From owner-freebsd-net@freebsd.org Mon May 4 13:49:30 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id E237A2D08B4 for ; Mon, 4 May 2020 13:49:30 +0000 (UTC) (envelope-from john@saltant.com) Received: from twaddle.saltant.net (twaddle.saltant.net [72.78.188.147]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49G43G0Kfpz4DhB; Mon, 4 May 2020 13:49:29 +0000 (UTC) (envelope-from john@saltant.com) Received: from dither.saltant.net (dither.saltant.net [IPv6:2001:470:8d6f:1001::3]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by twaddle.saltant.net (Postfix) with ESMTPSA id D3A8816D0; Mon, 4 May 2020 09:49:28 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=saltant.com; s=twaddle; t=1588600168; bh=BIwKskEDwxiTPLEWS8wzI32SP7d57DZbmhJpxBAYNJk=; h=Subject:From:To:References:Date:In-Reply-To; b=WQ+j5+YG5Nvxx4lsIvkkOq9VM8l5o/Gsmy9iHFMQpQfjGKhvlxPYn4jZrZKgqAwRq 44UEvRY9iOrTZMDteu8b5V0KTu+wYO4JsoDIXDtfrcnPfw7koa0vxUIPuUqxrckyqV izlrA2P9eV4uH9TRfk9CG9WGUD0JzxdtaTMjvS75gUjmHf343WoqyzkjCjyH2GQzFx GLBYqgHjFDZYsMfMbiY7lRenRKtmnpB/89s88385diRHcBdhgYedQAENMMIiWDdMlm DKjiQV92noofh5XDK8QSd2ua9f1WL2XwIxq4gmEQ9TlEVWhiXUFxyXUe7d0WJ7rMFY cku12uREedh7Q== Subject: Re: RUNNING flag remains unset upon reinserting a gre into VNET jail From: "John W. O'Brien" To: FreeBSD Net , "Andrey V. Elsukov" References: Autocrypt: addr=john@saltant.com; prefer-encrypt=mutual; keydata= mQINBFpcMG0BEACeAEQ0ZTUEH+6B8XIBid2H8g1yY+niHxVphqz8JwnQtYX+bS+Kl3vr783F HH81DEbfPtYgHY53NF9FjSzCyj13lXVnEGQOdxXzZVKsN1nyuXCN2hDOFH7Yc5yQ8h85T4Hv sqPIGIXOztu4MX14iUAcTgLhfibNQBeKDeNI+BBeaE9lPuNVeiM+xsI4JYcjmDbjFzAHRpBo ull0koUFh6RZAKE7u17yLej1pTIQQVjQpWdK37BAq4hdkLwjGDY8mDGo3ZwGdNibxIAxv/wi KU6u2DfUg8+kLHIhOqk/+kFQ/uK5YA1azsyD5eIbNAs4W7LglA6SkiGBglTwkP0VCrkPdD14 6sx3U7uFgexDWbVuhLIkcPQ0SRmnjgUKHgk7px/jMvAPKSKoL0JQNdP/+pnO9CDLGmoHx9gE 5kVr5dQK8c/WauEfimAdE9qLuN6vb0Iei73q3e3OOHAUusR5wC5SwXt4iilbaK4r04NKXyfb SB3+qWST07F9cmMscfEStSBhpez3awB+1jz8gr40tkEGsFZGvD2KKAgZdKpoxv6IrZepclWz HpqHF01SRFORYMsd1d83XlEu/S1/Z9YJ87RoCdZuYCkjnoRPtpTi9d+JD/u3ZiQFwLUz/Ne3 VqiGKvY66EGcO3tvANMg6GWD9sqlnBDp9Lls0ChEY3dgDYd6DQARAQABtCJKb2huIFcuIE8n QnJpZW4gPGpvaG5Ac2FsdGFudC5jb20+iQJUBBMBCAA+AhsDBQsJCAcCBhUKCQgLAgQWAgMB Ah4BAheAFiEENPkbBr3zmPAVSH2HM8TWS4ldvzsFAlpcMTMFCQX2qcYACgkQM8TWS4ldvztT xQ//eHb1mgd40Z0fN2GnJti6/9uJ771IO6slFQ02GZcXZI+FIQo8Yd1dHe0e0Codu78qvJNr ggUtqdxH6SVp7K1AWHeLH5S0PF6iG5B+YUux080wEv/Mr8PPMgAD8gS3wiPDDgB/kUXO52bn DC3Fc0dUrFE/JAOByVEEDL5nLF6SQNpAtIUnaAIIuhKxi0d40LMcLUwuJ6jExynw8Iu7OVtu Y1PRAH5ESt6wYZq8ro8ukh4rMOxiWtT1yNEgHgnq3N4jKErVo87YJijHSSj80IKxUiKb/T6K tGTEBTKiSUV3OFj0ZoPxcbUmhIg2sBCNHaUCiI0KabqN1NyK2glKtcK6NpWy3JIHvtr3+VL1 /tvQTwlVUIacmsuxkGzm5vJPs/i2RtwsJXEXPmIRNgJ1EwZgpg5VqqEUDlmSyRLb48QcDrdv utKLA1MKLib1fD+0XmxZTbCMlFMlvJjAoBlVq60mvB/Jnv1TTnZ2eN6DKMWoxHKmPICh5F1q esmT/aJRIUoCiAgcChi4Ol4XmW3dM7ypjKCGHzyr6emCky5pjqSQZyFzg0RN5UjUQBISAGmJ E8hCFZIy7tf8meqIDbtkONh+JShN6u3t02JrnzSOQjZCh5WQW9Pnu7unJlIsYB10aZ6rvuAK YjghT8QLG8QVgJj/U9oeVG1Ag60fmLZdOFjRGmm5AQ0EXiI+pwEIAN/gCLz555dMl/I+kul4 ptLPm5oe0Yxp6pMI81+p8qJY6HoDlkHN/eB88FvaX1eQR6tTJu9kEHc0nnqjtj7M9kMm6ujb hXjTDY+EFck9V5XDV9eaHUvsDujq/srxHtpFtsWZRUiseTrtcKBt5yfrDlIvNPW/F1rtuHuH 7gIvB8rgBWwyO0v8/ZPfCDwV6zqCZ6TWT9hGzvODdSZN6gQipIrLvz2RFhtJ4+a8QCCBJpzl nWKKZmfmTiPElDM/POIwyO4pn2Hr0aSV4q1wShtwYhPpF3BvwTB59BqmyoW82oYk6ymokooU h1gsCs6D9hzX/jFCkbX0ywwW2jDEjYj04fMAEQEAAYkDcgQYAQoAJhYhBDT5Gwa985jwFUh9 hzPE1kuJXb87BQJeIj6nAhsCBQkFo5qAAUAJEDPE1kuJXb87wHQgBBkBCgAdFiEEUgT925O8 rsvNs2oHIjgwc/pAJtYFAl4iPqcACgkQIjgwc/pAJtYjKggAndvnwqRinsemX5KhK9MOdgNM SqhWHqNuuh3YaL7NK1lwMCubXgBag4LcOXZQ2m09bgtoXcbPh5g+ZPeqPGF28vaw6mU79dzU 2xkVC+456lBlU5VvmSNGXCGEVoRuMSQ4sT/GVvq2CJd4wUXxyaeqoqDXQGU1rspKsRroA0tJ RrCJOO1fs0hC7Ft4xx3nOwuxpE2Hp94g1zFA/MQs6SXjRiKJ7hOAPLIDIc79ZbPTc1YFxThd L1G27lq2ZtIuYuxiqdrhfTTe5cKFkm84FKSz+lhBNb3JiVb0ulnR2Bfi0lOxJ91b3dMLtuiu Du7wqHZax5FVQVJFIQpVvSJ+FZSnn91hD/91TeM+aR0zFq0BnkDBkt5X/tMuRm0IzkOLxjY4 Bi4y7e2N4CX1XklPybVW3QieiBRlfN2D7OhhHeXZk9rXzpCN/CC0aq4C/hfzLdOCcz7KaAFP dWZCH7xKPQUcIZyjHG7hx+M/5VKg86tiVln6gxEWNJp9+H+V2k04DH9b3UQ+aCXerbmIn7f8 dfHYOjPSXnmfso8rNSH8AOH5qrJp7VTTuxEYmt5yUc34GsVRUrj7wg/LHX3AMM5ZtAbHorYB lRZruleEzrJXbvb5/WbB4s8rHeA9IA7tXKNz83p7L8MaJ2LaJS/DeiwgrMpMUcbprgv9ejDw RO7P/jmvvRcnOADhfQBUmK1C+N6pzPX5gMUjYInH9T1JeIbh0kHrviAvHW8FYIcZSt3jKiM6 ZQNEuyv1wjpYULDfz/P1rHl1wq3RqYyO+o5rrIhyq4DDsNvvFAvifwFFoUv/eWOyhhd7zewv 0hVHcKIxHIPy7F+QSG1pOpedNEHKJBe7kxFuKA0/3r0I1fA0qJaISCtjRytv3mJVdE8SzVj1 J3B76AB+VChcr+VDLC4kQYtclMe50eoLCmwB1Y+c6QItIu6u8G9LNtTaTDorhtKHU+XM5/k6 wgmrC699KBxvM+oNbOfz3KDsZ4owIpBsBvMax8EW/ws78fnsHCi7tOdqrGl0xUG9+z7XI7kC DQReIj7QARAAyNbQ/m2GgioxKzPr73JEWHFMGUJbCka5lPtoO82qpb/NIRr6Ii+7e5TljOek hdueLNyiDJBxc9BK5v1BC/0aI+5TWrlB5oZGRZl1Qa3a8x9FH8Rya4fD0dfmQGarmu91vfgb MrBQrYGfwsZiS8MiT/ytJ1NzjHBXm1TMczZYYL7i5JSgqTNDqamBJODVa3lipKP9FY9XX/T3 cQEi7B1Om+8xgm87PtqsXr7fFyb2l84fnUv3g5Glznpfqk5Poshm5leJm/SVKkZZKfyo1P5+ BKi2zGAsLXgFbl6jiEnRIjyawpMuKaFclmBH8riuQGNK0wEeyqo9WlUY+WU3HUyE/fQ3h5Tk 80q+tT6wj7JQ8ywt4EAnIrJN/ik0H2ShthzAzWzAnZ5evQqXfhNIGD0LLJ1TglGyOYuqrSny g81lfjvhSLJqCCwILEBe1n3gITwTnpYMJu6DNk06xJJ9B4Oz8GLGTUWZcPafWAbzk5GZTf2N cSpxOqQV8/u2goMULyzXCzGrtB6YfDM/adZOAvpWad2qTgcpxpHALWY6T9aiKDIiURDJf04P 8X8xfzcc8ZFtGH+PwLDXMdeviMaPzfRTfvwn+LYuHY+liu0dlZa40SUx/9ugECSFcvPgTOEB SI/FoR2PwgcOauvY6AJ1HONsir8spMgcM5JgBqfIbcdsE4kAEQEAAYkCPAQYAQoAJhYhBDT5 Gwa985jwFUh9hzPE1kuJXb87BQJeIj7QAhsMBQkFo5qAAAoJEDPE1kuJXb87j9AP/0jvvPR0 8yAtQgzSb3A99LcsY3Zl+QGNZYkmdb0/C8feRMw9CUb6a/6liaj7CCKwadSULiVWSuMP3zT3 5Vit+2W/5GuO6C4fmOyeXquCi8qamhTG+orZYBw0dy3s1MhrfRwbQkDjWEoG2BbztPbCY5ZP VYGZU+sIwQhEyco+ddv+RL8o7gFDf58nNOgdi03Plsv2N+JpPaU6uoZy4hfzMY/PMhlWaO32 qM0HLyOuojB+RDPZ7oKQbwyavH6YHPcF/aix0DArvCh7nwW0CR/B5YgwD7FtTgE9ZcTof7am IR0ZVQ40kCyanLXp/qHiY9mR0g8Ggy9/rGA5fUsu1/ugyvJPBU/usmQfz3TcTNiuefVrh+Xh cuTc5dDP0d2MHfnKPxnj9F9+9sjJIgD1TbMDtbDhhCw3xkRnR3tbXM2hfDm2CyGKsCYIqDhb Isguy0R5IoW4gL2fHztgtFu3kvYbd45QUuopJhqK/fyRPaEhDx0FE2/jhYdFPJo90DmqL5Pm LJPsa12ActP1cArwAeXFLejxsjfTZeQ49Ww7GK2ZXnoEXFp5fmy2zoCUy12f9245Hvx8ea2y Z9nB+f1CWOPLRctjUqqBWXyQI1cErN9lhJIaCbDFGs61JOBzgFq2q+VnYtWmUJzOtGOGcEfX Nckeve7ALaUiFxGje9zepN2d/xKj Message-ID: Date: Mon, 4 May 2020 09:49:23 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ZGcOd6TpnCXAtCmyiz6HijxWIQBZSn5f9" X-Rspamd-Queue-Id: 49G43G0Kfpz4DhB X-Spamd-Bar: ------- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=saltant.com header.s=twaddle header.b=WQ+j5+YG; dmarc=none; spf=pass (mx1.freebsd.org: domain of john@saltant.com designates 72.78.188.147 as permitted sender) smtp.mailfrom=john@saltant.com X-Spamd-Result: default: False [-7.46 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[saltant.com:s=twaddle]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:72.78.188.144/29]; TO_MATCH_ENVRCPT_ALL(0.00)[]; HAS_ATTACHMENT(0.00)[]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; DMARC_NA(0.00)[saltant.com]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[saltant.com:+]; RCPT_COUNT_TWO(0.00)[2]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~]; IP_SCORE(-2.86)[ip: (-9.91), ipnet: 72.78.0.0/16(-4.91), asn: 701(0.58), country: US(-0.05)]; ASN(0.00)[asn:701, ipnet:72.78.0.0/16, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 May 2020 13:49:30 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --ZGcOd6TpnCXAtCmyiz6HijxWIQBZSn5f9 Content-Type: multipart/mixed; boundary="dIr5mD9pWvJrWnvfUtx9AenlYuN4fMta0" --dIr5mD9pWvJrWnvfUtx9AenlYuN4fMta0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020/05/03 20:12, John W. O'Brien wrote: > Hello Andrey and FreeBSD Net, >=20 > Today I stumbled upon what may be zero, one, or maybe two bugs. If it's= > one bug, then I think there might be a case the fine work in r339552 [0= ] > to keep the RUNNING flag consistent with whether or not the gre source > address exists does not accommodate. I'm still working on a minimal tes= t > case, so bear with me. >=20 > If I create gre0 on the host, then start a VNET jail which gets gre0 an= d > a physical interface (msk1, in my case) and inside which both are > configured, all is well inside the jail. Upon stopping the jail, the > "tunnel" setting is not removed from the gre (I'm not sure whether to > consider this a bug, too, or not), so when the dust settles back on the= > host, msk1 has no address, and the gre is not RUNNING, which is fine. > However, if I start the jail again, then the gre is not RUNNING inside > the jail even though msk1 again has the appropriate source address. >=20 > I worked around this by creating gre0 inside the jail where it is > destroyed upon jail stop. It would be nice if it either worked the othe= r > way, or failed with less astonishment. >=20 > Am I missing something that should be obvious? If this does seem like a= > bug, shall I submit something now or wait until I have a cleaner demo? >=20 > [0] https://svnweb.freebsd.org/changeset/base/339552 (thank you!) # create a jail, place an iface in it, then configure an address on it jail -c name=3Ddemo vnet persist ifconfig msk1 vnet demo jexec demo ifconfig msk1 10.1.1.1/24 # create a gre outside the jail, configure its tunnel endpoints ifconfig gre0 create tunnel 10.1.1.1 10.2.2.2 ifconfig gre0 # not RUNNING (OK) # place the gre into the jail, it should be running now ifconfig gre0 vnet demo jexec demo ifconfig gre0 # not RUNNING (not OK) # remove and re-apply the tunnel config jexec demo ifconfig gre0 -tunnel jexec demo ifconfig gre0 tunnel 10.1.1.1 10.2.2.2 jexec demo ifconfig gre0 # RUNNING (OK) --=20 John W. O'Brien OpenPGP keys: 0x33C4D64B895DBF3B --dIr5mD9pWvJrWnvfUtx9AenlYuN4fMta0-- --ZGcOd6TpnCXAtCmyiz6HijxWIQBZSn5f9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEUgT925O8rsvNs2oHIjgwc/pAJtYFAl6wHWMACgkQIjgwc/pA JtahMwf6AirZfAW8TWI0IOJtmHj6uN56oRfXXUPX4Iu1Yx2zvof70sH3yqFWmIIw AgUCmg2hZhU9tVe+tZ8E1i0tDXCRkfFWCNzXRkiKyz7XWN2HafSHloQQl5mpKaAk xKZbPANBKBmCOoemSc62OfZnmNOaKe8DCkF4PHCWBescWmajwIHElKz9JygYuCSK TAt6KL1mmxXB7dQPkFhCUQked5RfgWS+wJoqCS1coF+2vxILnhQDfErHM85hS3/0 3+5wKY2puCEWhYCh/0u1IrDyRvIdngZa7jKkLqaLngdSz0T+c13UuIuFtnEIFrQF aSmGrXBF7WhPWQt6m5N7n50nTUlRZA== =9BrN -----END PGP SIGNATURE----- --ZGcOd6TpnCXAtCmyiz6HijxWIQBZSn5f9--