virsh_selinux(8)

1virsh_selinux(8)             SELinux Policy virsh             virsh_selinux(8)
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NAME

6       virsh_selinux - Security Enhanced Linux Policy for the virsh processes
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DESCRIPTION

9       Security-Enhanced Linux secures the virsh processes via flexible manda‐
10       tory access control.
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12       The virsh processes execute with the  virsh_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
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16       For example:
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18       ps -eZ | grep virsh_t
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ENTRYPOINTS

23       The virsh_t SELinux type can be entered via the virsh_exec_t file type.
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25       The default entrypoint paths for the virsh_t domain are the following:
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27       /usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh
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PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
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33       You can see the context of a process using the -Z option to ps
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35       Policy  governs  the  access confined processes have to files.  SELinux
36       virsh policy is very flexible allowing users to setup their virsh  pro‐
37       cesses in as secure a method as possible.
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39       The following process types are defined for virsh:
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41       virsh_t, virsh_ssh_t
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43       Note:  semanage  permissive  -a virsh_t can be used to make the process
44       type virsh_t permissive. SELinux does not  deny  access  to  permissive
45       process  types, but the AVC (SELinux denials) messages are still gener‐
46       ated.
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BOOLEANS

50       SELinux policy is customizable based on least access  required.   virsh
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run virsh with the tightest access possible.
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56       If you want to allow all daemons the ability to  read/write  terminals,
57       you must turn on the daemons_use_tty boolean. Disabled by default.
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59       setsebool -P daemons_use_tty 1
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63       If  you  want  to deny any process from ptracing or debugging any other
64       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
65       default.
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67       setsebool -P deny_ptrace 1
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71       If  you  want  to  allow  any  process  to mmap any file on system with
72       attribute file_type, you must turn on the  domain_can_mmap_files  bool‐
73       ean. Enabled by default.
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75       setsebool -P domain_can_mmap_files 1
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79       If  you want to allow all domains write to kmsg_device, while kernel is
80       executed with systemd.log_target=kmsg parameter, you must turn  on  the
81       domain_can_write_kmsg boolean. Disabled by default.
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83       setsebool -P domain_can_write_kmsg 1
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87       If you want to allow all domains to use other domains file descriptors,
88       you must turn on the domain_fd_use boolean. Enabled by default.
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90       setsebool -P domain_fd_use 1
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94       If you want to allow all domains to have the kernel load  modules,  you
95       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
96       default.
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98       setsebool -P domain_kernel_load_modules 1
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102       If you want to allow all domains to execute in fips_mode, you must turn
103       on the fips_mode boolean. Enabled by default.
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105       setsebool -P fips_mode 1
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109       If you want to enable reading of urandom for all domains, you must turn
110       on the global_ssp boolean. Disabled by default.
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112       setsebool -P global_ssp 1
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116       If you want to allow confined applications to use nscd  shared  memory,
117       you must turn on the nscd_use_shm boolean. Disabled by default.
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119       setsebool -P nscd_use_shm 1
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123       If  you want to support ecryptfs home directories, you must turn on the
124       use_ecryptfs_home_dirs boolean. Disabled by default.
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126       setsebool -P use_ecryptfs_home_dirs 1
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130       If you want to allow confined virtual guests to manage nfs  files,  you
131       must turn on the virt_use_nfs boolean. Disabled by default.
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133       setsebool -P virt_use_nfs 1
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137       If  you want to allow confined virtual guests to manage cifs files, you
138       must turn on the virt_use_samba boolean. Disabled by default.
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140       setsebool -P virt_use_samba 1
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MANAGED FILES

145       The SELinux process type virsh_t can manage files labeled with the fol‐
146       lowing  file  types.   The paths listed are the default paths for these
147       file types.  Note the processes UID still need to have DAC permissions.
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149       cifs_t
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152       container_file_t
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154            /var/lib/kubelet(/.*)?
155            /var/lib/docker/vfs(/.*)?
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157       nfs_t
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160       ssh_home_t
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162            /var/lib/[^/]+/.ssh(/.*)?
163            /root/.ssh(/.*)?
164            /var/lib/one/.ssh(/.*)?
165            /var/lib/pgsql/.ssh(/.*)?
166            /var/lib/openshift/[^/]+/.ssh(/.*)?
167            /var/lib/amanda/.ssh(/.*)?
168            /var/lib/stickshift/[^/]+/.ssh(/.*)?
169            /var/lib/gitolite/.ssh(/.*)?
170            /var/lib/nocpulse/.ssh(/.*)?
171            /var/lib/gitolite3/.ssh(/.*)?
172            /var/lib/openshift/gear/[^/]+/.ssh(/.*)?
173            /root/.shosts
174            /home/[^/]+/.ssh(/.*)?
175            /home/[^/]+/.ansible/cp/.*
176            /home/[^/]+/.shosts
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178       systemd_passwd_var_run_t
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180            /var/run/systemd/ask-password(/.*)?
181            /var/run/systemd/ask-password-block(/.*)?
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183       vhostmd_tmpfs_t
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185
186       virt_etc_rw_t
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188            /etc/xen/[^/]*
189            /etc/xen/.*/.*
190            /etc/libvirt/[^/]*
191            /etc/libvirt/.*/.*
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193       virt_etc_t
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195            /etc/xen/[^/]*
196            /etc/libvirt/[^/]*
197            /etc/xen
198            /etc/libvirt
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200       virt_image_type
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202            all virtual image files
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204       virt_lock_t
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207       virt_lxc_var_run_t
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209            /var/run/libvirt/lxc(/.*)?
210            /var/run/libvirt-sandbox(/.*)?
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212       xenfs_t
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FILE CONTEXTS

217       SELinux requires files to have an extended attribute to define the file
218       type.
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220       You can see the context of a file using the -Z option to ls
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222       Policy  governs  the  access  confined  processes  have to these files.
223       SELinux virsh policy is very flexible allowing  users  to  setup  their
224       virsh processes in as secure a method as possible.
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226       The following file types are defined for virsh:
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230       virsh_exec_t
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232       -  Set  files  with the virsh_exec_t type, if you want to transition an
233       executable to the virsh_t domain.
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236       Paths:
237            /usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh
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239
240       Note: File context can be temporarily modified with the chcon  command.
241       If  you want to permanently change the file context you need to use the
242       semanage fcontext command.  This will modify the SELinux labeling data‐
243       base.  You will need to use restorecon to apply the labels.
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COMMANDS

247       semanage  fcontext  can also be used to manipulate default file context
248       mappings.
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250       semanage permissive can also be used to manipulate  whether  or  not  a
251       process type is permissive.
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253       semanage  module can also be used to enable/disable/install/remove pol‐
254       icy modules.
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256       semanage boolean can also be used to manipulate the booleans
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259       system-config-selinux is a GUI tool available to customize SELinux pol‐
260       icy settings.
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AUTHOR

264       This manual page was auto-generated using sepolicy manpage .
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