bind.if

## <summary>Berkeley Internet name domain DNS server.</summary>

########################################
## <summary>
##	Execute bind server in the bind domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`bind_initrc_domtrans',`
	gen_require(`
		type named_initrc_exec_t;
	')

	init_labeled_script_domtrans($1, named_initrc_exec_t)
')

########################################
## <summary>
##	Execute bind server in the bind domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`bind_systemctl',`
	gen_require(`
		type named_unit_file_t;
		type named_t;
	')

	systemd_exec_systemctl($1)
	init_reload_services($1)
	allow $1 named_unit_file_t:file read_file_perms;
	allow $1 named_unit_file_t:service manage_service_perms;

	ps_process_pattern($1, named_t)
')

########################################
## <summary>
##	Execute ndc in the ndc domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`bind_domtrans_ndc',`
	gen_require(`
		type ndc_t, ndc_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, ndc_exec_t, ndc_t)
')

########################################
## <summary>
##	Send generic signals to bind.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_signal',`
	gen_require(`
		type named_t;
	')

	allow $1 named_t:process signal;
')

########################################
## <summary>
##	Send null signals to bind.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_signull',`
	gen_require(`
		type named_t;
	')

	allow $1 named_t:process signull;
')

########################################
## <summary>
##	Send kill signals to bind.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_kill',`
	gen_require(`
		type named_t;
	')

	allow $1 named_t:process sigkill;
')

########################################
## <summary>
##	Execute ndc in the ndc domain, and
##	allow the specified role the ndc domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`bind_run_ndc',`
	gen_require(`
		attribute_role ndc_roles;
	')

	bind_domtrans_ndc($1)
	roleattribute $2 ndc_roles;
')

########################################
## <summary>
##	Execute bind in the named domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`bind_domtrans',`
	gen_require(`
		type named_t, named_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, named_exec_t, named_t)
')

########################################
## <summary>
##	Read dnssec key files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_read_dnssec_keys',`
	gen_require(`
		type named_conf_t, named_zone_t, dnssec_t;
	')

	read_files_pattern($1, { named_conf_t named_zone_t }, dnssec_t)
')

########################################
## <summary>
##	Read bind named configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_read_config',`
	gen_require(`
		type named_conf_t;
	')

	allow $1 named_conf_t:dir  list_dir_perms;
	read_files_pattern($1, named_conf_t, named_conf_t)
')

########################################
## <summary>
##	Write bind named configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_write_config',`
	gen_require(`
		type named_conf_t;
	')

	write_files_pattern($1, named_conf_t, named_conf_t)
	allow $1 named_conf_t:file setattr_file_perms;
')

########################################
## <summary>
##	Create, read, write, and delete
##	bind configuration directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_manage_config_dirs',`
	gen_require(`
		type named_conf_t;
	')

	manage_dirs_pattern($1, named_conf_t, named_conf_t)
')

########################################
## <summary>
##	Create, read, write, and delete
##	BIND configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_manage_config',`
	gen_require(`
		type named_conf_t;
	')

	manage_files_pattern($1, named_conf_t, named_conf_t)
')

########################################
## <summary>
##	Search bind cache directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_search_cache',`
	gen_require(`
		type named_conf_t, named_cache_t, named_zone_t;
	')

	files_search_var($1)
	allow $1 named_conf_t:dir search_dir_perms;
	allow $1 named_zone_t:dir search_dir_perms;
	allow $1 named_cache_t:dir search_dir_perms;
')

########################################
## <summary>
##	Create, read, write, and delete
##	bind cache files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_manage_cache',`
	gen_require(`
		type named_cache_t, named_zone_t;
	')

	files_search_var($1)
	allow $1 named_zone_t:dir search_dir_perms;
	manage_files_pattern($1, named_cache_t, named_cache_t)
	manage_lnk_files_pattern($1, named_cache_t, named_cache_t)
')

########################################
## <summary>
##	Set attributes of bind pid directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_setattr_pid_dirs',`
	gen_require(`
		type named_var_run_t;
	')

	allow $1 named_var_run_t:dir setattr_dir_perms;
')

########################################
## <summary>
##	Set attributes of bind zone directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_setattr_zone_dirs',`
	gen_require(`
		type named_zone_t;
	')

	allow $1 named_zone_t:dir setattr_dir_perms;
')

########################################
## <summary>
##	Read bind zone files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_read_zone',`
	gen_require(`
		type named_zone_t;
	')

	files_search_var($1)
	read_files_pattern($1, named_zone_t, named_zone_t)
')

########################################
## <summary>
##	Read BIND zone files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_read_log',`
	gen_require(`
		type named_zone_t;
		type named_log_t;
	')

	files_search_var($1)
	allow $1 named_zone_t:dir search_dir_perms;
	read_files_pattern($1, named_log_t, named_log_t)
')

########################################
## <summary>
##	Create, read, write, and delete
##	bind zone files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_manage_zone_dirs',`
	gen_require(`
		type named_zone_t;
	')

	files_search_var($1)
	allow $1  named_zone_t:dir manage_dir_perms;
')

########################################
## <summary>
##	Create, read, write, and delete
##	bind zone files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_manage_zone',`
	gen_require(`
		type named_zone_t;
	')

	files_search_var($1)
	manage_files_pattern($1, named_zone_t, named_zone_t)
')

########################################
## <summary>
##	Send and receive datagrams to and from named.  (Deprecated)
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_udp_chat_named',`
	refpolicywarn(`$0($*) has been deprecated.')
')

########################################
## <summary>
##	Allow the domain to read bind state files in /proc.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`bind_read_state',`
	gen_require(`
		type named_t;
	')

	kernel_search_proc($1)
	ps_process_pattern($1, named_t)
')

########################################
## <summary>
##	All of the rules required to
##	administrate an bind environment.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`bind_admin',`
	gen_require(`
		type named_t, named_tmp_t, named_log_t;
		type named_cache_t, named_zone_t, named_initrc_exec_t;
		type dnssec_t, ndc_t, named_conf_t, named_var_run_t;
		type named_keytab_t, named_unit_file_t;
	')

	allow $1 named_t:process signal_perms;
	ps_process_pattern($1, named_t)

	tunable_policy(`deny_ptrace',`',`
		allow $1 named_t:process ptrace;
	')

	bind_run_ndc($1, $2)

	init_labeled_script_domtrans($1, named_initrc_exec_t)
	domain_system_change_exemption($1)
	role_transition $2 named_initrc_exec_t system_r;
	allow $2 system_r;

	files_list_tmp($1)
	admin_pattern($1, named_tmp_t)

	logging_list_logs($1)
	admin_pattern($1, named_log_t)

	files_list_etc($1)
	admin_pattern($1, { named_keytab_t named_conf_t })

	admin_pattern($1, named_keytab_t)

	files_list_var($1)
	admin_pattern($1, { dnssec_t named_cache_t named_zone_t })

	files_list_pids($1)
	admin_pattern($1, named_var_run_t)

	admin_pattern($1, named_unit_file_t)
	bind_systemctl($1)
	allow $1 named_unit_file_t:service all_service_perms;
')