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 
230 	if (!(with_ports || e.proto == IPPROTO_ICMP))
231 		e.port = 0;
232 
233 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
234 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
235 
236 		if (cadt_flags & IPSET_FLAG_NOMATCH)
237 			flags |= (IPSET_FLAG_NOMATCH << 16);
238 	}
239 
240 	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
241 	if (adt == IPSET_TEST ||
242 	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
243 		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
244 		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
245 		ret = adtfn(set, &e, &ext, &ext, flags);
246 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
247 		       ip_set_eexist(ret, flags) ? 0 : ret;
248 	}
249 
250 	ip_to = ip;
251 	if (tb[IPSET_ATTR_IP_TO]) {
252 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
253 		if (ret)
254 			return ret;
255 		if (ip > ip_to)
256 			swap(ip, ip_to);
257 		if (unlikely(ip + UINT_MAX == ip_to))
258 			return -IPSET_ERR_HASH_RANGE;
259 	} else {
260 		ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
261 	}
262 
263 	port_to = port = ntohs(e.port);
264 	if (tb[IPSET_ATTR_PORT_TO]) {
265 		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
266 		if (port > port_to)
267 			swap(port, port_to);
268 	}
269 
270 	ip2_to = ip2_from;
271 	if (tb[IPSET_ATTR_IP2_TO]) {
272 		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
273 		if (ret)
274 			return ret;
275 		if (ip2_from > ip2_to)
276 			swap(ip2_from, ip2_to);
277 		if (unlikely(ip2_from + UINT_MAX == ip2_to))
278 			return -IPSET_ERR_HASH_RANGE;
279 	} else {
280 		ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
281 	}
282 
283 	if (retried)
284 		ip = ntohl(h->next.ip[0]);
285 
286 	while (!after(ip, ip_to)) {
287 		e.ip[0] = htonl(ip);
288 		ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
289 		p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
290 							  : port;
291 		for (; p <= port_to; p++) {
292 			e.port = htons(p);
293 			ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
294 			       p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
295 							 : ip2_from;
296 			while (!after(ip2, ip2_to)) {
297 				e.ip[1] = htonl(ip2);
298 				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
299 								&e.cidr[1]);
300 				ret = adtfn(set, &e, &ext, &ext, flags);
301 				if (ret && !ip_set_eexist(ret, flags))
302 					return ret;
303 
304 				ret = 0;
305 				ip2 = ip2_last + 1;
306 			}
307 		}
308 		ip = ip_last + 1;
309 	}
310 	return ret;
311 }
312 
313 /* IPv6 variant */
314 
315 struct hash_netportnet6_elem {
316 	union nf_inet_addr ip[2];
317 	__be16 port;
318 	union {
319 		u8 cidr[2];
320 		u16 ccmp;
321 	};
322 	u16 padding;
323 	u8 nomatch;
324 	u8 proto;
325 };
326 
327 /* Common functions */
328 
329 static inline bool
330 hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
331 			    const struct hash_netportnet6_elem *ip2,
332 			    u32 *multi)
333 {
334 	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
335 	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
336 	       ip1->ccmp == ip2->ccmp &&
337 	       ip1->port == ip2->port &&
338 	       ip1->proto == ip2->proto;
339 }
340 
341 static inline int
342 hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
343 {
344 	return elem->nomatch ? -ENOTEMPTY : 1;
345 }
346 
347 static inline void
348 hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
349 {
350 	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
351 }
352 
353 static inline void
354 hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
355 {
356 	swap(*flags, elem->nomatch);
357 }
358 
359 static inline void
360 hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
361 				 struct hash_netportnet6_elem *orig)
362 {
363 	elem->ip[1] = orig->ip[1];
364 }
365 
366 static inline void
367 hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
368 			      u8 cidr, bool inner)
369 {
370 	if (inner) {
371 		ip6_netmask(&elem->ip[1], cidr);
372 		elem->cidr[1] = cidr;
373 	} else {
374 		ip6_netmask(&elem->ip[0], cidr);
375 		elem->cidr[0] = cidr;
376 	}
377 }
378 
379 static bool
380 hash_netportnet6_data_list(struct sk_buff *skb,
381 			   const struct hash_netportnet6_elem *data)
382 {
383 	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
384 
385 	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
386 	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
387 	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
388 	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
389 	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
390 	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
391 	    (flags &&
392 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
393 		goto nla_put_failure;
394 	return false;
395 
396 nla_put_failure:
397 	return true;
398 }
399 
400 static inline void
401 hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
402 			   const struct hash_netportnet6_elem *d)
403 {
404 	next->port = d->port;
405 }
406 
407 #undef MTYPE
408 #undef HOST_MASK
409 
410 #define MTYPE		hash_netportnet6
411 #define HOST_MASK	128
412 #define IP_SET_EMIT_CREATE
413 #include "ip_set_hash_gen.h"
414 
415 static int
416 hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
417 		      const struct xt_action_param *par,
418 		      enum ipset_adt adt, struct ip_set_adt_opt *opt)
419 {
420 	const struct hash_netportnet *h = set->data;
421 	ipset_adtfn adtfn = set->variant->adt[adt];
422 	struct hash_netportnet6_elem e = { };
423 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
424 
425 	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
426 	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
427 	if (adt == IPSET_TEST)
428 		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
429 
430 	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
431 				 &e.port, &e.proto))
432 		return -EINVAL;
433 
434 	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
435 	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
436 	ip6_netmask(&e.ip[0], e.cidr[0]);
437 	ip6_netmask(&e.ip[1], e.cidr[1]);
438 
439 	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
440 }
441 
442 static int
443 hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
444 		      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
445 {
446 	const struct hash_netportnet *h = set->data;
447 	ipset_adtfn adtfn = set->variant->adt[adt];
448 	struct hash_netportnet6_elem e = { .cidr = { HOST_MASK, HOST_MASK, }, };
449 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
450 	u32 port, port_to;
451 	bool with_ports = false;
452 	int ret;
453 
454 	if (tb[IPSET_ATTR_LINENO])
455 		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
456 
457 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
458 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
459 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
460 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
461 		return -IPSET_ERR_PROTOCOL;
462 	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
463 		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
464 
465 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
466 	if (ret)
467 		return ret;
468 
469 	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
470 	if (ret)
471 		return ret;
472 
473 	ret = ip_set_get_extensions(set, tb, &ext);
474 	if (ret)
475 		return ret;
476 
477 	if (tb[IPSET_ATTR_CIDR]) {
478 		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
479 		if (!e.cidr[0] || e.cidr[0] > HOST_MASK)
480 			return -IPSET_ERR_INVALID_CIDR;
481 	}
482 
483 	if (tb[IPSET_ATTR_CIDR2]) {
484 		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
485 		if (!e.cidr[1] || e.cidr[1] > HOST_MASK)
486 			return -IPSET_ERR_INVALID_CIDR;
487 	}
488 
489 	ip6_netmask(&e.ip[0], e.cidr[0]);
490 	ip6_netmask(&e.ip[1], e.cidr[1]);
491 
492 	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
493 
494 	if (tb[IPSET_ATTR_PROTO]) {
495 		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
496 		with_ports = ip_set_proto_with_ports(e.proto);
497 
498 		if (e.proto == 0)
499 			return -IPSET_ERR_INVALID_PROTO;
500 	} else {
501 		return -IPSET_ERR_MISSING_PROTO;
502 	}
503 
504 	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
505 		e.port = 0;
506 
507 	if (tb[IPSET_ATTR_CADT_FLAGS]) {
508 		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
509 
510 		if (cadt_flags & IPSET_FLAG_NOMATCH)
511 			flags |= (IPSET_FLAG_NOMATCH << 16);
512 	}
513 
514 	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
515 		ret = adtfn(set, &e, &ext, &ext, flags);
516 		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
517 		       ip_set_eexist(ret, flags) ? 0 : ret;
518 	}
519 
520 	port = ntohs(e.port);
521 	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
522 	if (port > port_to)
523 		swap(port, port_to);
524 
525 	if (retried)
526 		port = ntohs(h->next.port);
527 	for (; port <= port_to; port++) {
528 		e.port = htons(port);
529 		ret = adtfn(set, &e, &ext, &ext, flags);
530 
531 		if (ret && !ip_set_eexist(ret, flags))
532 			return ret;
533 
534 		ret = 0;
535 	}
536 	return ret;
537 }
538 
539 static struct ip_set_type hash_netportnet_type __read_mostly = {
540 	.name		= "hash:net,port,net",
541 	.protocol	= IPSET_PROTOCOL,
542 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
543 			  IPSET_TYPE_NOMATCH,
544 	.dimension	= IPSET_DIM_THREE,
545 	.family		= NFPROTO_UNSPEC,
546 	.revision_min	= IPSET_TYPE_REV_MIN,
547 	.revision_max	= IPSET_TYPE_REV_MAX,
548 	.create		= hash_netportnet_create,
549 	.create_policy	= {
550 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
551 		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
552 		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
553 		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
554 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
555 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
556 	},
557 	.adt_policy	= {
558 		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
559 		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
560 		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
561 		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
562 		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
563 		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
564 		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
565 		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
566 		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
567 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
568 		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
569 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
570 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
571 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
572 		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING,
573 					    .len  = IPSET_MAX_COMMENT_SIZE },
574 		[IPSET_ATTR_SKBMARK]	= { .type = NLA_U64 },
575 		[IPSET_ATTR_SKBPRIO]	= { .type = NLA_U32 },
576 		[IPSET_ATTR_SKBQUEUE]	= { .type = NLA_U16 },
577 	},
578 	.me		= THIS_MODULE,
579 };
580 
581 static int __init
582 hash_netportnet_init(void)
583 {
584 	return ip_set_type_register(&hash_netportnet_type);
585 }
586 
587 static void __exit
588 hash_netportnet_fini(void)
589 {
590 	rcu_barrier();
591 	ip_set_type_unregister(&hash_netportnet_type);
592 }
593 
594 module_init(hash_netportnet_init);
595 module_exit(hash_netportnet_fini);
596