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

policy_module(libraries,1.6.0)

########################################
#
# Declarations
#

#
# ld_so_cache_t is the type of /etc/ld.so.cache.
#
type ld_so_cache_t;
files_type(ld_so_cache_t)

#
# ld_so_t is the type of the system dynamic loaders.
#
type ld_so_t;
files_type(ld_so_t)

type ldconfig_t;
type ldconfig_exec_t;
init_system_domain(ldconfig_t,ldconfig_exec_t)
role system_r types ldconfig_t;

type ldconfig_tmp_t;
files_tmp_file(ldconfig_tmp_t)

#
# lib_t is the type of files in the system lib directories.
#
type lib_t;
files_type(lib_t)

#
# shlib_t is the type of shared objects in the system lib
# directories.
#
ifdef(`targeted_policy',`
	typealias lib_t alias shlib_t;
',`
	type shlib_t;
	files_type(shlib_t)
')

#
# textrel_shlib_t is the type of shared objects in the system lib
# directories, which require text relocation.
#
type textrel_shlib_t alias texrel_shlib_t;
files_type(textrel_shlib_t)

########################################
#
# ldconfig local policy
#

allow ldconfig_t self:capability sys_chroot;

allow ldconfig_t ld_so_cache_t:file manage_file_perms;
files_etc_filetrans(ldconfig_t,ld_so_cache_t,file)

manage_dirs_pattern(ldconfig_t,ldconfig_tmp_t,ldconfig_tmp_t)
manage_files_pattern(ldconfig_t,ldconfig_tmp_t,ldconfig_tmp_t)
files_tmp_filetrans(ldconfig_t, ldconfig_tmp_t, { file dir })

manage_lnk_files_pattern(ldconfig_t,lib_t,lib_t)

kernel_read_system_state(ldconfig_t)

fs_getattr_xattr_fs(ldconfig_t)

domain_use_interactive_fds(ldconfig_t)

files_search_var_lib(ldconfig_t)
files_read_etc_files(ldconfig_t)
files_search_tmp(ldconfig_t)
files_search_usr(ldconfig_t)
# for when /etc/ld.so.cache is mislabeled:
files_delete_etc_files(ldconfig_t)

init_use_script_ptys(ldconfig_t)

libs_use_ld_so(ldconfig_t)
libs_use_shared_libs(ldconfig_t)

miscfiles_read_localization(ldconfig_t)

logging_send_syslog_msg(ldconfig_t)

userdom_use_all_users_fds(ldconfig_t)

ifdef(`hide_broken_symptoms',`
	optional_policy(`
		unconfined_dontaudit_rw_tcp_sockets(ldconfig_t)
	')
')

ifdef(`targeted_policy',`
	allow ldconfig_t lib_t:file read_file_perms;
	files_read_generic_tmp_symlinks(ldconfig_t)
	term_dontaudit_use_generic_ptys(ldconfig_t)
	term_dontaudit_use_unallocated_ttys(ldconfig_t)
')

optional_policy(`
	# dontaudit access to /usr/lib/apache, normal programs cannot read these libs anyway
	apache_dontaudit_search_modules(ldconfig_t)
')

optional_policy(`
	# When you install a kernel the postinstall builds a initrd image in tmp 
	# and executes ldconfig on it.  If you dont allow this kernel installs 
	# blow up.
	rpm_manage_script_tmp_files(ldconfig_t)
')