1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
/*
Unix SMB/CIFS implementation.
POSIX NTVFS backend
Copyright (C) Andrew Tridgell 2004
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
this implements most of the POSIX NTVFS backend
This is the default backend
*/
#include "include/includes.h"
#include "vfs_posix.h"
/*
setup config options for a posix share
*/
static void pvfs_setup_options(struct pvfs_state *pvfs)
{
int snum = pvfs->tcon->service;
if (lp_map_hidden(snum)) pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
if (lp_map_archive(snum)) pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
if (lp_map_system(snum)) pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
if (lp_readonly(snum)) pvfs->flags |= PVFS_FLAG_READONLY;
pvfs->share_name = talloc_strdup(pvfs, lp_servicename(snum));
}
/*
connect to a share - used when a tree_connect operation comes
in. For a disk based backend we needs to ensure that the base
directory exists (tho it doesn't need to be accessible by the user,
that comes later)
*/
static NTSTATUS pvfs_connect(struct smbsrv_request *req, const char *sharename)
{
struct smbsrv_tcon *tcon = req->tcon;
struct pvfs_state *pvfs;
struct stat st;
char *base_directory;
DEBUG(0,("WARNING: the posix vfs handler is incomplete - you probably want \"ntvfs handler = simple\"\n"));
pvfs = talloc_named(tcon, sizeof(struct pvfs_state), "pvfs_connect(%s)", sharename);
if (pvfs == NULL) {
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCTP(pvfs);
/* for simplicity of path construction, remove any trailing slash now */
base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
trim_string(base_directory, NULL, "/");
pvfs->tcon = tcon;
pvfs->base_directory = base_directory;
/* the directory must exist. Note that we deliberately don't
check that it is readable */
if (stat(pvfs->base_directory, &st) != 0 || !S_ISDIR(st.st_mode)) {
DEBUG(0,("pvfs_connect: '%s' is not a directory, when connecting to [%s]\n",
pvfs->base_directory, sharename));
return NT_STATUS_BAD_NETWORK_NAME;
}
tcon->fs_type = talloc_strdup(tcon, "NTFS");
tcon->dev_type = talloc_strdup(tcon, "A:");
tcon->ntvfs_private = pvfs;
pvfs_setup_options(pvfs);
return NT_STATUS_OK;
}
/*
disconnect from a share
*/
static NTSTATUS pvfs_disconnect(struct smbsrv_tcon *tcon)
{
return NT_STATUS_OK;
}
/*
ioctl interface - we don't do any
*/
static NTSTATUS pvfs_ioctl(struct smbsrv_request *req, union smb_ioctl *io)
{
DEBUG(0,("pvfs_ioctl not implemented\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/*
check if a directory exists
*/
static NTSTATUS pvfs_chkpath(struct smbsrv_request *req, struct smb_chkpath *cp)
{
struct pvfs_state *pvfs = req->tcon->ntvfs_private;
struct pvfs_filename *name;
NTSTATUS status;
/* resolve the cifs name to a posix name */
status = pvfs_resolve_name(pvfs, req, cp->in.path, 0, &name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!name->exists) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
if (!S_ISDIR(name->st.st_mode)) {
return NT_STATUS_NOT_A_DIRECTORY;
}
return NT_STATUS_OK;
}
/*
rename a set of files
*/
static NTSTATUS pvfs_rename(struct smbsrv_request *req, union smb_rename *ren)
{
DEBUG(0,("pvfs_rename not implemented\n"));
return NT_STATUS_NOT_IMPLEMENTED;
}
/*
copy a set of files
*/
static NTSTATUS pvfs_copy(struct smbsrv_request *req, struct smb_copy *cp)
{
DEBUG(0,("pvfs_copy not implemented\n"));
return NT_STATUS_NOT_SUPPORTED;
}
/*
seek in a file
*/
static NTSTATUS pvfs_seek(struct smbsrv_request *req, struct smb_seek *io)
{
DEBUG(0,("pvfs_seek not implemented\n"));
return NT_STATUS_NOT_SUPPORTED;
}
/*
flush a file
*/
static NTSTATUS pvfs_flush(struct smbsrv_request *req, struct smb_flush *io)
{
DEBUG(0,("pvfs_flush not implemented\n"));
return NT_STATUS_NOT_IMPLEMENTED;
}
/*
exit - closing files?
*/
static NTSTATUS pvfs_exit(struct smbsrv_request *req)
{
DEBUG(0,("pvfs_exit not implemented\n"));
return NT_STATUS_NOT_SUPPORTED;
}
/*
lock a byte range
*/
static NTSTATUS pvfs_lock(struct smbsrv_request *req, union smb_lock *lck)
{
DEBUG(0,("pvfs_lock not implemented\n"));
return NT_STATUS_NOT_IMPLEMENTED;
}
/*
set info on a pathname
*/
static NTSTATUS pvfs_setpathinfo(struct smbsrv_request *req, union smb_setfileinfo *st)
{
DEBUG(0,("pvfs_setpathinfo not implemented\n"));
return NT_STATUS_NOT_SUPPORTED;
}
/*
return print queue info
*/
static NTSTATUS pvfs_lpq(struct smbsrv_request *req, union smb_lpq *lpq)
{
return NT_STATUS_NOT_SUPPORTED;
}
/* SMBtrans - not used on file shares */
static NTSTATUS pvfs_trans(struct smbsrv_request *req, struct smb_trans2 *trans2)
{
return NT_STATUS_ACCESS_DENIED;
}
/*
initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
*/
NTSTATUS ntvfs_posix_init(void)
{
NTSTATUS ret;
struct ntvfs_ops ops;
ZERO_STRUCT(ops);
ops.type = NTVFS_DISK;
/* fill in all the operations */
ops.connect = pvfs_connect;
ops.disconnect = pvfs_disconnect;
ops.unlink = pvfs_unlink;
ops.chkpath = pvfs_chkpath;
ops.qpathinfo = pvfs_qpathinfo;
ops.setpathinfo = pvfs_setpathinfo;
ops.open = pvfs_open;
ops.mkdir = pvfs_mkdir;
ops.rmdir = pvfs_rmdir;
ops.rename = pvfs_rename;
ops.copy = pvfs_copy;
ops.ioctl = pvfs_ioctl;
ops.read = pvfs_read;
ops.write = pvfs_write;
ops.seek = pvfs_seek;
ops.flush = pvfs_flush;
ops.close = pvfs_close;
ops.exit = pvfs_exit;
ops.lock = pvfs_lock;
ops.setfileinfo = pvfs_setfileinfo;
ops.qfileinfo = pvfs_qfileinfo;
ops.fsinfo = pvfs_fsinfo;
ops.lpq = pvfs_lpq;
ops.search_first = pvfs_search_first;
ops.search_next = pvfs_search_next;
ops.search_close = pvfs_search_close;
ops.trans = pvfs_trans;
/* register ourselves with the NTVFS subsystem. We register
under the name 'default' as we wish to be the default
backend, and also register as 'posix' */
ops.name = "default";
ret = register_backend("ntvfs", &ops);
ops.name = "posix";
ret = register_backend("ntvfs", &ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register POSIX backend!\n"));
}
return ret;
}
|
