From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1718 invoked by alias); 18 Nov 2015 17:32:23 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 1705 invoked by uid 89); 18 Nov 2015 17:32:22 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-5.4 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY autolearn=no version=3.3.2 X-HELO: calimero.vinschen.de Received: from aquarius.hirmke.de (HELO calimero.vinschen.de) (217.91.18.234) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 18 Nov 2015 17:32:21 +0000 Received: by calimero.vinschen.de (Postfix, from userid 500) id 23F4CA806A4; Wed, 18 Nov 2015 18:32:19 +0100 (CET) Date: Wed, 18 Nov 2015 17:32:00 -0000 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: ssh ControlMaster re-broken Message-ID: <20151118173219.GS6402@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <8ADFA0E0FC6B6F4A96E106C224E204F30EE3F631@SGSIMBX006.nsn-intra.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2xzXx3ruJf7hsAzo" Content-Disposition: inline In-Reply-To: <8ADFA0E0FC6B6F4A96E106C224E204F30EE3F631@SGSIMBX006.nsn-intra.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SW-Source: 2015-11/txt/msg00251.txt.bz2 --2xzXx3ruJf7hsAzo Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-length: 2167 On Nov 17 12:46, Zhu, Binbin (Nokia - CN/Hangzhou) wrote: > Hi, >=20 > It worked month ago, but it failed after reinstall. >=20 > 1. Create shared session: ssh -vvv -nNf -o ControlMaster=3Dyes -o Control= Path=3D"$HOME/.ssh/ctl/%L-%r@%h:%p" remote-host > Output in accepting new connection:=20 > $ debug1: multiplexing control connection > debug3: fd 5 is O_NONBLOCK > debug3: fd 5 is O_NONBLOCK > debug1: channel 1: new [mux-control] > debug3: channel_post_mux_listener: new mux channel 1 fd 5 > debug3: mux_master_read_cb: channel 1: hello sent > debug3: mux_master_read_cb: channel 1 packet type 0x00000001 len 4 > debug2: process_mux_master_hello: channel 1 slave version 4 > debug3: mux_master_read_cb: channel 1 packet type 0x10000004 len 4 > debug2: process_mux_alive_check: channel 1: alive check > debug3: mux_master_read_cb: channel 1 packet type 0x10000002 len 41 > debug2: process_mux_new_session: channel 1: request tty 1, X 0, agent 0, = subsys 0, term "xterm", cmd "", env 0 > mm_receive_fd: no message header > process_mux_new_session: failed to receive fd 0 from slave ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ failed attempt at descriptor passing > 2. Client output: > $ ssh -vvv -o ControlPath=3D"$HOME/.ssh/ctl/%L-%r@%h:%p" remote-host > OpenSSH_7.1p1, OpenSSL 1.0.2d 9 Jul 2015 > debug2: fd 3 setting O_NONBLOCK > debug2: mux_client_hello_exchange: master version 4 > debug3: mux_client_forwards: request forwardings: 0 local, 0 remote > debug3: mux_client_request_session: entering > debug3: mux_client_request_alive: entering > debug3: mux_client_request_alive: done pid =3D 10144 > debug3: mux_client_request_session: session request sent > mux_client_request_session: read from master failed: Connection reset by = peer > debug2: ssh_connect: needpriv 0 >=20 > Could you help? Are you really sure it ever worked? To the best of my knowledge the control master stuff always required descriptor passing via AF_LOCAL sockets, which is not available under Cygwin. Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --2xzXx3ruJf7hsAzo Content-Type: application/pgp-signature Content-length: 819 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJWTLYjAAoJEPU2Bp2uRE+gd0EP/0VqO5HJPBt51m9KGdStYhSZ 00qSH5QGJXriIfYYZkvjFISx+hNgUu0+ySGpmDrGPDCz3iSfpjr9+/TggbQwPnwn viui50Po83g5egsiPQR9cfRer0vDuO458/Xy0tR2G8P+K/cfvVEVfrZ4nCyJPtZ0 pGDgyxLEPrTqRL1eBNpe4HLk8uHBmx0DpDDTPbfWsm/aiwWx9MjlDcTjHRt1d5N1 0mid2tFw+BVj1c1qdKkAifXDMaydi7B3BEe8puZfsJwFT3+E2DPn95+KSQqKjy9+ 6N4fV8+TFYnGYwvBiW8WvTjXeUYsvJke8X4+We5mK8XWC1ODB5xJ/NQGPTBv3AE+ 3zn7VvBqzfAUJZe3NCDKRqC/IYJRylafw8fxXmshXJNyGTtci1LWza5nJgx9WI7z 5wN66F8dobKAgxwhvronbDRvtmX/Mlt97/iMHBR1JecmDkNkcee7fTsdIhBMU7LY w/vFmmtnnSg2ns8glB84hWUd5QXy3PHqSnfgVgw5MBIIr4LsBygW8WnlQUbtzxrS YTJ7qVZpBNhJ+0fBXImAFu895EMZPbtv3PXeqLobTj4G2xZnh8s0m0kEUQ0VSZ6D 3SiXSGJy0C2nKujnBWLPjTqoIGr1EVZE98XA0KEM/Hd7V3KsWSCMgjnUEjX2Icto vr918obg9AOtd1ZwGuuN =DLJn -----END PGP SIGNATURE----- --2xzXx3ruJf7hsAzo--