Import of Linux 2.2.12 subset (ipv4 stack and related)

1 files changed, 33 insertions, 0 deletions

diff --git a/pfinet/linux-src/include/net/ipip.h b/pfinet/linux-src/include/net/ipip.h
new file mode 100644
index 00000000..22c464c3
--- /dev/null
+++ b/pfinet/linux-src/include/net/ipip.h
@@ -0,0 +1,33 @@
+#ifndef __NET_IPIP_H
+#define __NET_IPIP_H 1
+
+#include <linux/if_tunnel.h>
+
+/* Keep error state on tunnel for 30 sec */
+#define IPTUNNEL_ERR_TIMEO	(30*HZ)
+
+struct ip_tunnel
+{
+	struct ip_tunnel	*next;
+	struct device		*dev;
+	struct net_device_stats	stat;
+
+	int			recursion;	/* Depth of hard_start_xmit recursion */
+	int			err_count;	/* Number of arrived ICMP errors */
+	unsigned long		err_time;	/* Time when the last ICMP error arrived */
+
+	/* These four fields used only by GRE */
+	__u32			i_seqno;	/* The last seen seqno	*/
+	__u32			o_seqno;	/* The last output seqno */
+	int			hlen;		/* Precalculated GRE header length */
+	int			mlink;
+
+	struct ip_tunnel_parm	parms;
+};
+
+extern int	ipip_init(void);
+extern int	ipgre_init(void);
+extern int	sit_init(void);
+extern void	sit_cleanup(void);
+
+#endif