Add identifier for CID extension
Note: The current draft
https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-04
does not yet specify the extension value, so we
use a temporary value of 42.
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 494f8c2..b45ceb3 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -386,6 +386,10 @@
#define MBEDTLS_TLS_EXT_SESSION_TICKET 35
+/* The value of the CID extension is still TBD as of
+ * https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-04. */
+#define MBEDTLS_TLS_EXT_CID 42 /* TBD */
+
#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP 256 /* experimental */
#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01