## <summary>System initialization programs (init and init scripts).</summary>

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

## <summary>

##	Create a domain which can be started by init.

## </summary>

## <param name="domain">

##	Type to be used as a domain.

## </param>

## <param name="entry_point">

##	Type of the program to be used as an entry point to this domain.

## </param>

#

interface(`init_domain',`

	gen_require(`

		type init_t;

		role system_r;

		class fd use;

		class fifo_file rw_file_perms;

		class process sigchld;

	')

	domain_type($1)

	domain_entry_file($1,$2)

	role system_r types $1;

	domain_auto_trans(init_t,$2,$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)

	')

')

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

## <summary>

##	Create a domain for long running processes

##	(daemons) which can be started by init scripts.

## </summary>

## <param name="domain">

##	Type to be used as a domain.

## </param>

## <param name="entry_point">

##	Type of the program to be used as an entry point to this domain.

## </param>

#

interface(`init_daemon_domain',`

	gen_require(`

		attribute direct_run_init, direct_init, direct_init_entry;

		type initrc_t;

		role system_r;

	')

	domain_type($1)

	domain_entry_file($1,$2)

	role system_r types $1;

	ifdef(`direct_sysadm_daemon',`

		domain_auto_trans(direct_run_init,$2,$1)

		allow direct_run_init $1:fd use;

		allow direct_run_init $1:process { noatsecure siginh rlimitinh };

		allow $1 direct_run_init:fd use;

		allow $1 direct_run_init:fifo_file rw_file_perms;

		allow $1 direct_run_init:process sigchld;

		typeattribute $1 direct_init;

		typeattribute $2 direct_init_entry;

	')

	# Red Hat systems seem to have a stray

	# fd open from the initrd

	ifdef(`distro_redhat',`

		kernel_dontaudit_use_fd($1)

		files_dontaudit_read_root_file($1)

	')

	ifdef(`targeted_policy',`

		# this regex is a hack, since it assumes there is a

		# _t at the end of the domain type.  If there is no _t

		# at the end of the type, it returns empty!

		bool regexp($1, `\(\w+\)_t', `\1_disable_trans') false;

		if(regexp($1, `\(\w+\)_t', `\1_disable_trans') ) {

			can_exec(initrc_t,$2)

			can_exec(direct_run_init,$2)

		} else {

			domain_auto_trans(initrc_t,$2,$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;

			allow initrc_t $1:process { noatsecure siginh rlimitinh };

			# make sediff happy

			allow $1 $2:file { rx_file_perms entrypoint };

		}

	',`

		domain_auto_trans(initrc_t,$2,$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;

		dontaudit initrc_t $1:process { noatsecure siginh rlimitinh };

		# make sediff happy

		allow $1 $2:file { rx_file_perms entrypoint };

	')

	optional_policy(`nscd.te',`

		nscd_use_socket($1)

	')

')

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

## <summary>

##	Create a domain for short running processes

##	which can be started by init scripts.

## </summary>

## <param name="domain">

##	Type to be used as a domain.

## </param>

## <param name="entry_point">

##	Type of the program to be used as an entry point to this domain.

## </param>

#

interface(`init_system_domain',`

	gen_require(`

		type initrc_t;

		role system_r;

		class fd use;

		class fifo_file rw_file_perms;

		class process sigchld;

	')

	domain_type($1)

	domain_entry_file($1,$2)

	role system_r types $1;

	domain_auto_trans(initrc_t,$2,$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)

	')

')

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

#

# init_domtrans(domain)

#

interface(`init_domtrans',`

	gen_require(`

		type init_t, init_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	domain_auto_trans($1,init_exec_t,init_t)

	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;

')

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

## <summary>

##	Execute the init program in the caller domain.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_exec',`

	gen_require(`

		type init_exec_t;

	')

	corecmd_search_sbin($1)

	can_exec($1,init_exec_t)

')

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

#

# init_get_process_group(domain)

#

interface(`init_get_process_group',`

	gen_require(`

		type init_t;

		class process getpgid;

	')

	allow $1 init_t:process getpgid;

')

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

#

# init_getattr_initctl(domain)

#

interface(`init_getattr_initctl',`

	gen_require(`

		type initctl_t;

		class fifo_file getattr;

	')

	allow $1 initctl_t:fifo_file getattr;

')

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

#

# init_dontaudit_getattr_initctl(domain)

#

interface(`init_dontaudit_getattr_initctl',`

	gen_require(`

		type initctl_t;

		class fifo_file getattr;

	')

	dontaudit $1 initctl_t:fifo_file getattr;

')

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

#

# init_write_initctl(domain)

#

interface(`init_write_initctl',`

	gen_require(`

		type initctl_t;

		class fifo_file write;

	')

	dev_list_all_dev_nodes($1)

	allow $1 initctl_t:fifo_file write;

')

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

#

# init_use_initctl(domain)

#

interface(`init_use_initctl',`

	gen_require(`

		type initctl_t;

		class fifo_file rw_file_perms;

	')

	dev_list_all_dev_nodes($1)

	allow $1 initctl_t:fifo_file rw_file_perms;

')

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

#

# init_dontaudit_use_initctl(domain)

#

interface(`init_dontaudit_use_initctl',`

	gen_require(`

		type initctl_t;

		class fifo_file { read write };

	')

	dontaudit $1 initctl_t:fifo_file { read write };

')

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

## <summary>

##	Send init a null signal.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_signull',`

	gen_require(`

		type init_t;

		class process signull;

	')

	allow $1 init_t:process signull;

')

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

## <summary>

##	Send init a SIGCHLD signal.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_sigchld',`

	gen_require(`

		type init_t;

		class process sigchld;

	')

	allow $1 init_t:process sigchld;

')

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

#

# init_use_fd(domain)

#

interface(`init_use_fd',`

	gen_require(`

		type init_t;

		class fd use;

	')

	allow $1 init_t:fd use;

')

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

#

# init_dontaudit_use_fd(domain)

#

interface(`init_dontaudit_use_fd',`

	gen_require(`

		type init_t;

		class fd use;

	')

	dontaudit $1 init_t:fd use;

')

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

## <summary>

##	Send UDP network traffic to init.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_udp_sendto',`

	gen_require(`

		type init_t;

		class udp_socket { sendto recvfrom };

	')

	allow $1 init_t:udp_socket sendto;

	allow init_t $1:udp_socket recvfrom;

')

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

#

# init_domtrans_script(domain)

#

interface(`init_domtrans_script',`

	gen_require(`

		type initrc_t, initrc_exec_t;

		class process sigchld;

		class fd use;

		class fifo_file rw_file_perms;

	')

	files_list_etc($1)

	domain_auto_trans($1,initrc_exec_t,initrc_t)

	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;

')

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

## <summary>

##	Start and stop daemon programs directly.

## </summary>

## <desc>

##	

##	Start and stop daemon programs directly

##	in the traditional "/etc/init.d/daemon start"

##	style, and do not require run_init.

##	

## </desc>

## <param name="domain">

##	The type of the process performing this action.

## </param>

## <param name="role">

##	The role to be performing this action.

## </param>

## <param name="terminal">

##	The type of the terminal of the user.

## </param>

#

interface(`init_run_daemon',`

	gen_require(`

		attribute direct_run_init, direct_init, direct_init_entry;

		role system_r;

		class chr_file rw_file_perms;

	')

	typeattribute $1 direct_run_init;

	role_transition $2 direct_init_entry system_r;

	dontaudit direct_init $3:chr_file rw_file_perms;

')

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

## <summary>

##	Allow the specified domain to connect to

##	init scripts with a unix domain stream socket.

## </summary>

## <param name="domain">

##      Domain allowed access.

## </param>

#

interface(`init_unix_connect_script',`

	gen_require(`

		type initrc_t;

	')

	allow $1 initrc_t:unix_stream_socket connectto;

')

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

## <summary>

##	Dont audit the specified domain connecting to

##	init scripts with a unix domain stream socket.

## </summary>

## <param name="domain">

##      Domain allowed access.

## </param>

#

interface(`init_dontaudit_unix_connect_script',`

	gen_require(`

		type initrc_t;

		class unix_stream_socket connectto;

	')

	dontaudit $1 initrc_t:unix_stream_socket connectto;

')

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

## <summary>

##	Read init scripts.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_read_script',`

	gen_require(`

		type initrc_exec_t;

		class file { getattr read };

	')

	files_list_etc($1)

	allow $1 initrc_exec_t:file { getattr read };

')

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

#

# init_exec_script(domain)

#

interface(`init_exec_script',`

	gen_require(`

		type initrc_exec_t;

	')

	files_list_etc($1)

	can_exec($1,initrc_exec_t)

')

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

## <summary>

##	Read the process state (/proc/pid) of the init scripts.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_read_script_process_state',`

	gen_require(`

		type initrc_t;

		class dir r_dir_perms;

		class file r_file_perms;

		class lnk_file r_file_perms;

		class process { getattr ptrace };

	')

	#FIXME: search proc dir

	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;

')

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

#

# init_use_script_fd(domain)

#

interface(`init_use_script_fd',`

	gen_require(`

		type initrc_t;

		class fd use;

	')

	allow $1 initrc_t:fd use;

')

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

#

# init_dontaudit_use_script_fd(domain)

#

interface(`init_dontaudit_use_script_fd',`

	gen_require(`

		type initrc_t;

		class fd use;

	')

	dontaudit $1 initrc_t:fd use;

')

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

#

# init_get_script_process_group(domain)

#

interface(`init_get_script_process_group',`

	gen_require(`

		type initrc_t;

		class process getpgid;

	')

	allow $1 initrc_t:process getpgid;

')

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

## <summary>

##	Send SIGCHLD signals to init scripts.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_sigchld_script',`

	gen_require(`

		type initrc_t;

	')

	allow $1 initrc_t:process sigchld;

')

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

## <summary>

##	Read and write init script unnamed pipes.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_rw_script_pipe',`

	gen_require(`

		type initrc_t;

		class chr_file { read write };

	')

	allow $1 initrc_t:fifo_file { read write };

')

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

## <summary>

##	Send UDP network traffic to init scripts.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_udp_sendto_script',`

	gen_require(`

		type initrc_t;

		class udp_socket { sendto recvfrom };

	')

	allow $1 initrc_t:udp_socket sendto;

	allow initrc_t $1:udp_socket recvfrom;

')

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

## <summary>

##	Allow the specified domain to connect to

##	init scripts with a unix socket.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_unix_connect_script',`

	gen_require(`

		type initrc_t;

	')

	allow $1 initrc_t:unix_stream_socket connectto;

')

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

## <summary>

##	Read and write the init script pty.

## </summary>

## <desc>

##	

##	Read and write the init script pty.  This

##	pty is generally opened by the open_init_pty

##	portion of the run_init program so that the

##	daemon does not require direct access to

##	the administrator terminal.

##	

## </desc>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_use_script_pty',`

	gen_require(`

		type initrc_devpts_t;

	')

	term_list_ptys($1)

	allow $1 initrc_devpts_t:chr_file { rw_term_perms lock append };

')

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

## <summary>

##	Do not audit attempts to read and

##	write the init script pty.

## </summary>

## <param name="domain">

##	Domain to not audit.

## </param>

#

interface(`init_dontaudit_use_script_pty',`

	gen_require(`

		type initrc_devpts_t;

	')

	dontaudit $1 initrc_devpts_t:chr_file { rw_term_perms lock append };

')

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

## <summary>

##	Read init scripts.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_read_script_file',`

	gen_require(`

		type initrc_exec_t;

		class file r_file_perms;

	')

	files_search_etc($1)

	allow $1 initrc_exec_t:file r_file_perms;

')

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

## <summary>

##	Read and write init script temporary data.

## </summary>

## <param name="domain">

##	The type of the process performing this action.

## </param>

#

interface(`init_rw_script_tmp_files',`

	gen_require(`

		type initrc_tmp_t;

	')

	files_search_tmp($1)

	allow $1 initrc_tmp_t:file rw_file_perms;

')

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

## <summary>

##	Get the attributes of init script process id files.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_getattr_script_pids',`

	gen_require(`

		type initrc_var_run_t;

		class file getattr;

	')

	allow $1 initrc_var_run_t:file getattr;

')

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

## <summary>

##	List the contents of an init script

##	process id directory.

## </summary>

## <param name="domain">

##	Domain allowed access.

## </param>

#

interface(`init_list_script_pids',`

	gen_require(`

		type initrc_var_run_t;

		class dir r_dir_perms;

	')

	files_search_pids($1)

	allow $1 initrc_var_run_t:dir r_dir_perms;

')

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

#

# init_read_script_pid(domain)

#

interface(`init_read_script_pid',`

	gen_require(`

		type initrc_var_run_t;

		class file r_file_perms;

	')

	files_list_pids($1)

	allow $1 initrc_var_run_t:file r_file_perms;

')

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

#

# init_dontaudit_write_script_pid(domain)

#

interface(`init_dontaudit_write_script_pid',`

	gen_require(`

		type initrc_var_run_t;

		class file { write lock };

	')

	dontaudit $1 initrc_var_run_t:file { write lock };

')

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

#

# init_rw_script_pid(domain)

#

interface(`init_rw_script_pid',`

	gen_require(`

		type initrc_var_run_t;

		class file rw_file_perms;

	')

	files_list_pids($1)

	allow $1 initrc_var_run_t:file rw_file_perms;

')

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

#

# init_dontaudit_rw_script_pid(domain)

#

interface(`init_dontaudit_rw_script_pid',`

	gen_require(`

		type initrc_var_run_t;

		class file rw_file_perms;

	')

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

')