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