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# TestPacketCapture.c

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    00001 /*
    00002  * Copyright (c) 1999 - 2003
    00003  * NetGroup, Politecnico di Torino (Italy)
    00004  * All rights reserved.
    00005  *
    00006  * Redistribution and use in source and binary forms, with or without
    00007  * modification, are permitted provided that the following conditions
    00008  * are met:
    00009  *
    00010  * 1. Redistributions of source code must retain the above copyright
    00011  * notice, this list of conditions and the following disclaimer.
    00012  * 2. Redistributions in binary form must reproduce the above copyright
    00013  * notice, this list of conditions and the following disclaimer in the
    00014  * documentation and/or other materials provided with the distribution.
    00015  * 3. Neither the name of the Politecnico di Torino nor the names of its
    00016  * contributors may be used to endorse or promote products derived from
    00017  * this software without specific prior written permission.
    00018  *
    00019  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    00020  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    00021  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    00022  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    00023  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00024  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    00025  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    00026  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    00027  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00028  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    00029  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00030  *
    00031  */
    00032
    00033
    00034 #include <stdio.h>
    00035 #include <conio.h>
    00036
    00037
    00038 #include "..\..\..\Include\packet32.h"
    00039 #include "..\..\..\Include\ntddndis.h"
    00040
    00041 #define Max_Num_Adapter 10
    00042
    00043 // Prototypes
    00044
    00045 void PrintPackets(LPPACKET lpPacket);
    00046
    00047 char        AdapterList[Max_Num_Adapter][1024];
    00048
    00049 int main()
    00050 {
    00051 //define a pointer to an ADAPTER structure
    00052
    00053 LPADAPTER  lpAdapter = 0;
    00054
    00055 //define a pointer to a PACKET structure
    00056
    00057 LPPACKET   lpPacket;
    00058
    00059 int        i;
    00060 DWORD      dwErrorCode;
    00061
    00062 //ascii strings
    00063 char        AdapterName[8192]; // string that contains a list of the network adapters
    00064 char        *temp,*temp1;
    00065
    00066
    00067 int         AdapterNum=0,Open;
    00068 ULONG       AdapterLength;
    00069
    00070 char buffer[256000];  // buffer to hold the data coming from the driver
    00071
    00072 struct bpf_stat stat;
    00073
    00074     //
    00075     // Obtain the name of the adapters installed on this machine
    00076     //
    00077     printf("Packet.dll test application. Library version:%s\n", PacketGetVersion());
    00078
    00079     printf("Adapters installed:\n");
    00080     i=0;
    00081
    00082     AdapterLength = sizeof(AdapterName);
    00083
    00084     if(PacketGetAdapterNames(AdapterName,&AdapterLength)==FALSE){
    00085         printf("Unable to retrieve the list of the adapters!\n");
    00086         return -1;
    00087     }
    00088     temp=AdapterName;
    00089     temp1=AdapterName;
    00090
    00091     while ((*temp!='\0')||(*(temp-1)!='\0'))
    00092     {
    00093         if (*temp=='\0')
    00094         {
    00095             memcpy(AdapterList[i],temp1,temp-temp1);
    00096             temp1=temp+1;
    00097             i++;
    00098         }
    00099         temp++;
    00100     }
    00101
    00102     AdapterNum=i;
    00103     for (i=0;i<AdapterNum;i++)
    00104         printf("\n%d- %s\n",i+1,AdapterList[i]);
    00105     printf("\n");
    00106
    00107
    00108     do
    00109     {
    00110         printf("Select the number of the adapter to open : ");
    00111         scanf("%d",&Open);
    00112         if (Open>AdapterNum) printf("\nThe number must be smaller than %d",AdapterNum);
    00113     } while (Open>AdapterNum);
    00114
    00115
    00116
    00117
    00118     lpAdapter =   PacketOpenAdapter(AdapterList[Open-1]);
    00119
    00120     if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE))
    00121     {
    00122         dwErrorCode=GetLastError();
    00123         printf("Unable to open the adapter, Error Code : %lx\n",dwErrorCode);
    00124
    00125         return -1;
    00126     }
    00127
    00128     // set the network adapter in promiscuous mode
    00129
    00130     if(PacketSetHwFilter(lpAdapter,NDIS_PACKET_TYPE_PROMISCUOUS)==FALSE){
    00131             printf("Warning: unable to set promiscuous mode!\n");
    00132     }
    00133
    00134     // set a 512K buffer in the driver
    00135     if(PacketSetBuff(lpAdapter,512000)==FALSE){
    00136             printf("Unable to set the kernel buffer!\n");
    00137             return -1;
    00138     }
    00139
    00140     // set a 1 second read timeout
    00141     if(PacketSetReadTimeout(lpAdapter,1000)==FALSE){
    00142             printf("Warning: unable to set the read tiemout!\n");
    00143     }
    00144
    00145     //allocate and initialize a packet structure that will be used to
    00146     //receive the packets.
    00147     if((lpPacket = PacketAllocatePacket())==NULL){
    00148         printf("\nError: failed to allocate the LPPACKET structure.");
    00149         return (-1);
    00150     }
    00151     PacketInitPacket(lpPacket,(char*)buffer,256000);
    00152
    00153     //main capture loop
    00154     while(!kbhit())
    00155     {
    00156         // capture the packets
    00157         if(PacketReceivePacket(lpAdapter,lpPacket,TRUE)==FALSE){
    00158             printf("Error: PacketReceivePacket failed");
    00159             return (-1);
    00160         }
    00161
    00162         PrintPackets(lpPacket);
    00163     }
    00164
    00165
    00166     //print the capture statistics
    00167     if(PacketGetStats(lpAdapter,&stat)==FALSE){
    00168             printf("Warning: unable to get stats from the kernel!\n");
    00169     }
    00170     else
    00171         printf("\n\n%d packets received.\n%d Packets lost",stat.bs_recv,stat.bs_drop);
    00172
    00173     PacketFreePacket(lpPacket);
    00174
    00175     // close the adapter and exit
    00176
    00177     PacketCloseAdapter(lpAdapter);
    00178     return (0);
    00179 }
    00180
    00181 // this function prints the content of a block of packets received from the driver
    00182
    00183 void PrintPackets(LPPACKET lpPacket)
    00184 {
    00185
    00186     ULONG   i, j, ulLines, ulen, ulBytesReceived;
    00187     char    *pChar, *pLine, *base;
    00188     char    *buf;
    00189     u_int off=0;
    00190     u_int tlen,tlen1;
    00191     struct bpf_hdr *hdr;
    00192
    00193         ulBytesReceived = lpPacket->ulBytesReceived;
    00194
    00195
    00196         buf = lpPacket->Buffer;
    00197
    00198         off=0;
    00199
    00200         while(off<ulBytesReceived){
    00201             if(kbhit())return;
    00202         hdr=(struct bpf_hdr *)(buf+off);
    00203         tlen1=hdr->bh_datalen;
    00204         tlen=hdr->bh_caplen;
    00205         printf("Packet length, captured portion: %ld, %ld\n", tlen1, tlen);
    00206         off+=hdr->bh_hdrlen;
    00207
    00208         ulLines = (tlen + 15) / 16;
    00209
    00210         pChar =(char*)(buf+off);
    00211         base=pChar;
    00212         off=Packet_WORDALIGN(off+tlen);
    00213
    00214         for ( i=0; i<ulLines; i++ )
    00215         {
    00216
    00217             pLine =pChar;
    00218
    00219             printf( "%08lx : ", pChar-base );
    00220
    00221             ulen=tlen;
    00222             ulen = ( ulen > 16 ) ? 16 : ulen;
    00223             tlen -= ulen;
    00224
    00225             for ( j=0; j<ulen; j++ )
    00226                 printf( "%02x ", *(BYTE *)pChar++ );
    00227
    00228             if ( ulen < 16 )
    00229                 printf( "%*s", (16-ulen)*3, " " );
    00230
    00231             pChar = pLine;
    00232
    00233             for ( j=0; j<ulen; j++, pChar++ )
    00234                 printf( "%c", isprint( *pChar ) ? *pChar : '.' );
    00235
    00236             printf( "\n" );
    00237         }
    00238
    00239         printf( "\n" );
    00240         }
    00241 }
    00242
    00243

documentation. Copyright (c) 2002-2003 Politecnico di Torino. All rights reserved.