From aace55b739f03f5e84c7dffc26b977ff7b86d6b5 Mon Sep 17 00:00:00 2001
From: kettenis <kettenis@openbsd.org>
Date: Sun, 14 Jul 2019 14:40:55 +0000
Subject: [PATCH] Add interface to set/update a data property.

---
 usr.sbin/ldomctl/mdesc.c | 17 ++++++++++++++++-
 usr.sbin/ldomctl/mdesc.h |  4 +++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/ldomctl/mdesc.c b/usr.sbin/ldomctl/mdesc.c
index 8f2dfbd55d8..ddad9483b3d 100644
--- a/usr.sbin/ldomctl/mdesc.c
+++ b/usr.sbin/ldomctl/mdesc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mdesc.c,v 1.11 2018/09/16 12:17:05 kettenis Exp $	*/
+/*	$OpenBSD: mdesc.c,v 1.12 2019/07/14 14:40:55 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2012 Mark Kettenis
@@ -301,6 +301,21 @@ md_get_prop_data(struct md *md, struct md_node *node, const char *name,
 	return true;
 }
 
+bool
+md_set_prop_data(struct md *md, struct md_node *node, const char *name,
+		 const uint8_t *data, size_t len)
+{
+	struct md_prop *prop;
+
+	prop = md_find_prop(md, node, name);
+	if (prop == NULL || prop->tag != MD_PROP_DATA)
+		return false;
+
+	md_free_data(md, prop->d.data);
+	prop->d.data = md_add_data(md, data, len);
+	return true;
+}
+
 void
 md_delete_node(struct md *md, struct md_node *node)
 {
diff --git a/usr.sbin/ldomctl/mdesc.h b/usr.sbin/ldomctl/mdesc.h
index 48972b2e5e3..acbe6cddab5 100644
--- a/usr.sbin/ldomctl/mdesc.h
+++ b/usr.sbin/ldomctl/mdesc.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mdesc.h,v 1.7 2018/09/16 12:17:05 kettenis Exp $	*/
+/*	$OpenBSD: mdesc.h,v 1.8 2019/07/14 14:40:55 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2012 Mark Kettenis
@@ -121,6 +121,8 @@ bool md_get_prop_val(struct md *, struct md_node *, const char *, uint64_t *);
 bool md_set_prop_val(struct md *, struct md_node *, const char *, uint64_t);
 bool md_get_prop_str(struct md *, struct md_node *, const char *,
     const char **);
+bool md_set_prop_data(struct md *, struct md_node *, const char *,
+    const uint8_t *, size_t);
 bool md_get_prop_data(struct md *, struct md_node *, const char *,
     const void **, size_t *);