Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Harald Welte |
107 |
20.98% |
3 |
9.68% |
| Florian Westphal |
101 |
19.80% |
2 |
6.45% |
| Alexey Dobriyan |
78 |
15.29% |
4 |
12.90% |
| Arnd Bergmann |
72 |
14.12% |
1 |
3.23% |
| Subash Abhinov Kasiviswanathan |
41 |
8.04% |
1 |
3.23% |
| Jan Engelhardt |
40 |
7.84% |
6 |
19.35% |
| David J. Wilder |
39 |
7.65% |
1 |
3.23% |
| Patrick McHardy |
14 |
2.75% |
4 |
12.90% |
| Eric W. Biedermann |
4 |
0.78% |
2 |
6.45% |
| David S. Miller |
3 |
0.59% |
1 |
3.23% |
| Andrew Morton |
3 |
0.59% |
1 |
3.23% |
| Tejun Heo |
3 |
0.59% |
1 |
3.23% |
| Herbert Xu |
2 |
0.39% |
1 |
3.23% |
| Jean Sacren |
1 |
0.20% |
1 |
3.23% |
| Thomas Gleixner |
1 |
0.20% |
1 |
3.23% |
| Jozsef Kadlecsik |
1 |
0.20% |
1 |
3.23% |
| Total |
510 |
|
31 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT .
*
* Copyright (C) 2003 Jozsef Kadlecsik <kadlec@netfilter.org>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/slab.h>
#include <net/ip.h>
#define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))
static int __net_init iptable_raw_table_init(struct net *net);
static bool raw_before_defrag __read_mostly;
MODULE_PARM_DESC(raw_before_defrag, "Enable raw table before defrag");
module_param(raw_before_defrag, bool, 0000);
static const struct xt_table packet_raw = {
.name = "raw",
.valid_hooks = RAW_VALID_HOOKS,
.me = THIS_MODULE,
.af = NFPROTO_IPV4,
.priority = NF_IP_PRI_RAW,
.table_init = iptable_raw_table_init,
};
static const struct xt_table packet_raw_before_defrag = {
.name = "raw",
.valid_hooks = RAW_VALID_HOOKS,
.me = THIS_MODULE,
.af = NFPROTO_IPV4,
.priority = NF_IP_PRI_RAW_BEFORE_DEFRAG,
.table_init = iptable_raw_table_init,
};
/* The work comes in here from netfilter.c. */
static unsigned int
iptable_raw_hook(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state)
{
return ipt_do_table(skb, state, state->net->ipv4.iptable_raw);
}
static struct nf_hook_ops *rawtable_ops __read_mostly;
static int __net_init iptable_raw_table_init(struct net *net)
{
struct ipt_replace *repl;
const struct xt_table *table = &packet_raw;
int ret;
if (raw_before_defrag)
table = &packet_raw_before_defrag;
if (net->ipv4.iptable_raw)
return 0;
repl = ipt_alloc_initial_table(table);
if (repl == NULL)
return -ENOMEM;
ret = ipt_register_table(net, table, repl, rawtable_ops,
&net->ipv4.iptable_raw);
kfree(repl);
return ret;
}
static void __net_exit iptable_raw_net_pre_exit(struct net *net)
{
if (net->ipv4.iptable_raw)
ipt_unregister_table_pre_exit(net, net->ipv4.iptable_raw,
rawtable_ops);
}
static void __net_exit iptable_raw_net_exit(struct net *net)
{
if (!net->ipv4.iptable_raw)
return;
ipt_unregister_table_exit(net, net->ipv4.iptable_raw);
net->ipv4.iptable_raw = NULL;
}
static struct pernet_operations iptable_raw_net_ops = {
.pre_exit = iptable_raw_net_pre_exit,
.exit = iptable_raw_net_exit,
};
static int __init iptable_raw_init(void)
{
int ret;
const struct xt_table *table = &packet_raw;
if (raw_before_defrag) {
table = &packet_raw_before_defrag;
pr_info("Enabling raw table before defrag\n");
}
rawtable_ops = xt_hook_ops_alloc(table, iptable_raw_hook);
if (IS_ERR(rawtable_ops))
return PTR_ERR(rawtable_ops);
ret = register_pernet_subsys(&iptable_raw_net_ops);
if (ret < 0) {
kfree(rawtable_ops);
return ret;
}
ret = iptable_raw_table_init(&init_net);
if (ret) {
unregister_pernet_subsys(&iptable_raw_net_ops);
kfree(rawtable_ops);
}
return ret;
}
static void __exit iptable_raw_fini(void)
{
unregister_pernet_subsys(&iptable_raw_net_ops);
kfree(rawtable_ops);
}
module_init(iptable_raw_init);
module_exit(iptable_raw_fini);
MODULE_LICENSE("GPL");