## <summary>Common policy for authentication and user login.</summary>

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

## <summary>

##	The per user domain template for the authlogin module.

## </summary>

## <desc>

##	

##	This template creates a derived domain which is allowed

##	to authenticate users by using PAM unix_chkpwd support.

##	This domain will be used by any programs running in the

##	user domain which use PAM to authenticate.

##	

##	

##	This template is invoked automatically for each user, and

##	generally does not need to be invoked directly

##	by policy writers.

##	

## </desc>

## <param name="userdomain_prefix">

##	The prefix of the user domain (e.g., user

##	is the prefix for user_t).

## </param>

## <param name="user_domain">

##	The type of the user domain.

## </param>

## <param name="user_role">

##	The role associated with the user domain.

## </param>

#

template(`authlogin_per_userdomain_template',`

	gen_require(`

		attribute can_read_shadow_passwords;

		type chkpwd_exec_t, system_chkpwd_t, shadow_t;

		class file rx_file_perms;

		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;

	')

	type $1_chkpwd_t, can_read_shadow_passwords;

	domain_type($1_chkpwd_t)

	domain_entry_file($1_chkpwd_t,chkpwd_exec_t)

	role $3 types $1_chkpwd_t;

	role $3 types system_chkpwd_t;

	allow $1_chkpwd_t self:capability setuid;

	allow $1_chkpwd_t self:process getattr;

	files_list_etc($1_chkpwd_t)

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

	# Transition from the user domain to this domain.

	domain_auto_trans($2,chkpwd_exec_t,$1_chkpwd_t)

	allow $1_chkpwd_t $2:fd use;

	allow $2 $1_chkpwd_t:fd use;

	allow $1_chkpwd_t $2:fifo_file rw_file_perms;

	allow $1_chkpwd_t $2:process sigchld;

	# is_selinux_enabled

	kernel_read_system_state($1_chkpwd_t)

	fs_dontaudit_getattr_xattr_fs($1_chkpwd_t)

	domain_use_wide_inherit_fd($1_chkpwd_t)

	libs_use_ld_so($1_chkpwd_t)

	libs_use_shared_libs($1_chkpwd_t)

	files_read_etc_files($1_chkpwd_t)

	# for nscd

	files_dontaudit_search_var($1_chkpwd_t)

	logging_send_syslog_msg($1_chkpwd_t)

	miscfiles_read_localization($1_chkpwd_t)

	seutil_read_config($1_chkpwd_t)

	sysnet_dns_name_resolve($1_chkpwd_t)

	# Write to the user domain tty.

	userdom_use_user_terminals($1,$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;')

	optional_policy(`kerberos.te',`

		kerberos_use($1_chkpwd_t)

	')

	optional_policy(`ldap.te',`

		allow $1_chkpwd_t self:tcp_socket create_socket_perms;

		corenet_tcp_sendrecv_all_if($1_chkpwd_t)

		corenet_raw_sendrecv_all_if($1_chkpwd_t)

		corenet_tcp_sendrecv_all_nodes($1_chkpwd_t)

		corenet_raw_sendrecv_all_nodes($1_chkpwd_t)

		corenet_tcp_sendrecv_ldap_port($1_chkpwd_t)

		corenet_tcp_bind_all_nodes($1_chkpwd_t)

		sysnet_read_config($1_chkpwd_t)

	')

	optional_policy(`nis.te',`

		nis_use_ypbind($1_chkpwd_t)

	')

	optional_policy(`nscd.te',`

		nscd_use_socket($1_chkpwd_t)

	')

	optional_policy(`selinuxutil.te',`

		seutil_use_newrole_fd($1_chkpwd_t)

	')

')

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

## <summary>

##	Run unix_chkpwd to check a password

##	for a user domain.

## </summary>

## <desc>

##	

##	Run unix_chkpwd to check a password

##	for a user domain.

##	

##	

##	This is a templated interface, and should only

##	be called from a per-userdomain template.

##	

## </desc>

## <param name="userdomain_prefix">

##	The prefix of the user domain (e.g., user

##	is the prefix for user_t).

## </param>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

template(`auth_domtrans_user_chk_passwd',`

	gen_require(`

		type chkpwd_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	corecmd_search_bin($1)

	domain_auto_trans($1,chkpwd_exec_t,$2_chkpwd_t)

	allow $1 $2_chkpwd_t:fd use;

	allow $2_chkpwd_t $1:fd use;

	allow $2_chkpwd_t $1:fifo_file rw_file_perms;

	allow $2_chkpwd_t $1:process sigchld;

')

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

## <summary>

##	Use the login program as an entry point program.

## </summary>

## <param name="domain">

##	The type of process using the login program as entry point.

## </param>

#

interface(`auth_login_entry_type',`

	gen_require(`

		type login_exec_t;

	')

	domain_entry_file($1,login_exec_t)

')

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

## <summary>

##	Execute a login_program in the target domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

## <param name="target_domain">

##	The type of the login_program process.

## </param>

#

interface(`auth_domtrans_login_program',`

	gen_require(`

		type login_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	corecmd_search_bin($1)

	domain_auto_trans($1,login_exec_t,$2)

	allow $1 $2:fd use;

	allow $2 $1:fd use;

	allow $2 $1:fifo_file rw_file_perms;

	allow $2 $1:process sigchld;

')

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

## <summary>

##	Run unix_chkpwd to check a password.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_domtrans_chk_passwd',`

	gen_require(`

		type system_chkpwd_t, chkpwd_exec_t, shadow_t;

		class process sigchld;

		class udp_socket create_socket_perms;

		class fd use;

		class fifo_file rw_file_perms;

	')

	corecmd_search_sbin($1)

	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 };

	sysnet_dns_name_resolve($1)

	optional_policy(`kerberos.te',`

		kerberos_use($1)

	')

	optional_policy(`ldap.te',`

		allow $1 self:tcp_socket create_socket_perms;

		corenet_tcp_sendrecv_all_if($1)

		corenet_raw_sendrecv_all_if($1)

		corenet_tcp_sendrecv_all_nodes($1)

		corenet_raw_sendrecv_all_nodes($1)

		corenet_tcp_sendrecv_ldap_port($1)

		corenet_tcp_bind_all_nodes($1)

		sysnet_read_config($1)

	')

	optional_policy(`nis.te',`

		nis_use_ypbind($1)

	')

')

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

## <summary>

##	Get the attributes of the shadow passwords file.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_getattr_shadow',`

	gen_require(`

		type shadow_t;

		class file getattr;

	')

	files_search_etc($1)

	allow $1 shadow_t:file getattr;

')

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

## <summary>

##	Do not audit attempts to get the attributes

##	of the shadow passwords file.

## </summary>

## <param name="domain">

##	Domain to not audit.

## </param>

#

interface(`auth_dontaudit_getattr_shadow',`

	gen_require(`

		type shadow_t;

		class file getattr;

	')

	dontaudit $1 shadow_t:file getattr;

')

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

## <summary>

##	Read the shadow passwords file (/etc/shadow)

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_read_shadow',`

	gen_require(`

		attribute can_read_shadow_passwords;

		type shadow_t;

		class file r_file_perms;

	')

	files_list_etc($1)

	allow $1 shadow_t:file r_file_perms;

	typeattribute $1 can_read_shadow_passwords;

')

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

## <summary>

##	Do not audit attempts to read the shadow

##	password file (/etc/shadow).

## </summary>

## <param name="domain">

##	The type of the domain to not audit.

## </param>

#

interface(`auth_dontaudit_read_shadow',`

	gen_require(`

		type shadow_t;

		class file r_file_perms;

	')

	dontaudit $1 shadow_t:file { getattr read };

')

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

## <summary>

##	Read and write the shadow password file (/etc/shadow).

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_rw_shadow',`

	gen_require(`

		attribute can_read_shadow_passwords, can_write_shadow_passwords;

		type shadow_t;

		class file rw_file_perms;

	')

	files_list_etc($1)

	allow $1 shadow_t:file rw_file_perms;

	typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;

')

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

#

# auth_manage_shadow(domain)

#

interface(`auth_manage_shadow',`

	gen_require(`

		attribute can_read_shadow_passwords, can_write_shadow_passwords;

		type shadow_t;

		class file create_file_perms;

	')

	allow $1 shadow_t:file create_file_perms;

	files_create_etc_config($1,shadow_t,file)

	typeattribute $1 can_read_shadow_passwords, can_write_shadow_passwords;

')

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

#

# auth_relabelto_shadow(domain)

#

interface(`auth_relabelto_shadow',`

	gen_require(`

		attribute can_relabelto_shadow_passwords;

		type shadow_t;

		class file relabelto;

	')

	files_search_etc($1)

	allow $1 shadow_t:file relabelto;

	typeattribute $1 can_relabelto_shadow_passwords;

')

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

#

# auth_rw_faillog(domain)

#

interface(`auth_rw_faillog',`

	gen_require(`

		type faillog_t;

		class file rw_file_perms;

	')

	logging_search_logs($1)

	allow $1 faillog_t:file rw_file_perms;

')

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

#

# auth_rw_lastlog(domain)

#

interface(`auth_rw_lastlog',`

	gen_require(`

		type lastlog_t;

		class file { getattr read write setattr };

	')

	logging_search_logs($1)

	allow $1 lastlog_t:file { getattr read write setattr };

')

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

## <summary>

##	Execute pam programs in the pam domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_domtrans_pam',`

	gen_require(`

		type pam_t, pam_exec_t;

		class process sigchld;

		class fd

		class fifo_file rw_file_perms;

	')

	domain_auto_trans($1,pam_exec_t,pam_t)

	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;

')

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

## <summary>

##	Execute pam programs in the PAM domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

## <param name="role">

##	The role to allow the PAM domain.

## </param>

## <param name="terminal">

##	The type of the terminal allow the PAM domain to use.

## </param>

#

interface(`auth_run_pam',`

	gen_require(`

		type pam_t;

		class chr_file rw_file_perms;

	')

	auth_domtrans_pam($1)

	role $2 types pam_t;

	allow pam_t $3:chr_file rw_file_perms;

')

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

## <summary>

##	Execute the pam program.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_exec_pam',`

	gen_require(`

		type pam_exec_t;

	')

	can_exec($1,pam_exec_t)

')

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

#

# auth_read_pam_pid(domain)

#

interface(`auth_read_pam_pid',`

	gen_require(`

		type pam_var_run_t;

		class dir r_dir_perms;

		class file r_file_perms;

	')

	files_search_var($1)

	files_search_pids($1)

	allow $1 pam_var_run_t:dir r_dir_perms;

	allow $1 pam_var_run_t:file r_file_perms;

')

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

## <summary>

##	Delete pam PID files.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_delete_pam_pid',`

	gen_require(`

		type pam_var_run_t;

		class dir { getattr search read write remove_name };

		class file { getattr unlink };

	')

	files_search_var($1)

	files_search_pids($1)

	allow $1 pam_var_run_t:dir { getattr search read write remove_name };

	allow $1 pam_var_run_t:file { getattr unlink };

')

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

#

# auth_domtrans_pam_console(domain)

#

interface(`auth_domtrans_pam_console',`

	gen_require(`

		type pam_console_t, pam_console_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	domain_auto_trans($1,pam_console_exec_t,pam_console_t)

	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;

')

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

#

# auth_list_pam_console_data(domain)

#

interface(`auth_list_pam_console_data',`

	gen_require(`

		type pam_var_console_t;

		class dir r_dir_perms;

	')

	files_search_var($1)

	files_search_pids($1)

	allow $1 pam_var_console_t:dir r_dir_perms;

')

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

#

# auth_read_pam_console_data(domain)

#

interface(`auth_read_pam_console_data',`

	gen_require(`

		type pam_var_console_t;

		class dir r_dir_perms;

		class file r_file_perms;

	')

	files_search_var($1)

	files_search_pids($1)

	allow $1 pam_var_console_t:dir r_dir_perms;

	allow $1 pam_var_console_t:file r_file_perms;

')

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

#

# auth_manage_pam_console_data(domain)

#

interface(`auth_manage_pam_console_data',`

	gen_require(`

		type pam_var_console_t;

		class dir rw_dir_perms;

		class file create_file_perms;

		class lnk_file create_lnk_perms;

	')

	files_search_var($1)

	files_search_pids($1)

	allow $1 pam_var_console_t:dir rw_dir_perms;

	allow $1 pam_var_console_t:file create_file_perms;

	allow $1 pam_var_console_t:lnk_file create_lnk_perms;

')

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

## <summary>

##	Relabel all files on the filesystem, except

##	the shadow passwords and listed exceptions.

## </summary>

## <param name="domain">

##	The type of the domain perfoming this action.

## </param>

## <param name="exception_types" optional="true">

##	The types to be excluded.  Each type or attribute

##	must be negated by the caller.

## </param>

#

interface(`auth_relabel_all_files_except_shadow',`

	gen_require(`

		type shadow_t;

	')

	files_relabel_all_files($1,$2 -shadow_t)

')

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

## <summary>

##	Manage all files on the filesystem, except

##	the shadow passwords and listed exceptions.

## </summary>

## <param name="domain">

##	The type of the domain perfoming this action.

## </param>

## <param name="exception_types" optional="true">

##	The types to be excluded.  Each type or attribute

##	must be negated by the caller.

## </param>

#

interface(`auth_manage_all_files_except_shadow',`

	gen_require(`

		type shadow_t;

	')

	files_manage_all_files($1,$2 -shadow_t)

')

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

## <summary>

##	Execute utempter programs in the utempter domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`auth_domtrans_utempter',`

	gen_require(`

		type utempter_t, utempter_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	domain_auto_trans($1,utempter_exec_t,utempter_t)

	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;

')

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

## <summary>

##	Execute utempter programs in the utempter domain.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

## <param name="role">

##	The role to allow the utempter domain.

## </param>

## <param name="terminal">

##	The type of the terminal allow the utempter domain to use.

## </param>

#

interface(`auth_run_utempter',`

	gen_require(`

		type utempter_t;

		class chr_file rw_file_perms;

	')

	auth_domtrans_utempter($1)

	role $2 types utempter_t;

	allow utempter_t $3:chr_file rw_file_perms;

')

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

#

# auth_read_login_records(domain)

#

interface(`auth_read_login_records',`

	gen_require(`

		type wtmp_t;

		class file r_file_perms;

	')

	logging_search_logs($1)

	allow $1 wtmp_t:file r_file_perms;

')

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

#

# auth_dontaudit_write_login_records(domain)

#

interface(`auth_dontaudit_write_login_records',`

	gen_require(`

		type wtmp_t;

		class file write;

	')

	dontaudit $1 wtmp_t:file write;

')

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

#

# auth_rw_login_records(domain)

#

interface(`auth_rw_login_records',`

	gen_require(`

		type wtmp_t;

		class file rw_file_perms;

	')

	allow $1 wtmp_t:file rw_file_perms;

	logging_search_logs($1)

')

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

#

# auth_create_login_records(domain)

#

interface(`auth_create_login_records',`

	gen_require(`

		type wtmp_t;

	')

	logging_create_log($1,wtmp_t,file)

')

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

#

# auth_manage_login_records(domain)

#

interface(`auth_manage_login_records',`

	gen_require(`

		type wtmp_t;

		class file create_file_perms;

	')

	logging_rw_log_dir($1)

	allow $1 wtmp_t:file create_file_perms;

')

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

## <summary>

##	Unconfined access to the authlogin module.

## </summary>

## <desc>

##	

##	Unconfined access to the authlogin module.

##	

##	

##	Currently, this only allows assertions for

##	the shadow passwords file (/etc/shadow) to

##	be passed.  No access is granted yet.

##	

## </desc>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`auth_unconfined',`

	gen_require(`

		attribute can_read_shadow_passwords;

		attribute can_write_shadow_passwords;

		attribute can_relabelto_shadow_passwords;

	')

	typeattribute $1 can_read_shadow_passwords;

	typeattribute $1 can_write_shadow_passwords;

	typeattribute $1 can_relabelto_shadow_passwords;

')