FD.io VPP  v21.10.1-2-g0a485f517
Vector Packet Processing
ip6_hop_by_hop_packet.h
Go to the documentation of this file.
1 /*
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 #ifndef __included_ip6_hop_by_hop_packet_h__
16 #define __included_ip6_hop_by_hop_packet_h__
17 
18 typedef struct
19 {
20  /* Protocol for next header */
22  /*
23  * Length of hop_by_hop header in 8 octet units,
24  * not including the first 8 octets
25  */
28 
29 typedef struct
30 {
31  /* Option Type */
32 #define HBH_OPTION_TYPE_SKIP_UNKNOWN (0x00)
33 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN (0x40)
34 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP (0x80)
35 #define HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP_NOT_MCAST (0xc0)
36 #define HBH_OPTION_TYPE_HIGH_ORDER_BITS (0xc0)
37 #define HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE (1<<5)
39  /* Length in octets of the option data field */
42 
43 /* $$$$ IANA banana constants */
44 #define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */
45 #define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */
46 #define HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE 29
47 
48 #endif /* __included_ip6_hop_by_hop_packet_h__ */
49 
50 /*
51  * fd.io coding-style-patch-verification: ON
52  *
53  * Local Variables:
54  * eval: (c-set-style "gnu")
55  * End:
56  */
ip6_hop_by_hop_option_t::length
u8 length
Definition: ip6_hop_by_hop_packet.h:40
ip6_hop_by_hop_option_t::type
u8 type
Definition: ip6_hop_by_hop_packet.h:38
ip6_hop_by_hop_option_t
Definition: ip6_hop_by_hop_packet.h:29
ip6_hop_by_hop_header_t
Definition: ip6_hop_by_hop_packet.h:18
ip6_hop_by_hop_header_t::length
u8 length
Definition: ip6_hop_by_hop_packet.h:26
u8
unsigned char u8
Definition: types.h:56
ip6_hop_by_hop_header_t::protocol
u8 protocol
Definition: ip6_hop_by_hop_packet.h:21