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smbd: Remove unused reply_to_oplock_break_requests
[Samba/gebeck_regimport.git] / source3 / smbd / reply.c
blob07b144e68b38ad7bdc216e0168b2ca7cc7910a6e
1 /*
2 Unix SMB/CIFS implementation.
3 Main SMB reply routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Andrew Bartlett 2001
6 Copyright (C) Jeremy Allison 1992-2007.
7 Copyright (C) Volker Lendecke 2007
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22 /*
23 This file handles most of the reply_ calls that the server
24 makes to handle specific protocols
25 */
26
27 #include "includes.h"
28 #include "system/filesys.h"
29 #include "printing.h"
30 #include "smbd/smbd.h"
31 #include "smbd/globals.h"
32 #include "fake_file.h"
33 #include "rpc_client/rpc_client.h"
34 #include "../librpc/gen_ndr/ndr_spoolss_c.h"
35 #include "../librpc/gen_ndr/open_files.h"
36 #include "rpc_client/cli_spoolss.h"
37 #include "rpc_client/init_spoolss.h"
38 #include "rpc_server/rpc_ncacn_np.h"
39 #include "libcli/security/security.h"
40 #include "libsmb/nmblib.h"
41 #include "auth.h"
42 #include "smbprofile.h"
43 #include "../lib/tsocket/tsocket.h"
44 #include "lib/tevent_wait.h"
45 #include "libcli/smb/smb_signing.h"
46
47 /****************************************************************************
48 Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
49 path or anything including wildcards.
50 We're assuming here that '/' is not the second byte in any multibyte char
51 set (a safe assumption). '\\' *may* be the second byte in a multibyte char
52 set.
53 ****************************************************************************/
54
55 /* Custom version for processing POSIX paths. */
56 #define IS_PATH_SEP(c,posix_only) ((c) == '/' || (!(posix_only) && (c) == '\\'))
57
58 static NTSTATUS check_path_syntax_internal(char *path,
59 bool posix_path,
60 bool *p_last_component_contains_wcard)
61 {
62 char *d = path;
63 const char *s = path;
64 NTSTATUS ret = NT_STATUS_OK;
65 bool start_of_name_component = True;
66 bool stream_started = false;
67
68 *p_last_component_contains_wcard = False;
69
70 while (*s) {
71 if (stream_started) {
72 switch (*s) {
73 case '/':
74 case '\\':
75 return NT_STATUS_OBJECT_NAME_INVALID;
76 case ':':
77 if (s[1] == '\0') {
78 return NT_STATUS_OBJECT_NAME_INVALID;
79 }
80 if (strchr_m(&s[1], ':')) {
81 return NT_STATUS_OBJECT_NAME_INVALID;
82 }
83 break;
84 }
85 }
86
87 if ((*s == ':') && !posix_path && !stream_started) {
88 if (*p_last_component_contains_wcard) {
89 return NT_STATUS_OBJECT_NAME_INVALID;
90 }
91 /* Stream names allow more characters than file names.
92 We're overloading posix_path here to allow a wider
93 range of characters. If stream_started is true this
94 is still a Windows path even if posix_path is true.
95 JRA.
96 */
97 stream_started = true;
98 start_of_name_component = false;
99 posix_path = true;
100
101 if (s[1] == '\0') {
102 return NT_STATUS_OBJECT_NAME_INVALID;
103 }
104 }
105
106 if (!stream_started && IS_PATH_SEP(*s,posix_path)) {
107 /*
108 * Safe to assume is not the second part of a mb char
109 * as this is handled below.
110 */
111 /* Eat multiple '/' or '\\' */
112 while (IS_PATH_SEP(*s,posix_path)) {
113 s++;
114 }
115 if ((d != path) && (*s != '\0')) {
116 /* We only care about non-leading or trailing '/' or '\\' */
117 *d++ = '/';
118 }
119
120 start_of_name_component = True;
121 /* New component. */
122 *p_last_component_contains_wcard = False;
123 continue;
124 }
125
126 if (start_of_name_component) {
127 if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) || s[2] == '\0')) {
128 /* Uh oh - "/../" or "\\..\\" or "/..\0" or "\\..\0" ! */
129
130 /*
131 * No mb char starts with '.' so we're safe checking the directory separator here.
132 */
133
134 /* If we just added a '/' - delete it */
135 if ((d > path) && (*(d-1) == '/')) {
136 *(d-1) = '\0';
137 d--;
138 }
139
140 /* Are we at the start ? Can't go back further if so. */
141 if (d <= path) {
142 ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
143 break;
144 }
145 /* Go back one level... */
146 /* We know this is safe as '/' cannot be part of a mb sequence. */
147 /* NOTE - if this assumption is invalid we are not in good shape... */
148 /* Decrement d first as d points to the *next* char to write into. */
149 for (d--; d > path; d--) {
150 if (*d == '/')
151 break;
152 }
153 s += 2; /* Else go past the .. */
154 /* We're still at the start of a name component, just the previous one. */
155 continue;
156
157 } else if ((s[0] == '.') && ((s[1] == '\0') || IS_PATH_SEP(s[1],posix_path))) {
158 if (posix_path) {
159 /* Eat the '.' */
160 s++;
161 continue;
162 }
163 }
164
165 }
166
167 if (!(*s & 0x80)) {
168 if (!posix_path) {
169 if (*s <= 0x1f || *s == '|') {
170 return NT_STATUS_OBJECT_NAME_INVALID;
171 }
172 switch (*s) {
173 case '*':
174 case '?':
175 case '<':
176 case '>':
177 case '"':
178 *p_last_component_contains_wcard = True;
179 break;
180 default:
181 break;
182 }
183 }
184 *d++ = *s++;
185 } else {
186 size_t siz;
187 /* Get the size of the next MB character. */
188 next_codepoint(s,&siz);
189 switch(siz) {
190 case 5:
191 *d++ = *s++;
192 /*fall through*/
193 case 4:
194 *d++ = *s++;
195 /*fall through*/
196 case 3:
197 *d++ = *s++;
198 /*fall through*/
199 case 2:
200 *d++ = *s++;
201 /*fall through*/
202 case 1:
203 *d++ = *s++;
204 break;
205 default:
206 DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
207 *d = '\0';
208 return NT_STATUS_INVALID_PARAMETER;
209 }
210 }
211 start_of_name_component = False;
212 }
213
214 *d = '\0';
215
216 return ret;
217 }
218
219 /****************************************************************************
220 Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
221 No wildcards allowed.
222 ****************************************************************************/
223
224 NTSTATUS check_path_syntax(char *path)
225 {
226 bool ignore;
227 return check_path_syntax_internal(path, False, &ignore);
228 }
229
230 /****************************************************************************
231 Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
232 Wildcards allowed - p_contains_wcard returns true if the last component contained
233 a wildcard.
234 ****************************************************************************/
235
236 NTSTATUS check_path_syntax_wcard(char *path, bool *p_contains_wcard)
237 {
238 return check_path_syntax_internal(path, False, p_contains_wcard);
239 }
240
241 /****************************************************************************
242 Check the path for a POSIX client.
243 We're assuming here that '/' is not the second byte in any multibyte char
244 set (a safe assumption).
245 ****************************************************************************/
246
247 NTSTATUS check_path_syntax_posix(char *path)
248 {
249 bool ignore;
250 return check_path_syntax_internal(path, True, &ignore);
251 }
252
253 /****************************************************************************
254 Pull a string and check the path allowing a wilcard - provide for error return.
255 ****************************************************************************/
256
257 size_t srvstr_get_path_wcard(TALLOC_CTX *ctx,
258 const char *base_ptr,
259 uint16 smb_flags2,
260 char **pp_dest,
261 const char *src,
262 size_t src_len,
263 int flags,
264 NTSTATUS *err,
265 bool *contains_wcard)
266 {
267 size_t ret;
268
269 *pp_dest = NULL;
270
271 ret = srvstr_pull_talloc(ctx, base_ptr, smb_flags2, pp_dest, src,
272 src_len, flags);
273
274 if (!*pp_dest) {
275 *err = NT_STATUS_INVALID_PARAMETER;
276 return ret;
277 }
278
279 *contains_wcard = False;
280
281 if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
282 /*
283 * For a DFS path the function parse_dfs_path()
284 * will do the path processing, just make a copy.
285 */
286 *err = NT_STATUS_OK;
287 return ret;
288 }
289
290 if (lp_posix_pathnames()) {
291 *err = check_path_syntax_posix(*pp_dest);
292 } else {
293 *err = check_path_syntax_wcard(*pp_dest, contains_wcard);
294 }
295
296 return ret;
297 }
298
299 /****************************************************************************
300 Pull a string and check the path - provide for error return.
301 ****************************************************************************/
302
303 size_t srvstr_get_path(TALLOC_CTX *ctx,
304 const char *base_ptr,
305 uint16 smb_flags2,
306 char **pp_dest,
307 const char *src,
308 size_t src_len,
309 int flags,
310 NTSTATUS *err)
311 {
312 bool ignore;
313 return srvstr_get_path_wcard(ctx, base_ptr, smb_flags2, pp_dest, src,
314 src_len, flags, err, &ignore);
315 }
316
317 size_t srvstr_get_path_req_wcard(TALLOC_CTX *mem_ctx, struct smb_request *req,
318 char **pp_dest, const char *src, int flags,
319 NTSTATUS *err, bool *contains_wcard)
320 {
321 ssize_t bufrem = smbreq_bufrem(req, src);
322
323 if (bufrem < 0) {
324 *err = NT_STATUS_INVALID_PARAMETER;
325 return 0;
326 }
327
328 return srvstr_get_path_wcard(mem_ctx, (const char *)req->inbuf,
329 req->flags2, pp_dest, src, bufrem, flags,
330 err, contains_wcard);
331 }
332
333 size_t srvstr_get_path_req(TALLOC_CTX *mem_ctx, struct smb_request *req,
334 char **pp_dest, const char *src, int flags,
335 NTSTATUS *err)
336 {
337 bool ignore;
338 return srvstr_get_path_req_wcard(mem_ctx, req, pp_dest, src,
339 flags, err, &ignore);
340 }
341
342 /**
343 * pull a string from the smb_buf part of a packet. In this case the
344 * string can either be null terminated or it can be terminated by the
345 * end of the smbbuf area
346 */
347 size_t srvstr_pull_req_talloc(TALLOC_CTX *ctx, struct smb_request *req,
348 char **dest, const char *src, int flags)
349 {
350 ssize_t bufrem = smbreq_bufrem(req, src);
351
352 if (bufrem < 0) {
353 return 0;
354 }
355
356 return pull_string_talloc(ctx, req->inbuf, req->flags2, dest, src,
357 bufrem, flags);
358 }
359
360 /****************************************************************************
361 Check if we have a correct fsp pointing to a file. Basic check for open fsp.
362 ****************************************************************************/
363
364 bool check_fsp_open(connection_struct *conn, struct smb_request *req,
365 files_struct *fsp)
366 {
367 if ((fsp == NULL) || (conn == NULL)) {
368 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
369 return False;
370 }
371 if ((conn != fsp->conn) || (req->vuid != fsp->vuid)) {
372 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
373 return False;
374 }
375 return True;
376 }
377
378 /****************************************************************************
379 Check if we have a correct fsp pointing to a file.
380 ****************************************************************************/
381
382 bool check_fsp(connection_struct *conn, struct smb_request *req,
383 files_struct *fsp)
384 {
385 if (!check_fsp_open(conn, req, fsp)) {
386 return False;
387 }
388 if (fsp->is_directory) {
389 reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
390 return False;
391 }
392 if (fsp->fh->fd == -1) {
393 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
394 return False;
395 }
396 fsp->num_smb_operations++;
397 return True;
398 }
399
400 /****************************************************************************
401 Check if we have a correct fsp pointing to a quota fake file. Replacement for
402 the CHECK_NTQUOTA_HANDLE_OK macro.
403 ****************************************************************************/
404
405 bool check_fsp_ntquota_handle(connection_struct *conn, struct smb_request *req,
406 files_struct *fsp)
407 {
408 if (!check_fsp_open(conn, req, fsp)) {
409 return false;
410 }
411
412 if (fsp->is_directory) {
413 return false;
414 }
415
416 if (fsp->fake_file_handle == NULL) {
417 return false;
418 }
419
420 if (fsp->fake_file_handle->type != FAKE_FILE_TYPE_QUOTA) {
421 return false;
422 }
423
424 if (fsp->fake_file_handle->private_data == NULL) {
425 return false;
426 }
427
428 return true;
429 }
430
431 static bool netbios_session_retarget(struct smbd_server_connection *sconn,
432 const char *name, int name_type)
433 {
434 char *trim_name;
435 char *trim_name_type;
436 const char *retarget_parm;
437 char *retarget;
438 char *p;
439 int retarget_type = 0x20;
440 int retarget_port = NBT_SMB_PORT;
441 struct sockaddr_storage retarget_addr;
442 struct sockaddr_in *in_addr;
443 bool ret = false;
444 uint8_t outbuf[10];
445
446 if (get_socket_port(sconn->sock) != NBT_SMB_PORT) {
447 return false;
448 }
449
450 trim_name = talloc_strdup(talloc_tos(), name);
451 if (trim_name == NULL) {
452 goto fail;
453 }
454 trim_char(trim_name, ' ', ' ');
455
456 trim_name_type = talloc_asprintf(trim_name, "%s#%2.2x", trim_name,
457 name_type);
458 if (trim_name_type == NULL) {
459 goto fail;
460 }
461
462 retarget_parm = lp_parm_const_string(-1, "netbios retarget",
463 trim_name_type, NULL);
464 if (retarget_parm == NULL) {
465 retarget_parm = lp_parm_const_string(-1, "netbios retarget",
466 trim_name, NULL);
467 }
468 if (retarget_parm == NULL) {
469 goto fail;
470 }
471
472 retarget = talloc_strdup(trim_name, retarget_parm);
473 if (retarget == NULL) {
474 goto fail;
475 }
476
477 DEBUG(10, ("retargeting %s to %s\n", trim_name_type, retarget));
478
479 p = strchr(retarget, ':');
480 if (p != NULL) {
481 *p++ = '\0';
482 retarget_port = atoi(p);
483 }
484
485 p = strchr_m(retarget, '#');
486 if (p != NULL) {
487 *p++ = '\0';
488 if (sscanf(p, "%x", &retarget_type) != 1) {
489 goto fail;
490 }
491 }
492
493 ret = resolve_name(retarget, &retarget_addr, retarget_type, false);
494 if (!ret) {
495 DEBUG(10, ("could not resolve %s\n", retarget));
496 goto fail;
497 }
498
499 if (retarget_addr.ss_family != AF_INET) {
500 DEBUG(10, ("Retarget target not an IPv4 addr\n"));
501 goto fail;
502 }
503
504 in_addr = (struct sockaddr_in *)(void *)&retarget_addr;
505
506 _smb_setlen(outbuf, 6);
507 SCVAL(outbuf, 0, 0x84);
508 *(uint32_t *)(outbuf+4) = in_addr->sin_addr.s_addr;
509 *(uint16_t *)(outbuf+8) = htons(retarget_port);
510
511 if (!srv_send_smb(sconn, (char *)outbuf, false, 0, false,
512 NULL)) {
513 exit_server_cleanly("netbios_session_retarget: srv_send_smb "
514 "failed.");
515 }
516
517 ret = true;
518 fail:
519 TALLOC_FREE(trim_name);
520 return ret;
521 }
522
523 static void reply_called_name_not_present(char *outbuf)
524 {
525 smb_setlen(outbuf, 1);
526 SCVAL(outbuf, 0, 0x83);
527 SCVAL(outbuf, 4, 0x82);
528 }
529
530 /****************************************************************************
531 Reply to a (netbios-level) special message.
532 ****************************************************************************/
533
534 void reply_special(struct smbd_server_connection *sconn, char *inbuf, size_t inbuf_size)
535 {
536 int msg_type = CVAL(inbuf,0);
537 int msg_flags = CVAL(inbuf,1);
538 /*
539 * We only really use 4 bytes of the outbuf, but for the smb_setlen
540 * calculation & friends (srv_send_smb uses that) we need the full smb
541 * header.
542 */
543 char outbuf[smb_size];
544
545 memset(outbuf, '\0', sizeof(outbuf));
546
547 smb_setlen(outbuf,0);
548
549 switch (msg_type) {
550 case NBSSrequest: /* session request */
551 {
552 /* inbuf_size is guarenteed to be at least 4. */
553 fstring name1,name2;
554 int name_type1, name_type2;
555 int name_len1, name_len2;
556
557 *name1 = *name2 = 0;
558
559 if (sconn->nbt.got_session) {
560 exit_server_cleanly("multiple session request not permitted");
561 }
562
563 SCVAL(outbuf,0,NBSSpositive);
564 SCVAL(outbuf,3,0);
565
566 /* inbuf_size is guaranteed to be at least 4. */
567 name_len1 = name_len((unsigned char *)(inbuf+4),inbuf_size - 4);
568 if (name_len1 <= 0 || name_len1 > inbuf_size - 4) {
569 DEBUG(0,("Invalid name length in session request\n"));
570 reply_called_name_not_present(outbuf);
571 break;
572 }
573 name_len2 = name_len((unsigned char *)(inbuf+4+name_len1),inbuf_size - 4 - name_len1);
574 if (name_len2 <= 0 || name_len2 > inbuf_size - 4 - name_len1) {
575 DEBUG(0,("Invalid name length in session request\n"));
576 reply_called_name_not_present(outbuf);
577 break;
578 }
579
580 name_type1 = name_extract((unsigned char *)inbuf,
581 inbuf_size,(unsigned int)4,name1);
582 name_type2 = name_extract((unsigned char *)inbuf,
583 inbuf_size,(unsigned int)(4 + name_len1),name2);
584
585 if (name_type1 == -1 || name_type2 == -1) {
586 DEBUG(0,("Invalid name type in session request\n"));
587 reply_called_name_not_present(outbuf);
588 break;
589 }
590
591 DEBUG(2,("netbios connect: name1=%s0x%x name2=%s0x%x\n",
592 name1, name_type1, name2, name_type2));
593
594 if (netbios_session_retarget(sconn, name1, name_type1)) {
595 exit_server_cleanly("retargeted client");
596 }
597
598 /*
599 * Windows NT/2k uses "*SMBSERVER" and XP uses
600 * "*SMBSERV" arrggg!!!
601 */
602 if (strequal(name1, "*SMBSERVER ")
603 || strequal(name1, "*SMBSERV ")) {
604 char *raddr;
605
606 raddr = tsocket_address_inet_addr_string(sconn->remote_address,
607 talloc_tos());
608 if (raddr == NULL) {
609 exit_server_cleanly("could not allocate raddr");
610 }
611
612 fstrcpy(name1, raddr);
613 }
614
615 set_local_machine_name(name1, True);
616 set_remote_machine_name(name2, True);
617
618 if (is_ipaddress(sconn->remote_hostname)) {
619 char *p = discard_const_p(char, sconn->remote_hostname);
620
621 talloc_free(p);
622
623 sconn->remote_hostname = talloc_strdup(sconn,
624 get_remote_machine_name());
625 if (sconn->remote_hostname == NULL) {
626 exit_server_cleanly("could not copy remote name");
627 }
628 sconn->conn->remote_hostname = sconn->remote_hostname;
629 }
630
631 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
632 get_local_machine_name(), get_remote_machine_name(),
633 name_type2));
634
635 if (name_type2 == 'R') {
636 /* We are being asked for a pathworks session ---
637 no thanks! */
638 reply_called_name_not_present(outbuf);
639 break;
640 }
641
642 reload_services(sconn, conn_snum_used, true);
643 reopen_logs();
644
645 sconn->nbt.got_session = true;
646 break;
647 }
648
649 case 0x89: /* session keepalive request
650 (some old clients produce this?) */
651 SCVAL(outbuf,0,NBSSkeepalive);
652 SCVAL(outbuf,3,0);
653 break;
654
655 case NBSSpositive: /* positive session response */
656 case NBSSnegative: /* negative session response */
657 case NBSSretarget: /* retarget session response */
658 DEBUG(0,("Unexpected session response\n"));
659 break;
660
661 case NBSSkeepalive: /* session keepalive */
662 default:
663 return;
664 }
665
666 DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
667 msg_type, msg_flags));
668
669 srv_send_smb(sconn, outbuf, false, 0, false, NULL);
670
671 if (CVAL(outbuf, 0) != 0x82) {
672 exit_server_cleanly("invalid netbios session");
673 }
674 return;
675 }
676
677 /****************************************************************************
678 Reply to a tcon.
679 conn POINTER CAN BE NULL HERE !
680 ****************************************************************************/
681
682 void reply_tcon(struct smb_request *req)
683 {
684 connection_struct *conn = req->conn;
685 const char *service;
686 char *service_buf = NULL;
687 char *password = NULL;
688 char *dev = NULL;
689 int pwlen=0;
690 NTSTATUS nt_status;
691 const char *p;
692 TALLOC_CTX *ctx = talloc_tos();
693 struct smbd_server_connection *sconn = req->sconn;
694 NTTIME now = timeval_to_nttime(&req->request_time);
695
696 START_PROFILE(SMBtcon);
697
698 if (req->buflen < 4) {
699 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
700 END_PROFILE(SMBtcon);
701 return;
702 }
703
704 p = (const char *)req->buf + 1;
705 p += srvstr_pull_req_talloc(ctx, req, &service_buf, p, STR_TERMINATE);
706 p += 1;
707 pwlen = srvstr_pull_req_talloc(ctx, req, &password, p, STR_TERMINATE);
708 p += pwlen+1;
709 p += srvstr_pull_req_talloc(ctx, req, &dev, p, STR_TERMINATE);
710 p += 1;
711
712 if (service_buf == NULL || password == NULL || dev == NULL) {
713 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
714 END_PROFILE(SMBtcon);
715 return;
716 }
717 p = strrchr_m(service_buf,'\\');
718 if (p) {
719 service = p+1;
720 } else {
721 service = service_buf;
722 }
723
724 conn = make_connection(sconn, now, service, dev,
725 req->vuid,&nt_status);
726 req->conn = conn;
727
728 if (!conn) {
729 reply_nterror(req, nt_status);
730 END_PROFILE(SMBtcon);
731 return;
732 }
733
734 reply_outbuf(req, 2, 0);
735 SSVAL(req->outbuf,smb_vwv0,sconn->smb1.negprot.max_recv);
736 SSVAL(req->outbuf,smb_vwv1,conn->cnum);
737 SSVAL(req->outbuf,smb_tid,conn->cnum);
738
739 DEBUG(3,("tcon service=%s cnum=%d\n",
740 service, conn->cnum));
741
742 END_PROFILE(SMBtcon);
743 return;
744 }
745
746 /****************************************************************************
747 Reply to a tcon and X.
748 conn POINTER CAN BE NULL HERE !
749 ****************************************************************************/
750
751 void reply_tcon_and_X(struct smb_request *req)
752 {
753 connection_struct *conn = req->conn;
754 const char *service = NULL;
755 TALLOC_CTX *ctx = talloc_tos();
756 /* what the cleint thinks the device is */
757 char *client_devicetype = NULL;
758 /* what the server tells the client the share represents */
759 const char *server_devicetype;
760 NTSTATUS nt_status;
761 int passlen;
762 char *path = NULL;
763 const char *p, *q;
764 uint16_t tcon_flags;
765 struct smbXsrv_session *session = NULL;
766 NTTIME now = timeval_to_nttime(&req->request_time);
767 bool session_key_updated = false;
768 uint16_t optional_support = 0;
769 struct smbd_server_connection *sconn = req->sconn;
770
771 START_PROFILE(SMBtconX);
772
773 if (req->wct < 4) {
774 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
775 END_PROFILE(SMBtconX);
776 return;
777 }
778
779 passlen = SVAL(req->vwv+3, 0);
780 tcon_flags = SVAL(req->vwv+2, 0);
781
782 /* we might have to close an old one */
783 if ((tcon_flags & TCONX_FLAG_DISCONNECT_TID) && conn) {
784 struct smbXsrv_tcon *tcon;
785 NTSTATUS status;
786
787 tcon = conn->tcon;
788 req->conn = NULL;
789 conn = NULL;
790
791 /*
792 * TODO: cancel all outstanding requests on the tcon
793 */
794 status = smbXsrv_tcon_disconnect(tcon, req->vuid);
795 if (!NT_STATUS_IS_OK(status)) {
796 DEBUG(0, ("reply_tcon_and_X: "
797 "smbXsrv_tcon_disconnect() failed: %s\n",
798 nt_errstr(status)));
799 /*
800 * If we hit this case, there is something completely
801 * wrong, so we better disconnect the transport connection.
802 */
803 END_PROFILE(SMBtconX);
804 exit_server(__location__ ": smbXsrv_tcon_disconnect failed");
805 return;
806 }
807
808 TALLOC_FREE(tcon);
809 }
810
811 if ((passlen > MAX_PASS_LEN) || (passlen >= req->buflen)) {
812 reply_force_doserror(req, ERRDOS, ERRbuftoosmall);
813 END_PROFILE(SMBtconX);
814 return;
815 }
816
817 if (sconn->smb1.negprot.encrypted_passwords) {
818 p = (const char *)req->buf + passlen;
819 } else {
820 p = (const char *)req->buf + passlen + 1;
821 }
822
823 p += srvstr_pull_req_talloc(ctx, req, &path, p, STR_TERMINATE);
824
825 if (path == NULL) {
826 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
827 END_PROFILE(SMBtconX);
828 return;
829 }
830
831 /*
832 * the service name can be either: \\server\share
833 * or share directly like on the DELL PowerVault 705
834 */
835 if (*path=='\\') {
836 q = strchr_m(path+2,'\\');
837 if (!q) {
838 reply_nterror(req, NT_STATUS_BAD_NETWORK_NAME);
839 END_PROFILE(SMBtconX);
840 return;
841 }
842 service = q+1;
843 } else {
844 service = path;
845 }
846
847 p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
848 &client_devicetype, p,
849 MIN(6, smbreq_bufrem(req, p)), STR_ASCII);
850
851 if (client_devicetype == NULL) {
852 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
853 END_PROFILE(SMBtconX);
854 return;
855 }
856
857 DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
858
859 nt_status = smb1srv_session_lookup(req->sconn->conn,
860 req->vuid, now, &session);
861 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_USER_SESSION_DELETED)) {
862 reply_force_doserror(req, ERRSRV, ERRbaduid);
863 END_PROFILE(SMBtconX);
864 return;
865 }
866 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NETWORK_SESSION_EXPIRED)) {
867 reply_nterror(req, nt_status);
868 END_PROFILE(SMBtconX);
869 return;
870 }
871 if (!NT_STATUS_IS_OK(nt_status)) {
872 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
873 END_PROFILE(SMBtconX);
874 return;
875 }
876
877 if (session->global->auth_session_info == NULL) {
878 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
879 END_PROFILE(SMBtconX);
880 return;
881 }
882
883 /*
884 * If there is no application key defined yet
885 * we create one.
886 *
887 * This means we setup the application key on the
888 * first tcon that happens via the given session.
889 *
890 * Once the application key is defined, it does not
891 * change any more.
892 */
893 if (session->global->application_key.length == 0 &&
894 session->global->signing_key.length > 0)
895 {
896 struct smbXsrv_session *x = session;
897 struct auth_session_info *session_info =
898 session->global->auth_session_info;
899 uint8_t session_key[16];
900
901 ZERO_STRUCT(session_key);
902 memcpy(session_key, x->global->signing_key.data,
903 MIN(x->global->signing_key.length, sizeof(session_key)));
904
905 /*
906 * The application key is truncated/padded to 16 bytes
907 */
908 x->global->application_key = data_blob_talloc(x->global,
909 session_key,
910 sizeof(session_key));
911 ZERO_STRUCT(session_key);
912 if (x->global->application_key.data == NULL) {
913 reply_nterror(req, NT_STATUS_NO_MEMORY);
914 END_PROFILE(SMBtconX);
915 return;
916 }
917
918 if (tcon_flags & TCONX_FLAG_EXTENDED_SIGNATURES) {
919 smb_key_derivation(x->global->application_key.data,
920 x->global->application_key.length,
921 x->global->application_key.data);
922 optional_support |= SMB_EXTENDED_SIGNATURES;
923 }
924
925 /*
926 * Place the application key into the session_info
927 */
928 data_blob_clear_free(&session_info->session_key);
929 session_info->session_key = data_blob_dup_talloc(session_info,
930 x->global->application_key);
931 if (session_info->session_key.data == NULL) {
932 data_blob_clear_free(&x->global->application_key);
933 reply_nterror(req, NT_STATUS_NO_MEMORY);
934 END_PROFILE(SMBtconX);
935 return;
936 }
937 session_key_updated = true;
938 }
939
940 conn = make_connection(sconn, now, service, client_devicetype,
941 req->vuid, &nt_status);
942 req->conn =conn;
943
944 if (!conn) {
945 if (session_key_updated) {
946 struct smbXsrv_session *x = session;
947 struct auth_session_info *session_info =
948 session->global->auth_session_info;
949 data_blob_clear_free(&x->global->application_key);
950 data_blob_clear_free(&session_info->session_key);
951 }
952 reply_nterror(req, nt_status);
953 END_PROFILE(SMBtconX);
954 return;
955 }
956
957 if ( IS_IPC(conn) )
958 server_devicetype = "IPC";
959 else if ( IS_PRINT(conn) )
960 server_devicetype = "LPT1:";
961 else
962 server_devicetype = "A:";
963
964 if (get_Protocol() < PROTOCOL_NT1) {
965 reply_outbuf(req, 2, 0);
966 if (message_push_string(&req->outbuf, server_devicetype,
967 STR_TERMINATE|STR_ASCII) == -1) {
968 reply_nterror(req, NT_STATUS_NO_MEMORY);
969 END_PROFILE(SMBtconX);
970 return;
971 }
972 } else {
973 /* NT sets the fstype of IPC$ to the null string */
974 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(ctx, SNUM(conn));
975
976 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
977 /* Return permissions. */
978 uint32 perm1 = 0;
979 uint32 perm2 = 0;
980
981 reply_outbuf(req, 7, 0);
982
983 if (IS_IPC(conn)) {
984 perm1 = FILE_ALL_ACCESS;
985 perm2 = FILE_ALL_ACCESS;
986 } else {
987 perm1 = conn->share_access;
988 }
989
990 SIVAL(req->outbuf, smb_vwv3, perm1);
991 SIVAL(req->outbuf, smb_vwv5, perm2);
992 } else {
993 reply_outbuf(req, 3, 0);
994 }
995
996 if ((message_push_string(&req->outbuf, server_devicetype,
997 STR_TERMINATE|STR_ASCII) == -1)
998 || (message_push_string(&req->outbuf, fstype,
999 STR_TERMINATE) == -1)) {
1000 reply_nterror(req, NT_STATUS_NO_MEMORY);
1001 END_PROFILE(SMBtconX);
1002 return;
1003 }
1004
1005 /* what does setting this bit do? It is set by NT4 and
1006 may affect the ability to autorun mounted cdroms */
1007 optional_support |= SMB_SUPPORT_SEARCH_BITS;
1008 optional_support |=
1009 (lp_csc_policy(SNUM(conn)) << SMB_CSC_POLICY_SHIFT);
1010
1011 if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {
1012 DEBUG(2,("Serving %s as a Dfs root\n",
1013 lp_servicename(ctx, SNUM(conn)) ));
1014 optional_support |= SMB_SHARE_IN_DFS;
1015 }
1016
1017 SSVAL(req->outbuf, smb_vwv2, optional_support);
1018 }
1019
1020 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
1021 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
1022
1023 DEBUG(3,("tconX service=%s \n",
1024 service));
1025
1026 /* set the incoming and outgoing tid to the just created one */
1027 SSVAL(discard_const_p(uint8_t, req->inbuf),smb_tid,conn->cnum);
1028 SSVAL(req->outbuf,smb_tid,conn->cnum);
1029
1030 END_PROFILE(SMBtconX);
1031
1032 req->tid = conn->cnum;
1033 }
1034
1035 /****************************************************************************
1036 Reply to an unknown type.
1037 ****************************************************************************/
1038
1039 void reply_unknown_new(struct smb_request *req, uint8 type)
1040 {
1041 DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
1042 smb_fn_name(type), type, type));
1043 reply_force_doserror(req, ERRSRV, ERRunknownsmb);
1044 return;
1045 }
1046
1047 /****************************************************************************
1048 Reply to an ioctl.
1049 conn POINTER CAN BE NULL HERE !
1050 ****************************************************************************/
1051
1052 void reply_ioctl(struct smb_request *req)
1053 {
1054 connection_struct *conn = req->conn;
1055 uint16 device;
1056 uint16 function;
1057 uint32 ioctl_code;
1058 int replysize;
1059 char *p;
1060
1061 START_PROFILE(SMBioctl);
1062
1063 if (req->wct < 3) {
1064 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1065 END_PROFILE(SMBioctl);
1066 return;
1067 }
1068
1069 device = SVAL(req->vwv+1, 0);
1070 function = SVAL(req->vwv+2, 0);
1071 ioctl_code = (device << 16) + function;
1072
1073 DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
1074
1075 switch (ioctl_code) {
1076 case IOCTL_QUERY_JOB_INFO:
1077 replysize = 32;
1078 break;
1079 default:
1080 reply_force_doserror(req, ERRSRV, ERRnosupport);
1081 END_PROFILE(SMBioctl);
1082 return;
1083 }
1084
1085 reply_outbuf(req, 8, replysize+1);
1086 SSVAL(req->outbuf,smb_vwv1,replysize); /* Total data bytes returned */
1087 SSVAL(req->outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
1088 SSVAL(req->outbuf,smb_vwv6,52); /* Offset to data */
1089 p = smb_buf(req->outbuf);
1090 memset(p, '\0', replysize+1); /* valgrind-safe. */
1091 p += 1; /* Allow for alignment */
1092
1093 switch (ioctl_code) {
1094 case IOCTL_QUERY_JOB_INFO:
1095 {
1096 files_struct *fsp = file_fsp(
1097 req, SVAL(req->vwv+0, 0));
1098 if (!fsp) {
1099 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
1100 END_PROFILE(SMBioctl);
1101 return;
1102 }
1103 /* Job number */
1104 SSVAL(p, 0, print_spool_rap_jobid(fsp->print_file));
1105
1106 srvstr_push((char *)req->outbuf, req->flags2, p+2,
1107 lp_netbios_name(), 15,
1108 STR_TERMINATE|STR_ASCII);
1109 if (conn) {
1110 srvstr_push((char *)req->outbuf, req->flags2,
1111 p+18,
1112 lp_servicename(talloc_tos(),
1113 SNUM(conn)),
1114 13, STR_TERMINATE|STR_ASCII);
1115 } else {
1116 memset(p+18, 0, 13);
1117 }
1118 break;
1119 }
1120 }
1121
1122 END_PROFILE(SMBioctl);
1123 return;
1124 }
1125
1126 /****************************************************************************
1127 Strange checkpath NTSTATUS mapping.
1128 ****************************************************************************/
1129
1130 static NTSTATUS map_checkpath_error(uint16_t flags2, NTSTATUS status)
1131 {
1132 /* Strange DOS error code semantics only for checkpath... */
1133 if (!(flags2 & FLAGS2_32_BIT_ERROR_CODES)) {
1134 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
1135 /* We need to map to ERRbadpath */
1136 return NT_STATUS_OBJECT_PATH_NOT_FOUND;
1137 }
1138 }
1139 return status;
1140 }
1141
1142 /****************************************************************************
1143 Reply to a checkpath.
1144 ****************************************************************************/
1145
1146 void reply_checkpath(struct smb_request *req)
1147 {
1148 connection_struct *conn = req->conn;
1149 struct smb_filename *smb_fname = NULL;
1150 char *name = NULL;
1151 NTSTATUS status;
1152 TALLOC_CTX *ctx = talloc_tos();
1153
1154 START_PROFILE(SMBcheckpath);
1155
1156 srvstr_get_path_req(ctx, req, &name, (const char *)req->buf + 1,
1157 STR_TERMINATE, &status);
1158
1159 if (!NT_STATUS_IS_OK(status)) {
1160 status = map_checkpath_error(req->flags2, status);
1161 reply_nterror(req, status);
1162 END_PROFILE(SMBcheckpath);
1163 return;
1164 }
1165
1166 DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->vwv+0, 0)));
1167
1168 status = filename_convert(ctx,
1169 conn,
1170 req->flags2 & FLAGS2_DFS_PATHNAMES,
1171 name,
1172 0,
1173 NULL,
1174 &smb_fname);
1175
1176 if (!NT_STATUS_IS_OK(status)) {
1177 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1178 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1179 ERRSRV, ERRbadpath);
1180 END_PROFILE(SMBcheckpath);
1181 return;
1182 }
1183 goto path_err;
1184 }
1185
1186 if (!VALID_STAT(smb_fname->st) &&
1187 (SMB_VFS_STAT(conn, smb_fname) != 0)) {
1188 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",
1189 smb_fname_str_dbg(smb_fname), strerror(errno)));
1190 status = map_nt_error_from_unix(errno);
1191 goto path_err;
1192 }
1193
1194 if (!S_ISDIR(smb_fname->st.st_ex_mode)) {
1195 reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
1196 ERRDOS, ERRbadpath);
1197 goto out;
1198 }
1199
1200 reply_outbuf(req, 0, 0);
1201
1202 path_err:
1203 /* We special case this - as when a Windows machine
1204 is parsing a path is steps through the components
1205 one at a time - if a component fails it expects
1206 ERRbadpath, not ERRbadfile.
1207 */
1208 status = map_checkpath_error(req->flags2, status);
1209 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
1210 /*
1211 * Windows returns different error codes if
1212 * the parent directory is valid but not the
1213 * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
1214 * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
1215 * if the path is invalid.
1216 */
1217 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
1218 ERRDOS, ERRbadpath);
1219 goto out;
1220 }
1221
1222 reply_nterror(req, status);
1223
1224 out:
1225 TALLOC_FREE(smb_fname);
1226 END_PROFILE(SMBcheckpath);
1227 return;
1228 }
1229
1230 /****************************************************************************
1231 Reply to a getatr.
1232 ****************************************************************************/
1233
1234 void reply_getatr(struct smb_request *req)
1235 {
1236 connection_struct *conn = req->conn;
1237 struct smb_filename *smb_fname = NULL;
1238 char *fname = NULL;
1239 int mode=0;
1240 off_t size=0;
1241 time_t mtime=0;
1242 const char *p;
1243 NTSTATUS status;
1244 TALLOC_CTX *ctx = talloc_tos();
1245 bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1246
1247 START_PROFILE(SMBgetatr);
1248
1249 p = (const char *)req->buf + 1;
1250 p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1251 if (!NT_STATUS_IS_OK(status)) {
1252 reply_nterror(req, status);
1253 goto out;
1254 }
1255
1256 /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
1257 under WfWg - weird! */
1258 if (*fname == '\0') {
1259 mode = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_DIRECTORY;
1260 if (!CAN_WRITE(conn)) {
1261 mode |= FILE_ATTRIBUTE_READONLY;
1262 }
1263 size = 0;
1264 mtime = 0;
1265 } else {
1266 status = filename_convert(ctx,
1267 conn,
1268 req->flags2 & FLAGS2_DFS_PATHNAMES,
1269 fname,
1270 0,
1271 NULL,
1272 &smb_fname);
1273 if (!NT_STATUS_IS_OK(status)) {
1274 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1275 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1276 ERRSRV, ERRbadpath);
1277 goto out;
1278 }
1279 reply_nterror(req, status);
1280 goto out;
1281 }
1282 if (!VALID_STAT(smb_fname->st) &&
1283 (SMB_VFS_STAT(conn, smb_fname) != 0)) {
1284 DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",
1285 smb_fname_str_dbg(smb_fname),
1286 strerror(errno)));
1287 reply_nterror(req, map_nt_error_from_unix(errno));
1288 goto out;
1289 }
1290
1291 mode = dos_mode(conn, smb_fname);
1292 size = smb_fname->st.st_ex_size;
1293
1294 if (ask_sharemode) {
1295 struct timespec write_time_ts;
1296 struct file_id fileid;
1297
1298 ZERO_STRUCT(write_time_ts);
1299 fileid = vfs_file_id_from_sbuf(conn, &smb_fname->st);
1300 get_file_infos(fileid, 0, NULL, &write_time_ts);
1301 if (!null_timespec(write_time_ts)) {
1302 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1303 }
1304 }
1305
1306 mtime = convert_timespec_to_time_t(smb_fname->st.st_ex_mtime);
1307 if (mode & FILE_ATTRIBUTE_DIRECTORY) {
1308 size = 0;
1309 }
1310 }
1311
1312 reply_outbuf(req, 10, 0);
1313
1314 SSVAL(req->outbuf,smb_vwv0,mode);
1315 if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1316 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
1317 } else {
1318 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
1319 }
1320 SIVAL(req->outbuf,smb_vwv3,(uint32)size);
1321
1322 if (get_Protocol() >= PROTOCOL_NT1) {
1323 SSVAL(req->outbuf, smb_flg2,
1324 SVAL(req->outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
1325 }
1326
1327 DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n",
1328 smb_fname_str_dbg(smb_fname), mode, (unsigned int)size));
1329
1330 out:
1331 TALLOC_FREE(smb_fname);
1332 TALLOC_FREE(fname);
1333 END_PROFILE(SMBgetatr);
1334 return;
1335 }
1336
1337 /****************************************************************************
1338 Reply to a setatr.
1339 ****************************************************************************/
1340
1341 void reply_setatr(struct smb_request *req)
1342 {
1343 struct smb_file_time ft;
1344 connection_struct *conn = req->conn;
1345 struct smb_filename *smb_fname = NULL;
1346 char *fname = NULL;
1347 int mode;
1348 time_t mtime;
1349 const char *p;
1350 NTSTATUS status;
1351 TALLOC_CTX *ctx = talloc_tos();
1352
1353 START_PROFILE(SMBsetatr);
1354
1355 ZERO_STRUCT(ft);
1356
1357 if (req->wct < 2) {
1358 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1359 goto out;
1360 }
1361
1362 p = (const char *)req->buf + 1;
1363 p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1364 if (!NT_STATUS_IS_OK(status)) {
1365 reply_nterror(req, status);
1366 goto out;
1367 }
1368
1369 status = filename_convert(ctx,
1370 conn,
1371 req->flags2 & FLAGS2_DFS_PATHNAMES,
1372 fname,
1373 0,
1374 NULL,
1375 &smb_fname);
1376 if (!NT_STATUS_IS_OK(status)) {
1377 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1378 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1379 ERRSRV, ERRbadpath);
1380 goto out;
1381 }
1382 reply_nterror(req, status);
1383 goto out;
1384 }
1385
1386 if (smb_fname->base_name[0] == '.' &&
1387 smb_fname->base_name[1] == '\0') {
1388 /*
1389 * Not sure here is the right place to catch this
1390 * condition. Might be moved to somewhere else later -- vl
1391 */
1392 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1393 goto out;
1394 }
1395
1396 mode = SVAL(req->vwv+0, 0);
1397 mtime = srv_make_unix_date3(req->vwv+1);
1398
1399 if (mode != FILE_ATTRIBUTE_NORMAL) {
1400 if (VALID_STAT_OF_DIR(smb_fname->st))
1401 mode |= FILE_ATTRIBUTE_DIRECTORY;
1402 else
1403 mode &= ~FILE_ATTRIBUTE_DIRECTORY;
1404
1405 status = check_access(conn, NULL, smb_fname,
1406 FILE_WRITE_ATTRIBUTES);
1407 if (!NT_STATUS_IS_OK(status)) {
1408 reply_nterror(req, status);
1409 goto out;
1410 }
1411
1412 if (file_set_dosmode(conn, smb_fname, mode, NULL,
1413 false) != 0) {
1414 reply_nterror(req, map_nt_error_from_unix(errno));
1415 goto out;
1416 }
1417 }
1418
1419 ft.mtime = convert_time_t_to_timespec(mtime);
1420 status = smb_set_file_time(conn, NULL, smb_fname, &ft, true);
1421 if (!NT_STATUS_IS_OK(status)) {
1422 reply_nterror(req, status);
1423 goto out;
1424 }
1425
1426 reply_outbuf(req, 0, 0);
1427
1428 DEBUG(3, ("setatr name=%s mode=%d\n", smb_fname_str_dbg(smb_fname),
1429 mode));
1430 out:
1431 TALLOC_FREE(smb_fname);
1432 END_PROFILE(SMBsetatr);
1433 return;
1434 }
1435
1436 /****************************************************************************
1437 Reply to a dskattr.
1438 ****************************************************************************/
1439
1440 void reply_dskattr(struct smb_request *req)
1441 {
1442 connection_struct *conn = req->conn;
1443 uint64_t dfree,dsize,bsize;
1444 START_PROFILE(SMBdskattr);
1445
1446 if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (uint64_t)-1) {
1447 reply_nterror(req, map_nt_error_from_unix(errno));
1448 END_PROFILE(SMBdskattr);
1449 return;
1450 }
1451
1452 reply_outbuf(req, 5, 0);
1453
1454 if (get_Protocol() <= PROTOCOL_LANMAN2) {
1455 double total_space, free_space;
1456 /* we need to scale this to a number that DOS6 can handle. We
1457 use floating point so we can handle large drives on systems
1458 that don't have 64 bit integers
1459
1460 we end up displaying a maximum of 2G to DOS systems
1461 */
1462 total_space = dsize * (double)bsize;
1463 free_space = dfree * (double)bsize;
1464
1465 dsize = (uint64_t)((total_space+63*512) / (64*512));
1466 dfree = (uint64_t)((free_space+63*512) / (64*512));
1467
1468 if (dsize > 0xFFFF) dsize = 0xFFFF;
1469 if (dfree > 0xFFFF) dfree = 0xFFFF;
1470
1471 SSVAL(req->outbuf,smb_vwv0,dsize);
1472 SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1473 SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1474 SSVAL(req->outbuf,smb_vwv3,dfree);
1475 } else {
1476 SSVAL(req->outbuf,smb_vwv0,dsize);
1477 SSVAL(req->outbuf,smb_vwv1,bsize/512);
1478 SSVAL(req->outbuf,smb_vwv2,512);
1479 SSVAL(req->outbuf,smb_vwv3,dfree);
1480 }
1481
1482 DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1483
1484 END_PROFILE(SMBdskattr);
1485 return;
1486 }
1487
1488 /*
1489 * Utility function to split the filename from the directory.
1490 */
1491 static NTSTATUS split_fname_dir_mask(TALLOC_CTX *ctx, const char *fname_in,
1492 char **fname_dir_out,
1493 char **fname_mask_out)
1494 {
1495 const char *p = NULL;
1496 char *fname_dir = NULL;
1497 char *fname_mask = NULL;
1498
1499 p = strrchr_m(fname_in, '/');
1500 if (!p) {
1501 fname_dir = talloc_strdup(ctx, ".");
1502 fname_mask = talloc_strdup(ctx, fname_in);
1503 } else {
1504 fname_dir = talloc_strndup(ctx, fname_in,
1505 PTR_DIFF(p, fname_in));
1506 fname_mask = talloc_strdup(ctx, p+1);
1507 }
1508
1509 if (!fname_dir || !fname_mask) {
1510 TALLOC_FREE(fname_dir);
1511 TALLOC_FREE(fname_mask);
1512 return NT_STATUS_NO_MEMORY;
1513 }
1514
1515 *fname_dir_out = fname_dir;
1516 *fname_mask_out = fname_mask;
1517 return NT_STATUS_OK;
1518 }
1519
1520 /****************************************************************************
1521 Reply to a search.
1522 Can be called from SMBsearch, SMBffirst or SMBfunique.
1523 ****************************************************************************/
1524
1525 void reply_search(struct smb_request *req)
1526 {
1527 connection_struct *conn = req->conn;
1528 char *path = NULL;
1529 const char *mask = NULL;
1530 char *directory = NULL;
1531 struct smb_filename *smb_fname = NULL;
1532 char *fname = NULL;
1533 off_t size;
1534 uint32 mode;
1535 struct timespec date;
1536 uint32 dirtype;
1537 unsigned int numentries = 0;
1538 unsigned int maxentries = 0;
1539 bool finished = False;
1540 const char *p;
1541 int status_len;
1542 char status[21];
1543 int dptr_num= -1;
1544 bool check_descend = False;
1545 bool expect_close = False;
1546 NTSTATUS nt_status;
1547 bool mask_contains_wcard = False;
1548 bool allow_long_path_components = (req->flags2 & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1549 TALLOC_CTX *ctx = talloc_tos();
1550 bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1551 struct dptr_struct *dirptr = NULL;
1552 struct smbd_server_connection *sconn = req->sconn;
1553
1554 START_PROFILE(SMBsearch);
1555
1556 if (req->wct < 2) {
1557 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1558 goto out;
1559 }
1560
1561 if (lp_posix_pathnames()) {
1562 reply_unknown_new(req, req->cmd);
1563 goto out;
1564 }
1565
1566 /* If we were called as SMBffirst then we must expect close. */
1567 if(req->cmd == SMBffirst) {
1568 expect_close = True;
1569 }
1570
1571 reply_outbuf(req, 1, 3);
1572 maxentries = SVAL(req->vwv+0, 0);
1573 dirtype = SVAL(req->vwv+1, 0);
1574 p = (const char *)req->buf + 1;
1575 p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1576 &nt_status, &mask_contains_wcard);
1577 if (!NT_STATUS_IS_OK(nt_status)) {
1578 reply_nterror(req, nt_status);
1579 goto out;
1580 }
1581
1582 p++;
1583 status_len = SVAL(p, 0);
1584 p += 2;
1585
1586 /* dirtype &= ~FILE_ATTRIBUTE_DIRECTORY; */
1587
1588 if (status_len == 0) {
1589 nt_status = filename_convert(ctx, conn,
1590 req->flags2 & FLAGS2_DFS_PATHNAMES,
1591 path,
1592 UCF_ALWAYS_ALLOW_WCARD_LCOMP,
1593 &mask_contains_wcard,
1594 &smb_fname);
1595 if (!NT_STATUS_IS_OK(nt_status)) {
1596 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1597 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1598 ERRSRV, ERRbadpath);
1599 goto out;
1600 }
1601 reply_nterror(req, nt_status);
1602 goto out;
1603 }
1604
1605 directory = smb_fname->base_name;
1606
1607 p = strrchr_m(directory,'/');
1608 if ((p != NULL) && (*directory != '/')) {
1609 mask = p + 1;
1610 directory = talloc_strndup(ctx, directory,
1611 PTR_DIFF(p, directory));
1612 } else {
1613 mask = directory;
1614 directory = talloc_strdup(ctx,".");
1615 }
1616
1617 if (!directory) {
1618 reply_nterror(req, NT_STATUS_NO_MEMORY);
1619 goto out;
1620 }
1621
1622 memset((char *)status,'\0',21);
1623 SCVAL(status,0,(dirtype & 0x1F));
1624
1625 nt_status = dptr_create(conn,
1626 NULL, /* req */
1627 NULL, /* fsp */
1628 directory,
1629 True,
1630 expect_close,
1631 req->smbpid,
1632 mask,
1633 mask_contains_wcard,
1634 dirtype,
1635 &dirptr);
1636 if (!NT_STATUS_IS_OK(nt_status)) {
1637 reply_nterror(req, nt_status);
1638 goto out;
1639 }
1640 dptr_num = dptr_dnum(dirptr);
1641 } else {
1642 int status_dirtype;
1643 const char *dirpath;
1644
1645 memcpy(status,p,21);
1646 status_dirtype = CVAL(status,0) & 0x1F;
1647 if (status_dirtype != (dirtype & 0x1F)) {
1648 dirtype = status_dirtype;
1649 }
1650
1651 dirptr = dptr_fetch(sconn, status+12,&dptr_num);
1652 if (!dirptr) {
1653 goto SearchEmpty;
1654 }
1655 dirpath = dptr_path(sconn, dptr_num);
1656 directory = talloc_strdup(ctx, dirpath);
1657 if (!directory) {
1658 reply_nterror(req, NT_STATUS_NO_MEMORY);
1659 goto out;
1660 }
1661
1662 mask = dptr_wcard(sconn, dptr_num);
1663 if (!mask) {
1664 goto SearchEmpty;
1665 }
1666 /*
1667 * For a 'continue' search we have no string. So
1668 * check from the initial saved string.
1669 */
1670 mask_contains_wcard = ms_has_wild(mask);
1671 dirtype = dptr_attr(sconn, dptr_num);
1672 }
1673
1674 DEBUG(4,("dptr_num is %d\n",dptr_num));
1675
1676 /* Initialize per SMBsearch/SMBffirst/SMBfunique operation data */
1677 dptr_init_search_op(dirptr);
1678
1679 if ((dirtype&0x1F) == FILE_ATTRIBUTE_VOLUME) {
1680 char buf[DIR_STRUCT_SIZE];
1681 memcpy(buf,status,21);
1682 if (!make_dir_struct(ctx,buf,"???????????",volume_label(ctx, SNUM(conn)),
1683 0,FILE_ATTRIBUTE_VOLUME,0,!allow_long_path_components)) {
1684 reply_nterror(req, NT_STATUS_NO_MEMORY);
1685 goto out;
1686 }
1687 dptr_fill(sconn, buf+12,dptr_num);
1688 if (dptr_zero(buf+12) && (status_len==0)) {
1689 numentries = 1;
1690 } else {
1691 numentries = 0;
1692 }
1693 if (message_push_blob(&req->outbuf,
1694 data_blob_const(buf, sizeof(buf)))
1695 == -1) {
1696 reply_nterror(req, NT_STATUS_NO_MEMORY);
1697 goto out;
1698 }
1699 } else {
1700 unsigned int i;
1701 maxentries = MIN(
1702 maxentries,
1703 ((BUFFER_SIZE -
1704 ((uint8 *)smb_buf(req->outbuf) + 3 - req->outbuf))
1705 /DIR_STRUCT_SIZE));
1706
1707 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1708 directory,lp_dontdescend(ctx, SNUM(conn))));
1709 if (in_list(directory, lp_dontdescend(ctx, SNUM(conn)),True)) {
1710 check_descend = True;
1711 }
1712
1713 for (i=numentries;(i<maxentries) && !finished;i++) {
1714 finished = !get_dir_entry(ctx,
1715 dirptr,
1716 mask,
1717 dirtype,
1718 &fname,
1719 &size,
1720 &mode,
1721 &date,
1722 check_descend,
1723 ask_sharemode);
1724 if (!finished) {
1725 char buf[DIR_STRUCT_SIZE];
1726 memcpy(buf,status,21);
1727 if (!make_dir_struct(ctx,
1728 buf,
1729 mask,
1730 fname,
1731 size,
1732 mode,
1733 convert_timespec_to_time_t(date),
1734 !allow_long_path_components)) {
1735 reply_nterror(req, NT_STATUS_NO_MEMORY);
1736 goto out;
1737 }
1738 if (!dptr_fill(sconn, buf+12,dptr_num)) {
1739 break;
1740 }
1741 if (message_push_blob(&req->outbuf,
1742 data_blob_const(buf, sizeof(buf)))
1743 == -1) {
1744 reply_nterror(req, NT_STATUS_NO_MEMORY);
1745 goto out;
1746 }
1747 numentries++;
1748 }
1749 }
1750 }
1751
1752 SearchEmpty:
1753
1754 /* If we were called as SMBffirst with smb_search_id == NULL
1755 and no entries were found then return error and close dirptr
1756 (X/Open spec) */
1757
1758 if (numentries == 0) {
1759 dptr_close(sconn, &dptr_num);
1760 } else if(expect_close && status_len == 0) {
1761 /* Close the dptr - we know it's gone */
1762 dptr_close(sconn, &dptr_num);
1763 }
1764
1765 /* If we were called as SMBfunique, then we can close the dirptr now ! */
1766 if(dptr_num >= 0 && req->cmd == SMBfunique) {
1767 dptr_close(sconn, &dptr_num);
1768 }
1769
1770 if ((numentries == 0) && !mask_contains_wcard) {
1771 reply_botherror(req, STATUS_NO_MORE_FILES, ERRDOS, ERRnofiles);
1772 goto out;
1773 }
1774
1775 SSVAL(req->outbuf,smb_vwv0,numentries);
1776 SSVAL(req->outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1777 SCVAL(smb_buf(req->outbuf),0,5);
1778 SSVAL(smb_buf(req->outbuf),1,numentries*DIR_STRUCT_SIZE);
1779
1780 /* The replies here are never long name. */
1781 SSVAL(req->outbuf, smb_flg2,
1782 SVAL(req->outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1783 if (!allow_long_path_components) {
1784 SSVAL(req->outbuf, smb_flg2,
1785 SVAL(req->outbuf, smb_flg2)
1786 & (~FLAGS2_LONG_PATH_COMPONENTS));
1787 }
1788
1789 /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1790 SSVAL(req->outbuf, smb_flg2,
1791 (SVAL(req->outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1792
1793 DEBUG(4,("%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1794 smb_fn_name(req->cmd),
1795 mask,
1796 directory,
1797 dirtype,
1798 numentries,
1799 maxentries ));
1800 out:
1801 TALLOC_FREE(directory);
1802 TALLOC_FREE(smb_fname);
1803 END_PROFILE(SMBsearch);
1804 return;
1805 }
1806
1807 /****************************************************************************
1808 Reply to a fclose (stop directory search).
1809 ****************************************************************************/
1810
1811 void reply_fclose(struct smb_request *req)
1812 {
1813 int status_len;
1814 char status[21];
1815 int dptr_num= -2;
1816 const char *p;
1817 char *path = NULL;
1818 NTSTATUS err;
1819 bool path_contains_wcard = False;
1820 TALLOC_CTX *ctx = talloc_tos();
1821 struct smbd_server_connection *sconn = req->sconn;
1822
1823 START_PROFILE(SMBfclose);
1824
1825 if (lp_posix_pathnames()) {
1826 reply_unknown_new(req, req->cmd);
1827 END_PROFILE(SMBfclose);
1828 return;
1829 }
1830
1831 p = (const char *)req->buf + 1;
1832 p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1833 &err, &path_contains_wcard);
1834 if (!NT_STATUS_IS_OK(err)) {
1835 reply_nterror(req, err);
1836 END_PROFILE(SMBfclose);
1837 return;
1838 }
1839 p++;
1840 status_len = SVAL(p,0);
1841 p += 2;
1842
1843 if (status_len == 0) {
1844 reply_force_doserror(req, ERRSRV, ERRsrverror);
1845 END_PROFILE(SMBfclose);
1846 return;
1847 }
1848
1849 memcpy(status,p,21);
1850
1851 if(dptr_fetch(sconn, status+12,&dptr_num)) {
1852 /* Close the dptr - we know it's gone */
1853 dptr_close(sconn, &dptr_num);
1854 }
1855
1856 reply_outbuf(req, 1, 0);
1857 SSVAL(req->outbuf,smb_vwv0,0);
1858
1859 DEBUG(3,("search close\n"));
1860
1861 END_PROFILE(SMBfclose);
1862 return;
1863 }
1864
1865 /****************************************************************************
1866 Reply to an open.
1867 ****************************************************************************/
1868
1869 void reply_open(struct smb_request *req)
1870 {
1871 connection_struct *conn = req->conn;
1872 struct smb_filename *smb_fname = NULL;
1873 char *fname = NULL;
1874 uint32 fattr=0;
1875 off_t size = 0;
1876 time_t mtime=0;
1877 int info;
1878 files_struct *fsp;
1879 int oplock_request;
1880 int deny_mode;
1881 uint32 dos_attr;
1882 uint32 access_mask;
1883 uint32 share_mode;
1884 uint32 create_disposition;
1885 uint32 create_options = 0;
1886 uint32_t private_flags = 0;
1887 NTSTATUS status;
1888 bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1889 TALLOC_CTX *ctx = talloc_tos();
1890
1891 START_PROFILE(SMBopen);
1892
1893 if (req->wct < 2) {
1894 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1895 goto out;
1896 }
1897
1898 oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1899 deny_mode = SVAL(req->vwv+0, 0);
1900 dos_attr = SVAL(req->vwv+1, 0);
1901
1902 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
1903 STR_TERMINATE, &status);
1904 if (!NT_STATUS_IS_OK(status)) {
1905 reply_nterror(req, status);
1906 goto out;
1907 }
1908
1909 status = filename_convert(ctx,
1910 conn,
1911 req->flags2 & FLAGS2_DFS_PATHNAMES,
1912 fname,
1913 0,
1914 NULL,
1915 &smb_fname);
1916 if (!NT_STATUS_IS_OK(status)) {
1917 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1918 reply_botherror(req,
1919 NT_STATUS_PATH_NOT_COVERED,
1920 ERRSRV, ERRbadpath);
1921 goto out;
1922 }
1923 reply_nterror(req, status);
1924 goto out;
1925 }
1926
1927 if (!map_open_params_to_ntcreate(smb_fname->base_name, deny_mode,
1928 OPENX_FILE_EXISTS_OPEN, &access_mask,
1929 &share_mode, &create_disposition,
1930 &create_options, &private_flags)) {
1931 reply_force_doserror(req, ERRDOS, ERRbadaccess);
1932 goto out;
1933 }
1934
1935 status = SMB_VFS_CREATE_FILE(
1936 conn, /* conn */
1937 req, /* req */
1938 0, /* root_dir_fid */
1939 smb_fname, /* fname */
1940 access_mask, /* access_mask */
1941 share_mode, /* share_access */
1942 create_disposition, /* create_disposition*/
1943 create_options, /* create_options */
1944 dos_attr, /* file_attributes */
1945 oplock_request, /* oplock_request */
1946 0, /* allocation_size */
1947 private_flags,
1948 NULL, /* sd */
1949 NULL, /* ea_list */
1950 &fsp, /* result */
1951 &info); /* pinfo */
1952
1953 if (!NT_STATUS_IS_OK(status)) {
1954 if (open_was_deferred(req->sconn, req->mid)) {
1955 /* We have re-scheduled this call. */
1956 goto out;
1957 }
1958 reply_openerror(req, status);
1959 goto out;
1960 }
1961
1962 size = smb_fname->st.st_ex_size;
1963 fattr = dos_mode(conn, smb_fname);
1964
1965 /* Deal with other possible opens having a modified
1966 write time. JRA. */
1967 if (ask_sharemode) {
1968 struct timespec write_time_ts;
1969
1970 ZERO_STRUCT(write_time_ts);
1971 get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1972 if (!null_timespec(write_time_ts)) {
1973 update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1974 }
1975 }
1976
1977 mtime = convert_timespec_to_time_t(smb_fname->st.st_ex_mtime);
1978
1979 if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
1980 DEBUG(3,("attempt to open a directory %s\n",
1981 fsp_str_dbg(fsp)));
1982 close_file(req, fsp, ERROR_CLOSE);
1983 reply_botherror(req, NT_STATUS_ACCESS_DENIED,
1984 ERRDOS, ERRnoaccess);
1985 goto out;
1986 }
1987
1988 reply_outbuf(req, 7, 0);
1989 SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1990 SSVAL(req->outbuf,smb_vwv1,fattr);
1991 if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1992 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1993 } else {
1994 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1995 }
1996 SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1997 SSVAL(req->outbuf,smb_vwv6,deny_mode);
1998
1999 if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2000 SCVAL(req->outbuf,smb_flg,
2001 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2002 }
2003
2004 if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2005 SCVAL(req->outbuf,smb_flg,
2006 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2007 }
2008 out:
2009 TALLOC_FREE(smb_fname);
2010 END_PROFILE(SMBopen);
2011 return;
2012 }
2013
2014 /****************************************************************************
2015 Reply to an open and X.
2016 ****************************************************************************/
2017
2018 void reply_open_and_X(struct smb_request *req)
2019 {
2020 connection_struct *conn = req->conn;
2021 struct smb_filename *smb_fname = NULL;
2022 char *fname = NULL;
2023 uint16 open_flags;
2024 int deny_mode;
2025 uint32 smb_attr;
2026 /* Breakout the oplock request bits so we can set the
2027 reply bits separately. */
2028 int ex_oplock_request;
2029 int core_oplock_request;
2030 int oplock_request;
2031 #if 0
2032 int smb_sattr = SVAL(req->vwv+4, 0);
2033 uint32 smb_time = make_unix_date3(req->vwv+6);
2034 #endif
2035 int smb_ofun;
2036 uint32 fattr=0;
2037 int mtime=0;
2038 int smb_action = 0;
2039 files_struct *fsp;
2040 NTSTATUS status;
2041 uint64_t allocation_size;
2042 ssize_t retval = -1;
2043 uint32 access_mask;
2044 uint32 share_mode;
2045 uint32 create_disposition;
2046 uint32 create_options = 0;
2047 uint32_t private_flags = 0;
2048 TALLOC_CTX *ctx = talloc_tos();
2049
2050 START_PROFILE(SMBopenX);
2051
2052 if (req->wct < 15) {
2053 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2054 goto out;
2055 }
2056
2057 open_flags = SVAL(req->vwv+2, 0);
2058 deny_mode = SVAL(req->vwv+3, 0);
2059 smb_attr = SVAL(req->vwv+5, 0);
2060 ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
2061 core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2062 oplock_request = ex_oplock_request | core_oplock_request;
2063 smb_ofun = SVAL(req->vwv+8, 0);
2064 allocation_size = (uint64_t)IVAL(req->vwv+9, 0);
2065
2066 /* If it's an IPC, pass off the pipe handler. */
2067 if (IS_IPC(conn)) {
2068 if (lp_nt_pipe_support()) {
2069 reply_open_pipe_and_X(conn, req);
2070 } else {
2071 reply_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
2072 }
2073 goto out;
2074 }
2075
2076 /* XXXX we need to handle passed times, sattr and flags */
2077 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
2078 STR_TERMINATE, &status);
2079 if (!NT_STATUS_IS_OK(status)) {
2080 reply_nterror(req, status);
2081 goto out;
2082 }
2083
2084 status = filename_convert(ctx,
2085 conn,
2086 req->flags2 & FLAGS2_DFS_PATHNAMES,
2087 fname,
2088 0,
2089 NULL,
2090 &smb_fname);
2091 if (!NT_STATUS_IS_OK(status)) {
2092 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2093 reply_botherror(req,
2094 NT_STATUS_PATH_NOT_COVERED,
2095 ERRSRV, ERRbadpath);
2096 goto out;
2097 }
2098 reply_nterror(req, status);
2099 goto out;
2100 }
2101
2102 if (!map_open_params_to_ntcreate(smb_fname->base_name, deny_mode,
2103 smb_ofun,
2104 &access_mask, &share_mode,
2105 &create_disposition,
2106 &create_options,
2107 &private_flags)) {
2108 reply_force_doserror(req, ERRDOS, ERRbadaccess);
2109 goto out;
2110 }
2111
2112 status = SMB_VFS_CREATE_FILE(
2113 conn, /* conn */
2114 req, /* req */
2115 0, /* root_dir_fid */
2116 smb_fname, /* fname */
2117 access_mask, /* access_mask */
2118 share_mode, /* share_access */
2119 create_disposition, /* create_disposition*/
2120 create_options, /* create_options */
2121 smb_attr, /* file_attributes */
2122 oplock_request, /* oplock_request */
2123 0, /* allocation_size */
2124 private_flags,
2125 NULL, /* sd */
2126 NULL, /* ea_list */
2127 &fsp, /* result */
2128 &smb_action); /* pinfo */
2129
2130 if (!NT_STATUS_IS_OK(status)) {
2131 if (open_was_deferred(req->sconn, req->mid)) {
2132 /* We have re-scheduled this call. */
2133 goto out;
2134 }
2135 reply_openerror(req, status);
2136 goto out;
2137 }
2138
2139 /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
2140 if the file is truncated or created. */
2141 if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
2142 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
2143 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
2144 close_file(req, fsp, ERROR_CLOSE);
2145 reply_nterror(req, NT_STATUS_DISK_FULL);
2146 goto out;
2147 }
2148 retval = vfs_set_filelen(fsp, (off_t)allocation_size);
2149 if (retval < 0) {
2150 close_file(req, fsp, ERROR_CLOSE);
2151 reply_nterror(req, NT_STATUS_DISK_FULL);
2152 goto out;
2153 }
2154 status = vfs_stat_fsp(fsp);
2155 if (!NT_STATUS_IS_OK(status)) {
2156 close_file(req, fsp, ERROR_CLOSE);
2157 reply_nterror(req, status);
2158 goto out;
2159 }
2160 }
2161
2162 fattr = dos_mode(conn, fsp->fsp_name);
2163 mtime = convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_mtime);
2164 if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2165 close_file(req, fsp, ERROR_CLOSE);
2166 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2167 goto out;
2168 }
2169
2170 /* If the caller set the extended oplock request bit
2171 and we granted one (by whatever means) - set the
2172 correct bit for extended oplock reply.
2173 */
2174
2175 if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
2176 smb_action |= EXTENDED_OPLOCK_GRANTED;
2177 }
2178
2179 if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2180 smb_action |= EXTENDED_OPLOCK_GRANTED;
2181 }
2182
2183 /* If the caller set the core oplock request bit
2184 and we granted one (by whatever means) - set the
2185 correct bit for core oplock reply.
2186 */
2187
2188 if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
2189 reply_outbuf(req, 19, 0);
2190 } else {
2191 reply_outbuf(req, 15, 0);
2192 }
2193
2194 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
2195 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
2196
2197 if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
2198 SCVAL(req->outbuf, smb_flg,
2199 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2200 }
2201
2202 if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2203 SCVAL(req->outbuf, smb_flg,
2204 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2205 }
2206
2207 SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
2208 SSVAL(req->outbuf,smb_vwv3,fattr);
2209 if(lp_dos_filetime_resolution(SNUM(conn)) ) {
2210 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
2211 } else {
2212 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
2213 }
2214 SIVAL(req->outbuf,smb_vwv6,(uint32)fsp->fsp_name->st.st_ex_size);
2215 SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
2216 SSVAL(req->outbuf,smb_vwv11,smb_action);
2217
2218 if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
2219 SIVAL(req->outbuf, smb_vwv15, SEC_STD_ALL);
2220 }
2221
2222 out:
2223 TALLOC_FREE(smb_fname);
2224 END_PROFILE(SMBopenX);
2225 return;
2226 }
2227
2228 /****************************************************************************
2229 Reply to a SMBulogoffX.
2230 ****************************************************************************/
2231
2232 void reply_ulogoffX(struct smb_request *req)
2233 {
2234 struct smbd_server_connection *sconn = req->sconn;
2235 struct user_struct *vuser;
2236 struct smbXsrv_session *session = NULL;
2237 NTSTATUS status;
2238
2239 START_PROFILE(SMBulogoffX);
2240
2241 vuser = get_valid_user_struct(sconn, req->vuid);
2242
2243 if(vuser == NULL) {
2244 DEBUG(3,("ulogoff, vuser id %llu does not map to user.\n",
2245 (unsigned long long)req->vuid));
2246
2247 req->vuid = UID_FIELD_INVALID;
2248 reply_force_doserror(req, ERRSRV, ERRbaduid);
2249 END_PROFILE(SMBulogoffX);
2250 return;
2251 }
2252
2253 session = vuser->session;
2254 vuser = NULL;
2255
2256 /*
2257 * TODO: cancel all outstanding requests on the session
2258 */
2259 status = smbXsrv_session_logoff(session);
2260 if (!NT_STATUS_IS_OK(status)) {
2261 DEBUG(0, ("reply_ulogoff: "
2262 "smbXsrv_session_logoff() failed: %s\n",
2263 nt_errstr(status)));
2264 /*
2265 * If we hit this case, there is something completely
2266 * wrong, so we better disconnect the transport connection.
2267 */
2268 END_PROFILE(SMBulogoffX);
2269 exit_server(__location__ ": smbXsrv_session_logoff failed");
2270 return;
2271 }
2272
2273 TALLOC_FREE(session);
2274
2275 reply_outbuf(req, 2, 0);
2276 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
2277 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
2278
2279 DEBUG(3, ("ulogoffX vuid=%llu\n",
2280 (unsigned long long)req->vuid));
2281
2282 END_PROFILE(SMBulogoffX);
2283 req->vuid = UID_FIELD_INVALID;
2284 }
2285
2286 /****************************************************************************
2287 Reply to a mknew or a create.
2288 ****************************************************************************/
2289
2290 void reply_mknew(struct smb_request *req)
2291 {
2292 connection_struct *conn = req->conn;
2293 struct smb_filename *smb_fname = NULL;
2294 char *fname = NULL;
2295 uint32 fattr = 0;
2296 struct smb_file_time ft;
2297 files_struct *fsp;
2298 int oplock_request = 0;
2299 NTSTATUS status;
2300 uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
2301 uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
2302 uint32 create_disposition;
2303 uint32 create_options = 0;
2304 TALLOC_CTX *ctx = talloc_tos();
2305
2306 START_PROFILE(SMBcreate);
2307 ZERO_STRUCT(ft);
2308
2309 if (req->wct < 3) {
2310 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2311 goto out;
2312 }
2313
2314 fattr = SVAL(req->vwv+0, 0);
2315 oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2316
2317 /* mtime. */
2318 ft.mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+1));
2319
2320 srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf + 1,
2321 STR_TERMINATE, &status);
2322 if (!NT_STATUS_IS_OK(status)) {
2323 reply_nterror(req, status);
2324 goto out;
2325 }
2326
2327 status = filename_convert(ctx,
2328 conn,
2329 req->flags2 & FLAGS2_DFS_PATHNAMES,
2330 fname,
2331 0,
2332 NULL,
2333 &smb_fname);
2334 if (!NT_STATUS_IS_OK(status)) {
2335 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2336 reply_botherror(req,
2337 NT_STATUS_PATH_NOT_COVERED,
2338 ERRSRV, ERRbadpath);
2339 goto out;
2340 }
2341 reply_nterror(req, status);
2342 goto out;
2343 }
2344
2345 if (fattr & FILE_ATTRIBUTE_VOLUME) {
2346 DEBUG(0,("Attempt to create file (%s) with volid set - "
2347 "please report this\n",
2348 smb_fname_str_dbg(smb_fname)));
2349 }
2350
2351 if(req->cmd == SMBmknew) {
2352 /* We should fail if file exists. */
2353 create_disposition = FILE_CREATE;
2354 } else {
2355 /* Create if file doesn't exist, truncate if it does. */
2356 create_disposition = FILE_OVERWRITE_IF;
2357 }
2358
2359 status = SMB_VFS_CREATE_FILE(
2360 conn, /* conn */
2361 req, /* req */
2362 0, /* root_dir_fid */
2363 smb_fname, /* fname */
2364 access_mask, /* access_mask */
2365 share_mode, /* share_access */
2366 create_disposition, /* create_disposition*/
2367 create_options, /* create_options */
2368 fattr, /* file_attributes */
2369 oplock_request, /* oplock_request */
2370 0, /* allocation_size */
2371 0, /* private_flags */
2372 NULL, /* sd */
2373 NULL, /* ea_list */
2374 &fsp, /* result */
2375 NULL); /* pinfo */
2376
2377 if (!NT_STATUS_IS_OK(status)) {
2378 if (open_was_deferred(req->sconn, req->mid)) {
2379 /* We have re-scheduled this call. */
2380 goto out;
2381 }
2382 reply_openerror(req, status);
2383 goto out;
2384 }
2385
2386 ft.atime = smb_fname->st.st_ex_atime; /* atime. */
2387 status = smb_set_file_time(conn, fsp, smb_fname, &ft, true);
2388 if (!NT_STATUS_IS_OK(status)) {
2389 END_PROFILE(SMBcreate);
2390 goto out;
2391 }
2392
2393 reply_outbuf(req, 1, 0);
2394 SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2395
2396 if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2397 SCVAL(req->outbuf,smb_flg,
2398 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2399 }
2400
2401 if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2402 SCVAL(req->outbuf,smb_flg,
2403 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2404 }
2405
2406 DEBUG(2, ("reply_mknew: file %s\n", smb_fname_str_dbg(smb_fname)));
2407 DEBUG(3, ("reply_mknew %s fd=%d dmode=0x%x\n",
2408 smb_fname_str_dbg(smb_fname), fsp->fh->fd,
2409 (unsigned int)fattr));
2410
2411 out:
2412 TALLOC_FREE(smb_fname);
2413 END_PROFILE(SMBcreate);
2414 return;
2415 }
2416
2417 /****************************************************************************
2418 Reply to a create temporary file.
2419 ****************************************************************************/
2420
2421 void reply_ctemp(struct smb_request *req)
2422 {
2423 connection_struct *conn = req->conn;
2424 struct smb_filename *smb_fname = NULL;
2425 char *wire_name = NULL;
2426 char *fname = NULL;
2427 uint32 fattr;
2428 files_struct *fsp;
2429 int oplock_request;
2430 char *s;
2431 NTSTATUS status;
2432 int i;
2433 TALLOC_CTX *ctx = talloc_tos();
2434
2435 START_PROFILE(SMBctemp);
2436
2437 if (req->wct < 3) {
2438 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2439 goto out;
2440 }
2441
2442 fattr = SVAL(req->vwv+0, 0);
2443 oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2444
2445 srvstr_get_path_req(ctx, req, &wire_name, (const char *)req->buf+1,
2446 STR_TERMINATE, &status);
2447 if (!NT_STATUS_IS_OK(status)) {
2448 reply_nterror(req, status);
2449 goto out;
2450 }
2451
2452 for (i = 0; i < 10; i++) {
2453 if (*wire_name) {
2454 fname = talloc_asprintf(ctx,
2455 "%s/TMP%s",
2456 wire_name,
2457 generate_random_str_list(ctx, 5, "0123456789"));
2458 } else {
2459 fname = talloc_asprintf(ctx,
2460 "TMP%s",
2461 generate_random_str_list(ctx, 5, "0123456789"));
2462 }
2463
2464 if (!fname) {
2465 reply_nterror(req, NT_STATUS_NO_MEMORY);
2466 goto out;
2467 }
2468
2469 status = filename_convert(ctx, conn,
2470 req->flags2 & FLAGS2_DFS_PATHNAMES,
2471 fname,
2472 0,
2473 NULL,
2474 &smb_fname);
2475 if (!NT_STATUS_IS_OK(status)) {
2476 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2477 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2478 ERRSRV, ERRbadpath);
2479 goto out;
2480 }
2481 reply_nterror(req, status);
2482 goto out;
2483 }
2484
2485 /* Create the file. */
2486 status = SMB_VFS_CREATE_FILE(
2487 conn, /* conn */
2488 req, /* req */
2489 0, /* root_dir_fid */
2490 smb_fname, /* fname */
2491 FILE_GENERIC_READ | FILE_GENERIC_WRITE, /* access_mask */
2492 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
2493 FILE_CREATE, /* create_disposition*/
2494 0, /* create_options */
2495 fattr, /* file_attributes */
2496 oplock_request, /* oplock_request */
2497 0, /* allocation_size */
2498 0, /* private_flags */
2499 NULL, /* sd */
2500 NULL, /* ea_list */
2501 &fsp, /* result */
2502 NULL); /* pinfo */
2503
2504 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
2505 TALLOC_FREE(fname);
2506 TALLOC_FREE(smb_fname);
2507 continue;
2508 }
2509
2510 if (!NT_STATUS_IS_OK(status)) {
2511 if (open_was_deferred(req->sconn, req->mid)) {
2512 /* We have re-scheduled this call. */
2513 goto out;
2514 }
2515 reply_openerror(req, status);
2516 goto out;
2517 }
2518
2519 break;
2520 }
2521
2522 if (i == 10) {
2523 /* Collision after 10 times... */
2524 reply_nterror(req, status);
2525 goto out;
2526 }
2527
2528 reply_outbuf(req, 1, 0);
2529 SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2530
2531 /* the returned filename is relative to the directory */
2532 s = strrchr_m(fsp->fsp_name->base_name, '/');
2533 if (!s) {
2534 s = fsp->fsp_name->base_name;
2535 } else {
2536 s++;
2537 }
2538
2539 #if 0
2540 /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2541 thing in the byte section. JRA */
2542 SSVALS(p, 0, -1); /* what is this? not in spec */
2543 #endif
2544 if (message_push_string(&req->outbuf, s, STR_ASCII|STR_TERMINATE)
2545 == -1) {
2546 reply_nterror(req, NT_STATUS_NO_MEMORY);
2547 goto out;
2548 }
2549
2550 if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2551 SCVAL(req->outbuf, smb_flg,
2552 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2553 }
2554
2555 if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2556 SCVAL(req->outbuf, smb_flg,
2557 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2558 }
2559
2560 DEBUG(2, ("reply_ctemp: created temp file %s\n", fsp_str_dbg(fsp)));
2561 DEBUG(3, ("reply_ctemp %s fd=%d umode=0%o\n", fsp_str_dbg(fsp),
2562 fsp->fh->fd, (unsigned int)smb_fname->st.st_ex_mode));
2563 out:
2564 TALLOC_FREE(smb_fname);
2565 TALLOC_FREE(wire_name);
2566 END_PROFILE(SMBctemp);
2567 return;
2568 }
2569
2570 /*******************************************************************
2571 Check if a user is allowed to rename a file.
2572 ********************************************************************/
2573
2574 static NTSTATUS can_rename(connection_struct *conn, files_struct *fsp,
2575 uint16 dirtype)
2576 {
2577 if (!CAN_WRITE(conn)) {
2578 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2579 }
2580
2581 if ((dirtype & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) !=
2582 (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
2583 /* Only bother to read the DOS attribute if we might deny the
2584 rename on the grounds of attribute missmatch. */
2585 uint32_t fmode = dos_mode(conn, fsp->fsp_name);
2586 if ((fmode & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) {
2587 return NT_STATUS_NO_SUCH_FILE;
2588 }
2589 }
2590
2591 if (S_ISDIR(fsp->fsp_name->st.st_ex_mode)) {
2592 if (fsp->posix_open) {
2593 return NT_STATUS_OK;
2594 }
2595
2596 /* If no pathnames are open below this
2597 directory, allow the rename. */
2598
2599 if (file_find_subpath(fsp)) {
2600 return NT_STATUS_ACCESS_DENIED;
2601 }
2602 return NT_STATUS_OK;
2603 }
2604
2605 if (fsp->access_mask & (DELETE_ACCESS|FILE_WRITE_ATTRIBUTES)) {
2606 return NT_STATUS_OK;
2607 }
2608
2609 return NT_STATUS_ACCESS_DENIED;
2610 }
2611
2612 /*******************************************************************
2613 * unlink a file with all relevant access checks
2614 *******************************************************************/
2615
2616 static NTSTATUS do_unlink(connection_struct *conn,
2617 struct smb_request *req,
2618 struct smb_filename *smb_fname,
2619 uint32 dirtype)
2620 {
2621 uint32 fattr;
2622 files_struct *fsp;
2623 uint32 dirtype_orig = dirtype;
2624 NTSTATUS status;
2625 int ret;
2626 bool posix_paths = lp_posix_pathnames();
2627
2628 DEBUG(10,("do_unlink: %s, dirtype = %d\n",
2629 smb_fname_str_dbg(smb_fname),
2630 dirtype));
2631
2632 if (!CAN_WRITE(conn)) {
2633 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2634 }
2635
2636 if (posix_paths) {
2637 ret = SMB_VFS_LSTAT(conn, smb_fname);
2638 } else {
2639 ret = SMB_VFS_STAT(conn, smb_fname);
2640 }
2641 if (ret != 0) {
2642 return map_nt_error_from_unix(errno);
2643 }
2644
2645 fattr = dos_mode(conn, smb_fname);
2646
2647 if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2648 dirtype = FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_READONLY;
2649 }
2650
2651 dirtype &= (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
2652 if (!dirtype) {
2653 return NT_STATUS_NO_SUCH_FILE;
2654 }
2655
2656 if (!dir_check_ftype(conn, fattr, dirtype)) {
2657 if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2658 return NT_STATUS_FILE_IS_A_DIRECTORY;
2659 }
2660 return NT_STATUS_NO_SUCH_FILE;
2661 }
2662
2663 if (dirtype_orig & 0x8000) {
2664 /* These will never be set for POSIX. */
2665 return NT_STATUS_NO_SUCH_FILE;
2666 }
2667
2668 #if 0
2669 if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2670 return NT_STATUS_FILE_IS_A_DIRECTORY;
2671 }
2672
2673 if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
2674 return NT_STATUS_NO_SUCH_FILE;
2675 }
2676
2677 if (dirtype & 0xFF00) {
2678 /* These will never be set for POSIX. */
2679 return NT_STATUS_NO_SUCH_FILE;
2680 }
2681
2682 dirtype &= 0xFF;
2683 if (!dirtype) {
2684 return NT_STATUS_NO_SUCH_FILE;
2685 }
2686
2687 /* Can't delete a directory. */
2688 if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2689 return NT_STATUS_FILE_IS_A_DIRECTORY;
2690 }
2691 #endif
2692
2693 #if 0 /* JRATEST */
2694 else if (dirtype & FILE_ATTRIBUTE_DIRECTORY) /* Asked for a directory and it isn't. */
2695 return NT_STATUS_OBJECT_NAME_INVALID;
2696 #endif /* JRATEST */
2697
2698 /* On open checks the open itself will check the share mode, so
2699 don't do it here as we'll get it wrong. */
2700
2701 status = SMB_VFS_CREATE_FILE
2702 (conn, /* conn */
2703 req, /* req */
2704 0, /* root_dir_fid */
2705 smb_fname, /* fname */
2706 DELETE_ACCESS, /* access_mask */
2707 FILE_SHARE_NONE, /* share_access */
2708 FILE_OPEN, /* create_disposition*/
2709 FILE_NON_DIRECTORY_FILE, /* create_options */
2710 /* file_attributes */
2711 posix_paths ? FILE_FLAG_POSIX_SEMANTICS|0777 :
2712 FILE_ATTRIBUTE_NORMAL,
2713 0, /* oplock_request */
2714 0, /* allocation_size */
2715 0, /* private_flags */
2716 NULL, /* sd */
2717 NULL, /* ea_list */
2718 &fsp, /* result */
2719 NULL); /* pinfo */
2720
2721 if (!NT_STATUS_IS_OK(status)) {
2722 DEBUG(10, ("SMB_VFS_CREATEFILE failed: %s\n",
2723 nt_errstr(status)));
2724 return status;
2725 }
2726
2727 status = can_set_delete_on_close(fsp, fattr);
2728 if (!NT_STATUS_IS_OK(status)) {
2729 DEBUG(10, ("do_unlink can_set_delete_on_close for file %s - "
2730 "(%s)\n",
2731 smb_fname_str_dbg(smb_fname),
2732 nt_errstr(status)));
2733 close_file(req, fsp, NORMAL_CLOSE);
2734 return status;
2735 }
2736
2737 /* The set is across all open files on this dev/inode pair. */
2738 if (!set_delete_on_close(fsp, True,
2739 conn->session_info->security_token,
2740 conn->session_info->unix_token)) {
2741 close_file(req, fsp, NORMAL_CLOSE);
2742 return NT_STATUS_ACCESS_DENIED;
2743 }
2744
2745 return close_file(req, fsp, NORMAL_CLOSE);
2746 }
2747
2748 /****************************************************************************
2749 The guts of the unlink command, split out so it may be called by the NT SMB
2750 code.
2751 ****************************************************************************/
2752
2753 NTSTATUS unlink_internals(connection_struct *conn, struct smb_request *req,
2754 uint32 dirtype, struct smb_filename *smb_fname,
2755 bool has_wild)
2756 {
2757 char *fname_dir = NULL;
2758 char *fname_mask = NULL;
2759 int count=0;
2760 NTSTATUS status = NT_STATUS_OK;
2761 TALLOC_CTX *ctx = talloc_tos();
2762
2763 /* Split up the directory from the filename/mask. */
2764 status = split_fname_dir_mask(ctx, smb_fname->base_name,
2765 &fname_dir, &fname_mask);
2766 if (!NT_STATUS_IS_OK(status)) {
2767 goto out;
2768 }
2769
2770 /*
2771 * We should only check the mangled cache
2772 * here if unix_convert failed. This means
2773 * that the path in 'mask' doesn't exist
2774 * on the file system and so we need to look
2775 * for a possible mangle. This patch from
2776 * Tine Smukavec <valentin.smukavec@hermes.si>.
2777 */
2778
2779 if (!VALID_STAT(smb_fname->st) &&
2780 mangle_is_mangled(fname_mask, conn->params)) {
2781 char *new_mask = NULL;
2782 mangle_lookup_name_from_8_3(ctx, fname_mask,
2783 &new_mask, conn->params);
2784 if (new_mask) {
2785 TALLOC_FREE(fname_mask);
2786 fname_mask = new_mask;
2787 }
2788 }
2789
2790 if (!has_wild) {
2791
2792 /*
2793 * Only one file needs to be unlinked. Append the mask back
2794 * onto the directory.
2795 */
2796 TALLOC_FREE(smb_fname->base_name);
2797 if (ISDOT(fname_dir)) {
2798 /* Ensure we use canonical names on open. */
2799 smb_fname->base_name = talloc_asprintf(smb_fname,
2800 "%s",
2801 fname_mask);
2802 } else {
2803 smb_fname->base_name = talloc_asprintf(smb_fname,
2804 "%s/%s",
2805 fname_dir,
2806 fname_mask);
2807 }
2808 if (!smb_fname->base_name) {
2809 status = NT_STATUS_NO_MEMORY;
2810 goto out;
2811 }
2812 if (dirtype == 0) {
2813 dirtype = FILE_ATTRIBUTE_NORMAL;
2814 }
2815
2816 status = check_name(conn, smb_fname->base_name);
2817 if (!NT_STATUS_IS_OK(status)) {
2818 goto out;
2819 }
2820
2821 status = do_unlink(conn, req, smb_fname, dirtype);
2822 if (!NT_STATUS_IS_OK(status)) {
2823 goto out;
2824 }
2825
2826 count++;
2827 } else {
2828 struct smb_Dir *dir_hnd = NULL;
2829 long offset = 0;
2830 const char *dname = NULL;
2831 char *talloced = NULL;
2832
2833 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == FILE_ATTRIBUTE_DIRECTORY) {
2834 status = NT_STATUS_OBJECT_NAME_INVALID;
2835 goto out;
2836 }
2837
2838 if (strequal(fname_mask,"????????.???")) {
2839 TALLOC_FREE(fname_mask);
2840 fname_mask = talloc_strdup(ctx, "*");
2841 if (!fname_mask) {
2842 status = NT_STATUS_NO_MEMORY;
2843 goto out;
2844 }
2845 }
2846
2847 status = check_name(conn, fname_dir);
2848 if (!NT_STATUS_IS_OK(status)) {
2849 goto out;
2850 }
2851
2852 dir_hnd = OpenDir(talloc_tos(), conn, fname_dir, fname_mask,
2853 dirtype);
2854 if (dir_hnd == NULL) {
2855 status = map_nt_error_from_unix(errno);
2856 goto out;
2857 }
2858
2859 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2860 the pattern matches against the long name, otherwise the short name
2861 We don't implement this yet XXXX
2862 */
2863
2864 status = NT_STATUS_NO_SUCH_FILE;
2865
2866 while ((dname = ReadDirName(dir_hnd, &offset,
2867 &smb_fname->st, &talloced))) {
2868 TALLOC_CTX *frame = talloc_stackframe();
2869
2870 if (!is_visible_file(conn, fname_dir, dname,
2871 &smb_fname->st, true)) {
2872 TALLOC_FREE(frame);
2873 TALLOC_FREE(talloced);
2874 continue;
2875 }
2876
2877 /* Quick check for "." and ".." */
2878 if (ISDOT(dname) || ISDOTDOT(dname)) {
2879 TALLOC_FREE(frame);
2880 TALLOC_FREE(talloced);
2881 continue;
2882 }
2883
2884 if(!mask_match(dname, fname_mask,
2885 conn->case_sensitive)) {
2886 TALLOC_FREE(frame);
2887 TALLOC_FREE(talloced);
2888 continue;
2889 }
2890
2891 TALLOC_FREE(smb_fname->base_name);
2892 if (ISDOT(fname_dir)) {
2893 /* Ensure we use canonical names on open. */
2894 smb_fname->base_name =
2895 talloc_asprintf(smb_fname, "%s",
2896 dname);
2897 } else {
2898 smb_fname->base_name =
2899 talloc_asprintf(smb_fname, "%s/%s",
2900 fname_dir, dname);
2901 }
2902
2903 if (!smb_fname->base_name) {
2904 TALLOC_FREE(dir_hnd);
2905 status = NT_STATUS_NO_MEMORY;
2906 TALLOC_FREE(frame);
2907 TALLOC_FREE(talloced);
2908 goto out;
2909 }
2910
2911 status = check_name(conn, smb_fname->base_name);
2912 if (!NT_STATUS_IS_OK(status)) {
2913 TALLOC_FREE(dir_hnd);
2914 TALLOC_FREE(frame);
2915 TALLOC_FREE(talloced);
2916 goto out;
2917 }
2918
2919 status = do_unlink(conn, req, smb_fname, dirtype);
2920 if (!NT_STATUS_IS_OK(status)) {
2921 TALLOC_FREE(frame);
2922 TALLOC_FREE(talloced);
2923 continue;
2924 }
2925
2926 count++;
2927 DEBUG(3,("unlink_internals: successful unlink [%s]\n",
2928 smb_fname->base_name));
2929
2930 TALLOC_FREE(frame);
2931 TALLOC_FREE(talloced);
2932 }
2933 TALLOC_FREE(dir_hnd);
2934 }
2935
2936 if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
2937 status = map_nt_error_from_unix(errno);
2938 }
2939
2940 out:
2941 TALLOC_FREE(fname_dir);
2942 TALLOC_FREE(fname_mask);
2943 return status;
2944 }
2945
2946 /****************************************************************************
2947 Reply to a unlink
2948 ****************************************************************************/
2949
2950 void reply_unlink(struct smb_request *req)
2951 {
2952 connection_struct *conn = req->conn;
2953 char *name = NULL;
2954 struct smb_filename *smb_fname = NULL;
2955 uint32 dirtype;
2956 NTSTATUS status;
2957 bool path_contains_wcard = False;
2958 TALLOC_CTX *ctx = talloc_tos();
2959
2960 START_PROFILE(SMBunlink);
2961
2962 if (req->wct < 1) {
2963 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2964 goto out;
2965 }
2966
2967 dirtype = SVAL(req->vwv+0, 0);
2968
2969 srvstr_get_path_req_wcard(ctx, req, &name, (const char *)req->buf + 1,
2970 STR_TERMINATE, &status,
2971 &path_contains_wcard);
2972 if (!NT_STATUS_IS_OK(status)) {
2973 reply_nterror(req, status);
2974 goto out;
2975 }
2976
2977 status = filename_convert(ctx, conn,
2978 req->flags2 & FLAGS2_DFS_PATHNAMES,
2979 name,
2980 UCF_COND_ALLOW_WCARD_LCOMP,
2981 &path_contains_wcard,
2982 &smb_fname);
2983 if (!NT_STATUS_IS_OK(status)) {
2984 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2985 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2986 ERRSRV, ERRbadpath);
2987 goto out;
2988 }
2989 reply_nterror(req, status);
2990 goto out;
2991 }
2992
2993 DEBUG(3,("reply_unlink : %s\n", smb_fname_str_dbg(smb_fname)));
2994
2995 status = unlink_internals(conn, req, dirtype, smb_fname,
2996 path_contains_wcard);
2997 if (!NT_STATUS_IS_OK(status)) {
2998 if (open_was_deferred(req->sconn, req->mid)) {
2999 /* We have re-scheduled this call. */
3000 goto out;
3001 }
3002 reply_nterror(req, status);
3003 goto out;
3004 }
3005
3006 reply_outbuf(req, 0, 0);
3007 out:
3008 TALLOC_FREE(smb_fname);
3009 END_PROFILE(SMBunlink);
3010 return;
3011 }
3012
3013 /****************************************************************************
3014 Fail for readbraw.
3015 ****************************************************************************/
3016
3017 static void fail_readraw(void)
3018 {
3019 const char *errstr = talloc_asprintf(talloc_tos(),
3020 "FAIL ! reply_readbraw: socket write fail (%s)",
3021 strerror(errno));
3022 if (!errstr) {
3023 errstr = "";
3024 }
3025 exit_server_cleanly(errstr);
3026 }
3027
3028 /****************************************************************************
3029 Fake (read/write) sendfile. Returns -1 on read or write fail.
3030 ****************************************************************************/
3031
3032 ssize_t fake_sendfile(files_struct *fsp, off_t startpos, size_t nread)
3033 {
3034 size_t bufsize;
3035 size_t tosend = nread;
3036 char *buf;
3037
3038 if (nread == 0) {
3039 return 0;
3040 }
3041
3042 bufsize = MIN(nread, 65536);
3043
3044 if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
3045 return -1;
3046 }
3047
3048 while (tosend > 0) {
3049 ssize_t ret;
3050 size_t cur_read;
3051
3052 if (tosend > bufsize) {
3053 cur_read = bufsize;
3054 } else {
3055 cur_read = tosend;
3056 }
3057 ret = read_file(fsp,buf,startpos,cur_read);
3058 if (ret == -1) {
3059 SAFE_FREE(buf);
3060 return -1;
3061 }
3062
3063 /* If we had a short read, fill with zeros. */
3064 if (ret < cur_read) {
3065 memset(buf + ret, '\0', cur_read - ret);
3066 }
3067
3068 if (write_data(fsp->conn->sconn->sock, buf, cur_read)
3069 != cur_read) {
3070 char addr[INET6_ADDRSTRLEN];
3071 /*
3072 * Try and give an error message saying what
3073 * client failed.
3074 */
3075 DEBUG(0, ("write_data failed for client %s. "
3076 "Error %s\n",
3077 get_peer_addr(fsp->conn->sconn->sock, addr,
3078 sizeof(addr)),
3079 strerror(errno)));
3080 SAFE_FREE(buf);
3081 return -1;
3082 }
3083 tosend -= cur_read;
3084 startpos += cur_read;
3085 }
3086
3087 SAFE_FREE(buf);
3088 return (ssize_t)nread;
3089 }
3090
3091 /****************************************************************************
3092 Deal with the case of sendfile reading less bytes from the file than
3093 requested. Fill with zeros (all we can do).
3094 ****************************************************************************/
3095
3096 void sendfile_short_send(files_struct *fsp,
3097 ssize_t nread,
3098 size_t headersize,
3099 size_t smb_maxcnt)
3100 {
3101 #define SHORT_SEND_BUFSIZE 1024
3102 if (nread < headersize) {
3103 DEBUG(0,("sendfile_short_send: sendfile failed to send "
3104 "header for file %s (%s). Terminating\n",
3105 fsp_str_dbg(fsp), strerror(errno)));
3106 exit_server_cleanly("sendfile_short_send failed");
3107 }
3108
3109 nread -= headersize;
3110
3111 if (nread < smb_maxcnt) {
3112 char *buf = SMB_CALLOC_ARRAY(char, SHORT_SEND_BUFSIZE);
3113 if (!buf) {
3114 exit_server_cleanly("sendfile_short_send: "
3115 "malloc failed");
3116 }
3117
3118 DEBUG(0,("sendfile_short_send: filling truncated file %s "
3119 "with zeros !\n", fsp_str_dbg(fsp)));
3120
3121 while (nread < smb_maxcnt) {
3122 /*
3123 * We asked for the real file size and told sendfile
3124 * to not go beyond the end of the file. But it can
3125 * happen that in between our fstat call and the
3126 * sendfile call the file was truncated. This is very
3127 * bad because we have already announced the larger
3128 * number of bytes to the client.
3129 *
3130 * The best we can do now is to send 0-bytes, just as
3131 * a read from a hole in a sparse file would do.
3132 *
3133 * This should happen rarely enough that I don't care
3134 * about efficiency here :-)
3135 */
3136 size_t to_write;
3137
3138 to_write = MIN(SHORT_SEND_BUFSIZE, smb_maxcnt - nread);
3139 if (write_data(fsp->conn->sconn->sock, buf, to_write)
3140 != to_write) {
3141 char addr[INET6_ADDRSTRLEN];
3142 /*
3143 * Try and give an error message saying what
3144 * client failed.
3145 */
3146 DEBUG(0, ("write_data failed for client %s. "
3147 "Error %s\n",
3148 get_peer_addr(
3149 fsp->conn->sconn->sock, addr,
3150 sizeof(addr)),
3151 strerror(errno)));
3152 exit_server_cleanly("sendfile_short_send: "
3153 "write_data failed");
3154 }
3155 nread += to_write;
3156 }
3157 SAFE_FREE(buf);
3158 }
3159 }
3160
3161 /****************************************************************************
3162 Return a readbraw error (4 bytes of zero).
3163 ****************************************************************************/
3164
3165 static void reply_readbraw_error(struct smbd_server_connection *sconn)
3166 {
3167 char header[4];
3168
3169 SIVAL(header,0,0);
3170
3171 smbd_lock_socket(sconn);
3172 if (write_data(sconn->sock,header,4) != 4) {
3173 char addr[INET6_ADDRSTRLEN];
3174 /*
3175 * Try and give an error message saying what
3176 * client failed.
3177 */
3178 DEBUG(0, ("write_data failed for client %s. "
3179 "Error %s\n",
3180 get_peer_addr(sconn->sock, addr, sizeof(addr)),
3181 strerror(errno)));
3182
3183 fail_readraw();
3184 }
3185 smbd_unlock_socket(sconn);
3186 }
3187
3188 /****************************************************************************
3189 Use sendfile in readbraw.
3190 ****************************************************************************/
3191
3192 static void send_file_readbraw(connection_struct *conn,
3193 struct smb_request *req,
3194 files_struct *fsp,
3195 off_t startpos,
3196 size_t nread,
3197 ssize_t mincount)
3198 {
3199 struct smbd_server_connection *sconn = req->sconn;
3200 char *outbuf = NULL;
3201 ssize_t ret=0;
3202
3203 /*
3204 * We can only use sendfile on a non-chained packet
3205 * but we can use on a non-oplocked file. tridge proved this
3206 * on a train in Germany :-). JRA.
3207 * reply_readbraw has already checked the length.
3208 */
3209
3210 if ( !req_is_in_chain(req) && (nread > 0) && (fsp->base_fsp == NULL) &&
3211 (fsp->wcp == NULL) &&
3212 lp_use_sendfile(SNUM(conn), req->sconn->smb1.signing_state) ) {
3213 ssize_t sendfile_read = -1;
3214 char header[4];
3215 DATA_BLOB header_blob;
3216
3217 _smb_setlen(header,nread);
3218 header_blob = data_blob_const(header, 4);
3219
3220 sendfile_read = SMB_VFS_SENDFILE(sconn->sock, fsp,
3221 &header_blob, startpos,
3222 nread);
3223 if (sendfile_read == -1) {
3224 /* Returning ENOSYS means no data at all was sent.
3225 * Do this as a normal read. */
3226 if (errno == ENOSYS) {
3227 goto normal_readbraw;
3228 }
3229
3230 /*
3231 * Special hack for broken Linux with no working sendfile. If we
3232 * return EINTR we sent the header but not the rest of the data.
3233 * Fake this up by doing read/write calls.
3234 */
3235 if (errno == EINTR) {
3236 /* Ensure we don't do this again. */
3237 set_use_sendfile(SNUM(conn), False);
3238 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
3239
3240 if (fake_sendfile(fsp, startpos, nread) == -1) {
3241 DEBUG(0,("send_file_readbraw: "
3242 "fake_sendfile failed for "
3243 "file %s (%s).\n",
3244 fsp_str_dbg(fsp),
3245 strerror(errno)));
3246 exit_server_cleanly("send_file_readbraw fake_sendfile failed");
3247 }
3248 return;
3249 }
3250
3251 DEBUG(0,("send_file_readbraw: sendfile failed for "
3252 "file %s (%s). Terminating\n",
3253 fsp_str_dbg(fsp), strerror(errno)));
3254 exit_server_cleanly("send_file_readbraw sendfile failed");
3255 } else if (sendfile_read == 0) {
3256 /*
3257 * Some sendfile implementations return 0 to indicate
3258 * that there was a short read, but nothing was
3259 * actually written to the socket. In this case,
3260 * fallback to the normal read path so the header gets
3261 * the correct byte count.
3262 */
3263 DEBUG(3, ("send_file_readbraw: sendfile sent zero "
3264 "bytes falling back to the normal read: "
3265 "%s\n", fsp_str_dbg(fsp)));
3266 goto normal_readbraw;
3267 }
3268
3269 /* Deal with possible short send. */
3270 if (sendfile_read != 4+nread) {
3271 sendfile_short_send(fsp, sendfile_read, 4, nread);
3272 }
3273 return;
3274 }
3275
3276 normal_readbraw:
3277
3278 outbuf = talloc_array(NULL, char, nread+4);
3279 if (!outbuf) {
3280 DEBUG(0,("send_file_readbraw: talloc_array failed for size %u.\n",
3281 (unsigned)(nread+4)));
3282 reply_readbraw_error(sconn);
3283 return;
3284 }
3285
3286 if (nread > 0) {
3287 ret = read_file(fsp,outbuf+4,startpos,nread);
3288 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
3289 if (ret < mincount)
3290 ret = 0;
3291 #else
3292 if (ret < nread)
3293 ret = 0;
3294 #endif
3295 }
3296
3297 _smb_setlen(outbuf,ret);
3298 if (write_data(sconn->sock, outbuf, 4+ret) != 4+ret) {
3299 char addr[INET6_ADDRSTRLEN];
3300 /*
3301 * Try and give an error message saying what
3302 * client failed.
3303 */
3304 DEBUG(0, ("write_data failed for client %s. "
3305 "Error %s\n",
3306 get_peer_addr(fsp->conn->sconn->sock, addr,
3307 sizeof(addr)),
3308 strerror(errno)));
3309
3310 fail_readraw();
3311 }
3312
3313 TALLOC_FREE(outbuf);
3314 }
3315
3316 /****************************************************************************
3317 Reply to a readbraw (core+ protocol).
3318 ****************************************************************************/
3319
3320 void reply_readbraw(struct smb_request *req)
3321 {
3322 connection_struct *conn = req->conn;
3323 struct smbd_server_connection *sconn = req->sconn;
3324 ssize_t maxcount,mincount;
3325 size_t nread = 0;
3326 off_t startpos;
3327 files_struct *fsp;
3328 struct lock_struct lock;
3329 off_t size = 0;
3330
3331 START_PROFILE(SMBreadbraw);
3332
3333 if (srv_is_signing_active(sconn) || req->encrypted) {
3334 exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
3335 "raw reads/writes are disallowed.");
3336 }
3337
3338 if (req->wct < 8) {
3339 reply_readbraw_error(sconn);
3340 END_PROFILE(SMBreadbraw);
3341 return;
3342 }
3343
3344 if (sconn->smb1.echo_handler.trusted_fde) {
3345 DEBUG(2,("SMBreadbraw rejected with NOT_SUPPORTED because of "
3346 "'async smb echo handler = yes'\n"));
3347 reply_readbraw_error(sconn);
3348 END_PROFILE(SMBreadbraw);
3349 return;
3350 }
3351
3352 /*
3353 * Special check if an oplock break has been issued
3354 * and the readraw request croses on the wire, we must
3355 * return a zero length response here.
3356 */
3357
3358 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3359
3360 /*
3361 * We have to do a check_fsp by hand here, as
3362 * we must always return 4 zero bytes on error,
3363 * not a NTSTATUS.
3364 */
3365
3366 if (!fsp || !conn || conn != fsp->conn ||
3367 req->vuid != fsp->vuid ||
3368 fsp->is_directory || fsp->fh->fd == -1) {
3369 /*
3370 * fsp could be NULL here so use the value from the packet. JRA.
3371 */
3372 DEBUG(3,("reply_readbraw: fnum %d not valid "
3373 "- cache prime?\n",
3374 (int)SVAL(req->vwv+0, 0)));
3375 reply_readbraw_error(sconn);
3376 END_PROFILE(SMBreadbraw);
3377 return;
3378 }
3379
3380 /* Do a "by hand" version of CHECK_READ. */
3381 if (!(fsp->can_read ||
3382 ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
3383 (fsp->access_mask & FILE_EXECUTE)))) {
3384 DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
3385 (int)SVAL(req->vwv+0, 0)));
3386 reply_readbraw_error(sconn);
3387 END_PROFILE(SMBreadbraw);
3388 return;
3389 }
3390
3391 flush_write_cache(fsp, READRAW_FLUSH);
3392
3393 startpos = IVAL_TO_SMB_OFF_T(req->vwv+1, 0);
3394 if(req->wct == 10) {
3395 /*
3396 * This is a large offset (64 bit) read.
3397 */
3398
3399 startpos |= (((off_t)IVAL(req->vwv+8, 0)) << 32);
3400
3401 if(startpos < 0) {
3402 DEBUG(0,("reply_readbraw: negative 64 bit "
3403 "readraw offset (%.0f) !\n",
3404 (double)startpos ));
3405 reply_readbraw_error(sconn);
3406 END_PROFILE(SMBreadbraw);
3407 return;
3408 }
3409 }
3410
3411 maxcount = (SVAL(req->vwv+3, 0) & 0xFFFF);
3412 mincount = (SVAL(req->vwv+4, 0) & 0xFFFF);
3413
3414 /* ensure we don't overrun the packet size */
3415 maxcount = MIN(65535,maxcount);
3416
3417 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3418 (uint64_t)startpos, (uint64_t)maxcount, READ_LOCK,
3419 &lock);
3420
3421 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3422 reply_readbraw_error(sconn);
3423 END_PROFILE(SMBreadbraw);
3424 return;
3425 }
3426
3427 if (fsp_stat(fsp) == 0) {
3428 size = fsp->fsp_name->st.st_ex_size;
3429 }
3430
3431 if (startpos >= size) {
3432 nread = 0;
3433 } else {
3434 nread = MIN(maxcount,(size - startpos));
3435 }
3436
3437 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
3438 if (nread < mincount)
3439 nread = 0;
3440 #endif
3441
3442 DEBUG( 3, ( "reply_readbraw: %s start=%.0f max=%lu "
3443 "min=%lu nread=%lu\n",
3444 fsp_fnum_dbg(fsp), (double)startpos,
3445 (unsigned long)maxcount,
3446 (unsigned long)mincount,
3447 (unsigned long)nread ) );
3448
3449 send_file_readbraw(conn, req, fsp, startpos, nread, mincount);
3450
3451 DEBUG(5,("reply_readbraw finished\n"));
3452
3453 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3454
3455 END_PROFILE(SMBreadbraw);
3456 return;
3457 }
3458
3459 #undef DBGC_CLASS
3460 #define DBGC_CLASS DBGC_LOCKING
3461
3462 /****************************************************************************
3463 Reply to a lockread (core+ protocol).
3464 ****************************************************************************/
3465
3466 void reply_lockread(struct smb_request *req)
3467 {
3468 connection_struct *conn = req->conn;
3469 ssize_t nread = -1;
3470 char *data;
3471 off_t startpos;
3472 size_t numtoread;
3473 NTSTATUS status;
3474 files_struct *fsp;
3475 struct byte_range_lock *br_lck = NULL;
3476 char *p = NULL;
3477 struct smbd_server_connection *sconn = req->sconn;
3478
3479 START_PROFILE(SMBlockread);
3480
3481 if (req->wct < 5) {
3482 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3483 END_PROFILE(SMBlockread);
3484 return;
3485 }
3486
3487 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3488
3489 if (!check_fsp(conn, req, fsp)) {
3490 END_PROFILE(SMBlockread);
3491 return;
3492 }
3493
3494 if (!CHECK_READ(fsp,req)) {
3495 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3496 END_PROFILE(SMBlockread);
3497 return;
3498 }
3499
3500 numtoread = SVAL(req->vwv+1, 0);
3501 startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3502
3503 numtoread = MIN(BUFFER_SIZE - (smb_size + 3*2 + 3), numtoread);
3504
3505 reply_outbuf(req, 5, numtoread + 3);
3506
3507 data = smb_buf(req->outbuf) + 3;
3508
3509 /*
3510 * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
3511 * protocol request that predates the read/write lock concept.
3512 * Thus instead of asking for a read lock here we need to ask
3513 * for a write lock. JRA.
3514 * Note that the requested lock size is unaffected by max_recv.
3515 */
3516
3517 br_lck = do_lock(req->sconn->msg_ctx,
3518 fsp,
3519 (uint64_t)req->smbpid,
3520 (uint64_t)numtoread,
3521 (uint64_t)startpos,
3522 WRITE_LOCK,
3523 WINDOWS_LOCK,
3524 False, /* Non-blocking lock. */
3525 &status,
3526 NULL,
3527 NULL);
3528 TALLOC_FREE(br_lck);
3529
3530 if (NT_STATUS_V(status)) {
3531 reply_nterror(req, status);
3532 END_PROFILE(SMBlockread);
3533 return;
3534 }
3535
3536 /*
3537 * However the requested READ size IS affected by max_recv. Insanity.... JRA.
3538 */
3539
3540 if (numtoread > sconn->smb1.negprot.max_recv) {
3541 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
3542 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3543 (unsigned int)numtoread,
3544 (unsigned int)sconn->smb1.negprot.max_recv));
3545 numtoread = MIN(numtoread, sconn->smb1.negprot.max_recv);
3546 }
3547 nread = read_file(fsp,data,startpos,numtoread);
3548
3549 if (nread < 0) {
3550 reply_nterror(req, map_nt_error_from_unix(errno));
3551 END_PROFILE(SMBlockread);
3552 return;
3553 }
3554
3555 srv_set_message((char *)req->outbuf, 5, nread+3, False);
3556
3557 SSVAL(req->outbuf,smb_vwv0,nread);
3558 SSVAL(req->outbuf,smb_vwv5,nread+3);
3559 p = smb_buf(req->outbuf);
3560 SCVAL(p,0,0); /* pad byte. */
3561 SSVAL(p,1,nread);
3562
3563 DEBUG(3,("lockread %s num=%d nread=%d\n",
3564 fsp_fnum_dbg(fsp), (int)numtoread, (int)nread));
3565
3566 END_PROFILE(SMBlockread);
3567 return;
3568 }
3569
3570 #undef DBGC_CLASS
3571 #define DBGC_CLASS DBGC_ALL
3572
3573 /****************************************************************************
3574 Reply to a read.
3575 ****************************************************************************/
3576
3577 void reply_read(struct smb_request *req)
3578 {
3579 connection_struct *conn = req->conn;
3580 size_t numtoread;
3581 ssize_t nread = 0;
3582 char *data;
3583 off_t startpos;
3584 int outsize = 0;
3585 files_struct *fsp;
3586 struct lock_struct lock;
3587 struct smbd_server_connection *sconn = req->sconn;
3588
3589 START_PROFILE(SMBread);
3590
3591 if (req->wct < 3) {
3592 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3593 END_PROFILE(SMBread);
3594 return;
3595 }
3596
3597 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3598
3599 if (!check_fsp(conn, req, fsp)) {
3600 END_PROFILE(SMBread);
3601 return;
3602 }
3603
3604 if (!CHECK_READ(fsp,req)) {
3605 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3606 END_PROFILE(SMBread);
3607 return;
3608 }
3609
3610 numtoread = SVAL(req->vwv+1, 0);
3611 startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3612
3613 numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
3614
3615 /*
3616 * The requested read size cannot be greater than max_recv. JRA.
3617 */
3618 if (numtoread > sconn->smb1.negprot.max_recv) {
3619 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
3620 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3621 (unsigned int)numtoread,
3622 (unsigned int)sconn->smb1.negprot.max_recv));
3623 numtoread = MIN(numtoread, sconn->smb1.negprot.max_recv);
3624 }
3625
3626 reply_outbuf(req, 5, numtoread+3);
3627
3628 data = smb_buf(req->outbuf) + 3;
3629
3630 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3631 (uint64_t)startpos, (uint64_t)numtoread, READ_LOCK,
3632 &lock);
3633
3634 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3635 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
3636 END_PROFILE(SMBread);
3637 return;
3638 }
3639
3640 if (numtoread > 0)
3641 nread = read_file(fsp,data,startpos,numtoread);
3642
3643 if (nread < 0) {
3644 reply_nterror(req, map_nt_error_from_unix(errno));
3645 goto strict_unlock;
3646 }
3647
3648 srv_set_message((char *)req->outbuf, 5, nread+3, False);
3649
3650 SSVAL(req->outbuf,smb_vwv0,nread);
3651 SSVAL(req->outbuf,smb_vwv5,nread+3);
3652 SCVAL(smb_buf(req->outbuf),0,1);
3653 SSVAL(smb_buf(req->outbuf),1,nread);
3654
3655 DEBUG(3, ("read %s num=%d nread=%d\n",
3656 fsp_fnum_dbg(fsp), (int)numtoread, (int)nread));
3657
3658 strict_unlock:
3659 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3660
3661 END_PROFILE(SMBread);
3662 return;
3663 }
3664
3665 /****************************************************************************
3666 Setup readX header.
3667 ****************************************************************************/
3668
3669 static int setup_readX_header(struct smb_request *req, char *outbuf,
3670 size_t smb_maxcnt)
3671 {
3672 int outsize;
3673
3674 outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
3675
3676 memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
3677
3678 SCVAL(outbuf,smb_vwv0,0xFF);
3679 SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
3680 SSVAL(outbuf,smb_vwv5,smb_maxcnt);
3681 SSVAL(outbuf,smb_vwv6,
3682 (smb_wct - 4) /* offset from smb header to wct */
3683 + 1 /* the wct field */
3684 + 12 * sizeof(uint16_t) /* vwv */
3685 + 2); /* the buflen field */
3686 SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
3687 SSVAL(outbuf,smb_vwv11,smb_maxcnt);
3688 /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
3689 _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
3690 return outsize;
3691 }
3692
3693 /****************************************************************************
3694 Reply to a read and X - possibly using sendfile.
3695 ****************************************************************************/
3696
3697 static void send_file_readX(connection_struct *conn, struct smb_request *req,
3698 files_struct *fsp, off_t startpos,
3699 size_t smb_maxcnt)
3700 {
3701 ssize_t nread = -1;
3702 struct lock_struct lock;
3703 int saved_errno = 0;
3704
3705 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3706 (uint64_t)startpos, (uint64_t)smb_maxcnt, READ_LOCK,
3707 &lock);
3708
3709 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3710 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
3711 return;
3712 }
3713
3714 /*
3715 * We can only use sendfile on a non-chained packet
3716 * but we can use on a non-oplocked file. tridge proved this
3717 * on a train in Germany :-). JRA.
3718 */
3719
3720 if (!req_is_in_chain(req) &&
3721 !req->encrypted &&
3722 (fsp->base_fsp == NULL) &&
3723 (fsp->wcp == NULL) &&
3724 lp_use_sendfile(SNUM(conn), req->sconn->smb1.signing_state) ) {
3725 uint8 headerbuf[smb_size + 12 * 2];
3726 DATA_BLOB header;
3727
3728 if(fsp_stat(fsp) == -1) {
3729 reply_nterror(req, map_nt_error_from_unix(errno));
3730 goto strict_unlock;
3731 }
3732
3733 if (!S_ISREG(fsp->fsp_name->st.st_ex_mode) ||
3734 (startpos > fsp->fsp_name->st.st_ex_size) ||
3735 (smb_maxcnt > (fsp->fsp_name->st.st_ex_size - startpos))) {
3736 /*
3737 * We already know that we would do a short read, so don't
3738 * try the sendfile() path.
3739 */
3740 goto nosendfile_read;
3741 }
3742
3743 /*
3744 * Set up the packet header before send. We
3745 * assume here the sendfile will work (get the
3746 * correct amount of data).
3747 */
3748
3749 header = data_blob_const(headerbuf, sizeof(headerbuf));
3750
3751 construct_reply_common_req(req, (char *)headerbuf);
3752 setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3753
3754 nread = SMB_VFS_SENDFILE(req->sconn->sock, fsp, &header,
3755 startpos, smb_maxcnt);
3756 if (nread == -1) {
3757 /* Returning ENOSYS means no data at all was sent.
3758 Do this as a normal read. */
3759 if (errno == ENOSYS) {
3760 goto normal_read;
3761 }
3762
3763 /*
3764 * Special hack for broken Linux with no working sendfile. If we
3765 * return EINTR we sent the header but not the rest of the data.
3766 * Fake this up by doing read/write calls.
3767 */
3768
3769 if (errno == EINTR) {
3770 /* Ensure we don't do this again. */
3771 set_use_sendfile(SNUM(conn), False);
3772 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3773 nread = fake_sendfile(fsp, startpos,
3774 smb_maxcnt);
3775 if (nread == -1) {
3776 DEBUG(0,("send_file_readX: "
3777 "fake_sendfile failed for "
3778 "file %s (%s).\n",
3779 fsp_str_dbg(fsp),
3780 strerror(errno)));
3781 exit_server_cleanly("send_file_readX: fake_sendfile failed");
3782 }
3783 DEBUG(3, ("send_file_readX: fake_sendfile %s max=%d nread=%d\n",
3784 fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
3785 /* No outbuf here means successful sendfile. */
3786 goto strict_unlock;
3787 }
3788
3789 DEBUG(0,("send_file_readX: sendfile failed for file "
3790 "%s (%s). Terminating\n", fsp_str_dbg(fsp),
3791 strerror(errno)));
3792 exit_server_cleanly("send_file_readX sendfile failed");
3793 } else if (nread == 0) {
3794 /*
3795 * Some sendfile implementations return 0 to indicate
3796 * that there was a short read, but nothing was
3797 * actually written to the socket. In this case,
3798 * fallback to the normal read path so the header gets
3799 * the correct byte count.
3800 */
3801 DEBUG(3, ("send_file_readX: sendfile sent zero bytes "
3802 "falling back to the normal read: %s\n",
3803 fsp_str_dbg(fsp)));
3804 goto normal_read;
3805 }
3806
3807 DEBUG(3, ("send_file_readX: sendfile %s max=%d nread=%d\n",
3808 fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
3809
3810 /* Deal with possible short send. */
3811 if (nread != smb_maxcnt + sizeof(headerbuf)) {
3812 sendfile_short_send(fsp, nread, sizeof(headerbuf), smb_maxcnt);
3813 }
3814 /* No outbuf here means successful sendfile. */
3815 SMB_PERFCOUNT_SET_MSGLEN_OUT(&req->pcd, nread);
3816 SMB_PERFCOUNT_END(&req->pcd);
3817 goto strict_unlock;
3818 }
3819
3820 normal_read:
3821
3822 if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3823 uint8 headerbuf[smb_size + 2*12];
3824
3825 construct_reply_common_req(req, (char *)headerbuf);
3826 setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3827
3828 /* Send out the header. */
3829 if (write_data(req->sconn->sock, (char *)headerbuf,
3830 sizeof(headerbuf)) != sizeof(headerbuf)) {
3831
3832 char addr[INET6_ADDRSTRLEN];
3833 /*
3834 * Try and give an error message saying what
3835 * client failed.
3836 */
3837 DEBUG(0, ("write_data failed for client %s. "
3838 "Error %s\n",
3839 get_peer_addr(req->sconn->sock, addr,
3840 sizeof(addr)),
3841 strerror(errno)));
3842
3843 DEBUG(0,("send_file_readX: write_data failed for file "
3844 "%s (%s). Terminating\n", fsp_str_dbg(fsp),
3845 strerror(errno)));
3846 exit_server_cleanly("send_file_readX sendfile failed");
3847 }
3848 nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3849 if (nread == -1) {
3850 DEBUG(0,("send_file_readX: fake_sendfile failed for "
3851 "file %s (%s).\n", fsp_str_dbg(fsp),
3852 strerror(errno)));
3853 exit_server_cleanly("send_file_readX: fake_sendfile failed");
3854 }
3855 goto strict_unlock;
3856 }
3857
3858 nosendfile_read:
3859
3860 reply_outbuf(req, 12, smb_maxcnt);
3861 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
3862 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
3863
3864 nread = read_file(fsp, smb_buf(req->outbuf), startpos, smb_maxcnt);
3865 saved_errno = errno;
3866
3867 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3868
3869 if (nread < 0) {
3870 reply_nterror(req, map_nt_error_from_unix(saved_errno));
3871 return;
3872 }
3873
3874 setup_readX_header(req, (char *)req->outbuf, nread);
3875
3876 DEBUG(3, ("send_file_readX %s max=%d nread=%d\n",
3877 fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
3878 return;
3879
3880 strict_unlock:
3881 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3882 TALLOC_FREE(req->outbuf);
3883 return;
3884 }
3885
3886 /****************************************************************************
3887 Work out how much space we have for a read return.
3888 ****************************************************************************/
3889
3890 static size_t calc_max_read_pdu(const struct smb_request *req)
3891 {
3892 if (req->sconn->conn->protocol < PROTOCOL_NT1) {
3893 return req->sconn->smb1.sessions.max_send;
3894 }
3895
3896 if (!lp_large_readwrite()) {
3897 return req->sconn->smb1.sessions.max_send;
3898 }
3899
3900 if (req_is_in_chain(req)) {
3901 return req->sconn->smb1.sessions.max_send;
3902 }
3903
3904 if (req->encrypted) {
3905 /*
3906 * Don't take encrypted traffic up to the
3907 * limit. There are padding considerations
3908 * that make that tricky.
3909 */
3910 return req->sconn->smb1.sessions.max_send;
3911 }
3912
3913 if (srv_is_signing_active(req->sconn)) {
3914 return 0x1FFFF;
3915 }
3916
3917 if (!lp_unix_extensions()) {
3918 return 0x1FFFF;
3919 }
3920
3921 /*
3922 * We can do ultra-large POSIX reads.
3923 */
3924 return 0xFFFFFF;
3925 }
3926
3927 /****************************************************************************
3928 Calculate how big a read can be. Copes with all clients. It's always
3929 safe to return a short read - Windows does this.
3930 ****************************************************************************/
3931
3932 static size_t calc_read_size(const struct smb_request *req,
3933 size_t upper_size,
3934 size_t lower_size)
3935 {
3936 size_t max_pdu = calc_max_read_pdu(req);
3937 size_t total_size = 0;
3938 size_t hdr_len = MIN_SMB_SIZE + VWV(12);
3939 size_t max_len = max_pdu - hdr_len;
3940
3941 /*
3942 * Windows explicitly ignores upper size of 0xFFFF.
3943 * See [MS-SMB].pdf <26> Section 2.2.4.2.1:
3944 * We must do the same as these will never fit even in
3945 * an extended size NetBIOS packet.
3946 */
3947 if (upper_size == 0xFFFF) {
3948 upper_size = 0;
3949 }
3950
3951 if (req->sconn->conn->protocol < PROTOCOL_NT1) {
3952 upper_size = 0;
3953 }
3954
3955 total_size = ((upper_size<<16) | lower_size);
3956
3957 /*
3958 * LARGE_READX test shows it's always safe to return
3959 * a short read. Windows does so.
3960 */
3961 return MIN(total_size, max_len);
3962 }
3963
3964 /****************************************************************************
3965 Reply to a read and X.
3966 ****************************************************************************/
3967
3968 void reply_read_and_X(struct smb_request *req)
3969 {
3970 connection_struct *conn = req->conn;
3971 files_struct *fsp;
3972 off_t startpos;
3973 size_t smb_maxcnt;
3974 size_t upper_size;
3975 bool big_readX = False;
3976 #if 0
3977 size_t smb_mincnt = SVAL(req->vwv+6, 0);
3978 #endif
3979
3980 START_PROFILE(SMBreadX);
3981
3982 if ((req->wct != 10) && (req->wct != 12)) {
3983 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3984 return;
3985 }
3986
3987 fsp = file_fsp(req, SVAL(req->vwv+2, 0));
3988 startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3989 smb_maxcnt = SVAL(req->vwv+5, 0);
3990
3991 /* If it's an IPC, pass off the pipe handler. */
3992 if (IS_IPC(conn)) {
3993 reply_pipe_read_and_X(req);
3994 END_PROFILE(SMBreadX);
3995 return;
3996 }
3997
3998 if (!check_fsp(conn, req, fsp)) {
3999 END_PROFILE(SMBreadX);
4000 return;
4001 }
4002
4003 if (!CHECK_READ(fsp,req)) {
4004 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4005 END_PROFILE(SMBreadX);
4006 return;
4007 }
4008
4009 upper_size = SVAL(req->vwv+7, 0);
4010 smb_maxcnt = calc_read_size(req, upper_size, smb_maxcnt);
4011 if (smb_maxcnt > (0x1FFFF - (MIN_SMB_SIZE + VWV(12)))) {
4012 /*
4013 * This is a heuristic to avoid keeping large
4014 * outgoing buffers around over long-lived aio
4015 * requests.
4016 */
4017 big_readX = True;
4018 }
4019
4020 if (req->wct == 12) {
4021 /*
4022 * This is a large offset (64 bit) read.
4023 */
4024 startpos |= (((off_t)IVAL(req->vwv+10, 0)) << 32);
4025
4026 }
4027
4028 if (!big_readX) {
4029 NTSTATUS status = schedule_aio_read_and_X(conn,
4030 req,
4031 fsp,
4032 startpos,
4033 smb_maxcnt);
4034 if (NT_STATUS_IS_OK(status)) {
4035 /* Read scheduled - we're done. */
4036 goto out;
4037 }
4038 if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
4039 /* Real error - report to client. */
4040 END_PROFILE(SMBreadX);
4041 reply_nterror(req, status);
4042 return;
4043 }
4044 /* NT_STATUS_RETRY - fall back to sync read. */
4045 }
4046
4047 smbd_lock_socket(req->sconn);
4048 send_file_readX(conn, req, fsp, startpos, smb_maxcnt);
4049 smbd_unlock_socket(req->sconn);
4050
4051 out:
4052 END_PROFILE(SMBreadX);
4053 return;
4054 }
4055
4056 /****************************************************************************
4057 Error replies to writebraw must have smb_wct == 1. Fix this up.
4058 ****************************************************************************/
4059
4060 void error_to_writebrawerr(struct smb_request *req)
4061 {
4062 uint8 *old_outbuf = req->outbuf;
4063
4064 reply_outbuf(req, 1, 0);
4065
4066 memcpy(req->outbuf, old_outbuf, smb_size);
4067 TALLOC_FREE(old_outbuf);
4068 }
4069
4070 /****************************************************************************
4071 Read 4 bytes of a smb packet and return the smb length of the packet.
4072 Store the result in the buffer. This version of the function will
4073 never return a session keepalive (length of zero).
4074 Timeout is in milliseconds.
4075 ****************************************************************************/
4076
4077 static NTSTATUS read_smb_length(int fd, char *inbuf, unsigned int timeout,
4078 size_t *len)
4079 {
4080 uint8_t msgtype = NBSSkeepalive;
4081
4082 while (msgtype == NBSSkeepalive) {
4083 NTSTATUS status;
4084
4085 status = read_smb_length_return_keepalive(fd, inbuf, timeout,
4086 len);
4087 if (!NT_STATUS_IS_OK(status)) {
4088 char addr[INET6_ADDRSTRLEN];
4089 /* Try and give an error message
4090 * saying what client failed. */
4091 DEBUG(0, ("read_fd_with_timeout failed for "
4092 "client %s read error = %s.\n",
4093 get_peer_addr(fd,addr,sizeof(addr)),
4094 nt_errstr(status)));
4095 return status;
4096 }
4097
4098 msgtype = CVAL(inbuf, 0);
4099 }
4100
4101 DEBUG(10,("read_smb_length: got smb length of %lu\n",
4102 (unsigned long)len));
4103
4104 return NT_STATUS_OK;
4105 }
4106
4107 /****************************************************************************
4108 Reply to a writebraw (core+ or LANMAN1.0 protocol).
4109 ****************************************************************************/
4110
4111 void reply_writebraw(struct smb_request *req)
4112 {
4113 connection_struct *conn = req->conn;
4114 char *buf = NULL;
4115 ssize_t nwritten=0;
4116 ssize_t total_written=0;
4117 size_t numtowrite=0;
4118 size_t tcount;
4119 off_t startpos;
4120 const char *data=NULL;
4121 bool write_through;
4122 files_struct *fsp;
4123 struct lock_struct lock;
4124 NTSTATUS status;
4125
4126 START_PROFILE(SMBwritebraw);
4127
4128 /*
4129 * If we ever reply with an error, it must have the SMB command
4130 * type of SMBwritec, not SMBwriteBraw, as this tells the client
4131 * we're finished.
4132 */
4133 SCVAL(discard_const_p(uint8_t, req->inbuf),smb_com,SMBwritec);
4134
4135 if (srv_is_signing_active(req->sconn)) {
4136 END_PROFILE(SMBwritebraw);
4137 exit_server_cleanly("reply_writebraw: SMB signing is active - "
4138 "raw reads/writes are disallowed.");
4139 }
4140
4141 if (req->wct < 12) {
4142 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4143 error_to_writebrawerr(req);
4144 END_PROFILE(SMBwritebraw);
4145 return;
4146 }
4147
4148 if (req->sconn->smb1.echo_handler.trusted_fde) {
4149 DEBUG(2,("SMBwritebraw rejected with NOT_SUPPORTED because of "
4150 "'async smb echo handler = yes'\n"));
4151 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
4152 error_to_writebrawerr(req);
4153 END_PROFILE(SMBwritebraw);
4154 return;
4155 }
4156
4157 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4158 if (!check_fsp(conn, req, fsp)) {
4159 error_to_writebrawerr(req);
4160 END_PROFILE(SMBwritebraw);
4161 return;
4162 }
4163
4164 if (!CHECK_WRITE(fsp)) {
4165 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4166 error_to_writebrawerr(req);
4167 END_PROFILE(SMBwritebraw);
4168 return;
4169 }
4170
4171 tcount = IVAL(req->vwv+1, 0);
4172 startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
4173 write_through = BITSETW(req->vwv+7,0);
4174
4175 /* We have to deal with slightly different formats depending
4176 on whether we are using the core+ or lanman1.0 protocol */
4177
4178 if(get_Protocol() <= PROTOCOL_COREPLUS) {
4179 numtowrite = SVAL(smb_buf_const(req->inbuf),-2);
4180 data = smb_buf_const(req->inbuf);
4181 } else {
4182 numtowrite = SVAL(req->vwv+10, 0);
4183 data = smb_base(req->inbuf) + SVAL(req->vwv+11, 0);
4184 }
4185
4186 /* Ensure we don't write bytes past the end of this packet. */
4187 if (data + numtowrite > smb_base(req->inbuf) + smb_len(req->inbuf)) {
4188 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4189 error_to_writebrawerr(req);
4190 END_PROFILE(SMBwritebraw);
4191 return;
4192 }
4193
4194 if (!fsp->print_file) {
4195 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4196 (uint64_t)startpos, (uint64_t)tcount, WRITE_LOCK,
4197 &lock);
4198
4199 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4200 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4201 error_to_writebrawerr(req);
4202 END_PROFILE(SMBwritebraw);
4203 return;
4204 }
4205 }
4206
4207 if (numtowrite>0) {
4208 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4209 }
4210
4211 DEBUG(3, ("reply_writebraw: initial write %s start=%.0f num=%d "
4212 "wrote=%d sync=%d\n",
4213 fsp_fnum_dbg(fsp), (double)startpos, (int)numtowrite,
4214 (int)nwritten, (int)write_through));
4215
4216 if (nwritten < (ssize_t)numtowrite) {
4217 reply_nterror(req, NT_STATUS_DISK_FULL);
4218 error_to_writebrawerr(req);
4219 goto strict_unlock;
4220 }
4221
4222 total_written = nwritten;
4223
4224 /* Allocate a buffer of 64k + length. */
4225 buf = talloc_array(NULL, char, 65540);
4226 if (!buf) {
4227 reply_nterror(req, NT_STATUS_NO_MEMORY);
4228 error_to_writebrawerr(req);
4229 goto strict_unlock;
4230 }
4231
4232 /* Return a SMBwritebraw message to the redirector to tell
4233 * it to send more bytes */
4234
4235 memcpy(buf, req->inbuf, smb_size);
4236 srv_set_message(buf,get_Protocol()>PROTOCOL_COREPLUS?1:0,0,True);
4237 SCVAL(buf,smb_com,SMBwritebraw);
4238 SSVALS(buf,smb_vwv0,0xFFFF);
4239 show_msg(buf);
4240 if (!srv_send_smb(req->sconn,
4241 buf,
4242 false, 0, /* no signing */
4243 IS_CONN_ENCRYPTED(conn),
4244 &req->pcd)) {
4245 exit_server_cleanly("reply_writebraw: srv_send_smb "
4246 "failed.");
4247 }
4248
4249 /* Now read the raw data into the buffer and write it */
4250 status = read_smb_length(req->sconn->sock, buf, SMB_SECONDARY_WAIT,
4251 &numtowrite);
4252 if (!NT_STATUS_IS_OK(status)) {
4253 exit_server_cleanly("secondary writebraw failed");
4254 }
4255
4256 /* Set up outbuf to return the correct size */
4257 reply_outbuf(req, 1, 0);
4258
4259 if (numtowrite != 0) {
4260
4261 if (numtowrite > 0xFFFF) {
4262 DEBUG(0,("reply_writebraw: Oversize secondary write "
4263 "raw requested (%u). Terminating\n",
4264 (unsigned int)numtowrite ));
4265 exit_server_cleanly("secondary writebraw failed");
4266 }
4267
4268 if (tcount > nwritten+numtowrite) {
4269 DEBUG(3,("reply_writebraw: Client overestimated the "
4270 "write %d %d %d\n",
4271 (int)tcount,(int)nwritten,(int)numtowrite));
4272 }
4273
4274 status = read_data(req->sconn->sock, buf+4, numtowrite);
4275
4276 if (!NT_STATUS_IS_OK(status)) {
4277 char addr[INET6_ADDRSTRLEN];
4278 /* Try and give an error message
4279 * saying what client failed. */
4280 DEBUG(0, ("reply_writebraw: Oversize secondary write "
4281 "raw read failed (%s) for client %s. "
4282 "Terminating\n", nt_errstr(status),
4283 get_peer_addr(req->sconn->sock, addr,
4284 sizeof(addr))));
4285 exit_server_cleanly("secondary writebraw failed");
4286 }
4287
4288 nwritten = write_file(req,fsp,buf+4,startpos+nwritten,numtowrite);
4289 if (nwritten == -1) {
4290 TALLOC_FREE(buf);
4291 reply_nterror(req, map_nt_error_from_unix(errno));
4292 error_to_writebrawerr(req);
4293 goto strict_unlock;
4294 }
4295
4296 if (nwritten < (ssize_t)numtowrite) {
4297 SCVAL(req->outbuf,smb_rcls,ERRHRD);
4298 SSVAL(req->outbuf,smb_err,ERRdiskfull);
4299 }
4300
4301 if (nwritten > 0) {
4302 total_written += nwritten;
4303 }
4304 }
4305
4306 TALLOC_FREE(buf);
4307 SSVAL(req->outbuf,smb_vwv0,total_written);
4308
4309 status = sync_file(conn, fsp, write_through);
4310 if (!NT_STATUS_IS_OK(status)) {
4311 DEBUG(5,("reply_writebraw: sync_file for %s returned %s\n",
4312 fsp_str_dbg(fsp), nt_errstr(status)));
4313 reply_nterror(req, status);
4314 error_to_writebrawerr(req);
4315 goto strict_unlock;
4316 }
4317
4318 DEBUG(3,("reply_writebraw: secondart write %s start=%.0f num=%d "
4319 "wrote=%d\n",
4320 fsp_fnum_dbg(fsp), (double)startpos, (int)numtowrite,
4321 (int)total_written));
4322
4323 if (!fsp->print_file) {
4324 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4325 }
4326
4327 /* We won't return a status if write through is not selected - this
4328 * follows what WfWg does */
4329 END_PROFILE(SMBwritebraw);
4330
4331 if (!write_through && total_written==tcount) {
4332
4333 #if RABBIT_PELLET_FIX
4334 /*
4335 * Fix for "rabbit pellet" mode, trigger an early TCP ack by
4336 * sending a NBSSkeepalive. Thanks to DaveCB at Sun for this.
4337 * JRA.
4338 */
4339 if (!send_keepalive(req->sconn->sock)) {
4340 exit_server_cleanly("reply_writebraw: send of "
4341 "keepalive failed");
4342 }
4343 #endif
4344 TALLOC_FREE(req->outbuf);
4345 }
4346 return;
4347
4348 strict_unlock:
4349 if (!fsp->print_file) {
4350 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4351 }
4352
4353 END_PROFILE(SMBwritebraw);
4354 return;
4355 }
4356
4357 #undef DBGC_CLASS
4358 #define DBGC_CLASS DBGC_LOCKING
4359
4360 /****************************************************************************
4361 Reply to a writeunlock (core+).
4362 ****************************************************************************/
4363
4364 void reply_writeunlock(struct smb_request *req)
4365 {
4366 connection_struct *conn = req->conn;
4367 ssize_t nwritten = -1;
4368 size_t numtowrite;
4369 off_t startpos;
4370 const char *data;
4371 NTSTATUS status = NT_STATUS_OK;
4372 files_struct *fsp;
4373 struct lock_struct lock;
4374 int saved_errno = 0;
4375
4376 START_PROFILE(SMBwriteunlock);
4377
4378 if (req->wct < 5) {
4379 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4380 END_PROFILE(SMBwriteunlock);
4381 return;
4382 }
4383
4384 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4385
4386 if (!check_fsp(conn, req, fsp)) {
4387 END_PROFILE(SMBwriteunlock);
4388 return;
4389 }
4390
4391 if (!CHECK_WRITE(fsp)) {
4392 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4393 END_PROFILE(SMBwriteunlock);
4394 return;
4395 }
4396
4397 numtowrite = SVAL(req->vwv+1, 0);
4398 startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4399 data = (const char *)req->buf + 3;
4400
4401 if (!fsp->print_file && numtowrite > 0) {
4402 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4403 (uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4404 &lock);
4405
4406 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4407 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4408 END_PROFILE(SMBwriteunlock);
4409 return;
4410 }
4411 }
4412
4413 /* The special X/Open SMB protocol handling of
4414 zero length writes is *NOT* done for
4415 this call */
4416 if(numtowrite == 0) {
4417 nwritten = 0;
4418 } else {
4419 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4420 saved_errno = errno;
4421 }
4422
4423 status = sync_file(conn, fsp, False /* write through */);
4424 if (!NT_STATUS_IS_OK(status)) {
4425 DEBUG(5,("reply_writeunlock: sync_file for %s returned %s\n",
4426 fsp_str_dbg(fsp), nt_errstr(status)));
4427 reply_nterror(req, status);
4428 goto strict_unlock;
4429 }
4430
4431 if(nwritten < 0) {
4432 reply_nterror(req, map_nt_error_from_unix(saved_errno));
4433 goto strict_unlock;
4434 }
4435
4436 if((nwritten < numtowrite) && (numtowrite != 0)) {
4437 reply_nterror(req, NT_STATUS_DISK_FULL);
4438 goto strict_unlock;
4439 }
4440
4441 if (numtowrite && !fsp->print_file) {
4442 status = do_unlock(req->sconn->msg_ctx,
4443 fsp,
4444 (uint64_t)req->smbpid,
4445 (uint64_t)numtowrite,
4446 (uint64_t)startpos,
4447 WINDOWS_LOCK);
4448
4449 if (NT_STATUS_V(status)) {
4450 reply_nterror(req, status);
4451 goto strict_unlock;
4452 }
4453 }
4454
4455 reply_outbuf(req, 1, 0);
4456
4457 SSVAL(req->outbuf,smb_vwv0,nwritten);
4458
4459 DEBUG(3, ("writeunlock %s num=%d wrote=%d\n",
4460 fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
4461
4462 strict_unlock:
4463 if (numtowrite && !fsp->print_file) {
4464 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4465 }
4466
4467 END_PROFILE(SMBwriteunlock);
4468 return;
4469 }
4470
4471 #undef DBGC_CLASS
4472 #define DBGC_CLASS DBGC_ALL
4473
4474 /****************************************************************************
4475 Reply to a write.
4476 ****************************************************************************/
4477
4478 void reply_write(struct smb_request *req)
4479 {
4480 connection_struct *conn = req->conn;
4481 size_t numtowrite;
4482 ssize_t nwritten = -1;
4483 off_t startpos;
4484 const char *data;
4485 files_struct *fsp;
4486 struct lock_struct lock;
4487 NTSTATUS status;
4488 int saved_errno = 0;
4489
4490 START_PROFILE(SMBwrite);
4491
4492 if (req->wct < 5) {
4493 END_PROFILE(SMBwrite);
4494 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4495 return;
4496 }
4497
4498 /* If it's an IPC, pass off the pipe handler. */
4499 if (IS_IPC(conn)) {
4500 reply_pipe_write(req);
4501 END_PROFILE(SMBwrite);
4502 return;
4503 }
4504
4505 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4506
4507 if (!check_fsp(conn, req, fsp)) {
4508 END_PROFILE(SMBwrite);
4509 return;
4510 }
4511
4512 if (!CHECK_WRITE(fsp)) {
4513 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4514 END_PROFILE(SMBwrite);
4515 return;
4516 }
4517
4518 numtowrite = SVAL(req->vwv+1, 0);
4519 startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4520 data = (const char *)req->buf + 3;
4521
4522 if (!fsp->print_file) {
4523 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4524 (uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4525 &lock);
4526
4527 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4528 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4529 END_PROFILE(SMBwrite);
4530 return;
4531 }
4532 }
4533
4534 /*
4535 * X/Open SMB protocol says that if smb_vwv1 is
4536 * zero then the file size should be extended or
4537 * truncated to the size given in smb_vwv[2-3].
4538 */
4539
4540 if(numtowrite == 0) {
4541 /*
4542 * This is actually an allocate call, and set EOF. JRA.
4543 */
4544 nwritten = vfs_allocate_file_space(fsp, (off_t)startpos);
4545 if (nwritten < 0) {
4546 reply_nterror(req, NT_STATUS_DISK_FULL);
4547 goto strict_unlock;
4548 }
4549 nwritten = vfs_set_filelen(fsp, (off_t)startpos);
4550 if (nwritten < 0) {
4551 reply_nterror(req, NT_STATUS_DISK_FULL);
4552 goto strict_unlock;
4553 }
4554 trigger_write_time_update_immediate(fsp);
4555 } else {
4556 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4557 }
4558
4559 status = sync_file(conn, fsp, False);
4560 if (!NT_STATUS_IS_OK(status)) {
4561 DEBUG(5,("reply_write: sync_file for %s returned %s\n",
4562 fsp_str_dbg(fsp), nt_errstr(status)));
4563 reply_nterror(req, status);
4564 goto strict_unlock;
4565 }
4566
4567 if(nwritten < 0) {
4568 reply_nterror(req, map_nt_error_from_unix(saved_errno));
4569 goto strict_unlock;
4570 }
4571
4572 if((nwritten == 0) && (numtowrite != 0)) {
4573 reply_nterror(req, NT_STATUS_DISK_FULL);
4574 goto strict_unlock;
4575 }
4576
4577 reply_outbuf(req, 1, 0);
4578
4579 SSVAL(req->outbuf,smb_vwv0,nwritten);
4580
4581 if (nwritten < (ssize_t)numtowrite) {
4582 SCVAL(req->outbuf,smb_rcls,ERRHRD);
4583 SSVAL(req->outbuf,smb_err,ERRdiskfull);
4584 }
4585
4586 DEBUG(3, ("write %s num=%d wrote=%d\n", fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
4587
4588 strict_unlock:
4589 if (!fsp->print_file) {
4590 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4591 }
4592
4593 END_PROFILE(SMBwrite);
4594 return;
4595 }
4596
4597 /****************************************************************************
4598 Ensure a buffer is a valid writeX for recvfile purposes.
4599 ****************************************************************************/
4600
4601 #define STANDARD_WRITE_AND_X_HEADER_SIZE (smb_size - 4 + /* basic header */ \
4602 (2*14) + /* word count (including bcc) */ \
4603 1 /* pad byte */)
4604
4605 bool is_valid_writeX_buffer(struct smbd_server_connection *sconn,
4606 const uint8_t *inbuf)
4607 {
4608 size_t numtowrite;
4609 connection_struct *conn = NULL;
4610 unsigned int doff = 0;
4611 size_t len = smb_len_large(inbuf);
4612 struct smbXsrv_tcon *tcon;
4613 NTSTATUS status;
4614 NTTIME now = 0;
4615
4616 if (is_encrypted_packet(sconn, inbuf)) {
4617 /* Can't do this on encrypted
4618 * connections. */
4619 return false;
4620 }
4621
4622 if (CVAL(inbuf,smb_com) != SMBwriteX) {
4623 return false;
4624 }
4625
4626 if (CVAL(inbuf,smb_vwv0) != 0xFF ||
4627 CVAL(inbuf,smb_wct) != 14) {
4628 DEBUG(10,("is_valid_writeX_buffer: chained or "
4629 "invalid word length.\n"));
4630 return false;
4631 }
4632
4633 status = smb1srv_tcon_lookup(sconn->conn, SVAL(inbuf, smb_tid),
4634 now, &tcon);
4635 if (!NT_STATUS_IS_OK(status)) {
4636 DEBUG(10,("is_valid_writeX_buffer: bad tid\n"));
4637 return false;
4638 }
4639 conn = tcon->compat;
4640
4641 if (IS_IPC(conn)) {
4642 DEBUG(10,("is_valid_writeX_buffer: IPC$ tid\n"));
4643 return false;
4644 }
4645 if (IS_PRINT(conn)) {
4646 DEBUG(10,("is_valid_writeX_buffer: printing tid\n"));
4647 return false;
4648 }
4649 doff = SVAL(inbuf,smb_vwv11);
4650
4651 numtowrite = SVAL(inbuf,smb_vwv10);
4652
4653 if (len > doff && len - doff > 0xFFFF) {
4654 numtowrite |= (((size_t)SVAL(inbuf,smb_vwv9))<<16);
4655 }
4656
4657 if (numtowrite == 0) {
4658 DEBUG(10,("is_valid_writeX_buffer: zero write\n"));
4659 return false;
4660 }
4661
4662 /* Ensure the sizes match up. */
4663 if (doff < STANDARD_WRITE_AND_X_HEADER_SIZE) {
4664 /* no pad byte...old smbclient :-( */
4665 DEBUG(10,("is_valid_writeX_buffer: small doff %u (min %u)\n",
4666 (unsigned int)doff,
4667 (unsigned int)STANDARD_WRITE_AND_X_HEADER_SIZE));
4668 return false;
4669 }
4670
4671 if (len - doff != numtowrite) {
4672 DEBUG(10,("is_valid_writeX_buffer: doff mismatch "
4673 "len = %u, doff = %u, numtowrite = %u\n",
4674 (unsigned int)len,
4675 (unsigned int)doff,
4676 (unsigned int)numtowrite ));
4677 return false;
4678 }
4679
4680 DEBUG(10,("is_valid_writeX_buffer: true "
4681 "len = %u, doff = %u, numtowrite = %u\n",
4682 (unsigned int)len,
4683 (unsigned int)doff,
4684 (unsigned int)numtowrite ));
4685
4686 return true;
4687 }
4688
4689 /****************************************************************************
4690 Reply to a write and X.
4691 ****************************************************************************/
4692
4693 void reply_write_and_X(struct smb_request *req)
4694 {
4695 connection_struct *conn = req->conn;
4696 files_struct *fsp;
4697 struct lock_struct lock;
4698 off_t startpos;
4699 size_t numtowrite;
4700 bool write_through;
4701 ssize_t nwritten;
4702 unsigned int smb_doff;
4703 unsigned int smblen;
4704 const char *data;
4705 NTSTATUS status;
4706 int saved_errno = 0;
4707
4708 START_PROFILE(SMBwriteX);
4709
4710 if ((req->wct != 12) && (req->wct != 14)) {
4711 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4712 goto out;
4713 }
4714
4715 numtowrite = SVAL(req->vwv+10, 0);
4716 smb_doff = SVAL(req->vwv+11, 0);
4717 smblen = smb_len(req->inbuf);
4718
4719 if (req->unread_bytes > 0xFFFF ||
4720 (smblen > smb_doff &&
4721 smblen - smb_doff > 0xFFFF)) {
4722 numtowrite |= (((size_t)SVAL(req->vwv+9, 0))<<16);
4723 }
4724
4725 if (req->unread_bytes) {
4726 /* Can't do a recvfile write on IPC$ */
4727 if (IS_IPC(conn)) {
4728 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4729 goto out;
4730 }
4731 if (numtowrite != req->unread_bytes) {
4732 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4733 goto out;
4734 }
4735 } else {
4736 if (smb_doff > smblen || smb_doff + numtowrite < numtowrite ||
4737 smb_doff + numtowrite > smblen) {
4738 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4739 goto out;
4740 }
4741 }
4742
4743 /* If it's an IPC, pass off the pipe handler. */
4744 if (IS_IPC(conn)) {
4745 if (req->unread_bytes) {
4746 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4747 goto out;
4748 }
4749 reply_pipe_write_and_X(req);
4750 goto out;
4751 }
4752
4753 fsp = file_fsp(req, SVAL(req->vwv+2, 0));
4754 startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
4755 write_through = BITSETW(req->vwv+7,0);
4756
4757 if (!check_fsp(conn, req, fsp)) {
4758 goto out;
4759 }
4760
4761 if (!CHECK_WRITE(fsp)) {
4762 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4763 goto out;
4764 }
4765
4766 data = smb_base(req->inbuf) + smb_doff;
4767
4768 if(req->wct == 14) {
4769 /*
4770 * This is a large offset (64 bit) write.
4771 */
4772 startpos |= (((off_t)IVAL(req->vwv+12, 0)) << 32);
4773
4774 }
4775
4776 /* X/Open SMB protocol says that, unlike SMBwrite
4777 if the length is zero then NO truncation is
4778 done, just a write of zero. To truncate a file,
4779 use SMBwrite. */
4780
4781 if(numtowrite == 0) {
4782 nwritten = 0;
4783 } else {
4784 if (req->unread_bytes == 0) {
4785 status = schedule_aio_write_and_X(conn,
4786 req,
4787 fsp,
4788 data,
4789 startpos,
4790 numtowrite);
4791
4792 if (NT_STATUS_IS_OK(status)) {
4793 /* write scheduled - we're done. */
4794 goto out;
4795 }
4796 if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
4797 /* Real error - report to client. */
4798 reply_nterror(req, status);
4799 goto out;
4800 }
4801 /* NT_STATUS_RETRY - fall through to sync write. */
4802 }
4803
4804 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4805 (uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4806 &lock);
4807
4808 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4809 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4810 goto out;
4811 }
4812
4813 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4814 saved_errno = errno;
4815
4816 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4817 }
4818
4819 if(nwritten < 0) {
4820 reply_nterror(req, map_nt_error_from_unix(saved_errno));
4821 goto out;
4822 }
4823
4824 if((nwritten == 0) && (numtowrite != 0)) {
4825 reply_nterror(req, NT_STATUS_DISK_FULL);
4826 goto out;
4827 }
4828
4829 reply_outbuf(req, 6, 0);
4830 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
4831 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
4832 SSVAL(req->outbuf,smb_vwv2,nwritten);
4833 SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
4834
4835 DEBUG(3,("writeX %s num=%d wrote=%d\n",
4836 fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
4837
4838 status = sync_file(conn, fsp, write_through);
4839 if (!NT_STATUS_IS_OK(status)) {
4840 DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
4841 fsp_str_dbg(fsp), nt_errstr(status)));
4842 reply_nterror(req, status);
4843 goto out;
4844 }
4845
4846 END_PROFILE(SMBwriteX);
4847 return;
4848
4849 out:
4850 if (req->unread_bytes) {
4851 /* writeX failed. drain socket. */
4852 if (drain_socket(req->sconn->sock, req->unread_bytes) !=
4853 req->unread_bytes) {
4854 smb_panic("failed to drain pending bytes");
4855 }
4856 req->unread_bytes = 0;
4857 }
4858
4859 END_PROFILE(SMBwriteX);
4860 return;
4861 }
4862
4863 /****************************************************************************
4864 Reply to a lseek.
4865 ****************************************************************************/
4866
4867 void reply_lseek(struct smb_request *req)
4868 {
4869 connection_struct *conn = req->conn;
4870 off_t startpos;
4871 off_t res= -1;
4872 int mode,umode;
4873 files_struct *fsp;
4874
4875 START_PROFILE(SMBlseek);
4876
4877 if (req->wct < 4) {
4878 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4879 END_PROFILE(SMBlseek);
4880 return;
4881 }
4882
4883 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4884
4885 if (!check_fsp(conn, req, fsp)) {
4886 return;
4887 }
4888
4889 flush_write_cache(fsp, SEEK_FLUSH);
4890
4891 mode = SVAL(req->vwv+1, 0) & 3;
4892 /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
4893 startpos = (off_t)IVALS(req->vwv+2, 0);
4894
4895 switch (mode) {
4896 case 0:
4897 umode = SEEK_SET;
4898 res = startpos;
4899 break;
4900 case 1:
4901 umode = SEEK_CUR;
4902 res = fsp->fh->pos + startpos;
4903 break;
4904 case 2:
4905 umode = SEEK_END;
4906 break;
4907 default:
4908 umode = SEEK_SET;
4909 res = startpos;
4910 break;
4911 }
4912
4913 if (umode == SEEK_END) {
4914 if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
4915 if(errno == EINVAL) {
4916 off_t current_pos = startpos;
4917
4918 if(fsp_stat(fsp) == -1) {
4919 reply_nterror(req,
4920 map_nt_error_from_unix(errno));
4921 END_PROFILE(SMBlseek);
4922 return;
4923 }
4924
4925 current_pos += fsp->fsp_name->st.st_ex_size;
4926 if(current_pos < 0)
4927 res = SMB_VFS_LSEEK(fsp,0,SEEK_SET);
4928 }
4929 }
4930
4931 if(res == -1) {
4932 reply_nterror(req, map_nt_error_from_unix(errno));
4933 END_PROFILE(SMBlseek);
4934 return;
4935 }
4936 }
4937
4938 fsp->fh->pos = res;
4939
4940 reply_outbuf(req, 2, 0);
4941 SIVAL(req->outbuf,smb_vwv0,res);
4942
4943 DEBUG(3,("lseek %s ofs=%.0f newpos = %.0f mode=%d\n",
4944 fsp_fnum_dbg(fsp), (double)startpos, (double)res, mode));
4945
4946 END_PROFILE(SMBlseek);
4947 return;
4948 }
4949
4950 /****************************************************************************
4951 Reply to a flush.
4952 ****************************************************************************/
4953
4954 void reply_flush(struct smb_request *req)
4955 {
4956 connection_struct *conn = req->conn;
4957 uint16 fnum;
4958 files_struct *fsp;
4959
4960 START_PROFILE(SMBflush);
4961
4962 if (req->wct < 1) {
4963 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4964 return;
4965 }
4966
4967 fnum = SVAL(req->vwv+0, 0);
4968 fsp = file_fsp(req, fnum);
4969
4970 if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp)) {
4971 return;
4972 }
4973
4974 if (!fsp) {
4975 file_sync_all(conn);
4976 } else {
4977 NTSTATUS status = sync_file(conn, fsp, True);
4978 if (!NT_STATUS_IS_OK(status)) {
4979 DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
4980 fsp_str_dbg(fsp), nt_errstr(status)));
4981 reply_nterror(req, status);
4982 END_PROFILE(SMBflush);
4983 return;
4984 }
4985 }
4986
4987 reply_outbuf(req, 0, 0);
4988
4989 DEBUG(3,("flush\n"));
4990 END_PROFILE(SMBflush);
4991 return;
4992 }
4993
4994 /****************************************************************************
4995 Reply to a exit.
4996 conn POINTER CAN BE NULL HERE !
4997 ****************************************************************************/
4998
4999 void reply_exit(struct smb_request *req)
5000 {
5001 START_PROFILE(SMBexit);
5002
5003 file_close_pid(req->sconn, req->smbpid, req->vuid);
5004
5005 reply_outbuf(req, 0, 0);
5006
5007 DEBUG(3,("exit\n"));
5008
5009 END_PROFILE(SMBexit);
5010 return;
5011 }
5012
5013 struct reply_close_state {
5014 files_struct *fsp;
5015 struct smb_request *smbreq;
5016 };
5017
5018 static void do_smb1_close(struct tevent_req *req);
5019
5020 void reply_close(struct smb_request *req)
5021 {
5022 connection_struct *conn = req->conn;
5023 NTSTATUS status = NT_STATUS_OK;
5024 files_struct *fsp = NULL;
5025 START_PROFILE(SMBclose);
5026
5027 if (req->wct < 3) {
5028 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5029 END_PROFILE(SMBclose);
5030 return;
5031 }
5032
5033 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5034
5035 /*
5036 * We can only use check_fsp if we know it's not a directory.
5037 */
5038
5039 if (!check_fsp_open(conn, req, fsp)) {
5040 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
5041 END_PROFILE(SMBclose);
5042 return;
5043 }
5044
5045 DEBUG(3, ("Close %s fd=%d %s (numopen=%d)\n",
5046 fsp->is_directory ? "directory" : "file",
5047 fsp->fh->fd, fsp_fnum_dbg(fsp),
5048 conn->num_files_open));
5049
5050 if (!fsp->is_directory) {
5051 time_t t;
5052
5053 /*
5054 * Take care of any time sent in the close.
5055 */
5056
5057 t = srv_make_unix_date3(req->vwv+1);
5058 set_close_write_time(fsp, convert_time_t_to_timespec(t));
5059 }
5060
5061 if (fsp->num_aio_requests != 0) {
5062
5063 struct reply_close_state *state;
5064
5065 DEBUG(10, ("closing with aio %u requests pending\n",
5066 fsp->num_aio_requests));
5067
5068 /*
5069 * We depend on the aio_extra destructor to take care of this
5070 * close request once fsp->num_aio_request drops to 0.
5071 */
5072
5073 fsp->deferred_close = tevent_wait_send(
5074 fsp, fsp->conn->sconn->ev_ctx);
5075 if (fsp->deferred_close == NULL) {
5076 status = NT_STATUS_NO_MEMORY;
5077 goto done;
5078 }
5079
5080 state = talloc(fsp, struct reply_close_state);
5081 if (state == NULL) {
5082 TALLOC_FREE(fsp->deferred_close);
5083 status = NT_STATUS_NO_MEMORY;
5084 goto done;
5085 }
5086 state->fsp = fsp;
5087 state->smbreq = talloc_move(fsp, &req);
5088 tevent_req_set_callback(fsp->deferred_close, do_smb1_close,
5089 state);
5090 END_PROFILE(SMBclose);
5091 return;
5092 }
5093
5094 /*
5095 * close_file() returns the unix errno if an error was detected on
5096 * close - normally this is due to a disk full error. If not then it
5097 * was probably an I/O error.
5098 */
5099
5100 status = close_file(req, fsp, NORMAL_CLOSE);
5101 done:
5102 if (!NT_STATUS_IS_OK(status)) {
5103 reply_nterror(req, status);
5104 END_PROFILE(SMBclose);
5105 return;
5106 }
5107
5108 reply_outbuf(req, 0, 0);
5109 END_PROFILE(SMBclose);
5110 return;
5111 }
5112
5113 static void do_smb1_close(struct tevent_req *req)
5114 {
5115 struct reply_close_state *state = tevent_req_callback_data(
5116 req, struct reply_close_state);
5117 struct smb_request *smbreq;
5118 NTSTATUS status;
5119 int ret;
5120
5121 ret = tevent_wait_recv(req);
5122 TALLOC_FREE(req);
5123 if (ret != 0) {
5124 DEBUG(10, ("tevent_wait_recv returned %s\n",
5125 strerror(ret)));
5126 /*
5127 * Continue anyway, this should never happen
5128 */
5129 }
5130
5131 /*
5132 * fsp->smb2_close_request right now is a talloc grandchild of
5133 * fsp. When we close_file(fsp), it would go with it. No chance to
5134 * reply...
5135 */
5136 smbreq = talloc_move(talloc_tos(), &state->smbreq);
5137
5138 status = close_file(smbreq, state->fsp, NORMAL_CLOSE);
5139 if (NT_STATUS_IS_OK(status)) {
5140 reply_outbuf(smbreq, 0, 0);
5141 } else {
5142 reply_nterror(smbreq, status);
5143 }
5144 if (!srv_send_smb(smbreq->sconn,
5145 (char *)smbreq->outbuf,
5146 true,
5147 smbreq->seqnum+1,
5148 IS_CONN_ENCRYPTED(smbreq->conn)||smbreq->encrypted,
5149 NULL)) {
5150 exit_server_cleanly("handle_aio_read_complete: srv_send_smb "
5151 "failed.");
5152 }
5153 TALLOC_FREE(smbreq);
5154 }
5155
5156 /****************************************************************************
5157 Reply to a writeclose (Core+ protocol).
5158 ****************************************************************************/
5159
5160 void reply_writeclose(struct smb_request *req)
5161 {
5162 connection_struct *conn = req->conn;
5163 size_t numtowrite;
5164 ssize_t nwritten = -1;
5165 NTSTATUS close_status = NT_STATUS_OK;
5166 off_t startpos;
5167 const char *data;
5168 struct timespec mtime;
5169 files_struct *fsp;
5170 struct lock_struct lock;
5171
5172 START_PROFILE(SMBwriteclose);
5173
5174 if (req->wct < 6) {
5175 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5176 END_PROFILE(SMBwriteclose);
5177 return;
5178 }
5179
5180 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5181
5182 if (!check_fsp(conn, req, fsp)) {
5183 END_PROFILE(SMBwriteclose);
5184 return;
5185 }
5186 if (!CHECK_WRITE(fsp)) {
5187 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5188 END_PROFILE(SMBwriteclose);
5189 return;
5190 }
5191
5192 numtowrite = SVAL(req->vwv+1, 0);
5193 startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
5194 mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+4));
5195 data = (const char *)req->buf + 1;
5196
5197 if (!fsp->print_file) {
5198 init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
5199 (uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
5200 &lock);
5201
5202 if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
5203 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
5204 END_PROFILE(SMBwriteclose);
5205 return;
5206 }
5207 }
5208
5209 nwritten = write_file(req,fsp,data,startpos,numtowrite);
5210
5211 set_close_write_time(fsp, mtime);
5212
5213 /*
5214 * More insanity. W2K only closes the file if writelen > 0.
5215 * JRA.
5216 */
5217
5218 if (numtowrite) {
5219 DEBUG(3,("reply_writeclose: zero length write doesn't close "
5220 "file %s\n", fsp_str_dbg(fsp)));
5221 close_status = close_file(req, fsp, NORMAL_CLOSE);
5222 }
5223
5224 DEBUG(3,("writeclose %s num=%d wrote=%d (numopen=%d)\n",
5225 fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten,
5226 conn->num_files_open));
5227
5228 if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
5229 reply_nterror(req, NT_STATUS_DISK_FULL);
5230 goto strict_unlock;
5231 }
5232
5233 if(!NT_STATUS_IS_OK(close_status)) {
5234 reply_nterror(req, close_status);
5235 goto strict_unlock;
5236 }
5237
5238 reply_outbuf(req, 1, 0);
5239
5240 SSVAL(req->outbuf,smb_vwv0,nwritten);
5241
5242 strict_unlock:
5243 if (numtowrite && !fsp->print_file) {
5244 SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
5245 }
5246
5247 END_PROFILE(SMBwriteclose);
5248 return;
5249 }
5250
5251 #undef DBGC_CLASS
5252 #define DBGC_CLASS DBGC_LOCKING
5253
5254 /****************************************************************************
5255 Reply to a lock.
5256 ****************************************************************************/
5257
5258 void reply_lock(struct smb_request *req)
5259 {
5260 connection_struct *conn = req->conn;
5261 uint64_t count,offset;
5262 NTSTATUS status;
5263 files_struct *fsp;
5264 struct byte_range_lock *br_lck = NULL;
5265
5266 START_PROFILE(SMBlock);
5267
5268 if (req->wct < 5) {
5269 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5270 END_PROFILE(SMBlock);
5271 return;
5272 }
5273
5274 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5275
5276 if (!check_fsp(conn, req, fsp)) {
5277 END_PROFILE(SMBlock);
5278 return;
5279 }
5280
5281 count = (uint64_t)IVAL(req->vwv+1, 0);
5282 offset = (uint64_t)IVAL(req->vwv+3, 0);
5283
5284 DEBUG(3,("lock fd=%d %s offset=%.0f count=%.0f\n",
5285 fsp->fh->fd, fsp_fnum_dbg(fsp), (double)offset, (double)count));
5286
5287 br_lck = do_lock(req->sconn->msg_ctx,
5288 fsp,
5289 (uint64_t)req->smbpid,
5290 count,
5291 offset,
5292 WRITE_LOCK,
5293 WINDOWS_LOCK,
5294 False, /* Non-blocking lock. */
5295 &status,
5296 NULL,
5297 NULL);
5298
5299 TALLOC_FREE(br_lck);
5300
5301 if (NT_STATUS_V(status)) {
5302 reply_nterror(req, status);
5303 END_PROFILE(SMBlock);
5304 return;
5305 }
5306
5307 reply_outbuf(req, 0, 0);
5308
5309 END_PROFILE(SMBlock);
5310 return;
5311 }
5312
5313 /****************************************************************************
5314 Reply to a unlock.
5315 ****************************************************************************/
5316
5317 void reply_unlock(struct smb_request *req)
5318 {
5319 connection_struct *conn = req->conn;
5320 uint64_t count,offset;
5321 NTSTATUS status;
5322 files_struct *fsp;
5323
5324 START_PROFILE(SMBunlock);
5325
5326 if (req->wct < 5) {
5327 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5328 END_PROFILE(SMBunlock);
5329 return;
5330 }
5331
5332 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5333
5334 if (!check_fsp(conn, req, fsp)) {
5335 END_PROFILE(SMBunlock);
5336 return;
5337 }
5338
5339 count = (uint64_t)IVAL(req->vwv+1, 0);
5340 offset = (uint64_t)IVAL(req->vwv+3, 0);
5341
5342 status = do_unlock(req->sconn->msg_ctx,
5343 fsp,
5344 (uint64_t)req->smbpid,
5345 count,
5346 offset,
5347 WINDOWS_LOCK);
5348
5349 if (NT_STATUS_V(status)) {
5350 reply_nterror(req, status);
5351 END_PROFILE(SMBunlock);
5352 return;
5353 }
5354
5355 DEBUG( 3, ( "unlock fd=%d %s offset=%.0f count=%.0f\n",
5356 fsp->fh->fd, fsp_fnum_dbg(fsp), (double)offset, (double)count ) );
5357
5358 reply_outbuf(req, 0, 0);
5359
5360 END_PROFILE(SMBunlock);
5361 return;
5362 }
5363
5364 #undef DBGC_CLASS
5365 #define DBGC_CLASS DBGC_ALL
5366
5367 /****************************************************************************
5368 Reply to a tdis.
5369 conn POINTER CAN BE NULL HERE !
5370 ****************************************************************************/
5371
5372 void reply_tdis(struct smb_request *req)
5373 {
5374 NTSTATUS status;
5375 connection_struct *conn = req->conn;
5376 struct smbXsrv_tcon *tcon;
5377
5378 START_PROFILE(SMBtdis);
5379
5380 if (!conn) {
5381 DEBUG(4,("Invalid connection in tdis\n"));
5382 reply_force_doserror(req, ERRSRV, ERRinvnid);
5383 END_PROFILE(SMBtdis);
5384 return;
5385 }
5386
5387 tcon = conn->tcon;
5388 req->conn = NULL;
5389
5390 /*
5391 * TODO: cancel all outstanding requests on the tcon
5392 */
5393 status = smbXsrv_tcon_disconnect(tcon, req->vuid);
5394 if (!NT_STATUS_IS_OK(status)) {
5395 DEBUG(0, ("reply_tdis: "
5396 "smbXsrv_tcon_disconnect() failed: %s\n",
5397 nt_errstr(status)));
5398 /*
5399 * If we hit this case, there is something completely
5400 * wrong, so we better disconnect the transport connection.
5401 */
5402 END_PROFILE(SMBtdis);
5403 exit_server(__location__ ": smbXsrv_tcon_disconnect failed");
5404 return;
5405 }
5406
5407 TALLOC_FREE(tcon);
5408
5409 reply_outbuf(req, 0, 0);
5410 END_PROFILE(SMBtdis);
5411 return;
5412 }
5413
5414 /****************************************************************************
5415 Reply to a echo.
5416 conn POINTER CAN BE NULL HERE !
5417 ****************************************************************************/
5418
5419 void reply_echo(struct smb_request *req)
5420 {
5421 connection_struct *conn = req->conn;
5422 struct smb_perfcount_data local_pcd;
5423 struct smb_perfcount_data *cur_pcd;
5424 int smb_reverb;
5425 int seq_num;
5426
5427 START_PROFILE(SMBecho);
5428
5429 smb_init_perfcount_data(&local_pcd);
5430
5431 if (req->wct < 1) {
5432 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5433 END_PROFILE(SMBecho);
5434 return;
5435 }
5436
5437 smb_reverb = SVAL(req->vwv+0, 0);
5438
5439 reply_outbuf(req, 1, req->buflen);
5440
5441 /* copy any incoming data back out */
5442 if (req->buflen > 0) {
5443 memcpy(smb_buf(req->outbuf), req->buf, req->buflen);
5444 }
5445
5446 if (smb_reverb > 100) {
5447 DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
5448 smb_reverb = 100;
5449 }
5450
5451 for (seq_num = 1 ; seq_num <= smb_reverb ; seq_num++) {
5452
5453 /* this makes sure we catch the request pcd */
5454 if (seq_num == smb_reverb) {
5455 cur_pcd = &req->pcd;
5456 } else {
5457 SMB_PERFCOUNT_COPY_CONTEXT(&req->pcd, &local_pcd);
5458 cur_pcd = &local_pcd;
5459 }
5460
5461 SSVAL(req->outbuf,smb_vwv0,seq_num);
5462
5463 show_msg((char *)req->outbuf);
5464 if (!srv_send_smb(req->sconn,
5465 (char *)req->outbuf,
5466 true, req->seqnum+1,
5467 IS_CONN_ENCRYPTED(conn)||req->encrypted,
5468 cur_pcd))
5469 exit_server_cleanly("reply_echo: srv_send_smb failed.");
5470 }
5471
5472 DEBUG(3,("echo %d times\n", smb_reverb));
5473
5474 TALLOC_FREE(req->outbuf);
5475
5476 END_PROFILE(SMBecho);
5477 return;
5478 }
5479
5480 /****************************************************************************
5481 Reply to a printopen.
5482 ****************************************************************************/
5483
5484 void reply_printopen(struct smb_request *req)
5485 {
5486 connection_struct *conn = req->conn;
5487 files_struct *fsp;
5488 NTSTATUS status;
5489
5490 START_PROFILE(SMBsplopen);
5491
5492 if (req->wct < 2) {
5493 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5494 END_PROFILE(SMBsplopen);
5495 return;
5496 }
5497
5498 if (!CAN_PRINT(conn)) {
5499 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5500 END_PROFILE(SMBsplopen);
5501 return;
5502 }
5503
5504 status = file_new(req, conn, &fsp);
5505 if(!NT_STATUS_IS_OK(status)) {
5506 reply_nterror(req, status);
5507 END_PROFILE(SMBsplopen);
5508 return;
5509 }
5510
5511 /* Open for exclusive use, write only. */
5512 status = print_spool_open(fsp, NULL, req->vuid);
5513
5514 if (!NT_STATUS_IS_OK(status)) {
5515 file_free(req, fsp);
5516 reply_nterror(req, status);
5517 END_PROFILE(SMBsplopen);
5518 return;
5519 }
5520
5521 reply_outbuf(req, 1, 0);
5522 SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
5523
5524 DEBUG(3,("openprint fd=%d %s\n",
5525 fsp->fh->fd, fsp_fnum_dbg(fsp)));
5526
5527 END_PROFILE(SMBsplopen);
5528 return;
5529 }
5530
5531 /****************************************************************************
5532 Reply to a printclose.
5533 ****************************************************************************/
5534
5535 void reply_printclose(struct smb_request *req)
5536 {
5537 connection_struct *conn = req->conn;
5538 files_struct *fsp;
5539 NTSTATUS status;
5540
5541 START_PROFILE(SMBsplclose);
5542
5543 if (req->wct < 1) {
5544 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5545 END_PROFILE(SMBsplclose);
5546 return;
5547 }
5548
5549 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5550
5551 if (!check_fsp(conn, req, fsp)) {
5552 END_PROFILE(SMBsplclose);
5553 return;
5554 }
5555
5556 if (!CAN_PRINT(conn)) {
5557 reply_force_doserror(req, ERRSRV, ERRerror);
5558 END_PROFILE(SMBsplclose);
5559 return;
5560 }
5561
5562 DEBUG(3,("printclose fd=%d %s\n",
5563 fsp->fh->fd, fsp_fnum_dbg(fsp)));
5564
5565 status = close_file(req, fsp, NORMAL_CLOSE);
5566
5567 if(!NT_STATUS_IS_OK(status)) {
5568 reply_nterror(req, status);
5569 END_PROFILE(SMBsplclose);
5570 return;
5571 }
5572
5573 reply_outbuf(req, 0, 0);
5574
5575 END_PROFILE(SMBsplclose);
5576 return;
5577 }
5578
5579 /****************************************************************************
5580 Reply to a printqueue.
5581 ****************************************************************************/
5582
5583 void reply_printqueue(struct smb_request *req)
5584 {
5585 connection_struct *conn = req->conn;
5586 int max_count;
5587 int start_index;
5588
5589 START_PROFILE(SMBsplretq);
5590
5591 if (req->wct < 2) {
5592 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5593 END_PROFILE(SMBsplretq);
5594 return;
5595 }
5596
5597 max_count = SVAL(req->vwv+0, 0);
5598 start_index = SVAL(req->vwv+1, 0);
5599
5600 /* we used to allow the client to get the cnum wrong, but that
5601 is really quite gross and only worked when there was only
5602 one printer - I think we should now only accept it if they
5603 get it right (tridge) */
5604 if (!CAN_PRINT(conn)) {
5605 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5606 END_PROFILE(SMBsplretq);
5607 return;
5608 }
5609
5610 reply_outbuf(req, 2, 3);
5611 SSVAL(req->outbuf,smb_vwv0,0);
5612 SSVAL(req->outbuf,smb_vwv1,0);
5613 SCVAL(smb_buf(req->outbuf),0,1);
5614 SSVAL(smb_buf(req->outbuf),1,0);
5615
5616 DEBUG(3,("printqueue start_index=%d max_count=%d\n",
5617 start_index, max_count));
5618
5619 {
5620 TALLOC_CTX *mem_ctx = talloc_tos();
5621 NTSTATUS status;
5622 WERROR werr;
5623 const char *sharename = lp_servicename(mem_ctx, SNUM(conn));
5624 struct rpc_pipe_client *cli = NULL;
5625 struct dcerpc_binding_handle *b = NULL;
5626 struct policy_handle handle;
5627 struct spoolss_DevmodeContainer devmode_ctr;
5628 union spoolss_JobInfo *info;
5629 uint32_t count;
5630 uint32_t num_to_get;
5631 uint32_t first;
5632 uint32_t i;
5633
5634 ZERO_STRUCT(handle);
5635
5636 status = rpc_pipe_open_interface(conn,
5637 &ndr_table_spoolss.syntax_id,
5638 conn->session_info,
5639 conn->sconn->remote_address,
5640 conn->sconn->msg_ctx,
5641 &cli);
5642 if (!NT_STATUS_IS_OK(status)) {
5643 DEBUG(0, ("reply_printqueue: "
5644 "could not connect to spoolss: %s\n",
5645 nt_errstr(status)));
5646 reply_nterror(req, status);
5647 goto out;
5648 }
5649 b = cli->binding_handle;
5650
5651 ZERO_STRUCT(devmode_ctr);
5652
5653 status = dcerpc_spoolss_OpenPrinter(b, mem_ctx,
5654 sharename,
5655 NULL, devmode_ctr,
5656 SEC_FLAG_MAXIMUM_ALLOWED,
5657 &handle,
5658 &werr);
5659 if (!NT_STATUS_IS_OK(status)) {
5660 reply_nterror(req, status);
5661 goto out;
5662 }
5663 if (!W_ERROR_IS_OK(werr)) {
5664 reply_nterror(req, werror_to_ntstatus(werr));
5665 goto out;
5666 }
5667
5668 werr = rpccli_spoolss_enumjobs(cli, mem_ctx,
5669 &handle,
5670 0, /* firstjob */
5671 0xff, /* numjobs */
5672 2, /* level */
5673 0, /* offered */
5674 &count,
5675 &info);
5676 if (!W_ERROR_IS_OK(werr)) {
5677 reply_nterror(req, werror_to_ntstatus(werr));
5678 goto out;
5679 }
5680
5681 if (max_count > 0) {
5682 first = start_index;
5683 } else {
5684 first = start_index + max_count + 1;
5685 }
5686
5687 if (first >= count) {
5688 num_to_get = first;
5689 } else {
5690 num_to_get = first + MIN(ABS(max_count), count - first);
5691 }
5692
5693 for (i = first; i < num_to_get; i++) {
5694 char blob[28];
5695 char *p = blob;
5696 time_t qtime = spoolss_Time_to_time_t(&info[i].info2.submitted);
5697 int qstatus;
5698 uint16_t qrapjobid = pjobid_to_rap(sharename,
5699 info[i].info2.job_id);
5700
5701 if (info[i].info2.status == JOB_STATUS_PRINTING) {
5702 qstatus = 2;
5703 } else {
5704 qstatus = 3;
5705 }
5706
5707 srv_put_dos_date2(p, 0, qtime);
5708 SCVAL(p, 4, qstatus);
5709 SSVAL(p, 5, qrapjobid);
5710 SIVAL(p, 7, info[i].info2.size);
5711 SCVAL(p, 11, 0);
5712 srvstr_push(blob, req->flags2, p+12,
5713 info[i].info2.notify_name, 16, STR_ASCII);
5714
5715 if (message_push_blob(
5716 &req->outbuf,
5717 data_blob_const(
5718 blob, sizeof(blob))) == -1) {
5719 reply_nterror(req, NT_STATUS_NO_MEMORY);
5720 goto out;
5721 }
5722 }
5723
5724 if (count > 0) {
5725 SSVAL(req->outbuf,smb_vwv0,count);
5726 SSVAL(req->outbuf,smb_vwv1,
5727 (max_count>0?first+count:first-1));
5728 SCVAL(smb_buf(req->outbuf),0,1);
5729 SSVAL(smb_buf(req->outbuf),1,28*count);
5730 }
5731
5732
5733 DEBUG(3, ("%u entries returned in queue\n",
5734 (unsigned)count));
5735
5736 out:
5737 if (b && is_valid_policy_hnd(&handle)) {
5738 dcerpc_spoolss_ClosePrinter(b, mem_ctx, &handle, &werr);
5739 }
5740
5741 }
5742
5743 END_PROFILE(SMBsplretq);
5744 return;
5745 }
5746
5747 /****************************************************************************
5748 Reply to a printwrite.
5749 ****************************************************************************/
5750
5751 void reply_printwrite(struct smb_request *req)
5752 {
5753 connection_struct *conn = req->conn;
5754 int numtowrite;
5755 const char *data;
5756 files_struct *fsp;
5757
5758 START_PROFILE(SMBsplwr);
5759
5760 if (req->wct < 1) {
5761 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5762 END_PROFILE(SMBsplwr);
5763 return;
5764 }
5765
5766 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5767
5768 if (!check_fsp(conn, req, fsp)) {
5769 END_PROFILE(SMBsplwr);
5770 return;
5771 }
5772
5773 if (!fsp->print_file) {
5774 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5775 END_PROFILE(SMBsplwr);
5776 return;
5777 }
5778
5779 if (!CHECK_WRITE(fsp)) {
5780 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5781 END_PROFILE(SMBsplwr);
5782 return;
5783 }
5784
5785 numtowrite = SVAL(req->buf, 1);
5786
5787 if (req->buflen < numtowrite + 3) {
5788 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5789 END_PROFILE(SMBsplwr);
5790 return;
5791 }
5792
5793 data = (const char *)req->buf + 3;
5794
5795 if (write_file(req,fsp,data,(off_t)-1,numtowrite) != numtowrite) {
5796 reply_nterror(req, map_nt_error_from_unix(errno));
5797 END_PROFILE(SMBsplwr);
5798 return;
5799 }
5800
5801 DEBUG(3, ("printwrite %s num=%d\n", fsp_fnum_dbg(fsp), numtowrite));
5802
5803 END_PROFILE(SMBsplwr);
5804 return;
5805 }
5806
5807 /****************************************************************************
5808 Reply to a mkdir.
5809 ****************************************************************************/
5810
5811 void reply_mkdir(struct smb_request *req)
5812 {
5813 connection_struct *conn = req->conn;
5814 struct smb_filename *smb_dname = NULL;
5815 char *directory = NULL;
5816 NTSTATUS status;
5817 TALLOC_CTX *ctx = talloc_tos();
5818
5819 START_PROFILE(SMBmkdir);
5820
5821 srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5822 STR_TERMINATE, &status);
5823 if (!NT_STATUS_IS_OK(status)) {
5824 reply_nterror(req, status);
5825 goto out;
5826 }
5827
5828 status = filename_convert(ctx, conn,
5829 req->flags2 & FLAGS2_DFS_PATHNAMES,
5830 directory,
5831 0,
5832 NULL,
5833 &smb_dname);
5834 if (!NT_STATUS_IS_OK(status)) {
5835 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5836 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5837 ERRSRV, ERRbadpath);
5838 goto out;
5839 }
5840 reply_nterror(req, status);
5841 goto out;
5842 }
5843
5844 status = create_directory(conn, req, smb_dname);
5845
5846 DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
5847
5848 if (!NT_STATUS_IS_OK(status)) {
5849
5850 if (!use_nt_status()
5851 && NT_STATUS_EQUAL(status,
5852 NT_STATUS_OBJECT_NAME_COLLISION)) {
5853 /*
5854 * Yes, in the DOS error code case we get a
5855 * ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
5856 * samba4 torture test.
5857 */
5858 status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
5859 }
5860
5861 reply_nterror(req, status);
5862 goto out;
5863 }
5864
5865 reply_outbuf(req, 0, 0);
5866
5867 DEBUG(3, ("mkdir %s\n", smb_dname->base_name));
5868 out:
5869 TALLOC_FREE(smb_dname);
5870 END_PROFILE(SMBmkdir);
5871 return;
5872 }
5873
5874 /****************************************************************************
5875 Reply to a rmdir.
5876 ****************************************************************************/
5877
5878 void reply_rmdir(struct smb_request *req)
5879 {
5880 connection_struct *conn = req->conn;
5881 struct smb_filename *smb_dname = NULL;
5882 char *directory = NULL;
5883 NTSTATUS status;
5884 TALLOC_CTX *ctx = talloc_tos();
5885 files_struct *fsp = NULL;
5886 int info = 0;
5887 struct smbd_server_connection *sconn = req->sconn;
5888
5889 START_PROFILE(SMBrmdir);
5890
5891 srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5892 STR_TERMINATE, &status);
5893 if (!NT_STATUS_IS_OK(status)) {
5894 reply_nterror(req, status);
5895 goto out;
5896 }
5897
5898 status = filename_convert(ctx, conn,
5899 req->flags2 & FLAGS2_DFS_PATHNAMES,
5900 directory,
5901 0,
5902 NULL,
5903 &smb_dname);
5904 if (!NT_STATUS_IS_OK(status)) {
5905 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5906 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5907 ERRSRV, ERRbadpath);
5908 goto out;
5909 }
5910 reply_nterror(req, status);
5911 goto out;
5912 }
5913
5914 if (is_ntfs_stream_smb_fname(smb_dname)) {
5915 reply_nterror(req, NT_STATUS_NOT_A_DIRECTORY);
5916 goto out;
5917 }
5918
5919 status = SMB_VFS_CREATE_FILE(
5920 conn, /* conn */
5921 req, /* req */
5922 0, /* root_dir_fid */
5923 smb_dname, /* fname */
5924 DELETE_ACCESS, /* access_mask */
5925 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
5926 FILE_SHARE_DELETE),
5927 FILE_OPEN, /* create_disposition*/
5928 FILE_DIRECTORY_FILE, /* create_options */
5929 FILE_ATTRIBUTE_DIRECTORY, /* file_attributes */
5930 0, /* oplock_request */
5931 0, /* allocation_size */
5932 0, /* private_flags */
5933 NULL, /* sd */
5934 NULL, /* ea_list */
5935 &fsp, /* result */
5936 &info); /* pinfo */
5937
5938 if (!NT_STATUS_IS_OK(status)) {
5939 if (open_was_deferred(req->sconn, req->mid)) {
5940 /* We have re-scheduled this call. */
5941 goto out;
5942 }
5943 reply_nterror(req, status);
5944 goto out;
5945 }
5946
5947 status = can_set_delete_on_close(fsp, FILE_ATTRIBUTE_DIRECTORY);
5948 if (!NT_STATUS_IS_OK(status)) {
5949 close_file(req, fsp, ERROR_CLOSE);
5950 reply_nterror(req, status);
5951 goto out;
5952 }
5953
5954 if (!set_delete_on_close(fsp, true,
5955 conn->session_info->security_token,
5956 conn->session_info->unix_token)) {
5957 close_file(req, fsp, ERROR_CLOSE);
5958 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5959 goto out;
5960 }
5961
5962 status = close_file(req, fsp, NORMAL_CLOSE);
5963 if (!NT_STATUS_IS_OK(status)) {
5964 reply_nterror(req, status);
5965 } else {
5966 reply_outbuf(req, 0, 0);
5967 }
5968
5969 dptr_closepath(sconn, smb_dname->base_name, req->smbpid);
5970
5971 DEBUG(3, ("rmdir %s\n", smb_fname_str_dbg(smb_dname)));
5972 out:
5973 TALLOC_FREE(smb_dname);
5974 END_PROFILE(SMBrmdir);
5975 return;
5976 }
5977
5978 /*******************************************************************
5979 Resolve wildcards in a filename rename.
5980 ********************************************************************/
5981
5982 static bool resolve_wildcards(TALLOC_CTX *ctx,
5983 const char *name1,
5984 const char *name2,
5985 char **pp_newname)
5986 {
5987 char *name2_copy = NULL;
5988 char *root1 = NULL;
5989 char *root2 = NULL;
5990 char *ext1 = NULL;
5991 char *ext2 = NULL;
5992 char *p,*p2, *pname1, *pname2;
5993
5994 name2_copy = talloc_strdup(ctx, name2);
5995 if (!name2_copy) {
5996 return False;
5997 }
5998
5999 pname1 = strrchr_m(name1,'/');
6000 pname2 = strrchr_m(name2_copy,'/');
6001
6002 if (!pname1 || !pname2) {
6003 return False;
6004 }
6005
6006 /* Truncate the copy of name2 at the last '/' */
6007 *pname2 = '\0';
6008
6009 /* Now go past the '/' */
6010 pname1++;
6011 pname2++;
6012
6013 root1 = talloc_strdup(ctx, pname1);
6014 root2 = talloc_strdup(ctx, pname2);
6015
6016 if (!root1 || !root2) {
6017 return False;
6018 }
6019
6020 p = strrchr_m(root1,'.');
6021 if (p) {
6022 *p = 0;
6023 ext1 = talloc_strdup(ctx, p+1);
6024 } else {
6025 ext1 = talloc_strdup(ctx, "");
6026 }
6027 p = strrchr_m(root2,'.');
6028 if (p) {
6029 *p = 0;
6030 ext2 = talloc_strdup(ctx, p+1);
6031 } else {
6032 ext2 = talloc_strdup(ctx, "");
6033 }
6034
6035 if (!ext1 || !ext2) {
6036 return False;
6037 }
6038
6039 p = root1;
6040 p2 = root2;
6041 while (*p2) {
6042 if (*p2 == '?') {
6043 /* Hmmm. Should this be mb-aware ? */
6044 *p2 = *p;
6045 p2++;
6046 } else if (*p2 == '*') {
6047 *p2 = '\0';
6048 root2 = talloc_asprintf(ctx, "%s%s",
6049 root2,
6050 p);
6051 if (!root2) {
6052 return False;
6053 }
6054 break;
6055 } else {
6056 p2++;
6057 }
6058 if (*p) {
6059 p++;
6060 }
6061 }
6062
6063 p = ext1;
6064 p2 = ext2;
6065 while (*p2) {
6066 if (*p2 == '?') {
6067 /* Hmmm. Should this be mb-aware ? */
6068 *p2 = *p;
6069 p2++;
6070 } else if (*p2 == '*') {
6071 *p2 = '\0';
6072 ext2 = talloc_asprintf(ctx, "%s%s",
6073 ext2,
6074 p);
6075 if (!ext2) {
6076 return False;
6077 }
6078 break;
6079 } else {
6080 p2++;
6081 }
6082 if (*p) {
6083 p++;
6084 }
6085 }
6086
6087 if (*ext2) {
6088 *pp_newname = talloc_asprintf(ctx, "%s/%s.%s",
6089 name2_copy,
6090 root2,
6091 ext2);
6092 } else {
6093 *pp_newname = talloc_asprintf(ctx, "%s/%s",
6094 name2_copy,
6095 root2);
6096 }
6097
6098 if (!*pp_newname) {
6099 return False;
6100 }
6101
6102 return True;
6103 }
6104
6105 /****************************************************************************
6106 Ensure open files have their names updated. Updated to notify other smbd's
6107 asynchronously.
6108 ****************************************************************************/
6109
6110 static void rename_open_files(connection_struct *conn,
6111 struct share_mode_lock *lck,
6112 uint32_t orig_name_hash,
6113 const struct smb_filename *smb_fname_dst)
6114 {
6115 files_struct *fsp;
6116 bool did_rename = False;
6117 NTSTATUS status;
6118 uint32_t new_name_hash = 0;
6119
6120 for(fsp = file_find_di_first(conn->sconn, lck->data->id); fsp;
6121 fsp = file_find_di_next(fsp)) {
6122 /* fsp_name is a relative path under the fsp. To change this for other
6123 sharepaths we need to manipulate relative paths. */
6124 /* TODO - create the absolute path and manipulate the newname
6125 relative to the sharepath. */
6126 if (!strequal(fsp->conn->connectpath, conn->connectpath)) {
6127 continue;
6128 }
6129 if (fsp->name_hash != orig_name_hash) {
6130 continue;
6131 }
6132 DEBUG(10, ("rename_open_files: renaming file %s "
6133 "(file_id %s) from %s -> %s\n", fsp_fnum_dbg(fsp),
6134 file_id_string_tos(&fsp->file_id), fsp_str_dbg(fsp),
6135 smb_fname_str_dbg(smb_fname_dst)));
6136
6137 status = fsp_set_smb_fname(fsp, smb_fname_dst);
6138 if (NT_STATUS_IS_OK(status)) {
6139 did_rename = True;
6140 new_name_hash = fsp->name_hash;
6141 }
6142 }
6143
6144 if (!did_rename) {
6145 DEBUG(10, ("rename_open_files: no open files on file_id %s "
6146 "for %s\n", file_id_string_tos(&lck->data->id),
6147 smb_fname_str_dbg(smb_fname_dst)));
6148 }
6149
6150 /* Send messages to all smbd's (not ourself) that the name has changed. */
6151 rename_share_filename(conn->sconn->msg_ctx, lck, conn->connectpath,
6152 orig_name_hash, new_name_hash,
6153 smb_fname_dst);
6154
6155 }
6156
6157 /****************************************************************************
6158 We need to check if the source path is a parent directory of the destination
6159 (ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
6160 refuse the rename with a sharing violation. Under UNIX the above call can
6161 *succeed* if /foo/bar/baz is a symlink to another area in the share. We
6162 probably need to check that the client is a Windows one before disallowing
6163 this as a UNIX client (one with UNIX extensions) can know the source is a
6164 symlink and make this decision intelligently. Found by an excellent bug
6165 report from <AndyLiebman@aol.com>.
6166 ****************************************************************************/
6167
6168 static bool rename_path_prefix_equal(const struct smb_filename *smb_fname_src,
6169 const struct smb_filename *smb_fname_dst)
6170 {
6171 const char *psrc = smb_fname_src->base_name;
6172 const char *pdst = smb_fname_dst->base_name;
6173 size_t slen;
6174
6175 if (psrc[0] == '.' && psrc[1] == '/') {
6176 psrc += 2;
6177 }
6178 if (pdst[0] == '.' && pdst[1] == '/') {
6179 pdst += 2;
6180 }
6181 if ((slen = strlen(psrc)) > strlen(pdst)) {
6182 return False;
6183 }
6184 return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
6185 }
6186
6187 /*
6188 * Do the notify calls from a rename
6189 */
6190
6191 static void notify_rename(connection_struct *conn, bool is_dir,
6192 const struct smb_filename *smb_fname_src,
6193 const struct smb_filename *smb_fname_dst)
6194 {
6195 char *parent_dir_src = NULL;
6196 char *parent_dir_dst = NULL;
6197 uint32 mask;
6198
6199 mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
6200 : FILE_NOTIFY_CHANGE_FILE_NAME;
6201
6202 if (!parent_dirname(talloc_tos(), smb_fname_src->base_name,
6203 &parent_dir_src, NULL) ||
6204 !parent_dirname(talloc_tos(), smb_fname_dst->base_name,
6205 &parent_dir_dst, NULL)) {
6206 goto out;
6207 }
6208
6209 if (strcmp(parent_dir_src, parent_dir_dst) == 0) {
6210 notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask,
6211 smb_fname_src->base_name);
6212 notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask,
6213 smb_fname_dst->base_name);
6214 }
6215 else {
6216 notify_fname(conn, NOTIFY_ACTION_REMOVED, mask,
6217 smb_fname_src->base_name);
6218 notify_fname(conn, NOTIFY_ACTION_ADDED, mask,
6219 smb_fname_dst->base_name);
6220 }
6221
6222 /* this is a strange one. w2k3 gives an additional event for
6223 CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
6224 files, but not directories */
6225 if (!is_dir) {
6226 notify_fname(conn, NOTIFY_ACTION_MODIFIED,
6227 FILE_NOTIFY_CHANGE_ATTRIBUTES
6228 |FILE_NOTIFY_CHANGE_CREATION,
6229 smb_fname_dst->base_name);
6230 }
6231 out:
6232 TALLOC_FREE(parent_dir_src);
6233 TALLOC_FREE(parent_dir_dst);
6234 }
6235
6236 /****************************************************************************
6237 Returns an error if the parent directory for a filename is open in an
6238 incompatible way.
6239 ****************************************************************************/
6240
6241 static NTSTATUS parent_dirname_compatible_open(connection_struct *conn,
6242 const struct smb_filename *smb_fname_dst_in)
6243 {
6244 char *parent_dir = NULL;
6245 struct smb_filename smb_fname_parent;
6246 struct file_id id;
6247 files_struct *fsp = NULL;
6248 int ret;
6249
6250 if (!parent_dirname(talloc_tos(), smb_fname_dst_in->base_name,
6251 &parent_dir, NULL)) {
6252 return NT_STATUS_NO_MEMORY;
6253 }
6254 ZERO_STRUCT(smb_fname_parent);
6255 smb_fname_parent.base_name = parent_dir;
6256
6257 ret = SMB_VFS_LSTAT(conn, &smb_fname_parent);
6258 if (ret == -1) {
6259 return map_nt_error_from_unix(errno);
6260 }
6261
6262 /*
6263 * We're only checking on this smbd here, mostly good
6264 * enough.. and will pass tests.
6265 */
6266
6267 id = vfs_file_id_from_sbuf(conn, &smb_fname_parent.st);
6268 for (fsp = file_find_di_first(conn->sconn, id); fsp;
6269 fsp = file_find_di_next(fsp)) {
6270 if (fsp->access_mask & DELETE_ACCESS) {
6271 return NT_STATUS_SHARING_VIOLATION;
6272 }
6273 }
6274 return NT_STATUS_OK;
6275 }
6276
6277 /****************************************************************************
6278 Rename an open file - given an fsp.
6279 ****************************************************************************/
6280
6281 NTSTATUS rename_internals_fsp(connection_struct *conn,
6282 files_struct *fsp,
6283 const struct smb_filename *smb_fname_dst_in,
6284 uint32 attrs,
6285 bool replace_if_exists)
6286 {
6287 TALLOC_CTX *ctx = talloc_tos();
6288 struct smb_filename *smb_fname_dst = NULL;
6289 NTSTATUS status = NT_STATUS_OK;
6290 struct share_mode_lock *lck = NULL;
6291 bool dst_exists, old_is_stream, new_is_stream;
6292
6293 status = check_name(conn, smb_fname_dst_in->base_name);
6294 if (!NT_STATUS_IS_OK(status)) {
6295 return status;
6296 }
6297
6298 status = parent_dirname_compatible_open(conn, smb_fname_dst_in);
6299 if (!NT_STATUS_IS_OK(status)) {
6300 return status;
6301 }
6302
6303 /* Make a copy of the dst smb_fname structs */
6304
6305 smb_fname_dst = cp_smb_filename(ctx, smb_fname_dst_in);
6306 if (smb_fname_dst == NULL) {
6307 status = NT_STATUS_NO_MEMORY;
6308 goto out;
6309 }
6310
6311 /*
6312 * Check for special case with case preserving and not
6313 * case sensitive. If the old last component differs from the original
6314 * last component only by case, then we should allow
6315 * the rename (user is trying to change the case of the
6316 * filename).
6317 */
6318 if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
6319 strequal(fsp->fsp_name->base_name, smb_fname_dst->base_name) &&
6320 strequal(fsp->fsp_name->stream_name, smb_fname_dst->stream_name)) {
6321 char *last_slash;
6322 char *fname_dst_lcomp_base_mod = NULL;
6323 struct smb_filename *smb_fname_orig_lcomp = NULL;
6324
6325 /*
6326 * Get the last component of the destination name.
6327 */
6328 last_slash = strrchr_m(smb_fname_dst->base_name, '/');
6329 if (last_slash) {
6330 fname_dst_lcomp_base_mod = talloc_strdup(ctx, last_slash + 1);
6331 } else {
6332 fname_dst_lcomp_base_mod = talloc_strdup(ctx, smb_fname_dst->base_name);
6333 }
6334 if (!fname_dst_lcomp_base_mod) {
6335 status = NT_STATUS_NO_MEMORY;
6336 goto out;
6337 }
6338
6339 /*
6340 * Create an smb_filename struct using the original last
6341 * component of the destination.
6342 */
6343 smb_fname_orig_lcomp = synthetic_smb_fname_split(
6344 ctx, smb_fname_dst->original_lcomp, NULL);
6345 if (smb_fname_orig_lcomp == NULL) {
6346 status = NT_STATUS_NO_MEMORY;
6347 TALLOC_FREE(fname_dst_lcomp_base_mod);
6348 goto out;
6349 }
6350
6351 /* If the base names only differ by case, use original. */
6352 if(!strcsequal(fname_dst_lcomp_base_mod,
6353 smb_fname_orig_lcomp->base_name)) {
6354 char *tmp;
6355 /*
6356 * Replace the modified last component with the
6357 * original.
6358 */
6359 if (last_slash) {
6360 *last_slash = '\0'; /* Truncate at the '/' */
6361 tmp = talloc_asprintf(smb_fname_dst,
6362 "%s/%s",
6363 smb_fname_dst->base_name,
6364 smb_fname_orig_lcomp->base_name);
6365 } else {
6366 tmp = talloc_asprintf(smb_fname_dst,
6367 "%s",
6368 smb_fname_orig_lcomp->base_name);
6369 }
6370 if (tmp == NULL) {
6371 status = NT_STATUS_NO_MEMORY;
6372 TALLOC_FREE(fname_dst_lcomp_base_mod);
6373 TALLOC_FREE(smb_fname_orig_lcomp);
6374 goto out;
6375 }
6376 TALLOC_FREE(smb_fname_dst->base_name);
6377 smb_fname_dst->base_name = tmp;
6378 }
6379
6380 /* If the stream_names only differ by case, use original. */
6381 if(!strcsequal(smb_fname_dst->stream_name,
6382 smb_fname_orig_lcomp->stream_name)) {
6383 char *tmp = NULL;
6384 /* Use the original stream. */
6385 tmp = talloc_strdup(smb_fname_dst,
6386 smb_fname_orig_lcomp->stream_name);
6387 if (tmp == NULL) {
6388 status = NT_STATUS_NO_MEMORY;
6389 TALLOC_FREE(fname_dst_lcomp_base_mod);
6390 TALLOC_FREE(smb_fname_orig_lcomp);
6391 goto out;
6392 }
6393 TALLOC_FREE(smb_fname_dst->stream_name);
6394 smb_fname_dst->stream_name = tmp;
6395 }
6396 TALLOC_FREE(fname_dst_lcomp_base_mod);
6397 TALLOC_FREE(smb_fname_orig_lcomp);
6398 }
6399
6400 /*
6401 * If the src and dest names are identical - including case,
6402 * don't do the rename, just return success.
6403 */
6404
6405 if (strcsequal(fsp->fsp_name->base_name, smb_fname_dst->base_name) &&
6406 strcsequal(fsp->fsp_name->stream_name,
6407 smb_fname_dst->stream_name)) {
6408 DEBUG(3, ("rename_internals_fsp: identical names in rename %s "
6409 "- returning success\n",
6410 smb_fname_str_dbg(smb_fname_dst)));
6411 status = NT_STATUS_OK;
6412 goto out;
6413 }
6414
6415 old_is_stream = is_ntfs_stream_smb_fname(fsp->fsp_name);
6416 new_is_stream = is_ntfs_stream_smb_fname(smb_fname_dst);
6417
6418 /* Return the correct error code if both names aren't streams. */
6419 if (!old_is_stream && new_is_stream) {
6420 status = NT_STATUS_OBJECT_NAME_INVALID;
6421 goto out;
6422 }
6423
6424 if (old_is_stream && !new_is_stream) {
6425 status = NT_STATUS_INVALID_PARAMETER;
6426 goto out;
6427 }
6428
6429 dst_exists = SMB_VFS_STAT(conn, smb_fname_dst) == 0;
6430
6431 if(!replace_if_exists && dst_exists) {
6432 DEBUG(3, ("rename_internals_fsp: dest exists doing rename "
6433 "%s -> %s\n", smb_fname_str_dbg(fsp->fsp_name),
6434 smb_fname_str_dbg(smb_fname_dst)));
6435 status = NT_STATUS_OBJECT_NAME_COLLISION;
6436 goto out;
6437 }
6438
6439 if (dst_exists) {
6440 struct file_id fileid = vfs_file_id_from_sbuf(conn,
6441 &smb_fname_dst->st);
6442 files_struct *dst_fsp = file_find_di_first(conn->sconn,
6443 fileid);
6444 /* The file can be open when renaming a stream */
6445 if (dst_fsp && !new_is_stream) {
6446 DEBUG(3, ("rename_internals_fsp: Target file open\n"));
6447 status = NT_STATUS_ACCESS_DENIED;
6448 goto out;
6449 }
6450 }
6451
6452 /* Ensure we have a valid stat struct for the source. */
6453 status = vfs_stat_fsp(fsp);
6454 if (!NT_STATUS_IS_OK(status)) {
6455 goto out;
6456 }
6457
6458 status = can_rename(conn, fsp, attrs);
6459
6460 if (!NT_STATUS_IS_OK(status)) {
6461 DEBUG(3, ("rename_internals_fsp: Error %s rename %s -> %s\n",
6462 nt_errstr(status), smb_fname_str_dbg(fsp->fsp_name),
6463 smb_fname_str_dbg(smb_fname_dst)));
6464 if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
6465 status = NT_STATUS_ACCESS_DENIED;
6466 goto out;
6467 }
6468
6469 if (rename_path_prefix_equal(fsp->fsp_name, smb_fname_dst)) {
6470 status = NT_STATUS_ACCESS_DENIED;
6471 }
6472
6473 lck = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
6474
6475 /*
6476 * We have the file open ourselves, so not being able to get the
6477 * corresponding share mode lock is a fatal error.
6478 */
6479
6480 SMB_ASSERT(lck != NULL);
6481
6482 if(SMB_VFS_RENAME(conn, fsp->fsp_name, smb_fname_dst) == 0) {
6483 uint32 create_options = fsp->fh->private_options;
6484
6485 DEBUG(3, ("rename_internals_fsp: succeeded doing rename on "
6486 "%s -> %s\n", smb_fname_str_dbg(fsp->fsp_name),
6487 smb_fname_str_dbg(smb_fname_dst)));
6488
6489 if (!fsp->is_directory &&
6490 !lp_posix_pathnames() &&
6491 (lp_map_archive(SNUM(conn)) ||
6492 lp_store_dos_attributes(SNUM(conn)))) {
6493 /* We must set the archive bit on the newly
6494 renamed file. */
6495 if (SMB_VFS_STAT(conn, smb_fname_dst) == 0) {
6496 uint32_t old_dosmode = dos_mode(conn,
6497 smb_fname_dst);
6498 file_set_dosmode(conn,
6499 smb_fname_dst,
6500 old_dosmode | FILE_ATTRIBUTE_ARCHIVE,
6501 NULL,
6502 true);
6503 }
6504 }
6505
6506 notify_rename(conn, fsp->is_directory, fsp->fsp_name,
6507 smb_fname_dst);
6508
6509 rename_open_files(conn, lck, fsp->name_hash, smb_fname_dst);
6510
6511 /*
6512 * A rename acts as a new file create w.r.t. allowing an initial delete
6513 * on close, probably because in Windows there is a new handle to the
6514 * new file. If initial delete on close was requested but not
6515 * originally set, we need to set it here. This is probably not 100% correct,
6516 * but will work for the CIFSFS client which in non-posix mode
6517 * depends on these semantics. JRA.
6518 */
6519
6520 if (create_options & FILE_DELETE_ON_CLOSE) {
6521 status = can_set_delete_on_close(fsp, 0);
6522
6523 if (NT_STATUS_IS_OK(status)) {
6524 /* Note that here we set the *inital* delete on close flag,
6525 * not the regular one. The magic gets handled in close. */
6526 fsp->initial_delete_on_close = True;
6527 }
6528 }
6529 TALLOC_FREE(lck);
6530 status = NT_STATUS_OK;
6531 goto out;
6532 }
6533
6534 TALLOC_FREE(lck);
6535
6536 if (errno == ENOTDIR || errno == EISDIR) {
6537 status = NT_STATUS_OBJECT_NAME_COLLISION;
6538 } else {
6539 status = map_nt_error_from_unix(errno);
6540 }
6541
6542 DEBUG(3, ("rename_internals_fsp: Error %s rename %s -> %s\n",
6543 nt_errstr(status), smb_fname_str_dbg(fsp->fsp_name),
6544 smb_fname_str_dbg(smb_fname_dst)));
6545
6546 out:
6547 TALLOC_FREE(smb_fname_dst);
6548
6549 return status;
6550 }
6551
6552 /****************************************************************************
6553 The guts of the rename command, split out so it may be called by the NT SMB
6554 code.
6555 ****************************************************************************/
6556
6557 NTSTATUS rename_internals(TALLOC_CTX *ctx,
6558 connection_struct *conn,
6559 struct smb_request *req,
6560 struct smb_filename *smb_fname_src,
6561 struct smb_filename *smb_fname_dst,
6562 uint32 attrs,
6563 bool replace_if_exists,
6564 bool src_has_wild,
6565 bool dest_has_wild,
6566 uint32_t access_mask)
6567 {
6568 char *fname_src_dir = NULL;
6569 char *fname_src_mask = NULL;
6570 int count=0;
6571 NTSTATUS status = NT_STATUS_OK;
6572 struct smb_Dir *dir_hnd = NULL;
6573 const char *dname = NULL;
6574 char *talloced = NULL;
6575 long offset = 0;
6576 int create_options = 0;
6577 bool posix_pathnames = lp_posix_pathnames();
6578 int rc;
6579
6580 /*
6581 * Split the old name into directory and last component
6582 * strings. Note that unix_convert may have stripped off a
6583 * leading ./ from both name and newname if the rename is
6584 * at the root of the share. We need to make sure either both
6585 * name and newname contain a / character or neither of them do
6586 * as this is checked in resolve_wildcards().
6587 */
6588
6589 /* Split up the directory from the filename/mask. */
6590 status = split_fname_dir_mask(ctx, smb_fname_src->base_name,
6591 &fname_src_dir, &fname_src_mask);
6592 if (!NT_STATUS_IS_OK(status)) {
6593 status = NT_STATUS_NO_MEMORY;
6594 goto out;
6595 }
6596
6597 /*
6598 * We should only check the mangled cache
6599 * here if unix_convert failed. This means
6600 * that the path in 'mask' doesn't exist
6601 * on the file system and so we need to look
6602 * for a possible mangle. This patch from
6603 * Tine Smukavec <valentin.smukavec@hermes.si>.
6604 */
6605
6606 if (!VALID_STAT(smb_fname_src->st) &&
6607 mangle_is_mangled(fname_src_mask, conn->params)) {
6608 char *new_mask = NULL;
6609 mangle_lookup_name_from_8_3(ctx, fname_src_mask, &new_mask,
6610 conn->params);
6611 if (new_mask) {
6612 TALLOC_FREE(fname_src_mask);
6613 fname_src_mask = new_mask;
6614 }
6615 }
6616
6617 if (!src_has_wild) {
6618 files_struct *fsp;
6619
6620 /*
6621 * Only one file needs to be renamed. Append the mask back
6622 * onto the directory.
6623 */
6624 TALLOC_FREE(smb_fname_src->base_name);
6625 if (ISDOT(fname_src_dir)) {
6626 /* Ensure we use canonical names on open. */
6627 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6628 "%s",
6629 fname_src_mask);
6630 } else {
6631 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6632 "%s/%s",
6633 fname_src_dir,
6634 fname_src_mask);
6635 }
6636 if (!smb_fname_src->base_name) {
6637 status = NT_STATUS_NO_MEMORY;
6638 goto out;
6639 }
6640
6641 DEBUG(3, ("rename_internals: case_sensitive = %d, "
6642 "case_preserve = %d, short case preserve = %d, "
6643 "directory = %s, newname = %s, "
6644 "last_component_dest = %s\n",
6645 conn->case_sensitive, conn->case_preserve,
6646 conn->short_case_preserve,
6647 smb_fname_str_dbg(smb_fname_src),
6648 smb_fname_str_dbg(smb_fname_dst),
6649 smb_fname_dst->original_lcomp));
6650
6651 /* The dest name still may have wildcards. */
6652 if (dest_has_wild) {
6653 char *fname_dst_mod = NULL;
6654 if (!resolve_wildcards(smb_fname_dst,
6655 smb_fname_src->base_name,
6656 smb_fname_dst->base_name,
6657 &fname_dst_mod)) {
6658 DEBUG(6, ("rename_internals: resolve_wildcards "
6659 "%s %s failed\n",
6660 smb_fname_src->base_name,
6661 smb_fname_dst->base_name));
6662 status = NT_STATUS_NO_MEMORY;
6663 goto out;
6664 }
6665 TALLOC_FREE(smb_fname_dst->base_name);
6666 smb_fname_dst->base_name = fname_dst_mod;
6667 }
6668
6669 ZERO_STRUCT(smb_fname_src->st);
6670 if (posix_pathnames) {
6671 rc = SMB_VFS_LSTAT(conn, smb_fname_src);
6672 } else {
6673 rc = SMB_VFS_STAT(conn, smb_fname_src);
6674 }
6675 if (rc == -1) {
6676 status = map_nt_error_from_unix_common(errno);
6677 goto out;
6678 }
6679
6680 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
6681 create_options |= FILE_DIRECTORY_FILE;
6682 }
6683
6684 status = SMB_VFS_CREATE_FILE(
6685 conn, /* conn */
6686 req, /* req */
6687 0, /* root_dir_fid */
6688 smb_fname_src, /* fname */
6689 access_mask, /* access_mask */
6690 (FILE_SHARE_READ | /* share_access */
6691 FILE_SHARE_WRITE),
6692 FILE_OPEN, /* create_disposition*/
6693 create_options, /* create_options */
6694 posix_pathnames ? FILE_FLAG_POSIX_SEMANTICS|0777 : 0, /* file_attributes */
6695 0, /* oplock_request */
6696 0, /* allocation_size */
6697 0, /* private_flags */
6698 NULL, /* sd */
6699 NULL, /* ea_list */
6700 &fsp, /* result */
6701 NULL); /* pinfo */
6702
6703 if (!NT_STATUS_IS_OK(status)) {
6704 DEBUG(3, ("Could not open rename source %s: %s\n",
6705 smb_fname_str_dbg(smb_fname_src),
6706 nt_errstr(status)));
6707 goto out;
6708 }
6709
6710 status = rename_internals_fsp(conn, fsp, smb_fname_dst,
6711 attrs, replace_if_exists);
6712
6713 close_file(req, fsp, NORMAL_CLOSE);
6714
6715 DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
6716 nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
6717 smb_fname_str_dbg(smb_fname_dst)));
6718
6719 goto out;
6720 }
6721
6722 /*
6723 * Wildcards - process each file that matches.
6724 */
6725 if (strequal(fname_src_mask, "????????.???")) {
6726 TALLOC_FREE(fname_src_mask);
6727 fname_src_mask = talloc_strdup(ctx, "*");
6728 if (!fname_src_mask) {
6729 status = NT_STATUS_NO_MEMORY;
6730 goto out;
6731 }
6732 }
6733
6734 status = check_name(conn, fname_src_dir);
6735 if (!NT_STATUS_IS_OK(status)) {
6736 goto out;
6737 }
6738
6739 dir_hnd = OpenDir(talloc_tos(), conn, fname_src_dir, fname_src_mask,
6740 attrs);
6741 if (dir_hnd == NULL) {
6742 status = map_nt_error_from_unix(errno);
6743 goto out;
6744 }
6745
6746 status = NT_STATUS_NO_SUCH_FILE;
6747 /*
6748 * Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
6749 * - gentest fix. JRA
6750 */
6751
6752 while ((dname = ReadDirName(dir_hnd, &offset, &smb_fname_src->st,
6753 &talloced))) {
6754 files_struct *fsp = NULL;
6755 char *destname = NULL;
6756 bool sysdir_entry = False;
6757
6758 /* Quick check for "." and ".." */
6759 if (ISDOT(dname) || ISDOTDOT(dname)) {
6760 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
6761 sysdir_entry = True;
6762 } else {
6763 TALLOC_FREE(talloced);
6764 continue;
6765 }
6766 }
6767
6768 if (!is_visible_file(conn, fname_src_dir, dname,
6769 &smb_fname_src->st, false)) {
6770 TALLOC_FREE(talloced);
6771 continue;
6772 }
6773
6774 if(!mask_match(dname, fname_src_mask, conn->case_sensitive)) {
6775 TALLOC_FREE(talloced);
6776 continue;
6777 }
6778
6779 if (sysdir_entry) {
6780 status = NT_STATUS_OBJECT_NAME_INVALID;
6781 break;
6782 }
6783
6784 TALLOC_FREE(smb_fname_src->base_name);
6785 if (ISDOT(fname_src_dir)) {
6786 /* Ensure we use canonical names on open. */
6787 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6788 "%s",
6789 dname);
6790 } else {
6791 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6792 "%s/%s",
6793 fname_src_dir,
6794 dname);
6795 }
6796 if (!smb_fname_src->base_name) {
6797 status = NT_STATUS_NO_MEMORY;
6798 goto out;
6799 }
6800
6801 if (!resolve_wildcards(ctx, smb_fname_src->base_name,
6802 smb_fname_dst->base_name,
6803 &destname)) {
6804 DEBUG(6, ("resolve_wildcards %s %s failed\n",
6805 smb_fname_src->base_name, destname));
6806 TALLOC_FREE(talloced);
6807 continue;
6808 }
6809 if (!destname) {
6810 status = NT_STATUS_NO_MEMORY;
6811 goto out;
6812 }
6813
6814 TALLOC_FREE(smb_fname_dst->base_name);
6815 smb_fname_dst->base_name = destname;
6816
6817 ZERO_STRUCT(smb_fname_src->st);
6818 if (posix_pathnames) {
6819 SMB_VFS_LSTAT(conn, smb_fname_src);
6820 } else {
6821 SMB_VFS_STAT(conn, smb_fname_src);
6822 }
6823
6824 create_options = 0;
6825
6826 if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
6827 create_options |= FILE_DIRECTORY_FILE;
6828 }
6829
6830 status = SMB_VFS_CREATE_FILE(
6831 conn, /* conn */
6832 req, /* req */
6833 0, /* root_dir_fid */
6834 smb_fname_src, /* fname */
6835 access_mask, /* access_mask */
6836 (FILE_SHARE_READ | /* share_access */
6837 FILE_SHARE_WRITE),
6838 FILE_OPEN, /* create_disposition*/
6839 create_options, /* create_options */
6840 posix_pathnames ? FILE_FLAG_POSIX_SEMANTICS|0777 : 0, /* file_attributes */
6841 0, /* oplock_request */
6842 0, /* allocation_size */
6843 0, /* private_flags */
6844 NULL, /* sd */
6845 NULL, /* ea_list */
6846 &fsp, /* result */
6847 NULL); /* pinfo */
6848
6849 if (!NT_STATUS_IS_OK(status)) {
6850 DEBUG(3,("rename_internals: SMB_VFS_CREATE_FILE "
6851 "returned %s rename %s -> %s\n",
6852 nt_errstr(status),
6853 smb_fname_str_dbg(smb_fname_src),
6854 smb_fname_str_dbg(smb_fname_dst)));
6855 break;
6856 }
6857
6858 smb_fname_dst->original_lcomp = talloc_strdup(smb_fname_dst,
6859 dname);
6860 if (!smb_fname_dst->original_lcomp) {
6861 status = NT_STATUS_NO_MEMORY;
6862 goto out;
6863 }
6864
6865 status = rename_internals_fsp(conn, fsp, smb_fname_dst,
6866 attrs, replace_if_exists);
6867
6868 close_file(req, fsp, NORMAL_CLOSE);
6869
6870 if (!NT_STATUS_IS_OK(status)) {
6871 DEBUG(3, ("rename_internals_fsp returned %s for "
6872 "rename %s -> %s\n", nt_errstr(status),
6873 smb_fname_str_dbg(smb_fname_src),
6874 smb_fname_str_dbg(smb_fname_dst)));
6875 break;
6876 }
6877
6878 count++;
6879
6880 DEBUG(3,("rename_internals: doing rename on %s -> "
6881 "%s\n", smb_fname_str_dbg(smb_fname_src),
6882 smb_fname_str_dbg(smb_fname_src)));
6883 TALLOC_FREE(talloced);
6884 }
6885 TALLOC_FREE(dir_hnd);
6886
6887 if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
6888 status = map_nt_error_from_unix(errno);
6889 }
6890
6891 out:
6892 TALLOC_FREE(talloced);
6893 TALLOC_FREE(fname_src_dir);
6894 TALLOC_FREE(fname_src_mask);
6895 return status;
6896 }
6897
6898 /****************************************************************************
6899 Reply to a mv.
6900 ****************************************************************************/
6901
6902 void reply_mv(struct smb_request *req)
6903 {
6904 connection_struct *conn = req->conn;
6905 char *name = NULL;
6906 char *newname = NULL;
6907 const char *p;
6908 uint32 attrs;
6909 NTSTATUS status;
6910 bool src_has_wcard = False;
6911 bool dest_has_wcard = False;
6912 TALLOC_CTX *ctx = talloc_tos();
6913 struct smb_filename *smb_fname_src = NULL;
6914 struct smb_filename *smb_fname_dst = NULL;
6915 uint32_t src_ucf_flags = lp_posix_pathnames() ? UCF_UNIX_NAME_LOOKUP : UCF_COND_ALLOW_WCARD_LCOMP;
6916 uint32_t dst_ucf_flags = UCF_SAVE_LCOMP | (lp_posix_pathnames() ? 0 : UCF_COND_ALLOW_WCARD_LCOMP);
6917 bool stream_rename = false;
6918
6919 START_PROFILE(SMBmv);
6920
6921 if (req->wct < 1) {
6922 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6923 goto out;
6924 }
6925
6926 attrs = SVAL(req->vwv+0, 0);
6927
6928 p = (const char *)req->buf + 1;
6929 p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
6930 &status, &src_has_wcard);
6931 if (!NT_STATUS_IS_OK(status)) {
6932 reply_nterror(req, status);
6933 goto out;
6934 }
6935 p++;
6936 p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
6937 &status, &dest_has_wcard);
6938 if (!NT_STATUS_IS_OK(status)) {
6939 reply_nterror(req, status);
6940 goto out;
6941 }
6942
6943 if (!lp_posix_pathnames()) {
6944 /* The newname must begin with a ':' if the
6945 name contains a ':'. */
6946 if (strchr_m(name, ':')) {
6947 if (newname[0] != ':') {
6948 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6949 goto out;
6950 }
6951 stream_rename = true;
6952 }
6953 }
6954
6955 status = filename_convert(ctx,
6956 conn,
6957 req->flags2 & FLAGS2_DFS_PATHNAMES,
6958 name,
6959 src_ucf_flags,
6960 &src_has_wcard,
6961 &smb_fname_src);
6962
6963 if (!NT_STATUS_IS_OK(status)) {
6964 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6965 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6966 ERRSRV, ERRbadpath);
6967 goto out;
6968 }
6969 reply_nterror(req, status);
6970 goto out;
6971 }
6972
6973 status = filename_convert(ctx,
6974 conn,
6975 req->flags2 & FLAGS2_DFS_PATHNAMES,
6976 newname,
6977 dst_ucf_flags,
6978 &dest_has_wcard,
6979 &smb_fname_dst);
6980
6981 if (!NT_STATUS_IS_OK(status)) {
6982 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6983 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6984 ERRSRV, ERRbadpath);
6985 goto out;
6986 }
6987 reply_nterror(req, status);
6988 goto out;
6989 }
6990
6991 if (stream_rename) {
6992 /* smb_fname_dst->base_name must be the same as
6993 smb_fname_src->base_name. */
6994 TALLOC_FREE(smb_fname_dst->base_name);
6995 smb_fname_dst->base_name = talloc_strdup(smb_fname_dst,
6996 smb_fname_src->base_name);
6997 if (!smb_fname_dst->base_name) {
6998 reply_nterror(req, NT_STATUS_NO_MEMORY);
6999 goto out;
7000 }
7001 }
7002
7003 DEBUG(3,("reply_mv : %s -> %s\n", smb_fname_str_dbg(smb_fname_src),
7004 smb_fname_str_dbg(smb_fname_dst)));
7005
7006 status = rename_internals(ctx, conn, req, smb_fname_src, smb_fname_dst,
7007 attrs, False, src_has_wcard, dest_has_wcard,
7008 DELETE_ACCESS);
7009 if (!NT_STATUS_IS_OK(status)) {
7010 if (open_was_deferred(req->sconn, req->mid)) {
7011 /* We have re-scheduled this call. */
7012 goto out;
7013 }
7014 reply_nterror(req, status);
7015 goto out;
7016 }
7017
7018 reply_outbuf(req, 0, 0);
7019 out:
7020 TALLOC_FREE(smb_fname_src);
7021 TALLOC_FREE(smb_fname_dst);
7022 END_PROFILE(SMBmv);
7023 return;
7024 }
7025
7026 /*******************************************************************
7027 Copy a file as part of a reply_copy.
7028 ******************************************************************/
7029
7030 /*
7031 * TODO: check error codes on all callers
7032 */
7033
7034 NTSTATUS copy_file(TALLOC_CTX *ctx,
7035 connection_struct *conn,
7036 struct smb_filename *smb_fname_src,
7037 struct smb_filename *smb_fname_dst,
7038 int ofun,
7039 int count,
7040 bool target_is_directory)
7041 {
7042 struct smb_filename *smb_fname_dst_tmp = NULL;
7043 off_t ret=-1;
7044 files_struct *fsp1,*fsp2;
7045 uint32 dosattrs;
7046 uint32 new_create_disposition;
7047 NTSTATUS status;
7048
7049
7050 smb_fname_dst_tmp = cp_smb_filename(ctx, smb_fname_dst);
7051 if (smb_fname_dst_tmp == NULL) {
7052 return NT_STATUS_NO_MEMORY;
7053 }
7054
7055 /*
7056 * If the target is a directory, extract the last component from the
7057 * src filename and append it to the dst filename
7058 */
7059 if (target_is_directory) {
7060 const char *p;
7061
7062 /* dest/target can't be a stream if it's a directory. */
7063 SMB_ASSERT(smb_fname_dst->stream_name == NULL);
7064
7065 p = strrchr_m(smb_fname_src->base_name,'/');
7066 if (p) {
7067 p++;
7068 } else {
7069 p = smb_fname_src->base_name;
7070 }
7071 smb_fname_dst_tmp->base_name =
7072 talloc_asprintf_append(smb_fname_dst_tmp->base_name, "/%s",
7073 p);
7074 if (!smb_fname_dst_tmp->base_name) {
7075 status = NT_STATUS_NO_MEMORY;
7076 goto out;
7077 }
7078 }
7079
7080 status = vfs_file_exist(conn, smb_fname_src);
7081 if (!NT_STATUS_IS_OK(status)) {
7082 goto out;
7083 }
7084
7085 if (!target_is_directory && count) {
7086 new_create_disposition = FILE_OPEN;
7087 } else {
7088 if (!map_open_params_to_ntcreate(smb_fname_dst_tmp->base_name,
7089 0, ofun,
7090 NULL, NULL,
7091 &new_create_disposition,
7092 NULL,
7093 NULL)) {
7094 status = NT_STATUS_INVALID_PARAMETER;
7095 goto out;
7096 }
7097 }
7098
7099 /* Open the src file for reading. */
7100 status = SMB_VFS_CREATE_FILE(
7101 conn, /* conn */
7102 NULL, /* req */
7103 0, /* root_dir_fid */
7104 smb_fname_src, /* fname */
7105 FILE_GENERIC_READ, /* access_mask */
7106 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
7107 FILE_OPEN, /* create_disposition*/
7108 0, /* create_options */
7109 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
7110 INTERNAL_OPEN_ONLY, /* oplock_request */
7111 0, /* allocation_size */
7112 0, /* private_flags */
7113 NULL, /* sd */
7114 NULL, /* ea_list */
7115 &fsp1, /* result */
7116 NULL); /* psbuf */
7117
7118 if (!NT_STATUS_IS_OK(status)) {
7119 goto out;
7120 }
7121
7122 dosattrs = dos_mode(conn, smb_fname_src);
7123
7124 if (SMB_VFS_STAT(conn, smb_fname_dst_tmp) == -1) {
7125 ZERO_STRUCTP(&smb_fname_dst_tmp->st);
7126 }
7127
7128 /* Open the dst file for writing. */
7129 status = SMB_VFS_CREATE_FILE(
7130 conn, /* conn */
7131 NULL, /* req */
7132 0, /* root_dir_fid */
7133 smb_fname_dst, /* fname */
7134 FILE_GENERIC_WRITE, /* access_mask */
7135 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
7136 new_create_disposition, /* create_disposition*/
7137 0, /* create_options */
7138 dosattrs, /* file_attributes */
7139 INTERNAL_OPEN_ONLY, /* oplock_request */
7140 0, /* allocation_size */
7141 0, /* private_flags */
7142 NULL, /* sd */
7143 NULL, /* ea_list */
7144 &fsp2, /* result */
7145 NULL); /* psbuf */
7146
7147 if (!NT_STATUS_IS_OK(status)) {
7148 close_file(NULL, fsp1, ERROR_CLOSE);
7149 goto out;
7150 }
7151
7152 if (ofun & OPENX_FILE_EXISTS_OPEN) {
7153 ret = SMB_VFS_LSEEK(fsp2, 0, SEEK_END);
7154 if (ret == -1) {
7155 DEBUG(0, ("error - vfs lseek returned error %s\n",
7156 strerror(errno)));
7157 status = map_nt_error_from_unix(errno);
7158 close_file(NULL, fsp1, ERROR_CLOSE);
7159 close_file(NULL, fsp2, ERROR_CLOSE);
7160 goto out;
7161 }
7162 }
7163
7164 /* Do the actual copy. */
7165 if (smb_fname_src->st.st_ex_size) {
7166 ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
7167 } else {
7168 ret = 0;
7169 }
7170
7171 close_file(NULL, fsp1, NORMAL_CLOSE);
7172
7173 /* Ensure the modtime is set correctly on the destination file. */
7174 set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
7175
7176 /*
7177 * As we are opening fsp1 read-only we only expect
7178 * an error on close on fsp2 if we are out of space.
7179 * Thus we don't look at the error return from the
7180 * close of fsp1.
7181 */
7182 status = close_file(NULL, fsp2, NORMAL_CLOSE);
7183
7184 if (!NT_STATUS_IS_OK(status)) {
7185 goto out;
7186 }
7187
7188 if (ret != (off_t)smb_fname_src->st.st_ex_size) {
7189 status = NT_STATUS_DISK_FULL;
7190 goto out;
7191 }
7192
7193 status = NT_STATUS_OK;
7194
7195 out:
7196 TALLOC_FREE(smb_fname_dst_tmp);
7197 return status;
7198 }
7199
7200 /****************************************************************************
7201 Reply to a file copy.
7202 ****************************************************************************/
7203
7204 void reply_copy(struct smb_request *req)
7205 {
7206 connection_struct *conn = req->conn;
7207 struct smb_filename *smb_fname_src = NULL;
7208 struct smb_filename *smb_fname_dst = NULL;
7209 char *fname_src = NULL;
7210 char *fname_dst = NULL;
7211 char *fname_src_mask = NULL;
7212 char *fname_src_dir = NULL;
7213 const char *p;
7214 int count=0;
7215 int error = ERRnoaccess;
7216 int tid2;
7217 int ofun;
7218 int flags;
7219 bool target_is_directory=False;
7220 bool source_has_wild = False;
7221 bool dest_has_wild = False;
7222 NTSTATUS status;
7223 TALLOC_CTX *ctx = talloc_tos();
7224
7225 START_PROFILE(SMBcopy);
7226
7227 if (req->wct < 3) {
7228 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7229 goto out;
7230 }
7231
7232 tid2 = SVAL(req->vwv+0, 0);
7233 ofun = SVAL(req->vwv+1, 0);
7234 flags = SVAL(req->vwv+2, 0);
7235
7236 p = (const char *)req->buf;
7237 p += srvstr_get_path_req_wcard(ctx, req, &fname_src, p, STR_TERMINATE,
7238 &status, &source_has_wild);
7239 if (!NT_STATUS_IS_OK(status)) {
7240 reply_nterror(req, status);
7241 goto out;
7242 }
7243 p += srvstr_get_path_req_wcard(ctx, req, &fname_dst, p, STR_TERMINATE,
7244 &status, &dest_has_wild);
7245 if (!NT_STATUS_IS_OK(status)) {
7246 reply_nterror(req, status);
7247 goto out;
7248 }
7249
7250 DEBUG(3,("reply_copy : %s -> %s\n", fname_src, fname_dst));
7251
7252 if (tid2 != conn->cnum) {
7253 /* can't currently handle inter share copies XXXX */
7254 DEBUG(3,("Rejecting inter-share copy\n"));
7255 reply_nterror(req, NT_STATUS_BAD_DEVICE_TYPE);
7256 goto out;
7257 }
7258
7259 status = filename_convert(ctx, conn,
7260 req->flags2 & FLAGS2_DFS_PATHNAMES,
7261 fname_src,
7262 UCF_COND_ALLOW_WCARD_LCOMP,
7263 &source_has_wild,
7264 &smb_fname_src);
7265 if (!NT_STATUS_IS_OK(status)) {
7266 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
7267 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
7268 ERRSRV, ERRbadpath);
7269 goto out;
7270 }
7271 reply_nterror(req, status);
7272 goto out;
7273 }
7274
7275 status = filename_convert(ctx, conn,
7276 req->flags2 & FLAGS2_DFS_PATHNAMES,
7277 fname_dst,
7278 UCF_COND_ALLOW_WCARD_LCOMP,
7279 &dest_has_wild,
7280 &smb_fname_dst);
7281 if (!NT_STATUS_IS_OK(status)) {
7282 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
7283 reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
7284 ERRSRV, ERRbadpath);
7285 goto out;
7286 }
7287 reply_nterror(req, status);
7288 goto out;
7289 }
7290
7291 target_is_directory = VALID_STAT_OF_DIR(smb_fname_dst->st);
7292
7293 if ((flags&1) && target_is_directory) {
7294 reply_nterror(req, NT_STATUS_NO_SUCH_FILE);
7295 goto out;
7296 }
7297
7298 if ((flags&2) && !target_is_directory) {
7299 reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND);
7300 goto out;
7301 }
7302
7303 if ((flags&(1<<5)) && VALID_STAT_OF_DIR(smb_fname_src->st)) {
7304 /* wants a tree copy! XXXX */
7305 DEBUG(3,("Rejecting tree copy\n"));
7306 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7307 goto out;
7308 }
7309
7310 /* Split up the directory from the filename/mask. */
7311 status = split_fname_dir_mask(ctx, smb_fname_src->base_name,
7312 &fname_src_dir, &fname_src_mask);
7313 if (!NT_STATUS_IS_OK(status)) {
7314 reply_nterror(req, NT_STATUS_NO_MEMORY);
7315 goto out;
7316 }
7317
7318 /*
7319 * We should only check the mangled cache
7320 * here if unix_convert failed. This means
7321 * that the path in 'mask' doesn't exist
7322 * on the file system and so we need to look
7323 * for a possible mangle. This patch from
7324 * Tine Smukavec <valentin.smukavec@hermes.si>.
7325 */
7326 if (!VALID_STAT(smb_fname_src->st) &&
7327 mangle_is_mangled(fname_src_mask, conn->params)) {
7328 char *new_mask = NULL;
7329 mangle_lookup_name_from_8_3(ctx, fname_src_mask,
7330 &new_mask, conn->params);
7331
7332 /* Use demangled name if one was successfully found. */
7333 if (new_mask) {
7334 TALLOC_FREE(fname_src_mask);
7335 fname_src_mask = new_mask;
7336 }
7337 }
7338
7339 if (!source_has_wild) {
7340
7341 /*
7342 * Only one file needs to be copied. Append the mask back onto
7343 * the directory.
7344 */
7345 TALLOC_FREE(smb_fname_src->base_name);
7346 if (ISDOT(fname_src_dir)) {
7347 /* Ensure we use canonical names on open. */
7348 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
7349 "%s",
7350 fname_src_mask);
7351 } else {
7352 smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
7353 "%s/%s",
7354 fname_src_dir,
7355 fname_src_mask);
7356 }
7357 if (!smb_fname_src->base_name) {
7358 reply_nterror(req, NT_STATUS_NO_MEMORY);
7359 goto out;
7360 }
7361
7362 if (dest_has_wild) {
7363 char *fname_dst_mod = NULL;
7364 if (!resolve_wildcards(smb_fname_dst,
7365 smb_fname_src->base_name,
7366 smb_fname_dst->base_name,
7367 &fname_dst_mod)) {
7368 reply_nterror(req, NT_STATUS_NO_MEMORY);
7369 goto out;
7370 }
7371 TALLOC_FREE(smb_fname_dst->base_name);
7372 smb_fname_dst->base_name = fname_dst_mod;
7373 }
7374
7375 status = check_name(conn, smb_fname_src->base_name);
7376 if (!NT_STATUS_IS_OK(status)) {
7377 reply_nterror(req, status);
7378 goto out;
7379 }
7380
7381 status = check_name(conn, smb_fname_dst->base_name);
7382 if (!NT_STATUS_IS_OK(status)) {
7383 reply_nterror(req, status);
7384 goto out;
7385 }
7386
7387 status = copy_file(ctx, conn, smb_fname_src, smb_fname_dst,
7388 ofun, count, target_is_directory);
7389
7390 if(!NT_STATUS_IS_OK(status)) {
7391 reply_nterror(req, status);
7392 goto out;
7393 } else {
7394 count++;
7395 }
7396 } else {
7397 struct smb_Dir *dir_hnd = NULL;
7398 const char *dname = NULL;
7399 char *talloced = NULL;
7400 long offset = 0;
7401
7402 /*
7403 * There is a wildcard that requires us to actually read the
7404 * src dir and copy each file matching the mask to the dst.
7405 * Right now streams won't be copied, but this could
7406 * presumably be added with a nested loop for reach dir entry.
7407 */
7408 SMB_ASSERT(!smb_fname_src->stream_name);
7409 SMB_ASSERT(!smb_fname_dst->stream_name);
7410
7411 smb_fname_src->stream_name = NULL;
7412 smb_fname_dst->stream_name = NULL;
7413
7414 if (strequal(fname_src_mask,"????????.???")) {
7415 TALLOC_FREE(fname_src_mask);
7416 fname_src_mask = talloc_strdup(ctx, "*");
7417 if (!fname_src_mask) {
7418 reply_nterror(req, NT_STATUS_NO_MEMORY);
7419 goto out;
7420 }
7421 }
7422
7423 status = check_name(conn, fname_src_dir);
7424 if (!NT_STATUS_IS_OK(status)) {
7425 reply_nterror(req, status);
7426 goto out;
7427 }
7428
7429 dir_hnd = OpenDir(ctx, conn, fname_src_dir, fname_src_mask, 0);
7430 if (dir_hnd == NULL) {
7431 status = map_nt_error_from_unix(errno);
7432 reply_nterror(req, status);
7433 goto out;
7434 }
7435
7436 error = ERRbadfile;
7437
7438 /* Iterate over the src dir copying each entry to the dst. */
7439 while ((dname = ReadDirName(dir_hnd, &offset,
7440 &smb_fname_src->st, &talloced))) {
7441 char *destname = NULL;
7442
7443 if (ISDOT(dname) || ISDOTDOT(dname)) {
7444 TALLOC_FREE(talloced);
7445 continue;
7446 }
7447
7448 if (!is_visible_file(conn, fname_src_dir, dname,
7449 &smb_fname_src->st, false)) {
7450 TALLOC_FREE(talloced);
7451 continue;
7452 }
7453
7454 if(!mask_match(dname, fname_src_mask,
7455 conn->case_sensitive)) {
7456 TALLOC_FREE(talloced);
7457 continue;
7458 }
7459
7460 error = ERRnoaccess;
7461
7462 /* Get the src smb_fname struct setup. */
7463 TALLOC_FREE(smb_fname_src->base_name);
7464 if (ISDOT(fname_src_dir)) {
7465 /* Ensure we use canonical names on open. */
7466 smb_fname_src->base_name =
7467 talloc_asprintf(smb_fname_src, "%s",
7468 dname);
7469 } else {
7470 smb_fname_src->base_name =
7471 talloc_asprintf(smb_fname_src, "%s/%s",
7472 fname_src_dir, dname);
7473 }
7474
7475 if (!smb_fname_src->base_name) {
7476 TALLOC_FREE(dir_hnd);
7477 TALLOC_FREE(talloced);
7478 reply_nterror(req, NT_STATUS_NO_MEMORY);
7479 goto out;
7480 }
7481
7482 if (!resolve_wildcards(ctx, smb_fname_src->base_name,
7483 smb_fname_dst->base_name,
7484 &destname)) {
7485 TALLOC_FREE(talloced);
7486 continue;
7487 }
7488 if (!destname) {
7489 TALLOC_FREE(dir_hnd);
7490 TALLOC_FREE(talloced);
7491 reply_nterror(req, NT_STATUS_NO_MEMORY);
7492 goto out;
7493 }
7494
7495 TALLOC_FREE(smb_fname_dst->base_name);
7496 smb_fname_dst->base_name = destname;
7497
7498 status = check_name(conn, smb_fname_src->base_name);
7499 if (!NT_STATUS_IS_OK(status)) {
7500 TALLOC_FREE(dir_hnd);
7501 TALLOC_FREE(talloced);
7502 reply_nterror(req, status);
7503 goto out;
7504 }
7505
7506 status = check_name(conn, smb_fname_dst->base_name);
7507 if (!NT_STATUS_IS_OK(status)) {
7508 TALLOC_FREE(dir_hnd);
7509 TALLOC_FREE(talloced);
7510 reply_nterror(req, status);
7511 goto out;
7512 }
7513
7514 DEBUG(3,("reply_copy : doing copy on %s -> %s\n",
7515 smb_fname_src->base_name,
7516 smb_fname_dst->base_name));
7517
7518 status = copy_file(ctx, conn, smb_fname_src,
7519 smb_fname_dst, ofun, count,
7520 target_is_directory);
7521 if (NT_STATUS_IS_OK(status)) {
7522 count++;
7523 }
7524
7525 TALLOC_FREE(talloced);
7526 }
7527 TALLOC_FREE(dir_hnd);
7528 }
7529
7530 if (count == 0) {
7531 reply_nterror(req, dos_to_ntstatus(ERRDOS, error));
7532 goto out;
7533 }
7534
7535 reply_outbuf(req, 1, 0);
7536 SSVAL(req->outbuf,smb_vwv0,count);
7537 out:
7538 TALLOC_FREE(smb_fname_src);
7539 TALLOC_FREE(smb_fname_dst);
7540 TALLOC_FREE(fname_src);
7541 TALLOC_FREE(fname_dst);
7542 TALLOC_FREE(fname_src_mask);
7543 TALLOC_FREE(fname_src_dir);
7544
7545 END_PROFILE(SMBcopy);
7546 return;
7547 }
7548
7549 #undef DBGC_CLASS
7550 #define DBGC_CLASS DBGC_LOCKING
7551
7552 /****************************************************************************
7553 Get a lock pid, dealing with large count requests.
7554 ****************************************************************************/
7555
7556 uint64_t get_lock_pid(const uint8_t *data, int data_offset,
7557 bool large_file_format)
7558 {
7559 if(!large_file_format)
7560 return (uint64_t)SVAL(data,SMB_LPID_OFFSET(data_offset));
7561 else
7562 return (uint64_t)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
7563 }
7564
7565 /****************************************************************************
7566 Get a lock count, dealing with large count requests.
7567 ****************************************************************************/
7568
7569 uint64_t get_lock_count(const uint8_t *data, int data_offset,
7570 bool large_file_format)
7571 {
7572 uint64_t count = 0;
7573
7574 if(!large_file_format) {
7575 count = (uint64_t)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
7576 } else {
7577
7578 #if defined(HAVE_LONGLONG)
7579 count = (((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) |
7580 ((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
7581 #else /* HAVE_LONGLONG */
7582
7583 /*
7584 * NT4.x seems to be broken in that it sends large file (64 bit)
7585 * lockingX calls even if the CAP_LARGE_FILES was *not*
7586 * negotiated. For boxes without large unsigned ints truncate the
7587 * lock count by dropping the top 32 bits.
7588 */
7589
7590 if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
7591 DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
7592 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
7593 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
7594 SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
7595 }
7596
7597 count = (uint64_t)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
7598 #endif /* HAVE_LONGLONG */
7599 }
7600
7601 return count;
7602 }
7603
7604 #if !defined(HAVE_LONGLONG)
7605 /****************************************************************************
7606 Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
7607 ****************************************************************************/
7608
7609 static uint32 map_lock_offset(uint32 high, uint32 low)
7610 {
7611 unsigned int i;
7612 uint32 mask = 0;
7613 uint32 highcopy = high;
7614
7615 /*
7616 * Try and find out how many significant bits there are in high.
7617 */
7618
7619 for(i = 0; highcopy; i++)
7620 highcopy >>= 1;
7621
7622 /*
7623 * We use 31 bits not 32 here as POSIX
7624 * lock offsets may not be negative.
7625 */
7626
7627 mask = (~0) << (31 - i);
7628
7629 if(low & mask)
7630 return 0; /* Fail. */
7631
7632 high <<= (31 - i);
7633
7634 return (high|low);
7635 }
7636 #endif /* !defined(HAVE_LONGLONG) */
7637
7638 /****************************************************************************
7639 Get a lock offset, dealing with large offset requests.
7640 ****************************************************************************/
7641
7642 uint64_t get_lock_offset(const uint8_t *data, int data_offset,
7643 bool large_file_format, bool *err)
7644 {
7645 uint64_t offset = 0;
7646
7647 *err = False;
7648
7649 if(!large_file_format) {
7650 offset = (uint64_t)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
7651 } else {
7652
7653 #if defined(HAVE_LONGLONG)
7654 offset = (((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) |
7655 ((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
7656 #else /* HAVE_LONGLONG */
7657
7658 /*
7659 * NT4.x seems to be broken in that it sends large file (64 bit)
7660 * lockingX calls even if the CAP_LARGE_FILES was *not*
7661 * negotiated. For boxes without large unsigned ints mangle the
7662 * lock offset by mapping the top 32 bits onto the lower 32.
7663 */
7664
7665 if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
7666 uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
7667 uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
7668 uint32 new_low = 0;
7669
7670 if((new_low = map_lock_offset(high, low)) == 0) {
7671 *err = True;
7672 return (uint64_t)-1;
7673 }
7674
7675 DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
7676 (unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
7677 SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
7678 SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
7679 }
7680
7681 offset = (uint64_t)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
7682 #endif /* HAVE_LONGLONG */
7683 }
7684
7685 return offset;
7686 }
7687
7688 NTSTATUS smbd_do_locking(struct smb_request *req,
7689 files_struct *fsp,
7690 uint8_t type,
7691 int32_t timeout,
7692 uint16_t num_ulocks,
7693 struct smbd_lock_element *ulocks,
7694 uint16_t num_locks,
7695 struct smbd_lock_element *locks,
7696 bool *async)
7697 {
7698 connection_struct *conn = req->conn;
7699 int i;
7700 NTSTATUS status = NT_STATUS_OK;
7701
7702 *async = false;
7703
7704 /* Data now points at the beginning of the list
7705 of smb_unlkrng structs */
7706 for(i = 0; i < (int)num_ulocks; i++) {
7707 struct smbd_lock_element *e = &ulocks[i];
7708
7709 DEBUG(10,("smbd_do_locking: unlock start=%.0f, len=%.0f for "
7710 "pid %u, file %s\n",
7711 (double)e->offset,
7712 (double)e->count,
7713 (unsigned int)e->smblctx,
7714 fsp_str_dbg(fsp)));
7715
7716 if (e->brltype != UNLOCK_LOCK) {
7717 /* this can only happen with SMB2 */
7718 return NT_STATUS_INVALID_PARAMETER;
7719 }
7720
7721 status = do_unlock(req->sconn->msg_ctx,
7722 fsp,
7723 e->smblctx,
7724 e->count,
7725 e->offset,
7726 WINDOWS_LOCK);
7727
7728 DEBUG(10, ("smbd_do_locking: unlock returned %s\n",
7729 nt_errstr(status)));
7730
7731 if (!NT_STATUS_IS_OK(status)) {
7732 return status;
7733 }
7734 }
7735
7736 /* Setup the timeout in seconds. */
7737
7738 if (!lp_blocking_locks(SNUM(conn))) {
7739 timeout = 0;
7740 }
7741
7742 /* Data now points at the beginning of the list
7743 of smb_lkrng structs */
7744
7745 for(i = 0; i < (int)num_locks; i++) {
7746 struct smbd_lock_element *e = &locks[i];
7747
7748 DEBUG(10,("smbd_do_locking: lock start=%.0f, len=%.0f for smblctx "
7749 "%llu, file %s timeout = %d\n",
7750 (double)e->offset,
7751 (double)e->count,
7752 (unsigned long long)e->smblctx,
7753 fsp_str_dbg(fsp),
7754 (int)timeout));
7755
7756 if (type & LOCKING_ANDX_CANCEL_LOCK) {
7757 struct blocking_lock_record *blr = NULL;
7758
7759 if (num_locks > 1) {
7760 /*
7761 * MS-CIFS (2.2.4.32.1) states that a cancel is honored if and only
7762 * if the lock vector contains one entry. When given mutliple cancel
7763 * requests in a single PDU we expect the server to return an
7764 * error. Windows servers seem to accept the request but only
7765 * cancel the first lock.
7766 * JRA - Do what Windows does (tm) :-).
7767 */
7768
7769 #if 0
7770 /* MS-CIFS (2.2.4.32.1) behavior. */
7771 return NT_STATUS_DOS(ERRDOS,
7772 ERRcancelviolation);
7773 #else
7774 /* Windows behavior. */
7775 if (i != 0) {
7776 DEBUG(10,("smbd_do_locking: ignoring subsequent "
7777 "cancel request\n"));
7778 continue;
7779 }
7780 #endif
7781 }
7782
7783 if (lp_blocking_locks(SNUM(conn))) {
7784
7785 /* Schedule a message to ourselves to
7786 remove the blocking lock record and
7787 return the right error. */
7788
7789 blr = blocking_lock_cancel_smb1(fsp,
7790 e->smblctx,
7791 e->offset,
7792 e->count,
7793 WINDOWS_LOCK,
7794 type,
7795 NT_STATUS_FILE_LOCK_CONFLICT);
7796 if (blr == NULL) {
7797 return NT_STATUS_DOS(
7798 ERRDOS,
7799 ERRcancelviolation);
7800 }
7801 }
7802 /* Remove a matching pending lock. */
7803 status = do_lock_cancel(fsp,
7804 e->smblctx,
7805 e->count,
7806 e->offset,
7807 WINDOWS_LOCK,
7808 blr);
7809 } else {
7810 bool blocking_lock = timeout ? true : false;
7811 bool defer_lock = false;
7812 struct byte_range_lock *br_lck;
7813 uint64_t block_smblctx;
7814
7815 br_lck = do_lock(req->sconn->msg_ctx,
7816 fsp,
7817 e->smblctx,
7818 e->count,
7819 e->offset,
7820 e->brltype,
7821 WINDOWS_LOCK,
7822 blocking_lock,
7823 &status,
7824 &block_smblctx,
7825 NULL);
7826
7827 if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
7828 /* Windows internal resolution for blocking locks seems
7829 to be about 200ms... Don't wait for less than that. JRA. */
7830 if (timeout != -1 && timeout < lp_lock_spin_time()) {
7831 timeout = lp_lock_spin_time();
7832 }
7833 defer_lock = true;
7834 }
7835
7836 /* If a lock sent with timeout of zero would fail, and
7837 * this lock has been requested multiple times,
7838 * according to brl_lock_failed() we convert this
7839 * request to a blocking lock with a timeout of between
7840 * 150 - 300 milliseconds.
7841 *
7842 * If lp_lock_spin_time() has been set to 0, we skip
7843 * this blocking retry and fail immediately.
7844 *
7845 * Replacement for do_lock_spin(). JRA. */
7846
7847 if (!req->sconn->using_smb2 &&
7848 br_lck && lp_blocking_locks(SNUM(conn)) &&
7849 lp_lock_spin_time() && !blocking_lock &&
7850 NT_STATUS_EQUAL((status),
7851 NT_STATUS_FILE_LOCK_CONFLICT))
7852 {
7853 defer_lock = true;
7854 timeout = lp_lock_spin_time();
7855 }
7856
7857 if (br_lck && defer_lock) {
7858 /*
7859 * A blocking lock was requested. Package up
7860 * this smb into a queued request and push it
7861 * onto the blocking lock queue.
7862 */
7863 if(push_blocking_lock_request(br_lck,
7864 req,
7865 fsp,
7866 timeout,
7867 i,
7868 e->smblctx,
7869 e->brltype,
7870 WINDOWS_LOCK,
7871 e->offset,
7872 e->count,
7873 block_smblctx)) {
7874 TALLOC_FREE(br_lck);
7875 *async = true;
7876 return NT_STATUS_OK;
7877 }
7878 }
7879
7880 TALLOC_FREE(br_lck);
7881 }
7882
7883 if (!NT_STATUS_IS_OK(status)) {
7884 break;
7885 }
7886 }
7887
7888 /* If any of the above locks failed, then we must unlock
7889 all of the previous locks (X/Open spec). */
7890
7891 if (num_locks != 0 && !NT_STATUS_IS_OK(status)) {
7892
7893 if (type & LOCKING_ANDX_CANCEL_LOCK) {
7894 i = -1; /* we want to skip the for loop */
7895 }
7896
7897 /*
7898 * Ensure we don't do a remove on the lock that just failed,
7899 * as under POSIX rules, if we have a lock already there, we
7900 * will delete it (and we shouldn't) .....
7901 */
7902 for(i--; i >= 0; i--) {
7903 struct smbd_lock_element *e = &locks[i];
7904
7905 do_unlock(req->sconn->msg_ctx,
7906 fsp,
7907 e->smblctx,
7908 e->count,
7909 e->offset,
7910 WINDOWS_LOCK);
7911 }
7912 return status;
7913 }
7914
7915 DEBUG(3, ("smbd_do_locking: %s type=%d num_locks=%d num_ulocks=%d\n",
7916 fsp_fnum_dbg(fsp), (unsigned int)type, num_locks, num_ulocks));
7917
7918 return NT_STATUS_OK;
7919 }
7920
7921 /****************************************************************************
7922 Reply to a lockingX request.
7923 ****************************************************************************/
7924
7925 void reply_lockingX(struct smb_request *req)
7926 {
7927 connection_struct *conn = req->conn;
7928 files_struct *fsp;
7929 unsigned char locktype;
7930 unsigned char oplocklevel;
7931 uint16 num_ulocks;
7932 uint16 num_locks;
7933 int32 lock_timeout;
7934 int i;
7935 const uint8_t *data;
7936 bool large_file_format;
7937 bool err;
7938 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
7939 struct smbd_lock_element *ulocks;
7940 struct smbd_lock_element *locks;
7941 bool async = false;
7942
7943 START_PROFILE(SMBlockingX);
7944
7945 if (req->wct < 8) {
7946 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7947 END_PROFILE(SMBlockingX);
7948 return;
7949 }
7950
7951 fsp = file_fsp(req, SVAL(req->vwv+2, 0));
7952 locktype = CVAL(req->vwv+3, 0);
7953 oplocklevel = CVAL(req->vwv+3, 1);
7954 num_ulocks = SVAL(req->vwv+6, 0);
7955 num_locks = SVAL(req->vwv+7, 0);
7956 lock_timeout = IVAL(req->vwv+4, 0);
7957 large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
7958
7959 if (!check_fsp(conn, req, fsp)) {
7960 END_PROFILE(SMBlockingX);
7961 return;
7962 }
7963
7964 data = req->buf;
7965
7966 if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
7967 /* we don't support these - and CANCEL_LOCK makes w2k
7968 and XP reboot so I don't really want to be
7969 compatible! (tridge) */
7970 reply_force_doserror(req, ERRDOS, ERRnoatomiclocks);
7971 END_PROFILE(SMBlockingX);
7972 return;
7973 }
7974
7975 /* Check if this is an oplock break on a file
7976 we have granted an oplock on.
7977 */
7978 if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
7979 /* Client can insist on breaking to none. */
7980 bool break_to_none = (oplocklevel == 0);
7981 bool result;
7982
7983 DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
7984 "for %s\n", (unsigned int)oplocklevel,
7985 fsp_fnum_dbg(fsp)));
7986
7987 /*
7988 * Make sure we have granted an exclusive or batch oplock on
7989 * this file.
7990 */
7991
7992 if (fsp->oplock_type == 0) {
7993
7994 /* The Samba4 nbench simulator doesn't understand
7995 the difference between break to level2 and break
7996 to none from level2 - it sends oplock break
7997 replies in both cases. Don't keep logging an error
7998 message here - just ignore it. JRA. */
7999
8000 DEBUG(5,("reply_lockingX: Error : oplock break from "
8001 "client for %s (oplock=%d) and no "
8002 "oplock granted on this file (%s).\n",
8003 fsp_fnum_dbg(fsp), fsp->oplock_type,
8004 fsp_str_dbg(fsp)));
8005
8006 /* if this is a pure oplock break request then don't
8007 * send a reply */
8008 if (num_locks == 0 && num_ulocks == 0) {
8009 END_PROFILE(SMBlockingX);
8010 return;
8011 } else {
8012 END_PROFILE(SMBlockingX);
8013 reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
8014 return;
8015 }
8016 }
8017
8018 if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) ||
8019 (break_to_none)) {
8020 result = remove_oplock(fsp);
8021 } else {
8022 result = downgrade_oplock(fsp);
8023 }
8024
8025 if (!result) {
8026 DEBUG(0, ("reply_lockingX: error in removing "
8027 "oplock on file %s\n", fsp_str_dbg(fsp)));
8028 /* Hmmm. Is this panic justified? */
8029 smb_panic("internal tdb error");
8030 }
8031
8032 /* if this is a pure oplock break request then don't send a
8033 * reply */
8034 if (num_locks == 0 && num_ulocks == 0) {
8035 /* Sanity check - ensure a pure oplock break is not a
8036 chained request. */
8037 if(CVAL(req->vwv+0, 0) != 0xff)
8038 DEBUG(0,("reply_lockingX: Error : pure oplock "
8039 "break is a chained %d request !\n",
8040 (unsigned int)CVAL(req->vwv+0, 0)));
8041 END_PROFILE(SMBlockingX);
8042 return;
8043 }
8044 }
8045
8046 if (req->buflen <
8047 (num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
8048 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
8049 END_PROFILE(SMBlockingX);
8050 return;
8051 }
8052
8053 ulocks = talloc_array(req, struct smbd_lock_element, num_ulocks);
8054 if (ulocks == NULL) {
8055 reply_nterror(req, NT_STATUS_NO_MEMORY);
8056 END_PROFILE(SMBlockingX);
8057 return;
8058 }
8059
8060 locks = talloc_array(req, struct smbd_lock_element, num_locks);
8061 if (locks == NULL) {
8062 reply_nterror(req, NT_STATUS_NO_MEMORY);
8063 END_PROFILE(SMBlockingX);
8064 return;
8065 }
8066
8067 /* Data now points at the beginning of the list
8068 of smb_unlkrng structs */
8069 for(i = 0; i < (int)num_ulocks; i++) {
8070 ulocks[i].smblctx = get_lock_pid(data, i, large_file_format);
8071 ulocks[i].count = get_lock_count(data, i, large_file_format);
8072 ulocks[i].offset = get_lock_offset(data, i, large_file_format, &err);
8073 ulocks[i].brltype = UNLOCK_LOCK;
8074
8075 /*
8076 * There is no error code marked "stupid client bug".... :-).
8077 */
8078 if(err) {
8079 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
8080 END_PROFILE(SMBlockingX);
8081 return;
8082 }
8083 }
8084
8085 /* Now do any requested locks */
8086 data += ((large_file_format ? 20 : 10)*num_ulocks);
8087
8088 /* Data now points at the beginning of the list
8089 of smb_lkrng structs */
8090
8091 for(i = 0; i < (int)num_locks; i++) {
8092 locks[i].smblctx = get_lock_pid(data, i, large_file_format);
8093 locks[i].count = get_lock_count(data, i, large_file_format);
8094 locks[i].offset = get_lock_offset(data, i, large_file_format, &err);
8095
8096 if (locktype & LOCKING_ANDX_SHARED_LOCK) {
8097 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
8098 locks[i].brltype = PENDING_READ_LOCK;
8099 } else {
8100 locks[i].brltype = READ_LOCK;
8101 }
8102 } else {
8103 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
8104 locks[i].brltype = PENDING_WRITE_LOCK;
8105 } else {
8106 locks[i].brltype = WRITE_LOCK;
8107 }
8108 }
8109
8110 /*
8111 * There is no error code marked "stupid client bug".... :-).
8112 */
8113 if(err) {
8114 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
8115 END_PROFILE(SMBlockingX);
8116 return;
8117 }
8118 }
8119
8120 status = smbd_do_locking(req, fsp,
8121 locktype, lock_timeout,
8122 num_ulocks, ulocks,
8123 num_locks, locks,
8124 &async);
8125 if (!NT_STATUS_IS_OK(status)) {
8126 END_PROFILE(SMBlockingX);
8127 reply_nterror(req, status);
8128 return;
8129 }
8130 if (async) {
8131 END_PROFILE(SMBlockingX);
8132 return;
8133 }
8134
8135 reply_outbuf(req, 2, 0);
8136 SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
8137 SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
8138
8139 DEBUG(3, ("lockingX %s type=%d num_locks=%d num_ulocks=%d\n",
8140 fsp_fnum_dbg(fsp), (unsigned int)locktype, num_locks, num_ulocks));
8141
8142 END_PROFILE(SMBlockingX);
8143 }
8144
8145 #undef DBGC_CLASS
8146 #define DBGC_CLASS DBGC_ALL
8147
8148 /****************************************************************************
8149 Reply to a SMBreadbmpx (read block multiplex) request.
8150 Always reply with an error, if someone has a platform really needs this,
8151 please contact vl@samba.org
8152 ****************************************************************************/
8153
8154 void reply_readbmpx(struct smb_request *req)
8155 {
8156 START_PROFILE(SMBreadBmpx);
8157 reply_force_doserror(req, ERRSRV, ERRuseSTD);
8158 END_PROFILE(SMBreadBmpx);
8159 return;
8160 }
8161
8162 /****************************************************************************
8163 Reply to a SMBreadbs (read block multiplex secondary) request.
8164 Always reply with an error, if someone has a platform really needs this,
8165 please contact vl@samba.org
8166 ****************************************************************************/
8167
8168 void reply_readbs(struct smb_request *req)
8169 {
8170 START_PROFILE(SMBreadBs);
8171 reply_force_doserror(req, ERRSRV, ERRuseSTD);
8172 END_PROFILE(SMBreadBs);
8173 return;
8174 }
8175
8176 /****************************************************************************
8177 Reply to a SMBsetattrE.
8178 ****************************************************************************/
8179
8180 void reply_setattrE(struct smb_request *req)
8181 {
8182 connection_struct *conn = req->conn;
8183 struct smb_file_time ft;
8184 files_struct *fsp;
8185 NTSTATUS status;
8186
8187 START_PROFILE(SMBsetattrE);
8188 ZERO_STRUCT(ft);
8189
8190 if (req->wct < 7) {
8191 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
8192 goto out;
8193 }
8194
8195 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
8196
8197 if(!fsp || (fsp->conn != conn)) {
8198 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
8199 goto out;
8200 }
8201
8202 /*
8203 * Convert the DOS times into unix times.
8204 */
8205
8206 ft.atime = convert_time_t_to_timespec(
8207 srv_make_unix_date2(req->vwv+3));
8208 ft.mtime = convert_time_t_to_timespec(
8209 srv_make_unix_date2(req->vwv+5));
8210 ft.create_time = convert_time_t_to_timespec(
8211 srv_make_unix_date2(req->vwv+1));
8212
8213 reply_outbuf(req, 0, 0);
8214
8215 /*
8216 * Patch from Ray Frush <frush@engr.colostate.edu>
8217 * Sometimes times are sent as zero - ignore them.
8218 */
8219
8220 /* Ensure we have a valid stat struct for the source. */
8221 status = vfs_stat_fsp(fsp);
8222 if (!NT_STATUS_IS_OK(status)) {
8223 reply_nterror(req, status);
8224 goto out;
8225 }
8226
8227 if (!(fsp->access_mask & FILE_WRITE_ATTRIBUTES)) {
8228 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
8229 goto out;
8230 }
8231
8232 status = smb_set_file_time(conn, fsp, fsp->fsp_name, &ft, true);
8233 if (!NT_STATUS_IS_OK(status)) {
8234 reply_nterror(req, status);
8235 goto out;
8236 }
8237
8238 DEBUG( 3, ( "reply_setattrE %s actime=%u modtime=%u "
8239 " createtime=%u\n",
8240 fsp_fnum_dbg(fsp),
8241 (unsigned int)ft.atime.tv_sec,
8242 (unsigned int)ft.mtime.tv_sec,
8243 (unsigned int)ft.create_time.tv_sec
8244 ));
8245 out:
8246 END_PROFILE(SMBsetattrE);
8247 return;
8248 }
8249
8250
8251 /* Back from the dead for OS/2..... JRA. */
8252
8253 /****************************************************************************
8254 Reply to a SMBwritebmpx (write block multiplex primary) request.
8255 Always reply with an error, if someone has a platform really needs this,
8256 please contact vl@samba.org
8257 ****************************************************************************/
8258
8259 void reply_writebmpx(struct smb_request *req)
8260 {
8261 START_PROFILE(SMBwriteBmpx);
8262 reply_force_doserror(req, ERRSRV, ERRuseSTD);
8263 END_PROFILE(SMBwriteBmpx);
8264 return;
8265 }
8266
8267 /****************************************************************************
8268 Reply to a SMBwritebs (write block multiplex secondary) request.
8269 Always reply with an error, if someone has a platform really needs this,
8270 please contact vl@samba.org
8271 ****************************************************************************/
8272
8273 void reply_writebs(struct smb_request *req)
8274 {
8275 START_PROFILE(SMBwriteBs);
8276 reply_force_doserror(req, ERRSRV, ERRuseSTD);
8277 END_PROFILE(SMBwriteBs);
8278 return;
8279 }
8280
8281 /****************************************************************************
8282 Reply to a SMBgetattrE.
8283 ****************************************************************************/
8284
8285 void reply_getattrE(struct smb_request *req)
8286 {
8287 connection_struct *conn = req->conn;
8288 int mode;
8289 files_struct *fsp;
8290 struct timespec create_ts;
8291
8292 START_PROFILE(SMBgetattrE);
8293
8294 if (req->wct < 1) {
8295 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
8296 END_PROFILE(SMBgetattrE);
8297 return;
8298 }
8299
8300 fsp = file_fsp(req, SVAL(req->vwv+0, 0));
8301
8302 if(!fsp || (fsp->conn != conn)) {
8303 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
8304 END_PROFILE(SMBgetattrE);
8305 return;
8306 }
8307
8308 /* Do an fstat on this file */
8309 if(fsp_stat(fsp)) {
8310 reply_nterror(req, map_nt_error_from_unix(errno));
8311 END_PROFILE(SMBgetattrE);
8312 return;
8313 }
8314
8315 mode = dos_mode(conn, fsp->fsp_name);
8316
8317 /*
8318 * Convert the times into dos times. Set create
8319 * date to be last modify date as UNIX doesn't save
8320 * this.
8321 */
8322
8323 reply_outbuf(req, 11, 0);
8324
8325 create_ts = get_create_timespec(conn, fsp, fsp->fsp_name);
8326 srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec);
8327 srv_put_dos_date2((char *)req->outbuf, smb_vwv2,
8328 convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_atime));
8329 /* Should we check pending modtime here ? JRA */
8330 srv_put_dos_date2((char *)req->outbuf, smb_vwv4,
8331 convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_mtime));
8332
8333 if (mode & FILE_ATTRIBUTE_DIRECTORY) {
8334 SIVAL(req->outbuf, smb_vwv6, 0);
8335 SIVAL(req->outbuf, smb_vwv8, 0);
8336 } else {
8337 uint32 allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn,fsp, &fsp->fsp_name->st);
8338 SIVAL(req->outbuf, smb_vwv6, (uint32)fsp->fsp_name->st.st_ex_size);
8339 SIVAL(req->outbuf, smb_vwv8, allocation_size);
8340 }
8341 SSVAL(req->outbuf,smb_vwv10, mode);
8342
8343 DEBUG( 3, ( "reply_getattrE %s\n", fsp_fnum_dbg(fsp)));
8344
8345 END_PROFILE(SMBgetattrE);
8346 return;
8347 }
reg import