105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/** @file
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@brief 6lowpan private header
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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/* 6lopan dispatches */
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#define NET_6LO_DISPATCH_IPV6 0x41 /* 01000001 */
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#define NET_6LO_DISPATCH_BROADCAST 0x50 /* 01010000 */
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#define NET_6LO_DISPATCH_IPHC 0x60 /* 01100000 */
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#define NET_6LO_DISPATCH_MESH 0x80 /* 10xxxxxx */
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#define NET_6LO_DISPATCH_FRAG1 0xC0 /* 11000xxx */
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#define NET_6LO_DISPATCH_FRAGN 0xE0 /* 11100xxx */
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/**
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* TF (Traffic class and Flow label)
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* 00: ECN + DSCP + 4-bit Pad + Flow Label (4 bytes)
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* 01: ECN + 2-bit Pad + Flow Label (3 bytes), DSCP is elided.
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* 10: ECN + DSCP (1 byte), Flow Label is elided.
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* 11: Traffic Class and Flow Label are elided.
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*/
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#define NET_6LO_IPHC_TF_00 0x00
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#define NET_6LO_IPHC_TF_01 0x08
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#define NET_6LO_IPHC_TF_10 0x10
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#define NET_6LO_IPHC_TF_11 0x18
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/* NH (next header) */
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#define NET_6LO_IPHC_NH_0 0x00
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#define NET_6LO_IPHC_NH_1 0x04
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/* HLIM (Hop Limit) */
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#define NET_6LO_IPHC_HLIM 0x00 /* 00 */
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#define NET_6LO_IPHC_HLIM1 0x01 /* 01 */
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#define NET_6LO_IPHC_HLIM64 0x02 /* 10 */
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#define NET_6LO_IPHC_HLIM255 0x03 /* 11 */
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/* CID (Context Identifier Extension) */
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#define NET_6LO_IPHC_CID_0 0x00
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#define NET_6LO_IPHC_CID_1 0x80
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/* SAC (Source Address Compression) */
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#define NET_6LO_IPHC_SAC_0 0x00
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#define NET_6LO_IPHC_SAC_1 0x40
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/* SAM (Source Address Mode) */
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#define NET_6LO_IPHC_SAM_00 0x00
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#define NET_6LO_IPHC_SAM_01 0x10
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#define NET_6LO_IPHC_SAM_10 0x20
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#define NET_6LO_IPHC_SAM_11 0x30
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/* M (Multicast compression) */
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#define NET_6LO_IPHC_M_0 0x00
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#define NET_6LO_IPHC_M_1 0x08
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/* DAC (Destination Address Compression) */
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#define NET_6LO_IPHC_DAC_0 0x00
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#define NET_6LO_IPHC_DAC_1 0x04
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/* DAM (Destination Address Mode) */
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#define NET_6LO_IPHC_DAM_00 0x00
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#define NET_6LO_IPHC_DAM_01 0x01
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#define NET_6LO_IPHC_DAM_10 0x02
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#define NET_6LO_IPHC_DAM_11 0x03
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/* Next Header UDP */
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#define NET_6LO_NHC_UDP_BARE 0xF0
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#define NET_6LO_NHC_UDP_CHKSUM_0 0x00
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#define NET_6LO_NHC_UDP_CHKSUM_1 0x08
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#define NET_6LO_NHC_UDP_PORT_00 0x00
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#define NET_6LO_NHC_UDP_PORT_01 0x01
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#define NET_6LO_NHC_UDP_PORT_10 0x02
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#define NET_6LO_NHC_UDP_PORT_11 0x03
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#define NET_6LO_NHC_UDP_8_BIT_PORT 0xF0
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#define NET_6LO_NHC_UDP_4_BIT_PORT 0xF0B
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#define IPHC ((frag)->data)
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#define CIPHC ((buf->frags)->data)
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#define NET_6LO_FRAG1_HDR_LEN 4
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#define NET_6LO_FRAGN_HDR_LEN 5
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#define NET_6LO_FRAG_DATAGRAM_SIZE_LEN 2
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#define NET_6LO_FRAG_DATAGRAM_OFFSET_LEN 2
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