pulseaudio_selinux(8) SELinux Policy pulseaudio pulseaudio_selinux(8)NAMEpulseaudio_selinux - Security Enhanced Linux Policy for the pulseaudio
processes
DESCRIPTION
Security-Enhanced Linux secures the pulseaudio processes via flexible
mandatory access control.
The pulseaudio processes execute with the pulseaudio_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 pulseaudio_t
ENTRYPOINTS
The pulseaudio_t SELinux type can be entered via the pulseaudio_exec_t
file type.
The default entrypoint paths for the pulseaudio_t domain are the fol‐
lowing:
/usr/bin/pulseaudio
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
pulseaudio policy is very flexible allowing users to setup their
pulseaudio processes in as secure a method as possible.
The following process types are defined for pulseaudio:
pulseaudio_t
Note: semanage permissive -a pulseaudio_t can be used to make the
process type pulseaudio_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.
pulseaudio policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run pulseaudio with the tightest
access possible.
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server, you must turn on the authlo‐
gin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 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 run with kerberos, you
must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the
nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 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
If you want to allow regular users direct dri device access, you must
turn on the selinuxuser_direct_dri_enabled boolean. Enabled by default.
setsebool -P selinuxuser_direct_dri_enabled 1
If you want to support NFS home directories, you must turn on the
use_nfs_home_dirs boolean. Disabled by default.
setsebool -P use_nfs_home_dirs 1
If you want to support SAMBA home directories, you must turn on the
use_samba_home_dirs boolean. Disabled by default.
setsebool -P use_samba_home_dirs 1
If you want to allows clients to write to the X server shared memory
segments, you must turn on the xserver_clients_write_xshm boolean. Dis‐
abled by default.
setsebool -P xserver_clients_write_xshm 1
If you want to support X userspace object manager, you must turn on the
xserver_object_manager boolean. Enabled by default.
setsebool -P xserver_object_manager 1
NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server for the pulseaudio_t, you must
turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the
pulseaudio_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
PORT TYPES
SELinux defines port types to represent TCP and UDP ports.
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 pulseaudio policy is very flexible allowing users to setup
their pulseaudio processes in as secure a method as possible.
The following port types are defined for pulseaudio:
pulseaudio_port_t
Default Defined Ports:
tcp 4713
udp 4713
MANAGED FILES
The SELinux process type pulseaudio_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 permissions.
anon_inodefs_t
cifs_t
gstreamer_home_t
/var/run/user/[^/]*/.orc(/.*)?
/root/.gstreamer-.*
/root/.cache/gstreamer-.*
/home/[^/]*/.orc(/.*)?
/home/[^/]*/.gstreamer-.*
/home/[^/]*/.nv/GLCache(/.*)?
/home/[^/]*/.cache/GLCache(/.*)?
/home/[^/]*/.cache/gstreamer-.*
/home/[^/]*/.grl-bookmarks
/home/[^/]*/.grl-bookmarks
/home/[^/]*/.grl-metadata-store
nfs_t
pulseaudio_home_t
/root/.pulse(/.*)?
/root/.config/pulse(/.*)?
/root/.esd_auth
/root/.pulse-cookie
/home/[^/]*/.pulse(/.*)?
/home/[^/]*/.config/pulse(/.*)?
/home/[^/]*/.esd_auth
/home/[^/]*/.pulse-cookie
pulseaudio_var_lib_t
/var/lib/pulse(/.*)?
pulseaudio_var_run_t
/var/run/pulse(/.*)?
user_fonts_cache_t
/root/.fontconfig(/.*)?
/root/.fonts/auto(/.*)?
/root/.fonts.cache-.*
/home/[^/]*/.fontconfig(/.*)?
/home/[^/]*/.fonts/auto(/.*)?
/home/[^/]*/.fonts.cache-.*
user_tmp_type
all user tmp files
user_tmpfs_type
all user content in tmpfs file systems
virt_tmpfs_type
xdm_tmp_t
/tmp/.X11-unix(/.*)?
/tmp/.ICE-unix(/.*)?
/tmp/.X0-lock
xserver_tmpfs_t
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 pulseaudio policy is very flexible allowing users to setup
their pulseaudio processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the pulseaudio, 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 pulseaudio_exec_t '/srv/pulseaudio/con‐
tent(/.*)?'
restorecon -R -v /srv/mypulseaudio_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for pulseaudio:
pulseaudio_exec_t
- Set files with the pulseaudio_exec_t type, if you want to transition
an executable to the pulseaudio_t domain.
pulseaudio_home_t
- Set files with the pulseaudio_home_t type, if you want to store
pulseaudio files in the users home directory.
Paths:
/root/.pulse(/.*)?, /root/.config/pulse(/.*)?, /root/.esd_auth,
/root/.pulse-cookie, /home/[^/]*/.pulse(/.*)?, /home/[^/]*/.con‐
fig/pulse(/.*)?, /home/[^/]*/.esd_auth, /home/[^/]*/.pulse-cookie
pulseaudio_tmpfs_t
- Set files with the pulseaudio_tmpfs_t type, if you want to store
pulseaudio files on a tmpfs file system.
pulseaudio_var_lib_t
- Set files with the pulseaudio_var_lib_t type, if you want to store
the pulseaudio files under the /var/lib directory.
pulseaudio_var_run_t
- Set files with the pulseaudio_var_run_t type, if you want to store
the pulseaudio files under the /run or /var/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 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 port can also be used to manipulate the port definitions
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), pulseaudio(8), semanage(8), restorecon(8), chcon(1), sepol‐
icy(8) , setsebool(8)pulseaudio 14-05-08 pulseaudio_selinux(8)
