Release 4.11 net/netfilter/xt_NFQUEUE.c
/* iptables module for using new netfilter netlink queue
*
* (C) 2005 by Harald Welte <laforge@netfilter.org>
*
* 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.
*
*/
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter.h>
#include <linux/netfilter_arp.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_NFQUEUE.h>
#include <net/netfilter/nf_queue.h>
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("Xtables: packet forwarding to netlink");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_NFQUEUE");
MODULE_ALIAS("ip6t_NFQUEUE");
MODULE_ALIAS("arpt_NFQUEUE");
static u32 jhash_initval __read_mostly;
static unsigned int
nfqueue_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_NFQ_info *tinfo = par->targinfo;
return NF_QUEUE_NR(tinfo->queuenum);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harald Welte | 30 | 83.33% | 2 | 33.33% |
| Jan Engelhardt | 5 | 13.89% | 3 | 50.00% |
| Herbert Xu | 1 | 2.78% | 1 | 16.67% |
| Total | 36 | 100.00% | 6 | 100.00% |
static unsigned int
nfqueue_tg_v1(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_NFQ_info_v1 *info = par->targinfo;
u32 queue = info->queuenum;
if (info->queues_total > 1) {
queue = nfqueue_hash(skb, queue, info->queues_total,
xt_family(par), jhash_initval);
}
return NF_QUEUE_NR(queue);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Holger Eitzenberger | 51 | 71.83% | 1 | 25.00% |
| Eric Leblond | 10 | 14.08% | 1 | 25.00% |
| Florian Westphal | 7 | 9.86% | 1 | 25.00% |
| Pablo Neira Ayuso | 3 | 4.23% | 1 | 25.00% |
| Total | 71 | 100.00% | 4 | 100.00% |
static unsigned int
nfqueue_tg_v2(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_NFQ_info_v2 *info = par->targinfo;
unsigned int ret = nfqueue_tg_v1(skb, par);
if (info->bypass)
ret |= NF_VERDICT_FLAG_QUEUE_BYPASS;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Florian Westphal | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
static int nfqueue_tg_check(const struct xt_tgchk_param *par)
{
const struct xt_NFQ_info_v3 *info = par->targinfo;
u32 maxid;
init_hashrandom(&jhash_initval);
if (info->queues_total == 0) {
pr_err("NFQUEUE: number of total queues is 0\n");
return -EINVAL;
}
maxid = info->queues_total - 1 + info->queuenum;
if (maxid > 0xffff) {
pr_err("NFQUEUE: number of queues (%u) out of range (got %u)\n",
info->queues_total, maxid);
return -ERANGE;
}
if (par->target->revision == 2 && info->flags > 1)
return -EINVAL;
if (par->target->revision == 3 && info->flags & ~NFQ_FLAG_MASK)
return -EINVAL;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Florian Westphal | 92 | 71.32% | 2 | 25.00% |
| Holger Eitzenberger | 23 | 17.83% | 1 | 12.50% |
| Jan Engelhardt | 13 | 10.08% | 4 | 50.00% |
| Eric Leblond | 1 | 0.78% | 1 | 12.50% |
| Total | 129 | 100.00% | 8 | 100.00% |
static unsigned int
nfqueue_tg_v3(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_NFQ_info_v3 *info = par->targinfo;
u32 queue = info->queuenum;
int ret;
if (info->queues_total > 1) {
if (info->flags & NFQ_FLAG_CPU_FANOUT) {
int cpu = smp_processor_id();
queue = info->queuenum + cpu % info->queues_total;
} else {
queue = nfqueue_hash(skb, queue, info->queues_total,
xt_family(par), jhash_initval);
}
}
ret = NF_QUEUE_NR(queue);
if (info->flags & NFQ_FLAG_BYPASS)
ret |= NF_VERDICT_FLAG_QUEUE_BYPASS;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Holger Eitzenberger | 108 | 89.26% | 3 | 60.00% |
| Eric Leblond | 10 | 8.26% | 1 | 20.00% |
| Pablo Neira Ayuso | 3 | 2.48% | 1 | 20.00% |
| Total | 121 | 100.00% | 5 | 100.00% |
static struct xt_target nfqueue_tg_reg[] __read_mostly = {
{
.name = "NFQUEUE",
.family = NFPROTO_UNSPEC,
.target = nfqueue_tg,
.targetsize = sizeof(struct xt_NFQ_info),
.me = THIS_MODULE,
},
{
.name = "NFQUEUE",
.revision = 1,
.family = NFPROTO_UNSPEC,
.checkentry = nfqueue_tg_check,
.target = nfqueue_tg_v1,
.targetsize = sizeof(struct xt_NFQ_info_v1),
.me = THIS_MODULE,
},
{
.name = "NFQUEUE",
.revision = 2,
.family = NFPROTO_UNSPEC,
.checkentry = nfqueue_tg_check,
.target = nfqueue_tg_v2,
.targetsize = sizeof(struct xt_NFQ_info_v2),
.me = THIS_MODULE,
},
{
.name = "NFQUEUE",
.revision = 3,
.family = NFPROTO_UNSPEC,
.checkentry = nfqueue_tg_check,
.target = nfqueue_tg_v3,
.targetsize = sizeof(struct xt_NFQ_info_v3),
.me = THIS_MODULE,
},
};
static int __init nfqueue_tg_init(void)
{
return xt_register_targets(nfqueue_tg_reg, ARRAY_SIZE(nfqueue_tg_reg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harald Welte | 14 | 70.00% | 2 | 50.00% |
| Patrick McHardy | 3 | 15.00% | 1 | 25.00% |
| Jan Engelhardt | 3 | 15.00% | 1 | 25.00% |
| Total | 20 | 100.00% | 4 | 100.00% |
static void __exit nfqueue_tg_exit(void)
{
xt_unregister_targets(nfqueue_tg_reg, ARRAY_SIZE(nfqueue_tg_reg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harald Welte | 13 | 68.42% | 2 | 40.00% |
| Patrick McHardy | 3 | 15.79% | 2 | 40.00% |
| Jan Engelhardt | 3 | 15.79% | 1 | 20.00% |
| Total | 19 | 100.00% | 5 | 100.00% |
module_init(nfqueue_tg_init);
module_exit(nfqueue_tg_exit);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Florian Westphal | 237 | 34.96% | 3 | 12.00% |
| Holger Eitzenberger | 223 | 32.89% | 3 | 12.00% |
| Harald Welte | 134 | 19.76% | 2 | 8.00% |
| Jan Engelhardt | 32 | 4.72% | 9 | 36.00% |
| Eric Leblond | 24 | 3.54% | 1 | 4.00% |
| Patrick McHardy | 20 | 2.95% | 4 | 16.00% |
| Pablo Neira Ayuso | 6 | 0.88% | 1 | 4.00% |
| Hideaki Yoshifuji / 吉藤英明 | 1 | 0.15% | 1 | 4.00% |
| Herbert Xu | 1 | 0.15% | 1 | 4.00% |
| Total | 678 | 100.00% | 25 | 100.00% |
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