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#!/bin/sh
# ugly: this variable is set during port install time
ezjail_prefix=EZJAIL_PREFIX
ezjail_etc=${ezjail_prefix}/etc
ezjail_jailcfgs=${ezjail_etc}/ezjail
if [ -f ${ezjail_etc}/ezjail.conf ]; then
. ${ezjail_etc}/ezjail.conf;
fi
# set defaults
ezjail_jaildir=${ezjail_jaildir:-"/usr/jails"}
ezjail_jailtemplate=${ezjail_jailtemplate:-"$ezjail_jaildir/newjail"}
ezjail_jailbase=${ezjail_jailbase:-"$ezjail_jaildir/basejail"}
ezjail_jailfull=${ezjail_jailfull:-"$ezjail_jaildir/fulljail"}
ezjail_sourcetree=${ezjail_sourcetree:-"/usr/src"}
ezjail_mount_enable=${ezjail_mount_enable:-"YES"}
ezjail_devfs_enable=${ezjail_devfs_enable:-"YES"}
ezjail_devfs_ruleset=${ezjail_devfs_ruleset:-"devfsrules_jail"}
ezjail_procfs_enable=${ezjail_procfs_enable:-"YES"}
ezjail_fdescfs_enable=${ezjail_fdescfs_enable:-"YES"}
function exerr () { echo $*; exit 1; }
# check for command
[ "$1" ] || exerr "Usage: `basename $0` [create|delete|list|update] {params}"
case "$1" in
######################## ezjail-admin CREATE ########################
create)
shift
args=`getopt xf:r: $*`
[ $? = 0 ] || exerr 'Usage: ezjail create [-f flavour] [-r jailroot] [-x] jailname jailip';
newjail_root=
newjail_flavour=
newjail_flav=
newjail_softlink=
newjail_fill="YES"
set -- $args
for arg do
case $arg in
-x) newjail_fill="NO"; shift;;
-r) newjail_root="$2"; shift 2;;
-f) newjail_flavour="$2"; shift 2;;
--) shift; break;;
esac
done;
newjail_name=$1; newjail_ip=$2;
# we need at least a name and an ip for new jail
[ "$newjail_name" -a "$newjail_ip" -a $# = 2 ] || exerr 'Usage: ezjail create [-f flavour] [-r jailroot] [-x] jailname jailip'
# check, whether IP is configured on a local interface, warn if it isnt
ping -c 1 -m 1 -t 1 -q $newjail_ip > /dev/null
[ $? = 0 ] || echo "Warning: IP $newjail_ip not configured on a local interface"
# check, whether ezjail-update has been called. existence of
# ezjail_jailbase is our indicator
[ -d $ezjail_jailbase ] || exerr "Error: base jail does not exist. Please run 'ezjail-admin update' first"
# relative paths don't make sense in rc.scripts
[ ${ezjail_jaildir#/} = ${ezjail_jaildir} ] && exerr "Error: Need an absolute path in ezjail_jaildir, it is currently set to: $ezjail_jaildir"
# jail names must not have names that irritate file systems,
# excluding dots from this list was done intentionally to
# allow foo.com style directory names, however, the jail
# name will be foo_com in most scripts
newjail_name=`echo $newjail_name | tr /~ __`;
newjail_root=${newjail_root:-"$ezjail_jaildir/$newjail_name"}
newjail_nname=`echo $newjail_name | tr . _`;
# if jail root specified on command line is not absolute,
# make it absolute inside our jail directory
[ ${newjail_root#/} = ${newjail_root} ] || newjail_root=$ezjail_jaildir/$newjail_root
# if jail root specified on command line does not lie
# within our jail directory, we need to create a softlink
if [ ${newjail_root##${ezjail_jaildir}} = $newjail_root ]; then
newjail_softlink=$ezjail_jaildir/`basename $newjail_root`
[ -e $newjail_softlink -a $newjail_fill = "YES" ] && exerr "Error: an ezjail already exists at $newjail_softlink"
fi
# do some sanity checks on the selected flavour (if any)
if [ "$newjail_flavour" ]; then
# simple case wins, most often you won't have a ezjail.flavour.FLAV
# AND a ./FLAV lying around. If you do, you won't need "./httpd"
# but /ezjail_etc/ezjail.flavour.httpd, whatever ./httpd would be
# For now exit with error, maybe just warn later.
[ -f "$newjail_flavour" ] && newjail_flav=${newjail_flavour}
# if flavour contains a '/', it aint a short name
if [ ${newjail_flavour} = ${newjail_flavour%/*} -a \
-f ${ezjail_etc}/ezjail.flavour.${newjail_flavour} ]; then
[ $newjail_flav ] && exerr "Note: flavour ${newjail_flavour} conflicts with file ./${newjail_flavour}"
$newjail_flav=${ezjail_etc}/ezjail.flavour.${newjail_flavour}
fi
fi
# now take a copy of our template jail
if [ "$newjail_fill" = "YES" ]; then
mkdir -p ${newjail_root} && cd ${ezjail_jailtemplate} && \
find * | cpio -p -v ${newjail_root}
fi
# if a soft link is necessary, create it now
[ "$newjail_softlink" ] && ln -s $newjail_root $newjail_softlink
# if the automount feature is not disabled, create an
# fstab entry for new jail
echo $ezjail_jailbase $newjail_root/basejail nullfs ro 0 0 > /etc/fstab.$newjail_nname
# now, where everything seems to have gone right,
# create control file in ezjails config dir
mkdir -p $ezjail_jailcfgs
echo export jail_${newjail_nname}_hostname=\"${newjail_name}\" > ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_ip=\"${newjail_ip}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_rootdir=\"${newjail_root}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_exec=\"/bin/sh /etc/rc\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_mount_enable=\"${ezjail_mount_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_devfs_enable=\"${ezjail_devfs_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_devfs_ruleset=\"devfsrules_jail\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_procfs_enable=\"${ezjail_procfs_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
echo export jail_${newjail_nname}_fdescfs_enable=\"${ezjail_fdescfs_enable}\" >> ${ezjail_jailcfgs}/${newjail_nname}
;;
delete)
######################## ezjail-admin DELETE ########################
shift
args=`getopt w $*`
[ $? = 0 ] || exerr 'Usage: ezjail delete [-w] jailname'; exit 1;
oldjail_wipe="NO"
set -- $args
for arg do
case $arg in
-w) oldjail_wipe="YES"; shift;;
--) shift; break;;
esac
done;
oldjail_name=$1;
# we only need name of jail to vanish
[ "$oldjail_name" -a $# = 1 ] || exerr 'Usage: ezjail delete [-w] jailname'
# tidy up jail name the ezjail way
oldjail_nname=`echo $oldjail_name | tr /~. ___`;
# check for existence of jail in our records
[ -f ${ezjail_jailcfgs}/${oldjail_nname} ] || exerr "Error: Nothing known about jail $oldjail_name"
# fetch information about the jail to be gone
# by parsing our records
. ${ezjail_jailcfgs}/${oldjail_nname}
eval oldjail_rootdir=\"\$jail_${oldjail_nname}_rootdir\"
# if jail is still running, refuse to go any further
if [ -f /var/run/jail_${oldjail_nname}.id ]; then
echo "Error: Jail appears to be still running, stop it first"
echo "(/var/run/jail_${oldjail_nname}.id exists)"
exit 1;
fi
# now we know everything we need to let the jail be gone
# remove entry from ezjail resource structure
rm -f ${ezjail_jailcfgs}/${oldjail_nname}
# delete fstab.JAILNAME
rm -f /etc/fstab.$oldjail_nname
# if there is a soft link pointing to the jail root, remove it
oldjail_softlink=$ezjail_jaildir/`basename $oldjail_rootdir`
[ -L $oldjail_softlink ] && rm $oldjail_softlink
# if wiping the jail was requested, remove it
[ $oldjail_wipe = "YES" ] && rm -rf $oldjail_rootdir
;;
list)
######################## ezjail-admin LIST ########################
jail_list=`ls $ezjail_jailcfgs`
for jail in $jail_list; do
. ${ezjail_jailcfgs}/$jail
eval jail_ip=\"\$jail_${jail}_ip\"
eval jail_hostname=\"\$jail_${jail}_hostname\"
eval jail_rootdir=\"\$jail_${jail}_rootdir\"
printf "%-15s %-28s %s\\n" $jail_ip $jail_hostname $jail_rootdir
done
;;
setup|update)
######################## ezjail-admin UPDATE ########################
shift
args=`getopt is: $*`
[ $? = 0 ] || exerr 'Usage: ezjail update [-s sourcetree] [-i]'
updatejail_installaction="world"
set -- $args
for arg do
case $arg in
-i) updatejail_installaction="installworld"; shift;;
-s) ezjail_sourcetree="$2"; shift 2;;
--) shift; break;;
esac
done;
# Bump the user for some of the most common errors
[ -d ${ezjail_sourcetree} ] || exerr "Cannot find your copy of the FreeBSD source tree in $ezjail_sourcetree."
[ -f ${ezjail_sourcetree}/Makefile ] || exerr "Your source tree in $ezjail_sourcetree seems to be incomplete (Makefile missing)."
cd ${ezjail_sourcetree}
# Normally fulljail should be renamed by past ezjail-admin commands
# However those may have failed
rm -rf ${ezjail_jailfull}; mkdir -p ${ezjail_jailfull}
# make our world
make ${updatejail_installaction} DESTDIR=${ezjail_jailfull}
[ $? = 0 ] || exerr "make ${updatejail_installaction} failed"
# setup world
make distribution DESTDIR=${ezjail_jailfull}
[ $? = 0 ] || exerr "make distribution failed"
cd ${ezjail_jailfull}
# Fill basejail from installed world
mkdir -p ${ezjail_jailbase}/usr ${ezjail_jailbase}/config/pkg
for a in bin sbin usr/bin usr/include usr/lib usr/libexec usr/sbin usr/src usr/share; do
find ${a} | cpio -d -p -v ${ezjail_jailbase};
chflags -R noschg ${a}; rm -r ${a}; ln -s /basejail/${a} ${a}
done
mkdir basejail
ln -s /basejail/usr/ports usr/ports
if [ -d ${ezjail_jailtemplate} ]; then
rm -rf ${ezjail_jailtemplate}_old
mv ${ezjail_jailtemplate} ${ezjail_jailtemplate}_old
fi
mv ${ezjail_jailfull} ${ezjail_jailtemplate}
;;
*)
echo "Usage: `basename $0` [create|delete|list|update] {params}"; exit;
;;
esac
|
