Date: Fri, 4 Nov 2022 10:07:00 -0700 From: Max Baroi <max@baroi.com> To: Gleb Smirnoff <glebius@freebsd.org> Cc: current@freebsd.org Subject: Re: trpt(8) to be decomissioned Message-ID: <558fd211-3d92-240c-f33c-5377a1684444@baroi.com> In-Reply-To: <Y2VAdN%2BDC6jy%2BL4d@FreeBSD.org> References: <Y2SLfz19F6JoC6av@FreeBSD.org> <97286FA9-DD47-4EB2-BD7A-C2A8BC8B62B5@karels.net> <4e69d854-e872-4833-b836-f9caf5fe76f0@baroi.com> <Y2VAdN%2BDC6jy%2BL4d@FreeBSD.org>
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Gleb, Thank you for the response. I rescind my suggestion. -Max On 11/4/2022 9:40 AM, Gleb Smirnoff wrote: > Max, > > the reason I want to retire it is not that it consumes 40 Kb > in the repository. The reason is that knows kernel structures, > and fails to compile after changes to them. So the tool that > nobody uses requires special care when working on TCP. The > kernel headers disclose the structures for trpt (with some > protection with _WANT_TCPCB, though) and some software from > ports (not calling names!) would start use them too. Now a > kernel developer needs to care not only about trpt, but > about this software, too. > > On the kernel side there is also TCPDEBUG code that needs > to be kept compilable, while apparently nobody uses it. > > On Fri, Nov 04, 2022 at 07:19:19AM +0000, Max Baroi wrote: > M> I'm sorry if this is an inappropriate suggestion, but I think it would be neat if there was a place in the ports hierarchy for retired programs like trpt. Maybe a "historical" or "archival" directory for programs phased out of from base, especially ones that are almost four decades old. > M> > M> -Max > M> > M> Nov 3, 2022 11:04:07 PM Mike Karels <mike@karels.net>: > M> > M> > On 3 Nov 2022, at 22:48, Gleb Smirnoff wrote: > M> > > M> >> Hi, > M> >> > M> >> trpt(8) is utility to pull TCP debugging data from the kernel > M> >> in 4.2BSD. We still have it in the base, with corresponding > M> >> TCPDEBUG option in the kernel and SO_DEBUG socket option. > M> >> > M> >> At the same time we have much more powerful debugging facilities > M> >> for TCP, e.g. the Dtrace probing, the TCP black box logging and > M> >> siftr. These are the tools that modern developers use. > M> >> > M> >> Already touched this topic with rscheff@, tuexen@, rrs@ and jtl@. > M> >> None of them new what trpt(8) is :) Looks like a good justification > M> >> to me. > M> > > M> > I have used trpt, but not for many years. It was done before tcpdump > M> > as well. Its time has long since gone. > M> > > M> > Mike > M> >> -- > M> >> Gleb Smirnoff > M> > M> >help
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