1 /* 2 * Driver interaction with Linux nl80211/cfg80211 3 * Copyright (c) 2002-2015, 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/types.h> 15 #include <fcntl.h> 16 #include <net/if.h> 17 #include <netlink/genl/genl.h> 18 #include <netlink/genl/ctrl.h> 19 #ifdef CONFIG_LIBNL3_ROUTE 20 #include <netlink/route/neighbour.h> 21 #endif /* CONFIG_LIBNL3_ROUTE */ 22 #include <linux/rtnetlink.h> 23 #include <netpacket/packet.h> 24 #include <linux/errqueue.h> 25 26 #include "common.h" 27 #include "eloop.h" 28 #include "common/qca-vendor.h" 29 #include "common/qca-vendor-attr.h" 30 #include "common/ieee802_11_defs.h" 31 #include "common/ieee802_11_common.h" 32 #include "l2_packet/l2_packet.h" 33 #include "netlink.h" 34 #include "linux_defines.h" 35 #include "linux_ioctl.h" 36 #include "radiotap.h" 37 #include "radiotap_iter.h" 38 #include "rfkill.h" 39 #include "driver_nl80211.h" 40 41 42 #ifndef CONFIG_LIBNL20 43 /* 44 * libnl 1.1 has a bug, it tries to allocate socket numbers densely 45 * but when you free a socket again it will mess up its bitmap and 46 * and use the wrong number the next time it needs a socket ID. 47 * Therefore, we wrap the handle alloc/destroy and add our own pid 48 * accounting. 49 */ 50 static uint32_t port_bitmap[32] = { 0 }; 51 52 static struct nl_handle *nl80211_handle_alloc(void *cb) 53 { 54 struct nl_handle *handle; 55 uint32_t pid = getpid() & 0x3FFFFF; 56 int i; 57 58 handle = nl_handle_alloc_cb(cb); 59 60 for (i = 0; i < 1024; i++) { 61 if (port_bitmap[i / 32] & (1 << (i % 32))) 62 continue; 63 port_bitmap[i / 32] |= 1 << (i % 32); 64 pid += i << 22; 65 break; 66 } 67 68 nl_socket_set_local_port(handle, pid); 69 70 return handle; 71 } 72 73 static void nl80211_handle_destroy(struct nl_handle *handle) 74 { 75 uint32_t port = nl_socket_get_local_port(handle); 76 77 port >>= 22; 78 port_bitmap[port / 32] &= ~(1 << (port % 32)); 79 80 nl_handle_destroy(handle); 81 } 82 #endif /* CONFIG_LIBNL20 */ 83 84 85 #ifdef ANDROID 86 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ 87 #undef nl_socket_set_nonblocking 88 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) 89 90 #endif /* ANDROID */ 91 92 93 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) 94 { 95 struct nl_handle *handle; 96 97 handle = nl80211_handle_alloc(cb); 98 if (handle == NULL) { 99 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 100 "callbacks (%s)", dbg); 101 return NULL; 102 } 103 104 if (genl_connect(handle)) { 105 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " 106 "netlink (%s)", dbg); 107 nl80211_handle_destroy(handle); 108 return NULL; 109 } 110 111 return handle; 112 } 113 114 115 static void nl_destroy_handles(struct nl_handle **handle) 116 { 117 if (*handle == NULL) 118 return; 119 nl80211_handle_destroy(*handle); 120 *handle = NULL; 121 } 122 123 124 #if __WORDSIZE == 64 125 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL 126 #else 127 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL 128 #endif 129 130 static void nl80211_register_eloop_read(struct nl_handle **handle, 131 eloop_sock_handler handler, 132 void *eloop_data) 133 { 134 #ifdef CONFIG_LIBNL20 135 /* 136 * libnl uses a pretty small buffer (32 kB that gets converted to 64 kB) 137 * by default. It is possible to hit that limit in some cases where 138 * operations are blocked, e.g., with a burst of Deauthentication frames 139 * to hostapd and STA entry deletion. Try to increase the buffer to make 140 * this less likely to occur. 141 */ 142 if (nl_socket_set_buffer_size(*handle, 262144, 0) < 0) { 143 wpa_printf(MSG_DEBUG, 144 "nl80211: Could not set nl_socket RX buffer size: %s", 145 strerror(errno)); 146 /* continue anyway with the default (smaller) buffer */ 147 } 148 #endif /* CONFIG_LIBNL20 */ 149 150 nl_socket_set_nonblocking(*handle); 151 eloop_register_read_sock(nl_socket_get_fd(*handle), handler, 152 eloop_data, *handle); 153 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 154 } 155 156 157 static void nl80211_destroy_eloop_handle(struct nl_handle **handle) 158 { 159 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); 160 eloop_unregister_read_sock(nl_socket_get_fd(*handle)); 161 nl_destroy_handles(handle); 162 } 163 164 165 static void nl80211_global_deinit(void *priv); 166 static void nl80211_check_global(struct nl80211_global *global); 167 168 static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 169 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 170 struct hostapd_freq_params *freq); 171 172 static int 173 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 174 const u8 *set_addr, int first, 175 const char *driver_params); 176 static int nl80211_send_frame_cmd(struct i802_bss *bss, 177 unsigned int freq, unsigned int wait, 178 const u8 *buf, size_t buf_len, u64 *cookie, 179 int no_cck, int no_ack, int offchanok, 180 const u16 *csa_offs, size_t csa_offs_len); 181 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 182 int report); 183 184 #define IFIDX_ANY -1 185 186 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 187 int ifidx_reason); 188 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 189 int ifidx_reason); 190 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 191 int ifidx_reason); 192 193 static int nl80211_set_channel(struct i802_bss *bss, 194 struct hostapd_freq_params *freq, int set_chan); 195 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 196 int ifindex, int disabled); 197 198 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, 199 int reset_mode); 200 201 static int i802_set_iface_flags(struct i802_bss *bss, int up); 202 static int nl80211_set_param(void *priv, const char *param); 203 #ifdef CONFIG_MESH 204 static int nl80211_put_mesh_config(struct nl_msg *msg, 205 struct wpa_driver_mesh_bss_params *params); 206 #endif /* CONFIG_MESH */ 207 208 209 /* Converts nl80211_chan_width to a common format */ 210 enum chan_width convert2width(int width) 211 { 212 switch (width) { 213 case NL80211_CHAN_WIDTH_20_NOHT: 214 return CHAN_WIDTH_20_NOHT; 215 case NL80211_CHAN_WIDTH_20: 216 return CHAN_WIDTH_20; 217 case NL80211_CHAN_WIDTH_40: 218 return CHAN_WIDTH_40; 219 case NL80211_CHAN_WIDTH_80: 220 return CHAN_WIDTH_80; 221 case NL80211_CHAN_WIDTH_80P80: 222 return CHAN_WIDTH_80P80; 223 case NL80211_CHAN_WIDTH_160: 224 return CHAN_WIDTH_160; 225 } 226 return CHAN_WIDTH_UNKNOWN; 227 } 228 229 230 int is_ap_interface(enum nl80211_iftype nlmode) 231 { 232 return nlmode == NL80211_IFTYPE_AP || 233 nlmode == NL80211_IFTYPE_P2P_GO; 234 } 235 236 237 int is_sta_interface(enum nl80211_iftype nlmode) 238 { 239 return nlmode == NL80211_IFTYPE_STATION || 240 nlmode == NL80211_IFTYPE_P2P_CLIENT; 241 } 242 243 244 static int is_p2p_net_interface(enum nl80211_iftype nlmode) 245 { 246 return nlmode == NL80211_IFTYPE_P2P_CLIENT || 247 nlmode == NL80211_IFTYPE_P2P_GO; 248 } 249 250 251 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv, 252 int ifindex) 253 { 254 struct i802_bss *bss; 255 256 for (bss = drv->first_bss; bss; bss = bss->next) { 257 if (bss->ifindex == ifindex) 258 return bss; 259 } 260 261 return NULL; 262 } 263 264 265 static int is_mesh_interface(enum nl80211_iftype nlmode) 266 { 267 return nlmode == NL80211_IFTYPE_MESH_POINT; 268 } 269 270 271 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) 272 { 273 if (drv->associated) 274 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); 275 drv->associated = 0; 276 os_memset(drv->bssid, 0, ETH_ALEN); 277 } 278 279 280 /* nl80211 code */ 281 static int ack_handler(struct nl_msg *msg, void *arg) 282 { 283 int *err = arg; 284 *err = 0; 285 return NL_STOP; 286 } 287 288 static int finish_handler(struct nl_msg *msg, void *arg) 289 { 290 int *ret = arg; 291 *ret = 0; 292 return NL_SKIP; 293 } 294 295 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, 296 void *arg) 297 { 298 int *ret = arg; 299 *ret = err->error; 300 return NL_SKIP; 301 } 302 303 304 static int no_seq_check(struct nl_msg *msg, void *arg) 305 { 306 return NL_OK; 307 } 308 309 310 static void nl80211_nlmsg_clear(struct nl_msg *msg) 311 { 312 /* 313 * Clear nlmsg data, e.g., to make sure key material is not left in 314 * heap memory for unnecessarily long time. 315 */ 316 if (msg) { 317 struct nlmsghdr *hdr = nlmsg_hdr(msg); 318 void *data = nlmsg_data(hdr); 319 /* 320 * This would use nlmsg_datalen() or the older nlmsg_len() if 321 * only libnl were to maintain a stable API.. Neither will work 322 * with all released versions, so just calculate the length 323 * here. 324 */ 325 int len = hdr->nlmsg_len - NLMSG_HDRLEN; 326 327 os_memset(data, 0, len); 328 } 329 } 330 331 332 static int send_and_recv(struct nl80211_global *global, 333 struct nl_handle *nl_handle, struct nl_msg *msg, 334 int (*valid_handler)(struct nl_msg *, void *), 335 void *valid_data) 336 { 337 struct nl_cb *cb; 338 int err = -ENOMEM; 339 340 if (!msg) 341 return -ENOMEM; 342 343 cb = nl_cb_clone(global->nl_cb); 344 if (!cb) 345 goto out; 346 347 err = nl_send_auto_complete(nl_handle, msg); 348 if (err < 0) 349 goto out; 350 351 err = 1; 352 353 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 354 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 355 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 356 357 if (valid_handler) 358 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 359 valid_handler, valid_data); 360 361 while (err > 0) { 362 int res = nl_recvmsgs(nl_handle, cb); 363 if (res < 0) { 364 wpa_printf(MSG_INFO, 365 "nl80211: %s->nl_recvmsgs failed: %d", 366 __func__, res); 367 } 368 } 369 out: 370 nl_cb_put(cb); 371 if (!valid_handler && valid_data == (void *) -1) 372 nl80211_nlmsg_clear(msg); 373 nlmsg_free(msg); 374 return err; 375 } 376 377 378 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, 379 struct nl_msg *msg, 380 int (*valid_handler)(struct nl_msg *, void *), 381 void *valid_data) 382 { 383 return send_and_recv(drv->global, drv->global->nl, msg, 384 valid_handler, valid_data); 385 } 386 387 388 struct family_data { 389 const char *group; 390 int id; 391 }; 392 393 394 static int family_handler(struct nl_msg *msg, void *arg) 395 { 396 struct family_data *res = arg; 397 struct nlattr *tb[CTRL_ATTR_MAX + 1]; 398 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 399 struct nlattr *mcgrp; 400 int i; 401 402 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 403 genlmsg_attrlen(gnlh, 0), NULL); 404 if (!tb[CTRL_ATTR_MCAST_GROUPS]) 405 return NL_SKIP; 406 407 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { 408 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; 409 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), 410 nla_len(mcgrp), NULL); 411 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || 412 !tb2[CTRL_ATTR_MCAST_GRP_ID] || 413 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), 414 res->group, 415 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) 416 continue; 417 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); 418 break; 419 }; 420 421 return NL_SKIP; 422 } 423 424 425 static int nl_get_multicast_id(struct nl80211_global *global, 426 const char *family, const char *group) 427 { 428 struct nl_msg *msg; 429 int ret; 430 struct family_data res = { group, -ENOENT }; 431 432 msg = nlmsg_alloc(); 433 if (!msg) 434 return -ENOMEM; 435 if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 436 0, 0, CTRL_CMD_GETFAMILY, 0) || 437 nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) { 438 nlmsg_free(msg); 439 return -1; 440 } 441 442 ret = send_and_recv(global, global->nl, msg, family_handler, &res); 443 if (ret == 0) 444 ret = res.id; 445 return ret; 446 } 447 448 449 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 450 struct nl_msg *msg, int flags, uint8_t cmd) 451 { 452 if (TEST_FAIL()) 453 return NULL; 454 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 455 0, flags, cmd, 0); 456 } 457 458 459 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) 460 { 461 if (bss->wdev_id_set) 462 return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id); 463 return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); 464 } 465 466 467 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd) 468 { 469 struct nl_msg *msg; 470 471 msg = nlmsg_alloc(); 472 if (!msg) 473 return NULL; 474 475 if (!nl80211_cmd(bss->drv, msg, flags, cmd) || 476 nl80211_set_iface_id(msg, bss) < 0) { 477 nlmsg_free(msg); 478 return NULL; 479 } 480 481 return msg; 482 } 483 484 485 static struct nl_msg * 486 nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex, 487 int flags, uint8_t cmd) 488 { 489 struct nl_msg *msg; 490 491 msg = nlmsg_alloc(); 492 if (!msg) 493 return NULL; 494 495 if (!nl80211_cmd(drv, msg, flags, cmd) || 496 nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) { 497 nlmsg_free(msg); 498 return NULL; 499 } 500 501 return msg; 502 } 503 504 505 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags, 506 uint8_t cmd) 507 { 508 return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd); 509 } 510 511 512 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd) 513 { 514 return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd); 515 } 516 517 518 struct wiphy_idx_data { 519 int wiphy_idx; 520 enum nl80211_iftype nlmode; 521 u8 *macaddr; 522 }; 523 524 525 static int netdev_info_handler(struct nl_msg *msg, void *arg) 526 { 527 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 528 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 529 struct wiphy_idx_data *info = arg; 530 531 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 532 genlmsg_attrlen(gnlh, 0), NULL); 533 534 if (tb[NL80211_ATTR_WIPHY]) 535 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 536 537 if (tb[NL80211_ATTR_IFTYPE]) 538 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); 539 540 if (tb[NL80211_ATTR_MAC] && info->macaddr) 541 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 542 ETH_ALEN); 543 544 return NL_SKIP; 545 } 546 547 548 int nl80211_get_wiphy_index(struct i802_bss *bss) 549 { 550 struct nl_msg *msg; 551 struct wiphy_idx_data data = { 552 .wiphy_idx = -1, 553 .macaddr = NULL, 554 }; 555 556 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) 557 return -1; 558 559 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 560 return data.wiphy_idx; 561 return -1; 562 } 563 564 565 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) 566 { 567 struct nl_msg *msg; 568 struct wiphy_idx_data data = { 569 .nlmode = NL80211_IFTYPE_UNSPECIFIED, 570 .macaddr = NULL, 571 }; 572 573 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) 574 return NL80211_IFTYPE_UNSPECIFIED; 575 576 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) 577 return data.nlmode; 578 return NL80211_IFTYPE_UNSPECIFIED; 579 } 580 581 582 static int nl80211_get_macaddr(struct i802_bss *bss) 583 { 584 struct nl_msg *msg; 585 struct wiphy_idx_data data = { 586 .macaddr = bss->addr, 587 }; 588 589 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) 590 return -1; 591 592 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); 593 } 594 595 596 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, 597 struct nl80211_wiphy_data *w) 598 { 599 struct nl_msg *msg; 600 int ret; 601 602 msg = nlmsg_alloc(); 603 if (!msg) 604 return -1; 605 606 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) || 607 nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) { 608 nlmsg_free(msg); 609 return -1; 610 } 611 612 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); 613 if (ret) { 614 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " 615 "failed: ret=%d (%s)", 616 ret, strerror(-ret)); 617 } 618 return ret; 619 } 620 621 622 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) 623 { 624 struct nl80211_wiphy_data *w = eloop_ctx; 625 int res; 626 627 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); 628 629 res = nl_recvmsgs(handle, w->nl_cb); 630 if (res < 0) { 631 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 632 __func__, res); 633 } 634 } 635 636 637 static int process_beacon_event(struct nl_msg *msg, void *arg) 638 { 639 struct nl80211_wiphy_data *w = arg; 640 struct wpa_driver_nl80211_data *drv; 641 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 642 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 643 union wpa_event_data event; 644 645 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 646 genlmsg_attrlen(gnlh, 0), NULL); 647 648 if (gnlh->cmd != NL80211_CMD_FRAME) { 649 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", 650 gnlh->cmd); 651 return NL_SKIP; 652 } 653 654 if (!tb[NL80211_ATTR_FRAME]) 655 return NL_SKIP; 656 657 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, 658 wiphy_list) { 659 os_memset(&event, 0, sizeof(event)); 660 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); 661 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); 662 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); 663 } 664 665 return NL_SKIP; 666 } 667 668 669 static struct nl80211_wiphy_data * 670 nl80211_get_wiphy_data_ap(struct i802_bss *bss) 671 { 672 static DEFINE_DL_LIST(nl80211_wiphys); 673 struct nl80211_wiphy_data *w; 674 int wiphy_idx, found = 0; 675 struct i802_bss *tmp_bss; 676 677 if (bss->wiphy_data != NULL) 678 return bss->wiphy_data; 679 680 wiphy_idx = nl80211_get_wiphy_index(bss); 681 682 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { 683 if (w->wiphy_idx == wiphy_idx) 684 goto add; 685 } 686 687 /* alloc new one */ 688 w = os_zalloc(sizeof(*w)); 689 if (w == NULL) 690 return NULL; 691 w->wiphy_idx = wiphy_idx; 692 dl_list_init(&w->bsss); 693 dl_list_init(&w->drvs); 694 695 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 696 if (!w->nl_cb) { 697 os_free(w); 698 return NULL; 699 } 700 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 701 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, 702 w); 703 704 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, 705 "wiphy beacons"); 706 if (w->nl_beacons == NULL) { 707 os_free(w); 708 return NULL; 709 } 710 711 if (nl80211_register_beacons(bss->drv, w)) { 712 nl_destroy_handles(&w->nl_beacons); 713 os_free(w); 714 return NULL; 715 } 716 717 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); 718 719 dl_list_add(&nl80211_wiphys, &w->list); 720 721 add: 722 /* drv entry for this bss already there? */ 723 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 724 if (tmp_bss->drv == bss->drv) { 725 found = 1; 726 break; 727 } 728 } 729 /* if not add it */ 730 if (!found) 731 dl_list_add(&w->drvs, &bss->drv->wiphy_list); 732 733 dl_list_add(&w->bsss, &bss->wiphy_list); 734 bss->wiphy_data = w; 735 return w; 736 } 737 738 739 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) 740 { 741 struct nl80211_wiphy_data *w = bss->wiphy_data; 742 struct i802_bss *tmp_bss; 743 int found = 0; 744 745 if (w == NULL) 746 return; 747 bss->wiphy_data = NULL; 748 dl_list_del(&bss->wiphy_list); 749 750 /* still any for this drv present? */ 751 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { 752 if (tmp_bss->drv == bss->drv) { 753 found = 1; 754 break; 755 } 756 } 757 /* if not remove it */ 758 if (!found) 759 dl_list_del(&bss->drv->wiphy_list); 760 761 if (!dl_list_empty(&w->bsss)) 762 return; 763 764 nl80211_destroy_eloop_handle(&w->nl_beacons); 765 766 nl_cb_put(w->nl_cb); 767 dl_list_del(&w->list); 768 os_free(w); 769 } 770 771 772 static unsigned int nl80211_get_ifindex(void *priv) 773 { 774 struct i802_bss *bss = priv; 775 struct wpa_driver_nl80211_data *drv = bss->drv; 776 777 return drv->ifindex; 778 } 779 780 781 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) 782 { 783 struct i802_bss *bss = priv; 784 struct wpa_driver_nl80211_data *drv = bss->drv; 785 if (!drv->associated) 786 return -1; 787 os_memcpy(bssid, drv->bssid, ETH_ALEN); 788 return 0; 789 } 790 791 792 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) 793 { 794 struct i802_bss *bss = priv; 795 struct wpa_driver_nl80211_data *drv = bss->drv; 796 if (!drv->associated) 797 return -1; 798 os_memcpy(ssid, drv->ssid, drv->ssid_len); 799 return drv->ssid_len; 800 } 801 802 803 static void wpa_driver_nl80211_event_newlink( 804 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv, 805 int ifindex, const char *ifname) 806 { 807 union wpa_event_data event; 808 809 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) { 810 if (if_nametoindex(drv->first_bss->ifname) == 0) { 811 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", 812 drv->first_bss->ifname); 813 return; 814 } 815 if (!drv->if_removed) 816 return; 817 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", 818 drv->first_bss->ifname); 819 drv->if_removed = 0; 820 } 821 822 os_memset(&event, 0, sizeof(event)); 823 event.interface_status.ifindex = ifindex; 824 os_strlcpy(event.interface_status.ifname, ifname, 825 sizeof(event.interface_status.ifname)); 826 event.interface_status.ievent = EVENT_INTERFACE_ADDED; 827 if (drv) 828 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 829 else 830 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS, 831 &event); 832 } 833 834 835 static void wpa_driver_nl80211_event_dellink( 836 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv, 837 int ifindex, const char *ifname) 838 { 839 union wpa_event_data event; 840 841 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) { 842 if (drv->if_removed) { 843 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", 844 ifname); 845 return; 846 } 847 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", 848 ifname); 849 drv->if_removed = 1; 850 } else { 851 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", 852 ifname); 853 } 854 855 os_memset(&event, 0, sizeof(event)); 856 event.interface_status.ifindex = ifindex; 857 os_strlcpy(event.interface_status.ifname, ifname, 858 sizeof(event.interface_status.ifname)); 859 event.interface_status.ievent = EVENT_INTERFACE_REMOVED; 860 if (drv) 861 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); 862 else 863 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS, 864 &event); 865 } 866 867 868 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, 869 u8 *buf, size_t len) 870 { 871 int attrlen, rta_len; 872 struct rtattr *attr; 873 874 attrlen = len; 875 attr = (struct rtattr *) buf; 876 877 rta_len = RTA_ALIGN(sizeof(struct rtattr)); 878 while (RTA_OK(attr, attrlen)) { 879 if (attr->rta_type == IFLA_IFNAME) { 880 if (os_strcmp(((char *) attr) + rta_len, 881 drv->first_bss->ifname) == 0) 882 return 1; 883 else 884 break; 885 } 886 attr = RTA_NEXT(attr, attrlen); 887 } 888 889 return 0; 890 } 891 892 893 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, 894 int ifindex, u8 *buf, size_t len) 895 { 896 if (drv->ifindex == ifindex) 897 return 1; 898 899 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { 900 nl80211_check_global(drv->global); 901 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " 902 "interface"); 903 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL); 904 return 1; 905 } 906 907 return 0; 908 } 909 910 911 static struct wpa_driver_nl80211_data * 912 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) 913 { 914 struct wpa_driver_nl80211_data *drv; 915 dl_list_for_each(drv, &global->interfaces, 916 struct wpa_driver_nl80211_data, list) { 917 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || 918 have_ifidx(drv, idx, IFIDX_ANY)) 919 return drv; 920 } 921 return NULL; 922 } 923 924 925 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, 926 struct ifinfomsg *ifi, 927 u8 *buf, size_t len) 928 { 929 struct nl80211_global *global = ctx; 930 struct wpa_driver_nl80211_data *drv; 931 int attrlen; 932 struct rtattr *attr; 933 u32 brid = 0; 934 char namebuf[IFNAMSIZ]; 935 char ifname[IFNAMSIZ + 1]; 936 char extra[100], *pos, *end; 937 938 extra[0] = '\0'; 939 pos = extra; 940 end = pos + sizeof(extra); 941 ifname[0] = '\0'; 942 943 attrlen = len; 944 attr = (struct rtattr *) buf; 945 while (RTA_OK(attr, attrlen)) { 946 switch (attr->rta_type) { 947 case IFLA_IFNAME: 948 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 949 break; 950 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 951 ifname[RTA_PAYLOAD(attr)] = '\0'; 952 break; 953 case IFLA_MASTER: 954 brid = nla_get_u32((struct nlattr *) attr); 955 pos += os_snprintf(pos, end - pos, " master=%u", brid); 956 break; 957 case IFLA_WIRELESS: 958 pos += os_snprintf(pos, end - pos, " wext"); 959 break; 960 case IFLA_OPERSTATE: 961 pos += os_snprintf(pos, end - pos, " operstate=%u", 962 nla_get_u32((struct nlattr *) attr)); 963 break; 964 case IFLA_LINKMODE: 965 pos += os_snprintf(pos, end - pos, " linkmode=%u", 966 nla_get_u32((struct nlattr *) attr)); 967 break; 968 } 969 attr = RTA_NEXT(attr, attrlen); 970 } 971 extra[sizeof(extra) - 1] = '\0'; 972 973 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", 974 ifi->ifi_index, ifname, extra, ifi->ifi_family, 975 ifi->ifi_flags, 976 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 977 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 978 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 979 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 980 981 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 982 if (!drv) 983 goto event_newlink; 984 985 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { 986 namebuf[0] = '\0'; 987 if (if_indextoname(ifi->ifi_index, namebuf) && 988 linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) { 989 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 990 "event since interface %s is up", namebuf); 991 drv->ignore_if_down_event = 0; 992 return; 993 } 994 wpa_printf(MSG_DEBUG, "nl80211: Interface down (%s/%s)", 995 namebuf, ifname); 996 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) { 997 wpa_printf(MSG_DEBUG, 998 "nl80211: Not the main interface (%s) - do not indicate interface down", 999 drv->first_bss->ifname); 1000 } else if (drv->ignore_if_down_event) { 1001 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " 1002 "event generated by mode change"); 1003 drv->ignore_if_down_event = 0; 1004 } else { 1005 drv->if_disabled = 1; 1006 wpa_supplicant_event(drv->ctx, 1007 EVENT_INTERFACE_DISABLED, NULL); 1008 1009 /* 1010 * Try to get drv again, since it may be removed as 1011 * part of the EVENT_INTERFACE_DISABLED handling for 1012 * dynamic interfaces 1013 */ 1014 drv = nl80211_find_drv(global, ifi->ifi_index, 1015 buf, len); 1016 if (!drv) 1017 return; 1018 } 1019 } 1020 1021 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { 1022 if (if_indextoname(ifi->ifi_index, namebuf) && 1023 linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) { 1024 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1025 "event since interface %s is down", 1026 namebuf); 1027 } else if (if_nametoindex(drv->first_bss->ifname) == 0) { 1028 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1029 "event since interface %s does not exist", 1030 drv->first_bss->ifname); 1031 } else if (drv->if_removed) { 1032 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " 1033 "event since interface %s is marked " 1034 "removed", drv->first_bss->ifname); 1035 } else { 1036 struct i802_bss *bss; 1037 u8 addr[ETH_ALEN]; 1038 1039 /* Re-read MAC address as it may have changed */ 1040 bss = get_bss_ifindex(drv, ifi->ifi_index); 1041 if (bss && 1042 linux_get_ifhwaddr(drv->global->ioctl_sock, 1043 bss->ifname, addr) < 0) { 1044 wpa_printf(MSG_DEBUG, 1045 "nl80211: %s: failed to re-read MAC address", 1046 bss->ifname); 1047 } else if (bss && 1048 os_memcmp(addr, bss->addr, ETH_ALEN) != 0) { 1049 wpa_printf(MSG_DEBUG, 1050 "nl80211: Own MAC address on ifindex %d (%s) changed from " 1051 MACSTR " to " MACSTR, 1052 ifi->ifi_index, bss->ifname, 1053 MAC2STR(bss->addr), 1054 MAC2STR(addr)); 1055 os_memcpy(bss->addr, addr, ETH_ALEN); 1056 } 1057 1058 wpa_printf(MSG_DEBUG, "nl80211: Interface up"); 1059 drv->if_disabled = 0; 1060 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, 1061 NULL); 1062 } 1063 } 1064 1065 /* 1066 * Some drivers send the association event before the operup event--in 1067 * this case, lifting operstate in wpa_driver_nl80211_set_operstate() 1068 * fails. This will hit us when wpa_supplicant does not need to do 1069 * IEEE 802.1X authentication 1070 */ 1071 if (drv->operstate == 1 && 1072 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && 1073 !(ifi->ifi_flags & IFF_RUNNING)) { 1074 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); 1075 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1076 -1, IF_OPER_UP); 1077 } 1078 1079 event_newlink: 1080 if (ifname[0]) 1081 wpa_driver_nl80211_event_newlink(global, drv, ifi->ifi_index, 1082 ifname); 1083 1084 if (ifi->ifi_family == AF_BRIDGE && brid && drv) { 1085 struct i802_bss *bss; 1086 1087 /* device has been added to bridge */ 1088 if (!if_indextoname(brid, namebuf)) { 1089 wpa_printf(MSG_DEBUG, 1090 "nl80211: Could not find bridge ifname for ifindex %u", 1091 brid); 1092 return; 1093 } 1094 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", 1095 brid, namebuf); 1096 add_ifidx(drv, brid, ifi->ifi_index); 1097 1098 for (bss = drv->first_bss; bss; bss = bss->next) { 1099 if (os_strcmp(ifname, bss->ifname) == 0) { 1100 os_strlcpy(bss->brname, namebuf, IFNAMSIZ); 1101 break; 1102 } 1103 } 1104 } 1105 } 1106 1107 1108 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, 1109 struct ifinfomsg *ifi, 1110 u8 *buf, size_t len) 1111 { 1112 struct nl80211_global *global = ctx; 1113 struct wpa_driver_nl80211_data *drv; 1114 int attrlen; 1115 struct rtattr *attr; 1116 u32 brid = 0; 1117 char ifname[IFNAMSIZ + 1]; 1118 char extra[100], *pos, *end; 1119 1120 extra[0] = '\0'; 1121 pos = extra; 1122 end = pos + sizeof(extra); 1123 ifname[0] = '\0'; 1124 1125 attrlen = len; 1126 attr = (struct rtattr *) buf; 1127 while (RTA_OK(attr, attrlen)) { 1128 switch (attr->rta_type) { 1129 case IFLA_IFNAME: 1130 if (RTA_PAYLOAD(attr) >= IFNAMSIZ) 1131 break; 1132 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); 1133 ifname[RTA_PAYLOAD(attr)] = '\0'; 1134 break; 1135 case IFLA_MASTER: 1136 brid = nla_get_u32((struct nlattr *) attr); 1137 pos += os_snprintf(pos, end - pos, " master=%u", brid); 1138 break; 1139 case IFLA_OPERSTATE: 1140 pos += os_snprintf(pos, end - pos, " operstate=%u", 1141 nla_get_u32((struct nlattr *) attr)); 1142 break; 1143 case IFLA_LINKMODE: 1144 pos += os_snprintf(pos, end - pos, " linkmode=%u", 1145 nla_get_u32((struct nlattr *) attr)); 1146 break; 1147 } 1148 attr = RTA_NEXT(attr, attrlen); 1149 } 1150 extra[sizeof(extra) - 1] = '\0'; 1151 1152 wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", 1153 ifi->ifi_index, ifname, extra, ifi->ifi_family, 1154 ifi->ifi_flags, 1155 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", 1156 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", 1157 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", 1158 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); 1159 1160 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); 1161 1162 if (ifi->ifi_family == AF_BRIDGE && brid && drv) { 1163 /* device has been removed from bridge */ 1164 char namebuf[IFNAMSIZ]; 1165 1166 if (!if_indextoname(brid, namebuf)) { 1167 wpa_printf(MSG_DEBUG, 1168 "nl80211: Could not find bridge ifname for ifindex %u", 1169 brid); 1170 } else { 1171 wpa_printf(MSG_DEBUG, 1172 "nl80211: Remove ifindex %u for bridge %s", 1173 brid, namebuf); 1174 } 1175 del_ifidx(drv, brid, ifi->ifi_index); 1176 } 1177 1178 if (ifi->ifi_family != AF_BRIDGE || !brid) 1179 wpa_driver_nl80211_event_dellink(global, drv, ifi->ifi_index, 1180 ifname); 1181 } 1182 1183 1184 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) 1185 { 1186 struct nl_msg *msg; 1187 int ret; 1188 struct nl80211_bss_info_arg arg; 1189 1190 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN); 1191 os_memset(&arg, 0, sizeof(arg)); 1192 arg.drv = drv; 1193 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); 1194 if (ret == 0) { 1195 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ? 1196 arg.ibss_freq : arg.assoc_freq; 1197 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " 1198 "associated BSS from scan results: %u MHz", freq); 1199 if (freq) 1200 drv->assoc_freq = freq; 1201 return drv->assoc_freq; 1202 } 1203 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " 1204 "(%s)", ret, strerror(-ret)); 1205 return drv->assoc_freq; 1206 } 1207 1208 1209 static int get_link_signal(struct nl_msg *msg, void *arg) 1210 { 1211 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1212 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1213 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; 1214 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { 1215 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, 1216 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, 1217 [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .type = NLA_U8 }, 1218 }; 1219 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; 1220 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { 1221 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, 1222 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, 1223 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, 1224 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, 1225 }; 1226 struct wpa_signal_info *sig_change = arg; 1227 1228 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1229 genlmsg_attrlen(gnlh, 0), NULL); 1230 if (!tb[NL80211_ATTR_STA_INFO] || 1231 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, 1232 tb[NL80211_ATTR_STA_INFO], policy)) 1233 return NL_SKIP; 1234 if (!sinfo[NL80211_STA_INFO_SIGNAL]) 1235 return NL_SKIP; 1236 1237 sig_change->current_signal = 1238 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); 1239 1240 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) 1241 sig_change->avg_signal = 1242 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); 1243 else 1244 sig_change->avg_signal = 0; 1245 1246 if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]) 1247 sig_change->avg_beacon_signal = 1248 (s8) 1249 nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]); 1250 else 1251 sig_change->avg_beacon_signal = 0; 1252 1253 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { 1254 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, 1255 sinfo[NL80211_STA_INFO_TX_BITRATE], 1256 rate_policy)) { 1257 sig_change->current_txrate = 0; 1258 } else { 1259 if (rinfo[NL80211_RATE_INFO_BITRATE]) { 1260 sig_change->current_txrate = 1261 nla_get_u16(rinfo[ 1262 NL80211_RATE_INFO_BITRATE]) * 100; 1263 } 1264 } 1265 } 1266 1267 return NL_SKIP; 1268 } 1269 1270 1271 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 1272 struct wpa_signal_info *sig) 1273 { 1274 struct nl_msg *msg; 1275 1276 sig->current_signal = -9999; 1277 sig->current_txrate = 0; 1278 1279 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) || 1280 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) { 1281 nlmsg_free(msg); 1282 return -ENOBUFS; 1283 } 1284 1285 return send_and_recv_msgs(drv, msg, get_link_signal, sig); 1286 } 1287 1288 1289 static int get_link_noise(struct nl_msg *msg, void *arg) 1290 { 1291 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 1292 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1293 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 1294 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 1295 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 1296 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 1297 }; 1298 struct wpa_signal_info *sig_change = arg; 1299 1300 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1301 genlmsg_attrlen(gnlh, 0), NULL); 1302 1303 if (!tb[NL80211_ATTR_SURVEY_INFO]) { 1304 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); 1305 return NL_SKIP; 1306 } 1307 1308 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 1309 tb[NL80211_ATTR_SURVEY_INFO], 1310 survey_policy)) { 1311 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " 1312 "attributes!"); 1313 return NL_SKIP; 1314 } 1315 1316 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) 1317 return NL_SKIP; 1318 1319 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != 1320 sig_change->frequency) 1321 return NL_SKIP; 1322 1323 if (!sinfo[NL80211_SURVEY_INFO_NOISE]) 1324 return NL_SKIP; 1325 1326 sig_change->current_noise = 1327 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 1328 1329 return NL_SKIP; 1330 } 1331 1332 1333 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 1334 struct wpa_signal_info *sig_change) 1335 { 1336 struct nl_msg *msg; 1337 1338 sig_change->current_noise = 9999; 1339 sig_change->frequency = drv->assoc_freq; 1340 1341 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 1342 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); 1343 } 1344 1345 1346 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, 1347 void *handle) 1348 { 1349 struct nl_cb *cb = eloop_ctx; 1350 int res; 1351 1352 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); 1353 1354 res = nl_recvmsgs(handle, cb); 1355 if (res < 0) { 1356 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", 1357 __func__, res); 1358 } 1359 } 1360 1361 1362 /** 1363 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain 1364 * @priv: driver_nl80211 private data 1365 * @alpha2_arg: country to which to switch to 1366 * Returns: 0 on success, -1 on failure 1367 * 1368 * This asks nl80211 to set the regulatory domain for given 1369 * country ISO / IEC alpha2. 1370 */ 1371 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) 1372 { 1373 struct i802_bss *bss = priv; 1374 struct wpa_driver_nl80211_data *drv = bss->drv; 1375 char alpha2[3]; 1376 struct nl_msg *msg; 1377 1378 msg = nlmsg_alloc(); 1379 if (!msg) 1380 return -ENOMEM; 1381 1382 alpha2[0] = alpha2_arg[0]; 1383 alpha2[1] = alpha2_arg[1]; 1384 alpha2[2] = '\0'; 1385 1386 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) || 1387 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) { 1388 nlmsg_free(msg); 1389 return -EINVAL; 1390 } 1391 if (send_and_recv_msgs(drv, msg, NULL, NULL)) 1392 return -EINVAL; 1393 return 0; 1394 } 1395 1396 1397 static int nl80211_get_country(struct nl_msg *msg, void *arg) 1398 { 1399 char *alpha2 = arg; 1400 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; 1401 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 1402 1403 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 1404 genlmsg_attrlen(gnlh, 0), NULL); 1405 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { 1406 wpa_printf(MSG_DEBUG, "nl80211: No country information available"); 1407 return NL_SKIP; 1408 } 1409 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); 1410 return NL_SKIP; 1411 } 1412 1413 1414 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) 1415 { 1416 struct i802_bss *bss = priv; 1417 struct wpa_driver_nl80211_data *drv = bss->drv; 1418 struct nl_msg *msg; 1419 int ret; 1420 1421 msg = nlmsg_alloc(); 1422 if (!msg) 1423 return -ENOMEM; 1424 1425 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); 1426 alpha2[0] = '\0'; 1427 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); 1428 if (!alpha2[0]) 1429 ret = -1; 1430 1431 return ret; 1432 } 1433 1434 1435 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) 1436 { 1437 int ret; 1438 1439 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 1440 if (global->nl_cb == NULL) { 1441 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " 1442 "callbacks"); 1443 return -1; 1444 } 1445 1446 global->nl = nl_create_handle(global->nl_cb, "nl"); 1447 if (global->nl == NULL) 1448 goto err; 1449 1450 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); 1451 if (global->nl80211_id < 0) { 1452 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " 1453 "found"); 1454 goto err; 1455 } 1456 1457 global->nl_event = nl_create_handle(global->nl_cb, "event"); 1458 if (global->nl_event == NULL) 1459 goto err; 1460 1461 ret = nl_get_multicast_id(global, "nl80211", "scan"); 1462 if (ret >= 0) 1463 ret = nl_socket_add_membership(global->nl_event, ret); 1464 if (ret < 0) { 1465 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 1466 "membership for scan events: %d (%s)", 1467 ret, strerror(-ret)); 1468 goto err; 1469 } 1470 1471 ret = nl_get_multicast_id(global, "nl80211", "mlme"); 1472 if (ret >= 0) 1473 ret = nl_socket_add_membership(global->nl_event, ret); 1474 if (ret < 0) { 1475 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " 1476 "membership for mlme events: %d (%s)", 1477 ret, strerror(-ret)); 1478 goto err; 1479 } 1480 1481 ret = nl_get_multicast_id(global, "nl80211", "regulatory"); 1482 if (ret >= 0) 1483 ret = nl_socket_add_membership(global->nl_event, ret); 1484 if (ret < 0) { 1485 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 1486 "membership for regulatory events: %d (%s)", 1487 ret, strerror(-ret)); 1488 /* Continue without regulatory events */ 1489 } 1490 1491 ret = nl_get_multicast_id(global, "nl80211", "vendor"); 1492 if (ret >= 0) 1493 ret = nl_socket_add_membership(global->nl_event, ret); 1494 if (ret < 0) { 1495 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " 1496 "membership for vendor events: %d (%s)", 1497 ret, strerror(-ret)); 1498 /* Continue without vendor events */ 1499 } 1500 1501 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 1502 no_seq_check, NULL); 1503 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 1504 process_global_event, global); 1505 1506 nl80211_register_eloop_read(&global->nl_event, 1507 wpa_driver_nl80211_event_receive, 1508 global->nl_cb); 1509 1510 return 0; 1511 1512 err: 1513 nl_destroy_handles(&global->nl_event); 1514 nl_destroy_handles(&global->nl); 1515 nl_cb_put(global->nl_cb); 1516 global->nl_cb = NULL; 1517 return -1; 1518 } 1519 1520 1521 static void nl80211_check_global(struct nl80211_global *global) 1522 { 1523 struct nl_handle *handle; 1524 const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL }; 1525 int ret; 1526 unsigned int i; 1527 1528 /* 1529 * Try to re-add memberships to handle case of cfg80211 getting reloaded 1530 * and all registration having been cleared. 1531 */ 1532 handle = (void *) (((intptr_t) global->nl_event) ^ 1533 ELOOP_SOCKET_INVALID); 1534 1535 for (i = 0; groups[i]; i++) { 1536 ret = nl_get_multicast_id(global, "nl80211", groups[i]); 1537 if (ret >= 0) 1538 ret = nl_socket_add_membership(handle, ret); 1539 if (ret < 0) { 1540 wpa_printf(MSG_INFO, 1541 "nl80211: Could not re-add multicast membership for %s events: %d (%s)", 1542 groups[i], ret, strerror(-ret)); 1543 } 1544 } 1545 } 1546 1547 1548 static void wpa_driver_nl80211_rfkill_blocked(void *ctx) 1549 { 1550 struct wpa_driver_nl80211_data *drv = ctx; 1551 1552 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); 1553 1554 /* 1555 * rtnetlink ifdown handler will report interfaces other than the P2P 1556 * Device interface as disabled. 1557 */ 1558 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 1559 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); 1560 } 1561 1562 1563 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) 1564 { 1565 struct wpa_driver_nl80211_data *drv = ctx; 1566 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); 1567 if (i802_set_iface_flags(drv->first_bss, 1)) { 1568 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " 1569 "after rfkill unblock"); 1570 return; 1571 } 1572 1573 if (is_p2p_net_interface(drv->nlmode)) 1574 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 1575 1576 /* 1577 * rtnetlink ifup handler will report interfaces other than the P2P 1578 * Device interface as enabled. 1579 */ 1580 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 1581 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); 1582 } 1583 1584 1585 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, 1586 void *eloop_ctx, 1587 void *handle) 1588 { 1589 struct wpa_driver_nl80211_data *drv = eloop_ctx; 1590 u8 data[2048]; 1591 struct msghdr msg; 1592 struct iovec entry; 1593 u8 control[512]; 1594 struct cmsghdr *cmsg; 1595 int res, found_ee = 0, found_wifi = 0, acked = 0; 1596 union wpa_event_data event; 1597 1598 memset(&msg, 0, sizeof(msg)); 1599 msg.msg_iov = &entry; 1600 msg.msg_iovlen = 1; 1601 entry.iov_base = data; 1602 entry.iov_len = sizeof(data); 1603 msg.msg_control = &control; 1604 msg.msg_controllen = sizeof(control); 1605 1606 res = recvmsg(sock, &msg, MSG_ERRQUEUE); 1607 /* if error or not fitting 802.3 header, return */ 1608 if (res < 14) 1609 return; 1610 1611 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) 1612 { 1613 if (cmsg->cmsg_level == SOL_SOCKET && 1614 cmsg->cmsg_type == SCM_WIFI_STATUS) { 1615 int *ack; 1616 1617 found_wifi = 1; 1618 ack = (void *)CMSG_DATA(cmsg); 1619 acked = *ack; 1620 } 1621 1622 if (cmsg->cmsg_level == SOL_PACKET && 1623 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { 1624 struct sock_extended_err *err = 1625 (struct sock_extended_err *)CMSG_DATA(cmsg); 1626 1627 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) 1628 found_ee = 1; 1629 } 1630 } 1631 1632 if (!found_ee || !found_wifi) 1633 return; 1634 1635 memset(&event, 0, sizeof(event)); 1636 event.eapol_tx_status.dst = data; 1637 event.eapol_tx_status.data = data + 14; 1638 event.eapol_tx_status.data_len = res - 14; 1639 event.eapol_tx_status.ack = acked; 1640 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); 1641 } 1642 1643 1644 static int nl80211_init_bss(struct i802_bss *bss) 1645 { 1646 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); 1647 if (!bss->nl_cb) 1648 return -1; 1649 1650 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, 1651 no_seq_check, NULL); 1652 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, 1653 process_bss_event, bss); 1654 1655 return 0; 1656 } 1657 1658 1659 static void nl80211_destroy_bss(struct i802_bss *bss) 1660 { 1661 nl_cb_put(bss->nl_cb); 1662 bss->nl_cb = NULL; 1663 } 1664 1665 1666 static void 1667 wpa_driver_nl80211_drv_init_rfkill(struct wpa_driver_nl80211_data *drv) 1668 { 1669 struct rfkill_config *rcfg; 1670 1671 if (drv->rfkill) 1672 return; 1673 1674 rcfg = os_zalloc(sizeof(*rcfg)); 1675 if (!rcfg) 1676 return; 1677 1678 rcfg->ctx = drv; 1679 1680 /* rfkill uses netdev sysfs for initialization. However, P2P Device is 1681 * not associated with a netdev, so use the name of some other interface 1682 * sharing the same wiphy as the P2P Device interface. 1683 * 1684 * Note: This is valid, as a P2P Device interface is always dynamically 1685 * created and is created only once another wpa_s interface was added. 1686 */ 1687 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) { 1688 struct nl80211_global *global = drv->global; 1689 struct wpa_driver_nl80211_data *tmp1; 1690 1691 dl_list_for_each(tmp1, &global->interfaces, 1692 struct wpa_driver_nl80211_data, list) { 1693 if (drv == tmp1 || drv->wiphy_idx != tmp1->wiphy_idx || 1694 !tmp1->rfkill) 1695 continue; 1696 1697 wpa_printf(MSG_DEBUG, 1698 "nl80211: Use (%s) to initialize P2P Device rfkill", 1699 tmp1->first_bss->ifname); 1700 os_strlcpy(rcfg->ifname, tmp1->first_bss->ifname, 1701 sizeof(rcfg->ifname)); 1702 break; 1703 } 1704 } else { 1705 os_strlcpy(rcfg->ifname, drv->first_bss->ifname, 1706 sizeof(rcfg->ifname)); 1707 } 1708 1709 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; 1710 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; 1711 drv->rfkill = rfkill_init(rcfg); 1712 if (!drv->rfkill) { 1713 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); 1714 os_free(rcfg); 1715 } 1716 } 1717 1718 1719 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, 1720 void *global_priv, int hostapd, 1721 const u8 *set_addr, 1722 const char *driver_params) 1723 { 1724 struct wpa_driver_nl80211_data *drv; 1725 struct i802_bss *bss; 1726 1727 if (global_priv == NULL) 1728 return NULL; 1729 drv = os_zalloc(sizeof(*drv)); 1730 if (drv == NULL) 1731 return NULL; 1732 drv->global = global_priv; 1733 drv->ctx = ctx; 1734 drv->hostapd = !!hostapd; 1735 drv->eapol_sock = -1; 1736 1737 /* 1738 * There is no driver capability flag for this, so assume it is 1739 * supported and disable this on first attempt to use if the driver 1740 * rejects the command due to missing support. 1741 */ 1742 drv->set_rekey_offload = 1; 1743 1744 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); 1745 drv->if_indices = drv->default_if_indices; 1746 drv->if_indices_reason = drv->default_if_indices_reason; 1747 1748 drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); 1749 if (!drv->first_bss) { 1750 os_free(drv); 1751 return NULL; 1752 } 1753 bss = drv->first_bss; 1754 bss->drv = drv; 1755 bss->ctx = ctx; 1756 1757 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); 1758 drv->monitor_ifidx = -1; 1759 drv->monitor_sock = -1; 1760 drv->eapol_tx_sock = -1; 1761 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; 1762 1763 if (nl80211_init_bss(bss)) 1764 goto failed; 1765 1766 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params)) 1767 goto failed; 1768 1769 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); 1770 if (drv->eapol_tx_sock < 0) 1771 goto failed; 1772 1773 if (drv->data_tx_status) { 1774 int enabled = 1; 1775 1776 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, 1777 &enabled, sizeof(enabled)) < 0) { 1778 wpa_printf(MSG_DEBUG, 1779 "nl80211: wifi status sockopt failed\n"); 1780 drv->data_tx_status = 0; 1781 if (!drv->use_monitor) 1782 drv->capa.flags &= 1783 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; 1784 } else { 1785 eloop_register_read_sock(drv->eapol_tx_sock, 1786 wpa_driver_nl80211_handle_eapol_tx_status, 1787 drv, NULL); 1788 } 1789 } 1790 1791 if (drv->global) { 1792 nl80211_check_global(drv->global); 1793 dl_list_add(&drv->global->interfaces, &drv->list); 1794 drv->in_interface_list = 1; 1795 } 1796 1797 return bss; 1798 1799 failed: 1800 wpa_driver_nl80211_deinit(bss); 1801 return NULL; 1802 } 1803 1804 1805 /** 1806 * wpa_driver_nl80211_init - Initialize nl80211 driver interface 1807 * @ctx: context to be used when calling wpa_supplicant functions, 1808 * e.g., wpa_supplicant_event() 1809 * @ifname: interface name, e.g., wlan0 1810 * @global_priv: private driver global data from global_init() 1811 * Returns: Pointer to private data, %NULL on failure 1812 */ 1813 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, 1814 void *global_priv) 1815 { 1816 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL, 1817 NULL); 1818 } 1819 1820 1821 static int nl80211_register_frame(struct i802_bss *bss, 1822 struct nl_handle *nl_handle, 1823 u16 type, const u8 *match, size_t match_len) 1824 { 1825 struct wpa_driver_nl80211_data *drv = bss->drv; 1826 struct nl_msg *msg; 1827 int ret; 1828 char buf[30]; 1829 1830 buf[0] = '\0'; 1831 wpa_snprintf_hex(buf, sizeof(buf), match, match_len); 1832 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s", 1833 type, fc2str(type), nl_handle, buf); 1834 1835 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_ACTION)) || 1836 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) || 1837 nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) { 1838 nlmsg_free(msg); 1839 return -1; 1840 } 1841 1842 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); 1843 if (ret) { 1844 wpa_printf(MSG_DEBUG, "nl80211: Register frame command " 1845 "failed (type=%u): ret=%d (%s)", 1846 type, ret, strerror(-ret)); 1847 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", 1848 match, match_len); 1849 } 1850 return ret; 1851 } 1852 1853 1854 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) 1855 { 1856 if (bss->nl_mgmt) { 1857 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " 1858 "already on! (nl_mgmt=%p)", bss->nl_mgmt); 1859 return -1; 1860 } 1861 1862 bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt"); 1863 if (bss->nl_mgmt == NULL) 1864 return -1; 1865 1866 return 0; 1867 } 1868 1869 1870 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) 1871 { 1872 nl80211_register_eloop_read(&bss->nl_mgmt, 1873 wpa_driver_nl80211_event_receive, 1874 bss->nl_cb); 1875 } 1876 1877 1878 static int nl80211_register_action_frame(struct i802_bss *bss, 1879 const u8 *match, size_t match_len) 1880 { 1881 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); 1882 return nl80211_register_frame(bss, bss->nl_mgmt, 1883 type, match, match_len); 1884 } 1885 1886 1887 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) 1888 { 1889 struct wpa_driver_nl80211_data *drv = bss->drv; 1890 int ret = 0; 1891 1892 if (nl80211_alloc_mgmt_handle(bss)) 1893 return -1; 1894 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " 1895 "handle %p", bss->nl_mgmt); 1896 1897 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 1898 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); 1899 1900 /* register for any AUTH message */ 1901 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); 1902 } 1903 1904 #ifdef CONFIG_INTERWORKING 1905 /* QoS Map Configure */ 1906 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) 1907 ret = -1; 1908 #endif /* CONFIG_INTERWORKING */ 1909 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) 1910 /* GAS Initial Request */ 1911 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) 1912 ret = -1; 1913 /* GAS Initial Response */ 1914 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) 1915 ret = -1; 1916 /* GAS Comeback Request */ 1917 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) 1918 ret = -1; 1919 /* GAS Comeback Response */ 1920 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) 1921 ret = -1; 1922 /* Protected GAS Initial Request */ 1923 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) 1924 ret = -1; 1925 /* Protected GAS Initial Response */ 1926 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) 1927 ret = -1; 1928 /* Protected GAS Comeback Request */ 1929 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) 1930 ret = -1; 1931 /* Protected GAS Comeback Response */ 1932 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) 1933 ret = -1; 1934 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */ 1935 #ifdef CONFIG_P2P 1936 /* P2P Public Action */ 1937 if (nl80211_register_action_frame(bss, 1938 (u8 *) "\x04\x09\x50\x6f\x9a\x09", 1939 6) < 0) 1940 ret = -1; 1941 /* P2P Action */ 1942 if (nl80211_register_action_frame(bss, 1943 (u8 *) "\x7f\x50\x6f\x9a\x09", 1944 5) < 0) 1945 ret = -1; 1946 #endif /* CONFIG_P2P */ 1947 #ifdef CONFIG_IEEE80211W 1948 /* SA Query Response */ 1949 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) 1950 ret = -1; 1951 #endif /* CONFIG_IEEE80211W */ 1952 #ifdef CONFIG_TDLS 1953 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { 1954 /* TDLS Discovery Response */ 1955 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 1956 0) 1957 ret = -1; 1958 } 1959 #endif /* CONFIG_TDLS */ 1960 #ifdef CONFIG_FST 1961 /* FST Action frames */ 1962 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0) 1963 ret = -1; 1964 #endif /* CONFIG_FST */ 1965 1966 /* FT Action frames */ 1967 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 1968 ret = -1; 1969 else 1970 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | 1971 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; 1972 1973 /* WNM - BSS Transition Management Request */ 1974 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) 1975 ret = -1; 1976 /* WNM-Sleep Mode Response */ 1977 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) 1978 ret = -1; 1979 1980 #ifdef CONFIG_HS20 1981 /* WNM-Notification */ 1982 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) 1983 ret = -1; 1984 #endif /* CONFIG_HS20 */ 1985 1986 /* WMM-AC ADDTS Response */ 1987 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0) 1988 ret = -1; 1989 1990 /* WMM-AC DELTS */ 1991 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0) 1992 ret = -1; 1993 1994 /* Radio Measurement - Neighbor Report Response */ 1995 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0) 1996 ret = -1; 1997 1998 /* Radio Measurement - Radio Measurement Request */ 1999 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x00", 2) < 0) 2000 ret = -1; 2001 2002 /* Radio Measurement - Link Measurement Request */ 2003 if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) && 2004 (nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0)) 2005 ret = -1; 2006 2007 nl80211_mgmt_handle_register_eloop(bss); 2008 2009 return ret; 2010 } 2011 2012 2013 static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss) 2014 { 2015 int ret = 0; 2016 2017 if (nl80211_alloc_mgmt_handle(bss)) 2018 return -1; 2019 2020 wpa_printf(MSG_DEBUG, 2021 "nl80211: Subscribe to mgmt frames with mesh handle %p", 2022 bss->nl_mgmt); 2023 2024 /* Auth frames for mesh SAE */ 2025 if (nl80211_register_frame(bss, bss->nl_mgmt, 2026 (WLAN_FC_TYPE_MGMT << 2) | 2027 (WLAN_FC_STYPE_AUTH << 4), 2028 NULL, 0) < 0) 2029 ret = -1; 2030 2031 /* Mesh peering open */ 2032 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0) 2033 ret = -1; 2034 /* Mesh peering confirm */ 2035 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0) 2036 ret = -1; 2037 /* Mesh peering close */ 2038 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0) 2039 ret = -1; 2040 2041 nl80211_mgmt_handle_register_eloop(bss); 2042 2043 return ret; 2044 } 2045 2046 2047 static int nl80211_register_spurious_class3(struct i802_bss *bss) 2048 { 2049 struct nl_msg *msg; 2050 int ret; 2051 2052 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME); 2053 ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL); 2054 if (ret) { 2055 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " 2056 "failed: ret=%d (%s)", 2057 ret, strerror(-ret)); 2058 } 2059 return ret; 2060 } 2061 2062 2063 static int nl80211_action_subscribe_ap(struct i802_bss *bss) 2064 { 2065 int ret = 0; 2066 2067 /* Public Action frames */ 2068 if (nl80211_register_action_frame(bss, (u8 *) "\x04", 1) < 0) 2069 ret = -1; 2070 /* RRM Measurement Report */ 2071 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x01", 2) < 0) 2072 ret = -1; 2073 /* RRM Neighbor Report Request */ 2074 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x04", 2) < 0) 2075 ret = -1; 2076 /* FT Action frames */ 2077 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) 2078 ret = -1; 2079 #ifdef CONFIG_IEEE80211W 2080 /* SA Query */ 2081 if (nl80211_register_action_frame(bss, (u8 *) "\x08", 1) < 0) 2082 ret = -1; 2083 #endif /* CONFIG_IEEE80211W */ 2084 /* Protected Dual of Public Action */ 2085 if (nl80211_register_action_frame(bss, (u8 *) "\x09", 1) < 0) 2086 ret = -1; 2087 /* WNM */ 2088 if (nl80211_register_action_frame(bss, (u8 *) "\x0a", 1) < 0) 2089 ret = -1; 2090 /* WMM */ 2091 if (nl80211_register_action_frame(bss, (u8 *) "\x11", 1) < 0) 2092 ret = -1; 2093 #ifdef CONFIG_FST 2094 /* FST Action frames */ 2095 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0) 2096 ret = -1; 2097 #endif /* CONFIG_FST */ 2098 /* Vendor-specific */ 2099 if (nl80211_register_action_frame(bss, (u8 *) "\x7f", 1) < 0) 2100 ret = -1; 2101 2102 return ret; 2103 } 2104 2105 2106 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) 2107 { 2108 static const int stypes[] = { 2109 WLAN_FC_STYPE_AUTH, 2110 WLAN_FC_STYPE_ASSOC_REQ, 2111 WLAN_FC_STYPE_REASSOC_REQ, 2112 WLAN_FC_STYPE_DISASSOC, 2113 WLAN_FC_STYPE_DEAUTH, 2114 WLAN_FC_STYPE_PROBE_REQ, 2115 /* Beacon doesn't work as mac80211 doesn't currently allow 2116 * it, but it wouldn't really be the right thing anyway as 2117 * it isn't per interface ... maybe just dump the scan 2118 * results periodically for OLBC? 2119 */ 2120 /* WLAN_FC_STYPE_BEACON, */ 2121 }; 2122 unsigned int i; 2123 2124 if (nl80211_alloc_mgmt_handle(bss)) 2125 return -1; 2126 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 2127 "handle %p", bss->nl_mgmt); 2128 2129 for (i = 0; i < ARRAY_SIZE(stypes); i++) { 2130 if (nl80211_register_frame(bss, bss->nl_mgmt, 2131 (WLAN_FC_TYPE_MGMT << 2) | 2132 (stypes[i] << 4), 2133 NULL, 0) < 0) { 2134 goto out_err; 2135 } 2136 } 2137 2138 if (nl80211_action_subscribe_ap(bss)) 2139 goto out_err; 2140 2141 if (nl80211_register_spurious_class3(bss)) 2142 goto out_err; 2143 2144 if (nl80211_get_wiphy_data_ap(bss) == NULL) 2145 goto out_err; 2146 2147 nl80211_mgmt_handle_register_eloop(bss); 2148 return 0; 2149 2150 out_err: 2151 nl_destroy_handles(&bss->nl_mgmt); 2152 return -1; 2153 } 2154 2155 2156 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) 2157 { 2158 if (nl80211_alloc_mgmt_handle(bss)) 2159 return -1; 2160 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " 2161 "handle %p (device SME)", bss->nl_mgmt); 2162 2163 if (nl80211_action_subscribe_ap(bss)) 2164 goto out_err; 2165 2166 nl80211_mgmt_handle_register_eloop(bss); 2167 return 0; 2168 2169 out_err: 2170 nl_destroy_handles(&bss->nl_mgmt); 2171 return -1; 2172 } 2173 2174 2175 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) 2176 { 2177 if (bss->nl_mgmt == NULL) 2178 return; 2179 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " 2180 "(%s)", bss->nl_mgmt, reason); 2181 nl80211_destroy_eloop_handle(&bss->nl_mgmt); 2182 2183 nl80211_put_wiphy_data_ap(bss); 2184 } 2185 2186 2187 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) 2188 { 2189 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); 2190 } 2191 2192 2193 static void nl80211_del_p2pdev(struct i802_bss *bss) 2194 { 2195 struct nl_msg *msg; 2196 int ret; 2197 2198 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE); 2199 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL); 2200 2201 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", 2202 bss->ifname, (long long unsigned int) bss->wdev_id, 2203 strerror(-ret)); 2204 } 2205 2206 2207 static int nl80211_set_p2pdev(struct i802_bss *bss, int start) 2208 { 2209 struct nl_msg *msg; 2210 int ret; 2211 2212 msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE : 2213 NL80211_CMD_STOP_P2P_DEVICE); 2214 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL); 2215 2216 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", 2217 start ? "Start" : "Stop", 2218 bss->ifname, (long long unsigned int) bss->wdev_id, 2219 strerror(-ret)); 2220 return ret; 2221 } 2222 2223 2224 static int i802_set_iface_flags(struct i802_bss *bss, int up) 2225 { 2226 enum nl80211_iftype nlmode; 2227 2228 nlmode = nl80211_get_ifmode(bss); 2229 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 2230 return linux_set_iface_flags(bss->drv->global->ioctl_sock, 2231 bss->ifname, up); 2232 } 2233 2234 /* P2P Device has start/stop which is equivalent */ 2235 return nl80211_set_p2pdev(bss, up); 2236 } 2237 2238 2239 #ifdef CONFIG_TESTING_OPTIONS 2240 static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg) 2241 { 2242 /* struct wpa_driver_nl80211_data *drv = arg; */ 2243 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 2244 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 2245 2246 2247 wpa_printf(MSG_DEBUG, 2248 "nl80211: QCA vendor test command response received"); 2249 2250 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 2251 genlmsg_attrlen(gnlh, 0), NULL); 2252 if (!tb[NL80211_ATTR_VENDOR_DATA]) { 2253 wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute"); 2254 return NL_SKIP; 2255 } 2256 2257 wpa_hexdump(MSG_DEBUG, 2258 "nl80211: Received QCA vendor test command response", 2259 nla_data(tb[NL80211_ATTR_VENDOR_DATA]), 2260 nla_len(tb[NL80211_ATTR_VENDOR_DATA])); 2261 2262 return NL_SKIP; 2263 } 2264 #endif /* CONFIG_TESTING_OPTIONS */ 2265 2266 2267 static void qca_vendor_test(struct wpa_driver_nl80211_data *drv) 2268 { 2269 #ifdef CONFIG_TESTING_OPTIONS 2270 struct nl_msg *msg; 2271 struct nlattr *params; 2272 int ret; 2273 2274 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 2275 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 2276 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 2277 QCA_NL80211_VENDOR_SUBCMD_TEST) || 2278 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 2279 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) { 2280 nlmsg_free(msg); 2281 return; 2282 } 2283 nla_nest_end(msg, params); 2284 2285 ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv); 2286 wpa_printf(MSG_DEBUG, 2287 "nl80211: QCA vendor test command returned %d (%s)", 2288 ret, strerror(-ret)); 2289 #endif /* CONFIG_TESTING_OPTIONS */ 2290 } 2291 2292 2293 static int 2294 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 2295 const u8 *set_addr, int first, 2296 const char *driver_params) 2297 { 2298 struct i802_bss *bss = drv->first_bss; 2299 int send_rfkill_event = 0; 2300 enum nl80211_iftype nlmode; 2301 2302 drv->ifindex = if_nametoindex(bss->ifname); 2303 bss->ifindex = drv->ifindex; 2304 bss->wdev_id = drv->global->if_add_wdevid; 2305 bss->wdev_id_set = drv->global->if_add_wdevid_set; 2306 2307 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; 2308 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; 2309 drv->global->if_add_wdevid_set = 0; 2310 2311 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 2312 bss->static_ap = 1; 2313 2314 if (first && 2315 nl80211_get_ifmode(bss) != NL80211_IFTYPE_P2P_DEVICE && 2316 linux_iface_up(drv->global->ioctl_sock, bss->ifname) > 0) 2317 drv->start_iface_up = 1; 2318 2319 if (wpa_driver_nl80211_capa(drv)) 2320 return -1; 2321 2322 if (driver_params && nl80211_set_param(bss, driver_params) < 0) 2323 return -1; 2324 2325 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", 2326 bss->ifname, drv->phyname); 2327 2328 if (set_addr && 2329 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || 2330 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 2331 set_addr))) 2332 return -1; 2333 2334 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) 2335 drv->start_mode_ap = 1; 2336 2337 if (drv->hostapd || bss->static_ap) 2338 nlmode = NL80211_IFTYPE_AP; 2339 else if (bss->if_dynamic || 2340 nl80211_get_ifmode(bss) == NL80211_IFTYPE_MESH_POINT) 2341 nlmode = nl80211_get_ifmode(bss); 2342 else 2343 nlmode = NL80211_IFTYPE_STATION; 2344 2345 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { 2346 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); 2347 return -1; 2348 } 2349 2350 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 2351 nl80211_get_macaddr(bss); 2352 2353 wpa_driver_nl80211_drv_init_rfkill(drv); 2354 2355 if (!rfkill_is_blocked(drv->rfkill)) { 2356 int ret = i802_set_iface_flags(bss, 1); 2357 if (ret) { 2358 wpa_printf(MSG_ERROR, "nl80211: Could not set " 2359 "interface '%s' UP", bss->ifname); 2360 return ret; 2361 } 2362 2363 if (is_p2p_net_interface(nlmode)) 2364 nl80211_disable_11b_rates(bss->drv, 2365 bss->drv->ifindex, 1); 2366 2367 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 2368 return ret; 2369 } else { 2370 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " 2371 "interface '%s' due to rfkill", bss->ifname); 2372 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) 2373 drv->if_disabled = 1; 2374 2375 send_rfkill_event = 1; 2376 } 2377 2378 if (!drv->hostapd && nlmode != NL80211_IFTYPE_P2P_DEVICE) 2379 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 2380 1, IF_OPER_DORMANT); 2381 2382 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { 2383 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 2384 bss->addr)) 2385 return -1; 2386 os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN); 2387 } 2388 2389 if (send_rfkill_event) { 2390 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, 2391 drv, drv->ctx); 2392 } 2393 2394 if (drv->vendor_cmd_test_avail) 2395 qca_vendor_test(drv); 2396 2397 return 0; 2398 } 2399 2400 2401 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) 2402 { 2403 struct nl_msg *msg; 2404 2405 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", 2406 drv->ifindex); 2407 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON); 2408 return send_and_recv_msgs(drv, msg, NULL, NULL); 2409 } 2410 2411 2412 /** 2413 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface 2414 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() 2415 * 2416 * Shut down driver interface and processing of driver events. Free 2417 * private data buffer if one was allocated in wpa_driver_nl80211_init(). 2418 */ 2419 static void wpa_driver_nl80211_deinit(struct i802_bss *bss) 2420 { 2421 struct wpa_driver_nl80211_data *drv = bss->drv; 2422 unsigned int i; 2423 2424 wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d", 2425 bss->ifname, drv->disabled_11b_rates); 2426 2427 bss->in_deinit = 1; 2428 if (drv->data_tx_status) 2429 eloop_unregister_read_sock(drv->eapol_tx_sock); 2430 if (drv->eapol_tx_sock >= 0) 2431 close(drv->eapol_tx_sock); 2432 2433 if (bss->nl_preq) 2434 wpa_driver_nl80211_probe_req_report(bss, 0); 2435 if (bss->added_if_into_bridge) { 2436 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 2437 bss->ifname) < 0) 2438 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 2439 "interface %s from bridge %s: %s", 2440 bss->ifname, bss->brname, strerror(errno)); 2441 if (drv->rtnl_sk) 2442 nl80211_handle_destroy(drv->rtnl_sk); 2443 } 2444 if (bss->added_bridge) { 2445 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname, 2446 0) < 0) 2447 wpa_printf(MSG_INFO, 2448 "nl80211: Could not set bridge %s down", 2449 bss->brname); 2450 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 2451 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 2452 "bridge %s: %s", 2453 bss->brname, strerror(errno)); 2454 } 2455 2456 nl80211_remove_monitor_interface(drv); 2457 2458 if (is_ap_interface(drv->nlmode)) 2459 wpa_driver_nl80211_del_beacon(drv); 2460 2461 if (drv->eapol_sock >= 0) { 2462 eloop_unregister_read_sock(drv->eapol_sock); 2463 close(drv->eapol_sock); 2464 } 2465 2466 if (drv->if_indices != drv->default_if_indices) 2467 os_free(drv->if_indices); 2468 2469 if (drv->if_indices_reason != drv->default_if_indices_reason) 2470 os_free(drv->if_indices_reason); 2471 2472 if (drv->disabled_11b_rates) 2473 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 2474 2475 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, 2476 IF_OPER_UP); 2477 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx); 2478 rfkill_deinit(drv->rfkill); 2479 2480 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); 2481 2482 if (!drv->start_iface_up) 2483 (void) i802_set_iface_flags(bss, 0); 2484 2485 if (drv->addr_changed) { 2486 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 2487 0) < 0) { 2488 wpa_printf(MSG_DEBUG, 2489 "nl80211: Could not set interface down to restore permanent MAC address"); 2490 } 2491 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 2492 drv->perm_addr) < 0) { 2493 wpa_printf(MSG_DEBUG, 2494 "nl80211: Could not restore permanent MAC address"); 2495 } 2496 } 2497 2498 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { 2499 if (!drv->hostapd || !drv->start_mode_ap) 2500 wpa_driver_nl80211_set_mode(bss, 2501 NL80211_IFTYPE_STATION); 2502 nl80211_mgmt_unsubscribe(bss, "deinit"); 2503 } else { 2504 nl80211_mgmt_unsubscribe(bss, "deinit"); 2505 nl80211_del_p2pdev(bss); 2506 } 2507 2508 nl80211_destroy_bss(drv->first_bss); 2509 2510 os_free(drv->filter_ssids); 2511 2512 os_free(drv->auth_ie); 2513 2514 if (drv->in_interface_list) 2515 dl_list_del(&drv->list); 2516 2517 os_free(drv->extended_capa); 2518 os_free(drv->extended_capa_mask); 2519 for (i = 0; i < drv->num_iface_ext_capa; i++) { 2520 os_free(drv->iface_ext_capa[i].ext_capa); 2521 os_free(drv->iface_ext_capa[i].ext_capa_mask); 2522 } 2523 os_free(drv->first_bss); 2524 os_free(drv); 2525 } 2526 2527 2528 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) 2529 { 2530 switch (alg) { 2531 case WPA_ALG_WEP: 2532 if (key_len == 5) 2533 return WLAN_CIPHER_SUITE_WEP40; 2534 return WLAN_CIPHER_SUITE_WEP104; 2535 case WPA_ALG_TKIP: 2536 return WLAN_CIPHER_SUITE_TKIP; 2537 case WPA_ALG_CCMP: 2538 return WLAN_CIPHER_SUITE_CCMP; 2539 case WPA_ALG_GCMP: 2540 return WLAN_CIPHER_SUITE_GCMP; 2541 case WPA_ALG_CCMP_256: 2542 return WLAN_CIPHER_SUITE_CCMP_256; 2543 case WPA_ALG_GCMP_256: 2544 return WLAN_CIPHER_SUITE_GCMP_256; 2545 case WPA_ALG_IGTK: 2546 return WLAN_CIPHER_SUITE_AES_CMAC; 2547 case WPA_ALG_BIP_GMAC_128: 2548 return WLAN_CIPHER_SUITE_BIP_GMAC_128; 2549 case WPA_ALG_BIP_GMAC_256: 2550 return WLAN_CIPHER_SUITE_BIP_GMAC_256; 2551 case WPA_ALG_BIP_CMAC_256: 2552 return WLAN_CIPHER_SUITE_BIP_CMAC_256; 2553 case WPA_ALG_SMS4: 2554 return WLAN_CIPHER_SUITE_SMS4; 2555 case WPA_ALG_KRK: 2556 return WLAN_CIPHER_SUITE_KRK; 2557 case WPA_ALG_NONE: 2558 case WPA_ALG_PMK: 2559 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", 2560 alg); 2561 return 0; 2562 } 2563 2564 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", 2565 alg); 2566 return 0; 2567 } 2568 2569 2570 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) 2571 { 2572 switch (cipher) { 2573 case WPA_CIPHER_CCMP_256: 2574 return WLAN_CIPHER_SUITE_CCMP_256; 2575 case WPA_CIPHER_GCMP_256: 2576 return WLAN_CIPHER_SUITE_GCMP_256; 2577 case WPA_CIPHER_CCMP: 2578 return WLAN_CIPHER_SUITE_CCMP; 2579 case WPA_CIPHER_GCMP: 2580 return WLAN_CIPHER_SUITE_GCMP; 2581 case WPA_CIPHER_TKIP: 2582 return WLAN_CIPHER_SUITE_TKIP; 2583 case WPA_CIPHER_WEP104: 2584 return WLAN_CIPHER_SUITE_WEP104; 2585 case WPA_CIPHER_WEP40: 2586 return WLAN_CIPHER_SUITE_WEP40; 2587 case WPA_CIPHER_GTK_NOT_USED: 2588 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; 2589 } 2590 2591 return 0; 2592 } 2593 2594 2595 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], 2596 int max_suites) 2597 { 2598 int num_suites = 0; 2599 2600 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) 2601 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; 2602 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) 2603 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; 2604 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) 2605 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; 2606 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) 2607 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; 2608 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) 2609 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; 2610 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) 2611 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; 2612 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) 2613 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; 2614 2615 return num_suites; 2616 } 2617 2618 2619 #ifdef CONFIG_DRIVER_NL80211_QCA 2620 static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv, 2621 const u8 *key, size_t key_len) 2622 { 2623 struct nl_msg *msg; 2624 int ret; 2625 2626 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) 2627 return 0; 2628 2629 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 2630 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 2631 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 2632 QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) || 2633 nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) { 2634 nl80211_nlmsg_clear(msg); 2635 nlmsg_free(msg); 2636 return -1; 2637 } 2638 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1); 2639 if (ret) { 2640 wpa_printf(MSG_DEBUG, 2641 "nl80211: Key management set key failed: ret=%d (%s)", 2642 ret, strerror(-ret)); 2643 } 2644 2645 return ret; 2646 } 2647 #endif /* CONFIG_DRIVER_NL80211_QCA */ 2648 2649 2650 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, 2651 enum wpa_alg alg, const u8 *addr, 2652 int key_idx, int set_tx, 2653 const u8 *seq, size_t seq_len, 2654 const u8 *key, size_t key_len) 2655 { 2656 struct wpa_driver_nl80211_data *drv = bss->drv; 2657 int ifindex; 2658 struct nl_msg *msg = NULL; 2659 int ret; 2660 int tdls = 0; 2661 2662 /* Ignore for P2P Device */ 2663 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) 2664 return 0; 2665 2666 ifindex = if_nametoindex(ifname); 2667 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " 2668 "set_tx=%d seq_len=%lu key_len=%lu", 2669 __func__, ifindex, ifname, alg, addr, key_idx, set_tx, 2670 (unsigned long) seq_len, (unsigned long) key_len); 2671 #ifdef CONFIG_TDLS 2672 if (key_idx == -1) { 2673 key_idx = 0; 2674 tdls = 1; 2675 } 2676 #endif /* CONFIG_TDLS */ 2677 2678 #ifdef CONFIG_DRIVER_NL80211_QCA 2679 if (alg == WPA_ALG_PMK && 2680 (drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) { 2681 wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key", 2682 __func__); 2683 ret = issue_key_mgmt_set_key(drv, key, key_len); 2684 return ret; 2685 } 2686 #endif /* CONFIG_DRIVER_NL80211_QCA */ 2687 2688 if (alg == WPA_ALG_NONE) { 2689 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY); 2690 if (!msg) 2691 return -ENOBUFS; 2692 } else { 2693 u32 suite; 2694 2695 suite = wpa_alg_to_cipher_suite(alg, key_len); 2696 if (!suite) 2697 goto fail; 2698 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY); 2699 if (!msg || 2700 nla_put(msg, NL80211_ATTR_KEY_DATA, key_len, key) || 2701 nla_put_u32(msg, NL80211_ATTR_KEY_CIPHER, suite)) 2702 goto fail; 2703 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); 2704 } 2705 2706 if (seq && seq_len) { 2707 if (nla_put(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq)) 2708 goto fail; 2709 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); 2710 } 2711 2712 if (addr && !is_broadcast_ether_addr(addr)) { 2713 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); 2714 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) 2715 goto fail; 2716 2717 if (alg != WPA_ALG_WEP && key_idx && !set_tx) { 2718 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); 2719 if (nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, 2720 NL80211_KEYTYPE_GROUP)) 2721 goto fail; 2722 } 2723 } else if (addr && is_broadcast_ether_addr(addr)) { 2724 struct nlattr *types; 2725 2726 wpa_printf(MSG_DEBUG, " broadcast key"); 2727 2728 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 2729 if (!types || 2730 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST)) 2731 goto fail; 2732 nla_nest_end(msg, types); 2733 } 2734 if (nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) 2735 goto fail; 2736 2737 ret = send_and_recv_msgs(drv, msg, NULL, key ? (void *) -1 : NULL); 2738 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) 2739 ret = 0; 2740 if (ret) 2741 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", 2742 ret, strerror(-ret)); 2743 2744 /* 2745 * If we failed or don't need to set the default TX key (below), 2746 * we're done here. 2747 */ 2748 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) 2749 return ret; 2750 if (is_ap_interface(drv->nlmode) && addr && 2751 !is_broadcast_ether_addr(addr)) 2752 return ret; 2753 2754 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY); 2755 if (!msg || 2756 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx) || 2757 nla_put_flag(msg, (alg == WPA_ALG_IGTK || 2758 alg == WPA_ALG_BIP_GMAC_128 || 2759 alg == WPA_ALG_BIP_GMAC_256 || 2760 alg == WPA_ALG_BIP_CMAC_256) ? 2761 NL80211_ATTR_KEY_DEFAULT_MGMT : 2762 NL80211_ATTR_KEY_DEFAULT)) 2763 goto fail; 2764 if (addr && is_broadcast_ether_addr(addr)) { 2765 struct nlattr *types; 2766 2767 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 2768 if (!types || 2769 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST)) 2770 goto fail; 2771 nla_nest_end(msg, types); 2772 } else if (addr) { 2773 struct nlattr *types; 2774 2775 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); 2776 if (!types || 2777 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST)) 2778 goto fail; 2779 nla_nest_end(msg, types); 2780 } 2781 2782 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 2783 if (ret == -ENOENT) 2784 ret = 0; 2785 if (ret) 2786 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " 2787 "err=%d %s)", ret, strerror(-ret)); 2788 return ret; 2789 2790 fail: 2791 nl80211_nlmsg_clear(msg); 2792 nlmsg_free(msg); 2793 return -ENOBUFS; 2794 } 2795 2796 2797 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, 2798 int key_idx, int defkey, 2799 const u8 *seq, size_t seq_len, 2800 const u8 *key, size_t key_len) 2801 { 2802 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); 2803 u32 suite; 2804 2805 if (!key_attr) 2806 return -1; 2807 2808 suite = wpa_alg_to_cipher_suite(alg, key_len); 2809 if (!suite) 2810 return -1; 2811 2812 if (defkey && alg == WPA_ALG_IGTK) { 2813 if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT)) 2814 return -1; 2815 } else if (defkey) { 2816 if (nla_put_flag(msg, NL80211_KEY_DEFAULT)) 2817 return -1; 2818 } 2819 2820 if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) || 2821 nla_put_u32(msg, NL80211_KEY_CIPHER, suite) || 2822 (seq && seq_len && 2823 nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) || 2824 nla_put(msg, NL80211_KEY_DATA, key_len, key)) 2825 return -1; 2826 2827 nla_nest_end(msg, key_attr); 2828 2829 return 0; 2830 } 2831 2832 2833 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, 2834 struct nl_msg *msg) 2835 { 2836 int i, privacy = 0; 2837 struct nlattr *nl_keys, *nl_key; 2838 2839 for (i = 0; i < 4; i++) { 2840 if (!params->wep_key[i]) 2841 continue; 2842 privacy = 1; 2843 break; 2844 } 2845 if (params->wps == WPS_MODE_PRIVACY) 2846 privacy = 1; 2847 if (params->pairwise_suite && 2848 params->pairwise_suite != WPA_CIPHER_NONE) 2849 privacy = 1; 2850 2851 if (!privacy) 2852 return 0; 2853 2854 if (nla_put_flag(msg, NL80211_ATTR_PRIVACY)) 2855 return -ENOBUFS; 2856 2857 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); 2858 if (!nl_keys) 2859 return -ENOBUFS; 2860 2861 for (i = 0; i < 4; i++) { 2862 if (!params->wep_key[i]) 2863 continue; 2864 2865 nl_key = nla_nest_start(msg, i); 2866 if (!nl_key || 2867 nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i], 2868 params->wep_key[i]) || 2869 nla_put_u32(msg, NL80211_KEY_CIPHER, 2870 params->wep_key_len[i] == 5 ? 2871 WLAN_CIPHER_SUITE_WEP40 : 2872 WLAN_CIPHER_SUITE_WEP104) || 2873 nla_put_u8(msg, NL80211_KEY_IDX, i) || 2874 (i == params->wep_tx_keyidx && 2875 nla_put_flag(msg, NL80211_KEY_DEFAULT))) 2876 return -ENOBUFS; 2877 2878 nla_nest_end(msg, nl_key); 2879 } 2880 nla_nest_end(msg, nl_keys); 2881 2882 return 0; 2883 } 2884 2885 2886 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 2887 const u8 *addr, int cmd, u16 reason_code, 2888 int local_state_change) 2889 { 2890 int ret; 2891 struct nl_msg *msg; 2892 2893 if (!(msg = nl80211_drv_msg(drv, 0, cmd)) || 2894 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) || 2895 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || 2896 (local_state_change && 2897 nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) { 2898 nlmsg_free(msg); 2899 return -1; 2900 } 2901 2902 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 2903 if (ret) { 2904 wpa_dbg(drv->ctx, MSG_DEBUG, 2905 "nl80211: MLME command failed: reason=%u ret=%d (%s)", 2906 reason_code, ret, strerror(-ret)); 2907 } 2908 return ret; 2909 } 2910 2911 2912 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, 2913 int reason_code) 2914 { 2915 int ret; 2916 2917 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); 2918 nl80211_mark_disconnected(drv); 2919 /* Disconnect command doesn't need BSSID - it uses cached value */ 2920 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, 2921 reason_code, 0); 2922 /* 2923 * For locally generated disconnect, supplicant already generates a 2924 * DEAUTH event, so ignore the event from NL80211. 2925 */ 2926 drv->ignore_next_local_disconnect = ret == 0; 2927 2928 return ret; 2929 } 2930 2931 2932 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, 2933 const u8 *addr, int reason_code) 2934 { 2935 struct wpa_driver_nl80211_data *drv = bss->drv; 2936 int ret; 2937 2938 if (drv->nlmode == NL80211_IFTYPE_ADHOC) { 2939 nl80211_mark_disconnected(drv); 2940 return nl80211_leave_ibss(drv, 1); 2941 } 2942 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) 2943 return wpa_driver_nl80211_disconnect(drv, reason_code); 2944 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", 2945 __func__, MAC2STR(addr), reason_code); 2946 nl80211_mark_disconnected(drv); 2947 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, 2948 reason_code, 0); 2949 /* 2950 * For locally generated deauthenticate, supplicant already generates a 2951 * DEAUTH event, so ignore the event from NL80211. 2952 */ 2953 drv->ignore_next_local_deauth = ret == 0; 2954 return ret; 2955 } 2956 2957 2958 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, 2959 struct wpa_driver_auth_params *params) 2960 { 2961 int i; 2962 2963 drv->auth_freq = params->freq; 2964 drv->auth_alg = params->auth_alg; 2965 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; 2966 drv->auth_local_state_change = params->local_state_change; 2967 drv->auth_p2p = params->p2p; 2968 2969 if (params->bssid) 2970 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); 2971 else 2972 os_memset(drv->auth_bssid_, 0, ETH_ALEN); 2973 2974 if (params->ssid) { 2975 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); 2976 drv->auth_ssid_len = params->ssid_len; 2977 } else 2978 drv->auth_ssid_len = 0; 2979 2980 2981 os_free(drv->auth_ie); 2982 drv->auth_ie = NULL; 2983 drv->auth_ie_len = 0; 2984 if (params->ie) { 2985 drv->auth_ie = os_malloc(params->ie_len); 2986 if (drv->auth_ie) { 2987 os_memcpy(drv->auth_ie, params->ie, params->ie_len); 2988 drv->auth_ie_len = params->ie_len; 2989 } 2990 } 2991 2992 for (i = 0; i < 4; i++) { 2993 if (params->wep_key[i] && params->wep_key_len[i] && 2994 params->wep_key_len[i] <= 16) { 2995 os_memcpy(drv->auth_wep_key[i], params->wep_key[i], 2996 params->wep_key_len[i]); 2997 drv->auth_wep_key_len[i] = params->wep_key_len[i]; 2998 } else 2999 drv->auth_wep_key_len[i] = 0; 3000 } 3001 } 3002 3003 3004 static void nl80211_unmask_11b_rates(struct i802_bss *bss) 3005 { 3006 struct wpa_driver_nl80211_data *drv = bss->drv; 3007 3008 if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates) 3009 return; 3010 3011 /* 3012 * Looks like we failed to unmask 11b rates previously. This could 3013 * happen, e.g., if the interface was down at the point in time when a 3014 * P2P group was terminated. 3015 */ 3016 wpa_printf(MSG_DEBUG, 3017 "nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them", 3018 bss->ifname); 3019 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 3020 } 3021 3022 3023 static int wpa_driver_nl80211_authenticate( 3024 struct i802_bss *bss, struct wpa_driver_auth_params *params) 3025 { 3026 struct wpa_driver_nl80211_data *drv = bss->drv; 3027 int ret = -1, i; 3028 struct nl_msg *msg; 3029 enum nl80211_auth_type type; 3030 enum nl80211_iftype nlmode; 3031 int count = 0; 3032 int is_retry; 3033 3034 nl80211_unmask_11b_rates(bss); 3035 3036 is_retry = drv->retry_auth; 3037 drv->retry_auth = 0; 3038 drv->ignore_deauth_event = 0; 3039 3040 nl80211_mark_disconnected(drv); 3041 os_memset(drv->auth_bssid, 0, ETH_ALEN); 3042 if (params->bssid) 3043 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 3044 else 3045 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 3046 /* FIX: IBSS mode */ 3047 nlmode = params->p2p ? 3048 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 3049 if (drv->nlmode != nlmode && 3050 wpa_driver_nl80211_set_mode(bss, nlmode) < 0) 3051 return -1; 3052 3053 retry: 3054 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", 3055 drv->ifindex); 3056 3057 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE); 3058 if (!msg) 3059 goto fail; 3060 3061 for (i = 0; i < 4; i++) { 3062 if (!params->wep_key[i]) 3063 continue; 3064 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, 3065 NULL, i, 3066 i == params->wep_tx_keyidx, NULL, 0, 3067 params->wep_key[i], 3068 params->wep_key_len[i]); 3069 if (params->wep_tx_keyidx != i) 3070 continue; 3071 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, 3072 params->wep_key[i], params->wep_key_len[i])) 3073 goto fail; 3074 } 3075 3076 if (params->bssid) { 3077 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 3078 MAC2STR(params->bssid)); 3079 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) 3080 goto fail; 3081 } 3082 if (params->freq) { 3083 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); 3084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq)) 3085 goto fail; 3086 } 3087 if (params->ssid) { 3088 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 3089 params->ssid, params->ssid_len); 3090 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, 3091 params->ssid)) 3092 goto fail; 3093 } 3094 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); 3095 if (params->ie && 3096 nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie)) 3097 goto fail; 3098 if (params->sae_data) { 3099 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, 3100 params->sae_data_len); 3101 if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, 3102 params->sae_data)) 3103 goto fail; 3104 } 3105 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 3106 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 3107 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 3108 type = NL80211_AUTHTYPE_SHARED_KEY; 3109 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 3110 type = NL80211_AUTHTYPE_NETWORK_EAP; 3111 else if (params->auth_alg & WPA_AUTH_ALG_FT) 3112 type = NL80211_AUTHTYPE_FT; 3113 else if (params->auth_alg & WPA_AUTH_ALG_SAE) 3114 type = NL80211_AUTHTYPE_SAE; 3115 else 3116 goto fail; 3117 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 3118 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) 3119 goto fail; 3120 if (params->local_state_change) { 3121 wpa_printf(MSG_DEBUG, " * Local state change only"); 3122 if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE)) 3123 goto fail; 3124 } 3125 3126 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3127 msg = NULL; 3128 if (ret) { 3129 wpa_dbg(drv->ctx, MSG_DEBUG, 3130 "nl80211: MLME command failed (auth): ret=%d (%s)", 3131 ret, strerror(-ret)); 3132 count++; 3133 if (ret == -EALREADY && count == 1 && params->bssid && 3134 !params->local_state_change) { 3135 /* 3136 * mac80211 does not currently accept new 3137 * authentication if we are already authenticated. As a 3138 * workaround, force deauthentication and try again. 3139 */ 3140 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 3141 "after forced deauthentication"); 3142 drv->ignore_deauth_event = 1; 3143 wpa_driver_nl80211_deauthenticate( 3144 bss, params->bssid, 3145 WLAN_REASON_PREV_AUTH_NOT_VALID); 3146 nlmsg_free(msg); 3147 goto retry; 3148 } 3149 3150 if (ret == -ENOENT && params->freq && !is_retry) { 3151 /* 3152 * cfg80211 has likely expired the BSS entry even 3153 * though it was previously available in our internal 3154 * BSS table. To recover quickly, start a single 3155 * channel scan on the specified channel. 3156 */ 3157 struct wpa_driver_scan_params scan; 3158 int freqs[2]; 3159 3160 os_memset(&scan, 0, sizeof(scan)); 3161 scan.num_ssids = 1; 3162 if (params->ssid) { 3163 scan.ssids[0].ssid = params->ssid; 3164 scan.ssids[0].ssid_len = params->ssid_len; 3165 } 3166 freqs[0] = params->freq; 3167 freqs[1] = 0; 3168 scan.freqs = freqs; 3169 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 3170 "channel scan to refresh cfg80211 BSS " 3171 "entry"); 3172 ret = wpa_driver_nl80211_scan(bss, &scan); 3173 if (ret == 0) { 3174 nl80211_copy_auth_params(drv, params); 3175 drv->scan_for_auth = 1; 3176 } 3177 } else if (is_retry) { 3178 /* 3179 * Need to indicate this with an event since the return 3180 * value from the retry is not delivered to core code. 3181 */ 3182 union wpa_event_data event; 3183 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 3184 "failed"); 3185 os_memset(&event, 0, sizeof(event)); 3186 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 3187 ETH_ALEN); 3188 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 3189 &event); 3190 } 3191 } else { 3192 wpa_printf(MSG_DEBUG, 3193 "nl80211: Authentication request send successfully"); 3194 } 3195 3196 fail: 3197 nlmsg_free(msg); 3198 return ret; 3199 } 3200 3201 3202 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv) 3203 { 3204 struct wpa_driver_auth_params params; 3205 struct i802_bss *bss = drv->first_bss; 3206 int i; 3207 3208 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 3209 3210 os_memset(¶ms, 0, sizeof(params)); 3211 params.freq = drv->auth_freq; 3212 params.auth_alg = drv->auth_alg; 3213 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 3214 params.local_state_change = drv->auth_local_state_change; 3215 params.p2p = drv->auth_p2p; 3216 3217 if (!is_zero_ether_addr(drv->auth_bssid_)) 3218 params.bssid = drv->auth_bssid_; 3219 3220 if (drv->auth_ssid_len) { 3221 params.ssid = drv->auth_ssid; 3222 params.ssid_len = drv->auth_ssid_len; 3223 } 3224 3225 params.ie = drv->auth_ie; 3226 params.ie_len = drv->auth_ie_len; 3227 3228 for (i = 0; i < 4; i++) { 3229 if (drv->auth_wep_key_len[i]) { 3230 params.wep_key[i] = drv->auth_wep_key[i]; 3231 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 3232 } 3233 } 3234 3235 drv->retry_auth = 1; 3236 return wpa_driver_nl80211_authenticate(bss, ¶ms); 3237 } 3238 3239 3240 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 3241 const void *data, size_t len, 3242 int encrypt, int noack, 3243 unsigned int freq, int no_cck, 3244 int offchanok, unsigned int wait_time, 3245 const u16 *csa_offs, 3246 size_t csa_offs_len) 3247 { 3248 struct wpa_driver_nl80211_data *drv = bss->drv; 3249 u64 cookie; 3250 int res; 3251 3252 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { 3253 freq = nl80211_get_assoc_freq(drv); 3254 wpa_printf(MSG_DEBUG, 3255 "nl80211: send_frame - Use assoc_freq=%u for IBSS", 3256 freq); 3257 } 3258 if (freq == 0) { 3259 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 3260 bss->freq); 3261 freq = bss->freq; 3262 } 3263 3264 if (drv->use_monitor) { 3265 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor", 3266 freq, bss->freq); 3267 return nl80211_send_monitor(drv, data, len, encrypt, noack); 3268 } 3269 3270 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 3271 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 3272 &cookie, no_cck, noack, offchanok, 3273 csa_offs, csa_offs_len); 3274 if (res == 0 && !noack) { 3275 const struct ieee80211_mgmt *mgmt; 3276 u16 fc; 3277 3278 mgmt = (const struct ieee80211_mgmt *) data; 3279 fc = le_to_host16(mgmt->frame_control); 3280 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3281 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 3282 wpa_printf(MSG_MSGDUMP, 3283 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 3284 (long long unsigned int) 3285 drv->send_action_cookie, 3286 (long long unsigned int) cookie); 3287 drv->send_action_cookie = cookie; 3288 } 3289 } 3290 3291 return res; 3292 } 3293 3294 3295 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 3296 size_t data_len, int noack, 3297 unsigned int freq, int no_cck, 3298 int offchanok, 3299 unsigned int wait_time, 3300 const u16 *csa_offs, 3301 size_t csa_offs_len) 3302 { 3303 struct wpa_driver_nl80211_data *drv = bss->drv; 3304 struct ieee80211_mgmt *mgmt; 3305 int encrypt = 1; 3306 u16 fc; 3307 3308 mgmt = (struct ieee80211_mgmt *) data; 3309 fc = le_to_host16(mgmt->frame_control); 3310 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR 3311 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d", 3312 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time, 3313 fc, fc2str(fc), drv->nlmode); 3314 3315 if ((is_sta_interface(drv->nlmode) || 3316 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 3317 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3318 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 3319 /* 3320 * The use of last_mgmt_freq is a bit of a hack, 3321 * but it works due to the single-threaded nature 3322 * of wpa_supplicant. 3323 */ 3324 if (freq == 0) { 3325 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 3326 drv->last_mgmt_freq); 3327 freq = drv->last_mgmt_freq; 3328 } 3329 return nl80211_send_frame_cmd(bss, freq, 0, 3330 data, data_len, NULL, 1, noack, 3331 1, csa_offs, csa_offs_len); 3332 } 3333 3334 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 3335 if (freq == 0) { 3336 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 3337 bss->freq); 3338 freq = bss->freq; 3339 } 3340 return nl80211_send_frame_cmd(bss, freq, 3341 (int) freq == bss->freq ? 0 : 3342 wait_time, 3343 data, data_len, 3344 &drv->send_action_cookie, 3345 no_cck, noack, offchanok, 3346 csa_offs, csa_offs_len); 3347 } 3348 3349 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3350 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 3351 /* 3352 * Only one of the authentication frame types is encrypted. 3353 * In order for static WEP encryption to work properly (i.e., 3354 * to not encrypt the frame), we need to tell mac80211 about 3355 * the frames that must not be encrypted. 3356 */ 3357 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 3358 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 3359 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 3360 encrypt = 0; 3361 } 3362 3363 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 3364 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 3365 noack, freq, no_cck, offchanok, 3366 wait_time, csa_offs, 3367 csa_offs_len); 3368 } 3369 3370 3371 static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates) 3372 { 3373 u8 rates[NL80211_MAX_SUPP_RATES]; 3374 u8 rates_len = 0; 3375 int i; 3376 3377 if (!basic_rates) 3378 return 0; 3379 3380 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++) 3381 rates[rates_len++] = basic_rates[i] / 5; 3382 3383 return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 3384 } 3385 3386 3387 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 3388 int slot, int ht_opmode, int ap_isolate, 3389 const int *basic_rates) 3390 { 3391 struct wpa_driver_nl80211_data *drv = bss->drv; 3392 struct nl_msg *msg; 3393 3394 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) || 3395 (cts >= 0 && 3396 nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) || 3397 (preamble >= 0 && 3398 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) || 3399 (slot >= 0 && 3400 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) || 3401 (ht_opmode >= 0 && 3402 nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) || 3403 (ap_isolate >= 0 && 3404 nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) || 3405 nl80211_put_basic_rates(msg, basic_rates)) { 3406 nlmsg_free(msg); 3407 return -ENOBUFS; 3408 } 3409 3410 return send_and_recv_msgs(drv, msg, NULL, NULL); 3411 } 3412 3413 3414 static int wpa_driver_nl80211_set_acl(void *priv, 3415 struct hostapd_acl_params *params) 3416 { 3417 struct i802_bss *bss = priv; 3418 struct wpa_driver_nl80211_data *drv = bss->drv; 3419 struct nl_msg *msg; 3420 struct nl_msg *acl; 3421 unsigned int i; 3422 int ret; 3423 3424 if (!(drv->capa.max_acl_mac_addrs)) 3425 return -ENOTSUP; 3426 3427 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 3428 return -ENOTSUP; 3429 3430 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 3431 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 3432 3433 acl = nlmsg_alloc(); 3434 if (!acl) 3435 return -ENOMEM; 3436 for (i = 0; i < params->num_mac_acl; i++) { 3437 if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) { 3438 nlmsg_free(acl); 3439 return -ENOMEM; 3440 } 3441 } 3442 3443 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) || 3444 nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 3445 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 3446 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) || 3447 nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) { 3448 nlmsg_free(msg); 3449 nlmsg_free(acl); 3450 return -ENOMEM; 3451 } 3452 nlmsg_free(acl); 3453 3454 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3455 if (ret) { 3456 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 3457 ret, strerror(-ret)); 3458 } 3459 3460 return ret; 3461 } 3462 3463 3464 static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int) 3465 { 3466 if (beacon_int > 0) { 3467 wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int); 3468 return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL, 3469 beacon_int); 3470 } 3471 3472 return 0; 3473 } 3474 3475 3476 static int nl80211_put_dtim_period(struct nl_msg *msg, int dtim_period) 3477 { 3478 if (dtim_period > 0) { 3479 wpa_printf(MSG_DEBUG, " * dtim_period=%d", dtim_period); 3480 return nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period); 3481 } 3482 3483 return 0; 3484 } 3485 3486 3487 #ifdef CONFIG_MESH 3488 static int nl80211_set_mesh_config(void *priv, 3489 struct wpa_driver_mesh_bss_params *params) 3490 { 3491 struct i802_bss *bss = priv; 3492 struct wpa_driver_nl80211_data *drv = bss->drv; 3493 struct nl_msg *msg; 3494 int ret; 3495 3496 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG); 3497 if (!msg) 3498 return -1; 3499 3500 ret = nl80211_put_mesh_config(msg, params); 3501 if (ret < 0) { 3502 nlmsg_free(msg); 3503 return ret; 3504 } 3505 3506 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3507 if (ret) { 3508 wpa_printf(MSG_ERROR, 3509 "nl80211: Mesh config set failed: %d (%s)", 3510 ret, strerror(-ret)); 3511 return ret; 3512 } 3513 return 0; 3514 } 3515 #endif /* CONFIG_MESH */ 3516 3517 3518 static int wpa_driver_nl80211_set_ap(void *priv, 3519 struct wpa_driver_ap_params *params) 3520 { 3521 struct i802_bss *bss = priv; 3522 struct wpa_driver_nl80211_data *drv = bss->drv; 3523 struct nl_msg *msg; 3524 u8 cmd = NL80211_CMD_NEW_BEACON; 3525 int ret; 3526 int beacon_set; 3527 int num_suites; 3528 int smps_mode; 3529 u32 suites[10], suite; 3530 u32 ver; 3531 #ifdef CONFIG_MESH 3532 struct wpa_driver_mesh_bss_params mesh_params; 3533 #endif /* CONFIG_MESH */ 3534 3535 beacon_set = params->reenable ? 0 : bss->beacon_set; 3536 3537 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 3538 beacon_set); 3539 if (beacon_set) 3540 cmd = NL80211_CMD_SET_BEACON; 3541 3542 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 3543 params->head, params->head_len); 3544 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 3545 params->tail, params->tail_len); 3546 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex); 3547 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 3548 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 3549 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 3550 params->ssid, params->ssid_len); 3551 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || 3552 nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, 3553 params->head) || 3554 nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, 3555 params->tail) || 3556 nl80211_put_beacon_int(msg, params->beacon_int) || 3557 nl80211_put_dtim_period(msg, params->dtim_period) || 3558 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) 3559 goto fail; 3560 if (params->proberesp && params->proberesp_len) { 3561 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 3562 params->proberesp, params->proberesp_len); 3563 if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 3564 params->proberesp)) 3565 goto fail; 3566 } 3567 switch (params->hide_ssid) { 3568 case NO_SSID_HIDING: 3569 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 3570 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3571 NL80211_HIDDEN_SSID_NOT_IN_USE)) 3572 goto fail; 3573 break; 3574 case HIDDEN_SSID_ZERO_LEN: 3575 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 3576 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3577 NL80211_HIDDEN_SSID_ZERO_LEN)) 3578 goto fail; 3579 break; 3580 case HIDDEN_SSID_ZERO_CONTENTS: 3581 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 3582 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3583 NL80211_HIDDEN_SSID_ZERO_CONTENTS)) 3584 goto fail; 3585 break; 3586 } 3587 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 3588 if (params->privacy && 3589 nla_put_flag(msg, NL80211_ATTR_PRIVACY)) 3590 goto fail; 3591 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 3592 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 3593 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 3594 /* Leave out the attribute */ 3595 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) { 3596 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, 3597 NL80211_AUTHTYPE_SHARED_KEY)) 3598 goto fail; 3599 } else { 3600 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, 3601 NL80211_AUTHTYPE_OPEN_SYSTEM)) 3602 goto fail; 3603 } 3604 3605 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 3606 ver = 0; 3607 if (params->wpa_version & WPA_PROTO_WPA) 3608 ver |= NL80211_WPA_VERSION_1; 3609 if (params->wpa_version & WPA_PROTO_RSN) 3610 ver |= NL80211_WPA_VERSION_2; 3611 if (ver && 3612 nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) 3613 goto fail; 3614 3615 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 3616 params->key_mgmt_suites); 3617 num_suites = 0; 3618 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 3619 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 3620 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 3621 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 3622 if (num_suites && 3623 nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32), 3624 suites)) 3625 goto fail; 3626 3627 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA && 3628 (!params->pairwise_ciphers || 3629 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) && 3630 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || 3631 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) 3632 goto fail; 3633 3634 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 3635 params->pairwise_ciphers); 3636 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 3637 suites, ARRAY_SIZE(suites)); 3638 if (num_suites && 3639 nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 3640 num_suites * sizeof(u32), suites)) 3641 goto fail; 3642 3643 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 3644 params->group_cipher); 3645 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 3646 if (suite && 3647 nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite)) 3648 goto fail; 3649 3650 if (params->ht_opmode != -1) { 3651 switch (params->smps_mode) { 3652 case HT_CAP_INFO_SMPS_DYNAMIC: 3653 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - dynamic"); 3654 smps_mode = NL80211_SMPS_DYNAMIC; 3655 break; 3656 case HT_CAP_INFO_SMPS_STATIC: 3657 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - static"); 3658 smps_mode = NL80211_SMPS_STATIC; 3659 break; 3660 default: 3661 /* invalid - fallback to smps off */ 3662 case HT_CAP_INFO_SMPS_DISABLED: 3663 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - off"); 3664 smps_mode = NL80211_SMPS_OFF; 3665 break; 3666 } 3667 if (nla_put_u32(msg, NL80211_ATTR_SMPS_MODE, smps_mode)) 3668 goto fail; 3669 } 3670 3671 if (params->beacon_ies) { 3672 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 3673 params->beacon_ies); 3674 if (nla_put(msg, NL80211_ATTR_IE, 3675 wpabuf_len(params->beacon_ies), 3676 wpabuf_head(params->beacon_ies))) 3677 goto fail; 3678 } 3679 if (params->proberesp_ies) { 3680 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 3681 params->proberesp_ies); 3682 if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, 3683 wpabuf_len(params->proberesp_ies), 3684 wpabuf_head(params->proberesp_ies))) 3685 goto fail; 3686 } 3687 if (params->assocresp_ies) { 3688 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 3689 params->assocresp_ies); 3690 if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, 3691 wpabuf_len(params->assocresp_ies), 3692 wpabuf_head(params->assocresp_ies))) 3693 goto fail; 3694 } 3695 3696 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 3697 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 3698 params->ap_max_inactivity); 3699 if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 3700 params->ap_max_inactivity)) 3701 goto fail; 3702 } 3703 3704 #ifdef CONFIG_P2P 3705 if (params->p2p_go_ctwindow > 0) { 3706 if (drv->p2p_go_ctwindow_supported) { 3707 wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d", 3708 params->p2p_go_ctwindow); 3709 if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW, 3710 params->p2p_go_ctwindow)) 3711 goto fail; 3712 } else { 3713 wpa_printf(MSG_INFO, 3714 "nl80211: Driver does not support CTWindow configuration - ignore this parameter"); 3715 } 3716 } 3717 #endif /* CONFIG_P2P */ 3718 3719 if (params->pbss) { 3720 wpa_printf(MSG_DEBUG, "nl80211: PBSS"); 3721 if (nla_put_flag(msg, NL80211_ATTR_PBSS)) 3722 goto fail; 3723 } 3724 3725 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3726 if (ret) { 3727 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 3728 ret, strerror(-ret)); 3729 } else { 3730 bss->beacon_set = 1; 3731 nl80211_set_bss(bss, params->cts_protect, params->preamble, 3732 params->short_slot_time, params->ht_opmode, 3733 params->isolate, params->basic_rates); 3734 if (beacon_set && params->freq && 3735 params->freq->bandwidth != bss->bandwidth) { 3736 wpa_printf(MSG_DEBUG, 3737 "nl80211: Update BSS %s bandwidth: %d -> %d", 3738 bss->ifname, bss->bandwidth, 3739 params->freq->bandwidth); 3740 ret = nl80211_set_channel(bss, params->freq, 1); 3741 if (ret) { 3742 wpa_printf(MSG_DEBUG, 3743 "nl80211: Frequency set failed: %d (%s)", 3744 ret, strerror(-ret)); 3745 } else { 3746 wpa_printf(MSG_DEBUG, 3747 "nl80211: Frequency set succeeded for ht2040 coex"); 3748 bss->bandwidth = params->freq->bandwidth; 3749 } 3750 } else if (!beacon_set && params->freq) { 3751 /* 3752 * cfg80211 updates the driver on frequence change in AP 3753 * mode only at the point when beaconing is started, so 3754 * set the initial value here. 3755 */ 3756 bss->bandwidth = params->freq->bandwidth; 3757 } 3758 } 3759 3760 #ifdef CONFIG_MESH 3761 if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) { 3762 os_memset(&mesh_params, 0, sizeof(mesh_params)); 3763 mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE; 3764 mesh_params.ht_opmode = params->ht_opmode; 3765 ret = nl80211_set_mesh_config(priv, &mesh_params); 3766 if (ret < 0) 3767 return ret; 3768 } 3769 #endif /* CONFIG_MESH */ 3770 3771 return ret; 3772 fail: 3773 nlmsg_free(msg); 3774 return -ENOBUFS; 3775 } 3776 3777 3778 static int nl80211_put_freq_params(struct nl_msg *msg, 3779 const struct hostapd_freq_params *freq) 3780 { 3781 wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq); 3782 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq)) 3783 return -ENOBUFS; 3784 3785 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled); 3786 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled); 3787 3788 if (freq->vht_enabled) { 3789 enum nl80211_chan_width cw; 3790 3791 wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth); 3792 switch (freq->bandwidth) { 3793 case 20: 3794 cw = NL80211_CHAN_WIDTH_20; 3795 break; 3796 case 40: 3797 cw = NL80211_CHAN_WIDTH_40; 3798 break; 3799 case 80: 3800 if (freq->center_freq2) 3801 cw = NL80211_CHAN_WIDTH_80P80; 3802 else 3803 cw = NL80211_CHAN_WIDTH_80; 3804 break; 3805 case 160: 3806 cw = NL80211_CHAN_WIDTH_160; 3807 break; 3808 default: 3809 return -EINVAL; 3810 } 3811 3812 wpa_printf(MSG_DEBUG, " * channel_width=%d", cw); 3813 wpa_printf(MSG_DEBUG, " * center_freq1=%d", 3814 freq->center_freq1); 3815 wpa_printf(MSG_DEBUG, " * center_freq2=%d", 3816 freq->center_freq2); 3817 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) || 3818 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, 3819 freq->center_freq1) || 3820 (freq->center_freq2 && 3821 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, 3822 freq->center_freq2))) 3823 return -ENOBUFS; 3824 } else if (freq->ht_enabled) { 3825 enum nl80211_channel_type ct; 3826 3827 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d", 3828 freq->sec_channel_offset); 3829 switch (freq->sec_channel_offset) { 3830 case -1: 3831 ct = NL80211_CHAN_HT40MINUS; 3832 break; 3833 case 1: 3834 ct = NL80211_CHAN_HT40PLUS; 3835 break; 3836 default: 3837 ct = NL80211_CHAN_HT20; 3838 break; 3839 } 3840 3841 wpa_printf(MSG_DEBUG, " * channel_type=%d", ct); 3842 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct)) 3843 return -ENOBUFS; 3844 } else { 3845 wpa_printf(MSG_DEBUG, " * channel_type=%d", 3846 NL80211_CHAN_NO_HT); 3847 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 3848 NL80211_CHAN_NO_HT)) 3849 return -ENOBUFS; 3850 } 3851 return 0; 3852 } 3853 3854 3855 static int nl80211_set_channel(struct i802_bss *bss, 3856 struct hostapd_freq_params *freq, int set_chan) 3857 { 3858 struct wpa_driver_nl80211_data *drv = bss->drv; 3859 struct nl_msg *msg; 3860 int ret; 3861 3862 wpa_printf(MSG_DEBUG, 3863 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 3864 freq->freq, freq->ht_enabled, freq->vht_enabled, 3865 freq->bandwidth, freq->center_freq1, freq->center_freq2); 3866 3867 msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL : 3868 NL80211_CMD_SET_WIPHY); 3869 if (!msg || nl80211_put_freq_params(msg, freq) < 0) { 3870 nlmsg_free(msg); 3871 return -1; 3872 } 3873 3874 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3875 if (ret == 0) { 3876 bss->freq = freq->freq; 3877 return 0; 3878 } 3879 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 3880 "%d (%s)", freq->freq, ret, strerror(-ret)); 3881 return -1; 3882 } 3883 3884 3885 static u32 sta_flags_nl80211(int flags) 3886 { 3887 u32 f = 0; 3888 3889 if (flags & WPA_STA_AUTHORIZED) 3890 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 3891 if (flags & WPA_STA_WMM) 3892 f |= BIT(NL80211_STA_FLAG_WME); 3893 if (flags & WPA_STA_SHORT_PREAMBLE) 3894 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 3895 if (flags & WPA_STA_MFP) 3896 f |= BIT(NL80211_STA_FLAG_MFP); 3897 if (flags & WPA_STA_TDLS_PEER) 3898 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 3899 if (flags & WPA_STA_AUTHENTICATED) 3900 f |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 3901 if (flags & WPA_STA_ASSOCIATED) 3902 f |= BIT(NL80211_STA_FLAG_ASSOCIATED); 3903 3904 return f; 3905 } 3906 3907 3908 #ifdef CONFIG_MESH 3909 static u32 sta_plink_state_nl80211(enum mesh_plink_state state) 3910 { 3911 switch (state) { 3912 case PLINK_IDLE: 3913 return NL80211_PLINK_LISTEN; 3914 case PLINK_OPN_SNT: 3915 return NL80211_PLINK_OPN_SNT; 3916 case PLINK_OPN_RCVD: 3917 return NL80211_PLINK_OPN_RCVD; 3918 case PLINK_CNF_RCVD: 3919 return NL80211_PLINK_CNF_RCVD; 3920 case PLINK_ESTAB: 3921 return NL80211_PLINK_ESTAB; 3922 case PLINK_HOLDING: 3923 return NL80211_PLINK_HOLDING; 3924 case PLINK_BLOCKED: 3925 return NL80211_PLINK_BLOCKED; 3926 default: 3927 wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d", 3928 state); 3929 } 3930 return -1; 3931 } 3932 #endif /* CONFIG_MESH */ 3933 3934 3935 static int wpa_driver_nl80211_sta_add(void *priv, 3936 struct hostapd_sta_add_params *params) 3937 { 3938 struct i802_bss *bss = priv; 3939 struct wpa_driver_nl80211_data *drv = bss->drv; 3940 struct nl_msg *msg; 3941 struct nl80211_sta_flag_update upd; 3942 int ret = -ENOBUFS; 3943 3944 if ((params->flags & WPA_STA_TDLS_PEER) && 3945 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 3946 return -EOPNOTSUPP; 3947 3948 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 3949 params->set ? "Set" : "Add", MAC2STR(params->addr)); 3950 msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION : 3951 NL80211_CMD_NEW_STATION); 3952 if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr)) 3953 goto fail; 3954 3955 /* 3956 * Set the below properties only in one of the following cases: 3957 * 1. New station is added, already associated. 3958 * 2. Set WPA_STA_TDLS_PEER station. 3959 * 3. Set an already added unassociated station, if driver supports 3960 * full AP client state. (Set these properties after station became 3961 * associated will be rejected by the driver). 3962 */ 3963 if (!params->set || (params->flags & WPA_STA_TDLS_PEER) || 3964 (params->set && FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && 3965 (params->flags & WPA_STA_ASSOCIATED))) { 3966 wpa_hexdump(MSG_DEBUG, " * supported rates", 3967 params->supp_rates, params->supp_rates_len); 3968 wpa_printf(MSG_DEBUG, " * capability=0x%x", 3969 params->capability); 3970 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES, 3971 params->supp_rates_len, params->supp_rates) || 3972 nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY, 3973 params->capability)) 3974 goto fail; 3975 3976 if (params->ht_capabilities) { 3977 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 3978 (u8 *) params->ht_capabilities, 3979 sizeof(*params->ht_capabilities)); 3980 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, 3981 sizeof(*params->ht_capabilities), 3982 params->ht_capabilities)) 3983 goto fail; 3984 } 3985 3986 if (params->vht_capabilities) { 3987 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 3988 (u8 *) params->vht_capabilities, 3989 sizeof(*params->vht_capabilities)); 3990 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, 3991 sizeof(*params->vht_capabilities), 3992 params->vht_capabilities)) 3993 goto fail; 3994 } 3995 3996 if (params->ext_capab) { 3997 wpa_hexdump(MSG_DEBUG, " * ext_capab", 3998 params->ext_capab, params->ext_capab_len); 3999 if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 4000 params->ext_capab_len, params->ext_capab)) 4001 goto fail; 4002 } 4003 4004 if (is_ap_interface(drv->nlmode) && 4005 nla_put_u8(msg, NL80211_ATTR_STA_SUPPORT_P2P_PS, 4006 params->support_p2p_ps ? 4007 NL80211_P2P_PS_SUPPORTED : 4008 NL80211_P2P_PS_UNSUPPORTED)) 4009 goto fail; 4010 } 4011 if (!params->set) { 4012 if (params->aid) { 4013 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 4014 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid)) 4015 goto fail; 4016 } else { 4017 /* 4018 * cfg80211 validates that AID is non-zero, so we have 4019 * to make this a non-zero value for the TDLS case where 4020 * a dummy STA entry is used for now and for a station 4021 * that is still not associated. 4022 */ 4023 wpa_printf(MSG_DEBUG, " * aid=1 (%s workaround)", 4024 (params->flags & WPA_STA_TDLS_PEER) ? 4025 "TDLS" : "UNASSOC_STA"); 4026 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1)) 4027 goto fail; 4028 } 4029 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 4030 params->listen_interval); 4031 if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 4032 params->listen_interval)) 4033 goto fail; 4034 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 4035 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 4036 if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid)) 4037 goto fail; 4038 } else if (FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && 4039 (params->flags & WPA_STA_ASSOCIATED)) { 4040 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 4041 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 4042 params->listen_interval); 4043 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid) || 4044 nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 4045 params->listen_interval)) 4046 goto fail; 4047 } 4048 4049 if (params->vht_opmode_enabled) { 4050 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 4051 if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF, 4052 params->vht_opmode)) 4053 goto fail; 4054 } 4055 4056 if (params->supp_channels) { 4057 wpa_hexdump(MSG_DEBUG, " * supported channels", 4058 params->supp_channels, params->supp_channels_len); 4059 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 4060 params->supp_channels_len, params->supp_channels)) 4061 goto fail; 4062 } 4063 4064 if (params->supp_oper_classes) { 4065 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 4066 params->supp_oper_classes, 4067 params->supp_oper_classes_len); 4068 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 4069 params->supp_oper_classes_len, 4070 params->supp_oper_classes)) 4071 goto fail; 4072 } 4073 4074 os_memset(&upd, 0, sizeof(upd)); 4075 upd.set = sta_flags_nl80211(params->flags); 4076 upd.mask = upd.set | sta_flags_nl80211(params->flags_mask); 4077 4078 /* 4079 * If the driver doesn't support full AP client state, ignore ASSOC/AUTH 4080 * flags, as nl80211 driver moves a new station, by default, into 4081 * associated state. 4082 * 4083 * On the other hand, if the driver supports that feature and the 4084 * station is added in unauthenticated state, set the 4085 * authenticated/associated bits in the mask to prevent moving this 4086 * station to associated state before it is actually associated. 4087 * 4088 * This is irrelevant for mesh mode where the station is added to the 4089 * driver as authenticated already, and ASSOCIATED isn't part of the 4090 * nl80211 API. 4091 */ 4092 if (!is_mesh_interface(drv->nlmode)) { 4093 if (!FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) { 4094 wpa_printf(MSG_DEBUG, 4095 "nl80211: Ignore ASSOC/AUTH flags since driver doesn't support full AP client state"); 4096 upd.mask &= ~(BIT(NL80211_STA_FLAG_ASSOCIATED) | 4097 BIT(NL80211_STA_FLAG_AUTHENTICATED)); 4098 } else if (!params->set && 4099 !(params->flags & WPA_STA_TDLS_PEER)) { 4100 if (!(params->flags & WPA_STA_AUTHENTICATED)) 4101 upd.mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 4102 if (!(params->flags & WPA_STA_ASSOCIATED)) 4103 upd.mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 4104 } 4105 #ifdef CONFIG_MESH 4106 } else { 4107 if (params->plink_state == PLINK_ESTAB && params->peer_aid) { 4108 ret = nla_put_u16(msg, NL80211_ATTR_MESH_PEER_AID, 4109 params->peer_aid); 4110 if (ret) 4111 goto fail; 4112 } 4113 #endif /* CONFIG_MESH */ 4114 } 4115 4116 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 4117 upd.set, upd.mask); 4118 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) 4119 goto fail; 4120 4121 #ifdef CONFIG_MESH 4122 if (params->plink_state && 4123 nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE, 4124 sta_plink_state_nl80211(params->plink_state))) 4125 goto fail; 4126 #endif /* CONFIG_MESH */ 4127 4128 if (params->flags & WPA_STA_WMM) { 4129 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 4130 4131 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 4132 if (!wme || 4133 nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, 4134 params->qosinfo & WMM_QOSINFO_STA_AC_MASK) || 4135 nla_put_u8(msg, NL80211_STA_WME_MAX_SP, 4136 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 4137 WMM_QOSINFO_STA_SP_MASK)) 4138 goto fail; 4139 nla_nest_end(msg, wme); 4140 } 4141 4142 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4143 msg = NULL; 4144 if (ret) 4145 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 4146 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 4147 strerror(-ret)); 4148 if (ret == -EEXIST) 4149 ret = 0; 4150 fail: 4151 nlmsg_free(msg); 4152 return ret; 4153 } 4154 4155 4156 static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr) 4157 { 4158 #ifdef CONFIG_LIBNL3_ROUTE 4159 struct wpa_driver_nl80211_data *drv = bss->drv; 4160 struct rtnl_neigh *rn; 4161 struct nl_addr *nl_addr; 4162 int err; 4163 4164 rn = rtnl_neigh_alloc(); 4165 if (!rn) 4166 return; 4167 4168 rtnl_neigh_set_family(rn, AF_BRIDGE); 4169 rtnl_neigh_set_ifindex(rn, bss->ifindex); 4170 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN); 4171 if (!nl_addr) { 4172 rtnl_neigh_put(rn); 4173 return; 4174 } 4175 rtnl_neigh_set_lladdr(rn, nl_addr); 4176 4177 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); 4178 if (err < 0) { 4179 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for " 4180 MACSTR " ifindex=%d failed: %s", MAC2STR(addr), 4181 bss->ifindex, nl_geterror(err)); 4182 } else { 4183 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for " 4184 MACSTR, MAC2STR(addr)); 4185 } 4186 4187 nl_addr_put(nl_addr); 4188 rtnl_neigh_put(rn); 4189 #endif /* CONFIG_LIBNL3_ROUTE */ 4190 } 4191 4192 4193 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr, 4194 int deauth, u16 reason_code) 4195 { 4196 struct wpa_driver_nl80211_data *drv = bss->drv; 4197 struct nl_msg *msg; 4198 int ret; 4199 4200 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) || 4201 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 4202 (deauth == 0 && 4203 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4204 WLAN_FC_STYPE_DISASSOC)) || 4205 (deauth == 1 && 4206 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4207 WLAN_FC_STYPE_DEAUTH)) || 4208 (reason_code && 4209 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) { 4210 nlmsg_free(msg); 4211 return -ENOBUFS; 4212 } 4213 4214 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4215 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 4216 " --> %d (%s)", 4217 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 4218 4219 if (drv->rtnl_sk) 4220 rtnl_neigh_delete_fdb_entry(bss, addr); 4221 4222 if (ret == -ENOENT) 4223 return 0; 4224 return ret; 4225 } 4226 4227 4228 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx) 4229 { 4230 struct nl_msg *msg; 4231 struct wpa_driver_nl80211_data *drv2; 4232 4233 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 4234 4235 /* stop listening for EAPOL on this interface */ 4236 dl_list_for_each(drv2, &drv->global->interfaces, 4237 struct wpa_driver_nl80211_data, list) 4238 { 4239 del_ifidx(drv2, ifidx, IFIDX_ANY); 4240 /* Remove all bridges learned for this iface */ 4241 del_ifidx(drv2, IFIDX_ANY, ifidx); 4242 } 4243 4244 msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE); 4245 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 4246 return; 4247 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 4248 } 4249 4250 4251 const char * nl80211_iftype_str(enum nl80211_iftype mode) 4252 { 4253 switch (mode) { 4254 case NL80211_IFTYPE_ADHOC: 4255 return "ADHOC"; 4256 case NL80211_IFTYPE_STATION: 4257 return "STATION"; 4258 case NL80211_IFTYPE_AP: 4259 return "AP"; 4260 case NL80211_IFTYPE_AP_VLAN: 4261 return "AP_VLAN"; 4262 case NL80211_IFTYPE_WDS: 4263 return "WDS"; 4264 case NL80211_IFTYPE_MONITOR: 4265 return "MONITOR"; 4266 case NL80211_IFTYPE_MESH_POINT: 4267 return "MESH_POINT"; 4268 case NL80211_IFTYPE_P2P_CLIENT: 4269 return "P2P_CLIENT"; 4270 case NL80211_IFTYPE_P2P_GO: 4271 return "P2P_GO"; 4272 case NL80211_IFTYPE_P2P_DEVICE: 4273 return "P2P_DEVICE"; 4274 default: 4275 return "unknown"; 4276 } 4277 } 4278 4279 4280 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 4281 const char *ifname, 4282 enum nl80211_iftype iftype, 4283 const u8 *addr, int wds, 4284 int (*handler)(struct nl_msg *, void *), 4285 void *arg) 4286 { 4287 struct nl_msg *msg; 4288 int ifidx; 4289 int ret = -ENOBUFS; 4290 4291 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 4292 iftype, nl80211_iftype_str(iftype)); 4293 4294 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE); 4295 if (!msg || 4296 nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) || 4297 nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype)) 4298 goto fail; 4299 4300 if (iftype == NL80211_IFTYPE_MONITOR) { 4301 struct nlattr *flags; 4302 4303 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 4304 if (!flags || 4305 nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES)) 4306 goto fail; 4307 4308 nla_nest_end(msg, flags); 4309 } else if (wds) { 4310 if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds)) 4311 goto fail; 4312 } 4313 4314 /* 4315 * Tell cfg80211 that the interface belongs to the socket that created 4316 * it, and the interface should be deleted when the socket is closed. 4317 */ 4318 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER)) 4319 goto fail; 4320 4321 ret = send_and_recv_msgs(drv, msg, handler, arg); 4322 msg = NULL; 4323 if (ret) { 4324 fail: 4325 nlmsg_free(msg); 4326 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 4327 ifname, ret, strerror(-ret)); 4328 return ret; 4329 } 4330 4331 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 4332 return 0; 4333 4334 ifidx = if_nametoindex(ifname); 4335 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 4336 ifname, ifidx); 4337 4338 if (ifidx <= 0) 4339 return -1; 4340 4341 /* 4342 * Some virtual interfaces need to process EAPOL packets and events on 4343 * the parent interface. This is used mainly with hostapd. 4344 */ 4345 if (drv->hostapd || 4346 iftype == NL80211_IFTYPE_AP_VLAN || 4347 iftype == NL80211_IFTYPE_WDS || 4348 iftype == NL80211_IFTYPE_MONITOR) { 4349 /* start listening for EAPOL on this interface */ 4350 add_ifidx(drv, ifidx, IFIDX_ANY); 4351 } 4352 4353 if (addr && iftype != NL80211_IFTYPE_MONITOR && 4354 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 4355 nl80211_remove_iface(drv, ifidx); 4356 return -1; 4357 } 4358 4359 return ifidx; 4360 } 4361 4362 4363 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 4364 const char *ifname, enum nl80211_iftype iftype, 4365 const u8 *addr, int wds, 4366 int (*handler)(struct nl_msg *, void *), 4367 void *arg, int use_existing) 4368 { 4369 int ret; 4370 4371 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 4372 arg); 4373 4374 /* if error occurred and interface exists already */ 4375 if (ret == -ENFILE && if_nametoindex(ifname)) { 4376 if (use_existing) { 4377 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 4378 ifname); 4379 if (addr && iftype != NL80211_IFTYPE_MONITOR && 4380 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 4381 addr) < 0 && 4382 (linux_set_iface_flags(drv->global->ioctl_sock, 4383 ifname, 0) < 0 || 4384 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 4385 addr) < 0 || 4386 linux_set_iface_flags(drv->global->ioctl_sock, 4387 ifname, 1) < 0)) 4388 return -1; 4389 return -ENFILE; 4390 } 4391 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 4392 4393 /* Try to remove the interface that was already there. */ 4394 nl80211_remove_iface(drv, if_nametoindex(ifname)); 4395 4396 /* Try to create the interface again */ 4397 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 4398 wds, handler, arg); 4399 } 4400 4401 if (ret >= 0 && is_p2p_net_interface(iftype)) { 4402 wpa_printf(MSG_DEBUG, 4403 "nl80211: Interface %s created for P2P - disable 11b rates", 4404 ifname); 4405 nl80211_disable_11b_rates(drv, ret, 1); 4406 } 4407 4408 return ret; 4409 } 4410 4411 4412 static int nl80211_setup_ap(struct i802_bss *bss) 4413 { 4414 struct wpa_driver_nl80211_data *drv = bss->drv; 4415 4416 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 4417 bss->ifname, drv->device_ap_sme, drv->use_monitor); 4418 4419 /* 4420 * Disable Probe Request reporting unless we need it in this way for 4421 * devices that include the AP SME, in the other case (unless using 4422 * monitor iface) we'll get it through the nl_mgmt socket instead. 4423 */ 4424 if (!drv->device_ap_sme) 4425 wpa_driver_nl80211_probe_req_report(bss, 0); 4426 4427 if (!drv->device_ap_sme && !drv->use_monitor) 4428 if (nl80211_mgmt_subscribe_ap(bss)) 4429 return -1; 4430 4431 if (drv->device_ap_sme && !drv->use_monitor) 4432 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 4433 wpa_printf(MSG_DEBUG, 4434 "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it"); 4435 4436 if (!drv->device_ap_sme && drv->use_monitor && 4437 nl80211_create_monitor_interface(drv) && 4438 !drv->device_ap_sme) 4439 return -1; 4440 4441 if (drv->device_ap_sme && 4442 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 4443 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 4444 "Probe Request frame reporting in AP mode"); 4445 /* Try to survive without this */ 4446 } 4447 4448 return 0; 4449 } 4450 4451 4452 static void nl80211_teardown_ap(struct i802_bss *bss) 4453 { 4454 struct wpa_driver_nl80211_data *drv = bss->drv; 4455 4456 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 4457 bss->ifname, drv->device_ap_sme, drv->use_monitor); 4458 if (drv->device_ap_sme) { 4459 wpa_driver_nl80211_probe_req_report(bss, 0); 4460 if (!drv->use_monitor) 4461 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 4462 } else if (drv->use_monitor) 4463 nl80211_remove_monitor_interface(drv); 4464 else 4465 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 4466 4467 bss->beacon_set = 0; 4468 } 4469 4470 4471 static int nl80211_send_eapol_data(struct i802_bss *bss, 4472 const u8 *addr, const u8 *data, 4473 size_t data_len) 4474 { 4475 struct sockaddr_ll ll; 4476 int ret; 4477 4478 if (bss->drv->eapol_tx_sock < 0) { 4479 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 4480 return -1; 4481 } 4482 4483 os_memset(&ll, 0, sizeof(ll)); 4484 ll.sll_family = AF_PACKET; 4485 ll.sll_ifindex = bss->ifindex; 4486 ll.sll_protocol = htons(ETH_P_PAE); 4487 ll.sll_halen = ETH_ALEN; 4488 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 4489 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 4490 (struct sockaddr *) &ll, sizeof(ll)); 4491 if (ret < 0) 4492 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 4493 strerror(errno)); 4494 4495 return ret; 4496 } 4497 4498 4499 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 4500 4501 static int wpa_driver_nl80211_hapd_send_eapol( 4502 void *priv, const u8 *addr, const u8 *data, 4503 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 4504 { 4505 struct i802_bss *bss = priv; 4506 struct wpa_driver_nl80211_data *drv = bss->drv; 4507 struct ieee80211_hdr *hdr; 4508 size_t len; 4509 u8 *pos; 4510 int res; 4511 int qos = flags & WPA_STA_WMM; 4512 4513 if (drv->device_ap_sme || !drv->use_monitor) 4514 return nl80211_send_eapol_data(bss, addr, data, data_len); 4515 4516 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 4517 data_len; 4518 hdr = os_zalloc(len); 4519 if (hdr == NULL) { 4520 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 4521 (unsigned long) len); 4522 return -1; 4523 } 4524 4525 hdr->frame_control = 4526 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 4527 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 4528 if (encrypt) 4529 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 4530 if (qos) { 4531 hdr->frame_control |= 4532 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 4533 } 4534 4535 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 4536 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 4537 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 4538 pos = (u8 *) (hdr + 1); 4539 4540 if (qos) { 4541 /* Set highest priority in QoS header */ 4542 pos[0] = 7; 4543 pos[1] = 0; 4544 pos += 2; 4545 } 4546 4547 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 4548 pos += sizeof(rfc1042_header); 4549 WPA_PUT_BE16(pos, ETH_P_PAE); 4550 pos += 2; 4551 memcpy(pos, data, data_len); 4552 4553 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 4554 0, 0, 0, 0, NULL, 0); 4555 if (res < 0) { 4556 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 4557 "failed: %d (%s)", 4558 (unsigned long) len, errno, strerror(errno)); 4559 } 4560 os_free(hdr); 4561 4562 return res; 4563 } 4564 4565 4566 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 4567 unsigned int total_flags, 4568 unsigned int flags_or, 4569 unsigned int flags_and) 4570 { 4571 struct i802_bss *bss = priv; 4572 struct nl_msg *msg; 4573 struct nlattr *flags; 4574 struct nl80211_sta_flag_update upd; 4575 4576 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR 4577 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d", 4578 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and, 4579 !!(total_flags & WPA_STA_AUTHORIZED)); 4580 4581 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 4582 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) 4583 goto fail; 4584 4585 /* 4586 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 4587 * can be removed eventually. 4588 */ 4589 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 4590 if (!flags || 4591 ((total_flags & WPA_STA_AUTHORIZED) && 4592 nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) || 4593 ((total_flags & WPA_STA_WMM) && 4594 nla_put_flag(msg, NL80211_STA_FLAG_WME)) || 4595 ((total_flags & WPA_STA_SHORT_PREAMBLE) && 4596 nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) || 4597 ((total_flags & WPA_STA_MFP) && 4598 nla_put_flag(msg, NL80211_STA_FLAG_MFP)) || 4599 ((total_flags & WPA_STA_TDLS_PEER) && 4600 nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER))) 4601 goto fail; 4602 4603 nla_nest_end(msg, flags); 4604 4605 os_memset(&upd, 0, sizeof(upd)); 4606 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 4607 upd.set = sta_flags_nl80211(flags_or); 4608 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) 4609 goto fail; 4610 4611 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 4612 fail: 4613 nlmsg_free(msg); 4614 return -ENOBUFS; 4615 } 4616 4617 4618 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 4619 struct wpa_driver_associate_params *params) 4620 { 4621 enum nl80211_iftype nlmode, old_mode; 4622 4623 if (params->p2p) { 4624 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 4625 "group (GO)"); 4626 nlmode = NL80211_IFTYPE_P2P_GO; 4627 } else 4628 nlmode = NL80211_IFTYPE_AP; 4629 4630 old_mode = drv->nlmode; 4631 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 4632 nl80211_remove_monitor_interface(drv); 4633 return -1; 4634 } 4635 4636 if (params->freq.freq && 4637 nl80211_set_channel(drv->first_bss, ¶ms->freq, 0)) { 4638 if (old_mode != nlmode) 4639 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 4640 nl80211_remove_monitor_interface(drv); 4641 return -1; 4642 } 4643 4644 return 0; 4645 } 4646 4647 4648 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, 4649 int reset_mode) 4650 { 4651 struct nl_msg *msg; 4652 int ret; 4653 4654 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS); 4655 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4656 if (ret) { 4657 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 4658 "(%s)", ret, strerror(-ret)); 4659 } else { 4660 wpa_printf(MSG_DEBUG, 4661 "nl80211: Leave IBSS request sent successfully"); 4662 } 4663 4664 if (reset_mode && 4665 wpa_driver_nl80211_set_mode(drv->first_bss, 4666 NL80211_IFTYPE_STATION)) { 4667 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 4668 "station mode"); 4669 } 4670 4671 return ret; 4672 } 4673 4674 4675 static int nl80211_ht_vht_overrides(struct nl_msg *msg, 4676 struct wpa_driver_associate_params *params) 4677 { 4678 if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT)) 4679 return -1; 4680 4681 if (params->htcaps && params->htcaps_mask) { 4682 int sz = sizeof(struct ieee80211_ht_capabilities); 4683 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 4684 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 4685 params->htcaps_mask, sz); 4686 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz, 4687 params->htcaps) || 4688 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 4689 params->htcaps_mask)) 4690 return -1; 4691 } 4692 4693 #ifdef CONFIG_VHT_OVERRIDES 4694 if (params->disable_vht) { 4695 wpa_printf(MSG_DEBUG, " * VHT disabled"); 4696 if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT)) 4697 return -1; 4698 } 4699 4700 if (params->vhtcaps && params->vhtcaps_mask) { 4701 int sz = sizeof(struct ieee80211_vht_capabilities); 4702 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 4703 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 4704 params->vhtcaps_mask, sz); 4705 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz, 4706 params->vhtcaps) || 4707 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 4708 params->vhtcaps_mask)) 4709 return -1; 4710 } 4711 #endif /* CONFIG_VHT_OVERRIDES */ 4712 4713 return 0; 4714 } 4715 4716 4717 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 4718 struct wpa_driver_associate_params *params) 4719 { 4720 struct nl_msg *msg; 4721 int ret = -1; 4722 int count = 0; 4723 4724 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 4725 4726 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, ¶ms->freq)) { 4727 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 4728 "IBSS mode"); 4729 return -1; 4730 } 4731 4732 retry: 4733 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) || 4734 params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 4735 goto fail; 4736 4737 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4738 params->ssid, params->ssid_len); 4739 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) 4740 goto fail; 4741 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 4742 drv->ssid_len = params->ssid_len; 4743 4744 if (nl80211_put_freq_params(msg, ¶ms->freq) < 0 || 4745 nl80211_put_beacon_int(msg, params->beacon_int)) 4746 goto fail; 4747 4748 ret = nl80211_set_conn_keys(params, msg); 4749 if (ret) 4750 goto fail; 4751 4752 if (params->bssid && params->fixed_bssid) { 4753 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 4754 MAC2STR(params->bssid)); 4755 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) 4756 goto fail; 4757 } 4758 4759 if (params->fixed_freq) { 4760 wpa_printf(MSG_DEBUG, " * fixed_freq"); 4761 if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED)) 4762 goto fail; 4763 } 4764 4765 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 4766 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 4767 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 4768 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 4769 wpa_printf(MSG_DEBUG, " * control port"); 4770 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) 4771 goto fail; 4772 } 4773 4774 if (params->wpa_ie) { 4775 wpa_hexdump(MSG_DEBUG, 4776 " * Extra IEs for Beacon/Probe Response frames", 4777 params->wpa_ie, params->wpa_ie_len); 4778 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, 4779 params->wpa_ie)) 4780 goto fail; 4781 } 4782 4783 ret = nl80211_ht_vht_overrides(msg, params); 4784 if (ret < 0) 4785 goto fail; 4786 4787 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4788 msg = NULL; 4789 if (ret) { 4790 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 4791 ret, strerror(-ret)); 4792 count++; 4793 if (ret == -EALREADY && count == 1) { 4794 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 4795 "forced leave"); 4796 nl80211_leave_ibss(drv, 0); 4797 nlmsg_free(msg); 4798 goto retry; 4799 } 4800 } else { 4801 wpa_printf(MSG_DEBUG, 4802 "nl80211: Join IBSS request sent successfully"); 4803 } 4804 4805 fail: 4806 nlmsg_free(msg); 4807 return ret; 4808 } 4809 4810 4811 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 4812 struct wpa_driver_associate_params *params, 4813 struct nl_msg *msg) 4814 { 4815 if (params->bssid) { 4816 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 4817 MAC2STR(params->bssid)); 4818 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) 4819 return -1; 4820 } 4821 4822 if (params->bssid_hint) { 4823 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 4824 MAC2STR(params->bssid_hint)); 4825 if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 4826 params->bssid_hint)) 4827 return -1; 4828 } 4829 4830 if (params->freq.freq) { 4831 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq); 4832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, 4833 params->freq.freq)) 4834 return -1; 4835 drv->assoc_freq = params->freq.freq; 4836 } else 4837 drv->assoc_freq = 0; 4838 4839 if (params->freq_hint) { 4840 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 4841 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 4842 params->freq_hint)) 4843 return -1; 4844 } 4845 4846 if (params->bg_scan_period >= 0) { 4847 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 4848 params->bg_scan_period); 4849 if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 4850 params->bg_scan_period)) 4851 return -1; 4852 } 4853 4854 if (params->ssid) { 4855 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4856 params->ssid, params->ssid_len); 4857 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, 4858 params->ssid)) 4859 return -1; 4860 if (params->ssid_len > sizeof(drv->ssid)) 4861 return -1; 4862 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 4863 drv->ssid_len = params->ssid_len; 4864 } 4865 4866 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 4867 if (params->wpa_ie && 4868 nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie)) 4869 return -1; 4870 4871 if (params->wpa_proto) { 4872 enum nl80211_wpa_versions ver = 0; 4873 4874 if (params->wpa_proto & WPA_PROTO_WPA) 4875 ver |= NL80211_WPA_VERSION_1; 4876 if (params->wpa_proto & WPA_PROTO_RSN) 4877 ver |= NL80211_WPA_VERSION_2; 4878 4879 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 4880 if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) 4881 return -1; 4882 } 4883 4884 if (params->pairwise_suite != WPA_CIPHER_NONE) { 4885 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 4886 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 4887 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 4888 cipher)) 4889 return -1; 4890 } 4891 4892 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 4893 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 4894 /* 4895 * This is likely to work even though many drivers do not 4896 * advertise support for operations without GTK. 4897 */ 4898 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 4899 } else if (params->group_suite != WPA_CIPHER_NONE) { 4900 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 4901 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 4902 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher)) 4903 return -1; 4904 } 4905 4906 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 4907 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 4908 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 4909 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 4910 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 4911 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || 4912 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 4913 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || 4914 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B || 4915 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { 4916 int mgmt = WLAN_AKM_SUITE_PSK; 4917 4918 switch (params->key_mgmt_suite) { 4919 case WPA_KEY_MGMT_CCKM: 4920 mgmt = WLAN_AKM_SUITE_CCKM; 4921 break; 4922 case WPA_KEY_MGMT_IEEE8021X: 4923 mgmt = WLAN_AKM_SUITE_8021X; 4924 break; 4925 case WPA_KEY_MGMT_FT_IEEE8021X: 4926 mgmt = WLAN_AKM_SUITE_FT_8021X; 4927 break; 4928 case WPA_KEY_MGMT_FT_PSK: 4929 mgmt = WLAN_AKM_SUITE_FT_PSK; 4930 break; 4931 case WPA_KEY_MGMT_IEEE8021X_SHA256: 4932 mgmt = WLAN_AKM_SUITE_8021X_SHA256; 4933 break; 4934 case WPA_KEY_MGMT_PSK_SHA256: 4935 mgmt = WLAN_AKM_SUITE_PSK_SHA256; 4936 break; 4937 case WPA_KEY_MGMT_OSEN: 4938 mgmt = WLAN_AKM_SUITE_OSEN; 4939 break; 4940 case WPA_KEY_MGMT_IEEE8021X_SUITE_B: 4941 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B; 4942 break; 4943 case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192: 4944 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B_192; 4945 break; 4946 case WPA_KEY_MGMT_PSK: 4947 default: 4948 mgmt = WLAN_AKM_SUITE_PSK; 4949 break; 4950 } 4951 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 4952 if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt)) 4953 return -1; 4954 } 4955 4956 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) 4957 return -1; 4958 4959 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 4960 (params->pairwise_suite == WPA_CIPHER_NONE || 4961 params->pairwise_suite == WPA_CIPHER_WEP104 || 4962 params->pairwise_suite == WPA_CIPHER_WEP40) && 4963 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || 4964 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) 4965 return -1; 4966 4967 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED && 4968 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED)) 4969 return -1; 4970 4971 if (params->rrm_used) { 4972 u32 drv_rrm_flags = drv->capa.rrm_flags; 4973 if ((!((drv_rrm_flags & 4974 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) && 4975 (drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) && 4976 !(drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) || 4977 nla_put_flag(msg, NL80211_ATTR_USE_RRM)) 4978 return -1; 4979 } 4980 4981 if (nl80211_ht_vht_overrides(msg, params) < 0) 4982 return -1; 4983 4984 if (params->p2p) 4985 wpa_printf(MSG_DEBUG, " * P2P group"); 4986 4987 if (params->pbss) { 4988 wpa_printf(MSG_DEBUG, " * PBSS"); 4989 if (nla_put_flag(msg, NL80211_ATTR_PBSS)) 4990 return -1; 4991 } 4992 4993 drv->connect_reassoc = 0; 4994 if (params->prev_bssid) { 4995 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 4996 MAC2STR(params->prev_bssid)); 4997 if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 4998 params->prev_bssid)) 4999 return -1; 5000 drv->connect_reassoc = 1; 5001 } 5002 5003 return 0; 5004 } 5005 5006 5007 static int wpa_driver_nl80211_try_connect( 5008 struct wpa_driver_nl80211_data *drv, 5009 struct wpa_driver_associate_params *params) 5010 { 5011 struct nl_msg *msg; 5012 enum nl80211_auth_type type; 5013 int ret; 5014 int algs; 5015 5016 #ifdef CONFIG_DRIVER_NL80211_QCA 5017 if (params->req_key_mgmt_offload && params->psk && 5018 (params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 5019 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || 5020 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { 5021 wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK"); 5022 ret = issue_key_mgmt_set_key(drv, params->psk, 32); 5023 if (ret) 5024 return ret; 5025 } 5026 #endif /* CONFIG_DRIVER_NL80211_QCA */ 5027 5028 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 5029 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT); 5030 if (!msg) 5031 return -1; 5032 5033 ret = nl80211_connect_common(drv, params, msg); 5034 if (ret) 5035 goto fail; 5036 5037 algs = 0; 5038 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5039 algs++; 5040 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5041 algs++; 5042 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5043 algs++; 5044 if (algs > 1) { 5045 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 5046 "selection"); 5047 goto skip_auth_type; 5048 } 5049 5050 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5051 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5052 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5053 type = NL80211_AUTHTYPE_SHARED_KEY; 5054 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5055 type = NL80211_AUTHTYPE_NETWORK_EAP; 5056 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5057 type = NL80211_AUTHTYPE_FT; 5058 else 5059 goto fail; 5060 5061 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5062 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) 5063 goto fail; 5064 5065 skip_auth_type: 5066 ret = nl80211_set_conn_keys(params, msg); 5067 if (ret) 5068 goto fail; 5069 5070 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5071 msg = NULL; 5072 if (ret) { 5073 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 5074 "(%s)", ret, strerror(-ret)); 5075 } else { 5076 wpa_printf(MSG_DEBUG, 5077 "nl80211: Connect request send successfully"); 5078 } 5079 5080 fail: 5081 nlmsg_free(msg); 5082 return ret; 5083 5084 } 5085 5086 5087 static int wpa_driver_nl80211_connect( 5088 struct wpa_driver_nl80211_data *drv, 5089 struct wpa_driver_associate_params *params) 5090 { 5091 int ret; 5092 5093 /* Store the connection attempted bssid for future use */ 5094 if (params->bssid) 5095 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5096 else 5097 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5098 5099 ret = wpa_driver_nl80211_try_connect(drv, params); 5100 if (ret == -EALREADY) { 5101 /* 5102 * cfg80211 does not currently accept new connections if 5103 * we are already connected. As a workaround, force 5104 * disconnection and try again. 5105 */ 5106 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 5107 "disconnecting before reassociation " 5108 "attempt"); 5109 if (wpa_driver_nl80211_disconnect( 5110 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 5111 return -1; 5112 ret = wpa_driver_nl80211_try_connect(drv, params); 5113 } 5114 return ret; 5115 } 5116 5117 5118 static int wpa_driver_nl80211_associate( 5119 void *priv, struct wpa_driver_associate_params *params) 5120 { 5121 struct i802_bss *bss = priv; 5122 struct wpa_driver_nl80211_data *drv = bss->drv; 5123 int ret = -1; 5124 struct nl_msg *msg; 5125 5126 nl80211_unmask_11b_rates(bss); 5127 5128 if (params->mode == IEEE80211_MODE_AP) 5129 return wpa_driver_nl80211_ap(drv, params); 5130 5131 if (params->mode == IEEE80211_MODE_IBSS) 5132 return wpa_driver_nl80211_ibss(drv, params); 5133 5134 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 5135 enum nl80211_iftype nlmode = params->p2p ? 5136 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5137 5138 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 5139 return -1; 5140 return wpa_driver_nl80211_connect(drv, params); 5141 } 5142 5143 nl80211_mark_disconnected(drv); 5144 5145 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 5146 drv->ifindex); 5147 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE); 5148 if (!msg) 5149 return -1; 5150 5151 ret = nl80211_connect_common(drv, params, msg); 5152 if (ret) 5153 goto fail; 5154 5155 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5156 msg = NULL; 5157 if (ret) { 5158 wpa_dbg(drv->ctx, MSG_DEBUG, 5159 "nl80211: MLME command failed (assoc): ret=%d (%s)", 5160 ret, strerror(-ret)); 5161 nl80211_dump_scan(drv); 5162 } else { 5163 wpa_printf(MSG_DEBUG, 5164 "nl80211: Association request send successfully"); 5165 } 5166 5167 fail: 5168 nlmsg_free(msg); 5169 return ret; 5170 } 5171 5172 5173 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 5174 int ifindex, enum nl80211_iftype mode) 5175 { 5176 struct nl_msg *msg; 5177 int ret = -ENOBUFS; 5178 5179 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 5180 ifindex, mode, nl80211_iftype_str(mode)); 5181 5182 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE); 5183 if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode)) 5184 goto fail; 5185 5186 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5187 msg = NULL; 5188 if (!ret) 5189 return 0; 5190 fail: 5191 nlmsg_free(msg); 5192 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 5193 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 5194 return ret; 5195 } 5196 5197 5198 static int wpa_driver_nl80211_set_mode_impl( 5199 struct i802_bss *bss, 5200 enum nl80211_iftype nlmode, 5201 struct hostapd_freq_params *desired_freq_params) 5202 { 5203 struct wpa_driver_nl80211_data *drv = bss->drv; 5204 int ret = -1; 5205 int i; 5206 int was_ap = is_ap_interface(drv->nlmode); 5207 int res; 5208 int mode_switch_res; 5209 5210 if (TEST_FAIL()) 5211 return -1; 5212 5213 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 5214 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss)) 5215 mode_switch_res = 0; 5216 5217 if (mode_switch_res == 0) { 5218 drv->nlmode = nlmode; 5219 ret = 0; 5220 goto done; 5221 } 5222 5223 if (mode_switch_res == -ENODEV) 5224 return -1; 5225 5226 if (nlmode == drv->nlmode) { 5227 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 5228 "requested mode - ignore error"); 5229 ret = 0; 5230 goto done; /* Already in the requested mode */ 5231 } 5232 5233 /* mac80211 doesn't allow mode changes while the device is up, so 5234 * take the device down, try to set the mode again, and bring the 5235 * device back up. 5236 */ 5237 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 5238 "interface down"); 5239 for (i = 0; i < 10; i++) { 5240 res = i802_set_iface_flags(bss, 0); 5241 if (res == -EACCES || res == -ENODEV) 5242 break; 5243 if (res != 0) { 5244 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 5245 "interface down"); 5246 os_sleep(0, 100000); 5247 continue; 5248 } 5249 5250 /* 5251 * Setting the mode will fail for some drivers if the phy is 5252 * on a frequency that the mode is disallowed in. 5253 */ 5254 if (desired_freq_params) { 5255 res = nl80211_set_channel(bss, desired_freq_params, 0); 5256 if (res) { 5257 wpa_printf(MSG_DEBUG, 5258 "nl80211: Failed to set frequency on interface"); 5259 } 5260 } 5261 5262 /* Try to set the mode again while the interface is down */ 5263 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 5264 if (mode_switch_res == -EBUSY) { 5265 wpa_printf(MSG_DEBUG, 5266 "nl80211: Delaying mode set while interface going down"); 5267 os_sleep(0, 100000); 5268 continue; 5269 } 5270 ret = mode_switch_res; 5271 break; 5272 } 5273 5274 if (!ret) { 5275 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 5276 "interface is down"); 5277 drv->nlmode = nlmode; 5278 drv->ignore_if_down_event = 1; 5279 } 5280 5281 /* Bring the interface back up */ 5282 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); 5283 if (res != 0) { 5284 wpa_printf(MSG_DEBUG, 5285 "nl80211: Failed to set interface up after switching mode"); 5286 ret = -1; 5287 } 5288 5289 done: 5290 if (ret) { 5291 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 5292 "from %d failed", nlmode, drv->nlmode); 5293 return ret; 5294 } 5295 5296 if (is_p2p_net_interface(nlmode)) { 5297 wpa_printf(MSG_DEBUG, 5298 "nl80211: Interface %s mode change to P2P - disable 11b rates", 5299 bss->ifname); 5300 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 5301 } else if (drv->disabled_11b_rates) { 5302 wpa_printf(MSG_DEBUG, 5303 "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates", 5304 bss->ifname); 5305 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 5306 } 5307 5308 if (is_ap_interface(nlmode)) { 5309 nl80211_mgmt_unsubscribe(bss, "start AP"); 5310 /* Setup additional AP mode functionality if needed */ 5311 if (nl80211_setup_ap(bss)) 5312 return -1; 5313 } else if (was_ap) { 5314 /* Remove additional AP mode functionality */ 5315 nl80211_teardown_ap(bss); 5316 } else { 5317 nl80211_mgmt_unsubscribe(bss, "mode change"); 5318 } 5319 5320 if (is_mesh_interface(nlmode) && 5321 nl80211_mgmt_subscribe_mesh(bss)) 5322 return -1; 5323 5324 if (!bss->in_deinit && !is_ap_interface(nlmode) && 5325 !is_mesh_interface(nlmode) && 5326 nl80211_mgmt_subscribe_non_ap(bss) < 0) 5327 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 5328 "frame processing - ignore for now"); 5329 5330 return 0; 5331 } 5332 5333 5334 int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 5335 enum nl80211_iftype nlmode) 5336 { 5337 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL); 5338 } 5339 5340 5341 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 5342 struct hostapd_freq_params *freq) 5343 { 5344 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC, 5345 freq); 5346 } 5347 5348 5349 static int wpa_driver_nl80211_get_capa(void *priv, 5350 struct wpa_driver_capa *capa) 5351 { 5352 struct i802_bss *bss = priv; 5353 struct wpa_driver_nl80211_data *drv = bss->drv; 5354 5355 if (!drv->has_capability) 5356 return -1; 5357 os_memcpy(capa, &drv->capa, sizeof(*capa)); 5358 if (drv->extended_capa && drv->extended_capa_mask) { 5359 capa->extended_capa = drv->extended_capa; 5360 capa->extended_capa_mask = drv->extended_capa_mask; 5361 capa->extended_capa_len = drv->extended_capa_len; 5362 } 5363 5364 return 0; 5365 } 5366 5367 5368 static int wpa_driver_nl80211_set_operstate(void *priv, int state) 5369 { 5370 struct i802_bss *bss = priv; 5371 struct wpa_driver_nl80211_data *drv = bss->drv; 5372 5373 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 5374 bss->ifname, drv->operstate, state, 5375 state ? "UP" : "DORMANT"); 5376 drv->operstate = state; 5377 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 5378 state ? IF_OPER_UP : IF_OPER_DORMANT); 5379 } 5380 5381 5382 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 5383 { 5384 struct i802_bss *bss = priv; 5385 struct wpa_driver_nl80211_data *drv = bss->drv; 5386 struct nl_msg *msg; 5387 struct nl80211_sta_flag_update upd; 5388 int ret; 5389 5390 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 5391 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 5392 return 0; 5393 } 5394 5395 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 5396 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 5397 5398 os_memset(&upd, 0, sizeof(upd)); 5399 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 5400 if (authorized) 5401 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 5402 5403 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 5404 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) || 5405 nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) { 5406 nlmsg_free(msg); 5407 return -ENOBUFS; 5408 } 5409 5410 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5411 if (!ret) 5412 return 0; 5413 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 5414 ret, strerror(-ret)); 5415 return ret; 5416 } 5417 5418 5419 /* Set kernel driver on given frequency (MHz) */ 5420 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 5421 { 5422 struct i802_bss *bss = priv; 5423 return nl80211_set_channel(bss, freq, 0); 5424 } 5425 5426 5427 static inline int min_int(int a, int b) 5428 { 5429 if (a < b) 5430 return a; 5431 return b; 5432 } 5433 5434 5435 static int get_key_handler(struct nl_msg *msg, void *arg) 5436 { 5437 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5438 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5439 5440 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5441 genlmsg_attrlen(gnlh, 0), NULL); 5442 5443 /* 5444 * TODO: validate the key index and mac address! 5445 * Otherwise, there's a race condition as soon as 5446 * the kernel starts sending key notifications. 5447 */ 5448 5449 if (tb[NL80211_ATTR_KEY_SEQ]) 5450 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 5451 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 5452 return NL_SKIP; 5453 } 5454 5455 5456 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 5457 int idx, u8 *seq) 5458 { 5459 struct i802_bss *bss = priv; 5460 struct wpa_driver_nl80211_data *drv = bss->drv; 5461 struct nl_msg *msg; 5462 5463 msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0, 5464 NL80211_CMD_GET_KEY); 5465 if (!msg || 5466 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || 5467 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) { 5468 nlmsg_free(msg); 5469 return -ENOBUFS; 5470 } 5471 5472 memset(seq, 0, 6); 5473 5474 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 5475 } 5476 5477 5478 static int i802_set_rts(void *priv, int rts) 5479 { 5480 struct i802_bss *bss = priv; 5481 struct wpa_driver_nl80211_data *drv = bss->drv; 5482 struct nl_msg *msg; 5483 int ret; 5484 u32 val; 5485 5486 if (rts >= 2347) 5487 val = (u32) -1; 5488 else 5489 val = rts; 5490 5491 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || 5492 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) { 5493 nlmsg_free(msg); 5494 return -ENOBUFS; 5495 } 5496 5497 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5498 if (!ret) 5499 return 0; 5500 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 5501 "%d (%s)", rts, ret, strerror(-ret)); 5502 return ret; 5503 } 5504 5505 5506 static int i802_set_frag(void *priv, int frag) 5507 { 5508 struct i802_bss *bss = priv; 5509 struct wpa_driver_nl80211_data *drv = bss->drv; 5510 struct nl_msg *msg; 5511 int ret; 5512 u32 val; 5513 5514 if (frag >= 2346) 5515 val = (u32) -1; 5516 else 5517 val = frag; 5518 5519 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || 5520 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) { 5521 nlmsg_free(msg); 5522 return -ENOBUFS; 5523 } 5524 5525 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5526 if (!ret) 5527 return 0; 5528 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 5529 "%d: %d (%s)", frag, ret, strerror(-ret)); 5530 return ret; 5531 } 5532 5533 5534 static int i802_flush(void *priv) 5535 { 5536 struct i802_bss *bss = priv; 5537 struct nl_msg *msg; 5538 int res; 5539 5540 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 5541 bss->ifname); 5542 5543 /* 5544 * XXX: FIX! this needs to flush all VLANs too 5545 */ 5546 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION); 5547 res = send_and_recv_msgs(bss->drv, msg, NULL, NULL); 5548 if (res) { 5549 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 5550 "(%s)", res, strerror(-res)); 5551 } 5552 return res; 5553 } 5554 5555 5556 static int get_sta_handler(struct nl_msg *msg, void *arg) 5557 { 5558 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5559 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5560 struct hostap_sta_driver_data *data = arg; 5561 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 5562 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 5563 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 5564 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 5565 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 5566 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 5567 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 5568 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 5569 [NL80211_STA_INFO_RX_BYTES64] = { .type = NLA_U64 }, 5570 [NL80211_STA_INFO_TX_BYTES64] = { .type = NLA_U64 }, 5571 }; 5572 5573 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5574 genlmsg_attrlen(gnlh, 0), NULL); 5575 5576 /* 5577 * TODO: validate the interface and mac address! 5578 * Otherwise, there's a race condition as soon as 5579 * the kernel starts sending station notifications. 5580 */ 5581 5582 if (!tb[NL80211_ATTR_STA_INFO]) { 5583 wpa_printf(MSG_DEBUG, "sta stats missing!"); 5584 return NL_SKIP; 5585 } 5586 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 5587 tb[NL80211_ATTR_STA_INFO], 5588 stats_policy)) { 5589 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 5590 return NL_SKIP; 5591 } 5592 5593 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 5594 data->inactive_msec = 5595 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 5596 /* For backwards compatibility, fetch the 32-bit counters first. */ 5597 if (stats[NL80211_STA_INFO_RX_BYTES]) 5598 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 5599 if (stats[NL80211_STA_INFO_TX_BYTES]) 5600 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 5601 if (stats[NL80211_STA_INFO_RX_BYTES64] && 5602 stats[NL80211_STA_INFO_TX_BYTES64]) { 5603 /* 5604 * The driver supports 64-bit counters, so use them to override 5605 * the 32-bit values. 5606 */ 5607 data->rx_bytes = 5608 nla_get_u64(stats[NL80211_STA_INFO_RX_BYTES64]); 5609 data->tx_bytes = 5610 nla_get_u64(stats[NL80211_STA_INFO_TX_BYTES64]); 5611 data->bytes_64bit = 1; 5612 } 5613 if (stats[NL80211_STA_INFO_RX_PACKETS]) 5614 data->rx_packets = 5615 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 5616 if (stats[NL80211_STA_INFO_TX_PACKETS]) 5617 data->tx_packets = 5618 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 5619 if (stats[NL80211_STA_INFO_TX_FAILED]) 5620 data->tx_retry_failed = 5621 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 5622 5623 return NL_SKIP; 5624 } 5625 5626 static int i802_read_sta_data(struct i802_bss *bss, 5627 struct hostap_sta_driver_data *data, 5628 const u8 *addr) 5629 { 5630 struct nl_msg *msg; 5631 5632 os_memset(data, 0, sizeof(*data)); 5633 5634 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) || 5635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 5636 nlmsg_free(msg); 5637 return -ENOBUFS; 5638 } 5639 5640 return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data); 5641 } 5642 5643 5644 static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 5645 int cw_min, int cw_max, int burst_time) 5646 { 5647 struct i802_bss *bss = priv; 5648 struct wpa_driver_nl80211_data *drv = bss->drv; 5649 struct nl_msg *msg; 5650 struct nlattr *txq, *params; 5651 5652 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY); 5653 if (!msg) 5654 return -1; 5655 5656 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 5657 if (!txq) 5658 goto fail; 5659 5660 /* We are only sending parameters for a single TXQ at a time */ 5661 params = nla_nest_start(msg, 1); 5662 if (!params) 5663 goto fail; 5664 5665 switch (queue) { 5666 case 0: 5667 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO)) 5668 goto fail; 5669 break; 5670 case 1: 5671 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI)) 5672 goto fail; 5673 break; 5674 case 2: 5675 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE)) 5676 goto fail; 5677 break; 5678 case 3: 5679 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK)) 5680 goto fail; 5681 break; 5682 } 5683 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 5684 * 32 usec, so need to convert the value here. */ 5685 if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP, 5686 (burst_time * 100 + 16) / 32) || 5687 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) || 5688 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) || 5689 nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs)) 5690 goto fail; 5691 5692 nla_nest_end(msg, params); 5693 5694 nla_nest_end(msg, txq); 5695 5696 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 5697 return 0; 5698 msg = NULL; 5699 fail: 5700 nlmsg_free(msg); 5701 return -1; 5702 } 5703 5704 5705 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 5706 const char *ifname, int vlan_id) 5707 { 5708 struct wpa_driver_nl80211_data *drv = bss->drv; 5709 struct nl_msg *msg; 5710 int ret; 5711 5712 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 5713 ", ifname=%s[%d], vlan_id=%d)", 5714 bss->ifname, if_nametoindex(bss->ifname), 5715 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 5716 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 5717 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 5718 nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) { 5719 nlmsg_free(msg); 5720 return -ENOBUFS; 5721 } 5722 5723 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5724 if (ret < 0) { 5725 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 5726 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 5727 MAC2STR(addr), ifname, vlan_id, ret, 5728 strerror(-ret)); 5729 } 5730 return ret; 5731 } 5732 5733 5734 static int i802_get_inact_sec(void *priv, const u8 *addr) 5735 { 5736 struct hostap_sta_driver_data data; 5737 int ret; 5738 5739 data.inactive_msec = (unsigned long) -1; 5740 ret = i802_read_sta_data(priv, &data, addr); 5741 if (ret == -ENOENT) 5742 return -ENOENT; 5743 if (ret || data.inactive_msec == (unsigned long) -1) 5744 return -1; 5745 return data.inactive_msec / 1000; 5746 } 5747 5748 5749 static int i802_sta_clear_stats(void *priv, const u8 *addr) 5750 { 5751 #if 0 5752 /* TODO */ 5753 #endif 5754 return 0; 5755 } 5756 5757 5758 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 5759 int reason) 5760 { 5761 struct i802_bss *bss = priv; 5762 struct wpa_driver_nl80211_data *drv = bss->drv; 5763 struct ieee80211_mgmt mgmt; 5764 5765 if (is_mesh_interface(drv->nlmode)) 5766 return -1; 5767 5768 if (drv->device_ap_sme) 5769 return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason); 5770 5771 memset(&mgmt, 0, sizeof(mgmt)); 5772 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 5773 WLAN_FC_STYPE_DEAUTH); 5774 memcpy(mgmt.da, addr, ETH_ALEN); 5775 memcpy(mgmt.sa, own_addr, ETH_ALEN); 5776 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 5777 mgmt.u.deauth.reason_code = host_to_le16(reason); 5778 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 5779 IEEE80211_HDRLEN + 5780 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 5781 0, NULL, 0); 5782 } 5783 5784 5785 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 5786 int reason) 5787 { 5788 struct i802_bss *bss = priv; 5789 struct wpa_driver_nl80211_data *drv = bss->drv; 5790 struct ieee80211_mgmt mgmt; 5791 5792 if (is_mesh_interface(drv->nlmode)) 5793 return -1; 5794 5795 if (drv->device_ap_sme) 5796 return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason); 5797 5798 memset(&mgmt, 0, sizeof(mgmt)); 5799 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 5800 WLAN_FC_STYPE_DISASSOC); 5801 memcpy(mgmt.da, addr, ETH_ALEN); 5802 memcpy(mgmt.sa, own_addr, ETH_ALEN); 5803 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 5804 mgmt.u.disassoc.reason_code = host_to_le16(reason); 5805 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 5806 IEEE80211_HDRLEN + 5807 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 5808 0, NULL, 0); 5809 } 5810 5811 5812 static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 5813 { 5814 char buf[200], *pos, *end; 5815 int i, res; 5816 5817 pos = buf; 5818 end = pos + sizeof(buf); 5819 5820 for (i = 0; i < drv->num_if_indices; i++) { 5821 if (!drv->if_indices[i]) 5822 continue; 5823 res = os_snprintf(pos, end - pos, " %d(%d)", 5824 drv->if_indices[i], 5825 drv->if_indices_reason[i]); 5826 if (os_snprintf_error(end - pos, res)) 5827 break; 5828 pos += res; 5829 } 5830 *pos = '\0'; 5831 5832 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 5833 drv->num_if_indices, buf); 5834 } 5835 5836 5837 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5838 int ifidx_reason) 5839 { 5840 int i; 5841 int *old, *old_reason; 5842 5843 wpa_printf(MSG_DEBUG, 5844 "nl80211: Add own interface ifindex %d (ifidx_reason %d)", 5845 ifidx, ifidx_reason); 5846 if (have_ifidx(drv, ifidx, ifidx_reason)) { 5847 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 5848 ifidx); 5849 return; 5850 } 5851 for (i = 0; i < drv->num_if_indices; i++) { 5852 if (drv->if_indices[i] == 0) { 5853 drv->if_indices[i] = ifidx; 5854 drv->if_indices_reason[i] = ifidx_reason; 5855 dump_ifidx(drv); 5856 return; 5857 } 5858 } 5859 5860 if (drv->if_indices != drv->default_if_indices) 5861 old = drv->if_indices; 5862 else 5863 old = NULL; 5864 5865 if (drv->if_indices_reason != drv->default_if_indices_reason) 5866 old_reason = drv->if_indices_reason; 5867 else 5868 old_reason = NULL; 5869 5870 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 5871 sizeof(int)); 5872 drv->if_indices_reason = os_realloc_array(old_reason, 5873 drv->num_if_indices + 1, 5874 sizeof(int)); 5875 if (!drv->if_indices) { 5876 if (!old) 5877 drv->if_indices = drv->default_if_indices; 5878 else 5879 drv->if_indices = old; 5880 } 5881 if (!drv->if_indices_reason) { 5882 if (!old_reason) 5883 drv->if_indices_reason = drv->default_if_indices_reason; 5884 else 5885 drv->if_indices_reason = old_reason; 5886 } 5887 if (!drv->if_indices || !drv->if_indices_reason) { 5888 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 5889 "interfaces"); 5890 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 5891 return; 5892 } 5893 if (!old) 5894 os_memcpy(drv->if_indices, drv->default_if_indices, 5895 sizeof(drv->default_if_indices)); 5896 if (!old_reason) 5897 os_memcpy(drv->if_indices_reason, 5898 drv->default_if_indices_reason, 5899 sizeof(drv->default_if_indices_reason)); 5900 drv->if_indices[drv->num_if_indices] = ifidx; 5901 drv->if_indices_reason[drv->num_if_indices] = ifidx_reason; 5902 drv->num_if_indices++; 5903 dump_ifidx(drv); 5904 } 5905 5906 5907 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5908 int ifidx_reason) 5909 { 5910 int i; 5911 5912 for (i = 0; i < drv->num_if_indices; i++) { 5913 if ((drv->if_indices[i] == ifidx || ifidx == IFIDX_ANY) && 5914 (drv->if_indices_reason[i] == ifidx_reason || 5915 ifidx_reason == IFIDX_ANY)) { 5916 drv->if_indices[i] = 0; 5917 break; 5918 } 5919 } 5920 dump_ifidx(drv); 5921 } 5922 5923 5924 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5925 int ifidx_reason) 5926 { 5927 int i; 5928 5929 for (i = 0; i < drv->num_if_indices; i++) 5930 if (drv->if_indices[i] == ifidx && 5931 (drv->if_indices_reason[i] == ifidx_reason || 5932 ifidx_reason == IFIDX_ANY)) 5933 return 1; 5934 5935 return 0; 5936 } 5937 5938 5939 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 5940 const char *bridge_ifname, char *ifname_wds) 5941 { 5942 struct i802_bss *bss = priv; 5943 struct wpa_driver_nl80211_data *drv = bss->drv; 5944 char name[IFNAMSIZ + 1]; 5945 5946 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 5947 if (ifname_wds) 5948 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 5949 5950 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 5951 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 5952 if (val) { 5953 if (!if_nametoindex(name)) { 5954 if (nl80211_create_iface(drv, name, 5955 NL80211_IFTYPE_AP_VLAN, 5956 bss->addr, 1, NULL, NULL, 0) < 5957 0) 5958 return -1; 5959 if (bridge_ifname && 5960 linux_br_add_if(drv->global->ioctl_sock, 5961 bridge_ifname, name) < 0) 5962 return -1; 5963 } 5964 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 5965 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 5966 "interface %s up", name); 5967 } 5968 return i802_set_sta_vlan(priv, addr, name, 0); 5969 } else { 5970 if (bridge_ifname) 5971 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 5972 name); 5973 5974 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 5975 nl80211_remove_iface(drv, if_nametoindex(name)); 5976 return 0; 5977 } 5978 } 5979 5980 5981 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 5982 { 5983 struct wpa_driver_nl80211_data *drv = eloop_ctx; 5984 struct sockaddr_ll lladdr; 5985 unsigned char buf[3000]; 5986 int len; 5987 socklen_t fromlen = sizeof(lladdr); 5988 5989 len = recvfrom(sock, buf, sizeof(buf), 0, 5990 (struct sockaddr *)&lladdr, &fromlen); 5991 if (len < 0) { 5992 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 5993 strerror(errno)); 5994 return; 5995 } 5996 5997 if (have_ifidx(drv, lladdr.sll_ifindex, IFIDX_ANY)) 5998 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 5999 } 6000 6001 6002 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 6003 struct i802_bss *bss, 6004 const char *brname, const char *ifname) 6005 { 6006 int br_ifindex; 6007 char in_br[IFNAMSIZ]; 6008 6009 os_strlcpy(bss->brname, brname, IFNAMSIZ); 6010 br_ifindex = if_nametoindex(brname); 6011 if (br_ifindex == 0) { 6012 /* 6013 * Bridge was configured, but the bridge device does 6014 * not exist. Try to add it now. 6015 */ 6016 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 6017 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 6018 "bridge interface %s: %s", 6019 brname, strerror(errno)); 6020 return -1; 6021 } 6022 bss->added_bridge = 1; 6023 br_ifindex = if_nametoindex(brname); 6024 add_ifidx(drv, br_ifindex, drv->ifindex); 6025 } 6026 bss->br_ifindex = br_ifindex; 6027 6028 if (linux_br_get(in_br, ifname) == 0) { 6029 if (os_strcmp(in_br, brname) == 0) 6030 return 0; /* already in the bridge */ 6031 6032 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 6033 "bridge %s", ifname, in_br); 6034 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 6035 0) { 6036 wpa_printf(MSG_ERROR, "nl80211: Failed to " 6037 "remove interface %s from bridge " 6038 "%s: %s", 6039 ifname, brname, strerror(errno)); 6040 return -1; 6041 } 6042 } 6043 6044 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 6045 ifname, brname); 6046 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 6047 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 6048 "into bridge %s: %s", 6049 ifname, brname, strerror(errno)); 6050 return -1; 6051 } 6052 bss->added_if_into_bridge = 1; 6053 6054 return 0; 6055 } 6056 6057 6058 static void *i802_init(struct hostapd_data *hapd, 6059 struct wpa_init_params *params) 6060 { 6061 struct wpa_driver_nl80211_data *drv; 6062 struct i802_bss *bss; 6063 size_t i; 6064 char master_ifname[IFNAMSIZ]; 6065 int ifindex, br_ifindex = 0; 6066 int br_added = 0; 6067 6068 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 6069 params->global_priv, 1, 6070 params->bssid, params->driver_params); 6071 if (bss == NULL) 6072 return NULL; 6073 6074 drv = bss->drv; 6075 6076 if (linux_br_get(master_ifname, params->ifname) == 0) { 6077 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 6078 params->ifname, master_ifname); 6079 br_ifindex = if_nametoindex(master_ifname); 6080 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); 6081 } else if ((params->num_bridge == 0 || !params->bridge[0]) && 6082 linux_master_get(master_ifname, params->ifname) == 0) { 6083 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s", 6084 params->ifname, master_ifname); 6085 /* start listening for EAPOL on the master interface */ 6086 add_ifidx(drv, if_nametoindex(master_ifname), drv->ifindex); 6087 6088 /* check if master itself is under bridge */ 6089 if (linux_br_get(master_ifname, master_ifname) == 0) { 6090 wpa_printf(MSG_DEBUG, "nl80211: which is in bridge %s", 6091 master_ifname); 6092 br_ifindex = if_nametoindex(master_ifname); 6093 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); 6094 } 6095 } else { 6096 master_ifname[0] = '\0'; 6097 } 6098 6099 bss->br_ifindex = br_ifindex; 6100 6101 for (i = 0; i < params->num_bridge; i++) { 6102 if (params->bridge[i]) { 6103 ifindex = if_nametoindex(params->bridge[i]); 6104 if (ifindex) 6105 add_ifidx(drv, ifindex, drv->ifindex); 6106 if (ifindex == br_ifindex) 6107 br_added = 1; 6108 } 6109 } 6110 6111 /* start listening for EAPOL on the default AP interface */ 6112 add_ifidx(drv, drv->ifindex, IFIDX_ANY); 6113 6114 if (params->num_bridge && params->bridge[0]) { 6115 if (i802_check_bridge(drv, bss, params->bridge[0], 6116 params->ifname) < 0) 6117 goto failed; 6118 if (os_strcmp(params->bridge[0], master_ifname) != 0) 6119 br_added = 1; 6120 } 6121 6122 if (!br_added && br_ifindex && 6123 (params->num_bridge == 0 || !params->bridge[0])) 6124 add_ifidx(drv, br_ifindex, drv->ifindex); 6125 6126 #ifdef CONFIG_LIBNL3_ROUTE 6127 if (bss->added_if_into_bridge) { 6128 drv->rtnl_sk = nl_socket_alloc(); 6129 if (drv->rtnl_sk == NULL) { 6130 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock"); 6131 goto failed; 6132 } 6133 6134 if (nl_connect(drv->rtnl_sk, NETLINK_ROUTE)) { 6135 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s", 6136 strerror(errno)); 6137 goto failed; 6138 } 6139 } 6140 #endif /* CONFIG_LIBNL3_ROUTE */ 6141 6142 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 6143 if (drv->eapol_sock < 0) { 6144 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 6145 strerror(errno)); 6146 goto failed; 6147 } 6148 6149 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 6150 { 6151 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 6152 goto failed; 6153 } 6154 6155 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 6156 params->own_addr)) 6157 goto failed; 6158 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN); 6159 6160 memcpy(bss->addr, params->own_addr, ETH_ALEN); 6161 6162 return bss; 6163 6164 failed: 6165 wpa_driver_nl80211_deinit(bss); 6166 return NULL; 6167 } 6168 6169 6170 static void i802_deinit(void *priv) 6171 { 6172 struct i802_bss *bss = priv; 6173 wpa_driver_nl80211_deinit(bss); 6174 } 6175 6176 6177 static enum nl80211_iftype wpa_driver_nl80211_if_type( 6178 enum wpa_driver_if_type type) 6179 { 6180 switch (type) { 6181 case WPA_IF_STATION: 6182 return NL80211_IFTYPE_STATION; 6183 case WPA_IF_P2P_CLIENT: 6184 case WPA_IF_P2P_GROUP: 6185 return NL80211_IFTYPE_P2P_CLIENT; 6186 case WPA_IF_AP_VLAN: 6187 return NL80211_IFTYPE_AP_VLAN; 6188 case WPA_IF_AP_BSS: 6189 return NL80211_IFTYPE_AP; 6190 case WPA_IF_P2P_GO: 6191 return NL80211_IFTYPE_P2P_GO; 6192 case WPA_IF_P2P_DEVICE: 6193 return NL80211_IFTYPE_P2P_DEVICE; 6194 case WPA_IF_MESH: 6195 return NL80211_IFTYPE_MESH_POINT; 6196 default: 6197 return -1; 6198 } 6199 } 6200 6201 6202 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 6203 { 6204 struct wpa_driver_nl80211_data *drv; 6205 dl_list_for_each(drv, &global->interfaces, 6206 struct wpa_driver_nl80211_data, list) { 6207 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 6208 return 1; 6209 } 6210 return 0; 6211 } 6212 6213 6214 static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr) 6215 { 6216 unsigned int idx; 6217 6218 if (!drv->global) 6219 return -1; 6220 6221 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 6222 for (idx = 0; idx < 64; idx++) { 6223 new_addr[0] = drv->first_bss->addr[0] | 0x02; 6224 new_addr[0] ^= idx << 2; 6225 if (!nl80211_addr_in_use(drv->global, new_addr)) 6226 break; 6227 } 6228 if (idx == 64) 6229 return -1; 6230 6231 wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address " 6232 MACSTR, MAC2STR(new_addr)); 6233 6234 return 0; 6235 } 6236 6237 6238 struct wdev_info { 6239 u64 wdev_id; 6240 int wdev_id_set; 6241 u8 macaddr[ETH_ALEN]; 6242 }; 6243 6244 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 6245 { 6246 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6247 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6248 struct wdev_info *wi = arg; 6249 6250 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6251 genlmsg_attrlen(gnlh, 0), NULL); 6252 if (tb[NL80211_ATTR_WDEV]) { 6253 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 6254 wi->wdev_id_set = 1; 6255 } 6256 6257 if (tb[NL80211_ATTR_MAC]) 6258 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 6259 ETH_ALEN); 6260 6261 return NL_SKIP; 6262 } 6263 6264 6265 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 6266 const char *ifname, const u8 *addr, 6267 void *bss_ctx, void **drv_priv, 6268 char *force_ifname, u8 *if_addr, 6269 const char *bridge, int use_existing, 6270 int setup_ap) 6271 { 6272 enum nl80211_iftype nlmode; 6273 struct i802_bss *bss = priv; 6274 struct wpa_driver_nl80211_data *drv = bss->drv; 6275 int ifidx; 6276 int added = 1; 6277 6278 if (addr) 6279 os_memcpy(if_addr, addr, ETH_ALEN); 6280 nlmode = wpa_driver_nl80211_if_type(type); 6281 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 6282 struct wdev_info p2pdev_info; 6283 6284 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 6285 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 6286 0, nl80211_wdev_handler, 6287 &p2pdev_info, use_existing); 6288 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 6289 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 6290 ifname); 6291 return -1; 6292 } 6293 6294 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 6295 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 6296 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 6297 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 6298 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 6299 ifname, 6300 (long long unsigned int) p2pdev_info.wdev_id); 6301 } else { 6302 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 6303 0, NULL, NULL, use_existing); 6304 if (use_existing && ifidx == -ENFILE) { 6305 added = 0; 6306 ifidx = if_nametoindex(ifname); 6307 } else if (ifidx < 0) { 6308 return -1; 6309 } 6310 } 6311 6312 if (!addr) { 6313 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 6314 os_memcpy(if_addr, bss->addr, ETH_ALEN); 6315 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 6316 ifname, if_addr) < 0) { 6317 if (added) 6318 nl80211_remove_iface(drv, ifidx); 6319 return -1; 6320 } 6321 } 6322 6323 if (!addr && 6324 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 6325 type == WPA_IF_P2P_GO || type == WPA_IF_MESH || 6326 type == WPA_IF_STATION)) { 6327 /* Enforce unique address */ 6328 u8 new_addr[ETH_ALEN]; 6329 6330 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 6331 new_addr) < 0) { 6332 if (added) 6333 nl80211_remove_iface(drv, ifidx); 6334 return -1; 6335 } 6336 if (nl80211_addr_in_use(drv->global, new_addr)) { 6337 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 6338 "for interface %s type %d", ifname, type); 6339 if (nl80211_vif_addr(drv, new_addr) < 0) { 6340 if (added) 6341 nl80211_remove_iface(drv, ifidx); 6342 return -1; 6343 } 6344 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 6345 new_addr) < 0) { 6346 if (added) 6347 nl80211_remove_iface(drv, ifidx); 6348 return -1; 6349 } 6350 } 6351 os_memcpy(if_addr, new_addr, ETH_ALEN); 6352 } 6353 6354 if (type == WPA_IF_AP_BSS && setup_ap) { 6355 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 6356 if (new_bss == NULL) { 6357 if (added) 6358 nl80211_remove_iface(drv, ifidx); 6359 return -1; 6360 } 6361 6362 if (bridge && 6363 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 6364 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 6365 "interface %s to a bridge %s", 6366 ifname, bridge); 6367 if (added) 6368 nl80211_remove_iface(drv, ifidx); 6369 os_free(new_bss); 6370 return -1; 6371 } 6372 6373 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 6374 { 6375 if (added) 6376 nl80211_remove_iface(drv, ifidx); 6377 os_free(new_bss); 6378 return -1; 6379 } 6380 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 6381 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 6382 new_bss->ifindex = ifidx; 6383 new_bss->drv = drv; 6384 new_bss->next = drv->first_bss->next; 6385 new_bss->freq = drv->first_bss->freq; 6386 new_bss->ctx = bss_ctx; 6387 new_bss->added_if = added; 6388 drv->first_bss->next = new_bss; 6389 if (drv_priv) 6390 *drv_priv = new_bss; 6391 nl80211_init_bss(new_bss); 6392 6393 /* Subscribe management frames for this WPA_IF_AP_BSS */ 6394 if (nl80211_setup_ap(new_bss)) 6395 return -1; 6396 } 6397 6398 if (drv->global) 6399 drv->global->if_add_ifindex = ifidx; 6400 6401 /* 6402 * Some virtual interfaces need to process EAPOL packets and events on 6403 * the parent interface. This is used mainly with hostapd. 6404 */ 6405 if (ifidx > 0 && 6406 (drv->hostapd || 6407 nlmode == NL80211_IFTYPE_AP_VLAN || 6408 nlmode == NL80211_IFTYPE_WDS || 6409 nlmode == NL80211_IFTYPE_MONITOR)) 6410 add_ifidx(drv, ifidx, IFIDX_ANY); 6411 6412 return 0; 6413 } 6414 6415 6416 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 6417 enum wpa_driver_if_type type, 6418 const char *ifname) 6419 { 6420 struct wpa_driver_nl80211_data *drv = bss->drv; 6421 int ifindex = if_nametoindex(ifname); 6422 6423 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 6424 __func__, type, ifname, ifindex, bss->added_if); 6425 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 6426 nl80211_remove_iface(drv, ifindex); 6427 else if (ifindex > 0 && !bss->added_if) { 6428 struct wpa_driver_nl80211_data *drv2; 6429 dl_list_for_each(drv2, &drv->global->interfaces, 6430 struct wpa_driver_nl80211_data, list) { 6431 del_ifidx(drv2, ifindex, IFIDX_ANY); 6432 del_ifidx(drv2, IFIDX_ANY, ifindex); 6433 } 6434 } 6435 6436 if (type != WPA_IF_AP_BSS) 6437 return 0; 6438 6439 if (bss->added_if_into_bridge) { 6440 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 6441 bss->ifname) < 0) 6442 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 6443 "interface %s from bridge %s: %s", 6444 bss->ifname, bss->brname, strerror(errno)); 6445 } 6446 if (bss->added_bridge) { 6447 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 6448 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 6449 "bridge %s: %s", 6450 bss->brname, strerror(errno)); 6451 } 6452 6453 if (bss != drv->first_bss) { 6454 struct i802_bss *tbss; 6455 6456 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 6457 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 6458 if (tbss->next == bss) { 6459 tbss->next = bss->next; 6460 /* Unsubscribe management frames */ 6461 nl80211_teardown_ap(bss); 6462 nl80211_destroy_bss(bss); 6463 if (!bss->added_if) 6464 i802_set_iface_flags(bss, 0); 6465 os_free(bss); 6466 bss = NULL; 6467 break; 6468 } 6469 } 6470 if (bss) 6471 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 6472 "BSS %p in the list", __func__, bss); 6473 } else { 6474 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 6475 nl80211_teardown_ap(bss); 6476 if (!bss->added_if && !drv->first_bss->next) 6477 wpa_driver_nl80211_del_beacon(drv); 6478 nl80211_destroy_bss(bss); 6479 if (!bss->added_if) 6480 i802_set_iface_flags(bss, 0); 6481 if (drv->first_bss->next) { 6482 drv->first_bss = drv->first_bss->next; 6483 drv->ctx = drv->first_bss->ctx; 6484 os_free(bss); 6485 } else { 6486 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 6487 } 6488 } 6489 6490 return 0; 6491 } 6492 6493 6494 static int cookie_handler(struct nl_msg *msg, void *arg) 6495 { 6496 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6497 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6498 u64 *cookie = arg; 6499 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6500 genlmsg_attrlen(gnlh, 0), NULL); 6501 if (tb[NL80211_ATTR_COOKIE]) 6502 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 6503 return NL_SKIP; 6504 } 6505 6506 6507 static int nl80211_send_frame_cmd(struct i802_bss *bss, 6508 unsigned int freq, unsigned int wait, 6509 const u8 *buf, size_t buf_len, 6510 u64 *cookie_out, int no_cck, int no_ack, 6511 int offchanok, const u16 *csa_offs, 6512 size_t csa_offs_len) 6513 { 6514 struct wpa_driver_nl80211_data *drv = bss->drv; 6515 struct nl_msg *msg; 6516 u64 cookie; 6517 int ret = -1; 6518 6519 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 6520 "no_ack=%d offchanok=%d", 6521 freq, wait, no_cck, no_ack, offchanok); 6522 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 6523 6524 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) || 6525 (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || 6526 (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) || 6527 (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 6528 drv->test_use_roc_tx) && 6529 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) || 6530 (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) || 6531 (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) || 6532 (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX, 6533 csa_offs_len * sizeof(u16), csa_offs)) || 6534 nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf)) 6535 goto fail; 6536 6537 cookie = 0; 6538 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 6539 msg = NULL; 6540 if (ret) { 6541 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 6542 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 6543 freq, wait); 6544 } else { 6545 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 6546 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 6547 (long long unsigned int) cookie); 6548 6549 if (cookie_out) 6550 *cookie_out = no_ack ? (u64) -1 : cookie; 6551 6552 if (drv->num_send_action_cookies == MAX_SEND_ACTION_COOKIES) { 6553 wpa_printf(MSG_DEBUG, 6554 "nl80211: Drop oldest pending send action cookie 0x%llx", 6555 (long long unsigned int) 6556 drv->send_action_cookies[0]); 6557 os_memmove(&drv->send_action_cookies[0], 6558 &drv->send_action_cookies[1], 6559 (MAX_SEND_ACTION_COOKIES - 1) * 6560 sizeof(u64)); 6561 drv->num_send_action_cookies--; 6562 } 6563 drv->send_action_cookies[drv->num_send_action_cookies] = cookie; 6564 drv->num_send_action_cookies++; 6565 } 6566 6567 fail: 6568 nlmsg_free(msg); 6569 return ret; 6570 } 6571 6572 6573 static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 6574 unsigned int freq, 6575 unsigned int wait_time, 6576 const u8 *dst, const u8 *src, 6577 const u8 *bssid, 6578 const u8 *data, size_t data_len, 6579 int no_cck) 6580 { 6581 struct wpa_driver_nl80211_data *drv = bss->drv; 6582 int ret = -1; 6583 u8 *buf; 6584 struct ieee80211_hdr *hdr; 6585 6586 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 6587 "freq=%u MHz wait=%d ms no_cck=%d)", 6588 drv->ifindex, freq, wait_time, no_cck); 6589 6590 buf = os_zalloc(24 + data_len); 6591 if (buf == NULL) 6592 return ret; 6593 os_memcpy(buf + 24, data, data_len); 6594 hdr = (struct ieee80211_hdr *) buf; 6595 hdr->frame_control = 6596 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 6597 os_memcpy(hdr->addr1, dst, ETH_ALEN); 6598 os_memcpy(hdr->addr2, src, ETH_ALEN); 6599 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 6600 6601 if (is_ap_interface(drv->nlmode) && 6602 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 6603 (int) freq == bss->freq || drv->device_ap_sme || 6604 !drv->use_monitor)) 6605 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 6606 0, freq, no_cck, 1, 6607 wait_time, NULL, 0); 6608 else 6609 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 6610 24 + data_len, 6611 &drv->send_action_cookie, 6612 no_cck, 0, 1, NULL, 0); 6613 6614 os_free(buf); 6615 return ret; 6616 } 6617 6618 6619 static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie) 6620 { 6621 struct wpa_driver_nl80211_data *drv = bss->drv; 6622 struct nl_msg *msg; 6623 int ret; 6624 6625 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 6626 (long long unsigned int) cookie); 6627 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) || 6628 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) { 6629 nlmsg_free(msg); 6630 return; 6631 } 6632 6633 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6634 if (ret) 6635 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 6636 "(%s)", ret, strerror(-ret)); 6637 } 6638 6639 6640 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 6641 { 6642 struct i802_bss *bss = priv; 6643 struct wpa_driver_nl80211_data *drv = bss->drv; 6644 unsigned int i; 6645 u64 cookie; 6646 6647 /* Cancel the last pending TX cookie */ 6648 nl80211_frame_wait_cancel(bss, drv->send_action_cookie); 6649 6650 /* 6651 * Cancel the other pending TX cookies, if any. This is needed since 6652 * the driver may keep a list of all pending offchannel TX operations 6653 * and free up the radio only once they have expired or cancelled. 6654 */ 6655 for (i = drv->num_send_action_cookies; i > 0; i--) { 6656 cookie = drv->send_action_cookies[i - 1]; 6657 if (cookie != drv->send_action_cookie) 6658 nl80211_frame_wait_cancel(bss, cookie); 6659 } 6660 drv->num_send_action_cookies = 0; 6661 } 6662 6663 6664 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 6665 unsigned int duration) 6666 { 6667 struct i802_bss *bss = priv; 6668 struct wpa_driver_nl80211_data *drv = bss->drv; 6669 struct nl_msg *msg; 6670 int ret; 6671 u64 cookie; 6672 6673 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) || 6674 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || 6675 nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) { 6676 nlmsg_free(msg); 6677 return -1; 6678 } 6679 6680 cookie = 0; 6681 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 6682 if (ret == 0) { 6683 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 6684 "0x%llx for freq=%u MHz duration=%u", 6685 (long long unsigned int) cookie, freq, duration); 6686 drv->remain_on_chan_cookie = cookie; 6687 drv->pending_remain_on_chan = 1; 6688 return 0; 6689 } 6690 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 6691 "(freq=%d duration=%u): %d (%s)", 6692 freq, duration, ret, strerror(-ret)); 6693 return -1; 6694 } 6695 6696 6697 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 6698 { 6699 struct i802_bss *bss = priv; 6700 struct wpa_driver_nl80211_data *drv = bss->drv; 6701 struct nl_msg *msg; 6702 int ret; 6703 6704 if (!drv->pending_remain_on_chan) { 6705 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 6706 "to cancel"); 6707 return -1; 6708 } 6709 6710 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 6711 "0x%llx", 6712 (long long unsigned int) drv->remain_on_chan_cookie); 6713 6714 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 6715 if (!msg || 6716 nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) { 6717 nlmsg_free(msg); 6718 return -1; 6719 } 6720 6721 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6722 if (ret == 0) 6723 return 0; 6724 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 6725 "%d (%s)", ret, strerror(-ret)); 6726 return -1; 6727 } 6728 6729 6730 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 6731 { 6732 struct wpa_driver_nl80211_data *drv = bss->drv; 6733 6734 if (!report) { 6735 if (bss->nl_preq && drv->device_ap_sme && 6736 is_ap_interface(drv->nlmode) && !bss->in_deinit && 6737 !bss->static_ap) { 6738 /* 6739 * Do not disable Probe Request reporting that was 6740 * enabled in nl80211_setup_ap(). 6741 */ 6742 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 6743 "Probe Request reporting nl_preq=%p while " 6744 "in AP mode", bss->nl_preq); 6745 } else if (bss->nl_preq) { 6746 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 6747 "reporting nl_preq=%p", bss->nl_preq); 6748 nl80211_destroy_eloop_handle(&bss->nl_preq); 6749 } 6750 return 0; 6751 } 6752 6753 if (bss->nl_preq) { 6754 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 6755 "already on! nl_preq=%p", bss->nl_preq); 6756 return 0; 6757 } 6758 6759 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 6760 if (bss->nl_preq == NULL) 6761 return -1; 6762 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 6763 "reporting nl_preq=%p", bss->nl_preq); 6764 6765 if (nl80211_register_frame(bss, bss->nl_preq, 6766 (WLAN_FC_TYPE_MGMT << 2) | 6767 (WLAN_FC_STYPE_PROBE_REQ << 4), 6768 NULL, 0) < 0) 6769 goto out_err; 6770 6771 nl80211_register_eloop_read(&bss->nl_preq, 6772 wpa_driver_nl80211_event_receive, 6773 bss->nl_cb); 6774 6775 return 0; 6776 6777 out_err: 6778 nl_destroy_handles(&bss->nl_preq); 6779 return -1; 6780 } 6781 6782 6783 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 6784 int ifindex, int disabled) 6785 { 6786 struct nl_msg *msg; 6787 struct nlattr *bands, *band; 6788 int ret; 6789 6790 wpa_printf(MSG_DEBUG, 6791 "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)", 6792 ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" : 6793 "no NL80211_TXRATE_LEGACY constraint"); 6794 6795 msg = nl80211_ifindex_msg(drv, ifindex, 0, 6796 NL80211_CMD_SET_TX_BITRATE_MASK); 6797 if (!msg) 6798 return -1; 6799 6800 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 6801 if (!bands) 6802 goto fail; 6803 6804 /* 6805 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 6806 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 6807 * rates. All 5 GHz rates are left enabled. 6808 */ 6809 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 6810 if (!band || 6811 (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8, 6812 "\x0c\x12\x18\x24\x30\x48\x60\x6c"))) 6813 goto fail; 6814 nla_nest_end(msg, band); 6815 6816 nla_nest_end(msg, bands); 6817 6818 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6819 if (ret) { 6820 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 6821 "(%s)", ret, strerror(-ret)); 6822 } else 6823 drv->disabled_11b_rates = disabled; 6824 6825 return ret; 6826 6827 fail: 6828 nlmsg_free(msg); 6829 return -1; 6830 } 6831 6832 6833 static int wpa_driver_nl80211_deinit_ap(void *priv) 6834 { 6835 struct i802_bss *bss = priv; 6836 struct wpa_driver_nl80211_data *drv = bss->drv; 6837 if (!is_ap_interface(drv->nlmode)) 6838 return -1; 6839 wpa_driver_nl80211_del_beacon(drv); 6840 bss->beacon_set = 0; 6841 6842 /* 6843 * If the P2P GO interface was dynamically added, then it is 6844 * possible that the interface change to station is not possible. 6845 */ 6846 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 6847 return 0; 6848 6849 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 6850 } 6851 6852 6853 static int wpa_driver_nl80211_stop_ap(void *priv) 6854 { 6855 struct i802_bss *bss = priv; 6856 struct wpa_driver_nl80211_data *drv = bss->drv; 6857 if (!is_ap_interface(drv->nlmode)) 6858 return -1; 6859 wpa_driver_nl80211_del_beacon(drv); 6860 bss->beacon_set = 0; 6861 return 0; 6862 } 6863 6864 6865 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 6866 { 6867 struct i802_bss *bss = priv; 6868 struct wpa_driver_nl80211_data *drv = bss->drv; 6869 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 6870 return -1; 6871 6872 /* 6873 * If the P2P Client interface was dynamically added, then it is 6874 * possible that the interface change to station is not possible. 6875 */ 6876 if (bss->if_dynamic) 6877 return 0; 6878 6879 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 6880 } 6881 6882 6883 static void wpa_driver_nl80211_resume(void *priv) 6884 { 6885 struct i802_bss *bss = priv; 6886 enum nl80211_iftype nlmode = nl80211_get_ifmode(bss); 6887 6888 if (i802_set_iface_flags(bss, 1)) 6889 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 6890 6891 if (is_p2p_net_interface(nlmode)) 6892 nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1); 6893 } 6894 6895 6896 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 6897 { 6898 struct i802_bss *bss = priv; 6899 struct wpa_driver_nl80211_data *drv = bss->drv; 6900 struct nl_msg *msg; 6901 struct nlattr *cqm; 6902 6903 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 6904 "hysteresis=%d", threshold, hysteresis); 6905 6906 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) || 6907 !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) || 6908 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) || 6909 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) { 6910 nlmsg_free(msg); 6911 return -1; 6912 } 6913 nla_nest_end(msg, cqm); 6914 6915 return send_and_recv_msgs(drv, msg, NULL, NULL); 6916 } 6917 6918 6919 static int get_channel_width(struct nl_msg *msg, void *arg) 6920 { 6921 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6922 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6923 struct wpa_signal_info *sig_change = arg; 6924 6925 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6926 genlmsg_attrlen(gnlh, 0), NULL); 6927 6928 sig_change->center_frq1 = -1; 6929 sig_change->center_frq2 = -1; 6930 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 6931 6932 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 6933 sig_change->chanwidth = convert2width( 6934 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 6935 if (tb[NL80211_ATTR_CENTER_FREQ1]) 6936 sig_change->center_frq1 = 6937 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 6938 if (tb[NL80211_ATTR_CENTER_FREQ2]) 6939 sig_change->center_frq2 = 6940 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 6941 } 6942 6943 return NL_SKIP; 6944 } 6945 6946 6947 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 6948 struct wpa_signal_info *sig) 6949 { 6950 struct nl_msg *msg; 6951 6952 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE); 6953 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 6954 } 6955 6956 6957 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 6958 { 6959 struct i802_bss *bss = priv; 6960 struct wpa_driver_nl80211_data *drv = bss->drv; 6961 int res; 6962 6963 os_memset(si, 0, sizeof(*si)); 6964 res = nl80211_get_link_signal(drv, si); 6965 if (res) { 6966 if (drv->nlmode != NL80211_IFTYPE_ADHOC && 6967 drv->nlmode != NL80211_IFTYPE_MESH_POINT) 6968 return res; 6969 si->current_signal = 0; 6970 } 6971 6972 res = nl80211_get_channel_width(drv, si); 6973 if (res != 0) 6974 return res; 6975 6976 return nl80211_get_link_noise(drv, si); 6977 } 6978 6979 6980 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 6981 int encrypt) 6982 { 6983 struct i802_bss *bss = priv; 6984 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 6985 0, 0, 0, 0, NULL, 0); 6986 } 6987 6988 6989 static int nl80211_set_param(void *priv, const char *param) 6990 { 6991 struct i802_bss *bss = priv; 6992 struct wpa_driver_nl80211_data *drv = bss->drv; 6993 6994 if (param == NULL) 6995 return 0; 6996 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 6997 6998 #ifdef CONFIG_P2P 6999 if (os_strstr(param, "use_p2p_group_interface=1")) { 7000 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 7001 "interface"); 7002 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 7003 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 7004 } 7005 #endif /* CONFIG_P2P */ 7006 7007 if (os_strstr(param, "use_monitor=1")) 7008 drv->use_monitor = 1; 7009 7010 if (os_strstr(param, "force_connect_cmd=1")) { 7011 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 7012 drv->force_connect_cmd = 1; 7013 } 7014 7015 if (os_strstr(param, "force_bss_selection=1")) 7016 drv->capa.flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 7017 7018 if (os_strstr(param, "no_offchannel_tx=1")) { 7019 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 7020 drv->test_use_roc_tx = 1; 7021 } 7022 7023 return 0; 7024 } 7025 7026 7027 static void * nl80211_global_init(void *ctx) 7028 { 7029 struct nl80211_global *global; 7030 struct netlink_config *cfg; 7031 7032 global = os_zalloc(sizeof(*global)); 7033 if (global == NULL) 7034 return NULL; 7035 global->ctx = ctx; 7036 global->ioctl_sock = -1; 7037 dl_list_init(&global->interfaces); 7038 global->if_add_ifindex = -1; 7039 7040 cfg = os_zalloc(sizeof(*cfg)); 7041 if (cfg == NULL) 7042 goto err; 7043 7044 cfg->ctx = global; 7045 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 7046 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 7047 global->netlink = netlink_init(cfg); 7048 if (global->netlink == NULL) { 7049 os_free(cfg); 7050 goto err; 7051 } 7052 7053 if (wpa_driver_nl80211_init_nl_global(global) < 0) 7054 goto err; 7055 7056 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 7057 if (global->ioctl_sock < 0) { 7058 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 7059 strerror(errno)); 7060 goto err; 7061 } 7062 7063 return global; 7064 7065 err: 7066 nl80211_global_deinit(global); 7067 return NULL; 7068 } 7069 7070 7071 static void nl80211_global_deinit(void *priv) 7072 { 7073 struct nl80211_global *global = priv; 7074 if (global == NULL) 7075 return; 7076 if (!dl_list_empty(&global->interfaces)) { 7077 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 7078 "nl80211_global_deinit", 7079 dl_list_len(&global->interfaces)); 7080 } 7081 7082 if (global->netlink) 7083 netlink_deinit(global->netlink); 7084 7085 nl_destroy_handles(&global->nl); 7086 7087 if (global->nl_event) 7088 nl80211_destroy_eloop_handle(&global->nl_event); 7089 7090 nl_cb_put(global->nl_cb); 7091 7092 if (global->ioctl_sock >= 0) 7093 close(global->ioctl_sock); 7094 7095 os_free(global); 7096 } 7097 7098 7099 static const char * nl80211_get_radio_name(void *priv) 7100 { 7101 struct i802_bss *bss = priv; 7102 struct wpa_driver_nl80211_data *drv = bss->drv; 7103 return drv->phyname; 7104 } 7105 7106 7107 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 7108 const u8 *pmkid) 7109 { 7110 struct nl_msg *msg; 7111 7112 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || 7113 (pmkid && nla_put(msg, NL80211_ATTR_PMKID, 16, pmkid)) || 7114 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))) { 7115 nlmsg_free(msg); 7116 return -ENOBUFS; 7117 } 7118 7119 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 7120 } 7121 7122 7123 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 7124 { 7125 struct i802_bss *bss = priv; 7126 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 7127 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 7128 } 7129 7130 7131 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 7132 { 7133 struct i802_bss *bss = priv; 7134 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 7135 MAC2STR(bssid)); 7136 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 7137 } 7138 7139 7140 static int nl80211_flush_pmkid(void *priv) 7141 { 7142 struct i802_bss *bss = priv; 7143 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 7144 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 7145 } 7146 7147 7148 static void clean_survey_results(struct survey_results *survey_results) 7149 { 7150 struct freq_survey *survey, *tmp; 7151 7152 if (dl_list_empty(&survey_results->survey_list)) 7153 return; 7154 7155 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 7156 struct freq_survey, list) { 7157 dl_list_del(&survey->list); 7158 os_free(survey); 7159 } 7160 } 7161 7162 7163 static void add_survey(struct nlattr **sinfo, u32 ifidx, 7164 struct dl_list *survey_list) 7165 { 7166 struct freq_survey *survey; 7167 7168 survey = os_zalloc(sizeof(struct freq_survey)); 7169 if (!survey) 7170 return; 7171 7172 survey->ifidx = ifidx; 7173 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 7174 survey->filled = 0; 7175 7176 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 7177 survey->nf = (int8_t) 7178 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 7179 survey->filled |= SURVEY_HAS_NF; 7180 } 7181 7182 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 7183 survey->channel_time = 7184 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 7185 survey->filled |= SURVEY_HAS_CHAN_TIME; 7186 } 7187 7188 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 7189 survey->channel_time_busy = 7190 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 7191 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 7192 } 7193 7194 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 7195 survey->channel_time_rx = 7196 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 7197 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 7198 } 7199 7200 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 7201 survey->channel_time_tx = 7202 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 7203 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 7204 } 7205 7206 wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)", 7207 survey->freq, 7208 survey->nf, 7209 (unsigned long int) survey->channel_time, 7210 (unsigned long int) survey->channel_time_busy, 7211 (unsigned long int) survey->channel_time_tx, 7212 (unsigned long int) survey->channel_time_rx, 7213 survey->filled); 7214 7215 dl_list_add_tail(survey_list, &survey->list); 7216 } 7217 7218 7219 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 7220 unsigned int freq_filter) 7221 { 7222 if (!freq_filter) 7223 return 1; 7224 7225 return freq_filter == surveyed_freq; 7226 } 7227 7228 7229 static int survey_handler(struct nl_msg *msg, void *arg) 7230 { 7231 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7232 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7233 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 7234 struct survey_results *survey_results; 7235 u32 surveyed_freq = 0; 7236 u32 ifidx; 7237 7238 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 7239 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 7240 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 7241 }; 7242 7243 survey_results = (struct survey_results *) arg; 7244 7245 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7246 genlmsg_attrlen(gnlh, 0), NULL); 7247 7248 if (!tb[NL80211_ATTR_IFINDEX]) 7249 return NL_SKIP; 7250 7251 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 7252 7253 if (!tb[NL80211_ATTR_SURVEY_INFO]) 7254 return NL_SKIP; 7255 7256 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 7257 tb[NL80211_ATTR_SURVEY_INFO], 7258 survey_policy)) 7259 return NL_SKIP; 7260 7261 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 7262 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 7263 return NL_SKIP; 7264 } 7265 7266 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 7267 7268 if (!check_survey_ok(sinfo, surveyed_freq, 7269 survey_results->freq_filter)) 7270 return NL_SKIP; 7271 7272 if (survey_results->freq_filter && 7273 survey_results->freq_filter != surveyed_freq) { 7274 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 7275 surveyed_freq); 7276 return NL_SKIP; 7277 } 7278 7279 add_survey(sinfo, ifidx, &survey_results->survey_list); 7280 7281 return NL_SKIP; 7282 } 7283 7284 7285 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 7286 { 7287 struct i802_bss *bss = priv; 7288 struct wpa_driver_nl80211_data *drv = bss->drv; 7289 struct nl_msg *msg; 7290 int err; 7291 union wpa_event_data data; 7292 struct survey_results *survey_results; 7293 7294 os_memset(&data, 0, sizeof(data)); 7295 survey_results = &data.survey_results; 7296 7297 dl_list_init(&survey_results->survey_list); 7298 7299 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 7300 if (!msg) 7301 return -ENOBUFS; 7302 7303 if (freq) 7304 data.survey_results.freq_filter = freq; 7305 7306 do { 7307 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 7308 err = send_and_recv_msgs(drv, msg, survey_handler, 7309 survey_results); 7310 } while (err > 0); 7311 7312 if (err) 7313 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 7314 else 7315 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 7316 7317 clean_survey_results(survey_results); 7318 return err; 7319 } 7320 7321 7322 static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len, 7323 const u8 *kck, size_t kck_len, 7324 const u8 *replay_ctr) 7325 { 7326 struct i802_bss *bss = priv; 7327 struct wpa_driver_nl80211_data *drv = bss->drv; 7328 struct nlattr *replay_nested; 7329 struct nl_msg *msg; 7330 int ret; 7331 7332 if (!drv->set_rekey_offload) 7333 return; 7334 7335 wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload"); 7336 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) || 7337 !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) || 7338 nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) || 7339 nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck) || 7340 nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 7341 replay_ctr)) { 7342 nl80211_nlmsg_clear(msg); 7343 nlmsg_free(msg); 7344 return; 7345 } 7346 7347 nla_nest_end(msg, replay_nested); 7348 7349 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1); 7350 if (ret == -EOPNOTSUPP) { 7351 wpa_printf(MSG_DEBUG, 7352 "nl80211: Driver does not support rekey offload"); 7353 drv->set_rekey_offload = 0; 7354 } 7355 } 7356 7357 7358 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 7359 const u8 *addr, int qos) 7360 { 7361 /* send data frame to poll STA and check whether 7362 * this frame is ACKed */ 7363 struct { 7364 struct ieee80211_hdr hdr; 7365 u16 qos_ctl; 7366 } STRUCT_PACKED nulldata; 7367 size_t size; 7368 7369 /* Send data frame to poll STA and check whether this frame is ACKed */ 7370 7371 os_memset(&nulldata, 0, sizeof(nulldata)); 7372 7373 if (qos) { 7374 nulldata.hdr.frame_control = 7375 IEEE80211_FC(WLAN_FC_TYPE_DATA, 7376 WLAN_FC_STYPE_QOS_NULL); 7377 size = sizeof(nulldata); 7378 } else { 7379 nulldata.hdr.frame_control = 7380 IEEE80211_FC(WLAN_FC_TYPE_DATA, 7381 WLAN_FC_STYPE_NULLFUNC); 7382 size = sizeof(struct ieee80211_hdr); 7383 } 7384 7385 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 7386 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7387 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7388 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7389 7390 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 7391 0, 0, NULL, 0) < 0) 7392 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 7393 "send poll frame"); 7394 } 7395 7396 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 7397 int qos) 7398 { 7399 struct i802_bss *bss = priv; 7400 struct wpa_driver_nl80211_data *drv = bss->drv; 7401 struct nl_msg *msg; 7402 int ret; 7403 7404 if (!drv->poll_command_supported) { 7405 nl80211_send_null_frame(bss, own_addr, addr, qos); 7406 return; 7407 } 7408 7409 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) || 7410 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 7411 nlmsg_free(msg); 7412 return; 7413 } 7414 7415 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7416 if (ret < 0) { 7417 wpa_printf(MSG_DEBUG, "nl80211: Client probe request for " 7418 MACSTR " failed: ret=%d (%s)", 7419 MAC2STR(addr), ret, strerror(-ret)); 7420 } 7421 } 7422 7423 7424 static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 7425 { 7426 struct nl_msg *msg; 7427 7428 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) || 7429 nla_put_u32(msg, NL80211_ATTR_PS_STATE, 7430 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) { 7431 nlmsg_free(msg); 7432 return -ENOBUFS; 7433 } 7434 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 7435 } 7436 7437 7438 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 7439 int ctwindow) 7440 { 7441 struct i802_bss *bss = priv; 7442 7443 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 7444 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 7445 7446 if (opp_ps != -1 || ctwindow != -1) { 7447 #ifdef ANDROID_P2P 7448 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 7449 #else /* ANDROID_P2P */ 7450 return -1; /* Not yet supported */ 7451 #endif /* ANDROID_P2P */ 7452 } 7453 7454 if (legacy_ps == -1) 7455 return 0; 7456 if (legacy_ps != 0 && legacy_ps != 1) 7457 return -1; /* Not yet supported */ 7458 7459 return nl80211_set_power_save(bss, legacy_ps); 7460 } 7461 7462 7463 static int nl80211_start_radar_detection(void *priv, 7464 struct hostapd_freq_params *freq) 7465 { 7466 struct i802_bss *bss = priv; 7467 struct wpa_driver_nl80211_data *drv = bss->drv; 7468 struct nl_msg *msg; 7469 int ret; 7470 7471 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 7472 freq->freq, freq->ht_enabled, freq->vht_enabled, 7473 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7474 7475 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 7476 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 7477 "detection"); 7478 return -1; 7479 } 7480 7481 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) || 7482 nl80211_put_freq_params(msg, freq) < 0) { 7483 nlmsg_free(msg); 7484 return -1; 7485 } 7486 7487 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7488 if (ret == 0) 7489 return 0; 7490 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 7491 "%d (%s)", ret, strerror(-ret)); 7492 return -1; 7493 } 7494 7495 #ifdef CONFIG_TDLS 7496 7497 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 7498 u8 dialog_token, u16 status_code, 7499 u32 peer_capab, int initiator, const u8 *buf, 7500 size_t len) 7501 { 7502 struct i802_bss *bss = priv; 7503 struct wpa_driver_nl80211_data *drv = bss->drv; 7504 struct nl_msg *msg; 7505 7506 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7507 return -EOPNOTSUPP; 7508 7509 if (!dst) 7510 return -EINVAL; 7511 7512 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) || 7513 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || 7514 nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) || 7515 nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) || 7516 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code)) 7517 goto fail; 7518 if (peer_capab) { 7519 /* 7520 * The internal enum tdls_peer_capability definition is 7521 * currently identical with the nl80211 enum 7522 * nl80211_tdls_peer_capability, so no conversion is needed 7523 * here. 7524 */ 7525 if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, 7526 peer_capab)) 7527 goto fail; 7528 } 7529 if ((initiator && 7530 nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) || 7531 nla_put(msg, NL80211_ATTR_IE, len, buf)) 7532 goto fail; 7533 7534 return send_and_recv_msgs(drv, msg, NULL, NULL); 7535 7536 fail: 7537 nlmsg_free(msg); 7538 return -ENOBUFS; 7539 } 7540 7541 7542 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 7543 { 7544 struct i802_bss *bss = priv; 7545 struct wpa_driver_nl80211_data *drv = bss->drv; 7546 struct nl_msg *msg; 7547 enum nl80211_tdls_operation nl80211_oper; 7548 7549 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7550 return -EOPNOTSUPP; 7551 7552 switch (oper) { 7553 case TDLS_DISCOVERY_REQ: 7554 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 7555 break; 7556 case TDLS_SETUP: 7557 nl80211_oper = NL80211_TDLS_SETUP; 7558 break; 7559 case TDLS_TEARDOWN: 7560 nl80211_oper = NL80211_TDLS_TEARDOWN; 7561 break; 7562 case TDLS_ENABLE_LINK: 7563 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 7564 break; 7565 case TDLS_DISABLE_LINK: 7566 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 7567 break; 7568 case TDLS_ENABLE: 7569 return 0; 7570 case TDLS_DISABLE: 7571 return 0; 7572 default: 7573 return -EINVAL; 7574 } 7575 7576 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) || 7577 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) || 7578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) { 7579 nlmsg_free(msg); 7580 return -ENOBUFS; 7581 } 7582 7583 return send_and_recv_msgs(drv, msg, NULL, NULL); 7584 } 7585 7586 7587 static int 7588 nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class, 7589 const struct hostapd_freq_params *params) 7590 { 7591 struct i802_bss *bss = priv; 7592 struct wpa_driver_nl80211_data *drv = bss->drv; 7593 struct nl_msg *msg; 7594 int ret = -ENOBUFS; 7595 7596 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || 7597 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) 7598 return -EOPNOTSUPP; 7599 7600 wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR 7601 " oper_class=%u freq=%u", 7602 MAC2STR(addr), oper_class, params->freq); 7603 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH); 7604 if (!msg || 7605 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 7606 nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) || 7607 (ret = nl80211_put_freq_params(msg, params))) { 7608 nlmsg_free(msg); 7609 wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch"); 7610 return ret; 7611 } 7612 7613 return send_and_recv_msgs(drv, msg, NULL, NULL); 7614 } 7615 7616 7617 static int 7618 nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr) 7619 { 7620 struct i802_bss *bss = priv; 7621 struct wpa_driver_nl80211_data *drv = bss->drv; 7622 struct nl_msg *msg; 7623 7624 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || 7625 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) 7626 return -EOPNOTSUPP; 7627 7628 wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR, 7629 MAC2STR(addr)); 7630 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH); 7631 if (!msg || 7632 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 7633 nlmsg_free(msg); 7634 wpa_printf(MSG_DEBUG, 7635 "nl80211: Could not build TDLS cancel chan switch"); 7636 return -ENOBUFS; 7637 } 7638 7639 return send_and_recv_msgs(drv, msg, NULL, NULL); 7640 } 7641 7642 #endif /* CONFIG TDLS */ 7643 7644 7645 static int driver_nl80211_set_key(const char *ifname, void *priv, 7646 enum wpa_alg alg, const u8 *addr, 7647 int key_idx, int set_tx, 7648 const u8 *seq, size_t seq_len, 7649 const u8 *key, size_t key_len) 7650 { 7651 struct i802_bss *bss = priv; 7652 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 7653 set_tx, seq, seq_len, key, key_len); 7654 } 7655 7656 7657 static int driver_nl80211_scan2(void *priv, 7658 struct wpa_driver_scan_params *params) 7659 { 7660 struct i802_bss *bss = priv; 7661 #ifdef CONFIG_DRIVER_NL80211_QCA 7662 struct wpa_driver_nl80211_data *drv = bss->drv; 7663 7664 /* 7665 * Do a vendor specific scan if possible. If only_new_results is 7666 * set, do a normal scan since a kernel (cfg80211) BSS cache flush 7667 * cannot be achieved through a vendor scan. The below condition may 7668 * need to be modified if new scan flags are added in the future whose 7669 * functionality can only be achieved through a normal scan. 7670 */ 7671 if (drv->scan_vendor_cmd_avail && !params->only_new_results) 7672 return wpa_driver_nl80211_vendor_scan(bss, params); 7673 #endif /* CONFIG_DRIVER_NL80211_QCA */ 7674 return wpa_driver_nl80211_scan(bss, params); 7675 } 7676 7677 7678 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 7679 int reason_code) 7680 { 7681 struct i802_bss *bss = priv; 7682 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 7683 } 7684 7685 7686 static int driver_nl80211_authenticate(void *priv, 7687 struct wpa_driver_auth_params *params) 7688 { 7689 struct i802_bss *bss = priv; 7690 return wpa_driver_nl80211_authenticate(bss, params); 7691 } 7692 7693 7694 static void driver_nl80211_deinit(void *priv) 7695 { 7696 struct i802_bss *bss = priv; 7697 wpa_driver_nl80211_deinit(bss); 7698 } 7699 7700 7701 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 7702 const char *ifname) 7703 { 7704 struct i802_bss *bss = priv; 7705 return wpa_driver_nl80211_if_remove(bss, type, ifname); 7706 } 7707 7708 7709 static int driver_nl80211_send_mlme(void *priv, const u8 *data, 7710 size_t data_len, int noack, 7711 unsigned int freq, 7712 const u16 *csa_offs, size_t csa_offs_len) 7713 { 7714 struct i802_bss *bss = priv; 7715 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 7716 freq, 0, 0, 0, csa_offs, 7717 csa_offs_len); 7718 } 7719 7720 7721 static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 7722 { 7723 struct i802_bss *bss = priv; 7724 return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0); 7725 } 7726 7727 7728 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 7729 const char *ifname, int vlan_id) 7730 { 7731 struct i802_bss *bss = priv; 7732 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 7733 } 7734 7735 7736 static int driver_nl80211_read_sta_data(void *priv, 7737 struct hostap_sta_driver_data *data, 7738 const u8 *addr) 7739 { 7740 struct i802_bss *bss = priv; 7741 return i802_read_sta_data(bss, data, addr); 7742 } 7743 7744 7745 static int driver_nl80211_send_action(void *priv, unsigned int freq, 7746 unsigned int wait_time, 7747 const u8 *dst, const u8 *src, 7748 const u8 *bssid, 7749 const u8 *data, size_t data_len, 7750 int no_cck) 7751 { 7752 struct i802_bss *bss = priv; 7753 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 7754 bssid, data, data_len, no_cck); 7755 } 7756 7757 7758 static int driver_nl80211_probe_req_report(void *priv, int report) 7759 { 7760 struct i802_bss *bss = priv; 7761 return wpa_driver_nl80211_probe_req_report(bss, report); 7762 } 7763 7764 7765 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 7766 const u8 *ies, size_t ies_len) 7767 { 7768 int ret; 7769 struct nl_msg *msg; 7770 struct i802_bss *bss = priv; 7771 struct wpa_driver_nl80211_data *drv = bss->drv; 7772 u16 mdid = WPA_GET_LE16(md); 7773 7774 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 7775 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) || 7776 nla_put(msg, NL80211_ATTR_IE, ies_len, ies) || 7777 nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) { 7778 nlmsg_free(msg); 7779 return -ENOBUFS; 7780 } 7781 7782 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7783 if (ret) { 7784 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 7785 "err=%d (%s)", ret, strerror(-ret)); 7786 } 7787 7788 return ret; 7789 } 7790 7791 7792 static const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 7793 { 7794 struct i802_bss *bss = priv; 7795 struct wpa_driver_nl80211_data *drv = bss->drv; 7796 7797 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 7798 return NULL; 7799 7800 return bss->addr; 7801 } 7802 7803 7804 static const char * scan_state_str(enum scan_states scan_state) 7805 { 7806 switch (scan_state) { 7807 case NO_SCAN: 7808 return "NO_SCAN"; 7809 case SCAN_REQUESTED: 7810 return "SCAN_REQUESTED"; 7811 case SCAN_STARTED: 7812 return "SCAN_STARTED"; 7813 case SCAN_COMPLETED: 7814 return "SCAN_COMPLETED"; 7815 case SCAN_ABORTED: 7816 return "SCAN_ABORTED"; 7817 case SCHED_SCAN_STARTED: 7818 return "SCHED_SCAN_STARTED"; 7819 case SCHED_SCAN_STOPPED: 7820 return "SCHED_SCAN_STOPPED"; 7821 case SCHED_SCAN_RESULTS: 7822 return "SCHED_SCAN_RESULTS"; 7823 } 7824 7825 return "??"; 7826 } 7827 7828 7829 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 7830 { 7831 struct i802_bss *bss = priv; 7832 struct wpa_driver_nl80211_data *drv = bss->drv; 7833 int res; 7834 char *pos, *end; 7835 7836 pos = buf; 7837 end = buf + buflen; 7838 7839 res = os_snprintf(pos, end - pos, 7840 "ifindex=%d\n" 7841 "ifname=%s\n" 7842 "brname=%s\n" 7843 "addr=" MACSTR "\n" 7844 "freq=%d\n" 7845 "%s%s%s%s%s", 7846 bss->ifindex, 7847 bss->ifname, 7848 bss->brname, 7849 MAC2STR(bss->addr), 7850 bss->freq, 7851 bss->beacon_set ? "beacon_set=1\n" : "", 7852 bss->added_if_into_bridge ? 7853 "added_if_into_bridge=1\n" : "", 7854 bss->added_bridge ? "added_bridge=1\n" : "", 7855 bss->in_deinit ? "in_deinit=1\n" : "", 7856 bss->if_dynamic ? "if_dynamic=1\n" : ""); 7857 if (os_snprintf_error(end - pos, res)) 7858 return pos - buf; 7859 pos += res; 7860 7861 if (bss->wdev_id_set) { 7862 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 7863 (unsigned long long) bss->wdev_id); 7864 if (os_snprintf_error(end - pos, res)) 7865 return pos - buf; 7866 pos += res; 7867 } 7868 7869 res = os_snprintf(pos, end - pos, 7870 "phyname=%s\n" 7871 "perm_addr=" MACSTR "\n" 7872 "drv_ifindex=%d\n" 7873 "operstate=%d\n" 7874 "scan_state=%s\n" 7875 "auth_bssid=" MACSTR "\n" 7876 "auth_attempt_bssid=" MACSTR "\n" 7877 "bssid=" MACSTR "\n" 7878 "prev_bssid=" MACSTR "\n" 7879 "associated=%d\n" 7880 "assoc_freq=%u\n" 7881 "monitor_sock=%d\n" 7882 "monitor_ifidx=%d\n" 7883 "monitor_refcount=%d\n" 7884 "last_mgmt_freq=%u\n" 7885 "eapol_tx_sock=%d\n" 7886 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 7887 drv->phyname, 7888 MAC2STR(drv->perm_addr), 7889 drv->ifindex, 7890 drv->operstate, 7891 scan_state_str(drv->scan_state), 7892 MAC2STR(drv->auth_bssid), 7893 MAC2STR(drv->auth_attempt_bssid), 7894 MAC2STR(drv->bssid), 7895 MAC2STR(drv->prev_bssid), 7896 drv->associated, 7897 drv->assoc_freq, 7898 drv->monitor_sock, 7899 drv->monitor_ifidx, 7900 drv->monitor_refcount, 7901 drv->last_mgmt_freq, 7902 drv->eapol_tx_sock, 7903 drv->ignore_if_down_event ? 7904 "ignore_if_down_event=1\n" : "", 7905 drv->scan_complete_events ? 7906 "scan_complete_events=1\n" : "", 7907 drv->disabled_11b_rates ? 7908 "disabled_11b_rates=1\n" : "", 7909 drv->pending_remain_on_chan ? 7910 "pending_remain_on_chan=1\n" : "", 7911 drv->in_interface_list ? "in_interface_list=1\n" : "", 7912 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 7913 drv->poll_command_supported ? 7914 "poll_command_supported=1\n" : "", 7915 drv->data_tx_status ? "data_tx_status=1\n" : "", 7916 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 7917 drv->retry_auth ? "retry_auth=1\n" : "", 7918 drv->use_monitor ? "use_monitor=1\n" : "", 7919 drv->ignore_next_local_disconnect ? 7920 "ignore_next_local_disconnect=1\n" : "", 7921 drv->ignore_next_local_deauth ? 7922 "ignore_next_local_deauth=1\n" : ""); 7923 if (os_snprintf_error(end - pos, res)) 7924 return pos - buf; 7925 pos += res; 7926 7927 if (drv->has_capability) { 7928 res = os_snprintf(pos, end - pos, 7929 "capa.key_mgmt=0x%x\n" 7930 "capa.enc=0x%x\n" 7931 "capa.auth=0x%x\n" 7932 "capa.flags=0x%llx\n" 7933 "capa.rrm_flags=0x%x\n" 7934 "capa.max_scan_ssids=%d\n" 7935 "capa.max_sched_scan_ssids=%d\n" 7936 "capa.sched_scan_supported=%d\n" 7937 "capa.max_match_sets=%d\n" 7938 "capa.max_remain_on_chan=%u\n" 7939 "capa.max_stations=%u\n" 7940 "capa.probe_resp_offloads=0x%x\n" 7941 "capa.max_acl_mac_addrs=%u\n" 7942 "capa.num_multichan_concurrent=%u\n" 7943 "capa.mac_addr_rand_sched_scan_supported=%d\n" 7944 "capa.mac_addr_rand_scan_supported=%d\n" 7945 "capa.conc_capab=%u\n" 7946 "capa.max_conc_chan_2_4=%u\n" 7947 "capa.max_conc_chan_5_0=%u\n" 7948 "capa.max_sched_scan_plans=%u\n" 7949 "capa.max_sched_scan_plan_interval=%u\n" 7950 "capa.max_sched_scan_plan_iterations=%u\n", 7951 drv->capa.key_mgmt, 7952 drv->capa.enc, 7953 drv->capa.auth, 7954 (unsigned long long) drv->capa.flags, 7955 drv->capa.rrm_flags, 7956 drv->capa.max_scan_ssids, 7957 drv->capa.max_sched_scan_ssids, 7958 drv->capa.sched_scan_supported, 7959 drv->capa.max_match_sets, 7960 drv->capa.max_remain_on_chan, 7961 drv->capa.max_stations, 7962 drv->capa.probe_resp_offloads, 7963 drv->capa.max_acl_mac_addrs, 7964 drv->capa.num_multichan_concurrent, 7965 drv->capa.mac_addr_rand_sched_scan_supported, 7966 drv->capa.mac_addr_rand_scan_supported, 7967 drv->capa.conc_capab, 7968 drv->capa.max_conc_chan_2_4, 7969 drv->capa.max_conc_chan_5_0, 7970 drv->capa.max_sched_scan_plans, 7971 drv->capa.max_sched_scan_plan_interval, 7972 drv->capa.max_sched_scan_plan_iterations); 7973 if (os_snprintf_error(end - pos, res)) 7974 return pos - buf; 7975 pos += res; 7976 } 7977 7978 return pos - buf; 7979 } 7980 7981 7982 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 7983 { 7984 if ((settings->head && 7985 nla_put(msg, NL80211_ATTR_BEACON_HEAD, 7986 settings->head_len, settings->head)) || 7987 (settings->tail && 7988 nla_put(msg, NL80211_ATTR_BEACON_TAIL, 7989 settings->tail_len, settings->tail)) || 7990 (settings->beacon_ies && 7991 nla_put(msg, NL80211_ATTR_IE, 7992 settings->beacon_ies_len, settings->beacon_ies)) || 7993 (settings->proberesp_ies && 7994 nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, 7995 settings->proberesp_ies_len, settings->proberesp_ies)) || 7996 (settings->assocresp_ies && 7997 nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, 7998 settings->assocresp_ies_len, settings->assocresp_ies)) || 7999 (settings->probe_resp && 8000 nla_put(msg, NL80211_ATTR_PROBE_RESP, 8001 settings->probe_resp_len, settings->probe_resp))) 8002 return -ENOBUFS; 8003 8004 return 0; 8005 } 8006 8007 8008 static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 8009 { 8010 struct nl_msg *msg; 8011 struct i802_bss *bss = priv; 8012 struct wpa_driver_nl80211_data *drv = bss->drv; 8013 struct nlattr *beacon_csa; 8014 int ret = -ENOBUFS; 8015 int csa_off_len = 0; 8016 int i; 8017 8018 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 8019 settings->cs_count, settings->block_tx, 8020 settings->freq_params.freq, settings->freq_params.bandwidth, 8021 settings->freq_params.center_freq1, 8022 settings->freq_params.center_freq2); 8023 8024 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 8025 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 8026 return -EOPNOTSUPP; 8027 } 8028 8029 if ((drv->nlmode != NL80211_IFTYPE_AP) && 8030 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 8031 return -EOPNOTSUPP; 8032 8033 /* 8034 * Remove empty counters, assuming Probe Response and Beacon frame 8035 * counters match. This implementation assumes that there are only two 8036 * counters. 8037 */ 8038 if (settings->counter_offset_beacon[0] && 8039 !settings->counter_offset_beacon[1]) { 8040 csa_off_len = 1; 8041 } else if (settings->counter_offset_beacon[1] && 8042 !settings->counter_offset_beacon[0]) { 8043 csa_off_len = 1; 8044 settings->counter_offset_beacon[0] = 8045 settings->counter_offset_beacon[1]; 8046 settings->counter_offset_presp[0] = 8047 settings->counter_offset_presp[1]; 8048 } else if (settings->counter_offset_beacon[1] && 8049 settings->counter_offset_beacon[0]) { 8050 csa_off_len = 2; 8051 } else { 8052 wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided"); 8053 return -EINVAL; 8054 } 8055 8056 /* Check CSA counters validity */ 8057 if (drv->capa.max_csa_counters && 8058 csa_off_len > drv->capa.max_csa_counters) { 8059 wpa_printf(MSG_ERROR, 8060 "nl80211: Too many CSA counters provided"); 8061 return -EINVAL; 8062 } 8063 8064 if (!settings->beacon_csa.tail) 8065 return -EINVAL; 8066 8067 for (i = 0; i < csa_off_len; i++) { 8068 u16 csa_c_off_bcn = settings->counter_offset_beacon[i]; 8069 u16 csa_c_off_presp = settings->counter_offset_presp[i]; 8070 8071 if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) || 8072 (settings->beacon_csa.tail[csa_c_off_bcn] != 8073 settings->cs_count)) 8074 return -EINVAL; 8075 8076 if (settings->beacon_csa.probe_resp && 8077 ((settings->beacon_csa.probe_resp_len <= 8078 csa_c_off_presp) || 8079 (settings->beacon_csa.probe_resp[csa_c_off_presp] != 8080 settings->cs_count))) 8081 return -EINVAL; 8082 } 8083 8084 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) || 8085 nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, 8086 settings->cs_count) || 8087 (ret = nl80211_put_freq_params(msg, &settings->freq_params)) || 8088 (settings->block_tx && 8089 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX))) 8090 goto error; 8091 8092 /* beacon_after params */ 8093 ret = set_beacon_data(msg, &settings->beacon_after); 8094 if (ret) 8095 goto error; 8096 8097 /* beacon_csa params */ 8098 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 8099 if (!beacon_csa) 8100 goto fail; 8101 8102 ret = set_beacon_data(msg, &settings->beacon_csa); 8103 if (ret) 8104 goto error; 8105 8106 if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 8107 csa_off_len * sizeof(u16), 8108 settings->counter_offset_beacon) || 8109 (settings->beacon_csa.probe_resp && 8110 nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 8111 csa_off_len * sizeof(u16), 8112 settings->counter_offset_presp))) 8113 goto fail; 8114 8115 nla_nest_end(msg, beacon_csa); 8116 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8117 if (ret) { 8118 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 8119 ret, strerror(-ret)); 8120 } 8121 return ret; 8122 8123 fail: 8124 ret = -ENOBUFS; 8125 error: 8126 nlmsg_free(msg); 8127 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 8128 return ret; 8129 } 8130 8131 8132 static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr, 8133 u8 user_priority, u16 admitted_time) 8134 { 8135 struct i802_bss *bss = priv; 8136 struct wpa_driver_nl80211_data *drv = bss->drv; 8137 struct nl_msg *msg; 8138 int ret; 8139 8140 wpa_printf(MSG_DEBUG, 8141 "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d", 8142 tsid, admitted_time, user_priority); 8143 8144 if (!is_sta_interface(drv->nlmode)) 8145 return -ENOTSUP; 8146 8147 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS); 8148 if (!msg || 8149 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || 8150 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 8151 nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) || 8152 nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) { 8153 nlmsg_free(msg); 8154 return -ENOBUFS; 8155 } 8156 8157 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8158 if (ret) 8159 wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)", 8160 ret, strerror(-ret)); 8161 return ret; 8162 } 8163 8164 8165 static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr) 8166 { 8167 struct i802_bss *bss = priv; 8168 struct wpa_driver_nl80211_data *drv = bss->drv; 8169 struct nl_msg *msg; 8170 int ret; 8171 8172 wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid); 8173 8174 if (!is_sta_interface(drv->nlmode)) 8175 return -ENOTSUP; 8176 8177 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) || 8178 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || 8179 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 8180 nlmsg_free(msg); 8181 return -ENOBUFS; 8182 } 8183 8184 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8185 if (ret) 8186 wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)", 8187 ret, strerror(-ret)); 8188 return ret; 8189 } 8190 8191 8192 #ifdef CONFIG_TESTING_OPTIONS 8193 static int cmd_reply_handler(struct nl_msg *msg, void *arg) 8194 { 8195 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8196 struct wpabuf *buf = arg; 8197 8198 if (!buf) 8199 return NL_SKIP; 8200 8201 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 8202 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 8203 return NL_SKIP; 8204 } 8205 8206 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 8207 genlmsg_attrlen(gnlh, 0)); 8208 8209 return NL_SKIP; 8210 } 8211 #endif /* CONFIG_TESTING_OPTIONS */ 8212 8213 8214 static int vendor_reply_handler(struct nl_msg *msg, void *arg) 8215 { 8216 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8217 struct nlattr *nl_vendor_reply, *nl; 8218 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8219 struct wpabuf *buf = arg; 8220 int rem; 8221 8222 if (!buf) 8223 return NL_SKIP; 8224 8225 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8226 genlmsg_attrlen(gnlh, 0), NULL); 8227 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 8228 8229 if (!nl_vendor_reply) 8230 return NL_SKIP; 8231 8232 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 8233 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 8234 return NL_SKIP; 8235 } 8236 8237 nla_for_each_nested(nl, nl_vendor_reply, rem) { 8238 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 8239 } 8240 8241 return NL_SKIP; 8242 } 8243 8244 8245 static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 8246 unsigned int subcmd, const u8 *data, 8247 size_t data_len, struct wpabuf *buf) 8248 { 8249 struct i802_bss *bss = priv; 8250 struct wpa_driver_nl80211_data *drv = bss->drv; 8251 struct nl_msg *msg; 8252 int ret; 8253 8254 #ifdef CONFIG_TESTING_OPTIONS 8255 if (vendor_id == 0xffffffff) { 8256 msg = nlmsg_alloc(); 8257 if (!msg) 8258 return -ENOMEM; 8259 8260 nl80211_cmd(drv, msg, 0, subcmd); 8261 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 8262 0) 8263 goto fail; 8264 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 8265 if (ret) 8266 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 8267 ret); 8268 return ret; 8269 } 8270 #endif /* CONFIG_TESTING_OPTIONS */ 8271 8272 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) || 8273 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) || 8274 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) || 8275 (data && 8276 nla_put(msg, NL80211_ATTR_VENDOR_DATA, data_len, data))) 8277 goto fail; 8278 8279 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 8280 if (ret) 8281 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 8282 ret); 8283 return ret; 8284 8285 fail: 8286 nlmsg_free(msg); 8287 return -ENOBUFS; 8288 } 8289 8290 8291 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 8292 u8 qos_map_set_len) 8293 { 8294 struct i802_bss *bss = priv; 8295 struct wpa_driver_nl80211_data *drv = bss->drv; 8296 struct nl_msg *msg; 8297 int ret; 8298 8299 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 8300 qos_map_set, qos_map_set_len); 8301 8302 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) || 8303 nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) { 8304 nlmsg_free(msg); 8305 return -ENOBUFS; 8306 } 8307 8308 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8309 if (ret) 8310 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 8311 8312 return ret; 8313 } 8314 8315 8316 static int nl80211_set_wowlan(void *priv, 8317 const struct wowlan_triggers *triggers) 8318 { 8319 struct i802_bss *bss = priv; 8320 struct wpa_driver_nl80211_data *drv = bss->drv; 8321 struct nl_msg *msg; 8322 struct nlattr *wowlan_triggers; 8323 int ret; 8324 8325 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); 8326 8327 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) || 8328 !(wowlan_triggers = nla_nest_start(msg, 8329 NL80211_ATTR_WOWLAN_TRIGGERS)) || 8330 (triggers->any && 8331 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || 8332 (triggers->disconnect && 8333 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || 8334 (triggers->magic_pkt && 8335 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || 8336 (triggers->gtk_rekey_failure && 8337 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || 8338 (triggers->eap_identity_req && 8339 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || 8340 (triggers->four_way_handshake && 8341 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || 8342 (triggers->rfkill_release && 8343 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) { 8344 nlmsg_free(msg); 8345 return -ENOBUFS; 8346 } 8347 8348 nla_nest_end(msg, wowlan_triggers); 8349 8350 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8351 if (ret) 8352 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); 8353 8354 return ret; 8355 } 8356 8357 8358 #ifdef CONFIG_DRIVER_NL80211_QCA 8359 static int nl80211_roaming(void *priv, int allowed, const u8 *bssid) 8360 { 8361 struct i802_bss *bss = priv; 8362 struct wpa_driver_nl80211_data *drv = bss->drv; 8363 struct nl_msg *msg; 8364 struct nlattr *params; 8365 8366 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed); 8367 8368 if (!drv->roaming_vendor_cmd_avail) { 8369 wpa_printf(MSG_DEBUG, 8370 "nl80211: Ignore roaming policy change since driver does not provide command for setting it"); 8371 return -1; 8372 } 8373 8374 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 8375 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 8376 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 8377 QCA_NL80211_VENDOR_SUBCMD_ROAMING) || 8378 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 8379 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY, 8380 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS : 8381 QCA_ROAMING_NOT_ALLOWED) || 8382 (bssid && 8383 nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) { 8384 nlmsg_free(msg); 8385 return -1; 8386 } 8387 nla_nest_end(msg, params); 8388 8389 return send_and_recv_msgs(drv, msg, NULL, NULL); 8390 } 8391 #endif /* CONFIG_DRIVER_NL80211_QCA */ 8392 8393 8394 static int nl80211_set_mac_addr(void *priv, const u8 *addr) 8395 { 8396 struct i802_bss *bss = priv; 8397 struct wpa_driver_nl80211_data *drv = bss->drv; 8398 int new_addr = addr != NULL; 8399 8400 if (TEST_FAIL()) 8401 return -1; 8402 8403 if (!addr) 8404 addr = drv->perm_addr; 8405 8406 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0) 8407 return -1; 8408 8409 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0) 8410 { 8411 wpa_printf(MSG_DEBUG, 8412 "nl80211: failed to set_mac_addr for %s to " MACSTR, 8413 bss->ifname, MAC2STR(addr)); 8414 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 8415 1) < 0) { 8416 wpa_printf(MSG_DEBUG, 8417 "nl80211: Could not restore interface UP after failed set_mac_addr"); 8418 } 8419 return -1; 8420 } 8421 8422 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR, 8423 bss->ifname, MAC2STR(addr)); 8424 drv->addr_changed = new_addr; 8425 os_memcpy(bss->addr, addr, ETH_ALEN); 8426 8427 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0) 8428 { 8429 wpa_printf(MSG_DEBUG, 8430 "nl80211: Could not restore interface UP after set_mac_addr"); 8431 } 8432 8433 return 0; 8434 } 8435 8436 8437 #ifdef CONFIG_MESH 8438 8439 static int wpa_driver_nl80211_init_mesh(void *priv) 8440 { 8441 if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) { 8442 wpa_printf(MSG_INFO, 8443 "nl80211: Failed to set interface into mesh mode"); 8444 return -1; 8445 } 8446 return 0; 8447 } 8448 8449 8450 static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id, 8451 size_t mesh_id_len) 8452 { 8453 if (mesh_id) { 8454 wpa_hexdump_ascii(MSG_DEBUG, " * Mesh ID (SSID)", 8455 mesh_id, mesh_id_len); 8456 return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id); 8457 } 8458 8459 return 0; 8460 } 8461 8462 8463 static int nl80211_put_mesh_config(struct nl_msg *msg, 8464 struct wpa_driver_mesh_bss_params *params) 8465 { 8466 struct nlattr *container; 8467 8468 container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); 8469 if (!container) 8470 return -1; 8471 8472 if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) && 8473 nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, 8474 params->auto_plinks)) || 8475 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) && 8476 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, 8477 params->max_peer_links))) 8478 return -1; 8479 8480 /* 8481 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because 8482 * the timer could disconnect stations even in that case. 8483 */ 8484 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) && 8485 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, 8486 params->peer_link_timeout)) { 8487 wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT"); 8488 return -1; 8489 } 8490 8491 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) && 8492 nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) { 8493 wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE"); 8494 return -1; 8495 } 8496 8497 nla_nest_end(msg, container); 8498 8499 return 0; 8500 } 8501 8502 8503 static int nl80211_join_mesh(struct i802_bss *bss, 8504 struct wpa_driver_mesh_join_params *params) 8505 { 8506 struct wpa_driver_nl80211_data *drv = bss->drv; 8507 struct nl_msg *msg; 8508 struct nlattr *container; 8509 int ret = -1; 8510 8511 wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex); 8512 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH); 8513 if (!msg || 8514 nl80211_put_freq_params(msg, ¶ms->freq) || 8515 nl80211_put_basic_rates(msg, params->basic_rates) || 8516 nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) || 8517 nl80211_put_beacon_int(msg, params->beacon_int) || 8518 nl80211_put_dtim_period(msg, params->dtim_period)) 8519 goto fail; 8520 8521 wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags); 8522 8523 container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP); 8524 if (!container) 8525 goto fail; 8526 8527 if (params->ies) { 8528 wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len); 8529 if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len, 8530 params->ies)) 8531 goto fail; 8532 } 8533 /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */ 8534 if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) { 8535 if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) || 8536 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH)) 8537 goto fail; 8538 } 8539 if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) && 8540 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE)) 8541 goto fail; 8542 if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) && 8543 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM)) 8544 goto fail; 8545 nla_nest_end(msg, container); 8546 8547 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS; 8548 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT; 8549 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS; 8550 if (nl80211_put_mesh_config(msg, ¶ms->conf) < 0) 8551 goto fail; 8552 8553 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8554 msg = NULL; 8555 if (ret) { 8556 wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)", 8557 ret, strerror(-ret)); 8558 goto fail; 8559 } 8560 ret = 0; 8561 drv->assoc_freq = bss->freq = params->freq.freq; 8562 wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully"); 8563 8564 fail: 8565 nlmsg_free(msg); 8566 return ret; 8567 } 8568 8569 8570 static int 8571 wpa_driver_nl80211_join_mesh(void *priv, 8572 struct wpa_driver_mesh_join_params *params) 8573 { 8574 struct i802_bss *bss = priv; 8575 int ret, timeout; 8576 8577 timeout = params->conf.peer_link_timeout; 8578 8579 /* Disable kernel inactivity timer */ 8580 if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) 8581 params->conf.peer_link_timeout = 0; 8582 8583 ret = nl80211_join_mesh(bss, params); 8584 if (ret == -EINVAL && params->conf.peer_link_timeout == 0) { 8585 wpa_printf(MSG_DEBUG, 8586 "nl80211: Mesh join retry for peer_link_timeout"); 8587 /* 8588 * Old kernel does not support setting 8589 * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds 8590 * into future from peer_link_timeout. 8591 */ 8592 params->conf.peer_link_timeout = timeout + 60; 8593 ret = nl80211_join_mesh(priv, params); 8594 } 8595 8596 params->conf.peer_link_timeout = timeout; 8597 return ret; 8598 } 8599 8600 8601 static int wpa_driver_nl80211_leave_mesh(void *priv) 8602 { 8603 struct i802_bss *bss = priv; 8604 struct wpa_driver_nl80211_data *drv = bss->drv; 8605 struct nl_msg *msg; 8606 int ret; 8607 8608 wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex); 8609 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH); 8610 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8611 if (ret) { 8612 wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)", 8613 ret, strerror(-ret)); 8614 } else { 8615 wpa_printf(MSG_DEBUG, 8616 "nl80211: mesh leave request send successfully"); 8617 } 8618 8619 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8620 NL80211_IFTYPE_STATION)) { 8621 wpa_printf(MSG_INFO, 8622 "nl80211: Failed to set interface into station mode"); 8623 } 8624 return ret; 8625 } 8626 8627 #endif /* CONFIG_MESH */ 8628 8629 8630 static int wpa_driver_br_add_ip_neigh(void *priv, u8 version, 8631 const u8 *ipaddr, int prefixlen, 8632 const u8 *addr) 8633 { 8634 #ifdef CONFIG_LIBNL3_ROUTE 8635 struct i802_bss *bss = priv; 8636 struct wpa_driver_nl80211_data *drv = bss->drv; 8637 struct rtnl_neigh *rn; 8638 struct nl_addr *nl_ipaddr = NULL; 8639 struct nl_addr *nl_lladdr = NULL; 8640 int family, addrsize; 8641 int res; 8642 8643 if (!ipaddr || prefixlen == 0 || !addr) 8644 return -EINVAL; 8645 8646 if (bss->br_ifindex == 0) { 8647 wpa_printf(MSG_DEBUG, 8648 "nl80211: bridge must be set before adding an ip neigh to it"); 8649 return -1; 8650 } 8651 8652 if (!drv->rtnl_sk) { 8653 wpa_printf(MSG_DEBUG, 8654 "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); 8655 return -1; 8656 } 8657 8658 if (version == 4) { 8659 family = AF_INET; 8660 addrsize = 4; 8661 } else if (version == 6) { 8662 family = AF_INET6; 8663 addrsize = 16; 8664 } else { 8665 return -EINVAL; 8666 } 8667 8668 rn = rtnl_neigh_alloc(); 8669 if (rn == NULL) 8670 return -ENOMEM; 8671 8672 /* set the destination ip address for neigh */ 8673 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); 8674 if (nl_ipaddr == NULL) { 8675 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); 8676 res = -ENOMEM; 8677 goto errout; 8678 } 8679 nl_addr_set_prefixlen(nl_ipaddr, prefixlen); 8680 res = rtnl_neigh_set_dst(rn, nl_ipaddr); 8681 if (res) { 8682 wpa_printf(MSG_DEBUG, 8683 "nl80211: neigh set destination addr failed"); 8684 goto errout; 8685 } 8686 8687 /* set the corresponding lladdr for neigh */ 8688 nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN); 8689 if (nl_lladdr == NULL) { 8690 wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed"); 8691 res = -ENOMEM; 8692 goto errout; 8693 } 8694 rtnl_neigh_set_lladdr(rn, nl_lladdr); 8695 8696 rtnl_neigh_set_ifindex(rn, bss->br_ifindex); 8697 rtnl_neigh_set_state(rn, NUD_PERMANENT); 8698 8699 res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE); 8700 if (res) { 8701 wpa_printf(MSG_DEBUG, 8702 "nl80211: Adding bridge ip neigh failed: %s", 8703 strerror(errno)); 8704 } 8705 errout: 8706 if (nl_lladdr) 8707 nl_addr_put(nl_lladdr); 8708 if (nl_ipaddr) 8709 nl_addr_put(nl_ipaddr); 8710 if (rn) 8711 rtnl_neigh_put(rn); 8712 return res; 8713 #else /* CONFIG_LIBNL3_ROUTE */ 8714 return -1; 8715 #endif /* CONFIG_LIBNL3_ROUTE */ 8716 } 8717 8718 8719 static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version, 8720 const u8 *ipaddr) 8721 { 8722 #ifdef CONFIG_LIBNL3_ROUTE 8723 struct i802_bss *bss = priv; 8724 struct wpa_driver_nl80211_data *drv = bss->drv; 8725 struct rtnl_neigh *rn; 8726 struct nl_addr *nl_ipaddr; 8727 int family, addrsize; 8728 int res; 8729 8730 if (!ipaddr) 8731 return -EINVAL; 8732 8733 if (version == 4) { 8734 family = AF_INET; 8735 addrsize = 4; 8736 } else if (version == 6) { 8737 family = AF_INET6; 8738 addrsize = 16; 8739 } else { 8740 return -EINVAL; 8741 } 8742 8743 if (bss->br_ifindex == 0) { 8744 wpa_printf(MSG_DEBUG, 8745 "nl80211: bridge must be set to delete an ip neigh"); 8746 return -1; 8747 } 8748 8749 if (!drv->rtnl_sk) { 8750 wpa_printf(MSG_DEBUG, 8751 "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); 8752 return -1; 8753 } 8754 8755 rn = rtnl_neigh_alloc(); 8756 if (rn == NULL) 8757 return -ENOMEM; 8758 8759 /* set the destination ip address for neigh */ 8760 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); 8761 if (nl_ipaddr == NULL) { 8762 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); 8763 res = -ENOMEM; 8764 goto errout; 8765 } 8766 res = rtnl_neigh_set_dst(rn, nl_ipaddr); 8767 if (res) { 8768 wpa_printf(MSG_DEBUG, 8769 "nl80211: neigh set destination addr failed"); 8770 goto errout; 8771 } 8772 8773 rtnl_neigh_set_ifindex(rn, bss->br_ifindex); 8774 8775 res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); 8776 if (res) { 8777 wpa_printf(MSG_DEBUG, 8778 "nl80211: Deleting bridge ip neigh failed: %s", 8779 strerror(errno)); 8780 } 8781 errout: 8782 if (nl_ipaddr) 8783 nl_addr_put(nl_ipaddr); 8784 if (rn) 8785 rtnl_neigh_put(rn); 8786 return res; 8787 #else /* CONFIG_LIBNL3_ROUTE */ 8788 return -1; 8789 #endif /* CONFIG_LIBNL3_ROUTE */ 8790 } 8791 8792 8793 static int linux_write_system_file(const char *path, unsigned int val) 8794 { 8795 char buf[50]; 8796 int fd, len; 8797 8798 len = os_snprintf(buf, sizeof(buf), "%u\n", val); 8799 if (os_snprintf_error(sizeof(buf), len)) 8800 return -1; 8801 8802 fd = open(path, O_WRONLY); 8803 if (fd < 0) 8804 return -1; 8805 8806 if (write(fd, buf, len) < 0) { 8807 wpa_printf(MSG_DEBUG, 8808 "nl80211: Failed to write Linux system file: %s with the value of %d", 8809 path, val); 8810 close(fd); 8811 return -1; 8812 } 8813 close(fd); 8814 8815 return 0; 8816 } 8817 8818 8819 static const char * drv_br_port_attr_str(enum drv_br_port_attr attr) 8820 { 8821 switch (attr) { 8822 case DRV_BR_PORT_ATTR_PROXYARP: 8823 return "proxyarp_wifi"; 8824 case DRV_BR_PORT_ATTR_HAIRPIN_MODE: 8825 return "hairpin_mode"; 8826 } 8827 8828 return NULL; 8829 } 8830 8831 8832 static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr, 8833 unsigned int val) 8834 { 8835 struct i802_bss *bss = priv; 8836 char path[128]; 8837 const char *attr_txt; 8838 8839 attr_txt = drv_br_port_attr_str(attr); 8840 if (attr_txt == NULL) 8841 return -EINVAL; 8842 8843 os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s", 8844 bss->ifname, attr_txt); 8845 8846 if (linux_write_system_file(path, val)) 8847 return -1; 8848 8849 return 0; 8850 } 8851 8852 8853 static const char * drv_br_net_param_str(enum drv_br_net_param param) 8854 { 8855 switch (param) { 8856 case DRV_BR_NET_PARAM_GARP_ACCEPT: 8857 return "arp_accept"; 8858 default: 8859 return NULL; 8860 } 8861 } 8862 8863 8864 static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param, 8865 unsigned int val) 8866 { 8867 struct i802_bss *bss = priv; 8868 char path[128]; 8869 const char *param_txt; 8870 int ip_version = 4; 8871 8872 if (param == DRV_BR_MULTICAST_SNOOPING) { 8873 os_snprintf(path, sizeof(path), 8874 "/sys/devices/virtual/net/%s/bridge/multicast_snooping", 8875 bss->brname); 8876 goto set_val; 8877 } 8878 8879 param_txt = drv_br_net_param_str(param); 8880 if (param_txt == NULL) 8881 return -EINVAL; 8882 8883 switch (param) { 8884 case DRV_BR_NET_PARAM_GARP_ACCEPT: 8885 ip_version = 4; 8886 break; 8887 default: 8888 return -EINVAL; 8889 } 8890 8891 os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s", 8892 ip_version, bss->brname, param_txt); 8893 8894 set_val: 8895 if (linux_write_system_file(path, val)) 8896 return -1; 8897 8898 return 0; 8899 } 8900 8901 8902 #ifdef CONFIG_DRIVER_NL80211_QCA 8903 8904 static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode) 8905 { 8906 switch (hw_mode) { 8907 case HOSTAPD_MODE_IEEE80211B: 8908 return QCA_ACS_MODE_IEEE80211B; 8909 case HOSTAPD_MODE_IEEE80211G: 8910 return QCA_ACS_MODE_IEEE80211G; 8911 case HOSTAPD_MODE_IEEE80211A: 8912 return QCA_ACS_MODE_IEEE80211A; 8913 case HOSTAPD_MODE_IEEE80211AD: 8914 return QCA_ACS_MODE_IEEE80211AD; 8915 case HOSTAPD_MODE_IEEE80211ANY: 8916 return QCA_ACS_MODE_IEEE80211ANY; 8917 default: 8918 return -1; 8919 } 8920 } 8921 8922 8923 static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list) 8924 { 8925 int i, len, ret; 8926 u32 *freqs; 8927 8928 if (!freq_list) 8929 return 0; 8930 len = int_array_len(freq_list); 8931 freqs = os_malloc(sizeof(u32) * len); 8932 if (!freqs) 8933 return -1; 8934 for (i = 0; i < len; i++) 8935 freqs[i] = freq_list[i]; 8936 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST, 8937 sizeof(u32) * len, freqs); 8938 os_free(freqs); 8939 return ret; 8940 } 8941 8942 8943 static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params) 8944 { 8945 struct i802_bss *bss = priv; 8946 struct wpa_driver_nl80211_data *drv = bss->drv; 8947 struct nl_msg *msg; 8948 struct nlattr *data; 8949 int ret; 8950 int mode; 8951 8952 mode = hw_mode_to_qca_acs(params->hw_mode); 8953 if (mode < 0) 8954 return -1; 8955 8956 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 8957 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 8958 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 8959 QCA_NL80211_VENDOR_SUBCMD_DO_ACS) || 8960 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 8961 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) || 8962 (params->ht_enabled && 8963 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) || 8964 (params->ht40_enabled && 8965 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) || 8966 (params->vht_enabled && 8967 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) || 8968 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH, 8969 params->ch_width) || 8970 (params->ch_list_len && 8971 nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, params->ch_list_len, 8972 params->ch_list)) || 8973 add_acs_freq_list(msg, params->freq_list)) { 8974 nlmsg_free(msg); 8975 return -ENOBUFS; 8976 } 8977 nla_nest_end(msg, data); 8978 8979 wpa_printf(MSG_DEBUG, 8980 "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d CH_LIST_LEN: %u", 8981 params->hw_mode, params->ht_enabled, params->ht40_enabled, 8982 params->vht_enabled, params->ch_width, params->ch_list_len); 8983 8984 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8985 if (ret) { 8986 wpa_printf(MSG_DEBUG, 8987 "nl80211: Failed to invoke driver ACS function: %s", 8988 strerror(errno)); 8989 } 8990 return ret; 8991 } 8992 8993 8994 static int nl80211_set_band(void *priv, enum set_band band) 8995 { 8996 struct i802_bss *bss = priv; 8997 struct wpa_driver_nl80211_data *drv = bss->drv; 8998 struct nl_msg *msg; 8999 struct nlattr *data; 9000 int ret; 9001 enum qca_set_band qca_band; 9002 9003 if (!drv->setband_vendor_cmd_avail) 9004 return -1; 9005 9006 switch (band) { 9007 case WPA_SETBAND_AUTO: 9008 qca_band = QCA_SETBAND_AUTO; 9009 break; 9010 case WPA_SETBAND_5G: 9011 qca_band = QCA_SETBAND_5G; 9012 break; 9013 case WPA_SETBAND_2G: 9014 qca_band = QCA_SETBAND_2G; 9015 break; 9016 default: 9017 return -1; 9018 } 9019 9020 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9021 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9022 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9023 QCA_NL80211_VENDOR_SUBCMD_SETBAND) || 9024 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9025 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band)) { 9026 nlmsg_free(msg); 9027 return -ENOBUFS; 9028 } 9029 nla_nest_end(msg, data); 9030 9031 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9032 if (ret) { 9033 wpa_printf(MSG_DEBUG, 9034 "nl80211: Driver setband function failed: %s", 9035 strerror(errno)); 9036 } 9037 return ret; 9038 } 9039 9040 9041 struct nl80211_pcl { 9042 unsigned int num; 9043 unsigned int *freq_list; 9044 }; 9045 9046 static int preferred_freq_info_handler(struct nl_msg *msg, void *arg) 9047 { 9048 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9049 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9050 struct nl80211_pcl *param = arg; 9051 struct nlattr *nl_vend, *attr; 9052 enum qca_iface_type iface_type; 9053 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 9054 unsigned int num, max_num; 9055 u32 *freqs; 9056 9057 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9058 genlmsg_attrlen(gnlh, 0), NULL); 9059 9060 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 9061 if (!nl_vend) 9062 return NL_SKIP; 9063 9064 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 9065 nla_data(nl_vend), nla_len(nl_vend), NULL); 9066 9067 attr = tb_vendor[ 9068 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE]; 9069 if (!attr) { 9070 wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found"); 9071 param->num = 0; 9072 return NL_SKIP; 9073 } 9074 9075 iface_type = (enum qca_iface_type) nla_get_u32(attr); 9076 wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d", 9077 iface_type); 9078 9079 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST]; 9080 if (!attr) { 9081 wpa_printf(MSG_ERROR, 9082 "nl80211: preferred_freq_list couldn't be found"); 9083 param->num = 0; 9084 return NL_SKIP; 9085 } 9086 9087 /* 9088 * param->num has the maximum number of entries for which there 9089 * is room in the freq_list provided by the caller. 9090 */ 9091 freqs = nla_data(attr); 9092 max_num = nla_len(attr) / sizeof(u32); 9093 if (max_num > param->num) 9094 max_num = param->num; 9095 for (num = 0; num < max_num; num++) 9096 param->freq_list[num] = freqs[num]; 9097 param->num = num; 9098 9099 return NL_SKIP; 9100 } 9101 9102 9103 static int nl80211_get_pref_freq_list(void *priv, 9104 enum wpa_driver_if_type if_type, 9105 unsigned int *num, 9106 unsigned int *freq_list) 9107 { 9108 struct i802_bss *bss = priv; 9109 struct wpa_driver_nl80211_data *drv = bss->drv; 9110 struct nl_msg *msg; 9111 int ret; 9112 unsigned int i; 9113 struct nlattr *params; 9114 struct nl80211_pcl param; 9115 enum qca_iface_type iface_type; 9116 9117 if (!drv->get_pref_freq_list) 9118 return -1; 9119 9120 switch (if_type) { 9121 case WPA_IF_STATION: 9122 iface_type = QCA_IFACE_TYPE_STA; 9123 break; 9124 case WPA_IF_AP_BSS: 9125 iface_type = QCA_IFACE_TYPE_AP; 9126 break; 9127 case WPA_IF_P2P_GO: 9128 iface_type = QCA_IFACE_TYPE_P2P_GO; 9129 break; 9130 case WPA_IF_P2P_CLIENT: 9131 iface_type = QCA_IFACE_TYPE_P2P_CLIENT; 9132 break; 9133 case WPA_IF_IBSS: 9134 iface_type = QCA_IFACE_TYPE_IBSS; 9135 break; 9136 case WPA_IF_TDLS: 9137 iface_type = QCA_IFACE_TYPE_TDLS; 9138 break; 9139 default: 9140 return -1; 9141 } 9142 9143 param.num = *num; 9144 param.freq_list = freq_list; 9145 9146 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) || 9148 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9149 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9150 QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) || 9151 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9152 nla_put_u32(msg, 9153 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE, 9154 iface_type)) { 9155 wpa_printf(MSG_ERROR, 9156 "%s: err in adding vendor_cmd and vendor_data", 9157 __func__); 9158 nlmsg_free(msg); 9159 return -1; 9160 } 9161 nla_nest_end(msg, params); 9162 9163 os_memset(freq_list, 0, *num * sizeof(freq_list[0])); 9164 ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, ¶m); 9165 if (ret) { 9166 wpa_printf(MSG_ERROR, 9167 "%s: err in send_and_recv_msgs", __func__); 9168 return ret; 9169 } 9170 9171 *num = param.num; 9172 9173 for (i = 0; i < *num; i++) { 9174 wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d", 9175 i, freq_list[i]); 9176 } 9177 9178 return 0; 9179 } 9180 9181 9182 static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq) 9183 { 9184 struct i802_bss *bss = priv; 9185 struct wpa_driver_nl80211_data *drv = bss->drv; 9186 struct nl_msg *msg; 9187 int ret; 9188 struct nlattr *params; 9189 9190 if (!drv->set_prob_oper_freq) 9191 return -1; 9192 9193 wpa_printf(MSG_DEBUG, 9194 "nl80211: Set P2P probable operating freq %u for ifindex %d", 9195 freq, bss->ifindex); 9196 9197 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9198 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9199 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9200 QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) || 9201 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9202 nla_put_u32(msg, 9203 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE, 9204 QCA_IFACE_TYPE_P2P_CLIENT) || 9205 nla_put_u32(msg, 9206 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ, 9207 freq)) { 9208 wpa_printf(MSG_ERROR, 9209 "%s: err in adding vendor_cmd and vendor_data", 9210 __func__); 9211 nlmsg_free(msg); 9212 return -1; 9213 } 9214 nla_nest_end(msg, params); 9215 9216 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9217 msg = NULL; 9218 if (ret) { 9219 wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs", 9220 __func__); 9221 return ret; 9222 } 9223 nlmsg_free(msg); 9224 return 0; 9225 } 9226 9227 9228 static int nl80211_p2p_lo_start(void *priv, unsigned int freq, 9229 unsigned int period, unsigned int interval, 9230 unsigned int count, const u8 *device_types, 9231 size_t dev_types_len, 9232 const u8 *ies, size_t ies_len) 9233 { 9234 struct i802_bss *bss = priv; 9235 struct wpa_driver_nl80211_data *drv = bss->drv; 9236 struct nl_msg *msg; 9237 struct nlattr *container; 9238 int ret; 9239 9240 wpa_printf(MSG_DEBUG, 9241 "nl80211: Start P2P Listen offload: freq=%u, period=%u, interval=%u, count=%u", 9242 freq, period, interval, count); 9243 9244 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) 9245 return -1; 9246 9247 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9248 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9249 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9250 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START)) 9251 goto fail; 9252 9253 container = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); 9254 if (!container) 9255 goto fail; 9256 9257 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL, 9258 freq) || 9259 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD, 9260 period) || 9261 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL, 9262 interval) || 9263 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT, 9264 count) || 9265 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES, 9266 dev_types_len, device_types) || 9267 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE, 9268 ies_len, ies)) 9269 goto fail; 9270 9271 nla_nest_end(msg, container); 9272 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9273 msg = NULL; 9274 if (ret) { 9275 wpa_printf(MSG_DEBUG, 9276 "nl80211: Failed to send P2P Listen offload vendor command"); 9277 goto fail; 9278 } 9279 9280 return 0; 9281 9282 fail: 9283 nlmsg_free(msg); 9284 return -1; 9285 } 9286 9287 9288 static int nl80211_p2p_lo_stop(void *priv) 9289 { 9290 struct i802_bss *bss = priv; 9291 struct wpa_driver_nl80211_data *drv = bss->drv; 9292 struct nl_msg *msg; 9293 9294 wpa_printf(MSG_DEBUG, "nl80211: Stop P2P Listen offload"); 9295 9296 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) 9297 return -1; 9298 9299 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9300 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9301 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9302 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP)) { 9303 nlmsg_free(msg); 9304 return -1; 9305 } 9306 9307 return send_and_recv_msgs(drv, msg, NULL, NULL); 9308 } 9309 9310 #endif /* CONFIG_DRIVER_NL80211_QCA */ 9311 9312 9313 static int nl80211_write_to_file(const char *name, unsigned int val) 9314 { 9315 int fd, len; 9316 char tmp[128]; 9317 9318 fd = open(name, O_RDWR); 9319 if (fd < 0) { 9320 wpa_printf(MSG_ERROR, "nl80211: Failed to open %s: %s", 9321 name, strerror(errno)); 9322 return fd; 9323 } 9324 9325 len = os_snprintf(tmp, sizeof(tmp), "%u\n", val); 9326 len = write(fd, tmp, len); 9327 if (len < 0) 9328 wpa_printf(MSG_ERROR, "nl80211: Failed to write to %s: %s", 9329 name, strerror(errno)); 9330 close(fd); 9331 9332 return 0; 9333 } 9334 9335 9336 static int nl80211_configure_data_frame_filters(void *priv, u32 filter_flags) 9337 { 9338 struct i802_bss *bss = priv; 9339 char path[128]; 9340 int ret; 9341 9342 wpa_printf(MSG_DEBUG, "nl80211: Data frame filter flags=0x%x", 9343 filter_flags); 9344 9345 /* Configure filtering of unicast frame encrypted using GTK */ 9346 ret = os_snprintf(path, sizeof(path), 9347 "/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast", 9348 bss->ifname); 9349 if (os_snprintf_error(sizeof(path), ret)) 9350 return -1; 9351 9352 ret = nl80211_write_to_file(path, 9353 !!(filter_flags & 9354 WPA_DATA_FRAME_FILTER_FLAG_GTK)); 9355 if (ret) { 9356 wpa_printf(MSG_ERROR, 9357 "nl80211: Failed to set IPv4 unicast in multicast filter"); 9358 return ret; 9359 } 9360 9361 os_snprintf(path, sizeof(path), 9362 "/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast", 9363 bss->ifname); 9364 ret = nl80211_write_to_file(path, 9365 !!(filter_flags & 9366 WPA_DATA_FRAME_FILTER_FLAG_GTK)); 9367 9368 if (ret) { 9369 wpa_printf(MSG_ERROR, 9370 "nl80211: Failed to set IPv6 unicast in multicast filter"); 9371 return ret; 9372 } 9373 9374 /* Configure filtering of unicast frame encrypted using GTK */ 9375 os_snprintf(path, sizeof(path), 9376 "/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp", 9377 bss->ifname); 9378 ret = nl80211_write_to_file(path, 9379 !!(filter_flags & 9380 WPA_DATA_FRAME_FILTER_FLAG_ARP)); 9381 if (ret) { 9382 wpa_printf(MSG_ERROR, 9383 "nl80211: Failed set gratuitous ARP filter"); 9384 return ret; 9385 } 9386 9387 /* Configure filtering of IPv6 NA frames */ 9388 os_snprintf(path, sizeof(path), 9389 "/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na", 9390 bss->ifname); 9391 ret = nl80211_write_to_file(path, 9392 !!(filter_flags & 9393 WPA_DATA_FRAME_FILTER_FLAG_NA)); 9394 if (ret) { 9395 wpa_printf(MSG_ERROR, 9396 "nl80211: Failed to set unsolicited NA filter"); 9397 return ret; 9398 } 9399 9400 return 0; 9401 } 9402 9403 9404 static int nl80211_get_ext_capab(void *priv, enum wpa_driver_if_type type, 9405 const u8 **ext_capa, const u8 **ext_capa_mask, 9406 unsigned int *ext_capa_len) 9407 { 9408 struct i802_bss *bss = priv; 9409 struct wpa_driver_nl80211_data *drv = bss->drv; 9410 enum nl80211_iftype nlmode; 9411 unsigned int i; 9412 9413 if (!ext_capa || !ext_capa_mask || !ext_capa_len) 9414 return -1; 9415 9416 nlmode = wpa_driver_nl80211_if_type(type); 9417 9418 /* By default, use the per-radio values */ 9419 *ext_capa = drv->extended_capa; 9420 *ext_capa_mask = drv->extended_capa_mask; 9421 *ext_capa_len = drv->extended_capa_len; 9422 9423 /* Replace the default value if a per-interface type value exists */ 9424 for (i = 0; i < drv->num_iface_ext_capa; i++) { 9425 if (nlmode == drv->iface_ext_capa[i].iftype) { 9426 *ext_capa = drv->iface_ext_capa[i].ext_capa; 9427 *ext_capa_mask = drv->iface_ext_capa[i].ext_capa_mask; 9428 *ext_capa_len = drv->iface_ext_capa[i].ext_capa_len; 9429 break; 9430 } 9431 } 9432 9433 return 0; 9434 } 9435 9436 9437 const struct wpa_driver_ops wpa_driver_nl80211_ops = { 9438 .name = "nl80211", 9439 .desc = "Linux nl80211/cfg80211", 9440 .get_bssid = wpa_driver_nl80211_get_bssid, 9441 .get_ssid = wpa_driver_nl80211_get_ssid, 9442 .set_key = driver_nl80211_set_key, 9443 .scan2 = driver_nl80211_scan2, 9444 .sched_scan = wpa_driver_nl80211_sched_scan, 9445 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 9446 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 9447 .abort_scan = wpa_driver_nl80211_abort_scan, 9448 .deauthenticate = driver_nl80211_deauthenticate, 9449 .authenticate = driver_nl80211_authenticate, 9450 .associate = wpa_driver_nl80211_associate, 9451 .global_init = nl80211_global_init, 9452 .global_deinit = nl80211_global_deinit, 9453 .init2 = wpa_driver_nl80211_init, 9454 .deinit = driver_nl80211_deinit, 9455 .get_capa = wpa_driver_nl80211_get_capa, 9456 .set_operstate = wpa_driver_nl80211_set_operstate, 9457 .set_supp_port = wpa_driver_nl80211_set_supp_port, 9458 .set_country = wpa_driver_nl80211_set_country, 9459 .get_country = wpa_driver_nl80211_get_country, 9460 .set_ap = wpa_driver_nl80211_set_ap, 9461 .set_acl = wpa_driver_nl80211_set_acl, 9462 .if_add = wpa_driver_nl80211_if_add, 9463 .if_remove = driver_nl80211_if_remove, 9464 .send_mlme = driver_nl80211_send_mlme, 9465 .get_hw_feature_data = nl80211_get_hw_feature_data, 9466 .sta_add = wpa_driver_nl80211_sta_add, 9467 .sta_remove = driver_nl80211_sta_remove, 9468 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 9469 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 9470 .hapd_init = i802_init, 9471 .hapd_deinit = i802_deinit, 9472 .set_wds_sta = i802_set_wds_sta, 9473 .get_seqnum = i802_get_seqnum, 9474 .flush = i802_flush, 9475 .get_inact_sec = i802_get_inact_sec, 9476 .sta_clear_stats = i802_sta_clear_stats, 9477 .set_rts = i802_set_rts, 9478 .set_frag = i802_set_frag, 9479 .set_tx_queue_params = i802_set_tx_queue_params, 9480 .set_sta_vlan = driver_nl80211_set_sta_vlan, 9481 .sta_deauth = i802_sta_deauth, 9482 .sta_disassoc = i802_sta_disassoc, 9483 .read_sta_data = driver_nl80211_read_sta_data, 9484 .set_freq = i802_set_freq, 9485 .send_action = driver_nl80211_send_action, 9486 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 9487 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 9488 .cancel_remain_on_channel = 9489 wpa_driver_nl80211_cancel_remain_on_channel, 9490 .probe_req_report = driver_nl80211_probe_req_report, 9491 .deinit_ap = wpa_driver_nl80211_deinit_ap, 9492 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 9493 .resume = wpa_driver_nl80211_resume, 9494 .signal_monitor = nl80211_signal_monitor, 9495 .signal_poll = nl80211_signal_poll, 9496 .send_frame = nl80211_send_frame, 9497 .set_param = nl80211_set_param, 9498 .get_radio_name = nl80211_get_radio_name, 9499 .add_pmkid = nl80211_add_pmkid, 9500 .remove_pmkid = nl80211_remove_pmkid, 9501 .flush_pmkid = nl80211_flush_pmkid, 9502 .set_rekey_info = nl80211_set_rekey_info, 9503 .poll_client = nl80211_poll_client, 9504 .set_p2p_powersave = nl80211_set_p2p_powersave, 9505 .start_dfs_cac = nl80211_start_radar_detection, 9506 .stop_ap = wpa_driver_nl80211_stop_ap, 9507 #ifdef CONFIG_TDLS 9508 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 9509 .tdls_oper = nl80211_tdls_oper, 9510 .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch, 9511 .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch, 9512 #endif /* CONFIG_TDLS */ 9513 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 9514 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 9515 .get_survey = wpa_driver_nl80211_get_survey, 9516 .status = wpa_driver_nl80211_status, 9517 .switch_channel = nl80211_switch_channel, 9518 #ifdef ANDROID_P2P 9519 .set_noa = wpa_driver_set_p2p_noa, 9520 .get_noa = wpa_driver_get_p2p_noa, 9521 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 9522 #endif /* ANDROID_P2P */ 9523 #ifdef ANDROID 9524 #ifndef ANDROID_LIB_STUB 9525 .driver_cmd = wpa_driver_nl80211_driver_cmd, 9526 #endif /* !ANDROID_LIB_STUB */ 9527 #endif /* ANDROID */ 9528 .vendor_cmd = nl80211_vendor_cmd, 9529 .set_qos_map = nl80211_set_qos_map, 9530 .set_wowlan = nl80211_set_wowlan, 9531 .set_mac_addr = nl80211_set_mac_addr, 9532 #ifdef CONFIG_MESH 9533 .init_mesh = wpa_driver_nl80211_init_mesh, 9534 .join_mesh = wpa_driver_nl80211_join_mesh, 9535 .leave_mesh = wpa_driver_nl80211_leave_mesh, 9536 #endif /* CONFIG_MESH */ 9537 .br_add_ip_neigh = wpa_driver_br_add_ip_neigh, 9538 .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh, 9539 .br_port_set_attr = wpa_driver_br_port_set_attr, 9540 .br_set_net_param = wpa_driver_br_set_net_param, 9541 .add_tx_ts = nl80211_add_ts, 9542 .del_tx_ts = nl80211_del_ts, 9543 .get_ifindex = nl80211_get_ifindex, 9544 #ifdef CONFIG_DRIVER_NL80211_QCA 9545 .roaming = nl80211_roaming, 9546 .do_acs = wpa_driver_do_acs, 9547 .set_band = nl80211_set_band, 9548 .get_pref_freq_list = nl80211_get_pref_freq_list, 9549 .set_prob_oper_freq = nl80211_set_prob_oper_freq, 9550 .p2p_lo_start = nl80211_p2p_lo_start, 9551 .p2p_lo_stop = nl80211_p2p_lo_stop, 9552 .set_default_scan_ies = nl80211_set_default_scan_ies, 9553 #endif /* CONFIG_DRIVER_NL80211_QCA */ 9554 .configure_data_frame_filters = nl80211_configure_data_frame_filters, 9555 .get_ext_capab = nl80211_get_ext_capab, 9556 }; 9557