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Adapt client auth detection in ssl_parse_certificate_verify()

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The server expects a CertificateVerify message only if it has
previously received a Certificate from the client.

So far, this was detected by looking at the `peer_cert` field
in the current session. Preparing to remove the latter, this
commit changes this to instead determine the presence of a peer
certificate by checking the new `peer_cert_digest` pointer.
This commit is contained in:
Hanno Becker 2019-02-07 13:17:25 +00:00
parent 57b33c9e4e
commit 2a831a4ba7
1 changed files with 17 additions and 2 deletions
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19
library/ssl_srv.c
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@ -4066,14 +4066,29 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ||
ssl->session_negotiate->peer_cert == NULL )
if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
ssl->state++;
return( 0 );
}
#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
ssl->state++;
return( 0 );
}
#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
if( ssl->session_negotiate->peer_cert_digest == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
ssl->state++;
return( 0 );
}
#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/* Read the message without adding it to the checksum */
ret = mbedtls_ssl_read_record( ssl, 0 /* no checksum update */ );
if( 0 != ret )