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- --- /dev/null
- +++ b/extensions/libxt_id.c
- @@ -0,0 +1,45 @@
- +/* Shared library add-on to iptables to add id match support. */
- +
- +#include <stdio.h>
- +#include <xtables.h>
- +#include <linux/netfilter/xt_id.h>
- +
- +enum {
- + O_ID = 0,
- +};
- +
- +static const struct xt_option_entry id_opts[] = {
- + {
- + .name = "id",
- + .id = O_ID,
- + .type = XTTYPE_UINT32,
- + .flags = XTOPT_MAND | XTOPT_PUT,
- + XTOPT_POINTER(struct xt_id_info, id)
- + },
- + XTOPT_TABLEEND,
- +};
- +
- +/* Saves the union ipt_matchinfo in parsable form to stdout. */
- +static void
- +id_save(const void *ip, const struct xt_entry_match *match)
- +{
- + struct xt_id_info *idinfo = (void *)match->data;
- +
- + printf(" --id %lu", idinfo->id);
- +}
- +
- +static struct xtables_match id_match = {
- + .family = NFPROTO_UNSPEC,
- + .name = "id",
- + .version = XTABLES_VERSION,
- + .size = XT_ALIGN(sizeof(struct xt_id_info)),
- + .userspacesize = XT_ALIGN(sizeof(struct xt_id_info)),
- + .save = id_save,
- + .x6_parse = xtables_option_parse,
- + .x6_options = id_opts,
- +};
- +
- +void _init(void)
- +{
- + xtables_register_match(&id_match);
- +}
- --- /dev/null
- +++ b/include/linux/netfilter/xt_id.h
- @@ -0,0 +1,8 @@
- +#ifndef _XT_ID_H
- +#define _XT_ID_H
- +
- +struct xt_id_info {
- + __u32 id;
- +};
- +
- +#endif /* XT_ID_H */
|
