Release 4.8 net/netfilter/xt_REDIRECT.c
/*
* (C) 1999-2001 Paul `Rusty' Russell
* (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
* Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Based on Rusty Russell's IPv4 REDIRECT target. Development of IPv6
* NAT funded by Astaro.
*/
#include <linux/if.h>
#include <linux/inetdevice.h>
#include <linux/ip.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/netfilter.h>
#include <linux/types.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter/x_tables.h>
#include <net/addrconf.h>
#include <net/checksum.h>
#include <net/protocol.h>
#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_nat_redirect.h>
static unsigned int
redirect_tg6(struct sk_buff *skb, const struct xt_action_param *par)
{
return nf_nat_redirect_ipv6(skb, par->targinfo, par->hooknum);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jan engelhardt | jan engelhardt | 26 | 81.25% | 1 | 33.33% |
| arturo borrero gonzalez | arturo borrero gonzalez | 5 | 15.62% | 1 | 33.33% |
| harald welte | harald welte | 1 | 3.12% | 1 | 33.33% |
| Total | 32 | 100.00% | 3 | 100.00% |
static int redirect_tg6_checkentry(const struct xt_tgchk_param *par)
{
const struct nf_nat_range *range = par->targinfo;
if (range->flags & NF_NAT_RANGE_MAP_IPS)
return -EINVAL;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jan engelhardt | jan engelhardt | 37 | 100.00% | 1 | 100.00% |
| Total | 37 | 100.00% | 1 | 100.00% |
/* FIXME: Take multiple ranges --RR */
static int redirect_tg4_check(const struct xt_tgchk_param *par)
{
const struct nf_nat_ipv4_multi_range_compat *mr = par->targinfo;
if (mr->range[0].flags & NF_NAT_RANGE_MAP_IPS) {
pr_debug("bad MAP_IPS.\n");
return -EINVAL;
}
if (mr->rangesize != 1) {
pr_debug("bad rangesize %u.\n", mr->rangesize);
return -EINVAL;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 54 | 75.00% | 1 | 11.11% |
| jan engelhardt | jan engelhardt | 13 | 18.06% | 5 | 55.56% |
| patrick mchardy | patrick mchardy | 5 | 6.94% | 3 | 33.33% |
| Total | 72 | 100.00% | 9 | 100.00% |
static unsigned int
redirect_tg4(struct sk_buff *skb, const struct xt_action_param *par)
{
return nf_nat_redirect_ipv4(skb, par->targinfo, par->hooknum);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 19 | 59.38% | 1 | 14.29% |
| jan engelhardt | jan engelhardt | 5 | 15.62% | 3 | 42.86% |
| arturo borrero gonzalez | arturo borrero gonzalez | 5 | 15.62% | 1 | 14.29% |
| herbert xu | herbert xu | 2 | 6.25% | 1 | 14.29% |
| patrick mchardy | patrick mchardy | 1 | 3.12% | 1 | 14.29% |
| Total | 32 | 100.00% | 7 | 100.00% |
static struct xt_target redirect_tg_reg[] __read_mostly = {
{
.name = "REDIRECT",
.family = NFPROTO_IPV6,
.revision = 0,
.table = "nat",
.checkentry = redirect_tg6_checkentry,
.target = redirect_tg6,
.targetsize = sizeof(struct nf_nat_range),
.hooks = (1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_LOCAL_OUT),
.me = THIS_MODULE,
},
{
.name = "REDIRECT",
.family = NFPROTO_IPV4,
.revision = 0,
.table = "nat",
.target = redirect_tg4,
.checkentry = redirect_tg4_check,
.targetsize = sizeof(struct nf_nat_ipv4_multi_range_compat),
.hooks = (1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_LOCAL_OUT),
.me = THIS_MODULE,
},
};
static int __init redirect_tg_init(void)
{
return xt_register_targets(redirect_tg_reg,
ARRAY_SIZE(redirect_tg_reg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 12 | 60.00% | 1 | 33.33% |
| jan engelhardt | jan engelhardt | 8 | 40.00% | 2 | 66.67% |
| Total | 20 | 100.00% | 3 | 100.00% |
static void __exit redirect_tg_exit(void)
{
xt_unregister_targets(redirect_tg_reg, ARRAY_SIZE(redirect_tg_reg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 11 | 57.89% | 1 | 33.33% |
| jan engelhardt | jan engelhardt | 8 | 42.11% | 2 | 66.67% |
| Total | 19 | 100.00% | 3 | 100.00% |
module_init(redirect_tg_init);
module_exit(redirect_tg_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
MODULE_DESCRIPTION("Xtables: Connection redirection to localhost");
MODULE_ALIAS("ip6t_REDIRECT");
MODULE_ALIAS("ipt_REDIRECT");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jan engelhardt | jan engelhardt | 225 | 52.57% | 9 | 37.50% |
| pre-git | pre-git | 139 | 32.48% | 1 | 4.17% |
| patrick mchardy | patrick mchardy | 36 | 8.41% | 7 | 29.17% |
| arturo borrero gonzalez | arturo borrero gonzalez | 12 | 2.80% | 2 | 8.33% |
| art haas | art haas | 10 | 2.34% | 1 | 4.17% |
| herbert xu | herbert xu | 2 | 0.47% | 1 | 4.17% |
| jozsef kadlecsik | jozsef kadlecsik | 2 | 0.47% | 1 | 4.17% |
| harald welte | harald welte | 1 | 0.23% | 1 | 4.17% |
| pablo neira ayuso | pablo neira ayuso | 1 | 0.23% | 1 | 4.17% |
| Total | 428 | 100.00% | 24 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.