]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blame - net/netfilter/nf_conntrack_standalone.c
projects / mirror_ubuntu-hirsute-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
netfilter: conntrack: skip identical origin tuple in same zone only
[mirror_ubuntu-hirsute-kernel.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";
269 }
270
271 return "unknown";
272}
273
4b216e21
FW		 274static unsigned int
275seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir)
276{
277 struct nf_conn_acct *acct;
278 struct nf_conn_counter *counter;
279
280 acct = nf_conn_acct_find(ct);
281 if (!acct)
282 return 0;
283
284 counter = acct->counter;
285 seq_printf(s, "packets=%llu bytes=%llu ",
286 (unsigned long long)atomic64_read(&counter[dir].packets),
287 (unsigned long long)atomic64_read(&counter[dir].bytes));
288
289 return 0;
290}
291
9fb9cbb1
YK		 292/* return 0 on success, 1 in case of error */
293static int ct_seq_show(struct seq_file *s, void *v)
294{
ea781f19
ED		 295 struct nf_conntrack_tuple_hash *hash = v;
296 struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
32948588 297 const struct nf_conntrack_l4proto *l4proto;
e77e6ff5 298 struct net *net = seq_file_net(s);
ea781f19 299 int ret = 0;
9fb9cbb1 300
44d6e2f2 301 WARN_ON(!ct);
ea781f19
ED		 302 if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
303 return 0;
9fb9cbb1 304
58e207e4
FW		 305 if (nf_ct_should_gc(ct)) {
306 nf_ct_kill(ct);
307 goto release;
308 }
309
9fb9cbb1
YK		 310 /* we only want to print DIR_ORIGINAL */
311 if (NF_CT_DIRECTION(hash))
ea781f19 312 goto release;
9fb9cbb1 313
e77e6ff5
LZ		 314 if (!net_eq(nf_ct_net(ct), net))
315 goto release;
316
4a60dc74 317 l4proto = nf_ct_l4proto_find(nf_ct_protonum(ct));
9fb9cbb1 318
ea781f19 319 ret = -ENOSPC;
90964016 320 seq_printf(s, "%-8s %u %-8s %u ",
f957be9d 321 l3proto_name(nf_ct_l3num(ct)), nf_ct_l3num(ct),
90964016
PNA		 322 l4proto_name(l4proto->l4proto), nf_ct_protonum(ct));
323
324 if (!test_bit(IPS_OFFLOAD_BIT, &ct->status))
325 seq_printf(s, "%ld ", nf_ct_expires(ct) / HZ);
9fb9cbb1 326
37246a58
SRRH		 327 if (l4proto->print_conntrack)
328 l4proto->print_conntrack(s, ct);
9fb9cbb1 329
824f1fbe 330 print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
f957be9d 331 l4proto);
9fb9cbb1 332
deedb590
DB		 333 ct_show_zone(s, ct, NF_CT_ZONE_DIR_ORIG);
334
e71456ae
SRRH		 335 if (seq_has_overflowed(s))
336 goto release;
337
58401572 338 if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
ea781f19 339 goto release;
9fb9cbb1 340
c88130bc 341 if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
cdec2685 342 seq_puts(s, "[UNREPLIED] ");
9fb9cbb1 343
f957be9d 344 print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, l4proto);
9fb9cbb1 345
deedb590
DB		 346 ct_show_zone(s, ct, NF_CT_ZONE_DIR_REPL);
347
58401572 348 if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
ea781f19 349 goto release;
9fb9cbb1 350
74f99482
BW		 351 if (test_bit(IPS_HW_OFFLOAD_BIT, &ct->status))
352 seq_puts(s, "[HW_OFFLOAD] ");
353 else if (test_bit(IPS_OFFLOAD_BIT, &ct->status))
90964016
PNA		 354 seq_puts(s, "[OFFLOAD] ");
355 else if (test_bit(IPS_ASSURED_BIT, &ct->status))
cdec2685 356 seq_puts(s, "[ASSURED] ");
9fb9cbb1 357
e71456ae 358 if (seq_has_overflowed(s))
ea781f19 359 goto release;
e71456ae
SRRH		 360
361#if defined(CONFIG_NF_CONNTRACK_MARK)
362 seq_printf(s, "mark=%u ", ct->mark);
9fb9cbb1
YK		 363#endif
364
e71456ae 365 ct_show_secctx(s, ct);
deedb590 366 ct_show_zone(s, ct, NF_CT_DEFAULT_ZONE_DIR);
e71456ae
SRRH		 367 ct_show_delta_time(s, ct);
368
369 seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use));
a992ca2a 370
e71456ae 371 if (seq_has_overflowed(s))
ea781f19 372 goto release;
a5d29264 373
ea781f19
ED		 374 ret = 0;
375release:
376 nf_ct_put(ct);
d88d7de0 377 return ret;
9fb9cbb1
YK		 378}
379
56b3d975 380static const struct seq_operations ct_seq_ops = {
9fb9cbb1
YK		 381 .start = ct_seq_start,
382 .next = ct_seq_next,
383 .stop = ct_seq_stop,
384 .show = ct_seq_show
385};
386
9fb9cbb1
YK		 387static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
388{
8e9df801 389 struct net *net = seq_file_net(seq);
9fb9cbb1
YK		 390 int cpu;
391
392 if (*pos == 0)
393 return SEQ_START_TOKEN;
394
0f23174a 395 for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
9fb9cbb1
YK		 396 if (!cpu_possible(cpu))
397 continue;
398 *pos = cpu + 1;
8e9df801 399 return per_cpu_ptr(net->ct.stat, cpu);
9fb9cbb1
YK		 400 }
401
402 return NULL;
403}
404
405static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
406{
8e9df801 407 struct net *net = seq_file_net(seq);
9fb9cbb1
YK		 408 int cpu;
409
0f23174a 410 for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
9fb9cbb1
YK		 411 if (!cpu_possible(cpu))
412 continue;
413 *pos = cpu + 1;
8e9df801 414 return per_cpu_ptr(net->ct.stat, cpu);
9fb9cbb1 415 }
dc15af8e 416 (*pos)++;
9fb9cbb1
YK		 417 return NULL;
418}
419
420static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
421{
422}
423
424static int ct_cpu_seq_show(struct seq_file *seq, void *v)
425{
8e9df801
AD		 426 struct net *net = seq_file_net(seq);
427 unsigned int nr_conntracks = atomic_read(&net->ct.count);
32948588 428 const struct ip_conntrack_stat *st = v;
9fb9cbb1
YK		 429
430 if (v == SEQ_START_TOKEN) {
1702ad79 431 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		 432 return 0;
433 }
434
435 seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x "
af740b2c 436 "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
9fb9cbb1 437 nr_conntracks,
1702ad79 438 st->clash_resolve,
9fb9cbb1 439 st->found,
8e8118f8 440 0,
9fb9cbb1 441 st->invalid,
4afc41df 442 0,
8e8118f8
FW		 443 0,
444 0,
9fb9cbb1
YK		 445 st->insert,
446 st->insert_failed,
447 st->drop,
448 st->early_drop,
449 st->error,
450
451 st->expect_new,
452 st->expect_create,
af740b2c
JDB		 453 st->expect_delete,
454 st->search_restart
9fb9cbb1
YK		 455 );
456 return 0;
457}
458
56b3d975 459static const struct seq_operations ct_cpu_seq_ops = {
9fb9cbb1
YK		 460 .start = ct_cpu_seq_start,
461 .next = ct_cpu_seq_next,
462 .stop = ct_cpu_seq_stop,
463 .show = ct_cpu_seq_show,
464};
465
b2ce2c74 466static int nf_conntrack_standalone_init_proc(struct net *net)
b916f7d4
AD		 467{
468 struct proc_dir_entry *pde;
f13f2aee
PW		 469 kuid_t root_uid;
470 kgid_t root_gid;
b916f7d4 471
c3506372
CH		 472 pde = proc_create_net("nf_conntrack", 0440, net->proc_net, &ct_seq_ops,
473 sizeof(struct ct_iter_state));
b916f7d4
AD		 474 if (!pde)
475 goto out_nf_conntrack;
52c0e111 476
f13f2aee
PW		 477 root_uid = make_kuid(net->user_ns, 0);
478 root_gid = make_kgid(net->user_ns, 0);
479 if (uid_valid(root_uid) && gid_valid(root_gid))
480 proc_set_user(pde, root_uid, root_gid);
481
c3506372
CH		 482 pde = proc_create_net("nf_conntrack", 0444, net->proc_net_stat,
483 &ct_cpu_seq_ops, sizeof(struct seq_net_private));
b916f7d4
AD		 484 if (!pde)
485 goto out_stat_nf_conntrack;
b916f7d4
AD		 486 return 0;
487
488out_stat_nf_conntrack:
ece31ffd 489 remove_proc_entry("nf_conntrack", net->proc_net);
b916f7d4
AD		 490out_nf_conntrack:
491 return -ENOMEM;
492}
493
b2ce2c74 494static void nf_conntrack_standalone_fini_proc(struct net *net)
b916f7d4 495{
b2ce2c74 496 remove_proc_entry("nf_conntrack", net->proc_net_stat);
ece31ffd 497 remove_proc_entry("nf_conntrack", net->proc_net);
b916f7d4
AD		 498}
499#else
b2ce2c74 500static int nf_conntrack_standalone_init_proc(struct net *net)
b916f7d4
AD		 501{
502 return 0;
503}
504
b2ce2c74 505static void nf_conntrack_standalone_fini_proc(struct net *net)
b916f7d4
AD		 506{
507}
54b07dca 508#endif /* CONFIG_NF_CONNTRACK_PROCFS */
9fb9cbb1
YK		 509
510/* Sysctl support */
511
512#ifdef CONFIG_SYSCTL
9fb9cbb1 513/* Log invalid packets of a given protocol */
3183ab89
FW		 514static int log_invalid_proto_min __read_mostly;
515static int log_invalid_proto_max __read_mostly = 255;
516
517/* size the user *wants to set */
518static unsigned int nf_conntrack_htable_size_user __read_mostly;
519
520static int
521nf_conntrack_hash_sysctl(struct ctl_table *table, int write,
32927393 522 void *buffer, size_t *lenp, loff_t *ppos)
3183ab89
FW		 523{
524 int ret;
525
f6351c3f
JDB		 526 /* module_param hashsize could have changed value */
527 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
528
3183ab89
FW		 529 ret = proc_dointvec(table, write, buffer, lenp, ppos);
530 if (ret < 0 || !write)
531 return ret;
532
533 /* update ret, we might not be able to satisfy request */
534 ret = nf_conntrack_hash_resize(nf_conntrack_htable_size_user);
535
536 /* update it to the actual value used by conntrack */
537 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
538 return ret;
539}
9fb9cbb1 540
9714be7d 541static struct ctl_table_header *nf_ct_netfilter_header;
9fb9cbb1 542
4a65798a
FW		 543enum nf_ct_sysctl_index {
544 NF_SYSCTL_CT_MAX,
545 NF_SYSCTL_CT_COUNT,
546 NF_SYSCTL_CT_BUCKETS,
547 NF_SYSCTL_CT_CHECKSUM,
548 NF_SYSCTL_CT_LOG_INVALID,
549 NF_SYSCTL_CT_EXPECT_MAX,
d912dec1
FW		 550 NF_SYSCTL_CT_ACCT,
551 NF_SYSCTL_CT_HELPER,
cb2833ed
FW		 552#ifdef CONFIG_NF_CONNTRACK_EVENTS
553 NF_SYSCTL_CT_EVENTS,
554#endif
555#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
556 NF_SYSCTL_CT_TIMESTAMP,
557#endif
b884fa46
FW		 558 NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC,
559 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT,
560 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV,
561 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED,
562 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT,
563 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT,
564 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK,
565 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT,
566 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE,
567 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS,
568 NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK,
569 NF_SYSCTL_CT_PROTO_TCP_LOOSE,
570 NF_SYSCTL_CT_PROTO_TCP_LIBERAL,
571 NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS,
572 NF_SYSCTL_CT_PROTO_TIMEOUT_UDP,
573 NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM,
574 NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP,
575 NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6,
576#ifdef CONFIG_NF_CT_PROTO_SCTP
577 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED,
578 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT,
579 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED,
580 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED,
581 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT,
582 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD,
583 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT,
584 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT,
585 NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED,
586#endif
587#ifdef CONFIG_NF_CT_PROTO_DCCP
588 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST,
589 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND,
590 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN,
591 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN,
592 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ,
593 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING,
594 NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT,
595 NF_SYSCTL_CT_PROTO_DCCP_LOOSE,
596#endif
597#ifdef CONFIG_NF_CT_PROTO_GRE
598 NF_SYSCTL_CT_PROTO_TIMEOUT_GRE,
599 NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM,
600#endif
601
602 __NF_SYSCTL_CT_LAST_SYSCTL,
4a65798a
FW		 603};
604
b884fa46
FW		 605#define NF_SYSCTL_CT_LAST_SYSCTL (__NF_SYSCTL_CT_LAST_SYSCTL + 1)
606
fe2c6338 607static struct ctl_table nf_ct_sysctl_table[] = {
4a65798a 608 [NF_SYSCTL_CT_MAX] = {
9fb9cbb1
YK		 609 .procname = "nf_conntrack_max",
610 .data = &nf_conntrack_max,
611 .maxlen = sizeof(int),
612 .mode = 0644,
6d9f239a 613 .proc_handler = proc_dointvec,
9fb9cbb1 614 },
4a65798a 615 [NF_SYSCTL_CT_COUNT] = {
9fb9cbb1 616 .procname = "nf_conntrack_count",
49ac8713 617 .data = &init_net.ct.count,
9fb9cbb1
YK		 618 .maxlen = sizeof(int),
619 .mode = 0444,
6d9f239a 620 .proc_handler = proc_dointvec,
9fb9cbb1 621 },
4a65798a 622 [NF_SYSCTL_CT_BUCKETS] = {
9fb9cbb1 623 .procname = "nf_conntrack_buckets",
3183ab89 624 .data = &nf_conntrack_htable_size_user,
9fb9cbb1 625 .maxlen = sizeof(unsigned int),
3183ab89
FW		 626 .mode = 0644,
627 .proc_handler = nf_conntrack_hash_sysctl,
9fb9cbb1 628 },
4a65798a 629 [NF_SYSCTL_CT_CHECKSUM] = {
39a27a35 630 .procname = "nf_conntrack_checksum",
c04d0552 631 .data = &init_net.ct.sysctl_checksum,
8f14c99c 632 .maxlen = sizeof(int),
39a27a35 633 .mode = 0644,
8f14c99c 634 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 635 .extra1 = SYSCTL_ZERO,
636 .extra2 = SYSCTL_ONE,
39a27a35 637 },
4a65798a 638 [NF_SYSCTL_CT_LOG_INVALID] = {
9fb9cbb1 639 .procname = "nf_conntrack_log_invalid",
c2a2c7e0 640 .data = &init_net.ct.sysctl_log_invalid,
9fb9cbb1
YK		 641 .maxlen = sizeof(unsigned int),
642 .mode = 0644,
6d9f239a 643 .proc_handler = proc_dointvec_minmax,
9fb9cbb1
YK		 644 .extra1 = &log_invalid_proto_min,
645 .extra2 = &log_invalid_proto_max,
646 },
4a65798a 647 [NF_SYSCTL_CT_EXPECT_MAX] = {
f264a7df
PM		 648 .procname = "nf_conntrack_expect_max",
649 .data = &nf_ct_expect_max,
650 .maxlen = sizeof(int),
651 .mode = 0644,
6d9f239a 652 .proc_handler = proc_dointvec,
f264a7df 653 },
d912dec1
FW		 654 [NF_SYSCTL_CT_ACCT] = {
655 .procname = "nf_conntrack_acct",
656 .data = &init_net.ct.sysctl_acct,
8f14c99c 657 .maxlen = sizeof(int),
d912dec1 658 .mode = 0644,
8f14c99c 659 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 660 .extra1 = SYSCTL_ZERO,
661 .extra2 = SYSCTL_ONE,
d912dec1
FW		 662 },
663 [NF_SYSCTL_CT_HELPER] = {
664 .procname = "nf_conntrack_helper",
665 .data = &init_net.ct.sysctl_auto_assign_helper,
8f14c99c 666 .maxlen = sizeof(int),
d912dec1 667 .mode = 0644,
8f14c99c 668 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 669 .extra1 = SYSCTL_ZERO,
670 .extra2 = SYSCTL_ONE,
d912dec1 671 },
cb2833ed
FW		 672#ifdef CONFIG_NF_CONNTRACK_EVENTS
673 [NF_SYSCTL_CT_EVENTS] = {
674 .procname = "nf_conntrack_events",
675 .data = &init_net.ct.sysctl_events,
8f14c99c 676 .maxlen = sizeof(int),
cb2833ed 677 .mode = 0644,
8f14c99c 678 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 679 .extra1 = SYSCTL_ZERO,
680 .extra2 = SYSCTL_ONE,
cb2833ed
FW		 681 },
682#endif
683#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
684 [NF_SYSCTL_CT_TIMESTAMP] = {
685 .procname = "nf_conntrack_timestamp",
686 .data = &init_net.ct.sysctl_tstamp,
8f14c99c 687 .maxlen = sizeof(int),
cb2833ed 688 .mode = 0644,
8f14c99c 689 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 690 .extra1 = SYSCTL_ZERO,
691 .extra2 = SYSCTL_ONE,
cb2833ed
FW		 692 },
693#endif
b884fa46
FW		 694 [NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC] = {
695 .procname = "nf_conntrack_generic_timeout",
696 .maxlen = sizeof(unsigned int),
697 .mode = 0644,
698 .proc_handler = proc_dointvec_jiffies,
699 },
700 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT] = {
701 .procname = "nf_conntrack_tcp_timeout_syn_sent",
702 .maxlen = sizeof(unsigned int),
703 .mode = 0644,
704 .proc_handler = proc_dointvec_jiffies,
705 },
706 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV] = {
707 .procname = "nf_conntrack_tcp_timeout_syn_recv",
708 .maxlen = sizeof(unsigned int),
709 .mode = 0644,
710 .proc_handler = proc_dointvec_jiffies,
711 },
712 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED] = {
713 .procname = "nf_conntrack_tcp_timeout_established",
714 .maxlen = sizeof(unsigned int),
715 .mode = 0644,
716 .proc_handler = proc_dointvec_jiffies,
717 },
718 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT] = {
719 .procname = "nf_conntrack_tcp_timeout_fin_wait",
720 .maxlen = sizeof(unsigned int),
721 .mode = 0644,
722 .proc_handler = proc_dointvec_jiffies,
723 },
724 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT] = {
725 .procname = "nf_conntrack_tcp_timeout_close_wait",
726 .maxlen = sizeof(unsigned int),
727 .mode = 0644,
728 .proc_handler = proc_dointvec_jiffies,
729 },
730 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK] = {
731 .procname = "nf_conntrack_tcp_timeout_last_ack",
732 .maxlen = sizeof(unsigned int),
733 .mode = 0644,
734 .proc_handler = proc_dointvec_jiffies,
735 },
736 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT] = {
737 .procname = "nf_conntrack_tcp_timeout_time_wait",
738 .maxlen = sizeof(unsigned int),
739 .mode = 0644,
740 .proc_handler = proc_dointvec_jiffies,
741 },
742 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE] = {
743 .procname = "nf_conntrack_tcp_timeout_close",
744 .maxlen = sizeof(unsigned int),
745 .mode = 0644,
746 .proc_handler = proc_dointvec_jiffies,
747 },
748 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS] = {
749 .procname = "nf_conntrack_tcp_timeout_max_retrans",
750 .maxlen = sizeof(unsigned int),
751 .mode = 0644,
752 .proc_handler = proc_dointvec_jiffies,
753 },
754 [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK] = {
755 .procname = "nf_conntrack_tcp_timeout_unacknowledged",
756 .maxlen = sizeof(unsigned int),
757 .mode = 0644,
758 .proc_handler = proc_dointvec_jiffies,
759 },
760 [NF_SYSCTL_CT_PROTO_TCP_LOOSE] = {
761 .procname = "nf_conntrack_tcp_loose",
8f14c99c 762 .maxlen = sizeof(int),
b884fa46 763 .mode = 0644,
8f14c99c 764 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 765 .extra1 = SYSCTL_ZERO,
766 .extra2 = SYSCTL_ONE,
b884fa46
FW		 767 },
768 [NF_SYSCTL_CT_PROTO_TCP_LIBERAL] = {
769 .procname = "nf_conntrack_tcp_be_liberal",
8f14c99c 770 .maxlen = sizeof(int),
b884fa46 771 .mode = 0644,
8f14c99c 772 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 773 .extra1 = SYSCTL_ZERO,
774 .extra2 = SYSCTL_ONE,
b884fa46
FW		 775 },
776 [NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS] = {
777 .procname = "nf_conntrack_tcp_max_retrans",
778 .maxlen = sizeof(unsigned int),
779 .mode = 0644,
780 .proc_handler = proc_dointvec,
781 },
782 [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP] = {
783 .procname = "nf_conntrack_udp_timeout",
784 .maxlen = sizeof(unsigned int),
785 .mode = 0644,
786 .proc_handler = proc_dointvec_jiffies,
787 },
788 [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM] = {
789 .procname = "nf_conntrack_udp_timeout_stream",
790 .maxlen = sizeof(unsigned int),
791 .mode = 0644,
792 .proc_handler = proc_dointvec_jiffies,
793 },
794 [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP] = {
795 .procname = "nf_conntrack_icmp_timeout",
796 .maxlen = sizeof(unsigned int),
797 .mode = 0644,
798 .proc_handler = proc_dointvec_jiffies,
799 },
800 [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6] = {
801 .procname = "nf_conntrack_icmpv6_timeout",
802 .maxlen = sizeof(unsigned int),
803 .mode = 0644,
804 .proc_handler = proc_dointvec_jiffies,
805 },
806#ifdef CONFIG_NF_CT_PROTO_SCTP
807 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED] = {
808 .procname = "nf_conntrack_sctp_timeout_closed",
809 .maxlen = sizeof(unsigned int),
810 .mode = 0644,
811 .proc_handler = proc_dointvec_jiffies,
812 },
813 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT] = {
814 .procname = "nf_conntrack_sctp_timeout_cookie_wait",
815 .maxlen = sizeof(unsigned int),
816 .mode = 0644,
817 .proc_handler = proc_dointvec_jiffies,
818 },
819 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED] = {
820 .procname = "nf_conntrack_sctp_timeout_cookie_echoed",
821 .maxlen = sizeof(unsigned int),
822 .mode = 0644,
823 .proc_handler = proc_dointvec_jiffies,
824 },
825 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED] = {
826 .procname = "nf_conntrack_sctp_timeout_established",
827 .maxlen = sizeof(unsigned int),
828 .mode = 0644,
829 .proc_handler = proc_dointvec_jiffies,
830 },
831 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT] = {
832 .procname = "nf_conntrack_sctp_timeout_shutdown_sent",
833 .maxlen = sizeof(unsigned int),
834 .mode = 0644,
835 .proc_handler = proc_dointvec_jiffies,
836 },
837 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD] = {
838 .procname = "nf_conntrack_sctp_timeout_shutdown_recd",
839 .maxlen = sizeof(unsigned int),
840 .mode = 0644,
841 .proc_handler = proc_dointvec_jiffies,
842 },
843 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT] = {
844 .procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
845 .maxlen = sizeof(unsigned int),
846 .mode = 0644,
847 .proc_handler = proc_dointvec_jiffies,
848 },
849 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT] = {
850 .procname = "nf_conntrack_sctp_timeout_heartbeat_sent",
851 .maxlen = sizeof(unsigned int),
852 .mode = 0644,
853 .proc_handler = proc_dointvec_jiffies,
854 },
855 [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED] = {
856 .procname = "nf_conntrack_sctp_timeout_heartbeat_acked",
857 .maxlen = sizeof(unsigned int),
858 .mode = 0644,
859 .proc_handler = proc_dointvec_jiffies,
860 },
861#endif
862#ifdef CONFIG_NF_CT_PROTO_DCCP
863 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST] = {
864 .procname = "nf_conntrack_dccp_timeout_request",
865 .maxlen = sizeof(unsigned int),
866 .mode = 0644,
867 .proc_handler = proc_dointvec_jiffies,
868 },
869 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND] = {
870 .procname = "nf_conntrack_dccp_timeout_respond",
871 .maxlen = sizeof(unsigned int),
872 .mode = 0644,
873 .proc_handler = proc_dointvec_jiffies,
874 },
875 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN] = {
876 .procname = "nf_conntrack_dccp_timeout_partopen",
877 .maxlen = sizeof(unsigned int),
878 .mode = 0644,
879 .proc_handler = proc_dointvec_jiffies,
880 },
881 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN] = {
882 .procname = "nf_conntrack_dccp_timeout_open",
883 .maxlen = sizeof(unsigned int),
884 .mode = 0644,
885 .proc_handler = proc_dointvec_jiffies,
886 },
887 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ] = {
888 .procname = "nf_conntrack_dccp_timeout_closereq",
889 .maxlen = sizeof(unsigned int),
890 .mode = 0644,
891 .proc_handler = proc_dointvec_jiffies,
892 },
893 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING] = {
894 .procname = "nf_conntrack_dccp_timeout_closing",
895 .maxlen = sizeof(unsigned int),
896 .mode = 0644,
897 .proc_handler = proc_dointvec_jiffies,
898 },
899 [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT] = {
900 .procname = "nf_conntrack_dccp_timeout_timewait",
901 .maxlen = sizeof(unsigned int),
902 .mode = 0644,
903 .proc_handler = proc_dointvec_jiffies,
904 },
905 [NF_SYSCTL_CT_PROTO_DCCP_LOOSE] = {
906 .procname = "nf_conntrack_dccp_loose",
907 .maxlen = sizeof(int),
908 .mode = 0644,
8f14c99c 909 .proc_handler = proc_dointvec_minmax,
e84fb4b3
MC		 910 .extra1 = SYSCTL_ZERO,
911 .extra2 = SYSCTL_ONE,
b884fa46
FW		 912 },
913#endif
914#ifdef CONFIG_NF_CT_PROTO_GRE
915 [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE] = {
916 .procname = "nf_conntrack_gre_timeout",
917 .maxlen = sizeof(unsigned int),
918 .mode = 0644,
919 .proc_handler = proc_dointvec_jiffies,
920 },
921 [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM] = {
922 .procname = "nf_conntrack_gre_timeout_stream",
923 .maxlen = sizeof(unsigned int),
924 .mode = 0644,
925 .proc_handler = proc_dointvec_jiffies,
926 },
927#endif
928 {}
9fb9cbb1
YK		 929};
930
fe2c6338 931static struct ctl_table nf_ct_netfilter_table[] = {
9fb9cbb1 932 {
9fb9cbb1
YK		 933 .procname = "nf_conntrack_max",
934 .data = &nf_conntrack_max,
935 .maxlen = sizeof(int),
936 .mode = 0644,
6d9f239a 937 .proc_handler = proc_dointvec,
9fb9cbb1 938 },
f8572d8f 939 { }
9fb9cbb1
YK		 940};
941
b884fa46
FW		 942static void nf_conntrack_standalone_init_tcp_sysctl(struct net *net,
943 struct ctl_table *table)
944{
945 struct nf_tcp_net *tn = nf_tcp_pernet(net);
946
947#define XASSIGN(XNAME, tn) \
948 table[NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ ## XNAME].data = \
949 &(tn)->timeouts[TCP_CONNTRACK_ ## XNAME]
950
951 XASSIGN(SYN_SENT, tn);
952 XASSIGN(SYN_RECV, tn);
953 XASSIGN(ESTABLISHED, tn);
954 XASSIGN(FIN_WAIT, tn);
955 XASSIGN(CLOSE_WAIT, tn);
956 XASSIGN(LAST_ACK, tn);
957 XASSIGN(TIME_WAIT, tn);
958 XASSIGN(CLOSE, tn);
959 XASSIGN(RETRANS, tn);
960 XASSIGN(UNACK, tn);
961#undef XASSIGN
962#define XASSIGN(XNAME, rval) \
963 table[NF_SYSCTL_CT_PROTO_TCP_ ## XNAME].data = (rval)
964
965 XASSIGN(LOOSE, &tn->tcp_loose);
966 XASSIGN(LIBERAL, &tn->tcp_be_liberal);
967 XASSIGN(MAX_RETRANS, &tn->tcp_max_retrans);
968#undef XASSIGN
969}
970
971static void nf_conntrack_standalone_init_sctp_sysctl(struct net *net,
972 struct ctl_table *table)
973{
974#ifdef CONFIG_NF_CT_PROTO_SCTP
975 struct nf_sctp_net *sn = nf_sctp_pernet(net);
976
977#define XASSIGN(XNAME, sn) \
978 table[NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ ## XNAME].data = \
979 &(sn)->timeouts[SCTP_CONNTRACK_ ## XNAME]
980
981 XASSIGN(CLOSED, sn);
982 XASSIGN(COOKIE_WAIT, sn);
983 XASSIGN(COOKIE_ECHOED, sn);
984 XASSIGN(ESTABLISHED, sn);
985 XASSIGN(SHUTDOWN_SENT, sn);
986 XASSIGN(SHUTDOWN_RECD, sn);
987 XASSIGN(SHUTDOWN_ACK_SENT, sn);
988 XASSIGN(HEARTBEAT_SENT, sn);
989 XASSIGN(HEARTBEAT_ACKED, sn);
990#undef XASSIGN
991#endif
992}
993
994static void nf_conntrack_standalone_init_dccp_sysctl(struct net *net,
995 struct ctl_table *table)
996{
997#ifdef CONFIG_NF_CT_PROTO_DCCP
998 struct nf_dccp_net *dn = nf_dccp_pernet(net);
999
1000#define XASSIGN(XNAME, dn) \
1001 table[NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_ ## XNAME].data = \
1002 &(dn)->dccp_timeout[CT_DCCP_ ## XNAME]
1003
1004 XASSIGN(REQUEST, dn);
1005 XASSIGN(RESPOND, dn);
1006 XASSIGN(PARTOPEN, dn);
1007 XASSIGN(OPEN, dn);
1008 XASSIGN(CLOSEREQ, dn);
1009 XASSIGN(CLOSING, dn);
1010 XASSIGN(TIMEWAIT, dn);
1011#undef XASSIGN
1012
1013 table[NF_SYSCTL_CT_PROTO_DCCP_LOOSE].data = &dn->dccp_loose;
1014#endif
1015}
1016
1017static void nf_conntrack_standalone_init_gre_sysctl(struct net *net,
1018 struct ctl_table *table)
1019{
1020#ifdef CONFIG_NF_CT_PROTO_GRE
1021 struct nf_gre_net *gn = nf_gre_pernet(net);
1022
1023 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE].data = &gn->timeouts[GRE_CT_UNREPLIED];
1024 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM].data = &gn->timeouts[GRE_CT_REPLIED];
1025#endif
1026}
1027
80250707 1028static int nf_conntrack_standalone_init_sysctl(struct net *net)
b916f7d4 1029{
b884fa46 1030 struct nf_udp_net *un = nf_udp_pernet(net);
80250707
AD		 1031 struct ctl_table *table;
1032
b884fa46
FW		 1033 BUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL);
1034
80250707
AD		 1035 table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
1036 GFP_KERNEL);
1037 if (!table)
b884fa46 1038 return -ENOMEM;
80250707 1039
4a65798a
FW		 1040 table[NF_SYSCTL_CT_COUNT].data = &net->ct.count;
1041 table[NF_SYSCTL_CT_CHECKSUM].data = &net->ct.sysctl_checksum;
1042 table[NF_SYSCTL_CT_LOG_INVALID].data = &net->ct.sysctl_log_invalid;
478553fd
FW		 1043 table[NF_SYSCTL_CT_ACCT].data = &net->ct.sysctl_acct;
1044 table[NF_SYSCTL_CT_HELPER].data = &net->ct.sysctl_auto_assign_helper;
cb2833ed
FW		 1045#ifdef CONFIG_NF_CONNTRACK_EVENTS
1046 table[NF_SYSCTL_CT_EVENTS].data = &net->ct.sysctl_events;
478553fd
FW		 1047#endif
1048#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
1049 table[NF_SYSCTL_CT_TIMESTAMP].data = &net->ct.sysctl_tstamp;
cb2833ed 1050#endif
b884fa46
FW		 1051 table[NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC].data = &nf_generic_pernet(net)->timeout;
1052 table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP].data = &nf_icmp_pernet(net)->timeout;
1053 table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6].data = &nf_icmpv6_pernet(net)->timeout;
1054 table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP].data = &un->timeouts[UDP_CT_UNREPLIED];
1055 table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM].data = &un->timeouts[UDP_CT_REPLIED];
1056
1057 nf_conntrack_standalone_init_tcp_sysctl(net, table);
1058 nf_conntrack_standalone_init_sctp_sysctl(net, table);
1059 nf_conntrack_standalone_init_dccp_sysctl(net, table);
1060 nf_conntrack_standalone_init_gre_sysctl(net, table);
80250707 1061
d0febd81 1062 /* Don't allow unprivileged users to alter certain sysctls */
d912dec1 1063 if (net->user_ns != &init_user_ns) {
d0febd81
FW		 1064 table[NF_SYSCTL_CT_MAX].mode = 0444;
1065 table[NF_SYSCTL_CT_EXPECT_MAX].mode = 0444;
1066 table[NF_SYSCTL_CT_HELPER].mode = 0444;
cb2833ed 1067#ifdef CONFIG_NF_CONNTRACK_EVENTS
d0febd81 1068 table[NF_SYSCTL_CT_EVENTS].mode = 0444;
cb2833ed 1069#endif
4a65798a 1070 table[NF_SYSCTL_CT_BUCKETS].mode = 0444;
d0febd81
FW		 1071 } else if (!net_eq(&init_net, net)) {
1072 table[NF_SYSCTL_CT_BUCKETS].mode = 0444;
1073 }
3183ab89 1074
ec8f23ce 1075 net->ct.sysctl_header = register_net_sysctl(net, "net/netfilter", table);
80250707 1076 if (!net->ct.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{
80250707
AD		 1088 struct ctl_table *table;
1089
80250707
AD		 1090 table = net->ct.sysctl_header->ctl_table_arg;
1091 unregister_net_sysctl_table(net->ct.sysctl_header);
1092 kfree(table);
b916f7d4
AD		 1093}
1094#else
80250707 1095static int nf_conntrack_standalone_init_sysctl(struct net *net)
b916f7d4
AD		 1096{
1097 return 0;
1098}
1099
80250707 1100static void nf_conntrack_standalone_fini_sysctl(struct net *net)
b916f7d4
AD		 1101{
1102}
9fb9cbb1
YK		 1103#endif /* CONFIG_SYSCTL */
1104
ba3fbe66
PNA		 1105static void nf_conntrack_fini_net(struct net *net)
1106{
1107 if (enable_hooks)
1108 nf_ct_netns_put(net, NFPROTO_INET);
1109
1110 nf_conntrack_standalone_fini_proc(net);
1111 nf_conntrack_standalone_fini_sysctl(net);
1112}
1113
f94161c1 1114static int nf_conntrack_pernet_init(struct net *net)
dfdb8d79 1115{
b2ce2c74
AD		 1116 int ret;
1117
b884fa46
FW		 1118 net->ct.sysctl_checksum = 1;
1119
1120 ret = nf_conntrack_standalone_init_sysctl(net);
b2ce2c74 1121 if (ret < 0)
b884fa46 1122 return ret;
f94161c1 1123
b2ce2c74
AD		 1124 ret = nf_conntrack_standalone_init_proc(net);
1125 if (ret < 0)
1126 goto out_proc;
f94161c1 1127
b884fa46 1128 ret = nf_conntrack_init_net(net);
80250707 1129 if (ret < 0)
b884fa46 1130 goto out_init_net;
f94161c1 1131
ba3fbe66
PNA		 1132 if (enable_hooks) {
1133 ret = nf_ct_netns_get(net, NFPROTO_INET);
1134 if (ret < 0)
1135 goto out_hooks;
1136 }
1137
b2ce2c74
AD		 1138 return 0;
1139
ba3fbe66 1140out_hooks:
ac088a88 1141 nf_conntrack_cleanup_net(net);
b884fa46 1142out_init_net:
80250707 1143 nf_conntrack_standalone_fini_proc(net);
b2ce2c74 1144out_proc:
ac088a88 1145 nf_conntrack_standalone_fini_sysctl(net);
b2ce2c74 1146 return ret;
dfdb8d79
AD		 1147}
1148
dece40e8 1149static void nf_conntrack_pernet_exit(struct list_head *net_exit_list)
dfdb8d79 1150{
dece40e8
VD		 1151 struct net *net;
1152
ba3fbe66
PNA		 1153 list_for_each_entry(net, net_exit_list, exit_list)
1154 nf_conntrack_fini_net(net);
1155
dece40e8 1156 nf_conntrack_cleanup_net_list(net_exit_list);
dfdb8d79
AD		 1157}
1158
1159static struct pernet_operations nf_conntrack_net_ops = {
dece40e8
VD		 1160 .init = nf_conntrack_pernet_init,
1161 .exit_batch = nf_conntrack_pernet_exit,
a0ae2562
FW		 1162 .id = &nf_conntrack_net_id,
1163 .size = sizeof(struct nf_conntrack_net),
dfdb8d79
AD		 1164};
1165
65b4b4e8 1166static int __init nf_conntrack_standalone_init(void)
9fb9cbb1 1167{
f94161c1
G		 1168 int ret = nf_conntrack_init_start();
1169 if (ret < 0)
1170 goto out_start;
1171
a9e419dc
FW		 1172 BUILD_BUG_ON(NFCT_INFOMASK <= IP_CT_NUMBER);
1173
5f9f946b 1174#ifdef CONFIG_SYSCTL
f94161c1
G		 1175 nf_ct_netfilter_header =
1176 register_net_sysctl(&init_net, "net", nf_ct_netfilter_table);
5f9f946b
PNA		 1177 if (!nf_ct_netfilter_header) {
1178 pr_err("nf_conntrack: can't register to sysctl.\n");
5389090b 1179 ret = -ENOMEM;
f94161c1 1180 goto out_sysctl;
5f9f946b 1181 }
3183ab89
FW		 1182
1183 nf_conntrack_htable_size_user = nf_conntrack_htable_size;
5f9f946b 1184#endif
f94161c1
G		 1185
1186 ret = register_pernet_subsys(&nf_conntrack_net_ops);
1187 if (ret < 0)
1188 goto out_pernet;
1189
1190 nf_conntrack_init_end();
1191 return 0;
1192
1193out_pernet:
5f9f946b 1194#ifdef CONFIG_SYSCTL
f94161c1
G		 1195 unregister_net_sysctl_table(nf_ct_netfilter_header);
1196out_sysctl:
5f9f946b 1197#endif
f94161c1
G		 1198 nf_conntrack_cleanup_end();
1199out_start:
1200 return ret;
9fb9cbb1
YK		 1201}
1202
65b4b4e8 1203static void __exit nf_conntrack_standalone_fini(void)
9fb9cbb1 1204{
f94161c1 1205 nf_conntrack_cleanup_start();
dfdb8d79 1206 unregister_pernet_subsys(&nf_conntrack_net_ops);
5f9f946b 1207#ifdef CONFIG_SYSCTL
f94161c1 1208 unregister_net_sysctl_table(nf_ct_netfilter_header);
5f9f946b 1209#endif
1e47ee83 1210 nf_conntrack_cleanup_end();
9fb9cbb1
YK		 1211}
1212
65b4b4e8
AM		 1213module_init(nf_conntrack_standalone_init);
1214module_exit(nf_conntrack_standalone_fini);
Ubuntu Hirsute Linux kernel mirror