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

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## <summary>Line printer daemon</summary>
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#######################################
## <summary>
## The per user domain template for the lpd module.
## </summary>
## <desc>
## <p>
## This template creates a derived domains which are used
## for lpr printing client.
## </p>
## <p>
## This template is invoked automatically for each user, and
## generally does not need to be invoked directly
## by policy writers.
## </p>
## </desc>
## <param name="userdomain_prefix">
## <summary>
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## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </summary>
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## </param>
## <param name="user_domain">
## <summary>
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## The type of the user domain.
## </summary>
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## </param>
## <param name="user_role">
## <summary>
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## The role associated with the user domain.
## </summary>
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## </param>
#
template(`lpd_per_userdomain_template',`
gen_require(`
type lpr_exec_t, lpd_t, print_spool_t, printconf_t, lpd_var_run_t, printer_t;
')
##############################
#
# Declarations
#
# Derived domain based on the calling user domain and the program
type $1_lpr_t;
domain_type($1_lpr_t)
domain_entry_file($1_lpr_t,lpr_exec_t)
role $3 types $1_lpr_t;
type $1_lpr_tmp_t;
files_tmp_file($1_lpr_tmp_t)
# Type for spool files.
type $1_print_spool_t;
files_type($1_print_spool_t)
##############################
#
# Local policy
#
allow $1_lpr_t self:capability { setuid dac_override net_bind_service chown };
allow $1_lpr_t self:unix_stream_socket create_stream_socket_perms;
allow $1_lpr_t self:tcp_socket create_socket_perms;
allow $1_lpr_t self:udp_socket create_socket_perms;
# lpr can run in lightweight mode, without a local print spooler.
allow $1_lpr_t lpd_var_run_t:dir search;
allow $1_lpr_t lpd_var_run_t:sock_file write;
files_read_var_files($1_lpr_t)
# Connect to lpd via a Unix domain socket.
allow $1_lpr_t printer_t:sock_file rw_file_perms;
allow $1_lpr_t lpd_t:unix_stream_socket connectto;
# connecto to a network lpd
allow $1_lpr_t lpd_t:tcp_socket { connectto recvfrom };
allow lpd_t $1_lpr_t:tcp_socket { acceptfrom recvfrom };
# Send SIGHUP to lpd.
allow $1_lpr_t lpd_t:process signal;
can_exec($1_lpr_t,lpr_exec_t)
allow $1_lpr_t $1_lpr_tmp_t:dir create_dir_perms;
allow $1_lpr_t $1_lpr_tmp_t:file create_file_perms;
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files_tmp_filetrans($1_lpr_t, $1_lpr_tmp_t, { file dir })
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allow $1_lpr_t $1_print_spool_t:file create_file_perms;
allow $1_lpr_t print_spool_t:dir rw_dir_perms;
type_transition $1_lpr_t print_spool_t:file $1_print_spool_t;
# Read and write shared files in the spool directory.
allow $1_lpr_t print_spool_t:file rw_file_perms;
allow $1_lpr_t printconf_t:dir r_dir_perms;
allow $1_lpr_t printconf_t:file r_file_perms;
allow $1_lpr_t printconf_t:lnk_file { getattr read };
dontaudit $1_lpr_t $2:unix_stream_socket { read write };
# Transition from the user domain to the derived domain.
allow $2 $1_lpr_t:fd use;
allow $1_lpr_t $2:fd use;
allow $1_lpr_t $2:fifo_file rw_file_perms;
allow $1_lpr_t $2:process sigchld;
domain_auto_trans($2,lpr_exec_t,$1_lpr_t)
allow $2 $1_lpr_t:process signull;
# 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;
kernel_tcp_recvfrom($1_lpr_t)
corenet_tcp_sendrecv_generic_if($1_lpr_t)
corenet_udp_sendrecv_generic_if($1_lpr_t)
corenet_raw_sendrecv_generic_if($1_lpr_t)
corenet_tcp_sendrecv_all_nodes($1_lpr_t)
corenet_udp_sendrecv_all_nodes($1_lpr_t)
corenet_raw_sendrecv_all_nodes($1_lpr_t)
corenet_tcp_sendrecv_all_ports($1_lpr_t)
corenet_udp_sendrecv_all_ports($1_lpr_t)
corenet_tcp_bind_all_nodes($1_lpr_t)
corenet_udp_bind_all_nodes($1_lpr_t)
corenet_tcp_connect_all_ports($1_lpr_t)
# for /dev/null
dev_list_all_dev_nodes($1_lpr_t)
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domain_use_interactive_fds($1_lpr_t)
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files_search_spool($1_lpr_t)
# for lpd config files (should have a new type)
files_read_etc_files($1_lpr_t)
# for test print
files_read_usr_files($1_lpr_t)
#Added to cover read_content macro
files_list_home($1_lpr_t)
files_read_generic_tmp_files($1_lpr_t)
fs_getattr_xattr_fs($1_lpr_t)
# Access the terminal.
term_use_controlling_term($1_lpr_t)
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term_use_generic_ptys($1_lpr_t)
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libs_use_ld_so($1_lpr_t)
libs_use_shared_libs($1_lpr_t)
miscfiles_read_localization($1_lpr_t)
sysnet_read_config($1_lpr_t)
userdom_read_user_tmp_symlinks($1,$1_lpr_t)
# Write to the user domain tty.
userdom_use_user_terminals($1,$1_lpr_t)
tunable_policy(`read_default_t',`
files_list_default($1_lpr_t)
files_read_default_symlinks($1_lpr_t)
files_read_default_files($1_lpr_t)
')
tunable_policy(`read_untrusted_content',`
#list and read user specific untrusted content
files_list_home($1_lpr_t)
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userdom_list_user_home_dirs($1,$1_lpr_t)
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userdom_read_user_untrusted_content_files($1,$1_lpr_t)
#list and read user specific temporary untrusted content
files_list_tmp($1_lpr_t)
userdom_read_user_tmp_untrusted_content_files($1,$1_lpr_t)
')
tunable_policy(`use_nfs_home_dirs',`
files_list_home($1_lpr_t)
fs_list_auto_mountpoints($1_lpr_t)
fs_read_nfs_files($1_lpr_t)
fs_read_nfs_symlinks($1_lpr_t)
')
tunable_policy(`use_samba_home_dirs',`
files_list_home($1_lpr_t)
fs_list_auto_mountpoints($1_lpr_t)
fs_read_cifs_files($1_lpr_t)
fs_read_cifs_symlinks($1_lpr_t)
')
optional_policy(`cups',`
cups_read_config($1_lpr_t)
cups_tcp_connect($1_lpr_t)
cups_read_config($2)
cups_tcp_connect($2)
')
optional_policy(`logging',`
logging_send_syslog_msg($1_lpr_t)
')
optional_policy(`nscd',`
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nscd_socket_use($1_lpr_t)
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')
optional_policy(`nis',`
nis_use_ypbind($1_lpr_t)
')
ifdef(`TODO',`
optional_policy(`xdm', `
allow $1_lpr_t xdm_t:fd use;
allow $1_lpr_t xdm_var_run_t:dir search;
allow $1_lpr_t xdm_t:fifo_file { getattr read write ioctl };
')
') dnl end TODO
')
#######################################
## <summary>
## The administrative functions template for the lpd module.
## </summary>
## <desc>
## <p>
## This template creates rules for administrating the ldp service,
## allowing the specified user to manage lpr files.
## </p>
## </desc>
## <param name="userdomain_prefix">
## <summary>
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## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </summary>
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## </param>
#
template(`lpr_admin_template',`
gen_require(`
type $1_lpr_t;
')
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userdom_read_all_users_home_content_files($1_lpr_t)
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# Allow per user lpr domain read acces for specific user.
tunable_policy(`read_untrusted_content',`
userdom_read_all_untrusted_content($1_lpr_t)
userdom_read_all_tmp_untrusted_content($1_lpr_t)
')
')
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########################################
## <summary>
## Execute lpd in the lpd domain.
## </summary>
## <param name="domain">
## <summary>
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## Domain allowed access.
## </summary>
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## </param>
#
interface(`lpd_domtrans_checkpc',`
gen_require(`
type checkpc_t, checkpc_exec_t;
')
domain_auto_trans($1,checkpc_exec_t,checkpc_t)
allow $1 checkpc_t:fd use;
allow checkpc_t $1:fd use;
allow checkpc_t $1:fifo_file rw_file_perms;
allow checkpc_t $1:process sigchld;
')
########################################
## <summary>
## Execute amrecover in the lpd domain, and
## allow the specified role the lpd domain.
## </summary>
## <param name="domain">
## <summary>
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## Domain allowed access.
## </summary>
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## </param>
## <param name="role">
## <summary>
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## The role to be allowed the lpd domain.
## </summary>
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## </param>
## <param name="terminal">
## <summary>
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## The type of the terminal allow the lpd domain to use.
## </summary>
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## </param>
#
interface(`lpd_run_checkpc',`
gen_require(`
type checkpc_t;
')
lpd_domtrans_checkpc($1)
role $2 types checkpc_t;
allow checkpc_t $3:chr_file rw_term_perms;
')
########################################
## <summary>
## List the contents of the printer spool directories.
## </summary>
## <param name="domain">
## <summary>
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## Domain allowed access.
## </summary>
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## </param>
#
interface(`lpd_list_spool',`
gen_require(`
type print_spool_t;
')
files_search_spool($1)
allow $1 print_spool_t:dir list_dir_perms;
')
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########################################
## <summary>
## Create, read, write, and delete printer spool files.
## </summary>
## <param name="domain">
## <summary>
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## Domain allowed access.
## </summary>
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## </param>
#
interface(`lpd_manage_spool',`
gen_require(`
type print_spool_t;
')
files_search_spool($1)
# cjp: cups wants setattr
allow $1 print_spool_t:dir { rw_dir_perms setattr };
allow $1 print_spool_t:file manage_file_perms;
')
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########################################
## <summary>
## List the contents of the printer spool directories.
## </summary>
## <param name="domain">
## <summary>
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## Domain allowed access.
## </summary>
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## </param>
#
interface(`lpd_read_config',`
gen_require(`
type printconf_t;
')
allow $1 printconf_t:dir list_dir_perms;
allow $1 printconf_t:file r_file_perms;
')