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

## <module name="domain" layer="system">
## <summary>Core policy for domains.</summary>

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

	# mark as a domain
	typeattribute $1 domain;

	# allow the domain to read its /proc/pid entries
	allow $1 self:dir r_dir_perms;
	allow $1 self:{ file lnk_file } rw_file_perms;

	# allow $1 to create child processes in this domain
	allow $1 self:process { fork sigchld };
')

define(`domain_make_base_domain_depend',`
	attribute domain;

	class dir r_dir_perms;
	class file rw_file_perms;
	class lnk_file r_file_perms;
')

########################################
#
# domain_make_domain(domain)
#
define(`domain_make_domain',`
	# start with basic domain
	domain_make_base_domain($1)

	# Use trusted objects in /dev
	devices_use_dev_null($1)
	devices_use_dev_zero($1)
	terminal_use_controlling_terminal($1)

	# read the root directory
	files_read_root_dir($1)

	# send init a sigchld
	init_sigchld($1)

	# this seems highly questionable:
	optional_policy(`rpm.te',`
		rpm_use_file_descriptors($1)
		rpm_read_pipe($1)
	')
')

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

	files_make_file($2)
	allow $1 $2:file entrypoint;
	typeattribute $2 entry_type;
')

define(`domain_make_entrypoint_file_depend',`
	attribute entry_type;

	class file entrypoint;
')

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

	typeattribute $1 privfd;
')

define(`domain_make_file_descriptors_widely_inheritable_depend',`
	attribute privfd;
')

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

	allow $1 privfd:fd use;
')

define(`domain_use_widely_inheritable_file_descriptors_depend',`
	attribute privfd;

	class fd use;
')

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

	dontaudit $1 privfd:fd use;
')

define(`domain_ignore_use_widely_inheritable_file_descriptors_depend',`
	attribute privfd;

	class fd use;
')

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

	allow $1 domain:process setsched;
')

define(`domain_set_all_domains_priorities_depend',`
	attribute domain;

	class process setsched;
')

########################################
## <interface name="domain_signal_all_domains">
##	<description>
##		Send general signals to all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_signal_all_domains',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process signal;
')

define(`domain_signal_all_domains_depend',`
	attribute domain;

	class process signal;
')

########################################
## <interface name="domain_signull_all_domains">
##	<description>
##		Send a null signal to all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_signull_all_domains',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process signull;
')

define(`domain_signull_all_domains_depend',`
	attribute domain;

	class process signull;
')

########################################
## <interface name="domain_sigstop_all_domains">
##	<description>
##		Send a stop signal to all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_sigstop_all_domains',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process sigstop;
')

define(`domain_sigstop_all_domains_depend',`
	attribute domain;

	class process sigstop;
')

########################################
## <interface name="domain_sigchld_all_domains">
##	<description>
##		Send a child terminated signal to all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_sigchld_all_domains',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process sigchld;
')

define(`domain_sigchld_all_domains_depend',`
	attribute domain;

	class process sigchld;
')

########################################
## <interface name="domain_kill_all_domains">
##	<description>
##		Send a kill signal to all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_kill_all_domains',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process sigkill;
	allow $1 self:capability kill;
')

define(`domain_kill_all_domains_depend',`
	attribute domain;

	class process sigkill;
	class capability kill;
')

########################################
## <interface name="domain_read_all_domains_process_state">
##	<description>
##		Read the process state (/proc/pid) of all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_read_all_domains_process_state',`
	requires_block_template(`$0'_depend)

	allow $1 domain:dir r_dir_perms;
	allow $1 domain:lnk_file r_file_perms;
	allow $1 domain:file r_file_perms;
	allow $1 domain:process getattr;

	# We need to suppress this denial because procps tries to access
	# /proc/pid/environ and this now triggers a ptrace check in recent kernels
	# (2.4 and 2.6).  Might want to change procps to not do this, or only if
	# running in a privileged domain.
	dontaudit $1 domain:process ptrace;
')

define(`domain_read_all_domains_process_state_depend',`
	attribute domain;

	class dir r_dir_perms;
	class lnk_file r_file_perms;
	class file r_file_perms;
	class process { getattr ptrace };
')

########################################
## <interface name="domain_ignore_read_all_domains_process_dirs">
##	<description>
##		Do not audit attempts to read the process state
##		directories of all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_ignore_read_all_domains_process_dirs',`
	requires_block_template(`$0'_depend)

	dontaudit $1 domain:dir r_dir_perms;
')

define(`domain_ignore_read_all_domains_process_dirs_depend',`
	attribute domain;

	class dir r_dir_perms;
')


########################################
## <interface name="domain_get_all_domains_session_id">
##	<description>
##		Get the session ID of all domains.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_get_all_domains_session_id',`
	requires_block_template(`$0'_depend)

	allow $1 domain:process getsession;
')

define(`domain_get_all_domains_session_id_depend',`
	attribute domain;

	class process getsession;
')

########################################
## <interface name="domain_ignore_get_all_domains_udp_socket_attributes">
##	<description>
##		Do not audit attempts to get the attributes
##		of all domains UDP sockets.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_ignore_get_all_domains_udp_socket_attributes',`
	requires_block_template(`$0'_depend)

	dontaudit $1 domain:udp_socket getattr;
')

define(`domain_ignore_get_all_domains_udp_socket_attributes_depend',`
	attribute domain;

	class udp_socket getattr;
')

########################################
## <interface name="domain_ignore_get_all_domains_tcp_socket_attributes">
##	<description>
##		Do not audit attempts to get the attributes
##		of all domains TCP sockets.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_ignore_get_all_domains_tcp_socket_attributes',`
	requires_block_template(`$0'_depend)

	dontaudit $1 domain:tcp_socket getattr;
')

define(`domain_ignore_get_all_domains_tcp_socket_attributes_depend',`
	attribute domain;

	class tcp_socket getattr;
')

########################################
## <interface name="domain_ignore_get_all_domains_unix_dgram_socket_attributes">
##	<description>
##		Do not audit attempts to get the attributes
##		of all domains unix datagram sockets.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_ignore_get_all_domains_unix_dgram_socket_attributes',`
	requires_block_template(`$0'_depend)

	dontaudit $1 domain:unix_dgram_socket getattr;
')

define(`domain_ignore_get_all_domains_unix_dgram_socket_attributes_depend',`
	attribute domain;

	class unix_dgram_socket getattr;
')

########################################
## <interface name="domain_ignore_get_all_domains_pipe_attributes">
##	<description>
##		Do not audit attempts to get the attributes
##		of all domains unnamed pipes.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`domain_ignore_get_all_domains_pipe_attributes',`
	requires_block_template(`$0'_depend)

	dontaudit $1 domain:fifo_file getattr;
')

define(`domain_ignore_get_all_domains_pipe_attributes_depend',`
	attribute domain;

	class fifo_file getattr;
')

########################################
#
# domain_execute_all_entrypoint_programs(domain)
#
define(`domain_execute_all_entrypoint_programs',`
	requires_block_template(`$0'_depend)
	
	can_exec($1,entry_type)

')

define(`domain_execute_all_entrypoint_programs_depend',`
	attribute entry_type;

	class file { getattr read ioctl lock execute execute_no_trans };
')

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

	allow $1 entry_type:lnk_file r_file_perms;
	allow $1 entry_type:file r_file_perms;
')

define(`domain_read_all_entrypoint_programs_depend',`
	attribute entry_type;

	class file r_file_perms;
	class lnk_file r_file_perms;
')

## </module>

#
# These next macros are not interfaces, but actually are 
# support macros.  Due to the domain_ prefix, they 
# are placed in this module.
#

########################################
#
# domain_trans(source_domain,entrypoint_file,target_domain)
#
define(`domain_trans',`
	requires_block_template(`$0'_depend)

	allow $1 $2:file rx_file_perms;
	allow $1 $3:process transition;
	dontaudit $1 $3:process { noatsecure siginh rlimitinh };
')

define(`domain_trans_depend',`
	class file rx_file_perms;
	process { transition noatsecure siginh rlimitinh };
')

########################################
#
# domain_auto_trans(source_domain,entrypoint_file,target_domain)
#
define(`domain_auto_trans',`
	domain_trans($1,$2,$3)
	type_transition $1 $2:process $3;
')