QUIC Dispatch: Add simple way to determine if SSL object is QUIC-related

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)

diff --git a/ssl/quic/quic_local.h b/ssl/quic/quic_local.h
index fa5d8cee1ee243ccd0f30a0531bf26f1f2864d1d..a1e84e6854e76e3202ad65f485be7d270e976def 100644 (file)
--- a/ssl/quic/quic_local.h
+++ b/ssl/quic/quic_local.h
@@ -179,10 +179,15 @@ void ossl_quic_conn_on_remote_conn_close(QUIC_CONNECTION *qc,
       : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION                 \
          ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
          : NULL))
+
+#  define IS_QUIC(ssl) ((ssl) != NULL                                   \
+                        && ((ssl)->type == SSL_TYPE_QUIC_CONNECTION     \
+                            || (ssl)->type == SSL_TYPE_QUIC_XSO))
 # else
 #  define QUIC_CONNECTION_FROM_SSL_int(ssl, c) NULL
 #  define QUIC_XSO_FROM_SSL_int(ssl, c) NULL
 #  define SSL_CONNECTION_FROM_QUIC_SSL_int(ssl, c) NULL
+#  define IS_QUIC(ssl) 0
 # endif
 
 # define QUIC_CONNECTION_FROM_SSL(ssl) \