1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
|
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
* Patrick Schaaf <bof@bof.de>
* Martin Josefsson <gandalf@wlug.westbo.se>
* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
*/
/* Kernel module which implements the set match and SET target
* for netfilter/iptables.
*/
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/ipset/ip_set.h>
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <uapi/linux/netfilter/xt_set.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
MODULE_DESCRIPTION("Xtables: IP set match and target module");
MODULE_ALIAS("xt_SET");
MODULE_ALIAS("ipt_set");
MODULE_ALIAS("ip6t_set");
MODULE_ALIAS("ipt_SET");
MODULE_ALIAS("ip6t_SET");
static inline int
match_set(ip_set_id_t index, const struct sk_buff *skb,
const struct xt_action_param *par,
struct ip_set_adt_opt *opt, int inv)
{
if (ip_set_test(index, skb, par, opt))
inv = !inv;
return inv;
}
#define ADT_OPT(n, f, d, fs, cfs, t, p, b, po, bo) \
struct ip_set_adt_opt n = { \
.family = f, \
.dim = d, \
.flags = fs, \
.cmdflags = cfs, \
.ext.timeout = t, \
.ext.packets = p, \
.ext.bytes = b, \
.ext.packets_op = po, \
.ext.bytes_op = bo, \
}
/* Revision 0 interface: backward compatible with netfilter/iptables */
static bool
set_match_v0(const struct sk_buff *skb, struct xt_action_param *par)
{
const struct xt_set_info_match_v0 *info = par->matchinfo;
ADT_OPT(opt, xt_family(par), info->match_set.u.compat.dim,
info->match_set.u.compat.flags, 0, UINT_MAX,
0, 0, 0, 0);
return match_set(info->match_set.index, skb, par, &opt,
info->match_set.u.compat.flags & IPSET_INV_MATCH);
}
static void
compat_flags(struct xt_set_info_v0 *info)
{
u_int8_t i;
/* Fill out compatibility data according to enum ip_set_kopt */
info->u.compat.dim = IPSET_DIM_ZERO;
if (info->u.flags[0] & IPSET_MATCH_INV)
info->u.compat.flags |= IPSET_INV_MATCH;
for (i = 0; i < IPSET_DIM_MAX - 1 && info->u.flags[i]; i++) {
info->u.compat.dim++;
if (info->u.flags[i] & IPSET_SRC)
info->u.compat.flags |= (1 << info->u.compat.dim);
}
}
static int
set_match_v0_checkentry(const struct xt_mtchk_param *par)
{
struct xt_set_info_match_v0 *info = par->matchinfo;
ip_set_id_t index;
index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find set identified by id %u to match\n",
info->match_set.index);
return -ENOENT;
}
if (info->match_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
pr_info_ratelimited("set match dimension is over the limit!\n");
ip_set_nfnl_put(par->net, info->match_set.index);
return -ERANGE;
}
/* Fill out compatibility data */
compat_flags(&info->match_set);
return 0;
}
static void
set_match_v0_destroy(const struct xt_mtdtor_param *par)
{
struct xt_set_info_match_v0 *info = par->matchinfo;
ip_set_nfnl_put(par->net, info->match_set.index);
}
/* Revision 1 match */
static bool
set_match_v1(const struct sk_buff *skb, struct xt_action_param *par)
{
const struct xt_set_info_match_v1 *info = par->matchinfo;
ADT_OPT(opt, xt_family(par), info->match_set.dim,
info->match_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
if (opt.flags & IPSET_RETURN_NOMATCH)
opt.cmdflags |= IPSET_FLAG_RETURN_NOMATCH;
return match_set(info->match_set.index, skb, par, &opt,
info->match_set.flags & IPSET_INV_MATCH);
}
static int
set_match_v1_checkentry(const struct xt_mtchk_param *par)
{
struct xt_set_info_match_v1 *info = par->matchinfo;
ip_set_id_t index;
index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find set identified by id %u to match\n",
info->match_set.index);
return -ENOENT;
}
if (info->match_set.dim > IPSET_DIM_MAX) {
pr_info_ratelimited("set match dimension is over the limit!\n");
ip_set_nfnl_put(par->net, info->match_set.index);
return -ERANGE;
}
return 0;
}
static void
set_match_v1_destroy(const struct xt_mtdtor_param *par)
{
struct xt_set_info_match_v1 *info = par->matchinfo;
ip_set_nfnl_put(par->net, info->match_set.index);
}
/* Revision 3 match */
static bool
set_match_v3(const struct sk_buff *skb, struct xt_action_param *par)
{
const struct xt_set_info_match_v3 *info = par->matchinfo;
ADT_OPT(opt, xt_family(par), info->match_set.dim,
info->match_set.flags, info->flags, UINT_MAX,
info->packets.value, info->bytes.value,
info->packets.op, info->bytes.op);
if (info->packets.op != IPSET_COUNTER_NONE ||
info->bytes.op != IPSET_COUNTER_NONE)
opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
return match_set(info->match_set.index, skb, par, &opt,
info->match_set.flags & IPSET_INV_MATCH);
}
#define set_match_v3_checkentry set_match_v1_checkentry
#define set_match_v3_destroy set_match_v1_destroy
/* Revision 4 match */
static bool
set_match_v4(const struct sk_buff *skb, struct xt_action_param *par)
{
const struct xt_set_info_match_v4 *info = par->matchinfo;
ADT_OPT(opt, xt_family(par), info->match_set.dim,
info->match_set.flags, info->flags, UINT_MAX,
info->packets.value, info->bytes.value,
info->packets.op, info->bytes.op);
if (info->packets.op != IPSET_COUNTER_NONE ||
info->bytes.op != IPSET_COUNTER_NONE)
opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
return match_set(info->match_set.index, skb, par, &opt,
info->match_set.flags & IPSET_INV_MATCH);
}
#define set_match_v4_checkentry set_match_v1_checkentry
#define set_match_v4_destroy set_match_v1_destroy
/* Revision 0 interface: backward compatible with netfilter/iptables */
static unsigned int
set_target_v0(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_set_info_target_v0 *info = par->targinfo;
ADT_OPT(add_opt, xt_family(par), info->add_set.u.compat.dim,
info->add_set.u.compat.flags, 0, UINT_MAX,
0, 0, 0, 0);
ADT_OPT(del_opt, xt_family(par), info->del_set.u.compat.dim,
info->del_set.u.compat.flags, 0, UINT_MAX,
0, 0, 0, 0);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, par, &add_opt);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_del(info->del_set.index, skb, par, &del_opt);
return XT_CONTINUE;
}
static int
set_target_v0_checkentry(const struct xt_tgchk_param *par)
{
struct xt_set_info_target_v0 *info = par->targinfo;
ip_set_id_t index;
if (info->add_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find add_set index %u as target\n",
info->add_set.index);
return -ENOENT;
}
}
if (info->del_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find del_set index %u as target\n",
info->del_set.index);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
return -ENOENT;
}
}
if (info->add_set.u.flags[IPSET_DIM_MAX - 1] != 0 ||
info->del_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
pr_info_ratelimited("SET target dimension over the limit!\n");
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
return -ERANGE;
}
/* Fill out compatibility data */
compat_flags(&info->add_set);
compat_flags(&info->del_set);
return 0;
}
static void
set_target_v0_destroy(const struct xt_tgdtor_param *par)
{
const struct xt_set_info_target_v0 *info = par->targinfo;
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
}
/* Revision 1 target */
static unsigned int
set_target_v1(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_set_info_target_v1 *info = par->targinfo;
ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
info->add_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
info->del_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, par, &add_opt);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_del(info->del_set.index, skb, par, &del_opt);
return XT_CONTINUE;
}
static int
set_target_v1_checkentry(const struct xt_tgchk_param *par)
{
const struct xt_set_info_target_v1 *info = par->targinfo;
ip_set_id_t index;
if (info->add_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find add_set index %u as target\n",
info->add_set.index);
return -ENOENT;
}
}
if (info->del_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find del_set index %u as target\n",
info->del_set.index);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
return -ENOENT;
}
}
if (info->add_set.dim > IPSET_DIM_MAX ||
info->del_set.dim > IPSET_DIM_MAX) {
pr_info_ratelimited("SET target dimension over the limit!\n");
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
return -ERANGE;
}
return 0;
}
static void
set_target_v1_destroy(const struct xt_tgdtor_param *par)
{
const struct xt_set_info_target_v1 *info = par->targinfo;
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
}
/* Revision 2 target */
static unsigned int
set_target_v2(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_set_info_target_v2 *info = par->targinfo;
ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
info->add_set.flags, info->flags, info->timeout,
0, 0, 0, 0);
ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
info->del_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
/* Normalize to fit into jiffies */
if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&
add_opt.ext.timeout > IPSET_MAX_TIMEOUT)
add_opt.ext.timeout = IPSET_MAX_TIMEOUT;
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, par, &add_opt);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_del(info->del_set.index, skb, par, &del_opt);
return XT_CONTINUE;
}
#define set_target_v2_checkentry set_target_v1_checkentry
#define set_target_v2_destroy set_target_v1_destroy
/* Revision 3 target */
#define MOPT(opt, member) ((opt).ext.skbinfo.member)
static unsigned int
set_target_v3(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_set_info_target_v3 *info = par->targinfo;
int ret;
ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
info->add_set.flags, info->flags, info->timeout,
0, 0, 0, 0);
ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
info->del_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
ADT_OPT(map_opt, xt_family(par), info->map_set.dim,
info->map_set.flags, 0, UINT_MAX,
0, 0, 0, 0);
/* Normalize to fit into jiffies */
if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&
add_opt.ext.timeout > IPSET_MAX_TIMEOUT)
add_opt.ext.timeout = IPSET_MAX_TIMEOUT;
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, par, &add_opt);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_del(info->del_set.index, skb, par, &del_opt);
if (info->map_set.index != IPSET_INVALID_ID) {
map_opt.cmdflags |= info->flags & (IPSET_FLAG_MAP_SKBMARK |
IPSET_FLAG_MAP_SKBPRIO |
IPSET_FLAG_MAP_SKBQUEUE);
ret = match_set(info->map_set.index, skb, par, &map_opt,
info->map_set.flags & IPSET_INV_MATCH);
if (!ret)
return XT_CONTINUE;
if (map_opt.cmdflags & IPSET_FLAG_MAP_SKBMARK)
skb->mark = (skb->mark & ~MOPT(map_opt,skbmarkmask))
^ MOPT(map_opt, skbmark);
if (map_opt.cmdflags & IPSET_FLAG_MAP_SKBPRIO)
skb->priority = MOPT(map_opt, skbprio);
if ((map_opt.cmdflags & IPSET_FLAG_MAP_SKBQUEUE) &&
skb->dev &&
skb->dev->real_num_tx_queues > MOPT(map_opt, skbqueue))
skb_set_queue_mapping(skb, MOPT(map_opt, skbqueue));
}
return XT_CONTINUE;
}
static int
set_target_v3_checkentry(const struct xt_tgchk_param *par)
{
const struct xt_set_info_target_v3 *info = par->targinfo;
ip_set_id_t index;
if (info->add_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net,
info->add_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find add_set index %u as target\n",
info->add_set.index);
return -ENOENT;
}
}
if (info->del_set.index != IPSET_INVALID_ID) {
index = ip_set_nfnl_get_byindex(par->net,
info->del_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find del_set index %u as target\n",
info->del_set.index);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net,
info->add_set.index);
return -ENOENT;
}
}
if (info->map_set.index != IPSET_INVALID_ID) {
if (strncmp(par->table, "mangle", 7)) {
pr_info_ratelimited("--map-set only usable from mangle table\n");
return -EINVAL;
}
if (((info->flags & IPSET_FLAG_MAP_SKBPRIO) |
(info->flags & IPSET_FLAG_MAP_SKBQUEUE)) &&
(par->hook_mask & ~(1 << NF_INET_FORWARD |
1 << NF_INET_LOCAL_OUT |
1 << NF_INET_POST_ROUTING))) {
pr_info_ratelimited("mapping of prio or/and queue is allowed only from OUTPUT/FORWARD/POSTROUTING chains\n");
return -EINVAL;
}
index = ip_set_nfnl_get_byindex(par->net,
info->map_set.index);
if (index == IPSET_INVALID_ID) {
pr_info_ratelimited("Cannot find map_set index %u as target\n",
info->map_set.index);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net,
info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net,
info->del_set.index);
return -ENOENT;
}
}
if (info->add_set.dim > IPSET_DIM_MAX ||
info->del_set.dim > IPSET_DIM_MAX ||
info->map_set.dim > IPSET_DIM_MAX) {
pr_info_ratelimited("SET target dimension over the limit!\n");
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
if (info->map_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->map_set.index);
return -ERANGE;
}
return 0;
}
static void
set_target_v3_destroy(const struct xt_tgdtor_param *par)
{
const struct xt_set_info_target_v3 *info = par->targinfo;
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->add_set.index);
if (info->del_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->del_set.index);
if (info->map_set.index != IPSET_INVALID_ID)
ip_set_nfnl_put(par->net, info->map_set.index);
}
static struct xt_match set_matches[] __read_mostly = {
{
.name = "set",
.family = NFPROTO_IPV4,
.revision = 0,
.match = set_match_v0,
.matchsize = sizeof(struct xt_set_info_match_v0),
.checkentry = set_match_v0_checkentry,
.destroy = set_match_v0_destroy,
.me = THIS_MODULE
},
{
.name = "set",
.family = NFPROTO_IPV4,
.revision = 1,
.match = set_match_v1,
.matchsize = sizeof(struct xt_set_info_match_v1),
.checkentry = set_match_v1_checkentry,
.destroy = set_match_v1_destroy,
.me = THIS_MODULE
},
{
.name = "set",
.family = NFPROTO_IPV6,
.revision = 1,
.match = set_match_v1,
.matchsize = sizeof(struct xt_set_info_match_v1),
.checkentry = set_match_v1_checkentry,
.destroy = set_match_v1_destroy,
.me = THIS_MODULE
},
/* --return-nomatch flag support */
{
.name = "set",
.family = NFPROTO_IPV4,
.revision = 2,
.match = set_match_v1,
.matchsize = sizeof(struct xt_set_info_match_v1),
.checkentry = set_match_v1_checkentry,
.destroy = set_match_v1_destroy,
.me = THIS_MODULE
},
{
.name = "set",
.family = NFPROTO_IPV6,
.revision = 2,
.match = set_match_v1,
.matchsize = sizeof(struct xt_set_info_match_v1),
.checkentry = set_match_v1_checkentry,
.destroy = set_match_v1_destroy,
.me = THIS_MODULE
},
/* counters support: update, match */
{
.name = "set",
.family = NFPROTO_IPV4,
.revision = 3,
.match = set_match_v3,
.matchsize = sizeof(struct xt_set_info_match_v3),
.checkentry = set_match_v3_checkentry,
.destroy = set_match_v3_destroy,
.me = THIS_MODULE
},
{
.name = "set",
.family = NFPROTO_IPV6,
.revision = 3,
.match = set_match_v3,
.matchsize = sizeof(struct xt_set_info_match_v3),
.checkentry = set_match_v3_checkentry,
.destroy = set_match_v3_destroy,
.me = THIS_MODULE
},
/* new revision for counters support: update, match */
{
.name = "set",
.family = NFPROTO_IPV4,
.revision = 4,
.match = set_match_v4,
.matchsize = sizeof(struct xt_set_info_match_v4),
.checkentry = set_match_v4_checkentry,
.destroy = set_match_v4_destroy,
.me = THIS_MODULE
},
{
.name = "set",
.family = NFPROTO_IPV6,
.revision = 4,
.match = set_match_v4,
.matchsize = sizeof(struct xt_set_info_match_v4),
.checkentry = set_match_v4_checkentry,
.destroy = set_match_v4_destroy,
.me = THIS_MODULE
},
};
static struct xt_target set_targets[] __read_mostly = {
{
.name = "SET",
.revision = 0,
.family = NFPROTO_IPV4,
.target = set_target_v0,
.targetsize = sizeof(struct xt_set_info_target_v0),
.checkentry = set_target_v0_checkentry,
.destroy = set_target_v0_destroy,
.me = THIS_MODULE
},
{
.name = "SET",
.revision = 1,
.family = NFPROTO_IPV4,
.target = set_target_v1,
.targetsize = sizeof(struct xt_set_info_target_v1),
.checkentry = set_target_v1_checkentry,
.destroy = set_target_v1_destroy,
.me = THIS_MODULE
},
{
.name = "SET",
.revision = 1,
.family = NFPROTO_IPV6,
.target = set_target_v1,
.targetsize = sizeof(struct xt_set_info_target_v1),
.checkentry = set_target_v1_checkentry,
.destroy = set_target_v1_destroy,
.me = THIS_MODULE
},
/* --timeout and --exist flags support */
{
.name = "SET",
.revision = 2,
.family = NFPROTO_IPV4,
.target = set_target_v2,
.targetsize = sizeof(struct xt_set_info_target_v2),
.checkentry = set_target_v2_checkentry,
.destroy = set_target_v2_destroy,
.me = THIS_MODULE
},
{
.name = "SET",
.revision = 2,
.family = NFPROTO_IPV6,
.target = set_target_v2,
.targetsize = sizeof(struct xt_set_info_target_v2),
.checkentry = set_target_v2_checkentry,
.destroy = set_target_v2_destroy,
.me = THIS_MODULE
},
/* --map-set support */
{
.name = "SET",
.revision = 3,
.family = NFPROTO_IPV4,
.target = set_target_v3,
.targetsize = sizeof(struct xt_set_info_target_v3),
.checkentry = set_target_v3_checkentry,
.destroy = set_target_v3_destroy,
.me = THIS_MODULE
},
{
.name = "SET",
.revision = 3,
.family = NFPROTO_IPV6,
.target = set_target_v3,
.targetsize = sizeof(struct xt_set_info_target_v3),
.checkentry = set_target_v3_checkentry,
.destroy = set_target_v3_destroy,
.me = THIS_MODULE
},
};
static int __init xt_set_init(void)
{
int ret = xt_register_matches(set_matches, ARRAY_SIZE(set_matches));
if (!ret) {
ret = xt_register_targets(set_targets,
ARRAY_SIZE(set_targets));
if (ret)
xt_unregister_matches(set_matches,
ARRAY_SIZE(set_matches));
}
return ret;
}
static void __exit xt_set_fini(void)
{
xt_unregister_matches(set_matches, ARRAY_SIZE(set_matches));
xt_unregister_targets(set_targets, ARRAY_SIZE(set_targets));
}
module_init(xt_set_init);
module_exit(xt_set_fini);
|
