#DESC DHCPD - DHCP server

#

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

# based on the dhcpc_t policy from:

#          Wayne Salamon (NAI Labs) <wsalamon@tislabs.com>

# X-Debian-Packages: dhcp dhcp3-server 

#

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

#

# Rules for the dhcpd_t domain.

#

# dhcpd_t is the domain for the server side of DHCP. dhcpd, the DHCP 

# server daemon rc scripts, runs in this domain.

# dhcpd_exec_t is the type of the dhcpdd executable.

# The dhcpd_t can be used for other DHCPC related files as well.

#

daemon_domain(dhcpd, `, nscd_client_domain')

# for UDP port 4011

allow dhcpd_t pxe_port_t:udp_socket name_bind;

type dhcp_etc_t, file_type, sysadmfile, usercanread;

# Use the network.

can_network(dhcpd_t)

allow dhcpd_t port_type:tcp_socket name_connect;

allow dhcpd_t dhcpd_port_t:{ tcp_socket udp_socket } name_bind;

can_ypbind(dhcpd_t)

allow dhcpd_t self:unix_dgram_socket create_socket_perms;

allow dhcpd_t self:unix_stream_socket create_socket_perms;

allow dhcpd_t self:netlink_route_socket r_netlink_socket_perms;

allow dhcpd_t var_lib_t:dir search;

allow dhcpd_t devtty_t:chr_file { read write };

# Use capabilities

allow dhcpd_t self:capability { net_raw net_bind_service };

dontaudit dhcpd_t self:capability  net_admin;

# Allow access to the dhcpd file types

type dhcp_state_t, file_type, sysadmfile;

type dhcpd_state_t, file_type, sysadmfile;

allow dhcpd_t dhcp_etc_t:file { read getattr };

allow dhcpd_t dhcp_etc_t:dir search;

file_type_auto_trans(dhcpd_t, dhcp_state_t, dhcpd_state_t, file)

rw_dir_create_file(dhcpd_t, dhcpd_state_t)

allow dhcpd_t etc_t:lnk_file read;

allow dhcpd_t { etc_t etc_runtime_t }:file r_file_perms;

# Allow dhcpd_t programs to execute themselves and bin_t (uname etc)

can_exec(dhcpd_t, { dhcpd_exec_t bin_t })

# Allow dhcpd_t to use packet sockets

allow dhcpd_t self:packet_socket create_socket_perms;

allow dhcpd_t self:rawip_socket create_socket_perms;

# allow to run utilities and scripts

allow dhcpd_t { bin_t sbin_t }:dir r_dir_perms;

allow dhcpd_t { bin_t sbin_t }:{ file lnk_file } rx_file_perms;

allow dhcpd_t self:fifo_file { read write getattr };

# allow reading /proc

allow dhcpd_t proc_t:{ file lnk_file } r_file_perms;

tmp_domain(dhcpd)

ifdef(`distro_gentoo', `

allow dhcpd_t self:capability { chown dac_override setgid setuid sys_chroot };

allow initrc_t dhcpd_state_t:file setattr;

')

r_dir_file(dhcpd_t, usr_t)

allow dhcpd_t { urandom_device_t random_device_t }:chr_file r_file_perms;

ifdef(`named.te', `

allow dhcpd_t { named_conf_t named_zone_t }:dir search;

allow dhcpd_t dnssec_t:file { getattr read };

')