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Sourcecode: ebtables version File versions  Download package

ebt_standard.c

#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include "../include/ebtables_u.h"

static struct option opts[] =
{
      {0}
};

static void print_help()
{
      printf("Standard targets: DROP, ACCEPT, RETURN or CONTINUE;\n"
             "The target can also be a user defined chain.\n");
}

static void init(struct ebt_entry_target *t)
{
      ((struct ebt_standard_target *)t)->verdict = EBT_CONTINUE;
}

static int parse(int c, char **argv, int argc, const struct ebt_u_entry *entry,
   unsigned int *flags, struct ebt_entry_target **target)
{
      return 0;
}

static void final_check(const struct ebt_u_entry *entry,
   const struct ebt_entry_target *target, const char *name,
   unsigned int hookmask, unsigned int time)
{
}

struct ebt_u_entries *nr_to_chain(int nr);

static void print(const struct ebt_u_entry *entry,
   const struct ebt_entry_target *target)
{
      int verdict = ((struct ebt_standard_target *)target)->verdict;

      if (verdict >= 0) {
            struct ebt_u_entries *entries;

            entries = nr_to_chain(verdict + NF_BR_NUMHOOKS);
            printf("%s", entries->name);
            return;
      }
      if (verdict == EBT_CONTINUE)
            printf("CONTINUE ");
      else if (verdict == EBT_ACCEPT)
            printf("ACCEPT ");
      else if (verdict == EBT_DROP)
            printf("DROP ");
      else if (verdict == EBT_RETURN)
            printf("RETURN ");
      else
            print_bug("Bad standard target");
}

static int compare(const struct ebt_entry_target *t1,
   const struct ebt_entry_target *t2)
{
      return ((struct ebt_standard_target *)t1)->verdict ==
         ((struct ebt_standard_target *)t2)->verdict;
}

static struct ebt_u_target standard =
{
      .name       = EBT_STANDARD_TARGET,
      .size       = sizeof(struct ebt_standard_target) -
                    sizeof(struct ebt_entry_target),
      .help       = print_help,
      .init       = init,
      .parse            = parse,
      .final_check      = final_check,
      .print            = print,
      .compare    = compare,
      .extra_ops  = opts,
};

static void _init(void) __attribute__ ((constructor));
static void _init(void)
{
      register_target(&standard);
}

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