Date: Mon, 16 Apr 2001 12:50:53 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Barney Wolff <barney@databus.com> Cc: "E.B. Dreger" <eddy+public+spam@noc.everquick.net>, Kris Kennaway <kris@obsecurity.org>, Wes Peters <wes@softweyr.com>, freebsd-security@FreeBSD.ORG, net@FreeBSD.ORG, provos@OpenBSD.org Subject: Re: non-random IP IDs Message-ID: <20010416125053.A11446@xor.obsecurity.org> In-Reply-To: <20010416154249.A49858@mx.databus.com>; from barney@databus.com on Mon, Apr 16, 2001 at 03:42:49PM -0400 References: <20010416121019.D10023@xor.obsecurity.org> <Pine.LNX.4.20.0104161919390.26335-100000@www.everquick.net> <20010416154249.A49858@mx.databus.com>
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--J2SCkAp4GZ/dPZZf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 16, 2001 at 03:42:49PM -0400, Barney Wolff wrote: > If ip_randomid() is an asm rather than C code, I have sometimes > seen problems with an asm func calling another asm func. That > was long ago and far away, but is the only reason I can think of > for that change. >=20 > But whether the id is random or a counter, there is no reason to > htons it, as long as it's treated consistently, with externals > never compared with internals. Surely that can't work since the purpose of that field is for received packet ordering (unless I'm wrong, I'm not an IPv4 guru and only skimmed the RFC), and what's ordered in network order isn't ordered in host order. Kris --J2SCkAp4GZ/dPZZf Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE6200cWry0BWjoQKURAtq2AJ0X7Nt1XcCFlr9OOcWdfNtY843/kQCdEfDR 8PfVfL5oMqwnxDN9VD0TJGk= =9ZPJ -----END PGP SIGNATURE----- --J2SCkAp4GZ/dPZZf-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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