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|
#include <cstdlib>
#include <iostream>
#include <winsock2.h>
#include <windows.h>
#pragma comment(lib,"ws2_32.lib")
#define SIO_RCVALL _WSAIOW(IOC_VENDOR,1)
#define RCVALL_ON 1
#define RCVALL_OFF 0
using namespace std;
/*
Sniffer TCP with Raw Sockets by lilxam
*/
typedef struct iphdr
{
unsigned char IHL:4; // 4-bit header length (in 32-bit words) normally=5 (Means 20 Bytes may be 24 also)
unsigned char Version :4; // 4-bit IPv4 version
unsigned char TypeOfService; // IP type of service
unsigned short TotalLength; // Total length
unsigned short ID; // Unique identifier
unsigned char FlagOffset :5; // Fragment offset field
unsigned char MoreFragment :1;
unsigned char DontFragment :1;
unsigned char ReservedZero :1;
unsigned char FragOffset; //fragment offset
unsigned char Ttl; // Time to live
unsigned char Protocol; // Protocol(TCP,UDP etc)
unsigned short Checksum; // IP checksum
unsigned int Source; // Source address
unsigned int Destination; // Source address
}IP_HDR;
typedef struct tcphdr // ici la TCP
{
unsigned short PortSource;
unsigned short PortDest;
unsigned int seqnum;
unsigned int acknum;
unsigned char unused:4, tcp_hl:4;
unsigned char flags;
unsigned short window;
unsigned short checksum;
unsigned short urgPointer;
} TCP_HDR;
int main(int argc, char *argv[])
{
char ip[100];
unsigned short portS, portD;
char trame[4096];
char *donnees = NULL;
unsigned int option;
/* Accés au réseau */
WSAData wsa;
if(WSAStartup(MAKEWORD(2,2), &wsa) != 0)
{
printf("\n[!]Impossible d'acceder au reseau.\n--- Erreur avec WSAStartup() : %d\n\n", WSAGetLastError());
system("pause");
return 0;
}
/* Creation d'un socket
Référence : http://msdn2.microsoft.com/en-us/library/ms740506(VS.85).aspx
Prototype de la fontionc socket() :
SOCKET WSAAPI socket(
__in int af,
__in int type,
__in int protocol
);
*/
SOCKET sock;
if((sock = socket(AF_INET, SOCK_RAW, IPPROTO_IP)) == INVALID_SOCKET)
{
printf("\n[!]Impossible de creer le socket.\n--- Erreur avec socket() : %d\n\n", WSAGetLastError());
system("pause");
return 0;
}
/* Initialisation des parametres d'écoute */
SOCKADDR_IN sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr("192.168.100.10"); //Votre ip locale
/* sin.sin_addr.s_addr = htonl(INADDR_ANY); ne fonctionne pas !!! */
/* Ecoute du réseau
Prototype de la fonction bind() :
int bind(
__in SOCKET s,
__in const struct sockaddr* name,
__in int namelen
);
*/
if(bind(sock, (SOCKADDR*)&sin, sizeof(sin)) == SOCKET_ERROR)
{
printf("\n[!]Ecoute impossible.\n--- Erreur avec bind() : %d\n\n", WSAGetLastError());
closesocket(sock);
system("pause");
return 0;
}
/* Activation du mode promiscuous
Référence : http://msdn2.microsoft.com/en-us/library/ms741621(VS.85).aspx
Prototype de la fonction WASIoctl() :
int WSAIoctl(
__in SOCKET s,
__in DWORD dwIoControlCode,
__in LPVOID lpvInBuffer,
__in DWORD cbInBuffer,
__out LPVOID lpvOutBuffer,
__in DWORD cbOutBuffer,
__out LPDWORD lpcbBytesReturned,
__in LPWSAOVERLAPPED lpOverlapped,
__in LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine
);
*/
DWORD dwBytesRet;
WSAIoctl(sock,SIO_RCVALL,&option,sizeof(option),NULL,0,&dwBytesRet,NULL,NULL);
/* Gestion des données récupérées sur la trame */
iphdr *HeaderIP=(iphdr*)trame; // voila
tcphdr *HeaderTCP=(tcphdr*)(sizeof(iphdr)+trame);
donnees = (char *)(sizeof(tcphdr)+sizeof(iphdr)+trame);
char tmp[2048];
for(;;)
{
/* En attente de packet */
recv(sock, trame, sizeof(trame), 0);
/* Traitement des données */
printf("\n\n --------| Nouveau Packet |--------");
portS = ntohs(HeaderTCP->PortSource);
portD = ntohs(HeaderTCP->PortDest);
sprintf(ip,"%s:%d",inet_ntoa(*(struct in_addr *)&HeaderIP->Source), portS);
printf("\n [+]IP Source : %s",ip);
sprintf(ip,"%s:%d",inet_ntoa(*(struct in_addr *)&HeaderIP->Destination), portD);
printf("\n [+]IP Destination : %s",ip);
printf("\n [+]IP Version : %d -> 0x%x", HeaderIP->Version, HeaderIP->Version);
printf("\n [+]IP Checksum : %d -> 0x%x", HeaderIP->Checksum, HeaderIP->Checksum);
printf("\n [+]Protocol : %d -> 0x%x", HeaderIP->Protocol, HeaderIP->Protocol);
memset(tmp, 0, sizeof(tmp));
for(int i = 0; i <= 2048; i++)
{
tmp[i] = donnees[i];
}
printf("\n\n -----* Donnees *----- \n\n%s\n [...]\n ------------------------------\n", tmp);
}
closesocket(sock);
system("PAUSE");
return EXIT_SUCCESS;
} |
