policy_module(nagios, 1.6.0)

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

type nagios_t;
type nagios_exec_t;
init_daemon_domain(nagios_t, nagios_exec_t)

type nagios_cgi_t;
type nagios_cgi_exec_t;
init_system_domain(nagios_cgi_t, nagios_cgi_exec_t)

type nagios_etc_t;
files_config_file(nagios_etc_t)

type nagios_log_t;
logging_log_file(nagios_log_t)

type nagios_tmp_t;
files_tmp_file(nagios_tmp_t)

type nagios_var_run_t;
files_pid_file(nagios_var_run_t)

type nrpe_t;
type nrpe_exec_t;
init_daemon_domain(nrpe_t, nrpe_exec_t)

type nrpe_etc_t;
files_config_file(nrpe_etc_t)

########################################
#
# Nagios local policy
#

allow nagios_t self:capability { dac_override setgid setuid };
dontaudit nagios_t self:capability sys_tty_config;
allow nagios_t self:process { setpgid signal_perms };
allow nagios_t self:fifo_file rw_file_perms;
allow nagios_t self:tcp_socket create_stream_socket_perms;
allow nagios_t self:udp_socket create_socket_perms;

read_files_pattern(nagios_t, nagios_etc_t, nagios_etc_t)
read_lnk_files_pattern(nagios_t, nagios_etc_t, nagios_etc_t)
allow nagios_t nagios_etc_t:dir list_dir_perms;

manage_files_pattern(nagios_t, nagios_log_t, nagios_log_t)
manage_fifo_files_pattern(nagios_t, nagios_log_t, nagios_log_t)
logging_log_filetrans(nagios_t, nagios_log_t, { file dir })

manage_dirs_pattern(nagios_t, nagios_tmp_t, nagios_tmp_t)
manage_files_pattern(nagios_t, nagios_tmp_t, nagios_tmp_t)
files_tmp_filetrans(nagios_t, nagios_tmp_t, { file dir })

manage_files_pattern(nagios_t, nagios_var_run_t, nagios_var_run_t)
files_pid_filetrans(nagios_t, nagios_var_run_t, file)

kernel_read_system_state(nagios_t)
kernel_read_kernel_sysctls(nagios_t)

corecmd_exec_bin(nagios_t)
corecmd_exec_shell(nagios_t)

corenet_all_recvfrom_unlabeled(nagios_t)
corenet_all_recvfrom_netlabel(nagios_t)
corenet_tcp_sendrecv_generic_if(nagios_t)
corenet_udp_sendrecv_generic_if(nagios_t)
corenet_tcp_sendrecv_all_nodes(nagios_t)
corenet_udp_sendrecv_all_nodes(nagios_t)
corenet_tcp_sendrecv_all_ports(nagios_t)
corenet_udp_sendrecv_all_ports(nagios_t)
corenet_tcp_connect_all_ports(nagios_t)

dev_read_sysfs(nagios_t)
dev_read_urand(nagios_t)

domain_use_interactive_fds(nagios_t)
# for ps
domain_read_all_domains_state(nagios_t)

files_read_etc_files(nagios_t)
files_read_etc_runtime_files(nagios_t)
files_read_kernel_symbol_table(nagios_t)

fs_getattr_all_fs(nagios_t)
fs_search_auto_mountpoints(nagios_t)

# for who
init_read_utmp(nagios_t)

auth_use_nsswitch(nagios_t)

logging_send_syslog_msg(nagios_t)

miscfiles_read_localization(nagios_t)

userdom_dontaudit_use_unpriv_user_fds(nagios_t)

mta_send_mail(nagios_t)

sysadm_dontaudit_search_home_dirs(nagios_t)

optional_policy(`
	netutils_domtrans_ping(nagios_t)
	netutils_signal_ping(nagios_t)
	netutils_kill_ping(nagios_t)
')

optional_policy(`
	seutil_sigchld_newrole(nagios_t)
')

optional_policy(`
	udev_read_db(nagios_t)
')

# cjp: leaked file descriptors:
# for open file handles
#dontaudit system_mail_t nagios_etc_t:file read;
#dontaudit system_mail_t nagios_log_t:fifo_file read;

########################################
#
# Nagios CGI local policy
#

allow nagios_cgi_t self:process signal_perms;
allow nagios_cgi_t self:fifo_file rw_fifo_file_perms;

read_files_pattern(nagios_cgi_t, nagios_t, nagios_t)
read_lnk_files_pattern(nagios_cgi_t, nagios_t, nagios_t)

allow nagios_cgi_t nagios_etc_t:dir list_dir_perms;
read_files_pattern(nagios_cgi_t, nagios_etc_t, nagios_etc_t)
read_lnk_files_pattern(nagios_cgi_t, nagios_etc_t, nagios_etc_t)

allow nagios_cgi_t nagios_log_t:dir list_dir_perms;
read_files_pattern(nagios_cgi_t, nagios_etc_t, nagios_log_t)
read_lnk_files_pattern(nagios_cgi_t, nagios_etc_t, nagios_log_t)

kernel_read_system_state(nagios_cgi_t)

corecmd_exec_bin(nagios_cgi_t)

domain_dontaudit_read_all_domains_state(nagios_cgi_t)

files_read_etc_files(nagios_cgi_t)
files_read_etc_runtime_files(nagios_cgi_t)
files_read_kernel_symbol_table(nagios_cgi_t)

logging_send_syslog_msg(nagios_cgi_t)
logging_search_logs(nagios_cgi_t)

miscfiles_read_localization(nagios_cgi_t)

optional_policy(`
	apache_append_log(nagios_cgi_t)
')

########################################
#
# Nagios remote plugin executor local policy
#

dontaudit nrpe_t self:capability sys_tty_config;
allow nrpe_t self:process { setpgid signal_perms };
allow nrpe_t self:fifo_file rw_fifo_file_perms;

allow nrpe_t nrpe_etc_t:file read_file_perms;
files_search_etc(nrpe_t)

kernel_read_system_state(nrpe_t)
kernel_read_kernel_sysctls(nrpe_t)

corecmd_exec_bin(nrpe_t)
corecmd_exec_shell(nrpe_t)

dev_read_sysfs(nrpe_t)
dev_read_urand(nrpe_t)

domain_use_interactive_fds(nrpe_t)

files_read_etc_runtime_files(nrpe_t)

fs_search_auto_mountpoints(nrpe_t)

logging_send_syslog_msg(nrpe_t)

miscfiles_read_localization(nrpe_t)

userdom_dontaudit_use_unpriv_user_fds(nrpe_t)

optional_policy(`
	inetd_tcp_service_domain(nrpe_t, nrpe_exec_t)
')

optional_policy(`
        seutil_sigchld_newrole(nrpe_t)
')

optional_policy(`
	tcpd_wrapped_domain(nrpe_t, nrpe_exec_t)
')

optional_policy(`
        udev_read_db(nrpe_t)
')