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s4:torture: Remove unused header file
[Samba.git] / source3 / smbd / nttrans.c
blob7ebd802109fd0557efde396fcf0cd89a6f095ff6
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 NULL,
547 &smb_fname);
548
549 TALLOC_FREE(case_state);
550
551 if (!NT_STATUS_IS_OK(status)) {
552 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
553 reply_botherror(req,
554 NT_STATUS_PATH_NOT_COVERED,
555 ERRSRV, ERRbadpath);
556 goto out;
557 }
558 reply_nterror(req, status);
559 goto out;
560 }
561
562 /*
563 * Bug #6898 - clients using Windows opens should
564 * never be able to set this attribute into the
565 * VFS.
566 */
567 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
568
569 status = SMB_VFS_CREATE_FILE(
570 conn, /* conn */
571 req, /* req */
572 root_dir_fid, /* root_dir_fid */
573 smb_fname, /* fname */
574 access_mask, /* access_mask */
575 share_access, /* share_access */
576 create_disposition, /* create_disposition*/
577 create_options, /* create_options */
578 file_attributes, /* file_attributes */
579 oplock_request, /* oplock_request */
580 NULL, /* lease */
581 allocation_size, /* allocation_size */
582 0, /* private_flags */
583 NULL, /* sd */
584 NULL, /* ea_list */
585 &fsp, /* result */
586 &info, /* pinfo */
587 NULL, NULL); /* create context */
588
589 if (!NT_STATUS_IS_OK(status)) {
590 if (open_was_deferred(req->xconn, req->mid)) {
591 /* We have re-scheduled this call, no error. */
592 goto out;
593 }
594 reply_openerror(req, status);
595 goto out;
596 }
597
598 /* Ensure we're pointing at the correct stat struct. */
599 TALLOC_FREE(smb_fname);
600 smb_fname = fsp->fsp_name;
601
602 /*
603 * If the caller set the extended oplock request bit
604 * and we granted one (by whatever means) - set the
605 * correct bit for extended oplock reply.
606 */
607
608 if (oplock_request &&
609 (lp_fake_oplocks(SNUM(conn))
610 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
611
612 /*
613 * Exclusive oplock granted
614 */
615
616 if (flags & REQUEST_BATCH_OPLOCK) {
617 oplock_granted = BATCH_OPLOCK_RETURN;
618 } else {
619 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
620 }
621 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
622 oplock_granted = LEVEL_II_OPLOCK_RETURN;
623 } else {
624 oplock_granted = NO_OPLOCK_RETURN;
625 }
626
627 file_len = smb_fname->st.st_ex_size;
628
629 if (flags & EXTENDED_RESPONSE_REQUIRED) {
630 /* This is very strange. We
631 * return 50 words, but only set
632 * the wcnt to 42 ? It's definitely
633 * what happens on the wire....
634 */
635 reply_outbuf(req, 50, 0);
636 SCVAL(req->outbuf,smb_wct,42);
637 } else {
638 reply_outbuf(req, 34, 0);
639 }
640
641 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
642 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
643
644 p = (char *)req->outbuf + smb_vwv2;
645
646 SCVAL(p, 0, oplock_granted);
647
648 p++;
649 SSVAL(p,0,fsp->fnum);
650 p += 2;
651 if ((create_disposition == FILE_SUPERSEDE)
652 && (info == FILE_WAS_OVERWRITTEN)) {
653 SIVAL(p,0,FILE_WAS_SUPERSEDED);
654 } else {
655 SIVAL(p,0,info);
656 }
657 p += 4;
658
659 fattr = dos_mode(conn, smb_fname);
660 if (fattr == 0) {
661 fattr = FILE_ATTRIBUTE_NORMAL;
662 }
663
664 /* Create time. */
665 create_timespec = get_create_timespec(conn, fsp, smb_fname);
666 a_timespec = smb_fname->st.st_ex_atime;
667 m_timespec = smb_fname->st.st_ex_mtime;
668 c_timespec = get_change_timespec(conn, fsp, smb_fname);
669
670 if (lp_dos_filetime_resolution(SNUM(conn))) {
671 dos_filetime_timespec(&create_timespec);
672 dos_filetime_timespec(&a_timespec);
673 dos_filetime_timespec(&m_timespec);
674 dos_filetime_timespec(&c_timespec);
675 }
676
677 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
678 p += 8;
679 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
680 p += 8;
681 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
682 p += 8;
683 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
684 p += 8;
685 SIVAL(p,0,fattr); /* File Attributes. */
686 p += 4;
687 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
688 p += 8;
689 SOFF_T(p,0,file_len);
690 p += 8;
691 if (flags & EXTENDED_RESPONSE_REQUIRED) {
692 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
693 unsigned int num_streams = 0;
694 struct stream_struct *streams = NULL;
695
696 if (lp_ea_support(SNUM(conn))) {
697 size_t num_names = 0;
698 /* Do we have any EA's ? */
699 status = get_ea_names_from_file(
700 ctx, conn, fsp, smb_fname, NULL, &num_names);
701 if (NT_STATUS_IS_OK(status) && num_names) {
702 file_status &= ~NO_EAS;
703 }
704 }
705
706 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
707 &num_streams, &streams);
708 /* There is always one stream, ::$DATA. */
709 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
710 file_status &= ~NO_SUBSTREAMS;
711 }
712 TALLOC_FREE(streams);
713 SSVAL(p,2,file_status);
714 }
715 p += 4;
716 SCVAL(p,0,fsp->is_directory ? 1 : 0);
717
718 if (flags & EXTENDED_RESPONSE_REQUIRED) {
719 uint32_t perms = 0;
720 p += 25;
721 if (fsp->is_directory ||
722 fsp->can_write ||
723 can_write_to_file(conn, smb_fname)) {
724 perms = FILE_GENERIC_ALL;
725 } else {
726 perms = FILE_GENERIC_READ|FILE_EXECUTE;
727 }
728 SIVAL(p,0,perms);
729 }
730
731 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
732 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
733
734 out:
735 END_PROFILE(SMBntcreateX);
736 return;
737 }
738
739 /****************************************************************************
740 Reply to a NT_TRANSACT_CREATE call to open a pipe.
741 ****************************************************************************/
742
743 static void do_nt_transact_create_pipe(connection_struct *conn,
744 struct smb_request *req,
745 uint16_t **ppsetup, uint32_t setup_count,
746 char **ppparams, uint32_t parameter_count,
747 char **ppdata, uint32_t data_count)
748 {
749 char *fname = NULL;
750 char *params = *ppparams;
751 uint16_t pnum = FNUM_FIELD_INVALID;
752 char *p = NULL;
753 NTSTATUS status;
754 size_t param_len;
755 uint32_t flags;
756 TALLOC_CTX *ctx = talloc_tos();
757
758 /*
759 * Ensure minimum number of parameters sent.
760 */
761
762 if(parameter_count < 54) {
763 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
764 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
765 return;
766 }
767
768 flags = IVAL(params,0);
769
770 if (req->posix_pathnames) {
771 srvstr_get_path_posix(ctx,
772 params,
773 req->flags2,
774 &fname,
775 params+53,
776 parameter_count-53,
777 STR_TERMINATE,
778 &status);
779 } else {
780 srvstr_get_path(ctx,
781 params,
782 req->flags2,
783 &fname,
784 params+53,
785 parameter_count-53,
786 STR_TERMINATE,
787 &status);
788 }
789 if (!NT_STATUS_IS_OK(status)) {
790 reply_nterror(req, status);
791 return;
792 }
793
794 nt_open_pipe(fname, conn, req, &pnum);
795
796 if (req->outbuf) {
797 /* Error return */
798 return;
799 }
800
801 /* Realloc the size of parameters and data we will return */
802 if (flags & EXTENDED_RESPONSE_REQUIRED) {
803 /* Extended response is 32 more byyes. */
804 param_len = 101;
805 } else {
806 param_len = 69;
807 }
808 params = nttrans_realloc(ppparams, param_len);
809 if(params == NULL) {
810 reply_nterror(req, NT_STATUS_NO_MEMORY);
811 return;
812 }
813
814 p = params;
815 SCVAL(p,0,NO_OPLOCK_RETURN);
816
817 p += 2;
818 SSVAL(p,0,pnum);
819 p += 2;
820 SIVAL(p,0,FILE_WAS_OPENED);
821 p += 8;
822
823 p += 32;
824 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
825 p += 20;
826 /* File type. */
827 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
828 /* Device state. */
829 SSVAL(p,2, 0x5FF); /* ? */
830 p += 4;
831
832 if (flags & EXTENDED_RESPONSE_REQUIRED) {
833 p += 25;
834 SIVAL(p,0,FILE_GENERIC_ALL);
835 /*
836 * For pipes W2K3 seems to return
837 * 0x12019B next.
838 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
839 */
840 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
841 }
842
843 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
844
845 /* Send the required number of replies */
846 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
847
848 return;
849 }
850
851 /*********************************************************************
852 Windows seems to do canonicalization of inheritance bits. Do the
853 same.
854 *********************************************************************/
855
856 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
857 {
858 bool set_auto_inherited = false;
859
860 /*
861 * We need to filter out the
862 * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
863 * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
864 * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
865 * when an ACE is inherited. Otherwise we zero these bits out.
866 * See:
867 *
868 * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
869 *
870 * for details.
871 */
872
873 if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
874 == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
875 set_auto_inherited = true;
876 }
877
878 psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
879 if (set_auto_inherited) {
880 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
881 }
882 }
883
884 /****************************************************************************
885 Internal fn to set security descriptors.
886 ****************************************************************************/
887
888 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
889 uint32_t security_info_sent)
890 {
891 NTSTATUS status;
892
893 if (!CAN_WRITE(fsp->conn)) {
894 return NT_STATUS_ACCESS_DENIED;
895 }
896
897 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
898 return NT_STATUS_OK;
899 }
900
901 if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
902 DEBUG(10, ("ACL set on symlink %s denied.\n",
903 fsp_str_dbg(fsp)));
904 return NT_STATUS_ACCESS_DENIED;
905 }
906
907 if (psd->owner_sid == NULL) {
908 security_info_sent &= ~SECINFO_OWNER;
909 }
910 if (psd->group_sid == NULL) {
911 security_info_sent &= ~SECINFO_GROUP;
912 }
913
914 /* Ensure we have at least one thing set. */
915 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
916 /* Just like W2K3 */
917 return NT_STATUS_OK;
918 }
919
920 /* Ensure we have the rights to do this. */
921 if (security_info_sent & SECINFO_OWNER) {
922 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
923 return NT_STATUS_ACCESS_DENIED;
924 }
925 }
926
927 if (security_info_sent & SECINFO_GROUP) {
928 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
929 return NT_STATUS_ACCESS_DENIED;
930 }
931 }
932
933 if (security_info_sent & SECINFO_DACL) {
934 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
935 return NT_STATUS_ACCESS_DENIED;
936 }
937 /* Convert all the generic bits. */
938 if (psd->dacl) {
939 security_acl_map_generic(psd->dacl, &file_generic_mapping);
940 }
941 }
942
943 if (security_info_sent & SECINFO_SACL) {
944 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
945 return NT_STATUS_ACCESS_DENIED;
946 }
947 /* Convert all the generic bits. */
948 if (psd->sacl) {
949 security_acl_map_generic(psd->sacl, &file_generic_mapping);
950 }
951 }
952
953 canonicalize_inheritance_bits(psd);
954
955 if (DEBUGLEVEL >= 10) {
956 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
957 NDR_PRINT_DEBUG(security_descriptor, psd);
958 }
959
960 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
961
962 TALLOC_FREE(psd);
963
964 return status;
965 }
966
967 /****************************************************************************
968 Internal fn to set security descriptors from a data blob.
969 ****************************************************************************/
970
971 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
972 uint32_t security_info_sent)
973 {
974 struct security_descriptor *psd = NULL;
975 NTSTATUS status;
976
977 if (sd_len == 0) {
978 return NT_STATUS_INVALID_PARAMETER;
979 }
980
981 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
982
983 if (!NT_STATUS_IS_OK(status)) {
984 return status;
985 }
986
987 return set_sd(fsp, psd, security_info_sent);
988 }
989
990 /****************************************************************************
991 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
992 ****************************************************************************/
993
994 static void call_nt_transact_create(connection_struct *conn,
995 struct smb_request *req,
996 uint16_t **ppsetup, uint32_t setup_count,
997 char **ppparams, uint32_t parameter_count,
998 char **ppdata, uint32_t data_count,
999 uint32_t max_data_count)
1000 {
1001 struct smb_filename *smb_fname = NULL;
1002 char *fname = NULL;
1003 char *params = *ppparams;
1004 char *data = *ppdata;
1005 /* Breakout the oplock request bits so we can set the reply bits separately. */
1006 uint32_t fattr=0;
1007 off_t file_len = 0;
1008 int info = 0;
1009 files_struct *fsp = NULL;
1010 char *p = NULL;
1011 uint32_t flags;
1012 uint32_t access_mask;
1013 uint32_t file_attributes;
1014 uint32_t share_access;
1015 uint32_t create_disposition;
1016 uint32_t create_options;
1017 uint32_t sd_len;
1018 struct security_descriptor *sd = NULL;
1019 uint32_t ea_len;
1020 uint16_t root_dir_fid;
1021 struct timespec create_timespec;
1022 struct timespec c_timespec;
1023 struct timespec a_timespec;
1024 struct timespec m_timespec;
1025 struct ea_list *ea_list = NULL;
1026 NTSTATUS status;
1027 size_t param_len;
1028 uint64_t allocation_size;
1029 int oplock_request;
1030 uint8_t oplock_granted;
1031 struct case_semantics_state *case_state = NULL;
1032 uint32_t ucf_flags;
1033 TALLOC_CTX *ctx = talloc_tos();
1034
1035 DEBUG(5,("call_nt_transact_create\n"));
1036
1037 /*
1038 * If it's an IPC, use the pipe handler.
1039 */
1040
1041 if (IS_IPC(conn)) {
1042 if (lp_nt_pipe_support()) {
1043 do_nt_transact_create_pipe(
1044 conn, req,
1045 ppsetup, setup_count,
1046 ppparams, parameter_count,
1047 ppdata, data_count);
1048 goto out;
1049 }
1050 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1051 goto out;
1052 }
1053
1054 /*
1055 * Ensure minimum number of parameters sent.
1056 */
1057
1058 if(parameter_count < 54) {
1059 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1060 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1061 goto out;
1062 }
1063
1064 flags = IVAL(params,0);
1065 access_mask = IVAL(params,8);
1066 file_attributes = IVAL(params,20);
1067 share_access = IVAL(params,24);
1068 create_disposition = IVAL(params,28);
1069 create_options = IVAL(params,32);
1070 sd_len = IVAL(params,36);
1071 ea_len = IVAL(params,40);
1072 root_dir_fid = (uint16_t)IVAL(params,4);
1073 allocation_size = BVAL(params,12);
1074
1075 /*
1076 * we need to remove ignored bits when they come directly from the client
1077 * because we reuse some of them for internal stuff
1078 */
1079 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1080
1081 if (req->posix_pathnames) {
1082 srvstr_get_path_posix(ctx,
1083 params,
1084 req->flags2,
1085 &fname,
1086 params+53,
1087 parameter_count-53,
1088 STR_TERMINATE,
1089 &status);
1090 } else {
1091 srvstr_get_path(ctx,
1092 params,
1093 req->flags2,
1094 &fname,
1095 params+53,
1096 parameter_count-53,
1097 STR_TERMINATE,
1098 &status);
1099 }
1100 if (!NT_STATUS_IS_OK(status)) {
1101 reply_nterror(req, status);
1102 goto out;
1103 }
1104
1105 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1106 case_state = set_posix_case_semantics(ctx, conn);
1107 if (!case_state) {
1108 reply_nterror(req, NT_STATUS_NO_MEMORY);
1109 goto out;
1110 }
1111 }
1112
1113 ucf_flags = filename_create_ucf_flags(req, create_disposition);
1114 status = filename_convert(ctx,
1115 conn,
1116 fname,
1117 ucf_flags,
1118 NULL,
1119 NULL,
1120 &smb_fname);
1121
1122 TALLOC_FREE(case_state);
1123
1124 if (!NT_STATUS_IS_OK(status)) {
1125 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1126 reply_botherror(req,
1127 NT_STATUS_PATH_NOT_COVERED,
1128 ERRSRV, ERRbadpath);
1129 goto out;
1130 }
1131 reply_nterror(req, status);
1132 goto out;
1133 }
1134
1135 /* Ensure the data_len is correct for the sd and ea values given. */
1136 if ((ea_len + sd_len > data_count)
1137 || (ea_len > data_count) || (sd_len > data_count)
1138 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1139 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1140 "%u, data_count = %u\n", (unsigned int)ea_len,
1141 (unsigned int)sd_len, (unsigned int)data_count));
1142 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1143 goto out;
1144 }
1145
1146 if (sd_len) {
1147 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1148 sd_len));
1149
1150 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1151 &sd);
1152 if (!NT_STATUS_IS_OK(status)) {
1153 DEBUG(10, ("call_nt_transact_create: "
1154 "unmarshall_sec_desc failed: %s\n",
1155 nt_errstr(status)));
1156 reply_nterror(req, status);
1157 goto out;
1158 }
1159 }
1160
1161 if (ea_len) {
1162 if (!lp_ea_support(SNUM(conn))) {
1163 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1164 "EA's not supported.\n",
1165 (unsigned int)ea_len));
1166 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1167 goto out;
1168 }
1169
1170 if (ea_len < 10) {
1171 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1172 "too small (should be more than 10)\n",
1173 (unsigned int)ea_len ));
1174 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1175 goto out;
1176 }
1177
1178 /* We have already checked that ea_len <= data_count here. */
1179 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1180 ea_len);
1181 if (ea_list == NULL) {
1182 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1183 goto out;
1184 }
1185
1186 if (!req->posix_pathnames &&
1187 ea_list_has_invalid_name(ea_list)) {
1188 /* Realloc the size of parameters and data we will return */
1189 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1190 /* Extended response is 32 more byyes. */
1191 param_len = 101;
1192 } else {
1193 param_len = 69;
1194 }
1195 params = nttrans_realloc(ppparams, param_len);
1196 if(params == NULL) {
1197 reply_nterror(req, NT_STATUS_NO_MEMORY);
1198 goto out;
1199 }
1200
1201 memset(params, '\0', param_len);
1202 send_nt_replies(conn, req, STATUS_INVALID_EA_NAME,
1203 params, param_len, NULL, 0);
1204 goto out;
1205 }
1206 }
1207
1208 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1209 if (oplock_request) {
1210 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1211 ? BATCH_OPLOCK : 0;
1212 }
1213
1214 /*
1215 * Bug #6898 - clients using Windows opens should
1216 * never be able to set this attribute into the
1217 * VFS.
1218 */
1219 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1220
1221 status = SMB_VFS_CREATE_FILE(
1222 conn, /* conn */
1223 req, /* req */
1224 root_dir_fid, /* root_dir_fid */
1225 smb_fname, /* fname */
1226 access_mask, /* access_mask */
1227 share_access, /* share_access */
1228 create_disposition, /* create_disposition*/
1229 create_options, /* create_options */
1230 file_attributes, /* file_attributes */
1231 oplock_request, /* oplock_request */
1232 NULL, /* lease */
1233 allocation_size, /* allocation_size */
1234 0, /* private_flags */
1235 sd, /* sd */
1236 ea_list, /* ea_list */
1237 &fsp, /* result */
1238 &info, /* pinfo */
1239 NULL, NULL); /* create context */
1240
1241 if(!NT_STATUS_IS_OK(status)) {
1242 if (open_was_deferred(req->xconn, req->mid)) {
1243 /* We have re-scheduled this call, no error. */
1244 return;
1245 }
1246 reply_openerror(req, status);
1247 goto out;
1248 }
1249
1250 /* Ensure we're pointing at the correct stat struct. */
1251 TALLOC_FREE(smb_fname);
1252 smb_fname = fsp->fsp_name;
1253
1254 /*
1255 * If the caller set the extended oplock request bit
1256 * and we granted one (by whatever means) - set the
1257 * correct bit for extended oplock reply.
1258 */
1259
1260 if (oplock_request &&
1261 (lp_fake_oplocks(SNUM(conn))
1262 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1263
1264 /*
1265 * Exclusive oplock granted
1266 */
1267
1268 if (flags & REQUEST_BATCH_OPLOCK) {
1269 oplock_granted = BATCH_OPLOCK_RETURN;
1270 } else {
1271 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1272 }
1273 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1274 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1275 } else {
1276 oplock_granted = NO_OPLOCK_RETURN;
1277 }
1278
1279 file_len = smb_fname->st.st_ex_size;
1280
1281 /* Realloc the size of parameters and data we will return */
1282 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1283 /* Extended response is 32 more byyes. */
1284 param_len = 101;
1285 } else {
1286 param_len = 69;
1287 }
1288 params = nttrans_realloc(ppparams, param_len);
1289 if(params == NULL) {
1290 reply_nterror(req, NT_STATUS_NO_MEMORY);
1291 goto out;
1292 }
1293
1294 p = params;
1295 SCVAL(p, 0, oplock_granted);
1296
1297 p += 2;
1298 SSVAL(p,0,fsp->fnum);
1299 p += 2;
1300 if ((create_disposition == FILE_SUPERSEDE)
1301 && (info == FILE_WAS_OVERWRITTEN)) {
1302 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1303 } else {
1304 SIVAL(p,0,info);
1305 }
1306 p += 8;
1307
1308 fattr = dos_mode(conn, smb_fname);
1309 if (fattr == 0) {
1310 fattr = FILE_ATTRIBUTE_NORMAL;
1311 }
1312
1313 /* Create time. */
1314 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1315 a_timespec = smb_fname->st.st_ex_atime;
1316 m_timespec = smb_fname->st.st_ex_mtime;
1317 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1318
1319 if (lp_dos_filetime_resolution(SNUM(conn))) {
1320 dos_filetime_timespec(&create_timespec);
1321 dos_filetime_timespec(&a_timespec);
1322 dos_filetime_timespec(&m_timespec);
1323 dos_filetime_timespec(&c_timespec);
1324 }
1325
1326 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1327 p += 8;
1328 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1329 p += 8;
1330 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1331 p += 8;
1332 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1333 p += 8;
1334 SIVAL(p,0,fattr); /* File Attributes. */
1335 p += 4;
1336 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1337 p += 8;
1338 SOFF_T(p,0,file_len);
1339 p += 8;
1340 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1341 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1342 unsigned int num_streams = 0;
1343 struct stream_struct *streams = NULL;
1344
1345 if (lp_ea_support(SNUM(conn))) {
1346 size_t num_names = 0;
1347 /* Do we have any EA's ? */
1348 status = get_ea_names_from_file(
1349 ctx, conn, fsp, smb_fname, NULL, &num_names);
1350 if (NT_STATUS_IS_OK(status) && num_names) {
1351 file_status &= ~NO_EAS;
1352 }
1353 }
1354
1355 status = vfs_streaminfo(conn, NULL, smb_fname, ctx,
1356 &num_streams, &streams);
1357 /* There is always one stream, ::$DATA. */
1358 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1359 file_status &= ~NO_SUBSTREAMS;
1360 }
1361 TALLOC_FREE(streams);
1362 SSVAL(p,2,file_status);
1363 }
1364 p += 4;
1365 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1366
1367 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1368 uint32_t perms = 0;
1369 p += 25;
1370 if (fsp->is_directory ||
1371 fsp->can_write ||
1372 can_write_to_file(conn, smb_fname)) {
1373 perms = FILE_GENERIC_ALL;
1374 } else {
1375 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1376 }
1377 SIVAL(p,0,perms);
1378 }
1379
1380 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1381 smb_fname_str_dbg(smb_fname)));
1382
1383 /* Send the required number of replies */
1384 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1385 out:
1386 return;
1387 }
1388
1389 /****************************************************************************
1390 Reply to a NT CANCEL request.
1391 conn POINTER CAN BE NULL HERE !
1392 ****************************************************************************/
1393
1394 void reply_ntcancel(struct smb_request *req)
1395 {
1396 struct smbXsrv_connection *xconn = req->xconn;
1397 struct smbd_server_connection *sconn = req->sconn;
1398
1399 /*
1400 * Go through and cancel any pending change notifies.
1401 */
1402
1403 START_PROFILE(SMBntcancel);
1404 srv_cancel_sign_response(xconn);
1405 remove_pending_change_notify_requests_by_mid(sconn, req->mid);
1406 remove_pending_lock_requests_by_mid_smb1(sconn, req->mid);
1407
1408 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1409 (unsigned long long)req->mid));
1410
1411 END_PROFILE(SMBntcancel);
1412 return;
1413 }
1414
1415 /****************************************************************************
1416 Copy a file.
1417 ****************************************************************************/
1418
1419 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1420 connection_struct *conn,
1421 struct smb_request *req,
1422 struct smb_filename *smb_fname_src,
1423 struct smb_filename *smb_fname_dst,
1424 uint32_t attrs)
1425 {
1426 files_struct *fsp1,*fsp2;
1427 uint32_t fattr;
1428 int info;
1429 off_t ret=-1;
1430 NTSTATUS status = NT_STATUS_OK;
1431 char *parent;
1432
1433 if (!CAN_WRITE(conn)) {
1434 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1435 goto out;
1436 }
1437
1438 /* Source must already exist. */
1439 if (!VALID_STAT(smb_fname_src->st)) {
1440 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1441 goto out;
1442 }
1443
1444 /* Ensure attributes match. */
1445 fattr = dos_mode(conn, smb_fname_src);
1446 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1447 status = NT_STATUS_NO_SUCH_FILE;
1448 goto out;
1449 }
1450
1451 /* Disallow if dst file already exists. */
1452 if (VALID_STAT(smb_fname_dst->st)) {
1453 status = NT_STATUS_OBJECT_NAME_COLLISION;
1454 goto out;
1455 }
1456
1457 /* No links from a directory. */
1458 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1459 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1460 goto out;
1461 }
1462
1463 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1464 smb_fname_str_dbg(smb_fname_src),
1465 smb_fname_str_dbg(smb_fname_dst)));
1466
1467 status = SMB_VFS_CREATE_FILE(
1468 conn, /* conn */
1469 req, /* req */
1470 0, /* root_dir_fid */
1471 smb_fname_src, /* fname */
1472 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1473 FILE_READ_EA, /* access_mask */
1474 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1475 FILE_SHARE_DELETE),
1476 FILE_OPEN, /* create_disposition*/
1477 0, /* create_options */
1478 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1479 NO_OPLOCK, /* oplock_request */
1480 NULL, /* lease */
1481 0, /* allocation_size */
1482 0, /* private_flags */
1483 NULL, /* sd */
1484 NULL, /* ea_list */
1485 &fsp1, /* result */
1486 &info, /* pinfo */
1487 NULL, NULL); /* create context */
1488
1489 if (!NT_STATUS_IS_OK(status)) {
1490 goto out;
1491 }
1492
1493 status = SMB_VFS_CREATE_FILE(
1494 conn, /* conn */
1495 req, /* req */
1496 0, /* root_dir_fid */
1497 smb_fname_dst, /* fname */
1498 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1499 FILE_WRITE_EA, /* access_mask */
1500 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1501 FILE_SHARE_DELETE),
1502 FILE_CREATE, /* create_disposition*/
1503 0, /* create_options */
1504 fattr, /* file_attributes */
1505 NO_OPLOCK, /* oplock_request */
1506 NULL, /* lease */
1507 0, /* allocation_size */
1508 0, /* private_flags */
1509 NULL, /* sd */
1510 NULL, /* ea_list */
1511 &fsp2, /* result */
1512 &info, /* pinfo */
1513 NULL, NULL); /* create context */
1514
1515 if (!NT_STATUS_IS_OK(status)) {
1516 close_file(NULL, fsp1, ERROR_CLOSE);
1517 goto out;
1518 }
1519
1520 if (smb_fname_src->st.st_ex_size) {
1521 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1522 }
1523
1524 /*
1525 * As we are opening fsp1 read-only we only expect
1526 * an error on close on fsp2 if we are out of space.
1527 * Thus we don't look at the error return from the
1528 * close of fsp1.
1529 */
1530 close_file(NULL, fsp1, NORMAL_CLOSE);
1531
1532 /* Ensure the modtime is set correctly on the destination file. */
1533 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1534
1535 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1536
1537 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1538 creates the file. This isn't the correct thing to do in the copy
1539 case. JRA */
1540 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1541 NULL)) {
1542 status = NT_STATUS_NO_MEMORY;
1543 goto out;
1544 }
1545 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1546 TALLOC_FREE(parent);
1547
1548 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1549 status = NT_STATUS_DISK_FULL;
1550 goto out;
1551 }
1552 out:
1553 if (!NT_STATUS_IS_OK(status)) {
1554 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1555 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1556 smb_fname_str_dbg(smb_fname_dst)));
1557 }
1558
1559 return status;
1560 }
1561
1562 /****************************************************************************
1563 Reply to a NT rename request.
1564 ****************************************************************************/
1565
1566 void reply_ntrename(struct smb_request *req)
1567 {
1568 connection_struct *conn = req->conn;
1569 struct smb_filename *smb_fname_old = NULL;
1570 struct smb_filename *smb_fname_new = NULL;
1571 char *oldname = NULL;
1572 char *newname = NULL;
1573 const char *p;
1574 NTSTATUS status;
1575 bool src_has_wcard = False;
1576 bool dest_has_wcard = False;
1577 uint32_t attrs;
1578 uint32_t ucf_flags_src = ucf_flags_from_smb_request(req);
1579 uint32_t ucf_flags_dst = ucf_flags_from_smb_request(req);
1580 uint16_t rename_type;
1581 TALLOC_CTX *ctx = talloc_tos();
1582 bool stream_rename = false;
1583
1584 START_PROFILE(SMBntrename);
1585
1586 if (req->wct < 4) {
1587 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1588 goto out;
1589 }
1590
1591 attrs = SVAL(req->vwv+0, 0);
1592 rename_type = SVAL(req->vwv+1, 0);
1593
1594 p = (const char *)req->buf + 1;
1595 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1596 &status, &src_has_wcard);
1597 if (!NT_STATUS_IS_OK(status)) {
1598 reply_nterror(req, status);
1599 goto out;
1600 }
1601
1602 if (!req->posix_pathnames && ms_has_wild(oldname)) {
1603 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1604 goto out;
1605 }
1606
1607 p++;
1608 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1609 &status, &dest_has_wcard);
1610 if (!NT_STATUS_IS_OK(status)) {
1611 reply_nterror(req, status);
1612 goto out;
1613 }
1614
1615 if (!req->posix_pathnames) {
1616 /* The newname must begin with a ':' if the
1617 oldname contains a ':'. */
1618 if (strchr_m(oldname, ':')) {
1619 if (newname[0] != ':') {
1620 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1621 goto out;
1622 }
1623 stream_rename = true;
1624 }
1625 }
1626
1627 /*
1628 * If this is a rename operation, allow wildcards and save the
1629 * destination's last component.
1630 */
1631 if (rename_type == RENAME_FLAG_RENAME) {
1632 ucf_flags_src |= UCF_COND_ALLOW_WCARD_LCOMP;
1633 ucf_flags_dst |= UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1634 }
1635
1636 /* rename_internals() calls unix_convert(), so don't call it here. */
1637 status = filename_convert(ctx, conn,
1638 oldname,
1639 ucf_flags_src,
1640 NULL,
1641 NULL,
1642 &smb_fname_old);
1643 if (!NT_STATUS_IS_OK(status)) {
1644 if (NT_STATUS_EQUAL(status,
1645 NT_STATUS_PATH_NOT_COVERED)) {
1646 reply_botherror(req,
1647 NT_STATUS_PATH_NOT_COVERED,
1648 ERRSRV, ERRbadpath);
1649 goto out;
1650 }
1651 reply_nterror(req, status);
1652 goto out;
1653 }
1654
1655 status = filename_convert(ctx, conn,
1656 newname,
1657 ucf_flags_dst,
1658 NULL,
1659 &dest_has_wcard,
1660 &smb_fname_new);
1661 if (!NT_STATUS_IS_OK(status)) {
1662 if (NT_STATUS_EQUAL(status,
1663 NT_STATUS_PATH_NOT_COVERED)) {
1664 reply_botherror(req,
1665 NT_STATUS_PATH_NOT_COVERED,
1666 ERRSRV, ERRbadpath);
1667 goto out;
1668 }
1669 reply_nterror(req, status);
1670 goto out;
1671 }
1672
1673 if (stream_rename) {
1674 /* smb_fname_new must be the same as smb_fname_old. */
1675 TALLOC_FREE(smb_fname_new->base_name);
1676 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1677 smb_fname_old->base_name);
1678 if (!smb_fname_new->base_name) {
1679 reply_nterror(req, NT_STATUS_NO_MEMORY);
1680 goto out;
1681 }
1682 }
1683
1684 DEBUG(3,("reply_ntrename: %s -> %s\n",
1685 smb_fname_str_dbg(smb_fname_old),
1686 smb_fname_str_dbg(smb_fname_new)));
1687
1688 switch(rename_type) {
1689 case RENAME_FLAG_RENAME:
1690 status = rename_internals(ctx, conn, req,
1691 smb_fname_old, smb_fname_new,
1692 attrs, False, src_has_wcard,
1693 dest_has_wcard,
1694 DELETE_ACCESS);
1695 break;
1696 case RENAME_FLAG_HARD_LINK:
1697 if (src_has_wcard || dest_has_wcard) {
1698 /* No wildcards. */
1699 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1700 } else {
1701 status = hardlink_internals(ctx, conn,
1702 req,
1703 false,
1704 smb_fname_old,
1705 smb_fname_new);
1706 }
1707 break;
1708 case RENAME_FLAG_COPY:
1709 if (src_has_wcard || dest_has_wcard) {
1710 /* No wildcards. */
1711 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1712 } else {
1713 status = copy_internals(ctx, conn, req,
1714 smb_fname_old,
1715 smb_fname_new,
1716 attrs);
1717 }
1718 break;
1719 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1720 status = NT_STATUS_INVALID_PARAMETER;
1721 break;
1722 default:
1723 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1724 break;
1725 }
1726
1727 if (!NT_STATUS_IS_OK(status)) {
1728 if (open_was_deferred(req->xconn, req->mid)) {
1729 /* We have re-scheduled this call. */
1730 goto out;
1731 }
1732
1733 reply_nterror(req, status);
1734 goto out;
1735 }
1736
1737 reply_outbuf(req, 0, 0);
1738 out:
1739 END_PROFILE(SMBntrename);
1740 return;
1741 }
1742
1743 /****************************************************************************
1744 Reply to a notify change - queue the request and
1745 don't allow a directory to be opened.
1746 ****************************************************************************/
1747
1748 static void smbd_smb1_notify_reply(struct smb_request *req,
1749 NTSTATUS error_code,
1750 uint8_t *buf, size_t len)
1751 {
1752 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1753 }
1754
1755 static void call_nt_transact_notify_change(connection_struct *conn,
1756 struct smb_request *req,
1757 uint16_t **ppsetup,
1758 uint32_t setup_count,
1759 char **ppparams,
1760 uint32_t parameter_count,
1761 char **ppdata, uint32_t data_count,
1762 uint32_t max_data_count,
1763 uint32_t max_param_count)
1764 {
1765 uint16_t *setup = *ppsetup;
1766 files_struct *fsp;
1767 uint32_t filter;
1768 NTSTATUS status;
1769 bool recursive;
1770
1771 if(setup_count < 6) {
1772 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1773 return;
1774 }
1775
1776 fsp = file_fsp(req, SVAL(setup,4));
1777 filter = IVAL(setup, 0);
1778 recursive = (SVAL(setup, 6) != 0) ? True : False;
1779
1780 DEBUG(3,("call_nt_transact_notify_change\n"));
1781
1782 if(!fsp) {
1783 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1784 return;
1785 }
1786
1787 {
1788 char *filter_string;
1789
1790 if (!(filter_string = notify_filter_string(NULL, filter))) {
1791 reply_nterror(req,NT_STATUS_NO_MEMORY);
1792 return;
1793 }
1794
1795 DEBUG(3,("call_nt_transact_notify_change: notify change "
1796 "called on %s, filter = %s, recursive = %d\n",
1797 fsp_str_dbg(fsp), filter_string, recursive));
1798
1799 TALLOC_FREE(filter_string);
1800 }
1801
1802 if((!fsp->is_directory) || (conn != fsp->conn)) {
1803 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1804 return;
1805 }
1806
1807 if (fsp->notify == NULL) {
1808
1809 status = change_notify_create(fsp, filter, recursive);
1810
1811 if (!NT_STATUS_IS_OK(status)) {
1812 DEBUG(10, ("change_notify_create returned %s\n",
1813 nt_errstr(status)));
1814 reply_nterror(req, status);
1815 return;
1816 }
1817 }
1818
1819 if (change_notify_fsp_has_changes(fsp)) {
1820
1821 /*
1822 * We've got changes pending, respond immediately
1823 */
1824
1825 /*
1826 * TODO: write a torture test to check the filtering behaviour
1827 * here.
1828 */
1829
1830 change_notify_reply(req,
1831 NT_STATUS_OK,
1832 max_param_count,
1833 fsp->notify,
1834 smbd_smb1_notify_reply);
1835
1836 /*
1837 * change_notify_reply() above has independently sent its
1838 * results
1839 */
1840 return;
1841 }
1842
1843 /*
1844 * No changes pending, queue the request
1845 */
1846
1847 status = change_notify_add_request(req,
1848 max_param_count,
1849 filter,
1850 recursive, fsp,
1851 smbd_smb1_notify_reply);
1852 if (!NT_STATUS_IS_OK(status)) {
1853 reply_nterror(req, status);
1854 }
1855 return;
1856 }
1857
1858 /****************************************************************************
1859 Reply to an NT transact rename command.
1860 ****************************************************************************/
1861
1862 static void call_nt_transact_rename(connection_struct *conn,
1863 struct smb_request *req,
1864 uint16_t **ppsetup, uint32_t setup_count,
1865 char **ppparams, uint32_t parameter_count,
1866 char **ppdata, uint32_t data_count,
1867 uint32_t max_data_count)
1868 {
1869 char *params = *ppparams;
1870 char *new_name = NULL;
1871 files_struct *fsp = NULL;
1872 bool dest_has_wcard = False;
1873 NTSTATUS status;
1874 TALLOC_CTX *ctx = talloc_tos();
1875
1876 if(parameter_count < 5) {
1877 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1878 return;
1879 }
1880
1881 fsp = file_fsp(req, SVAL(params, 0));
1882 if (!check_fsp(conn, req, fsp)) {
1883 return;
1884 }
1885 if (req->posix_pathnames) {
1886 srvstr_get_path_wcard_posix(ctx,
1887 params,
1888 req->flags2,
1889 &new_name,
1890 params+4,
1891 parameter_count - 4,
1892 STR_TERMINATE,
1893 &status,
1894 &dest_has_wcard);
1895 } else {
1896 srvstr_get_path_wcard(ctx,
1897 params,
1898 req->flags2,
1899 &new_name,
1900 params+4,
1901 parameter_count - 4,
1902 STR_TERMINATE,
1903 &status,
1904 &dest_has_wcard);
1905 }
1906
1907 if (!NT_STATUS_IS_OK(status)) {
1908 reply_nterror(req, status);
1909 return;
1910 }
1911
1912 /*
1913 * W2K3 ignores this request as the RAW-RENAME test
1914 * demonstrates, so we do.
1915 */
1916 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1917
1918 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1919 fsp_str_dbg(fsp), new_name));
1920
1921 return;
1922 }
1923
1924 /******************************************************************************
1925 Fake up a completely empty SD.
1926 *******************************************************************************/
1927
1928 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1929 {
1930 size_t sd_size;
1931
1932 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1933 if(!*ppsd) {
1934 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1935 return NT_STATUS_NO_MEMORY;
1936 }
1937
1938 return NT_STATUS_OK;
1939 }
1940
1941 /****************************************************************************
1942 Reply to query a security descriptor.
1943 Callable from SMB1 and SMB2.
1944 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1945 the required size.
1946 ****************************************************************************/
1947
1948 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1949 TALLOC_CTX *mem_ctx,
1950 files_struct *fsp,
1951 uint32_t security_info_wanted,
1952 uint32_t max_data_count,
1953 uint8_t **ppmarshalled_sd,
1954 size_t *psd_size)
1955 {
1956 NTSTATUS status;
1957 struct security_descriptor *psd = NULL;
1958 TALLOC_CTX *frame = talloc_stackframe();
1959
1960 /*
1961 * Get the permissions to return.
1962 */
1963
1964 if ((security_info_wanted & SECINFO_SACL) &&
1965 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1966 DEBUG(10, ("Access to SACL denied.\n"));
1967 TALLOC_FREE(frame);
1968 return NT_STATUS_ACCESS_DENIED;
1969 }
1970
1971 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1972 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1973 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1974 TALLOC_FREE(frame);
1975 return NT_STATUS_ACCESS_DENIED;
1976 }
1977
1978 if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) {
1979 DEBUG(10, ("ACL get on symlink %s denied.\n",
1980 fsp_str_dbg(fsp)));
1981 TALLOC_FREE(frame);
1982 return NT_STATUS_ACCESS_DENIED;
1983 }
1984
1985 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1986 SECINFO_GROUP|SECINFO_SACL)) {
1987 /* Don't return SECINFO_LABEL if anything else was
1988 requested. See bug #8458. */
1989 security_info_wanted &= ~SECINFO_LABEL;
1990 }
1991
1992 if (!lp_nt_acl_support(SNUM(conn))) {
1993 status = get_null_nt_acl(frame, &psd);
1994 } else if (security_info_wanted & SECINFO_LABEL) {
1995 /* Like W2K3 return a null object. */
1996 status = get_null_nt_acl(frame, &psd);
1997 } else {
1998 status = SMB_VFS_FGET_NT_ACL(
1999 fsp, security_info_wanted, frame, &psd);
2000 }
2001 if (!NT_STATUS_IS_OK(status)) {
2002 TALLOC_FREE(frame);
2003 return status;
2004 }
2005
2006 if (!(security_info_wanted & SECINFO_OWNER)) {
2007 psd->owner_sid = NULL;
2008 }
2009 if (!(security_info_wanted & SECINFO_GROUP)) {
2010 psd->group_sid = NULL;
2011 }
2012 if (!(security_info_wanted & SECINFO_DACL)) {
2013 psd->type &= ~SEC_DESC_DACL_PRESENT;
2014 psd->dacl = NULL;
2015 }
2016 if (!(security_info_wanted & SECINFO_SACL)) {
2017 psd->type &= ~SEC_DESC_SACL_PRESENT;
2018 psd->sacl = NULL;
2019 }
2020
2021 /* If the SACL/DACL is NULL, but was requested, we mark that it is
2022 * present in the reply to match Windows behavior */
2023 if (psd->sacl == NULL &&
2024 security_info_wanted & SECINFO_SACL)
2025 psd->type |= SEC_DESC_SACL_PRESENT;
2026 if (psd->dacl == NULL &&
2027 security_info_wanted & SECINFO_DACL)
2028 psd->type |= SEC_DESC_DACL_PRESENT;
2029
2030 if (security_info_wanted & SECINFO_LABEL) {
2031 /* Like W2K3 return a null object. */
2032 psd->owner_sid = NULL;
2033 psd->group_sid = NULL;
2034 psd->dacl = NULL;
2035 psd->sacl = NULL;
2036 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
2037 }
2038
2039 *psd_size = ndr_size_security_descriptor(psd, 0);
2040
2041 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
2042 (unsigned long)*psd_size));
2043
2044 if (DEBUGLEVEL >= 10) {
2045 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
2046 fsp_str_dbg(fsp)));
2047 NDR_PRINT_DEBUG(security_descriptor, psd);
2048 }
2049
2050 if (max_data_count < *psd_size) {
2051 TALLOC_FREE(frame);
2052 return NT_STATUS_BUFFER_TOO_SMALL;
2053 }
2054
2055 status = marshall_sec_desc(mem_ctx, psd,
2056 ppmarshalled_sd, psd_size);
2057
2058 if (!NT_STATUS_IS_OK(status)) {
2059 TALLOC_FREE(frame);
2060 return status;
2061 }
2062
2063 TALLOC_FREE(frame);
2064 return NT_STATUS_OK;
2065 }
2066
2067 /****************************************************************************
2068 SMB1 reply to query a security descriptor.
2069 ****************************************************************************/
2070
2071 static void call_nt_transact_query_security_desc(connection_struct *conn,
2072 struct smb_request *req,
2073 uint16_t **ppsetup,
2074 uint32_t setup_count,
2075 char **ppparams,
2076 uint32_t parameter_count,
2077 char **ppdata,
2078 uint32_t data_count,
2079 uint32_t max_data_count)
2080 {
2081 char *params = *ppparams;
2082 char *data = *ppdata;
2083 size_t sd_size = 0;
2084 uint32_t security_info_wanted;
2085 files_struct *fsp = NULL;
2086 NTSTATUS status;
2087 uint8_t *marshalled_sd = NULL;
2088
2089 if(parameter_count < 8) {
2090 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2091 return;
2092 }
2093
2094 fsp = file_fsp(req, SVAL(params,0));
2095 if(!fsp) {
2096 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2097 return;
2098 }
2099
2100 security_info_wanted = IVAL(params,4);
2101
2102 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2103 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2104 (unsigned int)security_info_wanted));
2105
2106 params = nttrans_realloc(ppparams, 4);
2107 if(params == NULL) {
2108 reply_nterror(req, NT_STATUS_NO_MEMORY);
2109 return;
2110 }
2111
2112 /*
2113 * Get the permissions to return.
2114 */
2115
2116 status = smbd_do_query_security_desc(conn,
2117 talloc_tos(),
2118 fsp,
2119 security_info_wanted &
2120 SMB_SUPPORTED_SECINFO_FLAGS,
2121 max_data_count,
2122 &marshalled_sd,
2123 &sd_size);
2124
2125 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2126 SIVAL(params,0,(uint32_t)sd_size);
2127 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2128 params, 4, NULL, 0);
2129 return;
2130 }
2131
2132 if (!NT_STATUS_IS_OK(status)) {
2133 reply_nterror(req, status);
2134 return;
2135 }
2136
2137 SMB_ASSERT(sd_size > 0);
2138
2139 SIVAL(params,0,(uint32_t)sd_size);
2140
2141 if (max_data_count < sd_size) {
2142 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2143 params, 4, NULL, 0);
2144 return;
2145 }
2146
2147 /*
2148 * Allocate the data we will return.
2149 */
2150
2151 data = nttrans_realloc(ppdata, sd_size);
2152 if(data == NULL) {
2153 reply_nterror(req, NT_STATUS_NO_MEMORY);
2154 return;
2155 }
2156
2157 memcpy(data, marshalled_sd, sd_size);
2158
2159 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2160
2161 return;
2162 }
2163
2164 /****************************************************************************
2165 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2166 ****************************************************************************/
2167
2168 static void call_nt_transact_set_security_desc(connection_struct *conn,
2169 struct smb_request *req,
2170 uint16_t **ppsetup,
2171 uint32_t setup_count,
2172 char **ppparams,
2173 uint32_t parameter_count,
2174 char **ppdata,
2175 uint32_t data_count,
2176 uint32_t max_data_count)
2177 {
2178 char *params= *ppparams;
2179 char *data = *ppdata;
2180 files_struct *fsp = NULL;
2181 uint32_t security_info_sent = 0;
2182 NTSTATUS status;
2183
2184 if(parameter_count < 8) {
2185 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2186 return;
2187 }
2188
2189 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2190 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2191 return;
2192 }
2193
2194 if (!CAN_WRITE(fsp->conn)) {
2195 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2196 return;
2197 }
2198
2199 if(!lp_nt_acl_support(SNUM(conn))) {
2200 goto done;
2201 }
2202
2203 security_info_sent = IVAL(params,4);
2204
2205 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2206 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2207
2208 if (data_count == 0) {
2209 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2210 return;
2211 }
2212
2213 status = set_sd_blob(fsp, (uint8_t *)data, data_count,
2214 security_info_sent & SMB_SUPPORTED_SECINFO_FLAGS);
2215 if (!NT_STATUS_IS_OK(status)) {
2216 reply_nterror(req, status);
2217 return;
2218 }
2219
2220 done:
2221 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2222 return;
2223 }
2224
2225 /****************************************************************************
2226 Reply to NT IOCTL
2227 ****************************************************************************/
2228
2229 static void call_nt_transact_ioctl(connection_struct *conn,
2230 struct smb_request *req,
2231 uint16_t **ppsetup, uint32_t setup_count,
2232 char **ppparams, uint32_t parameter_count,
2233 char **ppdata, uint32_t data_count,
2234 uint32_t max_data_count)
2235 {
2236 NTSTATUS status;
2237 uint32_t function;
2238 uint16_t fidnum;
2239 files_struct *fsp;
2240 uint8_t isFSctl;
2241 uint8_t compfilter;
2242 char *out_data = NULL;
2243 uint32_t out_data_len = 0;
2244 char *pdata = *ppdata;
2245 TALLOC_CTX *ctx = talloc_tos();
2246
2247 if (setup_count != 8) {
2248 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2249 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2250 return;
2251 }
2252
2253 function = IVAL(*ppsetup, 0);
2254 fidnum = SVAL(*ppsetup, 4);
2255 isFSctl = CVAL(*ppsetup, 6);
2256 compfilter = CVAL(*ppsetup, 7);
2257
2258 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2259 function, fidnum, isFSctl, compfilter));
2260
2261 fsp=file_fsp(req, fidnum);
2262
2263 /*
2264 * We don't really implement IOCTLs, especially on files.
2265 */
2266 if (!isFSctl) {
2267 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2268 isFSctl));
2269 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2270 return;
2271 }
2272
2273 /* Has to be for an open file! */
2274 if (!check_fsp_open(conn, req, fsp)) {
2275 return;
2276 }
2277
2278 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2279
2280 /*
2281 * out_data might be allocated by the VFS module, but talloc should be
2282 * used, and should be cleaned up when the request ends.
2283 */
2284 status = SMB_VFS_FSCTL(fsp,
2285 ctx,
2286 function,
2287 req->flags2,
2288 (uint8_t *)pdata,
2289 data_count,
2290 (uint8_t **)&out_data,
2291 max_data_count,
2292 &out_data_len);
2293 if (!NT_STATUS_IS_OK(status)) {
2294 reply_nterror(req, status);
2295 } else {
2296 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2297 }
2298 }
2299
2300
2301 #ifdef HAVE_SYS_QUOTAS
2302 static enum ndr_err_code fill_qtlist_from_sids(TALLOC_CTX *mem_ctx,
2303 struct files_struct *fsp,
2304 SMB_NTQUOTA_HANDLE *qt_handle,
2305 struct dom_sid *sids,
2306 uint32_t elems)
2307 {
2308 uint32_t i;
2309 TALLOC_CTX *list_ctx = NULL;
2310
2311 list_ctx = talloc_init("quota_sid_list");
2312
2313 if (list_ctx == NULL) {
2314 DBG_ERR("failed to allocate\n");
2315 return NDR_ERR_ALLOC;
2316 }
2317
2318 if (qt_handle->quota_list!=NULL) {
2319 free_ntquota_list(&(qt_handle->quota_list));
2320 }
2321 for (i = 0; i < elems; i++) {
2322 SMB_NTQUOTA_STRUCT qt;
2323 SMB_NTQUOTA_LIST *list_item;
2324 bool ok;
2325
2326 if (!NT_STATUS_IS_OK(vfs_get_ntquota(fsp,
2327 SMB_USER_QUOTA_TYPE,
2328 &sids[i], &qt))) {
2329 /* non fatal error, return empty item in result */
2330 ZERO_STRUCT(qt);
2331 continue;
2332 }
2333
2334
2335 list_item = talloc_zero(list_ctx, SMB_NTQUOTA_LIST);
2336 if (list_item == NULL) {
2337 DBG_ERR("failed to allocate\n");
2338 return NDR_ERR_ALLOC;
2339 }
2340
2341 ok = sid_to_uid(&sids[i], &list_item->uid);
2342 if (!ok) {
2343 struct dom_sid_buf buf;
2344 DBG_WARNING("Could not convert SID %s to uid\n",
2345 dom_sid_str_buf(&sids[i], &buf));
2346 /* No idea what to return here... */
2347 return NDR_ERR_INVALID_POINTER;
2348 }
2349
2350 list_item->quotas = talloc_zero(list_item, SMB_NTQUOTA_STRUCT);
2351 if (list_item->quotas == NULL) {
2352 DBG_ERR("failed to allocate\n");
2353 return NDR_ERR_ALLOC;
2354 }
2355
2356 *list_item->quotas = qt;
2357 list_item->mem_ctx = list_ctx;
2358 DLIST_ADD(qt_handle->quota_list, list_item);
2359 }
2360 qt_handle->tmp_list = qt_handle->quota_list;
2361 return NDR_ERR_SUCCESS;
2362 }
2363
2364 static enum ndr_err_code extract_sids_from_buf(TALLOC_CTX *mem_ctx,
2365 uint32_t sidlistlength,
2366 DATA_BLOB *sid_buf,
2367 struct dom_sid **sids,
2368 uint32_t *num)
2369 {
2370 DATA_BLOB blob;
2371 uint32_t i = 0;
2372 enum ndr_err_code err;
2373
2374 struct sid_list_elem {
2375 struct sid_list_elem *prev, *next;
2376 struct dom_sid sid;
2377 };
2378
2379 struct sid_list_elem *sid_list = NULL;
2380 struct sid_list_elem *iter = NULL;
2381 TALLOC_CTX *list_ctx = talloc_init("sid_list");
2382 if (!list_ctx) {
2383 DBG_ERR("OOM\n");
2384 err = NDR_ERR_ALLOC;
2385 goto done;
2386 }
2387
2388 *num = 0;
2389 *sids = NULL;
2390
2391 if (sidlistlength) {
2392 uint32_t offset = 0;
2393 struct ndr_pull *ndr_pull = NULL;
2394
2395 if (sidlistlength > sid_buf->length) {
2396 DBG_ERR("sid_list_length 0x%x exceeds "
2397 "available bytes %zx\n",
2398 sidlistlength,
2399 sid_buf->length);
2400 err = NDR_ERR_OFFSET;
2401 goto done;
2402 }
2403 while (true) {
2404 struct file_get_quota_info info;
2405 struct sid_list_elem *item = NULL;
2406 uint32_t new_offset = 0;
2407 blob.data = sid_buf->data + offset;
2408 blob.length = sidlistlength - offset;
2409 ndr_pull = ndr_pull_init_blob(&blob, list_ctx);
2410 if (!ndr_pull) {
2411 DBG_ERR("OOM\n");
2412 err = NDR_ERR_ALLOC;
2413 goto done;
2414 }
2415 err = ndr_pull_file_get_quota_info(ndr_pull,
2416 NDR_SCALARS | NDR_BUFFERS, &info);
2417 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2418 DBG_ERR("Failed to pull file_get_quota_info "
2419 "from sidlist buffer\n");
2420 goto done;
2421 }
2422 item = talloc_zero(list_ctx, struct sid_list_elem);
2423 if (!item) {
2424 DBG_ERR("OOM\n");
2425 err = NDR_ERR_ALLOC;
2426 goto done;
2427 }
2428 item->sid = info.sid;
2429 DLIST_ADD(sid_list, item);
2430 i++;
2431 if (i == UINT32_MAX) {
2432 DBG_ERR("Integer overflow\n");
2433 err = NDR_ERR_ARRAY_SIZE;
2434 goto done;
2435 }
2436 new_offset = info.next_entry_offset;
2437
2438 /* if new_offset == 0 no more sid(s) to read. */
2439 if (new_offset == 0) {
2440 break;
2441 }
2442
2443 /* Integer wrap? */
2444 if ((offset + new_offset) < offset) {
2445 DBG_ERR("Integer wrap while adding "
2446 "new_offset 0x%x to current "
2447 "buffer offset 0x%x\n",
2448 new_offset, offset);
2449 err = NDR_ERR_OFFSET;
2450 goto done;
2451 }
2452
2453 offset += new_offset;
2454
2455 /* check if new offset is outside buffer boundry. */
2456 if (offset >= sidlistlength) {
2457 DBG_ERR("bufsize 0x%x exceeded by "
2458 "new offset 0x%x)\n",
2459 sidlistlength,
2460 offset);
2461 err = NDR_ERR_OFFSET;
2462 goto done;
2463 }
2464 }
2465 *sids = talloc_zero_array(mem_ctx, struct dom_sid, i);
2466 if (*sids == NULL) {
2467 DBG_ERR("OOM\n");
2468 err = NDR_ERR_ALLOC;
2469 goto done;
2470 }
2471
2472 *num = i;
2473
2474 for (iter = sid_list, i = 0; iter; iter = iter->next, i++) {
2475 struct dom_sid_buf buf;
2476 (*sids)[i] = iter->sid;
2477 DBG_DEBUG("quota SID[%u] %s\n",
2478 (unsigned int)i,
2479 dom_sid_str_buf(&iter->sid, &buf));
2480 }
2481 }
2482 err = NDR_ERR_SUCCESS;
2483 done:
2484 TALLOC_FREE(list_ctx);
2485 return err;
2486 }
2487
2488 NTSTATUS smbd_do_query_getinfo_quota(TALLOC_CTX *mem_ctx,
2489 files_struct *fsp,
2490 bool restart_scan,
2491 bool return_single,
2492 uint32_t sid_list_length,
2493 DATA_BLOB *sid_buf,
2494 uint32_t max_data_count,
2495 uint8_t **p_data,
2496 uint32_t *p_data_size)
2497 {
2498 NTSTATUS status;
2499 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2500 SMB_NTQUOTA_LIST *qt_list = NULL;
2501 DATA_BLOB blob = data_blob_null;
2502 enum ndr_err_code err;
2503
2504 qt_handle =
2505 (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2506
2507 if (sid_list_length ) {
2508 struct dom_sid *sids;
2509 uint32_t elems = 0;
2510 /*
2511 * error check pulled offsets and lengths for wrap and
2512 * exceeding available bytes.
2513 */
2514 if (sid_list_length > sid_buf->length) {
2515 DBG_ERR("sid_list_length 0x%x exceeds "
2516 "available bytes %zx\n",
2517 sid_list_length,
2518 sid_buf->length);
2519 return NT_STATUS_INVALID_PARAMETER;
2520 }
2521
2522 err = extract_sids_from_buf(mem_ctx, sid_list_length,
2523 sid_buf, &sids, &elems);
2524 if (!NDR_ERR_CODE_IS_SUCCESS(err) || elems == 0) {
2525 return NT_STATUS_INVALID_PARAMETER;
2526 }
2527 err = fill_qtlist_from_sids(mem_ctx,
2528 fsp,
2529 qt_handle,
2530 sids,
2531 elems);
2532 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2533 return NT_STATUS_INVALID_PARAMETER;
2534 }
2535 } else if (restart_scan) {
2536 if (vfs_get_user_ntquota_list(fsp,
2537 &(qt_handle->quota_list))!=0) {
2538 return NT_STATUS_INTERNAL_ERROR;
2539 }
2540 } else {
2541 if (qt_handle->quota_list!=NULL &&
2542 qt_handle->tmp_list==NULL) {
2543 free_ntquota_list(&(qt_handle->quota_list));
2544 }
2545 }
2546
2547 if (restart_scan !=0 ) {
2548 qt_list = qt_handle->quota_list;
2549 } else {
2550 qt_list = qt_handle->tmp_list;
2551 }
2552 status = fill_quota_buffer(mem_ctx, qt_list,
2553 return_single != 0,
2554 max_data_count,
2555 &blob,
2556 &qt_handle->tmp_list);
2557 if (!NT_STATUS_IS_OK(status)) {
2558 return status;
2559 }
2560 if (blob.length > max_data_count) {
2561 return NT_STATUS_BUFFER_TOO_SMALL;
2562 }
2563
2564 *p_data = blob.data;
2565 *p_data_size = blob.length;
2566 return NT_STATUS_OK;
2567 }
2568
2569 /****************************************************************************
2570 Reply to get user quota
2571 ****************************************************************************/
2572
2573 static void call_nt_transact_get_user_quota(connection_struct *conn,
2574 struct smb_request *req,
2575 uint16_t **ppsetup,
2576 uint32_t setup_count,
2577 char **ppparams,
2578 uint32_t parameter_count,
2579 char **ppdata,
2580 uint32_t data_count,
2581 uint32_t max_data_count)
2582 {
2583 NTSTATUS nt_status = NT_STATUS_OK;
2584 char *params = *ppparams;
2585 char *pdata = *ppdata;
2586 int data_len = 0;
2587 int param_len = 0;
2588 files_struct *fsp = NULL;
2589 DATA_BLOB blob = data_blob_null;
2590 struct nttrans_query_quota_params info = {0};
2591 enum ndr_err_code err;
2592 TALLOC_CTX *tmp_ctx = NULL;
2593 uint32_t resp_len = 0;
2594 uint8_t *resp_data = 0;
2595
2596 tmp_ctx = talloc_init("ntquota_list");
2597 if (!tmp_ctx) {
2598 nt_status = NT_STATUS_NO_MEMORY;
2599 goto error;
2600 }
2601
2602 /* access check */
2603 if (get_current_uid(conn) != sec_initial_uid()) {
2604 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2605 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2606 conn->session_info->unix_info->unix_name));
2607 nt_status = NT_STATUS_ACCESS_DENIED;
2608 goto error;
2609 }
2610
2611 blob.data = (uint8_t*)params;
2612 blob.length = parameter_count;
2613
2614 err = ndr_pull_struct_blob(&blob, tmp_ctx, &info,
2615 (ndr_pull_flags_fn_t)ndr_pull_nttrans_query_quota_params);
2616
2617 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2618 DEBUG(0,("TRANSACT_GET_USER_QUOTA: failed to pull "
2619 "query_quota_params."));
2620 nt_status = NT_STATUS_INVALID_PARAMETER;
2621 goto error;
2622 }
2623 DBG_DEBUG("info.return_single_entry = %u, info.restart_scan = %u, "
2624 "info.sid_list_length = %u, info.start_sid_length = %u, "
2625 "info.start_sid_offset = %u\n",
2626 (unsigned int)info.return_single_entry,
2627 (unsigned int)info.restart_scan,
2628 (unsigned int)info.sid_list_length,
2629 (unsigned int)info.start_sid_length,
2630 (unsigned int)info.start_sid_offset);
2631
2632 /* set blob to point at data for further parsing */
2633 blob.data = (uint8_t*)pdata;
2634 blob.length = data_count;
2635 /*
2636 * Although MS-SMB ref is ambiguous here, a microsoft client will
2637 * only ever send a start sid (as part of a list) with
2638 * sid_list_length & start_sid_offset both set to the actual list
2639 * length. Note: Only a single result is returned in this case
2640 * In the case where either start_sid_offset or start_sid_length
2641 * are set alone or if both set (but have different values) then
2642 * it seems windows will return a number of entries from the start
2643 * of the list of users with quotas set. This behaviour is undocumented
2644 * and windows clients do not send messages of that type. As such we
2645 * currently will reject these requests.
2646 */
2647 if (info.start_sid_length
2648 || (info.sid_list_length != info.start_sid_offset)) {
2649 DBG_ERR("TRANSACT_GET_USER_QUOTA: unsupported single or "
2650 "compound sid format\n");
2651 nt_status = NT_STATUS_INVALID_PARAMETER;
2652 goto error;
2653 }
2654
2655 /* maybe we can check the quota_fnum */
2656 fsp = file_fsp(req, info.fid);
2657 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2658 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2659 nt_status = NT_STATUS_INVALID_HANDLE;
2660 goto error;
2661 }
2662 nt_status = smbd_do_query_getinfo_quota(tmp_ctx,
2663 fsp,
2664 info.restart_scan,
2665 info.return_single_entry,
2666 info.sid_list_length,
2667 &blob,
2668 max_data_count,
2669 &resp_data,
2670 &resp_len);
2671 if (!NT_STATUS_IS_OK(nt_status)) {
2672 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MORE_ENTRIES)) {
2673 goto error;
2674 }
2675 nt_status = NT_STATUS_OK;
2676 }
2677
2678 param_len = 4;
2679 params = nttrans_realloc(ppparams, param_len);
2680 if(params == NULL) {
2681 nt_status = NT_STATUS_NO_MEMORY;
2682 goto error;
2683 }
2684
2685 data_len = resp_len;
2686 SIVAL(params, 0, data_len);
2687 pdata = nttrans_realloc(ppdata, data_len);
2688 memcpy(pdata, resp_data, data_len);
2689
2690 TALLOC_FREE(tmp_ctx);
2691 send_nt_replies(conn, req, nt_status, params, param_len,
2692 pdata, data_len);
2693 return;
2694 error:
2695 TALLOC_FREE(tmp_ctx);
2696 reply_nterror(req, nt_status);
2697 }
2698
2699 /****************************************************************************
2700 Reply to set user quota
2701 ****************************************************************************/
2702
2703 static void call_nt_transact_set_user_quota(connection_struct *conn,
2704 struct smb_request *req,
2705 uint16_t **ppsetup,
2706 uint32_t setup_count,
2707 char **ppparams,
2708 uint32_t parameter_count,
2709 char **ppdata,
2710 uint32_t data_count,
2711 uint32_t max_data_count)
2712 {
2713 char *params = *ppparams;
2714 char *pdata = *ppdata;
2715 int data_len=0,param_len=0;
2716 SMB_NTQUOTA_STRUCT qt;
2717 struct file_quota_information info = {0};
2718 enum ndr_err_code err;
2719 struct dom_sid sid;
2720 DATA_BLOB inblob;
2721 files_struct *fsp = NULL;
2722 TALLOC_CTX *ctx = NULL;
2723 NTSTATUS status = NT_STATUS_OK;
2724 ZERO_STRUCT(qt);
2725
2726 /* access check */
2727 if (get_current_uid(conn) != sec_initial_uid()) {
2728 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2729 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2730 conn->session_info->unix_info->unix_name));
2731 status = NT_STATUS_ACCESS_DENIED;
2732 goto error;
2733 }
2734
2735 /*
2736 * Ensure minimum number of parameters sent.
2737 */
2738
2739 if (parameter_count < 2) {
2740 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2741 status = NT_STATUS_INVALID_PARAMETER;
2742 goto error;
2743 }
2744
2745 /* maybe we can check the quota_fnum */
2746 fsp = file_fsp(req, SVAL(params,0));
2747 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2748 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2749 status = NT_STATUS_INVALID_HANDLE;
2750 goto error;
2751 }
2752
2753 ctx = talloc_init("set_user_quota");
2754 if (!ctx) {
2755 status = NT_STATUS_NO_MEMORY;
2756 goto error;
2757 }
2758 inblob.data = (uint8_t*)pdata;
2759 inblob.length = data_count;
2760
2761 err = ndr_pull_struct_blob(
2762 &inblob,
2763 ctx,
2764 &info,
2765 (ndr_pull_flags_fn_t)ndr_pull_file_quota_information);
2766
2767 if (!NDR_ERR_CODE_IS_SUCCESS(err)) {
2768 DEBUG(0,("TRANSACT_SET_USER_QUOTA: failed to pull "
2769 "file_quota_information\n"));
2770 status = NT_STATUS_INVALID_PARAMETER;
2771 goto error;
2772 }
2773 qt.usedspace = info.quota_used;
2774
2775 qt.softlim = info.quota_threshold;
2776
2777 qt.hardlim = info.quota_limit;
2778
2779 sid = info.sid;
2780
2781 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2782 status = NT_STATUS_INTERNAL_ERROR;
2783 goto error;
2784 }
2785
2786 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2787 pdata, data_len);
2788 TALLOC_FREE(ctx);
2789 return;
2790 error:
2791 TALLOC_FREE(ctx);
2792 reply_nterror(req, status);
2793 }
2794 #endif /* HAVE_SYS_QUOTAS */
2795
2796 static void handle_nttrans(connection_struct *conn,
2797 struct trans_state *state,
2798 struct smb_request *req)
2799 {
2800 if (get_Protocol() >= PROTOCOL_NT1) {
2801 req->flags2 |= 0x40; /* IS_LONG_NAME */
2802 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2803 }
2804
2805
2806 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2807
2808 /* Now we must call the relevant NT_TRANS function */
2809 switch(state->call) {
2810 case NT_TRANSACT_CREATE:
2811 {
2812 START_PROFILE(NT_transact_create);
2813 call_nt_transact_create(
2814 conn, req,
2815 &state->setup, state->setup_count,
2816 &state->param, state->total_param,
2817 &state->data, state->total_data,
2818 state->max_data_return);
2819 END_PROFILE(NT_transact_create);
2820 break;
2821 }
2822
2823 case NT_TRANSACT_IOCTL:
2824 {
2825 START_PROFILE(NT_transact_ioctl);
2826 call_nt_transact_ioctl(
2827 conn, req,
2828 &state->setup, state->setup_count,
2829 &state->param, state->total_param,
2830 &state->data, state->total_data,
2831 state->max_data_return);
2832 END_PROFILE(NT_transact_ioctl);
2833 break;
2834 }
2835
2836 case NT_TRANSACT_SET_SECURITY_DESC:
2837 {
2838 START_PROFILE(NT_transact_set_security_desc);
2839 call_nt_transact_set_security_desc(
2840 conn, req,
2841 &state->setup, state->setup_count,
2842 &state->param, state->total_param,
2843 &state->data, state->total_data,
2844 state->max_data_return);
2845 END_PROFILE(NT_transact_set_security_desc);
2846 break;
2847 }
2848
2849 case NT_TRANSACT_NOTIFY_CHANGE:
2850 {
2851 START_PROFILE(NT_transact_notify_change);
2852 call_nt_transact_notify_change(
2853 conn, req,
2854 &state->setup, state->setup_count,
2855 &state->param, state->total_param,
2856 &state->data, state->total_data,
2857 state->max_data_return,
2858 state->max_param_return);
2859 END_PROFILE(NT_transact_notify_change);
2860 break;
2861 }
2862
2863 case NT_TRANSACT_RENAME:
2864 {
2865 START_PROFILE(NT_transact_rename);
2866 call_nt_transact_rename(
2867 conn, req,
2868 &state->setup, state->setup_count,
2869 &state->param, state->total_param,
2870 &state->data, state->total_data,
2871 state->max_data_return);
2872 END_PROFILE(NT_transact_rename);
2873 break;
2874 }
2875
2876 case NT_TRANSACT_QUERY_SECURITY_DESC:
2877 {
2878 START_PROFILE(NT_transact_query_security_desc);
2879 call_nt_transact_query_security_desc(
2880 conn, req,
2881 &state->setup, state->setup_count,
2882 &state->param, state->total_param,
2883 &state->data, state->total_data,
2884 state->max_data_return);
2885 END_PROFILE(NT_transact_query_security_desc);
2886 break;
2887 }
2888
2889 #ifdef HAVE_SYS_QUOTAS
2890 case NT_TRANSACT_GET_USER_QUOTA:
2891 {
2892 START_PROFILE(NT_transact_get_user_quota);
2893 call_nt_transact_get_user_quota(
2894 conn, req,
2895 &state->setup, state->setup_count,
2896 &state->param, state->total_param,
2897 &state->data, state->total_data,
2898 state->max_data_return);
2899 END_PROFILE(NT_transact_get_user_quota);
2900 break;
2901 }
2902
2903 case NT_TRANSACT_SET_USER_QUOTA:
2904 {
2905 START_PROFILE(NT_transact_set_user_quota);
2906 call_nt_transact_set_user_quota(
2907 conn, req,
2908 &state->setup, state->setup_count,
2909 &state->param, state->total_param,
2910 &state->data, state->total_data,
2911 state->max_data_return);
2912 END_PROFILE(NT_transact_set_user_quota);
2913 break;
2914 }
2915 #endif /* HAVE_SYS_QUOTAS */
2916
2917 default:
2918 /* Error in request */
2919 DEBUG(0,("handle_nttrans: Unknown request %d in "
2920 "nttrans call\n", state->call));
2921 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2922 return;
2923 }
2924 return;
2925 }
2926
2927 /****************************************************************************
2928 Reply to a SMBNTtrans.
2929 ****************************************************************************/
2930
2931 void reply_nttrans(struct smb_request *req)
2932 {
2933 connection_struct *conn = req->conn;
2934 uint32_t pscnt;
2935 uint32_t psoff;
2936 uint32_t dscnt;
2937 uint32_t dsoff;
2938 uint16_t function_code;
2939 NTSTATUS result;
2940 struct trans_state *state;
2941
2942 START_PROFILE(SMBnttrans);
2943
2944 if (req->wct < 19) {
2945 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2946 END_PROFILE(SMBnttrans);
2947 return;
2948 }
2949
2950 pscnt = IVAL(req->vwv+9, 1);
2951 psoff = IVAL(req->vwv+11, 1);
2952 dscnt = IVAL(req->vwv+13, 1);
2953 dsoff = IVAL(req->vwv+15, 1);
2954 function_code = SVAL(req->vwv+18, 0);
2955
2956 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2957 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2958 END_PROFILE(SMBnttrans);
2959 return;
2960 }
2961
2962 result = allow_new_trans(conn->pending_trans, req->mid);
2963 if (!NT_STATUS_IS_OK(result)) {
2964 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2965 reply_nterror(req, result);
2966 END_PROFILE(SMBnttrans);
2967 return;
2968 }
2969
2970 if ((state = talloc(conn, struct trans_state)) == NULL) {
2971 reply_nterror(req, NT_STATUS_NO_MEMORY);
2972 END_PROFILE(SMBnttrans);
2973 return;
2974 }
2975
2976 state->cmd = SMBnttrans;
2977
2978 state->mid = req->mid;
2979 state->vuid = req->vuid;
2980 state->total_data = IVAL(req->vwv+3, 1);
2981 state->data = NULL;
2982 state->total_param = IVAL(req->vwv+1, 1);
2983 state->param = NULL;
2984 state->max_data_return = IVAL(req->vwv+7, 1);
2985 state->max_param_return = IVAL(req->vwv+5, 1);
2986
2987 /* setup count is in *words* */
2988 state->setup_count = 2*CVAL(req->vwv+17, 1);
2989 state->setup = NULL;
2990 state->call = function_code;
2991
2992 DEBUG(10, ("num_setup=%u, "
2993 "param_total=%u, this_param=%u, max_param=%u, "
2994 "data_total=%u, this_data=%u, max_data=%u, "
2995 "param_offset=%u, data_offset=%u\n",
2996 (unsigned)state->setup_count,
2997 (unsigned)state->total_param, (unsigned)pscnt,
2998 (unsigned)state->max_param_return,
2999 (unsigned)state->total_data, (unsigned)dscnt,
3000 (unsigned)state->max_data_return,
3001 (unsigned)psoff, (unsigned)dsoff));
3002
3003 /*
3004 * All nttrans messages we handle have smb_wct == 19 +
3005 * state->setup_count. Ensure this is so as a sanity check.
3006 */
3007
3008 if(req->wct != 19 + (state->setup_count/2)) {
3009 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
3010 req->wct, 19 + (state->setup_count/2)));
3011 goto bad_param;
3012 }
3013
3014 /* Don't allow more than 128mb for each value. */
3015 if ((state->total_data > (1024*1024*128)) ||
3016 (state->total_param > (1024*1024*128))) {
3017 reply_nterror(req, NT_STATUS_NO_MEMORY);
3018 END_PROFILE(SMBnttrans);
3019 return;
3020 }
3021
3022 if ((dscnt > state->total_data) || (pscnt > state->total_param))
3023 goto bad_param;
3024
3025 if (state->total_data) {
3026
3027 if (trans_oob(state->total_data, 0, dscnt)
3028 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
3029 goto bad_param;
3030 }
3031
3032 /* Can't use talloc here, the core routines do realloc on the
3033 * params and data. */
3034 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
3035 DEBUG(0,("reply_nttrans: data malloc fail for %u "
3036 "bytes !\n", (unsigned int)state->total_data));
3037 TALLOC_FREE(state);
3038 reply_nterror(req, NT_STATUS_NO_MEMORY);
3039 END_PROFILE(SMBnttrans);
3040 return;
3041 }
3042
3043 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
3044 }
3045
3046 if (state->total_param) {
3047
3048 if (trans_oob(state->total_param, 0, pscnt)
3049 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
3050 goto bad_param;
3051 }
3052
3053 /* Can't use talloc here, the core routines do realloc on the
3054 * params and data. */
3055 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
3056 DEBUG(0,("reply_nttrans: param malloc fail for %u "
3057 "bytes !\n", (unsigned int)state->total_param));
3058 SAFE_FREE(state->data);
3059 TALLOC_FREE(state);
3060 reply_nterror(req, NT_STATUS_NO_MEMORY);
3061 END_PROFILE(SMBnttrans);
3062 return;
3063 }
3064
3065 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
3066 }
3067
3068 state->received_data = dscnt;
3069 state->received_param = pscnt;
3070
3071 if(state->setup_count > 0) {
3072 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
3073 state->setup_count));
3074
3075 /*
3076 * No overflow possible here, state->setup_count is an
3077 * unsigned int, being filled by a single byte from
3078 * CVAL(req->vwv+13, 0) above. The cast in the comparison
3079 * below is not necessary, it's here to clarify things. The
3080 * validity of req->vwv and req->wct has been checked in
3081 * init_smb_request already.
3082 */
3083 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
3084 goto bad_param;
3085 }
3086
3087 state->setup = (uint16_t *)TALLOC(state, state->setup_count);
3088 if (state->setup == NULL) {
3089 DEBUG(0,("reply_nttrans : Out of memory\n"));
3090 SAFE_FREE(state->data);
3091 SAFE_FREE(state->param);
3092 TALLOC_FREE(state);
3093 reply_nterror(req, NT_STATUS_NO_MEMORY);
3094 END_PROFILE(SMBnttrans);
3095 return;
3096 }
3097
3098 memcpy(state->setup, req->vwv+19, state->setup_count);
3099 dump_data(10, (uint8_t *)state->setup, state->setup_count);
3100 }
3101
3102 if ((state->received_data == state->total_data) &&
3103 (state->received_param == state->total_param)) {
3104 handle_nttrans(conn, state, req);
3105 SAFE_FREE(state->param);
3106 SAFE_FREE(state->data);
3107 TALLOC_FREE(state);
3108 END_PROFILE(SMBnttrans);
3109 return;
3110 }
3111
3112 DLIST_ADD(conn->pending_trans, state);
3113
3114 /* We need to send an interim response then receive the rest
3115 of the parameter/data bytes */
3116 reply_outbuf(req, 0, 0);
3117 show_msg((char *)req->outbuf);
3118 END_PROFILE(SMBnttrans);
3119 return;
3120
3121 bad_param:
3122
3123 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
3124 SAFE_FREE(state->data);
3125 SAFE_FREE(state->param);
3126 TALLOC_FREE(state);
3127 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3128 END_PROFILE(SMBnttrans);
3129 return;
3130 }
3131
3132 /****************************************************************************
3133 Reply to a SMBnttranss
3134 ****************************************************************************/
3135
3136 void reply_nttranss(struct smb_request *req)
3137 {
3138 connection_struct *conn = req->conn;
3139 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
3140 struct trans_state *state;
3141
3142 START_PROFILE(SMBnttranss);
3143
3144 show_msg((const char *)req->inbuf);
3145
3146 /* Windows clients expect all replies to
3147 an NT transact secondary (SMBnttranss 0xA1)
3148 to have a command code of NT transact
3149 (SMBnttrans 0xA0). See bug #8989 for details. */
3150 req->cmd = SMBnttrans;
3151
3152 if (req->wct < 18) {
3153 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3154 END_PROFILE(SMBnttranss);
3155 return;
3156 }
3157
3158 for (state = conn->pending_trans; state != NULL;
3159 state = state->next) {
3160 if (state->mid == req->mid) {
3161 break;
3162 }
3163 }
3164
3165 if ((state == NULL) || (state->cmd != SMBnttrans)) {
3166 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3167 END_PROFILE(SMBnttranss);
3168 return;
3169 }
3170
3171 /* Revise state->total_param and state->total_data in case they have
3172 changed downwards */
3173 if (IVAL(req->vwv+1, 1) < state->total_param) {
3174 state->total_param = IVAL(req->vwv+1, 1);
3175 }
3176 if (IVAL(req->vwv+3, 1) < state->total_data) {
3177 state->total_data = IVAL(req->vwv+3, 1);
3178 }
3179
3180 pcnt = IVAL(req->vwv+5, 1);
3181 poff = IVAL(req->vwv+7, 1);
3182 pdisp = IVAL(req->vwv+9, 1);
3183
3184 dcnt = IVAL(req->vwv+11, 1);
3185 doff = IVAL(req->vwv+13, 1);
3186 ddisp = IVAL(req->vwv+15, 1);
3187
3188 state->received_param += pcnt;
3189 state->received_data += dcnt;
3190
3191 if ((state->received_data > state->total_data) ||
3192 (state->received_param > state->total_param))
3193 goto bad_param;
3194
3195 if (pcnt) {
3196 if (trans_oob(state->total_param, pdisp, pcnt)
3197 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3198 goto bad_param;
3199 }
3200 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3201 }
3202
3203 if (dcnt) {
3204 if (trans_oob(state->total_data, ddisp, dcnt)
3205 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3206 goto bad_param;
3207 }
3208 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3209 }
3210
3211 if ((state->received_param < state->total_param) ||
3212 (state->received_data < state->total_data)) {
3213 END_PROFILE(SMBnttranss);
3214 return;
3215 }
3216
3217 handle_nttrans(conn, state, req);
3218
3219 DLIST_REMOVE(conn->pending_trans, state);
3220 SAFE_FREE(state->data);
3221 SAFE_FREE(state->param);
3222 TALLOC_FREE(state);
3223 END_PROFILE(SMBnttranss);
3224 return;
3225
3226 bad_param:
3227
3228 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3229 DLIST_REMOVE(conn->pending_trans, state);
3230 SAFE_FREE(state->data);
3231 SAFE_FREE(state->param);
3232 TALLOC_FREE(state);
3233 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3234 END_PROFILE(SMBnttranss);
3235 return;
3236 }
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