-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include "dbus-unit.h"
#include "special.h"
#include "cgroup-util.h"
+#include "missing.h"
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
if (UNIT_VTABLE(u)->no_gc)
return true;
+ if (u->meta.no_gc)
+ return true;
+
if (u->meta.job)
return true;
/* After a reload it might happen that a unit is not correctly
* loaded but still has a process around. That's why we won't
- * shortcut failed loading to UNIT_INACTIVE_MAINTENANCE. */
+ * shortcut failed loading to UNIT_INACTIVE_FAILED. */
return UNIT_VTABLE(u)->active_state(u);
}
assert(other);
assert(d < _UNIT_DEPENDENCY_MAX);
+ /* Fix backwards pointers */
SET_FOREACH(back, other->meta.dependencies[d], i) {
UnitDependency k;
return -EINVAL;
if (other->meta.load_state != UNIT_STUB &&
- other->meta.load_state != UNIT_FAILED)
+ other->meta.load_state != UNIT_ERROR)
return -EEXIST;
if (other->meta.job)
return -EEXIST;
- if (!UNIT_IS_INACTIVE_OR_MAINTENANCE(unit_active_state(other)))
+ if (!UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(other)))
return -EEXIST;
/* Merge names */
if (u->meta.description)
return u->meta.description;
- return u->meta.id;
+ return strna(u->meta.id);
}
void unit_dump(Unit *u, FILE *f, const char *prefix) {
fprintf(f,
"%s\tMerged into: %s\n",
prefix, u->meta.merged_into->meta.id);
+ else if (u->meta.load_state == UNIT_ERROR)
+ fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror(-u->meta.load_error));
+
if (u->meta.job)
job_dump(u->meta.job, f, prefix2);
return 0;
}
-/* Common implementation for multiple backends */
-int unit_load_nop(Unit *u) {
+int unit_add_default_target_dependency(Unit *u, Unit *target) {
assert(u);
+ assert(target);
- if (u->meta.load_state == UNIT_STUB)
- u->meta.load_state = UNIT_LOADED;
+ if (target->meta.type != UNIT_TARGET)
+ return 0;
+
+ /* Only add the dependency if boths units are loaded, so that
+ * that loop check below is reliable */
+ if (u->meta.load_state != UNIT_LOADED ||
+ target->meta.load_state != UNIT_LOADED)
+ return 0;
+
+ /* Don't create loops */
+ if (set_get(target->meta.dependencies[UNIT_BEFORE], u))
+ return 0;
+
+ return unit_add_dependency(target, UNIT_AFTER, u, true);
+}
+
+static int unit_add_default_dependencies(Unit *u) {
+ Unit *target;
+ Iterator i;
+ int r;
+
+ assert(u);
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
+
+ SET_FOREACH(target, u->meta.dependencies[UNIT_WANTED_BY], i)
+ if ((r = unit_add_default_target_dependency(u, target)) < 0)
+ return r;
return 0;
}
goto fail;
}
+ if (u->meta.load_state == UNIT_LOADED &&
+ u->meta.default_dependencies)
+ if ((r = unit_add_default_dependencies(u)) < 0)
+ goto fail;
+
assert((u->meta.load_state != UNIT_MERGED) == !u->meta.merged_into);
unit_add_to_dbus_queue(unit_follow_merge(u));
return 0;
fail:
- u->meta.load_state = UNIT_FAILED;
+ u->meta.load_state = UNIT_ERROR;
+ u->meta.load_error = r;
unit_add_to_dbus_queue(u);
- log_notice("Failed to load configuration for %s: %s", u->meta.id, strerror(-r));
+ log_debug("Failed to load configuration for %s: %s", u->meta.id, strerror(-r));
return r;
}
return !!UNIT_VTABLE(u)->start;
}
+bool unit_can_isolate(Unit *u) {
+ assert(u);
+
+ return unit_can_start(u) &&
+ u->meta.allow_isolate;
+}
+
/* Errors:
* -EBADR: This unit type does not support stopping.
* -EALREADY: Unit is already stopped.
assert(u);
state = unit_active_state(u);
- if (UNIT_IS_INACTIVE_OR_MAINTENANCE(state))
+ if (UNIT_IS_INACTIVE_OR_FAILED(state))
return -EALREADY;
if (!UNIT_VTABLE(u)->stop)
return -EBADR;
state = unit_active_state(u);
- if (unit_active_state(u) == UNIT_RELOADING)
+ if (state == UNIT_RELOADING)
return -EALREADY;
- if (unit_active_state(u) != UNIT_ACTIVE)
+ if (state != UNIT_ACTIVE)
return -ENOEXEC;
unit_add_to_dbus_queue(u);
return UNIT_VTABLE(u)->can_reload(u);
}
-static void unit_check_uneeded(Unit *u) {
+static void unit_check_unneeded(Unit *u) {
Iterator i;
Unit *other;
/* Garbage collect services that might not be needed anymore, if enabled */
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_WANTS], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i)
if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other)))
- unit_check_uneeded(other);
+ unit_check_unneeded(other);
}
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) {
* even if they might map to the same high-level
* UnitActiveState! That means that ns == os is OK an expected
* behaviour here. For example: if a mount point is remounted
- * this function will be called too and the utmp code below
- * relies on that! */
+ * this function will be called too! */
dual_timestamp_get(&ts);
- if (UNIT_IS_INACTIVE_OR_MAINTENANCE(os) && !UNIT_IS_INACTIVE_OR_MAINTENANCE(ns))
+ if (UNIT_IS_INACTIVE_OR_FAILED(os) && !UNIT_IS_INACTIVE_OR_FAILED(ns))
u->meta.inactive_exit_timestamp = ts;
- else if (!UNIT_IS_INACTIVE_OR_MAINTENANCE(os) && UNIT_IS_INACTIVE_OR_MAINTENANCE(ns))
+ else if (!UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_INACTIVE_OR_FAILED(ns))
u->meta.inactive_enter_timestamp = ts;
if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns))
else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns))
u->meta.active_exit_timestamp = ts;
- if (UNIT_IS_INACTIVE_OR_MAINTENANCE(ns))
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
cgroup_bonding_trim_list(u->meta.cgroup_bondings, true);
timer_unit_notify(u, ns);
job_finish_and_invalidate(u->meta.job, true);
else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_ACTIVATING) {
unexpected = true;
- job_finish_and_invalidate(u->meta.job, false);
+
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
}
break;
job_finish_and_invalidate(u->meta.job, true);
else if (ns != UNIT_ACTIVATING && ns != UNIT_RELOADING) {
unexpected = true;
- job_finish_and_invalidate(u->meta.job, false);
+
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
+ job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
}
}
case JOB_RESTART:
case JOB_TRY_RESTART:
- if (ns == UNIT_INACTIVE || ns == UNIT_MAINTENANCE)
+ if (UNIT_IS_INACTIVE_OR_FAILED(ns))
job_finish_and_invalidate(u->meta.job, true);
else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_DEACTIVATING) {
unexpected = true;
* something is already activated. */
if (unexpected && u->meta.manager->n_deserializing <= 0) {
- if (UNIT_IS_INACTIVE_OR_DEACTIVATING(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns))
+ if (UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns))
retroactively_start_dependencies(u);
else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns))
retroactively_stop_dependencies(u);
}
- if (ns != os && ns == UNIT_MAINTENANCE) {
+ if (ns != os && ns == UNIT_FAILED) {
Iterator i;
Unit *other;
SET_FOREACH(other, u->meta.dependencies[UNIT_ON_FAILURE], i)
manager_add_job(u->meta.manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL);
- log_notice("Unit %s entered maintenance state.", u->meta.id);
+ log_notice("Unit %s entered failed state.", u->meta.id);
}
/* Some names are special */
if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
- if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) {
+ if (unit_has_name(u, SPECIAL_DBUS_SERVICE))
/* The bus just might have become available,
* hence try to connect to it, if we aren't
* yet connected. */
bus_init(u->meta.manager);
- }
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon just might have become
* we aren't yet connected. */
log_open();
- if (u->meta.type == UNIT_MOUNT)
- /* Another directory became available, let's
- * check if that is enough to write our utmp
- * entry. */
- manager_write_utmp_reboot(u->meta.manager);
-
- if (u->meta.type == UNIT_TARGET)
- /* A target got activated, maybe this is a runlevel? */
- manager_write_utmp_runlevel(u->meta.manager, u);
+ if (u->meta.type == UNIT_SERVICE &&
+ !UNIT_IS_ACTIVE_OR_RELOADING(os)) {
+ /* Write audit record if we have just finished starting up */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, 1);
+ u->meta.in_audit = true;
+ }
- } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
+ } else {
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon might just have
/* We don't care about D-Bus here, since we'll get an
* asynchronous notification for it anyway. */
+
+ if (u->meta.type == UNIT_SERVICE &&
+ UNIT_IS_INACTIVE_OR_FAILED(ns) &&
+ !UNIT_IS_INACTIVE_OR_FAILED(os)) {
+
+ /* Hmm, if there was no start record written
+ * write it now, so that we always have a nice
+ * pair */
+ if (!u->meta.in_audit) {
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE);
+
+ if (ns == UNIT_INACTIVE)
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, true);
+ } else
+ /* Write audit record if we have just finished shutting down */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
+
+ u->meta.in_audit = false;
+ }
}
/* Maybe we finished startup and are now ready for being
* stopped because unneeded? */
- unit_check_uneeded(u);
+ unit_check_unneeded(u);
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
assert(d >= 0 && d < _UNIT_DEPENDENCY_MAX);
assert(other);
+ u = unit_follow_merge(u);
+ other = unit_follow_merge(other);
+
/* We won't allow dependencies on ourselves. We will not
* consider them an error however. */
if (u == other)
return -errno;
}
+ char_array_0(line);
l = strstrip(line);
/* End marker */
timespec_load(&st.st_mtim) != u->meta.fragment_mtime;
}
-void unit_reset_maintenance(Unit *u) {
+void unit_reset_failed(Unit *u) {
assert(u);
- if (UNIT_VTABLE(u)->reset_maintenance)
- UNIT_VTABLE(u)->reset_maintenance(u);
+ if (UNIT_VTABLE(u)->reset_failed)
+ UNIT_VTABLE(u)->reset_failed(u);
}
Unit *unit_following(Unit *u) {
return NULL;
}
-static const char* const unit_type_table[_UNIT_TYPE_MAX] = {
- [UNIT_SERVICE] = "service",
- [UNIT_TIMER] = "timer",
- [UNIT_SOCKET] = "socket",
- [UNIT_TARGET] = "target",
- [UNIT_DEVICE] = "device",
- [UNIT_MOUNT] = "mount",
- [UNIT_AUTOMOUNT] = "automount",
- [UNIT_SNAPSHOT] = "snapshot",
- [UNIT_SWAP] = "swap"
-};
+bool unit_pending_inactive(Unit *u) {
+ assert(u);
+
+ /* Returns true if the unit is inactive or going down */
+
+ if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u)))
+ return true;
+
+ if (u->meta.job && u->meta.job->type == JOB_STOP)
+ return true;
+
+ return false;
+}
+
+bool unit_pending_active(Unit *u) {
+ assert(u);
+
+ /* Returns true if the unit is inactive or going down */
+
+ if (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)))
+ return true;
+
+ if (u->meta.job &&
+ (u->meta.job->type == JOB_START ||
+ u->meta.job->type == JOB_RELOAD_OR_START ||
+ u->meta.job->type == JOB_RESTART))
+ return true;
+
+ return false;
+}
+
+UnitType unit_name_to_type(const char *n) {
+ UnitType t;
-DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType);
+ assert(n);
+
+ for (t = 0; t < _UNIT_TYPE_MAX; t++)
+ if (endswith(n, unit_vtable[t]->suffix))
+ return t;
+
+ return _UNIT_TYPE_INVALID;
+}
+
+bool unit_name_is_valid(const char *n) {
+ UnitType t;
+
+ t = unit_name_to_type(n);
+ if (t < 0 || t >= _UNIT_TYPE_MAX)
+ return false;
+
+ return unit_name_is_valid_no_type(n);
+}
static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = {
[UNIT_STUB] = "stub",
[UNIT_LOADED] = "loaded",
- [UNIT_FAILED] = "failed",
+ [UNIT_ERROR] = "error",
[UNIT_MERGED] = "merged"
};
[UNIT_ACTIVE] = "active",
[UNIT_RELOADING] = "reloading",
[UNIT_INACTIVE] = "inactive",
- [UNIT_MAINTENANCE] = "maintenance",
+ [UNIT_FAILED] = "failed",
[UNIT_ACTIVATING] = "activating",
[UNIT_DEACTIVATING] = "deactivating"
};
~ianmdlvl / elogind.git / blobdiff