mbedtls/tests/suites/test_suite_ssl.function

/* BEGIN_HEADER */
#include <mbedtls/ssl.h>
#include <mbedtls/ssl_internal.h>

#if defined(MBEDTLS_X509_CRT_PARSE_C)
static int pre_vrfy_data = 0;
static void pre_vrfy_fn( void *data, struct mbedtls_x509_crt *crt )
{
    if( crt && crt->version == 3 )
        *(int*)data = 1;
}
static unsigned char pre_vrfy_buffer[2048];
static int pre_vrfy_buffer_start = 0, pre_vrfy_buffer_end = 0;
static int pre_vrfy_send( void *ctx, const unsigned char *buf, size_t len )
{
    (void)ctx;
    if ( len > sizeof( pre_vrfy_buffer ) - pre_vrfy_buffer_end )
        len = sizeof( pre_vrfy_buffer ) - pre_vrfy_buffer_end;
    memcpy( pre_vrfy_buffer + pre_vrfy_buffer_end, buf, len );
    pre_vrfy_buffer_end += (int)len;
    return( len ? (int)len : MBEDTLS_ERR_SSL_WANT_WRITE );
}
static int pre_vrfy_recv( void *ctx, unsigned char *buf, size_t len )
{
    (void)ctx;
    if ( len > (size_t)(pre_vrfy_buffer_end - pre_vrfy_buffer_start) )
        len = pre_vrfy_buffer_end - pre_vrfy_buffer_start;
    memcpy( buf, pre_vrfy_buffer + pre_vrfy_buffer_start, len );
    pre_vrfy_buffer_start += (int)len;
    return( len ? (int)len : MBEDTLS_ERR_SSL_WANT_READ );
}
#endif
/* 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_PREVERIFY_CB:MBEDTLS_FS_IO:MBEDTLS_KEY_EXCHANGE_RSA_ENABLED:MBEDTLS_AES_C:MBEDTLS_SHA256_C:MBEDTLS_CIPHER_MODE_CBC */
void ssl_preverifycb( char *crt_file )
{
    mbedtls_ssl_context ssl;
    mbedtls_ssl_config conf;
    mbedtls_x509_crt crt;

    mbedtls_ssl_init( &ssl );
    mbedtls_ssl_config_init( &conf );
    mbedtls_x509_crt_init( &crt );

    TEST_ASSERT( mbedtls_x509_crt_parse_file( &crt, crt_file ) == 0 );

    TEST_ASSERT( mbedtls_ssl_config_defaults( &conf,
                 MBEDTLS_SSL_IS_SERVER,
                 MBEDTLS_SSL_TRANSPORT_STREAM,
                 MBEDTLS_SSL_PRESET_DEFAULT ) == 0 );
    TEST_ASSERT( mbedtls_ssl_setup( &ssl, &conf ) == 0 );
    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_OPTIONAL );
    mbedtls_ssl_conf_ca_chain( &conf, &crt, NULL );

    /* Write out a certificate record to a buffer */
    ssl.transform_negotiate->ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 );
    mbedtls_ssl_set_bio( &ssl, NULL, pre_vrfy_send, pre_vrfy_recv, NULL );
    TEST_ASSERT( mbedtls_ssl_conf_own_cert( &conf, &crt, NULL ) == 0 );
    TEST_ASSERT( mbedtls_ssl_write_certificate( &ssl ) == 0 );

    /* Read in the certificate record, and check it calls the pre-verify callback */
    conf.endpoint = MBEDTLS_SSL_IS_CLIENT;
    mbedtls_ssl_conf_pre_verify( &conf, pre_vrfy_fn, (void*)&pre_vrfy_data );
    TEST_ASSERT( mbedtls_ssl_parse_certificate( &ssl ) == 0 );

    TEST_ASSERT( pre_vrfy_data != 0 );

    mbedtls_ssl_free( &ssl );
    mbedtls_ssl_config_free( &conf );
    mbedtls_x509_crt_free( &crt );
}
/* END_CASE */