From: Sriram Raghunathan <srirr@nsn-intra.net>
To: ext Philippe Troin <phil@fifi.org>,
Sriram Raghunathan <sriram.r@nsn.com>
Cc: netdev@vger.kernel.org
Subject: Re: About Raw socket, vlan + ip header
Date: Wed, 04 Mar 2015 10:06:58 +0530 [thread overview]
Message-ID: <54F68BEA.8040605@nsn-intra.net> (raw)
In-Reply-To: <1425402181.25299.1.camel@niobium.home.fifi.org>
Hi Philippe,
Using SOCK_RAW.
Sriram
On Tuesday 03 March 2015 10:33 PM, ext Philippe Troin wrote:
> On Tue, 2015-03-03 at 10:44 +0530, Sriram Raghunathan wrote:
>> Writing a socket program where, I'm trying to construct a ether frame
>> with vlan id and copying ip header there after. By using PF_PACKET
>> family.
>>
>> But when I do a sendto, the ip header is stripped off from the
>> packet. Could you please let me know how to go about?
> man 7 packet
>
> ...
> The socket_type is either SOCK_RAW for raw packets including the link
> level header or SOCK_DGRAM for cooked packets with the link level
> header removed. The link level header information is available in a
> common format in a sockaddr_ll. protocol is the IEEE 802.3 protocol
> ...
>
> Are you opening a SOCK_RAW or a SOCK_DGRAM PF_PACKET socket?
>
> Phil.
>
prev parent reply other threads:[~2015-03-04 4:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-03 5:14 About Raw socket, vlan + ip header Sriram Raghunathan
2015-03-03 17:03 ` Philippe Troin
2015-03-04 4:36 ` Sriram Raghunathan [this message]
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