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netfilter: nf_log_syslog: Unset bridge logger in pernet exit
[linux-block.git] / net / netfilter / nf_conntrack_standalone.c
CommitLineData
a0ae2562 1// SPDX-License-Identifier: GPL-2.0
9fb9cbb1
YK		 2#include <linux/types.h>
3#include <linux/netfilter.h>
5a0e3ad6 4#include <linux/slab.h>
9fb9cbb1
YK		 5#include <linux/module.h>
6#include <linux/skbuff.h>
7#include <linux/proc_fs.h>
8#include <linux/seq_file.h>
9#include <linux/percpu.h>
10#include <linux/netdevice.h>
1ae4de0c 11#include <linux/security.h>
457c4cbc 12#include <net/net_namespace.h>
9fb9cbb1
YK		 13#ifdef CONFIG_SYSCTL
14#include <linux/sysctl.h>
15#endif
16
9fb9cbb1 17#include <net/netfilter/nf_conntrack.h>
f6180121 18#include <net/netfilter/nf_conntrack_core.h>
605dcad6 19#include <net/netfilter/nf_conntrack_l4proto.h>
77ab9cff 20#include <net/netfilter/nf_conntrack_expect.h>
9fb9cbb1 21#include <net/netfilter/nf_conntrack_helper.h>
58401572 22#include <net/netfilter/nf_conntrack_acct.h>
5d0aa2cc 23#include <net/netfilter/nf_conntrack_zones.h>
a992ca2a 24#include <net/netfilter/nf_conntrack_timestamp.h>
0e60ebe0 25#include <linux/rculist_nulls.h>
9fb9cbb1 26
ba3fbe66
PNA		 27static bool enable_hooks __read_mostly;
28MODULE_PARM_DESC(enable_hooks, "Always enable conntrack hooks");
29module_param(enable_hooks, bool, 0000);
30
a0ae2562 31unsigned int nf_conntrack_net_id __read_mostly;
9fb9cbb1 32
54b07dca 33#ifdef CONFIG_NF_CONNTRACK_PROCFS
824f1fbe 34void
9fb9cbb1 35print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
32948588 36 const struct nf_conntrack_l4proto *l4proto)
9fb9cbb1 37{
f957be9d 38 switch (tuple->src.l3num) {
91950833
FW		 39 case NFPROTO_IPV4:
40 seq_printf(s, "src=%pI4 dst=%pI4 ",
41 &tuple->src.u3.ip, &tuple->dst.u3.ip);
42 break;
43 case NFPROTO_IPV6:
44 seq_printf(s, "src=%pI6 dst=%pI6 ",
45 tuple->src.u3.ip6, tuple->dst.u3.ip6);
46 break;
47 default:
48 break;
49 }
50
51 switch (l4proto->l4proto) {
52 case IPPROTO_ICMP:
53 seq_printf(s, "type=%u code=%u id=%u ",
54 tuple->dst.u.icmp.type,
55 tuple->dst.u.icmp.code,
56 ntohs(tuple->src.u.icmp.id));
57 break;
58 case IPPROTO_TCP:
59 seq_printf(s, "sport=%hu dport=%hu ",
60 ntohs(tuple->src.u.tcp.port),
61 ntohs(tuple->dst.u.tcp.port));
62 break;
954d8297 63 case IPPROTO_UDPLITE:
91950833
FW		 64 case IPPROTO_UDP:
65 seq_printf(s, "sport=%hu dport=%hu ",
66 ntohs(tuple->src.u.udp.port),
67 ntohs(tuple->dst.u.udp.port));
68
69 break;
70 case IPPROTO_DCCP:
71 seq_printf(s, "sport=%hu dport=%hu ",
72 ntohs(tuple->src.u.dccp.port),
73 ntohs(tuple->dst.u.dccp.port));
74 break;
75 case IPPROTO_SCTP:
76 seq_printf(s, "sport=%hu dport=%hu ",
77 ntohs(tuple->src.u.sctp.port),
78 ntohs(tuple->dst.u.sctp.port));
79 break;
80 case IPPROTO_ICMPV6:
81 seq_printf(s, "type=%u code=%u id=%u ",
82 tuple->dst.u.icmp.type,
83 tuple->dst.u.icmp.code,
84 ntohs(tuple->src.u.icmp.id));
85 break;
86 case IPPROTO_GRE:
87 seq_printf(s, "srckey=0x%x dstkey=0x%x ",
88 ntohs(tuple->src.u.gre.key),
89 ntohs(tuple->dst.u.gre.key));
90 break;
91 default:
92 break;
93 }
9fb9cbb1 94}
e4bd8bce 95EXPORT_SYMBOL_GPL(print_tuple);
9fb9cbb1 96
9fb9cbb1 97struct ct_iter_state {
b2ce2c74 98 struct seq_net_private p;
64b87639
LZ		 99 struct hlist_nulls_head *hash;
100 unsigned int htable_size;
9fb9cbb1 101 unsigned int bucket;
a992ca2a 102 u_int64_t time_now;
9fb9cbb1
YK		 103};
104
ea781f19 105static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
9fb9cbb1
YK		 106{
107 struct ct_iter_state *st = seq->private;
ea781f19 108 struct hlist_nulls_node *n;
9fb9cbb1
YK		 109
110 for (st->bucket = 0;
64b87639 111 st->bucket < st->htable_size;
9fb9cbb1 112 st->bucket++) {
64b87639
LZ		 113 n = rcu_dereference(
114 hlist_nulls_first_rcu(&st->hash[st->bucket]));
ea781f19 115 if (!is_a_nulls(n))
76507f69 116 return n;
9fb9cbb1
YK		 117 }
118 return NULL;
119}
120
ea781f19
ED		 121static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
122 struct hlist_nulls_node *head)
9fb9cbb1
YK		 123{
124 struct ct_iter_state *st = seq->private;
125
0e60ebe0 126 head = rcu_dereference(hlist_nulls_next_rcu(head));
ea781f19
ED		 127 while (is_a_nulls(head)) {
128 if (likely(get_nulls_value(head) == st->bucket)) {
64b87639 129 if (++st->bucket >= st->htable_size)
ea781f19
ED		 130 return NULL;
131 }
0e60ebe0 132 head = rcu_dereference(
64b87639 133 hlist_nulls_first_rcu(&st->hash[st->bucket]));
9fb9cbb1
YK		 134 }
135 return head;
136}
137
ea781f19 138static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
9fb9cbb1 139{
ea781f19 140 struct hlist_nulls_node *head = ct_get_first(seq);
9fb9cbb1
YK		 141
142 if (head)
143 while (pos && (head = ct_get_next(seq, head)))
144 pos--;
145 return pos ? NULL : head;
146}
147
148static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
76507f69 149 __acquires(RCU)
9fb9cbb1 150{
a992ca2a
PNA		 151 struct ct_iter_state *st = seq->private;
152
d2de875c 153 st->time_now = ktime_get_real_ns();
76507f69 154 rcu_read_lock();
64b87639
LZ		 155
156 nf_conntrack_get_ht(&st->hash, &st->htable_size);
9fb9cbb1
YK		 157 return ct_get_idx(seq, *pos);
158}
159
160static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
161{
162 (*pos)++;
163 return ct_get_next(s, v);
164}
165
166static void ct_seq_stop(struct seq_file *s, void *v)
76507f69 167 __releases(RCU)
9fb9cbb1 168{
76507f69 169 rcu_read_unlock();
9fb9cbb1
YK		 170}
171
1ae4de0c 172#ifdef CONFIG_NF_CONNTRACK_SECMARK
e71456ae 173static void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
1ae4de0c
EP		 174{
175 int ret;
176 u32 len;
177 char *secctx;
178
179 ret = security_secid_to_secctx(ct->secmark, &secctx, &len);
180 if (ret)
e71456ae 181 return;
1ae4de0c 182
e71456ae 183 seq_printf(s, "secctx=%s ", secctx);
1ae4de0c
EP		 184
185 security_release_secctx(secctx, len);
1ae4de0c
EP		 186}
187#else
e71456ae 188static inline void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
1ae4de0c 189{
1ae4de0c
EP		 190}
191#endif
192
308ac914 193#ifdef CONFIG_NF_CONNTRACK_ZONES
deedb590
DB		 194static void ct_show_zone(struct seq_file *s, const struct nf_conn *ct,
195 int dir)
308ac914 196{
deedb590
DB		 197 const struct nf_conntrack_zone *zone = nf_ct_zone(ct);
198
199 if (zone->dir != dir)
200 return;
201 switch (zone->dir) {
202 case NF_CT_DEFAULT_ZONE_DIR:
203 seq_printf(s, "zone=%u ", zone->id);
204 break;
205 case NF_CT_ZONE_DIR_ORIG:
206 seq_printf(s, "zone-orig=%u ", zone->id);
207 break;
208 case NF_CT_ZONE_DIR_REPL:
209 seq_printf(s, "zone-reply=%u ", zone->id);
210 break;
211 default:
212 break;
213 }
308ac914
DB		 214}
215#else
deedb590
DB		 216static inline void ct_show_zone(struct seq_file *s, const struct nf_conn *ct,
217 int dir)
308ac914
DB		 218{
219}
220#endif
221
a992ca2a 222#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
e71456ae 223static void ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct)
a992ca2a 224{
f5c88f56 225 struct ct_iter_state *st = s->private;
a992ca2a 226 struct nf_conn_tstamp *tstamp;
f5c88f56 227 s64 delta_time;
a992ca2a
PNA		 228
229 tstamp = nf_conn_tstamp_find(ct);
230 if (tstamp) {
f5c88f56
PM		 231 delta_time = st->time_now - tstamp->start;
232 if (delta_time > 0)
233 delta_time = div_s64(delta_time, NSEC_PER_SEC);
234 else
235 delta_time = 0;
236
e71456ae
SRRH		 237 seq_printf(s, "delta-time=%llu ",
238 (unsigned long long)delta_time);
a992ca2a 239 }
e71456ae 240 return;
a992ca2a
PNA		 241}
242#else
e71456ae 243static inline void
a992ca2a
PNA		 244ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct)
245{
a992ca2a
PNA		 246}
247#endif
248
a3134d53
FW		 249static const char* l3proto_name(u16 proto)
250{
251 switch (proto) {
252 case AF_INET: return "ipv4";
253 case AF_INET6: return "ipv6";
254 }
255
256 return "unknown";
257}
258
09ec82f5
FW		 259static const char* l4proto_name(u16 proto)
260{
261 switch (proto) {
262 case IPPROTO_ICMP: return "icmp";
263 case IPPROTO_TCP: return "tcp";
264 case IPPROTO_UDP: return "udp";
265 case IPPROTO_DCCP: return "dccp";
266 case IPPROTO_GRE: return "gre";
267 case IPPROTO_SCTP: return "sctp";
268 case IPPROTO_UDPLITE: return "udplite";
fbea3180 269 case IPPROTO_ICMPV6: return "icmpv6";
09ec82f5
FW		 270 }
271
272 return "unknown";
273}
274
4b216e21
FW		 275static unsigned int
276seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir)
277{
278 struct nf_conn_acct *acct;
279 struct nf_conn_counter *counter;
280
281 acct = nf_conn_acct_find(ct);
282 if (!acct)
283 return 0;
284
285 counter = acct->counter;
286 seq_printf(s, "packets=%llu bytes=%llu ",
287 (unsigned long long)atomic64_read(&counter[dir].packets),
288 (unsigned long long)atomic64_read(&counter[dir].bytes));
289
290 return 0;
291}
292
9fb9cbb1
YK		 293/* return 0 on success, 1 in case of error */
294static int ct_seq_show(struct seq_file *s, void *v)
295{
ea781f19
ED		 296 struct nf_conntrack_tuple_hash *hash = v;
297 struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
32948588 298 const struct nf_conntrack_l4proto *l4proto;
e77e6ff5 299 struct net *net = seq_file_net(s);
ea781f19 300 int ret = 0;
9fb9cbb1 301
44d6e2f2 302 WARN_ON(!ct);
ea781f19
ED		 303 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
304 return 0;
9fb9cbb1 305
58e207e4
FW		 306 if (nf_ct_should_gc(ct)) {
307 nf_ct_kill(ct);
308 goto release;
309 }
310
9fb9cbb1
YK		 311 /* we only want to print DIR_ORIGINAL */
312 if (NF_CT_DIRECTION(hash))
ea781f19 313 goto release;
9fb9cbb1 314
e77e6ff5
LZ		 315 if (!net_eq(nf_ct_net(ct), net))
316 goto release;
317
4a60dc74 318 l4proto = nf_ct_l4proto_find(nf_ct_protonum(ct));
9fb9cbb1 319
ea781f19 320 ret = -ENOSPC;
90964016 321 seq_printf(s, "%-8s %u %-8s %u ",
f957be9d 322 l3proto_name(nf_ct_l3num(ct)), nf_ct_l3num(ct),
90964016
PNA		 323 l4proto_name(l4proto->l4proto), nf_ct_protonum(ct));
324
325 if (!test_bit(IPS_OFFLOAD_BIT, &ct->status))
326 seq_printf(s, "%ld ", nf_ct_expires(ct) / HZ);
9fb9cbb1 327
37246a58
SRRH		 328 if (l4proto->print_conntrack)
329 l4proto->print_conntrack(s, ct);
9fb9cbb1 330
824f1fbe 331 print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
f957be9d 332 l4proto);
9fb9cbb1 333
deedb590
DB		 334 ct_show_zone(s, ct, NF_CT_ZONE_DIR_ORIG);
335
e71456ae
SRRH		 336 if (seq_has_overflowed(s))
337 goto release;
338
58401572 339 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
ea781f19 340 goto release;
9fb9cbb1 341
c88130bc 342 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
cdec2685 343 seq_puts(s, "[UNREPLIED] ");
9fb9cbb1 344
f957be9d 345 print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, l4proto);
9fb9cbb1 346
deedb590
DB		 347 ct_show_zone(s, ct, NF_CT_ZONE_DIR_REPL);
348
58401572 349 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
ea781f19 350 goto release;
9fb9cbb1 351
74f99482
BW		 352 if (test_bit(IPS_HW_OFFLOAD_BIT, &ct->status))
353 seq_puts(s, "[HW_OFFLOAD] ");
354 else if (test_bit(IPS_OFFLOAD_BIT, &ct->status))
90964016
PNA		 355 seq_puts(s, "[OFFLOAD] ");
356 else if (test_bit(IPS_ASSURED_BIT, &ct->status))
cdec2685 357 seq_puts(s, "[ASSURED] ");
9fb9cbb1 358
e71456ae 359 if (seq_has_overflowed(s))
ea781f19 360 goto release;
e71456ae
SRRH		 361
362#if defined(CONFIG_NF_CONNTRACK_MARK)
363 seq_printf(s, "mark=%u ", ct->mark);
9fb9cbb1
YK		 364#endif
365
e71456ae 366 ct_show_secctx(s, ct);
deedb590 367 ct_show_zone(s, ct, NF_CT_DEFAULT_ZONE_DIR);
e71456ae
SRRH		 368 ct_show_delta_time(s, ct);
369
370 seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use));
a992ca2a 371
e71456ae 372 if (seq_has_overflowed(s))
ea781f19 373 goto release;
a5d29264 374
ea781f19
ED		 375 ret = 0;
376release:
377 nf_ct_put(ct);
d88d7de0 378 return ret;
9fb9cbb1
YK		 379}
380
56b3d975 381static const struct seq_operations ct_seq_ops = {
9fb9cbb1
YK		 382 .start = ct_seq_start,
383 .next = ct_seq_next,
384 .stop = ct_seq_stop,
385 .show = ct_seq_show
386};
387
9fb9cbb1
YK		 388static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
389{
8e9df801 390 struct net *net = seq_file_net(seq);
9fb9cbb1
YK		 391 int cpu;
392
393 if (*pos == 0)
394 return SEQ_START_TOKEN;
395
0f23174a 396 for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
9fb9cbb1
YK		 397 if (!cpu_possible(cpu))
398 continue;
399 *pos = cpu + 1;
8e9df801 400 return per_cpu_ptr(net->ct.stat, cpu);
9fb9cbb1
YK		 401 }
402
403 return NULL;
404}
405
406static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
407{
8e9df801 408 struct net *net = seq_file_net(seq);
9fb9cbb1
YK		 409 int cpu;
410
0f23174a 411 for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
9fb9cbb1
YK		 412 if (!cpu_possible(cpu))
413 continue;
414 *pos = cpu + 1;
8e9df801 415 return per_cpu_ptr(net->ct.stat, cpu);
9fb9cbb1 416 }
dc15af8e 417 (*pos)++;
9fb9cbb1
YK		 418 return NULL;
419}
420
421static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
422{
423}
424
425static int ct_cpu_seq_show(struct seq_file *seq, void *v)
426{
8e9df801 427 struct net *net = seq_file_net(seq);
32948588 428 const struct ip_conntrack_stat *st = v;
c53bd0e9 429 unsigned int nr_conntracks;
9fb9cbb1
YK		 430
431 if (v == SEQ_START_TOKEN) {
1702ad79 432 seq_puts(seq, "entries clashres found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error expect_new expect_create expect_delete search_restart\n");
9fb9cbb1
YK		 433 return 0;
434 }
435
c53bd0e9
FW		 436 nr_conntracks = nf_conntrack_count(net);
437
9fb9cbb1 438 seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x "
af740b2c 439 "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
9fb9cbb1 440 nr_conntracks,
1702ad79 441 st->clash_resolve,
9fb9cbb1 442 st->found,
8e8118f8 443 0,
9fb9cbb1 444 st->invalid,
4afc41df 445 0,
8e8118f8
FW		 446 0,
447 0,
9fb9cbb1
YK		 448 st->insert,
449 st->insert_failed,
450 st->drop,
451 st->early_drop,
452 st->error,
453
454 st->expect_new,
455 st->expect_create,
af740b2c
JDB		 456 st->expect_delete,
457 st->search_restart
9fb9cbb1
YK		 458 );
459 return 0;
460}
461
56b3d975 462static const struct seq_operations ct_cpu_seq_ops = {
9fb9cbb1
YK		 463 .start = ct_cpu_seq_start,
464 .next = ct_cpu_seq_next,
465 .stop = ct_cpu_seq_stop,
466 .show = ct_cpu_seq_show,
467};
468
b2ce2c74 469static int nf_conntrack_standalone_init_proc(struct net *net)
b916f7d4
AD		 470{
471 struct proc_dir_entry *pde;
f13f2aee
PW		 472 kuid_t root_uid;
473 kgid_t root_gid;
b916f7d4 474
c3506372
CH		 475 pde = proc_create_net("nf_conntrack", 0440, net->proc_net, &ct_seq_ops,
476 sizeof(struct ct_iter_state));
b916f7d4
AD		 477 if (!pde)
478 goto out_nf_conntrack;
52c0e111 479
f13f2aee
PW		 480 root_uid = make_kuid(net->user_ns, 0);
481 root_gid = make_kgid(net->user_ns, 0);
482 if (uid_valid(root_uid) && gid_valid(root_gid))
483 proc_set_user(pde, root_uid, root_gid);
484
c3506372
CH		 485 pde = proc_create_net("nf_conntrack", 0444, net->proc_net_stat,
486 &ct_cpu_seq_ops, sizeof(struct seq_net_private));
b916f7d4
AD		 487 if (!pde)
488 goto out_stat_nf_conntrack;
b916f7d4
AD		 489 return 0;
490
491out_stat_nf_conntrack:
ece31ffd 492 remove_proc_entry("nf_conntrack", net->proc_net);
b916f7d4
AD		 493out_nf_conntrack:
494 return -ENOMEM;
495}
496
b2ce2c74 497static void nf_conntrack_standalone_fini_proc(struct net *net)
b916f7d4 498{
b2ce2c74 499 remove_proc_entry("nf_conntrack", net->proc_net_stat);
ece31ffd 500 remove_proc_entry("nf_conntrack", net->proc_net);
b916f7d4
AD		 501}
502#else
b2ce2c74 503static int nf_conntrack_standalone_init_proc(struct net *net)
b916f7d4
AD		 504{
505 return 0;
506}
507
b2ce2c74 508static void nf_conntrack_standalone_fini_proc(struct net *net)
b916f7d4
AD		 509{
510}
54b07dca 511#endif /* CONFIG_NF_CONNTRACK_PROCFS */
9fb9cbb1 512
c53bd0e9
FW		 513u32 nf_conntrack_count(const struct net *net)
514{
515 const struct nf_conntrack_net *cnet;
516
517 cnet = net_generic(net, nf_conntrack_net_id);
518
519 return atomic_read(&cnet->count);
520}
521EXPORT_SYMBOL_GPL(nf_conntrack_count);
522
9fb9cbb1
YK		 523/* Sysctl support */
524
525#ifdef CONFIG_SYSCTL
3183ab89
FW		 526/* size the user *wants to set */
527static unsigned int nf_conntrack_htable_size_user __read_mostly;
528
529static int
530nf_conntrack_hash_sysctl(struct ctl_table *table, int write,
32927393 531 void *buffer, size_t *lenp, loff_t *ppos)
3183ab89
FW		 532{
533 int ret;
534
f6351c3f
JDB		 535 /* module_param hashsize could have changed value */
536 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
537
3183ab89
FW		 538 ret = proc_dointvec(table, write, buffer, lenp, ppos);
539 if (ret < 0 || !write)
540 return ret;
541
542 /* update ret, we might not be able to satisfy request */
543 ret = nf_conntrack_hash_resize(nf_conntrack_htable_size_user);
544
545 /* update it to the actual value used by conntrack */
546 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
547 return ret;
548}
9fb9cbb1 549
9714be7d 550static struct ctl_table_header *nf_ct_netfilter_header;
9fb9cbb1 551
4a65798a
FW		 552enum nf_ct_sysctl_index {
553 NF_SYSCTL_CT_MAX,
554 NF_SYSCTL_CT_COUNT,
555 NF_SYSCTL_CT_BUCKETS,
556 NF_SYSCTL_CT_CHECKSUM,
557 NF_SYSCTL_CT_LOG_INVALID,
558 NF_SYSCTL_CT_EXPECT_MAX,
d912dec1
FW		 559 NF_SYSCTL_CT_ACCT,
560 NF_SYSCTL_CT_HELPER,
cb2833ed
FW		 561#ifdef CONFIG_NF_CONNTRACK_EVENTS
562 NF_SYSCTL_CT_EVENTS,
563#endif
564#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
565 NF_SYSCTL_CT_TIMESTAMP,
566#endif
b884fa46
FW		 567 NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC,
568 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT,
569 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV,
570 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED,
571 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT,
572 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT,
573 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK,
574 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT,
575 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE,
576 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS,
577 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK,
578 NF_SYSCTL_CT_PROTO_TCP_LOOSE,
579 NF_SYSCTL_CT_PROTO_TCP_LIBERAL,
580 NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS,
581 NF_SYSCTL_CT_PROTO_TIMEOUT_UDP,
582 NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM,
583 NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP,
584 NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6,
585#ifdef CONFIG_NF_CT_PROTO_SCTP
586 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED,
587 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT,
588 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED,
589 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED,
590 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT,
591 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD,
592 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT,
593 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT,
594 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED,
595#endif
596#ifdef CONFIG_NF_CT_PROTO_DCCP
597 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST,
598 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND,
599 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN,
600 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN,
601 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ,
602 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING,
603 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT,
604 NF_SYSCTL_CT_PROTO_DCCP_LOOSE,
605#endif
606#ifdef CONFIG_NF_CT_PROTO_GRE
607 NF_SYSCTL_CT_PROTO_TIMEOUT_GRE,
608 NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM,
609#endif
610
611 __NF_SYSCTL_CT_LAST_SYSCTL,
4a65798a
FW		 612};
613
b884fa46
FW		 614#define NF_SYSCTL_CT_LAST_SYSCTL (__NF_SYSCTL_CT_LAST_SYSCTL + 1)
615
fe2c6338 616static struct ctl_table nf_ct_sysctl_table[] = {
4a65798a 617 [NF_SYSCTL_CT_MAX] = {
9fb9cbb1
YK		 618 .procname = "nf_conntrack_max",
619 .data = &nf_conntrack_max,
620 .maxlen = sizeof(int),
621 .mode = 0644,
6d9f239a 622 .proc_handler = proc_dointvec,
9fb9cbb1 623 },
4a65798a 624 [NF_SYSCTL_CT_COUNT] = {
9fb9cbb1 625 .procname = "nf_conntrack_count",
9fb9cbb1
YK		 626 .maxlen = sizeof(int),
627 .mode = 0444,
6d9f239a 628 .proc_handler = proc_dointvec,
9fb9cbb1 629 },
4a65798a 630 [NF_SYSCTL_CT_BUCKETS] = {
9fb9cbb1 631 .procname = "nf_conntrack_buckets",
3183ab89 632 .data = &nf_conntrack_htable_size_user,
9fb9cbb1 633 .maxlen = sizeof(unsigned int),
3183ab89
FW		 634 .mode = 0644,
635 .proc_handler = nf_conntrack_hash_sysctl,
9fb9cbb1 636 },
4a65798a 637 [NF_SYSCTL_CT_CHECKSUM] = {
39a27a35 638 .procname = "nf_conntrack_checksum",
c04d0552 639 .data = &init_net.ct.sysctl_checksum,
9b1a4d0f 640 .maxlen = sizeof(u8),
39a27a35 641 .mode = 0644,
9b1a4d0f 642 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 643 .extra1 = SYSCTL_ZERO,
644 .extra2 = SYSCTL_ONE,
39a27a35 645 },
4a65798a 646 [NF_SYSCTL_CT_LOG_INVALID] = {
9fb9cbb1 647 .procname = "nf_conntrack_log_invalid",
c2a2c7e0 648 .data = &init_net.ct.sysctl_log_invalid,
9b1a4d0f 649 .maxlen = sizeof(u8),
9fb9cbb1 650 .mode = 0644,
9b1a4d0f 651 .proc_handler = proc_dou8vec_minmax,
9fb9cbb1 652 },
4a65798a 653 [NF_SYSCTL_CT_EXPECT_MAX] = {
f264a7df
PM		 654 .procname = "nf_conntrack_expect_max",
655 .data = &nf_ct_expect_max,
656 .maxlen = sizeof(int),
657 .mode = 0644,
6d9f239a 658 .proc_handler = proc_dointvec,
f264a7df 659 },
d912dec1
FW		 660 [NF_SYSCTL_CT_ACCT] = {
661 .procname = "nf_conntrack_acct",
662 .data = &init_net.ct.sysctl_acct,
9b1a4d0f 663 .maxlen = sizeof(u8),
d912dec1 664 .mode = 0644,
9b1a4d0f 665 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 666 .extra1 = SYSCTL_ZERO,
667 .extra2 = SYSCTL_ONE,
d912dec1
FW		 668 },
669 [NF_SYSCTL_CT_HELPER] = {
670 .procname = "nf_conntrack_helper",
67f28216 671 .maxlen = sizeof(u8),
d912dec1 672 .mode = 0644,
67f28216 673 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 674 .extra1 = SYSCTL_ZERO,
675 .extra2 = SYSCTL_ONE,
d912dec1 676 },
cb2833ed
FW		 677#ifdef CONFIG_NF_CONNTRACK_EVENTS
678 [NF_SYSCTL_CT_EVENTS] = {
679 .procname = "nf_conntrack_events",
680 .data = &init_net.ct.sysctl_events,
9b1a4d0f 681 .maxlen = sizeof(u8),
cb2833ed 682 .mode = 0644,
9b1a4d0f 683 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 684 .extra1 = SYSCTL_ZERO,
685 .extra2 = SYSCTL_ONE,
cb2833ed
FW		 686 },
687#endif
688#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
689 [NF_SYSCTL_CT_TIMESTAMP] = {
690 .procname = "nf_conntrack_timestamp",
691 .data = &init_net.ct.sysctl_tstamp,
9b1a4d0f 692 .maxlen = sizeof(u8),
cb2833ed 693 .mode = 0644,
9b1a4d0f 694 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 695 .extra1 = SYSCTL_ZERO,
696 .extra2 = SYSCTL_ONE,
cb2833ed
FW		 697 },
698#endif
b884fa46
FW		 699 [NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC] = {
700 .procname = "nf_conntrack_generic_timeout",
701 .maxlen = sizeof(unsigned int),
702 .mode = 0644,
703 .proc_handler = proc_dointvec_jiffies,
704 },
705 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT] = {
706 .procname = "nf_conntrack_tcp_timeout_syn_sent",
707 .maxlen = sizeof(unsigned int),
708 .mode = 0644,
709 .proc_handler = proc_dointvec_jiffies,
710 },
711 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV] = {
712 .procname = "nf_conntrack_tcp_timeout_syn_recv",
713 .maxlen = sizeof(unsigned int),
714 .mode = 0644,
715 .proc_handler = proc_dointvec_jiffies,
716 },
717 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED] = {
718 .procname = "nf_conntrack_tcp_timeout_established",
719 .maxlen = sizeof(unsigned int),
720 .mode = 0644,
721 .proc_handler = proc_dointvec_jiffies,
722 },
723 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT] = {
724 .procname = "nf_conntrack_tcp_timeout_fin_wait",
725 .maxlen = sizeof(unsigned int),
726 .mode = 0644,
727 .proc_handler = proc_dointvec_jiffies,
728 },
729 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT] = {
730 .procname = "nf_conntrack_tcp_timeout_close_wait",
731 .maxlen = sizeof(unsigned int),
732 .mode = 0644,
733 .proc_handler = proc_dointvec_jiffies,
734 },
735 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK] = {
736 .procname = "nf_conntrack_tcp_timeout_last_ack",
737 .maxlen = sizeof(unsigned int),
738 .mode = 0644,
739 .proc_handler = proc_dointvec_jiffies,
740 },
741 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT] = {
742 .procname = "nf_conntrack_tcp_timeout_time_wait",
743 .maxlen = sizeof(unsigned int),
744 .mode = 0644,
745 .proc_handler = proc_dointvec_jiffies,
746 },
747 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE] = {
748 .procname = "nf_conntrack_tcp_timeout_close",
749 .maxlen = sizeof(unsigned int),
750 .mode = 0644,
751 .proc_handler = proc_dointvec_jiffies,
752 },
753 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS] = {
754 .procname = "nf_conntrack_tcp_timeout_max_retrans",
755 .maxlen = sizeof(unsigned int),
756 .mode = 0644,
757 .proc_handler = proc_dointvec_jiffies,
758 },
759 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK] = {
760 .procname = "nf_conntrack_tcp_timeout_unacknowledged",
761 .maxlen = sizeof(unsigned int),
762 .mode = 0644,
763 .proc_handler = proc_dointvec_jiffies,
764 },
765 [NF_SYSCTL_CT_PROTO_TCP_LOOSE] = {
766 .procname = "nf_conntrack_tcp_loose",
9b1a4d0f 767 .maxlen = sizeof(u8),
b884fa46 768 .mode = 0644,
9b1a4d0f 769 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 770 .extra1 = SYSCTL_ZERO,
771 .extra2 = SYSCTL_ONE,
b884fa46
FW		 772 },
773 [NF_SYSCTL_CT_PROTO_TCP_LIBERAL] = {
774 .procname = "nf_conntrack_tcp_be_liberal",
9b1a4d0f 775 .maxlen = sizeof(u8),
b884fa46 776 .mode = 0644,
9b1a4d0f 777 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 778 .extra1 = SYSCTL_ZERO,
779 .extra2 = SYSCTL_ONE,
b884fa46
FW		 780 },
781 [NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS] = {
782 .procname = "nf_conntrack_tcp_max_retrans",
9b1a4d0f 783 .maxlen = sizeof(u8),
b884fa46 784 .mode = 0644,
9b1a4d0f 785 .proc_handler = proc_dou8vec_minmax,
b884fa46
FW		 786 },
787 [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP] = {
788 .procname = "nf_conntrack_udp_timeout",
789 .maxlen = sizeof(unsigned int),
790 .mode = 0644,
791 .proc_handler = proc_dointvec_jiffies,
792 },
793 [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM] = {
794 .procname = "nf_conntrack_udp_timeout_stream",
795 .maxlen = sizeof(unsigned int),
796 .mode = 0644,
797 .proc_handler = proc_dointvec_jiffies,
798 },
799 [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP] = {
800 .procname = "nf_conntrack_icmp_timeout",
801 .maxlen = sizeof(unsigned int),
802 .mode = 0644,
803 .proc_handler = proc_dointvec_jiffies,
804 },
805 [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6] = {
806 .procname = "nf_conntrack_icmpv6_timeout",
807 .maxlen = sizeof(unsigned int),
808 .mode = 0644,
809 .proc_handler = proc_dointvec_jiffies,
810 },
811#ifdef CONFIG_NF_CT_PROTO_SCTP
812 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED] = {
813 .procname = "nf_conntrack_sctp_timeout_closed",
814 .maxlen = sizeof(unsigned int),
815 .mode = 0644,
816 .proc_handler = proc_dointvec_jiffies,
817 },
818 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT] = {
819 .procname = "nf_conntrack_sctp_timeout_cookie_wait",
820 .maxlen = sizeof(unsigned int),
821 .mode = 0644,
822 .proc_handler = proc_dointvec_jiffies,
823 },
824 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED] = {
825 .procname = "nf_conntrack_sctp_timeout_cookie_echoed",
826 .maxlen = sizeof(unsigned int),
827 .mode = 0644,
828 .proc_handler = proc_dointvec_jiffies,
829 },
830 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED] = {
831 .procname = "nf_conntrack_sctp_timeout_established",
832 .maxlen = sizeof(unsigned int),
833 .mode = 0644,
834 .proc_handler = proc_dointvec_jiffies,
835 },
836 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT] = {
837 .procname = "nf_conntrack_sctp_timeout_shutdown_sent",
838 .maxlen = sizeof(unsigned int),
839 .mode = 0644,
840 .proc_handler = proc_dointvec_jiffies,
841 },
842 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD] = {
843 .procname = "nf_conntrack_sctp_timeout_shutdown_recd",
844 .maxlen = sizeof(unsigned int),
845 .mode = 0644,
846 .proc_handler = proc_dointvec_jiffies,
847 },
848 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT] = {
849 .procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
850 .maxlen = sizeof(unsigned int),
851 .mode = 0644,
852 .proc_handler = proc_dointvec_jiffies,
853 },
854 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT] = {
855 .procname = "nf_conntrack_sctp_timeout_heartbeat_sent",
856 .maxlen = sizeof(unsigned int),
857 .mode = 0644,
858 .proc_handler = proc_dointvec_jiffies,
859 },
860 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED] = {
861 .procname = "nf_conntrack_sctp_timeout_heartbeat_acked",
862 .maxlen = sizeof(unsigned int),
863 .mode = 0644,
864 .proc_handler = proc_dointvec_jiffies,
865 },
866#endif
867#ifdef CONFIG_NF_CT_PROTO_DCCP
868 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST] = {
869 .procname = "nf_conntrack_dccp_timeout_request",
870 .maxlen = sizeof(unsigned int),
871 .mode = 0644,
872 .proc_handler = proc_dointvec_jiffies,
873 },
874 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND] = {
875 .procname = "nf_conntrack_dccp_timeout_respond",
876 .maxlen = sizeof(unsigned int),
877 .mode = 0644,
878 .proc_handler = proc_dointvec_jiffies,
879 },
880 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN] = {
881 .procname = "nf_conntrack_dccp_timeout_partopen",
882 .maxlen = sizeof(unsigned int),
883 .mode = 0644,
884 .proc_handler = proc_dointvec_jiffies,
885 },
886 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN] = {
887 .procname = "nf_conntrack_dccp_timeout_open",
888 .maxlen = sizeof(unsigned int),
889 .mode = 0644,
890 .proc_handler = proc_dointvec_jiffies,
891 },
892 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ] = {
893 .procname = "nf_conntrack_dccp_timeout_closereq",
894 .maxlen = sizeof(unsigned int),
895 .mode = 0644,
896 .proc_handler = proc_dointvec_jiffies,
897 },
898 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING] = {
899 .procname = "nf_conntrack_dccp_timeout_closing",
900 .maxlen = sizeof(unsigned int),
901 .mode = 0644,
902 .proc_handler = proc_dointvec_jiffies,
903 },
904 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT] = {
905 .procname = "nf_conntrack_dccp_timeout_timewait",
906 .maxlen = sizeof(unsigned int),
907 .mode = 0644,
908 .proc_handler = proc_dointvec_jiffies,
909 },
910 [NF_SYSCTL_CT_PROTO_DCCP_LOOSE] = {
911 .procname = "nf_conntrack_dccp_loose",
9b1a4d0f 912 .maxlen = sizeof(u8),
b884fa46 913 .mode = 0644,
9b1a4d0f 914 .proc_handler = proc_dou8vec_minmax,
e84fb4b3
MC		 915 .extra1 = SYSCTL_ZERO,
916 .extra2 = SYSCTL_ONE,
b884fa46
FW		 917 },
918#endif
919#ifdef CONFIG_NF_CT_PROTO_GRE
920 [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE] = {
921 .procname = "nf_conntrack_gre_timeout",
922 .maxlen = sizeof(unsigned int),
923 .mode = 0644,
924 .proc_handler = proc_dointvec_jiffies,
925 },
926 [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM] = {
927 .procname = "nf_conntrack_gre_timeout_stream",
928 .maxlen = sizeof(unsigned int),
929 .mode = 0644,
930 .proc_handler = proc_dointvec_jiffies,
931 },
932#endif
933 {}
9fb9cbb1
YK		 934};
935
fe2c6338 936static struct ctl_table nf_ct_netfilter_table[] = {
9fb9cbb1 937 {
9fb9cbb1
YK		 938 .procname = "nf_conntrack_max",
939 .data = &nf_conntrack_max,
940 .maxlen = sizeof(int),
941 .mode = 0644,
6d9f239a 942 .proc_handler = proc_dointvec,
9fb9cbb1 943 },
f8572d8f 944 { }
9fb9cbb1
YK		 945};
946
b884fa46
FW		 947static void nf_conntrack_standalone_init_tcp_sysctl(struct net *net,
948 struct ctl_table *table)
949{
950 struct nf_tcp_net *tn = nf_tcp_pernet(net);
951
952#define XASSIGN(XNAME, tn) \
953 table[NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ ## XNAME].data = \
954 &(tn)->timeouts[TCP_CONNTRACK_ ## XNAME]
955
956 XASSIGN(SYN_SENT, tn);
957 XASSIGN(SYN_RECV, tn);
958 XASSIGN(ESTABLISHED, tn);
959 XASSIGN(FIN_WAIT, tn);
960 XASSIGN(CLOSE_WAIT, tn);
961 XASSIGN(LAST_ACK, tn);
962 XASSIGN(TIME_WAIT, tn);
963 XASSIGN(CLOSE, tn);
964 XASSIGN(RETRANS, tn);
965 XASSIGN(UNACK, tn);
966#undef XASSIGN
967#define XASSIGN(XNAME, rval) \
968 table[NF_SYSCTL_CT_PROTO_TCP_ ## XNAME].data = (rval)
969
970 XASSIGN(LOOSE, &tn->tcp_loose);
971 XASSIGN(LIBERAL, &tn->tcp_be_liberal);
972 XASSIGN(MAX_RETRANS, &tn->tcp_max_retrans);
973#undef XASSIGN
974}
975
976static void nf_conntrack_standalone_init_sctp_sysctl(struct net *net,
977 struct ctl_table *table)
978{
979#ifdef CONFIG_NF_CT_PROTO_SCTP
980 struct nf_sctp_net *sn = nf_sctp_pernet(net);
981
982#define XASSIGN(XNAME, sn) \
983 table[NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ ## XNAME].data = \
984 &(sn)->timeouts[SCTP_CONNTRACK_ ## XNAME]
985
986 XASSIGN(CLOSED, sn);
987 XASSIGN(COOKIE_WAIT, sn);
988 XASSIGN(COOKIE_ECHOED, sn);
989 XASSIGN(ESTABLISHED, sn);
990 XASSIGN(SHUTDOWN_SENT, sn);
991 XASSIGN(SHUTDOWN_RECD, sn);
992 XASSIGN(SHUTDOWN_ACK_SENT, sn);
993 XASSIGN(HEARTBEAT_SENT, sn);
994 XASSIGN(HEARTBEAT_ACKED, sn);
995#undef XASSIGN
996#endif
997}
998
999static void nf_conntrack_standalone_init_dccp_sysctl(struct net *net,
1000 struct ctl_table *table)
1001{
1002#ifdef CONFIG_NF_CT_PROTO_DCCP
1003 struct nf_dccp_net *dn = nf_dccp_pernet(net);
1004
1005#define XASSIGN(XNAME, dn) \
1006 table[NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_ ## XNAME].data = \
1007 &(dn)->dccp_timeout[CT_DCCP_ ## XNAME]
1008
1009 XASSIGN(REQUEST, dn);
1010 XASSIGN(RESPOND, dn);
1011 XASSIGN(PARTOPEN, dn);
1012 XASSIGN(OPEN, dn);
1013 XASSIGN(CLOSEREQ, dn);
1014 XASSIGN(CLOSING, dn);
1015 XASSIGN(TIMEWAIT, dn);
1016#undef XASSIGN
1017
1018 table[NF_SYSCTL_CT_PROTO_DCCP_LOOSE].data = &dn->dccp_loose;
1019#endif
1020}
1021
1022static void nf_conntrack_standalone_init_gre_sysctl(struct net *net,
1023 struct ctl_table *table)
1024{
1025#ifdef CONFIG_NF_CT_PROTO_GRE
1026 struct nf_gre_net *gn = nf_gre_pernet(net);
1027
1028 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE].data = &gn->timeouts[GRE_CT_UNREPLIED];
1029 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM].data = &gn->timeouts[GRE_CT_REPLIED];
1030#endif
1031}
1032
80250707 1033static int nf_conntrack_standalone_init_sysctl(struct net *net)
b916f7d4 1034{
7b597470 1035 struct nf_conntrack_net *cnet = net_generic(net, nf_conntrack_net_id);
b884fa46 1036 struct nf_udp_net *un = nf_udp_pernet(net);
80250707
AD		 1037 struct ctl_table *table;
1038
b884fa46
FW		 1039 BUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL);
1040
80250707
AD		 1041 table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
1042 GFP_KERNEL);
1043 if (!table)
b884fa46 1044 return -ENOMEM;
80250707 1045
c53bd0e9 1046 table[NF_SYSCTL_CT_COUNT].data = &cnet->count;
4a65798a
FW		 1047 table[NF_SYSCTL_CT_CHECKSUM].data = &net->ct.sysctl_checksum;
1048 table[NF_SYSCTL_CT_LOG_INVALID].data = &net->ct.sysctl_log_invalid;
478553fd 1049 table[NF_SYSCTL_CT_ACCT].data = &net->ct.sysctl_acct;
67f28216 1050 table[NF_SYSCTL_CT_HELPER].data = &cnet->sysctl_auto_assign_helper;
cb2833ed
FW		 1051#ifdef CONFIG_NF_CONNTRACK_EVENTS
1052 table[NF_SYSCTL_CT_EVENTS].data = &net->ct.sysctl_events;
478553fd
FW		 1053#endif
1054#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
1055 table[NF_SYSCTL_CT_TIMESTAMP].data = &net->ct.sysctl_tstamp;
cb2833ed 1056#endif
b884fa46
FW		 1057 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC].data = &nf_generic_pernet(net)->timeout;
1058 table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP].data = &nf_icmp_pernet(net)->timeout;
1059 table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6].data = &nf_icmpv6_pernet(net)->timeout;
1060 table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP].data = &un->timeouts[UDP_CT_UNREPLIED];
1061 table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM].data = &un->timeouts[UDP_CT_REPLIED];
1062
1063 nf_conntrack_standalone_init_tcp_sysctl(net, table);
1064 nf_conntrack_standalone_init_sctp_sysctl(net, table);
1065 nf_conntrack_standalone_init_dccp_sysctl(net, table);
1066 nf_conntrack_standalone_init_gre_sysctl(net, table);
80250707 1067
2671fa4d
JR		 1068 /* Don't allow non-init_net ns to alter global sysctls */
1069 if (!net_eq(&init_net, net)) {
d0febd81
FW		 1070 table[NF_SYSCTL_CT_MAX].mode = 0444;
1071 table[NF_SYSCTL_CT_EXPECT_MAX].mode = 0444;
d0febd81
FW		 1072 table[NF_SYSCTL_CT_BUCKETS].mode = 0444;
1073 }
3183ab89 1074
7b597470
FW		 1075 cnet->sysctl_header = register_net_sysctl(net, "net/netfilter", table);
1076 if (!cnet->sysctl_header)
9714be7d
KPO		 1077 goto out_unregister_netfilter;
1078
b916f7d4
AD		 1079 return 0;
1080
9714be7d 1081out_unregister_netfilter:
80250707 1082 kfree(table);
9714be7d 1083 return -ENOMEM;
b916f7d4
AD		 1084}
1085
80250707 1086static void nf_conntrack_standalone_fini_sysctl(struct net *net)
b916f7d4 1087{
7b597470 1088 struct nf_conntrack_net *cnet = net_generic(net, nf_conntrack_net_id);
80250707
AD		 1089 struct ctl_table *table;
1090
7b597470
FW		 1091 table = cnet->sysctl_header->ctl_table_arg;
1092 unregister_net_sysctl_table(cnet->sysctl_header);
80250707 1093 kfree(table);
b916f7d4
AD		 1094}
1095#else
80250707 1096static int nf_conntrack_standalone_init_sysctl(struct net *net)
b916f7d4
AD		 1097{
1098 return 0;
1099}
1100
80250707 1101static void nf_conntrack_standalone_fini_sysctl(struct net *net)
b916f7d4
AD		 1102{
1103}
9fb9cbb1
YK		 1104#endif /* CONFIG_SYSCTL */
1105
ba3fbe66
PNA		 1106static void nf_conntrack_fini_net(struct net *net)
1107{
1108 if (enable_hooks)
1109 nf_ct_netns_put(net, NFPROTO_INET);
1110
1111 nf_conntrack_standalone_fini_proc(net);
1112 nf_conntrack_standalone_fini_sysctl(net);
1113}
1114
f94161c1 1115static int nf_conntrack_pernet_init(struct net *net)
dfdb8d79 1116{
b2ce2c74
AD		 1117 int ret;
1118
b884fa46
FW		 1119 net->ct.sysctl_checksum = 1;
1120
1121 ret = nf_conntrack_standalone_init_sysctl(net);
b2ce2c74 1122 if (ret < 0)
b884fa46 1123 return ret;
f94161c1 1124
b2ce2c74
AD		 1125 ret = nf_conntrack_standalone_init_proc(net);
1126 if (ret < 0)
1127 goto out_proc;
f94161c1 1128
b884fa46 1129 ret = nf_conntrack_init_net(net);
80250707 1130 if (ret < 0)
b884fa46 1131 goto out_init_net;
f94161c1 1132
ba3fbe66
PNA		 1133 if (enable_hooks) {
1134 ret = nf_ct_netns_get(net, NFPROTO_INET);
1135 if (ret < 0)
1136 goto out_hooks;
1137 }
1138
b2ce2c74
AD		 1139 return 0;
1140
ba3fbe66 1141out_hooks:
ac088a88 1142 nf_conntrack_cleanup_net(net);
b884fa46 1143out_init_net:
80250707 1144 nf_conntrack_standalone_fini_proc(net);
b2ce2c74 1145out_proc:
ac088a88 1146 nf_conntrack_standalone_fini_sysctl(net);
b2ce2c74 1147 return ret;
dfdb8d79
AD		 1148}
1149
dece40e8 1150static void nf_conntrack_pernet_exit(struct list_head *net_exit_list)
dfdb8d79 1151{
dece40e8
VD		 1152 struct net *net;
1153
ba3fbe66
PNA		 1154 list_for_each_entry(net, net_exit_list, exit_list)
1155 nf_conntrack_fini_net(net);
1156
dece40e8 1157 nf_conntrack_cleanup_net_list(net_exit_list);
dfdb8d79
AD		 1158}
1159
1160static struct pernet_operations nf_conntrack_net_ops = {
dece40e8
VD		 1161 .init = nf_conntrack_pernet_init,
1162 .exit_batch = nf_conntrack_pernet_exit,
a0ae2562
FW		 1163 .id = &nf_conntrack_net_id,
1164 .size = sizeof(struct nf_conntrack_net),
dfdb8d79
AD		 1165};
1166
65b4b4e8 1167static int __init nf_conntrack_standalone_init(void)
9fb9cbb1 1168{
f94161c1
G		 1169 int ret = nf_conntrack_init_start();
1170 if (ret < 0)
1171 goto out_start;
1172
a9e419dc
FW		 1173 BUILD_BUG_ON(NFCT_INFOMASK <= IP_CT_NUMBER);
1174
5f9f946b 1175#ifdef CONFIG_SYSCTL
f94161c1
G		 1176 nf_ct_netfilter_header =
1177 register_net_sysctl(&init_net, "net", nf_ct_netfilter_table);
5f9f946b
PNA		 1178 if (!nf_ct_netfilter_header) {
1179 pr_err("nf_conntrack: can't register to sysctl.\n");
5389090b 1180 ret = -ENOMEM;
f94161c1 1181 goto out_sysctl;
5f9f946b 1182 }
3183ab89
FW		 1183
1184 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
5f9f946b 1185#endif
f94161c1
G		 1186
1187 ret = register_pernet_subsys(&nf_conntrack_net_ops);
1188 if (ret < 0)
1189 goto out_pernet;
1190
1191 nf_conntrack_init_end();
1192 return 0;
1193
1194out_pernet:
5f9f946b 1195#ifdef CONFIG_SYSCTL
f94161c1
G		 1196 unregister_net_sysctl_table(nf_ct_netfilter_header);
1197out_sysctl:
5f9f946b 1198#endif
f94161c1
G		 1199 nf_conntrack_cleanup_end();
1200out_start:
1201 return ret;
9fb9cbb1
YK		 1202}
1203
65b4b4e8 1204static void __exit nf_conntrack_standalone_fini(void)
9fb9cbb1 1205{
f94161c1 1206 nf_conntrack_cleanup_start();
dfdb8d79 1207 unregister_pernet_subsys(&nf_conntrack_net_ops);
5f9f946b 1208#ifdef CONFIG_SYSCTL
f94161c1 1209 unregister_net_sysctl_table(nf_ct_netfilter_header);
5f9f946b 1210#endif
1e47ee83 1211 nf_conntrack_cleanup_end();
9fb9cbb1
YK		 1212}
1213
65b4b4e8
AM		 1214module_init(nf_conntrack_standalone_init);
1215module_exit(nf_conntrack_standalone_fini);
Linux 6.x block layer and io_uring tree(s)