From owner-freebsd-hackers@FreeBSD.ORG Tue Jun 28 19:58:12 2011 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 31C08106564A for ; Tue, 28 Jun 2011 19:58:12 +0000 (UTC) (envelope-from utisoft@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id E60A18FC16 for ; Tue, 28 Jun 2011 19:58:11 +0000 (UTC) Received: by iwr19 with SMTP id 19so644193iwr.13 for ; Tue, 28 Jun 2011 12:58:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=7UEF5SSyZZDxu12AX6hOALTuTACpVO68/M2oroEQVhE=; b=RKc2/6oUXFZ6hwl5BfeIhmEunrnrBGSB8c31e/j0m+4A+j51V6XuWyDYXRG2rX+KnE rz1iJmKu8EcmlUPHbPuC/TO3IlwMtU3DSGuc4U8Qftz6vS2Plcj5XRwGTBVOVAfrUyas xe2oAdcbmJZgyH8PIiTk8Bi648pkfnUezjAFQ= Received: by 10.231.114.86 with SMTP id d22mr1020519ibq.45.1309291091106; Tue, 28 Jun 2011 12:58:11 -0700 (PDT) MIME-Version: 1.0 Sender: utisoft@gmail.com Received: by 10.231.49.193 with HTTP; Tue, 28 Jun 2011 12:57:41 -0700 (PDT) In-Reply-To: References: <20110628165911.GC44024@dan.emsphone.com> From: Chris Rees Date: Tue, 28 Jun 2011 20:57:41 +0100 X-Google-Sender-Auth: MKBnejx4atjo5PYVTGPvRLbN3Ns Message-ID: To: jhell , Greg Lewis Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: hackers@freebsd.org, Dan Nelson Subject: Re: Default value for UIDs X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jun 2011 19:58:12 -0000 On 28 June 2011 20:50, jhell wrote: > On Tue, Jun 28, 2011 at 06:30:23PM +0100, Chris Rees wrote: >> On 28 June 2011 17:59, Dan Nelson wrote: >> > In the last episode (Jun 28), Chris Rees said: >> >> Hi all, >> >> >> >> [crees@zeus]~% tail -n 2 /usr/ports/UIDs >> >> dbxml:*:949:949::0:0:dbXML user:/nonexistent:/sbin/nologin >> >> nobody:*:65534:65534::0:0:Unprivileged user:/nonexistent:/usr/sbin/no= login >> >> [crees@zeus]~% grep crees /etc/passwd >> >> crees:*:1001:1001:Chris Rees:/home/crees:/bin/tcsh >> >> chris:*:1001:1001:Chris Rees:/home/crees:/bin/tcsh >> >> [crees@zeus]~% >> >> >> >> I'm a little concerned at how close the ports UIDs are getting to the >> >> username space... >> > >> > There are only 216 entries in UIDs, though, so if people are just usin= g >> > "last entry + 1" when adding new ones, they should probably start fill= ing >> > the gaps instead. =A0The 100s and 200s are pretty dense, but 350-399 o= nly has >> > 5 entries, 400-499 has 4, 600-699 has 7, 700-799 has 3, etc. >> > >> >> Thank you for pointing that out (d'oh). >> >> However, perhaps we could still address the *potential* problems. To >> use one example, Debian has (as long as I can remember) used 10001 for >> the first username. When we have 65535 - 99 UIDs to play with, >> expansion like this isn't a problem. >> >> Could it be worth it? Think of ten years down the line. >> > > Best part would be to find every port that doesnt need a statically > allocated UID/GID and just dynamically allocate them after a certain > range '30000-50000' or whatever for ~20,000 ports and divide that > namespace up by category. > > > dbxml really does it really need to be static ? it just needs to run. > > Also: (stable/8) /usr/ports/UIDs > dbxml:*:945:945::0:0:& user:/nonexistent:/sbin/nologin > dbxml:*:949:949::0:0:dbXML user:/nonexistent:/sbin/nologin > > Which one of these are we planning on actually using here ? > Interesting... glewis added the second one. Greg, what did the pointyhat say? http://www.freebsd.org/cgi/cvsweb.cgi/ports/UIDs.diff?r1=3D1.156;r2=3D1.155= ;f=3Dh Chris