selinux-policy/policy/modules/services/lpd.if

## <summary>Line printer daemon</summary>

########################################
## <summary>
##	Role access for lpd
## </summary>
## <param name="role">
##	<summary>
##	Role allowed access
##	</summary>
## </param>
## <param name="domain">
##	<summary>
##	User domain for the role
##	</summary>
## </param>
## <rolecap/>
#
interface(`lpd_role',`
	gen_require(`
		type lpr_t, lpr_exec_t, print_spool_t;
	')

	role $1 types lpr_t;

	# Transition from the user domain to the derived domain.
	domtrans_pattern($2, lpr_exec_t, lpr_t)
	dontaudit lpr_t $2:unix_stream_socket { read write };

	ps_process_pattern($2, lpr_t)
	allow $2 lpr_t:process { ptrace signal_perms };

	optional_policy(`
		cups_read_config($2)
	')
')

########################################
## <summary>
##	Execute lpd in the lpd domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`lpd_domtrans_checkpc',`
	gen_require(`
		type checkpc_t, checkpc_exec_t;
	')

	domtrans_pattern($1, checkpc_exec_t, checkpc_t)
')

########################################
## <summary>
##	Execute amrecover in the lpd domain, and
##	allow the specified role the lpd domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`lpd_run_checkpc',`
	gen_require(`
		type checkpc_t;
	')

	lpd_domtrans_checkpc($1)
	role $2 types checkpc_t;
')

########################################
## <summary>
##	List the contents of the printer spool directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`lpd_list_spool',`
	gen_require(`
		type print_spool_t;
	')

	files_search_spool($1)
	allow $1 print_spool_t:dir list_dir_perms;
')

########################################
## <summary>
##	Read the printer spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`lpd_read_spool',`
	gen_require(`
		type print_spool_t;
	')

	files_search_spool($1)
	read_files_pattern($1, print_spool_t, print_spool_t)
')

########################################
## <summary>
##	Create, read, write, and delete printer spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`lpd_manage_spool',`
	gen_require(`
		type print_spool_t;
	')

	files_search_spool($1)
	manage_dirs_pattern($1, print_spool_t, print_spool_t)
	manage_files_pattern($1, print_spool_t, print_spool_t)
	manage_lnk_files_pattern($1, print_spool_t, print_spool_t)
')

########################################
## <summary>
##	Relabel from and to the spool files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`lpd_relabel_spool',`
	gen_require(`
		type print_spool_t;
	')

	files_search_spool($1)
	allow $1 print_spool_t:file relabel_file_perms;
')

########################################
## <summary>
##	List the contents of the printer spool directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`lpd_read_config',`
	gen_require(`
		type printconf_t;
	')

	allow $1 printconf_t:dir list_dir_perms;
	read_files_pattern($1, printconf_t, printconf_t)
')

########################################
## <summary>
##	Transition to a user lpr domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
template(`lpd_domtrans_lpr',`
	gen_require(`
		type lpr_t, lpr_exec_t;
	')

	domtrans_pattern($1, lpr_exec_t, lpr_t)
')

########################################
## <summary>
##	Allow the specified domain to execute lpr
##	in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`lpd_exec_lpr',`
	gen_require(`
		type lpr_exec_t;
	')

	can_exec($1, lpr_exec_t)
')