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 #ifndef __KERNEL__ 15 /* IP Cache bits. */ 16 /* Src IP address. */ 17 #define NFC_IP6_SRC 0x0001 18 /* Dest IP address. */ 19 #define NFC_IP6_DST 0x0002 20 /* Input device. */ 21 #define NFC_IP6_IF_IN 0x0004 22 /* Output device. */ 23 #define NFC_IP6_IF_OUT 0x0008 24 /* TOS. */ 25 #define NFC_IP6_TOS 0x0010 26 /* Protocol. */ 27 #define NFC_IP6_PROTO 0x0020 28 /* IP options. */ 29 #define NFC_IP6_OPTIONS 0x0040 30 /* Frag & flags. */ 31 #define NFC_IP6_FRAG 0x0080 32 33 34 /* Per-protocol information: only matters if proto match. */ 35 /* TCP flags. */ 36 #define NFC_IP6_TCPFLAGS 0x0100 37 /* Source port. */ 38 #define NFC_IP6_SRC_PT 0x0200 39 /* Dest port. */ 40 #define NFC_IP6_DST_PT 0x0400 41 /* Something else about the proto */ 42 #define NFC_IP6_PROTO_UNKNOWN 0x2000 43 #endif /* ! __KERNEL__ */ 44 45 46 /* IP6 Hooks */ 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 58 59 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_BRIDGE_SABOTAGE_FORWARD = -175, 66 NF_IP6_PRI_MANGLE = -150, 67 NF_IP6_PRI_NAT_DST = -100, 68 NF_IP6_PRI_BRIDGE_SABOTAGE_LOCAL_OUT = -50, 69 NF_IP6_PRI_FILTER = 0, 70 NF_IP6_PRI_NAT_SRC = 100, 71 NF_IP6_PRI_SELINUX_LAST = 225, 72 NF_IP6_PRI_LAST = INT_MAX, 73 }; 74 75 #ifdef CONFIG_NETFILTER 76 extern unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, 77 unsigned int dataoff, u_int8_t protocol); 78 79 extern int ipv6_netfilter_init(void); 80 extern void ipv6_netfilter_fini(void); 81 #else /* CONFIG_NETFILTER */ 82 static inline int ipv6_netfilter_init(void) { return 0; } 83 static inline void ipv6_netfilter_fini(void) { return; } 84 #endif /* CONFIG_NETFILTER */ 85 86 #endif /*__LINUX_IP6_NETFILTER_H*/ 87
