#!/bin/bash
set -e
. ${ADT_XENLVM_SHARE:=/usr/share/autopkgtest/xenlvm}/readconfig

dest=$adt_play/base

echo '---fixups:'

cp ${ADT_XENLVM_SHARE}/fixups-inside $dest/root/

if test -d "${adt_modules}"; then
	mkdir -p $dest/lib/modules
	cp -a "${adt_modules}" $dest/lib/modules/.
fi

echo xennet >>$dest/etc/modules

if ! test -f "${adt_ssh_pubkey}"; then
	if [ "x${adt_ssh_pubkey}" != "x${adt_ssh_privkey}.pub" ]; then
		fail "cannot generate keypair automatically because adt_ssh_privkey \`$adt_ssh_privkey' and adt_ssh_pubkey \`$adt_ssh_pubkey' do not match up in the way required by ssh-keygen (<pubkey> must be <privkey>.pub>"
	fi
	if test -f "${adt_ssh_privkey}"; then
		fail "will not overwrite existing private key \`$adt_ssh_privkey' - but where is public key \`$adt_ssh_pubkey' ?"
	fi

	mkdir -p /root/.ssh
	ssh-keygen -N '' ${adt_ssh_keygen_args} -f "${adt_ssh_privkey}"
fi

mkdir -m 02700 -p $dest/root/.ssh
cp -- "${adt_ssh_pubkey}" $dest/root/.ssh/authorized_keys
if [ "x$adt_sshauthkeys_hook" != x ]; then
	cat -- "$adt_sshauthkeys_hook" >>$dest/root/.ssh/authorized_keys
fi

cat <<END >$dest/etc/init.d/xenethtoolk
#!/bin/sh
# work around checksum offload bug in Xen network bridge driver
case "$1" in
start)
	ethtool -K eth0 tx off
	ethtool -K eth0 rx off
	;;
esac
END
chmod +x $dest/etc/init.d/xenethtoolk
ln -s ../init.d/xenethtoolk $dest/etc/rc2.d/S21xenethtoolk

chroot $dest root/fixups-inside \
	"$adt_host_hostname" "$adt_guest_hostname" \
	"$adt_host_ipaddr" "$adt_guest_ipaddr" \
	"$adt_fs_type" "$adt_normaluser" \
	"$provideswap"

kh=/etc/ssh/ssh_known_hosts
test ! -f $kh || cp $kh $kh.new
exec 3>$kh.new
pfx="$adt_guest_hostname,$adt_guest_ipaddr"
test ! -f $kh || perl -pe '$_="" if m/^(\S+)\s/ && $1 eq "'$pfx'";' $kh >&3
for f in $dest/etc/ssh/ssh_host_*_key.pub; do
    perl -pe '$_= "'$pfx' ".$_;' $f >&3
done
exec 3>&-
mv $kh.new $kh

if test -f $dest/etc/udev/rules.d/*-persistent-net-generator.rules; then
	rules_file="`grep '^RULES_FILE=' $dest/lib/udev/write_net_rules`"
	rules_file=${rules_file#RULES_FILE=}
	rules_file=${rules_file#[\'\"]}
	rules_file=${rules_file%[\'\"]}
	echo 'SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="'$adt_guest_macaddr'", NAME="eth0"' >"$dest/$rules_file"
fi

echo '
=== adt xen fixups done.
'