be4cb9e3d4
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/*
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* fs/cifs/smb2inode.c
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*
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* Copyright (C) International Business Machines Corp., 2002, 2011
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* Etersoft, 2012
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* Author(s): Pavel Shilovsky (pshilovsky@samba.org),
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* Steve French (sfrench@us.ibm.com)
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/fs.h>
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#include <linux/stat.h>
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#include <linux/slab.h>
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#include <linux/pagemap.h>
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#include <asm/div64.h>
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#include "cifsfs.h"
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#include "cifspdu.h"
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#include "cifsglob.h"
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#include "cifsproto.h"
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#include "cifs_debug.h"
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#include "cifs_fs_sb.h"
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#include "cifs_unicode.h"
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#include "fscache.h"
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#include "smb2glob.h"
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#include "smb2pdu.h"
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#include "smb2proto.h"
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static int
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smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb, const char *full_path,
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__u32 desired_access, __u32 create_disposition,
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__u32 file_attributes, __u32 create_options,
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void *data, int command)
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{
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int rc, tmprc = 0;
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u64 persistent_fid, volatile_fid;
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__le16 *utf16_path;
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utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
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if (!utf16_path)
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return -ENOMEM;
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rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
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desired_access, create_disposition, file_attributes,
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create_options);
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if (rc) {
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kfree(utf16_path);
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return rc;
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}
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switch (command) {
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case SMB2_OP_DELETE:
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break;
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case SMB2_OP_QUERY_INFO:
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tmprc = SMB2_query_info(xid, tcon, persistent_fid,
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volatile_fid,
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(struct smb2_file_all_info *)data);
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break;
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case SMB2_OP_MKDIR:
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/*
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* Directories are created through parameters in the
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* SMB2_open() call.
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*/
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break;
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default:
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cERROR(1, "Invalid command");
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break;
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}
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rc = SMB2_close(xid, tcon, persistent_fid, volatile_fid);
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if (tmprc)
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rc = tmprc;
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kfree(utf16_path);
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return rc;
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}
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static void
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move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
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{
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memcpy(dst, src, (size_t)(&src->CurrentByteOffset) - (size_t)src);
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dst->CurrentByteOffset = src->CurrentByteOffset;
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dst->Mode = src->Mode;
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dst->AlignmentRequirement = src->AlignmentRequirement;
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dst->IndexNumber1 = 0; /* we don't use it */
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}
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int
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smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb, const char *full_path,
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FILE_ALL_INFO *data, bool *adjust_tz)
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{
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int rc;
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struct smb2_file_all_info *smb2_data;
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*adjust_tz = false;
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smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
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GFP_KERNEL);
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if (smb2_data == NULL)
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return -ENOMEM;
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rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path,
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FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0,
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smb2_data, SMB2_OP_QUERY_INFO);
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if (rc)
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goto out;
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move_smb2_info_to_cifs(data, smb2_data);
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out:
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kfree(smb2_data);
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return rc;
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}
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