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config.c
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config.c
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/*
* Odyssey.
*
* Scalable PostgreSQL connection pooler.
*/
#include <kiwi.h>
#include <machinarium.h>
#include <odyssey.h>
void od_config_init(od_config_t *config)
{
config->daemonize = 0;
config->priority = 0;
config->log_debug = 0;
config->log_to_stdout = 1;
config->log_config = 0;
config->log_session = 1;
config->log_query = 0;
config->log_file = NULL;
config->log_stats = 1;
config->log_general_stats_prom = 0;
config->log_route_stats_prom = 0;
config->stats_interval = 3;
config->log_format = NULL;
config->pid_file = NULL;
config->unix_socket_dir = NULL;
config->locks_dir = NULL;
config->enable_online_restart_feature = 0;
config->bindwith_reuseport = 0;
config->graceful_die_on_errors = 0;
config->unix_socket_mode = NULL;
config->log_syslog = 0;
config->log_syslog_ident = NULL;
config->log_syslog_facility = NULL;
config->readahead = 8192;
config->nodelay = 1;
config->keepalive = 15;
config->keepalive_keep_interval = 5;
config->keepalive_probes = 3;
config->keepalive_usr_timeout = 0; // use sys default
config->workers = 1;
config->resolvers = 1;
config->client_max_set = 0;
config->client_max = 0;
config->client_max_routing = 0;
config->server_login_retry = 1;
config->cache_coroutine = 0;
config->cache_msg_gc_size = 0;
config->coroutine_stack_size = 4;
config->hba_file = NULL;
od_list_init(&config->listen);
}
void od_config_reload(od_config_t *current_config, od_config_t *new_config)
{
current_config->client_max_set = new_config->client_max_set;
current_config->client_max = new_config->client_max;
current_config->client_max_routing = new_config->client_max_routing;
current_config->server_login_retry = new_config->server_login_retry;
}
static void od_config_listen_free(od_config_listen_t *);
void od_config_free(od_config_t *config)
{
od_list_t *i, *n;
od_list_foreach_safe(&config->listen, i, n)
{
od_config_listen_t *listen;
listen = od_container_of(i, od_config_listen_t, link);
od_config_listen_free(listen);
}
if (config->log_file)
free(config->log_file);
if (config->log_format)
free(config->log_format);
if (config->pid_file)
free(config->pid_file);
if (config->unix_socket_dir)
free(config->unix_socket_dir);
if (config->log_syslog_ident)
free(config->log_syslog_ident);
if (config->log_syslog_facility)
free(config->log_syslog_facility);
if (config->locks_dir) {
free(config->locks_dir);
if (config->hba_file)
free(config->hba_file);
}
}
od_config_listen_t *od_config_listen_add(od_config_t *config)
{
od_config_listen_t *listen;
listen = (od_config_listen_t *)malloc(sizeof(*listen));
if (listen == NULL) {
return NULL;
}
memset(listen, 0, sizeof(*listen));
listen->tls_opts = od_tls_opts_alloc();
if (listen->tls_opts == NULL) {
return NULL;
}
listen->port = 6432;
listen->backlog = 128;
listen->client_login_timeout = 15000;
od_list_init(&listen->link);
od_list_append(&config->listen, &listen->link);
return listen;
}
static void od_config_listen_free(od_config_listen_t *config)
{
if (config->host)
free(config->host);
if (config->tls_opts) {
od_tls_opts_free(config->tls_opts);
}
free(config);
}
int od_config_validate(od_config_t *config, od_logger_t *logger)
{
/* workers */
if (config->workers <= 0) {
od_error(logger, "config", NULL, NULL, "bad workers number");
return -1;
}
/* resolvers */
if (config->resolvers <= 0) {
od_error(logger, "config", NULL, NULL, "bad resolvers number");
return -1;
}
/* coroutine_stack_size */
if (config->coroutine_stack_size < 4) {
od_error(logger, "config", NULL, NULL,
"bad coroutine_stack_size number");
return -1;
}
/* log format */
if (config->log_format == NULL) {
od_error(logger, "config", NULL, NULL, "log is not defined");
return -1;
}
/* unix_socket_mode */
if (config->unix_socket_dir) {
if (config->unix_socket_mode == NULL) {
od_error(logger, "config", NULL, NULL,
"unix_socket_mode is not set");
return -1;
}
}
/* listen */
if (od_list_empty(&config->listen)) {
od_error(logger, "config", NULL, NULL,
"no listen servers defined");
return -1;
}
od_list_t *i;
od_list_foreach(&config->listen, i)
{
od_config_listen_t *listen;
listen = od_container_of(i, od_config_listen_t, link);
if (listen->host == NULL) {
if (config->unix_socket_dir == NULL) {
od_error(
logger, "config", NULL, NULL,
"listen host is not set and no unix_socket_dir is specified");
return -1;
}
}
/* tls options */
if (listen->tls_opts->tls) {
if (strcmp(listen->tls_opts->tls, "disable") == 0) {
listen->tls_opts->tls_mode =
OD_CONFIG_TLS_DISABLE;
} else if (strcmp(listen->tls_opts->tls, "allow") ==
0) {
listen->tls_opts->tls_mode =
OD_CONFIG_TLS_ALLOW;
} else if (strcmp(listen->tls_opts->tls, "require") ==
0) {
listen->tls_opts->tls_mode =
OD_CONFIG_TLS_REQUIRE;
} else if (strcmp(listen->tls_opts->tls, "verify_ca") ==
0) {
listen->tls_opts->tls_mode =
OD_CONFIG_TLS_VERIFY_CA;
} else if (strcmp(listen->tls_opts->tls,
"verify_full") == 0) {
listen->tls_opts->tls_mode =
OD_CONFIG_TLS_VERIFY_FULL;
} else {
od_error(logger, "config", NULL, NULL,
"unknown tls_opts->tls mode");
return -1;
}
}
}
if (config->enable_online_restart_feature &&
!config->bindwith_reuseport) {
od_dbg_printf_on_dvl_lvl(1, "validation error detected %s\n",
"");
od_error(
logger, "config", NULL, NULL,
"online restart feature works only with SO_REUSEPORT. Disable "
"online restart or/and enable bindwith_reuseport");
return NOT_OK_RESPONSE;
}
return OK_RESPONSE;
}
static inline char *od_config_yes_no(int value)
{
return value ? "yes" : "no";
}
void od_config_print(od_config_t *config, od_logger_t *logger)
{
od_log(logger, "config", NULL, NULL, "daemonize %s",
od_config_yes_no(config->daemonize));
od_log(logger, "config", NULL, NULL, "priority %d",
config->priority);
if (config->pid_file)
od_log(logger, "config", NULL, NULL,
"pid_file %s", config->pid_file);
if (config->unix_socket_dir) {
od_log(logger, "config", NULL, NULL,
"unix_socket_dir %s", config->unix_socket_dir);
od_log(logger, "config", NULL, NULL,
"unix_socket_mode %s", config->unix_socket_mode);
}
if (config->log_format)
od_log(logger, "config", NULL, NULL,
"log_format %s", config->log_format);
if (config->log_file)
od_log(logger, "config", NULL, NULL,
"log_file %s", config->log_file);
od_log(logger, "config", NULL, NULL, "log_to_stdout %s",
od_config_yes_no(config->log_to_stdout));
od_log(logger, "config", NULL, NULL, "log_syslog %s",
od_config_yes_no(config->log_syslog));
if (config->log_syslog_ident)
od_log(logger, "config", NULL, NULL,
"log_syslog_ident %s", config->log_syslog_ident);
if (config->log_syslog_facility)
od_log(logger, "config", NULL, NULL,
"log_syslog_facility %s",
config->log_syslog_facility);
od_log(logger, "config", NULL, NULL, "log_debug %s",
od_config_yes_no(config->log_debug));
od_log(logger, "config", NULL, NULL, "log_config %s",
od_config_yes_no(config->log_config));
od_log(logger, "config", NULL, NULL, "log_session %s",
od_config_yes_no(config->log_session));
od_log(logger, "config", NULL, NULL, "log_query %s",
od_config_yes_no(config->log_query));
od_log(logger, "config", NULL, NULL, "log_stats %s",
od_config_yes_no(config->log_stats));
od_log(logger, "config", NULL, NULL, "stats_interval %d",
config->stats_interval);
od_log(logger, "config", NULL, NULL, "readahead %d",
config->readahead);
od_log(logger, "config", NULL, NULL, "nodelay %s",
od_config_yes_no(config->nodelay));
od_log(logger, "config", NULL, NULL, "keepalive %d",
config->keepalive);
if (config->client_max_set)
od_log(logger, "config", NULL, NULL,
"client_max %d", config->client_max);
od_log(logger, "config", NULL, NULL, "client_max_routing %d",
config->client_max_routing);
od_log(logger, "config", NULL, NULL, "server_login_retry %d",
config->server_login_retry);
od_log(logger, "config", NULL, NULL, "cache_msg_gc_size %d",
config->cache_msg_gc_size);
od_log(logger, "config", NULL, NULL, "cache_coroutine %d",
config->cache_coroutine);
od_log(logger, "config", NULL, NULL, "coroutine_stack_size %d",
config->coroutine_stack_size);
od_log(logger, "config", NULL, NULL, "workers %d",
config->workers);
od_log(logger, "config", NULL, NULL, "resolvers %d",
config->resolvers);
if (config->enable_online_restart_feature) {
od_log(logger, "config", NULL, NULL,
"online restart enabled: OK");
}
if (config->graceful_die_on_errors) {
od_log(logger, "config", NULL, NULL,
"graceful die enabled: OK");
}
if (config->bindwith_reuseport) {
od_log(logger, "config", NULL, NULL,
"socket bind with: SO_REUSEPORT");
}
#ifdef USE_SCRAM
od_log(logger, "config", NULL, NULL, "SCRAM auth metod: OK");
#endif
od_log(logger, "config", NULL, NULL, "");
od_list_t *i;
od_list_foreach(&config->listen, i)
{
od_config_listen_t *listen;
listen = od_container_of(i, od_config_listen_t, link);
od_log(logger, "config", NULL, NULL, "listen");
od_log(logger, "config", NULL, NULL, " host %s",
listen->host ? listen->host : "<unix socket>");
od_log(logger, "config", NULL, NULL, " port %d",
listen->port);
od_log(logger, "config", NULL, NULL, " backlog %d",
listen->backlog);
if (listen->tls_opts->tls)
od_log(logger, "config", NULL, NULL,
" tls %s", listen->tls_opts->tls);
if (listen->tls_opts->tls_ca_file)
od_log(logger, "config", NULL, NULL,
" tls_ca_file %s",
listen->tls_opts->tls_ca_file);
if (listen->tls_opts->tls_key_file)
od_log(logger, "config", NULL, NULL,
" tls_key_file %s",
listen->tls_opts->tls_key_file);
if (listen->tls_opts->tls_cert_file)
od_log(logger, "config", NULL, NULL,
" tls_cert_file %s",
listen->tls_opts->tls_cert_file);
if (listen->tls_opts->tls_protocols)
od_log(logger, "config", NULL, NULL,
" tls_protocols %s",
listen->tls_opts->tls_protocols);
od_log(logger, "config", NULL, NULL, "");
}
}