1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include "path-util.h"
26 #include "dbus-unit.h"
27 #include "dbus-execute.h"
28 #include "dbus-kill.h"
29 #include "dbus-cgroup.h"
30 #include "dbus-common.h"
31 #include "selinux-access.h"
32 #include "dbus-service.h"
34 #define BUS_SERVICE_INTERFACE \
35 " <interface name=\"org.freedesktop.systemd1.Service\">\n" \
36 " <property name=\"Type\" type=\"s\" access=\"read\"/>\n" \
37 " <property name=\"Restart\" type=\"s\" access=\"read\"/>\n" \
38 " <property name=\"PIDFile\" type=\"s\" access=\"read\"/>\n" \
39 " <property name=\"NotifyAccess\" type=\"s\" access=\"read\"/>\n" \
40 " <property name=\"RestartUSec\" type=\"t\" access=\"read\"/>\n" \
41 " <property name=\"TimeoutStartUSec\" type=\"t\" access=\"read\"/>\n" \
42 " <property name=\"TimeoutStopUSec\" type=\"t\" access=\"read\"/>\n" \
43 " <property name=\"WatchdogUSec\" type=\"t\" access=\"read\"/>\n" \
44 " <property name=\"WatchdogTimestamp\" type=\"t\" access=\"read\"/>\n" \
45 " <property name=\"WatchdogTimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
46 " <property name=\"StartLimitInterval\" type=\"t\" access=\"read\"/>\n" \
47 " <property name=\"StartLimitBurst\" type=\"u\" access=\"read\"/>\n" \
48 " <property name=\"StartLimitAction\" type=\"s\" access=\"readwrite\"/>\n" \
49 BUS_EXEC_COMMAND_INTERFACE("ExecStartPre") \
50 BUS_EXEC_COMMAND_INTERFACE("ExecStart") \
51 BUS_EXEC_COMMAND_INTERFACE("ExecStartPost") \
52 BUS_EXEC_COMMAND_INTERFACE("ExecReload") \
53 BUS_EXEC_COMMAND_INTERFACE("ExecStop") \
54 BUS_EXEC_COMMAND_INTERFACE("ExecStopPost") \
55 BUS_EXEC_CONTEXT_INTERFACE \
56 BUS_KILL_CONTEXT_INTERFACE \
57 " <property name=\"PermissionsStartOnly\" type=\"b\" access=\"read\"/>\n" \
58 " <property name=\"RootDirectoryStartOnly\" type=\"b\" access=\"read\"/>\n" \
59 " <property name=\"RemainAfterExit\" type=\"b\" access=\"read\"/>\n" \
60 BUS_EXEC_STATUS_INTERFACE("ExecMain") \
61 " <property name=\"MainPID\" type=\"u\" access=\"read\"/>\n" \
62 " <property name=\"ControlPID\" type=\"u\" access=\"read\"/>\n" \
63 " <property name=\"BusName\" type=\"s\" access=\"read\"/>\n" \
64 " <property name=\"StatusText\" type=\"s\" access=\"read\"/>\n" \
65 " <property name=\"Result\" type=\"s\" access=\"read\"/>\n" \
68 #define INTROSPECTION \
69 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
72 BUS_SERVICE_INTERFACE \
73 BUS_PROPERTIES_INTERFACE \
75 BUS_INTROSPECTABLE_INTERFACE \
78 #define INTERFACES_LIST \
79 BUS_UNIT_INTERFACES_LIST \
80 "org.freedesktop.systemd1.Service\0"
82 const char bus_service_interface[] _introspect_("Service") = BUS_SERVICE_INTERFACE;
84 const char bus_service_invalidating_properties[] =
93 "WatchdogTimestampMonotonic\0"
99 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_type, service_type, ServiceType);
100 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_restart, service_restart, ServiceRestart);
101 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_notify_access, notify_access, NotifyAccess);
102 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_service_result, service_result, ServiceResult);
103 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_start_limit_action, start_limit_action, StartLimitAction);
104 static DEFINE_BUS_PROPERTY_SET_ENUM(bus_service_set_start_limit_action, start_limit_action, StartLimitAction);
106 static const BusProperty bus_exec_main_status_properties[] = {
107 { "ExecMainStartTimestamp", bus_property_append_usec, "t", offsetof(ExecStatus, start_timestamp.realtime) },
108 { "ExecMainStartTimestampMonotonic",bus_property_append_usec, "t", offsetof(ExecStatus, start_timestamp.monotonic) },
109 { "ExecMainExitTimestamp", bus_property_append_usec, "t", offsetof(ExecStatus, exit_timestamp.realtime) },
110 { "ExecMainExitTimestampMonotonic", bus_property_append_usec, "t", offsetof(ExecStatus, exit_timestamp.monotonic) },
111 { "ExecMainPID", bus_property_append_pid, "u", offsetof(ExecStatus, pid) },
112 { "ExecMainCode", bus_property_append_int, "i", offsetof(ExecStatus, code) },
113 { "ExecMainStatus", bus_property_append_int, "i", offsetof(ExecStatus, status) },
117 static const BusProperty bus_service_properties[] = {
118 { "Type", bus_service_append_type, "s", offsetof(Service, type) },
119 { "Restart", bus_service_append_restart, "s", offsetof(Service, restart) },
120 { "PIDFile", bus_property_append_string, "s", offsetof(Service, pid_file), true },
121 { "NotifyAccess", bus_service_append_notify_access, "s", offsetof(Service, notify_access) },
122 { "RestartUSec", bus_property_append_usec, "t", offsetof(Service, restart_usec) },
123 { "TimeoutStartUSec", bus_property_append_usec, "t", offsetof(Service, timeout_start_usec) },
124 { "TimeoutStopUSec", bus_property_append_usec, "t", offsetof(Service, timeout_stop_usec) },
125 { "WatchdogUSec", bus_property_append_usec, "t", offsetof(Service, watchdog_usec) },
126 { "WatchdogTimestamp", bus_property_append_usec, "t", offsetof(Service, watchdog_timestamp.realtime) },
127 { "WatchdogTimestampMonotonic",bus_property_append_usec, "t", offsetof(Service, watchdog_timestamp.monotonic) },
128 { "StartLimitInterval", bus_property_append_usec, "t", offsetof(Service, start_limit.interval) },
129 { "StartLimitBurst", bus_property_append_uint32, "u", offsetof(Service, start_limit.burst) },
130 { "StartLimitAction", bus_service_append_start_limit_action,"s", offsetof(Service, start_limit_action), false, bus_service_set_start_limit_action},
131 BUS_EXEC_COMMAND_PROPERTY("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), true ),
132 BUS_EXEC_COMMAND_PROPERTY("ExecStart", offsetof(Service, exec_command[SERVICE_EXEC_START]), true ),
133 BUS_EXEC_COMMAND_PROPERTY("ExecStartPost", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), true ),
134 BUS_EXEC_COMMAND_PROPERTY("ExecReload", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), true ),
135 BUS_EXEC_COMMAND_PROPERTY("ExecStop", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), true ),
136 BUS_EXEC_COMMAND_PROPERTY("ExecStopPost", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), true ),
137 { "PermissionsStartOnly", bus_property_append_bool, "b", offsetof(Service, permissions_start_only) },
138 { "RootDirectoryStartOnly", bus_property_append_bool, "b", offsetof(Service, root_directory_start_only) },
139 { "RemainAfterExit", bus_property_append_bool, "b", offsetof(Service, remain_after_exit) },
140 { "GuessMainPID", bus_property_append_bool, "b", offsetof(Service, guess_main_pid) },
141 { "MainPID", bus_property_append_pid, "u", offsetof(Service, main_pid) },
142 { "ControlPID", bus_property_append_pid, "u", offsetof(Service, control_pid) },
143 { "BusName", bus_property_append_string, "s", offsetof(Service, bus_name), true },
144 { "StatusText", bus_property_append_string, "s", offsetof(Service, status_text), true },
145 { "Result", bus_service_append_service_result,"s", offsetof(Service, result) },
149 DBusHandlerResult bus_service_message_handler(Unit *u, DBusConnection *connection, DBusMessage *message) {
150 Service *s = SERVICE(u);
152 const BusBoundProperties bps[] = {
153 { "org.freedesktop.systemd1.Unit", bus_unit_properties, u },
154 { "org.freedesktop.systemd1.Service", bus_service_properties, s },
155 { "org.freedesktop.systemd1.Service", bus_exec_context_properties, &s->exec_context },
156 { "org.freedesktop.systemd1.Service", bus_kill_context_properties, &s->kill_context },
157 { "org.freedesktop.systemd1.Service", bus_cgroup_context_properties, &s->cgroup_context },
158 { "org.freedesktop.systemd1.Service", bus_exec_main_status_properties, &s->main_exec_status },
162 SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "status");
164 return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
167 static int bus_service_set_transient_properties(
171 UnitSetPropertiesMode mode,
180 if (streq(name, "ExecStart")) {
184 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
185 dbus_message_iter_get_element_type(i) != DBUS_TYPE_STRUCT)
188 dbus_message_iter_recurse(i, &sub);
189 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
190 _cleanup_strv_free_ char **argv = NULL;
191 DBusMessageIter sub2;
195 dbus_message_iter_recurse(&sub, &sub2);
197 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
200 if (!path_is_absolute(path)) {
201 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
205 r = bus_parse_strv_iter(&sub2, &argv);
209 dbus_message_iter_next(&sub2);
211 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) < 0)
214 if (mode != UNIT_CHECK) {
217 c = new0(ExecCommand, 1);
221 c->path = strdup(path);
232 path_kill_slashes(c->path);
233 exec_command_append_list(&s->exec_command[SERVICE_EXEC_START], c);
237 dbus_message_iter_next(&sub);
240 if (mode != UNIT_CHECK) {
241 _cleanup_free_ char *buf = NULL;
242 _cleanup_fclose_ FILE *f = NULL;
247 exec_command_free_list(s->exec_command[SERVICE_EXEC_START]);
248 s->exec_command[SERVICE_EXEC_START] = NULL;
251 f = open_memstream(&buf, &size);
255 fputs("ExecStart=\n", f);
257 LIST_FOREACH(command, c, s->exec_command[SERVICE_EXEC_START]) {
259 fputs("ExecStart=", f);
267 STRV_FOREACH(a, c->argv) {
276 unit_write_drop_in_private_section(UNIT(s), mode, "exec-start", buf);
285 int bus_service_set_property(
289 UnitSetPropertiesMode mode,
292 Service *s = SERVICE(u);
299 r = bus_cgroup_set_property(u, &s->cgroup_context, name, i, mode, error);
303 if (u->transient && u->load_state == UNIT_STUB) {
304 /* This is a transient unit, let's load a little more */
306 r = bus_service_set_transient_properties(s, name, i, mode, error);
314 int bus_service_commit_properties(Unit *u) {
317 unit_realize_cgroup(u);