Release 4.8 net/netfilter/nf_conntrack_standalone.c

/* (C) 1999-2001 Paul `Rusty' Russell
 * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
 * (C) 2005-2012 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.
 */

#include <linux/types.h>
#include <linux/netfilter.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/percpu.h>
#include <linux/netdevice.h>
#include <linux/security.h>
#include <net/net_namespace.h>
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
#endif

#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_acct.h>
#include <net/netfilter/nf_conntrack_zones.h>
#include <net/netfilter/nf_conntrack_timestamp.h>
#include <linux/rculist_nulls.h>

MODULE_LICENSE("GPL");

#ifdef CONFIG_NF_CONNTRACK_PROCFS

void

print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
            const struct nf_conntrack_l3proto *l3proto,
            const struct nf_conntrack_l4proto *l4proto)
{
	l3proto->print_tuple(s, tuple);
	l4proto->print_tuple(s, tuple);
}
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yasuyuki kozakai
38
82.61%
1
25.00%
joe perches
joe perches
3
6.52%
1
25.00%
martin josefsson
martin josefsson
3
6.52%
1
25.00%
jan engelhardt
jan engelhardt
2
4.35%
1
25.00%
Total
46
100.00%
4
100.00%


EXPORT_SYMBOL_GPL(print_tuple);


struct ct_iter_state {
	
struct seq_net_private p;
	
struct hlist_nulls_head *hash;
	
unsigned int htable_size;
	
unsigned int bucket;
	
u_int64_t time_now;
};



static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
{
	struct ct_iter_state *st = seq->private;
	struct hlist_nulls_node *n;

	for (st->bucket = 0;
	     st->bucket < st->htable_size;
	     st->bucket++) {
		n = rcu_dereference(
			hlist_nulls_first_rcu(&st->hash[st->bucket]));
		if (!is_a_nulls(n))
			return n;
	}
	return NULL;
}

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yasuyuki kozakai
54
65.85%
1
20.00%
patrick mchardy
patrick mchardy
12
14.63%
1
20.00%
eric dumazet
eric dumazet
10
12.20%
2
40.00%
liping zhang
liping zhang
6
7.32%
1
20.00%
Total
82
100.00%
5
100.00%



static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
				      struct hlist_nulls_node *head)
{
	struct ct_iter_state *st = seq->private;

	head = rcu_dereference(hlist_nulls_next_rcu(head));
	while (is_a_nulls(head)) {
		if (likely(get_nulls_value(head) == st->bucket)) {
			if (++st->bucket >= st->htable_size)
				return NULL;
		}
		head = rcu_dereference(
			hlist_nulls_first_rcu(&st->hash[st->bucket]));
	}
	return head;
}

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yasuyuki kozakai
yasuyuki kozakai
58
59.79%
1
20.00%
eric dumazet
eric dumazet
27
27.84%
2
40.00%
patrick mchardy
patrick mchardy
6
6.19%
1
20.00%
liping zhang
liping zhang
6
6.19%
1
20.00%
Total
97
100.00%
5
100.00%



static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
{
	struct hlist_nulls_node *head = ct_get_first(seq);

	if (head)
		while (pos && (head = ct_get_next(seq, head)))
			pos--;
	return pos ? NULL : head;
}

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yasuyuki kozakai
53
96.36%
1
50.00%
eric dumazet
eric dumazet
2
3.64%
1
50.00%
Total
55
100.00%
2
100.00%


static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
	__acquires
(RCU)
{
	struct ct_iter_state *st = seq->private;

	st->time_now = ktime_get_real_ns();
	rcu_read_lock();

	nf_conntrack_get_ht(&st->hash, &st->htable_size);
	return ct_get_idx(seq, *pos);
}

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yasuyuki kozakai
yasuyuki kozakai
26
42.62%
1
16.67%
pablo neira ayuso
pablo neira ayuso
15
24.59%
1
16.67%
liping zhang
liping zhang
13
21.31%
1
16.67%
stephen hemminger
stephen hemminger
3
4.92%
1
16.67%
patrick mchardy
patrick mchardy
3
4.92%
1
16.67%
eric dumazet
eric dumazet
1
1.64%
1
16.67%
Total
61
100.00%
6
100.00%



static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
{
	(*pos)++;
	return ct_get_next(s, v);
}

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yasuyuki kozakai
34
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1
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34
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1
100.00%


static void ct_seq_stop(struct seq_file *s, void *v)
	__releases
(RCU)
{
	rcu_read_unlock();
}

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yasuyuki kozakai
yasuyuki kozakai
16
72.73%
1
33.33%
stephen hemminger
stephen hemminger
3
13.64%
1
33.33%
patrick mchardy
patrick mchardy
3
13.64%
1
33.33%
Total
22
100.00%
3
100.00%

#ifdef CONFIG_NF_CONNTRACK_SECMARK


static void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
	int ret;
	u32 len;
	char *secctx;

	ret = security_secid_to_secctx(ct->secmark, &secctx, &len);
	if (ret)
		return;

	seq_printf(s, "secctx=%s ", secctx);

	security_release_secctx(secctx, len);
}
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eric paris
61
96.83%
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steven rostedt
steven rostedt
2
3.17%
1
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63
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#else


static inline void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
}
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eric paris
15
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steven rostedt
2
11.76%
1
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17
100.00%
2
100.00%

#endif

#ifdef CONFIG_NF_CONNTRACK_ZONES


static void ct_show_zone(struct seq_file *s, const struct nf_conn *ct,
			 int dir)
{
	const struct nf_conntrack_zone *zone = nf_ct_zone(ct);

	if (zone->dir != dir)
		return;
	switch (zone->dir) {
	case NF_CT_DEFAULT_ZONE_DIR:
		seq_printf(s, "zone=%u ", zone->id);
		break;
	case NF_CT_ZONE_DIR_ORIG:
		seq_printf(s, "zone-orig=%u ", zone->id);
		break;
	case NF_CT_ZONE_DIR_REPL:
		seq_printf(s, "zone-reply=%u ", zone->id);
		break;
	default:
		break;
	}
}
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daniel borkmann
daniel borkmann
95
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#else


static inline void ct_show_zone(struct seq_file *s, const struct nf_conn *ct,
				int dir)
{
}
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daniel borkmann
daniel borkmann
20
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#endif

#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP


static void ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct)
{
	struct ct_iter_state *st = s->private;
	struct nf_conn_tstamp *tstamp;
	s64 delta_time;

	tstamp = nf_conn_tstamp_find(ct);
	if (tstamp) {
		delta_time = st->time_now - tstamp->start;
		if (delta_time > 0)
			delta_time = div_s64(delta_time, NSEC_PER_SEC);
		else
			delta_time = 0;

		seq_printf(s, "delta-time=%llu ",
			   (unsigned long long)delta_time);
	}
	return;
}
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pablo neira ayuso
59
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1
33.33%
patrick mchardy
patrick mchardy
30
32.61%
1
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steven rostedt
steven rostedt
3
3.26%
1
33.33%
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92
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3
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#else

static inline void

ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct)
{
}
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pablo neira ayuso
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1
50.00%
steven rostedt
steven rostedt
2
11.76%
1
50.00%
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17
100.00%
2
100.00%

#endif

/* return 0 on success, 1 in case of error */


static int ct_seq_show(struct seq_file *s, void *v)
{
	struct nf_conntrack_tuple_hash *hash = v;
	struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
	const struct nf_conntrack_l3proto *l3proto;
	const struct nf_conntrack_l4proto *l4proto;
	struct net *net = seq_file_net(s);
	int ret = 0;

	NF_CT_ASSERT(ct);
	if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
		return 0;

	/* we only want to print DIR_ORIGINAL */
	if (NF_CT_DIRECTION(hash))
		goto release;

	if (!net_eq(nf_ct_net(ct), net))
		goto release;

	l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
	NF_CT_ASSERT(l3proto);
	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
	NF_CT_ASSERT(l4proto);

	ret = -ENOSPC;
	seq_printf(s, "%-8s %u %-8s %u %ld ",
		   l3proto->name, nf_ct_l3num(ct),
		   l4proto->name, nf_ct_protonum(ct),
		   timer_pending(&ct->timeout)
		   ? (long)(ct->timeout.expires - jiffies)/HZ : 0);

	if (l4proto->print_conntrack)
		l4proto->print_conntrack(s, ct);

	print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
		    l3proto, l4proto);

	ct_show_zone(s, ct, NF_CT_ZONE_DIR_ORIG);

	if (seq_has_overflowed(s))
		goto release;

	if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
		goto release;

	if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
		seq_printf(s, "[UNREPLIED] ");

	print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
		    l3proto, l4proto);

	ct_show_zone(s, ct, NF_CT_ZONE_DIR_REPL);

	if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
		goto release;

	if (test_bit(IPS_ASSURED_BIT, &ct->status))
		seq_printf(s, "[ASSURED] ");

	if (seq_has_overflowed(s))
		goto release;

#if defined(CONFIG_NF_CONNTRACK_MARK)
	seq_printf(s, "mark=%u ", ct->mark);
#endif

	ct_show_secctx(s, ct);
	ct_show_zone(s, ct, NF_CT_DEFAULT_ZONE_DIR);
	ct_show_delta_time(s, ct);

	seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use));

	if (seq_has_overflowed(s))
		goto release;

	ret = 0;
release:
	nf_ct_put(ct);
	return ret;
}

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yasuyuki kozakai
237
53.50%
1
5.00%
eric dumazet
eric dumazet
55
12.42%
1
5.00%
patrick mchardy
patrick mchardy
42
9.48%
4
20.00%
steven rostedt
steven rostedt
32
7.22%
2
10.00%
liping zhang
liping zhang
26
5.87%
1
5.00%
daniel borkmann
daniel borkmann
21
4.74%
2
10.00%
martin josefsson
martin josefsson
9
2.03%
1
5.00%
pablo neira ayuso
pablo neira ayuso
7
1.58%
2
10.00%
james morris
james morris
4
0.90%
1
5.00%
krzysztof piotr oledzki
krzysztof piotr oledzki
4
0.90%
1
5.00%
jan engelhardt
jan engelhardt
2
0.45%
1
5.00%
joe perches
joe perches
2
0.45%
1
5.00%
eric paris
eric paris
1
0.23%
1
5.00%
david s. miller
david s. miller
1
0.23%
1
5.00%
Total
443
100.00%
20
100.00%


static const struct seq_operations ct_seq_ops = {
	.start = ct_seq_start,
	.next  = ct_seq_next,
	.stop  = ct_seq_stop,
	.show  = ct_seq_show
};



static int ct_open(struct inode *inode, struct file *file)
{
	return seq_open_net(inode, file, &ct_seq_ops,
			sizeof(struct ct_iter_state));
}

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yasuyuki kozakai
25
75.76%
1
33.33%
pavel emelianov
pavel emelianov
5
15.15%
1
33.33%
alexey dobriyan
alexey dobriyan
3
9.09%
1
33.33%
Total
33
100.00%
3
100.00%


static const struct file_operations ct_file_ops = {
	.owner   = THIS_MODULE,
	.open    = ct_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = seq_release_net,
};



static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
{
	struct net *net = seq_file_net(seq);
	int cpu;

	if (*pos == 0)
		return SEQ_START_TOKEN;

	for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
		if (!cpu_possible(cpu))
			continue;
		*pos = cpu + 1;
		return per_cpu_ptr(net->ct.stat, cpu);
	}

	return NULL;
}

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yasuyuki kozakai
yasuyuki kozakai
71
80.68%
1
25.00%
alexey dobriyan
alexey dobriyan
16
18.18%
2
50.00%
rusty russell
rusty russell
1
1.14%
1
25.00%
Total
88
100.00%
4
100.00%



static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
	struct net *net = seq_file_net(seq);
	int cpu;

	for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
		if (!cpu_possible(cpu))
			continue;
		*pos = cpu + 1;
		return per_cpu_ptr(net->ct.stat, cpu);
	}

	return NULL;
}

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yasuyuki kozakai
63
78.75%
1
25.00%
alexey dobriyan
alexey dobriyan
16
20.00%
2
50.00%
rusty russell
rusty russell
1
1.25%
1
25.00%
Total
80
100.00%
4
100.00%



static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
{
}

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yasuyuki kozakai
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1
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14
100.00%
1
100.00%



static int ct_cpu_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = seq_file_net(seq);
	unsigned int nr_conntracks = atomic_read(&net->ct.count);
	const struct ip_conntrack_stat *st = v;

	if (v == SEQ_START_TOKEN) {
		seq_printf(seq, "entries  searched found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error  expect_new expect_create expect_delete search_restart\n");
		return 0;
	}

	seq_printf(seq, "%08x  %08x %08x %08x %08x %08x %08x %08x "
			"%08x %08x %08x %08x %08x  %08x %08x %08x %08x\n",
		   nr_conntracks,
		   st->searched,
		   st->found,
		   st->new,
		   st->invalid,
		   st->ignore,
		   st->delete,
		   st->delete_list,
		   st->insert,
		   st->insert_failed,
		   st->drop,
		   st->early_drop,
		   st->error,

		   st->expect_new,
		   st->expect_create,
		   st->expect_delete,
		   st->search_restart
		);
	return 0;
}

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yasuyuki kozakai
120
84.51%
1
20.00%
alexey dobriyan
alexey dobriyan
15
10.56%
2
40.00%
jesper dangaard brouer
jesper dangaard brouer
6
4.23%
1
20.00%
jan engelhardt
jan engelhardt
1
0.70%
1
20.00%
Total
142
100.00%
5
100.00%


static const struct seq_operations ct_cpu_seq_ops = {
	.start	= ct_cpu_seq_start,
	.next	= ct_cpu_seq_next,
	.stop	= ct_cpu_seq_stop,
	.show	= ct_cpu_seq_show,
};



static int ct_cpu_seq_open(struct inode *inode, struct file *file)
{
	return seq_open_net(inode, file, &ct_cpu_seq_ops,
			    sizeof(struct seq_net_private));
}

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yasuyuki kozakai
24
72.73%
1
50.00%
alexey dobriyan
alexey dobriyan
9
27.27%
1
50.00%
Total
33
100.00%
2
100.00%


static const struct file_operations ct_cpu_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = ct_cpu_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = seq_release_net,
};



static int nf_conntrack_standalone_init_proc(struct net *net)
{
	struct proc_dir_entry *pde;
	kuid_t root_uid;
	kgid_t root_gid;

	pde = proc_create("nf_conntrack", 0440, net->proc_net, &ct_file_ops);
	if (!pde)
		goto out_nf_conntrack;

	root_uid = make_kuid(net->user_ns, 0);
	root_gid = make_kgid(net->user_ns, 0);
	if (uid_valid(root_uid) && gid_valid(root_gid))
		proc_set_user(pde, root_uid, root_gid);

	pde = proc_create("nf_conntrack", S_IRUGO, net->proc_net_stat,
			  &ct_cpu_seq_fops);
	if (!pde)
		goto out_stat_nf_conntrack;
	return 0;

out_stat_nf_conntrack:
	remove_proc_entry("nf_conntrack", net->proc_net);
out_nf_conntrack:
	return -ENOMEM;
}

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alexey dobriyan
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2
33.33%
philip whineray
philip whineray
49
36.84%
1
16.67%
gao feng
gao feng
10
7.52%
2
33.33%
denis v. lunev
denis v. lunev
4
3.01%
1
16.67%
Total
133
100.00%
6
100.00%



static void nf_conntrack_standalone_fini_proc(struct net *net)
{
	remove_proc_entry("nf_conntrack", net->proc_net_stat);
	remove_proc_entry("nf_conntrack", net->proc_net);
}
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alexey dobriyan
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82.76%
2
66.67%
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gao feng
5
17.24%
1
33.33%
Total
29
100.00%
3
100.00%

#else


static int nf_conntrack_standalone_init_proc(struct net *net)
{
	return 0;
}

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static void nf_conntrack_standalone_fini_proc(struct net *net)
{
}
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2
100.00%

#endif /* CONFIG_NF_CONNTRACK_PROCFS */

/* Sysctl support */

#ifdef CONFIG_SYSCTL
/* Log invalid packets of a given protocol */

static int log_invalid_proto_min __read_mostly;

static int log_invalid_proto_max __read_mostly = 255;

/* size the user *wants to set */

static unsigned int nf_conntrack_htable_size_user __read_mostly;


static int

nf_conntrack_hash_sysctl(struct ctl_table *table, int write,
			 void __user *buffer, size_t *lenp, loff_t *ppos)
{
	int ret;

	ret = proc_dointvec(table, write, buffer, lenp, ppos);
	if (ret < 0 || !write)
		return ret;

	/* update ret, we might not be able to satisfy request */
	ret = nf_conntrack_hash_resize(nf_conntrack_htable_size_user);

	/* update it to the actual value used by conntrack */
	nf_conntrack_htable_size_user = nf_conntrack_htable_size;
	return ret;
}

Contributors
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florian westphal
florian westphal
73
100.00%
1
100.00%
Total
73
100.00%
1
100.00%


static struct ctl_table_header *nf_ct_netfilter_header;


static struct ctl_table nf_ct_sysctl_table[] = {
	{
		.procname	= "nf_conntrack_max",
		.data		= &nf_conntrack_max,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
        },
	{
		.procname	= "nf_conntrack_count",
		.data		= &init_net.ct.count,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= proc_dointvec,
        },
	{
		.procname       = "nf_conntrack_buckets",
		.data           = &nf_conntrack_htable_size_user,
		.maxlen         = sizeof(unsigned int),
		.mode           = 0644,
		.proc_handler   = nf_conntrack_hash_sysctl,
        },
	{
		.procname	= "nf_conntrack_checksum",
		.data		= &init_net.ct.sysctl_checksum,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
        },
	{
		.procname	= "nf_conntrack_log_invalid",
		.data		= &init_net.ct.sysctl_log_invalid,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &log_invalid_proto_min,
		.extra2		= &log_invalid_proto_max,
        },
	{
		.procname	= "nf_conntrack_expect_max",
		.data		= &nf_ct_expect_max,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
        },
	{ }
};


static struct ctl_table nf_ct_netfilter_table[] = {
	{
		.procname	= "nf_conntrack_max",
		.data		= &nf_conntrack_max,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
        },
	{ }
};



static int nf_conntrack_standalone_init_sysctl(struct net *net)
{
	struct ctl_table *table;

	table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
			GFP_KERNEL);
	if (!table)
		goto out_kmemdup;

	table[1].data = &net->ct.count;
	table[3].data = &net->ct.sysctl_checksum;
	table[4].data = &net->ct.sysctl_log_invalid;

	/* Don't export sysctls to unprivileged users */
	if (net->user_ns != &init_user_ns)
		table[0].procname = NULL;

	if (!net_eq(&init_net, net))
		table[2].mode = 0444;

	net->ct.sysctl_header = register_net_sysctl(net, "net/netfilter", table);
	if (!net->ct.sysctl_header)
		goto out_unregister_netfilter;

	return 0;

out_unregister_netfilter:
	kfree(table);
out_kmemdup:
	return -ENOMEM;
}

Contributors
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CommitProp
alexey dobriyan
alexey dobriyan
104
64.20%
4
50.00%
eric w. biederman
eric w. biederman
21
12.96%
2
25.00%
florian westphal
florian westphal
20
12.35%
1
12.50%
krzysztof piotr oledzki
krzysztof piotr oledzki
17
10.49%
1
12.50%
Total
162
100.00%
8
100.00%



static void nf_conntrack_standalone_fini_sysctl(struct net *net)
{
	struct ctl_table *table;

	table = net->ct.sysctl_header->ctl_table_arg;
	unregister_net_sysctl_table(net->ct.sysctl_header);
	kfree(table);
}
Contributors
Person
Tokens
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CommitProp
alexey dobriyan
alexey dobriyan
39
97.50%
2
66.67%
krzysztof piotr oledzki
krzysztof piotr oledzki
1
2.50%
1
33.33%
Total
40
100.00%
3
100.00%

#else


static int nf_conntrack_standalone_init_sysctl(struct net *net)
{
	return 0;
}

Contributors
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alexey dobriyan
alexey dobriyan
14
100.00%
2
100.00%
Total
14
100.00%
2
100.00%



static void nf_conntrack_standalone_fini_sysctl(struct net *net)
{
}
Contributors
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alexey dobriyan
alexey dobriyan
10
100.00%
2
100.00%
Total
10
100.00%
2
100.00%

#endif /* CONFIG_SYSCTL */



static int nf_conntrack_pernet_init(struct net *net)
{
	int ret;

	ret = nf_conntrack_init_net(net);
	if (ret < 0)
		goto out_init;

	ret = nf_conntrack_standalone_init_proc(net);
	if (ret < 0)
		goto out_proc;

	net->ct.sysctl_checksum = 1;
	net->ct.sysctl_log_invalid = 0;
	ret = nf_conntrack_standalone_init_sysctl(net);
	if (ret < 0)
		goto out_sysctl;

	return 0;

out_sysctl:
	nf_conntrack_standalone_fini_proc(net);
out_proc:
	nf_conntrack_cleanup_net(net);
out_init:
	return ret;
}

Contributors
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Tokens
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CommitProp
alexey dobriyan
alexey dobriyan
97
97.00%
5
83.33%
gao feng
gao feng
3
3.00%
1
16.67%
Total
100
100.00%
6
100.00%



static void nf_conntrack_pernet_exit(struct list_head *net_exit_list)
{
	struct net *net;

	list_for_each_entry(net, net_exit_list, exit_list) {
		nf_conntrack_standalone_fini_sysctl(net);
		nf_conntrack_standalone_fini_proc(net);
	}
	nf_conntrack_cleanup_net_list(net_exit_list);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
alexey dobriyan
alexey dobriyan
22
53.66%
3
60.00%
vladimir davydov
vladimir davydov
18
43.90%
1
20.00%
gao feng
gao feng
1
2.44%
1
20.00%
Total
41
100.00%
5
100.00%


static struct pernet_operations nf_conntrack_net_ops = {
	.init		= nf_conntrack_pernet_init,
	.exit_batch	= nf_conntrack_pernet_exit,
};



static int __init nf_conntrack_standalone_init(void)
{
	int ret = nf_conntrack_init_start();
	if (ret < 0)
		goto out_start;

#ifdef CONFIG_SYSCTL
	nf_ct_netfilter_header =
		register_net_sysctl(&init_net, "net", nf_ct_netfilter_table);
	if (!nf_ct_netfilter_header) {
		pr_err("nf_conntrack: can't register to sysctl.\n");
		ret = -ENOMEM;
		goto out_sysctl;
	}

	nf_conntrack_htable_size_user = nf_conntrack_htable_size;
#endif

	ret = register_pernet_subsys(&nf_conntrack_net_ops);
	if (ret < 0)
		goto out_pernet;

	nf_conntrack_init_end();
	return 0;

out_pernet:
#ifdef CONFIG_SYSCTL
	unregister_net_sysctl_table(nf_ct_netfilter_header);
out_sysctl:
#endif
	nf_conntrack_cleanup_end();
out_start:
	return ret;
}

Contributors
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CommitProp
gao feng
gao feng
69
62.73%
1
12.50%
pablo neira ayuso
pablo neira ayuso
17
15.45%
1
12.50%
yasuyuki kozakai
yasuyuki kozakai
9
8.18%
1
12.50%
wei yongjun
wei yongjun
5
4.55%
1
12.50%
alexey dobriyan
alexey dobriyan
5
4.55%
2
25.00%
florian westphal
florian westphal
4
3.64%
1
12.50%
andrew morton
andrew morton
1
0.91%
1
12.50%
Total
110
100.00%
8
100.00%



static void __exit nf_conntrack_standalone_fini(void)
{
	nf_conntrack_cleanup_start();
	unregister_pernet_subsys(&nf_conntrack_net_ops);
#ifdef CONFIG_SYSCTL
	unregister_net_sysctl_table(nf_ct_netfilter_header);
#endif
	nf_conntrack_cleanup_end();
}

Contributors
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Tokens
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CommitProp
pablo neira ayuso
pablo neira ayuso
8
25.81%
2
28.57%
gao feng
gao feng
8
25.81%
1
14.29%
yasuyuki kozakai
yasuyuki kozakai
8
25.81%
1
14.29%
alexey dobriyan
alexey dobriyan
5
16.13%
1
14.29%
patrick mchardy
patrick mchardy
1
3.23%
1
14.29%
andrew morton
andrew morton
1
3.23%
1
14.29%
Total
31
100.00%
7
100.00%


module_init(nf_conntrack_standalone_init);

module_exit(nf_conntrack_standalone_fini);

/* Some modules need us, but don't depend directly on any symbol.
   They should call this. */


void need_conntrack(void)
{
}
Contributors
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CommitProp
yasuyuki kozakai
yasuyuki kozakai
5
83.33%
1
50.00%
harald welte
harald welte
1
16.67%
1
50.00%
Total
6
100.00%
2
100.00%


EXPORT_SYMBOL_GPL(need_conntrack);
Overall Contributors
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Tokens
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CommitProp
yasuyuki kozakai
yasuyuki kozakai
1240
42.79%
1
1.45%
alexey dobriyan
alexey dobriyan
512
17.67%
9
13.04%
patrick mchardy
patrick mchardy
172
5.94%
13
18.84%
daniel borkmann
daniel borkmann
143
4.93%
2
2.90%
pablo neira ayuso
pablo neira ayuso
136
4.69%
4
5.80%
florian westphal
florian westphal
109
3.76%
1
1.45%
eric dumazet
eric dumazet
98
3.38%
3
4.35%
gao feng
gao feng
98
3.38%
3
4.35%
eric paris
eric paris
87
3.00%
1
1.45%
liping zhang
liping zhang
60
2.07%
2
2.90%
philip whineray
philip whineray
49
1.69%
1
1.45%
steven rostedt
steven rostedt
41
1.41%
2
2.90%
krzysztof piotr oledzki
krzysztof piotr oledzki
31
1.07%
2
2.90%
eric w. biederman
eric w. biederman
26
0.90%
4
5.80%
vladimir davydov
vladimir davydov
19
0.66%
1
1.45%
martin josefsson
martin josefsson
18
0.62%
3
4.35%
joe perches
joe perches
7
0.24%
2
2.90%
jan engelhardt
jan engelhardt
7
0.24%
2
2.90%
stephen hemminger
stephen hemminger
6
0.21%
1
1.45%
jesper dangaard brouer
jesper dangaard brouer
6
0.21%
1
1.45%
wei yongjun
wei yongjun
5
0.17%
1
1.45%
pavel emelianov
pavel emelianov
5
0.17%
1
1.45%
denis v. lunev
denis v. lunev
4
0.14%
1
1.45%
andrew morton
andrew morton
4
0.14%
1
1.45%
james morris
james morris
4
0.14%
1
1.45%
tejun heo
tejun heo
3
0.10%
1
1.45%
philippe de muyter
philippe de muyter
2
0.07%
1
1.45%
arjan van de ven
arjan van de ven
2
0.07%
1
1.45%
rusty russell
rusty russell
2
0.07%
1
1.45%
david s. miller
david s. miller
1
0.03%
1
1.45%
harald welte
harald welte
1
0.03%
1
1.45%
Total
2898
100.00%
69
100.00%
  
Directory: net/netfilter

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