blktap_selinux(8) blktap SELinux Policy documentation blktap_selinux(8)NAMEblktap_selinux - Security Enhanced Linux Policy for the blktap pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the blktap processes via flexible
mandatory access control.
BOOLEANS
SELinux policy is customizable based on least access required. blktap
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run blktap with the tightest access possible.
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
NSSWITCH DOMAINFILE CONTEXTS
SELinux requires files to have an extended attribute to define the file
type.
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files.
SELinux blktap policy is very flexible allowing users to setup their
blktap processes in as secure a method as possible.
The following file types are defined for blktap:
blktap_exec_t
- Set files with the blktap_exec_t type, if you want to transition an
executable to the blktap_t domain.
Paths:
/usr/sbin/blktapctrl, /usr/sbin/tapdisk
blktap_var_run_t
- Set files with the blktap_var_run_t type, if you want to store the
blktap files under the /run directory.
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
PROCESS TYPES
SELinux defines process types (domains) for each process running on the
system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
blktap policy is very flexible allowing users to setup their blktap
processes in as secure a method as possible.
The following process types are defined for blktap:
blktap_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.
COMMANDS
semanage fcontext can also be used to manipulate default file context
mappings.
semanage permissive can also be used to manipulate whether or not a
process type is permissive.
semanage module can also be used to enable/disable/install/remove pol‐
icy modules.
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), blktap(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com blktap blktap_selinux(8)