1virsh_selinux(8) SELinux Policy virsh virsh_selinux(8)
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6 virsh_selinux - Security Enhanced Linux Policy for the virsh processes
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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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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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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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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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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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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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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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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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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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264 This manual page was auto-generated using sepolicy manpage .
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268 selinux(8), virsh(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
269 , setsebool(8), virsh_ssh_selinux(8), virsh_ssh_selinux(8)
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273virsh 19-04-25 virsh_selinux(8)