/**
* This is the "real" main which is called both on Windows and UNIX platforms.
* For the Windows service case, this will also handle the notifications and set
* up the logging support appropriately.
*/
int main_cmdline(int argc, char **argv) {
chassis *srv = NULL;
#ifdef HAVE_SIGACTION
static struct sigaction sigsegv_sa;
#endif
/* read the command-line options */
GOptionContext *option_ctx = NULL;
GOptionEntry *main_entries = NULL;
chassis_frontend_t *frontend = NULL;
chassis_options_t *opts = NULL;
GError *gerr = NULL;
chassis_log_t *log = NULL;
/* a little helper macro to set the src-location that we stepped out at to exit */
#define GOTO_EXIT(status) \
exit_code = status; \
exit_location = G_STRLOC; \
goto exit_nicely;
int exit_code = EXIT_SUCCESS;
const gchar *exit_location = G_STRLOC;
if (chassis_frontend_init_glib()) { /* init the thread, module, ... system */
GOTO_EXIT(EXIT_FAILURE);
}
log = chassis_log_new();
chassis_log_set_default(log, NULL, G_LOG_LEVEL_CRITICAL); /* default to stderr for everything that is critical */
g_log_set_default_handler(chassis_log_func, log);
#ifdef _WIN32
if (chassis_frontend_init_win32()) { /* setup winsock */
GOTO_EXIT(EXIT_FAILURE);
}
#endif
/* may fail on library mismatch */
if (NULL == (srv = chassis_new())) {
GOTO_EXIT(EXIT_FAILURE);
}
srv->log = log; /* we need the log structure for the log-rotation */
frontend = chassis_frontend_new();
option_ctx = g_option_context_new("- MySQL Proxy");
/**
* parse once to get the basic options like --defaults-file and --version
*
* leave the unknown options in the list
*/
if (chassis_frontend_init_base_options(option_ctx,
&argc, &argv,
&(frontend->print_version),
&(frontend->default_file),
&gerr)) {
g_critical("%s: %s",
G_STRLOC,
gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->default_file) {
if (!(frontend->keyfile = chassis_frontend_open_config_file(frontend->default_file, &gerr))) {
g_critical("%s: loading config from '%s' failed: %s",
G_STRLOC,
frontend->default_file,
gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
}
/* print the main version number here, but don't exit
* we check for print_version again, after loading the plugins (if any)
* and print their version numbers, too. then we exit cleanly.
*/
if (frontend->print_version) {
#ifndef CHASSIS_BUILD_TAG
#define CHASSIS_BUILD_TAG PACKAGE_STRING
#endif
g_print("%s" CHASSIS_NEWLINE, CHASSIS_BUILD_TAG);
chassis_frontend_print_version();
}
/* add the other options which can also appear in the configfile */
opts = chassis_options_new();
chassis_frontend_set_chassis_options(frontend, opts);
main_entries = chassis_options_to_g_option_entries(opts);
g_option_context_add_main_entries(option_ctx, main_entries, NULL);
/**
* parse once to get the basic options
*
* leave the unknown options in the list
*/
if (FALSE == g_option_context_parse(option_ctx, &argc, &argv, &gerr)) {
g_critical("%s", gerr->message);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->keyfile) {
if (chassis_keyfile_to_options(frontend->keyfile, "mysql-proxy", main_entries)) {
GOTO_EXIT(EXIT_FAILURE);
}
}
if (chassis_frontend_init_basedir(argv[0], &(frontend->base_dir))) {
GOTO_EXIT(EXIT_FAILURE);
}
/* basic setup is done, base-dir is known, ... */
frontend->lua_subdirs = g_new(char *, 2);
frontend->lua_subdirs[0] = g_strdup("mysql-proxy");
frontend->lua_subdirs[1] = NULL;
if (chassis_frontend_init_lua_path(frontend->lua_path, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
if (chassis_frontend_init_lua_cpath(frontend->lua_cpath, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
/* assign the mysqld part to the */
network_mysqld_init(srv); /* starts the also the lua-scope, LUA_PATH and LUA_CPATH have to be set before this being called */
#ifdef HAVE_SIGACTION
/* register the sigsegv interceptor */
memset(&sigsegv_sa, 0, sizeof(sigsegv_sa));
sigsegv_sa.sa_handler = sigsegv_handler;
sigemptyset(&sigsegv_sa.sa_mask);
if (frontend->invoke_dbg_on_crash && !(RUNNING_ON_VALGRIND)) {
sigaction(SIGSEGV, &sigsegv_sa, NULL);
}
#endif
/*
* some plugins cannot see the chassis struct from the point
* where they open files, hence we must make it available
*/
srv->base_dir = g_strdup(frontend->base_dir);
chassis_frontend_init_plugin_dir(&frontend->plugin_dir, srv->base_dir);
/*
* these are used before we gathered all the options
* from the plugins, thus we need to fix them up before
* dealing with all the rest.
*/
chassis_resolve_path(srv->base_dir, &frontend->log_config_filename);
chassis_resolve_path(srv->base_dir, &frontend->log_filename);
chassis_resolve_path(srv->base_dir, &frontend->pid_file);
chassis_resolve_path(srv->base_dir, &frontend->plugin_dir);
/*
* start the logging
*
* If we have a log config file, it takes precendence before the simple other log-* options.
*/
if (frontend->log_filename && frontend->use_syslog) {
g_critical("%s: log-file and log-use-syslog were given, but only one is allowed",
G_STRLOC);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->log_config_filename) {
if (FALSE == chassis_log_load_config(log, frontend->log_config_filename, &gerr)) {
g_critical("%s: reading log-config from %s failed: %s",
G_STRLOC,
frontend->log_config_filename,
gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
/* the system should now be set up, let's try to log something */
g_message("this should go to the root logger on level message");
} else {
/* set a default config */
chassis_log_backend_t *backend;
chassis_log_domain_t *domain;
GLogLevelFlags log_lvl = G_LOG_LEVEL_CRITICAL;
/* handle log-level after the config-file is read, just in case it is specified in the file */
if (frontend->log_level) {
log_lvl = chassis_log_level_string_to_level(frontend->log_level);
if (0 == log_lvl) {
g_critical("--log-level=... failed, level '%s' is unknown ",
frontend->log_level);
GOTO_EXIT(EXIT_FAILURE);
}
}
if (frontend->log_filename) {
backend = chassis_log_backend_file_new(frontend->log_filename);
} else if (frontend->use_syslog) {
backend = chassis_log_backend_syslog_new();
#ifdef _WIN32
} else if (chassis_win32_is_service()) {
backend = chassis_log_backend_eventlog_new();
#endif
} else {
backend = chassis_log_backend_stderr_new();
}
chassis_log_register_backend(log, backend);
domain = chassis_log_domain_new(CHASSIS_LOG_DEFAULT_DOMAIN, log_lvl, backend);
chassis_log_register_domain(log, domain);
}
/*
* the MySQL Proxy should load 'admin' and 'proxy' plugins
*/
if (!frontend->plugin_names) {
frontend->plugin_names = g_new(char *, 3);
frontend->plugin_names[0] = g_strdup("admin");
frontend->plugin_names[1] = g_strdup("proxy");
frontend->plugin_names[2] = NULL;
}
/**
* This is the "real" main which is called both on Windows and UNIX platforms.
* For the Windows service case, this will also handle the notifications and set
* up the logging support appropriately.
*/
int main_cmdline(int argc, char **argv) {
chassis *srv = NULL;
#ifdef HAVE_SIGACTION
static struct sigaction sigsegv_sa;
#endif
/* read the command-line options */
GOptionContext *option_ctx = NULL;
GOptionEntry *main_entries = NULL;
chassis_frontend_t *frontend = NULL;
chassis_options_t *opts = NULL;
GError *gerr = NULL;
chassis_log *log = NULL;
/* a little helper macro to set the src-location that we stepped out at to exit */
#define GOTO_EXIT(status) \
exit_code = status; \
exit_location = G_STRLOC; \
goto exit_nicely;
int exit_code = EXIT_SUCCESS;
const gchar *exit_location = G_STRLOC;
if (chassis_frontend_init_glib()) { /* init the thread, module, ... system */
GOTO_EXIT(EXIT_FAILURE);
}
/* start the logging ... to stderr */
log = chassis_log_new();
log->min_lvl = G_LOG_LEVEL_MESSAGE; /* display messages while parsing or loading plugins */
g_log_set_default_handler(chassis_log_func, log);
#ifdef _WIN32
if (chassis_win32_is_service() && chassis_log_set_event_log(log, g_get_prgname())) {
GOTO_EXIT(EXIT_FAILURE);
}
if (chassis_frontend_init_win32()) { /* setup winsock */
GOTO_EXIT(EXIT_FAILURE);
}
#endif
/* may fail on library mismatch */
if (NULL == (srv = chassis_new())) {
GOTO_EXIT(EXIT_FAILURE);
}
srv->log = log; /* we need the log structure for the log-rotation */
frontend = chassis_frontend_new();
option_ctx = g_option_context_new("- MySQL Proxy");
/**
* parse once to get the basic options like --defaults-file and --version
*
* leave the unknown options in the list
*/
if (chassis_frontend_init_base_options(option_ctx,
&argc, &argv,
&(frontend->print_version),
&(frontend->default_file),
&gerr)) {
g_critical("%s: %s",
G_STRLOC,
gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
#ifndef _WIN32
signal(SIGPIPE, SIG_IGN);
srv->daemon_mode = frontend->daemon_mode; /* add by vinchen/CFR */
srv->auto_restart = frontend->auto_restart;
if (frontend->daemon_mode) {
chassis_unix_daemonize();
}
if (frontend->auto_restart) {
int child_exit_status = EXIT_SUCCESS; /* forward the exit-status of the child */
int ret = chassis_unix_proc_keepalive(&child_exit_status);
if (ret > 0) {
/* the agent stopped */
exit_code = child_exit_status;
goto exit_nicely;
} else if (ret < 0) {
GOTO_EXIT(EXIT_FAILURE);
} else {
/* we are the child, go on */
}
}
#endif
if (frontend->default_file) {
srv->default_file = g_strdup(frontend->default_file); //add by vinchen/CFR
if (!(frontend->keyfile = chassis_frontend_open_config_file(frontend->default_file, &gerr))) {
g_critical("%s: loading config from '%s' failed: %s",
G_STRLOC,
frontend->default_file,
gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
}
/* print the main version number here, but don't exit
* we check for print_version again, after loading the plugins (if any)
* and print their version numbers, too. then we exit cleanly.
*/
if (frontend->print_version) {
#ifndef CHASSIS_BUILD_TAG
#define CHASSIS_BUILD_TAG PACKAGE_STRING
#endif
g_print("%s" CHASSIS_NEWLINE, CHASSIS_BUILD_TAG);
chassis_frontend_print_version();
}
/* add the other options which can also appear in the configfile */
opts = chassis_options_new();
chassis_frontend_set_chassis_options(frontend, opts);
main_entries = chassis_options_to_g_option_entries(opts);
g_option_context_add_main_entries(option_ctx, main_entries, NULL);
/**
* parse once to get the basic options
*
* leave the unknown options in the list
*/
if (FALSE == g_option_context_parse(option_ctx, &argc, &argv, &gerr)) {
g_critical("%s", gerr->message);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->keyfile) {
if (chassis_keyfile_to_options(frontend->keyfile, "mysql-proxy", main_entries)) {
GOTO_EXIT(EXIT_FAILURE);
}
}
//add by vinchen/CFR
if (frontend->base_dir != NULL)
srv->base_dir_org = g_strdup(frontend->base_dir);
if (chassis_frontend_init_basedir(argv[0], &(frontend->base_dir))) {
GOTO_EXIT(EXIT_FAILURE);
}
/* basic setup is done, base-dir is known, ... */
frontend->lua_subdirs = g_new(char *, 2);
frontend->lua_subdirs[0] = g_strdup("mysql-proxy");
frontend->lua_subdirs[1] = NULL;
if (chassis_frontend_init_lua_path(frontend->lua_path, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
if (chassis_frontend_init_lua_cpath(frontend->lua_cpath, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
/* assign the mysqld part to the */
network_mysqld_init(srv); /* starts the also the lua-scope, LUA_PATH and LUA_CPATH have to be set before this being called */
#ifdef HAVE_SIGACTION
/* register the sigsegv interceptor */
memset(&sigsegv_sa, 0, sizeof(sigsegv_sa));
sigsegv_sa.sa_handler = sigsegv_handler;
sigemptyset(&sigsegv_sa.sa_mask);
srv->invoke_dbg_on_crash = frontend->invoke_dbg_on_crash; //add by vinchen/CFR
if (frontend->invoke_dbg_on_crash && !(RUNNING_ON_VALGRIND)) {
sigaction(SIGSEGV, &sigsegv_sa, NULL);
}
#endif
/*
* some plugins cannot see the chassis struct from the point
* where they open files, hence we must make it available
*/
srv->base_dir = g_strdup(frontend->base_dir);
if (frontend->plugin_dir) //vinchen/CFR
srv->plugin_dir_org = g_strdup(frontend->plugin_dir);
if (frontend->pid_file)
srv->pid_file_org = g_strdup(frontend->pid_file);
if (frontend->log_filename)
srv->log_file_name_org = g_strdup(frontend->log_filename);
if (frontend->lua_path)
srv->lua_path_org = g_strdup(frontend->lua_path);
if (frontend->lua_cpath)
srv->lua_cpath_org = g_strdup(frontend->lua_cpath);
srv->max_files_number = frontend->max_files_number;
srv->conn_log = frontend->conn_log; //add by huibohuang
srv->query_response_time_stats = frontend->query_response_time_stats;
srv->ignore_user = g_strdupv(frontend->ignore_user);
chassis_frontend_init_plugin_dir(&frontend->plugin_dir, srv->base_dir);
/*
* these are used before we gathered all the options
* from the plugins, thus we need to fix them up before
* dealing with all the rest.
*/
chassis_resolve_path(srv->base_dir, &frontend->log_filename);
chassis_resolve_path(srv->base_dir, &frontend->pid_file);
chassis_resolve_path(srv->base_dir, &frontend->plugin_dir);
/*
* start the logging
*/
if (frontend->log_filename) {
log->log_filename = g_strdup(frontend->log_filename);
}
log->use_syslog = frontend->use_syslog;
if (log->log_filename && log->use_syslog) {
g_critical("%s: log-file and log-use-syslog were given, but only one is allowed",
G_STRLOC);
GOTO_EXIT(EXIT_FAILURE);
}
if (log->log_filename && FALSE == chassis_log_open(log)) {
g_critical("can't open log-file '%s': %s", log->log_filename, g_strerror(errno));
GOTO_EXIT(EXIT_FAILURE);
}
/* handle log-level after the config-file is read, just in case it is specified in the file */
if (frontend->log_level) {
if (0 != chassis_log_set_level(log, frontend->log_level)) {
g_critical("--log-level=... failed, level '%s' is unknown ",
frontend->log_level);
GOTO_EXIT(EXIT_FAILURE);
}
} else {
/* if it is not set, use "critical" as default */
log->min_lvl = G_LOG_LEVEL_CRITICAL;
}
/*
* the MySQL Proxy should load 'admin' and 'proxy' plugins
*/
if (!frontend->plugin_names) {
frontend->plugin_names = g_new(char *, 2);
frontend->plugin_names[0] = g_strdup("proxy");
frontend->plugin_names[1] = NULL;
}
/**
* This is the "real" main which is called both on Windows and UNIX platforms.
* For the Windows service case, this will also handle the notifications and set
* up the logging support appropriately.
*/
int main_cmdline(int argc, char **argv) {
chassis *srv = NULL;
#ifdef HAVE_SIGACTION
static struct sigaction sigsegv_sa;
#endif
/* read the command-line options */
GOptionContext *option_ctx = NULL;
GOptionEntry *main_entries = NULL;
chassis_frontend_t *frontend = NULL;
chassis_options_t *opts = NULL;
GError *gerr = NULL;
chassis_log *log = NULL;
/* a little helper macro to set the src-location that we stepped out at to exit */
#define GOTO_EXIT(status) \
exit_code = status; \
exit_location = G_STRLOC; \
goto exit_nicely;
int exit_code = EXIT_SUCCESS;
const gchar *exit_location = G_STRLOC;
if (chassis_frontend_init_glib()) { /* init the thread, module, ... system */
GOTO_EXIT(EXIT_FAILURE);
}
/* start the logging ... to stderr */
log = chassis_log_new();
log->min_lvl = G_LOG_LEVEL_MESSAGE; /* display messages while parsing or loading plugins */
g_log_set_default_handler(chassis_log_func, log);
#ifdef _WIN32
if (chassis_win32_is_service() && chassis_log_set_event_log(log, g_get_prgname())) {
GOTO_EXIT(EXIT_FAILURE);
}
if (chassis_frontend_init_win32()) { /* setup winsock */
GOTO_EXIT(EXIT_FAILURE);
}
#endif
/* may fail on library mismatch */
if (NULL == (srv = chassis_new())) {
GOTO_EXIT(EXIT_FAILURE);
}
srv->log = log; /* we need the log structure for the log-rotation */
frontend = chassis_frontend_new();
option_ctx = g_option_context_new("- MySQL Proxy");
/**
* parse once to get the basic options like --defaults-file and --version
*
* leave the unknown options in the list
*/
if (chassis_frontend_init_base_options(option_ctx, &argc, &argv, &(frontend->print_version), &(frontend->default_file), &gerr)) {
g_log_dbproxy(g_critical, "%s", gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->default_file) {
if (!(frontend->keyfile = chassis_frontend_open_config_file(frontend->default_file, &gerr))) {
g_log_dbproxy(g_critical, "loading config from '%s' failed: %s", frontend->default_file, gerr->message);
g_clear_error(&gerr);
GOTO_EXIT(EXIT_FAILURE);
}
}
/* print the main version number here, but don't exit
* we check for print_version again, after loading the plugins (if any)
* and print their version numbers, too. then we exit cleanly.
*/
if (frontend->print_version) {
g_print("%s" CHASSIS_NEWLINE, CHASSIS_BUILD_TAG);
g_print(" glib2: %d.%d.%d" CHASSIS_NEWLINE, GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
g_print(" libevent: %s" CHASSIS_NEWLINE, event_get_version());
GOTO_EXIT(EXIT_SUCCESS);
}
/* add the other options which can also appear in the configfile */
opts = chassis_options_new();
chassis_frontend_set_chassis_options(frontend, opts);
main_entries = chassis_options_to_g_option_entries(opts);
g_option_context_add_main_entries(option_ctx, main_entries, NULL);
srv->opts = opts;
/**
* parse once to get the basic options
*
* leave the unknown options in the list
*/
g_option_context_set_help_enabled(option_ctx, TRUE);
if (FALSE == g_option_context_parse(option_ctx, &argc, &argv, &gerr)) {
g_log_dbproxy(g_critical, "%s", gerr->message);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->keyfile) {
if (chassis_keyfile_to_options(frontend->keyfile, "mysql-proxy", main_entries)) {
GOTO_EXIT(EXIT_FAILURE);
}
}
if (chassis_frontend_init_basedir(argv[0], &(frontend->base_dir))) {
GOTO_EXIT(EXIT_FAILURE);
}
/* basic setup is done, base-dir is known, ... */
frontend->lua_subdirs = g_new(char *, 2);
frontend->lua_subdirs[0] = g_strdup("mysql-proxy");
frontend->lua_subdirs[1] = NULL;
if (chassis_frontend_init_lua_path(frontend->lua_path, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
if (chassis_frontend_init_lua_cpath(frontend->lua_cpath, frontend->base_dir, frontend->lua_subdirs)) {
GOTO_EXIT(EXIT_FAILURE);
}
/* make sure that he max-thread-count isn't negative */
if (frontend->event_thread_count < 1) {
g_log_dbproxy(g_critical, "--event-threads has to be >= 1, is %d", frontend->event_thread_count);
GOTO_EXIT(EXIT_FAILURE);
}
srv->event_thread_count = frontend->event_thread_count;
if (frontend->wait_timeout < 0) {
g_log_dbproxy(g_critical, "--wait-timeout has to be >= 0, is %d", frontend->wait_timeout);
GOTO_EXIT(EXIT_FAILURE);
}
srv->wait_timeout = frontend->wait_timeout;
if (frontend->shutdown_timeout < 1) {
g_log_dbproxy(g_critical, "--shutdown-timeout has to be >= 1, is %d", frontend->shutdown_timeout);
GOTO_EXIT(EXIT_FAILURE);
}
srv->shutdown_timeout = frontend->shutdown_timeout;
if (frontend->db_connection_idle_timeout < 0) {
g_log_dbproxy(g_critical, "--db-connection-idle-timeout has to be >= 0, is %d", frontend->db_connection_idle_timeout);
GOTO_EXIT(EXIT_FAILURE);
}
srv->db_connection_idle_timeout = frontend->db_connection_idle_timeout;
if (frontend->db_connection_max_age < 0) {
g_log_dbproxy(g_critical, "--db-connection-max-age has to be >= 0, is %d", frontend->db_connection_max_age);
GOTO_EXIT(EXIT_FAILURE);
}
srv->db_connection_max_age = frontend->db_connection_max_age;
if (frontend->mysql_version == NULL
|| strcmp(frontend->mysql_version, "5.5") == 0) {
srv->my_version = MYSQL_55;
} else if (frontend->mysql_version == NULL
|| strcmp(frontend->mysql_version, "5.6") == 0) {
srv->my_version = MYSQL_56;
} else {
g_log_dbproxy(g_critical, "--mysql-version has to be 5.6 or 5.5, is %s", frontend->mysql_version);
GOTO_EXIT(EXIT_FAILURE);
}
if (frontend->max_connections < 0) {
g_log_dbproxy(g_critical, "--max-connections has to be >= 0, is %d", frontend->max_connections);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_max_connections = frontend->max_connections;
if (frontend->long_wait_time < 0) {
g_log_dbproxy(g_critical, "--long-wait-time has to be >= 0, is %d", frontend->long_wait_time);
GOTO_EXIT(EXIT_FAILURE);
}
srv->long_wait_time = frontend->long_wait_time;
if (frontend->long_query_time < 0) {
g_log_dbproxy(g_critical, "--long-query-time has to be >= 0, is %d", frontend->long_query_time);
GOTO_EXIT(EXIT_FAILURE);
}
srv->long_query_time = frontend->long_query_time;
if (frontend->query_response_time_stats < 0) {
g_log_dbproxy(g_critical, "--query-response-time-stats has to be >= 0, is %d", frontend->query_response_time_stats);
GOTO_EXIT(EXIT_FAILURE);
}
srv->query_response_time_stats = frontend->query_response_time_stats;
if (frontend->query_response_time_stats > 1 && frontend->query_response_time_range_base < 2) {
g_log_dbproxy(g_critical, "--query-response-time-range-base has to be >= 2, is %d", frontend->query_response_time_range_base);
GOTO_EXIT(EXIT_FAILURE);
}
srv->query_response_time_range_base = frontend->query_response_time_range_base;
if (frontend->lastest_query_num < 0) {
g_log_dbproxy(g_critical, "--lastest-query-num has to be >= 0, is %d", frontend->lastest_query_num);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_reserved->lastest_query_num = frontend->lastest_query_num;
if (frontend->query_filter_time_threshold < -1) {
g_log_dbproxy(g_critical, "--query-filter-time-threshold has to be >= -1, is %d", frontend->query_filter_time_threshold);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_reserved->query_filter_time_threshold = frontend->query_filter_time_threshold;
if (frontend->query_filter_frequent_threshold < 0) {
g_log_dbproxy(g_critical, "--query-filter-frequent-threshold has to be >= 0, is %f", frontend->query_filter_frequent_threshold);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_reserved->query_filter_frequent_threshold = frontend->query_filter_frequent_threshold;
if (frontend->access_num_per_time_window < 1) {
g_log_dbproxy(g_critical, "--freq-access-num-threshold has to be >= 1, is %d", frontend->access_num_per_time_window);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_reserved->access_num_per_time_window = frontend->access_num_per_time_window;
int flag = 0;
if (frontend->auto_filter_flag == NULL || strcasecmp(frontend->auto_filter_flag, "OFF") == 0)
flag = 0;
else if (strcasecmp(frontend->auto_filter_flag, "ON") == 0)
flag = 1;
else
{
g_log_dbproxy(g_critical, "--auto-filter-flag has to be on or off, is %s", frontend->auto_filter_flag);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_filter->auto_filter_flag = flag;
if (frontend->manual_filter_flag == NULL || strcasecmp(frontend->manual_filter_flag, "OFF") == 0)
flag = 0;
else if (strcasecmp(frontend->manual_filter_flag, "ON") == 0)
flag = 1;
else
{
g_log_dbproxy(g_critical, "--manual-filter-flag has to be on or off, is %s", frontend->manual_filter_flag);
GOTO_EXIT(EXIT_FAILURE);
}
srv->proxy_filter->manual_filter_flag = flag;
if (frontend->max_backend_tr < 0) {
g_log_dbproxy(g_critical, "--backend-max-thread-running has to be >= 0, is %d", frontend->max_backend_tr);
GOTO_EXIT(EXIT_FAILURE);
}
srv->max_backend_tr = frontend->max_backend_tr;
if (frontend->thread_running_sleep_delay < 1) {
g_log_dbproxy(g_critical, "--thread-running-sleep-delay has to be >= 1, is %d", frontend->thread_running_sleep_delay);
GOTO_EXIT(EXIT_FAILURE);
}
srv->thread_running_sleep_delay = frontend->thread_running_sleep_delay;
if (frontend->remove_backend_timeout < 0) {
g_log_dbproxy(g_critical, "--remove-backend-timeout has to be >= 0, is %d", frontend->remove_backend_timeout);
GOTO_EXIT(EXIT_FAILURE);
}
/* assign the mysqld part to the */
network_mysqld_init(srv, frontend->default_file, frontend->remove_backend_timeout); /* starts the also the lua-scope, LUA_PATH and LUA_CPATH have to be set before this being called */
#ifdef HAVE_SIGACTION
/* register the sigsegv interceptor */
memset(&sigsegv_sa, 0, sizeof(sigsegv_sa));
sigsegv_sa.sa_handler = sigsegv_handler;
sigemptyset(&sigsegv_sa.sa_mask);
sigaction(SIGSEGV, &sigsegv_sa, NULL);
#ifdef SIGBUS
sigaction(SIGBUS, &sigsegv_sa, NULL);
#endif
sigaction(SIGILL, &sigsegv_sa, NULL);
sigaction(SIGFPE, &sigsegv_sa, NULL);
/*if (frontend->invoke_dbg_on_crash && !(RUNNING_ON_VALGRIND)) {
sigaction(SIGSEGV, &sigsegv_sa, NULL);
}*/
#endif
/*
* some plugins cannot see the chassis struct from the point
* where they open files, hence we must make it available
*/
srv->base_dir = g_strdup(frontend->base_dir);
chassis_frontend_init_plugin_dir(&frontend->plugin_dir, srv->base_dir);
/*
* these are used before we gathered all the options
* from the plugins, thus we need to fix them up before
* dealing with all the rest.
*/
if (chassis_frontend_init_logdir(frontend->log_path)) {
GOTO_EXIT(EXIT_FAILURE);
}
chassis_resolve_path(srv->base_dir, &frontend->log_path);
chassis_resolve_path(srv->base_dir, &frontend->plugin_dir);
/*
* start the logging and pid
*/
if (frontend->log_path) {
if (frontend->instance_name == NULL) {
gchar *default_file = frontend->default_file;
gchar *slash = strrchr(default_file, '/');
if (slash != NULL) ++slash;
else slash = default_file;
gchar *dot = strrchr(default_file, '.');
if (dot != NULL && dot >= slash) frontend->instance_name = g_strndup(slash, dot-slash);
else frontend->instance_name = g_strdup(slash);
}
log->log_filename = g_strdup_printf("%s/%s.log", frontend->log_path, frontend->instance_name);
frontend->pid_file = g_strdup_printf("%s/%s.pid", frontend->log_path, frontend->instance_name);
srv->log_path = g_strdup(frontend->log_path);
}
log->use_syslog = frontend->use_syslog;
if (log->log_filename && log->use_syslog) {
g_log_dbproxy(g_critical, "log-file and log-use-syslog were given, but only one is allowed");
GOTO_EXIT(EXIT_FAILURE);
}
/*
* we have to drop root privileges in chassis_mainloop() after
* the plugins opened the ports, so we need the user there
*/
if (frontend->user) {
srv->user = g_strdup(frontend->user);
}
/**
* create the path of sql and its parents path if it is necessary
*/
gchar *sql_path = g_strdup_printf("%s/%s", srv->log_path, SQL_LOG_DIR);
if(g_mkdir_with_parents(sql_path, S_IRWXU|S_IRWXG|S_IRWXO) != 0) {
g_log_dbproxy(g_critical, "g_mkdir_with_parents(%s) failed: %s", sql_path, g_strerror(errno));
g_free(sql_path);
GOTO_EXIT(EXIT_FAILURE);
}
g_free(sql_path);
/*
* check whether we should drop root privileges
*/
#ifndef _win32
if (srv->user) {
struct passwd *user_info;
uid_t user_id= geteuid();
/* Don't bother if we aren't superuser */
if (user_id) {
g_log_dbproxy(g_warning, "current user is not root, --user is ignored");
} else {
if (NULL == (user_info = getpwnam(srv->user))) {
g_log_dbproxy(g_critical, "unknown user: %s", srv->user);
return -1;
}
/* chown log-path */
if (-1 == chown_recursion(srv->log_path, user_info->pw_uid, user_info->pw_gid)) {
g_log_dbproxy(g_critical, "chown_recursion(%s) failed: %s", srv->log_path, g_strerror(errno));
GOTO_EXIT(EXIT_FAILURE);
}
setgid(user_info->pw_gid);
setuid(user_info->pw_uid);
g_log_dbproxy(g_debug, "running as user: %s (%d/%d)", srv->user, user_info->pw_uid, user_info->pw_gid);
/*check the config file can read or write, and the config file dir can execute*/
gchar *config_file = frontend->default_file;
/*if the config_file is relative get the real path */
char resolved_path[PATH_MAX];
if (g_path_is_absolute(config_file) == FALSE) {
realpath(config_file, resolved_path);
config_file = resolved_path;
}
gchar *config_dir = g_path_get_dirname(config_file);
if (-1 == faccessat(0, config_file, R_OK | W_OK, AT_EACCESS)
|| -1 == faccessat(0, config_dir, X_OK | W_OK, AT_EACCESS)) {
g_free(config_dir);
g_log_dbproxy(g_critical, "%s don't have correct privilege for the user %s set in the config file, config file should have read write privileges and the config file dir should have execute and write privilege.", config_file, srv->user);
GOTO_EXIT(EXIT_FAILURE);
}
g_free(config_dir);
g_log_dbproxy(g_message, "running as user: %s (%d/%d)", srv->user, user_info->pw_uid, user_info->pw_gid);
}
}
#endif
if (log->log_filename && FALSE == chassis_log_open(log)) {
g_log_dbproxy(g_critical, "can't open log-file '%s': %s", log->log_filename, g_strerror(errno));
GOTO_EXIT(EXIT_FAILURE);
}
/* handle log-level after the config-file is read, just in case it is specified in the file */
if (frontend->log_level) {
if (0 != chassis_log_set_level(log, frontend->log_level)) {
g_log_dbproxy(g_critical, "--log-level=... failed, level '%s' is unknown ", frontend->log_level);
GOTO_EXIT(EXIT_FAILURE);
}
} else {
/* if it is not set, use "critical" as default */
log->min_lvl = G_LOG_LEVEL_CRITICAL;
}
if (frontend->log_trace_modules < 0) {
g_log_dbproxy(g_critical, "log-trace-modules has to be >= 0, is %d", frontend->log_trace_modules);
GOTO_EXIT(EXIT_FAILURE);
}
srv->log->log_trace_modules = frontend->log_trace_modules;
if(frontend->db_connect_timeout < 0) {
g_log_dbproxy(g_critical, "db_connect_timeout has to be >= 0.0, is %lf", frontend->db_connect_timeout);
GOTO_EXIT(EXIT_FAILURE);
}
srv->db_connect_timeout = frontend->db_connect_timeout;
/*
* the MySQL Proxy should load 'admin' and 'proxy' plugins
*/
if (!frontend->plugin_names) {
frontend->plugin_names = g_new(char *, 3);
frontend->plugin_names[0] = g_strdup("admin");
frontend->plugin_names[1] = g_strdup("proxy");
frontend->plugin_names[2] = NULL;
}