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Move common 6LoWPAN code to new file lopwan6_common.c
This is mainly IPHC (de)compression. TODO: adapt the 6LoWPAN-over-BLE netif to this. Signed-off-by: goldsimon <goldsimon@gmx.de>
This commit is contained in:
goldsimon
@@ -39,14 +39,6 @@
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#include "lwip/opt.h"
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/** Helper define for a MAC address, which can be encoded as 0, 2 or 8 bytes */
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struct ieee_802154_addr {
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/* encoded length of the address */
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u8_t addr_len;
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/* address bytes */
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u8_t addr[8];
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};
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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@@ -44,8 +44,9 @@
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#include "netif/lowpan6_opts.h"
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#if LWIP_IPV6 && LWIP_6LOWPAN /* don't build if not configured for use in lwipopts.h */
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#if LWIP_IPV6
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#include "netif/lowpan6_common.h"
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#include "lwip/pbuf.h"
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#include "lwip/ip.h"
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#include "lwip/ip_addr.h"
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@@ -83,6 +84,6 @@ err_t tcpip_6lowpan_input(struct pbuf *p, struct netif *inp);
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}
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#endif
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#endif /* LWIP_IPV6 && LWIP_6LOWPAN */
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#endif /* LWIP_IPV6 */
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#endif /* LWIP_HDR_LOWPAN6_H */
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82
src/include/netif/lowpan6_common.h
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82
src/include/netif/lowpan6_common.h
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@@ -0,0 +1,82 @@
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/**
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* @file
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*
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* Common 6LowPAN routines for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units.
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*/
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/*
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* Copyright (c) 2015 Inico Technologies Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF 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) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Ivan Delamer <delamer@inicotech.com>
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*
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*
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* Please coordinate changes and requests with Ivan Delamer
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* <delamer@inicotech.com>
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*/
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#ifndef LWIP_HDR_LOWPAN6_COMMON_H
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#define LWIP_HDR_LOWPAN6_COMMON_H
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#include "netif/lowpan6_opts.h"
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#if LWIP_IPV6 /* don't build if IPv6 is disabled in lwipopts.h */
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#include "lwip/pbuf.h"
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#include "lwip/ip.h"
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#include "lwip/ip6_addr.h"
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#include "lwip/netif.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Helper define for a link layer address, which can be encoded as 0, 2 or 8 bytes */
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struct lowpan6_link_addr {
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/* encoded length of the address */
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u8_t addr_len;
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/* address bytes */
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u8_t addr[8];
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};
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s8_t lowpan6_get_address_mode(const ip6_addr_t *ip6addr, const struct lowpan6_link_addr *mac_addr);
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#if LWIP_6LOWPAN_IPHC
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err_t lowpan6_compress_headers(struct netif *netif, u8_t *inbuf, size_t inbuf_size, u8_t *outbuf, size_t outbuf_size,
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u8_t *lowpan6_header_len_out, u8_t *hidden_header_len_out, ip6_addr_t *lowpan6_contexts,
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const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst);
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struct pbuf *lowpan6_decompress(struct pbuf *p, u16_t datagram_size, ip6_addr_t *lowpan6_contexts,
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struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest);
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#endif /* LWIP_6LOWPAN_IPHC */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_IPV6 */
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#endif /* LWIP_HDR_LOWPAN6_COMMON_H */
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@@ -43,32 +43,51 @@
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#include "lwip/opt.h"
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#ifndef LWIP_6LOWPAN
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#define LWIP_6LOWPAN 0
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#endif
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/** LWIP_6LOWPAN_NUM_CONTEXTS: define the number of compression
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* contexts per netif type
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*/
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#ifndef LWIP_6LOWPAN_NUM_CONTEXTS
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#define LWIP_6LOWPAN_NUM_CONTEXTS 10
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#endif
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/** LWIP_6LOWPAN_INFER_SHORT_ADDRESS: set this to 0 to disable creating
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* short addresses for matching addresses (debug only)
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*/
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#ifndef LWIP_6LOWPAN_INFER_SHORT_ADDRESS
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#define LWIP_6LOWPAN_INFER_SHORT_ADDRESS 1
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#endif
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/** LWIP_6LOWPAN_IPHC: set this to 0 to disable IP header compression as per
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* RFC 6282 (which is mandatory for BLE)
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*/
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#ifndef LWIP_6LOWPAN_IPHC
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#define LWIP_6LOWPAN_IPHC 1
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#endif
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#ifndef LWIP_6LOWPAN_HW_CRC
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#define LWIP_6LOWPAN_HW_CRC 0
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/** Set this to 1 if your IEEE 802.15.4 interface can calculate and check the
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* CRC in hardware. This means TX packets get 2 zero bytes added on transmission
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* which are to be filled with the CRC.
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*/
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#ifndef LWIP_6LOWPAN_802154_HW_CRC
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#define LWIP_6LOWPAN_802154_HW_CRC 0
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#endif
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/** If LWIP_6LOWPAN_802154_HW_CRC==0, this can override the default slow
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* implementation of the CRC used for 6LoWPAN over IEEE 802.15.4 (which uses
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* a shift register).
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*/
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#ifndef LWIP_6LOWPAN_CALC_CRC
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#define LWIP_6LOWPAN_CALC_CRC(buf, len) lowpan6_calc_crc(buf, len)
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#endif
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#ifndef LOWPAN6_DEBUG
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#define LOWPAN6_DEBUG LWIP_DBG_OFF
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/** Debug level for 6LoWPAN in general */
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#ifndef LWIP_LOWPAN6_DEBUG
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#define LWIP_LOWPAN6_DEBUG LWIP_DBG_OFF
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#endif
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/** Debug level for 6LoWPAN over IEEE 802.15.4 */
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#ifndef LWIP_LOWPAN6_802154_DEBUG
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#define LWIP_LOWPAN6_802154_DEBUG LWIP_DBG_OFF
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#endif
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#endif /* LWIP_HDR_LOWPAN6_OPTS_H */
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@@ -43,7 +43,7 @@
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#include "lwip/opt.h"
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#include "netif/lowpan6.h"
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#if LWIP_IPV6 && LWIP_6LOWPAN /* don't build if not configured for use in lwipopts.h */
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#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
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#include "lwip/netif.h"
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@@ -76,6 +76,6 @@ err_t zepif_init(struct netif *netif);
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}
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#endif
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#endif /* LWIP_IPV6 && LWIP_6LOWPAN */
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#endif /* LWIP_IPV6 */
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#endif /* LWIP_HDR_ZEPIF_H */
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