1 /* ip_conntrack proc compat - based on ip_conntrack_standalone.c
3 * (C) 1999-2001 Paul `Rusty' Russell
4 * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
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.
10 #include <linux/types.h>
11 #include <linux/proc_fs.h>
12 #include <linux/seq_file.h>
13 #include <linux/percpu.h>
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>
24 #define DEBUGP(format, args...)
27 #ifdef CONFIG_NF_CT_ACCT
29 seq_print_counters(struct seq_file
*s
,
30 const struct ip_conntrack_counter
*counter
)
32 return seq_printf(s
, "packets=%llu bytes=%llu ",
33 (unsigned long long)counter
->packets
,
34 (unsigned long long)counter
->bytes
);
37 #define seq_print_counters(x, y) 0
40 struct ct_iter_state
{
44 static struct list_head
*ct_get_first(struct seq_file
*seq
)
46 struct ct_iter_state
*st
= seq
->private;
49 st
->bucket
< nf_conntrack_htable_size
;
51 if (!list_empty(&nf_conntrack_hash
[st
->bucket
]))
52 return nf_conntrack_hash
[st
->bucket
].next
;
57 static struct list_head
*ct_get_next(struct seq_file
*seq
, struct list_head
*head
)
59 struct ct_iter_state
*st
= seq
->private;
62 while (head
== &nf_conntrack_hash
[st
->bucket
]) {
63 if (++st
->bucket
>= nf_conntrack_htable_size
)
65 head
= nf_conntrack_hash
[st
->bucket
].next
;
70 static struct list_head
*ct_get_idx(struct seq_file
*seq
, loff_t pos
)
72 struct list_head
*head
= ct_get_first(seq
);
75 while (pos
&& (head
= ct_get_next(seq
, head
)))
77 return pos
? NULL
: head
;
80 static void *ct_seq_start(struct seq_file
*seq
, loff_t
*pos
)
82 read_lock_bh(&nf_conntrack_lock
);
83 return ct_get_idx(seq
, *pos
);
86 static void *ct_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
89 return ct_get_next(s
, v
);
92 static void ct_seq_stop(struct seq_file
*s
, void *v
)
94 read_unlock_bh(&nf_conntrack_lock
);
97 static int ct_seq_show(struct seq_file
*s
, void *v
)
99 const struct nf_conntrack_tuple_hash
*hash
= v
;
100 const struct nf_conn
*ct
= nf_ct_tuplehash_to_ctrack(hash
);
101 struct nf_conntrack_l3proto
*l3proto
;
102 struct nf_conntrack_l4proto
*l4proto
;
106 /* we only want to print DIR_ORIGINAL */
107 if (NF_CT_DIRECTION(hash
))
109 if (ct
->tuplehash
[IP_CT_DIR_ORIGINAL
].tuple
.src
.l3num
!= AF_INET
)
112 l3proto
= __nf_ct_l3proto_find(ct
->tuplehash
[IP_CT_DIR_ORIGINAL
]
114 NF_CT_ASSERT(l3proto
);
115 l4proto
= __nf_ct_l4proto_find(ct
->tuplehash
[IP_CT_DIR_ORIGINAL
]
117 ct
->tuplehash
[IP_CT_DIR_ORIGINAL
]
118 .tuple
.dst
.protonum
);
119 NF_CT_ASSERT(l4proto
);
121 if (seq_printf(s
, "%-8s %u %ld ",
123 ct
->tuplehash
[IP_CT_DIR_ORIGINAL
].tuple
.dst
.protonum
,
124 timer_pending(&ct
->timeout
)
125 ? (long)(ct
->timeout
.expires
- jiffies
)/HZ
: 0) != 0)
128 if (l3proto
->print_conntrack(s
, ct
))
131 if (l4proto
->print_conntrack(s
, ct
))
134 if (print_tuple(s
, &ct
->tuplehash
[IP_CT_DIR_ORIGINAL
].tuple
,
138 if (seq_print_counters(s
, &ct
->counters
[IP_CT_DIR_ORIGINAL
]))
141 if (!(test_bit(IPS_SEEN_REPLY_BIT
, &ct
->status
)))
142 if (seq_printf(s
, "[UNREPLIED] "))
145 if (print_tuple(s
, &ct
->tuplehash
[IP_CT_DIR_REPLY
].tuple
,
149 if (seq_print_counters(s
, &ct
->counters
[IP_CT_DIR_REPLY
]))
152 if (test_bit(IPS_ASSURED_BIT
, &ct
->status
))
153 if (seq_printf(s
, "[ASSURED] "))
156 #ifdef CONFIG_NF_CONNTRACK_MARK
157 if (seq_printf(s
, "mark=%u ", ct
->mark
))
161 #ifdef CONFIG_NF_CONNTRACK_SECMARK
162 if (seq_printf(s
, "secmark=%u ", ct
->secmark
))
166 if (seq_printf(s
, "use=%u\n", atomic_read(&ct
->ct_general
.use
)))
172 static struct seq_operations ct_seq_ops
= {
173 .start
= ct_seq_start
,
179 static int ct_open(struct inode
*inode
, struct file
*file
)
181 struct seq_file
*seq
;
182 struct ct_iter_state
*st
;
185 st
= kmalloc(sizeof(struct ct_iter_state
), GFP_KERNEL
);
188 ret
= seq_open(file
, &ct_seq_ops
);
191 seq
= file
->private_data
;
193 memset(st
, 0, sizeof(struct ct_iter_state
));
200 static struct file_operations ct_file_ops
= {
201 .owner
= THIS_MODULE
,
205 .release
= seq_release_private
,
209 static void *exp_seq_start(struct seq_file
*s
, loff_t
*pos
)
211 struct list_head
*e
= &nf_conntrack_expect_list
;
214 /* strange seq_file api calls stop even if we fail,
215 * thus we need to grab lock since stop unlocks */
216 read_lock_bh(&nf_conntrack_lock
);
221 for (i
= 0; i
<= *pos
; i
++) {
223 if (e
== &nf_conntrack_expect_list
)
229 static void *exp_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
231 struct list_head
*e
= v
;
236 if (e
== &nf_conntrack_expect_list
)
242 static void exp_seq_stop(struct seq_file
*s
, void *v
)
244 read_unlock_bh(&nf_conntrack_lock
);
247 static int exp_seq_show(struct seq_file
*s
, void *v
)
249 struct nf_conntrack_expect
*exp
= v
;
251 if (exp
->tuple
.src
.l3num
!= AF_INET
)
254 if (exp
->timeout
.function
)
255 seq_printf(s
, "%ld ", timer_pending(&exp
->timeout
)
256 ? (long)(exp
->timeout
.expires
- jiffies
)/HZ
: 0);
260 seq_printf(s
, "proto=%u ", exp
->tuple
.dst
.protonum
);
262 print_tuple(s
, &exp
->tuple
,
263 __nf_ct_l3proto_find(exp
->tuple
.src
.l3num
),
264 __nf_ct_l4proto_find(exp
->tuple
.src
.l3num
,
265 exp
->tuple
.dst
.protonum
));
266 return seq_putc(s
, '\n');
269 static struct seq_operations exp_seq_ops
= {
270 .start
= exp_seq_start
,
271 .next
= exp_seq_next
,
272 .stop
= exp_seq_stop
,
276 static int exp_open(struct inode
*inode
, struct file
*file
)
278 return seq_open(file
, &exp_seq_ops
);
281 static struct file_operations ip_exp_file_ops
= {
282 .owner
= THIS_MODULE
,
286 .release
= seq_release
289 static void *ct_cpu_seq_start(struct seq_file
*seq
, loff_t
*pos
)
294 return SEQ_START_TOKEN
;
296 for (cpu
= *pos
-1; cpu
< NR_CPUS
; ++cpu
) {
297 if (!cpu_possible(cpu
))
300 return &per_cpu(nf_conntrack_stat
, cpu
);
306 static void *ct_cpu_seq_next(struct seq_file
*seq
, void *v
, loff_t
*pos
)
310 for (cpu
= *pos
; cpu
< NR_CPUS
; ++cpu
) {
311 if (!cpu_possible(cpu
))
314 return &per_cpu(nf_conntrack_stat
, cpu
);
320 static void ct_cpu_seq_stop(struct seq_file
*seq
, void *v
)
324 static int ct_cpu_seq_show(struct seq_file
*seq
, void *v
)
326 unsigned int nr_conntracks
= atomic_read(&nf_conntrack_count
);
327 struct ip_conntrack_stat
*st
= v
;
329 if (v
== SEQ_START_TOKEN
) {
330 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");
334 seq_printf(seq
, "%08x %08x %08x %08x %08x %08x %08x %08x "
335 "%08x %08x %08x %08x %08x %08x %08x %08x \n",
357 static struct seq_operations ct_cpu_seq_ops
= {
358 .start
= ct_cpu_seq_start
,
359 .next
= ct_cpu_seq_next
,
360 .stop
= ct_cpu_seq_stop
,
361 .show
= ct_cpu_seq_show
,
364 static int ct_cpu_seq_open(struct inode
*inode
, struct file
*file
)
366 return seq_open(file
, &ct_cpu_seq_ops
);
369 static struct file_operations ct_cpu_seq_fops
= {
370 .owner
= THIS_MODULE
,
371 .open
= ct_cpu_seq_open
,
374 .release
= seq_release_private
,
377 int __init
nf_conntrack_ipv4_compat_init(void)
379 struct proc_dir_entry
*proc
, *proc_exp
, *proc_stat
;
381 proc
= proc_net_fops_create("ip_conntrack", 0440, &ct_file_ops
);
385 proc_exp
= proc_net_fops_create("ip_conntrack_expect", 0440,
390 proc_stat
= create_proc_entry("ip_conntrack", S_IRUGO
, proc_net_stat
);
394 proc_stat
->proc_fops
= &ct_cpu_seq_fops
;
395 proc_stat
->owner
= THIS_MODULE
;
400 proc_net_remove("ip_conntrack_expect");
402 proc_net_remove("ip_conntrack");
407 void __exit
nf_conntrack_ipv4_compat_fini(void)
409 remove_proc_entry("ip_conntrack", proc_net_stat
);
410 proc_net_remove("ip_conntrack_expect");
411 proc_net_remove("ip_conntrack");