Add wait flight2 state.

The state is come from RFC8446 section A.2

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2022-12-12 12:59:44 +08:00
parent 4e9b70e03a
commit 7d8c3fe12c
2 changed files with 46 additions and 1 deletions

View file

@ -687,12 +687,12 @@ typedef enum {
MBEDTLS_SSL_SERVER_FINISHED,
MBEDTLS_SSL_FLUSH_BUFFERS,
MBEDTLS_SSL_HANDSHAKE_WRAPUP,
MBEDTLS_SSL_NEW_SESSION_TICKET,
MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT,
MBEDTLS_SSL_HELLO_RETRY_REQUEST,
MBEDTLS_SSL_ENCRYPTED_EXTENSIONS,
MBEDTLS_SSL_END_OF_EARLY_DATA,
MBEDTLS_SSL_WAIT_FLIGHT2,
MBEDTLS_SSL_CLIENT_CERTIFICATE_VERIFY,
MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED,
MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO,

View file

@ -2782,6 +2782,30 @@ static int ssl_tls13_write_server_finished(mbedtls_ssl_context *ssl)
MBEDTLS_SSL_DEBUG_MSG(1, ("Switch to handshake keys for inbound traffic"));
mbedtls_ssl_set_inbound_transform(ssl, ssl->handshake->transform_handshake);
mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_WAIT_FLIGHT2);
return 0;
}
/*
* Handler for MBEDTLS_SSL_WAIT_FLIGHT2
*
* RFC 8446 section A.2
*
* WAIT_FLIGHT2
* |
* +--------+--------+
* No auth | | Client auth
* | |
* | v
* | WAIT_CERT
* | Recv | | Recv Certificate
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_tls13_process_wait_flight2(mbedtls_ssl_context *ssl)
{
MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_tls13_process_wait_flight2"));
if (ssl->handshake->certificate_request_sent) {
mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_CERTIFICATE);
} else {
@ -2790,6 +2814,7 @@ static int ssl_tls13_write_server_finished(mbedtls_ssl_context *ssl)
mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_FINISHED);
}
MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_tls13_process_wait_flight2"));
return 0;
}
@ -3213,10 +3238,30 @@ int mbedtls_ssl_tls13_handshake_server_step(mbedtls_ssl_context *ssl)
break;
#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
/* RFC 8446 section A.2
*
* | Send Finished ( SERVER_FINISHED )
* | K_send = application
* +--------+--------+
* No 0-RTT | | 0-RTT
* | |
* K_recv = handshake | | K_recv = early data
* [Skip decrypt errors] | +------> WAIT_EOED -+
* | | Recv | | Recv EndOfEarlyData
* | | early data | | K_recv = handshake
* | +------------+ |
* | |
* +> WAIT_FLIGHT2 <--------+
* |
*/
case MBEDTLS_SSL_SERVER_FINISHED:
ret = ssl_tls13_write_server_finished(ssl);
break;
case MBEDTLS_SSL_WAIT_FLIGHT2:
ret = ssl_tls13_process_wait_flight2(ssl);
break;
case MBEDTLS_SSL_CLIENT_FINISHED:
ret = ssl_tls13_process_client_finished(ssl);
break;