diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index e39f79c..c9d9a20 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -521,398 +521,6 @@
     const char *mki;            /* The dtls mki value to use                */
 } opt;
 
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-int eap_tls_key_derivation( void *p_expkey,
-                            const unsigned char *ms,
-                            const unsigned char *kb,
-                            size_t maclen,
-                            size_t keylen,
-                            size_t ivlen,
-                            const unsigned char client_random[32],
-                            const unsigned char server_random[32],
-                            mbedtls_tls_prf_types tls_prf_type )
-{
-    eap_tls_keys *keys = (eap_tls_keys *)p_expkey;
-
-    ( ( void ) kb );
-    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
-    memcpy( keys->randbytes, client_random, 32 );
-    memcpy( keys->randbytes + 32, server_random, 32 );
-    keys->tls_prf_type = tls_prf_type;
-
-    if( opt.debug_level > 2 )
-    {
-        mbedtls_printf("exported maclen is %u\n", (unsigned)maclen);
-        mbedtls_printf("exported keylen is %u\n", (unsigned)keylen);
-        mbedtls_printf("exported ivlen is %u\n", (unsigned)ivlen);
-    }
-    return( 0 );
-}
-
-int nss_keylog_export( void *p_expkey,
-                       const unsigned char *ms,
-                       const unsigned char *kb,
-                       size_t maclen,
-                       size_t keylen,
-                       size_t ivlen,
-                       const unsigned char client_random[32],
-                       const unsigned char server_random[32],
-                       mbedtls_tls_prf_types tls_prf_type )
-{
-    char nss_keylog_line[ 200 ];
-    size_t const client_random_len = 32;
-    size_t const master_secret_len = 48;
-    size_t len = 0;
-    size_t j;
-    int ret = 0;
-
-    ((void) p_expkey);
-    ((void) kb);
-    ((void) maclen);
-    ((void) keylen);
-    ((void) ivlen);
-    ((void) server_random);
-    ((void) tls_prf_type);
-
-    len += sprintf( nss_keylog_line + len,
-                    "%s", "CLIENT_RANDOM " );
-
-    for( j = 0; j < client_random_len; j++ )
-    {
-        len += sprintf( nss_keylog_line + len,
-                        "%02x", client_random[j] );
-    }
-
-    len += sprintf( nss_keylog_line + len, " " );
-
-    for( j = 0; j < master_secret_len; j++ )
-    {
-        len += sprintf( nss_keylog_line + len,
-                        "%02x", ms[j] );
-    }
-
-    len += sprintf( nss_keylog_line + len, "\n" );
-    nss_keylog_line[ len ] = '\0';
-
-    mbedtls_printf( "\n" );
-    mbedtls_printf( "---------------- NSS KEYLOG -----------------\n" );
-    mbedtls_printf( "%s", nss_keylog_line );
-    mbedtls_printf( "---------------------------------------------\n" );
-
-    if( opt.nss_keylog_file != NULL )
-    {
-        FILE *f;
-
-        if( ( f = fopen( opt.nss_keylog_file, "a" ) ) == NULL )
-        {
-            ret = -1;
-            goto exit;
-        }
-
-        if( fwrite( nss_keylog_line, 1, len, f ) != len )
-        {
-            ret = -1;
-            fclose( f );
-            goto exit;
-        }
-
-        fclose( f );
-    }
-
-exit:
-    mbedtls_platform_zeroize( nss_keylog_line,
-                              sizeof( nss_keylog_line ) );
-    return( ret );
-}
-
-#if defined( MBEDTLS_SSL_DTLS_SRTP )
-int dtls_srtp_key_derivation( void *p_expkey,
-                              const unsigned char *ms,
-                              const unsigned char *kb,
-                              size_t maclen,
-                              size_t keylen,
-                              size_t ivlen,
-                              const unsigned char client_random[32],
-                              const unsigned char server_random[32],
-                              mbedtls_tls_prf_types tls_prf_type )
-{
-    dtls_srtp_keys *keys = (dtls_srtp_keys *)p_expkey;
-
-    ( ( void ) kb );
-    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
-    memcpy( keys->randbytes, client_random, 32 );
-    memcpy( keys->randbytes + 32, server_random, 32 );
-    keys->tls_prf_type = tls_prf_type;
-
-    if( opt.debug_level > 2 )
-    {
-        mbedtls_printf( "exported maclen is %u\n", (unsigned) maclen );
-        mbedtls_printf( "exported keylen is %u\n", (unsigned) keylen );
-        mbedtls_printf( "exported ivlen is %u\n", (unsigned) ivlen );
-    }
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_DTLS_SRTP */
-
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-
-void my_debug( void *ctx, int level,
-               const char *file, int line,
-               const char *str )
-{
-    const char *p, *basename;
-
-    /* Extract basename from file */
-    for( p = basename = file; *p != '\0'; p++ )
-        if( *p == '/' || *p == '\\' )
-            basename = p + 1;
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s",
-                     basename, line, level, str );
-    fflush( (FILE *) ctx  );
-}
-
-mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
-{
-    (void) time;
-    return 0x5af2a056;
-}
-
-int dummy_entropy( void *data, unsigned char *output, size_t len )
-{
-    size_t i;
-    int ret;
-    (void) data;
-
-    ret = mbedtls_entropy_func( data, output, len );
-    for( i = 0; i < len; i++ )
-    {
-        //replace result with pseudo random
-        output[i] = (unsigned char) rand();
-    }
-    return( ret );
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-int ca_callback( void *data, mbedtls_x509_crt const *child,
-                 mbedtls_x509_crt **candidates )
-{
-    int ret = 0;
-    mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
-    mbedtls_x509_crt *first;
-
-    /* This is a test-only implementation of the CA callback
-     * which always returns the entire list of trusted certificates.
-     * Production implementations managing a large number of CAs
-     * should use an efficient presentation and lookup for the
-     * set of trusted certificates (such as a hashtable) and only
-     * return those trusted certificates which satisfy basic
-     * parental checks, such as the matching of child `Issuer`
-     * and parent `Subject` field or matching key identifiers. */
-    ((void) child);
-
-    first = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( first == NULL )
-    {
-        ret = -1;
-        goto exit;
-    }
-    mbedtls_x509_crt_init( first );
-
-    if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-    {
-        ret = -1;
-        goto exit;
-    }
-
-    while( ca->next != NULL )
-    {
-        ca = ca->next;
-        if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-        {
-            ret = -1;
-            goto exit;
-        }
-    }
-
-exit:
-
-    if( ret != 0 )
-    {
-        mbedtls_x509_crt_free( first );
-        mbedtls_free( first );
-        first = NULL;
-    }
-
-    *candidates = first;
-    return( ret );
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-/*
- * Test recv/send functions that make sure each try returns
- * WANT_READ/WANT_WRITE at least once before sucesseding
- */
-int delayed_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_READ );
-    }
-
-    ret = mbedtls_net_recv( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_READ )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-int delayed_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_WRITE );
-    }
-
-    ret = mbedtls_net_send( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-int ssl_check_record( mbedtls_ssl_context const *ssl,
-                      unsigned char const *buf, size_t len )
-{
-    int ret;
-    unsigned char *tmp_buf;
-
-    /* Record checking may modify the input buffer,
-     * so make a copy. */
-    tmp_buf = mbedtls_calloc( 1, len );
-    if( tmp_buf == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    memcpy( tmp_buf, buf, len );
-
-    ret = mbedtls_ssl_check_record( ssl, tmp_buf, len );
-    if( ret != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
-    {
-        int ret_repeated;
-
-        /* Test-only: Make sure that mbedtls_ssl_check_record()
-         *            doesn't alter state. */
-        memcpy( tmp_buf, buf, len ); /* Restore buffer */
-        ret_repeated = mbedtls_ssl_check_record( ssl, tmp_buf, len );
-        if( ret != ret_repeated )
-        {
-            mbedtls_printf( "mbedtls_ssl_check_record() returned inconsistent results.\n" );
-            return( -1 );
-        }
-
-        switch( ret )
-        {
-            case 0:
-                break;
-
-            case MBEDTLS_ERR_SSL_INVALID_RECORD:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected invalid record.\n" );
-                break;
-
-            case MBEDTLS_ERR_SSL_INVALID_MAC:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected unauthentic record.\n" );
-                break;
-
-            case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected unexpected record.\n" );
-                break;
-
-            default:
-                mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret );
-                return( -1 );
-        }
-
-        /* Regardless of the outcome, forward the record to the stack. */
-    }
-
-    mbedtls_free( tmp_buf );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-
-int recv_cb( void *ctx, unsigned char *buf, size_t len )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-    size_t recv_len;
-    int ret;
-
-    if( opt.nbio == 2 )
-        ret = delayed_recv( io_ctx->net, buf, len );
-    else
-        ret = mbedtls_net_recv( io_ctx->net, buf, len );
-    if( ret < 0 )
-        return( ret );
-    recv_len = (size_t) ret;
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        /* Here's the place to do any datagram/record checking
-         * in between receiving the packet from the underlying
-         * transport and passing it on to the TLS stack. */
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
-            return( -1 );
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-    }
-
-    return( (int) recv_len );
-}
-
-int recv_timeout_cb( void *ctx, unsigned char *buf, size_t len,
-                     uint32_t timeout )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-    int ret;
-    size_t recv_len;
-
-    ret = mbedtls_net_recv_timeout( io_ctx->net, buf, len, timeout );
-    if( ret < 0 )
-        return( ret );
-    recv_len = (size_t) ret;
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        /* Here's the place to do any datagram/record checking
-         * in between receiving the packet from the underlying
-         * transport and passing it on to the TLS stack. */
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
-            return( -1 );
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-    }
-
-    return( (int) recv_len );
-}
-
-int send_cb( void *ctx, unsigned char const *buf, size_t len )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-
-    if( opt.nbio == 2 )
-        return( delayed_send( io_ctx->net, buf, len ) );
-
-    return( mbedtls_net_send( io_ctx->net, buf, len ) );
-}
 #include "ssl_test_common_source.c"
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
@@ -949,74 +557,6 @@
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-int ssl_sig_hashes_for_test[] = {
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-    MBEDTLS_MD_SHA384,
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA224,
-#endif
-#if defined(MBEDTLS_SHA1_C)
-    /* Allow SHA-1 as we use it extensively in tests. */
-    MBEDTLS_MD_SHA1,
-#endif
-    MBEDTLS_MD_NONE
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/*
- * Wait for an event from the underlying transport or the timer
- * (Used in event-driven IO mode).
- */
-#if !defined(MBEDTLS_TIMING_C)
-int idle( mbedtls_net_context *fd,
-          int idle_reason )
-#else
-int idle( mbedtls_net_context *fd,
-          mbedtls_timing_delay_context *timer,
-          int idle_reason )
-#endif
-{
-    int ret;
-    int poll_type = 0;
-
-    if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
-        poll_type = MBEDTLS_NET_POLL_WRITE;
-    else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
-        poll_type = MBEDTLS_NET_POLL_READ;
-#if !defined(MBEDTLS_TIMING_C)
-    else
-        return( 0 );
-#endif
-
-    while( 1 )
-    {
-        /* Check if timer has expired */
-#if defined(MBEDTLS_TIMING_C)
-        if( timer != NULL &&
-            mbedtls_timing_get_delay( timer ) == 2 )
-        {
-            break;
-        }
-#endif /* MBEDTLS_TIMING_C */
-
-        /* Check if underlying transport became available */
-        if( poll_type != 0 )
-        {
-            ret = mbedtls_net_poll( fd, poll_type, 0 );
-            if( ret < 0 )
-                return( ret );
-            if( ret == poll_type )
-                break;
-        }
-    }
-
-    return( 0 );
-}
-
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
 int report_cid_usage( mbedtls_ssl_context *ssl,
                       const char *additional_description )
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 12c5c50..e65851f 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -624,398 +624,6 @@
     int support_mki;            /* The dtls mki mki support                 */
 } opt;
 
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-int eap_tls_key_derivation( void *p_expkey,
-                            const unsigned char *ms,
-                            const unsigned char *kb,
-                            size_t maclen,
-                            size_t keylen,
-                            size_t ivlen,
-                            const unsigned char client_random[32],
-                            const unsigned char server_random[32],
-                            mbedtls_tls_prf_types tls_prf_type )
-{
-    eap_tls_keys *keys = (eap_tls_keys *)p_expkey;
-
-    ( ( void ) kb );
-    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
-    memcpy( keys->randbytes, client_random, 32 );
-    memcpy( keys->randbytes + 32, server_random, 32 );
-    keys->tls_prf_type = tls_prf_type;
-
-    if( opt.debug_level > 2 )
-    {
-        mbedtls_printf("exported maclen is %u\n", (unsigned)maclen);
-        mbedtls_printf("exported keylen is %u\n", (unsigned)keylen);
-        mbedtls_printf("exported ivlen is %u\n", (unsigned)ivlen);
-    }
-    return( 0 );
-}
-
-int nss_keylog_export( void *p_expkey,
-                       const unsigned char *ms,
-                       const unsigned char *kb,
-                       size_t maclen,
-                       size_t keylen,
-                       size_t ivlen,
-                       const unsigned char client_random[32],
-                       const unsigned char server_random[32],
-                       mbedtls_tls_prf_types tls_prf_type )
-{
-    char nss_keylog_line[ 200 ];
-    size_t const client_random_len = 32;
-    size_t const master_secret_len = 48;
-    size_t len = 0;
-    size_t j;
-    int ret = 0;
-
-    ((void) p_expkey);
-    ((void) kb);
-    ((void) maclen);
-    ((void) keylen);
-    ((void) ivlen);
-    ((void) server_random);
-    ((void) tls_prf_type);
-
-    len += sprintf( nss_keylog_line + len,
-                    "%s", "CLIENT_RANDOM " );
-
-    for( j = 0; j < client_random_len; j++ )
-    {
-        len += sprintf( nss_keylog_line + len,
-                        "%02x", client_random[j] );
-    }
-
-    len += sprintf( nss_keylog_line + len, " " );
-
-    for( j = 0; j < master_secret_len; j++ )
-    {
-        len += sprintf( nss_keylog_line + len,
-                        "%02x", ms[j] );
-    }
-
-    len += sprintf( nss_keylog_line + len, "\n" );
-    nss_keylog_line[ len ] = '\0';
-
-    mbedtls_printf( "\n" );
-    mbedtls_printf( "---------------- NSS KEYLOG -----------------\n" );
-    mbedtls_printf( "%s", nss_keylog_line );
-    mbedtls_printf( "---------------------------------------------\n" );
-
-    if( opt.nss_keylog_file != NULL )
-    {
-        FILE *f;
-
-        if( ( f = fopen( opt.nss_keylog_file, "a" ) ) == NULL )
-        {
-            ret = -1;
-            goto exit;
-        }
-
-        if( fwrite( nss_keylog_line, 1, len, f ) != len )
-        {
-            ret = -1;
-            fclose( f );
-            goto exit;
-        }
-
-        fclose( f );
-    }
-
-exit:
-    mbedtls_platform_zeroize( nss_keylog_line,
-                              sizeof( nss_keylog_line ) );
-    return( ret );
-}
-
-#if defined( MBEDTLS_SSL_DTLS_SRTP )
-int dtls_srtp_key_derivation( void *p_expkey,
-                              const unsigned char *ms,
-                              const unsigned char *kb,
-                              size_t maclen,
-                              size_t keylen,
-                              size_t ivlen,
-                              const unsigned char client_random[32],
-                              const unsigned char server_random[32],
-                              mbedtls_tls_prf_types tls_prf_type )
-{
-    dtls_srtp_keys *keys = (dtls_srtp_keys *)p_expkey;
-
-    ( ( void ) kb );
-    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
-    memcpy( keys->randbytes, client_random, 32 );
-    memcpy( keys->randbytes + 32, server_random, 32 );
-    keys->tls_prf_type = tls_prf_type;
-
-    if( opt.debug_level > 2 )
-    {
-        mbedtls_printf( "exported maclen is %u\n", (unsigned) maclen );
-        mbedtls_printf( "exported keylen is %u\n", (unsigned) keylen );
-        mbedtls_printf( "exported ivlen is %u\n", (unsigned) ivlen );
-    }
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_DTLS_SRTP */
-
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-
-void my_debug( void *ctx, int level,
-               const char *file, int line,
-               const char *str )
-{
-    const char *p, *basename;
-
-    /* Extract basename from file */
-    for( p = basename = file; *p != '\0'; p++ )
-        if( *p == '/' || *p == '\\' )
-            basename = p + 1;
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s",
-                     basename, line, level, str );
-    fflush( (FILE *) ctx  );
-}
-
-mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
-{
-    (void) time;
-    return 0x5af2a056;
-}
-
-int dummy_entropy( void *data, unsigned char *output, size_t len )
-{
-    size_t i;
-    int ret;
-    (void) data;
-
-    ret = mbedtls_entropy_func( data, output, len );
-    for( i = 0; i < len; i++ )
-    {
-        //replace result with pseudo random
-        output[i] = (unsigned char) rand();
-    }
-    return( ret );
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-int ca_callback( void *data, mbedtls_x509_crt const *child,
-                 mbedtls_x509_crt **candidates )
-{
-    int ret = 0;
-    mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
-    mbedtls_x509_crt *first;
-
-    /* This is a test-only implementation of the CA callback
-     * which always returns the entire list of trusted certificates.
-     * Production implementations managing a large number of CAs
-     * should use an efficient presentation and lookup for the
-     * set of trusted certificates (such as a hashtable) and only
-     * return those trusted certificates which satisfy basic
-     * parental checks, such as the matching of child `Issuer`
-     * and parent `Subject` field or matching key identifiers. */
-    ((void) child);
-
-    first = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( first == NULL )
-    {
-        ret = -1;
-        goto exit;
-    }
-    mbedtls_x509_crt_init( first );
-
-    if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-    {
-        ret = -1;
-        goto exit;
-    }
-
-    while( ca->next != NULL )
-    {
-        ca = ca->next;
-        if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-        {
-            ret = -1;
-            goto exit;
-        }
-    }
-
-exit:
-
-    if( ret != 0 )
-    {
-        mbedtls_x509_crt_free( first );
-        mbedtls_free( first );
-        first = NULL;
-    }
-
-    *candidates = first;
-    return( ret );
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-/*
- * Test recv/send functions that make sure each try returns
- * WANT_READ/WANT_WRITE at least once before sucesseding
- */
-int delayed_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_READ );
-    }
-
-    ret = mbedtls_net_recv( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_READ )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-int delayed_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_WRITE );
-    }
-
-    ret = mbedtls_net_send( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-int ssl_check_record( mbedtls_ssl_context const *ssl,
-                      unsigned char const *buf, size_t len )
-{
-    int ret;
-    unsigned char *tmp_buf;
-
-    /* Record checking may modify the input buffer,
-     * so make a copy. */
-    tmp_buf = mbedtls_calloc( 1, len );
-    if( tmp_buf == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    memcpy( tmp_buf, buf, len );
-
-    ret = mbedtls_ssl_check_record( ssl, tmp_buf, len );
-    if( ret != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
-    {
-        int ret_repeated;
-
-        /* Test-only: Make sure that mbedtls_ssl_check_record()
-         *            doesn't alter state. */
-        memcpy( tmp_buf, buf, len ); /* Restore buffer */
-        ret_repeated = mbedtls_ssl_check_record( ssl, tmp_buf, len );
-        if( ret != ret_repeated )
-        {
-            mbedtls_printf( "mbedtls_ssl_check_record() returned inconsistent results.\n" );
-            return( -1 );
-        }
-
-        switch( ret )
-        {
-            case 0:
-                break;
-
-            case MBEDTLS_ERR_SSL_INVALID_RECORD:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected invalid record.\n" );
-                break;
-
-            case MBEDTLS_ERR_SSL_INVALID_MAC:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected unauthentic record.\n" );
-                break;
-
-            case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
-                if( opt.debug_level > 1 )
-                    mbedtls_printf( "mbedtls_ssl_check_record() detected unexpected record.\n" );
-                break;
-
-            default:
-                mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret );
-                return( -1 );
-        }
-
-        /* Regardless of the outcome, forward the record to the stack. */
-    }
-
-    mbedtls_free( tmp_buf );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-
-int recv_cb( void *ctx, unsigned char *buf, size_t len )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-    size_t recv_len;
-    int ret;
-
-    if( opt.nbio == 2 )
-        ret = delayed_recv( io_ctx->net, buf, len );
-    else
-        ret = mbedtls_net_recv( io_ctx->net, buf, len );
-    if( ret < 0 )
-        return( ret );
-    recv_len = (size_t) ret;
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        /* Here's the place to do any datagram/record checking
-         * in between receiving the packet from the underlying
-         * transport and passing it on to the TLS stack. */
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
-            return( -1 );
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-    }
-
-    return( (int) recv_len );
-}
-
-int recv_timeout_cb( void *ctx, unsigned char *buf, size_t len,
-                     uint32_t timeout )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-    int ret;
-    size_t recv_len;
-
-    ret = mbedtls_net_recv_timeout( io_ctx->net, buf, len, timeout );
-    if( ret < 0 )
-        return( ret );
-    recv_len = (size_t) ret;
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        /* Here's the place to do any datagram/record checking
-         * in between receiving the packet from the underlying
-         * transport and passing it on to the TLS stack. */
-#if defined(MBEDTLS_SSL_RECORD_CHECKING)
-        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
-            return( -1 );
-#endif /* MBEDTLS_SSL_RECORD_CHECKING */
-    }
-
-    return( (int) recv_len );
-}
-
-int send_cb( void *ctx, unsigned char const *buf, size_t len )
-{
-    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
-
-    if( opt.nbio == 2 )
-        return( delayed_send( io_ctx->net, buf, len ) );
-
-    return( mbedtls_net_send( io_ctx->net, buf, len ) );
-}
 #include "ssl_test_common_source.c"
 
 /*
@@ -1335,24 +943,6 @@
 }
 #endif
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-int ssl_sig_hashes_for_test[] = {
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-    MBEDTLS_MD_SHA384,
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA224,
-#endif
-#if defined(MBEDTLS_SHA1_C)
-    /* Allow SHA-1 as we use it extensively in tests. */
-    MBEDTLS_MD_SHA1,
-#endif
-    MBEDTLS_MD_NONE
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
 /** Return true if \p ret is a status code indicating that there is an
  * operation in progress on an SSL connection, and false if it indicates
  * success or a fatal error.
@@ -1591,56 +1181,6 @@
 }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
-/*
- * Wait for an event from the underlying transport or the timer
- * (Used in event-driven IO mode).
- */
-#if !defined(MBEDTLS_TIMING_C)
-int idle( mbedtls_net_context *fd,
-          int idle_reason )
-#else
-int idle( mbedtls_net_context *fd,
-          mbedtls_timing_delay_context *timer,
-          int idle_reason )
-#endif
-{
-    int ret;
-    int poll_type = 0;
-
-    if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
-        poll_type = MBEDTLS_NET_POLL_WRITE;
-    else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
-        poll_type = MBEDTLS_NET_POLL_READ;
-#if !defined(MBEDTLS_TIMING_C)
-    else
-        return( 0 );
-#endif
-
-    while( 1 )
-    {
-        /* Check if timer has expired */
-#if defined(MBEDTLS_TIMING_C)
-        if( timer != NULL &&
-            mbedtls_timing_get_delay( timer ) == 2 )
-        {
-            break;
-        }
-#endif /* MBEDTLS_TIMING_C */
-
-        /* Check if underlying transport became available */
-        if( poll_type != 0 )
-        {
-            ret = mbedtls_net_poll( fd, poll_type, 0 );
-            if( ret < 0 )
-                return( ret );
-            if( ret == poll_type )
-                break;
-        }
-    }
-
-    return( 0 );
-}
-
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 static psa_status_t psa_setup_psk_key_slot( psa_key_id_t *slot,
                                             psa_algorithm_t alg,
diff --git a/programs/ssl/ssl_test_common_source.c b/programs/ssl/ssl_test_common_source.c
index 78b9331..d9e3607 100644
--- a/programs/ssl/ssl_test_common_source.c
+++ b/programs/ssl/ssl_test_common_source.c
@@ -23,3 +23,283 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
+
+#if defined(MBEDTLS_SSL_EXPORT_KEYS)
+int eap_tls_key_derivation( void *p_expkey,
+                            const unsigned char *ms,
+                            const unsigned char *kb,
+                            size_t maclen,
+                            size_t keylen,
+                            size_t ivlen,
+                            const unsigned char client_random[32],
+                            const unsigned char server_random[32],
+                            mbedtls_tls_prf_types tls_prf_type )
+{
+    eap_tls_keys *keys = (eap_tls_keys *)p_expkey;
+
+    ( ( void ) kb );
+    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
+    memcpy( keys->randbytes, client_random, 32 );
+    memcpy( keys->randbytes + 32, server_random, 32 );
+    keys->tls_prf_type = tls_prf_type;
+
+    if( opt.debug_level > 2 )
+    {
+        mbedtls_printf("exported maclen is %u\n", (unsigned)maclen);
+        mbedtls_printf("exported keylen is %u\n", (unsigned)keylen);
+        mbedtls_printf("exported ivlen is %u\n", (unsigned)ivlen);
+    }
+    return( 0 );
+}
+
+int nss_keylog_export( void *p_expkey,
+                       const unsigned char *ms,
+                       const unsigned char *kb,
+                       size_t maclen,
+                       size_t keylen,
+                       size_t ivlen,
+                       const unsigned char client_random[32],
+                       const unsigned char server_random[32],
+                       mbedtls_tls_prf_types tls_prf_type )
+{
+    char nss_keylog_line[ 200 ];
+    size_t const client_random_len = 32;
+    size_t const master_secret_len = 48;
+    size_t len = 0;
+    size_t j;
+    int ret = 0;
+
+    ((void) p_expkey);
+    ((void) kb);
+    ((void) maclen);
+    ((void) keylen);
+    ((void) ivlen);
+    ((void) server_random);
+    ((void) tls_prf_type);
+
+    len += sprintf( nss_keylog_line + len,
+                    "%s", "CLIENT_RANDOM " );
+
+    for( j = 0; j < client_random_len; j++ )
+    {
+        len += sprintf( nss_keylog_line + len,
+                        "%02x", client_random[j] );
+    }
+
+    len += sprintf( nss_keylog_line + len, " " );
+
+    for( j = 0; j < master_secret_len; j++ )
+    {
+        len += sprintf( nss_keylog_line + len,
+                        "%02x", ms[j] );
+    }
+
+    len += sprintf( nss_keylog_line + len, "\n" );
+    nss_keylog_line[ len ] = '\0';
+
+    mbedtls_printf( "\n" );
+    mbedtls_printf( "---------------- NSS KEYLOG -----------------\n" );
+    mbedtls_printf( "%s", nss_keylog_line );
+    mbedtls_printf( "---------------------------------------------\n" );
+
+    if( opt.nss_keylog_file != NULL )
+    {
+        FILE *f;
+
+        if( ( f = fopen( opt.nss_keylog_file, "a" ) ) == NULL )
+        {
+            ret = -1;
+            goto exit;
+        }
+
+        if( fwrite( nss_keylog_line, 1, len, f ) != len )
+        {
+            ret = -1;
+            fclose( f );
+            goto exit;
+        }
+
+        fclose( f );
+    }
+
+exit:
+    mbedtls_platform_zeroize( nss_keylog_line,
+                              sizeof( nss_keylog_line ) );
+    return( ret );
+}
+
+#if defined( MBEDTLS_SSL_DTLS_SRTP )
+int dtls_srtp_key_derivation( void *p_expkey,
+                              const unsigned char *ms,
+                              const unsigned char *kb,
+                              size_t maclen,
+                              size_t keylen,
+                              size_t ivlen,
+                              const unsigned char client_random[32],
+                              const unsigned char server_random[32],
+                              mbedtls_tls_prf_types tls_prf_type )
+{
+    dtls_srtp_keys *keys = (dtls_srtp_keys *)p_expkey;
+
+    ( ( void ) kb );
+    memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
+    memcpy( keys->randbytes, client_random, 32 );
+    memcpy( keys->randbytes + 32, server_random, 32 );
+    keys->tls_prf_type = tls_prf_type;
+
+    if( opt.debug_level > 2 )
+    {
+        mbedtls_printf( "exported maclen is %u\n", (unsigned) maclen );
+        mbedtls_printf( "exported keylen is %u\n", (unsigned) keylen );
+        mbedtls_printf( "exported ivlen is %u\n", (unsigned) ivlen );
+    }
+    return( 0 );
+}
+#endif /* MBEDTLS_SSL_DTLS_SRTP */
+
+#endif /* MBEDTLS_SSL_EXPORT_KEYS */
+
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+int ssl_check_record( mbedtls_ssl_context const *ssl,
+                      unsigned char const *buf, size_t len )
+{
+    int ret;
+    unsigned char *tmp_buf;
+
+    /* Record checking may modify the input buffer,
+     * so make a copy. */
+    tmp_buf = mbedtls_calloc( 1, len );
+    if( tmp_buf == NULL )
+        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    memcpy( tmp_buf, buf, len );
+
+    ret = mbedtls_ssl_check_record( ssl, tmp_buf, len );
+    if( ret != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
+    {
+        int ret_repeated;
+
+        /* Test-only: Make sure that mbedtls_ssl_check_record()
+         *            doesn't alter state. */
+        memcpy( tmp_buf, buf, len ); /* Restore buffer */
+        ret_repeated = mbedtls_ssl_check_record( ssl, tmp_buf, len );
+        if( ret != ret_repeated )
+        {
+            mbedtls_printf( "mbedtls_ssl_check_record() returned inconsistent results.\n" );
+            return( -1 );
+        }
+
+        switch( ret )
+        {
+            case 0:
+                break;
+
+            case MBEDTLS_ERR_SSL_INVALID_RECORD:
+                if( opt.debug_level > 1 )
+                    mbedtls_printf( "mbedtls_ssl_check_record() detected invalid record.\n" );
+                break;
+
+            case MBEDTLS_ERR_SSL_INVALID_MAC:
+                if( opt.debug_level > 1 )
+                    mbedtls_printf( "mbedtls_ssl_check_record() detected unauthentic record.\n" );
+                break;
+
+            case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
+                if( opt.debug_level > 1 )
+                    mbedtls_printf( "mbedtls_ssl_check_record() detected unexpected record.\n" );
+                break;
+
+            default:
+                mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret );
+                return( -1 );
+        }
+
+        /* Regardless of the outcome, forward the record to the stack. */
+    }
+
+    mbedtls_free( tmp_buf );
+
+    return( 0 );
+}
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+
+int recv_cb( void *ctx, unsigned char *buf, size_t len )
+{
+    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+    size_t recv_len;
+    int ret;
+
+    if( opt.nbio == 2 )
+        ret = delayed_recv( io_ctx->net, buf, len );
+    else
+        ret = mbedtls_net_recv( io_ctx->net, buf, len );
+    if( ret < 0 )
+        return( ret );
+    recv_len = (size_t) ret;
+
+    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+    {
+        /* Here's the place to do any datagram/record checking
+         * in between receiving the packet from the underlying
+         * transport and passing it on to the TLS stack. */
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
+            return( -1 );
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+    }
+
+    return( (int) recv_len );
+}
+
+int recv_timeout_cb( void *ctx, unsigned char *buf, size_t len,
+                     uint32_t timeout )
+{
+    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+    int ret;
+    size_t recv_len;
+
+    ret = mbedtls_net_recv_timeout( io_ctx->net, buf, len, timeout );
+    if( ret < 0 )
+        return( ret );
+    recv_len = (size_t) ret;
+
+    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+    {
+        /* Here's the place to do any datagram/record checking
+         * in between receiving the packet from the underlying
+         * transport and passing it on to the TLS stack. */
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+        if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
+            return( -1 );
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+    }
+
+    return( (int) recv_len );
+}
+
+int send_cb( void *ctx, unsigned char const *buf, size_t len )
+{
+    io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+
+    if( opt.nbio == 2 )
+        return( delayed_send( io_ctx->net, buf, len ) );
+
+    return( mbedtls_net_send( io_ctx->net, buf, len ) );
+}
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+int ssl_sig_hashes_for_test[] = {
+#if defined(MBEDTLS_SHA512_C)
+    MBEDTLS_MD_SHA512,
+    MBEDTLS_MD_SHA384,
+#endif
+#if defined(MBEDTLS_SHA256_C)
+    MBEDTLS_MD_SHA256,
+    MBEDTLS_MD_SHA224,
+#endif
+#if defined(MBEDTLS_SHA1_C)
+    /* Allow SHA-1 as we use it extensively in tests. */
+    MBEDTLS_MD_SHA1,
+#endif
+    MBEDTLS_MD_NONE
+};
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
diff --git a/programs/ssl/ssl_test_lib.c b/programs/ssl/ssl_test_lib.c
index 40a6aa9..22453c1 100644
--- a/programs/ssl/ssl_test_lib.c
+++ b/programs/ssl/ssl_test_lib.c
@@ -24,4 +24,177 @@
 
 #if !defined(MBEDTLS_SSL_TEST_IMPOSSIBLE)
 
+void my_debug( void *ctx, int level,
+               const char *file, int line,
+               const char *str )
+{
+    const char *p, *basename;
+
+    /* Extract basename from file */
+    for( p = basename = file; *p != '\0'; p++ )
+        if( *p == '/' || *p == '\\' )
+            basename = p + 1;
+
+    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s",
+                     basename, line, level, str );
+    fflush( (FILE *) ctx  );
+}
+
+mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
+{
+    (void) time;
+    return 0x5af2a056;
+}
+
+int dummy_entropy( void *data, unsigned char *output, size_t len )
+{
+    size_t i;
+    int ret;
+    (void) data;
+
+    ret = mbedtls_entropy_func( data, output, len );
+    for( i = 0; i < len; i++ )
+    {
+        //replace result with pseudo random
+        output[i] = (unsigned char) rand();
+    }
+    return( ret );
+}
+
+#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
+int ca_callback( void *data, mbedtls_x509_crt const *child,
+                 mbedtls_x509_crt **candidates )
+{
+    int ret = 0;
+    mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
+    mbedtls_x509_crt *first;
+
+    /* This is a test-only implementation of the CA callback
+     * which always returns the entire list of trusted certificates.
+     * Production implementations managing a large number of CAs
+     * should use an efficient presentation and lookup for the
+     * set of trusted certificates (such as a hashtable) and only
+     * return those trusted certificates which satisfy basic
+     * parental checks, such as the matching of child `Issuer`
+     * and parent `Subject` field or matching key identifiers. */
+    ((void) child);
+
+    first = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
+    if( first == NULL )
+    {
+        ret = -1;
+        goto exit;
+    }
+    mbedtls_x509_crt_init( first );
+
+    if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
+    {
+        ret = -1;
+        goto exit;
+    }
+
+    while( ca->next != NULL )
+    {
+        ca = ca->next;
+        if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
+        {
+            ret = -1;
+            goto exit;
+        }
+    }
+
+exit:
+
+    if( ret != 0 )
+    {
+        mbedtls_x509_crt_free( first );
+        mbedtls_free( first );
+        first = NULL;
+    }
+
+    *candidates = first;
+    return( ret );
+}
+#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
+
+int delayed_recv( void *ctx, unsigned char *buf, size_t len )
+{
+    static int first_try = 1;
+    int ret;
+
+    if( first_try )
+    {
+        first_try = 0;
+        return( MBEDTLS_ERR_SSL_WANT_READ );
+    }
+
+    ret = mbedtls_net_recv( ctx, buf, len );
+    if( ret != MBEDTLS_ERR_SSL_WANT_READ )
+        first_try = 1; /* Next call will be a new operation */
+    return( ret );
+}
+
+int delayed_send( void *ctx, const unsigned char *buf, size_t len )
+{
+    static int first_try = 1;
+    int ret;
+
+    if( first_try )
+    {
+        first_try = 0;
+        return( MBEDTLS_ERR_SSL_WANT_WRITE );
+    }
+
+    ret = mbedtls_net_send( ctx, buf, len );
+    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
+        first_try = 1; /* Next call will be a new operation */
+    return( ret );
+}
+
+#if !defined(MBEDTLS_TIMING_C)
+int idle( mbedtls_net_context *fd,
+          int idle_reason )
+#else
+int idle( mbedtls_net_context *fd,
+          mbedtls_timing_delay_context *timer,
+          int idle_reason )
+#endif
+{
+    int ret;
+    int poll_type = 0;
+
+    if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
+        poll_type = MBEDTLS_NET_POLL_WRITE;
+    else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
+        poll_type = MBEDTLS_NET_POLL_READ;
+#if !defined(MBEDTLS_TIMING_C)
+    else
+        return( 0 );
+#endif
+
+    while( 1 )
+    {
+        /* Check if timer has expired */
+#if defined(MBEDTLS_TIMING_C)
+        if( timer != NULL &&
+            mbedtls_timing_get_delay( timer ) == 2 )
+        {
+            break;
+        }
+#endif /* MBEDTLS_TIMING_C */
+
+        /* Check if underlying transport became available */
+        if( poll_type != 0 )
+        {
+            ret = mbedtls_net_poll( fd, poll_type, 0 );
+            if( ret < 0 )
+                return( ret );
+            if( ret == poll_type )
+                break;
+        }
+    }
+
+    return( 0 );
+}
+
 #endif /* !defined(MBEDTLS_SSL_TEST_IMPOSSIBLE) */
diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index 88dd3ec..666e694 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -133,6 +133,35 @@
     mbedtls_net_context *net;
 } io_ctx_t;
 
-#endif /* MBEDTLS_SSL_TEST_IMPOSSIBLE conditions: else */
+void my_debug( void *ctx, int level,
+               const char *file, int line,
+               const char *str );
 
+mbedtls_time_t dummy_constant_time( mbedtls_time_t* time );
+
+int dummy_entropy( void *data, unsigned char *output, size_t len );
+
+#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
+int ca_callback( void *data, mbedtls_x509_crt const *child,
+                 mbedtls_x509_crt **candidates );
+#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
+
+/*
+ * Test recv/send functions that make sure each try returns
+ * WANT_READ/WANT_WRITE at least once before sucesseding
+ */
+int delayed_recv( void *ctx, unsigned char *buf, size_t len );
+int delayed_send( void *ctx, const unsigned char *buf, size_t len );
+
+/*
+ * Wait for an event from the underlying transport or the timer
+ * (Used in event-driven IO mode).
+ */
+int idle( mbedtls_net_context *fd,
+#if defined(MBEDTLS_TIMING_C)
+          mbedtls_timing_delay_context *timer,
+#endif
+          int idle_reason );
+
+#endif /* MBEDTLS_SSL_TEST_IMPOSSIBLE conditions: else */
 #endif /* MBEDTLS_PROGRAMS_SSL_SSL_TEST_LIB_H */