src/locale/localed.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2011 Lennart Poettering
   6   Copyright 2013 Kay Sievers
   7 ***/
   8
   9 #include <errno.h>
  10 #include <string.h>
  11 #include <unistd.h>
  12
  13 #if HAVE_XKBCOMMON
  14 #include <xkbcommon/xkbcommon.h>
  15 #include <dlfcn.h>
  16 #endif
  17
  18 #include "sd-bus.h"
  19
  20 #include "alloc-util.h"
  21 #include "bus-error.h"
  22 #include "bus-message.h"
  23 #include "bus-util.h"
  24 #include "def.h"
  25 #include "keymap-util.h"
  26 #include "locale-util.h"
  27 #include "macro.h"
  28 #include "path-util.h"
  29 #include "selinux-util.h"
  30 #include "string-util.h"
  31 #include "strv.h"
  32 #include "user-util.h"
  33
  34 static Hashmap *polkit_registry = NULL;
  35
  36 static int locale_update_system_manager(Context *c, sd_bus *bus) {
  37         _cleanup_free_ char **l_unset = NULL;
  38         _cleanup_strv_free_ char **l_set = NULL;
  39         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
  40         sd_bus_error error = SD_BUS_ERROR_NULL;
  41         unsigned c_set, c_unset, p;
  42         int r;
  43
  44         assert(bus);
  45
  46         l_unset = new0(char*, _VARIABLE_LC_MAX);
  47         if (!l_unset)
  48                 return -ENOMEM;
  49
  50         l_set = new0(char*, _VARIABLE_LC_MAX);
  51         if (!l_set)
  52                 return -ENOMEM;
  53
  54         for (p = 0, c_set = 0, c_unset = 0; p < _VARIABLE_LC_MAX; p++) {
  55                 const char *name;
  56
  57                 name = locale_variable_to_string(p);
  58                 assert(name);
  59
  60                 if (isempty(c->locale[p]))
  61                         l_unset[c_set++] = (char*) name;
  62                 else {
  63                         char *s;
  64
  65                         if (asprintf(&s, "%s=%s", name, c->locale[p]) < 0)
  66                                 return -ENOMEM;
  67
  68                         l_set[c_unset++] = s;
  69                 }
  70         }
  71
  72         assert(c_set + c_unset == _VARIABLE_LC_MAX);
  73         r = sd_bus_message_new_method_call(bus, &m,
  74                         "org.freedesktop.systemd1",
  75                         "/org/freedesktop/systemd1",
  76                         "org.freedesktop.systemd1.Manager",
  77                         "UnsetAndSetEnvironment");
  78         if (r < 0)
  79                 return r;
  80
  81         r = sd_bus_message_append_strv(m, l_unset);
  82         if (r < 0)
  83                 return r;
  84
  85         r = sd_bus_message_append_strv(m, l_set);
  86         if (r < 0)
  87                 return r;
  88
  89         r = sd_bus_call(bus, m, 0, &error, NULL);
  90         if (r < 0)
  91                 log_error_errno(r, "Failed to update the manager environment: %m");
  92
  93         return 0;
  94 }
  95
  96 static int vconsole_reload(sd_bus *bus) {
  97         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
  98         int r;
  99
 100         assert(bus);
 101
 102         r = sd_bus_call_method(bus,
 103                         "org.freedesktop.systemd1",
 104                         "/org/freedesktop/systemd1",
 105                         "org.freedesktop.systemd1.Manager",
 106                         "RestartUnit",
 107                         &error,
 108                         NULL,
 109                         "ss", "systemd-vconsole-setup.service", "replace");
 110
 111         if (r < 0)
 112                 log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
 113         return r;
 114 }
 115
 116 static int vconsole_convert_to_x11_and_emit(Context *c, sd_bus *bus) {
 117         int r;
 118
 119         assert(bus);
 120
 121         r = vconsole_convert_to_x11(c);
 122         if (r <= 0)
 123                 return r;
 124
 125         /* modified */
 126         r = x11_write_data(c);
 127         if (r < 0)
 128                 return log_error_errno(r, "Failed to write X11 keyboard layout: %m");
 129
 130         sd_bus_emit_properties_changed(bus,
 131                                        "/org/freedesktop/locale1",
 132                                        "org.freedesktop.locale1",
 133                                        "X11Layout", "X11Model", "X11Variant", "X11Options", NULL);
 134
 135         return 1;
 136 }
 137
 138 static int x11_convert_to_vconsole_and_emit(Context *c, sd_bus *bus) {
 139         int r;
 140
 141         assert(bus);
 142
 143         r = x11_convert_to_vconsole(c);
 144         if (r <= 0)
 145                 return r;
 146
 147         /* modified */
 148         r = vconsole_write_data(c);
 149         if (r < 0)
 150                 log_error_errno(r, "Failed to save virtual console keymap: %m");
 151
 152         sd_bus_emit_properties_changed(bus,
 153                                        "/org/freedesktop/locale1",
 154                                        "org.freedesktop.locale1",
 155                                        "VConsoleKeymap", "VConsoleKeymapToggle", NULL);
 156
 157         return vconsole_reload(bus);
 158 }
 159
 160 static int property_get_locale(
 161                 sd_bus *bus,
 162                 const char *path,
 163                 const char *interface,
 164                 const char *property,
 165                 sd_bus_message *reply,
 166                 void *userdata,
 167                 sd_bus_error *error) {
 168
 169         Context *c = userdata;
 170         _cleanup_strv_free_ char **l = NULL;
 171         int p, q;
 172
 173         l = new0(char*, _VARIABLE_LC_MAX+1);
 174         if (!l)
 175                 return -ENOMEM;
 176
 177         for (p = 0, q = 0; p < _VARIABLE_LC_MAX; p++) {
 178                 char *t;
 179                 const char *name;
 180
 181                 name = locale_variable_to_string(p);
 182                 assert(name);
 183
 184                 if (isempty(c->locale[p]))
 185                         continue;
 186
 187                 if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
 188                         return -ENOMEM;
 189
 190                 l[q++] = t;
 191         }
 192
 193         return sd_bus_message_append_strv(reply, l);
 194 }
 195
 196 static int method_set_locale(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 197         Context *c = userdata;
 198         _cleanup_strv_free_ char **l = NULL;
 199         char **i;
 200         const char *lang = NULL;
 201         int interactive;
 202         bool modified = false;
 203         bool have[_VARIABLE_LC_MAX] = {};
 204         int p;
 205         int r;
 206
 207         assert(m);
 208         assert(c);
 209
 210         r = bus_message_read_strv_extend(m, &l);
 211         if (r < 0)
 212                 return r;
 213
 214         r = sd_bus_message_read_basic(m, 'b', &interactive);
 215         if (r < 0)
 216                 return r;
 217
 218         /* Check whether a variable changed and if it is valid */
 219         STRV_FOREACH(i, l) {
 220                 bool valid = false;
 221
 222                 for (p = 0; p < _VARIABLE_LC_MAX; p++) {
 223                         size_t k;
 224                         const char *name;
 225
 226                         name = locale_variable_to_string(p);
 227                         assert(name);
 228
 229                         k = strlen(name);
 230                         if (startswith(*i, name) &&
 231                             (*i)[k] == '=' &&
 232                             locale_is_valid((*i) + k + 1)) {
 233                                 valid = true;
 234                                 have[p] = true;
 235
 236                                 if (p == VARIABLE_LANG)
 237                                         lang = (*i) + k + 1;
 238
 239                                 if (!streq_ptr(*i + k + 1, c->locale[p]))
 240                                         modified = true;
 241
 242                                 break;
 243                         }
 244                 }
 245
 246                 if (!valid)
 247                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Locale data.");
 248         }
 249
 250         /* If LANG was specified, but not LANGUAGE, check if we should
 251          * set it based on the language fallback table. */
 252         if (have[VARIABLE_LANG] && !have[VARIABLE_LANGUAGE]) {
 253                 _cleanup_free_ char *language = NULL;
 254
 255                 assert(lang);
 256
 257                 (void) find_language_fallback(lang, &language);
 258                 if (language) {
 259                         log_debug("Converted LANG=%s to LANGUAGE=%s", lang, language);
 260                         if (!streq_ptr(language, c->locale[VARIABLE_LANGUAGE])) {
 261                                 r = strv_extendf(&l, "LANGUAGE=%s", language);
 262                                 if (r < 0)
 263                                         return r;
 264
 265                                 have[VARIABLE_LANGUAGE] = true;
 266                                 modified = true;
 267                         }
 268                 }
 269         }
 270
 271         /* Check whether a variable is unset */
 272         if (!modified)
 273                 for (p = 0; p < _VARIABLE_LC_MAX; p++)
 274                         if (!isempty(c->locale[p]) && !have[p]) {
 275                                 modified = true;
 276                                 break;
 277                         }
 278
 279         if (modified) {
 280                 _cleanup_strv_free_ char **settings = NULL;
 281
 282                 r = bus_verify_polkit_async(
 283                                 m,
 284                                 CAP_SYS_ADMIN,
 285                                 "org.freedesktop.locale1.set-locale",
 286                                 NULL,
 287                                 interactive,
 288                                 UID_INVALID,
 289                                 &polkit_registry,
 290                                 error);
 291                 if (r < 0)
 292                         return r;
 293                 if (r == 0)
 294                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 295
 296                 STRV_FOREACH(i, l)
 297                         for (p = 0; p < _VARIABLE_LC_MAX; p++) {
 298                                 size_t k;
 299                                 const char *name;
 300
 301                                 name = locale_variable_to_string(p);
 302                                 assert(name);
 303
 304                                 k = strlen(name);
 305                                 if (startswith(*i, name) && (*i)[k] == '=') {
 306                                         r = free_and_strdup(&c->locale[p], *i + k + 1);
 307                                         if (r < 0)
 308                                                 return r;
 309                                         break;
 310                                 }
 311                         }
 312
 313                 for (p = 0; p < _VARIABLE_LC_MAX; p++) {
 314                         if (have[p])
 315                                 continue;
 316
 317                         c->locale[p] = mfree(c->locale[p]);
 318                 }
 319
 320                 locale_simplify(c);
 321
 322                 r = locale_write_data(c, &settings);
 323                 if (r < 0) {
 324                         log_error_errno(r, "Failed to set locale: %m");
 325                         return sd_bus_error_set_errnof(error, r, "Failed to set locale: %m");
 326                 }
 327
 328                 locale_update_system_manager(c, sd_bus_message_get_bus(m));
 329
 330                 if (settings) {
 331                         _cleanup_free_ char *line;
 332
 333                         line = strv_join(settings, ", ");
 334                         log_info("Changed locale to %s.", strnull(line));
 335                 } else
 336                         log_info("Changed locale to unset.");
 337
 338                 (void) sd_bus_emit_properties_changed(
 339                                 sd_bus_message_get_bus(m),
 340                                 "/org/freedesktop/locale1",
 341                                 "org.freedesktop.locale1",
 342                                 "Locale", NULL);
 343         } else
 344                 log_debug("Locale settings were not modified.");
 345
 346         return sd_bus_reply_method_return(m, NULL);
 347 }
 348
 349 static int method_set_vc_keyboard(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 350         Context *c = userdata;
 351         const char *keymap, *keymap_toggle;
 352         int convert, interactive;
 353         int r;
 354
 355         assert(m);
 356         assert(c);
 357
 358         r = sd_bus_message_read(m, "ssbb", &keymap, &keymap_toggle, &convert, &interactive);
 359         if (r < 0)
 360                 return r;
 361
 362         keymap = empty_to_null(keymap);
 363         keymap_toggle = empty_to_null(keymap_toggle);
 364
 365         if (!streq_ptr(keymap, c->vc_keymap) ||
 366             !streq_ptr(keymap_toggle, c->vc_keymap_toggle)) {
 367
 368                 if ((keymap && (!filename_is_valid(keymap) || !string_is_safe(keymap))) ||
 369                     (keymap_toggle && (!filename_is_valid(keymap_toggle) || !string_is_safe(keymap_toggle))))
 370                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Received invalid keymap data");
 371
 372                 r = bus_verify_polkit_async(
 373                                 m,
 374                                 CAP_SYS_ADMIN,
 375                                 "org.freedesktop.locale1.set-keyboard",
 376                                 NULL,
 377                                 interactive,
 378                                 UID_INVALID,
 379                                 &polkit_registry,
 380                                 error);
 381                 if (r < 0)
 382                         return r;
 383                 if (r == 0)
 384                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 385
 386                 if (free_and_strdup(&c->vc_keymap, keymap) < 0 ||
 387                     free_and_strdup(&c->vc_keymap_toggle, keymap_toggle) < 0)
 388                         return -ENOMEM;
 389
 390                 r = vconsole_write_data(c);
 391                 if (r < 0) {
 392                         log_error_errno(r, "Failed to set virtual console keymap: %m");
 393                         return sd_bus_error_set_errnof(error, r, "Failed to set virtual console keymap: %m");
 394                 }
 395
 396                 log_info("Changed virtual console keymap to '%s' toggle '%s'",
 397                          strempty(c->vc_keymap), strempty(c->vc_keymap_toggle));
 398
 399                 r = vconsole_reload(sd_bus_message_get_bus(m));
 400                 if (r < 0)
 401                         log_error_errno(r, "Failed to request keymap reload: %m");
 402
 403                 (void) sd_bus_emit_properties_changed(
 404                                 sd_bus_message_get_bus(m),
 405                                 "/org/freedesktop/locale1",
 406                                 "org.freedesktop.locale1",
 407                                 "VConsoleKeymap", "VConsoleKeymapToggle", NULL);
 408
 409                 if (convert) {
 410                         r = vconsole_convert_to_x11_and_emit(c, sd_bus_message_get_bus(m));
 411                         if (r < 0)
 412                                 log_error_errno(r, "Failed to convert keymap data: %m");
 413                 }
 414         }
 415
 416         return sd_bus_reply_method_return(m, NULL);
 417 }
 418
 419 #if HAVE_XKBCOMMON
 420
 421 _printf_(3, 0)
 422 static void log_xkb(struct xkb_context *ctx, enum xkb_log_level lvl, const char *format, va_list args) {
 423         const char *fmt;
 424
 425         fmt = strjoina("libxkbcommon: ", format);
 426 #pragma GCC diagnostic push
 427 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
 428         log_internalv(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, fmt, args);
 429 #pragma GCC diagnostic pop
 430 }
 431
 432 #define LOAD_SYMBOL(symbol, dl, name)                                   \
 433         ({                                                              \
 434                 (symbol) = (typeof(symbol)) dlvsym((dl), (name), "V_0.5.0"); \
 435                 (symbol) ? 0 : -EOPNOTSUPP;                             \
 436         })
 437
 438 static int verify_xkb_rmlvo(const char *model, const char *layout, const char *variant, const char *options) {
 439
 440         /* We dlopen() the library in order to make the dependency soft. The library (and what it pulls in) is huge
 441          * after all, hence let's support XKB maps when the library is around, and refuse otherwise. The function
 442          * pointers to the shared library are below: */
 443
 444         struct xkb_context* (*symbol_xkb_context_new)(enum xkb_context_flags flags) = NULL;
 445         void (*symbol_xkb_context_unref)(struct xkb_context *context) = NULL;
 446         void (*symbol_xkb_context_set_log_fn)(struct xkb_context *context, void (*log_fn)(struct xkb_context *context, enum xkb_log_level level, const char *format, va_list args)) = NULL;
 447         struct xkb_keymap* (*symbol_xkb_keymap_new_from_names)(struct xkb_context *context, const struct xkb_rule_names *names, enum xkb_keymap_compile_flags flags) = NULL;
 448         void (*symbol_xkb_keymap_unref)(struct xkb_keymap *keymap) = NULL;
 449
 450         const struct xkb_rule_names rmlvo = {
 451                 .model          = model,
 452                 .layout         = layout,
 453                 .variant        = variant,
 454                 .options        = options,
 455         };
 456         struct xkb_context *ctx = NULL;
 457         struct xkb_keymap *km = NULL;
 458         void *dl;
 459         int r;
 460
 461         /* Compile keymap from RMLVO information to check out its validity */
 462
 463         dl = dlopen("libxkbcommon.so.0", RTLD_LAZY);
 464         if (!dl)
 465                 return -EOPNOTSUPP;
 466
 467         r = LOAD_SYMBOL(symbol_xkb_context_new, dl, "xkb_context_new");
 468         if (r < 0)
 469                 goto finish;
 470
 471         r = LOAD_SYMBOL(symbol_xkb_context_unref, dl, "xkb_context_unref");
 472         if (r < 0)
 473                 goto finish;
 474
 475         r = LOAD_SYMBOL(symbol_xkb_context_set_log_fn, dl, "xkb_context_set_log_fn");
 476         if (r < 0)
 477                 goto finish;
 478
 479         r = LOAD_SYMBOL(symbol_xkb_keymap_new_from_names, dl, "xkb_keymap_new_from_names");
 480         if (r < 0)
 481                 goto finish;
 482
 483         r = LOAD_SYMBOL(symbol_xkb_keymap_unref, dl, "xkb_keymap_unref");
 484         if (r < 0)
 485                 goto finish;
 486
 487         ctx = symbol_xkb_context_new(XKB_CONTEXT_NO_ENVIRONMENT_NAMES);
 488         if (!ctx) {
 489                 r = -ENOMEM;
 490                 goto finish;
 491         }
 492
 493         symbol_xkb_context_set_log_fn(ctx, log_xkb);
 494
 495         km = symbol_xkb_keymap_new_from_names(ctx, &rmlvo, XKB_KEYMAP_COMPILE_NO_FLAGS);
 496         if (!km) {
 497                 r = -EINVAL;
 498                 goto finish;
 499         }
 500
 501         r = 0;
 502
 503 finish:
 504         if (symbol_xkb_keymap_unref && km)
 505                 symbol_xkb_keymap_unref(km);
 506
 507         if (symbol_xkb_context_unref && ctx)
 508                 symbol_xkb_context_unref(ctx);
 509
 510         (void) dlclose(dl);
 511         return r;
 512 }
 513
 514 #else
 515
 516 static int verify_xkb_rmlvo(const char *model, const char *layout, const char *variant, const char *options) {
 517         return 0;
 518 }
 519
 520 #endif
 521
 522 static int method_set_x11_keyboard(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 523         Context *c = userdata;
 524         const char *layout, *model, *variant, *options;
 525         int convert, interactive;
 526         int r;
 527
 528         assert(m);
 529         assert(c);
 530
 531         r = sd_bus_message_read(m, "ssssbb", &layout, &model, &variant, &options, &convert, &interactive);
 532         if (r < 0)
 533                 return r;
 534
 535         layout = empty_to_null(layout);
 536         model = empty_to_null(model);
 537         variant = empty_to_null(variant);
 538         options = empty_to_null(options);
 539
 540         if (!streq_ptr(layout, c->x11_layout) ||
 541             !streq_ptr(model, c->x11_model) ||
 542             !streq_ptr(variant, c->x11_variant) ||
 543             !streq_ptr(options, c->x11_options)) {
 544
 545                 if ((layout && !string_is_safe(layout)) ||
 546                     (model && !string_is_safe(model)) ||
 547                     (variant && !string_is_safe(variant)) ||
 548                     (options && !string_is_safe(options)))
 549                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Received invalid keyboard data");
 550
 551                 r = bus_verify_polkit_async(
 552                                 m,
 553                                 CAP_SYS_ADMIN,
 554                                 "org.freedesktop.locale1.set-keyboard",
 555                                 NULL,
 556                                 interactive,
 557                                 UID_INVALID,
 558                                 &polkit_registry,
 559                                 error);
 560                 if (r < 0)
 561                         return r;
 562                 if (r == 0)
 563                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 564
 565                 r = verify_xkb_rmlvo(model, layout, variant, options);
 566                 if (r < 0) {
 567                         log_error_errno(r, "Cannot compile XKB keymap for new x11 keyboard layout ('%s' / '%s' / '%s' / '%s'): %m",
 568                                         strempty(model), strempty(layout), strempty(variant), strempty(options));
 569
 570                         if (r == -EOPNOTSUPP)
 571                                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Local keyboard configuration not supported on this system.");
 572
 573                         return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Specified keymap cannot be compiled, refusing as invalid.");
 574                 }
 575
 576                 if (free_and_strdup(&c->x11_layout, layout) < 0 ||
 577                     free_and_strdup(&c->x11_model, model) < 0 ||
 578                     free_and_strdup(&c->x11_variant, variant) < 0 ||
 579                     free_and_strdup(&c->x11_options, options) < 0)
 580                         return -ENOMEM;
 581
 582                 r = x11_write_data(c);
 583                 if (r < 0) {
 584                         log_error_errno(r, "Failed to set X11 keyboard layout: %m");
 585                         return sd_bus_error_set_errnof(error, r, "Failed to set X11 keyboard layout: %m");
 586                 }
 587
 588                 log_info("Changed X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'",
 589                          strempty(c->x11_layout),
 590                          strempty(c->x11_model),
 591                          strempty(c->x11_variant),
 592                          strempty(c->x11_options));
 593
 594                 (void) sd_bus_emit_properties_changed(
 595                                 sd_bus_message_get_bus(m),
 596                                 "/org/freedesktop/locale1",
 597                                 "org.freedesktop.locale1",
 598                                 "X11Layout", "X11Model", "X11Variant", "X11Options", NULL);
 599
 600                 if (convert) {
 601                         r = x11_convert_to_vconsole_and_emit(c, sd_bus_message_get_bus(m));
 602                         if (r < 0)
 603                                 log_error_errno(r, "Failed to convert keymap data: %m");
 604                 }
 605         }
 606
 607         return sd_bus_reply_method_return(m, NULL);
 608 }
 609
 610 static const sd_bus_vtable locale_vtable[] = {
 611         SD_BUS_VTABLE_START(0),
 612         SD_BUS_PROPERTY("Locale", "as", property_get_locale, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 613         SD_BUS_PROPERTY("X11Layout", "s", NULL, offsetof(Context, x11_layout), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 614         SD_BUS_PROPERTY("X11Model", "s", NULL, offsetof(Context, x11_model), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 615         SD_BUS_PROPERTY("X11Variant", "s", NULL, offsetof(Context, x11_variant), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 616         SD_BUS_PROPERTY("X11Options", "s", NULL, offsetof(Context, x11_options), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 617         SD_BUS_PROPERTY("VConsoleKeymap", "s", NULL, offsetof(Context, vc_keymap), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 618         SD_BUS_PROPERTY("VConsoleKeymapToggle", "s", NULL, offsetof(Context, vc_keymap_toggle), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 619         SD_BUS_METHOD("SetLocale", "asb", NULL, method_set_locale, SD_BUS_VTABLE_UNPRIVILEGED),
 620         SD_BUS_METHOD("SetVConsoleKeyboard", "ssbb", NULL, method_set_vc_keyboard, SD_BUS_VTABLE_UNPRIVILEGED),
 621         SD_BUS_METHOD("SetX11Keyboard", "ssssbb", NULL, method_set_x11_keyboard, SD_BUS_VTABLE_UNPRIVILEGED),
 622         SD_BUS_VTABLE_END
 623 };
 624
 625 static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
 626         _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
 627         int r;
 628
 629         assert(c);
 630         assert(event);
 631         assert(_bus);
 632
 633         r = sd_bus_default_system(&bus);
 634         if (r < 0)
 635                 return log_error_errno(r, "Failed to get system bus connection: %m");
 636
 637         r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/locale1", "org.freedesktop.locale1", locale_vtable, c);
 638         if (r < 0)
 639                 return log_error_errno(r, "Failed to register object: %m");
 640
 641         r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.locale1", 0, NULL, NULL);
 642         if (r < 0)
 643                 return log_error_errno(r, "Failed to request name: %m");
 644
 645         r = sd_bus_attach_event(bus, event, 0);
 646         if (r < 0)
 647                 return log_error_errno(r, "Failed to attach bus to event loop: %m");
 648
 649         *_bus = TAKE_PTR(bus);
 650
 651         return 0;
 652 }
 653
 654 int main(int argc, char *argv[]) {
 655         _cleanup_(context_free) Context context = {};
 656         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
 657         _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
 658         int r;
 659
 660         log_set_target(LOG_TARGET_AUTO);
 661         log_parse_environment();
 662         log_open();
 663
 664         umask(0022);
 665         mac_selinux_init();
 666
 667         if (argc != 1) {
 668                 log_error("This program takes no arguments.");
 669                 r = -EINVAL;
 670                 goto finish;
 671         }
 672
 673         r = sd_event_default(&event);
 674         if (r < 0) {
 675                 log_error_errno(r, "Failed to allocate event loop: %m");
 676                 goto finish;
 677         }
 678
 679         sd_event_set_watchdog(event, true);
 680
 681         r = connect_bus(&context, event, &bus);
 682         if (r < 0)
 683                 goto finish;
 684
 685         r = context_read_data(&context);
 686         if (r < 0) {
 687                 log_error_errno(r, "Failed to read locale data: %m");
 688                 goto finish;
 689         }
 690
 691         r = bus_event_loop_with_idle(event, bus, "org.freedesktop.locale1", DEFAULT_EXIT_USEC, NULL, NULL);
 692         if (r < 0)
 693                 log_error_errno(r, "Failed to run event loop: %m");
 694
 695 finish:
 696         bus_verify_polkit_async_registry_free(polkit_registry);
 697
 698         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 699 }