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Enhance debugging output

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This commit is contained in:
Hanno Becker 2018-08-24 14:39:15 +01:00
parent 0e96585bdd
commit 6e12c1ea7d
1 changed files with 8 additions and 2 deletions
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10
library/ssl_tls.c
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@ -4487,6 +4487,8 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
{ {
int offset; int offset;
mbedtls_ssl_handshake_params * const hs = ssl->handshake; 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. */ /* Get rid of future records epoch first, if such exist. */
ssl_free_buffered_record( ssl ); 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 - if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) ) hs->buffering.total_bytes_buffered ) )
{ {
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) );
return( 0 ); return( 0 );
} }
@ -4513,6 +4516,7 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING - if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) ) hs->buffering.total_bytes_buffered ) )
{ {
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) );
return( 0 ); 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 ) 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", 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, MBEDTLS_SSL_DTLS_MAX_BUFFERING, (unsigned) msg_len,
(unsigned) reassembly_buf_sz,
MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) ); (unsigned) hs->buffering.total_bytes_buffered ) );
ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL; ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
goto exit; goto exit;