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re-introduce process_wait_flight2

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu
2023-12-01 16:27:08 +08:00
parent e32fac3d23
commit 9b72e39701
1 changed files with 55 additions and 1 deletions
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56
library/ssl_tls13_server.c
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@ -2758,6 +2758,60 @@ static int ssl_tls13_write_certificate_verify(mbedtls_ssl_context *ssl)
}
#endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED */
/*
* RFC 8446 section A.2
*
* | Send ServerHello
* | K_send = handshake
* | Send EncryptedExtensions
* | [Send CertificateRequest]
* Can send | [Send Certificate + CertificateVerify]
* app data | Send Finished
* after --> | K_send = application
* here +--------+--------+
* 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 <--------+
* |
* +--------+--------+
* No auth | | Client auth
* | |
* | v
* | WAIT_CERT
* | Recv | | Recv Certificate
* | empty | v
* | Certificate | WAIT_CV
* | | | Recv
* | v | CertificateVerify
* +-> WAIT_FINISHED <---+
* | Recv Finished
*
*
* The following function handles the state changes after WAIT_FLIGHT2 in the
* above diagram.
*/
static void 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 {
MBEDTLS_SSL_DEBUG_MSG(2, ("skip parse certificate"));
MBEDTLS_SSL_DEBUG_MSG(2, ("skip parse certificate verify"));
mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_FINISHED);
}
MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_tls13_process_wait_flight2"));
}
/*
* Handler for MBEDTLS_SSL_SERVER_FINISHED
*/
@ -2810,7 +2864,7 @@ 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);
ssl_tls13_process_wait_flight2(ssl);
return 0;
}