1 /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org>
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 void
146 hash_netportnet4_init(struct hash_netportnet4_elem *e)
147 {
148 	e->cidr[0] = HOST_MASK;
149 	e->cidr[1] = HOST_MASK;
150 }
151 
152 static int
153 hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
154 		      const struct xt_action_param *par,
155 		      enum ipset_adt adt, struct ip_set_adt_opt *opt)
156 {
157 	const struct hash_netportnet4 *h = set->data;
158 	ipset_adtfn adtfn = set->variant->adt[adt];
159 	struct hash_netportnet4_elem e = { };
160 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
161 
162 	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
163 	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
164 	if (adt == IPSET_TEST)
165 		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
166 
167 	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
168 				 &e.port, &e.proto))
169 		return -EINVAL;
170 
171 	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
172 	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
173 	e.ip[0] &= ip_set_netmask(e.cidr[0]);
174 	e.ip[1] &= ip_set_netmask(e.cidr[1]);
175 
176 	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
177 }
178 
179 static int
180 hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
181 		      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
182 {
183 	const struct hash_netportnet4 *h = set->data;
184 	ipset_adtfn adtfn = set->variant->adt[adt];
185 	struct hash_netportnet4_elem e = { };
186 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
187 	u32 ip = 0, ip_to = 0, p = 0, port, port_to;
188 	u32 ip2_from = 0, ip2_to = 0, ip2;
189 	bool with_ports = false;
190 	int ret;
191 
192 	if (tb[IPSET_ATTR_LINENO])
193 		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
194 
195 	hash_netportnet4_init(&e);
196 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
197 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
198 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
199 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
200 		return -IPSET_ERR_PROTOCOL;
201 
202 	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
203 	if (ret)
204 		return ret;
205 
206 	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
207 	if (ret)
208 		return ret;
209 
210 	ret = ip_set_get_extensions(set, tb, &ext);
211 	if (ret)
212 		return ret;
213 
214 	if (tb[IPSET_ATTR_CIDR]) {
215 		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
216 		if (e.cidr[0] > HOST_MASK)
217 			return -IPSET_ERR_INVALID_CIDR;
218 	}
219 
220 	if (tb[IPSET_ATTR_CIDR2]) {
221 		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
222 		if (e.cidr[1] > HOST_MASK)
223 			return -IPSET_ERR_INVALID_CIDR;
224 	}
225 
226 	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
227 
228 	if (tb[IPSET_ATTR_PROTO]) {
229 		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
230 		with_ports = ip_set_proto_with_ports(e.proto);
231 
232 		if (e.proto == 0)
233 			return -IPSET_ERR_INVALID_PROTO;
234 	} else {
235 		return -IPSET_ERR_MISSING_PROTO;
236 	}
237 
238 	if (!(with_ports || e.proto == IPPROTO_ICMP))
239 		e.port = 0;
240 
241 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
242 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
243 
244 		if (cadt_flags & IPSET_FLAG_NOMATCH)
245 			flags |= (IPSET_FLAG_NOMATCH << 16);
246 	}
247 
248 	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
249 	if (adt == IPSET_TEST ||
250 	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
251 		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
252 		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
253 		ret = adtfn(set, &e, &ext, &ext, flags);
254 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
255 		       ip_set_eexist(ret, flags) ? 0 : ret;
256 	}
257 
258 	ip_to = ip;
259 	if (tb[IPSET_ATTR_IP_TO]) {
260 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
261 		if (ret)
262 			return ret;
263 		if (ip > ip_to)
264 			swap(ip, ip_to);
265 		if (unlikely(ip + UINT_MAX == ip_to))
266 			return -IPSET_ERR_HASH_RANGE;
267 	} else {
268 		ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
269 	}
270 
271 	port_to = port = ntohs(e.port);
272 	if (tb[IPSET_ATTR_PORT_TO]) {
273 		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
274 		if (port > port_to)
275 			swap(port, port_to);
276 	}
277 
278 	ip2_to = ip2_from;
279 	if (tb[IPSET_ATTR_IP2_TO]) {
280 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
281 		if (ret)
282 			return ret;
283 		if (ip2_from > ip2_to)
284 			swap(ip2_from, ip2_to);
285 		if (unlikely(ip2_from + UINT_MAX == ip2_to))
286 			return -IPSET_ERR_HASH_RANGE;
287 	} else {
288 		ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
289 	}
290 
291 	if (retried) {
292 		ip = ntohl(h->next.ip[0]);
293 		p = ntohs(h->next.port);
294 		ip2 = ntohl(h->next.ip[1]);
295 	} else {
296 		p = port;
297 		ip2 = ip2_from;
298 	}
299 
300 	do {
301 		e.ip[0] = htonl(ip);
302 		ip = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
303 		for (; p <= port_to; p++) {
304 			e.port = htons(p);
305 			do {
306 				e.ip[1] = htonl(ip2);
307 				ip2 = ip_set_range_to_cidr(ip2, ip2_to,
308 							   &e.cidr[1]);
309 				ret = adtfn(set, &e, &ext, &ext, flags);
310 				if (ret && !ip_set_eexist(ret, flags))
311 					return ret;
312 
313 				ret = 0;
314 			} while (ip2++ < ip2_to);
315 			ip2 = ip2_from;
316 		}
317 		p = port;
318 	} while (ip++ < ip_to);
319 	return ret;
320 }
321 
322 /* IPv6 variant */
323 
324 struct hash_netportnet6_elem {
325 	union nf_inet_addr ip[2];
326 	__be16 port;
327 	union {
328 		u8 cidr[2];
329 		u16 ccmp;
330 	};
331 	u16 padding;
332 	u8 nomatch;
333 	u8 proto;
334 };
335 
336 /* Common functions */
337 
338 static inline bool
339 hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
340 			    const struct hash_netportnet6_elem *ip2,
341 			    u32 *multi)
342 {
343 	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
344 	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
345 	       ip1->ccmp == ip2->ccmp &&
346 	       ip1->port == ip2->port &&
347 	       ip1->proto == ip2->proto;
348 }
349 
350 static inline int
351 hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
352 {
353 	return elem->nomatch ? -ENOTEMPTY : 1;
354 }
355 
356 static inline void
357 hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
358 {
359 	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
360 }
361 
362 static inline void
363 hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
364 {
365 	swap(*flags, elem->nomatch);
366 }
367 
368 static inline void
369 hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
370 				 struct hash_netportnet6_elem *orig)
371 {
372 	elem->ip[1] = orig->ip[1];
373 }
374 
375 static inline void
376 hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
377 			      u8 cidr, bool inner)
378 {
379 	if (inner) {
380 		ip6_netmask(&elem->ip[1], cidr);
381 		elem->cidr[1] = cidr;
382 	} else {
383 		ip6_netmask(&elem->ip[0], cidr);
384 		elem->cidr[0] = cidr;
385 	}
386 }
387 
388 static bool
389 hash_netportnet6_data_list(struct sk_buff *skb,
390 			   const struct hash_netportnet6_elem *data)
391 {
392 	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
393 
394 	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
395 	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
396 	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
397 	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
398 	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
399 	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
400 	    (flags &&
401 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
402 		goto nla_put_failure;
403 	return false;
404 
405 nla_put_failure:
406 	return true;
407 }
408 
409 static inline void
410 hash_netportnet6_data_next(struct hash_netportnet6_elem *next,
411 			   const struct hash_netportnet6_elem *d)
412 {
413 	next->port = d->port;
414 }
415 
416 #undef MTYPE
417 #undef HOST_MASK
418 
419 #define MTYPE		hash_netportnet6
420 #define HOST_MASK	128
421 #define IP_SET_EMIT_CREATE
422 #include "ip_set_hash_gen.h"
423 
424 static void
425 hash_netportnet6_init(struct hash_netportnet6_elem *e)
426 {
427 	e->cidr[0] = HOST_MASK;
428 	e->cidr[1] = HOST_MASK;
429 }
430 
431 static int
432 hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
433 		      const struct xt_action_param *par,
434 		      enum ipset_adt adt, struct ip_set_adt_opt *opt)
435 {
436 	const struct hash_netportnet6 *h = set->data;
437 	ipset_adtfn adtfn = set->variant->adt[adt];
438 	struct hash_netportnet6_elem e = { };
439 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
440 
441 	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
442 	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
443 	if (adt == IPSET_TEST)
444 		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
445 
446 	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
447 				 &e.port, &e.proto))
448 		return -EINVAL;
449 
450 	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
451 	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
452 	ip6_netmask(&e.ip[0], e.cidr[0]);
453 	ip6_netmask(&e.ip[1], e.cidr[1]);
454 
455 	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
456 }
457 
458 static int
459 hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
460 		      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
461 {
462 	const struct hash_netportnet6 *h = set->data;
463 	ipset_adtfn adtfn = set->variant->adt[adt];
464 	struct hash_netportnet6_elem e = { };
465 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
466 	u32 port, port_to;
467 	bool with_ports = false;
468 	int ret;
469 
470 	if (tb[IPSET_ATTR_LINENO])
471 		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
472 
473 	hash_netportnet6_init(&e);
474 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
475 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
476 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
477 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
478 		return -IPSET_ERR_PROTOCOL;
479 	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
480 		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
481 
482 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
483 	if (ret)
484 		return ret;
485 
486 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
487 	if (ret)
488 		return ret;
489 
490 	ret = ip_set_get_extensions(set, tb, &ext);
491 	if (ret)
492 		return ret;
493 
494 	if (tb[IPSET_ATTR_CIDR]) {
495 		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
496 		if (e.cidr[0] > HOST_MASK)
497 			return -IPSET_ERR_INVALID_CIDR;
498 	}
499 
500 	if (tb[IPSET_ATTR_CIDR2]) {
501 		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
502 		if (e.cidr[1] > HOST_MASK)
503 			return -IPSET_ERR_INVALID_CIDR;
504 	}
505 
506 	ip6_netmask(&e.ip[0], e.cidr[0]);
507 	ip6_netmask(&e.ip[1], e.cidr[1]);
508 
509 	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
510 
511 	if (tb[IPSET_ATTR_PROTO]) {
512 		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
513 		with_ports = ip_set_proto_with_ports(e.proto);
514 
515 		if (e.proto == 0)
516 			return -IPSET_ERR_INVALID_PROTO;
517 	} else {
518 		return -IPSET_ERR_MISSING_PROTO;
519 	}
520 
521 	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
522 		e.port = 0;
523 
524 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
525 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
526 
527 		if (cadt_flags & IPSET_FLAG_NOMATCH)
528 			flags |= (IPSET_FLAG_NOMATCH << 16);
529 	}
530 
531 	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
532 		ret = adtfn(set, &e, &ext, &ext, flags);
533 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
534 		       ip_set_eexist(ret, flags) ? 0 : ret;
535 	}
536 
537 	port = ntohs(e.port);
538 	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
539 	if (port > port_to)
540 		swap(port, port_to);
541 
542 	if (retried)
543 		port = ntohs(h->next.port);
544 	for (; port <= port_to; port++) {
545 		e.port = htons(port);
546 		ret = adtfn(set, &e, &ext, &ext, flags);
547 
548 		if (ret && !ip_set_eexist(ret, flags))
549 			return ret;
550 
551 		ret = 0;
552 	}
553 	return ret;
554 }
555 
556 static struct ip_set_type hash_netportnet_type __read_mostly = {
557 	.name		= "hash:net,port,net",
558 	.protocol	= IPSET_PROTOCOL,
559 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
560 			  IPSET_TYPE_NOMATCH,
561 	.dimension	= IPSET_DIM_THREE,
562 	.family		= NFPROTO_UNSPEC,
563 	.revision_min	= IPSET_TYPE_REV_MIN,
564 	.revision_max	= IPSET_TYPE_REV_MAX,
565 	.create		= hash_netportnet_create,
566 	.create_policy	= {
567 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
568 		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
569 		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
570 		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
571 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
572 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
573 	},
574 	.adt_policy	= {
575 		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
576 		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
577 		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
578 		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
579 		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
580 		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
581 		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
582 		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
583 		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
584 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
585 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
586 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
587 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
588 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
589 		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING,
590 					    .len  = IPSET_MAX_COMMENT_SIZE },
591 		[IPSET_ATTR_SKBMARK]	= { .type = NLA_U64 },
592 		[IPSET_ATTR_SKBPRIO]	= { .type = NLA_U32 },
593 		[IPSET_ATTR_SKBQUEUE]	= { .type = NLA_U16 },
594 	},
595 	.me		= THIS_MODULE,
596 };
597 
598 static int __init
599 hash_netportnet_init(void)
600 {
601 	return ip_set_type_register(&hash_netportnet_type);
602 }
603 
604 static void __exit
605 hash_netportnet_fini(void)
606 {
607 	rcu_barrier();
608 	ip_set_type_unregister(&hash_netportnet_type);
609 }
610 
611 module_init(hash_netportnet_init);
612 module_exit(hash_netportnet_fini);
613