2017-03-30 02:07:52 +02:00
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/****************************************************************************
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* net/sixlowpan/sixlowpan_internal.h
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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2017-03-30 23:38:56 +02:00
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* Parts of this file derive from Contiki:
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*
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* Copyright (c) 2008, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Additional fixes for AVR contributed by:
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* Colin O'Flynn coflynn@newae.com
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* Eric Gnoske egnoske@gmail.com
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* Blake Leverett bleverett@gmail.com
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* Mike Vidales mavida404@gmail.com
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* Kevin Brown kbrown3@uccs.edu
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* Nate Bohlmann nate@elfwerks.com
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*
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* Additional fixes for MSP430 contributed by:
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* Joakim Eriksson
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* Niclas Finne
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* Nicolas Tsiftes
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*
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* All rights reserved.
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*
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2017-03-30 02:07:52 +02:00
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* Redistribution and use in source and binary forms, with or without
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2017-03-30 23:38:56 +02:00
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* modification, are permitted provided that the following conditions are met:
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2017-03-30 02:07:52 +02:00
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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2017-03-30 23:38:56 +02:00
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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2017-03-30 02:07:52 +02:00
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* POSSIBILITY OF SUCH DAMAGE.
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****************************************************************************/
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#ifndef _NET_SIXLOWPAN_SIXLOWPAN_INTERNAL_H
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#define _NET_SIXLOWPAN_SIXLOWPAN_INTERNAL_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <nuttx/net/tcp.h>
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#include <nuttx/net/udp.h>
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#include <nuttx/net/icmpv6.h>
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#include <nuttx/net/sixlowpan.h>
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2017-03-30 02:07:52 +02:00
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#ifdef CONFIG_NET_6LOWPAN
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Rime addres macros */
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/* Copy a Rime address */
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#define rimeaddr_copy(dest,src) \
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memcpy(dest, src, CONFIG_NET_6LOWPAN_RIMEADDR_SIZE)
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/* Compare two Rime addresses */
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#define rimeaddr_cmp(addr1,addr2) \
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(memcmp(addr1, addr2, CONFIG_NET_6LOWPAN_RIMEADDR_SIZE) == 0)
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2017-03-31 23:09:07 +02:00
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/* Pointers in the Rime buffer */
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2017-03-31 18:04:29 +02:00
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/* Packet buffer Definitions */
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#define PACKETBUF_ATTR_PACKET_TYPE_DATA 0
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#define PACKETBUF_ATTR_PACKET_TYPE_ACK 1
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#define PACKETBUF_ATTR_PACKET_TYPE_STREAM 2
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#define PACKETBUF_ATTR_PACKET_TYPE_STREAM_END 3
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#define PACKETBUF_ATTR_PACKET_TYPE_TIMESTAMP 4
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/* Packet buffer attributes (indices into i_pktattr) */
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#define PACKETBUF_ATTR_NONE 0
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/* Scope 0 attributes: used only on the local node. */
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#define PACKETBUF_ATTR_CHANNEL 1
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#define PACKETBUF_ATTR_NETWORK_ID 2
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#define PACKETBUF_ATTR_LINK_QUALITY 3
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#define PACKETBUF_ATTR_RSSI 4
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#define PACKETBUF_ATTR_TIMESTAMP 5
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#define PACKETBUF_ATTR_RADIO_TXPOWER 6
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#define PACKETBUF_ATTR_LISTEN_TIME 7
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#define PACKETBUF_ATTR_TRANSMIT_TIME 8
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#define PACKETBUF_ATTR_MAX_MAC_TRANSMISSIONS 9
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#define PACKETBUF_ATTR_MAC_SEQNO 10
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#define PACKETBUF_ATTR_MAC_ACK 11
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/* Scope 1 attributes: used between two neighbors only. */
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#define PACKETBUF_ATTR_RELIABLE 12
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#define PACKETBUF_ATTR_PACKET_ID 13
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#define PACKETBUF_ATTR_PACKET_TYPE 14
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#define PACKETBUF_ATTR_REXMIT 15
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#define PACKETBUF_ATTR_MAX_REXMIT 16
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#define PACKETBUF_ATTR_NUM_REXMIT 17
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#define PACKETBUF_ATTR_PENDING 18
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/* Scope 2 attributes: used between end-to-end nodes. */
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#define PACKETBUF_ATTR_HOPS 11
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#define PACKETBUF_ATTR_TTL 20
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#define PACKETBUF_ATTR_EPACKET_ID 21
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#define PACKETBUF_ATTR_EPACKET_TYPE 22
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#define PACKETBUF_ATTR_ERELIABLE 23
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#define PACKETBUF_NUM_ATTRS 24
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/* Addresses (indices into i_pktaddr) */
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#define PACKETBUF_ADDR_SENDER 0
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#define PACKETBUF_ADDR_RECEIVER 1
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#define PACKETBUF_ADDR_ESENDER 2
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#define PACKETBUF_ADDR_ERECEIVER 3
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#define PACKETBUF_NUM_ADDRS 4
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2017-03-31 23:09:07 +02:00
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/* General helper macros ****************************************************/
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#define GETINT16(ptr,index) \
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((((uint16_t)((ptr)[index])) << 8) | ((uint16_t)(((ptr)[(index) + 1]))))
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#define PUTINT16(ptr,index,value) \
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do \
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{ \
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(ptr)[index] = ((uint16_t)(value) >> 8) & 0xff; \
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(ptr)[index + 1] = (uint16_t)(value) & 0xff; \
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} \
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while(0)
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2017-04-04 20:31:22 +02:00
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/* Debug ********************************************************************/
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#ifdef CONFIG_NET_6LOWPAN_DUMPBUFFER
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# define sixlowpan_dumpbuffer(m,b,s) ninfodumpbuffer(m,b,s)
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#else
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# define sixlowpan_dumpbuffer(m,b,s)
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#endif
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2017-03-30 02:07:52 +02:00
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/****************************************************************************
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* Public Types
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****************************************************************************/
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2017-03-30 23:38:56 +02:00
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/* IPv^ TCP/UDP Definitions *************************************************/
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/* IPv6 + TCP header. Cast compatible based on IPv6 protocol field. */
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struct ipv6tcp_hdr_s
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{
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struct ipv6_hdr_s ipv6;
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struct tcp_hdr_s tcp;
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};
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/* IPv6 + UDP header */
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struct ipv6udp_hdr_s
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{
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struct ipv6_hdr_s ipv6;
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struct udp_hdr_s udp;
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};
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/* IPv6 + ICMPv6 header */
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struct ipv6icmp_hdr_s
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{
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struct ipv6_hdr_s ipv6;
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struct icmpv6_iphdr_s icmp;
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};
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2017-03-30 23:38:56 +02:00
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/* IEEE802.15.4 Frame Definitions *******************************************/
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/* The IEEE 802.15.4 frame has a number of constant/fixed fields that can be
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* counted to make frame construction and max payload calculations easier.
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* These include:
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*
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* 1. FCF - 2 bytes - Fixed
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* 2. Sequence number - 1 byte - Fixed
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* 3. Addressing fields - 4 - 20 bytes - Variable
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* 4. Aux security header - 0 - 14 bytes - Variable
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* 5. CRC - 2 bytes - Fixed
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*/
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/* Defines the bitfields of the frame control field (FCF). */
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struct frame802154_fcf_s
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{
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uint8_t frame_type; /* 3 bit. Frame type field, see 802.15.4 */
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uint8_t security_enabled; /* 1 bit. True if security is used in this frame */
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uint8_t frame_pending; /* 1 bit. True if sender has more data to send */
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uint8_t ack_required; /* 1 bit. Is an ack frame required? */
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uint8_t panid_compression; /* 1 bit. Is this a compressed header? */
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/* 3 bit. Unused bits */
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uint8_t dest_addr_mode; /* 2 bit. Destination address mode, see 802.15.4 */
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uint8_t frame_version; /* 2 bit. 802.15.4 frame version */
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uint8_t src_addr_mode; /* 2 bit. Source address mode, see 802.15.4 */
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};
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/* 802.15.4 security control bitfield. See section 7.6.2.2.1 in 802.15.4
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* specification.
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*/
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struct frame802154_scf_s
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{
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uint8_t security_level; /* 3 bit. security level */
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uint8_t key_id_mode; /* 2 bit. Key identifier mode */
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uint8_t reserved; /* 3 bit. Reserved bits */
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};
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/* 802.15.4 Aux security header */
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struct frame802154_aux_hdr_s
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{
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struct frame802154_scf_s security_control; /* Security control bitfield */
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uint32_t frame_counter; /* Frame counter, used for security */
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uint8_t key[9]; /* The key itself, or an index to the key */
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};
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/* Parameters used by the frame802154_create() function. These parameters
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* are used in the 802.15.4 frame header. See the 802.15.4 specification
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* for details.
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*/
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struct frame802154_s
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{
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struct frame802154_fcf_s fcf; /* Frame control field */
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uint8_t seq; /* Sequence number */
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uint16_t dest_pid; /* Destination PAN ID */
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uint8_t dest_addr[8]; /* Destination address */
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uint16_t src_pid; /* Source PAN ID */
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uint8_t src_addr[8]; /* Source address */
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struct frame802154_aux_hdr_s aux_hdr; /* Aux security header */
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};
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2017-03-30 02:07:52 +02:00
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/****************************************************************************
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* Public Data
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****************************************************************************/
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2017-03-31 18:04:29 +02:00
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/* The following data values are used to hold intermediate settings while
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* processing IEEE802.15.4 frames. These globals are shared with incoming
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* and outgoing frame processing and possibly with mutliple IEEE802.15.4 MAC
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* devices. The network lock provides exclusive use of these globals
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* during that processing
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*/
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/* A pointer to the rime buffer.
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*
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* We initialize it to the beginning of the rime buffer, then access
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* different fields by updating the offset ieee->g_frame_hdrlen.
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2017-03-31 18:04:29 +02:00
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*/
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extern FAR uint8_t *g_rimeptr;
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/* g_uncomp_hdrlen is the length of the headers before compression (if HC2
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* is used this includes the UDP header in addition to the IP header).
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*/
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extern uint8_t g_uncomp_hdrlen;
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2017-04-04 15:22:59 +02:00
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/* g_frame_hdrlen is the total length of (the processed) 6lowpan headers
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* (fragment headers, IPV6 or HC1, HC2, and HC1 and HC2 non compressed
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* fields).
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*/
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2017-04-04 15:22:59 +02:00
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extern uint8_t g_frame_hdrlen;
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/* Packet buffer metadata: Attributes and addresses */
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extern uint16_t g_pktattrs[PACKETBUF_NUM_ATTRS];
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extern struct rimeaddr_s g_pktaddrs[PACKETBUF_NUM_ADDRS];
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2017-03-30 02:07:52 +02:00
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct net_driver_s; /* Forward reference */
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struct ieee802154_driver_s; /* Forward reference */
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struct devif_callback_s; /* Forward reference */
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struct ipv6_hdr_s; /* Forward reference */
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struct rimeaddr_s; /* Forward reference */
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struct iob_s; /* Forward reference */
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2017-03-30 02:07:52 +02:00
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/****************************************************************************
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* Name: sixlowpan_send
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*
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* Description:
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* Process an outgoing UDP or TCP packet. Takes an IP packet and formats
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* it to be sent on an 802.15.4 network using 6lowpan. Called from common
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* UDP/TCP send logic.
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*
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* The payload data is in the caller 'buf' and is of length 'buflen'.
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* Compressed headers will be added and if necessary the packet is
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* fragmented. The resulting packet/fragments are put in ieee->i_framelist
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* and the entire list of frames will be delivered to the 802.15.4 MAC via
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* ieee->i_framelist.
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*
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* Input Parameters:
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2017-03-31 23:09:07 +02:00
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* dev - The IEEE802.15.4 MAC network driver interface.
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2017-04-06 19:57:43 +02:00
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* list - Head of callback list for send interrupt
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* ipv6hdr - IPv6 plus TCP or UDP headers.
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* buf - Data to send
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* buflen - Length of data to send
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* raddr - The MAC address of the destination
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* timeout - Send timeout in deciseconds
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2017-03-30 02:07:52 +02:00
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*
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* Returned Value:
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* Ok is returned on success; Othewise a negated errno value is returned.
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* This function is expected to fail if the driver is not an IEEE802.15.4
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* MAC network driver. In that case, the UDP/TCP will fall back to normal
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* IPv4/IPv6 formatting.
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|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
* Called with the network locked.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
int sixlowpan_send(FAR struct net_driver_s *dev,
|
2017-04-06 19:57:43 +02:00
|
|
|
FAR struct devif_callback_s **list,
|
|
|
|
FAR const struct ipv6_hdr_s *ipv6hdr, FAR const void *buf,
|
2017-04-02 21:27:53 +02:00
|
|
|
size_t buflen, FAR const struct rimeaddr_s *raddr,
|
2017-03-31 23:09:07 +02:00
|
|
|
uint16_t timeout);
|
2017-03-30 02:07:52 +02:00
|
|
|
|
2017-03-30 23:38:56 +02:00
|
|
|
/****************************************************************************
|
2017-04-04 20:31:22 +02:00
|
|
|
* Function: sixlowpan_send_hdrlen
|
2017-03-30 23:38:56 +02:00
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* This function is before the first frame has been sent in order to
|
|
|
|
* determine what the size of the IEEE802.15.4 header will be. No frame
|
|
|
|
* buffer is required to make this determination.
|
|
|
|
*
|
|
|
|
* Input parameters:
|
|
|
|
* ieee - A reference IEEE802.15.4 MAC network device structure.
|
|
|
|
* dest_panid - PAN ID of the destination. May be 0xffff if the destination
|
|
|
|
* is not associated.
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* The frame header length is returnd on success; otherwise, a negated
|
|
|
|
* errno value is return on failure.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2017-04-04 20:31:22 +02:00
|
|
|
int sixlowpan_send_hdrlen(FAR struct ieee802154_driver_s *ieee,
|
2017-03-30 23:38:56 +02:00
|
|
|
uint16_t dest_panid);
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: sixlowpan_framecreate
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* This function is called after the IEEE802.15.4 MAC driver polls for
|
|
|
|
* TX data. It creates the IEEE802.15.4 header in the frame buffer.
|
|
|
|
*
|
|
|
|
* Input parameters:
|
|
|
|
* ieee - A reference IEEE802.15.4 MAC network device structure.
|
2017-03-31 15:54:58 +02:00
|
|
|
* iob - The IOB in which to create the frame.
|
2017-03-30 23:38:56 +02:00
|
|
|
* dest_panid - PAN ID of the destination. May be 0xffff if the destination
|
|
|
|
* is not associated.
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* The frame header length is returnd on success; otherwise, a negated
|
|
|
|
* errno value is return on failure.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
int sixlowpan_framecreate(FAR struct ieee802154_driver_s *ieee,
|
2017-03-31 15:54:58 +02:00
|
|
|
FAR struct iob_s *iob, uint16_t dest_panid);
|
2017-03-30 23:38:56 +02:00
|
|
|
|
2017-04-01 17:07:16 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: sixlowpan_queue_frames
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Process an outgoing UDP or TCP packet. This function is called from
|
|
|
|
* send interrupt logic when a TX poll is received. It formates the
|
|
|
|
* list of frames to be sent by the IEEE802.15.4 MAC driver.
|
|
|
|
*
|
2017-04-04 17:08:48 +02:00
|
|
|
* The payload data is in the caller 'buf' and is of length 'buflen'.
|
2017-04-01 17:07:16 +02:00
|
|
|
* Compressed headers will be added and if necessary the packet is
|
|
|
|
* fragmented. The resulting packet/fragments are put in ieee->i_framelist
|
|
|
|
* and the entire list of frames will be delivered to the 802.15.4 MAC via
|
|
|
|
* ieee->i_framelist.
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
|
|
|
* ieee - The IEEE802.15.4 MAC driver instance
|
|
|
|
* ipv6hdr - IPv6 header followed by TCP or UDP header.
|
2017-04-04 17:08:48 +02:00
|
|
|
* buf - Beginning of the packet packet to send (with IPv6 + protocol
|
|
|
|
* headers)
|
|
|
|
* buflen - Length of data to send (include IPv6 and protocol headers)
|
2017-04-01 17:07:16 +02:00
|
|
|
* destmac - The IEEE802.15.4 MAC address of the destination
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* Ok is returned on success; Othewise a negated errno value is returned.
|
|
|
|
* This function is expected to fail if the driver is not an IEEE802.15.4
|
|
|
|
* MAC network driver. In that case, the UDP/TCP will fall back to normal
|
|
|
|
* IPv4/IPv6 formatting.
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
* Called with the network locked.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
int sixlowpan_queue_frames(FAR struct ieee802154_driver_s *ieee,
|
|
|
|
FAR const struct ipv6_hdr_s *ipv6hdr,
|
2017-04-02 21:27:53 +02:00
|
|
|
FAR const void *buf, size_t buflen,
|
2017-04-01 17:07:16 +02:00
|
|
|
FAR const struct rimeaddr_s *destmac);
|
|
|
|
|
2017-03-30 02:07:52 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: sixlowpan_hc06_initialize
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* sixlowpan_hc06_initialize() is called during OS initialization at power-up
|
|
|
|
* reset. It is called from the common sixlowpan_initialize() function.
|
|
|
|
* sixlowpan_hc06_initialize() configures HC06 networking data structures.
|
|
|
|
* It is called prior to platform-specific driver initialization so that
|
|
|
|
* the 6loWPAN networking subsystem is prepared to deal with network
|
|
|
|
* driver initialization actions.
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC06
|
|
|
|
void sixlowpan_hc06_initialize(void);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
2017-04-02 18:06:31 +02:00
|
|
|
* Name: sixlowpan_compresshdr_hc06
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Compress IP/UDP header
|
|
|
|
*
|
|
|
|
* This function is called by the 6lowpan code to create a compressed
|
|
|
|
* 6lowpan packet in the packetbuf buffer from a full IPv6 packet in the
|
|
|
|
* uip_buf buffer.
|
|
|
|
*
|
|
|
|
* HC-06 (draft-ietf-6lowpan-hc, version 6)
|
|
|
|
* http://tools.ietf.org/html/draft-ietf-6lowpan-hc-06
|
|
|
|
*
|
|
|
|
* NOTE: sixlowpan_compresshdr_hc06() does not support ISA100_UDP header
|
|
|
|
* compression
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
2017-04-01 17:07:16 +02:00
|
|
|
* ieee - A reference to the IEE802.15.4 network device state
|
2017-04-02 18:06:31 +02:00
|
|
|
* ipv6 - The IPv6 header to be compressed
|
2017-04-02 02:24:21 +02:00
|
|
|
* destmac - L2 destination address, needed to compress the IP
|
2017-04-01 23:05:38 +02:00
|
|
|
* destination field
|
2017-04-04 20:31:22 +02:00
|
|
|
* fptr - Pointer to frame to be compressed.
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC06
|
2017-04-01 23:05:38 +02:00
|
|
|
void sixlowpan_compresshdr_hc06(FAR struct ieee802154_driver_s *ieee,
|
2017-04-02 18:06:31 +02:00
|
|
|
FAR const struct ipv6_hdr_s *ipv6,
|
2017-04-02 02:24:21 +02:00
|
|
|
FAR const struct rimeaddr_s *destmac,
|
2017-04-04 15:22:59 +02:00
|
|
|
FAR uint8_t *fptr);
|
2017-03-30 02:07:52 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
2017-04-02 18:06:31 +02:00
|
|
|
* Name: sixlowpan_uncompresshdr_hc06
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Uncompress HC06 (i.e., IPHC and LOWPAN_UDP) headers and put them in
|
|
|
|
* sixlowpan_buf
|
|
|
|
*
|
|
|
|
* This function is called by the input function when the dispatch is HC06.
|
|
|
|
* We process the packet in the rime buffer, uncompress the header fields,
|
|
|
|
* and copy the result in the sixlowpan buffer. At the end of the
|
2017-04-04 15:22:59 +02:00
|
|
|
* decompression, g_frame_hdrlen and g_uncompressed_hdrlen are set to the
|
2017-03-30 02:07:52 +02:00
|
|
|
* appropriate values
|
|
|
|
*
|
|
|
|
* Input Parmeters:
|
2017-04-04 15:22:59 +02:00
|
|
|
* ieee - A reference to the IEE802.15.4 network device state
|
|
|
|
* iplen - Equal to 0 if the packet is not a fragment (IP length is then
|
|
|
|
* inferred from the L2 length), non 0 if the packet is a first
|
|
|
|
* fragment.
|
|
|
|
* iob - Pointer to the IOB containing the received frame.
|
2017-04-08 17:34:30 +02:00
|
|
|
* fptr - Pointer to frame to be uncompressed.
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC06
|
2017-04-01 17:07:16 +02:00
|
|
|
void sixlowpan_uncompresshdr_hc06(FAR struct ieee802154_driver_s *ieee,
|
2017-04-04 15:22:59 +02:00
|
|
|
uint16_t iplen, FAR struct iob_s *iob,
|
2017-04-08 17:34:30 +02:00
|
|
|
FAR uint8_t *fptr);
|
2017-03-30 02:07:52 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: sixlowpan_compresshdr_hc1
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Compress IP/UDP header using HC1 and HC_UDP
|
|
|
|
*
|
|
|
|
* This function is called by the 6lowpan code to create a compressed
|
|
|
|
* 6lowpan packet in the packetbuf buffer from a full IPv6 packet in the
|
|
|
|
* uip_buf buffer.
|
|
|
|
*
|
|
|
|
* Input Parmeters:
|
2017-04-02 18:06:31 +02:00
|
|
|
* ieee - A reference to the IEE802.15.4 network device state
|
|
|
|
* ipv6 - The IPv6 header to be compressed
|
2017-04-02 02:24:21 +02:00
|
|
|
* destmac - L2 destination address, needed to compress the IP
|
2017-04-02 18:06:31 +02:00
|
|
|
* destination field
|
2017-04-04 20:31:22 +02:00
|
|
|
* fptr - Pointer to frame to be compressed.
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC1
|
2017-04-01 17:07:16 +02:00
|
|
|
void sixlowpan_compresshdr_hc1(FAR struct ieee802154_driver_s *ieee,
|
2017-04-02 18:06:31 +02:00
|
|
|
FAR const struct ipv6_hdr_s *ipv6,
|
2017-04-02 02:24:21 +02:00
|
|
|
FAR const struct rimeaddr_s *destmac,
|
2017-04-04 15:22:59 +02:00
|
|
|
FAR uint8_t *fptr);
|
2017-03-30 02:07:52 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: sixlowpan_uncompresshdr_hc1
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Uncompress HC1 (and HC_UDP) headers and put them in sixlowpan_buf
|
|
|
|
*
|
|
|
|
* This function is called by the input function when the dispatch is
|
|
|
|
* HC1. It processes the packet in the rime buffer, uncompresses the
|
|
|
|
* header fields, and copies the result in the sixlowpan buffer. At the
|
2017-04-04 15:22:59 +02:00
|
|
|
* end of the decompression, g_frame_hdrlen and uncompressed_hdr_len
|
2017-03-30 02:07:52 +02:00
|
|
|
* are set to the appropriate values
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
2017-04-01 17:07:16 +02:00
|
|
|
* ieee - A reference to the IEE802.15.4 network device state
|
2017-03-30 02:07:52 +02:00
|
|
|
* iplen - Equal to 0 if the packet is not a fragment (IP length is then
|
2017-04-02 16:08:35 +02:00
|
|
|
* inferred from the L2 length), non 0 if the packet is a first
|
2017-03-30 02:07:52 +02:00
|
|
|
* fragment.
|
2017-04-04 15:22:59 +02:00
|
|
|
* iob - Pointer to the IOB containing the received frame.
|
2017-04-08 17:34:30 +02:00
|
|
|
* fptr - Pointer to frame to be uncompressed.
|
2017-03-30 02:07:52 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC1
|
2017-04-04 01:04:56 +02:00
|
|
|
int sixlowpan_uncompresshdr_hc1(FAR struct ieee802154_driver_s *ieee,
|
2017-04-04 15:22:59 +02:00
|
|
|
uint16_t ip_len, FAR struct iob_s *iob,
|
2017-04-08 17:34:30 +02:00
|
|
|
FAR uint8_t *fptr);
|
2017-03-30 02:07:52 +02:00
|
|
|
#endif
|
|
|
|
|
2017-04-01 21:42:00 +02:00
|
|
|
/****************************************************************************
|
2017-04-01 23:05:38 +02:00
|
|
|
* Name: sixlowpan_islinklocal, sixlowpan_ipfromrime, sixlowpan_rimefromip,
|
|
|
|
* and sixlowpan_ismacbased
|
2017-04-01 21:42:00 +02:00
|
|
|
*
|
|
|
|
* Description:
|
2017-04-02 18:06:31 +02:00
|
|
|
* sixlowpan_ipfromrime: Create a link local IPv6 address from a rime
|
2017-04-01 23:05:38 +02:00
|
|
|
* address.
|
2017-04-01 21:42:00 +02:00
|
|
|
*
|
2017-04-01 23:05:38 +02:00
|
|
|
* sixlowpan_rimefromip: Extract the rime address from a link local IPv6
|
|
|
|
* address.
|
|
|
|
*
|
|
|
|
* sixlowpan_islinklocal and sixlowpan_ismacbased will return true for
|
|
|
|
* address created in this fashion.
|
2017-04-01 21:42:00 +02:00
|
|
|
*
|
|
|
|
* 128 112 96 80 64 48 32 16
|
|
|
|
* ---- ---- ---- ---- ---- ---- ---- ----
|
2017-04-01 23:05:38 +02:00
|
|
|
* fe80 0000 0000 0000 xxxx 0000 0000 0000 2-byte Rime address (VALID?)
|
2017-04-01 21:42:00 +02:00
|
|
|
* fe80 0000 0000 0000 xxxx xxxx xxxx xxxx 8-byte Rime address
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2017-04-04 01:04:56 +02:00
|
|
|
#define sixlowpan_islinklocal(ipaddr) ((ipaddr)[0] == NTOHS(0xfe80))
|
2017-04-01 23:05:38 +02:00
|
|
|
|
2017-04-01 21:42:00 +02:00
|
|
|
void sixlowpan_ipfromrime(FAR const struct rimeaddr_s *rime,
|
|
|
|
net_ipv6addr_t ipaddr);
|
|
|
|
void sixlowpan_rimefromip(const net_ipv6addr_t ipaddr,
|
|
|
|
FAR struct rimeaddr_s *rime);
|
2017-04-01 23:05:38 +02:00
|
|
|
bool sixlowpan_ismacbased(const net_ipv6addr_t ipaddr,
|
|
|
|
FAR const struct rimeaddr_s *rime);
|
2017-04-01 21:42:00 +02:00
|
|
|
|
2017-03-30 02:07:52 +02:00
|
|
|
#endif /* CONFIG_NET_6LOWPAN */
|
|
|
|
#endif /* _NET_SIXLOWPAN_SIXLOWPAN_INTERNAL_H */
|