policy_module(icinga2, 0.2.2)

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

## <desc>
## <p>
## Allow Icinga 2 to connect to all ports
## </p>
## </desc>
gen_tunable(icinga2_can_connect_all, false)

## <desc>
## <p>
## Allow Apache to connect to Icinga 2 API
## </p>
## </desc>
gen_tunable(httpd_can_connect_icinga2_api, true)

## <desc>
## <p>
## Allow Apache to write into Icinga 2 Commandpipe
## </p>
## </desc>
gen_tunable(httpd_can_write_icinga2_command, true)

## <desc>
## <p>
## Allow Icinga 2 to run plugins via sudo
## </p>
## </desc>
gen_tunable(icinga2_run_sudo, false)

require {
	type nagios_admin_plugin_t; type nagios_admin_plugin_exec_t;
	type nagios_checkdisk_plugin_t; type nagios_checkdisk_plugin_exec_t;
	type nagios_mail_plugin_t; type nagios_mail_plugin_exec_t;
	type nagios_services_plugin_t; type nagios_services_plugin_exec_t;
	type nagios_system_plugin_t; type nagios_system_plugin_exec_t;
	type nagios_unconfined_plugin_t; type nagios_unconfined_plugin_exec_t;
	type nagios_eventhandler_plugin_t; type nagios_eventhandler_plugin_exec_t;
	type nagios_openshift_plugin_t; type nagios_openshift_plugin_exec_t;
	type httpd_t; type system_mail_t;
	type redis_t; type redis_var_run_t; type redis_port_t;
	type devlog_t;
	role staff_r;
	attribute unreserved_port_type;
}

type icinga2_t;
type icinga2_exec_t;
init_daemon_domain(icinga2_t, icinga2_exec_t)

#permissive icinga2_t;

type icinga2_initrc_exec_t;
init_script_file(icinga2_initrc_exec_t)

type icinga2_unit_file_t;
systemd_unit_file(icinga2_unit_file_t)

type icinga2_etc_t;
files_config_file(icinga2_etc_t)

type icinga2_log_t;
logging_log_file(icinga2_log_t)

type icinga2_var_lib_t;
files_type(icinga2_var_lib_t)

type icinga2_var_run_t;
files_pid_file(icinga2_var_run_t)

type icinga2_command_t;
files_type(icinga2_command_t)

type icinga2_spool_t;
files_type(icinga2_spool_t)

type icinga2_cache_t;
files_type(icinga2_cache_t)

type icinga2_tmp_t;
files_tmp_file(icinga2_tmp_t)

type icinga2_port_t;
# There is no interface for unreserved_port_type
typeattribute icinga2_port_t unreserved_port_type;
corenet_port(icinga2_port_t)

########################################
#
# icinga2 local policy
#
allow icinga2_t self:capability { setgid setuid sys_resource kill };
allow icinga2_t self:process { setsched signal setrlimit };
allow icinga2_t self:fifo_file rw_fifo_file_perms;
allow icinga2_t self:unix_dgram_socket create_socket_perms;
allow icinga2_t self:unix_stream_socket create_stream_socket_perms;

allow icinga2_t icinga2_exec_t:file execute_no_trans;

list_dirs_pattern(icinga2_t, icinga2_etc_t, icinga2_etc_t)
read_files_pattern(icinga2_t, icinga2_etc_t, icinga2_etc_t)
read_lnk_files_pattern(icinga2_t, icinga2_etc_t, icinga2_etc_t)

manage_dirs_pattern(icinga2_t, icinga2_log_t, icinga2_log_t)
manage_files_pattern(icinga2_t, icinga2_log_t, icinga2_log_t)
manage_lnk_files_pattern(icinga2_t, icinga2_log_t, icinga2_log_t)
logging_log_filetrans(icinga2_t, icinga2_log_t, { dir file lnk_file })
logging_send_syslog_msg(icinga2_t)

manage_dirs_pattern(icinga2_t, icinga2_var_lib_t, icinga2_var_lib_t)
manage_files_pattern(icinga2_t, icinga2_var_lib_t, icinga2_var_lib_t)
manage_lnk_files_pattern(icinga2_t, icinga2_var_lib_t, icinga2_var_lib_t)
files_var_lib_filetrans(icinga2_t, icinga2_var_lib_t, { dir file lnk_file })

manage_dirs_pattern(icinga2_t, icinga2_var_run_t, icinga2_var_run_t)
manage_files_pattern(icinga2_t, icinga2_var_run_t, icinga2_var_run_t)
files_pid_filetrans(icinga2_t, icinga2_var_run_t, { dir file })

manage_dirs_pattern(icinga2_t, icinga2_command_t, icinga2_command_t)
manage_files_pattern(icinga2_t, icinga2_command_t, icinga2_command_t)
manage_fifo_files_pattern(icinga2_t, icinga2_command_t, icinga2_command_t)

manage_dirs_pattern(icinga2_t, icinga2_spool_t, icinga2_spool_t)
manage_files_pattern(icinga2_t, icinga2_spool_t, icinga2_spool_t)
files_spool_filetrans(icinga2_t, icinga2_spool_t, { dir file })

manage_dirs_pattern(icinga2_t, icinga2_cache_t, icinga2_cache_t)
manage_files_pattern(icinga2_t, icinga2_cache_t, icinga2_cache_t)

manage_files_pattern(icinga2_t, icinga2_tmp_t, icinga2_tmp_t)
manage_dirs_pattern(icinga2_t, icinga2_tmp_t, icinga2_tmp_t)
files_tmp_filetrans(icinga2_t, icinga2_tmp_t, { dir file })

domain_use_interactive_fds(icinga2_t)

files_read_etc_files(icinga2_t)

auth_use_nsswitch(icinga2_t)

miscfiles_read_localization(icinga2_t)

corecmd_exec_shell(icinga2_t)
corecmd_exec_bin(icinga2_t)

kernel_read_system_state(icinga2_t)
kernel_read_network_state(icinga2_t)
kernel_dgram_send(icinga2_t)

# should be moved to nagios_plugin_template in nagios.if
icinga2_execstrans(nagios_admin_plugin_exec_t, nagios_admin_plugin_t)
icinga2_execstrans(nagios_checkdisk_plugin_exec_t, nagios_checkdisk_plugin_t)
icinga2_execstrans(nagios_mail_plugin_exec_t, nagios_mail_plugin_t)
icinga2_execstrans(nagios_services_plugin_exec_t, nagios_services_plugin_t)
icinga2_execstrans(nagios_system_plugin_exec_t, nagios_system_plugin_t)
icinga2_execstrans(nagios_unconfined_plugin_exec_t, nagios_unconfined_plugin_t)
icinga2_execstrans(nagios_eventhandler_plugin_exec_t, nagios_eventhandler_plugin_t)
icinga2_execstrans(nagios_openshift_plugin_exec_t, nagios_openshift_plugin_t)

# should be moved nagios.te
nagios_plugin_template(notification)
icinga2_execstrans(nagios_notification_plugin_exec_t, nagios_notification_plugin_t)
allow nagios_notification_plugin_t icinga2_etc_t:dir search;
allow nagios_notification_plugin_t nagios_notification_plugin_exec_t:dir search;
#permissive nagios_notification_plugin_t;
corecmd_exec_bin(nagios_notification_plugin_t)
hostname_exec(nagios_notification_plugin_t)
type nagios_notification_plugin_tmp_t;
files_tmp_file(nagios_notification_plugin_tmp_t)
manage_files_pattern(nagios_notification_plugin_t, nagios_notification_plugin_tmp_t, nagios_notification_plugin_tmp_t)
manage_dirs_pattern(nagios_notification_plugin_t, nagios_notification_plugin_tmp_t, nagios_notification_plugin_tmp_t)
files_tmp_filetrans(nagios_notification_plugin_t, nagios_notification_plugin_tmp_t, { dir file })
fs_dontaudit_getattr_xattr_fs(nagios_notification_plugin_t)
optional_policy(`
        mta_send_mail(nagios_notification_plugin_t)
')
icinga2_dontaudit_leaks_fifo(system_mail_t)
# direct smtp notification
corenet_tcp_connect_smtp_port(nagios_notification_plugin_t)
# hipsaint notification
auth_read_passwd(nagios_notification_plugin_t)
sysnet_read_config(nagios_notification_plugin_t)
allow nagios_notification_plugin_t self:udp_socket create_stream_socket_perms;
allow nagios_notification_plugin_t self:tcp_socket create_stream_socket_perms;
allow nagios_notification_plugin_t self:netlink_route_socket create_netlink_socket_perms;
corenet_tcp_connect_http_port(nagios_notification_plugin_t)
miscfiles_read_generic_certs(nagios_notification_plugin_t)

allow icinga2_t icinga2_port_t:tcp_socket name_bind;
allow icinga2_t self:tcp_socket create_stream_socket_perms;
corenet_tcp_connect_icinga2_port(icinga2_t)

mysql_stream_connect(icinga2_t)
mysql_tcp_connect(icinga2_t)
postgresql_stream_connect(icinga2_t)
postgresql_tcp_connect(icinga2_t)

# graphite is using port 2003 which is lmtp_port_t
corenet_tcp_connect_lmtp_port(icinga2_t)

# Allow icinga2 to connect to redis using unix domain sockets
stream_connect_pattern(icinga2_t, redis_var_run_t, redis_var_run_t, redis_t)

# Just like `redis_tcp_connect(icinga2_t)`, though this interface does not exist on Amazon Linux 2
corenet_tcp_recvfrom_labeled(icinga2_t, redis_t)
corenet_tcp_sendrecv_redis_port(icinga2_t)
corenet_tcp_connect_redis_port(icinga2_t)

# This is for other feature that do not use a confined port
# or if you run one one with a non standard port.
tunable_policy(`icinga2_can_connect_all',`
	corenet_tcp_connect_all_ports(icinga2_t)
')

# This is for plugins requiring to be executed via sudo
tunable_policy(`icinga2_run_sudo',`
    allow icinga2_t self:capability { audit_write net_admin };
    allow icinga2_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };
    allow icinga2_t devlog_t:sock_file write;

    init_read_utmp(icinga2_t)

    auth_domtrans_chkpwd(icinga2_t)
    allow icinga2_t chkpwd_t:process { noatsecure rlimitinh siginh };

    selinux_compute_access_vector(icinga2_t)

    dbus_send_system_bus(icinga2_t)
    dbus_stream_connect_system_dbusd(icinga2_t)
    systemd_dbus_chat_logind(icinga2_t)
    # Without this it works but is very slow
    systemd_write_inherited_logind_sessions_pipes(icinga2_t)
')

optional_policy(`
    tunable_policy(`icinga2_run_sudo',`
        sudo_exec(icinga2_t)
    ')
')



########################################
#
# Icinga Webinterfaces
#

optional_policy(`
	# should be a boolean in apache-policy
	tunable_policy(`httpd_can_write_icinga2_command',`
		icinga2_send_commands(httpd_t)
	')
')

optional_policy(`
	# should be a boolean in apache-policy
	tunable_policy(`httpd_can_connect_icinga2_api',`
		corenet_tcp_connect_icinga2_port(httpd_t)
	')
')

########################################
#
# Icinga2 Admin Role
#

role icinga2adm_r;
userdom_unpriv_user_template(icinga2adm)

icinga2_admin(icinga2adm_t, icinga2adm_r)

allow icinga2adm_t self:capability { dac_read_search dac_override };

# should be moved to staff.te
icinga2adm_role_change(staff_r)

# should be moved to nagios_plugin_template in nagios.if
icinga2adm_execstrans(nagios_admin_plugin_exec_t, nagios_admin_plugin_t)
icinga2adm_execstrans(nagios_checkdisk_plugin_exec_t, nagios_checkdisk_plugin_t)
icinga2adm_execstrans(nagios_mail_plugin_exec_t, nagios_mail_plugin_t)
icinga2adm_execstrans(nagios_services_plugin_exec_t, nagios_services_plugin_t)
icinga2adm_execstrans(nagios_system_plugin_exec_t, nagios_system_plugin_t)
icinga2adm_execstrans(nagios_unconfined_plugin_exec_t, nagios_unconfined_plugin_t)
icinga2adm_execstrans(nagios_eventhandler_plugin_exec_t, nagios_eventhandler_plugin_t)
icinga2adm_execstrans(nagios_openshift_plugin_exec_t, nagios_openshift_plugin_t)
icinga2adm_execstrans(nagios_notification_plugin_exec_t, nagios_notification_plugin_t)