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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 190FBC433E0 for ; Tue, 16 Feb 2021 23:38:26 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 A45AD64E76 for ; Tue, 16 Feb 2021 23:38:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A45AD64E76 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57606 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lC9vE-0004dV-OS for qemu-devel@archiver.kernel.org; Tue, 16 Feb 2021 18:38:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50068) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lC9tZ-0002z8-M0 for qemu-devel@nongnu.org; Tue, 16 Feb 2021 18:36:41 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:20243) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lC9tW-0002FO-A8 for qemu-devel@nongnu.org; Tue, 16 Feb 2021 18:36:41 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613518596; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/Ihq4SluZlC1pMrko4dIOM4hEbaIVETduTQQY4CEd3w=; b=CF1RIc/toYbyjba4rTdRyRHGtyKNfP3C0e6/lAC/DNRnQf220t2Et35mBLgD3ZhzSeTg2K RSYtUJ1ZQ69wzcQ9yEayj2BboUKwvrLylgvjMfWYofUE/sTz69G04eRwKdTlhj5uwzPK65 B4oWEyutBhX4PKknNvzpZrZOv4Bbzbg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-35-CoYtU7-tO6ea4pangcuLlQ-1; Tue, 16 Feb 2021 18:36:32 -0500 X-MC-Unique: CoYtU7-tO6ea4pangcuLlQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D22E8192CC41; Tue, 16 Feb 2021 23:36:31 +0000 (UTC) Received: from horse.redhat.com (ovpn-114-123.rdu2.redhat.com [10.10.114.123]) by smtp.corp.redhat.com (Postfix) with ESMTP id D9FB21975F; Tue, 16 Feb 2021 23:36:25 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 341A6223D98; Tue, 16 Feb 2021 18:36:25 -0500 (EST) From: Vivek Goyal To: qemu-devel@nongnu.org, virtio-fs@redhat.com Subject: [PATCH 1/3] virtiofsd: Add an option to enable/disable posix acls Date: Tue, 16 Feb 2021 18:36:09 -0500 Message-Id: <20210216233611.33400-2-vgoyal@redhat.com> In-Reply-To: <20210216233611.33400-1-vgoyal@redhat.com> References: <20210216233611.33400-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vgoyal@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=216.205.24.124; envelope-from=vgoyal@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, vgoyal@redhat.com, lhenriques@suse.de Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" fuse has an option FUSE_POSIX_ACL which needs to be opted in by fuse server to enable posix acls. Add virtiofsd option "-o posix_acl/no_posix_acl" to let users enable/disable posix acl support. By default it is disabled as of now. Signed-off-by: Vivek Goyal --- tools/virtiofsd/passthrough_ll.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index 147b59338a..34b2848e61 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -168,6 +168,7 @@ struct lo_data { /* An O_PATH file descriptor to /proc/self/fd/ */ int proc_self_fd; + int user_posix_acl; }; static const struct fuse_opt lo_opts[] = { @@ -198,6 +199,8 @@ static const struct fuse_opt lo_opts[] = { { "allow_direct_io", offsetof(struct lo_data, allow_direct_io), 1 }, { "no_allow_direct_io", offsetof(struct lo_data, allow_direct_io), 0 }, { "announce_submounts", offsetof(struct lo_data, announce_submounts), 1 }, + { "posix_acl", offsetof(struct lo_data, user_posix_acl), 1 }, + { "no_posix_acl", offsetof(struct lo_data, user_posix_acl), 0 }, FUSE_OPT_END }; static bool use_syslog = false; @@ -630,6 +633,23 @@ static void lo_init(void *userdata, struct fuse_conn_info *conn) "does not support it\n"); lo->announce_submounts = false; } + + if (lo->user_posix_acl == 1) { + /* + * User explicitly asked for this option. Enable it unconditionally. + * If connection does not have this capability, it should fail + * in fuse_lowlevel.c + */ + fuse_log(FUSE_LOG_DEBUG, "lo_init: enabling posix acl\n"); + conn->want |= FUSE_CAP_POSIX_ACL; + } else { + /* + * Either user specified to disable posix_acl, or did not specify + * anything. In both the cases do not enable posix acl. + */ + fuse_log(FUSE_LOG_DEBUG, "lo_init: disabling posix_acl\n"); + conn->want &= ~FUSE_CAP_POSIX_ACL; + } } static void lo_getattr(fuse_req_t req, fuse_ino_t ino, @@ -3533,6 +3553,7 @@ int main(int argc, char *argv[]) .posix_lock = 0, .allow_direct_io = 0, .proc_self_fd = -1, + .user_posix_acl = -1, }; struct lo_map_elem *root_elem; struct lo_map_elem *reserve_elem; -- 2.25.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Date: Tue, 16 Feb 2021 18:36:09 -0500 Message-Id: <20210216233611.33400-2-vgoyal@redhat.com> In-Reply-To: <20210216233611.33400-1-vgoyal@redhat.com> References: <20210216233611.33400-1-vgoyal@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Virtio-fs] [PATCH 1/3] virtiofsd: Add an option to enable/disable posix acls List-Id: Development discussions about virtio-fs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, virtio-fs@redhat.com Cc: miklos@szeredi.hu, vgoyal@redhat.com fuse has an option FUSE_POSIX_ACL which needs to be opted in by fuse server to enable posix acls. Add virtiofsd option "-o posix_acl/no_posix_acl" to let users enable/disable posix acl support. By default it is disabled as of now. Signed-off-by: Vivek Goyal --- tools/virtiofsd/passthrough_ll.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index 147b59338a..34b2848e61 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -168,6 +168,7 @@ struct lo_data { /* An O_PATH file descriptor to /proc/self/fd/ */ int proc_self_fd; + int user_posix_acl; }; static const struct fuse_opt lo_opts[] = { @@ -198,6 +199,8 @@ static const struct fuse_opt lo_opts[] = { { "allow_direct_io", offsetof(struct lo_data, allow_direct_io), 1 }, { "no_allow_direct_io", offsetof(struct lo_data, allow_direct_io), 0 }, { "announce_submounts", offsetof(struct lo_data, announce_submounts), 1 }, + { "posix_acl", offsetof(struct lo_data, user_posix_acl), 1 }, + { "no_posix_acl", offsetof(struct lo_data, user_posix_acl), 0 }, FUSE_OPT_END }; static bool use_syslog = false; @@ -630,6 +633,23 @@ static void lo_init(void *userdata, struct fuse_conn_info *conn) "does not support it\n"); lo->announce_submounts = false; } + + if (lo->user_posix_acl == 1) { + /* + * User explicitly asked for this option. Enable it unconditionally. + * If connection does not have this capability, it should fail + * in fuse_lowlevel.c + */ + fuse_log(FUSE_LOG_DEBUG, "lo_init: enabling posix acl\n"); + conn->want |= FUSE_CAP_POSIX_ACL; + } else { + /* + * Either user specified to disable posix_acl, or did not specify + * anything. In both the cases do not enable posix acl. + */ + fuse_log(FUSE_LOG_DEBUG, "lo_init: disabling posix_acl\n"); + conn->want &= ~FUSE_CAP_POSIX_ACL; + } } static void lo_getattr(fuse_req_t req, fuse_ino_t ino, @@ -3533,6 +3553,7 @@ int main(int argc, char *argv[]) .posix_lock = 0, .allow_direct_io = 0, .proc_self_fd = -1, + .user_posix_acl = -1, }; struct lo_map_elem *root_elem; struct lo_map_elem *reserve_elem; -- 2.25.4