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Diffstat (limited to 'src/tpm2/DebugHelpers.c')
| -rw-r--r-- | src/tpm2/DebugHelpers.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/tpm2/DebugHelpers.c b/src/tpm2/DebugHelpers.c new file mode 100644 index 0000000..eb58a29 --- /dev/null +++ b/src/tpm2/DebugHelpers.c @@ -0,0 +1,160 @@ +/********************************************************************************/ +/* */ +/* Debug Helper */ +/* Written by Ken Goldman */ +/* IBM Thomas J. Watson Research Center */ +/* $Id: DebugHelpers.c 1658 2021-01-22 23:14:01Z kgoldman $ */ +/* */ +/* Licenses and Notices */ +/* */ +/* 1. Copyright Licenses: */ +/* */ +/* - Trusted Computing Group (TCG) grants to the user of the source code in */ +/* this specification (the "Source Code") a worldwide, irrevocable, */ +/* nonexclusive, royalty free, copyright license to reproduce, create */ +/* derivative works, distribute, display and perform the Source Code and */ +/* derivative works thereof, and to grant others the rights granted herein. */ +/* */ +/* - The TCG grants to the user of the other parts of the specification */ +/* (other than the Source Code) the rights to reproduce, distribute, */ +/* display, and perform the specification solely for the purpose of */ +/* developing products based on such documents. */ +/* */ +/* 2. Source Code Distribution Conditions: */ +/* */ +/* - Redistributions of Source Code must retain the above copyright licenses, */ +/* this list of conditions and the following disclaimers. */ +/* */ +/* - Redistributions in binary form must reproduce the above copyright */ +/* licenses, this list of conditions and the following disclaimers in the */ +/* documentation and/or other materials provided with the distribution. */ +/* */ +/* 3. Disclaimers: */ +/* */ +/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */ +/* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */ +/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */ +/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */ +/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */ +/* information on specification licensing rights available through TCG */ +/* membership agreements. */ +/* */ +/* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */ +/* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */ +/* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */ +/* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */ +/* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */ +/* */ +/* - Without limitation, TCG and its members and licensors disclaim all */ +/* liability, including liability for infringement of any proprietary */ +/* rights, relating to use of information in this specification and to the */ +/* implementation of this specification, and TCG disclaims all liability for */ +/* cost of procurement of substitute goods or services, lost profits, loss */ +/* of use, loss of data or any incidental, consequential, direct, indirect, */ +/* or special damages, whether under contract, tort, warranty or otherwise, */ +/* arising in any way out of use or reliance upon this specification or any */ +/* information herein. */ +/* */ +/* (c) Copyright IBM Corp. and others, 2019 - 2021 */ +/* */ +/********************************************************************************/ + +/* C.13 DebugHelpers.c */ +/* C.13.1. Description */ +/* This file contains the NV read and write access methods. This implementation uses RAM/file and + does not manage the RAM/file as NV blocks. The implementation may become more sophisticated over + time. */ +/* C.13.2. Includes and Local */ +#include <stdio.h> +#include <time.h> +#include "Platform.h" +#include "DebugHelpers_fp.h" + +#if CERTIFYX509_DEBUG +const char *debugFileName = "DebugFile.txt"; + +/* C.13.2.1. fileOpen() */ + +/* This exists to allow use of the safe version of fopen() with a MS runtime. */ + +static FILE * +fileOpen( + const char *fn, + const char *mode + ) +{ + FILE *f; +# if defined _MSC_VER + if(fopen_s(&f, fn, mode) != 0) + f = NULL; +# else + f = fopen(fn, mode); +# endif + return f; +} +/* C.13.2.2. DebugFileInit() */ +/* This function initializes the file containing the debug data with the time of the file + creation. */ +/* This function opens the file used to hold the debug data. */ +/* Return Value Meaning */ +/* 0 success */ +/* != 0 error */ +int +DebugFileInit( + void + ) +{ + FILE *f = NULL; + time_t t = time(NULL); + // + // Get current date and time. +# if defined _MSC_VER + char timeString[100]; + ctime_s(timeString, (size_t)sizeof(timeString), &t); +# else + char *timeString; + timeString = ctime(&t); +# endif + // Try to open the debug file + f = fileOpen(debugFileName, "w"); + if(f) + { + /* Initialize the contents with the time. */ + fprintf(f, "%s\n", timeString); + fclose(f); + return 0; + } + return -1; +} + +/* C.13.2.3. DebugDumpBuffer() */ + +void +DebugDumpBuffer( + int size, + unsigned char *buf, + const char *identifier + ) +{ + int i; + // + FILE *f = fileOpen(debugFileName, "a"); + if(!f) + return; + if(identifier) + fprintf(f, "%s\n", identifier); + if(buf) + { + for(i = 0; i < size; i++) + { + if(((i % 16) == 0) && (i)) + fprintf(f, "\n"); + fprintf(f, " %02X", buf[i]); + } + if((size % 16) != 0) + fprintf(f, "\n"); + } + fclose(f); +} + +#endif // CERTIFYX509_DEBUG |