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Combine MBEDTLS_SSL_<CID-TLS1_3>_PADDING_GRANULARITY options

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Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
This commit is contained in:
TRodziewicz 2021-05-12 14:19:11 +02:00
parent b7abba28e3
commit e8dd7097c3
5 changed files with 12 additions and 29 deletions
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4
ChangeLog.d/issue4335.txt Normal file
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@ -0,0 +1,4 @@
Changes
* Replace MBEDTLS_SSL_CID_PADDING_GRANULARITY and
MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY with a single unified option
MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY. Fixes #4335.

23
include/mbedtls/config.h
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@ -3497,27 +3497,10 @@
*/
//#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32
/** \def MBEDTLS_SSL_CID_PADDING_GRANULARITY
/** \def MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY
*
* This option controls the use of record plaintext padding
* when using the Connection ID extension in DTLS 1.2.
*
* The padding will always be chosen so that the length of the
* padded plaintext is a multiple of the value of this option.
*
* Note: A value of \c 1 means that no padding will be used
* for outgoing records.
*
* Note: On systems lacking division instructions,
* a power of two should be preferred.
*
*/
//#define MBEDTLS_SSL_CID_PADDING_GRANULARITY 16
/** \def MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY
*
* This option controls the use of record plaintext padding
* in TLS 1.3.
* when using the Connection ID extension in DTLS 1.2 and TLS 1.3.
*
* The padding will always be chosen so that the length of the
* padded plaintext is a multiple of the value of this option.
@ -3528,7 +3511,7 @@
* Note: On systems lacking division instructions,
* a power of two should be preferred.
*/
//#define MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY 1
//#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16
/** \def MBEDTLS_SSL_OUT_CONTENT_LEN
*

8
include/mbedtls/ssl.h
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@ -257,12 +257,8 @@
#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32
#endif
#if !defined(MBEDTLS_SSL_CID_PADDING_GRANULARITY)
#define MBEDTLS_SSL_CID_PADDING_GRANULARITY 16
#endif
#if !defined(MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY)
#define MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY 1
#if !defined(MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY)
#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16
#endif
/* \} name SECTION: Module settings */

2
library/ssl_misc.h
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@ -164,7 +164,7 @@
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
#define MBEDTLS_SSL_MAX_CID_EXPANSION MBEDTLS_SSL_CID_PADDING_GRANULARITY
#define MBEDTLS_SSL_MAX_CID_EXPANSION MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY
#else
#define MBEDTLS_SSL_MAX_CID_EXPANSION 0
#endif

4
library/ssl_msg.c
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@ -579,7 +579,7 @@ int mbedtls_ssl_encrypt_buf( mbedtls_ssl_context *ssl,
{
size_t padding =
ssl_compute_padding_length( rec->data_len,
MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY );
MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY );
if( ssl_build_inner_plaintext( data,
&rec->data_len,
post_avail,
@ -605,7 +605,7 @@ int mbedtls_ssl_encrypt_buf( mbedtls_ssl_context *ssl,
{
size_t padding =
ssl_compute_padding_length( rec->data_len,
MBEDTLS_SSL_CID_PADDING_GRANULARITY );
MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY );
/*
* Wrap plaintext into DTLSInnerPlaintext structure.
* See ssl_build_inner_plaintext() for more information.