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

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

## <summary>

##	Execute ldconfig in the ldconfig domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_domtrans_ldconfig',`

	gen_require(`

		type ldconfig_t, ldconfig_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	corecmd_search_sbin($1)

	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;

')

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

## <summary>

##	Execute ldconfig in the ldconfig domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

## <param name="role">

##	The role to allow the ldconfig domain.

## </param>

## <param name="terminal">

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

## </param>

#

interface(`libs_run_ldconfig',`

	gen_require(`

		type ldconfig_t;

		class chr_file rw_term_perms;

	')

	libs_domtrans_ldconfig($1)

	role $2 types ldconfig_t;

	allow ldconfig_t $3:chr_file rw_term_perms;

')

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

## <summary>

##	Use the dynamic link/loader for automatic loading

##	of shared libraries.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_use_ld_so',`

	gen_require(`

		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;

	')

	files_list_etc($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;

')

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

## <summary>

##	Use the dynamic link/loader for automatic loading

##	of shared libraries with legacy support.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_legacy_use_ld_so',`

	gen_require(`

		type ld_so_t, ld_so_cache_t;

		class file { execute execmod };

	')

	libs_use_ld_so($1)

	allow $1 ld_so_t:file execmod;

	allow $1 ld_so_cache_t:file execute;

')

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

## <summary>

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

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_exec_ld_so',`

	gen_require(`

		type lib_t, ld_so_t;

		class dir r_dir_perms;

		class lnk_file r_file_perms;

	')

	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;

	can_exec($1,ld_so_t)

')

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

## <summary>

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

##	of shared libraries.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_rw_ld_so_cache',`

	gen_require(`

		type ld_so_cache_t;

		class file rw_file_perms;

	')

	files_list_etc($1)

	allow $1 ld_so_cache_t:file rw_file_perms;

')

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

## <summary>

##	Search lib directories.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_search_lib',`

	gen_require(`

		type lib_t;

		class dir search;

	')

	allow $1 lib_t:dir search;

')

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

## <summary>

##	Read files in the library directories, such

##	as static libraries.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_read_lib',`

	gen_require(`

		type lib_t;

		class dir r_dir_perms;

		class lnk_file r_file_perms;

		class file r_file_perms;

	')

	files_search_usr($1)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:{ file lnk_file } r_file_perms;

')

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

## <summary>

##	Execute library scripts in the caller domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_exec_lib_files',`

	gen_require(`

		type lib_t;

		class dir r_dir_perms;

		class lnk_file r_file_perms;

	')

	files_search_usr($1)

	allow $1 lib_t:dir r_dir_perms;

	allow $1 lib_t:lnk_file r_file_perms;

	can_exec($1,lib_t)

')

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

## <summary>

##	Relabel files to the type used in library directories.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_relabelto_lib_files',`

	gen_require(`

		type lib_t;

		class file relabelto;

	')

	allow $1 lib_t:file relabelto;

')

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

## <summary>

##	Load and execute functions from shared libraries.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_use_shared_libs',`

	gen_require(`

		type lib_t, shlib_t, texrel_shlib_t;

		class dir r_dir_perms;

		class lnk_file r_file_perms;

		class file { rx_file_perms execmod };

	')

	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;

	allow $1 texrel_shlib_t:file execmod;

')

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

## <summary>

##	Load and execute functions from shared libraries,

##	with legacy support.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`libs_legacy_use_shared_libs',`

	gen_require(`

		type shlib_t, texrel_shlib_t;

		class file execmod;

	')

	libs_use_shared_libs($1)

	allow $1 { shlib_t texrel_shlib_t }:file execmod;

')