Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Portable interface to the CPU cycle counter |
| 3 | * |
Manuel Pégourié-Gonnard | a658a40 | 2015-01-23 09:45:19 +0000 | [diff] [blame] | 4 | * Copyright (C) 2006-2014, ARM Limited, All Rights Reserved |
Paul Bakker | b96f154 | 2010-07-18 20:36:00 +0000 | [diff] [blame] | 5 | * |
Manuel Pégourié-Gonnard | fe44643 | 2015-03-06 13:17:10 +0000 | [diff] [blame] | 6 | * This file is part of mbed TLS (https://tls.mbed.org) |
Paul Bakker | b96f154 | 2010-07-18 20:36:00 +0000 | [diff] [blame] | 7 | * |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program 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 |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | */ |
| 22 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 23 | #if !defined(MBEDTLS_CONFIG_FILE) |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 24 | #include "mbedtls/config.h" |
Manuel Pégourié-Gonnard | cef4ad2 | 2014-04-29 12:39:06 +0200 | [diff] [blame] | 25 | #else |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 26 | #include MBEDTLS_CONFIG_FILE |
Manuel Pégourié-Gonnard | cef4ad2 | 2014-04-29 12:39:06 +0200 | [diff] [blame] | 27 | #endif |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 28 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 29 | #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C) |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 30 | #include "mbedtls/platform.h" |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 31 | #else |
| 32 | #include <stdio.h> |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 33 | #define mbedtls_printf printf |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 34 | #endif |
| 35 | |
Manuel Pégourié-Gonnard | 8903fe0 | 2015-05-12 19:30:45 +0200 | [diff] [blame^] | 36 | #if defined(MBEDTLS_TIMING_C) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 37 | |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 38 | #include "mbedtls/timing.h" |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 39 | |
Manuel Pégourié-Gonnard | 8903fe0 | 2015-05-12 19:30:45 +0200 | [diff] [blame^] | 40 | #if !defined(MBEDTLS_TIMING_ALT) |
| 41 | |
Paul Bakker | fa6a620 | 2013-10-28 18:48:30 +0100 | [diff] [blame] | 42 | #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 43 | |
| 44 | #include <windows.h> |
| 45 | #include <winbase.h> |
| 46 | |
| 47 | struct _hr_time |
| 48 | { |
| 49 | LARGE_INTEGER start; |
| 50 | }; |
| 51 | |
| 52 | #else |
| 53 | |
| 54 | #include <unistd.h> |
| 55 | #include <sys/types.h> |
| 56 | #include <sys/time.h> |
| 57 | #include <signal.h> |
| 58 | #include <time.h> |
| 59 | |
| 60 | struct _hr_time |
| 61 | { |
| 62 | struct timeval start; |
| 63 | }; |
| 64 | |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 65 | #endif /* _WIN32 && !EFIX64 && !EFI32 */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 66 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 67 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | 66d5d07 | 2014-06-17 16:39:18 +0200 | [diff] [blame] | 68 | ( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 69 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 70 | #define HAVE_HARDCLOCK |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 71 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 72 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 73 | { |
| 74 | unsigned long tsc; |
| 75 | __asm rdtsc |
| 76 | __asm mov [tsc], eax |
| 77 | return( tsc ); |
| 78 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 79 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 80 | ( _MSC_VER && _M_IX86 ) || __WATCOMC__ */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 81 | |
Manuel Pégourié-Gonnard | 3843353 | 2015-02-11 11:35:58 +0000 | [diff] [blame] | 82 | /* some versions of mingw-64 have 32-bit longs even on x84_64 */ |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 83 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Manuel Pégourié-Gonnard | 3843353 | 2015-02-11 11:35:58 +0000 | [diff] [blame] | 84 | defined(__GNUC__) && ( defined(__i386__) || ( \ |
| 85 | ( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) ) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 86 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 87 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 88 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 89 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 90 | { |
Paul Bakker | ca41010 | 2011-10-19 14:27:36 +0000 | [diff] [blame] | 91 | unsigned long lo, hi; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 92 | asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) ); |
Paul Bakker | ca41010 | 2011-10-19 14:27:36 +0000 | [diff] [blame] | 93 | return( lo ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 94 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 95 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 96 | __GNUC__ && __i386__ */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 97 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 98 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | 66d5d07 | 2014-06-17 16:39:18 +0200 | [diff] [blame] | 99 | defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) ) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 100 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 101 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 102 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 103 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 104 | { |
| 105 | unsigned long lo, hi; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 106 | asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) ); |
Paul Bakker | 66d5d07 | 2014-06-17 16:39:18 +0200 | [diff] [blame] | 107 | return( lo | ( hi << 32 ) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 108 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 109 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 110 | __GNUC__ && ( __amd64__ || __x86_64__ ) */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 111 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 112 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | 66d5d07 | 2014-06-17 16:39:18 +0200 | [diff] [blame] | 113 | defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) ) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 114 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 115 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 116 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 117 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 118 | { |
| 119 | unsigned long tbl, tbu0, tbu1; |
| 120 | |
| 121 | do |
| 122 | { |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 123 | asm volatile( "mftbu %0" : "=r" (tbu0) ); |
| 124 | asm volatile( "mftb %0" : "=r" (tbl ) ); |
| 125 | asm volatile( "mftbu %0" : "=r" (tbu1) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 126 | } |
| 127 | while( tbu0 != tbu1 ); |
| 128 | |
| 129 | return( tbl ); |
| 130 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 131 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 132 | __GNUC__ && ( __powerpc__ || __ppc__ ) */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 133 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 134 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 135 | defined(__GNUC__) && defined(__sparc64__) |
| 136 | |
| 137 | #if defined(__OpenBSD__) |
| 138 | #warning OpenBSD does not allow access to tick register using software version instead |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 139 | #else |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 140 | #define HAVE_HARDCLOCK |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 141 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 142 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 143 | { |
| 144 | unsigned long tick; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 145 | asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) ); |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 146 | return( tick ); |
| 147 | } |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 148 | #endif /* __OpenBSD__ */ |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 149 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 150 | __GNUC__ && __sparc64__ */ |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 151 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 152 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 153 | defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__) |
| 154 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 155 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 156 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 157 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 158 | { |
| 159 | unsigned long tick; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 160 | asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" ); |
| 161 | asm volatile( "mov %%g1, %0" : "=r" (tick) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 162 | return( tick ); |
| 163 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 164 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 165 | __GNUC__ && __sparc__ && !__sparc64__ */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 166 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 167 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 168 | defined(__GNUC__) && defined(__alpha__) |
| 169 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 170 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 171 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 172 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 173 | { |
| 174 | unsigned long cc; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 175 | asm volatile( "rpcc %0" : "=r" (cc) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 176 | return( cc & 0xFFFFFFFF ); |
| 177 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 178 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 179 | __GNUC__ && __alpha__ */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 180 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 181 | #if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 182 | defined(__GNUC__) && defined(__ia64__) |
| 183 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 184 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 185 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 186 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 187 | { |
| 188 | unsigned long itc; |
Manuel Pégourié-Gonnard | d6aebe1 | 2014-03-27 21:15:40 +0100 | [diff] [blame] | 189 | asm volatile( "mov %0 = ar.itc" : "=r" (itc) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 190 | return( itc ); |
| 191 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 192 | #endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && |
Paul Bakker | 9af723c | 2014-05-01 13:03:14 +0200 | [diff] [blame] | 193 | __GNUC__ && __ia64__ */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 194 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 195 | #if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \ |
Paul Bakker | fa6a620 | 2013-10-28 18:48:30 +0100 | [diff] [blame] | 196 | !defined(EFIX64) && !defined(EFI32) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 197 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 198 | #define HAVE_HARDCLOCK |
Paul Bakker | 2eee902 | 2011-04-24 15:28:55 +0000 | [diff] [blame] | 199 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 200 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 2eee902 | 2011-04-24 15:28:55 +0000 | [diff] [blame] | 201 | { |
| 202 | LARGE_INTEGER offset; |
Paul Bakker | fa6a620 | 2013-10-28 18:48:30 +0100 | [diff] [blame] | 203 | |
Manuel Pégourié-Gonnard | 487588d | 2014-03-27 19:02:07 +0100 | [diff] [blame] | 204 | QueryPerformanceCounter( &offset ); |
Paul Bakker | 2eee902 | 2011-04-24 15:28:55 +0000 | [diff] [blame] | 205 | |
Paul Bakker | d8bb826 | 2014-06-17 14:06:49 +0200 | [diff] [blame] | 206 | return( (unsigned long)( offset.QuadPart ) ); |
Paul Bakker | 2eee902 | 2011-04-24 15:28:55 +0000 | [diff] [blame] | 207 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 208 | #endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */ |
Paul Bakker | 2eee902 | 2011-04-24 15:28:55 +0000 | [diff] [blame] | 209 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 210 | #if !defined(HAVE_HARDCLOCK) |
Paul Bakker | bb0139c | 2012-10-31 09:53:08 +0000 | [diff] [blame] | 211 | |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 212 | #define HAVE_HARDCLOCK |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 213 | |
| 214 | static int hardclock_init = 0; |
| 215 | static struct timeval tv_init; |
| 216 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 217 | unsigned long mbedtls_timing_hardclock( void ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 218 | { |
| 219 | struct timeval tv_cur; |
| 220 | |
| 221 | if( hardclock_init == 0 ) |
| 222 | { |
| 223 | gettimeofday( &tv_init, NULL ); |
| 224 | hardclock_init = 1; |
| 225 | } |
| 226 | |
| 227 | gettimeofday( &tv_cur, NULL ); |
| 228 | return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000 |
| 229 | + ( tv_cur.tv_usec - tv_init.tv_usec ) ); |
| 230 | } |
Manuel Pégourié-Gonnard | 8408a94 | 2015-04-09 12:14:31 +0200 | [diff] [blame] | 231 | #endif /* !HAVE_HARDCLOCK */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 232 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 233 | volatile int mbedtls_timing_alarmed = 0; |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 234 | |
Paul Bakker | fa6a620 | 2013-10-28 18:48:30 +0100 | [diff] [blame] | 235 | #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 236 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 237 | unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 238 | { |
| 239 | unsigned long delta; |
| 240 | LARGE_INTEGER offset, hfreq; |
| 241 | struct _hr_time *t = (struct _hr_time *) val; |
| 242 | |
| 243 | QueryPerformanceCounter( &offset ); |
| 244 | QueryPerformanceFrequency( &hfreq ); |
| 245 | |
| 246 | delta = (unsigned long)( ( 1000 * |
| 247 | ( offset.QuadPart - t->start.QuadPart ) ) / |
| 248 | hfreq.QuadPart ); |
| 249 | |
| 250 | if( reset ) |
| 251 | QueryPerformanceCounter( &t->start ); |
| 252 | |
| 253 | return( delta ); |
| 254 | } |
| 255 | |
Manuel Pégourié-Gonnard | dda5213 | 2015-02-11 11:36:31 +0000 | [diff] [blame] | 256 | /* It's OK to use a global because alarm() is supposed to be global anyway */ |
| 257 | static DWORD alarmMs; |
| 258 | |
Manuel Pégourié-Gonnard | 6d71e4e | 2015-02-11 12:54:35 +0000 | [diff] [blame] | 259 | static DWORD WINAPI TimerProc( LPVOID TimerContext ) |
Manuel Pégourié-Gonnard | 487588d | 2014-03-27 19:02:07 +0100 | [diff] [blame] | 260 | { |
Manuel Pégourié-Gonnard | dda5213 | 2015-02-11 11:36:31 +0000 | [diff] [blame] | 261 | ((void) TimerContext); |
| 262 | Sleep( alarmMs ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 263 | mbedtls_timing_alarmed = 1; |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 264 | return( TRUE ); |
| 265 | } |
| 266 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 267 | void mbedtls_set_alarm( int seconds ) |
Manuel Pégourié-Gonnard | 487588d | 2014-03-27 19:02:07 +0100 | [diff] [blame] | 268 | { |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 269 | DWORD ThreadId; |
| 270 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 271 | mbedtls_timing_alarmed = 0; |
Manuel Pégourié-Gonnard | dda5213 | 2015-02-11 11:36:31 +0000 | [diff] [blame] | 272 | alarmMs = seconds * 1000; |
| 273 | CloseHandle( CreateThread( NULL, 0, TimerProc, NULL, 0, &ThreadId ) ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 274 | } |
| 275 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 276 | void mbedtls_timing_m_sleep( int milliseconds ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 277 | { |
| 278 | Sleep( milliseconds ); |
| 279 | } |
| 280 | |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 281 | #else /* _WIN32 && !EFIX64 && !EFI32 */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 282 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 283 | unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 284 | { |
| 285 | unsigned long delta; |
| 286 | struct timeval offset; |
| 287 | struct _hr_time *t = (struct _hr_time *) val; |
| 288 | |
| 289 | gettimeofday( &offset, NULL ); |
| 290 | |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 291 | if( reset ) |
| 292 | { |
| 293 | t->start.tv_sec = offset.tv_sec; |
| 294 | t->start.tv_usec = offset.tv_usec; |
Alfred Klomp | b308dd7 | 2014-07-14 22:32:21 +0200 | [diff] [blame] | 295 | return( 0 ); |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 296 | } |
| 297 | |
Alfred Klomp | b308dd7 | 2014-07-14 22:32:21 +0200 | [diff] [blame] | 298 | delta = ( offset.tv_sec - t->start.tv_sec ) * 1000 |
| 299 | + ( offset.tv_usec - t->start.tv_usec ) / 1000; |
| 300 | |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 301 | return( delta ); |
| 302 | } |
| 303 | |
Paul Bakker | 49d7567 | 2012-09-26 15:22:07 +0000 | [diff] [blame] | 304 | #if defined(INTEGRITY) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 305 | void mbedtls_timing_m_sleep( int milliseconds ) |
Paul Bakker | 49d7567 | 2012-09-26 15:22:07 +0000 | [diff] [blame] | 306 | { |
| 307 | usleep( milliseconds * 1000 ); |
| 308 | } |
| 309 | |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 310 | #else /* INTEGRITY */ |
Paul Bakker | 49d7567 | 2012-09-26 15:22:07 +0000 | [diff] [blame] | 311 | |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 312 | static void sighandler( int signum ) |
Manuel Pégourié-Gonnard | 487588d | 2014-03-27 19:02:07 +0100 | [diff] [blame] | 313 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 314 | mbedtls_timing_alarmed = 1; |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 315 | signal( signum, sighandler ); |
| 316 | } |
| 317 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 318 | void mbedtls_set_alarm( int seconds ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 319 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 320 | mbedtls_timing_alarmed = 0; |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 321 | signal( SIGALRM, sighandler ); |
| 322 | alarm( seconds ); |
| 323 | } |
| 324 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 325 | void mbedtls_timing_m_sleep( int milliseconds ) |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 326 | { |
| 327 | struct timeval tv; |
| 328 | |
| 329 | tv.tv_sec = milliseconds / 1000; |
Manuel Pégourié-Gonnard | dfbf9c7 | 2014-02-20 22:16:43 +0100 | [diff] [blame] | 330 | tv.tv_usec = ( milliseconds % 1000 ) * 1000; |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 331 | |
| 332 | select( 0, NULL, NULL, NULL, &tv ); |
| 333 | } |
Paul Bakker | 49d7567 | 2012-09-26 15:22:07 +0000 | [diff] [blame] | 334 | #endif /* INTEGRITY */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 335 | |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 336 | #endif /* _WIN32 && !EFIX64 && !EFI32 */ |
Paul Bakker | 5121ce5 | 2009-01-03 21:22:43 +0000 | [diff] [blame] | 337 | |
Manuel Pégourié-Gonnard | 8903fe0 | 2015-05-12 19:30:45 +0200 | [diff] [blame^] | 338 | #endif /* !MBEDTLS_TIMING_ALT */ |
| 339 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 340 | #if defined(MBEDTLS_SELF_TEST) |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 341 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 342 | /* To test mbedtls_net_usleep against our functions */ |
| 343 | #if defined(MBEDTLS_NET_C) && defined(MBEDTLS_HAVE_TIME) |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 344 | #include "mbedtls/net.h" |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 345 | #endif |
| 346 | |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 347 | /* |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 348 | * Busy-waits for the given number of milliseconds. |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 349 | * Used for testing mbedtls_timing_hardclock. |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 350 | */ |
| 351 | static void busy_msleep( unsigned long msec ) |
| 352 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 353 | struct mbedtls_timing_hr_time hires; |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 354 | unsigned long i = 0; /* for busy-waiting */ |
| 355 | volatile unsigned long j; /* to prevent optimisation */ |
| 356 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 357 | (void) mbedtls_timing_get_timer( &hires, 1 ); |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 358 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 359 | while( mbedtls_timing_get_timer( &hires, 0 ) < msec ) |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 360 | i++; |
| 361 | |
| 362 | j = i; |
| 363 | (void) j; |
| 364 | } |
| 365 | |
| 366 | /* |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 367 | * Checkup routine |
Manuel Pégourié-Gonnard | 0f79bab | 2014-04-09 09:56:16 +0200 | [diff] [blame] | 368 | * |
| 369 | * Warning: this is work in progress, some tests may not be reliable enough |
| 370 | * yet! False positives may happen. |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 371 | */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 372 | int mbedtls_timing_self_test( int verbose ) |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 373 | { |
| 374 | unsigned long cycles, ratio; |
| 375 | unsigned long millisecs, secs; |
| 376 | int hardfail; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 377 | struct mbedtls_timing_hr_time hires; |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 378 | |
Paul Bakker | 66d5d07 | 2014-06-17 16:39:18 +0200 | [diff] [blame] | 379 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 380 | mbedtls_printf( " TIMING tests note: will take some time!\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 381 | |
| 382 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 383 | mbedtls_printf( " TIMING test #1 (m_sleep / get_timer): " ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 384 | |
| 385 | for( secs = 1; secs <= 3; secs++ ) |
| 386 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 387 | (void) mbedtls_timing_get_timer( &hires, 1 ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 388 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 389 | mbedtls_timing_m_sleep( (int)( 500 * secs ) ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 390 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 391 | millisecs = mbedtls_timing_get_timer( &hires, 0 ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 392 | |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 393 | if( millisecs < 450 * secs || millisecs > 550 * secs ) |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 394 | { |
| 395 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 396 | mbedtls_printf( "failed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 397 | |
| 398 | return( 1 ); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 403 | mbedtls_printf( "passed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 404 | |
| 405 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 406 | mbedtls_printf( " TIMING test #2 (set_alarm / get_timer): " ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 407 | |
| 408 | for( secs = 1; secs <= 3; secs++ ) |
| 409 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 410 | (void) mbedtls_timing_get_timer( &hires, 1 ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 411 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 412 | mbedtls_set_alarm( (int) secs ); |
| 413 | while( !mbedtls_timing_alarmed ) |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 414 | ; |
| 415 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 416 | millisecs = mbedtls_timing_get_timer( &hires, 0 ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 417 | |
| 418 | if( millisecs < 900 * secs || millisecs > 1100 * secs ) |
| 419 | { |
| 420 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 421 | mbedtls_printf( "failed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 422 | |
| 423 | return( 1 ); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 428 | mbedtls_printf( "passed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 429 | |
| 430 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 431 | mbedtls_printf( " TIMING test #3 (hardclock / get_timer): " ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 432 | |
| 433 | /* |
| 434 | * Allow one failure for possible counter wrapping. |
| 435 | * On a 4Ghz 32-bit machine the cycle counter wraps about once per second; |
| 436 | * since the whole test is about 10ms, it shouldn't happen twice in a row. |
| 437 | */ |
| 438 | hardfail = 0; |
| 439 | |
| 440 | hard_test: |
| 441 | if( hardfail > 1 ) |
| 442 | { |
| 443 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 444 | mbedtls_printf( "failed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 445 | |
| 446 | return( 1 ); |
| 447 | } |
| 448 | |
| 449 | /* Get a reference ratio cycles/ms */ |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 450 | millisecs = 1; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 451 | cycles = mbedtls_timing_hardclock(); |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 452 | busy_msleep( millisecs ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 453 | cycles = mbedtls_timing_hardclock() - cycles; |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 454 | ratio = cycles / millisecs; |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 455 | |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 456 | /* Check that the ratio is mostly constant */ |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 457 | for( millisecs = 2; millisecs <= 4; millisecs++ ) |
| 458 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 459 | cycles = mbedtls_timing_hardclock(); |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 460 | busy_msleep( millisecs ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 461 | cycles = mbedtls_timing_hardclock() - cycles; |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 462 | |
| 463 | /* Allow variation up to 20% */ |
| 464 | if( cycles / millisecs < ratio - ratio / 5 || |
| 465 | cycles / millisecs > ratio + ratio / 5 ) |
| 466 | { |
| 467 | hardfail++; |
| 468 | goto hard_test; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 473 | mbedtls_printf( "passed\n" ); |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 474 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 475 | #if defined(MBEDTLS_NET_C) && defined(MBEDTLS_HAVE_TIME) |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 476 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 477 | mbedtls_printf( " TIMING test #4 (net_usleep/ get_timer): " ); |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 478 | |
| 479 | for( secs = 1; secs <= 3; secs++ ) |
| 480 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 481 | (void) mbedtls_timing_get_timer( &hires, 1 ); |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 482 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 483 | mbedtls_net_usleep( 500000 * secs ); |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 484 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 485 | millisecs = mbedtls_timing_get_timer( &hires, 0 ); |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 486 | |
| 487 | if( millisecs < 450 * secs || millisecs > 550 * secs ) |
| 488 | { |
| 489 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 490 | mbedtls_printf( "failed\n" ); |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 491 | |
| 492 | return( 1 ); |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 497 | mbedtls_printf( "passed\n" ); |
| 498 | #endif /* MBEDTLS_NET_C */ |
Manuel Pégourié-Gonnard | 79e5842 | 2014-04-02 18:42:01 +0200 | [diff] [blame] | 499 | |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 500 | if( verbose != 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 501 | mbedtls_printf( "\n" ); |
Manuel Pégourié-Gonnard | e1ac0f8 | 2014-05-28 11:44:20 +0200 | [diff] [blame] | 502 | |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 503 | return( 0 ); |
| 504 | } |
| 505 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 506 | #endif /* MBEDTLS_SELF_TEST */ |
Manuel Pégourié-Gonnard | 470fc93 | 2014-03-27 20:07:08 +0100 | [diff] [blame] | 507 | |
Manuel Pégourié-Gonnard | 8903fe0 | 2015-05-12 19:30:45 +0200 | [diff] [blame^] | 508 | #endif /* MBEDTLS_TIMING_C */ |