Franck Bui
58161db61b
Regardless of whether a vc path is passed, the behavior of systemd-vconsole-setup wasn't ideal when either the passed vc or /dev/tty1 was in graphics mode. When a vc in graphics mode was passed, no message was emitted despite the fact that the font settings couldn't be applied. The previous code might have assumed that setfont(8) would throw a warning but that's not case. When no argument was passed, systemd-vconsole-setup was supposed to automatically select a valid tty, init it and copy the font setting to the remaining ttys. However if the selected virtual console was in KD_GRAPHICS mode the initialization of the font failed not only for the selected source vc but for all of them.
657 lines
22 KiB
C
657 lines
22 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
/***
|
|
Copyright © 2016 Michal Soltys <soltys@ziu.info>
|
|
***/
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include <linux/kd.h>
|
|
#include <linux/tiocl.h>
|
|
#include <linux/vt.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <sys/file.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sysexits.h>
|
|
#include <termios.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#include "alloc-util.h"
|
|
#include "creds-util.h"
|
|
#include "dev-setup.h"
|
|
#include "env-file.h"
|
|
#include "errno-util.h"
|
|
#include "fd-util.h"
|
|
#include "fileio.h"
|
|
#include "io-util.h"
|
|
#include "locale-util.h"
|
|
#include "log.h"
|
|
#include "main-func.h"
|
|
#include "proc-cmdline.h"
|
|
#include "process-util.h"
|
|
#include "signal-util.h"
|
|
#include "stdio-util.h"
|
|
#include "string-util.h"
|
|
#include "strv.h"
|
|
#include "terminal-util.h"
|
|
#include "virt.h"
|
|
|
|
typedef enum VCMeta {
|
|
VC_KEYMAP,
|
|
VC_KEYMAP_TOGGLE,
|
|
VC_FONT,
|
|
VC_FONT_MAP,
|
|
VC_FONT_UNIMAP,
|
|
_VC_META_MAX,
|
|
_VC_META_INVALID = -EINVAL,
|
|
} VCMeta;
|
|
|
|
typedef struct Context {
|
|
char *config[_VC_META_MAX];
|
|
} Context;
|
|
|
|
static const char * const vc_meta_names[_VC_META_MAX] = {
|
|
[VC_KEYMAP] = "vconsole.keymap",
|
|
[VC_KEYMAP_TOGGLE] = "vconsole.keymap_toggle",
|
|
[VC_FONT] = "vconsole.font",
|
|
[VC_FONT_MAP] = "vconsole.font_map",
|
|
[VC_FONT_UNIMAP] = "vconsole.font_unimap",
|
|
};
|
|
|
|
/* compatibility with obsolete multiple-dot scheme */
|
|
static const char * const vc_meta_compat_names[_VC_META_MAX] = {
|
|
[VC_KEYMAP_TOGGLE] = "vconsole.keymap.toggle",
|
|
[VC_FONT_MAP] = "vconsole.font.map",
|
|
[VC_FONT_UNIMAP] = "vconsole.font.unimap",
|
|
};
|
|
|
|
static const char * const vc_env_names[_VC_META_MAX] = {
|
|
[VC_KEYMAP] = "KEYMAP",
|
|
[VC_KEYMAP_TOGGLE] = "KEYMAP_TOGGLE",
|
|
[VC_FONT] = "FONT",
|
|
[VC_FONT_MAP] = "FONT_MAP",
|
|
[VC_FONT_UNIMAP] = "FONT_UNIMAP",
|
|
};
|
|
|
|
static void context_done(Context *c) {
|
|
assert(c);
|
|
|
|
FOREACH_ARRAY(cc, c->config, _VC_META_MAX)
|
|
free(*cc);
|
|
}
|
|
|
|
static void context_merge_config(
|
|
Context *dst,
|
|
Context *src,
|
|
Context *src_compat) {
|
|
|
|
assert(dst);
|
|
assert(src);
|
|
|
|
for (VCMeta i = 0; i < _VC_META_MAX; i++)
|
|
if (src->config[i])
|
|
free_and_replace(dst->config[i], src->config[i]);
|
|
else if (src_compat && src_compat->config[i])
|
|
free_and_replace(dst->config[i], src_compat->config[i]);
|
|
}
|
|
|
|
static const char* context_get_config(Context *c, VCMeta meta) {
|
|
assert(c);
|
|
assert(meta >= 0 && meta < _VC_META_MAX);
|
|
|
|
if (meta == VC_KEYMAP)
|
|
return isempty(c->config[VC_KEYMAP]) ? SYSTEMD_DEFAULT_KEYMAP : c->config[VC_KEYMAP];
|
|
|
|
return empty_to_null(c->config[meta]);
|
|
}
|
|
|
|
static int context_read_creds(Context *c) {
|
|
_cleanup_(context_done) Context v = {};
|
|
int r;
|
|
|
|
assert(c);
|
|
|
|
r = read_credential_strings_many(
|
|
vc_meta_names[VC_KEYMAP], &v.config[VC_KEYMAP],
|
|
vc_meta_names[VC_KEYMAP_TOGGLE], &v.config[VC_KEYMAP_TOGGLE],
|
|
vc_meta_names[VC_FONT], &v.config[VC_FONT],
|
|
vc_meta_names[VC_FONT_MAP], &v.config[VC_FONT_MAP],
|
|
vc_meta_names[VC_FONT_UNIMAP], &v.config[VC_FONT_UNIMAP]);
|
|
if (r < 0)
|
|
log_warning_errno(r, "Failed to import credentials, ignoring: %m");
|
|
|
|
context_merge_config(c, &v, NULL);
|
|
return 0;
|
|
}
|
|
|
|
static int context_read_env(Context *c) {
|
|
_cleanup_(context_done) Context v = {};
|
|
int r;
|
|
|
|
assert(c);
|
|
|
|
r = parse_env_file(
|
|
NULL, "/etc/vconsole.conf",
|
|
vc_env_names[VC_KEYMAP], &v.config[VC_KEYMAP],
|
|
vc_env_names[VC_KEYMAP_TOGGLE], &v.config[VC_KEYMAP_TOGGLE],
|
|
vc_env_names[VC_FONT], &v.config[VC_FONT],
|
|
vc_env_names[VC_FONT_MAP], &v.config[VC_FONT_MAP],
|
|
vc_env_names[VC_FONT_UNIMAP], &v.config[VC_FONT_UNIMAP]);
|
|
if (r < 0) {
|
|
if (r != -ENOENT)
|
|
log_warning_errno(r, "Failed to read /etc/vconsole.conf, ignoring: %m");
|
|
return r;
|
|
}
|
|
|
|
context_merge_config(c, &v, NULL);
|
|
return 0;
|
|
}
|
|
|
|
static int context_read_proc_cmdline(Context *c) {
|
|
_cleanup_(context_done) Context v = {}, w = {};
|
|
int r;
|
|
|
|
assert(c);
|
|
|
|
r = proc_cmdline_get_key_many(
|
|
PROC_CMDLINE_STRIP_RD_PREFIX,
|
|
vc_meta_names[VC_KEYMAP], &v.config[VC_KEYMAP],
|
|
vc_meta_names[VC_KEYMAP_TOGGLE], &v.config[VC_KEYMAP_TOGGLE],
|
|
vc_meta_names[VC_FONT], &v.config[VC_FONT],
|
|
vc_meta_names[VC_FONT_MAP], &v.config[VC_FONT_MAP],
|
|
vc_meta_names[VC_FONT_UNIMAP], &v.config[VC_FONT_UNIMAP],
|
|
vc_meta_compat_names[VC_KEYMAP_TOGGLE], &w.config[VC_KEYMAP_TOGGLE],
|
|
vc_meta_compat_names[VC_FONT_MAP], &w.config[VC_FONT_MAP],
|
|
vc_meta_compat_names[VC_FONT_UNIMAP], &w.config[VC_FONT_UNIMAP]);
|
|
if (r < 0) {
|
|
if (r != -ENOENT)
|
|
log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");
|
|
return r;
|
|
}
|
|
|
|
context_merge_config(c, &v, &w);
|
|
return 0;
|
|
}
|
|
|
|
static void context_load_config(Context *c) {
|
|
assert(c);
|
|
|
|
/* Load data from credentials (lowest priority) */
|
|
(void) context_read_creds(c);
|
|
|
|
/* Load data from configuration file (middle priority) */
|
|
(void) context_read_env(c);
|
|
|
|
/* Let the kernel command line override /etc/vconsole.conf (highest priority) */
|
|
(void) context_read_proc_cmdline(c);
|
|
}
|
|
|
|
static int verify_vc_device(int fd) {
|
|
unsigned char data[] = {
|
|
TIOCL_GETFGCONSOLE,
|
|
};
|
|
|
|
return RET_NERRNO(ioctl(fd, TIOCLINUX, data));
|
|
}
|
|
|
|
static int verify_vc_allocation(unsigned idx) {
|
|
char vcname[sizeof("/dev/vcs") + DECIMAL_STR_MAX(unsigned) - 2];
|
|
|
|
xsprintf(vcname, "/dev/vcs%u", idx);
|
|
|
|
return RET_NERRNO(access(vcname, F_OK));
|
|
}
|
|
|
|
static int verify_vc_allocation_byfd(int fd) {
|
|
struct vt_stat vcs = {};
|
|
|
|
if (ioctl(fd, VT_GETSTATE, &vcs) < 0)
|
|
return -errno;
|
|
|
|
return verify_vc_allocation(vcs.v_active);
|
|
}
|
|
|
|
static int verify_vc_kbmode(int fd) {
|
|
int curr_mode;
|
|
|
|
assert(fd >= 0);
|
|
|
|
/*
|
|
* Make sure we only adjust consoles in K_XLATE or K_UNICODE mode.
|
|
* Otherwise we would (likely) interfere with X11's processing of the
|
|
* key events.
|
|
*
|
|
* https://lists.freedesktop.org/archives/systemd-devel/2013-February/008573.html
|
|
*/
|
|
|
|
if (ioctl(fd, KDGKBMODE, &curr_mode) < 0)
|
|
return -errno;
|
|
|
|
return IN_SET(curr_mode, K_XLATE, K_UNICODE) ? 0 : -EBUSY;
|
|
}
|
|
|
|
static int verify_vc_display_mode(int fd) {
|
|
int mode;
|
|
|
|
assert(fd >= 0);
|
|
|
|
/* Similarly the vc is likely busy if it is in KD_GRAPHICS mode. If it's not the case and it's been
|
|
* left in graphics mode, the kernel will refuse to operate on the font settings anyway. */
|
|
|
|
if (ioctl(fd, KDGETMODE, &mode) < 0)
|
|
return -errno;
|
|
|
|
return mode != KD_TEXT ? -EBUSY : 0;
|
|
}
|
|
|
|
static int toggle_utf8_vc(const char *name, int fd, bool utf8) {
|
|
int r;
|
|
struct termios tc = {};
|
|
|
|
assert(name);
|
|
assert(fd >= 0);
|
|
|
|
r = ioctl(fd, KDSKBMODE, utf8 ? K_UNICODE : K_XLATE);
|
|
if (r < 0)
|
|
return log_warning_errno(errno, "Failed to %s UTF-8 kbdmode on %s: %m", enable_disable(utf8), name);
|
|
|
|
r = loop_write(fd, utf8 ? "\033%G" : "\033%@", SIZE_MAX);
|
|
if (r < 0)
|
|
return log_warning_errno(r, "Failed to %s UTF-8 term processing on %s: %m", enable_disable(utf8), name);
|
|
|
|
r = tcgetattr(fd, &tc);
|
|
if (r >= 0) {
|
|
SET_FLAG(tc.c_iflag, IUTF8, utf8);
|
|
r = tcsetattr(fd, TCSANOW, &tc);
|
|
}
|
|
if (r < 0)
|
|
return log_warning_errno(errno, "Failed to %s iutf8 flag on %s: %m", enable_disable(utf8), name);
|
|
|
|
log_debug("UTF-8 kbdmode %sd on %s", enable_disable(utf8), name);
|
|
return 0;
|
|
}
|
|
|
|
static int toggle_utf8_sysfs(bool utf8) {
|
|
int r;
|
|
|
|
r = write_string_file("/sys/module/vt/parameters/default_utf8", one_zero(utf8), WRITE_STRING_FILE_DISABLE_BUFFER);
|
|
if (r < 0)
|
|
return log_warning_errno(r, "Failed to %s sysfs UTF-8 flag: %m", enable_disable(utf8));
|
|
|
|
log_debug("Sysfs UTF-8 flag %sd", enable_disable(utf8));
|
|
return 0;
|
|
}
|
|
|
|
static int keyboard_load_and_wait(const char *vc, Context *c, bool utf8) {
|
|
const char *map, *map_toggle, *args[8];
|
|
unsigned i = 0;
|
|
pid_t pid;
|
|
int r;
|
|
|
|
assert(vc);
|
|
assert(c);
|
|
|
|
map = context_get_config(c, VC_KEYMAP);
|
|
map_toggle = context_get_config(c, VC_KEYMAP_TOGGLE);
|
|
|
|
/* An empty map means kernel map */
|
|
if (isempty(map) || streq(map, "@kernel"))
|
|
return 0;
|
|
|
|
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;
|
|
|
|
if (DEBUG_LOGGING) {
|
|
_cleanup_free_ char *cmd = NULL;
|
|
|
|
cmd = strv_join((char**) args, " ");
|
|
log_debug("Executing \"%s\"...", strnull(cmd));
|
|
}
|
|
|
|
r = safe_fork("(loadkeys)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0) {
|
|
execv(args[0], (char **) args);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
return wait_for_terminate_and_check(KBD_LOADKEYS, pid, WAIT_LOG);
|
|
}
|
|
|
|
static int font_load_and_wait(const char *vc, Context *c) {
|
|
const char *font, *map, *unimap, *args[9];
|
|
unsigned i = 0;
|
|
pid_t pid;
|
|
int r;
|
|
|
|
assert(vc);
|
|
assert(c);
|
|
|
|
font = context_get_config(c, VC_FONT);
|
|
map = context_get_config(c, VC_FONT_MAP);
|
|
unimap = context_get_config(c, VC_FONT_UNIMAP);
|
|
|
|
/* Any part can be set independently */
|
|
if (!font && !map && !unimap)
|
|
return 0;
|
|
|
|
args[i++] = KBD_SETFONT;
|
|
args[i++] = "-C";
|
|
args[i++] = vc;
|
|
if (map) {
|
|
args[i++] = "-m";
|
|
args[i++] = map;
|
|
}
|
|
if (unimap) {
|
|
args[i++] = "-u";
|
|
args[i++] = unimap;
|
|
}
|
|
if (font)
|
|
args[i++] = font;
|
|
args[i++] = NULL;
|
|
|
|
if (DEBUG_LOGGING) {
|
|
_cleanup_free_ char *cmd = NULL;
|
|
|
|
cmd = strv_join((char**) args, " ");
|
|
log_debug("Executing \"%s\"...", strnull(cmd));
|
|
}
|
|
|
|
r = safe_fork("(setfont)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0) {
|
|
execv(args[0], (char **) args);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* setfont returns EX_OSERR when ioctl(KDFONTOP/PIO_FONTX/PIO_FONTX) fails. This might mean various
|
|
* things, but in particular lack of a graphical console. Let's be generous and not treat this as an
|
|
* error. */
|
|
r = wait_for_terminate_and_check(KBD_SETFONT, pid, WAIT_LOG_ABNORMAL);
|
|
if (r == EX_OSERR)
|
|
log_notice(KBD_SETFONT " failed with a \"system error\" (EX_OSERR), ignoring.");
|
|
else if (r >= 0 && r != EXIT_SUCCESS)
|
|
log_error(KBD_SETFONT " failed with exit status %i.", r);
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* A newly allocated VT uses the font from the source 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.
|
|
*
|
|
* We also setup per-console utf8 related stuff: kbdmode, term
|
|
* processing, stty iutf8.
|
|
*/
|
|
static void setup_remaining_vcs(int src_fd, unsigned src_idx, bool utf8) {
|
|
struct console_font_op cfo = {
|
|
.op = KD_FONT_OP_GET,
|
|
.width = UINT_MAX, .height = UINT_MAX,
|
|
.charcount = UINT_MAX,
|
|
};
|
|
struct unimapinit adv = {};
|
|
struct unimapdesc unimapd;
|
|
_cleanup_free_ struct unipair* unipairs = NULL;
|
|
_cleanup_free_ void *fontbuf = NULL;
|
|
int log_level = LOG_WARNING;
|
|
int r;
|
|
|
|
unipairs = new(struct unipair, USHRT_MAX);
|
|
if (!unipairs)
|
|
return (void) log_oom();
|
|
|
|
/* get metadata of the current font (width, height, count) */
|
|
r = ioctl(src_fd, KDFONTOP, &cfo);
|
|
if (r < 0) {
|
|
/* We might be called to operate on the dummy console (to setup keymap
|
|
* mainly) when fbcon deferred takeover is used for example. In such case,
|
|
* setting font is not supported and is expected to fail. */
|
|
if (errno == ENOSYS)
|
|
log_level = LOG_DEBUG;
|
|
|
|
log_full_errno(log_level, errno,
|
|
"KD_FONT_OP_GET failed while trying to get the font metadata: %m");
|
|
} else {
|
|
/* verify parameter sanity first */
|
|
if (cfo.width > 32 || cfo.height > 32 || cfo.charcount > 512)
|
|
log_warning("Invalid font metadata - width: %u (max 32), height: %u (max 32), count: %u (max 512)",
|
|
cfo.width, cfo.height, cfo.charcount);
|
|
else {
|
|
/*
|
|
* Console fonts supported by the kernel are limited in size to 32 x 32 and maximum 512
|
|
* characters. Thus with 1 bit per pixel it requires up to 65536 bytes. The height always
|
|
* requires 32 per glyph, regardless of the actual height - see the comment above #define
|
|
* max_font_size 65536 in drivers/tty/vt/vt.c for more details.
|
|
*/
|
|
fontbuf = malloc_multiply((cfo.width + 7) / 8 * 32, cfo.charcount);
|
|
if (!fontbuf) {
|
|
log_oom();
|
|
return;
|
|
}
|
|
/* get fonts from the source console */
|
|
cfo.data = fontbuf;
|
|
r = ioctl(src_fd, KDFONTOP, &cfo);
|
|
if (r < 0)
|
|
log_warning_errno(errno, "KD_FONT_OP_GET failed while trying to read the font data: %m");
|
|
else {
|
|
unimapd.entries = unipairs;
|
|
unimapd.entry_ct = USHRT_MAX;
|
|
r = ioctl(src_fd, GIO_UNIMAP, &unimapd);
|
|
if (r < 0)
|
|
log_warning_errno(errno, "GIO_UNIMAP failed while trying to read unicode mappings: %m");
|
|
else
|
|
cfo.op = KD_FONT_OP_SET;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (cfo.op != KD_FONT_OP_SET)
|
|
log_full(log_level, "Fonts will not be copied to remaining consoles");
|
|
|
|
for (unsigned i = 1; i <= 63; i++) {
|
|
char ttyname[sizeof("/dev/tty63")];
|
|
_cleanup_close_ int fd_d = -EBADF;
|
|
|
|
if (i == src_idx || verify_vc_allocation(i) < 0)
|
|
continue;
|
|
|
|
/* try to open terminal */
|
|
xsprintf(ttyname, "/dev/tty%u", i);
|
|
fd_d = open_terminal(ttyname, O_RDWR|O_CLOEXEC|O_NOCTTY);
|
|
if (fd_d < 0) {
|
|
log_warning_errno(fd_d, "Unable to open tty%u, fonts will not be copied: %m", i);
|
|
continue;
|
|
}
|
|
|
|
if (verify_vc_kbmode(fd_d) < 0)
|
|
continue;
|
|
|
|
(void) toggle_utf8_vc(ttyname, fd_d, utf8);
|
|
|
|
if (cfo.op != KD_FONT_OP_SET)
|
|
continue;
|
|
|
|
r = verify_vc_display_mode(fd_d);
|
|
if (r < 0) {
|
|
log_debug_errno(r, "KD_FONT_OP_SET skipped: tty%u is not in text mode", i);
|
|
continue;
|
|
}
|
|
|
|
if (ioctl(fd_d, KDFONTOP, &cfo) < 0) {
|
|
log_warning_errno(errno, "KD_FONT_OP_SET failed, fonts will not be copied to tty%u: %m", i);
|
|
continue;
|
|
}
|
|
|
|
/* Copy unicode translation table unimapd is a ushort count and a pointer
|
|
* to an array of struct unipair { ushort, ushort }. */
|
|
r = ioctl(fd_d, PIO_UNIMAPCLR, &adv);
|
|
if (r < 0) {
|
|
log_warning_errno(errno, "PIO_UNIMAPCLR failed, unimaps might be incorrect for tty%u: %m", i);
|
|
continue;
|
|
}
|
|
|
|
r = ioctl(fd_d, PIO_UNIMAP, &unimapd);
|
|
if (r < 0) {
|
|
log_warning_errno(errno, "PIO_UNIMAP failed, unimaps might be incorrect for tty%u: %m", i);
|
|
continue;
|
|
}
|
|
|
|
log_debug("Font and unimap successfully copied to %s", ttyname);
|
|
}
|
|
}
|
|
|
|
static int find_source_vc(char **ret_path, unsigned *ret_idx) {
|
|
int r, err = 0;
|
|
|
|
assert(ret_path);
|
|
assert(ret_idx);
|
|
|
|
for (unsigned i = 1; i <= 63; i++) {
|
|
_cleanup_close_ int fd = -EBADF;
|
|
_cleanup_free_ char *path = NULL;
|
|
|
|
r = verify_vc_allocation(i);
|
|
if (r < 0) {
|
|
log_debug_errno(r, "VC %u existence check failed, skipping: %m", i);
|
|
RET_GATHER(err, r);
|
|
continue;
|
|
}
|
|
|
|
if (asprintf(&path, "/dev/tty%u", i) < 0)
|
|
return log_oom();
|
|
|
|
fd = open_terminal(path, O_RDWR|O_CLOEXEC|O_NOCTTY);
|
|
if (fd < 0) {
|
|
log_debug_errno(fd, "Failed to open terminal %s, ignoring: %m", path);
|
|
RET_GATHER(err, r);
|
|
continue;
|
|
}
|
|
|
|
r = verify_vc_kbmode(fd);
|
|
if (r < 0) {
|
|
log_debug_errno(r, "Failed to check VC %s keyboard mode: %m", path);
|
|
RET_GATHER(err, r);
|
|
continue;
|
|
}
|
|
|
|
r = verify_vc_display_mode(fd);
|
|
if (r < 0) {
|
|
log_debug_errno(r, "Failed to check VC %s display mode: %m", path);
|
|
RET_GATHER(err, r);
|
|
continue;
|
|
}
|
|
|
|
/* all checks passed, return this one as a source console */
|
|
*ret_idx = i;
|
|
*ret_path = TAKE_PTR(path);
|
|
return TAKE_FD(fd);
|
|
}
|
|
|
|
return log_error_errno(err, "No usable source console found: %m");
|
|
}
|
|
|
|
static int verify_source_vc(char **ret_path, const char *src_vc) {
|
|
_cleanup_close_ int fd = -EBADF;
|
|
char *path;
|
|
int r;
|
|
|
|
fd = open_terminal(src_vc, O_RDWR|O_CLOEXEC|O_NOCTTY);
|
|
if (fd < 0)
|
|
return log_error_errno(fd, "Failed to open %s: %m", src_vc);
|
|
|
|
r = verify_vc_device(fd);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Device %s is not a virtual console: %m", src_vc);
|
|
|
|
r = verify_vc_allocation_byfd(fd);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Virtual console %s is not allocated: %m", src_vc);
|
|
|
|
r = verify_vc_kbmode(fd);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Virtual console %s is not in K_XLATE or K_UNICODE: %m", src_vc);
|
|
|
|
/* setfont(8) silently ignores when the font can't be applied due to the vc being in
|
|
* KD_GRAPHICS. Hence we continue to accept this case however we now let the user know that the vc
|
|
* will be initialized only partially.*/
|
|
r = verify_vc_display_mode(fd);
|
|
if (r < 0)
|
|
log_notice_errno(r, "Virtual console %s is not in KD_TEXT, font settings likely won't be applied.", src_vc);
|
|
|
|
path = strdup(src_vc);
|
|
if (!path)
|
|
return log_oom();
|
|
|
|
*ret_path = path;
|
|
return TAKE_FD(fd);
|
|
}
|
|
|
|
static int run(int argc, char **argv) {
|
|
_cleanup_(context_done) Context c = {};
|
|
_cleanup_free_ char *vc = NULL;
|
|
_cleanup_close_ int fd = -EBADF, lock_fd = -EBADF;
|
|
bool utf8, keyboard_ok;
|
|
unsigned idx = 0;
|
|
int r;
|
|
|
|
log_setup();
|
|
|
|
umask(0022);
|
|
|
|
if (argv[1])
|
|
fd = verify_source_vc(&vc, argv[1]);
|
|
else
|
|
fd = find_source_vc(&vc, &idx);
|
|
if (fd < 0)
|
|
return fd;
|
|
|
|
utf8 = is_locale_utf8();
|
|
|
|
context_load_config(&c);
|
|
|
|
/* Take lock around the remaining operation to avoid being interrupted by a tty reset operation
|
|
* performed for services with TTYVHangup=yes. */
|
|
lock_fd = lock_dev_console();
|
|
if (lock_fd < 0) {
|
|
log_full_errno(lock_fd == -ENOENT ? LOG_DEBUG : LOG_ERR,
|
|
lock_fd,
|
|
"Failed to lock /dev/console%s: %m",
|
|
lock_fd == -ENOENT ? ", ignoring" : "");
|
|
if (lock_fd != -ENOENT)
|
|
return lock_fd;
|
|
}
|
|
|
|
(void) toggle_utf8_sysfs(utf8);
|
|
(void) toggle_utf8_vc(vc, fd, utf8);
|
|
|
|
r = font_load_and_wait(vc, &c);
|
|
keyboard_ok = keyboard_load_and_wait(vc, &c, utf8) == 0;
|
|
|
|
if (idx > 0) {
|
|
if (r == 0)
|
|
setup_remaining_vcs(fd, idx, utf8);
|
|
else
|
|
log_full(r == EX_OSERR ? LOG_NOTICE : LOG_WARNING,
|
|
"Setting source virtual console failed, ignoring remaining ones.");
|
|
}
|
|
|
|
return IN_SET(r, 0, EX_OSERR) && keyboard_ok ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);
|