root/include/net/netlabel.h

INCLUDED FROM

DEFINITIONS

1. netlbl_secattr_cache_alloc
2. netlbl_secattr_cache_free
3. netlbl_catmap_alloc
4. netlbl_catmap_free
5. netlbl_secattr_init
6. netlbl_secattr_destroy
7. netlbl_secattr_alloc
8. netlbl_secattr_free
9. netlbl_cfg_map_del
10. netlbl_cfg_unlbl_map_add
11. netlbl_cfg_unlbl_static_add
12. netlbl_cfg_unlbl_static_del
13. netlbl_cfg_cipsov4_add
14. netlbl_cfg_cipsov4_del
15. netlbl_cfg_cipsov4_map_add
16. netlbl_cfg_calipso_add
17. netlbl_cfg_calipso_del
18. netlbl_cfg_calipso_map_add
19. netlbl_catmap_walk
20. netlbl_catmap_walkrng
21. netlbl_catmap_getlong
22. netlbl_catmap_setbit
23. netlbl_catmap_setrng
24. netlbl_catmap_setlong
25. netlbl_enabled
26. netlbl_sock_setattr
27. netlbl_sock_delattr
28. netlbl_sock_getattr
29. netlbl_conn_setattr
30. netlbl_req_setattr
31. netlbl_req_delattr
32. netlbl_skbuff_setattr
33. netlbl_skbuff_getattr
34. netlbl_skbuff_err
35. netlbl_cache_invalidate
36. netlbl_cache_add
37. netlbl_audit_start

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