#include "NetSim_utility.h"

Include dependency graph for ARP.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	stru_Arp_Packet
	This Arp packet structure is according to RFC 826. More...

struct	stru_ARP_Table

struct	stru_ArpDataPacket_Buffer

struct	stru_ARP_Metrics

struct	stru_ARP_Interface_Variables

struct	stru_ARP_Static_Table_Configuration
	Structure for Static ARP Table configuration. More...

Macros
#define	DEFAULT_ARP_RETRY_INTERVAL 10

#define	DEFAULT_ARP_RETRY_LIMIT 3

#define	HARDWARE_ADDRESS_LENGTH 6
	Lenghth of 48 bit MAC address in bytes. More...

#define	ARP_ETHERNET_HEADER_LENGTH 14
	Bytes :6(Dest Mac add)+6(src Mac add)+2(frame type). More...

#define	IPV4_PROTOCOL_ADDREES_LENGTH 4
	Length of 32 bit IP address in bytes. More...

#define	IPV4_ARP_PACKET_SIZE 28
	Bytes:2(H/Wtype)+2(ProtocolType)+1(H/Wlength)+1(ProtocolLength)+ 2(opcode)+6(srcMac)+4(srcIP)+6(TargetMac)+4(TargetIP). More...

#define	IPV4_ARP_PACKET_SIZE_WITH_ETH_HEADER 42
	ARP frame size in Bytes: 28 + 14. More...

#define	IPV4_NETWORK_OVERHEADS 20
	In bytes for IPV4. More...

#define	IPV6_PROTOCOL_ADDREES_LENGTH 16
	Length of 128 bit IP address in bytes. More...

#define	IPV6_ARP_PACKET_SIZE 52
	bytes:2(H/Wtype)+2(ProtocolType)+1(H/Wlength)+1(ProtocolLength)+ 2(opcode)+6(srcMac)+16(srcIP)+6(TargetMac)+16(TargetIP). More...

#define	IPV6_ARP_PACKET_SIZE_WITH_ETH_HEADER 66
	ARP frame size in Bytes: 52 + 14. More...

#define	IPV6_NETWORK_OVERHEADS 40
	In bytes for IPV6 (320 bits). More...

Typedefs
typedef struct stru_ARP_Table	ARP_TABLE

typedef struct stru_Arp_Packet	ARP_PACKET

typedef struct stru_ARP_Interface_Variables	ARP_VARIABLES

typedef struct stru_ArpDataPacket_Buffer	ARP_BUFFER

typedef struct stru_ARP_Metrics	ARP_METRICS

typedef struct stru_ARP_Static_Table_Configuration	STATIC_TABLE_CONFIG

typedef enum enum_ARP_Subevent_Type	SUB_EVENT

typedef enum enum_ARP_opcode	OPCODE

typedef enum enum_ARP_EthernetFrameType	ETHERNET_TYPE

typedef enum enum_ARP_HardwareType	HARDWARETYPE

typedef enum enum_ARP_PrptocolType	PROTOCOLTYPE

typedef enum enum_ArpControlPacket_Type	ARP_CONTROL_PACKET

typedef enum enum_Transmission_Type	ARP_FRAME_TX_FLAG

typedef enum enum_ARP_Table_Entries_Type	ENTRY_TYPE

typedef enum enum_Static_Arp_Status	STATIC_ARP_STATUS

Enumerations
enum	enum_ARP_Subevent_Type { READ_ARP_TABLE = NW_PROTOCOL_ARP*100+1 , GENERATE_ARP_REQUEST , GENERATE_ARP_REPLY , UPDATE_ARP_TABLE_FWD_PKT , ARP_REQUEST_TIMEOUT }

enum	enum_ARP_opcode { ares_opSREQUEST =1 , ares_opSREPLY }

enum	enum_ARP_EthernetFrameType { ADDRESS_RESOLUTION = 0x8060 }

enum	enum_ARP_HardwareType { ETHERNET = 0x0001 , IEEE802 = 0x0006 }

enum	enum_ARP_PrptocolType { ARP_TO_RESOLVE_IP = 0x8000 }

enum	enum_ArpControlPacket_Type { REQUEST_PACKET = NW_PROTOCOL_ARP*100+1 , REPLY_PACKET }

enum	enum_ARP_Table_Entries_Type { STATIC , DYNAMIC }

enum	enum_Static_Arp_Status { DISABLE , ENABLE }

Functions
int	fn_NetSim_StaticArpTable_Read (char *pszARPstasticTablePath)
	Function to Read the static table and assign to the ARP_TABLE. More...

int	fn_NetSim_Add_IP_MAC_AddressTo_ARP_Table (ARP_TABLE **, NETSIM_IPAddress, PNETSIM_MACADDRESS, int)
	Function to add the new entry to the ARP_TABLE(IP add, MAC add and Type) More...

ARP_TABLE *	fn_Netsim_CopyArpTable (ARP_TABLE *)
	Function to Copy the ARP_TABLE from source to destination. Returm destination ARP Table head pointer reference. More...

void	fn_NetSim_DeleteArpTable (ARP_TABLE **)
	Function to Delete/ deallocate the memory assigned to the ARP_TABLE. More...

int	fn_Netsim_ARP_CheckDestinationDevice (NetSim_EVENTDETAILS , struct stru_NetSim_Network )

int	fn_NetSim_Arp_Drop_Buffered_Packet (NETSIM_ID nDeviceId, NETSIM_ID nInterfaceId, NETSIM_IPAddress szDestIPadd, int *nPacketDropCount)

int	fn_NetSim_Add_PacketTo_Buffer (NETSIM_ID nDeviceId, NetSim_PACKET *pstruNewPacket, NETSIM_IPAddress szDestIPadd, NETSIM_ID nInterfaceId)

int	fn_NetSim_ARP_Configure (void **var)
	Function for configuring ARP parameters. More...

int	fn_NetSim_ARP_Configure_F (void **var)

int	fn_NetSim_ARP_Init (struct stru_NetSim_Network NETWORK_Formal, NetSim_EVENTDETAILS pstruEventDetails_Formal, char pszAppPath_Formal, char pszWritePath_Formal, int nVersion_Type, void **fnPointer)
	Function for Intializing ARP protocol. More...

int	fn_NetSim_ARP_Init_F (struct stru_NetSim_Network , NetSim_EVENTDETAILS , char , char , int, void **fnPointer)

int	fn_NetSim_ARP_Run ()
	Function to run ARP protocol. More...

int	fn_NetSim_ARP_Finish ()
	Function to free the ARP protocol variable and Unload the primitives. More...

int	fn_NetSim_ARP_Finish_F ()

char *	fn_NetSim_ARP_Trace (int nSubEvent)
	Return the subevent name with respect to the subevent number for writting event trace. More...

char *	fn_NetSim_ARP_Trace_F (int nSubEvent)

int	fn_NetSim_ARP_FreePacket (NetSim_PACKET *)
	Function to free the allocated memory for the ARP packet. More...

int	fn_NetSim_ARP_FreePacket_F (NetSim_PACKET *)

int	fn_NetSim_ARP_CopyPacket (NetSim_PACKET , NetSim_PACKET )
	Function to copy the ARP packet from source to destination. More...

int	fn_NetSim_ARP_CopyPacket_F (NetSim_PACKET , NetSim_PACKET )

int	fn_NetSim_ARP_Metrics (char *)
	Function to write ARP Metrics into Metrics.txt. More...

int	fn_NetSim_ARP_Metrics_F (char *)

char *	fn_NetSim_ARP_ConfigPacketTrace ()

char *	fn_NetSim_ARP_WritePacketTrace (NetSim_PACKET pstruPacket, char *ppszTrace)

int	fn_NetSim_ipv4_network_check (char , char , char *)
	Function used to check the destination is in the same subnet or not from IPV4.lib. More...

int	fn_NetSim_Generate_ARP_Request (NetSim_EVENTDETAILS pstruEventDetails, struct stru_NetSim_Network NETWORK)

int	fn_NetSim_Read_ARP_Table (NetSim_EVENTDETAILS pstruEventDetails, struct stru_NetSim_Network NETWORK)

int	fn_NetSim_ARP_Request_Timeout (NetSim_EVENTDETAILS pstruEventDetails, struct stru_NetSim_Network NETWORK)

int	fn_NetSim_Generate_ARP_Reply (NetSim_EVENTDETAILS pstruEventDetails, struct stru_NetSim_Network NETWORK)

int	fn_NetSim_Update_ARP_Table_ForwardPacket (NetSim_EVENTDETAILS pstruEventDetails, struct stru_NetSim_Network NETWORK)

Variables
NETSIM_IPAddress	szBroadcastIPaddress

STATIC_TABLE_CONFIG *	g_pstruStaticTableConfig

Macro Definition Documentation

◆ ARP_ETHERNET_HEADER_LENGTH

#define ARP_ETHERNET_HEADER_LENGTH 14

Bytes :6(Dest Mac add)+6(src Mac add)+2(frame type).

Definition at line 25 of file ARP.h.

◆ DEFAULT_ARP_RETRY_INTERVAL

#define DEFAULT_ARP_RETRY_INTERVAL 10

Definition at line 20 of file ARP.h.

◆ DEFAULT_ARP_RETRY_LIMIT

#define DEFAULT_ARP_RETRY_LIMIT 3

Definition at line 21 of file ARP.h.

◆ HARDWARE_ADDRESS_LENGTH

#define HARDWARE_ADDRESS_LENGTH 6

Lenghth of 48 bit MAC address in bytes.

Definition at line 24 of file ARP.h.

◆ IPV4_ARP_PACKET_SIZE

#define IPV4_ARP_PACKET_SIZE 28

Bytes:2(H/Wtype)+2(ProtocolType)+1(H/Wlength)+1(ProtocolLength)+ 2(opcode)+6(srcMac)+4(srcIP)+6(TargetMac)+4(TargetIP).

Definition at line 27 of file ARP.h.

◆ IPV4_ARP_PACKET_SIZE_WITH_ETH_HEADER

#define IPV4_ARP_PACKET_SIZE_WITH_ETH_HEADER 42

ARP frame size in Bytes: 28 + 14.

Definition at line 28 of file ARP.h.

◆ IPV4_NETWORK_OVERHEADS

#define IPV4_NETWORK_OVERHEADS 20

In bytes for IPV4.

Definition at line 29 of file ARP.h.

◆ IPV4_PROTOCOL_ADDREES_LENGTH

#define IPV4_PROTOCOL_ADDREES_LENGTH 4

Length of 32 bit IP address in bytes.

Definition at line 26 of file ARP.h.

◆ IPV6_ARP_PACKET_SIZE

#define IPV6_ARP_PACKET_SIZE 52

bytes:2(H/Wtype)+2(ProtocolType)+1(H/Wlength)+1(ProtocolLength)+ 2(opcode)+6(srcMac)+16(srcIP)+6(TargetMac)+16(TargetIP).

Definition at line 31 of file ARP.h.

◆ IPV6_ARP_PACKET_SIZE_WITH_ETH_HEADER

#define IPV6_ARP_PACKET_SIZE_WITH_ETH_HEADER 66

ARP frame size in Bytes: 52 + 14.

Definition at line 32 of file ARP.h.

◆ IPV6_NETWORK_OVERHEADS

#define IPV6_NETWORK_OVERHEADS 40

In bytes for IPV6 (320 bits).

Definition at line 33 of file ARP.h.

◆ IPV6_PROTOCOL_ADDREES_LENGTH

#define IPV6_PROTOCOL_ADDREES_LENGTH 16

Length of 128 bit IP address in bytes.

Definition at line 30 of file ARP.h.

Typedef Documentation

◆ ARP_BUFFER

typedef struct stru_ArpDataPacket_Buffer ARP_BUFFER

Definition at line 40 of file ARP.h.

◆ ARP_CONTROL_PACKET

typedef enum enum_ArpControlPacket_Type ARP_CONTROL_PACKET

Definition at line 49 of file ARP.h.

◆ ARP_FRAME_TX_FLAG

typedef enum enum_Transmission_Type ARP_FRAME_TX_FLAG

Definition at line 50 of file ARP.h.

◆ ARP_METRICS

typedef struct stru_ARP_Metrics ARP_METRICS

Definition at line 41 of file ARP.h.

◆ ARP_PACKET

typedef struct stru_Arp_Packet ARP_PACKET

Definition at line 38 of file ARP.h.

◆ ARP_TABLE

typedef struct stru_ARP_Table ARP_TABLE

Definition at line 37 of file ARP.h.

◆ ARP_VARIABLES

typedef struct stru_ARP_Interface_Variables ARP_VARIABLES

Definition at line 39 of file ARP.h.

◆ ENTRY_TYPE

typedef enum enum_ARP_Table_Entries_Type ENTRY_TYPE

Definition at line 51 of file ARP.h.

◆ ETHERNET_TYPE

typedef enum enum_ARP_EthernetFrameType ETHERNET_TYPE

Definition at line 46 of file ARP.h.

◆ HARDWARETYPE

typedef enum enum_ARP_HardwareType HARDWARETYPE

Definition at line 47 of file ARP.h.

◆ OPCODE

typedef enum enum_ARP_opcode OPCODE

Definition at line 45 of file ARP.h.

◆ PROTOCOLTYPE

typedef enum enum_ARP_PrptocolType PROTOCOLTYPE

Definition at line 48 of file ARP.h.

◆ STATIC_ARP_STATUS

typedef enum enum_Static_Arp_Status STATIC_ARP_STATUS

Definition at line 52 of file ARP.h.

◆ STATIC_TABLE_CONFIG

typedef struct stru_ARP_Static_Table_Configuration STATIC_TABLE_CONFIG

Definition at line 42 of file ARP.h.

◆ SUB_EVENT

typedef enum enum_ARP_Subevent_Type SUB_EVENT

Definition at line 44 of file ARP.h.

Enumeration Type Documentation

◆ enum_ARP_EthernetFrameType

enum enum_ARP_EthernetFrameType

Enumeration for Ethernet frame type

Enumerator
ADDRESS_RESOLUTION

Definition at line 70 of file ARP.h.

◆ enum_ARP_HardwareType

enum enum_ARP_HardwareType

Enumeration for hardware type

Enumerator
ETHERNET
IEEE802

Definition at line 75 of file ARP.h.

◆ enum_ARP_opcode

enum enum_ARP_opcode

Enumeration for Operation code to specify Packet Type

Enumerator
ares_opSREQUEST
ares_opSREPLY

Definition at line 64 of file ARP.h.

◆ enum_ARP_PrptocolType

enum enum_ARP_PrptocolType

Enumeration for protocol type

Enumerator
ARP_TO_RESOLVE_IP

Definition at line 81 of file ARP.h.

◆ enum_ARP_Subevent_Type

enum enum_ARP_Subevent_Type

Enumeration for Sub event Type

Enumerator
READ_ARP_TABLE
GENERATE_ARP_REQUEST
GENERATE_ARP_REPLY
UPDATE_ARP_TABLE_FWD_PKT
ARP_REQUEST_TIMEOUT

Definition at line 55 of file ARP.h.

◆ enum_ARP_Table_Entries_Type

enum enum_ARP_Table_Entries_Type

Enumeration for ARP Table entries type

Enumerator
STATIC
DYNAMIC

Definition at line 92 of file ARP.h.

◆ enum_ArpControlPacket_Type

enum enum_ArpControlPacket_Type

Enumeration for ARP control packet type

Enumerator
REQUEST_PACKET
REPLY_PACKET

Definition at line 86 of file ARP.h.

◆ enum_Static_Arp_Status

enum enum_Static_Arp_Status

Enumeration for static ARP status

Enumerator
DISABLE
ENABLE

Definition at line 98 of file ARP.h.

Function Documentation

◆ fn_NetSim_Add_IP_MAC_AddressTo_ARP_Table()

int fn_NetSim_Add_IP_MAC_AddressTo_ARP_Table	(	ARP_TABLE **	,
		NETSIM_IPAddress	,
		PNETSIM_MACADDRESS	,
		int
	)

Function to add the new entry to the ARP_TABLE(IP add, MAC add and Type)

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◆ fn_NetSim_Add_PacketTo_Buffer()

int fn_NetSim_Add_PacketTo_Buffer	(	NETSIM_ID	nDeviceId,
		NetSim_PACKET *	pstruNewPacket,
		NETSIM_IPAddress	szDestIPadd,
		NETSIM_ID	nInterfaceId
	)

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◆ fn_Netsim_ARP_CheckDestinationDevice()

int fn_Netsim_ARP_CheckDestinationDevice	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

This function is called for NETWORK_IN_EVENT with packet type = REQUEST_PACKET. Check the request packet received device is the destination. If so it add the GENERATE ARP REPLY sub event, else update the table and drop the request packet.

Definition at line 176 of file Arp.c.

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◆ fn_NetSim_ARP_ConfigPacketTrace()

char * fn_NetSim_ARP_ConfigPacketTrace ( )

This function will return the string to write packet trace heading.

Definition at line 157 of file Arp.c.

◆ fn_NetSim_ARP_Configure()

int fn_NetSim_ARP_Configure ( void ** var )

Function for configuring ARP parameters.

This function is called by NetworkStack.dll, while configuring the device for ARP protocol.

Definition at line 128 of file Arp.c.

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◆ fn_NetSim_ARP_Configure_F()

int fn_NetSim_ARP_Configure_F ( void ** var )

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◆ fn_NetSim_ARP_CopyPacket()

int fn_NetSim_ARP_CopyPacket	(	NetSim_PACKET *	pstruDestPacket,
		NetSim_PACKET *	pstruSrcPacket
	)

Function to copy the ARP packet from source to destination.

This function is called by NetworkStack.dll, to copy the ARP protocol details from source packet to destination.

Definition at line 143 of file Arp.c.

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◆ fn_NetSim_ARP_CopyPacket_F()

int fn_NetSim_ARP_CopyPacket_F	(	NetSim_PACKET *	,
		NetSim_PACKET *
	)

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◆ fn_NetSim_Arp_Drop_Buffered_Packet()

int fn_NetSim_Arp_Drop_Buffered_Packet	(	NETSIM_ID	nDeviceId,
		NETSIM_ID	nInterfaceId,
		NETSIM_IPAddress	szDestIPadd,
		int *	nPacketDropCount
	)

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◆ fn_NetSim_ARP_Finish()

int fn_NetSim_ARP_Finish ( )

Function to free the ARP protocol variable and Unload the primitives.

This function is called by NetworkStack.dll, once simulation end to free the allocated memory for the network.

Definition at line 111 of file Arp.c.

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◆ fn_NetSim_ARP_Finish_F()

int fn_NetSim_ARP_Finish_F ( )

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◆ fn_NetSim_ARP_FreePacket()

int fn_NetSim_ARP_FreePacket ( NetSim_PACKET * pstruPacket )

Function to free the allocated memory for the ARP packet.

This function is called by NetworkStack.dll, to free the ARP protocol.

Definition at line 135 of file Arp.c.

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◆ fn_NetSim_ARP_FreePacket_F()

int fn_NetSim_ARP_FreePacket_F ( NetSim_PACKET * )

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◆ fn_NetSim_ARP_Init()

int fn_NetSim_ARP_Init	(	struct stru_NetSim_Network *	NETWORK_Formal,
		NetSim_EVENTDETAILS *	pstruEventDetails_Formal,
		char *	pszAppPath_Formal,
		char *	pszWritePath_Formal,
		int	nVersion_Type,
		void **	fnPointer
	)

Function for Intializing ARP protocol.

The Following functions are present in the Arp.lib.
so NetworkStack.dll can not call Arp.lib. It is calling Arp.dll.
From Arp.dll, Arp.lib functions are called.

Definition at line 99 of file Arp.c.

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◆ fn_NetSim_ARP_Init_F()

int fn_NetSim_ARP_Init_F	(	struct stru_NetSim_Network *	,
		NetSim_EVENTDETAILS *	,
		char *	,
		char *	,
		int	,
		void **	fnPointer
	)

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◆ fn_NetSim_ARP_Metrics()

int fn_NetSim_ARP_Metrics ( char * )

Function to write ARP Metrics into Metrics.txt.

◆ fn_NetSim_ARP_Metrics_F()

int fn_NetSim_ARP_Metrics_F ( char * )

◆ fn_NetSim_ARP_Request_Timeout()

int fn_NetSim_ARP_Request_Timeout	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

Function: ARP Request Timeout 
When we generate Arp Request, we will add the Timeout event with the present 
event time + ARP_RETRY_INTERVAL. At that time this function is called.
Do the following to generate Request
1. Check the destination entry present in the table and set nDestinationPresentFlag. 
2. if nDestinationPresentFlag =0 Check RetryCont<RetryLimit.
3. if true generate ARP request, reset pnArpRequestFlag, increament nArpRequestSentCount.
4. else drop the buffered packets and reset the RetryCount and RequestFlag.
3. if nDestinationPresentFlag set,drop temp packet and reset RetryCount and RequestFlag

*if(szNextHopIp)

Definition at line 32 of file RequestTimeOut.c.

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◆ fn_NetSim_ARP_Run()

int fn_NetSim_ARP_Run ( )

Function to run ARP protocol.

This function is called by NetworkStack.dll, whenever the event gets triggered
inside the NetworkStack.dll for the ARP protocol

Definition at line 22 of file Arp.c.

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◆ fn_NetSim_ARP_Trace()

char * fn_NetSim_ARP_Trace ( int nSubEvent )

Return the subevent name with respect to the subevent number for writting event trace.

This function is called by NetworkStack.dll, while writing the evnt trace to get the sub event as a string.

Definition at line 120 of file Arp.c.

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◆ fn_NetSim_ARP_Trace_F()

char * fn_NetSim_ARP_Trace_F ( int nSubEvent )

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◆ fn_NetSim_ARP_WritePacketTrace()

char * fn_NetSim_ARP_WritePacketTrace	(	NetSim_PACKET *	pstruPacket,
		char **	ppszTrace
	)

This function will return the string to write packet trace.

Definition at line 164 of file Arp.c.

◆ fn_Netsim_CopyArpTable()

ARP_TABLE * fn_Netsim_CopyArpTable ( ARP_TABLE * )

Function to Copy the ARP_TABLE from source to destination. Returm destination ARP Table head pointer reference.

◆ fn_NetSim_DeleteArpTable()

void fn_NetSim_DeleteArpTable ( ARP_TABLE ** )

Function to Delete/ deallocate the memory assigned to the ARP_TABLE.

◆ fn_NetSim_Generate_ARP_Reply()

int fn_NetSim_Generate_ARP_Reply	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

This function is called whenever the NETWORK_IN_EVENT triggred with the control 
packet as REQUEST_PACKET. That is ARP request is received. Then call this
function to generate REPLY_PACKET. Do the following to generate Reply
1.Check for the hardware type, protocol type,MAC address lenth, IP adress length
  are correct matching.
2. Check the Source IP and MAC entry present in the table, if not update the table.
3. Check the packet received device is the destination, if not, dicard the packet,
  else Generate the REPLY_PACKET by updating its MAC address.       
4.Add the control packet to access buffer to farward the packet to next layer.  

Definition at line 31 of file GenerateArpReply.c.

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◆ fn_NetSim_Generate_ARP_Request()

int fn_NetSim_Generate_ARP_Request	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

Function: Generate ARP Request
Whenever the ARP Table do not have the destination device MAC address, this function            
is called to generate BROARDCAST ARP request. Once the Request packet generated, if 
reply won't get, before generating the next request, it has to wait till the 
ARP_RETRY_INTERVAL (default 10secs) The number of retries is equal to ARP_RETRY_LIMIT 
(default 3). So ARP Request packet generated, buffer the packet till you get reply or 
RequestSentCount reaches  ARP_RETRY_LIMIT. If you got the reply, farward the buffered 
packet, else drop the buffered packets.
Do the following to generate Request
1. Check the RequestFlag. First time it is 0, buffer the packet, Generate the request
    and set the flag to 1.
2.Add the relent filelds hardware type, protocol type,MAC address lenth, IP adress length
  SrcAddIP, DestAddIP,SrcMacAdd etc relevent fields for ARP request
3.Add the request packet to access buffer to farward the packet to next layer.  
4. Generate the Request TimeOut event by adding the ARP_RETRY_INTERVAL to the current event time.
5.When the RequestFlag is 1, buffer the packets

Definition at line 36 of file GenerateArpRequest.c.

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◆ fn_NetSim_ipv4_network_check()

int fn_NetSim_ipv4_network_check	(	char *	,
		char *	,
		char *
	)

Function used to check the destination is in the same subnet or not from IPV4.lib.

◆ fn_NetSim_Read_ARP_Table()

int fn_NetSim_Read_ARP_Table	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

◆ fn_NetSim_StaticArpTable_Read()

int fn_NetSim_StaticArpTable_Read ( char * pszARPstasticTablePath )

Function to Read the static table and assign to the ARP_TABLE.

◆ fn_NetSim_Update_ARP_Table_ForwardPacket()

int fn_NetSim_Update_ARP_Table_ForwardPacket	(	NetSim_EVENTDETAILS *	pstruEventDetails,
		struct stru_NetSim_Network *	NETWORK
	)

Function: Update Arp Table and Farward Packet
This function is called whenever the NETWORK_IN_EVENT triggred with the control 
packet as REPLY_PACKET. That is ARP reply is received. Then call this function to
update the MAC address and forward the buffred packet. Do the following, 
1.Update the ARP table by updating the destination IP and MAC address
2.Take the buffered packet, update the destination MAC address and add the 20 byte IP header.
3.Add the packet to access buffer to forward the packet to next layer.                          

Definition at line 38 of file UpdateArpTable.c.

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Variable Documentation

◆ g_pstruStaticTableConfig

STATIC_TABLE_CONFIG* g_pstruStaticTableConfig

Definition at line 171 of file ARP.h.

◆ szBroadcastIPaddress

NETSIM_IPAddress szBroadcastIPaddress

Definition at line 168 of file ARP.h.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ ARP_ETHERNET_HEADER_LENGTH

◆ DEFAULT_ARP_RETRY_INTERVAL

◆ DEFAULT_ARP_RETRY_LIMIT

◆ HARDWARE_ADDRESS_LENGTH

◆ IPV4_ARP_PACKET_SIZE

◆ IPV4_ARP_PACKET_SIZE_WITH_ETH_HEADER

◆ IPV4_NETWORK_OVERHEADS

◆ IPV4_PROTOCOL_ADDREES_LENGTH

◆ IPV6_ARP_PACKET_SIZE

◆ IPV6_ARP_PACKET_SIZE_WITH_ETH_HEADER

◆ IPV6_NETWORK_OVERHEADS

◆ IPV6_PROTOCOL_ADDREES_LENGTH

Typedef Documentation

◆ ARP_BUFFER

◆ ARP_CONTROL_PACKET

◆ ARP_FRAME_TX_FLAG

◆ ARP_METRICS

◆ ARP_PACKET

◆ ARP_TABLE

◆ ARP_VARIABLES

◆ ENTRY_TYPE

◆ ETHERNET_TYPE

◆ HARDWARETYPE

◆ OPCODE

◆ PROTOCOLTYPE

◆ STATIC_ARP_STATUS

◆ STATIC_TABLE_CONFIG

◆ SUB_EVENT

Enumeration Type Documentation

◆ enum_ARP_EthernetFrameType

◆ enum_ARP_HardwareType

◆ enum_ARP_opcode

◆ enum_ARP_PrptocolType

◆ enum_ARP_Subevent_Type

◆ enum_ARP_Table_Entries_Type

◆ enum_ArpControlPacket_Type

◆ enum_Static_Arp_Status

Function Documentation

◆ fn_NetSim_Add_IP_MAC_AddressTo_ARP_Table()

◆ fn_NetSim_Add_PacketTo_Buffer()

◆ fn_Netsim_ARP_CheckDestinationDevice()

◆ fn_NetSim_ARP_ConfigPacketTrace()

◆ fn_NetSim_ARP_Configure()

◆ fn_NetSim_ARP_Configure_F()

◆ fn_NetSim_ARP_CopyPacket()

◆ fn_NetSim_ARP_CopyPacket_F()

◆ fn_NetSim_Arp_Drop_Buffered_Packet()

◆ fn_NetSim_ARP_Finish()

◆ fn_NetSim_ARP_Finish_F()

◆ fn_NetSim_ARP_FreePacket()

◆ fn_NetSim_ARP_FreePacket_F()

◆ fn_NetSim_ARP_Init()

◆ fn_NetSim_ARP_Init_F()

◆ fn_NetSim_ARP_Metrics()

◆ fn_NetSim_ARP_Metrics_F()

◆ fn_NetSim_ARP_Request_Timeout()

◆ fn_NetSim_ARP_Run()

◆ fn_NetSim_ARP_Trace()

◆ fn_NetSim_ARP_Trace_F()

◆ fn_NetSim_ARP_WritePacketTrace()

◆ fn_Netsim_CopyArpTable()

◆ fn_NetSim_DeleteArpTable()

◆ fn_NetSim_Generate_ARP_Reply()

◆ fn_NetSim_Generate_ARP_Request()

◆ fn_NetSim_ipv4_network_check()

◆ fn_NetSim_Read_ARP_Table()

◆ fn_NetSim_StaticArpTable_Read()

◆ fn_NetSim_Update_ARP_Table_ForwardPacket()

Variable Documentation

◆ g_pstruStaticTableConfig

◆ szBroadcastIPaddress