FD.io VPP  v20.01-48-g3e0dafb74
Vector Packet Processing
packet.h
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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_vnet_hdlc_packet_h
16 #define included_vnet_hdlc_packet_h
17 
18 /*
19  * HDLC packet format
20  *
21  * Copyright (c) 2009 Eliot Dresselhaus
22  *
23  * Permission is hereby granted, free of charge, to any person obtaining
24  * a copy of this software and associated documentation files (the
25  * "Software"), to deal in the Software without restriction, including
26  * without limitation the rights to use, copy, modify, merge, publish,
27  * distribute, sublicense, and/or sell copies of the Software, and to
28  * permit persons to whom the Software is furnished to do so, subject to
29  * the following conditions:
30  *
31  * The above copyright notice and this permission notice shall be
32  * included in all copies or substantial portions of the Software.
33  *
34  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
35  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
36  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
37  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
38  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
39  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
40  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
41  */
42 
43 #define foreach_hdlc_protocol \
44  _ (0x0800, ip4) \
45  _ (0x2000, cdp) \
46  _ (0x8035, slarp) \
47  _ (0x8847, mpls_unicast) \
48  _ (0x8848, mpls_multicast) \
49  _ (0x86dd, ip6) \
50  _ (0xfefe, osi)
51 
52 typedef enum
53 {
54 #define _(n,f) HDLC_PROTOCOL_##f = n,
56 #undef _
58 
59 typedef struct
60 {
61  /* Set to 0x0f for unicast; 0x8f for broadcast. */
63 
64  /* Always zero. */
66 
67  /* Layer 3 protocol for this packet. */
69 
70  /* Layer 3 payload. */
71  u8 payload[0];
73 
74 #endif /* included_vnet_hdlc_packet_h */
75 
76 /*
77  * fd.io coding-style-patch-verification: ON
78  *
79  * Local Variables:
80  * eval: (c-set-style "gnu")
81  * End:
82  */
u8 control
Definition: packet.h:65
#define foreach_hdlc_protocol
Definition: packet.h:43
unsigned char u8
Definition: types.h:56
hdlc_protocol_t
Definition: packet.h:52
unsigned short u16
Definition: types.h:57
u8 address
Definition: packet.h:62
u16 protocol
Definition: packet.h:68