[deliverable/linux.git] / include / linux / netfilter_ipv6.h

#ifndef __LINUX_IP6_NETFILTER_H
#define __LINUX_IP6_NETFILTER_H

/* IPv6-specific defines for netfilter. 
 * (C)1998 Rusty Russell -- This code is GPL.
 * (C)1999 David Jeffery
 *   this header was blatantly ripped from netfilter_ipv4.h 
 *   it's amazing what adding a bunch of 6s can do =8^)
 */

#include <linux/netfilter.h>

/* only for userspace compatibility */
#ifndef __KERNEL__

#include <limits.h> /* for INT_MIN, INT_MAX */

/* IP Cache bits. */
/* Src IP address. */
#define NFC_IP6_SRC              0x0001
/* Dest IP address. */
#define NFC_IP6_DST              0x0002
/* Input device. */
#define NFC_IP6_IF_IN            0x0004
/* Output device. */
#define NFC_IP6_IF_OUT           0x0008
/* TOS. */
#define NFC_IP6_TOS              0x0010
/* Protocol. */
#define NFC_IP6_PROTO            0x0020
/* IP options. */
#define NFC_IP6_OPTIONS          0x0040
/* Frag & flags. */
#define NFC_IP6_FRAG             0x0080


/* Per-protocol information: only matters if proto match. */
/* TCP flags. */
#define NFC_IP6_TCPFLAGS         0x0100
/* Source port. */
#define NFC_IP6_SRC_PT           0x0200
/* Dest port. */
#define NFC_IP6_DST_PT           0x0400
/* Something else about the proto */
#define NFC_IP6_PROTO_UNKNOWN    0x2000

/* IP6 Hooks */
/* After promisc drops, checksum checks. */
#define NF_IP6_PRE_ROUTING	0
/* If the packet is destined for this box. */
#define NF_IP6_LOCAL_IN		1
/* If the packet is destined for another interface. */
#define NF_IP6_FORWARD		2
/* Packets coming from a local process. */
#define NF_IP6_LOCAL_OUT		3
/* Packets about to hit the wire. */
#define NF_IP6_POST_ROUTING	4
#define NF_IP6_NUMHOOKS		5
#endif /* ! __KERNEL__ */


enum nf_ip6_hook_priorities {
	NF_IP6_PRI_FIRST = INT_MIN,
	NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
	NF_IP6_PRI_RAW = -300,
	NF_IP6_PRI_SELINUX_FIRST = -225,
	NF_IP6_PRI_CONNTRACK = -200,
	NF_IP6_PRI_MANGLE = -150,
	NF_IP6_PRI_NAT_DST = -100,
	NF_IP6_PRI_FILTER = 0,
	NF_IP6_PRI_SECURITY = 50,
	NF_IP6_PRI_NAT_SRC = 100,
	NF_IP6_PRI_SELINUX_LAST = 225,
	NF_IP6_PRI_CONNTRACK_HELPER = 300,
	NF_IP6_PRI_LAST = INT_MAX,
};

#ifdef  __KERNEL__

#ifdef CONFIG_NETFILTER
extern int ip6_route_me_harder(struct sk_buff *skb);
extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
				    unsigned int dataoff, u_int8_t protocol);

extern int ipv6_netfilter_init(void);
extern void ipv6_netfilter_fini(void);
#else /* CONFIG_NETFILTER */
static inline int ipv6_netfilter_init(void) { return 0; }
static inline void ipv6_netfilter_fini(void) { return; }
#endif /* CONFIG_NETFILTER */

#endif /* __KERNEL__ */

#endif /*__LINUX_IP6_NETFILTER_H*/
Commit	Line	Data
1da177e4 LT	1	#ifndef __LINUX_IP6_NETFILTER_H
	2	#define __LINUX_IP6_NETFILTER_H
	3
	4	/* IPv6-specific defines for netfilter.
	5	* (C)1998 Rusty Russell -- This code is GPL.
	6	* (C)1999 David Jeffery
	7	* this header was blatantly ripped from netfilter_ipv4.h
	8	* it's amazing what adding a bunch of 6s can do =8^)
	9	*/
	10
	11	#include <linux/netfilter.h>
	12
6869c4d8 HW	13	/* only for userspace compatibility */
6869c4d8 HW	14	#ifndef __KERNEL__
598aaff2 BH	15
	16	#include <limits.h> /* for INT_MIN, INT_MAX */
	17
1da177e4 LT	18	/* IP Cache bits. */
	19	/* Src IP address. */
	20	#define NFC_IP6_SRC 0x0001
	21	/* Dest IP address. */
	22	#define NFC_IP6_DST 0x0002
	23	/* Input device. */
	24	#define NFC_IP6_IF_IN 0x0004
	25	/* Output device. */
	26	#define NFC_IP6_IF_OUT 0x0008
	27	/* TOS. */
	28	#define NFC_IP6_TOS 0x0010
	29	/* Protocol. */
	30	#define NFC_IP6_PROTO 0x0020
	31	/* IP options. */
	32	#define NFC_IP6_OPTIONS 0x0040
	33	/* Frag & flags. */
	34	#define NFC_IP6_FRAG 0x0080
	35
	36
	37	/* Per-protocol information: only matters if proto match. */
	38	/* TCP flags. */
	39	#define NFC_IP6_TCPFLAGS 0x0100
	40	/* Source port. */
	41	#define NFC_IP6_SRC_PT 0x0200
	42	/* Dest port. */
	43	#define NFC_IP6_DST_PT 0x0400
	44	/* Something else about the proto */
	45	#define NFC_IP6_PROTO_UNKNOWN 0x2000
1da177e4 LT	46
	47	/* IP6 Hooks */
	48	/* After promisc drops, checksum checks. */
	49	#define NF_IP6_PRE_ROUTING 0
	50	/* If the packet is destined for this box. */
	51	#define NF_IP6_LOCAL_IN 1
	52	/* If the packet is destined for another interface. */
	53	#define NF_IP6_FORWARD 2
	54	/* Packets coming from a local process. */
	55	#define NF_IP6_LOCAL_OUT 3
	56	/* Packets about to hit the wire. */
	57	#define NF_IP6_POST_ROUTING 4
	58	#define NF_IP6_NUMHOOKS 5
6e23ae2a	59	#endif /* ! __KERNEL__ */
1da177e4 LT	60
	61
	62	enum nf_ip6_hook_priorities {
	63	NF_IP6_PRI_FIRST = INT_MIN,
9fb9cbb1	64	NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
9c138866	65	NF_IP6_PRI_RAW = -300,
1da177e4 LT	66	NF_IP6_PRI_SELINUX_FIRST = -225,
1da177e4 LT	67	NF_IP6_PRI_CONNTRACK = -200,
1da177e4 LT	68	NF_IP6_PRI_MANGLE = -150,
1da177e4 LT	69	NF_IP6_PRI_NAT_DST = -100,
1da177e4	70	NF_IP6_PRI_FILTER = 0,
17e6e59f	71	NF_IP6_PRI_SECURITY = 50,
1da177e4 LT	72	NF_IP6_PRI_NAT_SRC = 100,
1da177e4 LT	73	NF_IP6_PRI_SELINUX_LAST = 225,
12f7a505	74	NF_IP6_PRI_CONNTRACK_HELPER = 300,
1da177e4 LT	75	NF_IP6_PRI_LAST = INT_MAX,
	76	};
	77
cdf060a5 AB	78	#ifdef __KERNEL__
cdf060a5 AB	79
bb94aa16	80	#ifdef CONFIG_NETFILTER
9123de2c	81	extern int ip6_route_me_harder(struct sk_buff *skb);
b51655b9	82	extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
422c346f PM	83	unsigned int dataoff, u_int8_t protocol);
422c346f PM	84
20380731 ACM	85	extern int ipv6_netfilter_init(void);
20380731 ACM	86	extern void ipv6_netfilter_fini(void);
bb94aa16 PM	87	#else /* CONFIG_NETFILTER */
	88	static inline int ipv6_netfilter_init(void) { return 0; }
	89	static inline void ipv6_netfilter_fini(void) { return; }
	90	#endif /* CONFIG_NETFILTER */
2cc7d573	91
cdf060a5 AB	92	#endif /* __KERNEL__ */
cdf060a5 AB	93
1da177e4	94	#endif /__LINUX_IP6_NETFILTER_H/