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<h1 align="center">alsa_selinux</h1>
<a href="#NAME">NAME</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#ENTRYPOINTS">ENTRYPOINTS</a><br>
<a href="#PROCESS TYPES">PROCESS TYPES</a><br>
<a href="#BOOLEANS">BOOLEANS</a><br>
<a href="#MANAGED FILES">MANAGED FILES</a><br>
<a href="#FILE CONTEXTS">FILE CONTEXTS</a><br>
<a href="#COMMANDS">COMMANDS</a><br>
<a href="#AUTHOR">AUTHOR</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">alsa_selinux
− Security Enhanced Linux Policy for the alsa
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the alsa processes via flexible mandatory
access control.</p>
<p style="margin-left:11%; margin-top: 1em">The alsa
processes execute with the alsa_t SELinux type. You can
check if you have these processes running by executing the
<b>ps</b> command with the <b>−Z</b> qualifier.</p>
<p style="margin-left:11%; margin-top: 1em">For
example:</p>
<p style="margin-left:11%; margin-top: 1em"><b>ps -eZ |
grep alsa_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The alsa_t
SELinux type can be entered via the <b>alsa_exec_t</b> file
type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the alsa_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/sbin/salsa,
/sbin/alsactl, /usr/bin/ainit, /bin/alsaunmute,
/usr/sbin/salsa, /usr/sbin/alsactl, /usr/bin/alsaunmute</p>
<h2>PROCESS TYPES
<a name="PROCESS TYPES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux defines
process types (domains) for each process running on the
system</p>
<p style="margin-left:11%; margin-top: 1em">You can see the
context of a process using the <b>−Z</b> option to
<b>ps</b></p>
<p style="margin-left:11%; margin-top: 1em">Policy governs
the access confined processes have to files. SELinux alsa
policy is very flexible allowing users to setup their alsa
processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for alsa:</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a alsa_t</b> can be used to make the
process type alsa_t permissive. SELinux does not deny access
to permissive process types, but the AVC (SELinux denials)
messages are still generated.</p>
<h2>BOOLEANS
<a name="BOOLEANS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux policy
is customizable based on least access required. alsa policy
is extremely flexible and has several booleans that allow
you to manipulate the policy and run alsa with the tightest
access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all domains to execute in fips_mode, you must turn on
the fips_mode boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
fips_mode 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow system to run with NIS, you must turn on the
nis_enabled boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
nis_enabled 1</b></p>
<h2>MANAGED FILES
<a name="MANAGED FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type alsa_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.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_etc_rw_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/asound(/.*)?
<br>
/etc/alsa/pcm(/.*)? <br>
/usr/share/alsa/pcm(/.*)? <br>
/etc/asound.state <br>
/etc/alsa/asound.state <br>
/usr/share/alsa/alsa.conf</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_lock_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lock/asound.state.lock</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/alsa(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/run/alsactl.pid</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5_host_rcache_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/tmp/krb5_0.rcache2
<br>
/var/cache/krb5rcache(/.*)? <br>
/var/tmp/nfs_0 <br>
/var/tmp/DNS_25 <br>
/var/tmp/host_0 <br>
/var/tmp/imap_0 <br>
/var/tmp/HTTP_23 <br>
/var/tmp/HTTP_48 <br>
/var/tmp/ldap_55 <br>
/var/tmp/ldap_487 <br>
/var/tmp/ldapmap1_0</p>
<p style="margin-left:11%; margin-top: 1em"><b>sysfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/sys(/.*)?</p>
<h2>FILE CONTEXTS
<a name="FILE CONTEXTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux
requires files to have an extended attribute to define the
file type.</p>
<p style="margin-left:11%; margin-top: 1em">You can see the
context of a file using the <b>−Z</b> option to
<b>ls</b></p>
<p style="margin-left:11%; margin-top: 1em">Policy governs
the access confined processes have to these files. SELinux
alsa policy is very flexible allowing users to setup their
alsa processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em"><b>STANDARD
FILE CONTEXT</b></p>
<p style="margin-left:11%; margin-top: 1em">SELinux defines
the file context types for the alsa, if you wanted to store
files with these types in a different paths, you need to
execute the semanage command to specify alternate labeling
and then use restorecon to put the labels on disk.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -t alsa_unit_file_t
’/srv/myalsa_content(/.*)?’ <br>
restorecon -R -v /srv/myalsa_content</b></p>
<p style="margin-left:11%; margin-top: 1em">Note: SELinux
often uses regular expressions to specify labels that match
multiple files.</p>
<p style="margin-left:11%; margin-top: 1em"><i>The
following file types are defined for alsa:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_etc_rw_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_etc_rw_t type, if you want to treat the files
as alsa etc read/write content. <br>
Paths:</p>
<p style="margin-left:18%;">/etc/asound(/.*)?,
/etc/alsa/pcm(/.*)?, /usr/share/alsa/pcm(/.*)?,
/etc/asound.state, /etc/alsa/asound.state,
/usr/share/alsa/alsa.conf</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_exec_t type, if you want to transition an
executable to the alsa_t domain. <br>
Paths:</p>
<p style="margin-left:18%;">/sbin/salsa, /sbin/alsactl,
/usr/bin/ainit, /bin/alsaunmute, /usr/sbin/salsa,
/usr/sbin/alsactl, /usr/bin/alsaunmute</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_home_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_home_t type, if you want to store alsa files
in the users home directory.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_lock_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_lock_t type, if you want to treat the files as
alsa lock data, stored under the /var/lock directory</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_tmp_t type, if you want to store alsa
temporary files in the /tmp directories.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_tmpfs_t type, if you want to store alsa files
on a tmpfs file system.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_unit_file_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_unit_file_t type, if you want to treat the
files as alsa unit content.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_var_lib_t type, if you want to store the alsa
files under the /var/lib directory.</p>
<p style="margin-left:11%; margin-top: 1em"><b>alsa_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the alsa_var_run_t type, if you want to store the alsa
files under the /run or /var/run directory.</p>
<p style="margin-left:11%; margin-top: 1em">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 <b>semanage fcontext</b> command. This will
modify the SELinux labeling database. You will need to use
<b>restorecon</b> to apply the labels.</p>
<h2>COMMANDS
<a name="COMMANDS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext</b> can also be used to manipulate default file
context mappings.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
permissive</b> can also be used to manipulate whether or not
a process type is permissive.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
module</b> can also be used to enable/disable/install/remove
policy modules.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
boolean</b> can also be used to manipulate the booleans</p>
<p style="margin-left:11%; margin-top: 1em"><b>system-config-selinux</b>
is a GUI tool available to customize SELinux policy
settings.</p>
<h2>AUTHOR
<a name="AUTHOR"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">This manual
page was auto-generated using <b>sepolicy manpage .</b></p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">selinux(8),
alsa(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
setsebool(8)</p>
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