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Linux/net/netfilter/ipset/ip_set_hash_netportnet.c

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  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 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] || 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] || 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] || 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] || 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 

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