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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A9C3C433E0 for ; Fri, 22 Jan 2021 04:15:40 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9A6DC22D57 for ; Fri, 22 Jan 2021 04:15:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A6DC22D57 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=namei.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=containers-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 4E82A8629B; Fri, 22 Jan 2021 04:15:39 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YNW0tZvfmVKg; Fri, 22 Jan 2021 04:15:37 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id CF49186250; Fri, 22 Jan 2021 04:15:37 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B447EC08A1; Fri, 22 Jan 2021 04:15:37 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3C2DAC013A for ; Fri, 22 Jan 2021 04:15:36 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 312ED22708 for ; Fri, 22 Jan 2021 04:15:36 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id leiPrVeV56xg for ; Fri, 22 Jan 2021 04:15:35 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.namei.org (namei.org [65.99.196.166]) by silver.osuosl.org (Postfix) with ESMTPS id 6E39921537 for ; Fri, 22 Jan 2021 04:15:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.namei.org (Postfix) with ESMTPS id E799DC92; Fri, 22 Jan 2021 04:14:42 +0000 (UTC) Date: Fri, 22 Jan 2021 15:14:42 +1100 (AEDT) From: James Morris To: Christian Brauner Subject: Re: [PATCH v6 17/40] af_unix: handle idmapped mounts In-Reply-To: <20210121131959.646623-18-christian.brauner@ubuntu.com> Message-ID: <3e79875e-a32b-2974-b922-a2ed116305b@namei.org> References: <20210121131959.646623-1-christian.brauner@ubuntu.com> <20210121131959.646623-18-christian.brauner@ubuntu.com> MIME-Version: 1.0 Cc: Lennart Poettering , Mimi Zohar , James Bottomley , Andreas Dilger , containers@lists.linux-foundation.org, Christoph Hellwig , Tycho Andersen , Paul Moore , Jonathan Corbet , smbarber@chromium.org, Alban Crequy , linux-ext4@vger.kernel.org, Mrunal Patel , Kees Cook , Arnd Bergmann , selinux@vger.kernel.org, Josh Triplett , Seth Forshee , Aleksa Sarai , Alexander Viro , Andy Lutomirski , OGAWA Hirofumi , Geoffrey Thomas , David Howells , John Johansen , Theodore Tso , Dmitry Kasatkin , Stephen Smalley , linux-xfs@vger.kernel.org, linux-security-module@vger.kernel.org, "Eric W. Biederman" , linux-api@vger.kernel.org, Casey Schaufler , linux-fsdevel@vger.kernel.org, linux-integrity@vger.kernel.org, Linus Torvalds , Todd Kjos X-BeenThere: containers@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux Containers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: containers-bounces@lists.linux-foundation.org Sender: "Containers" On Thu, 21 Jan 2021, Christian Brauner wrote: > When binding a non-abstract AF_UNIX socket it will gain a representation > in the filesystem. Enable the socket infrastructure to handle idmapped > mounts by passing down the user namespace of the mount the socket will > be created from. If the initial user namespace is passed nothing changes > so non-idmapped mounts will see identical behavior as before. > > Link: https://lore.kernel.org/r/20210112220124.837960-25-christian.brauner@ubuntu.com > Cc: Christoph Hellwig > Cc: David Howells > Cc: Al Viro > Cc: linux-fsdevel@vger.kernel.org > Reviewed-by: Christoph Hellwig > Signed-off-by: Christian Brauner Reviewed-by: James Morris -- James Morris _______________________________________________ Containers mailing list Containers@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/containers