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s4/selftest: Enable samba.tests.samba_tool.join for py3
[Samba.git] / source3 / smbd / nttrans.c
blob68470766f77914620ac4dc660099d9625508eed0
1 /*
2 Unix SMB/CIFS implementation.
3 SMB NT transaction handling
4 Copyright (C) Jeremy Allison 1994-2007
5 Copyright (C) Stefan (metze) Metzmacher 2003
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 "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "fake_file.h"
26 #include "../libcli/security/security.h"
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "passdb/lookup_sid.h"
29 #include "auth.h"
30 #include "smbprofile.h"
31 #include "libsmb/libsmb.h"
32 #include "lib/util_ea.h"
33 #include "librpc/gen_ndr/ndr_quota.h"
34 #include "librpc/gen_ndr/ndr_security.h"
35
36 extern const struct generic_mapping file_generic_mapping;
37
38 static char *nttrans_realloc(char **ptr, size_t size)
39 {
40 if (ptr==NULL) {
41 smb_panic("nttrans_realloc() called with NULL ptr");
42 }
43
44 *ptr = (char *)SMB_REALLOC(*ptr, size);
45 if(*ptr == NULL) {
46 return NULL;
47 }
48 memset(*ptr,'\0',size);
49 return *ptr;
50 }
51
52 /****************************************************************************
53 Send the required number of replies back.
54 We assume all fields other than the data fields are
55 set correctly for the type of call.
56 HACK ! Always assumes smb_setup field is zero.
57 ****************************************************************************/
58
59 static void send_nt_replies(connection_struct *conn,
60 struct smb_request *req, NTSTATUS nt_error,
61 char *params, int paramsize,
62 char *pdata, int datasize)
63 {
64 int data_to_send = datasize;
65 int params_to_send = paramsize;
66 int useable_space;
67 char *pp = params;
68 char *pd = pdata;
69 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
70 int alignment_offset = 1;
71 int data_alignment_offset = 0;
72 struct smbXsrv_connection *xconn = req->xconn;
73 int max_send = xconn->smb1.sessions.max_send;
74
75 /*
76 * If there genuinely are no parameters or data to send just send
77 * the empty packet.
78 */
79
80 if(params_to_send == 0 && data_to_send == 0) {
81 reply_outbuf(req, 18, 0);
82 if (NT_STATUS_V(nt_error)) {
83 error_packet_set((char *)req->outbuf,
84 0, 0, nt_error,
85 __LINE__,__FILE__);
86 }
87 show_msg((char *)req->outbuf);
88 if (!srv_send_smb(xconn,
89 (char *)req->outbuf,
90 true, req->seqnum+1,
91 IS_CONN_ENCRYPTED(conn),
92 &req->pcd)) {
93 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
94 }
95 TALLOC_FREE(req->outbuf);
96 return;
97 }
98
99 /*
100 * When sending params and data ensure that both are nicely aligned.
101 * Only do this alignment when there is also data to send - else
102 * can cause NT redirector problems.
103 */
104
105 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
106 data_alignment_offset = 4 - (params_to_send % 4);
107 }
108
109 /*
110 * Space is bufsize minus Netbios over TCP header minus SMB header.
111 * The alignment_offset is to align the param bytes on a four byte
112 * boundary (2 bytes for data len, one byte pad).
113 * NT needs this to work correctly.
114 */
115
116 useable_space = max_send - (smb_size
117 + 2 * 18 /* wct */
118 + alignment_offset
119 + data_alignment_offset);
120
121 if (useable_space < 0) {
122 char *msg = talloc_asprintf(
123 talloc_tos(),
124 "send_nt_replies failed sanity useable_space = %d!!!",
125 useable_space);
126 DEBUG(0, ("%s\n", msg));
127 exit_server_cleanly(msg);
128 }
129
130 while (params_to_send || data_to_send) {
131
132 /*
133 * Calculate whether we will totally or partially fill this packet.
134 */
135
136 total_sent_thistime = params_to_send + data_to_send;
137
138 /*
139 * We can never send more than useable_space.
140 */
141
142 total_sent_thistime = MIN(total_sent_thistime, useable_space);
143
144 reply_outbuf(req, 18,
145 total_sent_thistime + alignment_offset
146 + data_alignment_offset);
147
148 /*
149 * Set total params and data to be sent.
150 */
151
152 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
153 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
154
155 /*
156 * Calculate how many parameters and data we can fit into
157 * this packet. Parameters get precedence.
158 */
159
160 params_sent_thistime = MIN(params_to_send,useable_space);
161 data_sent_thistime = useable_space - params_sent_thistime;
162 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
163
164 SIVAL(req->outbuf, smb_ntr_ParameterCount,
165 params_sent_thistime);
166
167 if(params_sent_thistime == 0) {
168 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
169 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
170 } else {
171 /*
172 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
173 * parameter bytes, however the first 4 bytes of outbuf are
174 * the Netbios over TCP header. Thus use smb_base() to subtract
175 * them from the calculation.
176 */
177
178 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
179 ((smb_buf(req->outbuf)+alignment_offset)
180 - smb_base(req->outbuf)));
181 /*
182 * Absolute displacement of param bytes sent in this packet.
183 */
184
185 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
186 pp - params);
187 }
188
189 /*
190 * Deal with the data portion.
191 */
192
193 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
194
195 if(data_sent_thistime == 0) {
196 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
197 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
198 } else {
199 /*
200 * The offset of the data bytes is the offset of the
201 * parameter bytes plus the number of parameters being sent this time.
202 */
203
204 SIVAL(req->outbuf, smb_ntr_DataOffset,
205 ((smb_buf(req->outbuf)+alignment_offset) -
206 smb_base(req->outbuf))
207 + params_sent_thistime + data_alignment_offset);
208 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
209 }
210
211 /*
212 * Copy the param bytes into the packet.
213 */
214
215 if(params_sent_thistime) {
216 if (alignment_offset != 0) {
217 memset(smb_buf(req->outbuf), 0,
218 alignment_offset);
219 }
220 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
221 params_sent_thistime);
222 }
223
224 /*
225 * Copy in the data bytes
226 */
227
228 if(data_sent_thistime) {
229 if (data_alignment_offset != 0) {
230 memset((smb_buf(req->outbuf)+alignment_offset+
231 params_sent_thistime), 0,
232 data_alignment_offset);
233 }
234 memcpy(smb_buf(req->outbuf)+alignment_offset
235 +params_sent_thistime+data_alignment_offset,
236 pd,data_sent_thistime);
237 }
238
239 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
240 params_sent_thistime, data_sent_thistime, useable_space));
241 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
242 params_to_send, data_to_send, paramsize, datasize));
243
244 if (NT_STATUS_V(nt_error)) {
245 error_packet_set((char *)req->outbuf,
246 0, 0, nt_error,
247 __LINE__,__FILE__);
248 }
249
250 /* Send the packet */
251 show_msg((char *)req->outbuf);
252 if (!srv_send_smb(xconn,
253 (char *)req->outbuf,
254 true, req->seqnum+1,
255 IS_CONN_ENCRYPTED(conn),
256 &req->pcd)) {
257 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
258 }
259
260 TALLOC_FREE(req->outbuf);
261
262 pp += params_sent_thistime;
263 pd += data_sent_thistime;
264
265 params_to_send -= params_sent_thistime;
266 data_to_send -= data_sent_thistime;
267
268 /*
269 * Sanity check
270 */
271
272 if(params_to_send < 0 || data_to_send < 0) {
273 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
274 params_to_send, data_to_send));
275 exit_server_cleanly("send_nt_replies: internal error");
276 }
277 }
278 }
279
280 /****************************************************************************
281 Reply to an NT create and X call on a pipe
282 ****************************************************************************/
283
284 static void nt_open_pipe(char *fname, connection_struct *conn,
285 struct smb_request *req, uint16_t *ppnum)
286 {
287 files_struct *fsp;
288 NTSTATUS status;
289
290 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
291
292 /* Strip \\ off the name if present. */
293 while (fname[0] == '\\') {
294 fname++;
295 }
296
297 status = open_np_file(req, fname, &fsp);
298 if (!NT_STATUS_IS_OK(status)) {
299 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
300 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
301 ERRDOS, ERRbadpipe);
302 return;
303 }
304 reply_nterror(req, status);
305 return;
306 }
307
308 *ppnum = fsp->fnum;
309 return;
310 }
311
312 /****************************************************************************
313 Reply to an NT create and X call for pipes.
314 ****************************************************************************/
315
316 static void do_ntcreate_pipe_open(connection_struct *conn,
317 struct smb_request *req)
318 {
319 char *fname = NULL;
320 uint16_t pnum = FNUM_FIELD_INVALID;
321 char *p = NULL;
322 uint32_t flags = IVAL(req->vwv+3, 1);
323 TALLOC_CTX *ctx = talloc_tos();
324
325 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
326
327 if (!fname) {
328 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
329 ERRDOS, ERRbadpipe);
330 return;
331 }
332 nt_open_pipe(fname, conn, req, &pnum);
333
334 if (req->outbuf) {
335 /* error reply */
336 return;
337 }
338
339 /*
340 * Deal with pipe return.
341 */
342
343 if (flags & EXTENDED_RESPONSE_REQUIRED) {
344 /* This is very strange. We
345 * return 50 words, but only set
346 * the wcnt to 42 ? It's definitely
347 * what happens on the wire....
348 */
349 reply_outbuf(req, 50, 0);
350 SCVAL(req->outbuf,smb_wct,42);
351 } else {
352 reply_outbuf(req, 34, 0);
353 }
354
355 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
356 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
357
358 p = (char *)req->outbuf + smb_vwv2;
359 p++;
360 SSVAL(p,0,pnum);
361 p += 2;
362 SIVAL(p,0,FILE_WAS_OPENED);
363 p += 4;
364 p += 32;
365 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
366 p += 20;
367 /* File type. */
368 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
369 /* Device state. */
370 SSVAL(p,2, 0x5FF); /* ? */
371 p += 4;
372
373 if (flags & EXTENDED_RESPONSE_REQUIRED) {
374 p += 25;
375 SIVAL(p,0,FILE_GENERIC_ALL);
376 /*
377 * For pipes W2K3 seems to return
378 * 0x12019B next.
379 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
380 */
381 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
382 }
383
384 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
385 }
386
387 struct case_semantics_state {
388 connection_struct *conn;
389 bool case_sensitive;
390 bool case_preserve;
391 bool short_case_preserve;
392 };
393
394 /****************************************************************************
395 Restore case semantics.
396 ****************************************************************************/
397
398 static int restore_case_semantics(struct case_semantics_state *state)
399 {
400 state->conn->case_sensitive = state->case_sensitive;
401 state->conn->case_preserve = state->case_preserve;
402 state->conn->short_case_preserve = state->short_case_preserve;
403 return 0;
404 }
405
406 /****************************************************************************
407 Save case semantics.
408 ****************************************************************************/
409
410 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
411 connection_struct *conn)
412 {
413 struct case_semantics_state *result;
414
415 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
416 return NULL;
417 }
418
419 result->conn = conn;
420 result->case_sensitive = conn->case_sensitive;
421 result->case_preserve = conn->case_preserve;
422 result->short_case_preserve = conn->short_case_preserve;
423
424 /* Set to POSIX. */
425 conn->case_sensitive = True;
426 conn->case_preserve = True;
427 conn->short_case_preserve = True;
428
429 talloc_set_destructor(result, restore_case_semantics);
430
431 return result;
432 }
433
434 /****************************************************************************
435 Reply to an NT create and X call.
436 ****************************************************************************/
437
438 void reply_ntcreate_and_X(struct smb_request *req)
439 {
440 connection_struct *conn = req->conn;
441 struct smb_filename *smb_fname = NULL;
442 char *fname = NULL;
443 uint32_t flags;
444 uint32_t access_mask;
445 uint32_t file_attributes;
446 uint32_t share_access;
447 uint32_t create_disposition;
448 uint32_t create_options;
449 uint16_t root_dir_fid;
450 uint64_t allocation_size;
451 /* Breakout the oplock request bits so we can set the
452 reply bits separately. */
453 uint32_t fattr=0;
454 off_t file_len = 0;
455 int info = 0;
456 files_struct *fsp = NULL;
457 char *p = NULL;
458 struct timespec create_timespec;
459 struct timespec c_timespec;
460 struct timespec a_timespec;
461 struct timespec m_timespec;
462 NTSTATUS status;
463 int oplock_request;
464 uint8_t oplock_granted = NO_OPLOCK_RETURN;
465 struct case_semantics_state *case_state = NULL;
466 uint32_t ucf_flags;
467 TALLOC_CTX *ctx = talloc_tos();
468
469 START_PROFILE(SMBntcreateX);
470
471 if (req->wct < 24) {
472 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
473 goto out;
474 }
475
476 flags = IVAL(req->vwv+3, 1);
477 access_mask = IVAL(req->vwv+7, 1);
478 file_attributes = IVAL(req->vwv+13, 1);
479 share_access = IVAL(req->vwv+15, 1);
480 create_disposition = IVAL(req->vwv+17, 1);
481 create_options = IVAL(req->vwv+19, 1);
482 root_dir_fid = (uint16_t)IVAL(req->vwv+5, 1);
483
484 allocation_size = BVAL(req->vwv+9, 1);
485
486 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
487 STR_TERMINATE, &status);
488
489 if (!NT_STATUS_IS_OK(status)) {
490 reply_nterror(req, status);
491 goto out;
492 }
493
494 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
495 "file_attributes = 0x%x, share_access = 0x%x, "
496 "create_disposition = 0x%x create_options = 0x%x "
497 "root_dir_fid = 0x%x, fname = %s\n",
498 (unsigned int)flags,
499 (unsigned int)access_mask,
500 (unsigned int)file_attributes,
501 (unsigned int)share_access,
502 (unsigned int)create_disposition,
503 (unsigned int)create_options,
504 (unsigned int)root_dir_fid,
505 fname));
506
507 /*
508 * we need to remove ignored bits when they come directly from the client
509 * because we reuse some of them for internal stuff
510 */
511 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
512
513 /*
514 * If it's an IPC, use the pipe handler.
515 */
516
517 if (IS_IPC(conn)) {
518 if (lp_nt_pipe_support()) {
519 do_ntcreate_pipe_open(conn, req);
520 goto out;
521 }
522 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
523 goto out;
524 }
525
526 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
527 if (oplock_request) {
528 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
529 ? BATCH_OPLOCK : 0;
530 }
531
532 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
533 case_state = set_posix_case_semantics(ctx, conn);
534 if (!case_state) {
535 reply_nterror(req, NT_STATUS_NO_MEMORY);
536 goto out;
537 }
538 }
539
540 ucf_flags = filename_create_ucf_flags(req, create_disposition);
541 status = filename_convert(ctx,
542 conn,
543 fname,
544 ucf_flags,
545 NULL,
546 &smb_fname);
547
548 TALLOC_FREE(case_state);
549
550 if (!NT_STATUS_IS_OK(status)) {
551 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
552 reply_botherror(req,
553 NT_STATUS_PATH_NOT_COVERED,
554 ERRSRV, ERRbadpath);
555 goto out;
556 }
557 reply_nterror(req, status);
558 goto out;
559 }
560
561 /*
562 * Bug #6898 - clients using Windows opens should
563 * never be able to set this attribute into the
564 * VFS.
565 */
566 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
567
568 status = SMB_VFS_CREATE_FILE(
569 conn, /* conn */
570 req, /* req */
571 root_dir_fid, /* root_dir_fid */
572 smb_fname, /* fname */
573 access_mask, /* access_mask */
574 share_access, /* share_access */
575 create_disposition, /* create_disposition*/
576 create_options, /* create_options */
577 file_attributes, /* file_attributes */
578 oplock_request, /* oplock_request */
579 NULL, /* lease */
580 allocation_size, /* allocation_size */
581 0, /* private_flags */
582 NULL, /* sd */
583 NULL, /* ea_list */
584 &fsp, /* result */
585 &info, /* pinfo */
586 NULL, NULL); /* create context */
587
588 if (!NT_STATUS_IS_OK(status)) {
589 if (open_was_deferred(req->xconn, req->mid)) {
590 /* We have re-scheduled this call, no error. */
591 goto out;
592 }
593 reply_openerror(req, status);
594 goto out;
595 }
596
597 /* Ensure we're pointing at the correct stat struct. */
598 TALLOC_FREE(smb_fname);
599 smb_fname = fsp->fsp_name;
600
601 /*
602 * If the caller set the extended oplock request bit
603 * and we granted one (by whatever means) - set the
604 * correct bit for extended oplock reply.
605 */
606
607 if (oplock_request &&
608 (lp_fake_oplocks(SNUM(conn))
609 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
610
611 /*
612 * Exclusive oplock granted
613 */
614
615 if (flags & REQUEST_BATCH_OPLOCK) {
616 oplock_granted = BATCH_OPLOCK_RETURN;
617 } else {
618 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
619 }
620 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
621 oplock_granted = LEVEL_II_OPLOCK_RETURN;
622 } else {
623 oplock_granted = NO_OPLOCK_RETURN;
624 }
625
626 file_len = smb_fname->st.st_ex_size;
627
628 if (flags & EXTENDED_RESPONSE_REQUIRED) {
629 /* This is very strange. We
630 * return 50 words, but only set
631 * the wcnt to 42 ? It's definitely
632 * what happens on the wire....
633 */
634 reply_outbuf(req, 50, 0);
635 SCVAL(req->outbuf,smb_wct,42);
636 } else {
637 reply_outbuf(req, 34, 0);
638 }
639
640 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
641 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
642
643 p = (char *)req->outbuf + smb_vwv2;
644
645 SCVAL(p, 0, oplock_granted);
646
647 p++;
648 SSVAL(p,0,fsp->fnum);
649 p += 2;
650 if ((create_disposition == FILE_SUPERSEDE)
651 && (info == FILE_WAS_OVERWRITTEN)) {
652 SIVAL(p,0,FILE_WAS_SUPERSEDED);
653 } else {
654 SIVAL(p,0,info);
655 }
656 p += 4;
657
658 fattr = dos_mode(conn, smb_fname);
659 if (fattr == 0) {
660 fattr = FILE_ATTRIBUTE_NORMAL;
661 }
662
663 /* Create time. */
664 create_timespec = get_create_timespec(conn, fsp, smb_fname);
665 a_timespec = smb_fname->st.st_ex_atime;
666 m_timespec = smb_fname->st.st_ex_mtime;
667 c_timespec = get_change_timespec(conn, fsp, smb_fname);
668
669 if (lp_dos_filetime_resolution(SNUM(conn))) {
670 dos_filetime_timespec(&create_timespec);
671 dos_filetime_timespec(&a_timespec);
672 dos_filetime_timespec(&m_timespec);
673 dos_filetime_timespec(&c_timespec);
674 }
675
676 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
677 p += 8;
678 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
679 p += 8;
680 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
681 p += 8;
682 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
683 p += 8;
684 SIVAL(p,0,fattr); /* File Attributes. */
685 p += 4;
686 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
687 p += 8;
688 SOFF_T(p,0,file_len);
689 p += 8;
690 if (flags & EXTENDED_RESPONSE_REQUIRED) {
691 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
692 unsigned int num_streams = 0;
693 struct stream_struct *streams = NULL;
694
695 if (lp_ea_support(SNUM(conn))) {
696 size_t num_names = 0;
697 /* Do we have any EA's ? */
698 status = get_ea_names_from_file(
699 ctx, conn, fsp, smb_fname, NULL, &num_names);
700 if (NT_STATUS_IS_OK(status) && num_names) {
701 file_status &= ~NO_EAS;
702 }
703 }
704
705 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
706 &num_streams, &streams);
707 /* There is always one stream, ::$DATA. */
708 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
709 file_status &= ~NO_SUBSTREAMS;
710 }
711 TALLOC_FREE(streams);
712 SSVAL(p,2,file_status);
713 }
714 p += 4;
715 SCVAL(p,0,fsp->is_directory ? 1 : 0);
716
717 if (flags & EXTENDED_RESPONSE_REQUIRED) {
718 uint32_t perms = 0;
719 p += 25;
720 if (fsp->is_directory ||
721 fsp->can_write ||
722 can_write_to_file(conn, smb_fname)) {
723 perms = FILE_GENERIC_ALL;
724 } else {
725 perms = FILE_GENERIC_READ|FILE_EXECUTE;
726 }
727 SIVAL(p,0,perms);
728 }
729
730 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
731 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
732
733 out:
734 END_PROFILE(SMBntcreateX);
735 return;
736 }
737
738 /****************************************************************************
739 Reply to a NT_TRANSACT_CREATE call to open a pipe.
740 ****************************************************************************/
741
742 static void do_nt_transact_create_pipe(connection_struct *conn,
743 struct smb_request *req,
744 uint16_t **ppsetup, uint32_t setup_count,
745 char **ppparams, uint32_t parameter_count,
746 char **ppdata, uint32_t data_count)
747 {
748 char *fname = NULL;
749 char *params = *ppparams;
750 uint16_t pnum = FNUM_FIELD_INVALID;
751 char *p = NULL;
752 NTSTATUS status;
753 size_t param_len;
754 uint32_t flags;
755 TALLOC_CTX *ctx = talloc_tos();
756
757 /*
758 * Ensure minimum number of parameters sent.
759 */
760
761 if(parameter_count < 54) {
762 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
763 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
764 return;
765 }
766
767 flags = IVAL(params,0);
768
769 if (req->posix_pathnames) {
770 srvstr_get_path_posix(ctx,
771 params,
772 req->flags2,
773 &fname,
774 params+53,
775 parameter_count-53,
776 STR_TERMINATE,
777 &status);
778 } else {
779 srvstr_get_path(ctx,
780 params,
781 req->flags2,
782 &fname,
783 params+53,
784 parameter_count-53,
785 STR_TERMINATE,
786 &status);
787 }
788 if (!NT_STATUS_IS_OK(status)) {
789 reply_nterror(req, status);
790 return;
791 }
792
793 nt_open_pipe(fname, conn, req, &pnum);
794
795 if (req->outbuf) {
796 /* Error return */
797 return;
798 }
799
800 /* Realloc the size of parameters and data we will return */
801 if (flags & EXTENDED_RESPONSE_REQUIRED) {
802 /* Extended response is 32 more byyes. */
803 param_len = 101;
804 } else {
805 param_len = 69;
806 }
807 params = nttrans_realloc(ppparams, param_len);
808 if(params == NULL) {
809 reply_nterror(req, NT_STATUS_NO_MEMORY);
810 return;
811 }
812
813 p = params;
814 SCVAL(p,0,NO_OPLOCK_RETURN);
815
816 p += 2;
817 SSVAL(p,0,pnum);
818 p += 2;
819 SIVAL(p,0,FILE_WAS_OPENED);
820 p += 8;
821
822 p += 32;
823 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
824 p += 20;
825 /* File type. */
826 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
827 /* Device state. */
828 SSVAL(p,2, 0x5FF); /* ? */
829 p += 4;
830
831 if (flags & EXTENDED_RESPONSE_REQUIRED) {
832 p += 25;
833 SIVAL(p,0,FILE_GENERIC_ALL);
834 /*
835 * For pipes W2K3 seems to return
836 * 0x12019B next.
837 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
838 */
839 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
840 }
841
842 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
843
844 /* Send the required number of replies */
845 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
846
847 return;
848 }
849
850 /*********************************************************************
851 Windows seems to do canonicalization of inheritance bits. Do the
852 same.
853 *********************************************************************/
854
855 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
856 {
857 bool set_auto_inherited = false;
858
859 /*
860 * We need to filter out the
861 * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
862 * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
863 * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
864 * when an ACE is inherited. Otherwise we zero these bits out.
865 * See:
866 *
867 * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
868 *
869 * for details.
870 */
871
872 if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
873 == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
874 set_auto_inherited = true;
875 }
876
877 psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
878 if (set_auto_inherited) {
879 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
880 }
881 }
882
883 /****************************************************************************
884 Internal fn to set security descriptors.
885 ****************************************************************************/
886
887 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
888 uint32_t security_info_sent)
889 {
890 NTSTATUS status;
891
892 if (!CAN_WRITE(fsp->conn)) {
893 return NT_STATUS_ACCESS_DENIED;
894 }
895
896 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
897 return NT_STATUS_OK;
898 }
899
900 if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
901 DEBUG(10, ("ACL set on symlink %s denied.\n",
902 fsp_str_dbg(fsp)));
903 return NT_STATUS_ACCESS_DENIED;
904 }
905
906 if (psd->owner_sid == NULL) {
907 security_info_sent &= ~SECINFO_OWNER;
908 }
909 if (psd->group_sid == NULL) {
910 security_info_sent &= ~SECINFO_GROUP;
911 }
912
913 /* Ensure we have at least one thing set. */
914 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
915 /* Just like W2K3 */
916 return NT_STATUS_OK;
917 }
918
919 /* Ensure we have the rights to do this. */
920 if (security_info_sent & SECINFO_OWNER) {
921 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
922 return NT_STATUS_ACCESS_DENIED;
923 }
924 }
925
926 if (security_info_sent & SECINFO_GROUP) {
927 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
928 return NT_STATUS_ACCESS_DENIED;
929 }
930 }
931
932 if (security_info_sent & SECINFO_DACL) {
933 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
934 return NT_STATUS_ACCESS_DENIED;
935 }
936 /* Convert all the generic bits. */
937 if (psd->dacl) {
938 security_acl_map_generic(psd->dacl, &file_generic_mapping);
939 }
940 }
941
942 if (security_info_sent & SECINFO_SACL) {
943 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
944 return NT_STATUS_ACCESS_DENIED;
945 }
946 /* Convert all the generic bits. */
947 if (psd->sacl) {
948 security_acl_map_generic(psd->sacl, &file_generic_mapping);
949 }
950 }
951
952 canonicalize_inheritance_bits(psd);
953
954 if (DEBUGLEVEL >= 10) {
955 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
956 NDR_PRINT_DEBUG(security_descriptor, psd);
957 }
958
959 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
960
961 TALLOC_FREE(psd);
962
963 return status;
964 }
965
966 /****************************************************************************
967 Internal fn to set security descriptors from a data blob.
968 ****************************************************************************/
969
970 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
971 uint32_t security_info_sent)
972 {
973 struct security_descriptor *psd = NULL;
974 NTSTATUS status;
975
976 if (sd_len == 0) {
977 return NT_STATUS_INVALID_PARAMETER;
978 }
979
980 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
981
982 if (!NT_STATUS_IS_OK(status)) {
983 return status;
984 }
985
986 return set_sd(fsp, psd, security_info_sent);
987 }
988
989 /****************************************************************************
990 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
991 ****************************************************************************/
992
993 static void call_nt_transact_create(connection_struct *conn,
994 struct smb_request *req,
995 uint16_t **ppsetup, uint32_t setup_count,
996 char **ppparams, uint32_t parameter_count,
997 char **ppdata, uint32_t data_count,
998 uint32_t max_data_count)
999 {
1000 struct smb_filename *smb_fname = NULL;
1001 char *fname = NULL;
1002 char *params = *ppparams;
1003 char *data = *ppdata;
1004 /* Breakout the oplock request bits so we can set the reply bits separately. */
1005 uint32_t fattr=0;
1006 off_t file_len = 0;
1007 int info = 0;
1008 files_struct *fsp = NULL;
1009 char *p = NULL;
1010 uint32_t flags;
1011 uint32_t access_mask;
1012 uint32_t file_attributes;
1013 uint32_t share_access;
1014 uint32_t create_disposition;
1015 uint32_t create_options;
1016 uint32_t sd_len;
1017 struct security_descriptor *sd = NULL;
1018 uint32_t ea_len;
1019 uint16_t root_dir_fid;
1020 struct timespec create_timespec;
1021 struct timespec c_timespec;
1022 struct timespec a_timespec;
1023 struct timespec m_timespec;
1024 struct ea_list *ea_list = NULL;
1025 NTSTATUS status;
1026 size_t param_len;
1027 uint64_t allocation_size;
1028 int oplock_request;
1029 uint8_t oplock_granted;
1030 struct case_semantics_state *case_state = NULL;
1031 uint32_t ucf_flags;
1032 TALLOC_CTX *ctx = talloc_tos();
1033
1034 DEBUG(5,("call_nt_transact_create\n"));
1035
1036 /*
1037 * If it's an IPC, use the pipe handler.
1038 */
1039
1040 if (IS_IPC(conn)) {
1041 if (lp_nt_pipe_support()) {
1042 do_nt_transact_create_pipe(
1043 conn, req,
1044 ppsetup, setup_count,
1045 ppparams, parameter_count,
1046 ppdata, data_count);
1047 goto out;
1048 }
1049 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1050 goto out;
1051 }
1052
1053 /*
1054 * Ensure minimum number of parameters sent.
1055 */
1056
1057 if(parameter_count < 54) {
1058 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1059 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1060 goto out;
1061 }
1062
1063 flags = IVAL(params,0);
1064 access_mask = IVAL(params,8);
1065 file_attributes = IVAL(params,20);
1066 share_access = IVAL(params,24);
1067 create_disposition = IVAL(params,28);
1068 create_options = IVAL(params,32);
1069 sd_len = IVAL(params,36);
1070 ea_len = IVAL(params,40);
1071 root_dir_fid = (uint16_t)IVAL(params,4);
1072 allocation_size = BVAL(params,12);
1073
1074 /*
1075 * we need to remove ignored bits when they come directly from the client
1076 * because we reuse some of them for internal stuff
1077 */
1078 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1079
1080 if (req->posix_pathnames) {
1081 srvstr_get_path_posix(ctx,
1082 params,
1083 req->flags2,
1084 &fname,
1085 params+53,
1086 parameter_count-53,
1087 STR_TERMINATE,
1088 &status);
1089 } else {
1090 srvstr_get_path(ctx,
1091 params,
1092 req->flags2,
1093 &fname,
1094 params+53,
1095 parameter_count-53,
1096 STR_TERMINATE,
1097 &status);
1098 }
1099 if (!NT_STATUS_IS_OK(status)) {
1100 reply_nterror(req, status);
1101 goto out;
1102 }
1103
1104 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1105 case_state = set_posix_case_semantics(ctx, conn);
1106 if (!case_state) {
1107 reply_nterror(req, NT_STATUS_NO_MEMORY);
1108 goto out;
1109 }
1110 }
1111
1112 ucf_flags = filename_create_ucf_flags(req, create_disposition);
1113 status = filename_convert(ctx,
1114 conn,
1115 fname,
1116 ucf_flags,
1117 NULL,
1118 &smb_fname);
1119
1120 TALLOC_FREE(case_state);
1121
1122 if (!NT_STATUS_IS_OK(status)) {
1123 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1124 reply_botherror(req,
1125 NT_STATUS_PATH_NOT_COVERED,
1126 ERRSRV, ERRbadpath);
1127 goto out;
1128 }
1129 reply_nterror(req, status);
1130 goto out;
1131 }
1132
1133 /* Ensure the data_len is correct for the sd and ea values given. */
1134 if ((ea_len + sd_len > data_count)
1135 || (ea_len > data_count) || (sd_len > data_count)
1136 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1137 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1138 "%u, data_count = %u\n", (unsigned int)ea_len,
1139 (unsigned int)sd_len, (unsigned int)data_count));
1140 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1141 goto out;
1142 }
1143
1144 if (sd_len) {
1145 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1146 sd_len));
1147
1148 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1149 &sd);
1150 if (!NT_STATUS_IS_OK(status)) {
1151 DEBUG(10, ("call_nt_transact_create: "
1152 "unmarshall_sec_desc failed: %s\n",
1153 nt_errstr(status)));
1154 reply_nterror(req, status);
1155 goto out;
1156 }
1157 }
1158
1159 if (ea_len) {
1160 if (!lp_ea_support(SNUM(conn))) {
1161 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1162 "EA's not supported.\n",
1163 (unsigned int)ea_len));
1164 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1165 goto out;
1166 }
1167
1168 if (ea_len < 10) {
1169 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1170 "too small (should be more than 10)\n",
1171 (unsigned int)ea_len ));
1172 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1173 goto out;
1174 }
1175
1176 /* We have already checked that ea_len <= data_count here. */
1177 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1178 ea_len);
1179 if (ea_list == NULL) {
1180 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1181 goto out;
1182 }
1183
1184 if (!req->posix_pathnames &&
1185 ea_list_has_invalid_name(ea_list)) {
1186 /* Realloc the size of parameters and data we will return */
1187 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1188 /* Extended response is 32 more byyes. */
1189 param_len = 101;
1190 } else {
1191 param_len = 69;
1192 }
1193 params = nttrans_realloc(ppparams, param_len);
1194 if(params == NULL) {
1195 reply_nterror(req, NT_STATUS_NO_MEMORY);
1196 goto out;
1197 }
1198
1199 memset(params, '\0', param_len);
1200 send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1201 params, param_len, NULL, 0);
1202 goto out;
1203 }
1204 }
1205
1206 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1207 if (oplock_request) {
1208 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1209 ? BATCH_OPLOCK : 0;
1210 }
1211
1212 /*
1213 * Bug #6898 - clients using Windows opens should
1214 * never be able to set this attribute into the
1215 * VFS.
1216 */
1217 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1218
1219 status = SMB_VFS_CREATE_FILE(
1220 conn, /* conn */
1221 req, /* req */
1222 root_dir_fid, /* root_dir_fid */
1223 smb_fname, /* fname */
1224 access_mask, /* access_mask */
1225 share_access, /* share_access */
1226 create_disposition, /* create_disposition*/
1227 create_options, /* create_options */
1228 file_attributes, /* file_attributes */
1229 oplock_request, /* oplock_request */
1230 NULL, /* lease */
1231 allocation_size, /* allocation_size */
1232 0, /* private_flags */
1233 sd, /* sd */
1234 ea_list, /* ea_list */
1235 &fsp, /* result */
1236 &info, /* pinfo */
1237 NULL, NULL); /* create context */
1238
1239 if(!NT_STATUS_IS_OK(status)) {
1240 if (open_was_deferred(req->xconn, req->mid)) {
1241 /* We have re-scheduled this call, no error. */
1242 return;
1243 }
1244 reply_openerror(req, status);
1245 goto out;
1246 }
1247
1248 /* Ensure we're pointing at the correct stat struct. */
1249 TALLOC_FREE(smb_fname);
1250 smb_fname = fsp->fsp_name;
1251
1252 /*
1253 * If the caller set the extended oplock request bit
1254 * and we granted one (by whatever means) - set the
1255 * correct bit for extended oplock reply.
1256 */
1257
1258 if (oplock_request &&
1259 (lp_fake_oplocks(SNUM(conn))
1260 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1261
1262 /*
1263 * Exclusive oplock granted
1264 */
1265
1266 if (flags & REQUEST_BATCH_OPLOCK) {
1267 oplock_granted = BATCH_OPLOCK_RETURN;
1268 } else {
1269 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1270 }
1271 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1272 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1273 } else {
1274 oplock_granted = NO_OPLOCK_RETURN;
1275 }
1276
1277 file_len = smb_fname->st.st_ex_size;
1278
1279 /* Realloc the size of parameters and data we will return */
1280 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1281 /* Extended response is 32 more byyes. */
1282 param_len = 101;
1283 } else {
1284 param_len = 69;
1285 }
1286 params = nttrans_realloc(ppparams, param_len);
1287 if(params == NULL) {
1288 reply_nterror(req, NT_STATUS_NO_MEMORY);
1289 goto out;
1290 }
1291
1292 p = params;
1293 SCVAL(p, 0, oplock_granted);
1294
1295 p += 2;
1296 SSVAL(p,0,fsp->fnum);
1297 p += 2;
1298 if ((create_disposition == FILE_SUPERSEDE)
1299 && (info == FILE_WAS_OVERWRITTEN)) {
1300 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1301 } else {
1302 SIVAL(p,0,info);
1303 }
1304 p += 8;
1305
1306 fattr = dos_mode(conn, smb_fname);
1307 if (fattr == 0) {
1308 fattr = FILE_ATTRIBUTE_NORMAL;
1309 }
1310
1311 /* Create time. */
1312 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1313 a_timespec = smb_fname->st.st_ex_atime;
1314 m_timespec = smb_fname->st.st_ex_mtime;
1315 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1316
1317 if (lp_dos_filetime_resolution(SNUM(conn))) {
1318 dos_filetime_timespec(&create_timespec);
1319 dos_filetime_timespec(&a_timespec);
1320 dos_filetime_timespec(&m_timespec);
1321 dos_filetime_timespec(&c_timespec);
1322 }
1323
1324 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1325 p += 8;
1326 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1327 p += 8;
1328 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1329 p += 8;
1330 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1331 p += 8;
1332 SIVAL(p,0,fattr); /* File Attributes. */
1333 p += 4;
1334 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1335 p += 8;
1336 SOFF_T(p,0,file_len);
1337 p += 8;
1338 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1339 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1340 unsigned int num_streams = 0;
1341 struct stream_struct *streams = NULL;
1342
1343 if (lp_ea_support(SNUM(conn))) {
1344 size_t num_names = 0;
1345 /* Do we have any EA's ? */
1346 status = get_ea_names_from_file(
1347 ctx, conn, fsp, smb_fname, NULL, &num_names);
1348 if (NT_STATUS_IS_OK(status) && num_names) {
1349 file_status &= ~NO_EAS;
1350 }
1351 }
1352
1353 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
1354 &num_streams, &streams);
1355 /* There is always one stream, ::$DATA. */
1356 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1357 file_status &= ~NO_SUBSTREAMS;
1358 }
1359 TALLOC_FREE(streams);
1360 SSVAL(p,2,file_status);
1361 }
1362 p += 4;
1363 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1364
1365 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1366 uint32_t perms = 0;
1367 p += 25;
1368 if (fsp->is_directory ||
1369 fsp->can_write ||
1370 can_write_to_file(conn, smb_fname)) {
1371 perms = FILE_GENERIC_ALL;
1372 } else {
1373 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1374 }
1375 SIVAL(p,0,perms);
1376 }
1377
1378 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1379 smb_fname_str_dbg(smb_fname)));
1380
1381 /* Send the required number of replies */
1382 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1383 out:
1384 return;
1385 }
1386
1387 /****************************************************************************
1388 Reply to a NT CANCEL request.
1389 conn POINTER CAN BE NULL HERE !
1390 ****************************************************************************/
1391
1392 void reply_ntcancel(struct smb_request *req)
1393 {
1394 struct smbXsrv_connection *xconn = req->xconn;
1395 struct smbd_server_connection *sconn = req->sconn;
1396
1397 /*
1398 * Go through and cancel any pending change notifies.
1399 */
1400
1401 START_PROFILE(SMBntcancel);
1402 srv_cancel_sign_response(xconn);
1403 remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1404 remove_pending_lock_requests_by_mid_smb1(sconn, req->mid);
1405
1406 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1407 (unsigned long long)req->mid));
1408
1409 END_PROFILE(SMBntcancel);
1410 return;
1411 }
1412
1413 /****************************************************************************
1414 Copy a file.
1415 ****************************************************************************/
1416
1417 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1418 connection_struct *conn,
1419 struct smb_request *req,
1420 struct smb_filename *smb_fname_src,
1421 struct smb_filename *smb_fname_dst,
1422 uint32_t attrs)
1423 {
1424 files_struct *fsp1,*fsp2;
1425 uint32_t fattr;
1426 int info;
1427 off_t ret=-1;
1428 NTSTATUS status = NT_STATUS_OK;
1429 char *parent;
1430
1431 if (!CAN_WRITE(conn)) {
1432 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1433 goto out;
1434 }
1435
1436 /* Source must already exist. */
1437 if (!VALID_STAT(smb_fname_src->st)) {
1438 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1439 goto out;
1440 }
1441
1442 /* Ensure attributes match. */
1443 fattr = dos_mode(conn, smb_fname_src);
1444 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1445 status = NT_STATUS_NO_SUCH_FILE;
1446 goto out;
1447 }
1448
1449 /* Disallow if dst file already exists. */
1450 if (VALID_STAT(smb_fname_dst->st)) {
1451 status = NT_STATUS_OBJECT_NAME_COLLISION;
1452 goto out;
1453 }
1454
1455 /* No links from a directory. */
1456 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1457 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1458 goto out;
1459 }
1460
1461 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1462 smb_fname_str_dbg(smb_fname_src),
1463 smb_fname_str_dbg(smb_fname_dst)));
1464
1465 status = SMB_VFS_CREATE_FILE(
1466 conn, /* conn */
1467 req, /* req */
1468 0, /* root_dir_fid */
1469 smb_fname_src, /* fname */
1470 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1471 FILE_READ_EA, /* access_mask */
1472 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1473 FILE_SHARE_DELETE),
1474 FILE_OPEN, /* create_disposition*/
1475 0, /* create_options */
1476 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1477 NO_OPLOCK, /* oplock_request */
1478 NULL, /* lease */
1479 0, /* allocation_size */
1480 0, /* private_flags */
1481 NULL, /* sd */
1482 NULL, /* ea_list */
1483 &fsp1, /* result */
1484 &info, /* pinfo */
1485 NULL, NULL); /* create context */
1486
1487 if (!NT_STATUS_IS_OK(status)) {
1488 goto out;
1489 }
1490
1491 status = SMB_VFS_CREATE_FILE(
1492 conn, /* conn */
1493 req, /* req */
1494 0, /* root_dir_fid */
1495 smb_fname_dst, /* fname */
1496 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1497 FILE_WRITE_EA, /* access_mask */
1498 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1499 FILE_SHARE_DELETE),
1500 FILE_CREATE, /* create_disposition*/
1501 0, /* create_options */
1502 fattr, /* file_attributes */
1503 NO_OPLOCK, /* oplock_request */
1504 NULL, /* lease */
1505 0, /* allocation_size */
1506 0, /* private_flags */
1507 NULL, /* sd */
1508 NULL, /* ea_list */
1509 &fsp2, /* result */
1510 &info, /* pinfo */
1511 NULL, NULL); /* create context */
1512
1513 if (!NT_STATUS_IS_OK(status)) {
1514 close_file(NULL, fsp1, ERROR_CLOSE);
1515 goto out;
1516 }
1517
1518 if (smb_fname_src->st.st_ex_size) {
1519 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1520 }
1521
1522 /*
1523 * As we are opening fsp1 read-only we only expect
1524 * an error on close on fsp2 if we are out of space.
1525 * Thus we don't look at the error return from the
1526 * close of fsp1.
1527 */
1528 close_file(NULL, fsp1, NORMAL_CLOSE);
1529
1530 /* Ensure the modtime is set correctly on the destination file. */
1531 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1532
1533 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1534
1535 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1536 creates the file. This isn't the correct thing to do in the copy
1537 case. JRA */
1538 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1539 NULL)) {
1540 status = NT_STATUS_NO_MEMORY;
1541 goto out;
1542 }
1543 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1544 TALLOC_FREE(parent);
1545
1546 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1547 status = NT_STATUS_DISK_FULL;
1548 goto out;
1549 }
1550 out:
1551 if (!NT_STATUS_IS_OK(status)) {
1552 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1553 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1554 smb_fname_str_dbg(smb_fname_dst)));
1555 }
1556
1557 return status;
1558 }
1559
1560 /****************************************************************************
1561 Reply to a NT rename request.
1562 ****************************************************************************/
1563
1564 void reply_ntrename(struct smb_request *req)
1565 {
1566 connection_struct *conn = req->conn;
1567 struct smb_filename *smb_fname_old = NULL;
1568 struct smb_filename *smb_fname_new = NULL;
1569 char *oldname = NULL;
1570 char *newname = NULL;
1571 const char *p;
1572 NTSTATUS status;
1573 bool src_has_wcard = False;
1574 bool dest_has_wcard = False;
1575 uint32_t attrs;
1576 uint32_t ucf_flags_src = ucf_flags_from_smb_request(req);
1577 uint32_t ucf_flags_dst = ucf_flags_from_smb_request(req);
1578 uint16_t rename_type;
1579 TALLOC_CTX *ctx = talloc_tos();
1580 bool stream_rename = false;
1581
1582 START_PROFILE(SMBntrename);
1583
1584 if (req->wct < 4) {
1585 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1586 goto out;
1587 }
1588
1589 attrs = SVAL(req->vwv+0, 0);
1590 rename_type = SVAL(req->vwv+1, 0);
1591
1592 p = (const char *)req->buf + 1;
1593 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1594 &status, &src_has_wcard);
1595 if (!NT_STATUS_IS_OK(status)) {
1596 reply_nterror(req, status);
1597 goto out;
1598 }
1599
1600 if (!req->posix_pathnames && ms_has_wild(oldname)) {
1601 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1602 goto out;
1603 }
1604
1605 p++;
1606 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1607 &status, &dest_has_wcard);
1608 if (!NT_STATUS_IS_OK(status)) {
1609 reply_nterror(req, status);
1610 goto out;
1611 }
1612
1613 if (!req->posix_pathnames) {
1614 /* The newname must begin with a ':' if the
1615 oldname contains a ':'. */
1616 if (strchr_m(oldname, ':')) {
1617 if (newname[0] != ':') {
1618 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1619 goto out;
1620 }
1621 stream_rename = true;
1622 }
1623 }
1624
1625 /*
1626 * If this is a rename operation, allow wildcards and save the
1627 * destination's last component.
1628 */
1629 if (rename_type == RENAME_FLAG_RENAME) {
1630 ucf_flags_src |= UCF_COND_ALLOW_WCARD_LCOMP;
1631 ucf_flags_dst |= UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1632 }
1633
1634 /* rename_internals() calls unix_convert(), so don't call it here. */
1635 status = filename_convert(ctx, conn,
1636 oldname,
1637 ucf_flags_src,
1638 NULL,
1639 &smb_fname_old);
1640 if (!NT_STATUS_IS_OK(status)) {
1641 if (NT_STATUS_EQUAL(status,
1642 NT_STATUS_PATH_NOT_COVERED)) {
1643 reply_botherror(req,
1644 NT_STATUS_PATH_NOT_COVERED,
1645 ERRSRV, ERRbadpath);
1646 goto out;
1647 }
1648 reply_nterror(req, status);
1649 goto out;
1650 }
1651
1652 status = filename_convert(ctx, conn,
1653 newname,
1654 ucf_flags_dst,
1655 &dest_has_wcard,
1656 &smb_fname_new);
1657 if (!NT_STATUS_IS_OK(status)) {
1658 if (NT_STATUS_EQUAL(status,
1659 NT_STATUS_PATH_NOT_COVERED)) {
1660 reply_botherror(req,
1661 NT_STATUS_PATH_NOT_COVERED,
1662 ERRSRV, ERRbadpath);
1663 goto out;
1664 }
1665 reply_nterror(req, status);
1666 goto out;
1667 }
1668
1669 if (stream_rename) {
1670 /* smb_fname_new must be the same as smb_fname_old. */
1671 TALLOC_FREE(smb_fname_new->base_name);
1672 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1673 smb_fname_old->base_name);
1674 if (!smb_fname_new->base_name) {
1675 reply_nterror(req, NT_STATUS_NO_MEMORY);
1676 goto out;
1677 }
1678 }
1679
1680 DEBUG(3,("reply_ntrename: %s -> %s\n",
1681 smb_fname_str_dbg(smb_fname_old),
1682 smb_fname_str_dbg(smb_fname_new)));
1683
1684 switch(rename_type) {
1685 case RENAME_FLAG_RENAME:
1686 status = rename_internals(ctx, conn, req,
1687 smb_fname_old, smb_fname_new,
1688 attrs, False, src_has_wcard,
1689 dest_has_wcard,
1690 DELETE_ACCESS);
1691 break;
1692 case RENAME_FLAG_HARD_LINK:
1693 if (src_has_wcard || dest_has_wcard) {
1694 /* No wildcards. */
1695 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1696 } else {
1697 status = hardlink_internals(ctx, conn,
1698 req,
1699 false,
1700 smb_fname_old,
1701 smb_fname_new);
1702 }
1703 break;
1704 case RENAME_FLAG_COPY:
1705 if (src_has_wcard || dest_has_wcard) {
1706 /* No wildcards. */
1707 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1708 } else {
1709 status = copy_internals(ctx, conn, req,
1710 smb_fname_old,
1711 smb_fname_new,
1712 attrs);
1713 }
1714 break;
1715 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1716 status = NT_STATUS_INVALID_PARAMETER;
1717 break;
1718 default:
1719 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1720 break;
1721 }
1722
1723 if (!NT_STATUS_IS_OK(status)) {
1724 if (open_was_deferred(req->xconn, req->mid)) {
1725 /* We have re-scheduled this call. */
1726 goto out;
1727 }
1728
1729 reply_nterror(req, status);
1730 goto out;
1731 }
1732
1733 reply_outbuf(req, 0, 0);
1734 out:
1735 END_PROFILE(SMBntrename);
1736 return;
1737 }
1738
1739 /****************************************************************************
1740 Reply to a notify change - queue the request and
1741 don't allow a directory to be opened.
1742 ****************************************************************************/
1743
1744 static void smbd_smb1_notify_reply(struct smb_request *req,
1745 NTSTATUS error_code,
1746 uint8_t *buf, size_t len)
1747 {
1748 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1749 }
1750
1751 static void call_nt_transact_notify_change(connection_struct *conn,
1752 struct smb_request *req,
1753 uint16_t **ppsetup,
1754 uint32_t setup_count,
1755 char **ppparams,
1756 uint32_t parameter_count,
1757 char **ppdata, uint32_t data_count,
1758 uint32_t max_data_count,
1759 uint32_t max_param_count)
1760 {
1761 uint16_t *setup = *ppsetup;
1762 files_struct *fsp;
1763 uint32_t filter;
1764 NTSTATUS status;
1765 bool recursive;
1766
1767 if(setup_count < 6) {
1768 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1769 return;
1770 }
1771
1772 fsp = file_fsp(req, SVAL(setup,4));
1773 filter = IVAL(setup, 0);
1774 recursive = (SVAL(setup, 6) != 0) ? True : False;
1775
1776 DEBUG(3,("call_nt_transact_notify_change\n"));
1777
1778 if(!fsp) {
1779 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1780 return;
1781 }
1782
1783 {
1784 char *filter_string;
1785
1786 if (!(filter_string = notify_filter_string(NULL, filter))) {
1787 reply_nterror(req,NT_STATUS_NO_MEMORY);
1788 return;
1789 }
1790
1791 DEBUG(3,("call_nt_transact_notify_change: notify change "
1792 "called on %s, filter = %s, recursive = %d\n",
1793 fsp_str_dbg(fsp), filter_string, recursive));
1794
1795 TALLOC_FREE(filter_string);
1796 }
1797
1798 if((!fsp->is_directory) || (conn != fsp->conn)) {
1799 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1800 return;
1801 }
1802
1803 if (fsp->notify == NULL) {
1804
1805 status = change_notify_create(fsp, filter, recursive);
1806
1807 if (!NT_STATUS_IS_OK(status)) {
1808 DEBUG(10, ("change_notify_create returned %s\n",
1809 nt_errstr(status)));
1810 reply_nterror(req, status);
1811 return;
1812 }
1813 }
1814
1815 if (change_notify_fsp_has_changes(fsp)) {
1816
1817 /*
1818 * We've got changes pending, respond immediately
1819 */
1820
1821 /*
1822 * TODO: write a torture test to check the filtering behaviour
1823 * here.
1824 */
1825
1826 change_notify_reply(req,
1827 NT_STATUS_OK,
1828 max_param_count,
1829 fsp->notify,
1830 smbd_smb1_notify_reply);
1831
1832 /*
1833 * change_notify_reply() above has independently sent its
1834 * results
1835 */
1836 return;
1837 }
1838
1839 /*
1840 * No changes pending, queue the request
1841 */
1842
1843 status = change_notify_add_request(req,
1844 max_param_count,
1845 filter,
1846 recursive, fsp,
1847 smbd_smb1_notify_reply);
1848 if (!NT_STATUS_IS_OK(status)) {
1849 reply_nterror(req, status);
1850 }
1851 return;
1852 }
1853
1854 /****************************************************************************
1855 Reply to an NT transact rename command.
1856 ****************************************************************************/
1857
1858 static void call_nt_transact_rename(connection_struct *conn,
1859 struct smb_request *req,
1860 uint16_t **ppsetup, uint32_t setup_count,
1861 char **ppparams, uint32_t parameter_count,
1862 char **ppdata, uint32_t data_count,
1863 uint32_t max_data_count)
1864 {
1865 char *params = *ppparams;
1866 char *new_name = NULL;
1867 files_struct *fsp = NULL;
1868 bool dest_has_wcard = False;
1869 NTSTATUS status;
1870 TALLOC_CTX *ctx = talloc_tos();
1871
1872 if(parameter_count < 5) {
1873 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1874 return;
1875 }
1876
1877 fsp = file_fsp(req, SVAL(params, 0));
1878 if (!check_fsp(conn, req, fsp)) {
1879 return;
1880 }
1881 if (req->posix_pathnames) {
1882 srvstr_get_path_wcard_posix(ctx,
1883 params,
1884 req->flags2,
1885 &new_name,
1886 params+4,
1887 parameter_count - 4,
1888 STR_TERMINATE,
1889 &status,
1890 &dest_has_wcard);
1891 } else {
1892 srvstr_get_path_wcard(ctx,
1893 params,
1894 req->flags2,
1895 &new_name,
1896 params+4,
1897 parameter_count - 4,
1898 STR_TERMINATE,
1899 &status,
1900 &dest_has_wcard);
1901 }
1902
1903 if (!NT_STATUS_IS_OK(status)) {
1904 reply_nterror(req, status);
1905 return;
1906 }
1907
1908 /*
1909 * W2K3 ignores this request as the RAW-RENAME test
1910 * demonstrates, so we do.
1911 */
1912 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1913
1914 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1915 fsp_str_dbg(fsp), new_name));
1916
1917 return;
1918 }
1919
1920 /******************************************************************************
1921 Fake up a completely empty SD.
1922 *******************************************************************************/
1923
1924 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1925 {
1926 size_t sd_size;
1927
1928 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1929 if(!*ppsd) {
1930 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1931 return NT_STATUS_NO_MEMORY;
1932 }
1933
1934 return NT_STATUS_OK;
1935 }
1936
1937 /****************************************************************************
1938 Reply to query a security descriptor.
1939 Callable from SMB1 and SMB2.
1940 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1941 the required size.
1942 ****************************************************************************/
1943
1944 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1945 TALLOC_CTX *mem_ctx,
1946 files_struct *fsp,
1947 uint32_t security_info_wanted,
1948 uint32_t max_data_count,
1949 uint8_t **ppmarshalled_sd,
1950 size_t *psd_size)
1951 {
1952 NTSTATUS status;
1953 struct security_descriptor *psd = NULL;
1954 TALLOC_CTX *frame = talloc_stackframe();
1955
1956 /*
1957 * Get the permissions to return.
1958 */
1959
1960 if ((security_info_wanted & SECINFO_SACL) &&
1961 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1962 DEBUG(10, ("Access to SACL denied.\n"));
1963 TALLOC_FREE(frame);
1964 return NT_STATUS_ACCESS_DENIED;
1965 }
1966
1967 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1968 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1969 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1970 TALLOC_FREE(frame);
1971 return NT_STATUS_ACCESS_DENIED;
1972 }
1973
1974 if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
1975 DEBUG(10, ("ACL get on symlink %s denied.\n",
1976 fsp_str_dbg(fsp)));
1977 TALLOC_FREE(frame);
1978 return NT_STATUS_ACCESS_DENIED;
1979 }
1980
1981 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1982 SECINFO_GROUP|SECINFO_SACL)) {
1983 /* Don't return SECINFO_LABEL if anything else was
1984 requested. See bug #8458. */
1985 security_info_wanted &= ~SECINFO_LABEL;
1986 }
1987
1988 if (!lp_nt_acl_support(SNUM(conn))) {
1989 status = get_null_nt_acl(frame, &psd);
1990 } else if (security_info_wanted & SECINFO_LABEL) {
1991 /* Like W2K3 return a null object. */
1992 status = get_null_nt_acl(frame, &psd);
1993 } else {
1994 status = SMB_VFS_FGET_NT_ACL(
1995 fsp, security_info_wanted, frame, &psd);
1996 }
1997 if (!NT_STATUS_IS_OK(status)) {
1998 TALLOC_FREE(frame);
1999 return status;
2000 }
2001
2002 if (!(security_info_wanted & SECINFO_OWNER)) {
2003 psd->owner_sid = NULL;
2004 }
2005 if (!(security_info_wanted & SECINFO_GROUP)) {
2006 psd->group_sid = NULL;
2007 }
2008 if (!(security_info_wanted & SECINFO_DACL)) {
2009 psd->type &= ~SEC_DESC_DACL_PRESENT;
2010 psd->dacl = NULL;
2011 }
2012 if (!(security_info_wanted & SECINFO_SACL)) {
2013 psd->type &= ~SEC_DESC_SACL_PRESENT;
2014 psd->sacl = NULL;
2015 }
2016
2017 /* If the SACL/DACL is NULL, but was requested, we mark that it is
2018 * present in the reply to match Windows behavior */
2019 if (psd->sacl == NULL &&
2020 security_info_wanted & SECINFO_SACL)
2021 psd->type |= SEC_DESC_SACL_PRESENT;
2022 if (psd->dacl == NULL &&
2023 security_info_wanted & SECINFO_DACL)
2024 psd->type |= SEC_DESC_DACL_PRESENT;
2025
2026 if (security_info_wanted & SECINFO_LABEL) {
2027 /* Like W2K3 return a null object. */
2028 psd->owner_sid = NULL;
2029 psd->group_sid = NULL;
2030 psd->dacl = NULL;
2031 psd->sacl = NULL;
2032 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
2033 }
2034
2035 *psd_size = ndr_size_security_descriptor(psd, 0);
2036
2037 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
2038 (unsigned long)*psd_size));
2039
2040 if (DEBUGLEVEL >= 10) {
2041 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
2042 fsp_str_dbg(fsp)));
2043 NDR_PRINT_DEBUG(security_descriptor, psd);
2044 }
2045
2046 if (max_data_count < *psd_size) {
2047 TALLOC_FREE(frame);
2048 return NT_STATUS_BUFFER_TOO_SMALL;
2049 }
2050
2051 status = marshall_sec_desc(mem_ctx, psd,
2052 ppmarshalled_sd, psd_size);
2053
2054 if (!NT_STATUS_IS_OK(status)) {
2055 TALLOC_FREE(frame);
2056 return status;
2057 }
2058
2059 TALLOC_FREE(frame);
2060 return NT_STATUS_OK;
2061 }
2062
2063 /****************************************************************************
2064 SMB1 reply to query a security descriptor.
2065 ****************************************************************************/
2066
2067 static void call_nt_transact_query_security_desc(connection_struct *conn,
2068 struct smb_request *req,
2069 uint16_t **ppsetup,
2070 uint32_t setup_count,
2071 char **ppparams,
2072 uint32_t parameter_count,
2073 char **ppdata,
2074 uint32_t data_count,
2075 uint32_t max_data_count)
2076 {
2077 char *params = *ppparams;
2078 char *data = *ppdata;
2079 size_t sd_size = 0;
2080 uint32_t security_info_wanted;
2081 files_struct *fsp = NULL;
2082 NTSTATUS status;
2083 uint8_t *marshalled_sd = NULL;
2084
2085 if(parameter_count < 8) {
2086 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2087 return;
2088 }
2089
2090 fsp = file_fsp(req, SVAL(params,0));
2091 if(!fsp) {
2092 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2093 return;
2094 }
2095
2096 security_info_wanted = IVAL(params,4);
2097
2098 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2099 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2100 (unsigned int)security_info_wanted));
2101
2102 params = nttrans_realloc(ppparams, 4);
2103 if(params == NULL) {
2104 reply_nterror(req, NT_STATUS_NO_MEMORY);
2105 return;
2106 }
2107
2108 /*
2109 * Get the permissions to return.
2110 */
2111
2112 status = smbd_do_query_security_desc(conn,
2113 talloc_tos(),
2114 fsp,
2115 security_info_wanted &
2116 SMB_SUPPORTED_SECINFO_FLAGS,
2117 max_data_count,
2118 &marshalled_sd,
2119 &sd_size);
2120
2121 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2122 SIVAL(params,0,(uint32_t)sd_size);
2123 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2124 params, 4, NULL, 0);
2125 return;
2126 }
2127
2128 if (!NT_STATUS_IS_OK(status)) {
2129 reply_nterror(req, status);
2130 return;
2131 }
2132
2133 SMB_ASSERT(sd_size > 0);
2134
2135 SIVAL(params,0,(uint32_t)sd_size);
2136
2137 if (max_data_count < sd_size) {
2138 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2139 params, 4, NULL, 0);
2140 return;
2141 }
2142
2143 /*
2144 * Allocate the data we will return.
2145 */
2146
2147 data = nttrans_realloc(ppdata, sd_size);
2148 if(data == NULL) {
2149 reply_nterror(req, NT_STATUS_NO_MEMORY);
2150 return;
2151 }
2152
2153 memcpy(data, marshalled_sd, sd_size);
2154
2155 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2156
2157 return;
2158 }
2159
2160 /****************************************************************************
2161 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2162 ****************************************************************************/
2163
2164 static void call_nt_transact_set_security_desc(connection_struct *conn,
2165 struct smb_request *req,
2166 uint16_t **ppsetup,
2167 uint32_t setup_count,
2168 char **ppparams,
2169 uint32_t parameter_count,
2170 char **ppdata,
2171 uint32_t data_count,
2172 uint32_t max_data_count)
2173 {
2174 char *params= *ppparams;
2175 char *data = *ppdata;
2176 files_struct *fsp = NULL;
2177 uint32_t security_info_sent = 0;
2178 NTSTATUS status;
2179
2180 if(parameter_count < 8) {
2181 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2182 return;
2183 }
2184
2185 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2186 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2187 return;
2188 }
2189
2190 if (!CAN_WRITE(fsp->conn)) {
2191 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2192 return;
2193 }
2194
2195 if(!lp_nt_acl_support(SNUM(conn))) {
2196 goto done;
2197 }
2198
2199 security_info_sent = IVAL(params,4);
2200
2201 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2202 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2203
2204 if (data_count == 0) {
2205 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2206 return;
2207 }
2208
2209 status = set_sd_blob(fsp, (uint8_t *)data, data_count,
2210 security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
2211 if (!NT_STATUS_IS_OK(status)) {
2212 reply_nterror(req, status);
2213 return;
2214 }
2215
2216 done:
2217 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2218 return;
2219 }
2220
2221 /****************************************************************************
2222 Reply to NT IOCTL
2223 ****************************************************************************/
2224
2225 static void call_nt_transact_ioctl(connection_struct *conn,
2226 struct smb_request *req,
2227 uint16_t **ppsetup, uint32_t setup_count,
2228 char **ppparams, uint32_t parameter_count,
2229 char **ppdata, uint32_t data_count,
2230 uint32_t max_data_count)
2231 {
2232 NTSTATUS status;
2233 uint32_t function;
2234 uint16_t fidnum;
2235 files_struct *fsp;
2236 uint8_t isFSctl;
2237 uint8_t compfilter;
2238 char *out_data = NULL;
2239 uint32_t out_data_len = 0;
2240 char *pdata = *ppdata;
2241 TALLOC_CTX *ctx = talloc_tos();
2242
2243 if (setup_count != 8) {
2244 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2245 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2246 return;
2247 }
2248
2249 function = IVAL(*ppsetup, 0);
2250 fidnum = SVAL(*ppsetup, 4);
2251 isFSctl = CVAL(*ppsetup, 6);
2252 compfilter = CVAL(*ppsetup, 7);
2253
2254 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2255 function, fidnum, isFSctl, compfilter));
2256
2257 fsp=file_fsp(req, fidnum);
2258
2259 /*
2260 * We don't really implement IOCTLs, especially on files.
2261 */
2262 if (!isFSctl) {
2263 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2264 isFSctl));
2265 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2266 return;
2267 }
2268
2269 /* Has to be for an open file! */
2270 if (!check_fsp_open(conn, req, fsp)) {
2271 return;
2272 }
2273
2274 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2275
2276 /*
2277 * out_data might be allocated by the VFS module, but talloc should be
2278 * used, and should be cleaned up when the request ends.
2279 */
2280 status = SMB_VFS_FSCTL(fsp,
2281 ctx,
2282 function,
2283 req->flags2,
2284 (uint8_t *)pdata,
2285 data_count,
2286 (uint8_t **)&out_data,
2287 max_data_count,
2288 &out_data_len);
2289 if (!NT_STATUS_IS_OK(status)) {
2290 reply_nterror(req, status);
2291 } else {
2292 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2293 }
2294 }
2295
2296
2297 #ifdef HAVE_SYS_QUOTAS
2298 static enum ndr_err_code fill_qtlist_from_sids(TALLOC_CTX *mem_ctx,
2299 struct files_struct *fsp,
2300 SMB_NTQUOTA_HANDLE *qt_handle,
2301 struct dom_sid *sids,
2302 uint32_t elems)
2303 {
2304 uint32_t i;
2305 TALLOC_CTX *list_ctx = NULL;
2306
2307 list_ctx = talloc_init("quota_sid_list");
2308
2309 if (list_ctx == NULL) {
2310 DBG_ERR("failed to allocate\n");
2311 return NDR_ERR_ALLOC;
2312 }
2313
2314 if (qt_handle->quota_list!=NULL) {
2315 free_ntquota_list(&(qt_handle->quota_list));
2316 }
2317 for (i = 0; i < elems; i++) {
2318 SMB_NTQUOTA_STRUCT qt;
2319 SMB_NTQUOTA_LIST *list_item;
2320 bool ok;
2321
2322 if (!NT_STATUS_IS_OK(vfs_get_ntquota(fsp,
2323 SMB_USER_QUOTA_TYPE,
2324 &sids[i], &qt))) {
2325 /* non fatal error, return empty item in result */
2326 ZERO_STRUCT(qt);
2327 continue;
2328 }
2329
2330
2331 list_item = talloc_zero(list_ctx, SMB_NTQUOTA_LIST);
2332 if (list_item == NULL) {
2333 DBG_ERR("failed to allocate\n");
2334 return NDR_ERR_ALLOC;
2335 }
2336
2337 ok = sid_to_uid(&sids[i], &list_item->uid);
2338 if (!ok) {
2339 char buf[DOM_SID_STR_BUFLEN];
2340 dom_sid_string_buf(&sids[i], buf, sizeof(buf));
2341 DBG_WARNING("Could not convert SID %s to uid\n", buf);
2342 /* No idea what to return here... */
2343 return NDR_ERR_INVALID_POINTER;
2344 }
2345
2346 list_item->quotas = talloc_zero(list_item, SMB_NTQUOTA_STRUCT);
2347 if (list_item->quotas == NULL) {
2348 DBG_ERR("failed to allocate\n");
2349 return NDR_ERR_ALLOC;
2350 }
2351
2352 *list_item->quotas = qt;
2353 list_item->mem_ctx = list_ctx;
2354 DLIST_ADD(qt_handle->quota_list, list_item);
2355 }
2356 qt_handle->tmp_list = qt_handle->quota_list;
2357 return NDR_ERR_SUCCESS;
2358 }
2359
2360 static enum ndr_err_code extract_sids_from_buf(TALLOC_CTX *mem_ctx,
2361 uint32_t sidlistlength,
2362 DATA_BLOB *sid_buf,
2363 struct dom_sid **sids,
2364 uint32_t *num)
2365 {
2366 DATA_BLOB blob;
2367 uint32_t i = 0;
2368 enum ndr_err_code err;
2369
2370 struct sid_list_elem {
2371 struct sid_list_elem *prev, *next;
2372 struct dom_sid sid;
2373 };
2374
2375 struct sid_list_elem *sid_list = NULL;
2376 struct sid_list_elem *iter = NULL;
2377 TALLOC_CTX *list_ctx = talloc_init("sid_list");
2378 if (!list_ctx) {
2379 DBG_ERR("OOM\n");
2380 err = NDR_ERR_ALLOC;
2381 goto done;
2382 }
2383
2384 *num = 0;
2385 *sids = NULL;
2386
2387 if (sidlistlength) {
2388 uint32_t offset = 0;
2389 struct ndr_pull *ndr_pull = NULL;
2390
2391 if (sidlistlength > sid_buf->length) {
2392 DBG_ERR("sid_list_length 0x%x exceeds "
2393 "available bytes %zx\n",
2394 sidlistlength,
2395 sid_buf->length);
2396 err = NDR_ERR_OFFSET;
2397 goto done;
2398 }
2399 while (true) {
2400 struct file_get_quota_info info;
2401 struct sid_list_elem *item = NULL;
2402 uint32_t new_offset = 0;
2403 blob.data = sid_buf->data + offset;
2404 blob.length = sidlistlength - offset;
2405 ndr_pull = ndr_pull_init_blob(&blob, list_ctx);
2406 if (!ndr_pull) {
2407 DBG_ERR("OOM\n");
2408 err = NDR_ERR_ALLOC;
2409 goto done;
2410 }
2411 err = ndr_pull_file_get_quota_info(ndr_pull,
2412 NDR_SCALARS | NDR_BUFFERS, &info);
2413 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2414 DBG_ERR("Failed to pull file_get_quota_info "
2415 "from sidlist buffer\n");
2416 goto done;
2417 }
2418 item = talloc_zero(list_ctx, struct sid_list_elem);
2419 if (!item) {
2420 DBG_ERR("OOM\n");
2421 err = NDR_ERR_ALLOC;
2422 goto done;
2423 }
2424 item->sid = info.sid;
2425 DLIST_ADD(sid_list, item);
2426 i++;
2427 if (i == UINT32_MAX) {
2428 DBG_ERR("Integer overflow\n");
2429 err = NDR_ERR_ARRAY_SIZE;
2430 goto done;
2431 }
2432 new_offset = info.next_entry_offset;
2433
2434 /* if new_offset == 0 no more sid(s) to read. */
2435 if (new_offset == 0) {
2436 break;
2437 }
2438
2439 /* Integer wrap? */
2440 if ((offset + new_offset) < offset) {
2441 DBG_ERR("Integer wrap while adding "
2442 "new_offset 0x%x to current "
2443 "buffer offset 0x%x\n",
2444 new_offset, offset);
2445 err = NDR_ERR_OFFSET;
2446 goto done;
2447 }
2448
2449 offset += new_offset;
2450
2451 /* check if new offset is outside buffer boundry. */
2452 if (offset >= sidlistlength) {
2453 DBG_ERR("bufsize 0x%x exceeded by "
2454 "new offset 0x%x)\n",
2455 sidlistlength,
2456 offset);
2457 err = NDR_ERR_OFFSET;
2458 goto done;
2459 }
2460 }
2461 *sids = talloc_zero_array(mem_ctx, struct dom_sid, i);
2462 if (*sids == NULL) {
2463 DBG_ERR("OOM\n");
2464 err = NDR_ERR_ALLOC;
2465 goto done;
2466 }
2467
2468 *num = i;
2469
2470 for (iter = sid_list, i = 0; iter; iter = iter->next, i++) {
2471 (*sids)[i] = iter->sid;
2472 DBG_DEBUG("quota SID[%u] %s\n",
2473 (unsigned int)i,
2474 sid_string_dbg(&iter->sid));
2475 }
2476 }
2477 err = NDR_ERR_SUCCESS;
2478 done:
2479 TALLOC_FREE(list_ctx);
2480 return err;
2481 }
2482
2483 NTSTATUS smbd_do_query_getinfo_quota(TALLOC_CTX *mem_ctx,
2484 files_struct *fsp,
2485 bool restart_scan,
2486 bool return_single,
2487 uint32_t sid_list_length,
2488 DATA_BLOB *sid_buf,
2489 uint32_t max_data_count,
2490 uint8_t **p_data,
2491 uint32_t *p_data_size)
2492 {
2493 NTSTATUS status;
2494 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2495 SMB_NTQUOTA_LIST *qt_list = NULL;
2496 DATA_BLOB blob = data_blob_null;
2497 enum ndr_err_code err;
2498
2499 qt_handle =
2500 (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2501
2502 if (sid_list_length ) {
2503 struct dom_sid *sids;
2504 uint32_t elems = 0;
2505 /*
2506 * error check pulled offsets and lengths for wrap and
2507 * exceeding available bytes.
2508 */
2509 if (sid_list_length > sid_buf->length) {
2510 DBG_ERR("sid_list_length 0x%x exceeds "
2511 "available bytes %zx\n",
2512 sid_list_length,
2513 sid_buf->length);
2514 return NT_STATUS_INVALID_PARAMETER;
2515 }
2516
2517 err = extract_sids_from_buf(mem_ctx, sid_list_length,
2518 sid_buf, &sids, &elems);
2519 if (!NDR_ERR_CODE_IS_SUCCESS(err) || elems == 0) {
2520 return NT_STATUS_INVALID_PARAMETER;
2521 }
2522 err = fill_qtlist_from_sids(mem_ctx,
2523 fsp,
2524 qt_handle,
2525 sids,
2526 elems);
2527 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2528 return NT_STATUS_INVALID_PARAMETER;
2529 }
2530 } else if (restart_scan) {
2531 if (vfs_get_user_ntquota_list(fsp,
2532 &(qt_handle->quota_list))!=0) {
2533 return NT_STATUS_INTERNAL_ERROR;
2534 }
2535 } else {
2536 if (qt_handle->quota_list!=NULL &&
2537 qt_handle->tmp_list==NULL) {
2538 free_ntquota_list(&(qt_handle->quota_list));
2539 }
2540 }
2541
2542 if (restart_scan !=0 ) {
2543 qt_list = qt_handle->quota_list;
2544 } else {
2545 qt_list = qt_handle->tmp_list;
2546 }
2547 status = fill_quota_buffer(mem_ctx, qt_list,
2548 return_single != 0,
2549 max_data_count,
2550 &blob,
2551 &qt_handle->tmp_list);
2552 if (!NT_STATUS_IS_OK(status)) {
2553 return status;
2554 }
2555 if (blob.length > max_data_count) {
2556 return NT_STATUS_BUFFER_TOO_SMALL;
2557 }
2558
2559 *p_data = blob.data;
2560 *p_data_size = blob.length;
2561 return NT_STATUS_OK;
2562 }
2563
2564 /****************************************************************************
2565 Reply to get user quota
2566 ****************************************************************************/
2567
2568 static void call_nt_transact_get_user_quota(connection_struct *conn,
2569 struct smb_request *req,
2570 uint16_t **ppsetup,
2571 uint32_t setup_count,
2572 char **ppparams,
2573 uint32_t parameter_count,
2574 char **ppdata,
2575 uint32_t data_count,
2576 uint32_t max_data_count)
2577 {
2578 NTSTATUS nt_status = NT_STATUS_OK;
2579 char *params = *ppparams;
2580 char *pdata = *ppdata;
2581 int data_len = 0;
2582 int param_len = 0;
2583 files_struct *fsp = NULL;
2584 DATA_BLOB blob = data_blob_null;
2585 struct nttrans_query_quota_params info = {0};
2586 enum ndr_err_code err;
2587 TALLOC_CTX *tmp_ctx = NULL;
2588 uint32_t resp_len = 0;
2589 uint8_t *resp_data = 0;
2590
2591 tmp_ctx = talloc_init("ntquota_list");
2592 if (!tmp_ctx) {
2593 nt_status = NT_STATUS_NO_MEMORY;
2594 goto error;
2595 }
2596
2597 /* access check */
2598 if (get_current_uid(conn) != sec_initial_uid()) {
2599 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2600 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2601 conn->session_info->unix_info->unix_name));
2602 nt_status = NT_STATUS_ACCESS_DENIED;
2603 goto error;
2604 }
2605
2606 blob.data = (uint8_t*)params;
2607 blob.length = parameter_count;
2608
2609 err = ndr_pull_struct_blob(&blob, tmp_ctx, &info,
2610 (ndr_pull_flags_fn_t)ndr_pull_nttrans_query_quota_params);
2611
2612 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2613 DEBUG(0,("TRANSACT_GET_USER_QUOTA: failed to pull "
2614 "query_quota_params."));
2615 nt_status = NT_STATUS_INVALID_PARAMETER;
2616 goto error;
2617 }
2618 DBG_DEBUG("info.return_single_entry = %u, info.restart_scan = %u, "
2619 "info.sid_list_length = %u, info.start_sid_length = %u, "
2620 "info.start_sid_offset = %u\n",
2621 (unsigned int)info.return_single_entry,
2622 (unsigned int)info.restart_scan,
2623 (unsigned int)info.sid_list_length,
2624 (unsigned int)info.start_sid_length,
2625 (unsigned int)info.start_sid_offset);
2626
2627 /* set blob to point at data for further parsing */
2628 blob.data = (uint8_t*)pdata;
2629 blob.length = data_count;
2630 /*
2631 * Although MS-SMB ref is ambiguous here, a microsoft client will
2632 * only ever send a start sid (as part of a list) with
2633 * sid_list_length & start_sid_offset both set to the actual list
2634 * length. Note: Only a single result is returned in this case
2635 * In the case where either start_sid_offset or start_sid_length
2636 * are set alone or if both set (but have different values) then
2637 * it seems windows will return a number of entries from the start
2638 * of the list of users with quotas set. This behaviour is undocumented
2639 * and windows clients do not send messages of that type. As such we
2640 * currently will reject these requests.
2641 */
2642 if (info.start_sid_length
2643 || (info.sid_list_length != info.start_sid_offset)) {
2644 DBG_ERR("TRANSACT_GET_USER_QUOTA: unsupported single or "
2645 "compound sid format\n");
2646 nt_status = NT_STATUS_INVALID_PARAMETER;
2647 goto error;
2648 }
2649
2650 /* maybe we can check the quota_fnum */
2651 fsp = file_fsp(req, info.fid);
2652 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2653 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2654 nt_status = NT_STATUS_INVALID_HANDLE;
2655 goto error;
2656 }
2657 nt_status = smbd_do_query_getinfo_quota(tmp_ctx,
2658 fsp,
2659 info.restart_scan,
2660 info.return_single_entry,
2661 info.sid_list_length,
2662 &blob,
2663 max_data_count,
2664 &resp_data,
2665 &resp_len);
2666 if (!NT_STATUS_IS_OK(nt_status)) {
2667 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
2668 goto error;
2669 }
2670 nt_status = NT_STATUS_OK;
2671 }
2672
2673 param_len = 4;
2674 params = nttrans_realloc(ppparams, param_len);
2675 if(params == NULL) {
2676 nt_status = NT_STATUS_NO_MEMORY;
2677 goto error;
2678 }
2679
2680 data_len = resp_len;
2681 SIVAL(params, 0, data_len);
2682 pdata = nttrans_realloc(ppdata, data_len);
2683 memcpy(pdata, resp_data, data_len);
2684
2685 TALLOC_FREE(tmp_ctx);
2686 send_nt_replies(conn, req, nt_status, params, param_len,
2687 pdata, data_len);
2688 return;
2689 error:
2690 TALLOC_FREE(tmp_ctx);
2691 reply_nterror(req, nt_status);
2692 }
2693
2694 /****************************************************************************
2695 Reply to set user quota
2696 ****************************************************************************/
2697
2698 static void call_nt_transact_set_user_quota(connection_struct *conn,
2699 struct smb_request *req,
2700 uint16_t **ppsetup,
2701 uint32_t setup_count,
2702 char **ppparams,
2703 uint32_t parameter_count,
2704 char **ppdata,
2705 uint32_t data_count,
2706 uint32_t max_data_count)
2707 {
2708 char *params = *ppparams;
2709 char *pdata = *ppdata;
2710 int data_len=0,param_len=0;
2711 SMB_NTQUOTA_STRUCT qt;
2712 struct file_quota_information info = {0};
2713 enum ndr_err_code err;
2714 struct dom_sid sid;
2715 DATA_BLOB inblob;
2716 files_struct *fsp = NULL;
2717 TALLOC_CTX *ctx = NULL;
2718 NTSTATUS status = NT_STATUS_OK;
2719 ZERO_STRUCT(qt);
2720
2721 /* access check */
2722 if (get_current_uid(conn) != sec_initial_uid()) {
2723 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2724 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2725 conn->session_info->unix_info->unix_name));
2726 status = NT_STATUS_ACCESS_DENIED;
2727 goto error;
2728 }
2729
2730 /*
2731 * Ensure minimum number of parameters sent.
2732 */
2733
2734 if (parameter_count < 2) {
2735 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2736 status = NT_STATUS_INVALID_PARAMETER;
2737 goto error;
2738 }
2739
2740 /* maybe we can check the quota_fnum */
2741 fsp = file_fsp(req, SVAL(params,0));
2742 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2743 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2744 status = NT_STATUS_INVALID_HANDLE;
2745 goto error;
2746 }
2747
2748 ctx = talloc_init("set_user_quota");
2749 if (!ctx) {
2750 status = NT_STATUS_NO_MEMORY;
2751 goto error;
2752 }
2753 inblob.data = (uint8_t*)pdata;
2754 inblob.length = data_count;
2755
2756 err = ndr_pull_struct_blob(
2757 &inblob,
2758 ctx,
2759 &info,
2760 (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
2761
2762 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2763 DEBUG(0,("TRANSACT_SET_USER_QUOTA: failed to pull "
2764 "file_quota_information\n"));
2765 status = NT_STATUS_INVALID_PARAMETER;
2766 goto error;
2767 }
2768 qt.usedspace = info.quota_used;
2769
2770 qt.softlim = info.quota_threshold;
2771
2772 qt.hardlim = info.quota_limit;
2773
2774 sid = info.sid;
2775
2776 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2777 status = NT_STATUS_INTERNAL_ERROR;
2778 goto error;
2779 }
2780
2781 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2782 pdata, data_len);
2783 TALLOC_FREE(ctx);
2784 return;
2785 error:
2786 TALLOC_FREE(ctx);
2787 reply_nterror(req, status);
2788 }
2789 #endif /* HAVE_SYS_QUOTAS */
2790
2791 static void handle_nttrans(connection_struct *conn,
2792 struct trans_state *state,
2793 struct smb_request *req)
2794 {
2795 if (get_Protocol() >= PROTOCOL_NT1) {
2796 req->flags2 |= 0x40; /* IS_LONG_NAME */
2797 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2798 }
2799
2800
2801 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2802
2803 /* Now we must call the relevant NT_TRANS function */
2804 switch(state->call) {
2805 case NT_TRANSACT_CREATE:
2806 {
2807 START_PROFILE(NT_transact_create);
2808 call_nt_transact_create(
2809 conn, req,
2810 &state->setup, state->setup_count,
2811 &state->param, state->total_param,
2812 &state->data, state->total_data,
2813 state->max_data_return);
2814 END_PROFILE(NT_transact_create);
2815 break;
2816 }
2817
2818 case NT_TRANSACT_IOCTL:
2819 {
2820 START_PROFILE(NT_transact_ioctl);
2821 call_nt_transact_ioctl(
2822 conn, req,
2823 &state->setup, state->setup_count,
2824 &state->param, state->total_param,
2825 &state->data, state->total_data,
2826 state->max_data_return);
2827 END_PROFILE(NT_transact_ioctl);
2828 break;
2829 }
2830
2831 case NT_TRANSACT_SET_SECURITY_DESC:
2832 {
2833 START_PROFILE(NT_transact_set_security_desc);
2834 call_nt_transact_set_security_desc(
2835 conn, req,
2836 &state->setup, state->setup_count,
2837 &state->param, state->total_param,
2838 &state->data, state->total_data,
2839 state->max_data_return);
2840 END_PROFILE(NT_transact_set_security_desc);
2841 break;
2842 }
2843
2844 case NT_TRANSACT_NOTIFY_CHANGE:
2845 {
2846 START_PROFILE(NT_transact_notify_change);
2847 call_nt_transact_notify_change(
2848 conn, req,
2849 &state->setup, state->setup_count,
2850 &state->param, state->total_param,
2851 &state->data, state->total_data,
2852 state->max_data_return,
2853 state->max_param_return);
2854 END_PROFILE(NT_transact_notify_change);
2855 break;
2856 }
2857
2858 case NT_TRANSACT_RENAME:
2859 {
2860 START_PROFILE(NT_transact_rename);
2861 call_nt_transact_rename(
2862 conn, req,
2863 &state->setup, state->setup_count,
2864 &state->param, state->total_param,
2865 &state->data, state->total_data,
2866 state->max_data_return);
2867 END_PROFILE(NT_transact_rename);
2868 break;
2869 }
2870
2871 case NT_TRANSACT_QUERY_SECURITY_DESC:
2872 {
2873 START_PROFILE(NT_transact_query_security_desc);
2874 call_nt_transact_query_security_desc(
2875 conn, req,
2876 &state->setup, state->setup_count,
2877 &state->param, state->total_param,
2878 &state->data, state->total_data,
2879 state->max_data_return);
2880 END_PROFILE(NT_transact_query_security_desc);
2881 break;
2882 }
2883
2884 #ifdef HAVE_SYS_QUOTAS
2885 case NT_TRANSACT_GET_USER_QUOTA:
2886 {
2887 START_PROFILE(NT_transact_get_user_quota);
2888 call_nt_transact_get_user_quota(
2889 conn, req,
2890 &state->setup, state->setup_count,
2891 &state->param, state->total_param,
2892 &state->data, state->total_data,
2893 state->max_data_return);
2894 END_PROFILE(NT_transact_get_user_quota);
2895 break;
2896 }
2897
2898 case NT_TRANSACT_SET_USER_QUOTA:
2899 {
2900 START_PROFILE(NT_transact_set_user_quota);
2901 call_nt_transact_set_user_quota(
2902 conn, req,
2903 &state->setup, state->setup_count,
2904 &state->param, state->total_param,
2905 &state->data, state->total_data,
2906 state->max_data_return);
2907 END_PROFILE(NT_transact_set_user_quota);
2908 break;
2909 }
2910 #endif /* HAVE_SYS_QUOTAS */
2911
2912 default:
2913 /* Error in request */
2914 DEBUG(0,("handle_nttrans: Unknown request %d in "
2915 "nttrans call\n", state->call));
2916 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2917 return;
2918 }
2919 return;
2920 }
2921
2922 /****************************************************************************
2923 Reply to a SMBNTtrans.
2924 ****************************************************************************/
2925
2926 void reply_nttrans(struct smb_request *req)
2927 {
2928 connection_struct *conn = req->conn;
2929 uint32_t pscnt;
2930 uint32_t psoff;
2931 uint32_t dscnt;
2932 uint32_t dsoff;
2933 uint16_t function_code;
2934 NTSTATUS result;
2935 struct trans_state *state;
2936
2937 START_PROFILE(SMBnttrans);
2938
2939 if (req->wct < 19) {
2940 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2941 END_PROFILE(SMBnttrans);
2942 return;
2943 }
2944
2945 pscnt = IVAL(req->vwv+9, 1);
2946 psoff = IVAL(req->vwv+11, 1);
2947 dscnt = IVAL(req->vwv+13, 1);
2948 dsoff = IVAL(req->vwv+15, 1);
2949 function_code = SVAL(req->vwv+18, 0);
2950
2951 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2952 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2953 END_PROFILE(SMBnttrans);
2954 return;
2955 }
2956
2957 result = allow_new_trans(conn->pending_trans, req->mid);
2958 if (!NT_STATUS_IS_OK(result)) {
2959 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2960 reply_nterror(req, result);
2961 END_PROFILE(SMBnttrans);
2962 return;
2963 }
2964
2965 if ((state = talloc(conn, struct trans_state)) == NULL) {
2966 reply_nterror(req, NT_STATUS_NO_MEMORY);
2967 END_PROFILE(SMBnttrans);
2968 return;
2969 }
2970
2971 state->cmd = SMBnttrans;
2972
2973 state->mid = req->mid;
2974 state->vuid = req->vuid;
2975 state->total_data = IVAL(req->vwv+3, 1);
2976 state->data = NULL;
2977 state->total_param = IVAL(req->vwv+1, 1);
2978 state->param = NULL;
2979 state->max_data_return = IVAL(req->vwv+7, 1);
2980 state->max_param_return = IVAL(req->vwv+5, 1);
2981
2982 /* setup count is in *words* */
2983 state->setup_count = 2*CVAL(req->vwv+17, 1);
2984 state->setup = NULL;
2985 state->call = function_code;
2986
2987 DEBUG(10, ("num_setup=%u, "
2988 "param_total=%u, this_param=%u, max_param=%u, "
2989 "data_total=%u, this_data=%u, max_data=%u, "
2990 "param_offset=%u, data_offset=%u\n",
2991 (unsigned)state->setup_count,
2992 (unsigned)state->total_param, (unsigned)pscnt,
2993 (unsigned)state->max_param_return,
2994 (unsigned)state->total_data, (unsigned)dscnt,
2995 (unsigned)state->max_data_return,
2996 (unsigned)psoff, (unsigned)dsoff));
2997
2998 /*
2999 * All nttrans messages we handle have smb_wct == 19 +
3000 * state->setup_count. Ensure this is so as a sanity check.
3001 */
3002
3003 if(req->wct != 19 + (state->setup_count/2)) {
3004 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3005 req->wct, 19 + (state->setup_count/2)));
3006 goto bad_param;
3007 }
3008
3009 /* Don't allow more than 128mb for each value. */
3010 if ((state->total_data > (1024*1024*128)) ||
3011 (state->total_param > (1024*1024*128))) {
3012 reply_nterror(req, NT_STATUS_NO_MEMORY);
3013 END_PROFILE(SMBnttrans);
3014 return;
3015 }
3016
3017 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3018 goto bad_param;
3019
3020 if (state->total_data) {
3021
3022 if (trans_oob(state->total_data, 0, dscnt)
3023 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3024 goto bad_param;
3025 }
3026
3027 /* Can't use talloc here, the core routines do realloc on the
3028 * params and data. */
3029 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3030 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3031 "bytes !\n", (unsigned int)state->total_data));
3032 TALLOC_FREE(state);
3033 reply_nterror(req, NT_STATUS_NO_MEMORY);
3034 END_PROFILE(SMBnttrans);
3035 return;
3036 }
3037
3038 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3039 }
3040
3041 if (state->total_param) {
3042
3043 if (trans_oob(state->total_param, 0, pscnt)
3044 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3045 goto bad_param;
3046 }
3047
3048 /* Can't use talloc here, the core routines do realloc on the
3049 * params and data. */
3050 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3051 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3052 "bytes !\n", (unsigned int)state->total_param));
3053 SAFE_FREE(state->data);
3054 TALLOC_FREE(state);
3055 reply_nterror(req, NT_STATUS_NO_MEMORY);
3056 END_PROFILE(SMBnttrans);
3057 return;
3058 }
3059
3060 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3061 }
3062
3063 state->received_data = dscnt;
3064 state->received_param = pscnt;
3065
3066 if(state->setup_count > 0) {
3067 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3068 state->setup_count));
3069
3070 /*
3071 * No overflow possible here, state->setup_count is an
3072 * unsigned int, being filled by a single byte from
3073 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3074 * below is not necessary, it's here to clarify things. The
3075 * validity of req->vwv and req->wct has been checked in
3076 * init_smb_request already.
3077 */
3078 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3079 goto bad_param;
3080 }
3081
3082 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
3083 if (state->setup == NULL) {
3084 DEBUG(0,("reply_nttrans : Out of memory\n"));
3085 SAFE_FREE(state->data);
3086 SAFE_FREE(state->param);
3087 TALLOC_FREE(state);
3088 reply_nterror(req, NT_STATUS_NO_MEMORY);
3089 END_PROFILE(SMBnttrans);
3090 return;
3091 }
3092
3093 memcpy(state->setup, req->vwv+19, state->setup_count);
3094 dump_data(10, (uint8_t *)state->setup, state->setup_count);
3095 }
3096
3097 if ((state->received_data == state->total_data) &&
3098 (state->received_param == state->total_param)) {
3099 handle_nttrans(conn, state, req);
3100 SAFE_FREE(state->param);
3101 SAFE_FREE(state->data);
3102 TALLOC_FREE(state);
3103 END_PROFILE(SMBnttrans);
3104 return;
3105 }
3106
3107 DLIST_ADD(conn->pending_trans, state);
3108
3109 /* We need to send an interim response then receive the rest
3110 of the parameter/data bytes */
3111 reply_outbuf(req, 0, 0);
3112 show_msg((char *)req->outbuf);
3113 END_PROFILE(SMBnttrans);
3114 return;
3115
3116 bad_param:
3117
3118 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3119 SAFE_FREE(state->data);
3120 SAFE_FREE(state->param);
3121 TALLOC_FREE(state);
3122 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3123 END_PROFILE(SMBnttrans);
3124 return;
3125 }
3126
3127 /****************************************************************************
3128 Reply to a SMBnttranss
3129 ****************************************************************************/
3130
3131 void reply_nttranss(struct smb_request *req)
3132 {
3133 connection_struct *conn = req->conn;
3134 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3135 struct trans_state *state;
3136
3137 START_PROFILE(SMBnttranss);
3138
3139 show_msg((const char *)req->inbuf);
3140
3141 /* Windows clients expect all replies to
3142 an NT transact secondary (SMBnttranss 0xA1)
3143 to have a command code of NT transact
3144 (SMBnttrans 0xA0). See bug #8989 for details. */
3145 req->cmd = SMBnttrans;
3146
3147 if (req->wct < 18) {
3148 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3149 END_PROFILE(SMBnttranss);
3150 return;
3151 }
3152
3153 for (state = conn->pending_trans; state != NULL;
3154 state = state->next) {
3155 if (state->mid == req->mid) {
3156 break;
3157 }
3158 }
3159
3160 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3161 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3162 END_PROFILE(SMBnttranss);
3163 return;
3164 }
3165
3166 /* Revise state->total_param and state->total_data in case they have
3167 changed downwards */
3168 if (IVAL(req->vwv+1, 1) < state->total_param) {
3169 state->total_param = IVAL(req->vwv+1, 1);
3170 }
3171 if (IVAL(req->vwv+3, 1) < state->total_data) {
3172 state->total_data = IVAL(req->vwv+3, 1);
3173 }
3174
3175 pcnt = IVAL(req->vwv+5, 1);
3176 poff = IVAL(req->vwv+7, 1);
3177 pdisp = IVAL(req->vwv+9, 1);
3178
3179 dcnt = IVAL(req->vwv+11, 1);
3180 doff = IVAL(req->vwv+13, 1);
3181 ddisp = IVAL(req->vwv+15, 1);
3182
3183 state->received_param += pcnt;
3184 state->received_data += dcnt;
3185
3186 if ((state->received_data > state->total_data) ||
3187 (state->received_param > state->total_param))
3188 goto bad_param;
3189
3190 if (pcnt) {
3191 if (trans_oob(state->total_param, pdisp, pcnt)
3192 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3193 goto bad_param;
3194 }
3195 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3196 }
3197
3198 if (dcnt) {
3199 if (trans_oob(state->total_data, ddisp, dcnt)
3200 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3201 goto bad_param;
3202 }
3203 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3204 }
3205
3206 if ((state->received_param < state->total_param) ||
3207 (state->received_data < state->total_data)) {
3208 END_PROFILE(SMBnttranss);
3209 return;
3210 }
3211
3212 handle_nttrans(conn, state, req);
3213
3214 DLIST_REMOVE(conn->pending_trans, state);
3215 SAFE_FREE(state->data);
3216 SAFE_FREE(state->param);
3217 TALLOC_FREE(state);
3218 END_PROFILE(SMBnttranss);
3219 return;
3220
3221 bad_param:
3222
3223 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3224 DLIST_REMOVE(conn->pending_trans, state);
3225 SAFE_FREE(state->data);
3226 SAFE_FREE(state->param);
3227 TALLOC_FREE(state);
3228 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3229 END_PROFILE(SMBnttranss);
3230 return;
3231 }
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