/* * Asterisk -- An open source telephony toolkit. * * Copyright (C) 2018, CFWare, LLC * * Corey Farrell * * See http://www.asterisk.org for more information about * the Asterisk project. Please do not directly contact * any of the maintainers of this project for assistance; * the project provides a web site, mailing lists and IRC * channels for your use. * * This program is free software, distributed under the terms of * the GNU General Public License Version 2. See the LICENSE file * at the top of the source tree. */ /*! \file * * \brief Symbols related to asterisk.conf options and paths. * * \author Corey Farrell */ /*** MODULEINFO core ***/ #include "asterisk.h" #include "asterisk/_private.h" #include "asterisk/app.h" #include "asterisk/config.h" #include "asterisk/logger.h" #include "asterisk/options.h" #include "asterisk/paths.h" #include "asterisk/pbx.h" #include "asterisk/rtp_engine.h" #include "asterisk/strings.h" #include "asterisk/utils.h" #include "../defaults.h" #include #include /*! Default minimum DTMF digit length - 80ms */ #define AST_MIN_DTMF_DURATION 80 #define DEFAULT_MONITOR_DIR DEFAULT_SPOOL_DIR "/monitor" #define DEFAULT_RECORDING_DIR DEFAULT_SPOOL_DIR "/recording" /*! \defgroup main_options Main Configuration Options * \brief Main configuration options from asterisk.conf or OS command line on starting Asterisk. * \arg \ref asterisk.conf "Config_ast" * \note Some of them can be changed in the CLI */ /*! @{ */ struct ast_flags ast_options = { AST_DEFAULT_OPTIONS }; /*! Maximum active system verbosity level. */ int ast_verb_sys_level; /*! Verbosity level */ int option_verbose; /*! Debug level */ int option_debug; /*! Trace level */ int option_trace; /*! Default to -1 to know if we have read the level from pjproject yet. */ int ast_pjproject_max_log_level = -1; int ast_option_pjproject_log_level; int ast_option_pjproject_cache_pools; /*! Max load avg on system */ double ast_option_maxload; /*! Max number of active calls */ int ast_option_maxcalls; /*! Max number of open file handles (files, sockets) */ int ast_option_maxfiles; /*! Minimum duration of DTMF. */ unsigned int option_dtmfminduration = AST_MIN_DTMF_DURATION; #if defined(HAVE_SYSINFO) /*! Minimum amount of free system memory - stop accepting calls if free memory falls below this watermark */ long option_minmemfree; #endif int ast_option_rtpusedynamic = 1; unsigned int ast_option_rtpptdynamic = 35; /*! @} */ struct ast_eid ast_eid_default; /* XXX tmpdir is a subdir of the spool directory, and no way to remap it */ char record_cache_dir[AST_CACHE_DIR_LEN] = DEFAULT_TMP_DIR; char ast_defaultlanguage[MAX_LANGUAGE] = DEFAULT_LANGUAGE; struct _cfg_paths { char cache_dir[PATH_MAX]; char config_dir[PATH_MAX]; char module_dir[PATH_MAX]; char spool_dir[PATH_MAX]; char monitor_dir[PATH_MAX]; char recording_dir[PATH_MAX]; char var_dir[PATH_MAX]; char data_dir[PATH_MAX]; char log_dir[PATH_MAX]; char agi_dir[PATH_MAX]; char run_dir[PATH_MAX]; char key_dir[PATH_MAX]; char config_file[PATH_MAX]; char db_path[PATH_MAX]; char sbin_dir[PATH_MAX]; char pid_path[PATH_MAX]; char socket_path[PATH_MAX]; char run_user[PATH_MAX]; char run_group[PATH_MAX]; char system_name[128]; char ctl_perms[PATH_MAX]; char ctl_owner[PATH_MAX]; char ctl_group[PATH_MAX]; char ctl_file[PATH_MAX]; }; static struct _cfg_paths cfg_paths = { .cache_dir = DEFAULT_CACHE_DIR, .config_dir = DEFAULT_CONFIG_DIR, .module_dir = DEFAULT_MODULE_DIR, .spool_dir = DEFAULT_SPOOL_DIR, .monitor_dir = DEFAULT_MONITOR_DIR, .recording_dir = DEFAULT_RECORDING_DIR, .var_dir = DEFAULT_VAR_DIR, .data_dir = DEFAULT_DATA_DIR, .log_dir = DEFAULT_LOG_DIR, .agi_dir = DEFAULT_AGI_DIR, .run_dir = DEFAULT_RUN_DIR, .key_dir = DEFAULT_KEY_DIR, .config_file = DEFAULT_CONFIG_FILE, .db_path = DEFAULT_DB, .sbin_dir = DEFAULT_SBIN_DIR, .pid_path = DEFAULT_PID, .socket_path = DEFAULT_SOCKET, .ctl_file = "asterisk.ctl", }; const char *ast_config_AST_CACHE_DIR = cfg_paths.cache_dir; const char *ast_config_AST_CONFIG_DIR = cfg_paths.config_dir; const char *ast_config_AST_CONFIG_FILE = cfg_paths.config_file; const char *ast_config_AST_MODULE_DIR = cfg_paths.module_dir; const char *ast_config_AST_SPOOL_DIR = cfg_paths.spool_dir; const char *ast_config_AST_MONITOR_DIR = cfg_paths.monitor_dir; const char *ast_config_AST_RECORDING_DIR = cfg_paths.recording_dir; const char *ast_config_AST_VAR_DIR = cfg_paths.var_dir; const char *ast_config_AST_DATA_DIR = cfg_paths.data_dir; const char *ast_config_AST_LOG_DIR = cfg_paths.log_dir; const char *ast_config_AST_AGI_DIR = cfg_paths.agi_dir; const char *ast_config_AST_KEY_DIR = cfg_paths.key_dir; const char *ast_config_AST_RUN_DIR = cfg_paths.run_dir; const char *ast_config_AST_SBIN_DIR = cfg_paths.sbin_dir; const char *ast_config_AST_DB = cfg_paths.db_path; const char *ast_config_AST_PID = cfg_paths.pid_path; const char *ast_config_AST_SOCKET = cfg_paths.socket_path; const char *ast_config_AST_RUN_USER = cfg_paths.run_user; const char *ast_config_AST_RUN_GROUP = cfg_paths.run_group; const char *ast_config_AST_SYSTEM_NAME = cfg_paths.system_name; const char *ast_config_AST_CTL_PERMISSIONS = cfg_paths.ctl_perms; const char *ast_config_AST_CTL_OWNER = cfg_paths.ctl_owner; const char *ast_config_AST_CTL_GROUP = cfg_paths.ctl_group; const char *ast_config_AST_CTL = cfg_paths.ctl_file; /*! \brief Set maximum open files */ static void set_ulimit(int value) { struct rlimit l = {0, 0}; if (value <= 0) { ast_log(LOG_WARNING, "Unable to change max files open to invalid value %i\n",value); return; } l.rlim_cur = value; l.rlim_max = value; if (setrlimit(RLIMIT_NOFILE, &l)) { ast_log(LOG_WARNING, "Unable to disable core size resource limit: %s\n",strerror(errno)); return; } ast_log(LOG_NOTICE, "Setting max files open to %d\n",value); return; } void set_asterisk_conf_path(const char *path) { ast_copy_string(cfg_paths.config_file, path, sizeof(cfg_paths.config_file)); } void set_socket_path(const char *path) { ast_copy_string(cfg_paths.socket_path, path, sizeof(cfg_paths.socket_path)); } void load_asterisk_conf(void) { struct ast_config *cfg; struct ast_variable *v; char hostname[MAXHOSTNAMELEN] = ""; struct ast_flags config_flags = { CONFIG_FLAG_NOREALTIME }; struct { unsigned int dbdir:1; unsigned int keydir:1; } found = { 0, 0 }; /* Default to false for security */ int live_dangerously = 0; int option_debug_new = 0; int option_trace_new = 0; int option_verbose_new = 0; /* init with buildtime config */ #ifdef REF_DEBUG /* The REF_DEBUG compiler flag is now only used to enable refdebug by default. * Support for debugging reference counts is always compiled in. */ ast_set2_flag(&ast_options, 1, AST_OPT_FLAG_REF_DEBUG); #endif ast_set_default_eid(&ast_eid_default); cfg = ast_config_load2(ast_config_AST_CONFIG_FILE, "" /* core, can't reload */, config_flags); /* If AST_OPT_FLAG_EXEC_INCLUDES was previously enabled with -X turn it off now. * Using #exec from other configs requires that it be enabled from asterisk.conf. */ ast_clear_flag(&ast_options, AST_OPT_FLAG_EXEC_INCLUDES); /* no asterisk.conf? no problem, use buildtime config! */ if (cfg == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEUNCHANGED || cfg == CONFIG_STATUS_FILEINVALID) { fprintf(stderr, "Unable to open specified master config file '%s', using built-in defaults\n", ast_config_AST_CONFIG_FILE); return; } for (v = ast_variable_browse(cfg, "files"); v; v = v->next) { if (!strcasecmp(v->name, "astctlpermissions")) { ast_copy_string(cfg_paths.ctl_perms, v->value, sizeof(cfg_paths.ctl_perms)); } else if (!strcasecmp(v->name, "astctlowner")) { ast_copy_string(cfg_paths.ctl_owner, v->value, sizeof(cfg_paths.ctl_owner)); } else if (!strcasecmp(v->name, "astctlgroup")) { ast_copy_string(cfg_paths.ctl_group, v->value, sizeof(cfg_paths.ctl_group)); } else if (!strcasecmp(v->name, "astctl")) { ast_copy_string(cfg_paths.ctl_file, v->value, sizeof(cfg_paths.ctl_file)); } } for (v = ast_variable_browse(cfg, "directories"); v; v = v->next) { if (!strcasecmp(v->name, "astcachedir")) { ast_copy_string(cfg_paths.cache_dir, v->value, sizeof(cfg_paths.cache_dir)); } else if (!strcasecmp(v->name, "astetcdir")) { ast_copy_string(cfg_paths.config_dir, v->value, sizeof(cfg_paths.config_dir)); } else if (!strcasecmp(v->name, "astspooldir")) { ast_copy_string(cfg_paths.spool_dir, v->value, sizeof(cfg_paths.spool_dir)); snprintf(cfg_paths.monitor_dir, sizeof(cfg_paths.monitor_dir), "%s/monitor", v->value); snprintf(cfg_paths.recording_dir, sizeof(cfg_paths.recording_dir), "%s/recording", v->value); } else if (!strcasecmp(v->name, "astvarlibdir")) { ast_copy_string(cfg_paths.var_dir, v->value, sizeof(cfg_paths.var_dir)); if (!found.dbdir) { snprintf(cfg_paths.db_path, sizeof(cfg_paths.db_path), "%s/astdb", v->value); } } else if (!strcasecmp(v->name, "astdbdir")) { snprintf(cfg_paths.db_path, sizeof(cfg_paths.db_path), "%s/astdb", v->value); found.dbdir = 1; } else if (!strcasecmp(v->name, "astdatadir")) { ast_copy_string(cfg_paths.data_dir, v->value, sizeof(cfg_paths.data_dir)); if (!found.keydir) { snprintf(cfg_paths.key_dir, sizeof(cfg_paths.key_dir), "%s/keys", v->value); } } else if (!strcasecmp(v->name, "astkeydir")) { snprintf(cfg_paths.key_dir, sizeof(cfg_paths.key_dir), "%s/keys", v->value); found.keydir = 1; } else if (!strcasecmp(v->name, "astlogdir")) { ast_copy_string(cfg_paths.log_dir, v->value, sizeof(cfg_paths.log_dir)); } else if (!strcasecmp(v->name, "astagidir")) { ast_copy_string(cfg_paths.agi_dir, v->value, sizeof(cfg_paths.agi_dir)); } else if (!strcasecmp(v->name, "astrundir")) { snprintf(cfg_paths.pid_path, sizeof(cfg_paths.pid_path), "%s/%s", v->value, "asterisk.pid"); ast_copy_string(cfg_paths.run_dir, v->value, sizeof(cfg_paths.run_dir)); } else if (!strcasecmp(v->name, "astmoddir")) { ast_copy_string(cfg_paths.module_dir, v->value, sizeof(cfg_paths.module_dir)); } else if (!strcasecmp(v->name, "astsbindir")) { ast_copy_string(cfg_paths.sbin_dir, v->value, sizeof(cfg_paths.sbin_dir)); } } /* Combine astrundir and astctl settings. */ snprintf(cfg_paths.socket_path, sizeof(cfg_paths.socket_path), "%s/%s", ast_config_AST_RUN_DIR, ast_config_AST_CTL); for (v = ast_variable_browse(cfg, "options"); v; v = v->next) { /* verbose level (-v at startup) */ if (!strcasecmp(v->name, "verbose")) { option_verbose_new = atoi(v->value); /* whether or not to force timestamping in CLI verbose output. (-T at startup) */ } else if (!strcasecmp(v->name, "timestamp")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TIMESTAMP); /* whether or not to support #exec in config files */ } else if (!strcasecmp(v->name, "execincludes")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_EXEC_INCLUDES); /* debug level (-d at startup) */ } else if (!strcasecmp(v->name, "debug")) { option_debug_new = 0; if (sscanf(v->value, "%30d", &option_debug_new) != 1) { option_debug_new = ast_true(v->value) ? 1 : 0; } } else if (!strcasecmp(v->name, "trace")) { option_trace_new = 0; if (sscanf(v->value, "%30d", &option_trace_new) != 1) { option_trace_new = ast_true(v->value) ? 1 : 0; } } else if (!strcasecmp(v->name, "refdebug")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_REF_DEBUG); #if HAVE_WORKING_FORK /* Disable forking (-f at startup) */ } else if (!strcasecmp(v->name, "nofork")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_NO_FORK); /* Always fork, even if verbose or debug are enabled (-F at startup) */ } else if (!strcasecmp(v->name, "alwaysfork")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_ALWAYS_FORK); #endif /* Run quietly (-q at startup ) */ } else if (!strcasecmp(v->name, "quiet")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_QUIET); /* Run as console (-c at startup, implies nofork) */ } else if (!strcasecmp(v->name, "console")) { if (!ast_opt_remote) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_NO_FORK | AST_OPT_FLAG_CONSOLE); } /* Run with high priority if the O/S permits (-p at startup) */ } else if (!strcasecmp(v->name, "highpriority")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_HIGH_PRIORITY); /* Initialize RSA auth keys (IAX2) (-i at startup) */ } else if (!strcasecmp(v->name, "initcrypto")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_INIT_KEYS); /* Disable ANSI colors for console (-c at startup) */ } else if (!strcasecmp(v->name, "nocolor")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_NO_COLOR); /* Disable some usage warnings for picky people :p */ } else if (!strcasecmp(v->name, "dontwarn")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_DONT_WARN); /* Dump core in case of crash (-g) */ } else if (!strcasecmp(v->name, "dumpcore")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_DUMP_CORE); /* Cache recorded sound files to another directory during recording */ } else if (!strcasecmp(v->name, "cache_record_files")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_CACHE_RECORD_FILES); #if !defined(LOW_MEMORY) /* Cache media frames for performance */ } else if (!strcasecmp(v->name, "cache_media_frames")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_CACHE_MEDIA_FRAMES); #endif /* Specify cache directory */ } else if (!strcasecmp(v->name, "record_cache_dir")) { ast_copy_string(record_cache_dir, v->value, AST_CACHE_DIR_LEN); /* Build transcode paths via SLINEAR, instead of directly */ } else if (!strcasecmp(v->name, "transcode_via_sln")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSCODE_VIA_SLIN); /* Transmit SLINEAR silence while a channel is being recorded or DTMF is being generated on a channel */ } else if (!strcasecmp(v->name, "transmit_silence_during_record") || !strcasecmp(v->name, "transmit_silence")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSMIT_SILENCE); } else if (!strcasecmp(v->name, "mindtmfduration")) { if (sscanf(v->value, "%30u", &option_dtmfminduration) != 1) { option_dtmfminduration = AST_MIN_DTMF_DURATION; } } else if (!strcasecmp(v->name, "rtp_use_dynamic")) { ast_option_rtpusedynamic = ast_true(v->value); /* http://www.iana.org/assignments/rtp-parameters * RTP dynamic payload types start at 96 normally; extend down to 0 */ } else if (!strcasecmp(v->name, "rtp_pt_dynamic")) { ast_parse_arg(v->value, PARSE_UINT32|PARSE_IN_RANGE, &ast_option_rtpptdynamic, 0, AST_RTP_PT_FIRST_DYNAMIC); } else if (!strcasecmp(v->name, "maxcalls")) { if ((sscanf(v->value, "%30d", &ast_option_maxcalls) != 1) || (ast_option_maxcalls < 0)) { ast_option_maxcalls = 0; } } else if (!strcasecmp(v->name, "maxload")) { double test[1]; if (getloadavg(test, 1) == -1) { ast_log(LOG_ERROR, "Cannot obtain load average on this system. 'maxload' option disabled.\n"); ast_option_maxload = 0.0; } else if ((sscanf(v->value, "%30lf", &ast_option_maxload) != 1) || (ast_option_maxload < 0.0)) { ast_option_maxload = 0.0; } /* Set the maximum amount of open files */ } else if (!strcasecmp(v->name, "maxfiles")) { ast_option_maxfiles = atoi(v->value); if (!ast_opt_remote) { set_ulimit(ast_option_maxfiles); } /* What user to run as */ } else if (!strcasecmp(v->name, "runuser")) { ast_copy_string(cfg_paths.run_user, v->value, sizeof(cfg_paths.run_user)); /* What group to run as */ } else if (!strcasecmp(v->name, "rungroup")) { ast_copy_string(cfg_paths.run_group, v->value, sizeof(cfg_paths.run_group)); } else if (!strcasecmp(v->name, "systemname")) { ast_copy_string(cfg_paths.system_name, v->value, sizeof(cfg_paths.system_name)); } else if (!strcasecmp(v->name, "autosystemname")) { if (ast_true(v->value)) { if (!gethostname(hostname, sizeof(hostname) - 1)) { ast_copy_string(cfg_paths.system_name, hostname, sizeof(cfg_paths.system_name)); } else { if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME)){ ast_copy_string(cfg_paths.system_name, "localhost", sizeof(cfg_paths.system_name)); } ast_log(LOG_ERROR, "Cannot obtain hostname for this system. Using '%s' instead.\n", ast_config_AST_SYSTEM_NAME); } } } else if (!strcasecmp(v->name, "languageprefix")) { ast_language_is_prefix = ast_true(v->value); } else if (!strcasecmp(v->name, "defaultlanguage")) { ast_copy_string(ast_defaultlanguage, v->value, MAX_LANGUAGE); } else if (!strcasecmp(v->name, "lockmode")) { if (!strcasecmp(v->value, "lockfile")) { ast_set_lock_type(AST_LOCK_TYPE_LOCKFILE); } else if (!strcasecmp(v->value, "flock")) { ast_set_lock_type(AST_LOCK_TYPE_FLOCK); } else { ast_log(LOG_WARNING, "'%s' is not a valid setting for the lockmode option, " "defaulting to 'lockfile'\n", v->value); ast_set_lock_type(AST_LOCK_TYPE_LOCKFILE); } #if defined(HAVE_SYSINFO) } else if (!strcasecmp(v->name, "minmemfree")) { /* specify the minimum amount of free memory to retain. Asterisk should stop accepting new calls * if the amount of free memory falls below this watermark */ if ((sscanf(v->value, "%30ld", &option_minmemfree) != 1) || (option_minmemfree < 0)) { option_minmemfree = 0; } #endif } else if (!strcasecmp(v->name, "entityid")) { struct ast_eid tmp_eid; if (!ast_str_to_eid(&tmp_eid, v->value)) { ast_eid_default = tmp_eid; } else { ast_log(LOG_WARNING, "Invalid Entity ID '%s' provided\n", v->value); } } else if (!strcasecmp(v->name, "lightbackground")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_LIGHT_BACKGROUND); } else if (!strcasecmp(v->name, "forceblackbackground")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_FORCE_BLACK_BACKGROUND); } else if (!strcasecmp(v->name, "hideconnect")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_HIDE_CONSOLE_CONNECT); } else if (!strcasecmp(v->name, "lockconfdir")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_LOCK_CONFIG_DIR); } else if (!strcasecmp(v->name, "stdexten")) { /* Choose how to invoke the extensions.conf stdexten */ if (!strcasecmp(v->value, "gosub")) { ast_clear_flag(&ast_options, AST_OPT_FLAG_STDEXTEN_MACRO); } else if (!strcasecmp(v->value, "macro")) { ast_set_flag(&ast_options, AST_OPT_FLAG_STDEXTEN_MACRO); } else { ast_log(LOG_WARNING, "'%s' is not a valid setting for the stdexten option, defaulting to 'gosub'\n", v->value); ast_clear_flag(&ast_options, AST_OPT_FLAG_STDEXTEN_MACRO); } } else if (!strcasecmp(v->name, "live_dangerously")) { live_dangerously = ast_true(v->value); } else if (!strcasecmp(v->name, "hide_messaging_ami_events")) { ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_HIDE_MESSAGING_AMI_EVENTS); } } if (!ast_opt_remote) { pbx_live_dangerously(live_dangerously); astman_live_dangerously(live_dangerously); } option_debug += option_debug_new; option_trace += option_trace_new; option_verbose += option_verbose_new; ast_config_destroy(cfg); }