83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
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* TPM utility functions
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*
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* Copyright (c) 2010 - 2015 IBM Corporation
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* Authors:
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* Stefan Berger <stefanb@us.ibm.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef TPM_TPM_UTIL_H
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#define TPM_TPM_UTIL_H
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#include "sysemu/tpm.h"
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#include "qemu/bswap.h"
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void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len);
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bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len);
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int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version);
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static inline uint16_t tpm_cmd_get_tag(const void *b)
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{
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return lduw_be_p(b);
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}
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static inline void tpm_cmd_set_tag(void *b, uint16_t tag)
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{
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stw_be_p(b, tag);
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}
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static inline uint32_t tpm_cmd_get_size(const void *b)
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{
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return ldl_be_p(b + 2);
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}
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static inline void tpm_cmd_set_size(void *b, uint32_t size)
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{
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stl_be_p(b + 2, size);
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}
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static inline uint32_t tpm_cmd_get_ordinal(const void *b)
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{
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return ldl_be_p(b + 6);
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}
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static inline uint32_t tpm_cmd_get_errcode(const void *b)
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{
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return ldl_be_p(b + 6);
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}
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static inline void tpm_cmd_set_error(void *b, uint32_t error)
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{
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stl_be_p(b + 6, error);
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}
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int tpm_util_get_buffer_size(int tpm_fd, TPMVersion tpm_version,
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size_t *buffersize);
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#define DEFINE_PROP_TPMBE(_n, _s, _f) \
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DEFINE_PROP(_n, _s, _f, qdev_prop_tpm, TPMBackend *)
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typedef struct TPMSizedBuffer {
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uint32_t size;
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uint8_t *buffer;
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} TPMSizedBuffer;
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void tpm_sized_buffer_reset(TPMSizedBuffer *tsb);
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#endif /* TPM_TPM_UTIL_H */
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