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/*
* Copyright 2001 - 2007 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 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.
*/
/*
* nvlock.c
*
* Command: tpmnv_lock.
*
* This command can lock the TPM NV Storage.
*
*/
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <getopt.h>
#include <trousers/tss.h>
#include <trousers/trousers.h>
#define PRINT printf
#include "../../include/uuid.h"
#include "../../include/lcp.h"
#include "lcptools.h"
#include "lcputils.h"
static int force = 0;
static int help_input = 0;
static const char *short_option = "hf";
static const char *usage_string = "tpmnv_lock [-f] [-h]";
static const char * option_strings[] ={
"-f force to lock.\n",
"-h help. Will print out this help message.\n"
,0
};
/* function: parse_cmdline
* description: parse the input of commandline
*/
static int
parse_cmdline(int argc, const char * argv[])
{
int c;
while (((c = getopt(argc, (char ** const)argv, short_option)) != -1))
switch (c){
case 'f':
force = 1;
break;
case 'h':
help_input = 1;
break;
default:
return LCP_E_NO_SUCH_PARAMETER;
}
if ( optind < argc )
return LCP_E_INVALID_PARAMETER;
return LCP_SUCCESS;
}
int
main (int argc, char *argv[])
{
char c;
in_nv_definespace_t in_defspace;
lcp_result_t ret_value = LCP_E_COMD_INTERNAL_ERR;
ret_value = parse_cmdline(argc, (const char **)argv);
if ( ret_value )
goto _error_end;
/*
* If user input -h(help), just print guide to
* users and ignore other parameters.
*/
if (help_input) {
print_help(usage_string, option_strings);
return LCP_SUCCESS;
}
/*
* Check whether force to lock.
*/
if ( force == 0 ) {
/*
* If haven't input force to lock, reminder to confirm
* whether lock or not.
*/
do {
log_info("Really want to lock TPM NV? (Y/N) ");
c = getchar() | ' ';
} while ( (c != 'n') && (c != 'y') );
if ( c == 'n') {
ret_value = LCP_SUCCESS;
return ret_value;
}
}
/*
* Set index as TPM_NV_INDEX_LOCK, datasize as 0 to lock TPM NV
*/
in_defspace.index = TPM_NV_INDEX_LOCK;
in_defspace.permission = 0;
in_defspace.size = 0;
ret_value = lcp_define_index(&in_defspace,
NULL, 0, NULL, 0, NULL, NULL);
if ( ret_value == LCP_SUCCESS ) {
/*
* Execute successfully.
*/
log_info("Successfully locked TPM NV!\n");
return ret_value;
}
_error_end:
/*
* Error when execute.
*/
log_error("\nCommand NvLock failed:\n");
print_error(ret_value);
return ret_value;
}
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