core: add OSSL_INOUT_CALLBACK
@@ -212,7 +212,8 @@ extern OSSL_provider_init_fn OSSL_provider_init;
* application callback it knows about.
*/
typedef int (OSSL_CALLBACK)(const OSSL_PARAM params[], void *arg);
-
+typedef int (OSSL_INOUT_CALLBACK)(const OSSL_PARAM in_params[],
+ OSSL_PARAM out_params[], void *arg);
/*
* Passphrase callback function signature
*
