From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C29CD1EA91; Tue, 27 May 2025 16:48:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748364506; cv=none; b=RTr1ecc3RvY1Ko0gwaEOxOVkrwXRyxkg+j9egviUG+jbjnkiBx2fhSE0RYIMfjesukbhsFrsu9nUOOOssWW70uWP7dLwwqtNfLQZpPXfPQ4G6TU2M473gATFwJPa/A5UAExYR98KjFZulsf1LQaDWOqyoKdLtooTrPdO4q2G83s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748364506; c=relaxed/simple; bh=UqYX39vKF4DkWPoFifD4AwNaPV4Ja2n64apBDO43hrA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dYN9oeRNdZlf+M8kcILRsHcWVlyQRsNtd2Dm8kaKlb25oEGvpaWHww5GZBQYBGzRUIar2BK4Zuf3o9hjghD934Avlm6BA6cOni9KDocQhzIGoJ4TfVQ5G9ztNMnp/2MD3qC1Y3wAWtkccjw2eZ3UZfqyUKGH9+d0DlRL3cV8nVQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=EfnqRmLZ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="EfnqRmLZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4FE3FC4CEEB; Tue, 27 May 2025 16:48:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748364506; bh=UqYX39vKF4DkWPoFifD4AwNaPV4Ja2n64apBDO43hrA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EfnqRmLZHYD2UwSxMxHvKfD39xwNkJcq5VLDH0T/gbjYyTebH9k+f/OJatq91AUE9 4+B1ehHNPgZhc+ZR1GOk/4hRmpE5QNR9vG7r0KtG7Lps2W4n4CqqwUCSiwW1B5xs3b +3Q8SCOs1xhsZos+ZexH8GH7bTU4JZXpC6ODvcHI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Pali=20Roh=C3=A1r?= , Steve French , Sasha Levin Subject: [PATCH 6.12 048/626] cifs: Fix querying and creating MF symlinks over SMB1 Date: Tue, 27 May 2025 18:19:01 +0200 Message-ID: <20250527162447.015864138@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250527162445.028718347@linuxfoundation.org> References: <20250527162445.028718347@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Pali Rohár [ Upstream commit 4236ac9fe5b8b42756070d4abfb76fed718e87c2 ] Old SMB1 servers without CAP_NT_SMBS do not support CIFS_open() function and instead SMBLegacyOpen() needs to be used. This logic is already handled in cifs_open_file() function, which is server->ops->open callback function. So for querying and creating MF symlinks use open callback function instead of CIFS_open() function directly. This change fixes querying and creating new MF symlinks on Windows 98. Currently cifs_query_mf_symlink() is not able to detect MF symlink and cifs_create_mf_symlink() is failing with EIO error. Signed-off-by: Pali Rohár Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/smb/client/link.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c index 47ddeb7fa1116..aa45ef6ae99a6 100644 --- a/fs/smb/client/link.c +++ b/fs/smb/client/link.c @@ -257,7 +257,7 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, struct cifs_open_parms oparms; struct cifs_io_parms io_parms = {0}; int buf_type = CIFS_NO_BUFFER; - FILE_ALL_INFO file_info; + struct cifs_open_info_data query_data; oparms = (struct cifs_open_parms) { .tcon = tcon, @@ -269,11 +269,11 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, .fid = &fid, }; - rc = CIFS_open(xid, &oparms, &oplock, &file_info); + rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, &query_data); if (rc) return rc; - if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) { + if (query_data.fi.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) { rc = -ENOENT; /* it's not a symlink */ goto out; @@ -312,7 +312,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, .fid = &fid, }; - rc = CIFS_open(xid, &oparms, &oplock, NULL); + rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, NULL); if (rc) return rc; -- 2.39.5