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      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 /* IP6 Hooks */
     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
     55 
     56 
     57 enum nf_ip6_hook_priorities {
     58 	NF_IP6_PRI_FIRST = INT_MIN,
     59 	NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
     60 	NF_IP6_PRI_RAW = -300,
     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_SECURITY = 50,
     67 	NF_IP6_PRI_NAT_SRC = 100,
     68 	NF_IP6_PRI_SELINUX_LAST = 225,
     69 	NF_IP6_PRI_LAST = INT_MAX,
     70 };
     71 
     72 
     73 #endif /*__LINUX_IP6_NETFILTER_H*/
     74