service.c revision 4a62ed78e6fb17876e5db7280580897d55e7a4b2
951N/A/* Copyright (c) 2005-2017 Dovecot authors, see the included COPYING file */
951N/A
951N/A#include "common.h"
951N/A#include "ioloop.h"
951N/A#include "array.h"
951N/A#include "aqueue.h"
951N/A#include "hash.h"
951N/A#include "str.h"
951N/A#include "net.h"
951N/A#include "master-service.h"
951N/A#include "master-service-settings.h"
951N/A#include "service.h"
951N/A#include "service-anvil.h"
951N/A#include "service-process.h"
951N/A#include "service-monitor.h"
951N/A
951N/A#include <unistd.h>
951N/A#include <signal.h>
951N/A
951N/A#define SERVICE_DIE_TIMEOUT_MSECS (1000*6)
951N/A#define SERVICE_LOGIN_NOTIFY_MIN_INTERVAL_SECS 2
951N/A
951N/AHASH_TABLE_TYPE(pid_process) service_pids;
951N/A
951N/Avoid service_error(struct service *service, const char *format, ...)
951N/A{
951N/A va_list args;
951N/A
951N/A va_start(args, format);
951N/A i_error("service(%s): %s", service->set->name,
951N/A t_strdup_vprintf(format, args));
951N/A va_end(args);
951N/A}
951N/A
951N/Astatic struct service_listener *
951N/Aservice_create_file_listener(struct service *service,
951N/A enum service_listener_type type,
951N/A const struct file_listener_settings *set,
951N/A const char **error_r)
951N/A{
951N/A struct service_listener *l;
951N/A const char *set_name;
951N/A gid_t gid;
951N/A
951N/A l = p_new(service->list->pool, struct service_listener, 1);
951N/A l->service = service;
951N/A l->type = type;
951N/A l->fd = -1;
951N/A l->set.fileset.set = set;
951N/A l->name = strrchr(set->path, '/');
951N/A if (l->name != NULL)
951N/A l->name++;
958N/A else
951N/A l->name = set->path;
951N/A
968N/A if (get_uidgid(set->user, &l->set.fileset.uid, &gid, error_r) < 0)
951N/A set_name = "user";
951N/A else if (get_gid(set->group, &l->set.fileset.gid, error_r) < 0)
951N/A set_name = "group";
951N/A else
951N/A return l;
951N/A
951N/A *error_r = t_strdup_printf(
951N/A "%s (See service %s { %s_listener %s { %s } } setting)",
951N/A *error_r, service->set->name,
951N/A type == SERVICE_LISTENER_UNIX ? "unix" : "fifo",
951N/A set->path, set_name);
951N/A return NULL;
951N/A}
951N/A
951N/Astatic int
951N/Aresolve_ip(const char *address, const struct ip_addr **ips_r,
951N/A unsigned int *ips_count_r, const char **error_r)
951N/A{
951N/A struct ip_addr *ip_list;
951N/A unsigned int ips_count;
951N/A int ret;
951N/A
951N/A if (address == NULL || strcmp(address, "*") == 0) {
951N/A /* IPv4 any */
951N/A ip_list = t_new(struct ip_addr, 1);
951N/A *ip_list = net_ip4_any;
951N/A *ips_r = ip_list;
951N/A *ips_count_r = 1;
951N/A return 0;
951N/A }
951N/A
951N/A if (strcmp(address, "::") == 0 || strcmp(address, "[::]") == 0) {
951N/A /* IPv6 any */
951N/A ip_list = t_new(struct ip_addr, 1);
951N/A *ip_list = net_ip6_any;
951N/A *ips_r = ip_list;
951N/A *ips_count_r = 1;
951N/A return 0;
951N/A }
951N/A
951N/A /* Return the first IP if there happens to be multiple. */
951N/A ret = net_gethostbyname(address, &ip_list, &ips_count);
951N/A if (ret != 0) {
951N/A *error_r = t_strdup_printf("Can't resolve address %s: %s",
951N/A address, net_gethosterror(ret));
951N/A return -1;
951N/A }
951N/A
951N/A if (ips_count < 1) {
951N/A *error_r = t_strdup_printf("No IPs for address: %s", address);
951N/A return -1;
951N/A }
951N/A
951N/A *ips_r = ip_list;
951N/A *ips_count_r = ips_count;
951N/A return 0;
951N/A}
951N/A
951N/Astatic struct service_listener *
951N/Aservice_create_one_inet_listener(struct service *service,
951N/A const struct inet_listener_settings *set,
951N/A const char *address, const struct ip_addr *ip)
951N/A{
951N/A struct service_listener *l;
951N/A
951N/A i_assert(set->port != 0);
951N/A
951N/A l = p_new(service->list->pool, struct service_listener, 1);
951N/A l->service = service;
951N/A l->type = SERVICE_LISTENER_INET;
951N/A l->fd = -1;
951N/A l->set.inetset.set = set;
951N/A l->set.inetset.ip = *ip;
951N/A l->inet_address = p_strdup(service->list->pool, address);
951N/A l->name = set->name;
951N/A
951N/A return l;
951N/A}
951N/A
951N/Astatic int
951N/Aservice_create_inet_listeners(struct service *service,
951N/A const struct inet_listener_settings *set,
951N/A const char **error_r)
951N/A{
951N/A static struct service_listener *l;
951N/A const char *const *tmp, *addresses;
951N/A const struct ip_addr *ips;
951N/A unsigned int i, ips_count;
951N/A bool ssl_disabled = strcmp(service->set->master_set->ssl, "no") == 0;
951N/A
951N/A if (set->port == 0) {
951N/A /* disabled */
951N/A return 0;
951N/A }
951N/A
951N/A if (*set->address != '\0')
951N/A addresses = set->address;
951N/A else {
951N/A /* use the default listen address */
951N/A addresses = service->set->master_set->listen;
951N/A }
951N/A
951N/A tmp = t_strsplit_spaces(addresses, ", ");
951N/A for (; *tmp != NULL; tmp++) {
951N/A const char *address = *tmp;
951N/A
951N/A if (set->ssl && ssl_disabled)
951N/A continue;
951N/A
951N/A if (resolve_ip(address, &ips, &ips_count, error_r) < 0)
951N/A return -1;
951N/A
951N/A for (i = 0; i < ips_count; i++) {
951N/A l = service_create_one_inet_listener(service, set,
951N/A address, &ips[i]);
951N/A array_append(&service->listeners, &l, 1);
951N/A }
951N/A service->have_inet_listeners = TRUE;
951N/A }
951N/A return 0;
951N/A}
951N/A
951N/Astatic int service_get_groups(const char *groups, pool_t pool,
951N/A const char **gids_r, const char **error_r)
951N/A{
951N/A const char *const *tmp;
951N/A string_t *str;
951N/A gid_t gid;
951N/A
951N/A str = t_str_new(64);
951N/A for (tmp = t_strsplit(groups, ","); *tmp != NULL; tmp++) {
951N/A if (get_gid(*tmp, &gid, error_r) < 0)
951N/A return -1;
951N/A
951N/A if (str_len(str) > 0)
951N/A str_append_c(str, ',');
951N/A str_append(str, dec2str(gid));
951N/A }
951N/A *gids_r = p_strdup(pool, str_c(str));
951N/A return 0;
951N/A}
951N/A
951N/Astatic struct service *
951N/Aservice_create(pool_t pool, const struct service_settings *set,
951N/A struct service_list *service_list, const char **error_r)
951N/A{
951N/A struct file_listener_settings *const *unix_listeners;
951N/A struct file_listener_settings *const *fifo_listeners;
951N/A struct inet_listener_settings *const *inet_listeners;
951N/A struct service *service;
951N/A struct service_listener *l;
951N/A unsigned int i, unix_count, fifo_count, inet_count;
951N/A
951N/A service = p_new(pool, struct service, 1);
951N/A service->list = service_list;
951N/A service->set = set;
951N/A service->throttle_secs = SERVICE_STARTUP_FAILURE_THROTTLE_MIN_SECS;
968N/A
951N/A service->client_limit = set->client_limit != 0 ? set->client_limit :
951N/A set->master_set->default_client_limit;
951N/A if (set->service_count > 0 &&
951N/A service->client_limit > set->service_count)
951N/A service->client_limit = set->service_count;
951N/A
951N/A service->vsz_limit = set->vsz_limit != (uoff_t)-1 ? set->vsz_limit :
951N/A set->master_set->default_vsz_limit;
951N/A service->idle_kill = set->idle_kill != 0 ? set->idle_kill :
951N/A set->master_set->default_idle_kill;
951N/A service->type = service->set->parsed_type;
951N/A
951N/A if (set->process_limit == 0) {
951N/A /* use default */
951N/A service->process_limit =
951N/A set->master_set->default_process_limit;
951N/A } else {
951N/A service->process_limit = set->process_limit;
951N/A }
951N/A
951N/A /* default gid to user's primary group */
951N/A if (get_uidgid(set->user, &service->uid, &service->gid, error_r) < 0) {
951N/A switch (set->user_default) {
951N/A case SERVICE_USER_DEFAULT_NONE:
951N/A *error_r = t_strdup_printf(
951N/A "%s (See service %s { user } setting)",
951N/A *error_r, set->name);
951N/A break;
951N/A case SERVICE_USER_DEFAULT_INTERNAL:
951N/A *error_r = t_strconcat(*error_r,
951N/A " (See default_internal_user setting)", NULL);
951N/A break;
951N/A case SERVICE_USER_DEFAULT_LOGIN:
958N/A *error_r = t_strconcat(*error_r,
951N/A " (See default_login_user setting)", NULL);
951N/A break;
951N/A }
951N/A return NULL;
951N/A }
951N/A if (*set->group != '\0') {
951N/A if (get_gid(set->group, &service->gid, error_r) < 0) {
951N/A *error_r = t_strdup_printf(
951N/A "%s (See service %s { group } setting)",
951N/A *error_r, set->name);
951N/A return NULL;
951N/A }
951N/A }
951N/A if (get_gid(set->privileged_group, &service->privileged_gid,
951N/A error_r) < 0) {
951N/A *error_r = t_strdup_printf(
951N/A "%s (See service %s { privileged_group } setting)",
951N/A *error_r, set->name);
951N/A return NULL;
951N/A }
951N/A
951N/A if (*set->extra_groups != '\0') {
951N/A if (service_get_groups(set->extra_groups, pool,
951N/A &service->extra_gids, error_r) < 0) {
951N/A *error_r = t_strdup_printf(
951N/A "%s (See service %s { extra_groups } setting)",
951N/A *error_r, set->name);
951N/A return NULL;
951N/A }
951N/A }
951N/A
951N/A /* set these later, so if something fails we don't have to worry about
951N/A closing them */
951N/A service->log_fd[0] = -1;
951N/A service->log_fd[1] = -1;
951N/A service->status_fd[0] = -1;
951N/A service->status_fd[1] = -1;
951N/A service->master_dead_pipe_fd[0] = -1;
951N/A service->master_dead_pipe_fd[1] = -1;
951N/A service->log_process_internal_fd = -1;
951N/A service->login_notify_fd = -1;
951N/A
951N/A if (service->type == SERVICE_TYPE_ANVIL) {
951N/A service->status_fd[0] = service_anvil_global->status_fd[0];
951N/A service->status_fd[1] = service_anvil_global->status_fd[1];
951N/A }
951N/A
951N/A if (array_is_created(&set->unix_listeners))
951N/A unix_listeners = array_get(&set->unix_listeners, &unix_count);
951N/A else {
951N/A unix_listeners = NULL;
951N/A unix_count = 0;
951N/A }
951N/A if (array_is_created(&set->fifo_listeners))
951N/A fifo_listeners = array_get(&set->fifo_listeners, &fifo_count);
951N/A else {
951N/A fifo_listeners = NULL;
951N/A fifo_count = 0;
951N/A }
951N/A if (array_is_created(&set->inet_listeners))
951N/A inet_listeners = array_get(&set->inet_listeners, &inet_count);
951N/A else {
951N/A inet_listeners = NULL;
951N/A inet_count = 0;
951N/A }
951N/A
951N/A if (unix_count == 0 && service->type == SERVICE_TYPE_CONFIG) {
951N/A *error_r = "Service must have unix listeners";
951N/A return NULL;
951N/A }
951N/A
951N/A p_array_init(&service->listeners, pool,
951N/A unix_count + fifo_count + inet_count);
951N/A
951N/A for (i = 0; i < unix_count; i++) {
951N/A if (unix_listeners[i]->mode == 0) {
951N/A /* disabled */
951N/A continue;
951N/A }
951N/A
951N/A l = service_create_file_listener(service, SERVICE_LISTENER_UNIX,
951N/A unix_listeners[i], error_r);
951N/A if (l == NULL)
951N/A return NULL;
951N/A array_append(&service->listeners, &l, 1);
951N/A }
951N/A for (i = 0; i < fifo_count; i++) {
951N/A if (fifo_listeners[i]->mode == 0) {
951N/A /* disabled */
951N/A continue;
951N/A }
951N/A
951N/A l = service_create_file_listener(service, SERVICE_LISTENER_FIFO,
951N/A fifo_listeners[i], error_r);
951N/A if (l == NULL)
951N/A return NULL;
951N/A array_append(&service->listeners, &l, 1);
951N/A }
951N/A for (i = 0; i < inet_count; i++) {
951N/A if (service_create_inet_listeners(service, inet_listeners[i],
951N/A error_r) < 0)
951N/A return NULL;
951N/A }
951N/A
951N/A service->executable = set->executable;
951N/A if (access(t_strcut(service->executable, ' '), X_OK) < 0) {
951N/A *error_r = t_strdup_printf("access(%s) failed: %m",
951N/A t_strcut(service->executable, ' '));
951N/A return NULL;
951N/A }
951N/A return service;
951N/A}
951N/A
951N/Astruct service *
951N/Aservice_lookup(struct service_list *service_list, const char *name)
951N/A{
951N/A struct service *const *services;
951N/A
951N/A array_foreach(&service_list->services, services) {
951N/A struct service *service = *services;
951N/A
951N/A if (strcmp(service->set->name, name) == 0)
951N/A return service;
951N/A }
951N/A return NULL;
951N/A}
951N/A
951N/Astruct service *
951N/Aservice_lookup_type(struct service_list *service_list, enum service_type type)
951N/A{
951N/A struct service *const *services;
951N/A
951N/A array_foreach(&service_list->services, services) {
951N/A struct service *service = *services;
968N/A
968N/A if (service->type == type)
968N/A return service;
968N/A }
968N/A return NULL;
968N/A}
968N/A
968N/Astatic bool service_want(struct service_settings *set)
968N/A{
968N/A char *const *proto;
951N/A
951N/A if (*set->executable == '\0') {
951N/A /* silently allow service {} blocks for disabled extensions
951N/A (e.g. service managesieve {} block without pigeonhole
951N/A installed) */
951N/A return FALSE;
951N/A }
951N/A
951N/A if (*set->protocol == '\0')
951N/A return TRUE;
951N/A
951N/A for (proto = set->master_set->protocols_split; *proto != NULL; proto++) {
951N/A if (strcmp(*proto, set->protocol) == 0)
951N/A return TRUE;
951N/A }
951N/A return FALSE;
951N/A}
951N/A
968N/Astatic int
951N/Aservices_create_real(const struct master_settings *set, pool_t pool,
951N/A struct service_list **services_r, const char **error_r)
951N/A{
951N/A struct service_list *service_list;
951N/A struct service *service;
951N/A struct service_settings *const *service_settings;
951N/A const char *error;
951N/A unsigned int i, count;
951N/A
951N/A service_list = p_new(pool, struct service_list, 1);
951N/A service_list->refcount = 1;
951N/A service_list->pool = pool;
951N/A service_list->service_set = master_service_settings_get(master_service);
951N/A service_list->set_pool = master_service_settings_detach(master_service);
951N/A service_list->set = set;
951N/A service_list->master_log_fd[0] = -1;
951N/A service_list->master_log_fd[1] = -1;
951N/A service_list->master_fd = -1;
951N/A
951N/A service_settings = array_get(&set->services, &count);
951N/A p_array_init(&service_list->services, pool, count);
951N/A
951N/A for (i = 0; i < count; i++) {
951N/A if (!service_want(service_settings[i]))
951N/A continue;
968N/A service = service_create(pool, service_settings[i],
951N/A service_list, &error);
951N/A if (service == NULL) {
951N/A *error_r = t_strdup_printf("service(%s) %s",
951N/A service_settings[i]->name, error);
951N/A return -1;
951N/A }
951N/A
951N/A switch (service->type) {
951N/A case SERVICE_TYPE_LOG:
951N/A if (service_list->log != NULL) {
951N/A *error_r = "Multiple log services specified";
951N/A return -1;
951N/A }
951N/A service_list->log = service;
951N/A break;
951N/A case SERVICE_TYPE_CONFIG:
951N/A if (service_list->config != NULL) {
951N/A *error_r = "Multiple config services specified";
951N/A return -1;
951N/A }
951N/A service_list->config = service;
951N/A break;
951N/A case SERVICE_TYPE_ANVIL:
951N/A if (service_list->anvil != NULL) {
951N/A *error_r = "Multiple anvil services specified";
951N/A return -1;
951N/A }
951N/A service_list->anvil = service;
951N/A break;
951N/A default:
951N/A break;
951N/A }
951N/A
951N/A array_append(&service_list->services, &service, 1);
951N/A }
951N/A
951N/A if (service_list->log == NULL) {
951N/A *error_r = "log service not specified";
951N/A return -1;
951N/A }
951N/A
951N/A if (service_list->config == NULL) {
951N/A *error_r = "config process not specified";
951N/A return -1;
951N/A }
951N/A
951N/A *services_r = service_list;
951N/A return 0;
951N/A}
951N/A
951N/Aint services_create(const struct master_settings *set,
951N/A struct service_list **services_r, const char **error_r)
951N/A{
951N/A pool_t pool;
951N/A
951N/A pool = pool_alloconly_create("services pool", 32768);
951N/A if (services_create_real(set, pool, services_r, error_r) < 0) {
951N/A pool_unref(&pool);
951N/A return -1;
951N/A }
951N/A return 0;
951N/A}
951N/A
951N/Aunsigned int service_signal(struct service *service, int signo,
951N/A unsigned int *uninitialized_count_r)
951N/A{
951N/A struct service_process *process = service->processes;
951N/A unsigned int count = 0;
951N/A
951N/A *uninitialized_count_r = 0;
951N/A for (; process != NULL; process = process->next) {
951N/A i_assert(process->service == service);
951N/A
951N/A if (!SERVICE_PROCESS_IS_INITIALIZED(process) &&
951N/A signo != SIGKILL) {
951N/A /* too early to signal it */
951N/A *uninitialized_count_r += 1;
951N/A continue;
951N/A }
951N/A
951N/A if (kill(process->pid, signo) == 0)
951N/A count++;
951N/A else if (errno != ESRCH) {
951N/A service_error(service, "kill(%s, %d) failed: %m",
951N/A dec2str(process->pid), signo);
951N/A }
951N/A }
951N/A if (count > 0) {
951N/A i_warning("Sent %s to %u %s processes",
951N/A signo == SIGTERM ? "SIGTERM" : "SIGKILL",
951N/A count, service->set->name);
951N/A }
951N/A return count;
951N/A}
968N/A
951N/Astatic void service_login_notify_send(struct service *service)
951N/A{
951N/A unsigned int uninitialized_count;
951N/A
951N/A service->last_login_notify_time = ioloop_time;
951N/A if (service->to_login_notify != NULL)
951N/A timeout_remove(&service->to_login_notify);
951N/A
951N/A service_signal(service, SIGUSR1, &uninitialized_count);
951N/A}
951N/A
951N/Astatic void service_login_notify_timeout(struct service *service)
968N/A{
951N/A service_login_notify_send(service);
951N/A}
951N/A
951N/Avoid service_login_notify(struct service *service, bool all_processes_full)
951N/A{
951N/A enum master_login_state state;
951N/A int diff;
951N/A
951N/A if (service->last_login_full_notify == all_processes_full ||
951N/A service->login_notify_fd == -1)
951N/A return;
951N/A
951N/A /* change the state always immediately. it's cheap. */
951N/A service->last_login_full_notify = all_processes_full;
951N/A state = all_processes_full ? MASTER_LOGIN_STATE_FULL :
951N/A MASTER_LOGIN_STATE_NONFULL;
951N/A if (lseek(service->login_notify_fd, state, SEEK_SET) < 0)
951N/A service_error(service, "lseek(notify fd) failed: %m");
951N/A
951N/A /* but don't send signal to processes too often */
951N/A diff = ioloop_time - service->last_login_notify_time;
951N/A if (diff < SERVICE_LOGIN_NOTIFY_MIN_INTERVAL_SECS) {
951N/A if (service->to_login_notify != NULL)
951N/A return;
951N/A
951N/A diff = (SERVICE_LOGIN_NOTIFY_MIN_INTERVAL_SECS - diff) * 1000;
951N/A service->to_login_notify =
951N/A timeout_add(diff, service_login_notify_timeout,
951N/A service);
951N/A } else {
951N/A service_login_notify_send(service);
951N/A }
951N/A}
951N/A
951N/Astatic void services_kill_timeout(struct service_list *service_list)
951N/A{
951N/A struct service *const *services, *log_service;
951N/A unsigned int service_uninitialized, uninitialized_count = 0;
951N/A unsigned int signal_count = 0;
951N/A int sig;
951N/A
951N/A if (!service_list->sigterm_sent)
951N/A sig = SIGTERM;
951N/A else
951N/A sig = SIGKILL;
951N/A service_list->sigterm_sent = TRUE;
951N/A
951N/A i_warning("Processes aren't dying after reload, sending %s.",
951N/A sig == SIGTERM ? "SIGTERM" : "SIGKILL");
951N/A
951N/A log_service = NULL;
951N/A array_foreach(&service_list->services, services) {
951N/A struct service *service = *services;
951N/A
951N/A if (service->type == SERVICE_TYPE_LOG)
951N/A log_service = service;
951N/A else {
951N/A signal_count += service_signal(service, sig,
951N/A &service_uninitialized);
951N/A uninitialized_count += service_uninitialized;
951N/A }
951N/A }
951N/A if (log_service == NULL) {
951N/A /* log service doesn't exist - shouldn't really happen */
951N/A } else if (signal_count > 0 || uninitialized_count > 0) {
951N/A /* kill log service later so the last remaining processes
951N/A can still have a chance of logging something */
951N/A } else {
951N/A if (!service_list->sigterm_sent_to_log)
951N/A sig = SIGTERM;
951N/A else
951N/A sig = SIGKILL;
951N/A service_list->sigterm_sent_to_log = TRUE;
951N/A signal_count += service_signal(log_service, sig, &service_uninitialized);
951N/A uninitialized_count += service_uninitialized;
951N/A }
951N/A}
951N/A
951N/Avoid services_destroy(struct service_list *service_list, bool wait)
951N/A{
951N/A /* make sure we log if child processes died unexpectedly */
951N/A service_list->destroying = TRUE;
951N/A services_monitor_reap_children();
951N/A
951N/A services_monitor_stop(service_list, wait);
951N/A
951N/A if (service_list->refcount > 1 &&
951N/A service_list->service_set->shutdown_clients) {
951N/A service_list->to_kill =
951N/A timeout_add(SERVICE_DIE_TIMEOUT_MSECS,
951N/A services_kill_timeout, service_list);
951N/A }
951N/A
951N/A service_list->destroyed = TRUE;
951N/A service_list_unref(service_list);
951N/A}
951N/A
951N/Avoid service_list_ref(struct service_list *service_list)
951N/A{
951N/A i_assert(service_list->refcount > 0);
951N/A service_list->refcount++;
951N/A}
951N/A
951N/Avoid service_list_unref(struct service_list *service_list)
951N/A{
951N/A i_assert(service_list->refcount > 0);
951N/A if (--service_list->refcount > 0)
951N/A return;
951N/A
951N/A if (service_list->to_kill != NULL)
951N/A timeout_remove(&service_list->to_kill);
951N/A pool_unref(&service_list->set_pool);
951N/A pool_unref(&service_list->pool);
951N/A}
951N/A
951N/Aconst char *services_get_config_socket_path(struct service_list *service_list)
951N/A{
951N/A struct service_listener *const *listeners;
951N/A unsigned int count;
951N/A
951N/A listeners = array_get(&service_list->config->listeners, &count);
951N/A i_assert(count > 0);
951N/A return listeners[0]->set.fileset.set->path;
951N/A}
951N/A
951N/Astatic void service_throttle_timeout(struct service *service)
951N/A{
951N/A timeout_remove(&service->to_throttle);
951N/A service_monitor_listen_start(service);
951N/A}
951N/A
951N/Astatic void service_drop_listener_connections(struct service *service)
951N/A{
951N/A struct service_listener *const *listenerp;
951N/A int fd;
951N/A
951N/A array_foreach(&service->listeners, listenerp) {
951N/A switch ((*listenerp)->type) {
951N/A case SERVICE_LISTENER_UNIX:
951N/A case SERVICE_LISTENER_INET:
951N/A if ((*listenerp)->fd == -1) {
951N/A /* already stopped listening */
951N/A break;
951N/A }
951N/A while ((fd = net_accept((*listenerp)->fd,
951N/A NULL, NULL)) >= 0)
951N/A i_close_fd(&fd);
951N/A break;
951N/A case SERVICE_LISTENER_FIFO:
951N/A break;
951N/A }
951N/A }
951N/A}
951N/A
951N/Avoid service_throttle(struct service *service, unsigned int secs)
951N/A{
951N/A if (service->to_throttle != NULL || service->list->destroyed)
951N/A return;
951N/A
951N/A if (service->processes == NULL)
951N/A service_drop_listener_connections(service);
951N/A
951N/A service_monitor_listen_stop(service);
951N/A service->to_throttle = timeout_add(secs * 1000,
951N/A service_throttle_timeout, service);
951N/A}
951N/A
951N/Avoid services_throttle_time_sensitives(struct service_list *list,
951N/A unsigned int secs)
951N/A{
951N/A struct service *const *services;
951N/A
951N/A array_foreach(&list->services, services) {
951N/A struct service *service = *services;
951N/A
951N/A if (service->type == SERVICE_TYPE_UNKNOWN)
951N/A service_throttle(service, secs);
951N/A }
951N/A}
951N/A
951N/Avoid service_pids_init(void)
951N/A{
951N/A hash_table_create_direct(&service_pids, default_pool, 0);
951N/A}
951N/A
951N/Avoid service_pids_deinit(void)
951N/A{
951N/A struct hash_iterate_context *iter;
951N/A void *key;
951N/A struct service_process *process;
951N/A
951N/A /* free all child process information */
951N/A iter = hash_table_iterate_init(service_pids);
951N/A while (hash_table_iterate(iter, service_pids, &key, &process))
951N/A service_process_destroy(process);
951N/A hash_table_iterate_deinit(&iter);
951N/A hash_table_destroy(&service_pids);
951N/A}
951N/A