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Move ssl_update_in_pointers() to after record hdr parsing

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Previously, ssl_update_in_pointers() ensured that the in_xxx pointers
in the SSL context are set to their default state so that the record
header parsing function ssl_parse_record_header() could make use of them.
By now, the latter is independent of these pointers, so they don't need
to be setup before calling ssl_parse_record_header() anymore.
However, other parts of the messaging stack might still depend on it
(to be studied), and hence this commit does not yet reomve
ssl_update_in_pointers() entirely.
This commit is contained in:
Hanno Becker 2019-07-12 09:23:47 +01:00
parent 0183d699bf
commit d8bf8ceeb4
1 changed files with 10 additions and 5 deletions
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15
library/ssl_tls.c
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@ -5994,11 +5994,6 @@ static int ssl_get_next_record( mbedtls_ssl_context *ssl )
return( ret );
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/* Reset in pointers to default state for TLS/DTLS records,
* assuming no CID and no offset between record content and
* record plaintext. */
ssl_update_in_pointers( ssl );
/* Ensure that we have enough space available for the default form
* of TLS / DTLS record headers (5 Bytes for TLS, 13 Bytes for DTLS,
* with no space for CIDs counted in). */
@ -6028,6 +6023,11 @@ static int ssl_get_next_record( mbedtls_ssl_context *ssl )
if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD )
{
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
/* Reset in pointers to default state for TLS/DTLS records,
* assuming no CID and no offset between record content and
* record plaintext. */
ssl_update_in_pointers( ssl );
/* Setup internal message pointers from record structure. */
ssl->in_msgtype = rec.type;
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
@ -6067,6 +6067,11 @@ static int ssl_get_next_record( mbedtls_ssl_context *ssl )
}
}
/* Reset in pointers to default state for TLS/DTLS records,
* assuming no CID and no offset between record content and
* record plaintext. */
ssl_update_in_pointers( ssl );
/* Setup internal message pointers from record structure. */
ssl->in_msgtype = rec.type;
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)