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1ccea77e | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
11a03f78 PM |
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 | * | |
82c21bfa | 8 | * Author: Paul Moore <paul@paul-moore.com> |
11a03f78 PM |
9 | */ |
10 | ||
11 | /* | |
63c41688 | 12 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008 |
11a03f78 PM |
13 | */ |
14 | ||
15 | #ifndef _NETLABEL_H | |
16 | #define _NETLABEL_H | |
17 | ||
18 | #include <linux/types.h> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
7a0e1d60 | 20 | #include <linux/net.h> |
11a03f78 | 21 | #include <linux/skbuff.h> |
6c2e8ac0 PM |
22 | #include <linux/in.h> |
23 | #include <linux/in6.h> | |
11a03f78 | 24 | #include <net/netlink.h> |
389fb800 | 25 | #include <net/request_sock.h> |
b4217b82 | 26 | #include <linux/refcount.h> |
11a03f78 | 27 | |
eda61d32 | 28 | struct cipso_v4_doi; |
cb72d382 | 29 | struct calipso_doi; |
eda61d32 | 30 | |
11a03f78 PM |
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 | |
fcd48280 PM |
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. | |
11a03f78 PM |
55 | * |
56 | */ | |
57 | ||
58 | /* | |
59 | * NetLabel NETLINK protocol | |
60 | */ | |
61 | ||
8cc44579 PM |
62 | /* NetLabel NETLINK protocol version |
63 | * 1: initial version | |
64 | * 2: added static labels for unlabeled connections | |
d91d4079 PM |
65 | * 3: network selectors added to the NetLabel/LSM domain mapping and the |
66 | * CIPSO_V4_MAP_LOCAL CIPSO mapping was added | |
8cc44579 | 67 | */ |
63c41688 | 68 | #define NETLBL_PROTO_VERSION 3 |
11a03f78 PM |
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" | |
63c41688 PM |
82 | #define NETLBL_NLTYPE_ADDRSELECT 6 |
83 | #define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL" | |
cb72d382 HD |
84 | #define NETLBL_NLTYPE_CALIPSO 7 |
85 | #define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO" | |
11a03f78 | 86 | |
11a03f78 PM |
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 | ||
95d4e6be PM |
98 | /* NetLabel audit information */ |
99 | struct netlbl_audit { | |
100 | u32 secid; | |
e1760bd5 | 101 | kuid_t loginuid; |
4440e854 | 102 | unsigned int sessionid; |
95d4e6be PM |
103 | }; |
104 | ||
16efd454 PM |
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 | */ | |
11a03f78 | 124 | struct netlbl_lsm_cache { |
b4217b82 | 125 | refcount_t refcount; |
11a03f78 PM |
126 | void (*free) (const void *data); |
127 | void *data; | |
128 | }; | |
16efd454 PM |
129 | |
130 | /** | |
4fbe63d1 | 131 | * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap |
16efd454 PM |
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 | |
02752760 PM |
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 | |
16efd454 PM |
145 | * processing. |
146 | * | |
147 | */ | |
02752760 | 148 | #define NETLBL_CATMAP_MAPCNT 4 |
23c5ae6d | 149 | #define NETLBL_CATMAP_MAPSIZE (sizeof(u64) * 8) |
02752760 PM |
150 | #define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \ |
151 | NETLBL_CATMAP_MAPCNT) | |
23c5ae6d | 152 | #define NETLBL_CATMAP_BIT ((u64)0x01) |
4fbe63d1 | 153 | struct netlbl_lsm_catmap { |
02752760 | 154 | u32 startbit; |
23c5ae6d | 155 | u64 bitmap[NETLBL_CATMAP_MAPCNT]; |
4fbe63d1 | 156 | struct netlbl_lsm_catmap *next; |
02752760 | 157 | }; |
16efd454 PM |
158 | |
159 | /** | |
160 | * struct netlbl_lsm_secattr - NetLabel LSM security attributes | |
00447872 | 161 | * @flags: indicate structure attributes, see NETLBL_SECATTR_* |
16efd454 PM |
162 | * @type: indicate the NLTYPE of the attributes |
163 | * @domain: the NetLabel LSM domain | |
164 | * @cache: NetLabel LSM specific cache | |
165 | * @attr.mls: MLS sensitivity label | |
166 | * @attr.mls.cat: MLS category bitmap | |
167 | * @attr.mls.lvl: MLS sensitivity level | |
168 | * @attr.secid: LSM specific secid token | |
169 | * | |
170 | * Description: | |
171 | * This structure is used to pass security attributes between NetLabel and the | |
172 | * LSM modules. The flags field is used to specify which fields within the | |
173 | * struct are valid and valid values can be created by bitwise OR'ing the | |
174 | * NETLBL_SECATTR_* defines. The domain field is typically set by the LSM to | |
175 | * specify domain specific configuration settings and is not usually used by | |
176 | * NetLabel itself when returning security attributes to the LSM. | |
177 | * | |
178 | */ | |
00447872 PM |
179 | struct netlbl_lsm_secattr { |
180 | u32 flags; | |
181 | /* bitmap values for 'flags' */ | |
701a90ba PM |
182 | #define NETLBL_SECATTR_NONE 0x00000000 |
183 | #define NETLBL_SECATTR_DOMAIN 0x00000001 | |
00447872 PM |
184 | #define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \ |
185 | NETLBL_SECATTR_FREE_DOMAIN) | |
701a90ba PM |
186 | #define NETLBL_SECATTR_CACHE 0x00000002 |
187 | #define NETLBL_SECATTR_MLS_LVL 0x00000004 | |
188 | #define NETLBL_SECATTR_MLS_CAT 0x00000008 | |
16efd454 | 189 | #define NETLBL_SECATTR_SECID 0x00000010 |
00447872 PM |
190 | /* bitmap meta-values for 'flags' */ |
191 | #define NETLBL_SECATTR_FREE_DOMAIN 0x01000000 | |
9534f71c | 192 | #define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \ |
16efd454 PM |
193 | NETLBL_SECATTR_MLS_CAT | \ |
194 | NETLBL_SECATTR_SECID) | |
16efd454 | 195 | u32 type; |
11a03f78 | 196 | char *domain; |
ffb733c6 | 197 | struct netlbl_lsm_cache *cache; |
8d75899d | 198 | struct { |
16efd454 | 199 | struct { |
4fbe63d1 | 200 | struct netlbl_lsm_catmap *cat; |
16efd454 PM |
201 | u32 lvl; |
202 | } mls; | |
203 | u32 secid; | |
204 | } attr; | |
11a03f78 PM |
205 | }; |
206 | ||
cb72d382 HD |
207 | /** |
208 | * struct netlbl_calipso_ops - NetLabel CALIPSO operations | |
209 | * @doi_add: add a CALIPSO DOI | |
210 | * @doi_free: free a CALIPSO DOI | |
a5e34490 HD |
211 | * @doi_getdef: returns a reference to a DOI |
212 | * @doi_putdef: releases a reference of a DOI | |
e1ce69df | 213 | * @doi_walk: enumerate the DOI list |
ceba1832 HD |
214 | * @sock_getattr: retrieve the socket's attr |
215 | * @sock_setattr: set the socket's attr | |
216 | * @sock_delattr: remove the socket's attr | |
e1adea92 HD |
217 | * @req_setattr: set the req socket's attr |
218 | * @req_delattr: remove the req socket's attr | |
2917f57b HD |
219 | * @opt_getattr: retrieve attr from memory block |
220 | * @skbuff_optptr: find option in packet | |
221 | * @skbuff_setattr: set the skbuff's attr | |
222 | * @skbuff_delattr: remove the skbuff's attr | |
4fee5242 HD |
223 | * @cache_invalidate: invalidate cache |
224 | * @cache_add: add cache entry | |
cb72d382 HD |
225 | * |
226 | * Description: | |
227 | * This structure is filled out by the CALIPSO engine and passed | |
228 | * to the NetLabel core via a call to netlbl_calipso_ops_register(). | |
229 | * It enables the CALIPSO engine (and hence IPv6) to be compiled | |
230 | * as a module. | |
231 | */ | |
232 | struct netlbl_calipso_ops { | |
233 | int (*doi_add)(struct calipso_doi *doi_def, | |
234 | struct netlbl_audit *audit_info); | |
235 | void (*doi_free)(struct calipso_doi *doi_def); | |
d7cce015 | 236 | int (*doi_remove)(u32 doi, struct netlbl_audit *audit_info); |
a5e34490 HD |
237 | struct calipso_doi *(*doi_getdef)(u32 doi); |
238 | void (*doi_putdef)(struct calipso_doi *doi_def); | |
e1ce69df HD |
239 | int (*doi_walk)(u32 *skip_cnt, |
240 | int (*callback)(struct calipso_doi *doi_def, void *arg), | |
241 | void *cb_arg); | |
ceba1832 HD |
242 | int (*sock_getattr)(struct sock *sk, |
243 | struct netlbl_lsm_secattr *secattr); | |
244 | int (*sock_setattr)(struct sock *sk, | |
245 | const struct calipso_doi *doi_def, | |
246 | const struct netlbl_lsm_secattr *secattr); | |
247 | void (*sock_delattr)(struct sock *sk); | |
e1adea92 HD |
248 | int (*req_setattr)(struct request_sock *req, |
249 | const struct calipso_doi *doi_def, | |
250 | const struct netlbl_lsm_secattr *secattr); | |
251 | void (*req_delattr)(struct request_sock *req); | |
2917f57b HD |
252 | int (*opt_getattr)(const unsigned char *calipso, |
253 | struct netlbl_lsm_secattr *secattr); | |
254 | unsigned char *(*skbuff_optptr)(const struct sk_buff *skb); | |
255 | int (*skbuff_setattr)(struct sk_buff *skb, | |
256 | const struct calipso_doi *doi_def, | |
257 | const struct netlbl_lsm_secattr *secattr); | |
258 | int (*skbuff_delattr)(struct sk_buff *skb); | |
4fee5242 HD |
259 | void (*cache_invalidate)(void); |
260 | int (*cache_add)(const unsigned char *calipso_ptr, | |
261 | const struct netlbl_lsm_secattr *secattr); | |
cb72d382 HD |
262 | }; |
263 | ||
11a03f78 | 264 | /* |
23bcdc1a | 265 | * LSM security attribute operations (inline) |
11a03f78 PM |
266 | */ |
267 | ||
ffb733c6 | 268 | /** |
269 | * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache | |
270 | * @flags: the memory allocation flags | |
271 | * | |
272 | * Description: | |
273 | * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer | |
274 | * on success, NULL on failure. | |
275 | * | |
276 | */ | |
645408d1 | 277 | static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags) |
ffb733c6 | 278 | { |
279 | struct netlbl_lsm_cache *cache; | |
280 | ||
281 | cache = kzalloc(sizeof(*cache), flags); | |
282 | if (cache) | |
b4217b82 | 283 | refcount_set(&cache->refcount, 1); |
ffb733c6 | 284 | return cache; |
285 | } | |
286 | ||
287 | /** | |
288 | * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct | |
289 | * @cache: the struct to free | |
290 | * | |
291 | * Description: | |
292 | * Frees @secattr including all of the internal buffers. | |
293 | * | |
294 | */ | |
295 | static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache) | |
296 | { | |
b4217b82 | 297 | if (!refcount_dec_and_test(&cache->refcount)) |
ffb733c6 | 298 | return; |
299 | ||
300 | if (cache->free) | |
301 | cache->free(cache->data); | |
302 | kfree(cache); | |
303 | } | |
304 | ||
02752760 | 305 | /** |
4fbe63d1 | 306 | * netlbl_catmap_alloc - Allocate a LSM secattr catmap |
02752760 PM |
307 | * @flags: memory allocation flags |
308 | * | |
309 | * Description: | |
310 | * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL | |
311 | * on failure. | |
312 | * | |
313 | */ | |
4fbe63d1 | 314 | static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags) |
02752760 | 315 | { |
4fbe63d1 | 316 | return kzalloc(sizeof(struct netlbl_lsm_catmap), flags); |
02752760 PM |
317 | } |
318 | ||
319 | /** | |
4fbe63d1 | 320 | * netlbl_catmap_free - Free a LSM secattr catmap |
02752760 PM |
321 | * @catmap: the category bitmap |
322 | * | |
323 | * Description: | |
324 | * Free a LSM secattr catmap. | |
325 | * | |
326 | */ | |
4fbe63d1 | 327 | static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap) |
02752760 | 328 | { |
4fbe63d1 | 329 | struct netlbl_lsm_catmap *iter; |
02752760 | 330 | |
4b8feff2 | 331 | while (catmap) { |
02752760 PM |
332 | iter = catmap; |
333 | catmap = catmap->next; | |
334 | kfree(iter); | |
4b8feff2 | 335 | } |
02752760 PM |
336 | } |
337 | ||
11a03f78 PM |
338 | /** |
339 | * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct | |
340 | * @secattr: the struct to initialize | |
341 | * | |
342 | * Description: | |
c6fa82a9 | 343 | * Initialize an already allocated netlbl_lsm_secattr struct. |
11a03f78 PM |
344 | * |
345 | */ | |
c6fa82a9 | 346 | static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr) |
11a03f78 | 347 | { |
16efd454 | 348 | memset(secattr, 0, sizeof(*secattr)); |
11a03f78 PM |
349 | } |
350 | ||
351 | /** | |
352 | * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct | |
353 | * @secattr: the struct to clear | |
11a03f78 PM |
354 | * |
355 | * Description: | |
356 | * Destroys the @secattr struct, including freeing all of the internal buffers. | |
ffb733c6 | 357 | * The struct must be reset with a call to netlbl_secattr_init() before reuse. |
11a03f78 PM |
358 | * |
359 | */ | |
ffb733c6 | 360 | static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr) |
11a03f78 | 361 | { |
00447872 PM |
362 | if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN) |
363 | kfree(secattr->domain); | |
16efd454 PM |
364 | if (secattr->flags & NETLBL_SECATTR_CACHE) |
365 | netlbl_secattr_cache_free(secattr->cache); | |
366 | if (secattr->flags & NETLBL_SECATTR_MLS_CAT) | |
4fbe63d1 | 367 | netlbl_catmap_free(secattr->attr.mls.cat); |
11a03f78 PM |
368 | } |
369 | ||
370 | /** | |
371 | * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct | |
372 | * @flags: the memory allocation flags | |
373 | * | |
374 | * Description: | |
375 | * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid | |
376 | * pointer on success, or NULL on failure. | |
377 | * | |
378 | */ | |
1f758d93 | 379 | static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags) |
11a03f78 PM |
380 | { |
381 | return kzalloc(sizeof(struct netlbl_lsm_secattr), flags); | |
382 | } | |
383 | ||
384 | /** | |
385 | * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct | |
386 | * @secattr: the struct to free | |
11a03f78 PM |
387 | * |
388 | * Description: | |
ffb733c6 | 389 | * Frees @secattr including all of the internal buffers. |
11a03f78 PM |
390 | * |
391 | */ | |
ffb733c6 | 392 | static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr) |
11a03f78 | 393 | { |
ffb733c6 | 394 | netlbl_secattr_destroy(secattr); |
11a03f78 PM |
395 | kfree(secattr); |
396 | } | |
397 | ||
02752760 | 398 | #ifdef CONFIG_NETLABEL |
eda61d32 PM |
399 | /* |
400 | * LSM configuration operations | |
401 | */ | |
6c2e8ac0 PM |
402 | int netlbl_cfg_map_del(const char *domain, |
403 | u16 family, | |
404 | const void *addr, | |
405 | const void *mask, | |
406 | struct netlbl_audit *audit_info); | |
407 | int netlbl_cfg_unlbl_map_add(const char *domain, | |
408 | u16 family, | |
409 | const void *addr, | |
410 | const void *mask, | |
eda61d32 | 411 | struct netlbl_audit *audit_info); |
6c2e8ac0 PM |
412 | int netlbl_cfg_unlbl_static_add(struct net *net, |
413 | const char *dev_name, | |
414 | const void *addr, | |
415 | const void *mask, | |
416 | u16 family, | |
417 | u32 secid, | |
418 | struct netlbl_audit *audit_info); | |
419 | int netlbl_cfg_unlbl_static_del(struct net *net, | |
420 | const char *dev_name, | |
421 | const void *addr, | |
422 | const void *mask, | |
423 | u16 family, | |
424 | struct netlbl_audit *audit_info); | |
425 | int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, | |
426 | struct netlbl_audit *audit_info); | |
427 | void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info); | |
428 | int netlbl_cfg_cipsov4_map_add(u32 doi, | |
eda61d32 | 429 | const char *domain, |
6c2e8ac0 PM |
430 | const struct in_addr *addr, |
431 | const struct in_addr *mask, | |
eda61d32 | 432 | struct netlbl_audit *audit_info); |
3f09354a HD |
433 | int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, |
434 | struct netlbl_audit *audit_info); | |
435 | void netlbl_cfg_calipso_del(u32 doi, struct netlbl_audit *audit_info); | |
436 | int netlbl_cfg_calipso_map_add(u32 doi, | |
437 | const char *domain, | |
438 | const struct in6_addr *addr, | |
439 | const struct in6_addr *mask, | |
440 | struct netlbl_audit *audit_info); | |
23bcdc1a PM |
441 | /* |
442 | * LSM security attribute operations | |
443 | */ | |
4fbe63d1 PM |
444 | int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset); |
445 | int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset); | |
446 | int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, | |
447 | u32 *offset, | |
448 | unsigned long *bitmap); | |
449 | int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, | |
450 | u32 bit, | |
451 | gfp_t flags); | |
452 | int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, | |
453 | u32 start, | |
454 | u32 end, | |
455 | gfp_t flags); | |
456 | int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, | |
457 | u32 offset, | |
458 | unsigned long bitmap, | |
459 | gfp_t flags); | |
23bcdc1a | 460 | |
3faa8f98 HD |
461 | /* Bitmap functions |
462 | */ | |
463 | int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len, | |
464 | u32 offset, u8 state); | |
465 | void netlbl_bitmap_setbit(unsigned char *bitmap, u32 bit, u8 state); | |
466 | ||
23bcdc1a | 467 | /* |
16efd454 | 468 | * LSM protocol operations (NetLabel LSM/kernel API) |
23bcdc1a PM |
469 | */ |
470 | int netlbl_enabled(void); | |
471 | int netlbl_sock_setattr(struct sock *sk, | |
389fb800 | 472 | u16 family, |
23bcdc1a | 473 | const struct netlbl_lsm_secattr *secattr); |
014ab19a | 474 | void netlbl_sock_delattr(struct sock *sk); |
23bcdc1a PM |
475 | int netlbl_sock_getattr(struct sock *sk, |
476 | struct netlbl_lsm_secattr *secattr); | |
014ab19a PM |
477 | int netlbl_conn_setattr(struct sock *sk, |
478 | struct sockaddr *addr, | |
479 | const struct netlbl_lsm_secattr *secattr); | |
389fb800 PM |
480 | int netlbl_req_setattr(struct request_sock *req, |
481 | const struct netlbl_lsm_secattr *secattr); | |
07feee8f | 482 | void netlbl_req_delattr(struct request_sock *req); |
948bf85c PM |
483 | int netlbl_skbuff_setattr(struct sk_buff *skb, |
484 | u16 family, | |
485 | const struct netlbl_lsm_secattr *secattr); | |
23bcdc1a | 486 | int netlbl_skbuff_getattr(const struct sk_buff *skb, |
75e22910 | 487 | u16 family, |
23bcdc1a | 488 | struct netlbl_lsm_secattr *secattr); |
a04e71f6 | 489 | void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway); |
23bcdc1a PM |
490 | |
491 | /* | |
492 | * LSM label mapping cache operations | |
493 | */ | |
494 | void netlbl_cache_invalidate(void); | |
4fee5242 | 495 | int netlbl_cache_add(const struct sk_buff *skb, u16 family, |
23bcdc1a | 496 | const struct netlbl_lsm_secattr *secattr); |
6c2e8ac0 PM |
497 | |
498 | /* | |
499 | * Protocol engine operations | |
500 | */ | |
501 | struct audit_buffer *netlbl_audit_start(int type, | |
502 | struct netlbl_audit *audit_info); | |
02752760 | 503 | #else |
eda61d32 | 504 | static inline int netlbl_cfg_map_del(const char *domain, |
6c2e8ac0 PM |
505 | u16 family, |
506 | const void *addr, | |
507 | const void *mask, | |
eda61d32 PM |
508 | struct netlbl_audit *audit_info) |
509 | { | |
510 | return -ENOSYS; | |
511 | } | |
6c2e8ac0 PM |
512 | static inline int netlbl_cfg_unlbl_map_add(const char *domain, |
513 | u16 family, | |
514 | void *addr, | |
515 | void *mask, | |
eda61d32 PM |
516 | struct netlbl_audit *audit_info) |
517 | { | |
518 | return -ENOSYS; | |
519 | } | |
6c2e8ac0 PM |
520 | static inline int netlbl_cfg_unlbl_static_add(struct net *net, |
521 | const char *dev_name, | |
522 | const void *addr, | |
523 | const void *mask, | |
524 | u16 family, | |
525 | u32 secid, | |
526 | struct netlbl_audit *audit_info) | |
527 | { | |
528 | return -ENOSYS; | |
529 | } | |
530 | static inline int netlbl_cfg_unlbl_static_del(struct net *net, | |
531 | const char *dev_name, | |
532 | const void *addr, | |
533 | const void *mask, | |
534 | u16 family, | |
535 | struct netlbl_audit *audit_info) | |
536 | { | |
537 | return -ENOSYS; | |
538 | } | |
539 | static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, | |
540 | struct netlbl_audit *audit_info) | |
541 | { | |
542 | return -ENOSYS; | |
543 | } | |
544 | static inline void netlbl_cfg_cipsov4_del(u32 doi, | |
545 | struct netlbl_audit *audit_info) | |
546 | { | |
547 | return; | |
548 | } | |
549 | static inline int netlbl_cfg_cipsov4_map_add(u32 doi, | |
eda61d32 | 550 | const char *domain, |
6c2e8ac0 PM |
551 | const struct in_addr *addr, |
552 | const struct in_addr *mask, | |
eda61d32 PM |
553 | struct netlbl_audit *audit_info) |
554 | { | |
555 | return -ENOSYS; | |
556 | } | |
3f09354a HD |
557 | static inline int netlbl_cfg_calipso_add(struct calipso_doi *doi_def, |
558 | struct netlbl_audit *audit_info) | |
559 | { | |
560 | return -ENOSYS; | |
561 | } | |
562 | static inline void netlbl_cfg_calipso_del(u32 doi, | |
563 | struct netlbl_audit *audit_info) | |
564 | { | |
565 | return; | |
566 | } | |
567 | static inline int netlbl_cfg_calipso_map_add(u32 doi, | |
568 | const char *domain, | |
569 | const struct in6_addr *addr, | |
570 | const struct in6_addr *mask, | |
571 | struct netlbl_audit *audit_info) | |
572 | { | |
573 | return -ENOSYS; | |
574 | } | |
4fbe63d1 PM |
575 | static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, |
576 | u32 offset) | |
02752760 PM |
577 | { |
578 | return -ENOENT; | |
579 | } | |
4fbe63d1 PM |
580 | static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, |
581 | u32 offset) | |
02752760 PM |
582 | { |
583 | return -ENOENT; | |
584 | } | |
4fbe63d1 PM |
585 | static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, |
586 | u32 *offset, | |
587 | unsigned long *bitmap) | |
4b8feff2 PM |
588 | { |
589 | return 0; | |
590 | } | |
4fbe63d1 PM |
591 | static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, |
592 | u32 bit, | |
593 | gfp_t flags) | |
02752760 PM |
594 | { |
595 | return 0; | |
596 | } | |
4fbe63d1 PM |
597 | static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, |
598 | u32 start, | |
599 | u32 end, | |
600 | gfp_t flags) | |
02752760 PM |
601 | { |
602 | return 0; | |
603 | } | |
bc7e6edb PM |
604 | static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, |
605 | u32 offset, | |
606 | unsigned long bitmap, | |
607 | gfp_t flags) | |
4b8feff2 PM |
608 | { |
609 | return 0; | |
610 | } | |
23bcdc1a PM |
611 | static inline int netlbl_enabled(void) |
612 | { | |
613 | return 0; | |
614 | } | |
ba6ff9f2 | 615 | static inline int netlbl_sock_setattr(struct sock *sk, |
389fb800 PM |
616 | u16 family, |
617 | const struct netlbl_lsm_secattr *secattr) | |
11a03f78 PM |
618 | { |
619 | return -ENOSYS; | |
620 | } | |
014ab19a PM |
621 | static inline void netlbl_sock_delattr(struct sock *sk) |
622 | { | |
623 | } | |
14a72f53 PM |
624 | static inline int netlbl_sock_getattr(struct sock *sk, |
625 | struct netlbl_lsm_secattr *secattr) | |
626 | { | |
627 | return -ENOSYS; | |
628 | } | |
014ab19a PM |
629 | static inline int netlbl_conn_setattr(struct sock *sk, |
630 | struct sockaddr *addr, | |
631 | const struct netlbl_lsm_secattr *secattr) | |
632 | { | |
633 | return -ENOSYS; | |
634 | } | |
389fb800 PM |
635 | static inline int netlbl_req_setattr(struct request_sock *req, |
636 | const struct netlbl_lsm_secattr *secattr) | |
637 | { | |
638 | return -ENOSYS; | |
639 | } | |
07feee8f PM |
640 | static inline void netlbl_req_delattr(struct request_sock *req) |
641 | { | |
642 | return; | |
643 | } | |
948bf85c PM |
644 | static inline int netlbl_skbuff_setattr(struct sk_buff *skb, |
645 | u16 family, | |
646 | const struct netlbl_lsm_secattr *secattr) | |
647 | { | |
648 | return -ENOSYS; | |
649 | } | |
11a03f78 | 650 | static inline int netlbl_skbuff_getattr(const struct sk_buff *skb, |
75e22910 | 651 | u16 family, |
11a03f78 PM |
652 | struct netlbl_lsm_secattr *secattr) |
653 | { | |
654 | return -ENOSYS; | |
655 | } | |
dfaebe98 PM |
656 | static inline void netlbl_skbuff_err(struct sk_buff *skb, |
657 | int error, | |
658 | int gateway) | |
11a03f78 PM |
659 | { |
660 | return; | |
661 | } | |
11a03f78 PM |
662 | static inline void netlbl_cache_invalidate(void) |
663 | { | |
664 | return; | |
665 | } | |
4fee5242 | 666 | static inline int netlbl_cache_add(const struct sk_buff *skb, u16 family, |
11a03f78 PM |
667 | const struct netlbl_lsm_secattr *secattr) |
668 | { | |
669 | return 0; | |
670 | } | |
6c2e8ac0 PM |
671 | static inline struct audit_buffer *netlbl_audit_start(int type, |
672 | struct netlbl_audit *audit_info) | |
673 | { | |
674 | return NULL; | |
675 | } | |
11a03f78 PM |
676 | #endif /* CONFIG_NETLABEL */ |
677 | ||
cb72d382 HD |
678 | const struct netlbl_calipso_ops * |
679 | netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops); | |
680 | ||
11a03f78 | 681 | #endif /* _NETLABEL_H */ |