roconnor@xxxxxxxxxx wrote:
> I also tried adding the flag `-p0' to the losetup command. This also
> works. Of course, there is no prompt, and the password appears in plain
> text on the console. Obviously that isn't an acceptable solution.
At first I thought this could be library dependency problem, but if -p0
works, that means losetup and gpg library dependencies are OK.
> I guess that there is something strange going on between how losetup calls
> gnupg and how gnupg gets and manipluates the console to prompt for and get
> the password (without echoing to the console), but I really don't know how
> to proceed to debugging this. Maybe someone more familiar with losetup
> and the linux boot process may have some idea what may have changed in
> this Kubuntu upgrade that would cause the problem I described.
Password prompt comes from losetup that calls getpass() library funtion.
Then losetup starts gpg and sends the password to gpg via a pipe.
Can you make sure that a /dev/tty device node exists at the time losetup
runs in your boot script? If I remember correctly, getpass() library funtion
opens /dev/tty device.
What happens if you add this line to your boot script right before losetup
is called?
mknod /dev/tty c 5 0
Plan B:
~~~~~~~
Can you change one line of util-linux mount/lomount.c main() function, so
that line number 1240:
setlocale(LC_ALL, "");
becomes this:
setlocale(LC_ALL, ""); ioctl(0, TIOCSCTTY, 0);
That ioctl() sets controlling tty if not already set.
--
Jari Ruusu 1024R/3A220F51 5B 4B F9 BB D3 3F 52 E9 DB 1D EB E3 24 0E A9 DD
-
Linux-crypto: cryptography in and on the Linux system
Archive: http://mail.nl.linux.org/linux-crypto/
