From owner-freebsd-hackers@FreeBSD.ORG Thu Feb 23 16:41:02 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AB40F16A420 for ; Thu, 23 Feb 2006 16:41:02 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net [66.23.211.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8EEC143D6D for ; Thu, 23 Feb 2006 16:40:54 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from localhost (john@localhost [127.0.0.1]) by server.baldwin.cx (8.13.4/8.13.4) with ESMTP id k1NGeq9E052539; Thu, 23 Feb 2006 11:40:52 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-hackers@freebsd.org Date: Thu, 23 Feb 2006 11:33:33 -0500 User-Agent: KMail/1.9.1 References: <200602221550.17842.nvass@teledomenet.gr> <20060223050659.GA89118@svzserv.kemerovo.su> <200602230956.47263.nvass@teledomenet.gr> In-Reply-To: <200602230956.47263.nvass@teledomenet.gr> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200602231133.35747.jhb@freebsd.org> X-Virus-Scanned: ClamAV 0.87.1/1299/Thu Feb 23 06:19:52 2006 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-1.4 required=4.2 tests=ALL_TRUSTED autolearn=ham version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on server.baldwin.cx Cc: Eugene Grosbein , Nikos Vassiliadis Subject: Re: (feature change request) remove link-layer generated routes from netstat -r 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: Thu, 23 Feb 2006 16:41:02 -0000 On Thursday 23 February 2006 02:56, Nikos Vassiliadis wrote: > On Thursday 23 February 2006 07:06, Eugene Grosbein wrote: > > On Wed, Feb 22, 2006 at 03:50:17PM +0200, Nikos Vassiliadis wrote: > > > netstat -r prints link-layer generated routes and many > > > times the output becomes somehow obscure. For > > > example: > > > > > > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat > > > -ranfinet Routing tables > > > > > > Internet: > > > Destination Gateway Flags Refs Use Netif > > > Expire default 10.1.1.244 UGS 0 31016 > > > rl0 10.1.1/24 link#1 UC 0 0 rl0 > > > 10.1.1.181 00:0f:1f:fb:02:f5 UHLW 1 0 rl0 > > > 10.1.1.182 00:e0:fc:38:d4:40 UHLW 1 0 rl0 > > > 10.1.1.183 00:e0:fc:65:07:fd UHLW 1 0 rl0 > > > 10.1.1.244 00:50:fc:fe:74:3b UHLW 2 1 rl0 > > > 10.1.1.254 00:0c:cf:70:50:06 UHLW 1 0 rl0 > > > 127.0.0.1 127.0.0.1 UH 0 1117 lo0 > > > 192.168.1 link#5 UC 0 0 fxp0 > > > 192.168.1.25 00:05:5d:4d:19:58 UHLW 1 0 fxp0 > > > 192.168.1.45 00:11:43:b6:a1:55 UHLW 1 0 fxp0 > > > 192.168.1.71 00:0c:f1:b9:38:50 UHLW 1 1645 fxp0 > > > 192.168.1.84 00:04:23:af:79:66 UHLW 1 0 fxp0 > > > 192.168.1.112 00:30:4f:21:3b:8a UHLW 1 0 fxp0 > > > 192.168.1.196 00:07:e9:40:1f:c5 UHLW 1 0 fxp0 > > > 192.168.1.199 00:e0:81:21:28:21 UHLW 1 0 fxp0 > > > 192.168.1.200 00:30:4f:03:88:03 UHLW 1 0 fxp0 > > > > > > > > > when the information I was actually looking for is: > > > > > > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat -rnfinet > > > Routing tables > > > > > > Internet: > > > Destination Gateway Flags Refs Use Netif > > > Expire default 10.1.1.244 UGS 0 31016 > > > rl0 10.1.1/24 link#1 UC 0 0 rl0 > > > 127.0.0.1 127.0.0.1 UH 0 1117 lo0 > > > 192.168.1 link#5 UC 0 0 fxp0 > > > root@brad:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# > > > > > > > > > The attachment patch ("cvs diff -u -rHEAD route.c" generated) prints > > > link-layer generated routes when -a is specified and ignores them > > > the rest of the time. > > > > > > Thoughts? POLA violation? > > > > Just use: > > > > netstat -rn | awk '$3 !~ /L/ { print }' > > That's exactly the point Eugene, I don't want to find ways to filter it out. > It happens frequently. I didn't say it's difficult to remove it, I just don't > want it there all the time. That's why you can use -a to get the old > behavior. Using simple pipelines with awk and sed, etc. is the UN*X way though. Instead of building all-singing all-dancing programs you build simpler utilities that you "glue" together to build more complex behavior. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org