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Current Path: /usr/lib/dracut/modules.d/98ecryptfs

usr / lib / dracut / modules.d / 98ecryptfs /

ðŸ“ ..
ðŸ“„ README(2.29 KB)
ðŸ“„ ecryptfs-mount.sh(2.68 KB)
ðŸ“„ module-setup.sh(276 B)

Editing: ecryptfs-mount.sh

#!/bin/sh

# Licensed under the GPLv2
#
# Copyright (C) 2011 Politecnico di Torino, Italy
#                    TORSEC group -- http://security.polito.it
# Roberto Sassu <roberto.sassu@polito.it>

ECRYPTFSCONFIG="${NEWROOT}/etc/sysconfig/ecryptfs"
ECRYPTFSKEYTYPE="encrypted"
ECRYPTFSKEYDESC="1000100010001000"
ECRYPTFSKEYID=""
ECRYPTFSSRCDIR="/secret"
ECRYPTFS_EXTRA_MOUNT_OPTS=""

load_ecryptfs_key()
{
    # override the eCryptfs key path name from the 'ecryptfskey=' parameter in the kernel
    # command line
    ECRYPTFSKEYARG=$(getarg ecryptfskey=)
    [ $? -eq 0 ] && \
        ECRYPTFSKEY=${ECRYPTFSKEYARG}

# set the default value
    [ -z "${ECRYPTFSKEY}" ] && \
        ECRYPTFSKEY="/etc/keys/ecryptfs-trusted.blob";

# set the eCryptfs key path name
    ECRYPTFSKEYPATH="${NEWROOT}${ECRYPTFSKEY}"

# check for eCryptfs encrypted key's existence
    if [ ! -f "${ECRYPTFSKEYPATH}" ]; then
        if [ "${RD_DEBUG}" = "yes" ]; then
            info "eCryptfs: key file not found: ${ECRYPTFSKEYPATH}"
        fi
        return 1
    fi

# read the eCryptfs encrypted key blob
    KEYBLOB=$(cat ${ECRYPTFSKEYPATH})

# load the eCryptfs encrypted key blob
    ECRYPTFSKEYID=$(keyctl add ${ECRYPTFSKEYTYPE} ${ECRYPTFSKEYDESC} "load ${KEYBLOB}" @u)
    [ $? -eq 0 ] || {
        info "eCryptfs: failed to load the eCryptfs key: ${ECRYPTFSKEYDESC}";
        return 1;
    }

return 0
}

unload_ecryptfs_key()
{
    # unlink the eCryptfs encrypted key
    keyctl unlink ${ECRYPTFSKEYID} @u || {
        info "eCryptfs: failed to unlink the eCryptfs key: ${ECRYPTFSKEYDESC}";
        return 1;
    }

return 0
}

mount_ecryptfs()
{
    # read the configuration from the config file
    [ -f "${ECRYPTFSCONFIG}" ] && \
        . ${ECRYPTFSCONFIG}

# load the eCryptfs encrypted key
    load_ecryptfs_key || return 1

# set the default value for ECRYPTFSDSTDIR
    [ -z "${ECRYPTFSDSTDIR}" ] && \
        ECRYPTFSDSTDIR=${ECRYPTFSSRCDIR}

# set the eCryptfs filesystem mount point
    ECRYPTFSSRCMNT="${NEWROOT}${ECRYPTFSSRCDIR}"
    ECRYPTFSDSTMNT="${NEWROOT}${ECRYPTFSDSTDIR}"

# build the mount options variable
    ECRYPTFS_MOUNT_OPTS="ecryptfs_sig=${ECRYPTFSKEYDESC}"
    [ ! -z "${ECRYPTFS_EXTRA_MOUNT_OPTS}" ] && \
        ECRYPTFS_MOUNT_OPTS="${ECRYPTFS_MOUNT_OPTS},${ECRYPTFS_EXTRA_MOUNT_OPTS}"

# mount the eCryptfs filesystem
    info "Mounting the configured eCryptfs filesystem"
    mount -i -t ecryptfs -o${ECRYPTFS_MOUNT_OPTS} ${ECRYPTFSSRCMNT} ${ECRYPTFSDSTMNT} >/dev/null || {
        info "eCryptfs: mount of the eCryptfs filesystem failed";
        return 1;
    }

# unload the eCryptfs encrypted key
    unload_ecryptfs_key || return 1

return 0
}

mount_ecryptfs

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Editing: ecryptfs-mount.sh

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