From nobody Thu Sep 19 17:11:40 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.libvirt.org designates 8.43.85.245 as permitted sender) client-ip=8.43.85.245; envelope-from=devel-bounces@lists.libvirt.org; helo=lists.libvirt.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of lists.libvirt.org designates 8.43.85.245 as permitted sender) smtp.mailfrom=devel-bounces@lists.libvirt.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.libvirt.org (lists.libvirt.org [8.43.85.245]) by mx.zohomail.com with SMTPS id 1725030936930968.1000751190309; Fri, 30 Aug 2024 08:15:36 -0700 (PDT) Received: by lists.libvirt.org (Postfix, from userid 996) id DD5C313AB; Fri, 30 Aug 2024 11:15:35 -0400 (EDT) Received: from lists.libvirt.org (localhost [IPv6:::1]) by lists.libvirt.org (Postfix) with ESMTP id 628D41338; Fri, 30 Aug 2024 11:14:15 -0400 (EDT) Received: by lists.libvirt.org (Postfix, from userid 996) id 12D8C1325; Fri, 30 Aug 2024 11:14:11 -0400 (EDT) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.libvirt.org (Postfix) with ESMTPS id A5D9D1325 for ; Fri, 30 Aug 2024 11:13:57 -0400 (EDT) Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-83-UnOLWutSPfiahZ5WDTEjSQ-1; Fri, 30 Aug 2024 11:13:55 -0400 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1AE881955BEE for ; Fri, 30 Aug 2024 15:13:55 +0000 (UTC) Received: from harajuku.usersys.redhat.com.homenet.telecomitalia.it (unknown [10.45.224.110]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3E6E619560AA for ; Fri, 30 Aug 2024 15:13:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on lists.libvirt.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725030837; 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=VZ5sLaJeegDg8PMwKa443iA55nY8hjerKaRUbgtfQeU=; b=awDJI10QZ8bHqLiD+Y4wsuPx2nFgPQzzIGiJ8fN/jHDmpcPU2zX6soR0n8yoF9axM5e74f 8GZDgDq6hWLsMI+UT8AJJaNGqQZCzGrCPN9eI6CqPkmUTlTyNRdcW295AkJnvAvly0+TRW tO4PmFMgjc0Dy1hLZnUC3w2Aj1UFhpw= X-MC-Unique: UnOLWutSPfiahZ5WDTEjSQ-1 From: Andrea Bolognani To: devel@lists.libvirt.org Subject: [PATCH v6 04/13] utils: Use overrides in virFileIsSharedFS() Date: Fri, 30 Aug 2024 17:13:36 +0200 Message-ID: <20240830151345.717568-5-abologna@redhat.com> In-Reply-To: <20240830151345.717568-1-abologna@redhat.com> References: <20240830151345.717568-1-abologna@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Message-ID-Hash: 6KLZERR5NI3BPEMWIGOUNE3KSMCEWQEH X-Message-ID-Hash: 6KLZERR5NI3BPEMWIGOUNE3KSMCEWQEH X-MailFrom: abologna@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-config-1; header-match-config-2; header-match-config-3; header-match-devel.lists.libvirt.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header X-Mailman-Version: 3.2.2 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1725030938749116600 Content-Type: text/plain; charset="utf-8"; x-default="true" If the local admin has explicitly declared that a certain filesystem is to be considered shared, we should treat it as such. Signed-off-by: Andrea Bolognani Reviewed-by: Stefan Berger --- src/util/virfile.c | 42 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/src/util/virfile.c b/src/util/virfile.c index e02ad0ef65..a8abd7d913 100644 --- a/src/util/virfile.c +++ b/src/util/virfile.c @@ -3804,9 +3804,49 @@ virFileGetDefaultHugepage(virHugeTLBFS *fs, return NULL; } =20 +static bool +virFileIsSharedFSOverride(const char *path, + char *const *overrides) +{ + g_autofree char *dirpath =3D NULL; + char *p =3D NULL; + + if (!path || path[0] !=3D '/' || !overrides) + return false; + + if (g_strv_contains((const char *const *) overrides, path)) + return true; + + dirpath =3D g_strdup(path); + + /* Continue until we've scanned the entire path */ + while (p !=3D dirpath) { + + /* Find the last slash */ + if ((p =3D strrchr(dirpath, '/')) =3D=3D NULL) + break; + + /* Truncate the path by overwriting the slash that we've just + * found with a null byte. If it is the very first slash in + * the path, we need to handle things slightly differently */ + if (p =3D=3D dirpath) + *(p+1) =3D '\0'; + else + *p =3D '\0'; + + if (g_strv_contains((const char *const *) overrides, dirpath)) + return true; + } + + return false; +} + int virFileIsSharedFS(const char *path, - char *const *overrides G_GNUC_UNUSED) + char *const *overrides) { + if (virFileIsSharedFSOverride(path, overrides)) + return 1; + return virFileIsSharedFSType(path, VIR_FILE_SHFS_NFS | VIR_FILE_SHFS_GFS2 | --=20 2.46.0