2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2004
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 this implements most of the POSIX NTVFS backend
24 This is the default backend
28 #include "vfs_posix.h"
32 setup config options for a posix share
34 static void pvfs_setup_options(struct pvfs_state *pvfs)
36 int snum = pvfs->tcon->service;
39 if (lp_map_hidden(snum)) pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
40 if (lp_map_archive(snum)) pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
41 if (lp_map_system(snum)) pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
42 if (lp_readonly(snum)) pvfs->flags |= PVFS_FLAG_READONLY;
43 if (lp_strict_sync(snum)) pvfs->flags |= PVFS_FLAG_STRICT_SYNC;
44 if (lp_strict_locking(snum)) pvfs->flags |= PVFS_FLAG_STRICT_LOCKING;
45 if (lp_ci_filesystem(snum)) pvfs->flags |= PVFS_FLAG_CI_FILESYSTEM;
47 if (lp_parm_bool(snum, "posix", "fakeoplocks", False)) {
48 pvfs->flags |= PVFS_FLAG_FAKE_OPLOCKS;
51 #if HAVE_XATTR_SUPPORT
52 if (lp_parm_bool(snum, "posix", "xattr", True)) pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
55 pvfs->sharing_violation_delay = 1000000;
56 delay = lp_parm_int(snum, "posix", "sharedelay");
58 pvfs->sharing_violation_delay = delay;
61 pvfs->share_name = talloc_strdup(pvfs, lp_servicename(snum));
64 FS_ATTR_CASE_SENSITIVE_SEARCH |
65 FS_ATTR_CASE_PRESERVED_NAMES |
66 FS_ATTR_UNICODE_ON_DISK |
69 if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
70 pvfs->fs_attribs |= FS_ATTR_NAMED_STREAMS;
72 if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
73 pvfs->fs_attribs |= FS_ATTR_PERSISTANT_ACLS;
79 connect to a share - used when a tree_connect operation comes
80 in. For a disk based backend we needs to ensure that the base
81 directory exists (tho it doesn't need to be accessible by the user,
84 static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
85 struct smbsrv_request *req, const char *sharename)
87 struct smbsrv_tcon *tcon = req->tcon;
88 struct pvfs_state *pvfs;
93 pvfs = talloc_zero_p(tcon, struct pvfs_state);
95 return NT_STATUS_NO_MEMORY;
98 /* for simplicity of path construction, remove any trailing slash now */
99 base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
100 trim_string(base_directory, NULL, "/");
103 pvfs->base_directory = base_directory;
105 /* the directory must exist. Note that we deliberately don't
106 check that it is readable */
107 if (stat(pvfs->base_directory, &st) != 0 || !S_ISDIR(st.st_mode)) {
108 DEBUG(0,("pvfs_connect: '%s' is not a directory, when connecting to [%s]\n",
109 pvfs->base_directory, sharename));
110 return NT_STATUS_BAD_NETWORK_NAME;
113 tcon->fs_type = talloc_strdup(tcon, "NTFS");
114 tcon->dev_type = talloc_strdup(tcon, "A:");
116 ntvfs->private_data = pvfs;
118 pvfs->brl_context = brl_init(pvfs,
119 pvfs->tcon->smb_conn->connection->server_id,
121 pvfs->tcon->smb_conn->connection->messaging_ctx);
122 if (pvfs->brl_context == NULL) {
123 return NT_STATUS_INTERNAL_DB_CORRUPTION;
126 pvfs->odb_context = odb_init(pvfs,
127 pvfs->tcon->smb_conn->connection->server_id,
128 pvfs->tcon->smb_conn->connection->messaging_ctx);
129 if (pvfs->odb_context == NULL) {
130 return NT_STATUS_INTERNAL_DB_CORRUPTION;
133 /* allocate the fnum id -> ptr tree */
134 pvfs->idtree_fnum = idr_init(pvfs);
135 if (pvfs->idtree_fnum == NULL) {
136 return NT_STATUS_NO_MEMORY;
139 /* allocate the search handle -> ptr tree */
140 pvfs->idtree_search = idr_init(pvfs);
141 if (pvfs->idtree_search == NULL) {
142 return NT_STATUS_NO_MEMORY;
145 status = pvfs_mangle_init(pvfs);
146 if (!NT_STATUS_IS_OK(status)) {
150 pvfs_setup_options(pvfs);
153 /* who had the stupid idea to generate a signal on a large
154 file write instead of just failing it!? */
155 BlockSignals(True, SIGXFSZ);
162 disconnect from a share
164 static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs,
165 struct smbsrv_tcon *tcon)
171 check if a directory exists
173 static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
174 struct smbsrv_request *req, struct smb_chkpath *cp)
176 struct pvfs_state *pvfs = ntvfs->private_data;
177 struct pvfs_filename *name;
180 /* resolve the cifs name to a posix name */
181 status = pvfs_resolve_name(pvfs, req, cp->in.path, 0, &name);
182 if (!NT_STATUS_IS_OK(status)) {
187 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
190 if (!S_ISDIR(name->st.st_mode)) {
191 return NT_STATUS_NOT_A_DIRECTORY;
200 static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
201 struct smbsrv_request *req, struct smb_copy *cp)
203 DEBUG(0,("pvfs_copy not implemented\n"));
204 return NT_STATUS_NOT_SUPPORTED;
208 return print queue info
210 static NTSTATUS pvfs_lpq(struct ntvfs_module_context *ntvfs,
211 struct smbsrv_request *req, union smb_lpq *lpq)
213 return NT_STATUS_NOT_SUPPORTED;
216 /* SMBtrans - not used on file shares */
217 static NTSTATUS pvfs_trans(struct ntvfs_module_context *ntvfs,
218 struct smbsrv_request *req, struct smb_trans2 *trans2)
220 return NT_STATUS_ACCESS_DENIED;
224 initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
226 NTSTATUS ntvfs_posix_init(void)
229 struct ntvfs_ops ops;
233 ops.type = NTVFS_DISK;
235 /* fill in all the operations */
236 ops.connect = pvfs_connect;
237 ops.disconnect = pvfs_disconnect;
238 ops.unlink = pvfs_unlink;
239 ops.chkpath = pvfs_chkpath;
240 ops.qpathinfo = pvfs_qpathinfo;
241 ops.setpathinfo = pvfs_setpathinfo;
242 ops.openfile = pvfs_open;
243 ops.mkdir = pvfs_mkdir;
244 ops.rmdir = pvfs_rmdir;
245 ops.rename = pvfs_rename;
246 ops.copy = pvfs_copy;
247 ops.ioctl = pvfs_ioctl;
248 ops.read = pvfs_read;
249 ops.write = pvfs_write;
250 ops.seek = pvfs_seek;
251 ops.flush = pvfs_flush;
252 ops.close = pvfs_close;
253 ops.exit = pvfs_exit;
254 ops.lock = pvfs_lock;
255 ops.setfileinfo = pvfs_setfileinfo;
256 ops.qfileinfo = pvfs_qfileinfo;
257 ops.fsinfo = pvfs_fsinfo;
259 ops.search_first = pvfs_search_first;
260 ops.search_next = pvfs_search_next;
261 ops.search_close = pvfs_search_close;
262 ops.trans = pvfs_trans;
263 ops.logoff = pvfs_logoff;
264 ops.async_setup = pvfs_async_setup;
265 ops.cancel = pvfs_cancel;
267 /* register ourselves with the NTVFS subsystem. We register
268 under the name 'default' as we wish to be the default
269 backend, and also register as 'posix' */
270 ops.name = "default";
271 ret = ntvfs_register(&ops);
274 ret = ntvfs_register(&ops);
276 if (!NT_STATUS_IS_OK(ret)) {
277 DEBUG(0,("Failed to register POSIX backend!\n"));