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dsdb-descriptor: get_default_group() should always return the DAG sid (bug #9481)
[Samba/gebeck_regimport.git] / source4 / smb_server / smb / trans2.c
blob89402bac82039be4c5167b9e64ef5c16c44a45cf
1 /*
2 Unix SMB/CIFS implementation.
3 transaction2 handling
4 Copyright (C) Andrew Tridgell 2003
5 Copyright Matthieu Patou <mat@matws.net> 2010-2011
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 This file handles the parsing of transact2 requests
22 */
23
24 #include "includes.h"
25 #include "smbd/service_stream.h"
26 #include "smb_server/smb_server.h"
27 #include "ntvfs/ntvfs.h"
28 #include "libcli/raw/libcliraw.h"
29 #include "libcli/raw/raw_proto.h"
30 #include "librpc/gen_ndr/dfsblobs.h"
31 #include "librpc/gen_ndr/ndr_dfsblobs.h"
32 #include "dsdb/samdb/samdb.h"
33 #include "auth/session.h"
34 #include "param/param.h"
35 #include "lib/tsocket/tsocket.h"
36 #include "dfs_server/dfs_server_ad.h"
37
38 #define MAX_DFS_RESPONSE 56*1024 /* 56 Kb */
39
40 #define TRANS2_CHECK_ASYNC_STATUS_SIMPLE do { \
41 if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) { \
42 trans2_setup_reply(trans, 0, 0, 0);\
43 return req->ntvfs->async_states->status; \
44 } \
45 } while (0)
46 #define TRANS2_CHECK_ASYNC_STATUS(ptr, type) do { \
47 TRANS2_CHECK_ASYNC_STATUS_SIMPLE; \
48 ptr = talloc_get_type(op->op_info, type); \
49 } while (0)
50 #define TRANS2_CHECK(cmd) do { \
51 NTSTATUS _status; \
52 _status = cmd; \
53 NT_STATUS_NOT_OK_RETURN(_status); \
54 } while (0)
55
56 /*
57 hold the state of a nttrans op while in progress. Needed to allow for async backend
58 functions.
59 */
60 struct trans_op {
61 struct smbsrv_request *req;
62 struct smb_trans2 *trans;
63 uint8_t command;
64 NTSTATUS (*send_fn)(struct trans_op *);
65 void *op_info;
66 };
67
68 #define CHECK_MIN_BLOB_SIZE(blob, size) do { \
69 if ((blob)->length < (size)) { \
70 return NT_STATUS_INFO_LENGTH_MISMATCH; \
71 }} while (0)
72
73 /* setup a trans2 reply, given the data and params sizes */
74 static NTSTATUS trans2_setup_reply(struct smb_trans2 *trans,
75 uint16_t param_size, uint16_t data_size,
76 uint8_t setup_count)
77 {
78 trans->out.setup_count = setup_count;
79 if (setup_count > 0) {
80 trans->out.setup = talloc_zero_array(trans, uint16_t, setup_count);
81 NT_STATUS_HAVE_NO_MEMORY(trans->out.setup);
82 }
83 trans->out.params = data_blob_talloc(trans, NULL, param_size);
84 if (param_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
85
86 trans->out.data = data_blob_talloc(trans, NULL, data_size);
87 if (data_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data);
88
89 return NT_STATUS_OK;
90 }
91
92 static NTSTATUS trans2_push_fsinfo(struct smbsrv_connection *smb_conn,
93 TALLOC_CTX *mem_ctx,
94 DATA_BLOB *blob,
95 union smb_fsinfo *fsinfo,
96 int default_str_flags)
97 {
98 enum smb_fsinfo_level passthru_level;
99
100 switch (fsinfo->generic.level) {
101 case RAW_QFS_ALLOCATION:
102 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 18));
103
104 SIVAL(blob->data, 0, fsinfo->allocation.out.fs_id);
105 SIVAL(blob->data, 4, fsinfo->allocation.out.sectors_per_unit);
106 SIVAL(blob->data, 8, fsinfo->allocation.out.total_alloc_units);
107 SIVAL(blob->data, 12, fsinfo->allocation.out.avail_alloc_units);
108 SSVAL(blob->data, 16, fsinfo->allocation.out.bytes_per_sector);
109
110 return NT_STATUS_OK;
111
112 case RAW_QFS_VOLUME:
113 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 5));
114
115 SIVAL(blob->data, 0, fsinfo->volume.out.serial_number);
116 /* w2k3 implements this incorrectly for unicode - it
117 * leaves the last byte off the string */
118 TRANS2_CHECK(smbsrv_blob_append_string(mem_ctx, blob,
119 fsinfo->volume.out.volume_name.s,
120 4, default_str_flags,
121 STR_LEN8BIT|STR_NOALIGN));
122
123 return NT_STATUS_OK;
124
125 case RAW_QFS_VOLUME_INFO:
126 passthru_level = RAW_QFS_VOLUME_INFORMATION;
127 break;
128
129 case RAW_QFS_SIZE_INFO:
130 passthru_level = RAW_QFS_SIZE_INFORMATION;
131 break;
132
133 case RAW_QFS_DEVICE_INFO:
134 passthru_level = RAW_QFS_DEVICE_INFORMATION;
135 break;
136
137 case RAW_QFS_ATTRIBUTE_INFO:
138 passthru_level = RAW_QFS_ATTRIBUTE_INFORMATION;
139 break;
140
141 default:
142 passthru_level = fsinfo->generic.level;
143 break;
144 }
145
146 return smbsrv_push_passthru_fsinfo(mem_ctx, blob,
147 passthru_level, fsinfo,
148 default_str_flags);
149 }
150
151 /*
152 trans2 qfsinfo implementation send
153 */
154 static NTSTATUS trans2_qfsinfo_send(struct trans_op *op)
155 {
156 struct smbsrv_request *req = op->req;
157 struct smb_trans2 *trans = op->trans;
158 union smb_fsinfo *fsinfo;
159
160 TRANS2_CHECK_ASYNC_STATUS(fsinfo, union smb_fsinfo);
161
162 TRANS2_CHECK(trans2_setup_reply(trans, 0, 0, 0));
163
164 TRANS2_CHECK(trans2_push_fsinfo(req->smb_conn, trans,
165 &trans->out.data, fsinfo,
166 SMBSRV_REQ_DEFAULT_STR_FLAGS(req)));
167
168 return NT_STATUS_OK;
169 }
170
171 /*
172 trans2 qfsinfo implementation
173 */
174 static NTSTATUS trans2_qfsinfo(struct smbsrv_request *req, struct trans_op *op)
175 {
176 struct smb_trans2 *trans = op->trans;
177 union smb_fsinfo *fsinfo;
178 uint16_t level;
179
180 /* make sure we got enough parameters */
181 if (trans->in.params.length != 2) {
182 return NT_STATUS_FOOBAR;
183 }
184
185 fsinfo = talloc(op, union smb_fsinfo);
186 NT_STATUS_HAVE_NO_MEMORY(fsinfo);
187
188 level = SVAL(trans->in.params.data, 0);
189
190 /* work out the backend level - we make it 1-1 in the header */
191 fsinfo->generic.level = (enum smb_fsinfo_level)level;
192 if (fsinfo->generic.level >= RAW_QFS_GENERIC) {
193 return NT_STATUS_INVALID_LEVEL;
194 }
195
196 op->op_info = fsinfo;
197 op->send_fn = trans2_qfsinfo_send;
198
199 return ntvfs_fsinfo(req->ntvfs, fsinfo);
200 }
201
202
203 /*
204 trans2 open implementation send
205 */
206 static NTSTATUS trans2_open_send(struct trans_op *op)
207 {
208 struct smbsrv_request *req = op->req;
209 struct smb_trans2 *trans = op->trans;
210 union smb_open *io;
211
212 TRANS2_CHECK_ASYNC_STATUS(io, union smb_open);
213
214 TRANS2_CHECK(trans2_setup_reply(trans, 30, 0, 0));
215
216 smbsrv_push_fnum(trans->out.params.data, VWV(0), io->t2open.out.file.ntvfs);
217 SSVAL(trans->out.params.data, VWV(1), io->t2open.out.attrib);
218 srv_push_dos_date3(req->smb_conn, trans->out.params.data,
219 VWV(2), io->t2open.out.write_time);
220 SIVAL(trans->out.params.data, VWV(4), io->t2open.out.size);
221 SSVAL(trans->out.params.data, VWV(6), io->t2open.out.access);
222 SSVAL(trans->out.params.data, VWV(7), io->t2open.out.ftype);
223 SSVAL(trans->out.params.data, VWV(8), io->t2open.out.devstate);
224 SSVAL(trans->out.params.data, VWV(9), io->t2open.out.action);
225 SIVAL(trans->out.params.data, VWV(10), 0); /* reserved */
226 SSVAL(trans->out.params.data, VWV(12), 0); /* EaErrorOffset */
227 SIVAL(trans->out.params.data, VWV(13), 0); /* EaLength */
228
229 return NT_STATUS_OK;
230 }
231
232 /*
233 trans2 open implementation
234 */
235 static NTSTATUS trans2_open(struct smbsrv_request *req, struct trans_op *op)
236 {
237 struct smb_trans2 *trans = op->trans;
238 union smb_open *io;
239
240 /* make sure we got enough parameters */
241 if (trans->in.params.length < 29) {
242 return NT_STATUS_FOOBAR;
243 }
244
245 io = talloc(op, union smb_open);
246 NT_STATUS_HAVE_NO_MEMORY(io);
247
248 io->t2open.level = RAW_OPEN_T2OPEN;
249 io->t2open.in.flags = SVAL(trans->in.params.data, VWV(0));
250 io->t2open.in.open_mode = SVAL(trans->in.params.data, VWV(1));
251 io->t2open.in.search_attrs = SVAL(trans->in.params.data, VWV(2));
252 io->t2open.in.file_attrs = SVAL(trans->in.params.data, VWV(3));
253 io->t2open.in.write_time = srv_pull_dos_date(req->smb_conn,
254 trans->in.params.data + VWV(4));
255 io->t2open.in.open_func = SVAL(trans->in.params.data, VWV(6));
256 io->t2open.in.size = IVAL(trans->in.params.data, VWV(7));
257 io->t2open.in.timeout = IVAL(trans->in.params.data, VWV(9));
258 io->t2open.in.num_eas = 0;
259 io->t2open.in.eas = NULL;
260
261 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 28, &io->t2open.in.fname, 0);
262 if (io->t2open.in.fname == NULL) {
263 return NT_STATUS_FOOBAR;
264 }
265
266 TRANS2_CHECK(ea_pull_list(&trans->in.data, io, &io->t2open.in.num_eas, &io->t2open.in.eas));
267
268 op->op_info = io;
269 op->send_fn = trans2_open_send;
270
271 return ntvfs_open(req->ntvfs, io);
272 }
273
274
275 /*
276 trans2 simple send
277 */
278 static NTSTATUS trans2_simple_send(struct trans_op *op)
279 {
280 struct smbsrv_request *req = op->req;
281 struct smb_trans2 *trans = op->trans;
282
283 TRANS2_CHECK_ASYNC_STATUS_SIMPLE;
284
285 TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0));
286
287 SSVAL(trans->out.params.data, VWV(0), 0);
288
289 return NT_STATUS_OK;
290 }
291
292 /*
293 trans2 mkdir implementation
294 */
295 static NTSTATUS trans2_mkdir(struct smbsrv_request *req, struct trans_op *op)
296 {
297 struct smb_trans2 *trans = op->trans;
298 union smb_mkdir *io;
299
300 /* make sure we got enough parameters */
301 if (trans->in.params.length < 5) {
302 return NT_STATUS_FOOBAR;
303 }
304
305 io = talloc(op, union smb_mkdir);
306 NT_STATUS_HAVE_NO_MEMORY(io);
307
308 io->t2mkdir.level = RAW_MKDIR_T2MKDIR;
309 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 4, &io->t2mkdir.in.path, 0);
310 if (io->t2mkdir.in.path == NULL) {
311 return NT_STATUS_FOOBAR;
312 }
313
314 TRANS2_CHECK(ea_pull_list(&trans->in.data, io,
315 &io->t2mkdir.in.num_eas,
316 &io->t2mkdir.in.eas));
317
318 op->op_info = io;
319 op->send_fn = trans2_simple_send;
320
321 return ntvfs_mkdir(req->ntvfs, io);
322 }
323
324 static NTSTATUS trans2_push_fileinfo(struct smbsrv_connection *smb_conn,
325 TALLOC_CTX *mem_ctx,
326 DATA_BLOB *blob,
327 union smb_fileinfo *st,
328 int default_str_flags)
329 {
330 uint32_t list_size;
331 enum smb_fileinfo_level passthru_level;
332
333 switch (st->generic.level) {
334 case RAW_FILEINFO_GENERIC:
335 case RAW_FILEINFO_GETATTR:
336 case RAW_FILEINFO_GETATTRE:
337 case RAW_FILEINFO_SEC_DESC:
338 case RAW_FILEINFO_SMB2_ALL_EAS:
339 case RAW_FILEINFO_SMB2_ALL_INFORMATION:
340 /* handled elsewhere */
341 return NT_STATUS_INVALID_LEVEL;
342
343 case RAW_FILEINFO_UNIX_BASIC:
344 case RAW_FILEINFO_UNIX_LINK:
345 /* not implemented yet */
346 return NT_STATUS_INVALID_LEVEL;
347
348 case RAW_FILEINFO_STANDARD:
349 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 22));
350
351 srv_push_dos_date2(smb_conn, blob->data, 0, st->standard.out.create_time);
352 srv_push_dos_date2(smb_conn, blob->data, 4, st->standard.out.access_time);
353 srv_push_dos_date2(smb_conn, blob->data, 8, st->standard.out.write_time);
354 SIVAL(blob->data, 12, st->standard.out.size);
355 SIVAL(blob->data, 16, st->standard.out.alloc_size);
356 SSVAL(blob->data, 20, st->standard.out.attrib);
357 return NT_STATUS_OK;
358
359 case RAW_FILEINFO_EA_SIZE:
360 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 26));
361
362 srv_push_dos_date2(smb_conn, blob->data, 0, st->ea_size.out.create_time);
363 srv_push_dos_date2(smb_conn, blob->data, 4, st->ea_size.out.access_time);
364 srv_push_dos_date2(smb_conn, blob->data, 8, st->ea_size.out.write_time);
365 SIVAL(blob->data, 12, st->ea_size.out.size);
366 SIVAL(blob->data, 16, st->ea_size.out.alloc_size);
367 SSVAL(blob->data, 20, st->ea_size.out.attrib);
368 SIVAL(blob->data, 22, st->ea_size.out.ea_size);
369 return NT_STATUS_OK;
370
371 case RAW_FILEINFO_EA_LIST:
372 list_size = ea_list_size(st->ea_list.out.num_eas,
373 st->ea_list.out.eas);
374 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size));
375
376 ea_put_list(blob->data,
377 st->ea_list.out.num_eas, st->ea_list.out.eas);
378 return NT_STATUS_OK;
379
380 case RAW_FILEINFO_ALL_EAS:
381 list_size = ea_list_size(st->all_eas.out.num_eas,
382 st->all_eas.out.eas);
383 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size));
384
385 ea_put_list(blob->data,
386 st->all_eas.out.num_eas, st->all_eas.out.eas);
387 return NT_STATUS_OK;
388
389 case RAW_FILEINFO_IS_NAME_VALID:
390 return NT_STATUS_OK;
391
392 case RAW_FILEINFO_BASIC_INFO:
393 passthru_level = RAW_FILEINFO_BASIC_INFORMATION;
394 break;
395
396 case RAW_FILEINFO_STANDARD_INFO:
397 passthru_level = RAW_FILEINFO_STANDARD_INFORMATION;
398 break;
399
400 case RAW_FILEINFO_EA_INFO:
401 passthru_level = RAW_FILEINFO_EA_INFORMATION;
402 break;
403
404 case RAW_FILEINFO_COMPRESSION_INFO:
405 passthru_level = RAW_FILEINFO_COMPRESSION_INFORMATION;
406 break;
407
408 case RAW_FILEINFO_ALL_INFO:
409 passthru_level = RAW_FILEINFO_ALL_INFORMATION;
410 break;
411
412 case RAW_FILEINFO_NAME_INFO:
413 passthru_level = RAW_FILEINFO_NAME_INFORMATION;
414 break;
415
416 case RAW_FILEINFO_ALT_NAME_INFO:
417 passthru_level = RAW_FILEINFO_ALT_NAME_INFORMATION;
418 break;
419
420 case RAW_FILEINFO_STREAM_INFO:
421 passthru_level = RAW_FILEINFO_STREAM_INFORMATION;
422 break;
423
424 default:
425 passthru_level = st->generic.level;
426 break;
427 }
428
429 return smbsrv_push_passthru_fileinfo(mem_ctx, blob,
430 passthru_level, st,
431 default_str_flags);
432 }
433
434 /*
435 fill in the reply from a qpathinfo or qfileinfo call
436 */
437 static NTSTATUS trans2_fileinfo_send(struct trans_op *op)
438 {
439 struct smbsrv_request *req = op->req;
440 struct smb_trans2 *trans = op->trans;
441 union smb_fileinfo *st;
442
443 TRANS2_CHECK_ASYNC_STATUS(st, union smb_fileinfo);
444
445 TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0));
446 SSVAL(trans->out.params.data, 0, 0);
447
448 TRANS2_CHECK(trans2_push_fileinfo(req->smb_conn, trans,
449 &trans->out.data, st,
450 SMBSRV_REQ_DEFAULT_STR_FLAGS(req)));
451
452 return NT_STATUS_OK;
453 }
454
455 /*
456 trans2 qpathinfo implementation
457 */
458 static NTSTATUS trans2_qpathinfo(struct smbsrv_request *req, struct trans_op *op)
459 {
460 struct smb_trans2 *trans = op->trans;
461 union smb_fileinfo *st;
462 uint16_t level;
463
464 /* make sure we got enough parameters */
465 if (trans->in.params.length < 2) {
466 return NT_STATUS_FOOBAR;
467 }
468
469 st = talloc(op, union smb_fileinfo);
470 NT_STATUS_HAVE_NO_MEMORY(st);
471
472 level = SVAL(trans->in.params.data, 0);
473
474 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0);
475 if (st->generic.in.file.path == NULL) {
476 return NT_STATUS_FOOBAR;
477 }
478
479 /* work out the backend level - we make it 1-1 in the header */
480 st->generic.level = (enum smb_fileinfo_level)level;
481 if (st->generic.level >= RAW_FILEINFO_GENERIC) {
482 return NT_STATUS_INVALID_LEVEL;
483 }
484
485 if (st->generic.level == RAW_FILEINFO_EA_LIST) {
486 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
487 &st->ea_list.in.num_names,
488 &st->ea_list.in.ea_names));
489 }
490
491 op->op_info = st;
492 op->send_fn = trans2_fileinfo_send;
493
494 return ntvfs_qpathinfo(req->ntvfs, st);
495 }
496
497
498 /*
499 trans2 qpathinfo implementation
500 */
501 static NTSTATUS trans2_qfileinfo(struct smbsrv_request *req, struct trans_op *op)
502 {
503 struct smb_trans2 *trans = op->trans;
504 union smb_fileinfo *st;
505 uint16_t level;
506 struct ntvfs_handle *h;
507
508 /* make sure we got enough parameters */
509 if (trans->in.params.length < 4) {
510 return NT_STATUS_FOOBAR;
511 }
512
513 st = talloc(op, union smb_fileinfo);
514 NT_STATUS_HAVE_NO_MEMORY(st);
515
516 h = smbsrv_pull_fnum(req, trans->in.params.data, 0);
517 level = SVAL(trans->in.params.data, 2);
518
519 st->generic.in.file.ntvfs = h;
520 /* work out the backend level - we make it 1-1 in the header */
521 st->generic.level = (enum smb_fileinfo_level)level;
522 if (st->generic.level >= RAW_FILEINFO_GENERIC) {
523 return NT_STATUS_INVALID_LEVEL;
524 }
525
526 if (st->generic.level == RAW_FILEINFO_EA_LIST) {
527 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
528 &st->ea_list.in.num_names,
529 &st->ea_list.in.ea_names));
530 }
531
532 op->op_info = st;
533 op->send_fn = trans2_fileinfo_send;
534
535 SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs);
536 return ntvfs_qfileinfo(req->ntvfs, st);
537 }
538
539
540 /*
541 parse a trans2 setfileinfo/setpathinfo data blob
542 */
543 static NTSTATUS trans2_parse_sfileinfo(struct smbsrv_request *req,
544 union smb_setfileinfo *st,
545 const DATA_BLOB *blob)
546 {
547 enum smb_setfileinfo_level passthru_level;
548
549 switch (st->generic.level) {
550 case RAW_SFILEINFO_GENERIC:
551 case RAW_SFILEINFO_SETATTR:
552 case RAW_SFILEINFO_SETATTRE:
553 case RAW_SFILEINFO_SEC_DESC:
554 /* handled elsewhere */
555 return NT_STATUS_INVALID_LEVEL;
556
557 case RAW_SFILEINFO_STANDARD:
558 CHECK_MIN_BLOB_SIZE(blob, 12);
559
560 st->standard.in.create_time = srv_pull_dos_date2(req->smb_conn, blob->data + 0);
561 st->standard.in.access_time = srv_pull_dos_date2(req->smb_conn, blob->data + 4);
562 st->standard.in.write_time = srv_pull_dos_date2(req->smb_conn, blob->data + 8);
563
564 return NT_STATUS_OK;
565
566 case RAW_SFILEINFO_EA_SET:
567 return ea_pull_list(blob, req,
568 &st->ea_set.in.num_eas,
569 &st->ea_set.in.eas);
570
571 case SMB_SFILEINFO_BASIC_INFO:
572 case SMB_SFILEINFO_BASIC_INFORMATION:
573 passthru_level = SMB_SFILEINFO_BASIC_INFORMATION;
574 break;
575
576 case SMB_SFILEINFO_DISPOSITION_INFO:
577 case SMB_SFILEINFO_DISPOSITION_INFORMATION:
578 passthru_level = SMB_SFILEINFO_DISPOSITION_INFORMATION;
579 break;
580
581 case SMB_SFILEINFO_ALLOCATION_INFO:
582 case SMB_SFILEINFO_ALLOCATION_INFORMATION:
583 passthru_level = SMB_SFILEINFO_ALLOCATION_INFORMATION;
584 break;
585
586 case RAW_SFILEINFO_END_OF_FILE_INFO:
587 case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
588 passthru_level = RAW_SFILEINFO_END_OF_FILE_INFORMATION;
589 break;
590
591 case RAW_SFILEINFO_RENAME_INFORMATION:
592 case RAW_SFILEINFO_POSITION_INFORMATION:
593 case RAW_SFILEINFO_MODE_INFORMATION:
594 passthru_level = st->generic.level;
595 break;
596
597 case RAW_SFILEINFO_UNIX_BASIC:
598 case RAW_SFILEINFO_UNIX_LINK:
599 case RAW_SFILEINFO_UNIX_HLINK:
600 case RAW_SFILEINFO_PIPE_INFORMATION:
601 case RAW_SFILEINFO_VALID_DATA_INFORMATION:
602 case RAW_SFILEINFO_SHORT_NAME_INFORMATION:
603 case RAW_SFILEINFO_1025:
604 case RAW_SFILEINFO_1027:
605 case RAW_SFILEINFO_1029:
606 case RAW_SFILEINFO_1030:
607 case RAW_SFILEINFO_1031:
608 case RAW_SFILEINFO_1032:
609 case RAW_SFILEINFO_1036:
610 case RAW_SFILEINFO_1041:
611 case RAW_SFILEINFO_1042:
612 case RAW_SFILEINFO_1043:
613 case RAW_SFILEINFO_1044:
614 return NT_STATUS_INVALID_LEVEL;
615
616 default:
617 /* we need a default here to cope with invalid values on the wire */
618 return NT_STATUS_INVALID_LEVEL;
619 }
620
621 return smbsrv_pull_passthru_sfileinfo(st, passthru_level, st,
622 blob, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
623 &req->in.bufinfo);
624 }
625
626 /*
627 trans2 setfileinfo implementation
628 */
629 static NTSTATUS trans2_setfileinfo(struct smbsrv_request *req, struct trans_op *op)
630 {
631 struct smb_trans2 *trans = op->trans;
632 union smb_setfileinfo *st;
633 uint16_t level;
634 struct ntvfs_handle *h;
635
636 /* make sure we got enough parameters */
637 if (trans->in.params.length < 4) {
638 return NT_STATUS_FOOBAR;
639 }
640
641 st = talloc(op, union smb_setfileinfo);
642 NT_STATUS_HAVE_NO_MEMORY(st);
643
644 h = smbsrv_pull_fnum(req, trans->in.params.data, 0);
645 level = SVAL(trans->in.params.data, 2);
646
647 st->generic.in.file.ntvfs = h;
648 /* work out the backend level - we make it 1-1 in the header */
649 st->generic.level = (enum smb_setfileinfo_level)level;
650 if (st->generic.level >= RAW_SFILEINFO_GENERIC) {
651 return NT_STATUS_INVALID_LEVEL;
652 }
653
654 TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data));
655
656 op->op_info = st;
657 op->send_fn = trans2_simple_send;
658
659 SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs);
660 return ntvfs_setfileinfo(req->ntvfs, st);
661 }
662
663 /*
664 trans2 setpathinfo implementation
665 */
666 static NTSTATUS trans2_setpathinfo(struct smbsrv_request *req, struct trans_op *op)
667 {
668 struct smb_trans2 *trans = op->trans;
669 union smb_setfileinfo *st;
670 uint16_t level;
671
672 /* make sure we got enough parameters */
673 if (trans->in.params.length < 4) {
674 return NT_STATUS_FOOBAR;
675 }
676
677 st = talloc(op, union smb_setfileinfo);
678 NT_STATUS_HAVE_NO_MEMORY(st);
679
680 level = SVAL(trans->in.params.data, 0);
681
682 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0);
683 if (st->generic.in.file.path == NULL) {
684 return NT_STATUS_FOOBAR;
685 }
686
687 /* work out the backend level - we make it 1-1 in the header */
688 st->generic.level = (enum smb_setfileinfo_level)level;
689 if (st->generic.level >= RAW_SFILEINFO_GENERIC) {
690 return NT_STATUS_INVALID_LEVEL;
691 }
692
693 TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data));
694
695 op->op_info = st;
696 op->send_fn = trans2_simple_send;
697
698 return ntvfs_setpathinfo(req->ntvfs, st);
699 }
700
701
702 /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */
703 struct find_state {
704 struct trans_op *op;
705 void *search;
706 enum smb_search_data_level data_level;
707 uint16_t last_entry_offset;
708 uint16_t flags;
709 };
710
711 /*
712 fill a single entry in a trans2 find reply
713 */
714 static NTSTATUS find_fill_info(struct find_state *state,
715 const union smb_search_data *file)
716 {
717 struct smbsrv_request *req = state->op->req;
718 struct smb_trans2 *trans = state->op->trans;
719 uint8_t *data;
720 unsigned int ofs = trans->out.data.length;
721 uint32_t ea_size;
722
723 switch (state->data_level) {
724 case RAW_SEARCH_DATA_GENERIC:
725 case RAW_SEARCH_DATA_SEARCH:
726 /* handled elsewhere */
727 return NT_STATUS_INVALID_LEVEL;
728
729 case RAW_SEARCH_DATA_STANDARD:
730 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
731 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27));
732 SIVAL(trans->out.data.data, ofs, file->standard.resume_key);
733 ofs += 4;
734 } else {
735 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23));
736 }
737 data = trans->out.data.data + ofs;
738 srv_push_dos_date2(req->smb_conn, data, 0, file->standard.create_time);
739 srv_push_dos_date2(req->smb_conn, data, 4, file->standard.access_time);
740 srv_push_dos_date2(req->smb_conn, data, 8, file->standard.write_time);
741 SIVAL(data, 12, file->standard.size);
742 SIVAL(data, 16, file->standard.alloc_size);
743 SSVAL(data, 20, file->standard.attrib);
744 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->standard.name.s,
745 ofs + 22, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
746 STR_LEN8BIT | STR_TERMINATE | STR_LEN_NOTERM));
747 break;
748
749 case RAW_SEARCH_DATA_EA_SIZE:
750 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
751 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 31));
752 SIVAL(trans->out.data.data, ofs, file->ea_size.resume_key);
753 ofs += 4;
754 } else {
755 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27));
756 }
757 data = trans->out.data.data + ofs;
758 srv_push_dos_date2(req->smb_conn, data, 0, file->ea_size.create_time);
759 srv_push_dos_date2(req->smb_conn, data, 4, file->ea_size.access_time);
760 srv_push_dos_date2(req->smb_conn, data, 8, file->ea_size.write_time);
761 SIVAL(data, 12, file->ea_size.size);
762 SIVAL(data, 16, file->ea_size.alloc_size);
763 SSVAL(data, 20, file->ea_size.attrib);
764 SIVAL(data, 22, file->ea_size.ea_size);
765 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_size.name.s,
766 ofs + 26, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
767 STR_LEN8BIT | STR_NOALIGN));
768 TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1));
769 break;
770
771 case RAW_SEARCH_DATA_EA_LIST:
772 ea_size = ea_list_size(file->ea_list.eas.num_eas, file->ea_list.eas.eas);
773 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
774 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27 + ea_size));
775 SIVAL(trans->out.data.data, ofs, file->ea_list.resume_key);
776 ofs += 4;
777 } else {
778 TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23 + ea_size));
779 }
780 data = trans->out.data.data + ofs;
781 srv_push_dos_date2(req->smb_conn, data, 0, file->ea_list.create_time);
782 srv_push_dos_date2(req->smb_conn, data, 4, file->ea_list.access_time);
783 srv_push_dos_date2(req->smb_conn, data, 8, file->ea_list.write_time);
784 SIVAL(data, 12, file->ea_list.size);
785 SIVAL(data, 16, file->ea_list.alloc_size);
786 SSVAL(data, 20, file->ea_list.attrib);
787 ea_put_list(data+22, file->ea_list.eas.num_eas, file->ea_list.eas.eas);
788 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_list.name.s,
789 ofs + 22 + ea_size, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
790 STR_LEN8BIT | STR_NOALIGN));
791 TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1));
792 break;
793
794 case RAW_SEARCH_DATA_DIRECTORY_INFO:
795 case RAW_SEARCH_DATA_FULL_DIRECTORY_INFO:
796 case RAW_SEARCH_DATA_NAME_INFO:
797 case RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO:
798 case RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO:
799 case RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO:
800 return smbsrv_push_passthru_search(trans, &trans->out.data, state->data_level, file,
801 SMBSRV_REQ_DEFAULT_STR_FLAGS(req));
802
803 case RAW_SEARCH_DATA_UNIX_INFO:
804 case RAW_SEARCH_DATA_UNIX_INFO2:
805 return NT_STATUS_INVALID_LEVEL;
806 }
807
808 return NT_STATUS_OK;
809 }
810
811 /* callback function for trans2 findfirst/findnext */
812 static bool find_callback(void *private_data, const union smb_search_data *file)
813 {
814 struct find_state *state = talloc_get_type(private_data, struct find_state);
815 struct smb_trans2 *trans = state->op->trans;
816 unsigned int old_length;
817
818 old_length = trans->out.data.length;
819
820 if (!NT_STATUS_IS_OK(find_fill_info(state, file)) ||
821 trans->out.data.length > trans->in.max_data) {
822 /* restore the old length and tell the backend to stop */
823 smbsrv_blob_grow_data(trans, &trans->out.data, old_length);
824 return false;
825 }
826
827 state->last_entry_offset = old_length;
828 return true;
829 }
830
831 /*
832 trans2 findfirst send
833 */
834 static NTSTATUS trans2_findfirst_send(struct trans_op *op)
835 {
836 struct smbsrv_request *req = op->req;
837 struct smb_trans2 *trans = op->trans;
838 union smb_search_first *search;
839 struct find_state *state;
840 uint8_t *param;
841
842 TRANS2_CHECK_ASYNC_STATUS(state, struct find_state);
843 search = talloc_get_type(state->search, union smb_search_first);
844
845 /* fill in the findfirst reply header */
846 param = trans->out.params.data;
847 SSVAL(param, VWV(0), search->t2ffirst.out.handle);
848 SSVAL(param, VWV(1), search->t2ffirst.out.count);
849 SSVAL(param, VWV(2), search->t2ffirst.out.end_of_search);
850 SSVAL(param, VWV(3), 0);
851 SSVAL(param, VWV(4), state->last_entry_offset);
852
853 return NT_STATUS_OK;
854 }
855
856 /*
857 trans2 getdfsreferral implementation
858 */
859 static NTSTATUS trans2_getdfsreferral(struct smbsrv_request *req,
860 struct trans_op *op)
861 {
862 enum ndr_err_code ndr_err;
863 struct smb_trans2 *trans = op->trans;
864 struct ldb_context *ldb;
865 struct loadparm_context *lp_ctx;
866 NTSTATUS status;
867 struct dfs_GetDFSReferral *r;
868 DATA_BLOB outblob = data_blob_null;
869 uint16_t nb_referrals = 0;
870
871 lp_ctx = req->tcon->ntvfs->lp_ctx;
872 if (!lpcfg_host_msdfs(lp_ctx)) {
873 return NT_STATUS_NOT_IMPLEMENTED;
874 }
875
876 r = talloc_zero(req, struct dfs_GetDFSReferral);
877 NT_STATUS_HAVE_NO_MEMORY(r);
878
879 ldb = samdb_connect(r, req->tcon->ntvfs->event_ctx, lp_ctx, system_session(lp_ctx), 0);
880 if (ldb == NULL) {
881 DEBUG(2,(__location__ ": Failed to open samdb\n"));
882 talloc_free(r);
883 return NT_STATUS_INTERNAL_ERROR;
884 }
885
886 ndr_err = ndr_pull_struct_blob(&trans->in.params, r,
887 &r->in.req,
888 (ndr_pull_flags_fn_t)ndr_pull_dfs_GetDFSReferral_in);
889 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
890 status = ndr_map_error2ntstatus(ndr_err);
891 DEBUG(2,(__location__ ": Failed to parse GetDFSReferral_in - %s\n",
892 nt_errstr(status)));
893 talloc_free(r);
894 return status;
895 }
896
897 DEBUG(8, ("Requested DFS name: %s length: %u\n",
898 r->in.req.servername,
899 (unsigned int)strlen_m(r->in.req.servername)*2));
900
901 status = dfs_server_ad_get_referrals(lp_ctx, ldb,
902 req->smb_conn->connection->remote_address, r);
903 if (!NT_STATUS_IS_OK(status)) {
904 talloc_free(r);
905 return status;
906 }
907
908 ndr_err = ndr_push_struct_blob(&outblob, trans,
909 r->out.resp,
910 (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp);
911 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
912 DEBUG(2,(__location__ ":NDR marchalling of domain deferral response failed\n"));
913 talloc_free(r);
914 return NT_STATUS_INTERNAL_ERROR;
915 }
916
917 nb_referrals = r->out.resp->nb_referrals;
918
919 if (outblob.length > trans->in.max_data) {
920 bool ok = false;
921
922 DEBUG(3, ("Blob is too big for the output buffer "
923 "size %u max %u\n",
924 (unsigned int)outblob.length, trans->in.max_data));
925
926 if (trans->in.max_data != MAX_DFS_RESPONSE) {
927 /* As specified in MS-DFSC.pdf 3.3.5.2 */
928 talloc_free(r);
929 return STATUS_BUFFER_OVERFLOW;
930 }
931
932 /*
933 * The answer is too big, so let's remove some answers
934 */
935 while (!ok && r->out.resp->nb_referrals > 2) {
936 data_blob_free(&outblob);
937
938 /*
939 * Let's scrap the last referral (for now)
940 */
941 r->out.resp->nb_referrals -= 1;
942
943 ndr_err = ndr_push_struct_blob(&outblob, trans,
944 r->out.resp,
945 (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp);
946 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
947 talloc_free(r);
948 return NT_STATUS_INTERNAL_ERROR;
949 }
950
951 if (outblob.length <= MAX_DFS_RESPONSE) {
952 DEBUG(10,("DFS: managed to reduce the size of referral initial"
953 "number of referral %d, actual count: %d",
954 nb_referrals, r->out.resp->nb_referrals));
955 ok = true;
956 break;
957 }
958 }
959
960 if (!ok && r->out.resp->nb_referrals <= 2) {
961 DEBUG(8, (__location__ "; Not able to fit the domain and realm in DFS a "
962 " 56K buffer, something must be broken"));
963 talloc_free(r);
964 return NT_STATUS_INTERNAL_ERROR;
965 }
966 }
967
968 TRANS2_CHECK(trans2_setup_reply(trans, 0, outblob.length, 0));
969
970 trans->out.data = outblob;
971 talloc_free(r);
972 return NT_STATUS_OK;
973 }
974
975 /*
976 trans2 findfirst implementation
977 */
978 static NTSTATUS trans2_findfirst(struct smbsrv_request *req, struct trans_op *op)
979 {
980 struct smb_trans2 *trans = op->trans;
981 union smb_search_first *search;
982 uint16_t level;
983 struct find_state *state;
984
985 /* make sure we got all the parameters */
986 if (trans->in.params.length < 14) {
987 return NT_STATUS_FOOBAR;
988 }
989
990 search = talloc(op, union smb_search_first);
991 NT_STATUS_HAVE_NO_MEMORY(search);
992
993 search->t2ffirst.in.search_attrib = SVAL(trans->in.params.data, 0);
994 search->t2ffirst.in.max_count = SVAL(trans->in.params.data, 2);
995 search->t2ffirst.in.flags = SVAL(trans->in.params.data, 4);
996 level = SVAL(trans->in.params.data, 6);
997 search->t2ffirst.in.storage_type = IVAL(trans->in.params.data, 8);
998
999 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2ffirst.in.pattern, 0);
1000 if (search->t2ffirst.in.pattern == NULL) {
1001 return NT_STATUS_FOOBAR;
1002 }
1003
1004 search->t2ffirst.level = RAW_SEARCH_TRANS2;
1005 search->t2ffirst.data_level = (enum smb_search_data_level)level;
1006 if (search->t2ffirst.data_level >= RAW_SEARCH_DATA_GENERIC) {
1007 return NT_STATUS_INVALID_LEVEL;
1008 }
1009
1010 if (search->t2ffirst.data_level == RAW_SEARCH_DATA_EA_LIST) {
1011 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
1012 &search->t2ffirst.in.num_names,
1013 &search->t2ffirst.in.ea_names));
1014 }
1015
1016 /* setup the private state structure that the backend will
1017 give us in the callback */
1018 state = talloc(op, struct find_state);
1019 NT_STATUS_HAVE_NO_MEMORY(state);
1020 state->op = op;
1021 state->search = search;
1022 state->data_level = search->t2ffirst.data_level;
1023 state->last_entry_offset= 0;
1024 state->flags = search->t2ffirst.in.flags;
1025
1026 /* setup for just a header in the reply */
1027 TRANS2_CHECK(trans2_setup_reply(trans, 10, 0, 0));
1028
1029 op->op_info = state;
1030 op->send_fn = trans2_findfirst_send;
1031
1032 return ntvfs_search_first(req->ntvfs, search, state, find_callback);
1033 }
1034
1035
1036 /*
1037 trans2 findnext send
1038 */
1039 static NTSTATUS trans2_findnext_send(struct trans_op *op)
1040 {
1041 struct smbsrv_request *req = op->req;
1042 struct smb_trans2 *trans = op->trans;
1043 union smb_search_next *search;
1044 struct find_state *state;
1045 uint8_t *param;
1046
1047 TRANS2_CHECK_ASYNC_STATUS(state, struct find_state);
1048 search = talloc_get_type(state->search, union smb_search_next);
1049
1050 /* fill in the findfirst reply header */
1051 param = trans->out.params.data;
1052 SSVAL(param, VWV(0), search->t2fnext.out.count);
1053 SSVAL(param, VWV(1), search->t2fnext.out.end_of_search);
1054 SSVAL(param, VWV(2), 0);
1055 SSVAL(param, VWV(3), state->last_entry_offset);
1056
1057 return NT_STATUS_OK;
1058 }
1059
1060
1061 /*
1062 trans2 findnext implementation
1063 */
1064 static NTSTATUS trans2_findnext(struct smbsrv_request *req, struct trans_op *op)
1065 {
1066 struct smb_trans2 *trans = op->trans;
1067 union smb_search_next *search;
1068 uint16_t level;
1069 struct find_state *state;
1070
1071 /* make sure we got all the parameters */
1072 if (trans->in.params.length < 12) {
1073 return NT_STATUS_FOOBAR;
1074 }
1075
1076 search = talloc(op, union smb_search_next);
1077 NT_STATUS_HAVE_NO_MEMORY(search);
1078
1079 search->t2fnext.in.handle = SVAL(trans->in.params.data, 0);
1080 search->t2fnext.in.max_count = SVAL(trans->in.params.data, 2);
1081 level = SVAL(trans->in.params.data, 4);
1082 search->t2fnext.in.resume_key = IVAL(trans->in.params.data, 6);
1083 search->t2fnext.in.flags = SVAL(trans->in.params.data, 10);
1084
1085 smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2fnext.in.last_name, 0);
1086 if (search->t2fnext.in.last_name == NULL) {
1087 return NT_STATUS_FOOBAR;
1088 }
1089
1090 search->t2fnext.level = RAW_SEARCH_TRANS2;
1091 search->t2fnext.data_level = (enum smb_search_data_level)level;
1092 if (search->t2fnext.data_level >= RAW_SEARCH_DATA_GENERIC) {
1093 return NT_STATUS_INVALID_LEVEL;
1094 }
1095
1096 if (search->t2fnext.data_level == RAW_SEARCH_DATA_EA_LIST) {
1097 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
1098 &search->t2fnext.in.num_names,
1099 &search->t2fnext.in.ea_names));
1100 }
1101
1102 /* setup the private state structure that the backend will give us in the callback */
1103 state = talloc(op, struct find_state);
1104 NT_STATUS_HAVE_NO_MEMORY(state);
1105 state->op = op;
1106 state->search = search;
1107 state->data_level = search->t2fnext.data_level;
1108 state->last_entry_offset= 0;
1109 state->flags = search->t2fnext.in.flags;
1110
1111 /* setup for just a header in the reply */
1112 TRANS2_CHECK(trans2_setup_reply(trans, 8, 0, 0));
1113
1114 op->op_info = state;
1115 op->send_fn = trans2_findnext_send;
1116
1117 return ntvfs_search_next(req->ntvfs, search, state, find_callback);
1118 }
1119
1120
1121 /*
1122 backend for trans2 requests
1123 */
1124 static NTSTATUS trans2_backend(struct smbsrv_request *req, struct trans_op *op)
1125 {
1126 struct smb_trans2 *trans = op->trans;
1127 NTSTATUS status;
1128
1129 /* direct trans2 pass thru */
1130 status = ntvfs_trans2(req->ntvfs, trans);
1131 if (!NT_STATUS_EQUAL(NT_STATUS_NOT_IMPLEMENTED, status)) {
1132 return status;
1133 }
1134
1135 /* must have at least one setup word */
1136 if (trans->in.setup_count < 1) {
1137 return NT_STATUS_FOOBAR;
1138 }
1139
1140 /* the trans2 command is in setup[0] */
1141 switch (trans->in.setup[0]) {
1142 case TRANSACT2_GET_DFS_REFERRAL:
1143 return trans2_getdfsreferral(req, op);
1144 case TRANSACT2_FINDFIRST:
1145 return trans2_findfirst(req, op);
1146 case TRANSACT2_FINDNEXT:
1147 return trans2_findnext(req, op);
1148 case TRANSACT2_QPATHINFO:
1149 return trans2_qpathinfo(req, op);
1150 case TRANSACT2_QFILEINFO:
1151 return trans2_qfileinfo(req, op);
1152 case TRANSACT2_SETFILEINFO:
1153 return trans2_setfileinfo(req, op);
1154 case TRANSACT2_SETPATHINFO:
1155 return trans2_setpathinfo(req, op);
1156 case TRANSACT2_QFSINFO:
1157 return trans2_qfsinfo(req, op);
1158 case TRANSACT2_OPEN:
1159 return trans2_open(req, op);
1160 case TRANSACT2_MKDIR:
1161 return trans2_mkdir(req, op);
1162 }
1163
1164 /* an unknown trans2 command */
1165 return NT_STATUS_FOOBAR;
1166 }
1167
1168 int smbsrv_trans_partial_destructor(struct smbsrv_trans_partial *tp)
1169 {
1170 DLIST_REMOVE(tp->req->smb_conn->trans_partial, tp);
1171 return 0;
1172 }
1173
1174
1175 /*
1176 send a continue request
1177 */
1178 static void reply_trans_continue(struct smbsrv_request *req, uint8_t command,
1179 struct smb_trans2 *trans)
1180 {
1181 struct smbsrv_request *req2;
1182 struct smbsrv_trans_partial *tp;
1183 int count;
1184
1185 /* make sure they don't flood us */
1186 for (count=0,tp=req->smb_conn->trans_partial;tp;tp=tp->next) count++;
1187 if (count > 100) {
1188 smbsrv_send_error(req, NT_STATUS_INSUFFICIENT_RESOURCES);
1189 return;
1190 }
1191
1192 tp = talloc(req, struct smbsrv_trans_partial);
1193
1194 tp->req = req;
1195 tp->u.trans = trans;
1196 tp->command = command;
1197
1198 DLIST_ADD(req->smb_conn->trans_partial, tp);
1199 talloc_set_destructor(tp, smbsrv_trans_partial_destructor);
1200
1201 req2 = smbsrv_setup_secondary_request(req);
1202
1203 /* send a 'please continue' reply */
1204 smbsrv_setup_reply(req2, 0, 0);
1205 smbsrv_send_reply(req2);
1206 }
1207
1208
1209 /*
1210 answer a reconstructed trans request
1211 */
1212 static void reply_trans_send(struct ntvfs_request *ntvfs)
1213 {
1214 struct smbsrv_request *req;
1215 struct trans_op *op;
1216 struct smb_trans2 *trans;
1217 uint16_t params_left, data_left;
1218 uint8_t *params, *data;
1219 int i;
1220
1221 SMBSRV_CHECK_ASYNC_STATUS_ERR(op, struct trans_op);
1222 trans = op->trans;
1223
1224 /* if this function needs work to form the nttrans reply buffer, then
1225 call that now */
1226 if (op->send_fn != NULL) {
1227 NTSTATUS status;
1228 status = op->send_fn(op);
1229 if (!NT_STATUS_IS_OK(status)) {
1230 smbsrv_send_error(req, status);
1231 return;
1232 }
1233 }
1234
1235 params_left = trans->out.params.length;
1236 data_left = trans->out.data.length;
1237 params = trans->out.params.data;
1238 data = trans->out.data.data;
1239
1240 smbsrv_setup_reply(req, 10 + trans->out.setup_count, 0);
1241
1242 if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) {
1243 smbsrv_setup_error(req, req->ntvfs->async_states->status);
1244 }
1245
1246 /* we need to divide up the reply into chunks that fit into
1247 the negotiated buffer size */
1248 do {
1249 uint16_t this_data, this_param, max_bytes;
1250 unsigned int align1 = 1, align2 = (params_left ? 2 : 0);
1251 struct smbsrv_request *this_req;
1252
1253 max_bytes = req_max_data(req) - (align1 + align2);
1254
1255 this_param = params_left;
1256 if (this_param > max_bytes) {
1257 this_param = max_bytes;
1258 }
1259 max_bytes -= this_param;
1260
1261 this_data = data_left;
1262 if (this_data > max_bytes) {
1263 this_data = max_bytes;
1264 }
1265
1266 /* don't destroy unless this is the last chunk */
1267 if (params_left - this_param != 0 ||
1268 data_left - this_data != 0) {
1269 this_req = smbsrv_setup_secondary_request(req);
1270 } else {
1271 this_req = req;
1272 }
1273
1274 req_grow_data(this_req, this_param + this_data + (align1 + align2));
1275
1276 SSVAL(this_req->out.vwv, VWV(0), trans->out.params.length);
1277 SSVAL(this_req->out.vwv, VWV(1), trans->out.data.length);
1278 SSVAL(this_req->out.vwv, VWV(2), 0);
1279
1280 SSVAL(this_req->out.vwv, VWV(3), this_param);
1281 SSVAL(this_req->out.vwv, VWV(4), align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr));
1282 SSVAL(this_req->out.vwv, VWV(5), PTR_DIFF(params, trans->out.params.data));
1283
1284 SSVAL(this_req->out.vwv, VWV(6), this_data);
1285 SSVAL(this_req->out.vwv, VWV(7), align1 + align2 +
1286 PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr));
1287 SSVAL(this_req->out.vwv, VWV(8), PTR_DIFF(data, trans->out.data.data));
1288
1289 SCVAL(this_req->out.vwv, VWV(9), trans->out.setup_count);
1290 SCVAL(this_req->out.vwv, VWV(9)+1, 0); /* reserved */
1291 for (i=0;i<trans->out.setup_count;i++) {
1292 SSVAL(this_req->out.vwv, VWV(10+i), trans->out.setup[i]);
1293 }
1294
1295 memset(this_req->out.data, 0, align1);
1296 if (this_param != 0) {
1297 memcpy(this_req->out.data + align1, params, this_param);
1298 }
1299 memset(this_req->out.data+this_param+align1, 0, align2);
1300 if (this_data != 0) {
1301 memcpy(this_req->out.data+this_param+align1+align2, data, this_data);
1302 }
1303
1304 params_left -= this_param;
1305 data_left -= this_data;
1306 params += this_param;
1307 data += this_data;
1308
1309 smbsrv_send_reply(this_req);
1310 } while (params_left != 0 || data_left != 0);
1311 }
1312
1313
1314 /*
1315 answer a reconstructed trans request
1316 */
1317 static void reply_trans_complete(struct smbsrv_request *req, uint8_t command,
1318 struct smb_trans2 *trans)
1319 {
1320 struct trans_op *op;
1321
1322 SMBSRV_TALLOC_IO_PTR(op, struct trans_op);
1323 SMBSRV_SETUP_NTVFS_REQUEST(reply_trans_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
1324
1325 op->req = req;
1326 op->trans = trans;
1327 op->command = command;
1328 op->op_info = NULL;
1329 op->send_fn = NULL;
1330
1331 /* its a full request, give it to the backend */
1332 if (command == SMBtrans) {
1333 SMBSRV_CALL_NTVFS_BACKEND(ntvfs_trans(req->ntvfs, trans));
1334 return;
1335 } else {
1336 SMBSRV_CALL_NTVFS_BACKEND(trans2_backend(req, op));
1337 return;
1338 }
1339 }
1340
1341 /*
1342 Reply to an SMBtrans or SMBtrans2 request
1343 */
1344 static void reply_trans_generic(struct smbsrv_request *req, uint8_t command)
1345 {
1346 struct smb_trans2 *trans;
1347 int i;
1348 uint16_t param_ofs, data_ofs;
1349 uint16_t param_count, data_count;
1350 uint16_t param_total, data_total;
1351
1352 /* parse request */
1353 if (req->in.wct < 14) {
1354 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1355 return;
1356 }
1357
1358 trans = talloc(req, struct smb_trans2);
1359 if (trans == NULL) {
1360 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
1361 return;
1362 }
1363
1364 param_total = SVAL(req->in.vwv, VWV(0));
1365 data_total = SVAL(req->in.vwv, VWV(1));
1366 trans->in.max_param = SVAL(req->in.vwv, VWV(2));
1367 trans->in.max_data = SVAL(req->in.vwv, VWV(3));
1368 trans->in.max_setup = CVAL(req->in.vwv, VWV(4));
1369 trans->in.flags = SVAL(req->in.vwv, VWV(5));
1370 trans->in.timeout = IVAL(req->in.vwv, VWV(6));
1371 param_count = SVAL(req->in.vwv, VWV(9));
1372 param_ofs = SVAL(req->in.vwv, VWV(10));
1373 data_count = SVAL(req->in.vwv, VWV(11));
1374 data_ofs = SVAL(req->in.vwv, VWV(12));
1375 trans->in.setup_count = CVAL(req->in.vwv, VWV(13));
1376
1377 if (req->in.wct != 14 + trans->in.setup_count) {
1378 smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
1379 return;
1380 }
1381
1382 /* parse out the setup words */
1383 trans->in.setup = talloc_array(trans, uint16_t, trans->in.setup_count);
1384 if (trans->in.setup_count && !trans->in.setup) {
1385 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
1386 return;
1387 }
1388 for (i=0;i<trans->in.setup_count;i++) {
1389 trans->in.setup[i] = SVAL(req->in.vwv, VWV(14+i));
1390 }
1391
1392 if (command == SMBtrans) {
1393 req_pull_string(&req->in.bufinfo, &trans->in.trans_name, req->in.data, -1, STR_TERMINATE);
1394 }
1395
1396 if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &trans->in.params) ||
1397 !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &trans->in.data)) {
1398 smbsrv_send_error(req, NT_STATUS_FOOBAR);
1399 return;
1400 }
1401
1402 /* is it a partial request? if so, then send a 'send more' message */
1403 if (param_total > param_count || data_total > data_count) {
1404 reply_trans_continue(req, command, trans);
1405 return;
1406 }
1407
1408 reply_trans_complete(req, command, trans);
1409 }
1410
1411
1412 /*
1413 Reply to an SMBtranss2 request
1414 */
1415 static void reply_transs_generic(struct smbsrv_request *req, uint8_t command)
1416 {
1417 struct smbsrv_trans_partial *tp;
1418 struct smb_trans2 *trans = NULL;
1419 uint16_t param_ofs, data_ofs;
1420 uint16_t param_count, data_count;
1421 uint16_t param_disp, data_disp;
1422 uint16_t param_total, data_total;
1423 DATA_BLOB params, data;
1424 uint8_t wct;
1425
1426 if (command == SMBtrans2) {
1427 wct = 9;
1428 } else {
1429 wct = 8;
1430 }
1431
1432 /* parse request */
1433 if (req->in.wct != wct) {
1434 /*
1435 * TODO: add some error code tests
1436 * w2k3 returns NT_STATUS_DOS(ERRSRV, ERRerror) here
1437 */
1438 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1439 return;
1440 }
1441
1442 for (tp=req->smb_conn->trans_partial;tp;tp=tp->next) {
1443 if (tp->command == command &&
1444 SVAL(tp->req->in.hdr, HDR_MID) == SVAL(req->in.hdr, HDR_MID)) {
1445 /* TODO: check the VUID, PID and TID too? */
1446 break;
1447 }
1448 }
1449
1450 if (tp == NULL) {
1451 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1452 return;
1453 }
1454
1455 trans = tp->u.trans;
1456
1457 param_total = SVAL(req->in.vwv, VWV(0));
1458 data_total = SVAL(req->in.vwv, VWV(1));
1459 param_count = SVAL(req->in.vwv, VWV(2));
1460 param_ofs = SVAL(req->in.vwv, VWV(3));
1461 param_disp = SVAL(req->in.vwv, VWV(4));
1462 data_count = SVAL(req->in.vwv, VWV(5));
1463 data_ofs = SVAL(req->in.vwv, VWV(6));
1464 data_disp = SVAL(req->in.vwv, VWV(7));
1465
1466 if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &params) ||
1467 !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &data)) {
1468 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1469 return;
1470 }
1471
1472 /* only allow contiguous requests */
1473 if ((param_count != 0 &&
1474 param_disp != trans->in.params.length) ||
1475 (data_count != 0 &&
1476 data_disp != trans->in.data.length)) {
1477 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1478 return;
1479 }
1480
1481 /* add to the existing request */
1482 if (param_count != 0) {
1483 trans->in.params.data = talloc_realloc(trans,
1484 trans->in.params.data,
1485 uint8_t,
1486 param_disp + param_count);
1487 if (trans->in.params.data == NULL) {
1488 smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY);
1489 return;
1490 }
1491 trans->in.params.length = param_disp + param_count;
1492 }
1493
1494 if (data_count != 0) {
1495 trans->in.data.data = talloc_realloc(trans,
1496 trans->in.data.data,
1497 uint8_t,
1498 data_disp + data_count);
1499 if (trans->in.data.data == NULL) {
1500 smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY);
1501 return;
1502 }
1503 trans->in.data.length = data_disp + data_count;
1504 }
1505
1506 memcpy(trans->in.params.data + param_disp, params.data, params.length);
1507 memcpy(trans->in.data.data + data_disp, data.data, data.length);
1508
1509 /* the sequence number of the reply is taken from the last secondary
1510 response */
1511 tp->req->seq_num = req->seq_num;
1512
1513 /* we don't reply to Transs2 requests */
1514 talloc_free(req);
1515
1516 if (trans->in.params.length == param_total &&
1517 trans->in.data.length == data_total) {
1518 /* its now complete */
1519 req = tp->req;
1520 talloc_free(tp);
1521 reply_trans_complete(req, command, trans);
1522 }
1523 return;
1524 }
1525
1526
1527 /*
1528 Reply to an SMBtrans2
1529 */
1530 void smbsrv_reply_trans2(struct smbsrv_request *req)
1531 {
1532 reply_trans_generic(req, SMBtrans2);
1533 }
1534
1535 /*
1536 Reply to an SMBtrans
1537 */
1538 void smbsrv_reply_trans(struct smbsrv_request *req)
1539 {
1540 reply_trans_generic(req, SMBtrans);
1541 }
1542
1543 /*
1544 Reply to an SMBtranss request
1545 */
1546 void smbsrv_reply_transs(struct smbsrv_request *req)
1547 {
1548 reply_transs_generic(req, SMBtrans);
1549 }
1550
1551 /*
1552 Reply to an SMBtranss2 request
1553 */
1554 void smbsrv_reply_transs2(struct smbsrv_request *req)
1555 {
1556 reply_transs_generic(req, SMBtrans2);
1557 }
reg import