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/*
* TPM utility functions
*
* Copyright (c) 2010 - 2015 IBM Corporation
* Authors:
* Stefan Berger <stefanb@us.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
#ifndef TPM_TPM_UTIL_H
#define TPM_TPM_UTIL_H
#include "sysemu/tpm.h"
#include "qemu/bswap.h"
void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len);
bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len);
int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version);
static inline uint16_t tpm_cmd_get_tag(const void *b)
{
return lduw_be_p(b);
}
static inline void tpm_cmd_set_tag(void *b, uint16_t tag)
{
stw_be_p(b, tag);
}
static inline uint32_t tpm_cmd_get_size(const void *b)
{
return ldl_be_p(b + 2);
}
static inline void tpm_cmd_set_size(void *b, uint32_t size)
{
stl_be_p(b + 2, size);
}
static inline uint32_t tpm_cmd_get_ordinal(const void *b)
{
return ldl_be_p(b + 6);
}
static inline uint32_t tpm_cmd_get_errcode(const void *b)
{
return ldl_be_p(b + 6);
}
static inline void tpm_cmd_set_error(void *b, uint32_t error)
{
stl_be_p(b + 6, error);
}
int tpm_util_get_buffer_size(int tpm_fd, TPMVersion tpm_version,
size_t *buffersize);
#define DEFINE_PROP_TPMBE(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_tpm, TPMBackend *)
typedef struct TPMSizedBuffer {
uint32_t size;
uint8_t *buffer;
} TPMSizedBuffer;
void tpm_sized_buffer_reset(TPMSizedBuffer *tsb);
void tpm_util_show_buffer(const unsigned char *buffer,
size_t buffer_size, const char *string);
#endif /* TPM_TPM_UTIL_H */
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