Subject: Re: uipc_socket.c
To: None <tech-kern@NetBSD.ORG>
From: Christoph Badura <firstname.lastname@example.org>
Date: 08/16/1996 02:17:00
Michael Graff writes:
>However, I don't agree that we should allow "bad" packets to be transmitted
>using sendto(). IMHO, if you are going to do this, use BPF directly.
Why? Do you have any reasons for that?
>Right now, although I have not verified this, any raw-mode socket can
>crash the machine by setting the field ip->ip_len to be greater than the
>data in the mbuf chain. This is _wrong_ and will cause a kernel panic.
>IMHO, this is a bug, and should not be allowed...
Correct. It should not happen that the machine crashes if ip->ip_len
has a bad value. However, that has nothing to do with the ability to
send packets with bad ip->ip_len values. The kernel should be fixed
to not panic in that case and not to silently "correct" the value.
Christoph Badura email@example.com
You don't need to quote my .signature. Everyone has seen it by now.
Besides, it doesn't add anything to the current thread.