/* * hostapd / UNIX domain socket -based control interface * Copyright (c) 2004-2018, Jouni Malinen * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #include "utils/includes.h" #ifndef CONFIG_NATIVE_WINDOWS #ifdef CONFIG_TESTING_OPTIONS #ifdef __NetBSD__ #include #else #include #endif #include #endif /* CONFIG_TESTING_OPTIONS */ #include #include #include #ifdef CONFIG_CTRL_IFACE_UDP #include #endif /* CONFIG_CTRL_IFACE_UDP */ #include "utils/common.h" #include "utils/eloop.h" #include "utils/module_tests.h" #include "common/version.h" #include "common/ieee802_11_defs.h" #include "common/ctrl_iface_common.h" #ifdef CONFIG_DPP #include "common/dpp.h" #endif /* CONFIG_DPP */ #include "common/wpa_ctrl.h" #include "common/ptksa_cache.h" #include "crypto/tls.h" #include "drivers/driver.h" #include "eapol_auth/eapol_auth_sm.h" #include "radius/radius_client.h" #include "radius/radius_server.h" #include "l2_packet/l2_packet.h" #include "ap/hostapd.h" #include "ap/ap_config.h" #include "ap/ieee802_1x.h" #include "ap/wpa_auth.h" #include "ap/pmksa_cache_auth.h" #include "ap/ieee802_11.h" #include "ap/sta_info.h" #include "ap/wps_hostapd.h" #include "ap/ctrl_iface_ap.h" #include "ap/ap_drv_ops.h" #include "ap/hs20.h" #include "ap/wnm_ap.h" #include "ap/wpa_auth.h" #include "ap/beacon.h" #include "ap/neighbor_db.h" #include "ap/rrm.h" #include "ap/dpp_hostapd.h" #include "ap/dfs.h" #include "wps/wps_defs.h" #include "wps/wps.h" #include "fst/fst_ctrl_iface.h" #include "config_file.h" #include "ctrl_iface.h" #define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256 #ifdef CONFIG_CTRL_IFACE_UDP #define HOSTAPD_CTRL_IFACE_PORT 8877 #define HOSTAPD_CTRL_IFACE_PORT_LIMIT 50 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT 8878 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT 50 #endif /* CONFIG_CTRL_IFACE_UDP */ static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, enum wpa_msg_type type, const char *buf, size_t len); static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd, struct sockaddr_storage *from, socklen_t fromlen, const char *input) { return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen, input); } static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd, struct sockaddr_storage *from, socklen_t fromlen) { return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen); } static int hostapd_ctrl_iface_level(struct hostapd_data *hapd, struct sockaddr_storage *from, socklen_t fromlen, char *level) { return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level); } static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd, const char *txtaddr) { u8 addr[ETH_ALEN]; struct sta_info *sta; wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr); if (hwaddr_aton(txtaddr, addr)) return -1; sta = ap_get_sta(hapd, addr); if (sta) return 0; wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface " "notification", MAC2STR(addr)); sta = ap_sta_add(hapd, addr); if (sta == NULL) return -1; hostapd_new_assoc_sta(hapd, sta, 0); return 0; } #ifdef NEED_AP_MLME static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd, const char *txtaddr) { u8 addr[ETH_ALEN]; u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr); if (hwaddr_aton(txtaddr, addr) || os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) return -1; ieee802_11_send_sa_query_req(hapd, addr, trans_id); return 0; } #endif /* NEED_AP_MLME */ #ifdef CONFIG_WPS static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt) { char *pin = os_strchr(txt, ' '); char *timeout_txt; int timeout; u8 addr_buf[ETH_ALEN], *addr = NULL; char *pos; if (pin == NULL) return -1; *pin++ = '\0'; timeout_txt = os_strchr(pin, ' '); if (timeout_txt) { *timeout_txt++ = '\0'; timeout = atoi(timeout_txt); pos = os_strchr(timeout_txt, ' '); if (pos) { *pos++ = '\0'; if (hwaddr_aton(pos, addr_buf) == 0) addr = addr_buf; } } else timeout = 0; return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout); } static int hostapd_ctrl_iface_wps_check_pin( struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) { char pin[9]; size_t len; char *pos; int ret; wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN", (u8 *) cmd, os_strlen(cmd)); for (pos = cmd, len = 0; *pos != '\0'; pos++) { if (*pos < '0' || *pos > '9') continue; pin[len++] = *pos; if (len == 9) { wpa_printf(MSG_DEBUG, "WPS: Too long PIN"); return -1; } } if (len != 4 && len != 8) { wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len); return -1; } pin[len] = '\0'; if (len == 8) { unsigned int pin_val; pin_val = atoi(pin); if (!wps_pin_valid(pin_val)) { wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit"); ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n"); if (os_snprintf_error(buflen, ret)) return -1; return ret; } } ret = os_snprintf(buf, buflen, "%s", pin); if (os_snprintf_error(buflen, ret)) return -1; return ret; } #ifdef CONFIG_WPS_NFC static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd, char *pos) { size_t len; struct wpabuf *buf; int ret; len = os_strlen(pos); if (len & 0x01) return -1; len /= 2; buf = wpabuf_alloc(len); if (buf == NULL) return -1; if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) { wpabuf_free(buf); return -1; } ret = hostapd_wps_nfc_tag_read(hapd, buf); wpabuf_free(buf); return ret; } static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd, char *cmd, char *reply, size_t max_len) { int ndef; struct wpabuf *buf; int res; if (os_strcmp(cmd, "WPS") == 0) ndef = 0; else if (os_strcmp(cmd, "NDEF") == 0) ndef = 1; else return -1; buf = hostapd_wps_nfc_config_token(hapd, ndef); if (buf == NULL) return -1; res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), wpabuf_len(buf)); reply[res++] = '\n'; reply[res] = '\0'; wpabuf_free(buf); return res; } static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd, char *reply, size_t max_len, int ndef) { struct wpabuf *buf; int res; buf = hostapd_wps_nfc_token_gen(hapd, ndef); if (buf == NULL) return -1; res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), wpabuf_len(buf)); reply[res++] = '\n'; reply[res] = '\0'; wpabuf_free(buf); return res; } static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd, char *cmd, char *reply, size_t max_len) { if (os_strcmp(cmd, "WPS") == 0) return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, max_len, 0); if (os_strcmp(cmd, "NDEF") == 0) return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, max_len, 1); if (os_strcmp(cmd, "enable") == 0) return hostapd_wps_nfc_token_enable(hapd); if (os_strcmp(cmd, "disable") == 0) { hostapd_wps_nfc_token_disable(hapd); return 0; } return -1; } static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd, char *cmd, char *reply, size_t max_len) { struct wpabuf *buf; int res; char *pos; int ndef; pos = os_strchr(cmd, ' '); if (pos == NULL) return -1; *pos++ = '\0'; if (os_strcmp(cmd, "WPS") == 0) ndef = 0; else if (os_strcmp(cmd, "NDEF") == 0) ndef = 1; else return -1; if (os_strcmp(pos, "WPS-CR") == 0) buf = hostapd_wps_nfc_hs_cr(hapd, ndef); else buf = NULL; if (buf == NULL) return -1; res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), wpabuf_len(buf)); reply[res++] = '\n'; reply[res] = '\0'; wpabuf_free(buf); return res; } static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd, char *cmd) { size_t len; struct wpabuf *req, *sel; int ret; char *pos, *role, *type, *pos2; role = cmd; pos = os_strchr(role, ' '); if (pos == NULL) return -1; *pos++ = '\0'; type = pos; pos = os_strchr(type, ' '); if (pos == NULL) return -1; *pos++ = '\0'; pos2 = os_strchr(pos, ' '); if (pos2 == NULL) return -1; *pos2++ = '\0'; len = os_strlen(pos); if (len & 0x01) return -1; len /= 2; req = wpabuf_alloc(len); if (req == NULL) return -1; if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) { wpabuf_free(req); return -1; } len = os_strlen(pos2); if (len & 0x01) { wpabuf_free(req); return -1; } len /= 2; sel = wpabuf_alloc(len); if (sel == NULL) { wpabuf_free(req); return -1; } if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) { wpabuf_free(req); wpabuf_free(sel); return -1; } if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) { ret = hostapd_wps_nfc_report_handover(hapd, req, sel); } else { wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover " "reported: role=%s type=%s", role, type); ret = -1; } wpabuf_free(req); wpabuf_free(sel); return ret; } #endif /* CONFIG_WPS_NFC */ static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt, char *buf, size_t buflen) { int timeout = 300; char *pos; const char *pin_txt; pos = os_strchr(txt, ' '); if (pos) *pos++ = '\0'; if (os_strcmp(txt, "disable") == 0) { hostapd_wps_ap_pin_disable(hapd); return os_snprintf(buf, buflen, "OK\n"); } if (os_strcmp(txt, "random") == 0) { if (pos) timeout = atoi(pos); pin_txt = hostapd_wps_ap_pin_random(hapd, timeout); if (pin_txt == NULL) return -1; return os_snprintf(buf, buflen, "%s", pin_txt); } if (os_strcmp(txt, "get") == 0) { pin_txt = hostapd_wps_ap_pin_get(hapd); if (pin_txt == NULL) return -1; return os_snprintf(buf, buflen, "%s", pin_txt); } if (os_strcmp(txt, "set") == 0) { char *pin; if (pos == NULL) return -1; pin = pos; pos = os_strchr(pos, ' '); if (pos) { *pos++ = '\0'; timeout = atoi(pos); } if (os_strlen(pin) > buflen) return -1; if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0) return -1; return os_snprintf(buf, buflen, "%s", pin); } return -1; } static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt) { char *pos; char *ssid, *auth, *encr = NULL, *key = NULL; ssid = txt; pos = os_strchr(txt, ' '); if (!pos) return -1; *pos++ = '\0'; auth = pos; pos = os_strchr(pos, ' '); if (pos) { *pos++ = '\0'; encr = pos; pos = os_strchr(pos, ' '); if (pos) { *pos++ = '\0'; key = pos; } } return hostapd_wps_config_ap(hapd, ssid, auth, encr, key); } static const char * pbc_status_str(enum pbc_status status) { switch (status) { case WPS_PBC_STATUS_DISABLE: return "Disabled"; case WPS_PBC_STATUS_ACTIVE: return "Active"; case WPS_PBC_STATUS_TIMEOUT: return "Timed-out"; case WPS_PBC_STATUS_OVERLAP: return "Overlap"; default: return "Unknown"; } } static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd, char *buf, size_t buflen) { int ret; char *pos, *end; pos = buf; end = buf + buflen; ret = os_snprintf(pos, end - pos, "PBC Status: %s\n", pbc_status_str(hapd->wps_stats.pbc_status)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n", (hapd->wps_stats.status == WPS_STATUS_SUCCESS ? "Success": (hapd->wps_stats.status == WPS_STATUS_FAILURE ? "Failed" : "None"))); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; /* If status == Failure - Add possible Reasons */ if(hapd->wps_stats.status == WPS_STATUS_FAILURE && hapd->wps_stats.failure_reason > 0) { ret = os_snprintf(pos, end - pos, "Failure Reason: %s\n", wps_ei_str(hapd->wps_stats.failure_reason)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->wps_stats.status) { ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n", MAC2STR(hapd->wps_stats.peer_addr)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } return pos - buf; } #endif /* CONFIG_WPS */ #ifdef CONFIG_HS20 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; const char *url; if (hwaddr_aton(cmd, addr)) return -1; url = cmd + 17; if (*url == '\0') { url = NULL; } else { if (*url != ' ') return -1; url++; if (*url == '\0') url = NULL; } return hs20_send_wnm_notification(hapd, addr, 1, url); } static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; int code, reauth_delay, ret; const char *pos; size_t url_len; struct wpabuf *req; /* [URL] */ if (hwaddr_aton(cmd, addr)) return -1; pos = os_strchr(cmd, ' '); if (pos == NULL) return -1; pos++; code = atoi(pos); pos = os_strchr(pos, ' '); if (pos == NULL) return -1; pos++; reauth_delay = atoi(pos); url_len = 0; pos = os_strchr(pos, ' '); if (pos) { pos++; url_len = os_strlen(pos); } req = wpabuf_alloc(4 + url_len); if (req == NULL) return -1; wpabuf_put_u8(req, code); wpabuf_put_le16(req, reauth_delay); wpabuf_put_u8(req, url_len); if (pos) wpabuf_put_data(req, pos, url_len); wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR " to indicate imminent deauthentication (code=%d " "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay); ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req); wpabuf_free(req); return ret; } #endif /* CONFIG_HS20 */ #ifdef CONFIG_INTERWORKING static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd, const char *cmd) { u8 qos_map_set[16 + 2 * 21], count = 0; const char *pos = cmd; int val, ret; for (;;) { if (count == sizeof(qos_map_set)) { wpa_printf(MSG_ERROR, "Too many qos_map_set parameters"); return -1; } val = atoi(pos); if (val < 0 || val > 255) { wpa_printf(MSG_INFO, "Invalid QoS Map Set"); return -1; } qos_map_set[count++] = val; pos = os_strchr(pos, ','); if (!pos) break; pos++; } if (count < 16 || count & 1) { wpa_printf(MSG_INFO, "Invalid QoS Map Set"); return -1; } ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count); if (ret) { wpa_printf(MSG_INFO, "Failed to set QoS Map Set"); return -1; } os_memcpy(hapd->conf->qos_map_set, qos_map_set, count); hapd->conf->qos_map_set_len = count; return 0; } static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; struct sta_info *sta; struct wpabuf *buf; u8 *qos_map_set = hapd->conf->qos_map_set; u8 qos_map_set_len = hapd->conf->qos_map_set_len; int ret; if (!qos_map_set_len) { wpa_printf(MSG_INFO, "QoS Map Set is not set"); return -1; } if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (sta == NULL) { wpa_printf(MSG_DEBUG, "Station " MACSTR " not found " "for QoS Map Configuration message", MAC2STR(addr)); return -1; } if (!sta->qos_map_enabled) { wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate " "support for QoS Map", MAC2STR(addr)); return -1; } buf = wpabuf_alloc(2 + 2 + qos_map_set_len); if (buf == NULL) return -1; wpabuf_put_u8(buf, WLAN_ACTION_QOS); wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG); /* QoS Map Set Element */ wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET); wpabuf_put_u8(buf, qos_map_set_len); wpabuf_put_data(buf, qos_map_set, qos_map_set_len); ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, wpabuf_head(buf), wpabuf_len(buf)); wpabuf_free(buf); return ret; } #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_WNM_AP static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; int disassoc_timer; struct sta_info *sta; if (hwaddr_aton(cmd, addr)) return -1; if (cmd[17] != ' ') return -1; disassoc_timer = atoi(cmd + 17); sta = ap_get_sta(hapd, addr); if (sta == NULL) { wpa_printf(MSG_DEBUG, "Station " MACSTR " not found for disassociation imminent message", MAC2STR(addr)); return -1; } return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer); } static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; const char *url, *timerstr; int disassoc_timer; struct sta_info *sta; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (sta == NULL) { wpa_printf(MSG_DEBUG, "Station " MACSTR " not found for ESS disassociation imminent message", MAC2STR(addr)); return -1; } timerstr = cmd + 17; if (*timerstr != ' ') return -1; timerstr++; disassoc_timer = atoi(timerstr); if (disassoc_timer < 0 || disassoc_timer > 65535) return -1; url = os_strchr(timerstr, ' '); if (url == NULL) return -1; url++; return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer); } static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; const char *pos, *end; int disassoc_timer = 0; struct sta_info *sta; u8 req_mode = 0, valid_int = 0x01; u8 bss_term_dur[12]; char *url = NULL; int ret; u8 nei_rep[1000]; int nei_len; u8 mbo[10]; size_t mbo_len = 0; if (hwaddr_aton(cmd, addr)) { wpa_printf(MSG_DEBUG, "Invalid STA MAC address"); return -1; } sta = ap_get_sta(hapd, addr); if (sta == NULL) { wpa_printf(MSG_DEBUG, "Station " MACSTR " not found for BSS TM Request message", MAC2STR(addr)); return -1; } pos = os_strstr(cmd, " disassoc_timer="); if (pos) { pos += 16; disassoc_timer = atoi(pos); if (disassoc_timer < 0 || disassoc_timer > 65535) { wpa_printf(MSG_DEBUG, "Invalid disassoc_timer"); return -1; } } pos = os_strstr(cmd, " valid_int="); if (pos) { pos += 11; valid_int = atoi(pos); } pos = os_strstr(cmd, " bss_term="); if (pos) { pos += 10; req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED; /* TODO: TSF configurable/learnable */ bss_term_dur[0] = 4; /* Subelement ID */ bss_term_dur[1] = 10; /* Length */ os_memset(&bss_term_dur[2], 0, 8); end = os_strchr(pos, ','); if (end == NULL) { wpa_printf(MSG_DEBUG, "Invalid bss_term data"); return -1; } end++; WPA_PUT_LE16(&bss_term_dur[10], atoi(end)); } nei_len = ieee802_11_parse_candidate_list(cmd, nei_rep, sizeof(nei_rep)); if (nei_len < 0) return -1; pos = os_strstr(cmd, " url="); if (pos) { size_t len; pos += 5; end = os_strchr(pos, ' '); if (end) len = end - pos; else len = os_strlen(pos); url = os_malloc(len + 1); if (url == NULL) return -1; os_memcpy(url, pos, len); url[len] = '\0'; req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT; } if (os_strstr(cmd, " pref=1")) req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED; if (os_strstr(cmd, " abridged=1")) req_mode |= WNM_BSS_TM_REQ_ABRIDGED; if (os_strstr(cmd, " disassoc_imminent=1")) req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT; #ifdef CONFIG_MBO pos = os_strstr(cmd, "mbo="); if (pos) { unsigned int mbo_reason, cell_pref, reassoc_delay; u8 *mbo_pos = mbo; ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason, &reassoc_delay, &cell_pref); if (ret != 3) { wpa_printf(MSG_DEBUG, "MBO requires three arguments: mbo=::"); ret = -1; goto fail; } if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) { wpa_printf(MSG_DEBUG, "Invalid MBO transition reason code %u", mbo_reason); ret = -1; goto fail; } /* Valid values for Cellular preference are: 0, 1, 255 */ if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) { wpa_printf(MSG_DEBUG, "Invalid MBO cellular capability %u", cell_pref); ret = -1; goto fail; } if (reassoc_delay > 65535 || (reassoc_delay && !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) { wpa_printf(MSG_DEBUG, "MBO: Assoc retry delay is only valid in disassoc imminent mode"); ret = -1; goto fail; } *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON; *mbo_pos++ = 1; *mbo_pos++ = mbo_reason; *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF; *mbo_pos++ = 1; *mbo_pos++ = cell_pref; if (reassoc_delay) { *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY; *mbo_pos++ = 2; WPA_PUT_LE16(mbo_pos, reassoc_delay); mbo_pos += 2; } mbo_len = mbo_pos - mbo; } #endif /* CONFIG_MBO */ ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer, valid_int, bss_term_dur, url, nei_len ? nei_rep : NULL, nei_len, mbo_len ? mbo : NULL, mbo_len); #ifdef CONFIG_MBO fail: #endif /* CONFIG_MBO */ os_free(url); return ret; } static int hostapd_ctrl_iface_coloc_intf_req(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; struct sta_info *sta; const char *pos; unsigned int auto_report, timeout; if (hwaddr_aton(cmd, addr)) { wpa_printf(MSG_DEBUG, "Invalid STA MAC address"); return -1; } sta = ap_get_sta(hapd, addr); if (!sta) { wpa_printf(MSG_DEBUG, "Station " MACSTR " not found for Collocated Interference Request", MAC2STR(addr)); return -1; } pos = cmd + 17; if (*pos != ' ') return -1; pos++; auto_report = atoi(pos); pos = os_strchr(pos, ' '); if (!pos) return -1; pos++; timeout = atoi(pos); return wnm_send_coloc_intf_req(hapd, sta, auto_report, timeout); } #endif /* CONFIG_WNM_AP */ static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd, char *buf, size_t buflen) { int ret = 0; char *pos, *end; pos = buf; end = buf + buflen; WPA_ASSERT(hapd->conf->wpa_key_mgmt); if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) { ret = os_snprintf(pos, end - pos, "WPA-PSK "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) { ret = os_snprintf(pos, end - pos, "WPA-EAP "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #ifdef CONFIG_IEEE80211R_AP if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) { ret = os_snprintf(pos, end - pos, "FT-PSK "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) { ret = os_snprintf(pos, end - pos, "FT-EAP "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #ifdef CONFIG_SHA384 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) { ret = os_snprintf(pos, end - pos, "FT-EAP-SHA384 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_SHA384 */ #ifdef CONFIG_SAE if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) { ret = os_snprintf(pos, end - pos, "FT-SAE "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_SAE */ #ifdef CONFIG_FILS if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) { ret = os_snprintf(pos, end - pos, "FT-FILS-SHA256 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) { ret = os_snprintf(pos, end - pos, "FT-FILS-SHA384 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_FILS */ #endif /* CONFIG_IEEE80211R_AP */ if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) { ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) { ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #ifdef CONFIG_SAE if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) { ret = os_snprintf(pos, end - pos, "SAE "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_SAE */ if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) { ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B-192 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #ifdef CONFIG_FILS if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA256) { ret = os_snprintf(pos, end - pos, "FILS-SHA256 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA384) { ret = os_snprintf(pos, end - pos, "FILS-SHA384 "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_FILS */ #ifdef CONFIG_OWE if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) { ret = os_snprintf(pos, end - pos, "OWE "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_OWE */ #ifdef CONFIG_DPP if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) { ret = os_snprintf(pos, end - pos, "DPP "); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } #endif /* CONFIG_DPP */ if (pos > buf && *(pos - 1) == ' ') { *(pos - 1) = '\0'; pos--; } return pos - buf; } static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd, char *buf, size_t buflen) { int ret; char *pos, *end; pos = buf; end = buf + buflen; ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n" "ssid=%s\n", MAC2STR(hapd->own_addr), wpa_ssid_txt(hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; #ifdef CONFIG_WPS ret = os_snprintf(pos, end - pos, "wps_state=%s\n", hapd->conf->wps_state == 0 ? "disabled" : (hapd->conf->wps_state == 1 ? "not configured" : "configured")); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; if (hapd->conf->wps_state && hapd->conf->wpa && hapd->conf->ssid.wpa_passphrase) { ret = os_snprintf(pos, end - pos, "passphrase=%s\n", hapd->conf->ssid.wpa_passphrase); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wps_state && hapd->conf->wpa && hapd->conf->ssid.wpa_psk && hapd->conf->ssid.wpa_psk->group) { char hex[PMK_LEN * 2 + 1]; wpa_snprintf_hex(hex, sizeof(hex), hapd->conf->ssid.wpa_psk->psk, PMK_LEN); ret = os_snprintf(pos, end - pos, "psk=%s\n", hex); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->multi_ap) { struct hostapd_ssid *ssid = &hapd->conf->multi_ap_backhaul_ssid; ret = os_snprintf(pos, end - pos, "multi_ap=%d\n", hapd->conf->multi_ap); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; if (ssid->ssid_len) { ret = os_snprintf(pos, end - pos, "multi_ap_backhaul_ssid=%s\n", wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wps_state && hapd->conf->wpa && ssid->wpa_passphrase) { ret = os_snprintf(pos, end - pos, "multi_ap_backhaul_wpa_passphrase=%s\n", ssid->wpa_passphrase); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wps_state && hapd->conf->wpa && ssid->wpa_psk && ssid->wpa_psk->group) { char hex[PMK_LEN * 2 + 1]; wpa_snprintf_hex(hex, sizeof(hex), ssid->wpa_psk->psk, PMK_LEN); ret = os_snprintf(pos, end - pos, "multi_ap_backhaul_wpa_psk=%s\n", hex); forced_memzero(hex, sizeof(hex)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } } #endif /* CONFIG_WPS */ if (hapd->conf->wpa) { ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) { ret = os_snprintf(pos, end - pos, "key_mgmt="); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos); ret = os_snprintf(pos, end - pos, "\n"); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa) { ret = os_snprintf(pos, end - pos, "group_cipher=%s\n", wpa_cipher_txt(hapd->conf->wpa_group)); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) { ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher="); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise, " "); if (ret < 0) return pos - buf; pos += ret; ret = os_snprintf(pos, end - pos, "\n"); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) { ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher="); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise, " "); if (ret < 0) return pos - buf; pos += ret; ret = os_snprintf(pos, end - pos, "\n"); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if (hapd->conf->wpa && hapd->conf->wpa_deny_ptk0_rekey) { ret = os_snprintf(pos, end - pos, "wpa_deny_ptk0_rekey=%d\n", hapd->conf->wpa_deny_ptk0_rekey); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->extended_key_id) { ret = os_snprintf(pos, end - pos, "extended_key_id=%d\n", hapd->conf->extended_key_id); if (os_snprintf_error(end - pos, ret)) return pos - buf; pos += ret; } return pos - buf; } static void hostapd_disassoc_accept_mac(struct hostapd_data *hapd) { struct sta_info *sta; struct vlan_description vlan_id; if (hapd->conf->macaddr_acl != DENY_UNLESS_ACCEPTED) return; for (sta = hapd->sta_list; sta; sta = sta->next) { if (!hostapd_maclist_found(hapd->conf->accept_mac, hapd->conf->num_accept_mac, sta->addr, &vlan_id) || (vlan_id.notempty && vlan_compare(&vlan_id, sta->vlan_desc))) ap_sta_disconnect(hapd, sta, sta->addr, WLAN_REASON_UNSPECIFIED); } } static void hostapd_disassoc_deny_mac(struct hostapd_data *hapd) { struct sta_info *sta; struct vlan_description vlan_id; for (sta = hapd->sta_list; sta; sta = sta->next) { if (hostapd_maclist_found(hapd->conf->deny_mac, hapd->conf->num_deny_mac, sta->addr, &vlan_id) && (!vlan_id.notempty || !vlan_compare(&vlan_id, sta->vlan_desc))) ap_sta_disconnect(hapd, sta, sta->addr, WLAN_REASON_UNSPECIFIED); } } static int hostapd_ctrl_iface_set_band(struct hostapd_data *hapd, const char *bands) { union wpa_event_data event; u32 setband_mask = WPA_SETBAND_AUTO; /* * For example: * SET setband 2G,6G * SET setband 5G * SET setband AUTO */ if (!os_strstr(bands, "AUTO")) { if (os_strstr(bands, "5G")) setband_mask |= WPA_SETBAND_5G; if (os_strstr(bands, "6G")) setband_mask |= WPA_SETBAND_6G; if (os_strstr(bands, "2G")) setband_mask |= WPA_SETBAND_2G; if (setband_mask == WPA_SETBAND_AUTO) return -1; } if (hostapd_drv_set_band(hapd, setband_mask) == 0) { os_memset(&event, 0, sizeof(event)); event.channel_list_changed.initiator = REGDOM_SET_BY_USER; event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN; wpa_supplicant_event(hapd, EVENT_CHANNEL_LIST_CHANGED, &event); } return 0; } static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd) { char *value; int ret = 0; value = os_strchr(cmd, ' '); if (value == NULL) return -1; *value++ = '\0'; wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value); if (0) { #ifdef CONFIG_WPS_TESTING } else if (os_strcasecmp(cmd, "wps_version_number") == 0) { long int val; val = strtol(value, NULL, 0); if (val < 0 || val > 0xff) { ret = -1; wpa_printf(MSG_DEBUG, "WPS: Invalid " "wps_version_number %ld", val); } else { wps_version_number = val; wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS " "version %u.%u", (wps_version_number & 0xf0) >> 4, wps_version_number & 0x0f); hostapd_wps_update_ie(hapd); } } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) { wps_testing_dummy_cred = atoi(value); wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d", wps_testing_dummy_cred); } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) { wps_corrupt_pkhash = atoi(value); wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d", wps_corrupt_pkhash); #endif /* CONFIG_WPS_TESTING */ #ifdef CONFIG_TESTING_OPTIONS } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) { hapd->ext_mgmt_frame_handling = atoi(value); } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) { hapd->ext_eapol_frame_io = atoi(value); #ifdef CONFIG_DPP } else if (os_strcasecmp(cmd, "dpp_config_obj_override") == 0) { os_free(hapd->dpp_config_obj_override); hapd->dpp_config_obj_override = os_strdup(value); } else if (os_strcasecmp(cmd, "dpp_discovery_override") == 0) { os_free(hapd->dpp_discovery_override); hapd->dpp_discovery_override = os_strdup(value); } else if (os_strcasecmp(cmd, "dpp_groups_override") == 0) { os_free(hapd->dpp_groups_override); hapd->dpp_groups_override = os_strdup(value); } else if (os_strcasecmp(cmd, "dpp_ignore_netaccesskey_mismatch") == 0) { hapd->dpp_ignore_netaccesskey_mismatch = atoi(value); } else if (os_strcasecmp(cmd, "dpp_test") == 0) { dpp_test = atoi(value); } else if (os_strcasecmp(cmd, "dpp_version_override") == 0) { dpp_version_override = atoi(value); #endif /* CONFIG_DPP */ #endif /* CONFIG_TESTING_OPTIONS */ #ifdef CONFIG_MBO } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) { int val; if (!hapd->conf->mbo_enabled) return -1; val = atoi(value); if (val < 0 || val > 1) return -1; hapd->mbo_assoc_disallow = val; ieee802_11_update_beacons(hapd->iface); /* * TODO: Need to configure drivers that do AP MLME offload with * disallowing station logic. */ #endif /* CONFIG_MBO */ #ifdef CONFIG_DPP } else if (os_strcasecmp(cmd, "dpp_configurator_params") == 0) { os_free(hapd->dpp_configurator_params); hapd->dpp_configurator_params = os_strdup(value); #endif /* CONFIG_DPP */ } else if (os_strcasecmp(cmd, "setband") == 0) { ret = hostapd_ctrl_iface_set_band(hapd, value); } else { ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value); if (ret) return ret; if (os_strcasecmp(cmd, "deny_mac_file") == 0) { hostapd_disassoc_deny_mac(hapd); } else if (os_strcasecmp(cmd, "accept_mac_file") == 0) { hostapd_disassoc_accept_mac(hapd); } else if (os_strncmp(cmd, "wme_ac_", 7) == 0 || os_strncmp(cmd, "wmm_ac_", 7) == 0) { hapd->parameter_set_count++; if (ieee802_11_update_beacons(hapd->iface)) wpa_printf(MSG_DEBUG, "Failed to update beacons with WMM parameters"); } else if (os_strcmp(cmd, "wpa_passphrase") == 0 || os_strcmp(cmd, "sae_password") == 0 || os_strcmp(cmd, "sae_pwe") == 0) { if (hapd->started) hostapd_setup_sae_pt(hapd->conf); } else if (os_strcasecmp(cmd, "transition_disable") == 0) { wpa_auth_set_transition_disable(hapd->wpa_auth, hapd->conf->transition_disable); } #ifdef CONFIG_TESTING_OPTIONS if (os_strcmp(cmd, "ft_rsnxe_used") == 0) wpa_auth_set_ft_rsnxe_used(hapd->wpa_auth, hapd->conf->ft_rsnxe_used); else if (os_strcmp(cmd, "oci_freq_override_eapol_m3") == 0) wpa_auth_set_ocv_override_freq( hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_M3, atoi(value)); else if (os_strcmp(cmd, "oci_freq_override_eapol_g1") == 0) wpa_auth_set_ocv_override_freq( hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_G1, atoi(value)); else if (os_strcmp(cmd, "oci_freq_override_ft_assoc") == 0) wpa_auth_set_ocv_override_freq( hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_FT_ASSOC, atoi(value)); else if (os_strcmp(cmd, "oci_freq_override_fils_assoc") == 0) wpa_auth_set_ocv_override_freq( hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_FILS_ASSOC, atoi(value)); else if (os_strcasecmp(cmd, "skip_send_eapol") == 0) wpa_auth_set_skip_send_eapol(hapd->wpa_auth, atoi(value)); else if (os_strcasecmp(cmd, "enable_eapol_large_timeout") == 0) wpa_auth_set_enable_eapol_large_timeout(hapd->wpa_auth, atoi(value)); #endif /* CONFIG_TESTING_OPTIONS */ } return ret; } static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) { int res; wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd); if (os_strcmp(cmd, "version") == 0) { res = os_snprintf(buf, buflen, "%s", VERSION_STR); if (os_snprintf_error(buflen, res)) return -1; return res; } else if (os_strcmp(cmd, "tls_library") == 0) { res = tls_get_library_version(buf, buflen); if (os_snprintf_error(buflen, res)) return -1; return res; } return -1; } static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface) { if (hostapd_enable_iface(iface) < 0) { wpa_printf(MSG_ERROR, "Enabling of interface failed"); return -1; } return 0; } static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface) { if (hostapd_reload_iface(iface) < 0) { wpa_printf(MSG_ERROR, "Reloading of interface failed"); return -1; } return 0; } static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface) { if (hostapd_disable_iface(iface) < 0) { wpa_printf(MSG_ERROR, "Disabling of interface failed"); return -1; } return 0; } static int hostapd_ctrl_iface_kick_mismatch_psk_sta_iter(struct hostapd_data *hapd, struct sta_info *sta, void *ctx) { struct hostapd_wpa_psk *psk; const u8 *pmk; int pmk_len; int pmk_match; int sta_match; int bss_match; int reason; pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len); for (psk = hapd->conf->ssid.wpa_psk; pmk && psk; psk = psk->next) { pmk_match = PMK_LEN == pmk_len && os_memcmp(psk->psk, pmk, pmk_len) == 0; sta_match = psk->group == 0 && os_memcmp(sta->addr, psk->addr, ETH_ALEN) == 0; bss_match = psk->group == 1; if (pmk_match && (sta_match || bss_match)) return 0; } wpa_printf(MSG_INFO, "STA " MACSTR " PSK/passphrase no longer valid - disconnect", MAC2STR(sta->addr)); reason = WLAN_REASON_PREV_AUTH_NOT_VALID; hostapd_drv_sta_deauth(hapd, sta->addr, reason); ap_sta_deauthenticate(hapd, sta, reason); return 0; } static int hostapd_ctrl_iface_reload_wpa_psk(struct hostapd_data *hapd) { struct hostapd_bss_config *conf = hapd->conf; int err; hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk); err = hostapd_setup_wpa_psk(conf); if (err < 0) { wpa_printf(MSG_ERROR, "Reloading WPA-PSK passwords failed: %d", err); return -1; } ap_for_each_sta(hapd, hostapd_ctrl_iface_kick_mismatch_psk_sta_iter, NULL); return 0; } #ifdef CONFIG_TESTING_OPTIONS static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd) { union wpa_event_data data; char *pos, *param; enum wpa_event_type event; wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd); os_memset(&data, 0, sizeof(data)); param = os_strchr(cmd, ' '); if (param == NULL) return -1; *param++ = '\0'; if (os_strcmp(cmd, "DETECTED") == 0) event = EVENT_DFS_RADAR_DETECTED; else if (os_strcmp(cmd, "CAC-FINISHED") == 0) event = EVENT_DFS_CAC_FINISHED; else if (os_strcmp(cmd, "CAC-ABORTED") == 0) event = EVENT_DFS_CAC_ABORTED; else if (os_strcmp(cmd, "NOP-FINISHED") == 0) event = EVENT_DFS_NOP_FINISHED; else { wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s", cmd); return -1; } pos = os_strstr(param, "freq="); if (pos) data.dfs_event.freq = atoi(pos + 5); pos = os_strstr(param, "ht_enabled=1"); if (pos) data.dfs_event.ht_enabled = 1; pos = os_strstr(param, "chan_offset="); if (pos) data.dfs_event.chan_offset = atoi(pos + 12); pos = os_strstr(param, "chan_width="); if (pos) data.dfs_event.chan_width = atoi(pos + 11); pos = os_strstr(param, "cf1="); if (pos) data.dfs_event.cf1 = atoi(pos + 4); pos = os_strstr(param, "cf2="); if (pos) data.dfs_event.cf2 = atoi(pos + 4); wpa_supplicant_event(hapd, event, &data); return 0; } static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd) { size_t len; u8 *buf; int res; wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd); len = os_strlen(cmd); if (len & 1) return -1; len /= 2; buf = os_malloc(len); if (buf == NULL) return -1; if (hexstr2bin(cmd, buf, len) < 0) { os_free(buf); return -1; } res = hostapd_drv_send_mlme(hapd, buf, len, 0, NULL, 0, 0); os_free(buf); return res; } static int hostapd_ctrl_iface_mgmt_tx_status_process(struct hostapd_data *hapd, char *cmd) { char *pos, *param; size_t len; u8 *buf; int stype = 0, ok = 0; union wpa_event_data event; if (!hapd->ext_mgmt_frame_handling) return -1; /* stype= ok=<0/1> buf= */ wpa_printf(MSG_DEBUG, "External MGMT TX status process: %s", cmd); pos = cmd; param = os_strstr(pos, "stype="); if (param) { param += 6; stype = atoi(param); } param = os_strstr(pos, " ok="); if (param) { param += 4; ok = atoi(param); } param = os_strstr(pos, " buf="); if (!param) return -1; param += 5; len = os_strlen(param); if (len & 1) return -1; len /= 2; buf = os_malloc(len); if (!buf || hexstr2bin(param, buf, len) < 0) { os_free(buf); return -1; } os_memset(&event, 0, sizeof(event)); event.tx_status.type = WLAN_FC_TYPE_MGMT; event.tx_status.data = buf; event.tx_status.data_len = len; event.tx_status.stype = stype; event.tx_status.ack = ok; hapd->ext_mgmt_frame_handling = 0; wpa_supplicant_event(hapd, EVENT_TX_STATUS, &event); hapd->ext_mgmt_frame_handling = 1; os_free(buf); return 0; } static int hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data *hapd, char *cmd) { char *pos, *param; size_t len; u8 *buf; int freq = 0, datarate = 0, ssi_signal = 0; union wpa_event_data event; if (!hapd->ext_mgmt_frame_handling) return -1; /* freq= datarate= ssi_signal= frame= */ wpa_printf(MSG_DEBUG, "External MGMT RX process: %s", cmd); pos = cmd; param = os_strstr(pos, "freq="); if (param) { param += 5; freq = atoi(param); } param = os_strstr(pos, " datarate="); if (param) { param += 10; datarate = atoi(param); } param = os_strstr(pos, " ssi_signal="); if (param) { param += 12; ssi_signal = atoi(param); } param = os_strstr(pos, " frame="); if (param == NULL) return -1; param += 7; len = os_strlen(param); if (len & 1) return -1; len /= 2; buf = os_malloc(len); if (buf == NULL) return -1; if (hexstr2bin(param, buf, len) < 0) { os_free(buf); return -1; } os_memset(&event, 0, sizeof(event)); event.rx_mgmt.freq = freq; event.rx_mgmt.frame = buf; event.rx_mgmt.frame_len = len; event.rx_mgmt.ssi_signal = ssi_signal; event.rx_mgmt.datarate = datarate; hapd->ext_mgmt_frame_handling = 0; wpa_supplicant_event(hapd, EVENT_RX_MGMT, &event); hapd->ext_mgmt_frame_handling = 1; os_free(buf); return 0; } static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd) { char *pos; u8 src[ETH_ALEN], *buf; int used; size_t len; wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd); pos = cmd; used = hwaddr_aton2(pos, src); if (used < 0) return -1; pos += used; while (*pos == ' ') pos++; len = os_strlen(pos); if (len & 1) return -1; len /= 2; buf = os_malloc(len); if (buf == NULL) return -1; if (hexstr2bin(pos, buf, len) < 0) { os_free(buf); return -1; } ieee802_1x_receive(hapd, src, buf, len); os_free(buf); return 0; } static u16 ipv4_hdr_checksum(const void *buf, size_t len) { size_t i; u32 sum = 0; const u16 *pos = buf; for (i = 0; i < len / 2; i++) sum += *pos++; while (sum >> 16) sum = (sum & 0xffff) + (sum >> 16); return sum ^ 0xffff; } #define HWSIM_PACKETLEN 1500 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header)) static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf, size_t len) { struct hostapd_data *hapd = ctx; const struct ether_header *eth; struct ip ip; const u8 *pos; unsigned int i; char extra[30]; if (len < sizeof(*eth) + sizeof(ip) || len > HWSIM_PACKETLEN) { wpa_printf(MSG_DEBUG, "test data: RX - ignore unexpected length %d", (int) len); return; } eth = (const struct ether_header *) buf; os_memcpy(&ip, eth + 1, sizeof(ip)); pos = &buf[sizeof(*eth) + sizeof(ip)]; if (ip.ip_hl != 5 || ip.ip_v != 4 || ntohs(ip.ip_len) > HWSIM_IP_LEN) { wpa_printf(MSG_DEBUG, "test data: RX - ignore unexpected IP header"); return; } for (i = 0; i < ntohs(ip.ip_len) - sizeof(ip); i++) { if (*pos != (u8) i) { wpa_printf(MSG_DEBUG, "test data: RX - ignore mismatching payload"); return; } pos++; } extra[0] = '\0'; if (ntohs(ip.ip_len) != HWSIM_IP_LEN) os_snprintf(extra, sizeof(extra), " len=%d", ntohs(ip.ip_len)); wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR "%s", MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost), extra); } static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd, char *cmd) { int enabled = atoi(cmd); char *pos; const char *ifname; if (!enabled) { if (hapd->l2_test) { l2_packet_deinit(hapd->l2_test); hapd->l2_test = NULL; wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Disabled"); } return 0; } if (hapd->l2_test) return 0; pos = os_strstr(cmd, " ifname="); if (pos) ifname = pos + 8; else ifname = hapd->conf->iface; hapd->l2_test = l2_packet_init(ifname, hapd->own_addr, ETHERTYPE_IP, hostapd_data_test_rx, hapd, 1); if (hapd->l2_test == NULL) return -1; wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled"); return 0; } static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd) { u8 dst[ETH_ALEN], src[ETH_ALEN]; char *pos, *pos2; int used; long int val; u8 tos; u8 buf[2 + HWSIM_PACKETLEN]; struct ether_header *eth; struct ip *ip; u8 *dpos; unsigned int i; size_t send_len = HWSIM_IP_LEN; if (hapd->l2_test == NULL) return -1; /* format: [len=] */ pos = cmd; used = hwaddr_aton2(pos, dst); if (used < 0) return -1; pos += used; while (*pos == ' ') pos++; used = hwaddr_aton2(pos, src); if (used < 0) return -1; pos += used; val = strtol(pos, &pos2, 0); if (val < 0 || val > 0xff) return -1; tos = val; pos = os_strstr(pos2, " len="); if (pos) { i = atoi(pos + 5); if (i < sizeof(*ip) || i > HWSIM_IP_LEN) return -1; send_len = i; } eth = (struct ether_header *) &buf[2]; os_memcpy(eth->ether_dhost, dst, ETH_ALEN); os_memcpy(eth->ether_shost, src, ETH_ALEN); eth->ether_type = htons(ETHERTYPE_IP); ip = (struct ip *) (eth + 1); os_memset(ip, 0, sizeof(*ip)); ip->ip_hl = 5; ip->ip_v = 4; ip->ip_ttl = 64; ip->ip_tos = tos; ip->ip_len = htons(send_len); ip->ip_p = 1; ip->ip_src.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1); ip->ip_dst.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2); ip->ip_sum = ipv4_hdr_checksum(ip, sizeof(*ip)); dpos = (u8 *) (ip + 1); for (i = 0; i < send_len - sizeof(*ip); i++) *dpos++ = i; if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2], sizeof(struct ether_header) + send_len) < 0) return -1; wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos); return 0; } static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd, char *cmd) { u8 *buf; struct ether_header *eth; struct l2_packet_data *l2 = NULL; size_t len; u16 ethertype; int res = -1; const char *ifname = hapd->conf->iface; if (os_strncmp(cmd, "ifname=", 7) == 0) { cmd += 7; ifname = cmd; cmd = os_strchr(cmd, ' '); if (cmd == NULL) return -1; *cmd++ = '\0'; } len = os_strlen(cmd); if (len & 1 || len < ETH_HLEN * 2) return -1; len /= 2; buf = os_malloc(len); if (buf == NULL) return -1; if (hexstr2bin(cmd, buf, len) < 0) goto done; eth = (struct ether_header *) buf; ethertype = ntohs(eth->ether_type); l2 = l2_packet_init(ifname, hapd->own_addr, ethertype, hostapd_data_test_rx, hapd, 1); if (l2 == NULL) goto done; res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len); wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res); done: if (l2) l2_packet_deinit(l2); os_free(buf); return res < 0 ? -1 : 0; } static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd) { #ifdef WPA_TRACE_BFD char *pos; wpa_trace_fail_after = atoi(cmd); pos = os_strchr(cmd, ':'); if (pos) { pos++; os_strlcpy(wpa_trace_fail_func, pos, sizeof(wpa_trace_fail_func)); } else { wpa_trace_fail_after = 0; } return 0; #else /* WPA_TRACE_BFD */ return -1; #endif /* WPA_TRACE_BFD */ } static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd, char *buf, size_t buflen) { #ifdef WPA_TRACE_BFD return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after, wpa_trace_fail_func); #else /* WPA_TRACE_BFD */ return -1; #endif /* WPA_TRACE_BFD */ } static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd) { #ifdef WPA_TRACE_BFD char *pos; wpa_trace_test_fail_after = atoi(cmd); pos = os_strchr(cmd, ':'); if (pos) { pos++; os_strlcpy(wpa_trace_test_fail_func, pos, sizeof(wpa_trace_test_fail_func)); } else { wpa_trace_test_fail_after = 0; } return 0; #else /* WPA_TRACE_BFD */ return -1; #endif /* WPA_TRACE_BFD */ } static int hostapd_ctrl_get_fail(struct hostapd_data *hapd, char *buf, size_t buflen) { #ifdef WPA_TRACE_BFD return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after, wpa_trace_test_fail_func); #else /* WPA_TRACE_BFD */ return -1; #endif /* WPA_TRACE_BFD */ } static int hostapd_ctrl_reset_pn(struct hostapd_data *hapd, const char *cmd) { struct sta_info *sta; u8 addr[ETH_ALEN]; u8 zero[WPA_TK_MAX_LEN]; os_memset(zero, 0, sizeof(zero)); if (hwaddr_aton(cmd, addr)) return -1; if (is_broadcast_ether_addr(addr) && os_strstr(cmd, " BIGTK")) { if (hapd->last_bigtk_alg == WPA_ALG_NONE) return -1; wpa_printf(MSG_INFO, "TESTING: Reset BIPN for BIGTK"); /* First, use a zero key to avoid any possible duplicate key * avoidance in the driver. */ if (hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_bigtk_alg, broadcast_ether_addr, hapd->last_bigtk_key_idx, 0, 1, NULL, 0, zero, hapd->last_bigtk_len, KEY_FLAG_GROUP_TX_DEFAULT) < 0) return -1; /* Set the previously configured key to reset its TSC */ return hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_bigtk_alg, broadcast_ether_addr, hapd->last_bigtk_key_idx, 0, 1, NULL, 0, hapd->last_bigtk, hapd->last_bigtk_len, KEY_FLAG_GROUP_TX_DEFAULT); } if (is_broadcast_ether_addr(addr) && os_strstr(cmd, "IGTK")) { if (hapd->last_igtk_alg == WPA_ALG_NONE) return -1; wpa_printf(MSG_INFO, "TESTING: Reset IPN for IGTK"); /* First, use a zero key to avoid any possible duplicate key * avoidance in the driver. */ if (hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_igtk_alg, broadcast_ether_addr, hapd->last_igtk_key_idx, 0, 1, NULL, 0, zero, hapd->last_igtk_len, KEY_FLAG_GROUP_TX_DEFAULT) < 0) return -1; /* Set the previously configured key to reset its TSC */ return hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_igtk_alg, broadcast_ether_addr, hapd->last_igtk_key_idx, 0, 1, NULL, 0, hapd->last_igtk, hapd->last_igtk_len, KEY_FLAG_GROUP_TX_DEFAULT); } if (is_broadcast_ether_addr(addr)) { if (hapd->last_gtk_alg == WPA_ALG_NONE) return -1; wpa_printf(MSG_INFO, "TESTING: Reset PN for GTK"); /* First, use a zero key to avoid any possible duplicate key * avoidance in the driver. */ if (hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_gtk_alg, broadcast_ether_addr, hapd->last_gtk_key_idx, 0, 1, NULL, 0, zero, hapd->last_gtk_len, KEY_FLAG_GROUP_TX_DEFAULT) < 0) return -1; /* Set the previously configured key to reset its TSC */ return hostapd_drv_set_key(hapd->conf->iface, hapd, hapd->last_gtk_alg, broadcast_ether_addr, hapd->last_gtk_key_idx, 0, 1, NULL, 0, hapd->last_gtk, hapd->last_gtk_len, KEY_FLAG_GROUP_TX_DEFAULT); } sta = ap_get_sta(hapd, addr); if (!sta) return -1; if (sta->last_tk_alg == WPA_ALG_NONE) return -1; wpa_printf(MSG_INFO, "TESTING: Reset PN for " MACSTR, MAC2STR(sta->addr)); /* First, use a zero key to avoid any possible duplicate key avoidance * in the driver. */ if (hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0, zero, sta->last_tk_len, KEY_FLAG_PAIRWISE_RX_TX) < 0) return -1; /* Set the previously configured key to reset its TSC/RSC */ return hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0, sta->last_tk, sta->last_tk_len, KEY_FLAG_PAIRWISE_RX_TX); } static int hostapd_ctrl_set_key(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; const char *pos = cmd; enum wpa_alg alg; enum key_flag key_flag; int idx, set_tx; u8 seq[6], key[WPA_TK_MAX_LEN]; size_t key_len; /* parameters: alg addr idx set_tx seq key key_flag */ alg = atoi(pos); pos = os_strchr(pos, ' '); if (!pos) return -1; pos++; if (hwaddr_aton(pos, addr)) return -1; pos += 17; if (*pos != ' ') return -1; pos++; idx = atoi(pos); pos = os_strchr(pos, ' '); if (!pos) return -1; pos++; set_tx = atoi(pos); pos = os_strchr(pos, ' '); if (!pos) return -1; pos++; if (hexstr2bin(pos, seq, sizeof(seq)) < 0) return -1; pos += 2 * 6; if (*pos != ' ') return -1; pos++; if (!os_strchr(pos, ' ')) return -1; key_len = (os_strchr(pos, ' ') - pos) / 2; if (hexstr2bin(pos, key, key_len) < 0) return -1; pos += 2 * key_len; if (*pos != ' ') return -1; pos++; key_flag = atoi(pos); pos = os_strchr(pos, ' '); if (pos) return -1; wpa_printf(MSG_INFO, "TESTING: Set key"); return hostapd_drv_set_key(hapd->conf->iface, hapd, alg, addr, idx, 0, set_tx, seq, 6, key, key_len, key_flag); } static void restore_tk(void *ctx1, void *ctx2) { struct hostapd_data *hapd = ctx1; struct sta_info *sta = ctx2; wpa_printf(MSG_INFO, "TESTING: Restore TK for " MACSTR, MAC2STR(sta->addr)); /* This does not really restore the TSC properly, so this will result * in replay protection issues for now since there is no clean way of * preventing encryption of a single EAPOL frame. */ hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0, sta->last_tk, sta->last_tk_len, KEY_FLAG_PAIRWISE_RX_TX); } static int hostapd_ctrl_resend_m1(struct hostapd_data *hapd, const char *cmd) { struct sta_info *sta; u8 addr[ETH_ALEN]; int plain = os_strstr(cmd, "plaintext") != NULL; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (!sta || !sta->wpa_sm) return -1; if (plain && sta->last_tk_alg == WPA_ALG_NONE) plain = 0; /* no need for special processing */ if (plain) { wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, MAC2STR(sta->addr)); hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 0, NULL, 0, KEY_FLAG_PAIRWISE); } wpa_printf(MSG_INFO, "TESTING: Send M1 to " MACSTR, MAC2STR(sta->addr)); return wpa_auth_resend_m1(sta->wpa_sm, os_strstr(cmd, "change-anonce") != NULL, plain ? restore_tk : NULL, hapd, sta); } static int hostapd_ctrl_resend_m3(struct hostapd_data *hapd, const char *cmd) { struct sta_info *sta; u8 addr[ETH_ALEN]; int plain = os_strstr(cmd, "plaintext") != NULL; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (!sta || !sta->wpa_sm) return -1; if (plain && sta->last_tk_alg == WPA_ALG_NONE) plain = 0; /* no need for special processing */ if (plain) { wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, MAC2STR(sta->addr)); hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 0, NULL, 0, KEY_FLAG_PAIRWISE); } wpa_printf(MSG_INFO, "TESTING: Send M3 to " MACSTR, MAC2STR(sta->addr)); return wpa_auth_resend_m3(sta->wpa_sm, plain ? restore_tk : NULL, hapd, sta); } static int hostapd_ctrl_resend_group_m1(struct hostapd_data *hapd, const char *cmd) { struct sta_info *sta; u8 addr[ETH_ALEN]; int plain = os_strstr(cmd, "plaintext") != NULL; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (!sta || !sta->wpa_sm) return -1; if (plain && sta->last_tk_alg == WPA_ALG_NONE) plain = 0; /* no need for special processing */ if (plain) { wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, MAC2STR(sta->addr)); hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 0, NULL, 0, KEY_FLAG_PAIRWISE); } wpa_printf(MSG_INFO, "TESTING: Send group M1 for the same GTK and zero RSC to " MACSTR, MAC2STR(sta->addr)); return wpa_auth_resend_group_m1(sta->wpa_sm, plain ? restore_tk : NULL, hapd, sta); } static int hostapd_ctrl_get_pmksa_pmk(struct hostapd_data *hapd, const u8 *addr, char *buf, size_t buflen) { struct rsn_pmksa_cache_entry *pmksa; pmksa = wpa_auth_pmksa_get(hapd->wpa_auth, addr, NULL); if (!pmksa) return -1; return wpa_snprintf_hex(buf, buflen, pmksa->pmk, pmksa->pmk_len); } static int hostapd_ctrl_get_pmk(struct hostapd_data *hapd, const char *cmd, char *buf, size_t buflen) { struct sta_info *sta; u8 addr[ETH_ALEN]; const u8 *pmk; int pmk_len; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (!sta || !sta->wpa_sm) { wpa_printf(MSG_DEBUG, "No STA WPA state machine for " MACSTR, MAC2STR(addr)); return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen); } pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len); if (!pmk || !pmk_len) { wpa_printf(MSG_DEBUG, "No PMK stored for " MACSTR, MAC2STR(addr)); return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen); } return wpa_snprintf_hex(buf, buflen, pmk, pmk_len); } #endif /* CONFIG_TESTING_OPTIONS */ #ifdef NEED_AP_MLME static int hostapd_ctrl_check_freq_params(struct hostapd_freq_params *params) { switch (params->bandwidth) { case 0: /* bandwidth not specified: use 20 MHz by default */ /* fall-through */ case 20: if (params->center_freq1 && params->center_freq1 != params->freq) return -1; if (params->center_freq2 || params->sec_channel_offset) return -1; break; case 40: if (params->center_freq2 || !params->sec_channel_offset) return -1; if (!params->center_freq1) break; switch (params->sec_channel_offset) { case 1: if (params->freq + 10 != params->center_freq1) return -1; break; case -1: if (params->freq - 10 != params->center_freq1) return -1; break; default: return -1; } break; case 80: if (!params->center_freq1 || !params->sec_channel_offset) return 1; switch (params->sec_channel_offset) { case 1: if (params->freq - 10 != params->center_freq1 && params->freq + 30 != params->center_freq1) return 1; break; case -1: if (params->freq + 10 != params->center_freq1 && params->freq - 30 != params->center_freq1) return -1; break; default: return -1; } /* Adjacent and overlapped are not allowed for 80+80 */ if (params->center_freq2 && params->center_freq1 - params->center_freq2 <= 80 && params->center_freq2 - params->center_freq1 <= 80) return 1; break; case 160: if (!params->center_freq1 || params->center_freq2 || !params->sec_channel_offset) return -1; switch (params->sec_channel_offset) { case 1: if (params->freq + 70 != params->center_freq1 && params->freq + 30 != params->center_freq1 && params->freq - 10 != params->center_freq1 && params->freq - 50 != params->center_freq1) return -1; break; case -1: if (params->freq + 50 != params->center_freq1 && params->freq + 10 != params->center_freq1 && params->freq - 30 != params->center_freq1 && params->freq - 70 != params->center_freq1) return -1; break; default: return -1; } break; default: return -1; } return 0; } #endif /* NEED_AP_MLME */ static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface, char *pos) { #ifdef NEED_AP_MLME struct csa_settings settings; int ret; int dfs_range = 0; unsigned int i; int bandwidth; u8 chan; ret = hostapd_parse_csa_settings(pos, &settings); if (ret) return ret; ret = hostapd_ctrl_check_freq_params(&settings.freq_params); if (ret) { wpa_printf(MSG_INFO, "chanswitch: invalid frequency settings provided"); return ret; } switch (settings.freq_params.bandwidth) { case 40: bandwidth = CHAN_WIDTH_40; break; case 80: if (settings.freq_params.center_freq2) bandwidth = CHAN_WIDTH_80P80; else bandwidth = CHAN_WIDTH_80; break; case 160: bandwidth = CHAN_WIDTH_160; break; default: bandwidth = CHAN_WIDTH_20; break; } if (settings.freq_params.center_freq1) dfs_range += hostapd_is_dfs_overlap( iface, bandwidth, settings.freq_params.center_freq1); else dfs_range += hostapd_is_dfs_overlap( iface, bandwidth, settings.freq_params.freq); if (settings.freq_params.center_freq2) dfs_range += hostapd_is_dfs_overlap( iface, bandwidth, settings.freq_params.center_freq2); if (dfs_range) { ret = ieee80211_freq_to_chan(settings.freq_params.freq, &chan); if (ret == NUM_HOSTAPD_MODES) { wpa_printf(MSG_ERROR, "Failed to get channel for (freq=%d, sec_channel_offset=%d, bw=%d)", settings.freq_params.freq, settings.freq_params.sec_channel_offset, settings.freq_params.bandwidth); return -1; } settings.freq_params.channel = chan; wpa_printf(MSG_DEBUG, "DFS/CAC to (channel=%u, freq=%d, sec_channel_offset=%d, bw=%d, center_freq1=%d)", settings.freq_params.channel, settings.freq_params.freq, settings.freq_params.sec_channel_offset, settings.freq_params.bandwidth, settings.freq_params.center_freq1); /* Perform CAC and switch channel */ hostapd_switch_channel_fallback(iface, &settings.freq_params); return 0; } for (i = 0; i < iface->num_bss; i++) { /* Save CHAN_SWITCH VHT and HE config */ hostapd_chan_switch_config(iface->bss[i], &settings.freq_params); ret = hostapd_switch_channel(iface->bss[i], &settings); if (ret) { /* FIX: What do we do if CSA fails in the middle of * submitting multi-BSS CSA requests? */ return ret; } } return 0; #else /* NEED_AP_MLME */ return -1; #endif /* NEED_AP_MLME */ } static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply, int reply_size, const char *param) { #ifdef RADIUS_SERVER if (os_strcmp(param, "radius_server") == 0) { return radius_server_get_mib(hapd->radius_srv, reply, reply_size); } #endif /* RADIUS_SERVER */ return -1; } static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) { int ret; char *pos, *temp = NULL; u8 *data = NULL; unsigned int vendor_id, subcmd; enum nested_attr nested_attr_flag = NESTED_ATTR_UNSPECIFIED; struct wpabuf *reply; size_t data_len = 0; /** * cmd: [] * [nested=<0|1>] */ vendor_id = strtoul(cmd, &pos, 16); if (!isblank((unsigned char) *pos)) return -EINVAL; subcmd = strtoul(pos, &pos, 10); if (*pos != '\0') { if (!isblank((unsigned char) *pos++)) return -EINVAL; temp = os_strchr(pos, ' '); data_len = temp ? (size_t) (temp - pos) : os_strlen(pos); } if (data_len) { data_len /= 2; data = os_malloc(data_len); if (!data) return -ENOBUFS; if (hexstr2bin(pos, data, data_len)) { wpa_printf(MSG_DEBUG, "Vendor command: wrong parameter format"); os_free(data); return -EINVAL; } } pos = os_strstr(cmd, "nested="); if (pos) nested_attr_flag = atoi(pos + 7) ? NESTED_ATTR_USED : NESTED_ATTR_NOT_USED; reply = wpabuf_alloc((buflen - 1) / 2); if (!reply) { os_free(data); return -ENOBUFS; } ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len, nested_attr_flag, reply); if (ret == 0) ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply), wpabuf_len(reply)); wpabuf_free(reply); os_free(data); return ret; } static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; struct sta_info *sta; if (hwaddr_aton(cmd, addr)) return -1; sta = ap_get_sta(hapd, addr); if (!sta || !sta->eapol_sm) return -1; eapol_auth_reauthenticate(sta->eapol_sm); return 0; } static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd) { u8 addr[ETH_ALEN]; struct sta_info *sta; char *pos = cmd, *param; if (hwaddr_aton(pos, addr) || pos[17] != ' ') return -1; pos += 18; param = pos; pos = os_strchr(pos, ' '); if (!pos) return -1; *pos++ = '\0'; sta = ap_get_sta(hapd, addr); if (!sta || !sta->eapol_sm) return -1; return eapol_auth_set_conf(sta->eapol_sm, param, pos); } static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) { char *pos, *end, *stamp; int ret; /* cmd: "LOG_LEVEL []" */ if (*cmd == '\0') { pos = buf; end = buf + buflen; ret = os_snprintf(pos, end - pos, "Current level: %s\n" "Timestamp: %d\n", debug_level_str(wpa_debug_level), wpa_debug_timestamp); if (os_snprintf_error(end - pos, ret)) ret = 0; return ret; } while (*cmd == ' ') cmd++; stamp = os_strchr(cmd, ' '); if (stamp) { *stamp++ = '\0'; while (*stamp == ' ') { stamp++; } } if (os_strlen(cmd)) { int level = str_to_debug_level(cmd); if (level < 0) return -1; wpa_debug_level = level; } if (stamp && os_strlen(stamp)) wpa_debug_timestamp = atoi(stamp); os_memcpy(buf, "OK\n", 3); return 3; } #ifdef NEED_AP_MLME static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd, char *buf, size_t buflen) { struct hostapd_iface *iface = hapd->iface; char *pos, *end; struct hostapd_sta_info *info; struct os_reltime now; if (!iface->num_sta_seen) return 0; sta_track_expire(iface, 0); pos = buf; end = buf + buflen; os_get_reltime(&now); dl_list_for_each_reverse(info, &iface->sta_seen, struct hostapd_sta_info, list) { struct os_reltime age; int ret; os_reltime_sub(&now, &info->last_seen, &age); ret = os_snprintf(pos, end - pos, MACSTR " %u %d\n", MAC2STR(info->addr), (unsigned int) age.sec, info->ssi_signal); if (os_snprintf_error(end - pos, ret)) break; pos += ret; } return pos - buf; } #endif /* NEED_AP_MLME */ static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd, const char *cmd) { u8 addr[ETH_ALEN]; if (hwaddr_aton(cmd, addr)) { wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address"); return -1; } return hostapd_send_lci_req(hapd, addr); } static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd) { u8 addr[ETH_ALEN]; char *token, *context = NULL; int random_interval, min_ap; u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS]; unsigned int n_responders; token = str_token(cmd, " ", &context); if (!token || hwaddr_aton(token, addr)) { wpa_printf(MSG_INFO, "CTRL: REQ_RANGE - Bad destination address"); return -1; } token = str_token(cmd, " ", &context); if (!token) return -1; random_interval = atoi(token); if (random_interval < 0 || random_interval > 0xffff) return -1; token = str_token(cmd, " ", &context); if (!token) return -1; min_ap = atoi(token); if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP) return -1; n_responders = 0; while ((token = str_token(cmd, " ", &context))) { if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) { wpa_printf(MSG_INFO, "CTRL: REQ_RANGE: Too many responders"); return -1; } if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) { wpa_printf(MSG_INFO, "CTRL: REQ_RANGE: Bad responder address"); return -1; } n_responders++; } if (!n_responders) { wpa_printf(MSG_INFO, "CTRL: REQ_RANGE - No FTM responder address"); return -1; } return hostapd_send_range_req(hapd, addr, random_interval, min_ap, responders, n_responders); } static int hostapd_ctrl_iface_req_beacon(struct hostapd_data *hapd, const char *cmd, char *reply, size_t reply_size) { u8 addr[ETH_ALEN]; const char *pos; struct wpabuf *req; int ret; u8 req_mode = 0; if (hwaddr_aton(cmd, addr)) return -1; pos = os_strchr(cmd, ' '); if (!pos) return -1; pos++; if (os_strncmp(pos, "req_mode=", 9) == 0) { int val = hex2byte(pos + 9); if (val < 0) return -1; req_mode = val; pos += 11; pos = os_strchr(pos, ' '); if (!pos) return -1; pos++; } req = wpabuf_parse_bin(pos); if (!req) return -1; ret = hostapd_send_beacon_req(hapd, addr, req_mode, req); wpabuf_free(req); if (ret >= 0) ret = os_snprintf(reply, reply_size, "%d", ret); return ret; } static int hostapd_ctrl_iface_show_neighbor(struct hostapd_data *hapd, char *buf, size_t buflen) { if (!(hapd->conf->radio_measurements[0] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { wpa_printf(MSG_ERROR, "CTRL: SHOW_NEIGHBOR: Neighbor report is not enabled"); return -1; } return hostapd_neighbor_show(hapd, buf, buflen); } static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf) { struct wpa_ssid_value ssid; u8 bssid[ETH_ALEN]; struct wpabuf *nr, *lci = NULL, *civic = NULL; int stationary = 0; char *tmp; int ret; if (!(hapd->conf->radio_measurements[0] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Neighbor report is not enabled"); return -1; } if (hwaddr_aton(buf, bssid)) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID"); return -1; } tmp = os_strstr(buf, "ssid="); if (!tmp || ssid_parse(tmp + 5, &ssid)) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad or missing SSID"); return -1; } buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' '); if (!buf) return -1; tmp = os_strstr(buf, "nr="); if (!tmp) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Missing Neighbor Report element"); return -1; } buf = os_strchr(tmp, ' '); if (buf) *buf++ = '\0'; nr = wpabuf_parse_bin(tmp + 3); if (!nr) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad Neighbor Report element"); return -1; } if (!buf) goto set; tmp = os_strstr(buf, "lci="); if (tmp) { buf = os_strchr(tmp, ' '); if (buf) *buf++ = '\0'; lci = wpabuf_parse_bin(tmp + 4); if (!lci) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad LCI subelement"); wpabuf_free(nr); return -1; } } if (!buf) goto set; tmp = os_strstr(buf, "civic="); if (tmp) { buf = os_strchr(tmp, ' '); if (buf) *buf++ = '\0'; civic = wpabuf_parse_bin(tmp + 6); if (!civic) { wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad civic subelement"); wpabuf_free(nr); wpabuf_free(lci); return -1; } } if (!buf) goto set; if (os_strstr(buf, "stat")) stationary = 1; set: ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic, stationary); wpabuf_free(nr); wpabuf_free(lci); wpabuf_free(civic); return ret; } static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd, char *buf) { struct wpa_ssid_value ssid; struct wpa_ssid_value *ssidp = NULL; u8 bssid[ETH_ALEN]; char *tmp; if (hwaddr_aton(buf, bssid)) { wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID"); return -1; } tmp = os_strstr(buf, "ssid="); if (tmp) { ssidp = &ssid; if (ssid_parse(tmp + 5, &ssid)) { wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad SSID"); return -1; } } return hostapd_neighbor_remove(hapd, bssid, ssidp); } static int hostapd_ctrl_driver_flags(struct hostapd_iface *iface, char *buf, size_t buflen) { int ret, i; char *pos, *end; ret = os_snprintf(buf, buflen, "%016llX:\n", (long long unsigned) iface->drv_flags); if (os_snprintf_error(buflen, ret)) return -1; pos = buf + ret; end = buf + buflen; for (i = 0; i < 64; i++) { if (iface->drv_flags & (1LLU << i)) { ret = os_snprintf(pos, end - pos, "%s\n", driver_flag_to_string(1LLU << i)); if (os_snprintf_error(end - pos, ret)) return -1; pos += ret; } } return pos - buf; } static int hostapd_ctrl_driver_flags2(struct hostapd_iface *iface, char *buf, size_t buflen) { int ret, i; char *pos, *end; ret = os_snprintf(buf, buflen, "%016llX:\n", (long long unsigned) iface->drv_flags2); if (os_snprintf_error(buflen, ret)) return -1; pos = buf + ret; end = buf + buflen; for (i = 0; i < 64; i++) { if (iface->drv_flags2 & (1LLU << i)) { ret = os_snprintf(pos, end - pos, "%s\n", driver_flag2_to_string(1LLU << i)); if (os_snprintf_error(end - pos, ret)) return -1; pos += ret; } } return pos - buf; } static int hostapd_ctrl_iface_acl_del_mac(struct mac_acl_entry **acl, int *num, const char *txtaddr) { u8 addr[ETH_ALEN]; struct vlan_description vlan_id; if (!(*num)) return 0; if (hwaddr_aton(txtaddr, addr)) return -1; if (hostapd_maclist_found(*acl, *num, addr, &vlan_id)) hostapd_remove_acl_mac(acl, num, addr); return 0; } static void hostapd_ctrl_iface_acl_clear_list(struct mac_acl_entry **acl, int *num) { while (*num) hostapd_remove_acl_mac(acl, num, (*acl)[0].addr); } static int hostapd_ctrl_iface_acl_show_mac(struct mac_acl_entry *acl, int num, char *buf, size_t buflen) { int i = 0, len = 0, ret = 0; if (!acl) return 0; while (i < num) { ret = os_snprintf(buf + len, buflen - len, MACSTR " VLAN_ID=%d\n", MAC2STR(acl[i].addr), acl[i].vlan_id.untagged); if (ret < 0 || (size_t) ret >= buflen - len) return len; i++; len += ret; } return len; } static int hostapd_ctrl_iface_acl_add_mac(struct mac_acl_entry **acl, int *num, const char *cmd) { u8 addr[ETH_ALEN]; struct vlan_description vlan_id; int ret = 0, vlanid = 0; const char *pos; if (hwaddr_aton(cmd, addr)) return -1; pos = os_strstr(cmd, "VLAN_ID="); if (pos) vlanid = atoi(pos + 8); if (!hostapd_maclist_found(*acl, *num, addr, &vlan_id)) { ret = hostapd_add_acl_maclist(acl, num, vlanid, addr); if (ret != -1 && *acl) qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp); } return ret < 0 ? -1 : 0; } static int hostapd_ctrl_iface_get_capability(struct hostapd_data *hapd, const char *field, char *buf, size_t buflen) { wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s'", field); #ifdef CONFIG_DPP if (os_strcmp(field, "dpp") == 0) { int res; #ifdef CONFIG_DPP2 res = os_snprintf(buf, buflen, "DPP=2"); #else /* CONFIG_DPP2 */ res = os_snprintf(buf, buflen, "DPP=1"); #endif /* CONFIG_DPP2 */ if (os_snprintf_error(buflen, res)) return -1; return res; } #endif /* CONFIG_DPP */ wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'", field); return -1; } static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd, char *buf, char *reply, int reply_size, struct sockaddr_storage *from, socklen_t fromlen) { int reply_len, res; os_memcpy(reply, "OK\n", 3); reply_len = 3; if (os_strcmp(buf, "PING") == 0) { os_memcpy(reply, "PONG\n", 5); reply_len = 5; } else if (os_strncmp(buf, "RELOG", 5) == 0) { if (wpa_debug_reopen_file() < 0) reply_len = -1; } else if (os_strncmp(buf, "NOTE ", 5) == 0) { wpa_printf(MSG_INFO, "NOTE: %s", buf + 5); } else if (os_strcmp(buf, "STATUS") == 0) { reply_len = hostapd_ctrl_iface_status(hapd, reply, reply_size); } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) { reply_len = hostapd_drv_status(hapd, reply, reply_size); } else if (os_strcmp(buf, "MIB") == 0) { reply_len = ieee802_11_get_mib(hapd, reply, reply_size); if (reply_len >= 0) { res = wpa_get_mib(hapd->wpa_auth, reply + reply_len, reply_size - reply_len); if (res < 0) reply_len = -1; else reply_len += res; } if (reply_len >= 0) { res = ieee802_1x_get_mib(hapd, reply + reply_len, reply_size - reply_len); if (res < 0) reply_len = -1; else reply_len += res; } #ifndef CONFIG_NO_RADIUS if (reply_len >= 0) { res = radius_client_get_mib(hapd->radius, reply + reply_len, reply_size - reply_len); if (res < 0) reply_len = -1; else reply_len += res; } #endif /* CONFIG_NO_RADIUS */ } else if (os_strncmp(buf, "MIB ", 4) == 0) { reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size, buf + 4); } else if (os_strcmp(buf, "STA-FIRST") == 0) { reply_len = hostapd_ctrl_iface_sta_first(hapd, reply, reply_size); } else if (os_strncmp(buf, "STA ", 4) == 0) { reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply, reply_size); } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) { reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply, reply_size); } else if (os_strcmp(buf, "ATTACH") == 0) { if (hostapd_ctrl_iface_attach(hapd, from, fromlen, NULL)) reply_len = -1; } else if (os_strncmp(buf, "ATTACH ", 7) == 0) { if (hostapd_ctrl_iface_attach(hapd, from, fromlen, buf + 7)) reply_len = -1; } else if (os_strcmp(buf, "DETACH") == 0) { if (hostapd_ctrl_iface_detach(hapd, from, fromlen)) reply_len = -1; } else if (os_strncmp(buf, "LEVEL ", 6) == 0) { if (hostapd_ctrl_iface_level(hapd, from, fromlen, buf + 6)) reply_len = -1; } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) { if (hostapd_ctrl_iface_new_sta(hapd, buf + 8)) reply_len = -1; } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) { if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15)) reply_len = -1; } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) { if (hostapd_ctrl_iface_disassociate(hapd, buf + 13)) reply_len = -1; #ifdef CONFIG_TAXONOMY } else if (os_strncmp(buf, "SIGNATURE ", 10) == 0) { reply_len = hostapd_ctrl_iface_signature(hapd, buf + 10, reply, reply_size); #endif /* CONFIG_TAXONOMY */ } else if (os_strncmp(buf, "POLL_STA ", 9) == 0) { if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9)) reply_len = -1; } else if (os_strcmp(buf, "STOP_AP") == 0) { if (hostapd_ctrl_iface_stop_ap(hapd)) reply_len = -1; #ifdef NEED_AP_MLME } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) { if (hostapd_ctrl_iface_sa_query(hapd, buf + 9)) reply_len = -1; #endif /* NEED_AP_MLME */ #ifdef CONFIG_WPS } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) { if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8)) reply_len = -1; } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) { reply_len = hostapd_ctrl_iface_wps_check_pin( hapd, buf + 14, reply, reply_size); } else if (os_strcmp(buf, "WPS_PBC") == 0) { if (hostapd_wps_button_pushed(hapd, NULL)) reply_len = -1; } else if (os_strcmp(buf, "WPS_CANCEL") == 0) { if (hostapd_wps_cancel(hapd)) reply_len = -1; } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) { reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11, reply, reply_size); } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) { if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0) reply_len = -1; } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) { reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply, reply_size); #ifdef CONFIG_WPS_NFC } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) { if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17)) reply_len = -1; } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) { reply_len = hostapd_ctrl_iface_wps_nfc_config_token( hapd, buf + 21, reply, reply_size); } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) { reply_len = hostapd_ctrl_iface_wps_nfc_token( hapd, buf + 14, reply, reply_size); } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) { reply_len = hostapd_ctrl_iface_nfc_get_handover_sel( hapd, buf + 21, reply, reply_size); } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) { if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20)) reply_len = -1; #endif /* CONFIG_WPS_NFC */ #endif /* CONFIG_WPS */ #ifdef CONFIG_INTERWORKING } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) { if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16)) reply_len = -1; } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) { if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18)) reply_len = -1; #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_HS20 } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) { if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15)) reply_len = -1; } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) { if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16)) reply_len = -1; #endif /* CONFIG_HS20 */ #ifdef CONFIG_WNM_AP } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) { if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18)) reply_len = -1; } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) { if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13)) reply_len = -1; } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) { if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11)) reply_len = -1; } else if (os_strncmp(buf, "COLOC_INTF_REQ ", 15) == 0) { if (hostapd_ctrl_iface_coloc_intf_req(hapd, buf + 15)) reply_len = -1; #endif /* CONFIG_WNM_AP */ } else if (os_strcmp(buf, "GET_CONFIG") == 0) { reply_len = hostapd_ctrl_iface_get_config(hapd, reply, reply_size); } else if (os_strncmp(buf, "SET ", 4) == 0) { if (hostapd_ctrl_iface_set(hapd, buf + 4)) reply_len = -1; } else if (os_strncmp(buf, "GET ", 4) == 0) { reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply, reply_size); } else if (os_strncmp(buf, "ENABLE", 6) == 0) { if (hostapd_ctrl_iface_enable(hapd->iface)) reply_len = -1; } else if (os_strcmp(buf, "RELOAD_WPA_PSK") == 0) { if (hostapd_ctrl_iface_reload_wpa_psk(hapd)) reply_len = -1; } else if (os_strncmp(buf, "RELOAD", 6) == 0) { if (hostapd_ctrl_iface_reload(hapd->iface)) reply_len = -1; } else if (os_strncmp(buf, "DISABLE", 7) == 0) { if (hostapd_ctrl_iface_disable(hapd->iface)) reply_len = -1; } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) { if (ieee802_11_set_beacon(hapd)) reply_len = -1; #ifdef CONFIG_TESTING_OPTIONS } else if (os_strncmp(buf, "RADAR ", 6) == 0) { if (hostapd_ctrl_iface_radar(hapd, buf + 6)) reply_len = -1; } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) { if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8)) reply_len = -1; } else if (os_strncmp(buf, "MGMT_TX_STATUS_PROCESS ", 23) == 0) { if (hostapd_ctrl_iface_mgmt_tx_status_process(hapd, buf + 23) < 0) reply_len = -1; } else if (os_strncmp(buf, "MGMT_RX_PROCESS ", 16) == 0) { if (hostapd_ctrl_iface_mgmt_rx_process(hapd, buf + 16) < 0) reply_len = -1; } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) { if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0) reply_len = -1; } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) { if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0) reply_len = -1; } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) { if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0) reply_len = -1; } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) { if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0) reply_len = -1; } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) { if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0) reply_len = -1; } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) { reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply, reply_size); } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) { if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0) reply_len = -1; } else if (os_strcmp(buf, "GET_FAIL") == 0) { reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size); } else if (os_strncmp(buf, "RESET_PN ", 9) == 0) { if (hostapd_ctrl_reset_pn(hapd, buf + 9) < 0) reply_len = -1; } else if (os_strncmp(buf, "SET_KEY ", 8) == 0) { if (hostapd_ctrl_set_key(hapd, buf + 8) < 0) reply_len = -1; } else if (os_strncmp(buf, "RESEND_M1 ", 10) == 0) { if (hostapd_ctrl_resend_m1(hapd, buf + 10) < 0) reply_len = -1; } else if (os_strncmp(buf, "RESEND_M3 ", 10) == 0) { if (hostapd_ctrl_resend_m3(hapd, buf + 10) < 0) reply_len = -1; } else if (os_strncmp(buf, "RESEND_GROUP_M1 ", 16) == 0) { if (hostapd_ctrl_resend_group_m1(hapd, buf + 16) < 0) reply_len = -1; } else if (os_strcmp(buf, "REKEY_GTK") == 0) { if (wpa_auth_rekey_gtk(hapd->wpa_auth) < 0) reply_len = -1; } else if (os_strncmp(buf, "GET_PMK ", 8) == 0) { reply_len = hostapd_ctrl_get_pmk(hapd, buf + 8, reply, reply_size); #endif /* CONFIG_TESTING_OPTIONS */ } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) { if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12)) reply_len = -1; } else if (os_strncmp(buf, "VENDOR ", 7) == 0) { reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply, reply_size); } else if (os_strcmp(buf, "ERP_FLUSH") == 0) { ieee802_1x_erp_flush(hapd); #ifdef RADIUS_SERVER radius_server_erp_flush(hapd->radius_srv); #endif /* RADIUS_SERVER */ } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) { if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13)) reply_len = -1; } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) { if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10)) reply_len = -1; } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) { reply_len = hostapd_ctrl_iface_log_level( hapd, buf + 9, reply, reply_size); #ifdef NEED_AP_MLME } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) { reply_len = hostapd_ctrl_iface_track_sta_list( hapd, reply, reply_size); #endif /* NEED_AP_MLME */ } else if (os_strcmp(buf, "PMKSA") == 0) { reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply, reply_size); } else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) { hostapd_ctrl_iface_pmksa_flush(hapd); } else if (os_strncmp(buf, "PMKSA_ADD ", 10) == 0) { if (hostapd_ctrl_iface_pmksa_add(hapd, buf + 10) < 0) reply_len = -1; } else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) { if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13)) reply_len = -1; } else if (os_strcmp(buf, "SHOW_NEIGHBOR") == 0) { reply_len = hostapd_ctrl_iface_show_neighbor(hapd, reply, reply_size); } else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) { if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16)) reply_len = -1; } else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) { if (hostapd_ctrl_iface_req_lci(hapd, buf + 8)) reply_len = -1; } else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) { if (hostapd_ctrl_iface_req_range(hapd, buf + 10)) reply_len = -1; } else if (os_strncmp(buf, "REQ_BEACON ", 11) == 0) { reply_len = hostapd_ctrl_iface_req_beacon(hapd, buf + 11, reply, reply_size); } else if (os_strcmp(buf, "DRIVER_FLAGS") == 0) { reply_len = hostapd_ctrl_driver_flags(hapd->iface, reply, reply_size); } else if (os_strcmp(buf, "DRIVER_FLAGS2") == 0) { reply_len = hostapd_ctrl_driver_flags2(hapd->iface, reply, reply_size); } else if (os_strcmp(buf, "TERMINATE") == 0) { eloop_terminate(); } else if (os_strncmp(buf, "ACCEPT_ACL ", 11) == 0) { if (os_strncmp(buf + 11, "ADD_MAC ", 8) == 0) { if (hostapd_ctrl_iface_acl_add_mac( &hapd->conf->accept_mac, &hapd->conf->num_accept_mac, buf + 19)) reply_len = -1; } else if (os_strncmp((buf + 11), "DEL_MAC ", 8) == 0) { if (!hostapd_ctrl_iface_acl_del_mac( &hapd->conf->accept_mac, &hapd->conf->num_accept_mac, buf + 19)) hostapd_disassoc_accept_mac(hapd); else reply_len = -1; } else if (os_strcmp(buf + 11, "SHOW") == 0) { reply_len = hostapd_ctrl_iface_acl_show_mac( hapd->conf->accept_mac, hapd->conf->num_accept_mac, reply, reply_size); } else if (os_strcmp(buf + 11, "CLEAR") == 0) { hostapd_ctrl_iface_acl_clear_list( &hapd->conf->accept_mac, &hapd->conf->num_accept_mac); hostapd_disassoc_accept_mac(hapd); } } else if (os_strncmp(buf, "DENY_ACL ", 9) == 0) { if (os_strncmp(buf + 9, "ADD_MAC ", 8) == 0) { if (!hostapd_ctrl_iface_acl_add_mac( &hapd->conf->deny_mac, &hapd->conf->num_deny_mac, buf + 17)) hostapd_disassoc_deny_mac(hapd); else reply_len = -1; } else if (os_strncmp(buf + 9, "DEL_MAC ", 8) == 0) { if (hostapd_ctrl_iface_acl_del_mac( &hapd->conf->deny_mac, &hapd->conf->num_deny_mac, buf + 17)) reply_len = -1; } else if (os_strcmp(buf + 9, "SHOW") == 0) { reply_len = hostapd_ctrl_iface_acl_show_mac( hapd->conf->deny_mac, hapd->conf->num_deny_mac, reply, reply_size); } else if (os_strcmp(buf + 9, "CLEAR") == 0) { hostapd_ctrl_iface_acl_clear_list( &hapd->conf->deny_mac, &hapd->conf->num_deny_mac); } #ifdef CONFIG_DPP } else if (os_strncmp(buf, "DPP_QR_CODE ", 12) == 0) { res = hostapd_dpp_qr_code(hapd, buf + 12); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_NFC_URI ", 12) == 0) { res = hostapd_dpp_nfc_uri(hapd, buf + 12); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_REQ ", 21) == 0) { res = hostapd_dpp_nfc_handover_req(hapd, buf + 20); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_SEL ", 21) == 0) { res = hostapd_dpp_nfc_handover_sel(hapd, buf + 20); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GEN ", 18) == 0) { res = dpp_bootstrap_gen(hapd->iface->interfaces->dpp, buf + 18); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_BOOTSTRAP_REMOVE ", 21) == 0) { if (dpp_bootstrap_remove(hapd->iface->interfaces->dpp, buf + 21) < 0) reply_len = -1; } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GET_URI ", 22) == 0) { const char *uri; uri = dpp_bootstrap_get_uri(hapd->iface->interfaces->dpp, atoi(buf + 22)); if (!uri) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%s", uri); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_BOOTSTRAP_INFO ", 19) == 0) { reply_len = dpp_bootstrap_info(hapd->iface->interfaces->dpp, atoi(buf + 19), reply, reply_size); } else if (os_strncmp(buf, "DPP_BOOTSTRAP_SET ", 18) == 0) { if (dpp_bootstrap_set(hapd->iface->interfaces->dpp, atoi(buf + 18), os_strchr(buf + 18, ' ')) < 0) reply_len = -1; } else if (os_strncmp(buf, "DPP_AUTH_INIT ", 14) == 0) { if (hostapd_dpp_auth_init(hapd, buf + 13) < 0) reply_len = -1; } else if (os_strncmp(buf, "DPP_LISTEN ", 11) == 0) { if (hostapd_dpp_listen(hapd, buf + 11) < 0) reply_len = -1; } else if (os_strcmp(buf, "DPP_STOP_LISTEN") == 0) { hostapd_dpp_stop(hapd); hostapd_dpp_listen_stop(hapd); } else if (os_strncmp(buf, "DPP_CONFIGURATOR_ADD", 20) == 0) { res = dpp_configurator_add(hapd->iface->interfaces->dpp, buf + 20); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_CONFIGURATOR_REMOVE ", 24) == 0) { if (dpp_configurator_remove(hapd->iface->interfaces->dpp, buf + 24) < 0) reply_len = -1; } else if (os_strncmp(buf, "DPP_CONFIGURATOR_SIGN ", 22) == 0) { if (hostapd_dpp_configurator_sign(hapd, buf + 21) < 0) reply_len = -1; } else if (os_strncmp(buf, "DPP_CONFIGURATOR_GET_KEY ", 25) == 0) { reply_len = dpp_configurator_get_key_id( hapd->iface->interfaces->dpp, atoi(buf + 25), reply, reply_size); } else if (os_strncmp(buf, "DPP_PKEX_ADD ", 13) == 0) { res = hostapd_dpp_pkex_add(hapd, buf + 12); if (res < 0) { reply_len = -1; } else { reply_len = os_snprintf(reply, reply_size, "%d", res); if (os_snprintf_error(reply_size, reply_len)) reply_len = -1; } } else if (os_strncmp(buf, "DPP_PKEX_REMOVE ", 16) == 0) { if (hostapd_dpp_pkex_remove(hapd, buf + 16) < 0) reply_len = -1; #ifdef CONFIG_DPP2 } else if (os_strncmp(buf, "DPP_CONTROLLER_START ", 21) == 0) { if (hostapd_dpp_controller_start(hapd, buf + 20) < 0) reply_len = -1; } else if (os_strcmp(buf, "DPP_CONTROLLER_START") == 0) { if (hostapd_dpp_controller_start(hapd, NULL) < 0) reply_len = -1; } else if (os_strcmp(buf, "DPP_CONTROLLER_STOP") == 0) { dpp_controller_stop(hapd->iface->interfaces->dpp); } else if (os_strncmp(buf, "DPP_CHIRP ", 10) == 0) { if (hostapd_dpp_chirp(hapd, buf + 9) < 0) reply_len = -1; } else if (os_strcmp(buf, "DPP_STOP_CHIRP") == 0) { hostapd_dpp_chirp_stop(hapd); #endif /* CONFIG_DPP2 */ #endif /* CONFIG_DPP */ #ifdef RADIUS_SERVER } else if (os_strncmp(buf, "DAC_REQUEST ", 12) == 0) { if (radius_server_dac_request(hapd->radius_srv, buf + 12) < 0) reply_len = -1; #endif /* RADIUS_SERVER */ } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) { reply_len = hostapd_ctrl_iface_get_capability( hapd, buf + 15, reply, reply_size); #ifdef CONFIG_PASN } else if (os_strcmp(buf, "PTKSA_CACHE_LIST") == 0) { reply_len = ptksa_cache_list(hapd->ptksa, reply, reply_size); #endif /* CONFIG_PASN */ } else { os_memcpy(reply, "UNKNOWN COMMAND\n", 16); reply_len = 16; } if (reply_len < 0) { os_memcpy(reply, "FAIL\n", 5); reply_len = 5; } return reply_len; } static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx, void *sock_ctx) { struct hostapd_data *hapd = eloop_ctx; char buf[4096]; int res; struct sockaddr_storage from; socklen_t fromlen = sizeof(from); char *reply, *pos = buf; const int reply_size = 4096; int reply_len; int level = MSG_DEBUG; #ifdef CONFIG_CTRL_IFACE_UDP unsigned char lcookie[CTRL_IFACE_COOKIE_LEN]; #endif /* CONFIG_CTRL_IFACE_UDP */ res = recvfrom(sock, buf, sizeof(buf) - 1, 0, (struct sockaddr *) &from, &fromlen); if (res < 0) { wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", strerror(errno)); return; } buf[res] = '\0'; reply = os_malloc(reply_size); if (reply == NULL) { if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, fromlen) < 0) { wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", strerror(errno)); } return; } #ifdef CONFIG_CTRL_IFACE_UDP if (os_strcmp(buf, "GET_COOKIE") == 0) { os_memcpy(reply, "COOKIE=", 7); wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1, hapd->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN; goto done; } if (os_strncmp(buf, "COOKIE=", 7) != 0 || hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) { wpa_printf(MSG_DEBUG, "CTRL: No cookie in the request - drop request"); os_free(reply); return; } if (os_memcmp(hapd->ctrl_iface_cookie, lcookie, CTRL_IFACE_COOKIE_LEN) != 0) { wpa_printf(MSG_DEBUG, "CTRL: Invalid cookie in the request - drop request"); os_free(reply); return; } pos = buf + 7 + 2 * CTRL_IFACE_COOKIE_LEN; while (*pos == ' ') pos++; #endif /* CONFIG_CTRL_IFACE_UDP */ if (os_strcmp(pos, "PING") == 0) level = MSG_EXCESSIVE; wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res); reply_len = hostapd_ctrl_iface_receive_process(hapd, pos, reply, reply_size, &from, fromlen); #ifdef CONFIG_CTRL_IFACE_UDP done: #endif /* CONFIG_CTRL_IFACE_UDP */ if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, fromlen) < 0) { wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", strerror(errno)); } os_free(reply); } #ifndef CONFIG_CTRL_IFACE_UDP static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd) { char *buf; size_t len; if (hapd->conf->ctrl_interface == NULL) return NULL; len = os_strlen(hapd->conf->ctrl_interface) + os_strlen(hapd->conf->iface) + 2; buf = os_malloc(len); if (buf == NULL) return NULL; os_snprintf(buf, len, "%s/%s", hapd->conf->ctrl_interface, hapd->conf->iface); buf[len - 1] = '\0'; return buf; } #endif /* CONFIG_CTRL_IFACE_UDP */ static void hostapd_ctrl_iface_msg_cb(void *ctx, int level, enum wpa_msg_type type, const char *txt, size_t len) { struct hostapd_data *hapd = ctx; if (hapd == NULL) return; hostapd_ctrl_iface_send(hapd, level, type, txt, len); } int hostapd_ctrl_iface_init(struct hostapd_data *hapd) { #ifdef CONFIG_CTRL_IFACE_UDP int port = HOSTAPD_CTRL_IFACE_PORT; char p[32] = { 0 }; char port_str[40], *tmp; char *pos; struct addrinfo hints = { 0 }, *res, *saveres; int n; if (hapd->ctrl_sock > -1) { wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); return 0; } if (hapd->conf->ctrl_interface == NULL) return 0; pos = os_strstr(hapd->conf->ctrl_interface, "udp:"); if (pos) { pos += 4; port = atoi(pos); if (port <= 0) { wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port"); goto fail; } } dl_list_init(&hapd->ctrl_dst); hapd->ctrl_sock = -1; os_get_random(hapd->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE hints.ai_flags = AI_PASSIVE; #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ #ifdef CONFIG_CTRL_IFACE_UDP_IPV6 hints.ai_family = AF_INET6; #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ hints.ai_family = AF_INET; #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ hints.ai_socktype = SOCK_DGRAM; try_again: os_snprintf(p, sizeof(p), "%d", port); n = getaddrinfo(NULL, p, &hints, &res); if (n) { wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); goto fail; } saveres = res; hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); if (hapd->ctrl_sock < 0) { wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); goto fail; } if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) { port--; if ((HOSTAPD_CTRL_IFACE_PORT - port) < HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos) goto try_again; wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); goto fail; } freeaddrinfo(saveres); os_snprintf(port_str, sizeof(port_str), "udp:%d", port); tmp = os_strdup(port_str); if (tmp) { os_free(hapd->conf->ctrl_interface); hapd->conf->ctrl_interface = tmp; } wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port); if (eloop_register_read_sock(hapd->ctrl_sock, hostapd_ctrl_iface_receive, hapd, NULL) < 0) { hostapd_ctrl_iface_deinit(hapd); return -1; } hapd->msg_ctx = hapd; wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); return 0; fail: if (hapd->ctrl_sock >= 0) close(hapd->ctrl_sock); return -1; #else /* CONFIG_CTRL_IFACE_UDP */ struct sockaddr_un addr; int s = -1; char *fname = NULL; if (hapd->ctrl_sock > -1) { wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); return 0; } dl_list_init(&hapd->ctrl_dst); if (hapd->conf->ctrl_interface == NULL) return 0; if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { if (errno == EEXIST) { wpa_printf(MSG_DEBUG, "Using existing control " "interface directory."); } else { wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", strerror(errno)); goto fail; } } if (hapd->conf->ctrl_interface_gid_set && lchown(hapd->conf->ctrl_interface, -1, hapd->conf->ctrl_interface_gid) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", strerror(errno)); return -1; } if (!hapd->conf->ctrl_interface_gid_set && hapd->iface->interfaces->ctrl_iface_group && lchown(hapd->conf->ctrl_interface, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", strerror(errno)); return -1; } #ifdef ANDROID /* * Android is using umask 0077 which would leave the control interface * directory without group access. This breaks things since Wi-Fi * framework assumes that this directory can be accessed by other * applications in the wifi group. Fix this by adding group access even * if umask value would prevent this. */ if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s", strerror(errno)); /* Try to continue anyway */ } #endif /* ANDROID */ if (os_strlen(hapd->conf->ctrl_interface) + 1 + os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path)) goto fail; s = socket(PF_UNIX, SOCK_DGRAM, 0); if (s < 0) { wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); goto fail; } os_memset(&addr, 0, sizeof(addr)); #ifdef __FreeBSD__ addr.sun_len = sizeof(addr); #endif /* __FreeBSD__ */ addr.sun_family = AF_UNIX; fname = hostapd_ctrl_iface_path(hapd); if (fname == NULL) goto fail; os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", strerror(errno)); if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" " allow connections - assuming it was left" "over from forced program termination"); if (unlink(fname) < 0) { wpa_printf(MSG_ERROR, "Could not unlink existing ctrl_iface socket '%s': %s", fname, strerror(errno)); goto fail; } if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_ERROR, "hostapd-ctrl-iface: bind(PF_UNIX): %s", strerror(errno)); goto fail; } wpa_printf(MSG_DEBUG, "Successfully replaced leftover " "ctrl_iface socket '%s'", fname); } else { wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " "be in use - cannot override it"); wpa_printf(MSG_INFO, "Delete '%s' manually if it is " "not used anymore", fname); os_free(fname); fname = NULL; goto fail; } } if (hapd->conf->ctrl_interface_gid_set && lchown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s", strerror(errno)); goto fail; } if (!hapd->conf->ctrl_interface_gid_set && hapd->iface->interfaces->ctrl_iface_group && lchown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s", strerror(errno)); goto fail; } if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", strerror(errno)); goto fail; } os_free(fname); hapd->ctrl_sock = s; if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd, NULL) < 0) { hostapd_ctrl_iface_deinit(hapd); return -1; } hapd->msg_ctx = hapd; wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); return 0; fail: if (s >= 0) close(s); if (fname) { unlink(fname); os_free(fname); } return -1; #endif /* CONFIG_CTRL_IFACE_UDP */ } void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd) { struct wpa_ctrl_dst *dst, *prev; if (hapd->ctrl_sock > -1) { #ifndef CONFIG_CTRL_IFACE_UDP char *fname; #endif /* !CONFIG_CTRL_IFACE_UDP */ eloop_unregister_read_sock(hapd->ctrl_sock); close(hapd->ctrl_sock); hapd->ctrl_sock = -1; #ifndef CONFIG_CTRL_IFACE_UDP fname = hostapd_ctrl_iface_path(hapd); if (fname) unlink(fname); os_free(fname); if (hapd->conf->ctrl_interface && rmdir(hapd->conf->ctrl_interface) < 0) { if (errno == ENOTEMPTY) { wpa_printf(MSG_DEBUG, "Control interface " "directory not empty - leaving it " "behind"); } else { wpa_printf(MSG_ERROR, "rmdir[ctrl_interface=%s]: %s", hapd->conf->ctrl_interface, strerror(errno)); } } #endif /* !CONFIG_CTRL_IFACE_UDP */ } dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst, list) os_free(dst); #ifdef CONFIG_TESTING_OPTIONS l2_packet_deinit(hapd->l2_test); hapd->l2_test = NULL; #endif /* CONFIG_TESTING_OPTIONS */ } static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces, char *buf) { if (hostapd_add_iface(interfaces, buf) < 0) { wpa_printf(MSG_ERROR, "Adding interface %s failed", buf); return -1; } return 0; } static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces, char *buf) { if (hostapd_remove_iface(interfaces, buf) < 0) { wpa_printf(MSG_ERROR, "Removing interface %s failed", buf); return -1; } return 0; } static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces, struct sockaddr_storage *from, socklen_t fromlen, char *input) { return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen, input); } static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces, struct sockaddr_storage *from, socklen_t fromlen) { return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen); } static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces) { #ifdef CONFIG_WPS_TESTING wps_version_number = 0x20; wps_testing_dummy_cred = 0; wps_corrupt_pkhash = 0; #endif /* CONFIG_WPS_TESTING */ #ifdef CONFIG_TESTING_OPTIONS #ifdef CONFIG_DPP dpp_test = DPP_TEST_DISABLED; #ifdef CONFIG_DPP2 dpp_version_override = 2; #else /* CONFIG_DPP2 */ dpp_version_override = 1; #endif /* CONFIG_DPP2 */ #endif /* CONFIG_DPP */ #endif /* CONFIG_TESTING_OPTIONS */ #ifdef CONFIG_DPP dpp_global_clear(interfaces->dpp); #endif /* CONFIG_DPP */ } #ifdef CONFIG_FST static int hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces, const char *cmd) { char ifname[IFNAMSIZ + 1]; struct fst_iface_cfg cfg; struct hostapd_data *hapd; struct fst_wpa_obj iface_obj; if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) { hapd = hostapd_get_iface(interfaces, ifname); if (hapd) { if (hapd->iface->fst) { wpa_printf(MSG_INFO, "FST: Already attached"); return -1; } fst_hostapd_fill_iface_obj(hapd, &iface_obj); hapd->iface->fst = fst_attach(ifname, hapd->own_addr, &iface_obj, &cfg); if (hapd->iface->fst) return 0; } } return -EINVAL; } static int hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces, const char *cmd) { char ifname[IFNAMSIZ + 1]; struct hostapd_data * hapd; if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) { hapd = hostapd_get_iface(interfaces, ifname); if (hapd) { if (!fst_iface_detach(ifname)) { hapd->iface->fst = NULL; hapd->iface->fst_ies = NULL; return 0; } } } return -EINVAL; } #endif /* CONFIG_FST */ static struct hostapd_data * hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces, const char *ifname) { size_t i, j; for (i = 0; i < interfaces->count; i++) { struct hostapd_iface *iface = interfaces->iface[i]; for (j = 0; j < iface->num_bss; j++) { struct hostapd_data *hapd; hapd = iface->bss[j]; if (os_strcmp(ifname, hapd->conf->iface) == 0) return hapd; } } return NULL; } static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd, struct hostapd_data *dst_hapd, const char *param) { int res; char *value; value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN); if (!value) { wpa_printf(MSG_ERROR, "DUP: cannot allocate buffer to stringify %s", param); goto error_return; } if (os_strcmp(param, "wpa") == 0) { os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d", src_hapd->conf->wpa); } else if (os_strcmp(param, "wpa_key_mgmt") == 0 && src_hapd->conf->wpa_key_mgmt) { res = hostapd_ctrl_iface_get_key_mgmt( src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN); if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res)) goto error_stringify; } else if (os_strcmp(param, "wpa_pairwise") == 0 && src_hapd->conf->wpa_pairwise) { res = wpa_write_ciphers(value, value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, src_hapd->conf->wpa_pairwise, " "); if (res < 0) goto error_stringify; } else if (os_strcmp(param, "rsn_pairwise") == 0 && src_hapd->conf->rsn_pairwise) { res = wpa_write_ciphers(value, value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, src_hapd->conf->rsn_pairwise, " "); if (res < 0) goto error_stringify; } else if (os_strcmp(param, "wpa_passphrase") == 0 && src_hapd->conf->ssid.wpa_passphrase) { os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s", src_hapd->conf->ssid.wpa_passphrase); } else if (os_strcmp(param, "wpa_psk") == 0 && src_hapd->conf->ssid.wpa_psk_set) { wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN); } else { wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param); goto error_return; } res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value); os_free(value); return res; error_stringify: wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param); error_return: os_free(value); return -1; } static int hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces, const char *input, char *reply, int reply_size) { size_t i, j; int res; char *pos, *end; struct hostapd_iface *iface; int show_ctrl = 0; if (input) show_ctrl = !!os_strstr(input, "ctrl"); pos = reply; end = reply + reply_size; for (i = 0; i < interfaces->count; i++) { iface = interfaces->iface[i]; for (j = 0; j < iface->num_bss; j++) { struct hostapd_bss_config *conf; conf = iface->conf->bss[j]; if (show_ctrl) res = os_snprintf(pos, end - pos, "%s ctrl_iface=%s\n", conf->iface, conf->ctrl_interface ? conf->ctrl_interface : "N/A"); else res = os_snprintf(pos, end - pos, "%s\n", conf->iface); if (os_snprintf_error(end - pos, res)) { *pos = '\0'; return pos - reply; } pos += res; } } return pos - reply; } static int hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces, char *cmd) { char *p_start = cmd, *p_end; struct hostapd_data *src_hapd, *dst_hapd; /* cmd: " */ p_end = os_strchr(p_start, ' '); if (!p_end) { wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'", cmd); return -1; } *p_end = '\0'; src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); if (!src_hapd) { wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'", p_start); return -1; } p_start = p_end + 1; p_end = os_strchr(p_start, ' '); if (!p_end) { wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'", cmd); return -1; } *p_end = '\0'; dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); if (!dst_hapd) { wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'", p_start); return -1; } p_start = p_end + 1; return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start); } static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces, const char *ifname, char *buf, char *reply, int reply_size, struct sockaddr_storage *from, socklen_t fromlen) { struct hostapd_data *hapd; hapd = hostapd_interfaces_get_hapd(interfaces, ifname); if (hapd == NULL) { int res; res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n"); if (os_snprintf_error(reply_size, res)) return -1; return res; } return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size, from, fromlen); } static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx, void *sock_ctx) { struct hapd_interfaces *interfaces = eloop_ctx; char buffer[256], *buf = buffer; int res; struct sockaddr_storage from; socklen_t fromlen = sizeof(from); char *reply; int reply_len; const int reply_size = 4096; #ifdef CONFIG_CTRL_IFACE_UDP unsigned char lcookie[CTRL_IFACE_COOKIE_LEN]; #endif /* CONFIG_CTRL_IFACE_UDP */ res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0, (struct sockaddr *) &from, &fromlen); if (res < 0) { wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", strerror(errno)); return; } buf[res] = '\0'; wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf); reply = os_malloc(reply_size); if (reply == NULL) { if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, fromlen) < 0) { wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", strerror(errno)); } return; } os_memcpy(reply, "OK\n", 3); reply_len = 3; #ifdef CONFIG_CTRL_IFACE_UDP if (os_strcmp(buf, "GET_COOKIE") == 0) { os_memcpy(reply, "COOKIE=", 7); wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1, interfaces->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN; goto send_reply; } if (os_strncmp(buf, "COOKIE=", 7) != 0 || hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) { wpa_printf(MSG_DEBUG, "CTRL: No cookie in the request - drop request"); os_free(reply); return; } if (os_memcmp(interfaces->ctrl_iface_cookie, lcookie, CTRL_IFACE_COOKIE_LEN) != 0) { wpa_printf(MSG_DEBUG, "CTRL: Invalid cookie in the request - drop request"); os_free(reply); return; } buf += 7 + 2 * CTRL_IFACE_COOKIE_LEN; while (*buf == ' ') buf++; #endif /* CONFIG_CTRL_IFACE_UDP */ if (os_strncmp(buf, "IFNAME=", 7) == 0) { char *pos = os_strchr(buf + 7, ' '); if (pos) { *pos++ = '\0'; reply_len = hostapd_global_ctrl_iface_ifname( interfaces, buf + 7, pos, reply, reply_size, &from, fromlen); goto send_reply; } } if (os_strcmp(buf, "PING") == 0) { os_memcpy(reply, "PONG\n", 5); reply_len = 5; } else if (os_strncmp(buf, "RELOG", 5) == 0) { if (wpa_debug_reopen_file() < 0) reply_len = -1; } else if (os_strcmp(buf, "FLUSH") == 0) { hostapd_ctrl_iface_flush(interfaces); } else if (os_strncmp(buf, "ADD ", 4) == 0) { if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0) reply_len = -1; } else if (os_strncmp(buf, "REMOVE ", 7) == 0) { if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0) reply_len = -1; } else if (os_strcmp(buf, "ATTACH") == 0) { if (hostapd_global_ctrl_iface_attach(interfaces, &from, fromlen, NULL)) reply_len = -1; } else if (os_strncmp(buf, "ATTACH ", 7) == 0) { if (hostapd_global_ctrl_iface_attach(interfaces, &from, fromlen, buf + 7)) reply_len = -1; } else if (os_strcmp(buf, "DETACH") == 0) { if (hostapd_global_ctrl_iface_detach(interfaces, &from, fromlen)) reply_len = -1; #ifdef CONFIG_MODULE_TESTS } else if (os_strcmp(buf, "MODULE_TESTS") == 0) { if (hapd_module_tests() < 0) reply_len = -1; #endif /* CONFIG_MODULE_TESTS */ #ifdef CONFIG_FST } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) { if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11)) reply_len = os_snprintf(reply, reply_size, "OK\n"); else reply_len = -1; } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) { if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11)) reply_len = os_snprintf(reply, reply_size, "OK\n"); else reply_len = -1; } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) { reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size); #endif /* CONFIG_FST */ } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) { if (!hostapd_global_ctrl_iface_dup_network(interfaces, buf + 12)) reply_len = os_snprintf(reply, reply_size, "OK\n"); else reply_len = -1; } else if (os_strncmp(buf, "INTERFACES", 10) == 0) { reply_len = hostapd_global_ctrl_iface_interfaces( interfaces, buf + 10, reply, sizeof(buffer)); } else if (os_strcmp(buf, "TERMINATE") == 0) { eloop_terminate(); } else { wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command " "ignored"); reply_len = -1; } send_reply: if (reply_len < 0) { os_memcpy(reply, "FAIL\n", 5); reply_len = 5; } if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, fromlen) < 0) { wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", strerror(errno)); } os_free(reply); } #ifndef CONFIG_CTRL_IFACE_UDP static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface) { char *buf; size_t len; if (interface->global_iface_path == NULL) return NULL; len = os_strlen(interface->global_iface_path) + os_strlen(interface->global_iface_name) + 2; buf = os_malloc(len); if (buf == NULL) return NULL; os_snprintf(buf, len, "%s/%s", interface->global_iface_path, interface->global_iface_name); buf[len - 1] = '\0'; return buf; } #endif /* CONFIG_CTRL_IFACE_UDP */ int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface) { #ifdef CONFIG_CTRL_IFACE_UDP int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT; char p[32] = { 0 }; char *pos; struct addrinfo hints = { 0 }, *res, *saveres; int n; if (interface->global_ctrl_sock > -1) { wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); return 0; } if (interface->global_iface_path == NULL) return 0; pos = os_strstr(interface->global_iface_path, "udp:"); if (pos) { pos += 4; port = atoi(pos); if (port <= 0) { wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port"); goto fail; } } os_get_random(interface->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE hints.ai_flags = AI_PASSIVE; #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ #ifdef CONFIG_CTRL_IFACE_UDP_IPV6 hints.ai_family = AF_INET6; #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ hints.ai_family = AF_INET; #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ hints.ai_socktype = SOCK_DGRAM; try_again: os_snprintf(p, sizeof(p), "%d", port); n = getaddrinfo(NULL, p, &hints, &res); if (n) { wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); goto fail; } saveres = res; interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); if (interface->global_ctrl_sock < 0) { wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); goto fail; } if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) { port++; if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) < HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos) goto try_again; wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); goto fail; } freeaddrinfo(saveres); wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port); if (eloop_register_read_sock(interface->global_ctrl_sock, hostapd_global_ctrl_iface_receive, interface, NULL) < 0) { hostapd_global_ctrl_iface_deinit(interface); return -1; } wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); return 0; fail: if (interface->global_ctrl_sock >= 0) close(interface->global_ctrl_sock); return -1; #else /* CONFIG_CTRL_IFACE_UDP */ struct sockaddr_un addr; int s = -1; char *fname = NULL; if (interface->global_iface_path == NULL) { wpa_printf(MSG_DEBUG, "ctrl_iface not configured!"); return 0; } if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) { if (errno == EEXIST) { wpa_printf(MSG_DEBUG, "Using existing control " "interface directory."); } else { wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", strerror(errno)); goto fail; } } else if (interface->ctrl_iface_group && lchown(interface->global_iface_path, -1, interface->ctrl_iface_group) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", strerror(errno)); goto fail; } if (os_strlen(interface->global_iface_path) + 1 + os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path)) goto fail; s = socket(PF_UNIX, SOCK_DGRAM, 0); if (s < 0) { wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); goto fail; } os_memset(&addr, 0, sizeof(addr)); #ifdef __FreeBSD__ addr.sun_len = sizeof(addr); #endif /* __FreeBSD__ */ addr.sun_family = AF_UNIX; fname = hostapd_global_ctrl_iface_path(interface); if (fname == NULL) goto fail; os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", strerror(errno)); if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" " allow connections - assuming it was left" "over from forced program termination"); if (unlink(fname) < 0) { wpa_printf(MSG_ERROR, "Could not unlink existing ctrl_iface socket '%s': %s", fname, strerror(errno)); goto fail; } if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s", strerror(errno)); goto fail; } wpa_printf(MSG_DEBUG, "Successfully replaced leftover " "ctrl_iface socket '%s'", fname); } else { wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " "be in use - cannot override it"); wpa_printf(MSG_INFO, "Delete '%s' manually if it is " "not used anymore", fname); os_free(fname); fname = NULL; goto fail; } } if (interface->ctrl_iface_group && lchown(fname, -1, interface->ctrl_iface_group) < 0) { wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", strerror(errno)); goto fail; } if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", strerror(errno)); goto fail; } os_free(fname); interface->global_ctrl_sock = s; eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive, interface, NULL); wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); return 0; fail: if (s >= 0) close(s); if (fname) { unlink(fname); os_free(fname); } return -1; #endif /* CONFIG_CTRL_IFACE_UDP */ } void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces) { #ifndef CONFIG_CTRL_IFACE_UDP char *fname = NULL; #endif /* CONFIG_CTRL_IFACE_UDP */ struct wpa_ctrl_dst *dst, *prev; if (interfaces->global_ctrl_sock > -1) { eloop_unregister_read_sock(interfaces->global_ctrl_sock); close(interfaces->global_ctrl_sock); interfaces->global_ctrl_sock = -1; #ifndef CONFIG_CTRL_IFACE_UDP fname = hostapd_global_ctrl_iface_path(interfaces); if (fname) { unlink(fname); os_free(fname); } if (interfaces->global_iface_path && rmdir(interfaces->global_iface_path) < 0) { if (errno == ENOTEMPTY) { wpa_printf(MSG_DEBUG, "Control interface " "directory not empty - leaving it " "behind"); } else { wpa_printf(MSG_ERROR, "rmdir[ctrl_interface=%s]: %s", interfaces->global_iface_path, strerror(errno)); } } #endif /* CONFIG_CTRL_IFACE_UDP */ } os_free(interfaces->global_iface_path); interfaces->global_iface_path = NULL; dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst, struct wpa_ctrl_dst, list) os_free(dst); } static int hostapd_ctrl_check_event_enabled(struct wpa_ctrl_dst *dst, const char *buf) { /* Enable Probe Request events based on explicit request. * Other events are enabled by default. */ if (str_starts(buf, RX_PROBE_REQUEST)) return !!(dst->events & WPA_EVENT_RX_PROBE_REQUEST); return 1; } static void hostapd_ctrl_iface_send_internal(int sock, struct dl_list *ctrl_dst, const char *ifname, int level, const char *buf, size_t len) { struct wpa_ctrl_dst *dst, *next; struct msghdr msg; int idx, res; struct iovec io[5]; char levelstr[10]; if (sock < 0 || dl_list_empty(ctrl_dst)) return; res = os_snprintf(levelstr, sizeof(levelstr), "<%d>", level); if (os_snprintf_error(sizeof(levelstr), res)) return; idx = 0; if (ifname) { io[idx].iov_base = "IFNAME="; io[idx].iov_len = 7; idx++; io[idx].iov_base = (char *) ifname; io[idx].iov_len = os_strlen(ifname); idx++; io[idx].iov_base = " "; io[idx].iov_len = 1; idx++; } io[idx].iov_base = levelstr; io[idx].iov_len = os_strlen(levelstr); idx++; io[idx].iov_base = (char *) buf; io[idx].iov_len = len; idx++; os_memset(&msg, 0, sizeof(msg)); msg.msg_iov = io; msg.msg_iovlen = idx; idx = 0; dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) { if ((level >= dst->debug_level) && hostapd_ctrl_check_event_enabled(dst, buf)) { sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send", &dst->addr, dst->addrlen); msg.msg_name = &dst->addr; msg.msg_namelen = dst->addrlen; if (sendmsg(sock, &msg, 0) < 0) { int _errno = errno; wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: " "%d - %s", idx, errno, strerror(errno)); dst->errors++; if (dst->errors > 10 || _errno == ENOENT) { ctrl_iface_detach(ctrl_dst, &dst->addr, dst->addrlen); } } else dst->errors = 0; } idx++; } } static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, enum wpa_msg_type type, const char *buf, size_t len) { if (type != WPA_MSG_NO_GLOBAL) { hostapd_ctrl_iface_send_internal( hapd->iface->interfaces->global_ctrl_sock, &hapd->iface->interfaces->global_ctrl_dst, type != WPA_MSG_PER_INTERFACE ? NULL : hapd->conf->iface, level, buf, len); } if (type != WPA_MSG_ONLY_GLOBAL) { hostapd_ctrl_iface_send_internal( hapd->ctrl_sock, &hapd->ctrl_dst, NULL, level, buf, len); } } #endif /* CONFIG_NATIVE_WINDOWS */