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Classes
struct	ICMP_HEADER

Macros
#define	ICMP_TYPE_ECHO_REPLY 0 /* Echo reply */

#define	ICMP_TYPE_DEST_UNREACH 3 /* Destination unreachable */

#define	ICMP_TYPE_SOURCE_QUENCH 4 /* Source quench */

#define	ICMP_TYPE_REDIRECT 5 /* Redirect */

#define	ICMP_TYPE_ECHO_REQUEST 8 /* Echo request */

#define	ICMP_TYPE_TIME_EXCEEDED 11 /* Time exceeded */

#define	ICMP_TYPE_PARAMETER 12 /* Parameter problem */

#define	ICMP_TYPE_TIMESTAMP_REQUEST 13 /* Timestamp request */

#define	ICMP_TYPE_TIMESTAMP_REPLY 14 /* Timestamp reply */

#define	ICMP_TYPE_INFO_REQUEST 15 /* Information request */

#define	ICMP_TYPE_INFO_REPLY 16 /* Information reply */

#define	ICMP_CODE_DU_NET_UNREACH 0 /* Network unreachable */

#define	ICMP_CODE_DU_HOST_UNREACH 1 /* Host unreachable */

#define	ICMP_CODE_DU_PROTOCOL_UNREACH 2 /* Protocol unreachable */

#define	ICMP_CODE_DU_PORT_UNREACH 3 /* Port unreachable */

#define	ICMP_CODE_DU_FRAG_DF_SET 4 /* Fragmentation needed and DF set */

#define	ICMP_CODE_DU_SOURCE_ROUTE_FAILED 5 /* Source route failed */

#define	ICMP_CODE_RD_NET 0 /* Redirect datagrams for the network */

#define	ICMP_CODE_RD_HOST 1 /* Redirect datagrams for the host */

#define	ICMP_CODE_RD_TOS_NET 2 /* Redirect datagrams for the Type of Service and network */

#define	ICMP_CODE_RD_TOS_HOST 3 /* Redirect datagrams for the Type of Service and host */

#define	ICMP_CODE_TE_TTL 0 /* Time to live exceeded in transit */

#define	ICMP_CODE_TE_REASSEMBLY 1 /* Fragment reassembly time exceeded */

#define	ICMP_CODE_TP_POINTER 1 /* Pointer indicates the error */

Typedefs
typedef struct ICMP_HEADER	ICMP_HEADER

typedef struct ICMP_HEADER *	PICMP_HEADER

Functions
NTSTATUS	ICMPSendDatagram (PADDRESS_FILE AddrFile, PTDI_CONNECTION_INFORMATION ConnInfo, PCHAR BufferData, ULONG DataSize, PULONG DataUsed)

NTSTATUS	ICMPStartup (VOID)

NTSTATUS	ICMPShutdown (VOID)

VOID	ICMPReceive (PIP_INTERFACE Interface, PIP_PACKET IPPacket)

VOID	ICMPTransmit (PIP_PACKET IPPacket, PIP_TRANSMIT_COMPLETE Complete, PVOID Context)

VOID	ICMPReply (PIP_INTERFACE Interface, PIP_PACKET IPPacket, UCHAR Type, UCHAR Code)

Macro Definition Documentation

◆ ICMP_CODE_DU_FRAG_DF_SET

#define ICMP_CODE_DU_FRAG_DF_SET 4 /* Fragmentation needed and DF set */

Definition at line 35 of file icmp.h.

◆ ICMP_CODE_DU_HOST_UNREACH

#define ICMP_CODE_DU_HOST_UNREACH 1 /* Host unreachable */

Definition at line 32 of file icmp.h.

◆ ICMP_CODE_DU_NET_UNREACH

#define ICMP_CODE_DU_NET_UNREACH 0 /* Network unreachable */

Definition at line 31 of file icmp.h.

◆ ICMP_CODE_DU_PORT_UNREACH

#define ICMP_CODE_DU_PORT_UNREACH 3 /* Port unreachable */

Definition at line 34 of file icmp.h.

◆ ICMP_CODE_DU_PROTOCOL_UNREACH

#define ICMP_CODE_DU_PROTOCOL_UNREACH 2 /* Protocol unreachable */

Definition at line 33 of file icmp.h.

◆ ICMP_CODE_DU_SOURCE_ROUTE_FAILED

#define ICMP_CODE_DU_SOURCE_ROUTE_FAILED 5 /* Source route failed */

Definition at line 36 of file icmp.h.

◆ ICMP_CODE_RD_HOST

#define ICMP_CODE_RD_HOST 1 /* Redirect datagrams for the host */

Definition at line 40 of file icmp.h.

◆ ICMP_CODE_RD_NET

#define ICMP_CODE_RD_NET 0 /* Redirect datagrams for the network */

Definition at line 39 of file icmp.h.

◆ ICMP_CODE_RD_TOS_HOST

#define ICMP_CODE_RD_TOS_HOST 3 /* Redirect datagrams for the Type of Service and host */

Definition at line 42 of file icmp.h.

◆ ICMP_CODE_RD_TOS_NET

#define ICMP_CODE_RD_TOS_NET 2 /* Redirect datagrams for the Type of Service and network */

Definition at line 41 of file icmp.h.

◆ ICMP_CODE_TE_REASSEMBLY

#define ICMP_CODE_TE_REASSEMBLY 1 /* Fragment reassembly time exceeded */

Definition at line 46 of file icmp.h.

◆ ICMP_CODE_TE_TTL

#define ICMP_CODE_TE_TTL 0 /* Time to live exceeded in transit */

Definition at line 45 of file icmp.h.

◆ ICMP_CODE_TP_POINTER

#define ICMP_CODE_TP_POINTER 1 /* Pointer indicates the error */

Definition at line 49 of file icmp.h.

◆ ICMP_TYPE_DEST_UNREACH

#define ICMP_TYPE_DEST_UNREACH 3 /* Destination unreachable */

Definition at line 19 of file icmp.h.

◆ ICMP_TYPE_ECHO_REPLY

#define ICMP_TYPE_ECHO_REPLY 0 /* Echo reply */

Definition at line 18 of file icmp.h.

◆ ICMP_TYPE_ECHO_REQUEST

#define ICMP_TYPE_ECHO_REQUEST 8 /* Echo request */

Definition at line 22 of file icmp.h.

◆ ICMP_TYPE_INFO_REPLY

#define ICMP_TYPE_INFO_REPLY 16 /* Information reply */

Definition at line 28 of file icmp.h.

◆ ICMP_TYPE_INFO_REQUEST

#define ICMP_TYPE_INFO_REQUEST 15 /* Information request */

Definition at line 27 of file icmp.h.

◆ ICMP_TYPE_PARAMETER

#define ICMP_TYPE_PARAMETER 12 /* Parameter problem */

Definition at line 24 of file icmp.h.

◆ ICMP_TYPE_REDIRECT

#define ICMP_TYPE_REDIRECT 5 /* Redirect */

Definition at line 21 of file icmp.h.

◆ ICMP_TYPE_SOURCE_QUENCH

#define ICMP_TYPE_SOURCE_QUENCH 4 /* Source quench */

Definition at line 20 of file icmp.h.

◆ ICMP_TYPE_TIME_EXCEEDED

#define ICMP_TYPE_TIME_EXCEEDED 11 /* Time exceeded */

Definition at line 23 of file icmp.h.

◆ ICMP_TYPE_TIMESTAMP_REPLY

#define ICMP_TYPE_TIMESTAMP_REPLY 14 /* Timestamp reply */

Definition at line 26 of file icmp.h.

◆ ICMP_TYPE_TIMESTAMP_REQUEST

#define ICMP_TYPE_TIMESTAMP_REQUEST 13 /* Timestamp request */

Definition at line 25 of file icmp.h.

Typedef Documentation

◆ ICMP_HEADER

typedef struct ICMP_HEADER ICMP_HEADER

◆ PICMP_HEADER

typedef struct ICMP_HEADER * PICMP_HEADER

Function Documentation

◆ ICMPReceive()

VOID ICMPReceive	(	PIP_INTERFACE	Interface,
		PIP_PACKET	IPPacket
	)

Definition at line 211 of file icmp.c.

 {
     PICMP_HEADER ICMPHeader;
 
     TI_DbgPrint(DEBUG_ICMP, ("Called.\n"));
 
     ICMPHeader = (PICMP_HEADER)IPPacket->Data;
 
     TI_DbgPrint(DEBUG_ICMP, ("Size (%d).\n", IPPacket->TotalSize));
 
     TI_DbgPrint(DEBUG_ICMP, ("HeaderSize (%d).\n", IPPacket->HeaderSize));
 
     TI_DbgPrint(DEBUG_ICMP, ("Type (%d).\n", ICMPHeader->Type));
 
     TI_DbgPrint(DEBUG_ICMP, ("Code (%d).\n", ICMPHeader->Code));
 
     TI_DbgPrint(DEBUG_ICMP, ("Checksum (0x%X).\n", ICMPHeader->Checksum));
 
     /* Checksum ICMP header and data */
     if (!IPv4CorrectChecksum(IPPacket->Data, IPPacket->TotalSize - IPPacket->HeaderSize)) {
         TI_DbgPrint(DEBUG_ICMP, ("Bad ICMP checksum.\n"));
         /* Discard packet */
         return;
     }
 
     RawIpReceive(Interface, IPPacket);
 
     switch (ICMPHeader->Type) {
         case ICMP_TYPE_ECHO_REQUEST:
             ICMPReply( Interface, IPPacket, ICMP_TYPE_ECHO_REPLY, 0 );
             break;
 
         case ICMP_TYPE_ECHO_REPLY:
             break;
 
         default:
             TI_DbgPrint(DEBUG_ICMP,
                         ("Discarded ICMP datagram of unknown type %d.\n",
                          ICMPHeader->Type));
             /* Discard packet */
             break;
     }
 }

Referenced by ICMPStartup().

◆ ICMPReply()

VOID ICMPReply	(	PIP_INTERFACE	Interface,
		PIP_PACKET	IPPacket,
		UCHAR	Type,
		UCHAR	Code
	)

Definition at line 296 of file icmp.c.

 {
     UINT DataSize;
     IP_PACKET NewPacket;
 
     TI_DbgPrint(DEBUG_ICMP, ("Called. Type (%d)  Code (%d).\n", Type, Code));
 
     DataSize = IPPacket->TotalSize - IPPacket->HeaderSize;
 
     if( !PrepareICMPPacket(NULL, Interface, &NewPacket, &IPPacket->SrcAddr,
                IPPacket->Data, DataSize) ) return;
 
     ((PICMP_HEADER)NewPacket.Data)->Type     = Type;
     ((PICMP_HEADER)NewPacket.Data)->Code     = Code;
     ((PICMP_HEADER)NewPacket.Data)->Checksum = 0;
 
     ICMPTransmit(&NewPacket, NULL, NULL);
 }

Referenced by ICMPReceive().

◆ ICMPSendDatagram()

NTSTATUS ICMPSendDatagram	(	PADDRESS_FILE	AddrFile,
		PTDI_CONNECTION_INFORMATION	ConnInfo,
		PCHAR	BufferData,
		ULONG	DataSize,
		PULONG	DataUsed
	)

Definition at line 118 of file icmp.c.

 {
     IP_PACKET Packet;
     PTA_IP_ADDRESS RemoteAddressTa = (PTA_IP_ADDRESS)ConnInfo->RemoteAddress;
     IP_ADDRESS RemoteAddress,  LocalAddress;
     NTSTATUS Status;
     PNEIGHBOR_CACHE_ENTRY NCE;
     KIRQL OldIrql;
 
     TI_DbgPrint(MID_TRACE,("Sending Datagram(%x %x %x %d)\n",
                AddrFile, ConnInfo, BufferData, DataSize));
     TI_DbgPrint(MID_TRACE,("RemoteAddressTa: %x\n", RemoteAddressTa));
 
     switch( RemoteAddressTa->Address[0].AddressType ) {
         case TDI_ADDRESS_TYPE_IP:
             RemoteAddress.Type = IP_ADDRESS_V4;
             RemoteAddress.Address.IPv4Address =
                 RemoteAddressTa->Address[0].Address[0].in_addr;
             break;
 
         default:
             return STATUS_UNSUCCESSFUL;
     }
 
     TI_DbgPrint(MID_TRACE,("About to get route to destination\n"));
 
     LockObject(AddrFile, &OldIrql);
 
     LocalAddress = AddrFile->Address;
     if (AddrIsUnspecified(&LocalAddress))
     {
         /* If the local address is unspecified (0),
          * then use the unicast address of the
          * interface we're sending over
          */
         if(!(NCE = RouteGetRouteToDestination( &RemoteAddress )))
         {
             UnlockObject(AddrFile, OldIrql);
             return STATUS_NETWORK_UNREACHABLE;
         }
 
         LocalAddress = NCE->Interface->Unicast;
     }
     else
     {
         if(!(NCE = NBLocateNeighbor( &LocalAddress, NULL )))
         {
             UnlockObject(AddrFile, OldIrql);
             return STATUS_INVALID_PARAMETER;
         }
     }
 
     Status = PrepareICMPPacket( AddrFile,
                                 NCE->Interface,
                                 &Packet,
                                 &RemoteAddress,
                                 BufferData,
                                 DataSize );
 
     UnlockObject(AddrFile, OldIrql);
 
     if( !NT_SUCCESS(Status) )
         return Status;
 
     TI_DbgPrint(MID_TRACE,("About to send datagram\n"));
 
     Status = IPSendDatagram(&Packet, NCE);
     if (!NT_SUCCESS(Status))
         return Status;
     
     *DataUsed = DataSize;
 
     TI_DbgPrint(MID_TRACE,("Leaving\n"));
 
     return STATUS_SUCCESS;
 }

Referenced by FileOpenAddress().

◆ ICMPShutdown()

NTSTATUS ICMPShutdown ( VOID )

Referenced by TiUnload().

◆ ICMPStartup()

NTSTATUS ICMPStartup ( VOID )

Referenced by DriverEntry().

◆ ICMPTransmit()

VOID ICMPTransmit	(	PIP_PACKET	IPPacket,
		PIP_TRANSMIT_COMPLETE	Complete,
		PVOID	Context
	)

Definition at line 264 of file icmp.c.

 {
     PNEIGHBOR_CACHE_ENTRY NCE;
 
     TI_DbgPrint(DEBUG_ICMP, ("Called.\n"));
 
     /* Calculate checksum of ICMP header and data */
     ((PICMP_HEADER)IPPacket->Data)->Checksum = (USHORT)
         IPv4Checksum(IPPacket->Data, IPPacket->TotalSize - IPPacket->HeaderSize, 0);
 
     /* Get a route to the destination address */
     if ((NCE = RouteGetRouteToDestination(&IPPacket->DstAddr))) {
         /* Send the packet */
         IPSendDatagram(IPPacket, NCE);
     } else {
         /* No route to destination (or no free resources) */
         TI_DbgPrint(DEBUG_ICMP, ("No route to destination address 0x%X.\n",
                                  IPPacket->DstAddr.Address.IPv4Address));
         IPPacket->Free(IPPacket);
     }
 }

Referenced by ICMPReply().

Classes

Macros

Typedefs

Functions