1 /* Copyright (C) 2011-2013 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:net,iface 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 <linux/rbtree.h>
17 #include <net/ip.h>
18 #include <net/ipv6.h>
19 #include <net/netlink.h>
20
21 #include <linux/netfilter.h>
22 #include <linux/netfilter_bridge.h>
23 #include <linux/netfilter/ipset/pfxlen.h>
24 #include <linux/netfilter/ipset/ip_set.h>
25 #include <linux/netfilter/ipset/ip_set_hash.h>
26
27 #define IPSET_TYPE_REV_MIN 0
28 /* 1 nomatch flag support added */
29 /* 2 /0 support added */
30 /* 3 Counters support added */
31 /* 4 Comments support added */
32 /* 5 Forceadd support added */
33 #define IPSET_TYPE_REV_MAX 6 /* skbinfo support added */
34
35 MODULE_LICENSE("GPL");
36 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
37 IP_SET_MODULE_DESC("hash:net,iface", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
38 MODULE_ALIAS("ip_set_hash:net,iface");
39
40 /* Interface name rbtree */
41
42 struct iface_node {
43 struct rb_node node;
44 char iface[IFNAMSIZ];
45 };
46
47 #define iface_data(n) (rb_entry(n, struct iface_node, node)->iface)
48
49 static void
rbtree_destroy(struct rb_root * root)50 rbtree_destroy(struct rb_root *root)
51 {
52 struct iface_node *node, *next;
53
54 rbtree_postorder_for_each_entry_safe(node, next, root, node)
55 kfree(node);
56
57 *root = RB_ROOT;
58 }
59
60 static int
iface_test(struct rb_root * root,const char ** iface)61 iface_test(struct rb_root *root, const char **iface)
62 {
63 struct rb_node *n = root->rb_node;
64
65 while (n) {
66 const char *d = iface_data(n);
67 int res = strcmp(*iface, d);
68
69 if (res < 0)
70 n = n->rb_left;
71 else if (res > 0)
72 n = n->rb_right;
73 else {
74 *iface = d;
75 return 1;
76 }
77 }
78 return 0;
79 }
80
81 static int
iface_add(struct rb_root * root,const char ** iface)82 iface_add(struct rb_root *root, const char **iface)
83 {
84 struct rb_node **n = &(root->rb_node), *p = NULL;
85 struct iface_node *d;
86
87 while (*n) {
88 char *ifname = iface_data(*n);
89 int res = strcmp(*iface, ifname);
90
91 p = *n;
92 if (res < 0)
93 n = &((*n)->rb_left);
94 else if (res > 0)
95 n = &((*n)->rb_right);
96 else {
97 *iface = ifname;
98 return 0;
99 }
100 }
101
102 d = kzalloc(sizeof(*d), GFP_ATOMIC);
103 if (!d)
104 return -ENOMEM;
105 strcpy(d->iface, *iface);
106
107 rb_link_node(&d->node, p, n);
108 rb_insert_color(&d->node, root);
109
110 *iface = d->iface;
111 return 0;
112 }
113
114 /* Type specific function prefix */
115 #define HTYPE hash_netiface
116 #define IP_SET_HASH_WITH_NETS
117 #define IP_SET_HASH_WITH_RBTREE
118 #define IP_SET_HASH_WITH_MULTI
119 #define IP_SET_HASH_WITH_NET0
120
121 #define STREQ(a, b) (strcmp(a, b) == 0)
122
123 /* IPv4 variant */
124
125 struct hash_netiface4_elem_hashed {
126 __be32 ip;
127 u8 physdev;
128 u8 cidr;
129 u8 nomatch;
130 u8 elem;
131 };
132
133 /* Member elements */
134 struct hash_netiface4_elem {
135 __be32 ip;
136 u8 physdev;
137 u8 cidr;
138 u8 nomatch;
139 u8 elem;
140 const char *iface;
141 };
142
143 /* Common functions */
144
145 static inline bool
hash_netiface4_data_equal(const struct hash_netiface4_elem * ip1,const struct hash_netiface4_elem * ip2,u32 * multi)146 hash_netiface4_data_equal(const struct hash_netiface4_elem *ip1,
147 const struct hash_netiface4_elem *ip2,
148 u32 *multi)
149 {
150 return ip1->ip == ip2->ip &&
151 ip1->cidr == ip2->cidr &&
152 (++*multi) &&
153 ip1->physdev == ip2->physdev &&
154 ip1->iface == ip2->iface;
155 }
156
157 static inline int
hash_netiface4_do_data_match(const struct hash_netiface4_elem * elem)158 hash_netiface4_do_data_match(const struct hash_netiface4_elem *elem)
159 {
160 return elem->nomatch ? -ENOTEMPTY : 1;
161 }
162
163 static inline void
hash_netiface4_data_set_flags(struct hash_netiface4_elem * elem,u32 flags)164 hash_netiface4_data_set_flags(struct hash_netiface4_elem *elem, u32 flags)
165 {
166 elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
167 }
168
169 static inline void
hash_netiface4_data_reset_flags(struct hash_netiface4_elem * elem,u8 * flags)170 hash_netiface4_data_reset_flags(struct hash_netiface4_elem *elem, u8 *flags)
171 {
172 swap(*flags, elem->nomatch);
173 }
174
175 static inline void
hash_netiface4_data_netmask(struct hash_netiface4_elem * elem,u8 cidr)176 hash_netiface4_data_netmask(struct hash_netiface4_elem *elem, u8 cidr)
177 {
178 elem->ip &= ip_set_netmask(cidr);
179 elem->cidr = cidr;
180 }
181
182 static bool
hash_netiface4_data_list(struct sk_buff * skb,const struct hash_netiface4_elem * data)183 hash_netiface4_data_list(struct sk_buff *skb,
184 const struct hash_netiface4_elem *data)
185 {
186 u32 flags = data->physdev ? IPSET_FLAG_PHYSDEV : 0;
187
188 if (data->nomatch)
189 flags |= IPSET_FLAG_NOMATCH;
190 if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) ||
191 nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
192 nla_put_string(skb, IPSET_ATTR_IFACE, data->iface) ||
193 (flags &&
194 nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
195 goto nla_put_failure;
196 return 0;
197
198 nla_put_failure:
199 return 1;
200 }
201
202 static inline void
hash_netiface4_data_next(struct hash_netiface4_elem * next,const struct hash_netiface4_elem * d)203 hash_netiface4_data_next(struct hash_netiface4_elem *next,
204 const struct hash_netiface4_elem *d)
205 {
206 next->ip = d->ip;
207 }
208
209 #define MTYPE hash_netiface4
210 #define PF 4
211 #define HOST_MASK 32
212 #define HKEY_DATALEN sizeof(struct hash_netiface4_elem_hashed)
213 #include "ip_set_hash_gen.h"
214
215 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
get_physindev_name(const struct sk_buff * skb)216 static const char *get_physindev_name(const struct sk_buff *skb)
217 {
218 struct net_device *dev = nf_bridge_get_physindev(skb);
219
220 return dev ? dev->name : NULL;
221 }
222
get_phyoutdev_name(const struct sk_buff * skb)223 static const char *get_phyoutdev_name(const struct sk_buff *skb)
224 {
225 struct net_device *dev = nf_bridge_get_physoutdev(skb);
226
227 return dev ? dev->name : NULL;
228 }
229 #endif
230
231 static int
hash_netiface4_kadt(struct ip_set * set,const struct sk_buff * skb,const struct xt_action_param * par,enum ipset_adt adt,struct ip_set_adt_opt * opt)232 hash_netiface4_kadt(struct ip_set *set, const struct sk_buff *skb,
233 const struct xt_action_param *par,
234 enum ipset_adt adt, struct ip_set_adt_opt *opt)
235 {
236 struct hash_netiface *h = set->data;
237 ipset_adtfn adtfn = set->variant->adt[adt];
238 struct hash_netiface4_elem e = {
239 .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
240 .elem = 1,
241 };
242 struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
243 int ret;
244
245 if (e.cidr == 0)
246 return -EINVAL;
247 if (adt == IPSET_TEST)
248 e.cidr = HOST_MASK;
249
250 ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip);
251 e.ip &= ip_set_netmask(e.cidr);
252
253 #define IFACE(dir) (par->dir ? par->dir->name : NULL)
254 #define SRCDIR (opt->flags & IPSET_DIM_TWO_SRC)
255
256 if (opt->cmdflags & IPSET_FLAG_PHYSDEV) {
257 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
258 e.iface = SRCDIR ? get_physindev_name(skb) :
259 get_phyoutdev_name(skb);
260
261 if (!e.iface)
262 return -EINVAL;
263 e.physdev = 1;
264 #else
265 e.iface = NULL;
266 #endif
267 } else
268 e.iface = SRCDIR ? IFACE(in) : IFACE(out);
269
270 if (!e.iface)
271 return -EINVAL;
272 ret = iface_test(&h->rbtree, &e.iface);
273 if (adt == IPSET_ADD) {
274 if (!ret) {
275 ret = iface_add(&h->rbtree, &e.iface);
276 if (ret)
277 return ret;
278 }
279 } else if (!ret)
280 return ret;
281
282 return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
283 }
284
285 static int
hash_netiface4_uadt(struct ip_set * set,struct nlattr * tb[],enum ipset_adt adt,u32 * lineno,u32 flags,bool retried)286 hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
287 enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
288 {
289 struct hash_netiface *h = set->data;
290 ipset_adtfn adtfn = set->variant->adt[adt];
291 struct hash_netiface4_elem e = { .cidr = HOST_MASK, .elem = 1 };
292 struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
293 u32 ip = 0, ip_to = 0, last;
294 char iface[IFNAMSIZ];
295 int ret;
296
297 if (unlikely(!tb[IPSET_ATTR_IP] ||
298 !tb[IPSET_ATTR_IFACE] ||
299 !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
300 !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
301 !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
302 !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
303 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
304 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
305 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
306 return -IPSET_ERR_PROTOCOL;
307
308 if (tb[IPSET_ATTR_LINENO])
309 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
310
311 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
312 ip_set_get_extensions(set, tb, &ext);
313 if (ret)
314 return ret;
315
316 if (tb[IPSET_ATTR_CIDR]) {
317 e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
318 if (e.cidr > HOST_MASK)
319 return -IPSET_ERR_INVALID_CIDR;
320 }
321
322 strcpy(iface, nla_data(tb[IPSET_ATTR_IFACE]));
323 e.iface = iface;
324 ret = iface_test(&h->rbtree, &e.iface);
325 if (adt == IPSET_ADD) {
326 if (!ret) {
327 ret = iface_add(&h->rbtree, &e.iface);
328 if (ret)
329 return ret;
330 }
331 } else if (!ret)
332 return ret;
333
334 if (tb[IPSET_ATTR_CADT_FLAGS]) {
335 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
336 if (cadt_flags & IPSET_FLAG_PHYSDEV)
337 e.physdev = 1;
338 if (cadt_flags & IPSET_FLAG_NOMATCH)
339 flags |= (IPSET_FLAG_NOMATCH << 16);
340 }
341 if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) {
342 e.ip = htonl(ip & ip_set_hostmask(e.cidr));
343 ret = adtfn(set, &e, &ext, &ext, flags);
344 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
345 ip_set_eexist(ret, flags) ? 0 : ret;
346 }
347
348 if (tb[IPSET_ATTR_IP_TO]) {
349 ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
350 if (ret)
351 return ret;
352 if (ip_to < ip)
353 swap(ip, ip_to);
354 if (ip + UINT_MAX == ip_to)
355 return -IPSET_ERR_HASH_RANGE;
356 } else
357 ip_set_mask_from_to(ip, ip_to, e.cidr);
358
359 if (retried)
360 ip = ntohl(h->next.ip);
361 while (!after(ip, ip_to)) {
362 e.ip = htonl(ip);
363 last = ip_set_range_to_cidr(ip, ip_to, &e.cidr);
364 ret = adtfn(set, &e, &ext, &ext, flags);
365
366 if (ret && !ip_set_eexist(ret, flags))
367 return ret;
368 else
369 ret = 0;
370 ip = last + 1;
371 }
372 return ret;
373 }
374
375 /* IPv6 variant */
376
377 struct hash_netiface6_elem_hashed {
378 union nf_inet_addr ip;
379 u8 physdev;
380 u8 cidr;
381 u8 nomatch;
382 u8 elem;
383 };
384
385 struct hash_netiface6_elem {
386 union nf_inet_addr ip;
387 u8 physdev;
388 u8 cidr;
389 u8 nomatch;
390 u8 elem;
391 const char *iface;
392 };
393
394 /* Common functions */
395
396 static inline bool
hash_netiface6_data_equal(const struct hash_netiface6_elem * ip1,const struct hash_netiface6_elem * ip2,u32 * multi)397 hash_netiface6_data_equal(const struct hash_netiface6_elem *ip1,
398 const struct hash_netiface6_elem *ip2,
399 u32 *multi)
400 {
401 return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) &&
402 ip1->cidr == ip2->cidr &&
403 (++*multi) &&
404 ip1->physdev == ip2->physdev &&
405 ip1->iface == ip2->iface;
406 }
407
408 static inline int
hash_netiface6_do_data_match(const struct hash_netiface6_elem * elem)409 hash_netiface6_do_data_match(const struct hash_netiface6_elem *elem)
410 {
411 return elem->nomatch ? -ENOTEMPTY : 1;
412 }
413
414 static inline void
hash_netiface6_data_set_flags(struct hash_netiface6_elem * elem,u32 flags)415 hash_netiface6_data_set_flags(struct hash_netiface6_elem *elem, u32 flags)
416 {
417 elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
418 }
419
420 static inline void
hash_netiface6_data_reset_flags(struct hash_netiface6_elem * elem,u8 * flags)421 hash_netiface6_data_reset_flags(struct hash_netiface6_elem *elem, u8 *flags)
422 {
423 swap(*flags, elem->nomatch);
424 }
425
426 static inline void
hash_netiface6_data_netmask(struct hash_netiface6_elem * elem,u8 cidr)427 hash_netiface6_data_netmask(struct hash_netiface6_elem *elem, u8 cidr)
428 {
429 ip6_netmask(&elem->ip, cidr);
430 elem->cidr = cidr;
431 }
432
433 static bool
hash_netiface6_data_list(struct sk_buff * skb,const struct hash_netiface6_elem * data)434 hash_netiface6_data_list(struct sk_buff *skb,
435 const struct hash_netiface6_elem *data)
436 {
437 u32 flags = data->physdev ? IPSET_FLAG_PHYSDEV : 0;
438
439 if (data->nomatch)
440 flags |= IPSET_FLAG_NOMATCH;
441 if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) ||
442 nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr) ||
443 nla_put_string(skb, IPSET_ATTR_IFACE, data->iface) ||
444 (flags &&
445 nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
446 goto nla_put_failure;
447 return 0;
448
449 nla_put_failure:
450 return 1;
451 }
452
453 static inline void
hash_netiface6_data_next(struct hash_netiface4_elem * next,const struct hash_netiface6_elem * d)454 hash_netiface6_data_next(struct hash_netiface4_elem *next,
455 const struct hash_netiface6_elem *d)
456 {
457 }
458
459 #undef MTYPE
460 #undef PF
461 #undef HOST_MASK
462 #undef HKEY_DATALEN
463
464 #define MTYPE hash_netiface6
465 #define PF 6
466 #define HOST_MASK 128
467 #define HKEY_DATALEN sizeof(struct hash_netiface6_elem_hashed)
468 #define IP_SET_EMIT_CREATE
469 #include "ip_set_hash_gen.h"
470
471 static int
hash_netiface6_kadt(struct ip_set * set,const struct sk_buff * skb,const struct xt_action_param * par,enum ipset_adt adt,struct ip_set_adt_opt * opt)472 hash_netiface6_kadt(struct ip_set *set, const struct sk_buff *skb,
473 const struct xt_action_param *par,
474 enum ipset_adt adt, struct ip_set_adt_opt *opt)
475 {
476 struct hash_netiface *h = set->data;
477 ipset_adtfn adtfn = set->variant->adt[adt];
478 struct hash_netiface6_elem e = {
479 .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
480 .elem = 1,
481 };
482 struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
483 int ret;
484
485 if (e.cidr == 0)
486 return -EINVAL;
487 if (adt == IPSET_TEST)
488 e.cidr = HOST_MASK;
489
490 ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
491 ip6_netmask(&e.ip, e.cidr);
492
493 if (opt->cmdflags & IPSET_FLAG_PHYSDEV) {
494 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
495 e.iface = SRCDIR ? get_physindev_name(skb) :
496 get_phyoutdev_name(skb);
497 if (!e.iface)
498 return -EINVAL;
499
500 e.physdev = 1;
501 #else
502 e.iface = NULL;
503 #endif
504 } else
505 e.iface = SRCDIR ? IFACE(in) : IFACE(out);
506
507 if (!e.iface)
508 return -EINVAL;
509 ret = iface_test(&h->rbtree, &e.iface);
510 if (adt == IPSET_ADD) {
511 if (!ret) {
512 ret = iface_add(&h->rbtree, &e.iface);
513 if (ret)
514 return ret;
515 }
516 } else if (!ret)
517 return ret;
518
519 return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
520 }
521
522 static int
hash_netiface6_uadt(struct ip_set * set,struct nlattr * tb[],enum ipset_adt adt,u32 * lineno,u32 flags,bool retried)523 hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[],
524 enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
525 {
526 struct hash_netiface *h = set->data;
527 ipset_adtfn adtfn = set->variant->adt[adt];
528 struct hash_netiface6_elem e = { .cidr = HOST_MASK, .elem = 1 };
529 struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
530 char iface[IFNAMSIZ];
531 int ret;
532
533 if (unlikely(!tb[IPSET_ATTR_IP] ||
534 !tb[IPSET_ATTR_IFACE] ||
535 !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
536 !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
537 !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
538 !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
539 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
540 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
541 !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
542 return -IPSET_ERR_PROTOCOL;
543 if (unlikely(tb[IPSET_ATTR_IP_TO]))
544 return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
545
546 if (tb[IPSET_ATTR_LINENO])
547 *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
548
549 ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
550 ip_set_get_extensions(set, tb, &ext);
551 if (ret)
552 return ret;
553
554 if (tb[IPSET_ATTR_CIDR])
555 e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
556 if (e.cidr > HOST_MASK)
557 return -IPSET_ERR_INVALID_CIDR;
558 ip6_netmask(&e.ip, e.cidr);
559
560 strcpy(iface, nla_data(tb[IPSET_ATTR_IFACE]));
561 e.iface = iface;
562 ret = iface_test(&h->rbtree, &e.iface);
563 if (adt == IPSET_ADD) {
564 if (!ret) {
565 ret = iface_add(&h->rbtree, &e.iface);
566 if (ret)
567 return ret;
568 }
569 } else if (!ret)
570 return ret;
571
572 if (tb[IPSET_ATTR_CADT_FLAGS]) {
573 u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
574 if (cadt_flags & IPSET_FLAG_PHYSDEV)
575 e.physdev = 1;
576 if (cadt_flags & IPSET_FLAG_NOMATCH)
577 flags |= (IPSET_FLAG_NOMATCH << 16);
578 }
579
580 ret = adtfn(set, &e, &ext, &ext, flags);
581
582 return ip_set_enomatch(ret, flags, adt, set) ? -ret :
583 ip_set_eexist(ret, flags) ? 0 : ret;
584 }
585
586 static struct ip_set_type hash_netiface_type __read_mostly = {
587 .name = "hash:net,iface",
588 .protocol = IPSET_PROTOCOL,
589 .features = IPSET_TYPE_IP | IPSET_TYPE_IFACE |
590 IPSET_TYPE_NOMATCH,
591 .dimension = IPSET_DIM_TWO,
592 .family = NFPROTO_UNSPEC,
593 .revision_min = IPSET_TYPE_REV_MIN,
594 .revision_max = IPSET_TYPE_REV_MAX,
595 .create = hash_netiface_create,
596 .create_policy = {
597 [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 },
598 [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 },
599 [IPSET_ATTR_PROBES] = { .type = NLA_U8 },
600 [IPSET_ATTR_RESIZE] = { .type = NLA_U8 },
601 [IPSET_ATTR_PROTO] = { .type = NLA_U8 },
602 [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
603 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
604 },
605 .adt_policy = {
606 [IPSET_ATTR_IP] = { .type = NLA_NESTED },
607 [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
608 [IPSET_ATTR_IFACE] = { .type = NLA_NUL_STRING,
609 .len = IFNAMSIZ - 1 },
610 [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
611 [IPSET_ATTR_CIDR] = { .type = NLA_U8 },
612 [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
613 [IPSET_ATTR_LINENO] = { .type = NLA_U32 },
614 [IPSET_ATTR_BYTES] = { .type = NLA_U64 },
615 [IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
616 [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
617 [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
618 [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
619 [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
620 },
621 .me = THIS_MODULE,
622 };
623
624 static int __init
hash_netiface_init(void)625 hash_netiface_init(void)
626 {
627 return ip_set_type_register(&hash_netiface_type);
628 }
629
630 static void __exit
hash_netiface_fini(void)631 hash_netiface_fini(void)
632 {
633 ip_set_type_unregister(&hash_netiface_type);
634 }
635
636 module_init(hash_netiface_init);
637 module_exit(hash_netiface_fini);
638