From 42fa0d3d174c46304cccbfe1aab91348e8ef45b4 Mon Sep 17 00:00:00 2001
From: Thomas Fossati <thomas.fossati@linaro.org>
Date: Wed, 28 Aug 2024 12:06:59 +0200
Subject: [PATCH] fix(scheme): handle the case when no platform configuration
 RV is given

Signed-off-by: Thomas Fossati <thomas.fossati@linaro.org>
---
 scheme/common/arm/handlers.go | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/scheme/common/arm/handlers.go b/scheme/common/arm/handlers.go
index 2f0cdaac..13061e48 100644
--- a/scheme/common/arm/handlers.go
+++ b/scheme/common/arm/handlers.go
@@ -182,8 +182,17 @@ func MatchPlatformConfig(scheme string, evidence psatoken.IClaims, endorsements
 	if err != nil {
 		return false
 	}
-	if len(endorsements) > 1 {
-		log.Errorf("got %d CCA configuration endorsements, want 1", len(endorsements))
+
+	endorsementsLen := len(endorsements)
+
+	switch endorsementsLen {
+	case 0:
+		log.Debugf("got no CCA configuration endorsement, accepting unconditionally")
+		return true
+	case 1:
+		break
+	default:
+		log.Errorf("got %d CCA configuration endorsements, want 1", endorsementsLen)
 		return false
 	}