1 files changed, 7 insertions, 0 deletions
diff --git a/ring.h b/ring.h
index be04cf0..8bfe1eb 100644
--- a/ring.h
+++ b/ring.h
@@ -26,6 +26,13 @@
 #include "built_in.h"
 #include "die.h"
 
+union tpacket_uhdr {
+	struct tpacket_hdr  *h1;
+	struct tpacket2_hdr *h2;
+	struct tpacket3_hdr *h3;
+	void *raw;
+};
+
 struct frame_map {
 	struct tpacket2_hdr tp_h __aligned_tpacket;
 	struct sockaddr_ll s_ll __align_tpacket(sizeof(struct tpacket2_hdr));