--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ 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 <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <string.h>
+#include <ftw.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+#include "dbus-common.h"
+#include "util.h"
+#include "spawn-polkit-agent.h"
+#include "build.h"
+#include "strv.h"
+#include "pager.h"
+#include "set.h"
+#include "path-util.h"
+
+static bool arg_no_pager = false;
+static enum transport {
+ TRANSPORT_NORMAL,
+ TRANSPORT_SSH,
+ TRANSPORT_POLKIT
+} arg_transport = TRANSPORT_NORMAL;
+static bool arg_ask_password = true;
+static const char *arg_host = NULL;
+static bool arg_convert = true;
+
+static void pager_open_if_enabled(void) {
+
+ if (arg_no_pager)
+ return;
+
+ pager_open();
+}
+
+static void polkit_agent_open_if_enabled(void) {
+
+ /* Open the polkit agent as a child process if necessary */
+
+ if (!arg_ask_password)
+ return;
+
+ polkit_agent_open();
+}
+
+typedef struct StatusInfo {
+ char **locale;
+ const char *vconsole_keymap;
+ const char *vconsole_keymap_toggle;
+ const char *x11_layout;
+ const char *x11_model;
+ const char *x11_variant;
+ const char *x11_options;
+} StatusInfo;
+
+static void print_status_info(StatusInfo *i) {
+ assert(i);
+
+ if (strv_isempty(i->locale))
+ puts(" System Locale: n/a\n");
+ else {
+ char **j;
+
+ printf(" System Locale: %s\n", i->locale[0]);
+ STRV_FOREACH(j, i->locale + 1)
+ printf(" %s\n", *j);
+ }
+
+ printf(" VC Keymap: %s\n", strna(i->vconsole_keymap));
+ if (!isempty(i->vconsole_keymap_toggle))
+ printf("VC Toggle Keymap: %s\n", i->vconsole_keymap_toggle);
+
+ printf(" X11 Layout: %s\n", strna(i->x11_layout));
+ if (!isempty(i->x11_model))
+ printf(" X11 Model: %s\n", i->x11_model);
+ if (!isempty(i->x11_variant))
+ printf(" X11 Variant: %s\n", i->x11_variant);
+ if (!isempty(i->x11_options))
+ printf(" X11 Options: %s\n", i->x11_options);
+}
+
+static int status_property(const char *name, DBusMessageIter *iter, StatusInfo *i) {
+ int r;
+
+ assert(name);
+ assert(iter);
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+ if (!isempty(s)) {
+ if (streq(name, "VConsoleKeymap"))
+ i->vconsole_keymap = s;
+ else if (streq(name, "VConsoleKeymapToggle"))
+ i->vconsole_keymap_toggle = s;
+ else if (streq(name, "X11Layout"))
+ i->x11_layout = s;
+ else if (streq(name, "X11Model"))
+ i->x11_model = s;
+ else if (streq(name, "X11Variant"))
+ i->x11_variant = s;
+ else if (streq(name, "X11Options"))
+ i->x11_options = s;
+ }
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY:
+
+ if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
+ char **l;
+
+ r = bus_parse_strv_iter(iter, &l);
+ if (r < 0)
+ return r;
+
+ if (streq(name, "Locale")) {
+ strv_free(i->locale);
+ i->locale = l;
+ l = NULL;
+ }
+
+ strv_free(l);
+ }
+ }
+
+ return 0;
+}
+
+static int show_status(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *interface = "";
+ int r;
+ DBusMessageIter iter, sub, sub2, sub3;
+ StatusInfo info;
+
+ assert(args);
+
+ r = bus_method_call_with_reply(
+ bus,
+ "org.freedesktop.locale1",
+ "/org/freedesktop/locale1",
+ "org.freedesktop.DBus.Properties",
+ "GetAll",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_INVALID);
+ if (r < 0)
+ return r;
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ zero(info);
+ dbus_message_iter_recurse(&iter, &sub);
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *name;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_recurse(&sub2, &sub3);
+
+ r = status_property(name, &sub3, &info);
+ if (r < 0) {
+ log_error("Failed to parse reply.");
+ return r;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ print_status_info(&info);
+ strv_free(info.locale);
+ return 0;
+}
+
+static int set_locale(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
+ dbus_bool_t interactive = true;
+ DBusError error;
+ DBusMessageIter iter;
+ int r;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ polkit_agent_open_if_enabled();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.locale1",
+ "/org/freedesktop/locale1",
+ "org.freedesktop.locale1",
+ "SetLocale");
+ if (!m)
+ return log_oom();
+
+ dbus_message_iter_init_append(m, &iter);
+
+ r = bus_append_strv_iter(&iter, args + 1);
+ if (r < 0)
+ return log_oom();
+
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &interactive))
+ return log_oom();
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ r = -EIO;
+ goto finish;
+ }
+
+ r = 0;
+
+finish:
+ dbus_error_free(&error);
+ return r;
+}
+
+static int list_locales(DBusConnection *bus, char **args, unsigned n) {
+ /* Stolen from glibc... */
+
+ struct locarhead {
+ uint32_t magic;
+ /* Serial number. */
+ uint32_t serial;
+ /* Name hash table. */
+ uint32_t namehash_offset;
+ uint32_t namehash_used;
+ uint32_t namehash_size;
+ /* String table. */
+ uint32_t string_offset;
+ uint32_t string_used;
+ uint32_t string_size;
+ /* Table with locale records. */
+ uint32_t locrectab_offset;
+ uint32_t locrectab_used;
+ uint32_t locrectab_size;
+ /* MD5 sum hash table. */
+ uint32_t sumhash_offset;
+ uint32_t sumhash_used;
+ uint32_t sumhash_size;
+ };
+
+ struct namehashent {
+ /* Hash value of the name. */
+ uint32_t hashval;
+ /* Offset of the name in the string table. */
+ uint32_t name_offset;
+ /* Offset of the locale record. */
+ uint32_t locrec_offset;
+ };
+
+ const struct locarhead *h;
+ const struct namehashent *e;
+ const void *p = MAP_FAILED;
+ _cleanup_close_ int fd = -1;
+ _cleanup_strv_free_ char **l = NULL;
+ char **j;
+ Set *locales;
+ size_t sz = 0;
+ struct stat st;
+ unsigned i;
+ int r;
+
+ locales = set_new(string_hash_func, string_compare_func);
+ if (!locales)
+ return log_oom();
+
+ fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0) {
+ log_error("Failed to open locale archive: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ if (fstat(fd, &st) < 0) {
+ log_error("fstat() failed: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ if (!S_ISREG(st.st_mode)) {
+ log_error("Archive file is not regular");
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ if (st.st_size < (off_t) sizeof(struct locarhead)) {
+ log_error("Archive has invalid size");
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+ if (p == MAP_FAILED) {
+ log_error("Failed to map archive: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ h = (const struct locarhead *) p;
+ if (h->magic != 0xde020109 ||
+ h->namehash_offset + h->namehash_size > st.st_size ||
+ h->string_offset + h->string_size > st.st_size ||
+ h->locrectab_offset + h->locrectab_size > st.st_size ||
+ h->sumhash_offset + h->sumhash_size > st.st_size) {
+ log_error("Invalid archive file.");
+ return -EBADMSG;
+ }
+
+ e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset);
+ for (i = 0; i < h->namehash_size; i++) {
+ char *z;
+
+ if (e[i].locrec_offset == 0)
+ continue;
+
+ z = strdup((char*) p + e[i].name_offset);
+ if (!z) {
+ r = log_oom();
+ goto finish;
+ }
+
+ r = set_put(locales, z);
+ if (r < 0) {
+ free(z);
+ log_error("Failed to add locale: %s", strerror(-r));
+ goto finish;
+ }
+ }
+
+ l = set_get_strv(locales);
+ if (!l) {
+ r = log_oom();
+ goto finish;
+ }
+
+ set_free(locales);
+ locales = NULL;
+
+ strv_sort(l);
+
+ pager_open_if_enabled();
+
+ STRV_FOREACH(j, l)
+ puts(*j);
+
+ r = 0;
+
+finish:
+ if (p != MAP_FAILED)
+ munmap((void*) p, sz);
+
+ set_free_free(locales);
+
+ return r;
+}
+
+static int set_vconsole_keymap(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ dbus_bool_t interactive = true, b;
+ const char *map, *toggle_map;
+
+ assert(bus);
+ assert(args);
+
+ if (n > 3) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ polkit_agent_open_if_enabled();
+
+ map = args[1];
+ toggle_map = n > 2 ? args[2] : "";
+ b = arg_convert;
+
+ return bus_method_call_with_reply(
+ bus,
+ "org.freedesktop.locale1",
+ "/org/freedesktop/locale1",
+ "org.freedesktop.locale1",
+ "SetVConsoleKeyboard",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &map,
+ DBUS_TYPE_STRING, &toggle_map,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID);
+}
+
+static Set *keymaps = NULL;
+
+static int nftw_cb(
+ const char *fpath,
+ const struct stat *sb,
+ int tflag,
+ struct FTW *ftwbuf) {
+
+ char *p, *e;
+ int r;
+
+ if (tflag != FTW_F)
+ return 0;
+
+ if (!endswith(fpath, ".map") &&
+ !endswith(fpath, ".map.gz"))
+ return 0;
+
+ p = strdup(path_get_file_name(fpath));
+ if (!p)
+ return log_oom();
+
+ e = endswith(p, ".map");
+ if (e)
+ *e = 0;
+
+ e = endswith(p, ".map.gz");
+ if (e)
+ *e = 0;
+
+ r = set_put(keymaps, p);
+ if (r == -EEXIST)
+ free(p);
+ else if (r < 0) {
+ log_error("Can't add keymap: %s", strerror(-r));
+ free(p);
+ return r;
+ }
+
+ return 0;
+}
+
+static int list_vconsole_keymaps(DBusConnection *bus, char **args, unsigned n) {
+ char **l, **i;
+
+ keymaps = set_new(string_hash_func, string_compare_func);
+ if (!keymaps)
+ return log_oom();
+
+ nftw("/usr/share/kbd/keymaps/", nftw_cb, 20, FTW_MOUNT|FTW_PHYS);
+ nftw("/usr/lib/kbd/keymaps/", nftw_cb, 20, FTW_MOUNT|FTW_PHYS);
+ nftw("/lib/kbd/keymaps/", nftw_cb, 20, FTW_MOUNT|FTW_PHYS);
+
+ l = set_get_strv(keymaps);
+ if (!l) {
+ set_free_free(keymaps);
+ return log_oom();
+ }
+
+ set_free(keymaps);
+
+ if (strv_isempty(l)) {
+ log_error("Couldn't find any console keymaps.");
+ return -ENOENT;
+ }
+
+ strv_sort(l);
+
+ pager_open_if_enabled();
+
+ STRV_FOREACH(i, l)
+ puts(*i);
+
+ strv_free(l);
+
+ return 0;
+}
+
+static int set_x11_keymap(DBusConnection *bus, char **args, unsigned n) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ dbus_bool_t interactive = true, b;
+ const char *layout, *model, *variant, *options;
+
+ assert(bus);
+ assert(args);
+
+ if (n > 5) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ polkit_agent_open_if_enabled();
+
+ layout = args[1];
+ model = n > 2 ? args[2] : "";
+ variant = n > 3 ? args[3] : "";
+ options = n > 3 ? args[4] : "";
+ b = arg_convert;
+
+ return bus_method_call_with_reply(
+ bus,
+ "org.freedesktop.locale1",
+ "/org/freedesktop/locale1",
+ "org.freedesktop.locale1",
+ "SetX11Keyboard",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &layout,
+ DBUS_TYPE_STRING, &model,
+ DBUS_TYPE_STRING, &variant,
+ DBUS_TYPE_STRING, &options,
+ DBUS_TYPE_BOOLEAN, &b,
+ DBUS_TYPE_BOOLEAN, &interactive,
+ DBUS_TYPE_INVALID);
+}
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] COMMAND ...\n\n"
+ "Query or change system time and date settings.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --no-convert Don't convert keyboard mappings\n"
+ " --no-pager Do not pipe output into a pager\n"
+ " --no-ask-password Do not prompt for password\n"
+ " -H --host=[USER@]HOST Operate on remote host\n\n"
+ "Commands:\n"
+ " status Show current locale settings\n"
+ " set-locale LOCALE... Set system locale\n"
+ " list-locales Show known locales\n"
+ " set-keymap MAP [MAP] Set virtual console keyboard mapping\n"
+ " list-keymaps Show known virtual console keyboard mappings\n"
+ " set-x11-keymap LAYOUT [MODEL] [VARIANT] [OPTIONS]\n"
+ " Set X11 keyboard mapping\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_NO_PAGER,
+ ARG_NO_CONVERT,
+ ARG_NO_ASK_PASSWORD
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "host", required_argument, NULL, 'H' },
+ { "privileged", no_argument, NULL, 'P' },
+ { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
+ { "no-convert", no_argument, NULL, ARG_NO_CONVERT },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "has:H:P", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(DISTRIBUTION);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case 'P':
+ arg_transport = TRANSPORT_POLKIT;
+ break;
+
+ case 'H':
+ arg_transport = TRANSPORT_SSH;
+ arg_host = optarg;
+ break;
+
+ case ARG_NO_CONVERT:
+ arg_convert = false;
+ break;
+
+ case ARG_NO_PAGER:
+ arg_no_pager = true;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ return 1;
+}
+
+static int localectl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
+
+ static const struct {
+ const char* verb;
+ const enum {
+ MORE,
+ LESS,
+ EQUAL
+ } argc_cmp;
+ const int argc;
+ int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
+ } verbs[] = {
+ { "status", LESS, 1, show_status },
+ { "set-locale", MORE, 2, set_locale },
+ { "list-locales", EQUAL, 1, list_locales },
+ { "set-keymap", MORE, 2, set_vconsole_keymap },
+ { "list-keymaps", EQUAL, 1, list_vconsole_keymaps },
+ { "set-x11-keymap", MORE, 2, set_x11_keymap },
+ };
+
+ int left;
+ unsigned i;
+
+ assert(argc >= 0);
+ assert(argv);
+ assert(error);
+
+ left = argc - optind;
+
+ if (left <= 0)
+ /* Special rule: no arguments means "status" */
+ i = 0;
+ else {
+ if (streq(argv[optind], "help")) {
+ help();
+ return 0;
+ }
+
+ for (i = 0; i < ELEMENTSOF(verbs); i++)
+ if (streq(argv[optind], verbs[i].verb))
+ break;
+
+ if (i >= ELEMENTSOF(verbs)) {
+ log_error("Unknown operation %s", argv[optind]);
+ return -EINVAL;
+ }
+ }
+
+ switch (verbs[i].argc_cmp) {
+
+ case EQUAL:
+ if (left != verbs[i].argc) {
+ log_error("Invalid number of arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ case MORE:
+ if (left < verbs[i].argc) {
+ log_error("Too few arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ case LESS:
+ if (left > verbs[i].argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ break;
+
+ default:
+ assert_not_reached("Unknown comparison operator.");
+ }
+
+ if (!bus) {
+ log_error("Failed to get D-Bus connection: %s", error->message);
+ return -EIO;
+ }
+
+ return verbs[i].dispatch(bus, argv + optind, left);
+}
+
+int main(int argc, char *argv[]) {
+ int r, retval = EXIT_FAILURE;
+ DBusConnection *bus = NULL;
+ DBusError error;
+
+ dbus_error_init(&error);
+
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r < 0)
+ goto finish;
+ else if (r == 0) {
+ retval = EXIT_SUCCESS;
+ goto finish;
+ }
+
+ if (arg_transport == TRANSPORT_NORMAL)
+ bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
+ else if (arg_transport == TRANSPORT_POLKIT)
+ bus_connect_system_polkit(&bus, &error);
+ else if (arg_transport == TRANSPORT_SSH)
+ bus_connect_system_ssh(NULL, arg_host, &bus, &error);
+ else
+ assert_not_reached("Uh, invalid transport...");
+
+ r = localectl_main(bus, argc, argv, &error);
+ retval = r < 0 ? EXIT_FAILURE : r;
+
+finish:
+ if (bus) {
+ dbus_connection_flush(bus);
+ dbus_connection_close(bus);
+ dbus_connection_unref(bus);
+ }
+
+ dbus_error_free(&error);
+ dbus_shutdown();
+
+ pager_close();
+
+ return retval;
+}
~ianmdlvl / elogind.git / commitdiff