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

## <summary>Common UNIX printing system</summary>

########################################
## <summary>
##	Setup cups to transtion to the cups backend domain
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_backend',`
	gen_require(`
		type cupsd_t;
	')

	domain_type($1)
	domain_entry_file($1, $2)
	role system_r types $1;

	domtrans_pattern(cupsd_t, $2, $1)
	allow cupsd_t $1:process signal;
	allow $1 cupsd_t:unix_stream_socket connected_stream_socket_perms;

	cups_read_config($1)
	cups_append_log($1)
')

########################################
## <summary>
##	Execute cups in the cups domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`cups_domtrans',`
	gen_require(`
		type cupsd_t, cupsd_exec_t;
	')

	domtrans_pattern($1, cupsd_exec_t, cupsd_t)
')

########################################
## <summary>
##	Connect to cupsd over an unix domain stream socket.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_stream_connect',`
	gen_require(`
		type cupsd_t, cupsd_var_run_t;
	')

	files_search_pids($1)
	stream_connect_pattern($1, cupsd_var_run_t, cupsd_var_run_t, cupsd_t)
')

########################################
## <summary>
##	Connect to cups over TCP.  (Deprecated)
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_tcp_connect',`
	refpolicywarn(`$0($*) has been deprecated.')
')

########################################
## <summary>
##	Send and receive messages from
##	cups over dbus.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_dbus_chat',`
	gen_require(`
		type cupsd_t;
		class dbus send_msg;
	')

	allow $1 cupsd_t:dbus send_msg;
	allow cupsd_t $1:dbus send_msg;
')

########################################
## <summary>
##	Read cups PID files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_read_pid_files',`
	gen_require(`
		type cupsd_var_run_t;
	')

	files_search_pids($1)
	allow $1 cupsd_var_run_t:file read_file_perms;
')

########################################
## <summary>
##	Execute cups_config in the cups_config domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`cups_domtrans_config',`
	gen_require(`
		type cupsd_config_t, cupsd_config_exec_t;
	')

	domtrans_pattern($1, cupsd_config_exec_t, cupsd_config_t)
')

########################################
## <summary>
##	Send generic signals to the cups
##	configuration daemon.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_signal_config',`
	gen_require(`
		type cupsd_config_t;
	')

	allow $1 cupsd_config_t:process signal;
')

########################################
## <summary>
##	Send and receive messages from
##	cupsd_config over dbus.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_dbus_chat_config',`
	gen_require(`
		type cupsd_config_t;
		class dbus send_msg;
	')

	allow $1 cupsd_config_t:dbus send_msg;
	allow cupsd_config_t $1:dbus send_msg;
')

########################################
## <summary>
##	Read cups configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`cups_read_config',`
	gen_require(`
		type cupsd_etc_t, cupsd_rw_etc_t;
		type hplip_etc_t;
	')

	files_search_etc($1)
	read_files_pattern($1, cupsd_etc_t, cupsd_etc_t)
	read_files_pattern($1, hplip_etc_t, hplip_etc_t)
	read_files_pattern($1, cupsd_etc_t, cupsd_rw_etc_t)
')

########################################
## <summary>
##	Read cups-writable configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`cups_read_rw_config',`
	gen_require(`
		type cupsd_etc_t, cupsd_rw_etc_t;
	')

	files_search_etc($1)
	read_files_pattern($1, cupsd_etc_t, cupsd_rw_etc_t)
')

########################################
## <summary>
##	Read cups log files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`cups_read_log',`
	gen_require(`
		type cupsd_log_t;
	')

	logging_search_logs($1)
	allow $1 cupsd_log_t:file read_file_perms;
')

########################################
## <summary>
##	Append cups log files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_append_log',`
	gen_require(`
		type cupsd_log_t;
	')

	logging_search_logs($1)
	append_files_pattern($1, cupsd_log_t, cupsd_log_t)
')

########################################
## <summary>
##	Write cups log files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_write_log',`
	gen_require(`
		type cupsd_log_t;
	')

	logging_search_logs($1)
	allow $1 cupsd_log_t:file write_file_perms;
')

########################################
## <summary>
##	Connect to ptal over an unix domain stream socket.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`cups_stream_connect_ptal',`
	gen_require(`
		type ptal_t, ptal_var_run_t;
	')

	files_search_pids($1)
	stream_connect_pattern($1, ptal_var_run_t, ptal_var_run_t, ptal_t)
')

########################################
## <summary>
##	All of the rules required to administrate 
##	an cups environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to be allowed to manage the cups domain.
##	</summary>
## </param>
## <rolecap/>
#
interface(`cups_admin',`
	gen_require(`
		type cupsd_t, cupsd_tmp_t, cupsd_lpd_tmp_t;
		type cupsd_etc_t, cupsd_log_t;
		type cupsd_config_var_run_t, cupsd_lpd_var_run_t;
		type cupsd_var_run_t, ptal_etc_t;
		type ptal_var_run_t, hplip_var_run_t;
		type cupsd_initrc_exec_t;
		type hplip_etc_t;
	')

	allow $1 cupsd_t:process { ptrace signal_perms };
	ps_process_pattern($1, cupsd_t)

	init_labeled_script_domtrans($1, cupsd_initrc_exec_t)
	domain_system_change_exemption($1)
	role_transition $2 cupsd_initrc_exec_t system_r;
	allow $2 system_r;

	admin_pattern($1, cupsd_etc_t)
	files_list_etc($1)

	admin_pattern($1, cupsd_config_var_run_t)

	admin_pattern($1, cupsd_log_t)
	logging_list_logs($1)

	admin_pattern($1, cupsd_lpd_tmp_t)

	admin_pattern($1, cupsd_lpd_var_run_t)

	admin_pattern($1, cupsd_tmp_t)
	files_list_tmp($1)

	admin_pattern($1, cupsd_var_run_t)
	files_list_pids($1)

	admin_pattern($1, hplip_etc_t)

	admin_pattern($1, hplip_var_run_t)

	admin_pattern($1, ptal_etc_t)

	admin_pattern($1, ptal_var_run_t)
')