1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #define INTROSPECTION_BEGIN \
28 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
30 " <interface name=\"org.freedesktop.systemd1\">" \
31 " <method name=\"GetUnit\">" \
32 " <arg name=\"name\" type=\"s\" direction=\"in\"/>" \
33 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>" \
35 " <method name=\"LoadUnit\">" \
36 " <arg name=\"name\" type=\"s\" direction=\"in\"/>" \
37 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>" \
39 " <method name=\"GetJob\">" \
40 " <arg name=\"id\" type=\"u\" direction=\"in\"/>" \
41 " <arg name=\"job\" type=\"o\" direction=\"out\"/>" \
43 " <method name=\"ClearJobs\"/>" \
44 " <method name=\"ListUnits\">" \
45 " <arg name=\"units\" type=\"a(ssssouso)\" direction=\"out\"/>" \
47 " <method name=\"ListJobs\">" \
48 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>" \
50 " <method name=\"Subscribe\"/>" \
51 " <method name=\"Unsubscribe\"/>" \
52 " <method name=\"Dump\"/>" \
53 " <signal name=\"UnitNew\">" \
54 " <arg name=\"id\" type=\"s\"/>" \
55 " <arg name=\"unit\" type=\"o\"/>" \
57 " <signal name=\"UnitRemoved\">" \
58 " <arg name=\"id\" type=\"s\"/>" \
59 " <arg name=\"unit\" type=\"o\"/>" \
61 " <signal name=\"JobNew\">" \
62 " <arg name=\"id\" type=\"u\"/>" \
63 " <arg name=\"job\" type=\"o\"/>" \
65 " <signal name=\"JobRemoved\">" \
66 " <arg name=\"id\" type=\"u\"/>" \
67 " <arg name=\"job\" type=\"o\"/>" \
69 " <property name=\"Version\" type=\"s\" access=\"read\"/>" \
70 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>" \
71 " <property name=\"BootTimestamp\" type=\"t\" access=\"read\"/>" \
72 " <property name=\"LogLevel\" type=\"s\" access=\"readwrite\"/>" \
73 " <property name=\"LogTarget\" type=\"s\" access=\"readwrite\"/>" \
75 BUS_PROPERTIES_INTERFACE \
76 BUS_INTROSPECTABLE_INTERFACE
78 #define INTROSPECTION_END \
81 DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
83 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
90 t = log_target_to_string(log_get_target());
92 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
98 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
105 t = log_level_to_string(log_get_max_level());
107 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
113 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
116 const BusProperty properties[] = {
117 { "org.freedesktop.systemd1", "Version", bus_property_append_string, "s", PACKAGE_VERSION },
118 { "org.freedesktop.systemd1", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
119 { "org.freedesktop.systemd1", "BootTimestamp", bus_property_append_uint64, "t", &m->boot_timestamp },
120 { "org.freedesktop.systemd1", "LogLevel", bus_manager_append_log_level, "s", NULL },
121 { "org.freedesktop.systemd1", "LogTarget", bus_manager_append_log_target, "s", NULL },
122 { NULL, NULL, NULL, NULL, NULL }
127 DBusMessage *reply = NULL;
134 dbus_error_init(&error);
136 log_debug("Got D-Bus request: %s.%s() on %s",
137 dbus_message_get_interface(message),
138 dbus_message_get_member(message),
139 dbus_message_get_path(message));
141 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "GetUnit")) {
145 if (!dbus_message_get_args(
148 DBUS_TYPE_STRING, &name,
150 return bus_send_error_reply(m, message, &error, -EINVAL);
152 if (!(u = manager_get_unit(m, name)))
153 return bus_send_error_reply(m, message, NULL, -ENOENT);
155 if (!(reply = dbus_message_new_method_return(message)))
158 if (!(path = unit_dbus_path(u)))
161 if (!dbus_message_append_args(
163 DBUS_TYPE_OBJECT_PATH, &path,
167 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "LoadUnit")) {
171 if (!dbus_message_get_args(
174 DBUS_TYPE_STRING, &name,
176 return bus_send_error_reply(m, message, &error, -EINVAL);
178 if ((r = manager_load_unit(m, name, &u)) < 0)
179 return bus_send_error_reply(m, message, NULL, r);
181 if (!(reply = dbus_message_new_method_return(message)))
184 if (!(path = unit_dbus_path(u)))
187 if (!dbus_message_append_args(
189 DBUS_TYPE_OBJECT_PATH, &path,
193 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "GetJob")) {
197 if (!dbus_message_get_args(
200 DBUS_TYPE_UINT32, &id,
202 return bus_send_error_reply(m, message, &error, -EINVAL);
204 if (!(j = manager_get_job(m, id)))
205 return bus_send_error_reply(m, message, NULL, -ENOENT);
207 if (!(reply = dbus_message_new_method_return(message)))
210 if (!(path = job_dbus_path(j)))
213 if (!dbus_message_append_args(
215 DBUS_TYPE_OBJECT_PATH, &path,
219 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "ClearJobs")) {
221 manager_clear_jobs(m);
223 if (!(reply = dbus_message_new_method_return(message)))
226 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "ListUnits")) {
227 DBusMessageIter iter, sub;
232 if (!(reply = dbus_message_new_method_return(message)))
235 dbus_message_iter_init_append(reply, &iter);
237 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssouso)", &sub))
240 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
241 char *u_path, *j_path;
242 const char *id, *description, *load_state, *active_state, *job_type;
243 DBusMessageIter sub2;
250 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
253 description = unit_description(u);
254 load_state = unit_load_state_to_string(u->meta.load_state);
255 active_state = unit_active_state_to_string(unit_active_state(u));
257 if (!(u_path = unit_dbus_path(u)))
261 job_id = (uint32_t) u->meta.job->id;
263 if (!(j_path = job_dbus_path(u->meta.job))) {
268 job_type = job_type_to_string(u->meta.job->type);
275 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &id) ||
276 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
277 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
278 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
279 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
280 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
281 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &job_type) ||
282 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
293 if (!dbus_message_iter_close_container(&sub, &sub2))
297 if (!dbus_message_iter_close_container(&iter, &sub))
300 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "ListJobs")) {
301 DBusMessageIter iter, sub;
305 if (!(reply = dbus_message_new_method_return(message)))
308 dbus_message_iter_init_append(reply, &iter);
310 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
313 HASHMAP_FOREACH(j, m->jobs, i) {
314 char *u_path, *j_path;
315 const char *unit, *state, *type;
317 DBusMessageIter sub2;
319 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
322 id = (uint32_t) j->id;
323 unit = unit_id(j->unit);
324 state = job_state_to_string(j->state);
325 type = job_type_to_string(j->type);
327 if (!(j_path = job_dbus_path(j)))
330 if (!(u_path = unit_dbus_path(j->unit))) {
335 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
336 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &unit) ||
337 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
338 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
339 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
340 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
349 if (!dbus_message_iter_close_container(&sub, &sub2))
353 if (!dbus_message_iter_close_container(&iter, &sub))
356 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "Subscribe")) {
359 if (!(client = strdup(dbus_message_get_sender(message))))
362 r = set_put(m->subscribed, client);
365 return bus_send_error_reply(m, message, NULL, r);
367 if (!(reply = dbus_message_new_method_return(message)))
370 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "Unsubscribe")) {
373 if (!(client = set_remove(m->subscribed, (char*) dbus_message_get_sender(message))))
374 return bus_send_error_reply(m, message, NULL, -ENOENT);
378 if (!(reply = dbus_message_new_method_return(message)))
381 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1", "Dump")) {
386 if (!(reply = dbus_message_new_method_return(message)))
389 if (!(f = open_memstream(&dump, &size)))
392 manager_dump_units(m, f, NULL);
393 manager_dump_jobs(m, f, NULL);
403 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
410 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
411 char *introspection = NULL;
419 if (!(reply = dbus_message_new_method_return(message)))
422 /* We roll our own introspection code here, instead of
423 * relying on bus_default_message_handler() because we
424 * need to generate our introspection string
427 if (!(f = open_memstream(&introspection, &size)))
430 fputs(INTROSPECTION_BEGIN, f);
432 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
438 if (!(p = bus_path_escape(k))) {
444 fprintf(f, "<node name=\"unit/%s\"/>", p);
448 HASHMAP_FOREACH(j, m->jobs, i)
449 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
451 fputs(INTROSPECTION_END, f);
464 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
472 return bus_default_message_handler(m, message, NULL, properties);
477 if (!dbus_connection_send(connection, reply, NULL))
480 dbus_message_unref(reply);
483 return DBUS_HANDLER_RESULT_HANDLED;
489 dbus_message_unref(reply);
491 dbus_error_free(&error);
493 return DBUS_HANDLER_RESULT_NEED_MEMORY;
496 const DBusObjectPathVTable bus_manager_vtable = {
497 .message_function = bus_manager_message_handler