#!/bin/bash
# ===================================================================
#
# Copyright (c) 2005, Intel Corp.
# 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.
# ===================================================================
# | SRC | TAG | CMD SIZE | ORD | type| mode
TPM_CMD_OPEN=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x10\\x01\\x00\\x00\\x01\\x01\\x01
TPM_CMD_RESM=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x10\\x01\\x00\\x00\\x01\\x01\\x02
TPM_CMD_CLOS=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x0e\\x01\\x00\\x00\\x02
TPM_CMD_DELE=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x0e\\x01\\x00\\x00\\x03
TPM_SUCCESS=00000000
TX_VTPM_MANAGER=/var/vtpm/fifos/from_console.fifo
RX_VTPM_MANAGER=/var/vtpm/fifos/to_console.fifo
VTPM_MIG=/usr/bin/vtpm_migrator
# -------------------- Helpers for binary streams -----------
function str_to_hex32() {
printf "%0.8x" $1
}
function hex32_to_bin() {
local inst=$(str_to_hex32 $1);
local n1=`echo $inst | sed 's/\(..\)....../\\\\x\1/'`
local n2=`echo $inst | sed 's/..\(..\)..../\\\\x\1/'`
local n3=`echo $inst | sed 's/....\(..\)../\\\\x\1/'`
local n4=`echo $inst | sed 's/......\(..\)/\\\\x\1/'`
echo "$n1$n2$n3$n4"
}
function vtpm_manager_cmd() {
local cmd=$1;
local inst=$2;
local inst_bin=$(hex32_to_bin $inst);
claim_lock vtpm_mgr
#send cmd to vtpm_manager
printf "$cmd$inst_bin" > $TX_VTPM_MANAGER
#recv response
set +e
local resp_hex=`dd skip=10 bs=1 count=4 if=$RX_VTPM_MANAGER 2> /dev/null | xxd -ps`
set -e
release_lock vtpm_mgr
#return whether the command was successful
if [ $resp_hex != $TPM_SUCCESS ]; then
vtpm_fatal_error=1
false
else
true
fi
}
# ------------------ Command handlers -----------------
# Create new vtpm instance & set it up for use
function vtpm_create () {
# Creation is handled implicitly b