1 files changed, 95 insertions, 0 deletions
diff --git a/lib/src/protocol/new.h b/lib/src/protocol/new.h
new file mode 100644
index 000000000..7679910f4
--- /dev/null
+++ b/lib/src/protocol/new.h
@@ -0,0 +1,95 @@
+/*
+ * 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.
+ */
+
+/**
+ * @file protocol/ah.h
+ * @brief AH packet header
+ */
+#ifndef HICN_PROTOCOL_NEW_H
+#define HICN_PROTOCOL_NEW_H
+
+#include <hicn/common.h>
+#include <hicn/name.h>
+
+/*
+ * The length of the new header struct must be 28 bytes.
+ */
+#define EXPECTED_NEW_HDRLEN 32
+
+typedef struct
+{
+  u8 version_reserved;
+  u8 flags;
+
+  /* Size of the payload direcly after the new header */
+  u16 payload_len;
+
+  u32 lifetime;
+
+  /* Name prefix and suffix */
+  hicn_ip_address_t prefix;
+  u32 suffix;
+
+  /* We reserve 32 bits for the path label */
+  u32 path_label;
+} _new_header_t;
+
+#define NEW_HDRLEN sizeof (_new_header_t)
+static_assert (EXPECTED_NEW_HDRLEN == NEW_HDRLEN,
+	       "Size of new_header Struct does not match its expected size.");
+
+/* TCP flags bit 0 first. */
+#define foreach_hicn_new_flag                                                 \
+  _ (SIG) /**< Signature header after. */                                     \
+  _ (MAN) /**< Payload type is manifest. */                                   \
+  _ (INT) /**< Packet is interest. */                                         \
+  _ (LST) /**< Last data. */
+
+enum
+{
+#define _(f) HICN_NEW_FLAG_BIT_##f,
+  foreach_hicn_new_flag
+#undef _
+    HICN_NEW_N_FLAG_BITS,
+};
+
+enum
+{
+#define _(f) HICN_NEW_FLAG_##f = 1 << HICN_NEW_FLAG_BIT_##f,
+  foreach_hicn_new_flag
+#undef _
+};
+
+static inline int
+_get_new_header_version (const _new_header_t *new_hdr)
+{
+  return ((new_hdr->version_reserved >> 4) & 0x0F);
+}
+
+static inline void
+_set_new_header_version (_new_header_t *new_hdr)
+{
+  new_hdr->version_reserved = (0x9 << 4) & 0xF0;
+}
+
+#endif /* HICN_PROTOCOL_NEW_H */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */