tpm_util.h (1891B)
1 /* 2 * TPM utility functions 3 * 4 * Copyright (c) 2010 - 2015 IBM Corporation 5 * Authors: 6 * Stefan Berger <stefanb@us.ibm.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, see <http://www.gnu.org/licenses/> 20 */ 21 22 #ifndef SYSEMU_TPM_UTIL_H 23 #define SYSEMU_TPM_UTIL_H 24 25 #include "sysemu/tpm.h" 26 #include "qemu/bswap.h" 27 28 void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len); 29 30 bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len); 31 32 int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version); 33 34 static inline uint16_t tpm_cmd_get_tag(const void *b) 35 { 36 return lduw_be_p(b); 37 } 38 39 static inline void tpm_cmd_set_tag(void *b, uint16_t tag) 40 { 41 stw_be_p(b, tag); 42 } 43 44 static inline uint32_t tpm_cmd_get_size(const void *b) 45 { 46 return ldl_be_p(b + 2); 47 } 48 49 static inline void tpm_cmd_set_size(void *b, uint32_t size) 50 { 51 stl_be_p(b + 2, size); 52 } 53 54 static inline uint32_t tpm_cmd_get_ordinal(const void *b) 55 { 56 return ldl_be_p(b + 6); 57 } 58 59 static inline uint32_t tpm_cmd_get_errcode(const void *b) 60 { 61 return ldl_be_p(b + 6); 62 } 63 64 static inline void tpm_cmd_set_error(void *b, uint32_t error) 65 { 66 stl_be_p(b + 6, error); 67 } 68 69 void tpm_util_show_buffer(const unsigned char *buffer, 70 size_t buffer_size, const char *string); 71 72 #endif /* SYSEMU_TPM_UTIL_H */