#
# Macros for lpr domains.
#

#
# Authors:  Stephen Smalley <sds@epoch.ncsc.mil> and Timothy Fraser 
#

#
# lpr_domain(domain_prefix)
#
# Define a derived domain for the lpr/lpq/lprm programs when executed
# by a user domain.
#
# The type declaration for the executable type for this program is
# provided separately in domains/program/lpr.te. 
#
undefine(`lpr_domain')
define(`lpr_domain',`
# Derived domain based on the calling user domain and the program
type $1_lpr_t, domain, privlog, nscd_client_domain;

# Transition from the user domain to the derived domain.
domain_auto_trans($1_t, lpr_exec_t, $1_lpr_t)

allow $1_t $1_lpr_t:process signull;

# allow using shared objects, accessing root dir, etc
uses_shlib($1_lpr_t)

read_locale($1_lpr_t)

# The user role is authorized for this domain.
role $1_r types $1_lpr_t;

# This domain is granted permissions common to most domains (including can_net)
can_network_client($1_lpr_t)
allow $1_lpr_t port_type:tcp_socket name_connect;
can_ypbind($1_lpr_t)

# Use capabilities.
allow $1_lpr_t $1_lpr_t:capability { setuid dac_override net_bind_service chown };

allow $1_lpr_t self:unix_stream_socket create_stream_socket_perms;

# for lpd config files (should have a new type)
r_dir_file($1_lpr_t, etc_t)

# for test print
r_dir_file($1_lpr_t, usr_t)
ifdef(`lpd.te', `
r_dir_file($1_lpr_t, printconf_t)
')

tmp_domain($1_lpr)

# Type for spool files.
type $1_print_spool_t, file_type, sysadmfile;
# Use this type when creating files in /var/spool/lpd and /var/spool/cups.
file_type_auto_trans($1_lpr_t, print_spool_t, $1_print_spool_t, file)
allow $1_lpr_t var_spool_t:dir search;

# for /dev/null
allow $1_lpr_t device_t:dir search;

# Access the terminal.
access_terminal($1_lpr_t, $1)

# Inherit and use descriptors from gnome-pty-helper.
ifdef(`gnome-pty-helper.te', `allow $1_lpr_t $1_gph_t:fd use;')
allow $1_lpr_t privfd:fd use;

# Read user files. 
read_content(sysadm_lpr_t, $1) 
read_content($1_lpr_t, $1)

# Read and write shared files in the spool directory.
allow $1_lpr_t print_spool_t:file rw_file_perms;

# lpr can run in lightweight mode, without a local print spooler. If the
# lpd policy is present, grant some permissions for this domain and the lpd
# domain to interact.
ifdef(`lpd.te', `
allow $1_lpr_t { var_t var_run_t }:dir search;
allow $1_lpr_t lpd_var_run_t:dir search;
allow $1_lpr_t lpd_var_run_t:sock_file write;

# Allow lpd to read, rename, and unlink spool files.
allow lpd_t $1_print_spool_t:file r_file_perms;
allow lpd_t $1_print_spool_t:file link_file_perms;

# Connect to lpd via a Unix domain socket.
allow $1_lpr_t printer_t:sock_file rw_file_perms;
can_unix_connect($1_lpr_t, lpd_t)
dontaudit $1_lpr_t $1_t:unix_stream_socket { read write };

# Connect to lpd via a TCP socket.
can_tcp_connect($1_lpr_t, lpd_t)

allow $1_lpr_t fs_t:filesystem getattr;
# Send SIGHUP to lpd.
allow $1_lpr_t lpd_t:process signal;

')dnl end if lpd.te

ifdef(`xdm.te', `
can_pipe_xdm($1_lpr_t)
')

ifdef(`cups.te', `
allow { $1_lpr_t $1_t } cupsd_etc_t:dir search;
allow $1_lpr_t { cupsd_etc_t cupsd_rw_etc_t }:file { getattr read };
can_tcp_connect({ $1_lpr_t $1_t }, cupsd_t)
')dnl end ifdef cups.te

')dnl end macro definition