int main(int argc, char* argv[])
{
// Packet.lib variables:
LPADAPTER lpAdapter = 0;
PPACKET_OID_DATA pOidData = malloc( sizeof(PACKET_OID_DATA) + MAX_OID_DATA );
NetType *type = malloc(sizeof(NetType));
UINT speed_Mbps = 0;
BOOL isWinNT = FALSE;
int i;
DWORD dwVersion;
DWORD dwWindowsMajorVersion;
//unicode strings (winnt)
WCHAR AdapterName[8192]; // string that contains a list of the network adapters
WCHAR *temp,*temp1;
//ascii strings (win95)
char AdapterNamea[8192]; // string that contains a list of the network adapters
char *tempa,*temp1a;
int AdapterNum=0,Open;
unsigned long AdapterLength;
FILE * inifile;
char speed_value[10];
char *MAC_value = malloc( 13*sizeof(char) );
char *temp2 = malloc( 13*sizeof(char) );
//interfaceArg specifies the interface # passed fron configchange.pl
//set interfaceArg to argv[1] if arguments are passed
int interfaceArg = 0;
if ( argc>1 && argv[1] )
{
interfaceArg = atoi(argv[1]);
}
// obtain the name of the adapters installed on this machine
//printf("Adapters installed:\n");
i=0;
// the data returned by PacketGetAdapterNames is different in Win95 and in WinNT.
// We have to check the os on which we are running
dwVersion=GetVersion();
dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
if (!(dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4))
{ // Windows NT
isWinNT = TRUE;
AdapterLength=sizeof(AdapterName);
PacketGetAdapterNames((char*)AdapterName,&AdapterLength);
temp=AdapterName;
temp1=AdapterName;
while ((*temp!='\0')||(*(temp-1)!='\0'))
{
if (*temp=='\0')
{
memcpy(AdapterList[i],temp1,(temp-temp1)*2);
temp1=temp+1;
i++;
}
temp++;
}
AdapterNum=i;
// we want to automate the adaptor selection process
// but if there are more than one to choose from, we can't
// so
if (AdapterNum>1)
{
for (i=0;i<AdapterNum;i++)
{
wprintf(L"\n%d- %s\n",i+1,AdapterList[i]);
}
printf("\n");
}
}
else //windows 95
{
AdapterLength=sizeof(AdapterNamea);
PacketGetAdapterNames(AdapterNamea,&AdapterLength);
tempa=AdapterNamea;
temp1a=AdapterNamea;
while ((*tempa!='\0')||(*(tempa-1)!='\0'))
{
if (*tempa=='\0')
{
memcpy(AdapterList[i],temp1a,tempa-temp1a);
temp1a=tempa+1;
i++;
}
tempa++;
}
AdapterNum=i;
// we want to automate the adaptor selection process
// but if there are more than one to choose from, we can't
// so
if (AdapterNum>1)
{
printf("Adapters installed:\n");
for (i=0;i<AdapterNum;i++)
{
printf("\n%d- %s\n",i+1,AdapterList[i]);
}
printf("\n");
}
}
// we want to automate the adaptor selection process
// but if there are more than one to choose from, we can't
// so
//
if (AdapterNum>1)
{
if ( (interfaceArg>AdapterNum)||(interfaceArg<1) )
{
do
{
printf("Select the number of the adapter to use : ");scanf("%d",&Open);
if (Open>AdapterNum) printf("\nThe number must be smaller than %d",AdapterNum);
} while (Open>AdapterNum);
}
else
{
Open = interfaceArg;
}
}
else
{
Open = AdapterNum;
}
lpAdapter = PacketOpenAdapter(AdapterList[Open-1]);
MAC_value[0] = '\0';
temp2[0] = '\0';
speed_value[0] = '\0';
if( NULL != lpAdapter)
{
if ( TRUE == PacketGetNetType (lpAdapter, type) )
{
speed_Mbps = type->LinkSpeed / 1000000; // LinkSpeed is in bits per second
}
else
printf("Could not read Ethernet card's speed\n");
if ( type->LinkType != NdisMedium802_3)
printf("NOT Ethernet802.3 card.\nNetwork Interface not supported\n");
else
{
pOidData->Oid = OID_802_3_CURRENT_ADDRESS;
pOidData->Length = MAX_OID_DATA;
if ( TRUE == PacketRequest(lpAdapter, FALSE , pOidData) )
{
// get info obtained
// printf("Physical address read: ");
/* printf("%x %x %x %x %x %x\n", pOidData->Data[0], pOidData->Data[1],
pOidData->Data[2],pOidData->Data[3],
pOidData->Data[4],pOidData->Data[5]
);*/
pOidData->Data[0] += 2; // changing address from global to local
for( i=0; i<6; i++ )
{
strcpy( temp2, MAC_value);
if( pOidData->Data[i] > 15 )
// has 2 hex digits
sprintf( MAC_value, "%s%x", temp2, pOidData->Data[i]);
else
sprintf( MAC_value, "%s0%x", temp2, pOidData->Data[i]);
}
}
else
printf("Failed to read physical address of Ethernet card\n");
}
free(pOidData);
free(type);
PacketCloseAdapter( lpAdapter );
}
else
{
// lpAdapter NULL
printf("Problem with opening adapter (packet.lib issue)\n");
return (1);
}
inifile = fopen(EPOC_INI_FILE, "a"); // to create if does exist
if ( NULL != inifile )
fclose(inifile);
else
{
printf("Can't create or access %s.\n\n", EPOC_INI_FILE);
return 0;
}
if ( 0 == replace_in_inifile( ETHER_NIF_ENTRY, AdapterList[Open-1], isWinNT ) )
printf( "Netcards using adapter %d\n", Open );
else
{
return 0;
}
if ( 0 != replace_in_inifile( ETHER_MAC_ENTRY, MAC_value, FALSE ) )
{
printf("Couldn't write MAC address to %s file\n", EPOC_INI_FILE);
return (1);
}
if( 0 != speed_Mbps )
sprintf( speed_value, "%dMbps", speed_Mbps);
if ( 0 != replace_in_inifile( ETHER_SPEED_ENTRY, speed_value, FALSE ) )
{
printf("Couldn't write speed value to %s file\n", EPOC_INI_FILE);
return (1);
}
//printf("Netcards has written settings to %s.\n\n", EPOC_INI_FILE);
free(MAC_value);
free(temp2);
return (0);
}
int
libnet_win32_write_raw_ipv4(libnet_t *l, const uint8_t *payload, uint32_t payload_s)
{
static BYTE dst[ETHER_ADDR_LEN];
static BYTE src[ETHER_ADDR_LEN];
uint8_t *packet = NULL;
uint32_t packet_s;
LPPACKET lpPacket = NULL;
DWORD remoteip = 0;
DWORD BytesTransfered;
NetType type;
struct libnet_ipv4_hdr *ip_hdr = NULL;
memset(dst, 0, sizeof(dst));
memset(src, 0, sizeof(src));
packet_s = payload_s + l->link_offset;
packet = (uint8_t *)malloc(packet_s);
if (packet == NULL)
{
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"%s(): failed to allocate packet\n", __func__);
return (-1);
}
/* we have to do the IP checksum */
if (libnet_do_checksum(l, payload, IPPROTO_IP, LIBNET_IPV4_H) == -1)
{
/* error msg set in libnet_do_checksum */
return (-1);
}
/* MACs, IPs and other stuff... */
ip_hdr = (struct libnet_ipv4_hdr *)payload;
memcpy(src, libnet_get_hwaddr(l), sizeof(src));
remoteip = ip_hdr->ip_dst.S_un.S_addr;
/* check if the remote station is the local station */
if (remoteip == libnet_get_ipaddr4(l))
{
memcpy(dst, src, sizeof(dst));
}
else
{
memcpy(dst, libnet_win32_get_remote_mac(l, remoteip), sizeof(dst));
}
PacketGetNetType(l->lpAdapter, &type);
switch(type.LinkType)
{
case NdisMedium802_3:
libnet_win32_build_fake_ethernet(dst, src, ETHERTYPE_IP, payload,
payload_s, packet, l , 0);
break;
case NdisMedium802_5:
libnet_win32_build_fake_token(dst, src, ETHERTYPE_IP, payload,
payload_s, packet, l, 0);
break;
case NdisMediumFddi:
break;
case NdisMediumWan:
case NdisMediumAtm:
case NdisMediumArcnet878_2:
default:
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"%s(): network type (%d) is not supported\n", __func__,
type.LinkType);
return (-1);
break;
}
BytesTransfered = -1;
if ((lpPacket = PacketAllocatePacket()) == NULL)
{
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"%s(): failed to allocate the LPPACKET structure\n", __func__);
return (-1);
}
PacketInitPacket(lpPacket, packet, packet_s);
/* PacketSendPacket returns a BOOLEAN */
if (PacketSendPacket(l->lpAdapter, lpPacket, TRUE))
{
BytesTransfered = packet_s;
}
PacketFreePacket(lpPacket);
free(packet);
return (BytesTransfered);
}
pcap_t *
pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
char *ebuf)
{
register pcap_t *p;
NetType type;
#ifdef REMOTE
/*
Retrofit; we have to make older applications compatible with the remote capture
So, we're calling the pcap_open_remote() from here, that is a very dirty thing.
Obviously, we cannot exploit all the new features; for instance, we cannot
send authentication, we cannot use a UDP data connection, and so on.
*/
char host[PCAP_BUF_SIZE + 1];
char port[PCAP_BUF_SIZE + 1];
char name[PCAP_BUF_SIZE + 1];
int srctype;
if (pcap_parsesrcstr(device, &srctype, host, port, name, ebuf) )
return NULL;
if (srctype == PCAP_SRC_IFREMOTE)
{
p= pcap_opensource_remote(device, NULL, ebuf);
if (p == NULL)
return NULL;
p->snapshot= snaplen;
p->timeout= to_ms;
p->rmt_flags= (promisc) ? PCAP_OPENFLAG_PROMISCUOUS : 0;
return p;
}
#endif
/* Init WinSock */
wsockinit();
p = (pcap_t *)malloc(sizeof(*p));
if (p == NULL) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", pcap_strerror(errno));
return (NULL);
}
memset(p, 0, sizeof(*p));
p->adapter=NULL;
p->adapter=PacketOpenAdapter(device);
if (p->adapter==NULL) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "Error opening adapter: %s", pcap_win32strerror());
return NULL;
}
/*get network type*/
if(PacketGetNetType (p->adapter,&type)==FALSE)
{
snprintf(ebuf, PCAP_ERRBUF_SIZE, "Cannot determine the network type: %s", pcap_win32strerror());
goto bad;
}
/*Set the linktype*/
switch (type.LinkType) {
case NdisMediumWan:
p->linktype = DLT_EN10MB;
break;
case NdisMedium802_3:
p->linktype = DLT_EN10MB;
break;
case NdisMediumFddi:
p->linktype = DLT_FDDI;
break;
case NdisMedium802_5:
p->linktype = DLT_IEEE802;
break;
case NdisMediumArcnetRaw:
p->linktype = DLT_ARCNET;
break;
case NdisMediumArcnet878_2:
p->linktype = DLT_ARCNET;
break;
case NdisMediumAtm:
p->linktype = DLT_ATM_RFC1483;
break;
default:
p->linktype = DLT_EN10MB; /*an unknown adapter is assumed to be ethernet*/
break;
}
/* Set promisquous mode */
if (promisc) PacketSetHwFilter(p->adapter,NDIS_PACKET_TYPE_PROMISCUOUS);
else PacketSetHwFilter(p->adapter,NDIS_PACKET_TYPE_ALL_LOCAL);
/* Set the buffer size */
p->bufsize = PcapBufSize;
p->buffer = (u_char *)malloc(PcapBufSize);
if (p->buffer == NULL) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", pcap_strerror(errno));
goto bad;
}
p->snapshot = snaplen;
/* allocate Packet structure used during the capture */
if((p->Packet = PacketAllocatePacket())==NULL){
snprintf(ebuf, PCAP_ERRBUF_SIZE, "failed to allocate the PACKET structure");
goto bad;
}
PacketInitPacket(p->Packet,(BYTE*)p->buffer,p->bufsize);
/* allocate the standard buffer in the driver */
if(PacketSetBuff( p->adapter, SIZE_BUF)==FALSE)
{
snprintf(ebuf, PCAP_ERRBUF_SIZE,"driver error: not enough memory to allocate the kernel buffer\n");
goto bad;
}
/* tell the driver to copy the buffer only if it contains at least 16K */
if(PacketSetMinToCopy(p->adapter,16000)==FALSE)
{
snprintf(ebuf, PCAP_ERRBUF_SIZE,"Error calling PacketSetMinToCopy: %s\n", pcap_win32strerror());
goto bad;
}
PacketSetReadTimeout(p->adapter, to_ms);
return (p);
bad:
if (p->adapter)
PacketCloseAdapter(p->adapter);
if (p->buffer != NULL)
free(p->buffer);
free(p);
return (NULL);
}
