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netlabel_mgmt.c
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1 /*
2  * NetLabel Management Support
3  *
4  * This file defines the management functions for the NetLabel system. The
5  * NetLabel system manages static and dynamic label mappings for network
6  * protocols such as CIPSO and RIPSO.
7  *
8  * Author: Paul Moore <[email protected]>
9  *
10  */
11 
12 /*
13  * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
14  *
15  * This program is free software; you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License as published by
17  * the Free Software Foundation; either version 2 of the License, or
18  * (at your option) any later version.
19  *
20  * This program is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
23  * the GNU General Public License for more details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with this program; if not, write to the Free Software
27  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28  *
29  */
30 
31 #include <linux/types.h>
32 #include <linux/socket.h>
33 #include <linux/string.h>
34 #include <linux/skbuff.h>
35 #include <linux/in.h>
36 #include <linux/in6.h>
37 #include <linux/slab.h>
38 #include <net/sock.h>
39 #include <net/netlink.h>
40 #include <net/genetlink.h>
41 #include <net/ip.h>
42 #include <net/ipv6.h>
43 #include <net/netlabel.h>
44 #include <net/cipso_ipv4.h>
45 #include <linux/atomic.h>
46 
47 #include "netlabel_domainhash.h"
48 #include "netlabel_user.h"
49 #include "netlabel_mgmt.h"
50 
51 /* NetLabel configured protocol counter */
52 atomic_t netlabel_mgmt_protocount = ATOMIC_INIT(0);
53 
54 /* Argument struct for netlbl_domhsh_walk() */
55 struct netlbl_domhsh_walk_arg {
56  struct netlink_callback *nl_cb;
57  struct sk_buff *skb;
58  u32 seq;
59 };
60 
61 /* NetLabel Generic NETLINK CIPSOv4 family */
62 static struct genl_family netlbl_mgmt_gnl_family = {
63  .id = GENL_ID_GENERATE,
64  .hdrsize = 0,
65  .name = NETLBL_NLTYPE_MGMT_NAME,
66  .version = NETLBL_PROTO_VERSION,
67  .maxattr = NLBL_MGMT_A_MAX,
68 };
69 
70 /* NetLabel Netlink attribute policy */
71 static const struct nla_policy netlbl_mgmt_genl_policy[NLBL_MGMT_A_MAX + 1] = {
72  [NLBL_MGMT_A_DOMAIN] = { .type = NLA_NUL_STRING },
73  [NLBL_MGMT_A_PROTOCOL] = { .type = NLA_U32 },
74  [NLBL_MGMT_A_VERSION] = { .type = NLA_U32 },
75  [NLBL_MGMT_A_CV4DOI] = { .type = NLA_U32 },
76 };
77 
78 /*
79  * Helper Functions
80  */
81 
93 static int netlbl_mgmt_add_common(struct genl_info *info,
94  struct netlbl_audit *audit_info)
95 {
96  int ret_val = -EINVAL;
97  struct netlbl_dom_map *entry = NULL;
98  struct netlbl_domaddr_map *addrmap = NULL;
99  struct cipso_v4_doi *cipsov4 = NULL;
100  u32 tmp_val;
101 
102  entry = kzalloc(sizeof(*entry), GFP_KERNEL);
103  if (entry == NULL) {
104  ret_val = -ENOMEM;
105  goto add_failure;
106  }
107  entry->type = nla_get_u32(info->attrs[NLBL_MGMT_A_PROTOCOL]);
108  if (info->attrs[NLBL_MGMT_A_DOMAIN]) {
109  size_t tmp_size = nla_len(info->attrs[NLBL_MGMT_A_DOMAIN]);
110  entry->domain = kmalloc(tmp_size, GFP_KERNEL);
111  if (entry->domain == NULL) {
112  ret_val = -ENOMEM;
113  goto add_failure;
114  }
115  nla_strlcpy(entry->domain,
116  info->attrs[NLBL_MGMT_A_DOMAIN], tmp_size);
117  }
118 
119  /* NOTE: internally we allow/use a entry->type value of
120  * NETLBL_NLTYPE_ADDRSELECT but we don't currently allow users
121  * to pass that as a protocol value because we need to know the
122  * "real" protocol */
123 
124  switch (entry->type) {
125  case NETLBL_NLTYPE_UNLABELED:
126  break;
127  case NETLBL_NLTYPE_CIPSOV4:
128  if (!info->attrs[NLBL_MGMT_A_CV4DOI])
129  goto add_failure;
130 
131  tmp_val = nla_get_u32(info->attrs[NLBL_MGMT_A_CV4DOI]);
132  cipsov4 = cipso_v4_doi_getdef(tmp_val);
133  if (cipsov4 == NULL)
134  goto add_failure;
135  entry->type_def.cipsov4 = cipsov4;
136  break;
137  default:
138  goto add_failure;
139  }
140 
141  if (info->attrs[NLBL_MGMT_A_IPV4ADDR]) {
142  struct in_addr *addr;
143  struct in_addr *mask;
144  struct netlbl_domaddr4_map *map;
145 
146  addrmap = kzalloc(sizeof(*addrmap), GFP_KERNEL);
147  if (addrmap == NULL) {
148  ret_val = -ENOMEM;
149  goto add_failure;
150  }
151  INIT_LIST_HEAD(&addrmap->list4);
152  INIT_LIST_HEAD(&addrmap->list6);
153 
154  if (nla_len(info->attrs[NLBL_MGMT_A_IPV4ADDR]) !=
155  sizeof(struct in_addr)) {
156  ret_val = -EINVAL;
157  goto add_failure;
158  }
159  if (nla_len(info->attrs[NLBL_MGMT_A_IPV4MASK]) !=
160  sizeof(struct in_addr)) {
161  ret_val = -EINVAL;
162  goto add_failure;
163  }
164  addr = nla_data(info->attrs[NLBL_MGMT_A_IPV4ADDR]);
165  mask = nla_data(info->attrs[NLBL_MGMT_A_IPV4MASK]);
166 
167  map = kzalloc(sizeof(*map), GFP_KERNEL);
168  if (map == NULL) {
169  ret_val = -ENOMEM;
170  goto add_failure;
171  }
172  map->list.addr = addr->s_addr & mask->s_addr;
173  map->list.mask = mask->s_addr;
174  map->list.valid = 1;
175  map->type = entry->type;
176  if (cipsov4)
177  map->type_def.cipsov4 = cipsov4;
178 
179  ret_val = netlbl_af4list_add(&map->list, &addrmap->list4);
180  if (ret_val != 0) {
181  kfree(map);
182  goto add_failure;
183  }
184 
185  entry->type = NETLBL_NLTYPE_ADDRSELECT;
186  entry->type_def.addrsel = addrmap;
187 #if IS_ENABLED(CONFIG_IPV6)
188  } else if (info->attrs[NLBL_MGMT_A_IPV6ADDR]) {
189  struct in6_addr *addr;
190  struct in6_addr *mask;
191  struct netlbl_domaddr6_map *map;
192 
193  addrmap = kzalloc(sizeof(*addrmap), GFP_KERNEL);
194  if (addrmap == NULL) {
195  ret_val = -ENOMEM;
196  goto add_failure;
197  }
198  INIT_LIST_HEAD(&addrmap->list4);
199  INIT_LIST_HEAD(&addrmap->list6);
200 
201  if (nla_len(info->attrs[NLBL_MGMT_A_IPV6ADDR]) !=
202  sizeof(struct in6_addr)) {
203  ret_val = -EINVAL;
204  goto add_failure;
205  }
206  if (nla_len(info->attrs[NLBL_MGMT_A_IPV6MASK]) !=
207  sizeof(struct in6_addr)) {
208  ret_val = -EINVAL;
209  goto add_failure;
210  }
211  addr = nla_data(info->attrs[NLBL_MGMT_A_IPV6ADDR]);
212  mask = nla_data(info->attrs[NLBL_MGMT_A_IPV6MASK]);
213 
214  map = kzalloc(sizeof(*map), GFP_KERNEL);
215  if (map == NULL) {
216  ret_val = -ENOMEM;
217  goto add_failure;
218  }
219  map->list.addr = *addr;
220  map->list.addr.s6_addr32[0] &= mask->s6_addr32[0];
221  map->list.addr.s6_addr32[1] &= mask->s6_addr32[1];
222  map->list.addr.s6_addr32[2] &= mask->s6_addr32[2];
223  map->list.addr.s6_addr32[3] &= mask->s6_addr32[3];
224  map->list.mask = *mask;
225  map->list.valid = 1;
226  map->type = entry->type;
227 
228  ret_val = netlbl_af6list_add(&map->list, &addrmap->list6);
229  if (ret_val != 0) {
230  kfree(map);
231  goto add_failure;
232  }
233 
234  entry->type = NETLBL_NLTYPE_ADDRSELECT;
235  entry->type_def.addrsel = addrmap;
236 #endif /* IPv6 */
237  }
238 
239  ret_val = netlbl_domhsh_add(entry, audit_info);
240  if (ret_val != 0)
241  goto add_failure;
242 
243  return 0;
244 
245 add_failure:
246  if (cipsov4)
247  cipso_v4_doi_putdef(cipsov4);
248  if (entry)
249  kfree(entry->domain);
250  kfree(addrmap);
251  kfree(entry);
252  return ret_val;
253 }
254 
266 static int netlbl_mgmt_listentry(struct sk_buff *skb,
267  struct netlbl_dom_map *entry)
268 {
269  int ret_val = 0;
270  struct nlattr *nla_a;
271  struct nlattr *nla_b;
272  struct netlbl_af4list *iter4;
273 #if IS_ENABLED(CONFIG_IPV6)
274  struct netlbl_af6list *iter6;
275 #endif
276 
277  if (entry->domain != NULL) {
278  ret_val = nla_put_string(skb,
279  NLBL_MGMT_A_DOMAIN, entry->domain);
280  if (ret_val != 0)
281  return ret_val;
282  }
283 
284  switch (entry->type) {
285  case NETLBL_NLTYPE_ADDRSELECT:
286  nla_a = nla_nest_start(skb, NLBL_MGMT_A_SELECTORLIST);
287  if (nla_a == NULL)
288  return -ENOMEM;
289 
290  netlbl_af4list_foreach_rcu(iter4,
291  &entry->type_def.addrsel->list4) {
292  struct netlbl_domaddr4_map *map4;
293  struct in_addr addr_struct;
294 
295  nla_b = nla_nest_start(skb, NLBL_MGMT_A_ADDRSELECTOR);
296  if (nla_b == NULL)
297  return -ENOMEM;
298 
299  addr_struct.s_addr = iter4->addr;
300  ret_val = nla_put(skb, NLBL_MGMT_A_IPV4ADDR,
301  sizeof(struct in_addr),
302  &addr_struct);
303  if (ret_val != 0)
304  return ret_val;
305  addr_struct.s_addr = iter4->mask;
306  ret_val = nla_put(skb, NLBL_MGMT_A_IPV4MASK,
307  sizeof(struct in_addr),
308  &addr_struct);
309  if (ret_val != 0)
310  return ret_val;
311  map4 = netlbl_domhsh_addr4_entry(iter4);
312  ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL,
313  map4->type);
314  if (ret_val != 0)
315  return ret_val;
316  switch (map4->type) {
317  case NETLBL_NLTYPE_CIPSOV4:
318  ret_val = nla_put_u32(skb, NLBL_MGMT_A_CV4DOI,
319  map4->type_def.cipsov4->doi);
320  if (ret_val != 0)
321  return ret_val;
322  break;
323  }
324 
325  nla_nest_end(skb, nla_b);
326  }
327 #if IS_ENABLED(CONFIG_IPV6)
328  netlbl_af6list_foreach_rcu(iter6,
329  &entry->type_def.addrsel->list6) {
330  struct netlbl_domaddr6_map *map6;
331 
332  nla_b = nla_nest_start(skb, NLBL_MGMT_A_ADDRSELECTOR);
333  if (nla_b == NULL)
334  return -ENOMEM;
335 
336  ret_val = nla_put(skb, NLBL_MGMT_A_IPV6ADDR,
337  sizeof(struct in6_addr),
338  &iter6->addr);
339  if (ret_val != 0)
340  return ret_val;
341  ret_val = nla_put(skb, NLBL_MGMT_A_IPV6MASK,
342  sizeof(struct in6_addr),
343  &iter6->mask);
344  if (ret_val != 0)
345  return ret_val;
346  map6 = netlbl_domhsh_addr6_entry(iter6);
347  ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL,
348  map6->type);
349  if (ret_val != 0)
350  return ret_val;
351 
352  nla_nest_end(skb, nla_b);
353  }
354 #endif /* IPv6 */
355 
356  nla_nest_end(skb, nla_a);
357  break;
358  case NETLBL_NLTYPE_UNLABELED:
359  ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL, entry->type);
360  break;
361  case NETLBL_NLTYPE_CIPSOV4:
362  ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL, entry->type);
363  if (ret_val != 0)
364  return ret_val;
365  ret_val = nla_put_u32(skb, NLBL_MGMT_A_CV4DOI,
366  entry->type_def.cipsov4->doi);
367  break;
368  }
369 
370  return ret_val;
371 }
372 
373 /*
374  * NetLabel Command Handlers
375  */
376 
388 static int netlbl_mgmt_add(struct sk_buff *skb, struct genl_info *info)
389 {
390  struct netlbl_audit audit_info;
391 
392  if ((!info->attrs[NLBL_MGMT_A_DOMAIN]) ||
393  (!info->attrs[NLBL_MGMT_A_PROTOCOL]) ||
394  (info->attrs[NLBL_MGMT_A_IPV4ADDR] &&
395  info->attrs[NLBL_MGMT_A_IPV6ADDR]) ||
396  (info->attrs[NLBL_MGMT_A_IPV4MASK] &&
397  info->attrs[NLBL_MGMT_A_IPV6MASK]) ||
398  ((info->attrs[NLBL_MGMT_A_IPV4ADDR] != NULL) ^
399  (info->attrs[NLBL_MGMT_A_IPV4MASK] != NULL)) ||
400  ((info->attrs[NLBL_MGMT_A_IPV6ADDR] != NULL) ^
401  (info->attrs[NLBL_MGMT_A_IPV6MASK] != NULL)))
402  return -EINVAL;
403 
404  netlbl_netlink_auditinfo(skb, &audit_info);
405 
406  return netlbl_mgmt_add_common(info, &audit_info);
407 }
408 
419 static int netlbl_mgmt_remove(struct sk_buff *skb, struct genl_info *info)
420 {
421  char *domain;
422  struct netlbl_audit audit_info;
423 
424  if (!info->attrs[NLBL_MGMT_A_DOMAIN])
425  return -EINVAL;
426 
427  netlbl_netlink_auditinfo(skb, &audit_info);
428 
429  domain = nla_data(info->attrs[NLBL_MGMT_A_DOMAIN]);
430  return netlbl_domhsh_remove(domain, &audit_info);
431 }
432 
445 static int netlbl_mgmt_listall_cb(struct netlbl_dom_map *entry, void *arg)
446 {
447  int ret_val = -ENOMEM;
448  struct netlbl_domhsh_walk_arg *cb_arg = arg;
449  void *data;
450 
451  data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).portid,
452  cb_arg->seq, &netlbl_mgmt_gnl_family,
453  NLM_F_MULTI, NLBL_MGMT_C_LISTALL);
454  if (data == NULL)
455  goto listall_cb_failure;
456 
457  ret_val = netlbl_mgmt_listentry(cb_arg->skb, entry);
458  if (ret_val != 0)
459  goto listall_cb_failure;
460 
461  cb_arg->seq++;
462  return genlmsg_end(cb_arg->skb, data);
463 
464 listall_cb_failure:
465  genlmsg_cancel(cb_arg->skb, data);
466  return ret_val;
467 }
468 
480 static int netlbl_mgmt_listall(struct sk_buff *skb,
481  struct netlink_callback *cb)
482 {
483  struct netlbl_domhsh_walk_arg cb_arg;
484  u32 skip_bkt = cb->args[0];
485  u32 skip_chain = cb->args[1];
486 
487  cb_arg.nl_cb = cb;
488  cb_arg.skb = skb;
489  cb_arg.seq = cb->nlh->nlmsg_seq;
490 
491  netlbl_domhsh_walk(&skip_bkt,
492  &skip_chain,
493  netlbl_mgmt_listall_cb,
494  &cb_arg);
495 
496  cb->args[0] = skip_bkt;
497  cb->args[1] = skip_chain;
498  return skb->len;
499 }
500 
511 static int netlbl_mgmt_adddef(struct sk_buff *skb, struct genl_info *info)
512 {
513  struct netlbl_audit audit_info;
514 
515  if ((!info->attrs[NLBL_MGMT_A_PROTOCOL]) ||
516  (info->attrs[NLBL_MGMT_A_IPV4ADDR] &&
517  info->attrs[NLBL_MGMT_A_IPV6ADDR]) ||
518  (info->attrs[NLBL_MGMT_A_IPV4MASK] &&
519  info->attrs[NLBL_MGMT_A_IPV6MASK]) ||
520  ((info->attrs[NLBL_MGMT_A_IPV4ADDR] != NULL) ^
521  (info->attrs[NLBL_MGMT_A_IPV4MASK] != NULL)) ||
522  ((info->attrs[NLBL_MGMT_A_IPV6ADDR] != NULL) ^
523  (info->attrs[NLBL_MGMT_A_IPV6MASK] != NULL)))
524  return -EINVAL;
525 
526  netlbl_netlink_auditinfo(skb, &audit_info);
527 
528  return netlbl_mgmt_add_common(info, &audit_info);
529 }
530 
541 static int netlbl_mgmt_removedef(struct sk_buff *skb, struct genl_info *info)
542 {
543  struct netlbl_audit audit_info;
544 
545  netlbl_netlink_auditinfo(skb, &audit_info);
546 
547  return netlbl_domhsh_remove_default(&audit_info);
548 }
549 
561 static int netlbl_mgmt_listdef(struct sk_buff *skb, struct genl_info *info)
562 {
563  int ret_val = -ENOMEM;
564  struct sk_buff *ans_skb = NULL;
565  void *data;
566  struct netlbl_dom_map *entry;
567 
568  ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
569  if (ans_skb == NULL)
570  return -ENOMEM;
571  data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family,
572  0, NLBL_MGMT_C_LISTDEF);
573  if (data == NULL)
574  goto listdef_failure;
575 
576  rcu_read_lock();
577  entry = netlbl_domhsh_getentry(NULL);
578  if (entry == NULL) {
579  ret_val = -ENOENT;
580  goto listdef_failure_lock;
581  }
582  ret_val = netlbl_mgmt_listentry(ans_skb, entry);
583  rcu_read_unlock();
584  if (ret_val != 0)
585  goto listdef_failure;
586 
587  genlmsg_end(ans_skb, data);
588  return genlmsg_reply(ans_skb, info);
589 
590 listdef_failure_lock:
591  rcu_read_unlock();
592 listdef_failure:
593  kfree_skb(ans_skb);
594  return ret_val;
595 }
596 
609 static int netlbl_mgmt_protocols_cb(struct sk_buff *skb,
610  struct netlink_callback *cb,
611  u32 protocol)
612 {
613  int ret_val = -ENOMEM;
614  void *data;
615 
616  data = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
617  &netlbl_mgmt_gnl_family, NLM_F_MULTI,
618  NLBL_MGMT_C_PROTOCOLS);
619  if (data == NULL)
620  goto protocols_cb_failure;
621 
622  ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL, protocol);
623  if (ret_val != 0)
624  goto protocols_cb_failure;
625 
626  return genlmsg_end(skb, data);
627 
628 protocols_cb_failure:
629  genlmsg_cancel(skb, data);
630  return ret_val;
631 }
632 
642 static int netlbl_mgmt_protocols(struct sk_buff *skb,
643  struct netlink_callback *cb)
644 {
645  u32 protos_sent = cb->args[0];
646 
647  if (protos_sent == 0) {
648  if (netlbl_mgmt_protocols_cb(skb,
649  cb,
650  NETLBL_NLTYPE_UNLABELED) < 0)
651  goto protocols_return;
652  protos_sent++;
653  }
654  if (protos_sent == 1) {
655  if (netlbl_mgmt_protocols_cb(skb,
656  cb,
657  NETLBL_NLTYPE_CIPSOV4) < 0)
658  goto protocols_return;
659  protos_sent++;
660  }
661 
662 protocols_return:
663  cb->args[0] = protos_sent;
664  return skb->len;
665 }
666 
677 static int netlbl_mgmt_version(struct sk_buff *skb, struct genl_info *info)
678 {
679  int ret_val = -ENOMEM;
680  struct sk_buff *ans_skb = NULL;
681  void *data;
682 
683  ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
684  if (ans_skb == NULL)
685  return -ENOMEM;
686  data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family,
687  0, NLBL_MGMT_C_VERSION);
688  if (data == NULL)
689  goto version_failure;
690 
691  ret_val = nla_put_u32(ans_skb,
692  NLBL_MGMT_A_VERSION,
693  NETLBL_PROTO_VERSION);
694  if (ret_val != 0)
695  goto version_failure;
696 
697  genlmsg_end(ans_skb, data);
698  return genlmsg_reply(ans_skb, info);
699 
700 version_failure:
701  kfree_skb(ans_skb);
702  return ret_val;
703 }
704 
705 
706 /*
707  * NetLabel Generic NETLINK Command Definitions
708  */
709 
710 static struct genl_ops netlbl_mgmt_genl_ops[] = {
711  {
712  .cmd = NLBL_MGMT_C_ADD,
713  .flags = GENL_ADMIN_PERM,
714  .policy = netlbl_mgmt_genl_policy,
715  .doit = netlbl_mgmt_add,
716  .dumpit = NULL,
717  },
718  {
719  .cmd = NLBL_MGMT_C_REMOVE,
720  .flags = GENL_ADMIN_PERM,
721  .policy = netlbl_mgmt_genl_policy,
722  .doit = netlbl_mgmt_remove,
723  .dumpit = NULL,
724  },
725  {
726  .cmd = NLBL_MGMT_C_LISTALL,
727  .flags = 0,
728  .policy = netlbl_mgmt_genl_policy,
729  .doit = NULL,
730  .dumpit = netlbl_mgmt_listall,
731  },
732  {
733  .cmd = NLBL_MGMT_C_ADDDEF,
734  .flags = GENL_ADMIN_PERM,
735  .policy = netlbl_mgmt_genl_policy,
736  .doit = netlbl_mgmt_adddef,
737  .dumpit = NULL,
738  },
739  {
740  .cmd = NLBL_MGMT_C_REMOVEDEF,
741  .flags = GENL_ADMIN_PERM,
742  .policy = netlbl_mgmt_genl_policy,
743  .doit = netlbl_mgmt_removedef,
744  .dumpit = NULL,
745  },
746  {
747  .cmd = NLBL_MGMT_C_LISTDEF,
748  .flags = 0,
749  .policy = netlbl_mgmt_genl_policy,
750  .doit = netlbl_mgmt_listdef,
751  .dumpit = NULL,
752  },
753  {
754  .cmd = NLBL_MGMT_C_PROTOCOLS,
755  .flags = 0,
756  .policy = netlbl_mgmt_genl_policy,
757  .doit = NULL,
758  .dumpit = netlbl_mgmt_protocols,
759  },
760  {
761  .cmd = NLBL_MGMT_C_VERSION,
762  .flags = 0,
763  .policy = netlbl_mgmt_genl_policy,
764  .doit = netlbl_mgmt_version,
765  .dumpit = NULL,
766  },
767 };
768 
769 /*
770  * NetLabel Generic NETLINK Protocol Functions
771  */
772 
781 int __init netlbl_mgmt_genl_init(void)
782 {
783  return genl_register_family_with_ops(&netlbl_mgmt_gnl_family,
784  netlbl_mgmt_genl_ops, ARRAY_SIZE(netlbl_mgmt_genl_ops));
785 }
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