Commit | Line | Data |
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d15c345f PM |
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 <paul.moore@hp.com> | |
9 | * | |
10 | */ | |
11 | ||
12 | /* | |
13 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006 | |
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 <net/sock.h> | |
36 | #include <net/netlink.h> | |
37 | #include <net/genetlink.h> | |
38 | #include <net/netlabel.h> | |
39 | #include <net/cipso_ipv4.h> | |
40 | ||
41 | #include "netlabel_domainhash.h" | |
42 | #include "netlabel_user.h" | |
43 | #include "netlabel_mgmt.h" | |
44 | ||
fd385855 PM |
45 | /* Argument struct for netlbl_domhsh_walk() */ |
46 | struct netlbl_domhsh_walk_arg { | |
47 | struct netlink_callback *nl_cb; | |
48 | struct sk_buff *skb; | |
49 | u32 seq; | |
50 | }; | |
51 | ||
d15c345f PM |
52 | /* NetLabel Generic NETLINK CIPSOv4 family */ |
53 | static struct genl_family netlbl_mgmt_gnl_family = { | |
54 | .id = GENL_ID_GENERATE, | |
55 | .hdrsize = 0, | |
56 | .name = NETLBL_NLTYPE_MGMT_NAME, | |
57 | .version = NETLBL_PROTO_VERSION, | |
fd385855 | 58 | .maxattr = NLBL_MGMT_A_MAX, |
d15c345f PM |
59 | }; |
60 | ||
fd385855 | 61 | /* NetLabel Netlink attribute policy */ |
ef7c79ed | 62 | static const struct nla_policy netlbl_mgmt_genl_policy[NLBL_MGMT_A_MAX + 1] = { |
fd385855 PM |
63 | [NLBL_MGMT_A_DOMAIN] = { .type = NLA_NUL_STRING }, |
64 | [NLBL_MGMT_A_PROTOCOL] = { .type = NLA_U32 }, | |
65 | [NLBL_MGMT_A_VERSION] = { .type = NLA_U32 }, | |
66 | [NLBL_MGMT_A_CV4DOI] = { .type = NLA_U32 }, | |
67 | }; | |
d15c345f PM |
68 | |
69 | /* | |
70 | * NetLabel Command Handlers | |
71 | */ | |
72 | ||
73 | /** | |
74 | * netlbl_mgmt_add - Handle an ADD message | |
75 | * @skb: the NETLINK buffer | |
76 | * @info: the Generic NETLINK info block | |
77 | * | |
78 | * Description: | |
79 | * Process a user generated ADD message and add the domains from the message | |
80 | * to the hash table. See netlabel.h for a description of the message format. | |
81 | * Returns zero on success, negative values on failure. | |
82 | * | |
83 | */ | |
84 | static int netlbl_mgmt_add(struct sk_buff *skb, struct genl_info *info) | |
85 | { | |
86 | int ret_val = -EINVAL; | |
d15c345f | 87 | struct netlbl_dom_map *entry = NULL; |
fd385855 | 88 | size_t tmp_size; |
d15c345f | 89 | u32 tmp_val; |
95d4e6be | 90 | struct netlbl_audit audit_info; |
d15c345f | 91 | |
fd385855 PM |
92 | if (!info->attrs[NLBL_MGMT_A_DOMAIN] || |
93 | !info->attrs[NLBL_MGMT_A_PROTOCOL]) | |
d15c345f PM |
94 | goto add_failure; |
95 | ||
95d4e6be PM |
96 | netlbl_netlink_auditinfo(skb, &audit_info); |
97 | ||
fd385855 PM |
98 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
99 | if (entry == NULL) { | |
100 | ret_val = -ENOMEM; | |
101 | goto add_failure; | |
102 | } | |
103 | tmp_size = nla_len(info->attrs[NLBL_MGMT_A_DOMAIN]); | |
104 | entry->domain = kmalloc(tmp_size, GFP_KERNEL); | |
105 | if (entry->domain == NULL) { | |
106 | ret_val = -ENOMEM; | |
d15c345f | 107 | goto add_failure; |
fd385855 PM |
108 | } |
109 | entry->type = nla_get_u32(info->attrs[NLBL_MGMT_A_PROTOCOL]); | |
110 | nla_strlcpy(entry->domain, info->attrs[NLBL_MGMT_A_DOMAIN], tmp_size); | |
d15c345f | 111 | |
fd385855 PM |
112 | switch (entry->type) { |
113 | case NETLBL_NLTYPE_UNLABELED: | |
95d4e6be | 114 | ret_val = netlbl_domhsh_add(entry, &audit_info); |
fd385855 PM |
115 | break; |
116 | case NETLBL_NLTYPE_CIPSOV4: | |
117 | if (!info->attrs[NLBL_MGMT_A_CV4DOI]) | |
d15c345f | 118 | goto add_failure; |
d15c345f | 119 | |
fd385855 PM |
120 | tmp_val = nla_get_u32(info->attrs[NLBL_MGMT_A_CV4DOI]); |
121 | /* We should be holding a rcu_read_lock() here while we hold | |
122 | * the result but since the entry will always be deleted when | |
123 | * the CIPSO DOI is deleted we aren't going to keep the | |
124 | * lock. */ | |
125 | rcu_read_lock(); | |
126 | entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); | |
127 | if (entry->type_def.cipsov4 == NULL) { | |
d15c345f | 128 | rcu_read_unlock(); |
d15c345f | 129 | goto add_failure; |
fd385855 | 130 | } |
95d4e6be | 131 | ret_val = netlbl_domhsh_add(entry, &audit_info); |
fd385855 PM |
132 | rcu_read_unlock(); |
133 | break; | |
134 | default: | |
135 | goto add_failure; | |
d15c345f | 136 | } |
fd385855 PM |
137 | if (ret_val != 0) |
138 | goto add_failure; | |
d15c345f | 139 | |
d15c345f PM |
140 | return 0; |
141 | ||
142 | add_failure: | |
143 | if (entry) | |
144 | kfree(entry->domain); | |
145 | kfree(entry); | |
d15c345f PM |
146 | return ret_val; |
147 | } | |
148 | ||
149 | /** | |
150 | * netlbl_mgmt_remove - Handle a REMOVE message | |
151 | * @skb: the NETLINK buffer | |
152 | * @info: the Generic NETLINK info block | |
153 | * | |
154 | * Description: | |
155 | * Process a user generated REMOVE message and remove the specified domain | |
156 | * mappings. Returns zero on success, negative values on failure. | |
157 | * | |
158 | */ | |
159 | static int netlbl_mgmt_remove(struct sk_buff *skb, struct genl_info *info) | |
160 | { | |
fd385855 | 161 | char *domain; |
95d4e6be | 162 | struct netlbl_audit audit_info; |
d15c345f | 163 | |
fd385855 PM |
164 | if (!info->attrs[NLBL_MGMT_A_DOMAIN]) |
165 | return -EINVAL; | |
d15c345f | 166 | |
95d4e6be PM |
167 | netlbl_netlink_auditinfo(skb, &audit_info); |
168 | ||
fd385855 | 169 | domain = nla_data(info->attrs[NLBL_MGMT_A_DOMAIN]); |
95d4e6be | 170 | return netlbl_domhsh_remove(domain, &audit_info); |
fd385855 PM |
171 | } |
172 | ||
173 | /** | |
174 | * netlbl_mgmt_listall_cb - netlbl_domhsh_walk() callback for LISTALL | |
175 | * @entry: the domain mapping hash table entry | |
176 | * @arg: the netlbl_domhsh_walk_arg structure | |
177 | * | |
178 | * Description: | |
179 | * This function is designed to be used as a callback to the | |
180 | * netlbl_domhsh_walk() function for use in generating a response for a LISTALL | |
181 | * message. Returns the size of the message on success, negative values on | |
182 | * failure. | |
183 | * | |
184 | */ | |
185 | static int netlbl_mgmt_listall_cb(struct netlbl_dom_map *entry, void *arg) | |
186 | { | |
187 | int ret_val = -ENOMEM; | |
188 | struct netlbl_domhsh_walk_arg *cb_arg = arg; | |
189 | void *data; | |
190 | ||
17c157c8 TG |
191 | data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).pid, |
192 | cb_arg->seq, &netlbl_mgmt_gnl_family, | |
193 | NLM_F_MULTI, NLBL_MGMT_C_LISTALL); | |
fd385855 PM |
194 | if (data == NULL) |
195 | goto listall_cb_failure; | |
196 | ||
197 | ret_val = nla_put_string(cb_arg->skb, | |
198 | NLBL_MGMT_A_DOMAIN, | |
199 | entry->domain); | |
200 | if (ret_val != 0) | |
201 | goto listall_cb_failure; | |
202 | ret_val = nla_put_u32(cb_arg->skb, NLBL_MGMT_A_PROTOCOL, entry->type); | |
203 | if (ret_val != 0) | |
204 | goto listall_cb_failure; | |
205 | switch (entry->type) { | |
206 | case NETLBL_NLTYPE_CIPSOV4: | |
207 | ret_val = nla_put_u32(cb_arg->skb, | |
208 | NLBL_MGMT_A_CV4DOI, | |
209 | entry->type_def.cipsov4->doi); | |
d15c345f | 210 | if (ret_val != 0) |
fd385855 PM |
211 | goto listall_cb_failure; |
212 | break; | |
d15c345f PM |
213 | } |
214 | ||
fd385855 PM |
215 | cb_arg->seq++; |
216 | return genlmsg_end(cb_arg->skb, data); | |
d15c345f | 217 | |
fd385855 PM |
218 | listall_cb_failure: |
219 | genlmsg_cancel(cb_arg->skb, data); | |
d15c345f PM |
220 | return ret_val; |
221 | } | |
222 | ||
223 | /** | |
fd385855 | 224 | * netlbl_mgmt_listall - Handle a LISTALL message |
d15c345f | 225 | * @skb: the NETLINK buffer |
fd385855 | 226 | * @cb: the NETLINK callback |
d15c345f PM |
227 | * |
228 | * Description: | |
fd385855 PM |
229 | * Process a user generated LISTALL message and dumps the domain hash table in |
230 | * a form suitable for use in a kernel generated LISTALL message. Returns zero | |
231 | * on success, negative values on failure. | |
d15c345f PM |
232 | * |
233 | */ | |
fd385855 PM |
234 | static int netlbl_mgmt_listall(struct sk_buff *skb, |
235 | struct netlink_callback *cb) | |
d15c345f | 236 | { |
fd385855 PM |
237 | struct netlbl_domhsh_walk_arg cb_arg; |
238 | u32 skip_bkt = cb->args[0]; | |
239 | u32 skip_chain = cb->args[1]; | |
240 | ||
241 | cb_arg.nl_cb = cb; | |
242 | cb_arg.skb = skb; | |
243 | cb_arg.seq = cb->nlh->nlmsg_seq; | |
244 | ||
245 | netlbl_domhsh_walk(&skip_bkt, | |
246 | &skip_chain, | |
247 | netlbl_mgmt_listall_cb, | |
248 | &cb_arg); | |
249 | ||
250 | cb->args[0] = skip_bkt; | |
251 | cb->args[1] = skip_chain; | |
252 | return skb->len; | |
d15c345f PM |
253 | } |
254 | ||
255 | /** | |
256 | * netlbl_mgmt_adddef - Handle an ADDDEF message | |
257 | * @skb: the NETLINK buffer | |
258 | * @info: the Generic NETLINK info block | |
259 | * | |
260 | * Description: | |
261 | * Process a user generated ADDDEF message and respond accordingly. Returns | |
262 | * zero on success, negative values on failure. | |
263 | * | |
264 | */ | |
265 | static int netlbl_mgmt_adddef(struct sk_buff *skb, struct genl_info *info) | |
266 | { | |
267 | int ret_val = -EINVAL; | |
d15c345f PM |
268 | struct netlbl_dom_map *entry = NULL; |
269 | u32 tmp_val; | |
95d4e6be | 270 | struct netlbl_audit audit_info; |
d15c345f | 271 | |
fd385855 | 272 | if (!info->attrs[NLBL_MGMT_A_PROTOCOL]) |
d15c345f | 273 | goto adddef_failure; |
d15c345f | 274 | |
95d4e6be PM |
275 | netlbl_netlink_auditinfo(skb, &audit_info); |
276 | ||
d15c345f PM |
277 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
278 | if (entry == NULL) { | |
279 | ret_val = -ENOMEM; | |
280 | goto adddef_failure; | |
281 | } | |
fd385855 | 282 | entry->type = nla_get_u32(info->attrs[NLBL_MGMT_A_PROTOCOL]); |
d15c345f | 283 | |
d15c345f PM |
284 | switch (entry->type) { |
285 | case NETLBL_NLTYPE_UNLABELED: | |
95d4e6be | 286 | ret_val = netlbl_domhsh_add_default(entry, &audit_info); |
d15c345f PM |
287 | break; |
288 | case NETLBL_NLTYPE_CIPSOV4: | |
fd385855 | 289 | if (!info->attrs[NLBL_MGMT_A_CV4DOI]) |
d15c345f | 290 | goto adddef_failure; |
fd385855 PM |
291 | |
292 | tmp_val = nla_get_u32(info->attrs[NLBL_MGMT_A_CV4DOI]); | |
293 | /* We should be holding a rcu_read_lock() here while we hold | |
294 | * the result but since the entry will always be deleted when | |
295 | * the CIPSO DOI is deleted we aren't going to keep the | |
296 | * lock. */ | |
d15c345f PM |
297 | rcu_read_lock(); |
298 | entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); | |
299 | if (entry->type_def.cipsov4 == NULL) { | |
300 | rcu_read_unlock(); | |
d15c345f PM |
301 | goto adddef_failure; |
302 | } | |
95d4e6be | 303 | ret_val = netlbl_domhsh_add_default(entry, &audit_info); |
d15c345f PM |
304 | rcu_read_unlock(); |
305 | break; | |
306 | default: | |
fd385855 | 307 | goto adddef_failure; |
d15c345f PM |
308 | } |
309 | if (ret_val != 0) | |
310 | goto adddef_failure; | |
311 | ||
d15c345f PM |
312 | return 0; |
313 | ||
314 | adddef_failure: | |
315 | kfree(entry); | |
d15c345f PM |
316 | return ret_val; |
317 | } | |
318 | ||
319 | /** | |
320 | * netlbl_mgmt_removedef - Handle a REMOVEDEF message | |
321 | * @skb: the NETLINK buffer | |
322 | * @info: the Generic NETLINK info block | |
323 | * | |
324 | * Description: | |
325 | * Process a user generated REMOVEDEF message and remove the default domain | |
326 | * mapping. Returns zero on success, negative values on failure. | |
327 | * | |
328 | */ | |
329 | static int netlbl_mgmt_removedef(struct sk_buff *skb, struct genl_info *info) | |
330 | { | |
95d4e6be PM |
331 | struct netlbl_audit audit_info; |
332 | ||
333 | netlbl_netlink_auditinfo(skb, &audit_info); | |
334 | ||
335 | return netlbl_domhsh_remove_default(&audit_info); | |
d15c345f PM |
336 | } |
337 | ||
338 | /** | |
339 | * netlbl_mgmt_listdef - Handle a LISTDEF message | |
340 | * @skb: the NETLINK buffer | |
341 | * @info: the Generic NETLINK info block | |
342 | * | |
343 | * Description: | |
344 | * Process a user generated LISTDEF message and dumps the default domain | |
345 | * mapping in a form suitable for use in a kernel generated LISTDEF message. | |
346 | * Returns zero on success, negative values on failure. | |
347 | * | |
348 | */ | |
349 | static int netlbl_mgmt_listdef(struct sk_buff *skb, struct genl_info *info) | |
350 | { | |
351 | int ret_val = -ENOMEM; | |
fd385855 PM |
352 | struct sk_buff *ans_skb = NULL; |
353 | void *data; | |
354 | struct netlbl_dom_map *entry; | |
d15c345f | 355 | |
339bf98f | 356 | ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
d15c345f | 357 | if (ans_skb == NULL) |
fd385855 | 358 | return -ENOMEM; |
17c157c8 TG |
359 | data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family, |
360 | 0, NLBL_MGMT_C_LISTDEF); | |
fd385855 | 361 | if (data == NULL) |
d15c345f | 362 | goto listdef_failure; |
d15c345f | 363 | |
fd385855 PM |
364 | rcu_read_lock(); |
365 | entry = netlbl_domhsh_getentry(NULL); | |
366 | if (entry == NULL) { | |
367 | ret_val = -ENOENT; | |
368 | goto listdef_failure_lock; | |
369 | } | |
370 | ret_val = nla_put_u32(ans_skb, NLBL_MGMT_A_PROTOCOL, entry->type); | |
d15c345f | 371 | if (ret_val != 0) |
fd385855 PM |
372 | goto listdef_failure_lock; |
373 | switch (entry->type) { | |
374 | case NETLBL_NLTYPE_CIPSOV4: | |
375 | ret_val = nla_put_u32(ans_skb, | |
376 | NLBL_MGMT_A_CV4DOI, | |
377 | entry->type_def.cipsov4->doi); | |
378 | if (ret_val != 0) | |
379 | goto listdef_failure_lock; | |
380 | break; | |
381 | } | |
382 | rcu_read_unlock(); | |
d15c345f | 383 | |
fd385855 PM |
384 | genlmsg_end(ans_skb, data); |
385 | ||
81878d27 | 386 | ret_val = genlmsg_reply(ans_skb, info); |
fd385855 PM |
387 | if (ret_val != 0) |
388 | goto listdef_failure; | |
d15c345f PM |
389 | return 0; |
390 | ||
fd385855 PM |
391 | listdef_failure_lock: |
392 | rcu_read_unlock(); | |
d15c345f | 393 | listdef_failure: |
fd385855 | 394 | kfree_skb(ans_skb); |
d15c345f PM |
395 | return ret_val; |
396 | } | |
397 | ||
398 | /** | |
fd385855 PM |
399 | * netlbl_mgmt_protocols_cb - Write an individual PROTOCOL message response |
400 | * @skb: the skb to write to | |
401 | * @seq: the NETLINK sequence number | |
402 | * @cb: the NETLINK callback | |
403 | * @protocol: the NetLabel protocol to use in the message | |
d15c345f PM |
404 | * |
405 | * Description: | |
fd385855 PM |
406 | * This function is to be used in conjunction with netlbl_mgmt_protocols() to |
407 | * answer a application's PROTOCOLS message. Returns the size of the message | |
408 | * on success, negative values on failure. | |
d15c345f PM |
409 | * |
410 | */ | |
fd385855 PM |
411 | static int netlbl_mgmt_protocols_cb(struct sk_buff *skb, |
412 | struct netlink_callback *cb, | |
413 | u32 protocol) | |
d15c345f PM |
414 | { |
415 | int ret_val = -ENOMEM; | |
fd385855 PM |
416 | void *data; |
417 | ||
17c157c8 TG |
418 | data = genlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, |
419 | &netlbl_mgmt_gnl_family, NLM_F_MULTI, | |
420 | NLBL_MGMT_C_PROTOCOLS); | |
fd385855 PM |
421 | if (data == NULL) |
422 | goto protocols_cb_failure; | |
423 | ||
424 | ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL, protocol); | |
d15c345f | 425 | if (ret_val != 0) |
fd385855 | 426 | goto protocols_cb_failure; |
d15c345f | 427 | |
fd385855 | 428 | return genlmsg_end(skb, data); |
d15c345f | 429 | |
fd385855 PM |
430 | protocols_cb_failure: |
431 | genlmsg_cancel(skb, data); | |
d15c345f PM |
432 | return ret_val; |
433 | } | |
434 | ||
fd385855 PM |
435 | /** |
436 | * netlbl_mgmt_protocols - Handle a PROTOCOLS message | |
437 | * @skb: the NETLINK buffer | |
438 | * @cb: the NETLINK callback | |
439 | * | |
440 | * Description: | |
441 | * Process a user generated PROTOCOLS message and respond accordingly. | |
442 | * | |
443 | */ | |
444 | static int netlbl_mgmt_protocols(struct sk_buff *skb, | |
445 | struct netlink_callback *cb) | |
446 | { | |
447 | u32 protos_sent = cb->args[0]; | |
448 | ||
449 | if (protos_sent == 0) { | |
450 | if (netlbl_mgmt_protocols_cb(skb, | |
451 | cb, | |
452 | NETLBL_NLTYPE_UNLABELED) < 0) | |
453 | goto protocols_return; | |
454 | protos_sent++; | |
455 | } | |
456 | if (protos_sent == 1) { | |
457 | if (netlbl_mgmt_protocols_cb(skb, | |
458 | cb, | |
459 | NETLBL_NLTYPE_CIPSOV4) < 0) | |
460 | goto protocols_return; | |
461 | protos_sent++; | |
462 | } | |
463 | ||
464 | protocols_return: | |
465 | cb->args[0] = protos_sent; | |
466 | return skb->len; | |
467 | } | |
468 | ||
d15c345f PM |
469 | /** |
470 | * netlbl_mgmt_version - Handle a VERSION message | |
471 | * @skb: the NETLINK buffer | |
472 | * @info: the Generic NETLINK info block | |
473 | * | |
474 | * Description: | |
475 | * Process a user generated VERSION message and respond accordingly. Returns | |
476 | * zero on success, negative values on failure. | |
477 | * | |
478 | */ | |
479 | static int netlbl_mgmt_version(struct sk_buff *skb, struct genl_info *info) | |
480 | { | |
481 | int ret_val = -ENOMEM; | |
482 | struct sk_buff *ans_skb = NULL; | |
fd385855 | 483 | void *data; |
d15c345f | 484 | |
339bf98f | 485 | ans_skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
d15c345f | 486 | if (ans_skb == NULL) |
fd385855 | 487 | return -ENOMEM; |
17c157c8 TG |
488 | data = genlmsg_put_reply(ans_skb, info, &netlbl_mgmt_gnl_family, |
489 | 0, NLBL_MGMT_C_VERSION); | |
fd385855 | 490 | if (data == NULL) |
d15c345f PM |
491 | goto version_failure; |
492 | ||
fd385855 PM |
493 | ret_val = nla_put_u32(ans_skb, |
494 | NLBL_MGMT_A_VERSION, | |
495 | NETLBL_PROTO_VERSION); | |
d15c345f PM |
496 | if (ret_val != 0) |
497 | goto version_failure; | |
498 | ||
fd385855 PM |
499 | genlmsg_end(ans_skb, data); |
500 | ||
81878d27 | 501 | ret_val = genlmsg_reply(ans_skb, info); |
d15c345f PM |
502 | if (ret_val != 0) |
503 | goto version_failure; | |
d15c345f PM |
504 | return 0; |
505 | ||
506 | version_failure: | |
507 | kfree_skb(ans_skb); | |
d15c345f PM |
508 | return ret_val; |
509 | } | |
510 | ||
511 | ||
512 | /* | |
513 | * NetLabel Generic NETLINK Command Definitions | |
514 | */ | |
515 | ||
516 | static struct genl_ops netlbl_mgmt_genl_c_add = { | |
517 | .cmd = NLBL_MGMT_C_ADD, | |
fd385855 PM |
518 | .flags = GENL_ADMIN_PERM, |
519 | .policy = netlbl_mgmt_genl_policy, | |
d15c345f PM |
520 | .doit = netlbl_mgmt_add, |
521 | .dumpit = NULL, | |
522 | }; | |
523 | ||
524 | static struct genl_ops netlbl_mgmt_genl_c_remove = { | |
525 | .cmd = NLBL_MGMT_C_REMOVE, | |
fd385855 PM |
526 | .flags = GENL_ADMIN_PERM, |
527 | .policy = netlbl_mgmt_genl_policy, | |
d15c345f PM |
528 | .doit = netlbl_mgmt_remove, |
529 | .dumpit = NULL, | |
530 | }; | |
531 | ||
fd385855 PM |
532 | static struct genl_ops netlbl_mgmt_genl_c_listall = { |
533 | .cmd = NLBL_MGMT_C_LISTALL, | |
d15c345f | 534 | .flags = 0, |
fd385855 PM |
535 | .policy = netlbl_mgmt_genl_policy, |
536 | .doit = NULL, | |
537 | .dumpit = netlbl_mgmt_listall, | |
d15c345f PM |
538 | }; |
539 | ||
540 | static struct genl_ops netlbl_mgmt_genl_c_adddef = { | |
541 | .cmd = NLBL_MGMT_C_ADDDEF, | |
fd385855 PM |
542 | .flags = GENL_ADMIN_PERM, |
543 | .policy = netlbl_mgmt_genl_policy, | |
d15c345f PM |
544 | .doit = netlbl_mgmt_adddef, |
545 | .dumpit = NULL, | |
546 | }; | |
547 | ||
548 | static struct genl_ops netlbl_mgmt_genl_c_removedef = { | |
549 | .cmd = NLBL_MGMT_C_REMOVEDEF, | |
fd385855 PM |
550 | .flags = GENL_ADMIN_PERM, |
551 | .policy = netlbl_mgmt_genl_policy, | |
d15c345f PM |
552 | .doit = netlbl_mgmt_removedef, |
553 | .dumpit = NULL, | |
554 | }; | |
555 | ||
556 | static struct genl_ops netlbl_mgmt_genl_c_listdef = { | |
557 | .cmd = NLBL_MGMT_C_LISTDEF, | |
558 | .flags = 0, | |
fd385855 | 559 | .policy = netlbl_mgmt_genl_policy, |
d15c345f PM |
560 | .doit = netlbl_mgmt_listdef, |
561 | .dumpit = NULL, | |
562 | }; | |
563 | ||
fd385855 PM |
564 | static struct genl_ops netlbl_mgmt_genl_c_protocols = { |
565 | .cmd = NLBL_MGMT_C_PROTOCOLS, | |
d15c345f | 566 | .flags = 0, |
fd385855 PM |
567 | .policy = netlbl_mgmt_genl_policy, |
568 | .doit = NULL, | |
569 | .dumpit = netlbl_mgmt_protocols, | |
d15c345f PM |
570 | }; |
571 | ||
572 | static struct genl_ops netlbl_mgmt_genl_c_version = { | |
573 | .cmd = NLBL_MGMT_C_VERSION, | |
574 | .flags = 0, | |
fd385855 | 575 | .policy = netlbl_mgmt_genl_policy, |
d15c345f PM |
576 | .doit = netlbl_mgmt_version, |
577 | .dumpit = NULL, | |
578 | }; | |
579 | ||
580 | /* | |
581 | * NetLabel Generic NETLINK Protocol Functions | |
582 | */ | |
583 | ||
584 | /** | |
585 | * netlbl_mgmt_genl_init - Register the NetLabel management component | |
586 | * | |
587 | * Description: | |
588 | * Register the NetLabel management component with the Generic NETLINK | |
589 | * mechanism. Returns zero on success, negative values on failure. | |
590 | * | |
591 | */ | |
592 | int netlbl_mgmt_genl_init(void) | |
593 | { | |
594 | int ret_val; | |
595 | ||
596 | ret_val = genl_register_family(&netlbl_mgmt_gnl_family); | |
597 | if (ret_val != 0) | |
598 | return ret_val; | |
599 | ||
600 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
601 | &netlbl_mgmt_genl_c_add); | |
602 | if (ret_val != 0) | |
603 | return ret_val; | |
604 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
605 | &netlbl_mgmt_genl_c_remove); | |
606 | if (ret_val != 0) | |
607 | return ret_val; | |
608 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
fd385855 | 609 | &netlbl_mgmt_genl_c_listall); |
d15c345f PM |
610 | if (ret_val != 0) |
611 | return ret_val; | |
612 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
613 | &netlbl_mgmt_genl_c_adddef); | |
614 | if (ret_val != 0) | |
615 | return ret_val; | |
616 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
617 | &netlbl_mgmt_genl_c_removedef); | |
618 | if (ret_val != 0) | |
619 | return ret_val; | |
620 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
621 | &netlbl_mgmt_genl_c_listdef); | |
622 | if (ret_val != 0) | |
623 | return ret_val; | |
624 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
fd385855 | 625 | &netlbl_mgmt_genl_c_protocols); |
d15c345f PM |
626 | if (ret_val != 0) |
627 | return ret_val; | |
628 | ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, | |
629 | &netlbl_mgmt_genl_c_version); | |
630 | if (ret_val != 0) | |
631 | return ret_val; | |
632 | ||
633 | return 0; | |
634 | } |