nwkRoute.c File Reference

Routing implementation.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include "sysConfig.h"
#include "nwk.h"
#include "nwkTx.h"
#include "nwkFrame.h"
#include "nwkRoute.h"
#include "nwkGroup.h"
#include "nwkCommand.h"
#include "nwkRouteDiscovery.h"

Macros
#define	NWK_ROUTE_DEFAULT_RANK   128
#define	NWK_ROUTE_MAX_RANK   255

Functions
NWK_RouteTableEntry_t *	NWK_RouteFindEntry (uint16_t dst, uint8_t multicast)
void	NWK_RouteFreeEntry (NWK_RouteTableEntry_t *entry)
NWK_RouteTableEntry_t *	NWK_RouteNewEntry (void)
uint16_t	NWK_RouteNextHop (uint16_t dst, uint8_t multicast)
NWK_RouteTableEntry_t *	NWK_RouteTable (void)
bool	nwkRouteErrorReceived (NWK_DataInd_t *ind)
void	nwkRouteFrame (NwkFrame_t *frame)
void	nwkRouteFrameReceived (NwkFrame_t *frame)
void	nwkRouteFrameSent (NwkFrame_t *frame)
void	nwkRouteInit (void)
	Initializes the Routing module. More...
static void	nwkRouteNormalizeRanks (void)
void	nwkRoutePrepareTx (NwkFrame_t *frame)
void	nwkRouteRemove (uint16_t dst, uint8_t multicast)
static void	nwkRouteSendRouteError (uint16_t src, uint16_t dst, uint8_t multicast)
void	nwkRouteUpdateEntry (uint16_t dst, uint8_t multicast, uint16_t nextHop, uint8_t lqi)

Variables
static NWK_RouteTableEntry_t	nwkRouteTable [NWK_ROUTE_TABLE_SIZE]

#define NWK_ROUTE_DEFAULT_RANK   128

Referenced by NWK_RouteNewEntry(), and nwkRouteUpdateEntry().

#define NWK_ROUTE_MAX_RANK   255

Referenced by nwkRouteFrameSent().

NWK_RouteTableEntry_t* NWK_RouteFindEntry	(	uint16_t	dst,
		uint8_t	multicast
	)

References NWK_ROUTE_TABLE_SIZE, and nwkRouteTable.

Referenced by NWK_RouteNextHop(), nwkRouteFrameReceived(), nwkRouteFrameSent(), nwkRouteRemove(), and nwkRouteUpdateEntry().

void NWK_RouteFreeEntry

(

NWK_RouteTableEntry_t *

entry

)

References NWK_ROUTE_UNKNOWN.

Referenced by nwkRouteFrameSent(), and nwkRouteRemove().

NWK_RouteTableEntry_t* NWK_RouteNewEntry

(

void

)

References NWK_ROUTE_DEFAULT_RANK, NWK_ROUTE_DEFAULT_SCORE, NWK_ROUTE_TABLE_SIZE, and nwkRouteTable.

Referenced by nwkRouteFrameReceived(), and nwkRouteUpdateEntry().

uint16_t NWK_RouteNextHop	(	uint16_t	dst,
		uint8_t	multicast
	)

References NWK_ROUTE_UNKNOWN, and NWK_RouteFindEntry().

Referenced by nwkRouteFrame(), and nwkRoutePrepareTx().

NWK_RouteTableEntry_t* NWK_RouteTable

(

void

)

References nwkRouteTable.

bool nwkRouteErrorReceived

(

NWK_DataInd_t *

ind

)

References NWK_DataInd_t::data, NwkCommandRouteError_t::dstAddr, if(), NwkCommandRouteError_t::multicast, nwkRouteRemove(), and NWK_DataInd_t::size.

Referenced by nwkRxSeriveDataInd().

void nwkRouteFrame

(

NwkFrame_t *

frame

)

References NwkFrame_t::header, NwkFrameHeader_t::multicast, NWK_ROUTE_UNKNOWN, NWK_RouteNextHop(), NWK_TX_CONTROL_ROUTING, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkFrameFree(), nwkRouteSendRouteError(), NwkFrameHeader_t::nwkSrcAddr, nwkTxFrame(), and NwkFrame_t::tx.

Referenced by nwkRxTaskHandler().

void nwkRouteFrameReceived

(

NwkFrame_t *

frame

)

References NwkIb_t::addr, NwkFrame_t::header, NwkFrameHeader_t::macDstAddr, NwkFrameHeader_t::macDstPanId, NwkFrameHeader_t::macSrcAddr, NWK_BROADCAST_ADDR, NWK_BROADCAST_PANID, NWK_ROUTE_DEFAULT_SCORE, NWK_ROUTE_NON_ROUTING, NWK_RouteFindEntry(), NWK_RouteNewEntry(), NwkFrameHeader_t::nwkDstAddr, nwkIb, NwkFrameHeader_t::nwkSrcAddr, and NwkFrame_t::rx.

Referenced by nwkRxHandleReceivedFrame().

void nwkRouteFrameSent

(

NwkFrame_t *

frame

)

References NwkFrame_t::header, NwkFrameHeader_t::multicast, NWK_BROADCAST_ADDR, NWK_ROUTE_DEFAULT_SCORE, NWK_ROUTE_MAX_RANK, NWK_RouteFindEntry(), NWK_RouteFreeEntry(), NWK_SUCCESS_STATUS, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkRouteNormalizeRanks(), and NwkFrame_t::tx.

Referenced by nwkTxTaskHandler().

void nwkRouteInit

(

void

)

Initializes the Routing module.

References NWK_ROUTE_TABLE_SIZE, NWK_ROUTE_UNKNOWN, and nwkRouteTable.

Referenced by NWK_Init().

static void nwkRouteNormalizeRanks ( void  )

static

References NWK_ROUTE_TABLE_SIZE, and nwkRouteTable.

Referenced by nwkRouteFrameSent().

void nwkRoutePrepareTx

(

NwkFrame_t *

frame

)

References NwkFrame_t::header, NwkFrameHeader_t::linkLocal, NwkFrameHeader_t::macDstAddr, NwkFrameHeader_t::multicast, NWK_BROADCAST_ADDR, NWK_ROUTE_UNKNOWN, NWK_RouteNextHop(), NwkFrameHeader_t::nwkDstAddr, and NwkFrameHeader_t::nwkFcf.

Referenced by nwkTxFrame().

void nwkRouteRemove	(	uint16_t	dst,
		uint8_t	multicast
	)

References NWK_RouteFindEntry(), and NWK_RouteFreeEntry().

Referenced by nwkRouteErrorReceived(), and nwkRxRejectDuplicate().

static void nwkRouteSendRouteError ( uint16_t  src, uint16_t  dst, uint8_t  multicast  )

static

References NwkCommandRouteError_t::dstAddr, NwkFrame_t::header, NwkCommandRouteError_t::id, NwkCommandRouteError_t::multicast, NWK_COMMAND_ROUTE_ERROR, NwkFrameHeader_t::nwkDstAddr, nwkFrameAlloc(), nwkFrameCommandInit(), nwkTxFrame(), NwkFrame_t::payload, NwkFrame_t::size, NwkCommandRouteError_t::srcAddr, and NwkFrame_t::tx.

Referenced by nwkRouteFrame().

void nwkRouteUpdateEntry	(	uint16_t	dst,
		uint8_t	multicast,
		uint16_t	nextHop,
		uint8_t	lqi
	)

References NwkFrame_t::lqi, NWK_ROUTE_DEFAULT_RANK, NWK_ROUTE_DEFAULT_SCORE, NWK_RouteFindEntry(), and NWK_RouteNewEntry().

NWK_RouteTableEntry_t nwkRouteTable[NWK_ROUTE_TABLE_SIZE]

static

Referenced by NWK_RouteFindEntry(), NWK_RouteNewEntry(), NWK_RouteTable(), nwkRouteInit(), and nwkRouteNormalizeRanks().