/* * Driver interaction with Linux nl80211/cfg80211 - Event processing * Copyright (c) 2002-2014, Jouni Malinen * 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 "utils/common.h" #include "utils/eloop.h" #include "common/qca-vendor.h" #include "common/qca-vendor-attr.h" #include "common/ieee802_11_defs.h" #include "common/ieee802_11_common.h" #include "driver_nl80211.h" static const char * nl80211_command_to_string(enum nl80211_commands cmd) { #define C2S(x) case x: return #x; switch (cmd) { C2S(NL80211_CMD_UNSPEC) C2S(NL80211_CMD_GET_WIPHY) C2S(NL80211_CMD_SET_WIPHY) C2S(NL80211_CMD_NEW_WIPHY) C2S(NL80211_CMD_DEL_WIPHY) C2S(NL80211_CMD_GET_INTERFACE) C2S(NL80211_CMD_SET_INTERFACE) C2S(NL80211_CMD_NEW_INTERFACE) C2S(NL80211_CMD_DEL_INTERFACE) C2S(NL80211_CMD_GET_KEY) C2S(NL80211_CMD_SET_KEY) C2S(NL80211_CMD_NEW_KEY) C2S(NL80211_CMD_DEL_KEY) C2S(NL80211_CMD_GET_BEACON) C2S(NL80211_CMD_SET_BEACON) C2S(NL80211_CMD_START_AP) C2S(NL80211_CMD_STOP_AP) C2S(NL80211_CMD_GET_STATION) C2S(NL80211_CMD_SET_STATION) C2S(NL80211_CMD_NEW_STATION) C2S(NL80211_CMD_DEL_STATION) C2S(NL80211_CMD_GET_MPATH) C2S(NL80211_CMD_SET_MPATH) C2S(NL80211_CMD_NEW_MPATH) C2S(NL80211_CMD_DEL_MPATH) C2S(NL80211_CMD_SET_BSS) C2S(NL80211_CMD_SET_REG) C2S(NL80211_CMD_REQ_SET_REG) C2S(NL80211_CMD_GET_MESH_CONFIG) C2S(NL80211_CMD_SET_MESH_CONFIG) C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) C2S(NL80211_CMD_GET_REG) C2S(NL80211_CMD_GET_SCAN) C2S(NL80211_CMD_TRIGGER_SCAN) C2S(NL80211_CMD_NEW_SCAN_RESULTS) C2S(NL80211_CMD_SCAN_ABORTED) C2S(NL80211_CMD_REG_CHANGE) C2S(NL80211_CMD_AUTHENTICATE) C2S(NL80211_CMD_ASSOCIATE) C2S(NL80211_CMD_DEAUTHENTICATE) C2S(NL80211_CMD_DISASSOCIATE) C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) C2S(NL80211_CMD_REG_BEACON_HINT) C2S(NL80211_CMD_JOIN_IBSS) C2S(NL80211_CMD_LEAVE_IBSS) C2S(NL80211_CMD_TESTMODE) C2S(NL80211_CMD_CONNECT) C2S(NL80211_CMD_ROAM) C2S(NL80211_CMD_DISCONNECT) C2S(NL80211_CMD_SET_WIPHY_NETNS) C2S(NL80211_CMD_GET_SURVEY) C2S(NL80211_CMD_NEW_SURVEY_RESULTS) C2S(NL80211_CMD_SET_PMKSA) C2S(NL80211_CMD_DEL_PMKSA) C2S(NL80211_CMD_FLUSH_PMKSA) C2S(NL80211_CMD_REMAIN_ON_CHANNEL) C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) C2S(NL80211_CMD_SET_TX_BITRATE_MASK) C2S(NL80211_CMD_REGISTER_FRAME) C2S(NL80211_CMD_FRAME) C2S(NL80211_CMD_FRAME_TX_STATUS) C2S(NL80211_CMD_SET_POWER_SAVE) C2S(NL80211_CMD_GET_POWER_SAVE) C2S(NL80211_CMD_SET_CQM) C2S(NL80211_CMD_NOTIFY_CQM) C2S(NL80211_CMD_SET_CHANNEL) C2S(NL80211_CMD_SET_WDS_PEER) C2S(NL80211_CMD_FRAME_WAIT_CANCEL) C2S(NL80211_CMD_JOIN_MESH) C2S(NL80211_CMD_LEAVE_MESH) C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) C2S(NL80211_CMD_UNPROT_DISASSOCIATE) C2S(NL80211_CMD_NEW_PEER_CANDIDATE) C2S(NL80211_CMD_GET_WOWLAN) C2S(NL80211_CMD_SET_WOWLAN) C2S(NL80211_CMD_START_SCHED_SCAN) C2S(NL80211_CMD_STOP_SCHED_SCAN) C2S(NL80211_CMD_SCHED_SCAN_RESULTS) C2S(NL80211_CMD_SCHED_SCAN_STOPPED) C2S(NL80211_CMD_SET_REKEY_OFFLOAD) C2S(NL80211_CMD_PMKSA_CANDIDATE) C2S(NL80211_CMD_TDLS_OPER) C2S(NL80211_CMD_TDLS_MGMT) C2S(NL80211_CMD_UNEXPECTED_FRAME) C2S(NL80211_CMD_PROBE_CLIENT) C2S(NL80211_CMD_REGISTER_BEACONS) C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) C2S(NL80211_CMD_SET_NOACK_MAP) C2S(NL80211_CMD_CH_SWITCH_NOTIFY) C2S(NL80211_CMD_START_P2P_DEVICE) C2S(NL80211_CMD_STOP_P2P_DEVICE) C2S(NL80211_CMD_CONN_FAILED) C2S(NL80211_CMD_SET_MCAST_RATE) C2S(NL80211_CMD_SET_MAC_ACL) C2S(NL80211_CMD_RADAR_DETECT) C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) C2S(NL80211_CMD_UPDATE_FT_IES) C2S(NL80211_CMD_FT_EVENT) C2S(NL80211_CMD_CRIT_PROTOCOL_START) C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) C2S(NL80211_CMD_GET_COALESCE) C2S(NL80211_CMD_SET_COALESCE) C2S(NL80211_CMD_CHANNEL_SWITCH) C2S(NL80211_CMD_VENDOR) C2S(NL80211_CMD_SET_QOS_MAP) C2S(NL80211_CMD_ADD_TX_TS) C2S(NL80211_CMD_DEL_TX_TS) default: return "NL80211_CMD_UNKNOWN"; } #undef C2S } static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, const u8 *frame, size_t len) { const struct ieee80211_mgmt *mgmt; union wpa_event_data event; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME) && drv->force_connect_cmd) { /* * Avoid reporting two association events that would confuse * the core code. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore auth event when using driver SME"); return; } wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); mgmt = (const struct ieee80211_mgmt *) frame; if (len < 24 + sizeof(mgmt->u.auth)) { wpa_printf(MSG_DEBUG, "nl80211: Too short association event " "frame"); return; } os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); os_memset(&event, 0, sizeof(event)); os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); event.auth.auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); if (len > 24 + sizeof(mgmt->u.auth)) { event.auth.ies = mgmt->u.auth.variable; event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); } wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); } static int nl80211_parse_wmm_params(struct nlattr *wmm_attr, struct wmm_params *wmm_params) { struct nlattr *wmm_info[NL80211_STA_WME_MAX + 1]; static struct nla_policy wme_policy[NL80211_STA_WME_MAX + 1] = { [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, }; if (!wmm_attr) { wpa_printf(MSG_DEBUG, "nl80211: WMM data missing"); return -1; } if (nla_parse_nested(wmm_info, NL80211_STA_WME_MAX, wmm_attr, wme_policy)) { wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested attributes"); return -1; } if (!wmm_info[NL80211_STA_WME_UAPSD_QUEUES]) return -1; wmm_params->uapsd_queues = nla_get_u8(wmm_info[NL80211_STA_WME_UAPSD_QUEUES]); wmm_params->info_bitmap |= WMM_PARAMS_UAPSD_QUEUES_INFO; return 0; } static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, const u8 *frame, size_t len, struct nlattr *wmm) { const struct ieee80211_mgmt *mgmt; union wpa_event_data event; u16 status; if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME) && drv->force_connect_cmd) { /* * Avoid reporting two association events that would confuse * the core code. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore assoc event when using driver SME"); return; } wpa_printf(MSG_DEBUG, "nl80211: Associate event"); mgmt = (const struct ieee80211_mgmt *) frame; if (len < 24 + sizeof(mgmt->u.assoc_resp)) { wpa_printf(MSG_DEBUG, "nl80211: Too short association event " "frame"); return; } status = le_to_host16(mgmt->u.assoc_resp.status_code); if (status != WLAN_STATUS_SUCCESS) { os_memset(&event, 0, sizeof(event)); event.assoc_reject.bssid = mgmt->bssid; if (len > 24 + sizeof(mgmt->u.assoc_resp)) { event.assoc_reject.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; event.assoc_reject.resp_ies_len = len - 24 - sizeof(mgmt->u.assoc_resp); } event.assoc_reject.status_code = status; wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); return; } drv->associated = 1; os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); os_memset(&event, 0, sizeof(event)); if (len > 24 + sizeof(mgmt->u.assoc_resp)) { event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; event.assoc_info.resp_ies_len = len - 24 - sizeof(mgmt->u.assoc_resp); } event.assoc_info.freq = drv->assoc_freq; nl80211_parse_wmm_params(wmm, &event.assoc_info.wmm_params); wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); } static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, enum nl80211_commands cmd, struct nlattr *status, struct nlattr *addr, struct nlattr *req_ie, struct nlattr *resp_ie, struct nlattr *authorized, struct nlattr *key_replay_ctr, struct nlattr *ptk_kck, struct nlattr *ptk_kek) { union wpa_event_data event; if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { /* * Avoid reporting two association events that would confuse * the core code. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " "when using userspace SME", cmd); return; } if (cmd == NL80211_CMD_CONNECT) wpa_printf(MSG_DEBUG, "nl80211: Connect event"); else if (cmd == NL80211_CMD_ROAM) wpa_printf(MSG_DEBUG, "nl80211: Roam event"); os_memset(&event, 0, sizeof(event)); if (cmd == NL80211_CMD_CONNECT && nla_get_u16(status) != WLAN_STATUS_SUCCESS) { if (addr) event.assoc_reject.bssid = nla_data(addr); if (resp_ie) { event.assoc_reject.resp_ies = nla_data(resp_ie); event.assoc_reject.resp_ies_len = nla_len(resp_ie); } event.assoc_reject.status_code = nla_get_u16(status); wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); return; } drv->associated = 1; if (addr) { os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); } if (req_ie) { event.assoc_info.req_ies = nla_data(req_ie); event.assoc_info.req_ies_len = nla_len(req_ie); } if (resp_ie) { event.assoc_info.resp_ies = nla_data(resp_ie); event.assoc_info.resp_ies_len = nla_len(resp_ie); } event.assoc_info.freq = nl80211_get_assoc_freq(drv); if (authorized && nla_get_u8(authorized)) { event.assoc_info.authorized = 1; wpa_printf(MSG_DEBUG, "nl80211: connection authorized"); } if (key_replay_ctr) { event.assoc_info.key_replay_ctr = nla_data(key_replay_ctr); event.assoc_info.key_replay_ctr_len = nla_len(key_replay_ctr); } if (ptk_kck) { event.assoc_info.ptk_kck = nla_data(ptk_kck); event.assoc_info.ptk_kck_len = nla_len(ptk_kck); } if (ptk_kek) { event.assoc_info.ptk_kek = nla_data(ptk_kek); event.assoc_info.ptk_kek_len = nla_len(ptk_kek); } wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); } static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, struct nlattr *reason, struct nlattr *addr, struct nlattr *by_ap) { union wpa_event_data data; unsigned int locally_generated = by_ap == NULL; if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { /* * Avoid reporting two disassociation events that could * confuse the core code. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " "event when using userspace SME"); return; } if (drv->ignore_next_local_disconnect) { drv->ignore_next_local_disconnect = 0; if (locally_generated) { wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " "event triggered during reassociation"); return; } wpa_printf(MSG_WARNING, "nl80211: Was expecting local " "disconnect but got another disconnect " "event first"); } wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); nl80211_mark_disconnected(drv); os_memset(&data, 0, sizeof(data)); if (reason) data.deauth_info.reason_code = nla_get_u16(reason); data.deauth_info.locally_generated = by_ap == NULL; wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); } static int calculate_chan_offset(int width, int freq, int cf1, int cf2) { int freq1 = 0; switch (convert2width(width)) { case CHAN_WIDTH_20_NOHT: case CHAN_WIDTH_20: return 0; case CHAN_WIDTH_40: freq1 = cf1 - 10; break; case CHAN_WIDTH_80: freq1 = cf1 - 30; break; case CHAN_WIDTH_160: freq1 = cf1 - 70; break; case CHAN_WIDTH_UNKNOWN: case CHAN_WIDTH_80P80: /* FIXME: implement this */ return 0; } return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; } static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, struct nlattr *ifindex, struct nlattr *freq, struct nlattr *type, struct nlattr *bw, struct nlattr *cf1, struct nlattr *cf2) { struct i802_bss *bss; union wpa_event_data data; int ht_enabled = 1; int chan_offset = 0; int ifidx; wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); if (!freq) return; ifidx = nla_get_u32(ifindex); bss = get_bss_ifindex(drv, ifidx); if (bss == NULL) { wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", ifidx); return; } if (type) { enum nl80211_channel_type ch_type = nla_get_u32(type); wpa_printf(MSG_DEBUG, "nl80211: Channel type: %d", ch_type); switch (ch_type) { case NL80211_CHAN_NO_HT: ht_enabled = 0; break; case NL80211_CHAN_HT20: break; case NL80211_CHAN_HT40PLUS: chan_offset = 1; break; case NL80211_CHAN_HT40MINUS: chan_offset = -1; break; } } else if (bw && cf1) { /* This can happen for example with VHT80 ch switch */ chan_offset = calculate_chan_offset(nla_get_u32(bw), nla_get_u32(freq), nla_get_u32(cf1), cf2 ? nla_get_u32(cf2) : 0); } else { wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); } os_memset(&data, 0, sizeof(data)); data.ch_switch.freq = nla_get_u32(freq); data.ch_switch.ht_enabled = ht_enabled; data.ch_switch.ch_offset = chan_offset; if (bw) data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); if (cf1) data.ch_switch.cf1 = nla_get_u32(cf1); if (cf2) data.ch_switch.cf2 = nla_get_u32(cf2); bss->freq = data.ch_switch.freq; wpa_supplicant_event(bss->ctx, EVENT_CH_SWITCH, &data); } static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, enum nl80211_commands cmd, struct nlattr *addr) { union wpa_event_data event; enum wpa_event_type ev; if (nla_len(addr) != ETH_ALEN) return; wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, cmd, MAC2STR((u8 *) nla_data(addr))); if (cmd == NL80211_CMD_AUTHENTICATE) ev = EVENT_AUTH_TIMED_OUT; else if (cmd == NL80211_CMD_ASSOCIATE) ev = EVENT_ASSOC_TIMED_OUT; else return; os_memset(&event, 0, sizeof(event)); os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); wpa_supplicant_event(drv->ctx, ev, &event); } static void mlme_event_mgmt(struct i802_bss *bss, struct nlattr *freq, struct nlattr *sig, const u8 *frame, size_t len) { struct wpa_driver_nl80211_data *drv = bss->drv; const struct ieee80211_mgmt *mgmt; union wpa_event_data event; u16 fc, stype; int ssi_signal = 0; int rx_freq = 0; wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); mgmt = (const struct ieee80211_mgmt *) frame; if (len < 24) { wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); return; } fc = le_to_host16(mgmt->frame_control); stype = WLAN_FC_GET_STYPE(fc); if (sig) ssi_signal = (s32) nla_get_u32(sig); os_memset(&event, 0, sizeof(event)); if (freq) { event.rx_mgmt.freq = nla_get_u32(freq); rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; } wpa_printf(MSG_DEBUG, "nl80211: RX frame sa=" MACSTR " freq=%d ssi_signal=%d stype=%u (%s) len=%u", MAC2STR(mgmt->sa), rx_freq, ssi_signal, stype, fc2str(fc), (unsigned int) len); event.rx_mgmt.frame = frame; event.rx_mgmt.frame_len = len; event.rx_mgmt.ssi_signal = ssi_signal; event.rx_mgmt.drv_priv = bss; wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); } static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, struct nlattr *cookie, const u8 *frame, size_t len, struct nlattr *ack) { union wpa_event_data event; const struct ieee80211_hdr *hdr; u16 fc; wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); if (!is_ap_interface(drv->nlmode)) { u64 cookie_val; if (!cookie) return; cookie_val = nla_get_u64(cookie); wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" " cookie=0%llx%s (ack=%d)", (long long unsigned int) cookie_val, cookie_val == drv->send_action_cookie ? " (match)" : " (unknown)", ack != NULL); if (cookie_val != drv->send_action_cookie) return; } hdr = (const struct ieee80211_hdr *) frame; fc = le_to_host16(hdr->frame_control); os_memset(&event, 0, sizeof(event)); event.tx_status.type = WLAN_FC_GET_TYPE(fc); event.tx_status.stype = WLAN_FC_GET_STYPE(fc); event.tx_status.dst = hdr->addr1; event.tx_status.data = frame; event.tx_status.data_len = len; event.tx_status.ack = ack != NULL; wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); } static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, enum wpa_event_type type, const u8 *frame, size_t len) { const struct ieee80211_mgmt *mgmt; union wpa_event_data event; const u8 *bssid = NULL; u16 reason_code = 0; if (type == EVENT_DEAUTH) wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); else wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); mgmt = (const struct ieee80211_mgmt *) frame; if (len >= 24) { bssid = mgmt->bssid; if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && !drv->associated && os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { /* * Avoid issues with some roaming cases where * disconnection event for the old AP may show up after * we have started connection with the new AP. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, MAC2STR(bssid), MAC2STR(drv->auth_attempt_bssid)); return; } if (drv->associated != 0 && os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { /* * We have presumably received this deauth as a * response to a clear_state_mismatch() outgoing * deauth. Don't let it take us offline! */ wpa_printf(MSG_DEBUG, "nl80211: Deauth received " "from Unknown BSSID " MACSTR " -- ignoring", MAC2STR(bssid)); return; } } nl80211_mark_disconnected(drv); os_memset(&event, 0, sizeof(event)); /* Note: Same offset for Reason Code in both frame subtypes */ if (len >= 24 + sizeof(mgmt->u.deauth)) reason_code = le_to_host16(mgmt->u.deauth.reason_code); if (type == EVENT_DISASSOC) { event.disassoc_info.locally_generated = !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); event.disassoc_info.addr = bssid; event.disassoc_info.reason_code = reason_code; if (frame + len > mgmt->u.disassoc.variable) { event.disassoc_info.ie = mgmt->u.disassoc.variable; event.disassoc_info.ie_len = frame + len - mgmt->u.disassoc.variable; } } else { if (drv->ignore_deauth_event) { wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event due to previous forced deauth-during-auth"); drv->ignore_deauth_event = 0; return; } event.deauth_info.locally_generated = !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); if (drv->ignore_next_local_deauth) { drv->ignore_next_local_deauth = 0; if (event.deauth_info.locally_generated) { wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth event triggered due to own deauth request"); return; } wpa_printf(MSG_WARNING, "nl80211: Was expecting local deauth but got another disconnect event first"); } event.deauth_info.addr = bssid; event.deauth_info.reason_code = reason_code; if (frame + len > mgmt->u.deauth.variable) { event.deauth_info.ie = mgmt->u.deauth.variable; event.deauth_info.ie_len = frame + len - mgmt->u.deauth.variable; } } wpa_supplicant_event(drv->ctx, type, &event); } static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, enum wpa_event_type type, const u8 *frame, size_t len) { const struct ieee80211_mgmt *mgmt; union wpa_event_data event; u16 reason_code = 0; if (type == EVENT_UNPROT_DEAUTH) wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); else wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); if (len < 24) return; mgmt = (const struct ieee80211_mgmt *) frame; os_memset(&event, 0, sizeof(event)); /* Note: Same offset for Reason Code in both frame subtypes */ if (len >= 24 + sizeof(mgmt->u.deauth)) reason_code = le_to_host16(mgmt->u.deauth.reason_code); if (type == EVENT_UNPROT_DISASSOC) { event.unprot_disassoc.sa = mgmt->sa; event.unprot_disassoc.da = mgmt->da; event.unprot_disassoc.reason_code = reason_code; } else { event.unprot_deauth.sa = mgmt->sa; event.unprot_deauth.da = mgmt->da; event.unprot_deauth.reason_code = reason_code; } wpa_supplicant_event(drv->ctx, type, &event); } static void mlme_event(struct i802_bss *bss, enum nl80211_commands cmd, struct nlattr *frame, struct nlattr *addr, struct nlattr *timed_out, struct nlattr *freq, struct nlattr *ack, struct nlattr *cookie, struct nlattr *sig, struct nlattr *wmm) { struct wpa_driver_nl80211_data *drv = bss->drv; const u8 *data; size_t len; if (timed_out && addr) { mlme_timeout_event(drv, cmd, addr); return; } if (frame == NULL) { wpa_printf(MSG_DEBUG, "nl80211: MLME event %d (%s) without frame data", cmd, nl80211_command_to_string(cmd)); return; } data = nla_data(frame); len = nla_len(frame); if (len < 4 + 2 * ETH_ALEN) { wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR ") - too short", cmd, nl80211_command_to_string(cmd), bss->ifname, MAC2STR(bss->addr)); return; } wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR ") A1=" MACSTR " A2=" MACSTR, cmd, nl80211_command_to_string(cmd), bss->ifname, MAC2STR(bss->addr), MAC2STR(data + 4), MAC2STR(data + 4 + ETH_ALEN)); if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " "for foreign address", bss->ifname); return; } wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", nla_data(frame), nla_len(frame)); switch (cmd) { case NL80211_CMD_AUTHENTICATE: mlme_event_auth(drv, nla_data(frame), nla_len(frame)); break; case NL80211_CMD_ASSOCIATE: mlme_event_assoc(drv, nla_data(frame), nla_len(frame), wmm); break; case NL80211_CMD_DEAUTHENTICATE: mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, nla_data(frame), nla_len(frame)); break; case NL80211_CMD_DISASSOCIATE: mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, nla_data(frame), nla_len(frame)); break; case NL80211_CMD_FRAME: mlme_event_mgmt(bss, freq, sig, nla_data(frame), nla_len(frame)); break; case NL80211_CMD_FRAME_TX_STATUS: mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), nla_len(frame), ack); break; case NL80211_CMD_UNPROT_DEAUTHENTICATE: mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, nla_data(frame), nla_len(frame)); break; case NL80211_CMD_UNPROT_DISASSOCIATE: mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, nla_data(frame), nla_len(frame)); break; default: break; } } static void mlme_event_michael_mic_failure(struct i802_bss *bss, struct nlattr *tb[]) { union wpa_event_data data; wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); os_memset(&data, 0, sizeof(data)); if (tb[NL80211_ATTR_MAC]) { wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", nla_data(tb[NL80211_ATTR_MAC]), nla_len(tb[NL80211_ATTR_MAC])); data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); } if (tb[NL80211_ATTR_KEY_SEQ]) { wpa_hexdump(MSG_DEBUG, "nl80211: TSC", nla_data(tb[NL80211_ATTR_KEY_SEQ]), nla_len(tb[NL80211_ATTR_KEY_SEQ])); } if (tb[NL80211_ATTR_KEY_TYPE]) { enum nl80211_key_type key_type = nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); if (key_type == NL80211_KEYTYPE_PAIRWISE) data.michael_mic_failure.unicast = 1; } else data.michael_mic_failure.unicast = 1; if (tb[NL80211_ATTR_KEY_IDX]) { u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); } wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); } static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, struct nlattr *tb[]) { unsigned int freq; if (tb[NL80211_ATTR_MAC] == NULL) { wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " "event"); return; } os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); drv->associated = 1; wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", MAC2STR(drv->bssid)); freq = nl80211_get_assoc_freq(drv); if (freq) { wpa_printf(MSG_DEBUG, "nl80211: IBSS on frequency %u MHz", freq); drv->first_bss->freq = freq; } wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); } static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, int cancel_event, struct nlattr *tb[]) { unsigned int freq, chan_type, duration; union wpa_event_data data; u64 cookie; if (tb[NL80211_ATTR_WIPHY_FREQ]) freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); else freq = 0; if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); else chan_type = 0; if (tb[NL80211_ATTR_DURATION]) duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); else duration = 0; if (tb[NL80211_ATTR_COOKIE]) cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); else cookie = 0; wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", cancel_event, freq, chan_type, duration, (long long unsigned int) cookie, cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); if (cookie != drv->remain_on_chan_cookie) return; /* not for us */ if (cancel_event) drv->pending_remain_on_chan = 0; os_memset(&data, 0, sizeof(data)); data.remain_on_channel.freq = freq; data.remain_on_channel.duration = duration; wpa_supplicant_event(drv->ctx, cancel_event ? EVENT_CANCEL_REMAIN_ON_CHANNEL : EVENT_REMAIN_ON_CHANNEL, &data); } static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, struct nlattr *tb[]) { union wpa_event_data data; os_memset(&data, 0, sizeof(data)); if (tb[NL80211_ATTR_IE]) { data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); } if (tb[NL80211_ATTR_IE_RIC]) { data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); } if (tb[NL80211_ATTR_MAC]) os_memcpy(data.ft_ies.target_ap, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, MAC2STR(data.ft_ies.target_ap)); wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); } static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, struct nlattr *tb[]) { union wpa_event_data event; struct nlattr *nl; int rem; struct scan_info *info; #define MAX_REPORT_FREQS 50 int freqs[MAX_REPORT_FREQS]; int num_freqs = 0; if (drv->scan_for_auth) { drv->scan_for_auth = 0; wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " "cfg80211 BSS entry"); wpa_driver_nl80211_authenticate_retry(drv); return; } os_memset(&event, 0, sizeof(event)); info = &event.scan_info; info->aborted = aborted; if (tb[NL80211_ATTR_SCAN_SSIDS]) { nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { struct wpa_driver_scan_ssid *s = &info->ssids[info->num_ssids]; s->ssid = nla_data(nl); s->ssid_len = nla_len(nl); wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", wpa_ssid_txt(s->ssid, s->ssid_len)); info->num_ssids++; if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) break; } } if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { char msg[200], *pos, *end; int res; pos = msg; end = pos + sizeof(msg); *pos = '\0'; nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) { freqs[num_freqs] = nla_get_u32(nl); res = os_snprintf(pos, end - pos, " %d", freqs[num_freqs]); if (res > 0 && end - pos > res) pos += res; num_freqs++; if (num_freqs == MAX_REPORT_FREQS - 1) break; } info->freqs = freqs; info->num_freqs = num_freqs; wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", msg); } wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); } static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, struct nlattr *tb[]) { static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, }; struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; enum nl80211_cqm_rssi_threshold_event event; union wpa_event_data ed; struct wpa_signal_info sig; int res; if (tb[NL80211_ATTR_CQM] == NULL || nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], cqm_policy)) { wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); return; } os_memset(&ed, 0, sizeof(ed)); if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { if (!tb[NL80211_ATTR_MAC]) return; os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); return; } if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) return; event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " "event: RSSI high"); ed.signal_change.above_threshold = 1; } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " "event: RSSI low"); ed.signal_change.above_threshold = 0; } else return; res = nl80211_get_link_signal(drv, &sig); if (res == 0) { ed.signal_change.current_signal = sig.current_signal; ed.signal_change.current_txrate = sig.current_txrate; wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", sig.current_signal, sig.current_txrate); } res = nl80211_get_link_noise(drv, &sig); if (res == 0) { ed.signal_change.current_noise = sig.current_noise; wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", sig.current_noise); } wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); } static void nl80211_new_peer_candidate(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { const u8 *addr; union wpa_event_data data; if (drv->nlmode != NL80211_IFTYPE_MESH_POINT) return; if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_IE]) return; addr = nla_data(tb[NL80211_ATTR_MAC]); wpa_printf(MSG_DEBUG, "nl80211: New peer candidate" MACSTR, MAC2STR(addr)); os_memset(&data, 0, sizeof(data)); data.mesh_peer.peer = addr; data.mesh_peer.ies = nla_data(tb[NL80211_ATTR_IE]); data.mesh_peer.ie_len = nla_len(tb[NL80211_ATTR_IE]); wpa_supplicant_event(drv->ctx, EVENT_NEW_PEER_CANDIDATE, &data); } static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { u8 *addr; union wpa_event_data data; if (tb[NL80211_ATTR_MAC] == NULL) return; addr = nla_data(tb[NL80211_ATTR_MAC]); wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { u8 *ies = NULL; size_t ies_len = 0; if (tb[NL80211_ATTR_IE]) { ies = nla_data(tb[NL80211_ATTR_IE]); ies_len = nla_len(tb[NL80211_ATTR_IE]); } wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); return; } if (drv->nlmode != NL80211_IFTYPE_ADHOC) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); } static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { u8 *addr; union wpa_event_data data; if (tb[NL80211_ATTR_MAC] == NULL) return; addr = nla_data(tb[NL80211_ATTR_MAC]); wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, MAC2STR(addr)); if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { drv_event_disassoc(drv->ctx, addr); return; } if (drv->nlmode != NL80211_IFTYPE_ADHOC) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); } static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { [NL80211_REKEY_DATA_KEK] = { .minlen = NL80211_KEK_LEN, .maxlen = NL80211_KEK_LEN, }, [NL80211_REKEY_DATA_KCK] = { .minlen = NL80211_KCK_LEN, .maxlen = NL80211_KCK_LEN, }, [NL80211_REKEY_DATA_REPLAY_CTR] = { .minlen = NL80211_REPLAY_CTR_LEN, .maxlen = NL80211_REPLAY_CTR_LEN, }, }; union wpa_event_data data; if (!tb[NL80211_ATTR_MAC]) return; if (!tb[NL80211_ATTR_REKEY_DATA]) return; if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) return; if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) return; os_memset(&data, 0, sizeof(data)); data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, MAC2STR(data.driver_gtk_rekey.bssid)); data.driver_gtk_rekey.replay_ctr = nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); } static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, [NL80211_PMKSA_CANDIDATE_BSSID] = { .minlen = ETH_ALEN, .maxlen = ETH_ALEN, }, [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, }; union wpa_event_data data; wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) return; if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) return; if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || !cand[NL80211_PMKSA_CANDIDATE_BSSID]) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.pmkid_candidate.bssid, nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); data.pmkid_candidate.index = nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); data.pmkid_candidate.preauth = cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); } static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { union wpa_event_data data; wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.client_poll.addr, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); } static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { union wpa_event_data data; wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { case NL80211_TDLS_SETUP: wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " MACSTR, MAC2STR(data.tdls.peer)); data.tdls.oper = TDLS_REQUEST_SETUP; break; case NL80211_TDLS_TEARDOWN: wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " MACSTR, MAC2STR(data.tdls.peer)); data.tdls.oper = TDLS_REQUEST_TEARDOWN; break; default: wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " "event"); return; } if (tb[NL80211_ATTR_REASON_CODE]) { data.tdls.reason_code = nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); } wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); } static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); } static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { union wpa_event_data data; u32 reason; wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) return; os_memset(&data, 0, sizeof(data)); os_memcpy(data.connect_failed_reason.addr, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); switch (reason) { case NL80211_CONN_FAIL_MAX_CLIENTS: wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); data.connect_failed_reason.code = MAX_CLIENT_REACHED; break; case NL80211_CONN_FAIL_BLOCKED_CLIENT: wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR " tried to connect", MAC2STR(data.connect_failed_reason.addr)); data.connect_failed_reason.code = BLOCKED_CLIENT; break; default: wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " "%u", reason); return; } wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); } static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { union wpa_event_data data; enum nl80211_radar_event event_type; if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) return; os_memset(&data, 0, sizeof(data)); data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); /* Check HT params */ if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { data.dfs_event.ht_enabled = 1; data.dfs_event.chan_offset = 0; switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { case NL80211_CHAN_NO_HT: data.dfs_event.ht_enabled = 0; break; case NL80211_CHAN_HT20: break; case NL80211_CHAN_HT40PLUS: data.dfs_event.chan_offset = 1; break; case NL80211_CHAN_HT40MINUS: data.dfs_event.chan_offset = -1; break; } } /* Get VHT params */ if (tb[NL80211_ATTR_CHANNEL_WIDTH]) data.dfs_event.chan_width = convert2width(nla_get_u32( tb[NL80211_ATTR_CHANNEL_WIDTH])); if (tb[NL80211_ATTR_CENTER_FREQ1]) data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); if (tb[NL80211_ATTR_CENTER_FREQ2]) data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", data.dfs_event.freq, data.dfs_event.ht_enabled, data.dfs_event.chan_offset, data.dfs_event.chan_width, data.dfs_event.cf1, data.dfs_event.cf2); switch (event_type) { case NL80211_RADAR_DETECTED: wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); break; case NL80211_RADAR_CAC_FINISHED: wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); break; case NL80211_RADAR_CAC_ABORTED: wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); break; case NL80211_RADAR_NOP_FINISHED: wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); break; default: wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " "received", event_type); break; } } static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, int wds) { struct wpa_driver_nl80211_data *drv = bss->drv; union wpa_event_data event; if (!tb[NL80211_ATTR_MAC]) return; os_memset(&event, 0, sizeof(event)); event.rx_from_unknown.bssid = bss->addr; event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); event.rx_from_unknown.wds = wds; wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); } static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, const u8 *data, size_t len) { u32 i, count; union wpa_event_data event; struct wpa_freq_range *range = NULL; const struct qca_avoid_freq_list *freq_range; freq_range = (const struct qca_avoid_freq_list *) data; if (len < sizeof(freq_range->count)) return; count = freq_range->count; if (len < sizeof(freq_range->count) + count * sizeof(struct qca_avoid_freq_range)) { wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", (unsigned int) len); return; } if (count > 0) { range = os_calloc(count, sizeof(struct wpa_freq_range)); if (range == NULL) return; } os_memset(&event, 0, sizeof(event)); for (i = 0; i < count; i++) { unsigned int idx = event.freq_range.num; range[idx].min = freq_range->range[i].start_freq; range[idx].max = freq_range->range[i].end_freq; wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", range[idx].min, range[idx].max); if (range[idx].min > range[idx].max) { wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); continue; } event.freq_range.num++; } event.freq_range.range = range; wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); os_free(range); } static void qca_nl80211_key_mgmt_auth(struct wpa_driver_nl80211_data *drv, const u8 *data, size_t len) { struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_MAX + 1]; u8 *bssid; wpa_printf(MSG_DEBUG, "nl80211: Key management roam+auth vendor event received"); if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_MAX, (struct nlattr *) data, len, NULL)) return; if (!tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID] || nla_len(tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID]) != ETH_ALEN || !tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE] || !tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE] || !tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED]) return; bssid = nla_data(tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID]); wpa_printf(MSG_DEBUG, " * roam BSSID " MACSTR, MAC2STR(bssid)); mlme_event_connect(drv, NL80211_CMD_ROAM, NULL, tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_KEY_REPLAY_CTR], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KCK], tb[QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KEK]); } static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, u32 subcmd, u8 *data, size_t len) { switch (subcmd) { case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: qca_nl80211_avoid_freq(drv, data, len); break; case QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH: qca_nl80211_key_mgmt_auth(drv, data, len); break; default: wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported QCA vendor event %u", subcmd); break; } } static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, struct nlattr **tb) { u32 vendor_id, subcmd, wiphy = 0; int wiphy_idx; u8 *data = NULL; size_t len = 0; if (!tb[NL80211_ATTR_VENDOR_ID] || !tb[NL80211_ATTR_VENDOR_SUBCMD]) return; vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); if (tb[NL80211_ATTR_WIPHY]) wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", wiphy, vendor_id, subcmd); if (tb[NL80211_ATTR_VENDOR_DATA]) { data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); } wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", wiphy, wiphy_idx); return; } switch (vendor_id) { case OUI_QCA: nl80211_vendor_event_qca(drv, subcmd, data, len); break; default: wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); break; } } static void nl80211_reg_change_event(struct wpa_driver_nl80211_data *drv, struct nlattr *tb[]) { union wpa_event_data data; enum nl80211_reg_initiator init; wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) return; os_memset(&data, 0, sizeof(data)); init = nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]); wpa_printf(MSG_DEBUG, " * initiator=%d", init); switch (init) { case NL80211_REGDOM_SET_BY_CORE: data.channel_list_changed.initiator = REGDOM_SET_BY_CORE; break; case NL80211_REGDOM_SET_BY_USER: data.channel_list_changed.initiator = REGDOM_SET_BY_USER; break; case NL80211_REGDOM_SET_BY_DRIVER: data.channel_list_changed.initiator = REGDOM_SET_BY_DRIVER; break; case NL80211_REGDOM_SET_BY_COUNTRY_IE: data.channel_list_changed.initiator = REGDOM_SET_BY_COUNTRY_IE; break; } if (tb[NL80211_ATTR_REG_TYPE]) { enum nl80211_reg_type type; type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); wpa_printf(MSG_DEBUG, " * type=%d", type); switch (type) { case NL80211_REGDOM_TYPE_COUNTRY: data.channel_list_changed.type = REGDOM_TYPE_COUNTRY; break; case NL80211_REGDOM_TYPE_WORLD: data.channel_list_changed.type = REGDOM_TYPE_WORLD; break; case NL80211_REGDOM_TYPE_CUSTOM_WORLD: data.channel_list_changed.type = REGDOM_TYPE_CUSTOM_WORLD; break; case NL80211_REGDOM_TYPE_INTERSECTION: data.channel_list_changed.type = REGDOM_TYPE_INTERSECTION; break; } } if (tb[NL80211_ATTR_REG_ALPHA2]) { os_strlcpy(data.channel_list_changed.alpha2, nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), sizeof(data.channel_list_changed.alpha2)); wpa_printf(MSG_DEBUG, " * alpha2=%s", data.channel_list_changed.alpha2); } wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); } static void do_process_drv_event(struct i802_bss *bss, int cmd, struct nlattr **tb) { struct wpa_driver_nl80211_data *drv = bss->drv; union wpa_event_data data; wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", cmd, nl80211_command_to_string(cmd), bss->ifname); if (cmd == NL80211_CMD_ROAM && drv->roam_auth_vendor_event_avail) { /* * Device will use roam+auth vendor event to indicate * roaming, so ignore the regular roam event. */ wpa_printf(MSG_DEBUG, "nl80211: Ignore roam event (cmd=%d), device will use vendor event roam+auth", cmd); return; } if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && (cmd == NL80211_CMD_NEW_SCAN_RESULTS || cmd == NL80211_CMD_SCAN_ABORTED)) { wpa_driver_nl80211_set_mode(drv->first_bss, drv->ap_scan_as_station); drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; } switch (cmd) { case NL80211_CMD_TRIGGER_SCAN: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); drv->scan_state = SCAN_STARTED; if (drv->scan_for_auth) { /* * Cannot indicate EVENT_SCAN_STARTED here since we skip * EVENT_SCAN_RESULTS in scan_for_auth case and the * upper layer implementation could get confused about * scanning state. */ wpa_printf(MSG_DEBUG, "nl80211: Do not indicate scan-start event due to internal scan_for_auth"); break; } wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); break; case NL80211_CMD_START_SCHED_SCAN: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); drv->scan_state = SCHED_SCAN_STARTED; break; case NL80211_CMD_SCHED_SCAN_STOPPED: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); drv->scan_state = SCHED_SCAN_STOPPED; wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); break; case NL80211_CMD_NEW_SCAN_RESULTS: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: New scan results available"); drv->scan_state = SCAN_COMPLETED; drv->scan_complete_events = 1; eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); send_scan_event(drv, 0, tb); break; case NL80211_CMD_SCHED_SCAN_RESULTS: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: New sched scan results available"); drv->scan_state = SCHED_SCAN_RESULTS; send_scan_event(drv, 0, tb); break; case NL80211_CMD_SCAN_ABORTED: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); drv->scan_state = SCAN_ABORTED; /* * Need to indicate that scan results are available in order * not to make wpa_supplicant stop its scanning. */ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); send_scan_event(drv, 1, tb); break; case NL80211_CMD_AUTHENTICATE: case NL80211_CMD_ASSOCIATE: case NL80211_CMD_DEAUTHENTICATE: case NL80211_CMD_DISASSOCIATE: case NL80211_CMD_FRAME_TX_STATUS: case NL80211_CMD_UNPROT_DEAUTHENTICATE: case NL80211_CMD_UNPROT_DISASSOCIATE: mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], tb[NL80211_ATTR_COOKIE], tb[NL80211_ATTR_RX_SIGNAL_DBM], tb[NL80211_ATTR_STA_WME]); break; case NL80211_CMD_CONNECT: case NL80211_CMD_ROAM: mlme_event_connect(drv, cmd, tb[NL80211_ATTR_STATUS_CODE], tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_REQ_IE], tb[NL80211_ATTR_RESP_IE], NULL, NULL, NULL, NULL); break; case NL80211_CMD_CH_SWITCH_NOTIFY: mlme_event_ch_switch(drv, tb[NL80211_ATTR_IFINDEX], tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], tb[NL80211_ATTR_CHANNEL_WIDTH], tb[NL80211_ATTR_CENTER_FREQ1], tb[NL80211_ATTR_CENTER_FREQ2]); break; case NL80211_CMD_DISCONNECT: mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_DISCONNECTED_BY_AP]); break; case NL80211_CMD_MICHAEL_MIC_FAILURE: mlme_event_michael_mic_failure(bss, tb); break; case NL80211_CMD_JOIN_IBSS: mlme_event_join_ibss(drv, tb); break; case NL80211_CMD_REMAIN_ON_CHANNEL: mlme_event_remain_on_channel(drv, 0, tb); break; case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: mlme_event_remain_on_channel(drv, 1, tb); break; case NL80211_CMD_NOTIFY_CQM: nl80211_cqm_event(drv, tb); break; case NL80211_CMD_REG_CHANGE: nl80211_reg_change_event(drv, tb); break; case NL80211_CMD_REG_BEACON_HINT: wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); os_memset(&data, 0, sizeof(data)); data.channel_list_changed.initiator = REGDOM_BEACON_HINT; wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, &data); break; case NL80211_CMD_NEW_STATION: nl80211_new_station_event(drv, tb); break; case NL80211_CMD_DEL_STATION: nl80211_del_station_event(drv, tb); break; case NL80211_CMD_SET_REKEY_OFFLOAD: nl80211_rekey_offload_event(drv, tb); break; case NL80211_CMD_PMKSA_CANDIDATE: nl80211_pmksa_candidate_event(drv, tb); break; case NL80211_CMD_PROBE_CLIENT: nl80211_client_probe_event(drv, tb); break; case NL80211_CMD_TDLS_OPER: nl80211_tdls_oper_event(drv, tb); break; case NL80211_CMD_CONN_FAILED: nl80211_connect_failed_event(drv, tb); break; case NL80211_CMD_FT_EVENT: mlme_event_ft_event(drv, tb); break; case NL80211_CMD_RADAR_DETECT: nl80211_radar_event(drv, tb); break; case NL80211_CMD_STOP_AP: nl80211_stop_ap(drv, tb); break; case NL80211_CMD_VENDOR: nl80211_vendor_event(drv, tb); break; case NL80211_CMD_NEW_PEER_CANDIDATE: nl80211_new_peer_candidate(drv, tb); break; default: wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " "(cmd=%d)", cmd); break; } } int process_drv_event(struct nl_msg *msg, void *arg) { struct wpa_driver_nl80211_data *drv = arg; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct i802_bss *bss; int ifidx = -1; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (tb[NL80211_ATTR_IFINDEX]) { ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); for (bss = drv->first_bss; bss; bss = bss->next) if (ifidx == -1 || ifidx == bss->ifindex) { do_process_drv_event(bss, gnlh->cmd, tb); return NL_SKIP; } wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", gnlh->cmd, ifidx); } else if (tb[NL80211_ATTR_WDEV]) { u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); for (bss = drv->first_bss; bss; bss = bss->next) { if (bss->wdev_id_set && wdev_id == bss->wdev_id) { do_process_drv_event(bss, gnlh->cmd, tb); return NL_SKIP; } } wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", gnlh->cmd, (long long unsigned int) wdev_id); } return NL_SKIP; } int process_global_event(struct nl_msg *msg, void *arg) { struct nl80211_global *global = arg; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *tb[NL80211_ATTR_MAX + 1]; struct wpa_driver_nl80211_data *drv, *tmp; int ifidx = -1; struct i802_bss *bss; u64 wdev_id = 0; int wdev_id_set = 0; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); if (tb[NL80211_ATTR_IFINDEX]) ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); else if (tb[NL80211_ATTR_WDEV]) { wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); wdev_id_set = 1; } dl_list_for_each_safe(drv, tmp, &global->interfaces, struct wpa_driver_nl80211_data, list) { for (bss = drv->first_bss; bss; bss = bss->next) { if ((ifidx == -1 && !wdev_id_set) || ifidx == bss->ifindex || (wdev_id_set && bss->wdev_id_set && wdev_id == bss->wdev_id)) { do_process_drv_event(bss, gnlh->cmd, tb); return NL_SKIP; } } } return NL_SKIP; } int process_bss_event(struct nl_msg *msg, void *arg) { struct i802_bss *bss = arg; struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); struct nlattr *tb[NL80211_ATTR_MAX + 1]; nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL); wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", gnlh->cmd, nl80211_command_to_string(gnlh->cmd), bss->ifname); switch (gnlh->cmd) { case NL80211_CMD_FRAME: case NL80211_CMD_FRAME_TX_STATUS: mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], tb[NL80211_ATTR_COOKIE], tb[NL80211_ATTR_RX_SIGNAL_DBM], tb[NL80211_ATTR_STA_WME]); break; case NL80211_CMD_UNEXPECTED_FRAME: nl80211_spurious_frame(bss, tb, 0); break; case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: nl80211_spurious_frame(bss, tb, 1); break; default: wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " "(cmd=%d)", gnlh->cmd); break; } return NL_SKIP; }