Enhance debugging output
@@ -4487,6 +4487,8 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
{
int offset;
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
+ MBEDTLS_SSL_DEBUG_MSG( 2, ( "Attempt to free buffered messages to have %u bytes available",
+ (unsigned) desired ) );
/* Get rid of future records epoch first, if such exist. */
ssl_free_buffered_record( ssl );
@@ -4495,6 +4497,7 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
+ MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) );
return( 0 );
}
@@ -4513,6 +4516,7 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
+ MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) );
return( 0 );
}
}
@@ -4622,8 +4626,10 @@ static int ssl_buffer_message( mbedtls_ssl_context *ssl )
if( ssl_buffer_make_space( ssl, reassembly_buf_sz ) != 0 )
{
- MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- fail\n",
- (unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+ MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %u (%u with bitmap) would exceed the compile-time limit %u (already %u bytes buffered) -- fail\n",
+ (unsigned) msg_len,
+ (unsigned) reassembly_buf_sz,
+ MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) );
ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
goto exit;
