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Name	Size	Permission
ACCOUNT	[ DIR ]	drwxr-xr-x
pknock	[ DIR ]	drwxr-xr-x
Kbuild	1020 B	-rw-r--r--
Makefile	14.31 KB	-rw-r--r--
Makefile.am	910 B	-rw-r--r--
Makefile.in	13.55 KB	-rw-r--r--
Mbuild	989 B	-rw-r--r--
compat_skbuff.h	325 B	-rw-r--r--
compat_user.h	262 B	-rw-r--r--
compat_xtables.c	1.18 KB	-rw-r--r--
compat_xtables.h	2.52 KB	-rw-r--r--
compat_xtnu.h	1.97 KB	-rw-r--r--
libxt_CHAOS.c	2.56 KB	-rw-r--r--
libxt_CHAOS.man	1 KB	-rw-r--r--
libxt_DELUDE.c	1.11 KB	-rw-r--r--
libxt_DELUDE.man	286 B	-rw-r--r--
libxt_DHCPMAC.c	2.55 KB	-rw-r--r--
libxt_DHCPMAC.man	1.2 KB	-rw-r--r--
libxt_DNETMAP.c	6.62 KB	-rw-r--r--
libxt_DNETMAP.man	7.71 KB	-rw-r--r--
libxt_ECHO.c	1.03 KB	-rw-r--r--
libxt_ECHO.man	141 B	-rw-r--r--
libxt_IPMARK.c	4.71 KB	-rw-r--r--
libxt_IPMARK.man	1.99 KB	-rw-r--r--
libxt_LOGMARK.c	3.27 KB	-rw-r--r--
libxt_LOGMARK.man	312 B	-rw-r--r--
libxt_SYSRQ.c	844 B	-rw-r--r--
libxt_SYSRQ.man	3.67 KB	-rw-r--r--
libxt_TARPIT.c	2.75 KB	-rw-r--r--
libxt_TARPIT.man	2.55 KB	-rw-r--r--
libxt_condition.c	2.5 KB	-rw-r--r--
libxt_condition.man	175 B	-rw-r--r--
libxt_dhcpmac.c	2.52 KB	-rw-r--r--
libxt_dhcpmac.man	207 B	-rw-r--r--
libxt_fuzzy.c	3.37 KB	-rw-r--r--
libxt_fuzzy.man	263 B	-rw-r--r--
libxt_geoip.c	8.21 KB	-rw-r--r--
libxt_geoip.man	1 KB	-rw-r--r--
libxt_gradm.c	2.3 KB	-rw-r--r--
libxt_gradm.man	225 B	-rw-r--r--
libxt_iface.c	7.21 KB	-rw-r--r--
libxt_iface.man	1.39 KB	-rw-r--r--
libxt_ipp2p.c	7.36 KB	-rw-r--r--
libxt_ipp2p.man	1.52 KB	-rw-r--r--
libxt_ipv4options.c	4.32 KB	-rw-r--r--
libxt_ipv4options.man	1.44 KB	-rw-r--r--
libxt_length2.c	4.69 KB	-rw-r--r--
libxt_length2.man	695 B	-rw-r--r--
libxt_lscan.c	2.64 KB	-rw-r--r--
libxt_lscan.man	1.58 KB	-rw-r--r--
libxt_psd.c	5.34 KB	-rw-r--r--
libxt_psd.man	720 B	-rw-r--r--
libxt_quota2.c	4.06 KB	-rw-r--r--
libxt_quota2.man	1.6 KB	-rw-r--r--
mac.c	572 B	-rw-r--r--
xt_CHAOS.c	6.29 KB	-rw-r--r--
xt_CHAOS.h	249 B	-rw-r--r--
xt_DELUDE.c	4.96 KB	-rw-r--r--
xt_DHCPMAC.c	4.18 KB	-rw-r--r--
xt_DHCPMAC.h	311 B	-rw-r--r--
xt_DNETMAP.c	25.22 KB	-rw-r--r--
xt_DNETMAP.h	402 B	-rw-r--r--
xt_ECHO.c	6.98 KB	-rw-r--r--
xt_IPMARK.c	2.75 KB	-rw-r--r--
xt_IPMARK.h	252 B	-rw-r--r--
xt_LOGMARK.c	3.96 KB	-rw-r--r--
xt_LOGMARK.h	209 B	-rw-r--r--
xt_SYSRQ.c	9.75 KB	-rw-r--r--
xt_TARPIT.c	14.94 KB	-rw-r--r--
xt_TARPIT.h	258 B	-rw-r--r--
xt_condition.c	6.75 KB	-rw-r--r--
xt_condition.h	276 B	-rw-r--r--
xt_fuzzy.c	4.65 KB	-rw-r--r--
xt_fuzzy.h	397 B	-rw-r--r--
xt_geoip.c	8.73 KB	-rw-r--r--
xt_geoip.h	1.34 KB	-rw-r--r--
xt_gradm.h	108 B	-rw-r--r--
xt_iface.c	3.32 KB	-rw-r--r--
xt_iface.h	596 B	-rw-r--r--
xt_ipp2p.c	23.63 KB	-rw-r--r--
xt_ipp2p.h	995 B	-rw-r--r--
xt_ipv4options.c	1.96 KB	-rw-r--r--
xt_ipv4options.h	581 B	-rw-r--r--
xt_length2.c	6.99 KB	-rw-r--r--
xt_length2.h	457 B	-rw-r--r--
xt_lscan.c	7.85 KB	-rw-r--r--
xt_lscan.h	200 B	-rw-r--r--
xt_psd.c	14.2 KB	-rw-r--r--
xt_psd.h	792 B	-rw-r--r--
xt_quota2.c	9 KB	-rw-r--r--
xt_quota2.h	478 B	-rw-r--r--

Code Editor : libxt_quota2.c

/*
 *	"quota2" match extension for iptables
 *	Sam Johnston <samj [at] samj net>
 *	Jan Engelhardt, 2008
 *
 *	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 <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <xtables.h>
#include "xt_quota2.h"
#include "compat_user.h"

enum {
	FL_QUOTA     = 1 << 0,
	FL_NAME      = 1 << 1,
	FL_GROW      = 1 << 2,
	FL_PACKET    = 1 << 3,
	FL_NO_CHANGE = 1 << 4,
};

static const struct option quota_mt2_opts[] = {
	{.name = "grow",      .has_arg = false, .val = 'g'},
	{.name = "no-change", .has_arg = false, .val = 'c'},
	{.name = "name",      .has_arg = true,  .val = 'n'},
	{.name = "quota",     .has_arg = true,  .val = 'q'},
	{.name = "packets",   .has_arg = false, .val = 'p'},
	{NULL},
};

static void quota_mt2_help(void)
{
	printf(
	"quota match options:\n"
	"    --grow           provide an increasing counter\n"
	"    --no-change      never change counter/quota value for matching packets\n"
	"    --name name      name for the file in sysfs\n"
	"[!] --quota quota    initial quota (bytes or packets)\n"
	"    --packets        count packets instead of bytes\n"
	);
}

static int
quota_mt2_parse(int c, char **argv, int invert, unsigned int *flags,
	        const void *entry, struct xt_entry_match **match)
{
	struct xt_quota_mtinfo2 *info = (void *)(*match)->data;
	char *end;

switch (c) {
	case 'g':
		xtables_param_act(XTF_ONLY_ONCE, "quota", "--grow", *flags & FL_GROW);
		xtables_param_act(XTF_NO_INVERT, "quota", "--grow", invert);
		info->flags |= XT_QUOTA_GROW;
		*flags |= FL_GROW;
		return true;
	case 'c': /* no-change */
		xtables_param_act(XTF_ONLY_ONCE, "quota", "--no-change", *flags & FL_NO_CHANGE);
		xtables_param_act(XTF_NO_INVERT, "quota", "--no-change", invert);
		info->flags |= XT_QUOTA_NO_CHANGE;
		*flags |= FL_NO_CHANGE;
		return true;
	case 'n':
		/* zero termination done on behalf of the kernel module */
		xtables_param_act(XTF_ONLY_ONCE, "quota", "--name", *flags & FL_NAME);
		xtables_param_act(XTF_NO_INVERT, "quota", "--name", invert);
		strncpy(info->name, optarg, sizeof(info->name));
		*flags |= FL_NAME;
		return true;
	case 'p':
		xtables_param_act(XTF_ONLY_ONCE, "quota", "--packets", *flags & FL_PACKET);
		xtables_param_act(XTF_NO_INVERT, "quota", "--packets", invert);
		info->flags |= XT_QUOTA_PACKET;
		*flags |= FL_PACKET;
		return true;
	case 'q':
		xtables_param_act(XTF_ONLY_ONCE, "quota", "--quota", *flags & FL_QUOTA);
		if (invert)
			info->flags |= XT_QUOTA_INVERT;
		info->quota = strtoull(optarg, &end, 0);
		if (*end != '\0')
			xtables_error(PARAMETER_PROBLEM, "quota match: "
			           "invalid value for --quota");
		*flags |= FL_QUOTA;
		return true;
	}
	return false;
}

static void
quota_mt2_save(const void *ip, const struct xt_entry_match *match)
{
	const struct xt_quota_mtinfo2 *q = (void *)match->data;

if (q->flags & XT_QUOTA_GROW)
		printf(" --grow ");
	if (q->flags & XT_QUOTA_NO_CHANGE)
		printf(" --no-change ");
	if (q->flags & XT_QUOTA_PACKET)
		printf(" --packets ");
	if (*q->name != '\0')
		printf(" --name %s ", q->name);
	if (q->flags & XT_QUOTA_INVERT)
		printf(" !");
	printf(" --quota %llu ", (unsigned long long)q->quota);
}

static void quota_mt2_print(const void *ip, const struct xt_entry_match *match,
                            int numeric)
{
	printf(" -m quota");
	quota_mt2_save(ip, match);
}

static struct xtables_match quota_mt2_reg = {
	.family        = NFPROTO_UNSPEC,
	.revision      = 3,
	.name          = "quota2",
	.version       = XTABLES_VERSION,
	.size          = XT_ALIGN(sizeof (struct xt_quota_mtinfo2)),
	.userspacesize = offsetof(struct xt_quota_mtinfo2, quota),
	.help          = quota_mt2_help,
	.parse         = quota_mt2_parse,
	.print         = quota_mt2_print,
	.save          = quota_mt2_save,
	.extra_opts    = quota_mt2_opts,
};

static __attribute__((constructor)) void quota2_mt_ldr(void)
{
	xtables_register_match(&quota_mt2_reg);
}

${this.title}

Code Editor : libxt_quota2.c