asterisk_selinux man page on Oracle

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asterisk_selinux(8)	    SELinux Policy asterisk	   asterisk_selinux(8)

NAME
       asterisk_selinux - Security Enhanced Linux Policy for the asterisk pro‐
       cesses

DESCRIPTION
       Security-Enhanced Linux secures the  asterisk  processes	 via  flexible
       mandatory access control.

       The  asterisk  processes	 execute with the asterisk_t SELinux type. You
       can check if you have these processes running by executing the ps  com‐
       mand with the -Z qualifier.

       For example:

       ps -eZ | grep asterisk_t

ENTRYPOINTS
       The asterisk_t SELinux type can be entered via the asterisk_exec_t file
       type.

       The default entrypoint paths for the asterisk_t domain are the  follow‐
       ing:

       /usr/sbin/asterisk

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
       asterisk policy is very flexible allowing users to setup their asterisk
       processes in as secure a method as possible.

       The following process types are defined for asterisk:

       asterisk_t

       Note: semanage permissive -a asterisk_t can be used to make the process
       type  asterisk_t permissive. SELinux does not deny access to permissive
       process types, but the AVC (SELinux denials) messages are still	gener‐
       ated.

BOOLEANS
       SELinux	policy is customizable based on least access required.	aster‐
       isk policy is extremely flexible and has several	 booleans  that	 allow
       you  to manipulate the policy and run asterisk 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 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 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. Enabled by default.

       setsebool -P nscd_use_shm 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 asterisk_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
       asterisk_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	asterisk policy is very flexible allowing users to setup their
       asterisk processes in as secure a method as possible.

       The following port types are defined for asterisk:

       asterisk_port_t

       Default Defined Ports:
		 tcp 1720
		 udp 2427,2727,4569

MANAGED FILES
       The SELinux process type asterisk_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.

       asterisk_log_t

	    /var/log/asterisk(/.*)?

       asterisk_spool_t

	    /var/spool/asterisk(/.*)?

       asterisk_tmp_t

       asterisk_tmpfs_t

       asterisk_var_lib_t

	    /var/lib/asterisk(/.*)?

       asterisk_var_run_t

	    /var/run/asterisk.*

       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

       root_t

	    /
	    /initrd

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 asterisk policy is very flexible allowing users to setup	 their
       asterisk processes in as secure a method as possible.

       STANDARD FILE CONTEXT

       SELinux	defines the file context types for the asterisk, 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 asterisk_etc_t '/srv/asterisk/content(/.*)?'
       restorecon -R -v /srv/myasterisk_content

       Note: SELinux often uses regular expressions  to	 specify  labels  that
       match multiple files.

       The following file types are defined for asterisk:

       asterisk_etc_t

       - Set files with the asterisk_etc_t type, if you want to store asterisk
       files in the /etc directories.

       asterisk_exec_t

       - Set files with the asterisk_exec_t type, if you want to transition an
       executable to the asterisk_t domain.

       asterisk_initrc_exec_t

       -  Set files with the asterisk_initrc_exec_t type, if you want to tran‐
       sition an executable to the asterisk_initrc_t domain.

       asterisk_log_t

       - Set files with the asterisk_log_t type, if you want to treat the data
       as asterisk log data, usually stored under the /var/log directory.

       asterisk_spool_t

       -  Set  files  with the asterisk_spool_t type, if you want to store the
       asterisk files under the /var/spool directory.

       asterisk_t

       - Set files with the asterisk_t type, if you want to treat the files as
       asterisk data.

       asterisk_tmp_t

       - Set files with the asterisk_tmp_t type, if you want to store asterisk
       temporary files in the /tmp directories.

       asterisk_tmpfs_t

       - Set files with the asterisk_tmpfs_t type, if you want to store aster‐
       isk files on a tmpfs file system.

       asterisk_var_lib_t

       -  Set files with the asterisk_var_lib_t type, if you want to store the
       asterisk files under the /var/lib directory.

       asterisk_var_run_t

       - Set files with the asterisk_var_run_t type, if you want to store  the
       asterisk 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 ALSO
       selinux(8), asterisk(8), semanage(8), restorecon(8),  chcon(1),	sepol‐
       icy(8) , setsebool(8)

asterisk			   14-05-08		   asterisk_selinux(8)
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