service.c revision 88f3e0c91f08c65a479e1aa09f171550b744d829
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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 "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
typedef enum RunlevelType {
} RunlevelType;
static const struct {
const char *path;
const char *target;
const RunlevelType type;
} rcnd_table[] = {
/* Standard SysV runlevels for start-up */
#ifdef TARGET_SUSE
/* SUSE style boot.d */
#endif
/* Debian style rcS.d */
#endif
/* Standard SysV runlevels for shutdown */
/* 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
};
#define RUNLEVELS_UP "12345"
/* #define RUNLEVELS_DOWN "06" */
#define RUNLEVELS_BOOT "bBsS"
#endif
};
static void service_init(Unit *u) {
assert(u);
s->type = _SERVICE_TYPE_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;
}
static void service_unwatch_control_pid(Service *s) {
assert(s);
if (s->control_pid <= 0)
return;
s->control_pid = 0;
}
static void service_unwatch_main_pid(Service *s) {
assert(s);
if (s->main_pid <= 0)
return;
s->main_pid = 0;
}
static void service_unwatch_pid_file(Service *s) {
if (!s->pid_file_pathspec)
return;
free(s->pid_file_pathspec);
s->pid_file_pathspec = NULL;
}
assert(s);
if (pid <= 1)
return -EINVAL;
return -EINVAL;
s->main_pid_known = true;
log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
s->main_pid_alien = true;
} else
s->main_pid_alien = false;
return 0;
}
static void service_close_socket_fd(Service *s) {
assert(s);
if (s->socket_fd < 0)
return;
s->socket_fd = -1;
}
static void service_connection_unref(Service *s) {
assert(s);
if (!UNIT_DEREF(s->accept_socket))
return;
unit_ref_unset(&s->accept_socket);
}
static void service_stop_watchdog(Service *s) {
assert(s);
s->watchdog_timestamp.realtime = 0;
s->watchdog_timestamp.monotonic = 0;
}
static void service_handle_watchdog(Service *s) {
int r;
assert(s);
if (s->watchdog_usec == 0)
return;
if (offset >= s->watchdog_usec) {
service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
return;
}
if (r < 0)
}
static void service_reset_watchdog(Service *s) {
assert(s);
}
static void service_done(Unit *u) {
assert(s);
#ifdef HAVE_SYSV_COMPAT
free(s->sysv_runlevels);
s->sysv_runlevels = NULL;
#endif
free(s->status_text);
s->status_text = NULL;
s->control_command = NULL;
s->main_command = NULL;
/* This will leak a process, but at least no memory or any of
* our resources */
if (s->bus_name) {
unit_unwatch_bus_name(u, s->bus_name);
}
unit_ref_unset(&s->accept_socket);
unit_unwatch_timer(u, &s->timer_watch);
}
#ifdef HAVE_SYSV_COMPAT
static char *sysv_translate_name(const char *name) {
char *r;
return NULL;
/* Drop Debian-style .sh suffix */
#endif
#ifdef TARGET_SUSE
/* Drop SuSE-style boot. prefix */
#endif
#ifdef TARGET_FRUGALWARE
/* Drop Frugalware-style rc. prefix */
#endif
else
/* Normal init scripts */
return 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,
* $network is provided by network-up which is ordered
* after network which actually starts interfaces.
* To break the loop, just ignore it */
"network", SPECIAL_NETWORK_TARGET,
#endif
"named", SPECIAL_NSS_LOOKUP_TARGET,
"portmap", SPECIAL_RPCBIND_TARGET,
"remote_fs", SPECIAL_REMOTE_FS_TARGET,
"syslog", SPECIAL_SYSLOG_TARGET,
"time", SPECIAL_TIME_SYNC_TARGET,
/* common extensions */
"mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
"x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
"null", NULL,
"mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
#endif
#ifdef TARGET_FEDORA
"smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
"httpd", SPECIAL_HTTP_DAEMON_TARGET,
#endif
#ifdef TARGET_SUSE
"smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
#endif
};
unsigned i;
char *r;
const char *n;
continue;
if (!table[i+1])
return 0;
return -ENOMEM;
goto finish;
}
/* If we don't know this name, fallback heuristics to figure
* out whether something is a target or a service alias. */
if (*name == '$') {
if (!unit_prefix_is_valid(n))
return -EINVAL;
/* Facilities starting with $ are most likely targets */
/* 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;
*_r = r;
return 1;
}
static int sysv_fix_order(Service *s) {
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. */
Service *t;
if (s == t)
continue;
continue;
if (t->sysv_start_priority < 0)
continue;
/* If both units have modern headers we don't care
* about the priorities */
continue;
d = UNIT_AFTER;
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? */
return r;
}
return 0;
}
ExecCommand *c;
return NULL;
free(c);
return NULL;
}
free(c);
return NULL;
}
return c;
}
static int sysv_exec_commands(Service *s) {
ExecCommand *c;
assert(s);
return -ENOMEM;
return -ENOMEM;
return -ENOMEM;
return 0;
}
FILE *f;
Unit *u;
unsigned line = 0;
int r;
enum {
LSB,
char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
assert(s);
u = UNIT(s);
goto finish;
}
r = -errno;
goto finish;
}
r = -ENOMEM;
goto finish;
}
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;
goto finish;
}
line++;
t = strstrip(l);
if (*t != '#')
continue;
s->sysv_has_lsb = true;
continue;
}
continue;
}
t++;
t += strspn(t, WHITESPACE);
/* Try to parse Red Hat style chkconfig headers */
if (startswith_no_case(t, "chkconfig:")) {
int start_priority;
char runlevels[16], *k;
&start_priority) != 2) {
continue;
}
/* A start priority gathered from the
* symlink farms is preferred over the
* data from the LSB header. */
else
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:")) {
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;
} else if (startswith_no_case(t, "pidfile:")) {
char *fn;
if (!path_is_absolute(fn)) {
continue;
}
r = -ENOMEM;
goto finish;
}
}
} else if (state == DESCRIPTION) {
/* Try to parse Red Hat style description
* continuation */
char *j;
if (t[k-1] == '\\')
t[k-1] = 0;
else
if ((j = strstrip(t)) && *j) {
char *d = NULL;
else
d = strdup(j);
if (!d) {
r = -ENOMEM;
goto finish;
}
}
if (startswith_no_case(t, "Provides:")) {
char *i, *w;
size_t z;
FOREACH_WORD_QUOTED(w, z, t+9, i) {
char *n, *m;
if (!(n = strndup(w, z))) {
r = -ENOMEM;
goto finish;
}
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! */
if (r < 0)
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;
char *n, *m;
if (!(n = strndup(w, z))) {
r = -ENOMEM;
goto finish;
}
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)
free(m);
}
} else if (startswith_no_case(t, "Default-Start:")) {
char *k, *d;
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;
if ((j = strstrip(t+12)) && *j) {
if (!(d = strdup(j))) {
r = -ENOMEM;
goto finish;
}
} else
d = NULL;
long_description = d;
} else if (startswith_no_case(t, "Short-Description:")) {
char *d, *j;
if ((j = strstrip(t+18)) && *j) {
if (!(d = strdup(j))) {
r = -ENOMEM;
goto finish;
}
} else
d = NULL;
short_description = d;
} else if (state == LSB_DESCRIPTION) {
char *j;
if ((j = strstrip(t)) && *j) {
char *d = NULL;
if (long_description)
else
d = strdup(j);
if (!d) {
r = -ENOMEM;
goto finish;
}
long_description = d;
}
} else
}
}
}
if ((r = sysv_exec_commands(s)) < 0)
goto finish;
if (s->sysv_runlevels &&
/* Service has both boot and "up" runlevels
configured. Kill the "up" ones. */
}
/* 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
/* 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;
/* We use the long description only if
* no short description is set. */
if (short_description)
else if (chkconfig_description)
else if (long_description)
else
description = NULL;
if (description) {
char *d;
r = -ENOMEM;
goto finish;
}
u->description = d;
}
* takes precedence over what is stored as default in the LSB
* header */
if (s->sysv_start_priority_from_rcnd >= 0)
u->load_state = UNIT_LOADED;
r = 0;
if (f)
fclose(f);
return r;
}
char **p;
assert(s);
/* For SysV services we strip the boot.*, rc.* and *.sh
return -ENOENT;
#endif
#ifdef TARGET_SUSE
return -ENOENT;
#endif
#ifdef TARGET_FRUGALWARE
return -ENOENT;
#endif
char *path;
int r;
if (!path)
return -ENOMEM;
r = service_load_sysv_path(s, path);
/* Try Debian style *.sh source'able init scripts */
r = service_load_sysv_path(s, path);
}
#endif
#ifdef TARGET_SUSE
/* Try SUSE style boot.* init scripts */
if (!path)
return -ENOMEM;
/* Drop .service suffix */
r = service_load_sysv_path(s, path);
}
#endif
#ifdef TARGET_FRUGALWARE
/* Try Frugalware style rc.* init scripts */
if (!path)
return -ENOMEM;
/* Drop .service suffix */
r = service_load_sysv_path(s, path);
}
#endif
if (r < 0)
return r;
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 ... */
return 0;
if ((r = service_load_sysv_name(s, t)) < 0)
return r;
continue;
if ((r = service_load_sysv_name(s, t)) < 0)
return r;
break;
}
return 0;
}
#endif
static int fsck_fix_order(Service *s) {
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. */
Service *t;
if (s == t)
continue;
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;
return r;
}
return 0;
}
static int service_verify(Service *s) {
assert(s);
return 0;
if (!s->exec_command[SERVICE_EXEC_START]) {
return -EINVAL;
}
if (s->type != SERVICE_ONESHOT &&
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;
}
log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
return -EINVAL;
}
log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", 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 ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
return r;
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
* since in that case we want output to default to the same
* place as we read input from. */
}
static int service_load(Unit *u) {
int r;
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) {
if (s->type == _SERVICE_TYPE_INVALID)
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;
s->notify_access = NOTIFY_MAIN;
s->notify_access = NOTIFY_MAIN;
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);
}
const char *prefix2;
char *p2;
assert(s);
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",
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",
if (s->pid_file)
fprintf(f,
"%sPIDFile: %s\n",
if (s->bus_name)
fprintf(f,
"%sBusName: %s\n"
"%sBus Name Good: %s\n",
for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
if (!s->exec_command[c])
continue;
fprintf(f, "%s-> %s:\n",
}
#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",
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);
}
char *k;
int r;
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.",
return r;
}
free(k);
if (r < 0)
return r;
if (may_warn)
log_info("PID %lu read from file %s does not exist.",
return -ESRCH;
}
if (s->main_pid_known) {
return 0;
log_debug("Main PID changing: %lu -> %lu",
s->main_pid_known = false;
} else
if ((r = service_set_main_pid(s, pid)) < 0)
return r;
/* FIXME: we need to do something here */
return r;
return 0;
}
static int service_search_main_pid(Service *s) {
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;
return -ENOENT;
if ((r = service_set_main_pid(s, pid)) < 0)
return r;
/* FIXME: we need to do something here */
return r;
return 0;
}
Iterator i;
Unit *u;
assert(s);
/* Notifies all our sockets when we die */
if (s->socket_fd >= 0)
return;
if (u->type == UNIT_SOCKET)
return;
}
assert(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 &&
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) {
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) {
s->control_command = NULL;
}
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 ||
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 &&
}
if (state == SERVICE_STOP)
/* For the inactive states unit_notify() will trim the cgroup,
* but for exit we have to do that ourselves... */
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) {
int r;
assert(s);
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) {
usec_t k;
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 ||
if (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 ||
if (s->control_pid > 0)
return r;
if (s->deserialized_state == SERVICE_START_POST ||
service_set_state(s, s->deserialized_state);
}
return 0;
}
Iterator i;
int r;
unsigned rn_fds = 0;
Unit *u;
assert(s);
if (s->socket_fd >= 0)
return 0;
int *cfds;
unsigned cn_fds;
if (u->type != UNIT_SOCKET)
continue;
goto fail;
if (!cfds)
continue;
if (!rfds) {
} else {
int *t;
r = -ENOMEM;
goto fail;
}
rfds = t;
}
}
return 0;
fail:
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,
bool is_control,
int r;
assert(s);
assert(c);
if (pass_fds ||
if (s->socket_fd >= 0) {
n_fds = 1;
} else {
goto fail;
}
}
if (timeout && s->timeout_usec) {
goto fail;
} else
r = -ENOMEM;
goto fail;
}
r = -ENOMEM;
goto fail;
}
if (set_notify_socket)
r = -ENOMEM;
goto fail;
}
if (s->main_pid > 0)
r = -ENOMEM;
goto fail;
}
if (s->watchdog_usec > 0)
r = -ENOMEM;
goto fail;
}
NULL))) {
r = -ENOMEM;
goto fail;
}
r = exec_spawn(c,
argv,
&s->exec_context,
UNIT(s)->cgroup_bondings,
UNIT(s)->cgroup_attributes,
&pid);
if (r < 0)
goto fail;
/* FIXME: we need to do something here */
goto fail;
return 0;
fail:
if (timeout)
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)
/* .. 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);
return r;
return !r;
}
int r;
assert(s);
if (f != SERVICE_SUCCESS)
s->result = f;
if (allow_restart &&
!s->forbid_restart &&
(s->restart == SERVICE_RESTART_ALWAYS ||
s->result == SERVICE_FAILURE_CORE_DUMP)))) {
if (r < 0)
goto fail;
} else
s->forbid_restart = false;
return;
fail:
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
}
int r;
assert(s);
if (f != SERVICE_SUCCESS)
s->result = f;
r = service_spawn(s,
s->control_command,
true,
false,
true,
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
} else
return;
fail:
}
int r;
bool wait_for_exit = false;
assert(s);
if (f != SERVICE_SUCCESS)
s->result = f;
int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
if (s->main_pid > 0) {
else
wait_for_exit = !s->main_pid_alien;
}
if (s->control_pid > 0) {
else
wait_for_exit = true;
}
r = -ENOMEM;
goto fail;
}
if (s->main_pid > 0)
goto fail;
if (s->control_pid > 0)
goto fail;
if (r < 0) {
} else if (r > 0)
wait_for_exit = true;
}
}
if (wait_for_exit) {
if (s->timeout_usec > 0)
goto fail;
service_set_state(s, state);
else
service_enter_dead(s, SERVICE_SUCCESS, true);
return;
fail:
else
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
if (pid_set)
}
int r;
assert(s);
if (f != SERVICE_SUCCESS)
s->result = f;
r = service_spawn(s,
s->control_command,
true,
false,
false,
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
} else
return;
fail:
}
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);
else if (s->remain_after_exit)
else
}
static void service_enter_start_post(Service *s) {
int r;
assert(s);
if (s->watchdog_usec > 0)
r = service_spawn(s,
s->control_command,
true,
false,
false,
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
} else
return;
fail:
}
static void service_enter_start(Service *s) {
int r;
ExecCommand *c;
assert(s);
if (s->type == SERVICE_FORKING)
else
/* 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. */
if (s->type == SERVICE_FORKING) {
s->main_command = NULL;
} else {
s->control_command = NULL;
}
r = service_spawn(s,
c,
true,
true,
true,
true,
s->notify_access != NOTIFY_NONE,
false,
&pid);
if (r < 0)
goto fail;
/* For simple services we immediately start
* the START_POST binaries. */
service_set_main_pid(s, pid);
} else if (s->type == SERVICE_FORKING) {
/* For forking services we wait until the start
* process exited. */
s->control_pid = pid;
} 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);
} else
assert_not_reached("Unknown service type");
return;
fail:
}
static void service_enter_start_pre(Service *s) {
int r;
assert(s);
/* Before we start anything, let's clear up what might
* be left from previous runs. */
r = service_spawn(s,
s->control_command,
true,
false,
true,
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
} else
return;
fail:
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
}
static void service_enter_restart(Service *s) {
int r;
assert(s);
log_info("Job pending for unit, delaying automatic restart.");
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. */
if (r < 0)
goto fail;
return;
fail:
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
}
static void service_enter_reload(Service *s) {
int r;
assert(s);
r = service_spawn(s,
s->control_command,
true,
false,
false,
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
} else
return;
fail:
}
static void service_run_next_control(Service *s) {
int r;
assert(s);
assert(s->control_command);
r = service_spawn(s,
s->control_command,
true,
false,
s->control_command_id == SERVICE_EXEC_START_PRE ||
false,
true,
&s->control_pid);
if (r < 0)
goto fail;
return;
fail:
if (s->state == SERVICE_START_PRE)
else if (s->state == SERVICE_STOP)
else if (s->state == SERVICE_STOP_POST)
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
else if (s->state == SERVICE_RELOAD) {
} else
}
static void service_run_next_main(Service *s) {
int r;
assert(s);
assert(s->main_command);
r = service_spawn(s,
s->main_command,
false,
true,
true,
true,
true,
s->notify_access != NOTIFY_NONE,
false,
&pid);
if (r < 0)
goto fail;
service_set_main_pid(s, pid);
return;
fail:
}
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:
break;
case SERVICE_START_LIMIT_REBOOT: {
int r;
r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
if (r < 0) {
}
break;
}
break;
break;
default:
assert_not_reached("Unknown StartLimitAction.");
}
return -ECANCELED;
}
static int service_start(Unit *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;
/* 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;
return 0;
}
static int service_stop(Unit *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) {
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) {
return 0;
}
s->state == SERVICE_EXITED);
return 0;
}
static int service_reload(Unit *u) {
assert(s);
return 0;
}
static bool service_can_reload(Unit *u) {
assert(s);
return !!s->exec_command[SERVICE_EXEC_RELOAD];
}
assert(u);
assert(f);
if (s->control_pid > 0)
if (s->main_pid_known && s->main_pid > 0)
if (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;
return 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);
}
}
if (dual_timestamp_is_set(&s->watchdog_timestamp))
return 0;
}
assert(u);
else
s->deserialized_state = state;
if (f < 0)
else if (f != SERVICE_SUCCESS)
s->result = f;
if (f < 0)
else if (f != SERVICE_SUCCESS)
s->reload_result = f;
else
s->control_pid = pid;
else
int b;
if ((b = parse_boolean(value)) < 0)
else
s->main_pid_known = b;
char *t;
free(s->status_text);
s->status_text = t;
}
else {
s->control_command_id = id;
}
int fd;
else {
if (s->socket_fd >= 0)
}
else
int i;
else
s->main_exec_status.code = i;
int i;
else
s->main_exec_status.status = i;
else
return 0;
}
assert(u);
}
static const char *service_sub_state_to_string(Unit *u) {
assert(u);
}
static bool service_check_gc(Unit *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) {
assert(s);
return !s->got_socket_fd;
}
static int service_retry_pid_file(Service *s) {
int r;
r = service_load_pid_file(s, false);
if (r < 0)
return r;
return 0;
}
static int service_watch_pid_file(Service *s) {
int r;
if (r < 0)
goto fail;
/* the pidfile might have appeared just before we set the watch */
return 0;
fail:
log_error("Failed to set a watch for %s's PID file %s: %s",
return r;
}
static int service_demand_pid_file(Service *s) {
assert(!s->pid_file_pathspec);
if (!ps)
return -ENOMEM;
return -ENOMEM;
}
/* PATH_CHANGED would not be enough. There are daemons (sendmail) that
* keep their PID file open all the time. */
s->pid_file_pathspec = ps;
return service_watch_pid_file(s);
}
assert(s);
assert(s->pid_file_pathspec);
goto fail;
if (service_retry_pid_file(s) == 0)
return;
if (service_watch_pid_file(s) < 0)
goto fail;
return;
fail:
}
assert(s);
f = SERVICE_SUCCESS;
else if (code == CLD_EXITED)
else if (code == CLD_KILLED)
else if (code == CLD_DUMPED)
else
assert_not_reached("Unknown code");
/* 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;
/* 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) {
if (s->main_command->ignore)
f = SERVICE_SUCCESS;
}
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. */
} 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)
else
break;
} else {
/* 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) {
if (s->control_command->ignore)
f = SERVICE_SUCCESS;
}
if (f != SERVICE_SUCCESS)
s->result = f;
/* Immediately get rid of the cgroup, so that the
* kernel doesn't delay the cgroup empty messages for
* the service cgroup any longer than necessary */
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));
} else {
/* No further commands for this step, so let's
* figure out what to do next */
s->control_command = NULL;
switch (s->state) {
case SERVICE_START_PRE:
if (f == SERVICE_SUCCESS)
else
break;
case SERVICE_START:
if (f != SERVICE_SUCCESS) {
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. */
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))
break;
}
} else
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))
break;
}
} else
break;
case SERVICE_RELOAD:
if (f == SERVICE_SUCCESS) {
service_load_pid_file(s, true);
}
s->reload_result = f;
break;
case SERVICE_STOP:
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 */
}
assert(s);
if (w == &s->watchdog_watch) {
return;
}
assert(w == &s->timer_watch);
switch (s->state) {
case SERVICE_START_PRE:
case SERVICE_START:
break;
case SERVICE_START_POST:
break;
case SERVICE_RELOAD:
break;
case SERVICE_STOP:
break;
case SERVICE_STOP_SIGTERM:
if (s->exec_context.send_sigkill) {
} else {
}
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 */
break;
case SERVICE_STOP_POST:
break;
case SERVICE_FINAL_SIGTERM:
if (s->exec_context.send_sigkill) {
} else {
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
}
break;
case SERVICE_FINAL_SIGKILL:
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
break;
case SERVICE_AUTO_RESTART:
break;
default:
assert_not_reached("Timeout at wrong time.");
}
}
static void service_cgroup_notify_event(Unit *u) {
assert(u);
switch (s->state) {
/* Waiting for SIGCHLD is usually more interesting,
* 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) {
if (s->state == SERVICE_START)
else
}
break;
case SERVICE_RUNNING:
/* service_enter_running() will figure out what to do */
break;
case SERVICE_STOP_SIGTERM:
case SERVICE_STOP_SIGKILL:
if (main_pid_good(s) <= 0 && !control_pid_good(s))
break;
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
if (main_pid_good(s) <= 0 && !control_pid_good(s))
break;
default:
;
}
}
const char *e;
assert(u);
if (s->notify_access == NOTIFY_NONE) {
log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
return;
}
log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
return;
}
/* Interpret MAINPID= */
(s->state == SERVICE_START ||
s->state == SERVICE_START_POST ||
s->state == SERVICE_RUNNING ||
s->state == SERVICE_RELOAD)) {
log_warning("Failed to parse notification message %s", e);
else {
service_set_main_pid(s, pid);
}
}
/* Interpret READY= */
if (s->type == SERVICE_NOTIFY &&
s->state == SERVICE_START &&
}
/* Interpret 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;
}
free(s->status_text);
s->status_text = t;
} else {
free(s->status_text);
s->status_text = NULL;
}
}
}
/* Notify clients about changed status or main pid */
}
#ifdef HAVE_SYSV_COMPAT
#ifdef TARGET_SUSE
int r;
goto finish;
}
while (!feof(f)) {
char l[LINE_MAX], *t;
if (!fgets(l, sizeof(l), f)) {
if (feof(f))
break;
r = -errno;
goto finish;
}
t = strstrip(l);
if (*t != '$' && *t != '<')
continue;
/* we ignore <interactive>, not used, equivalent to X-Interactive */
char *facility;
Unit *u;
continue;
if (*j[0]=='+') {
e = UNIT_WANTS;
name = *j+1;
}
else {
e = UNIT_REQUIRES;
name = *j;
}
continue;
}
}
}
}
if (f)
fclose(f);
}
#endif
static int service_enumerate(Manager *m) {
char **p;
unsigned i;
Iterator j;
int r;
assert(m);
if (m->running_as != MANAGER_SYSTEM)
return 0;
for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
if (!path) {
r = -ENOMEM;
goto finish;
}
if (d)
closedir(d);
continue;
}
int a, b;
continue;
continue;
continue;
if (a < 0 || b < 0)
continue;
if (!fpath) {
r = -ENOMEM;
goto finish;
}
continue;
}
r = -ENOMEM;
goto finish;
}
continue;
}
}
goto finish;
goto finish;
goto finish;
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 */
/* 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 ++)
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;
}
* 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.*/
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
#endif
for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
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) {
assert(s);
else if (old_owner)
else
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)
} 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...");
}
}
static void service_bus_query_pid_done(
Unit *u,
const char *name,
assert(s);
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);
}
assert(s);
/* This is called by the socket code when instantiating a new
* service for a stream socket and the socket needs to be
* configured. */
return -EINVAL;
if (s->socket_fd >= 0)
return -EBUSY;
if (s->state != SERVICE_DEAD)
return -EAGAIN;
s->got_socket_fd = true;
}
static void service_reset_failed(Unit *u) {
assert(s);
if (s->state == SERVICE_FAILED)
s->result = SERVICE_SUCCESS;
s->reload_result = SERVICE_SUCCESS;
}
static bool service_need_daemon_reload(Unit *u) {
assert(s);
#ifdef HAVE_SYSV_COMPAT
if (s->sysv_path) {
/* What, cannot access this anymore? */
return true;
if (s->sysv_mtime > 0 &&
return true;
}
#endif
return false;
}
int r = 0;
assert(s);
return -ESRCH;
}
return -ESRCH;
}
if (s->control_pid > 0)
r = -errno;
if (s->main_pid > 0)
r = -errno;
int q;
return -ENOMEM;
if (s->control_pid > 0)
r = q;
goto finish;
}
if (s->main_pid > 0)
r = q;
goto finish;
}
if (q < 0)
r = q;
}
if (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",
};
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"
};
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",
[SERVICE_IDLE] = "idle"
};
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",
};
static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
[NOTIFY_NONE] = "none",
[NOTIFY_MAIN] = "main",
[NOTIFY_ALL] = "all"
};
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"
};
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"
};
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,
.dump = service_dump,
.start = service_start,
.stop = service_stop,
.reload = service_reload,
.kill = service_kill,
.bus_interface = "org.freedesktop.systemd1.Service",
#ifdef HAVE_SYSV_COMPAT
#endif
};