policy_module(filesystem,1.0)

########################################

#

# Declarations

#

attribute filesystem_type;

attribute noxattrfs;

##############################

#

# fs_t is the default type for persistent

# filesystems with extended attributes

#

type fs_t, filesystem_type;

sid fs gen_context(system_u:object_r:fs_t,s0)

# Use xattrs for the following filesystem types.

# Requires that a security xattr handler exist for the filesystem.

fs_use_xattr ext2 gen_context(system_u:object_r:fs_t,s0);

fs_use_xattr ext3 gen_context(system_u:object_r:fs_t,s0);

fs_use_xattr jfs gen_context(system_u:object_r:fs_t,s0);

fs_use_xattr reiserfs gen_context(system_u:object_r:fs_t,s0);

fs_use_xattr xfs gen_context(system_u:object_r:fs_t,s0);

# Use the allocating task SID to label inodes in the following filesystem

# types, and label the filesystem itself with the specified context.

# This is appropriate for pseudo filesystems that represent objects

# like pipes and sockets, so that these objects are labeled with the same

# type as the creating task.  

fs_use_task pipefs gen_context(system_u:object_r:fs_t,s0);

fs_use_task sockfs gen_context(system_u:object_r:fs_t,s0);

##############################

#

# Non-persistent/pseudo filesystems

#

type bdev_t, filesystem_type;

genfscon bdev / gen_context(system_u:object_r:bdev_t,s0)

type binfmt_misc_fs_t, filesystem_type;

files_mountpoint(binfmt_misc_fs_t)

genfscon binfmt_misc / gen_context(system_u:object_r:binfmt_misc_fs_t,s0)

type capifs_t, filesystem_type;

allow capifs_t self:filesystem associate;

genfscon capifs / gen_context(system_u:object_r:capifs_t,s0)

type configfs_t, filesystem_type;

allow configfs_t self:filesystem associate;

genfscon configfs / gen_context(system_u:object_r:configfs_t,s0)

type eventpollfs_t, filesystem_type;

genfscon eventpollfs / gen_context(system_u:object_r:eventpollfs_t,s0)

type futexfs_t, filesystem_type;

genfscon futexfs / gen_context(system_u:object_r:futexfs_t,s0)

type hugetlbfs_t, filesystem_type;

files_mountpoint(hugetlbfs_t)

allow hugetlbfs_t self:filesystem associate;

genfscon hugetlbfs / gen_context(system_u:object_r:hugetlbfs_t,s0)

type inotifyfs_t, filesystem_type;

allow inotifyfs_t self:filesystem associate;

genfscon inotifyfs / gen_context(system_u:object_r:inotifyfs_t,s0)

type nfsd_fs_t, filesystem_type;

genfscon nfsd / gen_context(system_u:object_r:nfsd_fs_t,s0)

type ramfs_t, filesystem_type;

allow ramfs_t self:filesystem associate;

genfscon ramfs / gen_context(system_u:object_r:ramfs_t,s0)

type romfs_t, filesystem_type;

allow romfs_t self:filesystem associate;

genfscon romfs / gen_context(system_u:object_r:romfs_t,s0)

genfscon cramfs / gen_context(system_u:object_r:romfs_t,s0)

type rpc_pipefs_t, filesystem_type;

genfscon rpc_pipefs / gen_context(system_u:object_r:rpc_pipefs_t,s0)

#

# tmpfs_t is the type for tmpfs filesystems

#

type tmpfs_t, filesystem_type;

files_type(tmpfs_t)

files_mountpoint(tmpfs_t)

# Use a transition SID based on the allocating task SID and the

# filesystem SID to label inodes in the following filesystem types,

# and label the filesystem itself with the specified context.

# This is appropriate for pseudo filesystems like devpts and tmpfs

# where we want to label objects with a derived type.

fs_use_trans mqueue gen_context(system_u:object_r:tmpfs_t,s0);

fs_use_trans shm gen_context(system_u:object_r:tmpfs_t,s0);

fs_use_trans tmpfs gen_context(system_u:object_r:tmpfs_t,s0);

allow tmpfs_t self:filesystem associate;

allow tmpfs_t noxattrfs:filesystem associate;

##############################

#

# Filesystems without extended attribute support

#

type autofs_t, filesystem_type, noxattrfs;

allow autofs_t self:filesystem associate;

genfscon autofs / gen_context(system_u:object_r:autofs_t,s0)

genfscon automount / gen_context(system_u:object_r:autofs_t,s0)

#

# cifs_t is the type for filesystems and their

# files shared from Windows servers

#

type cifs_t alias sambafs_t, filesystem_type, noxattrfs;

allow cifs_t self:filesystem associate;

genfscon cifs / gen_context(system_u:object_r:cifs_t,s0)

genfscon smbfs / gen_context(system_u:object_r:cifs_t,s0)

#

# dosfs_t is the type for fat and vfat

# filesystems and their files.

#

type dosfs_t, filesystem_type, noxattrfs;

allow dosfs_t self:filesystem associate;

genfscon fat / gen_context(system_u:object_r:dosfs_t,s0)

genfscon msdos / gen_context(system_u:object_r:dosfs_t,s0)

genfscon ntfs / gen_context(system_u:object_r:dosfs_t,s0)

genfscon vfat / gen_context(system_u:object_r:dosfs_t,s0)

#

# iso9660_t is the type for CD filesystems

# and their files.

#

type iso9660_t, filesystem_type, noxattrfs;

allow iso9660_t self:filesystem associate;

genfscon iso9660 / gen_context(system_u:object_r:iso9660_t,s0)

genfscon udf / gen_context(system_u:object_r:iso9660_t,s0)

#

# removable_t is the default type of all removable media

#

type removable_t, filesystem_type, noxattrfs;

allow removable_t noxattrfs:filesystem associate;

#

# nfs_t is the default type for NFS file systems

# and their files.

#

type nfs_t, filesystem_type, noxattrfs;

files_mountpoint(nfs_t)

allow nfs_t self:filesystem associate;

genfscon nfs / gen_context(system_u:object_r:nfs_t,s0)

genfscon nfs4 / gen_context(system_u:object_r:nfs_t,s0)

genfscon afs / gen_context(system_u:object_r:nfs_t,s0)