centos man page for virsh_selinux

virsh_selinux(8)					       SELinux Policy virsh						  virsh_selinux(8)

NAME
       virsh_selinux - Security Enhanced Linux Policy for the virsh processes

DESCRIPTION
       Security-Enhanced Linux secures the virsh processes via flexible mandatory access control.

       The  virsh  processes  execute with the virsh_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 virsh_t

ENTRYPOINTS
       The virsh_t SELinux type can be entered via the virsh_exec_t file type.

       The default entrypoint paths for the virsh_t domain are the following:

       /usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh

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 virsh policy is very flexible allowing users to setup their virsh pro-
       cesses in as secure a method as possible.

       The following process types are defined for virsh:

       virsh_ssh_t, virsh_t

       Note:  semanage	permissive  -a virsh_t can be used to make the process type virsh_t permissive. SELinux does not deny access to permissive
       process types, but the AVC (SELinux denials) messages are still generated.

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

       If you want to allow all daemons the ability to read/write terminals, you must turn on the daemons_use_tty boolean. Disabled by default.

       setsebool -P daemons_use_tty 1

       If  you	want  to  deny	any  process  from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If you want to allow all domains to have the kernel load modules, you must turn on  the	domain_kernel_load_modules  boolean.  Disabled	by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

       If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.

       setsebool -P nscd_use_shm 1

       If you want to support ecryptfs home directories, you must turn on the use_ecryptfs_home_dirs boolean. Disabled by default.

       setsebool -P use_ecryptfs_home_dirs 1

       If you want to allow confined virtual guests to manage nfs files, you must turn on the virt_use_nfs boolean. Disabled by default.

       setsebool -P virt_use_nfs 1

       If you want to allow confined virtual guests to manage cifs files, you must turn on the virt_use_samba boolean. Disabled by default.

       setsebool -P virt_use_samba 1

NSSWITCH DOMAIN
       If  you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the virsh_ssh_t, you must
       turn on the authlogin_nsswitch_use_ldap boolean.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow confined applications to run with kerberos for the virsh_ssh_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

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

       cifs_t

       nfs_t

       ssh_home_t

	    /var/lib/[^/]+/.ssh(/.*)?
	    /root/.ssh(/.*)?
	    /var/lib/one/.ssh(/.*)?
	    /var/lib/pgsql/.ssh(/.*)?
	    /var/lib/openshift/[^/]+/.ssh(/.*)?
	    /var/lib/amanda/.ssh(/.*)?
	    /var/lib/stickshift/[^/]+/.ssh(/.*)?
	    /var/lib/gitolite/.ssh(/.*)?
	    /var/lib/nocpulse/.ssh(/.*)?
	    /var/lib/gitolite3/.ssh(/.*)?
	    /var/lib/openshift/gear/[^/]+/.ssh(/.*)?
	    /root/.shosts
	    /home/[^/]*/.ssh(/.*)?
	    /home/[^/]*/.ansible/cp/.*
	    /home/[^/]*/.shosts

       svirt_sandbox_file_t

       systemd_passwd_var_run_t

	    /var/run/systemd/ask-password(/.*)?
	    /var/run/systemd/ask-password-block(/.*)?

       vhostmd_tmpfs_t

       virt_etc_rw_t

	    /etc/xen/.*/.*
	    /etc/xen/[^/]*
	    /etc/libvirt/.*/.*
	    /etc/libvirt/[^/]*

       virt_etc_t

	    /etc/xen/[^/]*
	    /etc/libvirt/[^/]*
	    /etc/xen
	    /etc/libvirt

       virt_image_type

	    all virtual image files

       virt_lock_t

       virt_lxc_var_run_t

	    /var/run/libvirt/lxc(/.*)?
	    /var/run/libvirt-sandbox(/.*)?

       xenfs_t

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

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the virsh, if you wanted to store files with these types in a diffent paths, you need to execute
       the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.

       semanage fcontext -a -t virsh_exec_t '/srv/virsh/content(/.*)?'
       restorecon -R -v /srv/myvirsh_content

       Note: SELinux often uses regular expressions to specify labels that match multiple files.

       The following file types are defined for virsh:

       virsh_exec_t

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

       Paths:
	    /usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh

       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.

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 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 auto-generated using sepolicy manpage .

SEE ALSO
       selinux(8), virsh(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8), virsh_ssh_selinux(8), virsh_ssh_selinux(8)

virsh								     14-06-10							  virsh_selinux(8)