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<!-- Creator : groff version 1.22.3 --> <!-- CreationDate: Thu Feb 18 12:20:35 2016 --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta name="generator" content="groff -Thtml, see www.gnu.org"> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <meta name="Content-Style" content="text/css"> <style type="text/css"> p { margin-top: 0; margin-bottom: 0; vertical-align: top } pre { margin-top: 0; margin-bottom: 0; vertical-align: top } table { margin-top: 0; margin-bottom: 0; vertical-align: top } h1 { text-align: center } </style> <title>virsh_selinux</title> </head> <body> <h1 align="center">virsh_selinux</h1> <a href="#NAME">NAME</a><br> <a href="#DESCRIPTION">DESCRIPTION</a><br> <a href="#ENTRYPOINTS">ENTRYPOINTS</a><br> <a href="#PROCESS TYPES">PROCESS TYPES</a><br> <a href="#BOOLEANS">BOOLEANS</a><br> <a href="#MANAGED FILES">MANAGED FILES</a><br> <a href="#FILE CONTEXTS">FILE CONTEXTS</a><br> <a href="#COMMANDS">COMMANDS</a><br> <a href="#AUTHOR">AUTHOR</a><br> <a href="#SEE ALSO">SEE ALSO</a><br> <hr> <h2>NAME <a name="NAME"></a> </h2> <p style="margin-left:11%; margin-top: 1em">virsh_selinux − Security Enhanced Linux Policy for the virsh processes</p> <h2>DESCRIPTION <a name="DESCRIPTION"></a> </h2> <p style="margin-left:11%; margin-top: 1em">Security-Enhanced Linux secures the virsh processes via flexible mandatory access control.</p> <p style="margin-left:11%; margin-top: 1em">The virsh processes execute with the virsh_t SELinux type. You can check if you have these processes running by executing the <b>ps</b> command with the <b>−Z</b> qualifier.</p> <p style="margin-left:11%; margin-top: 1em">For example:</p> <p style="margin-left:11%; margin-top: 1em"><b>ps -eZ | grep virsh_t</b></p> <h2>ENTRYPOINTS <a name="ENTRYPOINTS"></a> </h2> <p style="margin-left:11%; margin-top: 1em">The virsh_t SELinux type can be entered via the <b>virsh_exec_t</b> file type.</p> <p style="margin-left:11%; margin-top: 1em">The default entrypoint paths for the virsh_t domain are the following:</p> <p style="margin-left:11%; margin-top: 1em">/usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh</p> <h2>PROCESS TYPES <a name="PROCESS TYPES"></a> </h2> <p style="margin-left:11%; margin-top: 1em">SELinux defines process types (domains) for each process running on the system</p> <p style="margin-left:11%; margin-top: 1em">You can see the context of a process using the <b>−Z</b> option to <b>ps</b></p> <p style="margin-left:11%; margin-top: 1em">Policy governs the access confined processes have to files. SELinux virsh policy is very flexible allowing users to setup their virsh processes in as secure a method as possible.</p> <p style="margin-left:11%; margin-top: 1em">The following process types are defined for virsh:</p> <p style="margin-left:11%; margin-top: 1em"><b>virsh_ssh_t, virsh_t</b></p> <p style="margin-left:11%; margin-top: 1em">Note: <b>semanage permissive -a virsh_t</b> 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.</p> <h2>BOOLEANS <a name="BOOLEANS"></a> </h2> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P daemons_use_tty 1</b></p> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P deny_ptrace 1</b></p> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P domain_fd_use 1</b></p> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P domain_kernel_load_modules 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P fips_mode 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P global_ssp 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P nscd_use_shm 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to support ecryptfs home directories, you must turn on the use_ecryptfs_home_dirs boolean. Disabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P use_ecryptfs_home_dirs 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to allow confined virtual guests to manage nfs files, you must turn on the virt_use_nfs boolean. Disabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P virt_use_nfs 1</b></p> <p style="margin-left:11%; margin-top: 1em">If you want to allow confined virtual guests to manage cifs files, you must turn on the virt_use_samba boolean. Disabled by default.</p> <p style="margin-left:11%; margin-top: 1em"><b>setsebool -P virt_use_samba 1</b></p> <h2>MANAGED FILES <a name="MANAGED FILES"></a> </h2> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><b>cifs_t</b></p> <p style="margin-left:11%; margin-top: 1em"><b>nfs_t</b></p> <p style="margin-left:11%; margin-top: 1em"><b>ssh_home_t</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/[^/]+/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/root/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/one/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/pgsql/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/openshift/[^/]+/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/amanda/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/stickshift/[^/]+/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/gitolite/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/nocpulse/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/gitolite3/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/var/lib/openshift/gear/[^/]+/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/root/.shosts</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/home/[^/]*/.ssh(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/home/[^/]*/.ansible/cp/.*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="7%"></td> <td width="85%"> <p>/home/[^/]*/.shosts</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>svirt_sandbox_file_t</b></p> <p style="margin-left:11%; margin-top: 1em"><b>systemd_passwd_var_run_t</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/var/run/systemd/ask-password(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/var/run/systemd/ask-password-block(/.*)?</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>vhostmd_tmpfs_t</b></p> <p style="margin-left:11%; margin-top: 1em"><b>virt_etc_rw_t</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/xen/.*/.*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/xen/[^/]*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/libvirt/.*/.*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/libvirt/[^/]*</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>virt_etc_t</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/xen/[^/]*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/libvirt/[^/]*</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/xen</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/etc/libvirt</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>virt_image_type</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>all virtual image files</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>virt_lock_t</b></p> <p style="margin-left:11%; margin-top: 1em"><b>virt_lxc_var_run_t</b></p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/var/run/libvirt/lxc(/.*)?</p></td></tr> <tr valign="top" align="left"> <td width="8%"></td> <td width="92%"> <p>/var/run/libvirt-sandbox(/.*)?</p></td></tr> </table> <p style="margin-left:11%; margin-top: 1em"><b>xenfs_t</b></p> <h2>FILE CONTEXTS <a name="FILE CONTEXTS"></a> </h2> <p style="margin-left:11%; margin-top: 1em">SELinux requires files to have an extended attribute to define the file type.</p> <p style="margin-left:11%; margin-top: 1em">You can see the context of a file using the <b>−Z</b> option to <b>ls</b></p> <p style="margin-left:11%; margin-top: 1em">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.</p> <p style="margin-left:11%; margin-top: 1em"><i>The following file types are defined for virsh:</i></p> <p style="margin-left:11%; margin-top: 1em"><b>virsh_exec_t</b></p> <p style="margin-left:11%; margin-top: 1em">- Set files with the virsh_exec_t type, if you want to transition an executable to the virsh_t domain. <br> Paths:</p> <p style="margin-left:18%;">/usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh</p> <p style="margin-left:11%; margin-top: 1em">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 <b>semanage fcontext</b> command. This will modify the SELinux labeling database. You will need to use <b>restorecon</b> to apply the labels.</p> <h2>COMMANDS <a name="COMMANDS"></a> </h2> <p style="margin-left:11%; margin-top: 1em"><b>semanage fcontext</b> can also be used to manipulate default file context mappings.</p> <p style="margin-left:11%; margin-top: 1em"><b>semanage permissive</b> can also be used to manipulate whether or not a process type is permissive.</p> <p style="margin-left:11%; margin-top: 1em"><b>semanage module</b> can also be used to enable/disable/install/remove policy modules.</p> <p style="margin-left:11%; margin-top: 1em"><b>semanage boolean</b> can also be used to manipulate the booleans</p> <p style="margin-left:11%; margin-top: 1em"><b>system-config-selinux</b> is a GUI tool available to customize SELinux policy settings.</p> <h2>AUTHOR <a name="AUTHOR"></a> </h2> <p style="margin-left:11%; margin-top: 1em">This manual page was auto-generated using <b>sepolicy manpage .</b></p> <h2>SEE ALSO <a name="SEE ALSO"></a> </h2> <p style="margin-left:11%; margin-top: 1em">selinux(8), virsh(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8), virsh_ssh_selinux(8), virsh_ssh_selinux(8)</p> <hr> </body> </html>