ReactOS 0.4.16-dev-122-g325d74c
Classes | Macros | Typedefs | Functions
icmp.h File Reference
#include <pshpack1.h>
#include <poppack.h>
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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 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.

62{
63 PICMP_HEADER ICMPHeader = (PICMP_HEADER)IPPacket->Data;
64 UINT32 DataSize = IPPacket->TotalSize - IPPacket->HeaderSize;
65
66 TI_DbgPrint(DEBUG_ICMP, ("ICMPReceive: Size (%d) HeaderSize (%d) Type (%d) Code (%d) Checksum (0x%x)\n",
67 IPPacket->TotalSize, IPPacket->HeaderSize, ICMPHeader->Type, ICMPHeader->Code, ICMPHeader->Checksum));
68
69 /* Discard too short packets */
70 if (DataSize < sizeof(ICMP_HEADER))
71 {
72 TI_DbgPrint(DEBUG_ICMP, ("Packet doesn't fit ICMP header. Discarded\n"));
73 return;
74 }
75
76 /* Discard packets with bad checksum */
77 if (!IPv4CorrectChecksum(IPPacket->Data, DataSize))
78 {
79 TI_DbgPrint(DEBUG_ICMP, ("Bad ICMP checksum. Packet discarded\n"));
80 return;
81 }
82
83 RawIpReceive(Interface, IPPacket);
84
85 if (ICMPHeader->Type == ICMP_TYPE_ECHO_REQUEST)
86 {
87 ICMPReply(Interface, IPPacket, ICMP_TYPE_ECHO_REPLY, 0);
88 }
89}
UINT32
unsigned int UINT32
Definition: ProcessorBind.h:163
IPv4CorrectChecksum
#define IPv4CorrectChecksum(Data, Count)
Definition: checksum.h:38
DEBUG_ICMP
#define DEBUG_ICMP
Definition: debug.h:29
TI_DbgPrint
#define TI_DbgPrint(_t_, _x_)
Definition: debug.h:45
ICMPReply
VOID ICMPReply(PIP_INTERFACE Interface, PIP_PACKET IPPacket, UCHAR Type, UCHAR Code)
Definition: icmp.c:91
ICMP_TYPE_ECHO_REPLY
#define ICMP_TYPE_ECHO_REPLY
Definition: icmp.h:21
ICMP_TYPE_ECHO_REQUEST
#define ICMP_TYPE_ECHO_REQUEST
Definition: icmp.h:25
PICMP_HEADER
struct ICMP_HEADER * PICMP_HEADER
DataSize
_In_ NDIS_STATUS _In_ ULONG _In_ USHORT _In_opt_ PVOID _In_ ULONG DataSize
Definition: ndis.h:4755
RawIpReceive
VOID RawIpReceive(PIP_INTERFACE Interface, PIP_PACKET IPPacket)
Definition: rawip.c:266
ICMP_HEADER
Definition: icmp.h:11
ICMP_HEADER::Type
UINT8 Type
Definition: icmp.h:12
ICMP_HEADER::Checksum
UINT16 Checksum
Definition: icmp.h:14
ICMP_HEADER::Code
UINT8 Code
Definition: icmp.h:13
_IP_PACKET::Data
PVOID Data
Definition: ip.h:85
_IP_PACKET::HeaderSize
UINT HeaderSize
Definition: ip.h:84
_IP_PACKET::TotalSize
UINT TotalSize
Definition: ip.h:86
Interface
_Must_inspect_result_ _In_ WDFDEVICE _In_ LPCGUID _Out_ PINTERFACE Interface
Definition: wdffdo.h:465

Referenced by ICMPStartup().

◆ ICMPReply()

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

Definition at line 91 of file icmp.c.

109{
110 UINT DataSize;
111 IP_PACKET NewPacket;
112 ADDRESS_FILE FakeAddrFile;
113 PNEIGHBOR_CACHE_ENTRY NCE;
114
115 TI_DbgPrint(DEBUG_ICMP, ("Called. Type (%d) Code (%d).\n", Type, Code));
116
117 DataSize = IPPacket->TotalSize - IPPacket->HeaderSize;
118
119 /* First check if we have a route to sender */
120 NCE = RouteGetRouteToDestination(&IPPacket->SrcAddr);
121 if (!NCE)
122 {
123 return;
124 }
125
126 /* This is the only data needed to generate a packet */
127 FakeAddrFile.Protocol = IPPROTO_ICMP;
128 FakeAddrFile.TTL = 128;
129
130 if (!NT_SUCCESS(BuildRawIpPacket(
131 &FakeAddrFile, &NewPacket, &IPPacket->SrcAddr, 0, &Interface->Unicast, 0, IPPacket->Data, DataSize)))
132 {
133 return;
134 }
135
136 ((PICMP_HEADER)NewPacket.Data)->Type = Type;
137 ((PICMP_HEADER)NewPacket.Data)->Code = Code;
138 ((PICMP_HEADER)NewPacket.Data)->Checksum = 0;
139 ((PICMP_HEADER)NewPacket.Data)->Checksum = (USHORT)IPv4Checksum(NewPacket.Data, DataSize, 0);
140
141 IPSendDatagram(&NewPacket, NCE);
142}
Type
Type
Definition: Type.h:7
IPv4Checksum
#define IPv4Checksum(Data, Count, Seed)
Definition: checksum.h:30
Code
#define Code
Definition: deflate.h:80
NT_SUCCESS
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:33
IPPROTO_ICMP
#define IPPROTO_ICMP
Definition: ip.h:194
RouteGetRouteToDestination
PNEIGHBOR_CACHE_ENTRY RouteGetRouteToDestination(PIP_ADDRESS Destination)
Definition: router.c:300
UINT
unsigned int UINT
Definition: ndis.h:50
USHORT
unsigned short USHORT
Definition: pedump.c:61
BuildRawIpPacket
NTSTATUS BuildRawIpPacket(PADDRESS_FILE AddrFile, PIP_PACKET Packet, PIP_ADDRESS RemoteAddress, USHORT RemotePort, PIP_ADDRESS LocalAddress, USHORT LocalPort, PCHAR DataBuffer, UINT DataLen)
Definition: rawip.c:86
NEIGHBOR_CACHE_ENTRY
Definition: neighbor.h:28
_ADDRESS_FILE
Definition: titypes.h:112
_ADDRESS_FILE::TTL
UCHAR TTL
Definition: titypes.h:122
_ADDRESS_FILE::Protocol
USHORT Protocol
Definition: titypes.h:119
_IP_PACKET
Definition: ip.h:77
_IP_PACKET::SrcAddr
IP_ADDRESS SrcAddr
Definition: ip.h:89
IPSendDatagram
NTSTATUS IPSendDatagram(PIP_PACKET IPPacket, PNEIGHBOR_CACHE_ENTRY NCE)
Definition: transmit.c:223
Code
_In_ UCHAR _In_ UCHAR _In_ ULONG Code
Definition: wdfdevice.h:1701

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.

45{
46 TI_DbgPrint(DEBUG_ICMP, ("Sending ICMP datagram (0x%x)\n", AddrFile));
47
48 /* just forward the call to RawIP handler */
49 return RawIPSendDatagram(AddrFile, ConnInfo, BufferData, DataSize, DataUsed);
50}
RawIPSendDatagram
NTSTATUS RawIPSendDatagram(PADDRESS_FILE AddrFile, PTDI_CONNECTION_INFORMATION ConnInfo, PCHAR Buffer, ULONG DataSize, PULONG DataUsed)
Definition: rawip.c:171

Referenced by FileOpenAddress().

◆ ICMPShutdown()

NTSTATUS ICMPShutdown ( VOID  )

◆ ICMPStartup()

NTSTATUS ICMPStartup ( VOID  )