driver_nl80211.c revision 78a5dac804c22aa6e4ec8226a864d3b0d6ccddbb
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 */ 50static uint32_t port_bitmap[32] = { 0 }; 51 52static 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 73static 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 93static 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 115static 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 130static 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 157static 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 165static void nl80211_global_deinit(void *priv); 166static void nl80211_check_global(struct nl80211_global *global); 167 168static void wpa_driver_nl80211_deinit(struct i802_bss *bss); 169static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 170 struct hostapd_freq_params *freq); 171 172static int 173wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, 174 const u8 *set_addr, int first, 175 const char *driver_params); 176static 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); 181static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, 182 int report); 183 184#define IFIDX_ANY -1 185 186static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 187 int ifidx_reason); 188static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 189 int ifidx_reason); 190static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 191 int ifidx_reason); 192 193static int nl80211_set_channel(struct i802_bss *bss, 194 struct hostapd_freq_params *freq, int set_chan); 195static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 196 int ifindex, int disabled); 197 198static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, 199 int reset_mode); 200 201static int i802_set_iface_flags(struct i802_bss *bss, int up); 202static int nl80211_set_param(void *priv, const char *param); 203#ifdef CONFIG_MESH 204static 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 */ 210enum 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 230int is_ap_interface(enum nl80211_iftype nlmode) 231{ 232 return nlmode == NL80211_IFTYPE_AP || 233 nlmode == NL80211_IFTYPE_P2P_GO; 234} 235 236 237int is_sta_interface(enum nl80211_iftype nlmode) 238{ 239 return nlmode == NL80211_IFTYPE_STATION || 240 nlmode == NL80211_IFTYPE_P2P_CLIENT; 241} 242 243 244static 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 251struct 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 265static int is_mesh_interface(enum nl80211_iftype nlmode) 266{ 267 return nlmode == NL80211_IFTYPE_MESH_POINT; 268} 269 270 271void 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 */ 281static int ack_handler(struct nl_msg *msg, void *arg) 282{ 283 int *err = arg; 284 *err = 0; 285 return NL_STOP; 286} 287 288static int finish_handler(struct nl_msg *msg, void *arg) 289{ 290 int *ret = arg; 291 *ret = 0; 292 return NL_SKIP; 293} 294 295static 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 304static int no_seq_check(struct nl_msg *msg, void *arg) 305{ 306 return NL_OK; 307} 308 309 310static 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 332static 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 378int 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 388struct family_data { 389 const char *group; 390 int id; 391}; 392 393 394static 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 425static 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 449void * 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 459static 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 467struct 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 485static struct nl_msg * 486nl80211_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 505struct 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 512struct 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 518struct wiphy_idx_data { 519 int wiphy_idx; 520 enum nl80211_iftype nlmode; 521 u8 *macaddr; 522}; 523 524 525static 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 548int 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 565static 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 582static 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 596static 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 622static 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 637static 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 669static struct nl80211_wiphy_data * 670nl80211_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 721add: 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 739static 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 772static 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 781static 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 792static 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 803static 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 835static 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 868static 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 893static 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 911static struct wpa_driver_nl80211_data * 912nl80211_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 925static 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 1079event_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 1108static 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 1184unsigned 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 1209static 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 1271int 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 1289static 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 1333int 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 1346static 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 */ 1371static 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 1397static 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 1414static 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 1435static 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 1512err: 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 1521static 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 1548static 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 1563static 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 1585static 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 1644static 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 1659static void nl80211_destroy_bss(struct i802_bss *bss) 1660{ 1661 nl_cb_put(bss->nl_cb); 1662 bss->nl_cb = NULL; 1663} 1664 1665 1666static void 1667wpa_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 1719static 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 1799failed: 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 */ 1813static 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 1821static 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 1854static 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 1870static 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 1878static 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 1887static 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 2013static 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 2047static 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 2063static 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 2106static 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 2150out_err: 2151 nl_destroy_handles(&bss->nl_mgmt); 2152 return -1; 2153} 2154 2155 2156static 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 2169out_err: 2170 nl_destroy_handles(&bss->nl_mgmt); 2171 return -1; 2172} 2173 2174 2175static 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 2187static 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 2193static 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 2207static 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 2224static 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 2240static 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 2267static 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 2293static int 2294wpa_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 2401static 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 */ 2419static 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 2528static 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 2570static 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 2595static 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 2620static 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 2650static 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 2790fail: 2791 nl80211_nlmsg_clear(msg); 2792 nlmsg_free(msg); 2793 return -ENOBUFS; 2794} 2795 2796 2797static 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 2833static 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 2886int 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 2912static 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 2932static 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 2958static 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 3004static 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 3023static 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 3053retry: 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->auth_data) { 3099 wpa_hexdump(MSG_DEBUG, " * auth_data", params->auth_data, 3100 params->auth_data_len); 3101 if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->auth_data_len, 3102 params->auth_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 if (params->auth_alg & WPA_AUTH_ALG_FILS) 3116 type = NL80211_AUTHTYPE_FILS_SK; 3117 else 3118 goto fail; 3119 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 3120 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) 3121 goto fail; 3122 if (params->local_state_change) { 3123 wpa_printf(MSG_DEBUG, " * Local state change only"); 3124 if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE)) 3125 goto fail; 3126 } 3127 3128 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3129 msg = NULL; 3130 if (ret) { 3131 wpa_dbg(drv->ctx, MSG_DEBUG, 3132 "nl80211: MLME command failed (auth): ret=%d (%s)", 3133 ret, strerror(-ret)); 3134 count++; 3135 if (ret == -EALREADY && count == 1 && params->bssid && 3136 !params->local_state_change) { 3137 /* 3138 * mac80211 does not currently accept new 3139 * authentication if we are already authenticated. As a 3140 * workaround, force deauthentication and try again. 3141 */ 3142 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " 3143 "after forced deauthentication"); 3144 drv->ignore_deauth_event = 1; 3145 wpa_driver_nl80211_deauthenticate( 3146 bss, params->bssid, 3147 WLAN_REASON_PREV_AUTH_NOT_VALID); 3148 nlmsg_free(msg); 3149 goto retry; 3150 } 3151 3152 if (ret == -ENOENT && params->freq && !is_retry) { 3153 /* 3154 * cfg80211 has likely expired the BSS entry even 3155 * though it was previously available in our internal 3156 * BSS table. To recover quickly, start a single 3157 * channel scan on the specified channel. 3158 */ 3159 struct wpa_driver_scan_params scan; 3160 int freqs[2]; 3161 3162 os_memset(&scan, 0, sizeof(scan)); 3163 scan.num_ssids = 1; 3164 if (params->ssid) { 3165 scan.ssids[0].ssid = params->ssid; 3166 scan.ssids[0].ssid_len = params->ssid_len; 3167 } 3168 freqs[0] = params->freq; 3169 freqs[1] = 0; 3170 scan.freqs = freqs; 3171 wpa_printf(MSG_DEBUG, "nl80211: Trigger single " 3172 "channel scan to refresh cfg80211 BSS " 3173 "entry"); 3174 ret = wpa_driver_nl80211_scan(bss, &scan); 3175 if (ret == 0) { 3176 nl80211_copy_auth_params(drv, params); 3177 drv->scan_for_auth = 1; 3178 } 3179 } else if (is_retry) { 3180 /* 3181 * Need to indicate this with an event since the return 3182 * value from the retry is not delivered to core code. 3183 */ 3184 union wpa_event_data event; 3185 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " 3186 "failed"); 3187 os_memset(&event, 0, sizeof(event)); 3188 os_memcpy(event.timeout_event.addr, drv->auth_bssid_, 3189 ETH_ALEN); 3190 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, 3191 &event); 3192 } 3193 } else { 3194 wpa_printf(MSG_DEBUG, 3195 "nl80211: Authentication request send successfully"); 3196 } 3197 3198fail: 3199 nlmsg_free(msg); 3200 return ret; 3201} 3202 3203 3204int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv) 3205{ 3206 struct wpa_driver_auth_params params; 3207 struct i802_bss *bss = drv->first_bss; 3208 int i; 3209 3210 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); 3211 3212 os_memset(¶ms, 0, sizeof(params)); 3213 params.freq = drv->auth_freq; 3214 params.auth_alg = drv->auth_alg; 3215 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; 3216 params.local_state_change = drv->auth_local_state_change; 3217 params.p2p = drv->auth_p2p; 3218 3219 if (!is_zero_ether_addr(drv->auth_bssid_)) 3220 params.bssid = drv->auth_bssid_; 3221 3222 if (drv->auth_ssid_len) { 3223 params.ssid = drv->auth_ssid; 3224 params.ssid_len = drv->auth_ssid_len; 3225 } 3226 3227 params.ie = drv->auth_ie; 3228 params.ie_len = drv->auth_ie_len; 3229 3230 for (i = 0; i < 4; i++) { 3231 if (drv->auth_wep_key_len[i]) { 3232 params.wep_key[i] = drv->auth_wep_key[i]; 3233 params.wep_key_len[i] = drv->auth_wep_key_len[i]; 3234 } 3235 } 3236 3237 drv->retry_auth = 1; 3238 return wpa_driver_nl80211_authenticate(bss, ¶ms); 3239} 3240 3241 3242static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, 3243 const void *data, size_t len, 3244 int encrypt, int noack, 3245 unsigned int freq, int no_cck, 3246 int offchanok, unsigned int wait_time, 3247 const u16 *csa_offs, 3248 size_t csa_offs_len) 3249{ 3250 struct wpa_driver_nl80211_data *drv = bss->drv; 3251 u64 cookie; 3252 int res; 3253 3254 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { 3255 freq = nl80211_get_assoc_freq(drv); 3256 wpa_printf(MSG_DEBUG, 3257 "nl80211: send_frame - Use assoc_freq=%u for IBSS", 3258 freq); 3259 } 3260 if (freq == 0) { 3261 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", 3262 bss->freq); 3263 freq = bss->freq; 3264 } 3265 3266 if (drv->use_monitor) { 3267 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor", 3268 freq, bss->freq); 3269 return nl80211_send_monitor(drv, data, len, encrypt, noack); 3270 } 3271 3272 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); 3273 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, 3274 &cookie, no_cck, noack, offchanok, 3275 csa_offs, csa_offs_len); 3276 if (res == 0 && !noack) { 3277 const struct ieee80211_mgmt *mgmt; 3278 u16 fc; 3279 3280 mgmt = (const struct ieee80211_mgmt *) data; 3281 fc = le_to_host16(mgmt->frame_control); 3282 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3283 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { 3284 wpa_printf(MSG_MSGDUMP, 3285 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", 3286 (long long unsigned int) 3287 drv->send_action_cookie, 3288 (long long unsigned int) cookie); 3289 drv->send_action_cookie = cookie; 3290 } 3291 } 3292 3293 return res; 3294} 3295 3296 3297static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, 3298 size_t data_len, int noack, 3299 unsigned int freq, int no_cck, 3300 int offchanok, 3301 unsigned int wait_time, 3302 const u16 *csa_offs, 3303 size_t csa_offs_len) 3304{ 3305 struct wpa_driver_nl80211_data *drv = bss->drv; 3306 struct ieee80211_mgmt *mgmt; 3307 int encrypt = 1; 3308 u16 fc; 3309 3310 mgmt = (struct ieee80211_mgmt *) data; 3311 fc = le_to_host16(mgmt->frame_control); 3312 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR 3313 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d", 3314 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time, 3315 fc, fc2str(fc), drv->nlmode); 3316 3317 if ((is_sta_interface(drv->nlmode) || 3318 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && 3319 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3320 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { 3321 /* 3322 * The use of last_mgmt_freq is a bit of a hack, 3323 * but it works due to the single-threaded nature 3324 * of wpa_supplicant. 3325 */ 3326 if (freq == 0) { 3327 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", 3328 drv->last_mgmt_freq); 3329 freq = drv->last_mgmt_freq; 3330 } 3331 return nl80211_send_frame_cmd(bss, freq, 0, 3332 data, data_len, NULL, 1, noack, 3333 1, csa_offs, csa_offs_len); 3334 } 3335 3336 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { 3337 if (freq == 0) { 3338 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", 3339 bss->freq); 3340 freq = bss->freq; 3341 } 3342 return nl80211_send_frame_cmd(bss, freq, 3343 (int) freq == bss->freq ? 0 : 3344 wait_time, 3345 data, data_len, 3346 &drv->send_action_cookie, 3347 no_cck, noack, offchanok, 3348 csa_offs, csa_offs_len); 3349 } 3350 3351 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3352 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { 3353 /* 3354 * Only one of the authentication frame types is encrypted. 3355 * In order for static WEP encryption to work properly (i.e., 3356 * to not encrypt the frame), we need to tell mac80211 about 3357 * the frames that must not be encrypted. 3358 */ 3359 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); 3360 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); 3361 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) 3362 encrypt = 0; 3363 } 3364 3365 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); 3366 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 3367 noack, freq, no_cck, offchanok, 3368 wait_time, csa_offs, 3369 csa_offs_len); 3370} 3371 3372 3373static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates) 3374{ 3375 u8 rates[NL80211_MAX_SUPP_RATES]; 3376 u8 rates_len = 0; 3377 int i; 3378 3379 if (!basic_rates) 3380 return 0; 3381 3382 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++) 3383 rates[rates_len++] = basic_rates[i] / 5; 3384 3385 return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); 3386} 3387 3388 3389static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, 3390 int slot, int ht_opmode, int ap_isolate, 3391 const int *basic_rates) 3392{ 3393 struct wpa_driver_nl80211_data *drv = bss->drv; 3394 struct nl_msg *msg; 3395 3396 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) || 3397 (cts >= 0 && 3398 nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) || 3399 (preamble >= 0 && 3400 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) || 3401 (slot >= 0 && 3402 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) || 3403 (ht_opmode >= 0 && 3404 nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) || 3405 (ap_isolate >= 0 && 3406 nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) || 3407 nl80211_put_basic_rates(msg, basic_rates)) { 3408 nlmsg_free(msg); 3409 return -ENOBUFS; 3410 } 3411 3412 return send_and_recv_msgs(drv, msg, NULL, NULL); 3413} 3414 3415 3416static int wpa_driver_nl80211_set_acl(void *priv, 3417 struct hostapd_acl_params *params) 3418{ 3419 struct i802_bss *bss = priv; 3420 struct wpa_driver_nl80211_data *drv = bss->drv; 3421 struct nl_msg *msg; 3422 struct nl_msg *acl; 3423 unsigned int i; 3424 int ret; 3425 3426 if (!(drv->capa.max_acl_mac_addrs)) 3427 return -ENOTSUP; 3428 3429 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) 3430 return -ENOTSUP; 3431 3432 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", 3433 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); 3434 3435 acl = nlmsg_alloc(); 3436 if (!acl) 3437 return -ENOMEM; 3438 for (i = 0; i < params->num_mac_acl; i++) { 3439 if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) { 3440 nlmsg_free(acl); 3441 return -ENOMEM; 3442 } 3443 } 3444 3445 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) || 3446 nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? 3447 NL80211_ACL_POLICY_DENY_UNLESS_LISTED : 3448 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) || 3449 nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) { 3450 nlmsg_free(msg); 3451 nlmsg_free(acl); 3452 return -ENOMEM; 3453 } 3454 nlmsg_free(acl); 3455 3456 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3457 if (ret) { 3458 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", 3459 ret, strerror(-ret)); 3460 } 3461 3462 return ret; 3463} 3464 3465 3466static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int) 3467{ 3468 if (beacon_int > 0) { 3469 wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int); 3470 return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL, 3471 beacon_int); 3472 } 3473 3474 return 0; 3475} 3476 3477 3478static int nl80211_put_dtim_period(struct nl_msg *msg, int dtim_period) 3479{ 3480 if (dtim_period > 0) { 3481 wpa_printf(MSG_DEBUG, " * dtim_period=%d", dtim_period); 3482 return nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period); 3483 } 3484 3485 return 0; 3486} 3487 3488 3489#ifdef CONFIG_MESH 3490static int nl80211_set_mesh_config(void *priv, 3491 struct wpa_driver_mesh_bss_params *params) 3492{ 3493 struct i802_bss *bss = priv; 3494 struct wpa_driver_nl80211_data *drv = bss->drv; 3495 struct nl_msg *msg; 3496 int ret; 3497 3498 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG); 3499 if (!msg) 3500 return -1; 3501 3502 ret = nl80211_put_mesh_config(msg, params); 3503 if (ret < 0) { 3504 nlmsg_free(msg); 3505 return ret; 3506 } 3507 3508 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3509 if (ret) { 3510 wpa_printf(MSG_ERROR, 3511 "nl80211: Mesh config set failed: %d (%s)", 3512 ret, strerror(-ret)); 3513 return ret; 3514 } 3515 return 0; 3516} 3517#endif /* CONFIG_MESH */ 3518 3519 3520static int wpa_driver_nl80211_set_ap(void *priv, 3521 struct wpa_driver_ap_params *params) 3522{ 3523 struct i802_bss *bss = priv; 3524 struct wpa_driver_nl80211_data *drv = bss->drv; 3525 struct nl_msg *msg; 3526 u8 cmd = NL80211_CMD_NEW_BEACON; 3527 int ret; 3528 int beacon_set; 3529 int num_suites; 3530 int smps_mode; 3531 u32 suites[10], suite; 3532 u32 ver; 3533#ifdef CONFIG_MESH 3534 struct wpa_driver_mesh_bss_params mesh_params; 3535#endif /* CONFIG_MESH */ 3536 3537 beacon_set = params->reenable ? 0 : bss->beacon_set; 3538 3539 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", 3540 beacon_set); 3541 if (beacon_set) 3542 cmd = NL80211_CMD_SET_BEACON; 3543 3544 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", 3545 params->head, params->head_len); 3546 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", 3547 params->tail, params->tail_len); 3548 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex); 3549 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); 3550 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); 3551 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", 3552 params->ssid, params->ssid_len); 3553 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || 3554 nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, 3555 params->head) || 3556 nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, 3557 params->tail) || 3558 nl80211_put_beacon_int(msg, params->beacon_int) || 3559 nl80211_put_dtim_period(msg, params->dtim_period) || 3560 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) 3561 goto fail; 3562 if (params->proberesp && params->proberesp_len) { 3563 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", 3564 params->proberesp, params->proberesp_len); 3565 if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, 3566 params->proberesp)) 3567 goto fail; 3568 } 3569 switch (params->hide_ssid) { 3570 case NO_SSID_HIDING: 3571 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); 3572 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3573 NL80211_HIDDEN_SSID_NOT_IN_USE)) 3574 goto fail; 3575 break; 3576 case HIDDEN_SSID_ZERO_LEN: 3577 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); 3578 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3579 NL80211_HIDDEN_SSID_ZERO_LEN)) 3580 goto fail; 3581 break; 3582 case HIDDEN_SSID_ZERO_CONTENTS: 3583 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); 3584 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, 3585 NL80211_HIDDEN_SSID_ZERO_CONTENTS)) 3586 goto fail; 3587 break; 3588 } 3589 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); 3590 if (params->privacy && 3591 nla_put_flag(msg, NL80211_ATTR_PRIVACY)) 3592 goto fail; 3593 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); 3594 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == 3595 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { 3596 /* Leave out the attribute */ 3597 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) { 3598 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, 3599 NL80211_AUTHTYPE_SHARED_KEY)) 3600 goto fail; 3601 } else { 3602 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, 3603 NL80211_AUTHTYPE_OPEN_SYSTEM)) 3604 goto fail; 3605 } 3606 3607 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); 3608 ver = 0; 3609 if (params->wpa_version & WPA_PROTO_WPA) 3610 ver |= NL80211_WPA_VERSION_1; 3611 if (params->wpa_version & WPA_PROTO_RSN) 3612 ver |= NL80211_WPA_VERSION_2; 3613 if (ver && 3614 nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) 3615 goto fail; 3616 3617 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", 3618 params->key_mgmt_suites); 3619 num_suites = 0; 3620 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) 3621 suites[num_suites++] = WLAN_AKM_SUITE_8021X; 3622 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) 3623 suites[num_suites++] = WLAN_AKM_SUITE_PSK; 3624 if (num_suites && 3625 nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32), 3626 suites)) 3627 goto fail; 3628 3629 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA && 3630 (!params->pairwise_ciphers || 3631 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) && 3632 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || 3633 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) 3634 goto fail; 3635 3636 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", 3637 params->pairwise_ciphers); 3638 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, 3639 suites, ARRAY_SIZE(suites)); 3640 if (num_suites && 3641 nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 3642 num_suites * sizeof(u32), suites)) 3643 goto fail; 3644 3645 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", 3646 params->group_cipher); 3647 suite = wpa_cipher_to_cipher_suite(params->group_cipher); 3648 if (suite && 3649 nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite)) 3650 goto fail; 3651 3652 if (params->ht_opmode != -1) { 3653 switch (params->smps_mode) { 3654 case HT_CAP_INFO_SMPS_DYNAMIC: 3655 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - dynamic"); 3656 smps_mode = NL80211_SMPS_DYNAMIC; 3657 break; 3658 case HT_CAP_INFO_SMPS_STATIC: 3659 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - static"); 3660 smps_mode = NL80211_SMPS_STATIC; 3661 break; 3662 default: 3663 /* invalid - fallback to smps off */ 3664 case HT_CAP_INFO_SMPS_DISABLED: 3665 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - off"); 3666 smps_mode = NL80211_SMPS_OFF; 3667 break; 3668 } 3669 if (nla_put_u32(msg, NL80211_ATTR_SMPS_MODE, smps_mode)) 3670 goto fail; 3671 } 3672 3673 if (params->beacon_ies) { 3674 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", 3675 params->beacon_ies); 3676 if (nla_put(msg, NL80211_ATTR_IE, 3677 wpabuf_len(params->beacon_ies), 3678 wpabuf_head(params->beacon_ies))) 3679 goto fail; 3680 } 3681 if (params->proberesp_ies) { 3682 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", 3683 params->proberesp_ies); 3684 if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, 3685 wpabuf_len(params->proberesp_ies), 3686 wpabuf_head(params->proberesp_ies))) 3687 goto fail; 3688 } 3689 if (params->assocresp_ies) { 3690 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", 3691 params->assocresp_ies); 3692 if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, 3693 wpabuf_len(params->assocresp_ies), 3694 wpabuf_head(params->assocresp_ies))) 3695 goto fail; 3696 } 3697 3698 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { 3699 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", 3700 params->ap_max_inactivity); 3701 if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, 3702 params->ap_max_inactivity)) 3703 goto fail; 3704 } 3705 3706#ifdef CONFIG_P2P 3707 if (params->p2p_go_ctwindow > 0) { 3708 if (drv->p2p_go_ctwindow_supported) { 3709 wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d", 3710 params->p2p_go_ctwindow); 3711 if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW, 3712 params->p2p_go_ctwindow)) 3713 goto fail; 3714 } else { 3715 wpa_printf(MSG_INFO, 3716 "nl80211: Driver does not support CTWindow configuration - ignore this parameter"); 3717 } 3718 } 3719#endif /* CONFIG_P2P */ 3720 3721 if (params->pbss) { 3722 wpa_printf(MSG_DEBUG, "nl80211: PBSS"); 3723 if (nla_put_flag(msg, NL80211_ATTR_PBSS)) 3724 goto fail; 3725 } 3726 3727 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3728 if (ret) { 3729 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", 3730 ret, strerror(-ret)); 3731 } else { 3732 bss->beacon_set = 1; 3733 nl80211_set_bss(bss, params->cts_protect, params->preamble, 3734 params->short_slot_time, params->ht_opmode, 3735 params->isolate, params->basic_rates); 3736 if (beacon_set && params->freq && 3737 params->freq->bandwidth != bss->bandwidth) { 3738 wpa_printf(MSG_DEBUG, 3739 "nl80211: Update BSS %s bandwidth: %d -> %d", 3740 bss->ifname, bss->bandwidth, 3741 params->freq->bandwidth); 3742 ret = nl80211_set_channel(bss, params->freq, 1); 3743 if (ret) { 3744 wpa_printf(MSG_DEBUG, 3745 "nl80211: Frequency set failed: %d (%s)", 3746 ret, strerror(-ret)); 3747 } else { 3748 wpa_printf(MSG_DEBUG, 3749 "nl80211: Frequency set succeeded for ht2040 coex"); 3750 bss->bandwidth = params->freq->bandwidth; 3751 } 3752 } else if (!beacon_set && params->freq) { 3753 /* 3754 * cfg80211 updates the driver on frequence change in AP 3755 * mode only at the point when beaconing is started, so 3756 * set the initial value here. 3757 */ 3758 bss->bandwidth = params->freq->bandwidth; 3759 } 3760 } 3761 3762#ifdef CONFIG_MESH 3763 if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) { 3764 os_memset(&mesh_params, 0, sizeof(mesh_params)); 3765 mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE; 3766 mesh_params.ht_opmode = params->ht_opmode; 3767 ret = nl80211_set_mesh_config(priv, &mesh_params); 3768 if (ret < 0) 3769 return ret; 3770 } 3771#endif /* CONFIG_MESH */ 3772 3773 return ret; 3774fail: 3775 nlmsg_free(msg); 3776 return -ENOBUFS; 3777} 3778 3779 3780static int nl80211_put_freq_params(struct nl_msg *msg, 3781 const struct hostapd_freq_params *freq) 3782{ 3783 wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq); 3784 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq)) 3785 return -ENOBUFS; 3786 3787 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled); 3788 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled); 3789 3790 if (freq->vht_enabled) { 3791 enum nl80211_chan_width cw; 3792 3793 wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth); 3794 switch (freq->bandwidth) { 3795 case 20: 3796 cw = NL80211_CHAN_WIDTH_20; 3797 break; 3798 case 40: 3799 cw = NL80211_CHAN_WIDTH_40; 3800 break; 3801 case 80: 3802 if (freq->center_freq2) 3803 cw = NL80211_CHAN_WIDTH_80P80; 3804 else 3805 cw = NL80211_CHAN_WIDTH_80; 3806 break; 3807 case 160: 3808 cw = NL80211_CHAN_WIDTH_160; 3809 break; 3810 default: 3811 return -EINVAL; 3812 } 3813 3814 wpa_printf(MSG_DEBUG, " * channel_width=%d", cw); 3815 wpa_printf(MSG_DEBUG, " * center_freq1=%d", 3816 freq->center_freq1); 3817 wpa_printf(MSG_DEBUG, " * center_freq2=%d", 3818 freq->center_freq2); 3819 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) || 3820 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, 3821 freq->center_freq1) || 3822 (freq->center_freq2 && 3823 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, 3824 freq->center_freq2))) 3825 return -ENOBUFS; 3826 } else if (freq->ht_enabled) { 3827 enum nl80211_channel_type ct; 3828 3829 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d", 3830 freq->sec_channel_offset); 3831 switch (freq->sec_channel_offset) { 3832 case -1: 3833 ct = NL80211_CHAN_HT40MINUS; 3834 break; 3835 case 1: 3836 ct = NL80211_CHAN_HT40PLUS; 3837 break; 3838 default: 3839 ct = NL80211_CHAN_HT20; 3840 break; 3841 } 3842 3843 wpa_printf(MSG_DEBUG, " * channel_type=%d", ct); 3844 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct)) 3845 return -ENOBUFS; 3846 } else { 3847 wpa_printf(MSG_DEBUG, " * channel_type=%d", 3848 NL80211_CHAN_NO_HT); 3849 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, 3850 NL80211_CHAN_NO_HT)) 3851 return -ENOBUFS; 3852 } 3853 return 0; 3854} 3855 3856 3857static int nl80211_set_channel(struct i802_bss *bss, 3858 struct hostapd_freq_params *freq, int set_chan) 3859{ 3860 struct wpa_driver_nl80211_data *drv = bss->drv; 3861 struct nl_msg *msg; 3862 int ret; 3863 3864 wpa_printf(MSG_DEBUG, 3865 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", 3866 freq->freq, freq->ht_enabled, freq->vht_enabled, 3867 freq->bandwidth, freq->center_freq1, freq->center_freq2); 3868 3869 msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL : 3870 NL80211_CMD_SET_WIPHY); 3871 if (!msg || nl80211_put_freq_params(msg, freq) < 0) { 3872 nlmsg_free(msg); 3873 return -1; 3874 } 3875 3876 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 3877 if (ret == 0) { 3878 bss->freq = freq->freq; 3879 return 0; 3880 } 3881 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " 3882 "%d (%s)", freq->freq, ret, strerror(-ret)); 3883 return -1; 3884} 3885 3886 3887static u32 sta_flags_nl80211(int flags) 3888{ 3889 u32 f = 0; 3890 3891 if (flags & WPA_STA_AUTHORIZED) 3892 f |= BIT(NL80211_STA_FLAG_AUTHORIZED); 3893 if (flags & WPA_STA_WMM) 3894 f |= BIT(NL80211_STA_FLAG_WME); 3895 if (flags & WPA_STA_SHORT_PREAMBLE) 3896 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 3897 if (flags & WPA_STA_MFP) 3898 f |= BIT(NL80211_STA_FLAG_MFP); 3899 if (flags & WPA_STA_TDLS_PEER) 3900 f |= BIT(NL80211_STA_FLAG_TDLS_PEER); 3901 if (flags & WPA_STA_AUTHENTICATED) 3902 f |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 3903 if (flags & WPA_STA_ASSOCIATED) 3904 f |= BIT(NL80211_STA_FLAG_ASSOCIATED); 3905 3906 return f; 3907} 3908 3909 3910#ifdef CONFIG_MESH 3911static u32 sta_plink_state_nl80211(enum mesh_plink_state state) 3912{ 3913 switch (state) { 3914 case PLINK_IDLE: 3915 return NL80211_PLINK_LISTEN; 3916 case PLINK_OPN_SNT: 3917 return NL80211_PLINK_OPN_SNT; 3918 case PLINK_OPN_RCVD: 3919 return NL80211_PLINK_OPN_RCVD; 3920 case PLINK_CNF_RCVD: 3921 return NL80211_PLINK_CNF_RCVD; 3922 case PLINK_ESTAB: 3923 return NL80211_PLINK_ESTAB; 3924 case PLINK_HOLDING: 3925 return NL80211_PLINK_HOLDING; 3926 case PLINK_BLOCKED: 3927 return NL80211_PLINK_BLOCKED; 3928 default: 3929 wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d", 3930 state); 3931 } 3932 return -1; 3933} 3934#endif /* CONFIG_MESH */ 3935 3936 3937static int wpa_driver_nl80211_sta_add(void *priv, 3938 struct hostapd_sta_add_params *params) 3939{ 3940 struct i802_bss *bss = priv; 3941 struct wpa_driver_nl80211_data *drv = bss->drv; 3942 struct nl_msg *msg; 3943 struct nl80211_sta_flag_update upd; 3944 int ret = -ENOBUFS; 3945 3946 if ((params->flags & WPA_STA_TDLS_PEER) && 3947 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 3948 return -EOPNOTSUPP; 3949 3950 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, 3951 params->set ? "Set" : "Add", MAC2STR(params->addr)); 3952 msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION : 3953 NL80211_CMD_NEW_STATION); 3954 if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr)) 3955 goto fail; 3956 3957 /* 3958 * Set the below properties only in one of the following cases: 3959 * 1. New station is added, already associated. 3960 * 2. Set WPA_STA_TDLS_PEER station. 3961 * 3. Set an already added unassociated station, if driver supports 3962 * full AP client state. (Set these properties after station became 3963 * associated will be rejected by the driver). 3964 */ 3965 if (!params->set || (params->flags & WPA_STA_TDLS_PEER) || 3966 (params->set && FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && 3967 (params->flags & WPA_STA_ASSOCIATED))) { 3968 wpa_hexdump(MSG_DEBUG, " * supported rates", 3969 params->supp_rates, params->supp_rates_len); 3970 wpa_printf(MSG_DEBUG, " * capability=0x%x", 3971 params->capability); 3972 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES, 3973 params->supp_rates_len, params->supp_rates) || 3974 nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY, 3975 params->capability)) 3976 goto fail; 3977 3978 if (params->ht_capabilities) { 3979 wpa_hexdump(MSG_DEBUG, " * ht_capabilities", 3980 (u8 *) params->ht_capabilities, 3981 sizeof(*params->ht_capabilities)); 3982 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, 3983 sizeof(*params->ht_capabilities), 3984 params->ht_capabilities)) 3985 goto fail; 3986 } 3987 3988 if (params->vht_capabilities) { 3989 wpa_hexdump(MSG_DEBUG, " * vht_capabilities", 3990 (u8 *) params->vht_capabilities, 3991 sizeof(*params->vht_capabilities)); 3992 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, 3993 sizeof(*params->vht_capabilities), 3994 params->vht_capabilities)) 3995 goto fail; 3996 } 3997 3998 if (params->ext_capab) { 3999 wpa_hexdump(MSG_DEBUG, " * ext_capab", 4000 params->ext_capab, params->ext_capab_len); 4001 if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY, 4002 params->ext_capab_len, params->ext_capab)) 4003 goto fail; 4004 } 4005 4006 if (is_ap_interface(drv->nlmode) && 4007 nla_put_u8(msg, NL80211_ATTR_STA_SUPPORT_P2P_PS, 4008 params->support_p2p_ps ? 4009 NL80211_P2P_PS_SUPPORTED : 4010 NL80211_P2P_PS_UNSUPPORTED)) 4011 goto fail; 4012 } 4013 if (!params->set) { 4014 if (params->aid) { 4015 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 4016 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid)) 4017 goto fail; 4018 } else { 4019 /* 4020 * cfg80211 validates that AID is non-zero, so we have 4021 * to make this a non-zero value for the TDLS case where 4022 * a dummy STA entry is used for now and for a station 4023 * that is still not associated. 4024 */ 4025 wpa_printf(MSG_DEBUG, " * aid=1 (%s workaround)", 4026 (params->flags & WPA_STA_TDLS_PEER) ? 4027 "TDLS" : "UNASSOC_STA"); 4028 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1)) 4029 goto fail; 4030 } 4031 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 4032 params->listen_interval); 4033 if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 4034 params->listen_interval)) 4035 goto fail; 4036 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { 4037 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); 4038 if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid)) 4039 goto fail; 4040 } else if (FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && 4041 (params->flags & WPA_STA_ASSOCIATED)) { 4042 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); 4043 wpa_printf(MSG_DEBUG, " * listen_interval=%u", 4044 params->listen_interval); 4045 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid) || 4046 nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 4047 params->listen_interval)) 4048 goto fail; 4049 } 4050 4051 if (params->vht_opmode_enabled) { 4052 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); 4053 if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF, 4054 params->vht_opmode)) 4055 goto fail; 4056 } 4057 4058 if (params->supp_channels) { 4059 wpa_hexdump(MSG_DEBUG, " * supported channels", 4060 params->supp_channels, params->supp_channels_len); 4061 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, 4062 params->supp_channels_len, params->supp_channels)) 4063 goto fail; 4064 } 4065 4066 if (params->supp_oper_classes) { 4067 wpa_hexdump(MSG_DEBUG, " * supported operating classes", 4068 params->supp_oper_classes, 4069 params->supp_oper_classes_len); 4070 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, 4071 params->supp_oper_classes_len, 4072 params->supp_oper_classes)) 4073 goto fail; 4074 } 4075 4076 os_memset(&upd, 0, sizeof(upd)); 4077 upd.set = sta_flags_nl80211(params->flags); 4078 upd.mask = upd.set | sta_flags_nl80211(params->flags_mask); 4079 4080 /* 4081 * If the driver doesn't support full AP client state, ignore ASSOC/AUTH 4082 * flags, as nl80211 driver moves a new station, by default, into 4083 * associated state. 4084 * 4085 * On the other hand, if the driver supports that feature and the 4086 * station is added in unauthenticated state, set the 4087 * authenticated/associated bits in the mask to prevent moving this 4088 * station to associated state before it is actually associated. 4089 * 4090 * This is irrelevant for mesh mode where the station is added to the 4091 * driver as authenticated already, and ASSOCIATED isn't part of the 4092 * nl80211 API. 4093 */ 4094 if (!is_mesh_interface(drv->nlmode)) { 4095 if (!FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) { 4096 wpa_printf(MSG_DEBUG, 4097 "nl80211: Ignore ASSOC/AUTH flags since driver doesn't support full AP client state"); 4098 upd.mask &= ~(BIT(NL80211_STA_FLAG_ASSOCIATED) | 4099 BIT(NL80211_STA_FLAG_AUTHENTICATED)); 4100 } else if (!params->set && 4101 !(params->flags & WPA_STA_TDLS_PEER)) { 4102 if (!(params->flags & WPA_STA_AUTHENTICATED)) 4103 upd.mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 4104 if (!(params->flags & WPA_STA_ASSOCIATED)) 4105 upd.mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 4106 } 4107#ifdef CONFIG_MESH 4108 } else { 4109 if (params->plink_state == PLINK_ESTAB && params->peer_aid) { 4110 ret = nla_put_u16(msg, NL80211_ATTR_MESH_PEER_AID, 4111 params->peer_aid); 4112 if (ret) 4113 goto fail; 4114 } 4115#endif /* CONFIG_MESH */ 4116 } 4117 4118 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", 4119 upd.set, upd.mask); 4120 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) 4121 goto fail; 4122 4123#ifdef CONFIG_MESH 4124 if (params->plink_state && 4125 nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE, 4126 sta_plink_state_nl80211(params->plink_state))) 4127 goto fail; 4128#endif /* CONFIG_MESH */ 4129 4130 if (params->flags & WPA_STA_WMM) { 4131 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); 4132 4133 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); 4134 if (!wme || 4135 nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, 4136 params->qosinfo & WMM_QOSINFO_STA_AC_MASK) || 4137 nla_put_u8(msg, NL80211_STA_WME_MAX_SP, 4138 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & 4139 WMM_QOSINFO_STA_SP_MASK)) 4140 goto fail; 4141 nla_nest_end(msg, wme); 4142 } 4143 4144 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4145 msg = NULL; 4146 if (ret) 4147 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " 4148 "result: %d (%s)", params->set ? "SET" : "NEW", ret, 4149 strerror(-ret)); 4150 if (ret == -EEXIST) 4151 ret = 0; 4152fail: 4153 nlmsg_free(msg); 4154 return ret; 4155} 4156 4157 4158static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr) 4159{ 4160#ifdef CONFIG_LIBNL3_ROUTE 4161 struct wpa_driver_nl80211_data *drv = bss->drv; 4162 struct rtnl_neigh *rn; 4163 struct nl_addr *nl_addr; 4164 int err; 4165 4166 rn = rtnl_neigh_alloc(); 4167 if (!rn) 4168 return; 4169 4170 rtnl_neigh_set_family(rn, AF_BRIDGE); 4171 rtnl_neigh_set_ifindex(rn, bss->ifindex); 4172 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN); 4173 if (!nl_addr) { 4174 rtnl_neigh_put(rn); 4175 return; 4176 } 4177 rtnl_neigh_set_lladdr(rn, nl_addr); 4178 4179 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); 4180 if (err < 0) { 4181 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for " 4182 MACSTR " ifindex=%d failed: %s", MAC2STR(addr), 4183 bss->ifindex, nl_geterror(err)); 4184 } else { 4185 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for " 4186 MACSTR, MAC2STR(addr)); 4187 } 4188 4189 nl_addr_put(nl_addr); 4190 rtnl_neigh_put(rn); 4191#endif /* CONFIG_LIBNL3_ROUTE */ 4192} 4193 4194 4195static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr, 4196 int deauth, u16 reason_code) 4197{ 4198 struct wpa_driver_nl80211_data *drv = bss->drv; 4199 struct nl_msg *msg; 4200 int ret; 4201 4202 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) || 4203 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 4204 (deauth == 0 && 4205 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4206 WLAN_FC_STYPE_DISASSOC)) || 4207 (deauth == 1 && 4208 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4209 WLAN_FC_STYPE_DEAUTH)) || 4210 (reason_code && 4211 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) { 4212 nlmsg_free(msg); 4213 return -ENOBUFS; 4214 } 4215 4216 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4217 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR 4218 " --> %d (%s)", 4219 bss->ifname, MAC2STR(addr), ret, strerror(-ret)); 4220 4221 if (drv->rtnl_sk) 4222 rtnl_neigh_delete_fdb_entry(bss, addr); 4223 4224 if (ret == -ENOENT) 4225 return 0; 4226 return ret; 4227} 4228 4229 4230void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx) 4231{ 4232 struct nl_msg *msg; 4233 struct wpa_driver_nl80211_data *drv2; 4234 4235 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); 4236 4237 /* stop listening for EAPOL on this interface */ 4238 dl_list_for_each(drv2, &drv->global->interfaces, 4239 struct wpa_driver_nl80211_data, list) 4240 { 4241 del_ifidx(drv2, ifidx, IFIDX_ANY); 4242 /* Remove all bridges learned for this iface */ 4243 del_ifidx(drv2, IFIDX_ANY, ifidx); 4244 } 4245 4246 msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE); 4247 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 4248 return; 4249 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); 4250} 4251 4252 4253const char * nl80211_iftype_str(enum nl80211_iftype mode) 4254{ 4255 switch (mode) { 4256 case NL80211_IFTYPE_ADHOC: 4257 return "ADHOC"; 4258 case NL80211_IFTYPE_STATION: 4259 return "STATION"; 4260 case NL80211_IFTYPE_AP: 4261 return "AP"; 4262 case NL80211_IFTYPE_AP_VLAN: 4263 return "AP_VLAN"; 4264 case NL80211_IFTYPE_WDS: 4265 return "WDS"; 4266 case NL80211_IFTYPE_MONITOR: 4267 return "MONITOR"; 4268 case NL80211_IFTYPE_MESH_POINT: 4269 return "MESH_POINT"; 4270 case NL80211_IFTYPE_P2P_CLIENT: 4271 return "P2P_CLIENT"; 4272 case NL80211_IFTYPE_P2P_GO: 4273 return "P2P_GO"; 4274 case NL80211_IFTYPE_P2P_DEVICE: 4275 return "P2P_DEVICE"; 4276 default: 4277 return "unknown"; 4278 } 4279} 4280 4281 4282static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, 4283 const char *ifname, 4284 enum nl80211_iftype iftype, 4285 const u8 *addr, int wds, 4286 int (*handler)(struct nl_msg *, void *), 4287 void *arg) 4288{ 4289 struct nl_msg *msg; 4290 int ifidx; 4291 int ret = -ENOBUFS; 4292 4293 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", 4294 iftype, nl80211_iftype_str(iftype)); 4295 4296 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE); 4297 if (!msg || 4298 nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) || 4299 nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype)) 4300 goto fail; 4301 4302 if (iftype == NL80211_IFTYPE_MONITOR) { 4303 struct nlattr *flags; 4304 4305 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); 4306 if (!flags || 4307 nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES)) 4308 goto fail; 4309 4310 nla_nest_end(msg, flags); 4311 } else if (wds) { 4312 if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds)) 4313 goto fail; 4314 } 4315 4316 /* 4317 * Tell cfg80211 that the interface belongs to the socket that created 4318 * it, and the interface should be deleted when the socket is closed. 4319 */ 4320 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER)) 4321 goto fail; 4322 4323 ret = send_and_recv_msgs(drv, msg, handler, arg); 4324 msg = NULL; 4325 if (ret) { 4326 fail: 4327 nlmsg_free(msg); 4328 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", 4329 ifname, ret, strerror(-ret)); 4330 return ret; 4331 } 4332 4333 if (iftype == NL80211_IFTYPE_P2P_DEVICE) 4334 return 0; 4335 4336 ifidx = if_nametoindex(ifname); 4337 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", 4338 ifname, ifidx); 4339 4340 if (ifidx <= 0) 4341 return -1; 4342 4343 /* 4344 * Some virtual interfaces need to process EAPOL packets and events on 4345 * the parent interface. This is used mainly with hostapd. 4346 */ 4347 if (drv->hostapd || 4348 iftype == NL80211_IFTYPE_AP_VLAN || 4349 iftype == NL80211_IFTYPE_WDS || 4350 iftype == NL80211_IFTYPE_MONITOR) { 4351 /* start listening for EAPOL on this interface */ 4352 add_ifidx(drv, ifidx, IFIDX_ANY); 4353 } 4354 4355 if (addr && iftype != NL80211_IFTYPE_MONITOR && 4356 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { 4357 nl80211_remove_iface(drv, ifidx); 4358 return -1; 4359 } 4360 4361 return ifidx; 4362} 4363 4364 4365int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 4366 const char *ifname, enum nl80211_iftype iftype, 4367 const u8 *addr, int wds, 4368 int (*handler)(struct nl_msg *, void *), 4369 void *arg, int use_existing) 4370{ 4371 int ret; 4372 4373 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, 4374 arg); 4375 4376 /* if error occurred and interface exists already */ 4377 if (ret == -ENFILE && if_nametoindex(ifname)) { 4378 if (use_existing) { 4379 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", 4380 ifname); 4381 if (addr && iftype != NL80211_IFTYPE_MONITOR && 4382 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 4383 addr) < 0 && 4384 (linux_set_iface_flags(drv->global->ioctl_sock, 4385 ifname, 0) < 0 || 4386 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 4387 addr) < 0 || 4388 linux_set_iface_flags(drv->global->ioctl_sock, 4389 ifname, 1) < 0)) 4390 return -1; 4391 return -ENFILE; 4392 } 4393 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); 4394 4395 /* Try to remove the interface that was already there. */ 4396 nl80211_remove_iface(drv, if_nametoindex(ifname)); 4397 4398 /* Try to create the interface again */ 4399 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, 4400 wds, handler, arg); 4401 } 4402 4403 if (ret >= 0 && is_p2p_net_interface(iftype)) { 4404 wpa_printf(MSG_DEBUG, 4405 "nl80211: Interface %s created for P2P - disable 11b rates", 4406 ifname); 4407 nl80211_disable_11b_rates(drv, ret, 1); 4408 } 4409 4410 return ret; 4411} 4412 4413 4414static int nl80211_setup_ap(struct i802_bss *bss) 4415{ 4416 struct wpa_driver_nl80211_data *drv = bss->drv; 4417 4418 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", 4419 bss->ifname, drv->device_ap_sme, drv->use_monitor); 4420 4421 /* 4422 * Disable Probe Request reporting unless we need it in this way for 4423 * devices that include the AP SME, in the other case (unless using 4424 * monitor iface) we'll get it through the nl_mgmt socket instead. 4425 */ 4426 if (!drv->device_ap_sme) 4427 wpa_driver_nl80211_probe_req_report(bss, 0); 4428 4429 if (!drv->device_ap_sme && !drv->use_monitor) 4430 if (nl80211_mgmt_subscribe_ap(bss)) 4431 return -1; 4432 4433 if (drv->device_ap_sme && !drv->use_monitor) 4434 if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) 4435 wpa_printf(MSG_DEBUG, 4436 "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it"); 4437 4438 if (!drv->device_ap_sme && drv->use_monitor && 4439 nl80211_create_monitor_interface(drv) && 4440 !drv->device_ap_sme) 4441 return -1; 4442 4443 if (drv->device_ap_sme && 4444 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { 4445 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " 4446 "Probe Request frame reporting in AP mode"); 4447 /* Try to survive without this */ 4448 } 4449 4450 return 0; 4451} 4452 4453 4454static void nl80211_teardown_ap(struct i802_bss *bss) 4455{ 4456 struct wpa_driver_nl80211_data *drv = bss->drv; 4457 4458 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", 4459 bss->ifname, drv->device_ap_sme, drv->use_monitor); 4460 if (drv->device_ap_sme) { 4461 wpa_driver_nl80211_probe_req_report(bss, 0); 4462 if (!drv->use_monitor) 4463 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); 4464 } else if (drv->use_monitor) 4465 nl80211_remove_monitor_interface(drv); 4466 else 4467 nl80211_mgmt_unsubscribe(bss, "AP teardown"); 4468 4469 bss->beacon_set = 0; 4470} 4471 4472 4473static int nl80211_send_eapol_data(struct i802_bss *bss, 4474 const u8 *addr, const u8 *data, 4475 size_t data_len) 4476{ 4477 struct sockaddr_ll ll; 4478 int ret; 4479 4480 if (bss->drv->eapol_tx_sock < 0) { 4481 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); 4482 return -1; 4483 } 4484 4485 os_memset(&ll, 0, sizeof(ll)); 4486 ll.sll_family = AF_PACKET; 4487 ll.sll_ifindex = bss->ifindex; 4488 ll.sll_protocol = htons(ETH_P_PAE); 4489 ll.sll_halen = ETH_ALEN; 4490 os_memcpy(ll.sll_addr, addr, ETH_ALEN); 4491 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, 4492 (struct sockaddr *) &ll, sizeof(ll)); 4493 if (ret < 0) 4494 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", 4495 strerror(errno)); 4496 4497 return ret; 4498} 4499 4500 4501static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 4502 4503static int wpa_driver_nl80211_hapd_send_eapol( 4504 void *priv, const u8 *addr, const u8 *data, 4505 size_t data_len, int encrypt, const u8 *own_addr, u32 flags) 4506{ 4507 struct i802_bss *bss = priv; 4508 struct wpa_driver_nl80211_data *drv = bss->drv; 4509 struct ieee80211_hdr *hdr; 4510 size_t len; 4511 u8 *pos; 4512 int res; 4513 int qos = flags & WPA_STA_WMM; 4514 4515 if (drv->device_ap_sme || !drv->use_monitor) 4516 return nl80211_send_eapol_data(bss, addr, data, data_len); 4517 4518 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + 4519 data_len; 4520 hdr = os_zalloc(len); 4521 if (hdr == NULL) { 4522 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", 4523 (unsigned long) len); 4524 return -1; 4525 } 4526 4527 hdr->frame_control = 4528 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); 4529 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); 4530 if (encrypt) 4531 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); 4532 if (qos) { 4533 hdr->frame_control |= 4534 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); 4535 } 4536 4537 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); 4538 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 4539 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 4540 pos = (u8 *) (hdr + 1); 4541 4542 if (qos) { 4543 /* Set highest priority in QoS header */ 4544 pos[0] = 7; 4545 pos[1] = 0; 4546 pos += 2; 4547 } 4548 4549 memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); 4550 pos += sizeof(rfc1042_header); 4551 WPA_PUT_BE16(pos, ETH_P_PAE); 4552 pos += 2; 4553 memcpy(pos, data, data_len); 4554 4555 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, 4556 0, 0, 0, 0, NULL, 0); 4557 if (res < 0) { 4558 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " 4559 "failed: %d (%s)", 4560 (unsigned long) len, errno, strerror(errno)); 4561 } 4562 os_free(hdr); 4563 4564 return res; 4565} 4566 4567 4568static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, 4569 unsigned int total_flags, 4570 unsigned int flags_or, 4571 unsigned int flags_and) 4572{ 4573 struct i802_bss *bss = priv; 4574 struct nl_msg *msg; 4575 struct nlattr *flags; 4576 struct nl80211_sta_flag_update upd; 4577 4578 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR 4579 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d", 4580 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and, 4581 !!(total_flags & WPA_STA_AUTHORIZED)); 4582 4583 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 4584 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) 4585 goto fail; 4586 4587 /* 4588 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This 4589 * can be removed eventually. 4590 */ 4591 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); 4592 if (!flags || 4593 ((total_flags & WPA_STA_AUTHORIZED) && 4594 nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) || 4595 ((total_flags & WPA_STA_WMM) && 4596 nla_put_flag(msg, NL80211_STA_FLAG_WME)) || 4597 ((total_flags & WPA_STA_SHORT_PREAMBLE) && 4598 nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) || 4599 ((total_flags & WPA_STA_MFP) && 4600 nla_put_flag(msg, NL80211_STA_FLAG_MFP)) || 4601 ((total_flags & WPA_STA_TDLS_PEER) && 4602 nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER))) 4603 goto fail; 4604 4605 nla_nest_end(msg, flags); 4606 4607 os_memset(&upd, 0, sizeof(upd)); 4608 upd.mask = sta_flags_nl80211(flags_or | ~flags_and); 4609 upd.set = sta_flags_nl80211(flags_or); 4610 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) 4611 goto fail; 4612 4613 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 4614fail: 4615 nlmsg_free(msg); 4616 return -ENOBUFS; 4617} 4618 4619 4620static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, 4621 struct wpa_driver_associate_params *params) 4622{ 4623 enum nl80211_iftype nlmode, old_mode; 4624 4625 if (params->p2p) { 4626 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " 4627 "group (GO)"); 4628 nlmode = NL80211_IFTYPE_P2P_GO; 4629 } else 4630 nlmode = NL80211_IFTYPE_AP; 4631 4632 old_mode = drv->nlmode; 4633 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { 4634 nl80211_remove_monitor_interface(drv); 4635 return -1; 4636 } 4637 4638 if (params->freq.freq && 4639 nl80211_set_channel(drv->first_bss, ¶ms->freq, 0)) { 4640 if (old_mode != nlmode) 4641 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); 4642 nl80211_remove_monitor_interface(drv); 4643 return -1; 4644 } 4645 4646 return 0; 4647} 4648 4649 4650static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, 4651 int reset_mode) 4652{ 4653 struct nl_msg *msg; 4654 int ret; 4655 4656 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS); 4657 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4658 if (ret) { 4659 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " 4660 "(%s)", ret, strerror(-ret)); 4661 } else { 4662 wpa_printf(MSG_DEBUG, 4663 "nl80211: Leave IBSS request sent successfully"); 4664 } 4665 4666 if (reset_mode && 4667 wpa_driver_nl80211_set_mode(drv->first_bss, 4668 NL80211_IFTYPE_STATION)) { 4669 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 4670 "station mode"); 4671 } 4672 4673 return ret; 4674} 4675 4676 4677static int nl80211_ht_vht_overrides(struct nl_msg *msg, 4678 struct wpa_driver_associate_params *params) 4679{ 4680 if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT)) 4681 return -1; 4682 4683 if (params->htcaps && params->htcaps_mask) { 4684 int sz = sizeof(struct ieee80211_ht_capabilities); 4685 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); 4686 wpa_hexdump(MSG_DEBUG, " * htcaps_mask", 4687 params->htcaps_mask, sz); 4688 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz, 4689 params->htcaps) || 4690 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, 4691 params->htcaps_mask)) 4692 return -1; 4693 } 4694 4695#ifdef CONFIG_VHT_OVERRIDES 4696 if (params->disable_vht) { 4697 wpa_printf(MSG_DEBUG, " * VHT disabled"); 4698 if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT)) 4699 return -1; 4700 } 4701 4702 if (params->vhtcaps && params->vhtcaps_mask) { 4703 int sz = sizeof(struct ieee80211_vht_capabilities); 4704 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); 4705 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", 4706 params->vhtcaps_mask, sz); 4707 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz, 4708 params->vhtcaps) || 4709 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, 4710 params->vhtcaps_mask)) 4711 return -1; 4712 } 4713#endif /* CONFIG_VHT_OVERRIDES */ 4714 4715 return 0; 4716} 4717 4718 4719static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, 4720 struct wpa_driver_associate_params *params) 4721{ 4722 struct nl_msg *msg; 4723 int ret = -1; 4724 int count = 0; 4725 4726 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); 4727 4728 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, ¶ms->freq)) { 4729 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " 4730 "IBSS mode"); 4731 return -1; 4732 } 4733 4734retry: 4735 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) || 4736 params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) 4737 goto fail; 4738 4739 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4740 params->ssid, params->ssid_len); 4741 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) 4742 goto fail; 4743 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 4744 drv->ssid_len = params->ssid_len; 4745 4746 if (nl80211_put_freq_params(msg, ¶ms->freq) < 0 || 4747 nl80211_put_beacon_int(msg, params->beacon_int)) 4748 goto fail; 4749 4750 ret = nl80211_set_conn_keys(params, msg); 4751 if (ret) 4752 goto fail; 4753 4754 if (params->bssid && params->fixed_bssid) { 4755 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, 4756 MAC2STR(params->bssid)); 4757 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) 4758 goto fail; 4759 } 4760 4761 if (params->fixed_freq) { 4762 wpa_printf(MSG_DEBUG, " * fixed_freq"); 4763 if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED)) 4764 goto fail; 4765 } 4766 4767 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 4768 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 4769 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 4770 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { 4771 wpa_printf(MSG_DEBUG, " * control port"); 4772 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) 4773 goto fail; 4774 } 4775 4776 if (params->wpa_ie) { 4777 wpa_hexdump(MSG_DEBUG, 4778 " * Extra IEs for Beacon/Probe Response frames", 4779 params->wpa_ie, params->wpa_ie_len); 4780 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, 4781 params->wpa_ie)) 4782 goto fail; 4783 } 4784 4785 ret = nl80211_ht_vht_overrides(msg, params); 4786 if (ret < 0) 4787 goto fail; 4788 4789 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 4790 msg = NULL; 4791 if (ret) { 4792 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", 4793 ret, strerror(-ret)); 4794 count++; 4795 if (ret == -EALREADY && count == 1) { 4796 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " 4797 "forced leave"); 4798 nl80211_leave_ibss(drv, 0); 4799 nlmsg_free(msg); 4800 goto retry; 4801 } 4802 } else { 4803 wpa_printf(MSG_DEBUG, 4804 "nl80211: Join IBSS request sent successfully"); 4805 } 4806 4807fail: 4808 nlmsg_free(msg); 4809 return ret; 4810} 4811 4812 4813static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, 4814 struct wpa_driver_associate_params *params, 4815 struct nl_msg *msg) 4816{ 4817 if (params->bssid) { 4818 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, 4819 MAC2STR(params->bssid)); 4820 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) 4821 return -1; 4822 } 4823 4824 if (params->bssid_hint) { 4825 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, 4826 MAC2STR(params->bssid_hint)); 4827 if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, 4828 params->bssid_hint)) 4829 return -1; 4830 } 4831 4832 if (params->freq.freq) { 4833 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq); 4834 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, 4835 params->freq.freq)) 4836 return -1; 4837 drv->assoc_freq = params->freq.freq; 4838 } else 4839 drv->assoc_freq = 0; 4840 4841 if (params->freq_hint) { 4842 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); 4843 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, 4844 params->freq_hint)) 4845 return -1; 4846 } 4847 4848 if (params->bg_scan_period >= 0) { 4849 wpa_printf(MSG_DEBUG, " * bg scan period=%d", 4850 params->bg_scan_period); 4851 if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD, 4852 params->bg_scan_period)) 4853 return -1; 4854 } 4855 4856 if (params->ssid) { 4857 wpa_hexdump_ascii(MSG_DEBUG, " * SSID", 4858 params->ssid, params->ssid_len); 4859 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, 4860 params->ssid)) 4861 return -1; 4862 if (params->ssid_len > sizeof(drv->ssid)) 4863 return -1; 4864 os_memcpy(drv->ssid, params->ssid, params->ssid_len); 4865 drv->ssid_len = params->ssid_len; 4866 } 4867 4868 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); 4869 if (params->wpa_ie && 4870 nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie)) 4871 return -1; 4872 4873 if (params->wpa_proto) { 4874 enum nl80211_wpa_versions ver = 0; 4875 4876 if (params->wpa_proto & WPA_PROTO_WPA) 4877 ver |= NL80211_WPA_VERSION_1; 4878 if (params->wpa_proto & WPA_PROTO_RSN) 4879 ver |= NL80211_WPA_VERSION_2; 4880 4881 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); 4882 if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) 4883 return -1; 4884 } 4885 4886 if (params->pairwise_suite != WPA_CIPHER_NONE) { 4887 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); 4888 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); 4889 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, 4890 cipher)) 4891 return -1; 4892 } 4893 4894 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && 4895 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { 4896 /* 4897 * This is likely to work even though many drivers do not 4898 * advertise support for operations without GTK. 4899 */ 4900 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); 4901 } else if (params->group_suite != WPA_CIPHER_NONE) { 4902 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); 4903 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); 4904 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher)) 4905 return -1; 4906 } 4907 4908 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || 4909 params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 4910 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || 4911 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || 4912 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || 4913 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || 4914 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || 4915 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || 4916 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B || 4917 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { 4918 int mgmt = WLAN_AKM_SUITE_PSK; 4919 4920 switch (params->key_mgmt_suite) { 4921 case WPA_KEY_MGMT_CCKM: 4922 mgmt = WLAN_AKM_SUITE_CCKM; 4923 break; 4924 case WPA_KEY_MGMT_IEEE8021X: 4925 mgmt = WLAN_AKM_SUITE_8021X; 4926 break; 4927 case WPA_KEY_MGMT_FT_IEEE8021X: 4928 mgmt = WLAN_AKM_SUITE_FT_8021X; 4929 break; 4930 case WPA_KEY_MGMT_FT_PSK: 4931 mgmt = WLAN_AKM_SUITE_FT_PSK; 4932 break; 4933 case WPA_KEY_MGMT_IEEE8021X_SHA256: 4934 mgmt = WLAN_AKM_SUITE_8021X_SHA256; 4935 break; 4936 case WPA_KEY_MGMT_PSK_SHA256: 4937 mgmt = WLAN_AKM_SUITE_PSK_SHA256; 4938 break; 4939 case WPA_KEY_MGMT_OSEN: 4940 mgmt = WLAN_AKM_SUITE_OSEN; 4941 break; 4942 case WPA_KEY_MGMT_IEEE8021X_SUITE_B: 4943 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B; 4944 break; 4945 case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192: 4946 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B_192; 4947 break; 4948 case WPA_KEY_MGMT_PSK: 4949 default: 4950 mgmt = WLAN_AKM_SUITE_PSK; 4951 break; 4952 } 4953 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); 4954 if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt)) 4955 return -1; 4956 } 4957 4958 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) 4959 return -1; 4960 4961 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 4962 (params->pairwise_suite == WPA_CIPHER_NONE || 4963 params->pairwise_suite == WPA_CIPHER_WEP104 || 4964 params->pairwise_suite == WPA_CIPHER_WEP40) && 4965 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || 4966 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) 4967 return -1; 4968 4969 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED && 4970 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED)) 4971 return -1; 4972 4973 if (params->rrm_used) { 4974 u32 drv_rrm_flags = drv->capa.rrm_flags; 4975 if ((!((drv_rrm_flags & 4976 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) && 4977 (drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) && 4978 !(drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) || 4979 nla_put_flag(msg, NL80211_ATTR_USE_RRM)) 4980 return -1; 4981 } 4982 4983 if (nl80211_ht_vht_overrides(msg, params) < 0) 4984 return -1; 4985 4986 if (params->p2p) 4987 wpa_printf(MSG_DEBUG, " * P2P group"); 4988 4989 if (params->pbss) { 4990 wpa_printf(MSG_DEBUG, " * PBSS"); 4991 if (nla_put_flag(msg, NL80211_ATTR_PBSS)) 4992 return -1; 4993 } 4994 4995 drv->connect_reassoc = 0; 4996 if (params->prev_bssid) { 4997 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, 4998 MAC2STR(params->prev_bssid)); 4999 if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, 5000 params->prev_bssid)) 5001 return -1; 5002 drv->connect_reassoc = 1; 5003 } 5004 5005 return 0; 5006} 5007 5008 5009static int wpa_driver_nl80211_try_connect( 5010 struct wpa_driver_nl80211_data *drv, 5011 struct wpa_driver_associate_params *params) 5012{ 5013 struct nl_msg *msg; 5014 enum nl80211_auth_type type; 5015 int ret; 5016 int algs; 5017 5018#ifdef CONFIG_DRIVER_NL80211_QCA 5019 if (params->req_key_mgmt_offload && params->psk && 5020 (params->key_mgmt_suite == WPA_KEY_MGMT_PSK || 5021 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || 5022 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { 5023 wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK"); 5024 ret = issue_key_mgmt_set_key(drv, params->psk, 32); 5025 if (ret) 5026 return ret; 5027 } 5028#endif /* CONFIG_DRIVER_NL80211_QCA */ 5029 5030 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); 5031 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT); 5032 if (!msg) 5033 return -1; 5034 5035 ret = nl80211_connect_common(drv, params, msg); 5036 if (ret) 5037 goto fail; 5038 5039 algs = 0; 5040 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5041 algs++; 5042 if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5043 algs++; 5044 if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5045 algs++; 5046 if (algs > 1) { 5047 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " 5048 "selection"); 5049 goto skip_auth_type; 5050 } 5051 5052 if (params->auth_alg & WPA_AUTH_ALG_OPEN) 5053 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 5054 else if (params->auth_alg & WPA_AUTH_ALG_SHARED) 5055 type = NL80211_AUTHTYPE_SHARED_KEY; 5056 else if (params->auth_alg & WPA_AUTH_ALG_LEAP) 5057 type = NL80211_AUTHTYPE_NETWORK_EAP; 5058 else if (params->auth_alg & WPA_AUTH_ALG_FT) 5059 type = NL80211_AUTHTYPE_FT; 5060 else 5061 goto fail; 5062 5063 wpa_printf(MSG_DEBUG, " * Auth Type %d", type); 5064 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) 5065 goto fail; 5066 5067skip_auth_type: 5068 ret = nl80211_set_conn_keys(params, msg); 5069 if (ret) 5070 goto fail; 5071 5072 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5073 msg = NULL; 5074 if (ret) { 5075 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " 5076 "(%s)", ret, strerror(-ret)); 5077 } else { 5078 wpa_printf(MSG_DEBUG, 5079 "nl80211: Connect request send successfully"); 5080 } 5081 5082fail: 5083 nlmsg_free(msg); 5084 return ret; 5085 5086} 5087 5088 5089static int wpa_driver_nl80211_connect( 5090 struct wpa_driver_nl80211_data *drv, 5091 struct wpa_driver_associate_params *params) 5092{ 5093 int ret; 5094 5095 /* Store the connection attempted bssid for future use */ 5096 if (params->bssid) 5097 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); 5098 else 5099 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); 5100 5101 ret = wpa_driver_nl80211_try_connect(drv, params); 5102 if (ret == -EALREADY) { 5103 /* 5104 * cfg80211 does not currently accept new connections if 5105 * we are already connected. As a workaround, force 5106 * disconnection and try again. 5107 */ 5108 wpa_printf(MSG_DEBUG, "nl80211: Explicitly " 5109 "disconnecting before reassociation " 5110 "attempt"); 5111 if (wpa_driver_nl80211_disconnect( 5112 drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) 5113 return -1; 5114 ret = wpa_driver_nl80211_try_connect(drv, params); 5115 } 5116 return ret; 5117} 5118 5119 5120static int wpa_driver_nl80211_associate( 5121 void *priv, struct wpa_driver_associate_params *params) 5122{ 5123 struct i802_bss *bss = priv; 5124 struct wpa_driver_nl80211_data *drv = bss->drv; 5125 int ret = -1; 5126 struct nl_msg *msg; 5127 5128 nl80211_unmask_11b_rates(bss); 5129 5130 if (params->mode == IEEE80211_MODE_AP) 5131 return wpa_driver_nl80211_ap(drv, params); 5132 5133 if (params->mode == IEEE80211_MODE_IBSS) 5134 return wpa_driver_nl80211_ibss(drv, params); 5135 5136 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { 5137 enum nl80211_iftype nlmode = params->p2p ? 5138 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; 5139 5140 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) 5141 return -1; 5142 return wpa_driver_nl80211_connect(drv, params); 5143 } 5144 5145 nl80211_mark_disconnected(drv); 5146 5147 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", 5148 drv->ifindex); 5149 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE); 5150 if (!msg) 5151 return -1; 5152 5153 ret = nl80211_connect_common(drv, params, msg); 5154 if (ret) 5155 goto fail; 5156 5157 if (params->fils_kek) { 5158 wpa_printf(MSG_DEBUG, " * FILS KEK (len=%u)", 5159 (unsigned int) params->fils_kek_len); 5160 if (nla_put(msg, NL80211_ATTR_FILS_KEK, params->fils_kek_len, 5161 params->fils_kek)) 5162 goto fail; 5163 } 5164 if (params->fils_nonces) { 5165 wpa_hexdump(MSG_DEBUG, " * FILS nonces (for AAD)", 5166 params->fils_nonces, 5167 params->fils_nonces_len); 5168 if (nla_put(msg, NL80211_ATTR_FILS_NONCES, 5169 params->fils_nonces_len, params->fils_nonces)) 5170 goto fail; 5171 } 5172 5173 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5174 msg = NULL; 5175 if (ret) { 5176 wpa_dbg(drv->ctx, MSG_DEBUG, 5177 "nl80211: MLME command failed (assoc): ret=%d (%s)", 5178 ret, strerror(-ret)); 5179 nl80211_dump_scan(drv); 5180 } else { 5181 wpa_printf(MSG_DEBUG, 5182 "nl80211: Association request send successfully"); 5183 } 5184 5185fail: 5186 nlmsg_free(msg); 5187 return ret; 5188} 5189 5190 5191static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, 5192 int ifindex, enum nl80211_iftype mode) 5193{ 5194 struct nl_msg *msg; 5195 int ret = -ENOBUFS; 5196 5197 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", 5198 ifindex, mode, nl80211_iftype_str(mode)); 5199 5200 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE); 5201 if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode)) 5202 goto fail; 5203 5204 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5205 msg = NULL; 5206 if (!ret) 5207 return 0; 5208fail: 5209 nlmsg_free(msg); 5210 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" 5211 " %d (%s)", ifindex, mode, ret, strerror(-ret)); 5212 return ret; 5213} 5214 5215 5216static int wpa_driver_nl80211_set_mode_impl( 5217 struct i802_bss *bss, 5218 enum nl80211_iftype nlmode, 5219 struct hostapd_freq_params *desired_freq_params) 5220{ 5221 struct wpa_driver_nl80211_data *drv = bss->drv; 5222 int ret = -1; 5223 int i; 5224 int was_ap = is_ap_interface(drv->nlmode); 5225 int res; 5226 int mode_switch_res; 5227 5228 if (TEST_FAIL()) 5229 return -1; 5230 5231 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 5232 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss)) 5233 mode_switch_res = 0; 5234 5235 if (mode_switch_res == 0) { 5236 drv->nlmode = nlmode; 5237 ret = 0; 5238 goto done; 5239 } 5240 5241 if (mode_switch_res == -ENODEV) 5242 return -1; 5243 5244 if (nlmode == drv->nlmode) { 5245 wpa_printf(MSG_DEBUG, "nl80211: Interface already in " 5246 "requested mode - ignore error"); 5247 ret = 0; 5248 goto done; /* Already in the requested mode */ 5249 } 5250 5251 /* mac80211 doesn't allow mode changes while the device is up, so 5252 * take the device down, try to set the mode again, and bring the 5253 * device back up. 5254 */ 5255 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " 5256 "interface down"); 5257 for (i = 0; i < 10; i++) { 5258 res = i802_set_iface_flags(bss, 0); 5259 if (res == -EACCES || res == -ENODEV) 5260 break; 5261 if (res != 0) { 5262 wpa_printf(MSG_DEBUG, "nl80211: Failed to set " 5263 "interface down"); 5264 os_sleep(0, 100000); 5265 continue; 5266 } 5267 5268 /* 5269 * Setting the mode will fail for some drivers if the phy is 5270 * on a frequency that the mode is disallowed in. 5271 */ 5272 if (desired_freq_params) { 5273 res = nl80211_set_channel(bss, desired_freq_params, 0); 5274 if (res) { 5275 wpa_printf(MSG_DEBUG, 5276 "nl80211: Failed to set frequency on interface"); 5277 } 5278 } 5279 5280 /* Try to set the mode again while the interface is down */ 5281 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); 5282 if (mode_switch_res == -EBUSY) { 5283 wpa_printf(MSG_DEBUG, 5284 "nl80211: Delaying mode set while interface going down"); 5285 os_sleep(0, 100000); 5286 continue; 5287 } 5288 ret = mode_switch_res; 5289 break; 5290 } 5291 5292 if (!ret) { 5293 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " 5294 "interface is down"); 5295 drv->nlmode = nlmode; 5296 drv->ignore_if_down_event = 1; 5297 } 5298 5299 /* Bring the interface back up */ 5300 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); 5301 if (res != 0) { 5302 wpa_printf(MSG_DEBUG, 5303 "nl80211: Failed to set interface up after switching mode"); 5304 ret = -1; 5305 } 5306 5307done: 5308 if (ret) { 5309 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " 5310 "from %d failed", nlmode, drv->nlmode); 5311 return ret; 5312 } 5313 5314 if (is_p2p_net_interface(nlmode)) { 5315 wpa_printf(MSG_DEBUG, 5316 "nl80211: Interface %s mode change to P2P - disable 11b rates", 5317 bss->ifname); 5318 nl80211_disable_11b_rates(drv, drv->ifindex, 1); 5319 } else if (drv->disabled_11b_rates) { 5320 wpa_printf(MSG_DEBUG, 5321 "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates", 5322 bss->ifname); 5323 nl80211_disable_11b_rates(drv, drv->ifindex, 0); 5324 } 5325 5326 if (is_ap_interface(nlmode)) { 5327 nl80211_mgmt_unsubscribe(bss, "start AP"); 5328 /* Setup additional AP mode functionality if needed */ 5329 if (nl80211_setup_ap(bss)) 5330 return -1; 5331 } else if (was_ap) { 5332 /* Remove additional AP mode functionality */ 5333 nl80211_teardown_ap(bss); 5334 } else { 5335 nl80211_mgmt_unsubscribe(bss, "mode change"); 5336 } 5337 5338 if (is_mesh_interface(nlmode) && 5339 nl80211_mgmt_subscribe_mesh(bss)) 5340 return -1; 5341 5342 if (!bss->in_deinit && !is_ap_interface(nlmode) && 5343 !is_mesh_interface(nlmode) && 5344 nl80211_mgmt_subscribe_non_ap(bss) < 0) 5345 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " 5346 "frame processing - ignore for now"); 5347 5348 return 0; 5349} 5350 5351 5352int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 5353 enum nl80211_iftype nlmode) 5354{ 5355 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL); 5356} 5357 5358 5359static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, 5360 struct hostapd_freq_params *freq) 5361{ 5362 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC, 5363 freq); 5364} 5365 5366 5367static int wpa_driver_nl80211_get_capa(void *priv, 5368 struct wpa_driver_capa *capa) 5369{ 5370 struct i802_bss *bss = priv; 5371 struct wpa_driver_nl80211_data *drv = bss->drv; 5372 5373 if (!drv->has_capability) 5374 return -1; 5375 os_memcpy(capa, &drv->capa, sizeof(*capa)); 5376 if (drv->extended_capa && drv->extended_capa_mask) { 5377 capa->extended_capa = drv->extended_capa; 5378 capa->extended_capa_mask = drv->extended_capa_mask; 5379 capa->extended_capa_len = drv->extended_capa_len; 5380 } 5381 5382 return 0; 5383} 5384 5385 5386static int wpa_driver_nl80211_set_operstate(void *priv, int state) 5387{ 5388 struct i802_bss *bss = priv; 5389 struct wpa_driver_nl80211_data *drv = bss->drv; 5390 5391 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", 5392 bss->ifname, drv->operstate, state, 5393 state ? "UP" : "DORMANT"); 5394 drv->operstate = state; 5395 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, 5396 state ? IF_OPER_UP : IF_OPER_DORMANT); 5397} 5398 5399 5400static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) 5401{ 5402 struct i802_bss *bss = priv; 5403 struct wpa_driver_nl80211_data *drv = bss->drv; 5404 struct nl_msg *msg; 5405 struct nl80211_sta_flag_update upd; 5406 int ret; 5407 5408 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { 5409 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); 5410 return 0; 5411 } 5412 5413 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " 5414 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); 5415 5416 os_memset(&upd, 0, sizeof(upd)); 5417 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); 5418 if (authorized) 5419 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); 5420 5421 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 5422 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) || 5423 nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) { 5424 nlmsg_free(msg); 5425 return -ENOBUFS; 5426 } 5427 5428 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5429 if (!ret) 5430 return 0; 5431 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", 5432 ret, strerror(-ret)); 5433 return ret; 5434} 5435 5436 5437/* Set kernel driver on given frequency (MHz) */ 5438static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) 5439{ 5440 struct i802_bss *bss = priv; 5441 return nl80211_set_channel(bss, freq, 0); 5442} 5443 5444 5445static inline int min_int(int a, int b) 5446{ 5447 if (a < b) 5448 return a; 5449 return b; 5450} 5451 5452 5453static int get_key_handler(struct nl_msg *msg, void *arg) 5454{ 5455 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5456 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5457 5458 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5459 genlmsg_attrlen(gnlh, 0), NULL); 5460 5461 /* 5462 * TODO: validate the key index and mac address! 5463 * Otherwise, there's a race condition as soon as 5464 * the kernel starts sending key notifications. 5465 */ 5466 5467 if (tb[NL80211_ATTR_KEY_SEQ]) 5468 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), 5469 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); 5470 return NL_SKIP; 5471} 5472 5473 5474static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, 5475 int idx, u8 *seq) 5476{ 5477 struct i802_bss *bss = priv; 5478 struct wpa_driver_nl80211_data *drv = bss->drv; 5479 struct nl_msg *msg; 5480 5481 msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0, 5482 NL80211_CMD_GET_KEY); 5483 if (!msg || 5484 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || 5485 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) { 5486 nlmsg_free(msg); 5487 return -ENOBUFS; 5488 } 5489 5490 memset(seq, 0, 6); 5491 5492 return send_and_recv_msgs(drv, msg, get_key_handler, seq); 5493} 5494 5495 5496static int i802_set_rts(void *priv, int rts) 5497{ 5498 struct i802_bss *bss = priv; 5499 struct wpa_driver_nl80211_data *drv = bss->drv; 5500 struct nl_msg *msg; 5501 int ret; 5502 u32 val; 5503 5504 if (rts >= 2347) 5505 val = (u32) -1; 5506 else 5507 val = rts; 5508 5509 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || 5510 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) { 5511 nlmsg_free(msg); 5512 return -ENOBUFS; 5513 } 5514 5515 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5516 if (!ret) 5517 return 0; 5518 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " 5519 "%d (%s)", rts, ret, strerror(-ret)); 5520 return ret; 5521} 5522 5523 5524static int i802_set_frag(void *priv, int frag) 5525{ 5526 struct i802_bss *bss = priv; 5527 struct wpa_driver_nl80211_data *drv = bss->drv; 5528 struct nl_msg *msg; 5529 int ret; 5530 u32 val; 5531 5532 if (frag >= 2346) 5533 val = (u32) -1; 5534 else 5535 val = frag; 5536 5537 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || 5538 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) { 5539 nlmsg_free(msg); 5540 return -ENOBUFS; 5541 } 5542 5543 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5544 if (!ret) 5545 return 0; 5546 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " 5547 "%d: %d (%s)", frag, ret, strerror(-ret)); 5548 return ret; 5549} 5550 5551 5552static int i802_flush(void *priv) 5553{ 5554 struct i802_bss *bss = priv; 5555 struct nl_msg *msg; 5556 int res; 5557 5558 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", 5559 bss->ifname); 5560 5561 /* 5562 * XXX: FIX! this needs to flush all VLANs too 5563 */ 5564 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION); 5565 res = send_and_recv_msgs(bss->drv, msg, NULL, NULL); 5566 if (res) { 5567 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " 5568 "(%s)", res, strerror(-res)); 5569 } 5570 return res; 5571} 5572 5573 5574static int get_sta_handler(struct nl_msg *msg, void *arg) 5575{ 5576 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 5577 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 5578 struct hostap_sta_driver_data *data = arg; 5579 struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; 5580 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { 5581 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, 5582 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, 5583 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, 5584 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, 5585 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, 5586 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, 5587 [NL80211_STA_INFO_RX_BYTES64] = { .type = NLA_U64 }, 5588 [NL80211_STA_INFO_TX_BYTES64] = { .type = NLA_U64 }, 5589 }; 5590 5591 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 5592 genlmsg_attrlen(gnlh, 0), NULL); 5593 5594 /* 5595 * TODO: validate the interface and mac address! 5596 * Otherwise, there's a race condition as soon as 5597 * the kernel starts sending station notifications. 5598 */ 5599 5600 if (!tb[NL80211_ATTR_STA_INFO]) { 5601 wpa_printf(MSG_DEBUG, "sta stats missing!"); 5602 return NL_SKIP; 5603 } 5604 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, 5605 tb[NL80211_ATTR_STA_INFO], 5606 stats_policy)) { 5607 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); 5608 return NL_SKIP; 5609 } 5610 5611 if (stats[NL80211_STA_INFO_INACTIVE_TIME]) 5612 data->inactive_msec = 5613 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); 5614 /* For backwards compatibility, fetch the 32-bit counters first. */ 5615 if (stats[NL80211_STA_INFO_RX_BYTES]) 5616 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); 5617 if (stats[NL80211_STA_INFO_TX_BYTES]) 5618 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); 5619 if (stats[NL80211_STA_INFO_RX_BYTES64] && 5620 stats[NL80211_STA_INFO_TX_BYTES64]) { 5621 /* 5622 * The driver supports 64-bit counters, so use them to override 5623 * the 32-bit values. 5624 */ 5625 data->rx_bytes = 5626 nla_get_u64(stats[NL80211_STA_INFO_RX_BYTES64]); 5627 data->tx_bytes = 5628 nla_get_u64(stats[NL80211_STA_INFO_TX_BYTES64]); 5629 data->bytes_64bit = 1; 5630 } 5631 if (stats[NL80211_STA_INFO_RX_PACKETS]) 5632 data->rx_packets = 5633 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); 5634 if (stats[NL80211_STA_INFO_TX_PACKETS]) 5635 data->tx_packets = 5636 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); 5637 if (stats[NL80211_STA_INFO_TX_FAILED]) 5638 data->tx_retry_failed = 5639 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); 5640 5641 return NL_SKIP; 5642} 5643 5644static int i802_read_sta_data(struct i802_bss *bss, 5645 struct hostap_sta_driver_data *data, 5646 const u8 *addr) 5647{ 5648 struct nl_msg *msg; 5649 5650 os_memset(data, 0, sizeof(*data)); 5651 5652 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) || 5653 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 5654 nlmsg_free(msg); 5655 return -ENOBUFS; 5656 } 5657 5658 return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data); 5659} 5660 5661 5662static int i802_set_tx_queue_params(void *priv, int queue, int aifs, 5663 int cw_min, int cw_max, int burst_time) 5664{ 5665 struct i802_bss *bss = priv; 5666 struct wpa_driver_nl80211_data *drv = bss->drv; 5667 struct nl_msg *msg; 5668 struct nlattr *txq, *params; 5669 5670 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY); 5671 if (!msg) 5672 return -1; 5673 5674 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); 5675 if (!txq) 5676 goto fail; 5677 5678 /* We are only sending parameters for a single TXQ at a time */ 5679 params = nla_nest_start(msg, 1); 5680 if (!params) 5681 goto fail; 5682 5683 switch (queue) { 5684 case 0: 5685 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO)) 5686 goto fail; 5687 break; 5688 case 1: 5689 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI)) 5690 goto fail; 5691 break; 5692 case 2: 5693 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE)) 5694 goto fail; 5695 break; 5696 case 3: 5697 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK)) 5698 goto fail; 5699 break; 5700 } 5701 /* Burst time is configured in units of 0.1 msec and TXOP parameter in 5702 * 32 usec, so need to convert the value here. */ 5703 if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP, 5704 (burst_time * 100 + 16) / 32) || 5705 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) || 5706 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) || 5707 nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs)) 5708 goto fail; 5709 5710 nla_nest_end(msg, params); 5711 5712 nla_nest_end(msg, txq); 5713 5714 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) 5715 return 0; 5716 msg = NULL; 5717fail: 5718 nlmsg_free(msg); 5719 return -1; 5720} 5721 5722 5723static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, 5724 const char *ifname, int vlan_id) 5725{ 5726 struct wpa_driver_nl80211_data *drv = bss->drv; 5727 struct nl_msg *msg; 5728 int ret; 5729 5730 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR 5731 ", ifname=%s[%d], vlan_id=%d)", 5732 bss->ifname, if_nametoindex(bss->ifname), 5733 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); 5734 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || 5735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 5736 nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) { 5737 nlmsg_free(msg); 5738 return -ENOBUFS; 5739 } 5740 5741 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 5742 if (ret < 0) { 5743 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" 5744 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", 5745 MAC2STR(addr), ifname, vlan_id, ret, 5746 strerror(-ret)); 5747 } 5748 return ret; 5749} 5750 5751 5752static int i802_get_inact_sec(void *priv, const u8 *addr) 5753{ 5754 struct hostap_sta_driver_data data; 5755 int ret; 5756 5757 data.inactive_msec = (unsigned long) -1; 5758 ret = i802_read_sta_data(priv, &data, addr); 5759 if (ret == -ENOENT) 5760 return -ENOENT; 5761 if (ret || data.inactive_msec == (unsigned long) -1) 5762 return -1; 5763 return data.inactive_msec / 1000; 5764} 5765 5766 5767static int i802_sta_clear_stats(void *priv, const u8 *addr) 5768{ 5769#if 0 5770 /* TODO */ 5771#endif 5772 return 0; 5773} 5774 5775 5776static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, 5777 int reason) 5778{ 5779 struct i802_bss *bss = priv; 5780 struct wpa_driver_nl80211_data *drv = bss->drv; 5781 struct ieee80211_mgmt mgmt; 5782 5783 if (is_mesh_interface(drv->nlmode)) 5784 return -1; 5785 5786 if (drv->device_ap_sme) 5787 return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason); 5788 5789 memset(&mgmt, 0, sizeof(mgmt)); 5790 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 5791 WLAN_FC_STYPE_DEAUTH); 5792 memcpy(mgmt.da, addr, ETH_ALEN); 5793 memcpy(mgmt.sa, own_addr, ETH_ALEN); 5794 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 5795 mgmt.u.deauth.reason_code = host_to_le16(reason); 5796 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 5797 IEEE80211_HDRLEN + 5798 sizeof(mgmt.u.deauth), 0, 0, 0, 0, 5799 0, NULL, 0); 5800} 5801 5802 5803static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, 5804 int reason) 5805{ 5806 struct i802_bss *bss = priv; 5807 struct wpa_driver_nl80211_data *drv = bss->drv; 5808 struct ieee80211_mgmt mgmt; 5809 5810 if (is_mesh_interface(drv->nlmode)) 5811 return -1; 5812 5813 if (drv->device_ap_sme) 5814 return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason); 5815 5816 memset(&mgmt, 0, sizeof(mgmt)); 5817 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 5818 WLAN_FC_STYPE_DISASSOC); 5819 memcpy(mgmt.da, addr, ETH_ALEN); 5820 memcpy(mgmt.sa, own_addr, ETH_ALEN); 5821 memcpy(mgmt.bssid, own_addr, ETH_ALEN); 5822 mgmt.u.disassoc.reason_code = host_to_le16(reason); 5823 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, 5824 IEEE80211_HDRLEN + 5825 sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 5826 0, NULL, 0); 5827} 5828 5829 5830static void dump_ifidx(struct wpa_driver_nl80211_data *drv) 5831{ 5832 char buf[200], *pos, *end; 5833 int i, res; 5834 5835 pos = buf; 5836 end = pos + sizeof(buf); 5837 5838 for (i = 0; i < drv->num_if_indices; i++) { 5839 if (!drv->if_indices[i]) 5840 continue; 5841 res = os_snprintf(pos, end - pos, " %d(%d)", 5842 drv->if_indices[i], 5843 drv->if_indices_reason[i]); 5844 if (os_snprintf_error(end - pos, res)) 5845 break; 5846 pos += res; 5847 } 5848 *pos = '\0'; 5849 5850 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", 5851 drv->num_if_indices, buf); 5852} 5853 5854 5855static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5856 int ifidx_reason) 5857{ 5858 int i; 5859 int *old, *old_reason; 5860 5861 wpa_printf(MSG_DEBUG, 5862 "nl80211: Add own interface ifindex %d (ifidx_reason %d)", 5863 ifidx, ifidx_reason); 5864 if (have_ifidx(drv, ifidx, ifidx_reason)) { 5865 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", 5866 ifidx); 5867 return; 5868 } 5869 for (i = 0; i < drv->num_if_indices; i++) { 5870 if (drv->if_indices[i] == 0) { 5871 drv->if_indices[i] = ifidx; 5872 drv->if_indices_reason[i] = ifidx_reason; 5873 dump_ifidx(drv); 5874 return; 5875 } 5876 } 5877 5878 if (drv->if_indices != drv->default_if_indices) 5879 old = drv->if_indices; 5880 else 5881 old = NULL; 5882 5883 if (drv->if_indices_reason != drv->default_if_indices_reason) 5884 old_reason = drv->if_indices_reason; 5885 else 5886 old_reason = NULL; 5887 5888 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, 5889 sizeof(int)); 5890 drv->if_indices_reason = os_realloc_array(old_reason, 5891 drv->num_if_indices + 1, 5892 sizeof(int)); 5893 if (!drv->if_indices) { 5894 if (!old) 5895 drv->if_indices = drv->default_if_indices; 5896 else 5897 drv->if_indices = old; 5898 } 5899 if (!drv->if_indices_reason) { 5900 if (!old_reason) 5901 drv->if_indices_reason = drv->default_if_indices_reason; 5902 else 5903 drv->if_indices_reason = old_reason; 5904 } 5905 if (!drv->if_indices || !drv->if_indices_reason) { 5906 wpa_printf(MSG_ERROR, "Failed to reallocate memory for " 5907 "interfaces"); 5908 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); 5909 return; 5910 } 5911 if (!old) 5912 os_memcpy(drv->if_indices, drv->default_if_indices, 5913 sizeof(drv->default_if_indices)); 5914 if (!old_reason) 5915 os_memcpy(drv->if_indices_reason, 5916 drv->default_if_indices_reason, 5917 sizeof(drv->default_if_indices_reason)); 5918 drv->if_indices[drv->num_if_indices] = ifidx; 5919 drv->if_indices_reason[drv->num_if_indices] = ifidx_reason; 5920 drv->num_if_indices++; 5921 dump_ifidx(drv); 5922} 5923 5924 5925static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5926 int ifidx_reason) 5927{ 5928 int i; 5929 5930 for (i = 0; i < drv->num_if_indices; i++) { 5931 if ((drv->if_indices[i] == ifidx || ifidx == IFIDX_ANY) && 5932 (drv->if_indices_reason[i] == ifidx_reason || 5933 ifidx_reason == IFIDX_ANY)) { 5934 drv->if_indices[i] = 0; 5935 break; 5936 } 5937 } 5938 dump_ifidx(drv); 5939} 5940 5941 5942static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, 5943 int ifidx_reason) 5944{ 5945 int i; 5946 5947 for (i = 0; i < drv->num_if_indices; i++) 5948 if (drv->if_indices[i] == ifidx && 5949 (drv->if_indices_reason[i] == ifidx_reason || 5950 ifidx_reason == IFIDX_ANY)) 5951 return 1; 5952 5953 return 0; 5954} 5955 5956 5957static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, 5958 const char *bridge_ifname, char *ifname_wds) 5959{ 5960 struct i802_bss *bss = priv; 5961 struct wpa_driver_nl80211_data *drv = bss->drv; 5962 char name[IFNAMSIZ + 1]; 5963 5964 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); 5965 if (ifname_wds) 5966 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); 5967 5968 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR 5969 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); 5970 if (val) { 5971 if (!if_nametoindex(name)) { 5972 if (nl80211_create_iface(drv, name, 5973 NL80211_IFTYPE_AP_VLAN, 5974 bss->addr, 1, NULL, NULL, 0) < 5975 0) 5976 return -1; 5977 if (bridge_ifname && 5978 linux_br_add_if(drv->global->ioctl_sock, 5979 bridge_ifname, name) < 0) 5980 return -1; 5981 } 5982 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { 5983 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " 5984 "interface %s up", name); 5985 } 5986 return i802_set_sta_vlan(priv, addr, name, 0); 5987 } else { 5988 if (bridge_ifname) 5989 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, 5990 name); 5991 5992 i802_set_sta_vlan(priv, addr, bss->ifname, 0); 5993 nl80211_remove_iface(drv, if_nametoindex(name)); 5994 return 0; 5995 } 5996} 5997 5998 5999static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) 6000{ 6001 struct wpa_driver_nl80211_data *drv = eloop_ctx; 6002 struct sockaddr_ll lladdr; 6003 unsigned char buf[3000]; 6004 int len; 6005 socklen_t fromlen = sizeof(lladdr); 6006 6007 len = recvfrom(sock, buf, sizeof(buf), 0, 6008 (struct sockaddr *)&lladdr, &fromlen); 6009 if (len < 0) { 6010 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", 6011 strerror(errno)); 6012 return; 6013 } 6014 6015 if (have_ifidx(drv, lladdr.sll_ifindex, IFIDX_ANY)) 6016 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); 6017} 6018 6019 6020static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, 6021 struct i802_bss *bss, 6022 const char *brname, const char *ifname) 6023{ 6024 int br_ifindex; 6025 char in_br[IFNAMSIZ]; 6026 6027 os_strlcpy(bss->brname, brname, IFNAMSIZ); 6028 br_ifindex = if_nametoindex(brname); 6029 if (br_ifindex == 0) { 6030 /* 6031 * Bridge was configured, but the bridge device does 6032 * not exist. Try to add it now. 6033 */ 6034 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { 6035 wpa_printf(MSG_ERROR, "nl80211: Failed to add the " 6036 "bridge interface %s: %s", 6037 brname, strerror(errno)); 6038 return -1; 6039 } 6040 bss->added_bridge = 1; 6041 br_ifindex = if_nametoindex(brname); 6042 add_ifidx(drv, br_ifindex, drv->ifindex); 6043 } 6044 bss->br_ifindex = br_ifindex; 6045 6046 if (linux_br_get(in_br, ifname) == 0) { 6047 if (os_strcmp(in_br, brname) == 0) 6048 return 0; /* already in the bridge */ 6049 6050 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " 6051 "bridge %s", ifname, in_br); 6052 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 6053 0) { 6054 wpa_printf(MSG_ERROR, "nl80211: Failed to " 6055 "remove interface %s from bridge " 6056 "%s: %s", 6057 ifname, brname, strerror(errno)); 6058 return -1; 6059 } 6060 } 6061 6062 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", 6063 ifname, brname); 6064 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { 6065 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " 6066 "into bridge %s: %s", 6067 ifname, brname, strerror(errno)); 6068 return -1; 6069 } 6070 bss->added_if_into_bridge = 1; 6071 6072 return 0; 6073} 6074 6075 6076static void *i802_init(struct hostapd_data *hapd, 6077 struct wpa_init_params *params) 6078{ 6079 struct wpa_driver_nl80211_data *drv; 6080 struct i802_bss *bss; 6081 size_t i; 6082 char master_ifname[IFNAMSIZ]; 6083 int ifindex, br_ifindex = 0; 6084 int br_added = 0; 6085 6086 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, 6087 params->global_priv, 1, 6088 params->bssid, params->driver_params); 6089 if (bss == NULL) 6090 return NULL; 6091 6092 drv = bss->drv; 6093 6094 if (linux_br_get(master_ifname, params->ifname) == 0) { 6095 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", 6096 params->ifname, master_ifname); 6097 br_ifindex = if_nametoindex(master_ifname); 6098 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); 6099 } else if ((params->num_bridge == 0 || !params->bridge[0]) && 6100 linux_master_get(master_ifname, params->ifname) == 0) { 6101 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s", 6102 params->ifname, master_ifname); 6103 /* start listening for EAPOL on the master interface */ 6104 add_ifidx(drv, if_nametoindex(master_ifname), drv->ifindex); 6105 6106 /* check if master itself is under bridge */ 6107 if (linux_br_get(master_ifname, master_ifname) == 0) { 6108 wpa_printf(MSG_DEBUG, "nl80211: which is in bridge %s", 6109 master_ifname); 6110 br_ifindex = if_nametoindex(master_ifname); 6111 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); 6112 } 6113 } else { 6114 master_ifname[0] = '\0'; 6115 } 6116 6117 bss->br_ifindex = br_ifindex; 6118 6119 for (i = 0; i < params->num_bridge; i++) { 6120 if (params->bridge[i]) { 6121 ifindex = if_nametoindex(params->bridge[i]); 6122 if (ifindex) 6123 add_ifidx(drv, ifindex, drv->ifindex); 6124 if (ifindex == br_ifindex) 6125 br_added = 1; 6126 } 6127 } 6128 6129 /* start listening for EAPOL on the default AP interface */ 6130 add_ifidx(drv, drv->ifindex, IFIDX_ANY); 6131 6132 if (params->num_bridge && params->bridge[0]) { 6133 if (i802_check_bridge(drv, bss, params->bridge[0], 6134 params->ifname) < 0) 6135 goto failed; 6136 if (os_strcmp(params->bridge[0], master_ifname) != 0) 6137 br_added = 1; 6138 } 6139 6140 if (!br_added && br_ifindex && 6141 (params->num_bridge == 0 || !params->bridge[0])) 6142 add_ifidx(drv, br_ifindex, drv->ifindex); 6143 6144#ifdef CONFIG_LIBNL3_ROUTE 6145 if (bss->added_if_into_bridge) { 6146 drv->rtnl_sk = nl_socket_alloc(); 6147 if (drv->rtnl_sk == NULL) { 6148 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock"); 6149 goto failed; 6150 } 6151 6152 if (nl_connect(drv->rtnl_sk, NETLINK_ROUTE)) { 6153 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s", 6154 strerror(errno)); 6155 goto failed; 6156 } 6157 } 6158#endif /* CONFIG_LIBNL3_ROUTE */ 6159 6160 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); 6161 if (drv->eapol_sock < 0) { 6162 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", 6163 strerror(errno)); 6164 goto failed; 6165 } 6166 6167 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) 6168 { 6169 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); 6170 goto failed; 6171 } 6172 6173 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, 6174 params->own_addr)) 6175 goto failed; 6176 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN); 6177 6178 memcpy(bss->addr, params->own_addr, ETH_ALEN); 6179 6180 return bss; 6181 6182failed: 6183 wpa_driver_nl80211_deinit(bss); 6184 return NULL; 6185} 6186 6187 6188static void i802_deinit(void *priv) 6189{ 6190 struct i802_bss *bss = priv; 6191 wpa_driver_nl80211_deinit(bss); 6192} 6193 6194 6195static enum nl80211_iftype wpa_driver_nl80211_if_type( 6196 enum wpa_driver_if_type type) 6197{ 6198 switch (type) { 6199 case WPA_IF_STATION: 6200 return NL80211_IFTYPE_STATION; 6201 case WPA_IF_P2P_CLIENT: 6202 case WPA_IF_P2P_GROUP: 6203 return NL80211_IFTYPE_P2P_CLIENT; 6204 case WPA_IF_AP_VLAN: 6205 return NL80211_IFTYPE_AP_VLAN; 6206 case WPA_IF_AP_BSS: 6207 return NL80211_IFTYPE_AP; 6208 case WPA_IF_P2P_GO: 6209 return NL80211_IFTYPE_P2P_GO; 6210 case WPA_IF_P2P_DEVICE: 6211 return NL80211_IFTYPE_P2P_DEVICE; 6212 case WPA_IF_MESH: 6213 return NL80211_IFTYPE_MESH_POINT; 6214 default: 6215 return -1; 6216 } 6217} 6218 6219 6220static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) 6221{ 6222 struct wpa_driver_nl80211_data *drv; 6223 dl_list_for_each(drv, &global->interfaces, 6224 struct wpa_driver_nl80211_data, list) { 6225 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) 6226 return 1; 6227 } 6228 return 0; 6229} 6230 6231 6232static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr) 6233{ 6234 unsigned int idx; 6235 6236 if (!drv->global) 6237 return -1; 6238 6239 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); 6240 for (idx = 0; idx < 64; idx++) { 6241 new_addr[0] = drv->first_bss->addr[0] | 0x02; 6242 new_addr[0] ^= idx << 2; 6243 if (!nl80211_addr_in_use(drv->global, new_addr)) 6244 break; 6245 } 6246 if (idx == 64) 6247 return -1; 6248 6249 wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address " 6250 MACSTR, MAC2STR(new_addr)); 6251 6252 return 0; 6253} 6254 6255 6256struct wdev_info { 6257 u64 wdev_id; 6258 int wdev_id_set; 6259 u8 macaddr[ETH_ALEN]; 6260}; 6261 6262static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) 6263{ 6264 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6265 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6266 struct wdev_info *wi = arg; 6267 6268 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6269 genlmsg_attrlen(gnlh, 0), NULL); 6270 if (tb[NL80211_ATTR_WDEV]) { 6271 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); 6272 wi->wdev_id_set = 1; 6273 } 6274 6275 if (tb[NL80211_ATTR_MAC]) 6276 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), 6277 ETH_ALEN); 6278 6279 return NL_SKIP; 6280} 6281 6282 6283static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, 6284 const char *ifname, const u8 *addr, 6285 void *bss_ctx, void **drv_priv, 6286 char *force_ifname, u8 *if_addr, 6287 const char *bridge, int use_existing, 6288 int setup_ap) 6289{ 6290 enum nl80211_iftype nlmode; 6291 struct i802_bss *bss = priv; 6292 struct wpa_driver_nl80211_data *drv = bss->drv; 6293 int ifidx; 6294 int added = 1; 6295 6296 if (addr) 6297 os_memcpy(if_addr, addr, ETH_ALEN); 6298 nlmode = wpa_driver_nl80211_if_type(type); 6299 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { 6300 struct wdev_info p2pdev_info; 6301 6302 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); 6303 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 6304 0, nl80211_wdev_handler, 6305 &p2pdev_info, use_existing); 6306 if (!p2pdev_info.wdev_id_set || ifidx != 0) { 6307 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", 6308 ifname); 6309 return -1; 6310 } 6311 6312 drv->global->if_add_wdevid = p2pdev_info.wdev_id; 6313 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; 6314 if (!is_zero_ether_addr(p2pdev_info.macaddr)) 6315 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); 6316 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", 6317 ifname, 6318 (long long unsigned int) p2pdev_info.wdev_id); 6319 } else { 6320 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 6321 0, NULL, NULL, use_existing); 6322 if (use_existing && ifidx == -ENFILE) { 6323 added = 0; 6324 ifidx = if_nametoindex(ifname); 6325 } else if (ifidx < 0) { 6326 return -1; 6327 } 6328 } 6329 6330 if (!addr) { 6331 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) 6332 os_memcpy(if_addr, bss->addr, ETH_ALEN); 6333 else if (linux_get_ifhwaddr(drv->global->ioctl_sock, 6334 ifname, if_addr) < 0) { 6335 if (added) 6336 nl80211_remove_iface(drv, ifidx); 6337 return -1; 6338 } 6339 } 6340 6341 if (!addr && 6342 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || 6343 type == WPA_IF_P2P_GO || type == WPA_IF_MESH || 6344 type == WPA_IF_STATION)) { 6345 /* Enforce unique address */ 6346 u8 new_addr[ETH_ALEN]; 6347 6348 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, 6349 new_addr) < 0) { 6350 if (added) 6351 nl80211_remove_iface(drv, ifidx); 6352 return -1; 6353 } 6354 if (nl80211_addr_in_use(drv->global, new_addr)) { 6355 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " 6356 "for interface %s type %d", ifname, type); 6357 if (nl80211_vif_addr(drv, new_addr) < 0) { 6358 if (added) 6359 nl80211_remove_iface(drv, ifidx); 6360 return -1; 6361 } 6362 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, 6363 new_addr) < 0) { 6364 if (added) 6365 nl80211_remove_iface(drv, ifidx); 6366 return -1; 6367 } 6368 } 6369 os_memcpy(if_addr, new_addr, ETH_ALEN); 6370 } 6371 6372 if (type == WPA_IF_AP_BSS && setup_ap) { 6373 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); 6374 if (new_bss == NULL) { 6375 if (added) 6376 nl80211_remove_iface(drv, ifidx); 6377 return -1; 6378 } 6379 6380 if (bridge && 6381 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { 6382 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " 6383 "interface %s to a bridge %s", 6384 ifname, bridge); 6385 if (added) 6386 nl80211_remove_iface(drv, ifidx); 6387 os_free(new_bss); 6388 return -1; 6389 } 6390 6391 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) 6392 { 6393 if (added) 6394 nl80211_remove_iface(drv, ifidx); 6395 os_free(new_bss); 6396 return -1; 6397 } 6398 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); 6399 os_memcpy(new_bss->addr, if_addr, ETH_ALEN); 6400 new_bss->ifindex = ifidx; 6401 new_bss->drv = drv; 6402 new_bss->next = drv->first_bss->next; 6403 new_bss->freq = drv->first_bss->freq; 6404 new_bss->ctx = bss_ctx; 6405 new_bss->added_if = added; 6406 drv->first_bss->next = new_bss; 6407 if (drv_priv) 6408 *drv_priv = new_bss; 6409 nl80211_init_bss(new_bss); 6410 6411 /* Subscribe management frames for this WPA_IF_AP_BSS */ 6412 if (nl80211_setup_ap(new_bss)) 6413 return -1; 6414 } 6415 6416 if (drv->global) 6417 drv->global->if_add_ifindex = ifidx; 6418 6419 /* 6420 * Some virtual interfaces need to process EAPOL packets and events on 6421 * the parent interface. This is used mainly with hostapd. 6422 */ 6423 if (ifidx > 0 && 6424 (drv->hostapd || 6425 nlmode == NL80211_IFTYPE_AP_VLAN || 6426 nlmode == NL80211_IFTYPE_WDS || 6427 nlmode == NL80211_IFTYPE_MONITOR)) 6428 add_ifidx(drv, ifidx, IFIDX_ANY); 6429 6430 return 0; 6431} 6432 6433 6434static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, 6435 enum wpa_driver_if_type type, 6436 const char *ifname) 6437{ 6438 struct wpa_driver_nl80211_data *drv = bss->drv; 6439 int ifindex = if_nametoindex(ifname); 6440 6441 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", 6442 __func__, type, ifname, ifindex, bss->added_if); 6443 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) 6444 nl80211_remove_iface(drv, ifindex); 6445 else if (ifindex > 0 && !bss->added_if) { 6446 struct wpa_driver_nl80211_data *drv2; 6447 dl_list_for_each(drv2, &drv->global->interfaces, 6448 struct wpa_driver_nl80211_data, list) { 6449 del_ifidx(drv2, ifindex, IFIDX_ANY); 6450 del_ifidx(drv2, IFIDX_ANY, ifindex); 6451 } 6452 } 6453 6454 if (type != WPA_IF_AP_BSS) 6455 return 0; 6456 6457 if (bss->added_if_into_bridge) { 6458 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, 6459 bss->ifname) < 0) 6460 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 6461 "interface %s from bridge %s: %s", 6462 bss->ifname, bss->brname, strerror(errno)); 6463 } 6464 if (bss->added_bridge) { 6465 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) 6466 wpa_printf(MSG_INFO, "nl80211: Failed to remove " 6467 "bridge %s: %s", 6468 bss->brname, strerror(errno)); 6469 } 6470 6471 if (bss != drv->first_bss) { 6472 struct i802_bss *tbss; 6473 6474 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); 6475 for (tbss = drv->first_bss; tbss; tbss = tbss->next) { 6476 if (tbss->next == bss) { 6477 tbss->next = bss->next; 6478 /* Unsubscribe management frames */ 6479 nl80211_teardown_ap(bss); 6480 nl80211_destroy_bss(bss); 6481 if (!bss->added_if) 6482 i802_set_iface_flags(bss, 0); 6483 os_free(bss); 6484 bss = NULL; 6485 break; 6486 } 6487 } 6488 if (bss) 6489 wpa_printf(MSG_INFO, "nl80211: %s - could not find " 6490 "BSS %p in the list", __func__, bss); 6491 } else { 6492 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); 6493 nl80211_teardown_ap(bss); 6494 if (!bss->added_if && !drv->first_bss->next) 6495 wpa_driver_nl80211_del_beacon(drv); 6496 nl80211_destroy_bss(bss); 6497 if (!bss->added_if) 6498 i802_set_iface_flags(bss, 0); 6499 if (drv->first_bss->next) { 6500 drv->first_bss = drv->first_bss->next; 6501 drv->ctx = drv->first_bss->ctx; 6502 os_free(bss); 6503 } else { 6504 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); 6505 } 6506 } 6507 6508 return 0; 6509} 6510 6511 6512static int cookie_handler(struct nl_msg *msg, void *arg) 6513{ 6514 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6515 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6516 u64 *cookie = arg; 6517 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6518 genlmsg_attrlen(gnlh, 0), NULL); 6519 if (tb[NL80211_ATTR_COOKIE]) 6520 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); 6521 return NL_SKIP; 6522} 6523 6524 6525static int nl80211_send_frame_cmd(struct i802_bss *bss, 6526 unsigned int freq, unsigned int wait, 6527 const u8 *buf, size_t buf_len, 6528 u64 *cookie_out, int no_cck, int no_ack, 6529 int offchanok, const u16 *csa_offs, 6530 size_t csa_offs_len) 6531{ 6532 struct wpa_driver_nl80211_data *drv = bss->drv; 6533 struct nl_msg *msg; 6534 u64 cookie; 6535 int ret = -1; 6536 6537 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " 6538 "no_ack=%d offchanok=%d", 6539 freq, wait, no_cck, no_ack, offchanok); 6540 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); 6541 6542 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) || 6543 (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || 6544 (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) || 6545 (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 6546 drv->test_use_roc_tx) && 6547 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) || 6548 (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) || 6549 (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) || 6550 (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX, 6551 csa_offs_len * sizeof(u16), csa_offs)) || 6552 nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf)) 6553 goto fail; 6554 6555 cookie = 0; 6556 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 6557 msg = NULL; 6558 if (ret) { 6559 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " 6560 "(%s) (freq=%u wait=%u)", ret, strerror(-ret), 6561 freq, wait); 6562 } else { 6563 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " 6564 "cookie 0x%llx", no_ack ? " (no ACK)" : "", 6565 (long long unsigned int) cookie); 6566 6567 if (cookie_out) 6568 *cookie_out = no_ack ? (u64) -1 : cookie; 6569 6570 if (drv->num_send_action_cookies == MAX_SEND_ACTION_COOKIES) { 6571 wpa_printf(MSG_DEBUG, 6572 "nl80211: Drop oldest pending send action cookie 0x%llx", 6573 (long long unsigned int) 6574 drv->send_action_cookies[0]); 6575 os_memmove(&drv->send_action_cookies[0], 6576 &drv->send_action_cookies[1], 6577 (MAX_SEND_ACTION_COOKIES - 1) * 6578 sizeof(u64)); 6579 drv->num_send_action_cookies--; 6580 } 6581 drv->send_action_cookies[drv->num_send_action_cookies] = cookie; 6582 drv->num_send_action_cookies++; 6583 } 6584 6585fail: 6586 nlmsg_free(msg); 6587 return ret; 6588} 6589 6590 6591static int wpa_driver_nl80211_send_action(struct i802_bss *bss, 6592 unsigned int freq, 6593 unsigned int wait_time, 6594 const u8 *dst, const u8 *src, 6595 const u8 *bssid, 6596 const u8 *data, size_t data_len, 6597 int no_cck) 6598{ 6599 struct wpa_driver_nl80211_data *drv = bss->drv; 6600 int ret = -1; 6601 u8 *buf; 6602 struct ieee80211_hdr *hdr; 6603 6604 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " 6605 "freq=%u MHz wait=%d ms no_cck=%d)", 6606 drv->ifindex, freq, wait_time, no_cck); 6607 6608 buf = os_zalloc(24 + data_len); 6609 if (buf == NULL) 6610 return ret; 6611 os_memcpy(buf + 24, data, data_len); 6612 hdr = (struct ieee80211_hdr *) buf; 6613 hdr->frame_control = 6614 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); 6615 os_memcpy(hdr->addr1, dst, ETH_ALEN); 6616 os_memcpy(hdr->addr2, src, ETH_ALEN); 6617 os_memcpy(hdr->addr3, bssid, ETH_ALEN); 6618 6619 if (is_ap_interface(drv->nlmode) && 6620 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || 6621 (int) freq == bss->freq || drv->device_ap_sme || 6622 !drv->use_monitor)) 6623 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 6624 0, freq, no_cck, 1, 6625 wait_time, NULL, 0); 6626 else 6627 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 6628 24 + data_len, 6629 &drv->send_action_cookie, 6630 no_cck, 0, 1, NULL, 0); 6631 6632 os_free(buf); 6633 return ret; 6634} 6635 6636 6637static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie) 6638{ 6639 struct wpa_driver_nl80211_data *drv = bss->drv; 6640 struct nl_msg *msg; 6641 int ret; 6642 6643 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", 6644 (long long unsigned int) cookie); 6645 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) || 6646 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) { 6647 nlmsg_free(msg); 6648 return; 6649 } 6650 6651 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6652 if (ret) 6653 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " 6654 "(%s)", ret, strerror(-ret)); 6655} 6656 6657 6658static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) 6659{ 6660 struct i802_bss *bss = priv; 6661 struct wpa_driver_nl80211_data *drv = bss->drv; 6662 unsigned int i; 6663 u64 cookie; 6664 6665 /* Cancel the last pending TX cookie */ 6666 nl80211_frame_wait_cancel(bss, drv->send_action_cookie); 6667 6668 /* 6669 * Cancel the other pending TX cookies, if any. This is needed since 6670 * the driver may keep a list of all pending offchannel TX operations 6671 * and free up the radio only once they have expired or cancelled. 6672 */ 6673 for (i = drv->num_send_action_cookies; i > 0; i--) { 6674 cookie = drv->send_action_cookies[i - 1]; 6675 if (cookie != drv->send_action_cookie) 6676 nl80211_frame_wait_cancel(bss, cookie); 6677 } 6678 drv->num_send_action_cookies = 0; 6679} 6680 6681 6682static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, 6683 unsigned int duration) 6684{ 6685 struct i802_bss *bss = priv; 6686 struct wpa_driver_nl80211_data *drv = bss->drv; 6687 struct nl_msg *msg; 6688 int ret; 6689 u64 cookie; 6690 6691 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) || 6692 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || 6693 nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) { 6694 nlmsg_free(msg); 6695 return -1; 6696 } 6697 6698 cookie = 0; 6699 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); 6700 if (ret == 0) { 6701 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " 6702 "0x%llx for freq=%u MHz duration=%u", 6703 (long long unsigned int) cookie, freq, duration); 6704 drv->remain_on_chan_cookie = cookie; 6705 drv->pending_remain_on_chan = 1; 6706 return 0; 6707 } 6708 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " 6709 "(freq=%d duration=%u): %d (%s)", 6710 freq, duration, ret, strerror(-ret)); 6711 return -1; 6712} 6713 6714 6715static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) 6716{ 6717 struct i802_bss *bss = priv; 6718 struct wpa_driver_nl80211_data *drv = bss->drv; 6719 struct nl_msg *msg; 6720 int ret; 6721 6722 if (!drv->pending_remain_on_chan) { 6723 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " 6724 "to cancel"); 6725 return -1; 6726 } 6727 6728 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " 6729 "0x%llx", 6730 (long long unsigned int) drv->remain_on_chan_cookie); 6731 6732 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); 6733 if (!msg || 6734 nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) { 6735 nlmsg_free(msg); 6736 return -1; 6737 } 6738 6739 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6740 if (ret == 0) 6741 return 0; 6742 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " 6743 "%d (%s)", ret, strerror(-ret)); 6744 return -1; 6745} 6746 6747 6748static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) 6749{ 6750 struct wpa_driver_nl80211_data *drv = bss->drv; 6751 6752 if (!report) { 6753 if (bss->nl_preq && drv->device_ap_sme && 6754 is_ap_interface(drv->nlmode) && !bss->in_deinit && 6755 !bss->static_ap) { 6756 /* 6757 * Do not disable Probe Request reporting that was 6758 * enabled in nl80211_setup_ap(). 6759 */ 6760 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " 6761 "Probe Request reporting nl_preq=%p while " 6762 "in AP mode", bss->nl_preq); 6763 } else if (bss->nl_preq) { 6764 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " 6765 "reporting nl_preq=%p", bss->nl_preq); 6766 nl80211_destroy_eloop_handle(&bss->nl_preq); 6767 } 6768 return 0; 6769 } 6770 6771 if (bss->nl_preq) { 6772 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " 6773 "already on! nl_preq=%p", bss->nl_preq); 6774 return 0; 6775 } 6776 6777 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); 6778 if (bss->nl_preq == NULL) 6779 return -1; 6780 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " 6781 "reporting nl_preq=%p", bss->nl_preq); 6782 6783 if (nl80211_register_frame(bss, bss->nl_preq, 6784 (WLAN_FC_TYPE_MGMT << 2) | 6785 (WLAN_FC_STYPE_PROBE_REQ << 4), 6786 NULL, 0) < 0) 6787 goto out_err; 6788 6789 nl80211_register_eloop_read(&bss->nl_preq, 6790 wpa_driver_nl80211_event_receive, 6791 bss->nl_cb); 6792 6793 return 0; 6794 6795 out_err: 6796 nl_destroy_handles(&bss->nl_preq); 6797 return -1; 6798} 6799 6800 6801static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, 6802 int ifindex, int disabled) 6803{ 6804 struct nl_msg *msg; 6805 struct nlattr *bands, *band; 6806 int ret; 6807 6808 wpa_printf(MSG_DEBUG, 6809 "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)", 6810 ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" : 6811 "no NL80211_TXRATE_LEGACY constraint"); 6812 6813 msg = nl80211_ifindex_msg(drv, ifindex, 0, 6814 NL80211_CMD_SET_TX_BITRATE_MASK); 6815 if (!msg) 6816 return -1; 6817 6818 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); 6819 if (!bands) 6820 goto fail; 6821 6822 /* 6823 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything 6824 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS 6825 * rates. All 5 GHz rates are left enabled. 6826 */ 6827 band = nla_nest_start(msg, NL80211_BAND_2GHZ); 6828 if (!band || 6829 (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8, 6830 "\x0c\x12\x18\x24\x30\x48\x60\x6c"))) 6831 goto fail; 6832 nla_nest_end(msg, band); 6833 6834 nla_nest_end(msg, bands); 6835 6836 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 6837 if (ret) { 6838 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " 6839 "(%s)", ret, strerror(-ret)); 6840 } else 6841 drv->disabled_11b_rates = disabled; 6842 6843 return ret; 6844 6845fail: 6846 nlmsg_free(msg); 6847 return -1; 6848} 6849 6850 6851static int wpa_driver_nl80211_deinit_ap(void *priv) 6852{ 6853 struct i802_bss *bss = priv; 6854 struct wpa_driver_nl80211_data *drv = bss->drv; 6855 if (!is_ap_interface(drv->nlmode)) 6856 return -1; 6857 wpa_driver_nl80211_del_beacon(drv); 6858 bss->beacon_set = 0; 6859 6860 /* 6861 * If the P2P GO interface was dynamically added, then it is 6862 * possible that the interface change to station is not possible. 6863 */ 6864 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) 6865 return 0; 6866 6867 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 6868} 6869 6870 6871static int wpa_driver_nl80211_stop_ap(void *priv) 6872{ 6873 struct i802_bss *bss = priv; 6874 struct wpa_driver_nl80211_data *drv = bss->drv; 6875 if (!is_ap_interface(drv->nlmode)) 6876 return -1; 6877 wpa_driver_nl80211_del_beacon(drv); 6878 bss->beacon_set = 0; 6879 return 0; 6880} 6881 6882 6883static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) 6884{ 6885 struct i802_bss *bss = priv; 6886 struct wpa_driver_nl80211_data *drv = bss->drv; 6887 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) 6888 return -1; 6889 6890 /* 6891 * If the P2P Client interface was dynamically added, then it is 6892 * possible that the interface change to station is not possible. 6893 */ 6894 if (bss->if_dynamic) 6895 return 0; 6896 6897 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); 6898} 6899 6900 6901static void wpa_driver_nl80211_resume(void *priv) 6902{ 6903 struct i802_bss *bss = priv; 6904 enum nl80211_iftype nlmode = nl80211_get_ifmode(bss); 6905 6906 if (i802_set_iface_flags(bss, 1)) 6907 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); 6908 6909 if (is_p2p_net_interface(nlmode)) 6910 nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1); 6911} 6912 6913 6914static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) 6915{ 6916 struct i802_bss *bss = priv; 6917 struct wpa_driver_nl80211_data *drv = bss->drv; 6918 struct nl_msg *msg; 6919 struct nlattr *cqm; 6920 6921 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " 6922 "hysteresis=%d", threshold, hysteresis); 6923 6924 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) || 6925 !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) || 6926 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) || 6927 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) { 6928 nlmsg_free(msg); 6929 return -1; 6930 } 6931 nla_nest_end(msg, cqm); 6932 6933 return send_and_recv_msgs(drv, msg, NULL, NULL); 6934} 6935 6936 6937static int get_channel_width(struct nl_msg *msg, void *arg) 6938{ 6939 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 6940 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 6941 struct wpa_signal_info *sig_change = arg; 6942 6943 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 6944 genlmsg_attrlen(gnlh, 0), NULL); 6945 6946 sig_change->center_frq1 = -1; 6947 sig_change->center_frq2 = -1; 6948 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; 6949 6950 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { 6951 sig_change->chanwidth = convert2width( 6952 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); 6953 if (tb[NL80211_ATTR_CENTER_FREQ1]) 6954 sig_change->center_frq1 = 6955 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); 6956 if (tb[NL80211_ATTR_CENTER_FREQ2]) 6957 sig_change->center_frq2 = 6958 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); 6959 } 6960 6961 return NL_SKIP; 6962} 6963 6964 6965static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, 6966 struct wpa_signal_info *sig) 6967{ 6968 struct nl_msg *msg; 6969 6970 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE); 6971 return send_and_recv_msgs(drv, msg, get_channel_width, sig); 6972} 6973 6974 6975static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) 6976{ 6977 struct i802_bss *bss = priv; 6978 struct wpa_driver_nl80211_data *drv = bss->drv; 6979 int res; 6980 6981 os_memset(si, 0, sizeof(*si)); 6982 res = nl80211_get_link_signal(drv, si); 6983 if (res) { 6984 if (drv->nlmode != NL80211_IFTYPE_ADHOC && 6985 drv->nlmode != NL80211_IFTYPE_MESH_POINT) 6986 return res; 6987 si->current_signal = 0; 6988 } 6989 6990 res = nl80211_get_channel_width(drv, si); 6991 if (res != 0) 6992 return res; 6993 6994 return nl80211_get_link_noise(drv, si); 6995} 6996 6997 6998static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, 6999 int encrypt) 7000{ 7001 struct i802_bss *bss = priv; 7002 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, 7003 0, 0, 0, 0, NULL, 0); 7004} 7005 7006 7007static int nl80211_set_param(void *priv, const char *param) 7008{ 7009 struct i802_bss *bss = priv; 7010 struct wpa_driver_nl80211_data *drv = bss->drv; 7011 7012 if (param == NULL) 7013 return 0; 7014 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); 7015 7016#ifdef CONFIG_P2P 7017 if (os_strstr(param, "use_p2p_group_interface=1")) { 7018 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " 7019 "interface"); 7020 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; 7021 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; 7022 } 7023#endif /* CONFIG_P2P */ 7024 7025 if (os_strstr(param, "use_monitor=1")) 7026 drv->use_monitor = 1; 7027 7028 if (os_strstr(param, "force_connect_cmd=1")) { 7029 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; 7030 drv->force_connect_cmd = 1; 7031 } 7032 7033 if (os_strstr(param, "force_bss_selection=1")) 7034 drv->capa.flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; 7035 7036 if (os_strstr(param, "no_offchannel_tx=1")) { 7037 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; 7038 drv->test_use_roc_tx = 1; 7039 } 7040 7041 return 0; 7042} 7043 7044 7045static void * nl80211_global_init(void *ctx) 7046{ 7047 struct nl80211_global *global; 7048 struct netlink_config *cfg; 7049 7050 global = os_zalloc(sizeof(*global)); 7051 if (global == NULL) 7052 return NULL; 7053 global->ctx = ctx; 7054 global->ioctl_sock = -1; 7055 dl_list_init(&global->interfaces); 7056 global->if_add_ifindex = -1; 7057 7058 cfg = os_zalloc(sizeof(*cfg)); 7059 if (cfg == NULL) 7060 goto err; 7061 7062 cfg->ctx = global; 7063 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; 7064 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; 7065 global->netlink = netlink_init(cfg); 7066 if (global->netlink == NULL) { 7067 os_free(cfg); 7068 goto err; 7069 } 7070 7071 if (wpa_driver_nl80211_init_nl_global(global) < 0) 7072 goto err; 7073 7074 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); 7075 if (global->ioctl_sock < 0) { 7076 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", 7077 strerror(errno)); 7078 goto err; 7079 } 7080 7081 return global; 7082 7083err: 7084 nl80211_global_deinit(global); 7085 return NULL; 7086} 7087 7088 7089static void nl80211_global_deinit(void *priv) 7090{ 7091 struct nl80211_global *global = priv; 7092 if (global == NULL) 7093 return; 7094 if (!dl_list_empty(&global->interfaces)) { 7095 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " 7096 "nl80211_global_deinit", 7097 dl_list_len(&global->interfaces)); 7098 } 7099 7100 if (global->netlink) 7101 netlink_deinit(global->netlink); 7102 7103 nl_destroy_handles(&global->nl); 7104 7105 if (global->nl_event) 7106 nl80211_destroy_eloop_handle(&global->nl_event); 7107 7108 nl_cb_put(global->nl_cb); 7109 7110 if (global->ioctl_sock >= 0) 7111 close(global->ioctl_sock); 7112 7113 os_free(global); 7114} 7115 7116 7117static const char * nl80211_get_radio_name(void *priv) 7118{ 7119 struct i802_bss *bss = priv; 7120 struct wpa_driver_nl80211_data *drv = bss->drv; 7121 return drv->phyname; 7122} 7123 7124 7125static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, 7126 const u8 *pmkid) 7127{ 7128 struct nl_msg *msg; 7129 7130 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || 7131 (pmkid && nla_put(msg, NL80211_ATTR_PMKID, 16, pmkid)) || 7132 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))) { 7133 nlmsg_free(msg); 7134 return -ENOBUFS; 7135 } 7136 7137 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 7138} 7139 7140 7141static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 7142{ 7143 struct i802_bss *bss = priv; 7144 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); 7145 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); 7146} 7147 7148 7149static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) 7150{ 7151 struct i802_bss *bss = priv; 7152 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, 7153 MAC2STR(bssid)); 7154 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); 7155} 7156 7157 7158static int nl80211_flush_pmkid(void *priv) 7159{ 7160 struct i802_bss *bss = priv; 7161 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); 7162 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); 7163} 7164 7165 7166static void clean_survey_results(struct survey_results *survey_results) 7167{ 7168 struct freq_survey *survey, *tmp; 7169 7170 if (dl_list_empty(&survey_results->survey_list)) 7171 return; 7172 7173 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, 7174 struct freq_survey, list) { 7175 dl_list_del(&survey->list); 7176 os_free(survey); 7177 } 7178} 7179 7180 7181static void add_survey(struct nlattr **sinfo, u32 ifidx, 7182 struct dl_list *survey_list) 7183{ 7184 struct freq_survey *survey; 7185 7186 survey = os_zalloc(sizeof(struct freq_survey)); 7187 if (!survey) 7188 return; 7189 7190 survey->ifidx = ifidx; 7191 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 7192 survey->filled = 0; 7193 7194 if (sinfo[NL80211_SURVEY_INFO_NOISE]) { 7195 survey->nf = (int8_t) 7196 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); 7197 survey->filled |= SURVEY_HAS_NF; 7198 } 7199 7200 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { 7201 survey->channel_time = 7202 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); 7203 survey->filled |= SURVEY_HAS_CHAN_TIME; 7204 } 7205 7206 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { 7207 survey->channel_time_busy = 7208 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); 7209 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; 7210 } 7211 7212 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { 7213 survey->channel_time_rx = 7214 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); 7215 survey->filled |= SURVEY_HAS_CHAN_TIME_RX; 7216 } 7217 7218 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { 7219 survey->channel_time_tx = 7220 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); 7221 survey->filled |= SURVEY_HAS_CHAN_TIME_TX; 7222 } 7223 7224 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)", 7225 survey->freq, 7226 survey->nf, 7227 (unsigned long int) survey->channel_time, 7228 (unsigned long int) survey->channel_time_busy, 7229 (unsigned long int) survey->channel_time_tx, 7230 (unsigned long int) survey->channel_time_rx, 7231 survey->filled); 7232 7233 dl_list_add_tail(survey_list, &survey->list); 7234} 7235 7236 7237static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, 7238 unsigned int freq_filter) 7239{ 7240 if (!freq_filter) 7241 return 1; 7242 7243 return freq_filter == surveyed_freq; 7244} 7245 7246 7247static int survey_handler(struct nl_msg *msg, void *arg) 7248{ 7249 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 7250 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 7251 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; 7252 struct survey_results *survey_results; 7253 u32 surveyed_freq = 0; 7254 u32 ifidx; 7255 7256 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { 7257 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, 7258 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, 7259 }; 7260 7261 survey_results = (struct survey_results *) arg; 7262 7263 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 7264 genlmsg_attrlen(gnlh, 0), NULL); 7265 7266 if (!tb[NL80211_ATTR_IFINDEX]) 7267 return NL_SKIP; 7268 7269 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); 7270 7271 if (!tb[NL80211_ATTR_SURVEY_INFO]) 7272 return NL_SKIP; 7273 7274 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, 7275 tb[NL80211_ATTR_SURVEY_INFO], 7276 survey_policy)) 7277 return NL_SKIP; 7278 7279 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { 7280 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); 7281 return NL_SKIP; 7282 } 7283 7284 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); 7285 7286 if (!check_survey_ok(sinfo, surveyed_freq, 7287 survey_results->freq_filter)) 7288 return NL_SKIP; 7289 7290 if (survey_results->freq_filter && 7291 survey_results->freq_filter != surveyed_freq) { 7292 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", 7293 surveyed_freq); 7294 return NL_SKIP; 7295 } 7296 7297 add_survey(sinfo, ifidx, &survey_results->survey_list); 7298 7299 return NL_SKIP; 7300} 7301 7302 7303static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) 7304{ 7305 struct i802_bss *bss = priv; 7306 struct wpa_driver_nl80211_data *drv = bss->drv; 7307 struct nl_msg *msg; 7308 int err; 7309 union wpa_event_data data; 7310 struct survey_results *survey_results; 7311 7312 os_memset(&data, 0, sizeof(data)); 7313 survey_results = &data.survey_results; 7314 7315 dl_list_init(&survey_results->survey_list); 7316 7317 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); 7318 if (!msg) 7319 return -ENOBUFS; 7320 7321 if (freq) 7322 data.survey_results.freq_filter = freq; 7323 7324 do { 7325 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); 7326 err = send_and_recv_msgs(drv, msg, survey_handler, 7327 survey_results); 7328 } while (err > 0); 7329 7330 if (err) 7331 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); 7332 else 7333 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); 7334 7335 clean_survey_results(survey_results); 7336 return err; 7337} 7338 7339 7340static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len, 7341 const u8 *kck, size_t kck_len, 7342 const u8 *replay_ctr) 7343{ 7344 struct i802_bss *bss = priv; 7345 struct wpa_driver_nl80211_data *drv = bss->drv; 7346 struct nlattr *replay_nested; 7347 struct nl_msg *msg; 7348 int ret; 7349 7350 if (!drv->set_rekey_offload) 7351 return; 7352 7353 wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload"); 7354 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) || 7355 !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) || 7356 nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) || 7357 nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck) || 7358 nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, 7359 replay_ctr)) { 7360 nl80211_nlmsg_clear(msg); 7361 nlmsg_free(msg); 7362 return; 7363 } 7364 7365 nla_nest_end(msg, replay_nested); 7366 7367 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1); 7368 if (ret == -EOPNOTSUPP) { 7369 wpa_printf(MSG_DEBUG, 7370 "nl80211: Driver does not support rekey offload"); 7371 drv->set_rekey_offload = 0; 7372 } 7373} 7374 7375 7376static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, 7377 const u8 *addr, int qos) 7378{ 7379 /* send data frame to poll STA and check whether 7380 * this frame is ACKed */ 7381 struct { 7382 struct ieee80211_hdr hdr; 7383 u16 qos_ctl; 7384 } STRUCT_PACKED nulldata; 7385 size_t size; 7386 7387 /* Send data frame to poll STA and check whether this frame is ACKed */ 7388 7389 os_memset(&nulldata, 0, sizeof(nulldata)); 7390 7391 if (qos) { 7392 nulldata.hdr.frame_control = 7393 IEEE80211_FC(WLAN_FC_TYPE_DATA, 7394 WLAN_FC_STYPE_QOS_NULL); 7395 size = sizeof(nulldata); 7396 } else { 7397 nulldata.hdr.frame_control = 7398 IEEE80211_FC(WLAN_FC_TYPE_DATA, 7399 WLAN_FC_STYPE_NULLFUNC); 7400 size = sizeof(struct ieee80211_hdr); 7401 } 7402 7403 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); 7404 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); 7405 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); 7406 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); 7407 7408 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 7409 0, 0, NULL, 0) < 0) 7410 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " 7411 "send poll frame"); 7412} 7413 7414static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, 7415 int qos) 7416{ 7417 struct i802_bss *bss = priv; 7418 struct wpa_driver_nl80211_data *drv = bss->drv; 7419 struct nl_msg *msg; 7420 int ret; 7421 7422 if (!drv->poll_command_supported) { 7423 nl80211_send_null_frame(bss, own_addr, addr, qos); 7424 return; 7425 } 7426 7427 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) || 7428 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 7429 nlmsg_free(msg); 7430 return; 7431 } 7432 7433 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7434 if (ret < 0) { 7435 wpa_printf(MSG_DEBUG, "nl80211: Client probe request for " 7436 MACSTR " failed: ret=%d (%s)", 7437 MAC2STR(addr), ret, strerror(-ret)); 7438 } 7439} 7440 7441 7442static int nl80211_set_power_save(struct i802_bss *bss, int enabled) 7443{ 7444 struct nl_msg *msg; 7445 7446 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) || 7447 nla_put_u32(msg, NL80211_ATTR_PS_STATE, 7448 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) { 7449 nlmsg_free(msg); 7450 return -ENOBUFS; 7451 } 7452 return send_and_recv_msgs(bss->drv, msg, NULL, NULL); 7453} 7454 7455 7456static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, 7457 int ctwindow) 7458{ 7459 struct i802_bss *bss = priv; 7460 7461 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " 7462 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); 7463 7464 if (opp_ps != -1 || ctwindow != -1) { 7465#ifdef ANDROID_P2P 7466 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); 7467#else /* ANDROID_P2P */ 7468 return -1; /* Not yet supported */ 7469#endif /* ANDROID_P2P */ 7470 } 7471 7472 if (legacy_ps == -1) 7473 return 0; 7474 if (legacy_ps != 0 && legacy_ps != 1) 7475 return -1; /* Not yet supported */ 7476 7477 return nl80211_set_power_save(bss, legacy_ps); 7478} 7479 7480 7481static int nl80211_start_radar_detection(void *priv, 7482 struct hostapd_freq_params *freq) 7483{ 7484 struct i802_bss *bss = priv; 7485 struct wpa_driver_nl80211_data *drv = bss->drv; 7486 struct nl_msg *msg; 7487 int ret; 7488 7489 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)", 7490 freq->freq, freq->ht_enabled, freq->vht_enabled, 7491 freq->bandwidth, freq->center_freq1, freq->center_freq2); 7492 7493 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { 7494 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " 7495 "detection"); 7496 return -1; 7497 } 7498 7499 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) || 7500 nl80211_put_freq_params(msg, freq) < 0) { 7501 nlmsg_free(msg); 7502 return -1; 7503 } 7504 7505 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7506 if (ret == 0) 7507 return 0; 7508 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " 7509 "%d (%s)", ret, strerror(-ret)); 7510 return -1; 7511} 7512 7513#ifdef CONFIG_TDLS 7514 7515static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, 7516 u8 dialog_token, u16 status_code, 7517 u32 peer_capab, int initiator, const u8 *buf, 7518 size_t len) 7519{ 7520 struct i802_bss *bss = priv; 7521 struct wpa_driver_nl80211_data *drv = bss->drv; 7522 struct nl_msg *msg; 7523 7524 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7525 return -EOPNOTSUPP; 7526 7527 if (!dst) 7528 return -EINVAL; 7529 7530 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) || 7531 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || 7532 nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) || 7533 nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) || 7534 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code)) 7535 goto fail; 7536 if (peer_capab) { 7537 /* 7538 * The internal enum tdls_peer_capability definition is 7539 * currently identical with the nl80211 enum 7540 * nl80211_tdls_peer_capability, so no conversion is needed 7541 * here. 7542 */ 7543 if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, 7544 peer_capab)) 7545 goto fail; 7546 } 7547 if ((initiator && 7548 nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) || 7549 nla_put(msg, NL80211_ATTR_IE, len, buf)) 7550 goto fail; 7551 7552 return send_and_recv_msgs(drv, msg, NULL, NULL); 7553 7554fail: 7555 nlmsg_free(msg); 7556 return -ENOBUFS; 7557} 7558 7559 7560static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) 7561{ 7562 struct i802_bss *bss = priv; 7563 struct wpa_driver_nl80211_data *drv = bss->drv; 7564 struct nl_msg *msg; 7565 enum nl80211_tdls_operation nl80211_oper; 7566 7567 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) 7568 return -EOPNOTSUPP; 7569 7570 switch (oper) { 7571 case TDLS_DISCOVERY_REQ: 7572 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; 7573 break; 7574 case TDLS_SETUP: 7575 nl80211_oper = NL80211_TDLS_SETUP; 7576 break; 7577 case TDLS_TEARDOWN: 7578 nl80211_oper = NL80211_TDLS_TEARDOWN; 7579 break; 7580 case TDLS_ENABLE_LINK: 7581 nl80211_oper = NL80211_TDLS_ENABLE_LINK; 7582 break; 7583 case TDLS_DISABLE_LINK: 7584 nl80211_oper = NL80211_TDLS_DISABLE_LINK; 7585 break; 7586 case TDLS_ENABLE: 7587 return 0; 7588 case TDLS_DISABLE: 7589 return 0; 7590 default: 7591 return -EINVAL; 7592 } 7593 7594 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) || 7595 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) || 7596 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) { 7597 nlmsg_free(msg); 7598 return -ENOBUFS; 7599 } 7600 7601 return send_and_recv_msgs(drv, msg, NULL, NULL); 7602} 7603 7604 7605static int 7606nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class, 7607 const struct hostapd_freq_params *params) 7608{ 7609 struct i802_bss *bss = priv; 7610 struct wpa_driver_nl80211_data *drv = bss->drv; 7611 struct nl_msg *msg; 7612 int ret = -ENOBUFS; 7613 7614 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || 7615 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) 7616 return -EOPNOTSUPP; 7617 7618 wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR 7619 " oper_class=%u freq=%u", 7620 MAC2STR(addr), oper_class, params->freq); 7621 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH); 7622 if (!msg || 7623 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 7624 nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) || 7625 (ret = nl80211_put_freq_params(msg, params))) { 7626 nlmsg_free(msg); 7627 wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch"); 7628 return ret; 7629 } 7630 7631 return send_and_recv_msgs(drv, msg, NULL, NULL); 7632} 7633 7634 7635static int 7636nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr) 7637{ 7638 struct i802_bss *bss = priv; 7639 struct wpa_driver_nl80211_data *drv = bss->drv; 7640 struct nl_msg *msg; 7641 7642 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || 7643 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) 7644 return -EOPNOTSUPP; 7645 7646 wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR, 7647 MAC2STR(addr)); 7648 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH); 7649 if (!msg || 7650 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 7651 nlmsg_free(msg); 7652 wpa_printf(MSG_DEBUG, 7653 "nl80211: Could not build TDLS cancel chan switch"); 7654 return -ENOBUFS; 7655 } 7656 7657 return send_and_recv_msgs(drv, msg, NULL, NULL); 7658} 7659 7660#endif /* CONFIG TDLS */ 7661 7662 7663static int driver_nl80211_set_key(const char *ifname, void *priv, 7664 enum wpa_alg alg, const u8 *addr, 7665 int key_idx, int set_tx, 7666 const u8 *seq, size_t seq_len, 7667 const u8 *key, size_t key_len) 7668{ 7669 struct i802_bss *bss = priv; 7670 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, 7671 set_tx, seq, seq_len, key, key_len); 7672} 7673 7674 7675static int driver_nl80211_scan2(void *priv, 7676 struct wpa_driver_scan_params *params) 7677{ 7678 struct i802_bss *bss = priv; 7679#ifdef CONFIG_DRIVER_NL80211_QCA 7680 struct wpa_driver_nl80211_data *drv = bss->drv; 7681 7682 /* 7683 * Do a vendor specific scan if possible. If only_new_results is 7684 * set, do a normal scan since a kernel (cfg80211) BSS cache flush 7685 * cannot be achieved through a vendor scan. The below condition may 7686 * need to be modified if new scan flags are added in the future whose 7687 * functionality can only be achieved through a normal scan. 7688 */ 7689 if (drv->scan_vendor_cmd_avail && !params->only_new_results) 7690 return wpa_driver_nl80211_vendor_scan(bss, params); 7691#endif /* CONFIG_DRIVER_NL80211_QCA */ 7692 return wpa_driver_nl80211_scan(bss, params); 7693} 7694 7695 7696static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, 7697 int reason_code) 7698{ 7699 struct i802_bss *bss = priv; 7700 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); 7701} 7702 7703 7704static int driver_nl80211_authenticate(void *priv, 7705 struct wpa_driver_auth_params *params) 7706{ 7707 struct i802_bss *bss = priv; 7708 return wpa_driver_nl80211_authenticate(bss, params); 7709} 7710 7711 7712static void driver_nl80211_deinit(void *priv) 7713{ 7714 struct i802_bss *bss = priv; 7715 wpa_driver_nl80211_deinit(bss); 7716} 7717 7718 7719static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, 7720 const char *ifname) 7721{ 7722 struct i802_bss *bss = priv; 7723 return wpa_driver_nl80211_if_remove(bss, type, ifname); 7724} 7725 7726 7727static int driver_nl80211_send_mlme(void *priv, const u8 *data, 7728 size_t data_len, int noack, 7729 unsigned int freq, 7730 const u16 *csa_offs, size_t csa_offs_len) 7731{ 7732 struct i802_bss *bss = priv; 7733 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, 7734 freq, 0, 0, 0, csa_offs, 7735 csa_offs_len); 7736} 7737 7738 7739static int driver_nl80211_sta_remove(void *priv, const u8 *addr) 7740{ 7741 struct i802_bss *bss = priv; 7742 return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0); 7743} 7744 7745 7746static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, 7747 const char *ifname, int vlan_id) 7748{ 7749 struct i802_bss *bss = priv; 7750 return i802_set_sta_vlan(bss, addr, ifname, vlan_id); 7751} 7752 7753 7754static int driver_nl80211_read_sta_data(void *priv, 7755 struct hostap_sta_driver_data *data, 7756 const u8 *addr) 7757{ 7758 struct i802_bss *bss = priv; 7759 return i802_read_sta_data(bss, data, addr); 7760} 7761 7762 7763static int driver_nl80211_send_action(void *priv, unsigned int freq, 7764 unsigned int wait_time, 7765 const u8 *dst, const u8 *src, 7766 const u8 *bssid, 7767 const u8 *data, size_t data_len, 7768 int no_cck) 7769{ 7770 struct i802_bss *bss = priv; 7771 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, 7772 bssid, data, data_len, no_cck); 7773} 7774 7775 7776static int driver_nl80211_probe_req_report(void *priv, int report) 7777{ 7778 struct i802_bss *bss = priv; 7779 return wpa_driver_nl80211_probe_req_report(bss, report); 7780} 7781 7782 7783static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, 7784 const u8 *ies, size_t ies_len) 7785{ 7786 int ret; 7787 struct nl_msg *msg; 7788 struct i802_bss *bss = priv; 7789 struct wpa_driver_nl80211_data *drv = bss->drv; 7790 u16 mdid = WPA_GET_LE16(md); 7791 7792 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); 7793 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) || 7794 nla_put(msg, NL80211_ATTR_IE, ies_len, ies) || 7795 nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) { 7796 nlmsg_free(msg); 7797 return -ENOBUFS; 7798 } 7799 7800 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 7801 if (ret) { 7802 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " 7803 "err=%d (%s)", ret, strerror(-ret)); 7804 } 7805 7806 return ret; 7807} 7808 7809 7810static const u8 * wpa_driver_nl80211_get_macaddr(void *priv) 7811{ 7812 struct i802_bss *bss = priv; 7813 struct wpa_driver_nl80211_data *drv = bss->drv; 7814 7815 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) 7816 return NULL; 7817 7818 return bss->addr; 7819} 7820 7821 7822static const char * scan_state_str(enum scan_states scan_state) 7823{ 7824 switch (scan_state) { 7825 case NO_SCAN: 7826 return "NO_SCAN"; 7827 case SCAN_REQUESTED: 7828 return "SCAN_REQUESTED"; 7829 case SCAN_STARTED: 7830 return "SCAN_STARTED"; 7831 case SCAN_COMPLETED: 7832 return "SCAN_COMPLETED"; 7833 case SCAN_ABORTED: 7834 return "SCAN_ABORTED"; 7835 case SCHED_SCAN_STARTED: 7836 return "SCHED_SCAN_STARTED"; 7837 case SCHED_SCAN_STOPPED: 7838 return "SCHED_SCAN_STOPPED"; 7839 case SCHED_SCAN_RESULTS: 7840 return "SCHED_SCAN_RESULTS"; 7841 } 7842 7843 return "??"; 7844} 7845 7846 7847static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) 7848{ 7849 struct i802_bss *bss = priv; 7850 struct wpa_driver_nl80211_data *drv = bss->drv; 7851 int res; 7852 char *pos, *end; 7853 7854 pos = buf; 7855 end = buf + buflen; 7856 7857 res = os_snprintf(pos, end - pos, 7858 "ifindex=%d\n" 7859 "ifname=%s\n" 7860 "brname=%s\n" 7861 "addr=" MACSTR "\n" 7862 "freq=%d\n" 7863 "%s%s%s%s%s", 7864 bss->ifindex, 7865 bss->ifname, 7866 bss->brname, 7867 MAC2STR(bss->addr), 7868 bss->freq, 7869 bss->beacon_set ? "beacon_set=1\n" : "", 7870 bss->added_if_into_bridge ? 7871 "added_if_into_bridge=1\n" : "", 7872 bss->added_bridge ? "added_bridge=1\n" : "", 7873 bss->in_deinit ? "in_deinit=1\n" : "", 7874 bss->if_dynamic ? "if_dynamic=1\n" : ""); 7875 if (os_snprintf_error(end - pos, res)) 7876 return pos - buf; 7877 pos += res; 7878 7879 if (bss->wdev_id_set) { 7880 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", 7881 (unsigned long long) bss->wdev_id); 7882 if (os_snprintf_error(end - pos, res)) 7883 return pos - buf; 7884 pos += res; 7885 } 7886 7887 res = os_snprintf(pos, end - pos, 7888 "phyname=%s\n" 7889 "perm_addr=" MACSTR "\n" 7890 "drv_ifindex=%d\n" 7891 "operstate=%d\n" 7892 "scan_state=%s\n" 7893 "auth_bssid=" MACSTR "\n" 7894 "auth_attempt_bssid=" MACSTR "\n" 7895 "bssid=" MACSTR "\n" 7896 "prev_bssid=" MACSTR "\n" 7897 "associated=%d\n" 7898 "assoc_freq=%u\n" 7899 "monitor_sock=%d\n" 7900 "monitor_ifidx=%d\n" 7901 "monitor_refcount=%d\n" 7902 "last_mgmt_freq=%u\n" 7903 "eapol_tx_sock=%d\n" 7904 "%s%s%s%s%s%s%s%s%s%s%s%s%s", 7905 drv->phyname, 7906 MAC2STR(drv->perm_addr), 7907 drv->ifindex, 7908 drv->operstate, 7909 scan_state_str(drv->scan_state), 7910 MAC2STR(drv->auth_bssid), 7911 MAC2STR(drv->auth_attempt_bssid), 7912 MAC2STR(drv->bssid), 7913 MAC2STR(drv->prev_bssid), 7914 drv->associated, 7915 drv->assoc_freq, 7916 drv->monitor_sock, 7917 drv->monitor_ifidx, 7918 drv->monitor_refcount, 7919 drv->last_mgmt_freq, 7920 drv->eapol_tx_sock, 7921 drv->ignore_if_down_event ? 7922 "ignore_if_down_event=1\n" : "", 7923 drv->scan_complete_events ? 7924 "scan_complete_events=1\n" : "", 7925 drv->disabled_11b_rates ? 7926 "disabled_11b_rates=1\n" : "", 7927 drv->pending_remain_on_chan ? 7928 "pending_remain_on_chan=1\n" : "", 7929 drv->in_interface_list ? "in_interface_list=1\n" : "", 7930 drv->device_ap_sme ? "device_ap_sme=1\n" : "", 7931 drv->poll_command_supported ? 7932 "poll_command_supported=1\n" : "", 7933 drv->data_tx_status ? "data_tx_status=1\n" : "", 7934 drv->scan_for_auth ? "scan_for_auth=1\n" : "", 7935 drv->retry_auth ? "retry_auth=1\n" : "", 7936 drv->use_monitor ? "use_monitor=1\n" : "", 7937 drv->ignore_next_local_disconnect ? 7938 "ignore_next_local_disconnect=1\n" : "", 7939 drv->ignore_next_local_deauth ? 7940 "ignore_next_local_deauth=1\n" : ""); 7941 if (os_snprintf_error(end - pos, res)) 7942 return pos - buf; 7943 pos += res; 7944 7945 if (drv->has_capability) { 7946 res = os_snprintf(pos, end - pos, 7947 "capa.key_mgmt=0x%x\n" 7948 "capa.enc=0x%x\n" 7949 "capa.auth=0x%x\n" 7950 "capa.flags=0x%llx\n" 7951 "capa.rrm_flags=0x%x\n" 7952 "capa.max_scan_ssids=%d\n" 7953 "capa.max_sched_scan_ssids=%d\n" 7954 "capa.sched_scan_supported=%d\n" 7955 "capa.max_match_sets=%d\n" 7956 "capa.max_remain_on_chan=%u\n" 7957 "capa.max_stations=%u\n" 7958 "capa.probe_resp_offloads=0x%x\n" 7959 "capa.max_acl_mac_addrs=%u\n" 7960 "capa.num_multichan_concurrent=%u\n" 7961 "capa.mac_addr_rand_sched_scan_supported=%d\n" 7962 "capa.mac_addr_rand_scan_supported=%d\n" 7963 "capa.conc_capab=%u\n" 7964 "capa.max_conc_chan_2_4=%u\n" 7965 "capa.max_conc_chan_5_0=%u\n" 7966 "capa.max_sched_scan_plans=%u\n" 7967 "capa.max_sched_scan_plan_interval=%u\n" 7968 "capa.max_sched_scan_plan_iterations=%u\n", 7969 drv->capa.key_mgmt, 7970 drv->capa.enc, 7971 drv->capa.auth, 7972 (unsigned long long) drv->capa.flags, 7973 drv->capa.rrm_flags, 7974 drv->capa.max_scan_ssids, 7975 drv->capa.max_sched_scan_ssids, 7976 drv->capa.sched_scan_supported, 7977 drv->capa.max_match_sets, 7978 drv->capa.max_remain_on_chan, 7979 drv->capa.max_stations, 7980 drv->capa.probe_resp_offloads, 7981 drv->capa.max_acl_mac_addrs, 7982 drv->capa.num_multichan_concurrent, 7983 drv->capa.mac_addr_rand_sched_scan_supported, 7984 drv->capa.mac_addr_rand_scan_supported, 7985 drv->capa.conc_capab, 7986 drv->capa.max_conc_chan_2_4, 7987 drv->capa.max_conc_chan_5_0, 7988 drv->capa.max_sched_scan_plans, 7989 drv->capa.max_sched_scan_plan_interval, 7990 drv->capa.max_sched_scan_plan_iterations); 7991 if (os_snprintf_error(end - pos, res)) 7992 return pos - buf; 7993 pos += res; 7994 } 7995 7996 return pos - buf; 7997} 7998 7999 8000static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) 8001{ 8002 if ((settings->head && 8003 nla_put(msg, NL80211_ATTR_BEACON_HEAD, 8004 settings->head_len, settings->head)) || 8005 (settings->tail && 8006 nla_put(msg, NL80211_ATTR_BEACON_TAIL, 8007 settings->tail_len, settings->tail)) || 8008 (settings->beacon_ies && 8009 nla_put(msg, NL80211_ATTR_IE, 8010 settings->beacon_ies_len, settings->beacon_ies)) || 8011 (settings->proberesp_ies && 8012 nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, 8013 settings->proberesp_ies_len, settings->proberesp_ies)) || 8014 (settings->assocresp_ies && 8015 nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, 8016 settings->assocresp_ies_len, settings->assocresp_ies)) || 8017 (settings->probe_resp && 8018 nla_put(msg, NL80211_ATTR_PROBE_RESP, 8019 settings->probe_resp_len, settings->probe_resp))) 8020 return -ENOBUFS; 8021 8022 return 0; 8023} 8024 8025 8026static int nl80211_switch_channel(void *priv, struct csa_settings *settings) 8027{ 8028 struct nl_msg *msg; 8029 struct i802_bss *bss = priv; 8030 struct wpa_driver_nl80211_data *drv = bss->drv; 8031 struct nlattr *beacon_csa; 8032 int ret = -ENOBUFS; 8033 int csa_off_len = 0; 8034 int i; 8035 8036 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", 8037 settings->cs_count, settings->block_tx, 8038 settings->freq_params.freq, settings->freq_params.bandwidth, 8039 settings->freq_params.center_freq1, 8040 settings->freq_params.center_freq2); 8041 8042 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { 8043 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); 8044 return -EOPNOTSUPP; 8045 } 8046 8047 if ((drv->nlmode != NL80211_IFTYPE_AP) && 8048 (drv->nlmode != NL80211_IFTYPE_P2P_GO)) 8049 return -EOPNOTSUPP; 8050 8051 /* 8052 * Remove empty counters, assuming Probe Response and Beacon frame 8053 * counters match. This implementation assumes that there are only two 8054 * counters. 8055 */ 8056 if (settings->counter_offset_beacon[0] && 8057 !settings->counter_offset_beacon[1]) { 8058 csa_off_len = 1; 8059 } else if (settings->counter_offset_beacon[1] && 8060 !settings->counter_offset_beacon[0]) { 8061 csa_off_len = 1; 8062 settings->counter_offset_beacon[0] = 8063 settings->counter_offset_beacon[1]; 8064 settings->counter_offset_presp[0] = 8065 settings->counter_offset_presp[1]; 8066 } else if (settings->counter_offset_beacon[1] && 8067 settings->counter_offset_beacon[0]) { 8068 csa_off_len = 2; 8069 } else { 8070 wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided"); 8071 return -EINVAL; 8072 } 8073 8074 /* Check CSA counters validity */ 8075 if (drv->capa.max_csa_counters && 8076 csa_off_len > drv->capa.max_csa_counters) { 8077 wpa_printf(MSG_ERROR, 8078 "nl80211: Too many CSA counters provided"); 8079 return -EINVAL; 8080 } 8081 8082 if (!settings->beacon_csa.tail) 8083 return -EINVAL; 8084 8085 for (i = 0; i < csa_off_len; i++) { 8086 u16 csa_c_off_bcn = settings->counter_offset_beacon[i]; 8087 u16 csa_c_off_presp = settings->counter_offset_presp[i]; 8088 8089 if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) || 8090 (settings->beacon_csa.tail[csa_c_off_bcn] != 8091 settings->cs_count)) 8092 return -EINVAL; 8093 8094 if (settings->beacon_csa.probe_resp && 8095 ((settings->beacon_csa.probe_resp_len <= 8096 csa_c_off_presp) || 8097 (settings->beacon_csa.probe_resp[csa_c_off_presp] != 8098 settings->cs_count))) 8099 return -EINVAL; 8100 } 8101 8102 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) || 8103 nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, 8104 settings->cs_count) || 8105 (ret = nl80211_put_freq_params(msg, &settings->freq_params)) || 8106 (settings->block_tx && 8107 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX))) 8108 goto error; 8109 8110 /* beacon_after params */ 8111 ret = set_beacon_data(msg, &settings->beacon_after); 8112 if (ret) 8113 goto error; 8114 8115 /* beacon_csa params */ 8116 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); 8117 if (!beacon_csa) 8118 goto fail; 8119 8120 ret = set_beacon_data(msg, &settings->beacon_csa); 8121 if (ret) 8122 goto error; 8123 8124 if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON, 8125 csa_off_len * sizeof(u16), 8126 settings->counter_offset_beacon) || 8127 (settings->beacon_csa.probe_resp && 8128 nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP, 8129 csa_off_len * sizeof(u16), 8130 settings->counter_offset_presp))) 8131 goto fail; 8132 8133 nla_nest_end(msg, beacon_csa); 8134 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8135 if (ret) { 8136 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", 8137 ret, strerror(-ret)); 8138 } 8139 return ret; 8140 8141fail: 8142 ret = -ENOBUFS; 8143error: 8144 nlmsg_free(msg); 8145 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); 8146 return ret; 8147} 8148 8149 8150static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr, 8151 u8 user_priority, u16 admitted_time) 8152{ 8153 struct i802_bss *bss = priv; 8154 struct wpa_driver_nl80211_data *drv = bss->drv; 8155 struct nl_msg *msg; 8156 int ret; 8157 8158 wpa_printf(MSG_DEBUG, 8159 "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d", 8160 tsid, admitted_time, user_priority); 8161 8162 if (!is_sta_interface(drv->nlmode)) 8163 return -ENOTSUP; 8164 8165 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS); 8166 if (!msg || 8167 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || 8168 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || 8169 nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) || 8170 nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) { 8171 nlmsg_free(msg); 8172 return -ENOBUFS; 8173 } 8174 8175 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8176 if (ret) 8177 wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)", 8178 ret, strerror(-ret)); 8179 return ret; 8180} 8181 8182 8183static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr) 8184{ 8185 struct i802_bss *bss = priv; 8186 struct wpa_driver_nl80211_data *drv = bss->drv; 8187 struct nl_msg *msg; 8188 int ret; 8189 8190 wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid); 8191 8192 if (!is_sta_interface(drv->nlmode)) 8193 return -ENOTSUP; 8194 8195 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) || 8196 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || 8197 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { 8198 nlmsg_free(msg); 8199 return -ENOBUFS; 8200 } 8201 8202 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8203 if (ret) 8204 wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)", 8205 ret, strerror(-ret)); 8206 return ret; 8207} 8208 8209 8210#ifdef CONFIG_TESTING_OPTIONS 8211static int cmd_reply_handler(struct nl_msg *msg, void *arg) 8212{ 8213 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8214 struct wpabuf *buf = arg; 8215 8216 if (!buf) 8217 return NL_SKIP; 8218 8219 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { 8220 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); 8221 return NL_SKIP; 8222 } 8223 8224 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), 8225 genlmsg_attrlen(gnlh, 0)); 8226 8227 return NL_SKIP; 8228} 8229#endif /* CONFIG_TESTING_OPTIONS */ 8230 8231 8232static int vendor_reply_handler(struct nl_msg *msg, void *arg) 8233{ 8234 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 8235 struct nlattr *nl_vendor_reply, *nl; 8236 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 8237 struct wpabuf *buf = arg; 8238 int rem; 8239 8240 if (!buf) 8241 return NL_SKIP; 8242 8243 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 8244 genlmsg_attrlen(gnlh, 0), NULL); 8245 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; 8246 8247 if (!nl_vendor_reply) 8248 return NL_SKIP; 8249 8250 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { 8251 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); 8252 return NL_SKIP; 8253 } 8254 8255 nla_for_each_nested(nl, nl_vendor_reply, rem) { 8256 wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); 8257 } 8258 8259 return NL_SKIP; 8260} 8261 8262 8263static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, 8264 unsigned int subcmd, const u8 *data, 8265 size_t data_len, struct wpabuf *buf) 8266{ 8267 struct i802_bss *bss = priv; 8268 struct wpa_driver_nl80211_data *drv = bss->drv; 8269 struct nl_msg *msg; 8270 int ret; 8271 8272#ifdef CONFIG_TESTING_OPTIONS 8273 if (vendor_id == 0xffffffff) { 8274 msg = nlmsg_alloc(); 8275 if (!msg) 8276 return -ENOMEM; 8277 8278 nl80211_cmd(drv, msg, 0, subcmd); 8279 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 8280 0) 8281 goto fail; 8282 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf); 8283 if (ret) 8284 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", 8285 ret); 8286 return ret; 8287 } 8288#endif /* CONFIG_TESTING_OPTIONS */ 8289 8290 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) || 8291 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) || 8292 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) || 8293 (data && 8294 nla_put(msg, NL80211_ATTR_VENDOR_DATA, data_len, data))) 8295 goto fail; 8296 8297 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf); 8298 if (ret) 8299 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", 8300 ret); 8301 return ret; 8302 8303fail: 8304 nlmsg_free(msg); 8305 return -ENOBUFS; 8306} 8307 8308 8309static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, 8310 u8 qos_map_set_len) 8311{ 8312 struct i802_bss *bss = priv; 8313 struct wpa_driver_nl80211_data *drv = bss->drv; 8314 struct nl_msg *msg; 8315 int ret; 8316 8317 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", 8318 qos_map_set, qos_map_set_len); 8319 8320 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) || 8321 nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) { 8322 nlmsg_free(msg); 8323 return -ENOBUFS; 8324 } 8325 8326 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8327 if (ret) 8328 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); 8329 8330 return ret; 8331} 8332 8333 8334static int nl80211_set_wowlan(void *priv, 8335 const struct wowlan_triggers *triggers) 8336{ 8337 struct i802_bss *bss = priv; 8338 struct wpa_driver_nl80211_data *drv = bss->drv; 8339 struct nl_msg *msg; 8340 struct nlattr *wowlan_triggers; 8341 int ret; 8342 8343 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); 8344 8345 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) || 8346 !(wowlan_triggers = nla_nest_start(msg, 8347 NL80211_ATTR_WOWLAN_TRIGGERS)) || 8348 (triggers->any && 8349 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || 8350 (triggers->disconnect && 8351 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || 8352 (triggers->magic_pkt && 8353 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || 8354 (triggers->gtk_rekey_failure && 8355 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || 8356 (triggers->eap_identity_req && 8357 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || 8358 (triggers->four_way_handshake && 8359 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || 8360 (triggers->rfkill_release && 8361 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) { 8362 nlmsg_free(msg); 8363 return -ENOBUFS; 8364 } 8365 8366 nla_nest_end(msg, wowlan_triggers); 8367 8368 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8369 if (ret) 8370 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); 8371 8372 return ret; 8373} 8374 8375 8376#ifdef CONFIG_DRIVER_NL80211_QCA 8377static int nl80211_roaming(void *priv, int allowed, const u8 *bssid) 8378{ 8379 struct i802_bss *bss = priv; 8380 struct wpa_driver_nl80211_data *drv = bss->drv; 8381 struct nl_msg *msg; 8382 struct nlattr *params; 8383 8384 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed); 8385 8386 if (!drv->roaming_vendor_cmd_avail) { 8387 wpa_printf(MSG_DEBUG, 8388 "nl80211: Ignore roaming policy change since driver does not provide command for setting it"); 8389 return -1; 8390 } 8391 8392 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 8393 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 8394 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 8395 QCA_NL80211_VENDOR_SUBCMD_ROAMING) || 8396 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 8397 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY, 8398 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS : 8399 QCA_ROAMING_NOT_ALLOWED) || 8400 (bssid && 8401 nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) { 8402 nlmsg_free(msg); 8403 return -1; 8404 } 8405 nla_nest_end(msg, params); 8406 8407 return send_and_recv_msgs(drv, msg, NULL, NULL); 8408} 8409#endif /* CONFIG_DRIVER_NL80211_QCA */ 8410 8411 8412static int nl80211_set_mac_addr(void *priv, const u8 *addr) 8413{ 8414 struct i802_bss *bss = priv; 8415 struct wpa_driver_nl80211_data *drv = bss->drv; 8416 int new_addr = addr != NULL; 8417 8418 if (TEST_FAIL()) 8419 return -1; 8420 8421 if (!addr) 8422 addr = drv->perm_addr; 8423 8424 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0) 8425 return -1; 8426 8427 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0) 8428 { 8429 wpa_printf(MSG_DEBUG, 8430 "nl80211: failed to set_mac_addr for %s to " MACSTR, 8431 bss->ifname, MAC2STR(addr)); 8432 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 8433 1) < 0) { 8434 wpa_printf(MSG_DEBUG, 8435 "nl80211: Could not restore interface UP after failed set_mac_addr"); 8436 } 8437 return -1; 8438 } 8439 8440 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR, 8441 bss->ifname, MAC2STR(addr)); 8442 drv->addr_changed = new_addr; 8443 os_memcpy(bss->addr, addr, ETH_ALEN); 8444 8445 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0) 8446 { 8447 wpa_printf(MSG_DEBUG, 8448 "nl80211: Could not restore interface UP after set_mac_addr"); 8449 } 8450 8451 return 0; 8452} 8453 8454 8455#ifdef CONFIG_MESH 8456 8457static int wpa_driver_nl80211_init_mesh(void *priv) 8458{ 8459 if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) { 8460 wpa_printf(MSG_INFO, 8461 "nl80211: Failed to set interface into mesh mode"); 8462 return -1; 8463 } 8464 return 0; 8465} 8466 8467 8468static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id, 8469 size_t mesh_id_len) 8470{ 8471 if (mesh_id) { 8472 wpa_hexdump_ascii(MSG_DEBUG, " * Mesh ID (SSID)", 8473 mesh_id, mesh_id_len); 8474 return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id); 8475 } 8476 8477 return 0; 8478} 8479 8480 8481static int nl80211_put_mesh_config(struct nl_msg *msg, 8482 struct wpa_driver_mesh_bss_params *params) 8483{ 8484 struct nlattr *container; 8485 8486 container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); 8487 if (!container) 8488 return -1; 8489 8490 if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) && 8491 nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, 8492 params->auto_plinks)) || 8493 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) && 8494 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, 8495 params->max_peer_links))) 8496 return -1; 8497 8498 /* 8499 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because 8500 * the timer could disconnect stations even in that case. 8501 */ 8502 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) && 8503 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, 8504 params->peer_link_timeout)) { 8505 wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT"); 8506 return -1; 8507 } 8508 8509 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) && 8510 nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) { 8511 wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE"); 8512 return -1; 8513 } 8514 8515 nla_nest_end(msg, container); 8516 8517 return 0; 8518} 8519 8520 8521static int nl80211_join_mesh(struct i802_bss *bss, 8522 struct wpa_driver_mesh_join_params *params) 8523{ 8524 struct wpa_driver_nl80211_data *drv = bss->drv; 8525 struct nl_msg *msg; 8526 struct nlattr *container; 8527 int ret = -1; 8528 8529 wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex); 8530 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH); 8531 if (!msg || 8532 nl80211_put_freq_params(msg, ¶ms->freq) || 8533 nl80211_put_basic_rates(msg, params->basic_rates) || 8534 nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) || 8535 nl80211_put_beacon_int(msg, params->beacon_int) || 8536 nl80211_put_dtim_period(msg, params->dtim_period)) 8537 goto fail; 8538 8539 wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags); 8540 8541 container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP); 8542 if (!container) 8543 goto fail; 8544 8545 if (params->ies) { 8546 wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len); 8547 if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len, 8548 params->ies)) 8549 goto fail; 8550 } 8551 /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */ 8552 if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) { 8553 if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) || 8554 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH)) 8555 goto fail; 8556 } 8557 if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) && 8558 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE)) 8559 goto fail; 8560 if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) && 8561 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM)) 8562 goto fail; 8563 nla_nest_end(msg, container); 8564 8565 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS; 8566 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT; 8567 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS; 8568 if (nl80211_put_mesh_config(msg, ¶ms->conf) < 0) 8569 goto fail; 8570 8571 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8572 msg = NULL; 8573 if (ret) { 8574 wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)", 8575 ret, strerror(-ret)); 8576 goto fail; 8577 } 8578 ret = 0; 8579 drv->assoc_freq = bss->freq = params->freq.freq; 8580 wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully"); 8581 8582fail: 8583 nlmsg_free(msg); 8584 return ret; 8585} 8586 8587 8588static int 8589wpa_driver_nl80211_join_mesh(void *priv, 8590 struct wpa_driver_mesh_join_params *params) 8591{ 8592 struct i802_bss *bss = priv; 8593 int ret, timeout; 8594 8595 timeout = params->conf.peer_link_timeout; 8596 8597 /* Disable kernel inactivity timer */ 8598 if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) 8599 params->conf.peer_link_timeout = 0; 8600 8601 ret = nl80211_join_mesh(bss, params); 8602 if (ret == -EINVAL && params->conf.peer_link_timeout == 0) { 8603 wpa_printf(MSG_DEBUG, 8604 "nl80211: Mesh join retry for peer_link_timeout"); 8605 /* 8606 * Old kernel does not support setting 8607 * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds 8608 * into future from peer_link_timeout. 8609 */ 8610 params->conf.peer_link_timeout = timeout + 60; 8611 ret = nl80211_join_mesh(priv, params); 8612 } 8613 8614 params->conf.peer_link_timeout = timeout; 8615 return ret; 8616} 8617 8618 8619static int wpa_driver_nl80211_leave_mesh(void *priv) 8620{ 8621 struct i802_bss *bss = priv; 8622 struct wpa_driver_nl80211_data *drv = bss->drv; 8623 struct nl_msg *msg; 8624 int ret; 8625 8626 wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex); 8627 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH); 8628 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 8629 if (ret) { 8630 wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)", 8631 ret, strerror(-ret)); 8632 } else { 8633 wpa_printf(MSG_DEBUG, 8634 "nl80211: mesh leave request send successfully"); 8635 } 8636 8637 if (wpa_driver_nl80211_set_mode(drv->first_bss, 8638 NL80211_IFTYPE_STATION)) { 8639 wpa_printf(MSG_INFO, 8640 "nl80211: Failed to set interface into station mode"); 8641 } 8642 return ret; 8643} 8644 8645#endif /* CONFIG_MESH */ 8646 8647 8648static int wpa_driver_br_add_ip_neigh(void *priv, u8 version, 8649 const u8 *ipaddr, int prefixlen, 8650 const u8 *addr) 8651{ 8652#ifdef CONFIG_LIBNL3_ROUTE 8653 struct i802_bss *bss = priv; 8654 struct wpa_driver_nl80211_data *drv = bss->drv; 8655 struct rtnl_neigh *rn; 8656 struct nl_addr *nl_ipaddr = NULL; 8657 struct nl_addr *nl_lladdr = NULL; 8658 int family, addrsize; 8659 int res; 8660 8661 if (!ipaddr || prefixlen == 0 || !addr) 8662 return -EINVAL; 8663 8664 if (bss->br_ifindex == 0) { 8665 wpa_printf(MSG_DEBUG, 8666 "nl80211: bridge must be set before adding an ip neigh to it"); 8667 return -1; 8668 } 8669 8670 if (!drv->rtnl_sk) { 8671 wpa_printf(MSG_DEBUG, 8672 "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); 8673 return -1; 8674 } 8675 8676 if (version == 4) { 8677 family = AF_INET; 8678 addrsize = 4; 8679 } else if (version == 6) { 8680 family = AF_INET6; 8681 addrsize = 16; 8682 } else { 8683 return -EINVAL; 8684 } 8685 8686 rn = rtnl_neigh_alloc(); 8687 if (rn == NULL) 8688 return -ENOMEM; 8689 8690 /* set the destination ip address for neigh */ 8691 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); 8692 if (nl_ipaddr == NULL) { 8693 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); 8694 res = -ENOMEM; 8695 goto errout; 8696 } 8697 nl_addr_set_prefixlen(nl_ipaddr, prefixlen); 8698 res = rtnl_neigh_set_dst(rn, nl_ipaddr); 8699 if (res) { 8700 wpa_printf(MSG_DEBUG, 8701 "nl80211: neigh set destination addr failed"); 8702 goto errout; 8703 } 8704 8705 /* set the corresponding lladdr for neigh */ 8706 nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN); 8707 if (nl_lladdr == NULL) { 8708 wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed"); 8709 res = -ENOMEM; 8710 goto errout; 8711 } 8712 rtnl_neigh_set_lladdr(rn, nl_lladdr); 8713 8714 rtnl_neigh_set_ifindex(rn, bss->br_ifindex); 8715 rtnl_neigh_set_state(rn, NUD_PERMANENT); 8716 8717 res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE); 8718 if (res) { 8719 wpa_printf(MSG_DEBUG, 8720 "nl80211: Adding bridge ip neigh failed: %s", 8721 strerror(errno)); 8722 } 8723errout: 8724 if (nl_lladdr) 8725 nl_addr_put(nl_lladdr); 8726 if (nl_ipaddr) 8727 nl_addr_put(nl_ipaddr); 8728 if (rn) 8729 rtnl_neigh_put(rn); 8730 return res; 8731#else /* CONFIG_LIBNL3_ROUTE */ 8732 return -1; 8733#endif /* CONFIG_LIBNL3_ROUTE */ 8734} 8735 8736 8737static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version, 8738 const u8 *ipaddr) 8739{ 8740#ifdef CONFIG_LIBNL3_ROUTE 8741 struct i802_bss *bss = priv; 8742 struct wpa_driver_nl80211_data *drv = bss->drv; 8743 struct rtnl_neigh *rn; 8744 struct nl_addr *nl_ipaddr; 8745 int family, addrsize; 8746 int res; 8747 8748 if (!ipaddr) 8749 return -EINVAL; 8750 8751 if (version == 4) { 8752 family = AF_INET; 8753 addrsize = 4; 8754 } else if (version == 6) { 8755 family = AF_INET6; 8756 addrsize = 16; 8757 } else { 8758 return -EINVAL; 8759 } 8760 8761 if (bss->br_ifindex == 0) { 8762 wpa_printf(MSG_DEBUG, 8763 "nl80211: bridge must be set to delete an ip neigh"); 8764 return -1; 8765 } 8766 8767 if (!drv->rtnl_sk) { 8768 wpa_printf(MSG_DEBUG, 8769 "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); 8770 return -1; 8771 } 8772 8773 rn = rtnl_neigh_alloc(); 8774 if (rn == NULL) 8775 return -ENOMEM; 8776 8777 /* set the destination ip address for neigh */ 8778 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); 8779 if (nl_ipaddr == NULL) { 8780 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); 8781 res = -ENOMEM; 8782 goto errout; 8783 } 8784 res = rtnl_neigh_set_dst(rn, nl_ipaddr); 8785 if (res) { 8786 wpa_printf(MSG_DEBUG, 8787 "nl80211: neigh set destination addr failed"); 8788 goto errout; 8789 } 8790 8791 rtnl_neigh_set_ifindex(rn, bss->br_ifindex); 8792 8793 res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); 8794 if (res) { 8795 wpa_printf(MSG_DEBUG, 8796 "nl80211: Deleting bridge ip neigh failed: %s", 8797 strerror(errno)); 8798 } 8799errout: 8800 if (nl_ipaddr) 8801 nl_addr_put(nl_ipaddr); 8802 if (rn) 8803 rtnl_neigh_put(rn); 8804 return res; 8805#else /* CONFIG_LIBNL3_ROUTE */ 8806 return -1; 8807#endif /* CONFIG_LIBNL3_ROUTE */ 8808} 8809 8810 8811static int linux_write_system_file(const char *path, unsigned int val) 8812{ 8813 char buf[50]; 8814 int fd, len; 8815 8816 len = os_snprintf(buf, sizeof(buf), "%u\n", val); 8817 if (os_snprintf_error(sizeof(buf), len)) 8818 return -1; 8819 8820 fd = open(path, O_WRONLY); 8821 if (fd < 0) 8822 return -1; 8823 8824 if (write(fd, buf, len) < 0) { 8825 wpa_printf(MSG_DEBUG, 8826 "nl80211: Failed to write Linux system file: %s with the value of %d", 8827 path, val); 8828 close(fd); 8829 return -1; 8830 } 8831 close(fd); 8832 8833 return 0; 8834} 8835 8836 8837static const char * drv_br_port_attr_str(enum drv_br_port_attr attr) 8838{ 8839 switch (attr) { 8840 case DRV_BR_PORT_ATTR_PROXYARP: 8841 return "proxyarp_wifi"; 8842 case DRV_BR_PORT_ATTR_HAIRPIN_MODE: 8843 return "hairpin_mode"; 8844 } 8845 8846 return NULL; 8847} 8848 8849 8850static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr, 8851 unsigned int val) 8852{ 8853 struct i802_bss *bss = priv; 8854 char path[128]; 8855 const char *attr_txt; 8856 8857 attr_txt = drv_br_port_attr_str(attr); 8858 if (attr_txt == NULL) 8859 return -EINVAL; 8860 8861 os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s", 8862 bss->ifname, attr_txt); 8863 8864 if (linux_write_system_file(path, val)) 8865 return -1; 8866 8867 return 0; 8868} 8869 8870 8871static const char * drv_br_net_param_str(enum drv_br_net_param param) 8872{ 8873 switch (param) { 8874 case DRV_BR_NET_PARAM_GARP_ACCEPT: 8875 return "arp_accept"; 8876 default: 8877 return NULL; 8878 } 8879} 8880 8881 8882static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param, 8883 unsigned int val) 8884{ 8885 struct i802_bss *bss = priv; 8886 char path[128]; 8887 const char *param_txt; 8888 int ip_version = 4; 8889 8890 if (param == DRV_BR_MULTICAST_SNOOPING) { 8891 os_snprintf(path, sizeof(path), 8892 "/sys/devices/virtual/net/%s/bridge/multicast_snooping", 8893 bss->brname); 8894 goto set_val; 8895 } 8896 8897 param_txt = drv_br_net_param_str(param); 8898 if (param_txt == NULL) 8899 return -EINVAL; 8900 8901 switch (param) { 8902 case DRV_BR_NET_PARAM_GARP_ACCEPT: 8903 ip_version = 4; 8904 break; 8905 default: 8906 return -EINVAL; 8907 } 8908 8909 os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s", 8910 ip_version, bss->brname, param_txt); 8911 8912set_val: 8913 if (linux_write_system_file(path, val)) 8914 return -1; 8915 8916 return 0; 8917} 8918 8919 8920#ifdef CONFIG_DRIVER_NL80211_QCA 8921 8922static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode) 8923{ 8924 switch (hw_mode) { 8925 case HOSTAPD_MODE_IEEE80211B: 8926 return QCA_ACS_MODE_IEEE80211B; 8927 case HOSTAPD_MODE_IEEE80211G: 8928 return QCA_ACS_MODE_IEEE80211G; 8929 case HOSTAPD_MODE_IEEE80211A: 8930 return QCA_ACS_MODE_IEEE80211A; 8931 case HOSTAPD_MODE_IEEE80211AD: 8932 return QCA_ACS_MODE_IEEE80211AD; 8933 case HOSTAPD_MODE_IEEE80211ANY: 8934 return QCA_ACS_MODE_IEEE80211ANY; 8935 default: 8936 return -1; 8937 } 8938} 8939 8940 8941static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list) 8942{ 8943 int i, len, ret; 8944 u32 *freqs; 8945 8946 if (!freq_list) 8947 return 0; 8948 len = int_array_len(freq_list); 8949 freqs = os_malloc(sizeof(u32) * len); 8950 if (!freqs) 8951 return -1; 8952 for (i = 0; i < len; i++) 8953 freqs[i] = freq_list[i]; 8954 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST, 8955 sizeof(u32) * len, freqs); 8956 os_free(freqs); 8957 return ret; 8958} 8959 8960 8961static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params) 8962{ 8963 struct i802_bss *bss = priv; 8964 struct wpa_driver_nl80211_data *drv = bss->drv; 8965 struct nl_msg *msg; 8966 struct nlattr *data; 8967 int ret; 8968 int mode; 8969 8970 mode = hw_mode_to_qca_acs(params->hw_mode); 8971 if (mode < 0) 8972 return -1; 8973 8974 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 8975 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 8976 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 8977 QCA_NL80211_VENDOR_SUBCMD_DO_ACS) || 8978 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 8979 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) || 8980 (params->ht_enabled && 8981 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) || 8982 (params->ht40_enabled && 8983 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) || 8984 (params->vht_enabled && 8985 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) || 8986 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH, 8987 params->ch_width) || 8988 (params->ch_list_len && 8989 nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, params->ch_list_len, 8990 params->ch_list)) || 8991 add_acs_freq_list(msg, params->freq_list)) { 8992 nlmsg_free(msg); 8993 return -ENOBUFS; 8994 } 8995 nla_nest_end(msg, data); 8996 8997 wpa_printf(MSG_DEBUG, 8998 "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d CH_LIST_LEN: %u", 8999 params->hw_mode, params->ht_enabled, params->ht40_enabled, 9000 params->vht_enabled, params->ch_width, params->ch_list_len); 9001 9002 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9003 if (ret) { 9004 wpa_printf(MSG_DEBUG, 9005 "nl80211: Failed to invoke driver ACS function: %s", 9006 strerror(errno)); 9007 } 9008 return ret; 9009} 9010 9011 9012static int nl80211_set_band(void *priv, enum set_band band) 9013{ 9014 struct i802_bss *bss = priv; 9015 struct wpa_driver_nl80211_data *drv = bss->drv; 9016 struct nl_msg *msg; 9017 struct nlattr *data; 9018 int ret; 9019 enum qca_set_band qca_band; 9020 9021 if (!drv->setband_vendor_cmd_avail) 9022 return -1; 9023 9024 switch (band) { 9025 case WPA_SETBAND_AUTO: 9026 qca_band = QCA_SETBAND_AUTO; 9027 break; 9028 case WPA_SETBAND_5G: 9029 qca_band = QCA_SETBAND_5G; 9030 break; 9031 case WPA_SETBAND_2G: 9032 qca_band = QCA_SETBAND_2G; 9033 break; 9034 default: 9035 return -1; 9036 } 9037 9038 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9039 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9040 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9041 QCA_NL80211_VENDOR_SUBCMD_SETBAND) || 9042 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9043 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band)) { 9044 nlmsg_free(msg); 9045 return -ENOBUFS; 9046 } 9047 nla_nest_end(msg, data); 9048 9049 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9050 if (ret) { 9051 wpa_printf(MSG_DEBUG, 9052 "nl80211: Driver setband function failed: %s", 9053 strerror(errno)); 9054 } 9055 return ret; 9056} 9057 9058 9059struct nl80211_pcl { 9060 unsigned int num; 9061 unsigned int *freq_list; 9062}; 9063 9064static int preferred_freq_info_handler(struct nl_msg *msg, void *arg) 9065{ 9066 struct nlattr *tb[NL80211_ATTR_MAX + 1]; 9067 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 9068 struct nl80211_pcl *param = arg; 9069 struct nlattr *nl_vend, *attr; 9070 enum qca_iface_type iface_type; 9071 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; 9072 unsigned int num, max_num; 9073 u32 *freqs; 9074 9075 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 9076 genlmsg_attrlen(gnlh, 0), NULL); 9077 9078 nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; 9079 if (!nl_vend) 9080 return NL_SKIP; 9081 9082 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, 9083 nla_data(nl_vend), nla_len(nl_vend), NULL); 9084 9085 attr = tb_vendor[ 9086 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE]; 9087 if (!attr) { 9088 wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found"); 9089 param->num = 0; 9090 return NL_SKIP; 9091 } 9092 9093 iface_type = (enum qca_iface_type) nla_get_u32(attr); 9094 wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d", 9095 iface_type); 9096 9097 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST]; 9098 if (!attr) { 9099 wpa_printf(MSG_ERROR, 9100 "nl80211: preferred_freq_list couldn't be found"); 9101 param->num = 0; 9102 return NL_SKIP; 9103 } 9104 9105 /* 9106 * param->num has the maximum number of entries for which there 9107 * is room in the freq_list provided by the caller. 9108 */ 9109 freqs = nla_data(attr); 9110 max_num = nla_len(attr) / sizeof(u32); 9111 if (max_num > param->num) 9112 max_num = param->num; 9113 for (num = 0; num < max_num; num++) 9114 param->freq_list[num] = freqs[num]; 9115 param->num = num; 9116 9117 return NL_SKIP; 9118} 9119 9120 9121static int nl80211_get_pref_freq_list(void *priv, 9122 enum wpa_driver_if_type if_type, 9123 unsigned int *num, 9124 unsigned int *freq_list) 9125{ 9126 struct i802_bss *bss = priv; 9127 struct wpa_driver_nl80211_data *drv = bss->drv; 9128 struct nl_msg *msg; 9129 int ret; 9130 unsigned int i; 9131 struct nlattr *params; 9132 struct nl80211_pcl param; 9133 enum qca_iface_type iface_type; 9134 9135 if (!drv->get_pref_freq_list) 9136 return -1; 9137 9138 switch (if_type) { 9139 case WPA_IF_STATION: 9140 iface_type = QCA_IFACE_TYPE_STA; 9141 break; 9142 case WPA_IF_AP_BSS: 9143 iface_type = QCA_IFACE_TYPE_AP; 9144 break; 9145 case WPA_IF_P2P_GO: 9146 iface_type = QCA_IFACE_TYPE_P2P_GO; 9147 break; 9148 case WPA_IF_P2P_CLIENT: 9149 iface_type = QCA_IFACE_TYPE_P2P_CLIENT; 9150 break; 9151 case WPA_IF_IBSS: 9152 iface_type = QCA_IFACE_TYPE_IBSS; 9153 break; 9154 case WPA_IF_TDLS: 9155 iface_type = QCA_IFACE_TYPE_TDLS; 9156 break; 9157 default: 9158 return -1; 9159 } 9160 9161 param.num = *num; 9162 param.freq_list = freq_list; 9163 9164 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9165 nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) || 9166 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9167 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9168 QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) || 9169 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9170 nla_put_u32(msg, 9171 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE, 9172 iface_type)) { 9173 wpa_printf(MSG_ERROR, 9174 "%s: err in adding vendor_cmd and vendor_data", 9175 __func__); 9176 nlmsg_free(msg); 9177 return -1; 9178 } 9179 nla_nest_end(msg, params); 9180 9181 os_memset(freq_list, 0, *num * sizeof(freq_list[0])); 9182 ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, ¶m); 9183 if (ret) { 9184 wpa_printf(MSG_ERROR, 9185 "%s: err in send_and_recv_msgs", __func__); 9186 return ret; 9187 } 9188 9189 *num = param.num; 9190 9191 for (i = 0; i < *num; i++) { 9192 wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d", 9193 i, freq_list[i]); 9194 } 9195 9196 return 0; 9197} 9198 9199 9200static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq) 9201{ 9202 struct i802_bss *bss = priv; 9203 struct wpa_driver_nl80211_data *drv = bss->drv; 9204 struct nl_msg *msg; 9205 int ret; 9206 struct nlattr *params; 9207 9208 if (!drv->set_prob_oper_freq) 9209 return -1; 9210 9211 wpa_printf(MSG_DEBUG, 9212 "nl80211: Set P2P probable operating freq %u for ifindex %d", 9213 freq, bss->ifindex); 9214 9215 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9216 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9217 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9218 QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) || 9219 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || 9220 nla_put_u32(msg, 9221 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE, 9222 QCA_IFACE_TYPE_P2P_CLIENT) || 9223 nla_put_u32(msg, 9224 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ, 9225 freq)) { 9226 wpa_printf(MSG_ERROR, 9227 "%s: err in adding vendor_cmd and vendor_data", 9228 __func__); 9229 nlmsg_free(msg); 9230 return -1; 9231 } 9232 nla_nest_end(msg, params); 9233 9234 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9235 msg = NULL; 9236 if (ret) { 9237 wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs", 9238 __func__); 9239 return ret; 9240 } 9241 nlmsg_free(msg); 9242 return 0; 9243} 9244 9245 9246static int nl80211_p2p_lo_start(void *priv, unsigned int freq, 9247 unsigned int period, unsigned int interval, 9248 unsigned int count, const u8 *device_types, 9249 size_t dev_types_len, 9250 const u8 *ies, size_t ies_len) 9251{ 9252 struct i802_bss *bss = priv; 9253 struct wpa_driver_nl80211_data *drv = bss->drv; 9254 struct nl_msg *msg; 9255 struct nlattr *container; 9256 int ret; 9257 9258 wpa_printf(MSG_DEBUG, 9259 "nl80211: Start P2P Listen offload: freq=%u, period=%u, interval=%u, count=%u", 9260 freq, period, interval, count); 9261 9262 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) 9263 return -1; 9264 9265 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9266 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9267 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9268 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START)) 9269 goto fail; 9270 9271 container = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); 9272 if (!container) 9273 goto fail; 9274 9275 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL, 9276 freq) || 9277 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD, 9278 period) || 9279 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL, 9280 interval) || 9281 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT, 9282 count) || 9283 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES, 9284 dev_types_len, device_types) || 9285 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE, 9286 ies_len, ies)) 9287 goto fail; 9288 9289 nla_nest_end(msg, container); 9290 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9291 msg = NULL; 9292 if (ret) { 9293 wpa_printf(MSG_DEBUG, 9294 "nl80211: Failed to send P2P Listen offload vendor command"); 9295 goto fail; 9296 } 9297 9298 return 0; 9299 9300fail: 9301 nlmsg_free(msg); 9302 return -1; 9303} 9304 9305 9306static int nl80211_p2p_lo_stop(void *priv) 9307{ 9308 struct i802_bss *bss = priv; 9309 struct wpa_driver_nl80211_data *drv = bss->drv; 9310 struct nl_msg *msg; 9311 9312 wpa_printf(MSG_DEBUG, "nl80211: Stop P2P Listen offload"); 9313 9314 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) 9315 return -1; 9316 9317 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9318 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9319 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9320 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP)) { 9321 nlmsg_free(msg); 9322 return -1; 9323 } 9324 9325 return send_and_recv_msgs(drv, msg, NULL, NULL); 9326} 9327 9328 9329static int nl80211_set_tdls_mode(void *priv, int tdls_external_control) 9330{ 9331 struct i802_bss *bss = priv; 9332 struct wpa_driver_nl80211_data *drv = bss->drv; 9333 struct nl_msg *msg; 9334 struct nlattr *params; 9335 int ret; 9336 u32 tdls_mode; 9337 9338 wpa_printf(MSG_DEBUG, 9339 "nl80211: Set TDKS mode: tdls_external_control=%d", 9340 tdls_external_control); 9341 9342 if (tdls_external_control == 1) 9343 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_IMPLICIT | 9344 QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL; 9345 else 9346 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXPLICIT; 9347 9348 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || 9349 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || 9350 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, 9351 QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS)) 9352 goto fail; 9353 9354 params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); 9355 if (!params) 9356 goto fail; 9357 9358 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TDLS_CONFIG_TRIGGER_MODE, 9359 tdls_mode)) 9360 goto fail; 9361 9362 nla_nest_end(msg, params); 9363 9364 ret = send_and_recv_msgs(drv, msg, NULL, NULL); 9365 msg = NULL; 9366 if (ret) { 9367 wpa_printf(MSG_ERROR, 9368 "nl80211: Set TDLS mode failed: ret=%d (%s)", 9369 ret, strerror(-ret)); 9370 goto fail; 9371 } 9372 return 0; 9373fail: 9374 nlmsg_free(msg); 9375 return -1; 9376} 9377 9378#endif /* CONFIG_DRIVER_NL80211_QCA */ 9379 9380 9381static int nl80211_write_to_file(const char *name, unsigned int val) 9382{ 9383 int fd, len; 9384 char tmp[128]; 9385 9386 fd = open(name, O_RDWR); 9387 if (fd < 0) { 9388 wpa_printf(MSG_ERROR, "nl80211: Failed to open %s: %s", 9389 name, strerror(errno)); 9390 return fd; 9391 } 9392 9393 len = os_snprintf(tmp, sizeof(tmp), "%u\n", val); 9394 len = write(fd, tmp, len); 9395 if (len < 0) 9396 wpa_printf(MSG_ERROR, "nl80211: Failed to write to %s: %s", 9397 name, strerror(errno)); 9398 close(fd); 9399 9400 return 0; 9401} 9402 9403 9404static int nl80211_configure_data_frame_filters(void *priv, u32 filter_flags) 9405{ 9406 struct i802_bss *bss = priv; 9407 char path[128]; 9408 int ret; 9409 9410 wpa_printf(MSG_DEBUG, "nl80211: Data frame filter flags=0x%x", 9411 filter_flags); 9412 9413 /* Configure filtering of unicast frame encrypted using GTK */ 9414 ret = os_snprintf(path, sizeof(path), 9415 "/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast", 9416 bss->ifname); 9417 if (os_snprintf_error(sizeof(path), ret)) 9418 return -1; 9419 9420 ret = nl80211_write_to_file(path, 9421 !!(filter_flags & 9422 WPA_DATA_FRAME_FILTER_FLAG_GTK)); 9423 if (ret) { 9424 wpa_printf(MSG_ERROR, 9425 "nl80211: Failed to set IPv4 unicast in multicast filter"); 9426 return ret; 9427 } 9428 9429 os_snprintf(path, sizeof(path), 9430 "/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast", 9431 bss->ifname); 9432 ret = nl80211_write_to_file(path, 9433 !!(filter_flags & 9434 WPA_DATA_FRAME_FILTER_FLAG_GTK)); 9435 9436 if (ret) { 9437 wpa_printf(MSG_ERROR, 9438 "nl80211: Failed to set IPv6 unicast in multicast filter"); 9439 return ret; 9440 } 9441 9442 /* Configure filtering of unicast frame encrypted using GTK */ 9443 os_snprintf(path, sizeof(path), 9444 "/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp", 9445 bss->ifname); 9446 ret = nl80211_write_to_file(path, 9447 !!(filter_flags & 9448 WPA_DATA_FRAME_FILTER_FLAG_ARP)); 9449 if (ret) { 9450 wpa_printf(MSG_ERROR, 9451 "nl80211: Failed set gratuitous ARP filter"); 9452 return ret; 9453 } 9454 9455 /* Configure filtering of IPv6 NA frames */ 9456 os_snprintf(path, sizeof(path), 9457 "/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na", 9458 bss->ifname); 9459 ret = nl80211_write_to_file(path, 9460 !!(filter_flags & 9461 WPA_DATA_FRAME_FILTER_FLAG_NA)); 9462 if (ret) { 9463 wpa_printf(MSG_ERROR, 9464 "nl80211: Failed to set unsolicited NA filter"); 9465 return ret; 9466 } 9467 9468 return 0; 9469} 9470 9471 9472static int nl80211_get_ext_capab(void *priv, enum wpa_driver_if_type type, 9473 const u8 **ext_capa, const u8 **ext_capa_mask, 9474 unsigned int *ext_capa_len) 9475{ 9476 struct i802_bss *bss = priv; 9477 struct wpa_driver_nl80211_data *drv = bss->drv; 9478 enum nl80211_iftype nlmode; 9479 unsigned int i; 9480 9481 if (!ext_capa || !ext_capa_mask || !ext_capa_len) 9482 return -1; 9483 9484 nlmode = wpa_driver_nl80211_if_type(type); 9485 9486 /* By default, use the per-radio values */ 9487 *ext_capa = drv->extended_capa; 9488 *ext_capa_mask = drv->extended_capa_mask; 9489 *ext_capa_len = drv->extended_capa_len; 9490 9491 /* Replace the default value if a per-interface type value exists */ 9492 for (i = 0; i < drv->num_iface_ext_capa; i++) { 9493 if (nlmode == drv->iface_ext_capa[i].iftype) { 9494 *ext_capa = drv->iface_ext_capa[i].ext_capa; 9495 *ext_capa_mask = drv->iface_ext_capa[i].ext_capa_mask; 9496 *ext_capa_len = drv->iface_ext_capa[i].ext_capa_len; 9497 break; 9498 } 9499 } 9500 9501 return 0; 9502} 9503 9504 9505const struct wpa_driver_ops wpa_driver_nl80211_ops = { 9506 .name = "nl80211", 9507 .desc = "Linux nl80211/cfg80211", 9508 .get_bssid = wpa_driver_nl80211_get_bssid, 9509 .get_ssid = wpa_driver_nl80211_get_ssid, 9510 .set_key = driver_nl80211_set_key, 9511 .scan2 = driver_nl80211_scan2, 9512 .sched_scan = wpa_driver_nl80211_sched_scan, 9513 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, 9514 .get_scan_results2 = wpa_driver_nl80211_get_scan_results, 9515 .abort_scan = wpa_driver_nl80211_abort_scan, 9516 .deauthenticate = driver_nl80211_deauthenticate, 9517 .authenticate = driver_nl80211_authenticate, 9518 .associate = wpa_driver_nl80211_associate, 9519 .global_init = nl80211_global_init, 9520 .global_deinit = nl80211_global_deinit, 9521 .init2 = wpa_driver_nl80211_init, 9522 .deinit = driver_nl80211_deinit, 9523 .get_capa = wpa_driver_nl80211_get_capa, 9524 .set_operstate = wpa_driver_nl80211_set_operstate, 9525 .set_supp_port = wpa_driver_nl80211_set_supp_port, 9526 .set_country = wpa_driver_nl80211_set_country, 9527 .get_country = wpa_driver_nl80211_get_country, 9528 .set_ap = wpa_driver_nl80211_set_ap, 9529 .set_acl = wpa_driver_nl80211_set_acl, 9530 .if_add = wpa_driver_nl80211_if_add, 9531 .if_remove = driver_nl80211_if_remove, 9532 .send_mlme = driver_nl80211_send_mlme, 9533 .get_hw_feature_data = nl80211_get_hw_feature_data, 9534 .sta_add = wpa_driver_nl80211_sta_add, 9535 .sta_remove = driver_nl80211_sta_remove, 9536 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, 9537 .sta_set_flags = wpa_driver_nl80211_sta_set_flags, 9538 .hapd_init = i802_init, 9539 .hapd_deinit = i802_deinit, 9540 .set_wds_sta = i802_set_wds_sta, 9541 .get_seqnum = i802_get_seqnum, 9542 .flush = i802_flush, 9543 .get_inact_sec = i802_get_inact_sec, 9544 .sta_clear_stats = i802_sta_clear_stats, 9545 .set_rts = i802_set_rts, 9546 .set_frag = i802_set_frag, 9547 .set_tx_queue_params = i802_set_tx_queue_params, 9548 .set_sta_vlan = driver_nl80211_set_sta_vlan, 9549 .sta_deauth = i802_sta_deauth, 9550 .sta_disassoc = i802_sta_disassoc, 9551 .read_sta_data = driver_nl80211_read_sta_data, 9552 .set_freq = i802_set_freq, 9553 .send_action = driver_nl80211_send_action, 9554 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, 9555 .remain_on_channel = wpa_driver_nl80211_remain_on_channel, 9556 .cancel_remain_on_channel = 9557 wpa_driver_nl80211_cancel_remain_on_channel, 9558 .probe_req_report = driver_nl80211_probe_req_report, 9559 .deinit_ap = wpa_driver_nl80211_deinit_ap, 9560 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, 9561 .resume = wpa_driver_nl80211_resume, 9562 .signal_monitor = nl80211_signal_monitor, 9563 .signal_poll = nl80211_signal_poll, 9564 .send_frame = nl80211_send_frame, 9565 .set_param = nl80211_set_param, 9566 .get_radio_name = nl80211_get_radio_name, 9567 .add_pmkid = nl80211_add_pmkid, 9568 .remove_pmkid = nl80211_remove_pmkid, 9569 .flush_pmkid = nl80211_flush_pmkid, 9570 .set_rekey_info = nl80211_set_rekey_info, 9571 .poll_client = nl80211_poll_client, 9572 .set_p2p_powersave = nl80211_set_p2p_powersave, 9573 .start_dfs_cac = nl80211_start_radar_detection, 9574 .stop_ap = wpa_driver_nl80211_stop_ap, 9575#ifdef CONFIG_TDLS 9576 .send_tdls_mgmt = nl80211_send_tdls_mgmt, 9577 .tdls_oper = nl80211_tdls_oper, 9578 .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch, 9579 .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch, 9580#endif /* CONFIG_TDLS */ 9581 .update_ft_ies = wpa_driver_nl80211_update_ft_ies, 9582 .get_mac_addr = wpa_driver_nl80211_get_macaddr, 9583 .get_survey = wpa_driver_nl80211_get_survey, 9584 .status = wpa_driver_nl80211_status, 9585 .switch_channel = nl80211_switch_channel, 9586#ifdef ANDROID_P2P 9587 .set_noa = wpa_driver_set_p2p_noa, 9588 .get_noa = wpa_driver_get_p2p_noa, 9589 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, 9590#endif /* ANDROID_P2P */ 9591#ifdef ANDROID 9592#ifndef ANDROID_LIB_STUB 9593 .driver_cmd = wpa_driver_nl80211_driver_cmd, 9594#endif /* !ANDROID_LIB_STUB */ 9595#endif /* ANDROID */ 9596 .vendor_cmd = nl80211_vendor_cmd, 9597 .set_qos_map = nl80211_set_qos_map, 9598 .set_wowlan = nl80211_set_wowlan, 9599 .set_mac_addr = nl80211_set_mac_addr, 9600#ifdef CONFIG_MESH 9601 .init_mesh = wpa_driver_nl80211_init_mesh, 9602 .join_mesh = wpa_driver_nl80211_join_mesh, 9603 .leave_mesh = wpa_driver_nl80211_leave_mesh, 9604#endif /* CONFIG_MESH */ 9605 .br_add_ip_neigh = wpa_driver_br_add_ip_neigh, 9606 .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh, 9607 .br_port_set_attr = wpa_driver_br_port_set_attr, 9608 .br_set_net_param = wpa_driver_br_set_net_param, 9609 .add_tx_ts = nl80211_add_ts, 9610 .del_tx_ts = nl80211_del_ts, 9611 .get_ifindex = nl80211_get_ifindex, 9612#ifdef CONFIG_DRIVER_NL80211_QCA 9613 .roaming = nl80211_roaming, 9614 .do_acs = wpa_driver_do_acs, 9615 .set_band = nl80211_set_band, 9616 .get_pref_freq_list = nl80211_get_pref_freq_list, 9617 .set_prob_oper_freq = nl80211_set_prob_oper_freq, 9618 .p2p_lo_start = nl80211_p2p_lo_start, 9619 .p2p_lo_stop = nl80211_p2p_lo_stop, 9620 .set_default_scan_ies = nl80211_set_default_scan_ies, 9621 .set_tdls_mode = nl80211_set_tdls_mode, 9622#endif /* CONFIG_DRIVER_NL80211_QCA */ 9623 .configure_data_frame_filters = nl80211_configure_data_frame_filters, 9624 .get_ext_capab = nl80211_get_ext_capab, 9625}; 9626