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1// SPDX-License-Identifier: GPL-2.0-only
2/* Copyright (C) 2000-2002 Joakim Axelsson <[email protected]>
3 * Patrick Schaaf <[email protected]>
4 * Martin Josefsson <[email protected]>
5 * Copyright (C) 2003-2013 Jozsef Kadlecsik <[email protected]>
6 */
7
8/* Kernel module which implements the set match and SET target
9 * for netfilter/iptables.
10 */
11
12#include <linux/module.h>
13#include <linux/skbuff.h>
14
15#include <linux/netfilter/x_tables.h>
16#include <linux/netfilter/ipset/ip_set.h>
17#include <uapi/linux/netfilter/xt_set.h>
18
19MODULE_LICENSE("GPL");
20MODULE_AUTHOR("Jozsef Kadlecsik <[email protected]>");
21MODULE_DESCRIPTION("Xtables: IP set match and target module");
22MODULE_ALIAS("xt_SET");
23MODULE_ALIAS("ipt_set");
24MODULE_ALIAS("ip6t_set");
25MODULE_ALIAS("ipt_SET");
26MODULE_ALIAS("ip6t_SET");
27
28static inline int
29match_set(ip_set_id_t index, const struct sk_buff *skb,
30 const struct xt_action_param *par,
31 struct ip_set_adt_opt *opt, int inv)
32{
33 if (ip_set_test(index, skb, par, opt))
34 inv = !inv;
35 return inv;
36}
37
38#define ADT_OPT(n, f, d, fs, cfs, t, p, b, po, bo) \
39struct ip_set_adt_opt n = { \
40 .family = f, \
41 .dim = d, \
42 .flags = fs, \
43 .cmdflags = cfs, \
44 .ext.timeout = t, \
45 .ext.packets = p, \
46 .ext.bytes = b, \
47 .ext.packets_op = po, \
48 .ext.bytes_op = bo, \
49}
50
51/* Revision 0 interface: backward compatible with netfilter/iptables */
52
53static bool
54set_match_v0(const struct sk_buff *skb, struct xt_action_param *par)
55{
56 const struct xt_set_info_match_v0 *info = par->matchinfo;
57
58 ADT_OPT(opt, xt_family(par), info->match_set.u.compat.dim,
59 info->match_set.u.compat.flags, 0, UINT_MAX,
60 0, 0, 0, 0);
61
62 return match_set(info->match_set.index, skb, par, &opt,
63 info->match_set.u.compat.flags & IPSET_INV_MATCH);
64}
65
66static void
67compat_flags(struct xt_set_info_v0 *info)
68{
69 u_int8_t i;
70
71 /* Fill out compatibility data according to enum ip_set_kopt */
72 info->u.compat.dim = IPSET_DIM_ZERO;
73 if (info->u.flags[0] & IPSET_MATCH_INV)
74 info->u.compat.flags |= IPSET_INV_MATCH;
75 for (i = 0; i < IPSET_DIM_MAX - 1 && info->u.flags[i]; i++) {
76 info->u.compat.dim++;
77 if (info->u.flags[i] & IPSET_SRC)
78 info->u.compat.flags |= (1 << info->u.compat.dim);
79 }
80}
81
82static int
83set_match_v0_checkentry(const struct xt_mtchk_param *par)
84{
85 struct xt_set_info_match_v0 *info = par->matchinfo;
86 ip_set_id_t index;
87
88 index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
89
90 if (index == IPSET_INVALID_ID) {
91 pr_info_ratelimited("Cannot find set identified by id %u to match\n",
92 info->match_set.index);
93 return -ENOENT;
94 }
95 if (info->match_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
96 pr_info_ratelimited("set match dimension is over the limit!\n");
97 ip_set_nfnl_put(par->net, info->match_set.index);
98 return -ERANGE;
99 }
100
101 /* Fill out compatibility data */
102 compat_flags(&info->match_set);
103
104 return 0;
105}
106
107static void
108set_match_v0_destroy(const struct xt_mtdtor_param *par)
109{
110 struct xt_set_info_match_v0 *info = par->matchinfo;
111
112 ip_set_nfnl_put(par->net, info->match_set.index);
113}
114
115/* Revision 1 match */
116
117static bool
118set_match_v1(const struct sk_buff *skb, struct xt_action_param *par)
119{
120 const struct xt_set_info_match_v1 *info = par->matchinfo;
121
122 ADT_OPT(opt, xt_family(par), info->match_set.dim,
123 info->match_set.flags, 0, UINT_MAX,
124 0, 0, 0, 0);
125
126 if (opt.flags & IPSET_RETURN_NOMATCH)
127 opt.cmdflags |= IPSET_FLAG_RETURN_NOMATCH;
128
129 return match_set(info->match_set.index, skb, par, &opt,
130 info->match_set.flags & IPSET_INV_MATCH);
131}
132
133static int
134set_match_v1_checkentry(const struct xt_mtchk_param *par)
135{
136 struct xt_set_info_match_v1 *info = par->matchinfo;
137 ip_set_id_t index;
138
139 index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
140
141 if (index == IPSET_INVALID_ID) {
142 pr_info_ratelimited("Cannot find set identified by id %u to match\n",
143 info->match_set.index);
144 return -ENOENT;
145 }
146 if (info->match_set.dim > IPSET_DIM_MAX) {
147 pr_info_ratelimited("set match dimension is over the limit!\n");
148 ip_set_nfnl_put(par->net, info->match_set.index);
149 return -ERANGE;
150 }
151
152 return 0;
153}
154
155static void
156set_match_v1_destroy(const struct xt_mtdtor_param *par)
157{
158 struct xt_set_info_match_v1 *info = par->matchinfo;
159
160 ip_set_nfnl_put(par->net, info->match_set.index);
161}
162
163/* Revision 3 match */
164
165static bool
166set_match_v3(const struct sk_buff *skb, struct xt_action_param *par)
167{
168 const struct xt_set_info_match_v3 *info = par->matchinfo;
169
170 ADT_OPT(opt, xt_family(par), info->match_set.dim,
171 info->match_set.flags, info->flags, UINT_MAX,
172 info->packets.value, info->bytes.value,
173 info->packets.op, info->bytes.op);
174
175 if (info->packets.op != IPSET_COUNTER_NONE ||
176 info->bytes.op != IPSET_COUNTER_NONE)
177 opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
178
179 return match_set(info->match_set.index, skb, par, &opt,
180 info->match_set.flags & IPSET_INV_MATCH);
181}
182
183#define set_match_v3_checkentry set_match_v1_checkentry
184#define set_match_v3_destroy set_match_v1_destroy
185
186/* Revision 4 match */
187
188static bool
189set_match_v4(const struct sk_buff *skb, struct xt_action_param *par)
190{
191 const struct xt_set_info_match_v4 *info = par->matchinfo;
192
193 ADT_OPT(opt, xt_family(par), info->match_set.dim,
194 info->match_set.flags, info->flags, UINT_MAX,
195 info->packets.value, info->bytes.value,
196 info->packets.op, info->bytes.op);
197
198 if (info->packets.op != IPSET_COUNTER_NONE ||
199 info->bytes.op != IPSET_COUNTER_NONE)
200 opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
201
202 return match_set(info->match_set.index, skb, par, &opt,
203 info->match_set.flags & IPSET_INV_MATCH);
204}
205
206#define set_match_v4_checkentry set_match_v1_checkentry
207#define set_match_v4_destroy set_match_v1_destroy
208
209/* Revision 0 interface: backward compatible with netfilter/iptables */
210
211static unsigned int
212set_target_v0(struct sk_buff *skb, const struct xt_action_param *par)
213{
214 const struct xt_set_info_target_v0 *info = par->targinfo;
215
216 ADT_OPT(add_opt, xt_family(par), info->add_set.u.compat.dim,
217 info->add_set.u.compat.flags, 0, UINT_MAX,
218 0, 0, 0, 0);
219 ADT_OPT(del_opt, xt_family(par), info->del_set.u.compat.dim,
220 info->del_set.u.compat.flags, 0, UINT_MAX,
221 0, 0, 0, 0);
222
223 if (info->add_set.index != IPSET_INVALID_ID)
224 ip_set_add(info->add_set.index, skb, par, &add_opt);
225 if (info->del_set.index != IPSET_INVALID_ID)
226 ip_set_del(info->del_set.index, skb, par, &del_opt);
227
228 return XT_CONTINUE;
229}
230
231static int
232set_target_v0_checkentry(const struct xt_tgchk_param *par)
233{
234 struct xt_set_info_target_v0 *info = par->targinfo;
235 ip_set_id_t index;
236
237 if (info->add_set.index != IPSET_INVALID_ID) {
238 index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
239 if (index == IPSET_INVALID_ID) {
240 pr_info_ratelimited("Cannot find add_set index %u as target\n",
241 info->add_set.index);
242 return -ENOENT;
243 }
244 }
245
246 if (info->del_set.index != IPSET_INVALID_ID) {
247 index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
248 if (index == IPSET_INVALID_ID) {
249 pr_info_ratelimited("Cannot find del_set index %u as target\n",
250 info->del_set.index);
251 if (info->add_set.index != IPSET_INVALID_ID)
252 ip_set_nfnl_put(par->net, info->add_set.index);
253 return -ENOENT;
254 }
255 }
256 if (info->add_set.u.flags[IPSET_DIM_MAX - 1] != 0 ||
257 info->del_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
258 pr_info_ratelimited("SET target dimension over the limit!\n");
259 if (info->add_set.index != IPSET_INVALID_ID)
260 ip_set_nfnl_put(par->net, info->add_set.index);
261 if (info->del_set.index != IPSET_INVALID_ID)
262 ip_set_nfnl_put(par->net, info->del_set.index);
263 return -ERANGE;
264 }
265
266 /* Fill out compatibility data */
267 compat_flags(&info->add_set);
268 compat_flags(&info->del_set);
269
270 return 0;
271}
272
273static void
274set_target_v0_destroy(const struct xt_tgdtor_param *par)
275{
276 const struct xt_set_info_target_v0 *info = par->targinfo;
277
278 if (info->add_set.index != IPSET_INVALID_ID)
279 ip_set_nfnl_put(par->net, info->add_set.index);
280 if (info->del_set.index != IPSET_INVALID_ID)
281 ip_set_nfnl_put(par->net, info->del_set.index);
282}
283
284/* Revision 1 target */
285
286static unsigned int
287set_target_v1(struct sk_buff *skb, const struct xt_action_param *par)
288{
289 const struct xt_set_info_target_v1 *info = par->targinfo;
290
291 ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
292 info->add_set.flags, 0, UINT_MAX,
293 0, 0, 0, 0);
294 ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
295 info->del_set.flags, 0, UINT_MAX,
296 0, 0, 0, 0);
297
298 if (info->add_set.index != IPSET_INVALID_ID)
299 ip_set_add(info->add_set.index, skb, par, &add_opt);
300 if (info->del_set.index != IPSET_INVALID_ID)
301 ip_set_del(info->del_set.index, skb, par, &del_opt);
302
303 return XT_CONTINUE;
304}
305
306static int
307set_target_v1_checkentry(const struct xt_tgchk_param *par)
308{
309 const struct xt_set_info_target_v1 *info = par->targinfo;
310 ip_set_id_t index;
311
312 if (info->add_set.index != IPSET_INVALID_ID) {
313 index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
314 if (index == IPSET_INVALID_ID) {
315 pr_info_ratelimited("Cannot find add_set index %u as target\n",
316 info->add_set.index);
317 return -ENOENT;
318 }
319 }
320
321 if (info->del_set.index != IPSET_INVALID_ID) {
322 index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
323 if (index == IPSET_INVALID_ID) {
324 pr_info_ratelimited("Cannot find del_set index %u as target\n",
325 info->del_set.index);
326 if (info->add_set.index != IPSET_INVALID_ID)
327 ip_set_nfnl_put(par->net, info->add_set.index);
328 return -ENOENT;
329 }
330 }
331 if (info->add_set.dim > IPSET_DIM_MAX ||
332 info->del_set.dim > IPSET_DIM_MAX) {
333 pr_info_ratelimited("SET target dimension over the limit!\n");
334 if (info->add_set.index != IPSET_INVALID_ID)
335 ip_set_nfnl_put(par->net, info->add_set.index);
336 if (info->del_set.index != IPSET_INVALID_ID)
337 ip_set_nfnl_put(par->net, info->del_set.index);
338 return -ERANGE;
339 }
340
341 return 0;
342}
343
344static void
345set_target_v1_destroy(const struct xt_tgdtor_param *par)
346{
347 const struct xt_set_info_target_v1 *info = par->targinfo;
348
349 if (info->add_set.index != IPSET_INVALID_ID)
350 ip_set_nfnl_put(par->net, info->add_set.index);
351 if (info->del_set.index != IPSET_INVALID_ID)
352 ip_set_nfnl_put(par->net, info->del_set.index);
353}
354
355/* Revision 2 target */
356
357static unsigned int
358set_target_v2(struct sk_buff *skb, const struct xt_action_param *par)
359{
360 const struct xt_set_info_target_v2 *info = par->targinfo;
361
362 ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
363 info->add_set.flags, info->flags, info->timeout,
364 0, 0, 0, 0);
365 ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
366 info->del_set.flags, 0, UINT_MAX,
367 0, 0, 0, 0);
368
369 /* Normalize to fit into jiffies */
370 if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&
371 add_opt.ext.timeout > IPSET_MAX_TIMEOUT)
372 add_opt.ext.timeout = IPSET_MAX_TIMEOUT;
373 if (info->add_set.index != IPSET_INVALID_ID)
374 ip_set_add(info->add_set.index, skb, par, &add_opt);
375 if (info->del_set.index != IPSET_INVALID_ID)
376 ip_set_del(info->del_set.index, skb, par, &del_opt);
377
378 return XT_CONTINUE;
379}
380
381#define set_target_v2_checkentry set_target_v1_checkentry
382#define set_target_v2_destroy set_target_v1_destroy
383
384/* Revision 3 target */
385
386#define MOPT(opt, member) ((opt).ext.skbinfo.member)
387
388static unsigned int
389set_target_v3(struct sk_buff *skb, const struct xt_action_param *par)
390{
391 const struct xt_set_info_target_v3 *info = par->targinfo;
392 int ret;
393
394 ADT_OPT(add_opt, xt_family(par), info->add_set.dim,
395 info->add_set.flags, info->flags, info->timeout,
396 0, 0, 0, 0);
397 ADT_OPT(del_opt, xt_family(par), info->del_set.dim,
398 info->del_set.flags, 0, UINT_MAX,
399 0, 0, 0, 0);
400 ADT_OPT(map_opt, xt_family(par), info->map_set.dim,
401 info->map_set.flags, 0, UINT_MAX,
402 0, 0, 0, 0);
403
404 /* Normalize to fit into jiffies */
405 if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&
406 add_opt.ext.timeout > IPSET_MAX_TIMEOUT)
407 add_opt.ext.timeout = IPSET_MAX_TIMEOUT;
408 if (info->add_set.index != IPSET_INVALID_ID)
409 ip_set_add(info->add_set.index, skb, par, &add_opt);
410 if (info->del_set.index != IPSET_INVALID_ID)
411 ip_set_del(info->del_set.index, skb, par, &del_opt);
412 if (info->map_set.index != IPSET_INVALID_ID) {
413 map_opt.cmdflags |= info->flags & (IPSET_FLAG_MAP_SKBMARK |
414 IPSET_FLAG_MAP_SKBPRIO |
415 IPSET_FLAG_MAP_SKBQUEUE);
416 ret = match_set(info->map_set.index, skb, par, &map_opt,
417 info->map_set.flags & IPSET_INV_MATCH);
418 if (!ret)
419 return XT_CONTINUE;
420 if (map_opt.cmdflags & IPSET_FLAG_MAP_SKBMARK)
421 skb->mark = (skb->mark & ~MOPT(map_opt,skbmarkmask))
422 ^ MOPT(map_opt, skbmark);
423 if (map_opt.cmdflags & IPSET_FLAG_MAP_SKBPRIO)
424 skb->priority = MOPT(map_opt, skbprio);
425 if ((map_opt.cmdflags & IPSET_FLAG_MAP_SKBQUEUE) &&
426 skb->dev &&
427 skb->dev->real_num_tx_queues > MOPT(map_opt, skbqueue))
428 skb_set_queue_mapping(skb, MOPT(map_opt, skbqueue));
429 }
430 return XT_CONTINUE;
431}
432
433static int
434set_target_v3_check_hooks(const struct xt_tgchk_param *par)
435{
436 const struct xt_set_info_target_v3 *info = par->targinfo;
437
438 if (info->map_set.index != IPSET_INVALID_ID) {
439 if (strncmp(par->table, "mangle", 7)) {
440 pr_info_ratelimited("--map-set only usable from mangle table\n");
441 return -EINVAL;
442 }
443 if (((info->flags & IPSET_FLAG_MAP_SKBPRIO) |
444 (info->flags & IPSET_FLAG_MAP_SKBQUEUE)) &&
445 (par->hook_mask & ~(1 << NF_INET_FORWARD |
446 1 << NF_INET_LOCAL_OUT |
447 1 << NF_INET_POST_ROUTING))) {
448 pr_info_ratelimited("mapping of prio or/and queue is allowed only from OUTPUT/FORWARD/POSTROUTING chains\n");
449 return -EINVAL;
450 }
451 }
452
453 return 0;
454}
455
456static int
457set_target_v3_checkentry(const struct xt_tgchk_param *par)
458{
459 const struct xt_set_info_target_v3 *info = par->targinfo;
460 ip_set_id_t index;
461 int ret = 0;
462
463 if (info->add_set.index != IPSET_INVALID_ID) {
464 index = ip_set_nfnl_get_byindex(par->net,
465 info->add_set.index);
466 if (index == IPSET_INVALID_ID) {
467 pr_info_ratelimited("Cannot find add_set index %u as target\n",
468 info->add_set.index);
469 return -ENOENT;
470 }
471 }
472
473 if (info->del_set.index != IPSET_INVALID_ID) {
474 index = ip_set_nfnl_get_byindex(par->net,
475 info->del_set.index);
476 if (index == IPSET_INVALID_ID) {
477 pr_info_ratelimited("Cannot find del_set index %u as target\n",
478 info->del_set.index);
479 ret = -ENOENT;
480 goto cleanup_add;
481 }
482 }
483
484 if (info->map_set.index != IPSET_INVALID_ID) {
485 index = ip_set_nfnl_get_byindex(par->net,
486 info->map_set.index);
487 if (index == IPSET_INVALID_ID) {
488 pr_info_ratelimited("Cannot find map_set index %u as target\n",
489 info->map_set.index);
490 ret = -ENOENT;
491 goto cleanup_del;
492 }
493 }
494
495 if (info->add_set.dim > IPSET_DIM_MAX ||
496 info->del_set.dim > IPSET_DIM_MAX ||
497 info->map_set.dim > IPSET_DIM_MAX) {
498 pr_info_ratelimited("SET target dimension over the limit!\n");
499 ret = -ERANGE;
500 goto cleanup_mark;
501 }
502
503 return 0;
504cleanup_mark:
505 if (info->map_set.index != IPSET_INVALID_ID)
506 ip_set_nfnl_put(par->net, info->map_set.index);
507cleanup_del:
508 if (info->del_set.index != IPSET_INVALID_ID)
509 ip_set_nfnl_put(par->net, info->del_set.index);
510cleanup_add:
511 if (info->add_set.index != IPSET_INVALID_ID)
512 ip_set_nfnl_put(par->net, info->add_set.index);
513 return ret;
514}
515
516static void
517set_target_v3_destroy(const struct xt_tgdtor_param *par)
518{
519 const struct xt_set_info_target_v3 *info = par->targinfo;
520
521 if (info->add_set.index != IPSET_INVALID_ID)
522 ip_set_nfnl_put(par->net, info->add_set.index);
523 if (info->del_set.index != IPSET_INVALID_ID)
524 ip_set_nfnl_put(par->net, info->del_set.index);
525 if (info->map_set.index != IPSET_INVALID_ID)
526 ip_set_nfnl_put(par->net, info->map_set.index);
527}
528
529static struct xt_match set_matches[] __read_mostly = {
530 {
531 .name = "set",
532 .family = NFPROTO_IPV4,
533 .revision = 0,
534 .match = set_match_v0,
535 .matchsize = sizeof(struct xt_set_info_match_v0),
536 .checkentry = set_match_v0_checkentry,
537 .destroy = set_match_v0_destroy,
538 .me = THIS_MODULE
539 },
540 {
541 .name = "set",
542 .family = NFPROTO_IPV4,
543 .revision = 1,
544 .match = set_match_v1,
545 .matchsize = sizeof(struct xt_set_info_match_v1),
546 .checkentry = set_match_v1_checkentry,
547 .destroy = set_match_v1_destroy,
548 .me = THIS_MODULE
549 },
550 {
551 .name = "set",
552 .family = NFPROTO_IPV6,
553 .revision = 1,
554 .match = set_match_v1,
555 .matchsize = sizeof(struct xt_set_info_match_v1),
556 .checkentry = set_match_v1_checkentry,
557 .destroy = set_match_v1_destroy,
558 .me = THIS_MODULE
559 },
560 /* --return-nomatch flag support */
561 {
562 .name = "set",
563 .family = NFPROTO_IPV4,
564 .revision = 2,
565 .match = set_match_v1,
566 .matchsize = sizeof(struct xt_set_info_match_v1),
567 .checkentry = set_match_v1_checkentry,
568 .destroy = set_match_v1_destroy,
569 .me = THIS_MODULE
570 },
571 {
572 .name = "set",
573 .family = NFPROTO_IPV6,
574 .revision = 2,
575 .match = set_match_v1,
576 .matchsize = sizeof(struct xt_set_info_match_v1),
577 .checkentry = set_match_v1_checkentry,
578 .destroy = set_match_v1_destroy,
579 .me = THIS_MODULE
580 },
581 /* counters support: update, match */
582 {
583 .name = "set",
584 .family = NFPROTO_IPV4,
585 .revision = 3,
586 .match = set_match_v3,
587 .matchsize = sizeof(struct xt_set_info_match_v3),
588 .checkentry = set_match_v3_checkentry,
589 .destroy = set_match_v3_destroy,
590 .me = THIS_MODULE
591 },
592 {
593 .name = "set",
594 .family = NFPROTO_IPV6,
595 .revision = 3,
596 .match = set_match_v3,
597 .matchsize = sizeof(struct xt_set_info_match_v3),
598 .checkentry = set_match_v3_checkentry,
599 .destroy = set_match_v3_destroy,
600 .me = THIS_MODULE
601 },
602 /* new revision for counters support: update, match */
603 {
604 .name = "set",
605 .family = NFPROTO_IPV4,
606 .revision = 4,
607 .match = set_match_v4,
608 .matchsize = sizeof(struct xt_set_info_match_v4),
609 .checkentry = set_match_v4_checkentry,
610 .destroy = set_match_v4_destroy,
611 .me = THIS_MODULE
612 },
613 {
614 .name = "set",
615 .family = NFPROTO_IPV6,
616 .revision = 4,
617 .match = set_match_v4,
618 .matchsize = sizeof(struct xt_set_info_match_v4),
619 .checkentry = set_match_v4_checkentry,
620 .destroy = set_match_v4_destroy,
621 .me = THIS_MODULE
622 },
623};
624
625static struct xt_target set_targets[] __read_mostly = {
626 {
627 .name = "SET",
628 .revision = 0,
629 .family = NFPROTO_IPV4,
630 .target = set_target_v0,
631 .targetsize = sizeof(struct xt_set_info_target_v0),
632 .checkentry = set_target_v0_checkentry,
633 .destroy = set_target_v0_destroy,
634 .me = THIS_MODULE
635 },
636 {
637 .name = "SET",
638 .revision = 1,
639 .family = NFPROTO_IPV4,
640 .target = set_target_v1,
641 .targetsize = sizeof(struct xt_set_info_target_v1),
642 .checkentry = set_target_v1_checkentry,
643 .destroy = set_target_v1_destroy,
644 .me = THIS_MODULE
645 },
646 {
647 .name = "SET",
648 .revision = 1,
649 .family = NFPROTO_IPV6,
650 .target = set_target_v1,
651 .targetsize = sizeof(struct xt_set_info_target_v1),
652 .checkentry = set_target_v1_checkentry,
653 .destroy = set_target_v1_destroy,
654 .me = THIS_MODULE
655 },
656 /* --timeout and --exist flags support */
657 {
658 .name = "SET",
659 .revision = 2,
660 .family = NFPROTO_IPV4,
661 .target = set_target_v2,
662 .targetsize = sizeof(struct xt_set_info_target_v2),
663 .checkentry = set_target_v2_checkentry,
664 .destroy = set_target_v2_destroy,
665 .me = THIS_MODULE
666 },
667 {
668 .name = "SET",
669 .revision = 2,
670 .family = NFPROTO_IPV6,
671 .target = set_target_v2,
672 .targetsize = sizeof(struct xt_set_info_target_v2),
673 .checkentry = set_target_v2_checkentry,
674 .destroy = set_target_v2_destroy,
675 .me = THIS_MODULE
676 },
677 /* --map-set support */
678 {
679 .name = "SET",
680 .revision = 3,
681 .family = NFPROTO_IPV4,
682 .target = set_target_v3,
683 .targetsize = sizeof(struct xt_set_info_target_v3),
684 .check_hooks = set_target_v3_check_hooks,
685 .checkentry = set_target_v3_checkentry,
686 .destroy = set_target_v3_destroy,
687 .me = THIS_MODULE
688 },
689 {
690 .name = "SET",
691 .revision = 3,
692 .family = NFPROTO_IPV6,
693 .target = set_target_v3,
694 .targetsize = sizeof(struct xt_set_info_target_v3),
695 .check_hooks = set_target_v3_check_hooks,
696 .checkentry = set_target_v3_checkentry,
697 .destroy = set_target_v3_destroy,
698 .me = THIS_MODULE
699 },
700};
701
702static int __init xt_set_init(void)
703{
704 int ret = xt_register_matches(set_matches, ARRAY_SIZE(set_matches));
705
706 if (!ret) {
707 ret = xt_register_targets(set_targets,
708 ARRAY_SIZE(set_targets));
709 if (ret)
710 xt_unregister_matches(set_matches,
711 ARRAY_SIZE(set_matches));
712 }
713 return ret;
714}
715
716static void __exit xt_set_fini(void)
717{
718 xt_unregister_matches(set_matches, ARRAY_SIZE(set_matches));
719 xt_unregister_targets(set_targets, ARRAY_SIZE(set_targets));
720}
721
722module_init(xt_set_init);
723module_exit(xt_set_fini);