policy_module(libraries,1.2.0)

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

#

# 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)

#

# lib_t is the type of files in the system lib directories.

#

type lib_t;

files_type(lib_t)

kernel_use_ld_so_from(lib_t,ld_so_t,ld_so_cache_t)

kernel_use_shared_libs_from(lib_t,{ shlib_t textrel_shlib_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

#

type ldconfig_t;

type ldconfig_exec_t;

init_system_domain(ldconfig_t,ldconfig_exec_t)

role system_r types ldconfig_t;

allow ldconfig_t ld_so_cache_t:file create_file_perms;

files_filetrans_etc(ldconfig_t,ld_so_cache_t,file)

allow ldconfig_t lib_t:dir rw_dir_perms;

allow ldconfig_t lib_t:lnk_file { getattr create read unlink };

allow ldconfig_t ld_so_t:lnk_file r_file_perms;

allow ldconfig_t ld_so_t:file rx_file_perms;

allow ldconfig_t ld_so_cache_t:file r_file_perms;

allow ldconfig_t { shlib_t textrel_shlib_t }:lnk_file r_file_perms;

allow ldconfig_t { shlib_t textrel_shlib_t }:file rx_file_perms;

kernel_read_system_state(ldconfig_t)

fs_getattr_xattr_fs(ldconfig_t)

domain_use_wide_inherit_fd(ldconfig_t)

files_search_var_lib(ldconfig_t)

files_read_etc_files(ldconfig_t)

files_search_tmp(ldconfig_t)

# for when /etc/ld.so.cache is mislabeled:

files_delete_etc_files(ldconfig_t)

init_use_script_pty(ldconfig_t)

logging_send_syslog_msg(ldconfig_t)

userdom_use_all_user_fd(ldconfig_t)

ifdef(`hide_broken_symptoms',`

	optional_policy(`unconfined',`

		unconfined_dontaudit_rw_tcp_socket(ldconfig_t)

	')

')

ifdef(`targeted_policy',`

	allow ldconfig_t lib_t:file r_file_perms;

	unconfined_domain_template(ldconfig_t) 

')

optional_policy(`apache',`

	# dontaudit access to /usr/lib/apache, normal programs cannot read these libs anyway

	apache_dontaudit_search_modules(ldconfig_t)

')