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-rw-r--r--fs/ubifs/Kconfig13
-rw-r--r--fs/ubifs/ubifs.h12
-rw-r--r--fs/ubifs/xattr.c2
3 files changed, 26 insertions, 1 deletions
diff --git a/fs/ubifs/Kconfig b/fs/ubifs/Kconfig
index ba66d508006a..a553e03737d2 100644
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -35,3 +35,16 @@ config UBIFS_FS_ZLIB
default y
help
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
+
+config UBIFS_FS_SECURITY
+ bool "UBIFS Security Labels"
+ depends on UBIFS_FS
+ default y
+ help
+ Security labels provide an access control facility to support Linux
+ Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
+ Linux. This option enables an extended attribute handler for file
+ security labels in the ubifs filesystem, so that it requires enabling
+ the extended attribute support in advance.
+
+ If you are not using a security module, say N.
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index de759022f3d6..e3a87c05662c 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1760,8 +1760,18 @@ ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
size_t size);
ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
int ubifs_removexattr(struct dentry *dentry, const char *name);
-int ubifs_init_security(struct inode *dentry, struct inode *inode,
+
+#ifdef CONFIG_UBIFS_FS_SECURITY
+extern int ubifs_init_security(struct inode *dentry, struct inode *inode,
const struct qstr *qstr);
+#else
+static inline int ubifs_init_security(struct inode *dentry,
+ struct inode *inode, const struct qstr *qstr)
+{
+ return 0;
+}
+#endif
+
/* super.c */
struct inode *ubifs_iget(struct super_block *sb, unsigned long inum);
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 7270162b72e4..72efb3e61c7d 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -624,6 +624,7 @@ const struct xattr_handler *ubifs_xattr_handlers[] = {
NULL,
};
+#ifdef CONFIG_UBIFS_FS_SECURITY
static int init_xattrs(struct inode *inode, const struct xattr *xattr_array,
void *fs_info)
{
@@ -663,3 +664,4 @@ int ubifs_init_security(struct inode *dentry, struct inode *inode,
}
return err;
}
+#endif