From owner-freebsd-questions  Fri Jun  4  5:20:27 1999
Delivered-To: freebsd-questions@freebsd.org
Received: from ikar.elect.ru (unknown [195.161.50.139])
	by hub.freebsd.org (Postfix) with ESMTP id 70FCC14E83
	for <freebsd-questions@FreeBSD.ORG>; Fri,  4 Jun 1999 05:19:50 -0700 (PDT)
	(envelope-from pavel@ikar.elect.ru)
Received: from localhost (pavel@localhost)
	by ikar.elect.ru (8.8.7/8.8.7) with SMTP id QAA14001;
	Fri, 4 Jun 1999 16:18:55 +0400 (MSD)
	(envelope-from pavel@ikar.elect.ru)
Date: Fri, 4 Jun 1999 16:18:45 +0400 (MSD)
From: "Pavel V. Antipov" <pavel@ikar.elect.ru>
To: Riccardo Veraldi <riccardo@righi.ml.org>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Ethernet-level connection
In-Reply-To: <Pine.BSF.4.10.9906041357530.18044-100000@righi.ml.org>
Message-ID: <Pine.BSF.3.96.990604161331.13837B-100000@ikar.elect.ru>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG



On Fri, 4 Jun 1999, Riccardo Veraldi wrote:

> 
> 
> Hello.
> I did a FreeBSD port called sniff. and to have access to ethernet packets
> I just used tcpdump. AS well tcpdump is written using libpcap.
> I wanted to access directly to the ethernet device without using libpcap
> or tcpdump but since now noone could answer to my question.
> Do u have any clue about it ?
> thanks 
> 
> Rick
> 

Hi !

I saw PF_PACKET parameter for system call "socket" in linux. In FreeBSD
thare is PF_LINK (see <sys/sockst.h>).
I tried to execute this program:

#include <sys/types.h>
#include <sys/socket.h>
#include <iostream.h>
#include <errno.h>

main(){
 cout << socket(AF_LINK, SOCK_RAW, 0)<<endl;
 cout<<errno<<endl;
}

As a result errno == 43. I use 2.2.5 and hope that in latest versions of
FreeBSD I'll find direct access to Ethernet packets via
socket & recvfrom & sendto system calls.

Pavel





To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message