1 /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
2  *
3  * This program is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License version 2 as
5  * published by the Free Software Foundation.
6  */
7 
8 /* Kernel module implementing an IP set type: the hash:ip,port,net type */
9 
10 #include <linux/jhash.h>
11 #include <linux/module.h>
12 #include <linux/ip.h>
13 #include <linux/skbuff.h>
14 #include <linux/errno.h>
15 #include <linux/random.h>
16 #include <net/ip.h>
17 #include <net/ipv6.h>
18 #include <net/netlink.h>
19 #include <net/tcp.h>
20 
21 #include <linux/netfilter.h>
22 #include <linux/netfilter/ipset/pfxlen.h>
23 #include <linux/netfilter/ipset/ip_set.h>
24 #include <linux/netfilter/ipset/ip_set_getport.h>
25 #include <linux/netfilter/ipset/ip_set_hash.h>
26 
27 #define IPSET_TYPE_REV_MIN	0
28 /*				0    Comments support added */
29 /*				1    Forceadd support added */
30 #define IPSET_TYPE_REV_MAX	2 /* skbinfo support added */
31 
32 MODULE_LICENSE("GPL");
33 MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
34 IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
35 MODULE_ALIAS("ip_set_hash:net,port,net");
36 
37 /* Type specific function prefix */
38 #define HTYPE		hash_netportnet
39 #define IP_SET_HASH_WITH_PROTO
40 #define IP_SET_HASH_WITH_NETS
41 #define IPSET_NET_COUNT 2
42 
43 /* IPv4 variant */
44 
45 /* Member elements */
46 struct hash_netportnet4_elem {
47 	union {
48 		__be32 ip[2];
49 		__be64 ipcmp;
50 	};
51 	__be16 port;
52 	union {
53 		u8 cidr[2];
54 		u16 ccmp;
55 	};
56 	u16 padding;
57 	u8 nomatch;
58 	u8 proto;
59 };
60 
61 /* Common functions */
62 
63 static inline bool
64 hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
65 			   const struct hash_netportnet4_elem *ip2,
66 			   u32 *multi)
67 {
68 	return ip1->ipcmp == ip2->ipcmp &&
69 	       ip1->ccmp == ip2->ccmp &&
70 	       ip1->port == ip2->port &&
71 	       ip1->proto == ip2->proto;
72 }
73 
74 static inline int
75 hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
76 {
77 	return elem->nomatch ? -ENOTEMPTY : 1;
78 }
79 
80 static inline void
81 hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
82 {
83 	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
84 }
85 
86 static inline void
87 hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
88 {
89 	swap(*flags, elem->nomatch);
90 }
91 
92 static inline void
93 hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
94 				struct hash_netportnet4_elem *orig)
95 {
96 	elem->ip[1] = orig->ip[1];
97 }
98 
99 static inline void
100 hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
101 			      u8 cidr, bool inner)
102 {
103 	if (inner) {
104 		elem->ip[1] &= ip_set_netmask(cidr);
105 		elem->cidr[1] = cidr;
106 	} else {
107 		elem->ip[0] &= ip_set_netmask(cidr);
108 		elem->cidr[0] = cidr;
109 	}
110 }
111 
112 static bool
113 hash_netportnet4_data_list(struct sk_buff *skb,
114 			  const struct hash_netportnet4_elem *data)
115 {
116 	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
117 
118 	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
119 	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
120 	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
121 	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
122 	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
123 	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
124 	    (flags &&
125 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
126 		goto nla_put_failure;
127 	return false;
128 
129 nla_put_failure:
130 	return true;
131 }
132 
133 static inline void
134 hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
135 			  const struct hash_netportnet4_elem *d)
136 {
137 	next->ipcmp = d->ipcmp;
138 	next->port = d->port;
139 }
140 
141 #define MTYPE		hash_netportnet4
142 #define HOST_MASK	32
143 #include "ip_set_hash_gen.h"
144 
145 static int
146 hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
147 		     const struct xt_action_param *par,
148 		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
149 {
150 	const struct hash_netportnet *h = set->data;
151 	ipset_adtfn adtfn = set->variant->adt[adt];
152 	struct hash_netportnet4_elem e = { };
153 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
154 
155 	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
156 	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
157 	if (adt == IPSET_TEST)
158 		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
159 
160 	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
161 				 &e.port, &e.proto))
162 		return -EINVAL;
163 
164 	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
165 	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
166 	e.ip[0] &= ip_set_netmask(e.cidr[0]);
167 	e.ip[1] &= ip_set_netmask(e.cidr[1]);
168 
169 	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
170 }
171 
172 static int
173 hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
174 		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
175 {
176 	const struct hash_netportnet *h = set->data;
177 	ipset_adtfn adtfn = set->variant->adt[adt];
178 	struct hash_netportnet4_elem e = { .cidr = { HOST_MASK, HOST_MASK, }, };
179 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
180 	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
181 	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
182 	bool with_ports = false;
183 	int ret;
184 
185 	if (tb[IPSET_ATTR_LINENO])
186 		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
187 
188 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
189 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
190 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
191 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
192 		return -IPSET_ERR_PROTOCOL;
193 
194 	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
195 	if (ret)
196 		return ret;
197 
198 	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
199 	if (ret)
200 		return ret;
201 
202 	ret = ip_set_get_extensions(set, tb, &ext);
203 	if (ret)
204 		return ret;
205 
206 	if (tb[IPSET_ATTR_CIDR]) {
207 		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
208 		if (!e.cidr[0] || e.cidr[0] > HOST_MASK)
209 			return -IPSET_ERR_INVALID_CIDR;
210 	}
211 
212 	if (tb[IPSET_ATTR_CIDR2]) {
213 		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
214 		if (!e.cidr[1] || e.cidr[1] > HOST_MASK)
215 			return -IPSET_ERR_INVALID_CIDR;
216 	}
217 
218 	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
219 
220 	if (tb[IPSET_ATTR_PROTO]) {
221 		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
222 		with_ports = ip_set_proto_with_ports(e.proto);
223 
224 		if (e.proto == 0)
225 			return -IPSET_ERR_INVALID_PROTO;
226 	} else
227 		return -IPSET_ERR_MISSING_PROTO;
228 
229 	if (!(with_ports || e.proto == IPPROTO_ICMP))
230 		e.port = 0;
231 
232 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
233 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
234 		if (cadt_flags & IPSET_FLAG_NOMATCH)
235 			flags |= (IPSET_FLAG_NOMATCH << 16);
236 	}
237 
238 	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
239 	if (adt == IPSET_TEST ||
240 	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
241 		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
242 		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
243 		ret = adtfn(set, &e, &ext, &ext, flags);
244 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
245 		       ip_set_eexist(ret, flags) ? 0 : ret;
246 	}
247 
248 	ip_to = ip;
249 	if (tb[IPSET_ATTR_IP_TO]) {
250 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
251 		if (ret)
252 			return ret;
253 		if (ip > ip_to)
254 			swap(ip, ip_to);
255 		if (unlikely(ip + UINT_MAX == ip_to))
256 			return -IPSET_ERR_HASH_RANGE;
257 	} else
258 		ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
259 
260 	port_to = port = ntohs(e.port);
261 	if (tb[IPSET_ATTR_PORT_TO]) {
262 		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
263 		if (port > port_to)
264 			swap(port, port_to);
265 	}
266 
267 	ip2_to = ip2_from;
268 	if (tb[IPSET_ATTR_IP2_TO]) {
269 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
270 		if (ret)
271 			return ret;
272 		if (ip2_from > ip2_to)
273 			swap(ip2_from, ip2_to);
274 		if (unlikely(ip2_from + UINT_MAX == ip2_to))
275 			return -IPSET_ERR_HASH_RANGE;
276 	} else
277 		ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
278 
279 	if (retried)
280 		ip = ntohl(h->next.ip[0]);
281 
282 	while (!after(ip, ip_to)) {
283 		e.ip[0] = htonl(ip);
284 		ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
285 		p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
286 							  : port;
287 		for (; p <= port_to; p++) {
288 			e.port = htons(p);
289 			ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
290 			       p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
291 							 : ip2_from;
292 			while (!after(ip2, ip2_to)) {
293 				e.ip[1] = htonl(ip2);
294 				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
295 								&e.cidr[1]);
296 				ret = adtfn(set, &e, &ext, &ext, flags);
297 				if (ret && !ip_set_eexist(ret, flags))
298 					return ret;
299 				else
300 					ret = 0;
301 				ip2 = ip2_last + 1;
302 			}
303 		}
304 		ip = ip_last + 1;
305 	}
306 	return ret;
307 }
308 
309 /* IPv6 variant */
310 
311 struct hash_netportnet6_elem {
312 	union nf_inet_addr ip[2];
313 	__be16 port;
314 	union {
315 		u8 cidr[2];
316 		u16 ccmp;
317 	};
318 	u16 padding;
319 	u8 nomatch;
320 	u8 proto;
321 };
322 
323 /* Common functions */
324 
325 static inline bool
326 hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
327 			   const struct hash_netportnet6_elem *ip2,
328 			   u32 *multi)
329 {
330 	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
331 	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
332 	       ip1->ccmp == ip2->ccmp &&
333 	       ip1->port == ip2->port &&
334 	       ip1->proto == ip2->proto;
335 }
336 
337 static inline int
338 hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
339 {
340 	return elem->nomatch ? -ENOTEMPTY : 1;
341 }
342 
343 static inline void
344 hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
345 {
346 	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
347 }
348 
349 static inline void
350 hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
351 {
352 	swap(*flags, elem->nomatch);
353 }
354 
355 static inline void
356 hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
357 				struct hash_netportnet6_elem *orig)
358 {
359 	elem->ip[1] = orig->ip[1];
360 }
361 
362 static inline void
363 hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
364 			      u8 cidr, bool inner)
365 {
366 	if (inner) {
367 		ip6_netmask(&elem->ip[1], cidr);
368 		elem->cidr[1] = cidr;
369 	} else {
370 		ip6_netmask(&elem->ip[0], cidr);
371 		elem->cidr[0] = cidr;
372 	}
373 }
374 
375 static bool
376 hash_netportnet6_data_list(struct sk_buff *skb,
377 			  const struct hash_netportnet6_elem *data)
378 {
379 	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
380 
381 	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
382 	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
383 	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
384 	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
385 	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
386 	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
387 	    (flags &&
388 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
389 		goto nla_put_failure;
390 	return false;
391 
392 nla_put_failure:
393 	return true;
394 }
395 
396 static inline void
397 hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
398 			  const struct hash_netportnet6_elem *d)
399 {
400 	next->port = d->port;
401 }
402 
403 #undef MTYPE
404 #undef HOST_MASK
405 
406 #define MTYPE		hash_netportnet6
407 #define HOST_MASK	128
408 #define IP_SET_EMIT_CREATE
409 #include "ip_set_hash_gen.h"
410 
411 static int
412 hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
413 		     const struct xt_action_param *par,
414 		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
415 {
416 	const struct hash_netportnet *h = set->data;
417 	ipset_adtfn adtfn = set->variant->adt[adt];
418 	struct hash_netportnet6_elem e = { };
419 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
420 
421 	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
422 	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
423 	if (adt == IPSET_TEST)
424 		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
425 
426 	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
427 				 &e.port, &e.proto))
428 		return -EINVAL;
429 
430 	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
431 	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
432 	ip6_netmask(&e.ip[0], e.cidr[0]);
433 	ip6_netmask(&e.ip[1], e.cidr[1]);
434 
435 	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
436 }
437 
438 static int
439 hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
440 		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
441 {
442 	const struct hash_netportnet *h = set->data;
443 	ipset_adtfn adtfn = set->variant->adt[adt];
444 	struct hash_netportnet6_elem e = { .cidr = { HOST_MASK, HOST_MASK, }, };
445 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
446 	u32 port, port_to;
447 	bool with_ports = false;
448 	int ret;
449 
450 	if (tb[IPSET_ATTR_LINENO])
451 		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
452 
453 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
454 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
455 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
456 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
457 		return -IPSET_ERR_PROTOCOL;
458 	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
459 		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
460 
461 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
462 	if (ret)
463 		return ret;
464 
465 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
466 	if (ret)
467 		return ret;
468 
469 	ret = ip_set_get_extensions(set, tb, &ext);
470 	if (ret)
471 		return ret;
472 
473 	if (tb[IPSET_ATTR_CIDR]) {
474 		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
475 		if (!e.cidr[0] || e.cidr[0] > HOST_MASK)
476 			return -IPSET_ERR_INVALID_CIDR;
477 	}
478 
479 	if (tb[IPSET_ATTR_CIDR2]) {
480 		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
481 		if (!e.cidr[1] || e.cidr[1] > HOST_MASK)
482 			return -IPSET_ERR_INVALID_CIDR;
483 	}
484 
485 	ip6_netmask(&e.ip[0], e.cidr[0]);
486 	ip6_netmask(&e.ip[1], e.cidr[1]);
487 
488 	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
489 
490 	if (tb[IPSET_ATTR_PROTO]) {
491 		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
492 		with_ports = ip_set_proto_with_ports(e.proto);
493 
494 		if (e.proto == 0)
495 			return -IPSET_ERR_INVALID_PROTO;
496 	} else
497 		return -IPSET_ERR_MISSING_PROTO;
498 
499 	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
500 		e.port = 0;
501 
502 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
503 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
504 		if (cadt_flags & IPSET_FLAG_NOMATCH)
505 			flags |= (IPSET_FLAG_NOMATCH << 16);
506 	}
507 
508 	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
509 		ret = adtfn(set, &e, &ext, &ext, flags);
510 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
511 		       ip_set_eexist(ret, flags) ? 0 : ret;
512 	}
513 
514 	port = ntohs(e.port);
515 	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
516 	if (port > port_to)
517 		swap(port, port_to);
518 
519 	if (retried)
520 		port = ntohs(h->next.port);
521 	for (; port <= port_to; port++) {
522 		e.port = htons(port);
523 		ret = adtfn(set, &e, &ext, &ext, flags);
524 
525 		if (ret && !ip_set_eexist(ret, flags))
526 			return ret;
527 		else
528 			ret = 0;
529 	}
530 	return ret;
531 }
532 
533 static struct ip_set_type hash_netportnet_type __read_mostly = {
534 	.name		= "hash:net,port,net",
535 	.protocol	= IPSET_PROTOCOL,
536 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
537 			  IPSET_TYPE_NOMATCH,
538 	.dimension	= IPSET_DIM_THREE,
539 	.family		= NFPROTO_UNSPEC,
540 	.revision_min	= IPSET_TYPE_REV_MIN,
541 	.revision_max	= IPSET_TYPE_REV_MAX,
542 	.create		= hash_netportnet_create,
543 	.create_policy	= {
544 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
545 		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
546 		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
547 		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
548 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
549 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
550 	},
551 	.adt_policy	= {
552 		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
553 		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
554 		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
555 		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
556 		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
557 		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
558 		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
559 		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
560 		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
561 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
562 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
563 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
564 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
565 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
566 		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING,
567 					    .len  = IPSET_MAX_COMMENT_SIZE },
568 		[IPSET_ATTR_SKBMARK]	= { .type = NLA_U64 },
569 		[IPSET_ATTR_SKBPRIO]	= { .type = NLA_U32 },
570 		[IPSET_ATTR_SKBQUEUE]	= { .type = NLA_U16 },
571 	},
572 	.me		= THIS_MODULE,
573 };
574 
575 static int __init
576 hash_netportnet_init(void)
577 {
578 	return ip_set_type_register(&hash_netportnet_type);
579 }
580 
581 static void __exit
582 hash_netportnet_fini(void)
583 {
584 	rcu_barrier();
585 	ip_set_type_unregister(&hash_netportnet_type);
586 }
587 
588 module_init(hash_netportnet_init);
589 module_exit(hash_netportnet_fini);
590