1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu> |
3 | * Patrick Schaaf <bof@bof.de> |
4 | * Martin Josefsson <gandalf@wlug.westbo.se> |
5 | * Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org> |
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 | |
19 | MODULE_LICENSE("GPL" ); |
20 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@netfilter.org>" ); |
21 | MODULE_DESCRIPTION("Xtables: IP set match and target module" ); |
22 | MODULE_ALIAS("xt_SET" ); |
23 | MODULE_ALIAS("ipt_set" ); |
24 | MODULE_ALIAS("ip6t_set" ); |
25 | MODULE_ALIAS("ipt_SET" ); |
26 | MODULE_ALIAS("ip6t_SET" ); |
27 | |
28 | static inline int |
29 | match_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(id: 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) \ |
39 | struct 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 | |
53 | static bool |
54 | set_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(index: info->match_set.index, skb, par, opt: &opt, |
63 | inv: info->match_set.u.compat.flags & IPSET_INV_MATCH); |
64 | } |
65 | |
66 | static void |
67 | compat_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 | |
82 | static int |
83 | set_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(net: par->net, index: 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(net: par->net, index: info->match_set.index); |
98 | return -ERANGE; |
99 | } |
100 | |
101 | /* Fill out compatibility data */ |
102 | compat_flags(info: &info->match_set); |
103 | |
104 | return 0; |
105 | } |
106 | |
107 | static void |
108 | set_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(net: par->net, index: info->match_set.index); |
113 | } |
114 | |
115 | /* Revision 1 match */ |
116 | |
117 | static bool |
118 | set_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(index: info->match_set.index, skb, par, opt: &opt, |
130 | inv: info->match_set.flags & IPSET_INV_MATCH); |
131 | } |
132 | |
133 | static int |
134 | set_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(net: par->net, index: 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(net: par->net, index: info->match_set.index); |
149 | return -ERANGE; |
150 | } |
151 | |
152 | return 0; |
153 | } |
154 | |
155 | static void |
156 | set_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(net: par->net, index: info->match_set.index); |
161 | } |
162 | |
163 | /* Revision 3 match */ |
164 | |
165 | static bool |
166 | set_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(index: info->match_set.index, skb, par, opt: &opt, |
180 | inv: 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 | |
188 | static bool |
189 | set_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(index: info->match_set.index, skb, par, opt: &opt, |
203 | inv: 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 | |
211 | static unsigned int |
212 | set_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(id: info->add_set.index, skb, par, opt: &add_opt); |
225 | if (info->del_set.index != IPSET_INVALID_ID) |
226 | ip_set_del(id: info->del_set.index, skb, par, opt: &del_opt); |
227 | |
228 | return XT_CONTINUE; |
229 | } |
230 | |
231 | static int |
232 | set_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(net: par->net, index: 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(net: par->net, index: 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(net: par->net, index: 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(net: par->net, index: info->add_set.index); |
261 | if (info->del_set.index != IPSET_INVALID_ID) |
262 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
263 | return -ERANGE; |
264 | } |
265 | |
266 | /* Fill out compatibility data */ |
267 | compat_flags(info: &info->add_set); |
268 | compat_flags(info: &info->del_set); |
269 | |
270 | return 0; |
271 | } |
272 | |
273 | static void |
274 | set_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(net: par->net, index: info->add_set.index); |
280 | if (info->del_set.index != IPSET_INVALID_ID) |
281 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
282 | } |
283 | |
284 | /* Revision 1 target */ |
285 | |
286 | static unsigned int |
287 | set_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(id: info->add_set.index, skb, par, opt: &add_opt); |
300 | if (info->del_set.index != IPSET_INVALID_ID) |
301 | ip_set_del(id: info->del_set.index, skb, par, opt: &del_opt); |
302 | |
303 | return XT_CONTINUE; |
304 | } |
305 | |
306 | static int |
307 | set_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(net: par->net, index: 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(net: par->net, index: 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(net: par->net, index: 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(net: par->net, index: info->add_set.index); |
336 | if (info->del_set.index != IPSET_INVALID_ID) |
337 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
338 | return -ERANGE; |
339 | } |
340 | |
341 | return 0; |
342 | } |
343 | |
344 | static void |
345 | set_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(net: par->net, index: info->add_set.index); |
351 | if (info->del_set.index != IPSET_INVALID_ID) |
352 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
353 | } |
354 | |
355 | /* Revision 2 target */ |
356 | |
357 | static unsigned int |
358 | set_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(id: info->add_set.index, skb, par, opt: &add_opt); |
375 | if (info->del_set.index != IPSET_INVALID_ID) |
376 | ip_set_del(id: info->del_set.index, skb, par, opt: &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 | |
388 | static unsigned int |
389 | set_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(id: info->add_set.index, skb, par, opt: &add_opt); |
410 | if (info->del_set.index != IPSET_INVALID_ID) |
411 | ip_set_del(id: info->del_set.index, skb, par, opt: &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(index: info->map_set.index, skb, par, opt: &map_opt, |
417 | inv: 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 | |
433 | static int |
434 | set_target_v3_checkentry(const struct xt_tgchk_param *par) |
435 | { |
436 | const struct xt_set_info_target_v3 *info = par->targinfo; |
437 | ip_set_id_t index; |
438 | int ret = 0; |
439 | |
440 | if (info->add_set.index != IPSET_INVALID_ID) { |
441 | index = ip_set_nfnl_get_byindex(net: par->net, |
442 | index: info->add_set.index); |
443 | if (index == IPSET_INVALID_ID) { |
444 | pr_info_ratelimited("Cannot find add_set index %u as target\n" , |
445 | info->add_set.index); |
446 | return -ENOENT; |
447 | } |
448 | } |
449 | |
450 | if (info->del_set.index != IPSET_INVALID_ID) { |
451 | index = ip_set_nfnl_get_byindex(net: par->net, |
452 | index: info->del_set.index); |
453 | if (index == IPSET_INVALID_ID) { |
454 | pr_info_ratelimited("Cannot find del_set index %u as target\n" , |
455 | info->del_set.index); |
456 | ret = -ENOENT; |
457 | goto cleanup_add; |
458 | } |
459 | } |
460 | |
461 | if (info->map_set.index != IPSET_INVALID_ID) { |
462 | if (strncmp(par->table, "mangle" , 7)) { |
463 | pr_info_ratelimited("--map-set only usable from mangle table\n" ); |
464 | ret = -EINVAL; |
465 | goto cleanup_del; |
466 | } |
467 | if (((info->flags & IPSET_FLAG_MAP_SKBPRIO) | |
468 | (info->flags & IPSET_FLAG_MAP_SKBQUEUE)) && |
469 | (par->hook_mask & ~(1 << NF_INET_FORWARD | |
470 | 1 << NF_INET_LOCAL_OUT | |
471 | 1 << NF_INET_POST_ROUTING))) { |
472 | pr_info_ratelimited("mapping of prio or/and queue is allowed only from OUTPUT/FORWARD/POSTROUTING chains\n" ); |
473 | ret = -EINVAL; |
474 | goto cleanup_del; |
475 | } |
476 | index = ip_set_nfnl_get_byindex(net: par->net, |
477 | index: info->map_set.index); |
478 | if (index == IPSET_INVALID_ID) { |
479 | pr_info_ratelimited("Cannot find map_set index %u as target\n" , |
480 | info->map_set.index); |
481 | ret = -ENOENT; |
482 | goto cleanup_del; |
483 | } |
484 | } |
485 | |
486 | if (info->add_set.dim > IPSET_DIM_MAX || |
487 | info->del_set.dim > IPSET_DIM_MAX || |
488 | info->map_set.dim > IPSET_DIM_MAX) { |
489 | pr_info_ratelimited("SET target dimension over the limit!\n" ); |
490 | ret = -ERANGE; |
491 | goto cleanup_mark; |
492 | } |
493 | |
494 | return 0; |
495 | cleanup_mark: |
496 | if (info->map_set.index != IPSET_INVALID_ID) |
497 | ip_set_nfnl_put(net: par->net, index: info->map_set.index); |
498 | cleanup_del: |
499 | if (info->del_set.index != IPSET_INVALID_ID) |
500 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
501 | cleanup_add: |
502 | if (info->add_set.index != IPSET_INVALID_ID) |
503 | ip_set_nfnl_put(net: par->net, index: info->add_set.index); |
504 | return ret; |
505 | } |
506 | |
507 | static void |
508 | set_target_v3_destroy(const struct xt_tgdtor_param *par) |
509 | { |
510 | const struct xt_set_info_target_v3 *info = par->targinfo; |
511 | |
512 | if (info->add_set.index != IPSET_INVALID_ID) |
513 | ip_set_nfnl_put(net: par->net, index: info->add_set.index); |
514 | if (info->del_set.index != IPSET_INVALID_ID) |
515 | ip_set_nfnl_put(net: par->net, index: info->del_set.index); |
516 | if (info->map_set.index != IPSET_INVALID_ID) |
517 | ip_set_nfnl_put(net: par->net, index: info->map_set.index); |
518 | } |
519 | |
520 | static struct xt_match set_matches[] __read_mostly = { |
521 | { |
522 | .name = "set" , |
523 | .family = NFPROTO_IPV4, |
524 | .revision = 0, |
525 | .match = set_match_v0, |
526 | .matchsize = sizeof(struct xt_set_info_match_v0), |
527 | .checkentry = set_match_v0_checkentry, |
528 | .destroy = set_match_v0_destroy, |
529 | .me = THIS_MODULE |
530 | }, |
531 | { |
532 | .name = "set" , |
533 | .family = NFPROTO_IPV4, |
534 | .revision = 1, |
535 | .match = set_match_v1, |
536 | .matchsize = sizeof(struct xt_set_info_match_v1), |
537 | .checkentry = set_match_v1_checkentry, |
538 | .destroy = set_match_v1_destroy, |
539 | .me = THIS_MODULE |
540 | }, |
541 | { |
542 | .name = "set" , |
543 | .family = NFPROTO_IPV6, |
544 | .revision = 1, |
545 | .match = set_match_v1, |
546 | .matchsize = sizeof(struct xt_set_info_match_v1), |
547 | .checkentry = set_match_v1_checkentry, |
548 | .destroy = set_match_v1_destroy, |
549 | .me = THIS_MODULE |
550 | }, |
551 | /* --return-nomatch flag support */ |
552 | { |
553 | .name = "set" , |
554 | .family = NFPROTO_IPV4, |
555 | .revision = 2, |
556 | .match = set_match_v1, |
557 | .matchsize = sizeof(struct xt_set_info_match_v1), |
558 | .checkentry = set_match_v1_checkentry, |
559 | .destroy = set_match_v1_destroy, |
560 | .me = THIS_MODULE |
561 | }, |
562 | { |
563 | .name = "set" , |
564 | .family = NFPROTO_IPV6, |
565 | .revision = 2, |
566 | .match = set_match_v1, |
567 | .matchsize = sizeof(struct xt_set_info_match_v1), |
568 | .checkentry = set_match_v1_checkentry, |
569 | .destroy = set_match_v1_destroy, |
570 | .me = THIS_MODULE |
571 | }, |
572 | /* counters support: update, match */ |
573 | { |
574 | .name = "set" , |
575 | .family = NFPROTO_IPV4, |
576 | .revision = 3, |
577 | .match = set_match_v3, |
578 | .matchsize = sizeof(struct xt_set_info_match_v3), |
579 | .checkentry = set_match_v3_checkentry, |
580 | .destroy = set_match_v3_destroy, |
581 | .me = THIS_MODULE |
582 | }, |
583 | { |
584 | .name = "set" , |
585 | .family = NFPROTO_IPV6, |
586 | .revision = 3, |
587 | .match = set_match_v3, |
588 | .matchsize = sizeof(struct xt_set_info_match_v3), |
589 | .checkentry = set_match_v3_checkentry, |
590 | .destroy = set_match_v3_destroy, |
591 | .me = THIS_MODULE |
592 | }, |
593 | /* new revision for counters support: update, match */ |
594 | { |
595 | .name = "set" , |
596 | .family = NFPROTO_IPV4, |
597 | .revision = 4, |
598 | .match = set_match_v4, |
599 | .matchsize = sizeof(struct xt_set_info_match_v4), |
600 | .checkentry = set_match_v4_checkentry, |
601 | .destroy = set_match_v4_destroy, |
602 | .me = THIS_MODULE |
603 | }, |
604 | { |
605 | .name = "set" , |
606 | .family = NFPROTO_IPV6, |
607 | .revision = 4, |
608 | .match = set_match_v4, |
609 | .matchsize = sizeof(struct xt_set_info_match_v4), |
610 | .checkentry = set_match_v4_checkentry, |
611 | .destroy = set_match_v4_destroy, |
612 | .me = THIS_MODULE |
613 | }, |
614 | }; |
615 | |
616 | static struct xt_target set_targets[] __read_mostly = { |
617 | { |
618 | .name = "SET" , |
619 | .revision = 0, |
620 | .family = NFPROTO_IPV4, |
621 | .target = set_target_v0, |
622 | .targetsize = sizeof(struct xt_set_info_target_v0), |
623 | .checkentry = set_target_v0_checkentry, |
624 | .destroy = set_target_v0_destroy, |
625 | .me = THIS_MODULE |
626 | }, |
627 | { |
628 | .name = "SET" , |
629 | .revision = 1, |
630 | .family = NFPROTO_IPV4, |
631 | .target = set_target_v1, |
632 | .targetsize = sizeof(struct xt_set_info_target_v1), |
633 | .checkentry = set_target_v1_checkentry, |
634 | .destroy = set_target_v1_destroy, |
635 | .me = THIS_MODULE |
636 | }, |
637 | { |
638 | .name = "SET" , |
639 | .revision = 1, |
640 | .family = NFPROTO_IPV6, |
641 | .target = set_target_v1, |
642 | .targetsize = sizeof(struct xt_set_info_target_v1), |
643 | .checkentry = set_target_v1_checkentry, |
644 | .destroy = set_target_v1_destroy, |
645 | .me = THIS_MODULE |
646 | }, |
647 | /* --timeout and --exist flags support */ |
648 | { |
649 | .name = "SET" , |
650 | .revision = 2, |
651 | .family = NFPROTO_IPV4, |
652 | .target = set_target_v2, |
653 | .targetsize = sizeof(struct xt_set_info_target_v2), |
654 | .checkentry = set_target_v2_checkentry, |
655 | .destroy = set_target_v2_destroy, |
656 | .me = THIS_MODULE |
657 | }, |
658 | { |
659 | .name = "SET" , |
660 | .revision = 2, |
661 | .family = NFPROTO_IPV6, |
662 | .target = set_target_v2, |
663 | .targetsize = sizeof(struct xt_set_info_target_v2), |
664 | .checkentry = set_target_v2_checkentry, |
665 | .destroy = set_target_v2_destroy, |
666 | .me = THIS_MODULE |
667 | }, |
668 | /* --map-set support */ |
669 | { |
670 | .name = "SET" , |
671 | .revision = 3, |
672 | .family = NFPROTO_IPV4, |
673 | .target = set_target_v3, |
674 | .targetsize = sizeof(struct xt_set_info_target_v3), |
675 | .checkentry = set_target_v3_checkentry, |
676 | .destroy = set_target_v3_destroy, |
677 | .me = THIS_MODULE |
678 | }, |
679 | { |
680 | .name = "SET" , |
681 | .revision = 3, |
682 | .family = NFPROTO_IPV6, |
683 | .target = set_target_v3, |
684 | .targetsize = sizeof(struct xt_set_info_target_v3), |
685 | .checkentry = set_target_v3_checkentry, |
686 | .destroy = set_target_v3_destroy, |
687 | .me = THIS_MODULE |
688 | }, |
689 | }; |
690 | |
691 | static int __init xt_set_init(void) |
692 | { |
693 | int ret = xt_register_matches(match: set_matches, ARRAY_SIZE(set_matches)); |
694 | |
695 | if (!ret) { |
696 | ret = xt_register_targets(target: set_targets, |
697 | ARRAY_SIZE(set_targets)); |
698 | if (ret) |
699 | xt_unregister_matches(match: set_matches, |
700 | ARRAY_SIZE(set_matches)); |
701 | } |
702 | return ret; |
703 | } |
704 | |
705 | static void __exit xt_set_fini(void) |
706 | { |
707 | xt_unregister_matches(match: set_matches, ARRAY_SIZE(set_matches)); |
708 | xt_unregister_targets(target: set_targets, ARRAY_SIZE(set_targets)); |
709 | } |
710 | |
711 | module_init(xt_set_init); |
712 | module_exit(xt_set_fini); |
713 | |