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diff -Nur include/linux-new/if_tunnel.h include/linux/if_tunnel.h
--- ./include/linux/if_tunnel.h 1970-01-01 01:00:00.000000000 +0100
+++ ./include/linux/if_tunnel.h 2004-05-06 14:36:38.000000000 +0200
@@ -0,0 +1,32 @@
+#ifndef _IF_TUNNEL_H_
+#define _IF_TUNNEL_H_
+
+#include <net/if.h>
+#include <asm/types.h>
+
+#define SIOCGETTUNNEL (SIOCDEVPRIVATE + 0)
+#define SIOCADDTUNNEL (SIOCDEVPRIVATE + 1)
+#define SIOCDELTUNNEL (SIOCDEVPRIVATE + 2)
+#define SIOCCHGTUNNEL (SIOCDEVPRIVATE + 3)
+
+#define GRE_CSUM __constant_htons(0x8000)
+#define GRE_ROUTING __constant_htons(0x4000)
+#define GRE_KEY __constant_htons(0x2000)
+#define GRE_SEQ __constant_htons(0x1000)
+#define GRE_STRICT __constant_htons(0x0800)
+#define GRE_REC __constant_htons(0x0700)
+#define GRE_FLAGS __constant_htons(0x00F8)
+#define GRE_VERSION __constant_htons(0x0007)
+
+struct ip_tunnel_parm
+{
+ char name[IFNAMSIZ];
+ int link;
+ __u16 i_flags;
+ __u16 o_flags;
+ __u32 i_key;
+ __u32 o_key;
+ struct iphdr iph;
+};
+
+#endif /* _IF_TUNNEL_H_ */
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