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.
11 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.
15 For example:
17 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.
24 The default entrypoint paths for the virsh_t domain are the following:
26 /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
32 You can see the context of a process using the -Z option to ps
34 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.
38 The following process types are defined for virsh:
40 virsh_t, virsh_ssh_t
42 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.
53 If you want to allow all domains to execute in fips_mode, you must turn
57 on the fips_mode boolean. Enabled by default.
58 setsebool -P fips_mode 1
60 If you want to allow confined applications to use nscd shared memory,
64 you must turn on the nscd_use_shm boolean. Enabled by default.
65 setsebool -P nscd_use_shm 1
67 If you want to allow confined virtual guests to manage nfs files, you
71 must turn on the virt_use_nfs boolean. Disabled by default.
72 setsebool -P virt_use_nfs 1
74 If you want to allow confined virtual guests to manage cifs files, you
78 must turn on the virt_use_samba boolean. Disabled by default.
79 setsebool -P virt_use_samba 1
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85 The SELinux process type virsh_t can manage files labeled with the fol‐
86 lowing file types. The paths listed are the default paths for these
87 file types. Note the processes UID still need to have DAC permissions.
88 cifs_t
90 container_file_t
93 /var/lib/rkt/cas(/.*)?
95 nfs_t
97 ssh_home_t
100 /var/lib/[^/]+/.ssh(/.*)?
102 /root/.ssh(/.*)?
103 /var/lib/one/.ssh(/.*)?
104 /var/lib/pgsql/.ssh(/.*)?
105 /var/lib/openshift/[^/]+/.ssh(/.*)?
106 /var/lib/amanda/.ssh(/.*)?
107 /var/lib/stickshift/[^/]+/.ssh(/.*)?
108 /var/lib/gitolite/.ssh(/.*)?
109 /var/lib/nocpulse/.ssh(/.*)?
110 /var/lib/gitolite3/.ssh(/.*)?
111 /var/lib/openshift/gear/[^/]+/.ssh(/.*)?
112 /root/.shosts
113 /home/[^/]+/.ssh(/.*)?
114 /home/[^/]+/.ansible/cp/.*
115 /home/[^/]+/.shosts
116 systemd_passwd_var_run_t
118 /var/run/systemd/ask-password(/.*)?
120 /var/run/systemd/ask-password-block(/.*)?
121 vhostmd_tmpfs_t
123 virt_etc_rw_t
126 /etc/xen/.*/.*
128 /etc/xen/[^/]*
129 /etc/libvirt/.*/.*
130 /etc/libvirt/[^/]*
131 virt_etc_t
133 /etc/xen/[^/]*
135 /etc/libvirt/[^/]*
136 /etc/xen
137 /etc/libvirt
138 virt_image_type
140 all virtual image files
142 virt_lock_t
144 virt_lxc_var_run_t
147 /var/run/libvirt/lxc(/.*)?
149 /var/run/libvirt-sandbox(/.*)?
150 xenfs_t
152
156 SELinux requires files to have an extended attribute to define the file
157 type.
158 You can see the context of a file using the -Z option to ls
160 Policy governs the access confined processes have to these files.
162 SELinux virsh policy is very flexible allowing users to setup their
163 virsh processes in as secure a method as possible.
164 STANDARD FILE CONTEXT
166 SELinux defines the file context types for the virsh, if you wanted to
168 store files with these types in a different paths, you need to execute
169 the semanage command to specify alternate labeling and then use re‐
170 storecon to put the labels on disk.
171 semanage fcontext -a -t virsh_exec_t '/srv/virsh/content(/.*)?'
173 restorecon -R -v /srv/myvirsh_content
174 Note: SELinux often uses regular expressions to specify labels that
176 match multiple files.
177 The following file types are defined for virsh:
179 virsh_exec_t
183 - Set files with the virsh_exec_t type, if you want to transition an
185 executable to the virsh_t domain.
186 Paths:
189 /usr/sbin/xl, /usr/sbin/xm, /usr/bin/virsh
190 Note: File context can be temporarily modified with the chcon command.
193 If you want to permanently change the file context you need to use the
194 semanage fcontext command. This will modify the SELinux labeling data‐
195 base. You will need to use restorecon to apply the labels.
196
199 semanage fcontext can also be used to manipulate default file context
200 mappings.
201 semanage permissive can also be used to manipulate whether or not a
203 process type is permissive.
204 semanage module can also be used to enable/disable/install/remove pol‐
206 icy modules.
207 semanage boolean can also be used to manipulate the booleans
209 system-config-selinux is a GUI tool available to customize SELinux pol‐
212 icy settings.
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216 This manual page was auto-generated using sepolicy manpage .
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220 selinux(8), virsh(8), semanage(8), restorecon(8), chcon(1), sepol‐
221 icy(8), setsebool(8), virsh_ssh_selinux(8), virsh_ssh_selinux(8)
222virsh 23-10-20 virsh_selinux(8)