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Commit ddfbefbd authored by Steve French's avatar Steve French Committed by Steve French
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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: default avatarSteve French <sfrench@us.ibm.com>
Signed-off-by: default avatarPavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent b8030603

fs/cifs/Makefile

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@@ -16,4 +16,4 @@ cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o 


cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o



cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o
 
cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o smb2maperror.o

fs/cifs/smb2maperror.c

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+2477 −0

File added.

Preview size limit exceeded, changes collapsed.

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 */

fs/cifs/smb2proto.h

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Original line number Diff line number Diff line 
/*

 *   fs/cifs/smb2proto.h

 *

 *   Copyright (c) International Business Machines  Corp., 2002, 2011

 *                 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 _SMB2PROTO_H

#define _SMB2PROTO_H

#include <linux/nls.h>

#include <linux/key-type.h>



struct statfs;



/*

 *****************************************************************

 * All Prototypes

 *****************************************************************

 */

extern int map_smb2_to_linux_error(char *buf, bool log_err);



#endif			/* _SMB2PROTO_H */