afs_selinux(8) SELinux Policy documentation for afs afs_selinux(8)

NAME afs_selinux - Security Enhanced Linux Policy for the afs processes

DESCRIPTION Security-Enhanced Linux secures the afs processes via flexible manda- tory access control.

The afs processes execute with the afs_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep afs_t

ENTRYPOINTS The afs_t SELinux type can be entered via the "afs_exec_t" file type. The default entrypoint paths for the afs_t domain are the following:"

/usr/sbin/afsd, /usr/vice/etc/afsd

PROCESS TYPES SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to ps

Policy governs the access confined processes have to files. SELinux afs policy is very flexible allowing users to setup their afs processes in as secure a method as possible.

The following process types are defined for afs:

afs_kaserver_t, afs_t, afs_fsserver_t, afs_bosserver_t, afs_vlserver_t, afs_ptserver_t

Note: semanage permissive -a afs_t

can be used to make the process type afs_t permissive. Permissive pro- cess types are not denied access by SELinux. AVC messages will still be generated.

FILE CONTEXTS SELinux requires files to have an extended attribute to define the file type.

You can see the context of a file using the -Z option to ls

Policy governs the access confined processes have to these files. SELinux afs policy is very flexible allowing users to setup their afs processes in as secure a method as possible.

The following file types are defined for afs:

afs_bosserver_exec_t

- Set files with the afs_bosserver_exec_t type, if you want to transition an executable to the afs_bosserver_t domain.

afs_cache_t

- Set files with the afs_cache_t type, if you want to store the files under the /var/cache directory.

afs_config_t

- Set files with the afs_config_t type, if you want to treat the files as afs configuration data, usually stored under the /etc directory.

afs_dbdir_t

- Set files with the afs_dbdir_t type, if you want to treat the files as afs dbdir data.

afs_exec_t

- Set files with the afs_exec_t type, if you want to transition an exe- cutable to the afs_t domain.

afs_files_t

- Set files with the afs_files_t type, if you want to treat the files as afs content.

afs_fsserver_exec_t

- Set files with the afs_fsserver_exec_t type, if you want to transi- tion an executable to the afs_fsserver_t domain.

afs_initrc_exec_t

- Set files with the afs_initrc_exec_t type, if you want to transition an executable to the afs_initrc_t domain.

afs_ka_db_t

- Set files with the afs_ka_db_t type, if you want to treat the files as afs ka database content.

afs_kaserver_exec_t

- Set files with the afs_kaserver_exec_t type, if you want to transi- tion an executable to the afs_kaserver_t domain.

afs_logfile_t

- Set files with the afs_logfile_t type, if you want to treat the files as afs logfile data.

afs_pt_db_t

- Set files with the afs_pt_db_t type, if you want to treat the files as afs pt database content.

afs_ptserver_exec_t

- Set files with the afs_ptserver_exec_t type, if you want to transi- tion an executable to the afs_ptserver_t domain.

afs_vl_db_t

- Set files with the afs_vl_db_t type, if you want to treat the files as afs vl database content.

afs_vlserver_exec_t

- Set files with the afs_vlserver_exec_t type, if you want to transi- tion an executable to the afs_vlserver_t domain.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.

PORT TYPES SELinux defines port types to represent TCP and UDP ports.

You can see the types associated with a port by using the following command:

semanage port -l

Policy governs the access confined processes have to these ports. SELinux afs policy is very flexible allowing users to setup their afs processes in as secure a method as possible.

The following port types are defined for afs:

afs_bos_port_t

Default Defined Ports: udp 7007

afs_client_port_t

Default Defined Ports: udp 7001

afs_fs_port_t

Default Defined Ports: tcp 2040 udp 7000,7005

afs_ka_port_t

Default Defined Ports: udp 7004

afs_pt_port_t

Default Defined Ports: udp 7002

afs_vl_port_t

Default Defined Ports: udp 7003

MANAGED FILES The SELinux process type afs_t can manage files labeled with the fol- lowing file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.

afs_cache_t

/var/cache/afs(/.*)? /usr/vice/cache(/.*)?

etc_runtime_t

/[^/]+ /etc/mtab.* /etc/blkid(/.*)? /etc/nologin.* /etc/smartd.conf.* /etc/.fstab.hal..+ /etc/sysconfig/ip6?tables.save /halt /etc/motd /fastboot /poweroff /etc/issue /etc/cmtab /forcefsck /.autofsck /.suspended /fsckoptions /etc/HOSTNAME /.autorelabel /etc/securetty /etc/nohotplug /etc/issue.net /etc/killpower /etc/ioctl.save /etc/reader.conf /etc/fstab.REVOKE /etc/mtab.fuselock /etc/network/ifstate /etc/sysconfig/hwconf /etc/ptal/ptal-printd-like /etc/xorg.conf.d/00-system-setup-keyboard.conf

initrc_tmp_t

mnt_t

/mnt(/[^/]*) /mnt(/[^/]*)? /rhev(/[^/]*)? /media(/[^/]*) /media(/[^/]*)? /etc/rhgb(/.*)? /media/.hal-.* /net /afs /misc /rhev

root_t

/ /initrd

tmp_t

/tmp /usr/tmp /var/tmp /var/tmp/vi.recover

unlabeled_t

COMMANDS semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove pol- icy modules.

semanage port can also be used to manipulate the port definitions

system-config-selinux is a GUI tool available to customize SELinux pol- icy settings.

AUTHOR This manual page was auto-generated using sepolicy manpage by mgrepl.

SEE ALSO selinux(8), afs(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , afs_bosserver_selinux(8), afs_fsserver_selinux(8), afs_kaserver_selinux(8), afs_ptserver_selinux(8), afs_vlserver_selinux(8)

afs 13-01-04 afs_selinux(8)