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1 | /* | |
2 | * NetLabel System | |
3 | * | |
4 | * The NetLabel system manages static and dynamic label mappings for network | |
5 | * protocols such as CIPSO and RIPSO. | |
6 | * | |
7 | * Author: Paul Moore <paul@paul-moore.com> | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
12 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008 | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
22 | * the GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
26 | * | |
27 | */ | |
28 | ||
29 | #ifndef _NETLABEL_H | |
30 | #define _NETLABEL_H | |
31 | ||
32 | #include <linux/types.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/net.h> | |
35 | #include <linux/skbuff.h> | |
36 | #include <linux/in.h> | |
37 | #include <linux/in6.h> | |
38 | #include <net/netlink.h> | |
39 | #include <net/request_sock.h> | |
40 | #include <linux/refcount.h> | |
41 | ||
42 | struct cipso_v4_doi; | |
43 | struct calipso_doi; | |
44 | ||
45 | /* | |
46 | * NetLabel - A management interface for maintaining network packet label | |
47 | * mapping tables for explicit packet labling protocols. | |
48 | * | |
49 | * Network protocols such as CIPSO and RIPSO require a label translation layer | |
50 | * to convert the label on the packet into something meaningful on the host | |
51 | * machine. In the current Linux implementation these mapping tables live | |
52 | * inside the kernel; NetLabel provides a mechanism for user space applications | |
53 | * to manage these mapping tables. | |
54 | * | |
55 | * NetLabel makes use of the Generic NETLINK mechanism as a transport layer to | |
56 | * send messages between kernel and user space. The general format of a | |
57 | * NetLabel message is shown below: | |
58 | * | |
59 | * +-----------------+-------------------+--------- --- -- - | |
60 | * | struct nlmsghdr | struct genlmsghdr | payload | |
61 | * +-----------------+-------------------+--------- --- -- - | |
62 | * | |
63 | * The 'nlmsghdr' and 'genlmsghdr' structs should be dealt with like normal. | |
64 | * The payload is dependent on the subsystem specified in the | |
65 | * 'nlmsghdr->nlmsg_type' and should be defined below, supporting functions | |
66 | * should be defined in the corresponding net/netlabel/netlabel_<subsys>.h|c | |
67 | * file. All of the fields in the NetLabel payload are NETLINK attributes, see | |
68 | * the include/net/netlink.h file for more information on NETLINK attributes. | |
69 | * | |
70 | */ | |
71 | ||
72 | /* | |
73 | * NetLabel NETLINK protocol | |
74 | */ | |
75 | ||
76 | /* NetLabel NETLINK protocol version | |
77 | * 1: initial version | |
78 | * 2: added static labels for unlabeled connections | |
79 | * 3: network selectors added to the NetLabel/LSM domain mapping and the | |
80 | * CIPSO_V4_MAP_LOCAL CIPSO mapping was added | |
81 | */ | |
82 | #define NETLBL_PROTO_VERSION 3 | |
83 | ||
84 | /* NetLabel NETLINK types/families */ | |
85 | #define NETLBL_NLTYPE_NONE 0 | |
86 | #define NETLBL_NLTYPE_MGMT 1 | |
87 | #define NETLBL_NLTYPE_MGMT_NAME "NLBL_MGMT" | |
88 | #define NETLBL_NLTYPE_RIPSO 2 | |
89 | #define NETLBL_NLTYPE_RIPSO_NAME "NLBL_RIPSO" | |
90 | #define NETLBL_NLTYPE_CIPSOV4 3 | |
91 | #define NETLBL_NLTYPE_CIPSOV4_NAME "NLBL_CIPSOv4" | |
92 | #define NETLBL_NLTYPE_CIPSOV6 4 | |
93 | #define NETLBL_NLTYPE_CIPSOV6_NAME "NLBL_CIPSOv6" | |
94 | #define NETLBL_NLTYPE_UNLABELED 5 | |
95 | #define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL" | |
96 | #define NETLBL_NLTYPE_ADDRSELECT 6 | |
97 | #define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL" | |
98 | #define NETLBL_NLTYPE_CALIPSO 7 | |
99 | #define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO" | |
100 | ||
101 | /* | |
102 | * NetLabel - Kernel API for accessing the network packet label mappings. | |
103 | * | |
104 | * The following functions are provided for use by other kernel modules, | |
105 | * specifically kernel LSM modules, to provide a consistent, transparent API | |
106 | * for dealing with explicit packet labeling protocols such as CIPSO and | |
107 | * RIPSO. The functions defined here are implemented in the | |
108 | * net/netlabel/netlabel_kapi.c file. | |
109 | * | |
110 | */ | |
111 | ||
112 | /* NetLabel audit information */ | |
113 | struct netlbl_audit { | |
114 | u32 secid; | |
115 | kuid_t loginuid; | |
116 | unsigned int sessionid; | |
117 | }; | |
118 | ||
119 | /* | |
120 | * LSM security attributes | |
121 | */ | |
122 | ||
123 | /** | |
124 | * struct netlbl_lsm_cache - NetLabel LSM security attribute cache | |
125 | * @refcount: atomic reference counter | |
126 | * @free: LSM supplied function to free the cache data | |
127 | * @data: LSM supplied cache data | |
128 | * | |
129 | * Description: | |
130 | * This structure is provided for LSMs which wish to make use of the NetLabel | |
131 | * caching mechanism to store LSM specific data/attributes in the NetLabel | |
132 | * cache. If the LSM has to perform a lot of translation from the NetLabel | |
133 | * security attributes into it's own internal representation then the cache | |
134 | * mechanism can provide a way to eliminate some or all of that translation | |
135 | * overhead on a cache hit. | |
136 | * | |
137 | */ | |
138 | struct netlbl_lsm_cache { | |
139 | refcount_t refcount; | |
140 | void (*free) (const void *data); | |
141 | void *data; | |
142 | }; | |
143 | ||
144 | /** | |
145 | * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap | |
146 | * @startbit: the value of the lowest order bit in the bitmap | |
147 | * @bitmap: the category bitmap | |
148 | * @next: pointer to the next bitmap "node" or NULL | |
149 | * | |
150 | * Description: | |
151 | * This structure is used to represent category bitmaps. Due to the large | |
152 | * number of categories supported by most labeling protocols it is not | |
153 | * practical to transfer a full bitmap internally so NetLabel adopts a sparse | |
154 | * bitmap structure modeled after SELinux's ebitmap structure. | |
155 | * The catmap bitmap field MUST be a power of two in length and large | |
156 | * enough to hold at least 240 bits. Special care (i.e. check the code!) | |
157 | * should be used when changing these values as the LSM implementation | |
158 | * probably has functions which rely on the sizes of these types to speed | |
159 | * processing. | |
160 | * | |
161 | */ | |
162 | #define NETLBL_CATMAP_MAPTYPE u64 | |
163 | #define NETLBL_CATMAP_MAPCNT 4 | |
164 | #define NETLBL_CATMAP_MAPSIZE (sizeof(NETLBL_CATMAP_MAPTYPE) * 8) | |
165 | #define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \ | |
166 | NETLBL_CATMAP_MAPCNT) | |
167 | #define NETLBL_CATMAP_BIT (NETLBL_CATMAP_MAPTYPE)0x01 | |
168 | struct netlbl_lsm_catmap { | |
169 | u32 startbit; | |
170 | NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT]; | |
171 | struct netlbl_lsm_catmap *next; | |
172 | }; | |
173 | ||
174 | /** | |
175 | * struct netlbl_lsm_secattr - NetLabel LSM security attributes | |
176 | * @flags: indicate structure attributes, see NETLBL_SECATTR_* | |
177 | * @type: indicate the NLTYPE of the attributes | |
178 | * @domain: the NetLabel LSM domain | |
179 | * @cache: NetLabel LSM specific cache | |
180 | * @attr.mls: MLS sensitivity label | |
181 | * @attr.mls.cat: MLS category bitmap | |
182 | * @attr.mls.lvl: MLS sensitivity level | |
183 | * @attr.secid: LSM specific secid token | |
184 | * | |
185 | * Description: | |
186 | * This structure is used to pass security attributes between NetLabel and the | |
187 | * LSM modules. The flags field is used to specify which fields within the | |
188 | * struct are valid and valid values can be created by bitwise OR'ing the | |
189 | * NETLBL_SECATTR_* defines. The domain field is typically set by the LSM to | |
190 | * specify domain specific configuration settings and is not usually used by | |
191 | * NetLabel itself when returning security attributes to the LSM. | |
192 | * | |
193 | */ | |
194 | struct netlbl_lsm_secattr { | |
195 | u32 flags; | |
196 | /* bitmap values for 'flags' */ | |
197 | #define NETLBL_SECATTR_NONE 0x00000000 | |
198 | #define NETLBL_SECATTR_DOMAIN 0x00000001 | |
199 | #define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \ | |
200 | NETLBL_SECATTR_FREE_DOMAIN) | |
201 | #define NETLBL_SECATTR_CACHE 0x00000002 | |
202 | #define NETLBL_SECATTR_MLS_LVL 0x00000004 | |
203 | #define NETLBL_SECATTR_MLS_CAT 0x00000008 | |
204 | #define NETLBL_SECATTR_SECID 0x00000010 | |
205 | /* bitmap meta-values for 'flags' */ | |
206 | #define NETLBL_SECATTR_FREE_DOMAIN 0x01000000 | |
207 | #define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \ | |
208 | NETLBL_SECATTR_MLS_CAT | \ | |
209 | NETLBL_SECATTR_SECID) | |
210 | u32 type; | |
211 | char *domain; | |
212 | struct netlbl_lsm_cache *cache; | |
213 | struct { | |
214 | struct { | |
215 | struct netlbl_lsm_catmap *cat; | |
216 | u32 lvl; | |
217 | } mls; | |
218 | u32 secid; | |
219 | } attr; | |
220 | }; | |
221 | ||
222 | /** | |
223 | * struct netlbl_calipso_ops - NetLabel CALIPSO operations | |
224 | * @doi_add: add a CALIPSO DOI | |
225 | * @doi_free: free a CALIPSO DOI | |
226 | * @doi_getdef: returns a reference to a DOI | |
227 | * @doi_putdef: releases a reference of a DOI | |
228 | * @doi_walk: enumerate the DOI list | |
229 | * @sock_getattr: retrieve the socket's attr | |
230 | * @sock_setattr: set the socket's attr | |
231 | * @sock_delattr: remove the socket's attr | |
232 | * @req_setattr: set the req socket's attr | |
233 | * @req_delattr: remove the req socket's attr | |
234 | * @opt_getattr: retrieve attr from memory block | |
235 | * @skbuff_optptr: find option in packet | |
236 | * @skbuff_setattr: set the skbuff's attr | |
237 | * @skbuff_delattr: remove the skbuff's attr | |
238 | * @cache_invalidate: invalidate cache | |
239 | * @cache_add: add cache entry | |
240 | * | |
241 | * Description: | |
242 | * This structure is filled out by the CALIPSO engine and passed | |
243 | * to the NetLabel core via a call to netlbl_calipso_ops_register(). | |
244 | * It enables the CALIPSO engine (and hence IPv6) to be compiled | |
245 | * as a module. | |
246 | */ | |
247 | struct netlbl_calipso_ops { | |
248 | int (*doi_add)(struct calipso_doi *doi_def, | |
249 | struct netlbl_audit *audit_info); | |
250 | void (*doi_free)(struct calipso_doi *doi_def); | |
251 | int (*doi_remove)(u32 doi, struct netlbl_audit *audit_info); | |
252 | struct calipso_doi *(*doi_getdef)(u32 doi); | |
253 | void (*doi_putdef)(struct calipso_doi *doi_def); | |
254 | int (*doi_walk)(u32 *skip_cnt, | |
255 | int (*callback)(struct calipso_doi *doi_def, void *arg), | |
256 | void *cb_arg); | |
257 | int (*sock_getattr)(struct sock *sk, | |
258 | struct netlbl_lsm_secattr *secattr); | |
259 | int (*sock_setattr)(struct sock *sk, | |
260 | const struct calipso_doi *doi_def, | |
261 | const struct netlbl_lsm_secattr *secattr); | |
262 | void (*sock_delattr)(struct sock *sk); | |
263 | int (*req_setattr)(struct request_sock *req, | |
264 | const struct calipso_doi *doi_def, | |
265 | const struct netlbl_lsm_secattr *secattr); | |
266 | void (*req_delattr)(struct request_sock *req); | |
267 | int (*opt_getattr)(const unsigned char *calipso, | |
268 | struct netlbl_lsm_secattr *secattr); | |
269 | unsigned char *(*skbuff_optptr)(const struct sk_buff *skb); | |
270 | int (*skbuff_setattr)(struct sk_buff *skb, | |
271 | const struct calipso_doi *doi_def, | |
272 | const struct netlbl_lsm_secattr *secattr); | |
273 | int (*skbuff_delattr)(struct sk_buff *skb); | |
274 | void (*cache_invalidate)(void); | |
275 | int (*cache_add)(const unsigned char *calipso_ptr, | |
276 | const struct netlbl_lsm_secattr *secattr); | |
277 | }; | |
278 | ||
279 | /* | |
280 | * LSM security attribute operations (inline) | |
281 | */ | |
282 | ||
283 | /** | |
284 | * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache | |
285 | * @flags: the memory allocation flags | |
286 | * | |
287 | * Description: | |
288 | * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer | |
289 | * on success, NULL on failure. | |
290 | * | |
291 | */ | |
292 | static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags) | |
293 | { | |
294 | struct netlbl_lsm_cache *cache; | |
295 | ||
296 | cache = kzalloc(sizeof(*cache), flags); | |
297 | if (cache) | |
298 | refcount_set(&cache->refcount, 1); | |
299 | return cache; | |
300 | } | |
301 | ||
302 | /** | |
303 | * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct | |
304 | * @cache: the struct to free | |
305 | * | |
306 | * Description: | |
307 | * Frees @secattr including all of the internal buffers. | |
308 | * | |
309 | */ | |
310 | static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache) | |
311 | { | |
312 | if (!refcount_dec_and_test(&cache->refcount)) | |
313 | return; | |
314 | ||
315 | if (cache->free) | |
316 | cache->free(cache->data); | |
317 | kfree(cache); | |
318 | } | |
319 | ||
320 | /** | |
321 | * netlbl_catmap_alloc - Allocate a LSM secattr catmap | |
322 | * @flags: memory allocation flags | |
323 | * | |
324 | * Description: | |
325 | * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL | |
326 | * on failure. | |
327 | * | |
328 | */ | |
329 | static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags) | |
330 | { | |
331 | return kzalloc(sizeof(struct netlbl_lsm_catmap), flags); | |
332 | } | |
333 | ||
334 | /** | |
335 | * netlbl_catmap_free - Free a LSM secattr catmap | |
336 | * @catmap: the category bitmap | |
337 | * | |
338 | * Description: | |
339 | * Free a LSM secattr catmap. | |
340 | * | |
341 | */ | |
342 | static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap) | |
343 | { | |
344 | struct netlbl_lsm_catmap *iter; | |
345 | ||
346 | while (catmap) { | |
347 | iter = catmap; | |
348 | catmap = catmap->next; | |
349 | kfree(iter); | |
350 | } | |
351 | } | |
352 | ||
353 | /** | |
354 | * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct | |
355 | * @secattr: the struct to initialize | |
356 | * | |
357 | * Description: | |
358 | * Initialize an already allocated netlbl_lsm_secattr struct. | |
359 | * | |
360 | */ | |
361 | static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr) | |
362 | { | |
363 | memset(secattr, 0, sizeof(*secattr)); | |
364 | } | |
365 | ||
366 | /** | |
367 | * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct | |
368 | * @secattr: the struct to clear | |
369 | * | |
370 | * Description: | |
371 | * Destroys the @secattr struct, including freeing all of the internal buffers. | |
372 | * The struct must be reset with a call to netlbl_secattr_init() before reuse. | |
373 | * | |
374 | */ | |
375 | static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr) | |
376 | { | |
377 | if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN) | |
378 | kfree(secattr->domain); | |
379 | if (secattr->flags & NETLBL_SECATTR_CACHE) | |
380 | netlbl_secattr_cache_free(secattr->cache); | |
381 | if (secattr->flags & NETLBL_SECATTR_MLS_CAT) | |
382 | netlbl_catmap_free(secattr->attr.mls.cat); | |
383 | } | |
384 | ||
385 | /** | |
386 | * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct | |
387 | * @flags: the memory allocation flags | |
388 | * | |
389 | * Description: | |
390 | * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid | |
391 | * pointer on success, or NULL on failure. | |
392 | * | |
393 | */ | |
394 | static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags) | |
395 | { | |
396 | return kzalloc(sizeof(struct netlbl_lsm_secattr), flags); | |
397 | } | |
398 | ||
399 | /** | |
400 | * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct | |
401 | * @secattr: the struct to free | |
402 | * | |
403 | * Description: | |
404 | * Frees @secattr including all of the internal buffers. | |
405 | * | |
406 | */ | |
407 | static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr) | |
408 | { | |
409 | netlbl_secattr_destroy(secattr); | |
410 | kfree(secattr); | |
411 | } | |
412 | ||
413 | #ifdef CONFIG_NETLABEL | |
414 | /* | |
415 | * LSM configuration operations | |
416 | */ | |
417 | int netlbl_cfg_map_del(const char *domain, | |
418 | u16 family, | |
419 | const void *addr, | |
420 | const void *mask, | |
421 | struct netlbl_audit *audit_info); | |
422 | int netlbl_cfg_unlbl_map_add(const char *domain, | |
423 | u16 family, | |
424 | const void *addr, | |
425 | const void *mask, | |
426 | struct netlbl_audit *audit_info); | |
427 | int netlbl_cfg_unlbl_static_add(struct net *net, | |
428 | const char *dev_name, | |
429 | const void *addr, | |
430 | const void *mask, | |
431 | u16 family, | |
432 | u32 secid, | |
433 | struct netlbl_audit *audit_info); | |
434 | int netlbl_cfg_unlbl_static_del(struct net *net, | |
435 | const char *dev_name, | |
436 | const void *addr, | |
437 | const void *mask, | |
438 | u16 family, | |
439 | struct netlbl_audit *audit_info); | |
440 | int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, | |
441 | struct netlbl_audit *audit_info); | |
442 | void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info); | |
443 | int netlbl_cfg_cipsov4_map_add(u32 doi, | |
444 | const char *domain, | |
445 | const struct in_addr *addr, | |
446 | const struct in_addr *mask, | |
447 | struct netlbl_audit *audit_info); | |
448 | int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, | |
449 | struct netlbl_audit *audit_info); | |
450 | void netlbl_cfg_calipso_del(u32 doi, struct netlbl_audit *audit_info); | |
451 | int netlbl_cfg_calipso_map_add(u32 doi, | |
452 | const char *domain, | |
453 | const struct in6_addr *addr, | |
454 | const struct in6_addr *mask, | |
455 | struct netlbl_audit *audit_info); | |
456 | /* | |
457 | * LSM security attribute operations | |
458 | */ | |
459 | int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset); | |
460 | int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset); | |
461 | int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, | |
462 | u32 *offset, | |
463 | unsigned long *bitmap); | |
464 | int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, | |
465 | u32 bit, | |
466 | gfp_t flags); | |
467 | int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, | |
468 | u32 start, | |
469 | u32 end, | |
470 | gfp_t flags); | |
471 | int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, | |
472 | u32 offset, | |
473 | unsigned long bitmap, | |
474 | gfp_t flags); | |
475 | ||
476 | /* Bitmap functions | |
477 | */ | |
478 | int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len, | |
479 | u32 offset, u8 state); | |
480 | void netlbl_bitmap_setbit(unsigned char *bitmap, u32 bit, u8 state); | |
481 | ||
482 | /* | |
483 | * LSM protocol operations (NetLabel LSM/kernel API) | |
484 | */ | |
485 | int netlbl_enabled(void); | |
486 | int netlbl_sock_setattr(struct sock *sk, | |
487 | u16 family, | |
488 | const struct netlbl_lsm_secattr *secattr); | |
489 | void netlbl_sock_delattr(struct sock *sk); | |
490 | int netlbl_sock_getattr(struct sock *sk, | |
491 | struct netlbl_lsm_secattr *secattr); | |
492 | int netlbl_conn_setattr(struct sock *sk, | |
493 | struct sockaddr *addr, | |
494 | const struct netlbl_lsm_secattr *secattr); | |
495 | int netlbl_req_setattr(struct request_sock *req, | |
496 | const struct netlbl_lsm_secattr *secattr); | |
497 | void netlbl_req_delattr(struct request_sock *req); | |
498 | int netlbl_skbuff_setattr(struct sk_buff *skb, | |
499 | u16 family, | |
500 | const struct netlbl_lsm_secattr *secattr); | |
501 | int netlbl_skbuff_getattr(const struct sk_buff *skb, | |
502 | u16 family, | |
503 | struct netlbl_lsm_secattr *secattr); | |
504 | void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway); | |
505 | ||
506 | /* | |
507 | * LSM label mapping cache operations | |
508 | */ | |
509 | void netlbl_cache_invalidate(void); | |
510 | int netlbl_cache_add(const struct sk_buff *skb, u16 family, | |
511 | const struct netlbl_lsm_secattr *secattr); | |
512 | ||
513 | /* | |
514 | * Protocol engine operations | |
515 | */ | |
516 | struct audit_buffer *netlbl_audit_start(int type, | |
517 | struct netlbl_audit *audit_info); | |
518 | #else | |
519 | static inline int netlbl_cfg_map_del(const char *domain, | |
520 | u16 family, | |
521 | const void *addr, | |
522 | const void *mask, | |
523 | struct netlbl_audit *audit_info) | |
524 | { | |
525 | return -ENOSYS; | |
526 | } | |
527 | static inline int netlbl_cfg_unlbl_map_add(const char *domain, | |
528 | u16 family, | |
529 | void *addr, | |
530 | void *mask, | |
531 | struct netlbl_audit *audit_info) | |
532 | { | |
533 | return -ENOSYS; | |
534 | } | |
535 | static inline int netlbl_cfg_unlbl_static_add(struct net *net, | |
536 | const char *dev_name, | |
537 | const void *addr, | |
538 | const void *mask, | |
539 | u16 family, | |
540 | u32 secid, | |
541 | struct netlbl_audit *audit_info) | |
542 | { | |
543 | return -ENOSYS; | |
544 | } | |
545 | static inline int netlbl_cfg_unlbl_static_del(struct net *net, | |
546 | const char *dev_name, | |
547 | const void *addr, | |
548 | const void *mask, | |
549 | u16 family, | |
550 | struct netlbl_audit *audit_info) | |
551 | { | |
552 | return -ENOSYS; | |
553 | } | |
554 | static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, | |
555 | struct netlbl_audit *audit_info) | |
556 | { | |
557 | return -ENOSYS; | |
558 | } | |
559 | static inline void netlbl_cfg_cipsov4_del(u32 doi, | |
560 | struct netlbl_audit *audit_info) | |
561 | { | |
562 | return; | |
563 | } | |
564 | static inline int netlbl_cfg_cipsov4_map_add(u32 doi, | |
565 | const char *domain, | |
566 | const struct in_addr *addr, | |
567 | const struct in_addr *mask, | |
568 | struct netlbl_audit *audit_info) | |
569 | { | |
570 | return -ENOSYS; | |
571 | } | |
572 | static inline int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, | |
573 | struct netlbl_audit *audit_info) | |
574 | { | |
575 | return -ENOSYS; | |
576 | } | |
577 | static inline void netlbl_cfg_calipso_del(u32 doi, | |
578 | struct netlbl_audit *audit_info) | |
579 | { | |
580 | return; | |
581 | } | |
582 | static inline int netlbl_cfg_calipso_map_add(u32 doi, | |
583 | const char *domain, | |
584 | const struct in6_addr *addr, | |
585 | const struct in6_addr *mask, | |
586 | struct netlbl_audit *audit_info) | |
587 | { | |
588 | return -ENOSYS; | |
589 | } | |
590 | static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, | |
591 | u32 offset) | |
592 | { | |
593 | return -ENOENT; | |
594 | } | |
595 | static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, | |
596 | u32 offset) | |
597 | { | |
598 | return -ENOENT; | |
599 | } | |
600 | static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, | |
601 | u32 *offset, | |
602 | unsigned long *bitmap) | |
603 | { | |
604 | return 0; | |
605 | } | |
606 | static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, | |
607 | u32 bit, | |
608 | gfp_t flags) | |
609 | { | |
610 | return 0; | |
611 | } | |
612 | static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, | |
613 | u32 start, | |
614 | u32 end, | |
615 | gfp_t flags) | |
616 | { | |
617 | return 0; | |
618 | } | |
619 | static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, | |
620 | u32 offset, | |
621 | unsigned long bitmap, | |
622 | gfp_t flags) | |
623 | { | |
624 | return 0; | |
625 | } | |
626 | static inline int netlbl_enabled(void) | |
627 | { | |
628 | return 0; | |
629 | } | |
630 | static inline int netlbl_sock_setattr(struct sock *sk, | |
631 | u16 family, | |
632 | const struct netlbl_lsm_secattr *secattr) | |
633 | { | |
634 | return -ENOSYS; | |
635 | } | |
636 | static inline void netlbl_sock_delattr(struct sock *sk) | |
637 | { | |
638 | } | |
639 | static inline int netlbl_sock_getattr(struct sock *sk, | |
640 | struct netlbl_lsm_secattr *secattr) | |
641 | { | |
642 | return -ENOSYS; | |
643 | } | |
644 | static inline int netlbl_conn_setattr(struct sock *sk, | |
645 | struct sockaddr *addr, | |
646 | const struct netlbl_lsm_secattr *secattr) | |
647 | { | |
648 | return -ENOSYS; | |
649 | } | |
650 | static inline int netlbl_req_setattr(struct request_sock *req, | |
651 | const struct netlbl_lsm_secattr *secattr) | |
652 | { | |
653 | return -ENOSYS; | |
654 | } | |
655 | static inline void netlbl_req_delattr(struct request_sock *req) | |
656 | { | |
657 | return; | |
658 | } | |
659 | static inline int netlbl_skbuff_setattr(struct sk_buff *skb, | |
660 | u16 family, | |
661 | const struct netlbl_lsm_secattr *secattr) | |
662 | { | |
663 | return -ENOSYS; | |
664 | } | |
665 | static inline int netlbl_skbuff_getattr(const struct sk_buff *skb, | |
666 | u16 family, | |
667 | struct netlbl_lsm_secattr *secattr) | |
668 | { | |
669 | return -ENOSYS; | |
670 | } | |
671 | static inline void netlbl_skbuff_err(struct sk_buff *skb, | |
672 | int error, | |
673 | int gateway) | |
674 | { | |
675 | return; | |
676 | } | |
677 | static inline void netlbl_cache_invalidate(void) | |
678 | { | |
679 | return; | |
680 | } | |
681 | static inline int netlbl_cache_add(const struct sk_buff *skb, u16 family, | |
682 | const struct netlbl_lsm_secattr *secattr) | |
683 | { | |
684 | return 0; | |
685 | } | |
686 | static inline struct audit_buffer *netlbl_audit_start(int type, | |
687 | struct netlbl_audit *audit_info) | |
688 | { | |
689 | return NULL; | |
690 | } | |
691 | #endif /* CONFIG_NETLABEL */ | |
692 | ||
693 | const struct netlbl_calipso_ops * | |
694 | netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops); | |
695 | ||
696 | #endif /* _NETLABEL_H */ |