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systemd/src/core/dbus-unit.c

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/*-*- 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 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 "dbus.h"
#include "log.h"
#include "dbus-unit.h"
#include "bus-errors.h"
#include "dbus-common.h"
#include "selinux-access.h"
const char bus_unit_interface[] _introspect_("Unit") = BUS_UNIT_INTERFACE;
#define INVALIDATING_PROPERTIES \
"LoadState\0" \
"ActiveState\0" \
"SubState\0" \
"InactiveExitTimestamp\0" \
"ActiveEnterTimestamp\0" \
"ActiveExitTimestamp\0" \
"InactiveEnterTimestamp\0" \
"Job\0" \
"NeedDaemonReload\0"
static int bus_unit_append_names(DBusMessageIter *i, const char *property, void *data) {
char *t;
Iterator j;
DBusMessageIter sub;
Unit *u = data;
if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "s", &sub))
return -ENOMEM;
SET_FOREACH(t, u->names, j)
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t))
return -ENOMEM;
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static int bus_unit_append_following(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data, *f;
const char *d;
assert(i);
assert(property);
assert(u);
f = unit_following(u);
d = f ? f->id : "";
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
return -ENOMEM;
return 0;
}
static int bus_unit_append_dependencies(DBusMessageIter *i, const char *property, void *data) {
Unit *u;
Iterator j;
DBusMessageIter sub;
Set *s = data;
if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "s", &sub))
return -ENOMEM;
SET_FOREACH(u, s, j)
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &u->id))
return -ENOMEM;
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static int bus_unit_append_description(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *d;
assert(i);
assert(property);
assert(u);
d = unit_description(u);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
return -ENOMEM;
return 0;
}
static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_unit_append_load_state, unit_load_state, UnitLoadState);
static int bus_unit_append_active_state(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *state;
assert(i);
assert(property);
assert(u);
state = unit_active_state_to_string(unit_active_state(u));
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
return -ENOMEM;
return 0;
}
static int bus_unit_append_sub_state(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *state;
assert(i);
assert(property);
assert(u);
state = unit_sub_state_to_string(u);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
return -ENOMEM;
return 0;
}
static int bus_unit_append_file_state(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *state;
assert(i);
assert(property);
assert(u);
state = strempty(unit_file_state_to_string(unit_get_unit_file_state(u)));
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
return -ENOMEM;
return 0;
}
static int bus_unit_append_can_start(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(i);
assert(property);
assert(u);
b = unit_can_start(u) &&
!u->refuse_manual_start;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
static int bus_unit_append_can_stop(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(i);
assert(property);
assert(u);
/* On the lower levels we assume that every unit we can start
* we can also stop */
b = unit_can_start(u) &&
!u->refuse_manual_stop;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
static int bus_unit_append_can_reload(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(i);
assert(property);
assert(u);
b = unit_can_reload(u);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
static int bus_unit_append_can_isolate(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(i);
assert(property);
assert(u);
b = unit_can_isolate(u) &&
!u->refuse_manual_start;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
DBusMessageIter sub;
char *p;
assert(i);
assert(property);
assert(u);
if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
return -ENOMEM;
if (u->job) {
if (!(p = job_dbus_path(u->job)))
return -ENOMEM;
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->job->id) ||
!dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
free(p);
return -ENOMEM;
}
} else {
uint32_t id = 0;
/* No job, so let's fill in some placeholder
* data. Since we need to fill in a valid path we
* simple point to ourselves. */
if (!(p = unit_dbus_path(u)))
return -ENOMEM;
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &id) ||
!dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
free(p);
return -ENOMEM;
}
}
free(p);
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static int bus_unit_append_default_cgroup(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
char *t;
CGroupBonding *cgb;
bool success;
assert(i);
assert(property);
assert(u);
if ((cgb = unit_get_default_cgroup(u))) {
if (!(t = cgroup_bonding_to_string(cgb)))
return -ENOMEM;
} else
t = (char*) "";
success = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t);
if (cgb)
free(t);
return success ? 0 : -ENOMEM;
}
static int bus_unit_append_cgroups(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
CGroupBonding *cgb;
DBusMessageIter sub;
if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "s", &sub))
return -ENOMEM;
LIST_FOREACH(by_unit, cgb, u->cgroup_bondings) {
char *t;
bool success;
if (!(t = cgroup_bonding_to_string(cgb)))
return -ENOMEM;
success = dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t);
free(t);
if (!success)
return -ENOMEM;
}
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static int bus_unit_append_cgroup_attrs(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
CGroupAttribute *a;
DBusMessageIter sub, sub2;
if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(sss)", &sub))
return -ENOMEM;
LIST_FOREACH(by_unit, a, u->cgroup_attributes) {
char *v = NULL;
bool success;
if (a->map_callback)
a->map_callback(a->controller, a->name, a->value, &v);
success =
dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) &&
dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &a->controller) &&
dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &a->name) &&
dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, v ? &v : &a->value) &&
dbus_message_iter_close_container(&sub, &sub2);
free(v);
if (!success)
return -ENOMEM;
}
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static int bus_unit_append_need_daemon_reload(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
dbus_bool_t b;
assert(i);
assert(property);
assert(u);
b = unit_need_daemon_reload(u);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
return 0;
}
static int bus_unit_append_load_error(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
const char *name, *message;
DBusMessageIter sub;
assert(i);
assert(property);
assert(u);
if (u->load_error != 0) {
name = bus_errno_to_dbus(u->load_error);
message = strempty(strerror(-u->load_error));
} else
name = message = "";
if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub) ||
!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &name) ||
!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &message) ||
!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *connection, DBusMessage *message) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusError error;
JobType job_type = _JOB_TYPE_INVALID;
bool reload_if_possible = false;
int r;
dbus_error_init(&error);
if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Start"))
job_type = JOB_START;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Stop"))
job_type = JOB_STOP;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Reload"))
job_type = JOB_RELOAD;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Restart"))
job_type = JOB_RESTART;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "TryRestart"))
job_type = JOB_TRY_RESTART;
else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "ReloadOrRestart")) {
reload_if_possible = true;
job_type = JOB_RESTART;
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "ReloadOrTryRestart")) {
reload_if_possible = true;
job_type = JOB_TRY_RESTART;
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "Kill")) {
const char *swho;
int32_t signo;
KillWho who;
if (!dbus_message_get_args(
message,
&error,
DBUS_TYPE_STRING, &swho,
DBUS_TYPE_INT32, &signo,
DBUS_TYPE_INVALID))
return bus_send_error_reply(connection, message, &error, -EINVAL);
if (isempty(swho))
who = KILL_ALL;
else {
who = kill_who_from_string(swho);
if (who < 0)
return bus_send_error_reply(connection, message, &error, -EINVAL);
}
if (signo <= 0 || signo >= _NSIG)
return bus_send_error_reply(connection, message, &error, -EINVAL);
SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "stop");
r = unit_kill(u, who, signo, &error);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
reply = dbus_message_new_method_return(message);
if (!reply)
goto oom;
} else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "ResetFailed")) {
SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "reload");
unit_reset_failed(u);
reply = dbus_message_new_method_return(message);
if (!reply)
goto oom;
} else if (UNIT_VTABLE(u)->bus_message_handler)
return UNIT_VTABLE(u)->bus_message_handler(u, connection, message);
else
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
if (job_type != _JOB_TYPE_INVALID) {
const char *smode;
JobMode mode;
if (!dbus_message_get_args(
message,
&error,
DBUS_TYPE_STRING, &smode,
DBUS_TYPE_INVALID))
return bus_send_error_reply(connection, message, &error, -EINVAL);
mode = job_mode_from_string(smode);
if (mode < 0) {
dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
return bus_send_error_reply(connection, message, &error, -EINVAL);
}
return bus_unit_queue_job(connection, message, u, job_type, mode, reload_if_possible);
}
if (reply)
if (!dbus_connection_send(connection, reply, NULL))
goto oom;
return DBUS_HANDLER_RESULT_HANDLED;
oom:
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
static DBusHandlerResult bus_unit_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
Manager *m = data;
Unit *u;
int r;
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
DBusError error;
assert(connection);
assert(message);
assert(m);
dbus_error_init(&error);
if (streq(dbus_message_get_path(message), "/org/freedesktop/systemd1/unit")) {
/* Be nice to gdbus and return introspection data for our mid-level paths */
SELINUX_ACCESS_CHECK(connection, message, "status");
if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
char *introspection = NULL;
FILE *f;
Iterator i;
const char *k;
size_t size;
reply = dbus_message_new_method_return(message);
if (!reply)
goto oom;
/* We roll our own introspection code here, instead of
* relying on bus_default_message_handler() because we
* need to generate our introspection string
* dynamically. */
f = open_memstream(&introspection, &size);
if (!f)
goto oom;
fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
"<node>\n", f);
fputs(BUS_INTROSPECTABLE_INTERFACE, f);
fputs(BUS_PEER_INTERFACE, f);
HASHMAP_FOREACH_KEY(u, k, m->units, i) {
char *p;
if (k != u->id)
continue;
p = bus_path_escape(k);
if (!p) {
fclose(f);
free(introspection);
goto oom;
}
fprintf(f, "<node name=\"%s\"/>", p);
free(p);
}
fputs("</node>\n", f);
if (ferror(f)) {
fclose(f);
free(introspection);
goto oom;
}
fclose(f);
if (!introspection)
goto oom;
if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
free(introspection);
goto oom;
}
free(introspection);
if (!dbus_connection_send(connection, reply, NULL))
goto oom;
return DBUS_HANDLER_RESULT_HANDLED;
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
r = manager_load_unit_from_dbus_path(m, dbus_message_get_path(message), &error, &u);
if (r == -ENOMEM)
goto oom;
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
return bus_unit_message_dispatch(u, connection, message);
oom:
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
const DBusObjectPathVTable bus_unit_vtable = {
.message_function = bus_unit_message_handler
};
void bus_unit_send_change_signal(Unit *u) {
char *p = NULL;
DBusMessage *m = NULL;
assert(u);
if (u->in_dbus_queue) {
LIST_REMOVE(Unit, dbus_queue, u->manager->dbus_unit_queue, u);
u->in_dbus_queue = false;
}
if (!u->id)
return;
if (!bus_has_subscriber(u->manager)) {
u->sent_dbus_new_signal = true;
return;
}
if (!(p = unit_dbus_path(u)))
goto oom;
if (u->sent_dbus_new_signal) {
/* Send a properties changed signal. First for the
* specific type, then for the generic unit. The
* clients may rely on this order to get atomic
* behavior if needed. */
if (UNIT_VTABLE(u)->bus_invalidating_properties) {
if (!(m = bus_properties_changed_new(p,
UNIT_VTABLE(u)->bus_interface,
UNIT_VTABLE(u)->bus_invalidating_properties)))
goto oom;
if (bus_broadcast(u->manager, m) < 0)
goto oom;
dbus_message_unref(m);
}
if (!(m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit", INVALIDATING_PROPERTIES)))
goto oom;
} else {
/* Send a new signal */
if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitNew")))
goto oom;
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &u->id,
DBUS_TYPE_OBJECT_PATH, &p,
DBUS_TYPE_INVALID))
goto oom;
}
if (bus_broadcast(u->manager, m) < 0)
goto oom;
free(p);
dbus_message_unref(m);
u->sent_dbus_new_signal = true;
return;
oom:
free(p);
if (m)
dbus_message_unref(m);
log_error("Failed to allocate unit change/new signal.");
}
void bus_unit_send_removed_signal(Unit *u) {
char *p = NULL;
DBusMessage *m = NULL;
assert(u);
if (!bus_has_subscriber(u->manager))
return;
if (!u->sent_dbus_new_signal)
bus_unit_send_change_signal(u);
if (!u->id)
return;
if (!(p = unit_dbus_path(u)))
goto oom;
if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitRemoved")))
goto oom;
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &u->id,
DBUS_TYPE_OBJECT_PATH, &p,
DBUS_TYPE_INVALID))
goto oom;
if (bus_broadcast(u->manager, m) < 0)
goto oom;
free(p);
dbus_message_unref(m);
return;
oom:
free(p);
if (m)
dbus_message_unref(m);
log_error("Failed to allocate unit remove signal.");
}
DBusHandlerResult bus_unit_queue_job(
DBusConnection *connection,
DBusMessage *message,
Unit *u,
JobType type,
JobMode mode,
bool reload_if_possible) {
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
_cleanup_free_ char *path = NULL;
Job *j;
JobBusClient *cl;
DBusError error;
int r;
assert(connection);
assert(message);
assert(u);
assert(type >= 0 && type < _JOB_TYPE_MAX);
assert(mode >= 0 && mode < _JOB_MODE_MAX);
dbus_error_init(&error);
if (reload_if_possible && unit_can_reload(u)) {
if (type == JOB_RESTART)
type = JOB_RELOAD_OR_START;
else if (type == JOB_TRY_RESTART)
type = JOB_RELOAD;
}
SELINUX_UNIT_ACCESS_CHECK(u, connection, message,
(type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" :
type == JOB_STOP ? "stop" : "reload");
if (type == JOB_STOP && u->load_state == UNIT_ERROR && unit_active_state(u) == UNIT_INACTIVE) {
dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
return bus_send_error_reply(connection, message, &error, -EPERM);
}
if ((type == JOB_START && u->refuse_manual_start) ||
(type == JOB_STOP && u->refuse_manual_stop) ||
((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop))) {
dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id);
return bus_send_error_reply(connection, message, &error, -EPERM);
}
r = manager_add_job(u->manager, type, u, mode, true, &error, &j);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
cl = job_bus_client_new(connection, bus_message_get_sender_with_fallback(message));
if (!cl)
goto oom;
LIST_PREPEND(JobBusClient, client, j->bus_client_list, cl);
reply = dbus_message_new_method_return(message);
if (!reply)
goto oom;
path = job_dbus_path(j);
if (!path)
goto oom;
if (!dbus_message_append_args(
reply,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID))
goto oom;
if (!dbus_connection_send(connection, reply, NULL))
goto oom;
return DBUS_HANDLER_RESULT_HANDLED;
oom:
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
const BusProperty bus_unit_properties[] = {
{ "Id", bus_property_append_string, "s", offsetof(Unit, id), true },
{ "Names", bus_unit_append_names, "as", 0 },
{ "Following", bus_unit_append_following, "s", 0 },
{ "Requires", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRES]), true },
{ "RequiresOverridable", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]), true },
{ "Requisite", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUISITE]), true },
{ "RequisiteOverridable", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUISITE_OVERRIDABLE]), true },
{ "Wants", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_WANTS]), true },
{ "BindsTo", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_BINDS_TO]), true },
{ "PartOf", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_PART_OF]), true },
{ "RequiredBy", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), true },
{ "RequiredByOverridable",bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRED_BY_OVERRIDABLE]), true },
{ "WantedBy", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_WANTED_BY]), true },
{ "BoundBy", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_BOUND_BY]), true },
{ "ConsistsOf", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), true },
{ "Conflicts", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_CONFLICTS]), true },
{ "ConflictedBy", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), true },
{ "Before", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_BEFORE]), true },
{ "After", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_AFTER]), true },
{ "OnFailure", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_ON_FAILURE]), true },
{ "Triggers", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_TRIGGERS]), true },
{ "TriggeredBy", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), true },
{ "PropagatesReloadTo", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), true },
{ "ReloadPropagatedFrom", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), true },
{ "RequiresMountsFor", bus_property_append_strv, "as", offsetof(Unit, requires_mounts_for), true },
{ "Documentation", bus_property_append_strv, "as", offsetof(Unit, documentation), true },
{ "Description", bus_unit_append_description, "s", 0 },
{ "LoadState", bus_unit_append_load_state, "s", offsetof(Unit, load_state) },
{ "ActiveState", bus_unit_append_active_state, "s", 0 },
{ "SubState", bus_unit_append_sub_state, "s", 0 },
{ "FragmentPath", bus_property_append_string, "s", offsetof(Unit, fragment_path), true },
{ "SourcePath", bus_property_append_string, "s", offsetof(Unit, source_path), true },
{ "UnitFileState", bus_unit_append_file_state, "s", 0 },
{ "InactiveExitTimestamp",bus_property_append_usec, "t", offsetof(Unit, inactive_exit_timestamp.realtime) },
{ "InactiveExitTimestampMonotonic", bus_property_append_usec, "t", offsetof(Unit, inactive_exit_timestamp.monotonic) },
{ "ActiveEnterTimestamp", bus_property_append_usec, "t", offsetof(Unit, active_enter_timestamp.realtime) },
{ "ActiveEnterTimestampMonotonic", bus_property_append_usec, "t", offsetof(Unit, active_enter_timestamp.monotonic) },
{ "ActiveExitTimestamp", bus_property_append_usec, "t", offsetof(Unit, active_exit_timestamp.realtime) },
{ "ActiveExitTimestampMonotonic", bus_property_append_usec, "t", offsetof(Unit, active_exit_timestamp.monotonic) },
{ "InactiveEnterTimestamp", bus_property_append_usec, "t", offsetof(Unit, inactive_enter_timestamp.realtime) },
{ "InactiveEnterTimestampMonotonic",bus_property_append_usec, "t", offsetof(Unit, inactive_enter_timestamp.monotonic) },
{ "CanStart", bus_unit_append_can_start, "b", 0 },
{ "CanStop", bus_unit_append_can_stop, "b", 0 },
{ "CanReload", bus_unit_append_can_reload, "b", 0 },
{ "CanIsolate", bus_unit_append_can_isolate, "b", 0 },
{ "Job", bus_unit_append_job, "(uo)", 0 },
{ "StopWhenUnneeded", bus_property_append_bool, "b", offsetof(Unit, stop_when_unneeded) },
{ "RefuseManualStart", bus_property_append_bool, "b", offsetof(Unit, refuse_manual_start) },
{ "RefuseManualStop", bus_property_append_bool, "b", offsetof(Unit, refuse_manual_stop) },
{ "AllowIsolate", bus_property_append_bool, "b", offsetof(Unit, allow_isolate) },
{ "DefaultDependencies", bus_property_append_bool, "b", offsetof(Unit, default_dependencies) },
{ "OnFailureIsolate", bus_property_append_bool, "b", offsetof(Unit, on_failure_isolate) },
{ "IgnoreOnIsolate", bus_property_append_bool, "b", offsetof(Unit, ignore_on_isolate) },
{ "IgnoreOnSnapshot", bus_property_append_bool, "b", offsetof(Unit, ignore_on_snapshot) },
{ "DefaultControlGroup", bus_unit_append_default_cgroup, "s", 0 },
{ "ControlGroup", bus_unit_append_cgroups, "as", 0 },
{ "ControlGroupAttributes", bus_unit_append_cgroup_attrs,"a(sss)", 0 },
{ "NeedDaemonReload", bus_unit_append_need_daemon_reload, "b", 0 },
{ "JobTimeoutUSec", bus_property_append_usec, "t", offsetof(Unit, job_timeout) },
{ "ConditionTimestamp", bus_property_append_usec, "t", offsetof(Unit, condition_timestamp.realtime) },
{ "ConditionTimestampMonotonic", bus_property_append_usec, "t", offsetof(Unit, condition_timestamp.monotonic) },
{ "ConditionResult", bus_property_append_bool, "b", offsetof(Unit, condition_result) },
{ "LoadError", bus_unit_append_load_error, "(ss)", 0 },
{ NULL, }
};
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