#!/bin/sh

set -e

PREREQ="cryptroot"

prereqs()
{
    echo "$PREREQ"
}

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

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

# Hooks for loading smartcard reading software into the initramfs

# Check whether cryptroot hook has installed decrypt_opensc script 
if [ ! -x ${DESTDIR}/keyscripts/decrypt_opensc ] ; then
    exit 0
fi

# Install cryptroot key files into initramfs
keys=$(sed 's/^\(.*,\|\)key=//; s/,.*//' ${DESTDIR}/conf/conf.d/cryptroot)

if [ "${keys}" != "none" ]; then
    if [ -z "${keys}" ]; then
        echo $0: Missing key files in ${DESTDIR}/conf/conf.d/cryptroot >&2
        cat ${DESTDIR}/conf/conf.d/cryptroot >&2
        exit 1
    fi
    for key in ${keys} ; do
        if [ ! -d ${DESTDIR}/$(dirname ${key}) ] ; then
            mkdir -p ${DESTDIR}/$(dirname ${key})
        fi
        cp ${key} ${DESTDIR}/${key}
    done
fi

# Install directories needed by smartcard reading daemon, command, and
# key-script
for dir in etc/opensc usr/lib/pcsc var/run tmp ; do
    if [ ! -d ${DESTDIR}/${dir} ] ; then mkdir -p ${DESTDIR}/${dir} ; fi
done

# Install pcscd daemon, drivers, conf file, and include libgcc as well since
# pcscd utilizes pthread_cancel
copy_exec /usr/sbin/pcscd 
cp -r /usr/lib/pcsc ${DESTDIR}/usr/lib
cp /etc/reader.conf ${DESTDIR}/etc

# Install opensc commands and conf file
copy_exec /usr/bin/opensc-tool
copy_exec /usr/bin/pkcs15-crypt
cp /etc/opensc/opensc.conf ${DESTDIR}/etc/opensc