diff options
| -rw-r--r-- | fs/ubifs/Kconfig | 13 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 12 | ||||
| -rw-r--r-- | fs/ubifs/xattr.c | 6 |
3 files changed, 30 insertions, 1 deletions
diff --git a/fs/ubifs/Kconfig b/fs/ubifs/Kconfig index 7ff7712f284e..15fb49c053df 100644 --- a/fs/ubifs/Kconfig +++ b/fs/ubifs/Kconfig @@ -50,3 +50,16 @@ config UBIFS_ATIME_SUPPORT strictatime is the "heavy", relatime is "lighter", etc. If unsure, say 'N' + +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 096035eb29d0..9a0d575e1dca 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1741,8 +1741,18 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry, /* xattr.c */ extern const struct xattr_handler *ubifs_xattr_handlers[]; ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size); -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 3979d767a0cb..a0b86160a5fa 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -534,6 +534,7 @@ out_free: return err; } +#ifdef CONFIG_UBIFS_FS_SECURITY static int init_xattrs(struct inode *inode, const struct xattr *xattr_array, void *fs_info) { @@ -574,6 +575,7 @@ int ubifs_init_security(struct inode *dentry, struct inode *inode, } return err; } +#endif static int ubifs_xattr_get(const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, @@ -615,15 +617,19 @@ static const struct xattr_handler ubifs_trusted_xattr_handler = { .set = ubifs_xattr_set, }; +#ifdef CONFIG_UBIFS_FS_SECURITY static const struct xattr_handler ubifs_security_xattr_handler = { .prefix = XATTR_SECURITY_PREFIX, .get = ubifs_xattr_get, .set = ubifs_xattr_set, }; +#endif const struct xattr_handler *ubifs_xattr_handlers[] = { &ubifs_user_xattr_handler, &ubifs_trusted_xattr_handler, +#ifdef CONFIG_UBIFS_FS_SECURITY &ubifs_security_xattr_handler, +#endif NULL }; |