openflow build environment setup

openflow/include/openvswitch/geneve.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OPENVSWITCH_GENEVE_H
+#define OPENVSWITCH_GENEVE_H 1
+
+#include "openvswitch/types.h"
+
+#define TLV_MAX_OPT_SIZE 124
+#define TLV_TOT_OPT_SIZE 252
+
+#define GENEVE_CRIT_OPT_TYPE (1 << 7)
+
+struct geneve_opt {
+    ovs_be16  opt_class;
+    uint8_t   type;
+#ifdef WORDS_BIGENDIAN
+    uint8_t   r1:1;
+    uint8_t   r2:1;
+    uint8_t   r3:1;
+    uint8_t   length:5;
+#else
+    uint8_t   length:5;
+    uint8_t   r3:1;
+    uint8_t   r2:1;
+    uint8_t   r1:1;
+#endif
+    /* Option data */
+};
+
+struct genevehdr {
+#ifdef WORDS_BIGENDIAN
+    uint8_t ver:2;
+    uint8_t opt_len:6;
+    uint8_t oam:1;
+    uint8_t critical:1;
+    uint8_t rsvd1:6;
+#else
+    uint8_t opt_len:6;
+    uint8_t ver:2;
+    uint8_t rsvd1:6;
+    uint8_t critical:1;
+    uint8_t oam:1;
+#endif
+    ovs_be16 proto_type;
+    ovs_16aligned_be32 vni;
+    struct geneve_opt options[];
+};
+
+#endif /* geneve.h */