]>
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 | ||
28 | #include "util.h" | |
29 | #include "strv.h" | |
30 | #include "dbus-common.h" | |
31 | #include "polkit.h" | |
ad740100 | 32 | #include "def.h" |
bbc98d32 | 33 | #include "hwclock.h" |
f401e48c LP |
34 | |
35 | #define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n" | |
36 | #define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n" | |
37 | ||
91f9dcaf | 38 | #define INTERFACE \ |
f401e48c LP |
39 | " <interface name=\"org.freedesktop.timedate1\">\n" \ |
40 | " <property name=\"Timezone\" type=\"s\" access=\"read\"/>\n" \ | |
41 | " <property name=\"LocalRTC\" type=\"b\" access=\"read\"/>\n" \ | |
c5f0532f | 42 | " <property name=\"NTP\" type=\"b\" access=\"read\"/>\n" \ |
f401e48c LP |
43 | " <method name=\"SetTime\">\n" \ |
44 | " <arg name=\"usec_utc\" type=\"x\" direction=\"in\"/>\n" \ | |
45 | " <arg name=\"relative\" type=\"b\" direction=\"in\"/>\n" \ | |
46 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
47 | " </method>\n" \ | |
48 | " <method name=\"SetTimezone\">\n" \ | |
49 | " <arg name=\"timezone\" type=\"s\" direction=\"in\"/>\n" \ | |
50 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
51 | " </method>\n" \ | |
52 | " <method name=\"SetLocalRTC\">\n" \ | |
53 | " <arg name=\"local_rtc\" type=\"b\" direction=\"in\"/>\n" \ | |
91f9dcaf | 54 | " <arg name=\"fix_system\" type=\"b\" direction=\"in\"/>\n" \ |
f401e48c LP |
55 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ |
56 | " </method>\n" \ | |
c5f0532f LP |
57 | " <method name=\"SetNTP\">\n" \ |
58 | " <arg name=\"use_ntp\" type=\"b\" direction=\"in\"/>\n" \ | |
59 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
60 | " </method>\n" \ | |
91f9dcaf LP |
61 | " </interface>\n" |
62 | ||
63 | #define INTROSPECTION \ | |
64 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \ | |
65 | "<node>\n" \ | |
66 | INTERFACE \ | |
f401e48c LP |
67 | BUS_PROPERTIES_INTERFACE \ |
68 | BUS_INTROSPECTABLE_INTERFACE \ | |
69 | BUS_PEER_INTERFACE \ | |
70 | "</node>\n" | |
71 | ||
72 | #define INTERFACES_LIST \ | |
73 | BUS_GENERIC_INTERFACES_LIST \ | |
3417e2c3 | 74 | "org.freedesktop.timedate1\0" |
f401e48c | 75 | |
91f9dcaf LP |
76 | const char timedate_interface[] _introspect_("timedate1") = INTERFACE; |
77 | ||
d200735e MS |
78 | typedef struct TZ { |
79 | char *zone; | |
80 | bool local_rtc; | |
81 | int use_ntp; | |
82 | } TZ; | |
f401e48c | 83 | |
d200735e MS |
84 | static TZ tz = { |
85 | .use_ntp = -1, | |
86 | }; | |
87 | ||
88 | static usec_t remain_until; | |
ad740100 | 89 | |
f401e48c | 90 | static void free_data(void) { |
d200735e MS |
91 | free(tz.zone); |
92 | tz.zone = NULL; | |
f401e48c | 93 | |
d200735e | 94 | tz.local_rtc = false; |
f401e48c LP |
95 | } |
96 | ||
97 | static bool valid_timezone(const char *name) { | |
98 | const char *p; | |
99 | char *t; | |
100 | bool slash = false; | |
101 | int r; | |
102 | struct stat st; | |
103 | ||
104 | assert(name); | |
105 | ||
106 | if (*name == '/' || *name == 0) | |
107 | return false; | |
108 | ||
109 | for (p = name; *p; p++) { | |
110 | if (!(*p >= '0' && *p <= '9') && | |
111 | !(*p >= 'a' && *p <= 'z') && | |
112 | !(*p >= 'A' && *p <= 'Z') && | |
113 | !(*p == '-' || *p == '_' || *p == '+' || *p == '/')) | |
114 | return false; | |
115 | ||
116 | if (*p == '/') { | |
117 | ||
118 | if (slash) | |
119 | return false; | |
120 | ||
121 | slash = true; | |
122 | } else | |
123 | slash = false; | |
124 | } | |
125 | ||
126 | if (slash) | |
127 | return false; | |
128 | ||
129 | t = strappend("/usr/share/zoneinfo/", name); | |
130 | if (!t) | |
131 | return false; | |
132 | ||
133 | r = stat(t, &st); | |
134 | free(t); | |
135 | ||
136 | if (r < 0) | |
137 | return false; | |
138 | ||
139 | if (!S_ISREG(st.st_mode)) | |
140 | return false; | |
141 | ||
142 | return true; | |
143 | } | |
144 | ||
145 | static void verify_timezone(void) { | |
146 | char *p, *a = NULL, *b = NULL; | |
147 | size_t l, q; | |
148 | int j, k; | |
149 | ||
d200735e | 150 | if (!tz.zone) |
f401e48c LP |
151 | return; |
152 | ||
d200735e | 153 | p = strappend("/usr/share/zoneinfo/", tz.zone); |
f401e48c LP |
154 | if (!p) { |
155 | log_error("Out of memory"); | |
156 | return; | |
157 | } | |
158 | ||
159 | j = read_full_file("/etc/localtime", &a, &l); | |
160 | k = read_full_file(p, &b, &q); | |
161 | ||
162 | free(p); | |
163 | ||
164 | if (j < 0 || k < 0 || l != q || memcmp(a, b, l)) { | |
165 | log_warning("/etc/localtime and /etc/timezone out of sync."); | |
d200735e MS |
166 | free(tz.zone); |
167 | tz.zone = NULL; | |
f401e48c LP |
168 | } |
169 | ||
170 | free(a); | |
171 | free(b); | |
172 | } | |
173 | ||
174 | static int read_data(void) { | |
175 | int r; | |
f401e48c LP |
176 | |
177 | free_data(); | |
178 | ||
d200735e | 179 | r = read_one_line_file("/etc/timezone", &tz.zone); |
a724d2ed LP |
180 | if (r < 0) { |
181 | if (r != -ENOENT) | |
182 | log_warning("Failed to read /etc/timezone: %s", strerror(-r)); | |
183 | ||
184 | #ifdef TARGET_FEDORA | |
185 | r = parse_env_file("/etc/sysconfig/clock", NEWLINE, | |
d200735e | 186 | "ZONE", &tz.zone, |
a724d2ed LP |
187 | NULL); |
188 | ||
189 | if (r < 0 && r != -ENOENT) | |
190 | log_warning("Failed to read /etc/sysconfig/clock: %s", strerror(-r)); | |
191 | #endif | |
192 | } | |
193 | ||
d200735e MS |
194 | if (isempty(tz.zone)) { |
195 | free(tz.zone); | |
196 | tz.zone = NULL; | |
a724d2ed | 197 | } |
f401e48c LP |
198 | |
199 | verify_timezone(); | |
200 | ||
d200735e | 201 | tz.local_rtc = hwclock_is_localtime() > 0; |
f401e48c LP |
202 | |
203 | return 0; | |
204 | } | |
205 | ||
206 | static int write_data_timezone(void) { | |
207 | int r = 0; | |
208 | char *p; | |
209 | ||
d200735e | 210 | if (!tz.zone) { |
f401e48c LP |
211 | if (unlink("/etc/timezone") < 0 && errno != ENOENT) |
212 | r = -errno; | |
213 | ||
214 | if (unlink("/etc/localtime") < 0 && errno != ENOENT) | |
215 | r = -errno; | |
216 | ||
217 | return r; | |
218 | } | |
219 | ||
d200735e | 220 | p = strappend("/usr/share/zoneinfo/", tz.zone); |
f401e48c LP |
221 | if (!p) { |
222 | log_error("Out of memory"); | |
223 | return -ENOMEM; | |
224 | } | |
225 | ||
226 | r = symlink_or_copy_atomic(p, "/etc/localtime"); | |
227 | free(p); | |
228 | ||
229 | if (r < 0) | |
230 | return r; | |
231 | ||
d200735e | 232 | r = write_one_line_file_atomic("/etc/timezone", tz.zone); |
f401e48c LP |
233 | if (r < 0) |
234 | return r; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | static int write_data_local_rtc(void) { | |
240 | int r; | |
241 | char *s, *w; | |
242 | ||
243 | r = read_full_file("/etc/adjtime", &s, NULL); | |
244 | if (r < 0) { | |
245 | if (r != -ENOENT) | |
246 | return r; | |
247 | ||
d200735e | 248 | if (!tz.local_rtc) |
f401e48c LP |
249 | return 0; |
250 | ||
251 | w = strdup(NULL_ADJTIME_LOCAL); | |
252 | if (!w) | |
253 | return -ENOMEM; | |
254 | } else { | |
255 | char *p, *e; | |
256 | size_t a, b; | |
257 | ||
258 | p = strchr(s, '\n'); | |
259 | if (!p) { | |
260 | free(s); | |
261 | return -EIO; | |
262 | } | |
263 | ||
264 | p = strchr(p+1, '\n'); | |
265 | if (!p) { | |
266 | free(s); | |
267 | return -EIO; | |
268 | } | |
269 | ||
270 | p++; | |
271 | e = strchr(p, '\n'); | |
8ea913b2 | 272 | if (!e) { |
f401e48c LP |
273 | free(s); |
274 | return -EIO; | |
275 | } | |
276 | ||
277 | a = p - s; | |
278 | b = strlen(e); | |
279 | ||
d200735e | 280 | w = new(char, a + (tz.local_rtc ? 5 : 3) + b + 1); |
f401e48c LP |
281 | if (!w) { |
282 | free(s); | |
283 | return -ENOMEM; | |
284 | } | |
285 | ||
d200735e | 286 | *(char*) mempcpy(stpcpy(mempcpy(w, s, a), tz.local_rtc ? "LOCAL" : "UTC"), e, b) = 0; |
f401e48c LP |
287 | |
288 | if (streq(w, NULL_ADJTIME_UTC)) { | |
289 | free(w); | |
290 | ||
291 | if (unlink("/etc/adjtime") < 0) { | |
292 | if (errno != ENOENT) | |
293 | return -errno; | |
294 | } | |
295 | ||
296 | return 0; | |
297 | } | |
298 | } | |
299 | ||
300 | r = write_one_line_file_atomic("/etc/adjtime", w); | |
301 | free(w); | |
302 | ||
303 | return r; | |
304 | } | |
305 | ||
ac7019f3 LP |
306 | static char** get_ntp_services(void) { |
307 | char **r = NULL; | |
308 | FILE *f; | |
309 | ||
310 | f = fopen(SYSTEMD_NTP_UNITS, "re"); | |
311 | if (!f) | |
312 | return NULL; | |
313 | ||
314 | for (;;) { | |
315 | char line[PATH_MAX], *l, **q; | |
316 | ||
317 | if (!fgets(line, sizeof(line), f)) { | |
318 | ||
319 | if (ferror(f)) | |
320 | log_error("Failed to read NTP units file: %m"); | |
321 | ||
322 | break; | |
323 | } | |
324 | ||
325 | l = strstrip(line); | |
326 | if (l[0] == 0 || l[0] == '#') | |
327 | continue; | |
328 | ||
329 | ||
330 | q = strv_append(r, l); | |
331 | if (!q) { | |
332 | log_error("Out of memory"); | |
333 | break; | |
334 | } | |
335 | ||
336 | strv_free(r); | |
337 | r = q; | |
338 | } | |
339 | ||
340 | fclose(f); | |
341 | ||
342 | return r; | |
343 | } | |
344 | ||
c5f0532f LP |
345 | static int read_ntp(DBusConnection *bus) { |
346 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
347 | DBusError error; |
348 | int r; | |
ac7019f3 | 349 | char **i, **l; |
c5f0532f LP |
350 | |
351 | assert(bus); | |
352 | ||
353 | dbus_error_init(&error); | |
354 | ||
ac7019f3 LP |
355 | l = get_ntp_services(); |
356 | STRV_FOREACH(i, l) { | |
357 | const char *s; | |
358 | ||
359 | if (m) | |
360 | dbus_message_unref(m); | |
361 | m = dbus_message_new_method_call( | |
362 | "org.freedesktop.systemd1", | |
363 | "/org/freedesktop/systemd1", | |
364 | "org.freedesktop.systemd1.Manager", | |
365 | "GetUnitFileState"); | |
366 | if (!m) { | |
367 | log_error("Out of memory"); | |
368 | r = -ENOMEM; | |
369 | goto finish; | |
370 | } | |
c5f0532f | 371 | |
ac7019f3 LP |
372 | if (!dbus_message_append_args(m, |
373 | DBUS_TYPE_STRING, i, | |
374 | DBUS_TYPE_INVALID)) { | |
375 | log_error("Could not append arguments to message."); | |
376 | r = -ENOMEM; | |
377 | goto finish; | |
378 | } | |
c5f0532f | 379 | |
ac7019f3 LP |
380 | if (reply) |
381 | dbus_message_unref(reply); | |
382 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
383 | if (!reply) { | |
384 | if (streq(error.name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
385 | /* This implementation does not exist, try next one */ | |
386 | dbus_error_free(&error); | |
387 | continue; | |
388 | } | |
2aa4c315 | 389 | |
ac7019f3 LP |
390 | log_error("Failed to issue method call: %s", bus_error_message(&error)); |
391 | r = -EIO; | |
2aa4c315 LP |
392 | goto finish; |
393 | } | |
394 | ||
ac7019f3 LP |
395 | if (!dbus_message_get_args(reply, &error, |
396 | DBUS_TYPE_STRING, &s, | |
397 | DBUS_TYPE_INVALID)) { | |
398 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
399 | r = -EIO; | |
400 | goto finish; | |
401 | } | |
c5f0532f | 402 | |
ac7019f3 LP |
403 | tz.use_ntp = |
404 | streq(s, "enabled") || | |
405 | streq(s, "enabled-runtime"); | |
406 | r = 0; | |
c5f0532f LP |
407 | goto finish; |
408 | } | |
409 | ||
ac7019f3 LP |
410 | /* NTP is not installed. */ |
411 | tz.use_ntp = 0; | |
c5f0532f LP |
412 | r = 0; |
413 | ||
414 | finish: | |
415 | if (m) | |
416 | dbus_message_unref(m); | |
417 | ||
418 | if (reply) | |
419 | dbus_message_unref(reply); | |
420 | ||
ac7019f3 LP |
421 | strv_free(l); |
422 | ||
c5f0532f LP |
423 | dbus_error_free(&error); |
424 | ||
425 | return r; | |
426 | } | |
427 | ||
428 | static int start_ntp(DBusConnection *bus, DBusError *error) { | |
429 | DBusMessage *m = NULL, *reply = NULL; | |
ac7019f3 LP |
430 | const char *mode = "replace"; |
431 | char **i, **l; | |
c5f0532f LP |
432 | int r; |
433 | ||
434 | assert(bus); | |
435 | assert(error); | |
436 | ||
ac7019f3 LP |
437 | l = get_ntp_services(); |
438 | STRV_FOREACH(i, l) { | |
439 | if (m) | |
440 | dbus_message_unref(m); | |
441 | m = dbus_message_new_method_call( | |
442 | "org.freedesktop.systemd1", | |
443 | "/org/freedesktop/systemd1", | |
444 | "org.freedesktop.systemd1.Manager", | |
445 | tz.use_ntp ? "StartUnit" : "StopUnit"); | |
446 | if (!m) { | |
447 | log_error("Could not allocate message."); | |
448 | r = -ENOMEM; | |
449 | goto finish; | |
450 | } | |
c5f0532f | 451 | |
ac7019f3 LP |
452 | if (!dbus_message_append_args(m, |
453 | DBUS_TYPE_STRING, i, | |
454 | DBUS_TYPE_STRING, &mode, | |
455 | DBUS_TYPE_INVALID)) { | |
456 | log_error("Could not append arguments to message."); | |
457 | r = -ENOMEM; | |
458 | goto finish; | |
459 | } | |
460 | ||
461 | if (reply) | |
462 | dbus_message_unref(reply); | |
463 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
464 | if (!reply) { | |
465 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound") || | |
466 | streq(error->name, "org.freedesktop.systemd1.LoadFailed") || | |
467 | streq(error->name, "org.freedesktop.systemd1.NoSuchUnit")) { | |
468 | /* This implementation does not exist, try next one */ | |
469 | dbus_error_free(error); | |
470 | continue; | |
471 | } | |
c5f0532f | 472 | |
ac7019f3 LP |
473 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
474 | r = -EIO; | |
475 | goto finish; | |
476 | } | |
477 | ||
478 | r = 0; | |
c5f0532f LP |
479 | goto finish; |
480 | } | |
481 | ||
ac7019f3 LP |
482 | /* No implementaiton available... */ |
483 | r = -ENOENT; | |
c5f0532f LP |
484 | |
485 | finish: | |
486 | if (m) | |
487 | dbus_message_unref(m); | |
488 | ||
489 | if (reply) | |
490 | dbus_message_unref(reply); | |
491 | ||
ac7019f3 LP |
492 | strv_free(l); |
493 | ||
c5f0532f LP |
494 | return r; |
495 | } | |
496 | ||
497 | static int enable_ntp(DBusConnection *bus, DBusError *error) { | |
498 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
499 | int r; |
500 | DBusMessageIter iter; | |
501 | dbus_bool_t f = FALSE, t = TRUE; | |
ac7019f3 | 502 | char **i, **l; |
c5f0532f LP |
503 | |
504 | assert(bus); | |
505 | assert(error); | |
506 | ||
ac7019f3 LP |
507 | l = get_ntp_services(); |
508 | STRV_FOREACH(i, l) { | |
509 | char* k[2]; | |
510 | ||
511 | if (m) | |
512 | dbus_message_unref(m); | |
513 | m = dbus_message_new_method_call( | |
514 | "org.freedesktop.systemd1", | |
515 | "/org/freedesktop/systemd1", | |
516 | "org.freedesktop.systemd1.Manager", | |
517 | tz.use_ntp ? "EnableUnitFiles" : "DisableUnitFiles"); | |
518 | if (!m) { | |
519 | log_error("Could not allocate message."); | |
520 | r = -ENOMEM; | |
521 | goto finish; | |
522 | } | |
c5f0532f | 523 | |
ac7019f3 | 524 | dbus_message_iter_init_append(m, &iter); |
c5f0532f | 525 | |
ac7019f3 LP |
526 | k[0] = *i; |
527 | k[1] = NULL; | |
c5f0532f | 528 | |
ac7019f3 LP |
529 | r = bus_append_strv_iter(&iter, k); |
530 | if (r < 0) { | |
531 | log_error("Failed to append unit files."); | |
532 | goto finish; | |
533 | } | |
c5f0532f | 534 | |
ac7019f3 LP |
535 | /* send runtime bool */ |
536 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &f)) { | |
537 | log_error("Failed to append runtime boolean."); | |
c5f0532f LP |
538 | r = -ENOMEM; |
539 | goto finish; | |
540 | } | |
c5f0532f | 541 | |
ac7019f3 LP |
542 | if (tz.use_ntp) { |
543 | /* send force bool */ | |
544 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &t)) { | |
545 | log_error("Failed to append force boolean."); | |
546 | r = -ENOMEM; | |
547 | goto finish; | |
548 | } | |
549 | } | |
c5f0532f | 550 | |
ac7019f3 LP |
551 | if (reply) |
552 | dbus_message_unref(reply); | |
553 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
554 | if (!reply) { | |
555 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
556 | /* This implementation does not exist, try next one */ | |
557 | dbus_error_free(error); | |
558 | continue; | |
559 | } | |
c5f0532f | 560 | |
ac7019f3 LP |
561 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
562 | r = -EIO; | |
563 | goto finish; | |
564 | } | |
565 | ||
566 | dbus_message_unref(m); | |
567 | m = dbus_message_new_method_call( | |
568 | "org.freedesktop.systemd1", | |
569 | "/org/freedesktop/systemd1", | |
570 | "org.freedesktop.systemd1.Manager", | |
571 | "Reload"); | |
572 | if (!m) { | |
573 | log_error("Could not allocate message."); | |
574 | r = -ENOMEM; | |
575 | goto finish; | |
576 | } | |
577 | ||
578 | dbus_message_unref(reply); | |
579 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
580 | if (!reply) { | |
581 | log_error("Failed to issue method call: %s", bus_error_message(error)); | |
582 | r = -EIO; | |
583 | goto finish; | |
584 | } | |
585 | ||
586 | r = 0; | |
c5f0532f LP |
587 | goto finish; |
588 | } | |
589 | ||
ac7019f3 | 590 | r = -ENOENT; |
c5f0532f LP |
591 | |
592 | finish: | |
593 | if (m) | |
594 | dbus_message_unref(m); | |
595 | ||
596 | if (reply) | |
597 | dbus_message_unref(reply); | |
598 | ||
ac7019f3 LP |
599 | strv_free(l); |
600 | ||
c5f0532f LP |
601 | return r; |
602 | } | |
603 | ||
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) }, | |
621 | { "NTP", property_append_ntp, "b", offsetof(TZ, use_ntp) }, | |
622 | { NULL, } | |
623 | }; | |
624 | ||
625 | static const BusBoundProperties bps[] = { | |
626 | { "org.freedesktop.timedate1", bus_timedate_properties, &tz }, | |
627 | { NULL, } | |
628 | }; | |
629 | ||
f401e48c LP |
630 | static DBusHandlerResult timedate_message_handler( |
631 | DBusConnection *connection, | |
632 | DBusMessage *message, | |
633 | void *userdata) { | |
634 | ||
f401e48c LP |
635 | DBusMessage *reply = NULL, *changed = NULL; |
636 | DBusError error; | |
637 | int r; | |
638 | ||
639 | assert(connection); | |
640 | assert(message); | |
641 | ||
642 | dbus_error_init(&error); | |
643 | ||
644 | if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTimezone")) { | |
645 | const char *z; | |
646 | dbus_bool_t interactive; | |
647 | ||
648 | if (!dbus_message_get_args( | |
649 | message, | |
650 | &error, | |
651 | DBUS_TYPE_STRING, &z, | |
652 | DBUS_TYPE_BOOLEAN, &interactive, | |
653 | DBUS_TYPE_INVALID)) | |
654 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
655 | ||
656 | if (!valid_timezone(z)) | |
657 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
658 | ||
d200735e | 659 | if (!streq_ptr(z, tz.zone)) { |
f401e48c LP |
660 | char *t; |
661 | ||
89f13440 | 662 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-timezone", interactive, NULL, &error); |
f401e48c LP |
663 | if (r < 0) |
664 | return bus_send_error_reply(connection, message, &error, r); | |
665 | ||
666 | t = strdup(z); | |
667 | if (!t) | |
668 | goto oom; | |
669 | ||
d200735e MS |
670 | free(tz.zone); |
671 | tz.zone = t; | |
f401e48c | 672 | |
2076cf88 | 673 | /* 1. Write new configuration file */ |
f401e48c LP |
674 | r = write_data_timezone(); |
675 | if (r < 0) { | |
676 | log_error("Failed to set timezone: %s", strerror(-r)); | |
677 | return bus_send_error_reply(connection, message, NULL, r); | |
678 | } | |
679 | ||
d200735e | 680 | if (tz.local_rtc) { |
2076cf88 LP |
681 | struct timespec ts; |
682 | struct tm *tm; | |
683 | ||
684 | /* 2. Teach kernel new timezone */ | |
ff4daf5a | 685 | hwclock_apply_localtime_delta(NULL); |
2076cf88 LP |
686 | |
687 | /* 3. Sync RTC from system clock, with the new delta */ | |
688 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
689 | assert_se(tm = localtime(&ts.tv_sec)); | |
690 | hwclock_set_time(tm); | |
691 | } | |
692 | ||
d200735e | 693 | log_info("Changed timezone to '%s'.", tz.zone); |
f401e48c LP |
694 | |
695 | changed = bus_properties_changed_new( | |
696 | "/org/freedesktop/timedate1", | |
697 | "org.freedesktop.timedate1", | |
698 | "Timezone\0"); | |
699 | if (!changed) | |
700 | goto oom; | |
701 | } | |
702 | ||
703 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetLocalRTC")) { | |
704 | dbus_bool_t lrtc; | |
05a4abb9 | 705 | dbus_bool_t fix_system; |
f401e48c LP |
706 | dbus_bool_t interactive; |
707 | ||
708 | if (!dbus_message_get_args( | |
709 | message, | |
710 | &error, | |
711 | DBUS_TYPE_BOOLEAN, &lrtc, | |
05a4abb9 | 712 | DBUS_TYPE_BOOLEAN, &fix_system, |
f401e48c LP |
713 | DBUS_TYPE_BOOLEAN, &interactive, |
714 | DBUS_TYPE_INVALID)) | |
715 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
716 | ||
d200735e | 717 | if (lrtc != tz.local_rtc) { |
2076cf88 LP |
718 | struct timespec ts; |
719 | ||
89f13440 | 720 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-local-rtc", interactive, NULL, &error); |
f401e48c LP |
721 | if (r < 0) |
722 | return bus_send_error_reply(connection, message, &error, r); | |
723 | ||
d200735e | 724 | tz.local_rtc = lrtc; |
f401e48c | 725 | |
2076cf88 | 726 | /* 1. Write new configuration file */ |
f401e48c LP |
727 | r = write_data_local_rtc(); |
728 | if (r < 0) { | |
729 | log_error("Failed to set RTC to local/UTC: %s", strerror(-r)); | |
730 | return bus_send_error_reply(connection, message, NULL, r); | |
731 | } | |
732 | ||
2076cf88 | 733 | /* 2. Teach kernel new timezone */ |
d200735e | 734 | if (tz.local_rtc) |
ff4daf5a | 735 | hwclock_apply_localtime_delta(NULL); |
2076cf88 LP |
736 | else |
737 | hwclock_reset_localtime_delta(); | |
738 | ||
739 | /* 3. Synchronize clocks */ | |
740 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
741 | ||
05a4abb9 | 742 | if (fix_system) { |
2076cf88 LP |
743 | struct tm tm; |
744 | ||
745 | /* Sync system clock from RTC; first, | |
746 | * initialize the timezone fields of | |
747 | * struct tm. */ | |
d200735e | 748 | if (tz.local_rtc) |
2076cf88 LP |
749 | tm = *localtime(&ts.tv_sec); |
750 | else | |
751 | tm = *gmtime(&ts.tv_sec); | |
752 | ||
753 | /* Override the main fields of | |
754 | * struct tm, but not the timezone | |
755 | * fields */ | |
756 | if (hwclock_get_time(&tm) >= 0) { | |
757 | ||
758 | /* And set the system clock | |
759 | * with this */ | |
d200735e | 760 | if (tz.local_rtc) |
2076cf88 LP |
761 | ts.tv_sec = mktime(&tm); |
762 | else | |
763 | ts.tv_sec = timegm(&tm); | |
764 | ||
765 | clock_settime(CLOCK_REALTIME, &ts); | |
766 | } | |
767 | ||
768 | } else { | |
769 | struct tm *tm; | |
770 | ||
771 | /* Sync RTC from system clock */ | |
d200735e | 772 | if (tz.local_rtc) |
2076cf88 LP |
773 | tm = localtime(&ts.tv_sec); |
774 | else | |
775 | tm = gmtime(&ts.tv_sec); | |
776 | ||
777 | hwclock_set_time(tm); | |
778 | } | |
779 | ||
d200735e | 780 | log_info("RTC configured to %s time.", tz.local_rtc ? "local" : "UTC"); |
f401e48c LP |
781 | |
782 | changed = bus_properties_changed_new( | |
783 | "/org/freedesktop/timedate1", | |
784 | "org.freedesktop.timedate1", | |
785 | "LocalRTC\0"); | |
786 | if (!changed) | |
787 | goto oom; | |
788 | } | |
789 | ||
790 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTime")) { | |
791 | int64_t utc; | |
792 | dbus_bool_t relative; | |
793 | dbus_bool_t interactive; | |
794 | ||
795 | if (!dbus_message_get_args( | |
796 | message, | |
797 | &error, | |
798 | DBUS_TYPE_INT64, &utc, | |
799 | DBUS_TYPE_BOOLEAN, &relative, | |
800 | DBUS_TYPE_BOOLEAN, &interactive, | |
801 | DBUS_TYPE_INVALID)) | |
802 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
803 | ||
804 | if (!relative && utc <= 0) | |
805 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
806 | ||
807 | if (!relative || utc != 0) { | |
808 | struct timespec ts; | |
2076cf88 | 809 | struct tm* tm; |
f401e48c | 810 | |
89f13440 | 811 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-time", interactive, NULL, &error); |
f401e48c LP |
812 | if (r < 0) |
813 | return bus_send_error_reply(connection, message, &error, r); | |
814 | ||
815 | if (relative) | |
816 | timespec_store(&ts, now(CLOCK_REALTIME) + utc); | |
817 | else | |
818 | timespec_store(&ts, utc); | |
819 | ||
2076cf88 | 820 | /* Set system clock */ |
f401e48c LP |
821 | if (clock_settime(CLOCK_REALTIME, &ts) < 0) { |
822 | log_error("Failed to set local time: %m"); | |
823 | return bus_send_error_reply(connection, message, NULL, -errno); | |
824 | } | |
825 | ||
2076cf88 | 826 | /* Sync down to RTC */ |
d200735e | 827 | if (tz.local_rtc) |
2076cf88 LP |
828 | tm = localtime(&ts.tv_sec); |
829 | else | |
830 | tm = gmtime(&ts.tv_sec); | |
831 | ||
832 | hwclock_set_time(tm); | |
833 | ||
f401e48c LP |
834 | log_info("Changed local time to %s", ctime(&ts.tv_sec)); |
835 | } | |
c5f0532f LP |
836 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetNTP")) { |
837 | dbus_bool_t ntp; | |
838 | dbus_bool_t interactive; | |
839 | ||
840 | if (!dbus_message_get_args( | |
841 | message, | |
842 | &error, | |
843 | DBUS_TYPE_BOOLEAN, &ntp, | |
844 | DBUS_TYPE_BOOLEAN, &interactive, | |
845 | DBUS_TYPE_INVALID)) | |
846 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
847 | ||
d200735e | 848 | if (ntp != !!tz.use_ntp) { |
c5f0532f | 849 | |
89f13440 | 850 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-ntp", interactive, NULL, &error); |
c5f0532f LP |
851 | if (r < 0) |
852 | return bus_send_error_reply(connection, message, &error, r); | |
853 | ||
d200735e | 854 | tz.use_ntp = !!ntp; |
c5f0532f LP |
855 | |
856 | r = enable_ntp(connection, &error); | |
857 | if (r < 0) | |
858 | return bus_send_error_reply(connection, message, &error, r); | |
859 | ||
860 | r = start_ntp(connection, &error); | |
861 | if (r < 0) | |
862 | return bus_send_error_reply(connection, message, &error, r); | |
863 | ||
d200735e | 864 | log_info("Set NTP to %s", tz.use_ntp ? "enabled" : "disabled"); |
c5f0532f LP |
865 | |
866 | changed = bus_properties_changed_new( | |
867 | "/org/freedesktop/timedate1", | |
868 | "org.freedesktop.timedate1", | |
869 | "NTP\0"); | |
870 | if (!changed) | |
871 | goto oom; | |
872 | } | |
f401e48c LP |
873 | |
874 | } else | |
d200735e | 875 | return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps); |
f401e48c LP |
876 | |
877 | if (!(reply = dbus_message_new_method_return(message))) | |
878 | goto oom; | |
879 | ||
880 | if (!dbus_connection_send(connection, reply, NULL)) | |
881 | goto oom; | |
882 | ||
883 | dbus_message_unref(reply); | |
884 | reply = NULL; | |
885 | ||
886 | if (changed) { | |
887 | ||
888 | if (!dbus_connection_send(connection, changed, NULL)) | |
889 | goto oom; | |
890 | ||
891 | dbus_message_unref(changed); | |
892 | } | |
893 | ||
894 | return DBUS_HANDLER_RESULT_HANDLED; | |
895 | ||
896 | oom: | |
897 | if (reply) | |
898 | dbus_message_unref(reply); | |
899 | ||
900 | if (changed) | |
901 | dbus_message_unref(changed); | |
902 | ||
903 | dbus_error_free(&error); | |
904 | ||
905 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
906 | } | |
907 | ||
908 | static int connect_bus(DBusConnection **_bus) { | |
909 | static const DBusObjectPathVTable timedate_vtable = { | |
910 | .message_function = timedate_message_handler | |
911 | }; | |
912 | DBusError error; | |
913 | DBusConnection *bus = NULL; | |
914 | int r; | |
915 | ||
916 | assert(_bus); | |
917 | ||
918 | dbus_error_init(&error); | |
919 | ||
920 | bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error); | |
921 | if (!bus) { | |
a2e52832 | 922 | log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error)); |
f401e48c LP |
923 | r = -ECONNREFUSED; |
924 | goto fail; | |
925 | } | |
926 | ||
ad740100 LP |
927 | dbus_connection_set_exit_on_disconnect(bus, FALSE); |
928 | ||
929 | if (!dbus_connection_register_object_path(bus, "/org/freedesktop/timedate1", &timedate_vtable, NULL) || | |
930 | !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) { | |
f401e48c LP |
931 | log_error("Not enough memory"); |
932 | r = -ENOMEM; | |
933 | goto fail; | |
934 | } | |
935 | ||
add10b5a LP |
936 | r = dbus_bus_request_name(bus, "org.freedesktop.timedate1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error); |
937 | if (dbus_error_is_set(&error)) { | |
938 | log_error("Failed to register name on bus: %s", bus_error_message(&error)); | |
939 | r = -EEXIST; | |
940 | goto fail; | |
941 | } | |
942 | ||
943 | if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { | |
944 | log_error("Failed to acquire name."); | |
f401e48c LP |
945 | r = -EEXIST; |
946 | goto fail; | |
947 | } | |
948 | ||
949 | if (_bus) | |
950 | *_bus = bus; | |
951 | ||
952 | return 0; | |
953 | ||
954 | fail: | |
955 | dbus_connection_close(bus); | |
956 | dbus_connection_unref(bus); | |
957 | ||
958 | dbus_error_free(&error); | |
959 | ||
960 | return r; | |
961 | } | |
962 | ||
963 | int main(int argc, char *argv[]) { | |
964 | int r; | |
965 | DBusConnection *bus = NULL; | |
ad740100 | 966 | bool exiting = false; |
f401e48c LP |
967 | |
968 | log_set_target(LOG_TARGET_AUTO); | |
969 | log_parse_environment(); | |
970 | log_open(); | |
971 | ||
4c12626c LP |
972 | umask(0022); |
973 | ||
91f9dcaf LP |
974 | if (argc == 2 && streq(argv[1], "--introspect")) { |
975 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
976 | "<node>\n", stdout); | |
977 | fputs(timedate_interface, stdout); | |
978 | fputs("</node>\n", stdout); | |
979 | return 0; | |
980 | } | |
981 | ||
f401e48c LP |
982 | if (argc != 1) { |
983 | log_error("This program takes no arguments."); | |
984 | r = -EINVAL; | |
985 | goto finish; | |
986 | } | |
987 | ||
f401e48c LP |
988 | r = read_data(); |
989 | if (r < 0) { | |
990 | log_error("Failed to read timezone data: %s", strerror(-r)); | |
991 | goto finish; | |
992 | } | |
993 | ||
994 | r = connect_bus(&bus); | |
995 | if (r < 0) | |
996 | goto finish; | |
997 | ||
c5f0532f LP |
998 | r = read_ntp(bus); |
999 | if (r < 0) { | |
1000 | log_error("Failed to determine whether NTP is enabled: %s", strerror(-r)); | |
1001 | goto finish; | |
1002 | } | |
1003 | ||
ad740100 LP |
1004 | remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC; |
1005 | for (;;) { | |
1006 | ||
1007 | if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC))) | |
1008 | break; | |
1009 | ||
1010 | if (!exiting && remain_until < now(CLOCK_MONOTONIC)) { | |
1011 | exiting = true; | |
1012 | bus_async_unregister_and_exit(bus, "org.freedesktop.hostname1"); | |
1013 | } | |
1014 | } | |
f401e48c LP |
1015 | |
1016 | r = 0; | |
1017 | ||
1018 | finish: | |
1019 | free_data(); | |
1020 | ||
1021 | if (bus) { | |
1022 | dbus_connection_flush(bus); | |
1023 | dbus_connection_close(bus); | |
1024 | dbus_connection_unref(bus); | |
1025 | } | |
1026 | ||
1027 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1028 | } |