ntpd: add support for configuring ntp pools

net/ntpd/files/ntpd.init

@@ -21,6 +21,7 @@ emit() {
 validate_ntp_section() {
 	uci_load_validate system timeserver "$1" "$2" \
 		'server:list(host)' 'enabled:bool:1' 'enable_server:bool:0' \
+		'pool:list(host)' \
 		'interface:list(string)'
 }
 
@@ -34,7 +35,7 @@ start_ntpd_instance() {
 
 	[ "$enabled" = 0 ] && return
 
-	[ -z "$server" -a "$enable_server" = 0 ] && return
+	[ -z "$server" -a -z "$pool" -a "$enable_server" = 0 ] && return
 
 	# not sure that the interfaces enumerated should be validated,
 	# since some of them might be dynamic interfaces (like IPsec
@@ -73,6 +74,11 @@ start_ntpd_instance() {
 		emit "server $i iburst"
 	done
 
+	for i in $pool
+	do
+		emit "pool $i iburst"
+	done
+
 	mkdir -p /var/lib/ntp
 	chown -R ntp:ntp /var/lib/ntp