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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 "strv.h" |
26 | #include "bus-util.h" | |
27 | ||
3f49d45a LP |
28 | #include "logind.h" |
29 | #include "logind-user.h" | |
3f49d45a | 30 | |
cc377381 LP |
31 | static int property_get_display( |
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) { | |
3f49d45a | 39 | |
cc377381 LP |
40 | _cleanup_free_ char *p = NULL; |
41 | User *u = userdata; | |
3f49d45a | 42 | |
cc377381 LP |
43 | assert(bus); |
44 | assert(reply); | |
45 | assert(u); | |
3f49d45a | 46 | |
cc377381 LP |
47 | p = u->display ? session_bus_path(u->display) : strdup("/"); |
48 | if (!p) | |
3f49d45a LP |
49 | return -ENOMEM; |
50 | ||
cc377381 | 51 | return sd_bus_message_append(reply, "(so)", u->display ? u->display->id : "", p); |
3f49d45a LP |
52 | } |
53 | ||
cc377381 LP |
54 | static int property_get_state( |
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 | User *u = userdata; |
3f49d45a | 64 | |
cc377381 LP |
65 | assert(bus); |
66 | assert(reply); | |
67 | assert(u); | |
3f49d45a | 68 | |
cc377381 | 69 | return sd_bus_message_append(reply, "s", user_state_to_string(user_get_state(u))); |
3f49d45a LP |
70 | } |
71 | ||
cc377381 LP |
72 | static int property_get_sessions( |
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 | User *u = userdata; | |
3f49d45a | 82 | Session *session; |
cc377381 | 83 | int r; |
3f49d45a | 84 | |
cc377381 LP |
85 | assert(bus); |
86 | assert(reply); | |
3f49d45a LP |
87 | assert(u); |
88 | ||
cc377381 LP |
89 | r = sd_bus_message_open_container(reply, 'a', "(so)"); |
90 | if (r < 0) | |
91 | return r; | |
3f49d45a LP |
92 | |
93 | LIST_FOREACH(sessions_by_user, session, u->sessions) { | |
cc377381 | 94 | _cleanup_free_ char *p = NULL; |
3f49d45a LP |
95 | |
96 | p = session_bus_path(session); | |
97 | if (!p) | |
98 | return -ENOMEM; | |
99 | ||
cc377381 LP |
100 | r = sd_bus_message_append(reply, "(so)", session->id, p); |
101 | if (r < 0) | |
102 | return r; | |
3f49d45a | 103 | |
3f49d45a LP |
104 | } |
105 | ||
cc377381 LP |
106 | r = sd_bus_message_close_container(reply); |
107 | if (r < 0) | |
108 | return r; | |
3f49d45a | 109 | |
cc377381 | 110 | return 1; |
3f49d45a LP |
111 | } |
112 | ||
cc377381 LP |
113 | static int property_get_idle_hint( |
114 | sd_bus *bus, | |
115 | const char *path, | |
116 | const char *interface, | |
117 | const char *property, | |
118 | sd_bus_message *reply, | |
119 | sd_bus_error *error, | |
120 | void *userdata) { | |
a185c5aa | 121 | |
cc377381 | 122 | User *u = userdata; |
77527da0 | 123 | |
cc377381 LP |
124 | assert(bus); |
125 | assert(reply); | |
126 | assert(u); | |
a185c5aa | 127 | |
cc377381 | 128 | return sd_bus_message_append(reply, "b", user_get_idle_hint(u, NULL) > 0); |
a185c5aa LP |
129 | } |
130 | ||
cc377381 LP |
131 | static int property_get_idle_since_hint( |
132 | sd_bus *bus, | |
133 | const char *path, | |
134 | const char *interface, | |
135 | const char *property, | |
136 | sd_bus_message *reply, | |
137 | sd_bus_error *error, | |
138 | void *userdata) { | |
139 | ||
140 | User *u = userdata; | |
a185c5aa LP |
141 | dual_timestamp t; |
142 | uint64_t k; | |
143 | ||
cc377381 LP |
144 | assert(bus); |
145 | assert(reply); | |
a185c5aa LP |
146 | assert(u); |
147 | ||
148 | user_get_idle_hint(u, &t); | |
149 | k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; | |
150 | ||
cc377381 | 151 | return sd_bus_message_append(reply, "t", k); |
a185c5aa LP |
152 | } |
153 | ||
3a9f7a30 LP |
154 | static int property_get_linger( |
155 | sd_bus *bus, | |
156 | const char *path, | |
157 | const char *interface, | |
158 | const char *property, | |
159 | sd_bus_message *reply, | |
160 | sd_bus_error *error, | |
161 | void *userdata) { | |
162 | ||
163 | User *u = userdata; | |
164 | int r; | |
165 | ||
166 | assert(bus); | |
167 | assert(reply); | |
168 | assert(u); | |
169 | ||
170 | r = user_check_linger_file(u); | |
171 | ||
172 | return sd_bus_message_append(reply, "b", r > 0); | |
173 | } | |
174 | ||
cc377381 LP |
175 | static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata) { |
176 | User *u = userdata; | |
3f49d45a LP |
177 | int r; |
178 | ||
cc377381 LP |
179 | assert(bus); |
180 | assert(message); | |
181 | assert(u); | |
3f49d45a | 182 | |
cc377381 | 183 | r = user_stop(u); |
3f49d45a | 184 | if (r < 0) |
df2d202e | 185 | return sd_bus_reply_method_errno(message, r, NULL); |
3f49d45a | 186 | |
df2d202e | 187 | return sd_bus_reply_method_return(message, NULL); |
3f49d45a LP |
188 | } |
189 | ||
cc377381 LP |
190 | static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata) { |
191 | User *u = userdata; | |
192 | int32_t signo; | |
a185c5aa LP |
193 | int r; |
194 | ||
cc377381 | 195 | assert(bus); |
3f49d45a | 196 | assert(message); |
cc377381 | 197 | assert(u); |
3f49d45a | 198 | |
cc377381 LP |
199 | r = sd_bus_message_read(message, "i", &signo); |
200 | if (r < 0) | |
df2d202e | 201 | return sd_bus_reply_method_errno(message, r, NULL); |
a185c5aa | 202 | |
cc377381 | 203 | if (signo <= 0 || signo >= _NSIG) |
df2d202e | 204 | return sd_bus_reply_method_errorf(message, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); |
a185c5aa | 205 | |
cc377381 LP |
206 | r = user_kill(u, signo); |
207 | if (r < 0) | |
df2d202e | 208 | return sd_bus_reply_method_errno(message, r, NULL); |
a185c5aa | 209 | |
df2d202e | 210 | return sd_bus_reply_method_return(message, NULL); |
3f49d45a LP |
211 | } |
212 | ||
cc377381 LP |
213 | const sd_bus_vtable user_vtable[] = { |
214 | SD_BUS_VTABLE_START(0), | |
215 | ||
216 | SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(User, uid), 0), | |
217 | SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(User, gid), 0), | |
218 | SD_BUS_PROPERTY("Name", "s", NULL, offsetof(User, name), 0), | |
219 | SD_BUS_PROPERTY("Timestamp", "t", NULL, offsetof(User, timestamp.realtime), 0), | |
220 | SD_BUS_PROPERTY("TimestampMonotonic", "t", NULL, offsetof(User, timestamp.monotonic), 0), | |
221 | SD_BUS_PROPERTY("RuntimePath", "s", NULL, offsetof(User, runtime_path), 0), | |
222 | SD_BUS_PROPERTY("Service", "s", NULL, offsetof(User, service), 0), | |
223 | SD_BUS_PROPERTY("Slice", "s", NULL, offsetof(User, slice), 0), | |
224 | SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, 0), | |
225 | SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), | |
226 | SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
227 | SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
228 | SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
229 | SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
3a9f7a30 | 230 | SD_BUS_PROPERTY("Linger", "b", property_get_linger, 0, 0), |
cc377381 LP |
231 | |
232 | SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, 0), | |
233 | SD_BUS_METHOD("Kill", "i", NULL, method_kill, 0), | |
234 | ||
235 | SD_BUS_VTABLE_END | |
236 | }; | |
3f49d45a | 237 | |
cc377381 | 238 | int user_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *userdata) { |
3f49d45a | 239 | Manager *m = userdata; |
cc377381 | 240 | User *user; |
3f49d45a LP |
241 | int r; |
242 | ||
cc377381 LP |
243 | assert(bus); |
244 | assert(path); | |
245 | assert(interface); | |
246 | assert(found); | |
247 | assert(m); | |
3f49d45a | 248 | |
927b1649 LP |
249 | if (streq(path, "/org/freedesktop/login1/user/self")) { |
250 | sd_bus_message *message; | |
251 | pid_t pid; | |
3f49d45a | 252 | |
927b1649 LP |
253 | message = sd_bus_get_current(bus); |
254 | if (!message) | |
255 | return 0; | |
256 | ||
257 | r = sd_bus_get_owner_pid(bus, sd_bus_message_get_sender(message), &pid); | |
258 | if (r < 0) | |
259 | return 0; | |
260 | ||
261 | r = manager_get_user_by_pid(m, pid, &user); | |
262 | if (r <= 0) | |
263 | return 0; | |
264 | } else { | |
265 | unsigned long lu; | |
266 | const char *p; | |
3f49d45a | 267 | |
927b1649 LP |
268 | p = startswith(path, "/org/freedesktop/login1/user/_"); |
269 | if (!p) | |
270 | return 0; | |
271 | ||
272 | r = safe_atolu(p, &lu); | |
273 | if (r < 0) | |
274 | return 0; | |
275 | ||
276 | user = hashmap_get(m->users, ULONG_TO_PTR(lu)); | |
277 | if (!user) | |
278 | return 0; | |
279 | } | |
3f49d45a | 280 | |
cc377381 LP |
281 | *found = user; |
282 | return 1; | |
3f49d45a LP |
283 | } |
284 | ||
3f49d45a LP |
285 | char *user_bus_path(User *u) { |
286 | char *s; | |
287 | ||
288 | assert(u); | |
289 | ||
9444b1f2 | 290 | if (asprintf(&s, "/org/freedesktop/login1/user/_%llu", (unsigned long long) u->uid) < 0) |
3f49d45a LP |
291 | return NULL; |
292 | ||
293 | return s; | |
294 | } | |
da119395 | 295 | |
cc377381 LP |
296 | int user_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata) { |
297 | _cleanup_strv_free_ char **l = NULL; | |
298 | Manager *m = userdata; | |
299 | User *user; | |
300 | Iterator i; | |
301 | int r; | |
da119395 | 302 | |
cc377381 LP |
303 | assert(bus); |
304 | assert(path); | |
305 | assert(nodes); | |
da119395 | 306 | |
cc377381 LP |
307 | HASHMAP_FOREACH(user, m->users, i) { |
308 | char *p; | |
da119395 | 309 | |
cc377381 LP |
310 | p = user_bus_path(user); |
311 | if (!p) | |
312 | return -ENOMEM; | |
da119395 | 313 | |
cc377381 LP |
314 | r = strv_push(&l, p); |
315 | if (r < 0) { | |
316 | free(p); | |
317 | return r; | |
318 | } | |
319 | } | |
da119395 | 320 | |
cc377381 LP |
321 | *nodes = l; |
322 | l = NULL; | |
da119395 | 323 | |
cc377381 LP |
324 | return 1; |
325 | } | |
326 | ||
327 | int user_send_signal(User *u, bool new_user) { | |
328 | _cleanup_free_ char *p = NULL; | |
da119395 | 329 | |
cc377381 LP |
330 | assert(u); |
331 | ||
332 | p = user_bus_path(u); | |
333 | if (!p) | |
4654e558 | 334 | return -ENOMEM; |
da119395 | 335 | |
cc377381 LP |
336 | return sd_bus_emit_signal( |
337 | u->manager->bus, | |
338 | "/org/freedesktop/login1", | |
339 | "org.freedesktop.login1.Manager", | |
340 | new_user ? "UserNew" : "UserRemoved", | |
341 | "uo", (uint32_t) u->uid, p); | |
da119395 | 342 | } |
9418f147 | 343 | |
cc377381 | 344 | int user_send_changed(User *u, const char *properties, ...) { |
ce0fc5f5 | 345 | _cleanup_free_ char *p = NULL; |
cc377381 | 346 | char **l; |
9418f147 LP |
347 | |
348 | assert(u); | |
349 | ||
ed18b08b LP |
350 | if (!u->started) |
351 | return 0; | |
352 | ||
9418f147 LP |
353 | p = user_bus_path(u); |
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(u->manager->bus, p, "org.freedesktop.login1.User", l); |
9418f147 | 360 | } |