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-rw-r--r--src/vnet/ip/ip6_hop_by_hop_packet.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/vnet/ip/ip6_hop_by_hop_packet.h b/src/vnet/ip/ip6_hop_by_hop_packet.h
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+/*
+ * Copyright (c) 2015 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 __included_ip6_hop_by_hop_packet_h__
+#define __included_ip6_hop_by_hop_packet_h__
+
+typedef struct
+{
+ /* Protocol for next header */
+ u8 protocol;
+ /*
+ * Length of hop_by_hop header in 8 octet units,
+ * not including the first 8 octets
+ */
+ u8 length;
+} ip6_hop_by_hop_header_t;
+
+typedef struct
+{
+ /* Option Type */
+#define HBH_OPTION_TYPE_SKIP_UNKNOWN (0x00)
+#define HBH_OPTION_TYPE_DISCARD_UNKNOWN (0x40)
+#define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP (0x80)
+#define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP_NOT_MCAST (0xc0)
+#define HBH_OPTION_TYPE_HIGH_ORDER_BITS (0xc0)
+#define HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE (1<<5)
+ u8 type;
+ /* Length in octets of the option data field */
+ u8 length;
+} ip6_hop_by_hop_option_t;
+
+/* $$$$ IANA banana constants */
+#define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */
+#define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */
+#define HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE 29
+
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+ ip6_hop_by_hop_option_t hdr;
+ u8 e2e_type;
+ u8 reserved;
+ u32 e2e_data;
+}) ioam_e2e_option_t;
+/* *INDENT-ON* */
+
+#endif /* __included_ip6_hop_by_hop_packet_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */