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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - fs/cifs/smb2inode.c
4 * Copyright (C) International Business Machines Corp., 2002, 2011
6 * Author(s): Pavel Shilovsky (pshilovsky@samba.org),
7 * Steve French (sfrench@us.ibm.com)
9 * This library is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License as published
11 * by the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
17 * the GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/stat.h>
25 #include <linux/slab.h>
26 #include <linux/pagemap.h>
27 #include <asm/div64.h>
31 #include "cifsproto.h"
32 #include "cifs_debug.h"
33 #include "cifs_fs_sb.h"
34 #include "cifs_unicode.h"
38 #include "smb2proto.h"
41 smb2_open_op_close(const unsigned int xid
, struct cifs_tcon
*tcon
,
42 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
43 __u32 desired_access
, __u32 create_disposition
,
44 __u32 file_attributes
, __u32 create_options
,
45 void *data
, int command
)
48 u64 persistent_fid
, volatile_fid
;
51 utf16_path
= cifs_convert_path_to_utf16(full_path
, cifs_sb
);
55 rc
= SMB2_open(xid
, tcon
, utf16_path
, &persistent_fid
, &volatile_fid
,
56 desired_access
, create_disposition
, file_attributes
,
57 create_options
, NULL
);
66 case SMB2_OP_QUERY_INFO
:
67 tmprc
= SMB2_query_info(xid
, tcon
, persistent_fid
,
69 (struct smb2_file_all_info
*)data
);
73 * Directories are created through parameters in the
78 tmprc
= SMB2_rename(xid
, tcon
, persistent_fid
, volatile_fid
,
81 case SMB2_OP_HARDLINK
:
82 tmprc
= SMB2_set_hardlink(xid
, tcon
, persistent_fid
,
83 volatile_fid
, (__le16
*)data
);
86 cERROR(1, "Invalid command");
90 rc
= SMB2_close(xid
, tcon
, persistent_fid
, volatile_fid
);
98 move_smb2_info_to_cifs(FILE_ALL_INFO
*dst
, struct smb2_file_all_info
*src
)
100 memcpy(dst
, src
, (size_t)(&src
->CurrentByteOffset
) - (size_t)src
);
101 dst
->CurrentByteOffset
= src
->CurrentByteOffset
;
102 dst
->Mode
= src
->Mode
;
103 dst
->AlignmentRequirement
= src
->AlignmentRequirement
;
104 dst
->IndexNumber1
= 0; /* we don't use it */
108 smb2_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
109 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
110 FILE_ALL_INFO
*data
, bool *adjust_tz
)
113 struct smb2_file_all_info
*smb2_data
;
117 smb2_data
= kzalloc(sizeof(struct smb2_file_all_info
) + MAX_NAME
* 2,
119 if (smb2_data
== NULL
)
122 rc
= smb2_open_op_close(xid
, tcon
, cifs_sb
, full_path
,
123 FILE_READ_ATTRIBUTES
, FILE_OPEN
, 0, 0,
124 smb2_data
, SMB2_OP_QUERY_INFO
);
128 move_smb2_info_to_cifs(data
, smb2_data
);
135 smb2_mkdir(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
136 struct cifs_sb_info
*cifs_sb
)
138 return smb2_open_op_close(xid
, tcon
, cifs_sb
, name
,
139 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
, 0,
140 CREATE_NOT_FILE
, NULL
, SMB2_OP_MKDIR
);
144 smb2_mkdir_setinfo(struct inode
*inode
, const char *name
,
145 struct cifs_sb_info
*cifs_sb
, struct cifs_tcon
*tcon
,
146 const unsigned int xid
)
148 FILE_BASIC_INFO data
;
149 struct cifsInodeInfo
*cifs_i
;
153 memset(&data
, 0, sizeof(data
));
154 cifs_i
= CIFS_I(inode
);
155 dosattrs
= cifs_i
->cifsAttrs
| ATTR_READONLY
;
156 data
.Attributes
= cpu_to_le32(dosattrs
);
157 tmprc
= smb2_open_op_close(xid
, tcon
, cifs_sb
, name
,
158 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
, 0,
159 CREATE_NOT_FILE
, &data
, SMB2_OP_SET_INFO
);
161 cifs_i
->cifsAttrs
= dosattrs
;
165 smb2_rmdir(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
166 struct cifs_sb_info
*cifs_sb
)
168 return smb2_open_op_close(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
169 0, CREATE_NOT_FILE
| CREATE_DELETE_ON_CLOSE
,
170 NULL
, SMB2_OP_DELETE
);
174 smb2_unlink(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
175 struct cifs_sb_info
*cifs_sb
)
177 return smb2_open_op_close(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
178 0, CREATE_DELETE_ON_CLOSE
, NULL
,
183 smb2_set_path_attr(const unsigned int xid
, struct cifs_tcon
*tcon
,
184 const char *from_name
, const char *to_name
,
185 struct cifs_sb_info
*cifs_sb
, __u32 access
, int command
)
187 __le16
*smb2_to_name
= NULL
;
190 smb2_to_name
= cifs_convert_path_to_utf16(to_name
, cifs_sb
);
191 if (smb2_to_name
== NULL
) {
193 goto smb2_rename_path
;
196 rc
= smb2_open_op_close(xid
, tcon
, cifs_sb
, from_name
, access
,
197 FILE_OPEN
, 0, 0, smb2_to_name
, command
);
204 smb2_rename_path(const unsigned int xid
, struct cifs_tcon
*tcon
,
205 const char *from_name
, const char *to_name
,
206 struct cifs_sb_info
*cifs_sb
)
208 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
, cifs_sb
,
209 DELETE
, SMB2_OP_RENAME
);
213 smb2_create_hardlink(const unsigned int xid
, struct cifs_tcon
*tcon
,
214 const char *from_name
, const char *to_name
,
215 struct cifs_sb_info
*cifs_sb
)
217 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
, cifs_sb
,
218 FILE_READ_ATTRIBUTES
, SMB2_OP_HARDLINK
);