From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 9912 invoked from network); 25 Oct 2021 16:51:22 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 25 Oct 2021 16:51:22 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 579BB9D0C1; Tue, 26 Oct 2021 02:51:19 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 1764E9CCA2; Tue, 26 Oct 2021 02:50:46 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=planet.nl header.i=@planet.nl header.b="ecDXHqPE"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 562949CCA2; Tue, 26 Oct 2021 02:50:42 +1000 (AEST) Received: from ewsoutbound.kpnmail.nl (ewsoutbound.kpnmail.nl [195.121.94.183]) by minnie.tuhs.org (Postfix) with ESMTPS id 43B839CBED for ; Tue, 26 Oct 2021 02:50:34 +1000 (AEST) X-KPN-MessageId: 75d6209f-35b3-11ec-a02e-005056992ed3 Received: from smtp.kpnmail.nl (unknown [10.31.155.5]) by ewsoutbound.so.kpn.org (Halon) with ESMTPS id 75d6209f-35b3-11ec-a02e-005056992ed3; Mon, 25 Oct 2021 18:49:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=planet.nl; s=planet01; h=to:date:message-id:subject:mime-version:content-type:from; bh=HaGmC/8UodD8UZEp5M9KvWMLisPfPF9BorYxCpZDGo8=; b=ecDXHqPEP6KpecO7uXKyI8yw5Rp+VCZ1raWg0Z6pi6Flt4qN+Yi6u837elE2/DDCYDsqNrz14H+xw cIzZ0vGCHo1VKDEE5xDhGhlLYjqPQL+cOJEiir4EF+FJPTnqNZ+bWmQbXFWf6m6bHW4IcLvmV57cho ZIRyQcwGI0K7+HcQ= X-KPN-MID: 33|9s7AMm4sijgeICf2aaWVGp/n/Nplbra8ptxuZzztDiGudLxwVAiEQpGPzB9SLKW EuW3GXkKIxjoXX2eNhg0awiVBfsb30tyGmjVs3zBqv/g= X-KPN-VerifiedSender: Yes X-CMASSUN: 33|sMTwU5u88hk3rDYmEUxbOuUuH+yeUyRyfpv+aAXV2sZTwi8iM2lZNN9EwygIAfs GVbRBWLWIPGC3aAbr99vCpw== X-Originating-IP: 80.101.112.122 Received: from mba2.fritz.box (sqlite.xs4all.nl [80.101.112.122]) by smtp.kpnmail.nl (Halon) with ESMTPSA id a7506ea6-35b3-11ec-8d65-00505699b758; Mon, 25 Oct 2021 18:50:26 +0200 (CEST) From: Paul Ruizendaal Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) Message-Id: <773CD17C-9ACC-461E-BDE3-DBB5AB00E20F@planet.nl> Date: Mon, 25 Oct 2021 18:50:26 +0200 To: TUHS main list , Lars Brinkhoff X-Mailer: Apple Mail (2.3608.120.23.2.4) Subject: Re: [TUHS] Unix NCP protocol stack for ARPANET X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > I have searched the TUHS archive and elsewhere, but all I > find for Unix is a copy of the PDP-11 Unix V6 NCP from Illinois. >=20 > Has any other NCP implementation for Unix survived? =46rom old host > tables I think there may have been some VAXen online before the switch > to TCP/IP. Lars, You may want to look at the 4 surviving BBN tapes on Kirk McKusick=E2=80=99= s DVD software collection. A small part of that is on the TUHS Unix tree = page - see the 4.1BSD entry. 1. A history of NCP on the VAX at BBN can be found in the change log: https://www.tuhs.org/cgi-bin/utree.pl?file=3DBBN-Vax-TCP/history In short they started with 32V in the Fall of 1979, and ported UIUC=E2=80=99= s NCP code to it in May 1980. They then moved to 4.1BSD in August and = ported yet again. It would seem that the ports were fairly = straightforward. Coding for TCP begins in January 1981. 2. Note that the BBN TCP worked over NCP as its primary transport. The = driver is still there if you look through the surviving BBN tapes. Part = of that code is on TUHS: https://www.tuhs.org/cgi-bin/utree.pl?file=3DBBN-Vax-TCP/dev/acc.c = https://www.tuhs.org/cgi-bin/utree.pl?file=3DBBN-Vax-TCP/bbnnet-oct82/imp_= io.c It will take some effort, but probably the NCP VAX code can be = reconstructed from the surviving PDP11 UIUC code and these BBN tapes = (the file names in the change log match). 3. The BBN tapes also have some user level software: telnet, ftp, mtp. = This code consists of straight NCP to TCP conversions and the source = code has #ifdef=E2=80=99s for NCP and TCP. An example is here: = https://www.tuhs.org/cgi-bin/utree.pl?file=3DBBN-Vax-TCP/src/telnet/netser= .c Hope this helps. Paul PS - Info on the DVD is here (bottom of the page): https://www.mckusick.com/csrg/