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authorKay Sievers <kay@vrfy.org>2012-04-11 12:59:52 +0200
committerKay Sievers <kay@vrfy.org>2012-04-11 16:03:51 +0200
commitb30e2f4c18ad81b04e4314fd191a5d458553773c (patch)
treede15b901a08d681a7a1e95c7a2d692b0ec181708 /src/core/service.c
parent9543ad166338a7bef8718070f11465df4b9badd7 (diff)
move libsystemd_core.la sources into core/
Diffstat (limited to 'src/core/service.c')
-rw-r--r--src/core/service.c3797
1 files changed, 3797 insertions, 0 deletions
diff --git a/src/core/service.c b/src/core/service.c
new file mode 100644
index 0000000000..bf2e0a9d98
--- /dev/null
+++ b/src/core/service.c
@@ -0,0 +1,3797 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <signal.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/reboot.h>
+
+#include "manager.h"
+#include "unit.h"
+#include "service.h"
+#include "load-fragment.h"
+#include "load-dropin.h"
+#include "log.h"
+#include "strv.h"
+#include "unit-name.h"
+#include "dbus-service.h"
+#include "special.h"
+#include "bus-errors.h"
+#include "exit-status.h"
+#include "def.h"
+#include "util.h"
+#include "utf8.h"
+
+#ifdef HAVE_SYSV_COMPAT
+
+#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
+
+typedef enum RunlevelType {
+ RUNLEVEL_UP,
+ RUNLEVEL_DOWN,
+ RUNLEVEL_SYSINIT
+} RunlevelType;
+
+static const struct {
+ const char *path;
+ const char *target;
+ const RunlevelType type;
+} rcnd_table[] = {
+ /* Standard SysV runlevels for start-up */
+ { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
+ { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
+ { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
+ { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
+ { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
+
+#ifdef TARGET_SUSE
+ /* SUSE style boot.d */
+ { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
+#endif
+
+#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+ /* Debian style rcS.d */
+ { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
+#endif
+
+ /* Standard SysV runlevels for shutdown */
+ { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
+ { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
+
+ /* Note that the order here matters, as we read the
+ directories in this order, and we want to make sure that
+ sysv_start_priority is known when we first load the
+ unit. And that value we only know from S links. Hence
+ UP/SYSINIT must be read before DOWN */
+};
+
+#define RUNLEVELS_UP "12345"
+/* #define RUNLEVELS_DOWN "06" */
+#define RUNLEVELS_BOOT "bBsS"
+#endif
+
+static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
+ [SERVICE_DEAD] = UNIT_INACTIVE,
+ [SERVICE_START_PRE] = UNIT_ACTIVATING,
+ [SERVICE_START] = UNIT_ACTIVATING,
+ [SERVICE_START_POST] = UNIT_ACTIVATING,
+ [SERVICE_RUNNING] = UNIT_ACTIVE,
+ [SERVICE_EXITED] = UNIT_ACTIVE,
+ [SERVICE_RELOAD] = UNIT_RELOADING,
+ [SERVICE_STOP] = UNIT_DEACTIVATING,
+ [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
+ [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
+ [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
+ [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
+ [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
+ [SERVICE_FAILED] = UNIT_FAILED,
+ [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
+};
+
+static void service_init(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+ assert(u->load_state == UNIT_STUB);
+
+ s->timeout_usec = DEFAULT_TIMEOUT_USEC;
+ s->restart_usec = DEFAULT_RESTART_USEC;
+
+ s->watchdog_watch.type = WATCH_INVALID;
+
+ s->timer_watch.type = WATCH_INVALID;
+#ifdef HAVE_SYSV_COMPAT
+ s->sysv_start_priority = -1;
+ s->sysv_start_priority_from_rcnd = -1;
+#endif
+ s->socket_fd = -1;
+ s->guess_main_pid = true;
+
+ exec_context_init(&s->exec_context);
+
+ RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
+
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+}
+
+static void service_unwatch_control_pid(Service *s) {
+ assert(s);
+
+ if (s->control_pid <= 0)
+ return;
+
+ unit_unwatch_pid(UNIT(s), s->control_pid);
+ s->control_pid = 0;
+}
+
+static void service_unwatch_main_pid(Service *s) {
+ assert(s);
+
+ if (s->main_pid <= 0)
+ return;
+
+ unit_unwatch_pid(UNIT(s), s->main_pid);
+ s->main_pid = 0;
+}
+
+static void service_unwatch_pid_file(Service *s) {
+ if (!s->pid_file_pathspec)
+ return;
+
+ log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
+ path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
+ path_spec_done(s->pid_file_pathspec);
+ free(s->pid_file_pathspec);
+ s->pid_file_pathspec = NULL;
+}
+
+static int service_set_main_pid(Service *s, pid_t pid) {
+ pid_t ppid;
+
+ assert(s);
+
+ if (pid <= 1)
+ return -EINVAL;
+
+ if (pid == getpid())
+ return -EINVAL;
+
+ s->main_pid = pid;
+ s->main_pid_known = true;
+
+ if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
+ log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
+ UNIT(s)->id, (unsigned long) pid);
+
+ s->main_pid_alien = true;
+ } else
+ s->main_pid_alien = false;
+
+ exec_status_start(&s->main_exec_status, pid);
+
+ return 0;
+}
+
+static void service_close_socket_fd(Service *s) {
+ assert(s);
+
+ if (s->socket_fd < 0)
+ return;
+
+ close_nointr_nofail(s->socket_fd);
+ s->socket_fd = -1;
+}
+
+static void service_connection_unref(Service *s) {
+ assert(s);
+
+ if (!UNIT_DEREF(s->accept_socket))
+ return;
+
+ socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
+ unit_ref_unset(&s->accept_socket);
+}
+
+static void service_stop_watchdog(Service *s) {
+ assert(s);
+
+ unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
+ s->watchdog_timestamp.realtime = 0;
+ s->watchdog_timestamp.monotonic = 0;
+}
+
+static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
+
+static void service_handle_watchdog(Service *s) {
+ usec_t offset;
+ int r;
+
+ assert(s);
+
+ if (s->watchdog_usec == 0)
+ return;
+
+ offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
+ if (offset >= s->watchdog_usec) {
+ log_error("%s watchdog timeout!", UNIT(s)->id);
+ service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
+ return;
+ }
+
+ r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
+ if (r < 0)
+ log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
+}
+
+static void service_reset_watchdog(Service *s) {
+ assert(s);
+
+ dual_timestamp_get(&s->watchdog_timestamp);
+ service_handle_watchdog(s);
+}
+
+static void service_done(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ free(s->pid_file);
+ s->pid_file = NULL;
+
+#ifdef HAVE_SYSV_COMPAT
+ free(s->sysv_path);
+ s->sysv_path = NULL;
+
+ free(s->sysv_runlevels);
+ s->sysv_runlevels = NULL;
+#endif
+
+ free(s->status_text);
+ s->status_text = NULL;
+
+ exec_context_done(&s->exec_context);
+ exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
+ s->control_command = NULL;
+ s->main_command = NULL;
+
+ /* This will leak a process, but at least no memory or any of
+ * our resources */
+ service_unwatch_main_pid(s);
+ service_unwatch_control_pid(s);
+ service_unwatch_pid_file(s);
+
+ if (s->bus_name) {
+ unit_unwatch_bus_name(u, s->bus_name);
+ free(s->bus_name);
+ s->bus_name = NULL;
+ }
+
+ service_close_socket_fd(s);
+ service_connection_unref(s);
+
+ unit_ref_unset(&s->accept_socket);
+
+ service_stop_watchdog(s);
+
+ unit_unwatch_timer(u, &s->timer_watch);
+}
+
+#ifdef HAVE_SYSV_COMPAT
+static char *sysv_translate_name(const char *name) {
+ char *r;
+
+ if (!(r = new(char, strlen(name) + sizeof(".service"))))
+ return NULL;
+
+#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+ if (endswith(name, ".sh"))
+ /* Drop Debian-style .sh suffix */
+ strcpy(stpcpy(r, name) - 3, ".service");
+#endif
+#ifdef TARGET_SUSE
+ if (startswith(name, "boot."))
+ /* Drop SuSE-style boot. prefix */
+ strcpy(stpcpy(r, name + 5), ".service");
+#endif
+#ifdef TARGET_FRUGALWARE
+ if (startswith(name, "rc."))
+ /* Drop Frugalware-style rc. prefix */
+ strcpy(stpcpy(r, name + 3), ".service");
+#endif
+ else
+ /* Normal init scripts */
+ strcpy(stpcpy(r, name), ".service");
+
+ return r;
+}
+
+static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
+
+ /* We silently ignore the $ prefix here. According to the LSB
+ * spec it simply indicates whether something is a
+ * standardized name or a distribution-specific one. Since we
+ * just follow what already exists and do not introduce new
+ * uses or names we don't care who introduced a new name. */
+
+ static const char * const table[] = {
+ /* LSB defined facilities */
+ "local_fs", SPECIAL_LOCAL_FS_TARGET,
+#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
+#else
+ /* Due to unfortunate name selection in Mandriva,
+ * $network is provided by network-up which is ordered
+ * after network which actually starts interfaces.
+ * To break the loop, just ignore it */
+ "network", SPECIAL_NETWORK_TARGET,
+#endif
+ "named", SPECIAL_NSS_LOOKUP_TARGET,
+ "portmap", SPECIAL_RPCBIND_TARGET,
+ "remote_fs", SPECIAL_REMOTE_FS_TARGET,
+ "syslog", SPECIAL_SYSLOG_TARGET,
+ "time", SPECIAL_TIME_SYNC_TARGET,
+
+ /* common extensions */
+ "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
+ "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
+ "null", NULL,
+
+#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+ "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
+#endif
+
+#ifdef TARGET_FEDORA
+ "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
+ "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
+ "httpd", SPECIAL_HTTP_DAEMON_TARGET,
+#endif
+
+#ifdef TARGET_SUSE
+ "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
+#endif
+ };
+
+ unsigned i;
+ char *r;
+ const char *n;
+
+ assert(name);
+ assert(_r);
+
+ n = *name == '$' ? name + 1 : name;
+
+ for (i = 0; i < ELEMENTSOF(table); i += 2) {
+
+ if (!streq(table[i], n))
+ continue;
+
+ if (!table[i+1])
+ return 0;
+
+ if (!(r = strdup(table[i+1])))
+ return -ENOMEM;
+
+ goto finish;
+ }
+
+ /* If we don't know this name, fallback heuristics to figure
+ * out whether something is a target or a service alias. */
+
+ if (*name == '$') {
+ if (!unit_prefix_is_valid(n))
+ return -EINVAL;
+
+ /* Facilities starting with $ are most likely targets */
+ r = unit_name_build(n, NULL, ".target");
+ } else if (filename && streq(name, filename))
+ /* Names equaling the file name of the services are redundant */
+ return 0;
+ else
+ /* Everything else we assume to be normal service names */
+ r = sysv_translate_name(n);
+
+ if (!r)
+ return -ENOMEM;
+
+finish:
+ *_r = r;
+
+ return 1;
+}
+
+static int sysv_fix_order(Service *s) {
+ Unit *other;
+ int r;
+
+ assert(s);
+
+ if (s->sysv_start_priority < 0)
+ return 0;
+
+ /* For each pair of services where at least one lacks a LSB
+ * header, we use the start priority value to order things. */
+
+ LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
+ Service *t;
+ UnitDependency d;
+ bool special_s, special_t;
+
+ t = SERVICE(other);
+
+ if (s == t)
+ continue;
+
+ if (UNIT(t)->load_state != UNIT_LOADED)
+ continue;
+
+ if (t->sysv_start_priority < 0)
+ continue;
+
+ /* If both units have modern headers we don't care
+ * about the priorities */
+ if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
+ (UNIT(t)->fragment_path || t->sysv_has_lsb))
+ continue;
+
+ special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
+ special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
+
+ if (special_t && !special_s)
+ d = UNIT_AFTER;
+ else if (special_s && !special_t)
+ d = UNIT_BEFORE;
+ else if (t->sysv_start_priority < s->sysv_start_priority)
+ d = UNIT_AFTER;
+ else if (t->sysv_start_priority > s->sysv_start_priority)
+ d = UNIT_BEFORE;
+ else
+ continue;
+
+ /* FIXME: Maybe we should compare the name here lexicographically? */
+
+ if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static ExecCommand *exec_command_new(const char *path, const char *arg1) {
+ ExecCommand *c;
+
+ if (!(c = new0(ExecCommand, 1)))
+ return NULL;
+
+ if (!(c->path = strdup(path))) {
+ free(c);
+ return NULL;
+ }
+
+ if (!(c->argv = strv_new(path, arg1, NULL))) {
+ free(c->path);
+ free(c);
+ return NULL;
+ }
+
+ return c;
+}
+
+static int sysv_exec_commands(Service *s) {
+ ExecCommand *c;
+
+ assert(s);
+ assert(s->sysv_path);
+
+ if (!(c = exec_command_new(s->sysv_path, "start")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
+
+ if (!(c = exec_command_new(s->sysv_path, "stop")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
+
+ if (!(c = exec_command_new(s->sysv_path, "reload")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
+
+ return 0;
+}
+
+static int service_load_sysv_path(Service *s, const char *path) {
+ FILE *f;
+ Unit *u;
+ unsigned line = 0;
+ int r;
+ enum {
+ NORMAL,
+ DESCRIPTION,
+ LSB,
+ LSB_DESCRIPTION
+ } state = NORMAL;
+ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
+ struct stat st;
+
+ assert(s);
+ assert(path);
+
+ u = UNIT(s);
+
+ if (!(f = fopen(path, "re"))) {
+ r = errno == ENOENT ? 0 : -errno;
+ goto finish;
+ }
+
+ zero(st);
+ if (fstat(fileno(f), &st) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ free(s->sysv_path);
+ if (!(s->sysv_path = strdup(path))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ s->sysv_mtime = timespec_load(&st.st_mtim);
+
+ if (null_or_empty(&st)) {
+ u->load_state = UNIT_MASKED;
+ r = 0;
+ goto finish;
+ }
+
+ while (!feof(f)) {
+ char l[LINE_MAX], *t;
+
+ if (!fgets(l, sizeof(l), f)) {
+ if (feof(f))
+ break;
+
+ r = -errno;
+ log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
+ goto finish;
+ }
+
+ line++;
+
+ t = strstrip(l);
+ if (*t != '#')
+ continue;
+
+ if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
+ state = LSB;
+ s->sysv_has_lsb = true;
+ continue;
+ }
+
+ if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
+ state = NORMAL;
+ continue;
+ }
+
+ t++;
+ t += strspn(t, WHITESPACE);
+
+ if (state == NORMAL) {
+
+ /* Try to parse Red Hat style chkconfig headers */
+
+ if (startswith_no_case(t, "chkconfig:")) {
+ int start_priority;
+ char runlevels[16], *k;
+
+ state = NORMAL;
+
+ if (sscanf(t+10, "%15s %i %*i",
+ runlevels,
+ &start_priority) != 2) {
+
+ log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
+ continue;
+ }
+
+ /* A start priority gathered from the
+ * symlink farms is preferred over the
+ * data from the LSB header. */
+ if (start_priority < 0 || start_priority > 99)
+ log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
+ else
+ s->sysv_start_priority = start_priority;
+
+ char_array_0(runlevels);
+ k = delete_chars(runlevels, WHITESPACE "-");
+
+ if (k[0]) {
+ char *d;
+
+ if (!(d = strdup(k))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(s->sysv_runlevels);
+ s->sysv_runlevels = d;
+ }
+
+ } else if (startswith_no_case(t, "description:")) {
+
+ size_t k = strlen(t);
+ char *d;
+ const char *j;
+
+ if (t[k-1] == '\\') {
+ state = DESCRIPTION;
+ t[k-1] = 0;
+ }
+
+ if ((j = strstrip(t+12)) && *j) {
+ if (!(d = strdup(j))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ } else
+ d = NULL;
+
+ free(chkconfig_description);
+ chkconfig_description = d;
+
+ } else if (startswith_no_case(t, "pidfile:")) {
+
+ char *fn;
+
+ state = NORMAL;
+
+ fn = strstrip(t+8);
+ if (!path_is_absolute(fn)) {
+ log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
+ continue;
+ }
+
+ if (!(fn = strdup(fn))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(s->pid_file);
+ s->pid_file = fn;
+ }
+
+ } else if (state == DESCRIPTION) {
+
+ /* Try to parse Red Hat style description
+ * continuation */
+
+ size_t k = strlen(t);
+ char *j;
+
+ if (t[k-1] == '\\')
+ t[k-1] = 0;
+ else
+ state = NORMAL;
+
+ if ((j = strstrip(t)) && *j) {
+ char *d = NULL;
+
+ if (chkconfig_description)
+ d = join(chkconfig_description, " ", j, NULL);
+ else
+ d = strdup(j);
+
+ if (!d) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(chkconfig_description);
+ chkconfig_description = d;
+ }
+
+ } else if (state == LSB || state == LSB_DESCRIPTION) {
+
+ if (startswith_no_case(t, "Provides:")) {
+ char *i, *w;
+ size_t z;
+
+ state = LSB;
+
+ FOREACH_WORD_QUOTED(w, z, t+9, i) {
+ char *n, *m;
+
+ if (!(n = strndup(w, z))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ r = sysv_translate_facility(n, file_name_from_path(path), &m);
+ free(n);
+
+ if (r < 0)
+ goto finish;
+
+ if (r == 0)
+ continue;
+
+ if (unit_name_to_type(m) == UNIT_SERVICE)
+ r = unit_add_name(u, m);
+ else
+ /* NB: SysV targets
+ * which are provided
+ * by a service are
+ * pulled in by the
+ * services, as an
+ * indication that the
+ * generic service is
+ * now available. This
+ * is strictly
+ * one-way. The
+ * targets do NOT pull
+ * in the SysV
+ * services! */
+ r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
+
+ if (r < 0)
+ log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
+
+ free(m);
+ }
+
+ } else if (startswith_no_case(t, "Required-Start:") ||
+ startswith_no_case(t, "Should-Start:") ||
+ startswith_no_case(t, "X-Start-Before:") ||
+ startswith_no_case(t, "X-Start-After:")) {
+ char *i, *w;
+ size_t z;
+
+ state = LSB;
+
+ FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
+ char *n, *m;
+
+ if (!(n = strndup(w, z))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ r = sysv_translate_facility(n, file_name_from_path(path), &m);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
+ free(n);
+ continue;
+ }
+
+ free(n);
+
+ if (r == 0)
+ continue;
+
+ r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
+
+ if (r < 0)
+ log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
+
+ free(m);
+ }
+ } else if (startswith_no_case(t, "Default-Start:")) {
+ char *k, *d;
+
+ state = LSB;
+
+ k = delete_chars(t+14, WHITESPACE "-");
+
+ if (k[0] != 0) {
+ if (!(d = strdup(k))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(s->sysv_runlevels);
+ s->sysv_runlevels = d;
+ }
+
+ } else if (startswith_no_case(t, "Description:")) {
+ char *d, *j;
+
+ state = LSB_DESCRIPTION;
+
+ if ((j = strstrip(t+12)) && *j) {
+ if (!(d = strdup(j))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ } else
+ d = NULL;
+
+ free(long_description);
+ long_description = d;
+
+ } else if (startswith_no_case(t, "Short-Description:")) {
+ char *d, *j;
+
+ state = LSB;
+
+ if ((j = strstrip(t+18)) && *j) {
+ if (!(d = strdup(j))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ } else
+ d = NULL;
+
+ free(short_description);
+ short_description = d;
+
+ } else if (state == LSB_DESCRIPTION) {
+
+ if (startswith(l, "#\t") || startswith(l, "# ")) {
+ char *j;
+
+ if ((j = strstrip(t)) && *j) {
+ char *d = NULL;
+
+ if (long_description)
+ d = join(long_description, " ", t, NULL);
+ else
+ d = strdup(j);
+
+ if (!d) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(long_description);
+ long_description = d;
+ }
+
+ } else
+ state = LSB;
+ }
+ }
+ }
+
+ if ((r = sysv_exec_commands(s)) < 0)
+ goto finish;
+ if (s->sysv_runlevels &&
+ chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
+ chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
+ /* Service has both boot and "up" runlevels
+ configured. Kill the "up" ones. */
+ delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
+ }
+
+ if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
+ /* If there a runlevels configured for this service
+ * but none of the standard ones, then we assume this
+ * is some special kind of service (which might be
+ * needed for early boot) and don't create any links
+ * to it. */
+
+ UNIT(s)->default_dependencies = false;
+
+ /* Don't timeout special services during boot (like fsck) */
+ s->timeout_usec = 0;
+ } else
+ s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
+
+ /* Special setting for all SysV services */
+ s->type = SERVICE_FORKING;
+ s->remain_after_exit = !s->pid_file;
+ s->guess_main_pid = false;
+ s->restart = SERVICE_RESTART_NO;
+ s->exec_context.ignore_sigpipe = false;
+
+ if (UNIT(s)->manager->sysv_console)
+ s->exec_context.std_output = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
+
+ s->exec_context.kill_mode = KILL_PROCESS;
+
+ /* We use the long description only if
+ * no short description is set. */
+
+ if (short_description)
+ description = short_description;
+ else if (chkconfig_description)
+ description = chkconfig_description;
+ else if (long_description)
+ description = long_description;
+ else
+ description = NULL;
+
+ if (description) {
+ char *d;
+
+ if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ u->description = d;
+ }
+
+ /* The priority that has been set in /etc/rcN.d/ hierarchies
+ * takes precedence over what is stored as default in the LSB
+ * header */
+ if (s->sysv_start_priority_from_rcnd >= 0)
+ s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
+
+ u->load_state = UNIT_LOADED;
+ r = 0;
+
+finish:
+
+ if (f)
+ fclose(f);
+
+ free(short_description);
+ free(long_description);
+ free(chkconfig_description);
+
+ return r;
+}
+
+static int service_load_sysv_name(Service *s, const char *name) {
+ char **p;
+
+ assert(s);
+ assert(name);
+
+ /* For SysV services we strip the boot.*, rc.* and *.sh
+ * prefixes/suffixes. */
+#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+ if (endswith(name, ".sh.service"))
+ return -ENOENT;
+#endif
+
+#ifdef TARGET_SUSE
+ if (startswith(name, "boot."))
+ return -ENOENT;
+#endif
+
+#ifdef TARGET_FRUGALWARE
+ if (startswith(name, "rc."))
+ return -ENOENT;
+#endif
+
+ STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
+ char *path;
+ int r;
+
+ path = join(*p, "/", name, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ assert(endswith(path, ".service"));
+ path[strlen(path)-8] = 0;
+
+ r = service_load_sysv_path(s, path);
+
+#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+ if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
+ /* Try Debian style *.sh source'able init scripts */
+ strcat(path, ".sh");
+ r = service_load_sysv_path(s, path);
+ }
+#endif
+ free(path);
+
+#ifdef TARGET_SUSE
+ if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
+ /* Try SUSE style boot.* init scripts */
+
+ path = join(*p, "/boot.", name, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ /* Drop .service suffix */
+ path[strlen(path)-8] = 0;
+ r = service_load_sysv_path(s, path);
+ free(path);
+ }
+#endif
+
+#ifdef TARGET_FRUGALWARE
+ if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
+ /* Try Frugalware style rc.* init scripts */
+
+ path = join(*p, "/rc.", name, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ /* Drop .service suffix */
+ path[strlen(path)-8] = 0;
+ r = service_load_sysv_path(s, path);
+ free(path);
+ }
+#endif
+
+ if (r < 0)
+ return r;
+
+ if ((UNIT(s)->load_state != UNIT_STUB))
+ break;
+ }
+
+ return 0;
+}
+
+static int service_load_sysv(Service *s) {
+ const char *t;
+ Iterator i;
+ int r;
+
+ assert(s);
+
+ /* Load service data from SysV init scripts, preferably with
+ * LSB headers ... */
+
+ if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
+ return 0;
+
+ if ((t = UNIT(s)->id))
+ if ((r = service_load_sysv_name(s, t)) < 0)
+ return r;
+
+ if (UNIT(s)->load_state == UNIT_STUB)
+ SET_FOREACH(t, UNIT(s)->names, i) {
+ if (t == UNIT(s)->id)
+ continue;
+
+ if ((r = service_load_sysv_name(s, t)) < 0)
+ return r;
+
+ if (UNIT(s)->load_state != UNIT_STUB)
+ break;
+ }
+
+ return 0;
+}
+#endif
+
+static int fsck_fix_order(Service *s) {
+ Unit *other;
+ int r;
+
+ assert(s);
+
+ if (s->fsck_passno <= 0)
+ return 0;
+
+ /* For each pair of services where both have an fsck priority
+ * we order things based on it. */
+
+ LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
+ Service *t;
+ UnitDependency d;
+
+ t = SERVICE(other);
+
+ if (s == t)
+ continue;
+
+ if (UNIT(t)->load_state != UNIT_LOADED)
+ continue;
+
+ if (t->fsck_passno <= 0)
+ continue;
+
+ if (t->fsck_passno < s->fsck_passno)
+ d = UNIT_AFTER;
+ else if (t->fsck_passno > s->fsck_passno)
+ d = UNIT_BEFORE;
+ else
+ continue;
+
+ if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int service_verify(Service *s) {
+ assert(s);
+
+ if (UNIT(s)->load_state != UNIT_LOADED)
+ return 0;
+
+ if (!s->exec_command[SERVICE_EXEC_START]) {
+ log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->type != SERVICE_ONESHOT &&
+ s->exec_command[SERVICE_EXEC_START]->command_next) {
+ log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->type == SERVICE_ONESHOT &&
+ s->exec_command[SERVICE_EXEC_RELOAD]) {
+ log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->type == SERVICE_DBUS && !s->bus_name) {
+ log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
+ log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int service_add_default_dependencies(Service *s) {
+ int r;
+
+ assert(s);
+
+ /* Add a number of automatic dependencies useful for the
+ * majority of services. */
+
+ /* First, pull in base system */
+ if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
+
+ if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
+ return r;
+
+ } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
+
+ if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
+ return r;
+ }
+
+ /* Second, activate normal shutdown */
+ return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+}
+
+static void service_fix_output(Service *s) {
+ assert(s);
+
+ /* If nothing has been explicitly configured, patch default
+ * output in. If input is socket/tty we avoid this however,
+ * since in that case we want output to default to the same
+ * place as we read input from. */
+
+ if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
+ s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
+ s->exec_context.std_input == EXEC_INPUT_NULL)
+ s->exec_context.std_error = UNIT(s)->manager->default_std_error;
+
+ if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
+ s->exec_context.std_input == EXEC_INPUT_NULL)
+ s->exec_context.std_output = UNIT(s)->manager->default_std_output;
+}
+
+static int service_load(Unit *u) {
+ int r;
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ /* Load a .service file */
+ if ((r = unit_load_fragment(u)) < 0)
+ return r;
+
+#ifdef HAVE_SYSV_COMPAT
+ /* Load a classic init script as a fallback, if we couldn't find anything */
+ if (u->load_state == UNIT_STUB)
+ if ((r = service_load_sysv(s)) < 0)
+ return r;
+#endif
+
+ /* Still nothing found? Then let's give up */
+ if (u->load_state == UNIT_STUB)
+ return -ENOENT;
+
+ /* We were able to load something, then let's add in the
+ * dropin directories. */
+ if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
+ return r;
+
+ /* This is a new unit? Then let's add in some extras */
+ if (u->load_state == UNIT_LOADED) {
+ service_fix_output(s);
+
+ if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
+ return r;
+
+ if ((r = unit_add_default_cgroups(u)) < 0)
+ return r;
+
+#ifdef HAVE_SYSV_COMPAT
+ if ((r = sysv_fix_order(s)) < 0)
+ return r;
+#endif
+
+ if ((r = fsck_fix_order(s)) < 0)
+ return r;
+
+ if (s->bus_name)
+ if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
+ return r;
+
+ if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
+ s->notify_access = NOTIFY_MAIN;
+
+ if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
+ s->notify_access = NOTIFY_MAIN;
+
+ if (s->type == SERVICE_DBUS || s->bus_name)
+ if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
+ return r;
+
+ if (UNIT(s)->default_dependencies)
+ if ((r = service_add_default_dependencies(s)) < 0)
+ return r;
+ }
+
+ return service_verify(s);
+}
+
+static void service_dump(Unit *u, FILE *f, const char *prefix) {
+
+ ServiceExecCommand c;
+ Service *s = SERVICE(u);
+ const char *prefix2;
+ char *p2;
+
+ assert(s);
+
+ p2 = strappend(prefix, "\t");
+ prefix2 = p2 ? p2 : prefix;
+
+ fprintf(f,
+ "%sService State: %s\n"
+ "%sResult: %s\n"
+ "%sReload Result: %s\n"
+ "%sPermissionsStartOnly: %s\n"
+ "%sRootDirectoryStartOnly: %s\n"
+ "%sRemainAfterExit: %s\n"
+ "%sGuessMainPID: %s\n"
+ "%sType: %s\n"
+ "%sRestart: %s\n"
+ "%sNotifyAccess: %s\n",
+ prefix, service_state_to_string(s->state),
+ prefix, service_result_to_string(s->result),
+ prefix, service_result_to_string(s->reload_result),
+ prefix, yes_no(s->permissions_start_only),
+ prefix, yes_no(s->root_directory_start_only),
+ prefix, yes_no(s->remain_after_exit),
+ prefix, yes_no(s->guess_main_pid),
+ prefix, service_type_to_string(s->type),
+ prefix, service_restart_to_string(s->restart),
+ prefix, notify_access_to_string(s->notify_access));
+
+ if (s->control_pid > 0)
+ fprintf(f,
+ "%sControl PID: %lu\n",
+ prefix, (unsigned long) s->control_pid);
+
+ if (s->main_pid > 0)
+ fprintf(f,
+ "%sMain PID: %lu\n"
+ "%sMain PID Known: %s\n"
+ "%sMain PID Alien: %s\n",
+ prefix, (unsigned long) s->main_pid,
+ prefix, yes_no(s->main_pid_known),
+ prefix, yes_no(s->main_pid_alien));
+
+ if (s->pid_file)
+ fprintf(f,
+ "%sPIDFile: %s\n",
+ prefix, s->pid_file);
+
+ if (s->bus_name)
+ fprintf(f,
+ "%sBusName: %s\n"
+ "%sBus Name Good: %s\n",
+ prefix, s->bus_name,
+ prefix, yes_no(s->bus_name_good));
+
+ exec_context_dump(&s->exec_context, f, prefix);
+
+ for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
+
+ if (!s->exec_command[c])
+ continue;
+
+ fprintf(f, "%s-> %s:\n",
+ prefix, service_exec_command_to_string(c));
+
+ exec_command_dump_list(s->exec_command[c], f, prefix2);
+ }
+
+#ifdef HAVE_SYSV_COMPAT
+ if (s->sysv_path)
+ fprintf(f,
+ "%sSysV Init Script Path: %s\n"
+ "%sSysV Init Script has LSB Header: %s\n"
+ "%sSysVEnabled: %s\n",
+ prefix, s->sysv_path,
+ prefix, yes_no(s->sysv_has_lsb),
+ prefix, yes_no(s->sysv_enabled));
+
+ if (s->sysv_start_priority >= 0)
+ fprintf(f,
+ "%sSysVStartPriority: %i\n",
+ prefix, s->sysv_start_priority);
+
+ if (s->sysv_runlevels)
+ fprintf(f, "%sSysVRunLevels: %s\n",
+ prefix, s->sysv_runlevels);
+#endif
+
+ if (s->fsck_passno > 0)
+ fprintf(f,
+ "%sFsckPassNo: %i\n",
+ prefix, s->fsck_passno);
+
+ if (s->status_text)
+ fprintf(f, "%sStatus Text: %s\n",
+ prefix, s->status_text);
+
+ free(p2);
+}
+
+static int service_load_pid_file(Service *s, bool may_warn) {
+ char *k;
+ int r;
+ pid_t pid;
+
+ assert(s);
+
+ if (!s->pid_file)
+ return -ENOENT;
+
+ if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
+ if (may_warn)
+ log_info("PID file %s not readable (yet?) after %s.",
+ s->pid_file, service_state_to_string(s->state));
+ return r;
+ }
+
+ r = parse_pid(k, &pid);
+ free(k);
+
+ if (r < 0)
+ return r;
+
+ if (kill(pid, 0) < 0 && errno != EPERM) {
+ if (may_warn)
+ log_info("PID %lu read from file %s does not exist.",
+ (unsigned long) pid, s->pid_file);
+ return -ESRCH;
+ }
+
+ if (s->main_pid_known) {
+ if (pid == s->main_pid)
+ return 0;
+
+ log_debug("Main PID changing: %lu -> %lu",
+ (unsigned long) s->main_pid, (unsigned long) pid);
+ service_unwatch_main_pid(s);
+ s->main_pid_known = false;
+ } else
+ log_debug("Main PID loaded: %lu", (unsigned long) pid);
+
+ if ((r = service_set_main_pid(s, pid)) < 0)
+ return r;
+
+ if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ /* FIXME: we need to do something here */
+ return r;
+
+ return 0;
+}
+
+static int service_search_main_pid(Service *s) {
+ pid_t pid;
+ int r;
+
+ assert(s);
+
+ /* If we know it anyway, don't ever fallback to unreliable
+ * heuristics */
+ if (s->main_pid_known)
+ return 0;
+
+ if (!s->guess_main_pid)
+ return 0;
+
+ assert(s->main_pid <= 0);
+
+ if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
+ return -ENOENT;
+
+ log_debug("Main PID guessed: %lu", (unsigned long) pid);
+ if ((r = service_set_main_pid(s, pid)) < 0)
+ return r;
+
+ if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ /* FIXME: we need to do something here */
+ return r;
+
+ return 0;
+}
+
+static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
+ Iterator i;
+ Unit *u;
+
+ assert(s);
+
+ /* Notifies all our sockets when we die */
+
+ if (s->socket_fd >= 0)
+ return;
+
+ SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
+ if (u->type == UNIT_SOCKET)
+ socket_notify_service_dead(SOCKET(u), failed_permanent);
+
+ return;
+}
+
+static void service_set_state(Service *s, ServiceState state) {
+ ServiceState old_state;
+ assert(s);
+
+ old_state = s->state;
+ s->state = state;
+
+ service_unwatch_pid_file(s);
+
+ if (state != SERVICE_START_PRE &&
+ state != SERVICE_START &&
+ state != SERVICE_START_POST &&
+ state != SERVICE_RELOAD &&
+ state != SERVICE_STOP &&
+ state != SERVICE_STOP_SIGTERM &&
+ state != SERVICE_STOP_SIGKILL &&
+ state != SERVICE_STOP_POST &&
+ state != SERVICE_FINAL_SIGTERM &&
+ state != SERVICE_FINAL_SIGKILL &&
+ state != SERVICE_AUTO_RESTART)
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
+
+ if (state != SERVICE_START &&
+ state != SERVICE_START_POST &&
+ state != SERVICE_RUNNING &&
+ state != SERVICE_RELOAD &&
+ state != SERVICE_STOP &&
+ state != SERVICE_STOP_SIGTERM &&
+ state != SERVICE_STOP_SIGKILL) {
+ service_unwatch_main_pid(s);
+ s->main_command = NULL;
+ }
+
+ if (state != SERVICE_START_PRE &&
+ state != SERVICE_START &&
+ state != SERVICE_START_POST &&
+ state != SERVICE_RELOAD &&
+ state != SERVICE_STOP &&
+ state != SERVICE_STOP_SIGTERM &&
+ state != SERVICE_STOP_SIGKILL &&
+ state != SERVICE_STOP_POST &&
+ state != SERVICE_FINAL_SIGTERM &&
+ state != SERVICE_FINAL_SIGKILL) {
+ service_unwatch_control_pid(s);
+ s->control_command = NULL;
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+ }
+
+ if (state == SERVICE_DEAD ||
+ state == SERVICE_STOP ||
+ state == SERVICE_STOP_SIGTERM ||
+ state == SERVICE_STOP_SIGKILL ||
+ state == SERVICE_STOP_POST ||
+ state == SERVICE_FINAL_SIGTERM ||
+ state == SERVICE_FINAL_SIGKILL ||
+ state == SERVICE_FAILED ||
+ state == SERVICE_AUTO_RESTART)
+ service_notify_sockets_dead(s, false);
+
+ if (state != SERVICE_START_PRE &&
+ state != SERVICE_START &&
+ state != SERVICE_START_POST &&
+ state != SERVICE_RUNNING &&
+ state != SERVICE_RELOAD &&
+ state != SERVICE_STOP &&
+ state != SERVICE_STOP_SIGTERM &&
+ state != SERVICE_STOP_SIGKILL &&
+ state != SERVICE_STOP_POST &&
+ state != SERVICE_FINAL_SIGTERM &&
+ state != SERVICE_FINAL_SIGKILL &&
+ !(state == SERVICE_DEAD && UNIT(s)->job)) {
+ service_close_socket_fd(s);
+ service_connection_unref(s);
+ }
+
+ if (state == SERVICE_STOP)
+ service_stop_watchdog(s);
+
+ /* For the inactive states unit_notify() will trim the cgroup,
+ * but for exit we have to do that ourselves... */
+ if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
+ cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
+
+ if (old_state != state)
+ log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
+
+ unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], s->reload_result == SERVICE_SUCCESS);
+ s->reload_result = SERVICE_SUCCESS;
+}
+
+static int service_coldplug(Unit *u) {
+ Service *s = SERVICE(u);
+ int r;
+
+ assert(s);
+ assert(s->state == SERVICE_DEAD);
+
+ if (s->deserialized_state != s->state) {
+
+ if (s->deserialized_state == SERVICE_START_PRE ||
+ s->deserialized_state == SERVICE_START ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL ||
+ s->deserialized_state == SERVICE_STOP_POST ||
+ s->deserialized_state == SERVICE_FINAL_SIGTERM ||
+ s->deserialized_state == SERVICE_FINAL_SIGKILL ||
+ s->deserialized_state == SERVICE_AUTO_RESTART) {
+
+ if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
+ usec_t k;
+
+ k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
+
+ if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
+ return r;
+ }
+ }
+
+ if ((s->deserialized_state == SERVICE_START &&
+ (s->type == SERVICE_FORKING ||
+ s->type == SERVICE_DBUS ||
+ s->type == SERVICE_ONESHOT ||
+ s->type == SERVICE_NOTIFY)) ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RUNNING ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL)
+ if (s->main_pid > 0)
+ if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
+ return r;
+
+ if (s->deserialized_state == SERVICE_START_PRE ||
+ s->deserialized_state == SERVICE_START ||
+ s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RELOAD ||
+ s->deserialized_state == SERVICE_STOP ||
+ s->deserialized_state == SERVICE_STOP_SIGTERM ||
+ s->deserialized_state == SERVICE_STOP_SIGKILL ||
+ s->deserialized_state == SERVICE_STOP_POST ||
+ s->deserialized_state == SERVICE_FINAL_SIGTERM ||
+ s->deserialized_state == SERVICE_FINAL_SIGKILL)
+ if (s->control_pid > 0)
+ if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
+ return r;
+
+ if (s->deserialized_state == SERVICE_START_POST ||
+ s->deserialized_state == SERVICE_RUNNING)
+ service_handle_watchdog(s);
+
+ service_set_state(s, s->deserialized_state);
+ }
+ return 0;
+}
+
+static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
+ Iterator i;
+ int r;
+ int *rfds = NULL;
+ unsigned rn_fds = 0;
+ Unit *u;
+
+ assert(s);
+ assert(fds);
+ assert(n_fds);
+
+ if (s->socket_fd >= 0)
+ return 0;
+
+ SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
+ int *cfds;
+ unsigned cn_fds;
+ Socket *sock;
+
+ if (u->type != UNIT_SOCKET)
+ continue;
+
+ sock = SOCKET(u);
+
+ if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
+ goto fail;
+
+ if (!cfds)
+ continue;
+
+ if (!rfds) {
+ rfds = cfds;
+ rn_fds = cn_fds;
+ } else {
+ int *t;
+
+ if (!(t = new(int, rn_fds+cn_fds))) {
+ free(cfds);
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ memcpy(t, rfds, rn_fds * sizeof(int));
+ memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
+ free(rfds);
+ free(cfds);
+
+ rfds = t;
+ rn_fds = rn_fds+cn_fds;
+ }
+ }
+
+ *fds = rfds;
+ *n_fds = rn_fds;
+
+ return 0;
+
+fail:
+ free(rfds);
+
+ return r;
+}
+
+static int service_spawn(
+ Service *s,
+ ExecCommand *c,
+ bool timeout,
+ bool pass_fds,
+ bool apply_permissions,
+ bool apply_chroot,
+ bool apply_tty_stdin,
+ bool set_notify_socket,
+ pid_t *_pid) {
+
+ pid_t pid;
+ int r;
+ int *fds = NULL, *fdsbuf = NULL;
+ unsigned n_fds = 0, n_env = 0;
+ char **argv = NULL, **final_env = NULL, **our_env = NULL;
+
+ assert(s);
+ assert(c);
+ assert(_pid);
+
+ if (pass_fds ||
+ s->exec_context.std_input == EXEC_INPUT_SOCKET ||
+ s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
+ s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
+
+ if (s->socket_fd >= 0) {
+ fds = &s->socket_fd;
+ n_fds = 1;
+ } else {
+ if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
+ goto fail;
+
+ fds = fdsbuf;
+ }
+ }
+
+ if (timeout && s->timeout_usec) {
+ if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
+ goto fail;
+ } else
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
+
+ if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (!(our_env = new0(char*, 4))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (set_notify_socket)
+ if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (s->main_pid > 0)
+ if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (s->watchdog_usec > 0)
+ if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (!(final_env = strv_env_merge(2,
+ UNIT(s)->manager->environment,
+ our_env,
+ NULL))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ r = exec_spawn(c,
+ argv,
+ &s->exec_context,
+ fds, n_fds,
+ final_env,
+ apply_permissions,
+ apply_chroot,
+ apply_tty_stdin,
+ UNIT(s)->manager->confirm_spawn,
+ UNIT(s)->cgroup_bondings,
+ UNIT(s)->cgroup_attributes,
+ &pid);
+
+ if (r < 0)
+ goto fail;
+
+
+ if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ /* FIXME: we need to do something here */
+ goto fail;
+
+ free(fdsbuf);
+ strv_free(argv);
+ strv_free(our_env);
+ strv_free(final_env);
+
+ *_pid = pid;
+
+ return 0;
+
+fail:
+ free(fdsbuf);
+ strv_free(argv);
+ strv_free(our_env);
+ strv_free(final_env);
+
+ if (timeout)
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
+
+ return r;
+}
+
+static int main_pid_good(Service *s) {
+ assert(s);
+
+ /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
+ * don't know */
+
+ /* If we know the pid file, then lets just check if it is
+ * still valid */
+ if (s->main_pid_known) {
+
+ /* If it's an alien child let's check if it is still
+ * alive ... */
+ if (s->main_pid_alien)
+ return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
+
+ /* .. otherwise assume we'll get a SIGCHLD for it,
+ * which we really should wait for to collect exit
+ * status and code */
+ return s->main_pid > 0;
+ }
+
+ /* We don't know the pid */
+ return -EAGAIN;
+}
+
+static int control_pid_good(Service *s) {
+ assert(s);
+
+ return s->control_pid > 0;
+}
+
+static int cgroup_good(Service *s) {
+ int r;
+
+ assert(s);
+
+ if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
+ return r;
+
+ return !r;
+}
+
+static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
+ int r;
+ assert(s);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ if (allow_restart &&
+ !s->forbid_restart &&
+ (s->restart == SERVICE_RESTART_ALWAYS ||
+ (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
+ (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
+ (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
+ s->result == SERVICE_FAILURE_CORE_DUMP)))) {
+
+ r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
+ if (r < 0)
+ goto fail;
+
+ service_set_state(s, SERVICE_AUTO_RESTART);
+ } else
+ service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
+
+ s->forbid_restart = false;
+
+ return;
+
+fail:
+ log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
+}
+
+static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
+
+static void service_enter_stop_post(Service *s, ServiceResult f) {
+ int r;
+ assert(s);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ service_unwatch_control_pid(s);
+
+ if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
+ s->control_command_id = SERVICE_EXEC_STOP_POST;
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ true,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+
+ service_set_state(s, SERVICE_STOP_POST);
+ } else
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
+ int r;
+ Set *pid_set = NULL;
+ bool wait_for_exit = false;
+
+ assert(s);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ if (s->exec_context.kill_mode != KILL_NONE) {
+ int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
+
+ if (s->main_pid > 0) {
+ if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
+ log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
+ else
+ wait_for_exit = !s->main_pid_alien;
+ }
+
+ if (s->control_pid > 0) {
+ if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
+ log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
+ else
+ wait_for_exit = true;
+ }
+
+ if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
+
+ if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ /* Exclude the main/control pids from being killed via the cgroup */
+ if (s->main_pid > 0)
+ if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
+ goto fail;
+
+ if (s->control_pid > 0)
+ if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
+ goto fail;
+
+ if ((r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set)) < 0) {
+ if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ log_warning("Failed to kill control group: %s", strerror(-r));
+ } else if (r > 0)
+ wait_for_exit = true;
+
+ set_free(pid_set);
+ pid_set = NULL;
+ }
+ }
+
+ if (wait_for_exit) {
+ if (s->timeout_usec > 0)
+ if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
+ goto fail;
+
+ service_set_state(s, state);
+ } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
+ service_enter_stop_post(s, SERVICE_SUCCESS);
+ else
+ service_enter_dead(s, SERVICE_SUCCESS, true);
+
+ return;
+
+fail:
+ log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
+
+ if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
+ service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
+ else
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+
+ if (pid_set)
+ set_free(pid_set);
+}
+
+static void service_enter_stop(Service *s, ServiceResult f) {
+ int r;
+
+ assert(s);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ service_unwatch_control_pid(s);
+
+ if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
+ s->control_command_id = SERVICE_EXEC_STOP;
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ false,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+ service_set_state(s, SERVICE_STOP);
+ } else
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_enter_running(Service *s, ServiceResult f) {
+ int main_pid_ok, cgroup_ok;
+ assert(s);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ main_pid_ok = main_pid_good(s);
+ cgroup_ok = cgroup_good(s);
+
+ if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
+ (s->bus_name_good || s->type != SERVICE_DBUS))
+ service_set_state(s, SERVICE_RUNNING);
+ else if (s->remain_after_exit)
+ service_set_state(s, SERVICE_EXITED);
+ else
+ service_enter_stop(s, SERVICE_SUCCESS);
+}
+
+static void service_enter_start_post(Service *s) {
+ int r;
+ assert(s);
+
+ service_unwatch_control_pid(s);
+
+ if (s->watchdog_usec > 0)
+ service_reset_watchdog(s);
+
+ if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
+ s->control_command_id = SERVICE_EXEC_START_POST;
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ false,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+ service_set_state(s, SERVICE_START_POST);
+ } else
+ service_enter_running(s, SERVICE_SUCCESS);
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_enter_start(Service *s) {
+ pid_t pid;
+ int r;
+ ExecCommand *c;
+
+ assert(s);
+
+ assert(s->exec_command[SERVICE_EXEC_START]);
+ assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
+
+ if (s->type == SERVICE_FORKING)
+ service_unwatch_control_pid(s);
+ else
+ service_unwatch_main_pid(s);
+
+ /* We want to ensure that nobody leaks processes from
+ * START_PRE here, so let's go on a killing spree, People
+ * should not spawn long running processes from START_PRE. */
+ cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
+
+ if (s->type == SERVICE_FORKING) {
+ s->control_command_id = SERVICE_EXEC_START;
+ c = s->control_command = s->exec_command[SERVICE_EXEC_START];
+
+ s->main_command = NULL;
+ } else {
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+ s->control_command = NULL;
+
+ c = s->main_command = s->exec_command[SERVICE_EXEC_START];
+ }
+
+ if ((r = service_spawn(s,
+ c,
+ s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
+ true,
+ true,
+ true,
+ true,
+ s->notify_access != NOTIFY_NONE,
+ &pid)) < 0)
+ goto fail;
+
+ if (s->type == SERVICE_SIMPLE) {
+ /* For simple services we immediately start
+ * the START_POST binaries. */
+
+ service_set_main_pid(s, pid);
+ service_enter_start_post(s);
+
+ } else if (s->type == SERVICE_FORKING) {
+
+ /* For forking services we wait until the start
+ * process exited. */
+
+ s->control_pid = pid;
+ service_set_state(s, SERVICE_START);
+
+ } else if (s->type == SERVICE_ONESHOT ||
+ s->type == SERVICE_DBUS ||
+ s->type == SERVICE_NOTIFY) {
+
+ /* For oneshot services we wait until the start
+ * process exited, too, but it is our main process. */
+
+ /* For D-Bus services we know the main pid right away,
+ * but wait for the bus name to appear on the
+ * bus. Notify services are similar. */
+
+ service_set_main_pid(s, pid);
+ service_set_state(s, SERVICE_START);
+ } else
+ assert_not_reached("Unknown service type");
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_enter_start_pre(Service *s) {
+ int r;
+
+ assert(s);
+
+ service_unwatch_control_pid(s);
+
+ if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
+
+ /* Before we start anything, let's clear up what might
+ * be left from previous runs. */
+ cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
+
+ s->control_command_id = SERVICE_EXEC_START_PRE;
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ true,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+ service_set_state(s, SERVICE_START_PRE);
+ } else
+ service_enter_start(s);
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+}
+
+static void service_enter_restart(Service *s) {
+ int r;
+ DBusError error;
+
+ assert(s);
+ dbus_error_init(&error);
+
+ if (UNIT(s)->job) {
+ log_info("Job pending for unit, delaying automatic restart.");
+
+ if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
+ goto fail;
+ }
+
+ /* Any units that are bound to this service must also be
+ * restarted. We use JOB_RESTART (instead of the more obvious
+ * JOB_START) here so that those dependency jobs will be added
+ * as well. */
+ r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
+ if (r < 0)
+ goto fail;
+
+ log_debug("%s scheduled restart job.", UNIT(s)->id);
+ return;
+
+fail:
+ log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
+
+ dbus_error_free(&error);
+}
+
+static void service_enter_reload(Service *s) {
+ int r;
+
+ assert(s);
+
+ service_unwatch_control_pid(s);
+
+ if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
+ s->control_command_id = SERVICE_EXEC_RELOAD;
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ false,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+ service_set_state(s, SERVICE_RELOAD);
+ } else
+ service_enter_running(s, SERVICE_SUCCESS);
+
+ return;
+
+fail:
+ log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
+ s->reload_result = SERVICE_FAILURE_RESOURCES;
+ service_enter_running(s, SERVICE_SUCCESS);
+}
+
+static void service_run_next_control(Service *s) {
+ int r;
+
+ assert(s);
+ assert(s->control_command);
+ assert(s->control_command->command_next);
+
+ assert(s->control_command_id != SERVICE_EXEC_START);
+
+ s->control_command = s->control_command->command_next;
+ service_unwatch_control_pid(s);
+
+ if ((r = service_spawn(s,
+ s->control_command,
+ true,
+ false,
+ !s->permissions_start_only,
+ !s->root_directory_start_only,
+ s->control_command_id == SERVICE_EXEC_START_PRE ||
+ s->control_command_id == SERVICE_EXEC_STOP_POST,
+ false,
+ &s->control_pid)) < 0)
+ goto fail;
+
+ return;
+
+fail:
+ log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
+
+ if (s->state == SERVICE_START_PRE)
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ else if (s->state == SERVICE_STOP)
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ else if (s->state == SERVICE_STOP_POST)
+ service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
+ else if (s->state == SERVICE_RELOAD) {
+ s->reload_result = SERVICE_FAILURE_RESOURCES;
+ service_enter_running(s, SERVICE_SUCCESS);
+ } else
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_run_next_main(Service *s) {
+ pid_t pid;
+ int r;
+
+ assert(s);
+ assert(s->main_command);
+ assert(s->main_command->command_next);
+ assert(s->type == SERVICE_ONESHOT);
+
+ s->main_command = s->main_command->command_next;
+ service_unwatch_main_pid(s);
+
+ if ((r = service_spawn(s,
+ s->main_command,
+ false,
+ true,
+ true,
+ true,
+ true,
+ s->notify_access != NOTIFY_NONE,
+ &pid)) < 0)
+ goto fail;
+
+ service_set_main_pid(s, pid);
+
+ return;
+
+fail:
+ log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+}
+
+static int service_start_limit_test(Service *s) {
+ assert(s);
+
+ if (ratelimit_test(&s->start_limit))
+ return 0;
+
+ switch (s->start_limit_action) {
+
+ case SERVICE_START_LIMIT_NONE:
+ log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
+ break;
+
+ case SERVICE_START_LIMIT_REBOOT: {
+ DBusError error;
+ int r;
+
+ dbus_error_init(&error);
+
+ log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
+
+ r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
+ if (r < 0) {
+ log_error("Failed to reboot: %s.", bus_error(&error, r));
+ dbus_error_free(&error);
+ }
+
+ break;
+ }
+
+ case SERVICE_START_LIMIT_REBOOT_FORCE:
+ log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
+ UNIT(s)->manager->exit_code = MANAGER_REBOOT;
+ break;
+
+ case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
+ log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
+ reboot(RB_AUTOBOOT);
+ break;
+
+ default:
+ log_error("start limit action=%i", s->start_limit_action);
+ assert_not_reached("Unknown StartLimitAction.");
+ }
+
+ return -ECANCELED;
+}
+
+static int service_start(Unit *u) {
+ Service *s = SERVICE(u);
+ int r;
+
+ assert(s);
+
+ /* We cannot fulfill this request right now, try again later
+ * please! */
+ if (s->state == SERVICE_STOP ||
+ s->state == SERVICE_STOP_SIGTERM ||
+ s->state == SERVICE_STOP_SIGKILL ||
+ s->state == SERVICE_STOP_POST ||
+ s->state == SERVICE_FINAL_SIGTERM ||
+ s->state == SERVICE_FINAL_SIGKILL)
+ return -EAGAIN;
+
+ /* Already on it! */
+ if (s->state == SERVICE_START_PRE ||
+ s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST)
+ return 0;
+
+ assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
+
+ /* Make sure we don't enter a busy loop of some kind. */
+ r = service_start_limit_test(s);
+ if (r < 0) {
+ service_notify_sockets_dead(s, true);
+ return r;
+ }
+
+ s->result = SERVICE_SUCCESS;
+ s->reload_result = SERVICE_SUCCESS;
+ s->main_pid_known = false;
+ s->main_pid_alien = false;
+ s->forbid_restart = false;
+
+ service_enter_start_pre(s);
+ return 0;
+}
+
+static int service_stop(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ /* This is a user request, so don't do restarts on this
+ * shutdown. */
+ s->forbid_restart = true;
+
+ /* Already on it */
+ if (s->state == SERVICE_STOP ||
+ s->state == SERVICE_STOP_SIGTERM ||
+ s->state == SERVICE_STOP_SIGKILL ||
+ s->state == SERVICE_STOP_POST ||
+ s->state == SERVICE_FINAL_SIGTERM ||
+ s->state == SERVICE_FINAL_SIGKILL)
+ return 0;
+
+ /* Don't allow a restart */
+ if (s->state == SERVICE_AUTO_RESTART) {
+ service_set_state(s, SERVICE_DEAD);
+ return 0;
+ }
+
+ /* If there's already something running we go directly into
+ * kill mode. */
+ if (s->state == SERVICE_START_PRE ||
+ s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST ||
+ s->state == SERVICE_RELOAD) {
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
+ return 0;
+ }
+
+ assert(s->state == SERVICE_RUNNING ||
+ s->state == SERVICE_EXITED);
+
+ service_enter_stop(s, SERVICE_SUCCESS);
+ return 0;
+}
+
+static int service_reload(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
+
+ service_enter_reload(s);
+ return 0;
+}
+
+static bool service_can_reload(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ return !!s->exec_command[SERVICE_EXEC_RELOAD];
+}
+
+static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+ assert(f);
+ assert(fds);
+
+ unit_serialize_item(u, f, "state", service_state_to_string(s->state));
+ unit_serialize_item(u, f, "result", service_result_to_string(s->result));
+ unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
+
+ if (s->control_pid > 0)
+ unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
+
+ if (s->main_pid_known && s->main_pid > 0)
+ unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
+
+ unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
+
+ if (s->status_text)
+ unit_serialize_item(u, f, "status-text", s->status_text);
+
+ /* FIXME: There's a minor uncleanliness here: if there are
+ * multiple commands attached here, we will start from the
+ * first one again */
+ if (s->control_command_id >= 0)
+ unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
+
+ if (s->socket_fd >= 0) {
+ int copy;
+
+ if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
+ return copy;
+
+ unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
+ }
+
+ if (s->main_exec_status.pid > 0) {
+ unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
+ dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
+ dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
+
+ if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
+ unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
+ unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
+ }
+ }
+ if (dual_timestamp_is_set(&s->watchdog_timestamp))
+ dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
+
+ return 0;
+}
+
+static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+ assert(key);
+ assert(value);
+ assert(fds);
+
+ if (streq(key, "state")) {
+ ServiceState state;
+
+ if ((state = service_state_from_string(value)) < 0)
+ log_debug("Failed to parse state value %s", value);
+ else
+ s->deserialized_state = state;
+ } else if (streq(key, "result")) {
+ ServiceResult f;
+
+ f = service_result_from_string(value);
+ if (f < 0)
+ log_debug("Failed to parse result value %s", value);
+ else if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ } else if (streq(key, "reload-result")) {
+ ServiceResult f;
+
+ f = service_result_from_string(value);
+ if (f < 0)
+ log_debug("Failed to parse reload result value %s", value);
+ else if (f != SERVICE_SUCCESS)
+ s->reload_result = f;
+
+ } else if (streq(key, "control-pid")) {
+ pid_t pid;
+
+ if (parse_pid(value, &pid) < 0)
+ log_debug("Failed to parse control-pid value %s", value);
+ else
+ s->control_pid = pid;
+ } else if (streq(key, "main-pid")) {
+ pid_t pid;
+
+ if (parse_pid(value, &pid) < 0)
+ log_debug("Failed to parse main-pid value %s", value);
+ else
+ service_set_main_pid(s, (pid_t) pid);
+ } else if (streq(key, "main-pid-known")) {
+ int b;
+
+ if ((b = parse_boolean(value)) < 0)
+ log_debug("Failed to parse main-pid-known value %s", value);
+ else
+ s->main_pid_known = b;
+ } else if (streq(key, "status-text")) {
+ char *t;
+
+ if ((t = strdup(value))) {
+ free(s->status_text);
+ s->status_text = t;
+ }
+
+ } else if (streq(key, "control-command")) {
+ ServiceExecCommand id;
+
+ if ((id = service_exec_command_from_string(value)) < 0)
+ log_debug("Failed to parse exec-command value %s", value);
+ else {
+ s->control_command_id = id;
+ s->control_command = s->exec_command[id];
+ }
+ } else if (streq(key, "socket-fd")) {
+ int fd;
+
+ if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ log_debug("Failed to parse socket-fd value %s", value);
+ else {
+
+ if (s->socket_fd >= 0)
+ close_nointr_nofail(s->socket_fd);
+ s->socket_fd = fdset_remove(fds, fd);
+ }
+ } else if (streq(key, "main-exec-status-pid")) {
+ pid_t pid;
+
+ if (parse_pid(value, &pid) < 0)
+ log_debug("Failed to parse main-exec-status-pid value %s", value);
+ else
+ s->main_exec_status.pid = pid;
+ } else if (streq(key, "main-exec-status-code")) {
+ int i;
+
+ if (safe_atoi(value, &i) < 0)
+ log_debug("Failed to parse main-exec-status-code value %s", value);
+ else
+ s->main_exec_status.code = i;
+ } else if (streq(key, "main-exec-status-status")) {
+ int i;
+
+ if (safe_atoi(value, &i) < 0)
+ log_debug("Failed to parse main-exec-status-status value %s", value);
+ else
+ s->main_exec_status.status = i;
+ } else if (streq(key, "main-exec-status-start"))
+ dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
+ else if (streq(key, "main-exec-status-exit"))
+ dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
+ else if (streq(key, "watchdog-timestamp"))
+ dual_timestamp_deserialize(value, &s->watchdog_timestamp);
+ else
+ log_debug("Unknown serialization key '%s'", key);
+
+ return 0;
+}
+
+static UnitActiveState service_active_state(Unit *u) {
+ assert(u);
+
+ return state_translation_table[SERVICE(u)->state];
+}
+
+static const char *service_sub_state_to_string(Unit *u) {
+ assert(u);
+
+ return service_state_to_string(SERVICE(u)->state);
+}
+
+static bool service_check_gc(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ /* Never clean up services that still have a process around,
+ * even if the service is formally dead. */
+ if (cgroup_good(s) > 0 ||
+ main_pid_good(s) > 0 ||
+ control_pid_good(s) > 0)
+ return true;
+
+#ifdef HAVE_SYSV_COMPAT
+ if (s->sysv_path)
+ return true;
+#endif
+
+ return false;
+}
+
+static bool service_check_snapshot(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ return !s->got_socket_fd;
+}
+
+static int service_retry_pid_file(Service *s) {
+ int r;
+
+ assert(s->pid_file);
+ assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
+
+ r = service_load_pid_file(s, false);
+ if (r < 0)
+ return r;
+
+ service_unwatch_pid_file(s);
+
+ service_enter_running(s, SERVICE_SUCCESS);
+ return 0;
+}
+
+static int service_watch_pid_file(Service *s) {
+ int r;
+
+ log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
+ r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
+ if (r < 0)
+ goto fail;
+
+ /* the pidfile might have appeared just before we set the watch */
+ service_retry_pid_file(s);
+
+ return 0;
+fail:
+ log_error("Failed to set a watch for %s's PID file %s: %s",
+ UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
+ service_unwatch_pid_file(s);
+ return r;
+}
+
+static int service_demand_pid_file(Service *s) {
+ PathSpec *ps;
+
+ assert(s->pid_file);
+ assert(!s->pid_file_pathspec);
+
+ ps = new0(PathSpec, 1);
+ if (!ps)
+ return -ENOMEM;
+
+ ps->path = strdup(s->pid_file);
+ if (!ps->path) {
+ free(ps);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(ps->path);
+
+ /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
+ * keep their PID file open all the time. */
+ ps->type = PATH_MODIFIED;
+ ps->inotify_fd = -1;
+
+ s->pid_file_pathspec = ps;
+
+ return service_watch_pid_file(s);
+}
+
+static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(fd >= 0);
+ assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
+ assert(s->pid_file_pathspec);
+ assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
+
+ log_debug("inotify event for %s", u->id);
+
+ if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
+ goto fail;
+
+ if (service_retry_pid_file(s) == 0)
+ return;
+
+ if (service_watch_pid_file(s) < 0)
+ goto fail;
+
+ return;
+fail:
+ service_unwatch_pid_file(s);
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+}
+
+static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
+ Service *s = SERVICE(u);
+ ServiceResult f;
+
+ assert(s);
+ assert(pid >= 0);
+
+ if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
+ f = SERVICE_SUCCESS;
+ else if (code == CLD_EXITED)
+ f = SERVICE_FAILURE_EXIT_CODE;
+ else if (code == CLD_KILLED)
+ f = SERVICE_FAILURE_SIGNAL;
+ else if (code == CLD_DUMPED)
+ f = SERVICE_FAILURE_CORE_DUMP;
+ else
+ assert_not_reached("Unknown code");
+
+ if (s->main_pid == pid) {
+ /* Forking services may occasionally move to a new PID.
+ * As long as they update the PID file before exiting the old
+ * PID, they're fine. */
+ if (service_load_pid_file(s, false) == 0)
+ return;
+
+ s->main_pid = 0;
+ exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
+
+ /* If this is not a forking service than the main
+ * process got started and hence we copy the exit
+ * status so that it is recorded both as main and as
+ * control process exit status */
+ if (s->main_command) {
+ s->main_command->exec_status = s->main_exec_status;
+
+ if (s->main_command->ignore)
+ f = SERVICE_SUCCESS;
+ }
+
+ log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
+ "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ if (s->main_command &&
+ s->main_command->command_next &&
+ f == SERVICE_SUCCESS) {
+
+ /* There is another command to *
+ * execute, so let's do that. */
+
+ log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
+ service_run_next_main(s);
+
+ } else {
+
+ /* The service exited, so the service is officially
+ * gone. */
+ s->main_command = NULL;
+
+ switch (s->state) {
+
+ case SERVICE_START_POST:
+ case SERVICE_RELOAD:
+ case SERVICE_STOP:
+ /* Need to wait until the operation is
+ * done */
+ break;
+
+ case SERVICE_START:
+ if (s->type == SERVICE_ONESHOT) {
+ /* This was our main goal, so let's go on */
+ if (f == SERVICE_SUCCESS)
+ service_enter_start_post(s);
+ else
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
+ break;
+ } else {
+ assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
+
+ /* Fall through */
+ }
+
+ case SERVICE_RUNNING:
+ service_enter_running(s, f);
+ break;
+
+ case SERVICE_STOP_SIGTERM:
+ case SERVICE_STOP_SIGKILL:
+
+ if (!control_pid_good(s))
+ service_enter_stop_post(s, f);
+
+ /* If there is still a control process, wait for that first */
+ break;
+
+ default:
+ assert_not_reached("Uh, main process died at wrong time.");
+ }
+ }
+
+ } else if (s->control_pid == pid) {
+
+ s->control_pid = 0;
+
+ if (s->control_command) {
+ exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
+
+ if (s->control_command->ignore)
+ f = SERVICE_SUCCESS;
+ }
+
+ log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
+ "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+
+ if (f != SERVICE_SUCCESS)
+ s->result = f;
+
+ if (s->control_command &&
+ s->control_command->command_next &&
+ f == SERVICE_SUCCESS) {
+
+ /* There is another command to *
+ * execute, so let's do that. */
+
+ log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
+ service_run_next_control(s);
+
+ } else {
+ /* No further commands for this step, so let's
+ * figure out what to do next */
+
+ s->control_command = NULL;
+ s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
+
+ log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
+
+ switch (s->state) {
+
+ case SERVICE_START_PRE:
+ if (f == SERVICE_SUCCESS)
+ service_enter_start(s);
+ else
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
+ break;
+
+ case SERVICE_START:
+ assert(s->type == SERVICE_FORKING);
+
+ if (f != SERVICE_SUCCESS) {
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
+ break;
+ }
+
+ if (s->pid_file) {
+ bool has_start_post;
+ int r;
+
+ /* Let's try to load the pid file here if we can.
+ * The PID file might actually be created by a START_POST
+ * script. In that case don't worry if the loading fails. */
+
+ has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
+ r = service_load_pid_file(s, !has_start_post);
+ if (!has_start_post && r < 0) {
+ r = service_demand_pid_file(s);
+ if (r < 0 || !cgroup_good(s))
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ break;
+ }
+ } else
+ service_search_main_pid(s);
+
+ service_enter_start_post(s);
+ break;
+
+ case SERVICE_START_POST:
+ if (f != SERVICE_SUCCESS) {
+ service_enter_stop(s, f);
+ break;
+ }
+
+ if (s->pid_file) {
+ int r;
+
+ r = service_load_pid_file(s, true);
+ if (r < 0) {
+ r = service_demand_pid_file(s);
+ if (r < 0 || !cgroup_good(s))
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ break;
+ }
+ } else
+ service_search_main_pid(s);
+
+ service_enter_running(s, SERVICE_SUCCESS);
+ break;
+
+ case SERVICE_RELOAD:
+ if (f == SERVICE_SUCCESS) {
+ service_load_pid_file(s, true);
+ service_search_main_pid(s);
+ }
+
+ s->reload_result = f;
+ service_enter_running(s, SERVICE_SUCCESS);
+ break;
+
+ case SERVICE_STOP:
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
+ break;
+
+ case SERVICE_STOP_SIGTERM:
+ case SERVICE_STOP_SIGKILL:
+ if (main_pid_good(s) <= 0)
+ service_enter_stop_post(s, f);
+
+ /* If there is still a service
+ * process around, wait until
+ * that one quit, too */
+ break;
+
+ case SERVICE_STOP_POST:
+ case SERVICE_FINAL_SIGTERM:
+ case SERVICE_FINAL_SIGKILL:
+ service_enter_dead(s, f, true);
+ break;
+
+ default:
+ assert_not_reached("Uh, control process died at wrong time.");
+ }
+ }
+ }
+
+ /* Notify clients about changed exit status */
+ unit_add_to_dbus_queue(u);
+}
+
+static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(elapsed == 1);
+
+ if (w == &s->watchdog_watch) {
+ service_handle_watchdog(s);
+ return;
+ }
+
+ assert(w == &s->timer_watch);
+
+ switch (s->state) {
+
+ case SERVICE_START_PRE:
+ case SERVICE_START:
+ log_warning("%s operation timed out. Terminating.", u->id);
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
+ break;
+
+ case SERVICE_START_POST:
+ log_warning("%s operation timed out. Stopping.", u->id);
+ service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
+ break;
+
+ case SERVICE_RELOAD:
+ log_warning("%s operation timed out. Stopping.", u->id);
+ s->reload_result = SERVICE_FAILURE_TIMEOUT;
+ service_enter_running(s, SERVICE_SUCCESS);
+ break;
+
+ case SERVICE_STOP:
+ log_warning("%s stopping timed out. Terminating.", u->id);
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
+ break;
+
+ case SERVICE_STOP_SIGTERM:
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s stopping timed out. Killing.", u->id);
+ service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
+ } else {
+ log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
+ service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
+ }
+
+ break;
+
+ case SERVICE_STOP_SIGKILL:
+ /* Uh, we sent a SIGKILL and it is still not gone?
+ * Must be something we cannot kill, so let's just be
+ * weirded out and continue */
+
+ log_warning("%s still around after SIGKILL. Ignoring.", u->id);
+ service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
+ break;
+
+ case SERVICE_STOP_POST:
+ log_warning("%s stopping timed out (2). Terminating.", u->id);
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
+ break;
+
+ case SERVICE_FINAL_SIGTERM:
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s stopping timed out (2). Killing.", u->id);
+ service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
+ } else {
+ log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
+ service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
+ }
+
+ break;
+
+ case SERVICE_FINAL_SIGKILL:
+ log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
+ service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
+ break;
+
+ case SERVICE_AUTO_RESTART:
+ log_info("%s holdoff time over, scheduling restart.", u->id);
+ service_enter_restart(s);
+ break;
+
+ default:
+ assert_not_reached("Timeout at wrong time.");
+ }
+}
+
+static void service_cgroup_notify_event(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+
+ log_debug("%s: cgroup is empty", u->id);
+
+ switch (s->state) {
+
+ /* Waiting for SIGCHLD is usually more interesting,
+ * because it includes return codes/signals. Which is
+ * why we ignore the cgroup events for most cases,
+ * except when we don't know pid which to expect the
+ * SIGCHLD for. */
+
+ case SERVICE_START:
+ case SERVICE_START_POST:
+ /* If we were hoping for the daemon to write its PID file,
+ * we can give up now. */
+ if (s->pid_file_pathspec) {
+ log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
+ service_unwatch_pid_file(s);
+ if (s->state == SERVICE_START)
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ else
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ }
+ break;
+
+ case SERVICE_RUNNING:
+ /* service_enter_running() will figure out what to do */
+ service_enter_running(s, SERVICE_SUCCESS);
+ break;
+
+ case SERVICE_STOP_SIGTERM:
+ case SERVICE_STOP_SIGKILL:
+
+ if (main_pid_good(s) <= 0 && !control_pid_good(s))
+ service_enter_stop_post(s, SERVICE_SUCCESS);
+
+ break;
+
+ case SERVICE_FINAL_SIGTERM:
+ case SERVICE_FINAL_SIGKILL:
+ if (main_pid_good(s) <= 0 && !control_pid_good(s))
+ service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
+
+ break;
+
+ default:
+ ;
+ }
+}
+
+static void service_notify_message(Unit *u, pid_t pid, char **tags) {
+ Service *s = SERVICE(u);
+ const char *e;
+
+ assert(u);
+
+ if (s->notify_access == NOTIFY_NONE) {
+ log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
+ u->id, (unsigned long) pid);
+ return;
+ }
+
+ if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
+ log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
+ u->id, (unsigned long) pid, (unsigned long) s->main_pid);
+ return;
+ }
+
+ log_debug("%s: Got message", u->id);
+
+ /* Interpret MAINPID= */
+ if ((e = strv_find_prefix(tags, "MAINPID=")) &&
+ (s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST ||
+ s->state == SERVICE_RUNNING ||
+ s->state == SERVICE_RELOAD)) {
+
+ if (parse_pid(e + 8, &pid) < 0)
+ log_warning("Failed to parse notification message %s", e);
+ else {
+ log_debug("%s: got %s", u->id, e);
+ service_set_main_pid(s, pid);
+ }
+ }
+
+ /* Interpret READY= */
+ if (s->type == SERVICE_NOTIFY &&
+ s->state == SERVICE_START &&
+ strv_find(tags, "READY=1")) {
+ log_debug("%s: got READY=1", u->id);
+
+ service_enter_start_post(s);
+ }
+
+ /* Interpret STATUS= */
+ e = strv_find_prefix(tags, "STATUS=");
+ if (e) {
+ char *t;
+
+ if (e[7]) {
+
+ if (!utf8_is_valid(e+7)) {
+ log_warning("Status message in notification is not UTF-8 clean.");
+ return;
+ }
+
+ t = strdup(e+7);
+ if (!t) {
+ log_error("Failed to allocate string.");
+ return;
+ }
+
+ log_debug("%s: got %s", u->id, e);
+
+ free(s->status_text);
+ s->status_text = t;
+ } else {
+ free(s->status_text);
+ s->status_text = NULL;
+ }
+
+ }
+ if (strv_find(tags, "WATCHDOG=1")) {
+ log_debug("%s: got WATCHDOG=1", u->id);
+ service_reset_watchdog(s);
+ }
+
+ /* Notify clients about changed status or main pid */
+ unit_add_to_dbus_queue(u);
+}
+
+#ifdef HAVE_SYSV_COMPAT
+
+#ifdef TARGET_SUSE
+static void sysv_facility_in_insserv_conf(Manager *mgr) {
+ FILE *f=NULL;
+ int r;
+
+ if (!(f = fopen("/etc/insserv.conf", "re"))) {
+ r = errno == ENOENT ? 0 : -errno;
+ goto finish;
+ }
+
+ while (!feof(f)) {
+ char l[LINE_MAX], *t;
+ char **parsed = NULL;
+
+ if (!fgets(l, sizeof(l), f)) {
+ if (feof(f))
+ break;
+
+ r = -errno;
+ log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
+ goto finish;
+ }
+
+ t = strstrip(l);
+ if (*t != '$' && *t != '<')
+ continue;
+
+ parsed = strv_split(t,WHITESPACE);
+ /* we ignore <interactive>, not used, equivalent to X-Interactive */
+ if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
+ char *facility;
+ Unit *u;
+ if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
+ continue;
+ if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
+ UnitDependency e;
+ char *dep = NULL, *name, **j;
+
+ STRV_FOREACH (j, parsed+1) {
+ if (*j[0]=='+') {
+ e = UNIT_WANTS;
+ name = *j+1;
+ }
+ else {
+ e = UNIT_REQUIRES;
+ name = *j;
+ }
+ if (sysv_translate_facility(name, NULL, &dep) < 0)
+ continue;
+
+ r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
+ free(dep);
+ }
+ }
+ free(facility);
+ }
+ strv_free(parsed);
+ }
+finish:
+ if (f)
+ fclose(f);
+
+}
+#endif
+
+static int service_enumerate(Manager *m) {
+ char **p;
+ unsigned i;
+ DIR *d = NULL;
+ char *path = NULL, *fpath = NULL, *name = NULL;
+ Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
+ Unit *service;
+ Iterator j;
+ int r;
+
+ assert(m);
+
+ if (m->running_as != MANAGER_SYSTEM)
+ return 0;
+
+ zero(runlevel_services);
+
+ STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
+ struct dirent *de;
+
+ free(path);
+ path = join(*p, "/", rcnd_table[i].path, NULL);
+ if (!path) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (d)
+ closedir(d);
+
+ if (!(d = opendir(path))) {
+ if (errno != ENOENT)
+ log_warning("opendir() failed on %s: %s", path, strerror(errno));
+
+ continue;
+ }
+
+ while ((de = readdir(d))) {
+ int a, b;
+
+ if (ignore_file(de->d_name))
+ continue;
+
+ if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
+ continue;
+
+ if (strlen(de->d_name) < 4)
+ continue;
+
+ a = undecchar(de->d_name[1]);
+ b = undecchar(de->d_name[2]);
+
+ if (a < 0 || b < 0)
+ continue;
+
+ free(fpath);
+ fpath = join(path, "/", de->d_name, NULL);
+ if (!fpath) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (access(fpath, X_OK) < 0) {
+
+ if (errno != ENOENT)
+ log_warning("access() failed on %s: %s", fpath, strerror(errno));
+
+ continue;
+ }
+
+ free(name);
+ if (!(name = sysv_translate_name(de->d_name + 3))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
+ log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
+ continue;
+ }
+
+ if (de->d_name[0] == 'S') {
+
+ if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
+ SERVICE(service)->sysv_start_priority_from_rcnd =
+ MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
+
+ SERVICE(service)->sysv_enabled = true;
+ }
+
+ if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
+ goto finish;
+
+ if ((r = set_put(runlevel_services[i], service)) < 0)
+ goto finish;
+
+ } else if (de->d_name[0] == 'K' &&
+ (rcnd_table[i].type == RUNLEVEL_DOWN ||
+ rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
+
+ if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
+ goto finish;
+
+ if ((r = set_put(shutdown_services, service)) < 0)
+ goto finish;
+ }
+ }
+ }
+
+ /* Now we loaded all stubs and are aware of the lowest
+ start-up priority for all services, not let's actually load
+ the services, this will also tell us which services are
+ actually native now */
+ manager_dispatch_load_queue(m);
+
+ /* If this is a native service, rely on native ways to pull in
+ * a service, don't pull it in via sysv rcN.d links. */
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
+ SET_FOREACH(service, runlevel_services[i], j) {
+ service = unit_follow_merge(service);
+
+ if (service->fragment_path)
+ continue;
+
+ if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
+ goto finish;
+ }
+
+ /* We honour K links only for halt/reboot. For the normal
+ * runlevels we assume the stop jobs will be implicitly added
+ * by the core logic. Also, we don't really distinguish here
+ * between the runlevels 0 and 6 and just add them to the
+ * special shutdown target. On SUSE the boot.d/ runlevel is
+ * also used for shutdown, so we add links for that too to the
+ * shutdown target.*/
+ SET_FOREACH(service, shutdown_services, j) {
+ service = unit_follow_merge(service);
+
+ if (service->fragment_path)
+ continue;
+
+ if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
+ goto finish;
+ }
+
+ r = 0;
+
+#ifdef TARGET_SUSE
+ sysv_facility_in_insserv_conf (m);
+#endif
+
+finish:
+ free(path);
+ free(fpath);
+ free(name);
+
+ for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
+ set_free(runlevel_services[i]);
+ set_free(shutdown_services);
+
+ if (d)
+ closedir(d);
+
+ return r;
+}
+#endif
+
+static void service_bus_name_owner_change(
+ Unit *u,
+ const char *name,
+ const char *old_owner,
+ const char *new_owner) {
+
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(name);
+
+ assert(streq(s->bus_name, name));
+ assert(old_owner || new_owner);
+
+ if (old_owner && new_owner)
+ log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
+ else if (old_owner)
+ log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
+ else
+ log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
+
+ s->bus_name_good = !!new_owner;
+
+ if (s->type == SERVICE_DBUS) {
+
+ /* service_enter_running() will figure out what to
+ * do */
+ if (s->state == SERVICE_RUNNING)
+ service_enter_running(s, SERVICE_SUCCESS);
+ else if (s->state == SERVICE_START && new_owner)
+ service_enter_start_post(s);
+
+ } else if (new_owner &&
+ s->main_pid <= 0 &&
+ (s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST ||
+ s->state == SERVICE_RUNNING ||
+ s->state == SERVICE_RELOAD)) {
+
+ /* Try to acquire PID from bus service */
+ log_debug("Trying to acquire PID from D-Bus name...");
+
+ bus_query_pid(u->manager, name);
+ }
+}
+
+static void service_bus_query_pid_done(
+ Unit *u,
+ const char *name,
+ pid_t pid) {
+
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(name);
+
+ log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
+
+ if (s->main_pid <= 0 &&
+ (s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST ||
+ s->state == SERVICE_RUNNING ||
+ s->state == SERVICE_RELOAD))
+ service_set_main_pid(s, pid);
+}
+
+int service_set_socket_fd(Service *s, int fd, Socket *sock) {
+
+ assert(s);
+ assert(fd >= 0);
+
+ /* This is called by the socket code when instantiating a new
+ * service for a stream socket and the socket needs to be
+ * configured. */
+
+ if (UNIT(s)->load_state != UNIT_LOADED)
+ return -EINVAL;
+
+ if (s->socket_fd >= 0)
+ return -EBUSY;
+
+ if (s->state != SERVICE_DEAD)
+ return -EAGAIN;
+
+ s->socket_fd = fd;
+ s->got_socket_fd = true;
+
+ unit_ref_set(&s->accept_socket, UNIT(sock));
+
+ return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
+}
+
+static void service_reset_failed(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+ if (s->state == SERVICE_FAILED)
+ service_set_state(s, SERVICE_DEAD);
+
+ s->result = SERVICE_SUCCESS;
+ s->reload_result = SERVICE_SUCCESS;
+}
+
+static bool service_need_daemon_reload(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(s);
+
+#ifdef HAVE_SYSV_COMPAT
+ if (s->sysv_path) {
+ struct stat st;
+
+ zero(st);
+ if (stat(s->sysv_path, &st) < 0)
+ /* What, cannot access this anymore? */
+ return true;
+
+ if (s->sysv_mtime > 0 &&
+ timespec_load(&st.st_mtim) != s->sysv_mtime)
+ return true;
+ }
+#endif
+
+ return false;
+}
+
+static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
+ Service *s = SERVICE(u);
+ int r = 0;
+ Set *pid_set = NULL;
+
+ assert(s);
+
+ if (s->main_pid <= 0 && who == KILL_MAIN) {
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
+ return -ESRCH;
+ }
+
+ if (s->control_pid <= 0 && who == KILL_CONTROL) {
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
+ return -ESRCH;
+ }
+
+ if (who == KILL_CONTROL || who == KILL_ALL)
+ if (s->control_pid > 0)
+ if (kill(s->control_pid, signo) < 0)
+ r = -errno;
+
+ if (who == KILL_MAIN || who == KILL_ALL)
+ if (s->main_pid > 0)
+ if (kill(s->main_pid, signo) < 0)
+ r = -errno;
+
+ if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
+ int q;
+
+ if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
+ return -ENOMEM;
+
+ /* Exclude the control/main pid from being killed via the cgroup */
+ if (s->control_pid > 0)
+ if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
+ r = q;
+ goto finish;
+ }
+
+ if (s->main_pid > 0)
+ if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
+ r = q;
+ goto finish;
+ }
+
+ if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
+ if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
+ r = q;
+ }
+
+finish:
+ if (pid_set)
+ set_free(pid_set);
+
+ return r;
+}
+
+static const char* const service_state_table[_SERVICE_STATE_MAX] = {
+ [SERVICE_DEAD] = "dead",
+ [SERVICE_START_PRE] = "start-pre",
+ [SERVICE_START] = "start",
+ [SERVICE_START_POST] = "start-post",
+ [SERVICE_RUNNING] = "running",
+ [SERVICE_EXITED] = "exited",
+ [SERVICE_RELOAD] = "reload",
+ [SERVICE_STOP] = "stop",
+ [SERVICE_STOP_SIGTERM] = "stop-sigterm",
+ [SERVICE_STOP_SIGKILL] = "stop-sigkill",
+ [SERVICE_STOP_POST] = "stop-post",
+ [SERVICE_FINAL_SIGTERM] = "final-sigterm",
+ [SERVICE_FINAL_SIGKILL] = "final-sigkill",
+ [SERVICE_FAILED] = "failed",
+ [SERVICE_AUTO_RESTART] = "auto-restart",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
+
+static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
+ [SERVICE_RESTART_NO] = "no",
+ [SERVICE_RESTART_ON_SUCCESS] = "on-success",
+ [SERVICE_RESTART_ON_FAILURE] = "on-failure",
+ [SERVICE_RESTART_ON_ABORT] = "on-abort",
+ [SERVICE_RESTART_ALWAYS] = "always"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
+
+static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
+ [SERVICE_SIMPLE] = "simple",
+ [SERVICE_FORKING] = "forking",
+ [SERVICE_ONESHOT] = "oneshot",
+ [SERVICE_DBUS] = "dbus",
+ [SERVICE_NOTIFY] = "notify"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
+
+static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
+ [SERVICE_EXEC_START_PRE] = "ExecStartPre",
+ [SERVICE_EXEC_START] = "ExecStart",
+ [SERVICE_EXEC_START_POST] = "ExecStartPost",
+ [SERVICE_EXEC_RELOAD] = "ExecReload",
+ [SERVICE_EXEC_STOP] = "ExecStop",
+ [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
+
+static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
+ [NOTIFY_NONE] = "none",
+ [NOTIFY_MAIN] = "main",
+ [NOTIFY_ALL] = "all"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
+
+static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
+ [SERVICE_SUCCESS] = "success",
+ [SERVICE_FAILURE_RESOURCES] = "resources",
+ [SERVICE_FAILURE_TIMEOUT] = "timeout",
+ [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
+ [SERVICE_FAILURE_SIGNAL] = "signal",
+ [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
+ [SERVICE_FAILURE_WATCHDOG] = "watchdog"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
+
+static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
+ [SERVICE_START_LIMIT_NONE] = "none",
+ [SERVICE_START_LIMIT_REBOOT] = "reboot",
+ [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
+ [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
+};
+DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
+
+const UnitVTable service_vtable = {
+ .suffix = ".service",
+ .object_size = sizeof(Service),
+ .sections =
+ "Unit\0"
+ "Service\0"
+ "Install\0",
+ .show_status = true,
+
+ .init = service_init,
+ .done = service_done,
+ .load = service_load,
+
+ .coldplug = service_coldplug,
+
+ .dump = service_dump,
+
+ .start = service_start,
+ .stop = service_stop,
+ .reload = service_reload,
+
+ .can_reload = service_can_reload,
+
+ .kill = service_kill,
+
+ .serialize = service_serialize,
+ .deserialize_item = service_deserialize_item,
+
+ .active_state = service_active_state,
+ .sub_state_to_string = service_sub_state_to_string,
+
+ .check_gc = service_check_gc,
+ .check_snapshot = service_check_snapshot,
+
+ .sigchld_event = service_sigchld_event,
+ .timer_event = service_timer_event,
+ .fd_event = service_fd_event,
+
+ .reset_failed = service_reset_failed,
+
+ .need_daemon_reload = service_need_daemon_reload,
+
+ .cgroup_notify_empty = service_cgroup_notify_event,
+ .notify_message = service_notify_message,
+
+ .bus_name_owner_change = service_bus_name_owner_change,
+ .bus_query_pid_done = service_bus_query_pid_done,
+
+ .bus_interface = "org.freedesktop.systemd1.Service",
+ .bus_message_handler = bus_service_message_handler,
+ .bus_invalidating_properties = bus_service_invalidating_properties,
+
+#ifdef HAVE_SYSV_COMPAT
+ .enumerate = service_enumerate
+#endif
+};