1 #ifndef __LINUX_IP6_NETFILTER_H
2 #define __LINUX_IP6_NETFILTER_H
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^)
11 #include <linux/netfilter.h>
13 /* only for userspace compatibility */
16 #define NFC_IP6_SRC 0x0001
17 /* Dest IP address. */
18 #define NFC_IP6_DST 0x0002
20 #define NFC_IP6_IF_IN 0x0004
22 #define NFC_IP6_IF_OUT 0x0008
24 #define NFC_IP6_TOS 0x0010
26 #define NFC_IP6_PROTO 0x0020
28 #define NFC_IP6_OPTIONS 0x0040
30 #define NFC_IP6_FRAG 0x0080
33 /* Per-protocol information: only matters if proto match. */
35 #define NFC_IP6_TCPFLAGS 0x0100
37 #define NFC_IP6_SRC_PT 0x0200
39 #define NFC_IP6_DST_PT 0x0400
40 /* Something else about the proto */
41 #define NFC_IP6_PROTO_UNKNOWN 0x2000
44 /* After promisc drops, checksum checks. */
45 #define NF_IP6_PRE_ROUTING 0
46 /* If the packet is destined for this box. */
47 #define NF_IP6_LOCAL_IN 1
48 /* If the packet is destined for another interface. */
49 #define NF_IP6_FORWARD 2
50 /* Packets coming from a local process. */
51 #define NF_IP6_LOCAL_OUT 3
52 /* Packets about to hit the wire. */
53 #define NF_IP6_POST_ROUTING 4
54 #define NF_IP6_NUMHOOKS 5
57 enum nf_ip6_hook_priorities {
58 NF_IP6_PRI_FIRST = INT_MIN,
59 NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
60 NF_IP6_PRI_SELINUX_FIRST = -225,
61 NF_IP6_PRI_CONNTRACK = -200,
62 NF_IP6_PRI_MANGLE = -150,
63 NF_IP6_PRI_NAT_DST = -100,
64 NF_IP6_PRI_FILTER = 0,
65 NF_IP6_PRI_NAT_SRC = 100,
66 NF_IP6_PRI_SELINUX_LAST = 225,
67 NF_IP6_PRI_LAST = INT_MAX,
70 #ifdef CONFIG_NETFILTER
71 extern int ip6_route_me_harder(struct sk_buff *skb);
72 extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
73 unsigned int dataoff, u_int8_t protocol);
75 extern int ipv6_netfilter_init(void);
76 extern void ipv6_netfilter_fini(void);
77 #else /* CONFIG_NETFILTER */
78 static __inline__ int ipv6_netfilter_init(void) { return 0; }
79 static __inline__ void ipv6_netfilter_fini(void) { return; }
80 #endif /* CONFIG_NETFILTER */
82 #endif /*__LINUX_IP6_NETFILTER_H*/