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TLS1.3: Add useful comments based on RFC8446

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Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
This commit is contained in:
XiaokangQian
2021-09-29 08:46:37 +00:00
parent 16c61aa738
commit 05420b120b
1 changed files with 8 additions and 1 deletions
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9
library/ssl_tls13_generic.c
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@ -46,11 +46,18 @@ int mbedtls_ssl_tls1_3_fetch_handshake_msg( mbedtls_ssl_context *ssl,
{ {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Receive unexpected handshake message." ) ); MBEDTLS_SSL_DEBUG_MSG( 1, ( "Receive unexpected handshake message." ) );
MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE, MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
ret = MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE; ret = MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
goto cleanup; goto cleanup;
} }
/*
* Jump handshake header (4 bytes, see Section 4 of RFC 8446).
* ...
* HandshakeType msg_type;
* uint24 length;
* ...
*/
*buf = ssl->in_msg + 4; *buf = ssl->in_msg + 4;
*buflen = ssl->in_hslen - 4; *buflen = ssl->in_hslen - 4;