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

## <module name="init" layer="system">
## <summary>System initialization programs (init and init scripts).</summary>

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

	domain_type($1)
	domain_entry_file($1,$2)

	role system_r types $1;

	allow init_t $1:process transition;
	allow init_t $2:file rx_file_perms;
	dontaudit init_t $1:process { noatsecure siginh rlimitinh };
	type_transition init_t $2:process $1;

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

	# Red Hat systems seem to have a stray
	# fd open from the initrd
	optional_policy(`distro_redhat',`
		kernel_dontaudit_use_fd($1)
		files_dontaudit_read_root_file($1)
	')
')

define(`init_domain_depend',`
	type init_t;
	class file rx_file_perms;
	class fd use;
	class fifo_file rw_file_perms;
	class process { transition noatsecure siginh rlimitinh sigchld };
	role system_r;
')

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

	domain_type($1)
	domain_entry_file($1,$2)

	role system_r types $1;

	allow initrc_t $1:process transition;
	allow initrc_t $2:file rx_file_perms;
	dontaudit initrc_t $1:process { noatsecure siginh rlimitinh };
	type_transition initrc_t $2:process $1;

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

	# Red Hat systems seem to have a stray
	# fd open from the initrd
	optional_policy(`distro_redhat',`
		kernel_dontaudit_use_fd($1)
		files_dontaudit_read_root_file($1)
	')
')

define(`init_daemon_domain_depend',`
	type initrc_t;

	role system_r;

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

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

	domain_type($1)
	domain_entry_file($1,$2)

	role system_r types $1;

	allow initrc_t $1:process transition;
	allow initrc_t $2:file rx_file_perms;
	dontaudit initrc_t $1:process { noatsecure siginh rlimitinh };
	type_transition initrc_t $2:process $1;

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

	# Red Hat systems seem to have a stray
	# fd open from the initrd
	optional_policy(`distro_redhat',`
		kernel_dontaudit_use_fd($1)
		files_dontaudit_read_root_file($1)
	')
')

define(`init_system_domain_depend',`
	type initrc_t;
	role system_r;

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

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

	allow $1 init_exec_t:file rx_file_perms;
	allow $1 init_t:process transition;
	type_transition $1 init_exec_t:process init_t;
	dontaudit $1 init_t:process { noatsecure siginh rlimitinh };

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

define(`init_domtrans_depend',`
	type init_t, init_exec_t;

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

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

	allow $1 init_t:process getpgid;
')

define(`init_get_process_group_depend',`
	type init_t;

	class process getpgid;
')

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

	allow $1 initctl_t:fifo_file getattr;
')

define(`init_getattr_initctl_depend',`
	type initctl_t;

	class fifo_file getattr;
')

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

	dontaudit $1 initctl_t:fifo_file getattr;
')

define(`init_getattr_initctl_depend',`
	type initctl_t;

	class fifo_file getattr;
')

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

	dev_list_all_dev_nodes($1)
	allow $1 initctl_t:fifo_file rw_file_perms;
')

define(`init_use_initctl_depend',`
	type initctl_t;

	class fifo_file rw_file_perms;
')

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

	dontaudit $1 initctl_t:fifo_file { read write };
')

define(`init_dontaudit_use_initctl_depend',`
	type initctl_t;

	class fifo_file { read write };
')

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

	allow $1 init_t:process sigchld;
')

define(`init_sigchld_depend',`
	type init_t;

	class process sigchld;
')

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

	allow $1 init_t:fd use;
')

define(`init_use_fd_depend',`
	type init_t;

	class fd use;
')

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

	dontaudit $1 init_t:fd use;
')

define(`init_dontaudit_use_fd_depend',`
	type init_t;

	class fd use;
')

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

	allow $1 initrc_exec_t:file rx_file_perms;
	allow $1 initrc_t:process transition;
	type_transition $1 initrc_exec_t:process init_t;
	dontaudit $1 init_t:process { noatsecure siginh rlimitinh };

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

define(`init_domtrans_script_depend',`
	type initrc_t, initrc_exec_t;

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

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

	can_exec($1,initrc_exec_t)

')

define(`init_exec_script_depend',`
	type initrc_exec_t;

	class file { getattr read execute execute_no_trans };
')

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

	allow $1 initrc_t:dir r_dir_perms;
	allow $1 initrc_t:{ file lnk_file } r_file_perms;
	allow $1 initrc_t: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 initrc_t:process ptrace;
')

define(`init_read_script_process_state_depend',`
	type initrc_t;

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

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

	allow $1 initrc_t:fd use;
')

define(`init_use_script_fd_depend',`
	type initrc_t;

	class fd use;
')

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

	dontaudit $1 initrc_t:fd use;
')

define(`init_dontaudit_use_script_fd_depend',`
	type initrc_t;

	class fd use;
')

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

	allow $1 initrc_t:process getpgid;
')

define(`init_get_script_process_group_depend',`
	type initrc_t;

	class process getpgid;
')

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

	term_list_ptys($1)
	allow $1 initrc_devpts_t:chr_file { getattr read write ioctl };
')

define(`init_use_script_pty_depend',`
	type initrc_devpts_t;

	class chr_file { getattr read write ioctl };
')

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

	dontaudit $1 initrc_devpts_t:chr_file { read write ioctl };
')

define(`init_dontaudit_use_script_pty_depend',`
	type initrc_devpts_t;

	class chr_file { read write ioctl };
')

########################################
## <interface name="init_rw_script_tmp_files">
##	<description>
##		Read and write init script temporary data.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`init_rw_script_tmp_files',`
	requires_block_template(`$0'_depend)

	# FIXME: read tmp_t
	allow $1 initrc_tmp_t:file rw_file_perms;
')

define(`init_rw_script_tmp_files_depend',`
	type initrc_var_run_t;

	class file rw_file_perms;
')

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

	files_list_pids($1)
	allow $1 initrc_var_run_t:file r_file_perms;
')

define(`init_read_script_pid_depend',`
	type initrc_var_run_t;

	class file r_file_perms;
')

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

	dontaudit $1 initrc_var_run_t:file { write lock };
')

define(`init_dontaudit_write_script_pid_depend',`
	type initrc_var_run_t;

	class file { write lock };
')

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

	files_list_pids($1)
	allow $1 initrc_var_run_t:file rw_file_perms;
')

define(`init_rw_script_pid_depend',`
	type initrc_var_run_t;

	class file rw_file_perms;
')

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

	dontaudit $1 initrc_var_run_t:file { getattr read write append };
')

define(`init_dontaudit_rw_script_pid_depend',`
	type initrc_var_run_t;

	class file rw_file_perms;
')

## </module>