path: root/fs/cifs/netmisc.c

/*
 *   fs/cifs/netmisc.c
 *
 *   Copyright (c) International Business Machines  Corp., 2002,2008
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   Error mapping routines from Samba libsmb/errormap.c
 *   Copyright (C) Andrew Tridgell 2001
 *
 *   This program is free software;  you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program;  if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/net.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/ctype.h>
#include <linux/fs.h>
#include <asm/div64.h>
#include <asm/byteorder.h>
#include <linux/inet.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "smberr.h"
#include "cifs_debug.h"
#include "nterr.h"

struct smb_to_posix_error {
	__u16 smb_err;
	int posix_code;
};

static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
	{ERRbadfunc, -EINVAL},
	{ERRbadfile, -ENOENT},
	{ERRbadpath, -ENOTDIR},
	{ERRnofids, -EMFILE},
	{ERRnoaccess, -EACCES},
	{ERRbadfid, -EBADF},
	{ERRbadmcb, -EIO},
	{ERRnomem, -ENOMEM},
	{ERRbadmem, -EFAULT},
	{ERRbadenv, -EFAULT},
	{ERRbadformat, -EINVAL},
	{ERRbadaccess, -EACCES},
	{ERRbaddata, -EIO},
	{ERRbaddrive, -ENXIO},
	{ERRremcd, -EACCES},
	{ERRdiffdevice, -EXDEV},
	{ERRnofiles, -ENOENT},
	{ERRbadshare, -ETXTBSY},
	{ERRlock, -EACCES},
	{ERRunsup, -EINVAL},
	{ERRnosuchshare, -ENXIO},
	{ERRfilexists, -EEXIST},
	{ERRinvparm, -EINVAL},
	{ERRdiskfull, -ENOSPC},
	{ERRinvname, -ENOENT},
	{ERRinvlevel, -EOPNOTSUPP},
	{ERRdirnotempty, -ENOTEMPTY},
	{ERRnotlocked, -ENOLCK},
	{ERRcancelviolation, -ENOLCK},
	{ERRalreadyexists, -EEXIST},
	{ERRmoredata, -EOVERFLOW},
	{ERReasnotsupported, -EOPNOTSUPP},
	{ErrQuota, -EDQUOT},
	{ErrNotALink, -ENOLINK},
	{ERRnetlogonNotStarted, -ENOPROTOOPT},
	{ERRsymlink, -EOPNOTSUPP},
	{ErrTooManyLinks, -EMLINK},
	{0, 0}
};

static const struct smb_to_posix_error mapping_table_ERRSRV[] = {
	{ERRerror, -EIO},
	{ERRbadpw, -EACCES},  /* was EPERM */
	{ERRbadtype, -EREMOTE},
	{ERRaccess, -EACCES},
	{ERRinvtid, -ENXIO},
	{ERRinvnetname, -ENXIO},
	{ERRinvdevice, -ENXIO},
	{ERRqfull, -ENOSPC},
	{ERRqtoobig, -ENOSPC},
	{ERRqeof, -EIO},
	{ERRinvpfid, -EBADF},
	{ERRsmbcmd, -EBADRQC},
	{ERRsrverror, -EIO},
	{ERRbadBID, -EIO},
	{ERRfilespecs, -EINVAL},
	{ERRbadLink, -EIO},
	{ERRbadpermits, -EINVAL},
	{ERRbadPID, -ESRCH},
	{ERRsetattrmode, -EINVAL},
	{ERRpaused, -EHOSTDOWN},
	{ERRmsgoff, -EHOSTDOWN},
	{ERRnoroom, -ENOSPC},
	{ERRrmuns, -EUSERS},
	{ERRtimeout, -ETIME},
	{ERRnoresource, -ENOBUFS},
	{ERRtoomanyuids, -EUSERS},
	{ERRbaduid, -EACCES},
	{ERRusempx, -EIO},
	{ERRusestd, -EIO},
	{ERR_NOTIFY_ENUM_DIR, -ENOBUFS},
	{ERRnoSuchUser, -EACCES},
/*	{ERRaccountexpired, -EACCES},
	{ERRbadclient, -EACCES},
	{ERRbadLogonTime, -EACCES},
	{ERRpasswordExpired, -EACCES},*/
	{ERRaccountexpired, -EKEYEXPIRED},
	{ERRbadclient, -EACCES},
	{ERRbadLogonTime, -EACCES},
	{ERRpasswordExpired, -EKEYEXPIRED},

	{ERRnosupport, -EINVAL},
	{0, 0}
};

static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
	{0, 0}
};

/* Convert string containing dotted ip address to binary form */
/* returns 0 if invalid address */

int
cifs_inet_pton(const int address_family, const char *cp, void *dst)
{
	int ret = 0;

	/* calculate length by finding first slash or NULL */
	if (address_family == AF_INET)
		ret = in4_pton(cp, -1 /* len */, dst, '\\', NULL);
	else if (address_family == AF_INET6)
		ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);

	cFYI(DBG2, ("address conversion returned %d for %s", ret, cp));
	if (ret > 0)
		ret = 1;
	return ret;
}

/*****************************************************************************
convert a NT status code to a dos class/code
 *****************************************************************************/
/* NT status -> dos error map */
static const struct {
	__u8 dos_class;
	__u16