/usr/src/xtables-addons-2.12/extensions/libxt_gradm.c is in xtables-addons-dkms 2.12-0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*
* "gradm" match extension for iptables
* Zbigniew Krzystolik <zbyniu@destrukcja.pl>, 2010
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License;
* either version 2 of the License, or any later version, as
* published by the Free Software Foundation.
*/
#include <getopt.h>
#include <netdb.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <xtables.h>
#include "xt_gradm.h"
#include "compat_user.h"
static void gradm_mt_help(void)
{
printf(
"gradm match options:\n"
" [!] --enabled is Grsecurity RBAC enabled\n"
" [!] --disabled is Grsecurity RBAC disabled\n");
};
static const struct option gradm_mt_opts[] = {
{.name = "enabled", .has_arg = false, .val = '1'},
{.name = "disabled", .has_arg = false, .val = '2'},
{NULL},
};
static void gradm_mt_init(struct xt_entry_match *m)
{
}
static int gradm_mt_parse(int c, char **argv, int invert, unsigned int *flags,
const void *entry, struct xt_entry_match **match)
{
struct xt_gradm_mtinfo *info = (void *)(*match)->data;
switch (c) {
case '1':
if (invert)
info->invflags |= 1;
return true;
case '2':
if (!invert)
info->invflags |= 1;
return true;
}
return false;
}
static void gradm_mt_check(unsigned int flags)
{
}
static void gradm_mt_save(const void *ip, const struct xt_entry_match *match)
{
const struct xt_gradm_mtinfo *info = (const void *)match->data;
if (info->invflags)
printf(" --disabled ");
else
printf(" --enabled ");
}
static void gradm_mt_print(const void *ip, const struct xt_entry_match *match,
int numeric)
{
printf(" -m gradm");
gradm_mt_save(ip, match);
}
static struct xtables_match gradm_mt_reg = {
.family = NFPROTO_UNSPEC,
.name = "gradm",
.version = XTABLES_VERSION,
.size = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
.userspacesize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
.help = gradm_mt_help,
.init = gradm_mt_init,
.parse = gradm_mt_parse,
.final_check = gradm_mt_check,
.print = gradm_mt_print,
.save = gradm_mt_save,
.extra_opts = gradm_mt_opts,
};
static __attribute__((constructor)) void gradm_mt_ldr(void)
{
xtables_register_match(&gradm_mt_reg);
}
|