Release 4.7 net/ipv4/netfilter/iptable_raw.c
/*
* 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT .
*
* Copyright (C) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
*/
#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 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,
};
/* 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)
{
if (state->hook == NF_INET_LOCAL_OUT &&
(skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr)))
/* root is playing with raw sockets. */
return NF_ACCEPT;
return ipt_do_table(skb, state, state->net->ipv4.iptable_raw);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 32 | 43.84% | 2 | 16.67% |
| harald welte | harald welte | 14 | 19.18% | 1 | 8.33% |
| jan engelhardt | jan engelhardt | 10 | 13.70% | 2 | 16.67% |
| eric w. biederman | eric w. biederman | 6 | 8.22% | 3 | 25.00% |
| herbert xu | herbert xu | 4 | 5.48% | 1 | 8.33% |
| alexey dobriyan | alexey dobriyan | 4 | 5.48% | 2 | 16.67% |
| david s. miller | david s. miller | 3 | 4.11% | 1 | 8.33% |
| Total | 73 | 100.00% | 12 | 100.00% |
static struct nf_hook_ops *rawtable_ops __read_mostly;
static int __net_init iptable_raw_table_init(struct net *net)
{
struct ipt_replace *repl;
int ret;
if (net->ipv4.iptable_raw)
return 0;
repl = ipt_alloc_initial_table(&packet_raw);
if (repl == NULL)
return -ENOMEM;
ret = ipt_register_table(net, &packet_raw, repl, rawtable_ops,
&net->ipv4.iptable_raw);
kfree(repl);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jan engelhardt | jan engelhardt | 28 | 35.90% | 1 | 14.29% |
| florian westphal | florian westphal | 26 | 33.33% | 2 | 28.57% |
| harald welte | harald welte | 13 | 16.67% | 2 | 28.57% |
| alexey dobriyan | alexey dobriyan | 11 | 14.10% | 2 | 28.57% |
| Total | 78 | 100.00% | 7 | 100.00% |
static void __net_exit iptable_raw_net_exit(struct net *net)
{
if (!net->ipv4.iptable_raw)
return;
ipt_unregister_table(net, net->ipv4.iptable_raw, rawtable_ops);
net->ipv4.iptable_raw = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alexey dobriyan | alexey dobriyan | 23 | 53.49% | 2 | 50.00% |
| florian westphal | florian westphal | 20 | 46.51% | 2 | 50.00% |
| Total | 43 | 100.00% | 4 | 100.00% |
static struct pernet_operations iptable_raw_net_ops = {
.exit = iptable_raw_net_exit,
};
static int __init iptable_raw_init(void)
{
int ret;
rawtable_ops = xt_hook_ops_alloc(&packet_raw, 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| florian westphal | florian westphal | 39 | 44.83% | 1 | 16.67% |
| alexey dobriyan | alexey dobriyan | 30 | 34.48% | 2 | 33.33% |
| harald welte | harald welte | 15 | 17.24% | 1 | 16.67% |
| jan engelhardt | jan engelhardt | 2 | 2.30% | 1 | 16.67% |
| jean sacren | jean sacren | 1 | 1.15% | 1 | 16.67% |
| Total | 87 | 100.00% | 6 | 100.00% |
static void __exit iptable_raw_fini(void)
{
unregister_pernet_subsys(&iptable_raw_net_ops);
kfree(rawtable_ops);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| harald welte | harald welte | 14 | 70.00% | 1 | 25.00% |
| florian westphal | florian westphal | 4 | 20.00% | 1 | 25.00% |
| andrew morton | andrew morton | 1 | 5.00% | 1 | 25.00% |
| jan engelhardt | jan engelhardt | 1 | 5.00% | 1 | 25.00% |
| Total | 20 | 100.00% | 4 | 100.00% |
module_init(iptable_raw_init);
module_exit(iptable_raw_fini);
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| harald welte | harald welte | 107 | 26.62% | 3 | 10.34% |
| florian westphal | florian westphal | 105 | 26.12% | 2 | 6.90% |
| alexey dobriyan | alexey dobriyan | 81 | 20.15% | 4 | 13.79% |
| jan engelhardt | jan engelhardt | 51 | 12.69% | 7 | 24.14% |
| patrick mchardy | patrick mchardy | 37 | 9.20% | 4 | 13.79% |
| eric w. biederman | eric w. biederman | 6 | 1.49% | 3 | 10.34% |
| herbert xu | herbert xu | 4 | 1.00% | 1 | 3.45% |
| david s. miller | david s. miller | 3 | 0.75% | 1 | 3.45% |
| andrew morton | andrew morton | 3 | 0.75% | 1 | 3.45% |
| tejun heo | tejun heo | 3 | 0.75% | 1 | 3.45% |
| hideaki yoshifuji | hideaki yoshifuji | 1 | 0.25% | 1 | 3.45% |
| jean sacren | jean sacren | 1 | 0.25% | 1 | 3.45% |
| Total | 402 | 100.00% | 29 | 100.00% |
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