From mboxrd@z Thu Jan  1 00:00:00 1970
From: kristof@sigsegv.be (Kristof Provost)
Date: Tue, 16 Sep 2014 17:05:01 +0200
Subject: How to debug "Malformed Packet (Exception occurred)" when send a
	udp packet?
In-Reply-To: <CA+5jrfma=U6csKipwzGmg6JS_ra6x+rkRx=Cy1+H7PfPsNXTDA@mail.gmail.com>
References: <CA+5jrfma=U6csKipwzGmg6JS_ra6x+rkRx=Cy1+H7PfPsNXTDA@mail.gmail.com>
Message-ID: <20140916150500.GD22564@vega.codepro.be>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On 2014-09-07 17:12:33 (+0800), lx <lxlenovostar@gmail.com> wrote:
>       I want to send a udp packet in kernel module. the codes is:
Why?

> // iph->version = 4; iph->ihl = 5;
> put_unaligned(0x45, (unsigned char *)send_iph);
> send_iph->tos      = 0;
> put_unaligned(htons(iph_len), &(send_iph->tot_len));
                ^- That's probably your problem.

Regards,
Kristof