123 lines
3.2 KiB
Bash
123 lines
3.2 KiB
Bash
#!/bin/sh
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#-
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# Copyright (c) 2010-2011 Juan Romero Pardines.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#-
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HANDLER="$1"
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. @@XBPS_INSTALL_ETCDIR@@/xbps-src.conf
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if [ -n "${MASTERDIR}" ]; then
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export XBPS_MASTERDIR="${MASTERDIR}"
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fi
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if [ -n "${HOSTDIR}" ]; then
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export XBPS_HOSTDIR="${HOSTDIR}"
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fi
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REQFS="sys proc dev xbps host"
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mount_chroot_fs()
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{
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local cnt f blah dowrite
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for f in ${REQFS}; do
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if [ ! -f ${XBPS_MASTERDIR}/.${f}_mount_bind_done ]; then
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unset dowrite
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echo -n "=> Mounting /${f} in chroot... "
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if [ ! -d ${XBPS_MASTERDIR}/${f} ]; then
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mkdir -p ${XBPS_MASTERDIR}/${f}
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fi
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case ${f} in
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xbps)
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blah=${XBPS_DISTRIBUTIONDIR}
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dowrite="-w"
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;;
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host)
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blah=${XBPS_HOSTDIR}
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dowrite="-w"
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;;
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*) blah=/${f};;
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esac
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if [ -z "$XBPS_HOSTDIR" -a "$f" = "host" ]; then
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echo "unset, ignoring."
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continue
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fi
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[ ! -d ${blah} ] && echo "failed." && continue
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@@XBPS_INSTALL_LIBEXECDIR@@/capmount \
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${dowrite} ${blah} ${XBPS_MASTERDIR}/${f} \
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2>/dev/null
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if [ $? -eq 0 ]; then
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echo 1 > ${XBPS_MASTERDIR}/.${f}_mount_bind_done
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echo "done."
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else
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echo "FAILED!"
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exit 1
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fi
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else
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cnt=$(cat ${XBPS_MASTERDIR}/.${f}_mount_bind_done)
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cnt=$((${cnt} + 1))
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echo ${cnt} > ${XBPS_MASTERDIR}/.${f}_mount_bind_done
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fi
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done
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}
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umount_chroot_fs()
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{
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local fs dir cnt
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for fs in ${REQFS}; do
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[ ! -f ${XBPS_MASTERDIR}/.${fs}_mount_bind_done ] && continue
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cnt=$(cat ${XBPS_MASTERDIR}/.${fs}_mount_bind_done)
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if [ ${cnt} -gt 1 ]; then
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cnt=$((${cnt} - 1))
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echo ${cnt} > ${XBPS_MASTERDIR}/.${fs}_mount_bind_done
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else
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echo -n "=> Unmounting ${fs} from chroot... "
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@@XBPS_INSTALL_LIBEXECDIR@@/capumount \
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${XBPS_MASTERDIR} ${fs} 2>/dev/null
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if [ $? -eq 0 ]; then
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rm -f ${XBPS_MASTERDIR}/.${fs}_mount_bind_done
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echo "done."
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else
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echo "FAILED!!!"
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fi
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fi
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unset fs
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done
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}
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if [ $# -ne 1 ]; then
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echo "$0: mount || umount"
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exit 1
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fi
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case "${HANDLER}" in
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mount) mount_chroot_fs;;
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umount) umount_chroot_fs;;
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*) echo "$0: invalid target." && exit 1;;
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esac
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exit 0
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