From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2A526C0015E for ; Fri, 14 Jul 2023 10:27:41 +0000 (UTC) Received: by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTP id fbefbf08; Fri, 14 Jul 2023 10:27:08 +0000 (UTC) Received: from outbound11.mail.transip.nl (outbound11.mail.transip.nl [136.144.136.18]) by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 44b126c4 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) for ; Fri, 14 Jul 2023 10:27:06 +0000 (UTC) Received: from submission8.mail.transip.nl (unknown [10.103.8.159]) by outbound11.mail.transip.nl (Postfix) with ESMTP id 4R2SMY52g7zkQNm6 for ; Fri, 14 Jul 2023 12:27:05 +0200 (CEST) Received: from mx1.de-vri.es (voyager.de-vri.es [149.210.162.205]) by submission8.mail.transip.nl (Postfix) with ESMTPSA id 4R2SMY05j2z2ZNkN for ; Fri, 14 Jul 2023 12:27:05 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=de-vri.es; s=voyager; t=1689330424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/EXWP6N3cG0okIY6NG1Kj3+lG38TUPHuHb58AmzjI0k=; b=oqRuEURdCJCH4zLSUx9Myd9psAYxffO4R91rzELkiXHI+3h9EeE6+7ZdzE4cmupOutbOUq H+ctMi3T6HocMvsCZbVlzY+3dUXE2mR2Lq1a3jOH5vb3lznsWzhiiX+bPwSjMN958qzUzn +936mmLqTBV/Aq1GSalLcytyHZazs9K3qEe+3i4pogposXRvmV9awXmOS+bLIMAdFQ1Hc/ eAGmJFfaRRqK5mtFIrngvoRJ8kgUKV2aFXs4KRWmZ5oijlg0b1GHowgelSp8egAZSHlrhK N7Kdax7baNDx+MFv28/Y3eseKUj30qtLBmL9TPIdQ7RkzO4z16eIPesVWDv6+oTwWZUSQG RspWs6KcOLWGtwXRIY6H/eZcab9A8LGJrDOVquwRHyjXmoG5/55nc7vaLBnlZUyCvBYy37 aB9XEqC/Rymb0bZVAX4iSczAKa8Do3ttoSa1kSGwnDHMRlw3iOtP+DX73p2YXZrR1PHADi m6ZCTCvx6YNClsRW0zTu0apWRc7pZzyDKC7ZvrAj//ilMEXI0Li/nZgD+hc3m9mNyVd90R krYlSKdl1zqUBkLV2/nC3zJ1aKk2OfgMhIHtMeYbZ/gJ3lGX+u4VZaIclNND7DKbeP/dkZ JoBEN0xxYzhKxRRkX3ENaeOIgVRuXzeYrKP6KNMCdPqbUSJGdmHms= Received: by voyager.de-vri.es (OpenSMTPD) with ESMTPSA id 3185295b (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) for ; Fri, 14 Jul 2023 10:27:04 +0000 (UTC) Message-ID: Date: Fri, 14 Jul 2023 12:27:01 +0200 MIME-Version: 1.0 Subject: Re: ip netns del zaps wg link To: wireguard@lists.zx2c4.com References: <4fd6c9cb-c2cf-7a16-ee62-d958790652ea@gmail.com> Content-Language: en-US From: Maarten de Vries In-Reply-To: <4fd6c9cb-c2cf-7a16-ee62-d958790652ea@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Scanned-By: ClueGetter at submission8.mail.transip.nl DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=transip-a; d=de-vri.es; t=1689330425; h=from:subject:to:references: in-reply-to:date:mime-version:content-type; bh=/EXWP6N3cG0okIY6NG1Kj3+lG38TUPHuHb58AmzjI0k=; b=GMdnvsAF1l191NNdAKuSX8Bzyp388CbTqaCGKlkFjQZssstUOx1i8XWuTz25fw5237Sr6w aZoD6uXWZFXUqTPT5XhAXnp3V3E8A5/gtdeL5rcT19yByI3gPYdjNznc9Ou3D/JcakZ+oR aATfjRFfBNQNbRa54hd5Uhihp9T31JWjL+b/bta8o93+oHch4p2GnuPPilenPaG7z9OJ+G XVsfAKUAUua0QANnbzLiujSjp9DUOH4xiph99S+tpCDckwFumpeW8JPVWcLK2WypROx/Dg JSn9iTZid6vWi13Qq3gnvAjUOFG89R0DB65vpwWSb1t7rlAIz4V30pnQghYaVQ== X-Report-Abuse-To: abuse@transip.nl X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" On 18/05/2023 01:13, Harry G Coin wrote: > First, Hi and thanks for all the effort! > > At least on Ubuntu latest LTS:  As advertised, if a wireguard link > gets created by systemd/networkd, then set into a different net > namespace, all works well. > > However, if that namespace is deleted, the link appears to be 'gone > forever'.  Other link types reappear in the primary namespace when the > namespace they are in gets deleted.   I'm not sure whether the link > retains its 'up' or 'down' state when the namespace it's in gets > deleted and reset to primary.  Not a big deal, doesn't happen often. > > This is 100% repeatable.   Some other answer than 'inaccessible until > the next reboot' would be nice. > > Hi, This behavior is exactly what I would expect. I'm using namespaces to restrict access to a wireguard link. If the namespace gets destroyed, I absolutely do not want other programs to have access to the wireguard link. You can simply re-create the wireguard link to use it again. This may not be the most convenient for you, but your use case seems to be a bit unconventional: you are moving and deleting a resource created by systemd and/or networkd manually. You are mixing automatic and manual management, so there is a risk of breaking the automatic management. Alternatively, you could move the interface back before deleting the namespace. Kind regards, Maarten de Vries