From: "Tobin Park" <shinywind@hotmail.com>
To: linux-kernel@vger.kernel.org
Subject: In ip.c (Kernel 1.3.0)
Date: Sat, 01 Sep 2001 01:24:47 +0000 [thread overview]
Message-ID: <F27139LktrLEzdzF2tl000039cc@hotmail.com> (raw)
Hello.
I am studying linux kernel 1.3.0.
In ip.c this sentence appeared.
if(iph->frag_off)
{
if (iph->frag_off & 0x0020)
is_frag|=1;
/*
* Last fragment ?
*/
if (ntohs(iph->frag_off) & 0x1fff)
is_frag|=2;
}
what is that mean is_frag?
what's the difference between is_frag are 1,2,4?
Thank you.
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reply other threads:[~2001-09-01 1:24 UTC|newest]
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