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12cd62c689
This implementation is based on RFC 6550 with addition of RFC 6554 (Source Routing Header for RPL). Both can be found under the following links: - http://tools.ietf.org/html/rfc6550 - http://tools.ietf.org/html/rfc6554 The PR provides basic functionality for handling and forwarding packages in non-storing mode. In addition the structure of the previous implemented RPL storing mode is now revised, so that readability and modularity is increased. The following features are implemented: - building function for a SRH and integration in common packets - source-route build algorithm based on the structure of the DODAG - an RPL-based interpretation of the SRH and removal at destination - new structure for RPl-module with extracted beaconing-functionality - leaf nodes are now supported There are some missed goals and should be included in future updates: - building a common routing table structure for different types of routing protocols - routing tables are statically assigned via source code, future update should have an optional variable at build-time, which sets the size of the routing table depending on the desired functionality of a node in the network (root, node, leaf)
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* Copyright (C) 2013 Stephan Arndt <arndtste@zedat.fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup rpl
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* @{
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* @file of_mrhof.h
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* @brief Objective Function MRHOF.
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*
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* Header-file, which defines all functions for the implementation of Objective Function MRHOF.
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*
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* @author Eric Engel <eric.engel@fu-berlin.de>
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* @}
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*/
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#ifndef OF_MRHOF_H
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#define OF_MRHOF_H
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#include "rpl/rpl_structs.h"
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#include "rpl/rpl_config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Disallow links with greater than 4 expected
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* transmission counts on the selected path.
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*/
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#define MAX_LINK_METRIC (512)
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/**
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* Disallow paths with greater than 256
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* expected transmission counts.
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*/
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#define MAX_PATH_COST (0x8000)
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/**
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* Switch to a new path only if it is
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* expected to require at least 1.5 fewer transmissions than the
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* current path.
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*/
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#define PARENT_SWITCH_THRESHOLD (192)
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/**
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* Do not allow a node to become a floating root.
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* (Currently unused, since the RPL-implementation does not allow for floating
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* roots).
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*/
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#define ALLOW_FLOATING_ROOT (0)
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/**
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* While assigning Rank when using ETX, use the representation of ETX described
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* in [RFC6551], i.e., assign Rank equal to ETX * 128.
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*/
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#define ETX_RANK_MULTIPLIER (0x80)
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rpl_of_t *rpl_get_of_mrhof(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* OF_MRHOF_H */
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