| /** @file |
| @brief 6lowpan private header |
| |
| This is not to be included by the application. |
| */ |
| |
| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <stdio.h> |
| |
| /* 6lopan dispatches */ |
| #define NET_6LO_DISPATCH_IPV6 0x41 /* 01000001 */ |
| #define NET_6LO_DISPATCH_BROADCAST 0x50 /* 01010000 */ |
| #define NET_6LO_DISPATCH_IPHC 0x60 /* 01100000 */ |
| #define NET_6LO_DISPATCH_MESH 0x80 /* 10xxxxxx */ |
| #define NET_6LO_DISPATCH_FRAG1 0xC0 /* 11000xxx */ |
| #define NET_6LO_DISPATCH_FRAGN 0xE0 /* 11100xxx */ |
| |
| #define NET_6LO_DISPATCH_IPHC_MASK 0xE0 |
| /** |
| * TF (Traffic class and Flow label) |
| * 00: ECN + DSCP + 4-bit Pad + Flow Label (4 bytes) |
| * 01: ECN + 2-bit Pad + Flow Label (3 bytes), DSCP is elided. |
| * 10: ECN + DSCP (1 byte), Flow Label is elided. |
| * 11: Traffic Class and Flow Label are elided. |
| */ |
| #define NET_6LO_IPHC_TF_POS 11 |
| #define NET_6LO_IPHC_TF_MASK (0x03 << NET_6LO_IPHC_TF_POS) |
| #define NET_6LO_IPHC_TF_00 (0x00 << NET_6LO_IPHC_TF_POS) |
| #define NET_6LO_IPHC_TF_01 (0x01 << NET_6LO_IPHC_TF_POS) |
| #define NET_6LO_IPHC_TF_10 (0x02 << NET_6LO_IPHC_TF_POS) |
| #define NET_6LO_IPHC_TF_11 (0x03 << NET_6LO_IPHC_TF_POS) |
| |
| /* NH (next header) */ |
| #define NET_6LO_IPHC_NH_POS 10 |
| #define NET_6LO_IPHC_NH_MASK (0x01 << NET_6LO_IPHC_NH_POS) |
| #define NET_6LO_IPHC_NH_0 (0x00 << NET_6LO_IPHC_NH_POS) |
| #define NET_6LO_IPHC_NH_1 (0x01 << NET_6LO_IPHC_NH_POS) |
| |
| /* HLIM (Hop Limit) */ |
| #define NET_6LO_IPHC_HLIM_POS 8 |
| #define NET_6LO_IPHC_HLIM_MASK (0x03 << NET_6LO_IPHC_HLIM_POS) |
| #define NET_6LO_IPHC_HLIM (0x00 << NET_6LO_IPHC_HLIM_POS) /* 00 */ |
| #define NET_6LO_IPHC_HLIM1 (0x01 << NET_6LO_IPHC_HLIM_POS) /* 01 */ |
| #define NET_6LO_IPHC_HLIM64 (0x02 << NET_6LO_IPHC_HLIM_POS) /* 10 */ |
| #define NET_6LO_IPHC_HLIM255 (0x03 << NET_6LO_IPHC_HLIM_POS) /* 11 */ |
| |
| /* CID (Context Identifier Extension) */ |
| #define NET_6LO_IPHC_CID_POS 7 |
| #define NET_6LO_IPHC_CID_MASK (0x01 << NET_6LO_IPHC_CID_POS) |
| #define NET_6LO_IPHC_CID_0 (0x00 << NET_6LO_IPHC_CID_POS) |
| #define NET_6LO_IPHC_CID_1 (0x01 << NET_6LO_IPHC_CID_POS) |
| |
| /* SAC (Source Address Compression) */ |
| #define NET_6LO_IPHC_SAC_POS 6 |
| #define NET_6LO_IPHC_SAC_MASK (0x01 << NET_6LO_IPHC_SAC_POS) |
| #define NET_6LO_IPHC_SAC_0 (0x00 << NET_6LO_IPHC_SAC_POS) |
| #define NET_6LO_IPHC_SAC_1 (0x01 << NET_6LO_IPHC_SAC_POS) |
| |
| /* SAM (Source Address Mode) */ |
| #define NET_6LO_IPHC_SAM_POS 4 |
| #define NET_6LO_IPHC_SAM_MASK (0x03 << NET_6LO_IPHC_SAM_POS) |
| #define NET_6LO_IPHC_SAM_00 (0x00 << NET_6LO_IPHC_SAM_POS) |
| #define NET_6LO_IPHC_SAM_01 (0x01 << NET_6LO_IPHC_SAM_POS) |
| #define NET_6LO_IPHC_SAM_10 (0x02 << NET_6LO_IPHC_SAM_POS) |
| #define NET_6LO_IPHC_SAM_11 (0x03 << NET_6LO_IPHC_SAM_POS) |
| |
| #define NET_6LO_IPHC_SA_MASK (NET_6LO_IPHC_SAC_MASK | \ |
| NET_6LO_IPHC_SAM_MASK) |
| |
| /* M (Multicast compression) */ |
| #define NET_6LO_IPHC_M_POS 3 |
| #define NET_6LO_IPHC_M_MASK (0x01 << NET_6LO_IPHC_M_POS) |
| #define NET_6LO_IPHC_M_0 (0x00 << NET_6LO_IPHC_M_POS) |
| #define NET_6LO_IPHC_M_1 (0x01 << NET_6LO_IPHC_M_POS) |
| |
| /* DAC (Destination Address Compression) */ |
| #define NET_6LO_IPHC_DAC_POS 2 |
| #define NET_6LO_IPHC_DAC_MASK (0x01 << NET_6LO_IPHC_DAC_POS) |
| #define NET_6LO_IPHC_DAC_0 (0x00 << NET_6LO_IPHC_DAC_POS) |
| #define NET_6LO_IPHC_DAC_1 (0x01 << NET_6LO_IPHC_DAC_POS) |
| |
| /* DAM (Destination Address Mode) */ |
| #define NET_6LO_IPHC_DAM_POS 0 |
| #define NET_6LO_IPHC_DAM_MASK (0x03 << NET_6LO_IPHC_DAM_POS) |
| #define NET_6LO_IPHC_DAM_00 (0x00 << NET_6LO_IPHC_DAM_POS) |
| #define NET_6LO_IPHC_DAM_01 (0x01 << NET_6LO_IPHC_DAM_POS) |
| #define NET_6LO_IPHC_DAM_10 (0x02 << NET_6LO_IPHC_DAM_POS) |
| #define NET_6LO_IPHC_DAM_11 (0x03 << NET_6LO_IPHC_DAM_POS) |
| |
| #define NET_6LO_IPHC_DA_MASK (NET_6LO_IPHC_DAC_MASK | \ |
| NET_6LO_IPHC_DAM_MASK | \ |
| NET_6LO_IPHC_M_MASK) |
| |
| /* Next Header UDP */ |
| #define NET_6LO_NHC_UDP_BARE 0xF0 |
| |
| #define NET_6LO_NHC_UDP_CHKSUM_0 0x00 |
| #define NET_6LO_NHC_UDP_CHKSUM_1 0x08 |
| |
| #define NET_6LO_NHC_UDP_PORT_MASK 0x03 |
| #define NET_6LO_NHC_UDP_PORT_00 0x00 |
| #define NET_6LO_NHC_UDP_PORT_01 0x01 |
| #define NET_6LO_NHC_UDP_PORT_10 0x02 |
| #define NET_6LO_NHC_UDP_PORT_11 0x03 |
| #define NET_6LO_NHC_UDP_CHECKSUM 0x04 |
| #define NET_6LO_NHC_UDP_8_BIT_PORT 0xF0 |
| #define NET_6LO_NHC_UDP_4_BIT_PORT 0xF0B |
| |
| #define NET_6LO_FRAG1_HDR_LEN 4 |
| #define NET_6LO_FRAGN_HDR_LEN 5 |
| |
| #define NET_6LO_FRAG_DATAGRAM_SIZE_LEN 2 |
| #define NET_6LO_FRAG_DATAGRAM_OFFSET_LEN 2 |
| |
| /* Timeout when getting net_buf in RX path. In RX, we must not wait forever as |
| * that can cause the stack to deadlock. This can happen if RX side is flooding |
| * incoming data and we cannot get process the packet in 6lo side. |
| */ |
| #define NET_6LO_RX_PKT_TIMEOUT K_MSEC(100) /* in ms */ |
