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 | * |
| 7 | * Author: Paul Moore <paul.moore@hp.com> |
| 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 |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #ifndef _NETLABEL_H |
| 31 | #define _NETLABEL_H |
| 32 | |
| 33 | #include <linux/types.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 | 389fb80 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 39 | #include <net/request_sock.h> |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 40 | #include <asm/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; |
| 43 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 44 | /* |
| 45 | * NetLabel - A management interface for maintaining network packet label |
| 46 | * mapping tables for explicit packet labling protocols. |
| 47 | * |
| 48 | * Network protocols such as CIPSO and RIPSO require a label translation layer |
| 49 | * to convert the label on the packet into something meaningful on the host |
| 50 | * machine. In the current Linux implementation these mapping tables live |
| 51 | * inside the kernel; NetLabel provides a mechanism for user space applications |
| 52 | * to manage these mapping tables. |
| 53 | * |
| 54 | * NetLabel makes use of the Generic NETLINK mechanism as a transport layer to |
| 55 | * send messages between kernel and user space. The general format of a |
| 56 | * NetLabel message is shown below: |
| 57 | * |
| 58 | * +-----------------+-------------------+--------- --- -- - |
| 59 | * | struct nlmsghdr | struct genlmsghdr | payload |
| 60 | * +-----------------+-------------------+--------- --- -- - |
| 61 | * |
| 62 | * The 'nlmsghdr' and 'genlmsghdr' structs should be dealt with like normal. |
| 63 | * The payload is dependent on the subsystem specified in the |
| 64 | * 'nlmsghdr->nlmsg_type' and should be defined below, supporting functions |
| 65 | * should be defined in the corresponding net/netlabel/netlabel_<subsys>.h|c |
Paul Moore | fcd4828 | 2006-09-25 15:56:09 -0700 | [diff] [blame] | 66 | * file. All of the fields in the NetLabel payload are NETLINK attributes, see |
| 67 | * the include/net/netlink.h file for more information on NETLINK attributes. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 68 | * |
| 69 | */ |
| 70 | |
| 71 | /* |
| 72 | * NetLabel NETLINK protocol |
| 73 | */ |
| 74 | |
Paul Moore | 8cc4457 | 2008-01-29 08:44:21 -0500 | [diff] [blame] | 75 | /* NetLabel NETLINK protocol version |
| 76 | * 1: initial version |
| 77 | * 2: added static labels for unlabeled connections |
Paul Moore | d91d407 | 2008-10-10 10:16:34 -0400 | [diff] [blame] | 78 | * 3: network selectors added to the NetLabel/LSM domain mapping and the |
| 79 | * CIPSO_V4_MAP_LOCAL CIPSO mapping was added |
Paul Moore | 8cc4457 | 2008-01-29 08:44:21 -0500 | [diff] [blame] | 80 | */ |
Paul Moore | 63c4168 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 81 | #define NETLBL_PROTO_VERSION 3 |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 82 | |
| 83 | /* NetLabel NETLINK types/families */ |
| 84 | #define NETLBL_NLTYPE_NONE 0 |
| 85 | #define NETLBL_NLTYPE_MGMT 1 |
| 86 | #define NETLBL_NLTYPE_MGMT_NAME "NLBL_MGMT" |
| 87 | #define NETLBL_NLTYPE_RIPSO 2 |
| 88 | #define NETLBL_NLTYPE_RIPSO_NAME "NLBL_RIPSO" |
| 89 | #define NETLBL_NLTYPE_CIPSOV4 3 |
| 90 | #define NETLBL_NLTYPE_CIPSOV4_NAME "NLBL_CIPSOv4" |
| 91 | #define NETLBL_NLTYPE_CIPSOV6 4 |
| 92 | #define NETLBL_NLTYPE_CIPSOV6_NAME "NLBL_CIPSOv6" |
| 93 | #define NETLBL_NLTYPE_UNLABELED 5 |
| 94 | #define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL" |
Paul Moore | 63c4168 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 95 | #define NETLBL_NLTYPE_ADDRSELECT 6 |
| 96 | #define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL" |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 97 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 98 | /* |
| 99 | * NetLabel - Kernel API for accessing the network packet label mappings. |
| 100 | * |
| 101 | * The following functions are provided for use by other kernel modules, |
| 102 | * specifically kernel LSM modules, to provide a consistent, transparent API |
| 103 | * for dealing with explicit packet labeling protocols such as CIPSO and |
| 104 | * RIPSO. The functions defined here are implemented in the |
| 105 | * net/netlabel/netlabel_kapi.c file. |
| 106 | * |
| 107 | */ |
| 108 | |
Paul Moore | 95d4e6b | 2006-09-29 17:05:05 -0700 | [diff] [blame] | 109 | /* NetLabel audit information */ |
| 110 | struct netlbl_audit { |
| 111 | u32 secid; |
| 112 | uid_t loginuid; |
Eric Paris | 2532386 | 2008-04-18 10:09:25 -0400 | [diff] [blame] | 113 | u32 sessionid; |
Paul Moore | 95d4e6b | 2006-09-29 17:05:05 -0700 | [diff] [blame] | 114 | }; |
| 115 | |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 116 | /* |
| 117 | * LSM security attributes |
| 118 | */ |
| 119 | |
| 120 | /** |
| 121 | * struct netlbl_lsm_cache - NetLabel LSM security attribute cache |
| 122 | * @refcount: atomic reference counter |
| 123 | * @free: LSM supplied function to free the cache data |
| 124 | * @data: LSM supplied cache data |
| 125 | * |
| 126 | * Description: |
| 127 | * This structure is provided for LSMs which wish to make use of the NetLabel |
| 128 | * caching mechanism to store LSM specific data/attributes in the NetLabel |
| 129 | * cache. If the LSM has to perform a lot of translation from the NetLabel |
| 130 | * security attributes into it's own internal representation then the cache |
| 131 | * mechanism can provide a way to eliminate some or all of that translation |
| 132 | * overhead on a cache hit. |
| 133 | * |
| 134 | */ |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 135 | struct netlbl_lsm_cache { |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 136 | atomic_t refcount; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 137 | void (*free) (const void *data); |
| 138 | void *data; |
| 139 | }; |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 140 | |
| 141 | /** |
| 142 | * struct netlbl_lsm_secattr_catmap - NetLabel LSM secattr category bitmap |
| 143 | * @startbit: the value of the lowest order bit in the bitmap |
| 144 | * @bitmap: the category bitmap |
| 145 | * @next: pointer to the next bitmap "node" or NULL |
| 146 | * |
| 147 | * Description: |
| 148 | * This structure is used to represent category bitmaps. Due to the large |
| 149 | * number of categories supported by most labeling protocols it is not |
| 150 | * practical to transfer a full bitmap internally so NetLabel adopts a sparse |
| 151 | * bitmap structure modeled after SELinux's ebitmap structure. |
| 152 | * 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] | 153 | * enough to hold at least 240 bits. Special care (i.e. check the code!) |
| 154 | * should be used when changing these values as the LSM implementation |
| 155 | * 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] | 156 | * processing. |
| 157 | * |
| 158 | */ |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 159 | #define NETLBL_CATMAP_MAPTYPE u64 |
| 160 | #define NETLBL_CATMAP_MAPCNT 4 |
| 161 | #define NETLBL_CATMAP_MAPSIZE (sizeof(NETLBL_CATMAP_MAPTYPE) * 8) |
| 162 | #define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \ |
| 163 | NETLBL_CATMAP_MAPCNT) |
| 164 | #define NETLBL_CATMAP_BIT (NETLBL_CATMAP_MAPTYPE)0x01 |
| 165 | struct netlbl_lsm_secattr_catmap { |
| 166 | u32 startbit; |
| 167 | NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT]; |
| 168 | struct netlbl_lsm_secattr_catmap *next; |
| 169 | }; |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 170 | |
| 171 | /** |
| 172 | * struct netlbl_lsm_secattr - NetLabel LSM security attributes |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 173 | * @flags: indicate structure attributes, see NETLBL_SECATTR_* |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 174 | * @type: indicate the NLTYPE of the attributes |
| 175 | * @domain: the NetLabel LSM domain |
| 176 | * @cache: NetLabel LSM specific cache |
| 177 | * @attr.mls: MLS sensitivity label |
| 178 | * @attr.mls.cat: MLS category bitmap |
| 179 | * @attr.mls.lvl: MLS sensitivity level |
| 180 | * @attr.secid: LSM specific secid token |
| 181 | * |
| 182 | * Description: |
| 183 | * This structure is used to pass security attributes between NetLabel and the |
| 184 | * LSM modules. The flags field is used to specify which fields within the |
| 185 | * struct are valid and valid values can be created by bitwise OR'ing the |
| 186 | * NETLBL_SECATTR_* defines. The domain field is typically set by the LSM to |
| 187 | * specify domain specific configuration settings and is not usually used by |
| 188 | * NetLabel itself when returning security attributes to the LSM. |
| 189 | * |
| 190 | */ |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 191 | struct netlbl_lsm_secattr { |
| 192 | u32 flags; |
| 193 | /* bitmap values for 'flags' */ |
Paul Moore | 701a90b | 2006-11-17 17:38:46 -0500 | [diff] [blame] | 194 | #define NETLBL_SECATTR_NONE 0x00000000 |
| 195 | #define NETLBL_SECATTR_DOMAIN 0x00000001 |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 196 | #define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \ |
| 197 | NETLBL_SECATTR_FREE_DOMAIN) |
Paul Moore | 701a90b | 2006-11-17 17:38:46 -0500 | [diff] [blame] | 198 | #define NETLBL_SECATTR_CACHE 0x00000002 |
| 199 | #define NETLBL_SECATTR_MLS_LVL 0x00000004 |
| 200 | #define NETLBL_SECATTR_MLS_CAT 0x00000008 |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 201 | #define NETLBL_SECATTR_SECID 0x00000010 |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 202 | /* bitmap meta-values for 'flags' */ |
| 203 | #define NETLBL_SECATTR_FREE_DOMAIN 0x01000000 |
Paul Moore | 9534f71 | 2007-07-30 16:33:26 -0400 | [diff] [blame] | 204 | #define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \ |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 205 | NETLBL_SECATTR_MLS_CAT | \ |
| 206 | NETLBL_SECATTR_SECID) |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 207 | u32 type; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 208 | char *domain; |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 209 | struct netlbl_lsm_cache *cache; |
Paul Moore | 8d75899 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 210 | struct { |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 211 | struct { |
| 212 | struct netlbl_lsm_secattr_catmap *cat; |
| 213 | u32 lvl; |
| 214 | } mls; |
| 215 | u32 secid; |
| 216 | } attr; |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 217 | }; |
| 218 | |
| 219 | /* |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 220 | * LSM security attribute operations (inline) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 221 | */ |
| 222 | |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 223 | /** |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 224 | * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache |
| 225 | * @flags: the memory allocation flags |
| 226 | * |
| 227 | * Description: |
| 228 | * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer |
| 229 | * on success, NULL on failure. |
| 230 | * |
| 231 | */ |
Al Viro | 645408d | 2006-10-14 16:50:38 +0100 | [diff] [blame] | 232 | 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] | 233 | { |
| 234 | struct netlbl_lsm_cache *cache; |
| 235 | |
| 236 | cache = kzalloc(sizeof(*cache), flags); |
| 237 | if (cache) |
| 238 | atomic_set(&cache->refcount, 1); |
| 239 | return cache; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct |
| 244 | * @cache: the struct to free |
| 245 | * |
| 246 | * Description: |
| 247 | * Frees @secattr including all of the internal buffers. |
| 248 | * |
| 249 | */ |
| 250 | static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache) |
| 251 | { |
| 252 | if (!atomic_dec_and_test(&cache->refcount)) |
| 253 | return; |
| 254 | |
| 255 | if (cache->free) |
| 256 | cache->free(cache->data); |
| 257 | kfree(cache); |
| 258 | } |
| 259 | |
| 260 | /** |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 261 | * netlbl_secattr_catmap_alloc - Allocate a LSM secattr catmap |
| 262 | * @flags: memory allocation flags |
| 263 | * |
| 264 | * Description: |
| 265 | * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL |
| 266 | * on failure. |
| 267 | * |
| 268 | */ |
| 269 | static inline struct netlbl_lsm_secattr_catmap *netlbl_secattr_catmap_alloc( |
| 270 | gfp_t flags) |
| 271 | { |
| 272 | return kzalloc(sizeof(struct netlbl_lsm_secattr_catmap), flags); |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * netlbl_secattr_catmap_free - Free a LSM secattr catmap |
| 277 | * @catmap: the category bitmap |
| 278 | * |
| 279 | * Description: |
| 280 | * Free a LSM secattr catmap. |
| 281 | * |
| 282 | */ |
| 283 | static inline void netlbl_secattr_catmap_free( |
| 284 | struct netlbl_lsm_secattr_catmap *catmap) |
| 285 | { |
| 286 | struct netlbl_lsm_secattr_catmap *iter; |
| 287 | |
| 288 | do { |
| 289 | iter = catmap; |
| 290 | catmap = catmap->next; |
| 291 | kfree(iter); |
| 292 | } while (catmap); |
| 293 | } |
| 294 | |
| 295 | /** |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 296 | * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct |
| 297 | * @secattr: the struct to initialize |
| 298 | * |
| 299 | * Description: |
Paul Moore | c6fa82a | 2006-11-17 17:38:45 -0500 | [diff] [blame] | 300 | * Initialize an already allocated netlbl_lsm_secattr struct. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 301 | * |
| 302 | */ |
Paul Moore | c6fa82a | 2006-11-17 17:38:45 -0500 | [diff] [blame] | 303 | static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 304 | { |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 305 | memset(secattr, 0, sizeof(*secattr)); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | /** |
| 309 | * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct |
| 310 | * @secattr: the struct to clear |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 311 | * |
| 312 | * Description: |
| 313 | * 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] | 314 | * 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] | 315 | * |
| 316 | */ |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 317 | static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 318 | { |
Paul Moore | 0044787 | 2008-04-12 19:06:42 -0700 | [diff] [blame] | 319 | if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN) |
| 320 | kfree(secattr->domain); |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 321 | if (secattr->flags & NETLBL_SECATTR_CACHE) |
| 322 | netlbl_secattr_cache_free(secattr->cache); |
| 323 | if (secattr->flags & NETLBL_SECATTR_MLS_CAT) |
| 324 | netlbl_secattr_catmap_free(secattr->attr.mls.cat); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | /** |
| 328 | * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct |
| 329 | * @flags: the memory allocation flags |
| 330 | * |
| 331 | * Description: |
| 332 | * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid |
| 333 | * pointer on success, or NULL on failure. |
| 334 | * |
| 335 | */ |
Paul Moore | 1f758d9 | 2006-11-17 17:38:43 -0500 | [diff] [blame] | 336 | static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 337 | { |
| 338 | return kzalloc(sizeof(struct netlbl_lsm_secattr), flags); |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct |
| 343 | * @secattr: the struct to free |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 344 | * |
| 345 | * Description: |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 346 | * Frees @secattr including all of the internal buffers. |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 347 | * |
| 348 | */ |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 349 | static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 350 | { |
paul.moore@hp.com | ffb733c | 2006-10-04 11:46:31 -0400 | [diff] [blame] | 351 | netlbl_secattr_destroy(secattr); |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 352 | kfree(secattr); |
| 353 | } |
| 354 | |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 355 | #ifdef CONFIG_NETLABEL |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 356 | /* |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 357 | * LSM configuration operations |
| 358 | */ |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 359 | int netlbl_cfg_map_del(const char *domain, |
| 360 | u16 family, |
| 361 | const void *addr, |
| 362 | const void *mask, |
| 363 | struct netlbl_audit *audit_info); |
| 364 | int netlbl_cfg_unlbl_map_add(const char *domain, |
| 365 | u16 family, |
| 366 | const void *addr, |
| 367 | const void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 368 | struct netlbl_audit *audit_info); |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 369 | int netlbl_cfg_unlbl_static_add(struct net *net, |
| 370 | const char *dev_name, |
| 371 | const void *addr, |
| 372 | const void *mask, |
| 373 | u16 family, |
| 374 | u32 secid, |
| 375 | struct netlbl_audit *audit_info); |
| 376 | int netlbl_cfg_unlbl_static_del(struct net *net, |
| 377 | const char *dev_name, |
| 378 | const void *addr, |
| 379 | const void *mask, |
| 380 | u16 family, |
| 381 | struct netlbl_audit *audit_info); |
| 382 | int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
| 383 | struct netlbl_audit *audit_info); |
| 384 | void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info); |
| 385 | int netlbl_cfg_cipsov4_map_add(u32 doi, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 386 | const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 387 | const struct in_addr *addr, |
| 388 | const struct in_addr *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 389 | struct netlbl_audit *audit_info); |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 390 | /* |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 391 | * LSM security attribute operations |
| 392 | */ |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 393 | int netlbl_secattr_catmap_walk(struct netlbl_lsm_secattr_catmap *catmap, |
| 394 | u32 offset); |
| 395 | int netlbl_secattr_catmap_walk_rng(struct netlbl_lsm_secattr_catmap *catmap, |
| 396 | u32 offset); |
| 397 | int netlbl_secattr_catmap_setbit(struct netlbl_lsm_secattr_catmap *catmap, |
| 398 | u32 bit, |
| 399 | gfp_t flags); |
| 400 | int netlbl_secattr_catmap_setrng(struct netlbl_lsm_secattr_catmap *catmap, |
| 401 | u32 start, |
| 402 | u32 end, |
| 403 | gfp_t flags); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 404 | |
| 405 | /* |
Paul Moore | 16efd45 | 2008-01-29 08:37:59 -0500 | [diff] [blame] | 406 | * LSM protocol operations (NetLabel LSM/kernel API) |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 407 | */ |
| 408 | int netlbl_enabled(void); |
| 409 | int netlbl_sock_setattr(struct sock *sk, |
Paul Moore | 389fb80 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 410 | u16 family, |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 411 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 412 | void netlbl_sock_delattr(struct sock *sk); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 413 | int netlbl_sock_getattr(struct sock *sk, |
| 414 | struct netlbl_lsm_secattr *secattr); |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 415 | int netlbl_conn_setattr(struct sock *sk, |
| 416 | struct sockaddr *addr, |
| 417 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 389fb80 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 418 | int netlbl_req_setattr(struct request_sock *req, |
| 419 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 07feee8 | 2009-03-27 17:10:54 -0400 | [diff] [blame] | 420 | void netlbl_req_delattr(struct request_sock *req); |
Paul Moore | 948bf85 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 421 | int netlbl_skbuff_setattr(struct sk_buff *skb, |
| 422 | u16 family, |
| 423 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 424 | int netlbl_skbuff_getattr(const struct sk_buff *skb, |
Paul Moore | 75e2291 | 2008-01-29 08:38:04 -0500 | [diff] [blame] | 425 | u16 family, |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 426 | struct netlbl_lsm_secattr *secattr); |
Paul Moore | dfaebe9 | 2008-10-10 10:16:31 -0400 | [diff] [blame] | 427 | void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway); |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 428 | |
| 429 | /* |
| 430 | * LSM label mapping cache operations |
| 431 | */ |
| 432 | void netlbl_cache_invalidate(void); |
| 433 | int netlbl_cache_add(const struct sk_buff *skb, |
| 434 | const struct netlbl_lsm_secattr *secattr); |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 435 | |
| 436 | /* |
| 437 | * Protocol engine operations |
| 438 | */ |
| 439 | struct audit_buffer *netlbl_audit_start(int type, |
| 440 | struct netlbl_audit *audit_info); |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 441 | #else |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 442 | static inline int netlbl_cfg_map_del(const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 443 | u16 family, |
| 444 | const void *addr, |
| 445 | const void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 446 | struct netlbl_audit *audit_info) |
| 447 | { |
| 448 | return -ENOSYS; |
| 449 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 450 | static inline int netlbl_cfg_unlbl_map_add(const char *domain, |
| 451 | u16 family, |
| 452 | void *addr, |
| 453 | void *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 454 | struct netlbl_audit *audit_info) |
| 455 | { |
| 456 | return -ENOSYS; |
| 457 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 458 | static inline int netlbl_cfg_unlbl_static_add(struct net *net, |
| 459 | const char *dev_name, |
| 460 | const void *addr, |
| 461 | const void *mask, |
| 462 | u16 family, |
| 463 | u32 secid, |
| 464 | struct netlbl_audit *audit_info) |
| 465 | { |
| 466 | return -ENOSYS; |
| 467 | } |
| 468 | static inline int netlbl_cfg_unlbl_static_del(struct net *net, |
| 469 | const char *dev_name, |
| 470 | const void *addr, |
| 471 | const void *mask, |
| 472 | u16 family, |
| 473 | struct netlbl_audit *audit_info) |
| 474 | { |
| 475 | return -ENOSYS; |
| 476 | } |
| 477 | static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def, |
| 478 | struct netlbl_audit *audit_info) |
| 479 | { |
| 480 | return -ENOSYS; |
| 481 | } |
| 482 | static inline void netlbl_cfg_cipsov4_del(u32 doi, |
| 483 | struct netlbl_audit *audit_info) |
| 484 | { |
| 485 | return; |
| 486 | } |
| 487 | static inline int netlbl_cfg_cipsov4_map_add(u32 doi, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 488 | const char *domain, |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 489 | const struct in_addr *addr, |
| 490 | const struct in_addr *mask, |
Paul Moore | eda61d3 | 2008-02-04 22:29:47 -0800 | [diff] [blame] | 491 | struct netlbl_audit *audit_info) |
| 492 | { |
| 493 | return -ENOSYS; |
| 494 | } |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 495 | static inline int netlbl_secattr_catmap_walk( |
| 496 | struct netlbl_lsm_secattr_catmap *catmap, |
| 497 | u32 offset) |
| 498 | { |
| 499 | return -ENOENT; |
| 500 | } |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 501 | static inline int netlbl_secattr_catmap_walk_rng( |
| 502 | struct netlbl_lsm_secattr_catmap *catmap, |
| 503 | u32 offset) |
| 504 | { |
| 505 | return -ENOENT; |
| 506 | } |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 507 | static inline int netlbl_secattr_catmap_setbit( |
| 508 | struct netlbl_lsm_secattr_catmap *catmap, |
| 509 | u32 bit, |
| 510 | gfp_t flags) |
| 511 | { |
| 512 | return 0; |
| 513 | } |
Paul Moore | 0275276 | 2006-11-29 13:18:18 -0500 | [diff] [blame] | 514 | static inline int netlbl_secattr_catmap_setrng( |
| 515 | struct netlbl_lsm_secattr_catmap *catmap, |
| 516 | u32 start, |
| 517 | u32 end, |
| 518 | gfp_t flags) |
| 519 | { |
| 520 | return 0; |
| 521 | } |
Paul Moore | 23bcdc1 | 2007-07-18 12:28:45 -0400 | [diff] [blame] | 522 | static inline int netlbl_enabled(void) |
| 523 | { |
| 524 | return 0; |
| 525 | } |
Paul Moore | ba6ff9f | 2007-06-07 18:37:15 -0700 | [diff] [blame] | 526 | static inline int netlbl_sock_setattr(struct sock *sk, |
Paul Moore | 389fb80 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 527 | u16 family, |
| 528 | const struct netlbl_lsm_secattr *secattr) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 529 | { |
| 530 | return -ENOSYS; |
| 531 | } |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 532 | static inline void netlbl_sock_delattr(struct sock *sk) |
| 533 | { |
| 534 | } |
Paul Moore | 14a72f5 | 2006-09-25 15:52:01 -0700 | [diff] [blame] | 535 | static inline int netlbl_sock_getattr(struct sock *sk, |
| 536 | struct netlbl_lsm_secattr *secattr) |
| 537 | { |
| 538 | return -ENOSYS; |
| 539 | } |
Paul Moore | 014ab19 | 2008-10-10 10:16:33 -0400 | [diff] [blame] | 540 | static inline int netlbl_conn_setattr(struct sock *sk, |
| 541 | struct sockaddr *addr, |
| 542 | const struct netlbl_lsm_secattr *secattr) |
| 543 | { |
| 544 | return -ENOSYS; |
| 545 | } |
Paul Moore | 389fb80 | 2009-03-27 17:10:34 -0400 | [diff] [blame] | 546 | static inline int netlbl_req_setattr(struct request_sock *req, |
| 547 | const struct netlbl_lsm_secattr *secattr) |
| 548 | { |
| 549 | return -ENOSYS; |
| 550 | } |
Paul Moore | 07feee8 | 2009-03-27 17:10:54 -0400 | [diff] [blame] | 551 | static inline void netlbl_req_delattr(struct request_sock *req) |
| 552 | { |
| 553 | return; |
| 554 | } |
Paul Moore | 948bf85 | 2008-10-10 10:16:32 -0400 | [diff] [blame] | 555 | static inline int netlbl_skbuff_setattr(struct sk_buff *skb, |
| 556 | u16 family, |
| 557 | const struct netlbl_lsm_secattr *secattr) |
| 558 | { |
| 559 | return -ENOSYS; |
| 560 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 561 | static inline int netlbl_skbuff_getattr(const struct sk_buff *skb, |
Paul Moore | 75e2291 | 2008-01-29 08:38:04 -0500 | [diff] [blame] | 562 | u16 family, |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 563 | struct netlbl_lsm_secattr *secattr) |
| 564 | { |
| 565 | return -ENOSYS; |
| 566 | } |
Paul Moore | dfaebe9 | 2008-10-10 10:16:31 -0400 | [diff] [blame] | 567 | static inline void netlbl_skbuff_err(struct sk_buff *skb, |
| 568 | int error, |
| 569 | int gateway) |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 570 | { |
| 571 | return; |
| 572 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 573 | static inline void netlbl_cache_invalidate(void) |
| 574 | { |
| 575 | return; |
| 576 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 577 | static inline int netlbl_cache_add(const struct sk_buff *skb, |
| 578 | const struct netlbl_lsm_secattr *secattr) |
| 579 | { |
| 580 | return 0; |
| 581 | } |
Paul Moore | 6c2e8ac | 2008-12-31 12:54:11 -0500 | [diff] [blame] | 582 | static inline struct audit_buffer *netlbl_audit_start(int type, |
| 583 | struct netlbl_audit *audit_info) |
| 584 | { |
| 585 | return NULL; |
| 586 | } |
Paul Moore | 11a03f7 | 2006-08-03 16:46:20 -0700 | [diff] [blame] | 587 | #endif /* CONFIG_NETLABEL */ |
| 588 | |
| 589 | #endif /* _NETLABEL_H */ |