(adsbygoogle = window.adsbygoogle || []).push({}); ok guys seen as though this got removed from ngb here goes......







#define SRC_ETHER_ADDR "aa:aa:aa:aa:aa:aa"
#define DST_ETHER_ADDR "bb:bb:bb:bb:bb:bb"
#define SRC_IP "192.168.0.10"
#define DST_IP "192.168.0.11"

typedef struct EthernetHeader{

unsigned char destination[6];
unsigned char source[6];
unsigned short protocol;

}EthernetHeader;

typedef struct ArpHeader{

unsigned short hardware_type;
unsigned short protocol_type;
unsigned char hard_addr_len;
unsigned char prot_addr_len;
unsigned short opcode;
unsigned char source_hardware[6];
unsigned char source_ip[4];
unsigned char dest_hardware[6];
unsigned char dest_ip[4];
}ArpHeader;


int CreateRawSocket(int protocol_to_sniff)
{
int rawsock;

if((rawsock = socket(PF_PACKET, SOCK_RAW, htons(protocol_to_sniff)))== -1)
{
perror("Error creating raw socket: ");
exit(-1);
}

return rawsock;
}

int BindRawSocketToInterface(char *device, int rawsock, int protocol)
{

struct sockaddr_ll sll;
struct ifreq ifr;

bzero(&sll, sizeof(sll));
bzero(&ifr, sizeof(ifr));

/* First Get the Interface Index */


strncpy((char *)ifr.ifr_name, device, IFNAMSIZ);
if((ioctl(rawsock, SIOCGIFINDEX, &ifr)) == -1)
{
printf("Error getting Interface index !\n");
exit(-1);
}

/* Bind our raw socket to this interface */

sll.sll_family = AF_PACKET;
sll.sll_ifindex = ifr.ifr_ifindex;
sll.sll_protocol = htons(protocol);


if((bind(rawsock, (struct sockaddr *)&sll, sizeof(sll)))== -1)
{
perror("Error binding raw socket to interface\n");
exit(-1);
}

return 1;

}


int SendRawPacket(int rawsock, unsigned char *pkt, int pkt_len)
{
int sent= 0;

/* A simple write on the socket ..thats all it takes ! */

if((sent = write(rawsock, pkt, pkt_len)) != pkt_len)
{
/* Error */
printf("Could only send %d bytes of packet of length %d\n", sent, pkt_len);
return 0;
}

return 1;


}

EthernetHeader* CreateEthernetHeader(char *src_mac, char *dst_mac, int protocol)
{
EthernetHeader *ethernet_header;


ethernet_header = (EthernetHeader *)malloc(sizeof(EthernetHeader));

/* copy the Src mac addr */

memcpy(ethernet_header->source, (void *)ether_aton(src_mac), 6);

/* copy the Dst mac addr */

memcpy(ethernet_header->destination, (void *)ether_aton(dst_mac), 6);

/* copy the protocol */

ethernet_header->protocol = htons(protocol);

/* done ...send the header back */

return (ethernet_header);
}

ArpHeader *CreateArpHeader(void)
{
ArpHeader *arp_header;
in_addr_t temp;

arp_header = (ArpHeader *)malloc(sizeof(struct ArpHeader));

/* Fill the ARP header */
arp_header->hardware_type = htons(ARPHRD_ETHER);
arp_header->protocol_type = htons(ETHERTYPE_IP);
arp_header->hard_addr_len = 6;
arp_header->prot_addr_len = 4;
arp_header->opcode = htons(ARPOP_REPLY);
memcpy(arp_header->source_hardware, (void *)ether_aton(SRC_ETHER_ADDR) , 6);
temp = inet_addr(SRC_IP);
memcpy(&(arp_header->source_ip), &temp, 4);
memcpy(arp_header->dest_hardware, (void *) ether_aton(DST_ETHER_ADDR) , 6);
temp = inet_addr(DST_IP);
memcpy(&(arp_header->dest_ip), &temp, 4);

return arp_header;
}



/* argv[1] is the device e.g. eth0 */

main(int argc, char **argv)
{

int raw;
unsigned char *packet;
EthernetHeader *ethernet_header;
ArpHeader *arp_header;
int pkt_len;

/* Create the raw socket */

raw = CreateRawSocket(ETH_P_ALL);

/* Bind raw socket to interface */

BindRawSocketToInterface(argv[1], raw, ETH_P_ALL);

/* create Ethernet header */

ethernet_header = CreateEthernetHeader(SRC_ETHER_ADDR, DST_ETHER_ADDR, ETHERTYPE_ARP);

/* Create ARP header */

arp_header = CreateArpHeader();

/* Find packet length */

pkt_len = sizeof(EthernetHeader) + sizeof(ArpHeader);

/* Allocate memory to packet */

packet = (unsigned char *)malloc(pkt_len);

/* Copy the Ethernet header first */

memcpy(packet, ethernet_header, sizeof(EthernetHeader));

/* Copy the ARP header - but after the ethernet header */

memcpy((packet + sizeof(EthernetHeader)), arp_header, sizeof(ArpHeader));

/* Send the packet out ! */

if(!SendRawPacket(raw, packet, pkt_len))
{
perror("Error sending packet");
}
else
printf("Packet sent successfully\n");

/* Free the memory back to the heavenly heap */

free(ethernet_header);
free(arp_header);
free(packet);

close(raw);

return 0;
}

im sooo confused

How are you confused sir?

I can understand its use but not how to use it or even make it work...

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It gives a basic understanding + the raw socket script you see.

wats a raw socket

thats a basic understanding

can u do this with wireless Ethernet?

did it but i dont get lazer....

Did you just send it?