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

# Copyright (C) 2005 Tresys Technology, LLC
## <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)

filesystem_ignore_get_persistent_filesystem_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;

# 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_network_udp_on_all_interfaces($1_chkpwd_t)
corenetwork_network_raw_on_all_interfaces($1_chkpwd_t)
corenetwork_network_udp_on_all_nodes($1_chkpwd_t)
corenetwork_network_raw_on_all_nodes($1_chkpwd_t)
corenetwork_bind_udp_on_all_nodes($1_chkpwd_t)
corenetwork_network_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 };
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 };
')

#######################################
#
# 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;
domain_make_entrypoint_file_depend
')

########################################
## <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 };
')

define(`authlogin_login_program_transition_depend',`
type login_exec_t;
class file { getattr read execute };
class process { transition noatsecure siginh rlimitinh };
')

#######################################
#
# authlogin_check_password_transition(domain)
#
define(`authlogin_check_password_transition',`
requires_block_template(`$0'_depend)
allow $1 chkpwd_exec_t:file { getattr read execute };
allow $1 system_chkpwd_t:process transition;
type_transition $1 chkpwd_exec_t:process system_chkpwd_t;

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_network_udp_on_all_interfaces($1)
corenetwork_network_raw_on_all_interfaces($1)
corenetwork_network_udp_on_all_nodes($1)
corenetwork_network_raw_on_all_nodes($1)
corenetwork_bind_udp_on_all_nodes($1)
corenetwork_network_udp_on_dns_port($1)
sysnetwork_read_network_config($1)
') dnl end use_dns

') dnl end check_password_transition

define(`authlogin_check_password_transition_depend',`
type system_chkpwd_t, chkpwd_exec_t, shadow_t;
class file { getattr read execute };
class process transition;
class udp_socket { create ioctl read getattr write setattr append bind getopt setopt shutdown connect };
')

#######################################
#
# 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 { getattr read write };
typeattribute $1 can_read_shadow_passwords;
typeattribute $1 can_write_shadow_passwords;
')

define(`authlogin_modify_shadow_passwords_depend',`
attribute can_read_shadow_passwords;
attribute can_write_shadow_passwords;
type shadow_t;
class file { getattr read write };
')

#######################################
#
# authlogin_manage_shadow_passwords(domain)
#
define(`authlogin_manage_shadow_passwords',`
requires_block_template(`$0'_depend)
files_create_private_config($1,shadow_t,file)
allow $1 shadow_t:file { create ioctl read getattr lock write setattr append link unlink rename };
typeattribute $1 can_read_shadow_passwords;
typeattribute $1 can_write_shadow_passwords;
')

define(`authlogin_manage_shadow_passwords_depend',`
attribute can_read_shadow_passwords;
attribute can_write_shadow_passwords;
type shadow_t;
class file { create ioctl read getattr lock write setattr append link unlink rename };
')

#######################################
#
# 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_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 };
')

define(`authlogin_pam_transition_depend',`
type pam_t, pam_exec_t;
class file { getattr read execute };
class process { transition noatsecure siginh rlimitinh };
')

########################################
## <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 };
')

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 };
')

#######################################
#
# 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 { getattr search read };
allow $1 pam_var_console_t:file { getattr read };
')

define(`authlogin_pam_console_read_runtime_data_depend',`
type pam_var_console_t;
class dir { getattr search read };
class file { getattr read };
')

#######################################
#
# 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 };
')

define(`authlogin_utempter_transition_depend',`
type utempter_t, utempter_exec_t;
class file { getattr read execute };
class process { transition noatsecure siginh rlimitinh };
')

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

define(`authlogin_modify_login_records_depend',`
type wtmp_t;
class file { getattr read write setattr };
')

## </module>