( bind_return = bind(packet_socket,(struct sockaddr_ll
*)&addr,sizeof(addr)); )
this shud work ???
please see ..
hth,
sai
>>> Amith <amith@multitech.co.in> 2/16/2004 4:11:13 PM >>>
Vijaymahantesh Kalakoti wrote:
>Hi amith,
>
>I think the problem can be from two causes,
>
>1. the mode in which program is running.
> since u r receiving the packets this may not be the problem.
>
>2. bind the socket. *******************************
> this may be the cause of it. Since u have created socket at
>datalink layer( PF_PACKET ), & it is not bind to a device, then u may
get
>error.
> pls bind the socket using the sockaddr_ll structure .
>the manual page( man packet ) contains the information for this.
>
>
>I am not sure of my answer. But give a try.
>
>I hope it will solve u r problem.
>
>Thanks & Regards.
>vijay kalkoti
>
>
hi Vijay,
i'am not able to bind the Socket with these values
could
u just check whether they r proper ? the man pages say it is enough to
initialize the struct's 2 feilds - ifindex and family (as far as i cud
understand i.e ) . Could anyone help me initialize the struct ?
when i do this bind does not succeed with " bind failed :Invalid
argument " could someone help ?
struct sockaddr_ll addr;
addr.sll_ifindex = 0; // guessing
addr.sll_protocol = htons(ETH_P_802_3); /*defined in if_ether.h */
bind_return = bind(packet_socket,(struct sockaddr
*)&addr,sizeof(addr));
if(bind_return != 0)
{
perror("Bind failed :");
exit(1);
}
printf(" Bind Success : returned %d\n",bind_return);
while( 1 )
{
int count=0;
printf("========================================= \n");
len = read(packet_socket,buffer,sizeof(buffer));
pkt = (struct Packet *)buffer;
if((pkt->ether.type[0] == 0X08) && (pkt->ether.type[1]
==0x06))
{
printf("ARP :");
Print_Arp_Packet(pkt);
Send_Arp_Packet(pkt);
}
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