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mbedtls/programs/test/selftest.c
Gilles Peskine 945b23c46f Include platform.h unconditionally: automatic part 
We used to include platform.h only when MBEDTLS_PLATFORM_C was enabled, and
to define ad hoc replacements for mbedtls_xxx functions on a case-by-case
basis when MBEDTLS_PLATFORM_C was disabled. The only reason for this
complication was to allow building individual source modules without copying
platform.h. This is not something we support or recommend anymore, so get
rid of the complication: include platform.h unconditionally.

There should be no change in behavior since just including the header should
not change the behavior of a program.

This commit replaces most occurrences of conditional inclusion of
platform.h, using the following code:

```
perl -i -0777 -pe 's!#if.*\n#include "mbedtls/platform.h"\n(#else.*\n(#define (mbedtls|MBEDTLS)_.*\n|#include <(stdarg|stddef|stdio|stdlib|string|time)\.h>\n)*)?#endif.*!#include "mbedtls/platform.h"!mg' $(git grep -l '#include "mbedtls/platform.h"')
```

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-09-15 20:33:07 +02:00

530 lines
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C
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/*
* Self-test demonstration program
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define MBEDTLS_ALLOW_PRIVATE_ACCESS
#include "mbedtls/build_info.h"
#include "mbedtls/entropy.h"
#include "mbedtls/hmac_drbg.h"
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/dhm.h"
#include "mbedtls/gcm.h"
#include "mbedtls/ccm.h"
#include "mbedtls/cmac.h"
#include "mbedtls/md5.h"
#include "mbedtls/ripemd160.h"
#include "mbedtls/sha1.h"
#include "mbedtls/sha256.h"
#include "mbedtls/sha512.h"
#include "mbedtls/des.h"
#include "mbedtls/aes.h"
#include "mbedtls/camellia.h"
#include "mbedtls/aria.h"
#include "mbedtls/chacha20.h"
#include "mbedtls/poly1305.h"
#include "mbedtls/chachapoly.h"
#include "mbedtls/base64.h"
#include "mbedtls/bignum.h"
#include "mbedtls/rsa.h"
#include "mbedtls/x509.h"
#include "mbedtls/pkcs5.h"
#include "mbedtls/ecp.h"
#include "mbedtls/ecjpake.h"
#include "mbedtls/timing.h"
#include "mbedtls/nist_kw.h"
#include "mbedtls/debug.h"
#include <limits.h>
#include <string.h>
#include "mbedtls/platform.h"
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
#include "mbedtls/memory_buffer_alloc.h"
#endif
#if defined MBEDTLS_SELF_TEST
/* Sanity check for malloc. This is not expected to fail, and is rather
* intended to display potentially useful information about the platform,
* in particular the behavior of malloc(0). */
static int calloc_self_test( int verbose )
{
int failures = 0;
void *empty1 = mbedtls_calloc( 0, 1 );
void *empty2 = mbedtls_calloc( 0, 1 );
void *buffer1 = mbedtls_calloc( 1, 1 );
void *buffer2 = mbedtls_calloc( 1, 1 );
if( empty1 == NULL && empty2 == NULL )
{
if( verbose )
mbedtls_printf( " CALLOC(0): passed (NULL)\n" );
}
else if( empty1 == NULL || empty2 == NULL )
{
if( verbose )
mbedtls_printf( " CALLOC(0): failed (mix of NULL and non-NULL)\n" );
++failures;
}
else if( empty1 == empty2 )
{
if( verbose )
mbedtls_printf( " CALLOC(0): passed (same non-null)\n" );
}
else
{
if( verbose )
mbedtls_printf( " CALLOC(0): passed (distinct non-null)\n" );
}
if( buffer1 == NULL || buffer2 == NULL )
{
if( verbose )
mbedtls_printf( " CALLOC(1): failed (NULL)\n" );
++failures;
}
else if( buffer1 == buffer2 )
{
if( verbose )
mbedtls_printf( " CALLOC(1): failed (same buffer twice)\n" );
++failures;
}
else
{
if( verbose )
mbedtls_printf( " CALLOC(1): passed\n" );
}
mbedtls_free( buffer1 );
buffer1 = mbedtls_calloc( 1, 1 );
if( buffer1 == NULL )
{
if( verbose )
mbedtls_printf( " CALLOC(1 again): failed (NULL)\n" );
++failures;
}
else
{
if( verbose )
mbedtls_printf( " CALLOC(1 again): passed\n" );
}
if( verbose )
mbedtls_printf( "\n" );
mbedtls_free( empty1 );
mbedtls_free( empty2 );
mbedtls_free( buffer1 );
mbedtls_free( buffer2 );
return( failures );
}
#endif /* MBEDTLS_SELF_TEST */
static int test_snprintf( size_t n, const char *ref_buf, int ref_ret )
{
int ret;
char buf[10] = "xxxxxxxxx";
const char ref[10] = "xxxxxxxxx";
ret = mbedtls_snprintf( buf, n, "%s", "123" );
if( ret < 0 || (size_t) ret >= n )
ret = -1;
if( strncmp( ref_buf, buf, sizeof( buf ) ) != 0 ||
ref_ret != ret ||
memcmp( buf + n, ref + n, sizeof( buf ) - n ) != 0 )
{
return( 1 );
}
return( 0 );
}
static int run_test_snprintf( void )
{
return( test_snprintf( 0, "xxxxxxxxx", -1 ) != 0 ||
test_snprintf( 1, "", -1 ) != 0 ||
test_snprintf( 2, "1", -1 ) != 0 ||
test_snprintf( 3, "12", -1 ) != 0 ||
test_snprintf( 4, "123", 3 ) != 0 ||
test_snprintf( 5, "123", 3 ) != 0 );
}
/*
* Check if a seed file is present, and if not create one for the entropy
* self-test. If this fails, we attempt the test anyway, so no error is passed
* back.
*/
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_ENTROPY_C)
#if defined(MBEDTLS_ENTROPY_NV_SEED) && !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
static void create_entropy_seed_file( void )
{
int result;
size_t output_len = 0;
unsigned char seed_value[MBEDTLS_ENTROPY_BLOCK_SIZE];
/* Attempt to read the entropy seed file. If this fails - attempt to write
* to the file to ensure one is present. */
result = mbedtls_platform_std_nv_seed_read( seed_value,
MBEDTLS_ENTROPY_BLOCK_SIZE );
if( 0 == result )
return;
result = mbedtls_platform_entropy_poll( NULL,
seed_value,
MBEDTLS_ENTROPY_BLOCK_SIZE,
&output_len );
if( 0 != result )
return;
if( MBEDTLS_ENTROPY_BLOCK_SIZE != output_len )
return;
mbedtls_platform_std_nv_seed_write( seed_value, MBEDTLS_ENTROPY_BLOCK_SIZE );
}
#endif
int mbedtls_entropy_self_test_wrapper( int verbose )
{
#if defined(MBEDTLS_ENTROPY_NV_SEED) && !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
create_entropy_seed_file( );
#endif
return( mbedtls_entropy_self_test( verbose ) );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
int mbedtls_memory_buffer_alloc_free_and_self_test( int verbose )
{
if( verbose != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_memory_buffer_alloc_status( );
#endif
}
mbedtls_memory_buffer_alloc_free( );
return( mbedtls_memory_buffer_alloc_self_test( verbose ) );
}
#endif
typedef struct
{
const char *name;
int ( *function )( int );
} selftest_t;
const selftest_t selftests[] =
{
{"calloc", calloc_self_test},
#if defined(MBEDTLS_MD5_C)
{"md5", mbedtls_md5_self_test},
#endif
#if defined(MBEDTLS_RIPEMD160_C)
{"ripemd160", mbedtls_ripemd160_self_test},
#endif
#if defined(MBEDTLS_SHA1_C)
{"sha1", mbedtls_sha1_self_test},
#endif
#if defined(MBEDTLS_SHA256_C)
{"sha256", mbedtls_sha256_self_test},
#endif
#if defined(MBEDTLS_SHA512_C)
{"sha512", mbedtls_sha512_self_test},
#endif
#if defined(MBEDTLS_DES_C)
{"des", mbedtls_des_self_test},
#endif
#if defined(MBEDTLS_AES_C)
{"aes", mbedtls_aes_self_test},
#endif
#if defined(MBEDTLS_GCM_C) && defined(MBEDTLS_AES_C)
{"gcm", mbedtls_gcm_self_test},
#endif
#if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_AES_C)
{"ccm", mbedtls_ccm_self_test},
#endif
#if defined(MBEDTLS_NIST_KW_C) && defined(MBEDTLS_AES_C)
{"nist_kw", mbedtls_nist_kw_self_test},
#endif
#if defined(MBEDTLS_CMAC_C)
{"cmac", mbedtls_cmac_self_test},
#endif
#if defined(MBEDTLS_CHACHA20_C)
{"chacha20", mbedtls_chacha20_self_test},
#endif
#if defined(MBEDTLS_POLY1305_C)
{"poly1305", mbedtls_poly1305_self_test},
#endif
#if defined(MBEDTLS_CHACHAPOLY_C)
{"chacha20-poly1305", mbedtls_chachapoly_self_test},
#endif
#if defined(MBEDTLS_BASE64_C)
{"base64", mbedtls_base64_self_test},
#endif
#if defined(MBEDTLS_BIGNUM_C)
{"mpi", mbedtls_mpi_self_test},
#endif
#if defined(MBEDTLS_RSA_C)
{"rsa", mbedtls_rsa_self_test},
#endif
#if defined(MBEDTLS_CAMELLIA_C)
{"camellia", mbedtls_camellia_self_test},
#endif
#if defined(MBEDTLS_ARIA_C)
{"aria", mbedtls_aria_self_test},
#endif
#if defined(MBEDTLS_CTR_DRBG_C)
{"ctr_drbg", mbedtls_ctr_drbg_self_test},
#endif
#if defined(MBEDTLS_HMAC_DRBG_C)
{"hmac_drbg", mbedtls_hmac_drbg_self_test},
#endif
#if defined(MBEDTLS_ECP_C)
{"ecp", mbedtls_ecp_self_test},
#endif
#if defined(MBEDTLS_ECJPAKE_C)
{"ecjpake", mbedtls_ecjpake_self_test},
#endif
#if defined(MBEDTLS_DHM_C)
{"dhm", mbedtls_dhm_self_test},
#endif
#if defined(MBEDTLS_ENTROPY_C)
{"entropy", mbedtls_entropy_self_test_wrapper},
#endif
#if defined(MBEDTLS_PKCS5_C)
{"pkcs5", mbedtls_pkcs5_self_test},
#endif
/* Heap test comes last */
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
{"memory_buffer_alloc", mbedtls_memory_buffer_alloc_free_and_self_test},
#endif
{NULL, NULL}
};
#endif /* MBEDTLS_SELF_TEST */
int main( int argc, char *argv[] )
{
#if defined(MBEDTLS_SELF_TEST)
const selftest_t *test;
#endif /* MBEDTLS_SELF_TEST */
char **argp;
int v = 1; /* v=1 for verbose mode */
int exclude_mode = 0;
int suites_tested = 0, suites_failed = 0;
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && defined(MBEDTLS_SELF_TEST)
unsigned char buf[1000000];
#endif
void *pointer;
/*
* The C standard doesn't guarantee that all-bits-0 is the representation
* of a NULL pointer. We do however use that in our code for initializing
* structures, which should work on every modern platform. Let's be sure.
*/
memset( &pointer, 0, sizeof( void * ) );
if( pointer != NULL )
{
mbedtls_printf( "all-bits-zero is not a NULL pointer\n" );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
/*
* The C standard allows padding bits in the representation
* of standard integer types, but our code does currently not
* support them.
*
* Here we check that the underlying C implementation doesn't
* use padding bits, and fail cleanly if it does.
*
* The check works by casting the maximum value representable
* by a given integer type into the unpadded integer type of the
* same bit-width and checking that it agrees with the maximum value
* of that unpadded type. For example, for a 4-byte int,
* MAX_INT should be 0x7fffffff in int32_t. This assumes that
* CHAR_BIT == 8, which is checked in check_config.h.
*
* We assume that [u]intxx_t exist and that they don't
* have padding bits, as the standard requires.
*/
#define CHECK_PADDING_SIGNED(TYPE, NAME) \
do \
{ \
if( sizeof( TYPE ) == 2 || sizeof( TYPE ) == 4 || \
sizeof( TYPE ) == 8 ) { \
if( ( sizeof( TYPE ) == 2 && \
(int16_t) NAME ## _MAX != 0x7FFF ) || \
( sizeof( TYPE ) == 4 && \
(int32_t) NAME ## _MAX != 0x7FFFFFFF ) || \
( sizeof( TYPE ) == 8 && \
(int64_t) NAME ## _MAX != 0x7FFFFFFFFFFFFFFF ) ) \
{ \
mbedtls_printf( "Type '" #TYPE "' has padding bits\n" );\
mbedtls_exit( MBEDTLS_EXIT_FAILURE ); \
} \
} else { \
mbedtls_printf( "Padding checks only implemented for types of size 2, 4 or 8" \
" - cannot check type '" #TYPE "' of size %" MBEDTLS_PRINTF_SIZET "\n", \
sizeof( TYPE ) ); \
mbedtls_exit( MBEDTLS_EXIT_FAILURE ); \
} \
} while( 0 )
#define CHECK_PADDING_UNSIGNED(TYPE, NAME) \
do \
{ \
if( ( sizeof( TYPE ) == 2 && \
(uint16_t) NAME ## _MAX != 0xFFFF ) || \
( sizeof( TYPE ) == 4 && \
(uint32_t) NAME ## _MAX != 0xFFFFFFFF ) || \
( sizeof( TYPE ) == 8 && \
(uint64_t) NAME ## _MAX != 0xFFFFFFFFFFFFFFFF ) ) \
{ \
mbedtls_printf( "Type '" #TYPE "' has padding bits\n" ); \
mbedtls_exit( MBEDTLS_EXIT_FAILURE ); \
} \
} while( 0 )
CHECK_PADDING_SIGNED( short, SHRT );
CHECK_PADDING_SIGNED( int, INT );
CHECK_PADDING_SIGNED( long, LONG );
CHECK_PADDING_SIGNED( long long, LLONG );
CHECK_PADDING_SIGNED( ptrdiff_t, PTRDIFF );
CHECK_PADDING_UNSIGNED( unsigned short, USHRT );
CHECK_PADDING_UNSIGNED( unsigned, UINT );
CHECK_PADDING_UNSIGNED( unsigned long, ULONG );
CHECK_PADDING_UNSIGNED( unsigned long long, ULLONG );
CHECK_PADDING_UNSIGNED( size_t, SIZE );
#undef CHECK_PADDING_SIGNED
#undef CHECK_PADDING_UNSIGNED
/*
* Make sure we have a snprintf that correctly zero-terminates
*/
if( run_test_snprintf() != 0 )
{
mbedtls_printf( "the snprintf implementation is broken\n" );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
for( argp = argv + ( argc >= 1 ? 1 : argc ); *argp != NULL; ++argp )
{
if( strcmp( *argp, "--quiet" ) == 0 ||
strcmp( *argp, "-q" ) == 0 )
{
v = 0;
}
else if( strcmp( *argp, "--exclude" ) == 0 ||
strcmp( *argp, "-x" ) == 0 )
{
exclude_mode = 1;
}
else
break;
}
if( v != 0 )
mbedtls_printf( "\n" );
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
mbedtls_memory_buffer_alloc_init( buf, sizeof(buf) );
#endif
if( *argp != NULL && exclude_mode == 0 )
{
/* Run the specified tests */
for( ; *argp != NULL; argp++ )
{
for( test = selftests; test->name != NULL; test++ )
{
if( !strcmp( *argp, test->name ) )
{
if( test->function( v ) != 0 )
{
suites_failed++;
}
suites_tested++;
break;
}
}
if( test->name == NULL )
{
mbedtls_printf( " Test suite %s not available -> failed\n\n", *argp );
suites_failed++;
}
}
}
else
{
/* Run all the tests except excluded ones */
for( test = selftests; test->name != NULL; test++ )
{
if( exclude_mode )
{
char **excluded;
for( excluded = argp; *excluded != NULL; ++excluded )
{
if( !strcmp( *excluded, test->name ) )
break;
}
if( *excluded )
{
if( v )
mbedtls_printf( " Skip: %s\n", test->name );
continue;
}
}
if( test->function( v ) != 0 )
{
suites_failed++;
}
suites_tested++;
}
}
#else
(void) exclude_mode;
mbedtls_printf( " MBEDTLS_SELF_TEST not defined.\n" );
#endif
if( v != 0 )
{
mbedtls_printf( " Executed %d test suites\n\n", suites_tested );
if( suites_failed > 0)
{
mbedtls_printf( " [ %d tests FAIL ]\n\n", suites_failed );
}
else
{
mbedtls_printf( " [ All tests PASS ]\n\n" );
}
}
if( suites_failed > 0)
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
mbedtls_exit( MBEDTLS_EXIT_SUCCESS );
}
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