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authorSteve French <sfrench@us.ibm.com>2011-03-15 02:08:48 +0000
committerSteve French <smfrench@gmail.com>2012-07-24 10:25:15 -0500
commitddfbefbd393fb1a935bdf27cba5ad2eb24a76e75 (patch)
tree11f84bfc5c091ae63991c3627874de3ab5bc9ea7 /fs/cifs/smb2pdu.h
parentb8030603d94a231c7fdee4c1ac369537f1fb8fb0 (diff)
downloadlwn-ddfbefbd393fb1a935bdf27cba5ad2eb24a76e75.tar.gz
lwn-ddfbefbd393fb1a935bdf27cba5ad2eb24a76e75.zip
CIFS: Map SMB2 status codes to POSIX errors
Add mapping table for 32 bit SMB2 status codes to linux errors. Note that SMB2 does not use DOS/OS2 errors (ever) so mapping to DOS/OS2 errors as a common network subset (as we do for cifs) doesn't help. And note that the set of status codes is much more complete here. Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
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+++ b/fs/cifs/smb2pdu.h
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+/*
+ * fs/cifs/smb2pdu.h
+ *
+ * Copyright (c) International Business Machines Corp., 2009, 2010
+ * Etersoft, 2012
+ * Author(s): Steve French (sfrench@us.ibm.com)
+ * Pavel Shilovsky (pshilovsky@samba.org) 2012
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _SMB2PDU_H
+#define _SMB2PDU_H
+
+#include <net/sock.h>
+
+/*
+ * SMB2 Header Definition
+ *
+ * "MBZ" : Must be Zero
+ * "BB" : BugBug, Something to check/review/analyze later
+ * "PDU" : "Protocol Data Unit" (ie a network "frame")
+ *
+ */
+struct smb2_hdr {
+ __be32 smb2_buf_length; /* big endian on wire */
+ /* length is only two or three bytes - with
+ one or two byte type preceding it that MBZ */
+ __u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
+ __le16 StructureSize; /* 64 */
+ __le16 CreditCharge; /* MBZ */
+ __le32 Status; /* Error from server */
+ __le16 Command;
+ __le16 CreditRequest; /* CreditResponse */
+ __le32 Flags;
+ __le32 NextCommand;
+ __u64 MessageId; /* opaque - so can stay little endian */
+ __le32 ProcessId;
+ __u32 TreeId; /* opaque - so do not make little endian */
+ __u64 SessionId; /* opaque - so do not make little endian */
+ __u8 Signature[16];
+} __packed;
+
+#endif /* _SMB2PDU_H */