]>
Commit | Line | Data |
---|---|---|
f401e48c 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 | |
f401e48c 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. |
f401e48c | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
f401e48c LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <dbus/dbus.h> | |
23 | ||
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | ||
877d54e9 LP |
28 | #include "systemd/sd-id128.h" |
29 | #include "systemd/sd-messages.h" | |
f401e48c LP |
30 | #include "util.h" |
31 | #include "strv.h" | |
32 | #include "dbus-common.h" | |
33 | #include "polkit.h" | |
ad740100 | 34 | #include "def.h" |
bbc98d32 | 35 | #include "hwclock.h" |
b32d1675 | 36 | #include "conf-files.h" |
424a19f8 | 37 | #include "path-util.h" |
a5c32cff HH |
38 | #include "fileio-label.h" |
39 | #include "label.h" | |
f401e48c LP |
40 | |
41 | #define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n" | |
42 | #define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n" | |
43 | ||
91f9dcaf | 44 | #define INTERFACE \ |
f401e48c LP |
45 | " <interface name=\"org.freedesktop.timedate1\">\n" \ |
46 | " <property name=\"Timezone\" type=\"s\" access=\"read\"/>\n" \ | |
47 | " <property name=\"LocalRTC\" type=\"b\" access=\"read\"/>\n" \ | |
6ffe5e37 | 48 | " <property name=\"CanNTP\" type=\"b\" access=\"read\"/>\n" \ |
c5f0532f | 49 | " <property name=\"NTP\" type=\"b\" access=\"read\"/>\n" \ |
f401e48c LP |
50 | " <method name=\"SetTime\">\n" \ |
51 | " <arg name=\"usec_utc\" type=\"x\" direction=\"in\"/>\n" \ | |
52 | " <arg name=\"relative\" type=\"b\" direction=\"in\"/>\n" \ | |
53 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
54 | " </method>\n" \ | |
55 | " <method name=\"SetTimezone\">\n" \ | |
56 | " <arg name=\"timezone\" type=\"s\" direction=\"in\"/>\n" \ | |
57 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
58 | " </method>\n" \ | |
59 | " <method name=\"SetLocalRTC\">\n" \ | |
60 | " <arg name=\"local_rtc\" type=\"b\" direction=\"in\"/>\n" \ | |
91f9dcaf | 61 | " <arg name=\"fix_system\" type=\"b\" direction=\"in\"/>\n" \ |
f401e48c LP |
62 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ |
63 | " </method>\n" \ | |
c5f0532f LP |
64 | " <method name=\"SetNTP\">\n" \ |
65 | " <arg name=\"use_ntp\" type=\"b\" direction=\"in\"/>\n" \ | |
66 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
67 | " </method>\n" \ | |
91f9dcaf LP |
68 | " </interface>\n" |
69 | ||
70 | #define INTROSPECTION \ | |
71 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \ | |
72 | "<node>\n" \ | |
73 | INTERFACE \ | |
f401e48c LP |
74 | BUS_PROPERTIES_INTERFACE \ |
75 | BUS_INTROSPECTABLE_INTERFACE \ | |
76 | BUS_PEER_INTERFACE \ | |
77 | "</node>\n" | |
78 | ||
79 | #define INTERFACES_LIST \ | |
80 | BUS_GENERIC_INTERFACES_LIST \ | |
3417e2c3 | 81 | "org.freedesktop.timedate1\0" |
f401e48c | 82 | |
91f9dcaf LP |
83 | const char timedate_interface[] _introspect_("timedate1") = INTERFACE; |
84 | ||
d200735e MS |
85 | typedef struct TZ { |
86 | char *zone; | |
87 | bool local_rtc; | |
6ffe5e37 | 88 | int can_ntp; |
d200735e MS |
89 | int use_ntp; |
90 | } TZ; | |
f401e48c | 91 | |
d200735e | 92 | static TZ tz = { |
6ffe5e37 | 93 | .can_ntp = -1, |
d200735e MS |
94 | .use_ntp = -1, |
95 | }; | |
96 | ||
97 | static usec_t remain_until; | |
ad740100 | 98 | |
f401e48c | 99 | static void free_data(void) { |
d200735e MS |
100 | free(tz.zone); |
101 | tz.zone = NULL; | |
f401e48c | 102 | |
d200735e | 103 | tz.local_rtc = false; |
f401e48c LP |
104 | } |
105 | ||
106 | static bool valid_timezone(const char *name) { | |
107 | const char *p; | |
108 | char *t; | |
109 | bool slash = false; | |
110 | int r; | |
111 | struct stat st; | |
112 | ||
113 | assert(name); | |
114 | ||
115 | if (*name == '/' || *name == 0) | |
116 | return false; | |
117 | ||
118 | for (p = name; *p; p++) { | |
119 | if (!(*p >= '0' && *p <= '9') && | |
120 | !(*p >= 'a' && *p <= 'z') && | |
121 | !(*p >= 'A' && *p <= 'Z') && | |
122 | !(*p == '-' || *p == '_' || *p == '+' || *p == '/')) | |
123 | return false; | |
124 | ||
125 | if (*p == '/') { | |
126 | ||
127 | if (slash) | |
128 | return false; | |
129 | ||
130 | slash = true; | |
131 | } else | |
132 | slash = false; | |
133 | } | |
134 | ||
135 | if (slash) | |
136 | return false; | |
137 | ||
424a19f8 | 138 | t = strappend("/usr/share/zoneinfo/", name); |
f401e48c LP |
139 | if (!t) |
140 | return false; | |
141 | ||
142 | r = stat(t, &st); | |
143 | free(t); | |
144 | ||
145 | if (r < 0) | |
146 | return false; | |
147 | ||
148 | if (!S_ISREG(st.st_mode)) | |
149 | return false; | |
150 | ||
151 | return true; | |
152 | } | |
153 | ||
f401e48c LP |
154 | static int read_data(void) { |
155 | int r; | |
424a19f8 | 156 | _cleanup_free_ char *t = NULL; |
f401e48c LP |
157 | |
158 | free_data(); | |
159 | ||
92c4ef2d SL |
160 | r = readlink_malloc("/etc/localtime", &t); |
161 | if (r < 0) { | |
162 | if (r == -EINVAL) | |
424a19f8 | 163 | log_warning("/etc/localtime should be a symbolic link to a timezone data file in /usr/share/zoneinfo/."); |
92c4ef2d | 164 | else |
424a19f8 | 165 | log_warning("Failed to get target of /etc/localtime: %s", strerror(-r)); |
92c4ef2d | 166 | } else { |
424a19f8 | 167 | const char *e; |
92c4ef2d | 168 | |
424a19f8 LP |
169 | e = path_startswith(t, "/usr/share/zoneinfo/"); |
170 | if (!e) | |
171 | e = path_startswith(t, "../usr/share/zoneinfo/"); | |
172 | ||
173 | if (!e) | |
174 | log_warning("/etc/localtime should be a symbolic link to a timezone data file in /usr/share/zoneinfo/."); | |
92c4ef2d | 175 | else { |
424a19f8 | 176 | tz.zone = strdup(e); |
92c4ef2d SL |
177 | if (!tz.zone) |
178 | return log_oom(); | |
179 | ||
180 | goto have_timezone; | |
181 | } | |
182 | } | |
183 | ||
92c4ef2d | 184 | have_timezone: |
d200735e MS |
185 | if (isempty(tz.zone)) { |
186 | free(tz.zone); | |
187 | tz.zone = NULL; | |
a724d2ed | 188 | } |
f401e48c | 189 | |
d200735e | 190 | tz.local_rtc = hwclock_is_localtime() > 0; |
f401e48c LP |
191 | |
192 | return 0; | |
193 | } | |
194 | ||
195 | static int write_data_timezone(void) { | |
196 | int r = 0; | |
424a19f8 | 197 | _cleanup_free_ char *p = NULL; |
e19a21a8 | 198 | |
d200735e | 199 | if (!tz.zone) { |
424a19f8 | 200 | if (unlink("/etc/localtime") < 0 && errno != ENOENT) |
f401e48c LP |
201 | r = -errno; |
202 | ||
f401e48c LP |
203 | return r; |
204 | } | |
205 | ||
424a19f8 | 206 | p = strappend("../usr/share/zoneinfo/", tz.zone); |
0d0f0c50 SL |
207 | if (!p) |
208 | return log_oom(); | |
f401e48c | 209 | |
424a19f8 | 210 | r = symlink_atomic(p, "/etc/localtime"); |
f401e48c | 211 | if (r < 0) |
424a19f8 | 212 | return r; |
f401e48c | 213 | |
f401e48c LP |
214 | return 0; |
215 | } | |
216 | ||
217 | static int write_data_local_rtc(void) { | |
218 | int r; | |
219 | char *s, *w; | |
220 | ||
221 | r = read_full_file("/etc/adjtime", &s, NULL); | |
222 | if (r < 0) { | |
223 | if (r != -ENOENT) | |
224 | return r; | |
225 | ||
d200735e | 226 | if (!tz.local_rtc) |
f401e48c LP |
227 | return 0; |
228 | ||
229 | w = strdup(NULL_ADJTIME_LOCAL); | |
230 | if (!w) | |
231 | return -ENOMEM; | |
232 | } else { | |
233 | char *p, *e; | |
234 | size_t a, b; | |
235 | ||
236 | p = strchr(s, '\n'); | |
237 | if (!p) { | |
238 | free(s); | |
239 | return -EIO; | |
240 | } | |
241 | ||
242 | p = strchr(p+1, '\n'); | |
243 | if (!p) { | |
244 | free(s); | |
245 | return -EIO; | |
246 | } | |
247 | ||
248 | p++; | |
249 | e = strchr(p, '\n'); | |
8ea913b2 | 250 | if (!e) { |
f401e48c LP |
251 | free(s); |
252 | return -EIO; | |
253 | } | |
254 | ||
255 | a = p - s; | |
256 | b = strlen(e); | |
257 | ||
d200735e | 258 | w = new(char, a + (tz.local_rtc ? 5 : 3) + b + 1); |
f401e48c LP |
259 | if (!w) { |
260 | free(s); | |
261 | return -ENOMEM; | |
262 | } | |
263 | ||
d200735e | 264 | *(char*) mempcpy(stpcpy(mempcpy(w, s, a), tz.local_rtc ? "LOCAL" : "UTC"), e, b) = 0; |
f401e48c LP |
265 | |
266 | if (streq(w, NULL_ADJTIME_UTC)) { | |
267 | free(w); | |
268 | ||
269 | if (unlink("/etc/adjtime") < 0) { | |
270 | if (errno != ENOENT) | |
271 | return -errno; | |
272 | } | |
273 | ||
274 | return 0; | |
275 | } | |
276 | } | |
a5c32cff | 277 | label_init("/etc"); |
574d5f2d | 278 | r = write_string_file_atomic_label("/etc/adjtime", w); |
f401e48c LP |
279 | free(w); |
280 | ||
281 | return r; | |
282 | } | |
283 | ||
ac7019f3 | 284 | static char** get_ntp_services(void) { |
b32d1675 LP |
285 | char **r = NULL, **files, **i; |
286 | int k; | |
287 | ||
7850b3b8 | 288 | k = conf_files_list(&files, ".list", NULL, |
b32d1675 LP |
289 | "/etc/systemd/ntp-units.d", |
290 | "/run/systemd/ntp-units.d", | |
291 | "/usr/local/lib/systemd/ntp-units.d", | |
292 | "/usr/lib/systemd/ntp-units.d", | |
293 | NULL); | |
294 | if (k < 0) | |
ac7019f3 LP |
295 | return NULL; |
296 | ||
b32d1675 LP |
297 | STRV_FOREACH(i, files) { |
298 | FILE *f; | |
ac7019f3 | 299 | |
b32d1675 LP |
300 | f = fopen(*i, "re"); |
301 | if (!f) | |
302 | continue; | |
ac7019f3 | 303 | |
b32d1675 LP |
304 | for (;;) { |
305 | char line[PATH_MAX], *l, **q; | |
ac7019f3 | 306 | |
b32d1675 | 307 | if (!fgets(line, sizeof(line), f)) { |
ac7019f3 | 308 | |
b32d1675 LP |
309 | if (ferror(f)) |
310 | log_error("Failed to read NTP units file: %m"); | |
ac7019f3 | 311 | |
b32d1675 LP |
312 | break; |
313 | } | |
314 | ||
315 | l = strstrip(line); | |
316 | if (l[0] == 0 || l[0] == '#') | |
317 | continue; | |
318 | ||
319 | q = strv_append(r, l); | |
320 | if (!q) { | |
0d0f0c50 | 321 | log_oom(); |
b32d1675 LP |
322 | break; |
323 | } | |
ac7019f3 | 324 | |
b32d1675 LP |
325 | strv_free(r); |
326 | r = q; | |
ac7019f3 LP |
327 | } |
328 | ||
b32d1675 | 329 | fclose(f); |
ac7019f3 LP |
330 | } |
331 | ||
b32d1675 | 332 | strv_free(files); |
ac7019f3 | 333 | |
f6c13ce4 | 334 | return strv_uniq(r); |
ac7019f3 LP |
335 | } |
336 | ||
c5f0532f LP |
337 | static int read_ntp(DBusConnection *bus) { |
338 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
339 | DBusError error; |
340 | int r; | |
ac7019f3 | 341 | char **i, **l; |
c5f0532f LP |
342 | |
343 | assert(bus); | |
344 | ||
345 | dbus_error_init(&error); | |
346 | ||
ac7019f3 LP |
347 | l = get_ntp_services(); |
348 | STRV_FOREACH(i, l) { | |
349 | const char *s; | |
350 | ||
351 | if (m) | |
352 | dbus_message_unref(m); | |
353 | m = dbus_message_new_method_call( | |
354 | "org.freedesktop.systemd1", | |
355 | "/org/freedesktop/systemd1", | |
356 | "org.freedesktop.systemd1.Manager", | |
357 | "GetUnitFileState"); | |
358 | if (!m) { | |
0d0f0c50 | 359 | r = log_oom(); |
ac7019f3 LP |
360 | goto finish; |
361 | } | |
c5f0532f | 362 | |
ac7019f3 LP |
363 | if (!dbus_message_append_args(m, |
364 | DBUS_TYPE_STRING, i, | |
365 | DBUS_TYPE_INVALID)) { | |
0d0f0c50 | 366 | r = log_oom(); |
ac7019f3 LP |
367 | goto finish; |
368 | } | |
c5f0532f | 369 | |
ac7019f3 LP |
370 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); |
371 | if (!reply) { | |
372 | if (streq(error.name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
373 | /* This implementation does not exist, try next one */ | |
374 | dbus_error_free(&error); | |
375 | continue; | |
376 | } | |
2aa4c315 | 377 | |
ac7019f3 LP |
378 | log_error("Failed to issue method call: %s", bus_error_message(&error)); |
379 | r = -EIO; | |
2aa4c315 LP |
380 | goto finish; |
381 | } | |
382 | ||
ac7019f3 LP |
383 | if (!dbus_message_get_args(reply, &error, |
384 | DBUS_TYPE_STRING, &s, | |
385 | DBUS_TYPE_INVALID)) { | |
386 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
387 | r = -EIO; | |
388 | goto finish; | |
389 | } | |
c5f0532f | 390 | |
6ffe5e37 | 391 | tz.can_ntp = 1; |
ac7019f3 LP |
392 | tz.use_ntp = |
393 | streq(s, "enabled") || | |
394 | streq(s, "enabled-runtime"); | |
395 | r = 0; | |
c5f0532f LP |
396 | goto finish; |
397 | } | |
398 | ||
ac7019f3 | 399 | /* NTP is not installed. */ |
6ffe5e37 | 400 | tz.can_ntp = 0; |
ac7019f3 | 401 | tz.use_ntp = 0; |
c5f0532f LP |
402 | r = 0; |
403 | ||
404 | finish: | |
405 | if (m) | |
406 | dbus_message_unref(m); | |
407 | ||
408 | if (reply) | |
409 | dbus_message_unref(reply); | |
410 | ||
ac7019f3 LP |
411 | strv_free(l); |
412 | ||
c5f0532f LP |
413 | dbus_error_free(&error); |
414 | ||
415 | return r; | |
416 | } | |
417 | ||
418 | static int start_ntp(DBusConnection *bus, DBusError *error) { | |
419 | DBusMessage *m = NULL, *reply = NULL; | |
ac7019f3 LP |
420 | const char *mode = "replace"; |
421 | char **i, **l; | |
c5f0532f LP |
422 | int r; |
423 | ||
424 | assert(bus); | |
425 | assert(error); | |
426 | ||
ac7019f3 LP |
427 | l = get_ntp_services(); |
428 | STRV_FOREACH(i, l) { | |
429 | if (m) | |
430 | dbus_message_unref(m); | |
431 | m = dbus_message_new_method_call( | |
432 | "org.freedesktop.systemd1", | |
433 | "/org/freedesktop/systemd1", | |
434 | "org.freedesktop.systemd1.Manager", | |
435 | tz.use_ntp ? "StartUnit" : "StopUnit"); | |
436 | if (!m) { | |
437 | log_error("Could not allocate message."); | |
438 | r = -ENOMEM; | |
439 | goto finish; | |
440 | } | |
c5f0532f | 441 | |
ac7019f3 LP |
442 | if (!dbus_message_append_args(m, |
443 | DBUS_TYPE_STRING, i, | |
444 | DBUS_TYPE_STRING, &mode, | |
445 | DBUS_TYPE_INVALID)) { | |
446 | log_error("Could not append arguments to message."); | |
447 | r = -ENOMEM; | |
448 | goto finish; | |
449 | } | |
450 | ||
ac7019f3 LP |
451 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); |
452 | if (!reply) { | |
453 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound") || | |
454 | streq(error->name, "org.freedesktop.systemd1.LoadFailed") || | |
455 | streq(error->name, "org.freedesktop.systemd1.NoSuchUnit")) { | |
456 | /* This implementation does not exist, try next one */ | |
457 | dbus_error_free(error); | |
458 | continue; | |
459 | } | |
c5f0532f | 460 | |
ac7019f3 LP |
461 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
462 | r = -EIO; | |
463 | goto finish; | |
464 | } | |
465 | ||
466 | r = 0; | |
c5f0532f LP |
467 | goto finish; |
468 | } | |
469 | ||
ac7019f3 LP |
470 | /* No implementaiton available... */ |
471 | r = -ENOENT; | |
c5f0532f LP |
472 | |
473 | finish: | |
474 | if (m) | |
475 | dbus_message_unref(m); | |
476 | ||
477 | if (reply) | |
478 | dbus_message_unref(reply); | |
479 | ||
ac7019f3 LP |
480 | strv_free(l); |
481 | ||
c5f0532f LP |
482 | return r; |
483 | } | |
484 | ||
485 | static int enable_ntp(DBusConnection *bus, DBusError *error) { | |
486 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
487 | int r; |
488 | DBusMessageIter iter; | |
489 | dbus_bool_t f = FALSE, t = TRUE; | |
ac7019f3 | 490 | char **i, **l; |
c5f0532f LP |
491 | |
492 | assert(bus); | |
493 | assert(error); | |
494 | ||
ac7019f3 LP |
495 | l = get_ntp_services(); |
496 | STRV_FOREACH(i, l) { | |
497 | char* k[2]; | |
498 | ||
499 | if (m) | |
500 | dbus_message_unref(m); | |
501 | m = dbus_message_new_method_call( | |
502 | "org.freedesktop.systemd1", | |
503 | "/org/freedesktop/systemd1", | |
504 | "org.freedesktop.systemd1.Manager", | |
505 | tz.use_ntp ? "EnableUnitFiles" : "DisableUnitFiles"); | |
506 | if (!m) { | |
507 | log_error("Could not allocate message."); | |
508 | r = -ENOMEM; | |
509 | goto finish; | |
510 | } | |
c5f0532f | 511 | |
ac7019f3 | 512 | dbus_message_iter_init_append(m, &iter); |
c5f0532f | 513 | |
ac7019f3 LP |
514 | k[0] = *i; |
515 | k[1] = NULL; | |
c5f0532f | 516 | |
ac7019f3 LP |
517 | r = bus_append_strv_iter(&iter, k); |
518 | if (r < 0) { | |
519 | log_error("Failed to append unit files."); | |
520 | goto finish; | |
521 | } | |
c5f0532f | 522 | |
ac7019f3 LP |
523 | /* send runtime bool */ |
524 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &f)) { | |
525 | log_error("Failed to append runtime boolean."); | |
c5f0532f LP |
526 | r = -ENOMEM; |
527 | goto finish; | |
528 | } | |
c5f0532f | 529 | |
ac7019f3 LP |
530 | if (tz.use_ntp) { |
531 | /* send force bool */ | |
532 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &t)) { | |
533 | log_error("Failed to append force boolean."); | |
534 | r = -ENOMEM; | |
535 | goto finish; | |
536 | } | |
537 | } | |
c5f0532f | 538 | |
ac7019f3 LP |
539 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); |
540 | if (!reply) { | |
541 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
542 | /* This implementation does not exist, try next one */ | |
543 | dbus_error_free(error); | |
544 | continue; | |
545 | } | |
c5f0532f | 546 | |
ac7019f3 LP |
547 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
548 | r = -EIO; | |
549 | goto finish; | |
550 | } | |
551 | ||
552 | dbus_message_unref(m); | |
553 | m = dbus_message_new_method_call( | |
554 | "org.freedesktop.systemd1", | |
555 | "/org/freedesktop/systemd1", | |
556 | "org.freedesktop.systemd1.Manager", | |
557 | "Reload"); | |
558 | if (!m) { | |
559 | log_error("Could not allocate message."); | |
560 | r = -ENOMEM; | |
561 | goto finish; | |
562 | } | |
563 | ||
564 | dbus_message_unref(reply); | |
565 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
566 | if (!reply) { | |
567 | log_error("Failed to issue method call: %s", bus_error_message(error)); | |
568 | r = -EIO; | |
569 | goto finish; | |
570 | } | |
571 | ||
572 | r = 0; | |
c5f0532f LP |
573 | goto finish; |
574 | } | |
575 | ||
ac7019f3 | 576 | r = -ENOENT; |
c5f0532f LP |
577 | |
578 | finish: | |
579 | if (m) | |
580 | dbus_message_unref(m); | |
581 | ||
582 | if (reply) | |
583 | dbus_message_unref(reply); | |
584 | ||
ac7019f3 LP |
585 | strv_free(l); |
586 | ||
c5f0532f LP |
587 | return r; |
588 | } | |
589 | ||
6ffe5e37 RL |
590 | static int property_append_can_ntp(DBusMessageIter *i, const char *property, void *data) { |
591 | dbus_bool_t db; | |
592 | ||
593 | assert(i); | |
594 | assert(property); | |
595 | ||
596 | db = tz.can_ntp > 0; | |
597 | ||
598 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db)) | |
599 | return -ENOMEM; | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
c5f0532f LP |
604 | static int property_append_ntp(DBusMessageIter *i, const char *property, void *data) { |
605 | dbus_bool_t db; | |
606 | ||
607 | assert(i); | |
608 | assert(property); | |
609 | ||
d200735e | 610 | db = tz.use_ntp > 0; |
c5f0532f LP |
611 | |
612 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db)) | |
613 | return -ENOMEM; | |
614 | ||
615 | return 0; | |
616 | } | |
617 | ||
d200735e MS |
618 | static const BusProperty bus_timedate_properties[] = { |
619 | { "Timezone", bus_property_append_string, "s", offsetof(TZ, zone), true }, | |
620 | { "LocalRTC", bus_property_append_bool, "b", offsetof(TZ, local_rtc) }, | |
6ffe5e37 | 621 | { "CanNTP", property_append_can_ntp, "b", offsetof(TZ, can_ntp) }, |
d200735e MS |
622 | { "NTP", property_append_ntp, "b", offsetof(TZ, use_ntp) }, |
623 | { NULL, } | |
624 | }; | |
625 | ||
626 | static const BusBoundProperties bps[] = { | |
627 | { "org.freedesktop.timedate1", bus_timedate_properties, &tz }, | |
628 | { NULL, } | |
629 | }; | |
630 | ||
f401e48c LP |
631 | static DBusHandlerResult timedate_message_handler( |
632 | DBusConnection *connection, | |
633 | DBusMessage *message, | |
634 | void *userdata) { | |
635 | ||
f401e48c LP |
636 | DBusMessage *reply = NULL, *changed = NULL; |
637 | DBusError error; | |
638 | int r; | |
639 | ||
640 | assert(connection); | |
641 | assert(message); | |
642 | ||
643 | dbus_error_init(&error); | |
644 | ||
645 | if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTimezone")) { | |
646 | const char *z; | |
647 | dbus_bool_t interactive; | |
648 | ||
649 | if (!dbus_message_get_args( | |
650 | message, | |
651 | &error, | |
652 | DBUS_TYPE_STRING, &z, | |
653 | DBUS_TYPE_BOOLEAN, &interactive, | |
654 | DBUS_TYPE_INVALID)) | |
655 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
656 | ||
657 | if (!valid_timezone(z)) | |
658 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
659 | ||
d200735e | 660 | if (!streq_ptr(z, tz.zone)) { |
f401e48c LP |
661 | char *t; |
662 | ||
89f13440 | 663 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-timezone", interactive, NULL, &error); |
f401e48c LP |
664 | if (r < 0) |
665 | return bus_send_error_reply(connection, message, &error, r); | |
666 | ||
667 | t = strdup(z); | |
668 | if (!t) | |
669 | goto oom; | |
670 | ||
d200735e MS |
671 | free(tz.zone); |
672 | tz.zone = t; | |
f401e48c | 673 | |
2076cf88 | 674 | /* 1. Write new configuration file */ |
f401e48c LP |
675 | r = write_data_timezone(); |
676 | if (r < 0) { | |
677 | log_error("Failed to set timezone: %s", strerror(-r)); | |
678 | return bus_send_error_reply(connection, message, NULL, r); | |
679 | } | |
680 | ||
72edcff5 KS |
681 | /* 2. Tell the kernel our time zone */ |
682 | hwclock_set_timezone(NULL); | |
683 | ||
d200735e | 684 | if (tz.local_rtc) { |
2076cf88 LP |
685 | struct timespec ts; |
686 | struct tm *tm; | |
687 | ||
2076cf88 LP |
688 | /* 3. Sync RTC from system clock, with the new delta */ |
689 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
690 | assert_se(tm = localtime(&ts.tv_sec)); | |
691 | hwclock_set_time(tm); | |
692 | } | |
693 | ||
877d54e9 | 694 | log_struct(LOG_INFO, |
1ca6783f | 695 | MESSAGE_ID(SD_MESSAGE_TIMEZONE_CHANGE), |
877d54e9 LP |
696 | "TIMEZONE=%s", tz.zone, |
697 | "MESSAGE=Changed timezone to '%s'.", tz.zone, | |
698 | NULL); | |
f401e48c LP |
699 | |
700 | changed = bus_properties_changed_new( | |
701 | "/org/freedesktop/timedate1", | |
702 | "org.freedesktop.timedate1", | |
703 | "Timezone\0"); | |
704 | if (!changed) | |
705 | goto oom; | |
706 | } | |
707 | ||
708 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetLocalRTC")) { | |
709 | dbus_bool_t lrtc; | |
05a4abb9 | 710 | dbus_bool_t fix_system; |
f401e48c LP |
711 | dbus_bool_t interactive; |
712 | ||
713 | if (!dbus_message_get_args( | |
714 | message, | |
715 | &error, | |
716 | DBUS_TYPE_BOOLEAN, &lrtc, | |
05a4abb9 | 717 | DBUS_TYPE_BOOLEAN, &fix_system, |
f401e48c LP |
718 | DBUS_TYPE_BOOLEAN, &interactive, |
719 | DBUS_TYPE_INVALID)) | |
720 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
721 | ||
d200735e | 722 | if (lrtc != tz.local_rtc) { |
2076cf88 LP |
723 | struct timespec ts; |
724 | ||
89f13440 | 725 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-local-rtc", interactive, NULL, &error); |
f401e48c LP |
726 | if (r < 0) |
727 | return bus_send_error_reply(connection, message, &error, r); | |
728 | ||
d200735e | 729 | tz.local_rtc = lrtc; |
f401e48c | 730 | |
2076cf88 | 731 | /* 1. Write new configuration file */ |
f401e48c LP |
732 | r = write_data_local_rtc(); |
733 | if (r < 0) { | |
734 | log_error("Failed to set RTC to local/UTC: %s", strerror(-r)); | |
735 | return bus_send_error_reply(connection, message, NULL, r); | |
736 | } | |
737 | ||
72edcff5 KS |
738 | /* 2. Tell the kernel our time zone */ |
739 | hwclock_set_timezone(NULL); | |
2076cf88 LP |
740 | |
741 | /* 3. Synchronize clocks */ | |
742 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
743 | ||
05a4abb9 | 744 | if (fix_system) { |
2076cf88 LP |
745 | struct tm tm; |
746 | ||
747 | /* Sync system clock from RTC; first, | |
748 | * initialize the timezone fields of | |
749 | * struct tm. */ | |
d200735e | 750 | if (tz.local_rtc) |
2076cf88 LP |
751 | tm = *localtime(&ts.tv_sec); |
752 | else | |
753 | tm = *gmtime(&ts.tv_sec); | |
754 | ||
755 | /* Override the main fields of | |
756 | * struct tm, but not the timezone | |
757 | * fields */ | |
758 | if (hwclock_get_time(&tm) >= 0) { | |
759 | ||
760 | /* And set the system clock | |
761 | * with this */ | |
d200735e | 762 | if (tz.local_rtc) |
2076cf88 LP |
763 | ts.tv_sec = mktime(&tm); |
764 | else | |
765 | ts.tv_sec = timegm(&tm); | |
766 | ||
767 | clock_settime(CLOCK_REALTIME, &ts); | |
768 | } | |
769 | ||
770 | } else { | |
771 | struct tm *tm; | |
772 | ||
773 | /* Sync RTC from system clock */ | |
d200735e | 774 | if (tz.local_rtc) |
2076cf88 LP |
775 | tm = localtime(&ts.tv_sec); |
776 | else | |
777 | tm = gmtime(&ts.tv_sec); | |
778 | ||
779 | hwclock_set_time(tm); | |
780 | } | |
781 | ||
d200735e | 782 | log_info("RTC configured to %s time.", tz.local_rtc ? "local" : "UTC"); |
f401e48c LP |
783 | |
784 | changed = bus_properties_changed_new( | |
785 | "/org/freedesktop/timedate1", | |
786 | "org.freedesktop.timedate1", | |
787 | "LocalRTC\0"); | |
788 | if (!changed) | |
789 | goto oom; | |
790 | } | |
791 | ||
792 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTime")) { | |
793 | int64_t utc; | |
794 | dbus_bool_t relative; | |
795 | dbus_bool_t interactive; | |
796 | ||
797 | if (!dbus_message_get_args( | |
798 | message, | |
799 | &error, | |
800 | DBUS_TYPE_INT64, &utc, | |
801 | DBUS_TYPE_BOOLEAN, &relative, | |
802 | DBUS_TYPE_BOOLEAN, &interactive, | |
803 | DBUS_TYPE_INVALID)) | |
804 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
805 | ||
806 | if (!relative && utc <= 0) | |
807 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
808 | ||
809 | if (!relative || utc != 0) { | |
810 | struct timespec ts; | |
2076cf88 | 811 | struct tm* tm; |
f401e48c | 812 | |
86e7b6e3 LP |
813 | if (relative) { |
814 | usec_t n, x; | |
815 | ||
816 | n = now(CLOCK_REALTIME); | |
817 | x = n + utc; | |
818 | ||
819 | if ((utc > 0 && x < n) || | |
820 | (utc < 0 && x > n)) | |
821 | return bus_send_error_reply(connection, message, NULL, -EOVERFLOW); | |
822 | ||
823 | timespec_store(&ts, x); | |
824 | } else | |
825 | timespec_store(&ts, (usec_t) utc); | |
826 | ||
89f13440 | 827 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-time", interactive, NULL, &error); |
f401e48c LP |
828 | if (r < 0) |
829 | return bus_send_error_reply(connection, message, &error, r); | |
830 | ||
2076cf88 | 831 | /* Set system clock */ |
f401e48c LP |
832 | if (clock_settime(CLOCK_REALTIME, &ts) < 0) { |
833 | log_error("Failed to set local time: %m"); | |
834 | return bus_send_error_reply(connection, message, NULL, -errno); | |
835 | } | |
836 | ||
2076cf88 | 837 | /* Sync down to RTC */ |
d200735e | 838 | if (tz.local_rtc) |
2076cf88 LP |
839 | tm = localtime(&ts.tv_sec); |
840 | else | |
841 | tm = gmtime(&ts.tv_sec); | |
842 | ||
843 | hwclock_set_time(tm); | |
844 | ||
877d54e9 | 845 | log_struct(LOG_INFO, |
1ca6783f | 846 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), |
877d54e9 LP |
847 | "REALTIME=%llu", (unsigned long long) timespec_load(&ts), |
848 | "MESSAGE=Changed local time to %s", ctime(&ts.tv_sec), | |
849 | NULL); | |
f401e48c | 850 | } |
c5f0532f LP |
851 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetNTP")) { |
852 | dbus_bool_t ntp; | |
853 | dbus_bool_t interactive; | |
854 | ||
855 | if (!dbus_message_get_args( | |
856 | message, | |
857 | &error, | |
858 | DBUS_TYPE_BOOLEAN, &ntp, | |
859 | DBUS_TYPE_BOOLEAN, &interactive, | |
860 | DBUS_TYPE_INVALID)) | |
861 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
862 | ||
d200735e | 863 | if (ntp != !!tz.use_ntp) { |
c5f0532f | 864 | |
89f13440 | 865 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-ntp", interactive, NULL, &error); |
c5f0532f LP |
866 | if (r < 0) |
867 | return bus_send_error_reply(connection, message, &error, r); | |
868 | ||
d200735e | 869 | tz.use_ntp = !!ntp; |
c5f0532f LP |
870 | |
871 | r = enable_ntp(connection, &error); | |
872 | if (r < 0) | |
873 | return bus_send_error_reply(connection, message, &error, r); | |
874 | ||
875 | r = start_ntp(connection, &error); | |
876 | if (r < 0) | |
877 | return bus_send_error_reply(connection, message, &error, r); | |
878 | ||
d200735e | 879 | log_info("Set NTP to %s", tz.use_ntp ? "enabled" : "disabled"); |
c5f0532f LP |
880 | |
881 | changed = bus_properties_changed_new( | |
882 | "/org/freedesktop/timedate1", | |
883 | "org.freedesktop.timedate1", | |
884 | "NTP\0"); | |
885 | if (!changed) | |
886 | goto oom; | |
887 | } | |
f401e48c LP |
888 | |
889 | } else | |
d200735e | 890 | return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps); |
f401e48c LP |
891 | |
892 | if (!(reply = dbus_message_new_method_return(message))) | |
893 | goto oom; | |
894 | ||
c6a818c8 | 895 | if (!bus_maybe_send_reply(connection, message, reply)) |
f401e48c LP |
896 | goto oom; |
897 | ||
898 | dbus_message_unref(reply); | |
899 | reply = NULL; | |
900 | ||
901 | if (changed) { | |
902 | ||
903 | if (!dbus_connection_send(connection, changed, NULL)) | |
904 | goto oom; | |
905 | ||
906 | dbus_message_unref(changed); | |
907 | } | |
908 | ||
909 | return DBUS_HANDLER_RESULT_HANDLED; | |
910 | ||
911 | oom: | |
912 | if (reply) | |
913 | dbus_message_unref(reply); | |
914 | ||
915 | if (changed) | |
916 | dbus_message_unref(changed); | |
917 | ||
918 | dbus_error_free(&error); | |
919 | ||
920 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
921 | } | |
922 | ||
923 | static int connect_bus(DBusConnection **_bus) { | |
924 | static const DBusObjectPathVTable timedate_vtable = { | |
925 | .message_function = timedate_message_handler | |
926 | }; | |
927 | DBusError error; | |
928 | DBusConnection *bus = NULL; | |
929 | int r; | |
930 | ||
931 | assert(_bus); | |
932 | ||
933 | dbus_error_init(&error); | |
934 | ||
935 | bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error); | |
936 | if (!bus) { | |
a2e52832 | 937 | log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error)); |
f401e48c | 938 | r = -ECONNREFUSED; |
b779821b | 939 | goto fail2; |
f401e48c LP |
940 | } |
941 | ||
ad740100 LP |
942 | dbus_connection_set_exit_on_disconnect(bus, FALSE); |
943 | ||
944 | if (!dbus_connection_register_object_path(bus, "/org/freedesktop/timedate1", &timedate_vtable, NULL) || | |
945 | !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) { | |
0d0f0c50 | 946 | r = log_oom(); |
f401e48c LP |
947 | goto fail; |
948 | } | |
949 | ||
add10b5a LP |
950 | r = dbus_bus_request_name(bus, "org.freedesktop.timedate1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error); |
951 | if (dbus_error_is_set(&error)) { | |
952 | log_error("Failed to register name on bus: %s", bus_error_message(&error)); | |
953 | r = -EEXIST; | |
954 | goto fail; | |
955 | } | |
956 | ||
957 | if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { | |
958 | log_error("Failed to acquire name."); | |
f401e48c LP |
959 | r = -EEXIST; |
960 | goto fail; | |
961 | } | |
962 | ||
963 | if (_bus) | |
964 | *_bus = bus; | |
965 | ||
966 | return 0; | |
967 | ||
968 | fail: | |
969 | dbus_connection_close(bus); | |
970 | dbus_connection_unref(bus); | |
b779821b | 971 | fail2: |
f401e48c LP |
972 | dbus_error_free(&error); |
973 | ||
974 | return r; | |
975 | } | |
976 | ||
977 | int main(int argc, char *argv[]) { | |
978 | int r; | |
979 | DBusConnection *bus = NULL; | |
ad740100 | 980 | bool exiting = false; |
f401e48c LP |
981 | |
982 | log_set_target(LOG_TARGET_AUTO); | |
983 | log_parse_environment(); | |
984 | log_open(); | |
985 | ||
4c12626c LP |
986 | umask(0022); |
987 | ||
91f9dcaf LP |
988 | if (argc == 2 && streq(argv[1], "--introspect")) { |
989 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
990 | "<node>\n", stdout); | |
991 | fputs(timedate_interface, stdout); | |
992 | fputs("</node>\n", stdout); | |
993 | return 0; | |
994 | } | |
995 | ||
f401e48c LP |
996 | if (argc != 1) { |
997 | log_error("This program takes no arguments."); | |
998 | r = -EINVAL; | |
999 | goto finish; | |
1000 | } | |
1001 | ||
f401e48c LP |
1002 | r = read_data(); |
1003 | if (r < 0) { | |
1004 | log_error("Failed to read timezone data: %s", strerror(-r)); | |
1005 | goto finish; | |
1006 | } | |
1007 | ||
1008 | r = connect_bus(&bus); | |
1009 | if (r < 0) | |
1010 | goto finish; | |
1011 | ||
c5f0532f LP |
1012 | r = read_ntp(bus); |
1013 | if (r < 0) { | |
1014 | log_error("Failed to determine whether NTP is enabled: %s", strerror(-r)); | |
1015 | goto finish; | |
1016 | } | |
1017 | ||
ad740100 LP |
1018 | remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC; |
1019 | for (;;) { | |
1020 | ||
1021 | if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC))) | |
1022 | break; | |
1023 | ||
1024 | if (!exiting && remain_until < now(CLOCK_MONOTONIC)) { | |
1025 | exiting = true; | |
c68df239 | 1026 | bus_async_unregister_and_exit(bus, "org.freedesktop.timedated1"); |
ad740100 LP |
1027 | } |
1028 | } | |
f401e48c LP |
1029 | |
1030 | r = 0; | |
1031 | ||
1032 | finish: | |
1033 | free_data(); | |
1034 | ||
1035 | if (bus) { | |
1036 | dbus_connection_flush(bus); | |
1037 | dbus_connection_close(bus); | |
1038 | dbus_connection_unref(bus); | |
1039 | } | |
1040 | ||
1041 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1042 | } |