Security-Enhanced Linux secures the xend processes via flexible mandatory access control.
If you want to allow xen to manage nfs files, you must turn on the xen_use_nfs boolean.
setsebool -P xen_use_nfs 1
If you want to allow xend to run qemu-dm. Not required if using paravirt and no vfb, you must turn on the xend_run_qemu boolean.
setsebool -P xend_run_qemu 1
If you want to allow xend to run blktapctrl/tapdisk. Not required if using dedicated logical volumes for disk images, you must turn on the xend_run_blktap boolean.
setsebool -P xend_run_blktap 1
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux xend policy is very flexible allowing users to setup their xend processes in as secure a method as possible.
The following file types are defined for xend:
xend_exec_t
- Set files with the xend_exec_t type, if you want to transition an executable to the xend_t domain.
xend_tmp_t
- Set files with the xend_tmp_t type, if you want to store xend temporary files in the /tmp directories.
xend_var_lib_t
- Set files with the xend_var_lib_t type, if you want to store the xend files under the /var/lib directory.
xend_var_log_t
- Set files with the xend_var_log_t type, if you want to treat the data as xend var log data, usually stored under the /var/log directory.
xend_var_run_t
- Set files with the xend_var_run_t type, if you want to store the xend files under the /run directory.
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.
You can see the types associated with a port by using the following command:
semanage port -l
Policy governs the access confined processes have to these ports. SELinux xend policy is very flexible allowing users to setup their xend processes in as secure a method as possible.
The following port types are defined for xend:
Default Defined Ports: tcp 8002
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux xend policy is very flexible allowing users to setup their xend processes in as secure a method as possible.
The following process types are defined for xend:
xend_t, xenstored_t, xenconsoled_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
The SELinux user type xend_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 perm