From 6d3b46668f36231034a5a794474240e0dd4d95b6 Mon Sep 17 00:00:00 2001
From: Sansar Choinyambuu <schoinya@hsr.ch>
Date: Sun, 18 Dec 2011 18:36:36 +0100
Subject: [PATCH] TrouSerS expects a bitmask field length of at least 3 bytes

---
 src/libpts/pts/pts.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libpts/pts/pts.c b/src/libpts/pts/pts.c
index 2f13ffce2..6469f7cc4 100644
--- a/src/libpts/pts/pts.c
+++ b/src/libpts/pts/pts.c
@@ -1155,7 +1155,11 @@ METHOD(pts_t, get_quote_info, bool,
 		return FALSE;
 	}
 	
-	size_of_select = 1 + this->pcr_max / 8;	
+	/**
+	 * A TPM v1.2 has 24 PCR Registers
+	 * so the bitmask field length used by TrouSerS is at least 3 bytes
+	 */
+	size_of_select = max(PCR_MAX_NUM / 8, 1 + this->pcr_max / 8);
 	pcr_comp_len = 2 + size_of_select + 4 + this->pcr_count * this->pcr_len;
 	
 	writer = bio_writer_create(pcr_comp_len);