From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/13522 Path: news.gmane.org!.POSTED!not-for-mail From: Rich Felker Newsgroups: gmane.linux.lib.musl.general Subject: Re: DNS resolver patch Date: Thu, 6 Dec 2018 16:01:52 -0500 Message-ID: <20181206210152.GC23599@brightrain.aerifal.cx> References: <1934405743.3003283.1544074315707.JavaMail.zimbra@totalphase.com> <87r2eu1zbc.fsf@oldenburg2.str.redhat.com> <20181206164820.07cc96f4@ncopa-desktop.copa.dup.pw> <87ftvaiknn.fsf@oldenburg2.str.redhat.com> <466f7852-8535-38d7-afe5-23eb491842d8@adelielinux.org> <87pnuegzpq.fsf@oldenburg2.str.redhat.com> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: blaine.gmane.org 1544130006 24791 195.159.176.226 (6 Dec 2018 21:00:06 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 6 Dec 2018 21:00:06 +0000 (UTC) User-Agent: Mutt/1.5.21 (2010-09-15) Cc: "A. Wilcox" , musl@lists.openwall.com To: Florian Weimer Original-X-From: musl-return-13538-gllmg-musl=m.gmane.org@lists.openwall.com Thu Dec 06 22:00:02 2018 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by blaine.gmane.org with smtp (Exim 4.84_2) (envelope-from ) id 1gV0kc-0006Ht-AR for gllmg-musl@m.gmane.org; Thu, 06 Dec 2018 22:00:02 +0100 Original-Received: (qmail 18095 invoked by uid 550); 6 Dec 2018 21:02:11 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Original-Received: (qmail 18074 invoked from network); 6 Dec 2018 21:02:10 -0000 Content-Disposition: inline In-Reply-To: <87pnuegzpq.fsf@oldenburg2.str.redhat.com> Original-Sender: Rich Felker Xref: news.gmane.org gmane.linux.lib.musl.general:13522 Archived-At: On Thu, Dec 06, 2018 at 09:36:01PM +0100, Florian Weimer wrote: > * A. Wilcox: > > > On 12/06/18 12:18, Florian Weimer wrote: > >> The alternative, using a NOERROR/NODATA response, confuses musl search > >> processing. > > > > ??? > > > > The musl resolver should be able to handle a resolver returning NODATA. > > That is popular for having a separate extranet infrastructure - your > > extranet DNS only contains records for your local domain and returns > > NODATA for requests outside that domain. > > > > If you are correct that such a response "confuses musl search > > processing", that's a bug in musl that needs to be fixed. > > > > I don't know if it was merged. That patch didn't (and fundamentally can't) produce fully-consistent results (consistent with non-A/AAAA queries). Something similar (with configurable opt-in) might be sufficient if there were a need, but supposedly the underlying issue with Cloudflare was fixed. So in summary, it hasn't been merged. Rich