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build: Remove references to charset modules - we no longer have these
[Samba/gebeck_regimport.git] / source3 / smbd / nttrans.c
blob997f72161aead411e723d28310c291d72cffc977
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
33 extern const struct generic_mapping file_generic_mapping;
34
35 static char *nttrans_realloc(char **ptr, size_t size)
36 {
37 if (ptr==NULL) {
38 smb_panic("nttrans_realloc() called with NULL ptr");
39 }
40
41 *ptr = (char *)SMB_REALLOC(*ptr, size);
42 if(*ptr == NULL) {
43 return NULL;
44 }
45 memset(*ptr,'\0',size);
46 return *ptr;
47 }
48
49 /****************************************************************************
50 Send the required number of replies back.
51 We assume all fields other than the data fields are
52 set correctly for the type of call.
53 HACK ! Always assumes smb_setup field is zero.
54 ****************************************************************************/
55
56 static void send_nt_replies(connection_struct *conn,
57 struct smb_request *req, NTSTATUS nt_error,
58 char *params, int paramsize,
59 char *pdata, int datasize)
60 {
61 int data_to_send = datasize;
62 int params_to_send = paramsize;
63 int useable_space;
64 char *pp = params;
65 char *pd = pdata;
66 int params_sent_thistime, data_sent_thistime, total_sent_thistime;
67 int alignment_offset = 1;
68 int data_alignment_offset = 0;
69 struct smbd_server_connection *sconn = req->sconn;
70 int max_send = sconn->smb1.sessions.max_send;
71
72 /*
73 * If there genuinely are no parameters or data to send just send
74 * the empty packet.
75 */
76
77 if(params_to_send == 0 && data_to_send == 0) {
78 reply_outbuf(req, 18, 0);
79 if (NT_STATUS_V(nt_error)) {
80 error_packet_set((char *)req->outbuf,
81 0, 0, nt_error,
82 __LINE__,__FILE__);
83 }
84 show_msg((char *)req->outbuf);
85 if (!srv_send_smb(sconn,
86 (char *)req->outbuf,
87 true, req->seqnum+1,
88 IS_CONN_ENCRYPTED(conn),
89 &req->pcd)) {
90 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
91 }
92 TALLOC_FREE(req->outbuf);
93 return;
94 }
95
96 /*
97 * When sending params and data ensure that both are nicely aligned.
98 * Only do this alignment when there is also data to send - else
99 * can cause NT redirector problems.
100 */
101
102 if (((params_to_send % 4) != 0) && (data_to_send != 0)) {
103 data_alignment_offset = 4 - (params_to_send % 4);
104 }
105
106 /*
107 * Space is bufsize minus Netbios over TCP header minus SMB header.
108 * The alignment_offset is to align the param bytes on a four byte
109 * boundary (2 bytes for data len, one byte pad).
110 * NT needs this to work correctly.
111 */
112
113 useable_space = max_send - (smb_size
114 + 2 * 18 /* wct */
115 + alignment_offset
116 + data_alignment_offset);
117
118 if (useable_space < 0) {
119 char *msg = talloc_asprintf(
120 talloc_tos(),
121 "send_nt_replies failed sanity useable_space = %d!!!",
122 useable_space);
123 DEBUG(0, ("%s\n", msg));
124 exit_server_cleanly(msg);
125 }
126
127 while (params_to_send || data_to_send) {
128
129 /*
130 * Calculate whether we will totally or partially fill this packet.
131 */
132
133 total_sent_thistime = params_to_send + data_to_send;
134
135 /*
136 * We can never send more than useable_space.
137 */
138
139 total_sent_thistime = MIN(total_sent_thistime, useable_space);
140
141 reply_outbuf(req, 18,
142 total_sent_thistime + alignment_offset
143 + data_alignment_offset);
144
145 /*
146 * Set total params and data to be sent.
147 */
148
149 SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
150 SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize);
151
152 /*
153 * Calculate how many parameters and data we can fit into
154 * this packet. Parameters get precedence.
155 */
156
157 params_sent_thistime = MIN(params_to_send,useable_space);
158 data_sent_thistime = useable_space - params_sent_thistime;
159 data_sent_thistime = MIN(data_sent_thistime,data_to_send);
160
161 SIVAL(req->outbuf, smb_ntr_ParameterCount,
162 params_sent_thistime);
163
164 if(params_sent_thistime == 0) {
165 SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
166 SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
167 } else {
168 /*
169 * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the
170 * parameter bytes, however the first 4 bytes of outbuf are
171 * the Netbios over TCP header. Thus use smb_base() to subtract
172 * them from the calculation.
173 */
174
175 SIVAL(req->outbuf,smb_ntr_ParameterOffset,
176 ((smb_buf(req->outbuf)+alignment_offset)
177 - smb_base(req->outbuf)));
178 /*
179 * Absolute displacement of param bytes sent in this packet.
180 */
181
182 SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
183 pp - params);
184 }
185
186 /*
187 * Deal with the data portion.
188 */
189
190 SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
191
192 if(data_sent_thistime == 0) {
193 SIVAL(req->outbuf,smb_ntr_DataOffset,0);
194 SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
195 } else {
196 /*
197 * The offset of the data bytes is the offset of the
198 * parameter bytes plus the number of parameters being sent this time.
199 */
200
201 SIVAL(req->outbuf, smb_ntr_DataOffset,
202 ((smb_buf(req->outbuf)+alignment_offset) -
203 smb_base(req->outbuf))
204 + params_sent_thistime + data_alignment_offset);
205 SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
206 }
207
208 /*
209 * Copy the param bytes into the packet.
210 */
211
212 if(params_sent_thistime) {
213 if (alignment_offset != 0) {
214 memset(smb_buf(req->outbuf), 0,
215 alignment_offset);
216 }
217 memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
218 params_sent_thistime);
219 }
220
221 /*
222 * Copy in the data bytes
223 */
224
225 if(data_sent_thistime) {
226 if (data_alignment_offset != 0) {
227 memset((smb_buf(req->outbuf)+alignment_offset+
228 params_sent_thistime), 0,
229 data_alignment_offset);
230 }
231 memcpy(smb_buf(req->outbuf)+alignment_offset
232 +params_sent_thistime+data_alignment_offset,
233 pd,data_sent_thistime);
234 }
235
236 DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
237 params_sent_thistime, data_sent_thistime, useable_space));
238 DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
239 params_to_send, data_to_send, paramsize, datasize));
240
241 if (NT_STATUS_V(nt_error)) {
242 error_packet_set((char *)req->outbuf,
243 0, 0, nt_error,
244 __LINE__,__FILE__);
245 }
246
247 /* Send the packet */
248 show_msg((char *)req->outbuf);
249 if (!srv_send_smb(sconn,
250 (char *)req->outbuf,
251 true, req->seqnum+1,
252 IS_CONN_ENCRYPTED(conn),
253 &req->pcd)) {
254 exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
255 }
256
257 TALLOC_FREE(req->outbuf);
258
259 pp += params_sent_thistime;
260 pd += data_sent_thistime;
261
262 params_to_send -= params_sent_thistime;
263 data_to_send -= data_sent_thistime;
264
265 /*
266 * Sanity check
267 */
268
269 if(params_to_send < 0 || data_to_send < 0) {
270 DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
271 params_to_send, data_to_send));
272 exit_server_cleanly("send_nt_replies: internal error");
273 }
274 }
275 }
276
277 /****************************************************************************
278 Reply to an NT create and X call on a pipe
279 ****************************************************************************/
280
281 static void nt_open_pipe(char *fname, connection_struct *conn,
282 struct smb_request *req, uint16_t *ppnum)
283 {
284 files_struct *fsp;
285 NTSTATUS status;
286
287 DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
288
289 /* Strip \\ off the name if present. */
290 while (fname[0] == '\\') {
291 fname++;
292 }
293
294 status = open_np_file(req, fname, &fsp);
295 if (!NT_STATUS_IS_OK(status)) {
296 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
297 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
298 ERRDOS, ERRbadpipe);
299 return;
300 }
301 reply_nterror(req, status);
302 return;
303 }
304
305 *ppnum = fsp->fnum;
306 return;
307 }
308
309 /****************************************************************************
310 Reply to an NT create and X call for pipes.
311 ****************************************************************************/
312
313 static void do_ntcreate_pipe_open(connection_struct *conn,
314 struct smb_request *req)
315 {
316 char *fname = NULL;
317 uint16_t pnum = FNUM_FIELD_INVALID;
318 char *p = NULL;
319 uint32 flags = IVAL(req->vwv+3, 1);
320 TALLOC_CTX *ctx = talloc_tos();
321
322 srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
323
324 if (!fname) {
325 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
326 ERRDOS, ERRbadpipe);
327 return;
328 }
329 nt_open_pipe(fname, conn, req, &pnum);
330
331 if (req->outbuf) {
332 /* error reply */
333 return;
334 }
335
336 /*
337 * Deal with pipe return.
338 */
339
340 if (flags & EXTENDED_RESPONSE_REQUIRED) {
341 /* This is very strange. We
342 * return 50 words, but only set
343 * the wcnt to 42 ? It's definitely
344 * what happens on the wire....
345 */
346 reply_outbuf(req, 50, 0);
347 SCVAL(req->outbuf,smb_wct,42);
348 } else {
349 reply_outbuf(req, 34, 0);
350 }
351
352 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
353 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
354
355 p = (char *)req->outbuf + smb_vwv2;
356 p++;
357 SSVAL(p,0,pnum);
358 p += 2;
359 SIVAL(p,0,FILE_WAS_OPENED);
360 p += 4;
361 p += 32;
362 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
363 p += 20;
364 /* File type. */
365 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
366 /* Device state. */
367 SSVAL(p,2, 0x5FF); /* ? */
368 p += 4;
369
370 if (flags & EXTENDED_RESPONSE_REQUIRED) {
371 p += 25;
372 SIVAL(p,0,FILE_GENERIC_ALL);
373 /*
374 * For pipes W2K3 seems to return
375 * 0x12019B next.
376 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
377 */
378 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
379 }
380
381 DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
382 }
383
384 struct case_semantics_state {
385 connection_struct *conn;
386 bool case_sensitive;
387 bool case_preserve;
388 bool short_case_preserve;
389 };
390
391 /****************************************************************************
392 Restore case semantics.
393 ****************************************************************************/
394
395 static int restore_case_semantics(struct case_semantics_state *state)
396 {
397 state->conn->case_sensitive = state->case_sensitive;
398 state->conn->case_preserve = state->case_preserve;
399 state->conn->short_case_preserve = state->short_case_preserve;
400 return 0;
401 }
402
403 /****************************************************************************
404 Save case semantics.
405 ****************************************************************************/
406
407 static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
408 connection_struct *conn)
409 {
410 struct case_semantics_state *result;
411
412 if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
413 return NULL;
414 }
415
416 result->conn = conn;
417 result->case_sensitive = conn->case_sensitive;
418 result->case_preserve = conn->case_preserve;
419 result->short_case_preserve = conn->short_case_preserve;
420
421 /* Set to POSIX. */
422 conn->case_sensitive = True;
423 conn->case_preserve = True;
424 conn->short_case_preserve = True;
425
426 talloc_set_destructor(result, restore_case_semantics);
427
428 return result;
429 }
430
431 /****************************************************************************
432 Reply to an NT create and X call.
433 ****************************************************************************/
434
435 void reply_ntcreate_and_X(struct smb_request *req)
436 {
437 connection_struct *conn = req->conn;
438 struct smb_filename *smb_fname = NULL;
439 char *fname = NULL;
440 uint32 flags;
441 uint32 access_mask;
442 uint32 file_attributes;
443 uint32 share_access;
444 uint32 create_disposition;
445 uint32 create_options;
446 uint16 root_dir_fid;
447 uint64_t allocation_size;
448 /* Breakout the oplock request bits so we can set the
449 reply bits separately. */
450 uint32 fattr=0;
451 off_t file_len = 0;
452 int info = 0;
453 files_struct *fsp = NULL;
454 char *p = NULL;
455 struct timespec create_timespec;
456 struct timespec c_timespec;
457 struct timespec a_timespec;
458 struct timespec m_timespec;
459 struct timespec write_time_ts;
460 NTSTATUS status;
461 int oplock_request;
462 uint8_t oplock_granted = NO_OPLOCK_RETURN;
463 struct case_semantics_state *case_state = NULL;
464 TALLOC_CTX *ctx = talloc_tos();
465
466 START_PROFILE(SMBntcreateX);
467
468 if (req->wct < 24) {
469 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
470 goto out;
471 }
472
473 flags = IVAL(req->vwv+3, 1);
474 access_mask = IVAL(req->vwv+7, 1);
475 file_attributes = IVAL(req->vwv+13, 1);
476 share_access = IVAL(req->vwv+15, 1);
477 create_disposition = IVAL(req->vwv+17, 1);
478 create_options = IVAL(req->vwv+19, 1);
479 root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
480
481 allocation_size = BVAL(req->vwv+9, 1);
482
483 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
484 STR_TERMINATE, &status);
485
486 if (!NT_STATUS_IS_OK(status)) {
487 reply_nterror(req, status);
488 goto out;
489 }
490
491 DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
492 "file_attributes = 0x%x, share_access = 0x%x, "
493 "create_disposition = 0x%x create_options = 0x%x "
494 "root_dir_fid = 0x%x, fname = %s\n",
495 (unsigned int)flags,
496 (unsigned int)access_mask,
497 (unsigned int)file_attributes,
498 (unsigned int)share_access,
499 (unsigned int)create_disposition,
500 (unsigned int)create_options,
501 (unsigned int)root_dir_fid,
502 fname));
503
504 /*
505 * we need to remove ignored bits when they come directly from the client
506 * because we reuse some of them for internal stuff
507 */
508 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
509
510 /*
511 * If it's an IPC, use the pipe handler.
512 */
513
514 if (IS_IPC(conn)) {
515 if (lp_nt_pipe_support()) {
516 do_ntcreate_pipe_open(conn, req);
517 goto out;
518 }
519 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
520 goto out;
521 }
522
523 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
524 if (oplock_request) {
525 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
526 ? BATCH_OPLOCK : 0;
527 }
528
529 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
530 case_state = set_posix_case_semantics(ctx, conn);
531 if (!case_state) {
532 reply_nterror(req, NT_STATUS_NO_MEMORY);
533 goto out;
534 }
535 }
536
537 status = filename_convert(ctx,
538 conn,
539 req->flags2 & FLAGS2_DFS_PATHNAMES,
540 fname,
541 0,
542 NULL,
543 &smb_fname);
544
545 TALLOC_FREE(case_state);
546
547 if (!NT_STATUS_IS_OK(status)) {
548 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
549 reply_botherror(req,
550 NT_STATUS_PATH_NOT_COVERED,
551 ERRSRV, ERRbadpath);
552 goto out;
553 }
554 reply_nterror(req, status);
555 goto out;
556 }
557
558 /*
559 * Bug #6898 - clients using Windows opens should
560 * never be able to set this attribute into the
561 * VFS.
562 */
563 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
564
565 status = SMB_VFS_CREATE_FILE(
566 conn, /* conn */
567 req, /* req */
568 root_dir_fid, /* root_dir_fid */
569 smb_fname, /* fname */
570 access_mask, /* access_mask */
571 share_access, /* share_access */
572 create_disposition, /* create_disposition*/
573 create_options, /* create_options */
574 file_attributes, /* file_attributes */
575 oplock_request, /* oplock_request */
576 allocation_size, /* allocation_size */
577 0, /* private_flags */
578 NULL, /* sd */
579 NULL, /* ea_list */
580 &fsp, /* result */
581 &info); /* pinfo */
582
583 if (!NT_STATUS_IS_OK(status)) {
584 if (open_was_deferred(req->sconn, req->mid)) {
585 /* We have re-scheduled this call, no error. */
586 goto out;
587 }
588 reply_openerror(req, status);
589 goto out;
590 }
591
592 /* Ensure we're pointing at the correct stat struct. */
593 TALLOC_FREE(smb_fname);
594 smb_fname = fsp->fsp_name;
595
596 /*
597 * If the caller set the extended oplock request bit
598 * and we granted one (by whatever means) - set the
599 * correct bit for extended oplock reply.
600 */
601
602 if (oplock_request &&
603 (lp_fake_oplocks(SNUM(conn))
604 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
605
606 /*
607 * Exclusive oplock granted
608 */
609
610 if (flags & REQUEST_BATCH_OPLOCK) {
611 oplock_granted = BATCH_OPLOCK_RETURN;
612 } else {
613 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
614 }
615 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
616 oplock_granted = LEVEL_II_OPLOCK_RETURN;
617 } else {
618 oplock_granted = NO_OPLOCK_RETURN;
619 }
620
621 file_len = smb_fname->st.st_ex_size;
622
623 if (flags & EXTENDED_RESPONSE_REQUIRED) {
624 /* This is very strange. We
625 * return 50 words, but only set
626 * the wcnt to 42 ? It's definitely
627 * what happens on the wire....
628 */
629 reply_outbuf(req, 50, 0);
630 SCVAL(req->outbuf,smb_wct,42);
631 } else {
632 reply_outbuf(req, 34, 0);
633 }
634
635 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
636 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
637
638 p = (char *)req->outbuf + smb_vwv2;
639
640 SCVAL(p, 0, oplock_granted);
641
642 p++;
643 SSVAL(p,0,fsp->fnum);
644 p += 2;
645 if ((create_disposition == FILE_SUPERSEDE)
646 && (info == FILE_WAS_OVERWRITTEN)) {
647 SIVAL(p,0,FILE_WAS_SUPERSEDED);
648 } else {
649 SIVAL(p,0,info);
650 }
651 p += 4;
652
653 fattr = dos_mode(conn, smb_fname);
654 if (fattr == 0) {
655 fattr = FILE_ATTRIBUTE_NORMAL;
656 }
657
658 /* Deal with other possible opens having a modified
659 write time. JRA. */
660 ZERO_STRUCT(write_time_ts);
661 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
662 if (!null_timespec(write_time_ts)) {
663 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
664 }
665
666 /* Create time. */
667 create_timespec = get_create_timespec(conn, fsp, smb_fname);
668 a_timespec = smb_fname->st.st_ex_atime;
669 m_timespec = smb_fname->st.st_ex_mtime;
670 c_timespec = get_change_timespec(conn, fsp, smb_fname);
671
672 if (lp_dos_filetime_resolution(SNUM(conn))) {
673 dos_filetime_timespec(&create_timespec);
674 dos_filetime_timespec(&a_timespec);
675 dos_filetime_timespec(&m_timespec);
676 dos_filetime_timespec(&c_timespec);
677 }
678
679 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
680 p += 8;
681 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
682 p += 8;
683 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
684 p += 8;
685 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
686 p += 8;
687 SIVAL(p,0,fattr); /* File Attributes. */
688 p += 4;
689 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&smb_fname->st));
690 p += 8;
691 SOFF_T(p,0,file_len);
692 p += 8;
693 if (flags & EXTENDED_RESPONSE_REQUIRED) {
694 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
695 size_t num_names = 0;
696 unsigned int num_streams = 0;
697 struct stream_struct *streams = NULL;
698
699 /* Do we have any EA's ? */
700 status = get_ea_names_from_file(ctx, conn, fsp,
701 smb_fname->base_name, NULL, &num_names);
702 if (NT_STATUS_IS_OK(status) && num_names) {
703 file_status &= ~NO_EAS;
704 }
705 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
706 &num_streams, &streams);
707 /* There is always one stream, ::$DATA. */
708 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
709 file_status &= ~NO_SUBSTREAMS;
710 }
711 TALLOC_FREE(streams);
712 SSVAL(p,2,file_status);
713 }
714 p += 4;
715 SCVAL(p,0,fsp->is_directory ? 1 : 0);
716
717 if (flags & EXTENDED_RESPONSE_REQUIRED) {
718 uint32 perms = 0;
719 p += 25;
720 if (fsp->is_directory ||
721 can_write_to_file(conn, smb_fname)) {
722 perms = FILE_GENERIC_ALL;
723 } else {
724 perms = FILE_GENERIC_READ|FILE_EXECUTE;
725 }
726 SIVAL(p,0,perms);
727 }
728
729 DEBUG(5,("reply_ntcreate_and_X: %s, open name = %s\n",
730 fsp_fnum_dbg(fsp), smb_fname_str_dbg(smb_fname)));
731
732 out:
733 END_PROFILE(SMBntcreateX);
734 return;
735 }
736
737 /****************************************************************************
738 Reply to a NT_TRANSACT_CREATE call to open a pipe.
739 ****************************************************************************/
740
741 static void do_nt_transact_create_pipe(connection_struct *conn,
742 struct smb_request *req,
743 uint16 **ppsetup, uint32 setup_count,
744 char **ppparams, uint32 parameter_count,
745 char **ppdata, uint32 data_count)
746 {
747 char *fname = NULL;
748 char *params = *ppparams;
749 uint16_t pnum = FNUM_FIELD_INVALID;
750 char *p = NULL;
751 NTSTATUS status;
752 size_t param_len;
753 uint32 flags;
754 TALLOC_CTX *ctx = talloc_tos();
755
756 /*
757 * Ensure minimum number of parameters sent.
758 */
759
760 if(parameter_count < 54) {
761 DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
762 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
763 return;
764 }
765
766 flags = IVAL(params,0);
767
768 srvstr_get_path(ctx, params, req->flags2, &fname, params+53,
769 parameter_count-53, STR_TERMINATE,
770 &status);
771 if (!NT_STATUS_IS_OK(status)) {
772 reply_nterror(req, status);
773 return;
774 }
775
776 nt_open_pipe(fname, conn, req, &pnum);
777
778 if (req->outbuf) {
779 /* Error return */
780 return;
781 }
782
783 /* Realloc the size of parameters and data we will return */
784 if (flags & EXTENDED_RESPONSE_REQUIRED) {
785 /* Extended response is 32 more byyes. */
786 param_len = 101;
787 } else {
788 param_len = 69;
789 }
790 params = nttrans_realloc(ppparams, param_len);
791 if(params == NULL) {
792 reply_nterror(req, NT_STATUS_NO_MEMORY);
793 return;
794 }
795
796 p = params;
797 SCVAL(p,0,NO_OPLOCK_RETURN);
798
799 p += 2;
800 SSVAL(p,0,pnum);
801 p += 2;
802 SIVAL(p,0,FILE_WAS_OPENED);
803 p += 8;
804
805 p += 32;
806 SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
807 p += 20;
808 /* File type. */
809 SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
810 /* Device state. */
811 SSVAL(p,2, 0x5FF); /* ? */
812 p += 4;
813
814 if (flags & EXTENDED_RESPONSE_REQUIRED) {
815 p += 25;
816 SIVAL(p,0,FILE_GENERIC_ALL);
817 /*
818 * For pipes W2K3 seems to return
819 * 0x12019B next.
820 * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
821 */
822 SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
823 }
824
825 DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
826
827 /* Send the required number of replies */
828 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
829
830 return;
831 }
832
833 /*********************************************************************
834 Windows seems to do canonicalization of inheritance bits. Do the
835 same.
836 *********************************************************************/
837
838 static void canonicalize_inheritance_bits(struct security_descriptor *psd)
839 {
840 bool set_auto_inherited = false;
841
842 /*
843 * We need to filter out the
844 * SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ
845 * bits. If both are set we store SEC_DESC_DACL_AUTO_INHERITED
846 * as this alters whether SEC_ACE_FLAG_INHERITED_ACE is set
847 * when an ACE is inherited. Otherwise we zero these bits out.
848 * See:
849 *
850 * http://social.msdn.microsoft.com/Forums/eu/os_fileservices/thread/11f77b68-731e-407d-b1b3-064750716531
851 *
852 * for details.
853 */
854
855 if ((psd->type & (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ))
856 == (SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ)) {
857 set_auto_inherited = true;
858 }
859
860 psd->type &= ~(SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_AUTO_INHERIT_REQ);
861 if (set_auto_inherited) {
862 psd->type |= SEC_DESC_DACL_AUTO_INHERITED;
863 }
864 }
865
866 /****************************************************************************
867 Internal fn to set security descriptors.
868 ****************************************************************************/
869
870 NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd,
871 uint32_t security_info_sent)
872 {
873 NTSTATUS status;
874
875 if (!CAN_WRITE(fsp->conn)) {
876 return NT_STATUS_ACCESS_DENIED;
877 }
878
879 if (!lp_nt_acl_support(SNUM(fsp->conn))) {
880 return NT_STATUS_OK;
881 }
882
883 if (psd->owner_sid == NULL) {
884 security_info_sent &= ~SECINFO_OWNER;
885 }
886 if (psd->group_sid == NULL) {
887 security_info_sent &= ~SECINFO_GROUP;
888 }
889
890 /* Ensure we have at least one thing set. */
891 if ((security_info_sent & (SECINFO_OWNER|SECINFO_GROUP|SECINFO_DACL|SECINFO_SACL)) == 0) {
892 if (security_info_sent & SECINFO_LABEL) {
893 /* Only consider SECINFO_LABEL if no other
894 bits are set. Just like W2K3 we don't
895 store this. */
896 return NT_STATUS_OK;
897 }
898 return NT_STATUS_INVALID_PARAMETER;
899 }
900
901 /* Ensure we have the rights to do this. */
902 if (security_info_sent & SECINFO_OWNER) {
903 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
904 return NT_STATUS_ACCESS_DENIED;
905 }
906 }
907
908 if (security_info_sent & SECINFO_GROUP) {
909 if (!(fsp->access_mask & SEC_STD_WRITE_OWNER)) {
910 return NT_STATUS_ACCESS_DENIED;
911 }
912 }
913
914 if (security_info_sent & SECINFO_DACL) {
915 if (!(fsp->access_mask & SEC_STD_WRITE_DAC)) {
916 return NT_STATUS_ACCESS_DENIED;
917 }
918 /* Convert all the generic bits. */
919 if (psd->dacl) {
920 security_acl_map_generic(psd->dacl, &file_generic_mapping);
921 }
922 }
923
924 if (security_info_sent & SECINFO_SACL) {
925 if (!(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
926 return NT_STATUS_ACCESS_DENIED;
927 }
928 /* Convert all the generic bits. */
929 if (psd->sacl) {
930 security_acl_map_generic(psd->sacl, &file_generic_mapping);
931 }
932 }
933
934 canonicalize_inheritance_bits(psd);
935
936 if (DEBUGLEVEL >= 10) {
937 DEBUG(10,("set_sd for file %s\n", fsp_str_dbg(fsp)));
938 NDR_PRINT_DEBUG(security_descriptor, psd);
939 }
940
941 status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
942
943 TALLOC_FREE(psd);
944
945 return status;
946 }
947
948 /****************************************************************************
949 Internal fn to set security descriptors from a data blob.
950 ****************************************************************************/
951
952 NTSTATUS set_sd_blob(files_struct *fsp, uint8_t *data, uint32_t sd_len,
953 uint32_t security_info_sent)
954 {
955 struct security_descriptor *psd = NULL;
956 NTSTATUS status;
957
958 if (sd_len == 0) {
959 return NT_STATUS_INVALID_PARAMETER;
960 }
961
962 status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
963
964 if (!NT_STATUS_IS_OK(status)) {
965 return status;
966 }
967
968 return set_sd(fsp, psd, security_info_sent);
969 }
970
971 /****************************************************************************
972 Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
973 ****************************************************************************/
974
975 struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
976 {
977 struct ea_list *ea_list_head = NULL;
978 size_t offset = 0;
979
980 if (data_size < 4) {
981 return NULL;
982 }
983
984 while (offset + 4 <= data_size) {
985 size_t next_offset = IVAL(pdata,offset);
986 struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
987
988 if (!eal) {
989 return NULL;
990 }
991
992 DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
993 if (next_offset == 0) {
994 break;
995 }
996 offset += next_offset;
997 }
998
999 return ea_list_head;
1000 }
1001
1002 /****************************************************************************
1003 Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
1004 ****************************************************************************/
1005
1006 static void call_nt_transact_create(connection_struct *conn,
1007 struct smb_request *req,
1008 uint16 **ppsetup, uint32 setup_count,
1009 char **ppparams, uint32 parameter_count,
1010 char **ppdata, uint32 data_count,
1011 uint32 max_data_count)
1012 {
1013 struct smb_filename *smb_fname = NULL;
1014 char *fname = NULL;
1015 char *params = *ppparams;
1016 char *data = *ppdata;
1017 /* Breakout the oplock request bits so we can set the reply bits separately. */
1018 uint32 fattr=0;
1019 off_t file_len = 0;
1020 int info = 0;
1021 files_struct *fsp = NULL;
1022 char *p = NULL;
1023 uint32 flags;
1024 uint32 access_mask;
1025 uint32 file_attributes;
1026 uint32 share_access;
1027 uint32 create_disposition;
1028 uint32 create_options;
1029 uint32 sd_len;
1030 struct security_descriptor *sd = NULL;
1031 uint32 ea_len;
1032 uint16 root_dir_fid;
1033 struct timespec create_timespec;
1034 struct timespec c_timespec;
1035 struct timespec a_timespec;
1036 struct timespec m_timespec;
1037 struct timespec write_time_ts;
1038 struct ea_list *ea_list = NULL;
1039 NTSTATUS status;
1040 size_t param_len;
1041 uint64_t allocation_size;
1042 int oplock_request;
1043 uint8_t oplock_granted;
1044 struct case_semantics_state *case_state = NULL;
1045 TALLOC_CTX *ctx = talloc_tos();
1046
1047 DEBUG(5,("call_nt_transact_create\n"));
1048
1049 /*
1050 * If it's an IPC, use the pipe handler.
1051 */
1052
1053 if (IS_IPC(conn)) {
1054 if (lp_nt_pipe_support()) {
1055 do_nt_transact_create_pipe(
1056 conn, req,
1057 ppsetup, setup_count,
1058 ppparams, parameter_count,
1059 ppdata, data_count);
1060 goto out;
1061 }
1062 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1063 goto out;
1064 }
1065
1066 /*
1067 * Ensure minimum number of parameters sent.
1068 */
1069
1070 if(parameter_count < 54) {
1071 DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
1072 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1073 goto out;
1074 }
1075
1076 flags = IVAL(params,0);
1077 access_mask = IVAL(params,8);
1078 file_attributes = IVAL(params,20);
1079 share_access = IVAL(params,24);
1080 create_disposition = IVAL(params,28);
1081 create_options = IVAL(params,32);
1082 sd_len = IVAL(params,36);
1083 ea_len = IVAL(params,40);
1084 root_dir_fid = (uint16)IVAL(params,4);
1085 allocation_size = BVAL(params,12);
1086
1087 /*
1088 * we need to remove ignored bits when they come directly from the client
1089 * because we reuse some of them for internal stuff
1090 */
1091 create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
1092
1093 /* Ensure the data_len is correct for the sd and ea values given. */
1094 if ((ea_len + sd_len > data_count)
1095 || (ea_len > data_count) || (sd_len > data_count)
1096 || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
1097 DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = "
1098 "%u, data_count = %u\n", (unsigned int)ea_len,
1099 (unsigned int)sd_len, (unsigned int)data_count));
1100 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1101 goto out;
1102 }
1103
1104 if (sd_len) {
1105 DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
1106 sd_len));
1107
1108 status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
1109 &sd);
1110 if (!NT_STATUS_IS_OK(status)) {
1111 DEBUG(10, ("call_nt_transact_create: "
1112 "unmarshall_sec_desc failed: %s\n",
1113 nt_errstr(status)));
1114 reply_nterror(req, status);
1115 goto out;
1116 }
1117 }
1118
1119 if (ea_len) {
1120 if (!lp_ea_support(SNUM(conn))) {
1121 DEBUG(10, ("call_nt_transact_create - ea_len = %u but "
1122 "EA's not supported.\n",
1123 (unsigned int)ea_len));
1124 reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
1125 goto out;
1126 }
1127
1128 if (ea_len < 10) {
1129 DEBUG(10,("call_nt_transact_create - ea_len = %u - "
1130 "too small (should be more than 10)\n",
1131 (unsigned int)ea_len ));
1132 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1133 goto out;
1134 }
1135
1136 /* We have already checked that ea_len <= data_count here. */
1137 ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
1138 ea_len);
1139 if (ea_list == NULL) {
1140 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1141 goto out;
1142 }
1143 }
1144
1145 srvstr_get_path(ctx, params, req->flags2, &fname,
1146 params+53, parameter_count-53,
1147 STR_TERMINATE, &status);
1148 if (!NT_STATUS_IS_OK(status)) {
1149 reply_nterror(req, status);
1150 goto out;
1151 }
1152
1153 if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
1154 case_state = set_posix_case_semantics(ctx, conn);
1155 if (!case_state) {
1156 reply_nterror(req, NT_STATUS_NO_MEMORY);
1157 goto out;
1158 }
1159 }
1160
1161 status = filename_convert(ctx,
1162 conn,
1163 req->flags2 & FLAGS2_DFS_PATHNAMES,
1164 fname,
1165 0,
1166 NULL,
1167 &smb_fname);
1168
1169 TALLOC_FREE(case_state);
1170
1171 if (!NT_STATUS_IS_OK(status)) {
1172 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1173 reply_botherror(req,
1174 NT_STATUS_PATH_NOT_COVERED,
1175 ERRSRV, ERRbadpath);
1176 goto out;
1177 }
1178 reply_nterror(req, status);
1179 goto out;
1180 }
1181
1182 oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
1183 if (oplock_request) {
1184 oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
1185 ? BATCH_OPLOCK : 0;
1186 }
1187
1188 /*
1189 * Bug #6898 - clients using Windows opens should
1190 * never be able to set this attribute into the
1191 * VFS.
1192 */
1193 file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
1194
1195 status = SMB_VFS_CREATE_FILE(
1196 conn, /* conn */
1197 req, /* req */
1198 root_dir_fid, /* root_dir_fid */
1199 smb_fname, /* fname */
1200 access_mask, /* access_mask */
1201 share_access, /* share_access */
1202 create_disposition, /* create_disposition*/
1203 create_options, /* create_options */
1204 file_attributes, /* file_attributes */
1205 oplock_request, /* oplock_request */
1206 allocation_size, /* allocation_size */
1207 0, /* private_flags */
1208 sd, /* sd */
1209 ea_list, /* ea_list */
1210 &fsp, /* result */
1211 &info); /* pinfo */
1212
1213 if(!NT_STATUS_IS_OK(status)) {
1214 if (open_was_deferred(req->sconn, req->mid)) {
1215 /* We have re-scheduled this call, no error. */
1216 return;
1217 }
1218 reply_openerror(req, status);
1219 goto out;
1220 }
1221
1222 /* Ensure we're pointing at the correct stat struct. */
1223 TALLOC_FREE(smb_fname);
1224 smb_fname = fsp->fsp_name;
1225
1226 /*
1227 * If the caller set the extended oplock request bit
1228 * and we granted one (by whatever means) - set the
1229 * correct bit for extended oplock reply.
1230 */
1231
1232 if (oplock_request &&
1233 (lp_fake_oplocks(SNUM(conn))
1234 || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
1235
1236 /*
1237 * Exclusive oplock granted
1238 */
1239
1240 if (flags & REQUEST_BATCH_OPLOCK) {
1241 oplock_granted = BATCH_OPLOCK_RETURN;
1242 } else {
1243 oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
1244 }
1245 } else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
1246 oplock_granted = LEVEL_II_OPLOCK_RETURN;
1247 } else {
1248 oplock_granted = NO_OPLOCK_RETURN;
1249 }
1250
1251 file_len = smb_fname->st.st_ex_size;
1252
1253 /* Realloc the size of parameters and data we will return */
1254 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1255 /* Extended response is 32 more byyes. */
1256 param_len = 101;
1257 } else {
1258 param_len = 69;
1259 }
1260 params = nttrans_realloc(ppparams, param_len);
1261 if(params == NULL) {
1262 reply_nterror(req, NT_STATUS_NO_MEMORY);
1263 goto out;
1264 }
1265
1266 p = params;
1267 SCVAL(p, 0, oplock_granted);
1268
1269 p += 2;
1270 SSVAL(p,0,fsp->fnum);
1271 p += 2;
1272 if ((create_disposition == FILE_SUPERSEDE)
1273 && (info == FILE_WAS_OVERWRITTEN)) {
1274 SIVAL(p,0,FILE_WAS_SUPERSEDED);
1275 } else {
1276 SIVAL(p,0,info);
1277 }
1278 p += 8;
1279
1280 fattr = dos_mode(conn, smb_fname);
1281 if (fattr == 0) {
1282 fattr = FILE_ATTRIBUTE_NORMAL;
1283 }
1284
1285 /* Deal with other possible opens having a modified
1286 write time. JRA. */
1287 ZERO_STRUCT(write_time_ts);
1288 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1289 if (!null_timespec(write_time_ts)) {
1290 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1291 }
1292
1293 /* Create time. */
1294 create_timespec = get_create_timespec(conn, fsp, smb_fname);
1295 a_timespec = smb_fname->st.st_ex_atime;
1296 m_timespec = smb_fname->st.st_ex_mtime;
1297 c_timespec = get_change_timespec(conn, fsp, smb_fname);
1298
1299 if (lp_dos_filetime_resolution(SNUM(conn))) {
1300 dos_filetime_timespec(&create_timespec);
1301 dos_filetime_timespec(&a_timespec);
1302 dos_filetime_timespec(&m_timespec);
1303 dos_filetime_timespec(&c_timespec);
1304 }
1305
1306 put_long_date_timespec(conn->ts_res, p, create_timespec); /* create time. */
1307 p += 8;
1308 put_long_date_timespec(conn->ts_res, p, a_timespec); /* access time */
1309 p += 8;
1310 put_long_date_timespec(conn->ts_res, p, m_timespec); /* write time */
1311 p += 8;
1312 put_long_date_timespec(conn->ts_res, p, c_timespec); /* change time */
1313 p += 8;
1314 SIVAL(p,0,fattr); /* File Attributes. */
1315 p += 4;
1316 SOFF_T(p, 0, SMB_VFS_GET_ALLOC_SIZE(conn, fsp, &smb_fname->st));
1317 p += 8;
1318 SOFF_T(p,0,file_len);
1319 p += 8;
1320 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1321 uint16_t file_status = (NO_EAS|NO_SUBSTREAMS|NO_REPARSETAG);
1322 size_t num_names = 0;
1323 unsigned int num_streams = 0;
1324 struct stream_struct *streams = NULL;
1325
1326 /* Do we have any EA's ? */
1327 status = get_ea_names_from_file(ctx, conn, fsp,
1328 smb_fname->base_name, NULL, &num_names);
1329 if (NT_STATUS_IS_OK(status) && num_names) {
1330 file_status &= ~NO_EAS;
1331 }
1332 status = vfs_streaminfo(conn, NULL, smb_fname->base_name, ctx,
1333 &num_streams, &streams);
1334 /* There is always one stream, ::$DATA. */
1335 if (NT_STATUS_IS_OK(status) && num_streams > 1) {
1336 file_status &= ~NO_SUBSTREAMS;
1337 }
1338 TALLOC_FREE(streams);
1339 SSVAL(p,2,file_status);
1340 }
1341 p += 4;
1342 SCVAL(p,0,fsp->is_directory ? 1 : 0);
1343
1344 if (flags & EXTENDED_RESPONSE_REQUIRED) {
1345 uint32 perms = 0;
1346 p += 25;
1347 if (fsp->is_directory ||
1348 can_write_to_file(conn, smb_fname)) {
1349 perms = FILE_GENERIC_ALL;
1350 } else {
1351 perms = FILE_GENERIC_READ|FILE_EXECUTE;
1352 }
1353 SIVAL(p,0,perms);
1354 }
1355
1356 DEBUG(5,("call_nt_transact_create: open name = %s\n",
1357 smb_fname_str_dbg(smb_fname)));
1358
1359 /* Send the required number of replies */
1360 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
1361 out:
1362 return;
1363 }
1364
1365 /****************************************************************************
1366 Reply to a NT CANCEL request.
1367 conn POINTER CAN BE NULL HERE !
1368 ****************************************************************************/
1369
1370 void reply_ntcancel(struct smb_request *req)
1371 {
1372 /*
1373 * Go through and cancel any pending change notifies.
1374 */
1375
1376 START_PROFILE(SMBntcancel);
1377 srv_cancel_sign_response(req->sconn);
1378 remove_pending_change_notify_requests_by_mid(req->sconn, req->mid);
1379 remove_pending_lock_requests_by_mid_smb1(req->sconn, req->mid);
1380
1381 DEBUG(3,("reply_ntcancel: cancel called on mid = %llu.\n",
1382 (unsigned long long)req->mid));
1383
1384 END_PROFILE(SMBntcancel);
1385 return;
1386 }
1387
1388 /****************************************************************************
1389 Copy a file.
1390 ****************************************************************************/
1391
1392 static NTSTATUS copy_internals(TALLOC_CTX *ctx,
1393 connection_struct *conn,
1394 struct smb_request *req,
1395 struct smb_filename *smb_fname_src,
1396 struct smb_filename *smb_fname_dst,
1397 uint32 attrs)
1398 {
1399 files_struct *fsp1,*fsp2;
1400 uint32 fattr;
1401 int info;
1402 off_t ret=-1;
1403 NTSTATUS status = NT_STATUS_OK;
1404 char *parent;
1405
1406 if (!CAN_WRITE(conn)) {
1407 status = NT_STATUS_MEDIA_WRITE_PROTECTED;
1408 goto out;
1409 }
1410
1411 /* Source must already exist. */
1412 if (!VALID_STAT(smb_fname_src->st)) {
1413 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1414 goto out;
1415 }
1416
1417 /* Ensure attributes match. */
1418 fattr = dos_mode(conn, smb_fname_src);
1419 if ((fattr & ~attrs) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
1420 status = NT_STATUS_NO_SUCH_FILE;
1421 goto out;
1422 }
1423
1424 /* Disallow if dst file already exists. */
1425 if (VALID_STAT(smb_fname_dst->st)) {
1426 status = NT_STATUS_OBJECT_NAME_COLLISION;
1427 goto out;
1428 }
1429
1430 /* No links from a directory. */
1431 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
1432 status = NT_STATUS_FILE_IS_A_DIRECTORY;
1433 goto out;
1434 }
1435
1436 DEBUG(10,("copy_internals: doing file copy %s to %s\n",
1437 smb_fname_str_dbg(smb_fname_src),
1438 smb_fname_str_dbg(smb_fname_dst)));
1439
1440 status = SMB_VFS_CREATE_FILE(
1441 conn, /* conn */
1442 req, /* req */
1443 0, /* root_dir_fid */
1444 smb_fname_src, /* fname */
1445 FILE_READ_DATA|FILE_READ_ATTRIBUTES|
1446 FILE_READ_EA, /* access_mask */
1447 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1448 FILE_SHARE_DELETE),
1449 FILE_OPEN, /* create_disposition*/
1450 0, /* create_options */
1451 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1452 NO_OPLOCK, /* oplock_request */
1453 0, /* allocation_size */
1454 0, /* private_flags */
1455 NULL, /* sd */
1456 NULL, /* ea_list */
1457 &fsp1, /* result */
1458 &info); /* pinfo */
1459
1460 if (!NT_STATUS_IS_OK(status)) {
1461 goto out;
1462 }
1463
1464 status = SMB_VFS_CREATE_FILE(
1465 conn, /* conn */
1466 req, /* req */
1467 0, /* root_dir_fid */
1468 smb_fname_dst, /* fname */
1469 FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|
1470 FILE_WRITE_EA, /* access_mask */
1471 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
1472 FILE_SHARE_DELETE),
1473 FILE_CREATE, /* create_disposition*/
1474 0, /* create_options */
1475 fattr, /* file_attributes */
1476 NO_OPLOCK, /* oplock_request */
1477 0, /* allocation_size */
1478 0, /* private_flags */
1479 NULL, /* sd */
1480 NULL, /* ea_list */
1481 &fsp2, /* result */
1482 &info); /* pinfo */
1483
1484 if (!NT_STATUS_IS_OK(status)) {
1485 close_file(NULL, fsp1, ERROR_CLOSE);
1486 goto out;
1487 }
1488
1489 if (smb_fname_src->st.st_ex_size) {
1490 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
1491 }
1492
1493 /*
1494 * As we are opening fsp1 read-only we only expect
1495 * an error on close on fsp2 if we are out of space.
1496 * Thus we don't look at the error return from the
1497 * close of fsp1.
1498 */
1499 close_file(NULL, fsp1, NORMAL_CLOSE);
1500
1501 /* Ensure the modtime is set correctly on the destination file. */
1502 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
1503
1504 status = close_file(NULL, fsp2, NORMAL_CLOSE);
1505
1506 /* Grrr. We have to do this as open_file_ntcreate adds FILE_ATTRIBUTE_ARCHIVE when it
1507 creates the file. This isn't the correct thing to do in the copy
1508 case. JRA */
1509 if (!parent_dirname(talloc_tos(), smb_fname_dst->base_name, &parent,
1510 NULL)) {
1511 status = NT_STATUS_NO_MEMORY;
1512 goto out;
1513 }
1514 file_set_dosmode(conn, smb_fname_dst, fattr, parent, false);
1515 TALLOC_FREE(parent);
1516
1517 if (ret < (off_t)smb_fname_src->st.st_ex_size) {
1518 status = NT_STATUS_DISK_FULL;
1519 goto out;
1520 }
1521 out:
1522 if (!NT_STATUS_IS_OK(status)) {
1523 DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
1524 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
1525 smb_fname_str_dbg(smb_fname_dst)));
1526 }
1527
1528 return status;
1529 }
1530
1531 /****************************************************************************
1532 Reply to a NT rename request.
1533 ****************************************************************************/
1534
1535 void reply_ntrename(struct smb_request *req)
1536 {
1537 connection_struct *conn = req->conn;
1538 struct smb_filename *smb_fname_old = NULL;
1539 struct smb_filename *smb_fname_new = NULL;
1540 char *oldname = NULL;
1541 char *newname = NULL;
1542 const char *p;
1543 NTSTATUS status;
1544 bool src_has_wcard = False;
1545 bool dest_has_wcard = False;
1546 uint32 attrs;
1547 uint32_t ucf_flags_src = 0;
1548 uint32_t ucf_flags_dst = 0;
1549 uint16 rename_type;
1550 TALLOC_CTX *ctx = talloc_tos();
1551 bool stream_rename = false;
1552
1553 START_PROFILE(SMBntrename);
1554
1555 if (req->wct < 4) {
1556 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1557 goto out;
1558 }
1559
1560 attrs = SVAL(req->vwv+0, 0);
1561 rename_type = SVAL(req->vwv+1, 0);
1562
1563 p = (const char *)req->buf + 1;
1564 p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
1565 &status, &src_has_wcard);
1566 if (!NT_STATUS_IS_OK(status)) {
1567 reply_nterror(req, status);
1568 goto out;
1569 }
1570
1571 if (ms_has_wild(oldname)) {
1572 reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
1573 goto out;
1574 }
1575
1576 p++;
1577 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
1578 &status, &dest_has_wcard);
1579 if (!NT_STATUS_IS_OK(status)) {
1580 reply_nterror(req, status);
1581 goto out;
1582 }
1583
1584 if (!lp_posix_pathnames()) {
1585 /* The newname must begin with a ':' if the
1586 oldname contains a ':'. */
1587 if (strchr_m(oldname, ':')) {
1588 if (newname[0] != ':') {
1589 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1590 goto out;
1591 }
1592 stream_rename = true;
1593 }
1594 }
1595
1596 /*
1597 * If this is a rename operation, allow wildcards and save the
1598 * destination's last component.
1599 */
1600 if (rename_type == RENAME_FLAG_RENAME) {
1601 ucf_flags_src = UCF_COND_ALLOW_WCARD_LCOMP;
1602 ucf_flags_dst = UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP;
1603 }
1604
1605 /* rename_internals() calls unix_convert(), so don't call it here. */
1606 status = filename_convert(ctx, conn,
1607 req->flags2 & FLAGS2_DFS_PATHNAMES,
1608 oldname,
1609 ucf_flags_src,
1610 NULL,
1611 &smb_fname_old);
1612 if (!NT_STATUS_IS_OK(status)) {
1613 if (NT_STATUS_EQUAL(status,
1614 NT_STATUS_PATH_NOT_COVERED)) {
1615 reply_botherror(req,
1616 NT_STATUS_PATH_NOT_COVERED,
1617 ERRSRV, ERRbadpath);
1618 goto out;
1619 }
1620 reply_nterror(req, status);
1621 goto out;
1622 }
1623
1624 status = filename_convert(ctx, conn,
1625 req->flags2 & FLAGS2_DFS_PATHNAMES,
1626 newname,
1627 ucf_flags_dst,
1628 &dest_has_wcard,
1629 &smb_fname_new);
1630 if (!NT_STATUS_IS_OK(status)) {
1631 if (NT_STATUS_EQUAL(status,
1632 NT_STATUS_PATH_NOT_COVERED)) {
1633 reply_botherror(req,
1634 NT_STATUS_PATH_NOT_COVERED,
1635 ERRSRV, ERRbadpath);
1636 goto out;
1637 }
1638 reply_nterror(req, status);
1639 goto out;
1640 }
1641
1642 if (stream_rename) {
1643 /* smb_fname_new must be the same as smb_fname_old. */
1644 TALLOC_FREE(smb_fname_new->base_name);
1645 smb_fname_new->base_name = talloc_strdup(smb_fname_new,
1646 smb_fname_old->base_name);
1647 if (!smb_fname_new->base_name) {
1648 reply_nterror(req, NT_STATUS_NO_MEMORY);
1649 goto out;
1650 }
1651 }
1652
1653 DEBUG(3,("reply_ntrename: %s -> %s\n",
1654 smb_fname_str_dbg(smb_fname_old),
1655 smb_fname_str_dbg(smb_fname_new)));
1656
1657 switch(rename_type) {
1658 case RENAME_FLAG_RENAME:
1659 status = rename_internals(ctx, conn, req,
1660 smb_fname_old, smb_fname_new,
1661 attrs, False, src_has_wcard,
1662 dest_has_wcard,
1663 DELETE_ACCESS);
1664 break;
1665 case RENAME_FLAG_HARD_LINK:
1666 if (src_has_wcard || dest_has_wcard) {
1667 /* No wildcards. */
1668 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1669 } else {
1670 status = hardlink_internals(ctx, conn,
1671 req,
1672 false,
1673 smb_fname_old,
1674 smb_fname_new);
1675 }
1676 break;
1677 case RENAME_FLAG_COPY:
1678 if (src_has_wcard || dest_has_wcard) {
1679 /* No wildcards. */
1680 status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
1681 } else {
1682 status = copy_internals(ctx, conn, req,
1683 smb_fname_old,
1684 smb_fname_new,
1685 attrs);
1686 }
1687 break;
1688 case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
1689 status = NT_STATUS_INVALID_PARAMETER;
1690 break;
1691 default:
1692 status = NT_STATUS_ACCESS_DENIED; /* Default error. */
1693 break;
1694 }
1695
1696 if (!NT_STATUS_IS_OK(status)) {
1697 if (open_was_deferred(req->sconn, req->mid)) {
1698 /* We have re-scheduled this call. */
1699 goto out;
1700 }
1701
1702 reply_nterror(req, status);
1703 goto out;
1704 }
1705
1706 reply_outbuf(req, 0, 0);
1707 out:
1708 END_PROFILE(SMBntrename);
1709 return;
1710 }
1711
1712 /****************************************************************************
1713 Reply to a notify change - queue the request and
1714 don't allow a directory to be opened.
1715 ****************************************************************************/
1716
1717 static void smbd_smb1_notify_reply(struct smb_request *req,
1718 NTSTATUS error_code,
1719 uint8_t *buf, size_t len)
1720 {
1721 send_nt_replies(req->conn, req, error_code, (char *)buf, len, NULL, 0);
1722 }
1723
1724 static void call_nt_transact_notify_change(connection_struct *conn,
1725 struct smb_request *req,
1726 uint16 **ppsetup,
1727 uint32 setup_count,
1728 char **ppparams,
1729 uint32 parameter_count,
1730 char **ppdata, uint32 data_count,
1731 uint32 max_data_count,
1732 uint32 max_param_count)
1733 {
1734 uint16 *setup = *ppsetup;
1735 files_struct *fsp;
1736 uint32 filter;
1737 NTSTATUS status;
1738 bool recursive;
1739
1740 if(setup_count < 6) {
1741 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1742 return;
1743 }
1744
1745 fsp = file_fsp(req, SVAL(setup,4));
1746 filter = IVAL(setup, 0);
1747 recursive = (SVAL(setup, 6) != 0) ? True : False;
1748
1749 DEBUG(3,("call_nt_transact_notify_change\n"));
1750
1751 if(!fsp) {
1752 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1753 return;
1754 }
1755
1756 {
1757 char *filter_string;
1758
1759 if (!(filter_string = notify_filter_string(NULL, filter))) {
1760 reply_nterror(req,NT_STATUS_NO_MEMORY);
1761 return;
1762 }
1763
1764 DEBUG(3,("call_nt_transact_notify_change: notify change "
1765 "called on %s, filter = %s, recursive = %d\n",
1766 fsp_str_dbg(fsp), filter_string, recursive));
1767
1768 TALLOC_FREE(filter_string);
1769 }
1770
1771 if((!fsp->is_directory) || (conn != fsp->conn)) {
1772 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1773 return;
1774 }
1775
1776 if (fsp->notify == NULL) {
1777
1778 status = change_notify_create(fsp, filter, recursive);
1779
1780 if (!NT_STATUS_IS_OK(status)) {
1781 DEBUG(10, ("change_notify_create returned %s\n",
1782 nt_errstr(status)));
1783 reply_nterror(req, status);
1784 return;
1785 }
1786 }
1787
1788 if (change_notify_fsp_has_changes(fsp)) {
1789
1790 /*
1791 * We've got changes pending, respond immediately
1792 */
1793
1794 /*
1795 * TODO: write a torture test to check the filtering behaviour
1796 * here.
1797 */
1798
1799 change_notify_reply(req,
1800 NT_STATUS_OK,
1801 max_param_count,
1802 fsp->notify,
1803 smbd_smb1_notify_reply);
1804
1805 /*
1806 * change_notify_reply() above has independently sent its
1807 * results
1808 */
1809 return;
1810 }
1811
1812 /*
1813 * No changes pending, queue the request
1814 */
1815
1816 status = change_notify_add_request(req,
1817 max_param_count,
1818 filter,
1819 recursive, fsp,
1820 smbd_smb1_notify_reply);
1821 if (!NT_STATUS_IS_OK(status)) {
1822 reply_nterror(req, status);
1823 }
1824 return;
1825 }
1826
1827 /****************************************************************************
1828 Reply to an NT transact rename command.
1829 ****************************************************************************/
1830
1831 static void call_nt_transact_rename(connection_struct *conn,
1832 struct smb_request *req,
1833 uint16 **ppsetup, uint32 setup_count,
1834 char **ppparams, uint32 parameter_count,
1835 char **ppdata, uint32 data_count,
1836 uint32 max_data_count)
1837 {
1838 char *params = *ppparams;
1839 char *new_name = NULL;
1840 files_struct *fsp = NULL;
1841 bool dest_has_wcard = False;
1842 NTSTATUS status;
1843 TALLOC_CTX *ctx = talloc_tos();
1844
1845 if(parameter_count < 5) {
1846 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1847 return;
1848 }
1849
1850 fsp = file_fsp(req, SVAL(params, 0));
1851 if (!check_fsp(conn, req, fsp)) {
1852 return;
1853 }
1854 srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
1855 parameter_count - 4,
1856 STR_TERMINATE, &status, &dest_has_wcard);
1857 if (!NT_STATUS_IS_OK(status)) {
1858 reply_nterror(req, status);
1859 return;
1860 }
1861
1862 /*
1863 * W2K3 ignores this request as the RAW-RENAME test
1864 * demonstrates, so we do.
1865 */
1866 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
1867
1868 DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
1869 fsp_str_dbg(fsp), new_name));
1870
1871 return;
1872 }
1873
1874 /******************************************************************************
1875 Fake up a completely empty SD.
1876 *******************************************************************************/
1877
1878 static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, struct security_descriptor **ppsd)
1879 {
1880 size_t sd_size;
1881
1882 *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
1883 if(!*ppsd) {
1884 DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
1885 return NT_STATUS_NO_MEMORY;
1886 }
1887
1888 return NT_STATUS_OK;
1889 }
1890
1891 /****************************************************************************
1892 Reply to query a security descriptor.
1893 Callable from SMB2 and SMB2.
1894 If it returns NT_STATUS_BUFFER_TOO_SMALL, pdata_size is initialized with
1895 the required size.
1896 ****************************************************************************/
1897
1898 NTSTATUS smbd_do_query_security_desc(connection_struct *conn,
1899 TALLOC_CTX *mem_ctx,
1900 files_struct *fsp,
1901 uint32_t security_info_wanted,
1902 uint32_t max_data_count,
1903 uint8_t **ppmarshalled_sd,
1904 size_t *psd_size)
1905 {
1906 NTSTATUS status;
1907 struct security_descriptor *psd = NULL;
1908
1909 /*
1910 * Get the permissions to return.
1911 */
1912
1913 if ((security_info_wanted & SECINFO_SACL) &&
1914 !(fsp->access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
1915 DEBUG(10, ("Access to SACL denied.\n"));
1916 return NT_STATUS_ACCESS_DENIED;
1917 }
1918
1919 if ((security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|SECINFO_GROUP)) &&
1920 !(fsp->access_mask & SEC_STD_READ_CONTROL)) {
1921 DEBUG(10, ("Access to DACL, OWNER, or GROUP denied.\n"));
1922 return NT_STATUS_ACCESS_DENIED;
1923 }
1924
1925 if (security_info_wanted & (SECINFO_DACL|SECINFO_OWNER|
1926 SECINFO_GROUP|SECINFO_SACL)) {
1927 /* Don't return SECINFO_LABEL if anything else was
1928 requested. See bug #8458. */
1929 security_info_wanted &= ~SECINFO_LABEL;
1930 }
1931
1932 if (!lp_nt_acl_support(SNUM(conn))) {
1933 status = get_null_nt_acl(mem_ctx, &psd);
1934 } else if (security_info_wanted & SECINFO_LABEL) {
1935 /* Like W2K3 return a null object. */
1936 status = get_null_nt_acl(mem_ctx, &psd);
1937 } else {
1938 status = SMB_VFS_FGET_NT_ACL(
1939 fsp, security_info_wanted, &psd);
1940 }
1941 if (!NT_STATUS_IS_OK(status)) {
1942 return status;
1943 }
1944
1945 if (!(security_info_wanted & SECINFO_OWNER)) {
1946 psd->owner_sid = NULL;
1947 }
1948 if (!(security_info_wanted & SECINFO_GROUP)) {
1949 psd->group_sid = NULL;
1950 }
1951 if (!(security_info_wanted & SECINFO_DACL)) {
1952 psd->type &= ~SEC_DESC_DACL_PRESENT;
1953 psd->dacl = NULL;
1954 }
1955 if (!(security_info_wanted & SECINFO_SACL)) {
1956 psd->type &= ~SEC_DESC_SACL_PRESENT;
1957 psd->sacl = NULL;
1958 }
1959
1960 /* If the SACL/DACL is NULL, but was requested, we mark that it is
1961 * present in the reply to match Windows behavior */
1962 if (psd->sacl == NULL &&
1963 security_info_wanted & SECINFO_SACL)
1964 psd->type |= SEC_DESC_SACL_PRESENT;
1965 if (psd->dacl == NULL &&
1966 security_info_wanted & SECINFO_DACL)
1967 psd->type |= SEC_DESC_DACL_PRESENT;
1968
1969 if (security_info_wanted & SECINFO_LABEL) {
1970 /* Like W2K3 return a null object. */
1971 psd->owner_sid = NULL;
1972 psd->group_sid = NULL;
1973 psd->dacl = NULL;
1974 psd->sacl = NULL;
1975 psd->type &= ~(SEC_DESC_DACL_PRESENT|SEC_DESC_SACL_PRESENT);
1976 }
1977
1978 *psd_size = ndr_size_security_descriptor(psd, 0);
1979
1980 DEBUG(3,("smbd_do_query_security_desc: sd_size = %lu.\n",
1981 (unsigned long)*psd_size));
1982
1983 if (DEBUGLEVEL >= 10) {
1984 DEBUG(10,("smbd_do_query_security_desc for file %s\n",
1985 fsp_str_dbg(fsp)));
1986 NDR_PRINT_DEBUG(security_descriptor, psd);
1987 }
1988
1989 if (max_data_count < *psd_size) {
1990 TALLOC_FREE(psd);
1991 return NT_STATUS_BUFFER_TOO_SMALL;
1992 }
1993
1994 status = marshall_sec_desc(mem_ctx, psd,
1995 ppmarshalled_sd, psd_size);
1996
1997 if (!NT_STATUS_IS_OK(status)) {
1998 TALLOC_FREE(psd);
1999 return status;
2000 }
2001
2002 TALLOC_FREE(psd);
2003 return NT_STATUS_OK;
2004 }
2005
2006 /****************************************************************************
2007 SMB1 reply to query a security descriptor.
2008 ****************************************************************************/
2009
2010 static void call_nt_transact_query_security_desc(connection_struct *conn,
2011 struct smb_request *req,
2012 uint16 **ppsetup,
2013 uint32 setup_count,
2014 char **ppparams,
2015 uint32 parameter_count,
2016 char **ppdata,
2017 uint32 data_count,
2018 uint32 max_data_count)
2019 {
2020 char *params = *ppparams;
2021 char *data = *ppdata;
2022 size_t sd_size = 0;
2023 uint32 security_info_wanted;
2024 files_struct *fsp = NULL;
2025 NTSTATUS status;
2026 uint8_t *marshalled_sd = NULL;
2027
2028 if(parameter_count < 8) {
2029 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2030 return;
2031 }
2032
2033 fsp = file_fsp(req, SVAL(params,0));
2034 if(!fsp) {
2035 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2036 return;
2037 }
2038
2039 security_info_wanted = IVAL(params,4);
2040
2041 DEBUG(3,("call_nt_transact_query_security_desc: file = %s, "
2042 "info_wanted = 0x%x\n", fsp_str_dbg(fsp),
2043 (unsigned int)security_info_wanted));
2044
2045 params = nttrans_realloc(ppparams, 4);
2046 if(params == NULL) {
2047 reply_nterror(req, NT_STATUS_NO_MEMORY);
2048 return;
2049 }
2050
2051 /*
2052 * Get the permissions to return.
2053 */
2054
2055 status = smbd_do_query_security_desc(conn,
2056 talloc_tos(),
2057 fsp,
2058 security_info_wanted,
2059 max_data_count,
2060 &marshalled_sd,
2061 &sd_size);
2062
2063 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL)) {
2064 SIVAL(params,0,(uint32_t)sd_size);
2065 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2066 params, 4, NULL, 0);
2067 return;
2068 }
2069
2070 if (!NT_STATUS_IS_OK(status)) {
2071 reply_nterror(req, status);
2072 return;
2073 }
2074
2075 SMB_ASSERT(sd_size > 0);
2076
2077 SIVAL(params,0,(uint32_t)sd_size);
2078
2079 if (max_data_count < sd_size) {
2080 send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
2081 params, 4, NULL, 0);
2082 return;
2083 }
2084
2085 /*
2086 * Allocate the data we will return.
2087 */
2088
2089 data = nttrans_realloc(ppdata, sd_size);
2090 if(data == NULL) {
2091 reply_nterror(req, NT_STATUS_NO_MEMORY);
2092 return;
2093 }
2094
2095 memcpy(data, marshalled_sd, sd_size);
2096
2097 send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size);
2098
2099 return;
2100 }
2101
2102 /****************************************************************************
2103 Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
2104 ****************************************************************************/
2105
2106 static void call_nt_transact_set_security_desc(connection_struct *conn,
2107 struct smb_request *req,
2108 uint16 **ppsetup,
2109 uint32 setup_count,
2110 char **ppparams,
2111 uint32 parameter_count,
2112 char **ppdata,
2113 uint32 data_count,
2114 uint32 max_data_count)
2115 {
2116 char *params= *ppparams;
2117 char *data = *ppdata;
2118 files_struct *fsp = NULL;
2119 uint32 security_info_sent = 0;
2120 NTSTATUS status;
2121
2122 if(parameter_count < 8) {
2123 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2124 return;
2125 }
2126
2127 if((fsp = file_fsp(req, SVAL(params,0))) == NULL) {
2128 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2129 return;
2130 }
2131
2132 if (!CAN_WRITE(fsp->conn)) {
2133 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2134 return;
2135 }
2136
2137 if(!lp_nt_acl_support(SNUM(conn))) {
2138 goto done;
2139 }
2140
2141 security_info_sent = IVAL(params,4);
2142
2143 DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n",
2144 fsp_str_dbg(fsp), (unsigned int)security_info_sent));
2145
2146 if (data_count == 0) {
2147 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2148 return;
2149 }
2150
2151 status = set_sd_blob(fsp, (uint8 *)data, data_count, security_info_sent);
2152
2153 if (!NT_STATUS_IS_OK(status)) {
2154 reply_nterror(req, status);
2155 return;
2156 }
2157
2158 done:
2159 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
2160 return;
2161 }
2162
2163 /****************************************************************************
2164 Reply to NT IOCTL
2165 ****************************************************************************/
2166
2167 static void call_nt_transact_ioctl(connection_struct *conn,
2168 struct smb_request *req,
2169 uint16 **ppsetup, uint32 setup_count,
2170 char **ppparams, uint32 parameter_count,
2171 char **ppdata, uint32 data_count,
2172 uint32 max_data_count)
2173 {
2174 NTSTATUS status;
2175 uint32 function;
2176 uint16 fidnum;
2177 files_struct *fsp;
2178 uint8 isFSctl;
2179 uint8 compfilter;
2180 char *out_data = NULL;
2181 uint32 out_data_len = 0;
2182 char *pdata = *ppdata;
2183 TALLOC_CTX *ctx = talloc_tos();
2184
2185 if (setup_count != 8) {
2186 DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
2187 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2188 return;
2189 }
2190
2191 function = IVAL(*ppsetup, 0);
2192 fidnum = SVAL(*ppsetup, 4);
2193 isFSctl = CVAL(*ppsetup, 6);
2194 compfilter = CVAL(*ppsetup, 7);
2195
2196 DEBUG(10, ("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
2197 function, fidnum, isFSctl, compfilter));
2198
2199 fsp=file_fsp(req, fidnum);
2200
2201 /*
2202 * We don't really implement IOCTLs, especially on files.
2203 */
2204 if (!isFSctl) {
2205 DEBUG(10, ("isFSctl: 0x%02X indicates IOCTL, not FSCTL!\n",
2206 isFSctl));
2207 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
2208 return;
2209 }
2210
2211 /* Has to be for an open file! */
2212 if (!check_fsp_open(conn, req, fsp)) {
2213 return;
2214 }
2215
2216 SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
2217
2218 /*
2219 * out_data might be allocated by the VFS module, but talloc should be
2220 * used, and should be cleaned up when the request ends.
2221 */
2222 status = SMB_VFS_FSCTL(fsp,
2223 ctx,
2224 function,
2225 req->flags2,
2226 (uint8_t *)pdata,
2227 data_count,
2228 (uint8_t **)&out_data,
2229 max_data_count,
2230 &out_data_len);
2231 if (!NT_STATUS_IS_OK(status)) {
2232 reply_nterror(req, status);
2233 } else {
2234 send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, out_data, out_data_len);
2235 }
2236 }
2237
2238
2239 #ifdef HAVE_SYS_QUOTAS
2240 /****************************************************************************
2241 Reply to get user quota
2242 ****************************************************************************/
2243
2244 static void call_nt_transact_get_user_quota(connection_struct *conn,
2245 struct smb_request *req,
2246 uint16 **ppsetup,
2247 uint32 setup_count,
2248 char **ppparams,
2249 uint32 parameter_count,
2250 char **ppdata,
2251 uint32 data_count,
2252 uint32 max_data_count)
2253 {
2254 NTSTATUS nt_status = NT_STATUS_OK;
2255 char *params = *ppparams;
2256 char *pdata = *ppdata;
2257 char *entry;
2258 int data_len=0,param_len=0;
2259 int qt_len=0;
2260 int entry_len = 0;
2261 files_struct *fsp = NULL;
2262 uint16 level = 0;
2263 size_t sid_len;
2264 struct dom_sid sid;
2265 bool start_enum = True;
2266 SMB_NTQUOTA_STRUCT qt;
2267 SMB_NTQUOTA_LIST *tmp_list;
2268 SMB_NTQUOTA_HANDLE *qt_handle = NULL;
2269
2270 ZERO_STRUCT(qt);
2271
2272 /* access check */
2273 if (get_current_uid(conn) != 0) {
2274 DEBUG(1,("get_user_quota: access_denied service [%s] user "
2275 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2276 conn->session_info->unix_info->unix_name));
2277 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2278 return;
2279 }
2280
2281 /*
2282 * Ensure minimum number of parameters sent.
2283 */
2284
2285 if (parameter_count < 4) {
2286 DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
2287 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2288 return;
2289 }
2290
2291 /* maybe we can check the quota_fnum */
2292 fsp = file_fsp(req, SVAL(params,0));
2293 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2294 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2295 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2296 return;
2297 }
2298
2299 /* the NULL pointer checking for fsp->fake_file_handle->pd
2300 * is done by CHECK_NTQUOTA_HANDLE_OK()
2301 */
2302 qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data;
2303
2304 level = SVAL(params,2);
2305
2306 /* unknown 12 bytes leading in params */
2307
2308 switch (level) {
2309 case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
2310 /* seems that we should continue with the enum here --metze */
2311
2312 if (qt_handle->quota_list!=NULL &&
2313 qt_handle->tmp_list==NULL) {
2314
2315 /* free the list */
2316 free_ntquota_list(&(qt_handle->quota_list));
2317
2318 /* Realloc the size of parameters and data we will return */
2319 param_len = 4;
2320 params = nttrans_realloc(ppparams, param_len);
2321 if(params == NULL) {
2322 reply_nterror(req, NT_STATUS_NO_MEMORY);
2323 return;
2324 }
2325
2326 data_len = 0;
2327 SIVAL(params,0,data_len);
2328
2329 break;
2330 }
2331
2332 start_enum = False;
2333
2334 case TRANSACT_GET_USER_QUOTA_LIST_START:
2335
2336 if (qt_handle->quota_list==NULL &&
2337 qt_handle->tmp_list==NULL) {
2338 start_enum = True;
2339 }
2340
2341 if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
2342 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2343 return;
2344 }
2345
2346 /* Realloc the size of parameters and data we will return */
2347 param_len = 4;
2348 params = nttrans_realloc(ppparams, param_len);
2349 if(params == NULL) {
2350 reply_nterror(req, NT_STATUS_NO_MEMORY);
2351 return;
2352 }
2353
2354 /* we should not trust the value in max_data_count*/
2355 max_data_count = MIN(max_data_count,2048);
2356
2357 pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
2358 if(pdata == NULL) {
2359 reply_nterror(req, NT_STATUS_NO_MEMORY);
2360 return;
2361 }
2362
2363 entry = pdata;
2364
2365 /* set params Size of returned Quota Data 4 bytes*/
2366 /* but set it later when we know it */
2367
2368 /* for each entry push the data */
2369
2370 if (start_enum) {
2371 qt_handle->tmp_list = qt_handle->quota_list;
2372 }
2373
2374 tmp_list = qt_handle->tmp_list;
2375
2376 for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
2377 tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
2378
2379 sid_len = ndr_size_dom_sid(
2380 &tmp_list->quotas->sid, 0);
2381 entry_len = 40 + sid_len;
2382
2383 /* nextoffset entry 4 bytes */
2384 SIVAL(entry,0,entry_len);
2385
2386 /* then the len of the SID 4 bytes */
2387 SIVAL(entry,4,sid_len);
2388
2389 /* unknown data 8 bytes uint64_t */
2390 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
2391
2392 /* the used disk space 8 bytes uint64_t */
2393 SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
2394
2395 /* the soft quotas 8 bytes uint64_t */
2396 SBIG_UINT(entry,24,tmp_list->quotas->softlim);
2397
2398 /* the hard quotas 8 bytes uint64_t */
2399 SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
2400
2401 /* and now the SID */
2402 sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
2403 }
2404
2405 qt_handle->tmp_list = tmp_list;
2406
2407 /* overwrite the offset of the last entry */
2408 SIVAL(entry-entry_len,0,0);
2409
2410 data_len = 4+qt_len;
2411 /* overwrite the params quota_data_len */
2412 SIVAL(params,0,data_len);
2413
2414 break;
2415
2416 case TRANSACT_GET_USER_QUOTA_FOR_SID:
2417
2418 /* unknown 4 bytes IVAL(pdata,0) */
2419
2420 if (data_count < 8) {
2421 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
2422 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2423 return;
2424 }
2425
2426 sid_len = IVAL(pdata,4);
2427 /* Ensure this is less than 1mb. */
2428 if (sid_len > (1024*1024)) {
2429 reply_nterror(req, NT_STATUS_NO_MEMORY);
2430 return;
2431 }
2432
2433 if (data_count < 8+sid_len) {
2434 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
2435 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2436 return;
2437 }
2438
2439 data_len = 4+40+sid_len;
2440
2441 if (max_data_count < data_len) {
2442 DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
2443 max_data_count, data_len));
2444 param_len = 4;
2445 SIVAL(params,0,data_len);
2446 data_len = 0;
2447 nt_status = NT_STATUS_BUFFER_TOO_SMALL;
2448 break;
2449 }
2450
2451 if (!sid_parse(pdata+8,sid_len,&sid)) {
2452 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2453 return;
2454 }
2455
2456 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2457 ZERO_STRUCT(qt);
2458 /*
2459 * we have to return zero's in all fields
2460 * instead of returning an error here
2461 * --metze
2462 */
2463 }
2464
2465 /* Realloc the size of parameters and data we will return */
2466 param_len = 4;
2467 params = nttrans_realloc(ppparams, param_len);
2468 if(params == NULL) {
2469 reply_nterror(req, NT_STATUS_NO_MEMORY);
2470 return;
2471 }
2472
2473 pdata = nttrans_realloc(ppdata, data_len);
2474 if(pdata == NULL) {
2475 reply_nterror(req, NT_STATUS_NO_MEMORY);
2476 return;
2477 }
2478
2479 entry = pdata;
2480
2481 /* set params Size of returned Quota Data 4 bytes*/
2482 SIVAL(params,0,data_len);
2483
2484 /* nextoffset entry 4 bytes */
2485 SIVAL(entry,0,0);
2486
2487 /* then the len of the SID 4 bytes */
2488 SIVAL(entry,4,sid_len);
2489
2490 /* unknown data 8 bytes uint64_t */
2491 SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
2492
2493 /* the used disk space 8 bytes uint64_t */
2494 SBIG_UINT(entry,16,qt.usedspace);
2495
2496 /* the soft quotas 8 bytes uint64_t */
2497 SBIG_UINT(entry,24,qt.softlim);
2498
2499 /* the hard quotas 8 bytes uint64_t */
2500 SBIG_UINT(entry,32,qt.hardlim);
2501
2502 /* and now the SID */
2503 sid_linearize(entry+40, sid_len, &sid);
2504
2505 break;
2506
2507 default:
2508 DEBUG(0, ("do_nt_transact_get_user_quota: %s: unknown "
2509 "level 0x%04hX\n",
2510 fsp_fnum_dbg(fsp), level));
2511 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2512 return;
2513 break;
2514 }
2515
2516 send_nt_replies(conn, req, nt_status, params, param_len,
2517 pdata, data_len);
2518 }
2519
2520 /****************************************************************************
2521 Reply to set user quota
2522 ****************************************************************************/
2523
2524 static void call_nt_transact_set_user_quota(connection_struct *conn,
2525 struct smb_request *req,
2526 uint16 **ppsetup,
2527 uint32 setup_count,
2528 char **ppparams,
2529 uint32 parameter_count,
2530 char **ppdata,
2531 uint32 data_count,
2532 uint32 max_data_count)
2533 {
2534 char *params = *ppparams;
2535 char *pdata = *ppdata;
2536 int data_len=0,param_len=0;
2537 SMB_NTQUOTA_STRUCT qt;
2538 size_t sid_len;
2539 struct dom_sid sid;
2540 files_struct *fsp = NULL;
2541
2542 ZERO_STRUCT(qt);
2543
2544 /* access check */
2545 if (get_current_uid(conn) != 0) {
2546 DEBUG(1,("set_user_quota: access_denied service [%s] user "
2547 "[%s]\n", lp_servicename(talloc_tos(), SNUM(conn)),
2548 conn->session_info->unix_info->unix_name));
2549 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2550 return;
2551 }
2552
2553 /*
2554 * Ensure minimum number of parameters sent.
2555 */
2556
2557 if (parameter_count < 2) {
2558 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
2559 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2560 return;
2561 }
2562
2563 /* maybe we can check the quota_fnum */
2564 fsp = file_fsp(req, SVAL(params,0));
2565 if (!check_fsp_ntquota_handle(conn, req, fsp)) {
2566 DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
2567 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
2568 return;
2569 }
2570
2571 if (data_count < 40) {
2572 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
2573 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2574 return;
2575 }
2576
2577 /* offset to next quota record.
2578 * 4 bytes IVAL(pdata,0)
2579 * unused here...
2580 */
2581
2582 /* sid len */
2583 sid_len = IVAL(pdata,4);
2584
2585 if (data_count < 40+sid_len || (40+sid_len < sid_len)) {
2586 DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
2587 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2588 return;
2589 }
2590
2591 /* unknown 8 bytes in pdata
2592 * maybe its the change time in NTTIME
2593 */
2594
2595 /* the used space 8 bytes (uint64_t)*/
2596 qt.usedspace = BVAL(pdata,16);
2597
2598 /* the soft quotas 8 bytes (uint64_t)*/
2599 qt.softlim = BVAL(pdata,24);
2600
2601 /* the hard quotas 8 bytes (uint64_t)*/
2602 qt.hardlim = BVAL(pdata,32);
2603
2604 if (!sid_parse(pdata+40,sid_len,&sid)) {
2605 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2606 return;
2607 }
2608
2609 DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid)));
2610
2611 /* 44 unknown bytes left... */
2612
2613 if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
2614 reply_nterror(req, NT_STATUS_INTERNAL_ERROR);
2615 return;
2616 }
2617
2618 send_nt_replies(conn, req, NT_STATUS_OK, params, param_len,
2619 pdata, data_len);
2620 }
2621 #endif /* HAVE_SYS_QUOTAS */
2622
2623 static void handle_nttrans(connection_struct *conn,
2624 struct trans_state *state,
2625 struct smb_request *req)
2626 {
2627 if (get_Protocol() >= PROTOCOL_NT1) {
2628 req->flags2 |= 0x40; /* IS_LONG_NAME */
2629 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_flg2,req->flags2);
2630 }
2631
2632
2633 SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
2634
2635 /* Now we must call the relevant NT_TRANS function */
2636 switch(state->call) {
2637 case NT_TRANSACT_CREATE:
2638 {
2639 START_PROFILE(NT_transact_create);
2640 call_nt_transact_create(
2641 conn, req,
2642 &state->setup, state->setup_count,
2643 &state->param, state->total_param,
2644 &state->data, state->total_data,
2645 state->max_data_return);
2646 END_PROFILE(NT_transact_create);
2647 break;
2648 }
2649
2650 case NT_TRANSACT_IOCTL:
2651 {
2652 START_PROFILE(NT_transact_ioctl);
2653 call_nt_transact_ioctl(
2654 conn, req,
2655 &state->setup, state->setup_count,
2656 &state->param, state->total_param,
2657 &state->data, state->total_data,
2658 state->max_data_return);
2659 END_PROFILE(NT_transact_ioctl);
2660 break;
2661 }
2662
2663 case NT_TRANSACT_SET_SECURITY_DESC:
2664 {
2665 START_PROFILE(NT_transact_set_security_desc);
2666 call_nt_transact_set_security_desc(
2667 conn, req,
2668 &state->setup, state->setup_count,
2669 &state->param, state->total_param,
2670 &state->data, state->total_data,
2671 state->max_data_return);
2672 END_PROFILE(NT_transact_set_security_desc);
2673 break;
2674 }
2675
2676 case NT_TRANSACT_NOTIFY_CHANGE:
2677 {
2678 START_PROFILE(NT_transact_notify_change);
2679 call_nt_transact_notify_change(
2680 conn, req,
2681 &state->setup, state->setup_count,
2682 &state->param, state->total_param,
2683 &state->data, state->total_data,
2684 state->max_data_return,
2685 state->max_param_return);
2686 END_PROFILE(NT_transact_notify_change);
2687 break;
2688 }
2689
2690 case NT_TRANSACT_RENAME:
2691 {
2692 START_PROFILE(NT_transact_rename);
2693 call_nt_transact_rename(
2694 conn, req,
2695 &state->setup, state->setup_count,
2696 &state->param, state->total_param,
2697 &state->data, state->total_data,
2698 state->max_data_return);
2699 END_PROFILE(NT_transact_rename);
2700 break;
2701 }
2702
2703 case NT_TRANSACT_QUERY_SECURITY_DESC:
2704 {
2705 START_PROFILE(NT_transact_query_security_desc);
2706 call_nt_transact_query_security_desc(
2707 conn, req,
2708 &state->setup, state->setup_count,
2709 &state->param, state->total_param,
2710 &state->data, state->total_data,
2711 state->max_data_return);
2712 END_PROFILE(NT_transact_query_security_desc);
2713 break;
2714 }
2715
2716 #ifdef HAVE_SYS_QUOTAS
2717 case NT_TRANSACT_GET_USER_QUOTA:
2718 {
2719 START_PROFILE(NT_transact_get_user_quota);
2720 call_nt_transact_get_user_quota(
2721 conn, req,
2722 &state->setup, state->setup_count,
2723 &state->param, state->total_param,
2724 &state->data, state->total_data,
2725 state->max_data_return);
2726 END_PROFILE(NT_transact_get_user_quota);
2727 break;
2728 }
2729
2730 case NT_TRANSACT_SET_USER_QUOTA:
2731 {
2732 START_PROFILE(NT_transact_set_user_quota);
2733 call_nt_transact_set_user_quota(
2734 conn, req,
2735 &state->setup, state->setup_count,
2736 &state->param, state->total_param,
2737 &state->data, state->total_data,
2738 state->max_data_return);
2739 END_PROFILE(NT_transact_set_user_quota);
2740 break;
2741 }
2742 #endif /* HAVE_SYS_QUOTAS */
2743
2744 default:
2745 /* Error in request */
2746 DEBUG(0,("handle_nttrans: Unknown request %d in "
2747 "nttrans call\n", state->call));
2748 reply_nterror(req, NT_STATUS_INVALID_LEVEL);
2749 return;
2750 }
2751 return;
2752 }
2753
2754 /****************************************************************************
2755 Reply to a SMBNTtrans.
2756 ****************************************************************************/
2757
2758 void reply_nttrans(struct smb_request *req)
2759 {
2760 connection_struct *conn = req->conn;
2761 uint32_t pscnt;
2762 uint32_t psoff;
2763 uint32_t dscnt;
2764 uint32_t dsoff;
2765 uint16 function_code;
2766 NTSTATUS result;
2767 struct trans_state *state;
2768
2769 START_PROFILE(SMBnttrans);
2770
2771 if (req->wct < 19) {
2772 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2773 END_PROFILE(SMBnttrans);
2774 return;
2775 }
2776
2777 pscnt = IVAL(req->vwv+9, 1);
2778 psoff = IVAL(req->vwv+11, 1);
2779 dscnt = IVAL(req->vwv+13, 1);
2780 dsoff = IVAL(req->vwv+15, 1);
2781 function_code = SVAL(req->vwv+18, 0);
2782
2783 if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
2784 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2785 END_PROFILE(SMBnttrans);
2786 return;
2787 }
2788
2789 result = allow_new_trans(conn->pending_trans, req->mid);
2790 if (!NT_STATUS_IS_OK(result)) {
2791 DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
2792 reply_nterror(req, result);
2793 END_PROFILE(SMBnttrans);
2794 return;
2795 }
2796
2797 if ((state = talloc(conn, struct trans_state)) == NULL) {
2798 reply_nterror(req, NT_STATUS_NO_MEMORY);
2799 END_PROFILE(SMBnttrans);
2800 return;
2801 }
2802
2803 state->cmd = SMBnttrans;
2804
2805 state->mid = req->mid;
2806 state->vuid = req->vuid;
2807 state->total_data = IVAL(req->vwv+3, 1);
2808 state->data = NULL;
2809 state->total_param = IVAL(req->vwv+1, 1);
2810 state->param = NULL;
2811 state->max_data_return = IVAL(req->vwv+7, 1);
2812 state->max_param_return = IVAL(req->vwv+5, 1);
2813
2814 /* setup count is in *words* */
2815 state->setup_count = 2*CVAL(req->vwv+17, 1);
2816 state->setup = NULL;
2817 state->call = function_code;
2818
2819 DEBUG(10, ("num_setup=%u, "
2820 "param_total=%u, this_param=%u, max_param=%u, "
2821 "data_total=%u, this_data=%u, max_data=%u, "
2822 "param_offset=%u, data_offset=%u\n",
2823 (unsigned)state->setup_count,
2824 (unsigned)state->total_param, (unsigned)pscnt,
2825 (unsigned)state->max_param_return,
2826 (unsigned)state->total_data, (unsigned)dscnt,
2827 (unsigned)state->max_data_return,
2828 (unsigned)psoff, (unsigned)dsoff));
2829
2830 /*
2831 * All nttrans messages we handle have smb_wct == 19 +
2832 * state->setup_count. Ensure this is so as a sanity check.
2833 */
2834
2835 if(req->wct != 19 + (state->setup_count/2)) {
2836 DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
2837 req->wct, 19 + (state->setup_count/2)));
2838 goto bad_param;
2839 }
2840
2841 /* Don't allow more than 128mb for each value. */
2842 if ((state->total_data > (1024*1024*128)) ||
2843 (state->total_param > (1024*1024*128))) {
2844 reply_nterror(req, NT_STATUS_NO_MEMORY);
2845 END_PROFILE(SMBnttrans);
2846 return;
2847 }
2848
2849 if ((dscnt > state->total_data) || (pscnt > state->total_param))
2850 goto bad_param;
2851
2852 if (state->total_data) {
2853
2854 if (trans_oob(state->total_data, 0, dscnt)
2855 || trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
2856 goto bad_param;
2857 }
2858
2859 /* Can't use talloc here, the core routines do realloc on the
2860 * params and data. */
2861 if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
2862 DEBUG(0,("reply_nttrans: data malloc fail for %u "
2863 "bytes !\n", (unsigned int)state->total_data));
2864 TALLOC_FREE(state);
2865 reply_nterror(req, NT_STATUS_NO_MEMORY);
2866 END_PROFILE(SMBnttrans);
2867 return;
2868 }
2869
2870 memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
2871 }
2872
2873 if (state->total_param) {
2874
2875 if (trans_oob(state->total_param, 0, pscnt)
2876 || trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
2877 goto bad_param;
2878 }
2879
2880 /* Can't use talloc here, the core routines do realloc on the
2881 * params and data. */
2882 if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
2883 DEBUG(0,("reply_nttrans: param malloc fail for %u "
2884 "bytes !\n", (unsigned int)state->total_param));
2885 SAFE_FREE(state->data);
2886 TALLOC_FREE(state);
2887 reply_nterror(req, NT_STATUS_NO_MEMORY);
2888 END_PROFILE(SMBnttrans);
2889 return;
2890 }
2891
2892 memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
2893 }
2894
2895 state->received_data = dscnt;
2896 state->received_param = pscnt;
2897
2898 if(state->setup_count > 0) {
2899 DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
2900 state->setup_count));
2901
2902 /*
2903 * No overflow possible here, state->setup_count is an
2904 * unsigned int, being filled by a single byte from
2905 * CVAL(req->vwv+13, 0) above. The cast in the comparison
2906 * below is not necessary, it's here to clarify things. The
2907 * validity of req->vwv and req->wct has been checked in
2908 * init_smb_request already.
2909 */
2910 if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
2911 goto bad_param;
2912 }
2913
2914 state->setup = (uint16 *)TALLOC(state, state->setup_count);
2915 if (state->setup == NULL) {
2916 DEBUG(0,("reply_nttrans : Out of memory\n"));
2917 SAFE_FREE(state->data);
2918 SAFE_FREE(state->param);
2919 TALLOC_FREE(state);
2920 reply_nterror(req, NT_STATUS_NO_MEMORY);
2921 END_PROFILE(SMBnttrans);
2922 return;
2923 }
2924
2925 memcpy(state->setup, req->vwv+19, state->setup_count);
2926 dump_data(10, (uint8 *)state->setup, state->setup_count);
2927 }
2928
2929 if ((state->received_data == state->total_data) &&
2930 (state->received_param == state->total_param)) {
2931 handle_nttrans(conn, state, req);
2932 SAFE_FREE(state->param);
2933 SAFE_FREE(state->data);
2934 TALLOC_FREE(state);
2935 END_PROFILE(SMBnttrans);
2936 return;
2937 }
2938
2939 DLIST_ADD(conn->pending_trans, state);
2940
2941 /* We need to send an interim response then receive the rest
2942 of the parameter/data bytes */
2943 reply_outbuf(req, 0, 0);
2944 show_msg((char *)req->outbuf);
2945 END_PROFILE(SMBnttrans);
2946 return;
2947
2948 bad_param:
2949
2950 DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
2951 SAFE_FREE(state->data);
2952 SAFE_FREE(state->param);
2953 TALLOC_FREE(state);
2954 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2955 END_PROFILE(SMBnttrans);
2956 return;
2957 }
2958
2959 /****************************************************************************
2960 Reply to a SMBnttranss
2961 ****************************************************************************/
2962
2963 void reply_nttranss(struct smb_request *req)
2964 {
2965 connection_struct *conn = req->conn;
2966 uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
2967 struct trans_state *state;
2968
2969 START_PROFILE(SMBnttranss);
2970
2971 show_msg((const char *)req->inbuf);
2972
2973 /* Windows clients expect all replies to
2974 an NT transact secondary (SMBnttranss 0xA1)
2975 to have a command code of NT transact
2976 (SMBnttrans 0xA0). See bug #8989 for details. */
2977 req->cmd = SMBnttrans;
2978
2979 if (req->wct < 18) {
2980 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2981 END_PROFILE(SMBnttranss);
2982 return;
2983 }
2984
2985 for (state = conn->pending_trans; state != NULL;
2986 state = state->next) {
2987 if (state->mid == req->mid) {
2988 break;
2989 }
2990 }
2991
2992 if ((state == NULL) || (state->cmd != SMBnttrans)) {
2993 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2994 END_PROFILE(SMBnttranss);
2995 return;
2996 }
2997
2998 /* Revise state->total_param and state->total_data in case they have
2999 changed downwards */
3000 if (IVAL(req->vwv+1, 1) < state->total_param) {
3001 state->total_param = IVAL(req->vwv+1, 1);
3002 }
3003 if (IVAL(req->vwv+3, 1) < state->total_data) {
3004 state->total_data = IVAL(req->vwv+3, 1);
3005 }
3006
3007 pcnt = IVAL(req->vwv+5, 1);
3008 poff = IVAL(req->vwv+7, 1);
3009 pdisp = IVAL(req->vwv+9, 1);
3010
3011 dcnt = IVAL(req->vwv+11, 1);
3012 doff = IVAL(req->vwv+13, 1);
3013 ddisp = IVAL(req->vwv+15, 1);
3014
3015 state->received_param += pcnt;
3016 state->received_data += dcnt;
3017
3018 if ((state->received_data > state->total_data) ||
3019 (state->received_param > state->total_param))
3020 goto bad_param;
3021
3022 if (pcnt) {
3023 if (trans_oob(state->total_param, pdisp, pcnt)
3024 || trans_oob(smb_len(req->inbuf), poff, pcnt)) {
3025 goto bad_param;
3026 }
3027 memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
3028 }
3029
3030 if (dcnt) {
3031 if (trans_oob(state->total_data, ddisp, dcnt)
3032 || trans_oob(smb_len(req->inbuf), doff, dcnt)) {
3033 goto bad_param;
3034 }
3035 memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,dcnt);
3036 }
3037
3038 if ((state->received_param < state->total_param) ||
3039 (state->received_data < state->total_data)) {
3040 END_PROFILE(SMBnttranss);
3041 return;
3042 }
3043
3044 handle_nttrans(conn, state, req);
3045
3046 DLIST_REMOVE(conn->pending_trans, state);
3047 SAFE_FREE(state->data);
3048 SAFE_FREE(state->param);
3049 TALLOC_FREE(state);
3050 END_PROFILE(SMBnttranss);
3051 return;
3052
3053 bad_param:
3054
3055 DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
3056 DLIST_REMOVE(conn->pending_trans, state);
3057 SAFE_FREE(state->data);
3058 SAFE_FREE(state->param);
3059 TALLOC_FREE(state);
3060 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3061 END_PROFILE(SMBnttranss);
3062 return;
3063 }
reg import