e3dc3e3066
Three new helpers will now be installed into ${libexecdir}:
- xbps-src-capchroot needs to have set CAP_SYS_CHROOT ep.
- xbps-src-chroot-cap{,u}mount: needs to have set CAP_SYS_ADMIN ep.
That means that libcap and setcap(8) are now required to install
xbps-src and use it as normal user.
--HG--
extra : convert_revision : 586d6526079e085f86bf3e393459d429f6f0ef99
112 lines
3.2 KiB
Bash
112 lines
3.2 KiB
Bash
#!/bin/sh
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#-
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# Copyright (c) 2010 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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# Umount stuff if SIGINT or SIGQUIT was caught
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trap umount_chroot_fs INT QUIT
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HANDLER="$1"
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. @@XBPS_INSTALL_ETCDIR@@/xbps-src.conf
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REQFS="sys proc dev xbps"
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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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*) blah=/${f};;
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esac
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[ ! -d ${blah} ] && echo "failed." && continue
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@@XBPS_INSTALL_LIBEXECDIR@@/xbps-src-chroot-capmount \
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${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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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 ${fs} from chroot... "
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@@XBPS_INSTALL_LIBEXECDIR@@/xbps-src-chroot-capumount \
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${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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# Remove created dirs
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[ -f ${XBPS_MASTERDIR}/.xbps_mount_bind_done ] && continue
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[ -d ${XBPS_MASTERDIR}/xbps ] && rmdir ${XBPS_MASTERDIR}/xbps
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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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