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update_modules_selinux(8)SELinux Policy update_moduleupdate_modules_selinux(8)

NAME
       update_modules_selinux	-  Security  Enhanced  Linux  Policy  for  the
       update_modules processes

DESCRIPTION
       Security-Enhanced Linux secures the update_modules processes via flexi‐
       ble mandatory access control.

       The  update_modules processes execute with the update_modules_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 update_modules_t

ENTRYPOINTS
       The  update_modules_t  SELinux  type can be entered via the update_mod‐
       ules_exec_t file type.

       The default entrypoint paths for the update_modules_t  domain  are  the
       following:

       /sbin/modules-update,  /sbin/update-modules,  /usr/sbin/modules-update,
       /usr/sbin/update-modules, /sbin/generate-modprobe.conf,	/usr/sbin/gen‐
       erate-modprobe.conf

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

       The following process types are defined for update_modules:

       update_modules_t

       Note: semanage permissive -a update_modules_t can be used to  make  the
       process	type update_modules_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.
       update_modules policy is extremely flexible and	has  several  booleans
       that allow you to manipulate the policy and run update_modules with the
       tightest access possible.

       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

MANAGED FILES
       The SELinux process type update_modules_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.

       modules_conf_t

	    /etc/modprobe.d(/.*)?
	    /etc/modules.conf.*
	    /etc/modprobe.conf.*
	    /lib/modules/modprobe.conf
	    /usr/lib/modules/modprobe.conf

       modules_dep_t

	    /lib/modules/[^/]+/modules..+

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

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the update_modules,  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 update_modules_exec_t '/srv/update_modules/con‐
       tent(/.*)?'
       restorecon -R -v /srv/myupdate_modules_content

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

       The following file types are defined for update_modules:

       update_modules_exec_t

       - Set files with the update_modules_exec_t type, if you want to transi‐
       tion an executable to the update_modules_t domain.

       Paths:
	    /sbin/modules-update,   /sbin/update-modules,   /usr/sbin/modules-
	    update,   /usr/sbin/update-modules,	 /sbin/generate-modprobe.conf,
	    /usr/sbin/generate-modprobe.conf

       update_modules_tmp_t

       - Set files with the update_modules_tmp_t type, if you  want  to	 store
       update modules temporary files in the /tmp directories.

       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 ALSO
       selinux(8), update_modules(8),  semanage(8),  restorecon(8),  chcon(1),
       sepolicy(8) , setsebool(8)

update_modules			   13-11-20	     update_modules_selinux(8)
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