## <module name="libraries" layer="system">

## <summary>Policy for system libraries.</summary>

########################################

## <interface name="libs_domtrans_ldconfig">

##	<description>

##		Execute ldconfig in the ldconfig domain.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_domtrans_ldconfig',`

	requires_block_template(`$0'_depend)

	domain_auto_trans($1,ldconfig_exec_t,ldconfig_t)

	allow $1 ldconfig_t:fd use;

	allow ldconfig_t $1:fd use;

	allow ldconfig_t $1:fifo_file rw_file_perms;

	allow ldconfig_t $1:process sigchld;

')

define(`libs_domtrans_ldconfig_depend',`

	type ldconfig_t, ldconfig_exec_t;

	class file rx_file_perms;

	class process { transition noatsecure siginh rlimitinh sigchld };

	class fd use;

	class fifo_file rw_file_perms;

')

########################################

## <interface name="libs_run_ldconfig">

##	<description>

##		Execute ldconfig in the ldconfig domain.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

##	<parameter name="role">

##		The role to allow the ldconfig domain.

##	</parameter>

##	<parameter name="terminal">

##		The type of the terminal allow the ldconfig domain to use.

##	</parameter>

## </interface>

#

define(`libs_run_ldconfig',`

	requires_block_template(`$0'_depend)

	libs_domtrans_ldconfig($1)

	role $2 types ldconfig_t;

	allow ldconfig_t $3:chr_file { getattr read write ioctl };

')

define(`libs_run_ldconfig_depend',`

	type ldconfig_t;

	class chr_file { getattr read write ioctl };

')

########################################

## <interface name="libs_use_ld_so">

##	<description>

##		Use the dynamic link/loader for automatic loading

##		of shared libraries.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_use_ld_so',`

	requires_block_template(`$0'_depend)

	files_read_generic_etc_files_directory($1)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:lnk_file r_file_perms;

	allow $1 ld_so_t:lnk_file r_file_perms;

	allow $1 ld_so_t:file rx_file_perms;

	allow $1 ld_so_cache_t:file r_file_perms;

')

define(`libs_use_ld_so_depend',`

	type lib_t, ld_so_t, ld_so_cache_t;

	class dir r_dir_perms;

	class lnk_file r_file_perms;

	class file rx_file_perms;

')

########################################

## <interface name="libs_legacy_use_ld_so">

##	<description>

##		Use the dynamic link/loader for automatic loading

##		of shared libraries with legacy support.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_legacy_use_ld_so',`

	requires_block_template(`$0'_depend)

	libs_use_ld_so($1)

	allow $1 ld_so_t:file execmod;

	allow $1 ld_so_cache_t:file execute;

')

define(`libs_legacy_use_ld_so_depend',`

	type ld_so_t, ld_so_cache_t;

	class file { execute execmod };

')

########################################

## <interface name="libs_exec_ld_so">

##	<description>

##		Execute the dynamic link/loader in the caller's

##		domain.  This is commonly needed for the

##		/usr/bin/ldd program.  Note: this can be used

##		to execute any binary that the caller can

##		read, even if the caller does not have execute

##		permissions.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_exec_ld_so',`

	requires_block_template(`$0'_depend)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:lnk_file r_file_perms;

	allow $1 ld_so_t:lnk_file r_file_perms;

	allow $1 ld_so_t:file { r_file_perms execute execute_no_trans };

')

define(`libs_exec_ld_so_depend',`

	type lib_t, ld_so_t;

	class dir r_dir_perms;

	class lnk_file r_file_perms;

	class file { r_file_perms execute execute_no_trans };

')

########################################

## <interface name="libs_rw_ld_so_cache">

##	<description>

##		Modify the dynamic link/loader's cached listing

##		of shared libraries.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_rw_ld_so_cache',`

	requires_block_template(`$0'_depend)

	files_read_generic_etc_files_directory($1)

	allow $1 ld_so_cache_t:file rw_file_perms;

')

define(`libs_rw_ld_so_cache_depend',`

	type ld_so_cache_t;

	class file rw_file_perms;

')

########################################

## <interface name="libs_read_lib">

##	<description>

##		Read files in the library directories, such

##		as static libraries.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_read_lib',`

	requires_block_template(`$0'_depend)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:{ file lnk_file } r_file_perms;

')

define(`libs_read_lib_depend',`

	type lib_t;

	class dir r_dir_perms;

	class lnk_file r_file_perms;

	class file r_file_perms;

')

########################################

## <interface name="libs_exec_lib_files">

##	<description>

##		Execute library scripts in the caller domain.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_exec_lib_files',`

	requires_block_template(`$0'_depend)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:lnk_file r_file_perms;

	allow $1 lib_t:file { getattr read execute execute_no_trans };

')

define(`libs_exec_lib_files_depend',`

	type lib_t;

	class dir r_dir_perms;

	class lnk_file r_file_perms;

	class file { getattr read execute execute_no_trans };

')

########################################

## <interface name="libs_use_shared_libs">

##	<description>

##		Load and execute functions from shared libraries.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_use_shared_libs',`

	requires_block_template(`$0'_depend)

	files_search_usr($1)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:lnk_file r_file_perms;

	allow $1 { shlib_t texrel_shlib_t }:lnk_file r_file_perms;

	allow $1 { shlib_t texrel_shlib_t }:file rx_file_perms;

')

define(`libs_use_shared_libs_depend',`

	type lib_t, shlib_t, texrel_shlib_t;

	class dir r_dir_perms;

	class lnk_file r_file_perms;

	class file rx_dir_perms;

')

########################################

## <interface name="libs_legacy_use_shared_libs">

##	<description>

##		Load and execute functions from shared libraries,

##		with legacy support.

##	</description>

##	<parameter name="domain">

##		The type of the process performing this action.

##	</parameter>

## </interface>

#

define(`libs_legacy_use_shared_libs',`

	requires_block_template(`$0'_depend)

	libs_use_shared_libs($1)

	allow $1 { shlib_t texrel_shlib_t }:file execmod;

')

define(`libs_legacy_use_shared_libs_depend',`

	type shlib_t, texrel_shlib_t;

	class file execmod;

')

## </module>