1 files changed, 86 insertions, 0 deletions
diff --git a/lib/src/protocol/ipv6.h b/lib/src/protocol/ipv6.h
new file mode 100644
index 000000000..9a51096a0
--- /dev/null
+++ b/lib/src/protocol/ipv6.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2021-2022 Cisco and/or its affiliates.
+ * 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 HICN_PROTOCOL_IPV6_H
+#define HICN_PROTOCOL_IPV6_H
+
+#include <hicn/util/ip_address.h>
+
+#include <hicn/common.h>
+
+/*
+ * The length of the IPV6 header struct must be 40 bytes.
+ */
+#define EXPECTED_IPV6_HDRLEN 40
+
+typedef struct
+{
+#if 0 // TEMPORARY FIX
+  union
+  {
+    struct
+    {
+#endif
+  u32 version_class_flow; /* version, traffic class and 20 bits of flow-ID */
+  u16 len;		  /* payload length */
+  u8 nxt;		  /* next header */
+  u8 hlim;		  /* hop limit */
+#if 0
+    };
+    u8 vfc;			/* 4 bits version, top 4 bits class */
+  };
+#endif
+  ipv6_address_t saddr; /* source address */
+  ipv6_address_t daddr; /* destination address */
+} _ipv6_header_t;
+
+#define IPV6_HDRLEN sizeof (_ipv6_header_t)
+static_assert (EXPECTED_IPV6_HDRLEN == IPV6_HDRLEN,
+	       "Size of IPV6 struct does not match its expected size.");
+
+/*
+ * The length of the IPV6 pseudo header struct must be 40 bytes.
+ */
+#define EXPECTED_IPV6_PSHDRLEN 40
+
+typedef struct
+{
+  ipv6_address_t ip_src;
+  ipv6_address_t ip_dst;
+  u32 size;
+  u16 zeros;
+  u8 zero;
+  u8 protocol;
+} ipv6_pseudo_header_t;
+
+#define IPV6_PSHDRLEN sizeof (ipv6_pseudo_header_t)
+static_assert (EXPECTED_IPV6_PSHDRLEN == IPV6_PSHDRLEN,
+	       "Size of IPV6_PSHDR struct does not match its expected size.");
+
+/* Default field values */
+#define IPV6_DEFAULT_VERSION	    6
+#define IPV6_DEFAULT_TRAFFIC_CLASS  0
+#define IPV6_DEFAULT_FLOW_LABEL	    0
+#define IPV6_DEFAULT_PAYLOAD_LENGTH 0
+
+#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */