error C2065: undeclared identifier

I get compiler errors after declaring PNDIS_GENERIC_OBJECT variable. Any suggestion what should I do?

stat.c

Code:

  #include <ntddk.h>
    #include <ndis.h>
    
    #include "stat.h"
    
   
     VOID DriverUnload(IN PDRIVER_OBJECT driverObject){
            UNREFERENCED_PARAMETER(driverObject);        
    }


    NTSTATUS DriverEntry(    IN  PDRIVER_OBJECT  driverObject,
                            IN  PUNICODE_STRING registryPath)
    {
        NTSTATUS status = STATUS_SUCCESS;
        
        PNDF__ETH_HEADER pEthHeader;
        PNDF_IPV4_HEADER pIPv4Header;
        ULONG DataOffset = 0;
    
        if (driverObject != NULL)
            driverObject->DriverUnload = DriverUnload;
            
        return status;
    }

stat.h

Code:

#ifndef STAT_H_
#define STAT_H_


#define ETHERTYPE_IP 0x0800


typedef struct _NDF_ETH_HEADER
{
    UCHAR  dmac[6];
    UCHAR  smac[6];
    USHORT type;
    
} NDF_ETH_HEADER, *PNDF_ETH_HEADER;
 
C_ASSERT( sizeof( NDF_ETH_HEADER) == 14 );
 


typedef struct _NDF_IPV4_HEADER
{
    UCHAR  ver_ihl;        // Version (4 bits) + Internet header length (4 bits)
    UCHAR  tos;            // Type of service 
    USHORT length;         // Total length 
    USHORT id;             // Identification
    USHORT flags_fo;       // Flags (3 bits) + Fragment offset (13 bits)
    UCHAR  ttl;            // Time to live
    UCHAR  protocol;       // Protocol
    USHORT checksum;       // Header checksum
    UCHAR  saddr[4];       // Source address
    UCHAR  daddr[4];       // Destination address
    
} NDF_IPV4_HEADER, *PNDF_IPV4_HEADER;
 
C_ASSERT( sizeof( NDF_IPV4_HEADER)== 20 );




#endif // _STAT_H_

SOURCES

Code:

TARGETNAME=stat
TARGETPATH=obj
TARGETTYPE=DRIVER
SOURCES= stat.c
INCLUDES=.


TARGETLIBS=\
    $(DDK_LIB_PATH)\ntoskrnl.lib \
    $(DDK_LIB_PATH)\ndis.lib \
    $(DDK_LIB_PATH)\fwpkclnt.lib \
    $(SDK_LIB_PATH)\uuid.lib


C_DEFINES=$(C_DEFINES) -DBINARY_COMPATIBLE=0 -DNT -DUNICODE -D_UNICODE -DNDIS60 -DNDIS_SUPPORT_NDIS6

Code:

.c(16) : error C2065: 'PNDF__ETH_HEADER' : undeclared identifier
.c(16) : error C2146: syntax error : missing ';' before identifier 'pEthHeader'
.c(16) : error C2065: 'pEthHeader' : undeclared identifier
.c(17) : error C2275: 'PNDF_IPV4_HEADER' : illegal use of this type as an expression
.c(17) : error C2146: syntax error : missing ';' before identifier 'pIPv4Header'
.c(17) : error C2065: 'pIPv4Header' : undeclared identifier
.c(18) : error C2275: 'ULONG' : illegal use of this type as an expression
.c(18) : error C2146: syntax error : missing ';' before identifier 'DataOffset'
.c(18) : error C2065: 'DataOffset' : undeclared identifier

Thanks in advice

Try counting the underscores used on line 17.

Originally Posted by SMurf

Try counting the underscores used on line 17.

Thanks