+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 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 <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdbool.h>
-#include <limits.h>
-#include <sys/ioctl.h>
-#include <linux/tiocl.h>
-#include <linux/kd.h>
-#include <linux/vt.h>
-
-#include "util.h"
-#include "log.h"
-#include "virt.h"
-#include "fileio.h"
-
-static bool is_vconsole(int fd) {
- unsigned char data[1];
-
- data[0] = TIOCL_GETFGCONSOLE;
- return ioctl(fd, TIOCLINUX, data) >= 0;
-}
-
-static int disable_utf8(int fd) {
- int r = 0, k;
-
- if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
- r = -errno;
-
- k = loop_write(fd, "\033%@", 3, false);
- if (k < 0)
- r = k;
-
- k = write_string_file("/sys/module/vt/parameters/default_utf8", "0");
- if (k < 0)
- r = k;
-
- if (r < 0)
- log_warning_errno(r, "Failed to disable UTF-8: %m");
-
- return r;
-}
-
-static int enable_utf8(int fd) {
- int r = 0, k;
- long current = 0;
-
- if (ioctl(fd, KDGKBMODE, ¤t) < 0 || current == K_XLATE) {
- /*
- * Change the current keyboard to unicode, unless it
- * is currently in raw or off mode anyway. We
- * shouldn't interfere with X11's processing of the
- * key events.
- *
- * http://lists.freedesktop.org/archives/systemd-devel/2013-February/008573.html
- *
- */
-
- if (ioctl(fd, KDSKBMODE, K_UNICODE) < 0)
- r = -errno;
- }
-
- k = loop_write(fd, "\033%G", 3, false);
- if (k < 0)
- r = k;
-
- k = write_string_file("/sys/module/vt/parameters/default_utf8", "1");
- if (k < 0)
- r = k;
-
- if (r < 0)
- log_warning_errno(r, "Failed to enable UTF-8: %m");
-
- return r;
-}
-
-static bool keyboard_load_and_wait(const char *vc, const char *map, const char *map_toggle, bool utf8) {
- const char *args[8];
- int i = 0;
- pid_t pid;
-
- /* An empty map means kernel map */
- if (isempty(map))
- return true;
-
- args[i++] = KBD_LOADKEYS;
- args[i++] = "-q";
- args[i++] = "-C";
- args[i++] = vc;
- if (utf8)
- args[i++] = "-u";
- args[i++] = map;
- if (map_toggle)
- args[i++] = map_toggle;
- args[i++] = NULL;
-
- pid = fork();
- if (pid < 0) {
- log_error_errno(errno, "Failed to fork: %m");
- return false;
- } else if (pid == 0) {
- execv(args[0], (char **) args);
- _exit(EXIT_FAILURE);
- }
-
- return wait_for_terminate_and_warn(KBD_LOADKEYS, pid, true) == 0;
-}
-
-static bool font_load_and_wait(const char *vc, const char *font, const char *map, const char *unimap) {
- const char *args[9];
- int i = 0;
- pid_t pid;
-
- /* An empty font means kernel font */
- if (isempty(font))
- return true;
-
- args[i++] = KBD_SETFONT;
- args[i++] = "-C";
- args[i++] = vc;
- args[i++] = font;
- if (map) {
- args[i++] = "-m";
- args[i++] = map;
- }
- if (unimap) {
- args[i++] = "-u";
- args[i++] = unimap;
- }
- args[i++] = NULL;
-
- pid = fork();
- if (pid < 0) {
- log_error_errno(errno, "Failed to fork: %m");
- return false;
- } else if (pid == 0) {
- execv(args[0], (char **) args);
- _exit(EXIT_FAILURE);
- }
-
- return wait_for_terminate_and_warn(KBD_SETFONT, pid, true) == 0;
-}
-
-/*
- * A newly allocated VT uses the font from the active VT. Here
- * we update all possibly already allocated VTs with the configured
- * font. It also allows to restart systemd-vconsole-setup.service,
- * to apply a new font to all VTs.
- */
-static void font_copy_to_all_vcs(int fd) {
- struct vt_stat vcs = {};
- unsigned char map8[E_TABSZ];
- unsigned short map16[E_TABSZ];
- struct unimapdesc unimapd;
- struct unipair unipairs[USHRT_MAX];
- int i, r;
-
- /* get active, and 16 bit mask of used VT numbers */
- r = ioctl(fd, VT_GETSTATE, &vcs);
- if (r < 0)
- return;
-
- for (i = 1; i <= 15; i++) {
- char vcname[16];
- _cleanup_close_ int vcfd = -1;
- struct console_font_op cfo = {};
-
- if (i == vcs.v_active)
- continue;
-
- /* skip non-allocated ttys */
- snprintf(vcname, sizeof(vcname), "/dev/vcs%i", i);
- if (access(vcname, F_OK) < 0)
- continue;
-
- snprintf(vcname, sizeof(vcname), "/dev/tty%i", i);
- vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
- if (vcfd < 0)
- continue;
-
- /* copy font from active VT, where the font was uploaded to */
- cfo.op = KD_FONT_OP_COPY;
- cfo.height = vcs.v_active-1; /* tty1 == index 0 */
- (void) ioctl(vcfd, KDFONTOP, &cfo);
-
- /* copy map of 8bit chars */
- if (ioctl(fd, GIO_SCRNMAP, map8) >= 0)
- (void) ioctl(vcfd, PIO_SCRNMAP, map8);
-
- /* copy map of 8bit chars -> 16bit Unicode values */
- if (ioctl(fd, GIO_UNISCRNMAP, map16) >= 0)
- (void) ioctl(vcfd, PIO_UNISCRNMAP, map16);
-
- /* copy unicode translation table */
- /* unimapd is a ushort count and a pointer to an
- array of struct unipair { ushort, ushort } */
- unimapd.entries = unipairs;
- unimapd.entry_ct = USHRT_MAX;
- if (ioctl(fd, GIO_UNIMAP, &unimapd) >= 0) {
- struct unimapinit adv = { 0, 0, 0 };
-
- (void) ioctl(vcfd, PIO_UNIMAPCLR, &adv);
- (void) ioctl(vcfd, PIO_UNIMAP, &unimapd);
- }
- }
-}
-
-int main(int argc, char **argv) {
- const char *vc;
- _cleanup_free_ char
- *vc_keymap = NULL, *vc_keymap_toggle = NULL,
- *vc_font = NULL, *vc_font_map = NULL, *vc_font_unimap = NULL;
- _cleanup_close_ int fd = -1;
- bool utf8;
- bool font_copy = false, font_ok, keyboard_ok;
- int r = EXIT_FAILURE;
-
- log_set_target(LOG_TARGET_AUTO);
- log_parse_environment();
- log_open();
-
- umask(0022);
-
- if (argv[1])
- vc = argv[1];
- else {
- vc = "/dev/tty0";
- font_copy = true;
- }
-
- fd = open_terminal(vc, O_RDWR|O_CLOEXEC);
- if (fd < 0) {
- log_error_errno(errno, "Failed to open %s: %m", vc);
- return EXIT_FAILURE;
- }
-
- if (!is_vconsole(fd)) {
- log_error("Device %s is not a virtual console.", vc);
- return EXIT_FAILURE;
- }
-
- utf8 = is_locale_utf8();
-
- r = parse_env_file("/etc/vconsole.conf", NEWLINE,
- "KEYMAP", &vc_keymap,
- "KEYMAP_TOGGLE", &vc_keymap_toggle,
- "FONT", &vc_font,
- "FONT_MAP", &vc_font_map,
- "FONT_UNIMAP", &vc_font_unimap,
- NULL);
-
- if (r < 0 && r != -ENOENT)
- log_warning_errno(r, "Failed to read /etc/vconsole.conf: %m");
-
- /* Let the kernel command line override /etc/vconsole.conf */
- if (detect_container(NULL) <= 0) {
- r = parse_env_file("/proc/cmdline", WHITESPACE,
- "vconsole.keymap", &vc_keymap,
- "vconsole.keymap.toggle", &vc_keymap_toggle,
- "vconsole.font", &vc_font,
- "vconsole.font.map", &vc_font_map,
- "vconsole.font.unimap", &vc_font_unimap,
- NULL);
-
- if (r < 0 && r != -ENOENT)
- log_warning_errno(r, "Failed to read /proc/cmdline: %m");
- }
-
- if (utf8)
- enable_utf8(fd);
- else
- disable_utf8(fd);
-
- font_ok = font_load_and_wait(vc, vc_font, vc_font_map, vc_font_unimap);
- keyboard_ok = keyboard_load_and_wait(vc, vc_keymap, vc_keymap_toggle, utf8);
-
- /* Only copy the font when we executed setfont successfully */
- if (font_copy && font_ok)
- font_copy_to_all_vcs(fd);
-
- return font_ok && keyboard_ok ? EXIT_SUCCESS : EXIT_FAILURE;
-}
~ianmdlvl / elogind.git / commitdiff