/* Daemon stop sequence */
static void
stop_check(void)
{
/* Destroy master thread */
signal_handler_destroy();
thread_destroy_master(master);
free_checkers_queue();
free_ssl();
if (!(debug & 16))
clear_services();
ipvs_stop();
/* Stop daemon */
pidfile_rm(checkers_pidfile);
/* Clean data */
free_global_data(data);
free_check_data(check_data);
#ifdef _WITH_VRRP_
free_interface_queue();
#endif
#ifdef _DEBUG_
keepalived_free_final("Healthcheck child process");
#endif
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
closelog();
exit(0);
}
/* Reload thread */
int
reload_vrrp_thread(thread * thread_obj)
{
/* set the reloading flag */
SET_RELOAD;
SYS_VRRP_LOG_INFO("VRRP configure have been reload.");
/* Close sockpool */
free_vrrp_sockpool(vrrp_data);
/* Signal handling */
signal_reset();
signal_set(SIGHUP, sighup_vrrp, NULL);
signal_set(SIGINT, sigend_vrrp, NULL);
signal_set(SIGTERM, sigend_vrrp, NULL);
signal_ignore(SIGPIPE);
/* Destroy master thread */
thread_destroy_master(master);
master = thread_make_master();
free_global_data(data);
/* add by zhouben */
backup_if_queue();
kernel_netlink_close();
free_vrrp_buffer();
gratuitous_arp_close();
ndisc_close();
vrrp_trackip_close();
/* Save previous conf data */
old_vrrp_data = vrrp_data;
vrrp_data = NULL;
#ifdef _WITH_LVS_
/* Clean ipvs related */
//ipvs_stop();
#endif
/* Reload the conf */
mem_allocated = 0;
vrrp_signal_init();
signal_set(SIGCHLD, thread_child_handler, master);
start_vrrp();
/* free backup data */
free_old_interface_queue_only();
free_vrrp_data(old_vrrp_data);
UNSET_RELOAD;
/*end of reload, store the state to file*/
reloading = 0;
vrrp_state_store();
return 0;
}
/* Daemon stop sequence */
static void
stop_vrrp(void)
{
signal_handler_destroy();
if (!(debug & 8))
shutdown_vrrp_instances();
/* Clear static entries */
netlink_rtlist(vrrp_data->static_routes, IPROUTE_DEL);
netlink_iplist(vrrp_data->static_addresses, IPADDRESS_DEL, NULL);
#ifdef _WITH_SNMP_
if (snmp)
vrrp_snmp_agent_close();
#endif
/* Stop daemon */
pidfile_rm(vrrp_pidfile);
#ifdef _WITH_LVS_
if (vrrp_ipvs_needed()) {
/* Clean ipvs related */
ipvs_stop();
}
#endif
/* Clean data */
free_global_data(global_data);
vrrp_dispatcher_release(vrrp_data);
free_vrrp_data(vrrp_data);
free_vrrp_buffer();
free_interface_queue();
kernel_netlink_close();
thread_destroy_master(master);
gratuitous_arp_close();
ndisc_close();
#ifdef _DEBUG_
keepalived_free_final("VRRP Child process");
#endif
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
closelog();
exit(0);
}
/* Daemon stop sequence */
static void
stop_bfd(int status)
{
struct rusage usage;
if (__test_bit(CONFIG_TEST_BIT, &debug))
return;
/* Stop daemon */
pidfile_rm(bfd_pidfile);
/* Clean data */
free_global_data(global_data);
bfd_dispatcher_release(bfd_data);
free_bfd_data(bfd_data);
free_bfd_buffer();
thread_destroy_master(master);
free_parent_mallocs_exit();
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
if (__test_bit(LOG_DETAIL_BIT, &debug)) {
getrusage(RUSAGE_SELF, &usage);
log_message(LOG_INFO, "Stopped - used %ld.%6.6ld user time, %ld.%6.6ld system time", usage.ru_utime.tv_sec, usage.ru_utime.tv_usec, usage.ru_stime.tv_sec, usage.ru_stime.tv_usec);
}
else
log_message(LOG_INFO, "Stopped");
#ifdef ENABLE_LOG_TO_FILE
if (log_file_name)
close_log_file();
#endif
closelog();
#ifndef _MEM_CHECK_LOG_
FREE_PTR(bfd_syslog_ident);
#else
if (bfd_syslog_ident)
free(bfd_syslog_ident);
#endif
close_std_fd();
exit(status);
}
/* Reload thread */
int
reload_vrrp_thread(thread_t * thread)
{
/* set the reloading flag */
SET_RELOAD;
/* Signal handling */
signal_handler_reset();
/* Destroy master thread */
vrrp_dispatcher_release(vrrp_data);
kernel_netlink_close();
thread_destroy_master(master);
master = thread_make_master();
free_global_data(global_data);
free_interface_queue();
free_vrrp_buffer();
gratuitous_arp_close();
ndisc_close();
#ifdef _WITH_LVS_
if (vrrp_ipvs_needed()) {
/* Clean ipvs related */
ipvs_stop();
}
#endif
/* Save previous conf data */
old_vrrp_data = vrrp_data;
vrrp_data = NULL;
/* Reload the conf */
#ifdef _DEBUG_
mem_allocated = 0;
#endif
vrrp_signal_init();
signal_set(SIGCHLD, thread_child_handler, master);
start_vrrp();
/* free backup data */
free_vrrp_data(old_vrrp_data);
UNSET_RELOAD;
return 0;
}
/* Daemon stop sequence */
static void
stop_check(int status)
{
/* Destroy master thread */
signal_handler_destroy();
thread_destroy_master(master);
free_checkers_queue();
free_ssl();
if (!__test_bit(DONT_RELEASE_IPVS_BIT, &debug))
clear_services();
ipvs_stop();
#ifdef _WITH_SNMP_CHECKER_
if (global_data->enable_snmp_checker)
check_snmp_agent_close();
#endif
/* Stop daemon */
pidfile_rm(checkers_pidfile);
/* Clean data */
free_global_data(global_data);
free_check_data(check_data);
#ifdef _WITH_VRRP_
free_interface_queue();
#endif
free_parent_mallocs_exit();
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
log_message(LOG_INFO, "Stopped");
closelog();
#ifndef _MEM_CHECK_LOG_
FREE_PTR(check_syslog_ident);
#else
if (check_syslog_ident)
free(check_syslog_ident);
#endif
exit(status);
}
/* Reload thread */
int
reload_check_thread(thread_t * thread)
{
/* set the reloading flag */
SET_RELOAD;
log_message(LOG_INFO, "Got SIGHUP, reloading checker configuration");
/* Signals handling */
signal_handler_reset();
/* Destroy master thread */
#ifdef _WITH_VRRP_
kernel_netlink_close();
#endif
thread_destroy_master(master);
master = thread_make_master();
free_global_data(global_data);
free_checkers_queue();
#ifdef _WITH_VRRP_
free_interface_queue();
#endif
free_ssl();
ipvs_stop();
/* Save previous conf data */
old_check_data = check_data;
check_data = NULL;
/* Reload the conf */
#ifdef _DEBUG_
mem_allocated = 0;
#endif
check_signal_init();
signal_set(SIGCHLD, thread_child_handler, master);
start_check();
/* free backup data */
free_check_data(old_check_data);
UNSET_RELOAD;
return 0;
}
/* Daemon stop sequence */
static void
stop_keepalived(void)
{
/* Just cleanup memory & exit */
signal_handler_destroy();
thread_destroy_master(master);
pidfile_rm(main_pidfile);
if (__test_bit(DAEMON_VRRP, &daemon_mode))
pidfile_rm(vrrp_pidfile);
if (__test_bit(DAEMON_CHECKERS, &daemon_mode))
pidfile_rm(checkers_pidfile);
#ifdef _DEBUG_
keepalived_free_final("Parent process");
#endif
}
/* Reload thread */
int
reload_vrrp_thread(thread_t * thread)
{
/* set the reloading flag */
SET_RELOAD;
/* Close sockpool */
free_vrrp_sockpool(vrrp_data);
/* Signal handling */
signal_reset();
signal_handler_destroy();
/* Destroy master thread */
thread_destroy_master(master);
master = thread_make_master();
free_global_data(data);
free_interface_queue();
free_vrrp_buffer();
gratuitous_arp_close();
ndisc_close();
/* Save previous conf data */
old_vrrp_data = vrrp_data;
vrrp_data = NULL;
#ifdef _WITH_LVS_
/* Clean ipvs related */
ipvs_stop();
#endif
/* Reload the conf */
mem_allocated = 0;
vrrp_signal_init();
signal_set(SIGCHLD, thread_child_handler, master);
start_vrrp();
/* free backup data */
free_vrrp_data(old_vrrp_data);
UNSET_RELOAD;
return 0;
}
/* Daemon stop sequence */
static void
stop_vrrp(void)
{
/* Destroy master thread */
signal_handler_destroy();
free_vrrp_sockpool(vrrp_data);
thread_destroy_master(master);
/* Clear static entries */
netlink_rtlist_ipv4(vrrp_data->static_routes, IPROUTE_DEL);
netlink_iplist_ipv4(-1, vrrp_data->static_addresses, IPADDRESS_DEL);
if (!(debug & 8))
shutdown_vrrp_instances();
free_interface_queue();
gratuitous_arp_close();
ndisc_close();
vrrp_trackip_close();
/* Stop daemon */
pidfile_rm(vrrp_pidfile);
/* Clean data */
free_global_data(data);
free_vrrp_data(vrrp_data);
free_vrrp_buffer();
#ifdef _WITH_LVS_
/* Clean ipvs related */
//ipvs_stop();
#endif
#ifdef _DEBUG_
keepalived_free_final("VRRP Child process");
#endif
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
closelog();
exit(0);
}
/* Daemon stop sequence */
static void
stop_keepalived(void)
{
log_message(LOG_INFO, "Stopping " VERSION_STRING);
/* Just cleanup memory & exit */
signal_handler_destroy();
thread_destroy_master(master);
pidfile_rm(main_pidfile);
if (daemon_mode & 1 || !daemon_mode)
pidfile_rm(vrrp_pidfile);
if (daemon_mode & 2 || !daemon_mode)
pidfile_rm(checkers_pidfile);
#ifdef _DEBUG_
keepalived_free_final("Parent process");
#endif
}
/* Daemon stop sequence */
static void
stop_keepalived(void)
{
#ifndef _DEBUG_
/* Just cleanup memory & exit */
signal_handler_destroy();
thread_destroy_master(master);
#ifdef _WITH_VRRP_
if (__test_bit(DAEMON_VRRP, &daemon_mode))
pidfile_rm(vrrp_pidfile);
#endif
#ifdef _WITH_LVS_
if (__test_bit(DAEMON_CHECKERS, &daemon_mode))
pidfile_rm(checkers_pidfile);
#endif
pidfile_rm(main_pidfile);
#endif
}
/* Daemon stop sequence */
static void
stop_check(void)
{
/* Destroy master thread */
signal_handler_destroy();
thread_destroy_master(master);
free_checkers_queue();
free_ssl();
if (!__test_bit(DONT_RELEASE_IPVS_BIT, &debug))
clear_services();
ipvs_stop();
#ifdef _WITH_SNMP_CHECKER_
if (global_data->enable_snmp_checker)
check_snmp_agent_close();
#endif
/* Stop daemon */
pidfile_rm(checkers_pidfile);
/* Clean data */
free_global_data(global_data);
free_check_data(check_data);
#ifdef _WITH_VRRP_
free_interface_queue();
#endif
#ifdef _MEM_CHECK_
keepalived_free_final("Healthcheck child process");
#endif
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
log_message(LOG_INFO, "Stopped");
closelog();
exit(0);
}
/* Reload thread */
int
reload_check_thread(thread_t * thread)
{
/* set the reloading flag */
SET_RELOAD;
/* Signals handling */
signal_reset();
signal_handler_destroy();
/* Destroy master thread */
thread_destroy_master(master);
master = thread_make_master();
free_global_data(data);
free_checkers_queue();
#ifdef _WITH_VRRP_
free_interface_queue();
#endif
free_ssl();
ipvs_stop();
/* Save previous conf data */
old_check_data = check_data;
check_data = NULL;
/* Reload the conf */
mem_allocated = 0;
check_signal_init();
signal_set(SIGCHLD, thread_child_handler, master);
start_check();
/* free backup data */
free_check_data(old_check_data);
UNSET_RELOAD;
return 0;
}
/* Register CHECK thread */
int
start_check_child(void)
{
#ifndef _DEBUG_
pid_t pid;
int ret;
char *syslog_ident;
/* Initialize child process */
pid = fork();
if (pid < 0) {
log_message(LOG_INFO, "Healthcheck child process: fork error(%s)"
, strerror(errno));
return -1;
} else if (pid) {
checkers_child = pid;
log_message(LOG_INFO, "Starting Healthcheck child process, pid=%d"
, pid);
/* Start respawning thread */
thread_add_child(master, check_respawn_thread, NULL,
pid, RESPAWN_TIMER);
return 0;
}
if ((instance_name
#if HAVE_DECL_CLONE_NEWNET
|| network_namespace
#endif
) &&
(check_syslog_ident = make_syslog_ident(PROG_CHECK)))
syslog_ident = check_syslog_ident;
else
syslog_ident = PROG_CHECK;
/* Opening local CHECK syslog channel */
openlog(syslog_ident, LOG_PID | ((__test_bit(LOG_CONSOLE_BIT, &debug)) ? LOG_CONS : 0)
, (log_facility==LOG_DAEMON) ? LOG_LOCAL2 : log_facility);
#ifdef _MEM_CHECK_
mem_log_init(PROG_CHECK, "Healthcheck child process");
#endif
free_parent_mallocs_startup(true);
/* Child process part, write pidfile */
if (!pidfile_write(checkers_pidfile, getpid())) {
log_message(LOG_INFO, "Healthcheck child process: cannot write pidfile");
exit(KEEPALIVED_EXIT_FATAL);
}
/* Create the new master thread */
signal_handler_destroy();
thread_destroy_master(master); /* This destroys any residual settings from the parent */
master = thread_make_master();
/* change to / dir */
ret = chdir("/");
if (ret < 0) {
log_message(LOG_INFO, "Healthcheck child process: error chdir");
}
/* Set mask */
umask(0);
#endif
/* If last process died during a reload, we can get there and we
* don't want to loop again, because we're not reloading anymore.
*/
UNSET_RELOAD;
/* Signal handling initialization */
check_signal_init();
/* Start Healthcheck daemon */
start_check();
/* Launch the scheduling I/O multiplexer */
launch_scheduler();
/* Finish healthchecker daemon process */
stop_check(EXIT_SUCCESS);
/* unreachable */
exit(EXIT_SUCCESS);
}
/* Daemon stop sequence */
static void
stop_vrrp(void)
{
/* Ensure any interfaces are in backup mode,
* sending a priority 0 vrrp message
*/
restore_vrrp_interfaces();
#ifdef _HAVE_LIBIPTC_
iptables_fini();
#endif
/* Clear static entries */
netlink_rtlist(vrrp_data->static_routes, IPROUTE_DEL);
netlink_rulelist(vrrp_data->static_rules, IPRULE_DEL);
netlink_iplist(vrrp_data->static_addresses, IPADDRESS_DEL);
#ifdef _WITH_SNMP_
if (global_data->enable_snmp_keepalived || global_data->enable_snmp_rfc)
vrrp_snmp_agent_close();
#endif
/* Stop daemon */
pidfile_rm(vrrp_pidfile);
#ifdef _WITH_LVS_
if (vrrp_ipvs_needed()) {
/* Clean ipvs related */
ipvs_stop();
}
#endif
/* Clean data */
free_global_data(global_data);
vrrp_dispatcher_release(vrrp_data);
/* This is not nice, but it significantly increases the chances
* of an IGMP leave group being sent for some reason.
* Since we are about to exit, it doesn't affect anything else
* running. */
sleep ( 1 );
if (!__test_bit(DONT_RELEASE_VRRP_BIT, &debug))
shutdown_vrrp_instances();
free_vrrp_data(vrrp_data);
free_vrrp_buffer();
free_interface_queue();
kernel_netlink_close();
thread_destroy_master(master);
gratuitous_arp_close();
ndisc_close();
signal_handler_destroy();
#ifdef _DEBUG_
keepalived_free_final("VRRP Child process");
#endif
/*
* Reached when terminate signal catched.
* finally return to parent process.
*/
closelog();
exit(0);
}
/* Register VRRP thread */
int
start_vrrp_child(void)
{
#ifndef _DEBUG_
pid_t pid;
int ret;
/* Initialize child process */
pid = fork();
if (pid < 0) {
log_message(LOG_INFO, "VRRP child process: fork error(%s)"
, strerror(errno));
return -1;
} else if (pid) {
vrrp_child = pid;
log_message(LOG_INFO, "Starting VRRP child process, pid=%d"
, pid);
/* Start respawning thread */
thread_add_child(master, vrrp_respawn_thread, NULL,
pid, RESPAWN_TIMER);
return 0;
}
signal_handler_destroy();
/* Opening local VRRP syslog channel */
openlog(PROG_VRRP, LOG_PID | ((__test_bit(LOG_CONSOLE_BIT, &debug)) ? LOG_CONS : 0)
, (log_facility==LOG_DAEMON) ? LOG_LOCAL1 : log_facility);
/* Child process part, write pidfile */
if (!pidfile_write(vrrp_pidfile, getpid())) {
/* Fatal error */
log_message(LOG_INFO, "VRRP child process: cannot write pidfile");
exit(0);
}
/* Create the new master thread */
thread_destroy_master(master);
master = thread_make_master();
/* change to / dir */
ret = chdir("/");
if (ret < 0) {
log_message(LOG_INFO, "VRRP child process: error chdir");
}
/* Set mask */
umask(0);
#endif
/* If last process died during a reload, we can get there and we
* don't want to loop again, because we're not reloading anymore.
*/
UNSET_RELOAD;
/* Signal handling initialization */
vrrp_signal_init();
/* Start VRRP daemon */
start_vrrp();
/* Launch the scheduling I/O multiplexer */
launch_scheduler();
/* Finish VRRP daemon process */
stop_vrrp();
exit(0);
}