From c330ba18f74cf3fd605ff5d74138338925451da5 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Thu, 9 Apr 2015 14:12:59 +0900
Subject: [PATCH] packet_data_generator2: Fix message length field

Some of ofputil_encode_xxx functions does not fill in
the correct value for the length field in the ofp header.
Fix it up before writing out the message to a file.

NOTE: For Open vSwitch, ofconn_send() fixes it up before
sending out the message to the peer.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/tests/packet_data_generator2/gen.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/ryu/tests/packet_data_generator2/gen.c b/ryu/tests/packet_data_generator2/gen.c
index 70f28d25..e2043bef 100644
--- a/ryu/tests/packet_data_generator2/gen.c
+++ b/ryu/tests/packet_data_generator2/gen.c
@@ -18,6 +18,7 @@
 
 #include <lib/ofpbuf.h>
 #include <lib/ofp-actions.h>
+#include <lib/ofp-msgs.h>
 #include <lib/ofp-util.h>
 #include <lib/packets.h>
 
@@ -58,6 +59,14 @@ dump_ofpbuf(const char *name, const struct ofpbuf *buf)
     }
 }
 
+void
+dump_message(const char *name, struct ofpbuf *buf)
+{
+
+    ofpmsg_update_length(buf);
+    dump_ofpbuf(name, buf);
+}
+
 void
 fill_match(struct match *match)
 {
@@ -208,7 +217,7 @@ main(int argc, char *argv[])
                 "../packet_data/%s/libofproto-%s-%s.packet",
                 p->dir_name, p->name, m->name);
             clear_xid(buf);
-            dump_ofpbuf(name, buf);
+            dump_message(name, buf);
             ofpbuf_delete(buf);
         }
     }