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

   1 --- /dev/null
   2 +++ b/extensions/libxt_id.c
   3 @@ -0,0 +1,55 @@
   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 +static void
  26 +id_print(const void *ip, const struct xt_entry_match *match, int numeric)
  27 +{
  28 +       struct xt_id_info *idinfo = (void *)match->data;
  29 +
  30 +       printf(" ID:%08lx", idinfo->id);
  31 +}
  32 +
  33 +
  34 +/* Saves the union ipt_matchinfo in parsable form to stdout. */
  35 +static void
  36 +id_save(const void *ip, const struct xt_entry_match *match)
  37 +{
  38 +       struct xt_id_info *idinfo = (void *)match->data;
  39 +
  40 +       printf(" --id 0x%lx", idinfo->id);
  41 +}
  42 +
  43 +static struct xtables_match id_match = {
  44 +       .family         = NFPROTO_UNSPEC,
  45 +       .name           = "id",
  46 +       .version        = XTABLES_VERSION,
  47 +       .size           = XT_ALIGN(sizeof(struct xt_id_info)),
  48 +       .userspacesize  = XT_ALIGN(sizeof(struct xt_id_info)),
  49 +       .print          = id_print,
  50 +       .save           = id_save,
  51 +       .x6_parse       = xtables_option_parse,
  52 +       .x6_options     = id_opts,
  53 +};
  54 +
  55 +void _init(void)
  56 +{
  57 +       xtables_register_match(&id_match);
  58 +}
  59 --- /dev/null
  60 +++ b/include/linux/netfilter/xt_id.h
  61 @@ -0,0 +1,8 @@
  62 +#ifndef _XT_ID_H
  63 +#define _XT_ID_H
  64 +
  65 +struct xt_id_info {
  66 +       __u32 id;
  67 +};
  68 +
  69 +#endif /* XT_ID_H */