#include <pshpack1.h>
#include <poppack.h>

Include dependency graph for icmp.h:

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

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	DispEchoRequest (PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)

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	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 38 of file icmp.h.

◆ ICMP_CODE_DU_HOST_UNREACH

#define ICMP_CODE_DU_HOST_UNREACH 1 /* Host unreachable */

Definition at line 35 of file icmp.h.

◆ ICMP_CODE_DU_NET_UNREACH

#define ICMP_CODE_DU_NET_UNREACH 0 /* Network unreachable */

Definition at line 34 of file icmp.h.

◆ ICMP_CODE_DU_PORT_UNREACH

#define ICMP_CODE_DU_PORT_UNREACH 3 /* Port unreachable */

Definition at line 37 of file icmp.h.

◆ ICMP_CODE_DU_PROTOCOL_UNREACH

#define ICMP_CODE_DU_PROTOCOL_UNREACH 2 /* Protocol unreachable */

Definition at line 36 of file icmp.h.

◆ ICMP_CODE_DU_SOURCE_ROUTE_FAILED

#define ICMP_CODE_DU_SOURCE_ROUTE_FAILED 5 /* Source route failed */

Definition at line 39 of file icmp.h.

◆ ICMP_CODE_RD_HOST

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

Definition at line 43 of file icmp.h.

◆ ICMP_CODE_RD_NET

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

Definition at line 42 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 45 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 44 of file icmp.h.

◆ ICMP_CODE_TE_REASSEMBLY

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

Definition at line 49 of file icmp.h.

◆ ICMP_CODE_TE_TTL

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

Definition at line 48 of file icmp.h.

◆ ICMP_CODE_TP_POINTER

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

Definition at line 52 of file icmp.h.

◆ ICMP_TYPE_DEST_UNREACH

#define ICMP_TYPE_DEST_UNREACH 3 /* Destination unreachable */

Definition at line 22 of file icmp.h.

◆ ICMP_TYPE_ECHO_REPLY

#define ICMP_TYPE_ECHO_REPLY 0 /* Echo reply */

Definition at line 21 of file icmp.h.

◆ ICMP_TYPE_ECHO_REQUEST

#define ICMP_TYPE_ECHO_REQUEST 8 /* Echo request */

Definition at line 25 of file icmp.h.

◆ ICMP_TYPE_INFO_REPLY

#define ICMP_TYPE_INFO_REPLY 16 /* Information reply */

Definition at line 31 of file icmp.h.

◆ ICMP_TYPE_INFO_REQUEST

#define ICMP_TYPE_INFO_REQUEST 15 /* Information request */

Definition at line 30 of file icmp.h.

◆ ICMP_TYPE_PARAMETER

#define ICMP_TYPE_PARAMETER 12 /* Parameter problem */

Definition at line 27 of file icmp.h.

◆ ICMP_TYPE_REDIRECT

#define ICMP_TYPE_REDIRECT 5 /* Redirect */

Definition at line 24 of file icmp.h.

◆ ICMP_TYPE_SOURCE_QUENCH

#define ICMP_TYPE_SOURCE_QUENCH 4 /* Source quench */

Definition at line 23 of file icmp.h.

◆ ICMP_TYPE_TIME_EXCEEDED

#define ICMP_TYPE_TIME_EXCEEDED 11 /* Time exceeded */

Definition at line 26 of file icmp.h.

◆ ICMP_TYPE_TIMESTAMP_REPLY

#define ICMP_TYPE_TIMESTAMP_REPLY 14 /* Timestamp reply */

Definition at line 29 of file icmp.h.

◆ ICMP_TYPE_TIMESTAMP_REQUEST

#define ICMP_TYPE_TIMESTAMP_REQUEST 13 /* Timestamp request */

Definition at line 28 of file icmp.h.

Typedef Documentation

◆ ICMP_HEADER

typedef struct ICMP_HEADER ICMP_HEADER

◆ PICMP_HEADER

typedef struct ICMP_HEADER * PICMP_HEADER

Function Documentation

◆ DispEchoRequest()

NTSTATUS DispEchoRequest	(	PDEVICE_OBJECT	DeviceObject,
		PIRP	Irp,
		PIO_STACK_LOCATION	IrpSp
	)

Referenced by TiDispatch().

◆ ICMPReceive()

VOID ICMPReceive	(	PIP_INTERFACE	Interface,
		PIP_PACKET	IPPacket
	)

Definition at line 53 of file icmp.c.

 {
     PICMP_HEADER ICMPHeader = (PICMP_HEADER)IPPacket->Data;
     UINT32 DataSize = IPPacket->TotalSize - IPPacket->HeaderSize;
 
     TI_DbgPrint(DEBUG_ICMP, ("ICMPReceive: Size (%d) HeaderSize (%d) Type (%d) Code (%d) Checksum (0x%x)\n",
         IPPacket->TotalSize, IPPacket->HeaderSize, ICMPHeader->Type, ICMPHeader->Code, ICMPHeader->Checksum));
 
     /* Discard too short packets */
     if (DataSize < sizeof(ICMP_HEADER))
     {
         TI_DbgPrint(DEBUG_ICMP, ("Packet doesn't fit ICMP header. Discarded\n"));
         return;
     }
 
     /* Discard packets with bad checksum */
     if (!IPv4CorrectChecksum(IPPacket->Data, DataSize))
     {
         TI_DbgPrint(DEBUG_ICMP, ("Bad ICMP checksum. Packet discarded\n"));
         return;
     }
 
     RawIpReceive(Interface, IPPacket);
 
     if (ICMPHeader->Type == ICMP_TYPE_ECHO_REQUEST)
     {
         ICMPReply(Interface, IPPacket, ICMP_TYPE_ECHO_REPLY, 0);
     }
 }

Referenced by ICMPStartup().

◆ ICMPReply()

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

Definition at line 91 of file icmp.c.

 {
     UINT DataSize;
     IP_PACKET NewPacket;
     ADDRESS_FILE FakeAddrFile;
     PNEIGHBOR_CACHE_ENTRY NCE;
 
     TI_DbgPrint(DEBUG_ICMP, ("Called. Type (%d)  Code (%d).\n", Type, Code));
 
     DataSize = IPPacket->TotalSize - IPPacket->HeaderSize;
 
     /* First check if we have a route to sender */
     NCE = RouteGetRouteToDestination(&IPPacket->SrcAddr);
     if (!NCE)
     {
         return;
     }
 
     /* This is the only data needed to generate a packet */
     FakeAddrFile.Protocol = IPPROTO_ICMP;
     FakeAddrFile.TTL = 128;
 
     if (!NT_SUCCESS(BuildRawIpPacket(
         &FakeAddrFile, &NewPacket, &IPPacket->SrcAddr, 0, &Interface->Unicast, 0, IPPacket->Data, DataSize)))
     {
         return;
     }
 
     ((PICMP_HEADER)NewPacket.Data)->Type     = Type;
     ((PICMP_HEADER)NewPacket.Data)->Code     = Code;
     ((PICMP_HEADER)NewPacket.Data)->Checksum = 0;
     ((PICMP_HEADER)NewPacket.Data)->Checksum = (USHORT)IPv4Checksum(NewPacket.Data, DataSize, 0);
 
     IPSendDatagram(&NewPacket, NCE);
 }

Referenced by ICMPReceive().

◆ ICMPSendDatagram()

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

Definition at line 29 of file icmp.c.

 {
     TI_DbgPrint(DEBUG_ICMP, ("Sending ICMP datagram (0x%x)\n", AddrFile));
 
     /* just forward the call to RawIP handler */
     return RawIPSendDatagram(AddrFile, ConnInfo, BufferData, DataSize, DataUsed);
 }

Referenced by FileOpenAddress().

◆ ICMPShutdown()

NTSTATUS ICMPShutdown ( VOID )

Referenced by TiUnload().

◆ ICMPStartup()

NTSTATUS ICMPStartup ( VOID )

Referenced by DriverEntry().

Classes

Macros

Typedefs

Functions