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unit: use safe downcasts, remove pointless casts
[thirdparty/systemd.git] / src / locale / localed.c
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1822350d
KS		 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
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
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
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
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"
32#include "def.h"
33
34#define INTERFACE \
35 " <interface name=\"org.freedesktop.locale1\">\n" \
36 " <property name=\"Locale\" type=\"as\" access=\"read\"/>\n" \
37 " <property name=\"VConsoleKeymap\" type=\"s\" access=\"read\"/>\n" \
38 " <property name=\"VConsoleKeymapToggle\" type=\"s\" access=\"read\"/>\n" \
39 " <property name=\"X11Layout\" type=\"s\" access=\"read\"/>\n" \
40 " <property name=\"X11Model\" type=\"s\" access=\"read\"/>\n" \
41 " <property name=\"X11Variant\" type=\"s\" access=\"read\"/>\n" \
42 " <property name=\"X11Options\" type=\"s\" access=\"read\"/>\n" \
43 " <method name=\"SetLocale\">\n" \
44 " <arg name=\"locale\" type=\"as\" direction=\"in\"/>\n" \
45 " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
46 " </method>\n" \
47 " <method name=\"SetVConsoleKeyboard\">\n" \
48 " <arg name=\"keymap\" type=\"s\" direction=\"in\"/>\n" \
49 " <arg name=\"keymap_toggle\" type=\"s\" direction=\"in\"/>\n" \
50 " <arg name=\"convert\" type=\"b\" direction=\"in\"/>\n" \
51 " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
52 " </method>\n" \
53 " <method name=\"SetX11Keyboard\">\n" \
54 " <arg name=\"layout\" type=\"s\" direction=\"in\"/>\n" \
55 " <arg name=\"model\" type=\"s\" direction=\"in\"/>\n" \
56 " <arg name=\"variant\" type=\"s\" direction=\"in\"/>\n" \
57 " <arg name=\"options\" type=\"s\" direction=\"in\"/>\n" \
58 " <arg name=\"convert\" type=\"b\" direction=\"in\"/>\n" \
59 " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
60 " </method>\n" \
61 " </interface>\n"
62
63#define INTROSPECTION \
64 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
65 "<node>\n" \
66 INTERFACE \
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 \
74 "org.freedesktop.locale1\0"
75
76const char locale_interface[] _introspect_("locale1") = INTERFACE;
77
78enum {
79 /* We don't list LC_ALL here on purpose. People should be
80 * using LANG instead. */
81
82 PROP_LANG,
83 PROP_LANGUAGE,
84 PROP_LC_CTYPE,
85 PROP_LC_NUMERIC,
86 PROP_LC_TIME,
87 PROP_LC_COLLATE,
88 PROP_LC_MONETARY,
89 PROP_LC_MESSAGES,
90 PROP_LC_PAPER,
91 PROP_LC_NAME,
92 PROP_LC_ADDRESS,
93 PROP_LC_TELEPHONE,
94 PROP_LC_MEASUREMENT,
95 PROP_LC_IDENTIFICATION,
96 _PROP_MAX
97};
98
99static const char * const names[_PROP_MAX] = {
100 [PROP_LANG] = "LANG",
101 [PROP_LANGUAGE] = "LANGUAGE",
102 [PROP_LC_CTYPE] = "LC_CTYPE",
103 [PROP_LC_NUMERIC] = "LC_NUMERIC",
104 [PROP_LC_TIME] = "LC_TIME",
105 [PROP_LC_COLLATE] = "LC_COLLATE",
106 [PROP_LC_MONETARY] = "LC_MONETARY",
107 [PROP_LC_MESSAGES] = "LC_MESSAGES",
108 [PROP_LC_PAPER] = "LC_PAPER",
109 [PROP_LC_NAME] = "LC_NAME",
110 [PROP_LC_ADDRESS] = "LC_ADDRESS",
111 [PROP_LC_TELEPHONE] = "LC_TELEPHONE",
112 [PROP_LC_MEASUREMENT] = "LC_MEASUREMENT",
113 [PROP_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
114};
115
116static char *data[_PROP_MAX] = {
117 NULL,
118 NULL,
119 NULL,
120 NULL,
121 NULL,
122 NULL,
123 NULL,
124 NULL,
125 NULL,
126 NULL,
127 NULL,
128 NULL,
129 NULL
130};
131
132static char *x11_layout = NULL, *x11_model = NULL, *x11_variant = NULL, *x11_options = NULL;
133static char *vc_keymap = NULL, *vc_keymap_toggle = NULL;
134
135static usec_t remain_until = 0;
136
137static int free_and_set(char **s, const char *v) {
138 int r;
139 char *t;
140
141 assert(s);
142
143 r = strdup_or_null(isempty(v) ? NULL : v, &t);
144 if (r < 0)
145 return r;
146
147 free(*s);
148 *s = t;
149
150 return 0;
151}
152
153static void free_data_locale(void) {
154 int p;
155
156 for (p = 0; p < _PROP_MAX; p++) {
157 free(data[p]);
158 data[p] = NULL;
159 }
160}
161
162static void free_data_x11(void) {
163 free(x11_layout);
164 free(x11_model);
165 free(x11_variant);
166 free(x11_options);
167
168 x11_layout = x11_model = x11_variant = x11_options = NULL;
169}
170
171static void free_data_vconsole(void) {
172 free(vc_keymap);
173 free(vc_keymap_toggle);
174
175 vc_keymap = vc_keymap_toggle = NULL;
176}
177
178static void simplify(void) {
179 int p;
180
181 for (p = 1; p < _PROP_MAX; p++)
182 if (isempty(data[p]) || streq_ptr(data[PROP_LANG], data[p])) {
183 free(data[p]);
184 data[p] = NULL;
185 }
186}
187
188static int read_data_locale(void) {
189 int r;
190
191 free_data_locale();
192
193 r = parse_env_file("/etc/locale.conf", NEWLINE,
194 "LANG", &data[PROP_LANG],
195 "LANGUAGE", &data[PROP_LANGUAGE],
196 "LC_CTYPE", &data[PROP_LC_CTYPE],
197 "LC_NUMERIC", &data[PROP_LC_NUMERIC],
198 "LC_TIME", &data[PROP_LC_TIME],
199 "LC_COLLATE", &data[PROP_LC_COLLATE],
200 "LC_MONETARY", &data[PROP_LC_MONETARY],
201 "LC_MESSAGES", &data[PROP_LC_MESSAGES],
202 "LC_PAPER", &data[PROP_LC_PAPER],
203 "LC_NAME", &data[PROP_LC_NAME],
204 "LC_ADDRESS", &data[PROP_LC_ADDRESS],
205 "LC_TELEPHONE", &data[PROP_LC_TELEPHONE],
206 "LC_MEASUREMENT", &data[PROP_LC_MEASUREMENT],
207 "LC_IDENTIFICATION", &data[PROP_LC_IDENTIFICATION],
208 NULL);
209
210 if (r == -ENOENT) {
211 int p;
212
213 /* Fill in what we got passed from systemd. */
214
215 for (p = 0; p < _PROP_MAX; p++) {
216 char *e, *d;
217
218 assert(names[p]);
219
220 e = getenv(names[p]);
221 if (e) {
222 d = strdup(e);
223 if (!d)
224 return -ENOMEM;
225 } else
226 d = NULL;
227
228 free(data[p]);
229 data[p] = d;
230 }
231
232 r = 0;
233 }
234
235 simplify();
236 return r;
237}
238
239static void free_data(void) {
240 free_data_locale();
241 free_data_vconsole();
242 free_data_x11();
243}
244
245static int read_data_vconsole(void) {
246 int r;
247
248 free_data_vconsole();
249
250 r = parse_env_file("/etc/vconsole.conf", NEWLINE,
251 "KEYMAP", &vc_keymap,
252 "KEYMAP_TOGGLE", &vc_keymap_toggle,
253 NULL);
254
255 if (r < 0 && r != -ENOENT)
256 return r;
257
258 return 0;
259}
260
261static int read_data_x11(void) {
262 FILE *f;
263 char line[LINE_MAX];
264 bool in_section = false;
265
266 free_data_x11();
267
268 f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
269 if (!f) {
270 if (errno == ENOENT) {
271
272#ifdef TARGET_FEDORA
273 f = fopen("/etc/X11/xorg.conf.d/00-system-setup-keyboard.conf", "re");
274 if (!f) {
275 if (errno == ENOENT)
276 return 0;
277 else
278 return -errno;
279 }
280#else
281 return 0;
282#endif
283
284 } else
285 return -errno;
286 }
287
288 while (fgets(line, sizeof(line), f)) {
289 char *l;
290
291 char_array_0(line);
292 l = strstrip(line);
293
294 if (l[0] == 0 || l[0] == '#')
295 continue;
296
297 if (in_section && first_word(l, "Option")) {
298 char **a;
299
300 a = strv_split_quoted(l);
301 if (!a) {
302 fclose(f);
303 return -ENOMEM;
304 }
305
306 if (strv_length(a) == 3) {
307
308 if (streq(a[1], "XkbLayout")) {
309 free(x11_layout);
310 x11_layout = a[2];
311 a[2] = NULL;
312 } else if (streq(a[1], "XkbModel")) {
313 free(x11_model);
314 x11_model = a[2];
315 a[2] = NULL;
316 } else if (streq(a[1], "XkbVariant")) {
317 free(x11_variant);
318 x11_variant = a[2];
319 a[2] = NULL;
320 } else if (streq(a[1], "XkbOptions")) {
321 free(x11_options);
322 x11_options = a[2];
323 a[2] = NULL;
324 }
325 }
326
327 strv_free(a);
328
329 } else if (!in_section && first_word(l, "Section")) {
330 char **a;
331
332 a = strv_split_quoted(l);
333 if (!a) {
334 fclose(f);
335 return -ENOMEM;
336 }
337
338 if (strv_length(a) == 2 && streq(a[1], "InputClass"))
339 in_section = true;
340
341 strv_free(a);
342 } else if (in_section && first_word(l, "EndSection"))
343 in_section = false;
344 }
345
346 fclose(f);
347
348 return 0;
349}
350
351static int read_data(void) {
352 int r, q, p;
353
354 r = read_data_locale();
355 q = read_data_vconsole();
356 p = read_data_x11();
357
358 return r < 0 ? r : q < 0 ? q : p;
359}
360
361static int write_data_locale(void) {
362 int r, p;
363 char **l = NULL;
364
365 r = load_env_file("/etc/locale.conf", &l);
366 if (r < 0 && r != -ENOENT)
367 return r;
368
369 for (p = 0; p < _PROP_MAX; p++) {
370 char *t, **u;
371
372 assert(names[p]);
373
374 if (isempty(data[p])) {
375 l = strv_env_unset(l, names[p]);
376 continue;
377 }
378
379 if (asprintf(&t, "%s=%s", names[p], data[p]) < 0) {
380 strv_free(l);
381 return -ENOMEM;
382 }
383
384 u = strv_env_set(l, t);
385 free(t);
386 strv_free(l);
387
388 if (!u)
389 return -ENOMEM;
390
391 l = u;
392 }
393
394 if (strv_isempty(l)) {
395 strv_free(l);
396
397 if (unlink("/etc/locale.conf") < 0)
398 return errno == ENOENT ? 0 : -errno;
399
400 return 0;
401 }
402
403 r = write_env_file("/etc/locale.conf", l);
404 strv_free(l);
405
406 return r;
407}
408
409static void push_data(DBusConnection *bus) {
410 char **l_set = NULL, **l_unset = NULL, **t;
411 int c_set = 0, c_unset = 0, p;
412 DBusError error;
413 DBusMessage *m = NULL, *reply = NULL;
414 DBusMessageIter iter, sub;
415
416 dbus_error_init(&error);
417
418 assert(bus);
419
420 l_set = new0(char*, _PROP_MAX);
421 l_unset = new0(char*, _PROP_MAX);
422 if (!l_set || !l_unset) {
423 log_error("Out of memory");
424 goto finish;
425 }
426
427 for (p = 0; p < _PROP_MAX; p++) {
428 assert(names[p]);
429
430 if (isempty(data[p]))
431 l_unset[c_set++] = (char*) names[p];
432 else {
433 char *s;
434
435 if (asprintf(&s, "%s=%s", names[p], data[p]) < 0) {
436 log_error("Out of memory");
437 goto finish;
438 }
439
440 l_set[c_unset++] = s;
441 }
442 }
443
444 assert(c_set + c_unset == _PROP_MAX);
445 m = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnsetAndSetEnvironment");
446 if (!m) {
447 log_error("Could not allocate message.");
448 goto finish;
449 }
450
451 dbus_message_iter_init_append(m, &iter);
452
453 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
454 log_error("Out of memory.");
455 goto finish;
456 }
457
458 STRV_FOREACH(t, l_unset)
459 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, t)) {
460 log_error("Out of memory.");
461 goto finish;
462 }
463
464 if (!dbus_message_iter_close_container(&iter, &sub) ||
465 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
466 log_error("Out of memory.");
467 goto finish;
468 }
469
470 STRV_FOREACH(t, l_set)
471 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, t)) {
472 log_error("Out of memory.");
473 goto finish;
474 }
475
476 if (!dbus_message_iter_close_container(&iter, &sub)) {
477 log_error("Out of memory.");
478 goto finish;
479 }
480
481 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
482 if (!reply) {
483 log_error("Failed to set locale information: %s", bus_error_message(&error));
484 goto finish;
485 }
486
487finish:
488 if (m)
489 dbus_message_unref(m);
490
491 if (reply)
492 dbus_message_unref(reply);
493
494 dbus_error_free(&error);
495
496 strv_free(l_set);
497 free(l_unset);
498}
499
500static int write_data_vconsole(void) {
501 int r;
502 char **l = NULL;
503
504 r = load_env_file("/etc/vconsole.conf", &l);
505 if (r < 0 && r != -ENOENT)
506 return r;
507
508 if (isempty(vc_keymap))
509 l = strv_env_unset(l, "KEYMAP");
510 else {
511 char *s, **u;
512
513 s = strappend("KEYMAP=", vc_keymap);
514 if (!s) {
515 strv_free(l);
516 return -ENOMEM;
517 }
518
519 u = strv_env_set(l, s);
520 free(s);
521 strv_free(l);
522
523 if (!u)
524 return -ENOMEM;
525
526 l = u;
527 }
528
529 if (isempty(vc_keymap_toggle))
530 l = strv_env_unset(l, "KEYMAP_TOGGLE");
531 else {
532 char *s, **u;
533
534 s = strappend("KEYMAP_TOGGLE=", vc_keymap_toggle);
535 if (!s) {
536 strv_free(l);
537 return -ENOMEM;
538 }
539
540 u = strv_env_set(l, s);
541 free(s);
542 strv_free(l);
543
544 if (!u)
545 return -ENOMEM;
546
547 l = u;
548 }
549
550 if (strv_isempty(l)) {
551 strv_free(l);
552
553 if (unlink("/etc/vconsole.conf") < 0)
554 return errno == ENOENT ? 0 : -errno;
555
556 return 0;
557 }
558
559 r = write_env_file("/etc/vconsole.conf", l);
560 strv_free(l);
561
562 return r;
563}
564
565static int write_data_x11(void) {
566 FILE *f;
567 char *temp_path;
568 int r;
569
570 if (isempty(x11_layout) &&
571 isempty(x11_model) &&
572 isempty(x11_variant) &&
573 isempty(x11_options)) {
574
575#ifdef TARGET_FEDORA
576 unlink("/etc/X11/xorg.conf.d/00-system-setup-keyboard.conf");
577
578 /* Symlink this to /dev/null, so that s-s-k (if it is
579 * still running) doesn't recreate this. */
580 symlink("/dev/null", "/etc/X11/xorg.conf.d/00-system-setup-keyboard.conf");
581#endif
582
583 if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
584 return errno == ENOENT ? 0 : -errno;
585
586 return 0;
587 }
588
589 mkdir_parents("/etc/X11/xorg.conf.d", 0755);
590
591 r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
592 if (r < 0)
593 return r;
594
595 fchmod(fileno(f), 0644);
596
597 fputs("# Read and parsed by systemd-localed. It's probably wise not to edit this file\n"
598 "# manually too freely.\n"
599 "Section \"InputClass\"\n"
600 " Identifier \"system-keyboard\"\n"
601 " MatchIsKeyboard \"on\"\n", f);
602
603 if (!isempty(x11_layout))
604 fprintf(f, " Option \"XkbLayout\" \"%s\"\n", x11_layout);
605
606 if (!isempty(x11_model))
607 fprintf(f, " Option \"XkbModel\" \"%s\"\n", x11_model);
608
609 if (!isempty(x11_variant))
610 fprintf(f, " Option \"XkbVariant\" \"%s\"\n", x11_variant);
611
612 if (!isempty(x11_options))
613 fprintf(f, " Option \"XkbOptions\" \"%s\"\n", x11_options);
614
615 fputs("EndSection\n", f);
616 fflush(f);
617
618 if (ferror(f) || rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
619 r = -errno;
620 unlink("/etc/X11/xorg.conf.d/00-keyboard.conf");
621 unlink(temp_path);
622 } else {
623
624#ifdef TARGET_FEDORA
625 unlink("/etc/X11/xorg.conf.d/00-system-setup-keyboard.conf");
626
627 /* Symlink this to /dev/null, so that s-s-k (if it is
628 * still running) doesn't recreate this. */
629 symlink("/dev/null", "/etc/X11/xorg.conf.d/00-system-setup-keyboard.conf");
630#endif
631
632 r = 0;
633 }
634
635 fclose(f);
636 free(temp_path);
637
638 return r;
639}
640
641static int load_vconsole_keymap(DBusConnection *bus, DBusError *error) {
642 DBusMessage *m = NULL, *reply = NULL;
643 const char *name = "systemd-vconsole-setup.service", *mode = "replace";
644 int r;
645 DBusError _error;
646
647 assert(bus);
648
649 if (!error) {
650 dbus_error_init(&_error);
651 error = &_error;
652 }
653
654 m = dbus_message_new_method_call(
655 "org.freedesktop.systemd1",
656 "/org/freedesktop/systemd1",
657 "org.freedesktop.systemd1.Manager",
658 "RestartUnit");
659 if (!m) {
660 log_error("Could not allocate message.");
661 r = -ENOMEM;
662 goto finish;
663 }
664
665 if (!dbus_message_append_args(m,
666 DBUS_TYPE_STRING, &name,
667 DBUS_TYPE_STRING, &mode,
668 DBUS_TYPE_INVALID)) {
669 log_error("Could not append arguments to message.");
670 r = -ENOMEM;
671 goto finish;
672 }
673
674 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
675 if (!reply) {
676 log_error("Failed to issue method call: %s", bus_error_message(error));
677 r = -EIO;
678 goto finish;
679 }
680
681 r = 0;
682
683finish:
684 if (m)
685 dbus_message_unref(m);
686
687 if (reply)
688 dbus_message_unref(reply);
689
690 if (error == &_error)
691 dbus_error_free(error);
692
693 return r;
694}
695
696static char *strnulldash(const char *s) {
697 return s == NULL || *s == 0 || (s[0] == '-' && s[1] == 0) ? NULL : (char*) s;
698}
699
700static int read_next_mapping(FILE *f, unsigned *n, char ***a) {
701 assert(f);
702 assert(n);
703 assert(a);
704
705 for (;;) {
706 char line[LINE_MAX];
707 char *l, **b;
708
709 errno = 0;
710 if (!fgets(line, sizeof(line), f)) {
711
712 if (ferror(f))
713 return errno ? -errno : -EIO;
714
715 return 0;
716 }
717
718 (*n) ++;
719
720 l = strstrip(line);
721 if (l[0] == 0 || l[0] == '#')
722 continue;
723
724 b = strv_split_quoted(l);
725 if (!b)
726 return -ENOMEM;
727
728 if (strv_length(b) < 5) {
729 log_error("Invalid line "SYSTEMD_KBD_MODEL_MAP":%u, ignoring.", *n);
730 strv_free(b);
731 continue;
732
733 }
734
735 *a = b;
736 return 1;
737 }
738}
739
740static int convert_vconsole_to_x11(DBusConnection *connection) {
741 bool modified = false;
742
743 assert(connection);
744
745 if (isempty(vc_keymap)) {
746
747 modified =
748 !isempty(x11_layout) ||
749 !isempty(x11_model) ||
750 !isempty(x11_variant) ||
751 !isempty(x11_options);
752
753 free_data_x11();
754 } else {
755 FILE *f;
756 unsigned n = 0;
757
758 f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
759 if (!f)
760 return -errno;
761
762 for (;;) {
763 char **a;
764 int r;
765
766 r = read_next_mapping(f, &n, &a);
767 if (r < 0) {
768 fclose(f);
769 return r;
770 }
771
772 if (r == 0)
773 break;
774
775 if (!streq(vc_keymap, a[0])) {
776 strv_free(a);
777 continue;
778 }
779
780 if (!streq_ptr(x11_layout, strnulldash(a[1])) ||
781 !streq_ptr(x11_model, strnulldash(a[2])) ||
782 !streq_ptr(x11_variant, strnulldash(a[3])) ||
783 !streq_ptr(x11_options, strnulldash(a[4]))) {
784
785 if (free_and_set(&x11_layout, strnulldash(a[1])) < 0 ||
786 free_and_set(&x11_model, strnulldash(a[2])) < 0 ||
787 free_and_set(&x11_variant, strnulldash(a[3])) < 0 ||
788 free_and_set(&x11_options, strnulldash(a[4])) < 0) {
789 strv_free(a);
790 fclose(f);
791 return -ENOMEM;
792 }
793
794 modified = true;
795 }
796
797 strv_free(a);
798 break;
799 }
800
801 fclose(f);
802 }
803
804 if (modified) {
805 dbus_bool_t b;
806 DBusMessage *changed;
807 int r;
808
809 r = write_data_x11();
810 if (r < 0)
811 log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
812
813 changed = bus_properties_changed_new(
814 "/org/freedesktop/locale1",
815 "org.freedesktop.locale1",
816 "X11Layout\0"
817 "X11Model\0"
818 "X11Variant\0"
819 "X11Options\0");
820
821 if (!changed)
822 return -ENOMEM;
823
824 b = dbus_connection_send(connection, changed, NULL);
825 dbus_message_unref(changed);
826
827 if (!b)
828 return -ENOMEM;
829 }
830
831 return 0;
832}
833
834static int convert_x11_to_vconsole(DBusConnection *connection) {
835 bool modified = false;
836
837 assert(connection);
838
839 if (isempty(x11_layout)) {
840
841 modified =
842 !isempty(vc_keymap) ||
843 !isempty(vc_keymap_toggle);
844
845 free_data_x11();
846 } else {
847 FILE *f;
848 unsigned n = 0;
849 unsigned best_matching = 0;
850 char *new_keymap = NULL;
851
852 f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
853 if (!f)
854 return -errno;
855
856 for (;;) {
857 char **a;
858 unsigned matching = 0;
859 int r;
860
861 r = read_next_mapping(f, &n, &a);
862 if (r < 0) {
863 fclose(f);
864 return r;
865 }
866
867 if (r == 0)
868 break;
869
870 /* Determine how well matching this entry is */
871 if (streq_ptr(x11_layout, a[1]))
872 /* If we got an exact match, this is best */
873 matching = 10;
874 else {
875 size_t x;
876
877 x = strcspn(x11_layout, ",");
878
879 /* We have multiple X layouts, look
880 * for an entry that matches our key
881 * with the everything but the first
882 * layout stripped off. */
883 if (x > 0 &&
884 strlen(a[1]) == x &&
885 strncmp(x11_layout, a[1], x) == 0)
886 matching = 5;
887 else {
888 size_t w;
889
890 /* If that didn't work, strip
891 * off the other layouts from
892 * the entry, too */
893
894 w = strcspn(a[1], ",");
895
896 if (x > 0 && x == w &&
897 memcmp(x11_layout, a[1], x) == 0)
898 matching = 1;
899 }
900 }
901
902 if (matching > 0 &&
903 streq_ptr(x11_model, a[2])) {
904 matching++;
905
906 if (streq_ptr(x11_variant, a[3])) {
907 matching++;
908
909 if (streq_ptr(x11_options, a[4]))
910 matching++;
911 }
912 }
913
914 /* The best matching entry so far, then let's
915 * save that */
916 if (matching > best_matching) {
917 best_matching = matching;
918
919 free(new_keymap);
920 new_keymap = strdup(a[0]);
921
922 if (!new_keymap) {
923 strv_free(a);
924 fclose(f);
925 return -ENOMEM;
926 }
927 }
928
929 strv_free(a);
930 }
931
932 fclose(f);
933
934 if (!streq_ptr(vc_keymap, new_keymap)) {
935 free(vc_keymap);
936 vc_keymap = new_keymap;
937
938 free(vc_keymap_toggle);
939 vc_keymap_toggle = NULL;
940
941 modified = true;
942 } else
943 free(new_keymap);
944 }
945
946 if (modified) {
947 dbus_bool_t b;
948 DBusMessage *changed;
949 int r;
950
951 r = write_data_vconsole();
952 if (r < 0)
953 log_error("Failed to set virtual console keymap: %s", strerror(-r));
954
955 changed = bus_properties_changed_new(
956 "/org/freedesktop/locale1",
957 "org.freedesktop.locale1",
958 "VConsoleKeymap\0"
959 "VConsoleKeymapToggle\0");
960
961 if (!changed)
962 return -ENOMEM;
963
964 b = dbus_connection_send(connection, changed, NULL);
965 dbus_message_unref(changed);
966
967 if (!b)
968 return -ENOMEM;
969
970 return load_vconsole_keymap(connection, NULL);
971 }
972
973 return 0;
974}
975
976static int append_locale(DBusMessageIter *i, const char *property, void *userdata) {
977 int r, c = 0, p;
978 char **l;
979
980 l = new0(char*, _PROP_MAX+1);
981 if (!l)
982 return -ENOMEM;
983
984 for (p = 0; p < _PROP_MAX; p++) {
985 char *t;
986
987 if (isempty(data[p]))
988 continue;
989
990 if (asprintf(&t, "%s=%s", names[p], data[p]) < 0) {
991 strv_free(l);
992 return -ENOMEM;
993 }
994
995 l[c++] = t;
996 }
997
998 r = bus_property_append_strv(i, property, (void*) l);
999 strv_free(l);
1000
1001 return r;
1002}
1003
1004static DBusHandlerResult locale_message_handler(
1005 DBusConnection *connection,
1006 DBusMessage *message,
1007 void *userdata) {
1008
1009 const BusProperty properties[] = {
1010 { "org.freedesktop.locale1", "Locale", append_locale, "as", NULL },
1011 { "org.freedesktop.locale1", "X11Layout", bus_property_append_string, "s", x11_layout },
1012 { "org.freedesktop.locale1", "X11Model", bus_property_append_string, "s", x11_model },
1013 { "org.freedesktop.locale1", "X11Variant", bus_property_append_string, "s", x11_variant },
1014 { "org.freedesktop.locale1", "X11Options", bus_property_append_string, "s", x11_options },
1015 { "org.freedesktop.locale1", "VConsoleKeymap", bus_property_append_string, "s", vc_keymap },
1016 { "org.freedesktop.locale1", "VConsoleKeymapToggle", bus_property_append_string, "s", vc_keymap_toggle },
1017 { NULL, NULL, NULL, NULL, NULL }
1018 };
1019
1020 DBusMessage *reply = NULL, *changed = NULL;
1021 DBusError error;
1022 int r;
1023
1024 assert(connection);
1025 assert(message);
1026
1027 dbus_error_init(&error);
1028
1029 if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetLocale")) {
1030 char **l = NULL, **i;
1031 dbus_bool_t interactive;
1032 DBusMessageIter iter;
1033 bool modified = false;
1034 bool passed[_PROP_MAX];
1035 int p;
1036
1037 if (!dbus_message_iter_init(message, &iter))
1038 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1039
1040 r = bus_parse_strv_iter(&iter, &l);
1041 if (r < 0) {
1042 if (r == -ENOMEM)
1043 goto oom;
1044
1045 return bus_send_error_reply(connection, message, NULL, r);
1046 }
1047
1048 if (!dbus_message_iter_next(&iter) ||
1049 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
1050 strv_free(l);
1051 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1052 }
1053
1054 dbus_message_iter_get_basic(&iter, &interactive);
1055
1056 zero(passed);
1057
1058 /* Check whether a variable changed and if so valid */
1059 STRV_FOREACH(i, l) {
1060 bool valid = false;
1061
1062 for (p = 0; p < _PROP_MAX; p++) {
1063 size_t k;
1064
1065 k = strlen(names[p]);
1066 if (startswith(*i, names[p]) && (*i)[k] == '=') {
1067 valid = true;
1068 passed[p] = true;
1069
1070 if (!streq_ptr(*i + k + 1, data[p]))
1071 modified = true;
1072
1073 break;
1074 }
1075 }
1076
1077 if (!valid) {
1078 strv_free(l);
1079 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1080 }
1081 }
1082
1083 /* Check whether a variable is unset */
1084 if (!modified) {
1085 for (p = 0; p < _PROP_MAX; p++)
1086 if (!isempty(data[p]) && !passed[p]) {
1087 modified = true;
1088 break;
1089 }
1090 }
1091
1092 if (modified) {
1093
1094 r = verify_polkit(connection, message, "org.freedesktop.locale1.set-locale", interactive, &error);
1095 if (r < 0) {
1096 strv_free(l);
1097 return bus_send_error_reply(connection, message, &error, r);
1098 }
1099
1100 STRV_FOREACH(i, l) {
1101 for (p = 0; p < _PROP_MAX; p++) {
1102 size_t k;
1103
1104 k = strlen(names[p]);
1105 if (startswith(*i, names[p]) && (*i)[k] == '=') {
1106 char *t;
1107
1108 t = strdup(*i + k + 1);
1109 if (!t) {
1110 strv_free(l);
1111 goto oom;
1112 }
1113
1114 free(data[p]);
1115 data[p] = t;
1116
1117 break;
1118 }
1119 }
1120 }
1121
1122 strv_free(l);
1123
1124 for (p = 0; p < _PROP_MAX; p++) {
1125 if (passed[p])
1126 continue;
1127
1128 free(data[p]);
1129 data[p] = NULL;
1130 }
1131
1132 simplify();
1133
1134 r = write_data_locale();
1135 if (r < 0) {
1136 log_error("Failed to set locale: %s", strerror(-r));
1137 return bus_send_error_reply(connection, message, NULL, r);
1138 }
1139
1140 push_data(connection);
1141
1142 log_info("Changed locale information.");
1143
1144 changed = bus_properties_changed_new(
1145 "/org/freedesktop/locale1",
1146 "org.freedesktop.locale1",
1147 "Locale\0");
1148 if (!changed)
1149 goto oom;
1150 }
1151 } else if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetVConsoleKeyboard")) {
1152
1153 const char *keymap, *keymap_toggle;
1154 dbus_bool_t convert, interactive;
1155
1156 if (!dbus_message_get_args(
1157 message,
1158 &error,
1159 DBUS_TYPE_STRING, &keymap,
1160 DBUS_TYPE_STRING, &keymap_toggle,
1161 DBUS_TYPE_BOOLEAN, &convert,
1162 DBUS_TYPE_BOOLEAN, &interactive,
1163 DBUS_TYPE_INVALID))
1164 return bus_send_error_reply(connection, message, &error, -EINVAL);
1165
1166 if (isempty(keymap))
1167 keymap = NULL;
1168
1169 if (isempty(keymap_toggle))
1170 keymap_toggle = NULL;
1171
1172 if (!streq_ptr(keymap, vc_keymap) ||
1173 !streq_ptr(keymap_toggle, vc_keymap_toggle)) {
1174
1175 r = verify_polkit(connection, message, "org.freedesktop.locale1.set-keyboard", interactive, &error);
1176 if (r < 0)
1177 return bus_send_error_reply(connection, message, &error, r);
1178
1179 if (free_and_set(&vc_keymap, keymap) < 0 ||
1180 free_and_set(&vc_keymap_toggle, keymap_toggle) < 0)
1181 goto oom;
1182
1183 r = write_data_vconsole();
1184 if (r < 0) {
1185 log_error("Failed to set virtual console keymap: %s", strerror(-r));
1186 return bus_send_error_reply(connection, message, NULL, r);
1187 }
1188
1189 log_info("Changed virtual console keymap to '%s'", strempty(vc_keymap));
1190
1191 r = load_vconsole_keymap(connection, NULL);
1192 if (r < 0)
1193 log_error("Failed to request keymap reload: %s", strerror(-r));
1194
1195 changed = bus_properties_changed_new(
1196 "/org/freedesktop/locale1",
1197 "org.freedesktop.locale1",
1198 "VConsoleKeymap\0"
1199 "VConsoleKeymapToggle\0");
1200 if (!changed)
1201 goto oom;
1202
1203 if (convert) {
1204 r = convert_vconsole_to_x11(connection);
1205
1206 if (r < 0)
1207 log_error("Failed to convert keymap data: %s", strerror(-r));
1208 }
1209 }
1210
1211 } else if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetX11Keyboard")) {
1212
1213 const char *layout, *model, *variant, *options;
1214 dbus_bool_t convert, interactive;
1215
1216 if (!dbus_message_get_args(
1217 message,
1218 &error,
1219 DBUS_TYPE_STRING, &layout,
1220 DBUS_TYPE_STRING, &model,
1221 DBUS_TYPE_STRING, &variant,
1222 DBUS_TYPE_STRING, &options,
1223 DBUS_TYPE_BOOLEAN, &convert,
1224 DBUS_TYPE_BOOLEAN, &interactive,
1225 DBUS_TYPE_INVALID))
1226 return bus_send_error_reply(connection, message, &error, -EINVAL);
1227
1228 if (isempty(layout))
1229 layout = NULL;
1230
1231 if (isempty(model))
1232 model = NULL;
1233
1234 if (isempty(variant))
1235 variant = NULL;
1236
1237 if (isempty(options))
1238 options = NULL;
1239
1240 if (!streq_ptr(layout, x11_layout) ||
1241 !streq_ptr(model, x11_model) ||
1242 !streq_ptr(variant, x11_variant) ||
1243 !streq_ptr(options, x11_options)) {
1244
1245 r = verify_polkit(connection, message, "org.freedesktop.locale1.set-keyboard", interactive, &error);
1246 if (r < 0)
1247 return bus_send_error_reply(connection, message, &error, r);
1248
1249 if (free_and_set(&x11_layout, layout) < 0 ||
1250 free_and_set(&x11_model, model) < 0 ||
1251 free_and_set(&x11_variant, variant) < 0 ||
1252 free_and_set(&x11_options, options) < 0)
1253 goto oom;
1254
1255 r = write_data_x11();
1256 if (r < 0) {
1257 log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
1258 return bus_send_error_reply(connection, message, NULL, r);
1259 }
1260
1261 log_info("Changed X11 keyboard layout to '%s'", strempty(x11_layout));
1262
1263 changed = bus_properties_changed_new(
1264 "/org/freedesktop/locale1",
1265 "org.freedesktop.locale1",
1266 "X11Layout\0"
1267 "X11Model\0"
1268 "X11Variant\0"
1269 "X11Options\0");
1270 if (!changed)
1271 goto oom;
1272
1273 if (convert) {
1274 r = convert_x11_to_vconsole(connection);
1275
1276 if (r < 0)
1277 log_error("Failed to convert keymap data: %s", strerror(-r));
1278 }
1279 }
1280 } else
1281 return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
1282
1283
1284 if (!(reply = dbus_message_new_method_return(message)))
1285 goto oom;
1286
1287 if (!dbus_connection_send(connection, reply, NULL))
1288 goto oom;
1289
1290 dbus_message_unref(reply);
1291 reply = NULL;
1292
1293 if (changed) {
1294
1295 if (!dbus_connection_send(connection, changed, NULL))
1296 goto oom;
1297
1298 dbus_message_unref(changed);
1299 }
1300
1301 return DBUS_HANDLER_RESULT_HANDLED;
1302
1303oom:
1304 if (reply)
1305 dbus_message_unref(reply);
1306
1307 if (changed)
1308 dbus_message_unref(changed);
1309
1310 dbus_error_free(&error);
1311
1312 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1313}
1314
1315static int connect_bus(DBusConnection **_bus) {
1316 static const DBusObjectPathVTable locale_vtable = {
1317 .message_function = locale_message_handler
1318 };
1319 DBusError error;
1320 DBusConnection *bus = NULL;
1321 int r;
1322
1323 assert(_bus);
1324
1325 dbus_error_init(&error);
1326
1327 bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
1328 if (!bus) {
1329 log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
1330 r = -ECONNREFUSED;
1331 goto fail;
1332 }
1333
1334 dbus_connection_set_exit_on_disconnect(bus, FALSE);
1335
1336 if (!dbus_connection_register_object_path(bus, "/org/freedesktop/locale1", &locale_vtable, NULL) ||
1337 !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) {
1338 log_error("Not enough memory");
1339 r = -ENOMEM;
1340 goto fail;
1341 }
1342
1343 r = dbus_bus_request_name(bus, "org.freedesktop.locale1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
1344 if (dbus_error_is_set(&error)) {
1345 log_error("Failed to register name on bus: %s", bus_error_message(&error));
1346 r = -EEXIST;
1347 goto fail;
1348 }
1349
1350 if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
1351 log_error("Failed to acquire name.");
1352 r = -EEXIST;
1353 goto fail;
1354 }
1355
1356 if (_bus)
1357 *_bus = bus;
1358
1359 return 0;
1360
1361fail:
1362 dbus_connection_close(bus);
1363 dbus_connection_unref(bus);
1364
1365 dbus_error_free(&error);
1366
1367 return r;
1368}
1369
1370int main(int argc, char *argv[]) {
1371 int r;
1372 DBusConnection *bus = NULL;
1373 bool exiting = false;
1374
1375 log_set_target(LOG_TARGET_AUTO);
1376 log_parse_environment();
1377 log_open();
1378
1379 umask(0022);
1380
1381 if (argc == 2 && streq(argv[1], "--introspect")) {
1382 fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
1383 "<node>\n", stdout);
1384 fputs(locale_interface, stdout);
1385 fputs("</node>\n", stdout);
1386 return 0;
1387 }
1388
1389 if (argc != 1) {
1390 log_error("This program takes no arguments.");
1391 r = -EINVAL;
1392 goto finish;
1393 }
1394
1395 r = read_data();
1396 if (r < 0) {
1397 log_error("Failed to read locale data: %s", strerror(-r));
1398 goto finish;
1399 }
1400
1401 r = connect_bus(&bus);
1402 if (r < 0)
1403 goto finish;
1404
1405 remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC;
1406 for (;;) {
1407
1408 if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC)))
1409 break;
1410
1411 if (!exiting && remain_until < now(CLOCK_MONOTONIC)) {
1412 exiting = true;
1413 bus_async_unregister_and_exit(bus, "org.freedesktop.locale1");
1414 }
1415 }
1416
1417 r = 0;
1418
1419finish:
1420 free_data();
1421
1422 if (bus) {
1423 dbus_connection_flush(bus);
1424 dbus_connection_close(bus);
1425 dbus_connection_unref(bus);
1426 }
1427
1428 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1429}
Unnamed repository; edit this file 'description' to name the repository.