#!/sbin/runscript
# Copyright 1999-2004 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-src/rc-scripts/init.d/crypto-loop,v 1.3 2004/04/21 17:09:18 vapier Exp $

cryptoconf="/etc/conf.d/cryptomount"

depend() {
     need checkroot
     before localmount
}

start() {
    local status="0"

    ebegin "Setting up dm-crypt mappings"
    
    if [ -e ${cryptconf} ]
    then
        /bin/egrep "^(mount|swap)" ${cryptoconf} | \
        while read mountline
        do
            local mount=
            local swap=
            local options=
            local makefs=

            eval ${mountline}
            
            if [ -n "${mount}" ]
            then
                local target=${mount}
                [ -z "${options}" ] && options="-y"
            elif [ -n "${swap}" ]
            then
                local target=${swap}
                [ -z "${options}" ] && options="-d /dev/random"
            else
                ewarn "Invalid line in /etc/conf.d/cryptomount: ${mountline}"
            fi

            ! /bin/cryptsetup status ${target}|egrep '\<active:' > /dev/null
            local configured=$?
        
            if [ ${configured} -eq 0 ]
            then
                einfo "  dm-crypt map ${target}"
                if ! /bin/cryptsetup ${options} create ${target} ${source} >/dev/console </dev/console
                then
                    ewarn "Failure configuring ${target}"
                    status=1
                else
                    if [ -n "${swap}" ]
                    then
                        [ -z "${makefs}" ] && makefs="mkswap"
                    fi

                    if [ -n "${makefs}" ]
                    then
                        einfo "  Creating filesystem on ${target}"
                        if ! ${makefs} /dev/mapper/${target} > /dev/null
                        then
                            ewarn "Failed to create filesystem on ${target}"
                            status=1
                        fi
                    fi
                fi
            else
                ewarn "  dm-crypt mapping ${target} is already configured"
                status=1
            fi
        done 
    fi
    ewend ${status} "Failed to setup a mapping or swap device."

    # We do not fail if some loop devices did not start ...
    return 0
}

# vim:ts=4