Date: Sun, 20 Oct 1996 23:28:53 +0200 (MET DST) From: Matthias Urlichs <smurf@smurf.noris.de> To: fenner@parc.xerox.com (Bill Fenner) Cc: lidl@va.pubnix.com, freebsd-arch@freebsd.org, tech-net@netbsd.org, freebsd-bugs@freebsd.org, netbsd-bugs@netbsd.org Subject: Re: proposed kernel change for IP_HDRINCL Message-ID: <96Oct20.232857-0200met_dst.2654-225%2B477@work.smurf.noris.de> In-Reply-To: <96Oct20.121736pdt.177480@crevenia.parc.xerox.com> from "Bill Fenner" at Oct 20, 96 12:17:26 pm
next in thread | previous in thread | raw e-mail | index | archive | help
Hi,
Bill Fenner wrote:
>
>In message <QAA01789.199610182022@arrow.va.pubnix.com> you write:
>>Currently, when using setsockopt() with the IP_HDRINCL flag, most
>>fields of the IP header are passed into the kernel in network byte
>>order, except for the ip_off and ip_len fields.
>
>I think that there should be a standard macro defined in <netinet/ip.h>
>that says whether or not this change is in the kernel, so that people
>don't have to send themselves a packet to see whether the kernel byte
>swaps or not.
>
Right.
>Do you have any desire to do anything about raw_input as well? Various
>fields are messed with on the way in, too.
>
IMHO, a raw packet should be a _raw_ packet. That means that the kernel
shouldn't fiddle with _anything_.
FWIW, Linux does things the "really raw" way, too; thus, programs which
rely on these things already have the required patches, these days.
--
Airplanes are interesting toys but of no military value.
-- Marechal Ferdinand Foch, Professor of Strategy,
Ecole Superieure de Guerre
--
Matthias Urlichs \ noris network GmbH / Xlink-POP Nürnberg
Schleiermacherstraße 12 \ Linux+Internet / EMail: urlichs@noris.de
90491 Nürnberg (Germany) \ Consulting+Programming+Networking+etc'ing
PGP: 1024/4F578875 1B 89 E2 1C 43 EA 80 44 15 D2 29 CF C6 C7 E0 DE
Click <A HREF="http://info.noris.de/~smurf/finger">here</A>. 42
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?96Oct20.232857-0200met_dst.2654-225%2B477>