mirror of
https://github.com/torvalds/linux.git
synced 2024-11-05 11:32:04 +00:00
a6227e26d9
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
590 lines
17 KiB
C
590 lines
17 KiB
C
/*
|
|
* 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
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#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/atomic.h>
|
|
|
|
struct cipso_v4_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"
|
|
|
|
/*
|
|
* 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;
|
|
u32 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 {
|
|
atomic_t refcount;
|
|
void (*free) (const void *data);
|
|
void *data;
|
|
};
|
|
|
|
/**
|
|
* struct netlbl_lsm_secattr_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_secattr_catmap {
|
|
u32 startbit;
|
|
NETLBL_CATMAP_MAPTYPE bitmap[NETLBL_CATMAP_MAPCNT];
|
|
struct netlbl_lsm_secattr_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_secattr_catmap *cat;
|
|
u32 lvl;
|
|
} mls;
|
|
u32 secid;
|
|
} attr;
|
|
};
|
|
|
|
/*
|
|
* 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)
|
|
atomic_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 (!atomic_dec_and_test(&cache->refcount))
|
|
return;
|
|
|
|
if (cache->free)
|
|
cache->free(cache->data);
|
|
kfree(cache);
|
|
}
|
|
|
|
/**
|
|
* netlbl_secattr_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_secattr_catmap *netlbl_secattr_catmap_alloc(
|
|
gfp_t flags)
|
|
{
|
|
return kzalloc(sizeof(struct netlbl_lsm_secattr_catmap), flags);
|
|
}
|
|
|
|
/**
|
|
* netlbl_secattr_catmap_free - Free a LSM secattr catmap
|
|
* @catmap: the category bitmap
|
|
*
|
|
* Description:
|
|
* Free a LSM secattr catmap.
|
|
*
|
|
*/
|
|
static inline void netlbl_secattr_catmap_free(
|
|
struct netlbl_lsm_secattr_catmap *catmap)
|
|
{
|
|
struct netlbl_lsm_secattr_catmap *iter;
|
|
|
|
do {
|
|
iter = catmap;
|
|
catmap = catmap->next;
|
|
kfree(iter);
|
|
} while (catmap);
|
|
}
|
|
|
|
/**
|
|
* 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_secattr_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);
|
|
/*
|
|
* LSM security attribute operations
|
|
*/
|
|
int netlbl_secattr_catmap_walk(struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 offset);
|
|
int netlbl_secattr_catmap_walk_rng(struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 offset);
|
|
int netlbl_secattr_catmap_setbit(struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 bit,
|
|
gfp_t flags);
|
|
int netlbl_secattr_catmap_setrng(struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 start,
|
|
u32 end,
|
|
gfp_t flags);
|
|
|
|
/*
|
|
* 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, int error, int gateway);
|
|
|
|
/*
|
|
* LSM label mapping cache operations
|
|
*/
|
|
void netlbl_cache_invalidate(void);
|
|
int netlbl_cache_add(const struct sk_buff *skb,
|
|
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_secattr_catmap_walk(
|
|
struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 offset)
|
|
{
|
|
return -ENOENT;
|
|
}
|
|
static inline int netlbl_secattr_catmap_walk_rng(
|
|
struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 offset)
|
|
{
|
|
return -ENOENT;
|
|
}
|
|
static inline int netlbl_secattr_catmap_setbit(
|
|
struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 bit,
|
|
gfp_t flags)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int netlbl_secattr_catmap_setrng(
|
|
struct netlbl_lsm_secattr_catmap *catmap,
|
|
u32 start,
|
|
u32 end,
|
|
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,
|
|
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 */
|
|
|
|
#endif /* _NETLABEL_H */
|