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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3f49d45a LP |
2 | |
3 | #include <errno.h> | |
a185c5aa | 4 | #include <string.h> |
3f49d45a | 5 | |
b5efdb8a | 6 | #include "alloc-util.h" |
cc377381 | 7 | #include "bus-util.h" |
f97b34a6 | 8 | #include "format-util.h" |
b1d4f8e1 LP |
9 | #include "logind-user.h" |
10 | #include "logind.h" | |
36dd5ffd | 11 | #include "missing_capability.h" |
6eb7c172 | 12 | #include "signal-util.h" |
b1d4f8e1 LP |
13 | #include "strv.h" |
14 | #include "user-util.h" | |
3f49d45a | 15 | |
01adcd69 YW |
16 | static BUS_DEFINE_PROPERTY_GET2(property_get_state, "s", User, user_get_state, user_state_to_string); |
17 | ||
cc377381 LP |
18 | static int property_get_display( |
19 | sd_bus *bus, | |
20 | const char *path, | |
21 | const char *interface, | |
22 | const char *property, | |
23 | sd_bus_message *reply, | |
ebcf1f97 LP |
24 | void *userdata, |
25 | sd_bus_error *error) { | |
3f49d45a | 26 | |
cc377381 LP |
27 | _cleanup_free_ char *p = NULL; |
28 | User *u = userdata; | |
3f49d45a | 29 | |
cc377381 LP |
30 | assert(bus); |
31 | assert(reply); | |
32 | assert(u); | |
3f49d45a | 33 | |
cc377381 LP |
34 | p = u->display ? session_bus_path(u->display) : strdup("/"); |
35 | if (!p) | |
3f49d45a LP |
36 | return -ENOMEM; |
37 | ||
cc377381 | 38 | return sd_bus_message_append(reply, "(so)", u->display ? u->display->id : "", p); |
3f49d45a LP |
39 | } |
40 | ||
cc377381 LP |
41 | static int property_get_sessions( |
42 | sd_bus *bus, | |
43 | const char *path, | |
44 | const char *interface, | |
45 | const char *property, | |
46 | sd_bus_message *reply, | |
ebcf1f97 LP |
47 | void *userdata, |
48 | sd_bus_error *error) { | |
cc377381 LP |
49 | |
50 | User *u = userdata; | |
3f49d45a | 51 | Session *session; |
cc377381 | 52 | int r; |
3f49d45a | 53 | |
cc377381 LP |
54 | assert(bus); |
55 | assert(reply); | |
3f49d45a LP |
56 | assert(u); |
57 | ||
cc377381 LP |
58 | r = sd_bus_message_open_container(reply, 'a', "(so)"); |
59 | if (r < 0) | |
60 | return r; | |
3f49d45a LP |
61 | |
62 | LIST_FOREACH(sessions_by_user, session, u->sessions) { | |
cc377381 | 63 | _cleanup_free_ char *p = NULL; |
3f49d45a LP |
64 | |
65 | p = session_bus_path(session); | |
66 | if (!p) | |
67 | return -ENOMEM; | |
68 | ||
cc377381 LP |
69 | r = sd_bus_message_append(reply, "(so)", session->id, p); |
70 | if (r < 0) | |
71 | return r; | |
3f49d45a | 72 | |
3f49d45a LP |
73 | } |
74 | ||
0f826101 | 75 | return sd_bus_message_close_container(reply); |
3f49d45a LP |
76 | } |
77 | ||
cc377381 LP |
78 | static int property_get_idle_hint( |
79 | sd_bus *bus, | |
80 | const char *path, | |
81 | const char *interface, | |
82 | const char *property, | |
83 | sd_bus_message *reply, | |
ebcf1f97 LP |
84 | void *userdata, |
85 | sd_bus_error *error) { | |
a185c5aa | 86 | |
cc377381 | 87 | User *u = userdata; |
77527da0 | 88 | |
cc377381 LP |
89 | assert(bus); |
90 | assert(reply); | |
91 | assert(u); | |
a185c5aa | 92 | |
cc377381 | 93 | return sd_bus_message_append(reply, "b", user_get_idle_hint(u, NULL) > 0); |
a185c5aa LP |
94 | } |
95 | ||
cc377381 LP |
96 | static int property_get_idle_since_hint( |
97 | sd_bus *bus, | |
98 | const char *path, | |
99 | const char *interface, | |
100 | const char *property, | |
101 | sd_bus_message *reply, | |
ebcf1f97 LP |
102 | void *userdata, |
103 | sd_bus_error *error) { | |
cc377381 LP |
104 | |
105 | User *u = userdata; | |
5cb14b37 | 106 | dual_timestamp t = DUAL_TIMESTAMP_NULL; |
a185c5aa LP |
107 | uint64_t k; |
108 | ||
cc377381 LP |
109 | assert(bus); |
110 | assert(reply); | |
a185c5aa LP |
111 | assert(u); |
112 | ||
75bbdf47 | 113 | (void) user_get_idle_hint(u, &t); |
a185c5aa LP |
114 | k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; |
115 | ||
cc377381 | 116 | return sd_bus_message_append(reply, "t", k); |
a185c5aa LP |
117 | } |
118 | ||
3a9f7a30 LP |
119 | static int property_get_linger( |
120 | sd_bus *bus, | |
121 | const char *path, | |
122 | const char *interface, | |
123 | const char *property, | |
124 | sd_bus_message *reply, | |
ebcf1f97 LP |
125 | void *userdata, |
126 | sd_bus_error *error) { | |
3a9f7a30 LP |
127 | |
128 | User *u = userdata; | |
129 | int r; | |
130 | ||
131 | assert(bus); | |
132 | assert(reply); | |
133 | assert(u); | |
134 | ||
135 | r = user_check_linger_file(u); | |
136 | ||
137 | return sd_bus_message_append(reply, "b", r > 0); | |
138 | } | |
139 | ||
19070062 | 140 | int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
cc377381 | 141 | User *u = userdata; |
3f49d45a LP |
142 | int r; |
143 | ||
cc377381 LP |
144 | assert(message); |
145 | assert(u); | |
3f49d45a | 146 | |
c529695e LP |
147 | r = bus_verify_polkit_async( |
148 | message, | |
149 | CAP_KILL, | |
150 | "org.freedesktop.login1.manage", | |
403ed0e5 | 151 | NULL, |
c529695e LP |
152 | false, |
153 | u->uid, | |
154 | &u->manager->polkit_registry, | |
155 | error); | |
156 | if (r < 0) | |
157 | return r; | |
158 | if (r == 0) | |
159 | return 1; /* Will call us back */ | |
160 | ||
9bb69af4 | 161 | r = user_stop(u, true); |
3f49d45a | 162 | if (r < 0) |
ebcf1f97 | 163 | return r; |
3f49d45a | 164 | |
df2d202e | 165 | return sd_bus_reply_method_return(message, NULL); |
3f49d45a LP |
166 | } |
167 | ||
19070062 | 168 | int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
cc377381 LP |
169 | User *u = userdata; |
170 | int32_t signo; | |
a185c5aa LP |
171 | int r; |
172 | ||
3f49d45a | 173 | assert(message); |
cc377381 | 174 | assert(u); |
3f49d45a | 175 | |
c529695e LP |
176 | r = bus_verify_polkit_async( |
177 | message, | |
178 | CAP_KILL, | |
179 | "org.freedesktop.login1.manage", | |
403ed0e5 | 180 | NULL, |
c529695e LP |
181 | false, |
182 | u->uid, | |
183 | &u->manager->polkit_registry, | |
184 | error); | |
185 | if (r < 0) | |
186 | return r; | |
187 | if (r == 0) | |
188 | return 1; /* Will call us back */ | |
189 | ||
cc377381 LP |
190 | r = sd_bus_message_read(message, "i", &signo); |
191 | if (r < 0) | |
ebcf1f97 | 192 | return r; |
a185c5aa | 193 | |
6eb7c172 | 194 | if (!SIGNAL_VALID(signo)) |
ebcf1f97 | 195 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); |
a185c5aa | 196 | |
cc377381 LP |
197 | r = user_kill(u, signo); |
198 | if (r < 0) | |
ebcf1f97 | 199 | return r; |
a185c5aa | 200 | |
df2d202e | 201 | return sd_bus_reply_method_return(message, NULL); |
3f49d45a LP |
202 | } |
203 | ||
cc377381 LP |
204 | const sd_bus_vtable user_vtable[] = { |
205 | SD_BUS_VTABLE_START(0), | |
206 | ||
556089dc LP |
207 | SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(User, uid), SD_BUS_VTABLE_PROPERTY_CONST), |
208 | SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(User, gid), SD_BUS_VTABLE_PROPERTY_CONST), | |
209 | SD_BUS_PROPERTY("Name", "s", NULL, offsetof(User, name), SD_BUS_VTABLE_PROPERTY_CONST), | |
210 | BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(User, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), | |
211 | SD_BUS_PROPERTY("RuntimePath", "s", NULL, offsetof(User, runtime_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
212 | SD_BUS_PROPERTY("Service", "s", NULL, offsetof(User, service), SD_BUS_VTABLE_PROPERTY_CONST), | |
213 | SD_BUS_PROPERTY("Slice", "s", NULL, offsetof(User, slice), SD_BUS_VTABLE_PROPERTY_CONST), | |
952d3260 | 214 | SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
cc377381 | 215 | SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), |
91ab7b01 | 216 | SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0), |
cc377381 LP |
217 | SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
218 | SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
219 | SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
3a9f7a30 | 220 | SD_BUS_PROPERTY("Linger", "b", property_get_linger, 0, 0), |
cc377381 | 221 | |
c529695e LP |
222 | SD_BUS_METHOD("Terminate", NULL, NULL, bus_user_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), |
223 | SD_BUS_METHOD("Kill", "i", NULL, bus_user_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), | |
cc377381 LP |
224 | |
225 | SD_BUS_VTABLE_END | |
226 | }; | |
3f49d45a | 227 | |
f00c3121 | 228 | int user_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
3f49d45a | 229 | Manager *m = userdata; |
309a29df | 230 | uid_t uid; |
cc377381 | 231 | User *user; |
3f49d45a LP |
232 | int r; |
233 | ||
cc377381 LP |
234 | assert(bus); |
235 | assert(path); | |
236 | assert(interface); | |
237 | assert(found); | |
238 | assert(m); | |
3f49d45a | 239 | |
927b1649 LP |
240 | if (streq(path, "/org/freedesktop/login1/user/self")) { |
241 | sd_bus_message *message; | |
3f49d45a | 242 | |
19befb2d | 243 | message = sd_bus_get_current_message(bus); |
927b1649 LP |
244 | if (!message) |
245 | return 0; | |
246 | ||
e4d2984b | 247 | r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user); |
927b1649 | 248 | if (r < 0) |
5b12334d | 249 | return r; |
927b1649 | 250 | } else { |
927b1649 | 251 | const char *p; |
3f49d45a | 252 | |
927b1649 LP |
253 | p = startswith(path, "/org/freedesktop/login1/user/_"); |
254 | if (!p) | |
255 | return 0; | |
256 | ||
309a29df | 257 | r = parse_uid(p, &uid); |
2ac0ab59 LP |
258 | if (r < 0) |
259 | return 0; | |
309a29df | 260 | |
2ac0ab59 LP |
261 | user = hashmap_get(m->users, UID_TO_PTR(uid)); |
262 | if (!user) | |
263 | return 0; | |
264 | } | |
3f49d45a | 265 | |
cc377381 LP |
266 | *found = user; |
267 | return 1; | |
3f49d45a LP |
268 | } |
269 | ||
3f49d45a LP |
270 | char *user_bus_path(User *u) { |
271 | char *s; | |
272 | ||
273 | assert(u); | |
274 | ||
de0671ee | 275 | if (asprintf(&s, "/org/freedesktop/login1/user/_"UID_FMT, u->uid) < 0) |
3f49d45a LP |
276 | return NULL; |
277 | ||
278 | return s; | |
279 | } | |
da119395 | 280 | |
f00c3121 | 281 | int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { |
cc377381 | 282 | _cleanup_strv_free_ char **l = NULL; |
ca56b0a6 | 283 | sd_bus_message *message; |
cc377381 LP |
284 | Manager *m = userdata; |
285 | User *user; | |
286 | Iterator i; | |
287 | int r; | |
da119395 | 288 | |
cc377381 LP |
289 | assert(bus); |
290 | assert(path); | |
291 | assert(nodes); | |
da119395 | 292 | |
cc377381 LP |
293 | HASHMAP_FOREACH(user, m->users, i) { |
294 | char *p; | |
da119395 | 295 | |
cc377381 LP |
296 | p = user_bus_path(user); |
297 | if (!p) | |
298 | return -ENOMEM; | |
da119395 | 299 | |
6e18964d ZJS |
300 | r = strv_consume(&l, p); |
301 | if (r < 0) | |
cc377381 | 302 | return r; |
cc377381 | 303 | } |
da119395 | 304 | |
ca56b0a6 DH |
305 | message = sd_bus_get_current_message(bus); |
306 | if (message) { | |
4afd3348 | 307 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
ca56b0a6 DH |
308 | uid_t uid; |
309 | ||
310 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); | |
311 | if (r >= 0) { | |
312 | r = sd_bus_creds_get_owner_uid(creds, &uid); | |
313 | if (r >= 0) { | |
314 | user = hashmap_get(m->users, UID_TO_PTR(uid)); | |
315 | if (user) { | |
316 | r = strv_extend(&l, "/org/freedesktop/login1/user/self"); | |
317 | if (r < 0) | |
318 | return r; | |
319 | } | |
320 | } | |
321 | } | |
322 | } | |
b298e984 | 323 | |
1cc6c93a | 324 | *nodes = TAKE_PTR(l); |
da119395 | 325 | |
cc377381 LP |
326 | return 1; |
327 | } | |
328 | ||
329 | int user_send_signal(User *u, bool new_user) { | |
330 | _cleanup_free_ char *p = NULL; | |
da119395 | 331 | |
cc377381 LP |
332 | assert(u); |
333 | ||
334 | p = user_bus_path(u); | |
335 | if (!p) | |
4654e558 | 336 | return -ENOMEM; |
da119395 | 337 | |
cc377381 LP |
338 | return sd_bus_emit_signal( |
339 | u->manager->bus, | |
340 | "/org/freedesktop/login1", | |
341 | "org.freedesktop.login1.Manager", | |
342 | new_user ? "UserNew" : "UserRemoved", | |
343 | "uo", (uint32_t) u->uid, p); | |
da119395 | 344 | } |
9418f147 | 345 | |
cc377381 | 346 | int user_send_changed(User *u, const char *properties, ...) { |
ce0fc5f5 | 347 | _cleanup_free_ char *p = NULL; |
cc377381 | 348 | char **l; |
9418f147 LP |
349 | |
350 | assert(u); | |
351 | ||
ed18b08b LP |
352 | if (!u->started) |
353 | return 0; | |
354 | ||
9418f147 LP |
355 | p = user_bus_path(u); |
356 | if (!p) | |
357 | return -ENOMEM; | |
358 | ||
cc377381 | 359 | l = strv_from_stdarg_alloca(properties); |
9418f147 | 360 | |
cc377381 | 361 | return sd_bus_emit_properties_changed_strv(u->manager->bus, p, "org.freedesktop.login1.User", l); |
9418f147 | 362 | } |