diff options
Diffstat (limited to 'system/cryptsetup/dmcrypt.initd')
| -rw-r--r-- | system/cryptsetup/dmcrypt.initd | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/system/cryptsetup/dmcrypt.initd b/system/cryptsetup/dmcrypt.initd deleted file mode 100644 index 340b579b7..000000000 --- a/system/cryptsetup/dmcrypt.initd +++ /dev/null @@ -1,339 +0,0 @@ -#!/sbin/openrc-run -# Copyright 1999-2015 Gentoo Foundation -# Distributed under the terms of the GNU General Public License v2 - -depend() { - before checkfs fsck - - if grep -qs ^swap= "${conf_file}" ; then - before swap - fi -} - -# We support multiple dmcrypt instances based on $SVCNAME -conf_file="/etc/conf.d/${SVCNAME}" - -# Get splash helpers if available. -if [ -e /sbin/splash-functions.sh ] ; then - . /sbin/splash-functions.sh -fi - -# Setup mappings for an individual target/swap -# Note: This relies on variables localized in the main body below. -dm_crypt_execute() { - local dev ret mode foo - - if [ -z "${target}" -a -z "${swap}" ] ; then - return - fi - - # Set up default values. - : ${dmcrypt_key_timeout:=1} - : ${dmcrypt_max_timeout:=300} - : ${dmcrypt_retries:=5} - - # Handle automatic look up of the source path. - if [ -z "${source}" -a -n "${loop_file}" ] ; then - source=$(losetup --show -f "${loop_file}") - fi - case ${source} in - *=*) - source="$(findfs ${source})" - ;; - esac - if [ -z "${source}" ] || [ ! -e "${source}" ] ; then - ewarn "source \"${source}\" for ${target} missing, skipping..." - return - fi - - if [ -n "${target}" ] ; then - # let user set options, otherwise leave empty - : ${options:=' '} - elif [ -n "${swap}" ] ; then - if cryptsetup isLuks ${source} 2>/dev/null ; then - ewarn "The swap you have defined is a LUKS partition. Aborting crypt-swap setup." - return - fi - target=${swap} - # swap contents do not need to be preserved between boots, luks not required. - # suspend2 users should have initramfs's init handling their swap partition either way. - : ${options:='-c aes -h sha1 -d /dev/urandom'} - : ${pre_mount:='mkswap ${dev}'} - fi - - if [ -n "${loop_file}" ] ; then - dev="/dev/mapper/${target}" - ebegin " Setting up loop device ${source}" - losetup ${source} ${loop_file} - fi - - # cryptsetup: - # open <device> <name> # <device> is $source - # create <name> <device> # <name> is $target - local arg1="create" arg2="${target}" arg3="${source}" - if cryptsetup isLuks ${source} 2>/dev/null ; then - arg1="open" - arg2="${source}" - arg3="${target}" - fi - - # Older versions reported: - # ${target} is active: - # Newer versions report: - # ${target} is active[ and is in use.] - if cryptsetup status ${target} | egrep -q ' is active' ; then - einfo "dm-crypt mapping ${target} is already configured" - return - fi - splash svc_input_begin ${SVCNAME} >/dev/null 2>&1 - - # Handle keys - if [ -n "${key}" ] ; then - read_abort() { - # some colors - local ans savetty resettty - [ -z "${NORMAL}" ] && eval $(eval_ecolors) - einfon " $1? (${WARN}yes${NORMAL}/${GOOD}No${NORMAL}) " - shift - # This is ugly as s**t. But POSIX doesn't provide `read -t`, so - # we end up having to implement our own crap with stty/etc... - savetty=$(stty -g) - resettty='stty ${savetty}; trap - EXIT HUP INT TERM' - trap 'eval "${resettty}"' EXIT HUP INT TERM - stty -icanon - stty min 0 time "$(( $2 * 10 ))" - ans=$(dd count=1 bs=1 2>/dev/null) || ans='' - eval "${resettty}" - if [ -z "${ans}" ] ; then - printf '\r' - else - echo - fi - case ${ans} in - [yY]) return 0;; - *) return 1;; - esac - } - - # Notes: sed not used to avoid case where /usr partition is encrypted. - mode=${key##*:} && ( [ "${mode}" = "${key}" ] || [ -z "${mode}" ] ) && mode=reg - key=${key%:*} - case "${mode}" in - gpg|reg) - # handle key on removable device - if [ -n "${remdev}" ] ; then - # temp directory to mount removable device - local mntrem="${RC_SVCDIR}/dm-crypt-remdev.$$" - if [ ! -d "${mntrem}" ] ; then - if ! mkdir -p "${mntrem}" ; then - ewarn "${source} will not be decrypted ..." - einfo "Reason: Unable to create temporary mount point '${mntrem}'" - return - fi - fi - i=0 - einfo "Please insert removable device for ${target}" - while [ ${i} -lt ${dmcrypt_max_timeout} ] ; do - foo="" - if mount -n -o ro "${remdev}" "${mntrem}" 2>/dev/null >/dev/null ; then - # keyfile exists? - if [ ! -e "${mntrem}${key}" ] ; then - umount -n "${mntrem}" - rmdir "${mntrem}" - einfo "Cannot find ${key} on removable media." - read_abort "Abort" ${dmcrypt_key_timeout} && return - else - key="${mntrem}${key}" - break - fi - else - [ -e "${remdev}" ] \ - && foo="mount failed" \ - || foo="mount source not found" - fi - : $((i += 1)) - read_abort "Stop waiting after $i attempts (${foo})" -t 1 && return - done - else # keyfile ! on removable device - if [ ! -e "${key}" ] ; then - ewarn "${source} will not be decrypted ..." - einfo "Reason: keyfile ${key} does not exist." - return - fi - fi - ;; - *) - ewarn "${source} will not be decrypted ..." - einfo "Reason: mode ${mode} is invalid." - return - ;; - esac - else - mode=none - fi - ebegin " ${target} using: ${options} ${arg1} ${arg2} ${arg3}" - if [ "${mode}" = "gpg" ] ; then - : ${gpg_options:='-q -d'} - # gpg available ? - if command -v gpg >/dev/null ; then - i=0 - while [ ${i} -lt ${dmcrypt_retries} ] ; do - # paranoid, don't store key in a variable, pipe it so it stays very little in ram unprotected. - # save stdin stdout stderr "values" - timeout ${dmcrypt_max_timeout} gpg ${gpg_options} ${key} 2>/dev/null | \ - cryptsetup --key-file - ${options} ${arg1} ${arg2} ${arg3} - ret=$? - # The timeout command exits 124 when it times out. - [ ${ret} -eq 0 -o ${ret} -eq 124 ] && break - : $(( i += 1 )) - done - eend ${ret} "failure running cryptsetup" - else - ewarn "${source} will not be decrypted ..." - einfo "Reason: cannot find gpg application." - einfo "You have to install app-crypt/gnupg first." - einfo "If you have /usr on its own partition, try copying gpg to /bin ." - fi - else - if [ "${mode}" = "reg" ] ; then - cryptsetup ${options} -d ${key} ${arg1} ${arg2} ${arg3} - ret=$? - eend ${ret} "failure running cryptsetup" - else - cryptsetup ${options} ${arg1} ${arg2} ${arg3} - ret=$? - eend ${ret} "failure running cryptsetup" - fi - fi - if [ -d "${mntrem}" ] ; then - umount -n ${mntrem} 2>/dev/null >/dev/null - rmdir ${mntrem} 2>/dev/null >/dev/null - fi - splash svc_input_end ${SVCNAME} >/dev/null 2>&1 - - if [ ${ret} -ne 0 ] ; then - cryptfs_status=1 - else - if [ -n "${pre_mount}" ] ; then - dev="/dev/mapper/${target}" - eval ebegin \"" pre_mount: ${pre_mount}"\" - eval "${pre_mount}" > /dev/null - ewend $? || cryptfs_status=1 - fi - fi -} - -# Lookup optional bootparams -get_bootparam_val() { - # We're given something like: - # foo=bar=cow - # Return the "bar=cow" part. - case $1 in - *=*) - echo "${1#*=}" - ;; - esac -} - -start() { - local header=true cryptfs_status=0 - local gpg_options key loop_file target targetline options pre_mount post_mount source swap remdev - - local x - for x in $(cat /proc/cmdline) ; do - case "${x}" in - key_timeout=*) - dmcrypt_key_timeout=$(get_bootparam_val "${x}") - ;; - esac - done - - while read targetline <&3 ; do - case ${targetline} in - # skip comments and blank lines - ""|"#"*) continue ;; - # skip service-specific openrc configs #377927 - rc_*) continue ;; - esac - - ${header} && ebegin "Setting up dm-crypt mappings" - header=false - - # check for the start of a new target/swap - case ${targetline} in - target=*|swap=*) - # If we have a target queued up, then execute it - dm_crypt_execute - - # Prepare for the next target/swap by resetting variables - unset gpg_options key loop_file target options pre_mount post_mount source swap remdev - ;; - - gpg_options=*|remdev=*|key=*|loop_file=*|options=*|pre_mount=*|post_mount=*|source=*) - if [ -z "${target}${swap}" ] ; then - ewarn "Ignoring setting outside target/swap section: ${targetline}" - continue - fi - ;; - - dmcrypt_*=*) - # ignore global options - continue - ;; - - *) - ewarn "Skipping invalid line in ${conf_file}: ${targetline}" - ;; - esac - - # Queue this setting for the next call to dm_crypt_execute - eval "${targetline}" - done 3< ${conf_file} - - # If we have a target queued up, then execute it - dm_crypt_execute - - ewend ${cryptfs_status} "Failed to setup dm-crypt devices" -} - -stop() { - local line header - - # Break down all mappings - header=true - egrep "^(target|swap)=" ${conf_file} | \ - while read line ; do - ${header} && einfo "Removing dm-crypt mappings" - header=false - - target= swap= - eval ${line} - - [ -n "${swap}" ] && target=${swap} - if [ -z "${target}" ] ; then - ewarn "invalid line in ${conf_file}: ${line}" - continue - fi - - ebegin " ${target}" - cryptsetup remove ${target} - eend $? - done - - # Break down loop devices - header=true - grep '^source=./dev/loop' ${conf_file} | \ - while read line ; do - ${header} && einfo "Detaching dm-crypt loop devices" - header=false - - source= - eval ${line} - - ebegin " ${source}" - losetup -d "${source}" - eend $? - done - - return 0 -} |