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https://github.com/yuzu-emu/mbedtls.git
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ef94c4fcf4
Common mbedtls_param_failed()
247 lines
5.8 KiB
C
247 lines
5.8 KiB
C
/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <test/helpers.h>
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#include <test/macros.h>
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#include <string.h>
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#if defined(MBEDTLS_CHECK_PARAMS)
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#include <setjmp.h>
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#endif
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/*----------------------------------------------------------------------------*/
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/* Static global variables */
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#if defined(MBEDTLS_CHECK_PARAMS)
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typedef struct
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{
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uint8_t expected_call;
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uint8_t expected_call_happened;
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jmp_buf state;
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mbedtls_test_param_failed_location_record_t location_record;
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}
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param_failed_ctx_t;
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static param_failed_ctx_t param_failed_ctx;
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#endif
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#if defined(MBEDTLS_PLATFORM_C)
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static mbedtls_platform_context platform_ctx;
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#endif
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/*----------------------------------------------------------------------------*/
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/* Helper Functions */
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int mbedtls_test_platform_setup( void )
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{
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int ret = 0;
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#if defined(MBEDTLS_PLATFORM_C)
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ret = mbedtls_platform_setup( &platform_ctx );
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#endif /* MBEDTLS_PLATFORM_C */
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return( ret );
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}
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void mbedtls_test_platform_teardown( void )
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{
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#if defined(MBEDTLS_PLATFORM_C)
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mbedtls_platform_teardown( &platform_ctx );
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#endif /* MBEDTLS_PLATFORM_C */
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}
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static int ascii2uc(const char c, unsigned char *uc)
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{
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if( ( c >= '0' ) && ( c <= '9' ) )
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*uc = c - '0';
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else if( ( c >= 'a' ) && ( c <= 'f' ) )
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*uc = c - 'a' + 10;
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else if( ( c >= 'A' ) && ( c <= 'F' ) )
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*uc = c - 'A' + 10;
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else
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return( -1 );
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return( 0 );
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}
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int mbedtls_test_unhexify( unsigned char *obuf,
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size_t obufmax,
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const char *ibuf,
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size_t *len )
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{
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unsigned char uc, uc2;
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*len = strlen( ibuf );
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/* Must be even number of bytes. */
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if ( ( *len ) & 1 )
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return( -1 );
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*len /= 2;
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if ( (*len) > obufmax )
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return( -1 );
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while( *ibuf != 0 )
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{
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if ( ascii2uc( *(ibuf++), &uc ) != 0 )
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return( -1 );
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if ( ascii2uc( *(ibuf++), &uc2 ) != 0 )
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return( -1 );
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*(obuf++) = ( uc << 4 ) | uc2;
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}
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return( 0 );
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}
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void mbedtls_test_hexify( unsigned char *obuf,
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const unsigned char *ibuf,
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int len )
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{
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unsigned char l, h;
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while( len != 0 )
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{
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h = *ibuf / 16;
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l = *ibuf % 16;
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if( h < 10 )
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*obuf++ = '0' + h;
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else
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*obuf++ = 'a' + h - 10;
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if( l < 10 )
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*obuf++ = '0' + l;
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else
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*obuf++ = 'a' + l - 10;
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++ibuf;
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len--;
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}
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}
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unsigned char *mbedtls_test_zero_alloc( size_t len )
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{
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void *p;
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size_t actual_len = ( len != 0 ) ? len : 1;
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p = mbedtls_calloc( 1, actual_len );
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TEST_HELPER_ASSERT( p != NULL );
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memset( p, 0x00, actual_len );
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return( p );
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}
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unsigned char *mbedtls_test_unhexify_alloc( const char *ibuf, size_t *olen )
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{
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unsigned char *obuf;
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size_t len;
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*olen = strlen( ibuf ) / 2;
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if( *olen == 0 )
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return( mbedtls_test_zero_alloc( *olen ) );
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obuf = mbedtls_calloc( 1, *olen );
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TEST_HELPER_ASSERT( obuf != NULL );
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TEST_HELPER_ASSERT( mbedtls_test_unhexify( obuf, *olen, ibuf, &len ) == 0 );
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return( obuf );
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}
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int mbedtls_test_hexcmp( uint8_t * a, uint8_t * b,
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uint32_t a_len, uint32_t b_len )
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{
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int ret = 0;
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uint32_t i = 0;
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if( a_len != b_len )
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return( -1 );
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for( i = 0; i < a_len; i++ )
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{
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if( a[i] != b[i] )
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{
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ret = -1;
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break;
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}
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}
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return ret;
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}
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#if defined(MBEDTLS_CHECK_PARAMS)
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void mbedtls_test_param_failed_get_location_record(
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mbedtls_test_param_failed_location_record_t *location_record )
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{
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*location_record = param_failed_ctx.location_record;
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}
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void mbedtls_test_param_failed_expect_call( void )
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{
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param_failed_ctx.expected_call_happened = 0;
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param_failed_ctx.expected_call = 1;
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}
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int mbedtls_test_param_failed_check_expected_call( void )
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{
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param_failed_ctx.expected_call = 0;
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if( param_failed_ctx.expected_call_happened != 0 )
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return( 0 );
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return( -1 );
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}
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void* mbedtls_test_param_failed_get_state_buf( void )
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{
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return ¶m_failed_ctx.state;
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}
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void mbedtls_test_param_failed_reset_state( void )
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{
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memset( param_failed_ctx.state, 0, sizeof( param_failed_ctx.state ) );
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}
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void mbedtls_param_failed( const char *failure_condition,
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const char *file,
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int line )
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{
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/* Record the location of the failure */
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param_failed_ctx.location_record.failure_condition = failure_condition;
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param_failed_ctx.location_record.file = file;
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param_failed_ctx.location_record.line = line;
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/* If we are testing the callback function... */
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if( param_failed_ctx.expected_call != 0 )
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{
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param_failed_ctx.expected_call = 0;
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param_failed_ctx.expected_call_happened = 1;
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}
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else
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{
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/* ...else try a long jump. If the execution state has not been set-up
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* or reset then the long jump buffer is all zero's and the call will
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* with high probability fault, emphasizing there is something to look
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* at.
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*/
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longjmp( param_failed_ctx.state, 1 );
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}
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}
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#endif /* MBEDTLS_CHECK_PARAMS */
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