From owner-freebsd-net@freebsd.org  Mon Nov 16 09:24:03 2015
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id B023AA30DB9
 for <freebsd-net@mailman.ysv.freebsd.org>;
 Mon, 16 Nov 2015 09:24:03 +0000 (UTC) (envelope-from hps@selasky.org)
Received: from mail.turbocat.net (mail.turbocat.net
 [IPv6:2a01:4f8:d16:4514::2])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 77DDB1621
 for <freebsd-net@freebsd.org>; Mon, 16 Nov 2015 09:24:03 +0000 (UTC)
 (envelope-from hps@selasky.org)
Received: from laptop015.home.selasky.org (unknown [62.141.129.119])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (No client certificate requested)
 by mail.turbocat.net (Postfix) with ESMTPSA id 759B21FE023
 for <freebsd-net@freebsd.org>; Mon, 16 Nov 2015 10:24:00 +0100 (CET)
To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Subject: Question about multicast groups in FreeBSD
Message-ID: <5649A117.7060504@selasky.org>
Date: Mon, 16 Nov 2015 10:25:43 +0100
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101
 Thunderbird/38.2.0
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Nov 2015 09:24:03 -0000

Hi,

Does FreeBSD have any IGMP APIs similar to Linux's "include/linux/igmp.h" ?

To join a multicast group, you would in Linux do:

 > + struct netdev *in_dev;
> +                   if (join)
> +                          ip_mc_inc_group(in_dev,
> +                                          *(__be32 *)(mgid->raw+12));
> +                   else
> +                          ip_mc_dec_group(in_dev,
> +                                          *(__be32 *)(mgid->raw+12));

Is there any equivalent to this in FreeBSD?

Thank you!

--HPS