[net-next-2.6.git] / net / ipv4 / netfilter / nf_conntrack_l3proto_ipv4_compat.c

/* ip_conntrack proc compat - based on ip_conntrack_standalone.c
 *
 * (C) 1999-2001 Paul `Rusty' Russell
 * (C) 2002-2006 Netfilter Core Team <coreteam@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/types.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/percpu.h>

#include <linux/netfilter.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>

#ifdef CONFIG_NF_CT_ACCT
static unsigned int
seq_print_counters(struct seq_file *s,
		   const struct ip_conntrack_counter *counter)
{
	return seq_printf(s, "packets=%llu bytes=%llu ",
			  (unsigned long long)counter->packets,
			  (unsigned long long)counter->bytes);
}
#else
#define seq_print_counters(x, y)	0
#endif

struct ct_iter_state {
	unsigned int bucket;
};

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

	for (st->bucket = 0;
	     st->bucket < nf_conntrack_htable_size;
	     st->bucket++) {
		if (!hlist_empty(&nf_conntrack_hash[st->bucket]))
			return nf_conntrack_hash[st->bucket].first;
	}
	return NULL;
}

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

	head = head->next;
	while (head == NULL) {
		if (++st->bucket >= nf_conntrack_htable_size)
			return NULL;
		head = nf_conntrack_hash[st->bucket].first;
	}
	return head;
}

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

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

static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
{
	read_lock_bh(&nf_conntrack_lock);
	return ct_get_idx(seq, *pos);
}

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

static void ct_seq_stop(struct seq_file *s, void *v)
{
	read_unlock_bh(&nf_conntrack_lock);
}

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

	NF_CT_ASSERT(ct);

	/* we only want to print DIR_ORIGINAL */
	if (NF_CT_DIRECTION(hash))
		return 0;
	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num != AF_INET)
		return 0;

	l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
				       .tuple.src.l3num);
	NF_CT_ASSERT(l3proto);
	l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
				       .tuple.src.l3num,
				       ct->tuplehash[IP_CT_DIR_ORIGINAL]
				       .tuple.dst.protonum);
	NF_CT_ASSERT(l4proto);

	if (seq_printf(s, "%-8s %u %ld ",
		      l4proto->name,
		      ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
		      timer_pending(&ct->timeout)
		      ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
		return -ENOSPC;

	if (l3proto->print_conntrack(s, ct))
		return -ENOSPC;

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

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

	if (seq_print_counters(s, &ct->counters[IP_CT_DIR_ORIGINAL]))
		return -ENOSPC;

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

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

	if (seq_print_counters(s, &ct->counters[IP_CT_DIR_REPLY]))
		return -ENOSPC;

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

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

#ifdef CONFIG_NF_CONNTRACK_SECMARK
	if (seq_printf(s, "secmark=%u ", ct->secmark))
		return -ENOSPC;
#endif

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

	return 0;
}

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)
{
	struct seq_file *seq;
	struct ct_iter_state *st;
	int ret;

	st = kmalloc(sizeof(struct ct_iter_state), GFP_KERNEL);
	if (st == NULL)
		return -ENOMEM;
	ret = seq_open(file, &ct_seq_ops);
	if (ret)
		goto out_free;
	seq          = file->private_data;
	seq->private = st;
	memset(st, 0, sizeof(struct ct_iter_state));
	return ret;
out_free:
	kfree(st);
	return ret;
}

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

/* expects */
struct ct_expect_iter_state {
	unsigned int bucket;
};

static struct hlist_node *ct_expect_get_first(struct seq_file *seq)
{
	struct ct_expect_iter_state *st = seq->private;

	for (st->bucket = 0; st->bucket < nf_ct_expect_hsize; st->bucket++) {
		if (!hlist_empty(&nf_ct_expect_hash[st->bucket]))
			return nf_ct_expect_hash[st->bucket].first;
	}
	return NULL;
}

static struct hlist_node *ct_expect_get_next(struct seq_file *seq,
					     struct hlist_node *head)
{
	struct ct_expect_iter_state *st = seq->private;

	head = head->next;
	while (head == NULL) {
		if (++st->bucket >= nf_ct_expect_hsize)
			return NULL;
		head = nf_ct_expect_hash[st->bucket].first;
	}
	return head;
}

static struct hlist_node *ct_expect_get_idx(struct seq_file *seq, loff_t pos)
{
	struct hlist_node *head = ct_expect_get_first(seq);

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

static void *exp_seq_start(struct seq_file *seq, loff_t *pos)
{
	read_lock_bh(&nf_conntrack_lock);
	return ct_expect_get_idx(seq, *pos);
}

static void *exp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
	(*pos)++;
	return ct_expect_get_next(seq, v);
}

static void exp_seq_stop(struct seq_file *seq, void *v)
{
	read_unlock_bh(&nf_conntrack_lock);
}

static int exp_seq_show(struct seq_file *s, void *v)
{
	struct nf_conntrack_expect *exp;
	struct hlist_node *n = v;

	exp = hlist_entry(n, struct nf_conntrack_expect, hnode);

	if (exp->tuple.src.l3num != AF_INET)
		return 0;

	if (exp->timeout.function)
		seq_printf(s, "%ld ", timer_pending(&exp->timeout)
			   ? (long)(exp->timeout.expires - jiffies)/HZ : 0);
	else
		seq_printf(s, "- ");

	seq_printf(s, "proto=%u ", exp->tuple.dst.protonum);

	print_tuple(s, &exp->tuple,
		    __nf_ct_l3proto_find(exp->tuple.src.l3num),
		    __nf_ct_l4proto_find(exp->tuple.src.l3num,
					 exp->tuple.dst.protonum));
	return seq_putc(s, '\n');
}

static const struct seq_operations exp_seq_ops = {
	.start = exp_seq_start,
	.next = exp_seq_next,
	.stop = exp_seq_stop,
	.show = exp_seq_show
};

static int exp_open(struct inode *inode, struct file *file)
{
	struct seq_file *seq;
	struct ct_expect_iter_state *st;
	int ret;

	st = kmalloc(sizeof(struct ct_expect_iter_state), GFP_KERNEL);
	if (st == NULL)
		return -ENOMEM;
	ret = seq_open(file, &exp_seq_ops);
	if (ret)
		goto out_free;
	seq          = file->private_data;
	seq->private = st;
	memset(st, 0, sizeof(struct ct_expect_iter_state));
	return ret;
out_free:
	kfree(st);
	return ret;
}

static const struct file_operations ip_exp_file_ops = {
	.owner   = THIS_MODULE,
	.open    = exp_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = seq_release_private,
};

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

	if (*pos == 0)
		return SEQ_START_TOKEN;

	for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
		if (!cpu_possible(cpu))
			continue;
		*pos = cpu+1;
		return &per_cpu(nf_conntrack_stat, cpu);
	}

	return NULL;
}

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

	for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
		if (!cpu_possible(cpu))
			continue;
		*pos = cpu+1;
		return &per_cpu(nf_conntrack_stat, cpu);
	}

	return NULL;
}

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

static int ct_cpu_seq_show(struct seq_file *seq, void *v)
{
	unsigned int nr_conntracks = atomic_read(&nf_conntrack_count);
	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\n");
		return 0;
	}

	seq_printf(seq, "%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
		);
	return 0;
}

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(file, &ct_cpu_seq_ops);
}

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_private,
};

int __init nf_conntrack_ipv4_compat_init(void)
{
	struct proc_dir_entry *proc, *proc_exp, *proc_stat;

	proc = proc_net_fops_create("ip_conntrack", 0440, &ct_file_ops);
	if (!proc)
		goto err1;

	proc_exp = proc_net_fops_create("ip_conntrack_expect", 0440,
					&ip_exp_file_ops);
	if (!proc_exp)
		goto err2;

	proc_stat = create_proc_entry("ip_conntrack", S_IRUGO, proc_net_stat);
	if (!proc_stat)
		goto err3;

	proc_stat->proc_fops = &ct_cpu_seq_fops;
	proc_stat->owner = THIS_MODULE;

	return 0;

err3:
	proc_net_remove("ip_conntrack_expect");
err2:
	proc_net_remove("ip_conntrack");
err1:
	return -ENOMEM;
}

void __exit nf_conntrack_ipv4_compat_fini(void)
{
	remove_proc_entry("ip_conntrack", proc_net_stat);
	proc_net_remove("ip_conntrack_expect");
	proc_net_remove("ip_conntrack");
}
Commit	Line	Data
e4bd8bce PM	1	/* ip_conntrack proc compat - based on ip_conntrack_standalone.c
	2	*
	3	* (C) 1999-2001 Paul `Rusty' Russell
	4	* (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10	#include <linux/types.h>
	11	#include <linux/proc_fs.h>
	12	#include <linux/seq_file.h>
	13	#include <linux/percpu.h>
	14
	15	#include <linux/netfilter.h>
	16	#include <net/netfilter/nf_conntrack_core.h>
	17	#include <net/netfilter/nf_conntrack_l3proto.h>
	18	#include <net/netfilter/nf_conntrack_l4proto.h>
	19	#include <net/netfilter/nf_conntrack_expect.h>
	20
e4bd8bce PM	21	#ifdef CONFIG_NF_CT_ACCT
	22	static unsigned int
	23	seq_print_counters(struct seq_file *s,
	24	const struct ip_conntrack_counter *counter)
	25	{
	26	return seq_printf(s, "packets=%llu bytes=%llu ",
	27	(unsigned long long)counter->packets,
	28	(unsigned long long)counter->bytes);
	29	}
	30	#else
	31	#define seq_print_counters(x, y) 0
	32	#endif
	33
	34	struct ct_iter_state {
	35	unsigned int bucket;
	36	};
	37
f205c5e0	38	static struct hlist_node ct_get_first(struct seq_file seq)
e4bd8bce PM	39	{
	40	struct ct_iter_state *st = seq->private;
	41
	42	for (st->bucket = 0;
	43	st->bucket < nf_conntrack_htable_size;
	44	st->bucket++) {
f205c5e0 PM	45	if (!hlist_empty(&nf_conntrack_hash[st->bucket]))
f205c5e0 PM	46	return nf_conntrack_hash[st->bucket].first;
e4bd8bce PM	47	}
	48	return NULL;
	49	}
	50
f205c5e0 PM	51	static struct hlist_node ct_get_next(struct seq_file seq,
f205c5e0 PM	52	struct hlist_node *head)
e4bd8bce PM	53	{
	54	struct ct_iter_state *st = seq->private;
	55
	56	head = head->next;
f205c5e0	57	while (head == NULL) {
e4bd8bce PM	58	if (++st->bucket >= nf_conntrack_htable_size)
e4bd8bce PM	59	return NULL;
f205c5e0	60	head = nf_conntrack_hash[st->bucket].first;
e4bd8bce PM	61	}
	62	return head;
	63	}
	64
f205c5e0	65	static struct hlist_node ct_get_idx(struct seq_file seq, loff_t pos)
e4bd8bce	66	{
f205c5e0	67	struct hlist_node *head = ct_get_first(seq);
e4bd8bce PM	68
	69	if (head)
	70	while (pos && (head = ct_get_next(seq, head)))
	71	pos--;
	72	return pos ? NULL : head;
	73	}
	74
	75	static void ct_seq_start(struct seq_file seq, loff_t *pos)
	76	{
	77	read_lock_bh(&nf_conntrack_lock);
	78	return ct_get_idx(seq, *pos);
	79	}
	80
	81	static void ct_seq_next(struct seq_file s, void v, loff_t pos)
	82	{
	83	(*pos)++;
	84	return ct_get_next(s, v);
	85	}
	86
	87	static void ct_seq_stop(struct seq_file s, void v)
	88	{
	89	read_unlock_bh(&nf_conntrack_lock);
	90	}
	91
	92	static int ct_seq_show(struct seq_file s, void v)
	93	{
	94	const struct nf_conntrack_tuple_hash *hash = v;
	95	const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
	96	struct nf_conntrack_l3proto *l3proto;
	97	struct nf_conntrack_l4proto *l4proto;
	98
	99	NF_CT_ASSERT(ct);
	100
	101	/* we only want to print DIR_ORIGINAL */
	102	if (NF_CT_DIRECTION(hash))
	103	return 0;
	104	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num != AF_INET)
	105	return 0;
	106
	107	l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
	108	.tuple.src.l3num);
	109	NF_CT_ASSERT(l3proto);
	110	l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
	111	.tuple.src.l3num,
	112	ct->tuplehash[IP_CT_DIR_ORIGINAL]
	113	.tuple.dst.protonum);
	114	NF_CT_ASSERT(l4proto);
	115
	116	if (seq_printf(s, "%-8s %u %ld ",
	117	l4proto->name,
	118	ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
	119	timer_pending(&ct->timeout)
	120	? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
	121	return -ENOSPC;
	122
	123	if (l3proto->print_conntrack(s, ct))
	124	return -ENOSPC;
	125
	126	if (l4proto->print_conntrack(s, ct))
	127	return -ENOSPC;
	128
	129	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
	130	l3proto, l4proto))
	131	return -ENOSPC;
132
e905a9ed	133	if (seq_print_counters(s, &ct->counters[IP_CT_DIR_ORIGINAL]))
e4bd8bce PM	134	return -ENOSPC;
	135
	136	if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
	137	if (seq_printf(s, "[UNREPLIED] "))
	138	return -ENOSPC;
	139
	140	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
	141	l3proto, l4proto))
	142	return -ENOSPC;
	143
e905a9ed	144	if (seq_print_counters(s, &ct->counters[IP_CT_DIR_REPLY]))
e4bd8bce PM	145	return -ENOSPC;
	146
	147	if (test_bit(IPS_ASSURED_BIT, &ct->status))
	148	if (seq_printf(s, "[ASSURED] "))
	149	return -ENOSPC;
	150
	151	#ifdef CONFIG_NF_CONNTRACK_MARK
	152	if (seq_printf(s, "mark=%u ", ct->mark))
	153	return -ENOSPC;
	154	#endif
	155
	156	#ifdef CONFIG_NF_CONNTRACK_SECMARK
	157	if (seq_printf(s, "secmark=%u ", ct->secmark))
	158	return -ENOSPC;
	159	#endif
	160
	161	if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
	162	return -ENOSPC;
	163
	164	return 0;
	165	}
	166
56b3d975	167	static const struct seq_operations ct_seq_ops = {
e4bd8bce PM	168	.start = ct_seq_start,
	169	.next = ct_seq_next,
	170	.stop = ct_seq_stop,
	171	.show = ct_seq_show
	172	};
	173
	174	static int ct_open(struct inode inode, struct file file)
	175	{
	176	struct seq_file *seq;
	177	struct ct_iter_state *st;
	178	int ret;
	179
	180	st = kmalloc(sizeof(struct ct_iter_state), GFP_KERNEL);
	181	if (st == NULL)
	182	return -ENOMEM;
	183	ret = seq_open(file, &ct_seq_ops);
	184	if (ret)
	185	goto out_free;
	186	seq = file->private_data;
	187	seq->private = st;
	188	memset(st, 0, sizeof(struct ct_iter_state));
	189	return ret;
	190	out_free:
	191	kfree(st);
	192	return ret;
	193	}
	194
9a32144e	195	static const struct file_operations ct_file_ops = {
e4bd8bce PM	196	.owner = THIS_MODULE,
	197	.open = ct_open,
	198	.read = seq_read,
	199	.llseek = seq_lseek,
	200	.release = seq_release_private,
	201	};
	202
	203	/* expects */
5d08ad44 PM	204	struct ct_expect_iter_state {
	205	unsigned int bucket;
	206	};
	207
	208	static struct hlist_node ct_expect_get_first(struct seq_file seq)
e4bd8bce	209	{
5d08ad44	210	struct ct_expect_iter_state *st = seq->private;
e4bd8bce	211
5d08ad44 PM	212	for (st->bucket = 0; st->bucket < nf_ct_expect_hsize; st->bucket++) {
	213	if (!hlist_empty(&nf_ct_expect_hash[st->bucket]))
	214	return nf_ct_expect_hash[st->bucket].first;
	215	}
	216	return NULL;
	217	}
e4bd8bce	218
5d08ad44 PM	219	static struct hlist_node ct_expect_get_next(struct seq_file seq,
	220	struct hlist_node *head)
	221	{
	222	struct ct_expect_iter_state *st = seq->private;
e4bd8bce	223
5d08ad44 PM	224	head = head->next;
	225	while (head == NULL) {
	226	if (++st->bucket >= nf_ct_expect_hsize)
e4bd8bce	227	return NULL;
5d08ad44	228	head = nf_ct_expect_hash[st->bucket].first;
e4bd8bce	229	}
5d08ad44	230	return head;
e4bd8bce PM	231	}
e4bd8bce PM	232
5d08ad44	233	static struct hlist_node ct_expect_get_idx(struct seq_file seq, loff_t pos)
e4bd8bce	234	{
5d08ad44	235	struct hlist_node *head = ct_expect_get_first(seq);
e4bd8bce	236
5d08ad44 PM	237	if (head)
	238	while (pos && (head = ct_expect_get_next(seq, head)))
	239	pos--;
	240	return pos ? NULL : head;
	241	}
e4bd8bce	242
5d08ad44 PM	243	static void exp_seq_start(struct seq_file seq, loff_t *pos)
	244	{
	245	read_lock_bh(&nf_conntrack_lock);
	246	return ct_expect_get_idx(seq, *pos);
	247	}
e4bd8bce	248
5d08ad44 PM	249	static void exp_seq_next(struct seq_file seq, void v, loff_t pos)
	250	{
	251	(*pos)++;
	252	return ct_expect_get_next(seq, v);
e4bd8bce PM	253	}
e4bd8bce PM	254
5d08ad44	255	static void exp_seq_stop(struct seq_file seq, void v)
e4bd8bce PM	256	{
	257	read_unlock_bh(&nf_conntrack_lock);
	258	}
	259
	260	static int exp_seq_show(struct seq_file s, void v)
	261	{
5d08ad44 PM	262	struct nf_conntrack_expect *exp;
	263	struct hlist_node *n = v;
	264
	265	exp = hlist_entry(n, struct nf_conntrack_expect, hnode);
e4bd8bce PM	266
	267	if (exp->tuple.src.l3num != AF_INET)
	268	return 0;
	269
	270	if (exp->timeout.function)
	271	seq_printf(s, "%ld ", timer_pending(&exp->timeout)
	272	? (long)(exp->timeout.expires - jiffies)/HZ : 0);
	273	else
	274	seq_printf(s, "- ");
	275
	276	seq_printf(s, "proto=%u ", exp->tuple.dst.protonum);
	277
	278	print_tuple(s, &exp->tuple,
	279	__nf_ct_l3proto_find(exp->tuple.src.l3num),
	280	__nf_ct_l4proto_find(exp->tuple.src.l3num,
e905a9ed	281	exp->tuple.dst.protonum));
e4bd8bce PM	282	return seq_putc(s, '\n');
	283	}
	284
56b3d975	285	static const struct seq_operations exp_seq_ops = {
e4bd8bce PM	286	.start = exp_seq_start,
	287	.next = exp_seq_next,
	288	.stop = exp_seq_stop,
	289	.show = exp_seq_show
	290	};
	291
	292	static int exp_open(struct inode inode, struct file file)
	293	{
5d08ad44 PM	294	struct seq_file *seq;
	295	struct ct_expect_iter_state *st;
	296	int ret;
	297
	298	st = kmalloc(sizeof(struct ct_expect_iter_state), GFP_KERNEL);
	299	if (st == NULL)
	300	return -ENOMEM;
	301	ret = seq_open(file, &exp_seq_ops);
	302	if (ret)
	303	goto out_free;
	304	seq = file->private_data;
	305	seq->private = st;
	306	memset(st, 0, sizeof(struct ct_expect_iter_state));
	307	return ret;
	308	out_free:
	309	kfree(st);
	310	return ret;
e4bd8bce PM	311	}
e4bd8bce PM	312
9a32144e	313	static const struct file_operations ip_exp_file_ops = {
e4bd8bce PM	314	.owner = THIS_MODULE,
	315	.open = exp_open,
	316	.read = seq_read,
	317	.llseek = seq_lseek,
5d08ad44	318	.release = seq_release_private,
e4bd8bce PM	319	};
	320
	321	static void ct_cpu_seq_start(struct seq_file seq, loff_t *pos)
	322	{
	323	int cpu;
	324
	325	if (*pos == 0)
	326	return SEQ_START_TOKEN;
	327
	328	for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
	329	if (!cpu_possible(cpu))
	330	continue;
	331	*pos = cpu+1;
	332	return &per_cpu(nf_conntrack_stat, cpu);
	333	}
	334
	335	return NULL;
	336	}
	337
	338	static void ct_cpu_seq_next(struct seq_file seq, void v, loff_t pos)
	339	{
	340	int cpu;
	341
	342	for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
	343	if (!cpu_possible(cpu))
	344	continue;
	345	*pos = cpu+1;
	346	return &per_cpu(nf_conntrack_stat, cpu);
	347	}
	348
	349	return NULL;
	350	}
	351
	352	static void ct_cpu_seq_stop(struct seq_file seq, void v)
	353	{
	354	}
	355
	356	static int ct_cpu_seq_show(struct seq_file seq, void v)
	357	{
	358	unsigned int nr_conntracks = atomic_read(&nf_conntrack_count);
	359	struct ip_conntrack_stat *st = v;
	360
	361	if (v == SEQ_START_TOKEN) {
	362	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\n");
	363	return 0;
	364	}
	365
	366	seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x "
	367	"%08x %08x %08x %08x %08x %08x %08x %08x \n",
	368	nr_conntracks,
	369	st->searched,
	370	st->found,
	371	st->new,
	372	st->invalid,
	373	st->ignore,
	374	st->delete,
	375	st->delete_list,
	376	st->insert,
	377	st->insert_failed,
	378	st->drop,
	379	st->early_drop,
	380	st->error,
	381
	382	st->expect_new,
383	st->expect_create,
384	st->expect_delete
385	);
386	return 0;
387	}
388
56b3d975	389	static const struct seq_operations ct_cpu_seq_ops = {
e4bd8bce PM	390	.start = ct_cpu_seq_start,
	391	.next = ct_cpu_seq_next,
	392	.stop = ct_cpu_seq_stop,
	393	.show = ct_cpu_seq_show,
	394	};
	395
	396	static int ct_cpu_seq_open(struct inode inode, struct file file)
	397	{
	398	return seq_open(file, &ct_cpu_seq_ops);
	399	}
	400
9a32144e	401	static const struct file_operations ct_cpu_seq_fops = {
e4bd8bce PM	402	.owner = THIS_MODULE,
	403	.open = ct_cpu_seq_open,
	404	.read = seq_read,
	405	.llseek = seq_lseek,
	406	.release = seq_release_private,
	407	};
	408
	409	int __init nf_conntrack_ipv4_compat_init(void)
	410	{
	411	struct proc_dir_entry proc, proc_exp, *proc_stat;
	412
	413	proc = proc_net_fops_create("ip_conntrack", 0440, &ct_file_ops);
	414	if (!proc)
	415	goto err1;
	416
	417	proc_exp = proc_net_fops_create("ip_conntrack_expect", 0440,
	418	&ip_exp_file_ops);
	419	if (!proc_exp)
	420	goto err2;
	421
	422	proc_stat = create_proc_entry("ip_conntrack", S_IRUGO, proc_net_stat);
	423	if (!proc_stat)
	424	goto err3;
	425
	426	proc_stat->proc_fops = &ct_cpu_seq_fops;
	427	proc_stat->owner = THIS_MODULE;
	428
	429	return 0;
	430
	431	err3:
	432	proc_net_remove("ip_conntrack_expect");
	433	err2:
	434	proc_net_remove("ip_conntrack");
	435	err1:
	436	return -ENOMEM;
	437	}
	438
	439	void __exit nf_conntrack_ipv4_compat_fini(void)
	440	{
	441	remove_proc_entry("ip_conntrack", proc_net_stat);
	442	proc_net_remove("ip_conntrack_expect");
	443	proc_net_remove("ip_conntrack");
	444	}