/****************************************************************************** * * * Function: get_hostid_by_host * * * * Purpose: check for host name and return hostid * * * * Parameters: host - [IN] require size 'HOST_HOST_LEN_MAX' * * * * Return value: SUCCEED - host is found * * FAIL - an error occurred or host not found * * * * Author: Alexander Vladishev * * * * Comments: NB! adds host to the database if it does not exist * * * ******************************************************************************/ static int get_hostid_by_host(const zbx_socket_t *sock, const char *host, const char *ip, unsigned short port, const char *host_metadata, zbx_uint64_t *hostid, char *error) { const char *__function_name = "get_hostid_by_host"; char *host_esc, dns[INTERFACE_DNS_LEN_MAX], *ch_error; DB_RESULT result; DB_ROW row; int ret = FAIL; zabbix_log(LOG_LEVEL_DEBUG, "In %s() host:'%s'", __function_name, host); if (FAIL == zbx_check_hostname(host, &ch_error)) { zbx_snprintf(error, MAX_STRING_LEN, "invalid host name [%s]: %s", host, ch_error); zbx_free(ch_error); goto out; } host_esc = DBdyn_escape_string(host); result = #if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL) DBselect( "select hostid,status,tls_accept,tls_issuer,tls_subject,tls_psk_identity" " from hosts" " where host='%s'" " and status in (%d,%d)" " and flags<>%d" " and proxy_hostid is null", host_esc, HOST_STATUS_MONITORED, HOST_STATUS_NOT_MONITORED, ZBX_FLAG_DISCOVERY_PROTOTYPE); #else DBselect( "select hostid,status,tls_accept" " from hosts" " where host='%s'" " and status in (%d,%d)" " and flags<>%d" " and proxy_hostid is null", host_esc, HOST_STATUS_MONITORED, HOST_STATUS_NOT_MONITORED, ZBX_FLAG_DISCOVERY_PROTOTYPE); #endif if (NULL != (row = DBfetch(result))) { if (HOST_STATUS_MONITORED == atoi(row[1])) { unsigned int tls_accept; tls_accept = (unsigned int)atoi(row[2]); if (0 == (tls_accept & sock->connection_type)) { zbx_snprintf(error, MAX_STRING_LEN, "connection of type \"%s\" is not allowed for host" " \"%s\"", zbx_tls_connection_type_name(sock->connection_type), host); goto done; } #if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL) if (ZBX_TCP_SEC_TLS_CERT == sock->connection_type) { zbx_tls_conn_attr_t attr; if (SUCCEED != zbx_tls_get_attr_cert(sock, &attr)) { THIS_SHOULD_NEVER_HAPPEN; zbx_snprintf(error, MAX_STRING_LEN, "cannot get connection attributes for host" " \"%s\"", host); goto done; } /* simplified match, not compliant with RFC 4517, 4518 */ if ('\0' != *row[3] && 0 != strcmp(row[3], attr.issuer)) { zbx_snprintf(error, MAX_STRING_LEN, "certificate issuer does not match for" " host \"%s\"", host); goto done; } /* simplified match, not compliant with RFC 4517, 4518 */ if ('\0' != *row[4] && 0 != strcmp(row[4], attr.subject)) { zbx_snprintf(error, MAX_STRING_LEN, "certificate subject does not match for" " host \"%s\"", host); goto done; } } else if (ZBX_TCP_SEC_TLS_PSK == sock->connection_type) { zbx_tls_conn_attr_t attr; if (SUCCEED != zbx_tls_get_attr_psk(sock, &attr)) { THIS_SHOULD_NEVER_HAPPEN; zbx_snprintf(error, MAX_STRING_LEN, "cannot get connection attributes for host" " \"%s\"", host); goto done; } if (strlen(row[5]) != attr.psk_identity_len || 0 != memcmp(row[5], attr.psk_identity, attr.psk_identity_len)) { zbx_snprintf(error, MAX_STRING_LEN, "false PSK identity for host \"%s\"", host); goto done; } } #endif ZBX_STR2UINT64(*hostid, row[0]); ret = SUCCEED; } else zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not monitored", host); } else { zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not found", host); /* remove ::ffff: prefix from IPv4-mapped IPv6 addresses */ if (0 == strncmp("::ffff:", ip, 7) && SUCCEED == is_ip4(ip + 7)) ip += 7; zbx_alarm_on(CONFIG_TIMEOUT); zbx_gethost_by_ip(ip, dns, sizeof(dns)); zbx_alarm_off(); DBbegin(); if (0 != (program_type & ZBX_PROGRAM_TYPE_SERVER)) DBregister_host(0, host, ip, dns, port, host_metadata, (int)time(NULL)); else if (0 != (program_type & ZBX_PROGRAM_TYPE_PROXY)) DBproxy_register_host(host, ip, dns, port, host_metadata); DBcommit(); } done: DBfree_result(result); zbx_free(host_esc); out: zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(ret)); return ret; }
/****************************************************************************** * * * Function: get_hostid_by_host * * * * Purpose: check for host name and return hostid * * * * Parameters: host - [IN] require size 'HOST_HOST_LEN_MAX' * * * * Return value: SUCCEED - host is found * * FAIL - an error occurred or host not found * * * * Author: Alexander Vladishev * * * * Comments: * * * ******************************************************************************/ static int get_hostid_by_host(const char *host, const char *ip, unsigned short port, zbx_uint64_t *hostid, char *error) { const char *__function_name = "get_hostid_by_host"; char *host_esc, dns[INTERFACE_DNS_LEN_MAX]; DB_RESULT result; DB_ROW row; int res = FAIL; zabbix_log(LOG_LEVEL_DEBUG, "In %s() host:'%s'", __function_name, host); if (FAIL == zbx_check_hostname(host)) { zbx_snprintf(error, MAX_STRING_LEN, "invalid host name [%s]", host); goto out; } host_esc = DBdyn_escape_string(host); result = DBselect( "select hostid,status" " from hosts" " where host='%s'" " and status in (%d,%d)" " and proxy_hostid is null" DB_NODE, host_esc, HOST_STATUS_MONITORED, HOST_STATUS_NOT_MONITORED, DBnode_local("hostid")); if (NULL != (row = DBfetch(result))) { if (HOST_STATUS_MONITORED == atoi(row[1])) { ZBX_STR2UINT64(*hostid, row[0]); res = SUCCEED; } else zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not monitored", host); } else { zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not found", host); /* remove ::ffff: prefix from IPv4-mapped IPv6 addresses */ if (0 == strncmp("::ffff:", ip, 7) && SUCCEED == is_ip4(ip + 7)) ip += 7; alarm(CONFIG_TIMEOUT); zbx_gethost_by_ip(ip, dns, sizeof(dns)); alarm(0); DBbegin(); if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER)) { DBregister_host(0, host, ip, dns, port, (int)time(NULL)); } else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY)) { DBproxy_register_host(host, ip, dns, port); } DBcommit(); } DBfree_result(result); zbx_free(host_esc); out: zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res)); return res; }
/****************************************************************************** * * * Function: get_hostid_by_host * * * * Purpose: check for host name and return hostid * * * * Parameters: host - [IN] require size 'HOST_HOST_LEN_MAX' * * * * Return value: SUCCEED - host is found * * FAIL - an error occurred or host not found * * * * Author: Alexander Vladishev * * * * Comments: * * * ******************************************************************************/ static int get_hostid_by_host(const char *host, zbx_uint64_t *hostid, char *error) { char *host_esc; DB_RESULT result; DB_ROW row; int res = FAIL; zabbix_log(LOG_LEVEL_DEBUG, "In get_hostid_by_host() host:'%s'", host); if (FAIL == zbx_check_hostname(host)) { zbx_snprintf(error, MAX_STRING_LEN, "invalid host name [%s]", host); return res; } host_esc = DBdyn_escape_string(host); result = DBselect( "select hostid,status" " from hosts" " where host='%s'" " and status in (%d,%d)" " and proxy_hostid=0" DB_NODE, host_esc, HOST_STATUS_MONITORED, HOST_STATUS_NOT_MONITORED, DBnode_local("hostid")); if (NULL != (row = DBfetch(result))) { if (HOST_STATUS_MONITORED == atoi(row[1])) { ZBX_STR2UINT64(*hostid, row[0]); res = SUCCEED; } else zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not monitored", host); } else { zbx_snprintf(error, MAX_STRING_LEN, "host [%s] not found", host); DBbegin(); if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER)) { DBregister_host(0, host, (int)time(NULL)); } else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY)) { DBproxy_register_host(host); } DBcommit(); } DBfree_result(result); zbx_free(host_esc); return res; }