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/* BEGIN_HEADER */
#include <mbedtls/ssl.h>
#include <mbedtls/ssl_internal.h>
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_SSL_TLS_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:MBEDTLS_SSL_DTLS_ANTI_REPLAY */
void ssl_dtls_replay( char *prevs, char *new, int ret )
{
mbedtls_ssl_context ssl;
mbedtls_ssl_config conf;
char *end_prevs = prevs + strlen( prevs ) + 1;
mbedtls_ssl_init( &ssl );
mbedtls_ssl_config_init( &conf );
TEST_ASSERT( mbedtls_ssl_config_defaults( &conf,
MBEDTLS_SSL_IS_CLIENT,
MBEDTLS_SSL_TRANSPORT_DATAGRAM,
MBEDTLS_SSL_PRESET_DEFAULT ) == 0 );
TEST_ASSERT( mbedtls_ssl_setup( &ssl, &conf ) == 0 );
/* Read previous record numbers */
for( ; end_prevs - prevs >= 13; prevs += 13 )
{
prevs[12] = '\0';
unhexify( ssl.in_ctr + 2, prevs );
mbedtls_ssl_dtls_replay_update( &ssl );
}
/* Check new number */
unhexify( ssl.in_ctr + 2, new );
TEST_ASSERT( mbedtls_ssl_dtls_replay_check( &ssl ) == ret );
mbedtls_ssl_free( &ssl );
mbedtls_ssl_config_free( &conf );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_PARSE_C */
void ssl_set_hostname_twice( char *hostname0, char *hostname1 )
{
mbedtls_ssl_context ssl;
mbedtls_ssl_init( &ssl );
TEST_ASSERT( mbedtls_ssl_set_hostname( &ssl, hostname0 ) == 0 );
TEST_ASSERT( mbedtls_ssl_set_hostname( &ssl, hostname1 ) == 0 );
mbedtls_ssl_free( &ssl );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
void ssl_cf_hmac( int hash )
{
/*
* Test the function mbedtls_ssl_cf_hmac() against a reference
* implementation.
*/
mbedtls_md_context_t ctx, ref_ctx;
const mbedtls_md_info_t *md_info;
size_t out_len, block_size;
size_t min_in_len, in_len, max_in_len, i;
/* TLS additional data is 13 bytes (hence the "lucky 13" name) */
unsigned char add_data[13];
unsigned char ref_out[MBEDTLS_MD_MAX_SIZE];
unsigned char *data = NULL;
unsigned char *out = NULL;
unsigned char rec_num = 0;
mbedtls_md_init( &ctx );
mbedtls_md_init( &ref_ctx );
md_info = mbedtls_md_info_from_type( hash );
TEST_ASSERT( md_info != NULL );
out_len = mbedtls_md_get_size( md_info );
TEST_ASSERT( out_len != 0 );
block_size = hash == MBEDTLS_MD_SHA384 ? 128 : 64;
/* Use allocated out buffer to catch overwrites */
out = mbedtls_calloc( 1, out_len );
TEST_ASSERT( out != NULL );
/* Set up contexts with the given hash and a dummy key */
TEST_ASSERT( 0 == mbedtls_md_setup( &ctx, md_info, 1 ) );
TEST_ASSERT( 0 == mbedtls_md_setup( &ref_ctx, md_info, 1 ) );
memset( ref_out, 42, sizeof( ref_out ) );
TEST_ASSERT( 0 == mbedtls_md_hmac_starts( &ctx, ref_out, out_len ) );
TEST_ASSERT( 0 == mbedtls_md_hmac_starts( &ref_ctx, ref_out, out_len ) );
memset( ref_out, 0, sizeof( ref_out ) );
/*
* Test all possible lengths up to a point. The difference between
* max_in_len and min_in_len is at most 255, and make sure they both vary
* by at least one block size.
*/
for( max_in_len = 0; max_in_len <= 255 + block_size; max_in_len++ )
{
/* Use allocated in buffer to catch overreads */
data = mbedtls_calloc( 1, max_in_len );
TEST_ASSERT( data != NULL || max_in_len == 0 );
min_in_len = max_in_len > 255 ? max_in_len - 255 : 0;
for( in_len = min_in_len; in_len <= max_in_len; in_len++ )
{
/* Set up dummy data and add_data */
rec_num++;
memset( add_data, rec_num, sizeof( add_data ) );
for( i = 0; i < in_len; i++ )
data[i] = ( i & 0xff ) ^ rec_num;
/* Get the function's result */
TEST_CF_SECRET( &in_len, sizeof( in_len ) );
TEST_ASSERT( 0 == mbedtls_ssl_cf_hmac( &ctx, add_data, sizeof( add_data ),
data, in_len,
min_in_len, max_in_len,
out ) );
TEST_CF_PUBLIC( &in_len, sizeof( in_len ) );
TEST_CF_PUBLIC( out, out_len );
/* Compute the reference result */
TEST_ASSERT( 0 == mbedtls_md_hmac_update( &ref_ctx, add_data,
sizeof( add_data ) ) );
TEST_ASSERT( 0 == mbedtls_md_hmac_update( &ref_ctx, data, in_len ) );
TEST_ASSERT( 0 == mbedtls_md_hmac_finish( &ref_ctx, ref_out ) );
TEST_ASSERT( 0 == mbedtls_md_hmac_reset( &ref_ctx ) );
/* Compare */
TEST_ASSERT( 0 == memcmp( out, ref_out, out_len ) );
}
mbedtls_free( data );
data = NULL;
}
exit:
mbedtls_md_free( &ref_ctx );
mbedtls_md_free( &ctx );
mbedtls_free( data );
mbedtls_free( out );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
void ssl_cf_memcpy_offset( int offset_min, int offset_max, int len )
{
unsigned char *dst = NULL;
unsigned char *src = NULL;
size_t src_len = offset_max + len;
size_t secret;
dst = mbedtls_calloc( 1, len );
TEST_ASSERT( dst != NULL );
src = mbedtls_calloc( 1, src_len );
TEST_ASSERT( src != NULL );
/* Fill src in a way that we can detect if we copied the right bytes */
rnd_std_rand( NULL, src, src_len );
for( secret = offset_min; secret <= (size_t) offset_max; secret++ )
{
TEST_CF_SECRET( &secret, sizeof( secret ) );
mbedtls_ssl_cf_memcpy_offset( dst, src, secret,
offset_min, offset_max, len );
TEST_CF_PUBLIC( &secret, sizeof( secret ) );
TEST_CF_PUBLIC( dst, len );
TEST_ASSERT( memcmp( dst, src + secret, len ) == 0 );
}
exit:
mbedtls_free( dst );
mbedtls_free( src );
}
/* END_CASE */
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