localed.c revision ca2871d9b027018c108e0cf7bbc4e5a919e300c3
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2011 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 <dbus/dbus.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
#include "mkdir.h"
#include "strv.h"
#include "dbus-common.h"
#include "polkit.h"
#include "def.h"
#include "env-util.h"
#include "fileio.h"
#include "fileio-label.h"
#include "label.h"
#define INTERFACE \
" <interface name=\"org.freedesktop.locale1\">\n" \
" <property name=\"Locale\" type=\"as\" access=\"read\"/>\n" \
" <property name=\"VConsoleKeymap\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"VConsoleKeymapToggle\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"X11Layout\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"X11Model\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"X11Variant\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"X11Options\" type=\"s\" access=\"read\"/>\n" \
" <method name=\"SetLocale\">\n" \
" <arg name=\"locale\" type=\"as\" direction=\"in\"/>\n" \
" <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
" </method>\n" \
" <method name=\"SetVConsoleKeyboard\">\n" \
" <arg name=\"keymap\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"keymap_toggle\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"convert\" type=\"b\" direction=\"in\"/>\n" \
" <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
" </method>\n" \
" <method name=\"SetX11Keyboard\">\n" \
" <arg name=\"layout\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"model\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"variant\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"options\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"convert\" type=\"b\" direction=\"in\"/>\n" \
" <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
" </method>\n" \
" </interface>\n"
#define INTROSPECTION \
DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
"<node>\n" \
INTERFACE \
BUS_PROPERTIES_INTERFACE \
BUS_INTROSPECTABLE_INTERFACE \
BUS_PEER_INTERFACE \
"</node>\n"
#define INTERFACES_LIST \
BUS_GENERIC_INTERFACES_LIST \
"org.freedesktop.locale1\0"
const char locale_interface[] = INTERFACE;
enum {
/* We don't list LC_ALL here on purpose. People should be
* using LANG instead. */
PROP_LANG,
PROP_LANGUAGE,
PROP_LC_CTYPE,
PROP_LC_NUMERIC,
PROP_LC_TIME,
PROP_LC_COLLATE,
PROP_LC_MONETARY,
PROP_LC_MESSAGES,
PROP_LC_PAPER,
PROP_LC_NAME,
PROP_LC_ADDRESS,
PROP_LC_TELEPHONE,
PROP_LC_MEASUREMENT,
PROP_LC_IDENTIFICATION,
_PROP_MAX
};
static const char * const names[_PROP_MAX] = {
[PROP_LANG] = "LANG",
[PROP_LANGUAGE] = "LANGUAGE",
[PROP_LC_CTYPE] = "LC_CTYPE",
[PROP_LC_NUMERIC] = "LC_NUMERIC",
[PROP_LC_TIME] = "LC_TIME",
[PROP_LC_COLLATE] = "LC_COLLATE",
[PROP_LC_MONETARY] = "LC_MONETARY",
[PROP_LC_MESSAGES] = "LC_MESSAGES",
[PROP_LC_PAPER] = "LC_PAPER",
[PROP_LC_NAME] = "LC_NAME",
[PROP_LC_ADDRESS] = "LC_ADDRESS",
[PROP_LC_TELEPHONE] = "LC_TELEPHONE",
[PROP_LC_MEASUREMENT] = "LC_MEASUREMENT",
[PROP_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
};
static char *data[_PROP_MAX] = {};
typedef struct State {
char *x11_layout, *x11_model, *x11_variant, *x11_options;
char *vc_keymap, *vc_keymap_toggle;
} State;
static State state;
static usec_t remain_until = 0;
static int free_and_set(char **s, const char *v) {
int r;
char *t;
assert(s);
r = strdup_or_null(isempty(v) ? NULL : v, &t);
if (r < 0)
return r;
free(*s);
*s = t;
return 0;
}
static void free_data_locale(void) {
int p;
for (p = 0; p < _PROP_MAX; p++) {
free(data[p]);
data[p] = NULL;
}
}
static void free_data_x11(void) {
free(state.x11_layout);
free(state.x11_model);
free(state.x11_variant);
free(state.x11_options);
state.x11_layout = state.x11_model = state.x11_variant = state.x11_options = NULL;
}
static void free_data_vconsole(void) {
free(state.vc_keymap);
free(state.vc_keymap_toggle);
state.vc_keymap = state.vc_keymap_toggle = NULL;
}
static void simplify(void) {
int p;
for (p = 1; p < _PROP_MAX; p++)
if (isempty(data[p]) || streq_ptr(data[PROP_LANG], data[p])) {
free(data[p]);
data[p] = NULL;
}
}
static int read_data_locale(void) {
int r;
free_data_locale();
r = parse_env_file("/etc/locale.conf", NEWLINE,
"LANG", &data[PROP_LANG],
"LANGUAGE", &data[PROP_LANGUAGE],
"LC_CTYPE", &data[PROP_LC_CTYPE],
"LC_NUMERIC", &data[PROP_LC_NUMERIC],
"LC_TIME", &data[PROP_LC_TIME],
"LC_COLLATE", &data[PROP_LC_COLLATE],
"LC_MONETARY", &data[PROP_LC_MONETARY],
"LC_MESSAGES", &data[PROP_LC_MESSAGES],
"LC_PAPER", &data[PROP_LC_PAPER],
"LC_NAME", &data[PROP_LC_NAME],
"LC_ADDRESS", &data[PROP_LC_ADDRESS],
"LC_TELEPHONE", &data[PROP_LC_TELEPHONE],
"LC_MEASUREMENT", &data[PROP_LC_MEASUREMENT],
"LC_IDENTIFICATION", &data[PROP_LC_IDENTIFICATION],
NULL);
if (r == -ENOENT) {
int p;
/* Fill in what we got passed from systemd. */
for (p = 0; p < _PROP_MAX; p++) {
char *e, *d;
assert(names[p]);
e = getenv(names[p]);
if (e) {
d = strdup(e);
if (!d)
return -ENOMEM;
} else
d = NULL;
free(data[p]);
data[p] = d;
}
r = 0;
}
simplify();
return r;
}
static void free_data(void) {
free_data_locale();
free_data_vconsole();
free_data_x11();
}
static int read_data_vconsole(void) {
int r;
free_data_vconsole();
r = parse_env_file("/etc/vconsole.conf", NEWLINE,
"KEYMAP", &state.vc_keymap,
"KEYMAP_TOGGLE", &state.vc_keymap_toggle,
NULL);
if (r < 0 && r != -ENOENT)
return r;
return 0;
}
static int read_data_x11(void) {
FILE *f;
char line[LINE_MAX];
bool in_section = false;
free_data_x11();
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")) {
char **a;
a = strv_split_quoted(l);
if (!a) {
fclose(f);
return -ENOMEM;
}
if (strv_length(a) == 3) {
if (streq(a[1], "XkbLayout")) {
free(state.x11_layout);
state.x11_layout = a[2];
a[2] = NULL;
} else if (streq(a[1], "XkbModel")) {
free(state.x11_model);
state.x11_model = a[2];
a[2] = NULL;
} else if (streq(a[1], "XkbVariant")) {
free(state.x11_variant);
state.x11_variant = a[2];
a[2] = NULL;
} else if (streq(a[1], "XkbOptions")) {
free(state.x11_options);
state.x11_options = a[2];
a[2] = NULL;
}
}
strv_free(a);
} else if (!in_section && first_word(l, "Section")) {
char **a;
a = strv_split_quoted(l);
if (!a) {
fclose(f);
return -ENOMEM;
}
if (strv_length(a) == 2 && streq(a[1], "InputClass"))
in_section = true;
strv_free(a);
} else if (in_section && first_word(l, "EndSection"))
in_section = false;
}
fclose(f);
return 0;
}
static int read_data(void) {
int r, q, p;
r = read_data_locale();
q = read_data_vconsole();
p = read_data_x11();
return r < 0 ? r : q < 0 ? q : p;
}
static int write_data_locale(void) {
int r, p;
char **l = NULL;
r = load_env_file("/etc/locale.conf", NULL, &l);
if (r < 0 && r != -ENOENT)
return r;
for (p = 0; p < _PROP_MAX; p++) {
char *t, **u;
assert(names[p]);
if (isempty(data[p])) {
l = strv_env_unset(l, names[p]);
continue;
}
if (asprintf(&t, "%s=%s", names[p], data[p]) < 0) {
strv_free(l);
return -ENOMEM;
}
u = strv_env_set(l, t);
free(t);
strv_free(l);
if (!u)
return -ENOMEM;
l = u;
}
if (strv_isempty(l)) {
strv_free(l);
if (unlink("/etc/locale.conf") < 0)
return errno == ENOENT ? 0 : -errno;
return 0;
}
r = write_env_file_label("/etc/locale.conf", l);
strv_free(l);
return r;
}
static void push_data(DBusConnection *bus) {
char **l_set = NULL, **l_unset = NULL, **t;
int c_set = 0, c_unset = 0, p;
DBusError error;
DBusMessage *m = NULL, *reply = NULL;
DBusMessageIter iter, sub;
dbus_error_init(&error);
assert(bus);
l_set = new0(char*, _PROP_MAX);
l_unset = new0(char*, _PROP_MAX);
if (!l_set || !l_unset) {
log_oom();
goto finish;
}
for (p = 0; p < _PROP_MAX; p++) {
assert(names[p]);
if (isempty(data[p]))
l_unset[c_set++] = (char*) names[p];
else {
char *s;
if (asprintf(&s, "%s=%s", names[p], data[p]) < 0) {
log_oom();
goto finish;
}
l_set[c_unset++] = s;
}
}
assert(c_set + c_unset == _PROP_MAX);
m = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnsetAndSetEnvironment");
if (!m) {
log_error("Could not allocate message.");
goto finish;
}
dbus_message_iter_init_append(m, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
log_oom();
goto finish;
}
STRV_FOREACH(t, l_unset)
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, t)) {
log_oom();
goto finish;
}
if (!dbus_message_iter_close_container(&iter, &sub) ||
!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
log_oom();
goto finish;
}
STRV_FOREACH(t, l_set)
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, t)) {
log_oom();
goto finish;
}
if (!dbus_message_iter_close_container(&iter, &sub)) {
log_oom();
goto finish;
}
reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
if (!reply) {
log_error("Failed to set locale information: %s", bus_error_message(&error));
goto finish;
}
finish:
if (m)
dbus_message_unref(m);
if (reply)
dbus_message_unref(reply);
dbus_error_free(&error);
strv_free(l_set);
free(l_unset);
}
static int write_data_vconsole(void) {
int r;
char **l = NULL;
r = load_env_file("/etc/vconsole.conf", NULL, &l);
if (r < 0 && r != -ENOENT)
return r;
if (isempty(state.vc_keymap))
l = strv_env_unset(l, "KEYMAP");
else {
char *s, **u;
s = strappend("KEYMAP=", state.vc_keymap);
if (!s) {
strv_free(l);
return -ENOMEM;
}
u = strv_env_set(l, s);
free(s);
strv_free(l);
if (!u)
return -ENOMEM;
l = u;
}
if (isempty(state.vc_keymap_toggle))
l = strv_env_unset(l, "KEYMAP_TOGGLE");
else {
char *s, **u;
s = strappend("KEYMAP_TOGGLE=", state.vc_keymap_toggle);
if (!s) {
strv_free(l);
return -ENOMEM;
}
u = strv_env_set(l, s);
free(s);
strv_free(l);
if (!u)
return -ENOMEM;
l = u;
}
if (strv_isempty(l)) {
strv_free(l);
if (unlink("/etc/vconsole.conf") < 0)
return errno == ENOENT ? 0 : -errno;
return 0;
}
r = write_env_file_label("/etc/vconsole.conf", l);
strv_free(l);
return r;
}
static int write_data_x11(void) {
FILE *f;
char *temp_path;
int r;
if (isempty(state.x11_layout) &&
isempty(state.x11_model) &&
isempty(state.x11_variant) &&
isempty(state.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(state.x11_layout))
fprintf(f, " Option \"XkbLayout\" \"%s\"\n", state.x11_layout);
if (!isempty(state.x11_model))
fprintf(f, " Option \"XkbModel\" \"%s\"\n", state.x11_model);
if (!isempty(state.x11_variant))
fprintf(f, " Option \"XkbVariant\" \"%s\"\n", state.x11_variant);
if (!isempty(state.x11_options))
fprintf(f, " Option \"XkbOptions\" \"%s\"\n", state.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);
} else
r = 0;
fclose(f);
free(temp_path);
return r;
}
static int load_vconsole_keymap(DBusConnection *bus, DBusError *error) {
DBusMessage *m = NULL, *reply = NULL;
const char *name = "systemd-vconsole-setup.service", *mode = "replace";
int r;
DBusError _error;
assert(bus);
if (!error) {
dbus_error_init(&_error);
error = &_error;
}
m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"RestartUnit");
if (!m) {
log_error("Could not allocate message.");
r = -ENOMEM;
goto finish;
}
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &mode,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
goto finish;
}
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:
if (m)
dbus_message_unref(m);
if (reply)
dbus_message_unref(reply);
if (error == &_error)
dbus_error_free(error);
return r;
}
static char *strnulldash(const char *s) {
return s == NULL || *s == 0 || (s[0] == '-' && s[1] == 0) ? NULL : (char*) s;
}
static int read_next_mapping(FILE *f, unsigned *n, char ***a) {
assert(f);
assert(n);
assert(a);
for (;;) {
char line[LINE_MAX];
char *l, **b;
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;
b = strv_split_quoted(l);
if (!b)
return -ENOMEM;
if (strv_length(b) < 5) {
log_error("Invalid line "SYSTEMD_KBD_MODEL_MAP":%u, ignoring.", *n);
strv_free(b);
continue;
}
*a = b;
return 1;
}
}
static int convert_vconsole_to_x11(DBusConnection *connection) {
bool modified = false;
assert(connection);
if (isempty(state.vc_keymap)) {
modified =
!isempty(state.x11_layout) ||
!isempty(state.x11_model) ||
!isempty(state.x11_variant) ||
!isempty(state.x11_options);
free_data_x11();
} else {
FILE *f;
unsigned n = 0;
f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
if (!f)
return -errno;
for (;;) {
char **a;
int r;
r = read_next_mapping(f, &n, &a);
if (r < 0) {
fclose(f);
return r;
}
if (r == 0)
break;
if (!streq(state.vc_keymap, a[0])) {
strv_free(a);
continue;
}
if (!streq_ptr(state.x11_layout, strnulldash(a[1])) ||
!streq_ptr(state.x11_model, strnulldash(a[2])) ||
!streq_ptr(state.x11_variant, strnulldash(a[3])) ||
!streq_ptr(state.x11_options, strnulldash(a[4]))) {
if (free_and_set(&state.x11_layout, strnulldash(a[1])) < 0 ||
free_and_set(&state.x11_model, strnulldash(a[2])) < 0 ||
free_and_set(&state.x11_variant, strnulldash(a[3])) < 0 ||
free_and_set(&state.x11_options, strnulldash(a[4])) < 0) {
strv_free(a);
fclose(f);
return -ENOMEM;
}
modified = true;
}
strv_free(a);
break;
}
fclose(f);
}
if (modified) {
dbus_bool_t b;
DBusMessage *changed;
int r;
r = write_data_x11();
if (r < 0)
log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
changed = bus_properties_changed_new(
"/org/freedesktop/locale1",
"org.freedesktop.locale1",
"X11Layout\0"
"X11Model\0"
"X11Variant\0"
"X11Options\0");
if (!changed)
return -ENOMEM;
b = dbus_connection_send(connection, changed, NULL);
dbus_message_unref(changed);
if (!b)
return -ENOMEM;
}
return 0;
}
static int convert_x11_to_vconsole(DBusConnection *connection) {
bool modified = false;
assert(connection);
if (isempty(state.x11_layout)) {
modified =
!isempty(state.vc_keymap) ||
!isempty(state.vc_keymap_toggle);
free_data_x11();
} else {
_cleanup_fclose_ FILE *f;
unsigned n = 0;
unsigned best_matching = 0;
char *new_keymap = NULL;
f = fopen(SYSTEMD_KBD_MODEL_MAP, "re");
if (!f)
return -errno;
for (;;) {
_cleanup_strv_free_ char **a = NULL;
unsigned matching = 0;
int r;
r = read_next_mapping(f, &n, &a);
if (r < 0)
return r;
if (r == 0)
break;
/* Determine how well matching this entry is */
if (streq_ptr(state.x11_layout, a[1]))
/* If we got an exact match, this is best */
matching = 10;
else {
size_t x;
x = strcspn(state.x11_layout, ",");
/* We have multiple X layouts, look
* for an entry that matches our key
* with the everything but the first
* layout stripped off. */
if (x > 0 &&
strlen(a[1]) == x &&
strneq(state.x11_layout, a[1], x))
matching = 5;
else {
size_t w;
/* If that didn't work, strip
* off the other layouts from
* the entry, too */
w = strcspn(a[1], ",");
if (x > 0 && x == w &&
memcmp(state.x11_layout, a[1], x) == 0)
matching = 1;
}
}
if (matching > 0 &&
streq_ptr(state.x11_model, a[2])) {
matching++;
if (streq_ptr(state.x11_variant, a[3])) {
matching++;
if (streq_ptr(state.x11_options, a[4]))
matching++;
}
}
/* The best matching entry so far, then let's
* save that */
if (matching > best_matching) {
best_matching = matching;
free(new_keymap);
new_keymap = strdup(a[0]);
if (!new_keymap)
return -ENOMEM;
}
}
if (!streq_ptr(state.vc_keymap, new_keymap)) {
free(state.vc_keymap);
state.vc_keymap = new_keymap;
free(state.vc_keymap_toggle);
state.vc_keymap_toggle = NULL;
modified = true;
} else
free(new_keymap);
}
if (modified) {
dbus_bool_t b;
_cleanup_dbus_message_unref_ DBusMessage *changed = NULL;
int r;
r = write_data_vconsole();
if (r < 0)
log_error("Failed to set virtual console keymap: %s", strerror(-r));
changed = bus_properties_changed_new(
"/org/freedesktop/locale1",
"org.freedesktop.locale1",
"VConsoleKeymap\0"
"VConsoleKeymapToggle\0");
if (!changed)
return -ENOMEM;
b = dbus_connection_send(connection, changed, NULL);
if (!b)
return -ENOMEM;
return load_vconsole_keymap(connection, NULL);
}
return 0;
}
static int append_locale(DBusMessageIter *i, const char *property, void *userdata) {
int c, p;
_cleanup_strv_free_ char **l = NULL;
l = new0(char*, _PROP_MAX+1);
if (!l)
return -ENOMEM;
for (p = 0, c = 0; p < _PROP_MAX; p++) {
char *t;
if (isempty(data[p]))
continue;
if (asprintf(&t, "%s=%s", names[p], data[p]) < 0)
return -ENOMEM;
l[c++] = t;
}
return bus_property_append_strv(i, property, (void*) l);
}
static const BusProperty bus_locale_properties[] = {
{ "Locale", append_locale, "as", 0 },
{ "X11Layout", bus_property_append_string, "s", offsetof(State, x11_layout), true },
{ "X11Model", bus_property_append_string, "s", offsetof(State, x11_model), true },
{ "X11Variant", bus_property_append_string, "s", offsetof(State, x11_variant), true },
{ "X11Options", bus_property_append_string, "s", offsetof(State, x11_options), true },
{ "VConsoleKeymap", bus_property_append_string, "s", offsetof(State, vc_keymap), true },
{ "VConsoleKeymapToggle", bus_property_append_string, "s", offsetof(State, vc_keymap_toggle), true },
{ NULL, }
};
static const BusBoundProperties bps[] = {
{ "org.freedesktop.locale1", bus_locale_properties, &state },
{ NULL, }
};
static DBusHandlerResult locale_message_handler(
DBusConnection *connection,
DBusMessage *message,
void *userdata) {
DBusMessage *reply = NULL, *changed = NULL;
DBusError error;
int r;
assert(connection);
assert(message);
dbus_error_init(&error);
if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetLocale")) {
char **l = NULL, **i;
dbus_bool_t interactive;
DBusMessageIter iter;
bool modified = false;
bool passed[_PROP_MAX] = {};
int p;
if (!dbus_message_iter_init(message, &iter))
return bus_send_error_reply(connection, message, NULL, -EINVAL);
r = bus_parse_strv_iter(&iter, &l);
if (r < 0) {
if (r == -ENOMEM)
goto oom;
return bus_send_error_reply(connection, message, NULL, r);
}
if (!dbus_message_iter_next(&iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
strv_free(l);
return bus_send_error_reply(connection, message, NULL, -EINVAL);
}
dbus_message_iter_get_basic(&iter, &interactive);
/* Check whether a variable changed and if so valid */
STRV_FOREACH(i, l) {
bool valid = false;
for (p = 0; p < _PROP_MAX; p++) {
size_t k;
k = strlen(names[p]);
if (startswith(*i, names[p]) &&
(*i)[k] == '=' &&
string_is_safe((*i) + k + 1)) {
valid = true;
passed[p] = true;
if (!streq_ptr(*i + k + 1, data[p]))
modified = true;
break;
}
}
if (!valid) {
strv_free(l);
return bus_send_error_reply(connection, message, NULL, -EINVAL);
}
}
/* Check whether a variable is unset */
if (!modified) {
for (p = 0; p < _PROP_MAX; p++)
if (!isempty(data[p]) && !passed[p]) {
modified = true;
break;
}
}
if (modified) {
r = verify_polkit(connection, message, "org.freedesktop.locale1.set-locale", interactive, NULL, &error);
if (r < 0) {
strv_free(l);
return bus_send_error_reply(connection, message, &error, r);
}
STRV_FOREACH(i, l) {
for (p = 0; p < _PROP_MAX; p++) {
size_t k;
k = strlen(names[p]);
if (startswith(*i, names[p]) && (*i)[k] == '=') {
char *t;
t = strdup(*i + k + 1);
if (!t) {
strv_free(l);
goto oom;
}
free(data[p]);
data[p] = t;
break;
}
}
}
strv_free(l);
for (p = 0; p < _PROP_MAX; p++) {
if (passed[p])
continue;
free(data[p]);
data[p] = NULL;
}
simplify();
r = write_data_locale();
if (r < 0) {
log_error("Failed to set locale: %s", strerror(-r));
return bus_send_error_reply(connection, message, NULL, r);
}
push_data(connection);
log_info("Changed locale information.");
changed = bus_properties_changed_new(
"/org/freedesktop/locale1",
"org.freedesktop.locale1",
"Locale\0");
if (!changed)
goto oom;
} else
strv_free(l);
} else if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetVConsoleKeyboard")) {
const char *keymap, *keymap_toggle;
dbus_bool_t convert, interactive;
if (!dbus_message_get_args(
message,
&error,
DBUS_TYPE_STRING, &keymap,
DBUS_TYPE_STRING, &keymap_toggle,
DBUS_TYPE_BOOLEAN, &convert,
DBUS_TYPE_BOOLEAN, &interactive,
DBUS_TYPE_INVALID))
return bus_send_error_reply(connection, message, &error, -EINVAL);
if (isempty(keymap))
keymap = NULL;
if (isempty(keymap_toggle))
keymap_toggle = NULL;
if (!streq_ptr(keymap, state.vc_keymap) ||
!streq_ptr(keymap_toggle, state.vc_keymap_toggle)) {
if ((keymap && (!filename_is_safe(keymap) || !string_is_safe(keymap))) ||
(keymap_toggle && (!filename_is_safe(keymap_toggle) || !string_is_safe(keymap_toggle))))
return bus_send_error_reply(connection, message, NULL, -EINVAL);
r = verify_polkit(connection, message, "org.freedesktop.locale1.set-keyboard", interactive, NULL, &error);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
if (free_and_set(&state.vc_keymap, keymap) < 0 ||
free_and_set(&state.vc_keymap_toggle, keymap_toggle) < 0)
goto oom;
r = write_data_vconsole();
if (r < 0) {
log_error("Failed to set virtual console keymap: %s", strerror(-r));
return bus_send_error_reply(connection, message, NULL, r);
}
log_info("Changed virtual console keymap to '%s'", strempty(state.vc_keymap));
r = load_vconsole_keymap(connection, NULL);
if (r < 0)
log_error("Failed to request keymap reload: %s", strerror(-r));
changed = bus_properties_changed_new(
"/org/freedesktop/locale1",
"org.freedesktop.locale1",
"VConsoleKeymap\0"
"VConsoleKeymapToggle\0");
if (!changed)
goto oom;
if (convert) {
r = convert_vconsole_to_x11(connection);
if (r < 0)
log_error("Failed to convert keymap data: %s", strerror(-r));
}
}
} else if (dbus_message_is_method_call(message, "org.freedesktop.locale1", "SetX11Keyboard")) {
const char *layout, *model, *variant, *options;
dbus_bool_t convert, interactive;
if (!dbus_message_get_args(
message,
&error,
DBUS_TYPE_STRING, &layout,
DBUS_TYPE_STRING, &model,
DBUS_TYPE_STRING, &variant,
DBUS_TYPE_STRING, &options,
DBUS_TYPE_BOOLEAN, &convert,
DBUS_TYPE_BOOLEAN, &interactive,
DBUS_TYPE_INVALID))
return bus_send_error_reply(connection, message, &error, -EINVAL);
if (isempty(layout))
layout = NULL;
if (isempty(model))
model = NULL;
if (isempty(variant))
variant = NULL;
if (isempty(options))
options = NULL;
if (!streq_ptr(layout, state.x11_layout) ||
!streq_ptr(model, state.x11_model) ||
!streq_ptr(variant, state.x11_variant) ||
!streq_ptr(options, state.x11_options)) {
if ((layout && !string_is_safe(layout)) ||
(model && !string_is_safe(model)) ||
(variant && !string_is_safe(variant)) ||
(options && !string_is_safe(options)))
return bus_send_error_reply(connection, message, NULL, -EINVAL);
r = verify_polkit(connection, message, "org.freedesktop.locale1.set-keyboard", interactive, NULL, &error);
if (r < 0)
return bus_send_error_reply(connection, message, &error, r);
if (free_and_set(&state.x11_layout, layout) < 0 ||
free_and_set(&state.x11_model, model) < 0 ||
free_and_set(&state.x11_variant, variant) < 0 ||
free_and_set(&state.x11_options, options) < 0)
goto oom;
r = write_data_x11();
if (r < 0) {
log_error("Failed to set X11 keyboard layout: %s", strerror(-r));
return bus_send_error_reply(connection, message, NULL, r);
}
log_info("Changed X11 keyboard layout to '%s'", strempty(state.x11_layout));
changed = bus_properties_changed_new(
"/org/freedesktop/locale1",
"org.freedesktop.locale1",
"X11Layout\0"
"X11Model\0"
"X11Variant\0"
"X11Options\0");
if (!changed)
goto oom;
if (convert) {
r = convert_x11_to_vconsole(connection);
if (r < 0)
log_error("Failed to convert keymap data: %s", strerror(-r));
}
}
} else
return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
if (!(reply = dbus_message_new_method_return(message)))
goto oom;
if (!bus_maybe_send_reply(connection, message, reply))
goto oom;
dbus_message_unref(reply);
reply = NULL;
if (changed) {
if (!dbus_connection_send(connection, changed, NULL))
goto oom;
dbus_message_unref(changed);
}
return DBUS_HANDLER_RESULT_HANDLED;
oom:
if (reply)
dbus_message_unref(reply);
if (changed)
dbus_message_unref(changed);
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
static int connect_bus(DBusConnection **_bus) {
static const DBusObjectPathVTable locale_vtable = {
.message_function = locale_message_handler
};
DBusError error;
DBusConnection *bus = NULL;
int r;
assert(_bus);
dbus_error_init(&error);
bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
if (!bus) {
log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
r = -ECONNREFUSED;
goto fail;
}
dbus_connection_set_exit_on_disconnect(bus, FALSE);
if (!dbus_connection_register_object_path(bus, "/org/freedesktop/locale1", &locale_vtable, NULL) ||
!dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) {
r = log_oom();
goto fail;
}
r = dbus_bus_request_name(bus, "org.freedesktop.locale1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
if (dbus_error_is_set(&error)) {
log_error("Failed to register name on bus: %s", bus_error_message(&error));
r = -EEXIST;
goto fail;
}
if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
log_error("Failed to acquire name.");
r = -EEXIST;
goto fail;
}
if (_bus)
*_bus = bus;
return 0;
fail:
dbus_connection_close(bus);
dbus_connection_unref(bus);
dbus_error_free(&error);
return r;
}
int main(int argc, char *argv[]) {
int r;
DBusConnection *bus = NULL;
bool exiting = false;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
label_init("/etc");
umask(0022);
if (argc != 1) {
log_error("This program takes no arguments.");
r = -EINVAL;
goto finish;
}
r = read_data();
if (r < 0) {
log_error("Failed to read locale data: %s", strerror(-r));
goto finish;
}
r = connect_bus(&bus);
if (r < 0)
goto finish;
remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC;
for (;;) {
if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC)))
break;
if (!exiting && remain_until < now(CLOCK_MONOTONIC)) {
exiting = true;
bus_async_unregister_and_exit(bus, "org.freedesktop.locale1");
}
}
r = 0;
finish:
free_data();
if (bus) {
dbus_connection_flush(bus);
dbus_connection_close(bus);
dbus_connection_unref(bus);
}
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}