Add field into handshake params
Add `extensions_present` field. It represents
which are present.
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 4c3f6c0..5f15b8d 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -103,6 +103,21 @@
#define MBEDTLS_SSL_RENEGOTIATION_DONE 2 /* Done or aborted */
#define MBEDTLS_SSL_RENEGOTIATION_PENDING 3 /* Requested (server only) */
+/* List of extensions used in extensions_present of mbedtls_ssl_handshake_params */
+#define MBEDTLS_SSL_EXT_NONE 0
+#define MBEDTLS_SSL_EXT_PRE_SHARED_KEY ( 1 << 0 )
+#define MBEDTLS_SSL_EXT_KEY_SHARE ( 1 << 1 )
+#define MBEDTLS_SSL_EXT_SIGNATURE_ALGORITHM ( 1 << 2 )
+#define MBEDTLS_SSL_EXT_SUPPORTED_GROUPS ( 1 << 3 )
+#define MBEDTLS_SSL_EXT_MAX_FRAGMENT_LENGTH ( 1 << 4 )
+#define MBEDTLS_SSL_EXT_ALPN ( 1 << 5 )
+#define MBEDTLS_SSL_EXT_SUPPORTED_VERSION ( 1 << 6 )
+#define MBEDTLS_SSL_EXT_PSK_KEY_EXCHANGE_MODES ( 1 << 7 )
+#define MBEDTLS_SSL_EXT_EARLY_DATA ( 1 << 8 )
+#define MBEDTLS_SSL_EXT_SERVERNAME ( 1 << 9 )
+#define MBEDTLS_SSL_EXT_COOKIE ( 1 << 10 )
+#define MBEDTLS_SSL_EXT_CID ( 1 << 11 )
+
#define MBEDTLS_SSL_PROC_STRIP_PARENS( ... ) __VA_ARGS__
#define MBEDTLS_SSL_PROC_CHK( fn, args ) \
@@ -631,6 +646,9 @@
int max_major_ver; /*!< max. major version client*/
int max_minor_ver; /*!< max. minor version client*/
int cli_exts; /*!< client extension presence*/
+#if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
+ int extensions_present; /*!< extension presence; Each bitfield represents an extension and defined as \c MBEDTLS_SSL_EXT_XXX */
+#endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
int new_session_ticket; /*!< use NewSessionTicket? */