Date: Thu, 21 Nov 2013 07:50:42 -0700 From: Ian Lepore <ian@FreeBSD.org> To: =?ISO-8859-1?Q?=D6zkan?= KIRIK <ozkan.kirik@gmail.com> Cc: freebsd-ipfw <freebsd-ipfw@FreeBSD.org>, freebsd-stable <freebsd-stable@FreeBSD.org>, Luigi Rizzo <rizzo@iet.unipi.it>, Andreas Nilsson <andrnils@gmail.com> Subject: Re: ipfw table add problem Message-ID: <1385045442.31172.549.camel@revolution.hippie.lan> In-Reply-To: <CAAcX-AHQvZDXJUKrVKnW4xhOxO4DE7uFUyMqBC2biVaDhq%2BcGg@mail.gmail.com> References: <CAAcX-AGDZbFn5RmhLBBn2PPWRPcsFUnea5MgTc7nuXGD8Ge53A@mail.gmail.com> <CAPS9%2BSv9Um47wzOkfEsA_S7sb-FbQ=aZE2qb7EkFgnzEsrOc%2BQ@mail.gmail.com> <CAAcX-AHqxnx73%2BP_h0ooK8CNZCM0%2BOo-TckLNHexqnP8bytCpA@mail.gmail.com> <CAPS9%2BSv=4J2g8rCbz-99VoQiN8=eNsDWJkNVW6E0g%2B2B-LPTEQ@mail.gmail.com> <CAAcX-AHQvZDXJUKrVKnW4xhOxO4DE7uFUyMqBC2biVaDhq%2BcGg@mail.gmail.com>
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On Tue, 2013-11-19 at 23:26 +0200, =D6zkan KIRIK wrote: > On Tue, Nov 19, 2013 at 11:21 PM, Andreas Nilsson <andrnils@gmail.com>w= rote: >=20 > > > > > > > > On Tue, Nov 19, 2013 at 9:36 PM, =D6zkan KIRIK <ozkan.kirik@gmail.com= >wrote: > > > >> Hi, > >> > >> > >> > >> On Tue, Nov 19, 2013 at 10:22 PM, Andreas Nilsson <andrnils@gmail.co= m>wrote: > >> > >>> > >>> > >>> > >>> On Tue, Nov 19, 2013 at 8:55 PM, =D6zkan KIRIK <ozkan.kirik@gmail.c= om>wrote: > >>> > >>>> Hi, > >>>> > >>>> I'm using kernel FreeBSD 10.0-BETA3 #2 r257635 kernel. > >>>> I am trying to add port number to ipfw tables. But there is someth= ing > >>>> strange : > >>>> Problem is easily repeatable. > >>>> > >>>> #ipfw table 1 flush > >>>> #ipfw table 1 add 4899 > >>>> #ipfw table 1 list > >>>> ::/0 0 > >>>> > >>> Works with ipfw table 1 add 0 4899 > >>> > >> No, i want to use this table as port list ( to use with "lookup src-= port > >> 1" ) . If you add like this, you cannot match against ports. Am I wr= ong? > >> > > No, that should be possible. > > > >> > >> > >>> > >>>> #ipfw table 1 flush > >>>> #ipfw table 1 add 10.2.3.01 ( not 10.0.0.1, the last 1 has= 0 as > >>>> prefix ) > >>>> #ipfw table 1 list > >>>> ::/0 0 > >>>> > >>> Did you mean ipfw table 1 add 10.2.3.0 1 ? That works for me. > >>> > >> Please dont leave spaces between 0 and 1. > >> > > Ok. any specific reason to type it as 10.2.3.01 instead 0f 10.2.3.1 ? > > > There is no specific reason, but both 10.2.3.01 and 10.2.3.1 are has tr= ue > syntax. > The problem is, ipfw doesnt throw any errors, but record added as > 0.0.0.0/0( all the IPv4 network ). This behaviour is really dangerous. >=20 > FreeBSD 8.2 and 8.4 doesnt have this problem. For this, I wonder if ipfw was recently changed from using inet_aton() to inet_pton() to parse addresses? Our implementation of inet_pton() does not match the manpage -- it's supposed to accept decimal, octal, or hex numbers for each of the dotted IP comonents, but it accepts decimal only. 10.2.3.01 appears to cause it to return 0 as the address. Our inet_aton() handles oct/dec/hex. -- Ian
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