From f859cd11bd8b02bdfc17db69deefe0bf14add610 Mon Sep 17 00:00:00 2001
From: Peter Krummenacher <peter-ernst.krummenacher@bluewin.ch>
Date: Thu, 14 Jul 2022 11:38:11 +0200
Subject: [PATCH] rom_filter: support sub nodes outside of <inline>

Fixes #4560
---
 repos/os/src/server/rom_filter/README  | 4 ++++
 repos/os/src/server/rom_filter/main.cc | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/repos/os/src/server/rom_filter/README b/repos/os/src/server/rom_filter/README
index cfb64aee3e..c81d52e6b3 100644
--- a/repos/os/src/server/rom_filter/README
+++ b/repos/os/src/server/rom_filter/README
@@ -48,6 +48,10 @@ The '<output>' node can contain the following sub nodes:
   has an 'input' attribute, the content of the specified input is taken
   as attribute value.
 
+:'<node>':
+  Adds a sub node with the specified 'type'. The content of <node> is evaluated
+  to generate the content of the added sub node.
+
 
 Conditions
 ----------
diff --git a/repos/os/src/server/rom_filter/main.cc b/repos/os/src/server/rom_filter/main.cc
index c0cfdad1ef..922136b04e 100644
--- a/repos/os/src/server/rom_filter/main.cc
+++ b/repos/os/src/server/rom_filter/main.cc
@@ -321,6 +321,12 @@ void Rom_filter::Main::_evaluate_node(Xml_node node, Xml_generator &xml)
 			}
 		} else
 
+		if (node.has_type("node")) {
+			xml.node(node.attribute_value("type", Genode::String<128>()).string(), [&]() {
+					_evaluate_node(node, xml);
+			});
+		} else
+
 		if (node.has_type("inline")) {
 
 			node.with_raw_content([&] (char const *src, size_t len) {