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 HAVE_XATTR_SUPPORT
48 if (lp_parm_bool(snum, "posix", "xattr", True)) pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
51 pvfs->sharing_violation_delay = 1000000;
52 delay = lp_parm_int(snum, "posix", "sharedelay");
54 pvfs->sharing_violation_delay = delay;
57 pvfs->share_name = talloc_strdup(pvfs, lp_servicename(snum));
62 connect to a share - used when a tree_connect operation comes
63 in. For a disk based backend we needs to ensure that the base
64 directory exists (tho it doesn't need to be accessible by the user,
67 static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
68 struct smbsrv_request *req, const char *sharename)
70 struct smbsrv_tcon *tcon = req->tcon;
71 struct pvfs_state *pvfs;
76 pvfs = talloc_zero_p(tcon, struct pvfs_state);
78 return NT_STATUS_NO_MEMORY;
81 /* for simplicity of path construction, remove any trailing slash now */
82 base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
83 trim_string(base_directory, NULL, "/");
86 pvfs->base_directory = base_directory;
88 /* the directory must exist. Note that we deliberately don't
89 check that it is readable */
90 if (stat(pvfs->base_directory, &st) != 0 || !S_ISDIR(st.st_mode)) {
91 DEBUG(0,("pvfs_connect: '%s' is not a directory, when connecting to [%s]\n",
92 pvfs->base_directory, sharename));
93 return NT_STATUS_BAD_NETWORK_NAME;
96 tcon->fs_type = talloc_strdup(tcon, "NTFS");
97 tcon->dev_type = talloc_strdup(tcon, "A:");
99 ntvfs->private_data = pvfs;
101 pvfs->brl_context = brl_init(pvfs,
102 pvfs->tcon->smb_conn->connection->server_id,
104 pvfs->tcon->smb_conn->connection->messaging_ctx);
105 if (pvfs->brl_context == NULL) {
106 return NT_STATUS_INTERNAL_DB_CORRUPTION;
109 pvfs->odb_context = odb_init(pvfs,
110 pvfs->tcon->smb_conn->connection->server_id,
111 pvfs->tcon->smb_conn->connection->messaging_ctx);
112 if (pvfs->odb_context == NULL) {
113 return NT_STATUS_INTERNAL_DB_CORRUPTION;
116 /* allocate the fnum id -> ptr tree */
117 pvfs->idtree_fnum = idr_init(pvfs);
118 if (pvfs->idtree_fnum == NULL) {
119 return NT_STATUS_NO_MEMORY;
122 /* allocate the search handle -> ptr tree */
123 pvfs->idtree_search = idr_init(pvfs);
124 if (pvfs->idtree_search == NULL) {
125 return NT_STATUS_NO_MEMORY;
128 status = pvfs_mangle_init(pvfs);
129 if (!NT_STATUS_IS_OK(status)) {
133 pvfs_setup_options(pvfs);
136 /* who had the stupid idea to generate a signal on a large
137 file write instead of just failing it!? */
138 BlockSignals(True, SIGXFSZ);
145 disconnect from a share
147 static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs,
148 struct smbsrv_tcon *tcon)
154 check if a directory exists
156 static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
157 struct smbsrv_request *req, struct smb_chkpath *cp)
159 struct pvfs_state *pvfs = ntvfs->private_data;
160 struct pvfs_filename *name;
163 /* resolve the cifs name to a posix name */
164 status = pvfs_resolve_name(pvfs, req, cp->in.path,
165 PVFS_RESOLVE_NO_WILDCARD, &name);
166 if (!NT_STATUS_IS_OK(status)) {
171 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
174 if (!S_ISDIR(name->st.st_mode)) {
175 return NT_STATUS_NOT_A_DIRECTORY;
184 static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
185 struct smbsrv_request *req, struct smb_copy *cp)
187 DEBUG(0,("pvfs_copy not implemented\n"));
188 return NT_STATUS_NOT_SUPPORTED;
192 return print queue info
194 static NTSTATUS pvfs_lpq(struct ntvfs_module_context *ntvfs,
195 struct smbsrv_request *req, union smb_lpq *lpq)
197 return NT_STATUS_NOT_SUPPORTED;
200 /* SMBtrans - not used on file shares */
201 static NTSTATUS pvfs_trans(struct ntvfs_module_context *ntvfs,
202 struct smbsrv_request *req, struct smb_trans2 *trans2)
204 return NT_STATUS_ACCESS_DENIED;
208 initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
210 NTSTATUS ntvfs_posix_init(void)
213 struct ntvfs_ops ops;
217 ops.type = NTVFS_DISK;
219 /* fill in all the operations */
220 ops.connect = pvfs_connect;
221 ops.disconnect = pvfs_disconnect;
222 ops.unlink = pvfs_unlink;
223 ops.chkpath = pvfs_chkpath;
224 ops.qpathinfo = pvfs_qpathinfo;
225 ops.setpathinfo = pvfs_setpathinfo;
226 ops.openfile = pvfs_open;
227 ops.mkdir = pvfs_mkdir;
228 ops.rmdir = pvfs_rmdir;
229 ops.rename = pvfs_rename;
230 ops.copy = pvfs_copy;
231 ops.ioctl = pvfs_ioctl;
232 ops.read = pvfs_read;
233 ops.write = pvfs_write;
234 ops.seek = pvfs_seek;
235 ops.flush = pvfs_flush;
236 ops.close = pvfs_close;
237 ops.exit = pvfs_exit;
238 ops.lock = pvfs_lock;
239 ops.setfileinfo = pvfs_setfileinfo;
240 ops.qfileinfo = pvfs_qfileinfo;
241 ops.fsinfo = pvfs_fsinfo;
243 ops.search_first = pvfs_search_first;
244 ops.search_next = pvfs_search_next;
245 ops.search_close = pvfs_search_close;
246 ops.trans = pvfs_trans;
247 ops.logoff = pvfs_logoff;
248 ops.async_setup = pvfs_async_setup;
249 ops.cancel = pvfs_cancel;
251 /* register ourselves with the NTVFS subsystem. We register
252 under the name 'default' as we wish to be the default
253 backend, and also register as 'posix' */
254 ops.name = "default";
255 ret = ntvfs_register(&ops);
258 ret = ntvfs_register(&ops);
260 if (!NT_STATUS_IS_OK(ret)) {
261 DEBUG(0,("Failed to register POSIX backend!\n"));