source: vendor/3.5.4/source3/smbd/smb2_getinfo.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 11.8 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Core SMB2 server
4
5 Copyright (C) Stefan Metzmacher 2009
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#include "includes.h"
22#include "smbd/globals.h"
23#include "../libcli/smb/smb_common.h"
24
25static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
26 struct tevent_context *ev,
27 struct smbd_smb2_request *smb2req,
28 uint8_t in_info_type,
29 uint8_t in_file_info_class,
30 uint32_t in_output_buffer_length,
31 DATA_BLOB in_input_buffer,
32 uint32_t in_additional_information,
33 uint32_t in_flags,
34 uint64_t in_file_id_volatile);
35static NTSTATUS smbd_smb2_getinfo_recv(struct tevent_req *req,
36 TALLOC_CTX *mem_ctx,
37 DATA_BLOB *out_output_buffer);
38
39static void smbd_smb2_request_getinfo_done(struct tevent_req *subreq);
40NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req)
41{
42 const uint8_t *inhdr;
43 const uint8_t *inbody;
44 int i = req->current_idx;
45 size_t expected_body_size = 0x29;
46 size_t body_size;
47 uint8_t in_info_type;
48 uint8_t in_file_info_class;
49 uint32_t in_output_buffer_length;
50 uint16_t in_input_buffer_offset;
51 uint32_t in_input_buffer_length;
52 DATA_BLOB in_input_buffer;
53 uint32_t in_additional_information;
54 uint32_t in_flags;
55 uint64_t in_file_id_persistent;
56 uint64_t in_file_id_volatile;
57 struct tevent_req *subreq;
58
59 inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
60 if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
61 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
62 }
63
64 inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
65
66 body_size = SVAL(inbody, 0x00);
67 if (body_size != expected_body_size) {
68 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
69 }
70
71 in_info_type = CVAL(inbody, 0x02);
72 in_file_info_class = CVAL(inbody, 0x03);
73 in_output_buffer_length = IVAL(inbody, 0x04);
74 in_input_buffer_offset = SVAL(inbody, 0x08);
75 /* 0x0A 2 bytes reserved */
76 in_input_buffer_length = IVAL(inbody, 0x0C);
77 in_additional_information = IVAL(inbody, 0x10);
78 in_flags = IVAL(inbody, 0x14);
79 in_file_id_persistent = BVAL(inbody, 0x18);
80 in_file_id_volatile = BVAL(inbody, 0x20);
81
82 if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
83 /* This is ok */
84 } else if (in_input_buffer_offset !=
85 (SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) {
86 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
87 }
88
89 if (in_input_buffer_length > req->in.vector[i+2].iov_len) {
90 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
91 }
92
93 in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
94 in_input_buffer.length = in_input_buffer_length;
95
96 if (req->compat_chain_fsp) {
97 /* skip check */
98 } else if (in_file_id_persistent != 0) {
99 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
100 }
101
102 subreq = smbd_smb2_getinfo_send(req,
103 req->sconn->smb2.event_ctx,
104 req,
105 in_info_type,
106 in_file_info_class,
107 in_output_buffer_length,
108 in_input_buffer,
109 in_additional_information,
110 in_flags,
111 in_file_id_volatile);
112 if (subreq == NULL) {
113 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
114 }
115 tevent_req_set_callback(subreq, smbd_smb2_request_getinfo_done, req);
116
117 return smbd_smb2_request_pending_queue(req, subreq);
118}
119
120static void smbd_smb2_request_getinfo_done(struct tevent_req *subreq)
121{
122 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
123 struct smbd_smb2_request);
124 int i = req->current_idx;
125 uint8_t *outhdr;
126 DATA_BLOB outbody;
127 DATA_BLOB outdyn;
128 uint16_t out_output_buffer_offset;
129 DATA_BLOB out_output_buffer = data_blob_null;
130 NTSTATUS status;
131 NTSTATUS error; /* transport error */
132
133 status = smbd_smb2_getinfo_recv(subreq,
134 req,
135 &out_output_buffer);
136 TALLOC_FREE(subreq);
137 if (!NT_STATUS_IS_OK(status)) {
138 error = smbd_smb2_request_error(req, status);
139 if (!NT_STATUS_IS_OK(error)) {
140 smbd_server_connection_terminate(req->sconn,
141 nt_errstr(error));
142 return;
143 }
144 return;
145 }
146
147 out_output_buffer_offset = SMB2_HDR_BODY + 0x08;
148
149 outhdr = (uint8_t *)req->out.vector[i].iov_base;
150
151 outbody = data_blob_talloc(req->out.vector, NULL, 0x08);
152 if (outbody.data == NULL) {
153 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
154 if (!NT_STATUS_IS_OK(error)) {
155 smbd_server_connection_terminate(req->sconn,
156 nt_errstr(error));
157 return;
158 }
159 return;
160 }
161
162 SSVAL(outbody.data, 0x00, 0x08 + 1); /* struct size */
163 SSVAL(outbody.data, 0x02,
164 out_output_buffer_offset); /* output buffer offset */
165 SIVAL(outbody.data, 0x04,
166 out_output_buffer.length); /* output buffer length */
167
168 outdyn = out_output_buffer;
169
170 error = smbd_smb2_request_done(req, outbody, &outdyn);
171 if (!NT_STATUS_IS_OK(error)) {
172 smbd_server_connection_terminate(req->sconn,
173 nt_errstr(error));
174 return;
175 }
176}
177
178struct smbd_smb2_getinfo_state {
179 struct smbd_smb2_request *smb2req;
180 NTSTATUS status;
181 DATA_BLOB out_output_buffer;
182};
183
184static struct tevent_req *smbd_smb2_getinfo_send(TALLOC_CTX *mem_ctx,
185 struct tevent_context *ev,
186 struct smbd_smb2_request *smb2req,
187 uint8_t in_info_type,
188 uint8_t in_file_info_class,
189 uint32_t in_output_buffer_length,
190 DATA_BLOB in_input_buffer,
191 uint32_t in_additional_information,
192 uint32_t in_flags,
193 uint64_t in_file_id_volatile)
194{
195 struct tevent_req *req;
196 struct smbd_smb2_getinfo_state *state;
197 struct smb_request *smbreq;
198 connection_struct *conn = smb2req->tcon->compat_conn;
199 files_struct *fsp;
200
201 req = tevent_req_create(mem_ctx, &state,
202 struct smbd_smb2_getinfo_state);
203 if (req == NULL) {
204 return NULL;
205 }
206 state->smb2req = smb2req;
207 state->status = NT_STATUS_INTERNAL_ERROR;
208 state->out_output_buffer = data_blob_null;
209
210 DEBUG(10,("smbd_smb2_getinfo_send: file_id[0x%016llX]\n",
211 (unsigned long long)in_file_id_volatile));
212
213 smbreq = smbd_smb2_fake_smb_request(smb2req);
214 if (tevent_req_nomem(smbreq, req)) {
215 return tevent_req_post(req, ev);
216 }
217
218 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
219 if (fsp == NULL) {
220 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
221 return tevent_req_post(req, ev);
222 }
223 if (conn != fsp->conn) {
224 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
225 return tevent_req_post(req, ev);
226 }
227 if (smb2req->session->vuid != fsp->vuid) {
228 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
229 return tevent_req_post(req, ev);
230 }
231
232 if (IS_IPC(conn)) {
233 tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
234 return tevent_req_post(req, ev);
235 }
236
237 switch (in_info_type) {
238 case 0x01:/* SMB2_GETINFO_FILE */
239 {
240 uint16_t file_info_level;
241 char *data = NULL;
242 unsigned int data_size = 0;
243 bool delete_pending = false;
244 struct timespec write_time_ts;
245 struct file_id fileid;
246 struct ea_list *ea_list = NULL;
247 int lock_data_count = 0;
248 char *lock_data = NULL;
249 bool ms_dfs_link = false;
250 NTSTATUS status;
251
252 ZERO_STRUCT(write_time_ts);
253
254 switch (in_file_info_class) {
255 case 0x0F:/* RAW_FILEINFO_SMB2_ALL_EAS */
256 file_info_level = 0xFF00 | in_file_info_class;
257 break;
258
259 case 0x12:/* RAW_FILEINFO_SMB2_ALL_INFORMATION */
260 file_info_level = 0xFF00 | in_file_info_class;
261 break;
262
263 default:
264 /* the levels directly map to the passthru levels */
265 file_info_level = in_file_info_class + 1000;
266 break;
267 }
268
269 if (fsp->fake_file_handle) {
270 /*
271 * This is actually for the QUOTA_FAKE_FILE --metze
272 */
273
274 /* We know this name is ok, it's already passed the checks. */
275
276 } else if (fsp && (fsp->is_directory || fsp->fh->fd == -1)) {
277 /*
278 * This is actually a QFILEINFO on a directory
279 * handle (returned from an NT SMB). NT5.0 seems
280 * to do this call. JRA.
281 */
282
283 if (INFO_LEVEL_IS_UNIX(file_info_level)) {
284 /* Always do lstat for UNIX calls. */
285 if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
286 DEBUG(3,("smbd_smb2_getinfo_send: "
287 "SMB_VFS_LSTAT of %s failed "
288 "(%s)\n", fsp_str_dbg(fsp),
289 strerror(errno)));
290 status = map_nt_error_from_unix(errno);
291 tevent_req_nterror(req, status);
292 return tevent_req_post(req, ev);
293 }
294 } else if (SMB_VFS_STAT(conn, fsp->fsp_name)) {
295 DEBUG(3,("smbd_smb2_getinfo_send: "
296 "SMB_VFS_STAT of %s failed (%s)\n",
297 fsp_str_dbg(fsp),
298 strerror(errno)));
299 status = map_nt_error_from_unix(errno);
300 tevent_req_nterror(req, status);
301 return tevent_req_post(req, ev);
302 }
303
304 fileid = vfs_file_id_from_sbuf(conn,
305 &fsp->fsp_name->st);
306 get_file_infos(fileid, &delete_pending, &write_time_ts);
307 } else {
308 /*
309 * Original code - this is an open file.
310 */
311
312 if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
313 DEBUG(3, ("smbd_smb2_getinfo_send: "
314 "fstat of fnum %d failed (%s)\n",
315 fsp->fnum, strerror(errno)));
316 status = map_nt_error_from_unix(errno);
317 tevent_req_nterror(req, status);
318 return tevent_req_post(req, ev);
319 }
320 fileid = vfs_file_id_from_sbuf(conn,
321 &fsp->fsp_name->st);
322 get_file_infos(fileid, &delete_pending, &write_time_ts);
323 }
324
325 status = smbd_do_qfilepathinfo(conn, state,
326 file_info_level,
327 fsp,
328 fsp->fsp_name,
329 delete_pending,
330 write_time_ts,
331 ms_dfs_link,
332 ea_list,
333 lock_data_count,
334 lock_data,
335 STR_UNICODE,
336 in_output_buffer_length,
337 &data,
338 &data_size);
339 if (!NT_STATUS_IS_OK(status)) {
340 SAFE_FREE(data);
341 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
342 status = NT_STATUS_INVALID_INFO_CLASS;
343 }
344 tevent_req_nterror(req, status);
345 return tevent_req_post(req, ev);
346 }
347 if (data_size > 0) {
348 state->out_output_buffer = data_blob_talloc(state,
349 data,
350 data_size);
351 SAFE_FREE(data);
352 if (tevent_req_nomem(state->out_output_buffer.data, req)) {
353 return tevent_req_post(req, ev);
354 }
355 }
356 SAFE_FREE(data);
357 break;
358 }
359
360 case 0x02:/* SMB2_GETINFO_FS */
361 {
362 uint16_t file_info_level;
363 char *data = NULL;
364 int data_size = 0;
365 NTSTATUS status;
366
367 /* the levels directly map to the passthru levels */
368 file_info_level = in_file_info_class + 1000;
369
370 status = smbd_do_qfsinfo(conn, state,
371 file_info_level,
372 STR_UNICODE,
373 in_output_buffer_length,
374 &data,
375 &data_size);
376 if (!NT_STATUS_IS_OK(status)) {
377 SAFE_FREE(data);
378 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
379 status = NT_STATUS_INVALID_INFO_CLASS;
380 }
381 tevent_req_nterror(req, status);
382 return tevent_req_post(req, ev);
383 }
384 if (data_size > 0) {
385 state->out_output_buffer = data_blob_talloc(state,
386 data,
387 data_size);
388 SAFE_FREE(data);
389 if (tevent_req_nomem(state->out_output_buffer.data, req)) {
390 return tevent_req_post(req, ev);
391 }
392 }
393 SAFE_FREE(data);
394 break;
395 }
396
397 default:
398 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
399 return tevent_req_post(req, ev);
400 }
401
402 tevent_req_done(req);
403 return tevent_req_post(req, ev);
404}
405
406static NTSTATUS smbd_smb2_getinfo_recv(struct tevent_req *req,
407 TALLOC_CTX *mem_ctx,
408 DATA_BLOB *out_output_buffer)
409{
410 NTSTATUS status;
411 struct smbd_smb2_getinfo_state *state = tevent_req_data(req,
412 struct smbd_smb2_getinfo_state);
413
414 if (tevent_req_is_nterror(req, &status)) {
415 tevent_req_received(req);
416 return status;
417 }
418
419 *out_output_buffer = state->out_output_buffer;
420 talloc_steal(mem_ctx, out_output_buffer->data);
421
422 tevent_req_received(req);
423 return NT_STATUS_OK;
424}
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