Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 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 | * |
Paul Moore | 82c21bf | 2011-08-01 11:10:33 +0000 | [diff] [blame] | 7 | * Author: Paul Moore <paul@paul-moore.com> |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 8 | * |
| 9 | */ |
| 10 | |
| 11 | /* |
Paul Moore | 63c4168 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 12 | * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008 |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 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 |
Jeff Kirsher | a6227e2 | 2013-12-06 09:13:40 -0800 | [diff] [blame] | 25 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 26 | * |
| 27 | */ |
| 28 | |
| 29 | #ifndef _NETLABEL_H |
| 30 | #define _NETLABEL_H |
| 31 | |
| 32 | #include <linux/types.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 33 | #include <linux/slab.h> |
Paul Moore | 7a0e1d6 | 2006-08-29 17:56:04 -0700 | [diff] [blame] | 34 | #include <linux/net.h> |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 35 | #include <linux/skbuff.h> |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 36 | #include <linux/in.h> |
| 37 | #include <linux/in6.h> |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 38 | #include <net/netlink.h> |
Paul Moore | 389fb800 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 39 | #include <net/request_sock.h> |
Arun Sharma | 60063497 | 2011-07-26 16:09:06 -0700 | [diff] [blame] | 40 | #include <linux/atomic.h> |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 41 | |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 42 | struct cipso_v4_doi; |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 43 | struct calipso_doi; |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 44 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 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 |
Paul Moore | fcd4828 | 2006-09-25 15:56:09 -0700 | [diff] [blame] | 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. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 69 | * |
| 70 | */ |
| 71 | |
| 72 | /* |
| 73 | * NetLabel NETLINK protocol |
| 74 | */ |
| 75 | |
Paul Moore | 8cc4457 | 2008-01-29 08:44:21 -0500 | [diff] [blame] | 76 | /* NetLabel NETLINK protocol version |
| 77 | * 1: initial version |
| 78 | * 2: added static labels for unlabeled connections |
Paul Moore | d91d407 | 2008-10-10 10:16:34 -0400 | [diff] [blame] | 79 | * 3: network selectors added to the NetLabel/LSM domain mapping and the |
| 80 | * CIPSO_V4_MAP_LOCAL CIPSO mapping was added |
Paul Moore | 8cc4457 | 2008-01-29 08:44:21 -0500 | [diff] [blame] | 81 | */ |
Paul Moore | 63c4168 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 82 | #define NETLBL_PROTO_VERSION 3 |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 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" |
Paul Moore | 63c4168 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 96 | #define NETLBL_NLTYPE_ADDRSELECT 6 |
| 97 | #define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL" |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 98 | #define NETLBL_NLTYPE_CALIPSO 7 |
| 99 | #define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO" |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 100 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 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 | |
Paul Moore | 95d4e6b | 2006-09-29 17:05:05 -0700 | [diff] [blame] | 112 | /* NetLabel audit information */ |
| 113 | struct netlbl_audit { |
| 114 | u32 secid; |
Eric W. Biederman | e1760bd | 2012-09-10 22:39:43 -0700 | [diff] [blame] | 115 | kuid_t loginuid; |
Eric Paris | 4440e85 | 2013-11-27 17:35:17 -0500 | [diff] [blame] | 116 | unsigned int sessionid; |
Paul Moore | 95d4e6b | 2006-09-29 17:05:05 -0700 | [diff] [blame] | 117 | }; |
| 118 | |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 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 | */ |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 138 | struct netlbl_lsm_cache { |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 139 | atomic_t refcount; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 140 | void (*free) (const void *data); |
| 141 | void *data; |
| 142 | }; |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 143 | |
| 144 | /** |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 145 | * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 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 |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 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 |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 159 | * processing. |
| 160 | * |
| 161 | */ |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 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 |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 168 | struct netlbl_lsm_catmap { |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 169 | u32 startbit; |
| 170 | NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT]; |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 171 | struct netlbl_lsm_catmap *next; |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 172 | }; |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 173 | |
| 174 | /** |
| 175 | * struct netlbl_lsm_secattr - NetLabel LSM security attributes |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 176 | * @flags: indicate structure attributes, see NETLBL_SECATTR_* |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 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 | */ |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 194 | struct netlbl_lsm_secattr { |
| 195 | u32 flags; |
| 196 | /* bitmap values for 'flags' */ |
Paul Moore | 701a90b | 2006-11-17 17:38:46 -0500 | [diff] [blame] | 197 | #define NETLBL_SECATTR_NONE 0x00000000 |
| 198 | #define NETLBL_SECATTR_DOMAIN 0x00000001 |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 199 | #define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \ |
| 200 | NETLBL_SECATTR_FREE_DOMAIN) |
Paul Moore | 701a90b | 2006-11-17 17:38:46 -0500 | [diff] [blame] | 201 | #define NETLBL_SECATTR_CACHE 0x00000002 |
| 202 | #define NETLBL_SECATTR_MLS_LVL 0x00000004 |
| 203 | #define NETLBL_SECATTR_MLS_CAT 0x00000008 |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 204 | #define NETLBL_SECATTR_SECID 0x00000010 |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 205 | /* bitmap meta-values for 'flags' */ |
| 206 | #define NETLBL_SECATTR_FREE_DOMAIN 0x01000000 |
Paul Moore | 9534f71 | 2007-07-30 16:33:26 -0400 | [diff] [blame] | 207 | #define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \ |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 208 | NETLBL_SECATTR_MLS_CAT | \ |
| 209 | NETLBL_SECATTR_SECID) |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 210 | u32 type; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 211 | char *domain; |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 212 | struct netlbl_lsm_cache *cache; |
Paul Moore | 8d75899 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 213 | struct { |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 214 | struct { |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 215 | struct netlbl_lsm_catmap *cat; |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 216 | u32 lvl; |
| 217 | } mls; |
| 218 | u32 secid; |
| 219 | } attr; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 220 | }; |
| 221 | |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 222 | /** |
| 223 | * struct netlbl_calipso_ops - NetLabel CALIPSO operations |
| 224 | * @doi_add: add a CALIPSO DOI |
| 225 | * @doi_free: free a CALIPSO DOI |
Huw Davies | a5e3449 | 2016-06-27 15:02:47 -0400 | [diff] [blame] | 226 | * @doi_getdef: returns a reference to a DOI |
| 227 | * @doi_putdef: releases a reference of a DOI |
Huw Davies | e1ce69d | 2016-06-27 15:02:48 -0400 | [diff] [blame] | 228 | * @doi_walk: enumerate the DOI list |
Huw Davies | ceba183 | 2016-06-27 15:02:51 -0400 | [diff] [blame^] | 229 | * @sock_getattr: retrieve the socket's attr |
| 230 | * @sock_setattr: set the socket's attr |
| 231 | * @sock_delattr: remove the socket's attr |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 232 | * |
| 233 | * Description: |
| 234 | * This structure is filled out by the CALIPSO engine and passed |
| 235 | * to the NetLabel core via a call to netlbl_calipso_ops_register(). |
| 236 | * It enables the CALIPSO engine (and hence IPv6) to be compiled |
| 237 | * as a module. |
| 238 | */ |
| 239 | struct netlbl_calipso_ops { |
| 240 | int (*doi_add)(struct calipso_doi *doi_def, |
| 241 | struct netlbl_audit *audit_info); |
| 242 | void (*doi_free)(struct calipso_doi *doi_def); |
Huw Davies | d7cce01 | 2016-06-27 15:02:49 -0400 | [diff] [blame] | 243 | int (*doi_remove)(u32 doi, struct netlbl_audit *audit_info); |
Huw Davies | a5e3449 | 2016-06-27 15:02:47 -0400 | [diff] [blame] | 244 | struct calipso_doi *(*doi_getdef)(u32 doi); |
| 245 | void (*doi_putdef)(struct calipso_doi *doi_def); |
Huw Davies | e1ce69d | 2016-06-27 15:02:48 -0400 | [diff] [blame] | 246 | int (*doi_walk)(u32 *skip_cnt, |
| 247 | int (*callback)(struct calipso_doi *doi_def, void *arg), |
| 248 | void *cb_arg); |
Huw Davies | ceba183 | 2016-06-27 15:02:51 -0400 | [diff] [blame^] | 249 | int (*sock_getattr)(struct sock *sk, |
| 250 | struct netlbl_lsm_secattr *secattr); |
| 251 | int (*sock_setattr)(struct sock *sk, |
| 252 | const struct calipso_doi *doi_def, |
| 253 | const struct netlbl_lsm_secattr *secattr); |
| 254 | void (*sock_delattr)(struct sock *sk); |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 255 | }; |
| 256 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 257 | /* |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 258 | * LSM security attribute operations (inline) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 259 | */ |
| 260 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 261 | /** |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 262 | * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache |
| 263 | * @flags: the memory allocation flags |
| 264 | * |
| 265 | * Description: |
| 266 | * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer |
| 267 | * on success, NULL on failure. |
| 268 | * |
| 269 | */ |
Al Viro | 645408d | 2006-10-14 16:50:38 +0100 | [diff] [blame] | 270 | static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags) |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 271 | { |
| 272 | struct netlbl_lsm_cache *cache; |
| 273 | |
| 274 | cache = kzalloc(sizeof(*cache), flags); |
| 275 | if (cache) |
| 276 | atomic_set(&cache->refcount, 1); |
| 277 | return cache; |
| 278 | } |
| 279 | |
| 280 | /** |
| 281 | * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct |
| 282 | * @cache: the struct to free |
| 283 | * |
| 284 | * Description: |
| 285 | * Frees @secattr including all of the internal buffers. |
| 286 | * |
| 287 | */ |
| 288 | static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache) |
| 289 | { |
| 290 | if (!atomic_dec_and_test(&cache->refcount)) |
| 291 | return; |
| 292 | |
| 293 | if (cache->free) |
| 294 | cache->free(cache->data); |
| 295 | kfree(cache); |
| 296 | } |
| 297 | |
| 298 | /** |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 299 | * netlbl_catmap_alloc - Allocate a LSM secattr catmap |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 300 | * @flags: memory allocation flags |
| 301 | * |
| 302 | * Description: |
| 303 | * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL |
| 304 | * on failure. |
| 305 | * |
| 306 | */ |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 307 | static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 308 | { |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 309 | return kzalloc(sizeof(struct netlbl_lsm_catmap), flags); |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | /** |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 313 | * netlbl_catmap_free - Free a LSM secattr catmap |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 314 | * @catmap: the category bitmap |
| 315 | * |
| 316 | * Description: |
| 317 | * Free a LSM secattr catmap. |
| 318 | * |
| 319 | */ |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 320 | static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 321 | { |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 322 | struct netlbl_lsm_catmap *iter; |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 323 | |
Paul Moore | 4b8feff | 2014-08-01 11:17:17 -0400 | [diff] [blame] | 324 | while (catmap) { |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 325 | iter = catmap; |
| 326 | catmap = catmap->next; |
| 327 | kfree(iter); |
Paul Moore | 4b8feff | 2014-08-01 11:17:17 -0400 | [diff] [blame] | 328 | } |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | /** |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 332 | * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct |
| 333 | * @secattr: the struct to initialize |
| 334 | * |
| 335 | * Description: |
Paul Moore | c6fa82a | 2006-11-17 17:38:45 -0500 | [diff] [blame] | 336 | * Initialize an already allocated netlbl_lsm_secattr struct. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 337 | * |
| 338 | */ |
Paul Moore | c6fa82a | 2006-11-17 17:38:45 -0500 | [diff] [blame] | 339 | static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 340 | { |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 341 | memset(secattr, 0, sizeof(*secattr)); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | /** |
| 345 | * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct |
| 346 | * @secattr: the struct to clear |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 347 | * |
| 348 | * Description: |
| 349 | * Destroys the @secattr struct, including freeing all of the internal buffers. |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 350 | * The struct must be reset with a call to netlbl_secattr_init() before reuse. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 351 | * |
| 352 | */ |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 353 | static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 354 | { |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 355 | if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN) |
| 356 | kfree(secattr->domain); |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 357 | if (secattr->flags & NETLBL_SECATTR_CACHE) |
| 358 | netlbl_secattr_cache_free(secattr->cache); |
| 359 | if (secattr->flags & NETLBL_SECATTR_MLS_CAT) |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 360 | netlbl_catmap_free(secattr->attr.mls.cat); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | /** |
| 364 | * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct |
| 365 | * @flags: the memory allocation flags |
| 366 | * |
| 367 | * Description: |
| 368 | * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid |
| 369 | * pointer on success, or NULL on failure. |
| 370 | * |
| 371 | */ |
Paul Moore | 1f758d9 | 2006-11-17 17:38:43 -0500 | [diff] [blame] | 372 | static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 373 | { |
| 374 | return kzalloc(sizeof(struct netlbl_lsm_secattr), flags); |
| 375 | } |
| 376 | |
| 377 | /** |
| 378 | * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct |
| 379 | * @secattr: the struct to free |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 380 | * |
| 381 | * Description: |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 382 | * Frees @secattr including all of the internal buffers. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 383 | * |
| 384 | */ |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 385 | static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 386 | { |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 387 | netlbl_secattr_destroy(secattr); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 388 | kfree(secattr); |
| 389 | } |
| 390 | |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 391 | #ifdef CONFIG_NETLABEL |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 392 | /* |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 393 | * LSM configuration operations |
| 394 | */ |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 395 | int netlbl_cfg_map_del(const char *domain, |
| 396 | u16 family, |
| 397 | const void *addr, |
| 398 | const void *mask, |
| 399 | struct netlbl_audit *audit_info); |
| 400 | int netlbl_cfg_unlbl_map_add(const char *domain, |
| 401 | u16 family, |
| 402 | const void *addr, |
| 403 | const void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 404 | struct netlbl_audit *audit_info); |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 405 | int netlbl_cfg_unlbl_static_add(struct net *net, |
| 406 | const char *dev_name, |
| 407 | const void *addr, |
| 408 | const void *mask, |
| 409 | u16 family, |
| 410 | u32 secid, |
| 411 | struct netlbl_audit *audit_info); |
| 412 | int netlbl_cfg_unlbl_static_del(struct net *net, |
| 413 | const char *dev_name, |
| 414 | const void *addr, |
| 415 | const void *mask, |
| 416 | u16 family, |
| 417 | struct netlbl_audit *audit_info); |
| 418 | int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
| 419 | struct netlbl_audit *audit_info); |
| 420 | void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info); |
| 421 | int netlbl_cfg_cipsov4_map_add(u32 doi, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 422 | const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 423 | const struct in_addr *addr, |
| 424 | const struct in_addr *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 425 | struct netlbl_audit *audit_info); |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 426 | /* |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 427 | * LSM security attribute operations |
| 428 | */ |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 429 | int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset); |
| 430 | int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset); |
| 431 | int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, |
| 432 | u32 *offset, |
| 433 | unsigned long *bitmap); |
| 434 | int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, |
| 435 | u32 bit, |
| 436 | gfp_t flags); |
| 437 | int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, |
| 438 | u32 start, |
| 439 | u32 end, |
| 440 | gfp_t flags); |
| 441 | int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, |
| 442 | u32 offset, |
| 443 | unsigned long bitmap, |
| 444 | gfp_t flags); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 445 | |
Huw Davies | 3faa8f9 | 2016-06-27 15:02:51 -0400 | [diff] [blame] | 446 | /* Bitmap functions |
| 447 | */ |
| 448 | int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len, |
| 449 | u32 offset, u8 state); |
| 450 | void netlbl_bitmap_setbit(unsigned char *bitmap, u32 bit, u8 state); |
| 451 | |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 452 | /* |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 453 | * LSM protocol operations (NetLabel LSM/kernel API) |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 454 | */ |
| 455 | int netlbl_enabled(void); |
| 456 | int netlbl_sock_setattr(struct sock *sk, |
Paul Moore | 389fb800 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 457 | u16 family, |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 458 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 459 | void netlbl_sock_delattr(struct sock *sk); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 460 | int netlbl_sock_getattr(struct sock *sk, |
| 461 | struct netlbl_lsm_secattr *secattr); |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 462 | int netlbl_conn_setattr(struct sock *sk, |
| 463 | struct sockaddr *addr, |
| 464 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 389fb800 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 465 | int netlbl_req_setattr(struct request_sock *req, |
| 466 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 07feee8 | 2009-03-27 17:10:54 -0400 | [diff] [blame] | 467 | void netlbl_req_delattr(struct request_sock *req); |
Paul Moore | 948bf85 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 468 | int netlbl_skbuff_setattr(struct sk_buff *skb, |
| 469 | u16 family, |
| 470 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 471 | int netlbl_skbuff_getattr(const struct sk_buff *skb, |
Paul Moore | 75e2291 | 2008-01-29 08:38:04 -0500 | [diff] [blame] | 472 | u16 family, |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 473 | struct netlbl_lsm_secattr *secattr); |
Paul Moore | dfaebe9 | 2008-10-10 10:16:31 -0400 | [diff] [blame] | 474 | void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 475 | |
| 476 | /* |
| 477 | * LSM label mapping cache operations |
| 478 | */ |
| 479 | void netlbl_cache_invalidate(void); |
| 480 | int netlbl_cache_add(const struct sk_buff *skb, |
| 481 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 482 | |
| 483 | /* |
| 484 | * Protocol engine operations |
| 485 | */ |
| 486 | struct audit_buffer *netlbl_audit_start(int type, |
| 487 | struct netlbl_audit *audit_info); |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 488 | #else |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 489 | static inline int netlbl_cfg_map_del(const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 490 | u16 family, |
| 491 | const void *addr, |
| 492 | const void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 493 | struct netlbl_audit *audit_info) |
| 494 | { |
| 495 | return -ENOSYS; |
| 496 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 497 | static inline int netlbl_cfg_unlbl_map_add(const char *domain, |
| 498 | u16 family, |
| 499 | void *addr, |
| 500 | void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 501 | struct netlbl_audit *audit_info) |
| 502 | { |
| 503 | return -ENOSYS; |
| 504 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 505 | static inline int netlbl_cfg_unlbl_static_add(struct net *net, |
| 506 | const char *dev_name, |
| 507 | const void *addr, |
| 508 | const void *mask, |
| 509 | u16 family, |
| 510 | u32 secid, |
| 511 | struct netlbl_audit *audit_info) |
| 512 | { |
| 513 | return -ENOSYS; |
| 514 | } |
| 515 | static inline int netlbl_cfg_unlbl_static_del(struct net *net, |
| 516 | const char *dev_name, |
| 517 | const void *addr, |
| 518 | const void *mask, |
| 519 | u16 family, |
| 520 | struct netlbl_audit *audit_info) |
| 521 | { |
| 522 | return -ENOSYS; |
| 523 | } |
| 524 | static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
| 525 | struct netlbl_audit *audit_info) |
| 526 | { |
| 527 | return -ENOSYS; |
| 528 | } |
| 529 | static inline void netlbl_cfg_cipsov4_del(u32 doi, |
| 530 | struct netlbl_audit *audit_info) |
| 531 | { |
| 532 | return; |
| 533 | } |
| 534 | static inline int netlbl_cfg_cipsov4_map_add(u32 doi, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 535 | const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 536 | const struct in_addr *addr, |
| 537 | const struct in_addr *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 538 | struct netlbl_audit *audit_info) |
| 539 | { |
| 540 | return -ENOSYS; |
| 541 | } |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 542 | static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, |
| 543 | u32 offset) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 544 | { |
| 545 | return -ENOENT; |
| 546 | } |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 547 | static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, |
| 548 | u32 offset) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 549 | { |
| 550 | return -ENOENT; |
| 551 | } |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 552 | static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap, |
| 553 | u32 *offset, |
| 554 | unsigned long *bitmap) |
Paul Moore | 4b8feff | 2014-08-01 11:17:17 -0400 | [diff] [blame] | 555 | { |
| 556 | return 0; |
| 557 | } |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 558 | static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap, |
| 559 | u32 bit, |
| 560 | gfp_t flags) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 561 | { |
| 562 | return 0; |
| 563 | } |
Paul Moore | 4fbe63d | 2014-08-01 11:17:37 -0400 | [diff] [blame] | 564 | static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap, |
| 565 | u32 start, |
| 566 | u32 end, |
| 567 | gfp_t flags) |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 568 | { |
| 569 | return 0; |
| 570 | } |
Paul Moore | bc7e6ed | 2014-08-07 20:55:21 -0400 | [diff] [blame] | 571 | static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap, |
| 572 | u32 offset, |
| 573 | unsigned long bitmap, |
| 574 | gfp_t flags) |
Paul Moore | 4b8feff | 2014-08-01 11:17:17 -0400 | [diff] [blame] | 575 | { |
| 576 | return 0; |
| 577 | } |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 578 | static inline int netlbl_enabled(void) |
| 579 | { |
| 580 | return 0; |
| 581 | } |
Paul Moore | ba6ff9f | 2007-06-07 18:37:15 -0700 | [diff] [blame] | 582 | static inline int netlbl_sock_setattr(struct sock *sk, |
Paul Moore | 389fb800 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 583 | u16 family, |
| 584 | const struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 585 | { |
| 586 | return -ENOSYS; |
| 587 | } |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 588 | static inline void netlbl_sock_delattr(struct sock *sk) |
| 589 | { |
| 590 | } |
Paul Moore | 14a72f5 | 2006-09-25 15:52:01 -0700 | [diff] [blame] | 591 | static inline int netlbl_sock_getattr(struct sock *sk, |
| 592 | struct netlbl_lsm_secattr *secattr) |
| 593 | { |
| 594 | return -ENOSYS; |
| 595 | } |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 596 | static inline int netlbl_conn_setattr(struct sock *sk, |
| 597 | struct sockaddr *addr, |
| 598 | const struct netlbl_lsm_secattr *secattr) |
| 599 | { |
| 600 | return -ENOSYS; |
| 601 | } |
Paul Moore | 389fb800 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 602 | static inline int netlbl_req_setattr(struct request_sock *req, |
| 603 | const struct netlbl_lsm_secattr *secattr) |
| 604 | { |
| 605 | return -ENOSYS; |
| 606 | } |
Paul Moore | 07feee8 | 2009-03-27 17:10:54 -0400 | [diff] [blame] | 607 | static inline void netlbl_req_delattr(struct request_sock *req) |
| 608 | { |
| 609 | return; |
| 610 | } |
Paul Moore | 948bf85 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 611 | static inline int netlbl_skbuff_setattr(struct sk_buff *skb, |
| 612 | u16 family, |
| 613 | const struct netlbl_lsm_secattr *secattr) |
| 614 | { |
| 615 | return -ENOSYS; |
| 616 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 617 | static inline int netlbl_skbuff_getattr(const struct sk_buff *skb, |
Paul Moore | 75e2291 | 2008-01-29 08:38:04 -0500 | [diff] [blame] | 618 | u16 family, |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 619 | struct netlbl_lsm_secattr *secattr) |
| 620 | { |
| 621 | return -ENOSYS; |
| 622 | } |
Paul Moore | dfaebe9 | 2008-10-10 10:16:31 -0400 | [diff] [blame] | 623 | static inline void netlbl_skbuff_err(struct sk_buff *skb, |
| 624 | int error, |
| 625 | int gateway) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 626 | { |
| 627 | return; |
| 628 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 629 | static inline void netlbl_cache_invalidate(void) |
| 630 | { |
| 631 | return; |
| 632 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 633 | static inline int netlbl_cache_add(const struct sk_buff *skb, |
| 634 | const struct netlbl_lsm_secattr *secattr) |
| 635 | { |
| 636 | return 0; |
| 637 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 638 | static inline struct audit_buffer *netlbl_audit_start(int type, |
| 639 | struct netlbl_audit *audit_info) |
| 640 | { |
| 641 | return NULL; |
| 642 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 643 | #endif /* CONFIG_NETLABEL */ |
| 644 | |
Huw Davies | cb72d38 | 2016-06-27 15:02:46 -0400 | [diff] [blame] | 645 | const struct netlbl_calipso_ops * |
| 646 | netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops); |
| 647 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 648 | #endif /* _NETLABEL_H */ |