diff options
Diffstat (limited to 'FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h')
| -rw-r--r-- | FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h b/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h index 363fca425..3615b68b5 100644 --- a/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h +++ b/FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/include/FreeRTOS_ARP.h @@ -1,5 +1,5 @@ /* - * FreeRTOS+TCP V2.2.0 + * FreeRTOS+TCP V2.2.1 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy of @@ -42,7 +42,7 @@ extern "C" { typedef struct xARP_CACHE_TABLE_ROW { uint32_t ulIPAddress; /* The IP address of an ARP cache entry. */ - MACAddress_t xMACAddress; /* The MAC address of an ARP cache entry. */ + MACAddress_t xMACAddress; /* The MAC address of an ARP cache entry. */ uint8_t ucAge; /* A value that is periodically decremented but can also be refreshed by active communication. The ARP cache entry is removed if the value reaches zero. */ uint8_t ucValid; /* pdTRUE: xMACAddress is valid, pdFALSE: waiting for ARP reply */ } ARPCacheRow_t; @@ -54,13 +54,6 @@ typedef enum eCantSendPacket /* 2 There is no IP address, or an ARP is still in progress, so the packet cannot be sent. */ } eARPLookupResult_t; -typedef enum -{ - eNotFragment = 0, /* The IP packet being sent is not part of a fragment. */ - eFirstFragment, /* The IP packet being sent is the first in a set of fragmented packets. */ - eFollowingFragment /* The IP packet being sent is part of a set of fragmented packets. */ -} eIPFragmentStatus_t; - /* * If ulIPAddress is already in the ARP cache table then reset the age of the * entry back to its maximum value. If ulIPAddress is not already in the ARP @@ -121,6 +114,23 @@ void vARPGenerateRequestPacket( NetworkBufferDescriptor_t * const pxNetworkBuffe */ void vARPSendGratuitous( void ); +/* This function will check if the target IP-address belongs to this device. +If so, the packet will be passed to the IP-stack, who will answer it. +The function is to be called within the function xNetworkInterfaceOutput() +in NetworkInterface.c as follows: + + if( xCheckLoopback( pxDescriptor, bReleaseAfterSend ) != 0 ) + { + / * The packet has been sent back to the IP-task. + * The IP-task will further handle it. + * Do not release the descriptor. + * / + return pdTRUE; + } + / * Send the packet as usual. * / +*/ +BaseType_t xCheckLoopback( NetworkBufferDescriptor_t * const pxDescriptor, BaseType_t bReleaseAfterSend ); + #ifdef __cplusplus } // extern "C" #endif |