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#!/bin/bash
# Author: An-Cheng Huang <ancheng@vyatta.com>
# Date: 2007
# Description: command wrapper
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2006, 2007, 2008 Vyatta, Inc.
# All Rights Reserved.
# **** End License ****
if grep -q union=aufs /proc/cmdline || grep -q aufs /proc/filesystems ; then
export UNIONFS=aufs
else
export UNIONFS=unionfs
fi
UMASK_SAVE=`umask`
umask 0002
export VYATTA_EDIT_LEVEL=/;
export VYATTA_TEMPLATE_LEVEL=/;
export VYATTA_ACTIVE_CONFIGURATION_DIR=/opt/vyatta/config/active;
export VYATTA_CHANGES_ONLY_DIR=/opt/vyatta/config/tmp/changes_only_$PPID;
export VYATTA_TEMP_CONFIG_DIR=/opt/vyatta/config/tmp/new_config_$PPID;
export VYATTA_CONFIG_TMP=/opt/vyatta/config/tmp/tmp_$PPID;
RET_STATUS=0
case "$1" in
begin)
# set up the environment/directories
mkdir -p $VYATTA_ACTIVE_CONFIGURATION_DIR
mkdir -p $VYATTA_CHANGES_ONLY_DIR
if [ ! -d $VYATTA_TEMP_CONFIG_DIR ]; then
mkdir -p $VYATTA_TEMP_CONFIG_DIR
sudo mount -t $UNIONFS -o dirs=${VYATTA_CHANGES_ONLY_DIR}=rw:${VYATTA_ACTIVE_CONFIGURATION_DIR}=ro $UNIONFS ${VYATTA_TEMP_CONFIG_DIR}
fi
mkdir -p $VYATTA_CONFIG_TMP
;;
end)
# tear down the environment/directories
sudo umount ${VYATTA_TEMP_CONFIG_DIR}
rm -rf ${VYATTA_CHANGES_ONLY_DIR}
rm -rf ${VYATTA_CONFIG_TMP}
rm -rf ${VYATTA_TEMP_CONFIG_DIR}
;;
cleanup)
sudo umount ${VYATTA_TEMP_CONFIG_DIR}
rm -rf $VYATTA_CHANGES_ONLY_DIR/* $VYATTA_CHANGES_ONLY_DIR/.modified
sudo mount -t $UNIONFS -o dirs=${VYATTA_CHANGES_ONLY_DIR}=rw:${VYATTA_ACTIVE_CONFIGURATION_DIR}=ro $UNIONFS ${VYATTA_TEMP_CONFIG_DIR}
;;
set)
/opt/vyatta/sbin/my_set "${@:2}"
RET_STATUS=$?
;;
delete)
/opt/vyatta/sbin/my_delete "${@:2}"
RET_STATUS=$?
;;
commit)
/opt/vyatta/sbin/my_commit
RET_STATUS=$?
;;
*)
echo "Invalid command \"$1\" for vyatta-cfg-cmd-wrapper"
RET_STATUS=1
;;
esac
umask ${UMASK_SAVE}
exit $RET_STATUS
|
