#!/usr/bin/env bash
#
# Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
#   * Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in
#     the documentation and/or other materials provided with the
#     distribution.
#   * Neither the name of Intel Corporation nor the names of its
#     contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#

modinfo isgx &> /dev/null
if [[ $? != "0" ]]; then
    lsmod | grep isgx &> /dev/null
    if [[ $? = "0" ]]; then
        echo "Warning: You did not follow the document to install the driver package"
        echo
    else
        echo "Please install the driver package before the PSW package"
        exit 4
    fi
fi

set -e

PKG_NAME="Intel SGX PSW Package"

if test $(id -u) -ne 0; then
    echo "Root privilege is required to install $PKG_NAME."
    exit 4
fi


PKG_ARCH=@arch@
ARCH=$(uname -m)

if [ $ARCH == "i386" ] || [ $ARCH == "i586" ] || [ $ARCH == "i686" ]; then
    ARCH=x86
fi

if [[ $ARCH != $PKG_ARCH ]]; then
    echo "$PKG_ARCH $PKG_NAME can not be installed on $ARCH platform."
    exit 4
fi

INSTALL_PATH=/opt/intel/sgxpsw
if [ -d "$INSTALL_PATH" ]; then
    echo "$PKG_NAME already exists in $INSTALL_PATH, please uninstall it first!"
    exit 4
fi

PATH=/usr/bin:/bin
umask 022

PSWPKG=`mktemp -t sgx-psw-pkg.XXXXXX`
PSW_TEMP_FOLDER=`mktemp -d sgx-psw-XXXXXX -p /tmp`
trap "rm -fr $PSWPKG $PSW_TEMP_FOLDER= 2>/dev/null; exit 3" HUP INT QUIT TERM

# The number of lines in this script (plus 1).  Using this number to
# calculate the start address of the payload.
NR_SCRIPT_LINES=@linenum@

# Run /usr/bin/md5sum on the binary payload to get the MD5 check sum.
CHKSUM=@md5sum@

# Get the install payload from this shell script.
echo -n "Unpacking $PKG_NAME ..."
tail -n +$NR_SCRIPT_LINES "$0" > $PSWPKG
echo " done."

echo -n "Verifying the integrity of the install package ..."
if test $(md5sum $PSWPKG | awk '{print $1}') != $CHKSUM; then
    echo " The install package appears to be corrupted."
    exit 1
fi
echo " done."

echo -n "Installing $PKG_NAME ..."
tar zxf $PSWPKG -C $PSW_TEMP_FOLDER >/dev/null 2>&1
retcode=$?			# Save the return code
# Clean-up the temporary tarball.
rm -f $PSWPKG 2>/dev/null

if test $retcode -ne 0; then
    echo " failed."
    exit 2
fi
echo " done."

pushd $PSW_TEMP_FOLDER

source scripts/installConfig
make install

popd

${SGX_PACKAGES_PATH}/${PSW_PKG_NAME}/scripts/install.sh

rm -fr ${PSW_TEMP_FOLDER}


exit 0