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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" |
f401e48c LP |
37 | |
38 | #define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n" | |
39 | #define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n" | |
40 | ||
91f9dcaf | 41 | #define INTERFACE \ |
f401e48c LP |
42 | " <interface name=\"org.freedesktop.timedate1\">\n" \ |
43 | " <property name=\"Timezone\" type=\"s\" access=\"read\"/>\n" \ | |
44 | " <property name=\"LocalRTC\" type=\"b\" access=\"read\"/>\n" \ | |
c5f0532f | 45 | " <property name=\"NTP\" type=\"b\" access=\"read\"/>\n" \ |
f401e48c LP |
46 | " <method name=\"SetTime\">\n" \ |
47 | " <arg name=\"usec_utc\" type=\"x\" direction=\"in\"/>\n" \ | |
48 | " <arg name=\"relative\" type=\"b\" direction=\"in\"/>\n" \ | |
49 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
50 | " </method>\n" \ | |
51 | " <method name=\"SetTimezone\">\n" \ | |
52 | " <arg name=\"timezone\" type=\"s\" direction=\"in\"/>\n" \ | |
53 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
54 | " </method>\n" \ | |
55 | " <method name=\"SetLocalRTC\">\n" \ | |
56 | " <arg name=\"local_rtc\" type=\"b\" direction=\"in\"/>\n" \ | |
91f9dcaf | 57 | " <arg name=\"fix_system\" type=\"b\" direction=\"in\"/>\n" \ |
f401e48c LP |
58 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ |
59 | " </method>\n" \ | |
c5f0532f LP |
60 | " <method name=\"SetNTP\">\n" \ |
61 | " <arg name=\"use_ntp\" type=\"b\" direction=\"in\"/>\n" \ | |
62 | " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \ | |
63 | " </method>\n" \ | |
91f9dcaf LP |
64 | " </interface>\n" |
65 | ||
66 | #define INTROSPECTION \ | |
67 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \ | |
68 | "<node>\n" \ | |
69 | INTERFACE \ | |
f401e48c LP |
70 | BUS_PROPERTIES_INTERFACE \ |
71 | BUS_INTROSPECTABLE_INTERFACE \ | |
72 | BUS_PEER_INTERFACE \ | |
73 | "</node>\n" | |
74 | ||
75 | #define INTERFACES_LIST \ | |
76 | BUS_GENERIC_INTERFACES_LIST \ | |
3417e2c3 | 77 | "org.freedesktop.timedate1\0" |
f401e48c | 78 | |
91f9dcaf LP |
79 | const char timedate_interface[] _introspect_("timedate1") = INTERFACE; |
80 | ||
d200735e MS |
81 | typedef struct TZ { |
82 | char *zone; | |
83 | bool local_rtc; | |
84 | int use_ntp; | |
85 | } TZ; | |
f401e48c | 86 | |
d200735e MS |
87 | static TZ tz = { |
88 | .use_ntp = -1, | |
89 | }; | |
90 | ||
91 | static usec_t remain_until; | |
ad740100 | 92 | |
f401e48c | 93 | static void free_data(void) { |
d200735e MS |
94 | free(tz.zone); |
95 | tz.zone = NULL; | |
f401e48c | 96 | |
d200735e | 97 | tz.local_rtc = false; |
f401e48c LP |
98 | } |
99 | ||
100 | static bool valid_timezone(const char *name) { | |
101 | const char *p; | |
102 | char *t; | |
103 | bool slash = false; | |
104 | int r; | |
105 | struct stat st; | |
106 | ||
107 | assert(name); | |
108 | ||
109 | if (*name == '/' || *name == 0) | |
110 | return false; | |
111 | ||
112 | for (p = name; *p; p++) { | |
113 | if (!(*p >= '0' && *p <= '9') && | |
114 | !(*p >= 'a' && *p <= 'z') && | |
115 | !(*p >= 'A' && *p <= 'Z') && | |
116 | !(*p == '-' || *p == '_' || *p == '+' || *p == '/')) | |
117 | return false; | |
118 | ||
119 | if (*p == '/') { | |
120 | ||
121 | if (slash) | |
122 | return false; | |
123 | ||
124 | slash = true; | |
125 | } else | |
126 | slash = false; | |
127 | } | |
128 | ||
129 | if (slash) | |
130 | return false; | |
131 | ||
132 | t = strappend("/usr/share/zoneinfo/", name); | |
133 | if (!t) | |
134 | return false; | |
135 | ||
136 | r = stat(t, &st); | |
137 | free(t); | |
138 | ||
139 | if (r < 0) | |
140 | return false; | |
141 | ||
142 | if (!S_ISREG(st.st_mode)) | |
143 | return false; | |
144 | ||
145 | return true; | |
146 | } | |
147 | ||
148 | static void verify_timezone(void) { | |
149 | char *p, *a = NULL, *b = NULL; | |
150 | size_t l, q; | |
151 | int j, k; | |
152 | ||
d200735e | 153 | if (!tz.zone) |
f401e48c LP |
154 | return; |
155 | ||
d200735e | 156 | p = strappend("/usr/share/zoneinfo/", tz.zone); |
f401e48c | 157 | if (!p) { |
0d0f0c50 | 158 | log_oom(); |
f401e48c LP |
159 | return; |
160 | } | |
161 | ||
162 | j = read_full_file("/etc/localtime", &a, &l); | |
163 | k = read_full_file(p, &b, &q); | |
164 | ||
165 | free(p); | |
166 | ||
167 | if (j < 0 || k < 0 || l != q || memcmp(a, b, l)) { | |
168 | log_warning("/etc/localtime and /etc/timezone out of sync."); | |
d200735e MS |
169 | free(tz.zone); |
170 | tz.zone = NULL; | |
f401e48c LP |
171 | } |
172 | ||
173 | free(a); | |
174 | free(b); | |
175 | } | |
176 | ||
177 | static int read_data(void) { | |
178 | int r; | |
f401e48c LP |
179 | |
180 | free_data(); | |
181 | ||
d200735e | 182 | r = read_one_line_file("/etc/timezone", &tz.zone); |
a724d2ed LP |
183 | if (r < 0) { |
184 | if (r != -ENOENT) | |
185 | log_warning("Failed to read /etc/timezone: %s", strerror(-r)); | |
186 | ||
187 | #ifdef TARGET_FEDORA | |
188 | r = parse_env_file("/etc/sysconfig/clock", NEWLINE, | |
d200735e | 189 | "ZONE", &tz.zone, |
a724d2ed LP |
190 | NULL); |
191 | ||
192 | if (r < 0 && r != -ENOENT) | |
193 | log_warning("Failed to read /etc/sysconfig/clock: %s", strerror(-r)); | |
194 | #endif | |
195 | } | |
196 | ||
d200735e MS |
197 | if (isempty(tz.zone)) { |
198 | free(tz.zone); | |
199 | tz.zone = NULL; | |
a724d2ed | 200 | } |
f401e48c LP |
201 | |
202 | verify_timezone(); | |
203 | ||
d200735e | 204 | tz.local_rtc = hwclock_is_localtime() > 0; |
f401e48c LP |
205 | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static int write_data_timezone(void) { | |
210 | int r = 0; | |
211 | char *p; | |
212 | ||
d200735e | 213 | if (!tz.zone) { |
f401e48c LP |
214 | if (unlink("/etc/timezone") < 0 && errno != ENOENT) |
215 | r = -errno; | |
216 | ||
217 | if (unlink("/etc/localtime") < 0 && errno != ENOENT) | |
218 | r = -errno; | |
219 | ||
220 | return r; | |
221 | } | |
222 | ||
d200735e | 223 | p = strappend("/usr/share/zoneinfo/", tz.zone); |
0d0f0c50 SL |
224 | if (!p) |
225 | return log_oom(); | |
f401e48c LP |
226 | |
227 | r = symlink_or_copy_atomic(p, "/etc/localtime"); | |
228 | free(p); | |
229 | ||
230 | if (r < 0) | |
231 | return r; | |
232 | ||
d200735e | 233 | r = write_one_line_file_atomic("/etc/timezone", tz.zone); |
f401e48c LP |
234 | if (r < 0) |
235 | return r; | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static int write_data_local_rtc(void) { | |
241 | int r; | |
242 | char *s, *w; | |
243 | ||
244 | r = read_full_file("/etc/adjtime", &s, NULL); | |
245 | if (r < 0) { | |
246 | if (r != -ENOENT) | |
247 | return r; | |
248 | ||
d200735e | 249 | if (!tz.local_rtc) |
f401e48c LP |
250 | return 0; |
251 | ||
252 | w = strdup(NULL_ADJTIME_LOCAL); | |
253 | if (!w) | |
254 | return -ENOMEM; | |
255 | } else { | |
256 | char *p, *e; | |
257 | size_t a, b; | |
258 | ||
259 | p = strchr(s, '\n'); | |
260 | if (!p) { | |
261 | free(s); | |
262 | return -EIO; | |
263 | } | |
264 | ||
265 | p = strchr(p+1, '\n'); | |
266 | if (!p) { | |
267 | free(s); | |
268 | return -EIO; | |
269 | } | |
270 | ||
271 | p++; | |
272 | e = strchr(p, '\n'); | |
8ea913b2 | 273 | if (!e) { |
f401e48c LP |
274 | free(s); |
275 | return -EIO; | |
276 | } | |
277 | ||
278 | a = p - s; | |
279 | b = strlen(e); | |
280 | ||
d200735e | 281 | w = new(char, a + (tz.local_rtc ? 5 : 3) + b + 1); |
f401e48c LP |
282 | if (!w) { |
283 | free(s); | |
284 | return -ENOMEM; | |
285 | } | |
286 | ||
d200735e | 287 | *(char*) mempcpy(stpcpy(mempcpy(w, s, a), tz.local_rtc ? "LOCAL" : "UTC"), e, b) = 0; |
f401e48c LP |
288 | |
289 | if (streq(w, NULL_ADJTIME_UTC)) { | |
290 | free(w); | |
291 | ||
292 | if (unlink("/etc/adjtime") < 0) { | |
293 | if (errno != ENOENT) | |
294 | return -errno; | |
295 | } | |
296 | ||
297 | return 0; | |
298 | } | |
299 | } | |
300 | ||
301 | r = write_one_line_file_atomic("/etc/adjtime", w); | |
302 | free(w); | |
303 | ||
304 | return r; | |
305 | } | |
306 | ||
ac7019f3 | 307 | static char** get_ntp_services(void) { |
b32d1675 LP |
308 | char **r = NULL, **files, **i; |
309 | int k; | |
310 | ||
311 | k = conf_files_list(&files, ".list", | |
312 | "/etc/systemd/ntp-units.d", | |
313 | "/run/systemd/ntp-units.d", | |
314 | "/usr/local/lib/systemd/ntp-units.d", | |
315 | "/usr/lib/systemd/ntp-units.d", | |
316 | NULL); | |
317 | if (k < 0) | |
ac7019f3 LP |
318 | return NULL; |
319 | ||
b32d1675 LP |
320 | STRV_FOREACH(i, files) { |
321 | FILE *f; | |
ac7019f3 | 322 | |
b32d1675 LP |
323 | f = fopen(*i, "re"); |
324 | if (!f) | |
325 | continue; | |
ac7019f3 | 326 | |
b32d1675 LP |
327 | for (;;) { |
328 | char line[PATH_MAX], *l, **q; | |
ac7019f3 | 329 | |
b32d1675 | 330 | if (!fgets(line, sizeof(line), f)) { |
ac7019f3 | 331 | |
b32d1675 LP |
332 | if (ferror(f)) |
333 | log_error("Failed to read NTP units file: %m"); | |
ac7019f3 | 334 | |
b32d1675 LP |
335 | break; |
336 | } | |
337 | ||
338 | l = strstrip(line); | |
339 | if (l[0] == 0 || l[0] == '#') | |
340 | continue; | |
341 | ||
342 | q = strv_append(r, l); | |
343 | if (!q) { | |
0d0f0c50 | 344 | log_oom(); |
b32d1675 LP |
345 | break; |
346 | } | |
ac7019f3 | 347 | |
b32d1675 LP |
348 | strv_free(r); |
349 | r = q; | |
ac7019f3 LP |
350 | } |
351 | ||
b32d1675 | 352 | fclose(f); |
ac7019f3 LP |
353 | } |
354 | ||
b32d1675 | 355 | strv_free(files); |
ac7019f3 | 356 | |
f6c13ce4 | 357 | return strv_uniq(r); |
ac7019f3 LP |
358 | } |
359 | ||
c5f0532f LP |
360 | static int read_ntp(DBusConnection *bus) { |
361 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
362 | DBusError error; |
363 | int r; | |
ac7019f3 | 364 | char **i, **l; |
c5f0532f LP |
365 | |
366 | assert(bus); | |
367 | ||
368 | dbus_error_init(&error); | |
369 | ||
ac7019f3 LP |
370 | l = get_ntp_services(); |
371 | STRV_FOREACH(i, l) { | |
372 | const char *s; | |
373 | ||
374 | if (m) | |
375 | dbus_message_unref(m); | |
376 | m = dbus_message_new_method_call( | |
377 | "org.freedesktop.systemd1", | |
378 | "/org/freedesktop/systemd1", | |
379 | "org.freedesktop.systemd1.Manager", | |
380 | "GetUnitFileState"); | |
381 | if (!m) { | |
0d0f0c50 | 382 | r = log_oom(); |
ac7019f3 LP |
383 | goto finish; |
384 | } | |
c5f0532f | 385 | |
ac7019f3 LP |
386 | if (!dbus_message_append_args(m, |
387 | DBUS_TYPE_STRING, i, | |
388 | DBUS_TYPE_INVALID)) { | |
0d0f0c50 | 389 | r = log_oom(); |
ac7019f3 LP |
390 | goto finish; |
391 | } | |
c5f0532f | 392 | |
ac7019f3 LP |
393 | if (reply) |
394 | dbus_message_unref(reply); | |
395 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
396 | if (!reply) { | |
397 | if (streq(error.name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
398 | /* This implementation does not exist, try next one */ | |
399 | dbus_error_free(&error); | |
400 | continue; | |
401 | } | |
2aa4c315 | 402 | |
ac7019f3 LP |
403 | log_error("Failed to issue method call: %s", bus_error_message(&error)); |
404 | r = -EIO; | |
2aa4c315 LP |
405 | goto finish; |
406 | } | |
407 | ||
ac7019f3 LP |
408 | if (!dbus_message_get_args(reply, &error, |
409 | DBUS_TYPE_STRING, &s, | |
410 | DBUS_TYPE_INVALID)) { | |
411 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
412 | r = -EIO; | |
413 | goto finish; | |
414 | } | |
c5f0532f | 415 | |
ac7019f3 LP |
416 | tz.use_ntp = |
417 | streq(s, "enabled") || | |
418 | streq(s, "enabled-runtime"); | |
419 | r = 0; | |
c5f0532f LP |
420 | goto finish; |
421 | } | |
422 | ||
ac7019f3 LP |
423 | /* NTP is not installed. */ |
424 | tz.use_ntp = 0; | |
c5f0532f LP |
425 | r = 0; |
426 | ||
427 | finish: | |
428 | if (m) | |
429 | dbus_message_unref(m); | |
430 | ||
431 | if (reply) | |
432 | dbus_message_unref(reply); | |
433 | ||
ac7019f3 LP |
434 | strv_free(l); |
435 | ||
c5f0532f LP |
436 | dbus_error_free(&error); |
437 | ||
438 | return r; | |
439 | } | |
440 | ||
441 | static int start_ntp(DBusConnection *bus, DBusError *error) { | |
442 | DBusMessage *m = NULL, *reply = NULL; | |
ac7019f3 LP |
443 | const char *mode = "replace"; |
444 | char **i, **l; | |
c5f0532f LP |
445 | int r; |
446 | ||
447 | assert(bus); | |
448 | assert(error); | |
449 | ||
ac7019f3 LP |
450 | l = get_ntp_services(); |
451 | STRV_FOREACH(i, l) { | |
452 | if (m) | |
453 | dbus_message_unref(m); | |
454 | m = dbus_message_new_method_call( | |
455 | "org.freedesktop.systemd1", | |
456 | "/org/freedesktop/systemd1", | |
457 | "org.freedesktop.systemd1.Manager", | |
458 | tz.use_ntp ? "StartUnit" : "StopUnit"); | |
459 | if (!m) { | |
460 | log_error("Could not allocate message."); | |
461 | r = -ENOMEM; | |
462 | goto finish; | |
463 | } | |
c5f0532f | 464 | |
ac7019f3 LP |
465 | if (!dbus_message_append_args(m, |
466 | DBUS_TYPE_STRING, i, | |
467 | DBUS_TYPE_STRING, &mode, | |
468 | DBUS_TYPE_INVALID)) { | |
469 | log_error("Could not append arguments to message."); | |
470 | r = -ENOMEM; | |
471 | goto finish; | |
472 | } | |
473 | ||
474 | if (reply) | |
475 | dbus_message_unref(reply); | |
476 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
477 | if (!reply) { | |
478 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound") || | |
479 | streq(error->name, "org.freedesktop.systemd1.LoadFailed") || | |
480 | streq(error->name, "org.freedesktop.systemd1.NoSuchUnit")) { | |
481 | /* This implementation does not exist, try next one */ | |
482 | dbus_error_free(error); | |
483 | continue; | |
484 | } | |
c5f0532f | 485 | |
ac7019f3 LP |
486 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
487 | r = -EIO; | |
488 | goto finish; | |
489 | } | |
490 | ||
491 | r = 0; | |
c5f0532f LP |
492 | goto finish; |
493 | } | |
494 | ||
ac7019f3 LP |
495 | /* No implementaiton available... */ |
496 | r = -ENOENT; | |
c5f0532f LP |
497 | |
498 | finish: | |
499 | if (m) | |
500 | dbus_message_unref(m); | |
501 | ||
502 | if (reply) | |
503 | dbus_message_unref(reply); | |
504 | ||
ac7019f3 LP |
505 | strv_free(l); |
506 | ||
c5f0532f LP |
507 | return r; |
508 | } | |
509 | ||
510 | static int enable_ntp(DBusConnection *bus, DBusError *error) { | |
511 | DBusMessage *m = NULL, *reply = NULL; | |
c5f0532f LP |
512 | int r; |
513 | DBusMessageIter iter; | |
514 | dbus_bool_t f = FALSE, t = TRUE; | |
ac7019f3 | 515 | char **i, **l; |
c5f0532f LP |
516 | |
517 | assert(bus); | |
518 | assert(error); | |
519 | ||
ac7019f3 LP |
520 | l = get_ntp_services(); |
521 | STRV_FOREACH(i, l) { | |
522 | char* k[2]; | |
523 | ||
524 | if (m) | |
525 | dbus_message_unref(m); | |
526 | m = dbus_message_new_method_call( | |
527 | "org.freedesktop.systemd1", | |
528 | "/org/freedesktop/systemd1", | |
529 | "org.freedesktop.systemd1.Manager", | |
530 | tz.use_ntp ? "EnableUnitFiles" : "DisableUnitFiles"); | |
531 | if (!m) { | |
532 | log_error("Could not allocate message."); | |
533 | r = -ENOMEM; | |
534 | goto finish; | |
535 | } | |
c5f0532f | 536 | |
ac7019f3 | 537 | dbus_message_iter_init_append(m, &iter); |
c5f0532f | 538 | |
ac7019f3 LP |
539 | k[0] = *i; |
540 | k[1] = NULL; | |
c5f0532f | 541 | |
ac7019f3 LP |
542 | r = bus_append_strv_iter(&iter, k); |
543 | if (r < 0) { | |
544 | log_error("Failed to append unit files."); | |
545 | goto finish; | |
546 | } | |
c5f0532f | 547 | |
ac7019f3 LP |
548 | /* send runtime bool */ |
549 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &f)) { | |
550 | log_error("Failed to append runtime boolean."); | |
c5f0532f LP |
551 | r = -ENOMEM; |
552 | goto finish; | |
553 | } | |
c5f0532f | 554 | |
ac7019f3 LP |
555 | if (tz.use_ntp) { |
556 | /* send force bool */ | |
557 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &t)) { | |
558 | log_error("Failed to append force boolean."); | |
559 | r = -ENOMEM; | |
560 | goto finish; | |
561 | } | |
562 | } | |
c5f0532f | 563 | |
ac7019f3 LP |
564 | if (reply) |
565 | dbus_message_unref(reply); | |
566 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
567 | if (!reply) { | |
568 | if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound")) { | |
569 | /* This implementation does not exist, try next one */ | |
570 | dbus_error_free(error); | |
571 | continue; | |
572 | } | |
c5f0532f | 573 | |
ac7019f3 LP |
574 | log_error("Failed to issue method call: %s", bus_error_message(error)); |
575 | r = -EIO; | |
576 | goto finish; | |
577 | } | |
578 | ||
579 | dbus_message_unref(m); | |
580 | m = dbus_message_new_method_call( | |
581 | "org.freedesktop.systemd1", | |
582 | "/org/freedesktop/systemd1", | |
583 | "org.freedesktop.systemd1.Manager", | |
584 | "Reload"); | |
585 | if (!m) { | |
586 | log_error("Could not allocate message."); | |
587 | r = -ENOMEM; | |
588 | goto finish; | |
589 | } | |
590 | ||
591 | dbus_message_unref(reply); | |
592 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error); | |
593 | if (!reply) { | |
594 | log_error("Failed to issue method call: %s", bus_error_message(error)); | |
595 | r = -EIO; | |
596 | goto finish; | |
597 | } | |
598 | ||
599 | r = 0; | |
c5f0532f LP |
600 | goto finish; |
601 | } | |
602 | ||
ac7019f3 | 603 | r = -ENOENT; |
c5f0532f LP |
604 | |
605 | finish: | |
606 | if (m) | |
607 | dbus_message_unref(m); | |
608 | ||
609 | if (reply) | |
610 | dbus_message_unref(reply); | |
611 | ||
ac7019f3 LP |
612 | strv_free(l); |
613 | ||
c5f0532f LP |
614 | return r; |
615 | } | |
616 | ||
617 | static int property_append_ntp(DBusMessageIter *i, const char *property, void *data) { | |
618 | dbus_bool_t db; | |
619 | ||
620 | assert(i); | |
621 | assert(property); | |
622 | ||
d200735e | 623 | db = tz.use_ntp > 0; |
c5f0532f LP |
624 | |
625 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db)) | |
626 | return -ENOMEM; | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
d200735e MS |
631 | static const BusProperty bus_timedate_properties[] = { |
632 | { "Timezone", bus_property_append_string, "s", offsetof(TZ, zone), true }, | |
633 | { "LocalRTC", bus_property_append_bool, "b", offsetof(TZ, local_rtc) }, | |
634 | { "NTP", property_append_ntp, "b", offsetof(TZ, use_ntp) }, | |
635 | { NULL, } | |
636 | }; | |
637 | ||
638 | static const BusBoundProperties bps[] = { | |
639 | { "org.freedesktop.timedate1", bus_timedate_properties, &tz }, | |
640 | { NULL, } | |
641 | }; | |
642 | ||
f401e48c LP |
643 | static DBusHandlerResult timedate_message_handler( |
644 | DBusConnection *connection, | |
645 | DBusMessage *message, | |
646 | void *userdata) { | |
647 | ||
f401e48c LP |
648 | DBusMessage *reply = NULL, *changed = NULL; |
649 | DBusError error; | |
650 | int r; | |
651 | ||
652 | assert(connection); | |
653 | assert(message); | |
654 | ||
655 | dbus_error_init(&error); | |
656 | ||
657 | if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTimezone")) { | |
658 | const char *z; | |
659 | dbus_bool_t interactive; | |
660 | ||
661 | if (!dbus_message_get_args( | |
662 | message, | |
663 | &error, | |
664 | DBUS_TYPE_STRING, &z, | |
665 | DBUS_TYPE_BOOLEAN, &interactive, | |
666 | DBUS_TYPE_INVALID)) | |
667 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
668 | ||
669 | if (!valid_timezone(z)) | |
670 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
671 | ||
d200735e | 672 | if (!streq_ptr(z, tz.zone)) { |
f401e48c LP |
673 | char *t; |
674 | ||
89f13440 | 675 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-timezone", interactive, NULL, &error); |
f401e48c LP |
676 | if (r < 0) |
677 | return bus_send_error_reply(connection, message, &error, r); | |
678 | ||
679 | t = strdup(z); | |
680 | if (!t) | |
681 | goto oom; | |
682 | ||
d200735e MS |
683 | free(tz.zone); |
684 | tz.zone = t; | |
f401e48c | 685 | |
2076cf88 | 686 | /* 1. Write new configuration file */ |
f401e48c LP |
687 | r = write_data_timezone(); |
688 | if (r < 0) { | |
689 | log_error("Failed to set timezone: %s", strerror(-r)); | |
690 | return bus_send_error_reply(connection, message, NULL, r); | |
691 | } | |
692 | ||
d200735e | 693 | if (tz.local_rtc) { |
2076cf88 LP |
694 | struct timespec ts; |
695 | struct tm *tm; | |
696 | ||
697 | /* 2. Teach kernel new timezone */ | |
ff4daf5a | 698 | hwclock_apply_localtime_delta(NULL); |
2076cf88 LP |
699 | |
700 | /* 3. Sync RTC from system clock, with the new delta */ | |
701 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
702 | assert_se(tm = localtime(&ts.tv_sec)); | |
703 | hwclock_set_time(tm); | |
704 | } | |
705 | ||
877d54e9 LP |
706 | log_struct(LOG_INFO, |
707 | "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_TIMEZONE_CHANGE), | |
708 | "TIMEZONE=%s", tz.zone, | |
709 | "MESSAGE=Changed timezone to '%s'.", tz.zone, | |
710 | NULL); | |
f401e48c LP |
711 | |
712 | changed = bus_properties_changed_new( | |
713 | "/org/freedesktop/timedate1", | |
714 | "org.freedesktop.timedate1", | |
715 | "Timezone\0"); | |
716 | if (!changed) | |
717 | goto oom; | |
718 | } | |
719 | ||
720 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetLocalRTC")) { | |
721 | dbus_bool_t lrtc; | |
05a4abb9 | 722 | dbus_bool_t fix_system; |
f401e48c LP |
723 | dbus_bool_t interactive; |
724 | ||
725 | if (!dbus_message_get_args( | |
726 | message, | |
727 | &error, | |
728 | DBUS_TYPE_BOOLEAN, &lrtc, | |
05a4abb9 | 729 | DBUS_TYPE_BOOLEAN, &fix_system, |
f401e48c LP |
730 | DBUS_TYPE_BOOLEAN, &interactive, |
731 | DBUS_TYPE_INVALID)) | |
732 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
733 | ||
d200735e | 734 | if (lrtc != tz.local_rtc) { |
2076cf88 LP |
735 | struct timespec ts; |
736 | ||
89f13440 | 737 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-local-rtc", interactive, NULL, &error); |
f401e48c LP |
738 | if (r < 0) |
739 | return bus_send_error_reply(connection, message, &error, r); | |
740 | ||
d200735e | 741 | tz.local_rtc = lrtc; |
f401e48c | 742 | |
2076cf88 | 743 | /* 1. Write new configuration file */ |
f401e48c LP |
744 | r = write_data_local_rtc(); |
745 | if (r < 0) { | |
746 | log_error("Failed to set RTC to local/UTC: %s", strerror(-r)); | |
747 | return bus_send_error_reply(connection, message, NULL, r); | |
748 | } | |
749 | ||
2076cf88 | 750 | /* 2. Teach kernel new timezone */ |
d200735e | 751 | if (tz.local_rtc) |
ff4daf5a | 752 | hwclock_apply_localtime_delta(NULL); |
2076cf88 LP |
753 | else |
754 | hwclock_reset_localtime_delta(); | |
755 | ||
756 | /* 3. Synchronize clocks */ | |
757 | assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); | |
758 | ||
05a4abb9 | 759 | if (fix_system) { |
2076cf88 LP |
760 | struct tm tm; |
761 | ||
762 | /* Sync system clock from RTC; first, | |
763 | * initialize the timezone fields of | |
764 | * struct tm. */ | |
d200735e | 765 | if (tz.local_rtc) |
2076cf88 LP |
766 | tm = *localtime(&ts.tv_sec); |
767 | else | |
768 | tm = *gmtime(&ts.tv_sec); | |
769 | ||
770 | /* Override the main fields of | |
771 | * struct tm, but not the timezone | |
772 | * fields */ | |
773 | if (hwclock_get_time(&tm) >= 0) { | |
774 | ||
775 | /* And set the system clock | |
776 | * with this */ | |
d200735e | 777 | if (tz.local_rtc) |
2076cf88 LP |
778 | ts.tv_sec = mktime(&tm); |
779 | else | |
780 | ts.tv_sec = timegm(&tm); | |
781 | ||
782 | clock_settime(CLOCK_REALTIME, &ts); | |
783 | } | |
784 | ||
785 | } else { | |
786 | struct tm *tm; | |
787 | ||
788 | /* Sync RTC from system clock */ | |
d200735e | 789 | if (tz.local_rtc) |
2076cf88 LP |
790 | tm = localtime(&ts.tv_sec); |
791 | else | |
792 | tm = gmtime(&ts.tv_sec); | |
793 | ||
794 | hwclock_set_time(tm); | |
795 | } | |
796 | ||
d200735e | 797 | log_info("RTC configured to %s time.", tz.local_rtc ? "local" : "UTC"); |
f401e48c LP |
798 | |
799 | changed = bus_properties_changed_new( | |
800 | "/org/freedesktop/timedate1", | |
801 | "org.freedesktop.timedate1", | |
802 | "LocalRTC\0"); | |
803 | if (!changed) | |
804 | goto oom; | |
805 | } | |
806 | ||
807 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTime")) { | |
808 | int64_t utc; | |
809 | dbus_bool_t relative; | |
810 | dbus_bool_t interactive; | |
811 | ||
812 | if (!dbus_message_get_args( | |
813 | message, | |
814 | &error, | |
815 | DBUS_TYPE_INT64, &utc, | |
816 | DBUS_TYPE_BOOLEAN, &relative, | |
817 | DBUS_TYPE_BOOLEAN, &interactive, | |
818 | DBUS_TYPE_INVALID)) | |
819 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
820 | ||
821 | if (!relative && utc <= 0) | |
822 | return bus_send_error_reply(connection, message, NULL, -EINVAL); | |
823 | ||
824 | if (!relative || utc != 0) { | |
825 | struct timespec ts; | |
2076cf88 | 826 | struct tm* tm; |
f401e48c | 827 | |
89f13440 | 828 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-time", interactive, NULL, &error); |
f401e48c LP |
829 | if (r < 0) |
830 | return bus_send_error_reply(connection, message, &error, r); | |
831 | ||
832 | if (relative) | |
833 | timespec_store(&ts, now(CLOCK_REALTIME) + utc); | |
834 | else | |
835 | timespec_store(&ts, utc); | |
836 | ||
2076cf88 | 837 | /* Set system clock */ |
f401e48c LP |
838 | if (clock_settime(CLOCK_REALTIME, &ts) < 0) { |
839 | log_error("Failed to set local time: %m"); | |
840 | return bus_send_error_reply(connection, message, NULL, -errno); | |
841 | } | |
842 | ||
2076cf88 | 843 | /* Sync down to RTC */ |
d200735e | 844 | if (tz.local_rtc) |
2076cf88 LP |
845 | tm = localtime(&ts.tv_sec); |
846 | else | |
847 | tm = gmtime(&ts.tv_sec); | |
848 | ||
849 | hwclock_set_time(tm); | |
850 | ||
877d54e9 LP |
851 | log_struct(LOG_INFO, |
852 | "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_TIME_CHANGE), | |
853 | "REALTIME=%llu", (unsigned long long) timespec_load(&ts), | |
854 | "MESSAGE=Changed local time to %s", ctime(&ts.tv_sec), | |
855 | NULL); | |
f401e48c | 856 | } |
c5f0532f LP |
857 | } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetNTP")) { |
858 | dbus_bool_t ntp; | |
859 | dbus_bool_t interactive; | |
860 | ||
861 | if (!dbus_message_get_args( | |
862 | message, | |
863 | &error, | |
864 | DBUS_TYPE_BOOLEAN, &ntp, | |
865 | DBUS_TYPE_BOOLEAN, &interactive, | |
866 | DBUS_TYPE_INVALID)) | |
867 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
868 | ||
d200735e | 869 | if (ntp != !!tz.use_ntp) { |
c5f0532f | 870 | |
89f13440 | 871 | r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-ntp", interactive, NULL, &error); |
c5f0532f LP |
872 | if (r < 0) |
873 | return bus_send_error_reply(connection, message, &error, r); | |
874 | ||
d200735e | 875 | tz.use_ntp = !!ntp; |
c5f0532f LP |
876 | |
877 | r = enable_ntp(connection, &error); | |
878 | if (r < 0) | |
879 | return bus_send_error_reply(connection, message, &error, r); | |
880 | ||
881 | r = start_ntp(connection, &error); | |
882 | if (r < 0) | |
883 | return bus_send_error_reply(connection, message, &error, r); | |
884 | ||
d200735e | 885 | log_info("Set NTP to %s", tz.use_ntp ? "enabled" : "disabled"); |
c5f0532f LP |
886 | |
887 | changed = bus_properties_changed_new( | |
888 | "/org/freedesktop/timedate1", | |
889 | "org.freedesktop.timedate1", | |
890 | "NTP\0"); | |
891 | if (!changed) | |
892 | goto oom; | |
893 | } | |
f401e48c LP |
894 | |
895 | } else | |
d200735e | 896 | return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps); |
f401e48c LP |
897 | |
898 | if (!(reply = dbus_message_new_method_return(message))) | |
899 | goto oom; | |
900 | ||
901 | if (!dbus_connection_send(connection, reply, NULL)) | |
902 | goto oom; | |
903 | ||
904 | dbus_message_unref(reply); | |
905 | reply = NULL; | |
906 | ||
907 | if (changed) { | |
908 | ||
909 | if (!dbus_connection_send(connection, changed, NULL)) | |
910 | goto oom; | |
911 | ||
912 | dbus_message_unref(changed); | |
913 | } | |
914 | ||
915 | return DBUS_HANDLER_RESULT_HANDLED; | |
916 | ||
917 | oom: | |
918 | if (reply) | |
919 | dbus_message_unref(reply); | |
920 | ||
921 | if (changed) | |
922 | dbus_message_unref(changed); | |
923 | ||
924 | dbus_error_free(&error); | |
925 | ||
926 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
927 | } | |
928 | ||
929 | static int connect_bus(DBusConnection **_bus) { | |
930 | static const DBusObjectPathVTable timedate_vtable = { | |
931 | .message_function = timedate_message_handler | |
932 | }; | |
933 | DBusError error; | |
934 | DBusConnection *bus = NULL; | |
935 | int r; | |
936 | ||
937 | assert(_bus); | |
938 | ||
939 | dbus_error_init(&error); | |
940 | ||
941 | bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error); | |
942 | if (!bus) { | |
a2e52832 | 943 | log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error)); |
f401e48c LP |
944 | r = -ECONNREFUSED; |
945 | goto fail; | |
946 | } | |
947 | ||
ad740100 LP |
948 | dbus_connection_set_exit_on_disconnect(bus, FALSE); |
949 | ||
950 | if (!dbus_connection_register_object_path(bus, "/org/freedesktop/timedate1", &timedate_vtable, NULL) || | |
951 | !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) { | |
0d0f0c50 | 952 | r = log_oom(); |
f401e48c LP |
953 | goto fail; |
954 | } | |
955 | ||
add10b5a LP |
956 | r = dbus_bus_request_name(bus, "org.freedesktop.timedate1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error); |
957 | if (dbus_error_is_set(&error)) { | |
958 | log_error("Failed to register name on bus: %s", bus_error_message(&error)); | |
959 | r = -EEXIST; | |
960 | goto fail; | |
961 | } | |
962 | ||
963 | if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { | |
964 | log_error("Failed to acquire name."); | |
f401e48c LP |
965 | r = -EEXIST; |
966 | goto fail; | |
967 | } | |
968 | ||
969 | if (_bus) | |
970 | *_bus = bus; | |
971 | ||
972 | return 0; | |
973 | ||
974 | fail: | |
975 | dbus_connection_close(bus); | |
976 | dbus_connection_unref(bus); | |
977 | ||
978 | dbus_error_free(&error); | |
979 | ||
980 | return r; | |
981 | } | |
982 | ||
983 | int main(int argc, char *argv[]) { | |
984 | int r; | |
985 | DBusConnection *bus = NULL; | |
ad740100 | 986 | bool exiting = false; |
f401e48c LP |
987 | |
988 | log_set_target(LOG_TARGET_AUTO); | |
989 | log_parse_environment(); | |
990 | log_open(); | |
991 | ||
4c12626c LP |
992 | umask(0022); |
993 | ||
91f9dcaf LP |
994 | if (argc == 2 && streq(argv[1], "--introspect")) { |
995 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
996 | "<node>\n", stdout); | |
997 | fputs(timedate_interface, stdout); | |
998 | fputs("</node>\n", stdout); | |
999 | return 0; | |
1000 | } | |
1001 | ||
f401e48c LP |
1002 | if (argc != 1) { |
1003 | log_error("This program takes no arguments."); | |
1004 | r = -EINVAL; | |
1005 | goto finish; | |
1006 | } | |
1007 | ||
f401e48c LP |
1008 | r = read_data(); |
1009 | if (r < 0) { | |
1010 | log_error("Failed to read timezone data: %s", strerror(-r)); | |
1011 | goto finish; | |
1012 | } | |
1013 | ||
1014 | r = connect_bus(&bus); | |
1015 | if (r < 0) | |
1016 | goto finish; | |
1017 | ||
c5f0532f LP |
1018 | r = read_ntp(bus); |
1019 | if (r < 0) { | |
1020 | log_error("Failed to determine whether NTP is enabled: %s", strerror(-r)); | |
1021 | goto finish; | |
1022 | } | |
1023 | ||
ad740100 LP |
1024 | remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC; |
1025 | for (;;) { | |
1026 | ||
1027 | if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC))) | |
1028 | break; | |
1029 | ||
1030 | if (!exiting && remain_until < now(CLOCK_MONOTONIC)) { | |
1031 | exiting = true; | |
1032 | bus_async_unregister_and_exit(bus, "org.freedesktop.hostname1"); | |
1033 | } | |
1034 | } | |
f401e48c LP |
1035 | |
1036 | r = 0; | |
1037 | ||
1038 | finish: | |
1039 | free_data(); | |
1040 | ||
1041 | if (bus) { | |
1042 | dbus_connection_flush(bus); | |
1043 | dbus_connection_close(bus); | |
1044 | dbus_connection_unref(bus); | |
1045 | } | |
1046 | ||
1047 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1048 | } |