/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2011 Lennart Poettering Copyright 2013 Kay Sievers systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <errno.h> #include <string.h> #include <unistd.h> #include "sd-bus.h" #include "util.h" #include "mkdir.h" #include "strv.h" #include "def.h" #include "env-util.h" #include "fileio.h" #include "fileio-label.h" #include "bus-util.h" #include "bus-error.h" #include "bus-message.h" #include "event-util.h" #include "locale-util.h" #include "selinux-util.h" #ifdef HAVE_XKBCOMMON #include <xkbcommon/xkbcommon.h> #endif enum { /* We don't list LC_ALL here on purpose. People should be * using LANG instead. */ LOCALE_LANG, LOCALE_LANGUAGE, LOCALE_LC_CTYPE, LOCALE_LC_NUMERIC, LOCALE_LC_TIME, LOCALE_LC_COLLATE, LOCALE_LC_MONETARY, LOCALE_LC_MESSAGES, LOCALE_LC_PAPER, LOCALE_LC_NAME, LOCALE_LC_ADDRESS, LOCALE_LC_TELEPHONE, LOCALE_LC_MEASUREMENT, LOCALE_LC_IDENTIFICATION, _LOCALE_MAX }; static const char * const names[_LOCALE_MAX] = { [LOCALE_LANG] = "LANG", [LOCALE_LANGUAGE] = "LANGUAGE", [LOCALE_LC_CTYPE] = "LC_CTYPE", [LOCALE_LC_NUMERIC] = "LC_NUMERIC", [LOCALE_LC_TIME] = "LC_TIME", [LOCALE_LC_COLLATE] = "LC_COLLATE", [LOCALE_LC_MONETARY] = "LC_MONETARY", [LOCALE_LC_MESSAGES] = "LC_MESSAGES", [LOCALE_LC_PAPER] = "LC_PAPER", [LOCALE_LC_NAME] = "LC_NAME", [LOCALE_LC_ADDRESS] = "LC_ADDRESS", [LOCALE_LC_TELEPHONE] = "LC_TELEPHONE", [LOCALE_LC_MEASUREMENT] = "LC_MEASUREMENT", [LOCALE_LC_IDENTIFICATION] = "LC_IDENTIFICATION" }; typedef struct Context { char *locale[_LOCALE_MAX]; char *x11_layout; char *x11_model; char *x11_variant; char *x11_options; char *vc_keymap; char *vc_keymap_toggle; Hashmap *polkit_registry; } Context; static const char* nonempty(const char *s) { return isempty(s) ? NULL : s; } static void free_and_replace(char **s, char *v) { free(*s); *s = v; } static bool startswith_comma(const char *s, const char *prefix) { const char *t; return s && (t = startswith(s, prefix)) && (*t == ','); } static void context_free_x11(Context *c) { free_and_replace(&c->x11_layout, NULL); free_and_replace(&c->x11_model, NULL); free_and_replace(&c->x11_variant, NULL); free_and_replace(&c->x11_options, NULL); } static void context_free_vconsole(Context *c) { free_and_replace(&c->vc_keymap, NULL); free_and_replace(&c->vc_keymap_toggle, NULL); } static void context_free_locale(Context *c) { int p; for (p = 0; p < _LOCALE_MAX; p++) free_and_replace(&c->locale[p], NULL); } static void context_free(Context *c) { context_free_locale(c); context_free_x11(c); context_free_vconsole(c); bus_verify_polkit_async_registry_free(c->polkit_registry); }; static void locale_simplify(Context *c) { int p; for (p = LOCALE_LANG+1; p < _LOCALE_MAX; p++) if (isempty(c->locale[p]) || streq_ptr(c->locale[LOCALE_LANG], c->locale[p])) free_and_replace(&c->locale[p], NULL); } static int locale_read_data(Context *c) { int r; context_free_locale(c); r = parse_env_file("/etc/locale.conf", NEWLINE, "LANG", &c->locale[LOCALE_LANG], "LANGUAGE", &c->locale[LOCALE_LANGUAGE], "LC_CTYPE", &c->locale[LOCALE_LC_CTYPE], "LC_NUMERIC", &c->locale[LOCALE_LC_NUMERIC], "LC_TIME", &c->locale[LOCALE_LC_TIME], "LC_COLLATE", &c->locale[LOCALE_LC_COLLATE], "LC_MONETARY", &c->locale[LOCALE_LC_MONETARY], "LC_MESSAGES", &c->locale[LOCALE_LC_MESSAGES], "LC_PAPER", &c->locale[LOCALE_LC_PAPER], "LC_NAME", &c->locale[LOCALE_LC_NAME], "LC_ADDRESS", &c->locale[LOCALE_LC_ADDRESS], "LC_TELEPHONE", &c->locale[LOCALE_LC_TELEPHONE], "LC_MEASUREMENT", &c->locale[LOCALE_LC_MEASUREMENT], "LC_IDENTIFICATION", &c->locale[LOCALE_LC_IDENTIFICATION], NULL); if (r == -ENOENT) { int p; /* Fill in what we got passed from systemd. */ for (p = 0; p < _LOCALE_MAX; p++) { assert(names[p]); r = free_and_strdup(&c->locale[p], nonempty(getenv(names[p]))); if (r < 0) return r; } r = 0; } locale_simplify(c); return r; } static int vconsole_read_data(Context *c) { int r; context_free_vconsole(c); r = parse_env_file("/etc/vconsole.conf", NEWLINE, "KEYMAP", &c->vc_keymap, "KEYMAP_TOGGLE", &c->vc_keymap_toggle, NULL); if (r < 0 && r != -ENOENT) return r; return 0; } static int x11_read_data(Context *c) { _cleanup_fclose_ FILE *f; char line[LINE_MAX]; bool in_section = false; int r; context_free_x11(c); f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re"); if (!f) return errno == ENOENT ? 0 : -errno; while (fgets(line, sizeof(line), f)) { char *l; char_array_0(line); l = strstrip(line); if (l[0] == 0 || l[0] == '#') continue; if (in_section && first_word(l, "Option")) { _cleanup_strv_free_ char **a = NULL; r = strv_split_quoted(&a, l, 0); if (r < 0) return r; if (strv_length(a) == 3) { if (streq(a[1], "XkbLayout")) { free_and_replace(&c->x11_layout, a[2]); a[2] = NULL; } else if (streq(a[1], "XkbModel")) { free_and_replace(&c->x11_model, a[2]); a[2] = NULL; } else if (streq(a[1], "XkbVariant")) { free_and_replace(&c->x11_variant, a[2]); a[2] = NULL; } else if (streq(a[1], "XkbOptions")) { free_and_replace(&c->x11_options, a[2]); a[2] = NULL; } } } else if (!in_section && first_word(l, "Section")) { _cleanup_strv_free_ char **a = NULL; r = strv_split_quoted(&a, l, 0); if (r < 0) return -ENOMEM; if (strv_length(a) == 2 && streq(a[1], "InputClass")) in_section = true; } else if (in_section && first_word(l, "EndSection")) in_section = false; } return 0; } static int context_read_data(Context *c) { int r, q, p; r = locale_read_data(c); q = vconsole_read_data(c); p = x11_read_data(c); return r < 0 ? r : q < 0 ? q : p; } static int locale_write_data(Context *c, char ***settings) { int r, p; _cleanup_strv_free_ char **l = NULL; /* Set values will be returned as strv in *settings on success. */ r = load_env_file(NULL, "/etc/locale.conf", NULL, &l); if (r < 0 && r != -ENOENT) return r; for (p = 0; p < _LOCALE_MAX; p++) { _cleanup_free_ char *t = NULL; char **u; assert(names[p]); if (isempty(c->locale[p])) { l = strv_env_unset(l, names[p]); continue; } if (asprintf(&t, "%s=%s", names[p], c->locale[p]) < 0) return -ENOMEM; u = strv_env_set(l, t); if (!u) return -ENOMEM; strv_free(l); l = u; } if (strv_isempty(l)) { if (unlink("/etc/locale.conf") < 0) return errno == ENOENT ? 0 : -errno; return 0; } r = write_env_file_label("/etc/locale.conf", l); if (r < 0) return r; *settings = l; l = NULL; return 0; } static int locale_update_system_manager(Context *c, sd_bus *bus) { _cleanup_free_ char **l_unset = NULL; _cleanup_strv_free_ char **l_set = NULL; _cleanup_bus_message_unref_ sd_bus_message *m = NULL; sd_bus_error error = SD_BUS_ERROR_NULL; unsigned c_set, c_unset, p; int r; assert(bus); l_unset = new0(char*, _LOCALE_MAX); if (!l_unset) return -ENOMEM; l_set = new0(char*, _LOCALE_MAX); if (!l_set) return -ENOMEM; for (p = 0, c_set = 0, c_unset = 0; p < _LOCALE_MAX; p++) { assert(names[p]); if (isempty(c->locale[p])) l_unset[c_set++] = (char*) names[p]; else { char *s; if (asprintf(&s, "%s=%s", names[p], c->locale[p]) < 0) return -ENOMEM; l_set[c_unset++] = s; } } assert(c_set + c_unset == _LOCALE_MAX); r = sd_bus_message_new_method_call(bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnsetAndSetEnvironment"); if (r < 0) return r; r = sd_bus_message_append_strv(m, l_unset); if (r < 0) return r; r = sd_bus_message_append_strv(m, l_set); if (r < 0) return r; r = sd_bus_call(bus, m, 0, &error, NULL); if (r < 0) log_error_errno(r, "Failed to update the manager environment: %m"); return 0; } static int vconsole_write_data(Context *c) { int r; _cleanup_strv_free_ char **l = NULL; r = load_env_file(NULL, "/etc/vconsole.conf", NULL, &l); if (r < 0 && r != -ENOENT) return r; if (isempty(c->vc_keymap)) l = strv_env_unset(l, "KEYMAP"); else { _cleanup_free_ char *s = NULL; char **u; s = strappend("KEYMAP=", c->vc_keymap); if (!s) return -ENOMEM; u = strv_env_set(l, s); if (!u) return -ENOMEM; strv_free(l); l = u; } if (isempty(c->vc_keymap_toggle)) l = strv_env_unset(l, "KEYMAP_TOGGLE"); else { _cleanup_free_ char *s = NULL; char **u; s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle); if (!s) return -ENOMEM; u = strv_env_set(l, s); if (!u) return -ENOMEM; strv_free(l); l = u; } if (strv_isempty(l)) { if (unlink("/etc/vconsole.conf") < 0) return errno == ENOENT ? 0 : -errno; return 0; } return write_env_file_label("/etc/vconsole.conf", l); } static int x11_write_data(Context *c) { _cleanup_fclose_ FILE *f = NULL; _cleanup_free_ char *temp_path = NULL; int r; if (isempty(c->x11_layout) && isempty(c->x11_model) && isempty(c->x11_variant) && isempty(c->x11_options)) { if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) return errno == ENOENT ? 0 : -errno; return 0; } mkdir_p_label("/etc/X11/xorg.conf.d", 0755); r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path); if (r < 0) return r; fchmod(fileno(f), 0644); fputs("# Read and parsed by systemd-localed. It's probably wise not to edit this file\n" "# manually too freely.\n" "Section \"InputClass\"\n" " Identifier \"system-keyboard\"\n" " MatchIsKeyboard \"on\"\n", f); if (!isempty(c->x11_layout)) fprintf(f, " Option \"XkbLayout\" \"%s\"\n", c->x11_layout); if (!isempty(c->x11_model)) fprintf(f, " Option \"XkbModel\" \"%s\"\n", c->x11_model); if (!isempty(c->x11_variant)) fprintf(f, " Option \"XkbVariant\" \"%s\"\n", c->x11_variant); if (!isempty(c->x11_options)) fprintf(f, " Option \"XkbOptions\" \"%s\"\n", c->x11_options); fputs("EndSection\n", f); fflush(f); if (ferror(f) || rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) { r = -errno; unlink("/etc/X11/xorg.conf.d/00-keyboard.conf"); unlink(temp_path); return r; } else return 0; } static int vconsole_reload(sd_bus *bus) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); r = sd_bus_call_method(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "RestartUnit", &error, NULL, "ss", "systemd-vconsole-setup.service", "replace"); if (r < 0) log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); return r; } static const char* strnulldash(const char *s) { return isempty(s) || streq(s, "-") ? NULL : s; } static int read_next_mapping(const char* filename, unsigned min_fields, unsigned max_fields, FILE *f, unsigned *n, char ***a) { assert(f); assert(n); assert(a); for (;;) { char line[LINE_MAX]; char *l, **b; int r; size_t length; errno = 0; if (!fgets(line, sizeof(line), f)) { if (ferror(f)) return errno ? -errno : -EIO; return 0; } (*n) ++; l = strstrip(line); if (l[0] == 0 || l[0] == '#') continue; r = strv_split_quoted(&b, l, 0); if (r < 0) return r; length = strv_length(b); if (length < min_fields || length > max_fields) { log_error("Invalid line %s:%u, ignoring.", filename, *n); strv_free(b); continue; } *a = b; return 1; } } static int vconsole_convert_to_x11(Context *c, sd_bus *bus) { bool modified = false; assert(bus); if (isempty(c->vc_keymap)) { modified = !isempty(c->x11_layout) || !isempty(c->x11_model) || !isempty(c->x11_variant) || !isempty(c->x11_options); context_free_x11(c); } else { _cleanup_fclose_ FILE *f = NULL; unsigned n = 0; f = fopen(SYSTEMD_KBD_MODEL_MAP, "re"); if (!f) return -errno; for (;;) { _cleanup_strv_free_ char **a = NULL; int r; r = read_next_mapping(SYSTEMD_KBD_MODEL_MAP, 5, UINT_MAX, f, &n, &a); if (r < 0) return r; if (r == 0) break; if (!streq(c->vc_keymap, a[0])) continue; if (!streq_ptr(c->x11_layout, strnulldash(a[1])) || !streq_ptr(c->x11_model, strnulldash(a[2])) || !streq_ptr(c->x11_variant, strnulldash(a[3])) || !streq_ptr(c->x11_options, strnulldash(a[4]))) { if (free_and_strdup(&c->x11_layout, strnulldash(a[1])) < 0 || free_and_strdup(&c->x11_model, strnulldash(a[2])) < 0 || free_and_strdup(&c->x11_variant, strnulldash(a[3])) < 0 || free_and_strdup(&c->x11_options, strnulldash(a[4])) < 0) return -ENOMEM; modified = true; } break; } } if (modified) { int r; r = x11_write_data(c); if (r < 0) return log_error_errno(r, "Failed to set X11 keyboard layout: %m"); log_info("Changed X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'", strempty(c->x11_layout), strempty(c->x11_model), strempty(c->x11_variant), strempty(c->x11_options)); sd_bus_emit_properties_changed(bus, "/org/freedesktop/locale1", "org.freedesktop.locale1", "X11Layout", "X11Model", "X11Variant", "X11Options", NULL); } else log_debug("X11 keyboard layout was not modified."); return 0; } static int find_converted_keymap(const char *x11_layout, const char *x11_variant, char **new_keymap) { const char *dir; _cleanup_free_ char *n; if (x11_variant) n = strjoin(x11_layout, "-", x11_variant, NULL); else n = strdup(x11_layout); if (!n) return -ENOMEM; NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) { _cleanup_free_ char *p = NULL, *pz = NULL; bool uncompressed; p = strjoin(dir, "xkb/", n, ".map", NULL); pz = strjoin(dir, "xkb/", n, ".map.gz", NULL); if (!p || !pz) return -ENOMEM; uncompressed = access(p, F_OK) == 0; if (uncompressed || access(pz, F_OK) == 0) { log_debug("Found converted keymap %s at %s", n, uncompressed ? p : pz); *new_keymap = n; n = NULL; return 1; } } return 0; } static int find_legacy_keymap(Context *c, char **new_keymap) { _cleanup_fclose_ FILE *f; unsigned n = 0; unsigned best_matching = 0; int r; f = fopen(SYSTEMD_KBD_MODEL_MAP, "re"); if (!f) return -errno; for (;;) { _cleanup_strv_free_ char **a = NULL; unsigned matching = 0; r = read_next_mapping(SYSTEMD_KBD_MODEL_MAP, 5, UINT_MAX, f, &n, &a); if (r < 0) return r; if (r == 0) break; /* Determine how well matching this entry is */ if (streq_ptr(c->x11_layout, a[1])) /* If we got an exact match, this is best */ matching = 10; else { /* We have multiple X layouts, look for an * entry that matches our key with everything * but the first layout stripped off. */ if (startswith_comma(c->x11_layout, a[1])) matching = 5; else { char *x; /* If that didn't work, strip off the * other layouts from the entry, too */ x = strndupa(a[1], strcspn(a[1], ",")); if (startswith_comma(c->x11_layout, x)) matching = 1; } } if (matching > 0) { if (isempty(c->x11_model) || streq_ptr(c->x11_model, a[2])) { matching++; if (streq_ptr(c->x11_variant, a[3])) { matching++; if (streq_ptr(c->x11_options, a[4])) matching++; } } } /* The best matching entry so far, then let's save that */ if (matching >= MAX(best_matching, 1u)) { log_debug("Found legacy keymap %s with score %u", a[0], matching); if (matching > best_matching) { best_matching = matching; r = free_and_strdup(new_keymap, a[0]); if (r < 0) return r; } } } if (best_matching < 10 && c->x11_layout) { /* The best match is only the first part of the X11 * keymap. Check if we have a converted map which * matches just the first layout. */ char *l, *v = NULL, *converted; l = strndupa(c->x11_layout, strcspn(c->x11_layout, ",")); if (c->x11_variant) v = strndupa(c->x11_variant, strcspn(c->x11_variant, ",")); r = find_converted_keymap(l, v, &converted); if (r < 0) return r; if (r > 0) free_and_replace(new_keymap, converted); } return 0; } static int find_language_fallback(const char *lang, char **language) { _cleanup_fclose_ FILE *f = NULL; unsigned n = 0; assert(language); f = fopen(SYSTEMD_LANGUAGE_FALLBACK_MAP, "re"); if (!f) return -errno; for (;;) { _cleanup_strv_free_ char **a = NULL; int r; r = read_next_mapping(SYSTEMD_LANGUAGE_FALLBACK_MAP, 2, 2, f, &n, &a); if (r <= 0) return r; if (streq(lang, a[0])) { assert(strv_length(a) == 2); *language = a[1]; a[1] = NULL; return 1; } } assert_not_reached("should not be here"); } static int x11_convert_to_vconsole(Context *c, sd_bus *bus) { bool modified = false; int r; assert(bus); if (isempty(c->x11_layout)) { modified = !isempty(c->vc_keymap) || !isempty(c->vc_keymap_toggle); context_free_x11(c); } else { char *new_keymap = NULL; r = find_converted_keymap(c->x11_layout, c->x11_variant, &new_keymap); if (r < 0) return r; else if (r == 0) { r = find_legacy_keymap(c, &new_keymap); if (r < 0) return r; } if (!streq_ptr(c->vc_keymap, new_keymap)) { free_and_replace(&c->vc_keymap, new_keymap); free_and_replace(&c->vc_keymap_toggle, NULL); modified = true; } else free(new_keymap); } if (modified) { r = vconsole_write_data(c); if (r < 0) log_error_errno(r, "Failed to set virtual console keymap: %m"); log_info("Changed virtual console keymap to '%s' toggle '%s'", strempty(c->vc_keymap), strempty(c->vc_keymap_toggle)); sd_bus_emit_properties_changed(bus, "/org/freedesktop/locale1", "org.freedesktop.locale1", "VConsoleKeymap", "VConsoleKeymapToggle", NULL); return vconsole_reload(bus); } else log_debug("Virtual console keymap was not modified."); return 0; } static int property_get_locale( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { Context *c = userdata; _cleanup_strv_free_ char **l = NULL; int p, q; l = new0(char*, _LOCALE_MAX+1); if (!l) return -ENOMEM; for (p = 0, q = 0; p < _LOCALE_MAX; p++) { char *t; if (isempty(c->locale[p])) continue; if (asprintf(&t, "%s=%s", names[p], c->locale[p]) < 0) return -ENOMEM; l[q++] = t; } return sd_bus_message_append_strv(reply, l); } static int method_set_locale(sd_bus_message *m, void *userdata, sd_bus_error *error) { Context *c = userdata; _cleanup_strv_free_ char **l = NULL; char **i; const char *lang = NULL; int interactive; bool modified = false; bool have[_LOCALE_MAX] = {}; int p; int r; assert(m); assert(c); r = bus_message_read_strv_extend(m, &l); if (r < 0) return r; r = sd_bus_message_read_basic(m, 'b', &interactive); if (r < 0) return r; /* Check whether a variable changed and if it is valid */ STRV_FOREACH(i, l) { bool valid = false; for (p = 0; p < _LOCALE_MAX; p++) { size_t k; k = strlen(names[p]); if (startswith(*i, names[p]) && (*i)[k] == '=' && locale_is_valid((*i) + k + 1)) { valid = true; have[p] = true; if (p == LOCALE_LANG) lang = (*i) + k + 1; if (!streq_ptr(*i + k + 1, c->locale[p])) modified = true; break; } } if (!valid) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Locale data."); } /* If LANG was specified, but not LANGUAGE, check if we should * set it based on the language fallback table. */ if (have[LOCALE_LANG] && !have[LOCALE_LANGUAGE]) { _cleanup_free_ char *language = NULL; assert(lang); (void) find_language_fallback(lang, &language); if (language) { log_debug("Converted LANG=%s to LANGUAGE=%s", lang, language); if (!streq_ptr(language, c->locale[LOCALE_LANGUAGE])) { r = strv_extendf(&l, "LANGUAGE=%s", language); if (r < 0) return r; have[LOCALE_LANGUAGE] = true; modified = true; } } } /* Check whether a variable is unset */ if (!modified) for (p = 0; p < _LOCALE_MAX; p++) if (!isempty(c->locale[p]) && !have[p]) { modified = true; break; } if (modified) { _cleanup_strv_free_ char **settings = NULL; r = bus_verify_polkit_async( m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-locale", interactive, UID_INVALID, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ STRV_FOREACH(i, l) for (p = 0; p < _LOCALE_MAX; p++) { size_t k; k = strlen(names[p]); if (startswith(*i, names[p]) && (*i)[k] == '=') { r = free_and_strdup(&c->locale[p], *i + k + 1); if (r < 0) return r; break; } } for (p = 0; p < _LOCALE_MAX; p++) { if (have[p]) continue; free_and_replace(&c->locale[p], NULL); } locale_simplify(c); r = locale_write_data(c, &settings); if (r < 0) { log_error_errno(r, "Failed to set locale: %m"); return sd_bus_error_set_errnof(error, r, "Failed to set locale: %s", strerror(-r)); } locale_update_system_manager(c, sd_bus_message_get_bus(m)); if (settings) { _cleanup_free_ char *line; line = strv_join(settings, ", "); log_info("Changed locale to %s.", strnull(line)); } else log_info("Changed locale to unset."); (void) sd_bus_emit_properties_changed( sd_bus_message_get_bus(m), "/org/freedesktop/locale1", "org.freedesktop.locale1", "Locale", NULL); } else log_debug("Locale settings were not modified."); return sd_bus_reply_method_return(m, NULL); } static int method_set_vc_keyboard(sd_bus_message *m, void *userdata, sd_bus_error *error) { Context *c = userdata; const char *keymap, *keymap_toggle; int convert, interactive; int r; assert(m); assert(c); r = sd_bus_message_read(m, "ssbb", &keymap, &keymap_toggle, &convert, &interactive); if (r < 0) return r; if (isempty(keymap)) keymap = NULL; if (isempty(keymap_toggle)) keymap_toggle = NULL; if (!streq_ptr(keymap, c->vc_keymap) || !streq_ptr(keymap_toggle, c->vc_keymap_toggle)) { if ((keymap && (!filename_is_valid(keymap) || !string_is_safe(keymap))) || (keymap_toggle && (!filename_is_valid(keymap_toggle) || !string_is_safe(keymap_toggle)))) return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keymap data"); r = bus_verify_polkit_async( m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-keyboard", interactive, UID_INVALID, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ if (free_and_strdup(&c->vc_keymap, keymap) < 0 || free_and_strdup(&c->vc_keymap_toggle, keymap_toggle) < 0) return -ENOMEM; r = vconsole_write_data(c); if (r < 0) { log_error_errno(r, "Failed to set virtual console keymap: %m"); return sd_bus_error_set_errnof(error, r, "Failed to set virtual console keymap: %s", strerror(-r)); } log_info("Changed virtual console keymap to '%s' toggle '%s'", strempty(c->vc_keymap), strempty(c->vc_keymap_toggle)); r = vconsole_reload(sd_bus_message_get_bus(m)); if (r < 0) log_error_errno(r, "Failed to request keymap reload: %m"); (void) sd_bus_emit_properties_changed( sd_bus_message_get_bus(m), "/org/freedesktop/locale1", "org.freedesktop.locale1", "VConsoleKeymap", "VConsoleKeymapToggle", NULL); if (convert) { r = vconsole_convert_to_x11(c, sd_bus_message_get_bus(m)); if (r < 0) log_error_errno(r, "Failed to convert keymap data: %m"); } } return sd_bus_reply_method_return(m, NULL); } #ifdef HAVE_XKBCOMMON static void log_xkb(struct xkb_context *ctx, enum xkb_log_level lvl, const char *format, va_list args) { const char *fmt; fmt = strjoina("libxkbcommon: ", format); log_internalv(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, fmt, args); } static int verify_xkb_rmlvo(const char *model, const char *layout, const char *variant, const char *options) { const struct xkb_rule_names rmlvo = { .model = model, .layout = layout, .variant = variant, .options = options, }; struct xkb_context *ctx = NULL; struct xkb_keymap *km = NULL; int r; /* compile keymap from RMLVO information to check out its validity */ ctx = xkb_context_new(XKB_CONTEXT_NO_ENVIRONMENT_NAMES); if (!ctx) { r = -ENOMEM; goto exit; } xkb_context_set_log_fn(ctx, log_xkb); km = xkb_keymap_new_from_names(ctx, &rmlvo, XKB_KEYMAP_COMPILE_NO_FLAGS); if (!km) { r = -EINVAL; goto exit; } r = 0; exit: xkb_keymap_unref(km); xkb_context_unref(ctx); return r; } #else static int verify_xkb_rmlvo(const char *model, const char *layout, const char *variant, const char *options) { return 0; } #endif static int method_set_x11_keyboard(sd_bus_message *m, void *userdata, sd_bus_error *error) { Context *c = userdata; const char *layout, *model, *variant, *options; int convert, interactive; int r; assert(m); assert(c); r = sd_bus_message_read(m, "ssssbb", &layout, &model, &variant, &options, &convert, &interactive); if (r < 0) return r; if (isempty(layout)) layout = NULL; if (isempty(model)) model = NULL; if (isempty(variant)) variant = NULL; if (isempty(options)) options = NULL; if (!streq_ptr(layout, c->x11_layout) || !streq_ptr(model, c->x11_model) || !streq_ptr(variant, c->x11_variant) || !streq_ptr(options, c->x11_options)) { if ((layout && !string_is_safe(layout)) || (model && !string_is_safe(model)) || (variant && !string_is_safe(variant)) || (options && !string_is_safe(options))) return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keyboard data"); r = bus_verify_polkit_async( m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-keyboard", interactive, UID_INVALID, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ r = verify_xkb_rmlvo(model, layout, variant, options); if (r < 0) { log_error_errno(r, "Cannot compile XKB keymap for new x11 keyboard layout ('%s' / '%s' / '%s' / '%s'): %m", strempty(model), strempty(layout), strempty(variant), strempty(options)); return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot compile XKB keymap, refusing"); } if (free_and_strdup(&c->x11_layout, layout) < 0 || free_and_strdup(&c->x11_model, model) < 0 || free_and_strdup(&c->x11_variant, variant) < 0 || free_and_strdup(&c->x11_options, options) < 0) return -ENOMEM; r = x11_write_data(c); if (r < 0) { log_error_errno(r, "Failed to set X11 keyboard layout: %m"); return sd_bus_error_set_errnof(error, r, "Failed to set X11 keyboard layout: %s", strerror(-r)); } log_info("Changed X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'", strempty(c->x11_layout), strempty(c->x11_model), strempty(c->x11_variant), strempty(c->x11_options)); (void) sd_bus_emit_properties_changed( sd_bus_message_get_bus(m), "/org/freedesktop/locale1", "org.freedesktop.locale1", "X11Layout", "X11Model", "X11Variant", "X11Options", NULL); if (convert) { r = x11_convert_to_vconsole(c, sd_bus_message_get_bus(m)); if (r < 0) log_error_errno(r, "Failed to convert keymap data: %m"); } } return sd_bus_reply_method_return(m, NULL); } static const sd_bus_vtable locale_vtable[] = { SD_BUS_VTABLE_START(0), SD_BUS_PROPERTY("Locale", "as", property_get_locale, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("X11Layout", "s", NULL, offsetof(Context, x11_layout), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("X11Model", "s", NULL, offsetof(Context, x11_model), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("X11Variant", "s", NULL, offsetof(Context, x11_variant), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("X11Options", "s", NULL, offsetof(Context, x11_options), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("VConsoleKeymap", "s", NULL, offsetof(Context, vc_keymap), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("VConsoleKeymapToggle", "s", NULL, offsetof(Context, vc_keymap_toggle), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_METHOD("SetLocale", "asb", NULL, method_set_locale, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("SetVConsoleKeyboard", "ssbb", NULL, method_set_vc_keyboard, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("SetX11Keyboard", "ssssbb", NULL, method_set_x11_keyboard, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_VTABLE_END }; static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { _cleanup_bus_close_unref_ sd_bus *bus = NULL; int r; assert(c); assert(event); assert(_bus); r = sd_bus_default_system(&bus); if (r < 0) return log_error_errno(r, "Failed to get system bus connection: %m"); r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/locale1", "org.freedesktop.locale1", locale_vtable, c); if (r < 0) return log_error_errno(r, "Failed to register object: %m"); r = sd_bus_request_name(bus, "org.freedesktop.locale1", 0); if (r < 0) return log_error_errno(r, "Failed to register name: %m"); r = sd_bus_attach_event(bus, event, 0); if (r < 0) return log_error_errno(r, "Failed to attach bus to event loop: %m"); *_bus = bus; bus = NULL; return 0; } int main(int argc, char *argv[]) { _cleanup_(context_free) Context context = {}; _cleanup_event_unref_ sd_event *event = NULL; _cleanup_bus_close_unref_ sd_bus *bus = NULL; int r; log_set_target(LOG_TARGET_AUTO); log_parse_environment(); log_open(); umask(0022); mac_selinux_init("/etc"); if (argc != 1) { log_error("This program takes no arguments."); r = -EINVAL; goto finish; } r = sd_event_default(&event); if (r < 0) { log_error_errno(r, "Failed to allocate event loop: %m"); goto finish; } sd_event_set_watchdog(event, true); r = connect_bus(&context, event, &bus); if (r < 0) goto finish; r = context_read_data(&context); if (r < 0) { log_error_errno(r, "Failed to read locale data: %m"); goto finish; } r = bus_event_loop_with_idle(event, bus, "org.freedesktop.locale1", DEFAULT_EXIT_USEC, NULL, NULL); if (r < 0) { log_error_errno(r, "Failed to run event loop: %m"); goto finish; } finish: return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }