driver_nl80211.c revision 8bae4138a0356709720a96f3e50b4d734e532c12
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 auth_attempt_bssid[ETH_ALEN]; 229 u8 bssid[ETH_ALEN]; 230 u8 prev_bssid[ETH_ALEN]; 231 int associated; 232 u8 ssid[32]; 233 size_t ssid_len; 234 enum nl80211_iftype nlmode; 235 enum nl80211_iftype ap_scan_as_station; 236 unsigned int assoc_freq; 237 238 int monitor_sock; 239 int monitor_ifidx; 240 int monitor_refcount; 241 242 unsigned int disabled_11b_rates:1; 243 unsigned int pending_remain_on_chan:1; 244 unsigned int in_interface_list:1; 245 unsigned int device_ap_sme:1; 246 unsigned int poll_command_supported:1; 247 unsigned int data_tx_status:1; 248 unsigned int scan_for_auth:1; 249 unsigned int retry_auth:1; 250 unsigned int use_monitor:1; 251 unsigned int ignore_next_local_disconnect:1; 252 253 u64 remain_on_chan_cookie; 254 u64 send_action_cookie; 255 256 unsigned int last_mgmt_freq; 257 258 struct wpa_driver_scan_filter *filter_ssids; 259 size_t num_filter_ssids; 260 261 struct i802_bss first_bss; 262 263 int eapol_tx_sock; 264 265#ifdef HOSTAPD 266 int eapol_sock; /* socket for EAPOL frames */ 267 268 int default_if_indices[16]; 269 int *if_indices; 270 int num_if_indices; 271 272 int last_freq; 273 int last_freq_ht; 274#endif /* HOSTAPD */ 275 276 /* From failed authentication command */ 277 int auth_freq; 278 u8 auth_bssid_[ETH_ALEN]; 279 u8 auth_ssid[32]; 280 size_t auth_ssid_len; 281 int auth_alg; 282 u8 *auth_ie; 283 size_t auth_ie_len; 284 u8 auth_wep_key[4][16]; 285 size_t auth_wep_key_len[4]; 286 int auth_wep_tx_keyidx; 287 int auth_local_state_change; 288 int auth_p2p; 289}; 290 291 292static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 293static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, 294 void *timeout_ctx); 295static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 296 enum nl80211_iftype nlmode); 297static int 298wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); 299static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 300 const u8 *addr, int cmd, u16 reason_code, 301 int local_state_change); 302static void nl80211_remove_monitor_interface( 303 struct wpa_driver_nl80211_data *drv); 304static int nl80211_send_frame_cmd(struct i802_bss *bss, 305 unsigned int freq, unsigned int wait, 306 const u8 *buf, size_t buf_len, u64 *cookie, 307 int no_cck, int no_ack, int offchanok); 308static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 309 int report); 310#ifdef ANDROID 311static int android_pno_start(struct i802_bss *bss, 312 struct wpa_driver_scan_params *params); 313static int android_pno_stop(struct i802_bss *bss); 314#endif /* ANDROID */ 315#ifdef ANDROID_P2P 316int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 317int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 318int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 319int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 320 const struct wpabuf *proberesp, 321 const struct wpabuf *assocresp); 322 323#endif 324#ifdef HOSTAPD 325static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 326static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 327static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); 328static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 329 enum wpa_driver_if_type type, 330 const char *ifname); 331#else /* HOSTAPD */ 332static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 333{ 334} 335 336static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 337{ 338} 339 340static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 341{ 342 return 0; 343} 344#endif /* HOSTAPD */ 345#ifdef ANDROID 346extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 347 size_t buf_len); 348#endif 349 350static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 351 struct hostapd_freq_params *freq); 352static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 353 int ifindex, int disabled); 354 355static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); 356static int wpa_driver_nl80211_authenticate_retry( 357 struct wpa_driver_nl80211_data *drv); 358 359 360static int is_ap_interface(enum nl80211_iftype nlmode) 361{ 362 return (nlmode == NL80211_IFTYPE_AP || 363 nlmode == NL80211_IFTYPE_P2P_GO); 364} 365 366 367static int is_sta_interface(enum nl80211_iftype nlmode) 368{ 369 return (nlmode == NL80211_IFTYPE_STATION || 370 nlmode == NL80211_IFTYPE_P2P_CLIENT); 371} 372 373 374static int is_p2p_interface(enum nl80211_iftype nlmode) 375{ 376 return (nlmode == NL80211_IFTYPE_P2P_CLIENT || 377 nlmode == NL80211_IFTYPE_P2P_GO); 378} 379 380 381static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 382{ 383 if (drv->associated) 384 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 385 drv->associated = 0; 386 os_memset(drv->bssid, 0, ETH_ALEN); 387} 388 389 390struct nl80211_bss_info_arg { 391 struct wpa_driver_nl80211_data *drv; 392 struct wpa_scan_results *res; 393 unsigned int assoc_freq; 394 u8 assoc_bssid[ETH_ALEN]; 395}; 396 397static int bss_info_handler(struct nl_msg *msg, void *arg); 398 399 400/* nl80211 code */ 401static int ack_handler(struct nl_msg *msg, void *arg) 402{ 403 int *err = arg; 404 *err = 0; 405 return NL_STOP; 406} 407 408static int finish_handler(struct nl_msg *msg, void *arg) 409{ 410 int *ret = arg; 411 *ret = 0; 412 return NL_SKIP; 413} 414 415static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 416 void *arg) 417{ 418 int *ret = arg; 419 *ret = err->error; 420 return NL_SKIP; 421} 422 423 424static int no_seq_check(struct nl_msg *msg, void *arg) 425{ 426 return NL_OK; 427} 428 429 430static int send_and_recv(struct nl80211_global *global, 431 struct nl_handle *nl_handle, struct nl_msg *msg, 432 int (*valid_handler)(struct nl_msg *, void *), 433 void *valid_data) 434{ 435 struct nl_cb *cb; 436 int err = -ENOMEM; 437 438 cb = nl_cb_clone(global->nl_cb); 439 if (!cb) 440 goto out; 441 442 err = nl_send_auto_complete(nl_handle, msg); 443 if (err < 0) 444 goto out; 445 446 err = 1; 447 448 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 449 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 450 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 451 452 if (valid_handler) 453 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 454 valid_handler, valid_data); 455 456 while (err > 0) 457 nl_recvmsgs(nl_handle, cb); 458 out: 459 nl_cb_put(cb); 460 nlmsg_free(msg); 461 return err; 462} 463 464 465static int send_and_recv_msgs_global(struct nl80211_global *global, 466 struct nl_msg *msg, 467 int (*valid_handler)(struct nl_msg *, void *), 468 void *valid_data) 469{ 470 return send_and_recv(global, global->nl, msg, valid_handler, 471 valid_data); 472} 473 474 475#ifndef ANDROID 476static 477#endif 478int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 479 struct nl_msg *msg, 480 int (*valid_handler)(struct nl_msg *, void *), 481 void *valid_data) 482{ 483 return send_and_recv(drv->global, drv->global->nl, msg, 484 valid_handler, valid_data); 485} 486 487 488struct family_data { 489 const char *group; 490 int id; 491}; 492 493 494static int family_handler(struct nl_msg *msg, void *arg) 495{ 496 struct family_data *res = arg; 497 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 498 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 499 struct nlattr *mcgrp; 500 int i; 501 502 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 503 genlmsg_attrlen(gnlh, 0), NULL); 504 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 505 return NL_SKIP; 506 507 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 508 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 509 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 510 nla_len(mcgrp), NULL); 511 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 512 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 513 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 514 res->group, 515 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 516 continue; 517 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 518 break; 519 }; 520 521 return NL_SKIP; 522} 523 524 525static int nl_get_multicast_id(struct nl80211_global *global, 526 const char *family, const char *group) 527{ 528 struct nl_msg *msg; 529 int ret = -1; 530 struct family_data res = { group, -ENOENT }; 531 532 msg = nlmsg_alloc(); 533 if (!msg) 534 return -ENOMEM; 535 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 536 0, 0, CTRL_CMD_GETFAMILY, 0); 537 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); 538 539 ret = send_and_recv_msgs_global(global, msg, family_handler, &res); 540 msg = NULL; 541 if (ret == 0) 542 ret = res.id; 543 544nla_put_failure: 545 nlmsg_free(msg); 546 return ret; 547} 548 549 550static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 551 struct nl_msg *msg, int flags, uint8_t cmd) 552{ 553 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 554 0, flags, cmd, 0); 555} 556 557 558struct wiphy_idx_data { 559 int wiphy_idx; 560}; 561 562 563static int netdev_info_handler(struct nl_msg *msg, void *arg) 564{ 565 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 566 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 567 struct wiphy_idx_data *info = arg; 568 569 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 570 genlmsg_attrlen(gnlh, 0), NULL); 571 572 if (tb[NL80211_ATTR_WIPHY]) 573 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 574 575 return NL_SKIP; 576} 577 578 579static int nl80211_get_wiphy_index(struct i802_bss *bss) 580{ 581 struct nl_msg *msg; 582 struct wiphy_idx_data data = { 583 .wiphy_idx = -1, 584 }; 585 586 msg = nlmsg_alloc(); 587 if (!msg) 588 return -1; 589 590 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); 591 592 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 593 594 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 595 return data.wiphy_idx; 596 msg = NULL; 597nla_put_failure: 598 nlmsg_free(msg); 599 return -1; 600} 601 602 603static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 604 struct nl80211_wiphy_data *w) 605{ 606 struct nl_msg *msg; 607 int ret = -1; 608 609 msg = nlmsg_alloc(); 610 if (!msg) 611 return -1; 612 613 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); 614 615 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); 616 617 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 618 msg = NULL; 619 if (ret) { 620 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 621 "failed: ret=%d (%s)", 622 ret, strerror(-ret)); 623 goto nla_put_failure; 624 } 625 ret = 0; 626nla_put_failure: 627 nlmsg_free(msg); 628 return ret; 629} 630 631 632static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 633{ 634 struct nl80211_wiphy_data *w = eloop_ctx; 635 636 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 637 638 nl_recvmsgs(handle, w->nl_cb); 639} 640 641 642static int process_beacon_event(struct nl_msg *msg, void *arg) 643{ 644 struct nl80211_wiphy_data *w = arg; 645 struct wpa_driver_nl80211_data *drv; 646 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 647 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 648 union wpa_event_data event; 649 650 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 651 genlmsg_attrlen(gnlh, 0), NULL); 652 653 if (gnlh->cmd != NL80211_CMD_FRAME) { 654 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 655 gnlh->cmd); 656 return NL_SKIP; 657 } 658 659 if (!tb[NL80211_ATTR_FRAME]) 660 return NL_SKIP; 661 662 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 663 wiphy_list) { 664 os_memset(&event, 0, sizeof(event)); 665 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 666 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 667 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 668 } 669 670 return NL_SKIP; 671} 672 673 674static struct nl80211_wiphy_data * 675nl80211_get_wiphy_data_ap(struct i802_bss *bss) 676{ 677 static DEFINE_DL_LIST(nl80211_wiphys); 678 struct nl80211_wiphy_data *w; 679 int wiphy_idx, found = 0; 680 struct i802_bss *tmp_bss; 681 682 if (bss->wiphy_data != NULL) 683 return bss->wiphy_data; 684 685 wiphy_idx = nl80211_get_wiphy_index(bss); 686 687 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 688 if (w->wiphy_idx == wiphy_idx) 689 goto add; 690 } 691 692 /* alloc new one */ 693 w = os_zalloc(sizeof(*w)); 694 if (w == NULL) 695 return NULL; 696 w->wiphy_idx = wiphy_idx; 697 dl_list_init(&w->bsss); 698 dl_list_init(&w->drvs); 699 700 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 701 if (!w->nl_cb) { 702 os_free(w); 703 return NULL; 704 } 705 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 706 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 707 w); 708 709 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 710 "wiphy beacons"); 711 if (w->nl_beacons == NULL) { 712 os_free(w); 713 return NULL; 714 } 715 716 if (nl80211_register_beacons(bss->drv, w)) { 717 nl_destroy_handles(&w->nl_beacons); 718 os_free(w); 719 return NULL; 720 } 721 722 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons), 723 nl80211_recv_beacons, w, w->nl_beacons); 724 725 dl_list_add(&nl80211_wiphys, &w->list); 726 727add: 728 /* drv entry for this bss already there? */ 729 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 730 if (tmp_bss->drv == bss->drv) { 731 found = 1; 732 break; 733 } 734 } 735 /* if not add it */ 736 if (!found) 737 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 738 739 dl_list_add(&w->bsss, &bss->wiphy_list); 740 bss->wiphy_data = w; 741 return w; 742} 743 744 745static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 746{ 747 struct nl80211_wiphy_data *w = bss->wiphy_data; 748 struct i802_bss *tmp_bss; 749 int found = 0; 750 751 if (w == NULL) 752 return; 753 bss->wiphy_data = NULL; 754 dl_list_del(&bss->wiphy_list); 755 756 /* still any for this drv present? */ 757 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 758 if (tmp_bss->drv == bss->drv) { 759 found = 1; 760 break; 761 } 762 } 763 /* if not remove it */ 764 if (!found) 765 dl_list_del(&bss->drv->wiphy_list); 766 767 if (!dl_list_empty(&w->bsss)) 768 return; 769 770 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons)); 771 772 nl_cb_put(w->nl_cb); 773 nl_destroy_handles(&w->nl_beacons); 774 dl_list_del(&w->list); 775 os_free(w); 776} 777 778 779static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 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(bssid, drv->bssid, ETH_ALEN); 786 return 0; 787} 788 789 790static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 791{ 792 struct i802_bss *bss = priv; 793 struct wpa_driver_nl80211_data *drv = bss->drv; 794 if (!drv->associated) 795 return -1; 796 os_memcpy(ssid, drv->ssid, drv->ssid_len); 797 return drv->ssid_len; 798} 799 800 801static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv, 802 char *buf, size_t len, int del) 803{ 804 union wpa_event_data event; 805 806 os_memset(&event, 0, sizeof(event)); 807 if (len > sizeof(event.interface_status.ifname)) 808 len = sizeof(event.interface_status.ifname) - 1; 809 os_memcpy(event.interface_status.ifname, buf, len); 810 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED : 811 EVENT_INTERFACE_ADDED; 812 813 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s", 814 del ? "DEL" : "NEW", 815 event.interface_status.ifname, 816 del ? "removed" : "added"); 817 818 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) { 819 if (del) { 820 if (drv->if_removed) { 821 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 822 "already set - ignore event"); 823 return; 824 } 825 drv->if_removed = 1; 826 } else { 827 if (if_nametoindex(drv->first_bss.ifname) == 0) { 828 wpa_printf(MSG_DEBUG, "nl80211: Interface %s " 829 "does not exist - ignore " 830 "RTM_NEWLINK", 831 drv->first_bss.ifname); 832 return; 833 } 834 if (!drv->if_removed) { 835 wpa_printf(MSG_DEBUG, "nl80211: if_removed " 836 "already cleared - ignore event"); 837 return; 838 } 839 drv->if_removed = 0; 840 } 841 } 842 843 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 844} 845 846 847static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 848 u8 *buf, size_t len) 849{ 850 int attrlen, rta_len; 851 struct rtattr *attr; 852 853 attrlen = len; 854 attr = (struct rtattr *) buf; 855 856 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 857 while (RTA_OK(attr, attrlen)) { 858 if (attr->rta_type == IFLA_IFNAME) { 859 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname) 860 == 0) 861 return 1; 862 else 863 break; 864 } 865 attr = RTA_NEXT(attr, attrlen); 866 } 867 868 return 0; 869} 870 871 872static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 873 int ifindex, u8 *buf, size_t len) 874{ 875 if (drv->ifindex == ifindex) 876 return 1; 877 878 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 879 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname); 880 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 881 "interface"); 882 wpa_driver_nl80211_finish_drv_init(drv); 883 return 1; 884 } 885 886 return 0; 887} 888 889 890static struct wpa_driver_nl80211_data * 891nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 892{ 893 struct wpa_driver_nl80211_data *drv; 894 dl_list_for_each(drv, &global->interfaces, 895 struct wpa_driver_nl80211_data, list) { 896 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 897 have_ifidx(drv, idx)) 898 return drv; 899 } 900 return NULL; 901} 902 903 904static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 905 struct ifinfomsg *ifi, 906 u8 *buf, size_t len) 907{ 908 struct nl80211_global *global = ctx; 909 struct wpa_driver_nl80211_data *drv; 910 int attrlen, rta_len; 911 struct rtattr *attr; 912 u32 brid = 0; 913 char namebuf[IFNAMSIZ]; 914 915 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 916 if (!drv) { 917 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign " 918 "ifindex %d", ifi->ifi_index); 919 return; 920 } 921 922 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x " 923 "(%s%s%s%s)", 924 drv->operstate, ifi->ifi_flags, 925 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 926 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 927 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 928 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 929 930 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 931 if (if_indextoname(ifi->ifi_index, namebuf) && 932 linux_iface_up(drv->global->ioctl_sock, 933 drv->first_bss.ifname) > 0) { 934 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 935 "event since interface %s is up", namebuf); 936 return; 937 } 938 wpa_printf(MSG_DEBUG, "nl80211: Interface down"); 939 if (drv->ignore_if_down_event) { 940 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 941 "event generated by mode change"); 942 drv->ignore_if_down_event = 0; 943 } else { 944 drv->if_disabled = 1; 945 wpa_supplicant_event(drv->ctx, 946 EVENT_INTERFACE_DISABLED, NULL); 947 } 948 } 949 950 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 951 if (if_indextoname(ifi->ifi_index, namebuf) && 952 linux_iface_up(drv->global->ioctl_sock, 953 drv->first_bss.ifname) == 0) { 954 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 955 "event since interface %s is down", 956 namebuf); 957 } else if (if_nametoindex(drv->first_bss.ifname) == 0) { 958 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 959 "event since interface %s does not exist", 960 drv->first_bss.ifname); 961 } else if (drv->if_removed) { 962 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 963 "event since interface %s is marked " 964 "removed", drv->first_bss.ifname); 965 } else { 966 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 967 drv->if_disabled = 0; 968 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 969 NULL); 970 } 971 } 972 973 /* 974 * Some drivers send the association event before the operup event--in 975 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 976 * fails. This will hit us when wpa_supplicant does not need to do 977 * IEEE 802.1X authentication 978 */ 979 if (drv->operstate == 1 && 980 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 981 !(ifi->ifi_flags & IFF_RUNNING)) 982 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 983 -1, IF_OPER_UP); 984 985 attrlen = len; 986 attr = (struct rtattr *) buf; 987 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 988 while (RTA_OK(attr, attrlen)) { 989 if (attr->rta_type == IFLA_IFNAME) { 990 wpa_driver_nl80211_event_link( 991 drv, 992 ((char *) attr) + rta_len, 993 attr->rta_len - rta_len, 0); 994 } else if (attr->rta_type == IFLA_MASTER) 995 brid = nla_get_u32((struct nlattr *) attr); 996 attr = RTA_NEXT(attr, attrlen); 997 } 998 999 if (ifi->ifi_family == AF_BRIDGE && brid) { 1000 /* device has been added to bridge */ 1001 if_indextoname(brid, namebuf); 1002 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1003 brid, namebuf); 1004 add_ifidx(drv, brid); 1005 } 1006} 1007 1008 1009static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1010 struct ifinfomsg *ifi, 1011 u8 *buf, size_t len) 1012{ 1013 struct nl80211_global *global = ctx; 1014 struct wpa_driver_nl80211_data *drv; 1015 int attrlen, rta_len; 1016 struct rtattr *attr; 1017 u32 brid = 0; 1018 1019 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1020 if (!drv) { 1021 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for " 1022 "foreign ifindex %d", ifi->ifi_index); 1023 return; 1024 } 1025 1026 attrlen = len; 1027 attr = (struct rtattr *) buf; 1028 1029 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 1030 while (RTA_OK(attr, attrlen)) { 1031 if (attr->rta_type == IFLA_IFNAME) { 1032 wpa_driver_nl80211_event_link( 1033 drv, 1034 ((char *) attr) + rta_len, 1035 attr->rta_len - rta_len, 1); 1036 } else if (attr->rta_type == IFLA_MASTER) 1037 brid = nla_get_u32((struct nlattr *) attr); 1038 attr = RTA_NEXT(attr, attrlen); 1039 } 1040 1041 if (ifi->ifi_family == AF_BRIDGE && brid) { 1042 /* device has been removed from bridge */ 1043 char namebuf[IFNAMSIZ]; 1044 if_indextoname(brid, namebuf); 1045 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " 1046 "%s", brid, namebuf); 1047 del_ifidx(drv, brid); 1048 } 1049} 1050 1051 1052static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, 1053 const u8 *frame, size_t len) 1054{ 1055 const struct ieee80211_mgmt *mgmt; 1056 union wpa_event_data event; 1057 1058 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); 1059 mgmt = (const struct ieee80211_mgmt *) frame; 1060 if (len < 24 + sizeof(mgmt->u.auth)) { 1061 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1062 "frame"); 1063 return; 1064 } 1065 1066 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); 1067 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 1068 os_memset(&event, 0, sizeof(event)); 1069 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); 1070 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); 1071 event.auth.auth_transaction = 1072 le_to_host16(mgmt->u.auth.auth_transaction); 1073 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); 1074 if (len > 24 + sizeof(mgmt->u.auth)) { 1075 event.auth.ies = mgmt->u.auth.variable; 1076 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); 1077 } 1078 1079 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); 1080} 1081 1082 1083static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1084{ 1085 struct nl_msg *msg; 1086 int ret; 1087 struct nl80211_bss_info_arg arg; 1088 1089 os_memset(&arg, 0, sizeof(arg)); 1090 msg = nlmsg_alloc(); 1091 if (!msg) 1092 goto nla_put_failure; 1093 1094 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1095 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1096 1097 arg.drv = drv; 1098 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1099 msg = NULL; 1100 if (ret == 0) { 1101 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1102 "associated BSS from scan results: %u MHz", 1103 arg.assoc_freq); 1104 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq; 1105 } 1106 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1107 "(%s)", ret, strerror(-ret)); 1108nla_put_failure: 1109 nlmsg_free(msg); 1110 return drv->assoc_freq; 1111} 1112 1113 1114static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, 1115 const u8 *frame, size_t len) 1116{ 1117 const struct ieee80211_mgmt *mgmt; 1118 union wpa_event_data event; 1119 u16 status; 1120 1121 wpa_printf(MSG_DEBUG, "nl80211: Associate event"); 1122 mgmt = (const struct ieee80211_mgmt *) frame; 1123 if (len < 24 + sizeof(mgmt->u.assoc_resp)) { 1124 wpa_printf(MSG_DEBUG, "nl80211: Too short association event " 1125 "frame"); 1126 return; 1127 } 1128 1129 status = le_to_host16(mgmt->u.assoc_resp.status_code); 1130 if (status != WLAN_STATUS_SUCCESS) { 1131 os_memset(&event, 0, sizeof(event)); 1132 event.assoc_reject.bssid = mgmt->bssid; 1133 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1134 event.assoc_reject.resp_ies = 1135 (u8 *) mgmt->u.assoc_resp.variable; 1136 event.assoc_reject.resp_ies_len = 1137 len - 24 - sizeof(mgmt->u.assoc_resp); 1138 } 1139 event.assoc_reject.status_code = status; 1140 1141 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1142 return; 1143 } 1144 1145 drv->associated = 1; 1146 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); 1147 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); 1148 1149 os_memset(&event, 0, sizeof(event)); 1150 if (len > 24 + sizeof(mgmt->u.assoc_resp)) { 1151 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; 1152 event.assoc_info.resp_ies_len = 1153 len - 24 - sizeof(mgmt->u.assoc_resp); 1154 } 1155 1156 event.assoc_info.freq = drv->assoc_freq; 1157 1158 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1159} 1160 1161 1162static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, 1163 enum nl80211_commands cmd, struct nlattr *status, 1164 struct nlattr *addr, struct nlattr *req_ie, 1165 struct nlattr *resp_ie) 1166{ 1167 union wpa_event_data event; 1168 1169 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1170 /* 1171 * Avoid reporting two association events that would confuse 1172 * the core code. 1173 */ 1174 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " 1175 "when using userspace SME", cmd); 1176 return; 1177 } 1178 1179 if (cmd == NL80211_CMD_CONNECT) 1180 wpa_printf(MSG_DEBUG, "nl80211: Connect event"); 1181 else if (cmd == NL80211_CMD_ROAM) 1182 wpa_printf(MSG_DEBUG, "nl80211: Roam event"); 1183 1184 os_memset(&event, 0, sizeof(event)); 1185 if (cmd == NL80211_CMD_CONNECT && 1186 nla_get_u16(status) != WLAN_STATUS_SUCCESS) { 1187 if (addr) 1188 event.assoc_reject.bssid = nla_data(addr); 1189 if (resp_ie) { 1190 event.assoc_reject.resp_ies = nla_data(resp_ie); 1191 event.assoc_reject.resp_ies_len = nla_len(resp_ie); 1192 } 1193 event.assoc_reject.status_code = nla_get_u16(status); 1194 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); 1195 return; 1196 } 1197 1198 drv->associated = 1; 1199 if (addr) { 1200 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); 1201 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 1202 } 1203 1204 if (req_ie) { 1205 event.assoc_info.req_ies = nla_data(req_ie); 1206 event.assoc_info.req_ies_len = nla_len(req_ie); 1207 } 1208 if (resp_ie) { 1209 event.assoc_info.resp_ies = nla_data(resp_ie); 1210 event.assoc_info.resp_ies_len = nla_len(resp_ie); 1211 } 1212 1213 event.assoc_info.freq = nl80211_get_assoc_freq(drv); 1214 1215 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); 1216} 1217 1218 1219static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, 1220 struct nlattr *reason, struct nlattr *addr, 1221 struct nlattr *by_ap) 1222{ 1223 union wpa_event_data data; 1224 unsigned int locally_generated = by_ap == NULL; 1225 1226 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 1227 /* 1228 * Avoid reporting two disassociation events that could 1229 * confuse the core code. 1230 */ 1231 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1232 "event when using userspace SME"); 1233 return; 1234 } 1235 1236 if (drv->ignore_next_local_disconnect) { 1237 drv->ignore_next_local_disconnect = 0; 1238 if (locally_generated) { 1239 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " 1240 "event triggered during reassociation"); 1241 return; 1242 } 1243 wpa_printf(MSG_WARNING, "nl80211: Was expecting local " 1244 "disconnect but got another disconnect " 1245 "event first"); 1246 } 1247 1248 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); 1249 nl80211_mark_disconnected(drv); 1250 os_memset(&data, 0, sizeof(data)); 1251 if (reason) 1252 data.deauth_info.reason_code = nla_get_u16(reason); 1253 data.deauth_info.locally_generated = by_ap == NULL; 1254 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); 1255} 1256 1257 1258static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, 1259 struct nlattr *freq, struct nlattr *type) 1260{ 1261 union wpa_event_data data; 1262 int ht_enabled = 1; 1263 int chan_offset = 0; 1264 1265 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); 1266 1267 if (!freq || !type) 1268 return; 1269 1270 switch (nla_get_u32(type)) { 1271 case NL80211_CHAN_NO_HT: 1272 ht_enabled = 0; 1273 break; 1274 case NL80211_CHAN_HT20: 1275 break; 1276 case NL80211_CHAN_HT40PLUS: 1277 chan_offset = 1; 1278 break; 1279 case NL80211_CHAN_HT40MINUS: 1280 chan_offset = -1; 1281 break; 1282 } 1283 1284 data.ch_switch.freq = nla_get_u32(freq); 1285 data.ch_switch.ht_enabled = ht_enabled; 1286 data.ch_switch.ch_offset = chan_offset; 1287 1288 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); 1289} 1290 1291 1292static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, 1293 enum nl80211_commands cmd, struct nlattr *addr) 1294{ 1295 union wpa_event_data event; 1296 enum wpa_event_type ev; 1297 1298 if (nla_len(addr) != ETH_ALEN) 1299 return; 1300 1301 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, 1302 cmd, MAC2STR((u8 *) nla_data(addr))); 1303 1304 if (cmd == NL80211_CMD_AUTHENTICATE) 1305 ev = EVENT_AUTH_TIMED_OUT; 1306 else if (cmd == NL80211_CMD_ASSOCIATE) 1307 ev = EVENT_ASSOC_TIMED_OUT; 1308 else 1309 return; 1310 1311 os_memset(&event, 0, sizeof(event)); 1312 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); 1313 wpa_supplicant_event(drv->ctx, ev, &event); 1314} 1315 1316 1317static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, 1318 struct nlattr *freq, struct nlattr *sig, 1319 const u8 *frame, size_t len) 1320{ 1321 const struct ieee80211_mgmt *mgmt; 1322 union wpa_event_data event; 1323 u16 fc, stype; 1324 int ssi_signal = 0; 1325 1326 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); 1327 mgmt = (const struct ieee80211_mgmt *) frame; 1328 if (len < 24) { 1329 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame"); 1330 return; 1331 } 1332 1333 fc = le_to_host16(mgmt->frame_control); 1334 stype = WLAN_FC_GET_STYPE(fc); 1335 1336 if (sig) 1337 ssi_signal = (s32) nla_get_u32(sig); 1338 1339 os_memset(&event, 0, sizeof(event)); 1340 if (freq) { 1341 event.rx_action.freq = nla_get_u32(freq); 1342 drv->last_mgmt_freq = event.rx_action.freq; 1343 } 1344 if (stype == WLAN_FC_STYPE_ACTION) { 1345 event.rx_action.da = mgmt->da; 1346 event.rx_action.sa = mgmt->sa; 1347 event.rx_action.bssid = mgmt->bssid; 1348 event.rx_action.category = mgmt->u.action.category; 1349 event.rx_action.data = &mgmt->u.action.category + 1; 1350 event.rx_action.len = frame + len - event.rx_action.data; 1351 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event); 1352 } else { 1353 event.rx_mgmt.frame = frame; 1354 event.rx_mgmt.frame_len = len; 1355 event.rx_mgmt.ssi_signal = ssi_signal; 1356 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 1357 } 1358} 1359 1360 1361static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, 1362 struct nlattr *cookie, const u8 *frame, 1363 size_t len, struct nlattr *ack) 1364{ 1365 union wpa_event_data event; 1366 const struct ieee80211_hdr *hdr; 1367 u16 fc; 1368 1369 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); 1370 if (!is_ap_interface(drv->nlmode)) { 1371 u64 cookie_val; 1372 1373 if (!cookie) 1374 return; 1375 1376 cookie_val = nla_get_u64(cookie); 1377 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" 1378 " cookie=0%llx%s (ack=%d)", 1379 (long long unsigned int) cookie_val, 1380 cookie_val == drv->send_action_cookie ? 1381 " (match)" : " (unknown)", ack != NULL); 1382 if (cookie_val != drv->send_action_cookie) 1383 return; 1384 } 1385 1386 hdr = (const struct ieee80211_hdr *) frame; 1387 fc = le_to_host16(hdr->frame_control); 1388 1389 os_memset(&event, 0, sizeof(event)); 1390 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 1391 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 1392 event.tx_status.dst = hdr->addr1; 1393 event.tx_status.data = frame; 1394 event.tx_status.data_len = len; 1395 event.tx_status.ack = ack != NULL; 1396 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); 1397} 1398 1399 1400static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, 1401 enum wpa_event_type type, 1402 const u8 *frame, size_t len) 1403{ 1404 const struct ieee80211_mgmt *mgmt; 1405 union wpa_event_data event; 1406 const u8 *bssid = NULL; 1407 u16 reason_code = 0; 1408 1409 if (type == EVENT_DEAUTH) 1410 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); 1411 else 1412 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); 1413 1414 mgmt = (const struct ieee80211_mgmt *) frame; 1415 if (len >= 24) { 1416 bssid = mgmt->bssid; 1417 1418 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && 1419 !drv->associated && 1420 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && 1421 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && 1422 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { 1423 /* 1424 * Avoid issues with some roaming cases where 1425 * disconnection event for the old AP may show up after 1426 * we have started connection with the new AP. 1427 */ 1428 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, 1429 MAC2STR(bssid), 1430 MAC2STR(drv->auth_attempt_bssid)); 1431 return; 1432 } 1433 1434 if (drv->associated != 0 && 1435 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && 1436 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { 1437 /* 1438 * We have presumably received this deauth as a 1439 * response to a clear_state_mismatch() outgoing 1440 * deauth. Don't let it take us offline! 1441 */ 1442 wpa_printf(MSG_DEBUG, "nl80211: Deauth received " 1443 "from Unknown BSSID " MACSTR " -- ignoring", 1444 MAC2STR(bssid)); 1445 return; 1446 } 1447 } 1448 1449 nl80211_mark_disconnected(drv); 1450 os_memset(&event, 0, sizeof(event)); 1451 1452 /* Note: Same offset for Reason Code in both frame subtypes */ 1453 if (len >= 24 + sizeof(mgmt->u.deauth)) 1454 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1455 1456 if (type == EVENT_DISASSOC) { 1457 event.disassoc_info.locally_generated = 1458 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1459 event.disassoc_info.addr = bssid; 1460 event.disassoc_info.reason_code = reason_code; 1461 if (frame + len > mgmt->u.disassoc.variable) { 1462 event.disassoc_info.ie = mgmt->u.disassoc.variable; 1463 event.disassoc_info.ie_len = frame + len - 1464 mgmt->u.disassoc.variable; 1465 } 1466 } else { 1467 event.deauth_info.locally_generated = 1468 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN); 1469 event.deauth_info.addr = bssid; 1470 event.deauth_info.reason_code = reason_code; 1471 if (frame + len > mgmt->u.deauth.variable) { 1472 event.deauth_info.ie = mgmt->u.deauth.variable; 1473 event.deauth_info.ie_len = frame + len - 1474 mgmt->u.deauth.variable; 1475 } 1476 } 1477 1478 wpa_supplicant_event(drv->ctx, type, &event); 1479} 1480 1481 1482static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, 1483 enum wpa_event_type type, 1484 const u8 *frame, size_t len) 1485{ 1486 const struct ieee80211_mgmt *mgmt; 1487 union wpa_event_data event; 1488 u16 reason_code = 0; 1489 1490 if (type == EVENT_UNPROT_DEAUTH) 1491 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); 1492 else 1493 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); 1494 1495 if (len < 24) 1496 return; 1497 1498 mgmt = (const struct ieee80211_mgmt *) frame; 1499 1500 os_memset(&event, 0, sizeof(event)); 1501 /* Note: Same offset for Reason Code in both frame subtypes */ 1502 if (len >= 24 + sizeof(mgmt->u.deauth)) 1503 reason_code = le_to_host16(mgmt->u.deauth.reason_code); 1504 1505 if (type == EVENT_UNPROT_DISASSOC) { 1506 event.unprot_disassoc.sa = mgmt->sa; 1507 event.unprot_disassoc.da = mgmt->da; 1508 event.unprot_disassoc.reason_code = reason_code; 1509 } else { 1510 event.unprot_deauth.sa = mgmt->sa; 1511 event.unprot_deauth.da = mgmt->da; 1512 event.unprot_deauth.reason_code = reason_code; 1513 } 1514 1515 wpa_supplicant_event(drv->ctx, type, &event); 1516} 1517 1518 1519static void mlme_event(struct i802_bss *bss, 1520 enum nl80211_commands cmd, struct nlattr *frame, 1521 struct nlattr *addr, struct nlattr *timed_out, 1522 struct nlattr *freq, struct nlattr *ack, 1523 struct nlattr *cookie, struct nlattr *sig) 1524{ 1525 struct wpa_driver_nl80211_data *drv = bss->drv; 1526 const u8 *data; 1527 size_t len; 1528 1529 if (timed_out && addr) { 1530 mlme_timeout_event(drv, cmd, addr); 1531 return; 1532 } 1533 1534 if (frame == NULL) { 1535 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame " 1536 "data", cmd); 1537 return; 1538 } 1539 1540 data = nla_data(frame); 1541 len = nla_len(frame); 1542 if (len < 4 + 2 * ETH_ALEN) { 1543 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d on %s(" MACSTR 1544 ") - too short", 1545 cmd, bss->ifname, MAC2STR(bss->addr)); 1546 return; 1547 } 1548 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d on %s(" MACSTR ") A1=" 1549 MACSTR " A2=" MACSTR, cmd, bss->ifname, MAC2STR(bss->addr), 1550 MAC2STR(data + 4), MAC2STR(data + 4 + ETH_ALEN)); 1551 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && 1552 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && 1553 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { 1554 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " 1555 "for foreign address", bss->ifname); 1556 return; 1557 } 1558 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", 1559 nla_data(frame), nla_len(frame)); 1560 1561 switch (cmd) { 1562 case NL80211_CMD_AUTHENTICATE: 1563 mlme_event_auth(drv, nla_data(frame), nla_len(frame)); 1564 break; 1565 case NL80211_CMD_ASSOCIATE: 1566 mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); 1567 break; 1568 case NL80211_CMD_DEAUTHENTICATE: 1569 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, 1570 nla_data(frame), nla_len(frame)); 1571 break; 1572 case NL80211_CMD_DISASSOCIATE: 1573 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, 1574 nla_data(frame), nla_len(frame)); 1575 break; 1576 case NL80211_CMD_FRAME: 1577 mlme_event_mgmt(drv, freq, sig, nla_data(frame), 1578 nla_len(frame)); 1579 break; 1580 case NL80211_CMD_FRAME_TX_STATUS: 1581 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), 1582 nla_len(frame), ack); 1583 break; 1584 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 1585 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, 1586 nla_data(frame), nla_len(frame)); 1587 break; 1588 case NL80211_CMD_UNPROT_DISASSOCIATE: 1589 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, 1590 nla_data(frame), nla_len(frame)); 1591 break; 1592 default: 1593 break; 1594 } 1595} 1596 1597 1598static void mlme_event_michael_mic_failure(struct i802_bss *bss, 1599 struct nlattr *tb[]) 1600{ 1601 union wpa_event_data data; 1602 1603 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); 1604 os_memset(&data, 0, sizeof(data)); 1605 if (tb[NL80211_ATTR_MAC]) { 1606 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", 1607 nla_data(tb[NL80211_ATTR_MAC]), 1608 nla_len(tb[NL80211_ATTR_MAC])); 1609 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); 1610 } 1611 if (tb[NL80211_ATTR_KEY_SEQ]) { 1612 wpa_hexdump(MSG_DEBUG, "nl80211: TSC", 1613 nla_data(tb[NL80211_ATTR_KEY_SEQ]), 1614 nla_len(tb[NL80211_ATTR_KEY_SEQ])); 1615 } 1616 if (tb[NL80211_ATTR_KEY_TYPE]) { 1617 enum nl80211_key_type key_type = 1618 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); 1619 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); 1620 if (key_type == NL80211_KEYTYPE_PAIRWISE) 1621 data.michael_mic_failure.unicast = 1; 1622 } else 1623 data.michael_mic_failure.unicast = 1; 1624 1625 if (tb[NL80211_ATTR_KEY_IDX]) { 1626 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); 1627 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); 1628 } 1629 1630 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); 1631} 1632 1633 1634static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, 1635 struct nlattr *tb[]) 1636{ 1637 if (tb[NL80211_ATTR_MAC] == NULL) { 1638 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " 1639 "event"); 1640 return; 1641 } 1642 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1643 drv->associated = 1; 1644 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", 1645 MAC2STR(drv->bssid)); 1646 1647 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); 1648} 1649 1650 1651static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, 1652 int cancel_event, struct nlattr *tb[]) 1653{ 1654 unsigned int freq, chan_type, duration; 1655 union wpa_event_data data; 1656 u64 cookie; 1657 1658 if (tb[NL80211_ATTR_WIPHY_FREQ]) 1659 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); 1660 else 1661 freq = 0; 1662 1663 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) 1664 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 1665 else 1666 chan_type = 0; 1667 1668 if (tb[NL80211_ATTR_DURATION]) 1669 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); 1670 else 1671 duration = 0; 1672 1673 if (tb[NL80211_ATTR_COOKIE]) 1674 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 1675 else 1676 cookie = 0; 1677 1678 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " 1679 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", 1680 cancel_event, freq, chan_type, duration, 1681 (long long unsigned int) cookie, 1682 cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); 1683 1684 if (cookie != drv->remain_on_chan_cookie) 1685 return; /* not for us */ 1686 1687 if (cancel_event) 1688 drv->pending_remain_on_chan = 0; 1689 1690 os_memset(&data, 0, sizeof(data)); 1691 data.remain_on_channel.freq = freq; 1692 data.remain_on_channel.duration = duration; 1693 wpa_supplicant_event(drv->ctx, cancel_event ? 1694 EVENT_CANCEL_REMAIN_ON_CHANNEL : 1695 EVENT_REMAIN_ON_CHANNEL, &data); 1696} 1697 1698 1699static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, 1700 struct nlattr *tb[]) 1701{ 1702 union wpa_event_data data; 1703 1704 os_memset(&data, 0, sizeof(data)); 1705 1706 if (tb[NL80211_ATTR_IE]) { 1707 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); 1708 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); 1709 } 1710 1711 if (tb[NL80211_ATTR_IE_RIC]) { 1712 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); 1713 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); 1714 } 1715 1716 if (tb[NL80211_ATTR_MAC]) 1717 os_memcpy(data.ft_ies.target_ap, 1718 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 1719 1720 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, 1721 MAC2STR(data.ft_ies.target_ap)); 1722 1723 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); 1724} 1725 1726 1727static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, 1728 struct nlattr *tb[]) 1729{ 1730 union wpa_event_data event; 1731 struct nlattr *nl; 1732 int rem; 1733 struct scan_info *info; 1734#define MAX_REPORT_FREQS 50 1735 int freqs[MAX_REPORT_FREQS]; 1736 int num_freqs = 0; 1737 1738 if (drv->scan_for_auth) { 1739 drv->scan_for_auth = 0; 1740 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " 1741 "cfg80211 BSS entry"); 1742 wpa_driver_nl80211_authenticate_retry(drv); 1743 return; 1744 } 1745 1746 os_memset(&event, 0, sizeof(event)); 1747 info = &event.scan_info; 1748 info->aborted = aborted; 1749 1750 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 1751 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { 1752 struct wpa_driver_scan_ssid *s = 1753 &info->ssids[info->num_ssids]; 1754 s->ssid = nla_data(nl); 1755 s->ssid_len = nla_len(nl); 1756 info->num_ssids++; 1757 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) 1758 break; 1759 } 1760 } 1761 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 1762 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) 1763 { 1764 freqs[num_freqs] = nla_get_u32(nl); 1765 num_freqs++; 1766 if (num_freqs == MAX_REPORT_FREQS - 1) 1767 break; 1768 } 1769 info->freqs = freqs; 1770 info->num_freqs = num_freqs; 1771 } 1772 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); 1773} 1774 1775 1776static int get_link_signal(struct nl_msg *msg, void *arg) 1777{ 1778 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1779 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1780 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1781 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1782 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1783 }; 1784 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1785 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1786 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1787 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1788 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1789 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1790 }; 1791 struct wpa_signal_info *sig_change = arg; 1792 1793 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1794 genlmsg_attrlen(gnlh, 0), NULL); 1795 if (!tb[NL80211_ATTR_STA_INFO] || 1796 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 1797 tb[NL80211_ATTR_STA_INFO], policy)) 1798 return NL_SKIP; 1799 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 1800 return NL_SKIP; 1801 1802 sig_change->current_signal = 1803 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 1804 1805 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 1806 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 1807 sinfo[NL80211_STA_INFO_TX_BITRATE], 1808 rate_policy)) { 1809 sig_change->current_txrate = 0; 1810 } else { 1811 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 1812 sig_change->current_txrate = 1813 nla_get_u16(rinfo[ 1814 NL80211_RATE_INFO_BITRATE]) * 100; 1815 } 1816 } 1817 } 1818 1819 return NL_SKIP; 1820} 1821 1822 1823static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 1824 struct wpa_signal_info *sig) 1825{ 1826 struct nl_msg *msg; 1827 1828 sig->current_signal = -9999; 1829 sig->current_txrate = 0; 1830 1831 msg = nlmsg_alloc(); 1832 if (!msg) 1833 return -ENOMEM; 1834 1835 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 1836 1837 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1838 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 1839 1840 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 1841 nla_put_failure: 1842 nlmsg_free(msg); 1843 return -ENOBUFS; 1844} 1845 1846 1847static int get_link_noise(struct nl_msg *msg, void *arg) 1848{ 1849 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1850 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1851 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1852 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1853 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1854 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1855 }; 1856 struct wpa_signal_info *sig_change = arg; 1857 1858 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1859 genlmsg_attrlen(gnlh, 0), NULL); 1860 1861 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1862 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 1863 return NL_SKIP; 1864 } 1865 1866 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1867 tb[NL80211_ATTR_SURVEY_INFO], 1868 survey_policy)) { 1869 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 1870 "attributes!"); 1871 return NL_SKIP; 1872 } 1873 1874 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1875 return NL_SKIP; 1876 1877 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1878 sig_change->frequency) 1879 return NL_SKIP; 1880 1881 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1882 return NL_SKIP; 1883 1884 sig_change->current_noise = 1885 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1886 1887 return NL_SKIP; 1888} 1889 1890 1891static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 1892 struct wpa_signal_info *sig_change) 1893{ 1894 struct nl_msg *msg; 1895 1896 sig_change->current_noise = 9999; 1897 sig_change->frequency = drv->assoc_freq; 1898 1899 msg = nlmsg_alloc(); 1900 if (!msg) 1901 return -ENOMEM; 1902 1903 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1904 1905 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1906 1907 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 1908 nla_put_failure: 1909 nlmsg_free(msg); 1910 return -ENOBUFS; 1911} 1912 1913 1914static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) 1915{ 1916 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1917 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1918 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1919 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1920 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1921 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1922 }; 1923 struct wpa_scan_results *scan_results = arg; 1924 struct wpa_scan_res *scan_res; 1925 size_t i; 1926 1927 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1928 genlmsg_attrlen(gnlh, 0), NULL); 1929 1930 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1931 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); 1932 return NL_SKIP; 1933 } 1934 1935 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1936 tb[NL80211_ATTR_SURVEY_INFO], 1937 survey_policy)) { 1938 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " 1939 "attributes"); 1940 return NL_SKIP; 1941 } 1942 1943 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1944 return NL_SKIP; 1945 1946 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1947 return NL_SKIP; 1948 1949 for (i = 0; i < scan_results->num; ++i) { 1950 scan_res = scan_results->res[i]; 1951 if (!scan_res) 1952 continue; 1953 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1954 scan_res->freq) 1955 continue; 1956 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) 1957 continue; 1958 scan_res->noise = (s8) 1959 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1960 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; 1961 } 1962 1963 return NL_SKIP; 1964} 1965 1966 1967static int nl80211_get_noise_for_scan_results( 1968 struct wpa_driver_nl80211_data *drv, 1969 struct wpa_scan_results *scan_res) 1970{ 1971 struct nl_msg *msg; 1972 1973 msg = nlmsg_alloc(); 1974 if (!msg) 1975 return -ENOMEM; 1976 1977 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1978 1979 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 1980 1981 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, 1982 scan_res); 1983 nla_put_failure: 1984 nlmsg_free(msg); 1985 return -ENOBUFS; 1986} 1987 1988 1989static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, 1990 struct nlattr *tb[]) 1991{ 1992 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 1993 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 1994 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, 1995 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 1996 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, 1997 }; 1998 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 1999 enum nl80211_cqm_rssi_threshold_event event; 2000 union wpa_event_data ed; 2001 struct wpa_signal_info sig; 2002 int res; 2003 2004 if (tb[NL80211_ATTR_CQM] == NULL || 2005 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], 2006 cqm_policy)) { 2007 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); 2008 return; 2009 } 2010 2011 os_memset(&ed, 0, sizeof(ed)); 2012 2013 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 2014 if (!tb[NL80211_ATTR_MAC]) 2015 return; 2016 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), 2017 ETH_ALEN); 2018 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); 2019 return; 2020 } 2021 2022 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) 2023 return; 2024 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 2025 2026 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { 2027 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2028 "event: RSSI high"); 2029 ed.signal_change.above_threshold = 1; 2030 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { 2031 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " 2032 "event: RSSI low"); 2033 ed.signal_change.above_threshold = 0; 2034 } else 2035 return; 2036 2037 res = nl80211_get_link_signal(drv, &sig); 2038 if (res == 0) { 2039 ed.signal_change.current_signal = sig.current_signal; 2040 ed.signal_change.current_txrate = sig.current_txrate; 2041 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", 2042 sig.current_signal, sig.current_txrate); 2043 } 2044 2045 res = nl80211_get_link_noise(drv, &sig); 2046 if (res == 0) { 2047 ed.signal_change.current_noise = sig.current_noise; 2048 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", 2049 sig.current_noise); 2050 } 2051 2052 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); 2053} 2054 2055 2056static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, 2057 struct nlattr **tb) 2058{ 2059 u8 *addr; 2060 union wpa_event_data data; 2061 2062 if (tb[NL80211_ATTR_MAC] == NULL) 2063 return; 2064 addr = nla_data(tb[NL80211_ATTR_MAC]); 2065 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); 2066 2067 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2068 u8 *ies = NULL; 2069 size_t ies_len = 0; 2070 if (tb[NL80211_ATTR_IE]) { 2071 ies = nla_data(tb[NL80211_ATTR_IE]); 2072 ies_len = nla_len(tb[NL80211_ATTR_IE]); 2073 } 2074 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); 2075 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); 2076 return; 2077 } 2078 2079 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2080 return; 2081 2082 os_memset(&data, 0, sizeof(data)); 2083 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); 2084 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); 2085} 2086 2087 2088static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, 2089 struct nlattr **tb) 2090{ 2091 u8 *addr; 2092 union wpa_event_data data; 2093 2094 if (tb[NL80211_ATTR_MAC] == NULL) 2095 return; 2096 addr = nla_data(tb[NL80211_ATTR_MAC]); 2097 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, 2098 MAC2STR(addr)); 2099 2100 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { 2101 drv_event_disassoc(drv->ctx, addr); 2102 return; 2103 } 2104 2105 if (drv->nlmode != NL80211_IFTYPE_ADHOC) 2106 return; 2107 2108 os_memset(&data, 0, sizeof(data)); 2109 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); 2110 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); 2111} 2112 2113 2114static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, 2115 struct nlattr **tb) 2116{ 2117 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; 2118 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { 2119 [NL80211_REKEY_DATA_KEK] = { 2120 .minlen = NL80211_KEK_LEN, 2121 .maxlen = NL80211_KEK_LEN, 2122 }, 2123 [NL80211_REKEY_DATA_KCK] = { 2124 .minlen = NL80211_KCK_LEN, 2125 .maxlen = NL80211_KCK_LEN, 2126 }, 2127 [NL80211_REKEY_DATA_REPLAY_CTR] = { 2128 .minlen = NL80211_REPLAY_CTR_LEN, 2129 .maxlen = NL80211_REPLAY_CTR_LEN, 2130 }, 2131 }; 2132 union wpa_event_data data; 2133 2134 if (!tb[NL80211_ATTR_MAC]) 2135 return; 2136 if (!tb[NL80211_ATTR_REKEY_DATA]) 2137 return; 2138 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, 2139 tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) 2140 return; 2141 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) 2142 return; 2143 2144 os_memset(&data, 0, sizeof(data)); 2145 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); 2146 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, 2147 MAC2STR(data.driver_gtk_rekey.bssid)); 2148 data.driver_gtk_rekey.replay_ctr = 2149 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); 2150 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", 2151 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); 2152 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); 2153} 2154 2155 2156static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, 2157 struct nlattr **tb) 2158{ 2159 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; 2160 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { 2161 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, 2162 [NL80211_PMKSA_CANDIDATE_BSSID] = { 2163 .minlen = ETH_ALEN, 2164 .maxlen = ETH_ALEN, 2165 }, 2166 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, 2167 }; 2168 union wpa_event_data data; 2169 2170 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); 2171 2172 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) 2173 return; 2174 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, 2175 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) 2176 return; 2177 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || 2178 !cand[NL80211_PMKSA_CANDIDATE_BSSID]) 2179 return; 2180 2181 os_memset(&data, 0, sizeof(data)); 2182 os_memcpy(data.pmkid_candidate.bssid, 2183 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); 2184 data.pmkid_candidate.index = 2185 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); 2186 data.pmkid_candidate.preauth = 2187 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; 2188 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); 2189} 2190 2191 2192static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, 2193 struct nlattr **tb) 2194{ 2195 union wpa_event_data data; 2196 2197 wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); 2198 2199 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) 2200 return; 2201 2202 os_memset(&data, 0, sizeof(data)); 2203 os_memcpy(data.client_poll.addr, 2204 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2205 2206 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); 2207} 2208 2209 2210static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, 2211 struct nlattr **tb) 2212{ 2213 union wpa_event_data data; 2214 2215 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); 2216 2217 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) 2218 return; 2219 2220 os_memset(&data, 0, sizeof(data)); 2221 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2222 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { 2223 case NL80211_TDLS_SETUP: 2224 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " 2225 MACSTR, MAC2STR(data.tdls.peer)); 2226 data.tdls.oper = TDLS_REQUEST_SETUP; 2227 break; 2228 case NL80211_TDLS_TEARDOWN: 2229 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " 2230 MACSTR, MAC2STR(data.tdls.peer)); 2231 data.tdls.oper = TDLS_REQUEST_TEARDOWN; 2232 break; 2233 default: 2234 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " 2235 "event"); 2236 return; 2237 } 2238 if (tb[NL80211_ATTR_REASON_CODE]) { 2239 data.tdls.reason_code = 2240 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); 2241 } 2242 2243 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); 2244} 2245 2246 2247static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, 2248 struct nlattr **tb) 2249{ 2250 union wpa_event_data data; 2251 u32 reason; 2252 2253 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); 2254 2255 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) 2256 return; 2257 2258 os_memset(&data, 0, sizeof(data)); 2259 os_memcpy(data.connect_failed_reason.addr, 2260 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); 2261 2262 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); 2263 switch (reason) { 2264 case NL80211_CONN_FAIL_MAX_CLIENTS: 2265 wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); 2266 data.connect_failed_reason.code = MAX_CLIENT_REACHED; 2267 break; 2268 case NL80211_CONN_FAIL_BLOCKED_CLIENT: 2269 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR 2270 " tried to connect", 2271 MAC2STR(data.connect_failed_reason.addr)); 2272 data.connect_failed_reason.code = BLOCKED_CLIENT; 2273 break; 2274 default: 2275 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " 2276 "%u", reason); 2277 return; 2278 } 2279 2280 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); 2281} 2282 2283 2284static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, 2285 struct nlattr **tb) 2286{ 2287 union wpa_event_data data; 2288 enum nl80211_radar_event event_type; 2289 2290 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) 2291 return; 2292 2293 os_memset(&data, 0, sizeof(data)); 2294 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]); 2295 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]); 2296 2297 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz", 2298 data.dfs_event.freq); 2299 2300 switch (event_type) { 2301 case NL80211_RADAR_DETECTED: 2302 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); 2303 break; 2304 case NL80211_RADAR_CAC_FINISHED: 2305 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); 2306 break; 2307 case NL80211_RADAR_CAC_ABORTED: 2308 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); 2309 break; 2310 case NL80211_RADAR_NOP_FINISHED: 2311 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); 2312 break; 2313 default: 2314 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " 2315 "received", event_type); 2316 break; 2317 } 2318} 2319 2320 2321static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, 2322 int wds) 2323{ 2324 struct wpa_driver_nl80211_data *drv = bss->drv; 2325 union wpa_event_data event; 2326 2327 if (!tb[NL80211_ATTR_MAC]) 2328 return; 2329 2330 os_memset(&event, 0, sizeof(event)); 2331 event.rx_from_unknown.bssid = bss->addr; 2332 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); 2333 event.rx_from_unknown.wds = wds; 2334 2335 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 2336} 2337 2338 2339static void do_process_drv_event(struct i802_bss *bss, int cmd, 2340 struct nlattr **tb) 2341{ 2342 struct wpa_driver_nl80211_data *drv = bss->drv; 2343 2344 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && 2345 (cmd == NL80211_CMD_NEW_SCAN_RESULTS || 2346 cmd == NL80211_CMD_SCAN_ABORTED)) { 2347 wpa_driver_nl80211_set_mode(&drv->first_bss, 2348 drv->ap_scan_as_station); 2349 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 2350 } 2351 2352 switch (cmd) { 2353 case NL80211_CMD_TRIGGER_SCAN: 2354 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); 2355 break; 2356 case NL80211_CMD_START_SCHED_SCAN: 2357 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); 2358 break; 2359 case NL80211_CMD_SCHED_SCAN_STOPPED: 2360 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); 2361 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); 2362 break; 2363 case NL80211_CMD_NEW_SCAN_RESULTS: 2364 wpa_dbg(drv->ctx, MSG_DEBUG, 2365 "nl80211: New scan results available"); 2366 drv->scan_complete_events = 1; 2367 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2368 drv->ctx); 2369 send_scan_event(drv, 0, tb); 2370 break; 2371 case NL80211_CMD_SCHED_SCAN_RESULTS: 2372 wpa_dbg(drv->ctx, MSG_DEBUG, 2373 "nl80211: New sched scan results available"); 2374 send_scan_event(drv, 0, tb); 2375 break; 2376 case NL80211_CMD_SCAN_ABORTED: 2377 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); 2378 /* 2379 * Need to indicate that scan results are available in order 2380 * not to make wpa_supplicant stop its scanning. 2381 */ 2382 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, 2383 drv->ctx); 2384 send_scan_event(drv, 1, tb); 2385 break; 2386 case NL80211_CMD_AUTHENTICATE: 2387 case NL80211_CMD_ASSOCIATE: 2388 case NL80211_CMD_DEAUTHENTICATE: 2389 case NL80211_CMD_DISASSOCIATE: 2390 case NL80211_CMD_FRAME_TX_STATUS: 2391 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 2392 case NL80211_CMD_UNPROT_DISASSOCIATE: 2393 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], 2394 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2395 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2396 tb[NL80211_ATTR_COOKIE], 2397 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2398 break; 2399 case NL80211_CMD_CONNECT: 2400 case NL80211_CMD_ROAM: 2401 mlme_event_connect(drv, cmd, 2402 tb[NL80211_ATTR_STATUS_CODE], 2403 tb[NL80211_ATTR_MAC], 2404 tb[NL80211_ATTR_REQ_IE], 2405 tb[NL80211_ATTR_RESP_IE]); 2406 break; 2407 case NL80211_CMD_CH_SWITCH_NOTIFY: 2408 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ], 2409 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); 2410 break; 2411 case NL80211_CMD_DISCONNECT: 2412 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], 2413 tb[NL80211_ATTR_MAC], 2414 tb[NL80211_ATTR_DISCONNECTED_BY_AP]); 2415 break; 2416 case NL80211_CMD_MICHAEL_MIC_FAILURE: 2417 mlme_event_michael_mic_failure(bss, tb); 2418 break; 2419 case NL80211_CMD_JOIN_IBSS: 2420 mlme_event_join_ibss(drv, tb); 2421 break; 2422 case NL80211_CMD_REMAIN_ON_CHANNEL: 2423 mlme_event_remain_on_channel(drv, 0, tb); 2424 break; 2425 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 2426 mlme_event_remain_on_channel(drv, 1, tb); 2427 break; 2428 case NL80211_CMD_NOTIFY_CQM: 2429 nl80211_cqm_event(drv, tb); 2430 break; 2431 case NL80211_CMD_REG_CHANGE: 2432 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); 2433 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2434 NULL); 2435 break; 2436 case NL80211_CMD_REG_BEACON_HINT: 2437 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); 2438 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, 2439 NULL); 2440 break; 2441 case NL80211_CMD_NEW_STATION: 2442 nl80211_new_station_event(drv, tb); 2443 break; 2444 case NL80211_CMD_DEL_STATION: 2445 nl80211_del_station_event(drv, tb); 2446 break; 2447 case NL80211_CMD_SET_REKEY_OFFLOAD: 2448 nl80211_rekey_offload_event(drv, tb); 2449 break; 2450 case NL80211_CMD_PMKSA_CANDIDATE: 2451 nl80211_pmksa_candidate_event(drv, tb); 2452 break; 2453 case NL80211_CMD_PROBE_CLIENT: 2454 nl80211_client_probe_event(drv, tb); 2455 break; 2456 case NL80211_CMD_TDLS_OPER: 2457 nl80211_tdls_oper_event(drv, tb); 2458 break; 2459 case NL80211_CMD_CONN_FAILED: 2460 nl80211_connect_failed_event(drv, tb); 2461 break; 2462 case NL80211_CMD_FT_EVENT: 2463 mlme_event_ft_event(drv, tb); 2464 break; 2465 case NL80211_CMD_RADAR_DETECT: 2466 nl80211_radar_event(drv, tb); 2467 break; 2468 default: 2469 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " 2470 "(cmd=%d)", cmd); 2471 break; 2472 } 2473} 2474 2475 2476static int process_drv_event(struct nl_msg *msg, void *arg) 2477{ 2478 struct wpa_driver_nl80211_data *drv = arg; 2479 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2480 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2481 struct i802_bss *bss; 2482 int ifidx = -1; 2483 2484 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2485 genlmsg_attrlen(gnlh, 0), NULL); 2486 2487 if (tb[NL80211_ATTR_IFINDEX]) 2488 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2489 2490 for (bss = &drv->first_bss; bss; bss = bss->next) { 2491 if (ifidx == -1 || ifidx == bss->ifindex) { 2492 do_process_drv_event(bss, gnlh->cmd, tb); 2493 return NL_SKIP; 2494 } 2495 } 2496 2497 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign " 2498 "interface (ifindex %d)", gnlh->cmd, ifidx); 2499 2500 return NL_SKIP; 2501} 2502 2503 2504static int process_global_event(struct nl_msg *msg, void *arg) 2505{ 2506 struct nl80211_global *global = arg; 2507 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2508 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2509 struct wpa_driver_nl80211_data *drv, *tmp; 2510 int ifidx = -1; 2511 struct i802_bss *bss; 2512 2513 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2514 genlmsg_attrlen(gnlh, 0), NULL); 2515 2516 if (tb[NL80211_ATTR_IFINDEX]) 2517 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 2518 2519 dl_list_for_each_safe(drv, tmp, &global->interfaces, 2520 struct wpa_driver_nl80211_data, list) { 2521 for (bss = &drv->first_bss; bss; bss = bss->next) { 2522 if (ifidx == -1 || ifidx == bss->ifindex) { 2523 do_process_drv_event(bss, gnlh->cmd, tb); 2524 return NL_SKIP; 2525 } 2526 } 2527 } 2528 2529 return NL_SKIP; 2530} 2531 2532 2533static int process_bss_event(struct nl_msg *msg, void *arg) 2534{ 2535 struct i802_bss *bss = arg; 2536 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2537 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2538 2539 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2540 genlmsg_attrlen(gnlh, 0), NULL); 2541 2542 switch (gnlh->cmd) { 2543 case NL80211_CMD_FRAME: 2544 case NL80211_CMD_FRAME_TX_STATUS: 2545 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], 2546 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], 2547 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], 2548 tb[NL80211_ATTR_COOKIE], 2549 tb[NL80211_ATTR_RX_SIGNAL_DBM]); 2550 break; 2551 case NL80211_CMD_UNEXPECTED_FRAME: 2552 nl80211_spurious_frame(bss, tb, 0); 2553 break; 2554 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: 2555 nl80211_spurious_frame(bss, tb, 1); 2556 break; 2557 default: 2558 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " 2559 "(cmd=%d)", gnlh->cmd); 2560 break; 2561 } 2562 2563 return NL_SKIP; 2564} 2565 2566 2567static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 2568 void *handle) 2569{ 2570 struct nl_cb *cb = eloop_ctx; 2571 2572 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 2573 2574 nl_recvmsgs(handle, cb); 2575} 2576 2577 2578/** 2579 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 2580 * @priv: driver_nl80211 private data 2581 * @alpha2_arg: country to which to switch to 2582 * Returns: 0 on success, -1 on failure 2583 * 2584 * This asks nl80211 to set the regulatory domain for given 2585 * country ISO / IEC alpha2. 2586 */ 2587static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 2588{ 2589 struct i802_bss *bss = priv; 2590 struct wpa_driver_nl80211_data *drv = bss->drv; 2591 char alpha2[3]; 2592 struct nl_msg *msg; 2593 2594 msg = nlmsg_alloc(); 2595 if (!msg) 2596 return -ENOMEM; 2597 2598 alpha2[0] = alpha2_arg[0]; 2599 alpha2[1] = alpha2_arg[1]; 2600 alpha2[2] = '\0'; 2601 2602 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); 2603 2604 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); 2605 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 2606 return -EINVAL; 2607 return 0; 2608nla_put_failure: 2609 nlmsg_free(msg); 2610 return -EINVAL; 2611} 2612 2613 2614static int protocol_feature_handler(struct nl_msg *msg, void *arg) 2615{ 2616 u32 *feat = arg; 2617 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 2618 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2619 2620 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2621 genlmsg_attrlen(gnlh, 0), NULL); 2622 2623 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) 2624 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); 2625 2626 return NL_SKIP; 2627} 2628 2629 2630static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) 2631{ 2632 u32 feat = 0; 2633 struct nl_msg *msg; 2634 2635 msg = nlmsg_alloc(); 2636 if (!msg) 2637 goto nla_put_failure; 2638 2639 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); 2640 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) 2641 return feat; 2642 2643 msg = NULL; 2644nla_put_failure: 2645 nlmsg_free(msg); 2646 return 0; 2647} 2648 2649 2650struct wiphy_info_data { 2651 struct wpa_driver_nl80211_data *drv; 2652 struct wpa_driver_capa *capa; 2653 2654 unsigned int error:1; 2655 unsigned int device_ap_sme:1; 2656 unsigned int poll_command_supported:1; 2657 unsigned int data_tx_status:1; 2658 unsigned int monitor_supported:1; 2659 unsigned int auth_supported:1; 2660 unsigned int connect_supported:1; 2661 unsigned int p2p_go_supported:1; 2662 unsigned int p2p_client_supported:1; 2663 unsigned int p2p_concurrent:1; 2664 unsigned int p2p_multichan_concurrent:1; 2665}; 2666 2667 2668static unsigned int probe_resp_offload_support(int supp_protocols) 2669{ 2670 unsigned int prot = 0; 2671 2672 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) 2673 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; 2674 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) 2675 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; 2676 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) 2677 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; 2678 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) 2679 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; 2680 2681 return prot; 2682} 2683 2684 2685static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, 2686 struct nlattr *tb) 2687{ 2688 struct nlattr *nl_mode; 2689 int i; 2690 2691 if (tb == NULL) 2692 return; 2693 2694 nla_for_each_nested(nl_mode, tb, i) { 2695 switch (nla_type(nl_mode)) { 2696 case NL80211_IFTYPE_AP: 2697 info->capa->flags |= WPA_DRIVER_FLAGS_AP; 2698 break; 2699 case NL80211_IFTYPE_ADHOC: 2700 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; 2701 break; 2702 case NL80211_IFTYPE_P2P_GO: 2703 info->p2p_go_supported = 1; 2704 break; 2705 case NL80211_IFTYPE_P2P_CLIENT: 2706 info->p2p_client_supported = 1; 2707 break; 2708 case NL80211_IFTYPE_MONITOR: 2709 info->monitor_supported = 1; 2710 break; 2711 } 2712 } 2713} 2714 2715 2716static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, 2717 struct nlattr *nl_combi) 2718{ 2719 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; 2720 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; 2721 struct nlattr *nl_limit, *nl_mode; 2722 int err, rem_limit, rem_mode; 2723 int combination_has_p2p = 0, combination_has_mgd = 0; 2724 static struct nla_policy 2725 iface_combination_policy[NUM_NL80211_IFACE_COMB] = { 2726 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, 2727 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, 2728 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, 2729 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, 2730 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, 2731 }, 2732 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { 2733 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, 2734 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, 2735 }; 2736 2737 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, 2738 nl_combi, iface_combination_policy); 2739 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || 2740 !tb_comb[NL80211_IFACE_COMB_MAXNUM] || 2741 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) 2742 return 0; /* broken combination */ 2743 2744 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) 2745 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; 2746 2747 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], 2748 rem_limit) { 2749 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, 2750 nl_limit, iface_limit_policy); 2751 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) 2752 return 0; /* broken combination */ 2753 2754 nla_for_each_nested(nl_mode, 2755 tb_limit[NL80211_IFACE_LIMIT_TYPES], 2756 rem_mode) { 2757 int ift = nla_type(nl_mode); 2758 if (ift == NL80211_IFTYPE_P2P_GO || 2759 ift == NL80211_IFTYPE_P2P_CLIENT) 2760 combination_has_p2p = 1; 2761 if (ift == NL80211_IFTYPE_STATION) 2762 combination_has_mgd = 1; 2763 } 2764 if (combination_has_p2p && combination_has_mgd) 2765 break; 2766 } 2767 2768 if (combination_has_p2p && combination_has_mgd) { 2769 info->p2p_concurrent = 1; 2770 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1) 2771 info->p2p_multichan_concurrent = 1; 2772 return 1; 2773 } 2774 2775 return 0; 2776} 2777 2778 2779static void wiphy_info_iface_comb(struct wiphy_info_data *info, 2780 struct nlattr *tb) 2781{ 2782 struct nlattr *nl_combi; 2783 int rem_combi; 2784 2785 if (tb == NULL) 2786 return; 2787 2788 nla_for_each_nested(nl_combi, tb, rem_combi) { 2789 if (wiphy_info_iface_comb_process(info, nl_combi) > 0) 2790 break; 2791 } 2792} 2793 2794 2795static void wiphy_info_supp_cmds(struct wiphy_info_data *info, 2796 struct nlattr *tb) 2797{ 2798 struct nlattr *nl_cmd; 2799 int i; 2800 2801 if (tb == NULL) 2802 return; 2803 2804 nla_for_each_nested(nl_cmd, tb, i) { 2805 switch (nla_get_u32(nl_cmd)) { 2806 case NL80211_CMD_AUTHENTICATE: 2807 info->auth_supported = 1; 2808 break; 2809 case NL80211_CMD_CONNECT: 2810 info->connect_supported = 1; 2811 break; 2812 case NL80211_CMD_START_SCHED_SCAN: 2813 info->capa->sched_scan_supported = 1; 2814 break; 2815 case NL80211_CMD_PROBE_CLIENT: 2816 info->poll_command_supported = 1; 2817 break; 2818 } 2819 } 2820} 2821 2822 2823static void wiphy_info_max_roc(struct wpa_driver_capa *capa, 2824 struct nlattr *tb) 2825{ 2826 if (tb) 2827 capa->max_remain_on_chan = nla_get_u32(tb); 2828} 2829 2830 2831static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, 2832 struct nlattr *ext_setup) 2833{ 2834 if (tdls == NULL) 2835 return; 2836 2837 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); 2838 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; 2839 2840 if (ext_setup) { 2841 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); 2842 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; 2843 } 2844} 2845 2846 2847static void wiphy_info_feature_flags(struct wiphy_info_data *info, 2848 struct nlattr *tb) 2849{ 2850 u32 flags; 2851 struct wpa_driver_capa *capa = info->capa; 2852 2853 if (tb == NULL) 2854 return; 2855 2856 flags = nla_get_u32(tb); 2857 2858 if (flags & NL80211_FEATURE_SK_TX_STATUS) 2859 info->data_tx_status = 1; 2860 2861 if (flags & NL80211_FEATURE_INACTIVITY_TIMER) 2862 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; 2863 2864 if (flags & NL80211_FEATURE_SAE) 2865 capa->flags |= WPA_DRIVER_FLAGS_SAE; 2866 2867 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) 2868 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; 2869} 2870 2871 2872static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, 2873 struct nlattr *tb) 2874{ 2875 u32 protocols; 2876 2877 if (tb == NULL) 2878 return; 2879 2880 protocols = nla_get_u32(tb); 2881 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " 2882 "mode"); 2883 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; 2884 capa->probe_resp_offloads = probe_resp_offload_support(protocols); 2885} 2886 2887 2888static int wiphy_info_handler(struct nl_msg *msg, void *arg) 2889{ 2890 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2891 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2892 struct wiphy_info_data *info = arg; 2893 struct wpa_driver_capa *capa = info->capa; 2894 struct wpa_driver_nl80211_data *drv = info->drv; 2895 2896 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2897 genlmsg_attrlen(gnlh, 0), NULL); 2898 2899 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) 2900 capa->max_scan_ssids = 2901 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); 2902 2903 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) 2904 capa->max_sched_scan_ssids = 2905 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); 2906 2907 if (tb[NL80211_ATTR_MAX_MATCH_SETS]) 2908 capa->max_match_sets = 2909 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); 2910 2911 if (tb[NL80211_ATTR_MAC_ACL_MAX]) 2912 capa->max_acl_mac_addrs = 2913 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); 2914 2915 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); 2916 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); 2917 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); 2918 2919 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { 2920 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " 2921 "off-channel TX"); 2922 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 2923 } 2924 2925 if (tb[NL80211_ATTR_ROAM_SUPPORT]) { 2926 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); 2927 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 2928 } 2929 2930 wiphy_info_max_roc(capa, 2931 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); 2932 2933 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) 2934 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; 2935 2936 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], 2937 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); 2938 2939 if (tb[NL80211_ATTR_DEVICE_AP_SME]) 2940 info->device_ap_sme = 1; 2941 2942 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); 2943 wiphy_info_probe_resp_offload(capa, 2944 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); 2945 2946 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && 2947 drv->extended_capa == NULL) { 2948 drv->extended_capa = 2949 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2950 if (drv->extended_capa) { 2951 os_memcpy(drv->extended_capa, 2952 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2953 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2954 drv->extended_capa_len = 2955 nla_len(tb[NL80211_ATTR_EXT_CAPA]); 2956 } 2957 drv->extended_capa_mask = 2958 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2959 if (drv->extended_capa_mask) { 2960 os_memcpy(drv->extended_capa_mask, 2961 nla_data(tb[NL80211_ATTR_EXT_CAPA]), 2962 nla_len(tb[NL80211_ATTR_EXT_CAPA])); 2963 } else { 2964 os_free(drv->extended_capa); 2965 drv->extended_capa = NULL; 2966 drv->extended_capa_len = 0; 2967 } 2968 } 2969 2970 return NL_SKIP; 2971} 2972 2973 2974static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, 2975 struct wiphy_info_data *info) 2976{ 2977 u32 feat; 2978 struct nl_msg *msg; 2979 2980 os_memset(info, 0, sizeof(*info)); 2981 info->capa = &drv->capa; 2982 info->drv = drv; 2983 2984 msg = nlmsg_alloc(); 2985 if (!msg) 2986 return -1; 2987 2988 feat = get_nl80211_protocol_features(drv); 2989 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 2990 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 2991 else 2992 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 2993 2994 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 2995 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex); 2996 2997 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) 2998 return -1; 2999 3000 if (info->auth_supported) 3001 drv->capa.flags |= WPA_DRIVER_FLAGS_SME; 3002 else if (!info->connect_supported) { 3003 wpa_printf(MSG_INFO, "nl80211: Driver does not support " 3004 "authentication/association or connect commands"); 3005 info->error = 1; 3006 } 3007 3008 if (info->p2p_go_supported && info->p2p_client_supported) 3009 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; 3010 if (info->p2p_concurrent) { 3011 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 3012 "interface (driver advertised support)"); 3013 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 3014 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 3015 } 3016 if (info->p2p_multichan_concurrent) { 3017 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " 3018 "concurrent (driver advertised support)"); 3019 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 3020 } 3021 3022 /* default to 5000 since early versions of mac80211 don't set it */ 3023 if (!drv->capa.max_remain_on_chan) 3024 drv->capa.max_remain_on_chan = 5000; 3025 3026 return 0; 3027nla_put_failure: 3028 nlmsg_free(msg); 3029 return -1; 3030} 3031 3032 3033static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) 3034{ 3035 struct wiphy_info_data info; 3036 if (wpa_driver_nl80211_get_info(drv, &info)) 3037 return -1; 3038 3039 if (info.error) 3040 return -1; 3041 3042 drv->has_capability = 1; 3043 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ 3044 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | 3045 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 3046 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 3047 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; 3048 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | 3049 WPA_DRIVER_CAPA_ENC_WEP104 | 3050 WPA_DRIVER_CAPA_ENC_TKIP | 3051 WPA_DRIVER_CAPA_ENC_CCMP; 3052 drv->capa.auth = WPA_DRIVER_AUTH_OPEN | 3053 WPA_DRIVER_AUTH_SHARED | 3054 WPA_DRIVER_AUTH_LEAP; 3055 3056 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; 3057 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; 3058 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3059 3060 if (!info.device_ap_sme) { 3061 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; 3062 3063 /* 3064 * No AP SME is currently assumed to also indicate no AP MLME 3065 * in the driver/firmware. 3066 */ 3067 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; 3068 } 3069 3070 drv->device_ap_sme = info.device_ap_sme; 3071 drv->poll_command_supported = info.poll_command_supported; 3072 drv->data_tx_status = info.data_tx_status; 3073 3074#ifdef ANDROID_P2P 3075 if(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) { 3076 /* Driver is new enough to support monitorless mode*/ 3077 wpa_printf(MSG_DEBUG, "nl80211: Driver is new " 3078 "enough to support monitor-less mode"); 3079 drv->use_monitor = 0; 3080 } 3081#else 3082 /* 3083 * If poll command and tx status are supported, mac80211 is new enough 3084 * to have everything we need to not need monitor interfaces. 3085 */ 3086 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; 3087#endif 3088 3089 if (drv->device_ap_sme && drv->use_monitor) { 3090 /* 3091 * Non-mac80211 drivers may not support monitor interface. 3092 * Make sure we do not get stuck with incorrect capability here 3093 * by explicitly testing this. 3094 */ 3095 if (!info.monitor_supported) { 3096 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " 3097 "with device_ap_sme since no monitor mode " 3098 "support detected"); 3099 drv->use_monitor = 0; 3100 } 3101 } 3102 3103 /* 3104 * If we aren't going to use monitor interfaces, but the 3105 * driver doesn't support data TX status, we won't get TX 3106 * status for EAPOL frames. 3107 */ 3108 if (!drv->use_monitor && !info.data_tx_status) 3109 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3110 3111 return 0; 3112} 3113 3114 3115#ifdef ANDROID 3116static int android_genl_ctrl_resolve(struct nl_handle *handle, 3117 const char *name) 3118{ 3119 /* 3120 * Android ICS has very minimal genl_ctrl_resolve() implementation, so 3121 * need to work around that. 3122 */ 3123 struct nl_cache *cache = NULL; 3124 struct genl_family *nl80211 = NULL; 3125 int id = -1; 3126 3127 if (genl_ctrl_alloc_cache(handle, &cache) < 0) { 3128 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " 3129 "netlink cache"); 3130 goto fail; 3131 } 3132 3133 nl80211 = genl_ctrl_search_by_name(cache, name); 3134 if (nl80211 == NULL) 3135 goto fail; 3136 3137 id = genl_family_get_id(nl80211); 3138 3139fail: 3140 if (nl80211) 3141 genl_family_put(nl80211); 3142 if (cache) 3143 nl_cache_free(cache); 3144 3145 return id; 3146} 3147#define genl_ctrl_resolve android_genl_ctrl_resolve 3148#endif /* ANDROID */ 3149 3150 3151static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 3152{ 3153 int ret; 3154 3155 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3156 if (global->nl_cb == NULL) { 3157 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 3158 "callbacks"); 3159 return -1; 3160 } 3161 3162 global->nl = nl_create_handle(global->nl_cb, "nl"); 3163 if (global->nl == NULL) 3164 goto err; 3165 3166 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 3167 if (global->nl80211_id < 0) { 3168 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 3169 "found"); 3170 goto err; 3171 } 3172 3173 global->nl_event = nl_create_handle(global->nl_cb, "event"); 3174 if (global->nl_event == NULL) 3175 goto err; 3176 3177 ret = nl_get_multicast_id(global, "nl80211", "scan"); 3178 if (ret >= 0) 3179 ret = nl_socket_add_membership(global->nl_event, ret); 3180 if (ret < 0) { 3181 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3182 "membership for scan events: %d (%s)", 3183 ret, strerror(-ret)); 3184 goto err; 3185 } 3186 3187 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 3188 if (ret >= 0) 3189 ret = nl_socket_add_membership(global->nl_event, ret); 3190 if (ret < 0) { 3191 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 3192 "membership for mlme events: %d (%s)", 3193 ret, strerror(-ret)); 3194 goto err; 3195 } 3196 3197 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 3198 if (ret >= 0) 3199 ret = nl_socket_add_membership(global->nl_event, ret); 3200 if (ret < 0) { 3201 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 3202 "membership for regulatory events: %d (%s)", 3203 ret, strerror(-ret)); 3204 /* Continue without regulatory events */ 3205 } 3206 3207 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3208 no_seq_check, NULL); 3209 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3210 process_global_event, global); 3211 3212 eloop_register_read_sock(nl_socket_get_fd(global->nl_event), 3213 wpa_driver_nl80211_event_receive, 3214 global->nl_cb, global->nl_event); 3215 3216 return 0; 3217 3218err: 3219 nl_destroy_handles(&global->nl_event); 3220 nl_destroy_handles(&global->nl); 3221 nl_cb_put(global->nl_cb); 3222 global->nl_cb = NULL; 3223 return -1; 3224} 3225 3226 3227static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) 3228{ 3229 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3230 if (!drv->nl_cb) { 3231 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); 3232 return -1; 3233 } 3234 3235 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3236 no_seq_check, NULL); 3237 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3238 process_drv_event, drv); 3239 3240 return 0; 3241} 3242 3243 3244static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 3245{ 3246 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 3247 /* 3248 * This may be for any interface; use ifdown event to disable 3249 * interface. 3250 */ 3251} 3252 3253 3254static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 3255{ 3256 struct wpa_driver_nl80211_data *drv = ctx; 3257 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 3258 if (linux_set_iface_flags(drv->global->ioctl_sock, 3259 drv->first_bss.ifname, 1)) { 3260 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 3261 "after rfkill unblock"); 3262 return; 3263 } 3264 /* rtnetlink ifup handler will report interface as enabled */ 3265} 3266 3267 3268static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv) 3269{ 3270 /* Find phy (radio) to which this interface belongs */ 3271 char buf[90], *pos; 3272 int f, rv; 3273 3274 drv->phyname[0] = '\0'; 3275 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name", 3276 drv->first_bss.ifname); 3277 f = open(buf, O_RDONLY); 3278 if (f < 0) { 3279 wpa_printf(MSG_DEBUG, "Could not open file %s: %s", 3280 buf, strerror(errno)); 3281 return; 3282 } 3283 3284 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1); 3285 close(f); 3286 if (rv < 0) { 3287 wpa_printf(MSG_DEBUG, "Could not read file %s: %s", 3288 buf, strerror(errno)); 3289 return; 3290 } 3291 3292 drv->phyname[rv] = '\0'; 3293 pos = os_strchr(drv->phyname, '\n'); 3294 if (pos) 3295 *pos = '\0'; 3296 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 3297 drv->first_bss.ifname, drv->phyname); 3298} 3299 3300 3301static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 3302 void *eloop_ctx, 3303 void *handle) 3304{ 3305 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3306 u8 data[2048]; 3307 struct msghdr msg; 3308 struct iovec entry; 3309 u8 control[512]; 3310 struct cmsghdr *cmsg; 3311 int res, found_ee = 0, found_wifi = 0, acked = 0; 3312 union wpa_event_data event; 3313 3314 memset(&msg, 0, sizeof(msg)); 3315 msg.msg_iov = &entry; 3316 msg.msg_iovlen = 1; 3317 entry.iov_base = data; 3318 entry.iov_len = sizeof(data); 3319 msg.msg_control = &control; 3320 msg.msg_controllen = sizeof(control); 3321 3322 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 3323 /* if error or not fitting 802.3 header, return */ 3324 if (res < 14) 3325 return; 3326 3327 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 3328 { 3329 if (cmsg->cmsg_level == SOL_SOCKET && 3330 cmsg->cmsg_type == SCM_WIFI_STATUS) { 3331 int *ack; 3332 3333 found_wifi = 1; 3334 ack = (void *)CMSG_DATA(cmsg); 3335 acked = *ack; 3336 } 3337 3338 if (cmsg->cmsg_level == SOL_PACKET && 3339 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 3340 struct sock_extended_err *err = 3341 (struct sock_extended_err *)CMSG_DATA(cmsg); 3342 3343 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 3344 found_ee = 1; 3345 } 3346 } 3347 3348 if (!found_ee || !found_wifi) 3349 return; 3350 3351 memset(&event, 0, sizeof(event)); 3352 event.eapol_tx_status.dst = data; 3353 event.eapol_tx_status.data = data + 14; 3354 event.eapol_tx_status.data_len = res - 14; 3355 event.eapol_tx_status.ack = acked; 3356 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 3357} 3358 3359 3360static int nl80211_init_bss(struct i802_bss *bss) 3361{ 3362 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 3363 if (!bss->nl_cb) 3364 return -1; 3365 3366 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 3367 no_seq_check, NULL); 3368 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 3369 process_bss_event, bss); 3370 3371 return 0; 3372} 3373 3374 3375static void nl80211_destroy_bss(struct i802_bss *bss) 3376{ 3377 nl_cb_put(bss->nl_cb); 3378 bss->nl_cb = NULL; 3379} 3380 3381 3382/** 3383 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 3384 * @ctx: context to be used when calling wpa_supplicant functions, 3385 * e.g., wpa_supplicant_event() 3386 * @ifname: interface name, e.g., wlan0 3387 * @global_priv: private driver global data from global_init() 3388 * Returns: Pointer to private data, %NULL on failure 3389 */ 3390static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 3391 void *global_priv) 3392{ 3393 struct wpa_driver_nl80211_data *drv; 3394 struct rfkill_config *rcfg; 3395 struct i802_bss *bss; 3396 3397 if (global_priv == NULL) 3398 return NULL; 3399 drv = os_zalloc(sizeof(*drv)); 3400 if (drv == NULL) 3401 return NULL; 3402 drv->global = global_priv; 3403 drv->ctx = ctx; 3404 bss = &drv->first_bss; 3405 bss->drv = drv; 3406 bss->ctx = ctx; 3407 3408 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 3409 drv->monitor_ifidx = -1; 3410 drv->monitor_sock = -1; 3411 drv->eapol_tx_sock = -1; 3412 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3413 3414 if (wpa_driver_nl80211_init_nl(drv)) { 3415 os_free(drv); 3416 return NULL; 3417 } 3418 3419 if (nl80211_init_bss(bss)) 3420 goto failed; 3421 3422 nl80211_get_phy_name(drv); 3423 3424 rcfg = os_zalloc(sizeof(*rcfg)); 3425 if (rcfg == NULL) 3426 goto failed; 3427 rcfg->ctx = drv; 3428 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); 3429 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 3430 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 3431 drv->rfkill = rfkill_init(rcfg); 3432 if (drv->rfkill == NULL) { 3433 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 3434 os_free(rcfg); 3435 } 3436 3437 if (wpa_driver_nl80211_finish_drv_init(drv)) 3438 goto failed; 3439 3440 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 3441 if (drv->eapol_tx_sock < 0) 3442 goto failed; 3443 3444 if (drv->data_tx_status) { 3445 int enabled = 1; 3446 3447 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 3448 &enabled, sizeof(enabled)) < 0) { 3449 wpa_printf(MSG_DEBUG, 3450 "nl80211: wifi status sockopt failed\n"); 3451 drv->data_tx_status = 0; 3452 if (!drv->use_monitor) 3453 drv->capa.flags &= 3454 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 3455 } else { 3456 eloop_register_read_sock(drv->eapol_tx_sock, 3457 wpa_driver_nl80211_handle_eapol_tx_status, 3458 drv, NULL); 3459 } 3460 } 3461 3462 if (drv->global) { 3463 dl_list_add(&drv->global->interfaces, &drv->list); 3464 drv->in_interface_list = 1; 3465 } 3466 3467 return bss; 3468 3469failed: 3470 wpa_driver_nl80211_deinit(bss); 3471 return NULL; 3472} 3473 3474 3475static int nl80211_register_frame(struct i802_bss *bss, 3476 struct nl_handle *nl_handle, 3477 u16 type, const u8 *match, size_t match_len) 3478{ 3479 struct wpa_driver_nl80211_data *drv = bss->drv; 3480 struct nl_msg *msg; 3481 int ret = -1; 3482 3483 msg = nlmsg_alloc(); 3484 if (!msg) 3485 return -1; 3486 3487 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p", 3488 type, nl_handle); 3489 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3490 match, match_len); 3491 3492 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); 3493 3494 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3495 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); 3496 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); 3497 3498 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 3499 msg = NULL; 3500 if (ret) { 3501 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 3502 "failed (type=%u): ret=%d (%s)", 3503 type, ret, strerror(-ret)); 3504 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 3505 match, match_len); 3506 goto nla_put_failure; 3507 } 3508 ret = 0; 3509nla_put_failure: 3510 nlmsg_free(msg); 3511 return ret; 3512} 3513 3514 3515static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 3516{ 3517 struct wpa_driver_nl80211_data *drv = bss->drv; 3518 3519 if (bss->nl_mgmt) { 3520 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 3521 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 3522 return -1; 3523 } 3524 3525 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); 3526 if (bss->nl_mgmt == NULL) 3527 return -1; 3528 3529 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt), 3530 wpa_driver_nl80211_event_receive, bss->nl_cb, 3531 bss->nl_mgmt); 3532 3533 return 0; 3534} 3535 3536 3537static int nl80211_register_action_frame(struct i802_bss *bss, 3538 const u8 *match, size_t match_len) 3539{ 3540 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 3541 return nl80211_register_frame(bss, bss->nl_mgmt, 3542 type, match, match_len); 3543} 3544 3545 3546static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 3547{ 3548 struct wpa_driver_nl80211_data *drv = bss->drv; 3549 3550 if (nl80211_alloc_mgmt_handle(bss)) 3551 return -1; 3552 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 3553 "handle %p", bss->nl_mgmt); 3554 3555#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 3556 /* GAS Initial Request */ 3557 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 3558 return -1; 3559 /* GAS Initial Response */ 3560 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 3561 return -1; 3562 /* GAS Comeback Request */ 3563 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 3564 return -1; 3565 /* GAS Comeback Response */ 3566 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 3567 return -1; 3568#endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 3569#ifdef CONFIG_P2P 3570 /* P2P Public Action */ 3571 if (nl80211_register_action_frame(bss, 3572 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 3573 6) < 0) 3574 return -1; 3575 /* P2P Action */ 3576 if (nl80211_register_action_frame(bss, 3577 (u8 *) "\x7f\x50\x6f\x9a\x09", 3578 5) < 0) 3579 return -1; 3580#endif /* CONFIG_P2P */ 3581#ifdef CONFIG_IEEE80211W 3582 /* SA Query Response */ 3583 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 3584 return -1; 3585#endif /* CONFIG_IEEE80211W */ 3586#ifdef CONFIG_TDLS 3587 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 3588 /* TDLS Discovery Response */ 3589 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 3590 0) 3591 return -1; 3592 } 3593#endif /* CONFIG_TDLS */ 3594 3595 /* FT Action frames */ 3596 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 3597 return -1; 3598 else 3599 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 3600 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 3601 3602 /* WNM - BSS Transition Management Request */ 3603 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 3604 return -1; 3605 /* WNM-Sleep Mode Response */ 3606 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 3607 return -1; 3608 3609 return 0; 3610} 3611 3612 3613static int nl80211_register_spurious_class3(struct i802_bss *bss) 3614{ 3615 struct wpa_driver_nl80211_data *drv = bss->drv; 3616 struct nl_msg *msg; 3617 int ret = -1; 3618 3619 msg = nlmsg_alloc(); 3620 if (!msg) 3621 return -1; 3622 3623 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); 3624 3625 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 3626 3627 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); 3628 msg = NULL; 3629 if (ret) { 3630 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 3631 "failed: ret=%d (%s)", 3632 ret, strerror(-ret)); 3633 goto nla_put_failure; 3634 } 3635 ret = 0; 3636nla_put_failure: 3637 nlmsg_free(msg); 3638 return ret; 3639} 3640 3641 3642static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 3643{ 3644 static const int stypes[] = { 3645 WLAN_FC_STYPE_AUTH, 3646 WLAN_FC_STYPE_ASSOC_REQ, 3647 WLAN_FC_STYPE_REASSOC_REQ, 3648 WLAN_FC_STYPE_DISASSOC, 3649 WLAN_FC_STYPE_DEAUTH, 3650 WLAN_FC_STYPE_ACTION, 3651 WLAN_FC_STYPE_PROBE_REQ, 3652/* Beacon doesn't work as mac80211 doesn't currently allow 3653 * it, but it wouldn't really be the right thing anyway as 3654 * it isn't per interface ... maybe just dump the scan 3655 * results periodically for OLBC? 3656 */ 3657// WLAN_FC_STYPE_BEACON, 3658 }; 3659 unsigned int i; 3660 3661 if (nl80211_alloc_mgmt_handle(bss)) 3662 return -1; 3663 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3664 "handle %p", bss->nl_mgmt); 3665 3666 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) { 3667 if (nl80211_register_frame(bss, bss->nl_mgmt, 3668 (WLAN_FC_TYPE_MGMT << 2) | 3669 (stypes[i] << 4), 3670 NULL, 0) < 0) { 3671 goto out_err; 3672 } 3673 } 3674 3675 if (nl80211_register_spurious_class3(bss)) 3676 goto out_err; 3677 3678 if (nl80211_get_wiphy_data_ap(bss) == NULL) 3679 goto out_err; 3680 3681 return 0; 3682 3683out_err: 3684 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3685 nl_destroy_handles(&bss->nl_mgmt); 3686 return -1; 3687} 3688 3689 3690static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 3691{ 3692 if (nl80211_alloc_mgmt_handle(bss)) 3693 return -1; 3694 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 3695 "handle %p (device SME)", bss->nl_mgmt); 3696 3697 if (nl80211_register_frame(bss, bss->nl_mgmt, 3698 (WLAN_FC_TYPE_MGMT << 2) | 3699 (WLAN_FC_STYPE_ACTION << 4), 3700 NULL, 0) < 0) 3701 goto out_err; 3702 3703 return 0; 3704 3705out_err: 3706 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3707 nl_destroy_handles(&bss->nl_mgmt); 3708 return -1; 3709} 3710 3711 3712static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 3713{ 3714 if (bss->nl_mgmt == NULL) 3715 return; 3716 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 3717 "(%s)", bss->nl_mgmt, reason); 3718 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt)); 3719 nl_destroy_handles(&bss->nl_mgmt); 3720 3721 nl80211_put_wiphy_data_ap(bss); 3722} 3723 3724 3725static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 3726{ 3727 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 3728} 3729 3730 3731static int 3732wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) 3733{ 3734 struct i802_bss *bss = &drv->first_bss; 3735 int send_rfkill_event = 0; 3736 3737 drv->ifindex = if_nametoindex(bss->ifname); 3738 drv->first_bss.ifindex = drv->ifindex; 3739 3740#ifndef HOSTAPD 3741 /* 3742 * Make sure the interface starts up in station mode unless this is a 3743 * dynamically added interface (e.g., P2P) that was already configured 3744 * with proper iftype. 3745 */ 3746 if (drv->ifindex != drv->global->if_add_ifindex && 3747 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) { 3748 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to " 3749 "use managed mode"); 3750 return -1; 3751 } 3752 3753 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 3754 if (rfkill_is_blocked(drv->rfkill)) { 3755 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 3756 "interface '%s' due to rfkill", 3757 bss->ifname); 3758 drv->if_disabled = 1; 3759 send_rfkill_event = 1; 3760 } else { 3761 wpa_printf(MSG_ERROR, "nl80211: Could not set " 3762 "interface '%s' UP", bss->ifname); 3763 return -1; 3764 } 3765 } 3766 3767 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 3768 1, IF_OPER_DORMANT); 3769#endif /* HOSTAPD */ 3770 3771 if (wpa_driver_nl80211_capa(drv)) 3772 return -1; 3773 3774 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 3775 bss->addr)) 3776 return -1; 3777 3778 if (send_rfkill_event) { 3779 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 3780 drv, drv->ctx); 3781 } 3782 3783 return 0; 3784} 3785 3786 3787static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 3788{ 3789 struct nl_msg *msg; 3790 3791 msg = nlmsg_alloc(); 3792 if (!msg) 3793 return -ENOMEM; 3794 3795 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); 3796 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 3797 3798 return send_and_recv_msgs(drv, msg, NULL, NULL); 3799 nla_put_failure: 3800 nlmsg_free(msg); 3801 return -ENOBUFS; 3802} 3803 3804 3805/** 3806 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 3807 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 3808 * 3809 * Shut down driver interface and processing of driver events. Free 3810 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 3811 */ 3812static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 3813{ 3814 struct wpa_driver_nl80211_data *drv = bss->drv; 3815 3816 bss->in_deinit = 1; 3817 if (drv->data_tx_status) 3818 eloop_unregister_read_sock(drv->eapol_tx_sock); 3819 if (drv->eapol_tx_sock >= 0) 3820 close(drv->eapol_tx_sock); 3821 3822 if (bss->nl_preq) 3823 wpa_driver_nl80211_probe_req_report(bss, 0); 3824 if (bss->added_if_into_bridge) { 3825 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 3826 bss->ifname) < 0) 3827 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3828 "interface %s from bridge %s: %s", 3829 bss->ifname, bss->brname, strerror(errno)); 3830 } 3831 if (bss->added_bridge) { 3832 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 3833 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 3834 "bridge %s: %s", 3835 bss->brname, strerror(errno)); 3836 } 3837 3838 nl80211_remove_monitor_interface(drv); 3839 3840 if (is_ap_interface(drv->nlmode)) 3841 wpa_driver_nl80211_del_beacon(drv); 3842 3843#ifdef HOSTAPD 3844 if (drv->last_freq_ht) { 3845 /* Clear HT flags from the driver */ 3846 struct hostapd_freq_params freq; 3847 os_memset(&freq, 0, sizeof(freq)); 3848 freq.freq = drv->last_freq; 3849 wpa_driver_nl80211_set_freq(bss, &freq); 3850 } 3851 3852 if (drv->eapol_sock >= 0) { 3853 eloop_unregister_read_sock(drv->eapol_sock); 3854 close(drv->eapol_sock); 3855 } 3856 3857 if (drv->if_indices != drv->default_if_indices) 3858 os_free(drv->if_indices); 3859#endif /* HOSTAPD */ 3860 3861 if (drv->disabled_11b_rates) 3862 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 3863 3864 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 3865 IF_OPER_UP); 3866 rfkill_deinit(drv->rfkill); 3867 3868 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 3869 3870 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); 3871 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); 3872 nl80211_mgmt_unsubscribe(bss, "deinit"); 3873 3874 nl_cb_put(drv->nl_cb); 3875 3876 nl80211_destroy_bss(&drv->first_bss); 3877 3878 os_free(drv->filter_ssids); 3879 3880 os_free(drv->auth_ie); 3881 3882 if (drv->in_interface_list) 3883 dl_list_del(&drv->list); 3884 3885 os_free(drv->extended_capa); 3886 os_free(drv->extended_capa_mask); 3887 os_free(drv); 3888} 3889 3890 3891/** 3892 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion 3893 * @eloop_ctx: Driver private data 3894 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() 3895 * 3896 * This function can be used as registered timeout when starting a scan to 3897 * generate a scan completed event if the driver does not report this. 3898 */ 3899static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) 3900{ 3901 struct wpa_driver_nl80211_data *drv = eloop_ctx; 3902 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { 3903 wpa_driver_nl80211_set_mode(&drv->first_bss, 3904 drv->ap_scan_as_station); 3905 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 3906 } 3907 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); 3908 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); 3909} 3910 3911 3912static struct nl_msg * 3913nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, 3914 struct wpa_driver_scan_params *params) 3915{ 3916 struct nl_msg *msg; 3917 size_t i; 3918 3919 msg = nlmsg_alloc(); 3920 if (!msg) 3921 return NULL; 3922 3923 nl80211_cmd(drv, msg, 0, cmd); 3924 3925 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0) 3926 goto fail; 3927 3928 if (params->num_ssids) { 3929 struct nlattr *ssids; 3930 3931 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); 3932 if (ssids == NULL) 3933 goto fail; 3934 for (i = 0; i < params->num_ssids; i++) { 3935 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", 3936 params->ssids[i].ssid, 3937 params->ssids[i].ssid_len); 3938 if (nla_put(msg, i + 1, params->ssids[i].ssid_len, 3939 params->ssids[i].ssid) < 0) 3940 goto fail; 3941 } 3942 nla_nest_end(msg, ssids); 3943 } 3944 3945 if (params->extra_ies) { 3946 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", 3947 params->extra_ies, params->extra_ies_len); 3948 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, 3949 params->extra_ies) < 0) 3950 goto fail; 3951 } 3952 3953 if (params->freqs) { 3954 struct nlattr *freqs; 3955 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); 3956 if (freqs == NULL) 3957 goto fail; 3958 for (i = 0; params->freqs[i]; i++) { 3959 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " 3960 "MHz", params->freqs[i]); 3961 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) 3962 goto fail; 3963 } 3964 nla_nest_end(msg, freqs); 3965 } 3966 3967 os_free(drv->filter_ssids); 3968 drv->filter_ssids = params->filter_ssids; 3969 params->filter_ssids = NULL; 3970 drv->num_filter_ssids = params->num_filter_ssids; 3971 3972 return msg; 3973 3974fail: 3975 nlmsg_free(msg); 3976 return NULL; 3977} 3978 3979 3980/** 3981 * wpa_driver_nl80211_scan - Request the driver to initiate scan 3982 * @bss: Pointer to private driver data from wpa_driver_nl80211_init() 3983 * @params: Scan parameters 3984 * Returns: 0 on success, -1 on failure 3985 */ 3986static int wpa_driver_nl80211_scan(struct i802_bss *bss, 3987 struct wpa_driver_scan_params *params) 3988{ 3989 struct wpa_driver_nl80211_data *drv = bss->drv; 3990 int ret = -1, timeout; 3991 struct nl_msg *msg = NULL; 3992 3993 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); 3994 drv->scan_for_auth = 0; 3995 3996 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params); 3997 if (!msg) 3998 return -1; 3999 4000 if (params->p2p_probe) { 4001 struct nlattr *rates; 4002 4003 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); 4004 4005 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); 4006 if (rates == NULL) 4007 goto nla_put_failure; 4008 4009 /* 4010 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates 4011 * by masking out everything else apart from the OFDM rates 6, 4012 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz 4013 * rates are left enabled. 4014 */ 4015 NLA_PUT(msg, NL80211_BAND_2GHZ, 8, 4016 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 4017 nla_nest_end(msg, rates); 4018 4019 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 4020 } 4021 4022 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4023 msg = NULL; 4024 if (ret) { 4025 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " 4026 "(%s)", ret, strerror(-ret)); 4027#ifdef HOSTAPD 4028 if (is_ap_interface(drv->nlmode)) { 4029 /* 4030 * mac80211 does not allow scan requests in AP mode, so 4031 * try to do this in station mode. 4032 */ 4033 if (wpa_driver_nl80211_set_mode( 4034 bss, NL80211_IFTYPE_STATION)) 4035 goto nla_put_failure; 4036 4037 if (wpa_driver_nl80211_scan(bss, params)) { 4038 wpa_driver_nl80211_set_mode(bss, drv->nlmode); 4039 goto nla_put_failure; 4040 } 4041 4042 /* Restore AP mode when processing scan results */ 4043 drv->ap_scan_as_station = drv->nlmode; 4044 ret = 0; 4045 } else 4046 goto nla_put_failure; 4047#else /* HOSTAPD */ 4048 goto nla_put_failure; 4049#endif /* HOSTAPD */ 4050 } 4051 4052 /* Not all drivers generate "scan completed" wireless event, so try to 4053 * read results after a timeout. */ 4054 timeout = 10; 4055 if (drv->scan_complete_events) { 4056 /* 4057 * The driver seems to deliver events to notify when scan is 4058 * complete, so use longer timeout to avoid race conditions 4059 * with scanning and following association request. 4060 */ 4061 timeout = 30; 4062 } 4063 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " 4064 "seconds", ret, timeout); 4065 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 4066 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, 4067 drv, drv->ctx); 4068 4069nla_put_failure: 4070 nlmsg_free(msg); 4071 return ret; 4072} 4073 4074 4075/** 4076 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan 4077 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4078 * @params: Scan parameters 4079 * @interval: Interval between scan cycles in milliseconds 4080 * Returns: 0 on success, -1 on failure or if not supported 4081 */ 4082static int wpa_driver_nl80211_sched_scan(void *priv, 4083 struct wpa_driver_scan_params *params, 4084 u32 interval) 4085{ 4086 struct i802_bss *bss = priv; 4087 struct wpa_driver_nl80211_data *drv = bss->drv; 4088 int ret = -1; 4089 struct nl_msg *msg; 4090 size_t i; 4091 4092 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); 4093 4094#ifdef ANDROID 4095 if (!drv->capa.sched_scan_supported) 4096 return android_pno_start(bss, params); 4097#endif /* ANDROID */ 4098 4099 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params); 4100 if (!msg) 4101 goto nla_put_failure; 4102 4103 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); 4104 4105 if ((drv->num_filter_ssids && 4106 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || 4107 params->filter_rssi) { 4108 struct nlattr *match_sets; 4109 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); 4110 if (match_sets == NULL) 4111 goto nla_put_failure; 4112 4113 for (i = 0; i < drv->num_filter_ssids; i++) { 4114 struct nlattr *match_set_ssid; 4115 wpa_hexdump_ascii(MSG_MSGDUMP, 4116 "nl80211: Sched scan filter SSID", 4117 drv->filter_ssids[i].ssid, 4118 drv->filter_ssids[i].ssid_len); 4119 4120 match_set_ssid = nla_nest_start(msg, i + 1); 4121 if (match_set_ssid == NULL) 4122 goto nla_put_failure; 4123 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, 4124 drv->filter_ssids[i].ssid_len, 4125 drv->filter_ssids[i].ssid); 4126 4127 nla_nest_end(msg, match_set_ssid); 4128 } 4129 4130 if (params->filter_rssi) { 4131 struct nlattr *match_set_rssi; 4132 match_set_rssi = nla_nest_start(msg, 0); 4133 if (match_set_rssi == NULL) 4134 goto nla_put_failure; 4135 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, 4136 params->filter_rssi); 4137 wpa_printf(MSG_MSGDUMP, 4138 "nl80211: Sched scan RSSI filter %d dBm", 4139 params->filter_rssi); 4140 nla_nest_end(msg, match_set_rssi); 4141 } 4142 4143 nla_nest_end(msg, match_sets); 4144 } 4145 4146 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4147 4148 /* TODO: if we get an error here, we should fall back to normal scan */ 4149 4150 msg = NULL; 4151 if (ret) { 4152 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " 4153 "ret=%d (%s)", ret, strerror(-ret)); 4154 goto nla_put_failure; 4155 } 4156 4157 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " 4158 "scan interval %d msec", ret, interval); 4159 4160nla_put_failure: 4161 nlmsg_free(msg); 4162 return ret; 4163} 4164 4165 4166/** 4167 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan 4168 * @priv: Pointer to private driver data from wpa_driver_nl80211_init() 4169 * Returns: 0 on success, -1 on failure or if not supported 4170 */ 4171static int wpa_driver_nl80211_stop_sched_scan(void *priv) 4172{ 4173 struct i802_bss *bss = priv; 4174 struct wpa_driver_nl80211_data *drv = bss->drv; 4175 int ret = 0; 4176 struct nl_msg *msg; 4177 4178#ifdef ANDROID 4179 if (!drv->capa.sched_scan_supported) 4180 return android_pno_stop(bss); 4181#endif /* ANDROID */ 4182 4183 msg = nlmsg_alloc(); 4184 if (!msg) 4185 return -1; 4186 4187 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); 4188 4189 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4190 4191 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4192 msg = NULL; 4193 if (ret) { 4194 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " 4195 "ret=%d (%s)", ret, strerror(-ret)); 4196 goto nla_put_failure; 4197 } 4198 4199 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); 4200 4201nla_put_failure: 4202 nlmsg_free(msg); 4203 return ret; 4204} 4205 4206 4207static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) 4208{ 4209 const u8 *end, *pos; 4210 4211 if (ies == NULL) 4212 return NULL; 4213 4214 pos = ies; 4215 end = ies + ies_len; 4216 4217 while (pos + 1 < end) { 4218 if (pos + 2 + pos[1] > end) 4219 break; 4220 if (pos[0] == ie) 4221 return pos; 4222 pos += 2 + pos[1]; 4223 } 4224 4225 return NULL; 4226} 4227 4228 4229static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, 4230 const u8 *ie, size_t ie_len) 4231{ 4232 const u8 *ssid; 4233 size_t i; 4234 4235 if (drv->filter_ssids == NULL) 4236 return 0; 4237 4238 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); 4239 if (ssid == NULL) 4240 return 1; 4241 4242 for (i = 0; i < drv->num_filter_ssids; i++) { 4243 if (ssid[1] == drv->filter_ssids[i].ssid_len && 4244 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == 4245 0) 4246 return 0; 4247 } 4248 4249 return 1; 4250} 4251 4252 4253static int bss_info_handler(struct nl_msg *msg, void *arg) 4254{ 4255 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 4256 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 4257 struct nlattr *bss[NL80211_BSS_MAX + 1]; 4258 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { 4259 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, 4260 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, 4261 [NL80211_BSS_TSF] = { .type = NLA_U64 }, 4262 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, 4263 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, 4264 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, 4265 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, 4266 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, 4267 [NL80211_BSS_STATUS] = { .type = NLA_U32 }, 4268 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, 4269 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, 4270 }; 4271 struct nl80211_bss_info_arg *_arg = arg; 4272 struct wpa_scan_results *res = _arg->res; 4273 struct wpa_scan_res **tmp; 4274 struct wpa_scan_res *r; 4275 const u8 *ie, *beacon_ie; 4276 size_t ie_len, beacon_ie_len; 4277 u8 *pos; 4278 size_t i; 4279 4280 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 4281 genlmsg_attrlen(gnlh, 0), NULL); 4282 if (!tb[NL80211_ATTR_BSS]) 4283 return NL_SKIP; 4284 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], 4285 bss_policy)) 4286 return NL_SKIP; 4287 if (bss[NL80211_BSS_STATUS]) { 4288 enum nl80211_bss_status status; 4289 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4290 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4291 bss[NL80211_BSS_FREQUENCY]) { 4292 _arg->assoc_freq = 4293 nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4294 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", 4295 _arg->assoc_freq); 4296 } 4297 if (status == NL80211_BSS_STATUS_ASSOCIATED && 4298 bss[NL80211_BSS_BSSID]) { 4299 os_memcpy(_arg->assoc_bssid, 4300 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); 4301 wpa_printf(MSG_DEBUG, "nl80211: Associated with " 4302 MACSTR, MAC2STR(_arg->assoc_bssid)); 4303 } 4304 } 4305 if (!res) 4306 return NL_SKIP; 4307 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { 4308 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4309 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); 4310 } else { 4311 ie = NULL; 4312 ie_len = 0; 4313 } 4314 if (bss[NL80211_BSS_BEACON_IES]) { 4315 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); 4316 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); 4317 } else { 4318 beacon_ie = NULL; 4319 beacon_ie_len = 0; 4320 } 4321 4322 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, 4323 ie ? ie_len : beacon_ie_len)) 4324 return NL_SKIP; 4325 4326 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); 4327 if (r == NULL) 4328 return NL_SKIP; 4329 if (bss[NL80211_BSS_BSSID]) 4330 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), 4331 ETH_ALEN); 4332 if (bss[NL80211_BSS_FREQUENCY]) 4333 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); 4334 if (bss[NL80211_BSS_BEACON_INTERVAL]) 4335 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); 4336 if (bss[NL80211_BSS_CAPABILITY]) 4337 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); 4338 r->flags |= WPA_SCAN_NOISE_INVALID; 4339 if (bss[NL80211_BSS_SIGNAL_MBM]) { 4340 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); 4341 r->level /= 100; /* mBm to dBm */ 4342 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; 4343 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { 4344 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); 4345 r->flags |= WPA_SCAN_QUAL_INVALID; 4346 } else 4347 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; 4348 if (bss[NL80211_BSS_TSF]) 4349 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); 4350 if (bss[NL80211_BSS_SEEN_MS_AGO]) 4351 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); 4352 r->ie_len = ie_len; 4353 pos = (u8 *) (r + 1); 4354 if (ie) { 4355 os_memcpy(pos, ie, ie_len); 4356 pos += ie_len; 4357 } 4358 r->beacon_ie_len = beacon_ie_len; 4359 if (beacon_ie) 4360 os_memcpy(pos, beacon_ie, beacon_ie_len); 4361 4362 if (bss[NL80211_BSS_STATUS]) { 4363 enum nl80211_bss_status status; 4364 status = nla_get_u32(bss[NL80211_BSS_STATUS]); 4365 switch (status) { 4366 case NL80211_BSS_STATUS_AUTHENTICATED: 4367 r->flags |= WPA_SCAN_AUTHENTICATED; 4368 break; 4369 case NL80211_BSS_STATUS_ASSOCIATED: 4370 r->flags |= WPA_SCAN_ASSOCIATED; 4371 break; 4372 default: 4373 break; 4374 } 4375 } 4376 4377 /* 4378 * cfg80211 maintains separate BSS table entries for APs if the same 4379 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does 4380 * not use frequency as a separate key in the BSS table, so filter out 4381 * duplicated entries. Prefer associated BSS entry in such a case in 4382 * order to get the correct frequency into the BSS table. 4383 */ 4384 for (i = 0; i < res->num; i++) { 4385 const u8 *s1, *s2; 4386 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) 4387 continue; 4388 4389 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), 4390 res->res[i]->ie_len, WLAN_EID_SSID); 4391 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); 4392 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || 4393 os_memcmp(s1, s2, 2 + s1[1]) != 0) 4394 continue; 4395 4396 /* Same BSSID,SSID was already included in scan results */ 4397 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " 4398 "for " MACSTR, MAC2STR(r->bssid)); 4399 4400 if ((r->flags & WPA_SCAN_ASSOCIATED) && 4401 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) { 4402 os_free(res->res[i]); 4403 res->res[i] = r; 4404 } else 4405 os_free(r); 4406 return NL_SKIP; 4407 } 4408 4409 tmp = os_realloc_array(res->res, res->num + 1, 4410 sizeof(struct wpa_scan_res *)); 4411 if (tmp == NULL) { 4412 os_free(r); 4413 return NL_SKIP; 4414 } 4415 tmp[res->num++] = r; 4416 res->res = tmp; 4417 4418 return NL_SKIP; 4419} 4420 4421 4422static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, 4423 const u8 *addr) 4424{ 4425 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { 4426 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " 4427 "mismatch (" MACSTR ")", MAC2STR(addr)); 4428 wpa_driver_nl80211_mlme(drv, addr, 4429 NL80211_CMD_DEAUTHENTICATE, 4430 WLAN_REASON_PREV_AUTH_NOT_VALID, 1); 4431 } 4432} 4433 4434 4435static void wpa_driver_nl80211_check_bss_status( 4436 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) 4437{ 4438 size_t i; 4439 4440 for (i = 0; i < res->num; i++) { 4441 struct wpa_scan_res *r = res->res[i]; 4442 if (r->flags & WPA_SCAN_AUTHENTICATED) { 4443 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4444 "indicates BSS status with " MACSTR 4445 " as authenticated", 4446 MAC2STR(r->bssid)); 4447 if (is_sta_interface(drv->nlmode) && 4448 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && 4449 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != 4450 0) { 4451 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" 4452 " in local state (auth=" MACSTR 4453 " assoc=" MACSTR ")", 4454 MAC2STR(drv->auth_bssid), 4455 MAC2STR(drv->bssid)); 4456 clear_state_mismatch(drv, r->bssid); 4457 } 4458 } 4459 4460 if (r->flags & WPA_SCAN_ASSOCIATED) { 4461 wpa_printf(MSG_DEBUG, "nl80211: Scan results " 4462 "indicate BSS status with " MACSTR 4463 " as associated", 4464 MAC2STR(r->bssid)); 4465 if (is_sta_interface(drv->nlmode) && 4466 !drv->associated) { 4467 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4468 "(not associated) does not match " 4469 "with BSS state"); 4470 clear_state_mismatch(drv, r->bssid); 4471 } else if (is_sta_interface(drv->nlmode) && 4472 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != 4473 0) { 4474 wpa_printf(MSG_DEBUG, "nl80211: Local state " 4475 "(associated with " MACSTR ") does " 4476 "not match with BSS state", 4477 MAC2STR(drv->bssid)); 4478 clear_state_mismatch(drv, r->bssid); 4479 clear_state_mismatch(drv, drv->bssid); 4480 } 4481 } 4482 } 4483} 4484 4485 4486static struct wpa_scan_results * 4487nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) 4488{ 4489 struct nl_msg *msg; 4490 struct wpa_scan_results *res; 4491 int ret; 4492 struct nl80211_bss_info_arg arg; 4493 4494 res = os_zalloc(sizeof(*res)); 4495 if (res == NULL) 4496 return NULL; 4497 msg = nlmsg_alloc(); 4498 if (!msg) 4499 goto nla_put_failure; 4500 4501 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 4502 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4503 4504 arg.drv = drv; 4505 arg.res = res; 4506 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 4507 msg = NULL; 4508 if (ret == 0) { 4509 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " 4510 "BSSes)", (unsigned long) res->num); 4511 nl80211_get_noise_for_scan_results(drv, res); 4512 return res; 4513 } 4514 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 4515 "(%s)", ret, strerror(-ret)); 4516nla_put_failure: 4517 nlmsg_free(msg); 4518 wpa_scan_results_free(res); 4519 return NULL; 4520} 4521 4522 4523/** 4524 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results 4525 * @priv: Pointer to private wext data from wpa_driver_nl80211_init() 4526 * Returns: Scan results on success, -1 on failure 4527 */ 4528static struct wpa_scan_results * 4529wpa_driver_nl80211_get_scan_results(void *priv) 4530{ 4531 struct i802_bss *bss = priv; 4532 struct wpa_driver_nl80211_data *drv = bss->drv; 4533 struct wpa_scan_results *res; 4534 4535 res = nl80211_get_scan_results(drv); 4536 if (res) 4537 wpa_driver_nl80211_check_bss_status(drv, res); 4538 return res; 4539} 4540 4541 4542static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) 4543{ 4544 struct wpa_scan_results *res; 4545 size_t i; 4546 4547 res = nl80211_get_scan_results(drv); 4548 if (res == NULL) { 4549 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); 4550 return; 4551 } 4552 4553 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); 4554 for (i = 0; i < res->num; i++) { 4555 struct wpa_scan_res *r = res->res[i]; 4556 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", 4557 (int) i, (int) res->num, MAC2STR(r->bssid), 4558 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", 4559 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); 4560 } 4561 4562 wpa_scan_results_free(res); 4563} 4564 4565 4566static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 4567 enum wpa_alg alg, const u8 *addr, 4568 int key_idx, int set_tx, 4569 const u8 *seq, size_t seq_len, 4570 const u8 *key, size_t key_len) 4571{ 4572 struct wpa_driver_nl80211_data *drv = bss->drv; 4573 int ifindex = if_nametoindex(ifname); 4574 struct nl_msg *msg; 4575 int ret; 4576 4577 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d " 4578 "set_tx=%d seq_len=%lu key_len=%lu", 4579 __func__, ifindex, alg, addr, key_idx, set_tx, 4580 (unsigned long) seq_len, (unsigned long) key_len); 4581#ifdef CONFIG_TDLS 4582 if (key_idx == -1) 4583 key_idx = 0; 4584#endif /* CONFIG_TDLS */ 4585 4586 msg = nlmsg_alloc(); 4587 if (!msg) 4588 return -ENOMEM; 4589 4590 if (alg == WPA_ALG_NONE) { 4591 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); 4592 } else { 4593 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); 4594 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); 4595 switch (alg) { 4596 case WPA_ALG_WEP: 4597 if (key_len == 5) 4598 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4599 WLAN_CIPHER_SUITE_WEP40); 4600 else 4601 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4602 WLAN_CIPHER_SUITE_WEP104); 4603 break; 4604 case WPA_ALG_TKIP: 4605 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4606 WLAN_CIPHER_SUITE_TKIP); 4607 break; 4608 case WPA_ALG_CCMP: 4609 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4610 WLAN_CIPHER_SUITE_CCMP); 4611 break; 4612 case WPA_ALG_GCMP: 4613 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4614 WLAN_CIPHER_SUITE_GCMP); 4615 break; 4616 case WPA_ALG_IGTK: 4617 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4618 WLAN_CIPHER_SUITE_AES_CMAC); 4619 break; 4620 case WPA_ALG_SMS4: 4621 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4622 WLAN_CIPHER_SUITE_SMS4); 4623 break; 4624 case WPA_ALG_KRK: 4625 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 4626 WLAN_CIPHER_SUITE_KRK); 4627 break; 4628 default: 4629 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4630 "algorithm %d", __func__, alg); 4631 nlmsg_free(msg); 4632 return -1; 4633 } 4634 } 4635 4636 if (seq && seq_len) 4637 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); 4638 4639 if (addr && !is_broadcast_ether_addr(addr)) { 4640 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 4641 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4642 4643 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 4644 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 4645 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, 4646 NL80211_KEYTYPE_GROUP); 4647 } 4648 } else if (addr && is_broadcast_ether_addr(addr)) { 4649 struct nlattr *types; 4650 4651 wpa_printf(MSG_DEBUG, " broadcast key"); 4652 4653 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4654 if (!types) 4655 goto nla_put_failure; 4656 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4657 nla_nest_end(msg, types); 4658 } 4659 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4660 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4661 4662 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4663 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 4664 ret = 0; 4665 if (ret) 4666 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 4667 ret, strerror(-ret)); 4668 4669 /* 4670 * If we failed or don't need to set the default TX key (below), 4671 * we're done here. 4672 */ 4673 if (ret || !set_tx || alg == WPA_ALG_NONE) 4674 return ret; 4675 if (is_ap_interface(drv->nlmode) && addr && 4676 !is_broadcast_ether_addr(addr)) 4677 return ret; 4678 4679 msg = nlmsg_alloc(); 4680 if (!msg) 4681 return -ENOMEM; 4682 4683 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); 4684 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); 4685 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 4686 if (alg == WPA_ALG_IGTK) 4687 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); 4688 else 4689 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); 4690 if (addr && is_broadcast_ether_addr(addr)) { 4691 struct nlattr *types; 4692 4693 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4694 if (!types) 4695 goto nla_put_failure; 4696 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); 4697 nla_nest_end(msg, types); 4698 } else if (addr) { 4699 struct nlattr *types; 4700 4701 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 4702 if (!types) 4703 goto nla_put_failure; 4704 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); 4705 nla_nest_end(msg, types); 4706 } 4707 4708 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4709 if (ret == -ENOENT) 4710 ret = 0; 4711 if (ret) 4712 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 4713 "err=%d %s)", ret, strerror(-ret)); 4714 return ret; 4715 4716nla_put_failure: 4717 nlmsg_free(msg); 4718 return -ENOBUFS; 4719} 4720 4721 4722static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 4723 int key_idx, int defkey, 4724 const u8 *seq, size_t seq_len, 4725 const u8 *key, size_t key_len) 4726{ 4727 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 4728 if (!key_attr) 4729 return -1; 4730 4731 if (defkey && alg == WPA_ALG_IGTK) 4732 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); 4733 else if (defkey) 4734 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4735 4736 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); 4737 4738 switch (alg) { 4739 case WPA_ALG_WEP: 4740 if (key_len == 5) 4741 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4742 WLAN_CIPHER_SUITE_WEP40); 4743 else 4744 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4745 WLAN_CIPHER_SUITE_WEP104); 4746 break; 4747 case WPA_ALG_TKIP: 4748 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP); 4749 break; 4750 case WPA_ALG_CCMP: 4751 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP); 4752 break; 4753 case WPA_ALG_GCMP: 4754 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP); 4755 break; 4756 case WPA_ALG_IGTK: 4757 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4758 WLAN_CIPHER_SUITE_AES_CMAC); 4759 break; 4760 default: 4761 wpa_printf(MSG_ERROR, "%s: Unsupported encryption " 4762 "algorithm %d", __func__, alg); 4763 return -1; 4764 } 4765 4766 if (seq && seq_len) 4767 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); 4768 4769 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); 4770 4771 nla_nest_end(msg, key_attr); 4772 4773 return 0; 4774 nla_put_failure: 4775 return -1; 4776} 4777 4778 4779static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 4780 struct nl_msg *msg) 4781{ 4782 int i, privacy = 0; 4783 struct nlattr *nl_keys, *nl_key; 4784 4785 for (i = 0; i < 4; i++) { 4786 if (!params->wep_key[i]) 4787 continue; 4788 privacy = 1; 4789 break; 4790 } 4791 if (params->wps == WPS_MODE_PRIVACY) 4792 privacy = 1; 4793 if (params->pairwise_suite && 4794 params->pairwise_suite != WPA_CIPHER_NONE) 4795 privacy = 1; 4796 4797 if (!privacy) 4798 return 0; 4799 4800 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 4801 4802 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 4803 if (!nl_keys) 4804 goto nla_put_failure; 4805 4806 for (i = 0; i < 4; i++) { 4807 if (!params->wep_key[i]) 4808 continue; 4809 4810 nl_key = nla_nest_start(msg, i); 4811 if (!nl_key) 4812 goto nla_put_failure; 4813 4814 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], 4815 params->wep_key[i]); 4816 if (params->wep_key_len[i] == 5) 4817 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4818 WLAN_CIPHER_SUITE_WEP40); 4819 else 4820 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 4821 WLAN_CIPHER_SUITE_WEP104); 4822 4823 NLA_PUT_U8(msg, NL80211_KEY_IDX, i); 4824 4825 if (i == params->wep_tx_keyidx) 4826 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); 4827 4828 nla_nest_end(msg, nl_key); 4829 } 4830 nla_nest_end(msg, nl_keys); 4831 4832 return 0; 4833 4834nla_put_failure: 4835 return -ENOBUFS; 4836} 4837 4838 4839static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 4840 const u8 *addr, int cmd, u16 reason_code, 4841 int local_state_change) 4842{ 4843 int ret = -1; 4844 struct nl_msg *msg; 4845 4846 msg = nlmsg_alloc(); 4847 if (!msg) 4848 return -1; 4849 4850 nl80211_cmd(drv, msg, 0, cmd); 4851 4852 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 4853 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); 4854 if (addr) 4855 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 4856 if (local_state_change) 4857 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 4858 4859 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4860 msg = NULL; 4861 if (ret) { 4862 wpa_dbg(drv->ctx, MSG_DEBUG, 4863 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 4864 reason_code, ret, strerror(-ret)); 4865 goto nla_put_failure; 4866 } 4867 ret = 0; 4868 4869nla_put_failure: 4870 nlmsg_free(msg); 4871 return ret; 4872} 4873 4874 4875static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 4876 int reason_code) 4877{ 4878 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 4879 nl80211_mark_disconnected(drv); 4880 drv->ignore_next_local_disconnect = 0; 4881 /* Disconnect command doesn't need BSSID - it uses cached value */ 4882 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 4883 reason_code, 0); 4884} 4885 4886 4887static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 4888 const u8 *addr, int reason_code) 4889{ 4890 struct wpa_driver_nl80211_data *drv = bss->drv; 4891 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 4892 return wpa_driver_nl80211_disconnect(drv, reason_code); 4893 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 4894 __func__, MAC2STR(addr), reason_code); 4895 nl80211_mark_disconnected(drv); 4896 if (drv->nlmode == NL80211_IFTYPE_ADHOC) 4897 return nl80211_leave_ibss(drv); 4898 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 4899 reason_code, 0); 4900} 4901 4902 4903static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 4904 struct wpa_driver_auth_params *params) 4905{ 4906 int i; 4907 4908 drv->auth_freq = params->freq; 4909 drv->auth_alg = params->auth_alg; 4910 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 4911 drv->auth_local_state_change = params->local_state_change; 4912 drv->auth_p2p = params->p2p; 4913 4914 if (params->bssid) 4915 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 4916 else 4917 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 4918 4919 if (params->ssid) { 4920 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 4921 drv->auth_ssid_len = params->ssid_len; 4922 } else 4923 drv->auth_ssid_len = 0; 4924 4925 4926 os_free(drv->auth_ie); 4927 drv->auth_ie = NULL; 4928 drv->auth_ie_len = 0; 4929 if (params->ie) { 4930 drv->auth_ie = os_malloc(params->ie_len); 4931 if (drv->auth_ie) { 4932 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 4933 drv->auth_ie_len = params->ie_len; 4934 } 4935 } 4936 4937 for (i = 0; i < 4; i++) { 4938 if (params->wep_key[i] && params->wep_key_len[i] && 4939 params->wep_key_len[i] <= 16) { 4940 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 4941 params->wep_key_len[i]); 4942 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 4943 } else 4944 drv->auth_wep_key_len[i] = 0; 4945 } 4946} 4947 4948 4949static int wpa_driver_nl80211_authenticate( 4950 struct i802_bss *bss, struct wpa_driver_auth_params *params) 4951{ 4952 struct wpa_driver_nl80211_data *drv = bss->drv; 4953 int ret = -1, i; 4954 struct nl_msg *msg; 4955 enum nl80211_auth_type type; 4956 enum nl80211_iftype nlmode; 4957 int count = 0; 4958 int is_retry; 4959 4960 is_retry = drv->retry_auth; 4961 drv->retry_auth = 0; 4962 4963 nl80211_mark_disconnected(drv); 4964 os_memset(drv->auth_bssid, 0, ETH_ALEN); 4965 if (params->bssid) 4966 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 4967 else 4968 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 4969 /* FIX: IBSS mode */ 4970 nlmode = params->p2p ? 4971 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 4972 if (drv->nlmode != nlmode && 4973 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 4974 return -1; 4975 4976retry: 4977 msg = nlmsg_alloc(); 4978 if (!msg) 4979 return -1; 4980 4981 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 4982 drv->ifindex); 4983 4984 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); 4985 4986 for (i = 0; i < 4; i++) { 4987 if (!params->wep_key[i]) 4988 continue; 4989 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 4990 NULL, i, 4991 i == params->wep_tx_keyidx, NULL, 0, 4992 params->wep_key[i], 4993 params->wep_key_len[i]); 4994 if (params->wep_tx_keyidx != i) 4995 continue; 4996 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 4997 params->wep_key[i], params->wep_key_len[i])) { 4998 nlmsg_free(msg); 4999 return -1; 5000 } 5001 } 5002 5003 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5004 if (params->bssid) { 5005 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 5006 MAC2STR(params->bssid)); 5007 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 5008 } 5009 if (params->freq) { 5010 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 5011 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 5012 } 5013 if (params->ssid) { 5014 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 5015 params->ssid, params->ssid_len); 5016 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5017 params->ssid); 5018 } 5019 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 5020 if (params->ie) 5021 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); 5022 if (params->sae_data) { 5023 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 5024 params->sae_data_len); 5025 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 5026 params->sae_data); 5027 } 5028 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5029 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5030 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5031 type = NL80211_AUTHTYPE_SHARED_KEY; 5032 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5033 type = NL80211_AUTHTYPE_NETWORK_EAP; 5034 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5035 type = NL80211_AUTHTYPE_FT; 5036 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 5037 type = NL80211_AUTHTYPE_SAE; 5038 else 5039 goto nla_put_failure; 5040 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5041 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 5042 if (params->local_state_change) { 5043 wpa_printf(MSG_DEBUG, " * Local state change only"); 5044 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); 5045 } 5046 5047 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5048 msg = NULL; 5049 if (ret) { 5050 wpa_dbg(drv->ctx, MSG_DEBUG, 5051 "nl80211: MLME command failed (auth): ret=%d (%s)", 5052 ret, strerror(-ret)); 5053 count++; 5054 if (ret == -EALREADY && count == 1 && params->bssid && 5055 !params->local_state_change) { 5056 /* 5057 * mac80211 does not currently accept new 5058 * authentication if we are already authenticated. As a 5059 * workaround, force deauthentication and try again. 5060 */ 5061 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 5062 "after forced deauthentication"); 5063 wpa_driver_nl80211_deauthenticate( 5064 bss, params->bssid, 5065 WLAN_REASON_PREV_AUTH_NOT_VALID); 5066 nlmsg_free(msg); 5067 goto retry; 5068 } 5069 5070 if (ret == -ENOENT && params->freq && !is_retry) { 5071 /* 5072 * cfg80211 has likely expired the BSS entry even 5073 * though it was previously available in our internal 5074 * BSS table. To recover quickly, start a single 5075 * channel scan on the specified channel. 5076 */ 5077 struct wpa_driver_scan_params scan; 5078 int freqs[2]; 5079 5080 os_memset(&scan, 0, sizeof(scan)); 5081 scan.num_ssids = 1; 5082 if (params->ssid) { 5083 scan.ssids[0].ssid = params->ssid; 5084 scan.ssids[0].ssid_len = params->ssid_len; 5085 } 5086 freqs[0] = params->freq; 5087 freqs[1] = 0; 5088 scan.freqs = freqs; 5089 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 5090 "channel scan to refresh cfg80211 BSS " 5091 "entry"); 5092 ret = wpa_driver_nl80211_scan(bss, &scan); 5093 if (ret == 0) { 5094 nl80211_copy_auth_params(drv, params); 5095 drv->scan_for_auth = 1; 5096 } 5097 } else if (is_retry) { 5098 /* 5099 * Need to indicate this with an event since the return 5100 * value from the retry is not delivered to core code. 5101 */ 5102 union wpa_event_data event; 5103 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 5104 "failed"); 5105 os_memset(&event, 0, sizeof(event)); 5106 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 5107 ETH_ALEN); 5108 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 5109 &event); 5110 } 5111 5112 goto nla_put_failure; 5113 } 5114 ret = 0; 5115 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " 5116 "successfully"); 5117 5118nla_put_failure: 5119 nlmsg_free(msg); 5120 return ret; 5121} 5122 5123 5124static int wpa_driver_nl80211_authenticate_retry( 5125 struct wpa_driver_nl80211_data *drv) 5126{ 5127 struct wpa_driver_auth_params params; 5128 struct i802_bss *bss = &drv->first_bss; 5129 int i; 5130 5131 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 5132 5133 os_memset(¶ms, 0, sizeof(params)); 5134 params.freq = drv->auth_freq; 5135 params.auth_alg = drv->auth_alg; 5136 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 5137 params.local_state_change = drv->auth_local_state_change; 5138 params.p2p = drv->auth_p2p; 5139 5140 if (!is_zero_ether_addr(drv->auth_bssid_)) 5141 params.bssid = drv->auth_bssid_; 5142 5143 if (drv->auth_ssid_len) { 5144 params.ssid = drv->auth_ssid; 5145 params.ssid_len = drv->auth_ssid_len; 5146 } 5147 5148 params.ie = drv->auth_ie; 5149 params.ie_len = drv->auth_ie_len; 5150 5151 for (i = 0; i < 4; i++) { 5152 if (drv->auth_wep_key_len[i]) { 5153 params.wep_key[i] = drv->auth_wep_key[i]; 5154 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 5155 } 5156 } 5157 5158 drv->retry_auth = 1; 5159 return wpa_driver_nl80211_authenticate(bss, ¶ms); 5160} 5161 5162 5163struct phy_info_arg { 5164 u16 *num_modes; 5165 struct hostapd_hw_modes *modes; 5166 int last_mode, last_chan_idx; 5167}; 5168 5169static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, 5170 struct nlattr *ampdu_factor, 5171 struct nlattr *ampdu_density, 5172 struct nlattr *mcs_set) 5173{ 5174 if (capa) 5175 mode->ht_capab = nla_get_u16(capa); 5176 5177 if (ampdu_factor) 5178 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; 5179 5180 if (ampdu_density) 5181 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; 5182 5183 if (mcs_set && nla_len(mcs_set) >= 16) { 5184 u8 *mcs; 5185 mcs = nla_data(mcs_set); 5186 os_memcpy(mode->mcs_set, mcs, 16); 5187 } 5188} 5189 5190 5191static void phy_info_vht_capa(struct hostapd_hw_modes *mode, 5192 struct nlattr *capa, 5193 struct nlattr *mcs_set) 5194{ 5195 if (capa) 5196 mode->vht_capab = nla_get_u32(capa); 5197 5198 if (mcs_set && nla_len(mcs_set) >= 8) { 5199 u8 *mcs; 5200 mcs = nla_data(mcs_set); 5201 os_memcpy(mode->vht_mcs_set, mcs, 8); 5202 } 5203} 5204 5205 5206static void phy_info_freq(struct hostapd_hw_modes *mode, 5207 struct hostapd_channel_data *chan, 5208 struct nlattr *tb_freq[]) 5209{ 5210 u8 channel; 5211 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 5212 chan->flag = 0; 5213 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) 5214 chan->chan = channel; 5215 5216 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5217 chan->flag |= HOSTAPD_CHAN_DISABLED; 5218 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) 5219 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN; 5220 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) 5221 chan->flag |= HOSTAPD_CHAN_NO_IBSS; 5222 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) 5223 chan->flag |= HOSTAPD_CHAN_RADAR; 5224 5225 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && 5226 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) 5227 chan->max_tx_power = nla_get_u32( 5228 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100; 5229 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { 5230 enum nl80211_dfs_state state = 5231 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); 5232 5233 switch (state) { 5234 case NL80211_DFS_USABLE: 5235 chan->flag |= HOSTAPD_CHAN_DFS_USABLE; 5236 break; 5237 case NL80211_DFS_AVAILABLE: 5238 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; 5239 break; 5240 case NL80211_DFS_UNAVAILABLE: 5241 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; 5242 break; 5243 } 5244 } 5245} 5246 5247 5248static int phy_info_freqs(struct phy_info_arg *phy_info, 5249 struct hostapd_hw_modes *mode, struct nlattr *tb) 5250{ 5251 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5252 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 5253 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, 5254 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, 5255 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 5256 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, 5257 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, 5258 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, 5259 }; 5260 int new_channels = 0; 5261 struct hostapd_channel_data *channel; 5262 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 5263 struct nlattr *nl_freq; 5264 int rem_freq, idx; 5265 5266 if (tb == NULL) 5267 return NL_OK; 5268 5269 nla_for_each_nested(nl_freq, tb, rem_freq) { 5270 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5271 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5272 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5273 continue; 5274 new_channels++; 5275 } 5276 5277 channel = os_realloc_array(mode->channels, 5278 mode->num_channels + new_channels, 5279 sizeof(struct hostapd_channel_data)); 5280 if (!channel) 5281 return NL_SKIP; 5282 5283 mode->channels = channel; 5284 mode->num_channels += new_channels; 5285 5286 idx = phy_info->last_chan_idx; 5287 5288 nla_for_each_nested(nl_freq, tb, rem_freq) { 5289 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, 5290 nla_data(nl_freq), nla_len(nl_freq), freq_policy); 5291 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) 5292 continue; 5293 phy_info_freq(mode, &mode->channels[idx], tb_freq); 5294 idx++; 5295 } 5296 phy_info->last_chan_idx = idx; 5297 5298 return NL_OK; 5299} 5300 5301 5302static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) 5303{ 5304 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { 5305 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, 5306 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = 5307 { .type = NLA_FLAG }, 5308 }; 5309 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; 5310 struct nlattr *nl_rate; 5311 int rem_rate, idx; 5312 5313 if (tb == NULL) 5314 return NL_OK; 5315 5316 nla_for_each_nested(nl_rate, tb, rem_rate) { 5317 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5318 nla_data(nl_rate), nla_len(nl_rate), 5319 rate_policy); 5320 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5321 continue; 5322 mode->num_rates++; 5323 } 5324 5325 mode->rates = os_calloc(mode->num_rates, sizeof(int)); 5326 if (!mode->rates) 5327 return NL_SKIP; 5328 5329 idx = 0; 5330 5331 nla_for_each_nested(nl_rate, tb, rem_rate) { 5332 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, 5333 nla_data(nl_rate), nla_len(nl_rate), 5334 rate_policy); 5335 if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) 5336 continue; 5337 mode->rates[idx] = nla_get_u32( 5338 tb_rate[NL80211_BITRATE_ATTR_RATE]); 5339 idx++; 5340 } 5341 5342 return NL_OK; 5343} 5344 5345 5346static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) 5347{ 5348 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; 5349 struct hostapd_hw_modes *mode; 5350 int ret; 5351 5352 if (phy_info->last_mode != nl_band->nla_type) { 5353 mode = os_realloc_array(phy_info->modes, 5354 *phy_info->num_modes + 1, 5355 sizeof(*mode)); 5356 if (!mode) 5357 return NL_SKIP; 5358 phy_info->modes = mode; 5359 5360 mode = &phy_info->modes[*(phy_info->num_modes)]; 5361 os_memset(mode, 0, sizeof(*mode)); 5362 mode->mode = NUM_HOSTAPD_MODES; 5363 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN; 5364 *(phy_info->num_modes) += 1; 5365 phy_info->last_mode = nl_band->nla_type; 5366 phy_info->last_chan_idx = 0; 5367 } else 5368 mode = &phy_info->modes[*(phy_info->num_modes) - 1]; 5369 5370 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), 5371 nla_len(nl_band), NULL); 5372 5373 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], 5374 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], 5375 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], 5376 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); 5377 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], 5378 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); 5379 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); 5380 if (ret != NL_OK) 5381 return ret; 5382 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); 5383 if (ret != NL_OK) 5384 return ret; 5385 5386 return NL_OK; 5387} 5388 5389 5390static int phy_info_handler(struct nl_msg *msg, void *arg) 5391{ 5392 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5393 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5394 struct phy_info_arg *phy_info = arg; 5395 struct nlattr *nl_band; 5396 int rem_band; 5397 5398 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5399 genlmsg_attrlen(gnlh, 0), NULL); 5400 5401 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) 5402 return NL_SKIP; 5403 5404 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) 5405 { 5406 int res = phy_info_band(phy_info, nl_band); 5407 if (res != NL_OK) 5408 return res; 5409 } 5410 5411 return NL_SKIP; 5412} 5413 5414 5415static struct hostapd_hw_modes * 5416wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, 5417 u16 *num_modes) 5418{ 5419 u16 m; 5420 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; 5421 int i, mode11g_idx = -1; 5422 5423 /* heuristic to set up modes */ 5424 for (m = 0; m < *num_modes; m++) { 5425 if (!modes[m].num_channels) 5426 continue; 5427 if (modes[m].channels[0].freq < 4000) { 5428 modes[m].mode = HOSTAPD_MODE_IEEE80211B; 5429 for (i = 0; i < modes[m].num_rates; i++) { 5430 if (modes[m].rates[i] > 200) { 5431 modes[m].mode = HOSTAPD_MODE_IEEE80211G; 5432 break; 5433 } 5434 } 5435 } else if (modes[m].channels[0].freq > 50000) 5436 modes[m].mode = HOSTAPD_MODE_IEEE80211AD; 5437 else 5438 modes[m].mode = HOSTAPD_MODE_IEEE80211A; 5439 } 5440 5441 /* If only 802.11g mode is included, use it to construct matching 5442 * 802.11b mode data. */ 5443 5444 for (m = 0; m < *num_modes; m++) { 5445 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) 5446 return modes; /* 802.11b already included */ 5447 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) 5448 mode11g_idx = m; 5449 } 5450 5451 if (mode11g_idx < 0) 5452 return modes; /* 2.4 GHz band not supported at all */ 5453 5454 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); 5455 if (nmodes == NULL) 5456 return modes; /* Could not add 802.11b mode */ 5457 5458 mode = &nmodes[*num_modes]; 5459 os_memset(mode, 0, sizeof(*mode)); 5460 (*num_modes)++; 5461 modes = nmodes; 5462 5463 mode->mode = HOSTAPD_MODE_IEEE80211B; 5464 5465 mode11g = &modes[mode11g_idx]; 5466 mode->num_channels = mode11g->num_channels; 5467 mode->channels = os_malloc(mode11g->num_channels * 5468 sizeof(struct hostapd_channel_data)); 5469 if (mode->channels == NULL) { 5470 (*num_modes)--; 5471 return modes; /* Could not add 802.11b mode */ 5472 } 5473 os_memcpy(mode->channels, mode11g->channels, 5474 mode11g->num_channels * sizeof(struct hostapd_channel_data)); 5475 5476 mode->num_rates = 0; 5477 mode->rates = os_malloc(4 * sizeof(int)); 5478 if (mode->rates == NULL) { 5479 os_free(mode->channels); 5480 (*num_modes)--; 5481 return modes; /* Could not add 802.11b mode */ 5482 } 5483 5484 for (i = 0; i < mode11g->num_rates; i++) { 5485 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && 5486 mode11g->rates[i] != 55 && mode11g->rates[i] != 110) 5487 continue; 5488 mode->rates[mode->num_rates] = mode11g->rates[i]; 5489 mode->num_rates++; 5490 if (mode->num_rates == 4) 5491 break; 5492 } 5493 5494 if (mode->num_rates == 0) { 5495 os_free(mode->channels); 5496 os_free(mode->rates); 5497 (*num_modes)--; 5498 return modes; /* No 802.11b rates */ 5499 } 5500 5501 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " 5502 "information"); 5503 5504 return modes; 5505} 5506 5507 5508static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, 5509 int end) 5510{ 5511 int c; 5512 5513 for (c = 0; c < mode->num_channels; c++) { 5514 struct hostapd_channel_data *chan = &mode->channels[c]; 5515 if (chan->freq - 10 >= start && chan->freq + 10 <= end) 5516 chan->flag |= HOSTAPD_CHAN_HT40; 5517 } 5518} 5519 5520 5521static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, 5522 int end) 5523{ 5524 int c; 5525 5526 for (c = 0; c < mode->num_channels; c++) { 5527 struct hostapd_channel_data *chan = &mode->channels[c]; 5528 if (!(chan->flag & HOSTAPD_CHAN_HT40)) 5529 continue; 5530 if (chan->freq - 30 >= start && chan->freq - 10 <= end) 5531 chan->flag |= HOSTAPD_CHAN_HT40MINUS; 5532 if (chan->freq + 10 >= start && chan->freq + 30 <= end) 5533 chan->flag |= HOSTAPD_CHAN_HT40PLUS; 5534 } 5535} 5536 5537 5538static void nl80211_reg_rule_ht40(struct nlattr *tb[], 5539 struct phy_info_arg *results) 5540{ 5541 u32 start, end, max_bw; 5542 u16 m; 5543 5544 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5545 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5546 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5547 return; 5548 5549 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5550 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5551 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5552 5553 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz", 5554 start, end, max_bw); 5555 if (max_bw < 40) 5556 return; 5557 5558 for (m = 0; m < *results->num_modes; m++) { 5559 if (!(results->modes[m].ht_capab & 5560 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5561 continue; 5562 nl80211_set_ht40_mode(&results->modes[m], start, end); 5563 } 5564} 5565 5566 5567static void nl80211_reg_rule_sec(struct nlattr *tb[], 5568 struct phy_info_arg *results) 5569{ 5570 u32 start, end, max_bw; 5571 u16 m; 5572 5573 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || 5574 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || 5575 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) 5576 return; 5577 5578 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; 5579 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; 5580 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; 5581 5582 if (max_bw < 20) 5583 return; 5584 5585 for (m = 0; m < *results->num_modes; m++) { 5586 if (!(results->modes[m].ht_capab & 5587 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) 5588 continue; 5589 nl80211_set_ht40_mode_sec(&results->modes[m], start, end); 5590 } 5591} 5592 5593 5594static int nl80211_get_reg(struct nl_msg *msg, void *arg) 5595{ 5596 struct phy_info_arg *results = arg; 5597 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 5598 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5599 struct nlattr *nl_rule; 5600 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; 5601 int rem_rule; 5602 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 5603 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, 5604 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, 5605 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, 5606 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, 5607 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, 5608 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, 5609 }; 5610 5611 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5612 genlmsg_attrlen(gnlh, 0), NULL); 5613 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || 5614 !tb_msg[NL80211_ATTR_REG_RULES]) { 5615 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " 5616 "available"); 5617 return NL_SKIP; 5618 } 5619 5620 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", 5621 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); 5622 5623 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5624 { 5625 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5626 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5627 nl80211_reg_rule_ht40(tb_rule, results); 5628 } 5629 5630 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) 5631 { 5632 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, 5633 nla_data(nl_rule), nla_len(nl_rule), reg_policy); 5634 nl80211_reg_rule_sec(tb_rule, results); 5635 } 5636 5637 return NL_SKIP; 5638} 5639 5640 5641static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv, 5642 struct phy_info_arg *results) 5643{ 5644 struct nl_msg *msg; 5645 5646 msg = nlmsg_alloc(); 5647 if (!msg) 5648 return -ENOMEM; 5649 5650 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 5651 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); 5652} 5653 5654 5655static struct hostapd_hw_modes * 5656wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) 5657{ 5658 u32 feat; 5659 struct i802_bss *bss = priv; 5660 struct wpa_driver_nl80211_data *drv = bss->drv; 5661 struct nl_msg *msg; 5662 struct phy_info_arg result = { 5663 .num_modes = num_modes, 5664 .modes = NULL, 5665 .last_mode = -1, 5666 }; 5667 5668 *num_modes = 0; 5669 *flags = 0; 5670 5671 msg = nlmsg_alloc(); 5672 if (!msg) 5673 return NULL; 5674 5675 feat = get_nl80211_protocol_features(drv); 5676 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) 5677 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); 5678 else 5679 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); 5680 5681 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); 5682 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5683 5684 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { 5685 nl80211_set_ht40_flags(drv, &result); 5686 return wpa_driver_nl80211_postprocess_modes(result.modes, 5687 num_modes); 5688 } 5689 msg = NULL; 5690 nla_put_failure: 5691 nlmsg_free(msg); 5692 return NULL; 5693} 5694 5695 5696static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, 5697 const void *data, size_t len, 5698 int encrypt, int noack) 5699{ 5700 __u8 rtap_hdr[] = { 5701 0x00, 0x00, /* radiotap version */ 5702 0x0e, 0x00, /* radiotap length */ 5703 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ 5704 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ 5705 0x00, /* padding */ 5706 0x00, 0x00, /* RX and TX flags to indicate that */ 5707 0x00, 0x00, /* this is the injected frame directly */ 5708 }; 5709 struct iovec iov[2] = { 5710 { 5711 .iov_base = &rtap_hdr, 5712 .iov_len = sizeof(rtap_hdr), 5713 }, 5714 { 5715 .iov_base = (void *) data, 5716 .iov_len = len, 5717 } 5718 }; 5719 struct msghdr msg = { 5720 .msg_name = NULL, 5721 .msg_namelen = 0, 5722 .msg_iov = iov, 5723 .msg_iovlen = 2, 5724 .msg_control = NULL, 5725 .msg_controllen = 0, 5726 .msg_flags = 0, 5727 }; 5728 int res; 5729 u16 txflags = 0; 5730 5731 if (encrypt) 5732 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; 5733 5734 if (drv->monitor_sock < 0) { 5735 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " 5736 "for %s", __func__); 5737 return -1; 5738 } 5739 5740 if (noack) 5741 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; 5742 WPA_PUT_LE16(&rtap_hdr[12], txflags); 5743 5744 res = sendmsg(drv->monitor_sock, &msg, 0); 5745 if (res < 0) { 5746 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); 5747 return -1; 5748 } 5749 return 0; 5750} 5751 5752 5753static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 5754 const void *data, size_t len, 5755 int encrypt, int noack, 5756 unsigned int freq, int no_cck, 5757 int offchanok, unsigned int wait_time) 5758{ 5759 struct wpa_driver_nl80211_data *drv = bss->drv; 5760 u64 cookie; 5761 5762 if (freq == 0) 5763 freq = bss->freq; 5764 5765 if (drv->use_monitor) 5766 return wpa_driver_nl80211_send_mntr(drv, data, len, 5767 encrypt, noack); 5768 5769 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 5770 &cookie, no_cck, noack, offchanok); 5771} 5772 5773 5774static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 5775 size_t data_len, int noack, 5776 unsigned int freq, int no_cck, 5777 int offchanok, 5778 unsigned int wait_time) 5779{ 5780 struct wpa_driver_nl80211_data *drv = bss->drv; 5781 struct ieee80211_mgmt *mgmt; 5782 int encrypt = 1; 5783 u16 fc; 5784 5785 mgmt = (struct ieee80211_mgmt *) data; 5786 fc = le_to_host16(mgmt->frame_control); 5787 5788 if (is_sta_interface(drv->nlmode) && 5789 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5790 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 5791 /* 5792 * The use of last_mgmt_freq is a bit of a hack, 5793 * but it works due to the single-threaded nature 5794 * of wpa_supplicant. 5795 */ 5796 if (freq == 0) 5797 freq = drv->last_mgmt_freq; 5798 return nl80211_send_frame_cmd(bss, freq, 0, 5799 data, data_len, NULL, 1, noack, 5800 1); 5801 } 5802 5803 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 5804 if (freq == 0) 5805 freq = bss->freq; 5806 return nl80211_send_frame_cmd(bss, freq, 5807 (int) freq == bss->freq ? 0 : 5808 wait_time, 5809 data, data_len, 5810 &drv->send_action_cookie, 5811 no_cck, noack, offchanok); 5812 } 5813 5814 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 5815 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 5816 /* 5817 * Only one of the authentication frame types is encrypted. 5818 * In order for static WEP encryption to work properly (i.e., 5819 * to not encrypt the frame), we need to tell mac80211 about 5820 * the frames that must not be encrypted. 5821 */ 5822 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 5823 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 5824 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 5825 encrypt = 0; 5826 } 5827 5828 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 5829 noack, freq, no_cck, offchanok, 5830 wait_time); 5831} 5832 5833 5834static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 5835 int slot, int ht_opmode, int ap_isolate, 5836 int *basic_rates) 5837{ 5838 struct wpa_driver_nl80211_data *drv = bss->drv; 5839 struct nl_msg *msg; 5840 5841 msg = nlmsg_alloc(); 5842 if (!msg) 5843 return -ENOMEM; 5844 5845 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); 5846 5847 if (cts >= 0) 5848 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); 5849 if (preamble >= 0) 5850 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); 5851 if (slot >= 0) 5852 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); 5853 if (ht_opmode >= 0) 5854 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); 5855 if (ap_isolate >= 0) 5856 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); 5857 5858 if (basic_rates) { 5859 u8 rates[NL80211_MAX_SUPP_RATES]; 5860 u8 rates_len = 0; 5861 int i; 5862 5863 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; 5864 i++) 5865 rates[rates_len++] = basic_rates[i] / 5; 5866 5867 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 5868 } 5869 5870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 5871 5872 return send_and_recv_msgs(drv, msg, NULL, NULL); 5873 nla_put_failure: 5874 nlmsg_free(msg); 5875 return -ENOBUFS; 5876} 5877 5878 5879static int wpa_driver_nl80211_set_acl(void *priv, 5880 struct hostapd_acl_params *params) 5881{ 5882 struct i802_bss *bss = priv; 5883 struct wpa_driver_nl80211_data *drv = bss->drv; 5884 struct nl_msg *msg; 5885 struct nlattr *acl; 5886 unsigned int i; 5887 int ret = 0; 5888 5889 if (!(drv->capa.max_acl_mac_addrs)) 5890 return -ENOTSUP; 5891 5892 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 5893 return -ENOTSUP; 5894 5895 msg = nlmsg_alloc(); 5896 if (!msg) 5897 return -ENOMEM; 5898 5899 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 5900 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 5901 5902 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); 5903 5904 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 5905 5906 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 5907 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 5908 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); 5909 5910 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); 5911 if (acl == NULL) 5912 goto nla_put_failure; 5913 5914 for (i = 0; i < params->num_mac_acl; i++) 5915 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); 5916 5917 nla_nest_end(msg, acl); 5918 5919 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5920 msg = NULL; 5921 if (ret) { 5922 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 5923 ret, strerror(-ret)); 5924 } 5925 5926nla_put_failure: 5927 nlmsg_free(msg); 5928 5929 return ret; 5930} 5931 5932 5933static int wpa_driver_nl80211_set_ap(void *priv, 5934 struct wpa_driver_ap_params *params) 5935{ 5936 struct i802_bss *bss = priv; 5937 struct wpa_driver_nl80211_data *drv = bss->drv; 5938 struct nl_msg *msg; 5939 u8 cmd = NL80211_CMD_NEW_BEACON; 5940 int ret; 5941 int beacon_set; 5942 int ifindex = if_nametoindex(bss->ifname); 5943 int num_suites; 5944 u32 suites[10]; 5945 u32 ver; 5946 5947 beacon_set = bss->beacon_set; 5948 5949 msg = nlmsg_alloc(); 5950 if (!msg) 5951 return -ENOMEM; 5952 5953 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 5954 beacon_set); 5955 if (beacon_set) 5956 cmd = NL80211_CMD_SET_BEACON; 5957 5958 nl80211_cmd(drv, msg, 0, cmd); 5959 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 5960 params->head, params->head_len); 5961 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); 5962 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 5963 params->tail, params->tail_len); 5964 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); 5965 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); 5966 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 5967 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 5968 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); 5969 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 5970 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); 5971 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 5972 params->ssid, params->ssid_len); 5973 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 5974 params->ssid); 5975 if (params->proberesp && params->proberesp_len) { 5976 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 5977 params->proberesp, params->proberesp_len); 5978 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 5979 params->proberesp); 5980 } 5981 switch (params->hide_ssid) { 5982 case NO_SSID_HIDING: 5983 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 5984 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5985 NL80211_HIDDEN_SSID_NOT_IN_USE); 5986 break; 5987 case HIDDEN_SSID_ZERO_LEN: 5988 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 5989 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5990 NL80211_HIDDEN_SSID_ZERO_LEN); 5991 break; 5992 case HIDDEN_SSID_ZERO_CONTENTS: 5993 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 5994 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, 5995 NL80211_HIDDEN_SSID_ZERO_CONTENTS); 5996 break; 5997 } 5998 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 5999 if (params->privacy) 6000 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); 6001 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 6002 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 6003 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 6004 /* Leave out the attribute */ 6005 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) 6006 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6007 NL80211_AUTHTYPE_SHARED_KEY); 6008 else 6009 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, 6010 NL80211_AUTHTYPE_OPEN_SYSTEM); 6011 6012 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 6013 ver = 0; 6014 if (params->wpa_version & WPA_PROTO_WPA) 6015 ver |= NL80211_WPA_VERSION_1; 6016 if (params->wpa_version & WPA_PROTO_RSN) 6017 ver |= NL80211_WPA_VERSION_2; 6018 if (ver) 6019 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 6020 6021 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 6022 params->key_mgmt_suites); 6023 num_suites = 0; 6024 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 6025 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 6026 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 6027 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 6028 if (num_suites) { 6029 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, 6030 num_suites * sizeof(u32), suites); 6031 } 6032 6033 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && 6034 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) 6035 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); 6036 6037 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 6038 params->pairwise_ciphers); 6039 num_suites = 0; 6040 if (params->pairwise_ciphers & WPA_CIPHER_CCMP) 6041 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 6042 if (params->pairwise_ciphers & WPA_CIPHER_GCMP) 6043 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 6044 if (params->pairwise_ciphers & WPA_CIPHER_TKIP) 6045 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 6046 if (params->pairwise_ciphers & WPA_CIPHER_WEP104) 6047 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 6048 if (params->pairwise_ciphers & WPA_CIPHER_WEP40) 6049 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 6050 if (num_suites) { 6051 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 6052 num_suites * sizeof(u32), suites); 6053 } 6054 6055 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 6056 params->group_cipher); 6057 switch (params->group_cipher) { 6058 case WPA_CIPHER_CCMP: 6059 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6060 WLAN_CIPHER_SUITE_CCMP); 6061 break; 6062 case WPA_CIPHER_GCMP: 6063 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6064 WLAN_CIPHER_SUITE_GCMP); 6065 break; 6066 case WPA_CIPHER_TKIP: 6067 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6068 WLAN_CIPHER_SUITE_TKIP); 6069 break; 6070 case WPA_CIPHER_WEP104: 6071 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6072 WLAN_CIPHER_SUITE_WEP104); 6073 break; 6074 case WPA_CIPHER_WEP40: 6075 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, 6076 WLAN_CIPHER_SUITE_WEP40); 6077 break; 6078 } 6079 6080 if (params->beacon_ies) { 6081 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 6082 params->beacon_ies); 6083 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), 6084 wpabuf_head(params->beacon_ies)); 6085 } 6086 if (params->proberesp_ies) { 6087 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 6088 params->proberesp_ies); 6089 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, 6090 wpabuf_len(params->proberesp_ies), 6091 wpabuf_head(params->proberesp_ies)); 6092 } 6093 if (params->assocresp_ies) { 6094 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 6095 params->assocresp_ies); 6096 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, 6097 wpabuf_len(params->assocresp_ies), 6098 wpabuf_head(params->assocresp_ies)); 6099 } 6100 6101 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 6102 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 6103 params->ap_max_inactivity); 6104 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 6105 params->ap_max_inactivity); 6106 } 6107 6108 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6109 if (ret) { 6110 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 6111 ret, strerror(-ret)); 6112 } else { 6113 bss->beacon_set = 1; 6114 nl80211_set_bss(bss, params->cts_protect, params->preamble, 6115 params->short_slot_time, params->ht_opmode, 6116 params->isolate, params->basic_rates); 6117 } 6118 return ret; 6119 nla_put_failure: 6120 nlmsg_free(msg); 6121 return -ENOBUFS; 6122} 6123 6124 6125static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, 6126 struct hostapd_freq_params *freq) 6127{ 6128 struct wpa_driver_nl80211_data *drv = bss->drv; 6129 struct nl_msg *msg; 6130 int ret; 6131 6132 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d," 6133 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 6134 freq->freq, freq->ht_enabled, freq->vht_enabled, 6135 freq->bandwidth, freq->center_freq1, freq->center_freq2); 6136 msg = nlmsg_alloc(); 6137 if (!msg) 6138 return -1; 6139 6140 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 6141 6142 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6143 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); 6144 if (freq->vht_enabled) { 6145 switch (freq->bandwidth) { 6146 case 20: 6147 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6148 NL80211_CHAN_WIDTH_20); 6149 break; 6150 case 40: 6151 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6152 NL80211_CHAN_WIDTH_40); 6153 break; 6154 case 80: 6155 if (freq->center_freq2) 6156 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6157 NL80211_CHAN_WIDTH_80P80); 6158 else 6159 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6160 NL80211_CHAN_WIDTH_80); 6161 break; 6162 case 160: 6163 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, 6164 NL80211_CHAN_WIDTH_160); 6165 break; 6166 default: 6167 return -1; 6168 } 6169 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); 6170 if (freq->center_freq2) 6171 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, 6172 freq->center_freq2); 6173 } else if (freq->ht_enabled) { 6174 switch (freq->sec_channel_offset) { 6175 case -1: 6176 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6177 NL80211_CHAN_HT40MINUS); 6178 break; 6179 case 1: 6180 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6181 NL80211_CHAN_HT40PLUS); 6182 break; 6183 default: 6184 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 6185 NL80211_CHAN_HT20); 6186 break; 6187 } 6188 } 6189 6190 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6191 msg = NULL; 6192 if (ret == 0) { 6193 bss->freq = freq->freq; 6194 return 0; 6195 } 6196 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 6197 "%d (%s)", freq->freq, ret, strerror(-ret)); 6198nla_put_failure: 6199 nlmsg_free(msg); 6200 return -1; 6201} 6202 6203 6204static u32 sta_flags_nl80211(int flags) 6205{ 6206 u32 f = 0; 6207 6208 if (flags & WPA_STA_AUTHORIZED) 6209 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 6210 if (flags & WPA_STA_WMM) 6211 f |= BIT(NL80211_STA_FLAG_WME); 6212 if (flags & WPA_STA_SHORT_PREAMBLE) 6213 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 6214 if (flags & WPA_STA_MFP) 6215 f |= BIT(NL80211_STA_FLAG_MFP); 6216 if (flags & WPA_STA_TDLS_PEER) 6217 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 6218 6219 return f; 6220} 6221 6222 6223static int wpa_driver_nl80211_sta_add(void *priv, 6224 struct hostapd_sta_add_params *params) 6225{ 6226 struct i802_bss *bss = priv; 6227 struct wpa_driver_nl80211_data *drv = bss->drv; 6228 struct nl_msg *msg; 6229 struct nl80211_sta_flag_update upd; 6230 int ret = -ENOBUFS; 6231 6232 if ((params->flags & WPA_STA_TDLS_PEER) && 6233 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 6234 return -EOPNOTSUPP; 6235 6236 msg = nlmsg_alloc(); 6237 if (!msg) 6238 return -ENOMEM; 6239 6240 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 6241 params->set ? "Set" : "Add", MAC2STR(params->addr)); 6242 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : 6243 NL80211_CMD_NEW_STATION); 6244 6245 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 6246 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); 6247 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, 6248 params->supp_rates); 6249 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, 6250 params->supp_rates_len); 6251 if (!params->set) { 6252 if (params->aid) { 6253 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 6254 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); 6255 } else { 6256 /* 6257 * cfg80211 validates that AID is non-zero, so we have 6258 * to make this a non-zero value for the TDLS case where 6259 * a dummy STA entry is used for now. 6260 */ 6261 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); 6262 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); 6263 } 6264 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 6265 params->listen_interval); 6266 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 6267 params->listen_interval); 6268 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 6269 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 6270 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); 6271 } 6272 if (params->ht_capabilities) { 6273 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 6274 (u8 *) params->ht_capabilities, 6275 sizeof(*params->ht_capabilities)); 6276 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, 6277 sizeof(*params->ht_capabilities), 6278 params->ht_capabilities); 6279 } 6280 6281 if (params->vht_capabilities) { 6282 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 6283 (u8 *) params->vht_capabilities, 6284 sizeof(*params->vht_capabilities)); 6285 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, 6286 sizeof(*params->vht_capabilities), 6287 params->vht_capabilities); 6288 } 6289 6290 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); 6291 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); 6292 6293 if (params->ext_capab) { 6294 wpa_hexdump(MSG_DEBUG, " * ext_capab", 6295 params->ext_capab, params->ext_capab_len); 6296 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 6297 params->ext_capab_len, params->ext_capab); 6298 } 6299 6300 os_memset(&upd, 0, sizeof(upd)); 6301 upd.mask = sta_flags_nl80211(params->flags); 6302 upd.set = upd.mask; 6303 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 6304 upd.set, upd.mask); 6305 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 6306 6307 if (params->flags & WPA_STA_WMM) { 6308 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 6309 6310 if (!wme) 6311 goto nla_put_failure; 6312 6313 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 6314 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, 6315 params->qosinfo & WMM_QOSINFO_STA_AC_MASK); 6316 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, 6317 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 6318 WMM_QOSINFO_STA_SP_MASK); 6319 nla_nest_end(msg, wme); 6320 } 6321 6322 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6323 msg = NULL; 6324 if (ret) 6325 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 6326 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 6327 strerror(-ret)); 6328 if (ret == -EEXIST) 6329 ret = 0; 6330 nla_put_failure: 6331 nlmsg_free(msg); 6332 return ret; 6333} 6334 6335 6336static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) 6337{ 6338 struct wpa_driver_nl80211_data *drv = bss->drv; 6339 struct nl_msg *msg; 6340 int ret; 6341 6342 msg = nlmsg_alloc(); 6343 if (!msg) 6344 return -ENOMEM; 6345 6346 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 6347 6348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 6349 if_nametoindex(bss->ifname)); 6350 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 6351 6352 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6353 if (ret == -ENOENT) 6354 return 0; 6355 return ret; 6356 nla_put_failure: 6357 nlmsg_free(msg); 6358 return -ENOBUFS; 6359} 6360 6361 6362static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, 6363 int ifidx) 6364{ 6365 struct nl_msg *msg; 6366 6367 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 6368 6369 /* stop listening for EAPOL on this interface */ 6370 del_ifidx(drv, ifidx); 6371 6372 msg = nlmsg_alloc(); 6373 if (!msg) 6374 goto nla_put_failure; 6375 6376 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); 6377 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); 6378 6379 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 6380 return; 6381 msg = NULL; 6382 nla_put_failure: 6383 nlmsg_free(msg); 6384 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 6385} 6386 6387 6388static const char * nl80211_iftype_str(enum nl80211_iftype mode) 6389{ 6390 switch (mode) { 6391 case NL80211_IFTYPE_ADHOC: 6392 return "ADHOC"; 6393 case NL80211_IFTYPE_STATION: 6394 return "STATION"; 6395 case NL80211_IFTYPE_AP: 6396 return "AP"; 6397 case NL80211_IFTYPE_AP_VLAN: 6398 return "AP_VLAN"; 6399 case NL80211_IFTYPE_WDS: 6400 return "WDS"; 6401 case NL80211_IFTYPE_MONITOR: 6402 return "MONITOR"; 6403 case NL80211_IFTYPE_MESH_POINT: 6404 return "MESH_POINT"; 6405 case NL80211_IFTYPE_P2P_CLIENT: 6406 return "P2P_CLIENT"; 6407 case NL80211_IFTYPE_P2P_GO: 6408 return "P2P_GO"; 6409 default: 6410 return "unknown"; 6411 } 6412} 6413 6414 6415static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 6416 const char *ifname, 6417 enum nl80211_iftype iftype, 6418 const u8 *addr, int wds) 6419{ 6420 struct nl_msg *msg; 6421 int ifidx; 6422 int ret = -ENOBUFS; 6423 6424 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 6425 iftype, nl80211_iftype_str(iftype)); 6426 6427 msg = nlmsg_alloc(); 6428 if (!msg) 6429 return -1; 6430 6431 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); 6432 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 6433 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); 6434 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); 6435 6436 if (iftype == NL80211_IFTYPE_MONITOR) { 6437 struct nlattr *flags; 6438 6439 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 6440 if (!flags) 6441 goto nla_put_failure; 6442 6443 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); 6444 6445 nla_nest_end(msg, flags); 6446 } else if (wds) { 6447 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); 6448 } 6449 6450 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6451 msg = NULL; 6452 if (ret) { 6453 nla_put_failure: 6454 nlmsg_free(msg); 6455 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 6456 ifname, ret, strerror(-ret)); 6457 return ret; 6458 } 6459 6460 ifidx = if_nametoindex(ifname); 6461 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 6462 ifname, ifidx); 6463 6464 if (ifidx <= 0) 6465 return -1; 6466 6467 /* start listening for EAPOL on this interface */ 6468 add_ifidx(drv, ifidx); 6469 6470 if (addr && iftype != NL80211_IFTYPE_MONITOR && 6471 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 6472 nl80211_remove_iface(drv, ifidx); 6473 return -1; 6474 } 6475 6476 return ifidx; 6477} 6478 6479 6480static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 6481 const char *ifname, enum nl80211_iftype iftype, 6482 const u8 *addr, int wds) 6483{ 6484 int ret; 6485 6486 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds); 6487 6488 /* if error occurred and interface exists already */ 6489 if (ret == -ENFILE && if_nametoindex(ifname)) { 6490 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 6491 6492 /* Try to remove the interface that was already there. */ 6493 nl80211_remove_iface(drv, if_nametoindex(ifname)); 6494 6495 /* Try to create the interface again */ 6496 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 6497 wds); 6498 } 6499 6500 if (ret >= 0 && is_p2p_interface(iftype)) 6501 nl80211_disable_11b_rates(drv, ret, 1); 6502 6503 return ret; 6504} 6505 6506 6507static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) 6508{ 6509 struct ieee80211_hdr *hdr; 6510 u16 fc; 6511 union wpa_event_data event; 6512 6513 hdr = (struct ieee80211_hdr *) buf; 6514 fc = le_to_host16(hdr->frame_control); 6515 6516 os_memset(&event, 0, sizeof(event)); 6517 event.tx_status.type = WLAN_FC_GET_TYPE(fc); 6518 event.tx_status.stype = WLAN_FC_GET_STYPE(fc); 6519 event.tx_status.dst = hdr->addr1; 6520 event.tx_status.data = buf; 6521 event.tx_status.data_len = len; 6522 event.tx_status.ack = ok; 6523 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); 6524} 6525 6526 6527static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, 6528 u8 *buf, size_t len) 6529{ 6530 struct ieee80211_hdr *hdr = (void *)buf; 6531 u16 fc; 6532 union wpa_event_data event; 6533 6534 if (len < sizeof(*hdr)) 6535 return; 6536 6537 fc = le_to_host16(hdr->frame_control); 6538 6539 os_memset(&event, 0, sizeof(event)); 6540 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); 6541 event.rx_from_unknown.addr = hdr->addr2; 6542 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == 6543 (WLAN_FC_FROMDS | WLAN_FC_TODS); 6544 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); 6545} 6546 6547 6548static void handle_frame(struct wpa_driver_nl80211_data *drv, 6549 u8 *buf, size_t len, int datarate, int ssi_signal) 6550{ 6551 struct ieee80211_hdr *hdr; 6552 u16 fc; 6553 union wpa_event_data event; 6554 6555 hdr = (struct ieee80211_hdr *) buf; 6556 fc = le_to_host16(hdr->frame_control); 6557 6558 switch (WLAN_FC_GET_TYPE(fc)) { 6559 case WLAN_FC_TYPE_MGMT: 6560 os_memset(&event, 0, sizeof(event)); 6561 event.rx_mgmt.frame = buf; 6562 event.rx_mgmt.frame_len = len; 6563 event.rx_mgmt.datarate = datarate; 6564 event.rx_mgmt.ssi_signal = ssi_signal; 6565 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 6566 break; 6567 case WLAN_FC_TYPE_CTRL: 6568 /* can only get here with PS-Poll frames */ 6569 wpa_printf(MSG_DEBUG, "CTRL"); 6570 from_unknown_sta(drv, buf, len); 6571 break; 6572 case WLAN_FC_TYPE_DATA: 6573 from_unknown_sta(drv, buf, len); 6574 break; 6575 } 6576} 6577 6578 6579static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) 6580{ 6581 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6582 int len; 6583 unsigned char buf[3000]; 6584 struct ieee80211_radiotap_iterator iter; 6585 int ret; 6586 int datarate = 0, ssi_signal = 0; 6587 int injected = 0, failed = 0, rxflags = 0; 6588 6589 len = recv(sock, buf, sizeof(buf), 0); 6590 if (len < 0) { 6591 perror("recv"); 6592 return; 6593 } 6594 6595 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { 6596 printf("received invalid radiotap frame\n"); 6597 return; 6598 } 6599 6600 while (1) { 6601 ret = ieee80211_radiotap_iterator_next(&iter); 6602 if (ret == -ENOENT) 6603 break; 6604 if (ret) { 6605 printf("received invalid radiotap frame (%d)\n", ret); 6606 return; 6607 } 6608 switch (iter.this_arg_index) { 6609 case IEEE80211_RADIOTAP_FLAGS: 6610 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) 6611 len -= 4; 6612 break; 6613 case IEEE80211_RADIOTAP_RX_FLAGS: 6614 rxflags = 1; 6615 break; 6616 case IEEE80211_RADIOTAP_TX_FLAGS: 6617 injected = 1; 6618 failed = le_to_host16((*(uint16_t *) iter.this_arg)) & 6619 IEEE80211_RADIOTAP_F_TX_FAIL; 6620 break; 6621 case IEEE80211_RADIOTAP_DATA_RETRIES: 6622 break; 6623 case IEEE80211_RADIOTAP_CHANNEL: 6624 /* TODO: convert from freq/flags to channel number */ 6625 break; 6626 case IEEE80211_RADIOTAP_RATE: 6627 datarate = *iter.this_arg * 5; 6628 break; 6629 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: 6630 ssi_signal = (s8) *iter.this_arg; 6631 break; 6632 } 6633 } 6634 6635 if (rxflags && injected) 6636 return; 6637 6638 if (!injected) 6639 handle_frame(drv, buf + iter.max_length, 6640 len - iter.max_length, datarate, ssi_signal); 6641 else 6642 handle_tx_callback(drv->ctx, buf + iter.max_length, 6643 len - iter.max_length, !failed); 6644} 6645 6646 6647/* 6648 * we post-process the filter code later and rewrite 6649 * this to the offset to the last instruction 6650 */ 6651#define PASS 0xFF 6652#define FAIL 0xFE 6653 6654static struct sock_filter msock_filter_insns[] = { 6655 /* 6656 * do a little-endian load of the radiotap length field 6657 */ 6658 /* load lower byte into A */ 6659 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), 6660 /* put it into X (== index register) */ 6661 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6662 /* load upper byte into A */ 6663 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), 6664 /* left-shift it by 8 */ 6665 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), 6666 /* or with X */ 6667 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), 6668 /* put result into X */ 6669 BPF_STMT(BPF_MISC| BPF_TAX, 0), 6670 6671 /* 6672 * Allow management frames through, this also gives us those 6673 * management frames that we sent ourselves with status 6674 */ 6675 /* load the lower byte of the IEEE 802.11 frame control field */ 6676 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6677 /* mask off frame type and version */ 6678 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), 6679 /* accept frame if it's both 0, fall through otherwise */ 6680 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), 6681 6682 /* 6683 * TODO: add a bit to radiotap RX flags that indicates 6684 * that the sending station is not associated, then 6685 * add a filter here that filters on our DA and that flag 6686 * to allow us to deauth frames to that bad station. 6687 * 6688 * For now allow all To DS data frames through. 6689 */ 6690 /* load the IEEE 802.11 frame control field */ 6691 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), 6692 /* mask off frame type, version and DS status */ 6693 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), 6694 /* accept frame if version 0, type 2 and To DS, fall through otherwise 6695 */ 6696 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), 6697 6698#if 0 6699 /* 6700 * drop non-data frames 6701 */ 6702 /* load the lower byte of the frame control field */ 6703 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6704 /* mask off QoS bit */ 6705 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), 6706 /* drop non-data frames */ 6707 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), 6708#endif 6709 /* load the upper byte of the frame control field */ 6710 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), 6711 /* mask off toDS/fromDS */ 6712 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), 6713 /* accept WDS frames */ 6714 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), 6715 6716 /* 6717 * add header length to index 6718 */ 6719 /* load the lower byte of the frame control field */ 6720 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), 6721 /* mask off QoS bit */ 6722 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), 6723 /* right shift it by 6 to give 0 or 2 */ 6724 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), 6725 /* add data frame header length */ 6726 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), 6727 /* add index, was start of 802.11 header */ 6728 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), 6729 /* move to index, now start of LL header */ 6730 BPF_STMT(BPF_MISC | BPF_TAX, 0), 6731 6732 /* 6733 * Accept empty data frames, we use those for 6734 * polling activity. 6735 */ 6736 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), 6737 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), 6738 6739 /* 6740 * Accept EAPOL frames 6741 */ 6742 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), 6743 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), 6744 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), 6745 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), 6746 6747 /* keep these last two statements or change the code below */ 6748 /* return 0 == "DROP" */ 6749 BPF_STMT(BPF_RET | BPF_K, 0), 6750 /* return ~0 == "keep all" */ 6751 BPF_STMT(BPF_RET | BPF_K, ~0), 6752}; 6753 6754static struct sock_fprog msock_filter = { 6755 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]), 6756 .filter = msock_filter_insns, 6757}; 6758 6759 6760static int add_monitor_filter(int s) 6761{ 6762 int idx; 6763 6764 /* rewrite all PASS/FAIL jump offsets */ 6765 for (idx = 0; idx < msock_filter.len; idx++) { 6766 struct sock_filter *insn = &msock_filter_insns[idx]; 6767 6768 if (BPF_CLASS(insn->code) == BPF_JMP) { 6769 if (insn->code == (BPF_JMP|BPF_JA)) { 6770 if (insn->k == PASS) 6771 insn->k = msock_filter.len - idx - 2; 6772 else if (insn->k == FAIL) 6773 insn->k = msock_filter.len - idx - 3; 6774 } 6775 6776 if (insn->jt == PASS) 6777 insn->jt = msock_filter.len - idx - 2; 6778 else if (insn->jt == FAIL) 6779 insn->jt = msock_filter.len - idx - 3; 6780 6781 if (insn->jf == PASS) 6782 insn->jf = msock_filter.len - idx - 2; 6783 else if (insn->jf == FAIL) 6784 insn->jf = msock_filter.len - idx - 3; 6785 } 6786 } 6787 6788 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, 6789 &msock_filter, sizeof(msock_filter))) { 6790 perror("SO_ATTACH_FILTER"); 6791 return -1; 6792 } 6793 6794 return 0; 6795} 6796 6797 6798static void nl80211_remove_monitor_interface( 6799 struct wpa_driver_nl80211_data *drv) 6800{ 6801 drv->monitor_refcount--; 6802 if (drv->monitor_refcount > 0) 6803 return; 6804 6805 if (drv->monitor_ifidx >= 0) { 6806 nl80211_remove_iface(drv, drv->monitor_ifidx); 6807 drv->monitor_ifidx = -1; 6808 } 6809 if (drv->monitor_sock >= 0) { 6810 eloop_unregister_read_sock(drv->monitor_sock); 6811 close(drv->monitor_sock); 6812 drv->monitor_sock = -1; 6813 } 6814} 6815 6816 6817static int 6818nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) 6819{ 6820 char buf[IFNAMSIZ]; 6821 struct sockaddr_ll ll; 6822 int optval; 6823 socklen_t optlen; 6824 6825 if (drv->monitor_ifidx >= 0) { 6826 drv->monitor_refcount++; 6827 return 0; 6828 } 6829 6830 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) { 6831 /* 6832 * P2P interface name is of the format p2p-%s-%d. For monitor 6833 * interface name corresponding to P2P GO, replace "p2p-" with 6834 * "mon-" to retain the same interface name length and to 6835 * indicate that it is a monitor interface. 6836 */ 6837 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4); 6838 } else { 6839 /* Non-P2P interface with AP functionality. */ 6840 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname); 6841 } 6842 6843 buf[IFNAMSIZ - 1] = '\0'; 6844 6845 drv->monitor_ifidx = 6846 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, 6847 0); 6848 6849 if (drv->monitor_ifidx == -EOPNOTSUPP) { 6850 /* 6851 * This is backward compatibility for a few versions of 6852 * the kernel only that didn't advertise the right 6853 * attributes for the only driver that then supported 6854 * AP mode w/o monitor -- ath6kl. 6855 */ 6856 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " 6857 "monitor interface type - try to run without it"); 6858 drv->device_ap_sme = 1; 6859 } 6860 6861 if (drv->monitor_ifidx < 0) 6862 return -1; 6863 6864 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) 6865 goto error; 6866 6867 memset(&ll, 0, sizeof(ll)); 6868 ll.sll_family = AF_PACKET; 6869 ll.sll_ifindex = drv->monitor_ifidx; 6870 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); 6871 if (drv->monitor_sock < 0) { 6872 perror("socket[PF_PACKET,SOCK_RAW]"); 6873 goto error; 6874 } 6875 6876 if (add_monitor_filter(drv->monitor_sock)) { 6877 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " 6878 "interface; do filtering in user space"); 6879 /* This works, but will cost in performance. */ 6880 } 6881 6882 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { 6883 perror("monitor socket bind"); 6884 goto error; 6885 } 6886 6887 optlen = sizeof(optval); 6888 optval = 20; 6889 if (setsockopt 6890 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { 6891 perror("Failed to set socket priority"); 6892 goto error; 6893 } 6894 6895 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, 6896 drv, NULL)) { 6897 printf("Could not register monitor read socket\n"); 6898 goto error; 6899 } 6900 6901 return 0; 6902 error: 6903 nl80211_remove_monitor_interface(drv); 6904 return -1; 6905} 6906 6907 6908static int nl80211_setup_ap(struct i802_bss *bss) 6909{ 6910 struct wpa_driver_nl80211_data *drv = bss->drv; 6911 6912 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d " 6913 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor); 6914 6915 /* 6916 * Disable Probe Request reporting unless we need it in this way for 6917 * devices that include the AP SME, in the other case (unless using 6918 * monitor iface) we'll get it through the nl_mgmt socket instead. 6919 */ 6920 if (!drv->device_ap_sme) 6921 wpa_driver_nl80211_probe_req_report(bss, 0); 6922 6923 if (!drv->device_ap_sme && !drv->use_monitor) 6924 if (nl80211_mgmt_subscribe_ap(bss)) 6925 return -1; 6926 6927 if (drv->device_ap_sme && !drv->use_monitor) 6928 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6929 return -1; 6930 6931 if (!drv->device_ap_sme && drv->use_monitor && 6932 nl80211_create_monitor_interface(drv) && 6933 !drv->device_ap_sme) 6934 return -1; 6935 6936#ifdef ANDROID_P2P 6937 if (drv->device_ap_sme && drv->use_monitor) 6938 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 6939 return -1; 6940 6941 if (drv->use_monitor && 6942 nl80211_create_monitor_interface(drv)) 6943 return -1; 6944#endif 6945 6946 if (drv->device_ap_sme && 6947 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 6948 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 6949 "Probe Request frame reporting in AP mode"); 6950 /* Try to survive without this */ 6951 } 6952 6953 return 0; 6954} 6955 6956 6957static void nl80211_teardown_ap(struct i802_bss *bss) 6958{ 6959 struct wpa_driver_nl80211_data *drv = bss->drv; 6960 6961 if (drv->device_ap_sme) { 6962 wpa_driver_nl80211_probe_req_report(bss, 0); 6963 if (!drv->use_monitor) 6964 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 6965 } else if (drv->use_monitor) 6966 nl80211_remove_monitor_interface(drv); 6967 else 6968 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 6969 6970 bss->beacon_set = 0; 6971} 6972 6973 6974static int nl80211_send_eapol_data(struct i802_bss *bss, 6975 const u8 *addr, const u8 *data, 6976 size_t data_len) 6977{ 6978 struct sockaddr_ll ll; 6979 int ret; 6980 6981 if (bss->drv->eapol_tx_sock < 0) { 6982 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 6983 return -1; 6984 } 6985 6986 os_memset(&ll, 0, sizeof(ll)); 6987 ll.sll_family = AF_PACKET; 6988 ll.sll_ifindex = bss->ifindex; 6989 ll.sll_protocol = htons(ETH_P_PAE); 6990 ll.sll_halen = ETH_ALEN; 6991 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 6992 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 6993 (struct sockaddr *) &ll, sizeof(ll)); 6994 if (ret < 0) 6995 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 6996 strerror(errno)); 6997 6998 return ret; 6999} 7000 7001 7002static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 7003 7004static int wpa_driver_nl80211_hapd_send_eapol( 7005 void *priv, const u8 *addr, const u8 *data, 7006 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 7007{ 7008 struct i802_bss *bss = priv; 7009 struct wpa_driver_nl80211_data *drv = bss->drv; 7010 struct ieee80211_hdr *hdr; 7011 size_t len; 7012 u8 *pos; 7013 int res; 7014 int qos = flags & WPA_STA_WMM; 7015#ifndef ANDROID_P2P 7016 if (drv->device_ap_sme || !drv->use_monitor) 7017#else 7018 if (drv->device_ap_sme && !drv->use_monitor) 7019#endif 7020 return nl80211_send_eapol_data(bss, addr, data, data_len); 7021 7022 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 7023 data_len; 7024 hdr = os_zalloc(len); 7025 if (hdr == NULL) { 7026 printf("malloc() failed for i802_send_data(len=%lu)\n", 7027 (unsigned long) len); 7028 return -1; 7029 } 7030 7031 hdr->frame_control = 7032 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 7033 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 7034 if (encrypt) 7035 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 7036 if (qos) { 7037 hdr->frame_control |= 7038 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 7039 } 7040 7041 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7042 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7043 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7044 pos = (u8 *) (hdr + 1); 7045 7046 if (qos) { 7047 /* Set highest priority in QoS header */ 7048 pos[0] = 7; 7049 pos[1] = 0; 7050 pos += 2; 7051 } 7052 7053 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 7054 pos += sizeof(rfc1042_header); 7055 WPA_PUT_BE16(pos, ETH_P_PAE); 7056 pos += 2; 7057 memcpy(pos, data, data_len); 7058 7059 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 7060 0, 0, 0, 0); 7061 if (res < 0) { 7062 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 7063 "failed: %d (%s)", 7064 (unsigned long) len, errno, strerror(errno)); 7065 } 7066 os_free(hdr); 7067 7068 return res; 7069} 7070 7071 7072static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 7073 int total_flags, 7074 int flags_or, int flags_and) 7075{ 7076 struct i802_bss *bss = priv; 7077 struct wpa_driver_nl80211_data *drv = bss->drv; 7078 struct nl_msg *msg; 7079 struct nlattr *flags; 7080 struct nl80211_sta_flag_update upd; 7081 7082 msg = nlmsg_alloc(); 7083 if (!msg) 7084 return -ENOMEM; 7085 7086 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7087 7088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7089 if_nametoindex(bss->ifname)); 7090 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7091 7092 /* 7093 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 7094 * can be removed eventually. 7095 */ 7096 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 7097 if (!flags) 7098 goto nla_put_failure; 7099 if (total_flags & WPA_STA_AUTHORIZED) 7100 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); 7101 7102 if (total_flags & WPA_STA_WMM) 7103 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); 7104 7105 if (total_flags & WPA_STA_SHORT_PREAMBLE) 7106 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); 7107 7108 if (total_flags & WPA_STA_MFP) 7109 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); 7110 7111 if (total_flags & WPA_STA_TDLS_PEER) 7112 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); 7113 7114 nla_nest_end(msg, flags); 7115 7116 os_memset(&upd, 0, sizeof(upd)); 7117 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 7118 upd.set = sta_flags_nl80211(flags_or); 7119 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7120 7121 return send_and_recv_msgs(drv, msg, NULL, NULL); 7122 nla_put_failure: 7123 nlmsg_free(msg); 7124 return -ENOBUFS; 7125} 7126 7127 7128static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 7129 struct wpa_driver_associate_params *params) 7130{ 7131 enum nl80211_iftype nlmode, old_mode; 7132 struct hostapd_freq_params freq = { 7133 .freq = params->freq, 7134 }; 7135 7136 if (params->p2p) { 7137 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 7138 "group (GO)"); 7139 nlmode = NL80211_IFTYPE_P2P_GO; 7140 } else 7141 nlmode = NL80211_IFTYPE_AP; 7142 7143 old_mode = drv->nlmode; 7144 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) { 7145 nl80211_remove_monitor_interface(drv); 7146 return -1; 7147 } 7148 7149 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) { 7150 if (old_mode != nlmode) 7151 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode); 7152 nl80211_remove_monitor_interface(drv); 7153 return -1; 7154 } 7155 7156 return 0; 7157} 7158 7159 7160static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) 7161{ 7162 struct nl_msg *msg; 7163 int ret = -1; 7164 7165 msg = nlmsg_alloc(); 7166 if (!msg) 7167 return -1; 7168 7169 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); 7170 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7171 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7172 msg = NULL; 7173 if (ret) { 7174 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 7175 "(%s)", ret, strerror(-ret)); 7176 goto nla_put_failure; 7177 } 7178 7179 ret = 0; 7180 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); 7181 7182nla_put_failure: 7183 nlmsg_free(msg); 7184 return ret; 7185} 7186 7187 7188static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 7189 struct wpa_driver_associate_params *params) 7190{ 7191 struct nl_msg *msg; 7192 int ret = -1; 7193 int count = 0; 7194 7195 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 7196 7197 if (wpa_driver_nl80211_set_mode(&drv->first_bss, 7198 NL80211_IFTYPE_ADHOC)) { 7199 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 7200 "IBSS mode"); 7201 return -1; 7202 } 7203 7204retry: 7205 msg = nlmsg_alloc(); 7206 if (!msg) 7207 return -1; 7208 7209 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); 7210 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7211 7212 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 7213 goto nla_put_failure; 7214 7215 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7216 params->ssid, params->ssid_len); 7217 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7218 params->ssid); 7219 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7220 drv->ssid_len = params->ssid_len; 7221 7222 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7223 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7224 7225 ret = nl80211_set_conn_keys(params, msg); 7226 if (ret) 7227 goto nla_put_failure; 7228 7229 if (params->bssid && params->fixed_bssid) { 7230 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 7231 MAC2STR(params->bssid)); 7232 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7233 } 7234 7235 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7236 params->key_mgmt_suite == KEY_MGMT_PSK || 7237 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 || 7238 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) { 7239 wpa_printf(MSG_DEBUG, " * control port"); 7240 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7241 } 7242 7243 if (params->wpa_ie) { 7244 wpa_hexdump(MSG_DEBUG, 7245 " * Extra IEs for Beacon/Probe Response frames", 7246 params->wpa_ie, params->wpa_ie_len); 7247 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7248 params->wpa_ie); 7249 } 7250 7251 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7252 msg = NULL; 7253 if (ret) { 7254 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 7255 ret, strerror(-ret)); 7256 count++; 7257 if (ret == -EALREADY && count == 1) { 7258 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 7259 "forced leave"); 7260 nl80211_leave_ibss(drv); 7261 nlmsg_free(msg); 7262 goto retry; 7263 } 7264 7265 goto nla_put_failure; 7266 } 7267 ret = 0; 7268 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); 7269 7270nla_put_failure: 7271 nlmsg_free(msg); 7272 return ret; 7273} 7274 7275 7276static int wpa_driver_nl80211_try_connect( 7277 struct wpa_driver_nl80211_data *drv, 7278 struct wpa_driver_associate_params *params) 7279{ 7280 struct nl_msg *msg; 7281 enum nl80211_auth_type type; 7282 int ret = 0; 7283 int algs; 7284 7285 msg = nlmsg_alloc(); 7286 if (!msg) 7287 return -1; 7288 7289 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 7290 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); 7291 7292 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7293 if (params->bssid) { 7294 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7295 MAC2STR(params->bssid)); 7296 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7297 } 7298 if (params->freq) { 7299 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7300 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7301 } 7302 if (params->bg_scan_period >= 0) { 7303 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7304 params->bg_scan_period); 7305 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7306 params->bg_scan_period); 7307 } 7308 if (params->ssid) { 7309 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7310 params->ssid, params->ssid_len); 7311 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7312 params->ssid); 7313 if (params->ssid_len > sizeof(drv->ssid)) 7314 goto nla_put_failure; 7315 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7316 drv->ssid_len = params->ssid_len; 7317 } 7318 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7319 if (params->wpa_ie) 7320 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7321 params->wpa_ie); 7322 7323 algs = 0; 7324 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7325 algs++; 7326 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7327 algs++; 7328 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7329 algs++; 7330 if (algs > 1) { 7331 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 7332 "selection"); 7333 goto skip_auth_type; 7334 } 7335 7336 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 7337 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 7338 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 7339 type = NL80211_AUTHTYPE_SHARED_KEY; 7340 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 7341 type = NL80211_AUTHTYPE_NETWORK_EAP; 7342 else if (params->auth_alg & WPA_AUTH_ALG_FT) 7343 type = NL80211_AUTHTYPE_FT; 7344 else 7345 goto nla_put_failure; 7346 7347 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 7348 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); 7349 7350skip_auth_type: 7351 if (params->wpa_proto) { 7352 enum nl80211_wpa_versions ver = 0; 7353 7354 if (params->wpa_proto & WPA_PROTO_WPA) 7355 ver |= NL80211_WPA_VERSION_1; 7356 if (params->wpa_proto & WPA_PROTO_RSN) 7357 ver |= NL80211_WPA_VERSION_2; 7358 7359 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 7360 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); 7361 } 7362 7363 if (params->pairwise_suite != CIPHER_NONE) { 7364 int cipher; 7365 7366 switch (params->pairwise_suite) { 7367 case CIPHER_SMS4: 7368 cipher = WLAN_CIPHER_SUITE_SMS4; 7369 break; 7370 case CIPHER_WEP40: 7371 cipher = WLAN_CIPHER_SUITE_WEP40; 7372 break; 7373 case CIPHER_WEP104: 7374 cipher = WLAN_CIPHER_SUITE_WEP104; 7375 break; 7376 case CIPHER_CCMP: 7377 cipher = WLAN_CIPHER_SUITE_CCMP; 7378 break; 7379 case CIPHER_GCMP: 7380 cipher = WLAN_CIPHER_SUITE_GCMP; 7381 break; 7382 case CIPHER_TKIP: 7383 default: 7384 cipher = WLAN_CIPHER_SUITE_TKIP; 7385 break; 7386 } 7387 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7388 } 7389 7390 if (params->group_suite != CIPHER_NONE) { 7391 int cipher; 7392 7393 switch (params->group_suite) { 7394 case CIPHER_SMS4: 7395 cipher = WLAN_CIPHER_SUITE_SMS4; 7396 break; 7397 case CIPHER_WEP40: 7398 cipher = WLAN_CIPHER_SUITE_WEP40; 7399 break; 7400 case CIPHER_WEP104: 7401 cipher = WLAN_CIPHER_SUITE_WEP104; 7402 break; 7403 case CIPHER_CCMP: 7404 cipher = WLAN_CIPHER_SUITE_CCMP; 7405 break; 7406 case CIPHER_GCMP: 7407 cipher = WLAN_CIPHER_SUITE_GCMP; 7408 break; 7409 case CIPHER_TKIP: 7410 default: 7411 cipher = WLAN_CIPHER_SUITE_TKIP; 7412 break; 7413 } 7414 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7415 } 7416 7417 if (params->key_mgmt_suite == KEY_MGMT_802_1X || 7418 params->key_mgmt_suite == KEY_MGMT_PSK || 7419 params->key_mgmt_suite == KEY_MGMT_FT_802_1X || 7420 params->key_mgmt_suite == KEY_MGMT_FT_PSK || 7421 params->key_mgmt_suite == KEY_MGMT_CCKM) { 7422 int mgmt = WLAN_AKM_SUITE_PSK; 7423 7424 switch (params->key_mgmt_suite) { 7425 case KEY_MGMT_CCKM: 7426 mgmt = WLAN_AKM_SUITE_CCKM; 7427 break; 7428 case KEY_MGMT_802_1X: 7429 mgmt = WLAN_AKM_SUITE_8021X; 7430 break; 7431 case KEY_MGMT_FT_802_1X: 7432 mgmt = WLAN_AKM_SUITE_FT_8021X; 7433 break; 7434 case KEY_MGMT_FT_PSK: 7435 mgmt = WLAN_AKM_SUITE_FT_PSK; 7436 break; 7437 case KEY_MGMT_PSK: 7438 default: 7439 mgmt = WLAN_AKM_SUITE_PSK; 7440 break; 7441 } 7442 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); 7443 } 7444 7445#ifdef CONFIG_IEEE80211W 7446 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7447 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7448#endif /* CONFIG_IEEE80211W */ 7449 7450 if (params->disable_ht) 7451 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7452 7453 if (params->htcaps && params->htcaps_mask) { 7454 int sz = sizeof(struct ieee80211_ht_capabilities); 7455 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7456 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7457 params->htcaps_mask); 7458 } 7459 7460#ifdef CONFIG_VHT_OVERRIDES 7461 if (params->disable_vht) { 7462 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7463 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7464 } 7465 7466 if (params->vhtcaps && params->vhtcaps_mask) { 7467 int sz = sizeof(struct ieee80211_vht_capabilities); 7468 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7469 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7470 params->vhtcaps_mask); 7471 } 7472#endif /* CONFIG_VHT_OVERRIDES */ 7473 7474 ret = nl80211_set_conn_keys(params, msg); 7475 if (ret) 7476 goto nla_put_failure; 7477 7478 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7479 msg = NULL; 7480 if (ret) { 7481 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 7482 "(%s)", ret, strerror(-ret)); 7483 goto nla_put_failure; 7484 } 7485 ret = 0; 7486 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); 7487 7488nla_put_failure: 7489 nlmsg_free(msg); 7490 return ret; 7491 7492} 7493 7494 7495static int wpa_driver_nl80211_connect( 7496 struct wpa_driver_nl80211_data *drv, 7497 struct wpa_driver_associate_params *params) 7498{ 7499 int ret = wpa_driver_nl80211_try_connect(drv, params); 7500 if (ret == -EALREADY) { 7501 /* 7502 * cfg80211 does not currently accept new connections if 7503 * we are already connected. As a workaround, force 7504 * disconnection and try again. 7505 */ 7506 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 7507 "disconnecting before reassociation " 7508 "attempt"); 7509 if (wpa_driver_nl80211_disconnect( 7510 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 7511 return -1; 7512 /* Ignore the next local disconnect message. */ 7513 drv->ignore_next_local_disconnect = 1; 7514 ret = wpa_driver_nl80211_try_connect(drv, params); 7515 } 7516 return ret; 7517} 7518 7519 7520static int wpa_driver_nl80211_associate( 7521 void *priv, struct wpa_driver_associate_params *params) 7522{ 7523 struct i802_bss *bss = priv; 7524 struct wpa_driver_nl80211_data *drv = bss->drv; 7525 int ret = -1; 7526 struct nl_msg *msg; 7527 7528 if (params->mode == IEEE80211_MODE_AP) 7529 return wpa_driver_nl80211_ap(drv, params); 7530 7531 if (params->mode == IEEE80211_MODE_IBSS) 7532 return wpa_driver_nl80211_ibss(drv, params); 7533 7534 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 7535 enum nl80211_iftype nlmode = params->p2p ? 7536 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 7537 7538 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 7539 return -1; 7540 return wpa_driver_nl80211_connect(drv, params); 7541 } 7542 7543 nl80211_mark_disconnected(drv); 7544 7545 msg = nlmsg_alloc(); 7546 if (!msg) 7547 return -1; 7548 7549 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 7550 drv->ifindex); 7551 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); 7552 7553 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7554 if (params->bssid) { 7555 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 7556 MAC2STR(params->bssid)); 7557 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); 7558 } 7559 if (params->freq) { 7560 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 7561 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); 7562 drv->assoc_freq = params->freq; 7563 } else 7564 drv->assoc_freq = 0; 7565 if (params->bg_scan_period >= 0) { 7566 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 7567 params->bg_scan_period); 7568 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 7569 params->bg_scan_period); 7570 } 7571 if (params->ssid) { 7572 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 7573 params->ssid, params->ssid_len); 7574 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, 7575 params->ssid); 7576 if (params->ssid_len > sizeof(drv->ssid)) 7577 goto nla_put_failure; 7578 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 7579 drv->ssid_len = params->ssid_len; 7580 } 7581 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 7582 if (params->wpa_ie) 7583 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, 7584 params->wpa_ie); 7585 7586 if (params->pairwise_suite != CIPHER_NONE) { 7587 int cipher; 7588 7589 switch (params->pairwise_suite) { 7590 case CIPHER_WEP40: 7591 cipher = WLAN_CIPHER_SUITE_WEP40; 7592 break; 7593 case CIPHER_WEP104: 7594 cipher = WLAN_CIPHER_SUITE_WEP104; 7595 break; 7596 case CIPHER_CCMP: 7597 cipher = WLAN_CIPHER_SUITE_CCMP; 7598 break; 7599 case CIPHER_GCMP: 7600 cipher = WLAN_CIPHER_SUITE_GCMP; 7601 break; 7602 case CIPHER_TKIP: 7603 default: 7604 cipher = WLAN_CIPHER_SUITE_TKIP; 7605 break; 7606 } 7607 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 7608 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); 7609 } 7610 7611 if (params->group_suite != CIPHER_NONE) { 7612 int cipher; 7613 7614 switch (params->group_suite) { 7615 case CIPHER_WEP40: 7616 cipher = WLAN_CIPHER_SUITE_WEP40; 7617 break; 7618 case CIPHER_WEP104: 7619 cipher = WLAN_CIPHER_SUITE_WEP104; 7620 break; 7621 case CIPHER_CCMP: 7622 cipher = WLAN_CIPHER_SUITE_CCMP; 7623 break; 7624 case CIPHER_GCMP: 7625 cipher = WLAN_CIPHER_SUITE_GCMP; 7626 break; 7627 case CIPHER_TKIP: 7628 default: 7629 cipher = WLAN_CIPHER_SUITE_TKIP; 7630 break; 7631 } 7632 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 7633 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); 7634 } 7635 7636#ifdef CONFIG_IEEE80211W 7637 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) 7638 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); 7639#endif /* CONFIG_IEEE80211W */ 7640 7641 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); 7642 7643 if (params->prev_bssid) { 7644 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 7645 MAC2STR(params->prev_bssid)); 7646 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 7647 params->prev_bssid); 7648 } 7649 7650 if (params->disable_ht) 7651 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); 7652 7653 if (params->htcaps && params->htcaps_mask) { 7654 int sz = sizeof(struct ieee80211_ht_capabilities); 7655 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); 7656 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 7657 params->htcaps_mask); 7658 } 7659 7660#ifdef CONFIG_VHT_OVERRIDES 7661 if (params->disable_vht) { 7662 wpa_printf(MSG_DEBUG, " * VHT disabled"); 7663 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); 7664 } 7665 7666 if (params->vhtcaps && params->vhtcaps_mask) { 7667 int sz = sizeof(struct ieee80211_vht_capabilities); 7668 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); 7669 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 7670 params->vhtcaps_mask); 7671 } 7672#endif /* CONFIG_VHT_OVERRIDES */ 7673 7674 if (params->p2p) 7675 wpa_printf(MSG_DEBUG, " * P2P group"); 7676 7677 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7678 msg = NULL; 7679 if (ret) { 7680 wpa_dbg(drv->ctx, MSG_DEBUG, 7681 "nl80211: MLME command failed (assoc): ret=%d (%s)", 7682 ret, strerror(-ret)); 7683 nl80211_dump_scan(drv); 7684 goto nla_put_failure; 7685 } 7686 ret = 0; 7687 wpa_printf(MSG_DEBUG, "nl80211: Association request send " 7688 "successfully"); 7689 7690nla_put_failure: 7691 nlmsg_free(msg); 7692 return ret; 7693} 7694 7695 7696static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 7697 int ifindex, enum nl80211_iftype mode) 7698{ 7699 struct nl_msg *msg; 7700 int ret = -ENOBUFS; 7701 7702 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 7703 ifindex, mode, nl80211_iftype_str(mode)); 7704 7705 msg = nlmsg_alloc(); 7706 if (!msg) 7707 return -ENOMEM; 7708 7709 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); 7710 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 7711 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); 7712 7713 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7714 msg = NULL; 7715 if (!ret) 7716 return 0; 7717nla_put_failure: 7718 nlmsg_free(msg); 7719 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 7720 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 7721 return ret; 7722} 7723 7724 7725static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 7726 enum nl80211_iftype nlmode) 7727{ 7728 struct wpa_driver_nl80211_data *drv = bss->drv; 7729 int ret = -1; 7730 int i; 7731 int was_ap = is_ap_interface(drv->nlmode); 7732 int res; 7733 7734 res = nl80211_set_mode(drv, drv->ifindex, nlmode); 7735 if (res == 0) { 7736 drv->nlmode = nlmode; 7737 ret = 0; 7738 goto done; 7739 } 7740 7741 if (res == -ENODEV) 7742 return -1; 7743 7744 if (nlmode == drv->nlmode) { 7745 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 7746 "requested mode - ignore error"); 7747 ret = 0; 7748 goto done; /* Already in the requested mode */ 7749 } 7750 7751 /* mac80211 doesn't allow mode changes while the device is up, so 7752 * take the device down, try to set the mode again, and bring the 7753 * device back up. 7754 */ 7755 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 7756 "interface down"); 7757 for (i = 0; i < 10; i++) { 7758 res = linux_set_iface_flags(drv->global->ioctl_sock, 7759 bss->ifname, 0); 7760 if (res == -EACCES || res == -ENODEV) 7761 break; 7762 if (res == 0) { 7763 /* Try to set the mode again while the interface is 7764 * down */ 7765 ret = nl80211_set_mode(drv, drv->ifindex, nlmode); 7766 if (ret == -EACCES) 7767 break; 7768 res = linux_set_iface_flags(drv->global->ioctl_sock, 7769 bss->ifname, 1); 7770 if (res && !ret) 7771 ret = -1; 7772 else if (ret != -EBUSY) 7773 break; 7774 } else 7775 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 7776 "interface down"); 7777 os_sleep(0, 100000); 7778 } 7779 7780 if (!ret) { 7781 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 7782 "interface is down"); 7783 drv->nlmode = nlmode; 7784 drv->ignore_if_down_event = 1; 7785 } 7786 7787done: 7788 if (ret) { 7789 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 7790 "from %d failed", nlmode, drv->nlmode); 7791 return ret; 7792 } 7793 7794 if (is_p2p_interface(nlmode)) 7795 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 7796 else if (drv->disabled_11b_rates) 7797 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 7798 7799 if (is_ap_interface(nlmode)) { 7800 nl80211_mgmt_unsubscribe(bss, "start AP"); 7801 /* Setup additional AP mode functionality if needed */ 7802 if (nl80211_setup_ap(bss)) 7803 return -1; 7804 } else if (was_ap) { 7805 /* Remove additional AP mode functionality */ 7806 nl80211_teardown_ap(bss); 7807 } else { 7808 nl80211_mgmt_unsubscribe(bss, "mode change"); 7809 } 7810 7811 if (!bss->in_deinit && !is_ap_interface(nlmode) && 7812 nl80211_mgmt_subscribe_non_ap(bss) < 0) 7813 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 7814 "frame processing - ignore for now"); 7815 7816 return 0; 7817} 7818 7819 7820static int wpa_driver_nl80211_get_capa(void *priv, 7821 struct wpa_driver_capa *capa) 7822{ 7823 struct i802_bss *bss = priv; 7824 struct wpa_driver_nl80211_data *drv = bss->drv; 7825 if (!drv->has_capability) 7826 return -1; 7827 os_memcpy(capa, &drv->capa, sizeof(*capa)); 7828 if (drv->extended_capa && drv->extended_capa_mask) { 7829 capa->extended_capa = drv->extended_capa; 7830 capa->extended_capa_mask = drv->extended_capa_mask; 7831 capa->extended_capa_len = drv->extended_capa_len; 7832 } 7833 return 0; 7834} 7835 7836 7837static int wpa_driver_nl80211_set_operstate(void *priv, int state) 7838{ 7839 struct i802_bss *bss = priv; 7840 struct wpa_driver_nl80211_data *drv = bss->drv; 7841 7842 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", 7843 __func__, drv->operstate, state, state ? "UP" : "DORMANT"); 7844 drv->operstate = state; 7845 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 7846 state ? IF_OPER_UP : IF_OPER_DORMANT); 7847} 7848 7849 7850static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 7851{ 7852 struct i802_bss *bss = priv; 7853 struct wpa_driver_nl80211_data *drv = bss->drv; 7854 struct nl_msg *msg; 7855 struct nl80211_sta_flag_update upd; 7856 7857 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 7858 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 7859 7860 msg = nlmsg_alloc(); 7861 if (!msg) 7862 return -ENOMEM; 7863 7864 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 7865 7866 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 7867 if_nametoindex(bss->ifname)); 7868 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); 7869 7870 os_memset(&upd, 0, sizeof(upd)); 7871 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 7872 if (authorized) 7873 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 7874 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); 7875 7876 return send_and_recv_msgs(drv, msg, NULL, NULL); 7877 nla_put_failure: 7878 nlmsg_free(msg); 7879 return -ENOBUFS; 7880} 7881 7882 7883/* Set kernel driver on given frequency (MHz) */ 7884static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 7885{ 7886 struct i802_bss *bss = priv; 7887 return wpa_driver_nl80211_set_freq(bss, freq); 7888} 7889 7890 7891#if defined(HOSTAPD) || defined(CONFIG_AP) 7892 7893static inline int min_int(int a, int b) 7894{ 7895 if (a < b) 7896 return a; 7897 return b; 7898} 7899 7900 7901static int get_key_handler(struct nl_msg *msg, void *arg) 7902{ 7903 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7904 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7905 7906 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7907 genlmsg_attrlen(gnlh, 0), NULL); 7908 7909 /* 7910 * TODO: validate the key index and mac address! 7911 * Otherwise, there's a race condition as soon as 7912 * the kernel starts sending key notifications. 7913 */ 7914 7915 if (tb[NL80211_ATTR_KEY_SEQ]) 7916 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 7917 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 7918 return NL_SKIP; 7919} 7920 7921 7922static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 7923 int idx, u8 *seq) 7924{ 7925 struct i802_bss *bss = priv; 7926 struct wpa_driver_nl80211_data *drv = bss->drv; 7927 struct nl_msg *msg; 7928 7929 msg = nlmsg_alloc(); 7930 if (!msg) 7931 return -ENOMEM; 7932 7933 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); 7934 7935 if (addr) 7936 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 7937 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); 7938 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); 7939 7940 memset(seq, 0, 6); 7941 7942 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 7943 nla_put_failure: 7944 nlmsg_free(msg); 7945 return -ENOBUFS; 7946} 7947 7948 7949static int i802_set_rts(void *priv, int rts) 7950{ 7951 struct i802_bss *bss = priv; 7952 struct wpa_driver_nl80211_data *drv = bss->drv; 7953 struct nl_msg *msg; 7954 int ret = -ENOBUFS; 7955 u32 val; 7956 7957 msg = nlmsg_alloc(); 7958 if (!msg) 7959 return -ENOMEM; 7960 7961 if (rts >= 2347) 7962 val = (u32) -1; 7963 else 7964 val = rts; 7965 7966 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 7967 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 7968 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); 7969 7970 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7971 msg = NULL; 7972 if (!ret) 7973 return 0; 7974nla_put_failure: 7975 nlmsg_free(msg); 7976 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 7977 "%d (%s)", rts, ret, strerror(-ret)); 7978 return ret; 7979} 7980 7981 7982static int i802_set_frag(void *priv, int frag) 7983{ 7984 struct i802_bss *bss = priv; 7985 struct wpa_driver_nl80211_data *drv = bss->drv; 7986 struct nl_msg *msg; 7987 int ret = -ENOBUFS; 7988 u32 val; 7989 7990 msg = nlmsg_alloc(); 7991 if (!msg) 7992 return -ENOMEM; 7993 7994 if (frag >= 2346) 7995 val = (u32) -1; 7996 else 7997 val = frag; 7998 7999 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8000 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8001 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); 8002 8003 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8004 msg = NULL; 8005 if (!ret) 8006 return 0; 8007nla_put_failure: 8008 nlmsg_free(msg); 8009 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 8010 "%d: %d (%s)", frag, ret, strerror(-ret)); 8011 return ret; 8012} 8013 8014 8015static int i802_flush(void *priv) 8016{ 8017 struct i802_bss *bss = priv; 8018 struct wpa_driver_nl80211_data *drv = bss->drv; 8019 struct nl_msg *msg; 8020 int res; 8021 8022 msg = nlmsg_alloc(); 8023 if (!msg) 8024 return -1; 8025 8026 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); 8027 8028 /* 8029 * XXX: FIX! this needs to flush all VLANs too 8030 */ 8031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8032 if_nametoindex(bss->ifname)); 8033 8034 res = send_and_recv_msgs(drv, msg, NULL, NULL); 8035 if (res) { 8036 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 8037 "(%s)", res, strerror(-res)); 8038 } 8039 return res; 8040 nla_put_failure: 8041 nlmsg_free(msg); 8042 return -ENOBUFS; 8043} 8044 8045#endif /* HOSTAPD || CONFIG_AP */ 8046 8047 8048static int get_sta_handler(struct nl_msg *msg, void *arg) 8049{ 8050 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8051 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8052 struct hostap_sta_driver_data *data = arg; 8053 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 8054 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 8055 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 8056 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 8057 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 8058 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 8059 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 8060 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 8061 }; 8062 8063 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8064 genlmsg_attrlen(gnlh, 0), NULL); 8065 8066 /* 8067 * TODO: validate the interface and mac address! 8068 * Otherwise, there's a race condition as soon as 8069 * the kernel starts sending station notifications. 8070 */ 8071 8072 if (!tb[NL80211_ATTR_STA_INFO]) { 8073 wpa_printf(MSG_DEBUG, "sta stats missing!"); 8074 return NL_SKIP; 8075 } 8076 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 8077 tb[NL80211_ATTR_STA_INFO], 8078 stats_policy)) { 8079 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 8080 return NL_SKIP; 8081 } 8082 8083 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 8084 data->inactive_msec = 8085 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 8086 if (stats[NL80211_STA_INFO_RX_BYTES]) 8087 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 8088 if (stats[NL80211_STA_INFO_TX_BYTES]) 8089 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 8090 if (stats[NL80211_STA_INFO_RX_PACKETS]) 8091 data->rx_packets = 8092 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 8093 if (stats[NL80211_STA_INFO_TX_PACKETS]) 8094 data->tx_packets = 8095 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 8096 if (stats[NL80211_STA_INFO_TX_FAILED]) 8097 data->tx_retry_failed = 8098 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 8099 8100 return NL_SKIP; 8101} 8102 8103static int i802_read_sta_data(struct i802_bss *bss, 8104 struct hostap_sta_driver_data *data, 8105 const u8 *addr) 8106{ 8107 struct wpa_driver_nl80211_data *drv = bss->drv; 8108 struct nl_msg *msg; 8109 8110 os_memset(data, 0, sizeof(*data)); 8111 msg = nlmsg_alloc(); 8112 if (!msg) 8113 return -ENOMEM; 8114 8115 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); 8116 8117 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8118 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8119 8120 return send_and_recv_msgs(drv, msg, get_sta_handler, data); 8121 nla_put_failure: 8122 nlmsg_free(msg); 8123 return -ENOBUFS; 8124} 8125 8126 8127#if defined(HOSTAPD) || defined(CONFIG_AP) 8128 8129static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 8130 int cw_min, int cw_max, int burst_time) 8131{ 8132 struct i802_bss *bss = priv; 8133 struct wpa_driver_nl80211_data *drv = bss->drv; 8134 struct nl_msg *msg; 8135 struct nlattr *txq, *params; 8136 8137 msg = nlmsg_alloc(); 8138 if (!msg) 8139 return -1; 8140 8141 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); 8142 8143 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 8144 8145 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 8146 if (!txq) 8147 goto nla_put_failure; 8148 8149 /* We are only sending parameters for a single TXQ at a time */ 8150 params = nla_nest_start(msg, 1); 8151 if (!params) 8152 goto nla_put_failure; 8153 8154 switch (queue) { 8155 case 0: 8156 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); 8157 break; 8158 case 1: 8159 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); 8160 break; 8161 case 2: 8162 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); 8163 break; 8164 case 3: 8165 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); 8166 break; 8167 } 8168 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 8169 * 32 usec, so need to convert the value here. */ 8170 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); 8171 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); 8172 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); 8173 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); 8174 8175 nla_nest_end(msg, params); 8176 8177 nla_nest_end(msg, txq); 8178 8179 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 8180 return 0; 8181 msg = NULL; 8182 nla_put_failure: 8183 nlmsg_free(msg); 8184 return -1; 8185} 8186 8187 8188static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 8189 const char *ifname, int vlan_id) 8190{ 8191 struct wpa_driver_nl80211_data *drv = bss->drv; 8192 struct nl_msg *msg; 8193 int ret = -ENOBUFS; 8194 8195 msg = nlmsg_alloc(); 8196 if (!msg) 8197 return -ENOMEM; 8198 8199 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); 8200 8201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, 8202 if_nametoindex(bss->ifname)); 8203 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 8204 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, 8205 if_nametoindex(ifname)); 8206 8207 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8208 msg = NULL; 8209 if (ret < 0) { 8210 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 8211 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 8212 MAC2STR(addr), ifname, vlan_id, ret, 8213 strerror(-ret)); 8214 } 8215 nla_put_failure: 8216 nlmsg_free(msg); 8217 return ret; 8218} 8219 8220 8221static int i802_get_inact_sec(void *priv, const u8 *addr) 8222{ 8223 struct hostap_sta_driver_data data; 8224 int ret; 8225 8226 data.inactive_msec = (unsigned long) -1; 8227 ret = i802_read_sta_data(priv, &data, addr); 8228 if (ret || data.inactive_msec == (unsigned long) -1) 8229 return -1; 8230 return data.inactive_msec / 1000; 8231} 8232 8233 8234static int i802_sta_clear_stats(void *priv, const u8 *addr) 8235{ 8236#if 0 8237 /* TODO */ 8238#endif 8239 return 0; 8240} 8241 8242 8243static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 8244 int reason) 8245{ 8246 struct i802_bss *bss = priv; 8247 struct wpa_driver_nl80211_data *drv = bss->drv; 8248 struct ieee80211_mgmt mgmt; 8249 8250 if (drv->device_ap_sme) 8251 return wpa_driver_nl80211_sta_remove(bss, addr); 8252 8253 memset(&mgmt, 0, sizeof(mgmt)); 8254 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8255 WLAN_FC_STYPE_DEAUTH); 8256 memcpy(mgmt.da, addr, ETH_ALEN); 8257 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8258 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8259 mgmt.u.deauth.reason_code = host_to_le16(reason); 8260 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8261 IEEE80211_HDRLEN + 8262 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 8263 0); 8264} 8265 8266 8267static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 8268 int reason) 8269{ 8270 struct i802_bss *bss = priv; 8271 struct wpa_driver_nl80211_data *drv = bss->drv; 8272 struct ieee80211_mgmt mgmt; 8273 8274 if (drv->device_ap_sme) 8275 return wpa_driver_nl80211_sta_remove(bss, addr); 8276 8277 memset(&mgmt, 0, sizeof(mgmt)); 8278 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 8279 WLAN_FC_STYPE_DISASSOC); 8280 memcpy(mgmt.da, addr, ETH_ALEN); 8281 memcpy(mgmt.sa, own_addr, ETH_ALEN); 8282 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 8283 mgmt.u.disassoc.reason_code = host_to_le16(reason); 8284 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 8285 IEEE80211_HDRLEN + 8286 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 8287 0); 8288} 8289 8290#endif /* HOSTAPD || CONFIG_AP */ 8291 8292#ifdef HOSTAPD 8293 8294static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8295{ 8296 int i; 8297 int *old; 8298 8299 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", 8300 ifidx); 8301 for (i = 0; i < drv->num_if_indices; i++) { 8302 if (drv->if_indices[i] == 0) { 8303 drv->if_indices[i] = ifidx; 8304 return; 8305 } 8306 } 8307 8308 if (drv->if_indices != drv->default_if_indices) 8309 old = drv->if_indices; 8310 else 8311 old = NULL; 8312 8313 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 8314 sizeof(int)); 8315 if (!drv->if_indices) { 8316 if (!old) 8317 drv->if_indices = drv->default_if_indices; 8318 else 8319 drv->if_indices = old; 8320 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 8321 "interfaces"); 8322 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 8323 return; 8324 } else if (!old) 8325 os_memcpy(drv->if_indices, drv->default_if_indices, 8326 sizeof(drv->default_if_indices)); 8327 drv->if_indices[drv->num_if_indices] = ifidx; 8328 drv->num_if_indices++; 8329} 8330 8331 8332static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8333{ 8334 int i; 8335 8336 for (i = 0; i < drv->num_if_indices; i++) { 8337 if (drv->if_indices[i] == ifidx) { 8338 drv->if_indices[i] = 0; 8339 break; 8340 } 8341 } 8342} 8343 8344 8345static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) 8346{ 8347 int i; 8348 8349 for (i = 0; i < drv->num_if_indices; i++) 8350 if (drv->if_indices[i] == ifidx) 8351 return 1; 8352 8353 return 0; 8354} 8355 8356 8357static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 8358 const char *bridge_ifname) 8359{ 8360 struct i802_bss *bss = priv; 8361 struct wpa_driver_nl80211_data *drv = bss->drv; 8362 char name[IFNAMSIZ + 1]; 8363 8364 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 8365 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 8366 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 8367 if (val) { 8368 if (!if_nametoindex(name)) { 8369 if (nl80211_create_iface(drv, name, 8370 NL80211_IFTYPE_AP_VLAN, 8371 bss->addr, 1) < 0) 8372 return -1; 8373 if (bridge_ifname && 8374 linux_br_add_if(drv->global->ioctl_sock, 8375 bridge_ifname, name) < 0) 8376 return -1; 8377 } 8378 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 8379 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 8380 "interface %s up", name); 8381 } 8382 return i802_set_sta_vlan(priv, addr, name, 0); 8383 } else { 8384 if (bridge_ifname) 8385 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 8386 name); 8387 8388 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 8389 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, 8390 name); 8391 } 8392} 8393 8394 8395static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 8396{ 8397 struct wpa_driver_nl80211_data *drv = eloop_ctx; 8398 struct sockaddr_ll lladdr; 8399 unsigned char buf[3000]; 8400 int len; 8401 socklen_t fromlen = sizeof(lladdr); 8402 8403 len = recvfrom(sock, buf, sizeof(buf), 0, 8404 (struct sockaddr *)&lladdr, &fromlen); 8405 if (len < 0) { 8406 perror("recv"); 8407 return; 8408 } 8409 8410 if (have_ifidx(drv, lladdr.sll_ifindex)) 8411 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 8412} 8413 8414 8415static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 8416 struct i802_bss *bss, 8417 const char *brname, const char *ifname) 8418{ 8419 int ifindex; 8420 char in_br[IFNAMSIZ]; 8421 8422 os_strlcpy(bss->brname, brname, IFNAMSIZ); 8423 ifindex = if_nametoindex(brname); 8424 if (ifindex == 0) { 8425 /* 8426 * Bridge was configured, but the bridge device does 8427 * not exist. Try to add it now. 8428 */ 8429 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 8430 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 8431 "bridge interface %s: %s", 8432 brname, strerror(errno)); 8433 return -1; 8434 } 8435 bss->added_bridge = 1; 8436 add_ifidx(drv, if_nametoindex(brname)); 8437 } 8438 8439 if (linux_br_get(in_br, ifname) == 0) { 8440 if (os_strcmp(in_br, brname) == 0) 8441 return 0; /* already in the bridge */ 8442 8443 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 8444 "bridge %s", ifname, in_br); 8445 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 8446 0) { 8447 wpa_printf(MSG_ERROR, "nl80211: Failed to " 8448 "remove interface %s from bridge " 8449 "%s: %s", 8450 ifname, brname, strerror(errno)); 8451 return -1; 8452 } 8453 } 8454 8455 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 8456 ifname, brname); 8457 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 8458 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 8459 "into bridge %s: %s", 8460 ifname, brname, strerror(errno)); 8461 return -1; 8462 } 8463 bss->added_if_into_bridge = 1; 8464 8465 return 0; 8466} 8467 8468 8469static void *i802_init(struct hostapd_data *hapd, 8470 struct wpa_init_params *params) 8471{ 8472 struct wpa_driver_nl80211_data *drv; 8473 struct i802_bss *bss; 8474 size_t i; 8475 char brname[IFNAMSIZ]; 8476 int ifindex, br_ifindex; 8477 int br_added = 0; 8478 8479 bss = wpa_driver_nl80211_init(hapd, params->ifname, 8480 params->global_priv); 8481 if (bss == NULL) 8482 return NULL; 8483 8484 drv = bss->drv; 8485 drv->nlmode = NL80211_IFTYPE_AP; 8486 drv->eapol_sock = -1; 8487 8488 if (linux_br_get(brname, params->ifname) == 0) { 8489 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 8490 params->ifname, brname); 8491 br_ifindex = if_nametoindex(brname); 8492 } else { 8493 brname[0] = '\0'; 8494 br_ifindex = 0; 8495 } 8496 8497 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 8498 drv->if_indices = drv->default_if_indices; 8499 for (i = 0; i < params->num_bridge; i++) { 8500 if (params->bridge[i]) { 8501 ifindex = if_nametoindex(params->bridge[i]); 8502 if (ifindex) 8503 add_ifidx(drv, ifindex); 8504 if (ifindex == br_ifindex) 8505 br_added = 1; 8506 } 8507 } 8508 if (!br_added && br_ifindex && 8509 (params->num_bridge == 0 || !params->bridge[0])) 8510 add_ifidx(drv, br_ifindex); 8511 8512 /* start listening for EAPOL on the default AP interface */ 8513 add_ifidx(drv, drv->ifindex); 8514 8515 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0)) 8516 goto failed; 8517 8518 if (params->bssid) { 8519 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8520 params->bssid)) 8521 goto failed; 8522 } 8523 8524 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) { 8525 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s " 8526 "into AP mode", bss->ifname); 8527 goto failed; 8528 } 8529 8530 if (params->num_bridge && params->bridge[0] && 8531 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) 8532 goto failed; 8533 8534 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) 8535 goto failed; 8536 8537 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 8538 if (drv->eapol_sock < 0) { 8539 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)"); 8540 goto failed; 8541 } 8542 8543 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 8544 { 8545 printf("Could not register read socket for eapol\n"); 8546 goto failed; 8547 } 8548 8549 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8550 params->own_addr)) 8551 goto failed; 8552 8553 memcpy(bss->addr, params->own_addr, ETH_ALEN); 8554 8555 return bss; 8556 8557failed: 8558 wpa_driver_nl80211_deinit(bss); 8559 return NULL; 8560} 8561 8562 8563static void i802_deinit(void *priv) 8564{ 8565 struct i802_bss *bss = priv; 8566 wpa_driver_nl80211_deinit(bss); 8567} 8568 8569#endif /* HOSTAPD */ 8570 8571 8572static enum nl80211_iftype wpa_driver_nl80211_if_type( 8573 enum wpa_driver_if_type type) 8574{ 8575 switch (type) { 8576 case WPA_IF_STATION: 8577 return NL80211_IFTYPE_STATION; 8578 case WPA_IF_P2P_CLIENT: 8579 case WPA_IF_P2P_GROUP: 8580 return NL80211_IFTYPE_P2P_CLIENT; 8581 case WPA_IF_AP_VLAN: 8582 return NL80211_IFTYPE_AP_VLAN; 8583 case WPA_IF_AP_BSS: 8584 return NL80211_IFTYPE_AP; 8585 case WPA_IF_P2P_GO: 8586 return NL80211_IFTYPE_P2P_GO; 8587 } 8588 return -1; 8589} 8590 8591 8592#ifdef CONFIG_P2P 8593 8594static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 8595{ 8596 struct wpa_driver_nl80211_data *drv; 8597 dl_list_for_each(drv, &global->interfaces, 8598 struct wpa_driver_nl80211_data, list) { 8599 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0) 8600 return 1; 8601 } 8602 return 0; 8603} 8604 8605 8606static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, 8607 u8 *new_addr) 8608{ 8609 unsigned int idx; 8610 8611 if (!drv->global) 8612 return -1; 8613 8614 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN); 8615 for (idx = 0; idx < 64; idx++) { 8616 new_addr[0] = drv->first_bss.addr[0] | 0x02; 8617 new_addr[0] ^= idx << 2; 8618 if (!nl80211_addr_in_use(drv->global, new_addr)) 8619 break; 8620 } 8621 if (idx == 64) 8622 return -1; 8623 8624 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " 8625 MACSTR, MAC2STR(new_addr)); 8626 8627 return 0; 8628} 8629 8630#endif /* CONFIG_P2P */ 8631 8632 8633static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 8634 const char *ifname, const u8 *addr, 8635 void *bss_ctx, void **drv_priv, 8636 char *force_ifname, u8 *if_addr, 8637 const char *bridge) 8638{ 8639 struct i802_bss *bss = priv; 8640 struct wpa_driver_nl80211_data *drv = bss->drv; 8641 int ifidx; 8642#ifdef HOSTAPD 8643 struct i802_bss *new_bss = NULL; 8644 8645 if (type == WPA_IF_AP_BSS) { 8646 new_bss = os_zalloc(sizeof(*new_bss)); 8647 if (new_bss == NULL) 8648 return -1; 8649 } 8650#endif /* HOSTAPD */ 8651 8652 if (addr) 8653 os_memcpy(if_addr, addr, ETH_ALEN); 8654 ifidx = nl80211_create_iface(drv, ifname, 8655 wpa_driver_nl80211_if_type(type), addr, 8656 0); 8657 if (ifidx < 0) { 8658#ifdef HOSTAPD 8659 os_free(new_bss); 8660#endif /* HOSTAPD */ 8661 return -1; 8662 } 8663 8664 if (!addr && 8665 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8666 if_addr) < 0) { 8667 nl80211_remove_iface(drv, ifidx); 8668 return -1; 8669 } 8670 8671#ifdef CONFIG_P2P 8672 if (!addr && 8673 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 8674 type == WPA_IF_P2P_GO)) { 8675 /* Enforce unique P2P Interface Address */ 8676 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN]; 8677 8678 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 8679 own_addr) < 0 || 8680 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 8681 new_addr) < 0) { 8682 nl80211_remove_iface(drv, ifidx); 8683 return -1; 8684 } 8685 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) { 8686 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 8687 "for P2P group interface"); 8688 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { 8689 nl80211_remove_iface(drv, ifidx); 8690 return -1; 8691 } 8692 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 8693 new_addr) < 0) { 8694 nl80211_remove_iface(drv, ifidx); 8695 return -1; 8696 } 8697 } 8698 os_memcpy(if_addr, new_addr, ETH_ALEN); 8699 } 8700#endif /* CONFIG_P2P */ 8701 8702#ifdef HOSTAPD 8703 if (bridge && 8704 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 8705 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 8706 "interface %s to a bridge %s", ifname, bridge); 8707 nl80211_remove_iface(drv, ifidx); 8708 os_free(new_bss); 8709 return -1; 8710 } 8711 8712 if (type == WPA_IF_AP_BSS) { 8713 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 8714 { 8715 nl80211_remove_iface(drv, ifidx); 8716 os_free(new_bss); 8717 return -1; 8718 } 8719 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 8720 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 8721 new_bss->ifindex = ifidx; 8722 new_bss->drv = drv; 8723 new_bss->next = drv->first_bss.next; 8724 new_bss->freq = drv->first_bss.freq; 8725 new_bss->ctx = bss_ctx; 8726 drv->first_bss.next = new_bss; 8727 if (drv_priv) 8728 *drv_priv = new_bss; 8729 nl80211_init_bss(new_bss); 8730 8731 /* Subscribe management frames for this WPA_IF_AP_BSS */ 8732 if (nl80211_setup_ap(new_bss)) 8733 return -1; 8734 } 8735#endif /* HOSTAPD */ 8736 8737 if (drv->global) 8738 drv->global->if_add_ifindex = ifidx; 8739 8740 return 0; 8741} 8742 8743 8744static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 8745 enum wpa_driver_if_type type, 8746 const char *ifname) 8747{ 8748 struct wpa_driver_nl80211_data *drv = bss->drv; 8749 int ifindex = if_nametoindex(ifname); 8750 8751 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", 8752 __func__, type, ifname, ifindex); 8753 if (ifindex <= 0) 8754 return -1; 8755 8756 nl80211_remove_iface(drv, ifindex); 8757 8758#ifdef HOSTAPD 8759 if (type != WPA_IF_AP_BSS) 8760 return 0; 8761 8762 if (bss->added_if_into_bridge) { 8763 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 8764 bss->ifname) < 0) 8765 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8766 "interface %s from bridge %s: %s", 8767 bss->ifname, bss->brname, strerror(errno)); 8768 } 8769 if (bss->added_bridge) { 8770 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 8771 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 8772 "bridge %s: %s", 8773 bss->brname, strerror(errno)); 8774 } 8775 8776 if (bss != &drv->first_bss) { 8777 struct i802_bss *tbss; 8778 8779 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) { 8780 if (tbss->next == bss) { 8781 tbss->next = bss->next; 8782 /* Unsubscribe management frames */ 8783 nl80211_teardown_ap(bss); 8784 nl80211_destroy_bss(bss); 8785 os_free(bss); 8786 bss = NULL; 8787 break; 8788 } 8789 } 8790 if (bss) 8791 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 8792 "BSS %p in the list", __func__, bss); 8793 } 8794#endif /* HOSTAPD */ 8795 8796 return 0; 8797} 8798 8799 8800static int cookie_handler(struct nl_msg *msg, void *arg) 8801{ 8802 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8803 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8804 u64 *cookie = arg; 8805 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8806 genlmsg_attrlen(gnlh, 0), NULL); 8807 if (tb[NL80211_ATTR_COOKIE]) 8808 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 8809 return NL_SKIP; 8810} 8811 8812 8813static int nl80211_send_frame_cmd(struct i802_bss *bss, 8814 unsigned int freq, unsigned int wait, 8815 const u8 *buf, size_t buf_len, 8816 u64 *cookie_out, int no_cck, int no_ack, 8817 int offchanok) 8818{ 8819 struct wpa_driver_nl80211_data *drv = bss->drv; 8820 struct nl_msg *msg; 8821 u64 cookie; 8822 int ret = -1; 8823 8824 msg = nlmsg_alloc(); 8825 if (!msg) 8826 return -1; 8827 8828 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 8829 "no_ack=%d offchanok=%d", 8830 freq, wait, no_cck, no_ack, offchanok); 8831 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); 8832 8833 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 8834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8835 if (wait) 8836 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); 8837 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) 8838 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); 8839 if (no_cck) 8840 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); 8841 if (no_ack) 8842 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); 8843 8844 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); 8845 8846 cookie = 0; 8847 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8848 msg = NULL; 8849 if (ret) { 8850 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 8851 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 8852 freq, wait); 8853 goto nla_put_failure; 8854 } 8855 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 8856 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 8857 (long long unsigned int) cookie); 8858 8859 if (cookie_out) 8860 *cookie_out = no_ack ? (u64) -1 : cookie; 8861 8862nla_put_failure: 8863 nlmsg_free(msg); 8864 return ret; 8865} 8866 8867 8868static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 8869 unsigned int freq, 8870 unsigned int wait_time, 8871 const u8 *dst, const u8 *src, 8872 const u8 *bssid, 8873 const u8 *data, size_t data_len, 8874 int no_cck) 8875{ 8876 struct wpa_driver_nl80211_data *drv = bss->drv; 8877 int ret = -1; 8878 u8 *buf; 8879 struct ieee80211_hdr *hdr; 8880 8881 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 8882 "freq=%u MHz wait=%d ms no_cck=%d)", 8883 drv->ifindex, freq, wait_time, no_cck); 8884 8885 buf = os_zalloc(24 + data_len); 8886 if (buf == NULL) 8887 return ret; 8888 os_memcpy(buf + 24, data, data_len); 8889 hdr = (struct ieee80211_hdr *) buf; 8890 hdr->frame_control = 8891 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 8892 os_memcpy(hdr->addr1, dst, ETH_ALEN); 8893 os_memcpy(hdr->addr2, src, ETH_ALEN); 8894 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 8895 8896 if (is_ap_interface(drv->nlmode)) 8897 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 8898 0, freq, no_cck, 1, 8899 wait_time); 8900 else 8901 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 8902 24 + data_len, 8903 &drv->send_action_cookie, 8904 no_cck, 0, 1); 8905 8906 os_free(buf); 8907 return ret; 8908} 8909 8910 8911static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 8912{ 8913 struct i802_bss *bss = priv; 8914 struct wpa_driver_nl80211_data *drv = bss->drv; 8915 struct nl_msg *msg; 8916 int ret; 8917 8918 msg = nlmsg_alloc(); 8919 if (!msg) 8920 return; 8921 8922 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 8923 (long long unsigned int) drv->send_action_cookie); 8924 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); 8925 8926 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8927 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); 8928 8929 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8930 msg = NULL; 8931 if (ret) 8932 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 8933 "(%s)", ret, strerror(-ret)); 8934 8935 nla_put_failure: 8936 nlmsg_free(msg); 8937} 8938 8939 8940static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 8941 unsigned int duration) 8942{ 8943 struct i802_bss *bss = priv; 8944 struct wpa_driver_nl80211_data *drv = bss->drv; 8945 struct nl_msg *msg; 8946 int ret; 8947 u64 cookie; 8948 8949 msg = nlmsg_alloc(); 8950 if (!msg) 8951 return -1; 8952 8953 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); 8954 8955 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 8956 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 8957 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); 8958 8959 cookie = 0; 8960 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 8961 msg = NULL; 8962 if (ret == 0) { 8963 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 8964 "0x%llx for freq=%u MHz duration=%u", 8965 (long long unsigned int) cookie, freq, duration); 8966 drv->remain_on_chan_cookie = cookie; 8967 drv->pending_remain_on_chan = 1; 8968 return 0; 8969 } 8970 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 8971 "(freq=%d duration=%u): %d (%s)", 8972 freq, duration, ret, strerror(-ret)); 8973nla_put_failure: 8974 nlmsg_free(msg); 8975 return -1; 8976} 8977 8978 8979static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 8980{ 8981 struct i802_bss *bss = priv; 8982 struct wpa_driver_nl80211_data *drv = bss->drv; 8983 struct nl_msg *msg; 8984 int ret; 8985 8986 if (!drv->pending_remain_on_chan) { 8987 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 8988 "to cancel"); 8989 return -1; 8990 } 8991 8992 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 8993 "0x%llx", 8994 (long long unsigned int) drv->remain_on_chan_cookie); 8995 8996 msg = nlmsg_alloc(); 8997 if (!msg) 8998 return -1; 8999 9000 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 9001 9002 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9003 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); 9004 9005 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9006 msg = NULL; 9007 if (ret == 0) 9008 return 0; 9009 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 9010 "%d (%s)", ret, strerror(-ret)); 9011nla_put_failure: 9012 nlmsg_free(msg); 9013 return -1; 9014} 9015 9016 9017static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 9018{ 9019 struct wpa_driver_nl80211_data *drv = bss->drv; 9020 9021 if (!report) { 9022 if (bss->nl_preq && drv->device_ap_sme && 9023 is_ap_interface(drv->nlmode)) { 9024 /* 9025 * Do not disable Probe Request reporting that was 9026 * enabled in nl80211_setup_ap(). 9027 */ 9028 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 9029 "Probe Request reporting nl_preq=%p while " 9030 "in AP mode", bss->nl_preq); 9031 } else if (bss->nl_preq) { 9032 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 9033 "reporting nl_preq=%p", bss->nl_preq); 9034 eloop_unregister_read_sock( 9035 nl_socket_get_fd(bss->nl_preq)); 9036 nl_destroy_handles(&bss->nl_preq); 9037 } 9038 return 0; 9039 } 9040 9041 if (bss->nl_preq) { 9042 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 9043 "already on! nl_preq=%p", bss->nl_preq); 9044 return 0; 9045 } 9046 9047 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 9048 if (bss->nl_preq == NULL) 9049 return -1; 9050 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 9051 "reporting nl_preq=%p", bss->nl_preq); 9052 9053 if (nl80211_register_frame(bss, bss->nl_preq, 9054 (WLAN_FC_TYPE_MGMT << 2) | 9055 (WLAN_FC_STYPE_PROBE_REQ << 4), 9056 NULL, 0) < 0) 9057 goto out_err; 9058 9059 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq), 9060 wpa_driver_nl80211_event_receive, bss->nl_cb, 9061 bss->nl_preq); 9062 9063 return 0; 9064 9065 out_err: 9066 nl_destroy_handles(&bss->nl_preq); 9067 return -1; 9068} 9069 9070 9071static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 9072 int ifindex, int disabled) 9073{ 9074 struct nl_msg *msg; 9075 struct nlattr *bands, *band; 9076 int ret; 9077 9078 msg = nlmsg_alloc(); 9079 if (!msg) 9080 return -1; 9081 9082 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); 9083 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); 9084 9085 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 9086 if (!bands) 9087 goto nla_put_failure; 9088 9089 /* 9090 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 9091 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 9092 * rates. All 5 GHz rates are left enabled. 9093 */ 9094 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 9095 if (!band) 9096 goto nla_put_failure; 9097 if (disabled) { 9098 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, 9099 "\x0c\x12\x18\x24\x30\x48\x60\x6c"); 9100 } 9101 nla_nest_end(msg, band); 9102 9103 nla_nest_end(msg, bands); 9104 9105 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9106 msg = NULL; 9107 if (ret) { 9108 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 9109 "(%s)", ret, strerror(-ret)); 9110 } else 9111 drv->disabled_11b_rates = disabled; 9112 9113 return ret; 9114 9115nla_put_failure: 9116 nlmsg_free(msg); 9117 return -1; 9118} 9119 9120 9121static int wpa_driver_nl80211_deinit_ap(void *priv) 9122{ 9123 struct i802_bss *bss = priv; 9124 struct wpa_driver_nl80211_data *drv = bss->drv; 9125 if (!is_ap_interface(drv->nlmode)) 9126 return -1; 9127 wpa_driver_nl80211_del_beacon(drv); 9128 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9129} 9130 9131 9132static int wpa_driver_nl80211_stop_ap(void *priv) 9133{ 9134 struct i802_bss *bss = priv; 9135 struct wpa_driver_nl80211_data *drv = bss->drv; 9136 if (!is_ap_interface(drv->nlmode)) 9137 return -1; 9138 wpa_driver_nl80211_del_beacon(drv); 9139 bss->beacon_set = 0; 9140 return 0; 9141} 9142 9143 9144static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 9145{ 9146 struct i802_bss *bss = priv; 9147 struct wpa_driver_nl80211_data *drv = bss->drv; 9148 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 9149 return -1; 9150 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 9151} 9152 9153 9154static void wpa_driver_nl80211_resume(void *priv) 9155{ 9156 struct i802_bss *bss = priv; 9157 struct wpa_driver_nl80211_data *drv = bss->drv; 9158 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { 9159 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on " 9160 "resume event"); 9161 } 9162} 9163 9164 9165static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, 9166 const u8 *ies, size_t ies_len) 9167{ 9168 struct i802_bss *bss = priv; 9169 struct wpa_driver_nl80211_data *drv = bss->drv; 9170 int ret; 9171 u8 *data, *pos; 9172 size_t data_len; 9173 const u8 *own_addr = bss->addr; 9174 9175 if (action != 1) { 9176 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " 9177 "action %d", action); 9178 return -1; 9179 } 9180 9181 /* 9182 * Action frame payload: 9183 * Category[1] = 6 (Fast BSS Transition) 9184 * Action[1] = 1 (Fast BSS Transition Request) 9185 * STA Address 9186 * Target AP Address 9187 * FT IEs 9188 */ 9189 9190 data_len = 2 + 2 * ETH_ALEN + ies_len; 9191 data = os_malloc(data_len); 9192 if (data == NULL) 9193 return -1; 9194 pos = data; 9195 *pos++ = 0x06; /* FT Action category */ 9196 *pos++ = action; 9197 os_memcpy(pos, own_addr, ETH_ALEN); 9198 pos += ETH_ALEN; 9199 os_memcpy(pos, target_ap, ETH_ALEN); 9200 pos += ETH_ALEN; 9201 os_memcpy(pos, ies, ies_len); 9202 9203 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, 9204 drv->bssid, own_addr, drv->bssid, 9205 data, data_len, 0); 9206 os_free(data); 9207 9208 return ret; 9209} 9210 9211 9212static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 9213{ 9214 struct i802_bss *bss = priv; 9215 struct wpa_driver_nl80211_data *drv = bss->drv; 9216 struct nl_msg *msg; 9217 struct nlattr *cqm; 9218 int ret = -1; 9219 9220 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 9221 "hysteresis=%d", threshold, hysteresis); 9222 9223 msg = nlmsg_alloc(); 9224 if (!msg) 9225 return -1; 9226 9227 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); 9228 9229 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9230 9231 cqm = nla_nest_start(msg, NL80211_ATTR_CQM); 9232 if (cqm == NULL) 9233 goto nla_put_failure; 9234 9235 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); 9236 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); 9237 nla_nest_end(msg, cqm); 9238 9239 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9240 msg = NULL; 9241 9242nla_put_failure: 9243 nlmsg_free(msg); 9244 return ret; 9245} 9246 9247 9248static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 9249{ 9250 struct i802_bss *bss = priv; 9251 struct wpa_driver_nl80211_data *drv = bss->drv; 9252 int res; 9253 9254 os_memset(si, 0, sizeof(*si)); 9255 res = nl80211_get_link_signal(drv, si); 9256 if (res != 0) 9257 return res; 9258 9259 return nl80211_get_link_noise(drv, si); 9260} 9261 9262 9263static int wpa_driver_nl80211_shared_freq(void *priv) 9264{ 9265 struct i802_bss *bss = priv; 9266 struct wpa_driver_nl80211_data *drv = bss->drv; 9267 struct wpa_driver_nl80211_data *driver; 9268 int freq = 0; 9269 9270 /* 9271 * If the same PHY is in connected state with some other interface, 9272 * then retrieve the assoc freq. 9273 */ 9274 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", 9275 drv->phyname); 9276 9277 dl_list_for_each(driver, &drv->global->interfaces, 9278 struct wpa_driver_nl80211_data, list) { 9279 if (drv == driver || 9280 os_strcmp(drv->phyname, driver->phyname) != 0 || 9281#ifdef ANDROID_P2P 9282 (!driver->associated && !is_ap_interface(driver->nlmode))) 9283#else 9284 !driver->associated) 9285#endif 9286 continue; 9287 9288 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " 9289 MACSTR, 9290 driver->phyname, driver->first_bss.ifname, 9291 MAC2STR(driver->first_bss.addr)); 9292 if (is_ap_interface(driver->nlmode)) 9293 freq = driver->first_bss.freq; 9294 else 9295 freq = nl80211_get_assoc_freq(driver); 9296 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", 9297 drv->phyname, freq); 9298 } 9299 9300 if (!freq) 9301 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " 9302 "PHY (%s) in associated state", drv->phyname); 9303 9304 return freq; 9305} 9306 9307 9308static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 9309 int encrypt) 9310{ 9311 struct i802_bss *bss = priv; 9312 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 9313 0, 0, 0, 0); 9314} 9315 9316 9317static int nl80211_set_param(void *priv, const char *param) 9318{ 9319 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 9320 if (param == NULL) 9321 return 0; 9322 9323#ifdef CONFIG_P2P 9324 if (os_strstr(param, "use_p2p_group_interface=1")) { 9325 struct i802_bss *bss = priv; 9326 struct wpa_driver_nl80211_data *drv = bss->drv; 9327 9328 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 9329 "interface"); 9330 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 9331 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 9332 } 9333#ifdef ANDROID_P2P 9334 if(os_strstr(param, "use_multi_chan_concurrent=1")) { 9335 struct i802_bss *bss = priv; 9336 struct wpa_driver_nl80211_data *drv = bss->drv; 9337 wpa_printf(MSG_DEBUG, "nl80211: Use Multi channel " 9338 "concurrency"); 9339 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT; 9340 } 9341#endif 9342#endif /* CONFIG_P2P */ 9343 9344 return 0; 9345} 9346 9347 9348static void * nl80211_global_init(void) 9349{ 9350 struct nl80211_global *global; 9351 struct netlink_config *cfg; 9352 9353 global = os_zalloc(sizeof(*global)); 9354 if (global == NULL) 9355 return NULL; 9356 global->ioctl_sock = -1; 9357 dl_list_init(&global->interfaces); 9358 global->if_add_ifindex = -1; 9359 9360 cfg = os_zalloc(sizeof(*cfg)); 9361 if (cfg == NULL) 9362 goto err; 9363 9364 cfg->ctx = global; 9365 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 9366 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 9367 global->netlink = netlink_init(cfg); 9368 if (global->netlink == NULL) { 9369 os_free(cfg); 9370 goto err; 9371 } 9372 9373 if (wpa_driver_nl80211_init_nl_global(global) < 0) 9374 goto err; 9375 9376 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 9377 if (global->ioctl_sock < 0) { 9378 perror("socket(PF_INET,SOCK_DGRAM)"); 9379 goto err; 9380 } 9381 9382 return global; 9383 9384err: 9385 nl80211_global_deinit(global); 9386 return NULL; 9387} 9388 9389 9390static void nl80211_global_deinit(void *priv) 9391{ 9392 struct nl80211_global *global = priv; 9393 if (global == NULL) 9394 return; 9395 if (!dl_list_empty(&global->interfaces)) { 9396 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 9397 "nl80211_global_deinit", 9398 dl_list_len(&global->interfaces)); 9399 } 9400 9401 if (global->netlink) 9402 netlink_deinit(global->netlink); 9403 9404 nl_destroy_handles(&global->nl); 9405 9406 if (global->nl_event) { 9407 eloop_unregister_read_sock( 9408 nl_socket_get_fd(global->nl_event)); 9409 nl_destroy_handles(&global->nl_event); 9410 } 9411 9412 nl_cb_put(global->nl_cb); 9413 9414 if (global->ioctl_sock >= 0) 9415 close(global->ioctl_sock); 9416 9417 os_free(global); 9418} 9419 9420 9421static const char * nl80211_get_radio_name(void *priv) 9422{ 9423 struct i802_bss *bss = priv; 9424 struct wpa_driver_nl80211_data *drv = bss->drv; 9425 return drv->phyname; 9426} 9427 9428 9429static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 9430 const u8 *pmkid) 9431{ 9432 struct nl_msg *msg; 9433 9434 msg = nlmsg_alloc(); 9435 if (!msg) 9436 return -ENOMEM; 9437 9438 nl80211_cmd(bss->drv, msg, 0, cmd); 9439 9440 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); 9441 if (pmkid) 9442 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); 9443 if (bssid) 9444 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); 9445 9446 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9447 nla_put_failure: 9448 nlmsg_free(msg); 9449 return -ENOBUFS; 9450} 9451 9452 9453static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9454{ 9455 struct i802_bss *bss = priv; 9456 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 9457 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 9458} 9459 9460 9461static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 9462{ 9463 struct i802_bss *bss = priv; 9464 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 9465 MAC2STR(bssid)); 9466 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 9467} 9468 9469 9470static int nl80211_flush_pmkid(void *priv) 9471{ 9472 struct i802_bss *bss = priv; 9473 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 9474 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 9475} 9476 9477 9478static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, 9479 const u8 *replay_ctr) 9480{ 9481 struct i802_bss *bss = priv; 9482 struct wpa_driver_nl80211_data *drv = bss->drv; 9483 struct nlattr *replay_nested; 9484 struct nl_msg *msg; 9485 9486 msg = nlmsg_alloc(); 9487 if (!msg) 9488 return; 9489 9490 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); 9491 9492 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9493 9494 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); 9495 if (!replay_nested) 9496 goto nla_put_failure; 9497 9498 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); 9499 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); 9500 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 9501 replay_ctr); 9502 9503 nla_nest_end(msg, replay_nested); 9504 9505 send_and_recv_msgs(drv, msg, NULL, NULL); 9506 return; 9507 nla_put_failure: 9508 nlmsg_free(msg); 9509} 9510 9511 9512static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 9513 const u8 *addr, int qos) 9514{ 9515 /* send data frame to poll STA and check whether 9516 * this frame is ACKed */ 9517 struct { 9518 struct ieee80211_hdr hdr; 9519 u16 qos_ctl; 9520 } STRUCT_PACKED nulldata; 9521 size_t size; 9522 9523 /* Send data frame to poll STA and check whether this frame is ACKed */ 9524 9525 os_memset(&nulldata, 0, sizeof(nulldata)); 9526 9527 if (qos) { 9528 nulldata.hdr.frame_control = 9529 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9530 WLAN_FC_STYPE_QOS_NULL); 9531 size = sizeof(nulldata); 9532 } else { 9533 nulldata.hdr.frame_control = 9534 IEEE80211_FC(WLAN_FC_TYPE_DATA, 9535 WLAN_FC_STYPE_NULLFUNC); 9536 size = sizeof(struct ieee80211_hdr); 9537 } 9538 9539 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 9540 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 9541 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 9542 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 9543 9544 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 9545 0, 0) < 0) 9546 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 9547 "send poll frame"); 9548} 9549 9550static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 9551 int qos) 9552{ 9553 struct i802_bss *bss = priv; 9554 struct wpa_driver_nl80211_data *drv = bss->drv; 9555 struct nl_msg *msg; 9556 9557 if (!drv->poll_command_supported) { 9558 nl80211_send_null_frame(bss, own_addr, addr, qos); 9559 return; 9560 } 9561 9562 msg = nlmsg_alloc(); 9563 if (!msg) 9564 return; 9565 9566 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); 9567 9568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9569 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); 9570 9571 send_and_recv_msgs(drv, msg, NULL, NULL); 9572 return; 9573 nla_put_failure: 9574 nlmsg_free(msg); 9575} 9576 9577 9578static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 9579{ 9580 struct nl_msg *msg; 9581 9582 msg = nlmsg_alloc(); 9583 if (!msg) 9584 return -ENOMEM; 9585 9586 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); 9587 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 9588 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, 9589 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); 9590 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 9591nla_put_failure: 9592 nlmsg_free(msg); 9593 return -ENOBUFS; 9594} 9595 9596 9597static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 9598 int ctwindow) 9599{ 9600 struct i802_bss *bss = priv; 9601 9602 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 9603 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 9604 9605 if (opp_ps != -1 || ctwindow != -1) 9606#ifdef ANDROID_P2P 9607 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 9608#else 9609 return -1; /* Not yet supported */ 9610#endif 9611 9612 if (legacy_ps == -1) 9613 return 0; 9614 if (legacy_ps != 0 && legacy_ps != 1) 9615 return -1; /* Not yet supported */ 9616 9617 return nl80211_set_power_save(bss, legacy_ps); 9618} 9619 9620 9621static int nl80211_start_radar_detection(void *priv, int freq) 9622{ 9623 struct i802_bss *bss = priv; 9624 struct wpa_driver_nl80211_data *drv = bss->drv; 9625 struct nl_msg *msg; 9626 int ret; 9627 9628 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)"); 9629 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 9630 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 9631 "detection"); 9632 return -1; 9633 } 9634 9635 msg = nlmsg_alloc(); 9636 if (!msg) 9637 return -1; 9638 9639 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); 9640 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9641 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); 9642 9643 /* only HT20 is supported at this point */ 9644 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20); 9645 9646 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9647 if (ret == 0) 9648 return 0; 9649 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 9650 "%d (%s)", ret, strerror(-ret)); 9651nla_put_failure: 9652 return -1; 9653} 9654 9655#ifdef CONFIG_TDLS 9656 9657static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 9658 u8 dialog_token, u16 status_code, 9659 const u8 *buf, size_t len) 9660{ 9661 struct i802_bss *bss = priv; 9662 struct wpa_driver_nl80211_data *drv = bss->drv; 9663 struct nl_msg *msg; 9664 9665 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9666 return -EOPNOTSUPP; 9667 9668 if (!dst) 9669 return -EINVAL; 9670 9671 msg = nlmsg_alloc(); 9672 if (!msg) 9673 return -ENOMEM; 9674 9675 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); 9676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9677 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); 9678 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); 9679 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); 9680 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); 9681 NLA_PUT(msg, NL80211_ATTR_IE, len, buf); 9682 9683 return send_and_recv_msgs(drv, msg, NULL, NULL); 9684 9685nla_put_failure: 9686 nlmsg_free(msg); 9687 return -ENOBUFS; 9688} 9689 9690 9691static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 9692{ 9693 struct i802_bss *bss = priv; 9694 struct wpa_driver_nl80211_data *drv = bss->drv; 9695 struct nl_msg *msg; 9696 enum nl80211_tdls_operation nl80211_oper; 9697 9698 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 9699 return -EOPNOTSUPP; 9700 9701 switch (oper) { 9702 case TDLS_DISCOVERY_REQ: 9703 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 9704 break; 9705 case TDLS_SETUP: 9706 nl80211_oper = NL80211_TDLS_SETUP; 9707 break; 9708 case TDLS_TEARDOWN: 9709 nl80211_oper = NL80211_TDLS_TEARDOWN; 9710 break; 9711 case TDLS_ENABLE_LINK: 9712 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 9713 break; 9714 case TDLS_DISABLE_LINK: 9715 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 9716 break; 9717 case TDLS_ENABLE: 9718 return 0; 9719 case TDLS_DISABLE: 9720 return 0; 9721 default: 9722 return -EINVAL; 9723 } 9724 9725 msg = nlmsg_alloc(); 9726 if (!msg) 9727 return -ENOMEM; 9728 9729 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); 9730 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); 9731 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9732 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); 9733 9734 return send_and_recv_msgs(drv, msg, NULL, NULL); 9735 9736nla_put_failure: 9737 nlmsg_free(msg); 9738 return -ENOBUFS; 9739} 9740 9741#endif /* CONFIG TDLS */ 9742 9743 9744#ifdef ANDROID 9745 9746typedef struct android_wifi_priv_cmd { 9747 char *buf; 9748 int used_len; 9749 int total_len; 9750} android_wifi_priv_cmd; 9751 9752static int drv_errors = 0; 9753 9754static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 9755{ 9756 drv_errors++; 9757 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 9758 drv_errors = 0; 9759 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 9760 } 9761} 9762 9763 9764static int android_priv_cmd(struct i802_bss *bss, const char *cmd) 9765{ 9766 struct wpa_driver_nl80211_data *drv = bss->drv; 9767 struct ifreq ifr; 9768 android_wifi_priv_cmd priv_cmd; 9769 char buf[MAX_DRV_CMD_SIZE]; 9770 int ret; 9771 9772 os_memset(&ifr, 0, sizeof(ifr)); 9773 os_memset(&priv_cmd, 0, sizeof(priv_cmd)); 9774 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9775 9776 os_memset(buf, 0, sizeof(buf)); 9777 os_strlcpy(buf, cmd, sizeof(buf)); 9778 9779 priv_cmd.buf = buf; 9780 priv_cmd.used_len = sizeof(buf); 9781 priv_cmd.total_len = sizeof(buf); 9782 ifr.ifr_data = &priv_cmd; 9783 9784 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9785 if (ret < 0) { 9786 wpa_printf(MSG_ERROR, "%s: failed to issue private commands", 9787 __func__); 9788 wpa_driver_send_hang_msg(drv); 9789 return ret; 9790 } 9791 9792 drv_errors = 0; 9793 return 0; 9794} 9795 9796 9797static int android_pno_start(struct i802_bss *bss, 9798 struct wpa_driver_scan_params *params) 9799{ 9800 struct wpa_driver_nl80211_data *drv = bss->drv; 9801 struct ifreq ifr; 9802 android_wifi_priv_cmd priv_cmd; 9803 int ret = 0, i = 0, bp; 9804 char buf[WEXT_PNO_MAX_COMMAND_SIZE]; 9805 9806 bp = WEXT_PNOSETUP_HEADER_SIZE; 9807 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); 9808 buf[bp++] = WEXT_PNO_TLV_PREFIX; 9809 buf[bp++] = WEXT_PNO_TLV_VERSION; 9810 buf[bp++] = WEXT_PNO_TLV_SUBVERSION; 9811 buf[bp++] = WEXT_PNO_TLV_RESERVED; 9812 9813 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { 9814 /* Check that there is enough space needed for 1 more SSID, the 9815 * other sections and null termination */ 9816 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + 9817 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) 9818 break; 9819 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", 9820 params->ssids[i].ssid, 9821 params->ssids[i].ssid_len); 9822 buf[bp++] = WEXT_PNO_SSID_SECTION; 9823 buf[bp++] = params->ssids[i].ssid_len; 9824 os_memcpy(&buf[bp], params->ssids[i].ssid, 9825 params->ssids[i].ssid_len); 9826 bp += params->ssids[i].ssid_len; 9827 i++; 9828 } 9829 9830 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; 9831 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", 9832 WEXT_PNO_SCAN_INTERVAL); 9833 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; 9834 9835 buf[bp++] = WEXT_PNO_REPEAT_SECTION; 9836 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", 9837 WEXT_PNO_REPEAT); 9838 bp += WEXT_PNO_REPEAT_LENGTH; 9839 9840 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; 9841 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", 9842 WEXT_PNO_MAX_REPEAT); 9843 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; 9844 9845 memset(&ifr, 0, sizeof(ifr)); 9846 memset(&priv_cmd, 0, sizeof(priv_cmd)); 9847 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 9848 9849 priv_cmd.buf = buf; 9850 priv_cmd.used_len = bp; 9851 priv_cmd.total_len = bp; 9852 ifr.ifr_data = &priv_cmd; 9853 9854 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); 9855 9856 if (ret < 0) { 9857 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", 9858 ret); 9859 wpa_driver_send_hang_msg(drv); 9860 return ret; 9861 } 9862 9863 drv_errors = 0; 9864 9865 return android_priv_cmd(bss, "PNOFORCE 1"); 9866} 9867 9868 9869static int android_pno_stop(struct i802_bss *bss) 9870{ 9871 return android_priv_cmd(bss, "PNOFORCE 0"); 9872} 9873 9874#endif /* ANDROID */ 9875 9876 9877static int driver_nl80211_set_key(const char *ifname, void *priv, 9878 enum wpa_alg alg, const u8 *addr, 9879 int key_idx, int set_tx, 9880 const u8 *seq, size_t seq_len, 9881 const u8 *key, size_t key_len) 9882{ 9883 struct i802_bss *bss = priv; 9884 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 9885 set_tx, seq, seq_len, key, key_len); 9886} 9887 9888 9889static int driver_nl80211_scan2(void *priv, 9890 struct wpa_driver_scan_params *params) 9891{ 9892 struct i802_bss *bss = priv; 9893 return wpa_driver_nl80211_scan(bss, params); 9894} 9895 9896 9897static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 9898 int reason_code) 9899{ 9900 struct i802_bss *bss = priv; 9901 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 9902} 9903 9904 9905static int driver_nl80211_authenticate(void *priv, 9906 struct wpa_driver_auth_params *params) 9907{ 9908 struct i802_bss *bss = priv; 9909 return wpa_driver_nl80211_authenticate(bss, params); 9910} 9911 9912 9913static void driver_nl80211_deinit(void *priv) 9914{ 9915 struct i802_bss *bss = priv; 9916 wpa_driver_nl80211_deinit(bss); 9917} 9918 9919 9920static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 9921 const char *ifname) 9922{ 9923 struct i802_bss *bss = priv; 9924 return wpa_driver_nl80211_if_remove(bss, type, ifname); 9925} 9926 9927 9928static int driver_nl80211_send_mlme(void *priv, const u8 *data, 9929 size_t data_len, int noack) 9930{ 9931 struct i802_bss *bss = priv; 9932 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 9933 0, 0, 0, 0); 9934} 9935 9936 9937static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 9938{ 9939 struct i802_bss *bss = priv; 9940 return wpa_driver_nl80211_sta_remove(bss, addr); 9941} 9942 9943 9944#if defined(HOSTAPD) || defined(CONFIG_AP) 9945static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 9946 const char *ifname, int vlan_id) 9947{ 9948 struct i802_bss *bss = priv; 9949 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 9950} 9951#endif /* HOSTAPD || CONFIG_AP */ 9952 9953 9954static int driver_nl80211_read_sta_data(void *priv, 9955 struct hostap_sta_driver_data *data, 9956 const u8 *addr) 9957{ 9958 struct i802_bss *bss = priv; 9959 return i802_read_sta_data(bss, data, addr); 9960} 9961 9962 9963static int driver_nl80211_send_action(void *priv, unsigned int freq, 9964 unsigned int wait_time, 9965 const u8 *dst, const u8 *src, 9966 const u8 *bssid, 9967 const u8 *data, size_t data_len, 9968 int no_cck) 9969{ 9970 struct i802_bss *bss = priv; 9971 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 9972 bssid, data, data_len, no_cck); 9973} 9974 9975 9976static int driver_nl80211_probe_req_report(void *priv, int report) 9977{ 9978 struct i802_bss *bss = priv; 9979 return wpa_driver_nl80211_probe_req_report(bss, report); 9980} 9981 9982 9983static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 9984 const u8 *ies, size_t ies_len) 9985{ 9986 int ret; 9987 struct nl_msg *msg; 9988 struct i802_bss *bss = priv; 9989 struct wpa_driver_nl80211_data *drv = bss->drv; 9990 u16 mdid = WPA_GET_LE16(md); 9991 9992 msg = nlmsg_alloc(); 9993 if (!msg) 9994 return -ENOMEM; 9995 9996 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 9997 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); 9998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); 9999 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); 10000 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); 10001 10002 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 10003 if (ret) { 10004 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 10005 "err=%d (%s)", ret, strerror(-ret)); 10006 } 10007 10008 return ret; 10009 10010nla_put_failure: 10011 nlmsg_free(msg); 10012 return -ENOBUFS; 10013} 10014 10015 10016const struct wpa_driver_ops wpa_driver_nl80211_ops = { 10017 .name = "nl80211", 10018 .desc = "Linux nl80211/cfg80211", 10019 .get_bssid = wpa_driver_nl80211_get_bssid, 10020 .get_ssid = wpa_driver_nl80211_get_ssid, 10021 .set_key = driver_nl80211_set_key, 10022 .scan2 = driver_nl80211_scan2, 10023 .sched_scan = wpa_driver_nl80211_sched_scan, 10024 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 10025 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 10026 .deauthenticate = driver_nl80211_deauthenticate, 10027 .authenticate = driver_nl80211_authenticate, 10028 .associate = wpa_driver_nl80211_associate, 10029 .global_init = nl80211_global_init, 10030 .global_deinit = nl80211_global_deinit, 10031 .init2 = wpa_driver_nl80211_init, 10032 .deinit = driver_nl80211_deinit, 10033 .get_capa = wpa_driver_nl80211_get_capa, 10034 .set_operstate = wpa_driver_nl80211_set_operstate, 10035 .set_supp_port = wpa_driver_nl80211_set_supp_port, 10036 .set_country = wpa_driver_nl80211_set_country, 10037 .set_ap = wpa_driver_nl80211_set_ap, 10038 .set_acl = wpa_driver_nl80211_set_acl, 10039 .if_add = wpa_driver_nl80211_if_add, 10040 .if_remove = driver_nl80211_if_remove, 10041 .send_mlme = driver_nl80211_send_mlme, 10042 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, 10043 .sta_add = wpa_driver_nl80211_sta_add, 10044 .sta_remove = driver_nl80211_sta_remove, 10045 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 10046 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 10047#ifdef HOSTAPD 10048 .hapd_init = i802_init, 10049 .hapd_deinit = i802_deinit, 10050 .set_wds_sta = i802_set_wds_sta, 10051#endif /* HOSTAPD */ 10052#if defined(HOSTAPD) || defined(CONFIG_AP) 10053 .get_seqnum = i802_get_seqnum, 10054 .flush = i802_flush, 10055 .get_inact_sec = i802_get_inact_sec, 10056 .sta_clear_stats = i802_sta_clear_stats, 10057 .set_rts = i802_set_rts, 10058 .set_frag = i802_set_frag, 10059 .set_tx_queue_params = i802_set_tx_queue_params, 10060 .set_sta_vlan = driver_nl80211_set_sta_vlan, 10061 .sta_deauth = i802_sta_deauth, 10062 .sta_disassoc = i802_sta_disassoc, 10063#endif /* HOSTAPD || CONFIG_AP */ 10064 .read_sta_data = driver_nl80211_read_sta_data, 10065 .set_freq = i802_set_freq, 10066 .send_action = driver_nl80211_send_action, 10067 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 10068 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 10069 .cancel_remain_on_channel = 10070 wpa_driver_nl80211_cancel_remain_on_channel, 10071 .probe_req_report = driver_nl80211_probe_req_report, 10072 .deinit_ap = wpa_driver_nl80211_deinit_ap, 10073 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 10074 .resume = wpa_driver_nl80211_resume, 10075 .send_ft_action = nl80211_send_ft_action, 10076 .signal_monitor = nl80211_signal_monitor, 10077 .signal_poll = nl80211_signal_poll, 10078 .send_frame = nl80211_send_frame, 10079 .shared_freq = wpa_driver_nl80211_shared_freq, 10080 .set_param = nl80211_set_param, 10081 .get_radio_name = nl80211_get_radio_name, 10082 .add_pmkid = nl80211_add_pmkid, 10083 .remove_pmkid = nl80211_remove_pmkid, 10084 .flush_pmkid = nl80211_flush_pmkid, 10085 .set_rekey_info = nl80211_set_rekey_info, 10086 .poll_client = nl80211_poll_client, 10087 .set_p2p_powersave = nl80211_set_p2p_powersave, 10088 .start_dfs_cac = nl80211_start_radar_detection, 10089 .stop_ap = wpa_driver_nl80211_stop_ap, 10090#ifdef CONFIG_TDLS 10091 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 10092 .tdls_oper = nl80211_tdls_oper, 10093#endif /* CONFIG_TDLS */ 10094 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 10095#ifdef ANDROID_P2P 10096 .set_noa = wpa_driver_set_p2p_noa, 10097 .get_noa = wpa_driver_get_p2p_noa, 10098 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 10099#endif 10100#ifdef ANDROID 10101 .driver_cmd = wpa_driver_nl80211_driver_cmd, 10102#endif 10103}; 10104