1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * NetLabel System |
4 | * |
5 | * The NetLabel system manages static and dynamic label mappings for network |
6 | * protocols such as CIPSO and RIPSO. |
7 | * |
8 | * Author: Paul Moore <paul@paul-moore.com> |
9 | */ |
10 | |
11 | /* |
12 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008 |
13 | */ |
14 | |
15 | #ifndef _NETLABEL_H |
16 | #define _NETLABEL_H |
17 | |
18 | #include <linux/types.h> |
19 | #include <linux/slab.h> |
20 | #include <linux/net.h> |
21 | #include <linux/skbuff.h> |
22 | #include <linux/in.h> |
23 | #include <linux/in6.h> |
24 | #include <net/netlink.h> |
25 | #include <net/request_sock.h> |
26 | #include <linux/refcount.h> |
27 | |
28 | struct cipso_v4_doi; |
29 | struct calipso_doi; |
30 | |
31 | /* |
32 | * NetLabel - A management interface for maintaining network packet label |
33 | * mapping tables for explicit packet labling protocols. |
34 | * |
35 | * Network protocols such as CIPSO and RIPSO require a label translation layer |
36 | * to convert the label on the packet into something meaningful on the host |
37 | * machine. In the current Linux implementation these mapping tables live |
38 | * inside the kernel; NetLabel provides a mechanism for user space applications |
39 | * to manage these mapping tables. |
40 | * |
41 | * NetLabel makes use of the Generic NETLINK mechanism as a transport layer to |
42 | * send messages between kernel and user space. The general format of a |
43 | * NetLabel message is shown below: |
44 | * |
45 | * +-----------------+-------------------+--------- --- -- - |
46 | * | struct nlmsghdr | struct genlmsghdr | payload |
47 | * +-----------------+-------------------+--------- --- -- - |
48 | * |
49 | * The 'nlmsghdr' and 'genlmsghdr' structs should be dealt with like normal. |
50 | * The payload is dependent on the subsystem specified in the |
51 | * 'nlmsghdr->nlmsg_type' and should be defined below, supporting functions |
52 | * should be defined in the corresponding net/netlabel/netlabel_<subsys>.h|c |
53 | * file. All of the fields in the NetLabel payload are NETLINK attributes, see |
54 | * the include/net/netlink.h file for more information on NETLINK attributes. |
55 | * |
56 | */ |
57 | |
58 | /* |
59 | * NetLabel NETLINK protocol |
60 | */ |
61 | |
62 | /* NetLabel NETLINK protocol version |
63 | * 1: initial version |
64 | * 2: added static labels for unlabeled connections |
65 | * 3: network selectors added to the NetLabel/LSM domain mapping and the |
66 | * CIPSO_V4_MAP_LOCAL CIPSO mapping was added |
67 | */ |
68 | #define NETLBL_PROTO_VERSION 3 |
69 | |
70 | /* NetLabel NETLINK types/families */ |
71 | #define NETLBL_NLTYPE_NONE 0 |
72 | #define NETLBL_NLTYPE_MGMT 1 |
73 | #define NETLBL_NLTYPE_MGMT_NAME "NLBL_MGMT" |
74 | #define NETLBL_NLTYPE_RIPSO 2 |
75 | #define NETLBL_NLTYPE_RIPSO_NAME "NLBL_RIPSO" |
76 | #define NETLBL_NLTYPE_CIPSOV4 3 |
77 | #define NETLBL_NLTYPE_CIPSOV4_NAME "NLBL_CIPSOv4" |
78 | #define NETLBL_NLTYPE_CIPSOV6 4 |
79 | #define NETLBL_NLTYPE_CIPSOV6_NAME "NLBL_CIPSOv6" |
80 | #define NETLBL_NLTYPE_UNLABELED 5 |
81 | #define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL" |
82 | #define NETLBL_NLTYPE_ADDRSELECT 6 |
83 | #define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL" |
84 | #define NETLBL_NLTYPE_CALIPSO 7 |
85 | #define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO" |
86 | |
87 | /* |
88 | * NetLabel - Kernel API for accessing the network packet label mappings. |
89 | * |
90 | * The following functions are provided for use by other kernel modules, |
91 | * specifically kernel LSM modules, to provide a consistent, transparent API |
92 | * for dealing with explicit packet labeling protocols such as CIPSO and |
93 | * RIPSO. The functions defined here are implemented in the |
94 | * net/netlabel/netlabel_kapi.c file. |
95 | * |
96 | */ |
97 | |
98 | /* NetLabel audit information */ |
99 | struct netlbl_audit { |
100 | u32 secid; |
101 | kuid_t loginuid; |
102 | unsigned int sessionid; |
103 | }; |
104 | |
105 | /* |
106 | * LSM security attributes |
107 | */ |
108 | |
109 | /** |
110 | * struct netlbl_lsm_cache - NetLabel LSM security attribute cache |
111 | * @refcount: atomic reference counter |
112 | * @free: LSM supplied function to free the cache data |
113 | * @data: LSM supplied cache data |
114 | * |
115 | * Description: |
116 | * This structure is provided for LSMs which wish to make use of the NetLabel |
117 | * caching mechanism to store LSM specific data/attributes in the NetLabel |
118 | * cache. If the LSM has to perform a lot of translation from the NetLabel |
119 | * security attributes into it's own internal representation then the cache |
120 | * mechanism can provide a way to eliminate some or all of that translation |
121 | * overhead on a cache hit. |
122 | * |
123 | */ |
124 | struct netlbl_lsm_cache { |
125 | refcount_t refcount; |
126 | void (*free) (const void *data); |
127 | void *data; |
128 | }; |
129 | |
130 | /** |
131 | * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap |
132 | * @startbit: the value of the lowest order bit in the bitmap |
133 | * @bitmap: the category bitmap |
134 | * @next: pointer to the next bitmap "node" or NULL |
135 | * |
136 | * Description: |
137 | * This structure is used to represent category bitmaps. Due to the large |
138 | * number of categories supported by most labeling protocols it is not |
139 | * practical to transfer a full bitmap internally so NetLabel adopts a sparse |
140 | * bitmap structure modeled after SELinux's ebitmap structure. |
141 | * The catmap bitmap field MUST be a power of two in length and large |
142 | * enough to hold at least 240 bits. Special care (i.e. check the code!) |
143 | * should be used when changing these values as the LSM implementation |
144 | * probably has functions which rely on the sizes of these types to speed |
145 | * processing. |
146 | * |
147 | */ |
148 | #define NETLBL_CATMAP_MAPTYPE u64 |
149 | #define NETLBL_CATMAP_MAPCNT 4 |
150 | #define NETLBL_CATMAP_MAPSIZE (sizeof(NETLBL_CATMAP_MAPTYPE) * 8) |
151 | #define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \ |
152 | NETLBL_CATMAP_MAPCNT) |
153 | #define NETLBL_CATMAP_BIT (NETLBL_CATMAP_MAPTYPE)0x01 |
154 | struct netlbl_lsm_catmap { |
155 | u32 startbit; |
156 | NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT]; |
157 | struct netlbl_lsm_catmap *next; |
158 | }; |
159 | |
160 | /** |
161 | * struct netlbl_lsm_secattr - NetLabel LSM security attributes |
162 | * @flags: indicate structure attributes, see NETLBL_SECATTR_* |
163 | * @type: indicate the NLTYPE of the attributes |
164 | * @domain: the NetLabel LSM domain |
165 | * @cache: NetLabel LSM specific cache |
166 | * @attr.mls: MLS sensitivity label |
167 | * @attr.mls.cat: MLS category bitmap |
168 | * @attr.mls.lvl: MLS sensitivity level |
169 | * @attr.secid: LSM specific secid token |
170 | * |
171 | * Description: |
172 | * This structure is used to pass security attributes between NetLabel and the |
173 | * LSM modules. The flags field is used to specify which fields within the |
174 | * struct are valid and valid values can be created by bitwise OR'ing the |
175 | * NETLBL_SECATTR_* defines. The domain field is typically set by the LSM to |
176 | * specify domain specific configuration settings and is not usually used by |
177 | * NetLabel itself when returning security attributes to the LSM. |
178 | * |
179 | */ |
180 | struct netlbl_lsm_secattr { |
181 | u32 flags; |
182 | /* bitmap values for 'flags' */ |
183 | #define NETLBL_SECATTR_NONE 0x00000000 |
184 | #define NETLBL_SECATTR_DOMAIN 0x00000001 |
185 | #define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \ |
186 | NETLBL_SECATTR_FREE_DOMAIN) |
187 | #define NETLBL_SECATTR_CACHE 0x00000002 |
188 | #define NETLBL_SECATTR_MLS_LVL 0x00000004 |
189 | #define NETLBL_SECATTR_MLS_CAT 0x00000008 |
190 | #define NETLBL_SECATTR_SECID 0x00000010 |
191 | /* bitmap meta-values for 'flags' */ |
192 | #define NETLBL_SECATTR_FREE_DOMAIN 0x01000000 |
193 | #define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \ |
194 | NETLBL_SECATTR_MLS_CAT | \ |
195 | NETLBL_SECATTR_SECID) |
196 | u32 type; |
197 | char *domain; |
198 | struct netlbl_lsm_cache *cache; |
199 | struct { |
200 | struct { |
201 | struct netlbl_lsm_catmap *cat; |
202 | u32 lvl; |
203 | } mls; |
204 | u32 secid; |
205 | } attr; |
206 | }; |
207 | |
208 | /** |
209 | * struct netlbl_calipso_ops - NetLabel CALIPSO operations |
210 | * @doi_add: add a CALIPSO DOI |
211 | * @doi_free: free a CALIPSO DOI |
212 | * @doi_getdef: returns a reference to a DOI |
213 | * @doi_putdef: releases a reference of a DOI |
214 | * @doi_walk: enumerate the DOI list |
215 | * @sock_getattr: retrieve the socket's attr |
216 | * @sock_setattr: set the socket's attr |
217 | * @sock_delattr: remove the socket's attr |
218 | * @req_setattr: set the req socket's attr |
219 | * @req_delattr: remove the req socket's attr |
220 | * @opt_getattr: retrieve attr from memory block |
221 | * @skbuff_optptr: find option in packet |
222 | * @skbuff_setattr: set the skbuff's attr |
223 | * @skbuff_delattr: remove the skbuff's attr |
224 | * @cache_invalidate: invalidate cache |
225 | * @cache_add: add cache entry |
226 | * |
227 | * Description: |
228 | * This structure is filled out by the CALIPSO engine and passed |
229 | * to the NetLabel core via a call to netlbl_calipso_ops_register(). |
230 | * It enables the CALIPSO engine (and hence IPv6) to be compiled |
231 | * as a module. |
232 | */ |
233 | struct netlbl_calipso_ops { |
234 | int (*doi_add)(struct calipso_doi *doi_def, |
235 | struct netlbl_audit *audit_info); |
236 | void (*doi_free)(struct calipso_doi *doi_def); |
237 | int (*doi_remove)(u32 doi, struct netlbl_audit *audit_info); |
238 | struct calipso_doi *(*doi_getdef)(u32 doi); |
239 | void (*doi_putdef)(struct calipso_doi *doi_def); |
240 | int (*doi_walk)(u32 *skip_cnt, |
241 | int (*callback)(struct calipso_doi *doi_def, void *arg), |
242 | void *cb_arg); |
243 | int (*sock_getattr)(struct sock *sk, |
244 | struct netlbl_lsm_secattr *secattr); |
245 | int (*sock_setattr)(struct sock *sk, |
246 | const struct calipso_doi *doi_def, |
247 | const struct netlbl_lsm_secattr *secattr); |
248 | void (*sock_delattr)(struct sock *sk); |
249 | int (*req_setattr)(struct request_sock *req, |
250 | const struct calipso_doi *doi_def, |
251 | const struct netlbl_lsm_secattr *secattr); |
252 | void (*req_delattr)(struct request_sock *req); |
253 | int (*opt_getattr)(const unsigned char *calipso, |
254 | struct netlbl_lsm_secattr *secattr); |
255 | unsigned char *(*skbuff_optptr)(const struct sk_buff *skb); |
256 | int (*skbuff_setattr)(struct sk_buff *skb, |
257 | const struct calipso_doi *doi_def, |
258 | const struct netlbl_lsm_secattr *secattr); |
259 | int (*skbuff_delattr)(struct sk_buff *skb); |
260 | void (*cache_invalidate)(void); |
261 | int (*cache_add)(const unsigned char *calipso_ptr, |
262 | const struct netlbl_lsm_secattr *secattr); |
263 | }; |
264 | |
265 | /* |
266 | * LSM security attribute operations (inline) |
267 | */ |
268 | |
269 | /** |
270 | * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache |
271 | * @flags: the memory allocation flags |
272 | * |
273 | * Description: |
274 | * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer |
275 | * on success, NULL on failure. |
276 | * |
277 | */ |
278 | static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags) |
279 | { |
280 | struct netlbl_lsm_cache *cache; |
281 | |
282 | cache = kzalloc(size: sizeof(*cache), flags); |
283 | if (cache) |
284 | refcount_set(r: &cache->refcount, n: 1); |
285 | return cache; |
286 | } |
287 | |
288 | /** |
289 | * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct |
290 | * @cache: the struct to free |
291 | * |
292 | * Description: |
293 | * Frees @secattr including all of the internal buffers. |
294 | * |
295 | */ |
296 | static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache) |
297 | { |
298 | if (!refcount_dec_and_test(r: &cache->refcount)) |
299 | return; |
300 | |
301 | if (cache->free) |
302 | cache->free(cache->data); |
303 | kfree(objp: cache); |
304 | } |
305 | |
306 | /** |
307 | * netlbl_catmap_alloc - Allocate a LSM secattr catmap |
308 | * @flags: memory allocation flags |
309 | * |
310 | * Description: |
311 | * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL |
312 | * on failure. |
313 | * |
314 | */ |
315 | static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags) |
316 | { |
317 | return kzalloc(size: sizeof(struct netlbl_lsm_catmap), flags); |
318 | } |
319 | |
320 | /** |
321 | * netlbl_catmap_free - Free a LSM secattr catmap |
322 | * @catmap: the category bitmap |
323 | * |
324 | * Description: |
325 | * Free a LSM secattr catmap. |
326 | * |
327 | */ |
328 | static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap) |
329 | { |
330 | struct netlbl_lsm_catmap *iter; |
331 | |
332 | while (catmap) { |
333 | iter = catmap; |
334 | catmap = catmap->next; |
335 | kfree(objp: iter); |
336 | } |
337 | } |
338 | |
339 | /** |
340 | * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct |
341 | * @secattr: the struct to initialize |
342 | * |
343 | * Description: |
344 | * Initialize an already allocated netlbl_lsm_secattr struct. |
345 | * |
346 | */ |
347 | static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr) |
348 | { |
349 | memset(secattr, 0, sizeof(*secattr)); |
350 | } |
351 | |
352 | /** |
353 | * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct |
354 | * @secattr: the struct to clear |
355 | * |
356 | * Description: |
357 | * Destroys the @secattr struct, including freeing all of the internal buffers. |
358 | * The struct must be reset with a call to netlbl_secattr_init() before reuse. |
359 | * |
360 | */ |
361 | static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr) |
362 | { |
363 | if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN) |
364 | kfree(objp: secattr->domain); |
365 | if (secattr->flags & NETLBL_SECATTR_CACHE) |
366 | netlbl_secattr_cache_free(cache: secattr->cache); |
367 | if (secattr->flags & NETLBL_SECATTR_MLS_CAT) |
368 | netlbl_catmap_free(catmap: secattr->attr.mls.cat); |
369 | } |
370 | |
371 | /** |
372 | * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct |
373 | * @flags: the memory allocation flags |
374 | * |
375 | * Description: |
376 | * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid |
377 | * pointer on success, or NULL on failure. |
378 | * |
379 | */ |
380 | static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags) |
381 | { |
382 | return kzalloc(size: sizeof(struct netlbl_lsm_secattr), flags); |
383 | } |
384 | |
385 | /** |
386 | * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct |
387 | * @secattr: the struct to free |
388 | * |
389 | * Description: |
390 | * Frees @secattr including all of the internal buffers. |
391 | * |
392 | */ |
393 | static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr) |
394 | { |
395 | netlbl_secattr_destroy(secattr); |
396 | kfree(objp: secattr); |
397 | } |
398 | |
399 | #ifdef CONFIG_NETLABEL |
400 | /* |
401 | * LSM configuration operations |
402 | */ |
403 | int netlbl_cfg_map_del(const char *domain, |
404 | u16 family, |
405 | const void *addr, |
406 | const void *mask, |
407 | struct netlbl_audit *audit_info); |
408 | int netlbl_cfg_unlbl_map_add(const char *domain, |
409 | u16 family, |
410 | const void *addr, |
411 | const void *mask, |
412 | struct netlbl_audit *audit_info); |
413 | int netlbl_cfg_unlbl_static_add(struct net *net, |
414 | const char *dev_name, |
415 | const void *addr, |
416 | const void *mask, |
417 | u16 family, |
418 | u32 secid, |
419 | struct netlbl_audit *audit_info); |
420 | int netlbl_cfg_unlbl_static_del(struct net *net, |
421 | const char *dev_name, |
422 | const void *addr, |
423 | const void *mask, |
424 | u16 family, |
425 | struct netlbl_audit *audit_info); |
426 | int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
427 | struct netlbl_audit *audit_info); |
428 | void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info); |
429 | int netlbl_cfg_cipsov4_map_add(u32 doi, |
430 | const char *domain, |
431 | const struct in_addr *addr, |
432 | const struct in_addr *mask, |
433 | struct netlbl_audit *audit_info); |
434 | int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, |
435 | struct netlbl_audit *audit_info); |
436 | void netlbl_cfg_calipso_del(u32 doi, struct netlbl_audit *audit_info); |
437 | int netlbl_cfg_calipso_map_add(u32 doi, |
438 | const char *domain, |
439 | const struct in6_addr *addr, |
440 | const struct in6_addr *mask, |
441 | struct netlbl_audit *audit_info); |
442 | /* |
443 | * LSM security attribute operations |
444 | */ |
445 | int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset); |
446 | int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset); |
447 | int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, |
448 | u32 *offset, |
449 | unsigned long *bitmap); |
450 | int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, |
451 | u32 bit, |
452 | gfp_t flags); |
453 | int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, |
454 | u32 start, |
455 | u32 end, |
456 | gfp_t flags); |
457 | int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, |
458 | u32 offset, |
459 | unsigned long bitmap, |
460 | gfp_t flags); |
461 | |
462 | /* Bitmap functions |
463 | */ |
464 | int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len, |
465 | u32 offset, u8 state); |
466 | void netlbl_bitmap_setbit(unsigned char *bitmap, u32 bit, u8 state); |
467 | |
468 | /* |
469 | * LSM protocol operations (NetLabel LSM/kernel API) |
470 | */ |
471 | int netlbl_enabled(void); |
472 | int netlbl_sock_setattr(struct sock *sk, |
473 | u16 family, |
474 | const struct netlbl_lsm_secattr *secattr); |
475 | void netlbl_sock_delattr(struct sock *sk); |
476 | int netlbl_sock_getattr(struct sock *sk, |
477 | struct netlbl_lsm_secattr *secattr); |
478 | int netlbl_conn_setattr(struct sock *sk, |
479 | struct sockaddr *addr, |
480 | const struct netlbl_lsm_secattr *secattr); |
481 | int netlbl_req_setattr(struct request_sock *req, |
482 | const struct netlbl_lsm_secattr *secattr); |
483 | void netlbl_req_delattr(struct request_sock *req); |
484 | int netlbl_skbuff_setattr(struct sk_buff *skb, |
485 | u16 family, |
486 | const struct netlbl_lsm_secattr *secattr); |
487 | int netlbl_skbuff_getattr(const struct sk_buff *skb, |
488 | u16 family, |
489 | struct netlbl_lsm_secattr *secattr); |
490 | void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway); |
491 | |
492 | /* |
493 | * LSM label mapping cache operations |
494 | */ |
495 | void netlbl_cache_invalidate(void); |
496 | int netlbl_cache_add(const struct sk_buff *skb, u16 family, |
497 | const struct netlbl_lsm_secattr *secattr); |
498 | |
499 | /* |
500 | * Protocol engine operations |
501 | */ |
502 | struct audit_buffer *netlbl_audit_start(int type, |
503 | struct netlbl_audit *audit_info); |
504 | #else |
505 | static inline int netlbl_cfg_map_del(const char *domain, |
506 | u16 family, |
507 | const void *addr, |
508 | const void *mask, |
509 | struct netlbl_audit *audit_info) |
510 | { |
511 | return -ENOSYS; |
512 | } |
513 | static inline int netlbl_cfg_unlbl_map_add(const char *domain, |
514 | u16 family, |
515 | void *addr, |
516 | void *mask, |
517 | struct netlbl_audit *audit_info) |
518 | { |
519 | return -ENOSYS; |
520 | } |
521 | static inline int netlbl_cfg_unlbl_static_add(struct net *net, |
522 | const char *dev_name, |
523 | const void *addr, |
524 | const void *mask, |
525 | u16 family, |
526 | u32 secid, |
527 | struct netlbl_audit *audit_info) |
528 | { |
529 | return -ENOSYS; |
530 | } |
531 | static inline int netlbl_cfg_unlbl_static_del(struct net *net, |
532 | const char *dev_name, |
533 | const void *addr, |
534 | const void *mask, |
535 | u16 family, |
536 | struct netlbl_audit *audit_info) |
537 | { |
538 | return -ENOSYS; |
539 | } |
540 | static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
541 | struct netlbl_audit *audit_info) |
542 | { |
543 | return -ENOSYS; |
544 | } |
545 | static inline void netlbl_cfg_cipsov4_del(u32 doi, |
546 | struct netlbl_audit *audit_info) |
547 | { |
548 | return; |
549 | } |
550 | static inline int netlbl_cfg_cipsov4_map_add(u32 doi, |
551 | const char *domain, |
552 | const struct in_addr *addr, |
553 | const struct in_addr *mask, |
554 | struct netlbl_audit *audit_info) |
555 | { |
556 | return -ENOSYS; |
557 | } |
558 | static inline int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, |
559 | struct netlbl_audit *audit_info) |
560 | { |
561 | return -ENOSYS; |
562 | } |
563 | static inline void netlbl_cfg_calipso_del(u32 doi, |
564 | struct netlbl_audit *audit_info) |
565 | { |
566 | return; |
567 | } |
568 | static inline int netlbl_cfg_calipso_map_add(u32 doi, |
569 | const char *domain, |
570 | const struct in6_addr *addr, |
571 | const struct in6_addr *mask, |
572 | struct netlbl_audit *audit_info) |
573 | { |
574 | return -ENOSYS; |
575 | } |
576 | static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, |
577 | u32 offset) |
578 | { |
579 | return -ENOENT; |
580 | } |
581 | static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, |
582 | u32 offset) |
583 | { |
584 | return -ENOENT; |
585 | } |
586 | static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, |
587 | u32 *offset, |
588 | unsigned long *bitmap) |
589 | { |
590 | return 0; |
591 | } |
592 | static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, |
593 | u32 bit, |
594 | gfp_t flags) |
595 | { |
596 | return 0; |
597 | } |
598 | static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, |
599 | u32 start, |
600 | u32 end, |
601 | gfp_t flags) |
602 | { |
603 | return 0; |
604 | } |
605 | static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, |
606 | u32 offset, |
607 | unsigned long bitmap, |
608 | gfp_t flags) |
609 | { |
610 | return 0; |
611 | } |
612 | static inline int netlbl_enabled(void) |
613 | { |
614 | return 0; |
615 | } |
616 | static inline int netlbl_sock_setattr(struct sock *sk, |
617 | u16 family, |
618 | const struct netlbl_lsm_secattr *secattr) |
619 | { |
620 | return -ENOSYS; |
621 | } |
622 | static inline void netlbl_sock_delattr(struct sock *sk) |
623 | { |
624 | } |
625 | static inline int netlbl_sock_getattr(struct sock *sk, |
626 | struct netlbl_lsm_secattr *secattr) |
627 | { |
628 | return -ENOSYS; |
629 | } |
630 | static inline int netlbl_conn_setattr(struct sock *sk, |
631 | struct sockaddr *addr, |
632 | const struct netlbl_lsm_secattr *secattr) |
633 | { |
634 | return -ENOSYS; |
635 | } |
636 | static inline int netlbl_req_setattr(struct request_sock *req, |
637 | const struct netlbl_lsm_secattr *secattr) |
638 | { |
639 | return -ENOSYS; |
640 | } |
641 | static inline void netlbl_req_delattr(struct request_sock *req) |
642 | { |
643 | return; |
644 | } |
645 | static inline int netlbl_skbuff_setattr(struct sk_buff *skb, |
646 | u16 family, |
647 | const struct netlbl_lsm_secattr *secattr) |
648 | { |
649 | return -ENOSYS; |
650 | } |
651 | static inline int netlbl_skbuff_getattr(const struct sk_buff *skb, |
652 | u16 family, |
653 | struct netlbl_lsm_secattr *secattr) |
654 | { |
655 | return -ENOSYS; |
656 | } |
657 | static inline void netlbl_skbuff_err(struct sk_buff *skb, |
658 | int error, |
659 | int gateway) |
660 | { |
661 | return; |
662 | } |
663 | static inline void netlbl_cache_invalidate(void) |
664 | { |
665 | return; |
666 | } |
667 | static inline int netlbl_cache_add(const struct sk_buff *skb, u16 family, |
668 | const struct netlbl_lsm_secattr *secattr) |
669 | { |
670 | return 0; |
671 | } |
672 | static inline struct audit_buffer *netlbl_audit_start(int type, |
673 | struct netlbl_audit *audit_info) |
674 | { |
675 | return NULL; |
676 | } |
677 | #endif /* CONFIG_NETLABEL */ |
678 | |
679 | const struct netlbl_calipso_ops * |
680 | netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops); |
681 | |
682 | #endif /* _NETLABEL_H */ |
683 | |