open5gs/lib/app/ogs-init.c

243 lines
7.5 KiB
C

/*
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "ogs-app.h"
int __ogs_app_domain;
int ogs_app_initialize(
const char *version, const char *default_config,
const char *const argv[])
{
int rv, opt;
ogs_getopt_t options;
struct {
char *config_file;
char *log_file;
char *log_level;
char *domain_mask;
} optarg;
ogs_core_initialize();
ogs_app_setup_log();
ogs_app_context_init();
ogs_app()->version = version;
/**************************************************************************
* Stage 1 : Command Line Options
*/
memset(&optarg, 0, sizeof(optarg));
ogs_getopt_init(&options, (char**)argv);
while ((opt = ogs_getopt(&options, "c:l:e:m:")) != -1) {
switch (opt) {
case 'c':
optarg.config_file = options.optarg;
break;
case 'l':
optarg.log_file = options.optarg;
break;
case 'e':
optarg.log_level = options.optarg;
break;
case 'm':
optarg.domain_mask = options.optarg;
break;
case '?':
default:
ogs_assert_if_reached();
return OGS_ERROR;
}
}
/**************************************************************************
* Stage 2 : Load Configuration File
*/
if (optarg.config_file)
ogs_app()->file = optarg.config_file;
else
ogs_app()->file = default_config;
rv = ogs_app_config_read();
if (rv != OGS_OK) return rv;
rv = ogs_app_context_parse_config();
if (rv != OGS_OK) return rv;
/**************************************************************************
* Stage 3 : Initialize Default Memory Pool
*/
ogs_pkbuf_default_create(&ogs_app()->pool.defconfig);
/**************************************************************************
* Stage 4 : Setup LOG Module
*/
if (optarg.log_file)
ogs_app()->logger.file = optarg.log_file;
if (ogs_app()->logger.file) {
if (ogs_log_add_file(ogs_app()->logger.file) == NULL) {
ogs_fatal("cannot open log file : %s",
ogs_app()->logger.file);
return OGS_ERROR;
}
}
if (optarg.domain_mask)
ogs_app()->logger.domain = optarg.domain_mask;
if (optarg.log_level)
ogs_app()->logger.level = optarg.log_level;
rv = ogs_log_config_domain(
ogs_app()->logger.domain, ogs_app()->logger.level);
if (rv != OGS_OK) return rv;
/**************************************************************************
* Stage 5 : Setup Database Module
*/
if (ogs_env_get("DB_URI"))
ogs_app()->db_uri = ogs_env_get("DB_URI");
/**************************************************************************
* Stage 6 : Print Banner
*/
if (ogs_app()->version) {
ogs_log_print(OGS_LOG_INFO,
"Open5GS daemon %s\n\n", ogs_app()->version);
ogs_info("Configuration: '%s'", ogs_app()->file);
if (ogs_app()->logger.file) {
ogs_info("File Logging: '%s'", ogs_app()->logger.file);
if (ogs_app()->logger.level)
ogs_info("LOG-LEVEL: '%s'", ogs_app()->logger.level);
if (ogs_app()->logger.domain)
ogs_info("LOG-DOMAIN: '%s'", ogs_app()->logger.domain);
}
}
/**************************************************************************
* Stage 7 : Queue, Timer and Poll
*/
ogs_app()->queue = ogs_queue_create(ogs_app()->pool.event);
ogs_assert(ogs_app()->queue);
ogs_app()->timer_mgr = ogs_timer_mgr_create(ogs_app()->pool.timer);
ogs_assert(ogs_app()->timer_mgr);
ogs_app()->pollset = ogs_pollset_create(ogs_app()->pool.socket);
ogs_assert(ogs_app()->pollset);
return rv;
}
void ogs_app_terminate(void)
{
ogs_app_context_final();
ogs_pkbuf_default_destroy();
ogs_core_terminate();
}
int ogs_app_config_read(void)
{
FILE *file;
yaml_parser_t parser;
yaml_document_t *document = NULL;
ogs_assert(ogs_app()->file);
file = fopen(ogs_app()->file, "rb");
if (!file) {
ogs_fatal("cannot open file `%s`", ogs_app()->file);
return OGS_ERROR;
}
ogs_assert(yaml_parser_initialize(&parser));
yaml_parser_set_input_file(&parser, file);
document = calloc(1, sizeof(yaml_document_t));
if (!yaml_parser_load(&parser, document)) {
ogs_fatal("Failed to parse configuration file '%s'", ogs_app()->file);
switch (parser.error) {
case YAML_MEMORY_ERROR:
ogs_error("Memory error: Not enough memory for parsing");
break;
case YAML_READER_ERROR:
if (parser.problem_value != -1)
ogs_error("Reader error - %s: #%X at %zd", parser.problem,
parser.problem_value, parser.problem_offset);
else
ogs_error("Reader error - %s at %zd", parser.problem,
parser.problem_offset);
break;
case YAML_SCANNER_ERROR:
if (parser.context)
ogs_error("Scanner error - %s at line %zu, column %zu"
"%s at line %zu, column %zu", parser.context,
parser.context_mark.line+1,
parser.context_mark.column+1,
parser.problem, parser.problem_mark.line+1,
parser.problem_mark.column+1);
else
ogs_error("Scanner error - %s at line %zu, column %zu",
parser.problem, parser.problem_mark.line+1,
parser.problem_mark.column+1);
break;
case YAML_PARSER_ERROR:
if (parser.context)
ogs_error("Parser error - %s at line %zu, column %zu"
"%s at line %zu, column %zu", parser.context,
parser.context_mark.line+1,
parser.context_mark.column+1,
parser.problem, parser.problem_mark.line+1,
parser.problem_mark.column+1);
else
ogs_error("Parser error - %s at line %zu, column %zu",
parser.problem, parser.problem_mark.line+1,
parser.problem_mark.column+1);
break;
default:
/* Couldn't happen. */
ogs_assert_if_reached();
break;
}
free(document);
yaml_parser_delete(&parser);
ogs_assert(!fclose(file));
return OGS_ERROR;
}
ogs_app()->document = document;
yaml_parser_delete(&parser);
ogs_assert(!fclose(file));
return OGS_OK;
}
void ogs_app_setup_log(void)
{
ogs_log_install_domain(&__ogs_app_domain, "app", ogs_core()->log.level);
}