policy_module(authlogin, 2.2.0)

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

#

# Declarations

#

attribute can_read_shadow_passwords;

attribute can_write_shadow_passwords;

attribute can_relabelto_shadow_passwords;

attribute polydomain;

type auth_cache_t;

logging_log_file(auth_cache_t)

type chkpwd_t, can_read_shadow_passwords;

type chkpwd_exec_t;

typealias chkpwd_t alias { user_chkpwd_t staff_chkpwd_t sysadm_chkpwd_t };

typealias chkpwd_t alias { auditadm_chkpwd_t secadm_chkpwd_t };

application_domain(chkpwd_t, chkpwd_exec_t)

role system_r types chkpwd_t;

type faillog_t;

logging_log_file(faillog_t)

type lastlog_t;

logging_log_file(lastlog_t)

type login_exec_t;

application_executable_file(login_exec_t)

type pam_console_t;

type pam_console_exec_t;

init_system_domain(pam_console_t, pam_console_exec_t)

role system_r types pam_console_t;

type pam_t;

domain_type(pam_t)

role system_r types pam_t;

type pam_exec_t;

domain_entry_file(pam_t, pam_exec_t)

type pam_tmp_t;

files_tmp_file(pam_tmp_t)

type pam_var_console_t;

files_type(pam_var_console_t)

type pam_var_run_t;

files_pid_file(pam_var_run_t)

type shadow_t;

files_security_file(shadow_t)

neverallow ~can_read_shadow_passwords shadow_t:file read;

neverallow ~can_write_shadow_passwords shadow_t:file { create write };

neverallow ~can_relabelto_shadow_passwords shadow_t:file relabelto;

type updpwd_t;

type updpwd_exec_t;

domain_type(updpwd_t)

domain_entry_file(updpwd_t, updpwd_exec_t)

domain_obj_id_change_exemption(updpwd_t)

role system_r types updpwd_t;

type utempter_t;

type utempter_exec_t;

application_domain(utempter_t, utempter_exec_t)

#

# var_auth_t is the type of /var/lib/auth, usually

# used for auth data in pam_able

#

type var_auth_t;

files_type(var_auth_t)

type wtmp_t;

logging_log_file(wtmp_t)

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

#

# Check password local policy

#

allow chkpwd_t self:capability { dac_override setuid };

dontaudit chkpwd_t self:capability sys_tty_config;

allow chkpwd_t self:process { getattr signal };

allow chkpwd_t shadow_t:file read_file_perms;

files_list_etc(chkpwd_t)

# is_selinux_enabled

kernel_read_system_state(chkpwd_t)

domain_dontaudit_use_interactive_fds(chkpwd_t)

dev_read_rand(chkpwd_t)

dev_read_urand(chkpwd_t)

files_read_etc_files(chkpwd_t)

# for nscd

files_dontaudit_search_var(chkpwd_t)

fs_dontaudit_getattr_xattr_fs(chkpwd_t)

term_dontaudit_use_console(chkpwd_t)

term_dontaudit_use_unallocated_ttys(chkpwd_t)

term_dontaudit_use_generic_ptys(chkpwd_t)

term_dontaudit_use_all_ptys(chkpwd_t)

auth_use_nsswitch(chkpwd_t)

logging_send_audit_msgs(chkpwd_t)

logging_send_syslog_msg(chkpwd_t)

miscfiles_read_localization(chkpwd_t)

seutil_read_config(chkpwd_t)

seutil_dontaudit_use_newrole_fds(chkpwd_t)

userdom_use_user_terminals(chkpwd_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(chkpwd_t)

	')

')

optional_policy(`

	# apache leaks file descriptors

	apache_dontaudit_rw_tcp_sockets(chkpwd_t)

')

optional_policy(`

	kerberos_use(chkpwd_t)

')

optional_policy(`

	nis_authenticate(chkpwd_t)

')

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

#

# PAM local policy

#

allow pam_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };

dontaudit pam_t self:capability sys_tty_config;

allow pam_t self:fd use;

allow pam_t self:fifo_file rw_file_perms;

allow pam_t self:unix_dgram_socket create_socket_perms; 

allow pam_t self:unix_stream_socket rw_stream_socket_perms;

allow pam_t self:unix_dgram_socket sendto;

allow pam_t self:unix_stream_socket connectto;

allow pam_t self:shm create_shm_perms;

allow pam_t self:sem create_sem_perms;

allow pam_t self:msgq create_msgq_perms;

allow pam_t self:msg { send receive };

delete_files_pattern(pam_t, pam_var_run_t, pam_var_run_t)

read_files_pattern(pam_t, pam_var_run_t, pam_var_run_t)

files_list_pids(pam_t)

allow pam_t pam_tmp_t:dir manage_dir_perms;

allow pam_t pam_tmp_t:file manage_file_perms;

files_tmp_filetrans(pam_t, pam_tmp_t, { file dir })

auth_use_nsswitch(pam_t)

kernel_read_system_state(pam_t)

files_read_etc_files(pam_t)

fs_search_auto_mountpoints(pam_t)

miscfiles_read_localization(pam_t)

term_use_all_ttys(pam_t)

term_use_all_ptys(pam_t)

init_dontaudit_rw_utmp(pam_t)

logging_send_syslog_msg(pam_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(pam_t)

	')

')

optional_policy(`

	locallogin_use_fds(pam_t)

')

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

#

# PAM console local policy

#

allow pam_console_t self:capability { chown fowner fsetid };

dontaudit pam_console_t self:capability sys_tty_config;

allow pam_console_t self:process { sigchld sigkill sigstop signull signal };

# for /var/run/console.lock checking

read_files_pattern(pam_console_t, pam_var_console_t, pam_var_console_t)

read_lnk_files_pattern(pam_console_t, pam_var_console_t, pam_var_console_t)

dontaudit pam_console_t pam_var_console_t:file write;

kernel_read_kernel_sysctls(pam_console_t)

kernel_use_fds(pam_console_t)

# Read /proc/meminfo

kernel_read_system_state(pam_console_t)

dev_read_sysfs(pam_console_t)

dev_getattr_apm_bios_dev(pam_console_t)

dev_setattr_apm_bios_dev(pam_console_t)

dev_getattr_dri_dev(pam_console_t)

dev_setattr_dri_dev(pam_console_t)

dev_getattr_input_dev(pam_console_t)

dev_setattr_input_dev(pam_console_t)

dev_getattr_framebuffer_dev(pam_console_t)

dev_setattr_framebuffer_dev(pam_console_t)

dev_getattr_generic_usb_dev(pam_console_t)

dev_setattr_generic_usb_dev(pam_console_t)

dev_getattr_misc_dev(pam_console_t)

dev_setattr_misc_dev(pam_console_t)

dev_getattr_mouse_dev(pam_console_t)

dev_setattr_mouse_dev(pam_console_t)

dev_getattr_power_mgmt_dev(pam_console_t)

dev_setattr_power_mgmt_dev(pam_console_t)

dev_getattr_printer_dev(pam_console_t)

dev_setattr_printer_dev(pam_console_t)

dev_getattr_scanner_dev(pam_console_t)

dev_setattr_scanner_dev(pam_console_t)

dev_getattr_sound_dev(pam_console_t)

dev_setattr_sound_dev(pam_console_t)

dev_getattr_video_dev(pam_console_t)

dev_setattr_video_dev(pam_console_t)

dev_getattr_xserver_misc_dev(pam_console_t)

dev_setattr_xserver_misc_dev(pam_console_t)

dev_read_urand(pam_console_t)

files_read_etc_files(pam_console_t)

files_search_pids(pam_console_t)

files_list_mnt(pam_console_t)

files_dontaudit_search_isid_type_dirs(pam_console_t)

# read /etc/mtab

files_read_etc_runtime_files(pam_console_t)

fs_list_auto_mountpoints(pam_console_t)

fs_list_noxattr_fs(pam_console_t)

fs_getattr_all_fs(pam_console_t)

mls_file_read_all_levels(pam_console_t)

mls_file_write_all_levels(pam_console_t)

storage_getattr_fixed_disk_dev(pam_console_t)

storage_setattr_fixed_disk_dev(pam_console_t)

storage_getattr_removable_dev(pam_console_t)

storage_setattr_removable_dev(pam_console_t)

storage_getattr_scsi_generic_dev(pam_console_t)

storage_setattr_scsi_generic_dev(pam_console_t)

term_use_console(pam_console_t)

term_use_all_ttys(pam_console_t)

term_use_all_ptys(pam_console_t)

term_setattr_console(pam_console_t)

term_getattr_unallocated_ttys(pam_console_t)

term_setattr_unallocated_ttys(pam_console_t)

term_use_unallocated_ttys(pam_console_t)

auth_use_nsswitch(pam_console_t)

domain_use_interactive_fds(pam_console_t)

init_use_fds(pam_console_t)

init_use_script_ptys(pam_console_t)

logging_send_syslog_msg(pam_console_t)

miscfiles_read_localization(pam_console_t)

miscfiles_read_generic_certs(pam_console_t)

seutil_read_file_contexts(pam_console_t)

userdom_dontaudit_use_unpriv_user_fds(pam_console_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(pam_console_t)

	')

')

optional_policy(`

	gpm_getattr_gpmctl(pam_console_t)

	gpm_setattr_gpmctl(pam_console_t)

')

optional_policy(`

	hotplug_use_fds(pam_console_t)

	hotplug_dontaudit_search_config(pam_console_t)

')

optional_policy(`

	seutil_sigchld_newrole(pam_console_t)

')

optional_policy(`

	udev_read_db(pam_console_t)

')

optional_policy(`

	xserver_read_xdm_pid(pam_console_t)

	xserver_dontaudit_write_log(pam_console_t)

')

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

#

# updpwd local policy

#

allow updpwd_t self:capability { chown dac_override };

allow updpwd_t self:process setfscreate;

allow updpwd_t self:fifo_file rw_fifo_file_perms;

allow updpwd_t self:unix_stream_socket create_stream_socket_perms;

allow updpwd_t self:unix_dgram_socket create_socket_perms;

kernel_read_system_state(updpwd_t)

dev_read_urand(updpwd_t)

files_manage_etc_files(updpwd_t)

term_dontaudit_use_console(updpwd_t)

term_dontaudit_use_unallocated_ttys(updpwd_t)

auth_manage_shadow(updpwd_t)

auth_use_nsswitch(updpwd_t)

logging_send_syslog_msg(updpwd_t)

miscfiles_read_localization(updpwd_t)

userdom_use_user_terminals(updpwd_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(updpwd_t)

	')

')

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

#

# Utempter local policy

#

allow utempter_t self:capability setgid;

allow utempter_t self:unix_stream_socket create_stream_socket_perms;

allow utempter_t wtmp_t:file rw_file_perms;

dev_read_urand(utempter_t)

files_read_etc_files(utempter_t)

term_getattr_all_ttys(utempter_t)

term_getattr_all_ptys(utempter_t)

term_dontaudit_use_all_ttys(utempter_t)

term_dontaudit_use_all_ptys(utempter_t)

term_dontaudit_use_ptmx(utempter_t)

init_rw_utmp(utempter_t)

domain_use_interactive_fds(utempter_t)

logging_search_logs(utempter_t)

userdom_use_user_terminals(utempter_t)

# Allow utemper to write to /tmp/.xses-*

userdom_write_user_tmp_files(utempter_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(utempter_t)

	')

')

optional_policy(`

	nscd_socket_use(utempter_t)

')

optional_policy(`

	xserver_use_xdm_fds(utempter_t)

	xserver_rw_xdm_pipes(utempter_t)

')

tunable_policy(`allow_polyinstantiation',`

	files_polyinstantiate_all(polydomain)

	userdom_manage_user_home_content_dirs(polydomain)

	userdom_manage_user_home_content_files(polydomain)

	userdom_relabelto_user_home_dirs(polydomain)

	userdom_relabelto_user_home_files(polydomain)

')