selinux-refpolicy/policy/modules/system/locallogin.te

policy_module(locallogin, 1.19.2)

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

type local_login_t;
domain_interactive_fd(local_login_t)
auth_login_pgm_domain(local_login_t)
auth_login_entry_type(local_login_t)

type local_login_lock_t;
files_lock_file(local_login_lock_t)

type local_login_tmp_t;
files_tmp_file(local_login_tmp_t)
files_poly_parent(local_login_tmp_t)

type sulogin_t;
type sulogin_exec_t;
domain_obj_id_change_exemption(sulogin_t)
domain_subj_id_change_exemption(sulogin_t)
domain_role_change_exemption(sulogin_t)
domain_interactive_fd(sulogin_t)
init_domain(sulogin_t, sulogin_exec_t)
init_system_domain(sulogin_t, sulogin_exec_t)
role system_r types sulogin_t;

########################################
#
# Local login local policy
#

allow local_login_t self:capability { chown dac_read_search dac_override fowner fsetid kill setgid setuid sys_nice sys_resource sys_tty_config };
dontaudit local_login_t self:capability net_admin;
allow local_login_t self:process { getcap setcap setexec setrlimit setsched };
allow local_login_t self:fd use;
allow local_login_t self:fifo_file rw_fifo_file_perms;
allow local_login_t self:sock_file read_sock_file_perms;
allow local_login_t self:unix_dgram_socket create_socket_perms;
allow local_login_t self:unix_stream_socket create_stream_socket_perms;
allow local_login_t self:unix_dgram_socket sendto;
allow local_login_t self:unix_stream_socket connectto;
allow local_login_t self:shm create_shm_perms;
allow local_login_t self:sem create_sem_perms;
allow local_login_t self:msgq create_msgq_perms;
allow local_login_t self:msg { send receive };
allow local_login_t self:key { search write link };

allow local_login_t local_login_lock_t:file manage_file_perms;
files_lock_filetrans(local_login_t, local_login_lock_t, file)

allow local_login_t local_login_tmp_t:dir manage_dir_perms;
allow local_login_t local_login_tmp_t:file manage_file_perms;
files_tmp_filetrans(local_login_t, local_login_tmp_t, { file dir })

kernel_read_system_state(local_login_t)
kernel_read_kernel_sysctls(local_login_t)
kernel_search_key(local_login_t)
kernel_link_key(local_login_t)

corecmd_list_bin(local_login_t)
# cjp: these are probably not needed:
corecmd_read_bin_files(local_login_t)
corecmd_read_bin_pipes(local_login_t)
corecmd_read_bin_sockets(local_login_t)

dev_setattr_mouse_dev(local_login_t)
dev_getattr_mouse_dev(local_login_t)
dev_getattr_power_mgmt_dev(local_login_t)
dev_setattr_power_mgmt_dev(local_login_t)
dev_getattr_sound_dev(local_login_t)
dev_setattr_sound_dev(local_login_t)
dev_dontaudit_getattr_acpi_bios_dev(local_login_t)
dev_dontaudit_setattr_acpi_bios_dev(local_login_t)
dev_dontaudit_read_framebuffer(local_login_t)
dev_dontaudit_setattr_framebuffer_dev(local_login_t)
dev_dontaudit_getattr_generic_blk_files(local_login_t)
dev_dontaudit_setattr_generic_blk_files(local_login_t)
dev_dontaudit_getattr_generic_chr_files(local_login_t)
dev_dontaudit_setattr_generic_chr_files(local_login_t)
dev_dontaudit_setattr_generic_symlinks(local_login_t)
dev_dontaudit_getattr_misc_dev(local_login_t)
dev_dontaudit_setattr_misc_dev(local_login_t)
dev_dontaudit_getattr_scanner_dev(local_login_t)
dev_dontaudit_setattr_scanner_dev(local_login_t)
dev_dontaudit_search_sysfs(local_login_t)
dev_dontaudit_getattr_video_dev(local_login_t)
dev_dontaudit_setattr_video_dev(local_login_t)

domain_read_all_entry_files(local_login_t)

files_read_etc_files(local_login_t)
files_read_etc_runtime_files(local_login_t)
files_read_usr_files(local_login_t)
files_list_mnt(local_login_t)
files_list_world_readable(local_login_t)
files_read_world_readable_files(local_login_t)
files_read_world_readable_symlinks(local_login_t)
files_read_world_readable_pipes(local_login_t)
files_read_world_readable_sockets(local_login_t)
# for when /var/mail is a symlink
files_read_var_symlinks(local_login_t)

fs_search_auto_mountpoints(local_login_t)

storage_dontaudit_getattr_fixed_disk_dev(local_login_t)
storage_dontaudit_setattr_fixed_disk_dev(local_login_t)
storage_dontaudit_getattr_removable_dev(local_login_t)
storage_dontaudit_setattr_removable_dev(local_login_t)

term_use_all_ttys(local_login_t)
term_use_unallocated_ttys(local_login_t)
term_relabel_unallocated_ttys(local_login_t)
term_relabel_all_ttys(local_login_t)
term_setattr_all_ttys(local_login_t)
term_setattr_unallocated_ttys(local_login_t)

auth_rw_login_records(local_login_t)
auth_rw_faillog(local_login_t)
auth_manage_pam_pid(local_login_t)
auth_manage_pam_console_data(local_login_t)
auth_domtrans_pam_console(local_login_t)

init_dontaudit_use_fds(local_login_t)

miscfiles_read_localization(local_login_t)

userdom_manage_all_users_keys(local_login_t)
userdom_spec_domtrans_all_users(local_login_t)
userdom_signal_all_users(local_login_t)
userdom_search_user_home_content(local_login_t)
userdom_use_unpriv_users_fds(local_login_t)
userdom_sigchld_all_users(local_login_t)
userdom_create_all_users_keys(local_login_t)

ifdef(`init_systemd',`
	auth_manage_faillog(local_login_t)

	init_dbus_chat(local_login_t)
	systemd_dbus_chat_logind(local_login_t)
	systemd_use_logind_fds(local_login_t)
	systemd_manage_logind_pid_pipes(local_login_t)
')

ifdef(`distro_debian',`
	auth_use_pam_motd_dynamic(local_login_t)
')

ifdef(`distro_ubuntu',`
	optional_policy(`
		unconfined_domain(local_login_t)
	')
')

tunable_policy(`console_login',`
	# Able to relabel /dev/console to user tty types.
	term_relabel_console(local_login_t)
')

tunable_policy(`use_nfs_home_dirs',`
	fs_read_nfs_files(local_login_t)
	fs_read_nfs_symlinks(local_login_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_read_cifs_files(local_login_t)
	fs_read_cifs_symlinks(local_login_t)
')

optional_policy(`
	alsa_domtrans(local_login_t)
')

optional_policy(`
	dbus_system_bus_client(local_login_t)

	optional_policy(`
		consolekit_dbus_chat(local_login_t)
	')
')

optional_policy(`
	gpm_getattr_gpmctl(local_login_t)
	gpm_setattr_gpmctl(local_login_t)
')

optional_policy(`
	# Search for mail spool file.
	mta_getattr_spool(local_login_t)
')

optional_policy(`
	nis_use_ypbind(local_login_t)
')

optional_policy(`
	nscd_use(local_login_t)
')

optional_policy(`
	systemd_dbus_chat_logind(local_login_t)
	systemd_write_inherited_logind_sessions_pipes(local_login_t)
')

optional_policy(`
	usermanage_read_crack_db(local_login_t)
')

optional_policy(`
	xserver_link_xdm_keys(local_login_t)
	xserver_read_xdm_tmp_files(local_login_t)
	xserver_rw_xdm_tmp_files(local_login_t)
	xserver_rw_xdm_keys(local_login_t)
')

#################################
#
# Sulogin local policy
#

allow sulogin_t self:capability { dac_read_search sys_admin sys_tty_config };
dontaudit sulogin_t self:capability dac_override;
allow sulogin_t self:process setexec;
allow sulogin_t self:fd use;
allow sulogin_t self:fifo_file rw_fifo_file_perms;
allow sulogin_t self:unix_dgram_socket create_socket_perms;
allow sulogin_t self:unix_stream_socket create_stream_socket_perms;
allow sulogin_t self:unix_dgram_socket sendto;
allow sulogin_t self:unix_stream_socket connectto;
allow sulogin_t self:shm create_shm_perms;
allow sulogin_t self:sem create_sem_perms;
allow sulogin_t self:msgq create_msgq_perms;
allow sulogin_t self:msg { send receive };

kernel_read_system_state(sulogin_t)
kernel_read_crypto_sysctls(sulogin_t)
kernel_stream_connect(sulogin_t)
kernel_use_fds(sulogin_t)
# because file systems are not mounted:
kernel_dontaudit_search_unlabeled(sulogin_t)

fs_search_auto_mountpoints(sulogin_t)
fs_rw_tmpfs_chr_files(sulogin_t)

files_read_etc_files(sulogin_t)

term_use_console(sulogin_t)
term_use_unallocated_ttys(sulogin_t)

auth_read_shadow(sulogin_t)

init_getpgid(sulogin_t)
init_getpgid_script(sulogin_t)

logging_send_syslog_msg(sulogin_t)

miscfiles_read_localization(sulogin_t)

seutil_read_config(sulogin_t)
seutil_read_default_contexts(sulogin_t)

userdom_use_unpriv_users_fds(sulogin_t)

userdom_search_user_home_dirs(sulogin_t)
userdom_use_user_ptys(sulogin_t)

sysadm_shell_domtrans(sulogin_t)

# by default, sulogin does not use pam...
# sulogin_pam might need to be defined otherwise
ifdef(`sulogin_pam', `
	selinux_get_fs_mount(sulogin_t)
	selinux_validate_context(sulogin_t)
	selinux_compute_access_vector(sulogin_t)
	selinux_compute_create_context(sulogin_t)
	selinux_compute_relabel_context(sulogin_t)
	selinux_compute_user_contexts(sulogin_t)
')

optional_policy(`
	nis_use_ypbind(sulogin_t)
')

optional_policy(`
	nscd_use(sulogin_t)
')