#!/bin/sh

PREREQ="cryptroot"

prereqs () {
	echo "$PREREQ"
}

case "$1" in
	prereqs)
		prereqs
		exit 0
	;;
esac


. /usr/share/initramfs-tools/hook-functions

# copy executables
copy_exec /lib/cryptsetup/naskpass              /lib/cryptsetup
copy_exec /lib/cryptsetup/naskshell             /bin
copy_exec /lib/cryptsetup/naskpass_check        /lib/cryptsetup
copy_exec /usr/sbin/sshd /sbin/sshd

# OpenSSH config directory
cp -R /etc/initramfs-tools/etc/ssh "${DESTDIR}/etc/"

# /root is required for a successful SSH login
if [ ! -r "${DESTDIR}/root" ]; then
	mkdir -p "${DESTDIR}/root"
	chown root:root "${DESTDIR}/root"
	chmod 0700 "${DESTDIR}/root"
fi

# libnss and nsswitch are required for a successful SSH login
copy_exec /usr/lib/$(dpkg-architecture -q DEB_HOST_MULTIARCH)/libnss_compat.so /usr/lib/$(dpkg-architecture -q DEB_HOST_MULTIARCH)/
if [ -r "${DESTDIR}/etc/nsswitch.conf" ]; then
echo "passwd:         compat" > "${DESTDIR}/etc/nsswitch.conf"
echo "group:          compat" >>"${DESTDIR}/etc/nsswitch.conf"
echo "shadow:         compat" >>"${DESTDIR}/etc/nsswitch.conf"
fi

# passwd, group, shadow entries to enable root with naskshell login
[ -r "${DESTDIR}/etc/passwd" ] || echo 'root:x:0:0:root:/root:/bin/naskshell' >"${DESTDIR}/etc/passwd"
[ -r "${DESTDIR}/etc/group" ] || echo 'root:x:0:' >"${DESTDIR}/etc/group"
[ -r "${DESTDIR}/etc/shadow" ] || echo 'root:*:15446:0:99999:7:::' >"${DESTDIR}/etc/shadow"

# terminfo is viable for ncurses programs
mkdir -p ${DESTDIR}/lib/terminfo/l
cp /lib/terminfo/l/linux ${DESTDIR}/lib/terminfo/l/

exit 0