virtd_selinux

Section: virtd SELinux Policy documentation (8)
Updated: virtd
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NAME

virtd_selinux - Security Enhanced Linux Policy for the virtd processes

DESCRIPTION

BOOLEANS

SELinux policy is customizable based on least access required. virtd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run virtd with the tightest access possible.

If you want to allow virt to manage nfs file, you must turn on the virt_use_nfs boolean.

setsebool -P virt_use_nfs 1

If you want to allow virt to use serial/parallell communication port, you must turn on the virt_use_comm boolean.

setsebool -P virt_use_comm 1

If you want to allow virtual machine to interact with the xserve, you must turn on the virt_use_xserver boolean.

setsebool -P virt_use_xserver 1

If you want to allow virt to manage device configuration, (pci, you must turn on the virt_use_sysfs boolean.

setsebool -P virt_use_sysfs 1

If you want to allow confined virtual guests to interact with the sanloc, you must turn on the virt_use_sanlock boolean.

setsebool -P virt_use_sanlock 1

If you want to allow virt to use usb device, you must turn on the virt_use_usb boolean.

setsebool -P virt_use_usb 1

If you want to allow virt to read fuse file, you must turn on the virt_use_fusefs boolean.

setsebool -P virt_use_fusefs 1

If you want to allow virt to manage cifs file, you must turn on the virt_use_samba boolean.

setsebool -P virt_use_samba 1

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

The following file types are defined for virtd:

virt_cache_t

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

Paths:: /var/cache/oz(/.*)?, /var/cache/libvirt

virt_content_t

- Set files with the virt_content_t type, if you want to treat the files as virt content.

Paths:: /var/lib/oz/isos(/.*)?, /var/lib/libvirt/boot(/.*)?, /var/lib/libvirt/isos(/.*)?

virt_etc_rw_t

- Set files with the virt_etc_rw_t type, if you want to treat the files as virt etc read/write content.

Paths:: /etc/libvirt/.*/.*, /etc/xen/.*/.*, /etc/xen/[^/]*, /etc/libvirt/[^/]*

virt_etc_t

- Set files with the virt_etc_t type, if you want to store virt files in the /etc directories.

Paths:: /etc/libvirt/[^/]*, /etc/libvirt, /etc/xen/[^/]*, /etc/xen

virt_home_t

- Set files with the virt_home_t type, if you want to store virt files in the users home directory.

virt_image_t

- Set files with the virt_image_t type, if you want to treat the files as virt image data.

Paths:: /var/lib/imagefactory/images(/.*)?, /var/lib/libvirt/images(/.*)?

virt_log_t

- Set files with the virt_log_t type, if you want to treat the data as virt log data, usually stored under the /var/log directory.

virt_tmp_t

- Set files with the virt_tmp_t type, if you want to store virt temporary files in the /tmp directories.

virt_var_lib_t

- Set files with the virt_var_lib_t type, if you want to store the virt files under the /var/lib directory.

Paths:: /var/lib/oz(/.*)?, /var/lib/libvirt(/.*)?

virt_var_run_t

- Set files with the virt_var_run_t type, if you want to store the virt files under the /run directory.

Paths:: /var/vdsm(/.*)?, /var/run/libvirt(/.*)?

virtd_exec_t

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

Paths:: /usr/bin/imgfac.py, /usr/bin/imagefactory, /usr/sbin/condor_vm-gahp, /usr/sbin/libvirtd, /usr/share/vdsm/vdsm

virtd_initrc_exec_t

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

virtd_keytab_t

- Set files with the virtd_keytab_t type, if you want to treat the files as kerberos keytab files.

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 virtd policy is very flexible allowing users to setup their virtd processes in as secure a method as possible.

The following port types are defined for virtd:

virt_migration_port_t

Default Defined Ports: tcp 8021

virt_port_t

Default Defined Ports: tcp 8021

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

The following process types are defined for virtd:

virtd_t

Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

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 policy modules.

semanage port can also be used to manipulate the port definitions

semanage boolean can also be used to manipulate the booleans

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

AUTHOR

This manual page was autogenerated by genman.py.

This document was created by man2html, using the manual pages.
Time: 05:34:31 GMT, December 24, 2015