/* * Driver interaction with Linux nl80211/cfg80211 * Copyright (c) 2002-2015, Jouni Malinen * Copyright (c) 2003-2004, Instant802 Networks, Inc. * Copyright (c) 2005-2006, Devicescape Software, Inc. * Copyright (c) 2007, Johannes Berg * Copyright (c) 2009-2010, Atheros Communications * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #include "includes.h" #include #include #include #include #include #ifdef CONFIG_LIBNL3_ROUTE #include #endif /* CONFIG_LIBNL3_ROUTE */ #include #include #include #include "common.h" #include "eloop.h" #include "common/qca-vendor.h" #include "common/qca-vendor-attr.h" #include "common/brcm_vendor.h" #include "common/ieee802_11_defs.h" #include "common/ieee802_11_common.h" #include "common/wpa_common.h" #include "netlink.h" #include "linux_defines.h" #include "linux_ioctl.h" #include "radiotap.h" #include "radiotap_iter.h" #include "rfkill.h" #include "driver_nl80211.h" #ifndef NETLINK_CAP_ACK #define NETLINK_CAP_ACK 10 #endif /* NETLINK_CAP_ACK */ /* support for extack if compilation headers are too old */ #ifndef NETLINK_EXT_ACK #define NETLINK_EXT_ACK 11 enum nlmsgerr_attrs { NLMSGERR_ATTR_UNUSED, NLMSGERR_ATTR_MSG, NLMSGERR_ATTR_OFFS, NLMSGERR_ATTR_COOKIE, __NLMSGERR_ATTR_MAX, NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1 }; #endif #ifndef NLM_F_CAPPED #define NLM_F_CAPPED 0x100 #endif #ifndef NLM_F_ACK_TLVS #define NLM_F_ACK_TLVS 0x200 #endif #ifndef SOL_NETLINK #define SOL_NETLINK 270 #endif #ifdef ANDROID /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ #undef nl_socket_set_nonblocking #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) #endif /* ANDROID */ static struct nl_sock * nl_create_handle(struct nl_cb *cb, const char *dbg) { struct nl_sock *handle; handle = nl_socket_alloc_cb(cb); if (handle == NULL) { wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " "callbacks (%s)", dbg); return NULL; } if (genl_connect(handle)) { wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " "netlink (%s)", dbg); nl_socket_free(handle); return NULL; } return handle; } static void nl_destroy_handles(struct nl_sock **handle) { if (*handle == NULL) return; nl_socket_free(*handle); *handle = NULL; } #if __WORDSIZE == 64 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL #else #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL #endif static void nl80211_register_eloop_read(struct nl_sock **handle, eloop_sock_handler handler, void *eloop_data, int persist) { /* * libnl uses a pretty small buffer (32 kB that gets converted to 64 kB) * by default. It is possible to hit that limit in some cases where * operations are blocked, e.g., with a burst of Deauthentication frames * to hostapd and STA entry deletion. Try to increase the buffer to make * this less likely to occur. */ int err; err = nl_socket_set_buffer_size(*handle, 262144, 0); if (err < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not set nl_socket RX buffer size: %s", nl_geterror(err)); /* continue anyway with the default (smaller) buffer */ } nl_socket_set_nonblocking(*handle); eloop_register_read_sock(nl_socket_get_fd(*handle), handler, eloop_data, *handle); if (!persist) *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); } static void nl80211_destroy_eloop_handle(struct nl_sock **handle, int persist) { if (!persist) *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); eloop_unregister_read_sock(nl_socket_get_fd(*handle)); nl_destroy_handles(handle); } static void nl80211_global_deinit(void *priv); static void nl80211_check_global(struct nl80211_global *global); static void wpa_driver_nl80211_deinit(struct i802_bss *bss); static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, struct hostapd_freq_params *freq); static int wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, const u8 *set_addr, int first, const char *driver_params); static int nl80211_send_frame_cmd(struct i802_bss *bss, unsigned int freq, unsigned int wait, const u8 *buf, size_t buf_len, int save_cookie, int no_cck, int no_ack, int offchanok, const u16 *csa_offs, size_t csa_offs_len); static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report); #define IFIDX_ANY -1 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason); static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason); static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason); static int nl80211_set_channel(struct i802_bss *bss, struct hostapd_freq_params *freq, int set_chan); static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, int ifindex, int disabled); static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, int reset_mode); static int i802_set_iface_flags(struct i802_bss *bss, int up); static int nl80211_set_param(void *priv, const char *param); #ifdef CONFIG_MESH static int nl80211_put_mesh_config(struct nl_msg *msg, struct wpa_driver_mesh_bss_params *params); #endif /* CONFIG_MESH */ static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, u16 reason); /* Converts nl80211_chan_width to a common format */ enum chan_width convert2width(int width) { switch (width) { case NL80211_CHAN_WIDTH_20_NOHT: return CHAN_WIDTH_20_NOHT; case NL80211_CHAN_WIDTH_20: return CHAN_WIDTH_20; case NL80211_CHAN_WIDTH_40: return CHAN_WIDTH_40; case NL80211_CHAN_WIDTH_80: return CHAN_WIDTH_80; case NL80211_CHAN_WIDTH_80P80: return CHAN_WIDTH_80P80; case NL80211_CHAN_WIDTH_160: return CHAN_WIDTH_160; } return CHAN_WIDTH_UNKNOWN; } int is_ap_interface(enum nl80211_iftype nlmode) { return nlmode == NL80211_IFTYPE_AP || nlmode == NL80211_IFTYPE_P2P_GO; } int is_sta_interface(enum nl80211_iftype nlmode) { return nlmode == NL80211_IFTYPE_STATION || nlmode == NL80211_IFTYPE_P2P_CLIENT; } static int is_p2p_net_interface(enum nl80211_iftype nlmode) { return nlmode == NL80211_IFTYPE_P2P_CLIENT || nlmode == NL80211_IFTYPE_P2P_GO; } struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv, int ifindex) { struct i802_bss *bss; for (bss = drv->first_bss; bss; bss = bss->next) { if (bss->ifindex == ifindex) return bss; } return NULL; } static int is_mesh_interface(enum nl80211_iftype nlmode) { return nlmode == NL80211_IFTYPE_MESH_POINT; } void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) { if (drv->associated) os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); drv->associated = 0; os_memset(drv->bssid, 0, ETH_ALEN); drv->first_bss->freq = 0; } /* nl80211 code */ static int ack_handler(struct nl_msg *msg, void *arg) { int *err = arg; *err = 0; return NL_STOP; } struct nl80211_ack_ext_arg { int *err; void *ext_data; }; static int ack_handler_cookie(struct nl_msg *msg, void *arg) { struct nl80211_ack_ext_arg *ext_arg = arg; struct nlattr *tb[NLMSGERR_ATTR_MAX + 1]; u64 *cookie = ext_arg->ext_data; struct nlattr *attrs; size_t ack_len, attr_len; *ext_arg->err = 0; ack_len = sizeof(struct nlmsghdr) + sizeof(int) + sizeof(struct nlmsghdr); attrs = (struct nlattr *) ((u8 *) nlmsg_data(nlmsg_hdr(msg)) + sizeof(struct nlmsghdr) + sizeof(int)); if (nlmsg_hdr(msg)->nlmsg_len <= ack_len) return NL_STOP; attr_len = nlmsg_hdr(msg)->nlmsg_len - ack_len; if(!(nlmsg_hdr(msg)->nlmsg_flags & NLM_F_ACK_TLVS)) return NL_STOP; nla_parse(tb, NLMSGERR_ATTR_MAX, attrs, attr_len, NULL); if (tb[NLMSGERR_ATTR_COOKIE]) *cookie = nla_get_u64(tb[NLMSGERR_ATTR_COOKIE]); return NL_STOP; } static int finish_handler(struct nl_msg *msg, void *arg) { int *ret = arg; *ret = 0; return NL_SKIP; } static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg) { struct nlmsghdr *nlh = (struct nlmsghdr *) err - 1; int len = nlh->nlmsg_len; struct nlattr *attrs; struct nlattr *tb[NLMSGERR_ATTR_MAX + 1]; int *ret = arg; int ack_len = sizeof(*nlh) + sizeof(int) + sizeof(*nlh); *ret = err->error; if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS)) return NL_SKIP; if (!(nlh->nlmsg_flags & NLM_F_CAPPED)) ack_len += err->msg.nlmsg_len - sizeof(*nlh); if (len <= ack_len) return NL_STOP; attrs = (void *) ((unsigned char *) nlh + ack_len); len -= ack_len; nla_parse(tb, NLMSGERR_ATTR_MAX, attrs, len, NULL); if (tb[NLMSGERR_ATTR_MSG]) { len = strnlen((char *) nla_data(tb[NLMSGERR_ATTR_MSG]), nla_len(tb[NLMSGERR_ATTR_MSG])); wpa_printf(MSG_ERROR, "nl80211: kernel reports: %*s", len, (char *) nla_data(tb[NLMSGERR_ATTR_MSG])); } return NL_SKIP; } static int no_seq_check(struct nl_msg *msg, void *arg) { return NL_OK; } static void nl80211_nlmsg_clear(struct nl_msg *msg) { /* * Clear nlmsg data, e.g., to make sure key material is not left in * heap memory for unnecessarily long time. */ if (msg) { struct nlmsghdr *hdr = nlmsg_hdr(msg); void *data = nlmsg_data(hdr); /* * This would use nlmsg_datalen() or the older nlmsg_len() if * only libnl were to maintain a stable API.. Neither will work * with all released versions, so just calculate the length * here. */ int len = hdr->nlmsg_len - NLMSG_HDRLEN; os_memset(data, 0, len); } } static int send_and_recv(struct nl80211_global *global, struct nl_sock *nl_handle, struct nl_msg *msg, int (*valid_handler)(struct nl_msg *, void *), void *valid_data, int (*ack_handler_custom)(struct nl_msg *, void *), void *ack_data) { struct nl_cb *cb; int err = -ENOMEM, opt; if (!msg) return -ENOMEM; cb = nl_cb_clone(global->nl_cb); if (!cb) goto out; /* try to set NETLINK_EXT_ACK to 1, ignoring errors */ opt = 1; setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK, NETLINK_EXT_ACK, &opt, sizeof(opt)); /* try to set NETLINK_CAP_ACK to 1, ignoring errors */ opt = 1; setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK, NETLINK_CAP_ACK, &opt, sizeof(opt)); err = nl_send_auto_complete(nl_handle, msg); if (err < 0) { wpa_printf(MSG_INFO, "nl80211: nl_send_auto_complete() failed: %s", nl_geterror(err)); /* Need to convert libnl error code to an errno value. For now, * just hardcode this to EBADF; the real error reason is shown * in that error print above. */ err = -EBADF; goto out; } err = 1; nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); if (ack_handler_custom) { struct nl80211_ack_ext_arg *ext_arg = ack_data; ext_arg->err = &err; nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler_custom, ack_data); } else { nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); } if (valid_handler) nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, valid_handler, valid_data); while (err > 0) { int res = nl_recvmsgs(nl_handle, cb); if (res == -NLE_DUMP_INTR) { /* Most likely one of the nl80211 dump routines hit a * case where internal results changed while the dump * was being sent. The most common known case for this * is scan results fetching while associated were every * received Beacon frame from the AP may end up * incrementing bss_generation. This * NL80211_CMD_GET_SCAN case tries again in the caller; * other cases (of which there are no known common ones) * will stop and return an error. */ wpa_printf(MSG_DEBUG, "nl80211: %s; convert to -EAGAIN", nl_geterror(res)); err = -EAGAIN; } else if (res < 0) { wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d (%s)", __func__, res, nl_geterror(res)); } } out: nl_cb_put(cb); /* Always clear the message as it can potentially contain keys */ nl80211_nlmsg_clear(msg); nlmsg_free(msg); return err; } int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg, int (*valid_handler)(struct nl_msg *, void *), void *valid_data, int (*ack_handler_custom)(struct nl_msg *, void *), void *ack_data) { return send_and_recv(drv->global, drv->global->nl, msg, valid_handler, valid_data, ack_handler_custom, ack_data); } /* Use this method to mark that it is necessary to own the connection/interface * for this operation. * handle may be set to NULL, to get the same behavior as send_and_recv_msgs(). * set_owner can be used to mark this socket for receiving control port frames. */ static int send_and_recv_msgs_owner(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg, struct nl_sock *handle, int set_owner, int (*valid_handler)(struct nl_msg *, void *), void *valid_data, int (*ack_handler_custom)(struct nl_msg *, void *), void *ack_data) { if (!msg) return -ENOMEM; /* Control port over nl80211 needs the flags and attributes below. * * The Linux kernel has initial checks for them (in nl80211.c) like: * validate_pae_over_nl80211(...) * or final checks like: * dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid * * Final operations (e.g., disassociate) don't need to set these * attributes, but they have to be performed on the socket, which has * the connection owner property set in the kernel. */ if ((drv->capa.flags2 & WPA_DRIVER_FLAGS2_CONTROL_PORT_RX) && handle && set_owner && (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_OVER_NL80211) || nla_put_flag(msg, NL80211_ATTR_SOCKET_OWNER) || nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_PREAUTH))) return -1; return send_and_recv(drv->global, handle ? handle : drv->global->nl, msg, valid_handler, valid_data, ack_handler_custom, ack_data); } struct nl_sock * get_connect_handle(struct i802_bss *bss) { if ((bss->drv->capa.flags2 & WPA_DRIVER_FLAGS2_CONTROL_PORT_RX) || bss->use_nl_connect) return bss->nl_connect; return NULL; } struct family_data { const char *group; int id; }; static int family_handler(struct nl_msg *msg, void *arg) { struct family_data *res = arg; struct nlattr *tb[CTRL_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *mcgrp; int i; nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[CTRL_ATTR_MCAST_GROUPS]) return NL_SKIP; nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), nla_len(mcgrp), NULL); if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || !tb2[CTRL_ATTR_MCAST_GRP_ID] || os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), res->group, nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) continue; res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); break; }; return NL_SKIP; } static int nl_get_multicast_id(struct nl80211_global *global, const char *family, const char *group) { struct nl_msg *msg; int ret; struct family_data res = { group, -ENOENT }; msg = nlmsg_alloc(); if (!msg) return -ENOMEM; if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), 0, 0, CTRL_CMD_GETFAMILY, 0) || nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) { nlmsg_free(msg); return -1; } ret = send_and_recv(global, global->nl, msg, family_handler, &res, NULL, NULL); if (ret == 0) ret = res.id; return ret; } void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg, int flags, uint8_t cmd) { if (TEST_FAIL()) return NULL; return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, 0, flags, cmd, 0); } static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) { if (bss->wdev_id_set) return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id); return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); } struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd) { struct nl_msg *msg; msg = nlmsg_alloc(); if (!msg) return NULL; if (!nl80211_cmd(bss->drv, msg, flags, cmd) || nl80211_set_iface_id(msg, bss) < 0) { nlmsg_free(msg); return NULL; } return msg; } static struct nl_msg * nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex, int flags, uint8_t cmd) { struct nl_msg *msg; msg = nlmsg_alloc(); if (!msg) return NULL; if (!nl80211_cmd(drv, msg, flags, cmd) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) { nlmsg_free(msg); return NULL; } return msg; } struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags, uint8_t cmd) { return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd); } struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd) { return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd); } struct wiphy_idx_data { int wiphy_idx; enum nl80211_iftype nlmode; u8 *macaddr; u8 use_4addr; }; static int netdev_info_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct wiphy_idx_data *info = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (tb[NL80211_ATTR_WIPHY]) info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); if (tb[NL80211_ATTR_IFTYPE]) info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); if (tb[NL80211_ATTR_MAC] && info->macaddr) os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); if (tb[NL80211_ATTR_4ADDR]) info->use_4addr = nla_get_u8(tb[NL80211_ATTR_4ADDR]); return NL_SKIP; } int nl80211_get_wiphy_index(struct i802_bss *bss) { struct nl_msg *msg; struct wiphy_idx_data data = { .wiphy_idx = -1, .macaddr = NULL, }; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) return -1; if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data, NULL, NULL) == 0) return data.wiphy_idx; return -1; } static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) { struct nl_msg *msg; struct wiphy_idx_data data = { .nlmode = NL80211_IFTYPE_UNSPECIFIED, .macaddr = NULL, }; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) return NL80211_IFTYPE_UNSPECIFIED; if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data, NULL, NULL) == 0) return data.nlmode; return NL80211_IFTYPE_UNSPECIFIED; } static int nl80211_get_macaddr(struct i802_bss *bss) { struct nl_msg *msg; struct wiphy_idx_data data = { .macaddr = bss->addr, }; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE))) return -1; return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data, NULL, NULL); } static int nl80211_get_4addr(struct i802_bss *bss) { struct nl_msg *msg; struct wiphy_idx_data data = { .use_4addr = 0, }; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)) || send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data, NULL, NULL)) return -1; return data.use_4addr; } static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, struct nl80211_wiphy_data *w) { struct nl_msg *msg; int ret; msg = nlmsg_alloc(); if (!msg) return -1; if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) || nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) { nlmsg_free(msg); return -1; } ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " "failed: ret=%d (%s)", ret, strerror(-ret)); } return ret; } static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) { struct nl80211_wiphy_data *w = eloop_ctx; int res; wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); res = nl_recvmsgs(handle, w->nl_cb); if (res < 0) { wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", __func__, res); } } static int process_beacon_event(struct nl_msg *msg, void *arg) { struct nl80211_wiphy_data *w = arg; struct wpa_driver_nl80211_data *drv; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *tb[NL80211_ATTR_MAX + 1]; union wpa_event_data event; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (gnlh->cmd != NL80211_CMD_FRAME) { wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", gnlh->cmd); return NL_SKIP; } if (!tb[NL80211_ATTR_FRAME]) return NL_SKIP; dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, wiphy_list) { os_memset(&event, 0, sizeof(event)); event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); } return NL_SKIP; } static struct nl80211_wiphy_data * nl80211_get_wiphy_data_ap(struct i802_bss *bss) { static DEFINE_DL_LIST(nl80211_wiphys); struct nl80211_wiphy_data *w; int wiphy_idx, found = 0; struct i802_bss *tmp_bss; u8 channel; if (bss->wiphy_data != NULL) return bss->wiphy_data; wiphy_idx = nl80211_get_wiphy_index(bss); dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { if (w->wiphy_idx == wiphy_idx) goto add; } /* alloc new one */ w = os_zalloc(sizeof(*w)); if (w == NULL) return NULL; w->wiphy_idx = wiphy_idx; dl_list_init(&w->bsss); dl_list_init(&w->drvs); /* Beacon frames not supported in IEEE 802.11ad */ if (ieee80211_freq_to_chan(bss->freq, &channel) != HOSTAPD_MODE_IEEE80211AD) { w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); if (!w->nl_cb) { os_free(w); return NULL; } nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, w); w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, "wiphy beacons"); if (w->nl_beacons == NULL) { os_free(w); return NULL; } if (nl80211_register_beacons(bss->drv, w)) { nl_destroy_handles(&w->nl_beacons); os_free(w); return NULL; } nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w, 0); } dl_list_add(&nl80211_wiphys, &w->list); add: /* drv entry for this bss already there? */ dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { if (tmp_bss->drv == bss->drv) { found = 1; break; } } /* if not add it */ if (!found) dl_list_add(&w->drvs, &bss->drv->wiphy_list); dl_list_add(&w->bsss, &bss->wiphy_list); bss->wiphy_data = w; return w; } static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) { struct nl80211_wiphy_data *w = bss->wiphy_data; struct i802_bss *tmp_bss; int found = 0; if (w == NULL) return; bss->wiphy_data = NULL; dl_list_del(&bss->wiphy_list); /* still any for this drv present? */ dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { if (tmp_bss->drv == bss->drv) { found = 1; break; } } /* if not remove it */ if (!found) dl_list_del(&bss->drv->wiphy_list); if (!dl_list_empty(&w->bsss)) return; if (w->nl_beacons) nl80211_destroy_eloop_handle(&w->nl_beacons, 0); nl_cb_put(w->nl_cb); dl_list_del(&w->list); os_free(w); } static unsigned int nl80211_get_ifindex(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; return drv->ifindex; } static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (!drv->associated) return -1; os_memcpy(bssid, drv->bssid, ETH_ALEN); return 0; } static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (!drv->associated) return -1; os_memcpy(ssid, drv->ssid, drv->ssid_len); return drv->ssid_len; } static void wpa_driver_nl80211_event_newlink( struct nl80211_global *global, struct wpa_driver_nl80211_data *drv, int ifindex, const char *ifname) { union wpa_event_data event; if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) { if (if_nametoindex(drv->first_bss->ifname) == 0) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", drv->first_bss->ifname); return; } if (!drv->if_removed) return; wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", drv->first_bss->ifname); drv->if_removed = 0; } os_memset(&event, 0, sizeof(event)); event.interface_status.ifindex = ifindex; os_strlcpy(event.interface_status.ifname, ifname, sizeof(event.interface_status.ifname)); event.interface_status.ievent = EVENT_INTERFACE_ADDED; if (drv) wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); else wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS, &event); } static void wpa_driver_nl80211_event_dellink( struct nl80211_global *global, struct wpa_driver_nl80211_data *drv, int ifindex, const char *ifname) { union wpa_event_data event; if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) { if (drv->if_removed) { wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", ifname); return; } wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", ifname); drv->if_removed = 1; } else { wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", ifname); } os_memset(&event, 0, sizeof(event)); event.interface_status.ifindex = ifindex; os_strlcpy(event.interface_status.ifname, ifname, sizeof(event.interface_status.ifname)); event.interface_status.ievent = EVENT_INTERFACE_REMOVED; if (drv) wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); else wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS, &event); } static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, u8 *buf, size_t len) { int attrlen, rta_len; struct rtattr *attr; attrlen = len; attr = (struct rtattr *) buf; rta_len = RTA_ALIGN(sizeof(struct rtattr)); while (RTA_OK(attr, attrlen)) { if (attr->rta_type == IFLA_IFNAME) { if (os_strcmp(((char *) attr) + rta_len, drv->first_bss->ifname) == 0) return 1; else break; } attr = RTA_NEXT(attr, attrlen); } return 0; } static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, int ifindex, u8 *buf, size_t len) { if (drv->ifindex == ifindex) return 1; if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { nl80211_check_global(drv->global); wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " "interface"); if (wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL) < 0) return -1; return 1; } return 0; } static struct wpa_driver_nl80211_data * nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len, int *init_failed) { struct wpa_driver_nl80211_data *drv; int res; if (init_failed) *init_failed = 0; dl_list_for_each(drv, &global->interfaces, struct wpa_driver_nl80211_data, list) { res = wpa_driver_nl80211_own_ifindex(drv, idx, buf, len); if (res < 0) { wpa_printf(MSG_DEBUG, "nl80211: Found matching own interface, but failed to complete reinitialization"); if (init_failed) *init_failed = 1; return drv; } if (res > 0 || have_ifidx(drv, idx, IFIDX_ANY)) return drv; } return NULL; } static void nl80211_refresh_mac(struct wpa_driver_nl80211_data *drv, int ifindex, int notify) { struct i802_bss *bss; u8 addr[ETH_ALEN]; bss = get_bss_ifindex(drv, ifindex); if (bss && linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0) { wpa_printf(MSG_DEBUG, "nl80211: %s: failed to re-read MAC address", bss->ifname); } else if (bss && os_memcmp(addr, bss->addr, ETH_ALEN) != 0) { wpa_printf(MSG_DEBUG, "nl80211: Own MAC address on ifindex %d (%s) changed from " MACSTR " to " MACSTR, ifindex, bss->ifname, MAC2STR(bss->addr), MAC2STR(addr)); os_memcpy(bss->addr, addr, ETH_ALEN); if (notify) wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_MAC_CHANGED, NULL); } } static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, struct ifinfomsg *ifi, u8 *buf, size_t len) { struct nl80211_global *global = ctx; struct wpa_driver_nl80211_data *drv; int attrlen; struct rtattr *attr; u32 brid = 0; char namebuf[IFNAMSIZ]; char ifname[IFNAMSIZ + 1]; char extra[100], *pos, *end; int init_failed; extra[0] = '\0'; pos = extra; end = pos + sizeof(extra); ifname[0] = '\0'; attrlen = len; attr = (struct rtattr *) buf; while (RTA_OK(attr, attrlen)) { switch (attr->rta_type) { case IFLA_IFNAME: if (RTA_PAYLOAD(attr) > IFNAMSIZ) break; os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); ifname[RTA_PAYLOAD(attr)] = '\0'; break; case IFLA_MASTER: brid = nla_get_u32((struct nlattr *) attr); pos += os_snprintf(pos, end - pos, " master=%u", brid); break; case IFLA_WIRELESS: pos += os_snprintf(pos, end - pos, " wext"); break; case IFLA_OPERSTATE: pos += os_snprintf(pos, end - pos, " operstate=%u", nla_get_u32((struct nlattr *) attr)); break; case IFLA_LINKMODE: pos += os_snprintf(pos, end - pos, " linkmode=%u", nla_get_u32((struct nlattr *) attr)); break; } attr = RTA_NEXT(attr, attrlen); } extra[sizeof(extra) - 1] = '\0'; wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", ifi->ifi_index, ifname, extra, ifi->ifi_family, ifi->ifi_flags, (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, &init_failed); if (!drv) goto event_newlink; if (init_failed) return; /* do not update interface state */ if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { namebuf[0] = '\0'; if (if_indextoname(ifi->ifi_index, namebuf) && linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) { wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " "event since interface %s is up", namebuf); drv->ignore_if_down_event = 0; /* Re-read MAC address as it may have changed */ nl80211_refresh_mac(drv, ifi->ifi_index, 1); return; } wpa_printf(MSG_DEBUG, "nl80211: Interface down (%s/%s)", namebuf, ifname); if (os_strcmp(drv->first_bss->ifname, ifname) != 0) { wpa_printf(MSG_DEBUG, "nl80211: Not the main interface (%s) - do not indicate interface down", drv->first_bss->ifname); } else if (drv->ignore_if_down_event) { wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " "event generated by mode change"); drv->ignore_if_down_event = 0; } else { drv->if_disabled = 1; wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); /* * Try to get drv again, since it may be removed as * part of the EVENT_INTERFACE_DISABLED handling for * dynamic interfaces */ drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, NULL); if (!drv) return; } } if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { namebuf[0] = '\0'; if (if_indextoname(ifi->ifi_index, namebuf) && linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) { wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " "event since interface %s is down", namebuf); return; } wpa_printf(MSG_DEBUG, "nl80211: Interface up (%s/%s)", namebuf, ifname); if (os_strcmp(drv->first_bss->ifname, ifname) != 0) { wpa_printf(MSG_DEBUG, "nl80211: Not the main interface (%s) - do not indicate interface up", drv->first_bss->ifname); } else if (if_nametoindex(drv->first_bss->ifname) == 0) { wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " "event since interface %s does not exist", drv->first_bss->ifname); } else if (drv->if_removed) { wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " "event since interface %s is marked " "removed", drv->first_bss->ifname); } else { /* Re-read MAC address as it may have changed */ nl80211_refresh_mac(drv, ifi->ifi_index, 0); drv->if_disabled = 0; wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); } } /* * Some drivers send the association event before the operup event--in * this case, lifting operstate in wpa_driver_nl80211_set_operstate() * fails. This will hit us when wpa_supplicant does not need to do * IEEE 802.1X authentication */ if (drv->operstate == 1 && (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && !(ifi->ifi_flags & IFF_RUNNING)) { wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, IF_OPER_UP); } event_newlink: if (ifname[0]) wpa_driver_nl80211_event_newlink(global, drv, ifi->ifi_index, ifname); if (ifi->ifi_family == AF_BRIDGE && brid && drv) { struct i802_bss *bss; /* device has been added to bridge */ if (!if_indextoname(brid, namebuf)) { wpa_printf(MSG_DEBUG, "nl80211: Could not find bridge ifname for ifindex %u", brid); return; } wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", brid, namebuf); add_ifidx(drv, brid, ifi->ifi_index); for (bss = drv->first_bss; bss; bss = bss->next) { if (os_strcmp(ifname, bss->ifname) == 0) { os_strlcpy(bss->brname, namebuf, IFNAMSIZ); break; } } } } static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, struct ifinfomsg *ifi, u8 *buf, size_t len) { struct nl80211_global *global = ctx; struct wpa_driver_nl80211_data *drv; int attrlen; struct rtattr *attr; u32 brid = 0; char ifname[IFNAMSIZ + 1]; char extra[100], *pos, *end; extra[0] = '\0'; pos = extra; end = pos + sizeof(extra); ifname[0] = '\0'; attrlen = len; attr = (struct rtattr *) buf; while (RTA_OK(attr, attrlen)) { switch (attr->rta_type) { case IFLA_IFNAME: if (RTA_PAYLOAD(attr) > IFNAMSIZ) break; os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); ifname[RTA_PAYLOAD(attr)] = '\0'; break; case IFLA_MASTER: brid = nla_get_u32((struct nlattr *) attr); pos += os_snprintf(pos, end - pos, " master=%u", brid); break; case IFLA_OPERSTATE: pos += os_snprintf(pos, end - pos, " operstate=%u", nla_get_u32((struct nlattr *) attr)); break; case IFLA_LINKMODE: pos += os_snprintf(pos, end - pos, " linkmode=%u", nla_get_u32((struct nlattr *) attr)); break; } attr = RTA_NEXT(attr, attrlen); } extra[sizeof(extra) - 1] = '\0'; wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)", ifi->ifi_index, ifname, extra, ifi->ifi_family, ifi->ifi_flags, (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, NULL); if (ifi->ifi_family == AF_BRIDGE && brid && drv) { /* device has been removed from bridge */ char namebuf[IFNAMSIZ]; if (!if_indextoname(brid, namebuf)) { wpa_printf(MSG_DEBUG, "nl80211: Could not find bridge ifname for ifindex %u", brid); } else { wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge %s", brid, namebuf); } del_ifidx(drv, brid, ifi->ifi_index); } if (ifi->ifi_family != AF_BRIDGE || !brid) wpa_driver_nl80211_event_dellink(global, drv, ifi->ifi_index, ifname); } struct nl80211_get_assoc_freq_arg { struct wpa_driver_nl80211_data *drv; unsigned int assoc_freq; unsigned int ibss_freq; u8 assoc_bssid[ETH_ALEN]; u8 assoc_ssid[SSID_MAX_LEN]; u8 assoc_ssid_len; }; static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *bss[NL80211_BSS_MAX + 1]; static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, [NL80211_BSS_STATUS] = { .type = NLA_U32 }, }; struct nl80211_get_assoc_freq_arg *ctx = arg; enum nl80211_bss_status status; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[NL80211_ATTR_BSS] || nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], bss_policy) || !bss[NL80211_BSS_STATUS]) return NL_SKIP; status = nla_get_u32(bss[NL80211_BSS_STATUS]); if (status == NL80211_BSS_STATUS_ASSOCIATED && bss[NL80211_BSS_FREQUENCY]) { ctx->assoc_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", ctx->assoc_freq); } if (status == NL80211_BSS_STATUS_IBSS_JOINED && bss[NL80211_BSS_FREQUENCY]) { ctx->ibss_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz", ctx->ibss_freq); } if (status == NL80211_BSS_STATUS_ASSOCIATED && bss[NL80211_BSS_BSSID]) { os_memcpy(ctx->assoc_bssid, nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); wpa_printf(MSG_DEBUG, "nl80211: Associated with " MACSTR, MAC2STR(ctx->assoc_bssid)); } if (status == NL80211_BSS_STATUS_ASSOCIATED && bss[NL80211_BSS_INFORMATION_ELEMENTS]) { const u8 *ie, *ssid; size_t ie_len; ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); ssid = get_ie(ie, ie_len, WLAN_EID_SSID); if (ssid && ssid[1] > 0 && ssid[1] <= SSID_MAX_LEN) { ctx->assoc_ssid_len = ssid[1]; os_memcpy(ctx->assoc_ssid, ssid + 2, ssid[1]); } } return NL_SKIP; } int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid) { struct nl_msg *msg; int ret; struct nl80211_get_assoc_freq_arg arg; int count = 0; try_again: msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN); os_memset(&arg, 0, sizeof(arg)); arg.drv = drv; ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler, &arg, NULL, NULL); if (ret == -EAGAIN) { count++; if (count >= 10) { wpa_printf(MSG_INFO, "nl80211: Failed to receive consistent scan result dump for get_assoc_ssid"); } else { wpa_printf(MSG_DEBUG, "nl80211: Failed to receive consistent scan result dump for get_assoc_ssid - try again"); goto try_again; } } if (ret == 0) { os_memcpy(ssid, arg.assoc_ssid, arg.assoc_ssid_len); return arg.assoc_ssid_len; } wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d (%s)", ret, strerror(-ret)); return ret; } unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) { struct nl_msg *msg; int ret; struct nl80211_get_assoc_freq_arg arg; int count = 0; try_again: msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN); os_memset(&arg, 0, sizeof(arg)); arg.drv = drv; ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler, &arg, NULL, NULL); if (ret == -EAGAIN) { count++; if (count >= 10) { wpa_printf(MSG_INFO, "nl80211: Failed to receive consistent scan result dump for get_assoc_freq"); } else { wpa_printf(MSG_DEBUG, "nl80211: Failed to receive consistent scan result dump for get_assoc_freq - try again"); goto try_again; } } if (ret == 0) { unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ? arg.ibss_freq : arg.assoc_freq; wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " "associated BSS from scan results: %u MHz", freq); if (freq) drv->assoc_freq = freq; return drv->assoc_freq; } wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " "(%s)", ret, strerror(-ret)); return drv->assoc_freq; } static int get_link_signal(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .type = NLA_U8 }, }; struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, }; struct wpa_signal_info *sig_change = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[NL80211_ATTR_STA_INFO] || nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, tb[NL80211_ATTR_STA_INFO], policy)) return NL_SKIP; if (!sinfo[NL80211_STA_INFO_SIGNAL]) return NL_SKIP; sig_change->current_signal = (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) sig_change->avg_signal = (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); else sig_change->avg_signal = 0; if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]) sig_change->avg_beacon_signal = (s8) nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]); else sig_change->avg_beacon_signal = 0; if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy)) { sig_change->current_txrate = 0; } else { if (rinfo[NL80211_RATE_INFO_BITRATE]) { sig_change->current_txrate = nla_get_u16(rinfo[ NL80211_RATE_INFO_BITRATE]) * 100; } } } return NL_SKIP; } int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, struct wpa_signal_info *sig) { struct nl_msg *msg; sig->current_signal = -WPA_INVALID_NOISE; sig->current_txrate = 0; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) { nlmsg_free(msg); return -ENOBUFS; } return send_and_recv_msgs(drv, msg, get_link_signal, sig, NULL, NULL); } static int get_link_noise(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, }; struct wpa_signal_info *sig_change = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[NL80211_ATTR_SURVEY_INFO]) { wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); return NL_SKIP; } if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, tb[NL80211_ATTR_SURVEY_INFO], survey_policy)) { wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " "attributes!"); return NL_SKIP; } if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) return NL_SKIP; if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != sig_change->frequency) return NL_SKIP; if (!sinfo[NL80211_SURVEY_INFO_NOISE]) return NL_SKIP; sig_change->current_noise = (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); return NL_SKIP; } int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, struct wpa_signal_info *sig_change) { struct nl_msg *msg; sig_change->current_noise = WPA_INVALID_NOISE; sig_change->frequency = drv->assoc_freq; msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); return send_and_recv_msgs(drv, msg, get_link_noise, sig_change, NULL, NULL); } static int get_channel_info(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1] = { 0 }; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct wpa_channel_info *chan_info = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); os_memset(chan_info, 0, sizeof(struct wpa_channel_info)); chan_info->chanwidth = CHAN_WIDTH_UNKNOWN; if (tb[NL80211_ATTR_WIPHY_FREQ]) chan_info->frequency = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); if (tb[NL80211_ATTR_CHANNEL_WIDTH]) chan_info->chanwidth = convert2width( nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { enum nl80211_channel_type ct = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); switch (ct) { case NL80211_CHAN_HT40MINUS: chan_info->sec_channel = -1; break; case NL80211_CHAN_HT40PLUS: chan_info->sec_channel = 1; break; default: chan_info->sec_channel = 0; break; } } if (tb[NL80211_ATTR_CENTER_FREQ1]) chan_info->center_frq1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); if (tb[NL80211_ATTR_CENTER_FREQ2]) chan_info->center_frq2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); if (chan_info->center_frq2) { u8 seg1_idx = 0; if (ieee80211_freq_to_chan(chan_info->center_frq2, &seg1_idx) != NUM_HOSTAPD_MODES) chan_info->seg1_idx = seg1_idx; } return NL_SKIP; } static int nl80211_channel_info(void *priv, struct wpa_channel_info *ci) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE); return send_and_recv_msgs(drv, msg, get_channel_info, ci, NULL, NULL); } static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, void *handle) { struct nl_cb *cb = eloop_ctx; int res; wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); res = nl_recvmsgs(handle, cb); if (res < 0) { wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", __func__, res); } } /** * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain * @priv: driver_nl80211 private data * @alpha2_arg: country to which to switch to * Returns: 0 on success, -1 on failure * * This asks nl80211 to set the regulatory domain for given * country ISO / IEC alpha2. */ static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; char alpha2[3]; struct nl_msg *msg; msg = nlmsg_alloc(); if (!msg) return -ENOMEM; alpha2[0] = alpha2_arg[0]; alpha2[1] = alpha2_arg[1]; alpha2[2] = '\0'; if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) || nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) { nlmsg_free(msg); return -EINVAL; } if (send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL)) return -EINVAL; return 0; } static int nl80211_get_country(struct nl_msg *msg, void *arg) { char *alpha2 = arg; struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { wpa_printf(MSG_DEBUG, "nl80211: No country information available"); return NL_SKIP; } os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); return NL_SKIP; } static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; msg = nlmsg_alloc(); if (!msg) return -ENOMEM; nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); alpha2[0] = '\0'; ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2, NULL, NULL); if (!alpha2[0]) ret = -1; return ret; } static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) { int ret; global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); if (global->nl_cb == NULL) { wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " "callbacks"); return -1; } global->nl = nl_create_handle(global->nl_cb, "nl"); if (global->nl == NULL) goto err; global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); if (global->nl80211_id < 0) { wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " "found"); goto err; } global->nl_event = nl_create_handle(global->nl_cb, "event"); if (global->nl_event == NULL) goto err; ret = nl_get_multicast_id(global, "nl80211", "scan"); if (ret >= 0) ret = nl_socket_add_membership(global->nl_event, ret); if (ret < 0) { wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " "membership for scan events: %d (%s)", ret, nl_geterror(ret)); goto err; } ret = nl_get_multicast_id(global, "nl80211", "mlme"); if (ret >= 0) ret = nl_socket_add_membership(global->nl_event, ret); if (ret < 0) { wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " "membership for mlme events: %d (%s)", ret, nl_geterror(ret)); goto err; } ret = nl_get_multicast_id(global, "nl80211", "regulatory"); if (ret >= 0) ret = nl_socket_add_membership(global->nl_event, ret); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " "membership for regulatory events: %d (%s)", ret, nl_geterror(ret)); /* Continue without regulatory events */ } ret = nl_get_multicast_id(global, "nl80211", "vendor"); if (ret >= 0) ret = nl_socket_add_membership(global->nl_event, ret); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " "membership for vendor events: %d (%s)", ret, nl_geterror(ret)); /* Continue without vendor events */ } nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_global_event, global); nl80211_register_eloop_read(&global->nl_event, wpa_driver_nl80211_event_receive, global->nl_cb, 0); return 0; err: nl_destroy_handles(&global->nl_event); nl_destroy_handles(&global->nl); nl_cb_put(global->nl_cb); global->nl_cb = NULL; return -1; } static void nl80211_check_global(struct nl80211_global *global) { struct nl_sock *handle; const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL }; int ret; unsigned int i; /* * Try to re-add memberships to handle case of cfg80211 getting reloaded * and all registration having been cleared. */ handle = (void *) (((intptr_t) global->nl_event) ^ ELOOP_SOCKET_INVALID); for (i = 0; groups[i]; i++) { ret = nl_get_multicast_id(global, "nl80211", groups[i]); if (ret >= 0) ret = nl_socket_add_membership(handle, ret); if (ret < 0) { wpa_printf(MSG_INFO, "nl80211: Could not re-add multicast membership for %s events: %d (%s)", groups[i], ret, nl_geterror(ret)); } } } static void wpa_driver_nl80211_rfkill_blocked(void *ctx) { struct wpa_driver_nl80211_data *drv = ctx; wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); /* * rtnetlink ifdown handler will report interfaces other than the P2P * Device interface as disabled. */ if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); } static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) { struct wpa_driver_nl80211_data *drv = ctx; wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); if (i802_set_iface_flags(drv->first_bss, 1)) { wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " "after rfkill unblock"); return; } if (is_p2p_net_interface(drv->nlmode)) nl80211_disable_11b_rates(drv, drv->ifindex, 1); /* * rtnetlink ifup handler will report interfaces other than the P2P * Device interface as enabled. */ if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); } static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, void *eloop_ctx, void *handle) { struct wpa_driver_nl80211_data *drv = eloop_ctx; u8 data[2048]; struct msghdr msg; struct iovec entry; u8 control[512]; struct cmsghdr *cmsg; int res, found_ee = 0, found_wifi = 0, acked = 0; union wpa_event_data event; memset(&msg, 0, sizeof(msg)); msg.msg_iov = &entry; msg.msg_iovlen = 1; entry.iov_base = data; entry.iov_len = sizeof(data); msg.msg_control = &control; msg.msg_controllen = sizeof(control); res = recvmsg(sock, &msg, MSG_ERRQUEUE); /* if error or not fitting 802.3 header, return */ if (res < 14) return; for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_WIFI_STATUS) { int *ack; found_wifi = 1; ack = (void *)CMSG_DATA(cmsg); acked = *ack; } if (cmsg->cmsg_level == SOL_PACKET && cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { struct sock_extended_err *err = (struct sock_extended_err *)CMSG_DATA(cmsg); if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) found_ee = 1; } } if (!found_ee || !found_wifi) return; memset(&event, 0, sizeof(event)); event.eapol_tx_status.dst = data; event.eapol_tx_status.data = data + 14; event.eapol_tx_status.data_len = res - 14; event.eapol_tx_status.ack = acked; wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); } static int nl80211_init_connect_handle(struct i802_bss *bss) { if (bss->nl_connect) { wpa_printf(MSG_DEBUG, "nl80211: Connect handle already created (nl_connect=%p)", bss->nl_connect); return -1; } bss->nl_connect = nl_create_handle(bss->nl_cb, "connect"); if (!bss->nl_connect) return -1; nl80211_register_eloop_read(&bss->nl_connect, wpa_driver_nl80211_event_receive, bss->nl_cb, 1); return 0; } static int nl80211_init_bss(struct i802_bss *bss) { bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); if (!bss->nl_cb) return -1; nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_bss_event, bss); nl80211_init_connect_handle(bss); return 0; } static void nl80211_destroy_bss(struct i802_bss *bss) { nl_cb_put(bss->nl_cb); bss->nl_cb = NULL; if (bss->nl_connect) nl80211_destroy_eloop_handle(&bss->nl_connect, 1); } static void wpa_driver_nl80211_drv_init_rfkill(struct wpa_driver_nl80211_data *drv) { struct rfkill_config *rcfg; if (drv->rfkill) return; rcfg = os_zalloc(sizeof(*rcfg)); if (!rcfg) return; rcfg->ctx = drv; /* rfkill uses netdev sysfs for initialization. However, P2P Device is * not associated with a netdev, so use the name of some other interface * sharing the same wiphy as the P2P Device interface. * * Note: This is valid, as a P2P Device interface is always dynamically * created and is created only once another wpa_s interface was added. */ if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) { struct nl80211_global *global = drv->global; struct wpa_driver_nl80211_data *tmp1; dl_list_for_each(tmp1, &global->interfaces, struct wpa_driver_nl80211_data, list) { if (drv == tmp1 || drv->wiphy_idx != tmp1->wiphy_idx || !tmp1->rfkill) continue; wpa_printf(MSG_DEBUG, "nl80211: Use (%s) to initialize P2P Device rfkill", tmp1->first_bss->ifname); os_strlcpy(rcfg->ifname, tmp1->first_bss->ifname, sizeof(rcfg->ifname)); break; } } else { os_strlcpy(rcfg->ifname, drv->first_bss->ifname, sizeof(rcfg->ifname)); } rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; drv->rfkill = rfkill_init(rcfg); if (!drv->rfkill) { wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); os_free(rcfg); } } static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, void *global_priv, int hostapd, const u8 *set_addr, const char *driver_params) { struct wpa_driver_nl80211_data *drv; struct i802_bss *bss; if (global_priv == NULL) return NULL; drv = os_zalloc(sizeof(*drv)); if (drv == NULL) return NULL; drv->global = global_priv; drv->ctx = ctx; drv->hostapd = !!hostapd; drv->eapol_sock = -1; /* * There is no driver capability flag for this, so assume it is * supported and disable this on first attempt to use if the driver * rejects the command due to missing support. */ drv->set_rekey_offload = 1; drv->num_if_indices = ARRAY_SIZE(drv->default_if_indices); drv->if_indices = drv->default_if_indices; drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); if (!drv->first_bss) { os_free(drv); return NULL; } bss = drv->first_bss; bss->drv = drv; bss->ctx = ctx; os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); drv->monitor_ifidx = -1; drv->monitor_sock = -1; drv->eapol_tx_sock = -1; drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; if (nl80211_init_bss(bss)) goto failed; if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params)) goto failed; if (drv->capa.flags2 & WPA_DRIVER_FLAGS2_CONTROL_PORT_TX_STATUS) { drv->control_port_ap = 1; goto skip_wifi_status; } drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); if (drv->eapol_tx_sock < 0) goto failed; if (drv->data_tx_status) { int enabled = 1; if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, &enabled, sizeof(enabled)) < 0) { wpa_printf(MSG_DEBUG, "nl80211: wifi status sockopt failed: %s", strerror(errno)); drv->data_tx_status = 0; if (!drv->use_monitor) drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; } else { eloop_register_read_sock( drv->eapol_tx_sock, wpa_driver_nl80211_handle_eapol_tx_status, drv, NULL); } } skip_wifi_status: if (drv->global) { nl80211_check_global(drv->global); dl_list_add(&drv->global->interfaces, &drv->list); drv->in_interface_list = 1; } return bss; failed: wpa_driver_nl80211_deinit(bss); return NULL; } /** * wpa_driver_nl80211_init - Initialize nl80211 driver interface * @ctx: context to be used when calling wpa_supplicant functions, * e.g., wpa_supplicant_event() * @ifname: interface name, e.g., wlan0 * @global_priv: private driver global data from global_init() * Returns: Pointer to private data, %NULL on failure */ static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, void *global_priv) { return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL, NULL); } static int nl80211_register_frame(struct i802_bss *bss, struct nl_sock *nl_handle, u16 type, const u8 *match, size_t match_len, bool multicast) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; char buf[30]; buf[0] = '\0'; wpa_snprintf_hex(buf, sizeof(buf), match, match_len); wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s multicast=%d", type, fc2str(type), nl_handle, buf, multicast); if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_FRAME)) || (multicast && nla_put_flag(msg, NL80211_ATTR_RECEIVE_MULTICAST)) || nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) || nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) { nlmsg_free(msg); return -1; } ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Register frame command " "failed (type=%u): ret=%d (%s)", type, ret, strerror(-ret)); wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", match, match_len); } return ret; } static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) { if (bss->nl_mgmt) { wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " "already on! (nl_mgmt=%p)", bss->nl_mgmt); return -1; } bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt"); if (bss->nl_mgmt == NULL) return -1; return 0; } static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) { nl80211_register_eloop_read(&bss->nl_mgmt, wpa_driver_nl80211_event_receive, bss->nl_cb, 0); } static int nl80211_register_action_frame(struct i802_bss *bss, const u8 *match, size_t match_len) { u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); return nl80211_register_frame(bss, bss->nl_mgmt, type, match, match_len, false); } static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); int ret = 0; if (nl80211_alloc_mgmt_handle(bss)) return -1; wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " "handle %p", bss->nl_mgmt); if (drv->nlmode == NL80211_IFTYPE_ADHOC) { /* register for any AUTH message */ nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0, false); } else if ((drv->capa.flags & WPA_DRIVER_FLAGS_SAE) && !(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { /* register for SAE Authentication frames */ nl80211_register_frame(bss, bss->nl_mgmt, type, (u8 *) "\x03\x00", 2, false); } #ifdef CONFIG_PASN /* register for PASN Authentication frames */ if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && nl80211_register_frame(bss, bss->nl_mgmt, type, (u8 *) "\x07\x00", 2, false)) ret = -1; #endif /* CONFIG_PASN */ #ifdef CONFIG_INTERWORKING /* QoS Map Configure */ if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) ret = -1; #endif /* CONFIG_INTERWORKING */ #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) || defined(CONFIG_DPP) /* GAS Initial Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) ret = -1; /* GAS Initial Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) ret = -1; /* GAS Comeback Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) ret = -1; /* GAS Comeback Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) ret = -1; /* Protected GAS Initial Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) ret = -1; /* Protected GAS Initial Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) ret = -1; /* Protected GAS Comeback Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) ret = -1; /* Protected GAS Comeback Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) ret = -1; #endif /* CONFIG_P2P || CONFIG_INTERWORKING || CONFIG_DPP */ #ifdef CONFIG_P2P /* P2P Public Action */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x09\x50\x6f\x9a\x09", 6) < 0) ret = -1; /* P2P Action */ if (nl80211_register_action_frame(bss, (u8 *) "\x7f\x50\x6f\x9a\x09", 5) < 0) ret = -1; #endif /* CONFIG_P2P */ #ifdef CONFIG_DPP /* DPP Public Action */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x09\x50\x6f\x9a\x1a", 6) < 0) ret = -1; #endif /* CONFIG_DPP */ #ifdef CONFIG_OCV /* SA Query Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x08\x00", 2) < 0) ret = -1; #endif /* CONFIG_OCV */ /* SA Query Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) ret = -1; #ifdef CONFIG_TDLS if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { /* TDLS Discovery Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < 0) ret = -1; } #endif /* CONFIG_TDLS */ #ifdef CONFIG_FST /* FST Action frames */ if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0) ret = -1; #endif /* CONFIG_FST */ /* FT Action frames */ if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) ret = -1; else if (!drv->has_driver_key_mgmt) { int i; /* Update supported AKMs only if the driver doesn't advertize * any AKM capabilities. */ drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; /* Update per interface supported AKMs */ for (i = 0; i < WPA_IF_MAX; i++) drv->capa.key_mgmt_iftype[i] = drv->capa.key_mgmt; } /* WNM - BSS Transition Management Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) ret = -1; /* WNM-Sleep Mode Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) ret = -1; #ifdef CONFIG_WNM /* WNM - Collocated Interference Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x0b", 2) < 0) ret = -1; #endif /* CONFIG_WNM */ #ifdef CONFIG_HS20 /* WNM-Notification */ if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) ret = -1; #endif /* CONFIG_HS20 */ /* WMM-AC ADDTS Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0) ret = -1; /* WMM-AC DELTS */ if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0) ret = -1; /* Radio Measurement - Neighbor Report Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0) ret = -1; /* Radio Measurement - Radio Measurement Request */ if (!drv->no_rrm && nl80211_register_action_frame(bss, (u8 *) "\x05\x00", 2) < 0) ret = -1; /* Radio Measurement - Link Measurement Request */ if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) && (nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0)) ret = -1; /* Robust AV MSCS Response */ if (nl80211_register_action_frame(bss, (u8 *) "\x13\x05", 2) < 0) ret = -1; nl80211_mgmt_handle_register_eloop(bss); return ret; } static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss) { int ret = 0; if (nl80211_alloc_mgmt_handle(bss)) return -1; wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with mesh handle %p", bss->nl_mgmt); /* Auth frames for mesh SAE */ if (nl80211_register_frame(bss, bss->nl_mgmt, (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4), NULL, 0, false) < 0) ret = -1; /* Mesh peering open */ if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0) ret = -1; /* Mesh peering confirm */ if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0) ret = -1; /* Mesh peering close */ if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0) ret = -1; nl80211_mgmt_handle_register_eloop(bss); return ret; } static int nl80211_register_spurious_class3(struct i802_bss *bss) { struct nl_msg *msg; int ret; msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME); ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " "failed: ret=%d (%s)", ret, strerror(-ret)); } return ret; } static int nl80211_action_subscribe_ap(struct i802_bss *bss) { int ret = 0; /* Public Action frames */ if (nl80211_register_action_frame(bss, (u8 *) "\x04", 1) < 0) ret = -1; /* RRM Measurement Report */ if (nl80211_register_action_frame(bss, (u8 *) "\x05\x01", 2) < 0) ret = -1; /* RRM Link Measurement Report */ if (nl80211_register_action_frame(bss, (u8 *) "\x05\x03", 2) < 0) ret = -1; /* RRM Neighbor Report Request */ if (nl80211_register_action_frame(bss, (u8 *) "\x05\x04", 2) < 0) ret = -1; /* FT Action frames */ if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) ret = -1; /* SA Query */ if (nl80211_register_action_frame(bss, (u8 *) "\x08", 1) < 0) ret = -1; /* Protected Dual of Public Action */ if (nl80211_register_action_frame(bss, (u8 *) "\x09", 1) < 0) ret = -1; /* WNM */ if (nl80211_register_action_frame(bss, (u8 *) "\x0a", 1) < 0) ret = -1; /* WMM */ if (nl80211_register_action_frame(bss, (u8 *) "\x11", 1) < 0) ret = -1; #ifdef CONFIG_FST /* FST Action frames */ if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0) ret = -1; #endif /* CONFIG_FST */ /* Vendor-specific */ if (nl80211_register_action_frame(bss, (u8 *) "\x7f", 1) < 0) ret = -1; return ret; } static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) { static const int stypes[] = { WLAN_FC_STYPE_AUTH, WLAN_FC_STYPE_ASSOC_REQ, WLAN_FC_STYPE_REASSOC_REQ, WLAN_FC_STYPE_DISASSOC, WLAN_FC_STYPE_DEAUTH, WLAN_FC_STYPE_PROBE_REQ, /* Beacon doesn't work as mac80211 doesn't currently allow * it, but it wouldn't really be the right thing anyway as * it isn't per interface ... maybe just dump the scan * results periodically for OLBC? */ /* WLAN_FC_STYPE_BEACON, */ }; unsigned int i; if (nl80211_alloc_mgmt_handle(bss)) return -1; wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " "handle %p", bss->nl_mgmt); for (i = 0; i < ARRAY_SIZE(stypes); i++) { if (nl80211_register_frame(bss, bss->nl_mgmt, (WLAN_FC_TYPE_MGMT << 2) | (stypes[i] << 4), NULL, 0, false) < 0) { goto out_err; } } if (nl80211_action_subscribe_ap(bss)) goto out_err; if (nl80211_register_spurious_class3(bss)) goto out_err; nl80211_mgmt_handle_register_eloop(bss); return 0; out_err: nl_destroy_handles(&bss->nl_mgmt); return -1; } static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) { if (nl80211_alloc_mgmt_handle(bss)) return -1; wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " "handle %p (device SME)", bss->nl_mgmt); if (nl80211_action_subscribe_ap(bss)) goto out_err; if (bss->drv->device_ap_sme) { u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); /* Register for all Authentication frames */ if (nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0, false) < 0) wpa_printf(MSG_DEBUG, "nl80211: Failed to subscribe to handle Authentication frames - SAE offload may not work"); } nl80211_mgmt_handle_register_eloop(bss); return 0; out_err: nl_destroy_handles(&bss->nl_mgmt); return -1; } static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) { if (bss->nl_mgmt == NULL) return; wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " "(%s)", bss->nl_mgmt, reason); nl80211_destroy_eloop_handle(&bss->nl_mgmt, 0); nl80211_put_wiphy_data_ap(bss); } static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) { wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); } static void nl80211_del_p2pdev(struct i802_bss *bss) { struct nl_msg *msg; int ret; msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE); ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", bss->ifname, (long long unsigned int) bss->wdev_id, strerror(-ret)); } static int nl80211_set_p2pdev(struct i802_bss *bss, int start) { struct nl_msg *msg; int ret; msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE : NL80211_CMD_STOP_P2P_DEVICE); ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", start ? "Start" : "Stop", bss->ifname, (long long unsigned int) bss->wdev_id, strerror(-ret)); return ret; } static int i802_set_iface_flags(struct i802_bss *bss, int up) { enum nl80211_iftype nlmode; nlmode = nl80211_get_ifmode(bss); if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { return linux_set_iface_flags(bss->drv->global->ioctl_sock, bss->ifname, up); } /* P2P Device has start/stop which is equivalent */ return nl80211_set_p2pdev(bss, up); } #ifdef CONFIG_TESTING_OPTIONS static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg) { /* struct wpa_driver_nl80211_data *drv = arg; */ struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); wpa_printf(MSG_DEBUG, "nl80211: QCA vendor test command response received"); nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[NL80211_ATTR_VENDOR_DATA]) { wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute"); return NL_SKIP; } wpa_hexdump(MSG_DEBUG, "nl80211: Received QCA vendor test command response", nla_data(tb[NL80211_ATTR_VENDOR_DATA]), nla_len(tb[NL80211_ATTR_VENDOR_DATA])); return NL_SKIP; } #endif /* CONFIG_TESTING_OPTIONS */ static void qca_vendor_test(struct wpa_driver_nl80211_data *drv) { #ifdef CONFIG_TESTING_OPTIONS struct nl_msg *msg; struct nlattr *params; int ret; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_TEST) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) { nlmsg_free(msg); return; } nla_nest_end(msg, params); ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: QCA vendor test command returned %d (%s)", ret, strerror(-ret)); #endif /* CONFIG_TESTING_OPTIONS */ } static int wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, const u8 *set_addr, int first, const char *driver_params) { struct i802_bss *bss = drv->first_bss; int send_rfkill_event = 0; enum nl80211_iftype nlmode; drv->ifindex = if_nametoindex(bss->ifname); bss->ifindex = drv->ifindex; bss->wdev_id = drv->global->if_add_wdevid; bss->wdev_id_set = drv->global->if_add_wdevid_set; bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; drv->global->if_add_wdevid_set = 0; if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) bss->static_ap = 1; if (first && nl80211_get_ifmode(bss) != NL80211_IFTYPE_P2P_DEVICE && linux_iface_up(drv->global->ioctl_sock, bss->ifname) > 0) drv->start_iface_up = 1; if (wpa_driver_nl80211_capa(drv)) return -1; if (driver_params && nl80211_set_param(bss, driver_params) < 0) return -1; wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", bss->ifname, drv->phyname); if (set_addr && (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, set_addr))) return -1; if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) drv->start_mode_ap = 1; if (drv->hostapd || bss->static_ap) nlmode = NL80211_IFTYPE_AP; else if (bss->if_dynamic || nl80211_get_ifmode(bss) == NL80211_IFTYPE_MESH_POINT) nlmode = nl80211_get_ifmode(bss); else nlmode = NL80211_IFTYPE_STATION; if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); return -1; } if (nlmode == NL80211_IFTYPE_P2P_DEVICE) nl80211_get_macaddr(bss); wpa_driver_nl80211_drv_init_rfkill(drv); if (!rfkill_is_blocked(drv->rfkill)) { int ret = i802_set_iface_flags(bss, 1); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Could not set " "interface '%s' UP", bss->ifname); return ret; } if (is_p2p_net_interface(nlmode)) nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1); if (nlmode == NL80211_IFTYPE_P2P_DEVICE) return ret; } else { wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " "interface '%s' due to rfkill", bss->ifname); if (nlmode != NL80211_IFTYPE_P2P_DEVICE) drv->if_disabled = 1; send_rfkill_event = 1; } if (!drv->hostapd && nlmode != NL80211_IFTYPE_P2P_DEVICE) netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 1, IF_OPER_DORMANT); if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, bss->addr)) return -1; os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN); } if (send_rfkill_event) { eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, drv, drv->ctx); } if (drv->vendor_cmd_test_avail) qca_vendor_test(drv); return 0; } static int wpa_driver_nl80211_del_beacon(struct i802_bss *bss) { struct nl_msg *msg; struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", drv->ifindex); nl80211_put_wiphy_data_ap(bss); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } /** * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() * * Shut down driver interface and processing of driver events. Free * private data buffer if one was allocated in wpa_driver_nl80211_init(). */ static void wpa_driver_nl80211_deinit(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; unsigned int i; wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d", bss->ifname, drv->disabled_11b_rates); bss->in_deinit = 1; if (drv->data_tx_status) eloop_unregister_read_sock(drv->eapol_tx_sock); if (drv->eapol_tx_sock >= 0) close(drv->eapol_tx_sock); if (bss->nl_preq) wpa_driver_nl80211_probe_req_report(bss, 0); if (bss->added_if_into_bridge) { if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, bss->ifname) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove " "interface %s from bridge %s: %s", bss->ifname, bss->brname, strerror(errno)); } if (drv->rtnl_sk) nl_socket_free(drv->rtnl_sk); if (bss->added_bridge) { if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname, 0) < 0) wpa_printf(MSG_INFO, "nl80211: Could not set bridge %s down", bss->brname); if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove " "bridge %s: %s", bss->brname, strerror(errno)); } nl80211_remove_monitor_interface(drv); if (is_ap_interface(drv->nlmode)) wpa_driver_nl80211_del_beacon(bss); if (drv->eapol_sock >= 0) { eloop_unregister_read_sock(drv->eapol_sock); close(drv->eapol_sock); } if (drv->if_indices != drv->default_if_indices) os_free(drv->if_indices); if (drv->disabled_11b_rates) nl80211_disable_11b_rates(drv, drv->ifindex, 0); netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, IF_OPER_UP); eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx); rfkill_deinit(drv->rfkill); eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); if (!drv->start_iface_up) (void) i802_set_iface_flags(bss, 0); if (drv->addr_changed) { if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not set interface down to restore permanent MAC address"); } if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, drv->perm_addr) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not restore permanent MAC address"); } } if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { if (!drv->hostapd || !drv->start_mode_ap) wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION); nl80211_mgmt_unsubscribe(bss, "deinit"); } else { nl80211_mgmt_unsubscribe(bss, "deinit"); nl80211_del_p2pdev(bss); } nl80211_destroy_bss(drv->first_bss); os_free(drv->filter_ssids); os_free(drv->auth_ie); os_free(drv->auth_data); if (drv->in_interface_list) dl_list_del(&drv->list); os_free(drv->extended_capa); os_free(drv->extended_capa_mask); for (i = 0; i < drv->num_iface_ext_capa; i++) { os_free(drv->iface_ext_capa[i].ext_capa); os_free(drv->iface_ext_capa[i].ext_capa_mask); } os_free(drv->first_bss); #ifdef CONFIG_DRIVER_NL80211_QCA os_free(drv->pending_roam_data); #endif /* CONFIG_DRIVER_NL80211_QCA */ os_free(drv); } static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) { switch (alg) { case WPA_ALG_WEP: if (key_len == 5) return RSN_CIPHER_SUITE_WEP40; return RSN_CIPHER_SUITE_WEP104; case WPA_ALG_TKIP: return RSN_CIPHER_SUITE_TKIP; case WPA_ALG_CCMP: return RSN_CIPHER_SUITE_CCMP; case WPA_ALG_GCMP: return RSN_CIPHER_SUITE_GCMP; case WPA_ALG_CCMP_256: return RSN_CIPHER_SUITE_CCMP_256; case WPA_ALG_GCMP_256: return RSN_CIPHER_SUITE_GCMP_256; case WPA_ALG_BIP_CMAC_128: return RSN_CIPHER_SUITE_AES_128_CMAC; case WPA_ALG_BIP_GMAC_128: return RSN_CIPHER_SUITE_BIP_GMAC_128; case WPA_ALG_BIP_GMAC_256: return RSN_CIPHER_SUITE_BIP_GMAC_256; case WPA_ALG_BIP_CMAC_256: return RSN_CIPHER_SUITE_BIP_CMAC_256; case WPA_ALG_SMS4: return RSN_CIPHER_SUITE_SMS4; case WPA_ALG_KRK: return RSN_CIPHER_SUITE_KRK; case WPA_ALG_NONE: wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", alg); return 0; } wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", alg); return 0; } static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) { switch (cipher) { case WPA_CIPHER_CCMP_256: return RSN_CIPHER_SUITE_CCMP_256; case WPA_CIPHER_GCMP_256: return RSN_CIPHER_SUITE_GCMP_256; case WPA_CIPHER_CCMP: return RSN_CIPHER_SUITE_CCMP; case WPA_CIPHER_GCMP: return RSN_CIPHER_SUITE_GCMP; case WPA_CIPHER_TKIP: return RSN_CIPHER_SUITE_TKIP; case WPA_CIPHER_WEP104: return RSN_CIPHER_SUITE_WEP104; case WPA_CIPHER_WEP40: return RSN_CIPHER_SUITE_WEP40; case WPA_CIPHER_GTK_NOT_USED: return RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED; } return 0; } static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], int max_suites) { int num_suites = 0; if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) suites[num_suites++] = RSN_CIPHER_SUITE_CCMP_256; if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) suites[num_suites++] = RSN_CIPHER_SUITE_GCMP_256; if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) suites[num_suites++] = RSN_CIPHER_SUITE_CCMP; if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) suites[num_suites++] = RSN_CIPHER_SUITE_GCMP; if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) suites[num_suites++] = RSN_CIPHER_SUITE_TKIP; if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) suites[num_suites++] = RSN_CIPHER_SUITE_WEP104; if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) suites[num_suites++] = RSN_CIPHER_SUITE_WEP40; return num_suites; } static int wpa_key_mgmt_to_suites(unsigned int key_mgmt_suites, u32 suites[], int max_suites) { int num_suites = 0; #define __AKM(a, b) \ if (num_suites < max_suites && \ (key_mgmt_suites & (WPA_KEY_MGMT_ ## a))) \ suites[num_suites++] = (RSN_AUTH_KEY_MGMT_ ## b) __AKM(IEEE8021X, UNSPEC_802_1X); __AKM(PSK, PSK_OVER_802_1X); __AKM(FT_IEEE8021X, FT_802_1X); __AKM(FT_PSK, FT_PSK); __AKM(IEEE8021X_SHA256, 802_1X_SHA256); __AKM(PSK_SHA256, PSK_SHA256); __AKM(SAE, SAE); __AKM(FT_SAE, FT_SAE); __AKM(CCKM, CCKM); __AKM(OSEN, OSEN); __AKM(IEEE8021X_SUITE_B, 802_1X_SUITE_B); __AKM(IEEE8021X_SUITE_B_192, 802_1X_SUITE_B_192); __AKM(FILS_SHA256, FILS_SHA256); __AKM(FILS_SHA384, FILS_SHA384); __AKM(FT_FILS_SHA256, FT_FILS_SHA256); __AKM(FT_FILS_SHA384, FT_FILS_SHA384); __AKM(OWE, OWE); __AKM(DPP, DPP); __AKM(FT_IEEE8021X_SHA384, FT_802_1X_SHA384); #undef __AKM return num_suites; } #ifdef CONFIG_DRIVER_NL80211_QCA static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv, const u8 *key, size_t key_len) { struct nl_msg *msg; int ret; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) return 0; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) || nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) { nl80211_nlmsg_clear(msg); nlmsg_free(msg); return -1; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Key management set key failed: ret=%d (%s)", ret, strerror(-ret)); } return ret; } #endif /* CONFIG_DRIVER_NL80211_QCA */ static int nl80211_set_pmk(struct wpa_driver_nl80211_data *drv, const u8 *key, size_t key_len, const u8 *addr) { struct nl_msg *msg = NULL; int ret; /* * If the authenticator address is not set, assume it is * the current BSSID. */ if (!addr && drv->associated) addr = drv->bssid; else if (!addr) return -1; wpa_printf(MSG_DEBUG, "nl80211: Set PMK to the driver for " MACSTR, MAC2STR(addr)); wpa_hexdump_key(MSG_DEBUG, "nl80211: PMK", key, key_len); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_PMK); if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || nla_put(msg, NL80211_ATTR_PMK, key_len, key)) { nl80211_nlmsg_clear(msg); nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Set PMK failed: ret=%d (%s)", ret, strerror(-ret)); } return ret; } static int wpa_driver_nl80211_set_key(struct i802_bss *bss, struct wpa_driver_set_key_params *params) { struct wpa_driver_nl80211_data *drv = bss->drv; int ifindex; struct nl_msg *msg; struct nl_msg *key_msg; int ret; int skip_set_key = 1; const char *ifname = params->ifname; enum wpa_alg alg = params->alg; const u8 *addr = params->addr; int key_idx = params->key_idx; int set_tx = params->set_tx; const u8 *seq = params->seq; size_t seq_len = params->seq_len; const u8 *key = params->key; size_t key_len = params->key_len; int vlan_id = params->vlan_id; enum key_flag key_flag = params->key_flag; /* Ignore for P2P Device */ if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) return 0; ifindex = if_nametoindex(ifname); wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " "set_tx=%d seq_len=%lu key_len=%lu key_flag=0x%x", __func__, ifindex, ifname, alg, addr, key_idx, set_tx, (unsigned long) seq_len, (unsigned long) key_len, key_flag); if (check_key_flag(key_flag)) { wpa_printf(MSG_DEBUG, "%s: invalid key_flag", __func__); return -EINVAL; } #ifdef CONFIG_DRIVER_NL80211_QCA if ((key_flag & KEY_FLAG_PMK) && (drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) { wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key", __func__); ret = issue_key_mgmt_set_key(drv, key, key_len); return ret; } #endif /* CONFIG_DRIVER_NL80211_QCA */ if (key_flag & KEY_FLAG_PMK) { if (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) return nl80211_set_pmk(drv, key, key_len, addr); /* The driver does not have any offload mechanism for PMK, so * there is no need to configure this key. */ return 0; } ret = -ENOBUFS; key_msg = nlmsg_alloc(); if (!key_msg) return ret; if ((key_flag & KEY_FLAG_PAIRWISE_MASK) == KEY_FLAG_PAIRWISE_RX_TX_MODIFY) { wpa_printf(MSG_DEBUG, "nl80211: SET_KEY (pairwise RX/TX modify)"); msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY); if (!msg) goto fail2; } else if (alg == WPA_ALG_NONE && (key_flag & KEY_FLAG_RX_TX)) { wpa_printf(MSG_DEBUG, "%s: invalid key_flag to delete key", __func__); ret = -EINVAL; goto fail2; } else if (alg == WPA_ALG_NONE) { wpa_printf(MSG_DEBUG, "nl80211: DEL_KEY"); msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY); if (!msg) goto fail2; } else { u32 suite; suite = wpa_alg_to_cipher_suite(alg, key_len); if (!suite) { ret = -EINVAL; goto fail2; } wpa_printf(MSG_DEBUG, "nl80211: NEW_KEY"); msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY); if (!msg) goto fail2; if (nla_put(key_msg, NL80211_KEY_DATA, key_len, key) || nla_put_u32(key_msg, NL80211_KEY_CIPHER, suite)) goto fail; wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len); if (seq && seq_len) { if (nla_put(key_msg, NL80211_KEY_SEQ, seq_len, seq)) goto fail; wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len); } } if (addr && !is_broadcast_ether_addr(addr)) { wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) goto fail; if ((key_flag & KEY_FLAG_PAIRWISE_MASK) == KEY_FLAG_PAIRWISE_RX || (key_flag & KEY_FLAG_PAIRWISE_MASK) == KEY_FLAG_PAIRWISE_RX_TX_MODIFY) { if (nla_put_u8(key_msg, NL80211_KEY_MODE, key_flag == KEY_FLAG_PAIRWISE_RX ? NL80211_KEY_NO_TX : NL80211_KEY_SET_TX)) goto fail; } else if ((key_flag & KEY_FLAG_GROUP_MASK) == KEY_FLAG_GROUP_RX) { wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); if (nla_put_u32(key_msg, NL80211_KEY_TYPE, NL80211_KEYTYPE_GROUP)) goto fail; } else if (!(key_flag & KEY_FLAG_PAIRWISE)) { wpa_printf(MSG_DEBUG, " key_flag missing PAIRWISE when setting a pairwise key"); ret = -EINVAL; goto fail; } else if (alg == WPA_ALG_WEP && (key_flag & KEY_FLAG_RX_TX) == KEY_FLAG_RX_TX) { wpa_printf(MSG_DEBUG, " unicast WEP key"); skip_set_key = 0; } else { wpa_printf(MSG_DEBUG, " pairwise key"); } } else if ((key_flag & KEY_FLAG_PAIRWISE) || !(key_flag & KEY_FLAG_GROUP)) { wpa_printf(MSG_DEBUG, " invalid key_flag for a broadcast key"); ret = -EINVAL; goto fail; } else { wpa_printf(MSG_DEBUG, " broadcast key"); if (key_flag & KEY_FLAG_DEFAULT) skip_set_key = 0; } if (nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) || nla_put_nested(msg, NL80211_ATTR_KEY, key_msg)) goto fail; nl80211_nlmsg_clear(key_msg); nlmsg_free(key_msg); key_msg = NULL; if (vlan_id && (drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD)) { wpa_printf(MSG_DEBUG, "nl80211: VLAN ID %d", vlan_id); if (nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id)) goto fail; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) ret = 0; if (ret) wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s", ret, strerror(-ret)); /* * If we failed or don't need to set the key as default (below), * we're done here. */ if (ret || skip_set_key) return ret; wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_SET_KEY - default key"); ret = -ENOBUFS; key_msg = nlmsg_alloc(); if (!key_msg) return ret; msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY); if (!msg) goto fail2; if (!key_msg || nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) || nla_put_flag(key_msg, wpa_alg_bip(alg) ? (key_idx == 6 || key_idx == 7 ? NL80211_KEY_DEFAULT_BEACON : NL80211_KEY_DEFAULT_MGMT) : NL80211_KEY_DEFAULT)) goto fail; if (addr && is_broadcast_ether_addr(addr)) { struct nlattr *types; types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES); if (!types || nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST)) goto fail; nla_nest_end(key_msg, types); } else if (addr) { struct nlattr *types; types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES); if (!types || nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_UNICAST)) goto fail; nla_nest_end(key_msg, types); } if (nla_put_nested(msg, NL80211_ATTR_KEY, key_msg)) goto fail; nl80211_nlmsg_clear(key_msg); nlmsg_free(key_msg); key_msg = NULL; if (vlan_id && (drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD)) { wpa_printf(MSG_DEBUG, "nl80211: set_key default - VLAN ID %d", vlan_id); if (nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id)) goto fail; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; err=%d %s", ret, strerror(-ret)); return ret; fail: nl80211_nlmsg_clear(msg); nlmsg_free(msg); fail2: nl80211_nlmsg_clear(key_msg); nlmsg_free(key_msg); return ret; } static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, int key_idx, int defkey, const u8 *seq, size_t seq_len, const u8 *key, size_t key_len) { struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); u32 suite; if (!key_attr) return -1; suite = wpa_alg_to_cipher_suite(alg, key_len); if (!suite) return -1; if (defkey && wpa_alg_bip(alg)) { if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT)) return -1; } else if (defkey) { if (nla_put_flag(msg, NL80211_KEY_DEFAULT)) return -1; } if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) || nla_put_u32(msg, NL80211_KEY_CIPHER, suite) || (seq && seq_len && nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) || nla_put(msg, NL80211_KEY_DATA, key_len, key)) return -1; nla_nest_end(msg, key_attr); return 0; } static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, struct nl_msg *msg) { int i, privacy = 0; struct nlattr *nl_keys, *nl_key; for (i = 0; i < 4; i++) { if (!params->wep_key[i]) continue; privacy = 1; break; } if (params->wps == WPS_MODE_PRIVACY) privacy = 1; if (params->pairwise_suite && params->pairwise_suite != WPA_CIPHER_NONE) privacy = 1; if (!privacy) return 0; if (nla_put_flag(msg, NL80211_ATTR_PRIVACY)) return -ENOBUFS; nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); if (!nl_keys) return -ENOBUFS; for (i = 0; i < 4; i++) { if (!params->wep_key[i]) continue; nl_key = nla_nest_start(msg, i); if (!nl_key || nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i], params->wep_key[i]) || nla_put_u32(msg, NL80211_KEY_CIPHER, params->wep_key_len[i] == 5 ? RSN_CIPHER_SUITE_WEP40 : RSN_CIPHER_SUITE_WEP104) || nla_put_u8(msg, NL80211_KEY_IDX, i) || (i == params->wep_tx_keyidx && nla_put_flag(msg, NL80211_KEY_DEFAULT))) return -ENOBUFS; nla_nest_end(msg, nl_key); } nla_nest_end(msg, nl_keys); return 0; } int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, const u8 *addr, int cmd, u16 reason_code, int local_state_change, struct nl_sock *nl_connect) { int ret; struct nl_msg *msg; if (!(msg = nl80211_drv_msg(drv, 0, cmd)) || nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) || (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || (local_state_change && nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) { nlmsg_free(msg); return -1; } if (nl_connect) ret = send_and_recv(drv->global, nl_connect, msg, NULL, NULL, NULL, NULL); else ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: MLME command failed: reason=%u ret=%d (%s)", reason_code, ret, strerror(-ret)); } return ret; } static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, u16 reason_code, struct nl_sock *nl_connect) { int ret; int drv_associated = drv->associated; wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); nl80211_mark_disconnected(drv); /* Disconnect command doesn't need BSSID - it uses cached value */ ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, reason_code, 0, nl_connect); /* * For locally generated disconnect, supplicant already generates a * DEAUTH event, so ignore the event from NL80211. */ drv->ignore_next_local_disconnect = drv_associated && (ret == 0); return ret; } static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, const u8 *addr, u16 reason_code) { struct wpa_driver_nl80211_data *drv = bss->drv; int ret; int drv_associated = drv->associated; if (drv->nlmode == NL80211_IFTYPE_ADHOC) { nl80211_mark_disconnected(drv); return nl80211_leave_ibss(drv, 1); } if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { return wpa_driver_nl80211_disconnect(drv, reason_code, get_connect_handle(bss)); } wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", __func__, MAC2STR(addr), reason_code); nl80211_mark_disconnected(drv); ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, reason_code, 0, get_connect_handle(bss)); /* * For locally generated deauthenticate, supplicant already generates a * DEAUTH event, so ignore the event from NL80211. */ drv->ignore_next_local_deauth = drv_associated && (ret == 0); return ret; } static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, struct wpa_driver_auth_params *params) { int i; drv->auth_freq = params->freq; drv->auth_alg = params->auth_alg; drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; drv->auth_local_state_change = params->local_state_change; drv->auth_p2p = params->p2p; if (params->bssid) os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); else os_memset(drv->auth_bssid_, 0, ETH_ALEN); if (params->ssid) { os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); drv->auth_ssid_len = params->ssid_len; } else drv->auth_ssid_len = 0; os_free(drv->auth_ie); drv->auth_ie = NULL; drv->auth_ie_len = 0; if (params->ie) { drv->auth_ie = os_malloc(params->ie_len); if (drv->auth_ie) { os_memcpy(drv->auth_ie, params->ie, params->ie_len); drv->auth_ie_len = params->ie_len; } } os_free(drv->auth_data); drv->auth_data = NULL; drv->auth_data_len = 0; if (params->auth_data) { drv->auth_data = os_memdup(params->auth_data, params->auth_data_len); if (drv->auth_data) drv->auth_data_len = params->auth_data_len; } for (i = 0; i < 4; i++) { if (params->wep_key[i] && params->wep_key_len[i] && params->wep_key_len[i] <= 16) { os_memcpy(drv->auth_wep_key[i], params->wep_key[i], params->wep_key_len[i]); drv->auth_wep_key_len[i] = params->wep_key_len[i]; } else drv->auth_wep_key_len[i] = 0; } } static void nl80211_unmask_11b_rates(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates) return; /* * Looks like we failed to unmask 11b rates previously. This could * happen, e.g., if the interface was down at the point in time when a * P2P group was terminated. */ wpa_printf(MSG_DEBUG, "nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them", bss->ifname); nl80211_disable_11b_rates(drv, drv->ifindex, 0); } static enum nl80211_auth_type get_nl_auth_type(int wpa_auth_alg) { if (wpa_auth_alg & WPA_AUTH_ALG_OPEN) return NL80211_AUTHTYPE_OPEN_SYSTEM; if (wpa_auth_alg & WPA_AUTH_ALG_SHARED) return NL80211_AUTHTYPE_SHARED_KEY; if (wpa_auth_alg & WPA_AUTH_ALG_LEAP) return NL80211_AUTHTYPE_NETWORK_EAP; if (wpa_auth_alg & WPA_AUTH_ALG_FT) return NL80211_AUTHTYPE_FT; if (wpa_auth_alg & WPA_AUTH_ALG_SAE) return NL80211_AUTHTYPE_SAE; if (wpa_auth_alg & WPA_AUTH_ALG_FILS) return NL80211_AUTHTYPE_FILS_SK; if (wpa_auth_alg & WPA_AUTH_ALG_FILS_SK_PFS) return NL80211_AUTHTYPE_FILS_SK_PFS; return NL80211_AUTHTYPE_MAX; } static int wpa_driver_nl80211_authenticate( struct i802_bss *bss, struct wpa_driver_auth_params *params) { struct wpa_driver_nl80211_data *drv = bss->drv; int ret = -1, i; struct nl_msg *msg; enum nl80211_auth_type type; enum nl80211_iftype nlmode; int count = 0; int is_retry; struct wpa_driver_set_key_params p; nl80211_unmask_11b_rates(bss); is_retry = drv->retry_auth; drv->retry_auth = 0; drv->ignore_deauth_event = 0; nl80211_mark_disconnected(drv); os_memset(drv->auth_bssid, 0, ETH_ALEN); if (params->bssid) os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); else os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); /* FIX: IBSS mode */ nlmode = params->p2p ? NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; if (drv->nlmode != nlmode && wpa_driver_nl80211_set_mode(bss, nlmode) < 0) return -1; retry: wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", drv->ifindex); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE); if (!msg) goto fail; os_memset(&p, 0, sizeof(p)); p.ifname = bss->ifname; p.alg = WPA_ALG_WEP; for (i = 0; i < 4; i++) { if (!params->wep_key[i]) continue; p.key_idx = i; p.set_tx = i == params->wep_tx_keyidx; p.key = params->wep_key[i]; p.key_len = params->wep_key_len[i]; p.key_flag = i == params->wep_tx_keyidx ? KEY_FLAG_GROUP_RX_TX_DEFAULT : KEY_FLAG_GROUP_RX_TX; wpa_driver_nl80211_set_key(bss, &p); if (params->wep_tx_keyidx != i) continue; if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, params->wep_key[i], params->wep_key_len[i])) goto fail; } if (params->bssid) { wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, MAC2STR(params->bssid)); if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) goto fail; } if (params->freq) { wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq)) goto fail; } if (params->ssid) { wpa_printf(MSG_DEBUG, " * SSID=%s", wpa_ssid_txt(params->ssid, params->ssid_len)); if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) goto fail; } wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); if (params->ie && nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie)) goto fail; if (params->auth_data) { wpa_hexdump(MSG_DEBUG, " * auth_data", params->auth_data, params->auth_data_len); if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->auth_data_len, params->auth_data)) goto fail; } type = get_nl_auth_type(params->auth_alg); wpa_printf(MSG_DEBUG, " * Auth Type %d", type); if (type == NL80211_AUTHTYPE_MAX || nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) goto fail; if (params->local_state_change) { wpa_printf(MSG_DEBUG, " * Local state change only"); if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE)) goto fail; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: MLME command failed (auth): count=%d ret=%d (%s)", count, ret, strerror(-ret)); count++; if ((ret == -EALREADY || ret == -EEXIST) && count == 1 && params->bssid && !params->local_state_change) { /* * mac80211 does not currently accept new * authentication if we are already authenticated. As a * workaround, force deauthentication and try again. */ wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " "after forced deauthentication"); drv->ignore_deauth_event = 1; wpa_driver_nl80211_deauthenticate( bss, params->bssid, WLAN_REASON_PREV_AUTH_NOT_VALID); nlmsg_free(msg); goto retry; } if (ret == -ENOENT && params->freq && !is_retry) { /* * cfg80211 has likely expired the BSS entry even * though it was previously available in our internal * BSS table. To recover quickly, start a single * channel scan on the specified channel. */ struct wpa_driver_scan_params scan; int freqs[2]; os_memset(&scan, 0, sizeof(scan)); scan.num_ssids = 1; if (params->ssid) { scan.ssids[0].ssid = params->ssid; scan.ssids[0].ssid_len = params->ssid_len; } freqs[0] = params->freq; freqs[1] = 0; scan.freqs = freqs; wpa_printf(MSG_DEBUG, "nl80211: Trigger single " "channel scan to refresh cfg80211 BSS " "entry"); ret = wpa_driver_nl80211_scan(bss, &scan); if (ret == 0) { nl80211_copy_auth_params(drv, params); drv->scan_for_auth = 1; } } else if (is_retry) { /* * Need to indicate this with an event since the return * value from the retry is not delivered to core code. */ union wpa_event_data event; wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " "failed"); os_memset(&event, 0, sizeof(event)); os_memcpy(event.timeout_event.addr, drv->auth_bssid_, ETH_ALEN); wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, &event); } } else { wpa_printf(MSG_DEBUG, "nl80211: Authentication request send successfully"); } fail: nlmsg_free(msg); return ret; } int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv) { struct wpa_driver_auth_params params; struct i802_bss *bss = drv->first_bss; int i; wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); os_memset(¶ms, 0, sizeof(params)); params.freq = drv->auth_freq; params.auth_alg = drv->auth_alg; params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; params.local_state_change = drv->auth_local_state_change; params.p2p = drv->auth_p2p; if (!is_zero_ether_addr(drv->auth_bssid_)) params.bssid = drv->auth_bssid_; if (drv->auth_ssid_len) { params.ssid = drv->auth_ssid; params.ssid_len = drv->auth_ssid_len; } params.ie = drv->auth_ie; params.ie_len = drv->auth_ie_len; params.auth_data = drv->auth_data; params.auth_data_len = drv->auth_data_len; for (i = 0; i < 4; i++) { if (drv->auth_wep_key_len[i]) { params.wep_key[i] = drv->auth_wep_key[i]; params.wep_key_len[i] = drv->auth_wep_key_len[i]; } } drv->retry_auth = 1; return wpa_driver_nl80211_authenticate(bss, ¶ms); } static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, size_t data_len, int noack, unsigned int freq, int no_cck, int offchanok, unsigned int wait_time, const u16 *csa_offs, size_t csa_offs_len, int no_encrypt) { struct wpa_driver_nl80211_data *drv = bss->drv; struct ieee80211_mgmt *mgmt; int encrypt = !no_encrypt; u16 fc; int use_cookie = 1; int res; mgmt = (struct ieee80211_mgmt *) data; fc = le_to_host16(mgmt->frame_control); wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da=" MACSTR " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u no_encrypt=%d fc=0x%x (%s) nlmode=%d", MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time, no_encrypt, fc, fc2str(fc), drv->nlmode); if ((is_sta_interface(drv->nlmode) || drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { /* * The use of last_mgmt_freq is a bit of a hack, * but it works due to the single-threaded nature * of wpa_supplicant. */ if (freq == 0) { wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", drv->last_mgmt_freq); freq = drv->last_mgmt_freq; } wait_time = 0; use_cookie = 0; no_cck = 1; offchanok = 1; goto send_frame_cmd; } if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { if (freq == 0) { wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", bss->freq); freq = bss->freq; } if ((int) freq == bss->freq) wait_time = 0; goto send_frame_cmd; } if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { /* * Only one of the authentication frame types is encrypted. * In order for static WEP encryption to work properly (i.e., * to not encrypt the frame), we need to tell mac80211 about * the frames that must not be encrypted. */ u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) encrypt = 0; } if (is_sta_interface(drv->nlmode) && WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { if (freq == 0 && (drv->capa.flags & WPA_DRIVER_FLAGS_SAE) && !(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { freq = nl80211_get_assoc_freq(drv); wpa_printf(MSG_DEBUG, "nl80211: send_mlme - Use assoc_freq=%u for external auth", freq); } /* Allow off channel for PASN authentication */ if (data_len >= IEEE80211_HDRLEN + 2 && WPA_GET_LE16(data + IEEE80211_HDRLEN) == WLAN_AUTH_PASN && !offchanok) { wpa_printf(MSG_DEBUG, "nl80211: send_mlme: allow off channel for PASN"); offchanok = 1; } } if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) { freq = nl80211_get_assoc_freq(drv); wpa_printf(MSG_DEBUG, "nl80211: send_mlme - Use assoc_freq=%u for IBSS", freq); } if (freq == 0) { wpa_printf(MSG_DEBUG, "nl80211: send_mlme - Use bss->freq=%u", bss->freq); freq = bss->freq; } if (drv->use_monitor) { wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor", freq, bss->freq); return nl80211_send_monitor(drv, data, data_len, encrypt, noack); } if (noack || WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT || WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION) use_cookie = 0; send_frame_cmd: #ifdef CONFIG_TESTING_OPTIONS if (no_encrypt && !encrypt && !drv->use_monitor) { wpa_printf(MSG_DEBUG, "nl80211: Request to send an unencrypted frame - use a monitor interface for this"); if (nl80211_create_monitor_interface(drv) < 0) return -1; res = nl80211_send_monitor(drv, data, data_len, encrypt, noack); nl80211_remove_monitor_interface(drv); return res; } #endif /* CONFIG_TESTING_OPTIONS */ wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame_cmd"); res = nl80211_send_frame_cmd(bss, freq, wait_time, data, data_len, use_cookie, no_cck, noack, offchanok, csa_offs, csa_offs_len); return res; } static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates) { u8 rates[NL80211_MAX_SUPP_RATES]; u8 rates_len = 0; int i; if (!basic_rates) return 0; for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++) rates[rates_len++] = basic_rates[i] / 5; return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); } static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, int slot, int ht_opmode, int ap_isolate, const int *basic_rates) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) || (cts >= 0 && nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) || (preamble >= 0 && nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) || (slot >= 0 && nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) || (ht_opmode >= 0 && nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) || (ap_isolate >= 0 && nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) || nl80211_put_basic_rates(msg, basic_rates)) { nlmsg_free(msg); return -ENOBUFS; } return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } static int wpa_driver_nl80211_set_acl(void *priv, struct hostapd_acl_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nl_msg *acl; unsigned int i; int ret; if (!(drv->capa.max_acl_mac_addrs)) return -ENOTSUP; if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) return -ENOTSUP; wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); acl = nlmsg_alloc(); if (!acl) return -ENOMEM; for (i = 0; i < params->num_mac_acl; i++) { if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) { nlmsg_free(acl); return -ENOMEM; } } if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) || nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? NL80211_ACL_POLICY_DENY_UNLESS_LISTED : NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) || nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) { nlmsg_free(msg); nlmsg_free(acl); return -ENOMEM; } nlmsg_free(acl); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", ret, strerror(-ret)); } return ret; } static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int) { if (beacon_int > 0) { wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int); return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int); } return 0; } static int nl80211_put_dtim_period(struct nl_msg *msg, int dtim_period) { if (dtim_period > 0) { wpa_printf(MSG_DEBUG, " * dtim_period=%d", dtim_period); return nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period); } return 0; } #ifdef CONFIG_MESH static int nl80211_set_mesh_config(void *priv, struct wpa_driver_mesh_bss_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG); if (!msg) return -1; ret = nl80211_put_mesh_config(msg, params); if (ret < 0) { nlmsg_free(msg); return ret; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Mesh config set failed: %d (%s)", ret, strerror(-ret)); return ret; } return 0; } #endif /* CONFIG_MESH */ static int nl80211_put_beacon_rate(struct nl_msg *msg, u64 flags, u64 flags2, struct wpa_driver_ap_params *params) { struct nlattr *bands, *band; struct nl80211_txrate_vht vht_rate; struct nl80211_txrate_he he_rate; if (!params->freq || (params->beacon_rate == 0 && params->rate_type == BEACON_RATE_LEGACY)) return 0; bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); if (!bands) return -1; switch (params->freq->mode) { case HOSTAPD_MODE_IEEE80211B: case HOSTAPD_MODE_IEEE80211G: band = nla_nest_start(msg, NL80211_BAND_2GHZ); break; case HOSTAPD_MODE_IEEE80211A: if (is_6ghz_freq(params->freq->freq)) band = nla_nest_start(msg, NL80211_BAND_6GHZ); else band = nla_nest_start(msg, NL80211_BAND_5GHZ); break; case HOSTAPD_MODE_IEEE80211AD: band = nla_nest_start(msg, NL80211_BAND_60GHZ); break; default: return 0; } if (!band) return -1; os_memset(&vht_rate, 0, sizeof(vht_rate)); os_memset(&he_rate, 0, sizeof(he_rate)); switch (params->rate_type) { case BEACON_RATE_LEGACY: if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY)) { wpa_printf(MSG_INFO, "nl80211: Driver does not support setting Beacon frame rate (legacy)"); return -1; } if (nla_put_u8(msg, NL80211_TXRATE_LEGACY, (u8) params->beacon_rate / 5) || nla_put(msg, NL80211_TXRATE_HT, 0, NULL) || (params->freq->vht_enabled && nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate), &vht_rate))) return -1; wpa_printf(MSG_DEBUG, " * beacon_rate = legacy:%u (* 100 kbps)", params->beacon_rate); break; case BEACON_RATE_HT: if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_HT)) { wpa_printf(MSG_INFO, "nl80211: Driver does not support setting Beacon frame rate (HT)"); return -1; } if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL) || nla_put_u8(msg, NL80211_TXRATE_HT, params->beacon_rate) || (params->freq->vht_enabled && nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate), &vht_rate))) return -1; wpa_printf(MSG_DEBUG, " * beacon_rate = HT-MCS %u", params->beacon_rate); break; case BEACON_RATE_VHT: if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_VHT)) { wpa_printf(MSG_INFO, "nl80211: Driver does not support setting Beacon frame rate (VHT)"); return -1; } vht_rate.mcs[0] = BIT(params->beacon_rate); if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL)) return -1; if (nla_put(msg, NL80211_TXRATE_HT, 0, NULL)) return -1; if (nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate), &vht_rate)) return -1; wpa_printf(MSG_DEBUG, " * beacon_rate = VHT-MCS %u", params->beacon_rate); break; case BEACON_RATE_HE: if (!(flags2 & WPA_DRIVER_FLAGS2_BEACON_RATE_HE)) { wpa_printf(MSG_INFO, "nl80211: Driver does not support setting Beacon frame rate (HE)"); return -1; } he_rate.mcs[0] = BIT(params->beacon_rate); if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL) || nla_put(msg, NL80211_TXRATE_HT, 0, NULL) || nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate), &vht_rate) || nla_put(msg, NL80211_TXRATE_HE, sizeof(he_rate), &he_rate)) return -1; wpa_printf(MSG_DEBUG, " * beacon_rate = HE-MCS %u", params->beacon_rate); break; } nla_nest_end(msg, band); nla_nest_end(msg, bands); return 0; } static int nl80211_set_multicast_to_unicast(struct i802_bss *bss, int multicast_to_unicast) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_MULTICAST_TO_UNICAST); if (!msg || (multicast_to_unicast && nla_put_flag(msg, NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED))) { wpa_printf(MSG_ERROR, "nl80211: Failed to build NL80211_CMD_SET_MULTICAST_TO_UNICAST msg for %s", bss->ifname); nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); switch (ret) { case 0: wpa_printf(MSG_DEBUG, "nl80211: multicast to unicast %s on interface %s", multicast_to_unicast ? "enabled" : "disabled", bss->ifname); break; case -EOPNOTSUPP: if (!multicast_to_unicast) break; wpa_printf(MSG_INFO, "nl80211: multicast to unicast not supported on interface %s", bss->ifname); break; default: wpa_printf(MSG_ERROR, "nl80211: %s multicast to unicast failed with %d (%s) on interface %s", multicast_to_unicast ? "enabling" : "disabling", ret, strerror(-ret), bss->ifname); break; } return ret; } #ifdef CONFIG_SAE static int nl80211_put_sae_pwe(struct nl_msg *msg, int pwe) { u8 sae_pwe; wpa_printf(MSG_DEBUG, "nl802111: sae_pwe=%d", pwe); if (pwe == 0) sae_pwe = NL80211_SAE_PWE_HUNT_AND_PECK; else if (pwe == 1) sae_pwe = NL80211_SAE_PWE_HASH_TO_ELEMENT; else if (pwe == 2) sae_pwe = NL80211_SAE_PWE_BOTH; else if (pwe == 3) return 0; /* special test mode */ else return -1; if (nla_put_u8(msg, NL80211_ATTR_SAE_PWE, sae_pwe)) return -1; return 0; } #endif /* CONFIG_SAE */ #ifdef CONFIG_FILS static int nl80211_fils_discovery(struct i802_bss *bss, struct nl_msg *msg, struct wpa_driver_ap_params *params) { struct nlattr *attr; if (!bss->drv->fils_discovery) { wpa_printf(MSG_ERROR, "nl80211: Driver does not support FILS Discovery frame transmission for %s", bss->ifname); return -1; } attr = nla_nest_start(msg, NL80211_ATTR_FILS_DISCOVERY); if (!attr || nla_put_u32(msg, NL80211_FILS_DISCOVERY_ATTR_INT_MIN, params->fd_min_int) || nla_put_u32(msg, NL80211_FILS_DISCOVERY_ATTR_INT_MAX, params->fd_max_int) || (params->fd_frame_tmpl && nla_put(msg, NL80211_FILS_DISCOVERY_ATTR_TMPL, params->fd_frame_tmpl_len, params->fd_frame_tmpl))) return -1; nla_nest_end(msg, attr); return 0; } #endif /* CONFIG_FILS */ #ifdef CONFIG_IEEE80211AX static int nl80211_unsol_bcast_probe_resp(struct i802_bss *bss, struct nl_msg *msg, struct wpa_driver_ap_params *params) { struct nlattr *attr; if (!bss->drv->unsol_bcast_probe_resp) { wpa_printf(MSG_ERROR, "nl80211: Driver does not support unsolicited broadcast Probe Response frame transmission for %s", bss->ifname); return -1; } wpa_printf(MSG_DEBUG, "nl80211: Unsolicited broadcast Probe Response frame interval: %u", params->unsol_bcast_probe_resp_interval); attr = nla_nest_start(msg, NL80211_ATTR_UNSOL_BCAST_PROBE_RESP); if (!attr || nla_put_u32(msg, NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT, params->unsol_bcast_probe_resp_interval) || (params->unsol_bcast_probe_resp_tmpl && nla_put(msg, NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL, params->unsol_bcast_probe_resp_tmpl_len, params->unsol_bcast_probe_resp_tmpl))) return -1; nla_nest_end(msg, attr); return 0; } #endif /* CONFIG_IEEE80211AX */ static int wpa_driver_nl80211_set_ap(void *priv, struct wpa_driver_ap_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; u8 cmd = NL80211_CMD_NEW_BEACON; int ret = -ENOBUFS; int beacon_set; int num_suites; u32 suites[20], suite; u32 ver; #ifdef CONFIG_MESH struct wpa_driver_mesh_bss_params mesh_params; #endif /* CONFIG_MESH */ beacon_set = params->reenable ? 0 : bss->beacon_set; wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", beacon_set); if (beacon_set) cmd = NL80211_CMD_SET_BEACON; else if (!drv->device_ap_sme && !drv->use_monitor && !nl80211_get_wiphy_data_ap(bss)) return -ENOBUFS; wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", params->head, params->head_len); wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", params->tail, params->tail_len); wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex); wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); wpa_printf(MSG_DEBUG, "nl80211: beacon_rate=%u", params->beacon_rate); wpa_printf(MSG_DEBUG, "nl80211: rate_type=%d", params->rate_type); wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); wpa_printf(MSG_DEBUG, "nl80211: ssid=%s", wpa_ssid_txt(params->ssid, params->ssid_len)); if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head) || nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail) || nl80211_put_beacon_int(msg, params->beacon_int) || nl80211_put_beacon_rate(msg, drv->capa.flags, drv->capa.flags2, params) || nl80211_put_dtim_period(msg, params->dtim_period) || nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) goto fail; if (params->proberesp && params->proberesp_len) { wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", params->proberesp, params->proberesp_len); if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, params->proberesp)) goto fail; } switch (params->hide_ssid) { case NO_SSID_HIDING: wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, NL80211_HIDDEN_SSID_NOT_IN_USE)) goto fail; break; case HIDDEN_SSID_ZERO_LEN: wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, NL80211_HIDDEN_SSID_ZERO_LEN)) goto fail; break; case HIDDEN_SSID_ZERO_CONTENTS: wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID, NL80211_HIDDEN_SSID_ZERO_CONTENTS)) goto fail; break; } wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); if (params->privacy && nla_put_flag(msg, NL80211_ATTR_PRIVACY)) goto fail; wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { /* Leave out the attribute */ } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) { if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, NL80211_AUTHTYPE_SHARED_KEY)) goto fail; } else { if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, NL80211_AUTHTYPE_OPEN_SYSTEM)) goto fail; } wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); ver = 0; if (params->wpa_version & WPA_PROTO_WPA) ver |= NL80211_WPA_VERSION_1; if (params->wpa_version & WPA_PROTO_RSN) ver |= NL80211_WPA_VERSION_2; if (ver && nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) goto fail; wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", params->key_mgmt_suites); num_suites = wpa_key_mgmt_to_suites(params->key_mgmt_suites, suites, ARRAY_SIZE(suites)); if (num_suites > NL80211_MAX_NR_AKM_SUITES) wpa_printf(MSG_DEBUG, "nl80211: Not enough room for all AKM suites (num_suites=%d > NL80211_MAX_NR_AKM_SUITES)", num_suites); else if (num_suites && nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32), suites)) goto fail; if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA && (!params->pairwise_ciphers || params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) && (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) goto fail; if (drv->device_ap_sme && (params->key_mgmt_suites & WPA_KEY_MGMT_SAE) && nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT)) goto fail; wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", params->pairwise_ciphers); num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, suites, ARRAY_SIZE(suites)); if (num_suites && nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, num_suites * sizeof(u32), suites)) goto fail; wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", params->group_cipher); suite = wpa_cipher_to_cipher_suite(params->group_cipher); if (suite && nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite)) goto fail; if (params->beacon_ies) { wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", params->beacon_ies); if (nla_put(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), wpabuf_head(params->beacon_ies))) goto fail; } if (params->proberesp_ies) { wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", params->proberesp_ies); if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, wpabuf_len(params->proberesp_ies), wpabuf_head(params->proberesp_ies))) goto fail; } if (params->assocresp_ies) { wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", params->assocresp_ies); if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, wpabuf_len(params->assocresp_ies), wpabuf_head(params->assocresp_ies))) goto fail; } if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", params->ap_max_inactivity); if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, params->ap_max_inactivity)) goto fail; } #ifdef CONFIG_P2P if (params->p2p_go_ctwindow > 0) { if (drv->p2p_go_ctwindow_supported) { wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d", params->p2p_go_ctwindow); if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW, params->p2p_go_ctwindow)) goto fail; } else { wpa_printf(MSG_INFO, "nl80211: Driver does not support CTWindow configuration - ignore this parameter"); } } #endif /* CONFIG_P2P */ if (params->pbss) { wpa_printf(MSG_DEBUG, "nl80211: PBSS"); if (nla_put_flag(msg, NL80211_ATTR_PBSS)) goto fail; } if (params->ftm_responder) { struct nlattr *ftm; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_FTM_RESPONDER)) { ret = -ENOTSUP; goto fail; } ftm = nla_nest_start(msg, NL80211_ATTR_FTM_RESPONDER); if (!ftm || nla_put_flag(msg, NL80211_FTM_RESP_ATTR_ENABLED) || (params->lci && nla_put(msg, NL80211_FTM_RESP_ATTR_LCI, wpabuf_len(params->lci), wpabuf_head(params->lci))) || (params->civic && nla_put(msg, NL80211_FTM_RESP_ATTR_CIVICLOC, wpabuf_len(params->civic), wpabuf_head(params->civic)))) goto fail; nla_nest_end(msg, ftm); } #ifdef CONFIG_IEEE80211AX if (params->he_spr_ctrl) { struct nlattr *spr; spr = nla_nest_start(msg, NL80211_ATTR_HE_OBSS_PD); wpa_printf(MSG_DEBUG, "nl80211: he_spr_ctrl=0x%x", params->he_spr_ctrl); if (!spr || nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_SR_CTRL, params->he_spr_ctrl) || ((params->he_spr_ctrl & SPATIAL_REUSE_NON_SRG_OFFSET_PRESENT) && nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET, params->he_spr_non_srg_obss_pd_max_offset))) goto fail; if ((params->he_spr_ctrl & SPATIAL_REUSE_SRG_INFORMATION_PRESENT) && (nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET, params->he_spr_srg_obss_pd_min_offset) || nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET, params->he_spr_srg_obss_pd_max_offset) || nla_put(msg, NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP, sizeof(params->he_spr_bss_color_bitmap), params->he_spr_bss_color_bitmap) || nla_put(msg, NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP, sizeof(params->he_spr_partial_bssid_bitmap), params->he_spr_partial_bssid_bitmap))) goto fail; nla_nest_end(msg, spr); } if (params->freq && params->freq->he_enabled) { struct nlattr *bss_color; bss_color = nla_nest_start(msg, NL80211_ATTR_HE_BSS_COLOR); if (!bss_color || (params->he_bss_color_disabled && nla_put_flag(msg, NL80211_HE_BSS_COLOR_ATTR_DISABLED)) || (params->he_bss_color_partial && nla_put_flag(msg, NL80211_HE_BSS_COLOR_ATTR_PARTIAL)) || nla_put_u8(msg, NL80211_HE_BSS_COLOR_ATTR_COLOR, params->he_bss_color)) goto fail; nla_nest_end(msg, bss_color); } if (params->twt_responder) { wpa_printf(MSG_DEBUG, "nl80211: twt_responder=%d", params->twt_responder); if (nla_put_flag(msg, NL80211_ATTR_TWT_RESPONDER)) goto fail; } if (params->unsol_bcast_probe_resp_interval && nl80211_unsol_bcast_probe_resp(bss, msg, params) < 0) goto fail; #endif /* CONFIG_IEEE80211AX */ #ifdef CONFIG_SAE if (((params->key_mgmt_suites & WPA_KEY_MGMT_SAE) || (params->key_mgmt_suites & WPA_KEY_MGMT_FT_SAE)) && nl80211_put_sae_pwe(msg, params->sae_pwe) < 0) goto fail; #endif /* CONFIG_SAE */ #ifdef CONFIG_FILS if (params->fd_max_int && nl80211_fils_discovery(bss, msg, params) < 0) goto fail; #endif /* CONFIG_FILS */ ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(bss), 1, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", ret, strerror(-ret)); } else { bss->beacon_set = 1; nl80211_set_bss(bss, params->cts_protect, params->preamble, params->short_slot_time, params->ht_opmode, params->isolate, params->basic_rates); nl80211_set_multicast_to_unicast(bss, params->multicast_to_unicast); if (beacon_set && params->freq && params->freq->bandwidth != bss->bandwidth) { wpa_printf(MSG_DEBUG, "nl80211: Update BSS %s bandwidth: %d -> %d", bss->ifname, bss->bandwidth, params->freq->bandwidth); ret = nl80211_set_channel(bss, params->freq, 1); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Frequency set failed: %d (%s)", ret, strerror(-ret)); } else { wpa_printf(MSG_DEBUG, "nl80211: Frequency set succeeded for ht2040 coex"); bss->bandwidth = params->freq->bandwidth; } } else if (!beacon_set && params->freq) { /* * cfg80211 updates the driver on frequence change in AP * mode only at the point when beaconing is started, so * set the initial value here. */ bss->bandwidth = params->freq->bandwidth; } } #ifdef CONFIG_MESH if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) { os_memset(&mesh_params, 0, sizeof(mesh_params)); mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE; mesh_params.ht_opmode = params->ht_opmode; ret = nl80211_set_mesh_config(priv, &mesh_params); if (ret < 0) return ret; } #endif /* CONFIG_MESH */ return ret; fail: nlmsg_free(msg); return ret; } static int nl80211_put_freq_params(struct nl_msg *msg, const struct hostapd_freq_params *freq) { enum hostapd_hw_mode hw_mode; int is_24ghz; u8 channel; wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq)) return -ENOBUFS; wpa_printf(MSG_DEBUG, " * he_enabled=%d", freq->he_enabled); wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled); wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled); hw_mode = ieee80211_freq_to_chan(freq->freq, &channel); is_24ghz = hw_mode == HOSTAPD_MODE_IEEE80211G || hw_mode == HOSTAPD_MODE_IEEE80211B; if (freq->vht_enabled || (freq->he_enabled && !is_24ghz)) { enum nl80211_chan_width cw; wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth); switch (freq->bandwidth) { case 20: cw = NL80211_CHAN_WIDTH_20; break; case 40: cw = NL80211_CHAN_WIDTH_40; break; case 80: if (freq->center_freq2) cw = NL80211_CHAN_WIDTH_80P80; else cw = NL80211_CHAN_WIDTH_80; break; case 160: cw = NL80211_CHAN_WIDTH_160; break; default: return -EINVAL; } wpa_printf(MSG_DEBUG, " * channel_width=%d", cw); wpa_printf(MSG_DEBUG, " * center_freq1=%d", freq->center_freq1); wpa_printf(MSG_DEBUG, " * center_freq2=%d", freq->center_freq2); if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) || nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1) || (freq->center_freq2 && nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, freq->center_freq2))) return -ENOBUFS; } else if (freq->ht_enabled) { enum nl80211_channel_type ct; wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d", freq->sec_channel_offset); switch (freq->sec_channel_offset) { case -1: ct = NL80211_CHAN_HT40MINUS; break; case 1: ct = NL80211_CHAN_HT40PLUS; break; default: ct = NL80211_CHAN_HT20; break; } wpa_printf(MSG_DEBUG, " * channel_type=%d", ct); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct)) return -ENOBUFS; } else if (freq->edmg.channels && freq->edmg.bw_config) { wpa_printf(MSG_DEBUG, " * EDMG configuration: channels=0x%x bw_config=%d", freq->edmg.channels, freq->edmg.bw_config); if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS, freq->edmg.channels) || nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG, freq->edmg.bw_config)) return -1; } else { wpa_printf(MSG_DEBUG, " * channel_type=%d", NL80211_CHAN_NO_HT); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_NO_HT)) return -ENOBUFS; } return 0; } static int nl80211_set_channel(struct i802_bss *bss, struct hostapd_freq_params *freq, int set_chan) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, he_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled, freq->bandwidth, freq->center_freq1, freq->center_freq2); msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL : NL80211_CMD_SET_WIPHY); if (!msg || nl80211_put_freq_params(msg, freq) < 0) { nlmsg_free(msg); return -1; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret == 0) { bss->freq = freq->freq; return 0; } wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " "%d (%s)", freq->freq, ret, strerror(-ret)); return -1; } static u32 sta_flags_nl80211(int flags) { u32 f = 0; if (flags & WPA_STA_AUTHORIZED) f |= BIT(NL80211_STA_FLAG_AUTHORIZED); if (flags & WPA_STA_WMM) f |= BIT(NL80211_STA_FLAG_WME); if (flags & WPA_STA_SHORT_PREAMBLE) f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); if (flags & WPA_STA_MFP) f |= BIT(NL80211_STA_FLAG_MFP); if (flags & WPA_STA_TDLS_PEER) f |= BIT(NL80211_STA_FLAG_TDLS_PEER); if (flags & WPA_STA_AUTHENTICATED) f |= BIT(NL80211_STA_FLAG_AUTHENTICATED); if (flags & WPA_STA_ASSOCIATED) f |= BIT(NL80211_STA_FLAG_ASSOCIATED); return f; } #ifdef CONFIG_MESH static u32 sta_plink_state_nl80211(enum mesh_plink_state state) { switch (state) { case PLINK_IDLE: return NL80211_PLINK_LISTEN; case PLINK_OPN_SNT: return NL80211_PLINK_OPN_SNT; case PLINK_OPN_RCVD: return NL80211_PLINK_OPN_RCVD; case PLINK_CNF_RCVD: return NL80211_PLINK_CNF_RCVD; case PLINK_ESTAB: return NL80211_PLINK_ESTAB; case PLINK_HOLDING: return NL80211_PLINK_HOLDING; case PLINK_BLOCKED: return NL80211_PLINK_BLOCKED; default: wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d", state); } return -1; } #endif /* CONFIG_MESH */ static int wpa_driver_nl80211_sta_add(void *priv, struct hostapd_sta_add_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nl80211_sta_flag_update upd; int ret = -ENOBUFS; if ((params->flags & WPA_STA_TDLS_PEER) && !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) return -EOPNOTSUPP; wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, params->set ? "Set" : "Add", MAC2STR(params->addr)); msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION : NL80211_CMD_NEW_STATION); if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr)) goto fail; /* * Set the below properties only in one of the following cases: * 1. New station is added, already associated. * 2. Set WPA_STA_TDLS_PEER station. * 3. Set an already added unassociated station, if driver supports * full AP client state. (Set these properties after station became * associated will be rejected by the driver). */ if (!params->set || (params->flags & WPA_STA_TDLS_PEER) || (params->set && FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && (params->flags & WPA_STA_ASSOCIATED))) { wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, params->supp_rates_len); wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, params->supp_rates) || nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability)) goto fail; if (params->ht_capabilities) { wpa_hexdump(MSG_DEBUG, " * ht_capabilities", (u8 *) params->ht_capabilities, sizeof(*params->ht_capabilities)); if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sizeof(*params->ht_capabilities), params->ht_capabilities)) goto fail; } if (params->vht_capabilities) { wpa_hexdump(MSG_DEBUG, " * vht_capabilities", (u8 *) params->vht_capabilities, sizeof(*params->vht_capabilities)); if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sizeof(*params->vht_capabilities), params->vht_capabilities)) goto fail; } if (params->he_capab) { wpa_hexdump(MSG_DEBUG, " * he_capab", params->he_capab, params->he_capab_len); if (nla_put(msg, NL80211_ATTR_HE_CAPABILITY, params->he_capab_len, params->he_capab)) goto fail; } if (params->he_6ghz_capab) { wpa_hexdump(MSG_DEBUG, " * he_6ghz_capab", params->he_6ghz_capab, sizeof(*params->he_6ghz_capab)); if (nla_put(msg, NL80211_ATTR_HE_6GHZ_CAPABILITY, sizeof(*params->he_6ghz_capab), params->he_6ghz_capab)) goto fail; } if (params->ext_capab) { wpa_hexdump(MSG_DEBUG, " * ext_capab", params->ext_capab, params->ext_capab_len); if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY, params->ext_capab_len, params->ext_capab)) goto fail; } if (is_ap_interface(drv->nlmode) && nla_put_u8(msg, NL80211_ATTR_STA_SUPPORT_P2P_PS, params->support_p2p_ps ? NL80211_P2P_PS_SUPPORTED : NL80211_P2P_PS_UNSUPPORTED)) goto fail; } if (!params->set) { if (params->aid) { wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid)) goto fail; } else { /* * cfg80211 validates that AID is non-zero, so we have * to make this a non-zero value for the TDLS case where * a dummy STA entry is used for now and for a station * that is still not associated. */ wpa_printf(MSG_DEBUG, " * aid=1 (%s workaround)", (params->flags & WPA_STA_TDLS_PEER) ? "TDLS" : "UNASSOC_STA"); if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1)) goto fail; } wpa_printf(MSG_DEBUG, " * listen_interval=%u", params->listen_interval); if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, params->listen_interval)) goto fail; } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid)) goto fail; } else if (FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) && (params->flags & WPA_STA_ASSOCIATED)) { wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); wpa_printf(MSG_DEBUG, " * listen_interval=%u", params->listen_interval); if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid) || nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, params->listen_interval)) goto fail; } if (params->vht_opmode_enabled) { wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF, params->vht_opmode)) goto fail; } if (params->supp_channels) { wpa_hexdump(MSG_DEBUG, " * supported channels", params->supp_channels, params->supp_channels_len); if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, params->supp_channels_len, params->supp_channels)) goto fail; } if (params->supp_oper_classes) { wpa_hexdump(MSG_DEBUG, " * supported operating classes", params->supp_oper_classes, params->supp_oper_classes_len); if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, params->supp_oper_classes_len, params->supp_oper_classes)) goto fail; } os_memset(&upd, 0, sizeof(upd)); upd.set = sta_flags_nl80211(params->flags); upd.mask = upd.set | sta_flags_nl80211(params->flags_mask); /* * If the driver doesn't support full AP client state, ignore ASSOC/AUTH * flags, as nl80211 driver moves a new station, by default, into * associated state. * * On the other hand, if the driver supports that feature and the * station is added in unauthenticated state, set the * authenticated/associated bits in the mask to prevent moving this * station to associated state before it is actually associated. * * This is irrelevant for mesh mode where the station is added to the * driver as authenticated already, and ASSOCIATED isn't part of the * nl80211 API. */ if (!is_mesh_interface(drv->nlmode)) { if (!FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) { wpa_printf(MSG_DEBUG, "nl80211: Ignore ASSOC/AUTH flags since driver doesn't support full AP client state"); upd.mask &= ~(BIT(NL80211_STA_FLAG_ASSOCIATED) | BIT(NL80211_STA_FLAG_AUTHENTICATED)); } else if (!params->set && !(params->flags & WPA_STA_TDLS_PEER)) { if (!(params->flags & WPA_STA_AUTHENTICATED)) upd.mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED); if (!(params->flags & WPA_STA_ASSOCIATED)) upd.mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); } #ifdef CONFIG_MESH } else { if (params->plink_state == PLINK_ESTAB && params->peer_aid) { ret = nla_put_u16(msg, NL80211_ATTR_MESH_PEER_AID, params->peer_aid); if (ret) goto fail; } #endif /* CONFIG_MESH */ } wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", upd.set, upd.mask); if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) goto fail; #ifdef CONFIG_MESH if (params->plink_state && nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE, sta_plink_state_nl80211(params->plink_state))) goto fail; #endif /* CONFIG_MESH */ if ((!params->set || (params->flags & WPA_STA_TDLS_PEER) || FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) && (params->flags & WPA_STA_WMM)) { struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); if (!wme || nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, params->qosinfo & WMM_QOSINFO_STA_AC_MASK) || nla_put_u8(msg, NL80211_STA_WME_MAX_SP, (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & WMM_QOSINFO_STA_SP_MASK)) goto fail; nla_nest_end(msg, wme); } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " "result: %d (%s)", params->set ? "SET" : "NEW", ret, strerror(-ret)); if (ret == -EEXIST) ret = 0; fail: nlmsg_free(msg); return ret; } static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr) { #ifdef CONFIG_LIBNL3_ROUTE struct wpa_driver_nl80211_data *drv = bss->drv; struct rtnl_neigh *rn; struct nl_addr *nl_addr; int err; rn = rtnl_neigh_alloc(); if (!rn) return; rtnl_neigh_set_family(rn, AF_BRIDGE); rtnl_neigh_set_ifindex(rn, bss->ifindex); nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN); if (!nl_addr) { rtnl_neigh_put(rn); return; } rtnl_neigh_set_lladdr(rn, nl_addr); err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); if (err < 0) { wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for " MACSTR " ifindex=%d failed: %s", MAC2STR(addr), bss->ifindex, nl_geterror(err)); } else { wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for " MACSTR, MAC2STR(addr)); } nl_addr_put(nl_addr); rtnl_neigh_put(rn); #endif /* CONFIG_LIBNL3_ROUTE */ } static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr, int deauth, u16 reason_code) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || (deauth == 0 && nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, WLAN_FC_STYPE_DISASSOC)) || (deauth == 1 && nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE, WLAN_FC_STYPE_DEAUTH)) || (reason_code && nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR " --> %d (%s)", bss->ifname, MAC2STR(addr), ret, strerror(-ret)); if (drv->rtnl_sk) rtnl_neigh_delete_fdb_entry(bss, addr); if (ret == -ENOENT) return 0; return ret; } void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx) { struct nl_msg *msg; struct wpa_driver_nl80211_data *drv2; wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); /* stop listening for EAPOL on this interface */ dl_list_for_each(drv2, &drv->global->interfaces, struct wpa_driver_nl80211_data, list) { del_ifidx(drv2, ifidx, IFIDX_ANY); /* Remove all bridges learned for this iface */ del_ifidx(drv2, IFIDX_ANY, ifidx); } msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE); if (send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL) == 0) return; wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); } const char * nl80211_iftype_str(enum nl80211_iftype mode) { switch (mode) { case NL80211_IFTYPE_ADHOC: return "ADHOC"; case NL80211_IFTYPE_STATION: return "STATION"; case NL80211_IFTYPE_AP: return "AP"; case NL80211_IFTYPE_AP_VLAN: return "AP_VLAN"; case NL80211_IFTYPE_WDS: return "WDS"; case NL80211_IFTYPE_MONITOR: return "MONITOR"; case NL80211_IFTYPE_MESH_POINT: return "MESH_POINT"; case NL80211_IFTYPE_P2P_CLIENT: return "P2P_CLIENT"; case NL80211_IFTYPE_P2P_GO: return "P2P_GO"; case NL80211_IFTYPE_P2P_DEVICE: return "P2P_DEVICE"; case NL80211_IFTYPE_OCB: return "OCB"; case NL80211_IFTYPE_NAN: return "NAN"; default: return "unknown"; } } static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, const char *ifname, enum nl80211_iftype iftype, const u8 *addr, int wds, int (*handler)(struct nl_msg *, void *), void *arg) { struct nl_msg *msg; int ifidx; int ret = -ENOBUFS; wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", iftype, nl80211_iftype_str(iftype)); msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE); if (!msg || nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) || nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype)) goto fail; if (iftype == NL80211_IFTYPE_MONITOR) { struct nlattr *flags; flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); if (!flags || nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES)) goto fail; nla_nest_end(msg, flags); } else if (wds) { if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds)) goto fail; } /* * Tell cfg80211 that the interface belongs to the socket that created * it, and the interface should be deleted when the socket is closed. */ if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER)) goto fail; if ((addr && iftype == NL80211_IFTYPE_P2P_DEVICE) && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) goto fail; ret = send_and_recv_msgs(drv, msg, handler, arg, NULL, NULL); msg = NULL; if (ret) { fail: nlmsg_free(msg); wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", ifname, ret, strerror(-ret)); return ret; } if (iftype == NL80211_IFTYPE_P2P_DEVICE) return 0; ifidx = if_nametoindex(ifname); wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", ifname, ifidx); if (ifidx <= 0) return -1; /* * Some virtual interfaces need to process EAPOL packets and events on * the parent interface. This is used mainly with hostapd. */ if (drv->hostapd || iftype == NL80211_IFTYPE_AP_VLAN || iftype == NL80211_IFTYPE_WDS || iftype == NL80211_IFTYPE_MONITOR) { /* start listening for EAPOL on this interface */ add_ifidx(drv, ifidx, IFIDX_ANY); } if (addr && iftype != NL80211_IFTYPE_MONITOR && linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { nl80211_remove_iface(drv, ifidx); return -1; } return ifidx; } int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, const char *ifname, enum nl80211_iftype iftype, const u8 *addr, int wds, int (*handler)(struct nl_msg *, void *), void *arg, int use_existing) { int ret; ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, arg); /* if error occurred and interface exists already */ if (ret == -ENFILE && if_nametoindex(ifname)) { if (use_existing) { wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", ifname); if (addr && iftype != NL80211_IFTYPE_MONITOR && linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr) < 0 && (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 0) < 0 || linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr) < 0 || linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1) < 0)) return -1; return -ENFILE; } wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); /* Try to remove the interface that was already there. */ nl80211_remove_iface(drv, if_nametoindex(ifname)); /* Try to create the interface again */ ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, arg); } if (ret >= 0 && is_p2p_net_interface(iftype)) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s created for P2P - disable 11b rates", ifname); nl80211_disable_11b_rates(drv, ret, 1); } return ret; } static int nl80211_setup_ap(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", bss->ifname, drv->device_ap_sme, drv->use_monitor); /* * Disable Probe Request reporting unless we need it in this way for * devices that include the AP SME, in the other case (unless using * monitor iface) we'll get it through the nl_mgmt socket instead. */ if (!drv->device_ap_sme) wpa_driver_nl80211_probe_req_report(bss, 0); if (!drv->device_ap_sme && !drv->use_monitor) if (nl80211_mgmt_subscribe_ap(bss)) return -1; if (drv->device_ap_sme && !drv->use_monitor) if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) wpa_printf(MSG_DEBUG, "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it"); if (!drv->device_ap_sme && drv->use_monitor && nl80211_create_monitor_interface(drv) && !drv->device_ap_sme) return -1; if (drv->device_ap_sme && wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " "Probe Request frame reporting in AP mode"); /* Try to survive without this */ } return 0; } static void nl80211_teardown_ap(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", bss->ifname, drv->device_ap_sme, drv->use_monitor); if (drv->device_ap_sme) { wpa_driver_nl80211_probe_req_report(bss, 0); if (!drv->use_monitor) nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); } else if (drv->use_monitor) nl80211_remove_monitor_interface(drv); else nl80211_mgmt_unsubscribe(bss, "AP teardown"); nl80211_put_wiphy_data_ap(bss); bss->beacon_set = 0; } static int nl80211_tx_control_port(void *priv, const u8 *dest, u16 proto, const u8 *buf, size_t len, int no_encrypt) { struct nl80211_ack_ext_arg ext_arg; struct i802_bss *bss = priv; struct nl_msg *msg; u64 cookie = 0; int ret; wpa_printf(MSG_DEBUG, "nl80211: Send over control port dest=" MACSTR " proto=0x%04x len=%u no_encrypt=%d", MAC2STR(dest), proto, (unsigned int) len, no_encrypt); msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CONTROL_PORT_FRAME); if (!msg || nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dest) || nla_put(msg, NL80211_ATTR_FRAME, len, buf) || (no_encrypt && nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) { nlmsg_free(msg); return -ENOBUFS; } os_memset(&ext_arg, 0, sizeof(struct nl80211_ack_ext_arg)); ext_arg.ext_data = &cookie; ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL, ack_handler_cookie, &ext_arg); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: tx_control_port failed: ret=%d (%s)", ret, strerror(-ret)); } else { struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: tx_control_port cookie=0x%llx", (long long unsigned int) cookie); drv->eapol_tx_cookie = cookie; } return ret; } static int nl80211_send_eapol_data(struct i802_bss *bss, const u8 *addr, const u8 *data, size_t data_len) { struct sockaddr_ll ll; int ret; if (bss->drv->eapol_tx_sock < 0) { wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); return -1; } os_memset(&ll, 0, sizeof(ll)); ll.sll_family = AF_PACKET; ll.sll_ifindex = bss->ifindex; ll.sll_protocol = htons(ETH_P_PAE); ll.sll_halen = ETH_ALEN; os_memcpy(ll.sll_addr, addr, ETH_ALEN); ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, (struct sockaddr *) &ll, sizeof(ll)); if (ret < 0) wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", strerror(errno)); return ret; } static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; static int wpa_driver_nl80211_hapd_send_eapol( void *priv, const u8 *addr, const u8 *data, size_t data_len, int encrypt, const u8 *own_addr, u32 flags) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct ieee80211_hdr *hdr; size_t len; u8 *pos; int res; int qos = flags & WPA_STA_WMM; /* For now, disable EAPOL TX over control port in AP mode by default * since it does not provide TX status notifications. */ if (drv->control_port_ap && (drv->capa.flags & WPA_DRIVER_FLAGS_CONTROL_PORT)) return nl80211_tx_control_port(bss, addr, ETH_P_EAPOL, data, data_len, !encrypt); if (drv->device_ap_sme || !drv->use_monitor) return nl80211_send_eapol_data(bss, addr, data, data_len); len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + data_len; hdr = os_zalloc(len); if (hdr == NULL) { wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", (unsigned long) len); return -1; } hdr->frame_control = IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); if (encrypt) hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); if (qos) { hdr->frame_control |= host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); } memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); pos = (u8 *) (hdr + 1); if (qos) { /* Set highest priority in QoS header */ pos[0] = 7; pos[1] = 0; pos += 2; } memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); pos += sizeof(rfc1042_header); WPA_PUT_BE16(pos, ETH_P_PAE); pos += 2; memcpy(pos, data, data_len); res = nl80211_send_monitor(drv, hdr, len, encrypt, 0); if (res < 0) { wpa_printf(MSG_ERROR, "hapd_send_eapol - packet len: %lu - failed", (unsigned long) len); } os_free(hdr); return res; } static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, unsigned int total_flags, unsigned int flags_or, unsigned int flags_and) { struct i802_bss *bss = priv; struct nl_msg *msg; struct nlattr *flags; struct nl80211_sta_flag_update upd; wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d", bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and, !!(total_flags & WPA_STA_AUTHORIZED)); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) goto fail; /* * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This * can be removed eventually. */ flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); if (!flags || ((total_flags & WPA_STA_AUTHORIZED) && nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) || ((total_flags & WPA_STA_WMM) && nla_put_flag(msg, NL80211_STA_FLAG_WME)) || ((total_flags & WPA_STA_SHORT_PREAMBLE) && nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) || ((total_flags & WPA_STA_MFP) && nla_put_flag(msg, NL80211_STA_FLAG_MFP)) || ((total_flags & WPA_STA_TDLS_PEER) && nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER))) goto fail; nla_nest_end(msg, flags); os_memset(&upd, 0, sizeof(upd)); upd.mask = sta_flags_nl80211(flags_or | ~flags_and); upd.set = sta_flags_nl80211(flags_or); if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) goto fail; return send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); fail: nlmsg_free(msg); return -ENOBUFS; } static int driver_nl80211_sta_set_airtime_weight(void *priv, const u8 *addr, unsigned int weight) { struct i802_bss *bss = priv; struct nl_msg *msg; wpa_printf(MSG_DEBUG, "nl80211: Set STA airtime weight - ifname=%s addr=" MACSTR " weight=%u", bss->ifname, MAC2STR(addr), weight); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || nla_put_u16(msg, NL80211_ATTR_AIRTIME_WEIGHT, weight)) goto fail; return send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); fail: nlmsg_free(msg); return -ENOBUFS; } static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params) { enum nl80211_iftype nlmode, old_mode; if (params->p2p) { wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " "group (GO)"); nlmode = NL80211_IFTYPE_P2P_GO; } else nlmode = NL80211_IFTYPE_AP; old_mode = drv->nlmode; if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { nl80211_remove_monitor_interface(drv); return -1; } if (params->freq.freq && nl80211_set_channel(drv->first_bss, ¶ms->freq, 0)) { if (old_mode != nlmode) wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); nl80211_remove_monitor_interface(drv); return -1; } return 0; } static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv, int reset_mode) { struct nl_msg *msg; int ret; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS); ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(drv->first_bss), 1, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " "(%s)", ret, strerror(-ret)); } else { wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); } if (reset_mode && wpa_driver_nl80211_set_mode(drv->first_bss, NL80211_IFTYPE_STATION)) { wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " "station mode"); } return ret; } static int nl80211_ht_vht_overrides(struct nl_msg *msg, struct wpa_driver_associate_params *params) { if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT)) return -1; if (params->htcaps && params->htcaps_mask) { int sz = sizeof(struct ieee80211_ht_capabilities); wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz); wpa_hexdump(MSG_DEBUG, " * htcaps_mask", params->htcaps_mask, sz); if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps) || nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, params->htcaps_mask)) return -1; } #ifdef CONFIG_VHT_OVERRIDES if (params->disable_vht) { wpa_printf(MSG_DEBUG, " * VHT disabled"); if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT)) return -1; } if (params->vhtcaps && params->vhtcaps_mask) { int sz = sizeof(struct ieee80211_vht_capabilities); wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz); wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask", params->vhtcaps_mask, sz); if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps) || nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, params->vhtcaps_mask)) return -1; } #endif /* CONFIG_VHT_OVERRIDES */ return 0; } static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params) { struct nl_msg *msg; int ret = -1; int count = 0; wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, ¶ms->freq)) { wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " "IBSS mode"); return -1; } retry: if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) || params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) goto fail; wpa_printf(MSG_DEBUG, " * SSID=%s", wpa_ssid_txt(params->ssid, params->ssid_len)); if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) goto fail; os_memcpy(drv->ssid, params->ssid, params->ssid_len); drv->ssid_len = params->ssid_len; if (nl80211_put_freq_params(msg, ¶ms->freq) < 0 || nl80211_put_beacon_int(msg, params->beacon_int)) goto fail; ret = nl80211_set_conn_keys(params, msg); if (ret) goto fail; if (params->bssid && params->fixed_bssid) { wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, MAC2STR(params->bssid)); if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) goto fail; } if (params->fixed_freq) { wpa_printf(MSG_DEBUG, " * fixed_freq"); if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED)) goto fail; } if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || params->key_mgmt_suite == WPA_KEY_MGMT_PSK || params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { wpa_printf(MSG_DEBUG, " * control port"); if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) goto fail; } if (params->wpa_ie) { wpa_hexdump(MSG_DEBUG, " * Extra IEs for Beacon/Probe Response frames", params->wpa_ie, params->wpa_ie_len); if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie)) goto fail; } ret = nl80211_ht_vht_overrides(msg, params); if (ret < 0) goto fail; ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(drv->first_bss), 1, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", ret, strerror(-ret)); count++; if (ret == -EALREADY && count == 1) { wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " "forced leave"); nl80211_leave_ibss(drv, 0); nlmsg_free(msg); goto retry; } } else { wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); } fail: nlmsg_free(msg); return ret; } static int nl80211_put_fils_connect_params(struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params, struct nl_msg *msg) { if (params->fils_erp_username_len) { wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP EMSKname/username", params->fils_erp_username, params->fils_erp_username_len); if (nla_put(msg, NL80211_ATTR_FILS_ERP_USERNAME, params->fils_erp_username_len, params->fils_erp_username)) return -1; } if (params->fils_erp_realm_len) { wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP Realm", params->fils_erp_realm, params->fils_erp_realm_len); if (nla_put(msg, NL80211_ATTR_FILS_ERP_REALM, params->fils_erp_realm_len, params->fils_erp_realm)) return -1; } if (params->fils_erp_rrk_len) { wpa_printf(MSG_DEBUG, " * FILS ERP next seq %u", params->fils_erp_next_seq_num); if (nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM, params->fils_erp_next_seq_num)) return -1; wpa_printf(MSG_DEBUG, " * FILS ERP rRK (len=%lu)", (unsigned long) params->fils_erp_rrk_len); if (nla_put(msg, NL80211_ATTR_FILS_ERP_RRK, params->fils_erp_rrk_len, params->fils_erp_rrk)) return -1; } return 0; } static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params, struct nl_msg *msg) { if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER)) return -1; if (params->bssid) { wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, MAC2STR(params->bssid)); if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) return -1; } if (params->bssid_hint) { wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, MAC2STR(params->bssid_hint)); if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, params->bssid_hint)) return -1; } if (params->freq.freq) { wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq.freq)) return -1; drv->assoc_freq = params->freq.freq; } else drv->assoc_freq = 0; if (params->freq_hint) { wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, params->freq_hint)) return -1; } if (params->freq.edmg.channels && params->freq.edmg.bw_config) { wpa_printf(MSG_DEBUG, " * EDMG configuration: channels=0x%x bw_config=%d", params->freq.edmg.channels, params->freq.edmg.bw_config); if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS, params->freq.edmg.channels) || nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG, params->freq.edmg.bw_config)) return -1; } if (params->bg_scan_period >= 0) { wpa_printf(MSG_DEBUG, " * bg scan period=%d", params->bg_scan_period); if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD, params->bg_scan_period)) return -1; } if (params->ssid) { wpa_printf(MSG_DEBUG, " * SSID=%s", wpa_ssid_txt(params->ssid, params->ssid_len)); if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) return -1; if (params->ssid_len > sizeof(drv->ssid)) return -1; os_memcpy(drv->ssid, params->ssid, params->ssid_len); drv->ssid_len = params->ssid_len; } wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); if (params->wpa_ie && nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie)) return -1; if (params->wpa_proto) { enum nl80211_wpa_versions ver = 0; if (params->wpa_proto & WPA_PROTO_WPA) ver |= NL80211_WPA_VERSION_1; if (params->wpa_proto & WPA_PROTO_RSN) ver |= NL80211_WPA_VERSION_2; wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver)) return -1; } if (params->pairwise_suite != WPA_CIPHER_NONE) { u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher)) return -1; } if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { /* * This is likely to work even though many drivers do not * advertise support for operations without GTK. */ wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); } else if (params->group_suite != WPA_CIPHER_NONE) { u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher)) return -1; } if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || params->key_mgmt_suite == WPA_KEY_MGMT_PSK || params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || params->key_mgmt_suite == WPA_KEY_MGMT_CCKM || params->key_mgmt_suite == WPA_KEY_MGMT_OSEN || params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_SAE || params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE || params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B || params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192 || params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X_SHA384 || params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA384 || params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA384 || params->key_mgmt_suite == WPA_KEY_MGMT_OWE || params->key_mgmt_suite == WPA_KEY_MGMT_DPP) { int mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X; switch (params->key_mgmt_suite) { case WPA_KEY_MGMT_CCKM: mgmt = RSN_AUTH_KEY_MGMT_CCKM; break; case WPA_KEY_MGMT_IEEE8021X: mgmt = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X; break; case WPA_KEY_MGMT_FT_IEEE8021X: mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X; break; case WPA_KEY_MGMT_FT_PSK: mgmt = RSN_AUTH_KEY_MGMT_FT_PSK; break; case WPA_KEY_MGMT_IEEE8021X_SHA256: mgmt = RSN_AUTH_KEY_MGMT_802_1X_SHA256; break; case WPA_KEY_MGMT_PSK_SHA256: mgmt = RSN_AUTH_KEY_MGMT_PSK_SHA256; break; case WPA_KEY_MGMT_OSEN: mgmt = RSN_AUTH_KEY_MGMT_OSEN; break; case WPA_KEY_MGMT_SAE: mgmt = RSN_AUTH_KEY_MGMT_SAE; break; case WPA_KEY_MGMT_FT_SAE: mgmt = RSN_AUTH_KEY_MGMT_FT_SAE; break; case WPA_KEY_MGMT_IEEE8021X_SUITE_B: mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B; break; case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192: mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192; break; case WPA_KEY_MGMT_FT_IEEE8021X_SHA384: mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X_SHA384; break; case WPA_KEY_MGMT_FILS_SHA256: mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA256; break; case WPA_KEY_MGMT_FILS_SHA384: mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA384; break; case WPA_KEY_MGMT_FT_FILS_SHA256: mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA256; break; case WPA_KEY_MGMT_FT_FILS_SHA384: mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA384; break; case WPA_KEY_MGMT_OWE: mgmt = RSN_AUTH_KEY_MGMT_OWE; break; case WPA_KEY_MGMT_DPP: mgmt = RSN_AUTH_KEY_MGMT_DPP; break; case WPA_KEY_MGMT_PSK: default: mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X; break; } wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt); if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt)) return -1; } if (params->req_handshake_offload && (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X)) { wpa_printf(MSG_DEBUG, " * WANT_1X_4WAY_HS"); if (nla_put_flag(msg, NL80211_ATTR_WANT_1X_4WAY_HS)) return -1; } /* Add PSK in case of 4-way handshake offload */ if (params->psk && (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK)) { wpa_hexdump_key(MSG_DEBUG, " * PSK", params->psk, 32); if (nla_put(msg, NL80211_ATTR_PMK, 32, params->psk)) return -1; } if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT)) return -1; if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA && (params->pairwise_suite == WPA_CIPHER_NONE || params->pairwise_suite == WPA_CIPHER_WEP104 || params->pairwise_suite == WPA_CIPHER_WEP40) && (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) || nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) return -1; if (params->rrm_used) { u32 drv_rrm_flags = drv->capa.rrm_flags; if ((!((drv_rrm_flags & WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) && (drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) && !(drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) || nla_put_flag(msg, NL80211_ATTR_USE_RRM)) return -1; } if (nl80211_ht_vht_overrides(msg, params) < 0) return -1; if (params->p2p) wpa_printf(MSG_DEBUG, " * P2P group"); if (params->pbss) { wpa_printf(MSG_DEBUG, " * PBSS"); if (nla_put_flag(msg, NL80211_ATTR_PBSS)) return -1; } drv->connect_reassoc = 0; if (params->prev_bssid) { wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, MAC2STR(params->prev_bssid)); if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, params->prev_bssid)) return -1; drv->connect_reassoc = 1; } if ((params->auth_alg & WPA_AUTH_ALG_FILS) && nl80211_put_fils_connect_params(drv, params, msg) != 0) return -1; if ((params->key_mgmt_suite == WPA_KEY_MGMT_SAE || params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE) && (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) && nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT)) return -1; return 0; } static int wpa_driver_nl80211_try_connect( struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params, struct nl_sock *nl_connect) { struct nl_msg *msg; enum nl80211_auth_type type; int ret; int algs; #ifdef CONFIG_DRIVER_NL80211_QCA if (params->req_key_mgmt_offload && params->psk && (params->key_mgmt_suite == WPA_KEY_MGMT_PSK || params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 || params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK"); ret = issue_key_mgmt_set_key(drv, params->psk, 32); if (ret) return ret; } #endif /* CONFIG_DRIVER_NL80211_QCA */ wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT); if (!msg) return -1; ret = nl80211_connect_common(drv, params, msg); if (ret) goto fail; if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED && nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED)) goto fail; if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_OPTIONAL && (drv->capa.flags & WPA_DRIVER_FLAGS_MFP_OPTIONAL) && nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_OPTIONAL)) goto fail; #ifdef CONFIG_SAE if ((params->key_mgmt_suite == WPA_KEY_MGMT_SAE || params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE) && nl80211_put_sae_pwe(msg, params->sae_pwe) < 0) goto fail; #endif /* CONFIG_SAE */ algs = 0; if (params->auth_alg & WPA_AUTH_ALG_OPEN) algs++; if (params->auth_alg & WPA_AUTH_ALG_SHARED) algs++; if (params->auth_alg & WPA_AUTH_ALG_LEAP) algs++; if (params->auth_alg & WPA_AUTH_ALG_FILS) algs++; if (params->auth_alg & WPA_AUTH_ALG_FT) algs++; if (algs > 1) { wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " "selection"); goto skip_auth_type; } type = get_nl_auth_type(params->auth_alg); wpa_printf(MSG_DEBUG, " * Auth Type %d", type); if (type == NL80211_AUTHTYPE_MAX || nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) goto fail; skip_auth_type: ret = nl80211_set_conn_keys(params, msg); if (ret) goto fail; ret = send_and_recv_msgs_owner(drv, msg, nl_connect, 1, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " "(%s)", ret, strerror(-ret)); } else { #ifdef CONFIG_DRIVER_NL80211_QCA drv->roam_indication_done = false; #endif /* CONFIG_DRIVER_NL80211_QCA */ wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); } fail: nl80211_nlmsg_clear(msg); nlmsg_free(msg); return ret; } static int wpa_driver_nl80211_connect( struct wpa_driver_nl80211_data *drv, struct wpa_driver_associate_params *params, struct nl_sock *nl_connect) { int ret; /* Store the connection attempted bssid for future use */ if (params->bssid) os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); else os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect); if (ret == -EALREADY) { /* * cfg80211 does not currently accept new connections if * we are already connected. As a workaround, force * disconnection and try again. */ wpa_printf(MSG_DEBUG, "nl80211: Explicitly " "disconnecting before reassociation " "attempt"); if (wpa_driver_nl80211_disconnect( drv, WLAN_REASON_PREV_AUTH_NOT_VALID, nl_connect)) return -1; ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect); } return ret; } static int wpa_driver_nl80211_associate( void *priv, struct wpa_driver_associate_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; int ret = -1; struct nl_msg *msg; nl80211_unmask_11b_rates(bss); if (params->mode == IEEE80211_MODE_AP) return wpa_driver_nl80211_ap(drv, params); if (params->mode == IEEE80211_MODE_IBSS) return wpa_driver_nl80211_ibss(drv, params); if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { enum nl80211_iftype nlmode = params->p2p ? NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) return -1; if (params->key_mgmt_suite == WPA_KEY_MGMT_SAE || params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE) bss->use_nl_connect = 1; else bss->use_nl_connect = 0; return wpa_driver_nl80211_connect(drv, params, get_connect_handle(bss)); } nl80211_mark_disconnected(drv); wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", drv->ifindex); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE); if (!msg) return -1; ret = nl80211_connect_common(drv, params, msg); if (ret) goto fail; if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED && nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED)) goto fail; if (params->fils_kek) { wpa_printf(MSG_DEBUG, " * FILS KEK (len=%u)", (unsigned int) params->fils_kek_len); if (nla_put(msg, NL80211_ATTR_FILS_KEK, params->fils_kek_len, params->fils_kek)) goto fail; } if (params->fils_nonces) { wpa_hexdump(MSG_DEBUG, " * FILS nonces (for AAD)", params->fils_nonces, params->fils_nonces_len); if (nla_put(msg, NL80211_ATTR_FILS_NONCES, params->fils_nonces_len, params->fils_nonces)) goto fail; } ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(drv->first_bss), 1, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: MLME command failed (assoc): ret=%d (%s)", ret, strerror(-ret)); nl80211_dump_scan(drv); } else { wpa_printf(MSG_DEBUG, "nl80211: Association request send successfully"); } fail: nlmsg_free(msg); return ret; } static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, int ifindex, enum nl80211_iftype mode) { struct nl_msg *msg; int ret = -ENOBUFS; wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", ifindex, mode, nl80211_iftype_str(mode)); msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE); if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode)) goto fail; ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (!ret) return 0; fail: nlmsg_free(msg); wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" " %d (%s)", ifindex, mode, ret, strerror(-ret)); return ret; } static int wpa_driver_nl80211_set_mode_impl( struct i802_bss *bss, enum nl80211_iftype nlmode, struct hostapd_freq_params *desired_freq_params) { struct wpa_driver_nl80211_data *drv = bss->drv; int ret = -1; int i; int was_ap = is_ap_interface(drv->nlmode); int res; int mode_switch_res; if (TEST_FAIL()) return -1; mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); if (mode_switch_res && nlmode == nl80211_get_ifmode(bss)) mode_switch_res = 0; if (mode_switch_res == 0) { drv->nlmode = nlmode; ret = 0; goto done; } if (mode_switch_res == -ENODEV) return -1; if (nlmode == drv->nlmode) { wpa_printf(MSG_DEBUG, "nl80211: Interface already in " "requested mode - ignore error"); ret = 0; goto done; /* Already in the requested mode */ } /* mac80211 doesn't allow mode changes while the device is up, so * take the device down, try to set the mode again, and bring the * device back up. */ wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " "interface down"); for (i = 0; i < 10; i++) { res = i802_set_iface_flags(bss, 0); if (res == -EACCES || res == -ENODEV) break; if (res != 0) { wpa_printf(MSG_DEBUG, "nl80211: Failed to set " "interface down"); os_sleep(0, 100000); continue; } /* * Setting the mode will fail for some drivers if the phy is * on a frequency that the mode is disallowed in. */ if (desired_freq_params) { res = nl80211_set_channel(bss, desired_freq_params, 0); if (res) { wpa_printf(MSG_DEBUG, "nl80211: Failed to set frequency on interface"); } } if (i == 0 && was_ap && !is_ap_interface(nlmode) && bss->brname[0] && (bss->added_if_into_bridge || bss->already_in_bridge)) { wpa_printf(MSG_DEBUG, "nl80211: Remove AP interface %s temporarily from the bridge %s to allow its mode to be set to STATION", bss->ifname, bss->brname); if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, bss->ifname) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove interface %s from bridge %s: %s", bss->ifname, bss->brname, strerror(errno)); } /* Try to set the mode again while the interface is down */ mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode); if (mode_switch_res == -EBUSY) { wpa_printf(MSG_DEBUG, "nl80211: Delaying mode set while interface going down"); os_sleep(0, 100000); continue; } ret = mode_switch_res; break; } if (!ret) { wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " "interface is down"); drv->nlmode = nlmode; drv->ignore_if_down_event = 1; } /* Bring the interface back up */ res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); if (res != 0) { wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up after switching mode"); ret = -1; } done: if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " "from %d failed", nlmode, drv->nlmode); return ret; } if (is_p2p_net_interface(nlmode)) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s mode change to P2P - disable 11b rates", bss->ifname); nl80211_disable_11b_rates(drv, drv->ifindex, 1); } else if (drv->disabled_11b_rates) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates", bss->ifname); nl80211_disable_11b_rates(drv, drv->ifindex, 0); } if (is_ap_interface(nlmode)) { nl80211_mgmt_unsubscribe(bss, "start AP"); /* Setup additional AP mode functionality if needed */ if (nl80211_setup_ap(bss)) return -1; } else if (was_ap) { /* Remove additional AP mode functionality */ nl80211_teardown_ap(bss); } else { nl80211_mgmt_unsubscribe(bss, "mode change"); } if (is_mesh_interface(nlmode) && nl80211_mgmt_subscribe_mesh(bss)) return -1; if (!bss->in_deinit && !is_ap_interface(nlmode) && !is_mesh_interface(nlmode) && nl80211_mgmt_subscribe_non_ap(bss) < 0) wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " "frame processing - ignore for now"); return 0; } void nl80211_restore_ap_mode(struct i802_bss *bss) { struct wpa_driver_nl80211_data *drv = bss->drv; int was_ap = is_ap_interface(drv->nlmode); wpa_driver_nl80211_set_mode(bss, drv->ap_scan_as_station); if (!was_ap && is_ap_interface(drv->ap_scan_as_station) && bss->brname[0] && (bss->added_if_into_bridge || bss->already_in_bridge)) { wpa_printf(MSG_DEBUG, "nl80211: Add AP interface %s back into the bridge %s", bss->ifname, bss->brname); if (linux_br_add_if(drv->global->ioctl_sock, bss->brname, bss->ifname) < 0) { wpa_printf(MSG_WARNING, "nl80211: Failed to add interface %s into bridge %s: %s", bss->ifname, bss->brname, strerror(errno)); } } drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; } int wpa_driver_nl80211_set_mode(struct i802_bss *bss, enum nl80211_iftype nlmode) { return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL); } static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss, struct hostapd_freq_params *freq) { return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC, freq); } static int wpa_driver_nl80211_get_capa(void *priv, struct wpa_driver_capa *capa) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (!drv->has_capability) return -1; os_memcpy(capa, &drv->capa, sizeof(*capa)); if (drv->extended_capa && drv->extended_capa_mask) { capa->extended_capa = drv->extended_capa; capa->extended_capa_mask = drv->extended_capa_mask; capa->extended_capa_len = drv->extended_capa_len; } return 0; } static int wpa_driver_nl80211_set_operstate(void *priv, int state) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", bss->ifname, drv->operstate, state, state ? "UP" : "DORMANT"); drv->operstate = state; return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, state ? IF_OPER_UP : IF_OPER_DORMANT); } static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nl80211_sta_flag_update upd; int ret; if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); return 0; } wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); os_memset(&upd, 0, sizeof(upd)); upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); if (authorized) upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) || nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (!ret) return 0; wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", ret, strerror(-ret)); return ret; } /* Set kernel driver on given frequency (MHz) */ static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) { struct i802_bss *bss = priv; return nl80211_set_channel(bss, freq, 0); } static inline int min_int(int a, int b) { if (a < b) return a; return b; } static int get_key_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); /* * TODO: validate the key index and mac address! * Otherwise, there's a race condition as soon as * the kernel starts sending key notifications. */ if (tb[NL80211_ATTR_KEY_SEQ]) memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); nl80211_nlmsg_clear(msg); return NL_SKIP; } static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, int idx, u8 *seq) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0, NL80211_CMD_GET_KEY); if (!msg || (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) { nlmsg_free(msg); return -ENOBUFS; } memset(seq, 0, 6); return send_and_recv_msgs(drv, msg, get_key_handler, seq, NULL, NULL); } static int i802_set_rts(void *priv, int rts) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; u32 val; if (rts >= 2347 || rts == -1) val = (u32) -1; else val = rts; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (!ret) return 0; wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " "%d (%s)", rts, ret, strerror(-ret)); return ret; } static int i802_set_frag(void *priv, int frag) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; u32 val; if (frag >= 2346 || frag == -1) val = (u32) -1; else val = frag; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) || nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (!ret) return 0; wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " "%d: %d (%s)", frag, ret, strerror(-ret)); return ret; } static int i802_flush(void *priv) { struct i802_bss *bss = priv; struct nl_msg *msg; int res; wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", bss->ifname); /* * XXX: FIX! this needs to flush all VLANs too */ msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION); res = send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); if (res) { wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " "(%s)", res, strerror(-res)); } return res; } static void get_sta_tid_stats(struct hostap_sta_driver_data *data, struct nlattr *attr) { struct nlattr *tid_stats[NL80211_TID_STATS_MAX + 1], *tidattr; struct nlattr *txq_stats[NL80211_TXQ_STATS_MAX + 1]; static struct nla_policy txq_stats_policy[NL80211_TXQ_STATS_MAX + 1] = { [NL80211_TXQ_STATS_BACKLOG_BYTES] = { .type = NLA_U32 }, [NL80211_TXQ_STATS_BACKLOG_PACKETS] = { .type = NLA_U32 }, }; int rem; nla_for_each_nested(tidattr, attr, rem) { if (nla_parse_nested(tid_stats, NL80211_TID_STATS_MAX, tidattr, NULL) != 0 || !tid_stats[NL80211_TID_STATS_TXQ_STATS] || nla_parse_nested(txq_stats, NL80211_TXQ_STATS_MAX, tid_stats[NL80211_TID_STATS_TXQ_STATS], txq_stats_policy) != 0) continue; /* sum the backlogs over all TIDs for station */ if (txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES]) data->backlog_bytes += nla_get_u32( txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES]); if (txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS]) data->backlog_bytes += nla_get_u32( txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS]); } } static int get_sta_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct hostap_sta_driver_data *data = arg; struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, [NL80211_STA_INFO_RX_BYTES64] = { .type = NLA_U64 }, [NL80211_STA_INFO_TX_BYTES64] = { .type = NLA_U64 }, [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, [NL80211_STA_INFO_ACK_SIGNAL] = { .type = NLA_U8 }, [NL80211_STA_INFO_RX_DURATION] = { .type = NLA_U64 }, [NL80211_STA_INFO_TX_DURATION] = { .type = NLA_U64 }, }; struct nlattr *rate[NL80211_RATE_INFO_MAX + 1]; static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, [NL80211_RATE_INFO_BITRATE32] = { .type = NLA_U32 }, [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, [NL80211_RATE_INFO_VHT_MCS] = { .type = NLA_U8 }, [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, [NL80211_RATE_INFO_VHT_NSS] = { .type = NLA_U8 }, }; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); /* * TODO: validate the interface and mac address! * Otherwise, there's a race condition as soon as * the kernel starts sending station notifications. */ if (!tb[NL80211_ATTR_STA_INFO]) { wpa_printf(MSG_DEBUG, "sta stats missing!"); return NL_SKIP; } if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, tb[NL80211_ATTR_STA_INFO], stats_policy)) { wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); return NL_SKIP; } if (stats[NL80211_STA_INFO_INACTIVE_TIME]) data->inactive_msec = nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); /* For backwards compatibility, fetch the 32-bit counters first. */ if (stats[NL80211_STA_INFO_RX_BYTES]) data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); if (stats[NL80211_STA_INFO_TX_BYTES]) data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); if (stats[NL80211_STA_INFO_RX_BYTES64] && stats[NL80211_STA_INFO_TX_BYTES64]) { /* * The driver supports 64-bit counters, so use them to override * the 32-bit values. */ data->rx_bytes = nla_get_u64(stats[NL80211_STA_INFO_RX_BYTES64]); data->tx_bytes = nla_get_u64(stats[NL80211_STA_INFO_TX_BYTES64]); data->bytes_64bit = 1; } if (stats[NL80211_STA_INFO_RX_PACKETS]) data->rx_packets = nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); if (stats[NL80211_STA_INFO_TX_PACKETS]) data->tx_packets = nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); if (stats[NL80211_STA_INFO_RX_DURATION]) data->rx_airtime = nla_get_u64(stats[NL80211_STA_INFO_RX_DURATION]); if (stats[NL80211_STA_INFO_TX_DURATION]) data->tx_airtime = nla_get_u64(stats[NL80211_STA_INFO_TX_DURATION]); if (stats[NL80211_STA_INFO_TX_FAILED]) data->tx_retry_failed = nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); if (stats[NL80211_STA_INFO_SIGNAL]) data->signal = nla_get_u8(stats[NL80211_STA_INFO_SIGNAL]); if (stats[NL80211_STA_INFO_ACK_SIGNAL]) { data->last_ack_rssi = nla_get_u8(stats[NL80211_STA_INFO_ACK_SIGNAL]); data->flags |= STA_DRV_DATA_LAST_ACK_RSSI; } if (stats[NL80211_STA_INFO_TX_BITRATE] && nla_parse_nested(rate, NL80211_RATE_INFO_MAX, stats[NL80211_STA_INFO_TX_BITRATE], rate_policy) == 0) { if (rate[NL80211_RATE_INFO_BITRATE32]) data->current_tx_rate = nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]); else if (rate[NL80211_RATE_INFO_BITRATE]) data->current_tx_rate = nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]); if (rate[NL80211_RATE_INFO_MCS]) { data->tx_mcs = nla_get_u8(rate[NL80211_RATE_INFO_MCS]); data->flags |= STA_DRV_DATA_TX_MCS; } if (rate[NL80211_RATE_INFO_VHT_MCS]) { data->tx_vhtmcs = nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]); data->flags |= STA_DRV_DATA_TX_VHT_MCS; } if (rate[NL80211_RATE_INFO_SHORT_GI]) data->flags |= STA_DRV_DATA_TX_SHORT_GI; if (rate[NL80211_RATE_INFO_VHT_NSS]) { data->tx_vht_nss = nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]); data->flags |= STA_DRV_DATA_TX_VHT_NSS; } } if (stats[NL80211_STA_INFO_RX_BITRATE] && nla_parse_nested(rate, NL80211_RATE_INFO_MAX, stats[NL80211_STA_INFO_RX_BITRATE], rate_policy) == 0) { if (rate[NL80211_RATE_INFO_BITRATE32]) data->current_rx_rate = nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]); else if (rate[NL80211_RATE_INFO_BITRATE]) data->current_rx_rate = nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]); if (rate[NL80211_RATE_INFO_MCS]) { data->rx_mcs = nla_get_u8(rate[NL80211_RATE_INFO_MCS]); data->flags |= STA_DRV_DATA_RX_MCS; } if (rate[NL80211_RATE_INFO_VHT_MCS]) { data->rx_vhtmcs = nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]); data->flags |= STA_DRV_DATA_RX_VHT_MCS; } if (rate[NL80211_RATE_INFO_SHORT_GI]) data->flags |= STA_DRV_DATA_RX_SHORT_GI; if (rate[NL80211_RATE_INFO_VHT_NSS]) { data->rx_vht_nss = nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]); data->flags |= STA_DRV_DATA_RX_VHT_NSS; } } if (stats[NL80211_STA_INFO_TID_STATS]) get_sta_tid_stats(data, stats[NL80211_STA_INFO_TID_STATS]); return NL_SKIP; } static int i802_read_sta_data(struct i802_bss *bss, struct hostap_sta_driver_data *data, const u8 *addr) { struct nl_msg *msg; if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { nlmsg_free(msg); return -ENOBUFS; } return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data, NULL, NULL); } static int i802_set_tx_queue_params(void *priv, int queue, int aifs, int cw_min, int cw_max, int burst_time) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *txq, *params; int res; msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY); if (!msg) return -1; txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); if (!txq) goto fail; /* We are only sending parameters for a single TXQ at a time */ params = nla_nest_start(msg, 1); if (!params) goto fail; switch (queue) { case 0: if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO)) goto fail; break; case 1: if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI)) goto fail; break; case 2: if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE)) goto fail; break; case 3: if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK)) goto fail; break; } /* Burst time is configured in units of 0.1 msec and TXOP parameter in * 32 usec, so need to convert the value here. */ if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32) || nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) || nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) || nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs)) goto fail; nla_nest_end(msg, params); nla_nest_end(msg, txq); res = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: TX queue param set: queue=%d aifs=%d cw_min=%d cw_max=%d burst_time=%d --> res=%d", queue, aifs, cw_min, cw_max, burst_time, res); if (res == 0) return 0; msg = NULL; fail: nlmsg_free(msg); return -1; } static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, const char *ifname, int vlan_id) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR ", ifname=%s[%d], vlan_id=%d)", bss->ifname, if_nametoindex(bss->ifname), MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || (vlan_id && (drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD) && nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id)) || nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret < 0) { wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", MAC2STR(addr), ifname, vlan_id, ret, strerror(-ret)); } return ret; } static int i802_get_inact_sec(void *priv, const u8 *addr) { struct hostap_sta_driver_data data; int ret; os_memset(&data, 0, sizeof(data)); data.inactive_msec = (unsigned long) -1; ret = i802_read_sta_data(priv, &data, addr); if (ret == -ENOENT) return -ENOENT; if (ret || data.inactive_msec == (unsigned long) -1) return -1; return data.inactive_msec / 1000; } static int i802_sta_clear_stats(void *priv, const u8 *addr) { #if 0 /* TODO */ #endif return 0; } static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, u16 reason) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct ieee80211_mgmt mgmt; u8 channel; if (ieee80211_freq_to_chan(bss->freq, &channel) == HOSTAPD_MODE_IEEE80211AD) { /* Deauthentication is not used in DMG/IEEE 802.11ad; * disassociate the STA instead. */ return i802_sta_disassoc(priv, own_addr, addr, reason); } if (is_mesh_interface(drv->nlmode)) return -1; if (drv->device_ap_sme) return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason); memset(&mgmt, 0, sizeof(mgmt)); mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); memcpy(mgmt.da, addr, ETH_ALEN); memcpy(mgmt.sa, own_addr, ETH_ALEN); memcpy(mgmt.bssid, own_addr, ETH_ALEN); mgmt.u.deauth.reason_code = host_to_le16(reason); return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, IEEE80211_HDRLEN + sizeof(mgmt.u.deauth), 0, 0, 0, 0, 0, NULL, 0, 0); } static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, u16 reason) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct ieee80211_mgmt mgmt; if (is_mesh_interface(drv->nlmode)) return -1; if (drv->device_ap_sme) return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason); memset(&mgmt, 0, sizeof(mgmt)); mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DISASSOC); memcpy(mgmt.da, addr, ETH_ALEN); memcpy(mgmt.sa, own_addr, ETH_ALEN); memcpy(mgmt.bssid, own_addr, ETH_ALEN); mgmt.u.disassoc.reason_code = host_to_le16(reason); return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, IEEE80211_HDRLEN + sizeof(mgmt.u.disassoc), 0, 0, 0, 0, 0, NULL, 0, 0); } static void dump_ifidx(struct wpa_driver_nl80211_data *drv) { char buf[200], *pos, *end; int i, res; pos = buf; end = pos + sizeof(buf); for (i = 0; i < drv->num_if_indices; i++) { if (!drv->if_indices[i].ifindex) continue; res = os_snprintf(pos, end - pos, " %d(%d)", drv->if_indices[i].ifindex, drv->if_indices[i].reason); if (os_snprintf_error(end - pos, res)) break; pos += res; } *pos = '\0'; wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s", drv->num_if_indices, buf); } static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason) { int i; struct drv_nl80211_if_info *old; wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d (ifidx_reason %d)", ifidx, ifidx_reason); if (have_ifidx(drv, ifidx, ifidx_reason)) { wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list", ifidx); return; } for (i = 0; i < drv->num_if_indices; i++) { if (drv->if_indices[i].ifindex == 0) { drv->if_indices[i].ifindex = ifidx; drv->if_indices[i].reason = ifidx_reason; dump_ifidx(drv); return; } } if (drv->if_indices != drv->default_if_indices) old = drv->if_indices; else old = NULL; drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, sizeof(*old)); if (!drv->if_indices) { if (!old) drv->if_indices = drv->default_if_indices; else drv->if_indices = old; wpa_printf(MSG_ERROR, "Failed to reallocate memory for " "interfaces"); wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); return; } if (!old) os_memcpy(drv->if_indices, drv->default_if_indices, sizeof(drv->default_if_indices)); drv->if_indices[drv->num_if_indices].ifindex = ifidx; drv->if_indices[drv->num_if_indices].reason = ifidx_reason; drv->num_if_indices++; dump_ifidx(drv); } static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason) { int i; for (i = 0; i < drv->num_if_indices; i++) { if ((drv->if_indices[i].ifindex == ifidx || ifidx == IFIDX_ANY) && (drv->if_indices[i].reason == ifidx_reason || ifidx_reason == IFIDX_ANY)) { drv->if_indices[i].ifindex = 0; drv->if_indices[i].reason = 0; break; } } dump_ifidx(drv); } static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx, int ifidx_reason) { int i; for (i = 0; i < drv->num_if_indices; i++) if (drv->if_indices[i].ifindex == ifidx && (drv->if_indices[i].reason == ifidx_reason || ifidx_reason == IFIDX_ANY)) return 1; return 0; } static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, const char *bridge_ifname, char *ifname_wds) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; char name[IFNAMSIZ + 1]; union wpa_event_data event; int ret; ret = os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); if (ret >= (int) sizeof(name)) wpa_printf(MSG_WARNING, "nl80211: WDS interface name was truncated"); else if (ret < 0) return ret; if (ifname_wds) os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); if (val) { if (!if_nametoindex(name)) { if (nl80211_create_iface(drv, name, NL80211_IFTYPE_AP_VLAN, bss->addr, 1, NULL, NULL, 0) < 0) return -1; if (bridge_ifname && linux_br_add_if(drv->global->ioctl_sock, bridge_ifname, name) < 0) return -1; os_memset(&event, 0, sizeof(event)); event.wds_sta_interface.sta_addr = addr; event.wds_sta_interface.ifname = name; event.wds_sta_interface.istatus = INTERFACE_ADDED; wpa_supplicant_event(bss->ctx, EVENT_WDS_STA_INTERFACE_STATUS, &event); } if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " "interface %s up", name); } return i802_set_sta_vlan(priv, addr, name, 0); } else { if (bridge_ifname && linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, name) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove interface %s from bridge %s: %s", name, bridge_ifname, strerror(errno)); i802_set_sta_vlan(priv, addr, bss->ifname, 0); nl80211_remove_iface(drv, if_nametoindex(name)); os_memset(&event, 0, sizeof(event)); event.wds_sta_interface.sta_addr = addr; event.wds_sta_interface.ifname = name; event.wds_sta_interface.istatus = INTERFACE_REMOVED; wpa_supplicant_event(bss->ctx, EVENT_WDS_STA_INTERFACE_STATUS, &event); return 0; } } static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) { struct wpa_driver_nl80211_data *drv = eloop_ctx; struct sockaddr_ll lladdr; unsigned char buf[3000]; int len; socklen_t fromlen = sizeof(lladdr); len = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *)&lladdr, &fromlen); if (len < 0) { wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", strerror(errno)); return; } if (have_ifidx(drv, lladdr.sll_ifindex, IFIDX_ANY)) drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); } static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, struct i802_bss *bss, const char *brname, const char *ifname) { int br_ifindex; char in_br[IFNAMSIZ]; os_strlcpy(bss->brname, brname, IFNAMSIZ); br_ifindex = if_nametoindex(brname); if (br_ifindex == 0) { /* * Bridge was configured, but the bridge device does * not exist. Try to add it now. */ if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { wpa_printf(MSG_ERROR, "nl80211: Failed to add the " "bridge interface %s: %s", brname, strerror(errno)); return -1; } bss->added_bridge = 1; br_ifindex = if_nametoindex(brname); add_ifidx(drv, br_ifindex, drv->ifindex); } bss->br_ifindex = br_ifindex; if (linux_br_get(in_br, ifname) == 0) { if (os_strcmp(in_br, brname) == 0) { bss->already_in_bridge = 1; return 0; /* already in the bridge */ } wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " "bridge %s", ifname, in_br); if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < 0) { wpa_printf(MSG_ERROR, "nl80211: Failed to " "remove interface %s from bridge " "%s: %s", ifname, in_br, strerror(errno)); return -1; } } wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", ifname, brname); if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { wpa_printf(MSG_WARNING, "nl80211: Failed to add interface %s into bridge %s: %s", ifname, brname, strerror(errno)); /* Try to continue without the interface being in a bridge. This * may be needed for some cases, e.g., with Open vSwitch, where * an external component will need to handle bridge * configuration. */ return 0; } bss->added_if_into_bridge = 1; return 0; } static void *i802_init(struct hostapd_data *hapd, struct wpa_init_params *params) { struct wpa_driver_nl80211_data *drv; struct i802_bss *bss; size_t i; char master_ifname[IFNAMSIZ]; int ifindex, br_ifindex = 0; int br_added = 0; bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, params->global_priv, 1, params->bssid, params->driver_params); if (bss == NULL) return NULL; drv = bss->drv; if (linux_br_get(master_ifname, params->ifname) == 0) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", params->ifname, master_ifname); br_ifindex = if_nametoindex(master_ifname); os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); } else if ((params->num_bridge == 0 || !params->bridge[0]) && linux_master_get(master_ifname, params->ifname) == 0) { wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s", params->ifname, master_ifname); /* start listening for EAPOL on the master interface */ add_ifidx(drv, if_nametoindex(master_ifname), drv->ifindex); /* check if master itself is under bridge */ if (linux_br_get(master_ifname, master_ifname) == 0) { wpa_printf(MSG_DEBUG, "nl80211: which is in bridge %s", master_ifname); br_ifindex = if_nametoindex(master_ifname); os_strlcpy(bss->brname, master_ifname, IFNAMSIZ); } } else { master_ifname[0] = '\0'; } bss->br_ifindex = br_ifindex; for (i = 0; i < params->num_bridge; i++) { if (params->bridge[i]) { ifindex = if_nametoindex(params->bridge[i]); if (ifindex) add_ifidx(drv, ifindex, drv->ifindex); if (ifindex == br_ifindex) br_added = 1; } } /* start listening for EAPOL on the default AP interface */ add_ifidx(drv, drv->ifindex, IFIDX_ANY); if (params->num_bridge && params->bridge[0]) { if (i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) goto failed; if (os_strcmp(params->bridge[0], master_ifname) != 0) br_added = 1; } if (!br_added && br_ifindex && (params->num_bridge == 0 || !params->bridge[0])) add_ifidx(drv, br_ifindex, drv->ifindex); #ifdef CONFIG_LIBNL3_ROUTE if (bss->added_if_into_bridge || bss->already_in_bridge) { int err; drv->rtnl_sk = nl_socket_alloc(); if (drv->rtnl_sk == NULL) { wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock"); goto failed; } err = nl_connect(drv->rtnl_sk, NETLINK_ROUTE); if (err) { wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s", nl_geterror(err)); goto failed; } } #endif /* CONFIG_LIBNL3_ROUTE */ if (drv->capa.flags2 & WPA_DRIVER_FLAGS2_CONTROL_PORT_RX) { wpa_printf(MSG_DEBUG, "nl80211: Do not open EAPOL RX socket - using control port for RX"); goto skip_eapol_sock; } drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); if (drv->eapol_sock < 0) { wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", strerror(errno)); goto failed; } if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) { wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); goto failed; } skip_eapol_sock: if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, params->own_addr)) goto failed; os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN); memcpy(bss->addr, params->own_addr, ETH_ALEN); return bss; failed: wpa_driver_nl80211_deinit(bss); return NULL; } static void i802_deinit(void *priv) { struct i802_bss *bss = priv; wpa_driver_nl80211_deinit(bss); } static enum nl80211_iftype wpa_driver_nl80211_if_type( enum wpa_driver_if_type type) { switch (type) { case WPA_IF_STATION: return NL80211_IFTYPE_STATION; case WPA_IF_P2P_CLIENT: case WPA_IF_P2P_GROUP: return NL80211_IFTYPE_P2P_CLIENT; case WPA_IF_AP_VLAN: return NL80211_IFTYPE_AP_VLAN; case WPA_IF_AP_BSS: return NL80211_IFTYPE_AP; case WPA_IF_P2P_GO: return NL80211_IFTYPE_P2P_GO; case WPA_IF_P2P_DEVICE: return NL80211_IFTYPE_P2P_DEVICE; case WPA_IF_MESH: return NL80211_IFTYPE_MESH_POINT; default: return -1; } } static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) { struct wpa_driver_nl80211_data *drv; dl_list_for_each(drv, &global->interfaces, struct wpa_driver_nl80211_data, list) { if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) return 1; } return 0; } static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr) { unsigned int idx; if (!drv->global) return -1; os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); for (idx = 0; idx < 64; idx++) { new_addr[0] = drv->first_bss->addr[0] | 0x02; new_addr[0] ^= idx << 2; if (!nl80211_addr_in_use(drv->global, new_addr)) break; } if (idx == 64) return -1; wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address " MACSTR, MAC2STR(new_addr)); return 0; } struct wdev_info { u64 wdev_id; int wdev_id_set; u8 macaddr[ETH_ALEN]; }; static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) { struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct wdev_info *wi = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (tb[NL80211_ATTR_WDEV]) { wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); wi->wdev_id_set = 1; } if (tb[NL80211_ATTR_MAC]) os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); return NL_SKIP; } static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, const char *ifname, const u8 *addr, void *bss_ctx, void **drv_priv, char *force_ifname, u8 *if_addr, const char *bridge, int use_existing, int setup_ap) { enum nl80211_iftype nlmode; struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; int ifidx; int added = 1; if (addr) os_memcpy(if_addr, addr, ETH_ALEN); nlmode = wpa_driver_nl80211_if_type(type); if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { struct wdev_info p2pdev_info; os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 0, nl80211_wdev_handler, &p2pdev_info, use_existing); if (!p2pdev_info.wdev_id_set || ifidx != 0) { wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", ifname); return -1; } drv->global->if_add_wdevid = p2pdev_info.wdev_id; drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; if (!is_zero_ether_addr(p2pdev_info.macaddr)) os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", ifname, (long long unsigned int) p2pdev_info.wdev_id); } else { ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, 0, NULL, NULL, use_existing); if (use_existing && ifidx == -ENFILE) { added = 0; ifidx = if_nametoindex(ifname); } else if (ifidx < 0) { return -1; } } if (!addr) { if (nlmode == NL80211_IFTYPE_P2P_DEVICE) os_memcpy(if_addr, bss->addr, ETH_ALEN); else if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, if_addr) < 0) { if (added) nl80211_remove_iface(drv, ifidx); return -1; } } if (!addr && (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || type == WPA_IF_P2P_GO || type == WPA_IF_MESH || type == WPA_IF_STATION)) { /* Enforce unique address */ u8 new_addr[ETH_ALEN]; if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, new_addr) < 0) { if (added) nl80211_remove_iface(drv, ifidx); return -1; } if (nl80211_addr_in_use(drv->global, new_addr)) { wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " "for interface %s type %d", ifname, type); if (nl80211_vif_addr(drv, new_addr) < 0) { if (added) nl80211_remove_iface(drv, ifidx); return -1; } if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, new_addr) < 0) { if (added) nl80211_remove_iface(drv, ifidx); return -1; } } os_memcpy(if_addr, new_addr, ETH_ALEN); } if (type == WPA_IF_AP_BSS && setup_ap) { struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); if (new_bss == NULL) { if (added) nl80211_remove_iface(drv, ifidx); return -1; } if (bridge && i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " "interface %s to a bridge %s", ifname, bridge); if (added) nl80211_remove_iface(drv, ifidx); os_free(new_bss); return -1; } if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) { if (added) nl80211_remove_iface(drv, ifidx); os_free(new_bss); return -1; } os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); os_memcpy(new_bss->addr, if_addr, ETH_ALEN); new_bss->ifindex = ifidx; new_bss->drv = drv; new_bss->next = drv->first_bss->next; new_bss->freq = drv->first_bss->freq; new_bss->ctx = bss_ctx; new_bss->added_if = added; drv->first_bss->next = new_bss; if (drv_priv) *drv_priv = new_bss; nl80211_init_bss(new_bss); /* Subscribe management frames for this WPA_IF_AP_BSS */ if (nl80211_setup_ap(new_bss)) return -1; } if (drv->global) drv->global->if_add_ifindex = ifidx; /* * Some virtual interfaces need to process EAPOL packets and events on * the parent interface. This is used mainly with hostapd. */ if (ifidx > 0 && (drv->hostapd || nlmode == NL80211_IFTYPE_AP_VLAN || nlmode == NL80211_IFTYPE_WDS || nlmode == NL80211_IFTYPE_MONITOR)) add_ifidx(drv, ifidx, IFIDX_ANY); return 0; } static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, enum wpa_driver_if_type type, const char *ifname) { struct wpa_driver_nl80211_data *drv = bss->drv; int ifindex = if_nametoindex(ifname); wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", __func__, type, ifname, ifindex, bss->added_if); if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) nl80211_remove_iface(drv, ifindex); else if (ifindex > 0 && !bss->added_if) { struct wpa_driver_nl80211_data *drv2; dl_list_for_each(drv2, &drv->global->interfaces, struct wpa_driver_nl80211_data, list) { del_ifidx(drv2, ifindex, IFIDX_ANY); del_ifidx(drv2, IFIDX_ANY, ifindex); } } if (type != WPA_IF_AP_BSS) return 0; if (bss->added_if_into_bridge) { if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, bss->ifname) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove " "interface %s from bridge %s: %s", bss->ifname, bss->brname, strerror(errno)); } if (bss->added_bridge) { if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) wpa_printf(MSG_INFO, "nl80211: Failed to remove " "bridge %s: %s", bss->brname, strerror(errno)); } if (bss != drv->first_bss) { struct i802_bss *tbss; wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); for (tbss = drv->first_bss; tbss; tbss = tbss->next) { if (tbss->next == bss) { tbss->next = bss->next; /* Unsubscribe management frames */ nl80211_teardown_ap(bss); nl80211_destroy_bss(bss); if (!bss->added_if) i802_set_iface_flags(bss, 0); os_free(bss); bss = NULL; break; } } if (bss) wpa_printf(MSG_INFO, "nl80211: %s - could not find " "BSS %p in the list", __func__, bss); } else { wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); nl80211_teardown_ap(bss); if (!bss->added_if && !drv->first_bss->next) wpa_driver_nl80211_del_beacon(bss); nl80211_destroy_bss(bss); if (!bss->added_if) i802_set_iface_flags(bss, 0); if (drv->first_bss->next) { drv->first_bss = drv->first_bss->next; drv->ctx = drv->first_bss->ctx; os_free(bss); } else { wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); } } return 0; } static int cookie_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); u64 *cookie = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (tb[NL80211_ATTR_COOKIE]) *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); return NL_SKIP; } static int nl80211_send_frame_cmd(struct i802_bss *bss, unsigned int freq, unsigned int wait, const u8 *buf, size_t buf_len, int save_cookie, int no_cck, int no_ack, int offchanok, const u16 *csa_offs, size_t csa_offs_len) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; u64 cookie; int ret = -1; wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " "no_ack=%d offchanok=%d", freq, wait, no_cck, no_ack, offchanok); wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) || (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) || (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || drv->test_use_roc_tx) && nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) || (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) || (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) || (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX, csa_offs_len * sizeof(u16), csa_offs)) || nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf)) goto fail; cookie = 0; ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " "(%s) (freq=%u wait=%u)", ret, strerror(-ret), freq, wait); } else { wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " "cookie 0x%llx", no_ack ? " (no ACK)" : "", (long long unsigned int) cookie); if (save_cookie) drv->send_frame_cookie = no_ack ? (u64) -1 : cookie; if (drv->num_send_frame_cookies == MAX_SEND_FRAME_COOKIES) { wpa_printf(MSG_DEBUG, "nl80211: Drop oldest pending send frame cookie 0x%llx", (long long unsigned int) drv->send_frame_cookies[0]); os_memmove(&drv->send_frame_cookies[0], &drv->send_frame_cookies[1], (MAX_SEND_FRAME_COOKIES - 1) * sizeof(u64)); drv->num_send_frame_cookies--; } drv->send_frame_cookies[drv->num_send_frame_cookies] = cookie; drv->num_send_frame_cookies++; } fail: nlmsg_free(msg); return ret; } static int wpa_driver_nl80211_send_action(struct i802_bss *bss, unsigned int freq, unsigned int wait_time, const u8 *dst, const u8 *src, const u8 *bssid, const u8 *data, size_t data_len, int no_cck) { struct wpa_driver_nl80211_data *drv = bss->drv; int ret = -1; u8 *buf; struct ieee80211_hdr *hdr; int offchanok = 1; if (is_ap_interface(drv->nlmode) && (int) freq == bss->freq && bss->beacon_set) offchanok = 0; wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " "freq=%u MHz wait=%d ms no_cck=%d offchanok=%d)", drv->ifindex, freq, wait_time, no_cck, offchanok); buf = os_zalloc(24 + data_len); if (buf == NULL) return ret; os_memcpy(buf + 24, data, data_len); hdr = (struct ieee80211_hdr *) buf; hdr->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); os_memcpy(hdr->addr1, dst, ETH_ALEN); os_memcpy(hdr->addr2, src, ETH_ALEN); os_memcpy(hdr->addr3, bssid, ETH_ALEN); if (os_memcmp(bss->addr, src, ETH_ALEN) != 0) { wpa_printf(MSG_DEBUG, "nl80211: Use random TA " MACSTR, MAC2STR(src)); os_memcpy(bss->rand_addr, src, ETH_ALEN); } else { os_memset(bss->rand_addr, 0, ETH_ALEN); } #ifdef CONFIG_MESH if (is_mesh_interface(drv->nlmode)) { struct hostapd_hw_modes *modes; u16 num_modes, flags; u8 dfs_domain; int i; modes = nl80211_get_hw_feature_data(bss, &num_modes, &flags, &dfs_domain); if (dfs_domain != HOSTAPD_DFS_REGION_ETSI && ieee80211_is_dfs(bss->freq, modes, num_modes)) offchanok = 0; if (modes) { for (i = 0; i < num_modes; i++) { os_free(modes[i].channels); os_free(modes[i].rates); } os_free(modes); } } #endif /* CONFIG_MESH */ if (is_ap_interface(drv->nlmode) && (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || (int) freq == bss->freq || drv->device_ap_sme || !drv->use_monitor)) ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, 0, freq, no_cck, offchanok, wait_time, NULL, 0, 0); else ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, 24 + data_len, 1, no_cck, 0, offchanok, NULL, 0); os_free(buf); return ret; } static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", (long long unsigned int) cookie); if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) || nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) { nlmsg_free(msg); return; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " "(%s)", ret, strerror(-ret)); } static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; unsigned int i; u64 cookie; /* Cancel the last pending TX cookie */ nl80211_frame_wait_cancel(bss, drv->send_frame_cookie); /* * Cancel the other pending TX cookies, if any. This is needed since * the driver may keep a list of all pending offchannel TX operations * and free up the radio only once they have expired or cancelled. */ for (i = drv->num_send_frame_cookies; i > 0; i--) { cookie = drv->send_frame_cookies[i - 1]; if (cookie != drv->send_frame_cookie) nl80211_frame_wait_cancel(bss, cookie); } drv->num_send_frame_cookies = 0; } static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, unsigned int duration) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; u64 cookie; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) || nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) { nlmsg_free(msg); return -1; } cookie = 0; ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie, NULL, NULL); if (ret == 0) { wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " "0x%llx for freq=%u MHz duration=%u", (long long unsigned int) cookie, freq, duration); drv->remain_on_chan_cookie = cookie; drv->pending_remain_on_chan = 1; return 0; } wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " "(freq=%d duration=%u): %d (%s)", freq, duration, ret, strerror(-ret)); return -1; } static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; if (!drv->pending_remain_on_chan) { wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " "to cancel"); return -1; } wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " "0x%llx", (long long unsigned int) drv->remain_on_chan_cookie); msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); if (!msg || nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) { nlmsg_free(msg); return -1; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret == 0) return 0; wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " "%d (%s)", ret, strerror(-ret)); return -1; } static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) { struct wpa_driver_nl80211_data *drv = bss->drv; if (!report) { if (bss->nl_preq && drv->device_ap_sme && is_ap_interface(drv->nlmode) && !bss->in_deinit && !bss->static_ap) { /* * Do not disable Probe Request reporting that was * enabled in nl80211_setup_ap(). */ wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " "Probe Request reporting nl_preq=%p while " "in AP mode", bss->nl_preq); } else if (bss->nl_preq) { wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " "reporting nl_preq=%p", bss->nl_preq); nl80211_destroy_eloop_handle(&bss->nl_preq, 0); } return 0; } if (bss->nl_preq) { wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " "already on! nl_preq=%p", bss->nl_preq); return 0; } bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); if (bss->nl_preq == NULL) return -1; wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " "reporting nl_preq=%p", bss->nl_preq); if (nl80211_register_frame(bss, bss->nl_preq, (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_PROBE_REQ << 4), NULL, 0, false) < 0) goto out_err; nl80211_register_eloop_read(&bss->nl_preq, wpa_driver_nl80211_event_receive, bss->nl_cb, 0); return 0; out_err: nl_destroy_handles(&bss->nl_preq); return -1; } static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, int ifindex, int disabled) { struct nl_msg *msg; struct nlattr *bands, *band; int ret; wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)", ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" : "no NL80211_TXRATE_LEGACY constraint"); msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_TX_BITRATE_MASK); if (!msg) return -1; bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); if (!bands) goto fail; /* * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS * rates. All 5 GHz rates are left enabled. */ band = nla_nest_start(msg, NL80211_BAND_2GHZ); if (!band || (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8, "\x0c\x12\x18\x24\x30\x48\x60\x6c"))) goto fail; nla_nest_end(msg, band); nla_nest_end(msg, bands); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " "(%s)", ret, strerror(-ret)); } else drv->disabled_11b_rates = disabled; return ret; fail: nlmsg_free(msg); return -1; } static int wpa_driver_nl80211_deinit_ap(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (!is_ap_interface(drv->nlmode)) return -1; wpa_driver_nl80211_del_beacon(bss); bss->beacon_set = 0; /* * If the P2P GO interface was dynamically added, then it is * possible that the interface change to station is not possible. */ if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) return 0; return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); } static int wpa_driver_nl80211_stop_ap(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (!is_ap_interface(drv->nlmode)) return -1; wpa_driver_nl80211_del_beacon(bss); bss->beacon_set = 0; return 0; } static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) return -1; /* * If the P2P Client interface was dynamically added, then it is * possible that the interface change to station is not possible. */ if (bss->if_dynamic) return 0; return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); } static void wpa_driver_nl80211_resume(void *priv) { struct i802_bss *bss = priv; enum nl80211_iftype nlmode = nl80211_get_ifmode(bss); if (i802_set_iface_flags(bss, 1)) wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); if (is_p2p_net_interface(nlmode)) nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1); } static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *cqm; wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " "hysteresis=%d", threshold, hysteresis); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) || !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) || nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) || nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) { nlmsg_free(msg); return -1; } nla_nest_end(msg, cqm); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } static int get_channel_width(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct wpa_signal_info *sig_change = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); sig_change->center_frq1 = -1; sig_change->center_frq2 = -1; sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { sig_change->chanwidth = convert2width( nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); if (tb[NL80211_ATTR_CENTER_FREQ1]) sig_change->center_frq1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); if (tb[NL80211_ATTR_CENTER_FREQ2]) sig_change->center_frq2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); } return NL_SKIP; } static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, struct wpa_signal_info *sig) { struct nl_msg *msg; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE); return send_and_recv_msgs(drv, msg, get_channel_width, sig, NULL, NULL); } static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; int res; os_memset(si, 0, sizeof(*si)); res = nl80211_get_link_signal(drv, si); if (res) { if (drv->nlmode != NL80211_IFTYPE_ADHOC && drv->nlmode != NL80211_IFTYPE_MESH_POINT) return res; si->current_signal = 0; } res = nl80211_get_channel_width(drv, si); if (res != 0) return res; return nl80211_get_link_noise(drv, si); } static int nl80211_set_param(void *priv, const char *param) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (param == NULL) return 0; wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); #ifdef CONFIG_P2P if (os_strstr(param, "use_p2p_group_interface=1")) { wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " "interface"); drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; } #endif /* CONFIG_P2P */ if (os_strstr(param, "use_monitor=1")) drv->use_monitor = 1; if (os_strstr(param, "force_connect_cmd=1")) { drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; drv->force_connect_cmd = 1; } if (os_strstr(param, "force_bss_selection=1")) drv->capa.flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; if (os_strstr(param, "no_offchannel_tx=1")) { drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX; drv->test_use_roc_tx = 1; } if (os_strstr(param, "control_port=0")) { drv->capa.flags &= ~WPA_DRIVER_FLAGS_CONTROL_PORT; drv->capa.flags2 &= ~(WPA_DRIVER_FLAGS2_CONTROL_PORT_RX | WPA_DRIVER_FLAGS2_CONTROL_PORT_TX_STATUS); drv->control_port_ap = 0; } if (os_strstr(param, "control_port_ap=1")) drv->control_port_ap = 1; if (os_strstr(param, "control_port_ap=0")) { drv->capa.flags2 &= ~WPA_DRIVER_FLAGS2_CONTROL_PORT_TX_STATUS; drv->control_port_ap = 0; } if (os_strstr(param, "full_ap_client_state=0")) drv->capa.flags &= ~WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE; if (os_strstr(param, "no_rrm=1")) { drv->no_rrm = 1; if (!bss->in_deinit && !is_ap_interface(drv->nlmode) && !is_mesh_interface(drv->nlmode)) { nl80211_mgmt_unsubscribe(bss, "no_rrm=1"); if (nl80211_mgmt_subscribe_non_ap(bss) < 0) wpa_printf(MSG_DEBUG, "nl80211: Failed to re-register Action frame processing - ignore for now"); } } return 0; } static void * nl80211_global_init(void *ctx) { struct nl80211_global *global; struct netlink_config *cfg; global = os_zalloc(sizeof(*global)); if (global == NULL) return NULL; global->ctx = ctx; global->ioctl_sock = -1; dl_list_init(&global->interfaces); global->if_add_ifindex = -1; cfg = os_zalloc(sizeof(*cfg)); if (cfg == NULL) goto err; cfg->ctx = global; cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; global->netlink = netlink_init(cfg); if (global->netlink == NULL) { os_free(cfg); goto err; } if (wpa_driver_nl80211_init_nl_global(global) < 0) goto err; global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); if (global->ioctl_sock < 0) { wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", strerror(errno)); goto err; } return global; err: nl80211_global_deinit(global); return NULL; } static void nl80211_global_deinit(void *priv) { struct nl80211_global *global = priv; if (global == NULL) return; if (!dl_list_empty(&global->interfaces)) { wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " "nl80211_global_deinit", dl_list_len(&global->interfaces)); } if (global->netlink) netlink_deinit(global->netlink); nl_destroy_handles(&global->nl); if (global->nl_event) nl80211_destroy_eloop_handle(&global->nl_event, 0); nl_cb_put(global->nl_cb); if (global->ioctl_sock >= 0) close(global->ioctl_sock); os_free(global); } static const char * nl80211_get_radio_name(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; return drv->phyname; } static int nl80211_pmkid(struct i802_bss *bss, int cmd, struct wpa_pmkid_params *params) { struct nl_msg *msg; const size_t PMK_MAX_LEN = 48; /* current cfg80211 limit */ if (!(msg = nl80211_bss_msg(bss, 0, cmd)) || (params->pmkid && nla_put(msg, NL80211_ATTR_PMKID, 16, params->pmkid)) || (params->bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) || (params->ssid_len && nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) || (params->fils_cache_id && nla_put(msg, NL80211_ATTR_FILS_CACHE_ID, 2, params->fils_cache_id)) || (params->pmk_lifetime && nla_put_u32(msg, NL80211_ATTR_PMK_LIFETIME, params->pmk_lifetime)) || (params->pmk_reauth_threshold && nla_put_u8(msg, NL80211_ATTR_PMK_REAUTH_THRESHOLD, params->pmk_reauth_threshold)) || (cmd != NL80211_CMD_DEL_PMKSA && params->pmk_len && params->pmk_len <= PMK_MAX_LEN && nla_put(msg, NL80211_ATTR_PMK, params->pmk_len, params->pmk))) { nl80211_nlmsg_clear(msg); nlmsg_free(msg); return -ENOBUFS; } return send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); } static int nl80211_add_pmkid(void *priv, struct wpa_pmkid_params *params) { struct i802_bss *bss = priv; int ret; if (params->bssid) wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(params->bssid)); else if (params->fils_cache_id && params->ssid_len) { wpa_printf(MSG_DEBUG, "nl80211: Add PMKSA for cache id %02x%02x SSID %s", params->fils_cache_id[0], params->fils_cache_id[1], wpa_ssid_txt(params->ssid, params->ssid_len)); } ret = nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, params); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_SET_PMKSA failed: %d (%s)", ret, strerror(-ret)); } return ret; } static int nl80211_remove_pmkid(void *priv, struct wpa_pmkid_params *params) { struct i802_bss *bss = priv; int ret; if (params->bssid) wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, MAC2STR(params->bssid)); else if (params->fils_cache_id && params->ssid_len) { wpa_printf(MSG_DEBUG, "nl80211: Delete PMKSA for cache id %02x%02x SSID %s", params->fils_cache_id[0], params->fils_cache_id[1], wpa_ssid_txt(params->ssid, params->ssid_len)); } ret = nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, params); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_DEL_PMKSA failed: %d (%s)", ret, strerror(-ret)); } return ret; } static int nl80211_flush_pmkid(void *priv) { struct i802_bss *bss = priv; struct nl_msg *msg; wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); msg = nl80211_bss_msg(bss, 0, NL80211_CMD_FLUSH_PMKSA); if (!msg) return -ENOBUFS; return send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); } static void clean_survey_results(struct survey_results *survey_results) { struct freq_survey *survey, *tmp; if (dl_list_empty(&survey_results->survey_list)) return; dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, struct freq_survey, list) { dl_list_del(&survey->list); os_free(survey); } } static void add_survey(struct nlattr **sinfo, u32 ifidx, struct dl_list *survey_list) { struct freq_survey *survey; survey = os_zalloc(sizeof(struct freq_survey)); if (!survey) return; survey->ifidx = ifidx; survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); survey->filled = 0; if (sinfo[NL80211_SURVEY_INFO_NOISE]) { survey->nf = (int8_t) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); survey->filled |= SURVEY_HAS_NF; } if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { survey->channel_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); survey->filled |= SURVEY_HAS_CHAN_TIME; } if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { survey->channel_time_busy = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; } if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { survey->channel_time_rx = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); survey->filled |= SURVEY_HAS_CHAN_TIME_RX; } if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { survey->channel_time_tx = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); survey->filled |= SURVEY_HAS_CHAN_TIME_TX; } 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)", survey->freq, survey->nf, (unsigned long int) survey->channel_time, (unsigned long int) survey->channel_time_busy, (unsigned long int) survey->channel_time_tx, (unsigned long int) survey->channel_time_rx, survey->filled); dl_list_add_tail(survey_list, &survey->list); } static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, unsigned int freq_filter) { if (!freq_filter) return 1; return freq_filter == surveyed_freq; } static int survey_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; struct survey_results *survey_results; u32 surveyed_freq = 0; u32 ifidx; static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, }; survey_results = (struct survey_results *) arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb[NL80211_ATTR_IFINDEX]) return NL_SKIP; ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); if (!tb[NL80211_ATTR_SURVEY_INFO]) return NL_SKIP; if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, tb[NL80211_ATTR_SURVEY_INFO], survey_policy)) return NL_SKIP; if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); return NL_SKIP; } surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); if (!check_survey_ok(sinfo, surveyed_freq, survey_results->freq_filter)) return NL_SKIP; if (survey_results->freq_filter && survey_results->freq_filter != surveyed_freq) { wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", surveyed_freq); return NL_SKIP; } add_survey(sinfo, ifidx, &survey_results->survey_list); return NL_SKIP; } static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int err; union wpa_event_data data; struct survey_results *survey_results; os_memset(&data, 0, sizeof(data)); survey_results = &data.survey_results; dl_list_init(&survey_results->survey_list); msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); if (!msg) return -ENOBUFS; if (freq) data.survey_results.freq_filter = freq; do { wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); err = send_and_recv_msgs(drv, msg, survey_handler, survey_results, NULL, NULL); } while (err > 0); if (err) wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); else wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); clean_survey_results(survey_results); return err; } static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len, const u8 *kck, size_t kck_len, const u8 *replay_ctr) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nlattr *replay_nested; struct nl_msg *msg; int ret; if (!drv->set_rekey_offload) return; wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload"); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) || !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) || nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) || (kck_len && nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck)) || nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, replay_ctr)) { nl80211_nlmsg_clear(msg); nlmsg_free(msg); return; } nla_nest_end(msg, replay_nested); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret == -EOPNOTSUPP) { wpa_printf(MSG_DEBUG, "nl80211: Driver does not support rekey offload"); drv->set_rekey_offload = 0; } } static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, const u8 *addr, int qos) { /* send data frame to poll STA and check whether * this frame is ACKed */ struct { struct ieee80211_hdr hdr; u16 qos_ctl; } STRUCT_PACKED nulldata; size_t size; /* Send data frame to poll STA and check whether this frame is ACKed */ os_memset(&nulldata, 0, sizeof(nulldata)); if (qos) { nulldata.hdr.frame_control = IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_QOS_NULL); size = sizeof(nulldata); } else { nulldata.hdr.frame_control = IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_NULLFUNC); size = sizeof(struct ieee80211_hdr); } nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, 0, 0, NULL, 0, 0) < 0) wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " "send poll frame"); } static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, int qos) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; u64 cookie; int ret; if (!drv->poll_command_supported) { nl80211_send_null_frame(bss, own_addr, addr, qos); return; } if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { nlmsg_free(msg); return; } ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie, NULL, NULL); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: Client probe request for " MACSTR " failed: ret=%d (%s)", MAC2STR(addr), ret, strerror(-ret)); } else { wpa_printf(MSG_DEBUG, "nl80211: Client probe request addr=" MACSTR " cookie=%llu", MAC2STR(addr), (long long unsigned int) cookie); } } static int nl80211_set_power_save(struct i802_bss *bss, int enabled) { struct nl_msg *msg; int ret; if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) || nla_put_u32(msg, NL80211_ATTR_PS_STATE, enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL, NULL, NULL); if (ret < 0) { wpa_printf(MSG_DEBUG, "nl80211: Setting PS state %s failed: %d (%s)", enabled ? "enabled" : "disabled", ret, strerror(-ret)); } return ret; } static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, int ctwindow) { struct i802_bss *bss = priv; wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); if (opp_ps != -1 || ctwindow != -1) { #ifdef ANDROID_P2P wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); #else /* ANDROID_P2P */ return -1; /* Not yet supported */ #endif /* ANDROID_P2P */ } if (legacy_ps == -1) return 0; if (legacy_ps != 0 && legacy_ps != 1) return -1; /* Not yet supported */ return nl80211_set_power_save(bss, legacy_ps); } static int nl80211_start_radar_detection(void *priv, struct hostapd_freq_params *freq) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, he_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled, freq->bandwidth, freq->center_freq1, freq->center_freq2); if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " "detection"); return -1; } if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) || nl80211_put_freq_params(msg, freq) < 0) { nlmsg_free(msg); return -1; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret == 0) return 0; wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " "%d (%s)", ret, strerror(-ret)); return -1; } #ifdef CONFIG_TDLS static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, u8 dialog_token, u16 status_code, u32 peer_capab, int initiator, const u8 *buf, size_t len) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) return -EOPNOTSUPP; if (!dst) return -EINVAL; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) || nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) || nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code)) goto fail; if (peer_capab) { /* * The internal enum tdls_peer_capability definition is * currently identical with the nl80211 enum * nl80211_tdls_peer_capability, so no conversion is needed * here. */ if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY, peer_capab)) goto fail; } if ((initiator && nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) || nla_put(msg, NL80211_ATTR_IE, len, buf)) goto fail; return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); fail: nlmsg_free(msg); return -ENOBUFS; } static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; enum nl80211_tdls_operation nl80211_oper; int res; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) return -EOPNOTSUPP; switch (oper) { case TDLS_DISCOVERY_REQ: nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; break; case TDLS_SETUP: nl80211_oper = NL80211_TDLS_SETUP; break; case TDLS_TEARDOWN: nl80211_oper = NL80211_TDLS_TEARDOWN; break; case TDLS_ENABLE_LINK: nl80211_oper = NL80211_TDLS_ENABLE_LINK; break; case TDLS_DISABLE_LINK: nl80211_oper = NL80211_TDLS_DISABLE_LINK; break; case TDLS_ENABLE: return 0; case TDLS_DISABLE: return 0; default: return -EINVAL; } if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) || nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) { nlmsg_free(msg); return -ENOBUFS; } res = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); wpa_printf(MSG_DEBUG, "nl80211: TDLS_OPER: oper=%d mac=" MACSTR " --> res=%d (%s)", nl80211_oper, MAC2STR(peer), res, strerror(-res)); return res; } static int nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class, const struct hostapd_freq_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret = -ENOBUFS; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) return -EOPNOTSUPP; wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR " oper_class=%u freq=%u", MAC2STR(addr), oper_class, params->freq); msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH); if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) || (ret = nl80211_put_freq_params(msg, params))) { nlmsg_free(msg); wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch"); return ret; } return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } static int nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) || !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)) return -EOPNOTSUPP; wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR, MAC2STR(addr)); msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH); if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { nlmsg_free(msg); wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS cancel chan switch"); return -ENOBUFS; } return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } #endif /* CONFIG TDLS */ static int driver_nl80211_set_key(void *priv, struct wpa_driver_set_key_params *params) { struct i802_bss *bss = priv; return wpa_driver_nl80211_set_key(bss, params); } static int driver_nl80211_scan2(void *priv, struct wpa_driver_scan_params *params) { struct i802_bss *bss = priv; #ifdef CONFIG_DRIVER_NL80211_QCA struct wpa_driver_nl80211_data *drv = bss->drv; /* * Do a vendor specific scan if possible. If only_new_results is * set, do a normal scan since a kernel (cfg80211) BSS cache flush * cannot be achieved through a vendor scan. The below condition may * need to be modified if new scan flags are added in the future whose * functionality can only be achieved through a normal scan. */ if (drv->scan_vendor_cmd_avail && !params->only_new_results) return wpa_driver_nl80211_vendor_scan(bss, params); #endif /* CONFIG_DRIVER_NL80211_QCA */ return wpa_driver_nl80211_scan(bss, params); } static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, u16 reason_code) { struct i802_bss *bss = priv; return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); } static int driver_nl80211_authenticate(void *priv, struct wpa_driver_auth_params *params) { struct i802_bss *bss = priv; return wpa_driver_nl80211_authenticate(bss, params); } static void driver_nl80211_deinit(void *priv) { struct i802_bss *bss = priv; wpa_driver_nl80211_deinit(bss); } static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, const char *ifname) { struct i802_bss *bss = priv; return wpa_driver_nl80211_if_remove(bss, type, ifname); } static int driver_nl80211_send_mlme(void *priv, const u8 *data, size_t data_len, int noack, unsigned int freq, const u16 *csa_offs, size_t csa_offs_len, int no_encrypt, unsigned int wait) { struct i802_bss *bss = priv; return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, freq, 0, 0, wait, csa_offs, csa_offs_len, no_encrypt); } static int driver_nl80211_sta_remove(void *priv, const u8 *addr) { struct i802_bss *bss = priv; return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0); } static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, const char *ifname, int vlan_id) { struct i802_bss *bss = priv; return i802_set_sta_vlan(bss, addr, ifname, vlan_id); } static int driver_nl80211_read_sta_data(void *priv, struct hostap_sta_driver_data *data, const u8 *addr) { struct i802_bss *bss = priv; os_memset(data, 0, sizeof(*data)); return i802_read_sta_data(bss, data, addr); } static int driver_nl80211_send_action(void *priv, unsigned int freq, unsigned int wait_time, const u8 *dst, const u8 *src, const u8 *bssid, const u8 *data, size_t data_len, int no_cck) { struct i802_bss *bss = priv; return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, bssid, data, data_len, no_cck); } static int driver_nl80211_probe_req_report(void *priv, int report) { struct i802_bss *bss = priv; return wpa_driver_nl80211_probe_req_report(bss, report); } static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, const u8 *ies, size_t ies_len) { int ret; struct nl_msg *msg; struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; u16 mdid = WPA_GET_LE16(md); wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) || nla_put(msg, NL80211_ATTR_IE, ies_len, ies) || nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " "err=%d (%s)", ret, strerror(-ret)); } return ret; } static int nl80211_update_dh_ie(void *priv, const u8 *peer_mac, u16 reason_code, const u8 *ie, size_t ie_len) { int ret; struct nl_msg *msg; struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; wpa_printf(MSG_DEBUG, "nl80211: Updating DH IE peer: " MACSTR " reason %u", MAC2STR(peer_mac), reason_code); if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UPDATE_OWE_INFO)) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer_mac) || nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, reason_code) || (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: update_dh_ie failed err=%d (%s)", ret, strerror(-ret)); } return ret; } static const u8 * wpa_driver_nl80211_get_macaddr(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) return NULL; return bss->addr; } static const char * scan_state_str(enum scan_states scan_state) { switch (scan_state) { case NO_SCAN: return "NO_SCAN"; case SCAN_REQUESTED: return "SCAN_REQUESTED"; case SCAN_STARTED: return "SCAN_STARTED"; case SCAN_COMPLETED: return "SCAN_COMPLETED"; case SCAN_ABORTED: return "SCAN_ABORTED"; case SCHED_SCAN_STARTED: return "SCHED_SCAN_STARTED"; case SCHED_SCAN_STOPPED: return "SCHED_SCAN_STOPPED"; case SCHED_SCAN_RESULTS: return "SCHED_SCAN_RESULTS"; } return "??"; } static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; int res; char *pos, *end; struct nl_msg *msg; char alpha2[3] = { 0, 0, 0 }; pos = buf; end = buf + buflen; res = os_snprintf(pos, end - pos, "ifindex=%d\n" "ifname=%s\n" "brname=%s\n" "addr=" MACSTR "\n" "freq=%d\n" "%s%s%s%s%s%s", bss->ifindex, bss->ifname, bss->brname, MAC2STR(bss->addr), bss->freq, bss->beacon_set ? "beacon_set=1\n" : "", bss->added_if_into_bridge ? "added_if_into_bridge=1\n" : "", bss->already_in_bridge ? "already_in_bridge=1\n" : "", bss->added_bridge ? "added_bridge=1\n" : "", bss->in_deinit ? "in_deinit=1\n" : "", bss->if_dynamic ? "if_dynamic=1\n" : ""); if (os_snprintf_error(end - pos, res)) return pos - buf; pos += res; if (bss->wdev_id_set) { res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", (unsigned long long) bss->wdev_id); if (os_snprintf_error(end - pos, res)) return pos - buf; pos += res; } res = os_snprintf(pos, end - pos, "phyname=%s\n" "perm_addr=" MACSTR "\n" "drv_ifindex=%d\n" "operstate=%d\n" "scan_state=%s\n" "auth_bssid=" MACSTR "\n" "auth_attempt_bssid=" MACSTR "\n" "bssid=" MACSTR "\n" "prev_bssid=" MACSTR "\n" "associated=%d\n" "assoc_freq=%u\n" "monitor_sock=%d\n" "monitor_ifidx=%d\n" "monitor_refcount=%d\n" "last_mgmt_freq=%u\n" "eapol_tx_sock=%d\n" "%s%s%s%s%s%s%s%s%s%s%s%s%s", drv->phyname, MAC2STR(drv->perm_addr), drv->ifindex, drv->operstate, scan_state_str(drv->scan_state), MAC2STR(drv->auth_bssid), MAC2STR(drv->auth_attempt_bssid), MAC2STR(drv->bssid), MAC2STR(drv->prev_bssid), drv->associated, drv->assoc_freq, drv->monitor_sock, drv->monitor_ifidx, drv->monitor_refcount, drv->last_mgmt_freq, drv->eapol_tx_sock, drv->ignore_if_down_event ? "ignore_if_down_event=1\n" : "", drv->scan_complete_events ? "scan_complete_events=1\n" : "", drv->disabled_11b_rates ? "disabled_11b_rates=1\n" : "", drv->pending_remain_on_chan ? "pending_remain_on_chan=1\n" : "", drv->in_interface_list ? "in_interface_list=1\n" : "", drv->device_ap_sme ? "device_ap_sme=1\n" : "", drv->poll_command_supported ? "poll_command_supported=1\n" : "", drv->data_tx_status ? "data_tx_status=1\n" : "", drv->scan_for_auth ? "scan_for_auth=1\n" : "", drv->retry_auth ? "retry_auth=1\n" : "", drv->use_monitor ? "use_monitor=1\n" : "", drv->ignore_next_local_disconnect ? "ignore_next_local_disconnect=1\n" : "", drv->ignore_next_local_deauth ? "ignore_next_local_deauth=1\n" : ""); if (os_snprintf_error(end - pos, res)) return pos - buf; pos += res; if (drv->has_capability) { res = os_snprintf(pos, end - pos, "capa.key_mgmt=0x%x\n" "capa.enc=0x%x\n" "capa.auth=0x%x\n" "capa.flags=0x%llx\n" "capa.rrm_flags=0x%x\n" "capa.max_scan_ssids=%d\n" "capa.max_sched_scan_ssids=%d\n" "capa.sched_scan_supported=%d\n" "capa.max_match_sets=%d\n" "capa.max_remain_on_chan=%u\n" "capa.max_stations=%u\n" "capa.probe_resp_offloads=0x%x\n" "capa.max_acl_mac_addrs=%u\n" "capa.num_multichan_concurrent=%u\n" "capa.mac_addr_rand_sched_scan_supported=%d\n" "capa.mac_addr_rand_scan_supported=%d\n" "capa.conc_capab=%u\n" "capa.max_conc_chan_2_4=%u\n" "capa.max_conc_chan_5_0=%u\n" "capa.max_sched_scan_plans=%u\n" "capa.max_sched_scan_plan_interval=%u\n" "capa.max_sched_scan_plan_iterations=%u\n", drv->capa.key_mgmt, drv->capa.enc, drv->capa.auth, (unsigned long long) drv->capa.flags, drv->capa.rrm_flags, drv->capa.max_scan_ssids, drv->capa.max_sched_scan_ssids, drv->capa.sched_scan_supported, drv->capa.max_match_sets, drv->capa.max_remain_on_chan, drv->capa.max_stations, drv->capa.probe_resp_offloads, drv->capa.max_acl_mac_addrs, drv->capa.num_multichan_concurrent, drv->capa.mac_addr_rand_sched_scan_supported, drv->capa.mac_addr_rand_scan_supported, drv->capa.conc_capab, drv->capa.max_conc_chan_2_4, drv->capa.max_conc_chan_5_0, drv->capa.max_sched_scan_plans, drv->capa.max_sched_scan_plan_interval, drv->capa.max_sched_scan_plan_iterations); if (os_snprintf_error(end - pos, res)) return pos - buf; pos += res; } msg = nlmsg_alloc(); if (msg && nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG) && nla_put_u32(msg, NL80211_ATTR_WIPHY, drv->wiphy_idx) == 0) { if (send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2, NULL, NULL) == 0 && alpha2[0]) { res = os_snprintf(pos, end - pos, "country=%s\n", alpha2); if (os_snprintf_error(end - pos, res)) return pos - buf; pos += res; } } else { nlmsg_free(msg); } return pos - buf; } static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) { if ((settings->head && nla_put(msg, NL80211_ATTR_BEACON_HEAD, settings->head_len, settings->head)) || (settings->tail && nla_put(msg, NL80211_ATTR_BEACON_TAIL, settings->tail_len, settings->tail)) || (settings->beacon_ies && nla_put(msg, NL80211_ATTR_IE, settings->beacon_ies_len, settings->beacon_ies)) || (settings->proberesp_ies && nla_put(msg, NL80211_ATTR_IE_PROBE_RESP, settings->proberesp_ies_len, settings->proberesp_ies)) || (settings->assocresp_ies && nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP, settings->assocresp_ies_len, settings->assocresp_ies)) || (settings->probe_resp && nla_put(msg, NL80211_ATTR_PROBE_RESP, settings->probe_resp_len, settings->probe_resp))) return -ENOBUFS; return 0; } static int nl80211_switch_channel(void *priv, struct csa_settings *settings) { struct nl_msg *msg; struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nlattr *beacon_csa; int ret = -ENOBUFS; int csa_off_len = 0; int i; wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", settings->cs_count, settings->block_tx, settings->freq_params.freq, settings->freq_params.bandwidth, settings->freq_params.center_freq1, settings->freq_params.center_freq2); if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); return -EOPNOTSUPP; } if (drv->nlmode != NL80211_IFTYPE_AP && drv->nlmode != NL80211_IFTYPE_P2P_GO && drv->nlmode != NL80211_IFTYPE_MESH_POINT) return -EOPNOTSUPP; /* * Remove empty counters, assuming Probe Response and Beacon frame * counters match. This implementation assumes that there are only two * counters. */ if (settings->counter_offset_beacon[0] && !settings->counter_offset_beacon[1]) { csa_off_len = 1; } else if (settings->counter_offset_beacon[1] && !settings->counter_offset_beacon[0]) { csa_off_len = 1; settings->counter_offset_beacon[0] = settings->counter_offset_beacon[1]; settings->counter_offset_presp[0] = settings->counter_offset_presp[1]; } else if (settings->counter_offset_beacon[1] && settings->counter_offset_beacon[0]) { csa_off_len = 2; } else { wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided"); return -EINVAL; } /* Check CSA counters validity */ if (drv->capa.max_csa_counters && csa_off_len > drv->capa.max_csa_counters) { wpa_printf(MSG_ERROR, "nl80211: Too many CSA counters provided"); return -EINVAL; } if (!settings->beacon_csa.tail) return -EINVAL; for (i = 0; i < csa_off_len; i++) { u16 csa_c_off_bcn = settings->counter_offset_beacon[i]; u16 csa_c_off_presp = settings->counter_offset_presp[i]; if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) || (settings->beacon_csa.tail[csa_c_off_bcn] != settings->cs_count)) return -EINVAL; if (settings->beacon_csa.probe_resp && ((settings->beacon_csa.probe_resp_len <= csa_c_off_presp) || (settings->beacon_csa.probe_resp[csa_c_off_presp] != settings->cs_count))) return -EINVAL; } if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) || nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count) || (ret = nl80211_put_freq_params(msg, &settings->freq_params)) || (settings->block_tx && nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX))) goto error; /* beacon_after params */ ret = set_beacon_data(msg, &settings->beacon_after); if (ret) goto error; /* beacon_csa params */ beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); if (!beacon_csa) goto fail; ret = set_beacon_data(msg, &settings->beacon_csa); if (ret) goto error; if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON, csa_off_len * sizeof(u16), settings->counter_offset_beacon) || (settings->beacon_csa.probe_resp && nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP, csa_off_len * sizeof(u16), settings->counter_offset_presp))) goto fail; nla_nest_end(msg, beacon_csa); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", ret, strerror(-ret)); } return ret; fail: ret = -ENOBUFS; error: nlmsg_free(msg); wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); return ret; } static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr, u8 user_priority, u16 admitted_time) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d", tsid, admitted_time, user_priority); if (!is_sta_interface(drv->nlmode)) return -ENOTSUP; msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS); if (!msg || nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) || nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)", ret, strerror(-ret)); return ret; } static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid); if (!is_sta_interface(drv->nlmode)) return -ENOTSUP; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) || nla_put_u8(msg, NL80211_ATTR_TSID, tsid) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)", ret, strerror(-ret)); return ret; } #ifdef CONFIG_TESTING_OPTIONS static int cmd_reply_handler(struct nl_msg *msg, void *arg) { struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct wpabuf *buf = arg; if (!buf) return NL_SKIP; if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) { wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply"); return NL_SKIP; } wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0)); return NL_SKIP; } #endif /* CONFIG_TESTING_OPTIONS */ static int vendor_reply_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct nlattr *nl_vendor_reply, *nl; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct wpabuf *buf = arg; int rem; if (!buf) return NL_SKIP; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA]; if (!nl_vendor_reply) return NL_SKIP; if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) { wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply"); return NL_SKIP; } nla_for_each_nested(nl, nl_vendor_reply, rem) { wpabuf_put_data(buf, nla_data(nl), nla_len(nl)); } return NL_SKIP; } static bool is_cmd_with_nested_attrs(unsigned int vendor_id, unsigned int subcmd) { if (vendor_id != OUI_QCA) return true; switch (subcmd) { case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: case QCA_NL80211_VENDOR_SUBCMD_STATS_EXT: case QCA_NL80211_VENDOR_SUBCMD_SCANNING_MAC_OUI: case QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY: case QCA_NL80211_VENDOR_SUBCMD_SPECTRAL_SCAN_GET_STATUS: case QCA_NL80211_VENDOR_SUBCMD_NAN: return false; default: return true; } } static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id, unsigned int subcmd, const u8 *data, size_t data_len, enum nested_attr nested_attr, struct wpabuf *buf) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret, nla_flag; #ifdef CONFIG_TESTING_OPTIONS if (vendor_id == 0xffffffff) { msg = nlmsg_alloc(); if (!msg) return -ENOMEM; nl80211_cmd(drv, msg, 0, subcmd); if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) < 0) goto fail; /* This test vendor_cmd can be used with nl80211 commands that * need the connect nl_sock, so use the owner-setting variant * of send_and_recv_msgs(). */ ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(bss), 0, cmd_reply_handler, buf, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d", ret); return ret; } #endif /* CONFIG_TESTING_OPTIONS */ if (nested_attr == NESTED_ATTR_USED) nla_flag = NLA_F_NESTED; else if (nested_attr == NESTED_ATTR_UNSPECIFIED && is_cmd_with_nested_attrs(vendor_id, subcmd)) nla_flag = NLA_F_NESTED; else nla_flag = 0; if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) || (data && nla_put(msg, nla_flag | NL80211_ATTR_VENDOR_DATA, data_len, data))) goto fail; ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d", ret); return ret; fail: nlmsg_free(msg); return -ENOBUFS; } static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, u8 qos_map_set_len) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", qos_map_set, qos_map_set_len); if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) || nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); return ret; } static int get_wowlan_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); int *wowlan_enabled = arg; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); *wowlan_enabled = !!tb[NL80211_ATTR_WOWLAN_TRIGGERS]; return NL_SKIP; } static int nl80211_get_wowlan(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int wowlan_enabled; int ret; wpa_printf(MSG_DEBUG, "nl80211: Getting wowlan status"); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_WOWLAN); ret = send_and_recv_msgs(drv, msg, get_wowlan_handler, &wowlan_enabled, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Getting wowlan status failed"); return 0; } wpa_printf(MSG_DEBUG, "nl80211: wowlan is %s", wowlan_enabled ? "enabled" : "disabled"); return wowlan_enabled; } static int nl80211_set_wowlan(void *priv, const struct wowlan_triggers *triggers) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *wowlan_triggers; int ret; wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan"); if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) || !(wowlan_triggers = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS)) || (triggers->any && nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || (triggers->disconnect && nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || (triggers->magic_pkt && nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || (triggers->gtk_rekey_failure && nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || (triggers->eap_identity_req && nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || (triggers->four_way_handshake && nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || (triggers->rfkill_release && nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) { nlmsg_free(msg); return -ENOBUFS; } nla_nest_end(msg, wowlan_triggers); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed"); return ret; } #ifdef CONFIG_DRIVER_NL80211_QCA static int nl80211_roaming(void *priv, int allowed, const u8 *bssid) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *params; wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed); if (!drv->roaming_vendor_cmd_avail) { wpa_printf(MSG_DEBUG, "nl80211: Ignore roaming policy change since driver does not provide command for setting it"); return -1; } if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_ROAMING) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY, allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS : QCA_ROAMING_NOT_ALLOWED) || (bssid && nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) { nlmsg_free(msg); return -1; } nla_nest_end(msg, params); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } static int nl80211_disable_fils(void *priv, int disable) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *params; wpa_printf(MSG_DEBUG, "nl80211: Disable FILS=%d", disable); if (!drv->set_wifi_conf_vendor_cmd_avail) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_DISABLE_FILS, disable)) { nlmsg_free(msg); return -1; } nla_nest_end(msg, params); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } /* Reserved QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID value for wpa_supplicant */ #define WPA_SUPPLICANT_CLIENT_ID 1 static int nl80211_set_bssid_tmp_disallow(void *priv, unsigned int num_bssid, const u8 *bssid) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *params, *nlbssids, *attr; unsigned int i; wpa_printf(MSG_DEBUG, "nl80211: Set temporarily disallowed BSSIDs (num=%u)", num_bssid); if (!drv->roam_vendor_cmd_avail) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_ROAM) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD, QCA_WLAN_VENDOR_ROAMING_SUBCMD_SET_BLACKLIST_BSSID) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID, WPA_SUPPLICANT_CLIENT_ID) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID, num_bssid)) goto fail; nlbssids = nla_nest_start( msg, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS); if (!nlbssids) goto fail; for (i = 0; i < num_bssid; i++) { attr = nla_nest_start(msg, i); if (!attr) goto fail; if (nla_put(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_BSSID, ETH_ALEN, &bssid[i * ETH_ALEN])) goto fail; wpa_printf(MSG_DEBUG, "nl80211: BSSID[%u]: " MACSTR, i, MAC2STR(&bssid[i * ETH_ALEN])); nla_nest_end(msg, attr); } nla_nest_end(msg, nlbssids); nla_nest_end(msg, params); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); fail: nlmsg_free(msg); return -1; } static int nl80211_add_sta_node(void *priv, const u8 *addr, u16 auth_alg) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *params; if (!drv->add_sta_node_vendor_cmd_avail) return -EOPNOTSUPP; wpa_printf(MSG_DEBUG, "nl80211: Add STA node"); if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_ADD_STA_NODE) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || (addr && nla_put(msg, QCA_WLAN_VENDOR_ATTR_ADD_STA_NODE_MAC_ADDR, ETH_ALEN, addr)) || nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ADD_STA_NODE_AUTH_ALGO, auth_alg)) { nlmsg_free(msg); wpa_printf(MSG_ERROR, "%s: err in adding vendor_cmd and vendor_data", __func__); return -1; } nla_nest_end(msg, params); return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } #endif /* CONFIG_DRIVER_NL80211_QCA */ static int nl80211_set_mac_addr(void *priv, const u8 *addr) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; int new_addr = addr != NULL; if (TEST_FAIL()) return -1; if (!addr) addr = drv->perm_addr; if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0) return -1; if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0) { wpa_printf(MSG_DEBUG, "nl80211: failed to set_mac_addr for %s to " MACSTR, bss->ifname, MAC2STR(addr)); if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not restore interface UP after failed set_mac_addr"); } return -1; } wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR, bss->ifname, MAC2STR(addr)); drv->addr_changed = new_addr; os_memcpy(bss->addr, addr, ETH_ALEN); if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Could not restore interface UP after set_mac_addr"); } return 0; } #ifdef CONFIG_MESH static int wpa_driver_nl80211_init_mesh(void *priv) { if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) { wpa_printf(MSG_INFO, "nl80211: Failed to set interface into mesh mode"); return -1; } return 0; } static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id, size_t mesh_id_len) { if (mesh_id) { wpa_printf(MSG_DEBUG, " * Mesh ID (SSID)=%s", wpa_ssid_txt(mesh_id, mesh_id_len)); return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id); } return 0; } static int nl80211_put_mesh_config(struct nl_msg *msg, struct wpa_driver_mesh_bss_params *params) { struct nlattr *container; container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); if (!container) return -1; if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) && nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, params->auto_plinks)) || ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) && nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, params->max_peer_links)) || ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD) && nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, params->rssi_threshold))) return -1; /* * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because * the timer could disconnect stations even in that case. */ if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) && nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, params->peer_link_timeout)) { wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT"); return -1; } if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) && nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) { wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE"); return -1; } nla_nest_end(msg, container); return 0; } static int nl80211_join_mesh(struct i802_bss *bss, struct wpa_driver_mesh_join_params *params) { struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *container; int ret = -1; wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH); if (!msg || nl80211_put_freq_params(msg, ¶ms->freq) || nl80211_put_basic_rates(msg, params->basic_rates) || nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) || nl80211_put_beacon_int(msg, params->beacon_int) || nl80211_put_dtim_period(msg, params->dtim_period)) goto fail; wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags); if (params->handle_dfs && nla_put_flag(msg, NL80211_ATTR_HANDLE_DFS)) goto fail; container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP); if (!container) goto fail; if (params->ies) { wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len); if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len, params->ies)) goto fail; } /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */ if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) { if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) || nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH)) goto fail; } if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) && nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE)) goto fail; if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) && nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM)) goto fail; nla_nest_end(msg, container); params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS; params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT; params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS; if (nl80211_put_mesh_config(msg, ¶ms->conf) < 0) goto fail; ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(bss), 1, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)", ret, strerror(-ret)); goto fail; } ret = 0; drv->assoc_freq = bss->freq = params->freq.freq; wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully"); fail: nlmsg_free(msg); return ret; } static int wpa_driver_nl80211_join_mesh(void *priv, struct wpa_driver_mesh_join_params *params) { struct i802_bss *bss = priv; int ret, timeout; timeout = params->conf.peer_link_timeout; /* Disable kernel inactivity timer */ if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) params->conf.peer_link_timeout = 0; ret = nl80211_join_mesh(bss, params); if (ret == -EINVAL && params->conf.peer_link_timeout == 0) { wpa_printf(MSG_DEBUG, "nl80211: Mesh join retry for peer_link_timeout"); /* * Old kernel does not support setting * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds * into future from peer_link_timeout. */ params->conf.peer_link_timeout = timeout + 60; ret = nl80211_join_mesh(priv, params); } params->conf.peer_link_timeout = timeout; return ret; } static int wpa_driver_nl80211_leave_mesh(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH); ret = send_and_recv_msgs_owner(drv, msg, get_connect_handle(bss), 0, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)", ret, strerror(-ret)); } else { wpa_printf(MSG_DEBUG, "nl80211: mesh leave request send successfully"); } if (wpa_driver_nl80211_set_mode(drv->first_bss, NL80211_IFTYPE_STATION)) { wpa_printf(MSG_INFO, "nl80211: Failed to set interface into station mode"); } return ret; } static int nl80211_probe_mesh_link(void *priv, const u8 *addr, const u8 *eth, size_t len) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_PROBE_MESH_LINK); if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || nla_put(msg, NL80211_ATTR_FRAME, len, eth)) { nlmsg_free(msg); return -ENOBUFS; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: mesh link probe to " MACSTR " failed: ret=%d (%s)", MAC2STR(addr), ret, strerror(-ret)); } else { wpa_printf(MSG_DEBUG, "nl80211: Mesh link to " MACSTR " probed successfully", MAC2STR(addr)); } return ret; } #endif /* CONFIG_MESH */ static int wpa_driver_br_add_ip_neigh(void *priv, u8 version, const u8 *ipaddr, int prefixlen, const u8 *addr) { #ifdef CONFIG_LIBNL3_ROUTE struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct rtnl_neigh *rn; struct nl_addr *nl_ipaddr = NULL; struct nl_addr *nl_lladdr = NULL; int family, addrsize; int res; if (!ipaddr || prefixlen == 0 || !addr) return -EINVAL; if (bss->br_ifindex == 0) { wpa_printf(MSG_DEBUG, "nl80211: bridge must be set before adding an ip neigh to it"); return -1; } if (!drv->rtnl_sk) { wpa_printf(MSG_DEBUG, "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); return -1; } if (version == 4) { family = AF_INET; addrsize = 4; } else if (version == 6) { family = AF_INET6; addrsize = 16; } else { return -EINVAL; } rn = rtnl_neigh_alloc(); if (rn == NULL) return -ENOMEM; /* set the destination ip address for neigh */ nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); if (nl_ipaddr == NULL) { wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); res = -ENOMEM; goto errout; } nl_addr_set_prefixlen(nl_ipaddr, prefixlen); res = rtnl_neigh_set_dst(rn, nl_ipaddr); if (res) { wpa_printf(MSG_DEBUG, "nl80211: neigh set destination addr failed"); goto errout; } /* set the corresponding lladdr for neigh */ nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN); if (nl_lladdr == NULL) { wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed"); res = -ENOMEM; goto errout; } rtnl_neigh_set_lladdr(rn, nl_lladdr); rtnl_neigh_set_ifindex(rn, bss->br_ifindex); rtnl_neigh_set_state(rn, NUD_PERMANENT); res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE); if (res) { wpa_printf(MSG_DEBUG, "nl80211: Adding bridge ip neigh failed: %s", nl_geterror(res)); } errout: if (nl_lladdr) nl_addr_put(nl_lladdr); if (nl_ipaddr) nl_addr_put(nl_ipaddr); if (rn) rtnl_neigh_put(rn); return res; #else /* CONFIG_LIBNL3_ROUTE */ return -1; #endif /* CONFIG_LIBNL3_ROUTE */ } static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version, const u8 *ipaddr) { #ifdef CONFIG_LIBNL3_ROUTE struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct rtnl_neigh *rn; struct nl_addr *nl_ipaddr; int family, addrsize; int res; if (!ipaddr) return -EINVAL; if (version == 4) { family = AF_INET; addrsize = 4; } else if (version == 6) { family = AF_INET6; addrsize = 16; } else { return -EINVAL; } if (bss->br_ifindex == 0) { wpa_printf(MSG_DEBUG, "nl80211: bridge must be set to delete an ip neigh"); return -1; } if (!drv->rtnl_sk) { wpa_printf(MSG_DEBUG, "nl80211: nl_sock for NETLINK_ROUTE is not initialized"); return -1; } rn = rtnl_neigh_alloc(); if (rn == NULL) return -ENOMEM; /* set the destination ip address for neigh */ nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize); if (nl_ipaddr == NULL) { wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed"); res = -ENOMEM; goto errout; } res = rtnl_neigh_set_dst(rn, nl_ipaddr); if (res) { wpa_printf(MSG_DEBUG, "nl80211: neigh set destination addr failed"); goto errout; } rtnl_neigh_set_ifindex(rn, bss->br_ifindex); res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0); if (res) { wpa_printf(MSG_DEBUG, "nl80211: Deleting bridge ip neigh failed: %s", nl_geterror(res)); } errout: if (nl_ipaddr) nl_addr_put(nl_ipaddr); if (rn) rtnl_neigh_put(rn); return res; #else /* CONFIG_LIBNL3_ROUTE */ return -1; #endif /* CONFIG_LIBNL3_ROUTE */ } static int linux_write_system_file(const char *path, unsigned int val) { char buf[50]; int fd, len; len = os_snprintf(buf, sizeof(buf), "%u\n", val); if (os_snprintf_error(sizeof(buf), len)) return -1; fd = open(path, O_WRONLY); if (fd < 0) return -1; if (write(fd, buf, len) < 0) { wpa_printf(MSG_DEBUG, "nl80211: Failed to write Linux system file: %s with the value of %d", path, val); close(fd); return -1; } close(fd); return 0; } static const char * drv_br_port_attr_str(enum drv_br_port_attr attr) { switch (attr) { case DRV_BR_PORT_ATTR_PROXYARP: return "proxyarp_wifi"; case DRV_BR_PORT_ATTR_HAIRPIN_MODE: return "hairpin_mode"; } return NULL; } static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr, unsigned int val) { struct i802_bss *bss = priv; char path[128]; const char *attr_txt; attr_txt = drv_br_port_attr_str(attr); if (attr_txt == NULL) return -EINVAL; os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s", bss->ifname, attr_txt); if (linux_write_system_file(path, val)) return -1; return 0; } static const char * drv_br_net_param_str(enum drv_br_net_param param) { switch (param) { case DRV_BR_NET_PARAM_GARP_ACCEPT: return "arp_accept"; default: return NULL; } } static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param, unsigned int val) { struct i802_bss *bss = priv; char path[128]; const char *param_txt; int ip_version = 4; if (param == DRV_BR_MULTICAST_SNOOPING) { os_snprintf(path, sizeof(path), "/sys/devices/virtual/net/%s/bridge/multicast_snooping", bss->brname); goto set_val; } param_txt = drv_br_net_param_str(param); if (param_txt == NULL) return -EINVAL; switch (param) { case DRV_BR_NET_PARAM_GARP_ACCEPT: ip_version = 4; break; default: return -EINVAL; } os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s", ip_version, bss->brname, param_txt); set_val: if (linux_write_system_file(path, val)) return -1; return 0; } #ifdef CONFIG_DRIVER_NL80211_QCA static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode) { switch (hw_mode) { case HOSTAPD_MODE_IEEE80211B: return QCA_ACS_MODE_IEEE80211B; case HOSTAPD_MODE_IEEE80211G: return QCA_ACS_MODE_IEEE80211G; case HOSTAPD_MODE_IEEE80211A: return QCA_ACS_MODE_IEEE80211A; case HOSTAPD_MODE_IEEE80211AD: return QCA_ACS_MODE_IEEE80211AD; case HOSTAPD_MODE_IEEE80211ANY: return QCA_ACS_MODE_IEEE80211ANY; default: return -1; } } static int add_acs_ch_list(struct nl_msg *msg, const int *freq_list) { int num_channels = 0, num_freqs; u8 *ch_list; enum hostapd_hw_mode hw_mode; int ret = 0; int i; if (!freq_list) return 0; num_freqs = int_array_len(freq_list); ch_list = os_malloc(sizeof(u8) * num_freqs); if (!ch_list) return -1; for (i = 0; i < num_freqs; i++) { const int freq = freq_list[i]; if (freq == 0) break; /* Send 2.4 GHz and 5 GHz channels with * QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST to maintain backwards * compatibility. */ if (!(freq >= 2412 && freq <= 2484) && !(freq >= 5180 && freq <= 5900)) continue; hw_mode = ieee80211_freq_to_chan(freq, &ch_list[num_channels]); if (hw_mode != NUM_HOSTAPD_MODES) num_channels++; } if (num_channels) ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, num_channels, ch_list); os_free(ch_list); return ret; } static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list) { int i, len, ret; u32 *freqs; if (!freq_list) return 0; len = int_array_len(freq_list); freqs = os_malloc(sizeof(u32) * len); if (!freqs) return -1; for (i = 0; i < len; i++) freqs[i] = freq_list[i]; ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST, sizeof(u32) * len, freqs); os_free(freqs); return ret; } static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *data; int ret; int mode; mode = hw_mode_to_qca_acs(params->hw_mode); if (mode < 0) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_DO_ACS) || !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) || (params->ht_enabled && nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) || (params->ht40_enabled && nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) || (params->vht_enabled && nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) || nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH, params->ch_width) || add_acs_ch_list(msg, params->freq_list) || add_acs_freq_list(msg, params->freq_list) || (params->edmg_enabled && nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_EDMG_ENABLED))) { nlmsg_free(msg); return -ENOBUFS; } nla_nest_end(msg, data); wpa_printf(MSG_DEBUG, "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d EDMG: %d", params->hw_mode, params->ht_enabled, params->ht40_enabled, params->vht_enabled, params->ch_width, params->edmg_enabled); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Failed to invoke driver ACS function: %s", strerror(-ret)); } return ret; } static int nl80211_set_band(void *priv, u32 band_mask) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *data; int ret; enum qca_set_band qca_band_value; u32 qca_band_mask = QCA_SETBAND_AUTO; if (!drv->setband_vendor_cmd_avail || (band_mask > (WPA_SETBAND_2G | WPA_SETBAND_5G | WPA_SETBAND_6G))) return -1; if (band_mask & WPA_SETBAND_5G) qca_band_mask |= QCA_SETBAND_5G; if (band_mask & WPA_SETBAND_2G) qca_band_mask |= QCA_SETBAND_2G; if (band_mask & WPA_SETBAND_6G) qca_band_mask |= QCA_SETBAND_6G; /* * QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE is a legacy interface hence make * it suite to its values (AUTO/5G/2G) for backwards compatibility. */ qca_band_value = ((qca_band_mask & QCA_SETBAND_5G) && (qca_band_mask & QCA_SETBAND_2G)) ? QCA_SETBAND_AUTO : qca_band_mask & ~QCA_SETBAND_6G; wpa_printf(MSG_DEBUG, "nl80211: QCA_BAND_MASK = 0x%x, QCA_BAND_VALUE = %d", qca_band_mask, qca_band_value); if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_SETBAND) || !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band_value) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_MASK, qca_band_mask)) { nlmsg_free(msg); return -ENOBUFS; } nla_nest_end(msg, data); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Driver setband function failed: %s", strerror(-ret)); } return ret; } struct nl80211_pcl { unsigned int num; unsigned int *freq_list; }; static int preferred_freq_info_handler(struct nl_msg *msg, void *arg) { struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nl80211_pcl *param = arg; struct nlattr *nl_vend, *attr; enum qca_iface_type iface_type; struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; unsigned int num, max_num; u32 *freqs; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); nl_vend = tb[NL80211_ATTR_VENDOR_DATA]; if (!nl_vend) return NL_SKIP; nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, nla_data(nl_vend), nla_len(nl_vend), NULL); attr = tb_vendor[ QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE]; if (!attr) { wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found"); param->num = 0; return NL_SKIP; } iface_type = (enum qca_iface_type) nla_get_u32(attr); wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d", iface_type); attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST]; if (!attr) { wpa_printf(MSG_ERROR, "nl80211: preferred_freq_list couldn't be found"); param->num = 0; return NL_SKIP; } /* * param->num has the maximum number of entries for which there * is room in the freq_list provided by the caller. */ freqs = nla_data(attr); max_num = nla_len(attr) / sizeof(u32); if (max_num > param->num) max_num = param->num; for (num = 0; num < max_num; num++) param->freq_list[num] = freqs[num]; param->num = num; return NL_SKIP; } static int nl80211_get_pref_freq_list(void *priv, enum wpa_driver_if_type if_type, unsigned int *num, unsigned int *freq_list) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; unsigned int i; struct nlattr *params; struct nl80211_pcl param; enum qca_iface_type iface_type; if (!drv->get_pref_freq_list) return -1; switch (if_type) { case WPA_IF_STATION: iface_type = QCA_IFACE_TYPE_STA; break; case WPA_IF_AP_BSS: iface_type = QCA_IFACE_TYPE_AP; break; case WPA_IF_P2P_GO: iface_type = QCA_IFACE_TYPE_P2P_GO; break; case WPA_IF_P2P_CLIENT: iface_type = QCA_IFACE_TYPE_P2P_CLIENT; break; case WPA_IF_IBSS: iface_type = QCA_IFACE_TYPE_IBSS; break; case WPA_IF_TDLS: iface_type = QCA_IFACE_TYPE_TDLS; break; default: return -1; } param.num = *num; param.freq_list = freq_list; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE, iface_type)) { wpa_printf(MSG_ERROR, "%s: err in adding vendor_cmd and vendor_data", __func__); nlmsg_free(msg); return -1; } nla_nest_end(msg, params); os_memset(freq_list, 0, *num * sizeof(freq_list[0])); ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, ¶m, NULL, NULL); if (ret) { wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs", __func__); return ret; } *num = param.num; for (i = 0; i < *num; i++) { wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d", i, freq_list[i]); } return 0; } static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret; struct nlattr *params; if (!drv->set_prob_oper_freq) return -1; wpa_printf(MSG_DEBUG, "nl80211: Set P2P probable operating freq %u for ifindex %d", freq, bss->ifindex); if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) || !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE, QCA_IFACE_TYPE_P2P_CLIENT) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ, freq)) { wpa_printf(MSG_ERROR, "%s: err in adding vendor_cmd and vendor_data", __func__); nlmsg_free(msg); return -1; } nla_nest_end(msg, params); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs", __func__); return ret; } nlmsg_free(msg); return 0; } static int nl80211_p2p_lo_start(void *priv, unsigned int freq, unsigned int period, unsigned int interval, unsigned int count, const u8 *device_types, size_t dev_types_len, const u8 *ies, size_t ies_len) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *container; int ret; wpa_printf(MSG_DEBUG, "nl80211: Start P2P Listen offload: freq=%u, period=%u, interval=%u, count=%u", freq, period, interval, count); if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START)) goto fail; container = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); if (!container) goto fail; if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL, freq) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD, period) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL, interval) || nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT, count) || nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES, dev_types_len, device_types) || nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE, ies_len, ies)) goto fail; nla_nest_end(msg, container); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: Failed to send P2P Listen offload vendor command"); goto fail; } return 0; fail: nlmsg_free(msg); return -1; } static int nl80211_p2p_lo_stop(void *priv) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; wpa_printf(MSG_DEBUG, "nl80211: Stop P2P Listen offload"); if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP)) { nlmsg_free(msg); return -1; } return send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); } static int nl80211_set_tdls_mode(void *priv, int tdls_external_control) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *params; int ret; u32 tdls_mode; wpa_printf(MSG_DEBUG, "nl80211: Set TDKS mode: tdls_external_control=%d", tdls_external_control); if (tdls_external_control == 1) tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_IMPLICIT | QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL; else tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXPLICIT; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS)) goto fail; params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); if (!params) goto fail; if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TDLS_CONFIG_TRIGGER_MODE, tdls_mode)) goto fail; nla_nest_end(msg, params); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_ERROR, "nl80211: Set TDLS mode failed: ret=%d (%s)", ret, strerror(-ret)); goto fail; } return 0; fail: nlmsg_free(msg); return -1; } #ifdef CONFIG_MBO static enum mbo_transition_reject_reason nl80211_mbo_reject_reason_mapping(enum qca_wlan_btm_candidate_status status) { switch (status) { case QCA_STATUS_REJECT_EXCESSIVE_FRAME_LOSS_EXPECTED: return MBO_TRANSITION_REJECT_REASON_FRAME_LOSS; case QCA_STATUS_REJECT_EXCESSIVE_DELAY_EXPECTED: return MBO_TRANSITION_REJECT_REASON_DELAY; case QCA_STATUS_REJECT_INSUFFICIENT_QOS_CAPACITY: return MBO_TRANSITION_REJECT_REASON_QOS_CAPACITY; case QCA_STATUS_REJECT_LOW_RSSI: return MBO_TRANSITION_REJECT_REASON_RSSI; case QCA_STATUS_REJECT_HIGH_INTERFERENCE: return MBO_TRANSITION_REJECT_REASON_INTERFERENCE; case QCA_STATUS_REJECT_UNKNOWN: default: return MBO_TRANSITION_REJECT_REASON_UNSPECIFIED; } } static void nl80211_parse_btm_candidate_info(struct candidate_list *candidate, struct nlattr *tb[], int num) { enum qca_wlan_btm_candidate_status status; char buf[50]; os_memcpy(candidate->bssid, nla_data(tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID]), ETH_ALEN); status = nla_get_u32( tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS]); candidate->is_accept = status == QCA_STATUS_ACCEPT; candidate->reject_reason = nl80211_mbo_reject_reason_mapping(status); if (candidate->is_accept) os_snprintf(buf, sizeof(buf), "Accepted"); else os_snprintf(buf, sizeof(buf), "Rejected, Reject_reason: %d", candidate->reject_reason); wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR " %s", num, MAC2STR(candidate->bssid), buf); } static int nl80211_get_bss_transition_status_handler(struct nl_msg *msg, void *arg) { struct wpa_bss_candidate_info *info = arg; struct candidate_list *candidate = info->candidates; struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1]; struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1]; static struct nla_policy policy[ QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1] = { [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] = { .minlen = ETH_ALEN }, [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS] = { .type = NLA_U32, }, }; struct nlattr *attr; int rem; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); u8 num; num = info->num; /* number of candidates sent to driver */ info->num = 0; nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (!tb_msg[NL80211_ATTR_VENDOR_DATA] || nla_parse_nested(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX, tb_msg[NL80211_ATTR_VENDOR_DATA], NULL) || !tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO]) return NL_SKIP; wpa_printf(MSG_DEBUG, "nl80211: WNM Candidate list received from driver"); nla_for_each_nested(attr, tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO], rem) { if (info->num >= num || nla_parse_nested( tb, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX, attr, policy) || !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] || !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS]) break; nl80211_parse_btm_candidate_info(candidate, tb, info->num); candidate++; info->num++; } return NL_SKIP; } static struct wpa_bss_candidate_info * nl80211_get_bss_transition_status(void *priv, struct wpa_bss_trans_info *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *attr, *attr1, *attr2; struct wpa_bss_candidate_info *info; u8 i; int ret; u8 *pos; if (!drv->fetch_bss_trans_status) return NULL; info = os_zalloc(sizeof(*info)); if (!info) return NULL; /* Allocate memory for number of candidates sent to driver */ info->candidates = os_calloc(params->n_candidates, sizeof(*info->candidates)); if (!info->candidates) { os_free(info); return NULL; } /* Copy the number of candidates being sent to driver. This is used in * nl80211_get_bss_transition_status_handler() to limit the number of * candidates that can be populated in info->candidates and will be * later overwritten with the actual number of candidates received from * the driver. */ info->num = params->n_candidates; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_FETCH_BSS_TRANSITION_STATUS)) goto fail; attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); if (!attr) goto fail; if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_BTM_MBO_TRANSITION_REASON, params->mbo_transition_reason)) goto fail; attr1 = nla_nest_start(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO); if (!attr1) goto fail; wpa_printf(MSG_DEBUG, "nl80211: WNM Candidate list info sending to driver: mbo_transition_reason: %d n_candidates: %d", params->mbo_transition_reason, params->n_candidates); pos = params->bssid; for (i = 0; i < params->n_candidates; i++) { wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR, i, MAC2STR(pos)); attr2 = nla_nest_start(msg, i); if (!attr2 || nla_put(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID, ETH_ALEN, pos)) goto fail; pos += ETH_ALEN; nla_nest_end(msg, attr2); } nla_nest_end(msg, attr1); nla_nest_end(msg, attr); ret = send_and_recv_msgs(drv, msg, nl80211_get_bss_transition_status_handler, info, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_ERROR, "nl80211: WNM Get BSS transition status failed: ret=%d (%s)", ret, strerror(-ret)); goto fail; } return info; fail: nlmsg_free(msg); os_free(info->candidates); os_free(info); return NULL; } /** * nl80211_ignore_assoc_disallow - Configure driver to ignore assoc_disallow * @priv: Pointer to private driver data from wpa_driver_nl80211_init() * @ignore_assoc_disallow: 0 to not ignore, 1 to ignore * Returns: 0 on success, -1 on failure */ static int nl80211_ignore_assoc_disallow(void *priv, int ignore_disallow) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *attr; int ret = -1; if (!drv->set_wifi_conf_vendor_cmd_avail) return -1; if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION)) goto fail; attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); if (!attr) goto fail; wpa_printf(MSG_DEBUG, "nl80211: Set ignore_assoc_disallow %d", ignore_disallow); if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_IGNORE_ASSOC_DISALLOWED, ignore_disallow)) goto fail; nla_nest_end(msg, attr); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_ERROR, "nl80211: Set ignore_assoc_disallow failed: ret=%d (%s)", ret, strerror(-ret)); goto fail; } fail: nlmsg_free(msg); return ret; } #endif /* CONFIG_MBO */ #endif /* CONFIG_DRIVER_NL80211_QCA */ #ifdef CONFIG_DRIVER_NL80211_BRCM static int wpa_driver_do_broadcom_acs(void *priv, struct drv_acs_params *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; struct nlattr *data; int freq_list_len; int ret = -1; freq_list_len = int_array_len(params->freq_list); wpa_printf(MSG_DEBUG, "%s: freq_list_len=%d", __func__, freq_list_len); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR); if (!msg || nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_BRCM) || nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, BRCM_VENDOR_SCMD_ACS) || !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) || nla_put_u8(msg, BRCM_VENDOR_ATTR_ACS_HW_MODE, params->hw_mode) || nla_put_u8(msg, BRCM_VENDOR_ATTR_ACS_HT_ENABLED, params->ht_enabled) || nla_put_u8(msg, BRCM_VENDOR_ATTR_ACS_HT40_ENABLED, params->ht40_enabled) || nla_put_u8(msg, BRCM_VENDOR_ATTR_ACS_VHT_ENABLED, params->vht_enabled) || nla_put_u16(msg, BRCM_VENDOR_ATTR_ACS_CHWIDTH, params->ch_width) || (freq_list_len > 0 && nla_put(msg, BRCM_VENDOR_ATTR_ACS_FREQ_LIST, sizeof(int) * freq_list_len, params->freq_list))) goto fail; nla_nest_end(msg, data); wpa_printf(MSG_DEBUG, "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d", params->hw_mode, params->ht_enabled, params->ht40_enabled, params->vht_enabled, params->ch_width); ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); if (ret) { wpa_printf(MSG_ERROR, "nl80211: BRCM Failed to invoke driver ACS function: %s", strerror(errno)); } msg = NULL; fail: nlmsg_free(msg); return ret; } #endif /* CONFIG_DRIVER_NL80211_BRCM */ static int nl80211_write_to_file(const char *name, unsigned int val) { int fd, len; char tmp[128]; int ret = 0; fd = open(name, O_RDWR); if (fd < 0) { int level; /* * Flags may not exist on older kernels, or while we're tearing * down a disappearing device. */ if (errno == ENOENT) { ret = 0; level = MSG_DEBUG; } else { ret = -1; level = MSG_ERROR; } wpa_printf(level, "nl80211: Failed to open %s: %s", name, strerror(errno)); return ret; } len = os_snprintf(tmp, sizeof(tmp), "%u\n", val); len = write(fd, tmp, len); if (len < 0) { ret = -1; wpa_printf(MSG_ERROR, "nl80211: Failed to write to %s: %s", name, strerror(errno)); } close(fd); return ret; } static int nl80211_configure_data_frame_filters(void *priv, u32 filter_flags) { struct i802_bss *bss = priv; char path[128]; int ret; /* P2P-Device has no netdev that can (or should) be configured here */ if (nl80211_get_ifmode(bss) == NL80211_IFTYPE_P2P_DEVICE) return 0; wpa_printf(MSG_DEBUG, "nl80211: Data frame filter flags=0x%x", filter_flags); /* Configure filtering of unicast frame encrypted using GTK */ ret = os_snprintf(path, sizeof(path), "/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast", bss->ifname); if (os_snprintf_error(sizeof(path), ret)) return -1; ret = nl80211_write_to_file(path, !!(filter_flags & WPA_DATA_FRAME_FILTER_FLAG_GTK)); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Failed to set IPv4 unicast in multicast filter"); return ret; } os_snprintf(path, sizeof(path), "/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast", bss->ifname); ret = nl80211_write_to_file(path, !!(filter_flags & WPA_DATA_FRAME_FILTER_FLAG_GTK)); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Failed to set IPv6 unicast in multicast filter"); return ret; } /* Configure filtering of unicast frame encrypted using GTK */ os_snprintf(path, sizeof(path), "/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp", bss->ifname); ret = nl80211_write_to_file(path, !!(filter_flags & WPA_DATA_FRAME_FILTER_FLAG_ARP)); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Failed set gratuitous ARP filter"); return ret; } /* Configure filtering of IPv6 NA frames */ os_snprintf(path, sizeof(path), "/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na", bss->ifname); ret = nl80211_write_to_file(path, !!(filter_flags & WPA_DATA_FRAME_FILTER_FLAG_NA)); if (ret) { wpa_printf(MSG_ERROR, "nl80211: Failed to set unsolicited NA filter"); return ret; } return 0; } static int nl80211_get_ext_capab(void *priv, enum wpa_driver_if_type type, const u8 **ext_capa, const u8 **ext_capa_mask, unsigned int *ext_capa_len) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; enum nl80211_iftype nlmode; unsigned int i; if (!ext_capa || !ext_capa_mask || !ext_capa_len) return -1; nlmode = wpa_driver_nl80211_if_type(type); /* By default, use the per-radio values */ *ext_capa = drv->extended_capa; *ext_capa_mask = drv->extended_capa_mask; *ext_capa_len = drv->extended_capa_len; /* Replace the default value if a per-interface type value exists */ for (i = 0; i < drv->num_iface_ext_capa; i++) { if (nlmode == drv->iface_ext_capa[i].iftype) { *ext_capa = drv->iface_ext_capa[i].ext_capa; *ext_capa_mask = drv->iface_ext_capa[i].ext_capa_mask; *ext_capa_len = drv->iface_ext_capa[i].ext_capa_len; break; } } return 0; } static int nl80211_update_connection_params( void *priv, struct wpa_driver_associate_params *params, enum wpa_drv_update_connect_params_mask mask) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret = -1; enum nl80211_auth_type type; /* Update Connection Params is intended for drivers that implement * internal SME and expect these updated connection params from * wpa_supplicant. Do not send this request for the drivers using * SME from wpa_supplicant. */ if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) return 0; msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_CONNECT_PARAMS); if (!msg) goto fail; wpa_printf(MSG_DEBUG, "nl80211: Update connection params (ifindex=%d)", drv->ifindex); if ((mask & WPA_DRV_UPDATE_ASSOC_IES) && params->wpa_ie) { if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie)) goto fail; wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); } if (mask & WPA_DRV_UPDATE_AUTH_TYPE) { type = get_nl_auth_type(params->auth_alg); if (type == NL80211_AUTHTYPE_MAX || nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type)) goto fail; wpa_printf(MSG_DEBUG, " * Auth Type %d", type); } if ((mask & WPA_DRV_UPDATE_FILS_ERP_INFO) && nl80211_put_fils_connect_params(drv, params, msg)) goto fail; ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Update connect params command failed: ret=%d (%s)", ret, strerror(-ret)); fail: nlmsg_free(msg); return ret; } static int nl80211_send_external_auth_status(void *priv, struct external_auth *params) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg = NULL; int ret = -1; /* External auth command/status is intended for drivers that implement * internal SME but want to offload authentication processing (e.g., * SAE) to hostapd/wpa_supplicant. Do not send the status to drivers * which do not support AP SME or use wpa_supplicant/hostapd SME. */ if ((is_ap_interface(drv->nlmode) && !bss->drv->device_ap_sme) || (drv->capa.flags & WPA_DRIVER_FLAGS_SME)) return -1; wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: External auth status: %u", params->status); msg = nl80211_drv_msg(drv, 0, NL80211_CMD_EXTERNAL_AUTH); if (!msg || nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, params->status) || (params->ssid && params->ssid_len && nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) || (params->pmkid && nla_put(msg, NL80211_ATTR_PMKID, PMKID_LEN, params->pmkid)) || (params->bssid && nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid))) goto fail; ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret) { wpa_printf(MSG_DEBUG, "nl80211: External Auth status update failed: ret=%d (%s)", ret, strerror(-ret)); goto fail; } fail: nlmsg_free(msg); return ret; } static int nl80211_set_4addr_mode(void *priv, const char *bridge_ifname, int val) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; struct nl_msg *msg; int ret = -ENOBUFS; wpa_printf(MSG_DEBUG, "nl80211: %s 4addr mode (bridge_ifname: %s)", val ? "Enable" : "Disable", bridge_ifname); msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE); if (!msg || nla_put_u8(msg, NL80211_ATTR_4ADDR, val)) goto fail; if (bridge_ifname[0] && bss->added_if_into_bridge && !val) { if (linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, bss->ifname)) { wpa_printf(MSG_ERROR, "nl80211: Failed to remove interface %s from bridge %s", bss->ifname, bridge_ifname); return -1; } bss->added_if_into_bridge = 0; } ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL); msg = NULL; if (ret && val && nl80211_get_4addr(bss) == 1) { wpa_printf(MSG_DEBUG, "nl80211: 4addr mode was already enabled"); ret = 0; } if (!ret) { if (bridge_ifname[0] && val && i802_check_bridge(drv, bss, bridge_ifname, bss->ifname) < 0) return -1; return 0; } fail: nlmsg_free(msg); wpa_printf(MSG_ERROR, "nl80211: Failed to enable/disable 4addr"); return ret; } #ifdef CONFIG_DPP static int nl80211_dpp_listen(void *priv, bool enable) { struct i802_bss *bss = priv; struct wpa_driver_nl80211_data *drv = bss->drv; u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); struct nl_sock *handle; if (!drv->multicast_registrations || !bss->nl_mgmt) return 0; /* cannot do more than hope broadcast RX works */ wpa_printf(MSG_DEBUG, "nl80211: Update DPP Public Action frame registration (%s multicast RX)", enable ? "enable" : "disable"); handle = (void *) (((intptr_t) bss->nl_mgmt) ^ ELOOP_SOCKET_INVALID); return nl80211_register_frame(bss, handle, type, (u8 *) "\x04\x09\x50\x6f\x9a\x1a", 6, enable); } #endif /* CONFIG_DPP */ const struct wpa_driver_ops wpa_driver_nl80211_ops = { .name = "nl80211", .desc = "Linux nl80211/cfg80211", .get_bssid = wpa_driver_nl80211_get_bssid, .get_ssid = wpa_driver_nl80211_get_ssid, .set_key = driver_nl80211_set_key, .scan2 = driver_nl80211_scan2, .sched_scan = wpa_driver_nl80211_sched_scan, .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, .get_scan_results2 = wpa_driver_nl80211_get_scan_results, .abort_scan = wpa_driver_nl80211_abort_scan, .deauthenticate = driver_nl80211_deauthenticate, .authenticate = driver_nl80211_authenticate, .associate = wpa_driver_nl80211_associate, .global_init = nl80211_global_init, .global_deinit = nl80211_global_deinit, .init2 = wpa_driver_nl80211_init, .deinit = driver_nl80211_deinit, .get_capa = wpa_driver_nl80211_get_capa, .set_operstate = wpa_driver_nl80211_set_operstate, .set_supp_port = wpa_driver_nl80211_set_supp_port, .set_country = wpa_driver_nl80211_set_country, .get_country = wpa_driver_nl80211_get_country, .set_ap = wpa_driver_nl80211_set_ap, .set_acl = wpa_driver_nl80211_set_acl, .if_add = wpa_driver_nl80211_if_add, .if_remove = driver_nl80211_if_remove, .send_mlme = driver_nl80211_send_mlme, .get_hw_feature_data = nl80211_get_hw_feature_data, .sta_add = wpa_driver_nl80211_sta_add, .sta_remove = driver_nl80211_sta_remove, .tx_control_port = nl80211_tx_control_port, .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, .sta_set_flags = wpa_driver_nl80211_sta_set_flags, .sta_set_airtime_weight = driver_nl80211_sta_set_airtime_weight, .hapd_init = i802_init, .hapd_deinit = i802_deinit, .set_wds_sta = i802_set_wds_sta, .get_seqnum = i802_get_seqnum, .flush = i802_flush, .get_inact_sec = i802_get_inact_sec, .sta_clear_stats = i802_sta_clear_stats, .set_rts = i802_set_rts, .set_frag = i802_set_frag, .set_tx_queue_params = i802_set_tx_queue_params, .set_sta_vlan = driver_nl80211_set_sta_vlan, .sta_deauth = i802_sta_deauth, .sta_disassoc = i802_sta_disassoc, .read_sta_data = driver_nl80211_read_sta_data, .set_freq = i802_set_freq, .send_action = driver_nl80211_send_action, .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, .remain_on_channel = wpa_driver_nl80211_remain_on_channel, .cancel_remain_on_channel = wpa_driver_nl80211_cancel_remain_on_channel, .probe_req_report = driver_nl80211_probe_req_report, .deinit_ap = wpa_driver_nl80211_deinit_ap, .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, .resume = wpa_driver_nl80211_resume, .signal_monitor = nl80211_signal_monitor, .signal_poll = nl80211_signal_poll, .channel_info = nl80211_channel_info, .set_param = nl80211_set_param, .get_radio_name = nl80211_get_radio_name, .add_pmkid = nl80211_add_pmkid, .remove_pmkid = nl80211_remove_pmkid, .flush_pmkid = nl80211_flush_pmkid, .set_rekey_info = nl80211_set_rekey_info, .poll_client = nl80211_poll_client, .set_p2p_powersave = nl80211_set_p2p_powersave, .start_dfs_cac = nl80211_start_radar_detection, .stop_ap = wpa_driver_nl80211_stop_ap, #ifdef CONFIG_TDLS .send_tdls_mgmt = nl80211_send_tdls_mgmt, .tdls_oper = nl80211_tdls_oper, .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch, .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch, #endif /* CONFIG_TDLS */ .update_ft_ies = wpa_driver_nl80211_update_ft_ies, .update_dh_ie = nl80211_update_dh_ie, .get_mac_addr = wpa_driver_nl80211_get_macaddr, .get_survey = wpa_driver_nl80211_get_survey, .status = wpa_driver_nl80211_status, .switch_channel = nl80211_switch_channel, #ifdef ANDROID_P2P .set_noa = wpa_driver_set_p2p_noa, .get_noa = wpa_driver_get_p2p_noa, .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, #endif /* ANDROID_P2P */ #ifdef ANDROID #ifndef ANDROID_LIB_STUB .driver_cmd = wpa_driver_nl80211_driver_cmd, #endif /* !ANDROID_LIB_STUB */ #endif /* ANDROID */ .vendor_cmd = nl80211_vendor_cmd, .set_qos_map = nl80211_set_qos_map, .get_wowlan = nl80211_get_wowlan, .set_wowlan = nl80211_set_wowlan, .set_mac_addr = nl80211_set_mac_addr, #ifdef CONFIG_MESH .init_mesh = wpa_driver_nl80211_init_mesh, .join_mesh = wpa_driver_nl80211_join_mesh, .leave_mesh = wpa_driver_nl80211_leave_mesh, .probe_mesh_link = nl80211_probe_mesh_link, #endif /* CONFIG_MESH */ .br_add_ip_neigh = wpa_driver_br_add_ip_neigh, .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh, .br_port_set_attr = wpa_driver_br_port_set_attr, .br_set_net_param = wpa_driver_br_set_net_param, .add_tx_ts = nl80211_add_ts, .del_tx_ts = nl80211_del_ts, .get_ifindex = nl80211_get_ifindex, #ifdef CONFIG_DRIVER_NL80211_QCA .roaming = nl80211_roaming, .disable_fils = nl80211_disable_fils, .do_acs = wpa_driver_do_acs, .set_band = nl80211_set_band, .get_pref_freq_list = nl80211_get_pref_freq_list, .set_prob_oper_freq = nl80211_set_prob_oper_freq, .p2p_lo_start = nl80211_p2p_lo_start, .p2p_lo_stop = nl80211_p2p_lo_stop, .set_default_scan_ies = nl80211_set_default_scan_ies, .set_tdls_mode = nl80211_set_tdls_mode, #ifdef CONFIG_MBO .get_bss_transition_status = nl80211_get_bss_transition_status, .ignore_assoc_disallow = nl80211_ignore_assoc_disallow, #endif /* CONFIG_MBO */ .set_bssid_tmp_disallow = nl80211_set_bssid_tmp_disallow, .add_sta_node = nl80211_add_sta_node, #endif /* CONFIG_DRIVER_NL80211_QCA */ #ifdef CONFIG_DRIVER_NL80211_BRCM .do_acs = wpa_driver_do_broadcom_acs, #endif /* CONFIG_DRIVER_NL80211_BRCM */ .configure_data_frame_filters = nl80211_configure_data_frame_filters, .get_ext_capab = nl80211_get_ext_capab, .update_connect_params = nl80211_update_connection_params, .send_external_auth_status = nl80211_send_external_auth_status, .set_4addr_mode = nl80211_set_4addr_mode, #ifdef CONFIG_DPP .dpp_listen = nl80211_dpp_listen, #endif /* CONFIG_DPP */ };