release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/linux/netfilter.h

   1 #ifndef __LINUX_NETFILTER_H
   2 #define __LINUX_NETFILTER_H
   3
   4 #include <linux/types.h>
   5
   6
   7 /* Responses from hook functions. */
   8 #define NF_DROP 0
   9 #define NF_ACCEPT 1
  10 #define NF_STOLEN 2
  11 #define NF_QUEUE 3
  12 #define NF_REPEAT 4
  13 #define NF_STOP 5
  14 #define NF_MAX_VERDICT NF_STOP
  15
  16 /* we overload the higher bits for encoding auxiliary data such as the queue
  17  * number. Not nice, but better than additional function arguments. */
  18 #define NF_VERDICT_MASK 0x0000ffff
  19 #define NF_VERDICT_BITS 16
  20
  21 #define NF_VERDICT_QMASK 0xffff0000
  22 #define NF_VERDICT_QBITS 16
  23
  24 #define NF_QUEUE_NR(x) ((((x) << NF_VERDICT_BITS) & NF_VERDICT_QMASK) | NF_QUEUE)
  25
  26 /* only for userspace compatibility */
  27 /* Generic cache responses from hook functions.
  28    <= 0x2000 is used for protocol-flags. */
  29 #define NFC_UNKNOWN 0x4000
  30 #define NFC_ALTERED 0x8000
  31
  32 enum nf_inet_hooks {
  33         NF_INET_PRE_ROUTING,
  34         NF_INET_LOCAL_IN,
  35         NF_INET_FORWARD,
  36         NF_INET_LOCAL_OUT,
  37         NF_INET_POST_ROUTING,
  38         NF_INET_NUMHOOKS
  39 };
  40
  41 enum {
  42         NFPROTO_UNSPEC =  0,
  43         NFPROTO_IPV4   =  2,
  44         NFPROTO_ARP    =  3,
  45         NFPROTO_BRIDGE =  7,
  46         NFPROTO_IPV6   = 10,
  47         NFPROTO_DECNET = 12,
  48         NFPROTO_NUMPROTO,
  49 };
  50
  51 union nf_inet_addr {
  52         __u32           all[4];
  53         __be32          ip;
  54         __be32          ip6[4];
  55         struct in_addr  in;
  56         struct in6_addr in6;
  57 };
  58
  59 #endif /*__LINUX_NETFILTER_H*/