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cosmopolitan/third_party/mbedtls/test/test_suite_entropy.c
Justine Tunney fa20edc44d
Reduce header complexity 
- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party
2023-11-28 14:39:42 -08:00

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/*
* 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.
*/
#include "third_party/mbedtls/test/test.inc"
/*
* *** THIS FILE WAS MACHINE GENERATED ***
*
* This file has been machine generated using the script:
* generate_test_code.py and then mbedtls_test_suite.sh and then mbedtls_test_suite.sh
*
* Test file : ./test_suite_entropy.c
*
* The following files were used to create this file.
*
* Main code file : suites/main_test.function
* Platform code file : suites/host_test.function
* Helper file : suites/helpers.function
* Test suite file : suites/test_suite_entropy.function
* Test suite data : suites/test_suite_entropy.data
*
*/
#define TEST_SUITE_ACTIVE
#if defined(MBEDTLS_ENTROPY_C)
#include "third_party/mbedtls/entropy.h"
#include "third_party/mbedtls/entropy_poll.h"
#include "third_party/mbedtls/md.h"
typedef enum
{
DUMMY_CONSTANT_LENGTH, /* Output context->length bytes */
DUMMY_REQUESTED_LENGTH, /* Output whatever length was requested */
DUMMY_FAIL, /* Return an error code */
} entropy_dummy_instruction;
typedef struct
{
entropy_dummy_instruction instruction;
size_t length; /* Length to return for DUMMY_CONSTANT_LENGTH */
size_t calls; /* Incremented at each call */
} entropy_dummy_context;
/*
* Dummy entropy source
*
* If data is NULL, write exactly the requested length.
* Otherwise, write the length indicated by data or error if negative
*/
static int entropy_dummy_source( void *arg, unsigned char *output,
size_t len, size_t *olen )
{
entropy_dummy_context *context = arg;
++context->calls;
switch( context->instruction )
{
case DUMMY_CONSTANT_LENGTH:
*olen = context->length;
break;
case DUMMY_REQUESTED_LENGTH:
*olen = len;
break;
case DUMMY_FAIL:
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
memset( output, 0x2a, *olen );
return( 0 );
}
/*
* Ability to clear entropy sources to allow testing with just predefined
* entropy sources. This function or tests depending on it might break if there
* are internal changes to how entropy sources are registered.
*
* To be called immediately after mbedtls_entropy_init().
*
* Just resetting the counter. New sources will overwrite existing ones.
* This might break memory checks in the future if sources need 'free-ing' then
* as well.
*/
static void entropy_clear_sources( mbedtls_entropy_context *ctx )
{
ctx->source_count = 0;
}
#if defined(MBEDTLS_ENTROPY_NV_SEED)
/*
* NV seed read/write functions that use a buffer instead of a file
*/
static unsigned char buffer_seed[MBEDTLS_ENTROPY_BLOCK_SIZE];
int buffer_nv_seed_read( unsigned char *buf, size_t buf_len )
{
if( buf_len != MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
memcpy( buf, buffer_seed, MBEDTLS_ENTROPY_BLOCK_SIZE );
return( 0 );
}
int buffer_nv_seed_write( unsigned char *buf, size_t buf_len )
{
if( buf_len != MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
memcpy( buffer_seed, buf, MBEDTLS_ENTROPY_BLOCK_SIZE );
return( 0 );
}
/*
* NV seed read/write helpers that fill the base seedfile
*/
static int write_nv_seed( unsigned char *buf, size_t buf_len )
{
FILE *f;
if( buf_len != MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
if( ( f = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "w" ) ) == NULL )
return( -1 );
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) !=
MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
fclose( f );
return( 0 );
}
int read_nv_seed( unsigned char *buf, size_t buf_len )
{
FILE *f;
if( buf_len != MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
if( ( f = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "rb" ) ) == NULL )
return( -1 );
if( fread( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) !=
MBEDTLS_ENTROPY_BLOCK_SIZE )
return( -1 );
fclose( f );
return( 0 );
}
#endif /* MBEDTLS_ENTROPY_NV_SEED */
void test_entropy_init_free( int reinit )
{
mbedtls_entropy_context ctx;
/* Double free is not explicitly documented to work, but it is convenient
* to call mbedtls_entropy_free() unconditionally on an error path without
* checking whether it has already been called in the success path. */
mbedtls_entropy_init( &ctx );
mbedtls_entropy_free( &ctx );
if( reinit )
mbedtls_entropy_init( &ctx );
mbedtls_entropy_free( &ctx );
/* This test case always succeeds, functionally speaking. A plausible
* bug might trigger an invalid pointer dereference or a memory leak. */
goto exit;
exit:
;
}
void test_entropy_init_free_wrapper( void ** params )
{
test_entropy_init_free( *( (int *) params[0] ) );
}
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#if defined(MBEDTLS_FS_IO)
void test_entropy_seed_file( char * path, int ret )
{
mbedtls_entropy_context ctx;
mbedtls_entropy_init( &ctx );
TEST_ASSERT( mbedtls_entropy_write_seed_file( &ctx, path ) == ret );
TEST_ASSERT( mbedtls_entropy_update_seed_file( &ctx, path ) == ret );
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_seed_file_wrapper( void ** params )
{
test_entropy_seed_file( (char *) params[0], *( (int *) params[1] ) );
}
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ENTROPY_NV_SEED */
void test_entropy_no_sources( )
{
mbedtls_entropy_context ctx;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
mbedtls_entropy_init( &ctx );
entropy_clear_sources( &ctx );
TEST_EQUAL( mbedtls_entropy_func( &ctx, buf, sizeof( buf ) ),
MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED );
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_no_sources_wrapper( void ** params )
{
(void)params;
test_entropy_no_sources( );
}
void test_entropy_too_many_sources( )
{
mbedtls_entropy_context ctx;
size_t i;
entropy_dummy_context dummy = {DUMMY_REQUESTED_LENGTH, 0, 0};
mbedtls_entropy_init( &ctx );
/*
* It's hard to tell precisely when the error will occur,
* since we don't know how many sources were automatically added.
*/
for( i = 0; i < MBEDTLS_ENTROPY_MAX_SOURCES; i++ )
(void) mbedtls_entropy_add_source( &ctx, entropy_dummy_source, &dummy,
16, MBEDTLS_ENTROPY_SOURCE_WEAK );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source, &dummy,
16, MBEDTLS_ENTROPY_SOURCE_WEAK )
== MBEDTLS_ERR_ENTROPY_MAX_SOURCES );
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_too_many_sources_wrapper( void ** params )
{
(void)params;
test_entropy_too_many_sources( );
}
#if defined(ENTROPY_HAVE_STRONG)
void test_entropy_func_len( int len, int ret )
{
mbedtls_entropy_context ctx;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE + 10] = { 0 };
unsigned char acc[MBEDTLS_ENTROPY_BLOCK_SIZE + 10] = { 0 };
size_t i, j;
mbedtls_entropy_init( &ctx );
/*
* See comments in mbedtls_entropy_self_test()
*/
for( i = 0; i < 8; i++ )
{
TEST_ASSERT( mbedtls_entropy_func( &ctx, buf, len ) == ret );
for( j = 0; j < sizeof( buf ); j++ )
acc[j] |= buf[j];
}
if( ret == 0 )
for( j = 0; j < (size_t) len; j++ )
TEST_ASSERT( acc[j] != 0 );
for( j = len; j < sizeof( buf ); j++ )
TEST_ASSERT( acc[j] == 0 );
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_func_len_wrapper( void ** params )
{
test_entropy_func_len( *( (int *) params[0] ), *( (int *) params[1] ) );
}
#endif /* ENTROPY_HAVE_STRONG */
void test_entropy_source_fail( char * path )
{
mbedtls_entropy_context ctx;
unsigned char buf[16];
entropy_dummy_context dummy = {DUMMY_FAIL, 0, 0};
mbedtls_entropy_init( &ctx );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source,
&dummy, 16,
MBEDTLS_ENTROPY_SOURCE_WEAK )
== 0 );
TEST_ASSERT( mbedtls_entropy_func( &ctx, buf, sizeof( buf ) )
== MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
TEST_ASSERT( mbedtls_entropy_gather( &ctx )
== MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
#if defined(MBEDTLS_FS_IO) && defined(MBEDTLS_ENTROPY_NV_SEED)
TEST_ASSERT( mbedtls_entropy_write_seed_file( &ctx, path )
== MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
TEST_ASSERT( mbedtls_entropy_update_seed_file( &ctx, path )
== MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
#else
((void) path);
#endif
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_source_fail_wrapper( void ** params )
{
test_entropy_source_fail( (char *) params[0] );
}
void test_entropy_threshold( int threshold, int chunk_size, int result )
{
mbedtls_entropy_context ctx;
entropy_dummy_context strong =
{DUMMY_CONSTANT_LENGTH, MBEDTLS_ENTROPY_BLOCK_SIZE, 0};
entropy_dummy_context weak = {DUMMY_CONSTANT_LENGTH, chunk_size, 0};
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
int ret;
mbedtls_entropy_init( &ctx );
entropy_clear_sources( &ctx );
/* Set strong source that reaches its threshold immediately and
* a weak source whose threshold is a test parameter. */
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source,
&strong, 1,
MBEDTLS_ENTROPY_SOURCE_STRONG ) == 0 );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source,
&weak, threshold,
MBEDTLS_ENTROPY_SOURCE_WEAK ) == 0 );
ret = mbedtls_entropy_func( &ctx, buf, sizeof( buf ) );
if( result >= 0 )
{
TEST_ASSERT( ret == 0 );
#if defined(MBEDTLS_ENTROPY_NV_SEED)
/* If the NV seed functionality is enabled, there are two entropy
* updates: before and after updating the NV seed. */
result *= 2;
#endif
TEST_ASSERT( weak.calls == (size_t) result );
}
else
{
TEST_ASSERT( ret == result );
}
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_threshold_wrapper( void ** params )
{
test_entropy_threshold( *( (int *) params[0] ), *( (int *) params[1] ), *( (int *) params[2] ) );
}
void test_entropy_calls( int strength1, int strength2,
int threshold, int chunk_size,
int result )
{
/*
* if result >= 0: result = expected number of calls to source 1
* if result < 0: result = expected return code from mbedtls_entropy_func()
*/
mbedtls_entropy_context ctx;
entropy_dummy_context dummy1 = {DUMMY_CONSTANT_LENGTH, chunk_size, 0};
entropy_dummy_context dummy2 = {DUMMY_CONSTANT_LENGTH, chunk_size, 0};
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
int ret;
mbedtls_entropy_init( &ctx );
entropy_clear_sources( &ctx );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source,
&dummy1, threshold,
strength1 ) == 0 );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, entropy_dummy_source,
&dummy2, threshold,
strength2 ) == 0 );
ret = mbedtls_entropy_func( &ctx, buf, sizeof( buf ) );
if( result >= 0 )
{
TEST_ASSERT( ret == 0 );
#if defined(MBEDTLS_ENTROPY_NV_SEED)
/* If the NV seed functionality is enabled, there are two entropy
* updates: before and after updating the NV seed. */
result *= 2;
#endif
TEST_ASSERT( dummy1.calls == (size_t) result );
}
else
{
TEST_ASSERT( ret == result );
}
exit:
mbedtls_entropy_free( &ctx );
}
void test_entropy_calls_wrapper( void ** params )
{
test_entropy_calls( *( (int *) params[0] ), *( (int *) params[1] ), *( (int *) params[2] ), *( (int *) params[3] ), *( (int *) params[4] ) );
}
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#if defined(MBEDTLS_FS_IO)
void test_nv_seed_file_create( )
{
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
TEST_ASSERT( write_nv_seed( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
exit:
;
}
void test_nv_seed_file_create_wrapper( void ** params )
{
(void)params;
test_nv_seed_file_create( );
}
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#if defined(MBEDTLS_FS_IO)
#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
void test_entropy_nv_seed_std_io( )
{
unsigned char io_seed[MBEDTLS_ENTROPY_BLOCK_SIZE];
unsigned char check_seed[MBEDTLS_ENTROPY_BLOCK_SIZE];
memset( io_seed, 1, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( check_seed, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
mbedtls_platform_set_nv_seed( mbedtls_platform_std_nv_seed_read,
mbedtls_platform_std_nv_seed_write );
/* Check if platform NV read and write manipulate the same data */
TEST_ASSERT( write_nv_seed( io_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( mbedtls_nv_seed_read( check_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) ==
MBEDTLS_ENTROPY_BLOCK_SIZE );
TEST_ASSERT( memcmp( io_seed, check_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
memset( check_seed, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
/* Check if platform NV write and raw read manipulate the same data */
TEST_ASSERT( mbedtls_nv_seed_write( io_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) ==
MBEDTLS_ENTROPY_BLOCK_SIZE );
TEST_ASSERT( read_nv_seed( check_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( memcmp( io_seed, check_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
exit:
;
}
void test_entropy_nv_seed_std_io_wrapper( void ** params )
{
(void)params;
test_entropy_nv_seed_std_io( );
}
#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if defined(MBEDTLS_MD_C)
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
void test_entropy_nv_seed( data_t * read_seed )
{
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
const mbedtls_md_info_t *md_info =
mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 );
#elif defined(MBEDTLS_ENTROPY_SHA256_ACCUMULATOR)
const mbedtls_md_info_t *md_info =
mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 );
#else
#error "Unsupported entropy accumulator"
#endif
mbedtls_md_context_t accumulator;
mbedtls_entropy_context ctx;
int (*original_mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len ) =
mbedtls_nv_seed_read;
int (*original_mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len ) =
mbedtls_nv_seed_write;
unsigned char header[2];
unsigned char entropy[MBEDTLS_ENTROPY_BLOCK_SIZE];
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
unsigned char empty[MBEDTLS_ENTROPY_BLOCK_SIZE];
unsigned char check_seed[MBEDTLS_ENTROPY_BLOCK_SIZE];
unsigned char check_entropy[MBEDTLS_ENTROPY_BLOCK_SIZE];
memset( entropy, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( empty, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( check_seed, 2, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( check_entropy, 3, MBEDTLS_ENTROPY_BLOCK_SIZE );
// Make sure we read/write NV seed from our buffers
mbedtls_platform_set_nv_seed( buffer_nv_seed_read, buffer_nv_seed_write );
mbedtls_md_init( &accumulator );
mbedtls_entropy_init( &ctx );
entropy_clear_sources( &ctx );
TEST_ASSERT( mbedtls_entropy_add_source( &ctx, mbedtls_nv_seed_poll, NULL,
MBEDTLS_ENTROPY_BLOCK_SIZE,
MBEDTLS_ENTROPY_SOURCE_STRONG ) == 0 );
// Set the initial NV seed to read
TEST_ASSERT( read_seed->len >= MBEDTLS_ENTROPY_BLOCK_SIZE );
memcpy( buffer_seed, read_seed->x, MBEDTLS_ENTROPY_BLOCK_SIZE );
// Do an entropy run
TEST_ASSERT( mbedtls_entropy_func( &ctx, entropy, sizeof( entropy ) ) == 0 );
// Determine what should have happened with manual entropy internal logic
// Init accumulator
header[1] = MBEDTLS_ENTROPY_BLOCK_SIZE;
TEST_ASSERT( mbedtls_md_setup( &accumulator, md_info, 0 ) == 0 );
// First run for updating write_seed
header[0] = 0;
TEST_ASSERT( mbedtls_md_starts( &accumulator ) == 0 );
TEST_ASSERT( mbedtls_md_update( &accumulator, header, 2 ) == 0 );
TEST_ASSERT( mbedtls_md_update( &accumulator,
read_seed->x, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( mbedtls_md_finish( &accumulator, buf ) == 0 );
TEST_ASSERT( mbedtls_md_starts( &accumulator ) == 0 );
TEST_ASSERT( mbedtls_md_update( &accumulator,
buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( mbedtls_md( md_info, buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
check_seed ) == 0 );
// Second run for actual entropy (triggers mbedtls_entropy_update_nv_seed)
header[0] = MBEDTLS_ENTROPY_SOURCE_MANUAL;
TEST_ASSERT( mbedtls_md_update( &accumulator, header, 2 ) == 0 );
TEST_ASSERT( mbedtls_md_update( &accumulator,
empty, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
header[0] = 0;
TEST_ASSERT( mbedtls_md_update( &accumulator, header, 2 ) == 0 );
TEST_ASSERT( mbedtls_md_update( &accumulator,
check_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( mbedtls_md_finish( &accumulator, buf ) == 0 );
TEST_ASSERT( mbedtls_md( md_info, buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
check_entropy ) == 0 );
// Check result of both NV file and entropy received with the manual calculations
TEST_ASSERT( memcmp( check_seed, buffer_seed, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
TEST_ASSERT( memcmp( check_entropy, entropy, MBEDTLS_ENTROPY_BLOCK_SIZE ) == 0 );
exit:
mbedtls_md_free( &accumulator );
mbedtls_entropy_free( &ctx );
mbedtls_nv_seed_read = original_mbedtls_nv_seed_read;
mbedtls_nv_seed_write = original_mbedtls_nv_seed_write;
}
void test_entropy_nv_seed_wrapper( void ** params )
{
data_t data0 = {(uint8_t *) params[0], *( (uint32_t *) params[1] )};
test_entropy_nv_seed( &data0 );
}
#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#endif /* MBEDTLS_MD_C */
#if defined(ENTROPY_HAVE_STRONG)
#if defined(MBEDTLS_SELF_TEST)
void test_entropy_selftest( int result )
{
TEST_ASSERT( mbedtls_entropy_self_test( 1 ) == result );
exit:
;
}
void test_entropy_selftest_wrapper( void ** params )
{
test_entropy_selftest( *( (int *) params[0] ) );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* ENTROPY_HAVE_STRONG */
#endif /* MBEDTLS_ENTROPY_C */
/*----------------------------------------------------------------------------*/
/* Test dispatch code */
/**
* \brief Evaluates an expression/macro into its literal integer value.
* For optimizing space for embedded targets each expression/macro
* is identified by a unique identifier instead of string literals.
* Identifiers and evaluation code is generated by script:
* generate_test_code.py and then mbedtls_test_suite.sh and then mbedtls_test_suite.sh
*
* \param exp_id Expression identifier.
* \param out_value Pointer to int to hold the integer.
*
* \return 0 if exp_id is found. 1 otherwise.
*/
int get_expression( int32_t exp_id, int32_t * out_value )
{
int ret = KEY_VALUE_MAPPING_FOUND;
(void) exp_id;
(void) out_value;
switch( exp_id )
{
#if defined(MBEDTLS_ENTROPY_C)
case 0:
{
*out_value = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
}
break;
case 1:
{
*out_value = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
}
break;
case 2:
{
*out_value = MBEDTLS_ENTROPY_SOURCE_WEAK;
}
break;
case 3:
{
*out_value = MBEDTLS_ENTROPY_BLOCK_SIZE;
}
break;
case 4:
{
*out_value = MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE;
}
break;
case 5:
{
*out_value = MBEDTLS_ENTROPY_SOURCE_STRONG;
}
break;
case 6:
{
*out_value = (MBEDTLS_ENTROPY_BLOCK_SIZE+1)/2;
}
break;
case 7:
{
*out_value = MBEDTLS_ENTROPY_BLOCK_SIZE+1;
}
break;
#endif
default:
{
ret = KEY_VALUE_MAPPING_NOT_FOUND;
}
break;
}
return( ret );
}
/**
* \brief Checks if the dependency i.e. the compile flag is set.
* For optimizing space for embedded targets each dependency
* is identified by a unique identifier instead of string literals.
* Identifiers and check code is generated by script:
* generate_test_code.py and then mbedtls_test_suite.sh and then mbedtls_test_suite.sh
*
* \param dep_id Dependency identifier.
*
* \return DEPENDENCY_SUPPORTED if set else DEPENDENCY_NOT_SUPPORTED
*/
int dep_check( int dep_id )
{
int ret = DEPENDENCY_NOT_SUPPORTED;
(void) dep_id;
switch( dep_id )
{
#if defined(MBEDTLS_ENTROPY_C)
case 0:
{
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
ret = DEPENDENCY_SUPPORTED;
#else
ret = DEPENDENCY_NOT_SUPPORTED;
#endif
}
break;
case 1:
{
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
ret = DEPENDENCY_SUPPORTED;
#else
ret = DEPENDENCY_NOT_SUPPORTED;
#endif
}
break;
#endif
default:
break;
}
return( ret );
}
/**
* \brief Function pointer type for test function wrappers.
*
* A test function wrapper decodes the parameters and passes them to the
* underlying test function. Both the wrapper and the underlying function
* return void. Test wrappers assume that they are passed a suitable
* parameter array and do not perform any error detection.
*
* \param param_array The array of parameters. Each element is a `void *`
* which the wrapper casts to the correct type and
* dereferences. Each wrapper function hard-codes the
* number and types of the parameters.
*/
typedef void (*TestWrapper_t)( void **param_array );
/**
* \brief Table of test function wrappers. Used by dispatch_test().
* This table is populated by script:
* generate_test_code.py and then mbedtls_test_suite.sh and then mbedtls_test_suite.sh
*
*/
TestWrapper_t test_funcs[] =
{
/* Function Id: 0 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_init_free_wrapper,
#else
NULL,
#endif
/* Function Id: 1 */
#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_ENTROPY_NV_SEED) && defined(MBEDTLS_FS_IO)
test_entropy_seed_file_wrapper,
#else
NULL,
#endif
/* Function Id: 2 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_no_sources_wrapper,
#else
NULL,
#endif
/* Function Id: 3 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_too_many_sources_wrapper,
#else
NULL,
#endif
/* Function Id: 4 */
#if defined(MBEDTLS_ENTROPY_C) && defined(ENTROPY_HAVE_STRONG)
test_entropy_func_len_wrapper,
#else
NULL,
#endif
/* Function Id: 5 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_source_fail_wrapper,
#else
NULL,
#endif
/* Function Id: 6 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_threshold_wrapper,
#else
NULL,
#endif
/* Function Id: 7 */
#if defined(MBEDTLS_ENTROPY_C)
test_entropy_calls_wrapper,
#else
NULL,
#endif
/* Function Id: 8 */
#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_ENTROPY_NV_SEED) && defined(MBEDTLS_FS_IO)
test_nv_seed_file_create_wrapper,
#else
NULL,
#endif
/* Function Id: 9 */
#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_ENTROPY_NV_SEED) && defined(MBEDTLS_FS_IO) && defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
test_entropy_nv_seed_std_io_wrapper,
#else
NULL,
#endif
/* Function Id: 10 */
#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_MD_C) && defined(MBEDTLS_ENTROPY_NV_SEED) && defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
test_entropy_nv_seed_wrapper,
#else
NULL,
#endif
/* Function Id: 11 */
#if defined(MBEDTLS_ENTROPY_C) && defined(ENTROPY_HAVE_STRONG) && defined(MBEDTLS_SELF_TEST)
test_entropy_selftest_wrapper,
#else
NULL,
#endif
};
/**
* \brief Execute the test function.
*
* This is a wrapper function around the test function execution
* to allow the setjmp() call used to catch any calls to the
* parameter failure callback, to be used. Calls to setjmp()
* can invalidate the state of any local auto variables.
*
* \param fp Function pointer to the test function.
* \param params Parameters to pass to the #TestWrapper_t wrapper function.
*
*/
void execute_function_ptr(TestWrapper_t fp, void **params)
{
#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
mbedtls_test_enable_insecure_external_rng( );
#endif
#if defined(MBEDTLS_CHECK_PARAMS)
mbedtls_test_param_failed_location_record_t location_record;
if ( setjmp( mbedtls_test_param_failed_get_state_buf( ) ) == 0 )
{
fp( params );
}
else
{
/* Unexpected parameter validation error */
mbedtls_test_param_failed_get_location_record( &location_record );
mbedtls_test_fail( location_record.failure_condition,
location_record.line,
location_record.file );
}
mbedtls_test_param_failed_reset_state( );
#else
fp( params );
#endif
#if defined(MBEDTLS_TEST_MUTEX_USAGE)
mbedtls_test_mutex_usage_check( );
#endif /* MBEDTLS_TEST_MUTEX_USAGE */
}
/**
* \brief Dispatches test functions based on function index.
*
* \param func_idx Test function index.
* \param params The array of parameters to pass to the test function.
* It will be decoded by the #TestWrapper_t wrapper function.
*
* \return DISPATCH_TEST_SUCCESS if found
* DISPATCH_TEST_FN_NOT_FOUND if not found
* DISPATCH_UNSUPPORTED_SUITE if not compile time enabled.
*/
int dispatch_test( size_t func_idx, void ** params )
{
int ret = DISPATCH_TEST_SUCCESS;
TestWrapper_t fp = NULL;
if ( func_idx < (int)( sizeof( test_funcs ) / sizeof( TestWrapper_t ) ) )
{
fp = test_funcs[func_idx];
if ( fp )
execute_function_ptr(fp, params);
else
ret = DISPATCH_UNSUPPORTED_SUITE;
}
else
{
ret = DISPATCH_TEST_FN_NOT_FOUND;
}
return( ret );
}
/**
* \brief Checks if test function is supported in this build-time
* configuration.
*
* \param func_idx Test function index.
*
* \return DISPATCH_TEST_SUCCESS if found
* DISPATCH_TEST_FN_NOT_FOUND if not found
* DISPATCH_UNSUPPORTED_SUITE if not compile time enabled.
*/
int check_test( size_t func_idx )
{
int ret = DISPATCH_TEST_SUCCESS;
TestWrapper_t fp = NULL;
if ( func_idx < (int)( sizeof(test_funcs)/sizeof( TestWrapper_t ) ) )
{
fp = test_funcs[func_idx];
if ( fp == NULL )
ret = DISPATCH_UNSUPPORTED_SUITE;
}
else
{
ret = DISPATCH_TEST_FN_NOT_FOUND;
}
return( ret );
}
int main( int argc, const char *argv[] )
{
int ret;
mbedtls_test_platform_setup();
ret = execute_tests( argc, argv, "/zip/third_party/mbedtls/test/test_suite_entropy.datax" );
mbedtls_test_platform_teardown();
return( ret );
}
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