1 files changed, 57 insertions, 0 deletions
diff --git a/test/packetdrill/mpls_packet.h b/test/packetdrill/mpls_packet.h
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+++ b/test/packetdrill/mpls_packet.h
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+/*
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+/*
+ * Author: ncardwell@google.com (Neal Cardwell)
+ *
+ * Interface for module for formatting MPLS packets.
+ */
+
+#ifndef __MPLS_PACKET_H__
+#define __MPLS_PACKET_H__
+
+#include "types.h"
+
+#include "mpls.h"
+#include "packet.h"
+
+/* Fill in the given MPLS label stack entry with the given field
+ * values, validating that actual parameter value fits inside the
+ * width of the field on the wire. On success, return STATUS_OK; on
+ * error return STATUS_ERR and fill in a malloc-allocated error
+ * message in *error.
+ */
+extern int new_mpls_stack_entry(s64 label, s64 traffic_class,
+				bool is_stack_bottom, s64 ttl,
+				struct mpls *mpls, char **error);
+
+/* Append an MPLS header to the end of the given packet.  On success,
+ * return STATUS_OK; on error return STATUS_ERR and fill in a
+ * malloc-allocated error message in *error.
+ */
+extern int mpls_header_append(struct packet *packet,
+			      struct mpls_stack *mpls_stack,
+			      char **error);
+
+/* Finalize the MPLS header by filling in all necessary fields that
+ * were not filled in at parse time.
+ */
+extern int mpls_header_finish(struct packet *packet,
+			      struct header *header, struct header *next_inner);
+
+#endif /* __MPLS_PACKET_H__ */