1 /* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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.
8 /* Kernel module implementing an IP set type: the hash:ip,port,net type */
10 #include <linux/jhash.h>
11 #include <linux/module.h>
13 #include <linux/skbuff.h>
14 #include <linux/errno.h>
15 #include <linux/random.h>
18 #include <net/netlink.h>
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>
28 #define REVISION_MIN 0
29 /* 1 SCTP and UDPLITE support added */
30 /* 2 Range as input support for IPv4 added */
31 #define REVISION_MAX 3 /* nomatch flag support added */
33 MODULE_LICENSE("GPL");
34 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
35 IP_SET_MODULE_DESC("hash:ip,port,net", REVISION_MIN
, REVISION_MAX
);
36 MODULE_ALIAS("ip_set_hash:ip,port,net");
38 /* Type specific function prefix */
39 #define TYPE hash_ipportnet
42 hash_ipportnet_same_set(const struct ip_set
*a
, const struct ip_set
*b
);
44 #define hash_ipportnet4_same_set hash_ipportnet_same_set
45 #define hash_ipportnet6_same_set hash_ipportnet_same_set
47 /* The type variant functions: IPv4 */
49 /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0
50 * However this way we have to store internally cidr - 1,
51 * dancing back and forth.
53 #define IP_SET_HASH_WITH_NETS_PACKED
55 /* Member elements without timeout */
56 struct hash_ipportnet4_elem
{
65 /* Member elements with timeout support */
66 struct hash_ipportnet4_telem
{
73 unsigned long timeout
;
77 hash_ipportnet4_data_equal(const struct hash_ipportnet4_elem
*ip1
,
78 const struct hash_ipportnet4_elem
*ip2
,
81 return ip1
->ip
== ip2
->ip
&&
82 ip1
->ip2
== ip2
->ip2
&&
83 ip1
->cidr
== ip2
->cidr
&&
84 ip1
->port
== ip2
->port
&&
85 ip1
->proto
== ip2
->proto
;
89 hash_ipportnet4_data_isnull(const struct hash_ipportnet4_elem
*elem
)
91 return elem
->proto
== 0;
95 hash_ipportnet4_data_copy(struct hash_ipportnet4_elem
*dst
,
96 const struct hash_ipportnet4_elem
*src
)
98 memcpy(dst
, src
, sizeof(*dst
));
102 hash_ipportnet4_data_flags(struct hash_ipportnet4_elem
*dst
, u32 flags
)
104 dst
->nomatch
= !!(flags
& IPSET_FLAG_NOMATCH
);
108 hash_ipportnet4_data_match(const struct hash_ipportnet4_elem
*elem
)
110 return elem
->nomatch
? -ENOTEMPTY
: 1;
114 hash_ipportnet4_data_netmask(struct hash_ipportnet4_elem
*elem
, u8 cidr
)
116 elem
->ip2
&= ip_set_netmask(cidr
);
117 elem
->cidr
= cidr
- 1;
121 hash_ipportnet4_data_zero_out(struct hash_ipportnet4_elem
*elem
)
127 hash_ipportnet4_data_list(struct sk_buff
*skb
,
128 const struct hash_ipportnet4_elem
*data
)
130 u32 flags
= data
->nomatch
? IPSET_FLAG_NOMATCH
: 0;
132 if (nla_put_ipaddr4(skb
, IPSET_ATTR_IP
, data
->ip
) ||
133 nla_put_ipaddr4(skb
, IPSET_ATTR_IP2
, data
->ip2
) ||
134 nla_put_net16(skb
, IPSET_ATTR_PORT
, data
->port
) ||
135 nla_put_u8(skb
, IPSET_ATTR_CIDR2
, data
->cidr
+ 1) ||
136 nla_put_u8(skb
, IPSET_ATTR_PROTO
, data
->proto
) ||
138 nla_put_net32(skb
, IPSET_ATTR_CADT_FLAGS
, htonl(flags
))))
139 goto nla_put_failure
;
147 hash_ipportnet4_data_tlist(struct sk_buff
*skb
,
148 const struct hash_ipportnet4_elem
*data
)
150 const struct hash_ipportnet4_telem
*tdata
=
151 (const struct hash_ipportnet4_telem
*)data
;
152 u32 flags
= data
->nomatch
? IPSET_FLAG_NOMATCH
: 0;
154 if (nla_put_ipaddr4(skb
, IPSET_ATTR_IP
, tdata
->ip
) ||
155 nla_put_ipaddr4(skb
, IPSET_ATTR_IP2
, tdata
->ip2
) ||
156 nla_put_net16(skb
, IPSET_ATTR_PORT
, tdata
->port
) ||
157 nla_put_u8(skb
, IPSET_ATTR_CIDR2
, data
->cidr
+ 1) ||
158 nla_put_u8(skb
, IPSET_ATTR_PROTO
, data
->proto
) ||
159 nla_put_net32(skb
, IPSET_ATTR_TIMEOUT
,
160 htonl(ip_set_timeout_get(tdata
->timeout
))) ||
162 nla_put_net32(skb
, IPSET_ATTR_CADT_FLAGS
, htonl(flags
))))
163 goto nla_put_failure
;
170 #define IP_SET_HASH_WITH_PROTO
171 #define IP_SET_HASH_WITH_NETS
175 #include <linux/netfilter/ipset/ip_set_ahash.h>
178 hash_ipportnet4_data_next(struct ip_set_hash
*h
,
179 const struct hash_ipportnet4_elem
*d
)
182 h
->next
.port
= d
->port
;
183 h
->next
.ip2
= d
->ip2
;
187 hash_ipportnet4_kadt(struct ip_set
*set
, const struct sk_buff
*skb
,
188 const struct xt_action_param
*par
,
189 enum ipset_adt adt
, const struct ip_set_adt_opt
*opt
)
191 const struct ip_set_hash
*h
= set
->data
;
192 ipset_adtfn adtfn
= set
->variant
->adt
[adt
];
193 struct hash_ipportnet4_elem data
= {
194 .cidr
= h
->nets
[0].cidr
? h
->nets
[0].cidr
- 1 : HOST_MASK
- 1
197 if (adt
== IPSET_TEST
)
198 data
.cidr
= HOST_MASK
- 1;
200 if (!ip_set_get_ip4_port(skb
, opt
->flags
& IPSET_DIM_TWO_SRC
,
201 &data
.port
, &data
.proto
))
204 ip4addrptr(skb
, opt
->flags
& IPSET_DIM_ONE_SRC
, &data
.ip
);
205 ip4addrptr(skb
, opt
->flags
& IPSET_DIM_THREE_SRC
, &data
.ip2
);
206 data
.ip2
&= ip_set_netmask(data
.cidr
+ 1);
208 return adtfn(set
, &data
, opt_timeout(opt
, h
), opt
->cmdflags
);
212 hash_ipportnet4_uadt(struct ip_set
*set
, struct nlattr
*tb
[],
213 enum ipset_adt adt
, u32
*lineno
, u32 flags
, bool retried
)
215 const struct ip_set_hash
*h
= set
->data
;
216 ipset_adtfn adtfn
= set
->variant
->adt
[adt
];
217 struct hash_ipportnet4_elem data
= { .cidr
= HOST_MASK
- 1 };
218 u32 ip
, ip_to
= 0, p
= 0, port
, port_to
;
219 u32 ip2_from
= 0, ip2_to
, ip2_last
, ip2
;
220 u32 timeout
= h
->timeout
;
221 bool with_ports
= false;
225 if (unlikely(!tb
[IPSET_ATTR_IP
] || !tb
[IPSET_ATTR_IP2
] ||
226 !ip_set_attr_netorder(tb
, IPSET_ATTR_PORT
) ||
227 !ip_set_optattr_netorder(tb
, IPSET_ATTR_PORT_TO
) ||
228 !ip_set_optattr_netorder(tb
, IPSET_ATTR_TIMEOUT
) ||
229 !ip_set_optattr_netorder(tb
, IPSET_ATTR_CADT_FLAGS
)))
230 return -IPSET_ERR_PROTOCOL
;
232 if (tb
[IPSET_ATTR_LINENO
])
233 *lineno
= nla_get_u32(tb
[IPSET_ATTR_LINENO
]);
235 ret
= ip_set_get_hostipaddr4(tb
[IPSET_ATTR_IP
], &ip
);
239 ret
= ip_set_get_hostipaddr4(tb
[IPSET_ATTR_IP2
], &ip2_from
);
243 if (tb
[IPSET_ATTR_CIDR2
]) {
244 cidr
= nla_get_u8(tb
[IPSET_ATTR_CIDR2
]);
245 if (!cidr
|| cidr
> HOST_MASK
)
246 return -IPSET_ERR_INVALID_CIDR
;
247 data
.cidr
= cidr
- 1;
250 if (tb
[IPSET_ATTR_PORT
])
251 data
.port
= nla_get_be16(tb
[IPSET_ATTR_PORT
]);
253 return -IPSET_ERR_PROTOCOL
;
255 if (tb
[IPSET_ATTR_PROTO
]) {
256 data
.proto
= nla_get_u8(tb
[IPSET_ATTR_PROTO
]);
257 with_ports
= ip_set_proto_with_ports(data
.proto
);
260 return -IPSET_ERR_INVALID_PROTO
;
262 return -IPSET_ERR_MISSING_PROTO
;
264 if (!(with_ports
|| data
.proto
== IPPROTO_ICMP
))
267 if (tb
[IPSET_ATTR_TIMEOUT
]) {
268 if (!with_timeout(h
->timeout
))
269 return -IPSET_ERR_TIMEOUT
;
270 timeout
= ip_set_timeout_uget(tb
[IPSET_ATTR_TIMEOUT
]);
273 if (tb
[IPSET_ATTR_CADT_FLAGS
] && adt
== IPSET_ADD
) {
274 u32 cadt_flags
= ip_set_get_h32(tb
[IPSET_ATTR_CADT_FLAGS
]);
275 if (cadt_flags
& IPSET_FLAG_NOMATCH
)
276 flags
|= (cadt_flags
<< 16);
279 with_ports
= with_ports
&& tb
[IPSET_ATTR_PORT_TO
];
280 if (adt
== IPSET_TEST
||
281 !(tb
[IPSET_ATTR_CIDR
] || tb
[IPSET_ATTR_IP_TO
] || with_ports
||
282 tb
[IPSET_ATTR_IP2_TO
])) {
284 data
.ip2
= htonl(ip2_from
& ip_set_hostmask(data
.cidr
+ 1));
285 ret
= adtfn(set
, &data
, timeout
, flags
);
286 return ip_set_eexist(ret
, flags
) ? 0 : ret
;
289 if (tb
[IPSET_ATTR_IP_TO
]) {
290 ret
= ip_set_get_hostipaddr4(tb
[IPSET_ATTR_IP_TO
], &ip_to
);
295 } else if (tb
[IPSET_ATTR_CIDR
]) {
296 u8 cidr
= nla_get_u8(tb
[IPSET_ATTR_CIDR
]);
298 if (!cidr
|| cidr
> 32)
299 return -IPSET_ERR_INVALID_CIDR
;
300 ip_set_mask_from_to(ip
, ip_to
, cidr
);
303 port_to
= port
= ntohs(data
.port
);
304 if (tb
[IPSET_ATTR_PORT_TO
]) {
305 port_to
= ip_set_get_h16(tb
[IPSET_ATTR_PORT_TO
]);
309 if (tb
[IPSET_ATTR_IP2_TO
]) {
310 ret
= ip_set_get_hostipaddr4(tb
[IPSET_ATTR_IP2_TO
], &ip2_to
);
313 if (ip2_from
> ip2_to
)
314 swap(ip2_from
, ip2_to
);
315 if (ip2_from
+ UINT_MAX
== ip2_to
)
316 return -IPSET_ERR_HASH_RANGE
;
318 ip_set_mask_from_to(ip2_from
, ip2_to
, data
.cidr
+ 1);
322 ip
= ntohl(h
->next
.ip
);
323 for (; !before(ip_to
, ip
); ip
++) {
325 p
= retried
&& ip
== ntohl(h
->next
.ip
) ? ntohs(h
->next
.port
)
327 for (; p
<= port_to
; p
++) {
328 data
.port
= htons(p
);
330 && ip
== ntohl(h
->next
.ip
)
331 && p
== ntohs(h
->next
.port
)
332 ? ntohl(h
->next
.ip2
) : ip2_from
;
333 while (!after(ip2
, ip2_to
)) {
334 data
.ip2
= htonl(ip2
);
335 ip2_last
= ip_set_range_to_cidr(ip2
, ip2_to
,
337 data
.cidr
= cidr
- 1;
338 ret
= adtfn(set
, &data
, timeout
, flags
);
340 if (ret
&& !ip_set_eexist(ret
, flags
))
352 hash_ipportnet_same_set(const struct ip_set
*a
, const struct ip_set
*b
)
354 const struct ip_set_hash
*x
= a
->data
;
355 const struct ip_set_hash
*y
= b
->data
;
357 /* Resizing changes htable_bits, so we ignore it */
358 return x
->maxelem
== y
->maxelem
&&
359 x
->timeout
== y
->timeout
;
362 /* The type variant functions: IPv6 */
364 struct hash_ipportnet6_elem
{
365 union nf_inet_addr ip
;
366 union nf_inet_addr ip2
;
373 struct hash_ipportnet6_telem
{
374 union nf_inet_addr ip
;
375 union nf_inet_addr ip2
;
380 unsigned long timeout
;
384 hash_ipportnet6_data_equal(const struct hash_ipportnet6_elem
*ip1
,
385 const struct hash_ipportnet6_elem
*ip2
,
388 return ipv6_addr_cmp(&ip1
->ip
.in6
, &ip2
->ip
.in6
) == 0 &&
389 ipv6_addr_cmp(&ip1
->ip2
.in6
, &ip2
->ip2
.in6
) == 0 &&
390 ip1
->cidr
== ip2
->cidr
&&
391 ip1
->port
== ip2
->port
&&
392 ip1
->proto
== ip2
->proto
;
396 hash_ipportnet6_data_isnull(const struct hash_ipportnet6_elem
*elem
)
398 return elem
->proto
== 0;
402 hash_ipportnet6_data_copy(struct hash_ipportnet6_elem
*dst
,
403 const struct hash_ipportnet6_elem
*src
)
405 memcpy(dst
, src
, sizeof(*dst
));
409 hash_ipportnet6_data_flags(struct hash_ipportnet6_elem
*dst
, u32 flags
)
411 dst
->nomatch
= !!(flags
& IPSET_FLAG_NOMATCH
);
415 hash_ipportnet6_data_match(const struct hash_ipportnet6_elem
*elem
)
417 return elem
->nomatch
? -ENOTEMPTY
: 1;
421 hash_ipportnet6_data_zero_out(struct hash_ipportnet6_elem
*elem
)
427 ip6_netmask(union nf_inet_addr
*ip
, u8 prefix
)
429 ip
->ip6
[0] &= ip_set_netmask6(prefix
)[0];
430 ip
->ip6
[1] &= ip_set_netmask6(prefix
)[1];
431 ip
->ip6
[2] &= ip_set_netmask6(prefix
)[2];
432 ip
->ip6
[3] &= ip_set_netmask6(prefix
)[3];
436 hash_ipportnet6_data_netmask(struct hash_ipportnet6_elem
*elem
, u8 cidr
)
438 ip6_netmask(&elem
->ip2
, cidr
);
439 elem
->cidr
= cidr
- 1;
443 hash_ipportnet6_data_list(struct sk_buff
*skb
,
444 const struct hash_ipportnet6_elem
*data
)
446 u32 flags
= data
->nomatch
? IPSET_FLAG_NOMATCH
: 0;
448 if (nla_put_ipaddr6(skb
, IPSET_ATTR_IP
, &data
->ip
.in6
) ||
449 nla_put_ipaddr6(skb
, IPSET_ATTR_IP2
, &data
->ip2
.in6
) ||
450 nla_put_net16(skb
, IPSET_ATTR_PORT
, data
->port
) ||
451 nla_put_u8(skb
, IPSET_ATTR_CIDR2
, data
->cidr
+ 1) ||
452 nla_put_u8(skb
, IPSET_ATTR_PROTO
, data
->proto
) ||
454 nla_put_net32(skb
, IPSET_ATTR_CADT_FLAGS
, htonl(flags
))))
455 goto nla_put_failure
;
463 hash_ipportnet6_data_tlist(struct sk_buff
*skb
,
464 const struct hash_ipportnet6_elem
*data
)
466 const struct hash_ipportnet6_telem
*e
=
467 (const struct hash_ipportnet6_telem
*)data
;
468 u32 flags
= data
->nomatch
? IPSET_FLAG_NOMATCH
: 0;
470 if (nla_put_ipaddr6(skb
, IPSET_ATTR_IP
, &e
->ip
.in6
) ||
471 nla_put_ipaddr6(skb
, IPSET_ATTR_IP2
, &data
->ip2
.in6
) ||
472 nla_put_net16(skb
, IPSET_ATTR_PORT
, data
->port
) ||
473 nla_put_u8(skb
, IPSET_ATTR_CIDR2
, data
->cidr
+ 1) ||
474 nla_put_u8(skb
, IPSET_ATTR_PROTO
, data
->proto
) ||
475 nla_put_net32(skb
, IPSET_ATTR_TIMEOUT
,
476 htonl(ip_set_timeout_get(e
->timeout
))) ||
478 nla_put_net32(skb
, IPSET_ATTR_CADT_FLAGS
, htonl(flags
))))
479 goto nla_put_failure
;
490 #define HOST_MASK 128
491 #include <linux/netfilter/ipset/ip_set_ahash.h>
494 hash_ipportnet6_data_next(struct ip_set_hash
*h
,
495 const struct hash_ipportnet6_elem
*d
)
497 h
->next
.port
= d
->port
;
501 hash_ipportnet6_kadt(struct ip_set
*set
, const struct sk_buff
*skb
,
502 const struct xt_action_param
*par
,
503 enum ipset_adt adt
, const struct ip_set_adt_opt
*opt
)
505 const struct ip_set_hash
*h
= set
->data
;
506 ipset_adtfn adtfn
= set
->variant
->adt
[adt
];
507 struct hash_ipportnet6_elem data
= {
508 .cidr
= h
->nets
[0].cidr
? h
->nets
[0].cidr
- 1 : HOST_MASK
- 1
511 if (adt
== IPSET_TEST
)
512 data
.cidr
= HOST_MASK
- 1;
514 if (!ip_set_get_ip6_port(skb
, opt
->flags
& IPSET_DIM_TWO_SRC
,
515 &data
.port
, &data
.proto
))
518 ip6addrptr(skb
, opt
->flags
& IPSET_DIM_ONE_SRC
, &data
.ip
.in6
);
519 ip6addrptr(skb
, opt
->flags
& IPSET_DIM_THREE_SRC
, &data
.ip2
.in6
);
520 ip6_netmask(&data
.ip2
, data
.cidr
+ 1);
522 return adtfn(set
, &data
, opt_timeout(opt
, h
), opt
->cmdflags
);
526 hash_ipportnet6_uadt(struct ip_set
*set
, struct nlattr
*tb
[],
527 enum ipset_adt adt
, u32
*lineno
, u32 flags
, bool retried
)
529 const struct ip_set_hash
*h
= set
->data
;
530 ipset_adtfn adtfn
= set
->variant
->adt
[adt
];
531 struct hash_ipportnet6_elem data
= { .cidr
= HOST_MASK
- 1 };
533 u32 timeout
= h
->timeout
;
534 bool with_ports
= false;
538 if (unlikely(!tb
[IPSET_ATTR_IP
] || !tb
[IPSET_ATTR_IP2
] ||
539 !ip_set_attr_netorder(tb
, IPSET_ATTR_PORT
) ||
540 !ip_set_optattr_netorder(tb
, IPSET_ATTR_PORT_TO
) ||
541 !ip_set_optattr_netorder(tb
, IPSET_ATTR_TIMEOUT
) ||
542 !ip_set_optattr_netorder(tb
, IPSET_ATTR_CADT_FLAGS
) ||
543 tb
[IPSET_ATTR_IP_TO
] ||
544 tb
[IPSET_ATTR_CIDR
]))
545 return -IPSET_ERR_PROTOCOL
;
546 if (unlikely(tb
[IPSET_ATTR_IP_TO
]))
547 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED
;
549 if (tb
[IPSET_ATTR_LINENO
])
550 *lineno
= nla_get_u32(tb
[IPSET_ATTR_LINENO
]);
552 ret
= ip_set_get_ipaddr6(tb
[IPSET_ATTR_IP
], &data
.ip
);
556 ret
= ip_set_get_ipaddr6(tb
[IPSET_ATTR_IP2
], &data
.ip2
);
560 if (tb
[IPSET_ATTR_CIDR2
]) {
561 cidr
= nla_get_u8(tb
[IPSET_ATTR_CIDR2
]);
562 if (!cidr
|| cidr
> HOST_MASK
)
563 return -IPSET_ERR_INVALID_CIDR
;
564 data
.cidr
= cidr
- 1;
567 ip6_netmask(&data
.ip2
, data
.cidr
+ 1);
569 if (tb
[IPSET_ATTR_PORT
])
570 data
.port
= nla_get_be16(tb
[IPSET_ATTR_PORT
]);
572 return -IPSET_ERR_PROTOCOL
;
574 if (tb
[IPSET_ATTR_PROTO
]) {
575 data
.proto
= nla_get_u8(tb
[IPSET_ATTR_PROTO
]);
576 with_ports
= ip_set_proto_with_ports(data
.proto
);
579 return -IPSET_ERR_INVALID_PROTO
;
581 return -IPSET_ERR_MISSING_PROTO
;
583 if (!(with_ports
|| data
.proto
== IPPROTO_ICMPV6
))
586 if (tb
[IPSET_ATTR_TIMEOUT
]) {
587 if (!with_timeout(h
->timeout
))
588 return -IPSET_ERR_TIMEOUT
;
589 timeout
= ip_set_timeout_uget(tb
[IPSET_ATTR_TIMEOUT
]);
592 if (tb
[IPSET_ATTR_CADT_FLAGS
] && adt
== IPSET_ADD
) {
593 u32 cadt_flags
= ip_set_get_h32(tb
[IPSET_ATTR_CADT_FLAGS
]);
594 if (cadt_flags
& IPSET_FLAG_NOMATCH
)
595 flags
|= (cadt_flags
<< 16);
598 if (adt
== IPSET_TEST
|| !with_ports
|| !tb
[IPSET_ATTR_PORT_TO
]) {
599 ret
= adtfn(set
, &data
, timeout
, flags
);
600 return ip_set_eexist(ret
, flags
) ? 0 : ret
;
603 port
= ntohs(data
.port
);
604 port_to
= ip_set_get_h16(tb
[IPSET_ATTR_PORT_TO
]);
609 port
= ntohs(h
->next
.port
);
610 for (; port
<= port_to
; port
++) {
611 data
.port
= htons(port
);
612 ret
= adtfn(set
, &data
, timeout
, flags
);
614 if (ret
&& !ip_set_eexist(ret
, flags
))
622 /* Create hash:ip type of sets */
625 hash_ipportnet_create(struct ip_set
*set
, struct nlattr
*tb
[], u32 flags
)
627 struct ip_set_hash
*h
;
628 u32 hashsize
= IPSET_DEFAULT_HASHSIZE
, maxelem
= IPSET_DEFAULT_MAXELEM
;
632 if (!(set
->family
== NFPROTO_IPV4
|| set
->family
== NFPROTO_IPV6
))
633 return -IPSET_ERR_INVALID_FAMILY
;
635 if (unlikely(!ip_set_optattr_netorder(tb
, IPSET_ATTR_HASHSIZE
) ||
636 !ip_set_optattr_netorder(tb
, IPSET_ATTR_MAXELEM
) ||
637 !ip_set_optattr_netorder(tb
, IPSET_ATTR_TIMEOUT
)))
638 return -IPSET_ERR_PROTOCOL
;
640 if (tb
[IPSET_ATTR_HASHSIZE
]) {
641 hashsize
= ip_set_get_h32(tb
[IPSET_ATTR_HASHSIZE
]);
642 if (hashsize
< IPSET_MIMINAL_HASHSIZE
)
643 hashsize
= IPSET_MIMINAL_HASHSIZE
;
646 if (tb
[IPSET_ATTR_MAXELEM
])
647 maxelem
= ip_set_get_h32(tb
[IPSET_ATTR_MAXELEM
]);
649 h
= kzalloc(sizeof(*h
)
650 + sizeof(struct ip_set_hash_nets
)
651 * (set
->family
== NFPROTO_IPV4
? 32 : 128), GFP_KERNEL
);
655 h
->maxelem
= maxelem
;
656 get_random_bytes(&h
->initval
, sizeof(h
->initval
));
657 h
->timeout
= IPSET_NO_TIMEOUT
;
659 hbits
= htable_bits(hashsize
);
660 hsize
= htable_size(hbits
);
665 h
->table
= ip_set_alloc(hsize
);
670 h
->table
->htable_bits
= hbits
;
674 if (tb
[IPSET_ATTR_TIMEOUT
]) {
675 h
->timeout
= ip_set_timeout_uget(tb
[IPSET_ATTR_TIMEOUT
]);
677 set
->variant
= set
->family
== NFPROTO_IPV4
678 ? &hash_ipportnet4_tvariant
679 : &hash_ipportnet6_tvariant
;
681 if (set
->family
== NFPROTO_IPV4
)
682 hash_ipportnet4_gc_init(set
);
684 hash_ipportnet6_gc_init(set
);
686 set
->variant
= set
->family
== NFPROTO_IPV4
687 ? &hash_ipportnet4_variant
: &hash_ipportnet6_variant
;
690 pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
691 set
->name
, jhash_size(h
->table
->htable_bits
),
692 h
->table
->htable_bits
, h
->maxelem
, set
->data
, h
->table
);
697 static struct ip_set_type hash_ipportnet_type __read_mostly
= {
698 .name
= "hash:ip,port,net",
699 .protocol
= IPSET_PROTOCOL
,
700 .features
= IPSET_TYPE_IP
| IPSET_TYPE_PORT
| IPSET_TYPE_IP2
|
702 .dimension
= IPSET_DIM_THREE
,
703 .family
= NFPROTO_UNSPEC
,
704 .revision_min
= REVISION_MIN
,
705 .revision_max
= REVISION_MAX
,
706 .create
= hash_ipportnet_create
,
708 [IPSET_ATTR_HASHSIZE
] = { .type
= NLA_U32
},
709 [IPSET_ATTR_MAXELEM
] = { .type
= NLA_U32
},
710 [IPSET_ATTR_PROBES
] = { .type
= NLA_U8
},
711 [IPSET_ATTR_RESIZE
] = { .type
= NLA_U8
},
712 [IPSET_ATTR_TIMEOUT
] = { .type
= NLA_U32
},
715 [IPSET_ATTR_IP
] = { .type
= NLA_NESTED
},
716 [IPSET_ATTR_IP_TO
] = { .type
= NLA_NESTED
},
717 [IPSET_ATTR_IP2
] = { .type
= NLA_NESTED
},
718 [IPSET_ATTR_IP2_TO
] = { .type
= NLA_NESTED
},
719 [IPSET_ATTR_PORT
] = { .type
= NLA_U16
},
720 [IPSET_ATTR_PORT_TO
] = { .type
= NLA_U16
},
721 [IPSET_ATTR_CIDR
] = { .type
= NLA_U8
},
722 [IPSET_ATTR_CIDR2
] = { .type
= NLA_U8
},
723 [IPSET_ATTR_PROTO
] = { .type
= NLA_U8
},
724 [IPSET_ATTR_CADT_FLAGS
] = { .type
= NLA_U32
},
725 [IPSET_ATTR_TIMEOUT
] = { .type
= NLA_U32
},
726 [IPSET_ATTR_LINENO
] = { .type
= NLA_U32
},
732 hash_ipportnet_init(void)
734 return ip_set_type_register(&hash_ipportnet_type
);
738 hash_ipportnet_fini(void)
740 ip_set_type_unregister(&hash_ipportnet_type
);
743 module_init(hash_ipportnet_init
);
744 module_exit(hash_ipportnet_fini
);