57a0c55dac
Fragmentation has nothing to do with 6lo. Up to the bearer to do so. This change is required for futur serialization of 15.4 fragmentation. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/** @file
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@brief 6lowpan handler
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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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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __NET_6LO_H
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#define __NET_6LO_H
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#include <misc/slist.h>
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#include <zephyr/types.h>
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#include <net/net_pkt.h>
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#include "icmpv6.h"
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#if defined(CONFIG_NET_6LO)
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/**
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* @brief Compress IPv6 packet as per RFC 6282
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*
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* @details After this IPv6 packet and next header(if UDP), headers
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* are compressed as per RFC 6282. After header compression data
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* will be adjusted according to remaining space in fragments.
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*
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* @param Pointer to network packet
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* @param iphc true for IPHC compression, false for IPv6 dispatch header
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*
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* @return header size difference on success (>= 0), negative errno otherwise
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*/
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int net_6lo_compress(struct net_pkt *pkt, bool iphc);
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/**
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* @brief Uncompress IPv6 packet as per RFC 6282
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*
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* @details After this IPv6 packet and next header(if UDP), headers
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* are uncompressed as per RFC 6282. After header uncompression data
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* will be adjusted according to remaining space in fragments.
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*
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* @param Pointer to network packet
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*
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* @return True on success, false otherwise
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*/
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bool net_6lo_uncompress(struct net_pkt *pkt);
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/**
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* @brief Set 6lowpan context information
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*
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* @details Set 6lowpan context information. This context information
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* will be used in IPv6 header compression and uncompression.
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*
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* @return True on success, false otherwise
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*/
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#if defined(CONFIG_NET_6LO_CONTEXT)
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void net_6lo_set_context(struct net_if *iface,
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struct net_icmpv6_nd_opt_6co *context);
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#endif
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#else
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static inline int net_6lo_compress(struct net_pkt *pkt, bool iphc)
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{
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ARG_UNUSED(pkt);
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ARG_UNUSED(iphc);
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return 0;
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}
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static inline bool net_6lo_uncompress(struct net_pkt *pkt)
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{
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ARG_UNUSED(pkt);
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return true;
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}
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#endif /* CONFIG_NET_6LO */
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#endif /* __NET_6LO_H */
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