rpc_pcr_extend.c

来自「TCG软件栈 linux系统上使用 为可信应用软件提供和 TPM通信的 接」· C语言 代码 · 共 114 行

/*
 * Licensed Materials - Property of IBM
 *
 * trousers - An open source TCG Software Stack
 *
 * (C) Copyright International Business Machines Corp. 2004-2006
 *
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>

#include "trousers/tss.h"
#include "trousers/trousers.h"
#include "trousers_types.h"
#include "spi_utils.h"
#include "capabilities.h"
#include "tsplog.h"
#include "hosttable.h"
#include "tcsd_wrap.h"
#include "obj.h"
#include "rpc_tcstp_tsp.h"


TSS_RESULT
RPC_Extend_TP(struct host_table_entry *hte,
			   TCPA_PCRINDEX pcrNum,	/* in */
			   TCPA_DIGEST inDigest,	/* in */
			   TCPA_PCRVALUE * outDigest	/* out */
    ) {
	TSS_RESULT result;

	initData(&hte->comm, 3);
	hte->comm.hdr.u.ordinal = TCSD_ORD_EXTEND;
	LogDebugFn("TCS Context: 0x%x", hte->tcsContext);

	if (setData(TCSD_PACKET_TYPE_UINT32, 0, &hte->tcsContext, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);
	if (setData(TCSD_PACKET_TYPE_UINT32, 1, &pcrNum, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);
	if (setData(TCSD_PACKET_TYPE_DIGEST, 2, &inDigest, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);

	result = sendTCSDPacket(hte);

	if (result == TSS_SUCCESS)
		result = hte->comm.hdr.u.result;

	if (result == TSS_SUCCESS) {
		if (getData(TCSD_PACKET_TYPE_DIGEST, 0, outDigest, 0, &hte->comm))
			result = TSPERR(TSS_E_INTERNAL_ERROR);
	}

	return result;
}

TSS_RESULT
RPC_PcrRead_TP(struct host_table_entry *hte,
			    TCPA_PCRINDEX pcrNum,	/* in */
			    TCPA_PCRVALUE * outDigest	/* out */
    ) {
	TSS_RESULT result;

	initData(&hte->comm, 2);
	hte->comm.hdr.u.ordinal = TCSD_ORD_PCRREAD;
	LogDebugFn("TCS Context: 0x%x", hte->tcsContext);

	if (setData(TCSD_PACKET_TYPE_UINT32, 0, &hte->tcsContext, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);
	if (setData(TCSD_PACKET_TYPE_UINT32, 1, &pcrNum, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);

	result = sendTCSDPacket(hte);

	if (result == TSS_SUCCESS)
		result = hte->comm.hdr.u.result;

	if (result == TSS_SUCCESS) {
		if (getData(TCSD_PACKET_TYPE_DIGEST, 0, outDigest, 0, &hte->comm))
			result = TSPERR(TSS_E_INTERNAL_ERROR);
	}

	return result;
}

TSS_RESULT
RPC_PcrReset_TP(struct host_table_entry *hte,
		 UINT32 pcrDataSizeIn,		 /* in */
		 BYTE * pcrDataIn)		 /* in */
{
	TSS_RESULT result;

	initData(&hte->comm, 3);
	hte->comm.hdr.u.ordinal = TCSD_ORD_PCRRESET;
	LogDebugFn("TCS Context: 0x%x", hte->tcsContext);

	if (setData(TCSD_PACKET_TYPE_UINT32, 0, &hte->tcsContext, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);
	if (setData(TCSD_PACKET_TYPE_UINT32, 1, &pcrDataSizeIn, 0, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);
	if (setData(TCSD_PACKET_TYPE_PBYTE, 2, pcrDataIn, pcrDataSizeIn, &hte->comm))
		return TSPERR(TSS_E_INTERNAL_ERROR);

	result = sendTCSDPacket(hte);

	if (result == TSS_SUCCESS)
		result = hte->comm.hdr.u.result;

	return result;
}