selinux-policy/refpolicy/policy/modules/services/bind.if

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

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

	domain_auto_trans($1,ndc_exec_t,ndc_t)

	allow $1 ndc_t:fd use;
	allow ndc_t $1:fd use;
	allow ndc_t $1:fifo_file rw_file_perms;
	allow ndc_t $1:process sigchld;
')

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

	allow $1 named_t:process signal;
')

########################################
## <summary>
##	Execute ndc in the ndc domain, and
##	allow the specified role the ndc domain.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
## <param name="role">
##	The role to be allowed the bind domain.
## </param>
## <param name="terminal">
##	The type of the terminal allow the bind domain to use.
## </param>
#
interface(`bind_run_ndc',`
	gen_require(`
		type ndc_t;
	')

	bind_domtrans_ndc($1)
	role $2 types ndc_t;
	allow ndc_t $3:chr_file rw_term_perms;
')

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

	domain_auto_trans($1,named_exec_t,named_t)

	allow $1 named_t:fd use;
	allow named_t $1:fd use;
	allow named_t $1:fifo_file rw_file_perms;
	allow named_t $1:process sigchld;
')

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

	allow $1 { named_conf_t named_zone_t }:dir search;
	allow $1 dnssec_t:file { getattr read };
')

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

	allow $1 named_conf_t:dir search;
	allow $1 named_conf_t:file { getattr read };
')

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

	allow $1 named_conf_t:dir search;
	allow $1 named_conf_t:file { write setattr };
')

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

	allow $1 named_conf_t:dir create_dir_perms;
')

########################################
## <summary>
##	Search the BIND cache directory.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </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">
##	Domain allowed access.
## </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;
	allow $1 named_cache_t:dir rw_dir_perms;
	allow $1 named_cache_t:file create_file_perms;
	allow $1 named_cache_t:lnk_file create_lnk_perms;
')

########################################
## <summary>
##	Do not audit attempts to set the attributes
##	of the BIND pid directory.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`bind_setattr_pid_dirs',`
	gen_require(`
		type named_var_run_t;
	')

	allow $1 named_var_run_t:dir setattr;
')

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

	files_search_var($1)
	allow $1 named_zone_t:dir search_dir_perms;
	allow $1 named_zone_t:file r_file_perms;
')