netfilter: ipset: add xt_action_param to the variant level kadt functions, ipset...
[linux-2.6.git] / net / netfilter / ipset / ip_set_hash_ipportnet.c
1 /* Copyright (C) 2003-2011 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_timeout.h>
25 #include <linux/netfilter/ipset/ip_set_getport.h>
26 #include <linux/netfilter/ipset/ip_set_hash.h>
27
28 MODULE_LICENSE("GPL");
29 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
30 MODULE_DESCRIPTION("hash:ip,port,net type of IP sets");
31 MODULE_ALIAS("ip_set_hash:ip,port,net");
32
33 /* Type specific function prefix */
34 #define TYPE            hash_ipportnet
35
36 static bool
37 hash_ipportnet_same_set(const struct ip_set *a, const struct ip_set *b);
38
39 #define hash_ipportnet4_same_set        hash_ipportnet_same_set
40 #define hash_ipportnet6_same_set        hash_ipportnet_same_set
41
42 /* The type variant functions: IPv4 */
43
44 /* Member elements without timeout */
45 struct hash_ipportnet4_elem {
46         __be32 ip;
47         __be32 ip2;
48         __be16 port;
49         u8 cidr;
50         u8 proto;
51 };
52
53 /* Member elements with timeout support */
54 struct hash_ipportnet4_telem {
55         __be32 ip;
56         __be32 ip2;
57         __be16 port;
58         u8 cidr;
59         u8 proto;
60         unsigned long timeout;
61 };
62
63 static inline bool
64 hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem *ip1,
65                            const struct hash_ipportnet4_elem *ip2)
66 {
67         return ip1->ip == ip2->ip &&
68                ip1->ip2 == ip2->ip2 &&
69                ip1->cidr == ip2->cidr &&
70                ip1->port == ip2->port &&
71                ip1->proto == ip2->proto;
72 }
73
74 static inline bool
75 hash_ipportnet4_data_isnull(const struct hash_ipportnet4_elem *elem)
76 {
77         return elem->proto == 0;
78 }
79
80 static inline void
81 hash_ipportnet4_data_copy(struct hash_ipportnet4_elem *dst,
82                           const struct hash_ipportnet4_elem *src)
83 {
84         memcpy(dst, src, sizeof(*dst));
85 }
86
87 static inline void
88 hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem *elem, u8 cidr)
89 {
90         elem->ip2 &= ip_set_netmask(cidr);
91         elem->cidr = cidr;
92 }
93
94 static inline void
95 hash_ipportnet4_data_zero_out(struct hash_ipportnet4_elem *elem)
96 {
97         elem->proto = 0;
98 }
99
100 static bool
101 hash_ipportnet4_data_list(struct sk_buff *skb,
102                           const struct hash_ipportnet4_elem *data)
103 {
104         NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, data->ip);
105         NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP2, data->ip2);
106         NLA_PUT_NET16(skb, IPSET_ATTR_PORT, data->port);
107         NLA_PUT_U8(skb, IPSET_ATTR_CIDR2, data->cidr);
108         NLA_PUT_U8(skb, IPSET_ATTR_PROTO, data->proto);
109         return 0;
110
111 nla_put_failure:
112         return 1;
113 }
114
115 static bool
116 hash_ipportnet4_data_tlist(struct sk_buff *skb,
117                            const struct hash_ipportnet4_elem *data)
118 {
119         const struct hash_ipportnet4_telem *tdata =
120                 (const struct hash_ipportnet4_telem *)data;
121
122         NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, tdata->ip);
123         NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP2, tdata->ip2);
124         NLA_PUT_NET16(skb, IPSET_ATTR_PORT, tdata->port);
125         NLA_PUT_U8(skb, IPSET_ATTR_CIDR2, data->cidr);
126         NLA_PUT_U8(skb, IPSET_ATTR_PROTO, data->proto);
127         NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT,
128                       htonl(ip_set_timeout_get(tdata->timeout)));
129
130         return 0;
131
132 nla_put_failure:
133         return 1;
134 }
135
136 #define IP_SET_HASH_WITH_PROTO
137 #define IP_SET_HASH_WITH_NETS
138
139 #define PF              4
140 #define HOST_MASK       32
141 #include <linux/netfilter/ipset/ip_set_ahash.h>
142
143 static inline void
144 hash_ipportnet4_data_next(struct ip_set_hash *h,
145                           const struct hash_ipportnet4_elem *d)
146 {
147         h->next.ip = ntohl(d->ip);
148         h->next.port = ntohs(d->port);
149         h->next.ip2 = ntohl(d->ip2);
150 }
151
152 static int
153 hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
154                      const struct xt_action_param *par,
155                      enum ipset_adt adt, const struct ip_set_adt_opt *opt)
156 {
157         const struct ip_set_hash *h = set->data;
158         ipset_adtfn adtfn = set->variant->adt[adt];
159         struct hash_ipportnet4_elem data =
160                 { .cidr = h->nets[0].cidr || HOST_MASK };
161
162         if (data.cidr == 0)
163                 return -EINVAL;
164         if (adt == IPSET_TEST)
165                 data.cidr = HOST_MASK;
166
167         if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
168                                  &data.port, &data.proto))
169                 return -EINVAL;
170
171         ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip);
172         ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2);
173         data.ip2 &= ip_set_netmask(data.cidr);
174
175         return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
176 }
177
178 static int
179 hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
180                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
181 {
182         const struct ip_set_hash *h = set->data;
183         ipset_adtfn adtfn = set->variant->adt[adt];
184         struct hash_ipportnet4_elem data = { .cidr = HOST_MASK };
185         u32 ip, ip_to, p = 0, port, port_to;
186         u32 ip2_from = 0, ip2_to, ip2_last, ip2;
187         u32 timeout = h->timeout;
188         bool with_ports = false;
189         int ret;
190
191         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
192                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
193                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
194                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
195                 return -IPSET_ERR_PROTOCOL;
196
197         if (tb[IPSET_ATTR_LINENO])
198                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
199
200         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
201         if (ret)
202                 return ret;
203
204         ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
205         if (ret)
206                 return ret;
207
208         if (tb[IPSET_ATTR_CIDR2]) {
209                 data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
210                 if (!data.cidr)
211                         return -IPSET_ERR_INVALID_CIDR;
212         }
213
214         if (tb[IPSET_ATTR_PORT])
215                 data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
216         else
217                 return -IPSET_ERR_PROTOCOL;
218
219         if (tb[IPSET_ATTR_PROTO]) {
220                 data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
221                 with_ports = ip_set_proto_with_ports(data.proto);
222
223                 if (data.proto == 0)
224                         return -IPSET_ERR_INVALID_PROTO;
225         } else
226                 return -IPSET_ERR_MISSING_PROTO;
227
228         if (!(with_ports || data.proto == IPPROTO_ICMP))
229                 data.port = 0;
230
231         if (tb[IPSET_ATTR_TIMEOUT]) {
232                 if (!with_timeout(h->timeout))
233                         return -IPSET_ERR_TIMEOUT;
234                 timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
235         }
236
237         with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
238         if (adt == IPSET_TEST ||
239             !(tb[IPSET_ATTR_CIDR] || tb[IPSET_ATTR_IP_TO] || with_ports ||
240               tb[IPSET_ATTR_IP2_TO])) {
241                 data.ip = htonl(ip);
242                 data.ip2 = htonl(ip2_from & ip_set_hostmask(data.cidr));
243                 ret = adtfn(set, &data, timeout, flags);
244                 return ip_set_eexist(ret, flags) ? 0 : ret;
245         }
246
247         if (tb[IPSET_ATTR_IP_TO]) {
248                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
249                 if (ret)
250                         return ret;
251                 if (ip > ip_to)
252                         swap(ip, ip_to);
253         } else if (tb[IPSET_ATTR_CIDR]) {
254                 u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
255
256                 if (cidr > 32)
257                         return -IPSET_ERR_INVALID_CIDR;
258                 ip_set_mask_from_to(ip, ip_to, cidr);
259         }
260
261         port_to = port = ntohs(data.port);
262         if (tb[IPSET_ATTR_PORT_TO]) {
263                 port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
264                 if (port > port_to)
265                         swap(port, port_to);
266         }
267         if (tb[IPSET_ATTR_IP2_TO]) {
268                 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
269                 if (ret)
270                         return ret;
271                 if (ip2_from > ip2_to)
272                         swap(ip2_from, ip2_to);
273                 if (ip2_from + UINT_MAX == ip2_to)
274                         return -IPSET_ERR_HASH_RANGE;
275         } else {
276                 ip_set_mask_from_to(ip2_from, ip2_to, data.cidr);
277         }
278
279         if (retried)
280                 ip = h->next.ip;
281         for (; !before(ip_to, ip); ip++) {
282                 data.ip = htonl(ip);
283                 p = retried && ip == h->next.ip ? h->next.port : port;
284                 for (; p <= port_to; p++) {
285                         data.port = htons(p);
286                         ip2 = retried && ip == h->next.ip && p == h->next.port
287                                 ? h->next.ip2 : ip2_from;
288                         while (!after(ip2, ip2_to)) {
289                                 data.ip2 = htonl(ip2);
290                                 ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
291                                                                 &data.cidr);
292                                 ret = adtfn(set, &data, timeout, flags);
293
294                                 if (ret && !ip_set_eexist(ret, flags))
295                                         return ret;
296                                 else
297                                         ret = 0;
298                                 ip2 = ip2_last + 1;
299                         }
300                 }
301         }
302         return ret;
303 }
304
305 static bool
306 hash_ipportnet_same_set(const struct ip_set *a, const struct ip_set *b)
307 {
308         const struct ip_set_hash *x = a->data;
309         const struct ip_set_hash *y = b->data;
310
311         /* Resizing changes htable_bits, so we ignore it */
312         return x->maxelem == y->maxelem &&
313                x->timeout == y->timeout;
314 }
315
316 /* The type variant functions: IPv6 */
317
318 struct hash_ipportnet6_elem {
319         union nf_inet_addr ip;
320         union nf_inet_addr ip2;
321         __be16 port;
322         u8 cidr;
323         u8 proto;
324 };
325
326 struct hash_ipportnet6_telem {
327         union nf_inet_addr ip;
328         union nf_inet_addr ip2;
329         __be16 port;
330         u8 cidr;
331         u8 proto;
332         unsigned long timeout;
333 };
334
335 static inline bool
336 hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem *ip1,
337                            const struct hash_ipportnet6_elem *ip2)
338 {
339         return ipv6_addr_cmp(&ip1->ip.in6, &ip2->ip.in6) == 0 &&
340                ipv6_addr_cmp(&ip1->ip2.in6, &ip2->ip2.in6) == 0 &&
341                ip1->cidr == ip2->cidr &&
342                ip1->port == ip2->port &&
343                ip1->proto == ip2->proto;
344 }
345
346 static inline bool
347 hash_ipportnet6_data_isnull(const struct hash_ipportnet6_elem *elem)
348 {
349         return elem->proto == 0;
350 }
351
352 static inline void
353 hash_ipportnet6_data_copy(struct hash_ipportnet6_elem *dst,
354                           const struct hash_ipportnet6_elem *src)
355 {
356         memcpy(dst, src, sizeof(*dst));
357 }
358
359 static inline void
360 hash_ipportnet6_data_zero_out(struct hash_ipportnet6_elem *elem)
361 {
362         elem->proto = 0;
363 }
364
365 static inline void
366 ip6_netmask(union nf_inet_addr *ip, u8 prefix)
367 {
368         ip->ip6[0] &= ip_set_netmask6(prefix)[0];
369         ip->ip6[1] &= ip_set_netmask6(prefix)[1];
370         ip->ip6[2] &= ip_set_netmask6(prefix)[2];
371         ip->ip6[3] &= ip_set_netmask6(prefix)[3];
372 }
373
374 static inline void
375 hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem *elem, u8 cidr)
376 {
377         ip6_netmask(&elem->ip2, cidr);
378         elem->cidr = cidr;
379 }
380
381 static bool
382 hash_ipportnet6_data_list(struct sk_buff *skb,
383                           const struct hash_ipportnet6_elem *data)
384 {
385         NLA_PUT_IPADDR6(skb, IPSET_ATTR_IP, &data->ip);
386         NLA_PUT_IPADDR6(skb, IPSET_ATTR_IP2, &data->ip2);
387         NLA_PUT_NET16(skb, IPSET_ATTR_PORT, data->port);
388         NLA_PUT_U8(skb, IPSET_ATTR_CIDR2, data->cidr);
389         NLA_PUT_U8(skb, IPSET_ATTR_PROTO, data->proto);
390         return 0;
391
392 nla_put_failure:
393         return 1;
394 }
395
396 static bool
397 hash_ipportnet6_data_tlist(struct sk_buff *skb,
398                            const struct hash_ipportnet6_elem *data)
399 {
400         const struct hash_ipportnet6_telem *e =
401                 (const struct hash_ipportnet6_telem *)data;
402
403         NLA_PUT_IPADDR6(skb, IPSET_ATTR_IP, &e->ip);
404         NLA_PUT_IPADDR6(skb, IPSET_ATTR_IP2, &data->ip2);
405         NLA_PUT_NET16(skb, IPSET_ATTR_PORT, data->port);
406         NLA_PUT_U8(skb, IPSET_ATTR_CIDR2, data->cidr);
407         NLA_PUT_U8(skb, IPSET_ATTR_PROTO, data->proto);
408         NLA_PUT_NET32(skb, IPSET_ATTR_TIMEOUT,
409                       htonl(ip_set_timeout_get(e->timeout)));
410         return 0;
411
412 nla_put_failure:
413         return 1;
414 }
415
416 #undef PF
417 #undef HOST_MASK
418
419 #define PF              6
420 #define HOST_MASK       128
421 #include <linux/netfilter/ipset/ip_set_ahash.h>
422
423 static inline void
424 hash_ipportnet6_data_next(struct ip_set_hash *h,
425                           const struct hash_ipportnet6_elem *d)
426 {
427         h->next.port = ntohs(d->port);
428 }
429
430 static int
431 hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
432                      const struct xt_action_param *par,
433                      enum ipset_adt adt, const struct ip_set_adt_opt *opt)
434 {
435         const struct ip_set_hash *h = set->data;
436         ipset_adtfn adtfn = set->variant->adt[adt];
437         struct hash_ipportnet6_elem data =
438                 { .cidr = h->nets[0].cidr || HOST_MASK };
439
440         if (data.cidr == 0)
441                 return -EINVAL;
442         if (adt == IPSET_TEST)
443                 data.cidr = HOST_MASK;
444
445         if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
446                                  &data.port, &data.proto))
447                 return -EINVAL;
448
449         ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6);
450         ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &data.ip2.in6);
451         ip6_netmask(&data.ip2, data.cidr);
452
453         return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags);
454 }
455
456 static int
457 hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
458                      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
459 {
460         const struct ip_set_hash *h = set->data;
461         ipset_adtfn adtfn = set->variant->adt[adt];
462         struct hash_ipportnet6_elem data = { .cidr = HOST_MASK };
463         u32 port, port_to;
464         u32 timeout = h->timeout;
465         bool with_ports = false;
466         int ret;
467
468         if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
469                      !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
470                      !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
471                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
472                      tb[IPSET_ATTR_IP_TO] ||
473                      tb[IPSET_ATTR_CIDR]))
474                 return -IPSET_ERR_PROTOCOL;
475         if (unlikely(tb[IPSET_ATTR_IP_TO]))
476                 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
477
478         if (tb[IPSET_ATTR_LINENO])
479                 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
480
481         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip);
482         if (ret)
483                 return ret;
484
485         ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &data.ip2);
486         if (ret)
487                 return ret;
488
489         if (tb[IPSET_ATTR_CIDR2])
490                 data.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
491
492         if (!data.cidr)
493                 return -IPSET_ERR_INVALID_CIDR;
494
495         ip6_netmask(&data.ip2, data.cidr);
496
497         if (tb[IPSET_ATTR_PORT])
498                 data.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
499         else
500                 return -IPSET_ERR_PROTOCOL;
501
502         if (tb[IPSET_ATTR_PROTO]) {
503                 data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
504                 with_ports = ip_set_proto_with_ports(data.proto);
505
506                 if (data.proto == 0)
507                         return -IPSET_ERR_INVALID_PROTO;
508         } else
509                 return -IPSET_ERR_MISSING_PROTO;
510
511         if (!(with_ports || data.proto == IPPROTO_ICMPV6))
512                 data.port = 0;
513
514         if (tb[IPSET_ATTR_TIMEOUT]) {
515                 if (!with_timeout(h->timeout))
516                         return -IPSET_ERR_TIMEOUT;
517                 timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
518         }
519
520         if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
521                 ret = adtfn(set, &data, timeout, flags);
522                 return ip_set_eexist(ret, flags) ? 0 : ret;
523         }
524
525         port = ntohs(data.port);
526         port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
527         if (port > port_to)
528                 swap(port, port_to);
529
530         if (retried)
531                 port = h->next.port;
532         for (; port <= port_to; port++) {
533                 data.port = htons(port);
534                 ret = adtfn(set, &data, timeout, flags);
535
536                 if (ret && !ip_set_eexist(ret, flags))
537                         return ret;
538                 else
539                         ret = 0;
540         }
541         return ret;
542 }
543
544 /* Create hash:ip type of sets */
545
546 static int
547 hash_ipportnet_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
548 {
549         struct ip_set_hash *h;
550         u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
551         u8 hbits;
552
553         if (!(set->family == AF_INET || set->family == AF_INET6))
554                 return -IPSET_ERR_INVALID_FAMILY;
555
556         if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) ||
557                      !ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) ||
558                      !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
559                 return -IPSET_ERR_PROTOCOL;
560
561         if (tb[IPSET_ATTR_HASHSIZE]) {
562                 hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]);
563                 if (hashsize < IPSET_MIMINAL_HASHSIZE)
564                         hashsize = IPSET_MIMINAL_HASHSIZE;
565         }
566
567         if (tb[IPSET_ATTR_MAXELEM])
568                 maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]);
569
570         h = kzalloc(sizeof(*h)
571                     + sizeof(struct ip_set_hash_nets)
572                       * (set->family == AF_INET ? 32 : 128), GFP_KERNEL);
573         if (!h)
574                 return -ENOMEM;
575
576         h->maxelem = maxelem;
577         get_random_bytes(&h->initval, sizeof(h->initval));
578         h->timeout = IPSET_NO_TIMEOUT;
579
580         hbits = htable_bits(hashsize);
581         h->table = ip_set_alloc(
582                         sizeof(struct htable)
583                         + jhash_size(hbits) * sizeof(struct hbucket));
584         if (!h->table) {
585                 kfree(h);
586                 return -ENOMEM;
587         }
588         h->table->htable_bits = hbits;
589
590         set->data = h;
591
592         if (tb[IPSET_ATTR_TIMEOUT]) {
593                 h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
594
595                 set->variant = set->family == AF_INET
596                         ? &hash_ipportnet4_tvariant
597                         : &hash_ipportnet6_tvariant;
598
599                 if (set->family == AF_INET)
600                         hash_ipportnet4_gc_init(set);
601                 else
602                         hash_ipportnet6_gc_init(set);
603         } else {
604                 set->variant = set->family == AF_INET
605                         ? &hash_ipportnet4_variant : &hash_ipportnet6_variant;
606         }
607
608         pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
609                  set->name, jhash_size(h->table->htable_bits),
610                  h->table->htable_bits, h->maxelem, set->data, h->table);
611
612         return 0;
613 }
614
615 static struct ip_set_type hash_ipportnet_type __read_mostly = {
616         .name           = "hash:ip,port,net",
617         .protocol       = IPSET_PROTOCOL,
618         .features       = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2,
619         .dimension      = IPSET_DIM_THREE,
620         .family         = AF_UNSPEC,
621         .revision_min   = 0,
622         /*                1        SCTP and UDPLITE support added */
623         .revision_max   = 2,    /* Range as input support for IPv4 added */
624         .create         = hash_ipportnet_create,
625         .create_policy  = {
626                 [IPSET_ATTR_HASHSIZE]   = { .type = NLA_U32 },
627                 [IPSET_ATTR_MAXELEM]    = { .type = NLA_U32 },
628                 [IPSET_ATTR_PROBES]     = { .type = NLA_U8 },
629                 [IPSET_ATTR_RESIZE]     = { .type = NLA_U8  },
630                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
631         },
632         .adt_policy     = {
633                 [IPSET_ATTR_IP]         = { .type = NLA_NESTED },
634                 [IPSET_ATTR_IP_TO]      = { .type = NLA_NESTED },
635                 [IPSET_ATTR_IP2]        = { .type = NLA_NESTED },
636                 [IPSET_ATTR_IP2_TO]     = { .type = NLA_NESTED },
637                 [IPSET_ATTR_PORT]       = { .type = NLA_U16 },
638                 [IPSET_ATTR_PORT_TO]    = { .type = NLA_U16 },
639                 [IPSET_ATTR_CIDR]       = { .type = NLA_U8 },
640                 [IPSET_ATTR_CIDR2]      = { .type = NLA_U8 },
641                 [IPSET_ATTR_PROTO]      = { .type = NLA_U8 },
642                 [IPSET_ATTR_TIMEOUT]    = { .type = NLA_U32 },
643                 [IPSET_ATTR_LINENO]     = { .type = NLA_U32 },
644         },
645         .me             = THIS_MODULE,
646 };
647
648 static int __init
649 hash_ipportnet_init(void)
650 {
651         return ip_set_type_register(&hash_ipportnet_type);
652 }
653
654 static void __exit
655 hash_ipportnet_fini(void)
656 {
657         ip_set_type_unregister(&hash_ipportnet_type);
658 }
659
660 module_init(hash_ipportnet_init);
661 module_exit(hash_ipportnet_fini);