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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 | |
5430f7f2 LP |
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 | |
3f49d45a LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
3f49d45a | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
3f49d45a LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
a185c5aa | 23 | #include <string.h> |
3f49d45a | 24 | |
cc377381 LP |
25 | #include "util.h" |
26 | #include "bus-util.h" | |
27 | #include "strv.h" | |
3f49d45a LP |
28 | #include "logind.h" |
29 | #include "logind-seat.h" | |
3f49d45a | 30 | |
cc377381 LP |
31 | static int property_get_active_session( |
32 | sd_bus *bus, | |
33 | const char *path, | |
34 | const char *interface, | |
35 | const char *property, | |
36 | sd_bus_message *reply, | |
37 | sd_bus_error *error, | |
38 | void *userdata) { | |
39 | ||
7fd1b19b | 40 | _cleanup_free_ char *p = NULL; |
cc377381 | 41 | Seat *s = userdata; |
3f49d45a | 42 | |
cc377381 LP |
43 | assert(bus); |
44 | assert(reply); | |
3f49d45a LP |
45 | assert(s); |
46 | ||
cc377381 LP |
47 | p = s->active ? session_bus_path(s->active) : strdup("/"); |
48 | if (!p) | |
3f49d45a LP |
49 | return -ENOMEM; |
50 | ||
cc377381 LP |
51 | return sd_bus_message_append(reply, "(so)", s->active ? s->active->id : "", p); |
52 | } | |
3f49d45a | 53 | |
cc377381 LP |
54 | static int property_get_can_multi_session( |
55 | sd_bus *bus, | |
56 | const char *path, | |
57 | const char *interface, | |
58 | const char *property, | |
59 | sd_bus_message *reply, | |
60 | sd_bus_error *error, | |
61 | void *userdata) { | |
3f49d45a | 62 | |
cc377381 | 63 | Seat *s = userdata; |
3f49d45a | 64 | |
cc377381 LP |
65 | assert(bus); |
66 | assert(reply); | |
67 | assert(s); | |
3f49d45a | 68 | |
cc377381 | 69 | return sd_bus_message_append(reply, "b", seat_can_multi_session(s)); |
3f49d45a LP |
70 | } |
71 | ||
cc377381 LP |
72 | static int property_get_can_tty( |
73 | sd_bus *bus, | |
74 | const char *path, | |
75 | const char *interface, | |
76 | const char *property, | |
77 | sd_bus_message *reply, | |
78 | sd_bus_error *error, | |
79 | void *userdata) { | |
80 | ||
81 | Seat *s = userdata; | |
82 | ||
83 | assert(bus); | |
84 | assert(reply); | |
85 | assert(s); | |
86 | ||
87 | return sd_bus_message_append(reply, "b", seat_can_tty(s)); | |
88 | } | |
89 | ||
90 | static int property_get_can_graphical( | |
91 | sd_bus *bus, | |
92 | const char *path, | |
93 | const char *interface, | |
94 | const char *property, | |
95 | sd_bus_message *reply, | |
96 | sd_bus_error *error, | |
97 | void *userdata) { | |
98 | ||
99 | Seat *s = userdata; | |
100 | ||
101 | assert(bus); | |
102 | assert(reply); | |
103 | assert(s); | |
104 | ||
105 | return sd_bus_message_append(reply, "b", seat_can_tty(s)); | |
106 | } | |
107 | ||
108 | static int property_get_sessions( | |
109 | sd_bus *bus, | |
110 | const char *path, | |
111 | const char *interface, | |
112 | const char *property, | |
113 | sd_bus_message *reply, | |
114 | sd_bus_error *error, | |
115 | void *userdata) { | |
116 | ||
117 | Seat *s = userdata; | |
3f49d45a | 118 | Session *session; |
cc377381 | 119 | int r; |
3f49d45a | 120 | |
cc377381 LP |
121 | assert(bus); |
122 | assert(reply); | |
3f49d45a LP |
123 | assert(s); |
124 | ||
cc377381 LP |
125 | r = sd_bus_message_open_container(reply, 'a', "(so)"); |
126 | if (r < 0) | |
127 | return r; | |
3f49d45a LP |
128 | |
129 | LIST_FOREACH(sessions_by_seat, session, s->sessions) { | |
7fd1b19b | 130 | _cleanup_free_ char *p = NULL; |
3f49d45a | 131 | |
3f49d45a LP |
132 | p = session_bus_path(session); |
133 | if (!p) | |
134 | return -ENOMEM; | |
135 | ||
cc377381 LP |
136 | r = sd_bus_message_append(reply, "(so)", session->id, p); |
137 | if (r < 0) | |
138 | return r; | |
3f49d45a | 139 | |
3f49d45a LP |
140 | } |
141 | ||
cc377381 LP |
142 | r = sd_bus_message_close_container(reply); |
143 | if (r < 0) | |
144 | return r; | |
3f49d45a | 145 | |
cc377381 | 146 | return 1; |
3f49d45a LP |
147 | } |
148 | ||
cc377381 LP |
149 | static int property_get_idle_hint( |
150 | sd_bus *bus, | |
151 | const char *path, | |
152 | const char *interface, | |
153 | const char *property, | |
154 | sd_bus_message *reply, | |
155 | sd_bus_error *error, | |
156 | void *userdata) { | |
f401e48c | 157 | |
cc377381 | 158 | Seat *s = userdata; |
f1a8e221 | 159 | |
cc377381 LP |
160 | assert(bus); |
161 | assert(reply); | |
f1a8e221 LP |
162 | assert(s); |
163 | ||
cc377381 | 164 | return sd_bus_message_append(reply, "b", seat_get_idle_hint(s, NULL) > 0); |
f1a8e221 LP |
165 | } |
166 | ||
cc377381 LP |
167 | static int property_get_idle_since_hint( |
168 | sd_bus *bus, | |
169 | const char *path, | |
170 | const char *interface, | |
171 | const char *property, | |
172 | sd_bus_message *reply, | |
173 | sd_bus_error *error, | |
174 | void *userdata) { | |
175 | ||
176 | Seat *s = userdata; | |
177 | dual_timestamp t; | |
178 | uint64_t u; | |
179 | int r; | |
f1a8e221 | 180 | |
cc377381 LP |
181 | assert(bus); |
182 | assert(reply); | |
f1a8e221 LP |
183 | assert(s); |
184 | ||
cc377381 LP |
185 | r = seat_get_idle_hint(s, &t); |
186 | if (r < 0) | |
187 | return r; | |
f1a8e221 | 188 | |
cc377381 | 189 | u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; |
f1a8e221 | 190 | |
cc377381 | 191 | return sd_bus_message_append(reply, "t", u); |
f1a8e221 LP |
192 | } |
193 | ||
cc377381 LP |
194 | static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata) { |
195 | Seat *s = userdata; | |
196 | int r; | |
a185c5aa | 197 | |
cc377381 LP |
198 | assert(bus); |
199 | assert(message); | |
a185c5aa LP |
200 | assert(s); |
201 | ||
cc377381 LP |
202 | r = seat_stop_sessions(s); |
203 | if (r < 0) | |
204 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
a185c5aa | 205 | |
cc377381 | 206 | return sd_bus_reply_method_return(bus, message, NULL); |
a185c5aa LP |
207 | } |
208 | ||
cc377381 LP |
209 | static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata) { |
210 | Seat *s = userdata; | |
211 | const char *name; | |
212 | Session *session; | |
213 | int r; | |
a185c5aa | 214 | |
cc377381 LP |
215 | assert(bus); |
216 | assert(message); | |
a185c5aa LP |
217 | assert(s); |
218 | ||
cc377381 LP |
219 | r = sd_bus_message_read(message, "s", &name); |
220 | if (r < 0) | |
221 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
a185c5aa | 222 | |
cc377381 LP |
223 | session = hashmap_get(s->manager->sessions, name); |
224 | if (!session) | |
225 | return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); | |
a185c5aa | 226 | |
cc377381 LP |
227 | if (session->seat != s) |
228 | return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id); | |
a185c5aa | 229 | |
cc377381 LP |
230 | r = session_activate(session); |
231 | if (r < 0) | |
232 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
3f49d45a | 233 | |
cc377381 | 234 | return sd_bus_reply_method_return(bus, message, NULL); |
3f49d45a LP |
235 | } |
236 | ||
cc377381 LP |
237 | const sd_bus_vtable seat_vtable[] = { |
238 | SD_BUS_VTABLE_START(0), | |
a185c5aa | 239 | |
cc377381 LP |
240 | SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), 0), |
241 | SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
242 | SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, 0), | |
243 | SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, 0), | |
244 | SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
245 | SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
246 | SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
247 | SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
248 | SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
3f49d45a | 249 | |
cc377381 LP |
250 | SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, 0), |
251 | SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, 0), | |
a185c5aa | 252 | |
cc377381 LP |
253 | SD_BUS_VTABLE_END |
254 | }; | |
a185c5aa | 255 | |
cc377381 LP |
256 | int seat_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *userdata) { |
257 | _cleanup_free_ char *e = NULL; | |
258 | Manager *m = userdata; | |
259 | Seat *seat; | |
260 | const char *p; | |
a185c5aa | 261 | |
cc377381 LP |
262 | assert(bus); |
263 | assert(path); | |
264 | assert(interface); | |
265 | assert(found); | |
266 | assert(m); | |
a185c5aa | 267 | |
cc377381 LP |
268 | p = startswith(path, "/org/freedesktop/login1/seat/"); |
269 | if (!p) | |
270 | return 0; | |
a185c5aa | 271 | |
cc377381 LP |
272 | e = bus_path_unescape(p); |
273 | if (!e) | |
274 | return -ENOMEM; | |
a185c5aa | 275 | |
cc377381 LP |
276 | seat = hashmap_get(m->seats, e); |
277 | if (!seat) | |
278 | return 0; | |
a185c5aa | 279 | |
cc377381 LP |
280 | *found = seat; |
281 | return 1; | |
282 | } | |
a185c5aa | 283 | |
cc377381 LP |
284 | char *seat_bus_path(Seat *s) { |
285 | _cleanup_free_ char *t = NULL; | |
a185c5aa | 286 | |
cc377381 | 287 | assert(s); |
a185c5aa | 288 | |
cc377381 LP |
289 | t = bus_path_escape(s->id); |
290 | if (!t) | |
291 | return NULL; | |
a185c5aa | 292 | |
cc377381 | 293 | return strappend("/org/freedesktop/login1/seat/", t); |
3f49d45a LP |
294 | } |
295 | ||
cc377381 LP |
296 | int seat_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata) { |
297 | _cleanup_strv_free_ char **l = NULL; | |
3f49d45a | 298 | Manager *m = userdata; |
cc377381 LP |
299 | Seat *seat; |
300 | Iterator i; | |
3f49d45a LP |
301 | int r; |
302 | ||
cc377381 LP |
303 | assert(bus); |
304 | assert(path); | |
305 | assert(nodes); | |
3f49d45a | 306 | |
cc377381 LP |
307 | HASHMAP_FOREACH(seat, m->seats, i) { |
308 | char *p; | |
3f49d45a | 309 | |
cc377381 LP |
310 | p = seat_bus_path(seat); |
311 | if (!p) | |
312 | return -ENOMEM; | |
3f49d45a | 313 | |
cc377381 LP |
314 | r = strv_push(&l, p); |
315 | if (r < 0) { | |
316 | free(p); | |
317 | return r; | |
3f49d45a | 318 | } |
3f49d45a LP |
319 | } |
320 | ||
cc377381 LP |
321 | *nodes = l; |
322 | l = NULL; | |
3f49d45a | 323 | |
cc377381 | 324 | return 1; |
3f49d45a | 325 | } |
da119395 LP |
326 | |
327 | int seat_send_signal(Seat *s, bool new_seat) { | |
ce0fc5f5 | 328 | _cleanup_free_ char *p = NULL; |
da119395 LP |
329 | |
330 | assert(s); | |
331 | ||
da119395 LP |
332 | p = seat_bus_path(s); |
333 | if (!p) | |
4654e558 | 334 | return -ENOMEM; |
da119395 | 335 | |
cc377381 LP |
336 | return sd_bus_emit_signal( |
337 | s->manager->bus, | |
338 | "/org/freedesktop/login1", | |
339 | "org.freedesktop.login1.Manager", | |
340 | new_seat ? "SeatNew" : "SeatRemoved", | |
341 | "so", s->id, p); | |
da119395 | 342 | } |
9418f147 | 343 | |
cc377381 | 344 | int seat_send_changed(Seat *s, const char *properties, ...) { |
ce0fc5f5 | 345 | _cleanup_free_ char *p = NULL; |
cc377381 | 346 | char **l; |
9418f147 LP |
347 | |
348 | assert(s); | |
349 | ||
ed18b08b LP |
350 | if (!s->started) |
351 | return 0; | |
352 | ||
9418f147 LP |
353 | p = seat_bus_path(s); |
354 | if (!p) | |
355 | return -ENOMEM; | |
356 | ||
cc377381 | 357 | l = strv_from_stdarg_alloca(properties); |
9418f147 | 358 | |
cc377381 | 359 | return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l); |
9418f147 | 360 | } |