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Changes after Gary's comments

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This commit is contained in:
AniruddhaKanhere
2020-04-13 13:50:53 -07:00
committed by Yuhui Zheng
parent edf68637dd
commit 5b3a289b69
1 changed files with 19 additions and 23 deletions
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42
FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/FreeRTOS_ARP.c
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@ -85,28 +85,6 @@ static TickType_t xLastGratuitousARPTime = ( TickType_t ) 0;
MACAddress_t xARPClashMacAddress; MACAddress_t xARPClashMacAddress;
#endif /* ipconfigARP_USE_CLASH_DETECTION */ #endif /* ipconfigARP_USE_CLASH_DETECTION */
/* Part of the Ethernet and ARP headers are always constant when sending an IPv4
* ARP packet. This array defines the constant parts, allowing this part of the
* packet to be filled in using a simple memcpy() instead of individual writes. */
/* Rule has been relaxed since this is a configuration parameter. And this location provides
* more readability. */
/* coverity[misra_c_2012_rule_8_9_violation] */
static const uint8_t xDefaultPartARPPacketHeader[] =
{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* Ethernet destination address. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Ethernet source address. */
0x08, 0x06, /* Ethernet frame type (ipARP_FRAME_TYPE). */
0x00, 0x01, /* usHardwareType (ipARP_HARDWARE_TYPE_ETHERNET). */
0x08, 0x00, /* usProtocolType. */
ipMAC_ADDRESS_LENGTH_BYTES, /* ucHardwareAddressLength. */
ipIP_ADDRESS_LENGTH_BYTES, /* ucProtocolAddressLength. */
0x00, 0x01, /* usOperation (ipARP_REQUEST). */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* xSenderHardwareAddress. */
0x00, 0x00, 0x00, 0x00, /* ulSenderProtocolAddress. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* xTargetHardwareAddress. */
};
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
eFrameProcessingResult_t eARPProcessPacket( ARPPacket_t * const pxARPFrame ) eFrameProcessingResult_t eARPProcessPacket( ARPPacket_t * const pxARPFrame )
@ -269,7 +247,7 @@ uint8_t ucMinAgeFound = 0U;
} }
/* Found an entry containing ulIPAddress, but the MAC address /* Found an entry containing ulIPAddress, but the MAC address
* doesn't match. Might be an entry with ucValid=pdFALSE, waiting * doesn't match. Might be an entry with ucValid==pdFALSE, waiting
* for an ARP reply. Still want to see if there is match with the * for an ARP reply. Still want to see if there is match with the
* given MAC address.ucBytes. If found, either of the two entries * given MAC address.ucBytes. If found, either of the two entries
* must be cleared. */ * must be cleared. */
@ -631,6 +609,24 @@ void vARPGenerateRequestPacket( NetworkBufferDescriptor_t * const pxNetworkBuffe
{ {
ARPPacket_t *pxARPPacket; ARPPacket_t *pxARPPacket;
/* Part of the Ethernet and ARP headers are always constant when sending an IPv4
* ARP packet. This array defines the constant parts, allowing this part of the
* packet to be filled in using a simple memcpy() instead of individual writes. */
static const uint8_t xDefaultPartARPPacketHeader[] =
{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* Ethernet destination address. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Ethernet source address. */
0x08, 0x06, /* Ethernet frame type (ipARP_FRAME_TYPE). */
0x00, 0x01, /* usHardwareType (ipARP_HARDWARE_TYPE_ETHERNET). */
0x08, 0x00, /* usProtocolType. */
ipMAC_ADDRESS_LENGTH_BYTES, /* ucHardwareAddressLength. */
ipIP_ADDRESS_LENGTH_BYTES, /* ucProtocolAddressLength. */
0x00, 0x01, /* usOperation (ipARP_REQUEST). */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* xSenderHardwareAddress. */
0x00, 0x00, 0x00, 0x00, /* ulSenderProtocolAddress. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* xTargetHardwareAddress. */
};
/* Buffer allocation ensures that buffers always have space /* Buffer allocation ensures that buffers always have space
* for an ARP packet. See buffer allocation implementations 1 * for an ARP packet. See buffer allocation implementations 1
* and 2 under portable/BufferManagement. */ * and 2 under portable/BufferManagement. */