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 13 /* only for userspace compatibility */ 14 /* IP Cache bits. */ 15 /* Src IP address. */ 16 #define NFC_IP6_SRC 0x0001 17 /* Dest IP address. */ 18 #define NFC_IP6_DST 0x0002 19 /* Input device. */ 20 #define NFC_IP6_IF_IN 0x0004 21 /* Output device. */ 22 #define NFC_IP6_IF_OUT 0x0008 23 /* TOS. */ 24 #define NFC_IP6_TOS 0x0010 25 /* Protocol. */ 26 #define NFC_IP6_PROTO 0x0020 27 /* IP options. */ 28 #define NFC_IP6_OPTIONS 0x0040 29 /* Frag & flags. */ 30 #define NFC_IP6_FRAG 0x0080 31 32 33 /* Per-protocol information: only matters if proto match. */ 34 /* TCP flags. */ 35 #define NFC_IP6_TCPFLAGS 0x0100 36 /* Source port. */ 37 #define NFC_IP6_SRC_PT 0x0200 38 /* Dest port. */ 39 #define NFC_IP6_DST_PT 0x0400 40 /* Something else about the proto */ 41 #define NFC_IP6_PROTO_UNKNOWN 0x2000 42 43 44 /* IP6 Hooks */ 45 /* After promisc drops, checksum checks. */ 46 #define NF_IP6_PRE_ROUTING 0 47 /* If the packet is destined for this box. */ 48 #define NF_IP6_LOCAL_IN 1 49 /* If the packet is destined for another interface. */ 50 #define NF_IP6_FORWARD 2 51 /* Packets coming from a local process. */ 52 #define NF_IP6_LOCAL_OUT 3 53 /* Packets about to hit the wire. */ 54 #define NF_IP6_POST_ROUTING 4 55 #define NF_IP6_NUMHOOKS 5 56 57 58 enum nf_ip6_hook_priorities { 59 NF_IP6_PRI_FIRST = INT_MIN, 60 NF_IP6_PRI_CONNTRACK_DEFRAG = -400, 61 NF_IP6_PRI_SELINUX_FIRST = -225, 62 NF_IP6_PRI_CONNTRACK = -200, 63 NF_IP6_PRI_MANGLE = -150, 64 NF_IP6_PRI_NAT_DST = -100, 65 NF_IP6_PRI_FILTER = 0, 66 NF_IP6_PRI_NAT_SRC = 100, 67 NF_IP6_PRI_SELINUX_LAST = 225, 68 NF_IP6_PRI_LAST = INT_MAX, 69 }; 70 71 #ifdef CONFIG_NETFILTER 72 extern int ip6_route_me_harder(struct sk_buff *skb); 73 extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, 74 unsigned int dataoff, u_int8_t protocol); 75 76 extern int ipv6_netfilter_init(void); 77 extern void ipv6_netfilter_fini(void); 78 #else /* CONFIG_NETFILTER */ 79 static __inline__ int ipv6_netfilter_init(void) { return 0; } 80 static __inline__ void ipv6_netfilter_fini(void) { return; } 81 #endif /* CONFIG_NETFILTER */ 82 83 #endif /*__LINUX_IP6_NETFILTER_H*/ 84
