2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #ifndef __included_ip6_hop_by_hop_packet_h__
16 #define __included_ip6_hop_by_hop_packet_h__
19 /* Protocol for next header */
22 * Length of hop_by_hop header in 8 octet units,
23 * not including the first 8 octets
26 } ip6_hop_by_hop_header_t;
30 #define HBH_OPTION_TYPE_SKIP_UNKNOWN (0x00)
31 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN (0x40)
32 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP (0x80)
33 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP_NOT_MCAST (0xc0)
34 #define HBH_OPTION_TYPE_HIGH_ORDER_BITS (0xc0)
35 #define HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE (1<<5)
37 /* Length in octets of the option data field */
39 } ip6_hop_by_hop_option_t;
41 /* $$$$ IANA banana constants */
42 #define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */
43 #define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */
44 #define HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE 29
47 typedef CLIB_PACKED(struct {
48 ip6_hop_by_hop_option_t hdr;
54 #endif /* __included_ip6_hop_by_hop_packet_h__ */