package/network/utils/iptables/patches/500-add-xt_id-match.patch

   1 --- /dev/null
   2 +++ b/extensions/libxt_id.c
   3 @@ -0,0 +1,45 @@
   4 +/* Shared library add-on to iptables to add id match support. */
   5 +
   6 +#include <stdio.h>
   7 +#include <xtables.h>
   8 +#include <linux/netfilter/xt_id.h>
   9 +
  10 +enum {
  11 +       O_ID = 0,
  12 +};
  13 +
  14 +static const struct xt_option_entry id_opts[] = {
  15 +       {
  16 +               .name  = "id",
  17 +               .id    = O_ID,
  18 +               .type  = XTTYPE_UINT32,
  19 +               .flags = XTOPT_MAND | XTOPT_PUT,
  20 +               XTOPT_POINTER(struct xt_id_info, id)
  21 +       },
  22 +       XTOPT_TABLEEND,
  23 +};
  24 +
  25 +/* Saves the union ipt_matchinfo in parsable form to stdout. */
  26 +static void
  27 +id_save(const void *ip, const struct xt_entry_match *match)
  28 +{
  29 +       struct xt_id_info *idinfo = (void *)match->data;
  30 +
  31 +       printf(" --id %lu", idinfo->id);
  32 +}
  33 +
  34 +static struct xtables_match id_match = {
  35 +       .family         = NFPROTO_UNSPEC,
  36 +       .name           = "id",
  37 +       .version        = XTABLES_VERSION,
  38 +       .size           = XT_ALIGN(sizeof(struct xt_id_info)),
  39 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_id_info)),
  40 +       .save           = id_save,
  41 +       .x6_parse       = xtables_option_parse,
  42 +       .x6_options     = id_opts,
  43 +};
  44 +
  45 +void _init(void)
  46 +{
  47 +       xtables_register_match(&id_match);
  48 +}
  49 --- /dev/null
  50 +++ b/include/linux/netfilter/xt_id.h
  51 @@ -0,0 +1,8 @@
  52 +#ifndef _XT_ID_H
  53 +#define _XT_ID_H
  54 +
  55 +struct xt_id_info {
  56 +       __u32 id;
  57 +};
  58 +
  59 +#endif /* XT_ID_H */