commit 54413b10c2350cbf6a637bdb0fc244b931a7bb08
author Xiaokang Qian <xiaokang.qian@arm.com> Thu Oct 20 05:57:03 2022 +0000
committer Xiaokang Qian <xiaokang.qian@arm.com> Tue Oct 25 03:00:18 2022 +0000
tree d848bdde02166a81815ac766f1035d025193d4b8
parent 2012361ae6be5e480b6c273c7af49a4c7a7cc79b

Add early data support preparatory work

Add MBEDTLS_SSL_EARLY_DATA configuration option
Define early_data_enabled field in mbedtls_ssl_config
Add function mbedtls_ssl_conf_early_data

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>

include/mbedtls/mbedtls_config.h

diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 9588ca4..8e45726 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1633,6 +1633,14 @@
 #define MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS 1
 
 /**
+* \def MBEDTLS_SSL_EARLY_DATA
+*
+* Allows to add functionality for TLS/DTLS 1.3 early data.
+*
+*/
+//#define MBEDTLS_SSL_EARLY_DATA
+
+/**
  * \def MBEDTLS_SSL_PROTO_DTLS
  *
  * Enable support for DTLS (all available versions).

include/mbedtls/ssl.h

diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 9677c71..57c07b4 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -329,6 +329,12 @@
 #define MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED       1
 #define MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED      0
 
+#define MBEDTLS_SSL_EARLY_DATA_DISABLED        0
+#define MBEDTLS_SSL_EARLY_DATA_ENABLED         1
+
+#define MBEDTLS_SSL_EARLY_DATA_OFF        0
+#define MBEDTLS_SSL_EARLY_DATA_ON         1
+
 #define MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED    0
 #define MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED      1
 
@@ -1496,6 +1502,12 @@
                                      *   is not \c 0. */
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED */
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    int early_data_enabled;     /*!< Early data indication:
+                        *   - MBEDTLS_SSL_EARLY_DATA_DISABLED,
+                        *   - MBEDTLS_SSL_EARLY_DATA_ENABLED */
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
 #if defined(MBEDTLS_SSL_ALPN)
     const char **MBEDTLS_PRIVATE(alpn_list);         /*!< ordered list of protocols          */
 #endif
@@ -1905,6 +1917,32 @@
  */
 void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode );
 
+/**
+* \brief          Set the early_data mode
+*                 Default: disabled on server and client
+*
+* \param ssl     SSL context
+* \param early_data can be:
+*
+*  MBEDTLS_SSL_EARLY_DATA_DISABLED:  early data functionality will not be used
+*                        (default on server)
+*                        (default on client)
+*
+*  MBEDTLS_SSL_EARLY_DATA_ENABLED:  early data functionality is enabled and
+*                        may be negotiated in the handshake. Application using
+*                        early data functionality needs to be aware of the
+*                        lack of replay protection of the early data application
+*                        payloads.
+*
+* \param max_early_data  Max number of bytes allowed for early data (server only).
+* \param early_data_callback Callback function when early data is received (server
+*                            only).
+*/
+#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_EARLY_DATA)
+void mbedtls_ssl_conf_early_data( mbedtls_ssl_config *conf,
+                                  int early_data_enabled );
+#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_EARLY_DATA */
+
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 /**
  * \brief          Set the verification callback (Optional).