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 */
17 #define NFC_IP6_SRC 0x0001
18 /* Dest IP address. */
19 #define NFC_IP6_DST 0x0002
21 #define NFC_IP6_IF_IN 0x0004
23 #define NFC_IP6_IF_OUT 0x0008
25 #define NFC_IP6_TOS 0x0010
27 #define NFC_IP6_PROTO 0x0020
29 #define NFC_IP6_OPTIONS 0x0040
31 #define NFC_IP6_FRAG 0x0080
34 /* Per-protocol information: only matters if proto match. */
36 #define NFC_IP6_TCPFLAGS 0x0100
38 #define NFC_IP6_SRC_PT 0x0200
40 #define NFC_IP6_DST_PT 0x0400
41 /* Something else about the proto */
42 #define NFC_IP6_PROTO_UNKNOWN 0x2000
43 #endif /* ! __KERNEL__ */
47 /* After promisc drops, checksum checks. */
48 #define NF_IP6_PRE_ROUTING 0
49 /* If the packet is destined for this box. */
50 #define NF_IP6_LOCAL_IN 1
51 /* If the packet is destined for another interface. */
52 #define NF_IP6_FORWARD 2
53 /* Packets coming from a local process. */
54 #define NF_IP6_LOCAL_OUT 3
55 /* Packets about to hit the wire. */
56 #define NF_IP6_POST_ROUTING 4
57 #define NF_IP6_NUMHOOKS 5
60 enum nf_ip6_hook_priorities {
61 NF_IP6_PRI_FIRST = INT_MIN,
62 NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
63 NF_IP6_PRI_SELINUX_FIRST = -225,
64 NF_IP6_PRI_CONNTRACK = -200,
65 NF_IP6_PRI_MANGLE = -150,
66 NF_IP6_PRI_NAT_DST = -100,
67 NF_IP6_PRI_FILTER = 0,
68 NF_IP6_PRI_NAT_SRC = 100,
69 NF_IP6_PRI_SELINUX_LAST = 225,
70 NF_IP6_PRI_LAST = INT_MAX,
73 #ifdef CONFIG_NETFILTER
74 extern int ip6_route_me_harder(struct sk_buff *skb);
75 extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
76 unsigned int dataoff, u_int8_t protocol);
78 extern int ipv6_netfilter_init(void);
79 extern void ipv6_netfilter_fini(void);
80 #else /* CONFIG_NETFILTER */
81 static inline int ipv6_netfilter_init(void) { return 0; }
82 static inline void ipv6_netfilter_fini(void) { return; }
83 #endif /* CONFIG_NETFILTER */
85 #endif /*__LINUX_IP6_NETFILTER_H*/