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-rw-r--r--include/net/netlabel.h682
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diff --git a/include/net/netlabel.h b/include/net/netlabel.h
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+++ b/include/net/netlabel.h
@@ -0,0 +1,682 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * NetLabel System
+ *
+ * The NetLabel system manages static and dynamic label mappings for network
+ * protocols such as CIPSO and RIPSO.
+ *
+ * Author: Paul Moore <paul@paul-moore.com>
+ */
+
+/*
+ * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
+ */
+
+#ifndef _NETLABEL_H
+#define _NETLABEL_H
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <net/netlink.h>
+#include <net/request_sock.h>
+#include <linux/refcount.h>
+
+struct cipso_v4_doi;
+struct calipso_doi;
+
+/*
+ * NetLabel - A management interface for maintaining network packet label
+ * mapping tables for explicit packet labling protocols.
+ *
+ * Network protocols such as CIPSO and RIPSO require a label translation layer
+ * to convert the label on the packet into something meaningful on the host
+ * machine. In the current Linux implementation these mapping tables live
+ * inside the kernel; NetLabel provides a mechanism for user space applications
+ * to manage these mapping tables.
+ *
+ * NetLabel makes use of the Generic NETLINK mechanism as a transport layer to
+ * send messages between kernel and user space. The general format of a
+ * NetLabel message is shown below:
+ *
+ * +-----------------+-------------------+--------- --- -- -
+ * | struct nlmsghdr | struct genlmsghdr | payload
+ * +-----------------+-------------------+--------- --- -- -
+ *
+ * The 'nlmsghdr' and 'genlmsghdr' structs should be dealt with like normal.
+ * The payload is dependent on the subsystem specified in the
+ * 'nlmsghdr->nlmsg_type' and should be defined below, supporting functions
+ * should be defined in the corresponding net/netlabel/netlabel_<subsys>.h|c
+ * file. All of the fields in the NetLabel payload are NETLINK attributes, see
+ * the include/net/netlink.h file for more information on NETLINK attributes.
+ *
+ */
+
+/*
+ * NetLabel NETLINK protocol
+ */
+
+/* NetLabel NETLINK protocol version
+ * 1: initial version
+ * 2: added static labels for unlabeled connections
+ * 3: network selectors added to the NetLabel/LSM domain mapping and the
+ * CIPSO_V4_MAP_LOCAL CIPSO mapping was added
+ */
+#define NETLBL_PROTO_VERSION 3
+
+/* NetLabel NETLINK types/families */
+#define NETLBL_NLTYPE_NONE 0
+#define NETLBL_NLTYPE_MGMT 1
+#define NETLBL_NLTYPE_MGMT_NAME "NLBL_MGMT"
+#define NETLBL_NLTYPE_RIPSO 2
+#define NETLBL_NLTYPE_RIPSO_NAME "NLBL_RIPSO"
+#define NETLBL_NLTYPE_CIPSOV4 3
+#define NETLBL_NLTYPE_CIPSOV4_NAME "NLBL_CIPSOv4"
+#define NETLBL_NLTYPE_CIPSOV6 4
+#define NETLBL_NLTYPE_CIPSOV6_NAME "NLBL_CIPSOv6"
+#define NETLBL_NLTYPE_UNLABELED 5
+#define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL"
+#define NETLBL_NLTYPE_ADDRSELECT 6
+#define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL"
+#define NETLBL_NLTYPE_CALIPSO 7
+#define NETLBL_NLTYPE_CALIPSO_NAME "NLBL_CALIPSO"
+
+/*
+ * NetLabel - Kernel API for accessing the network packet label mappings.
+ *
+ * The following functions are provided for use by other kernel modules,
+ * specifically kernel LSM modules, to provide a consistent, transparent API
+ * for dealing with explicit packet labeling protocols such as CIPSO and
+ * RIPSO. The functions defined here are implemented in the
+ * net/netlabel/netlabel_kapi.c file.
+ *
+ */
+
+/* NetLabel audit information */
+struct netlbl_audit {
+ u32 secid;
+ kuid_t loginuid;
+ unsigned int sessionid;
+};
+
+/*
+ * LSM security attributes
+ */
+
+/**
+ * struct netlbl_lsm_cache - NetLabel LSM security attribute cache
+ * @refcount: atomic reference counter
+ * @free: LSM supplied function to free the cache data
+ * @data: LSM supplied cache data
+ *
+ * Description:
+ * This structure is provided for LSMs which wish to make use of the NetLabel
+ * caching mechanism to store LSM specific data/attributes in the NetLabel
+ * cache. If the LSM has to perform a lot of translation from the NetLabel
+ * security attributes into it's own internal representation then the cache
+ * mechanism can provide a way to eliminate some or all of that translation
+ * overhead on a cache hit.
+ *
+ */
+struct netlbl_lsm_cache {
+ refcount_t refcount;
+ void (*free) (const void *data);
+ void *data;
+};
+
+/**
+ * struct netlbl_lsm_catmap - NetLabel LSM secattr category bitmap
+ * @startbit: the value of the lowest order bit in the bitmap
+ * @bitmap: the category bitmap
+ * @next: pointer to the next bitmap "node" or NULL
+ *
+ * Description:
+ * This structure is used to represent category bitmaps. Due to the large
+ * number of categories supported by most labeling protocols it is not
+ * practical to transfer a full bitmap internally so NetLabel adopts a sparse
+ * bitmap structure modeled after SELinux's ebitmap structure.
+ * The catmap bitmap field MUST be a power of two in length and large
+ * enough to hold at least 240 bits. Special care (i.e. check the code!)
+ * should be used when changing these values as the LSM implementation
+ * probably has functions which rely on the sizes of these types to speed
+ * processing.
+ *
+ */
+#define NETLBL_CATMAP_MAPTYPE u64
+#define NETLBL_CATMAP_MAPCNT 4
+#define NETLBL_CATMAP_MAPSIZE (sizeof(NETLBL_CATMAP_MAPTYPE) * 8)
+#define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \
+ NETLBL_CATMAP_MAPCNT)
+#define NETLBL_CATMAP_BIT (NETLBL_CATMAP_MAPTYPE)0x01
+struct netlbl_lsm_catmap {
+ u32 startbit;
+ NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT];
+ struct netlbl_lsm_catmap *next;
+};
+
+/**
+ * struct netlbl_lsm_secattr - NetLabel LSM security attributes
+ * @flags: indicate structure attributes, see NETLBL_SECATTR_*
+ * @type: indicate the NLTYPE of the attributes
+ * @domain: the NetLabel LSM domain
+ * @cache: NetLabel LSM specific cache
+ * @attr.mls: MLS sensitivity label
+ * @attr.mls.cat: MLS category bitmap
+ * @attr.mls.lvl: MLS sensitivity level
+ * @attr.secid: LSM specific secid token
+ *
+ * Description:
+ * This structure is used to pass security attributes between NetLabel and the
+ * LSM modules. The flags field is used to specify which fields within the
+ * struct are valid and valid values can be created by bitwise OR'ing the
+ * NETLBL_SECATTR_* defines. The domain field is typically set by the LSM to
+ * specify domain specific configuration settings and is not usually used by
+ * NetLabel itself when returning security attributes to the LSM.
+ *
+ */
+struct netlbl_lsm_secattr {
+ u32 flags;
+ /* bitmap values for 'flags' */
+#define NETLBL_SECATTR_NONE 0x00000000
+#define NETLBL_SECATTR_DOMAIN 0x00000001
+#define NETLBL_SECATTR_DOMAIN_CPY (NETLBL_SECATTR_DOMAIN | \
+ NETLBL_SECATTR_FREE_DOMAIN)
+#define NETLBL_SECATTR_CACHE 0x00000002
+#define NETLBL_SECATTR_MLS_LVL 0x00000004
+#define NETLBL_SECATTR_MLS_CAT 0x00000008
+#define NETLBL_SECATTR_SECID 0x00000010
+ /* bitmap meta-values for 'flags' */
+#define NETLBL_SECATTR_FREE_DOMAIN 0x01000000
+#define NETLBL_SECATTR_CACHEABLE (NETLBL_SECATTR_MLS_LVL | \
+ NETLBL_SECATTR_MLS_CAT | \
+ NETLBL_SECATTR_SECID)
+ u32 type;
+ char *domain;
+ struct netlbl_lsm_cache *cache;
+ struct {
+ struct {
+ struct netlbl_lsm_catmap *cat;
+ u32 lvl;
+ } mls;
+ u32 secid;
+ } attr;
+};
+
+/**
+ * struct netlbl_calipso_ops - NetLabel CALIPSO operations
+ * @doi_add: add a CALIPSO DOI
+ * @doi_free: free a CALIPSO DOI
+ * @doi_getdef: returns a reference to a DOI
+ * @doi_putdef: releases a reference of a DOI
+ * @doi_walk: enumerate the DOI list
+ * @sock_getattr: retrieve the socket's attr
+ * @sock_setattr: set the socket's attr
+ * @sock_delattr: remove the socket's attr
+ * @req_setattr: set the req socket's attr
+ * @req_delattr: remove the req socket's attr
+ * @opt_getattr: retrieve attr from memory block
+ * @skbuff_optptr: find option in packet
+ * @skbuff_setattr: set the skbuff's attr
+ * @skbuff_delattr: remove the skbuff's attr
+ * @cache_invalidate: invalidate cache
+ * @cache_add: add cache entry
+ *
+ * Description:
+ * This structure is filled out by the CALIPSO engine and passed
+ * to the NetLabel core via a call to netlbl_calipso_ops_register().
+ * It enables the CALIPSO engine (and hence IPv6) to be compiled
+ * as a module.
+ */
+struct netlbl_calipso_ops {
+ int (*doi_add)(struct calipso_doi *doi_def,
+ struct netlbl_audit *audit_info);
+ void (*doi_free)(struct calipso_doi *doi_def);
+ int (*doi_remove)(u32 doi, struct netlbl_audit *audit_info);
+ struct calipso_doi *(*doi_getdef)(u32 doi);
+ void (*doi_putdef)(struct calipso_doi *doi_def);
+ int (*doi_walk)(u32 *skip_cnt,
+ int (*callback)(struct calipso_doi *doi_def, void *arg),
+ void *cb_arg);
+ int (*sock_getattr)(struct sock *sk,
+ struct netlbl_lsm_secattr *secattr);
+ int (*sock_setattr)(struct sock *sk,
+ const struct calipso_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr);
+ void (*sock_delattr)(struct sock *sk);
+ int (*req_setattr)(struct request_sock *req,
+ const struct calipso_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr);
+ void (*req_delattr)(struct request_sock *req);
+ int (*opt_getattr)(const unsigned char *calipso,
+ struct netlbl_lsm_secattr *secattr);
+ unsigned char *(*skbuff_optptr)(const struct sk_buff *skb);
+ int (*skbuff_setattr)(struct sk_buff *skb,
+ const struct calipso_doi *doi_def,
+ const struct netlbl_lsm_secattr *secattr);
+ int (*skbuff_delattr)(struct sk_buff *skb);
+ void (*cache_invalidate)(void);
+ int (*cache_add)(const unsigned char *calipso_ptr,
+ const struct netlbl_lsm_secattr *secattr);
+};
+
+/*
+ * LSM security attribute operations (inline)
+ */
+
+/**
+ * netlbl_secattr_cache_alloc - Allocate and initialize a secattr cache
+ * @flags: the memory allocation flags
+ *
+ * Description:
+ * Allocate and initialize a netlbl_lsm_cache structure. Returns a pointer
+ * on success, NULL on failure.
+ *
+ */
+static inline struct netlbl_lsm_cache *netlbl_secattr_cache_alloc(gfp_t flags)
+{
+ struct netlbl_lsm_cache *cache;
+
+ cache = kzalloc(sizeof(*cache), flags);
+ if (cache)
+ refcount_set(&cache->refcount, 1);
+ return cache;
+}
+
+/**
+ * netlbl_secattr_cache_free - Frees a netlbl_lsm_cache struct
+ * @cache: the struct to free
+ *
+ * Description:
+ * Frees @secattr including all of the internal buffers.
+ *
+ */
+static inline void netlbl_secattr_cache_free(struct netlbl_lsm_cache *cache)
+{
+ if (!refcount_dec_and_test(&cache->refcount))
+ return;
+
+ if (cache->free)
+ cache->free(cache->data);
+ kfree(cache);
+}
+
+/**
+ * netlbl_catmap_alloc - Allocate a LSM secattr catmap
+ * @flags: memory allocation flags
+ *
+ * Description:
+ * Allocate memory for a LSM secattr catmap, returns a pointer on success, NULL
+ * on failure.
+ *
+ */
+static inline struct netlbl_lsm_catmap *netlbl_catmap_alloc(gfp_t flags)
+{
+ return kzalloc(sizeof(struct netlbl_lsm_catmap), flags);
+}
+
+/**
+ * netlbl_catmap_free - Free a LSM secattr catmap
+ * @catmap: the category bitmap
+ *
+ * Description:
+ * Free a LSM secattr catmap.
+ *
+ */
+static inline void netlbl_catmap_free(struct netlbl_lsm_catmap *catmap)
+{
+ struct netlbl_lsm_catmap *iter;
+
+ while (catmap) {
+ iter = catmap;
+ catmap = catmap->next;
+ kfree(iter);
+ }
+}
+
+/**
+ * netlbl_secattr_init - Initialize a netlbl_lsm_secattr struct
+ * @secattr: the struct to initialize
+ *
+ * Description:
+ * Initialize an already allocated netlbl_lsm_secattr struct.
+ *
+ */
+static inline void netlbl_secattr_init(struct netlbl_lsm_secattr *secattr)
+{
+ memset(secattr, 0, sizeof(*secattr));
+}
+
+/**
+ * netlbl_secattr_destroy - Clears a netlbl_lsm_secattr struct
+ * @secattr: the struct to clear
+ *
+ * Description:
+ * Destroys the @secattr struct, including freeing all of the internal buffers.
+ * The struct must be reset with a call to netlbl_secattr_init() before reuse.
+ *
+ */
+static inline void netlbl_secattr_destroy(struct netlbl_lsm_secattr *secattr)
+{
+ if (secattr->flags & NETLBL_SECATTR_FREE_DOMAIN)
+ kfree(secattr->domain);
+ if (secattr->flags & NETLBL_SECATTR_CACHE)
+ netlbl_secattr_cache_free(secattr->cache);
+ if (secattr->flags & NETLBL_SECATTR_MLS_CAT)
+ netlbl_catmap_free(secattr->attr.mls.cat);
+}
+
+/**
+ * netlbl_secattr_alloc - Allocate and initialize a netlbl_lsm_secattr struct
+ * @flags: the memory allocation flags
+ *
+ * Description:
+ * Allocate and initialize a netlbl_lsm_secattr struct. Returns a valid
+ * pointer on success, or NULL on failure.
+ *
+ */
+static inline struct netlbl_lsm_secattr *netlbl_secattr_alloc(gfp_t flags)
+{
+ return kzalloc(sizeof(struct netlbl_lsm_secattr), flags);
+}
+
+/**
+ * netlbl_secattr_free - Frees a netlbl_lsm_secattr struct
+ * @secattr: the struct to free
+ *
+ * Description:
+ * Frees @secattr including all of the internal buffers.
+ *
+ */
+static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
+{
+ netlbl_secattr_destroy(secattr);
+ kfree(secattr);
+}
+
+#ifdef CONFIG_NETLABEL
+/*
+ * LSM configuration operations
+ */
+int netlbl_cfg_map_del(const char *domain,
+ u16 family,
+ const void *addr,
+ const void *mask,
+ struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_map_add(const char *domain,
+ u16 family,
+ const void *addr,
+ const void *mask,
+ struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_static_add(struct net *net,
+ const char *dev_name,
+ const void *addr,
+ const void *mask,
+ u16 family,
+ u32 secid,
+ struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_static_del(struct net *net,
+ const char *dev_name,
+ const void *addr,
+ const void *mask,
+ u16 family,
+ struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+ struct netlbl_audit *audit_info);
+void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_map_add(u32 doi,
+ const char *domain,
+ const struct in_addr *addr,
+ const struct in_addr *mask,
+ struct netlbl_audit *audit_info);
+int netlbl_cfg_calipso_add(struct calipso_doi *doi_def,
+ struct netlbl_audit *audit_info);
+void netlbl_cfg_calipso_del(u32 doi, struct netlbl_audit *audit_info);
+int netlbl_cfg_calipso_map_add(u32 doi,
+ const char *domain,
+ const struct in6_addr *addr,
+ const struct in6_addr *mask,
+ struct netlbl_audit *audit_info);
+/*
+ * LSM security attribute operations
+ */
+int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap, u32 offset);
+int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap, u32 offset);
+int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap,
+ u32 *offset,
+ unsigned long *bitmap);
+int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap,
+ u32 bit,
+ gfp_t flags);
+int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap,
+ u32 start,
+ u32 end,
+ gfp_t flags);
+int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap,
+ u32 offset,
+ unsigned long bitmap,
+ gfp_t flags);
+
+/* Bitmap functions
+ */
+int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len,
+ u32 offset, u8 state);
+void netlbl_bitmap_setbit(unsigned char *bitmap, u32 bit, u8 state);
+
+/*
+ * LSM protocol operations (NetLabel LSM/kernel API)
+ */
+int netlbl_enabled(void);
+int netlbl_sock_setattr(struct sock *sk,
+ u16 family,
+ const struct netlbl_lsm_secattr *secattr);
+void netlbl_sock_delattr(struct sock *sk);
+int netlbl_sock_getattr(struct sock *sk,
+ struct netlbl_lsm_secattr *secattr);
+int netlbl_conn_setattr(struct sock *sk,
+ struct sockaddr *addr,
+ const struct netlbl_lsm_secattr *secattr);
+int netlbl_req_setattr(struct request_sock *req,
+ const struct netlbl_lsm_secattr *secattr);
+void netlbl_req_delattr(struct request_sock *req);
+int netlbl_skbuff_setattr(struct sk_buff *skb,
+ u16 family,
+ const struct netlbl_lsm_secattr *secattr);
+int netlbl_skbuff_getattr(const struct sk_buff *skb,
+ u16 family,
+ struct netlbl_lsm_secattr *secattr);
+void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway);
+
+/*
+ * LSM label mapping cache operations
+ */
+void netlbl_cache_invalidate(void);
+int netlbl_cache_add(const struct sk_buff *skb, u16 family,
+ const struct netlbl_lsm_secattr *secattr);
+
+/*
+ * Protocol engine operations
+ */
+struct audit_buffer *netlbl_audit_start(int type,
+ struct netlbl_audit *audit_info);
+#else
+static inline int netlbl_cfg_map_del(const char *domain,
+ u16 family,
+ const void *addr,
+ const void *mask,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_cfg_unlbl_map_add(const char *domain,
+ u16 family,
+ void *addr,
+ void *mask,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_cfg_unlbl_static_add(struct net *net,
+ const char *dev_name,
+ const void *addr,
+ const void *mask,
+ u16 family,
+ u32 secid,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_cfg_unlbl_static_del(struct net *net,
+ const char *dev_name,
+ const void *addr,
+ const void *mask,
+ u16 family,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline void netlbl_cfg_cipsov4_del(u32 doi,
+ struct netlbl_audit *audit_info)
+{
+ return;
+}
+static inline int netlbl_cfg_cipsov4_map_add(u32 doi,
+ const char *domain,
+ const struct in_addr *addr,
+ const struct in_addr *mask,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_cfg_calipso_add(struct calipso_doi *doi_def,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline void netlbl_cfg_calipso_del(u32 doi,
+ struct netlbl_audit *audit_info)
+{
+ return;
+}
+static inline int netlbl_cfg_calipso_map_add(u32 doi,
+ const char *domain,
+ const struct in6_addr *addr,
+ const struct in6_addr *mask,
+ struct netlbl_audit *audit_info)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_catmap_walk(struct netlbl_lsm_catmap *catmap,
+ u32 offset)
+{
+ return -ENOENT;
+}
+static inline int netlbl_catmap_walkrng(struct netlbl_lsm_catmap *catmap,
+ u32 offset)
+{
+ return -ENOENT;
+}
+static inline int netlbl_catmap_getlong(struct netlbl_lsm_catmap *catmap,
+ u32 *offset,
+ unsigned long *bitmap)
+{
+ return 0;
+}
+static inline int netlbl_catmap_setbit(struct netlbl_lsm_catmap **catmap,
+ u32 bit,
+ gfp_t flags)
+{
+ return 0;
+}
+static inline int netlbl_catmap_setrng(struct netlbl_lsm_catmap **catmap,
+ u32 start,
+ u32 end,
+ gfp_t flags)
+{
+ return 0;
+}
+static inline int netlbl_catmap_setlong(struct netlbl_lsm_catmap **catmap,
+ u32 offset,
+ unsigned long bitmap,
+ gfp_t flags)
+{
+ return 0;
+}
+static inline int netlbl_enabled(void)
+{
+ return 0;
+}
+static inline int netlbl_sock_setattr(struct sock *sk,
+ u16 family,
+ const struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline void netlbl_sock_delattr(struct sock *sk)
+{
+}
+static inline int netlbl_sock_getattr(struct sock *sk,
+ struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_conn_setattr(struct sock *sk,
+ struct sockaddr *addr,
+ const struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_req_setattr(struct request_sock *req,
+ const struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline void netlbl_req_delattr(struct request_sock *req)
+{
+ return;
+}
+static inline int netlbl_skbuff_setattr(struct sk_buff *skb,
+ u16 family,
+ const struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline int netlbl_skbuff_getattr(const struct sk_buff *skb,
+ u16 family,
+ struct netlbl_lsm_secattr *secattr)
+{
+ return -ENOSYS;
+}
+static inline void netlbl_skbuff_err(struct sk_buff *skb,
+ int error,
+ int gateway)
+{
+ return;
+}
+static inline void netlbl_cache_invalidate(void)
+{
+ return;
+}
+static inline int netlbl_cache_add(const struct sk_buff *skb, u16 family,
+ const struct netlbl_lsm_secattr *secattr)
+{
+ return 0;
+}
+static inline struct audit_buffer *netlbl_audit_start(int type,
+ struct netlbl_audit *audit_info)
+{
+ return NULL;
+}
+#endif /* CONFIG_NETLABEL */
+
+const struct netlbl_calipso_ops *
+netlbl_calipso_ops_register(const struct netlbl_calipso_ops *ops);
+
+#endif /* _NETLABEL_H */