blob: 0f05b83851e241d879781811952233ad05c7315c [file] [log] [blame]
Paul Moore11a03f72006-08-03 16:46:20 -07001/*
2 * NetLabel System
3 *
4 * The NetLabel system manages static and dynamic label mappings for network
5 * protocols such as CIPSO and RIPSO.
6 *
Paul Moore82c21bf2011-08-01 11:10:33 +00007 * Author: Paul Moore <paul@paul-moore.com>
Paul Moore11a03f72006-08-03 16:46:20 -07008 *
9 */
10
11/*
Paul Moore63c41682008-10-10 10:16:32 -040012 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
Paul Moore11a03f72006-08-03 16:46:20 -070013 *
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
Jeff Kirshera6227e22013-12-06 09:13:40 -080025 * along with this program; if not, see <http://www.gnu.org/licenses/>.
Paul Moore11a03f72006-08-03 16:46:20 -070026 *
27 */
28
29#ifndef _NETLABEL_H
30#define _NETLABEL_H
31
32#include <linux/types.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090033#include <linux/slab.h>
Paul Moore7a0e1d62006-08-29 17:56:04 -070034#include <linux/net.h>
Paul Moore11a03f72006-08-03 16:46:20 -070035#include <linux/skbuff.h>
Paul Moore6c2e8ac2008-12-31 12:54:11 -050036#include <linux/in.h>
37#include <linux/in6.h>
Paul Moore11a03f72006-08-03 16:46:20 -070038#include <net/netlink.h>
Paul Moore389fb8002009-03-27 17:10:34 -040039#include <net/request_sock.h>
Arun Sharma600634972011-07-26 16:09:06 -070040#include <linux/atomic.h>
Paul Moore11a03f72006-08-03 16:46:20 -070041
Paul Mooreeda61d32008-02-04 22:29:47 -080042struct cipso_v4_doi;
Huw Daviescb72d382016-06-27 15:02:46 -040043struct calipso_doi;
Paul Mooreeda61d32008-02-04 22:29:47 -080044
Paul Moore11a03f72006-08-03 16:46:20 -070045/*
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
Paul Moorefcd48282006-09-25 15:56:09 -070067 * 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.
Paul Moore11a03f72006-08-03 16:46:20 -070069 *
70 */
71
72/*
73 * NetLabel NETLINK protocol
74 */
75
Paul Moore8cc44572008-01-29 08:44:21 -050076/* NetLabel NETLINK protocol version
77 * 1: initial version
78 * 2: added static labels for unlabeled connections
Paul Moored91d4072008-10-10 10:16:34 -040079 * 3: network selectors added to the NetLabel/LSM domain mapping and the
80 * CIPSO_V4_MAP_LOCAL CIPSO mapping was added
Paul Moore8cc44572008-01-29 08:44:21 -050081 */
Paul Moore63c41682008-10-10 10:16:32 -040082#define NETLBL_PROTO_VERSION 3
Paul Moore11a03f72006-08-03 16:46:20 -070083
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"
Paul Moore63c41682008-10-10 10:16:32 -040096#define NETLBL_NLTYPE_ADDRSELECT 6
97#define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL"
Huw Daviescb72d382016-06-27 15:02:46 -040098#define NETLBL_NLTYPE_CALIPSO 7
99#define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO"
Paul Moore11a03f72006-08-03 16:46:20 -0700100
Paul Moore11a03f72006-08-03 16:46:20 -0700101/*
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
Paul Moore95d4e6b2006-09-29 17:05:05 -0700112/* NetLabel audit information */
113struct netlbl_audit {
114 u32 secid;
Eric W. Biedermane1760bd2012-09-10 22:39:43 -0700115 kuid_t loginuid;
Eric Paris4440e852013-11-27 17:35:17 -0500116 unsigned int sessionid;
Paul Moore95d4e6b2006-09-29 17:05:05 -0700117};
118
Paul Moore16efd452008-01-29 08:37:59 -0500119/*
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 */
Paul Moore11a03f72006-08-03 16:46:20 -0700138struct netlbl_lsm_cache {
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400139 atomic_t refcount;
Paul Moore11a03f72006-08-03 16:46:20 -0700140 void (*free) (const void *data);
141 void *data;
142};
Paul Moore16efd452008-01-29 08:37:59 -0500143
144/**
Paul Moore4fbe63d2014-08-01 11:17:37 -0400145 * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap
Paul Moore16efd452008-01-29 08:37:59 -0500146 * @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
Paul Moore02752762006-11-29 13:18:18 -0500156 * 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
Paul Moore16efd452008-01-29 08:37:59 -0500159 * processing.
160 *
161 */
Paul Moore02752762006-11-29 13:18:18 -0500162#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
Paul Moore4fbe63d2014-08-01 11:17:37 -0400168struct netlbl_lsm_catmap {
Paul Moore02752762006-11-29 13:18:18 -0500169 u32 startbit;
170 NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT];
Paul Moore4fbe63d2014-08-01 11:17:37 -0400171 struct netlbl_lsm_catmap *next;
Paul Moore02752762006-11-29 13:18:18 -0500172};
Paul Moore16efd452008-01-29 08:37:59 -0500173
174/**
175 * struct netlbl_lsm_secattr - NetLabel LSM security attributes
Paul Moore00447872008-04-12 19:06:42 -0700176 * @flags: indicate structure attributes, see NETLBL_SECATTR_*
Paul Moore16efd452008-01-29 08:37:59 -0500177 * @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 */
Paul Moore00447872008-04-12 19:06:42 -0700194struct netlbl_lsm_secattr {
195 u32 flags;
196 /* bitmap values for 'flags' */
Paul Moore701a90b2006-11-17 17:38:46 -0500197#define NETLBL_SECATTR_NONE 0x00000000
198#define NETLBL_SECATTR_DOMAIN 0x00000001
Paul Moore00447872008-04-12 19:06:42 -0700199#define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \
200 NETLBL_SECATTR_FREE_DOMAIN)
Paul Moore701a90b2006-11-17 17:38:46 -0500201#define NETLBL_SECATTR_CACHE 0x00000002
202#define NETLBL_SECATTR_MLS_LVL 0x00000004
203#define NETLBL_SECATTR_MLS_CAT 0x00000008
Paul Moore16efd452008-01-29 08:37:59 -0500204#define NETLBL_SECATTR_SECID 0x00000010
Paul Moore00447872008-04-12 19:06:42 -0700205 /* bitmap meta-values for 'flags' */
206#define NETLBL_SECATTR_FREE_DOMAIN 0x01000000
Paul Moore9534f712007-07-30 16:33:26 -0400207#define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \
Paul Moore16efd452008-01-29 08:37:59 -0500208 NETLBL_SECATTR_MLS_CAT | \
209 NETLBL_SECATTR_SECID)
Paul Moore16efd452008-01-29 08:37:59 -0500210 u32 type;
Paul Moore11a03f72006-08-03 16:46:20 -0700211 char *domain;
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400212 struct netlbl_lsm_cache *cache;
Paul Moore8d758992008-10-10 10:16:33 -0400213 struct {
Paul Moore16efd452008-01-29 08:37:59 -0500214 struct {
Paul Moore4fbe63d2014-08-01 11:17:37 -0400215 struct netlbl_lsm_catmap *cat;
Paul Moore16efd452008-01-29 08:37:59 -0500216 u32 lvl;
217 } mls;
218 u32 secid;
219 } attr;
Paul Moore11a03f72006-08-03 16:46:20 -0700220};
221
Huw Daviescb72d382016-06-27 15:02:46 -0400222/**
223 * struct netlbl_calipso_ops - NetLabel CALIPSO operations
224 * @doi_add: add a CALIPSO DOI
225 * @doi_free: free a CALIPSO DOI
Huw Daviesa5e34492016-06-27 15:02:47 -0400226 * @doi_getdef: returns a reference to a DOI
227 * @doi_putdef: releases a reference of a DOI
Huw Daviescb72d382016-06-27 15:02:46 -0400228 *
229 * Description:
230 * This structure is filled out by the CALIPSO engine and passed
231 * to the NetLabel core via a call to netlbl_calipso_ops_register().
232 * It enables the CALIPSO engine (and hence IPv6) to be compiled
233 * as a module.
234 */
235struct netlbl_calipso_ops {
236 int (*doi_add)(struct calipso_doi *doi_def,
237 struct netlbl_audit *audit_info);
238 void (*doi_free)(struct calipso_doi *doi_def);
Huw Daviesa5e34492016-06-27 15:02:47 -0400239 struct calipso_doi *(*doi_getdef)(u32 doi);
240 void (*doi_putdef)(struct calipso_doi *doi_def);
Huw Daviescb72d382016-06-27 15:02:46 -0400241};
242
Paul Moore11a03f72006-08-03 16:46:20 -0700243/*
Paul Moore23bcdc12007-07-18 12:28:45 -0400244 * LSM security attribute operations (inline)
Paul Moore11a03f72006-08-03 16:46:20 -0700245 */
246
Paul Moore11a03f72006-08-03 16:46:20 -0700247/**
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400248 * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache
249 * @flags: the memory allocation flags
250 *
251 * Description:
252 * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer
253 * on success, NULL on failure.
254 *
255 */
Al Viro645408d2006-10-14 16:50:38 +0100256static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags)
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400257{
258 struct netlbl_lsm_cache *cache;
259
260 cache = kzalloc(sizeof(*cache), flags);
261 if (cache)
262 atomic_set(&cache->refcount, 1);
263 return cache;
264}
265
266/**
267 * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct
268 * @cache: the struct to free
269 *
270 * Description:
271 * Frees @secattr including all of the internal buffers.
272 *
273 */
274static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache)
275{
276 if (!atomic_dec_and_test(&cache->refcount))
277 return;
278
279 if (cache->free)
280 cache->free(cache->data);
281 kfree(cache);
282}
283
284/**
Paul Moore4fbe63d2014-08-01 11:17:37 -0400285 * netlbl_catmap_alloc - Allocate a LSM secattr catmap
Paul Moore02752762006-11-29 13:18:18 -0500286 * @flags: memory allocation flags
287 *
288 * Description:
289 * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL
290 * on failure.
291 *
292 */
Paul Moore4fbe63d2014-08-01 11:17:37 -0400293static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags)
Paul Moore02752762006-11-29 13:18:18 -0500294{
Paul Moore4fbe63d2014-08-01 11:17:37 -0400295 return kzalloc(sizeof(struct netlbl_lsm_catmap), flags);
Paul Moore02752762006-11-29 13:18:18 -0500296}
297
298/**
Paul Moore4fbe63d2014-08-01 11:17:37 -0400299 * netlbl_catmap_free - Free a LSM secattr catmap
Paul Moore02752762006-11-29 13:18:18 -0500300 * @catmap: the category bitmap
301 *
302 * Description:
303 * Free a LSM secattr catmap.
304 *
305 */
Paul Moore4fbe63d2014-08-01 11:17:37 -0400306static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap)
Paul Moore02752762006-11-29 13:18:18 -0500307{
Paul Moore4fbe63d2014-08-01 11:17:37 -0400308 struct netlbl_lsm_catmap *iter;
Paul Moore02752762006-11-29 13:18:18 -0500309
Paul Moore4b8feff2014-08-01 11:17:17 -0400310 while (catmap) {
Paul Moore02752762006-11-29 13:18:18 -0500311 iter = catmap;
312 catmap = catmap->next;
313 kfree(iter);
Paul Moore4b8feff2014-08-01 11:17:17 -0400314 }
Paul Moore02752762006-11-29 13:18:18 -0500315}
316
317/**
Paul Moore11a03f72006-08-03 16:46:20 -0700318 * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct
319 * @secattr: the struct to initialize
320 *
321 * Description:
Paul Moorec6fa82a2006-11-17 17:38:45 -0500322 * Initialize an already allocated netlbl_lsm_secattr struct.
Paul Moore11a03f72006-08-03 16:46:20 -0700323 *
324 */
Paul Moorec6fa82a2006-11-17 17:38:45 -0500325static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr)
Paul Moore11a03f72006-08-03 16:46:20 -0700326{
Paul Moore16efd452008-01-29 08:37:59 -0500327 memset(secattr, 0, sizeof(*secattr));
Paul Moore11a03f72006-08-03 16:46:20 -0700328}
329
330/**
331 * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct
332 * @secattr: the struct to clear
Paul Moore11a03f72006-08-03 16:46:20 -0700333 *
334 * Description:
335 * Destroys the @secattr struct, including freeing all of the internal buffers.
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400336 * The struct must be reset with a call to netlbl_secattr_init() before reuse.
Paul Moore11a03f72006-08-03 16:46:20 -0700337 *
338 */
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400339static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr)
Paul Moore11a03f72006-08-03 16:46:20 -0700340{
Paul Moore00447872008-04-12 19:06:42 -0700341 if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN)
342 kfree(secattr->domain);
Paul Moore16efd452008-01-29 08:37:59 -0500343 if (secattr->flags & NETLBL_SECATTR_CACHE)
344 netlbl_secattr_cache_free(secattr->cache);
345 if (secattr->flags & NETLBL_SECATTR_MLS_CAT)
Paul Moore4fbe63d2014-08-01 11:17:37 -0400346 netlbl_catmap_free(secattr->attr.mls.cat);
Paul Moore11a03f72006-08-03 16:46:20 -0700347}
348
349/**
350 * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct
351 * @flags: the memory allocation flags
352 *
353 * Description:
354 * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid
355 * pointer on success, or NULL on failure.
356 *
357 */
Paul Moore1f758d92006-11-17 17:38:43 -0500358static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags)
Paul Moore11a03f72006-08-03 16:46:20 -0700359{
360 return kzalloc(sizeof(struct netlbl_lsm_secattr), flags);
361}
362
363/**
364 * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct
365 * @secattr: the struct to free
Paul Moore11a03f72006-08-03 16:46:20 -0700366 *
367 * Description:
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400368 * Frees @secattr including all of the internal buffers.
Paul Moore11a03f72006-08-03 16:46:20 -0700369 *
370 */
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400371static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
Paul Moore11a03f72006-08-03 16:46:20 -0700372{
paul.moore@hp.comffb733c2006-10-04 11:46:31 -0400373 netlbl_secattr_destroy(secattr);
Paul Moore11a03f72006-08-03 16:46:20 -0700374 kfree(secattr);
375}
376
Paul Moore02752762006-11-29 13:18:18 -0500377#ifdef CONFIG_NETLABEL
Paul Moore23bcdc12007-07-18 12:28:45 -0400378/*
Paul Mooreeda61d32008-02-04 22:29:47 -0800379 * LSM configuration operations
380 */
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500381int netlbl_cfg_map_del(const char *domain,
382 u16 family,
383 const void *addr,
384 const void *mask,
385 struct netlbl_audit *audit_info);
386int netlbl_cfg_unlbl_map_add(const char *domain,
387 u16 family,
388 const void *addr,
389 const void *mask,
Paul Mooreeda61d32008-02-04 22:29:47 -0800390 struct netlbl_audit *audit_info);
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500391int netlbl_cfg_unlbl_static_add(struct net *net,
392 const char *dev_name,
393 const void *addr,
394 const void *mask,
395 u16 family,
396 u32 secid,
397 struct netlbl_audit *audit_info);
398int netlbl_cfg_unlbl_static_del(struct net *net,
399 const char *dev_name,
400 const void *addr,
401 const void *mask,
402 u16 family,
403 struct netlbl_audit *audit_info);
404int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
405 struct netlbl_audit *audit_info);
406void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
407int netlbl_cfg_cipsov4_map_add(u32 doi,
Paul Mooreeda61d32008-02-04 22:29:47 -0800408 const char *domain,
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500409 const struct in_addr *addr,
410 const struct in_addr *mask,
Paul Mooreeda61d32008-02-04 22:29:47 -0800411 struct netlbl_audit *audit_info);
Paul Mooreeda61d32008-02-04 22:29:47 -0800412/*
Paul Moore23bcdc12007-07-18 12:28:45 -0400413 * LSM security attribute operations
414 */
Paul Moore4fbe63d2014-08-01 11:17:37 -0400415int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset);
416int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset);
417int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap,
418 u32 *offset,
419 unsigned long *bitmap);
420int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap,
421 u32 bit,
422 gfp_t flags);
423int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap,
424 u32 start,
425 u32 end,
426 gfp_t flags);
427int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap,
428 u32 offset,
429 unsigned long bitmap,
430 gfp_t flags);
Paul Moore23bcdc12007-07-18 12:28:45 -0400431
432/*
Paul Moore16efd452008-01-29 08:37:59 -0500433 * LSM protocol operations (NetLabel LSM/kernel API)
Paul Moore23bcdc12007-07-18 12:28:45 -0400434 */
435int netlbl_enabled(void);
436int netlbl_sock_setattr(struct sock *sk,
Paul Moore389fb8002009-03-27 17:10:34 -0400437 u16 family,
Paul Moore23bcdc12007-07-18 12:28:45 -0400438 const struct netlbl_lsm_secattr *secattr);
Paul Moore014ab192008-10-10 10:16:33 -0400439void netlbl_sock_delattr(struct sock *sk);
Paul Moore23bcdc12007-07-18 12:28:45 -0400440int netlbl_sock_getattr(struct sock *sk,
441 struct netlbl_lsm_secattr *secattr);
Paul Moore014ab192008-10-10 10:16:33 -0400442int netlbl_conn_setattr(struct sock *sk,
443 struct sockaddr *addr,
444 const struct netlbl_lsm_secattr *secattr);
Paul Moore389fb8002009-03-27 17:10:34 -0400445int netlbl_req_setattr(struct request_sock *req,
446 const struct netlbl_lsm_secattr *secattr);
Paul Moore07feee82009-03-27 17:10:54 -0400447void netlbl_req_delattr(struct request_sock *req);
Paul Moore948bf852008-10-10 10:16:32 -0400448int netlbl_skbuff_setattr(struct sk_buff *skb,
449 u16 family,
450 const struct netlbl_lsm_secattr *secattr);
Paul Moore23bcdc12007-07-18 12:28:45 -0400451int netlbl_skbuff_getattr(const struct sk_buff *skb,
Paul Moore75e22912008-01-29 08:38:04 -0500452 u16 family,
Paul Moore23bcdc12007-07-18 12:28:45 -0400453 struct netlbl_lsm_secattr *secattr);
Paul Mooredfaebe92008-10-10 10:16:31 -0400454void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway);
Paul Moore23bcdc12007-07-18 12:28:45 -0400455
456/*
457 * LSM label mapping cache operations
458 */
459void netlbl_cache_invalidate(void);
460int netlbl_cache_add(const struct sk_buff *skb,
461 const struct netlbl_lsm_secattr *secattr);
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500462
463/*
464 * Protocol engine operations
465 */
466struct audit_buffer *netlbl_audit_start(int type,
467 struct netlbl_audit *audit_info);
Paul Moore02752762006-11-29 13:18:18 -0500468#else
Paul Mooreeda61d32008-02-04 22:29:47 -0800469static inline int netlbl_cfg_map_del(const char *domain,
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500470 u16 family,
471 const void *addr,
472 const void *mask,
Paul Mooreeda61d32008-02-04 22:29:47 -0800473 struct netlbl_audit *audit_info)
474{
475 return -ENOSYS;
476}
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500477static inline int netlbl_cfg_unlbl_map_add(const char *domain,
478 u16 family,
479 void *addr,
480 void *mask,
Paul Mooreeda61d32008-02-04 22:29:47 -0800481 struct netlbl_audit *audit_info)
482{
483 return -ENOSYS;
484}
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500485static inline int netlbl_cfg_unlbl_static_add(struct net *net,
486 const char *dev_name,
487 const void *addr,
488 const void *mask,
489 u16 family,
490 u32 secid,
491 struct netlbl_audit *audit_info)
492{
493 return -ENOSYS;
494}
495static inline int netlbl_cfg_unlbl_static_del(struct net *net,
496 const char *dev_name,
497 const void *addr,
498 const void *mask,
499 u16 family,
500 struct netlbl_audit *audit_info)
501{
502 return -ENOSYS;
503}
504static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
505 struct netlbl_audit *audit_info)
506{
507 return -ENOSYS;
508}
509static inline void netlbl_cfg_cipsov4_del(u32 doi,
510 struct netlbl_audit *audit_info)
511{
512 return;
513}
514static inline int netlbl_cfg_cipsov4_map_add(u32 doi,
Paul Mooreeda61d32008-02-04 22:29:47 -0800515 const char *domain,
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500516 const struct in_addr *addr,
517 const struct in_addr *mask,
Paul Mooreeda61d32008-02-04 22:29:47 -0800518 struct netlbl_audit *audit_info)
519{
520 return -ENOSYS;
521}
Paul Moore4fbe63d2014-08-01 11:17:37 -0400522static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap,
523 u32 offset)
Paul Moore02752762006-11-29 13:18:18 -0500524{
525 return -ENOENT;
526}
Paul Moore4fbe63d2014-08-01 11:17:37 -0400527static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap,
528 u32 offset)
Paul Moore02752762006-11-29 13:18:18 -0500529{
530 return -ENOENT;
531}
Paul Moore4fbe63d2014-08-01 11:17:37 -0400532static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap,
533 u32 *offset,
534 unsigned long *bitmap)
Paul Moore4b8feff2014-08-01 11:17:17 -0400535{
536 return 0;
537}
Paul Moore4fbe63d2014-08-01 11:17:37 -0400538static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap,
539 u32 bit,
540 gfp_t flags)
Paul Moore02752762006-11-29 13:18:18 -0500541{
542 return 0;
543}
Paul Moore4fbe63d2014-08-01 11:17:37 -0400544static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap,
545 u32 start,
546 u32 end,
547 gfp_t flags)
Paul Moore02752762006-11-29 13:18:18 -0500548{
549 return 0;
550}
Paul Moorebc7e6ed2014-08-07 20:55:21 -0400551static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap,
552 u32 offset,
553 unsigned long bitmap,
554 gfp_t flags)
Paul Moore4b8feff2014-08-01 11:17:17 -0400555{
556 return 0;
557}
Paul Moore23bcdc12007-07-18 12:28:45 -0400558static inline int netlbl_enabled(void)
559{
560 return 0;
561}
Paul Mooreba6ff9f2007-06-07 18:37:15 -0700562static inline int netlbl_sock_setattr(struct sock *sk,
Paul Moore389fb8002009-03-27 17:10:34 -0400563 u16 family,
564 const struct netlbl_lsm_secattr *secattr)
Paul Moore11a03f72006-08-03 16:46:20 -0700565{
566 return -ENOSYS;
567}
Paul Moore014ab192008-10-10 10:16:33 -0400568static inline void netlbl_sock_delattr(struct sock *sk)
569{
570}
Paul Moore14a72f52006-09-25 15:52:01 -0700571static inline int netlbl_sock_getattr(struct sock *sk,
572 struct netlbl_lsm_secattr *secattr)
573{
574 return -ENOSYS;
575}
Paul Moore014ab192008-10-10 10:16:33 -0400576static inline int netlbl_conn_setattr(struct sock *sk,
577 struct sockaddr *addr,
578 const struct netlbl_lsm_secattr *secattr)
579{
580 return -ENOSYS;
581}
Paul Moore389fb8002009-03-27 17:10:34 -0400582static inline int netlbl_req_setattr(struct request_sock *req,
583 const struct netlbl_lsm_secattr *secattr)
584{
585 return -ENOSYS;
586}
Paul Moore07feee82009-03-27 17:10:54 -0400587static inline void netlbl_req_delattr(struct request_sock *req)
588{
589 return;
590}
Paul Moore948bf852008-10-10 10:16:32 -0400591static inline int netlbl_skbuff_setattr(struct sk_buff *skb,
592 u16 family,
593 const struct netlbl_lsm_secattr *secattr)
594{
595 return -ENOSYS;
596}
Paul Moore11a03f72006-08-03 16:46:20 -0700597static inline int netlbl_skbuff_getattr(const struct sk_buff *skb,
Paul Moore75e22912008-01-29 08:38:04 -0500598 u16 family,
Paul Moore11a03f72006-08-03 16:46:20 -0700599 struct netlbl_lsm_secattr *secattr)
600{
601 return -ENOSYS;
602}
Paul Mooredfaebe92008-10-10 10:16:31 -0400603static inline void netlbl_skbuff_err(struct sk_buff *skb,
604 int error,
605 int gateway)
Paul Moore11a03f72006-08-03 16:46:20 -0700606{
607 return;
608}
Paul Moore11a03f72006-08-03 16:46:20 -0700609static inline void netlbl_cache_invalidate(void)
610{
611 return;
612}
Paul Moore11a03f72006-08-03 16:46:20 -0700613static inline int netlbl_cache_add(const struct sk_buff *skb,
614 const struct netlbl_lsm_secattr *secattr)
615{
616 return 0;
617}
Paul Moore6c2e8ac2008-12-31 12:54:11 -0500618static inline struct audit_buffer *netlbl_audit_start(int type,
619 struct netlbl_audit *audit_info)
620{
621 return NULL;
622}
Paul Moore11a03f72006-08-03 16:46:20 -0700623#endif /* CONFIG_NETLABEL */
624
Huw Daviescb72d382016-06-27 15:02:46 -0400625const struct netlbl_calipso_ops *
626netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops);
627
Paul Moore11a03f72006-08-03 16:46:20 -0700628#endif /* _NETLABEL_H */