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Strongswan

#!/bin/bash

DIR=$(dirname `readlink -f $0`)
. $DIR/../testing.conf
. $DIR/function.sh

SWANDIR=${1:+$(readlink -f $1)}
: ${SWANDIR:=$(readlink -f $DIR/../..)}

[ `id -u` -eq 0 ] || die "You must be root to run $0"
[ -f "$BASEIMG" ] || die "Base image $BASEIMG not found"
[ -f "$ROOTIMG" ] || die "Root image $ROOTIMG not found"
running_any $STRONGSWANHOSTS && die "Please stop test environment before running $0"

[ -f $SWANDIR/src/libstrongswan/asn1/oid.txt ] || die "strongSwan not found in $SWANDIR"

SRCUID=${SUDO_UID:-$(id -u)}
SRCGID=${SUDO_GID:-$(id -g)}

check_commands partprobe qemu-img qemu-nbd bindfs

load_qemu_nbd

mkdir -p $LOOPDIR
mkdir -p $IMGDIR

case "$2" in
"")
	log_action "Connecting root image to NBD device $NBDEV"
	execute "qemu-nbd -c $NBDEV $ROOTIMG"
	;;
*)
	echo $STRONGSWANHOSTS | grep -q "\b$2\b" || die "Guest $2 not found"
	GUESTIMG="$IMGDIR/$2.$IMGEXT"
	[ -f "$GUESTIMG" ] || die "Guest image $GUESTIMG not found"
	log_action "Connecting guest image to NBD device $NBDEV"
	execute "qemu-nbd -c $NBDEV $GUESTIMG"
	;;
esac

do_on_exit qemu-nbd -d $NBDEV
partprobe $NBDEV

log_action "Mounting $NBDPARTITION to $LOOPDIR"
execute "mount $NBDPARTITION $LOOPDIR"
do_on_exit umount $LOOPDIR

log_action "Mounting proc filesystem to $LOOPDIR/proc"
execute "mount -t proc none $LOOPDIR/proc"
do_on_exit umount $LOOPDIR/proc

mkdir -p $LOOPDIR/root/shared
log_action "Mounting $SHAREDDIR as /root/shared"
execute "mount -o bind $SHAREDDIR $LOOPDIR/root/shared"
do_on_exit umount $LOOPDIR/root/shared

mkdir -p $LOOPDIR/root/strongswan
log_action "Mounting $SWANDIR as /root/strongswan"
execute "bindfs -u $SRCUID -g $SRCGID --create-for-user=$SRCUID --create-for-group=$SRCGID $SWANDIR $LOOPDIR/root/strongswan"
do_on_exit umount $LOOPDIR/root/strongswan

log_action "Copy /etc/resolv.conf"
execute "cp /etc/resolv.conf $LOOPDIR/etc/resolv.conf"
do_on_exit rm $LOOPDIR/etc/resolv.conf

log_action "Remove SWID tags of previous versions"
execute_chroot "find /usr/local/share -path '*strongswan*' -name *.swidtag -delete"

echo "Building and installing strongSwan"

log_action "Determine strongSwan version"
desc=`git -C $SWANDIR describe --dirty`
if [ $? -eq 0 ]; then
	SWANVERSION="$desc (`git -C $SWANDIR rev-parse --abbrev-ref HEAD`)"
else
	SWANVERSION="`cat $SWANDIR/configure.ac | sed -n '/^AC_INIT/{ s/.*,\[\(.*\)\])$/\1/p }'`"
fi
echo "$SWANVERSION" > $SHAREDDIR/.strongswan-version
log_status 0

log_action "Preparing source tree"
execute_chroot 'autoreconf -i /root/strongswan'

RECPDIR=$DIR/recipes
RECIPE=`ls $RECPDIR/*strongswan.mk | xargs -n1 basename`
mkdir -p $SHAREDDIR/build-strongswan
cp $RECPDIR/$RECIPE $SHAREDDIR/build-strongswan
log_action "Installing from recipe $RECIPE"
execute_chroot "make SRCDIR=/root/strongswan BUILDDIR=/root/shared/build-strongswan -f /root/shared/build-strongswan/$RECIPE"

# rebuild the guest images after we modified the root image
if [ -z "$2" ]; then
	# cleanup before mounting guest images
	on_exit
	# building the guest images without certificates fails on winnetou
	if [ ! -f "$DIR/../hosts/winnetou/etc/ca/strongswanCert.pem" ]; then
		# this also re-builds the guest images
		$DIR/build-certs
	else
		$DIR/build-guestimages
	fi
fi