selinux-policy/refpolicy/policy/modules/system/authlogin.if

## <module name="authlogin" layer="system">
## <summary>Common policy for authentication and user login.</summary>

#######################################
#
# Per user domain template for this module
#
# authlogin_per_userdomain_template(userdomain_prefix)
#
define(`authlogin_per_userdomain_template',`
	requires_block_template(`$0'_depend)

	type $1_chkpwd_t, can_read_shadow_passwords; # , nscd_client_domain;
	domain_make_domain($1_chkpwd_t)
	domain_make_entrypoint_file($1_chkpwd_t,chkpwd_exec_t)
	role $1_r types $1_chkpwd_t;
	role $1_r types system_chkpwd_t;

	allow $1_chkpwd_t self:capability setuid;
	allow $1_chkpwd_t self:process getattr;

	files_read_general_system_config_directory($1_chkpwd_t)
	allow $1_chkpwd_t shadow_t:file { getattr read };

	# is_selinux_enabled
	kernel_read_system_state($1_chkpwd_t)

	fs_ignore_get_persistent_fs_attributes($1_chkpwd_t)

	domain_use_widely_inheritable_file_descriptors($1_chkpwd_t)

	libraries_use_dynamic_loader($1_chkpwd_t)
	libraries_use_shared_libraries($1_chkpwd_t)

	files_read_general_system_config($1_chkpwd_t)
	# for nscd
	files_ignore_search_system_state_data_directory($1_chkpwd_t)

	logging_send_system_log_message($1_chkpwd_t)

	miscfiles_read_localization($1_chkpwd_t)

	selinux_read_config($1_chkpwd_t)

	#can_ypbind($1_chkpwd_t)
	#can_kerberos($1_chkpwd_t)
	#can_ldap($1_chkpwd_t)

	# Transition from the user domain to this domain.
	allow $1_t chkpwd_exec_t:file { getattr read execute };
	allow $1_t $1_chkpwd_t:process transition;
	type_transition $1_t chkpwd_exec_t:process $1_chkpwd_t;
	dontaudit $1_t $1_chkpwd_t:process { noatsecure siginh rlimitinh };

	allow $1_chkpwd_t $1_t:fd use;
	allow $1_t $1_chkpwd_t:fd use;
	allow $1_chkpwd_t $1_t:fifo_file rw_file_perms;
	allow $1_chkpwd_t $1_t:process sigchld;

	# Write to the user domain tty.
	#userdomain_use_$1_terminal($1_chkpwd_t)
	#userdomain_use_$1_pty($1_chkpwd_t)

	# Inherit and use descriptors from gnome-pty-helper.
	#ifdef(`gnome-pty-helper.te',`allow $1_chkpwd_t $1_gph_t:fd use;')

	tunable_policy(`use_dns',`
		allow $1_chkpwd_t self:udp_socket { create ioctl read getattr write setattr append bind getopt setopt shutdown connect };
		corenetwork_sendrecv_udp_on_all_interfaces($1_chkpwd_t)
		corenetwork_sendrecv_raw_on_all_interfaces($1_chkpwd_t)
		corenetwork_sendrecv_udp_on_all_nodes($1_chkpwd_t)
		corenetwork_sendrecv_raw_on_all_nodes($1_chkpwd_t)
		corenetwork_bind_udp_on_all_nodes($1_chkpwd_t)
		corenetwork_sendrecv_udp_on_dns_port($1_chkpwd_t)
		sysnetwork_read_network_config($1_chkpwd_t)
	')

	optional_policy(`selinux.te',`
		selinux_newrole_use_file_descriptors($1_chkpwd_t)
	')

') dnl end authlogin_per_userdomain_template

define(`authlogin_per_userdomain_template_depend',`
	attribute can_read_shadow_passwords;

	type chkpwd_exec_t, system_chkpwd_t, shadow_t;

	class file { getattr read execute };
	class process { getattr transition sigchld };
	class capability setuid;
	class unix_stream_socket { create read getattr write setattr append bind connect getopt setopt shutdown };
	class unix_dgram_socket { create read getattr write setattr append bind connect getopt setopt shutdown };
	class fd use;
	class fifo_file rw_file_perms;
')

#######################################
#
# authlogin_make_login_program_entrypoint(domain)
#
define(`authlogin_make_login_program_entrypoint',`
	requires_block_template(`$0'_depend)

	domain_make_entrypoint_file($1,login_exec_t)
')

define(`authlogin_make_login_program_entrypoint_depend',`
	type login_exec_t;
')

########################################
## <interface name="authlogin_login_program_transition">
##	<description>
##		Execute a login_program in the target domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="target_domain">
##		The type of the login_program process.
##	</parameter>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`authlogin_login_program_transition',`
	requires_block_template(`$0'_depend)

	# FIXME: search bin_t
	allow $1 login_exec_t:file { getattr read execute };
	allow $1 $2:process transition;
	type_transition $1 login_exec_t:process $2;
	dontaudit $1 $2:process { noatsecure siginh rlimitinh };

	allow $1 $2:fd use;
	allow $2 $1:fd use;
	allow $2 $1:fifo_file rw_file_perms;
	allow $2 $1:process sigchld;
')

define(`authlogin_login_program_transition_depend',`
	type login_exec_t;

	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

#######################################
#
# authlogin_check_password_transition(domain)
#
define(`authlogin_check_password_transition',`
	requires_block_template(`$0'_depend)

	domain_auto_trans($1,chkpwd_exec_t,system_chkpwd_t)

	allow $1 system_chkpwd_t:fd use;
	allow system_chkpwd_t $1:fd use;
	allow system_chkpwd_t $1:fifo_file rw_file_perms;
	allow system_chkpwd_t $1:process sigchld;

	dontaudit $1 shadow_t:file { getattr read };
	#allow $1_t sbin_t:dir search;
	#can_ypbind($1_t)
	#can_kerberos($1_t)
	#can_ldap($1_t)

	tunable_policy(`use_dns',`
		allow $1 self:udp_socket { create ioctl read getattr write setattr append bind getopt setopt shutdown connect };
		corenetwork_sendrecv_udp_on_all_interfaces($1)
		corenetwork_sendrecv_raw_on_all_interfaces($1)
		corenetwork_sendrecv_udp_on_all_nodes($1)
		corenetwork_sendrecv_raw_on_all_nodes($1)
		corenetwork_bind_udp_on_all_nodes($1)
		corenetwork_sendrecv_udp_on_dns_port($1)
		sysnetwork_read_network_config($1)
	')
')

define(`authlogin_check_password_transition_depend',`
	type system_chkpwd_t, chkpwd_exec_t, shadow_t;

	class file { getattr read execute };
	class process { transition sigchld };
	class udp_socket { create ioctl read getattr write setattr append bind getopt setopt shutdown connect };
	class fd use;
	class fifo_file rw_file_perms;
')

#######################################
#
# authlogin_ignore_get_shadow_passwords_attributes(domain)
#
define(`authlogin_ignore_get_shadow_passwords_attributes',`
	requires_block_template(`$0'_depend)

	dontaudit $1 shadow_t:file getattr;
')

define(`authlogin_ignore_get_shadow_passwords_attributes_depend',`
	type shadow_t;

	class file getattr;
')

#######################################
#
# authlogin_read_shadow_passwords(domain)
#
define(`authlogin_read_shadow_passwords',`
	requires_block_template(`$0'_depend)

	files_read_general_system_config_directory($1)
	allow $1 shadow_t:file { getattr read };
	typeattribute $1 can_read_shadow_passwords;
')

define(`authlogin_read_shadow_passwords_depend',`
	attribute can_read_shadow_passwords;

	type shadow_t;

	class file { getattr read };
')

#######################################
#
# authlogin_ignore_read_shadow_passwords(domain)
#
define(`authlogin_ignore_read_shadow_passwords',`
	requires_block_template(`$0'_depend)

	dontaudit $1 shadow_t:file { getattr read };
')

define(`authlogin_ignore_read_shadow_passwords_depend',`
	type shadow_t;

	class file { getattr read };
')

#######################################
#
# authlogin_modify_shadow_passwords(domain)
#
define(`authlogin_modify_shadow_passwords',`
	requires_block_template(`$0'_depend)

	files_read_general_system_config_directory($1)
	allow $1 shadow_t:file rw_file_perms;
	typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
')

define(`authlogin_modify_shadow_passwords_depend',`
	attribute can_read_shadow_passwords, can_write_shadow_passwords;

	type shadow_t;
	class file rw_file_perms;
')

#######################################
#
# authlogin_manage_shadow_passwords(domain)
#
define(`authlogin_manage_shadow_passwords',`
	requires_block_template(`$0'_depend)

	allow $1 shadow_t:file create_file_perms;
	files_create_private_config($1,shadow_t,file)

	typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;
')

define(`authlogin_manage_shadow_passwords_depend',`
	attribute can_read_shadow_passwords, can_write_shadow_passwords;

	type shadow_t;

	class file create_file_perms;
')

#######################################
#
# authlogin_relabel_to_shadow_passwords(domain)
#
define(`authlogin_relabel_to_shadow_passwords',`
	requires_block_template(`$0'_depend)

	files_search_general_system_config_directory($1)
	allow $1 shadow_t:file relabelto;
	typeattribute $1 can_relabelto_shadow_passwords;
')

define(`authlogin_relabel_to_shadow_passwords_depend',`
	attribute can_relabelto_shadow_passwords;

	type shadow_t;

	class file relabelto;
')

#######################################
#
# authlogin_modify_login_failure_records(domain)
#
define(`authlogin_modify_login_failure_records',`
	requires_block_template(`$0'_depend)

	allow $1 faillog_t:file rw_file_perms;
	logging_search_system_log_directory($1)
')

define(`authlogin_modify_login_failure_records_depend',`
	type faillog_t;

	class file rw_file_perms;
')

#######################################
#
# authlogin_modify_last_login_log(domain)
#
define(`authlogin_modify_last_login_log',`
	requires_block_template(`$0'_depend)

	logging_search_system_log_directory($1)
	allow $1 lastlog_t:file { getattr read write setattr };
')

define(`authlogin_modify_last_login_log_depend',`
	type lastlog_t;

	class file { getattr read write setattr };
')

########################################
## <interface name="authlogin_pam_transition">
##	<description>
##		Execute pam programs in the pam domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`authlogin_pam_transition',`
	requires_block_template(`$0'_depend)

	allow $1 pam_exec_t:file { getattr read execute };
	allow $1 pam_t:process transition;
	type_transition $1 pam_exec_t:process pam_t;
	dontaudit $1 pam_t:process { noatsecure siginh rlimitinh };

	allow $1 pam_t:fd use;
	allow pam_t $1:fd use;
	allow pam_t $1:fifo_file rw_file_perms;
	allow pam_t $1:process sigchld;
')

define(`authlogin_pam_transition_depend',`
	type pam_t, pam_exec_t;

	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd
	class fifo_file rw_file_perms;
')

########################################
## <interface name="authlogin_pam_transition_add_role_use_terminal">
##	<description>
##		Execute pam programs in the PAM domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="role">
##		The role to allow the PAM domain.
##	</parameter>
##	<parameter name="terminal">
##		The type of the terminal allow the PAM domain to use.
##	</parameter>
##	<infoflow type="both" weight="10"/>
## </interface>
#
define(`authlogin_pam_transition_add_role_use_terminal',`
	requires_block_template(`$0'_depend)

	authlogin_pam_transition($1)
	role $2 types pam_t;
	allow pam_t $3:chr_file { getattr read write ioctl };
')

define(`authlogin_pam_transition_add_role_use_terminal_depend',`
	type pam_t;

	class chr_file { getattr read write ioctl };
')

#######################################
#
# authlogin_pam_execute(domain)
#
define(`authlogin_pam_execute',`
	requires_block_template(`$0'_depend)

	allow $1 pam_exec_t:file { getattr read execute execute_no_trans };
')

define(`authlogin_pam_execute_depend',`
	type pam_exec_t;

	class file { getattr read execute execute_no_trans };
')

#######################################
#
# authlogin_pam_read_runtime_data(domain)
#
define(`authlogin_pam_read_runtime_data',`
	requires_block_template(`$0'_depend)

	files_search_system_state_data_directory($1)
	files_search_runtime_data_directory($1)
	allow $1 pam_var_run_t:dir { getattr search read };
	allow $1 pam_var_run_t:file { getattr read };
')

define(`authlogin_pam_read_runtime_data_depend',`
	type pam_var_run_t;

	class dir { getattr search read };
	class file { getattr read };
')

#######################################
#
# authlogin_pam_remove_runtime_data(domain)
#
define(`authlogin_pam_remove_runtime_data',`
	requires_block_template(`$0'_depend)

	files_search_system_state_data_directory($1)
	files_search_runtime_data_directory($1)
	allow $1 pam_var_run_t:dir { getattr search read write remove_name };
	allow $1 pam_var_run_t:file { getattr unlink };
')

define(`authlogin_pam_remove_runtime_data_depend',`
	type pam_var_run_t;

	class dir { getattr search read write remove_name };
	class file { getattr unlink };
')

#######################################
#
# authlogin_pam_console_transition(domain)
#
define(`authlogin_pam_console_transition',`
	requires_block_template(`$0'_depend)

	allow $1 pam_console_exec_t:file { getattr read execute };
	allow $1 pam_console_t:process transition;
	type_transition $1 pam_console_exec_t:process pam_console_t;
	dontaudit $1 pam_console_t:process { noatsecure siginh rlimitinh };

	allow $1 pam_console_t:fd use;
	allow pam_console_t $1:fd use;
	allow pam_console_t $1:fifo_file rw_file_perms;
	allow pam_console_t $1:process sigchld;
')

define(`authlogin_pam_console_transition_depend',`
	type pam_console_t, pam_console_exec_t;

	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

#######################################
#
# authlogin_pam_console_read_runtime_data_dir(domain)
#
define(`authlogin_pam_console_read_runtime_data_dir',`
	requires_block_template(`$0'_depend)

	files_search_system_state_data_directory($1)
	files_search_runtime_data_directory($1)
	allow $1 pam_var_console_t:dir r_dir_perms;
')

define(`authlogin_pam_console_read_runtime_data_dir_depend',`
	type pam_var_console_t;

	class dir r_dir_perms;
')

#######################################
#
# authlogin_pam_console_read_runtime_data(domain)
#
define(`authlogin_pam_console_read_runtime_data',`
	requires_block_template(`$0'_depend)

	files_search_system_state_data_directory($1)
	files_search_runtime_data_directory($1)
	allow $1 pam_var_console_t:dir r_dir_perms;
	allow $1 pam_var_console_t:file r_file_perms;
')

define(`authlogin_pam_console_read_runtime_data_depend',`
	type pam_var_console_t;

	class dir r_dir_perms;
	class file r_file_perms;
')

#######################################
#
# authlogin_pam_console_manage_runtime_data(domain)
#
define(`authlogin_pam_console_manage_runtime_data',`
	requires_block_template(`$0'_depend)

	files_search_system_state_data_directory($1)
	files_search_runtime_data_directory($1)
	allow $1 pam_var_console_t:dir { read getattr lock search ioctl add_name remove_name write };
	allow $1 pam_var_console_t:file { create ioctl read getattr lock write setattr append link unlink rename };
	allow $1 pam_var_console_t:lnk_file { create read getattr setattr link unlink rename };
')

define(`authlogin_pam_console_manage_runtime_data_depend',`
	type pam_var_console_t;

	class dir { read getattr lock search ioctl add_name remove_name write };
	class file { create ioctl read getattr lock write setattr append link unlink rename };
	class lnk_file { create read getattr setattr link unlink rename };
')

########################################
## <interface name="authlogin_relabel_all_files_except_shadow">
##	<description>
##		Relabel all files on the filesystem, except
##		the shadow passwords and listed exceptions.
##	</description>
##	<parameter name="domain">
##		The type of the domain perfoming this action.
##	</parameter>
##	<parameter name="exception_types" optional="true">
##		The types to be excluded.  Each type or attribute
##		must be negated by the caller.
##	</parameter>
##	<infoflow type="both" weight="10"/>
## </interface>
#

define(`authlogin_relabel_all_files_except_shadow',`
	requires_block_template(`$0'_depend)

	files_relabel_all_files($1,$2 -shadow_t)
')

define(`authlogin_relabel_all_files_except_shadow_depend',`
	type shadow_t;
')

########################################
## <interface name="authlogin_manage_all_files_except_shadow">
##	<description>
##		Manage all files on the filesystem, except
##		the shadow passwords and listed exceptions.
##	</description>
##	<parameter name="domain">
##		The type of the domain perfoming this action.
##	</parameter>
##	<parameter name="exception_types" optional="true">
##		The types to be excluded.  Each type or attribute
##		must be negated by the caller.
##	</parameter>
##	<infoflow type="both" weight="10"/>
## </interface>
#

define(`authlogin_manage_all_files_except_shadow',`
	requires_block_template(`$0'_depend)

	files_manage_all_files($1,$2 -shadow_t)
')

define(`authlogin_manage_all_files_except_shadow_depend',`
	type shadow_t;
')

########################################
## <interface name="authlogin_utempter_transition">
##	<description>
##		Execute utempter programs in the utempter domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`authlogin_utempter_transition',`
	requires_block_template(`$0'_depend)

	allow $1 utempter_exec_t:file { getattr read execute };
	allow $1 utempter_t:process transition;
	type_transition $1 utempter_exec_t:process utempter_t;
	dontaudit $1 utempter_t:process { noatsecure siginh rlimitinh };

	allow $1 utempter_t:fd use;
	allow utempter_t $1:fd use;
	allow utempter_t $1:fifo_file rw_file_perms;
	allow utempter_t $1:process sigchld;
')

define(`authlogin_utempter_transition_depend',`
	type utempter_t, utempter_exec_t;

	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

########################################
## <interface name="authlogin_utempter_transition_add_role_use_terminal">
##	<description>
##		Execute utempter programs in the utempter domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="role">
##		The role to allow the utempter domain.
##	</parameter>
##	<parameter name="terminal">
##		The type of the terminal allow the utempter domain to use.
##	</parameter>
##	<infoflow type="both" weight="10"/>
## </interface>
#
define(`authlogin_utempter_transition_add_role_use_terminal',`
	requires_block_template(`$0'_depend)

	authlogin_utempter_transition($1)
	role $2 types utempter_t;
	allow utempter_t $3:chr_file { getattr read write ioctl };
')

define(`authlogin_utempter_transition_add_role_use_terminal_depend',`
	type utempter_t;

	class chr_file { getattr read write ioctl };
')

#######################################
#
# authlogin_read_login_records(domain)
#
define(`authlogin_read_login_records',`
	requires_block_template(`$0'_depend)

	logging_search_system_log_directory($1)
	allow $1 wtmp_t:file { getattr read };
')

define(`authlogin_read_login_records_depend',`
	type wtmp_t;

	class file { getattr read };
')

#######################################
#
# authlogin_ignore_write_login_records(domain)
#
define(`authlogin_ignore_write_login_records',`
	requires_block_template(`$0'_depend)

	dontaudit $1 wtmp_t:file write;
')

define(`authlogin_read_login_records_depend',`
	type wtmp_t;

	class file write;
')

#######################################
#
# authlogin_modify_login_records(domain)
#
define(`authlogin_modify_login_records',`
	requires_block_template(`$0'_depend)

	allow $1 wtmp_t:file rw_file_perms;
	logging_search_system_log_directory($1)
')

define(`authlogin_modify_login_records_depend',`
type wtmp_t;
class file rw_file_perms;
')

## </module>