virt_qemu_ga_selinux(8) SELinux Policy virt_qemu_ga virt_qemu_ga_selinux(8)NAMEvirt_qemu_ga_selinux - Security Enhanced Linux Policy for the
virt_qemu_ga processes
DESCRIPTION
Security-Enhanced Linux secures the virt_qemu_ga processes via flexible
mandatory access control.
The virt_qemu_ga processes execute with the virt_qemu_ga_t SELinux
type. You can check if you have these processes running by executing
the ps command with the -Z qualifier.
For example:
ps -eZ | grep virt_qemu_ga_t
ENTRYPOINTS
The virt_qemu_ga_t SELinux type can be entered via the
virt_qemu_ga_exec_t file type.
The default entrypoint paths for the virt_qemu_ga_t domain are the fol‐
lowing:
/usr/libexec/qemu-ga(/.*)?, /usr/bin/qemu-ga
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
virt_qemu_ga policy is very flexible allowing users to setup their
virt_qemu_ga processes in as secure a method as possible.
The following process types are defined for virt_qemu_ga:
virt_qemu_ga_unconfined_t, virt_qemu_ga_t
Note: semanage permissive -a virt_qemu_ga_t can be used to make the
process type virt_qemu_ga_t permissive. SELinux does not deny access to
permissive process types, but the AVC (SELinux denials) messages are
still generated.
BOOLEANS
SELinux policy is customizable based on least access required.
virt_qemu_ga policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run virt_qemu_ga with the tight‐
est access possible.
If you want to allow all daemons to write corefiles to /, you must turn
on the daemons_dump_core boolean. Disabled by default.
setsebool -P daemons_dump_core 1
If you want to enable cluster mode for daemons, you must turn on the
daemons_enable_cluster_mode boolean. Enabled by default.
setsebool -P daemons_enable_cluster_mode 1
If you want to allow all daemons to use tcp wrappers, you must turn on
the daemons_use_tcp_wrapper boolean. Disabled by default.
setsebool -P daemons_use_tcp_wrapper 1
If you want to allow all daemons the ability to read/write terminals,
you must turn on the daemons_use_tty boolean. Disabled by default.
setsebool -P daemons_use_tty 1
If you want to deny any process from ptracing or debugging any other
processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors,
you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you
must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 1
If you want to allow all domains to execute in fips_mode, you must turn
on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to enable reading of urandom for all domains, you must turn
on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
If you want to allow confined applications to use nscd shared memory,
you must turn on the nscd_use_shm boolean. Disabled by default.
setsebool -P nscd_use_shm 1
MANAGED FILES
The SELinux process type virt_qemu_ga_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 per‐
missions.
cluster_conf_t
/etc/cluster(/.*)?
cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
cluster_var_run_t
/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/cpglockd.pid
/var/run/corosync.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
devicekit_var_run_t
/var/run/udisks.*
/var/run/devkit(/.*)?
/var/run/upower(/.*)?
/var/run/pm-utils(/.*)?
/var/run/DeviceKit-disks(/.*)?
root_t
/
/initrd
sysfs_t
/sys(/.*)?
systemd_passwd_var_run_t
/var/run/systemd/ask-password(/.*)?
/var/run/systemd/ask-password-block(/.*)?
virt_qemu_ga_data_t
virt_qemu_ga_log_t
/var/log/qemu-ga(/.*)?
/var/log/qemu-ga.log
virt_qemu_ga_tmp_t
virt_qemu_ga_var_run_t
/var/run/qga.state
/var/run/qemu-ga.pid
FILE 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 virt_qemu_ga policy is very flexible allowing users to setup
their virt_qemu_ga processes in as secure a method as possible.
EQUIVALENCE DIRECTORIES
virt_qemu_ga policy stores data with multiple different file context
types under the /var/log/qemu-ga directory. If you would like to store
the data in a different directory you can use the semanage command to
create an equivalence mapping. If you wanted to store this data under
the /srv dirctory you would execute the following command:
semanage fcontext -a -e /var/log/qemu-ga /srv/qemu-ga
restorecon -R -v /srv/qemu-ga
STANDARD FILE CONTEXT
SELinux defines the file context types for the virt_qemu_ga, if you
wanted to store files with these types in a diffent paths, you need to
execute the semanage command to sepecify alternate labeling and then
use restorecon to put the labels on disk.
semanage fcontext -a-t virt_qemu_ga_data_t '/srv/virt_qemu_ga/con‐
tent(/.*)?'
restorecon -R -v /srv/myvirt_qemu_ga_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for virt_qemu_ga:
virt_qemu_ga_data_t
- Set files with the virt_qemu_ga_data_t type, if you want to treat the
files as virt qemu ga content.
virt_qemu_ga_exec_t
- Set files with the virt_qemu_ga_exec_t type, if you want to transi‐
tion an executable to the virt_qemu_ga_t domain.
Paths:
/usr/libexec/qemu-ga(/.*)?, /usr/bin/qemu-ga
virt_qemu_ga_log_t
- Set files with the virt_qemu_ga_log_t type, if you want to treat the
data as virt qemu ga log data, usually stored under the /var/log direc‐
tory.
Paths:
/var/log/qemu-ga(/.*)?, /var/log/qemu-ga.log
virt_qemu_ga_tmp_t
- Set files with the virt_qemu_ga_tmp_t type, if you want to store virt
qemu ga temporary files in the /tmp directories.
virt_qemu_ga_unconfined_exec_t
- Set files with the virt_qemu_ga_unconfined_exec_t type, if you want
to transition an executable to the virt_qemu_ga_unconfined_t domain.
Paths:
/etc/qemu-ga/fsfreeze-hook.d(/.*)?, /var/run/qemu-ga/fsfreeze-
hook.d(/.*)?, /usr/libexec/qemu-ga/fsfreeze-hook.d(/.*)?
virt_qemu_ga_var_run_t
- Set files with the virt_qemu_ga_var_run_t type, if you want to store
the virt qemu ga files under the /run or /var/run directory.
Paths:
/var/run/qga.state, /var/run/qemu-ga.pid
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 data‐
base. You will need to use restorecon to apply the labels.
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 auto-generated using sepolicy manpage .
SEE ALSOselinux(8), virt_qemu_ga(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8) , setsebool(8), virt_qemu_ga_unconfined_selinux(8),
virt_qemu_ga_unconfined_selinux(8)virt_qemu_ga 13-11-20 virt_qemu_ga_selinux(8)
