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=\"unit\" 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\"/>" \
51 BUS_PROPERTIES_INTERFACE \
52 BUS_INTROSPECTABLE_INTERFACE
54 #define INTROSPECTION_END \
57 DBusHandlerResult
bus_manager_message_handler(DBusConnection
*connection
, DBusMessage
*message
, void *data
) {
61 DBusMessage
*reply
= NULL
;
68 dbus_error_init(&error
);
70 log_debug("Got D-Bus request: %s.%s() on %s",
71 dbus_message_get_interface(message
),
72 dbus_message_get_member(message
),
73 dbus_message_get_path(message
));
75 if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "GetUnit")) {
79 if (!dbus_message_get_args(
82 DBUS_TYPE_STRING
, &name
,
84 return bus_send_error_reply(m
, message
, &error
, -EINVAL
);
86 if (!(u
= manager_get_unit(m
, name
)))
87 return bus_send_error_reply(m
, message
, NULL
, -ENOENT
);
89 if (!(reply
= dbus_message_new_method_return(message
)))
92 if (!(path
= unit_dbus_path(u
)))
95 if (!dbus_message_append_args(
97 DBUS_TYPE_OBJECT_PATH
, &path
,
101 } else if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "LoadUnit")) {
105 if (!dbus_message_get_args(
108 DBUS_TYPE_STRING
, &name
,
110 return bus_send_error_reply(m
, message
, &error
, -EINVAL
);
112 if ((r
= manager_load_unit(m
, name
, &u
)) < 0)
113 return bus_send_error_reply(m
, message
, NULL
, r
);
115 if (!(reply
= dbus_message_new_method_return(message
)))
118 if (!(path
= unit_dbus_path(u
)))
121 if (!dbus_message_append_args(
123 DBUS_TYPE_OBJECT_PATH
, &path
,
127 } else if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "GetJob")) {
131 if (!dbus_message_get_args(
134 DBUS_TYPE_UINT32
, &id
,
136 return bus_send_error_reply(m
, message
, &error
, -EINVAL
);
138 if (!(j
= manager_get_job(m
, id
)))
139 return bus_send_error_reply(m
, message
, NULL
, -ENOENT
);
141 if (!(reply
= dbus_message_new_method_return(message
)))
144 if (!(path
= job_dbus_path(j
)))
147 if (!dbus_message_append_args(
149 DBUS_TYPE_OBJECT_PATH
, &path
,
153 } else if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "ClearJobs")) {
155 manager_clear_jobs(m
);
157 if (!(reply
= dbus_message_new_method_return(message
)))
160 } else if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "ListUnits")) {
161 DBusMessageIter iter
, sub
;
166 if (!(reply
= dbus_message_new_method_return(message
)))
169 dbus_message_iter_init_append(reply
, &iter
);
171 if (!dbus_message_iter_open_container(&iter
, DBUS_TYPE_ARRAY
, "(ssssouso)", &sub
))
174 HASHMAP_FOREACH_KEY(u
, k
, m
->units
, i
) {
175 char *unit_path
, *job_path
;
176 const char *id
, *description
, *load_state
, *active_state
, *job_type
;
177 DBusMessageIter sub2
;
184 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
187 description
= unit_description(u
);
188 load_state
= unit_load_state_to_string(u
->meta
.load_state
);
189 active_state
= unit_active_state_to_string(unit_active_state(u
));
191 if (!(unit_path
= unit_dbus_path(u
)))
195 job_id
= (uint32_t) u
->meta
.job
->id
;
197 if (!(job_path
= job_dbus_path(u
->meta
.job
))) {
202 job_type
= job_type_to_string(u
->meta
.job
->type
);
205 job_path
= unit_path
;
209 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &id
) ||
210 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &description
) ||
211 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &load_state
) ||
212 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &active_state
) ||
213 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &unit_path
) ||
214 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_UINT32
, &job_id
) ||
215 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &job_type
) ||
216 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &job_path
)) {
227 if (!dbus_message_iter_close_container(&sub
, &sub2
))
231 if (!dbus_message_iter_close_container(&iter
, &sub
))
234 } else if (dbus_message_is_method_call(message
, "org.freedesktop.systemd1", "ListJobs")) {
235 DBusMessageIter iter
, sub
;
239 if (!(reply
= dbus_message_new_method_return(message
)))
242 dbus_message_iter_init_append(reply
, &iter
);
244 if (!dbus_message_iter_open_container(&iter
, DBUS_TYPE_ARRAY
, "(usssoo)", &sub
))
247 HASHMAP_FOREACH(j
, m
->jobs
, i
) {
248 char *unit_path
, *job_path
;
249 const char *unit
, *state
, *type
;
251 DBusMessageIter sub2
;
253 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
256 id
= (uint32_t) j
->id
;
257 unit
= unit_id(j
->unit
);
258 state
= job_state_to_string(j
->state
);
259 type
= job_type_to_string(j
->type
);
261 if (!(job_path
= job_dbus_path(j
)))
264 if (!(unit_path
= unit_dbus_path(j
->unit
))) {
269 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_UINT32
, &id
) ||
270 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &unit
) ||
271 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &type
) ||
272 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &state
) ||
273 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &job_path
) ||
274 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &unit_path
)) {
283 if (!dbus_message_iter_close_container(&sub
, &sub2
))
287 if (!dbus_message_iter_close_container(&iter
, &sub
))
290 } else if (dbus_message_is_method_call(message
, "org.freedesktop.DBus.Introspectable", "Introspect")) {
291 char *introspection
= NULL
;
299 if (!(reply
= dbus_message_new_method_return(message
)))
302 /* We roll our own introspection code here, instead of
303 * relying on bus_default_message_handler() because we
304 * need to generate our introspection string
307 if (!(f
= open_memstream(&introspection
, &size
)))
310 fputs(INTROSPECTION_BEGIN
, f
);
312 HASHMAP_FOREACH_KEY(u
, k
, m
->units
, i
) {
318 if (!(p
= bus_path_escape(k
))) {
324 fprintf(f
, "<node name=\"unit/%s\"/>", p
);
328 HASHMAP_FOREACH(j
, m
->jobs
, i
)
329 fprintf(f
, "<node name=\"job/%lu\"/>", (unsigned long) j
->id
);
331 fputs(INTROSPECTION_END
, f
);
344 if (!dbus_message_append_args(reply
, DBUS_TYPE_STRING
, &introspection
, DBUS_TYPE_INVALID
)) {
352 return bus_default_message_handler(m
, message
, NULL
, NULL
);
357 if (!dbus_connection_send(connection
, reply
, NULL
))
360 dbus_message_unref(reply
);
363 return DBUS_HANDLER_RESULT_HANDLED
;
369 dbus_message_unref(reply
);
371 dbus_error_free(&error
);
373 return DBUS_HANDLER_RESULT_NEED_MEMORY
;
376 const DBusObjectPathVTable bus_manager_vtable
= {
377 .message_function
= bus_manager_message_handler