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3f49d45a LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
a185c5aa LP |
22 | #include <errno.h> |
23 | #include <string.h> | |
98a28fef | 24 | #include <unistd.h> |
a185c5aa | 25 | |
3f49d45a LP |
26 | #include "logind.h" |
27 | #include "dbus-common.h" | |
98a28fef | 28 | #include "strv.h" |
3f49d45a LP |
29 | |
30 | #define BUS_MANAGER_INTERFACE \ | |
31 | " <interface name=\"org.freedesktop.login1.Manager\">\n" \ | |
bef422ae | 32 | " <method name=\"GetSession\">\n" \ |
3f49d45a | 33 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ |
bef422ae | 34 | " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \ |
3f49d45a LP |
35 | " </method>\n" \ |
36 | " <method name=\"GetUser\">\n" \ | |
bef422ae | 37 | " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \ |
3f49d45a LP |
38 | " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \ |
39 | " </method>\n" \ | |
bef422ae | 40 | " <method name=\"GetSeat\">\n" \ |
3f49d45a | 41 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ |
bef422ae | 42 | " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \ |
3f49d45a | 43 | " </method>\n" \ |
bef422ae | 44 | " <method name=\"ListSessions\">\n" \ |
e1c9c2d5 | 45 | " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \ |
3f49d45a LP |
46 | " </method>\n" \ |
47 | " <method name=\"ListUsers\">\n" \ | |
48 | " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \ | |
49 | " </method>\n" \ | |
bef422ae LP |
50 | " <method name=\"ListSeats\">\n" \ |
51 | " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \ | |
3f49d45a LP |
52 | " </method>\n" \ |
53 | " <method name=\"CreateSession\">\n" \ | |
54 | " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \ | |
55 | " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \ | |
98a28fef | 56 | " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \ |
3f49d45a LP |
57 | " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \ |
58 | " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \ | |
59 | " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \ | |
60 | " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \ | |
61 | " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \ | |
62 | " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \ | |
63 | " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \ | |
64 | " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \ | |
65 | " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \ | |
98a28fef | 66 | " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \ |
3f49d45a LP |
67 | " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \ |
68 | " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \ | |
98a28fef | 69 | " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \ |
3f49d45a LP |
70 | " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \ |
71 | " </method>\n" \ | |
a185c5aa LP |
72 | " <method name=\"ActivateSession\">\n" \ |
73 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ | |
74 | " </method>\n" \ | |
3f49d45a LP |
75 | " <method name=\"TerminateSession\">\n" \ |
76 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ | |
77 | " </method>\n" \ | |
78 | " <method name=\"TerminateUser\">\n" \ | |
bef422ae | 79 | " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \ |
3f49d45a LP |
80 | " </method>\n" \ |
81 | " <method name=\"TerminateSeat\">\n" \ | |
82 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ | |
83 | " </method>\n" \ | |
84 | " <signal name=\"SessionNew\">\n" \ | |
85 | " <arg name=\"id\" type=\"s\"/>\n" \ | |
86 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
87 | " </signal>\n" \ | |
88 | " <signal name=\"SessionRemoved\">\n" \ | |
89 | " <arg name=\"id\" type=\"s\"/>\n" \ | |
90 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
91 | " </signal>\n" \ | |
92 | " <signal name=\"UserNew\">\n" \ | |
93 | " <arg name=\"uid\" type=\"u\"/>\n" \ | |
94 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
95 | " </signal>\n" \ | |
96 | " <signal name=\"UserRemoved\">\n" \ | |
97 | " <arg name=\"uid\" type=\"u\"/>\n" \ | |
98 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
99 | " </signal>\n" \ | |
100 | " <signal name=\"SeatNew\">\n" \ | |
101 | " <arg name=\"id\" type=\"s\"/>\n" \ | |
102 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
103 | " </signal>\n" \ | |
104 | " <signal name=\"SeatRemoved\">\n" \ | |
105 | " <arg name=\"id\" type=\"s\"/>\n" \ | |
106 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
107 | " </signal>\n" \ | |
108 | " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \ | |
109 | " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \ | |
110 | " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \ | |
111 | " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \ | |
112 | " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \ | |
113 | " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \ | |
114 | " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \ | |
a185c5aa LP |
115 | " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \ |
116 | " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \ | |
117 | " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \ | |
3f49d45a LP |
118 | " </interface>\n" |
119 | ||
120 | #define INTROSPECTION_BEGIN \ | |
121 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \ | |
122 | "<node>\n" \ | |
123 | BUS_MANAGER_INTERFACE \ | |
124 | BUS_PROPERTIES_INTERFACE \ | |
125 | BUS_PEER_INTERFACE \ | |
126 | BUS_INTROSPECTABLE_INTERFACE | |
127 | ||
128 | #define INTROSPECTION_END \ | |
129 | "</node>\n" | |
130 | ||
131 | #define INTERFACES_LIST \ | |
132 | BUS_GENERIC_INTERFACES_LIST \ | |
133 | "org.freedesktop.login1.Manager\0" | |
134 | ||
a185c5aa LP |
135 | static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) { |
136 | Manager *m = data; | |
77527da0 | 137 | dbus_bool_t b; |
a185c5aa LP |
138 | |
139 | assert(i); | |
140 | assert(property); | |
141 | assert(m); | |
142 | ||
77527da0 | 143 | b = manager_get_idle_hint(m, NULL) > 0; |
a185c5aa LP |
144 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b)) |
145 | return -ENOMEM; | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
150 | static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) { | |
151 | Manager *m = data; | |
152 | dual_timestamp t; | |
153 | uint64_t u; | |
154 | ||
155 | assert(i); | |
156 | assert(property); | |
157 | assert(m); | |
158 | ||
159 | manager_get_idle_hint(m, &t); | |
160 | u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; | |
161 | ||
162 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u)) | |
163 | return -ENOMEM; | |
164 | ||
165 | return 0; | |
166 | } | |
167 | ||
98a28fef LP |
168 | static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) { |
169 | Session *session = NULL; | |
170 | User *user = NULL; | |
171 | const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service; | |
172 | uint32_t uid, leader, audit_id = 0; | |
173 | dbus_bool_t remote, kill_processes; | |
174 | char **controllers = NULL, **reset_controllers = NULL; | |
175 | SessionType t; | |
176 | Seat *s; | |
177 | DBusMessageIter iter; | |
178 | int r; | |
179 | char *id, *p; | |
180 | int vtnr = -1; | |
181 | int pipe_fds[2] = { -1, -1 }; | |
182 | DBusMessage *reply = NULL; | |
183 | bool b; | |
184 | ||
185 | assert(m); | |
186 | assert(message); | |
187 | assert(_reply); | |
188 | ||
189 | if (!dbus_message_iter_init(message, &iter) || | |
190 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) | |
191 | return -EINVAL; | |
192 | ||
193 | dbus_message_iter_get_basic(&iter, &uid); | |
194 | ||
195 | if (!dbus_message_iter_next(&iter) || | |
196 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) | |
197 | return -EINVAL; | |
198 | ||
199 | dbus_message_iter_get_basic(&iter, &leader); | |
200 | ||
201 | if (leader <= 0 || | |
202 | !dbus_message_iter_next(&iter) || | |
203 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
204 | return -EINVAL; | |
205 | ||
206 | dbus_message_iter_get_basic(&iter, &service); | |
207 | ||
208 | if (!dbus_message_iter_next(&iter) || | |
209 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
210 | return -EINVAL; | |
211 | ||
212 | dbus_message_iter_get_basic(&iter, &type); | |
213 | t = session_type_from_string(type); | |
214 | ||
215 | if (t < 0 || | |
216 | !dbus_message_iter_next(&iter) || | |
217 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
218 | return -EINVAL; | |
219 | ||
220 | dbus_message_iter_get_basic(&iter, &seat); | |
221 | ||
222 | if (isempty(seat)) | |
223 | s = NULL; | |
224 | else { | |
225 | s = hashmap_get(m->seats, seat); | |
226 | if (!s) | |
227 | return -ENOENT; | |
228 | } | |
229 | ||
230 | if (!dbus_message_iter_next(&iter) || | |
231 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
232 | return -EINVAL; | |
233 | ||
234 | dbus_message_iter_get_basic(&iter, &tty); | |
235 | ||
236 | if (tty_is_vc(tty)) { | |
237 | ||
238 | if (!s) | |
239 | s = m->vtconsole; | |
240 | else if (s != m->vtconsole) | |
241 | return -EINVAL; | |
242 | ||
243 | vtnr = vtnr_from_tty(tty); | |
244 | ||
245 | if (vtnr <= 0) | |
246 | return vtnr < 0 ? vtnr : -EINVAL; | |
247 | ||
248 | } else if (s == m->vtconsole) | |
249 | return -EINVAL; | |
250 | ||
251 | if (!dbus_message_iter_next(&iter) || | |
252 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
253 | return -EINVAL; | |
254 | ||
255 | dbus_message_iter_get_basic(&iter, &display); | |
256 | ||
257 | if (!dbus_message_iter_next(&iter) || | |
258 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) | |
259 | return -EINVAL; | |
260 | ||
261 | dbus_message_iter_get_basic(&iter, &remote); | |
262 | ||
263 | if (!dbus_message_iter_next(&iter) || | |
264 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
265 | return -EINVAL; | |
266 | ||
267 | dbus_message_iter_get_basic(&iter, &remote_user); | |
268 | ||
269 | if (!dbus_message_iter_next(&iter) || | |
270 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
271 | return -EINVAL; | |
272 | ||
273 | dbus_message_iter_get_basic(&iter, &remote_host); | |
274 | ||
275 | if (!dbus_message_iter_next(&iter) || | |
276 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
277 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) | |
278 | return -EINVAL; | |
279 | ||
280 | r = bus_parse_strv_iter(&iter, &controllers); | |
281 | if (r < 0) | |
282 | return -EINVAL; | |
283 | ||
284 | if (!dbus_message_iter_next(&iter) || | |
285 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
286 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) { | |
287 | r = -EINVAL; | |
288 | goto fail; | |
289 | } | |
290 | ||
291 | r = bus_parse_strv_iter(&iter, &reset_controllers); | |
292 | if (r < 0) | |
293 | goto fail; | |
294 | ||
295 | if (!dbus_message_iter_next(&iter) || | |
296 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) { | |
297 | r = -EINVAL; | |
298 | goto fail; | |
299 | } | |
300 | ||
301 | dbus_message_iter_get_basic(&iter, &kill_processes); | |
302 | ||
303 | r = manager_add_user_by_uid(m, uid, &user); | |
304 | if (r < 0) | |
305 | goto fail; | |
306 | ||
307 | audit_session_from_pid(leader, &audit_id); | |
308 | ||
309 | if (audit_id > 0) | |
310 | asprintf(&id, "%lu", (unsigned long) audit_id); | |
311 | else | |
312 | asprintf(&id, "c%lu", ++m->session_counter); | |
313 | ||
314 | if (!id) { | |
315 | r = -ENOMEM; | |
316 | goto fail; | |
317 | } | |
318 | ||
319 | if (hashmap_get(m->sessions, id)) { | |
320 | r = -EEXIST; | |
321 | goto fail; | |
322 | } | |
323 | ||
324 | r = manager_add_session(m, user, id, &session); | |
325 | free(id); | |
326 | if (r < 0) | |
327 | goto fail; | |
328 | ||
329 | session->leader = leader; | |
330 | session->audit_id = audit_id; | |
331 | session->type = t; | |
332 | session->remote = remote; | |
333 | session->controllers = controllers; | |
334 | session->reset_controllers = reset_controllers; | |
335 | session->kill_processes = kill_processes; | |
336 | session->vtnr = vtnr; | |
337 | ||
338 | controllers = reset_controllers = NULL; | |
339 | ||
340 | if (!isempty(tty)) { | |
341 | session->tty = strdup(tty); | |
342 | if (!session->tty) { | |
343 | r = -ENOMEM; | |
344 | goto fail; | |
345 | } | |
346 | } | |
347 | ||
348 | if (!isempty(display)) { | |
349 | session->display = strdup(display); | |
350 | if (!session->display) { | |
351 | r = -ENOMEM; | |
352 | goto fail; | |
353 | } | |
354 | } | |
355 | ||
356 | if (!isempty(remote_user)) { | |
357 | session->remote_user = strdup(remote_user); | |
358 | if (!session->remote_user) { | |
359 | r = -ENOMEM; | |
360 | goto fail; | |
361 | } | |
362 | } | |
363 | ||
364 | if (!isempty(remote_host)) { | |
365 | session->remote_host = strdup(remote_host); | |
366 | if (!session->remote_host) { | |
367 | r = -ENOMEM; | |
368 | goto fail; | |
369 | } | |
370 | } | |
371 | ||
372 | if (!isempty(service)) { | |
373 | session->service = strdup(service); | |
374 | if (!session->service) { | |
375 | r = -ENOMEM; | |
376 | goto fail; | |
377 | } | |
378 | } | |
379 | ||
380 | if (pipe(pipe_fds) < 0) { | |
381 | r = -errno; | |
382 | goto fail; | |
383 | } | |
384 | ||
385 | session->pipe_fd = pipe_fds[1]; | |
386 | pipe_fds[1] = -1; | |
387 | ||
388 | if (s) { | |
389 | r = seat_attach_session(s, session); | |
390 | if (r < 0) | |
391 | goto fail; | |
392 | } | |
393 | ||
394 | r = session_start(session); | |
395 | if (r < 0) | |
396 | goto fail; | |
397 | ||
398 | reply = dbus_message_new_method_return(message); | |
399 | if (!reply) { | |
400 | r = -ENOMEM; | |
401 | goto fail; | |
402 | } | |
403 | ||
404 | p = session_bus_path(session); | |
405 | if (!p) { | |
406 | r = -ENOMEM; | |
407 | goto fail; | |
408 | } | |
409 | ||
410 | b = dbus_message_append_args( | |
411 | reply, | |
412 | DBUS_TYPE_STRING, &session->id, | |
413 | DBUS_TYPE_OBJECT_PATH, &p, | |
414 | DBUS_TYPE_STRING, &session->user->runtime_path, | |
415 | DBUS_TYPE_UNIX_FD, &pipe_fds[0], | |
416 | DBUS_TYPE_INVALID); | |
417 | free(p); | |
418 | ||
419 | if (!b) { | |
420 | r = -ENOMEM; | |
421 | goto fail; | |
422 | } | |
423 | ||
424 | close_nointr_nofail(pipe_fds[0]); | |
425 | *_reply = reply; | |
426 | ||
427 | return 0; | |
428 | ||
429 | fail: | |
430 | strv_free(controllers); | |
431 | strv_free(reset_controllers); | |
432 | ||
433 | if (session) | |
434 | session_add_to_gc_queue(session); | |
435 | ||
436 | if (user) | |
437 | user_add_to_gc_queue(user); | |
438 | ||
439 | close_pipe(pipe_fds); | |
440 | ||
441 | if (reply) | |
442 | dbus_message_unref(reply); | |
443 | ||
444 | return r; | |
445 | } | |
446 | ||
3f49d45a LP |
447 | static DBusHandlerResult manager_message_handler( |
448 | DBusConnection *connection, | |
449 | DBusMessage *message, | |
450 | void *userdata) { | |
451 | ||
452 | Manager *m = userdata; | |
453 | ||
454 | const BusProperty properties[] = { | |
a185c5aa LP |
455 | { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path }, |
456 | { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers }, | |
a185c5aa LP |
457 | { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts }, |
458 | { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users }, | |
459 | { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users }, | |
460 | { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes }, | |
461 | { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m }, | |
462 | { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m }, | |
463 | { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m }, | |
3f49d45a LP |
464 | { NULL, NULL, NULL, NULL, NULL } |
465 | }; | |
466 | ||
467 | DBusError error; | |
468 | DBusMessage *reply = NULL; | |
bef422ae | 469 | int r; |
3f49d45a LP |
470 | |
471 | assert(connection); | |
472 | assert(message); | |
473 | assert(m); | |
474 | ||
475 | dbus_error_init(&error); | |
476 | ||
bef422ae LP |
477 | if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) { |
478 | const char *name; | |
479 | char *p; | |
480 | Session *session; | |
481 | bool b; | |
482 | ||
483 | if (!dbus_message_get_args( | |
484 | message, | |
485 | &error, | |
486 | DBUS_TYPE_STRING, &name, | |
487 | DBUS_TYPE_INVALID)) | |
488 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
489 | ||
490 | session = hashmap_get(m->sessions, name); | |
491 | if (!session) | |
492 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
493 | ||
494 | reply = dbus_message_new_method_return(message); | |
495 | if (!reply) | |
496 | goto oom; | |
497 | ||
498 | p = session_bus_path(session); | |
499 | if (!p) | |
500 | goto oom; | |
501 | ||
502 | b = dbus_message_append_args( | |
503 | reply, | |
504 | DBUS_TYPE_OBJECT_PATH, &p, | |
505 | DBUS_TYPE_INVALID); | |
506 | free(p); | |
507 | ||
508 | if (!b) | |
509 | goto oom; | |
510 | ||
511 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) { | |
512 | uint32_t uid; | |
513 | char *p; | |
514 | User *user; | |
515 | bool b; | |
516 | ||
517 | if (!dbus_message_get_args( | |
518 | message, | |
519 | &error, | |
520 | DBUS_TYPE_UINT32, &uid, | |
521 | DBUS_TYPE_INVALID)) | |
522 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
523 | ||
524 | user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); | |
525 | if (!user) | |
526 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
527 | ||
528 | reply = dbus_message_new_method_return(message); | |
529 | if (!reply) | |
530 | goto oom; | |
531 | ||
532 | p = user_bus_path(user); | |
533 | if (!p) | |
534 | goto oom; | |
535 | ||
536 | b = dbus_message_append_args( | |
537 | reply, | |
538 | DBUS_TYPE_OBJECT_PATH, &p, | |
539 | DBUS_TYPE_INVALID); | |
540 | free(p); | |
541 | ||
542 | if (!b) | |
543 | goto oom; | |
544 | ||
545 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) { | |
546 | const char *name; | |
547 | char *p; | |
548 | Seat *seat; | |
549 | bool b; | |
550 | ||
551 | if (!dbus_message_get_args( | |
552 | message, | |
553 | &error, | |
554 | DBUS_TYPE_STRING, &name, | |
555 | DBUS_TYPE_INVALID)) | |
556 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
557 | ||
558 | seat = hashmap_get(m->seats, name); | |
559 | if (!seat) | |
560 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
561 | ||
562 | reply = dbus_message_new_method_return(message); | |
563 | if (!reply) | |
564 | goto oom; | |
565 | ||
566 | p = seat_bus_path(seat); | |
567 | if (!p) | |
568 | goto oom; | |
569 | ||
570 | b = dbus_message_append_args( | |
571 | reply, | |
572 | DBUS_TYPE_OBJECT_PATH, &p, | |
573 | DBUS_TYPE_INVALID); | |
574 | free(p); | |
575 | ||
576 | if (!b) | |
577 | goto oom; | |
578 | ||
e1c9c2d5 LP |
579 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) { |
580 | char *p; | |
581 | Session *session; | |
582 | Iterator i; | |
583 | DBusMessageIter iter, sub; | |
584 | const char *empty = ""; | |
585 | ||
586 | reply = dbus_message_new_method_return(message); | |
587 | if (!reply) | |
588 | goto oom; | |
589 | ||
590 | dbus_message_iter_init_append(reply, &iter); | |
591 | ||
592 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "susso", &sub)) | |
593 | goto oom; | |
594 | ||
595 | HASHMAP_FOREACH(session, m->sessions, i) { | |
596 | DBusMessageIter sub2; | |
597 | uint32_t uid; | |
598 | ||
599 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2)) | |
600 | goto oom; | |
601 | ||
602 | uid = session->user->uid; | |
603 | ||
604 | p = session_bus_path(session); | |
605 | if (!p) | |
606 | goto oom; | |
607 | ||
608 | if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) || | |
609 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) || | |
610 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) || | |
611 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) || | |
612 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) { | |
613 | free(p); | |
614 | goto oom; | |
615 | } | |
616 | ||
617 | free(p); | |
618 | ||
619 | if (!dbus_message_iter_close_container(&sub, &sub2)) | |
620 | goto oom; | |
621 | } | |
622 | ||
623 | if (!dbus_message_iter_close_container(&iter, &sub)) | |
624 | goto oom; | |
625 | ||
626 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) { | |
627 | char *p; | |
628 | User *user; | |
629 | Iterator i; | |
630 | DBusMessageIter iter, sub; | |
631 | ||
632 | reply = dbus_message_new_method_return(message); | |
633 | if (!reply) | |
634 | goto oom; | |
635 | ||
636 | dbus_message_iter_init_append(reply, &iter); | |
637 | ||
638 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "uso", &sub)) | |
639 | goto oom; | |
640 | ||
641 | HASHMAP_FOREACH(user, m->users, i) { | |
642 | DBusMessageIter sub2; | |
643 | uint32_t uid; | |
644 | ||
645 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2)) | |
646 | goto oom; | |
647 | ||
648 | uid = user->uid; | |
649 | ||
650 | p = user_bus_path(user); | |
651 | if (!p) | |
652 | goto oom; | |
653 | ||
654 | if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) || | |
655 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) || | |
656 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) { | |
657 | free(p); | |
658 | goto oom; | |
659 | } | |
660 | ||
661 | free(p); | |
662 | ||
663 | if (!dbus_message_iter_close_container(&sub, &sub2)) | |
664 | goto oom; | |
665 | } | |
666 | ||
667 | if (!dbus_message_iter_close_container(&iter, &sub)) | |
668 | goto oom; | |
669 | ||
670 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) { | |
671 | char *p; | |
672 | Seat *seat; | |
673 | Iterator i; | |
674 | DBusMessageIter iter, sub; | |
675 | ||
676 | reply = dbus_message_new_method_return(message); | |
677 | if (!reply) | |
678 | goto oom; | |
679 | ||
680 | dbus_message_iter_init_append(reply, &iter); | |
681 | ||
682 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "so", &sub)) | |
683 | goto oom; | |
684 | ||
685 | HASHMAP_FOREACH(seat, m->seats, i) { | |
686 | DBusMessageIter sub2; | |
687 | ||
688 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2)) | |
689 | goto oom; | |
690 | ||
691 | p = seat_bus_path(seat); | |
692 | if (!p) | |
693 | goto oom; | |
694 | ||
695 | if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) || | |
696 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) { | |
697 | free(p); | |
698 | goto oom; | |
699 | } | |
700 | ||
701 | free(p); | |
702 | ||
703 | if (!dbus_message_iter_close_container(&sub, &sub2)) | |
704 | goto oom; | |
705 | } | |
706 | ||
707 | if (!dbus_message_iter_close_container(&iter, &sub)) | |
708 | goto oom; | |
709 | ||
98a28fef LP |
710 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) { |
711 | ||
712 | r = bus_manager_create_session(m, message, &reply); | |
713 | if (r == -ENOMEM) | |
714 | goto oom; | |
715 | ||
716 | if (r < 0) | |
717 | return bus_send_error_reply(connection, message, &error, r); | |
718 | ||
bef422ae LP |
719 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) { |
720 | const char *name; | |
721 | Session *session; | |
722 | ||
723 | if (!dbus_message_get_args( | |
724 | message, | |
725 | &error, | |
726 | DBUS_TYPE_STRING, &name, | |
727 | DBUS_TYPE_INVALID)) | |
728 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
729 | ||
730 | session = hashmap_get(m->sessions, name); | |
731 | if (!session) | |
732 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
733 | ||
734 | r = session_activate(session); | |
735 | if (r < 0) | |
736 | return bus_send_error_reply(connection, message, NULL, r); | |
737 | ||
738 | reply = dbus_message_new_method_return(message); | |
739 | if (!reply) | |
740 | goto oom; | |
741 | ||
742 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) { | |
743 | const char *name; | |
744 | Session *session; | |
745 | ||
746 | if (!dbus_message_get_args( | |
747 | message, | |
748 | &error, | |
749 | DBUS_TYPE_STRING, &name, | |
750 | DBUS_TYPE_INVALID)) | |
751 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
752 | ||
753 | session = hashmap_get(m->sessions, name); | |
754 | if (!session) | |
755 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
756 | ||
757 | r = session_stop(session); | |
758 | if (r < 0) | |
759 | return bus_send_error_reply(connection, message, NULL, r); | |
760 | ||
761 | reply = dbus_message_new_method_return(message); | |
762 | if (!reply) | |
763 | goto oom; | |
764 | ||
765 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) { | |
766 | uint32_t uid; | |
767 | User *user; | |
768 | ||
769 | if (!dbus_message_get_args( | |
770 | message, | |
771 | &error, | |
772 | DBUS_TYPE_UINT32, &uid, | |
773 | DBUS_TYPE_INVALID)) | |
774 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
775 | ||
776 | user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); | |
777 | if (!user) | |
778 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
779 | ||
780 | r = user_stop(user); | |
781 | if (r < 0) | |
782 | return bus_send_error_reply(connection, message, NULL, r); | |
783 | ||
784 | reply = dbus_message_new_method_return(message); | |
785 | if (!reply) | |
786 | goto oom; | |
787 | ||
788 | } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) { | |
789 | const char *name; | |
790 | Seat *seat; | |
791 | ||
792 | if (!dbus_message_get_args( | |
793 | message, | |
794 | &error, | |
795 | DBUS_TYPE_STRING, &name, | |
796 | DBUS_TYPE_INVALID)) | |
797 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
798 | ||
799 | seat = hashmap_get(m->seats, name); | |
800 | if (!seat) | |
801 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
802 | ||
803 | r = seat_stop_sessions(seat); | |
804 | if (r < 0) | |
805 | return bus_send_error_reply(connection, message, NULL, r); | |
806 | ||
807 | reply = dbus_message_new_method_return(message); | |
808 | if (!reply) | |
809 | goto oom; | |
810 | ||
811 | } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) { | |
3f49d45a LP |
812 | char *introspection = NULL; |
813 | FILE *f; | |
814 | Iterator i; | |
815 | Session *session; | |
816 | Seat *seat; | |
817 | User *user; | |
818 | size_t size; | |
819 | char *p; | |
820 | ||
821 | if (!(reply = dbus_message_new_method_return(message))) | |
822 | goto oom; | |
823 | ||
824 | /* We roll our own introspection code here, instead of | |
825 | * relying on bus_default_message_handler() because we | |
826 | * need to generate our introspection string | |
827 | * dynamically. */ | |
828 | ||
829 | if (!(f = open_memstream(&introspection, &size))) | |
830 | goto oom; | |
831 | ||
832 | fputs(INTROSPECTION_BEGIN, f); | |
833 | ||
834 | HASHMAP_FOREACH(seat, m->seats, i) { | |
835 | p = bus_path_escape(seat->id); | |
836 | ||
837 | if (p) { | |
838 | fprintf(f, "<node name=\"seat/%s\"/>", p); | |
839 | free(p); | |
840 | } | |
841 | } | |
842 | ||
843 | HASHMAP_FOREACH(user, m->users, i) | |
844 | fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid); | |
845 | ||
846 | HASHMAP_FOREACH(session, m->sessions, i) { | |
847 | p = bus_path_escape(session->id); | |
848 | ||
849 | if (p) { | |
850 | fprintf(f, "<node name=\"session/%s\"/>", p); | |
851 | free(p); | |
852 | } | |
853 | } | |
854 | ||
855 | fputs(INTROSPECTION_END, f); | |
856 | ||
857 | if (ferror(f)) { | |
858 | fclose(f); | |
859 | free(introspection); | |
860 | goto oom; | |
861 | } | |
862 | ||
863 | fclose(f); | |
864 | ||
865 | if (!introspection) | |
866 | goto oom; | |
867 | ||
868 | if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) { | |
869 | free(introspection); | |
870 | goto oom; | |
871 | } | |
872 | ||
873 | free(introspection); | |
874 | } else | |
875 | return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties); | |
876 | ||
877 | if (reply) { | |
878 | if (!dbus_connection_send(connection, reply, NULL)) | |
879 | goto oom; | |
880 | ||
881 | dbus_message_unref(reply); | |
882 | } | |
883 | ||
884 | return DBUS_HANDLER_RESULT_HANDLED; | |
885 | ||
886 | oom: | |
887 | if (reply) | |
888 | dbus_message_unref(reply); | |
889 | ||
890 | dbus_error_free(&error); | |
891 | ||
892 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
893 | } | |
894 | ||
895 | const DBusObjectPathVTable bus_manager_vtable = { | |
896 | .message_function = manager_message_handler | |
897 | }; | |
9418f147 LP |
898 | |
899 | int manager_send_changed(Manager *manager, const char *properties) { | |
900 | DBusMessage *m; | |
901 | int r = -ENOMEM; | |
902 | ||
903 | assert(manager); | |
904 | ||
905 | m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties); | |
906 | if (!m) | |
907 | goto finish; | |
908 | ||
909 | if (!dbus_connection_send(manager->bus, m, NULL)) | |
910 | goto finish; | |
911 | ||
912 | r = 0; | |
913 | ||
914 | finish: | |
915 | if (m) | |
916 | dbus_message_unref(m); | |
917 | ||
918 | return r; | |
919 | } |