mirror of
git://git.code.sf.net/p/xtables-addons/xtables-addons
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96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/*
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* "gradm" match extension for iptables
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* Zbigniew Krzystolik <zbyniu@destrukcja.pl>, 2010
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License;
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* either version 2 of the License, or any later version, as
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* published by the Free Software Foundation.
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*/
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#include <getopt.h>
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#include <netdb.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <xtables.h>
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#include "xt_gradm.h"
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#include "compat_user.h"
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static void gradm_mt_help(void)
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{
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printf(
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"gradm match options:\n"
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" [!] --enabled is Grsecurity RBAC enabled\n"
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" [!] --disabled is Grsecurity RBAC disabled\n");
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};
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static const struct option gradm_mt_opts[] = {
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{.name = "enabled", .has_arg = false, .val = '1'},
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{.name = "disabled", .has_arg = false, .val = '2'},
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{NULL},
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};
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static void gradm_mt_init(struct xt_entry_match *m)
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{
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}
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static int gradm_mt_parse(int c, char **argv, int invert, unsigned int *flags,
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const void *entry, struct xt_entry_match **match)
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{
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struct xt_gradm_mtinfo *info = (void *)(*match)->data;
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switch (c) {
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case '1':
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if (invert)
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info->invflags |= 1;
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return true;
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case '2':
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if (!invert)
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info->invflags |= 1;
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return true;
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}
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return false;
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}
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static void gradm_mt_check(unsigned int flags)
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{
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}
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static void gradm_mt_save(const void *ip, const struct xt_entry_match *match)
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{
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const struct xt_gradm_mtinfo *info = (const void *)match->data;
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if (info->invflags)
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printf(" --disabled ");
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else
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printf(" --enabled ");
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}
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static void gradm_mt_print(const void *ip, const struct xt_entry_match *match,
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int numeric)
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{
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printf(" -m gradm");
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gradm_mt_save(ip, match);
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}
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static struct xtables_match gradm_mt_reg = {
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.family = NFPROTO_UNSPEC,
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.name = "gradm",
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.version = XTABLES_VERSION,
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.size = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
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.userspacesize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
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.help = gradm_mt_help,
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.init = gradm_mt_init,
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.parse = gradm_mt_parse,
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.final_check = gradm_mt_check,
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.print = gradm_mt_print,
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.save = gradm_mt_save,
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.extra_opts = gradm_mt_opts,
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};
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static __attribute__((constructor)) void gradm_mt_ldr(void)
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{
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xtables_register_match(&gradm_mt_reg);
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}
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