From nobody Sun Feb 8 00:26:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=reactos.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1662222294585185.33813609007927; Sat, 3 Sep 2022 09:24:54 -0700 (PDT) Received: from localhost ([::1]:33706 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oUVwy-000525-P5 for importer@patchew.org; Sat, 03 Sep 2022 12:24:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56452) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oUVvQ-0003WY-P3; Sat, 03 Sep 2022 12:23:16 -0400 Received: from iserv.reactos.org ([2a01:4f8:1c17:5ae1::1]:39072) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oUVvO-00064j-Lk; Sat, 03 Sep 2022 12:23:16 -0400 Received: by iserv.reactos.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oUVvK-0002VU-7U; Sat, 03 Sep 2022 16:23:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=reactos.org ; s=25047; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=WHv6pmGMYmsvVdtQ+Ffp1n10JkheWRlDlCVMBRmmniA=; b=PMXXDmBlD6TEOTIoQxM8r6ja9J 9GHxv93VB2whbQQX/g0FzugEvmPw9TSITb80Zj+433oYHLqtd8VuQQptqsZbJXsWmr0ScEMpBhwgM AKqp47QiUKyTOprn7ntiBZU4OpVrBIUpkp/TYylaXI8/o58aMhcBuAZZ/OKxYJHSWOZQ=; From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= To: Kevin Wolf , Hanna Reitz , qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, =?UTF-8?q?Herv=C3=A9=20Poussineau?= Subject: [PATCH 1/2] vvfat: allow some writes to bootsector Date: Sat, 3 Sep 2022 18:23:01 +0200 Message-Id: <20220903162302.3176003-2-hpoussin@reactos.org> X-Mailer: git-send-email 2.36.2 In-Reply-To: <20220903162302.3176003-1-hpoussin@reactos.org> References: <20220903162302.3176003-1-hpoussin@reactos.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a01:4f8:1c17:5ae1::1; envelope-from=hpoussin@reactos.org; helo=iserv.reactos.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1662222297026100001 'reserved1' field in bootsector is used to mark volume dirty, or need to ve= rify. Allow writes to bootsector which only changes the 'reserved1' field. This fixes I/O errors on Windows guests. Resolves: https://bugs.launchpad.net/qemu/+bug/1889421 Signed-off-by: Herv=C3=A9 Poussineau --- block/vvfat.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/block/vvfat.c b/block/vvfat.c index d6dd919683d..35057a51c67 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -2993,11 +2993,27 @@ DLOG(checkpoint()); =20 vvfat_close_current_file(s); =20 + if (sector_num =3D=3D s->offset_to_bootsector && nb_sectors =3D=3D 1) { + /* + * Write on bootsector. Allow only changing the reserved1 field, + * used to mark volume dirtiness + */ + const unsigned char *initial =3D s->first_sectors + + s->offset_to_bootsector * 0x200; + for (i =3D 0; i < 0x200; i++) { + if (i !=3D offsetof(bootsector_t, u.fat16.reserved1) && + initial[i] !=3D buf[i]) { + fprintf(stderr, "Tried to write to protected bootsector\n"= ); + return -1; + } + } + return 0; + } + /* * Some sanity checks: * - do not allow writing to the boot sector */ - if (sector_num < s->offset_to_fat) return -1; =20 --=20 2.36.2 From nobody Sun Feb 8 00:26:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=reactos.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1662222476101637.4107432373121; Sat, 3 Sep 2022 09:27:56 -0700 (PDT) Received: from localhost ([::1]:53536 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oUVzv-0007nX-5O for importer@patchew.org; Sat, 03 Sep 2022 12:27:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56454) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oUVvR-0003Wy-Q3; Sat, 03 Sep 2022 12:23:17 -0400 Received: from iserv.reactos.org ([2a01:4f8:1c17:5ae1::1]:39098) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oUVvP-00064s-B3; Sat, 03 Sep 2022 12:23:17 -0400 Received: by iserv.reactos.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oUVvK-0002VU-Q0; Sat, 03 Sep 2022 16:23:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=reactos.org ; s=25047; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=5ekwVuKp50o20gsLt71Ijg0gPISOwRXBVNkmFAMKTaQ=; b=GkYlKka2bS8qSNd+aY504hEnGy 9DRQc2V2i45vowDsy091wXITNk/LdNWWiikoO/eRZYaiGAE6wwuX20TbztxyS2Z1k7bg7eBMmbwRA AwFQFDbWMnbaEQ2WFKicpB9Kn6T8e3+kcaAVLj6Gcq596+nBDA/ufk20fweh3QNIXv+M=; From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= To: Kevin Wolf , Hanna Reitz , qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, =?UTF-8?q?Herv=C3=A9=20Poussineau?= Subject: [PATCH 2/2] vvfat: allow spaces in file names Date: Sat, 3 Sep 2022 18:23:02 +0200 Message-Id: <20220903162302.3176003-3-hpoussin@reactos.org> X-Mailer: git-send-email 2.36.2 In-Reply-To: <20220903162302.3176003-1-hpoussin@reactos.org> References: <20220903162302.3176003-1-hpoussin@reactos.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a01:4f8:1c17:5ae1::1; envelope-from=hpoussin@reactos.org; helo=iserv.reactos.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1662222477986100001 In R/W mode, files with spaces were never created on host side. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1176 Fixes: c79e243ed67683d6d06692bd7040f7394da178b0 Signed-off-by: Herv=C3=A9 Poussineau Reviewed-by: Kevin Wolf Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- block/vvfat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/vvfat.c b/block/vvfat.c index 35057a51c67..9d877028573 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -499,7 +499,7 @@ static bool valid_filename(const unsigned char *name) (c >=3D 'A' && c <=3D 'Z') || (c >=3D 'a' && c <=3D 'z') || c > 127 || - strchr("$%'-_@~`!(){}^#&.+,;=3D[]", c) !=3D NULL)) + strchr(" $%'-_@~`!(){}^#&.+,;=3D[]", c) !=3D NULL)) { return false; } --=20 2.36.2