#DESC NSCD - Name service cache daemon cache lookup of user-name

#

# Author:  Russell Coker <russell@coker.com.au>

# X-Debian-Packages: nscd

#

define(`nscd_socket_domain', `

can_unix_connect($1, nscd_t)

allow $1 nscd_var_run_t:sock_file rw_file_perms;

allow $1 { var_run_t var_t }:dir search;

allow $1 nscd_t:nscd { getpwd getgrp gethost };

dontaudit $1 nscd_t:fd use;

dontaudit $1 nscd_var_run_t:dir { search getattr };

dontaudit $1 nscd_var_run_t:file { getattr read };

dontaudit $1 nscd_t:nscd { shmempwd shmemgrp shmemhost };

')

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

#

# Rules for the nscd_t domain.

#

# nscd is both the client program and the daemon.

daemon_domain(nscd, `, userspace_objmgr')

allow nscd_t etc_t:file r_file_perms;

allow nscd_t etc_t:lnk_file read;

can_network_client(nscd_t)

allow nscd_t port_type:tcp_socket name_connect;

can_ypbind(nscd_t)

file_type_auto_trans(nscd_t, var_run_t, nscd_var_run_t, sock_file)

allow nscd_t self:unix_stream_socket create_stream_socket_perms;

nscd_socket_domain(nscd_client_domain)

nscd_socket_domain(daemon)

# Clients that are allowed to map the database via a fd obtained from nscd.

nscd_socket_domain(nscd_shmem_domain)

allow nscd_shmem_domain nscd_var_run_t:dir r_dir_perms;

allow nscd_shmem_domain nscd_t:nscd { shmempwd shmemgrp shmemhost };

# Receive fd from nscd and map the backing file with read access.

allow nscd_shmem_domain nscd_t:fd use;

# For client program operation, invoked from sysadm_t.

# Transition occurs to nscd_t due to direct_sysadm_daemon. 

allow nscd_t self:nscd { admin getstat };

allow nscd_t admin_tty_type:chr_file rw_file_perms;

read_sysctl(nscd_t)

allow nscd_t self:process { getattr setsched };

allow nscd_t self:unix_dgram_socket create_socket_perms;

allow nscd_t self:fifo_file { read write };

allow nscd_t self:capability { kill setgid setuid net_bind_service };

# for when /etc/passwd has just been updated and has the wrong type

allow nscd_t shadow_t:file getattr;

dontaudit nscd_t sysadm_home_dir_t:dir search;

ifdef(`winbind.te', `

#

# Handle winbind for samba, Might only be needed for targeted policy

#

allow nscd_t winbind_var_run_t:sock_file { read write getattr };

can_unix_connect(nscd_t, winbind_t)

allow nscd_t samba_var_t:dir search;

allow nscd_t winbind_var_run_t:dir { getattr search };

')

r_dir_file(nscd_t, selinux_config_t)

can_getsecurity(nscd_t)

allow nscd_t self:netlink_selinux_socket create_socket_perms;

allow nscd_t self:netlink_route_socket r_netlink_socket_perms;

allow nscd_t tmp_t:dir { search getattr };

allow nscd_t tmp_t:lnk_file read;

allow nscd_t { urandom_device_t random_device_t }:chr_file { getattr read };

log_domain(nscd)

r_dir_file(nscd_t, cert_t)

allow nscd_t tun_tap_device_t:chr_file { read write };

allow nscd_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };