policy_module(nut, 1.0.1)

########################################
#
# Declarations
#

type nut_conf_t;
files_config_file(nut_conf_t)

type nut_upsd_t;
type nut_upsd_exec_t;
init_daemon_domain(nut_upsd_t, nut_upsd_exec_t)

type nut_upsmon_t;
type nut_upsmon_exec_t;
init_daemon_domain(nut_upsmon_t, nut_upsmon_exec_t)

type nut_upsdrvctl_t;
type nut_upsdrvctl_exec_t;
init_daemon_domain(nut_upsdrvctl_t, nut_upsdrvctl_exec_t)

type nut_var_run_t;
files_pid_file(nut_var_run_t)

########################################
#
# Local policy for upsd
#

allow nut_upsd_t self:capability { setgid setuid dac_override };

allow nut_upsd_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsd_t self:tcp_socket connected_stream_socket_perms;

allow nut_upsd_t nut_upsdrvctl_t:unix_stream_socket connectto;

read_files_pattern(nut_upsd_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
manage_sock_files_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsd_t, nut_var_run_t, { file sock_file })

kernel_read_kernel_sysctls(nut_upsd_t)

corenet_tcp_bind_ups_port(nut_upsd_t)
corenet_tcp_bind_generic_port(nut_upsd_t)
corenet_tcp_bind_all_nodes(nut_upsd_t)

files_read_usr_files(nut_upsd_t)

auth_use_nsswitch(nut_upsd_t)

logging_send_syslog_msg(nut_upsd_t)

miscfiles_read_localization(nut_upsd_t)

########################################
#
# Local policy for upsmon
#

allow nut_upsmon_t self:capability { dac_override dac_read_search setgid setuid };
allow nut_upsmon_t self:fifo_file rw_fifo_file_perms;
allow nut_upsmon_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsmon_t self:tcp_socket create_socket_perms;

read_files_pattern(nut_upsmon_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsmon_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsmon_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsmon_t, nut_var_run_t, file)

kernel_read_kernel_sysctls(nut_upsmon_t)
kernel_read_system_state(nut_upsmon_t)

corecmd_exec_bin(nut_upsmon_t)
corecmd_exec_shell(nut_upsmon_t)

corenet_tcp_connect_ups_port(nut_upsmon_t)
corenet_tcp_connect_generic_port(nut_upsmon_t)

# Creates /etc/killpower
files_manage_etc_runtime_files(nut_upsmon_t)
files_etc_filetrans_etc_runtime(nut_upsmon_t, file)
files_search_usr(nut_upsmon_t)

# /usr/bin/wall
term_write_all_terms(nut_upsmon_t)

# upsmon runs shutdown, probably need a shutdown domain
init_rw_utmp(nut_upsmon_t)
init_telinit(nut_upsmon_t)

logging_send_syslog_msg(nut_upsmon_t)

auth_use_nsswitch(nut_upsmon_t)

miscfiles_read_localization(nut_upsmon_t)

mta_send_mail(nut_upsmon_t)

########################################
#
# Local policy for upsdrvctl
#

allow nut_upsdrvctl_t self:capability { dac_override kill setgid setuid };
allow nut_upsdrvctl_t self:process { sigchld signal signull };
allow nut_upsdrvctl_t self:fd use;
allow nut_upsdrvctl_t self:fifo_file rw_fifo_file_perms;
allow nut_upsdrvctl_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsdrvctl_t self:udp_socket create_socket_perms;

read_files_pattern(nut_upsdrvctl_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
manage_sock_files_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsdrvctl_t, nut_var_run_t, { file sock_file })

kernel_read_kernel_sysctls(nut_upsdrvctl_t)

# /sbin/upsdrvctl executes other drivers
corecmd_exec_bin(nut_upsdrvctl_t)

dev_read_urand(nut_upsdrvctl_t)
dev_rw_generic_usb_dev(nut_upsdrvctl_t)

term_use_unallocated_ttys(nut_upsdrvctl_t)

auth_use_nsswitch(nut_upsdrvctl_t)

init_sigchld(nut_upsdrvctl_t)

logging_send_syslog_msg(nut_upsdrvctl_t)

miscfiles_read_localization(nut_upsdrvctl_t)

#######################################
#
# Local policy for upscgi scripts
# requires httpd_enable_cgi and httpd_can_network_connect
#

optional_policy(`
	apache_content_template(nutups_cgi)

	read_files_pattern(httpd_nutups_cgi_script_t, nut_conf_t, nut_conf_t)

	corenet_all_recvfrom_unlabeled(httpd_nutups_cgi_script_t)
	corenet_all_recvfrom_netlabel(httpd_nutups_cgi_script_t)
	corenet_tcp_sendrecv_generic_if(httpd_nutups_cgi_script_t)
	corenet_tcp_sendrecv_generic_node(httpd_nutups_cgi_script_t)
	corenet_tcp_sendrecv_all_ports(httpd_nutups_cgi_script_t)
	corenet_tcp_connect_ups_port(httpd_nutups_cgi_script_t)
	corenet_udp_sendrecv_generic_if(httpd_nutups_cgi_script_t)
	corenet_udp_sendrecv_generic_node(httpd_nutups_cgi_script_t)
	corenet_udp_sendrecv_all_ports(httpd_nutups_cgi_script_t)

	sysnet_dns_name_resolve(httpd_nutups_cgi_script_t)
')