diff options
Diffstat (limited to 'src/vconsole/vconsole-setup.c')
-rw-r--r-- | src/vconsole/vconsole-setup.c | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/src/vconsole/vconsole-setup.c b/src/vconsole/vconsole-setup.c deleted file mode 100644 index fe8573f929..0000000000 --- a/src/vconsole/vconsole-setup.c +++ /dev/null @@ -1,304 +0,0 @@ -/*-*- 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; -} |