userapps/opensource/ebtables/extensions/ebtable_nat.c

   1 #include <stdio.h>
   2 #include "../include/ebtables_u.h"
   3
   4 #define NAT_VALID_HOOKS ((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT) | \
   5    (1 << NF_BR_POST_ROUTING))
   6
   7 static void print_help(char **hn)
   8 {
   9         int i;
  10
  11         printf("Supported chains for the nat table:\n");
  12         for (i = 0; i < NF_BR_NUMHOOKS; i++)
  13                 if (NAT_VALID_HOOKS & (1 << i))
  14                         printf("%s ", hn[i]);
  15         printf("\n");
  16 }
  17
  18 static struct
  19 ebt_u_table table =
  20 {
  21         .name           = "nat",
  22         .help           = print_help,
  23 };
  24
  25 static void _init(void) __attribute__ ((constructor));
  26 static void _init(void)
  27 {
  28         register_table(&table);
  29 }