## <summary>Net Saint / NAGIOS - network monitoring server</summary>

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

## <summary>

##	Create a set of derived types for various

##	nagios plugins,

## </summary>

## <param name="plugins_group_name">

##	<summary>

##	The name to be used for deriving type names.

##	</summary>

## </param>

#

template(`nagios_plugin_template',`

	gen_require(`

		attribute nagios_plugin_domain;

		type nagios_t, nrpe_t;

	')

	type nagios_$1_plugin_t, nagios_plugin_domain;

	type nagios_$1_plugin_exec_t;

	application_domain(nagios_$1_plugin_t, nagios_$1_plugin_exec_t)

	role system_r types nagios_$1_plugin_t;

	domtrans_pattern(nrpe_t, nagios_$1_plugin_exec_t, nagios_$1_plugin_t)

	allow nagios_t nagios_$1_plugin_exec_t:file ioctl; 

	# needed by command.cfg

	domtrans_pattern(nagios_t, nagios_$1_plugin_exec_t, nagios_$1_plugin_t)

	kernel_read_system_state(nagios_$1_plugin_t)

')

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

## <summary>

## Execute the nagios unconfined plugins with

## a domain transition.

## </summary>

## <param name="domain">

## <summary>

## Domain allowed access.

## </summary>

## </param>

#

interface(`nagios_domtrans_unconfined_plugins',`

   gen_require(`

        type nagios_unconfined_plugin_t;

        type nagios_unconfined_plugin_exec_t;

   ')

    domtrans_pattern($1, nagios_unconfined_plugin_exec_t, nagios_unconfined_plugin_t)

')

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

## <summary>

##	Do not audit attempts to read or write nagios

##	unnamed pipes.

## </summary>

## <param name="domain">

##	<summary>

##	Domain to not audit.

##	</summary>

## </param>

#

interface(`nagios_dontaudit_rw_pipes',`

	gen_require(`

		type nagios_t;

	')

	dontaudit $1 nagios_t:fifo_file rw_fifo_file_perms;

')

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

## <summary>

##	Allow the specified domain to read

##	nagios configuration files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <rolecap/>

#

interface(`nagios_read_config',`

	gen_require(`

		type nagios_etc_t;

	')

	allow $1 nagios_etc_t:dir list_dir_perms;

	allow $1 nagios_etc_t:file read_file_perms;

	files_search_etc($1)

')

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

## <summary>

##	Read nagios lib files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_read_lib',`

	gen_require(`

		type nagios_var_lib_t;

	')

	files_search_var($1)

    list_dirs_pattern($1, nagios_var_lib_t, nagios_var_lib_t)

	read_files_pattern($1, nagios_var_lib_t, nagios_var_lib_t)

')

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

## <summary>

##	Read nagios logs.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_read_log',`

	gen_require(`

		type nagios_log_t;

	')

	logging_search_logs($1)

	read_files_pattern($1, nagios_log_t, nagios_log_t)

')

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

## <summary>

##	Do not audit attempts to read or write nagios logs.

## </summary>

## <param name="domain">

##	<summary>

##	Domain to not audit.

##	</summary>

## </param>

#

interface(`nagios_dontaudit_rw_log',`

	gen_require(`

		type nagios_log_t;

	')

	dontaudit $1 nagios_log_t:file rw_file_perms;

')

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

## <summary>

##	Search nagios spool directories.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_search_spool',`

	gen_require(`

		type nagios_spool_t;

	')

	allow $1 nagios_spool_t:dir search_dir_perms;

	files_search_spool($1)

')

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

## <summary>

##	Append nagios spool files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_append_spool',`

	gen_require(`

		type nagios_spool_t;

	')

	allow $1 nagios_spool_t:file append_file_perms;

	files_search_spool($1)

')

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

## <summary>

##	Allow the specified domain to read

##	nagios temporary files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_read_tmp_files',`

	gen_require(`

		type nagios_tmp_t;

	')

	allow $1 nagios_tmp_t:file read_file_perms;

	files_search_tmp($1)

')

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

## <summary>

##	Allow the specified domain to read

##	nagios temporary files.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

interface(`nagios_rw_inerited_tmp_files',`

	gen_require(`

		type nagios_tmp_t;

	')

	allow $1 nagios_tmp_t:file rw_inherited_file_perms;

	files_search_tmp($1)

')

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

## <summary>

##	Execute the nagios NRPE with

##	a domain transition.

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed to transition.

##	</summary>

## </param>

#

interface(`nagios_domtrans_nrpe',`

	gen_require(`

		type nrpe_t, nrpe_exec_t;

	')

	domtrans_pattern($1, nrpe_exec_t, nrpe_t)

')

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

## <summary>

## Do not audit attempts to write nrpe daemon unnamed pipes.

## </summary>

## <param name="domain">

## <summary>

## Domain allowed access.

## </summary>

## </param>

#

interface(`nagios_dontaudit_write_pipes_nrpe',`

 gen_require(`

                type nrpe_t;

        ')

        dontaudit $1 nrpe_t:fifo_file write;

')

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

## <summary>

##	All of the rules required to administrate

##	an nagios environment

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

## <param name="role">

##	<summary>

##	The role to be allowed to manage the nagios domain.

##	</summary>

## </param>

## <rolecap/>

#

interface(`nagios_admin',`

	gen_require(`

		type nagios_t, nrpe_t, nagios_initrc_exec_t;

		type nagios_tmp_t, nagios_log_t, nagios_var_run_t;

		type nagios_etc_t, nrpe_etc_t, nagios_spool_t;

	')

	allow $1 nagios_t:process signal_perms;

	ps_process_pattern($1, nagios_t)

	tunable_policy(`deny_ptrace',`',`

		allow $1 nagios_t:process ptrace;

	')

	init_labeled_script_domtrans($1, nagios_initrc_exec_t)

	domain_system_change_exemption($1)

	role_transition $2 nagios_initrc_exec_t system_r;

	allow $2 system_r;

	files_list_tmp($1)

	admin_pattern($1, nagios_tmp_t)

	logging_list_logs($1)

	admin_pattern($1, nagios_log_t)

	files_list_etc($1)

	admin_pattern($1, nagios_etc_t)

	files_list_spool($1)

	admin_pattern($1, nagios_spool_t)

	files_list_pids($1)

	admin_pattern($1, nagios_var_run_t)

	admin_pattern($1, nrpe_etc_t)

')

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

## <summary>

##      Send a null signal to nagios_unconfined_plugin.

## </summary>

## <param name="domain">

##      <summary>

##      Domain allowed access.

##      </summary>

## </param>

#

interface(`nagios_unconfined_signull',`

	gen_require(`

		type nagios_unconfined_plugin_t;

	')

	allow $1 nagios_unconfined_plugin_t:process signull;

')

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

# 

# Nagios interface compatibility blocks

#

# The following definitions ensure compatibility with distribution policy

# versions that do not contain given interfaces (epel, or older Fedora

# releases).

# Each block tests for existence of given interface and defines it if needed.

#

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

## <summary>

##	Allow caller to signull sssd.

##	Backport from RHEL8

## </summary>

## <param name="domain">

##	<summary>

##	Domain allowed access.

##	</summary>

## </param>

#

ifndef(`sssd_signull',`

	interface(`sssd_signull',`

		gen_require(`

			type sssd_t;

		')

		allow $1 sssd_t:process signull;

	')

')