS: 2213 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2214 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2215 break; 2216 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2217 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2218 " tried to connect", 2219 MAC2STR(data.connect_failed_reason.addr)); 2220 data.connect_failed_reason.code = BLOCKED_CLIENT; 2221 break; 2222 default: 2223 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2224 "%u", reason); 2225 return; 2226 } 2227 2228 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2229} 2230 2231 2232static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2233 int wds) 2234{ 2235 struct wpa_driver_nl80211_data *drv = bss->drv; 2236 union wpa_event_data event; 2237 2238 if (!tb[NL80211_ATTR_MAC]) 2239 return; 2240 2241 os_memset(&event, 0, sizeof(event)); 2242 event.rx_from_unknown.bssid = bss->addr; 2243 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2244 event.rx_from_unknown.wds = wds; 2245 2246 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2247} 2248 2249 2250static void do_process_drv_event(struct i802_bss *bss, int cmd, 2251 struct nlattr **tb) 2252{ 2253 struct wpa_driver_nl80211_data *drv = bss->drv; 2254 2255 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2256 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2257 cmd == NL80211_CMD_SCAN_ABORTED)) { 2258 wpa_driver_nl80211_set_mode(&drv->first_bss, 2259 drv->ap_scan_as_station); 2260 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2261 } 2262 2263 switch (cmd) { 2264 case NL80211_CMD_TRIGGER_SCAN: 2265 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2266 break; 2267 case NL80211_CMD_START_SCHED_SCAN: 2268 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2269 break; 2270 case NL80211_CMD_SCHED_SCAN_STOPPED: 2271 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2272 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2273 break; 2274 case NL80211_CMD_NEW_SCAN_RESULTS: 2275 wpa_dbg(drv->ctx, MSG_DEBUG, 2276 "nl80211: New scan results available"); 2277 drv->scan_complete_events = 1; 2278 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2279 drv->ctx); 2280 send_scan_event(drv, 0, tb); 2281 break; 2282 case NL80211_CMD_SCHED_SCAN_RESULTS: 2283 wpa_dbg(drv->ctx, MSG_DEBUG, 2284 "nl80211: New sched scan results available"); 2285 send_scan_event(drv, 0, tb); 2286 break; 2287 case NL80211_CMD_SCAN_ABORTED: 2288 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2289 /* 2290 * Need to indicate that scan results are available in order 2291 * not to make wpa_supplicant stop its scanning. 2292 */ 2293 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2294 drv->ctx); 2295 send_scan_event(drv, 1, tb); 2296 break; 2297 case NL80211_CMD_AUTHENTICATE: 2298 case NL80211_CMD_ASSOCIATE: 2299 case NL80211_CMD_DEAUTHENTICATE: 2300 case NL80211_CMD_DISASSOCIATE: 2301 case NL80211_CMD_FRAME_TX_STATUS: 2302 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2303 case NL80211_CMD_UNPROT_DISASSOCIATE: 2304 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME], 2305 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2306 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2307 tb[NL80211_ATTR_COOKIE], 2308 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2309 break; 2310 case NL80211_CMD_CONNECT: 2311 case NL80211_CMD_ROAM: 2312 mlme_event_connect(drv, cmd, 2313 tb[NL80211_ATTR_STATUS_CODE], 2314 tb[NL80211_ATTR_MAC], 2315 tb[NL80211_ATTR_REQ_IE], 2316 tb[NL80211_ATTR_RESP_IE]); 2317 break; 2318 case NL80211_CMD_CH_SWITCH_NOTIFY: 2319 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2320 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2321 break; 2322 case NL80211_CMD_DISCONNECT: 2323 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2324 tb[NL80211_ATTR_MAC], 2325 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2326 break; 2327 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2328 mlme_event_michael_mic_failure(bss, tb); 2329 break; 2330 case NL80211_CMD_JOIN_IBSS: 2331 mlme_event_join_ibss(drv, tb); 2332 break; 2333 case NL80211_CMD_REMAIN_ON_CHANNEL: 2334 mlme_event_remain_on_channel(drv, 0, tb); 2335 break; 2336 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2337 mlme_event_remain_on_channel(drv, 1, tb); 2338 break; 2339 case NL80211_CMD_NOTIFY_CQM: 2340 nl80211_cqm_event(drv, tb); 2341 break; 2342 case NL80211_CMD_REG_CHANGE: 2343 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2344 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2345 NULL); 2346 break; 2347 case NL80211_CMD_REG_BEACON_HINT: 2348 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2349 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2350 NULL); 2351 break; 2352 case NL80211_CMD_NEW_STATION: 2353 nl80211_new_station_event(drv, tb); 2354 break; 2355 case NL80211_CMD_DEL_STATION: 2356 nl80211_del_station_event(drv, tb); 2357 break; 2358 case NL80211_CMD_SET_REKEY_OFFLOAD: 2359 nl80211_rekey_offload_event(drv, tb); 2360 break; 2361 case NL80211_CMD_PMKSA_CANDIDATE: 2362 nl80211_pmksa_candidate_event(drv, tb); 2363 break; 2364 case NL80211_CMD_PROBE_CLIENT: 2365 nl80211_client_probe_event(drv, tb); 2366 break; 2367 case NL80211_CMD_TDLS_OPER: 2368 nl80211_tdls_oper_event(drv, tb); 2369 break; 2370 case NL80211_CMD_CONN_FAILED: 2371 nl80211_connect_failed_event(drv, tb); 2372 break; 2373 case NL80211_CMD_FT_EVENT: 2374 mlme_event_ft_event(drv, tb); 2375 break; 2376 default: 2377 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2378 "(cmd=%d)", cmd); 2379 break; 2380 } 2381} 2382 2383 2384static int process_drv_event(struct nl_msg *msg, void *arg) 2385{ 2386 struct wpa_driver_nl80211_data *drv = arg; 2387 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2388 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2389 struct i802_bss *bss; 2390 int ifidx = -1; 2391 2392 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2393 genlmsg_attrlen(gnlh, 0), NULL); 2394 2395 if (tb[NL80211_ATTR_IFINDEX]) 2396 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2397 2398 for (bss = &drv->first_bss; bss; bss = bss->next) { 2399 if (ifidx == -1 || ifidx == bss->ifindex) { 2400 do_process_drv_event(bss, gnlh->cmd, tb); 2401 return NL_SKIP; 2402 } 2403 } 2404 2405 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign " 2406 "interface (ifindex %d)", gnlh->cmd, ifidx); 2407 2408 return NL_SKIP; 2409} 2410 2411 2412static int process_global_event(struct nl_msg *msg, void *arg) 2413{ 2414 struct nl80211_global *global = arg; 2415 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2416 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2417 struct wpa_driver_nl80211_data *drv, *tmp; 2418 int ifidx = -1; 2419 struct i802_bss *bss; 2420 2421 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2422 genlmsg_attrlen(gnlh, 0), NULL); 2423 2424 if (tb[NL80211_ATTR_IFINDEX]) 2425 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2426 2427 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2428 struct wpa_driver_nl80211_data, list) { 2429 for (bss = &drv->first_bss; bss; bss = bss->next) { 2430 if (ifidx == -1 || ifidx == bss->ifindex) { 2431 do_process_drv_event(bss, gnlh->cmd, tb); 2432 return NL_SKIP; 2433 } 2434 } 2435 } 2436 2437 return NL_SKIP; 2438} 2439 2440 2441static int process_bss_event(struct nl_msg *msg, void *arg) 2442{ 2443 struct i802_bss *bss = arg; 2444 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2445 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2446 2447 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2448 genlmsg_attrlen(gnlh, 0), NULL); 2449 2450 switch (gnlh->cmd) { 2451 case NL80211_CMD_FRAME: 2452 case NL80211_CMD_FRAME_TX_STATUS: 2453 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2454 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2455 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2456 tb[NL80211_ATTR_COOKIE], 2457 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2458 break; 2459 case NL80211_CMD_UNEXPECTED_FRAME: 2460 nl80211_spurious_frame(bss, tb, 0); 2461 break; 2462 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2463 nl80211_spurious_frame(bss, tb, 1); 2464 break; 2465 default: 2466 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2467 "(cmd=%d)", gnlh->cmd); 2468 break; 2469 } 2470 2471 return NL_SKIP; 2472} 2473 2474 2475static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2476 void *handle) 2477{ 2478 struct nl_cb *cb = eloop_ctx; 2479 2480 wpa_printf(MSG_DEBUG, "nl80211: Event message available"); 2481 2482 nl_recvmsgs(handle, cb); 2483} 2484 2485 2486/** 2487 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2488 * @priv: driver_nl80211 private data 2489 * @alpha2_arg: country to which to switch to 2490 * Returns: 0 on success, -1 on failure 2491 * 2492 * This asks nl80211 to set the regulatory domain for given 2493 * country ISO / IEC alpha2. 2494 */ 2495static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2496{ 2497 struct i802_bss *bss = priv; 2498 struct wpa_driver_nl80211_data *drv = bss->drv; 2499 char alpha2[3]; 2500 struct nl_msg *msg; 2501 2502 msg = nlmsg_alloc(); 2503 if (!msg) 2504 return -ENOMEM; 2505 2506 alpha2[0] = alpha2_arg[0]; 2507 alpha2[1] = alpha2_arg[1]; 2508 alpha2[2] = '\0'; 2509 2510 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2511 2512 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2513 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2514 return -EINVAL; 2515 return 0; 2516nla_put_failure: 2517 nlmsg_free(msg); 2518 return -EINVAL; 2519} 2520 2521 2522static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2523{ 2524 u32 *feat = arg; 2525 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2526 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2527 2528 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2529 genlmsg_attrlen(gnlh, 0), NULL); 2530 2531 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2532 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2533 2534 return NL_SKIP; 2535} 2536 2537 2538static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2539{ 2540 u32 feat = 0; 2541 struct nl_msg *msg; 2542 2543 msg = nlmsg_alloc(); 2544 if (!msg) 2545 goto nla_put_failure; 2546 2547 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2548 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2549 return feat; 2550 2551 msg = NULL; 2552nla_put_failure: 2553 nlmsg_free(msg); 2554 return 0; 2555} 2556 2557 2558struct wiphy_info_data { 2559 struct wpa_driver_nl80211_data *drv; 2560 struct wpa_driver_capa *capa; 2561 2562 unsigned int error:1; 2563 unsigned int device_ap_sme:1; 2564 unsigned int poll_command_supported:1; 2565 unsigned int data_tx_status:1; 2566 unsigned int monitor_supported:1; 2567 unsigned int auth_supported:1; 2568 unsigned int connect_supported:1; 2569 unsigned int p2p_go_supported:1; 2570 unsigned int p2p_client_supported:1; 2571 unsigned int p2p_concurrent:1; 2572 unsigned int p2p_multichan_concurrent:1; 2573}; 2574 2575 2576static unsigned int probe_resp_offload_support(int supp_protocols) 2577{ 2578 unsigned int prot = 0; 2579 2580 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2581 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2582 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2583 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2584 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2585 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2586 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2587 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2588 2589 return prot; 2590} 2591 2592 2593static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2594 struct nlattr *tb) 2595{ 2596 struct nlattr *nl_mode; 2597 int i; 2598 2599 if (tb == NULL) 2600 return; 2601 2602 nla_for_each_nested(nl_mode, tb, i) { 2603 switch (nla_type(nl_mode)) { 2604 case NL80211_IFTYPE_AP: 2605 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2606 break; 2607 case NL80211_IFTYPE_ADHOC: 2608 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2609 break; 2610 case NL80211_IFTYPE_P2P_GO: 2611 info->p2p_go_supported = 1; 2612 break; 2613 case NL80211_IFTYPE_P2P_CLIENT: 2614 info->p2p_client_supported = 1; 2615 break; 2616 case NL80211_IFTYPE_MONITOR: 2617 info->monitor_supported = 1; 2618 break; 2619 } 2620 } 2621} 2622 2623 2624static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2625 struct nlattr *nl_combi) 2626{ 2627 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2628 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2629 struct nlattr *nl_limit, *nl_mode; 2630 int err, rem_limit, rem_mode; 2631 int combination_has_p2p = 0, combination_has_mgd = 0; 2632 static struct nla_policy 2633 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2634 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2635 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2636 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2637 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2638 }, 2639 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2640 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2641 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2642 }; 2643 2644 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2645 nl_combi, iface_combination_policy); 2646 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2647 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2648 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2649 return 0; /* broken combination */ 2650 2651 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 2652 rem_limit) { 2653 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 2654 nl_limit, iface_limit_policy); 2655 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 2656 return 0; /* broken combination */ 2657 2658 nla_for_each_nested(nl_mode, 2659 tb_limit[NL80211_IFACE_LIMIT_TYPES], 2660 rem_mode) { 2661 int ift = nla_type(nl_mode); 2662 if (ift == NL80211_IFTYPE_P2P_GO || 2663 ift == NL80211_IFTYPE_P2P_CLIENT) 2664 combination_has_p2p = 1; 2665 if (ift == NL80211_IFTYPE_STATION) 2666 combination_has_mgd = 1; 2667 } 2668 if (combination_has_p2p && combination_has_mgd) 2669 break; 2670 } 2671 2672 if (combination_has_p2p && combination_has_mgd) { 2673 info->p2p_concurrent = 1; 2674 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1) 2675 info->p2p_multichan_concurrent = 1; 2676 return 1; 2677 } 2678 2679 return 0; 2680} 2681 2682 2683static void wiphy_info_iface_comb(struct wiphy_info_data *info, 2684 struct nlattr *tb) 2685{ 2686 struct nlattr *nl_combi; 2687 int rem_combi; 2688 2689 if (tb == NULL) 2690 return; 2691 2692 nla_for_each_nested(nl_combi, tb, rem_combi) { 2693 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 2694 break; 2695 } 2696} 2697 2698 2699static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 2700 struct nlattr *tb) 2701{ 2702 struct nlattr *nl_cmd; 2703 int i; 2704 2705 if (tb == NULL) 2706 return; 2707 2708 nla_for_each_nested(nl_cmd, tb, i) { 2709 switch (nla_get_u32(nl_cmd)) { 2710 case NL80211_CMD_AUTHENTICATE: 2711 info->auth_supported = 1; 2712 break; 2713 case NL80211_CMD_CONNECT: 2714 info->connect_supported = 1; 2715 break; 2716 case NL80211_CMD_START_SCHED_SCAN: 2717 info->capa->sched_scan_supported = 1; 2718 break; 2719 case NL80211_CMD_PROBE_CLIENT: 2720 info->poll_command_supported = 1; 2721 break; 2722 } 2723 } 2724} 2725 2726 2727static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 2728 struct nlattr *tb) 2729{ 2730 /* default to 5000 since early versions of mac80211 don't set it */ 2731 capa->max_remain_on_chan = 5000; 2732 2733 if (tb) 2734 capa->max_remain_on_chan = nla_get_u32(tb); 2735} 2736 2737 2738static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 2739 struct nlattr *ext_setup) 2740{ 2741 if (tdls == NULL) 2742 return; 2743 2744 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 2745 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 2746 2747 if (ext_setup) { 2748 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 2749 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 2750 } 2751} 2752 2753 2754static void wiphy_info_feature_flags(struct wiphy_info_data *info, 2755 struct nlattr *tb) 2756{ 2757 u32 flags; 2758 struct wpa_driver_capa *capa = info->capa; 2759 2760 if (tb == NULL) 2761 return; 2762 2763 flags = nla_get_u32(tb); 2764 2765 if (flags & NL80211_FEATURE_SK_TX_STATUS) 2766 info->data_tx_status = 1; 2767 2768 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 2769 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 2770 2771 if (flags & NL80211_FEATURE_SAE) 2772 capa->flags |= WPA_DRIVER_FLAGS_SAE; 2773 2774 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 2775 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 2776} 2777 2778 2779static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 2780 struct nlattr *tb) 2781{ 2782 u32 protocols; 2783 2784 if (tb == NULL) 2785 return; 2786 2787 protocols = nla_get_u32(tb); 2788 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 2789 "mode"); 2790 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 2791 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 2792} 2793 2794 2795static int wiphy_info_handler(struct nl_msg *msg, void *arg) 2796{ 2797 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2798 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2799 struct wiphy_info_data *info = arg; 2800 struct wpa_driver_capa *capa = info->capa; 2801 struct wpa_driver_nl80211_data *drv = info->drv; 2802 2803 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2804 genlmsg_attrlen(gnlh, 0), NULL); 2805 2806 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 2807 capa->max_scan_ssids = 2808 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 2809 2810 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 2811 capa->max_sched_scan_ssids = 2812 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 2813 2814 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 2815 capa->max_match_sets = 2816 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 2817 2818 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 2819 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 2820 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 2821 2822 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 2823 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 2824 "off-channel TX"); 2825 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 2826 } 2827 2828 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 2829 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 2830 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 2831 } 2832 2833 wiphy_info_max_roc(capa, 2834 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 2835 2836 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 2837 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 2838 2839 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 2840 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 2841 2842 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 2843 info->device_ap_sme = 1; 2844 2845 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 2846 wiphy_info_probe_resp_offload(capa, 2847 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 2848 2849 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 2850 drv->extended_capa == NULL) { 2851 drv->extended_capa = 2852 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2853 if (drv->extended_capa) { 2854 os_memcpy(drv->extended_capa, 2855 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2856 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2857 drv->extended_capa_len = 2858 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 2859 } 2860 drv->extended_capa_mask = 2861 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2862 if (drv->extended_capa_mask) { 2863 os_memcpy(drv->extended_capa_mask, 2864 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2865 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2866 } else { 2867 os_free(drv->extended_capa); 2868 drv->extended_capa = NULL; 2869 drv->extended_capa_len = 0; 2870 } 2871 } 2872 2873 return NL_SKIP; 2874} 2875 2876 2877static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 2878 struct wiphy_info_data *info) 2879{ 2880 u32 feat; 2881 struct nl_msg *msg; 2882 2883 os_memset(info, 0, sizeof(*info)); 2884 info->capa = &drv->capa; 2885 info->drv = drv; 2886 2887 msg = nlmsg_alloc(); 2888 if (!msg) 2889 return -1; 2890 2891 feat = get_nl80211_protocol_features(drv); 2892 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 2893 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 2894 else 2895 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 2896 2897 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 2898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); 2899 2900 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 2901 return -1; 2902 2903 if (info->auth_supported) 2904 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 2905 else if (!info->connect_supported) { 2906 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 2907 "authentication/association or connect commands"); 2908 info->error = 1; 2909 } 2910 2911 if (info->p2p_go_supported && info->p2p_client_supported) 2912 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 2913 if (info->p2p_concurrent) { 2914 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 2915 "interface (driver advertised support)"); 2916 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 2917 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 2918 } 2919 if (info->p2p_multichan_concurrent) { 2920 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 2921 "concurrent (driver advertised support)"); 2922 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 2923 } 2924 return 0; 2925nla_put_failure: 2926 nlmsg_free(msg); 2927 return -1; 2928} 2929 2930 2931static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 2932{ 2933 struct wiphy_info_data info; 2934 if (wpa_driver_nl80211_get_info(drv, &info)) 2935 return -1; 2936 2937 if (info.error) 2938 return -1; 2939 2940 drv->has_capability = 1; 2941 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 2942 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 2943 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 2944 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 2945 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 2946 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 2947 WPA_DRIVER_CAPA_ENC_WEP104 | 2948 WPA_DRIVER_CAPA_ENC_TKIP | 2949 WPA_DRIVER_CAPA_ENC_CCMP; 2950 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 2951 WPA_DRIVER_AUTH_SHARED | 2952 WPA_DRIVER_AUTH_LEAP; 2953 2954 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 2955 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 2956 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 2957 2958 if (!info.device_ap_sme) { 2959 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 2960 2961 /* 2962 * No AP SME is currently assumed to also indicate no AP MLME 2963 * in the driver/firmware. 2964 */ 2965 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 2966 } 2967 2968 drv->device_ap_sme = info.device_ap_sme; 2969 drv->poll_command_supported = info.poll_command_supported; 2970 drv->data_tx_status = info.data_tx_status; 2971 2972#ifdef ANDROID_P2P 2973 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 2974 /* Driver is new enough to support monitorless mode*/ 2975 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 2976 "enough to support monitor-less mode"); 2977 drv->use_monitor = 0; 2978 } 2979#else 2980 /* 2981 * If poll command and tx status are supported, mac80211 is new enough 2982 * to have everything we need to not need monitor interfaces. 2983 */ 2984 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 2985#endif 2986 2987 if (drv->device_ap_sme && drv->use_monitor) { 2988 /* 2989 * Non-mac80211 drivers may not support monitor interface. 2990 * Make sure we do not get stuck with incorrect capability here 2991 * by explicitly testing this. 2992 */ 2993 if (!info.monitor_supported) { 2994 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 2995 "with device_ap_sme since no monitor mode " 2996 "support detected"); 2997 drv->use_monitor = 0; 2998 } 2999 } 3000 3001 /* 3002 * If we aren't going to use monitor interfaces, but the 3003 * driver doesn't support data TX status, we won't get TX 3004 * status for EAPOL frames. 3005 */ 3006 if (!drv->use_monitor && !info.data_tx_status) 3007 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3008 3009 return 0; 3010} 3011 3012 3013#ifdef ANDROID 3014static int android_genl_ctrl_resolve(struct nl_handle *handle, 3015 const char *name) 3016{ 3017 /* 3018 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3019 * need to work around that. 3020 */ 3021 struct nl_cache *cache = NULL; 3022 struct genl_family *nl80211 = NULL; 3023 int id = -1; 3024 3025 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3026 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3027 "netlink cache"); 3028 goto fail; 3029 } 3030 3031 nl80211 = genl_ctrl_search_by_name(cache, name); 3032 if (nl80211 == NULL) 3033 goto fail; 3034 3035 id = genl_family_get_id(nl80211); 3036 3037fail: 3038 if (nl80211) 3039 genl_family_put(nl80211); 3040 if (cache) 3041 nl_cache_free(cache); 3042 3043 return id; 3044} 3045#define genl_ctrl_resolve android_genl_ctrl_resolve 3046#endif /* ANDROID */ 3047 3048 3049static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3050{ 3051 int ret; 3052 3053 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3054 if (global->nl_cb == NULL) { 3055 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3056 "callbacks"); 3057 return -1; 3058 } 3059 3060 global->nl = nl_create_handle(global->nl_cb, "nl"); 3061 if (global->nl == NULL) 3062 goto err; 3063 3064 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3065 if (global->nl80211_id < 0) { 3066 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3067 "found"); 3068 goto err; 3069 } 3070 3071 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3072 if (global->nl_event == NULL) 3073 goto err; 3074 3075 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3076 if (ret >= 0) 3077 ret = nl_socket_add_membership(global->nl_event, ret); 3078 if (ret < 0) { 3079 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3080 "membership for scan events: %d (%s)", 3081 ret, strerror(-ret)); 3082 goto err; 3083 } 3084 3085 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3086 if (ret >= 0) 3087 ret = nl_socket_add_membership(global->nl_event, ret); 3088 if (ret < 0) { 3089 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3090 "membership for mlme events: %d (%s)", 3091 ret, strerror(-ret)); 3092 goto err; 3093 } 3094 3095 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3096 if (ret >= 0) 3097 ret = nl_socket_add_membership(global->nl_event, ret); 3098 if (ret < 0) { 3099 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3100 "membership for regulatory events: %d (%s)", 3101 ret, strerror(-ret)); 3102 /* Continue without regulatory events */ 3103 } 3104 3105 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3106 no_seq_check, NULL); 3107 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3108 process_global_event, global); 3109 3110 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3111 wpa_driver_nl80211_event_receive, 3112 global->nl_cb, global->nl_event); 3113 3114 return 0; 3115 3116err: 3117 nl_destroy_handles(&global->nl_event); 3118 nl_destroy_handles(&global->nl); 3119 nl_cb_put(global->nl_cb); 3120 global->nl_cb = NULL; 3121 return -1; 3122} 3123 3124 3125static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3126{ 3127 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3128 if (!drv->nl_cb) { 3129 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3130 return -1; 3131 } 3132 3133 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3134 no_seq_check, NULL); 3135 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3136 process_drv_event, drv); 3137 3138 return 0; 3139} 3140 3141 3142static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3143{ 3144 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3145 /* 3146 * This may be for any interface; use ifdown event to disable 3147 * interface. 3148 */ 3149} 3150 3151 3152static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3153{ 3154 struct wpa_driver_nl80211_data *drv = ctx; 3155 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3156 if (linux_set_iface_flags(drv->global->ioctl_sock, 3157 drv->first_bss.ifname, 1)) { 3158 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3159 "after rfkill unblock"); 3160 return; 3161 } 3162 /* rtnetlink ifup handler will report interface as enabled */ 3163} 3164 3165 3166static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv) 3167{ 3168 /* Find phy (radio) to which this interface belongs */ 3169 char buf[90], *pos; 3170 int f, rv; 3171 3172 drv->phyname[0] = '\0'; 3173 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name", 3174 drv->first_bss.ifname); 3175 f = open(buf, O_RDONLY); 3176 if (f < 0) { 3177 wpa_printf(MSG_DEBUG, "Could not open file %s: %s", 3178 buf, strerror(errno)); 3179 return; 3180 } 3181 3182 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1); 3183 close(f); 3184 if (rv < 0) { 3185 wpa_printf(MSG_DEBUG, "Could not read file %s: %s", 3186 buf, strerror(errno)); 3187 return; 3188 } 3189 3190 drv->phyname[rv] = '\0'; 3191 pos = os_strchr(drv->phyname, '\n'); 3192 if (pos) 3193 *pos = '\0'; 3194 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 3195 drv->first_bss.ifname, drv->phyname); 3196} 3197 3198 3199static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3200 void *eloop_ctx, 3201 void *handle) 3202{ 3203 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3204 u8 data[2048]; 3205 struct msghdr msg; 3206 struct iovec entry; 3207 u8 control[512]; 3208 struct cmsghdr *cmsg; 3209 int res, found_ee = 0, found_wifi = 0, acked = 0; 3210 union wpa_event_data event; 3211 3212 memset(&msg, 0, sizeof(msg)); 3213 msg.msg_iov = &entry; 3214 msg.msg_iovlen = 1; 3215 entry.iov_base = data; 3216 entry.iov_len = sizeof(data); 3217 msg.msg_control = &control; 3218 msg.msg_controllen = sizeof(control); 3219 3220 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3221 /* if error or not fitting 802.3 header, return */ 3222 if (res < 14) 3223 return; 3224 3225 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3226 { 3227 if (cmsg->cmsg_level == SOL_SOCKET && 3228 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3229 int *ack; 3230 3231 found_wifi = 1; 3232 ack = (void *)CMSG_DATA(cmsg); 3233 acked = *ack; 3234 } 3235 3236 if (cmsg->cmsg_level == SOL_PACKET && 3237 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3238 struct sock_extended_err *err = 3239 (struct sock_extended_err *)CMSG_DATA(cmsg); 3240 3241 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3242 found_ee = 1; 3243 } 3244 } 3245 3246 if (!found_ee || !found_wifi) 3247 return; 3248 3249 memset(&event, 0, sizeof(event)); 3250 event.eapol_tx_status.dst = data; 3251 event.eapol_tx_status.data = data + 14; 3252 event.eapol_tx_status.data_len = res - 14; 3253 event.eapol_tx_status.ack = acked; 3254 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3255} 3256 3257 3258static int nl80211_init_bss(struct i802_bss *bss) 3259{ 3260 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3261 if (!bss->nl_cb) 3262 return -1; 3263 3264 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3265 no_seq_check, NULL); 3266 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3267 process_bss_event, bss); 3268 3269 return 0; 3270} 3271 3272 3273static void nl80211_destroy_bss(struct i802_bss *bss) 3274{ 3275 nl_cb_put(bss->nl_cb); 3276 bss->nl_cb = NULL; 3277} 3278 3279 3280/** 3281 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3282 * @ctx: context to be used when calling wpa_supplicant functions, 3283 * e.g., wpa_supplicant_event() 3284 * @ifname: interface name, e.g., wlan0 3285 * @global_priv: private driver global data from global_init() 3286 * Returns: Pointer to private data, %NULL on failure 3287 */ 3288static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3289 void *global_priv) 3290{ 3291 struct wpa_driver_nl80211_data *drv; 3292 struct rfkill_config *rcfg; 3293 struct i802_bss *bss; 3294 3295 if (global_priv == NULL) 3296 return NULL; 3297 drv = os_zalloc(sizeof(*drv)); 3298 if (drv == NULL) 3299 return NULL; 3300 drv->global = global_priv; 3301 drv->ctx = ctx; 3302 bss = &drv->first_bss; 3303 bss->drv = drv; 3304 bss->ctx = ctx; 3305 3306 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3307 drv->monitor_ifidx = -1; 3308 drv->monitor_sock = -1; 3309 drv->eapol_tx_sock = -1; 3310 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3311 3312 if (wpa_driver_nl80211_init_nl(drv)) { 3313 os_free(drv); 3314 return NULL; 3315 } 3316 3317 if (nl80211_init_bss(bss)) 3318 goto failed; 3319 3320 nl80211_get_phy_name(drv); 3321 3322 rcfg = os_zalloc(sizeof(*rcfg)); 3323 if (rcfg == NULL) 3324 goto failed; 3325 rcfg->ctx = drv; 3326 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3327 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3328 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3329 drv->rfkill = rfkill_init(rcfg); 3330 if (drv->rfkill == NULL) { 3331 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3332 os_free(rcfg); 3333 } 3334 3335 if (wpa_driver_nl80211_finish_drv_init(drv)) 3336 goto failed; 3337 3338 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3339 if (drv->eapol_tx_sock < 0) 3340 goto failed; 3341 3342 if (drv->data_tx_status) { 3343 int enabled = 1; 3344 3345 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3346 &enabled, sizeof(enabled)) < 0) { 3347 wpa_printf(MSG_DEBUG, 3348 "nl80211: wifi status sockopt failed\n"); 3349 drv->data_tx_status = 0; 3350 if (!drv->use_monitor) 3351 drv->capa.flags &= 3352 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3353 } else { 3354 eloop_register_read_sock(drv->eapol_tx_sock, 3355 wpa_driver_nl80211_handle_eapol_tx_status, 3356 drv, NULL); 3357 } 3358 } 3359 3360 if (drv->global) { 3361 dl_list_add(&drv->global->interfaces, &drv->list); 3362 drv->in_interface_list = 1; 3363 } 3364 3365 return bss; 3366 3367failed: 3368 wpa_driver_nl80211_deinit(bss); 3369 return NULL; 3370} 3371 3372 3373static int nl80211_register_frame(struct i802_bss *bss, 3374 struct nl_handle *nl_handle, 3375 u16 type, const u8 *match, size_t match_len) 3376{ 3377 struct wpa_driver_nl80211_data *drv = bss->drv; 3378 struct nl_msg *msg; 3379 int ret = -1; 3380 3381 msg = nlmsg_alloc(); 3382 if (!msg) 3383 return -1; 3384 3385 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3386 type, nl_handle); 3387 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3388 match, match_len); 3389 3390 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3391 3392 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3393 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3394 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3395 3396 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3397 msg = NULL; 3398 if (ret) { 3399 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3400 "failed (type=%u): ret=%d (%s)", 3401 type, ret, strerror(-ret)); 3402 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3403 match, match_len); 3404 goto nla_put_failure; 3405 } 3406 ret = 0; 3407nla_put_failure: 3408 nlmsg_free(msg); 3409 return ret; 3410} 3411 3412 3413static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3414{ 3415 struct wpa_driver_nl80211_data *drv = bss->drv; 3416 3417 if (bss->nl_mgmt) { 3418 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3419 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3420 return -1; 3421 } 3422 3423 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3424 if (bss->nl_mgmt == NULL) 3425 return -1; 3426 3427 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3428 wpa_driver_nl80211_event_receive, bss->nl_cb, 3429 bss->nl_mgmt); 3430 3431 return 0; 3432} 3433 3434 3435static int nl80211_register_action_frame(struct i802_bss *bss, 3436 const u8 *match, size_t match_len) 3437{ 3438 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3439 return nl80211_register_frame(bss, bss->nl_mgmt, 3440 type, match, match_len); 3441} 3442 3443 3444static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3445{ 3446 struct wpa_driver_nl80211_data *drv = bss->drv; 3447 3448 if (nl80211_alloc_mgmt_handle(bss)) 3449 return -1; 3450 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3451 "handle %p", bss->nl_mgmt); 3452 3453#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3454 /* GAS Initial Request */ 3455 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3456 return -1; 3457 /* GAS Initial Response */ 3458 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3459 return -1; 3460 /* GAS Comeback Request */ 3461 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3462 return -1; 3463 /* GAS Comeback Response */ 3464 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3465 return -1; 3466#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3467#ifdef CONFIG_P2P 3468 /* P2P Public Action */ 3469 if (nl80211_register_action_frame(bss, 3470 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3471 6) < 0) 3472 return -1; 3473 /* P2P Action */ 3474 if (nl80211_register_action_frame(bss, 3475 (u8 *) "\x7f\x50\x6f\x9a\x09", 3476 5) < 0) 3477 return -1; 3478#endif /* CONFIG_P2P */ 3479#ifdef CONFIG_IEEE80211W 3480 /* SA Query Response */ 3481 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3482 return -1; 3483#endif /* CONFIG_IEEE80211W */ 3484#ifdef CONFIG_TDLS 3485 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3486 /* TDLS Discovery Response */ 3487 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3488 0) 3489 return -1; 3490 } 3491#endif /* CONFIG_TDLS */ 3492 3493 /* FT Action frames */ 3494 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3495 return -1; 3496 else 3497 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3498 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3499 3500 /* WNM - BSS Transition Management Request */ 3501 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3502 return -1; 3503 /* WNM-Sleep Mode Response */ 3504 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3505 return -1; 3506 3507 return 0; 3508} 3509 3510 3511static int nl80211_register_spurious_class3(struct i802_bss *bss) 3512{ 3513 struct wpa_driver_nl80211_data *drv = bss->drv; 3514 struct nl_msg *msg; 3515 int ret = -1; 3516 3517 msg = nlmsg_alloc(); 3518 if (!msg) 3519 return -1; 3520 3521 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3522 3523 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3524 3525 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3526 msg = NULL; 3527 if (ret) { 3528 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3529 "failed: ret=%d (%s)", 3530 ret, strerror(-ret)); 3531 goto nla_put_failure; 3532 } 3533 ret = 0; 3534nla_put_failure: 3535 nlmsg_free(msg); 3536 return ret; 3537} 3538 3539 3540static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3541{ 3542 static const int stypes[] = { 3543 WLAN_FC_STYPE_AUTH, 3544 WLAN_FC_STYPE_ASSOC_REQ, 3545 WLAN_FC_STYPE_REASSOC_REQ, 3546 WLAN_FC_STYPE_DISASSOC, 3547 WLAN_FC_STYPE_DEAUTH, 3548 WLAN_FC_STYPE_ACTION, 3549 WLAN_FC_STYPE_PROBE_REQ, 3550/* Beacon doesn't work as mac80211 doesn't currently allow 3551 * it, but it wouldn't really be the right thing anyway as 3552 * it isn't per interface ... maybe just dump the scan 3553 * results periodically for OLBC? 3554 */ 3555// WLAN_FC_STYPE_BEACON, 3556 }; 3557 unsigned int i; 3558 3559 if (nl80211_alloc_mgmt_handle(bss)) 3560 return -1; 3561 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3562 "handle %p", bss->nl_mgmt); 3563 3564 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3565 if (nl80211_register_frame(bss, bss->nl_mgmt, 3566 (WLAN_FC_TYPE_MGMT << 2) | 3567 (stypes[i] << 4), 3568 NULL, 0) < 0) { 3569 goto out_err; 3570 } 3571 } 3572 3573 if (nl80211_register_spurious_class3(bss)) 3574 goto out_err; 3575 3576 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3577 goto out_err; 3578 3579 return 0; 3580 3581out_err: 3582 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3583 nl_destroy_handles(&bss->nl_mgmt); 3584 return -1; 3585} 3586 3587 3588static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3589{ 3590 if (nl80211_alloc_mgmt_handle(bss)) 3591 return -1; 3592 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3593 "handle %p (device SME)", bss->nl_mgmt); 3594 3595 if (nl80211_register_frame(bss, bss->nl_mgmt, 3596 (WLAN_FC_TYPE_MGMT << 2) | 3597 (WLAN_FC_STYPE_ACTION << 4), 3598 NULL, 0) < 0) 3599 goto out_err; 3600 3601 return 0; 3602 3603out_err: 3604 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3605 nl_destroy_handles(&bss->nl_mgmt); 3606 return -1; 3607} 3608 3609 3610static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3611{ 3612 if (bss->nl_mgmt == NULL) 3613 return; 3614 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3615 "(%s)", bss->nl_mgmt, reason); 3616 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3617 nl_destroy_handles(&bss->nl_mgmt); 3618 3619 nl80211_put_wiphy_data_ap(bss); 3620} 3621 3622 3623static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3624{ 3625 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3626} 3627 3628 3629static int 3630wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 3631{ 3632 struct i802_bss *bss = &drv->first_bss; 3633 int send_rfkill_event = 0; 3634 3635 drv->ifindex = if_nametoindex(bss->ifname); 3636 drv->first_bss.ifindex = drv->ifindex; 3637 3638#ifndef HOSTAPD 3639 /* 3640 * Make sure the interface starts up in station mode unless this is a 3641 * dynamically added interface (e.g., P2P) that was already configured 3642 * with proper iftype. 3643 */ 3644 if (drv->ifindex != drv->global->if_add_ifindex && 3645 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) { 3646 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to " 3647 "use managed mode"); 3648 return -1; 3649 } 3650 3651 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 3652 if (rfkill_is_blocked(drv->rfkill)) { 3653 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 3654 "interface '%s' due to rfkill", 3655 bss->ifname); 3656 drv->if_disabled = 1; 3657 send_rfkill_event = 1; 3658 } else { 3659 wpa_printf(MSG_ERROR, "nl80211: Could not set " 3660 "interface '%s' UP", bss->ifname); 3661 return -1; 3662 } 3663 } 3664 3665 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 3666 1, IF_OPER_DORMANT); 3667#endif /* HOSTAPD */ 3668 3669 if (wpa_driver_nl80211_capa(drv)) 3670 return -1; 3671 3672 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 3673 bss->addr)) 3674 return -1; 3675 3676 if (send_rfkill_event) { 3677 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 3678 drv, drv->ctx); 3679 } 3680 3681 return 0; 3682} 3683 3684 3685static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 3686{ 3687 struct nl_msg *msg; 3688 3689 msg = nlmsg_alloc(); 3690 if (!msg) 3691 return -ENOMEM; 3692 3693 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 3694 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 3695 3696 return send_and_recv_msgs(drv, msg, NULL, NULL); 3697 nla_put_failure: 3698 nlmsg_free(msg); 3699 return -ENOBUFS; 3700} 3701 3702 3703/** 3704 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 3705 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 3706 * 3707 * Shut down driver interface and processing of driver events. Free 3708 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 3709 */ 3710static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 3711{ 3712 struct wpa_driver_nl80211_data *drv = bss->drv; 3713 3714 bss->in_deinit = 1; 3715 if (drv->data_tx_status) 3716 eloop_unregister_read_sock(drv->eapol_tx_sock); 3717 if (drv->eapol_tx_sock >= 0) 3718 close(drv->eapol_tx_sock); 3719 3720 if (bss->nl_preq) 3721 wpa_driver_nl80211_probe_req_report(bss, 0); 3722 if (bss->added_if_into_bridge) { 3723 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 3724 bss->ifname) < 0) 3725 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3726 "interface %s from bridge %s: %s", 3727 bss->ifname, bss->brname, strerror(errno)); 3728 } 3729 if (bss->added_bridge) { 3730 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 3731 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3732 "bridge %s: %s", 3733 bss->brname, strerror(errno)); 3734 } 3735 3736 nl80211_remove_monitor_interface(drv); 3737 3738 if (is_ap_interface(drv->nlmode)) 3739 wpa_driver_nl80211_del_beacon(drv); 3740 3741#ifdef HOSTAPD 3742 if (drv->last_freq_ht) { 3743 /* Clear HT flags from the driver */ 3744 struct hostapd_freq_params freq; 3745 os_memset(&freq, 0, sizeof(freq)); 3746 freq.freq = drv->last_freq; 3747 wpa_driver_nl80211_set_freq(bss, &freq); 3748 } 3749 3750 if (drv->eapol_sock >= 0) { 3751 eloop_unregister_read_sock(drv->eapol_sock); 3752 close(drv->eapol_sock); 3753 } 3754 3755 if (drv->if_indices != drv->default_if_indices) 3756 os_free(drv->if_indices); 3757#endif /* HOSTAPD */ 3758 3759 if (drv->disabled_11b_rates) 3760 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 3761 3762 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 3763 IF_OPER_UP); 3764 rfkill_deinit(drv->rfkill); 3765 3766 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 3767 3768 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); 3769 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 3770 nl80211_mgmt_unsubscribe(bss, "deinit"); 3771 3772 nl_cb_put(drv->nl_cb); 3773 3774 nl80211_destroy_bss(&drv->first_bss); 3775 3776 os_free(drv->filter_ssids); 3777 3778 os_free(drv->auth_ie); 3779 3780 if (drv->in_interface_list) 3781 dl_list_del(&drv->list); 3782 3783 os_free(drv->extended_capa); 3784 os_free(drv->extended_capa_mask); 3785 os_free(drv); 3786} 3787 3788 3789/** 3790 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 3791 * @eloop_ctx: Driver private data 3792 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 3793 * 3794 * This function can be used as registered timeout when starting a scan to 3795 * generate a scan completed event if the driver does not report this. 3796 */ 3797static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 3798{ 3799 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3800 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 3801 wpa_driver_nl80211_set_mode(&drv->first_bss, 3802 drv->ap_scan_as_station); 3803 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3804 } 3805 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 3806 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 3807} 3808 3809 3810static struct nl_msg * 3811nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 3812 struct wpa_driver_scan_params *params) 3813{ 3814 struct nl_msg *msg; 3815 int err; 3816 size_t i; 3817 3818 msg = nlmsg_alloc(); 3819 if (!msg) 3820 return NULL; 3821 3822 nl80211_cmd(drv, msg, 0, cmd); 3823 3824 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0) 3825 goto fail; 3826 3827 if (params->num_ssids) { 3828 struct nl_msg *ssids = nlmsg_alloc(); 3829 if (ssids == NULL) 3830 goto fail; 3831 for (i = 0; i < params->num_ssids; i++) { 3832 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 3833 params->ssids[i].ssid, 3834 params->ssids[i].ssid_len); 3835 if (nla_put(ssids, i + 1, params->ssids[i].ssid_len, 3836 params->ssids[i].ssid) < 0) { 3837 nlmsg_free(ssids); 3838 goto fail; 3839 } 3840 } 3841 err = nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); 3842 nlmsg_free(ssids); 3843 if (err < 0) 3844 goto fail; 3845 } 3846 3847 if (params->extra_ies) { 3848 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 3849 params->extra_ies, params->extra_ies_len); 3850 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 3851 params->extra_ies) < 0) 3852 goto fail; 3853 } 3854 3855 if (params->freqs) { 3856 struct nl_msg *freqs = nlmsg_alloc(); 3857 if (freqs == NULL) 3858 goto fail; 3859 for (i = 0; params->freqs[i]; i++) { 3860 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 3861 "MHz", params->freqs[i]); 3862 if (nla_put_u32(freqs, i + 1, params->freqs[i]) < 0) { 3863 nlmsg_free(freqs); 3864 goto fail; 3865 } 3866 } 3867 err = nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, 3868 freqs); 3869 nlmsg_free(freqs); 3870 if (err < 0) 3871 goto fail; 3872 } 3873 3874 os_free(drv->filter_ssids); 3875 drv->filter_ssids = params->filter_ssids; 3876 params->filter_ssids = NULL; 3877 drv->num_filter_ssids = params->num_filter_ssids; 3878 3879 return msg; 3880 3881fail: 3882 nlmsg_free(msg); 3883 return NULL; 3884} 3885 3886 3887/** 3888 * wpa_driver_nl80211_scan - Request the driver to initiate scan 3889 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 3890 * @params: Scan parameters 3891 * Returns: 0 on success, -1 on failure 3892 */ 3893static int wpa_driver_nl80211_scan(struct i802_bss *bss, 3894 struct wpa_driver_scan_params *params) 3895{ 3896 struct wpa_driver_nl80211_data *drv = bss->drv; 3897 int ret = -1, timeout; 3898 struct nl_msg *msg, *rates = NULL; 3899 3900 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 3901 drv->scan_for_auth = 0; 3902 3903 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params); 3904 if (!msg) 3905 return -1; 3906 3907 if (params->p2p_probe) { 3908 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 3909 3910 rates = nlmsg_alloc(); 3911 if (rates == NULL) 3912 goto nla_put_failure; 3913 3914 /* 3915 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 3916 * by masking out everything else apart from the OFDM rates 6, 3917 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 3918 * rates are left enabled. 3919 */ 3920 NLA_PUT(rates, NL80211_BAND_2GHZ, 8, 3921 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 3922 if (nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates) < 3923 0) 3924 goto nla_put_failure; 3925 3926 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 3927 } 3928 3929 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3930 msg = NULL; 3931 if (ret) { 3932 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 3933 "(%s)", ret, strerror(-ret)); 3934#ifdef HOSTAPD 3935 if (is_ap_interface(drv->nlmode)) { 3936 /* 3937 * mac80211 does not allow scan requests in AP mode, so 3938 * try to do this in station mode. 3939 */ 3940 if (wpa_driver_nl80211_set_mode( 3941 bss, NL80211_IFTYPE_STATION)) 3942 goto nla_put_failure; 3943 3944 if (wpa_driver_nl80211_scan(bss, params)) { 3945 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 3946 goto nla_put_failure; 3947 } 3948 3949 /* Restore AP mode when processing scan results */ 3950 drv->ap_scan_as_station = drv->nlmode; 3951 ret = 0; 3952 } else 3953 goto nla_put_failure; 3954#else /* HOSTAPD */ 3955 goto nla_put_failure; 3956#endif /* HOSTAPD */ 3957 } 3958 3959 /* Not all drivers generate "scan completed" wireless event, so try to 3960 * read results after a timeout. */ 3961 timeout = 10; 3962 if (drv->scan_complete_events) { 3963 /* 3964 * The driver seems to deliver events to notify when scan is 3965 * complete, so use longer timeout to avoid race conditions 3966 * with scanning and following association request. 3967 */ 3968 timeout = 30; 3969 } 3970 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 3971 "seconds", ret, timeout); 3972 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 3973 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 3974 drv, drv->ctx); 3975 3976nla_put_failure: 3977 nlmsg_free(msg); 3978 nlmsg_free(rates); 3979 return ret; 3980} 3981 3982 3983/** 3984 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 3985 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 3986 * @params: Scan parameters 3987 * @interval: Interval between scan cycles in milliseconds 3988 * Returns: 0 on success, -1 on failure or if not supported 3989 */ 3990static int wpa_driver_nl80211_sched_scan(void *priv, 3991 struct wpa_driver_scan_params *params, 3992 u32 interval) 3993{ 3994 struct i802_bss *bss = priv; 3995 struct wpa_driver_nl80211_data *drv = bss->drv; 3996 int ret = -1; 3997 struct nl_msg *msg; 3998 struct nl_msg *match_set_ssid = NULL, *match_sets = NULL; 3999 struct nl_msg *match_set_rssi = NULL; 4000 size_t i; 4001 4002 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4003 4004#ifdef ANDROID 4005 if (!drv->capa.sched_scan_supported) 4006 return android_pno_start(bss, params); 4007#endif /* ANDROID */ 4008 4009 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params); 4010 if (!msg) 4011 goto nla_put_failure; 4012 4013 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4014 4015 if ((drv->num_filter_ssids && 4016 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4017 params->filter_rssi) { 4018 match_sets = nlmsg_alloc(); 4019 if (match_sets == NULL) 4020 goto nla_put_failure; 4021 4022 for (i = 0; i < drv->num_filter_ssids; i++) { 4023 wpa_hexdump_ascii(MSG_MSGDUMP, 4024 "nl80211: Sched scan filter SSID", 4025 drv->filter_ssids[i].ssid, 4026 drv->filter_ssids[i].ssid_len); 4027 4028 match_set_ssid = nlmsg_alloc(); 4029 if (match_set_ssid == NULL) 4030 goto nla_put_failure; 4031 NLA_PUT(match_set_ssid, 4032 NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4033 drv->filter_ssids[i].ssid_len, 4034 drv->filter_ssids[i].ssid); 4035 4036 if (nla_put_nested(match_sets, i + 1, match_set_ssid) < 4037 0) 4038 goto nla_put_failure; 4039 } 4040 4041 if (params->filter_rssi) { 4042 match_set_rssi = nlmsg_alloc(); 4043 if (match_set_rssi == NULL) 4044 goto nla_put_failure; 4045 NLA_PUT_U32(match_set_rssi, 4046 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4047 params->filter_rssi); 4048 wpa_printf(MSG_MSGDUMP, 4049 "nl80211: Sched scan RSSI filter %d dBm", 4050 params->filter_rssi); 4051 if (nla_put_nested(match_sets, 0, match_set_rssi) < 0) 4052 goto nla_put_failure; 4053 } 4054 4055 if (nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH, 4056 match_sets) < 0) 4057 goto nla_put_failure; 4058 } 4059 4060 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4061 4062 /* TODO: if we get an error here, we should fall back to normal scan */ 4063 4064 msg = NULL; 4065 if (ret) { 4066 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4067 "ret=%d (%s)", ret, strerror(-ret)); 4068 goto nla_put_failure; 4069 } 4070 4071 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4072 "scan interval %d msec", ret, interval); 4073 4074nla_put_failure: 4075 nlmsg_free(match_set_ssid); 4076 nlmsg_free(match_sets); 4077 nlmsg_free(match_set_rssi); 4078 nlmsg_free(msg); 4079 return ret; 4080} 4081 4082 4083/** 4084 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4085 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4086 * Returns: 0 on success, -1 on failure or if not supported 4087 */ 4088static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4089{ 4090 struct i802_bss *bss = priv; 4091 struct wpa_driver_nl80211_data *drv = bss->drv; 4092 int ret = 0; 4093 struct nl_msg *msg; 4094 4095#ifdef ANDROID 4096 if (!drv->capa.sched_scan_supported) 4097 return android_pno_stop(bss); 4098#endif /* ANDROID */ 4099 4100 msg = nlmsg_alloc(); 4101 if (!msg) 4102 return -1; 4103 4104 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4105 4106 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4107 4108 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4109 msg = NULL; 4110 if (ret) { 4111 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4112 "ret=%d (%s)", ret, strerror(-ret)); 4113 goto nla_put_failure; 4114 } 4115 4116 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4117 4118nla_put_failure: 4119 nlmsg_free(msg); 4120 return ret; 4121} 4122 4123 4124static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4125{ 4126 const u8 *end, *pos; 4127 4128 if (ies == NULL) 4129 return NULL; 4130 4131 pos = ies; 4132 end = ies + ies_len; 4133 4134 while (pos + 1 < end) { 4135 if (pos + 2 + pos[1] > end) 4136 break; 4137 if (pos[0] == ie) 4138 return pos; 4139 pos += 2 + pos[1]; 4140 } 4141 4142 return NULL; 4143} 4144 4145 4146static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4147 const u8 *ie, size_t ie_len) 4148{ 4149 const u8 *ssid; 4150 size_t i; 4151 4152 if (drv->filter_ssids == NULL) 4153 return 0; 4154 4155 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4156 if (ssid == NULL) 4157 return 1; 4158 4159 for (i = 0; i < drv->num_filter_ssids; i++) { 4160 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4161 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4162 0) 4163 return 0; 4164 } 4165 4166 return 1; 4167} 4168 4169 4170static int bss_info_handler(struct nl_msg *msg, void *arg) 4171{ 4172 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4173 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4174 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4175 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4176 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4177 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4178 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4179 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4180 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4181 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4182 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4183 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4184 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4185 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4186 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4187 }; 4188 struct nl80211_bss_info_arg *_arg = arg; 4189 struct wpa_scan_results *res = _arg->res; 4190 struct wpa_scan_res **tmp; 4191 struct wpa_scan_res *r; 4192 const u8 *ie, *beacon_ie; 4193 size_t ie_len, beacon_ie_len; 4194 u8 *pos; 4195 size_t i; 4196 4197 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4198 genlmsg_attrlen(gnlh, 0), NULL); 4199 if (!tb[NL80211_ATTR_BSS]) 4200 return NL_SKIP; 4201 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4202 bss_policy)) 4203 return NL_SKIP; 4204 if (bss[NL80211_BSS_STATUS]) { 4205 enum nl80211_bss_status status; 4206 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4207 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4208 bss[NL80211_BSS_FREQUENCY]) { 4209 _arg->assoc_freq = 4210 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4211 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4212 _arg->assoc_freq); 4213 } 4214 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4215 bss[NL80211_BSS_BSSID]) { 4216 os_memcpy(_arg->assoc_bssid, 4217 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4218 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4219 MACSTR, MAC2STR(_arg->assoc_bssid)); 4220 } 4221 } 4222 if (!res) 4223 return NL_SKIP; 4224 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4225 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4226 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4227 } else { 4228 ie = NULL; 4229 ie_len = 0; 4230 } 4231 if (bss[NL80211_BSS_BEACON_IES]) { 4232 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4233 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4234 } else { 4235 beacon_ie = NULL; 4236 beacon_ie_len = 0; 4237 } 4238 4239 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4240 ie ? ie_len : beacon_ie_len)) 4241 return NL_SKIP; 4242 4243 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4244 if (r == NULL) 4245 return NL_SKIP; 4246 if (bss[NL80211_BSS_BSSID]) 4247 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4248 ETH_ALEN); 4249 if (bss[NL80211_BSS_FREQUENCY]) 4250 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4251 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4252 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4253 if (bss[NL80211_BSS_CAPABILITY]) 4254 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4255 r->flags |= WPA_SCAN_NOISE_INVALID; 4256 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4257 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4258 r->level /= 100; /* mBm to dBm */ 4259 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4260 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4261 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4262 r->flags |= WPA_SCAN_QUAL_INVALID; 4263 } else 4264 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4265 if (bss[NL80211_BSS_TSF]) 4266 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4267 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4268 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4269 r->ie_len = ie_len; 4270 pos = (u8 *) (r + 1); 4271 if (ie) { 4272 os_memcpy(pos, ie, ie_len); 4273 pos += ie_len; 4274 } 4275 r->beacon_ie_len = beacon_ie_len; 4276 if (beacon_ie) 4277 os_memcpy(pos, beacon_ie, beacon_ie_len); 4278 4279 if (bss[NL80211_BSS_STATUS]) { 4280 enum nl80211_bss_status status; 4281 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4282 switch (status) { 4283 case NL80211_BSS_STATUS_AUTHENTICATED: 4284 r->flags |= WPA_SCAN_AUTHENTICATED; 4285 break; 4286 case NL80211_BSS_STATUS_ASSOCIATED: 4287 r->flags |= WPA_SCAN_ASSOCIATED; 4288 break; 4289 default: 4290 break; 4291 } 4292 } 4293 4294 /* 4295 * cfg80211 maintains separate BSS table entries for APs if the same 4296 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4297 * not use frequency as a separate key in the BSS table, so filter out 4298 * duplicated entries. Prefer associated BSS entry in such a case in 4299 * order to get the correct frequency into the BSS table. 4300 */ 4301 for (i = 0; i < res->num; i++) { 4302 const u8 *s1, *s2; 4303 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4304 continue; 4305 4306 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4307 res->res[i]->ie_len, WLAN_EID_SSID); 4308 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4309 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4310 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4311 continue; 4312 4313 /* Same BSSID,SSID was already included in scan results */ 4314 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4315 "for " MACSTR, MAC2STR(r->bssid)); 4316 4317 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4318 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4319 os_free(res->res[i]); 4320 res->res[i] = r; 4321 } else 4322 os_free(r); 4323 return NL_SKIP; 4324 } 4325 4326 tmp = os_realloc_array(res->res, res->num + 1, 4327 sizeof(struct wpa_scan_res *)); 4328 if (tmp == NULL) { 4329 os_free(r); 4330 return NL_SKIP; 4331 } 4332 tmp[res->num++] = r; 4333 res->res = tmp; 4334 4335 return NL_SKIP; 4336} 4337 4338 4339static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4340 const u8 *addr) 4341{ 4342 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4343 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4344 "mismatch (" MACSTR ")", MAC2STR(addr)); 4345 wpa_driver_nl80211_mlme(drv, addr, 4346 NL80211_CMD_DEAUTHENTICATE, 4347 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4348 } 4349} 4350 4351 4352static void wpa_driver_nl80211_check_bss_status( 4353 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4354{ 4355 size_t i; 4356 4357 for (i = 0; i < res->num; i++) { 4358 struct wpa_scan_res *r = res->res[i]; 4359 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4360 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4361 "indicates BSS status with " MACSTR 4362 " as authenticated", 4363 MAC2STR(r->bssid)); 4364 if (is_sta_interface(drv->nlmode) && 4365 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4366 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4367 0) { 4368 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4369 " in local state (auth=" MACSTR 4370 " assoc=" MACSTR ")", 4371 MAC2STR(drv->auth_bssid), 4372 MAC2STR(drv->bssid)); 4373 clear_state_mismatch(drv, r->bssid); 4374 } 4375 } 4376 4377 if (r->flags & WPA_SCAN_ASSOCIATED) { 4378 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4379 "indicate BSS status with " MACSTR 4380 " as associated", 4381 MAC2STR(r->bssid)); 4382 if (is_sta_interface(drv->nlmode) && 4383 !drv->associated) { 4384 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4385 "(not associated) does not match " 4386 "with BSS state"); 4387 clear_state_mismatch(drv, r->bssid); 4388 } else if (is_sta_interface(drv->nlmode) && 4389 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4390 0) { 4391 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4392 "(associated with " MACSTR ") does " 4393 "not match with BSS state", 4394 MAC2STR(drv->bssid)); 4395 clear_state_mismatch(drv, r->bssid); 4396 clear_state_mismatch(drv, drv->bssid); 4397 } 4398 } 4399 } 4400} 4401 4402 4403static struct wpa_scan_results * 4404nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4405{ 4406 struct nl_msg *msg; 4407 struct wpa_scan_results *res; 4408 int ret; 4409 struct nl80211_bss_info_arg arg; 4410 4411 res = os_zalloc(sizeof(*res)); 4412 if (res == NULL) 4413 return NULL; 4414 msg = nlmsg_alloc(); 4415 if (!msg) 4416 goto nla_put_failure; 4417 4418 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4419 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4420 4421 arg.drv = drv; 4422 arg.res = res; 4423 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4424 msg = NULL; 4425 if (ret == 0) { 4426 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4427 "BSSes)", (unsigned long) res->num); 4428 nl80211_get_noise_for_scan_results(drv, res); 4429 return res; 4430 } 4431 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4432 "(%s)", ret, strerror(-ret)); 4433nla_put_failure: 4434 nlmsg_free(msg); 4435 wpa_scan_results_free(res); 4436 return NULL; 4437} 4438 4439 4440/** 4441 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4442 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4443 * Returns: Scan results on success, -1 on failure 4444 */ 4445static struct wpa_scan_results * 4446wpa_driver_nl80211_get_scan_results(void *priv) 4447{ 4448 struct i802_bss *bss = priv; 4449 struct wpa_driver_nl80211_data *drv = bss->drv; 4450 struct wpa_scan_results *res; 4451 4452 res = nl80211_get_scan_results(drv); 4453 if (res) 4454 wpa_driver_nl80211_check_bss_status(drv, res); 4455 return res; 4456} 4457 4458 4459static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4460{ 4461 struct wpa_scan_results *res; 4462 size_t i; 4463 4464 res = nl80211_get_scan_results(drv); 4465 if (res == NULL) { 4466 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4467 return; 4468 } 4469 4470 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4471 for (i = 0; i < res->num; i++) { 4472 struct wpa_scan_res *r = res->res[i]; 4473 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4474 (int) i, (int) res->num, MAC2STR(r->bssid), 4475 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4476 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4477 } 4478 4479 wpa_scan_results_free(res); 4480} 4481 4482 4483static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4484 enum wpa_alg alg, const u8 *addr, 4485 int key_idx, int set_tx, 4486 const u8 *seq, size_t seq_len, 4487 const u8 *key, size_t key_len) 4488{ 4489 struct wpa_driver_nl80211_data *drv = bss->drv; 4490 int ifindex = if_nametoindex(ifname); 4491 struct nl_msg *msg; 4492 int ret; 4493 4494 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " 4495 "set_tx=%d seq_len=%lu key_len=%lu", 4496 __func__, ifindex, alg, addr, key_idx, set_tx, 4497 (unsigned long) seq_len, (unsigned long) key_len); 4498#ifdef CONFIG_TDLS 4499 if (key_idx == -1) 4500 key_idx = 0; 4501#endif /* CONFIG_TDLS */ 4502 4503 msg = nlmsg_alloc(); 4504 if (!msg) 4505 return -ENOMEM; 4506 4507 if (alg == WPA_ALG_NONE) { 4508 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4509 } else { 4510 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4511 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4512 switch (alg) { 4513 case WPA_ALG_WEP: 4514 if (key_len == 5) 4515 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4516 WLAN_CIPHER_SUITE_WEP40); 4517 else 4518 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4519 WLAN_CIPHER_SUITE_WEP104); 4520 break; 4521 case WPA_ALG_TKIP: 4522 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4523 WLAN_CIPHER_SUITE_TKIP); 4524 break; 4525 case WPA_ALG_CCMP: 4526 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4527 WLAN_CIPHER_SUITE_CCMP); 4528 break; 4529 case WPA_ALG_GCMP: 4530 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4531 WLAN_CIPHER_SUITE_GCMP); 4532 break; 4533 case WPA_ALG_IGTK: 4534 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4535 WLAN_CIPHER_SUITE_AES_CMAC); 4536 break; 4537 case WPA_ALG_SMS4: 4538 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4539 WLAN_CIPHER_SUITE_SMS4); 4540 break; 4541 case WPA_ALG_KRK: 4542 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4543 WLAN_CIPHER_SUITE_KRK); 4544 break; 4545 default: 4546 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4547 "algorithm %d", __func__, alg); 4548 nlmsg_free(msg); 4549 return -1; 4550 } 4551 } 4552 4553 if (seq && seq_len) 4554 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4555 4556 if (addr && !is_broadcast_ether_addr(addr)) { 4557 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4558 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4559 4560 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4561 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4562 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4563 NL80211_KEYTYPE_GROUP); 4564 } 4565 } else if (addr && is_broadcast_ether_addr(addr)) { 4566 struct nl_msg *types; 4567 int err; 4568 wpa_printf(MSG_DEBUG, " broadcast key"); 4569 types = nlmsg_alloc(); 4570 if (!types) 4571 goto nla_put_failure; 4572 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4573 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, 4574 types); 4575 nlmsg_free(types); 4576 if (err) 4577 goto nla_put_failure; 4578 } 4579 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4580 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4581 4582 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4583 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4584 ret = 0; 4585 if (ret) 4586 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4587 ret, strerror(-ret)); 4588 4589 /* 4590 * If we failed or don't need to set the default TX key (below), 4591 * we're done here. 4592 */ 4593 if (ret || !set_tx || alg == WPA_ALG_NONE) 4594 return ret; 4595 if (is_ap_interface(drv->nlmode) && addr && 4596 !is_broadcast_ether_addr(addr)) 4597 return ret; 4598 4599 msg = nlmsg_alloc(); 4600 if (!msg) 4601 return -ENOMEM; 4602 4603 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 4604 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4605 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4606 if (alg == WPA_ALG_IGTK) 4607 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 4608 else 4609 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 4610 if (addr && is_broadcast_ether_addr(addr)) { 4611 struct nl_msg *types; 4612 int err; 4613 types = nlmsg_alloc(); 4614 if (!types) 4615 goto nla_put_failure; 4616 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4617 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, 4618 types); 4619 nlmsg_free(types); 4620 if (err) 4621 goto nla_put_failure; 4622 } else if (addr) { 4623 struct nl_msg *types; 4624 int err; 4625 types = nlmsg_alloc(); 4626 if (!types) 4627 goto nla_put_failure; 4628 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST); 4629 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES, 4630 types); 4631 nlmsg_free(types); 4632 if (err) 4633 goto nla_put_failure; 4634 } 4635 4636 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4637 if (ret == -ENOENT) 4638 ret = 0; 4639 if (ret) 4640 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 4641 "err=%d %s)", ret, strerror(-ret)); 4642 return ret; 4643 4644nla_put_failure: 4645 nlmsg_free(msg); 4646 return -ENOBUFS; 4647} 4648 4649 4650static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 4651 int key_idx, int defkey, 4652 const u8 *seq, size_t seq_len, 4653 const u8 *key, size_t key_len) 4654{ 4655 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 4656 if (!key_attr) 4657 return -1; 4658 4659 if (defkey && alg == WPA_ALG_IGTK) 4660 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 4661 else if (defkey) 4662 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4663 4664 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 4665 4666 switch (alg) { 4667 case WPA_ALG_WEP: 4668 if (key_len == 5) 4669 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4670 WLAN_CIPHER_SUITE_WEP40); 4671 else 4672 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4673 WLAN_CIPHER_SUITE_WEP104); 4674 break; 4675 case WPA_ALG_TKIP: 4676 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 4677 break; 4678 case WPA_ALG_CCMP: 4679 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 4680 break; 4681 case WPA_ALG_GCMP: 4682 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 4683 break; 4684 case WPA_ALG_IGTK: 4685 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4686 WLAN_CIPHER_SUITE_AES_CMAC); 4687 break; 4688 default: 4689 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4690 "algorithm %d", __func__, alg); 4691 return -1; 4692 } 4693 4694 if (seq && seq_len) 4695 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 4696 4697 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 4698 4699 nla_nest_end(msg, key_attr); 4700 4701 return 0; 4702 nla_put_failure: 4703 return -1; 4704} 4705 4706 4707static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 4708 struct nl_msg *msg) 4709{ 4710 int i, privacy = 0; 4711 struct nlattr *nl_keys, *nl_key; 4712 4713 for (i = 0; i < 4; i++) { 4714 if (!params->wep_key[i]) 4715 continue; 4716 privacy = 1; 4717 break; 4718 } 4719 if (params->wps == WPS_MODE_PRIVACY) 4720 privacy = 1; 4721 if (params->pairwise_suite && 4722 params->pairwise_suite != WPA_CIPHER_NONE) 4723 privacy = 1; 4724 4725 if (!privacy) 4726 return 0; 4727 4728 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 4729 4730 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 4731 if (!nl_keys) 4732 goto nla_put_failure; 4733 4734 for (i = 0; i < 4; i++) { 4735 if (!params->wep_key[i]) 4736 continue; 4737 4738 nl_key = nla_nest_start(msg, i); 4739 if (!nl_key) 4740 goto nla_put_failure; 4741 4742 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 4743 params->wep_key[i]); 4744 if (params->wep_key_len[i] == 5) 4745 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4746 WLAN_CIPHER_SUITE_WEP40); 4747 else 4748 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4749 WLAN_CIPHER_SUITE_WEP104); 4750 4751 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 4752 4753 if (i == params->wep_tx_keyidx) 4754 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4755 4756 nla_nest_end(msg, nl_key); 4757 } 4758 nla_nest_end(msg, nl_keys); 4759 4760 return 0; 4761 4762nla_put_failure: 4763 return -ENOBUFS; 4764} 4765 4766 4767static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 4768 const u8 *addr, int cmd, u16 reason_code, 4769 int local_state_change) 4770{ 4771 int ret = -1; 4772 struct nl_msg *msg; 4773 4774 msg = nlmsg_alloc(); 4775 if (!msg) 4776 return -1; 4777 4778 nl80211_cmd(drv, msg, 0, cmd); 4779 4780 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4781 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 4782 if (addr) 4783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4784 if (local_state_change) 4785 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 4786 4787 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4788 msg = NULL; 4789 if (ret) { 4790 wpa_dbg(drv->ctx, MSG_DEBUG, 4791 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 4792 reason_code, ret, strerror(-ret)); 4793 goto nla_put_failure; 4794 } 4795 ret = 0; 4796 4797nla_put_failure: 4798 nlmsg_free(msg); 4799 return ret; 4800} 4801 4802 4803static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 4804 int reason_code) 4805{ 4806 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 4807 drv->associated = 0; 4808 drv->ignore_next_local_disconnect = 0; 4809 /* Disconnect command doesn't need BSSID - it uses cached value */ 4810 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 4811 reason_code, 0); 4812} 4813 4814 4815static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 4816 const u8 *addr, int reason_code) 4817{ 4818 struct wpa_driver_nl80211_data *drv = bss->drv; 4819 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 4820 return wpa_driver_nl80211_disconnect(drv, reason_code); 4821 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 4822 __func__, MAC2STR(addr), reason_code); 4823 drv->associated = 0; 4824 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 4825 return nl80211_leave_ibss(drv); 4826 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 4827 reason_code, 0); 4828} 4829 4830 4831static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 4832 struct wpa_driver_auth_params *params) 4833{ 4834 int i; 4835 4836 drv->auth_freq = params->freq; 4837 drv->auth_alg = params->auth_alg; 4838 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 4839 drv->auth_local_state_change = params->local_state_change; 4840 drv->auth_p2p = params->p2p; 4841 4842 if (params->bssid) 4843 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 4844 else 4845 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 4846 4847 if (params->ssid) { 4848 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 4849 drv->auth_ssid_len = params->ssid_len; 4850 } else 4851 drv->auth_ssid_len = 0; 4852 4853 4854 os_free(drv->auth_ie); 4855 drv->auth_ie = NULL; 4856 drv->auth_ie_len = 0; 4857 if (params->ie) { 4858 drv->auth_ie = os_malloc(params->ie_len); 4859 if (drv->auth_ie) { 4860 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 4861 drv->auth_ie_len = params->ie_len; 4862 } 4863 } 4864 4865 for (i = 0; i < 4; i++) { 4866 if (params->wep_key[i] && params->wep_key_len[i] && 4867 params->wep_key_len[i] <= 16) { 4868 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 4869 params->wep_key_len[i]); 4870 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 4871 } else 4872 drv->auth_wep_key_len[i] = 0; 4873 } 4874} 4875 4876 4877static int wpa_driver_nl80211_authenticate( 4878 struct i802_bss *bss, struct wpa_driver_auth_params *params) 4879{ 4880 struct wpa_driver_nl80211_data *drv = bss->drv; 4881 int ret = -1, i; 4882 struct nl_msg *msg; 4883 enum nl80211_auth_type type; 4884 enum nl80211_iftype nlmode; 4885 int count = 0; 4886 int is_retry; 4887 4888 is_retry = drv->retry_auth; 4889 drv->retry_auth = 0; 4890 4891 drv->associated = 0; 4892 os_memset(drv->auth_bssid, 0, ETH_ALEN); 4893 /* FIX: IBSS mode */ 4894 nlmode = params->p2p ? 4895 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 4896 if (drv->nlmode != nlmode && 4897 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 4898 return -1; 4899 4900retry: 4901 msg = nlmsg_alloc(); 4902 if (!msg) 4903 return -1; 4904 4905 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 4906 drv->ifindex); 4907 4908 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 4909 4910 for (i = 0; i < 4; i++) { 4911 if (!params->wep_key[i]) 4912 continue; 4913 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 4914 NULL, i, 4915 i == params->wep_tx_keyidx, NULL, 0, 4916 params->wep_key[i], 4917 params->wep_key_len[i]); 4918 if (params->wep_tx_keyidx != i) 4919 continue; 4920 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 4921 params->wep_key[i], params->wep_key_len[i])) { 4922 nlmsg_free(msg); 4923 return -1; 4924 } 4925 } 4926 4927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4928 if (params->bssid) { 4929 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 4930 MAC2STR(params->bssid)); 4931 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 4932 } 4933 if (params->freq) { 4934 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 4935 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 4936 } 4937 if (params->ssid) { 4938 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4939 params->ssid, params->ssid_len); 4940 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 4941 params->ssid); 4942 } 4943 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 4944 if (params->ie) 4945 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 4946 if (params->sae_data) { 4947 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 4948 params->sae_data_len); 4949 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 4950 params->sae_data); 4951 } 4952 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 4953 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 4954 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 4955 type = NL80211_AUTHTYPE_SHARED_KEY; 4956 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 4957 type = NL80211_AUTHTYPE_NETWORK_EAP; 4958 else if (params->auth_alg & WPA_AUTH_ALG_FT) 4959 type = NL80211_AUTHTYPE_FT; 4960 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 4961 type = NL80211_AUTHTYPE_SAE; 4962 else 4963 goto nla_put_failure; 4964 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 4965 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 4966 if (params->local_state_change) { 4967 wpa_printf(MSG_DEBUG, " * Local state change only"); 4968 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 4969 } 4970 4971 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4972 msg = NULL; 4973 if (ret) { 4974 wpa_dbg(drv->ctx, MSG_DEBUG, 4975 "nl80211: MLME command failed (auth): ret=%d (%s)", 4976 ret, strerror(-ret)); 4977 count++; 4978 if (ret == -EALREADY && count == 1 && params->bssid && 4979 !params->local_state_change) { 4980 /* 4981 * mac80211 does not currently accept new 4982 * authentication if we are already authenticated. As a 4983 * workaround, force deauthentication and try again. 4984 */ 4985 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 4986 "after forced deauthentication"); 4987 wpa_driver_nl80211_deauthenticate( 4988 bss, params->bssid, 4989 WLAN_REASON_PREV_AUTH_NOT_VALID); 4990 nlmsg_free(msg); 4991 goto retry; 4992 } 4993 4994 if (ret == -ENOENT && params->freq && !is_retry) { 4995 /* 4996 * cfg80211 has likely expired the BSS entry even 4997 * though it was previously available in our internal 4998 * BSS table. To recover quickly, start a single 4999 * channel scan on the specified channel. 5000 */ 5001 struct wpa_driver_scan_params scan; 5002 int freqs[2]; 5003 5004 os_memset(&scan, 0, sizeof(scan)); 5005 scan.num_ssids = 1; 5006 if (params->ssid) { 5007 scan.ssids[0].ssid = params->ssid; 5008 scan.ssids[0].ssid_len = params->ssid_len; 5009 } 5010 freqs[0] = params->freq; 5011 freqs[1] = 0; 5012 scan.freqs = freqs; 5013 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5014 "channel scan to refresh cfg80211 BSS " 5015 "entry"); 5016 ret = wpa_driver_nl80211_scan(bss, &scan); 5017 if (ret == 0) { 5018 nl80211_copy_auth_params(drv, params); 5019 drv->scan_for_auth = 1; 5020 } 5021 } else if (is_retry) { 5022 /* 5023 * Need to indicate this with an event since the return 5024 * value from the retry is not delivered to core code. 5025 */ 5026 union wpa_event_data event; 5027 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5028 "failed"); 5029 os_memset(&event, 0, sizeof(event)); 5030 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5031 ETH_ALEN); 5032 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5033 &event); 5034 } 5035 5036 goto nla_put_failure; 5037 } 5038 ret = 0; 5039 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5040 "successfully"); 5041 5042nla_put_failure: 5043 nlmsg_free(msg); 5044 return ret; 5045} 5046 5047 5048static int wpa_driver_nl80211_authenticate_retry( 5049 struct wpa_driver_nl80211_data *drv) 5050{ 5051 struct wpa_driver_auth_params params; 5052 struct i802_bss *bss = &drv->first_bss; 5053 int i; 5054 5055 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5056 5057 os_memset(¶ms, 0, sizeof(params)); 5058 params.freq = drv->auth_freq; 5059 params.auth_alg = drv->auth_alg; 5060 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5061 params.local_state_change = drv->auth_local_state_change; 5062 params.p2p = drv->auth_p2p; 5063 5064 if (!is_zero_ether_addr(drv->auth_bssid_)) 5065 params.bssid = drv->auth_bssid_; 5066 5067 if (drv->auth_ssid_len) { 5068 params.ssid = drv->auth_ssid; 5069 params.ssid_len = drv->auth_ssid_len; 5070 } 5071 5072 params.ie = drv->auth_ie; 5073 params.ie_len = drv->auth_ie_len; 5074 5075 for (i = 0; i < 4; i++) { 5076 if (drv->auth_wep_key_len[i]) { 5077 params.wep_key[i] = drv->auth_wep_key[i]; 5078 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5079 } 5080 } 5081 5082 drv->retry_auth = 1; 5083 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5084} 5085 5086 5087struct phy_info_arg { 5088 u16 *num_modes; 5089 struct hostapd_hw_modes *modes; 5090 int last_mode, last_chan_idx; 5091}; 5092 5093static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5094 struct nlattr *ampdu_factor, 5095 struct nlattr *ampdu_density, 5096 struct nlattr *mcs_set) 5097{ 5098 if (capa) 5099 mode->ht_capab = nla_get_u16(capa); 5100 5101 if (ampdu_factor) 5102 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5103 5104 if (ampdu_density) 5105 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5106 5107 if (mcs_set && nla_len(mcs_set) >= 16) { 5108 u8 *mcs; 5109 mcs = nla_data(mcs_set); 5110 os_memcpy(mode->mcs_set, mcs, 16); 5111 } 5112} 5113 5114 5115static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5116 struct nlattr *capa, 5117 struct nlattr *mcs_set) 5118{ 5119 if (capa) 5120 mode->vht_capab = nla_get_u32(capa); 5121 5122 if (mcs_set && nla_len(mcs_set) >= 8) { 5123 u8 *mcs; 5124 mcs = nla_data(mcs_set); 5125 os_memcpy(mode->vht_mcs_set, mcs, 8); 5126 } 5127} 5128 5129 5130static void phy_info_freq(struct hostapd_hw_modes *mode, 5131 struct hostapd_channel_data *chan, 5132 struct nlattr *tb_freq[]) 5133{ 5134 enum hostapd_hw_mode m; 5135 5136 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5137 chan->flag = 0; 5138 5139 if (chan->freq < 4000) 5140 m = HOSTAPD_MODE_IEEE80211B; 5141 else if (chan->freq > 50000) 5142 m = HOSTAPD_MODE_IEEE80211AD; 5143 else 5144 m = HOSTAPD_MODE_IEEE80211A; 5145 5146 switch (m) { 5147 case HOSTAPD_MODE_IEEE80211AD: 5148 chan->chan = (chan->freq - 56160) / 2160; 5149 break; 5150 case HOSTAPD_MODE_IEEE80211A: 5151 chan->chan = chan->freq / 5 - 1000; 5152 break; 5153 case HOSTAPD_MODE_IEEE80211B: 5154 case HOSTAPD_MODE_IEEE80211G: 5155 if (chan->freq == 2484) 5156 chan->chan = 14; 5157 else 5158 chan->chan = (chan->freq - 2407) / 5; 5159 break; 5160 default: 5161 break; 5162 } 5163 5164 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5165 chan->flag |= HOSTAPD_CHAN_DISABLED; 5166 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5167 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5168 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5169 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5170 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5171 chan->flag |= HOSTAPD_CHAN_RADAR; 5172 5173 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5174 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5175 chan->max_tx_power = nla_get_u32( 5176 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5177} 5178 5179 5180static int phy_info_freqs(struct phy_info_arg *phy_info, 5181 struct hostapd_hw_modes *mode, struct nlattr *tb) 5182{ 5183 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5184 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5185 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5186 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5187 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5188 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5189 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5190 }; 5191 int new_channels = 0; 5192 struct hostapd_channel_data *channel; 5193 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5194 struct nlattr *nl_freq; 5195 int rem_freq, idx; 5196 5197 if (tb == NULL) 5198 return NL_OK; 5199 5200 nla_for_each_nested(nl_freq, tb, rem_freq) { 5201 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5202 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5203 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5204 continue; 5205 new_channels++; 5206 } 5207 5208 channel = os_realloc_array(mode->channels, 5209 mode->num_channels + new_channels, 5210 sizeof(struct hostapd_channel_data)); 5211 if (!channel) 5212 return NL_SKIP; 5213 5214 mode->channels = channel; 5215 mode->num_channels += new_channels; 5216 5217 idx = phy_info->last_chan_idx; 5218 5219 nla_for_each_nested(nl_freq, tb, rem_freq) { 5220 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5221 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5222 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5223 continue; 5224 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5225 idx++; 5226 } 5227 phy_info->last_chan_idx = idx; 5228 5229 return NL_OK; 5230} 5231 5232 5233static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5234{ 5235 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5236 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5237 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5238 { .type = NLA_FLAG }, 5239 }; 5240 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5241 struct nlattr *nl_rate; 5242 int rem_rate, idx; 5243 5244 if (tb == NULL) 5245 return NL_OK; 5246 5247 nla_for_each_nested(nl_rate, tb, rem_rate) { 5248 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5249 nla_data(nl_rate), nla_len(nl_rate), 5250 rate_policy); 5251 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5252 continue; 5253 mode->num_rates++; 5254 } 5255 5256 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5257 if (!mode->rates) 5258 return NL_SKIP; 5259 5260 idx = 0; 5261 5262 nla_for_each_nested(nl_rate, tb, rem_rate) { 5263 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5264 nla_data(nl_rate), nla_len(nl_rate), 5265 rate_policy); 5266 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5267 continue; 5268 mode->rates[idx] = nla_get_u32( 5269 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5270 idx++; 5271 } 5272 5273 return NL_OK; 5274} 5275 5276 5277static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5278{ 5279 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5280 struct hostapd_hw_modes *mode; 5281 int ret; 5282 5283 if (phy_info->last_mode != nl_band->nla_type) { 5284 mode = os_realloc_array(phy_info->modes, 5285 *phy_info->num_modes + 1, 5286 sizeof(*mode)); 5287 if (!mode) 5288 return NL_SKIP; 5289 phy_info->modes = mode; 5290 5291 mode = &phy_info->modes[*(phy_info->num_modes)]; 5292 os_memset(mode, 0, sizeof(*mode)); 5293 mode->mode = NUM_HOSTAPD_MODES; 5294 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; 5295 *(phy_info->num_modes) += 1; 5296 phy_info->last_mode = nl_band->nla_type; 5297 phy_info->last_chan_idx = 0; 5298 } else 5299 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5300 5301 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5302 nla_len(nl_band), NULL); 5303 5304 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5305 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5306 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5307 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5308 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5309 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5310 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5311 if (ret != NL_OK) 5312 return ret; 5313 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5314 if (ret != NL_OK) 5315 return ret; 5316 5317 return NL_OK; 5318} 5319 5320 5321static int phy_info_handler(struct nl_msg *msg, void *arg) 5322{ 5323 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5324 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5325 struct phy_info_arg *phy_info = arg; 5326 struct nlattr *nl_band; 5327 int rem_band; 5328 5329 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5330 genlmsg_attrlen(gnlh, 0), NULL); 5331 5332 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5333 return NL_SKIP; 5334 5335 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5336 { 5337 int res = phy_info_band(phy_info, nl_band); 5338 if (res != NL_OK) 5339 return res; 5340 } 5341 5342 return NL_SKIP; 5343} 5344 5345 5346static struct hostapd_hw_modes * 5347wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5348 u16 *num_modes) 5349{ 5350 u16 m; 5351 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5352 int i, mode11g_idx = -1; 5353 5354 /* heuristic to set up modes */ 5355 for (m = 0; m < *num_modes; m++) { 5356 if (!modes[m].num_channels) 5357 continue; 5358 if (modes[m].channels[0].freq < 4000) { 5359 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5360 for (i = 0; i < modes[m].num_rates; i++) { 5361 if (modes[m].rates[i] > 200) { 5362 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5363 break; 5364 } 5365 } 5366 } else if (modes[m].channels[0].freq > 50000) 5367 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5368 else 5369 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5370 } 5371 5372 /* If only 802.11g mode is included, use it to construct matching 5373 * 802.11b mode data. */ 5374 5375 for (m = 0; m < *num_modes; m++) { 5376 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5377 return modes; /* 802.11b already included */ 5378 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5379 mode11g_idx = m; 5380 } 5381 5382 if (mode11g_idx < 0) 5383 return modes; /* 2.4 GHz band not supported at all */ 5384 5385 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5386 if (nmodes == NULL) 5387 return modes; /* Could not add 802.11b mode */ 5388 5389 mode = &nmodes[*num_modes]; 5390 os_memset(mode, 0, sizeof(*mode)); 5391 (*num_modes)++; 5392 modes = nmodes; 5393 5394 mode->mode = HOSTAPD_MODE_IEEE80211B; 5395 5396 mode11g = &modes[mode11g_idx]; 5397 mode->num_channels = mode11g->num_channels; 5398 mode->channels = os_malloc(mode11g->num_channels * 5399 sizeof(struct hostapd_channel_data)); 5400 if (mode->channels == NULL) { 5401 (*num_modes)--; 5402 return modes; /* Could not add 802.11b mode */ 5403 } 5404 os_memcpy(mode->channels, mode11g->channels, 5405 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5406 5407 mode->num_rates = 0; 5408 mode->rates = os_malloc(4 * sizeof(int)); 5409 if (mode->rates == NULL) { 5410 os_free(mode->channels); 5411 (*num_modes)--; 5412 return modes; /* Could not add 802.11b mode */ 5413 } 5414 5415 for (i = 0; i < mode11g->num_rates; i++) { 5416 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5417 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5418 continue; 5419 mode->rates[mode->num_rates] = mode11g->rates[i]; 5420 mode->num_rates++; 5421 if (mode->num_rates == 4) 5422 break; 5423 } 5424 5425 if (mode->num_rates == 0) { 5426 os_free(mode->channels); 5427 os_free(mode->rates); 5428 (*num_modes)--; 5429 return modes; /* No 802.11b rates */ 5430 } 5431 5432 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5433 "information"); 5434 5435 return modes; 5436} 5437 5438 5439static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5440 int end) 5441{ 5442 int c; 5443 5444 for (c = 0; c < mode->num_channels; c++) { 5445 struct hostapd_channel_data *chan = &mode->channels[c]; 5446 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5447 chan->flag |= HOSTAPD_CHAN_HT40; 5448 } 5449} 5450 5451 5452static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5453 int end) 5454{ 5455 int c; 5456 5457 for (c = 0; c < mode->num_channels; c++) { 5458 struct hostapd_channel_data *chan = &mode->channels[c]; 5459 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5460 continue; 5461 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5462 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5463 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5464 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5465 } 5466} 5467 5468 5469static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5470 struct phy_info_arg *results) 5471{ 5472 u32 start, end, max_bw; 5473 u16 m; 5474 5475 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5476 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5477 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5478 return; 5479 5480 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5481 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5482 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5483 5484 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5485 start, end, max_bw); 5486 if (max_bw < 40) 5487 return; 5488 5489 for (m = 0; m < *results->num_modes; m++) { 5490 if (!(results->modes[m].ht_capab & 5491 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5492 continue; 5493 nl80211_set_ht40_mode(&results->modes[m], start, end); 5494 } 5495} 5496 5497 5498static void nl80211_reg_rule_sec(struct nlattr *tb[], 5499 struct phy_info_arg *results) 5500{ 5501 u32 start, end, max_bw; 5502 u16 m; 5503 5504 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5505 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5506 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5507 return; 5508 5509 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5510 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5511 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5512 5513 if (max_bw < 20) 5514 return; 5515 5516 for (m = 0; m < *results->num_modes; m++) { 5517 if (!(results->modes[m].ht_capab & 5518 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5519 continue; 5520 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5521 } 5522} 5523 5524 5525static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5526{ 5527 struct phy_info_arg *results = arg; 5528 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5529 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5530 struct nlattr *nl_rule; 5531 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5532 int rem_rule; 5533 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5534 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5535 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5536 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5537 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5538 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5539 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5540 }; 5541 5542 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5543 genlmsg_attrlen(gnlh, 0), NULL); 5544 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5545 !tb_msg[NL80211_ATTR_REG_RULES]) { 5546 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5547 "available"); 5548 return NL_SKIP; 5549 } 5550 5551 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5552 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5553 5554 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5555 { 5556 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5557 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5558 nl80211_reg_rule_ht40(tb_rule, results); 5559 } 5560 5561 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5562 { 5563 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5564 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5565 nl80211_reg_rule_sec(tb_rule, results); 5566 } 5567 5568 return NL_SKIP; 5569} 5570 5571 5572static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5573 struct phy_info_arg *results) 5574{ 5575 struct nl_msg *msg; 5576 5577 msg = nlmsg_alloc(); 5578 if (!msg) 5579 return -ENOMEM; 5580 5581 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 5582 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 5583} 5584 5585 5586static struct hostapd_hw_modes * 5587wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 5588{ 5589 u32 feat; 5590 struct i802_bss *bss = priv; 5591 struct wpa_driver_nl80211_data *drv = bss->drv; 5592 struct nl_msg *msg; 5593 struct phy_info_arg result = { 5594 .num_modes = num_modes, 5595 .modes = NULL, 5596 .last_mode = -1, 5597 }; 5598 5599 *num_modes = 0; 5600 *flags = 0; 5601 5602 msg = nlmsg_alloc(); 5603 if (!msg) 5604 return NULL; 5605 5606 feat = get_nl80211_protocol_features(drv); 5607 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 5608 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 5609 else 5610 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 5611 5612 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 5613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5614 5615 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 5616 nl80211_set_ht40_flags(drv, &result); 5617 return wpa_driver_nl80211_postprocess_modes(result.modes, 5618 num_modes); 5619 } 5620 msg = NULL; 5621 nla_put_failure: 5622 nlmsg_free(msg); 5623 return NULL; 5624} 5625 5626 5627static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 5628 const void *data, size_t len, 5629 int encrypt, int noack) 5630{ 5631 __u8 rtap_hdr[] = { 5632 0x00, 0x00, /* radiotap version */ 5633 0x0e, 0x00, /* radiotap length */ 5634 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 5635 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 5636 0x00, /* padding */ 5637 0x00, 0x00, /* RX and TX flags to indicate that */ 5638 0x00, 0x00, /* this is the injected frame directly */ 5639 }; 5640 struct iovec iov[2] = { 5641 { 5642 .iov_base = &rtap_hdr, 5643 .iov_len = sizeof(rtap_hdr), 5644 }, 5645 { 5646 .iov_base = (void *) data, 5647 .iov_len = len, 5648 } 5649 }; 5650 struct msghdr msg = { 5651 .msg_name = NULL, 5652 .msg_namelen = 0, 5653 .msg_iov = iov, 5654 .msg_iovlen = 2, 5655 .msg_control = NULL, 5656 .msg_controllen = 0, 5657 .msg_flags = 0, 5658 }; 5659 int res; 5660 u16 txflags = 0; 5661 5662 if (encrypt) 5663 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 5664 5665 if (drv->monitor_sock < 0) { 5666 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 5667 "for %s", __func__); 5668 return -1; 5669 } 5670 5671 if (noack) 5672 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 5673 WPA_PUT_LE16(&rtap_hdr[12], txflags); 5674 5675 res = sendmsg(drv->monitor_sock, &msg, 0); 5676 if (res < 0) { 5677 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 5678 return -1; 5679 } 5680 return 0; 5681} 5682 5683 5684static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 5685 const void *data, size_t len, 5686 int encrypt, int noack, 5687 unsigned int freq, int no_cck, 5688 int offchanok, unsigned int wait_time) 5689{ 5690 struct wpa_driver_nl80211_data *drv = bss->drv; 5691 u64 cookie; 5692 5693 if (freq == 0) 5694 freq = bss->freq; 5695 5696 if (drv->use_monitor) 5697 return wpa_driver_nl80211_send_mntr(drv, data, len, 5698 encrypt, noack); 5699 5700 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 5701 &cookie, no_cck, noack, offchanok); 5702} 5703 5704 5705static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 5706 size_t data_len, int noack, 5707 unsigned int freq, int no_cck, 5708 int offchanok, 5709 unsigned int wait_time) 5710{ 5711 struct wpa_driver_nl80211_data *drv = bss->drv; 5712 struct ieee80211_mgmt *mgmt; 5713 int encrypt = 1; 5714 u16 fc; 5715 5716 mgmt = (struct ieee80211_mgmt *) data; 5717 fc = le_to_host16(mgmt->frame_control); 5718 5719 if (is_sta_interface(drv->nlmode) && 5720 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5721 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 5722 /* 5723 * The use of last_mgmt_freq is a bit of a hack, 5724 * but it works due to the single-threaded nature 5725 * of wpa_supplicant. 5726 */ 5727 if (freq == 0) 5728 freq = drv->last_mgmt_freq; 5729 return nl80211_send_frame_cmd(bss, freq, 0, 5730 data, data_len, NULL, 1, noack, 5731 1); 5732 } 5733 5734 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 5735 if (freq == 0) 5736 freq = bss->freq; 5737 return nl80211_send_frame_cmd(bss, freq, 5738 (int) freq == bss->freq ? 0 : 5739 wait_time, 5740 data, data_len, 5741 &drv->send_action_cookie, 5742 no_cck, noack, offchanok); 5743 } 5744 5745 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5746 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 5747 /* 5748 * Only one of the authentication frame types is encrypted. 5749 * In order for static WEP encryption to work properly (i.e., 5750 * to not encrypt the frame), we need to tell mac80211 about 5751 * the frames that must not be encrypted. 5752 */ 5753 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 5754 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 5755 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 5756 encrypt = 0; 5757 } 5758 5759 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 5760 noack, freq, no_cck, offchanok, 5761 wait_time); 5762} 5763 5764 5765static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 5766 int slot, int ht_opmode, int ap_isolate, 5767 int *basic_rates) 5768{ 5769 struct wpa_driver_nl80211_data *drv = bss->drv; 5770 struct nl_msg *msg; 5771 5772 msg = nlmsg_alloc(); 5773 if (!msg) 5774 return -ENOMEM; 5775 5776 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 5777 5778 if (cts >= 0) 5779 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 5780 if (preamble >= 0) 5781 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 5782 if (slot >= 0) 5783 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 5784 if (ht_opmode >= 0) 5785 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 5786 if (ap_isolate >= 0) 5787 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 5788 5789 if (basic_rates) { 5790 u8 rates[NL80211_MAX_SUPP_RATES]; 5791 u8 rates_len = 0; 5792 int i; 5793 5794 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 5795 i++) 5796 rates[rates_len++] = basic_rates[i] / 5; 5797 5798 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 5799 } 5800 5801 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 5802 5803 return send_and_recv_msgs(drv, msg, NULL, NULL); 5804 nla_put_failure: 5805 nlmsg_free(msg); 5806 return -ENOBUFS; 5807} 5808 5809 5810static int wpa_driver_nl80211_set_ap(void *priv, 5811 struct wpa_driver_ap_params *params) 5812{ 5813 struct i802_bss *bss = priv; 5814 struct wpa_driver_nl80211_data *drv = bss->drv; 5815 struct nl_msg *msg; 5816 u8 cmd = NL80211_CMD_NEW_BEACON; 5817 int ret; 5818 int beacon_set; 5819 int ifindex = if_nametoindex(bss->ifname); 5820 int num_suites; 5821 u32 suites[10]; 5822 u32 ver; 5823 5824 beacon_set = bss->beacon_set; 5825 5826 msg = nlmsg_alloc(); 5827 if (!msg) 5828 return -ENOMEM; 5829 5830 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 5831 beacon_set); 5832 if (beacon_set) 5833 cmd = NL80211_CMD_SET_BEACON; 5834 5835 nl80211_cmd(drv, msg, 0, cmd); 5836 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 5837 params->head, params->head_len); 5838 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 5839 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 5840 params->tail, params->tail_len); 5841 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 5842 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 5843 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5844 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 5845 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 5846 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 5847 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 5848 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 5849 params->ssid, params->ssid_len); 5850 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5851 params->ssid); 5852 if (params->proberesp && params->proberesp_len) { 5853 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 5854 params->proberesp, params->proberesp_len); 5855 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 5856 params->proberesp); 5857 } 5858 switch (params->hide_ssid) { 5859 case NO_SSID_HIDING: 5860 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 5861 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5862 NL80211_HIDDEN_SSID_NOT_IN_USE); 5863 break; 5864 case HIDDEN_SSID_ZERO_LEN: 5865 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 5866 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5867 NL80211_HIDDEN_SSID_ZERO_LEN); 5868 break; 5869 case HIDDEN_SSID_ZERO_CONTENTS: 5870 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 5871 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5872 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 5873 break; 5874 } 5875 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 5876 if (params->privacy) 5877 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 5878 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 5879 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 5880 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 5881 /* Leave out the attribute */ 5882 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 5883 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 5884 NL80211_AUTHTYPE_SHARED_KEY); 5885 else 5886 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 5887 NL80211_AUTHTYPE_OPEN_SYSTEM); 5888 5889 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 5890 ver = 0; 5891 if (params->wpa_version & WPA_PROTO_WPA) 5892 ver |= NL80211_WPA_VERSION_1; 5893 if (params->wpa_version & WPA_PROTO_RSN) 5894 ver |= NL80211_WPA_VERSION_2; 5895 if (ver) 5896 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 5897 5898 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 5899 params->key_mgmt_suites); 5900 num_suites = 0; 5901 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 5902 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 5903 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 5904 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 5905 if (num_suites) { 5906 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 5907 num_suites * sizeof(u32), suites); 5908 } 5909 5910 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 5911 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 5912 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 5913 5914 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 5915 params->pairwise_ciphers); 5916 num_suites = 0; 5917 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 5918 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 5919 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 5920 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 5921 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 5922 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 5923 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 5924 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 5925 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 5926 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 5927 if (num_suites) { 5928 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 5929 num_suites * sizeof(u32), suites); 5930 } 5931 5932 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 5933 params->group_cipher); 5934 switch (params->group_cipher) { 5935 case WPA_CIPHER_CCMP: 5936 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5937 WLAN_CIPHER_SUITE_CCMP); 5938 break; 5939 case WPA_CIPHER_GCMP: 5940 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5941 WLAN_CIPHER_SUITE_GCMP); 5942 break; 5943 case WPA_CIPHER_TKIP: 5944 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5945 WLAN_CIPHER_SUITE_TKIP); 5946 break; 5947 case WPA_CIPHER_WEP104: 5948 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5949 WLAN_CIPHER_SUITE_WEP104); 5950 break; 5951 case WPA_CIPHER_WEP40: 5952 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 5953 WLAN_CIPHER_SUITE_WEP40); 5954 break; 5955 } 5956 5957 if (params->beacon_ies) { 5958 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 5959 params->beacon_ies); 5960 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 5961 wpabuf_head(params->beacon_ies)); 5962 } 5963 if (params->proberesp_ies) { 5964 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 5965 params->proberesp_ies); 5966 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 5967 wpabuf_len(params->proberesp_ies), 5968 wpabuf_head(params->proberesp_ies)); 5969 } 5970 if (params->assocresp_ies) { 5971 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 5972 params->assocresp_ies); 5973 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 5974 wpabuf_len(params->assocresp_ies), 5975 wpabuf_head(params->assocresp_ies)); 5976 } 5977 5978 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 5979 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 5980 params->ap_max_inactivity); 5981 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 5982 params->ap_max_inactivity); 5983 } 5984 5985 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5986 if (ret) { 5987 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 5988 ret, strerror(-ret)); 5989 } else { 5990 bss->beacon_set = 1; 5991 nl80211_set_bss(bss, params->cts_protect, params->preamble, 5992 params->short_slot_time, params->ht_opmode, 5993 params->isolate, params->basic_rates); 5994 } 5995 return ret; 5996 nla_put_failure: 5997 nlmsg_free(msg); 5998 return -ENOBUFS; 5999} 6000 6001 6002static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6003 struct hostapd_freq_params *freq) 6004{ 6005 struct wpa_driver_nl80211_data *drv = bss->drv; 6006 struct nl_msg *msg; 6007 int ret; 6008 6009 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6010 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6011 freq->freq, freq->ht_enabled, freq->vht_enabled, 6012 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6013 msg = nlmsg_alloc(); 6014 if (!msg) 6015 return -1; 6016 6017 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6018 6019 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6020 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6021 if (freq->vht_enabled) { 6022 switch (freq->bandwidth) { 6023 case 20: 6024 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6025 NL80211_CHAN_WIDTH_20); 6026 break; 6027 case 40: 6028 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6029 NL80211_CHAN_WIDTH_40); 6030 break; 6031 case 80: 6032 if (freq->center_freq2) 6033 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6034 NL80211_CHAN_WIDTH_80P80); 6035 else 6036 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6037 NL80211_CHAN_WIDTH_80); 6038 break; 6039 case 160: 6040 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6041 NL80211_CHAN_WIDTH_160); 6042 break; 6043 default: 6044 return -1; 6045 } 6046 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6047 if (freq->center_freq2) 6048 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6049 freq->center_freq2); 6050 } else if (freq->ht_enabled) { 6051 switch (freq->sec_channel_offset) { 6052 case -1: 6053 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6054 NL80211_CHAN_HT40MINUS); 6055 break; 6056 case 1: 6057 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6058 NL80211_CHAN_HT40PLUS); 6059 break; 6060 default: 6061 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6062 NL80211_CHAN_HT20); 6063 break; 6064 } 6065 } 6066 6067 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6068 msg = NULL; 6069 if (ret == 0) { 6070 bss->freq = freq->freq; 6071 return 0; 6072 } 6073 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6074 "%d (%s)", freq->freq, ret, strerror(-ret)); 6075nla_put_failure: 6076 nlmsg_free(msg); 6077 return -1; 6078} 6079 6080 6081static u32 sta_flags_nl80211(int flags) 6082{ 6083 u32 f = 0; 6084 6085 if (flags & WPA_STA_AUTHORIZED) 6086 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6087 if (flags & WPA_STA_WMM) 6088 f |= BIT(NL80211_STA_FLAG_WME); 6089 if (flags & WPA_STA_SHORT_PREAMBLE) 6090 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6091 if (flags & WPA_STA_MFP) 6092 f |= BIT(NL80211_STA_FLAG_MFP); 6093 if (flags & WPA_STA_TDLS_PEER) 6094 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6095 6096 return f; 6097} 6098 6099 6100static int wpa_driver_nl80211_sta_add(void *priv, 6101 struct hostapd_sta_add_params *params) 6102{ 6103 struct i802_bss *bss = priv; 6104 struct wpa_driver_nl80211_data *drv = bss->drv; 6105 struct nl_msg *msg, *wme = NULL; 6106 struct nl80211_sta_flag_update upd; 6107 int ret = -ENOBUFS; 6108 6109 if ((params->flags & WPA_STA_TDLS_PEER) && 6110 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6111 return -EOPNOTSUPP; 6112 6113 msg = nlmsg_alloc(); 6114 if (!msg) 6115 return -ENOMEM; 6116 6117 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6118 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6119 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6120 NL80211_CMD_NEW_STATION); 6121 6122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6123 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6124 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6125 params->supp_rates); 6126 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6127 params->supp_rates_len); 6128 if (!params->set) { 6129 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6130 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6131 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6132 params->listen_interval); 6133 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6134 params->listen_interval); 6135 } 6136 if (params->ht_capabilities) { 6137 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6138 (u8 *) params->ht_capabilities, 6139 sizeof(*params->ht_capabilities)); 6140 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6141 sizeof(*params->ht_capabilities), 6142 params->ht_capabilities); 6143 } 6144 6145 if (params->vht_capabilities) { 6146 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6147 (u8 *) params->vht_capabilities, 6148 sizeof(*params->vht_capabilities)); 6149 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6150 sizeof(*params->vht_capabilities), 6151 params->vht_capabilities); 6152 } 6153 6154 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6155 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6156 6157 if (params->ext_capab) { 6158 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6159 params->ext_capab, params->ext_capab_len); 6160 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6161 params->ext_capab_len, params->ext_capab); 6162 } 6163 6164 os_memset(&upd, 0, sizeof(upd)); 6165 upd.mask = sta_flags_nl80211(params->flags); 6166 upd.set = upd.mask; 6167 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6168 upd.set, upd.mask); 6169 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6170 6171 if (params->flags & WPA_STA_WMM) { 6172 wme = nlmsg_alloc(); 6173 if (!wme) 6174 goto nla_put_failure; 6175 6176 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6177 NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES, 6178 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6179 NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP, 6180 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6181 WMM_QOSINFO_STA_SP_MASK); 6182 if (nla_put_nested(msg, NL80211_ATTR_STA_WME, wme) < 0) 6183 goto nla_put_failure; 6184 } 6185 6186 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6187 msg = NULL; 6188 if (ret) 6189 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6190 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6191 strerror(-ret)); 6192 if (ret == -EEXIST) 6193 ret = 0; 6194 nla_put_failure: 6195 nlmsg_free(wme); 6196 nlmsg_free(msg); 6197 return ret; 6198} 6199 6200 6201static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6202{ 6203 struct wpa_driver_nl80211_data *drv = bss->drv; 6204 struct nl_msg *msg; 6205 int ret; 6206 6207 msg = nlmsg_alloc(); 6208 if (!msg) 6209 return -ENOMEM; 6210 6211 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6212 6213 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6214 if_nametoindex(bss->ifname)); 6215 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6216 6217 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6218 if (ret == -ENOENT) 6219 return 0; 6220 return ret; 6221 nla_put_failure: 6222 nlmsg_free(msg); 6223 return -ENOBUFS; 6224} 6225 6226 6227static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6228 int ifidx) 6229{ 6230 struct nl_msg *msg; 6231 6232 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6233 6234 /* stop listening for EAPOL on this interface */ 6235 del_ifidx(drv, ifidx); 6236 6237 msg = nlmsg_alloc(); 6238 if (!msg) 6239 goto nla_put_failure; 6240 6241 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6243 6244 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6245 return; 6246 msg = NULL; 6247 nla_put_failure: 6248 nlmsg_free(msg); 6249 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6250} 6251 6252 6253static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6254{ 6255 switch (mode) { 6256 case NL80211_IFTYPE_ADHOC: 6257 return "ADHOC"; 6258 case NL80211_IFTYPE_STATION: 6259 return "STATION"; 6260 case NL80211_IFTYPE_AP: 6261 return "AP"; 6262 case NL80211_IFTYPE_MONITOR: 6263 return "MONITOR"; 6264 case NL80211_IFTYPE_P2P_CLIENT: 6265 return "P2P_CLIENT"; 6266 case NL80211_IFTYPE_P2P_GO: 6267 return "P2P_GO"; 6268 default: 6269 return "unknown"; 6270 } 6271} 6272 6273 6274static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6275 const char *ifname, 6276 enum nl80211_iftype iftype, 6277 const u8 *addr, int wds) 6278{ 6279 struct nl_msg *msg, *flags = NULL; 6280 int ifidx; 6281 int ret = -ENOBUFS; 6282 6283 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6284 iftype, nl80211_iftype_str(iftype)); 6285 6286 msg = nlmsg_alloc(); 6287 if (!msg) 6288 return -1; 6289 6290 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6292 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6293 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6294 6295 if (iftype == NL80211_IFTYPE_MONITOR) { 6296 int err; 6297 6298 flags = nlmsg_alloc(); 6299 if (!flags) 6300 goto nla_put_failure; 6301 6302 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES); 6303 6304 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags); 6305 6306 nlmsg_free(flags); 6307 6308 if (err) 6309 goto nla_put_failure; 6310 } else if (wds) { 6311 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6312 } 6313 6314 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6315 msg = NULL; 6316 if (ret) { 6317 nla_put_failure: 6318 nlmsg_free(msg); 6319 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6320 ifname, ret, strerror(-ret)); 6321 return ret; 6322 } 6323 6324 ifidx = if_nametoindex(ifname); 6325 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6326 ifname, ifidx); 6327 6328 if (ifidx <= 0) 6329 return -1; 6330 6331 /* start listening for EAPOL on this interface */ 6332 add_ifidx(drv, ifidx); 6333 6334 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6335 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6336 nl80211_remove_iface(drv, ifidx); 6337 return -1; 6338 } 6339 6340 return ifidx; 6341} 6342 6343 6344static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6345 const char *ifname, enum nl80211_iftype iftype, 6346 const u8 *addr, int wds) 6347{ 6348 int ret; 6349 6350 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); 6351 6352 /* if error occurred and interface exists already */ 6353 if (ret == -ENFILE && if_nametoindex(ifname)) { 6354 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6355 6356 /* Try to remove the interface that was already there. */ 6357 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6358 6359 /* Try to create the interface again */ 6360 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6361 wds); 6362 } 6363 6364 if (ret >= 0 && is_p2p_interface(iftype)) 6365 nl80211_disable_11b_rates(drv, ret, 1); 6366 6367 return ret; 6368} 6369 6370 6371static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6372{ 6373 struct ieee80211_hdr *hdr; 6374 u16 fc; 6375 union wpa_event_data event; 6376 6377 hdr = (struct ieee80211_hdr *) buf; 6378 fc = le_to_host16(hdr->frame_control); 6379 6380 os_memset(&event, 0, sizeof(event)); 6381 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6382 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6383 event.tx_status.dst = hdr->addr1; 6384 event.tx_status.data = buf; 6385 event.tx_status.data_len = len; 6386 event.tx_status.ack = ok; 6387 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6388} 6389 6390 6391static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6392 u8 *buf, size_t len) 6393{ 6394 struct ieee80211_hdr *hdr = (void *)buf; 6395 u16 fc; 6396 union wpa_event_data event; 6397 6398 if (len < sizeof(*hdr)) 6399 return; 6400 6401 fc = le_to_host16(hdr->frame_control); 6402 6403 os_memset(&event, 0, sizeof(event)); 6404 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6405 event.rx_from_unknown.addr = hdr->addr2; 6406 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6407 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6408 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6409} 6410 6411 6412static void handle_frame(struct wpa_driver_nl80211_data *drv, 6413 u8 *buf, size_t len, int datarate, int ssi_signal) 6414{ 6415 struct ieee80211_hdr *hdr; 6416 u16 fc; 6417 union wpa_event_data event; 6418 6419 hdr = (struct ieee80211_hdr *) buf; 6420 fc = le_to_host16(hdr->frame_control); 6421 6422 switch (WLAN_FC_GET_TYPE(fc)) { 6423 case WLAN_FC_TYPE_MGMT: 6424 os_memset(&event, 0, sizeof(event)); 6425 event.rx_mgmt.frame = buf; 6426 event.rx_mgmt.frame_len = len; 6427 event.rx_mgmt.datarate = datarate; 6428 event.rx_mgmt.ssi_signal = ssi_signal; 6429 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6430 break; 6431 case WLAN_FC_TYPE_CTRL: 6432 /* can only get here with PS-Poll frames */ 6433 wpa_printf(MSG_DEBUG, "CTRL"); 6434 from_unknown_sta(drv, buf, len); 6435 break; 6436 case WLAN_FC_TYPE_DATA: 6437 from_unknown_sta(drv, buf, len); 6438 break; 6439 } 6440} 6441 6442 6443static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6444{ 6445 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6446 int len; 6447 unsigned char buf[3000]; 6448 struct ieee80211_radiotap_iterator iter; 6449 int ret; 6450 int datarate = 0, ssi_signal = 0; 6451 int injected = 0, failed = 0, rxflags = 0; 6452 6453 len = recv(sock, buf, sizeof(buf), 0); 6454 if (len < 0) { 6455 perror("recv"); 6456 return; 6457 } 6458 6459 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6460 printf("received invalid radiotap frame\n"); 6461 return; 6462 } 6463 6464 while (1) { 6465 ret = ieee80211_radiotap_iterator_next(&iter); 6466 if (ret == -ENOENT) 6467 break; 6468 if (ret) { 6469 printf("received invalid radiotap frame (%d)\n", ret); 6470 return; 6471 } 6472 switch (iter.this_arg_index) { 6473 case IEEE80211_RADIOTAP_FLAGS: 6474 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6475 len -= 4; 6476 break; 6477 case IEEE80211_RADIOTAP_RX_FLAGS: 6478 rxflags = 1; 6479 break; 6480 case IEEE80211_RADIOTAP_TX_FLAGS: 6481 injected = 1; 6482 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6483 IEEE80211_RADIOTAP_F_TX_FAIL; 6484 break; 6485 case IEEE80211_RADIOTAP_DATA_RETRIES: 6486 break; 6487 case IEEE80211_RADIOTAP_CHANNEL: 6488 /* TODO: convert from freq/flags to channel number */ 6489 break; 6490 case IEEE80211_RADIOTAP_RATE: 6491 datarate = *iter.this_arg * 5; 6492 break; 6493 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6494 ssi_signal = (s8) *iter.this_arg; 6495 break; 6496 } 6497 } 6498 6499 if (rxflags && injected) 6500 return; 6501 6502 if (!injected) 6503 handle_frame(drv, buf + iter.max_length, 6504 len - iter.max_length, datarate, ssi_signal); 6505 else 6506 handle_tx_callback(drv->ctx, buf + iter.max_length, 6507 len - iter.max_length, !failed); 6508} 6509 6510 6511/* 6512 * we post-process the filter code later and rewrite 6513 * this to the offset to the last instruction 6514 */ 6515#define PASS 0xFF 6516#define FAIL 0xFE 6517 6518static struct sock_filter msock_filter_insns[] = { 6519 /* 6520 * do a little-endian load of the radiotap length field 6521 */ 6522 /* load lower byte into A */ 6523 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 6524 /* put it into X (== index register) */ 6525 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6526 /* load upper byte into A */ 6527 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 6528 /* left-shift it by 8 */ 6529 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 6530 /* or with X */ 6531 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 6532 /* put result into X */ 6533 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6534 6535 /* 6536 * Allow management frames through, this also gives us those 6537 * management frames that we sent ourselves with status 6538 */ 6539 /* load the lower byte of the IEEE 802.11 frame control field */ 6540 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6541 /* mask off frame type and version */ 6542 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 6543 /* accept frame if it's both 0, fall through otherwise */ 6544 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 6545 6546 /* 6547 * TODO: add a bit to radiotap RX flags that indicates 6548 * that the sending station is not associated, then 6549 * add a filter here that filters on our DA and that flag 6550 * to allow us to deauth frames to that bad station. 6551 * 6552 * For now allow all To DS data frames through. 6553 */ 6554 /* load the IEEE 802.11 frame control field */ 6555 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 6556 /* mask off frame type, version and DS status */ 6557 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 6558 /* accept frame if version 0, type 2 and To DS, fall through otherwise 6559 */ 6560 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 6561 6562#if 0 6563 /* 6564 * drop non-data frames 6565 */ 6566 /* load the lower byte of the frame control field */ 6567 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6568 /* mask off QoS bit */ 6569 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 6570 /* drop non-data frames */ 6571 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 6572#endif 6573 /* load the upper byte of the frame control field */ 6574 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 6575 /* mask off toDS/fromDS */ 6576 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 6577 /* accept WDS frames */ 6578 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 6579 6580 /* 6581 * add header length to index 6582 */ 6583 /* load the lower byte of the frame control field */ 6584 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6585 /* mask off QoS bit */ 6586 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 6587 /* right shift it by 6 to give 0 or 2 */ 6588 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 6589 /* add data frame header length */ 6590 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 6591 /* add index, was start of 802.11 header */ 6592 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 6593 /* move to index, now start of LL header */ 6594 BPF_STMT(BPF_MISC | BPF_TAX, 0), 6595 6596 /* 6597 * Accept empty data frames, we use those for 6598 * polling activity. 6599 */ 6600 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 6601 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 6602 6603 /* 6604 * Accept EAPOL frames 6605 */ 6606 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 6607 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 6608 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 6609 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 6610 6611 /* keep these last two statements or change the code below */ 6612 /* return 0 == "DROP" */ 6613 BPF_STMT(BPF_RET | BPF_K, 0), 6614 /* return ~0 == "keep all" */ 6615 BPF_STMT(BPF_RET | BPF_K, ~0), 6616}; 6617 6618static struct sock_fprog msock_filter = { 6619 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 6620 .filter = msock_filter_insns, 6621}; 6622 6623 6624static int add_monitor_filter(int s) 6625{ 6626 int idx; 6627 6628 /* rewrite all PASS/FAIL jump offsets */ 6629 for (idx = 0; idx < msock_filter.len; idx++) { 6630 struct sock_filter *insn = &msock_filter_insns[idx]; 6631 6632 if (BPF_CLASS(insn->code) == BPF_JMP) { 6633 if (insn->code == (BPF_JMP|BPF_JA)) { 6634 if (insn->k == PASS) 6635 insn->k = msock_filter.len - idx - 2; 6636 else if (insn->k == FAIL) 6637 insn->k = msock_filter.len - idx - 3; 6638 } 6639 6640 if (insn->jt == PASS) 6641 insn->jt = msock_filter.len - idx - 2; 6642 else if (insn->jt == FAIL) 6643 insn->jt = msock_filter.len - idx - 3; 6644 6645 if (insn->jf == PASS) 6646 insn->jf = msock_filter.len - idx - 2; 6647 else if (insn->jf == FAIL) 6648 insn->jf = msock_filter.len - idx - 3; 6649 } 6650 } 6651 6652 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 6653 &msock_filter, sizeof(msock_filter))) { 6654 perror("SO_ATTACH_FILTER"); 6655 return -1; 6656 } 6657 6658 return 0; 6659} 6660 6661 6662static void nl80211_remove_monitor_interface( 6663 struct wpa_driver_nl80211_data *drv) 6664{ 6665 drv->monitor_refcount--; 6666 if (drv->monitor_refcount > 0) 6667 return; 6668 6669 if (drv->monitor_ifidx >= 0) { 6670 nl80211_remove_iface(drv, drv->monitor_ifidx); 6671 drv->monitor_ifidx = -1; 6672 } 6673 if (drv->monitor_sock >= 0) { 6674 eloop_unregister_read_sock(drv->monitor_sock); 6675 close(drv->monitor_sock); 6676 drv->monitor_sock = -1; 6677 } 6678} 6679 6680 6681static int 6682nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 6683{ 6684 char buf[IFNAMSIZ]; 6685 struct sockaddr_ll ll; 6686 int optval; 6687 socklen_t optlen; 6688 6689 if (drv->monitor_ifidx >= 0) { 6690 drv->monitor_refcount++; 6691 return 0; 6692 } 6693 6694 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 6695 /* 6696 * P2P interface name is of the format p2p-%s-%d. For monitor 6697 * interface name corresponding to P2P GO, replace "p2p-" with 6698 * "mon-" to retain the same interface name length and to 6699 * indicate that it is a monitor interface. 6700 */ 6701 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 6702 } else { 6703 /* Non-P2P interface with AP functionality. */ 6704 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 6705 } 6706 6707 buf[IFNAMSIZ - 1] = '\0'; 6708 6709 drv->monitor_ifidx = 6710 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 6711 0); 6712 6713 if (drv->monitor_ifidx == -EOPNOTSUPP) { 6714 /* 6715 * This is backward compatibility for a few versions of 6716 * the kernel only that didn't advertise the right 6717 * attributes for the only driver that then supported 6718 * AP mode w/o monitor -- ath6kl. 6719 */ 6720 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 6721 "monitor interface type - try to run without it"); 6722 drv->device_ap_sme = 1; 6723 } 6724 6725 if (drv->monitor_ifidx < 0) 6726 return -1; 6727 6728 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 6729 goto error; 6730 6731 memset(&ll, 0, sizeof(ll)); 6732 ll.sll_family = AF_PACKET; 6733 ll.sll_ifindex = drv->monitor_ifidx; 6734 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 6735 if (drv->monitor_sock < 0) { 6736 perror("socket[PF_PACKET,SOCK_RAW]"); 6737 goto error; 6738 } 6739 6740 if (add_monitor_filter(drv->monitor_sock)) { 6741 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 6742 "interface; do filtering in user space"); 6743 /* This works, but will cost in performance. */ 6744 } 6745 6746 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 6747 perror("monitor socket bind"); 6748 goto error; 6749 } 6750 6751 optlen = sizeof(optval); 6752 optval = 20; 6753 if (setsockopt 6754 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 6755 perror("Failed to set socket priority"); 6756 goto error; 6757 } 6758 6759 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 6760 drv, NULL)) { 6761 printf("Could not register monitor read socket\n"); 6762 goto error; 6763 } 6764 6765 return 0; 6766 error: 6767 nl80211_remove_monitor_interface(drv); 6768 return -1; 6769} 6770 6771 6772static int nl80211_setup_ap(struct i802_bss *bss) 6773{ 6774 struct wpa_driver_nl80211_data *drv = bss->drv; 6775 6776 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 6777 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 6778 6779 /* 6780 * Disable Probe Request reporting unless we need it in this way for 6781 * devices that include the AP SME, in the other case (unless using 6782 * monitor iface) we'll get it through the nl_mgmt socket instead. 6783 */ 6784 if (!drv->device_ap_sme) 6785 wpa_driver_nl80211_probe_req_report(bss, 0); 6786 6787 if (!drv->device_ap_sme && !drv->use_monitor) 6788 if (nl80211_mgmt_subscribe_ap(bss)) 6789 return -1; 6790 6791 if (drv->device_ap_sme && !drv->use_monitor) 6792 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6793 return -1; 6794 6795 if (!drv->device_ap_sme && drv->use_monitor && 6796 nl80211_create_monitor_interface(drv) && 6797 !drv->device_ap_sme) 6798 return -1; 6799 6800#ifdef ANDROID_P2P 6801 if (drv->device_ap_sme && drv->use_monitor) 6802 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6803 return -1; 6804 6805 if (drv->use_monitor && 6806 nl80211_create_monitor_interface(drv)) 6807 return -1; 6808#endif 6809 6810 if (drv->device_ap_sme && 6811 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 6812 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 6813 "Probe Request frame reporting in AP mode"); 6814 /* Try to survive without this */ 6815 } 6816 6817 return 0; 6818} 6819 6820 6821static void nl80211_teardown_ap(struct i802_bss *bss) 6822{ 6823 struct wpa_driver_nl80211_data *drv = bss->drv; 6824 6825 if (drv->device_ap_sme) { 6826 wpa_driver_nl80211_probe_req_report(bss, 0); 6827 if (!drv->use_monitor) 6828 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 6829 } else if (drv->use_monitor) 6830 nl80211_remove_monitor_interface(drv); 6831 else 6832 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 6833 6834 bss->beacon_set = 0; 6835} 6836 6837 6838static int nl80211_send_eapol_data(struct i802_bss *bss, 6839 const u8 *addr, const u8 *data, 6840 size_t data_len) 6841{ 6842 struct sockaddr_ll ll; 6843 int ret; 6844 6845 if (bss->drv->eapol_tx_sock < 0) { 6846 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 6847 return -1; 6848 } 6849 6850 os_memset(&ll, 0, sizeof(ll)); 6851 ll.sll_family = AF_PACKET; 6852 ll.sll_ifindex = bss->ifindex; 6853 ll.sll_protocol = htons(ETH_P_PAE); 6854 ll.sll_halen = ETH_ALEN; 6855 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 6856 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 6857 (struct sockaddr *) &ll, sizeof(ll)); 6858 if (ret < 0) 6859 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 6860 strerror(errno)); 6861 6862 return ret; 6863} 6864 6865 6866static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 6867 6868static int wpa_driver_nl80211_hapd_send_eapol( 6869 void *priv, const u8 *addr, const u8 *data, 6870 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 6871{ 6872 struct i802_bss *bss = priv; 6873 struct wpa_driver_nl80211_data *drv = bss->drv; 6874 struct ieee80211_hdr *hdr; 6875 size_t len; 6876 u8 *pos; 6877 int res; 6878 int qos = flags & WPA_STA_WMM; 6879#ifndef ANDROID_P2P 6880 if (drv->device_ap_sme || !drv->use_monitor) 6881#else 6882 if (drv->device_ap_sme && !drv->use_monitor) 6883#endif 6884 return nl80211_send_eapol_data(bss, addr, data, data_len); 6885 6886 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 6887 data_len; 6888 hdr = os_zalloc(len); 6889 if (hdr == NULL) { 6890 printf("malloc() failed for i802_send_data(len=%lu)\n", 6891 (unsigned long) len); 6892 return -1; 6893 } 6894 6895 hdr->frame_control = 6896 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 6897 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 6898 if (encrypt) 6899 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 6900 if (qos) { 6901 hdr->frame_control |= 6902 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 6903 } 6904 6905 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 6906 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 6907 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 6908 pos = (u8 *) (hdr + 1); 6909 6910 if (qos) { 6911 /* Set highest priority in QoS header */ 6912 pos[0] = 7; 6913 pos[1] = 0; 6914 pos += 2; 6915 } 6916 6917 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 6918 pos += sizeof(rfc1042_header); 6919 WPA_PUT_BE16(pos, ETH_P_PAE); 6920 pos += 2; 6921 memcpy(pos, data, data_len); 6922 6923 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 6924 0, 0, 0, 0); 6925 if (res < 0) { 6926 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 6927 "failed: %d (%s)", 6928 (unsigned long) len, errno, strerror(errno)); 6929 } 6930 os_free(hdr); 6931 6932 return res; 6933} 6934 6935 6936static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 6937 int total_flags, 6938 int flags_or, int flags_and) 6939{ 6940 struct i802_bss *bss = priv; 6941 struct wpa_driver_nl80211_data *drv = bss->drv; 6942 struct nl_msg *msg, *flags = NULL; 6943 struct nl80211_sta_flag_update upd; 6944 6945 msg = nlmsg_alloc(); 6946 if (!msg) 6947 return -ENOMEM; 6948 6949 flags = nlmsg_alloc(); 6950 if (!flags) { 6951 nlmsg_free(msg); 6952 return -ENOMEM; 6953 } 6954 6955 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 6956 6957 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6958 if_nametoindex(bss->ifname)); 6959 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6960 6961 /* 6962 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 6963 * can be removed eventually. 6964 */ 6965 if (total_flags & WPA_STA_AUTHORIZED) 6966 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED); 6967 6968 if (total_flags & WPA_STA_WMM) 6969 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME); 6970 6971 if (total_flags & WPA_STA_SHORT_PREAMBLE) 6972 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE); 6973 6974 if (total_flags & WPA_STA_MFP) 6975 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP); 6976 6977 if (total_flags & WPA_STA_TDLS_PEER) 6978 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER); 6979 6980 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags)) 6981 goto nla_put_failure; 6982 6983 os_memset(&upd, 0, sizeof(upd)); 6984 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 6985 upd.set = sta_flags_nl80211(flags_or); 6986 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6987 6988 nlmsg_free(flags); 6989 6990 return send_and_recv_msgs(drv, msg, NULL, NULL); 6991 nla_put_failure: 6992 nlmsg_free(msg); 6993 nlmsg_free(flags); 6994 return -ENOBUFS; 6995} 6996 6997 6998static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 6999 struct wpa_driver_associate_params *params) 7000{ 7001 enum nl80211_iftype nlmode, old_mode; 7002 struct hostapd_freq_params freq = { 7003 .freq = params->freq, 7004 }; 7005 7006 if (params->p2p) { 7007 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7008 "group (GO)"); 7009 nlmode = NL80211_IFTYPE_P2P_GO; 7010 } else 7011 nlmode = NL80211_IFTYPE_AP; 7012 7013 old_mode = drv->nlmode; 7014 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7015 nl80211_remove_monitor_interface(drv); 7016 return -1; 7017 } 7018 7019 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7020 if (old_mode != nlmode) 7021 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7022 nl80211_remove_monitor_interface(drv); 7023 return -1; 7024 } 7025 7026 return 0; 7027} 7028 7029 7030static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7031{ 7032 struct nl_msg *msg; 7033 int ret = -1; 7034 7035 msg = nlmsg_alloc(); 7036 if (!msg) 7037 return -1; 7038 7039 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7040 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7041 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7042 msg = NULL; 7043 if (ret) { 7044 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7045 "(%s)", ret, strerror(-ret)); 7046 goto nla_put_failure; 7047 } 7048 7049 ret = 0; 7050 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7051 7052nla_put_failure: 7053 nlmsg_free(msg); 7054 return ret; 7055} 7056 7057 7058static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7059 struct wpa_driver_associate_params *params) 7060{ 7061 struct nl_msg *msg; 7062 int ret = -1; 7063 int count = 0; 7064 7065 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7066 7067 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7068 NL80211_IFTYPE_ADHOC)) { 7069 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7070 "IBSS mode"); 7071 return -1; 7072 } 7073 7074retry: 7075 msg = nlmsg_alloc(); 7076 if (!msg) 7077 return -1; 7078 7079 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7080 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7081 7082 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7083 goto nla_put_failure; 7084 7085 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7086 params->ssid, params->ssid_len); 7087 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7088 params->ssid); 7089 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7090 drv->ssid_len = params->ssid_len; 7091 7092 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7093 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7094 7095 ret = nl80211_set_conn_keys(params, msg); 7096 if (ret) 7097 goto nla_put_failure; 7098 7099 if (params->bssid && params->fixed_bssid) { 7100 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7101 MAC2STR(params->bssid)); 7102 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7103 } 7104 7105 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7106 params->key_mgmt_suite == KEY_MGMT_PSK || 7107 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7108 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7109 wpa_printf(MSG_DEBUG, " * control port"); 7110 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7111 } 7112 7113 if (params->wpa_ie) { 7114 wpa_hexdump(MSG_DEBUG, 7115 " * Extra IEs for Beacon/Probe Response frames", 7116 params->wpa_ie, params->wpa_ie_len); 7117 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7118 params->wpa_ie); 7119 } 7120 7121 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7122 msg = NULL; 7123 if (ret) { 7124 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7125 ret, strerror(-ret)); 7126 count++; 7127 if (ret == -EALREADY && count == 1) { 7128 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7129 "forced leave"); 7130 nl80211_leave_ibss(drv); 7131 nlmsg_free(msg); 7132 goto retry; 7133 } 7134 7135 goto nla_put_failure; 7136 } 7137 ret = 0; 7138 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7139 7140nla_put_failure: 7141 nlmsg_free(msg); 7142 return ret; 7143} 7144 7145 7146static int wpa_driver_nl80211_try_connect( 7147 struct wpa_driver_nl80211_data *drv, 7148 struct wpa_driver_associate_params *params) 7149{ 7150 struct nl_msg *msg; 7151 enum nl80211_auth_type type; 7152 int ret = 0; 7153 int algs; 7154 7155 msg = nlmsg_alloc(); 7156 if (!msg) 7157 return -1; 7158 7159 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7160 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7161 7162 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7163 if (params->bssid) { 7164 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7165 MAC2STR(params->bssid)); 7166 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7167 } 7168 if (params->freq) { 7169 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7170 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7171 } 7172 if (params->bg_scan_period >= 0) { 7173 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7174 params->bg_scan_period); 7175 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7176 params->bg_scan_period); 7177 } 7178 if (params->ssid) { 7179 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7180 params->ssid, params->ssid_len); 7181 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7182 params->ssid); 7183 if (params->ssid_len > sizeof(drv->ssid)) 7184 goto nla_put_failure; 7185 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7186 drv->ssid_len = params->ssid_len; 7187 } 7188 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7189 if (params->wpa_ie) 7190 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7191 params->wpa_ie); 7192 7193 algs = 0; 7194 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7195 algs++; 7196 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7197 algs++; 7198 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7199 algs++; 7200 if (algs > 1) { 7201 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7202 "selection"); 7203 goto skip_auth_type; 7204 } 7205 7206 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7207 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7208 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7209 type = NL80211_AUTHTYPE_SHARED_KEY; 7210 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7211 type = NL80211_AUTHTYPE_NETWORK_EAP; 7212 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7213 type = NL80211_AUTHTYPE_FT; 7214 else 7215 goto nla_put_failure; 7216 7217 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7218 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7219 7220skip_auth_type: 7221 if (params->wpa_proto) { 7222 enum nl80211_wpa_versions ver = 0; 7223 7224 if (params->wpa_proto & WPA_PROTO_WPA) 7225 ver |= NL80211_WPA_VERSION_1; 7226 if (params->wpa_proto & WPA_PROTO_RSN) 7227 ver |= NL80211_WPA_VERSION_2; 7228 7229 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7230 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7231 } 7232 7233 if (params->pairwise_suite != CIPHER_NONE) { 7234 int cipher; 7235 7236 switch (params->pairwise_suite) { 7237 case CIPHER_SMS4: 7238 cipher = WLAN_CIPHER_SUITE_SMS4; 7239 break; 7240 case CIPHER_WEP40: 7241 cipher = WLAN_CIPHER_SUITE_WEP40; 7242 break; 7243 case CIPHER_WEP104: 7244 cipher = WLAN_CIPHER_SUITE_WEP104; 7245 break; 7246 case CIPHER_CCMP: 7247 cipher = WLAN_CIPHER_SUITE_CCMP; 7248 break; 7249 case CIPHER_GCMP: 7250 cipher = WLAN_CIPHER_SUITE_GCMP; 7251 break; 7252 case CIPHER_TKIP: 7253 default: 7254 cipher = WLAN_CIPHER_SUITE_TKIP; 7255 break; 7256 } 7257 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7258 } 7259 7260 if (params->group_suite != CIPHER_NONE) { 7261 int cipher; 7262 7263 switch (params->group_suite) { 7264 case CIPHER_SMS4: 7265 cipher = WLAN_CIPHER_SUITE_SMS4; 7266 break; 7267 case CIPHER_WEP40: 7268 cipher = WLAN_CIPHER_SUITE_WEP40; 7269 break; 7270 case CIPHER_WEP104: 7271 cipher = WLAN_CIPHER_SUITE_WEP104; 7272 break; 7273 case CIPHER_CCMP: 7274 cipher = WLAN_CIPHER_SUITE_CCMP; 7275 break; 7276 case CIPHER_GCMP: 7277 cipher = WLAN_CIPHER_SUITE_GCMP; 7278 break; 7279 case CIPHER_TKIP: 7280 default: 7281 cipher = WLAN_CIPHER_SUITE_TKIP; 7282 break; 7283 } 7284 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7285 } 7286 7287 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7288 params->key_mgmt_suite == KEY_MGMT_PSK || 7289 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7290 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7291 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7292 int mgmt = WLAN_AKM_SUITE_PSK; 7293 7294 switch (params->key_mgmt_suite) { 7295 case KEY_MGMT_CCKM: 7296 mgmt = WLAN_AKM_SUITE_CCKM; 7297 break; 7298 case KEY_MGMT_802_1X: 7299 mgmt = WLAN_AKM_SUITE_8021X; 7300 break; 7301 case KEY_MGMT_FT_802_1X: 7302 mgmt = WLAN_AKM_SUITE_FT_8021X; 7303 break; 7304 case KEY_MGMT_FT_PSK: 7305 mgmt = WLAN_AKM_SUITE_FT_PSK; 7306 break; 7307 case KEY_MGMT_PSK: 7308 default: 7309 mgmt = WLAN_AKM_SUITE_PSK; 7310 break; 7311 } 7312 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7313 } 7314 7315#ifdef CONFIG_IEEE80211W 7316 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7317 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7318#endif /* CONFIG_IEEE80211W */ 7319 7320 if (params->disable_ht) 7321 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7322 7323 if (params->htcaps && params->htcaps_mask) { 7324 int sz = sizeof(struct ieee80211_ht_capabilities); 7325 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7326 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7327 params->htcaps_mask); 7328 } 7329 7330#ifdef CONFIG_VHT_OVERRIDES 7331 if (params->disable_vht) { 7332 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7333 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7334 } 7335 7336 if (params->vhtcaps && params->vhtcaps_mask) { 7337 int sz = sizeof(struct ieee80211_vht_capabilities); 7338 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7339 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7340 params->vhtcaps_mask); 7341 } 7342#endif /* CONFIG_VHT_OVERRIDES */ 7343 7344 ret = nl80211_set_conn_keys(params, msg); 7345 if (ret) 7346 goto nla_put_failure; 7347 7348 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7349 msg = NULL; 7350 if (ret) { 7351 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7352 "(%s)", ret, strerror(-ret)); 7353 goto nla_put_failure; 7354 } 7355 ret = 0; 7356 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7357 7358nla_put_failure: 7359 nlmsg_free(msg); 7360 return ret; 7361 7362} 7363 7364 7365static int wpa_driver_nl80211_connect( 7366 struct wpa_driver_nl80211_data *drv, 7367 struct wpa_driver_associate_params *params) 7368{ 7369 int ret = wpa_driver_nl80211_try_connect(drv, params); 7370 if (ret == -EALREADY) { 7371 /* 7372 * cfg80211 does not currently accept new connections if 7373 * we are already connected. As a workaround, force 7374 * disconnection and try again. 7375 */ 7376 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7377 "disconnecting before reassociation " 7378 "attempt"); 7379 if (wpa_driver_nl80211_disconnect( 7380 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7381 return -1; 7382 /* Ignore the next local disconnect message. */ 7383 drv->ignore_next_local_disconnect = 1; 7384 ret = wpa_driver_nl80211_try_connect(drv, params); 7385 } 7386 return ret; 7387} 7388 7389 7390static int wpa_driver_nl80211_associate( 7391 void *priv, struct wpa_driver_associate_params *params) 7392{ 7393 struct i802_bss *bss = priv; 7394 struct wpa_driver_nl80211_data *drv = bss->drv; 7395 int ret = -1; 7396 struct nl_msg *msg; 7397 7398 if (params->mode == IEEE80211_MODE_AP) 7399 return wpa_driver_nl80211_ap(drv, params); 7400 7401 if (params->mode == IEEE80211_MODE_IBSS) 7402 return wpa_driver_nl80211_ibss(drv, params); 7403 7404 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7405 enum nl80211_iftype nlmode = params->p2p ? 7406 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7407 7408 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7409 return -1; 7410 return wpa_driver_nl80211_connect(drv, params); 7411 } 7412 7413 drv->associated = 0; 7414 7415 msg = nlmsg_alloc(); 7416 if (!msg) 7417 return -1; 7418 7419 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7420 drv->ifindex); 7421 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7422 7423 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7424 if (params->bssid) { 7425 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7426 MAC2STR(params->bssid)); 7427 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7428 } 7429 if (params->freq) { 7430 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7431 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7432 drv->assoc_freq = params->freq; 7433 } else 7434 drv->assoc_freq = 0; 7435 if (params->bg_scan_period >= 0) { 7436 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7437 params->bg_scan_period); 7438 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7439 params->bg_scan_period); 7440 } 7441 if (params->ssid) { 7442 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7443 params->ssid, params->ssid_len); 7444 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7445 params->ssid); 7446 if (params->ssid_len > sizeof(drv->ssid)) 7447 goto nla_put_failure; 7448 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7449 drv->ssid_len = params->ssid_len; 7450 } 7451 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7452 if (params->wpa_ie) 7453 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7454 params->wpa_ie); 7455 7456 if (params->pairwise_suite != CIPHER_NONE) { 7457 int cipher; 7458 7459 switch (params->pairwise_suite) { 7460 case CIPHER_WEP40: 7461 cipher = WLAN_CIPHER_SUITE_WEP40; 7462 break; 7463 case CIPHER_WEP104: 7464 cipher = WLAN_CIPHER_SUITE_WEP104; 7465 break; 7466 case CIPHER_CCMP: 7467 cipher = WLAN_CIPHER_SUITE_CCMP; 7468 break; 7469 case CIPHER_GCMP: 7470 cipher = WLAN_CIPHER_SUITE_GCMP; 7471 break; 7472 case CIPHER_TKIP: 7473 default: 7474 cipher = WLAN_CIPHER_SUITE_TKIP; 7475 break; 7476 } 7477 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7478 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7479 } 7480 7481 if (params->group_suite != CIPHER_NONE) { 7482 int cipher; 7483 7484 switch (params->group_suite) { 7485 case CIPHER_WEP40: 7486 cipher = WLAN_CIPHER_SUITE_WEP40; 7487 break; 7488 case CIPHER_WEP104: 7489 cipher = WLAN_CIPHER_SUITE_WEP104; 7490 break; 7491 case CIPHER_CCMP: 7492 cipher = WLAN_CIPHER_SUITE_CCMP; 7493 break; 7494 case CIPHER_GCMP: 7495 cipher = WLAN_CIPHER_SUITE_GCMP; 7496 break; 7497 case CIPHER_TKIP: 7498 default: 7499 cipher = WLAN_CIPHER_SUITE_TKIP; 7500 break; 7501 } 7502 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7503 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7504 } 7505 7506#ifdef CONFIG_IEEE80211W 7507 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7508 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7509#endif /* CONFIG_IEEE80211W */ 7510 7511 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7512 7513 if (params->prev_bssid) { 7514 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 7515 MAC2STR(params->prev_bssid)); 7516 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 7517 params->prev_bssid); 7518 } 7519 7520 if (params->disable_ht) 7521 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7522 7523 if (params->htcaps && params->htcaps_mask) { 7524 int sz = sizeof(struct ieee80211_ht_capabilities); 7525 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7526 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7527 params->htcaps_mask); 7528 } 7529 7530#ifdef CONFIG_VHT_OVERRIDES 7531 if (params->disable_vht) { 7532 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7533 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7534 } 7535 7536 if (params->vhtcaps && params->vhtcaps_mask) { 7537 int sz = sizeof(struct ieee80211_vht_capabilities); 7538 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7539 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7540 params->vhtcaps_mask); 7541 } 7542#endif /* CONFIG_VHT_OVERRIDES */ 7543 7544 if (params->p2p) 7545 wpa_printf(MSG_DEBUG, " * P2P group"); 7546 7547 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7548 msg = NULL; 7549 if (ret) { 7550 wpa_dbg(drv->ctx, MSG_DEBUG, 7551 "nl80211: MLME command failed (assoc): ret=%d (%s)", 7552 ret, strerror(-ret)); 7553 nl80211_dump_scan(drv); 7554 goto nla_put_failure; 7555 } 7556 ret = 0; 7557 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 7558 "successfully"); 7559 7560nla_put_failure: 7561 nlmsg_free(msg); 7562 return ret; 7563} 7564 7565 7566static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 7567 int ifindex, enum nl80211_iftype mode) 7568{ 7569 struct nl_msg *msg; 7570 int ret = -ENOBUFS; 7571 7572 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 7573 ifindex, mode, nl80211_iftype_str(mode)); 7574 7575 msg = nlmsg_alloc(); 7576 if (!msg) 7577 return -ENOMEM; 7578 7579 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 7580 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7581 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 7582 7583 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7584 msg = NULL; 7585 if (!ret) 7586 return 0; 7587nla_put_failure: 7588 nlmsg_free(msg); 7589 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 7590 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 7591 return ret; 7592} 7593 7594 7595static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 7596 enum nl80211_iftype nlmode) 7597{ 7598 struct wpa_driver_nl80211_data *drv = bss->drv; 7599 int ret = -1; 7600 int i; 7601 int was_ap = is_ap_interface(drv->nlmode); 7602 int res; 7603 7604 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 7605 if (res == 0) { 7606 drv->nlmode = nlmode; 7607 ret = 0; 7608 goto done; 7609 } 7610 7611 if (res == -ENODEV) 7612 return -1; 7613 7614 if (nlmode == drv->nlmode) { 7615 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 7616 "requested mode - ignore error"); 7617 ret = 0; 7618 goto done; /* Already in the requested mode */ 7619 } 7620 7621 /* mac80211 doesn't allow mode changes while the device is up, so 7622 * take the device down, try to set the mode again, and bring the 7623 * device back up. 7624 */ 7625 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 7626 "interface down"); 7627 for (i = 0; i < 10; i++) { 7628 res = linux_set_iface_flags(drv->global->ioctl_sock, 7629 bss->ifname, 0); 7630 if (res == -EACCES || res == -ENODEV) 7631 break; 7632 if (res == 0) { 7633 /* Try to set the mode again while the interface is 7634 * down */ 7635 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 7636 if (ret == -EACCES) 7637 break; 7638 res = linux_set_iface_flags(drv->global->ioctl_sock, 7639 bss->ifname, 1); 7640 if (res && !ret) 7641 ret = -1; 7642 else if (ret != -EBUSY) 7643 break; 7644 } else 7645 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 7646 "interface down"); 7647 os_sleep(0, 100000); 7648 } 7649 7650 if (!ret) { 7651 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 7652 "interface is down"); 7653 drv->nlmode = nlmode; 7654 drv->ignore_if_down_event = 1; 7655 } 7656 7657done: 7658 if (ret) { 7659 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 7660 "from %d failed", nlmode, drv->nlmode); 7661 return ret; 7662 } 7663 7664 if (is_p2p_interface(nlmode)) 7665 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 7666 else if (drv->disabled_11b_rates) 7667 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 7668 7669 if (is_ap_interface(nlmode)) { 7670 nl80211_mgmt_unsubscribe(bss, "start AP"); 7671 /* Setup additional AP mode functionality if needed */ 7672 if (nl80211_setup_ap(bss)) 7673 return -1; 7674 } else if (was_ap) { 7675 /* Remove additional AP mode functionality */ 7676 nl80211_teardown_ap(bss); 7677 } else { 7678 nl80211_mgmt_unsubscribe(bss, "mode change"); 7679 } 7680 7681 if (!bss->in_deinit && !is_ap_interface(nlmode) && 7682 nl80211_mgmt_subscribe_non_ap(bss) < 0) 7683 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 7684 "frame processing - ignore for now"); 7685 7686 return 0; 7687} 7688 7689 7690static int wpa_driver_nl80211_get_capa(void *priv, 7691 struct wpa_driver_capa *capa) 7692{ 7693 struct i802_bss *bss = priv; 7694 struct wpa_driver_nl80211_data *drv = bss->drv; 7695 if (!drv->has_capability) 7696 return -1; 7697 os_memcpy(capa, &drv->capa, sizeof(*capa)); 7698 if (drv->extended_capa && drv->extended_capa_mask) { 7699 capa->extended_capa = drv->extended_capa; 7700 capa->extended_capa_mask = drv->extended_capa_mask; 7701 capa->extended_capa_len = drv->extended_capa_len; 7702 } 7703 return 0; 7704} 7705 7706 7707static int wpa_driver_nl80211_set_operstate(void *priv, int state) 7708{ 7709 struct i802_bss *bss = priv; 7710 struct wpa_driver_nl80211_data *drv = bss->drv; 7711 7712 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 7713 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 7714 drv->operstate = state; 7715 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 7716 state ? IF_OPER_UP : IF_OPER_DORMANT); 7717} 7718 7719 7720static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 7721{ 7722 struct i802_bss *bss = priv; 7723 struct wpa_driver_nl80211_data *drv = bss->drv; 7724 struct nl_msg *msg; 7725 struct nl80211_sta_flag_update upd; 7726 7727 msg = nlmsg_alloc(); 7728 if (!msg) 7729 return -ENOMEM; 7730 7731 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7732 7733 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7734 if_nametoindex(bss->ifname)); 7735 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 7736 7737 os_memset(&upd, 0, sizeof(upd)); 7738 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 7739 if (authorized) 7740 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 7741 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7742 7743 return send_and_recv_msgs(drv, msg, NULL, NULL); 7744 nla_put_failure: 7745 nlmsg_free(msg); 7746 return -ENOBUFS; 7747} 7748 7749 7750/* Set kernel driver on given frequency (MHz) */ 7751static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 7752{ 7753 struct i802_bss *bss = priv; 7754 return wpa_driver_nl80211_set_freq(bss, freq); 7755} 7756 7757 7758#if defined(HOSTAPD) || defined(CONFIG_AP) 7759 7760static inline int min_int(int a, int b) 7761{ 7762 if (a < b) 7763 return a; 7764 return b; 7765} 7766 7767 7768static int get_key_handler(struct nl_msg *msg, void *arg) 7769{ 7770 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7771 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7772 7773 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7774 genlmsg_attrlen(gnlh, 0), NULL); 7775 7776 /* 7777 * TODO: validate the key index and mac address! 7778 * Otherwise, there's a race condition as soon as 7779 * the kernel starts sending key notifications. 7780 */ 7781 7782 if (tb[NL80211_ATTR_KEY_SEQ]) 7783 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 7784 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 7785 return NL_SKIP; 7786} 7787 7788 7789static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 7790 int idx, u8 *seq) 7791{ 7792 struct i802_bss *bss = priv; 7793 struct wpa_driver_nl80211_data *drv = bss->drv; 7794 struct nl_msg *msg; 7795 7796 msg = nlmsg_alloc(); 7797 if (!msg) 7798 return -ENOMEM; 7799 7800 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 7801 7802 if (addr) 7803 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7804 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 7805 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 7806 7807 memset(seq, 0, 6); 7808 7809 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 7810 nla_put_failure: 7811 nlmsg_free(msg); 7812 return -ENOBUFS; 7813} 7814 7815 7816static int i802_set_rts(void *priv, int rts) 7817{ 7818 struct i802_bss *bss = priv; 7819 struct wpa_driver_nl80211_data *drv = bss->drv; 7820 struct nl_msg *msg; 7821 int ret = -ENOBUFS; 7822 u32 val; 7823 7824 msg = nlmsg_alloc(); 7825 if (!msg) 7826 return -ENOMEM; 7827 7828 if (rts >= 2347) 7829 val = (u32) -1; 7830 else 7831 val = rts; 7832 7833 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7834 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 7836 7837 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7838 msg = NULL; 7839 if (!ret) 7840 return 0; 7841nla_put_failure: 7842 nlmsg_free(msg); 7843 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 7844 "%d (%s)", rts, ret, strerror(-ret)); 7845 return ret; 7846} 7847 7848 7849static int i802_set_frag(void *priv, int frag) 7850{ 7851 struct i802_bss *bss = priv; 7852 struct wpa_driver_nl80211_data *drv = bss->drv; 7853 struct nl_msg *msg; 7854 int ret = -ENOBUFS; 7855 u32 val; 7856 7857 msg = nlmsg_alloc(); 7858 if (!msg) 7859 return -ENOMEM; 7860 7861 if (frag >= 2346) 7862 val = (u32) -1; 7863 else 7864 val = frag; 7865 7866 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7867 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7868 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 7869 7870 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7871 msg = NULL; 7872 if (!ret) 7873 return 0; 7874nla_put_failure: 7875 nlmsg_free(msg); 7876 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 7877 "%d: %d (%s)", frag, ret, strerror(-ret)); 7878 return ret; 7879} 7880 7881 7882static int i802_flush(void *priv) 7883{ 7884 struct i802_bss *bss = priv; 7885 struct wpa_driver_nl80211_data *drv = bss->drv; 7886 struct nl_msg *msg; 7887 int res; 7888 7889 msg = nlmsg_alloc(); 7890 if (!msg) 7891 return -1; 7892 7893 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 7894 7895 /* 7896 * XXX: FIX! this needs to flush all VLANs too 7897 */ 7898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7899 if_nametoindex(bss->ifname)); 7900 7901 res = send_and_recv_msgs(drv, msg, NULL, NULL); 7902 if (res) { 7903 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 7904 "(%s)", res, strerror(-res)); 7905 } 7906 return res; 7907 nla_put_failure: 7908 nlmsg_free(msg); 7909 return -ENOBUFS; 7910} 7911 7912#endif /* HOSTAPD || CONFIG_AP */ 7913 7914 7915static int get_sta_handler(struct nl_msg *msg, void *arg) 7916{ 7917 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7918 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7919 struct hostap_sta_driver_data *data = arg; 7920 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 7921 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 7922 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 7923 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 7924 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 7925 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 7926 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 7927 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 7928 }; 7929 7930 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7931 genlmsg_attrlen(gnlh, 0), NULL); 7932 7933 /* 7934 * TODO: validate the interface and mac address! 7935 * Otherwise, there's a race condition as soon as 7936 * the kernel starts sending station notifications. 7937 */ 7938 7939 if (!tb[NL80211_ATTR_STA_INFO]) { 7940 wpa_printf(MSG_DEBUG, "sta stats missing!"); 7941 return NL_SKIP; 7942 } 7943 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 7944 tb[NL80211_ATTR_STA_INFO], 7945 stats_policy)) { 7946 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 7947 return NL_SKIP; 7948 } 7949 7950 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 7951 data->inactive_msec = 7952 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 7953 if (stats[NL80211_STA_INFO_RX_BYTES]) 7954 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 7955 if (stats[NL80211_STA_INFO_TX_BYTES]) 7956 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 7957 if (stats[NL80211_STA_INFO_RX_PACKETS]) 7958 data->rx_packets = 7959 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 7960 if (stats[NL80211_STA_INFO_TX_PACKETS]) 7961 data->tx_packets = 7962 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 7963 if (stats[NL80211_STA_INFO_TX_FAILED]) 7964 data->tx_retry_failed = 7965 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 7966 7967 return NL_SKIP; 7968} 7969 7970static int i802_read_sta_data(struct i802_bss *bss, 7971 struct hostap_sta_driver_data *data, 7972 const u8 *addr) 7973{ 7974 struct wpa_driver_nl80211_data *drv = bss->drv; 7975 struct nl_msg *msg; 7976 7977 os_memset(data, 0, sizeof(*data)); 7978 msg = nlmsg_alloc(); 7979 if (!msg) 7980 return -ENOMEM; 7981 7982 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 7983 7984 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7985 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 7986 7987 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 7988 nla_put_failure: 7989 nlmsg_free(msg); 7990 return -ENOBUFS; 7991} 7992 7993 7994#if defined(HOSTAPD) || defined(CONFIG_AP) 7995 7996static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 7997 int cw_min, int cw_max, int burst_time) 7998{ 7999 struct i802_bss *bss = priv; 8000 struct wpa_driver_nl80211_data *drv = bss->drv; 8001 struct nl_msg *msg; 8002 struct nlattr *txq, *params; 8003 8004 msg = nlmsg_alloc(); 8005 if (!msg) 8006 return -1; 8007 8008 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8009 8010 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8011 8012 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8013 if (!txq) 8014 goto nla_put_failure; 8015 8016 /* We are only sending parameters for a single TXQ at a time */ 8017 params = nla_nest_start(msg, 1); 8018 if (!params) 8019 goto nla_put_failure; 8020 8021 switch (queue) { 8022 case 0: 8023 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8024 break; 8025 case 1: 8026 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8027 break; 8028 case 2: 8029 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8030 break; 8031 case 3: 8032 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8033 break; 8034 } 8035 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8036 * 32 usec, so need to convert the value here. */ 8037 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8038 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8039 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8040 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8041 8042 nla_nest_end(msg, params); 8043 8044 nla_nest_end(msg, txq); 8045 8046 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8047 return 0; 8048 msg = NULL; 8049 nla_put_failure: 8050 nlmsg_free(msg); 8051 return -1; 8052} 8053 8054 8055static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8056 const char *ifname, int vlan_id) 8057{ 8058 struct wpa_driver_nl80211_data *drv = bss->drv; 8059 struct nl_msg *msg; 8060 int ret = -ENOBUFS; 8061 8062 msg = nlmsg_alloc(); 8063 if (!msg) 8064 return -ENOMEM; 8065 8066 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8067 8068 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8069 if_nametoindex(bss->ifname)); 8070 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8071 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8072 if_nametoindex(ifname)); 8073 8074 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8075 msg = NULL; 8076 if (ret < 0) { 8077 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8078 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8079 MAC2STR(addr), ifname, vlan_id, ret, 8080 strerror(-ret)); 8081 } 8082 nla_put_failure: 8083 nlmsg_free(msg); 8084 return ret; 8085} 8086 8087 8088static int i802_get_inact_sec(void *priv, const u8 *addr) 8089{ 8090 struct hostap_sta_driver_data data; 8091 int ret; 8092 8093 data.inactive_msec = (unsigned long) -1; 8094 ret = i802_read_sta_data(priv, &data, addr); 8095 if (ret || data.inactive_msec == (unsigned long) -1) 8096 return -1; 8097 return data.inactive_msec / 1000; 8098} 8099 8100 8101static int i802_sta_clear_stats(void *priv, const u8 *addr) 8102{ 8103#if 0 8104 /* TODO */ 8105#endif 8106 return 0; 8107} 8108 8109 8110static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8111 int reason) 8112{ 8113 struct i802_bss *bss = priv; 8114 struct wpa_driver_nl80211_data *drv = bss->drv; 8115 struct ieee80211_mgmt mgmt; 8116 8117 if (drv->device_ap_sme) 8118 return wpa_driver_nl80211_sta_remove(bss, addr); 8119 8120 memset(&mgmt, 0, sizeof(mgmt)); 8121 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8122 WLAN_FC_STYPE_DEAUTH); 8123 memcpy(mgmt.da, addr, ETH_ALEN); 8124 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8125 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8126 mgmt.u.deauth.reason_code = host_to_le16(reason); 8127 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8128 IEEE80211_HDRLEN + 8129 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8130 0); 8131} 8132 8133 8134static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8135 int reason) 8136{ 8137 struct i802_bss *bss = priv; 8138 struct wpa_driver_nl80211_data *drv = bss->drv; 8139 struct ieee80211_mgmt mgmt; 8140 8141 if (drv->device_ap_sme) 8142 return wpa_driver_nl80211_sta_remove(bss, addr); 8143 8144 memset(&mgmt, 0, sizeof(mgmt)); 8145 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8146 WLAN_FC_STYPE_DISASSOC); 8147 memcpy(mgmt.da, addr, ETH_ALEN); 8148 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8149 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8150 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8151 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8152 IEEE80211_HDRLEN + 8153 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8154 0); 8155} 8156 8157#endif /* HOSTAPD || CONFIG_AP */ 8158 8159#ifdef HOSTAPD 8160 8161static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8162{ 8163 int i; 8164 int *old; 8165 8166 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8167 ifidx); 8168 for (i = 0; i < drv->num_if_indices; i++) { 8169 if (drv->if_indices[i] == 0) { 8170 drv->if_indices[i] = ifidx; 8171 return; 8172 } 8173 } 8174 8175 if (drv->if_indices != drv->default_if_indices) 8176 old = drv->if_indices; 8177 else 8178 old = NULL; 8179 8180 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8181 sizeof(int)); 8182 if (!drv->if_indices) { 8183 if (!old) 8184 drv->if_indices = drv->default_if_indices; 8185 else 8186 drv->if_indices = old; 8187 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8188 "interfaces"); 8189 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8190 return; 8191 } else if (!old) 8192 os_memcpy(drv->if_indices, drv->default_if_indices, 8193 sizeof(drv->default_if_indices)); 8194 drv->if_indices[drv->num_if_indices] = ifidx; 8195 drv->num_if_indices++; 8196} 8197 8198 8199static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8200{ 8201 int i; 8202 8203 for (i = 0; i < drv->num_if_indices; i++) { 8204 if (drv->if_indices[i] == ifidx) { 8205 drv->if_indices[i] = 0; 8206 break; 8207 } 8208 } 8209} 8210 8211 8212static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8213{ 8214 int i; 8215 8216 for (i = 0; i < drv->num_if_indices; i++) 8217 if (drv->if_indices[i] == ifidx) 8218 return 1; 8219 8220 return 0; 8221} 8222 8223 8224static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8225 const char *bridge_ifname) 8226{ 8227 struct i802_bss *bss = priv; 8228 struct wpa_driver_nl80211_data *drv = bss->drv; 8229 char name[IFNAMSIZ + 1]; 8230 8231 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8232 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8233 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8234 if (val) { 8235 if (!if_nametoindex(name)) { 8236 if (nl80211_create_iface(drv, name, 8237 NL80211_IFTYPE_AP_VLAN, 8238 bss->addr, 1) < 0) 8239 return -1; 8240 if (bridge_ifname && 8241 linux_br_add_if(drv->global->ioctl_sock, 8242 bridge_ifname, name) < 0) 8243 return -1; 8244 } 8245 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8246 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8247 "interface %s up", name); 8248 } 8249 return i802_set_sta_vlan(priv, addr, name, 0); 8250 } else { 8251 if (bridge_ifname) 8252 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8253 name); 8254 8255 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8256 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8257 name); 8258 } 8259} 8260 8261 8262static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8263{ 8264 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8265 struct sockaddr_ll lladdr; 8266 unsigned char buf[3000]; 8267 int len; 8268 socklen_t fromlen = sizeof(lladdr); 8269 8270 len = recvfrom(sock, buf, sizeof(buf), 0, 8271 (struct sockaddr *)&lladdr, &fromlen); 8272 if (len < 0) { 8273 perror("recv"); 8274 return; 8275 } 8276 8277 if (have_ifidx(drv, lladdr.sll_ifindex)) 8278 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8279} 8280 8281 8282static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8283 struct i802_bss *bss, 8284 const char *brname, const char *ifname) 8285{ 8286 int ifindex; 8287 char in_br[IFNAMSIZ]; 8288 8289 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8290 ifindex = if_nametoindex(brname); 8291 if (ifindex == 0) { 8292 /* 8293 * Bridge was configured, but the bridge device does 8294 * not exist. Try to add it now. 8295 */ 8296 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8297 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8298 "bridge interface %s: %s", 8299 brname, strerror(errno)); 8300 return -1; 8301 } 8302 bss->added_bridge = 1; 8303 add_ifidx(drv, if_nametoindex(brname)); 8304 } 8305 8306 if (linux_br_get(in_br, ifname) == 0) { 8307 if (os_strcmp(in_br, brname) == 0) 8308 return 0; /* already in the bridge */ 8309 8310 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8311 "bridge %s", ifname, in_br); 8312 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8313 0) { 8314 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8315 "remove interface %s from bridge " 8316 "%s: %s", 8317 ifname, brname, strerror(errno)); 8318 return -1; 8319 } 8320 } 8321 8322 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8323 ifname, brname); 8324 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8325 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8326 "into bridge %s: %s", 8327 ifname, brname, strerror(errno)); 8328 return -1; 8329 } 8330 bss->added_if_into_bridge = 1; 8331 8332 return 0; 8333} 8334 8335 8336static void *i802_init(struct hostapd_data *hapd, 8337 struct wpa_init_params *params) 8338{ 8339 struct wpa_driver_nl80211_data *drv; 8340 struct i802_bss *bss; 8341 size_t i; 8342 char brname[IFNAMSIZ]; 8343 int ifindex, br_ifindex; 8344 int br_added = 0; 8345 8346 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8347 params->global_priv); 8348 if (bss == NULL) 8349 return NULL; 8350 8351 drv = bss->drv; 8352 drv->nlmode = NL80211_IFTYPE_AP; 8353 drv->eapol_sock = -1; 8354 8355 if (linux_br_get(brname, params->ifname) == 0) { 8356 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8357 params->ifname, brname); 8358 br_ifindex = if_nametoindex(brname); 8359 } else { 8360 brname[0] = '\0'; 8361 br_ifindex = 0; 8362 } 8363 8364 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8365 drv->if_indices = drv->default_if_indices; 8366 for (i = 0; i < params->num_bridge; i++) { 8367 if (params->bridge[i]) { 8368 ifindex = if_nametoindex(params->bridge[i]); 8369 if (ifindex) 8370 add_ifidx(drv, ifindex); 8371 if (ifindex == br_ifindex) 8372 br_added = 1; 8373 } 8374 } 8375 if (!br_added && br_ifindex && 8376 (params->num_bridge == 0 || !params->bridge[0])) 8377 add_ifidx(drv, br_ifindex); 8378 8379 /* start listening for EAPOL on the default AP interface */ 8380 add_ifidx(drv, drv->ifindex); 8381 8382 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8383 goto failed; 8384 8385 if (params->bssid) { 8386 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8387 params->bssid)) 8388 goto failed; 8389 } 8390 8391 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8392 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8393 "into AP mode", bss->ifname); 8394 goto failed; 8395 } 8396 8397 if (params->num_bridge && params->bridge[0] && 8398 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8399 goto failed; 8400 8401 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8402 goto failed; 8403 8404 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8405 if (drv->eapol_sock < 0) { 8406 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8407 goto failed; 8408 } 8409 8410 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8411 { 8412 printf("Could not register read socket for eapol\n"); 8413 goto failed; 8414 } 8415 8416 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8417 params->own_addr)) 8418 goto failed; 8419 8420 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8421 8422 return bss; 8423 8424failed: 8425 wpa_driver_nl80211_deinit(bss); 8426 return NULL; 8427} 8428 8429 8430static void i802_deinit(void *priv) 8431{ 8432 struct i802_bss *bss = priv; 8433 wpa_driver_nl80211_deinit(bss); 8434} 8435 8436#endif /* HOSTAPD */ 8437 8438 8439static enum nl80211_iftype wpa_driver_nl80211_if_type( 8440 enum wpa_driver_if_type type) 8441{ 8442 switch (type) { 8443 case WPA_IF_STATION: 8444 return NL80211_IFTYPE_STATION; 8445 case WPA_IF_P2P_CLIENT: 8446 case WPA_IF_P2P_GROUP: 8447 return NL80211_IFTYPE_P2P_CLIENT; 8448 case WPA_IF_AP_VLAN: 8449 return NL80211_IFTYPE_AP_VLAN; 8450 case WPA_IF_AP_BSS: 8451 return NL80211_IFTYPE_AP; 8452 case WPA_IF_P2P_GO: 8453 return NL80211_IFTYPE_P2P_GO; 8454 } 8455 return -1; 8456} 8457 8458 8459#ifdef CONFIG_P2P 8460 8461static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8462{ 8463 struct wpa_driver_nl80211_data *drv; 8464 dl_list_for_each(drv, &global->interfaces, 8465 struct wpa_driver_nl80211_data, list) { 8466 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8467 return 1; 8468 } 8469 return 0; 8470} 8471 8472 8473static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8474 u8 *new_addr) 8475{ 8476 unsigned int idx; 8477 8478 if (!drv->global) 8479 return -1; 8480 8481 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8482 for (idx = 0; idx < 64; idx++) { 8483 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8484 new_addr[0] ^= idx << 2; 8485 if (!nl80211_addr_in_use(drv->global, new_addr)) 8486 break; 8487 } 8488 if (idx == 64) 8489 return -1; 8490 8491 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8492 MACSTR, MAC2STR(new_addr)); 8493 8494 return 0; 8495} 8496 8497#endif /* CONFIG_P2P */ 8498 8499 8500static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 8501 const char *ifname, const u8 *addr, 8502 void *bss_ctx, void **drv_priv, 8503 char *force_ifname, u8 *if_addr, 8504 const char *bridge) 8505{ 8506 struct i802_bss *bss = priv; 8507 struct wpa_driver_nl80211_data *drv = bss->drv; 8508 int ifidx; 8509#ifdef HOSTAPD 8510 struct i802_bss *new_bss = NULL; 8511 8512 if (type == WPA_IF_AP_BSS) { 8513 new_bss = os_zalloc(sizeof(*new_bss)); 8514 if (new_bss == NULL) 8515 return -1; 8516 } 8517#endif /* HOSTAPD */ 8518 8519 if (addr) 8520 os_memcpy(if_addr, addr, ETH_ALEN); 8521 ifidx = nl80211_create_iface(drv, ifname, 8522 wpa_driver_nl80211_if_type(type), addr, 8523 0); 8524 if (ifidx < 0) { 8525#ifdef HOSTAPD 8526 os_free(new_bss); 8527#endif /* HOSTAPD */ 8528 return -1; 8529 } 8530 8531 if (!addr && 8532 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8533 if_addr) < 0) { 8534 nl80211_remove_iface(drv, ifidx); 8535 return -1; 8536 } 8537 8538#ifdef CONFIG_P2P 8539 if (!addr && 8540 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 8541 type == WPA_IF_P2P_GO)) { 8542 /* Enforce unique P2P Interface Address */ 8543 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN]; 8544 8545 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8546 own_addr) < 0 || 8547 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 8548 new_addr) < 0) { 8549 nl80211_remove_iface(drv, ifidx); 8550 return -1; 8551 } 8552 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) { 8553 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 8554 "for P2P group interface"); 8555 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 8556 nl80211_remove_iface(drv, ifidx); 8557 return -1; 8558 } 8559 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 8560 new_addr) < 0) { 8561 nl80211_remove_iface(drv, ifidx); 8562 return -1; 8563 } 8564 } 8565 os_memcpy(if_addr, new_addr, ETH_ALEN); 8566 } 8567#endif /* CONFIG_P2P */ 8568 8569#ifdef HOSTAPD 8570 if (bridge && 8571 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 8572 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 8573 "interface %s to a bridge %s", ifname, bridge); 8574 nl80211_remove_iface(drv, ifidx); 8575 os_free(new_bss); 8576 return -1; 8577 } 8578 8579 if (type == WPA_IF_AP_BSS) { 8580 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 8581 { 8582 nl80211_remove_iface(drv, ifidx); 8583 os_free(new_bss); 8584 return -1; 8585 } 8586 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 8587 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 8588 new_bss->ifindex = ifidx; 8589 new_bss->drv = drv; 8590 new_bss->next = drv->first_bss.next; 8591 new_bss->freq = drv->first_bss.freq; 8592 new_bss->ctx = bss_ctx; 8593 drv->first_bss.next = new_bss; 8594 if (drv_priv) 8595 *drv_priv = new_bss; 8596 nl80211_init_bss(new_bss); 8597 8598 /* Subscribe management frames for this WPA_IF_AP_BSS */ 8599 if (nl80211_setup_ap(new_bss)) 8600 return -1; 8601 } 8602#endif /* HOSTAPD */ 8603 8604 if (drv->global) 8605 drv->global->if_add_ifindex = ifidx; 8606 8607 return 0; 8608} 8609 8610 8611static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 8612 enum wpa_driver_if_type type, 8613 const char *ifname) 8614{ 8615 struct wpa_driver_nl80211_data *drv = bss->drv; 8616 int ifindex = if_nametoindex(ifname); 8617 8618 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 8619 __func__, type, ifname, ifindex); 8620 if (ifindex <= 0) 8621 return -1; 8622 8623 nl80211_remove_iface(drv, ifindex); 8624 8625#ifdef HOSTAPD 8626 if (type != WPA_IF_AP_BSS) 8627 return 0; 8628 8629 if (bss->added_if_into_bridge) { 8630 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 8631 bss->ifname) < 0) 8632 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8633 "interface %s from bridge %s: %s", 8634 bss->ifname, bss->brname, strerror(errno)); 8635 } 8636 if (bss->added_bridge) { 8637 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 8638 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8639 "bridge %s: %s", 8640 bss->brname, strerror(errno)); 8641 } 8642 8643 if (bss != &drv->first_bss) { 8644 struct i802_bss *tbss; 8645 8646 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 8647 if (tbss->next == bss) { 8648 tbss->next = bss->next; 8649 /* Unsubscribe management frames */ 8650 nl80211_teardown_ap(bss); 8651 nl80211_destroy_bss(bss); 8652 os_free(bss); 8653 bss = NULL; 8654 break; 8655 } 8656 } 8657 if (bss) 8658 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 8659 "BSS %p in the list", __func__, bss); 8660 } 8661#endif /* HOSTAPD */ 8662 8663 return 0; 8664} 8665 8666 8667static int cookie_handler(struct nl_msg *msg, void *arg) 8668{ 8669 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8670 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8671 u64 *cookie = arg; 8672 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8673 genlmsg_attrlen(gnlh, 0), NULL); 8674 if (tb[NL80211_ATTR_COOKIE]) 8675 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 8676 return NL_SKIP; 8677} 8678 8679 8680static int nl80211_send_frame_cmd(struct i802_bss *bss, 8681 unsigned int freq, unsigned int wait, 8682 const u8 *buf, size_t buf_len, 8683 u64 *cookie_out, int no_cck, int no_ack, 8684 int offchanok) 8685{ 8686 struct wpa_driver_nl80211_data *drv = bss->drv; 8687 struct nl_msg *msg; 8688 u64 cookie; 8689 int ret = -1; 8690 8691 msg = nlmsg_alloc(); 8692 if (!msg) 8693 return -1; 8694 8695 wpa_printf(MSG_DEBUG, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 8696 "no_ack=%d offchanok=%d", 8697 freq, wait, no_cck, no_ack, offchanok); 8698 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 8699 8700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 8701 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8702 if (wait) 8703 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 8704 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 8705 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 8706 if (no_cck) 8707 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 8708 if (no_ack) 8709 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 8710 8711 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 8712 8713 cookie = 0; 8714 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8715 msg = NULL; 8716 if (ret) { 8717 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 8718 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 8719 freq, wait); 8720 goto nla_put_failure; 8721 } 8722 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; " 8723 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 8724 (long long unsigned int) cookie); 8725 8726 if (cookie_out) 8727 *cookie_out = no_ack ? (u64) -1 : cookie; 8728 8729nla_put_failure: 8730 nlmsg_free(msg); 8731 return ret; 8732} 8733 8734 8735static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 8736 unsigned int freq, 8737 unsigned int wait_time, 8738 const u8 *dst, const u8 *src, 8739 const u8 *bssid, 8740 const u8 *data, size_t data_len, 8741 int no_cck) 8742{ 8743 struct wpa_driver_nl80211_data *drv = bss->drv; 8744 int ret = -1; 8745 u8 *buf; 8746 struct ieee80211_hdr *hdr; 8747 8748 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 8749 "freq=%u MHz wait=%d ms no_cck=%d)", 8750 drv->ifindex, freq, wait_time, no_cck); 8751 8752 buf = os_zalloc(24 + data_len); 8753 if (buf == NULL) 8754 return ret; 8755 os_memcpy(buf + 24, data, data_len); 8756 hdr = (struct ieee80211_hdr *) buf; 8757 hdr->frame_control = 8758 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 8759 os_memcpy(hdr->addr1, dst, ETH_ALEN); 8760 os_memcpy(hdr->addr2, src, ETH_ALEN); 8761 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 8762 8763 if (is_ap_interface(drv->nlmode)) 8764 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 8765 0, freq, no_cck, 1, 8766 wait_time); 8767 else 8768 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 8769 24 + data_len, 8770 &drv->send_action_cookie, 8771 no_cck, 0, 1); 8772 8773 os_free(buf); 8774 return ret; 8775} 8776 8777 8778static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 8779{ 8780 struct i802_bss *bss = priv; 8781 struct wpa_driver_nl80211_data *drv = bss->drv; 8782 struct nl_msg *msg; 8783 int ret; 8784 8785 msg = nlmsg_alloc(); 8786 if (!msg) 8787 return; 8788 8789 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 8790 (long long unsigned int) drv->send_action_cookie); 8791 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 8792 8793 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8794 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 8795 8796 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8797 msg = NULL; 8798 if (ret) 8799 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 8800 "(%s)", ret, strerror(-ret)); 8801 8802 nla_put_failure: 8803 nlmsg_free(msg); 8804} 8805 8806 8807static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 8808 unsigned int duration) 8809{ 8810 struct i802_bss *bss = priv; 8811 struct wpa_driver_nl80211_data *drv = bss->drv; 8812 struct nl_msg *msg; 8813 int ret; 8814 u64 cookie; 8815 8816 msg = nlmsg_alloc(); 8817 if (!msg) 8818 return -1; 8819 8820 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 8821 8822 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8823 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8824 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 8825 8826 cookie = 0; 8827 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8828 msg = NULL; 8829 if (ret == 0) { 8830 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 8831 "0x%llx for freq=%u MHz duration=%u", 8832 (long long unsigned int) cookie, freq, duration); 8833 drv->remain_on_chan_cookie = cookie; 8834 drv->pending_remain_on_chan = 1; 8835 return 0; 8836 } 8837 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 8838 "(freq=%d duration=%u): %d (%s)", 8839 freq, duration, ret, strerror(-ret)); 8840nla_put_failure: 8841 nlmsg_free(msg); 8842 return -1; 8843} 8844 8845 8846static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 8847{ 8848 struct i802_bss *bss = priv; 8849 struct wpa_driver_nl80211_data *drv = bss->drv; 8850 struct nl_msg *msg; 8851 int ret; 8852 8853 if (!drv->pending_remain_on_chan) { 8854 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 8855 "to cancel"); 8856 return -1; 8857 } 8858 8859 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 8860 "0x%llx", 8861 (long long unsigned int) drv->remain_on_chan_cookie); 8862 8863 msg = nlmsg_alloc(); 8864 if (!msg) 8865 return -1; 8866 8867 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 8868 8869 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8870 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 8871 8872 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8873 msg = NULL; 8874 if (ret == 0) 8875 return 0; 8876 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 8877 "%d (%s)", ret, strerror(-ret)); 8878nla_put_failure: 8879 nlmsg_free(msg); 8880 return -1; 8881} 8882 8883 8884static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 8885{ 8886 struct wpa_driver_nl80211_data *drv = bss->drv; 8887 8888 if (!report) { 8889 if (bss->nl_preq && drv->device_ap_sme && 8890 is_ap_interface(drv->nlmode)) { 8891 /* 8892 * Do not disable Probe Request reporting that was 8893 * enabled in nl80211_setup_ap(). 8894 */ 8895 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 8896 "Probe Request reporting nl_preq=%p while " 8897 "in AP mode", bss->nl_preq); 8898 } else if (bss->nl_preq) { 8899 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 8900 "reporting nl_preq=%p", bss->nl_preq); 8901 eloop_unregister_read_sock( 8902 nl_socket_get_fd(bss->nl_preq)); 8903 nl_destroy_handles(&bss->nl_preq); 8904 } 8905 return 0; 8906 } 8907 8908 if (bss->nl_preq) { 8909 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 8910 "already on! nl_preq=%p", bss->nl_preq); 8911 return 0; 8912 } 8913 8914 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 8915 if (bss->nl_preq == NULL) 8916 return -1; 8917 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 8918 "reporting nl_preq=%p", bss->nl_preq); 8919 8920 if (nl80211_register_frame(bss, bss->nl_preq, 8921 (WLAN_FC_TYPE_MGMT << 2) | 8922 (WLAN_FC_STYPE_PROBE_REQ << 4), 8923 NULL, 0) < 0) 8924 goto out_err; 8925 8926 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 8927 wpa_driver_nl80211_event_receive, bss->nl_cb, 8928 bss->nl_preq); 8929 8930 return 0; 8931 8932 out_err: 8933 nl_destroy_handles(&bss->nl_preq); 8934 return -1; 8935} 8936 8937 8938static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 8939 int ifindex, int disabled) 8940{ 8941 struct nl_msg *msg; 8942 struct nlattr *bands, *band; 8943 int ret; 8944 8945 msg = nlmsg_alloc(); 8946 if (!msg) 8947 return -1; 8948 8949 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 8950 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 8951 8952 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 8953 if (!bands) 8954 goto nla_put_failure; 8955 8956 /* 8957 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 8958 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 8959 * rates. All 5 GHz rates are left enabled. 8960 */ 8961 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 8962 if (!band) 8963 goto nla_put_failure; 8964 if (disabled) { 8965 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 8966 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 8967 } 8968 nla_nest_end(msg, band); 8969 8970 nla_nest_end(msg, bands); 8971 8972 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8973 msg = NULL; 8974 if (ret) { 8975 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 8976 "(%s)", ret, strerror(-ret)); 8977 } else 8978 drv->disabled_11b_rates = disabled; 8979 8980 return ret; 8981 8982nla_put_failure: 8983 nlmsg_free(msg); 8984 return -1; 8985} 8986 8987 8988static int wpa_driver_nl80211_deinit_ap(void *priv) 8989{ 8990 struct i802_bss *bss = priv; 8991 struct wpa_driver_nl80211_data *drv = bss->drv; 8992 if (!is_ap_interface(drv->nlmode)) 8993 return -1; 8994 wpa_driver_nl80211_del_beacon(drv); 8995 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 8996} 8997 8998 8999static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9000{ 9001 struct i802_bss *bss = priv; 9002 struct wpa_driver_nl80211_data *drv = bss->drv; 9003 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9004 return -1; 9005 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9006} 9007 9008 9009static void wpa_driver_nl80211_resume(void *priv) 9010{ 9011 struct i802_bss *bss = priv; 9012 struct wpa_driver_nl80211_data *drv = bss->drv; 9013 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 9014 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " 9015 "resume event"); 9016 } 9017} 9018 9019 9020static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9021 const u8 *ies, size_t ies_len) 9022{ 9023 struct i802_bss *bss = priv; 9024 struct wpa_driver_nl80211_data *drv = bss->drv; 9025 int ret; 9026 u8 *data, *pos; 9027 size_t data_len; 9028 const u8 *own_addr = bss->addr; 9029 9030 if (action != 1) { 9031 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9032 "action %d", action); 9033 return -1; 9034 } 9035 9036 /* 9037 * Action frame payload: 9038 * Category[1] = 6 (Fast BSS Transition) 9039 * Action[1] = 1 (Fast BSS Transition Request) 9040 * STA Address 9041 * Target AP Address 9042 * FT IEs 9043 */ 9044 9045 data_len = 2 + 2 * ETH_ALEN + ies_len; 9046 data = os_malloc(data_len); 9047 if (data == NULL) 9048 return -1; 9049 pos = data; 9050 *pos++ = 0x06; /* FT Action category */ 9051 *pos++ = action; 9052 os_memcpy(pos, own_addr, ETH_ALEN); 9053 pos += ETH_ALEN; 9054 os_memcpy(pos, target_ap, ETH_ALEN); 9055 pos += ETH_ALEN; 9056 os_memcpy(pos, ies, ies_len); 9057 9058 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9059 drv->bssid, own_addr, drv->bssid, 9060 data, data_len, 0); 9061 os_free(data); 9062 9063 return ret; 9064} 9065 9066 9067static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9068{ 9069 struct i802_bss *bss = priv; 9070 struct wpa_driver_nl80211_data *drv = bss->drv; 9071 struct nl_msg *msg, *cqm = NULL; 9072 int ret = -1; 9073 9074 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9075 "hysteresis=%d", threshold, hysteresis); 9076 9077 msg = nlmsg_alloc(); 9078 if (!msg) 9079 return -1; 9080 9081 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9082 9083 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9084 9085 cqm = nlmsg_alloc(); 9086 if (cqm == NULL) 9087 goto nla_put_failure; 9088 9089 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9090 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9091 if (nla_put_nested(msg, NL80211_ATTR_CQM, cqm) < 0) 9092 goto nla_put_failure; 9093 9094 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9095 msg = NULL; 9096 9097nla_put_failure: 9098 nlmsg_free(cqm); 9099 nlmsg_free(msg); 9100 return ret; 9101} 9102 9103 9104static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9105{ 9106 struct i802_bss *bss = priv; 9107 struct wpa_driver_nl80211_data *drv = bss->drv; 9108 int res; 9109 9110 os_memset(si, 0, sizeof(*si)); 9111 res = nl80211_get_link_signal(drv, si); 9112 if (res != 0) 9113 return res; 9114 9115 return nl80211_get_link_noise(drv, si); 9116} 9117 9118 9119static int wpa_driver_nl80211_shared_freq(void *priv) 9120{ 9121 struct i802_bss *bss = priv; 9122 struct wpa_driver_nl80211_data *drv = bss->drv; 9123 struct wpa_driver_nl80211_data *driver; 9124 int freq = 0; 9125 9126 /* 9127 * If the same PHY is in connected state with some other interface, 9128 * then retrieve the assoc freq. 9129 */ 9130 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9131 drv->phyname); 9132 9133 dl_list_for_each(driver, &drv->global->interfaces, 9134 struct wpa_driver_nl80211_data, list) { 9135 if (drv == driver || 9136 os_strcmp(drv->phyname, driver->phyname) != 0 || 9137#ifdef ANDROID_P2P 9138 (!driver->associated && !is_ap_interface(driver->nlmode))) 9139#else 9140 !driver->associated) 9141#endif 9142 continue; 9143 9144 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9145 MACSTR, 9146 driver->phyname, driver->first_bss.ifname, 9147 MAC2STR(driver->first_bss.addr)); 9148 if (is_ap_interface(driver->nlmode)) 9149 freq = driver->first_bss.freq; 9150 else 9151 freq = nl80211_get_assoc_freq(driver); 9152 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9153 drv->phyname, freq); 9154 } 9155 9156 if (!freq) 9157 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9158 "PHY (%s) in associated state", drv->phyname); 9159 9160 return freq; 9161} 9162 9163 9164static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9165 int encrypt) 9166{ 9167 struct i802_bss *bss = priv; 9168 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9169 0, 0, 0, 0); 9170} 9171 9172 9173static int nl80211_set_param(void *priv, const char *param) 9174{ 9175 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9176 if (param == NULL) 9177 return 0; 9178 9179#ifdef CONFIG_P2P 9180 if (os_strstr(param, "use_p2p_group_interface=1")) { 9181 struct i802_bss *bss = priv; 9182 struct wpa_driver_nl80211_data *drv = bss->drv; 9183 9184 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9185 "interface"); 9186 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9187 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9188 } 9189#ifdef ANDROID_P2P 9190 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9191 struct i802_bss *bss = priv; 9192 struct wpa_driver_nl80211_data *drv = bss->drv; 9193 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9194 "concurrency"); 9195 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 9196 } 9197#endif 9198#endif /* CONFIG_P2P */ 9199 9200 return 0; 9201} 9202 9203 9204static void * nl80211_global_init(void) 9205{ 9206 struct nl80211_global *global; 9207 struct netlink_config *cfg; 9208 9209 global = os_zalloc(sizeof(*global)); 9210 if (global == NULL) 9211 return NULL; 9212 global->ioctl_sock = -1; 9213 dl_list_init(&global->interfaces); 9214 global->if_add_ifindex = -1; 9215 9216 cfg = os_zalloc(sizeof(*cfg)); 9217 if (cfg == NULL) 9218 goto err; 9219 9220 cfg->ctx = global; 9221 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9222 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9223 global->netlink = netlink_init(cfg); 9224 if (global->netlink == NULL) { 9225 os_free(cfg); 9226 goto err; 9227 } 9228 9229 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9230 goto err; 9231 9232 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9233 if (global->ioctl_sock < 0) { 9234 perror("socket(PF_INET,SOCK_DGRAM)"); 9235 goto err; 9236 } 9237 9238 return global; 9239 9240err: 9241 nl80211_global_deinit(global); 9242 return NULL; 9243} 9244 9245 9246static void nl80211_global_deinit(void *priv) 9247{ 9248 struct nl80211_global *global = priv; 9249 if (global == NULL) 9250 return; 9251 if (!dl_list_empty(&global->interfaces)) { 9252 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9253 "nl80211_global_deinit", 9254 dl_list_len(&global->interfaces)); 9255 } 9256 9257 if (global->netlink) 9258 netlink_deinit(global->netlink); 9259 9260 nl_destroy_handles(&global->nl); 9261 9262 if (global->nl_event) { 9263 eloop_unregister_read_sock( 9264 nl_socket_get_fd(global->nl_event)); 9265 nl_destroy_handles(&global->nl_event); 9266 } 9267 9268 nl_cb_put(global->nl_cb); 9269 9270 if (global->ioctl_sock >= 0) 9271 close(global->ioctl_sock); 9272 9273 os_free(global); 9274} 9275 9276 9277static const char * nl80211_get_radio_name(void *priv) 9278{ 9279 struct i802_bss *bss = priv; 9280 struct wpa_driver_nl80211_data *drv = bss->drv; 9281 return drv->phyname; 9282} 9283 9284 9285static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9286 const u8 *pmkid) 9287{ 9288 struct nl_msg *msg; 9289 9290 msg = nlmsg_alloc(); 9291 if (!msg) 9292 return -ENOMEM; 9293 9294 nl80211_cmd(bss->drv, msg, 0, cmd); 9295 9296 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9297 if (pmkid) 9298 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9299 if (bssid) 9300 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9301 9302 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9303 nla_put_failure: 9304 nlmsg_free(msg); 9305 return -ENOBUFS; 9306} 9307 9308 9309static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9310{ 9311 struct i802_bss *bss = priv; 9312 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9313 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9314} 9315 9316 9317static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9318{ 9319 struct i802_bss *bss = priv; 9320 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9321 MAC2STR(bssid)); 9322 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9323} 9324 9325 9326static int nl80211_flush_pmkid(void *priv) 9327{ 9328 struct i802_bss *bss = priv; 9329 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9330 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9331} 9332 9333 9334static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9335 const u8 *replay_ctr) 9336{ 9337 struct i802_bss *bss = priv; 9338 struct wpa_driver_nl80211_data *drv = bss->drv; 9339 struct nlattr *replay_nested; 9340 struct nl_msg *msg; 9341 9342 msg = nlmsg_alloc(); 9343 if (!msg) 9344 return; 9345 9346 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 9347 9348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9349 9350 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 9351 if (!replay_nested) 9352 goto nla_put_failure; 9353 9354 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 9355 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 9356 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 9357 replay_ctr); 9358 9359 nla_nest_end(msg, replay_nested); 9360 9361 send_and_recv_msgs(drv, msg, NULL, NULL); 9362 return; 9363 nla_put_failure: 9364 nlmsg_free(msg); 9365} 9366 9367 9368static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 9369 const u8 *addr, int qos) 9370{ 9371 /* send data frame to poll STA and check whether 9372 * this frame is ACKed */ 9373 struct { 9374 struct ieee80211_hdr hdr; 9375 u16 qos_ctl; 9376 } STRUCT_PACKED nulldata; 9377 size_t size; 9378 9379 /* Send data frame to poll STA and check whether this frame is ACKed */ 9380 9381 os_memset(&nulldata, 0, sizeof(nulldata)); 9382 9383 if (qos) { 9384 nulldata.hdr.frame_control = 9385 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9386 WLAN_FC_STYPE_QOS_NULL); 9387 size = sizeof(nulldata); 9388 } else { 9389 nulldata.hdr.frame_control = 9390 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9391 WLAN_FC_STYPE_NULLFUNC); 9392 size = sizeof(struct ieee80211_hdr); 9393 } 9394 9395 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 9396 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 9397 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 9398 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 9399 9400 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 9401 0, 0) < 0) 9402 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 9403 "send poll frame"); 9404} 9405 9406static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 9407 int qos) 9408{ 9409 struct i802_bss *bss = priv; 9410 struct wpa_driver_nl80211_data *drv = bss->drv; 9411 struct nl_msg *msg; 9412 9413 if (!drv->poll_command_supported) { 9414 nl80211_send_null_frame(bss, own_addr, addr, qos); 9415 return; 9416 } 9417 9418 msg = nlmsg_alloc(); 9419 if (!msg) 9420 return; 9421 9422 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 9423 9424 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9425 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9426 9427 send_and_recv_msgs(drv, msg, NULL, NULL); 9428 return; 9429 nla_put_failure: 9430 nlmsg_free(msg); 9431} 9432 9433 9434static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 9435{ 9436 struct nl_msg *msg; 9437 9438 msg = nlmsg_alloc(); 9439 if (!msg) 9440 return -ENOMEM; 9441 9442 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 9443 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9444 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 9445 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 9446 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9447nla_put_failure: 9448 nlmsg_free(msg); 9449 return -ENOBUFS; 9450} 9451 9452 9453static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 9454 int ctwindow) 9455{ 9456 struct i802_bss *bss = priv; 9457 9458 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 9459 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 9460 9461 if (opp_ps != -1 || ctwindow != -1) 9462#ifdef ANDROID_P2P 9463 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 9464#else 9465 return -1; /* Not yet supported */ 9466#endif 9467 9468 if (legacy_ps == -1) 9469 return 0; 9470 if (legacy_ps != 0 && legacy_ps != 1) 9471 return -1; /* Not yet supported */ 9472 9473 return nl80211_set_power_save(bss, legacy_ps); 9474} 9475 9476 9477#ifdef CONFIG_TDLS 9478 9479static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 9480 u8 dialog_token, u16 status_code, 9481 const u8 *buf, size_t len) 9482{ 9483 struct i802_bss *bss = priv; 9484 struct wpa_driver_nl80211_data *drv = bss->drv; 9485 struct nl_msg *msg; 9486 9487 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9488 return -EOPNOTSUPP; 9489 9490 if (!dst) 9491 return -EINVAL; 9492 9493 msg = nlmsg_alloc(); 9494 if (!msg) 9495 return -ENOMEM; 9496 9497 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 9498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9499 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 9500 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 9501 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 9502 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 9503 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 9504 9505 return send_and_recv_msgs(drv, msg, NULL, NULL); 9506 9507nla_put_failure: 9508 nlmsg_free(msg); 9509 return -ENOBUFS; 9510} 9511 9512 9513static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 9514{ 9515 struct i802_bss *bss = priv; 9516 struct wpa_driver_nl80211_data *drv = bss->drv; 9517 struct nl_msg *msg; 9518 enum nl80211_tdls_operation nl80211_oper; 9519 9520 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9521 return -EOPNOTSUPP; 9522 9523 switch (oper) { 9524 case TDLS_DISCOVERY_REQ: 9525 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 9526 break; 9527 case TDLS_SETUP: 9528 nl80211_oper = NL80211_TDLS_SETUP; 9529 break; 9530 case TDLS_TEARDOWN: 9531 nl80211_oper = NL80211_TDLS_TEARDOWN; 9532 break; 9533 case TDLS_ENABLE_LINK: 9534 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 9535 break; 9536 case TDLS_DISABLE_LINK: 9537 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 9538 break; 9539 case TDLS_ENABLE: 9540 return 0; 9541 case TDLS_DISABLE: 9542 return 0; 9543 default: 9544 return -EINVAL; 9545 } 9546 9547 msg = nlmsg_alloc(); 9548 if (!msg) 9549 return -ENOMEM; 9550 9551 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 9552 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 9553 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9554 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 9555 9556 return send_and_recv_msgs(drv, msg, NULL, NULL); 9557 9558nla_put_failure: 9559 nlmsg_free(msg); 9560 return -ENOBUFS; 9561} 9562 9563#endif /* CONFIG TDLS */ 9564 9565 9566#ifdef ANDROID 9567 9568typedef struct android_wifi_priv_cmd { 9569 char *buf; 9570 int used_len; 9571 int total_len; 9572} android_wifi_priv_cmd; 9573 9574static int drv_errors = 0; 9575 9576static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 9577{ 9578 drv_errors++; 9579 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 9580 drv_errors = 0; 9581 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 9582 } 9583} 9584 9585 9586static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 9587{ 9588 struct wpa_driver_nl80211_data *drv = bss->drv; 9589 struct ifreq ifr; 9590 android_wifi_priv_cmd priv_cmd; 9591 char buf[MAX_DRV_CMD_SIZE]; 9592 int ret; 9593 9594 os_memset(&ifr, 0, sizeof(ifr)); 9595 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 9596 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9597 9598 os_memset(buf, 0, sizeof(buf)); 9599 os_strlcpy(buf, cmd, sizeof(buf)); 9600 9601 priv_cmd.buf = buf; 9602 priv_cmd.used_len = sizeof(buf); 9603 priv_cmd.total_len = sizeof(buf); 9604 ifr.ifr_data = &priv_cmd; 9605 9606 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9607 if (ret < 0) { 9608 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 9609 __func__); 9610 wpa_driver_send_hang_msg(drv); 9611 return ret; 9612 } 9613 9614 drv_errors = 0; 9615 return 0; 9616} 9617 9618 9619static int android_pno_start(struct i802_bss *bss, 9620 struct wpa_driver_scan_params *params) 9621{ 9622 struct wpa_driver_nl80211_data *drv = bss->drv; 9623 struct ifreq ifr; 9624 android_wifi_priv_cmd priv_cmd; 9625 int ret = 0, i = 0, bp; 9626 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 9627 9628 bp = WEXT_PNOSETUP_HEADER_SIZE; 9629 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 9630 buf[bp++] = WEXT_PNO_TLV_PREFIX; 9631 buf[bp++] = WEXT_PNO_TLV_VERSION; 9632 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 9633 buf[bp++] = WEXT_PNO_TLV_RESERVED; 9634 9635 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 9636 /* Check that there is enough space needed for 1 more SSID, the 9637 * other sections and null termination */ 9638 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 9639 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 9640 break; 9641 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 9642 params->ssids[i].ssid, 9643 params->ssids[i].ssid_len); 9644 buf[bp++] = WEXT_PNO_SSID_SECTION; 9645 buf[bp++] = params->ssids[i].ssid_len; 9646 os_memcpy(&buf[bp], params->ssids[i].ssid, 9647 params->ssids[i].ssid_len); 9648 bp += params->ssids[i].ssid_len; 9649 i++; 9650 } 9651 9652 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 9653 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 9654 WEXT_PNO_SCAN_INTERVAL); 9655 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 9656 9657 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 9658 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 9659 WEXT_PNO_REPEAT); 9660 bp += WEXT_PNO_REPEAT_LENGTH; 9661 9662 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 9663 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 9664 WEXT_PNO_MAX_REPEAT); 9665 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 9666 9667 memset(&ifr, 0, sizeof(ifr)); 9668 memset(&priv_cmd, 0, sizeof(priv_cmd)); 9669 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9670 9671 priv_cmd.buf = buf; 9672 priv_cmd.used_len = bp; 9673 priv_cmd.total_len = bp; 9674 ifr.ifr_data = &priv_cmd; 9675 9676 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9677 9678 if (ret < 0) { 9679 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 9680 ret); 9681 wpa_driver_send_hang_msg(drv); 9682 return ret; 9683 } 9684 9685 drv_errors = 0; 9686 9687 return android_priv_cmd(bss, "PNOFORCE 1"); 9688} 9689 9690 9691static int android_pno_stop(struct i802_bss *bss) 9692{ 9693 return android_priv_cmd(bss, "PNOFORCE 0"); 9694} 9695 9696#endif /* ANDROID */ 9697 9698 9699static int driver_nl80211_set_key(const char *ifname, void *priv, 9700 enum wpa_alg alg, const u8 *addr, 9701 int key_idx, int set_tx, 9702 const u8 *seq, size_t seq_len, 9703 const u8 *key, size_t key_len) 9704{ 9705 struct i802_bss *bss = priv; 9706 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 9707 set_tx, seq, seq_len, key, key_len); 9708} 9709 9710 9711static int driver_nl80211_scan2(void *priv, 9712 struct wpa_driver_scan_params *params) 9713{ 9714 struct i802_bss *bss = priv; 9715 return wpa_driver_nl80211_scan(bss, params); 9716} 9717 9718 9719static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 9720 int reason_code) 9721{ 9722 struct i802_bss *bss = priv; 9723 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 9724} 9725 9726 9727static int driver_nl80211_authenticate(void *priv, 9728 struct wpa_driver_auth_params *params) 9729{ 9730 struct i802_bss *bss = priv; 9731 return wpa_driver_nl80211_authenticate(bss, params); 9732} 9733 9734 9735static void driver_nl80211_deinit(void *priv) 9736{ 9737 struct i802_bss *bss = priv; 9738 wpa_driver_nl80211_deinit(bss); 9739} 9740 9741 9742static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 9743 const char *ifname) 9744{ 9745 struct i802_bss *bss = priv; 9746 return wpa_driver_nl80211_if_remove(bss, type, ifname); 9747} 9748 9749 9750static int driver_nl80211_send_mlme(void *priv, const u8 *data, 9751 size_t data_len, int noack) 9752{ 9753 struct i802_bss *bss = priv; 9754 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 9755 0, 0, 0, 0); 9756} 9757 9758 9759static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 9760{ 9761 struct i802_bss *bss = priv; 9762 return wpa_driver_nl80211_sta_remove(bss, addr); 9763} 9764 9765 9766#if defined(HOSTAPD) || defined(CONFIG_AP) 9767static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 9768 const char *ifname, int vlan_id) 9769{ 9770 struct i802_bss *bss = priv; 9771 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 9772} 9773#endif /* HOSTAPD || CONFIG_AP */ 9774 9775 9776static int driver_nl80211_read_sta_data(void *priv, 9777 struct hostap_sta_driver_data *data, 9778 const u8 *addr) 9779{ 9780 struct i802_bss *bss = priv; 9781 return i802_read_sta_data(bss, data, addr); 9782} 9783 9784 9785static int driver_nl80211_send_action(void *priv, unsigned int freq, 9786 unsigned int wait_time, 9787 const u8 *dst, const u8 *src, 9788 const u8 *bssid, 9789 const u8 *data, size_t data_len, 9790 int no_cck) 9791{ 9792 struct i802_bss *bss = priv; 9793 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 9794 bssid, data, data_len, no_cck); 9795} 9796 9797 9798static int driver_nl80211_probe_req_report(void *priv, int report) 9799{ 9800 struct i802_bss *bss = priv; 9801 return wpa_driver_nl80211_probe_req_report(bss, report); 9802} 9803 9804 9805static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 9806 const u8 *ies, size_t ies_len) 9807{ 9808 int ret; 9809 struct nl_msg *msg; 9810 struct i802_bss *bss = priv; 9811 struct wpa_driver_nl80211_data *drv = bss->drv; 9812 u16 mdid = WPA_GET_LE16(md); 9813 9814 msg = nlmsg_alloc(); 9815 if (!msg) 9816 return -ENOMEM; 9817 9818 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 9819 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 9820 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9821 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 9822 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 9823 9824 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9825 if (ret) { 9826 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 9827 "err=%d (%s)", ret, strerror(-ret)); 9828 } 9829 9830 return ret; 9831 9832nla_put_failure: 9833 nlmsg_free(msg); 9834 return -ENOBUFS; 9835} 9836 9837 9838const struct wpa_driver_ops wpa_driver_nl80211_ops = { 9839 .name = "nl80211", 9840 .desc = "Linux nl80211/cfg80211", 9841 .get_bssid = wpa_driver_nl80211_get_bssid, 9842 .get_ssid = wpa_driver_nl80211_get_ssid, 9843 .set_key = driver_nl80211_set_key, 9844 .scan2 = driver_nl80211_scan2, 9845 .sched_scan = wpa_driver_nl80211_sched_scan, 9846 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 9847 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 9848 .deauthenticate = driver_nl80211_deauthenticate, 9849 .authenticate = driver_nl80211_authenticate, 9850 .associate = wpa_driver_nl80211_associate, 9851 .global_init = nl80211_global_init, 9852 .global_deinit = nl80211_global_deinit, 9853 .init2 = wpa_driver_nl80211_init, 9854 .deinit = driver_nl80211_deinit, 9855 .get_capa = wpa_driver_nl80211_get_capa, 9856 .set_operstate = wpa_driver_nl80211_set_operstate, 9857 .set_supp_port = wpa_driver_nl80211_set_supp_port, 9858 .set_country = wpa_driver_nl80211_set_country, 9859 .set_ap = wpa_driver_nl80211_set_ap, 9860 .if_add = wpa_driver_nl80211_if_add, 9861 .if_remove = driver_nl80211_if_remove, 9862 .send_mlme = driver_nl80211_send_mlme, 9863 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 9864 .sta_add = wpa_driver_nl80211_sta_add, 9865 .sta_remove = driver_nl80211_sta_remove, 9866 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 9867 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 9868#ifdef HOSTAPD 9869 .hapd_init = i802_init, 9870 .hapd_deinit = i802_deinit, 9871 .set_wds_sta = i802_set_wds_sta, 9872#endif /* HOSTAPD */ 9873#if defined(HOSTAPD) || defined(CONFIG_AP) 9874 .get_seqnum = i802_get_seqnum, 9875 .flush = i802_flush, 9876 .get_inact_sec = i802_get_inact_sec, 9877 .sta_clear_stats = i802_sta_clear_stats, 9878 .set_rts = i802_set_rts, 9879 .set_frag = i802_set_frag, 9880 .set_tx_queue_params = i802_set_tx_queue_params, 9881 .set_sta_vlan = driver_nl80211_set_sta_vlan, 9882 .sta_deauth = i802_sta_deauth, 9883 .sta_disassoc = i802_sta_disassoc, 9884#endif /* HOSTAPD || CONFIG_AP */ 9885 .read_sta_data = driver_nl80211_read_sta_data, 9886 .set_freq = i802_set_freq, 9887 .send_action = driver_nl80211_send_action, 9888 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 9889 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 9890 .cancel_remain_on_channel = 9891 wpa_driver_nl80211_cancel_remain_on_channel, 9892 .probe_req_report = driver_nl80211_probe_req_report, 9893 .deinit_ap = wpa_driver_nl80211_deinit_ap, 9894 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 9895 .resume = wpa_driver_nl80211_resume, 9896 .send_ft_action = nl80211_send_ft_action, 9897 .signal_monitor = nl80211_signal_monitor, 9898 .signal_poll = nl80211_signal_poll, 9899 .send_frame = nl80211_send_frame, 9900 .shared_freq = wpa_driver_nl80211_shared_freq, 9901 .set_param = nl80211_set_param, 9902 .get_radio_name = nl80211_get_radio_name, 9903 .add_pmkid = nl80211_add_pmkid, 9904 .remove_pmkid = nl80211_remove_pmkid, 9905 .flush_pmkid = nl80211_flush_pmkid, 9906 .set_rekey_info = nl80211_set_rekey_info, 9907 .poll_client = nl80211_poll_client, 9908 .set_p2p_powersave = nl80211_set_p2p_powersave, 9909#ifdef CONFIG_TDLS 9910 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 9911 .tdls_oper = nl80211_tdls_oper, 9912#endif /* CONFIG_TDLS */ 9913 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 9914#ifdef ANDROID_P2P 9915 .set_noa = wpa_driver_set_p2p_noa, 9916 .get_noa = wpa_driver_get_p2p_noa, 9917 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 9918#endif 9919#ifdef ANDROID 9920 .driver_cmd = wpa_driver_nl80211_driver_cmd, 9921#endif 9922}; 9923