1#ifndef _NET_IP6_TUNNEL_H
2#define _NET_IP6_TUNNEL_H
3
4#include <linux/ipv6.h>
5#include <linux/netdevice.h>
6#include <linux/ip6_tunnel.h>
7
8/* capable of sending packets */
9#define IP6_TNL_F_CAP_XMIT 0x10000
10/* capable of receiving packets */
11#define IP6_TNL_F_CAP_RCV 0x20000
12
13/* IPv6 tunnel */
14
15struct ip6_tnl {
16	struct ip6_tnl __rcu *next;	/* next tunnel in list */
17	struct net_device *dev;	/* virtual device associated with tunnel */
18	struct ip6_tnl_parm parms;	/* tunnel configuration parameters */
19	struct flowi fl;	/* flowi template for xmit */
20	struct dst_entry *dst_cache;    /* cached dst */
21	u32 dst_cookie;
22};
23
24/* Tunnel encapsulation limit destination sub-option */
25
26struct ipv6_tlv_tnl_enc_lim {
27	__u8 type;		/* type-code for option         */
28	__u8 length;		/* option length                */
29	__u8 encap_limit;	/* tunnel encapsulation limit   */
30} __packed;
31
32#endif
33