selinux-policy/policy/modules/system/libraries.if

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

########################################
## <summary>
##	Execute ldconfig in the ldconfig domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_domtrans_ldconfig',`
	gen_require(`
		type ldconfig_t, ldconfig_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1,ldconfig_exec_t,ldconfig_t)
')

########################################
## <summary>
##	Execute ldconfig in the ldconfig domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to allow the ldconfig domain.
##	</summary>
## </param>
## <param name="terminal">
##	<summary>
##	The type of the terminal allow the ldconfig domain to use.
##	</summary>
## </param>
## <rolecap/>
#
interface(`libs_run_ldconfig',`
	gen_require(`
		type ldconfig_t;
	')

	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">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_use_ld_so',`
	gen_require(`
		type lib_t, ld_so_t, ld_so_cache_t;
	')

	files_list_etc($1)
	allow $1 lib_t:dir list_dir_perms;

	read_lnk_files_pattern($1,lib_t,{ lib_t ld_so_t })
	mmap_files_pattern($1,lib_t,ld_so_t)

	allow $1 ld_so_cache_t:file read_file_perms;
')

########################################
## <summary>
##	Use the dynamic link/loader for automatic loading
##	of shared libraries with legacy support.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_legacy_use_ld_so',`
	gen_require(`
		type ld_so_t, ld_so_cache_t;
	')

	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">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_exec_ld_so',`
	gen_require(`
		type lib_t, ld_so_t;
	')

	allow $1 lib_t:dir list_dir_perms;
	read_lnk_files_pattern($1,lib_t,{ lib_t ld_so_t })
	exec_files_pattern($1,lib_t,ld_so_t)
')

########################################
## <summary>
##	Create, read, write, and delete the
##	dynamic link/loader.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_manage_ld_so',`
	gen_require(`
		type lib_t, ld_so_t;
	')

	manage_files_pattern($1,lib_t,ld_so_t)
')

########################################
## <summary>
##	Relabel to and from the type used for
##	the dynamic link/loader.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_relabel_ld_so',`
	gen_require(`
		type lib_t, ld_so_t;
	')

	relabel_files_pattern($1,lib_t,ld_so_t)
')

########################################
## <summary>
##	Modify the dynamic link/loader's cached listing
##	of shared libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_rw_ld_so_cache',`
	gen_require(`
		type ld_so_cache_t;
	')

	files_list_etc($1)
	allow $1 ld_so_cache_t:file rw_file_perms;
')

########################################
## <summary>
##	Search library directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_search_lib',`
	gen_require(`
		type lib_t;
	')

	allow $1 lib_t:dir search_dir_perms;
')

########################################
## <summary>
##	Do not audit attempts to write to library directories.
## </summary>
## <desc>
##	<p>
##	Do not audit attempts to write to library directories.
##	Typically this is used to quiet attempts to recompile
##	python byte code.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_dontaudit_write_lib_dirs',`
	gen_require(`
		type lib_t;
	')

	dontaudit $1 lib_t:dir write;
')

########################################
## <summary>
##	Create, read, write, and delete library directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_manage_lib_dirs',`
	gen_require(`
		type lib_t;
	')

	allow $1 lib_t:dir manage_dir_perms;
')

########################################
## <summary>
##	Read files in the library directories, such
##	as static libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_read_lib_files',`
	gen_require(`
		type lib_t;
	')

	files_search_usr($1)
	list_dirs_pattern($1,lib_t,lib_t)
	read_files_pattern($1,lib_t,lib_t)
	read_lnk_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Execute library scripts in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_exec_lib_files',`
	gen_require(`
		type lib_t;
	')

	files_search_usr($1)
	allow $1 lib_t:dir list_dir_perms;
	read_lnk_files_pattern($1,lib_t,lib_t)
	exec_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Load and execute functions from generic
##	lib files as shared libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_use_lib_files',`
	gen_require(`
		type lib_t;
	')

	files_list_usr($1)
	allow $1 lib_t:dir list_dir_perms;
	read_lnk_files_pattern($1,lib_t,lib_t)
	mmap_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Create, read, write, and delete generic
##	files in library directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_manage_lib_files',`
	gen_require(`
		type lib_t;
	')

	manage_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Relabel files to the type used in library directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_relabelto_lib_files',`
	gen_require(`
		type lib_t;
	')

	relabelto_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Relabel to and from the type used
##	for generic lib files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_relabel_lib_files',`
	gen_require(`
		type lib_t;
	')

	relabel_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Delete generic symlinks in library directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_delete_lib_symlinks',`
	gen_require(`
		type lib_t;
	')

	delete_lnk_files_pattern($1,lib_t,lib_t)
')

########################################
## <summary>
##	Create, read, write, and delete shared libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_manage_shared_libs',`
	gen_require(`
		type lib_t, shlib_t, textrel_shlib_t;
	')

	manage_files_pattern($1,lib_t,{ shlib_t textrel_shlib_t })
')

########################################
## <summary>
##	Load and execute functions from shared libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_use_shared_libs',`
	gen_require(`
		type lib_t, shlib_t, textrel_shlib_t;
	')

	files_list_usr($1)
	allow $1 lib_t:dir list_dir_perms;
	read_lnk_files_pattern($1,lib_t,{ lib_t shlib_t textrel_shlib_t })
	mmap_files_pattern($1,lib_t,{ shlib_t textrel_shlib_t })
	allow $1 textrel_shlib_t:file execmod;
')

########################################
## <summary>
##	Load and execute functions from shared libraries,
##	with legacy support.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`libs_legacy_use_shared_libs',`
	gen_require(`
		type shlib_t, textrel_shlib_t;
	')

	libs_use_shared_libs($1)
	allow $1 { shlib_t textrel_shlib_t }:file execmod;
')

########################################
## <summary>
##	Relabel to and from the type used for
##	shared libraries.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`libs_relabel_shared_libs',`
	gen_require(`
		type lib_t, shlib_t, textrel_shlib_t;
	')

	relabel_files_pattern($1,lib_t,{ shlib_t textrel_shlib_t })
')

########################################
## <summary>
##	Create an object in lib directories, with
##	the shared libraries type using a type transition.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="object">
##	<summary>
##	The object class of the object being created.
##	</summary>
## </param>
#
interface(`files_lib_filetrans_shared_lib',`
	gen_require(`
		type lib_t, shlib_t;
	')

	filetrans_pattern($1,lib_t,shlib_t,$2)
')