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vconsole: use KD_FONT_OP_GET/SET to handle copying

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We now use KD_FONT_OP_GET & KD_FONT_OP_SET instead of
problematic KD_FONT_OP_COPY.
This commit is contained in:
Michal Soltys 2016-07-27 00:57:01 +02:00
parent c9d2b3d0f0
commit eb22d84b47
1 changed files with 69 additions and 30 deletions
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99
src/vconsole/vconsole-setup.c
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@ -196,11 +196,21 @@ static int font_load_and_wait(const char *vc, const char *font, const char *map,
* 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 font_copy_to_all_vcs(int fd) {
static void setup_remaining_vcs(int fd, bool utf8) {
struct console_font_op cfo = {
.op = KD_FONT_OP_GET, .flags = 0,
.width = 32, .height = 32,
.charcount = 512,
};
struct vt_stat vcs = {};
struct unimapinit adv = {};
struct unimapdesc unimapd;
_cleanup_free_ struct unipair* unipairs = NULL;
_cleanup_free_ void *fontbuf = NULL;
int i, r;
unipairs = new(struct unipair, USHRT_MAX);
@ -209,46 +219,73 @@ static void font_copy_to_all_vcs(int fd) {
return;
}
/* get active, and 16 bit mask of used VT numbers */
r = ioctl(fd, VT_GETSTATE, &vcs);
if (r < 0) {
log_debug_errno(errno, "VT_GETSTATE failed, ignoring: %m");
fontbuf = malloc(cfo.width * cfo.height * cfo.charcount / 8);
if (!fontbuf) {
log_oom();
return;
}
/* get active, and 16 bit mask of used VT numbers */
r = ioctl(fd, VT_GETSTATE, &vcs);
if (r < 0) {
log_warning_errno(errno, "VT_GETSTATE failed, ignoring remaining consoles: %m");
return;
}
/* get fonts from source console */
cfo.data = fontbuf;
r = ioctl(fd, KDFONTOP, &cfo);
if (r < 0)
log_warning_errno(errno, "KD_FONT_OP_GET failed, fonts will not be copied: %m");
else {
unimapd.entries = unipairs;
unimapd.entry_ct = USHRT_MAX;
r = ioctl(fd, GIO_UNIMAP, &unimapd);
if (r < 0)
log_warning_errno(errno, "GIO_UNIMAP failed, fonts will not be copied: %m");
else
cfo.op = KD_FONT_OP_SET;
}
for (i = 1; i <= 63; i++) {
char vcname[strlen("/dev/vcs") + DECIMAL_STR_MAX(int)];
_cleanup_close_ int vcfd = -1;
struct console_font_op cfo = {};
char ttyname[strlen("/dev/tty") + DECIMAL_STR_MAX(int)];
_cleanup_close_ int fd_d = -1;
if (i == vcs.v_active)
if (i == vcs.v_active || !is_allocated(i))
continue;
/* skip non-allocated ttys */
xsprintf(vcname, "/dev/vcs%i", i);
if (access(vcname, F_OK) < 0)
/* try to open terminal */
xsprintf(ttyname, "/dev/tty%i", i);
fd_d = open_terminal(ttyname, O_RDWR|O_CLOEXEC);
if (fd_d < 0) {
log_warning_errno(fd_d, "Unable to open tty%i, fonts will not be copied: %m", i);
continue;
}
if (!is_settable(fd_d))
continue;
xsprintf(vcname, "/dev/tty%i", i);
vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
if (vcfd < 0)
toggle_utf8(fd_d, utf8);
if (cfo.op != KD_FONT_OP_SET)
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);
r = ioctl(fd_d, KDFONTOP, &cfo);
if (r < 0) {
log_warning_errno(errno, "KD_FONT_OP_SET failed, fonts will not be copied to tty%i: %m", i);
continue;
}
/* 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);
r = ioctl(fd_d, PIO_UNIMAPCLR, &adv);
if (r < 0)
log_warning_errno(errno, "PIO_UNIMAPCLR failed, unimaps might be incorrect for tty%i: %m", i);
else {
r = ioctl(fd_d, PIO_UNIMAP, &unimapd);
if (r < 0)
log_warning_errno(errno, "PIO_UNIMAP failed, unimaps might be incorrect for tty%i: %m", i);
}
}
}
@ -325,13 +362,15 @@ int main(int argc, char **argv) {
toggle_utf8_sysfs(utf8);
toggle_utf8(fd, utf8);
font_ok = font_load_and_wait(vc, vc_font, vc_font_map, vc_font_unimap) == 0;
keyboard_ok = keyboard_load_and_wait(vc, vc_keymap, vc_keymap_toggle, utf8) == 0;
/* Only copy the font when we executed setfont successfully */
if (font_copy && font_ok)
(void) font_copy_to_all_vcs(fd);
if (font_copy) {
if (font_ok)
setup_remaining_vcs(fd, utf8);
else
log_warning("Setting source virtual console failed, ignoring remaining ones.");
}
return font_ok && keyboard_ok ? EXIT_SUCCESS : EXIT_FAILURE;
}