policy_module(modutils, 1.14.0)

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

#attribute_role update_modules_roles;

type kmod_t alias { update_modules_t depmod_t insmod_t };
type kmod_exec_t alias { insmod_exec_t depmod_exec_t update_modules_exec_t };
init_system_domain(kmod_t, depmod_exec_t)
init_nnp_daemon_domain(kmod_t)
application_domain(kmod_t, insmod_exec_t)
mls_file_write_all_levels(kmod_t)
mls_process_write_down(kmod_t)
role system_r types kmod_t;

type kmod_var_run_t;
files_pid_file(kmod_var_run_t)

# module loading config
type modules_conf_t;
files_config_file(modules_conf_t)

# module dependencies
type modules_dep_t;
files_type(modules_dep_t)

type kmod_tmp_t;
files_tmp_file(kmod_tmp_t)

type kmod_tmpfs_t;
files_tmpfs_file(kmod_tmpfs_t)

########################################
#
# kmod local policy
#

allow kmod_t self:capability { dac_read_search  mknod net_raw sys_nice sys_tty_config };
allow kmod_t self:process { execmem sigchld sigkill sigstop signull signal };
allow kmod_t self:system module_load;

allow kmod_t self:fifo_file rw_fifo_file_perms;

allow kmod_t self:udp_socket create_socket_perms;
allow kmod_t self:rawip_socket create_socket_perms;
allow kmod_t self:shm create_shm_perms;

# transition to kmod
domain_auto_trans(kmod_t, kmod_exec_t, kmod_t)
allow kmod_t kmod_t:fd use;

# Read module config and dependency information
list_dirs_pattern(kmod_t, modules_conf_t, modules_conf_t)
manage_files_pattern(kmod_t, modules_conf_t, modules_conf_t)
files_etc_filetrans(kmod_t, modules_conf_t, file)

list_dirs_pattern(kmod_t, modules_dep_t, modules_dep_t)
read_files_pattern(kmod_t, modules_dep_t, modules_dep_t)
allow kmod_t modules_dep_t:file map;

manage_dirs_pattern(kmod_t, kmod_var_run_t, kmod_var_run_t)
manage_files_pattern(kmod_t, kmod_var_run_t, kmod_var_run_t)
files_pid_filetrans(kmod_t, kmod_var_run_t, {dir file })

manage_dirs_pattern(kmod_t, kmod_tmp_t, kmod_tmp_t)
manage_files_pattern(kmod_t, kmod_tmp_t, kmod_tmp_t)
files_tmp_filetrans(kmod_t, kmod_tmp_t, { file dir })

can_exec(kmod_t, kmod_exec_t)
can_exec(kmod_t, update_modules_exec_t)

manage_files_pattern(kmod_t,kmod_tmpfs_t,kmod_tmpfs_t)
fs_tmpfs_filetrans(kmod_t,kmod_tmpfs_t,file)

kernel_load_unsigned_module(kmod_t)
files_manage_kernel_modules(kmod_t)
files_map_kernel_modules(kmod_t)
kernel_read_system_state(kmod_t)
kernel_read_network_state(kmod_t)
kernel_write_proc_files(kmod_t)
kernel_mount_debugfs(kmod_t)
kernel_mount_kvmfs(kmod_t)
kernel_read_debugfs(kmod_t)
kernel_request_load_module(kmod_t)
# Rules for /proc/sys/kernel/tainted
kernel_read_kernel_sysctls(kmod_t)
kernel_rw_kernel_sysctl(kmod_t)
kernel_setsched(kmod_t)

corecmd_exec_bin(kmod_t)
corecmd_exec_shell(kmod_t)

dev_rw_sysfs(kmod_t)
dev_search_usbfs(kmod_t)
dev_rw_mtrr(kmod_t)
dev_read_urand(kmod_t)
dev_rw_agp(kmod_t)
dev_read_sound(kmod_t)
dev_write_sound(kmod_t)
dev_rw_apm_bios(kmod_t)
dev_create_generic_chr_files(kmod_t)

domain_signal_all_domains(kmod_t)
domain_use_interactive_fds(kmod_t)

files_list_home(kmod_t)
files_read_boot_files(kmod_t)
files_read_kernel_modules(kmod_t)
files_load_kernel_modules(kmod_t)
files_delete_kernel_modules(kmod_t)
files_read_etc_runtime_files(kmod_t)
files_read_etc_files(kmod_t)
files_list_usr(kmod_t)
files_read_usr_files(kmod_t)
files_read_usr_src_files(kmod_t)
files_exec_etc_files(kmod_t)
# users installing vbox put kernel modules in /var/lib
files_append_var_files(kmod_t)
files_read_var_lib_files(kmod_t)
files_read_kernel_symbol_table(kmod_t)
# for nscd:
files_dontaudit_search_pids(kmod_t)
# for when /var is not mounted early in the boot:
files_dontaudit_search_isid_type_dirs(kmod_t)
# for locking: (cjp: ????)
files_write_kernel_modules(kmod_t)
allow kmod_t modules_dep_t:file manage_file_perms;
files_kernel_modules_filetrans(kmod_t, modules_dep_t, file)

fs_getattr_xattr_fs(kmod_t)
fs_dontaudit_use_tmpfs_chr_dev(kmod_t)
fs_mount_rpc_pipefs(kmod_t)
fs_rw_tracefs_files(kmod_t)
fs_search_rpc(kmod_t)

auth_use_nsswitch(kmod_t)

init_rw_initctl(kmod_t)
init_use_fds(kmod_t)
init_use_script_fds(kmod_t)
init_use_script_ptys(kmod_t)
init_spec_domtrans_script(kmod_t)
init_rw_script_tmp_files(kmod_t)
init_dontaudit_rw_stream_socket(kmod_t)

logging_send_syslog_msg(kmod_t)
logging_search_logs(kmod_t)

seutil_read_file_contexts(kmod_t)

term_use_all_inherited_terms(kmod_t)
userdom_dontaudit_search_user_home_dirs(kmod_t)
# needed by kmod in MLS
userdom_manage_user_tmp_files(kmod_t)
userdom_manage_user_tmp_pipes(kmod_t)
userdom_manage_user_tmp_symlinks(kmod_t)
userdom_manage_user_tmp_dirs(kmod_t)
userdom_read_user_home_content_files(kmod_t)
userdom_home_reader(kmod_t)
userdom_use_inherited_user_terminals(kmod_t)

kernel_domtrans_to(kmod_t, kmod_exec_t)

optional_policy(`
	alsa_domtrans(kmod_t)
')

optional_policy(`
	devicekit_use_fds_disk(kmod_t)
	devicekit_dontaudit_read_pid_files(kmod_t)
')

optional_policy(`
	firstboot_dontaudit_leaks(kmod_t)
')

optional_policy(`
    firewalld_dontaudit_write_tmp_files(kmod_t)
	firewallgui_dontaudit_rw_pipes(kmod_t)
')

optional_policy(`
    iptables_read_var_run(kmod_t)
')

optional_policy(`
	kdump_manage_kdumpctl_tmp_files(kmod_t)
')

optional_policy(`
	mount_domtrans(kmod_t)
')

optional_policy(`
	rhgb_use_fds(kmod_t)
	rhgb_dontaudit_use_ptys(kmod_t)

	xserver_dontaudit_write_log(kmod_t)
	xserver_stream_connect(kmod_t)
	xserver_dontaudit_rw_stream_sockets(kmod_t)

	ifdef(`hide_broken_symptoms',`
		xserver_dontaudit_rw_tcp_sockets(kmod_t)
	')
')

optional_policy(`
	rpm_rw_pipes(kmod_t)
	rpm_manage_script_tmp_files(kmod_t)
')

optional_policy(`
	unconfined_domain(kmod_t)
	unconfined_dontaudit_rw_pipes(kmod_t)
')

optional_policy(`
	virt_dontaudit_write_pipes(kmod_t)
')

optional_policy(`
	# cjp: why is this needed:
	dev_rw_xserver_misc(kmod_t)

	xserver_getattr_log(kmod_t)
')

optional_policy(`
	bootloader_rw_tmp_files(kmod_t)
')

ifdef(`distro_gentoo',`
	files_search_pids(kmod_t)
	files_getattr_usr_src_files(kmod_t)
	files_list_isid_type_dirs(kmod_t) # /var

	# update-modules on Gentoo throws errors when run because it
	# sources /etc/init.d/functions.sh, which always scans
	# /var/lib/init.d to set SOFTLEVEL environment var.
	# This is never used by update-modules.
	files_dontaudit_search_var_lib(kmod_t)
	init_dontaudit_read_script_status_files(kmod_t)

	optional_policy(`
		consoletype_exec(kmod_t)
	')
')