procd: add shell functions to add instance data

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41481 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/system/procd/files/procd.sh

@@ -264,6 +264,17 @@ _procd_kill() {
 	_procd_ubus_call delete
 }
 
+procd_open_data() {
+	local name="$1"
+	json_set_namespace procd __procd_old_cb
+	json_add_object data
+}
+
+procd_close_data() {
+	json_close_object
+	json_set_namespace $__procd_old_cb
+}
+
 uci_validate_section()
 {
 	local _package="$1"