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tests: Move generic helper functions

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Move generic helper functions from helpers.functions
to helpers.c

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-06-09 16:27:37 +02:00
parent b6d6d4c61a
commit f40529d5f4
3 changed files with 176 additions and 144 deletions
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47
tests/include/test/helpers.h
View file

@ -32,4 +32,51 @@
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_fprintf fprintf
#define mbedtls_snprintf snprintf
#define mbedtls_calloc calloc
#define mbedtls_free free
#define mbedtls_exit exit
#define mbedtls_time time
#define mbedtls_time_t time_t
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif
#include <stddef.h>
#include <stdint.h>
int platform_setup( void );
void platform_teardown( void );
int unhexify( unsigned char *obuf, const char *ibuf );
void hexify( unsigned char *obuf, const unsigned char *ibuf, int len );
/**
* Allocate and zeroize a buffer.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
unsigned char *zero_alloc( size_t len );
/**
* Allocate and fill a buffer from hex data.
*
* The buffer is sized exactly as needed. This allows to detect buffer
* overruns (including overreads) when running the test suite under valgrind.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
unsigned char *unhexify_alloc( const char *ibuf, size_t *olen );
int hexcmp( uint8_t * a, uint8_t * b, uint32_t a_len, uint32_t b_len );
#endif /* TEST_HELPERS_H */

129
tests/src/helpers.c
View file

@ -17,3 +17,132 @@
*/
#include <test/helpers.h>
#include <test/macros.h>
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
static mbedtls_platform_context platform_ctx;
#endif
int platform_setup( void )
{
int ret = 0;
#if defined(MBEDTLS_PLATFORM_C)
ret = mbedtls_platform_setup( &platform_ctx );
#endif /* MBEDTLS_PLATFORM_C */
return( ret );
}
void platform_teardown( void )
{
#if defined(MBEDTLS_PLATFORM_C)
mbedtls_platform_teardown( &platform_ctx );
#endif /* MBEDTLS_PLATFORM_C */
}
int unhexify( unsigned char *obuf, const char *ibuf )
{
unsigned char c, c2;
int len = strlen( ibuf ) / 2;
TEST_HELPER_ASSERT( strlen( ibuf ) % 2 == 0 ); /* must be even number of bytes */
while( *ibuf != 0 )
{
c = *ibuf++;
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
TEST_HELPER_ASSERT( 0 );
c2 = *ibuf++;
if( c2 >= '0' && c2 <= '9' )
c2 -= '0';
else if( c2 >= 'a' && c2 <= 'f' )
c2 -= 'a' - 10;
else if( c2 >= 'A' && c2 <= 'F' )
c2 -= 'A' - 10;
else
TEST_HELPER_ASSERT( 0 );
*obuf++ = ( c << 4 ) | c2;
}
return len;
}
void hexify( unsigned char *obuf, const unsigned char *ibuf, int len )
{
unsigned char l, h;
while( len != 0 )
{
h = *ibuf / 16;
l = *ibuf % 16;
if( h < 10 )
*obuf++ = '0' + h;
else
*obuf++ = 'a' + h - 10;
if( l < 10 )
*obuf++ = '0' + l;
else
*obuf++ = 'a' + l - 10;
++ibuf;
len--;
}
}
unsigned char *zero_alloc( size_t len )
{
void *p;
size_t actual_len = ( len != 0 ) ? len : 1;
p = mbedtls_calloc( 1, actual_len );
TEST_HELPER_ASSERT( p != NULL );
memset( p, 0x00, actual_len );
return( p );
}
unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
{
unsigned char *obuf;
*olen = strlen( ibuf ) / 2;
if( *olen == 0 )
return( zero_alloc( *olen ) );
obuf = mbedtls_calloc( 1, *olen );
TEST_HELPER_ASSERT( obuf != NULL );
(void) unhexify( obuf, ibuf );
return( obuf );
}
int hexcmp( uint8_t * a, uint8_t * b, uint32_t a_len, uint32_t b_len )
{
int ret = 0;
uint32_t i = 0;
if( a_len != b_len )
return( -1 );
for( i = 0; i < a_len; i++ )
{
if( a[i] != b[i] )
{
ret = -1;
break;
}
}
return ret;
}

144
tests/suites/helpers.function
View file

@ -368,10 +368,6 @@ typedef struct
test_info_t;
static test_info_t test_info;
#if defined(MBEDTLS_PLATFORM_C)
static mbedtls_platform_context platform_ctx;
#endif
#if defined(MBEDTLS_CHECK_PARAMS)
jmp_buf param_fail_jmp;
jmp_buf jmp_tmp;
@ -424,22 +420,6 @@ void test_skip( const char *test, int line_no, const char* filename )
test_info.filename = filename;
}
int platform_setup()
{
int ret = 0;
#if defined(MBEDTLS_PLATFORM_C)
ret = mbedtls_platform_setup( &platform_ctx );
#endif /* MBEDTLS_PLATFORM_C */
return( ret );
}
void platform_teardown()
{
#if defined(MBEDTLS_PLATFORM_C)
mbedtls_platform_teardown( &platform_ctx );
#endif /* MBEDTLS_PLATFORM_C */
}
#if defined(MBEDTLS_CHECK_PARAMS)
void mbedtls_param_failed( const char *failure_condition,
const char *file,
@ -507,111 +487,6 @@ static void close_output( FILE* out_stream )
}
#endif /* __unix__ || __APPLE__ __MACH__ */
int unhexify( unsigned char *obuf, const char *ibuf )
{
unsigned char c, c2;
int len = strlen( ibuf ) / 2;
TEST_HELPER_ASSERT( strlen( ibuf ) % 2 == 0 ); /* must be even number of bytes */
while( *ibuf != 0 )
{
c = *ibuf++;
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
TEST_HELPER_ASSERT( 0 );
c2 = *ibuf++;
if( c2 >= '0' && c2 <= '9' )
c2 -= '0';
else if( c2 >= 'a' && c2 <= 'f' )
c2 -= 'a' - 10;
else if( c2 >= 'A' && c2 <= 'F' )
c2 -= 'A' - 10;
else
TEST_HELPER_ASSERT( 0 );
*obuf++ = ( c << 4 ) | c2;
}
return len;
}
void hexify( unsigned char *obuf, const unsigned char *ibuf, int len )
{
unsigned char l, h;
while( len != 0 )
{
h = *ibuf / 16;
l = *ibuf % 16;
if( h < 10 )
*obuf++ = '0' + h;
else
*obuf++ = 'a' + h - 10;
if( l < 10 )
*obuf++ = '0' + l;
else
*obuf++ = 'a' + l - 10;
++ibuf;
len--;
}
}
/**
* Allocate and zeroize a buffer.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
unsigned char *zero_alloc( size_t len )
{
void *p;
size_t actual_len = ( len != 0 ) ? len : 1;
p = mbedtls_calloc( 1, actual_len );
TEST_HELPER_ASSERT( p != NULL );
memset( p, 0x00, actual_len );
return( p );
}
/**
* Allocate and fill a buffer from hex data.
*
* The buffer is sized exactly as needed. This allows to detect buffer
* overruns (including overreads) when running the test suite under valgrind.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
{
unsigned char *obuf;
*olen = strlen( ibuf ) / 2;
if( *olen == 0 )
return( zero_alloc( *olen ) );
obuf = mbedtls_calloc( 1, *olen );
TEST_HELPER_ASSERT( obuf != NULL );
(void) unhexify( obuf, ibuf );
return( obuf );
}
/**
* This function just returns data from rand().
* Although predictable and often similar on multiple
@ -752,22 +627,3 @@ int rnd_pseudo_rand( void *rng_state, unsigned char *output, size_t len )
return( 0 );
}
int hexcmp( uint8_t * a, uint8_t * b, uint32_t a_len, uint32_t b_len )
{
int ret = 0;
uint32_t i = 0;
if( a_len != b_len )
return( -1 );
for( i = 0; i < a_len; i++ )
{
if( a[i] != b[i] )
{
ret = -1;
break;
}
}
return ret;
}