Context Navigation

source: vendor/3.6.0/source3/smbd/reply.c

Visit:

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago
Samba Server: update vendor to 3.6.0
File size: 207.1 KB

Line
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 "rpc_client/cli_spoolss.h"
36	#include "rpc_client/init_spoolss.h"
37	#include "rpc_server/rpc_ncacn_np.h"
38	#include "libcli/security/security.h"
39	#include "libsmb/nmblib.h"
40	#include "auth.h"
41	#include "smbprofile.h"
42
43	/****************************************************************************
44	Ensure we check the path in exactly the same way as W2K for a findfirst/findnext
45	path or anything including wildcards.
46	We're assuming here that '/' is not the second byte in any multibyte char
47	set (a safe assumption). '\\' may be the second byte in a multibyte char
48	set.
49	****************************************************************************/
50
51	/* Custom version for processing POSIX paths. */
52	#define IS_PATH_SEP(c,posix_only) ((c) == '/' \|\| (!(posix_only) && (c) == '\\'))
53
54	static NTSTATUS check_path_syntax_internal(char *path,
55	bool posix_path,
56	bool *p_last_component_contains_wcard)
57	{
58	char *d = path;
59	const char *s = path;
60	NTSTATUS ret = NT_STATUS_OK;
61	bool start_of_name_component = True;
62	bool stream_started = false;
63
64	*p_last_component_contains_wcard = False;
65
66	while (*s) {
67	if (stream_started) {
68	switch (*s) {
69	case '/':
70	case '\\':
71	return NT_STATUS_OBJECT_NAME_INVALID;
72	case ':':
73	if (s[1] == '\0') {
74	return NT_STATUS_OBJECT_NAME_INVALID;
75	}
76	if (strchr_m(&s[1], ':')) {
77	return NT_STATUS_OBJECT_NAME_INVALID;
78	}
79	break;
80	}
81	}
82
83	if ((*s == ':') && !posix_path && !stream_started) {
84	if (*p_last_component_contains_wcard) {
85	return NT_STATUS_OBJECT_NAME_INVALID;
86	}
87	/* Stream names allow more characters than file names.
88	We're overloading posix_path here to allow a wider
89	range of characters. If stream_started is true this
90	is still a Windows path even if posix_path is true.
91	JRA.
92	*/
93	stream_started = true;
94	start_of_name_component = false;
95	posix_path = true;
96
97	if (s[1] == '\0') {
98	return NT_STATUS_OBJECT_NAME_INVALID;
99	}
100	}
101
102	if (!stream_started && IS_PATH_SEP(*s,posix_path)) {
103	/*
104	* Safe to assume is not the second part of a mb char
105	* as this is handled below.
106	*/
107	/* Eat multiple '/' or '\\' */
108	while (IS_PATH_SEP(*s,posix_path)) {
109	s++;
110	}
111	if ((d != path) && (*s != '\0')) {
112	/* We only care about non-leading or trailing '/' or '\\' */
113	*d++ = '/';
114	}
115
116	start_of_name_component = True;
117	/* New component. */
118	*p_last_component_contains_wcard = False;
119	continue;
120	}
121
122	if (start_of_name_component) {
123	if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) \|\| s[2] == '\0')) {
124	/* Uh oh - "/../" or "\\..\\" or "/..\0" or "\\..\0" ! */
125
126	/*
127	* No mb char starts with '.' so we're safe checking the directory separator here.
128	*/
129
130	/* If we just added a '/' - delete it */
131	if ((d > path) && (*(d-1) == '/')) {
132	*(d-1) = '\0';
133	d--;
134	}
135
136	/* Are we at the start ? Can't go back further if so. */
137	if (d <= path) {
138	ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
139	break;
140	}
141	/* Go back one level... */
142	/* We know this is safe as '/' cannot be part of a mb sequence. */
143	/* NOTE - if this assumption is invalid we are not in good shape... */
144	/* Decrement d first as d points to the next char to write into. */
145	for (d--; d > path; d--) {
146	if (*d == '/')
147	break;
148	}
149	s += 2; /* Else go past the .. */
150	/* We're still at the start of a name component, just the previous one. */
151	continue;
152
153	} else if ((s[0] == '.') && ((s[1] == '\0') \|\| IS_PATH_SEP(s[1],posix_path))) {
154	if (posix_path) {
155	/* Eat the '.' */
156	s++;
157	continue;
158	}
159	}
160
161	}
162
163	if (!(*s & 0x80)) {
164	if (!posix_path) {
165	if (s <= 0x1f \|\| s == '\|') {
166	return NT_STATUS_OBJECT_NAME_INVALID;
167	}
168	switch (*s) {
169	case '*':
170	case '?':
171	case '<':
172	case '>':
173	case '"':
174	*p_last_component_contains_wcard = True;
175	break;
176	default:
177	break;
178	}
179	}
180	d++ = s++;
181	} else {
182	size_t siz;
183	/* Get the size of the next MB character. */
184	next_codepoint(s,&siz);
185	switch(siz) {
186	case 5:
187	d++ = s++;
188	/fall through/
189	case 4:
190	d++ = s++;
191	/fall through/
192	case 3:
193	d++ = s++;
194	/fall through/
195	case 2:
196	d++ = s++;
197	/fall through/
198	case 1:
199	d++ = s++;
200	break;
201	default:
202	DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
203	*d = '\0';
204	return NT_STATUS_INVALID_PARAMETER;
205	}
206	}
207	start_of_name_component = False;
208	}
209
210	*d = '\0';
211
212	return ret;
213	}
214
215	/****************************************************************************
216	Ensure we check the path in exactly the same way as W2K for regular pathnames.
217	No wildcards allowed.
218	****************************************************************************/
219
220	NTSTATUS check_path_syntax(char *path)
221	{
222	bool ignore;
223	return check_path_syntax_internal(path, False, &ignore);
224	}
225
226	/****************************************************************************
227	Ensure we check the path in exactly the same way as W2K for regular pathnames.
228	Wildcards allowed - p_contains_wcard returns true if the last component contained
229	a wildcard.
230	****************************************************************************/
231
232	NTSTATUS check_path_syntax_wcard(char path, bool p_contains_wcard)
233	{
234	return check_path_syntax_internal(path, False, p_contains_wcard);
235	}
236
237	/****************************************************************************
238	Check the path for a POSIX client.
239	We're assuming here that '/' is not the second byte in any multibyte char
240	set (a safe assumption).
241	****************************************************************************/
242
243	NTSTATUS check_path_syntax_posix(char *path)
244	{
245	bool ignore;
246	return check_path_syntax_internal(path, True, &ignore);
247	}
248
249	/****************************************************************************
250	Pull a string and check the path allowing a wilcard - provide for error return.
251	****************************************************************************/
252
253	size_t srvstr_get_path_wcard(TALLOC_CTX *ctx,
254	const char *base_ptr,
255	uint16 smb_flags2,
256	char **pp_dest,
257	const char *src,
258	size_t src_len,
259	int flags,
260	NTSTATUS *err,
261	bool *contains_wcard)
262	{
263	size_t ret;
264
265	*pp_dest = NULL;
266
267	ret = srvstr_pull_talloc(ctx, base_ptr, smb_flags2, pp_dest, src,
268	src_len, flags);
269
270	if (!*pp_dest) {
271	*err = NT_STATUS_INVALID_PARAMETER;
272	return ret;
273	}
274
275	*contains_wcard = False;
276
277	if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
278	/*
279	* For a DFS path the function parse_dfs_path()
280	* will do the path processing, just make a copy.
281	*/
282	*err = NT_STATUS_OK;
283	return ret;
284	}
285
286	if (lp_posix_pathnames()) {
287	err = check_path_syntax_posix(pp_dest);
288	} else {
289	err = check_path_syntax_wcard(pp_dest, contains_wcard);
290	}
291
292	return ret;
293	}
294
295	/****************************************************************************
296	Pull a string and check the path - provide for error return.
297	****************************************************************************/
298
299	size_t srvstr_get_path(TALLOC_CTX *ctx,
300	const char *base_ptr,
301	uint16 smb_flags2,
302	char **pp_dest,
303	const char *src,
304	size_t src_len,
305	int flags,
306	NTSTATUS *err)
307	{
308	bool ignore;
309	return srvstr_get_path_wcard(ctx, base_ptr, smb_flags2, pp_dest, src,
310	src_len, flags, err, &ignore);
311	}
312
313	size_t srvstr_get_path_req_wcard(TALLOC_CTX mem_ctx, struct smb_request req,
314	char *pp_dest, const char src, int flags,
315	NTSTATUS err, bool contains_wcard)
316	{
317	return srvstr_get_path_wcard(mem_ctx, (char *)req->inbuf, req->flags2,
318	pp_dest, src, smbreq_bufrem(req, src),
319	flags, err, contains_wcard);
320	}
321
322	size_t srvstr_get_path_req(TALLOC_CTX mem_ctx, struct smb_request req,
323	char *pp_dest, const char src, int flags,
324	NTSTATUS *err)
325	{
326	bool ignore;
327	return srvstr_get_path_req_wcard(mem_ctx, req, pp_dest, src,
328	flags, err, &ignore);
329	}
330
331	/****************************************************************************
332	Check if we have a correct fsp pointing to a file. Basic check for open fsp.
333	****************************************************************************/
334
335	bool check_fsp_open(connection_struct conn, struct smb_request req,
336	files_struct *fsp)
337	{
338	if ((fsp == NULL) \|\| (conn == NULL)) {
339	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
340	return False;
341	}
342	if ((conn != fsp->conn) \|\| (req->vuid != fsp->vuid)) {
343	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
344	return False;
345	}
346	return True;
347	}
348
349	/****************************************************************************
350	Check if we have a correct fsp pointing to a file.
351	****************************************************************************/
352
353	bool check_fsp(connection_struct conn, struct smb_request req,
354	files_struct *fsp)
355	{
356	if (!check_fsp_open(conn, req, fsp)) {
357	return False;
358	}
359	if (fsp->is_directory) {
360	reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
361	return False;
362	}
363	if (fsp->fh->fd == -1) {
364	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
365	return False;
366	}
367	fsp->num_smb_operations++;
368	return True;
369	}
370
371	/****************************************************************************
372	Check if we have a correct fsp pointing to a quota fake file. Replacement for
373	the CHECK_NTQUOTA_HANDLE_OK macro.
374	****************************************************************************/
375
376	bool check_fsp_ntquota_handle(connection_struct conn, struct smb_request req,
377	files_struct *fsp)
378	{
379	if (!check_fsp_open(conn, req, fsp)) {
380	return false;
381	}
382
383	if (fsp->is_directory) {
384	return false;
385	}
386
387	if (fsp->fake_file_handle == NULL) {
388	return false;
389	}
390
391	if (fsp->fake_file_handle->type != FAKE_FILE_TYPE_QUOTA) {
392	return false;
393	}
394
395	if (fsp->fake_file_handle->private_data == NULL) {
396	return false;
397	}
398
399	return true;
400	}
401
402	static bool netbios_session_retarget(struct smbd_server_connection *sconn,
403	const char *name, int name_type)
404	{
405	char *trim_name;
406	char *trim_name_type;
407	const char *retarget_parm;
408	char *retarget;
409	char *p;
410	int retarget_type = 0x20;
411	int retarget_port = 139;
412	struct sockaddr_storage retarget_addr;
413	struct sockaddr_in *in_addr;
414	bool ret = false;
415	uint8_t outbuf[10];
416
417	if (get_socket_port(sconn->sock) != 139) {
418	return false;
419	}
420
421	trim_name = talloc_strdup(talloc_tos(), name);
422	if (trim_name == NULL) {
423	goto fail;
424	}
425	trim_char(trim_name, ' ', ' ');
426
427	trim_name_type = talloc_asprintf(trim_name, "%s#%2.2x", trim_name,
428	name_type);
429	if (trim_name_type == NULL) {
430	goto fail;
431	}
432
433	retarget_parm = lp_parm_const_string(-1, "netbios retarget",
434	trim_name_type, NULL);
435	if (retarget_parm == NULL) {
436	retarget_parm = lp_parm_const_string(-1, "netbios retarget",
437	trim_name, NULL);
438	}
439	if (retarget_parm == NULL) {
440	goto fail;
441	}
442
443	retarget = talloc_strdup(trim_name, retarget_parm);
444	if (retarget == NULL) {
445	goto fail;
446	}
447
448	DEBUG(10, ("retargeting %s to %s\n", trim_name_type, retarget));
449
450	p = strchr(retarget, ':');
451	if (p != NULL) {
452	*p++ = '\0';
453	retarget_port = atoi(p);
454	}
455
456	p = strchr_m(retarget, '#');
457	if (p != NULL) {
458	*p++ = '\0';
459	if (sscanf(p, "%x", &retarget_type) != 1) {
460	goto fail;
461	}
462	}
463
464	ret = resolve_name(retarget, &retarget_addr, retarget_type, false);
465	if (!ret) {
466	DEBUG(10, ("could not resolve %s\n", retarget));
467	goto fail;
468	}
469
470	if (retarget_addr.ss_family != AF_INET) {
471	DEBUG(10, ("Retarget target not an IPv4 addr\n"));
472	goto fail;
473	}
474
475	in_addr = (struct sockaddr_in )(void )&retarget_addr;
476
477	_smb_setlen(outbuf, 6);
478	SCVAL(outbuf, 0, 0x84);
479	(uint32_t )(outbuf+4) = in_addr->sin_addr.s_addr;
480	(uint16_t )(outbuf+8) = htons(retarget_port);
481
482	if (!srv_send_smb(sconn, (char *)outbuf, false, 0, false,
483	NULL)) {
484	exit_server_cleanly("netbios_session_regarget: srv_send_smb "
485	"failed.");
486	}
487
488	ret = true;
489	fail:
490	TALLOC_FREE(trim_name);
491	return ret;
492	}
493
494	/****************************************************************************
495	Reply to a (netbios-level) special message.
496	****************************************************************************/
497
498	void reply_special(struct smbd_server_connection sconn, char inbuf, size_t inbuf_size)
499	{
500	int msg_type = CVAL(inbuf,0);
501	int msg_flags = CVAL(inbuf,1);
502	/*
503	* We only really use 4 bytes of the outbuf, but for the smb_setlen
504	* calculation & friends (srv_send_smb uses that) we need the full smb
505	* header.
506	*/
507	char outbuf[smb_size];
508
509	memset(outbuf, '\0', sizeof(outbuf));
510
511	smb_setlen(outbuf,0);
512
513	switch (msg_type) {
514	case 0x81: /* session request */
515	{
516	/* inbuf_size is guarenteed to be at least 4. */
517	fstring name1,name2;
518	int name_type1, name_type2;
519	int name_len1, name_len2;
520
521	name1 = name2 = 0;
522
523	if (sconn->nbt.got_session) {
524	exit_server_cleanly("multiple session request not permitted");
525	}
526
527	SCVAL(outbuf,0,0x82);
528	SCVAL(outbuf,3,0);
529
530	/* inbuf_size is guaranteed to be at least 4. */
531	name_len1 = name_len((unsigned char *)(inbuf+4),inbuf_size - 4);
532	if (name_len1 <= 0 \|\| name_len1 > inbuf_size - 4) {
533	DEBUG(0,("Invalid name length in session request\n"));
534	break;
535	}
536	name_len2 = name_len((unsigned char *)(inbuf+4+name_len1),inbuf_size - 4 - name_len1);
537	if (name_len2 <= 0 \|\| name_len2 > inbuf_size - 4 - name_len1) {
538	DEBUG(0,("Invalid name length in session request\n"));
539	break;
540	}
541
542	name_type1 = name_extract((unsigned char *)inbuf,
543	inbuf_size,(unsigned int)4,name1);
544	name_type2 = name_extract((unsigned char *)inbuf,
545	inbuf_size,(unsigned int)(4 + name_len1),name2);
546
547	if (name_type1 == -1 \|\| name_type2 == -1) {
548	DEBUG(0,("Invalid name type in session request\n"));
549	break;
550	}
551
552	DEBUG(2,("netbios connect: name1=%s0x%x name2=%s0x%x\n",
553	name1, name_type1, name2, name_type2));
554
555	if (netbios_session_retarget(sconn, name1, name_type1)) {
556	exit_server_cleanly("retargeted client");
557	}
558
559	/*
560	* Windows NT/2k uses "*SMBSERVER" and XP uses
561	* "*SMBSERV" arrggg!!!
562	*/
563	if (strequal(name1, "*SMBSERVER ")
564	\|\| strequal(name1, "*SMBSERV ")) {
565	fstrcpy(name1, sconn->client_id.addr);
566	}
567
568	set_local_machine_name(name1, True);
569	set_remote_machine_name(name2, True);
570
571	DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
572	get_local_machine_name(), get_remote_machine_name(),
573	name_type2));
574
575	if (name_type2 == 'R') {
576	/* We are being asked for a pathworks session ---
577	no thanks! */
578	SCVAL(outbuf, 0,0x83);
579	break;
580	}
581
582	/* only add the client's machine name to the list
583	of possibly valid usernames if we are operating
584	in share mode security */
585	if (lp_security() == SEC_SHARE) {
586	add_session_user(sconn, get_remote_machine_name());
587	}
588
589	reload_services(sconn->msg_ctx, sconn->sock, True);
590	reopen_logs();
591
592	sconn->nbt.got_session = true;
593	break;
594	}
595
596	case 0x89: /* session keepalive request
597	(some old clients produce this?) */
598	SCVAL(outbuf,0,SMBkeepalive);
599	SCVAL(outbuf,3,0);
600	break;
601
602	case 0x82: /* positive session response */
603	case 0x83: /* negative session response */
604	case 0x84: /* retarget session response */
605	DEBUG(0,("Unexpected session response\n"));
606	break;
607
608	case SMBkeepalive: /* session keepalive */
609	default:
610	return;
611	}
612
613	DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
614	msg_type, msg_flags));
615
616	srv_send_smb(sconn, outbuf, false, 0, false, NULL);
617	return;
618	}
619
620	/****************************************************************************
621	Reply to a tcon.
622	conn POINTER CAN BE NULL HERE !
623	****************************************************************************/
624
625	void reply_tcon(struct smb_request *req)
626	{
627	connection_struct *conn = req->conn;
628	const char *service;
629	char *service_buf = NULL;
630	char *password = NULL;
631	char *dev = NULL;
632	int pwlen=0;
633	NTSTATUS nt_status;
634	const char *p;
635	DATA_BLOB password_blob;
636	TALLOC_CTX *ctx = talloc_tos();
637	struct smbd_server_connection *sconn = req->sconn;
638
639	START_PROFILE(SMBtcon);
640
641	if (req->buflen < 4) {
642	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
643	END_PROFILE(SMBtcon);
644	return;
645	}
646
647	p = (const char *)req->buf + 1;
648	p += srvstr_pull_req_talloc(ctx, req, &service_buf, p, STR_TERMINATE);
649	p += 1;
650	pwlen = srvstr_pull_req_talloc(ctx, req, &password, p, STR_TERMINATE);
651	p += pwlen+1;
652	p += srvstr_pull_req_talloc(ctx, req, &dev, p, STR_TERMINATE);
653	p += 1;
654
655	if (service_buf == NULL \|\| password == NULL \|\| dev == NULL) {
656	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
657	END_PROFILE(SMBtcon);
658	return;
659	}
660	p = strrchr_m(service_buf,'\\');
661	if (p) {
662	service = p+1;
663	} else {
664	service = service_buf;
665	}
666
667	password_blob = data_blob(password, pwlen+1);
668
669	conn = make_connection(sconn,service,password_blob,dev,
670	req->vuid,&nt_status);
671	req->conn = conn;
672
673	data_blob_clear_free(&password_blob);
674
675	if (!conn) {
676	reply_nterror(req, nt_status);
677	END_PROFILE(SMBtcon);
678	return;
679	}
680
681	reply_outbuf(req, 2, 0);
682	SSVAL(req->outbuf,smb_vwv0,sconn->smb1.negprot.max_recv);
683	SSVAL(req->outbuf,smb_vwv1,conn->cnum);
684	SSVAL(req->outbuf,smb_tid,conn->cnum);
685
686	DEBUG(3,("tcon service=%s cnum=%d\n",
687	service, conn->cnum));
688
689	END_PROFILE(SMBtcon);
690	return;
691	}
692
693	/****************************************************************************
694	Reply to a tcon and X.
695	conn POINTER CAN BE NULL HERE !
696	****************************************************************************/
697
698	void reply_tcon_and_X(struct smb_request *req)
699	{
700	connection_struct *conn = req->conn;
701	const char *service = NULL;
702	DATA_BLOB password;
703	TALLOC_CTX *ctx = talloc_tos();
704	/* what the cleint thinks the device is */
705	char *client_devicetype = NULL;
706	/* what the server tells the client the share represents */
707	const char *server_devicetype;
708	NTSTATUS nt_status;
709	int passlen;
710	char *path = NULL;
711	const char p, q;
712	uint16 tcon_flags;
713	struct smbd_server_connection *sconn = req->sconn;
714
715	START_PROFILE(SMBtconX);
716
717	if (req->wct < 4) {
718	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
719	END_PROFILE(SMBtconX);
720	return;
721	}
722
723	passlen = SVAL(req->vwv+3, 0);
724	tcon_flags = SVAL(req->vwv+2, 0);
725
726	/* we might have to close an old one */
727	if ((tcon_flags & 0x1) && conn) {
728	close_cnum(conn,req->vuid);
729	req->conn = NULL;
730	conn = NULL;
731	}
732
733	if ((passlen > MAX_PASS_LEN) \|\| (passlen >= req->buflen)) {
734	reply_force_doserror(req, ERRDOS, ERRbuftoosmall);
735	END_PROFILE(SMBtconX);
736	return;
737	}
738
739	if (sconn->smb1.negprot.encrypted_passwords) {
740	password = data_blob_talloc(talloc_tos(), req->buf, passlen);
741	if (lp_security() == SEC_SHARE) {
742	/*
743	* Security = share always has a pad byte
744	* after the password.
745	*/
746	p = (const char *)req->buf + passlen + 1;
747	} else {
748	p = (const char *)req->buf + passlen;
749	}
750	} else {
751	password = data_blob_talloc(talloc_tos(), req->buf, passlen+1);
752	/* Ensure correct termination */
753	password.data[passlen]=0;
754	p = (const char *)req->buf + passlen + 1;
755	}
756
757	p += srvstr_pull_req_talloc(ctx, req, &path, p, STR_TERMINATE);
758
759	if (path == NULL) {
760	data_blob_clear_free(&password);
761	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
762	END_PROFILE(SMBtconX);
763	return;
764	}
765
766	/*
767	* the service name can be either: \\server\share
768	* or share directly like on the DELL PowerVault 705
769	*/
770	if (*path=='\\') {
771	q = strchr_m(path+2,'\\');
772	if (!q) {
773	data_blob_clear_free(&password);
774	reply_nterror(req, NT_STATUS_BAD_NETWORK_NAME);
775	END_PROFILE(SMBtconX);
776	return;
777	}
778	service = q+1;
779	} else {
780	service = path;
781	}
782
783	p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
784	&client_devicetype, p,
785	MIN(6, smbreq_bufrem(req, p)), STR_ASCII);
786
787	if (client_devicetype == NULL) {
788	data_blob_clear_free(&password);
789	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
790	END_PROFILE(SMBtconX);
791	return;
792	}
793
794	DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
795
796	conn = make_connection(sconn, service, password, client_devicetype,
797	req->vuid, &nt_status);
798	req->conn =conn;
799
800	data_blob_clear_free(&password);
801
802	if (!conn) {
803	reply_nterror(req, nt_status);
804	END_PROFILE(SMBtconX);
805	return;
806	}
807
808	if ( IS_IPC(conn) )
809	server_devicetype = "IPC";
810	else if ( IS_PRINT(conn) )
811	server_devicetype = "LPT1:";
812	else
813	server_devicetype = "A:";
814
815	if (get_Protocol() < PROTOCOL_NT1) {
816	reply_outbuf(req, 2, 0);
817	if (message_push_string(&req->outbuf, server_devicetype,
818	STR_TERMINATE\|STR_ASCII) == -1) {
819	reply_nterror(req, NT_STATUS_NO_MEMORY);
820	END_PROFILE(SMBtconX);
821	return;
822	}
823	} else {
824	/* NT sets the fstype of IPC$ to the null string */
825	const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
826
827	if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
828	/* Return permissions. */
829	uint32 perm1 = 0;
830	uint32 perm2 = 0;
831
832	reply_outbuf(req, 7, 0);
833
834	if (IS_IPC(conn)) {
835	perm1 = FILE_ALL_ACCESS;
836	perm2 = FILE_ALL_ACCESS;
837	} else {
838	perm1 = conn->share_access;
839	}
840
841	SIVAL(req->outbuf, smb_vwv3, perm1);
842	SIVAL(req->outbuf, smb_vwv5, perm2);
843	} else {
844	reply_outbuf(req, 3, 0);
845	}
846
847	if ((message_push_string(&req->outbuf, server_devicetype,
848	STR_TERMINATE\|STR_ASCII) == -1)
849	\|\| (message_push_string(&req->outbuf, fstype,
850	STR_TERMINATE) == -1)) {
851	reply_nterror(req, NT_STATUS_NO_MEMORY);
852	END_PROFILE(SMBtconX);
853	return;
854	}
855
856	/* what does setting this bit do? It is set by NT4 and
857	may affect the ability to autorun mounted cdroms */
858	SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS\|
859	(lp_csc_policy(SNUM(conn)) << 2));
860
861	if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {
862	DEBUG(2,("Serving %s as a Dfs root\n",
863	lp_servicename(SNUM(conn)) ));
864	SSVAL(req->outbuf, smb_vwv2,
865	SMB_SHARE_IN_DFS \| SVAL(req->outbuf, smb_vwv2));
866	}
867	}
868
869
870	DEBUG(3,("tconX service=%s \n",
871	service));
872
873	/* set the incoming and outgoing tid to the just created one */
874	SSVAL(req->inbuf,smb_tid,conn->cnum);
875	SSVAL(req->outbuf,smb_tid,conn->cnum);
876
877	END_PROFILE(SMBtconX);
878
879	req->tid = conn->cnum;
880	chain_reply(req);
881	return;
882	}
883
884	/****************************************************************************
885	Reply to an unknown type.
886	****************************************************************************/
887
888	void reply_unknown_new(struct smb_request *req, uint8 type)
889	{
890	DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
891	smb_fn_name(type), type, type));
892	reply_force_doserror(req, ERRSRV, ERRunknownsmb);
893	return;
894	}
895
896	/****************************************************************************
897	Reply to an ioctl.
898	conn POINTER CAN BE NULL HERE !
899	****************************************************************************/
900
901	void reply_ioctl(struct smb_request *req)
902	{
903	connection_struct *conn = req->conn;
904	uint16 device;
905	uint16 function;
906	uint32 ioctl_code;
907	int replysize;
908	char *p;
909
910	START_PROFILE(SMBioctl);
911
912	if (req->wct < 3) {
913	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
914	END_PROFILE(SMBioctl);
915	return;
916	}
917
918	device = SVAL(req->vwv+1, 0);
919	function = SVAL(req->vwv+2, 0);
920	ioctl_code = (device << 16) + function;
921
922	DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
923
924	switch (ioctl_code) {
925	case IOCTL_QUERY_JOB_INFO:
926	replysize = 32;
927	break;
928	default:
929	reply_force_doserror(req, ERRSRV, ERRnosupport);
930	END_PROFILE(SMBioctl);
931	return;
932	}
933
934	reply_outbuf(req, 8, replysize+1);
935	SSVAL(req->outbuf,smb_vwv1,replysize); /* Total data bytes returned */
936	SSVAL(req->outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
937	SSVAL(req->outbuf,smb_vwv6,52); /* Offset to data */
938	p = smb_buf(req->outbuf);
939	memset(p, '\0', replysize+1); /* valgrind-safe. */
940	p += 1; /* Allow for alignment */
941
942	switch (ioctl_code) {
943	case IOCTL_QUERY_JOB_INFO:
944	{
945	files_struct *fsp = file_fsp(
946	req, SVAL(req->vwv+0, 0));
947	if (!fsp) {
948	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
949	END_PROFILE(SMBioctl);
950	return;
951	}
952	/* Job number */
953	if (fsp->print_file) {
954	SSVAL(p, 0, fsp->print_file->rap_jobid);
955	} else {
956	SSVAL(p, 0, 0);
957	}
958	srvstr_push((char *)req->outbuf, req->flags2, p+2,
959	global_myname(), 15,
960	STR_TERMINATE\|STR_ASCII);
961	if (conn) {
962	srvstr_push((char *)req->outbuf, req->flags2,
963	p+18, lp_servicename(SNUM(conn)),
964	13, STR_TERMINATE\|STR_ASCII);
965	} else {
966	memset(p+18, 0, 13);
967	}
968	break;
969	}
970	}
971
972	END_PROFILE(SMBioctl);
973	return;
974	}
975
976	/****************************************************************************
977	Strange checkpath NTSTATUS mapping.
978	****************************************************************************/
979
980	static NTSTATUS map_checkpath_error(uint16_t flags2, NTSTATUS status)
981	{
982	/* Strange DOS error code semantics only for checkpath... */
983	if (!(flags2 & FLAGS2_32_BIT_ERROR_CODES)) {
984	if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
985	/* We need to map to ERRbadpath */
986	return NT_STATUS_OBJECT_PATH_NOT_FOUND;
987	}
988	}
989	return status;
990	}
991
992	/****************************************************************************
993	Reply to a checkpath.
994	****************************************************************************/
995
996	void reply_checkpath(struct smb_request *req)
997	{
998	connection_struct *conn = req->conn;
999	struct smb_filename *smb_fname = NULL;
1000	char *name = NULL;
1001	NTSTATUS status;
1002	TALLOC_CTX *ctx = talloc_tos();
1003
1004	START_PROFILE(SMBcheckpath);
1005
1006	srvstr_get_path_req(ctx, req, &name, (const char *)req->buf + 1,
1007	STR_TERMINATE, &status);
1008
1009	if (!NT_STATUS_IS_OK(status)) {
1010	status = map_checkpath_error(req->flags2, status);
1011	reply_nterror(req, status);
1012	END_PROFILE(SMBcheckpath);
1013	return;
1014	}
1015
1016	DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->vwv+0, 0)));
1017
1018	status = filename_convert(ctx,
1019	conn,
1020	req->flags2 & FLAGS2_DFS_PATHNAMES,
1021	name,
1022	0,
1023	NULL,
1024	&smb_fname);
1025
1026	if (!NT_STATUS_IS_OK(status)) {
1027	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1028	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1029	ERRSRV, ERRbadpath);
1030	END_PROFILE(SMBcheckpath);
1031	return;
1032	}
1033	goto path_err;
1034	}
1035
1036	if (!VALID_STAT(smb_fname->st) &&
1037	(SMB_VFS_STAT(conn, smb_fname) != 0)) {
1038	DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",
1039	smb_fname_str_dbg(smb_fname), strerror(errno)));
1040	status = map_nt_error_from_unix(errno);
1041	goto path_err;
1042	}
1043
1044	if (!S_ISDIR(smb_fname->st.st_ex_mode)) {
1045	reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
1046	ERRDOS, ERRbadpath);
1047	goto out;
1048	}
1049
1050	reply_outbuf(req, 0, 0);
1051
1052	path_err:
1053	/* We special case this - as when a Windows machine
1054	is parsing a path is steps through the components
1055	one at a time - if a component fails it expects
1056	ERRbadpath, not ERRbadfile.
1057	*/
1058	status = map_checkpath_error(req->flags2, status);
1059	if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
1060	/*
1061	* Windows returns different error codes if
1062	* the parent directory is valid but not the
1063	* last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
1064	* for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
1065	* if the path is invalid.
1066	*/
1067	reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
1068	ERRDOS, ERRbadpath);
1069	goto out;
1070	}
1071
1072	reply_nterror(req, status);
1073
1074	out:
1075	TALLOC_FREE(smb_fname);
1076	END_PROFILE(SMBcheckpath);
1077	return;
1078	}
1079
1080	/****************************************************************************
1081	Reply to a getatr.
1082	****************************************************************************/
1083
1084	void reply_getatr(struct smb_request *req)
1085	{
1086	connection_struct *conn = req->conn;
1087	struct smb_filename *smb_fname = NULL;
1088	char *fname = NULL;
1089	int mode=0;
1090	SMB_OFF_T size=0;
1091	time_t mtime=0;
1092	const char *p;
1093	NTSTATUS status;
1094	TALLOC_CTX *ctx = talloc_tos();
1095	bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1096
1097	START_PROFILE(SMBgetatr);
1098
1099	p = (const char *)req->buf + 1;
1100	p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1101	if (!NT_STATUS_IS_OK(status)) {
1102	reply_nterror(req, status);
1103	goto out;
1104	}
1105
1106	/* dos smetimes asks for a stat of "" - it returns a "hidden directory"
1107	under WfWg - weird! */
1108	if (*fname == '\0') {
1109	mode = FILE_ATTRIBUTE_HIDDEN \| FILE_ATTRIBUTE_DIRECTORY;
1110	if (!CAN_WRITE(conn)) {
1111	mode \|= FILE_ATTRIBUTE_READONLY;
1112	}
1113	size = 0;
1114	mtime = 0;
1115	} else {
1116	status = filename_convert(ctx,
1117	conn,
1118	req->flags2 & FLAGS2_DFS_PATHNAMES,
1119	fname,
1120	0,
1121	NULL,
1122	&smb_fname);
1123	if (!NT_STATUS_IS_OK(status)) {
1124	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1125	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1126	ERRSRV, ERRbadpath);
1127	goto out;
1128	}
1129	reply_nterror(req, status);
1130	goto out;
1131	}
1132	if (!VALID_STAT(smb_fname->st) &&
1133	(SMB_VFS_STAT(conn, smb_fname) != 0)) {
1134	DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",
1135	smb_fname_str_dbg(smb_fname),
1136	strerror(errno)));
1137	reply_nterror(req, map_nt_error_from_unix(errno));
1138	goto out;
1139	}
1140
1141	mode = dos_mode(conn, smb_fname);
1142	size = smb_fname->st.st_ex_size;
1143
1144	if (ask_sharemode) {
1145	struct timespec write_time_ts;
1146	struct file_id fileid;
1147
1148	ZERO_STRUCT(write_time_ts);
1149	fileid = vfs_file_id_from_sbuf(conn, &smb_fname->st);
1150	get_file_infos(fileid, 0, NULL, &write_time_ts);
1151	if (!null_timespec(write_time_ts)) {
1152	update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1153	}
1154	}
1155
1156	mtime = convert_timespec_to_time_t(smb_fname->st.st_ex_mtime);
1157	if (mode & FILE_ATTRIBUTE_DIRECTORY) {
1158	size = 0;
1159	}
1160	}
1161
1162	reply_outbuf(req, 10, 0);
1163
1164	SSVAL(req->outbuf,smb_vwv0,mode);
1165	if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1166	srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
1167	} else {
1168	srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
1169	}
1170	SIVAL(req->outbuf,smb_vwv3,(uint32)size);
1171
1172	if (get_Protocol() >= PROTOCOL_NT1) {
1173	SSVAL(req->outbuf, smb_flg2,
1174	SVAL(req->outbuf, smb_flg2) \| FLAGS2_IS_LONG_NAME);
1175	}
1176
1177	DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n",
1178	smb_fname_str_dbg(smb_fname), mode, (unsigned int)size));
1179
1180	out:
1181	TALLOC_FREE(smb_fname);
1182	TALLOC_FREE(fname);
1183	END_PROFILE(SMBgetatr);
1184	return;
1185	}
1186
1187	/****************************************************************************
1188	Reply to a setatr.
1189	****************************************************************************/
1190
1191	void reply_setatr(struct smb_request *req)
1192	{
1193	struct smb_file_time ft;
1194	connection_struct *conn = req->conn;
1195	struct smb_filename *smb_fname = NULL;
1196	char *fname = NULL;
1197	int mode;
1198	time_t mtime;
1199	const char *p;
1200	NTSTATUS status;
1201	TALLOC_CTX *ctx = talloc_tos();
1202
1203	START_PROFILE(SMBsetatr);
1204
1205	ZERO_STRUCT(ft);
1206
1207	if (req->wct < 2) {
1208	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1209	goto out;
1210	}
1211
1212	p = (const char *)req->buf + 1;
1213	p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1214	if (!NT_STATUS_IS_OK(status)) {
1215	reply_nterror(req, status);
1216	goto out;
1217	}
1218
1219	status = filename_convert(ctx,
1220	conn,
1221	req->flags2 & FLAGS2_DFS_PATHNAMES,
1222	fname,
1223	0,
1224	NULL,
1225	&smb_fname);
1226	if (!NT_STATUS_IS_OK(status)) {
1227	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1228	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1229	ERRSRV, ERRbadpath);
1230	goto out;
1231	}
1232	reply_nterror(req, status);
1233	goto out;
1234	}
1235
1236	if (smb_fname->base_name[0] == '.' &&
1237	smb_fname->base_name[1] == '\0') {
1238	/*
1239	* Not sure here is the right place to catch this
1240	* condition. Might be moved to somewhere else later -- vl
1241	*/
1242	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1243	goto out;
1244	}
1245
1246	mode = SVAL(req->vwv+0, 0);
1247	mtime = srv_make_unix_date3(req->vwv+1);
1248
1249	ft.mtime = convert_time_t_to_timespec(mtime);
1250	status = smb_set_file_time(conn, NULL, smb_fname, &ft, true);
1251	if (!NT_STATUS_IS_OK(status)) {
1252	reply_nterror(req, status);
1253	goto out;
1254	}
1255
1256	if (mode != FILE_ATTRIBUTE_NORMAL) {
1257	if (VALID_STAT_OF_DIR(smb_fname->st))
1258	mode \|= FILE_ATTRIBUTE_DIRECTORY;
1259	else
1260	mode &= ~FILE_ATTRIBUTE_DIRECTORY;
1261
1262	if (file_set_dosmode(conn, smb_fname, mode, NULL,
1263	false) != 0) {
1264	reply_nterror(req, map_nt_error_from_unix(errno));
1265	goto out;
1266	}
1267	}
1268
1269	reply_outbuf(req, 0, 0);
1270
1271	DEBUG(3, ("setatr name=%s mode=%d\n", smb_fname_str_dbg(smb_fname),
1272	mode));
1273	out:
1274	TALLOC_FREE(smb_fname);
1275	END_PROFILE(SMBsetatr);
1276	return;
1277	}
1278
1279	/****************************************************************************
1280	Reply to a dskattr.
1281	****************************************************************************/
1282
1283	void reply_dskattr(struct smb_request *req)
1284	{
1285	connection_struct *conn = req->conn;
1286	uint64_t dfree,dsize,bsize;
1287	START_PROFILE(SMBdskattr);
1288
1289	if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (uint64_t)-1) {
1290	reply_nterror(req, map_nt_error_from_unix(errno));
1291	END_PROFILE(SMBdskattr);
1292	return;
1293	}
1294
1295	reply_outbuf(req, 5, 0);
1296
1297	if (get_Protocol() <= PROTOCOL_LANMAN2) {
1298	double total_space, free_space;
1299	/* we need to scale this to a number that DOS6 can handle. We
1300	use floating point so we can handle large drives on systems
1301	that don't have 64 bit integers
1302
1303	we end up displaying a maximum of 2G to DOS systems
1304	*/
1305	total_space = dsize * (double)bsize;
1306	free_space = dfree * (double)bsize;
1307
1308	dsize = (uint64_t)((total_space+63512) / (64512));
1309	dfree = (uint64_t)((free_space+63512) / (64512));
1310
1311	if (dsize > 0xFFFF) dsize = 0xFFFF;
1312	if (dfree > 0xFFFF) dfree = 0xFFFF;
1313
1314	SSVAL(req->outbuf,smb_vwv0,dsize);
1315	SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1316	SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1317	SSVAL(req->outbuf,smb_vwv3,dfree);
1318	} else {
1319	SSVAL(req->outbuf,smb_vwv0,dsize);
1320	SSVAL(req->outbuf,smb_vwv1,bsize/512);
1321	SSVAL(req->outbuf,smb_vwv2,512);
1322	SSVAL(req->outbuf,smb_vwv3,dfree);
1323	}
1324
1325	DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1326
1327	END_PROFILE(SMBdskattr);
1328	return;
1329	}
1330
1331	/*
1332	* Utility function to split the filename from the directory.
1333	*/
1334	static NTSTATUS split_fname_dir_mask(TALLOC_CTX ctx, const char fname_in,
1335	char **fname_dir_out,
1336	char **fname_mask_out)
1337	{
1338	const char *p = NULL;
1339	char *fname_dir = NULL;
1340	char *fname_mask = NULL;
1341
1342	p = strrchr_m(fname_in, '/');
1343	if (!p) {
1344	fname_dir = talloc_strdup(ctx, ".");
1345	fname_mask = talloc_strdup(ctx, fname_in);
1346	} else {
1347	fname_dir = talloc_strndup(ctx, fname_in,
1348	PTR_DIFF(p, fname_in));
1349	fname_mask = talloc_strdup(ctx, p+1);
1350	}
1351
1352	if (!fname_dir \|\| !fname_mask) {
1353	TALLOC_FREE(fname_dir);
1354	TALLOC_FREE(fname_mask);
1355	return NT_STATUS_NO_MEMORY;
1356	}
1357
1358	*fname_dir_out = fname_dir;
1359	*fname_mask_out = fname_mask;
1360	return NT_STATUS_OK;
1361	}
1362
1363	/****************************************************************************
1364	Reply to a search.
1365	Can be called from SMBsearch, SMBffirst or SMBfunique.
1366	****************************************************************************/
1367
1368	void reply_search(struct smb_request *req)
1369	{
1370	connection_struct *conn = req->conn;
1371	char *path = NULL;
1372	const char *mask = NULL;
1373	char *directory = NULL;
1374	struct smb_filename *smb_fname = NULL;
1375	char *fname = NULL;
1376	SMB_OFF_T size;
1377	uint32 mode;
1378	struct timespec date;
1379	uint32 dirtype;
1380	unsigned int numentries = 0;
1381	unsigned int maxentries = 0;
1382	bool finished = False;
1383	const char *p;
1384	int status_len;
1385	char status[21];
1386	int dptr_num= -1;
1387	bool check_descend = False;
1388	bool expect_close = False;
1389	NTSTATUS nt_status;
1390	bool mask_contains_wcard = False;
1391	bool allow_long_path_components = (req->flags2 & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1392	TALLOC_CTX *ctx = talloc_tos();
1393	bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1394	struct dptr_struct *dirptr = NULL;
1395	struct smbd_server_connection *sconn = req->sconn;
1396
1397	START_PROFILE(SMBsearch);
1398
1399	if (req->wct < 2) {
1400	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1401	goto out;
1402	}
1403
1404	if (lp_posix_pathnames()) {
1405	reply_unknown_new(req, req->cmd);
1406	goto out;
1407	}
1408
1409	/* If we were called as SMBffirst then we must expect close. */
1410	if(req->cmd == SMBffirst) {
1411	expect_close = True;
1412	}
1413
1414	reply_outbuf(req, 1, 3);
1415	maxentries = SVAL(req->vwv+0, 0);
1416	dirtype = SVAL(req->vwv+1, 0);
1417	p = (const char *)req->buf + 1;
1418	p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1419	&nt_status, &mask_contains_wcard);
1420	if (!NT_STATUS_IS_OK(nt_status)) {
1421	reply_nterror(req, nt_status);
1422	goto out;
1423	}
1424
1425	p++;
1426	status_len = SVAL(p, 0);
1427	p += 2;
1428
1429	/* dirtype &= ~FILE_ATTRIBUTE_DIRECTORY; */
1430
1431	if (status_len == 0) {
1432	nt_status = filename_convert(ctx, conn,
1433	req->flags2 & FLAGS2_DFS_PATHNAMES,
1434	path,
1435	UCF_ALWAYS_ALLOW_WCARD_LCOMP,
1436	&mask_contains_wcard,
1437	&smb_fname);
1438	if (!NT_STATUS_IS_OK(nt_status)) {
1439	if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1440	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1441	ERRSRV, ERRbadpath);
1442	goto out;
1443	}
1444	reply_nterror(req, nt_status);
1445	goto out;
1446	}
1447
1448	directory = smb_fname->base_name;
1449
1450	p = strrchr_m(directory,'/');
1451	if ((p != NULL) && (*directory != '/')) {
1452	mask = p + 1;
1453	directory = talloc_strndup(ctx, directory,
1454	PTR_DIFF(p, directory));
1455	} else {
1456	mask = directory;
1457	directory = talloc_strdup(ctx,".");
1458	}
1459
1460	if (!directory) {
1461	reply_nterror(req, NT_STATUS_NO_MEMORY);
1462	goto out;
1463	}
1464
1465	memset((char *)status,'\0',21);
1466	SCVAL(status,0,(dirtype & 0x1F));
1467
1468	nt_status = dptr_create(conn,
1469	NULL, /* fsp */
1470	directory,
1471	True,
1472	expect_close,
1473	req->smbpid,
1474	mask,
1475	mask_contains_wcard,
1476	dirtype,
1477	&dirptr);
1478	if (!NT_STATUS_IS_OK(nt_status)) {
1479	reply_nterror(req, nt_status);
1480	goto out;
1481	}
1482	dptr_num = dptr_dnum(dirptr);
1483	} else {
1484	int status_dirtype;
1485	const char *dirpath;
1486
1487	memcpy(status,p,21);
1488	status_dirtype = CVAL(status,0) & 0x1F;
1489	if (status_dirtype != (dirtype & 0x1F)) {
1490	dirtype = status_dirtype;
1491	}
1492
1493	dirptr = dptr_fetch(sconn, status+12,&dptr_num);
1494	if (!dirptr) {
1495	goto SearchEmpty;
1496	}
1497	dirpath = dptr_path(sconn, dptr_num);
1498	directory = talloc_strdup(ctx, dirpath);
1499	if (!directory) {
1500	reply_nterror(req, NT_STATUS_NO_MEMORY);
1501	goto out;
1502	}
1503
1504	mask = dptr_wcard(sconn, dptr_num);
1505	if (!mask) {
1506	goto SearchEmpty;
1507	}
1508	/*
1509	* For a 'continue' search we have no string. So
1510	* check from the initial saved string.
1511	*/
1512	mask_contains_wcard = ms_has_wild(mask);
1513	dirtype = dptr_attr(sconn, dptr_num);
1514	}
1515
1516	DEBUG(4,("dptr_num is %d\n",dptr_num));
1517
1518	/* Initialize per SMBsearch/SMBffirst/SMBfunique operation data */
1519	dptr_init_search_op(dirptr);
1520
1521	if ((dirtype&0x1F) == FILE_ATTRIBUTE_VOLUME) {
1522	char buf[DIR_STRUCT_SIZE];
1523	memcpy(buf,status,21);
1524	if (!make_dir_struct(ctx,buf,"???????????",volume_label(SNUM(conn)),
1525	0,FILE_ATTRIBUTE_VOLUME,0,!allow_long_path_components)) {
1526	reply_nterror(req, NT_STATUS_NO_MEMORY);
1527	goto out;
1528	}
1529	dptr_fill(sconn, buf+12,dptr_num);
1530	if (dptr_zero(buf+12) && (status_len==0)) {
1531	numentries = 1;
1532	} else {
1533	numentries = 0;
1534	}
1535	if (message_push_blob(&req->outbuf,
1536	data_blob_const(buf, sizeof(buf)))
1537	== -1) {
1538	reply_nterror(req, NT_STATUS_NO_MEMORY);
1539	goto out;
1540	}
1541	} else {
1542	unsigned int i;
1543	maxentries = MIN(
1544	maxentries,
1545	((BUFFER_SIZE -
1546	((uint8 *)smb_buf(req->outbuf) + 3 - req->outbuf))
1547	/DIR_STRUCT_SIZE));
1548
1549	DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1550	directory,lp_dontdescend(SNUM(conn))));
1551	if (in_list(directory, lp_dontdescend(SNUM(conn)),True)) {
1552	check_descend = True;
1553	}
1554
1555	for (i=numentries;(i<maxentries) && !finished;i++) {
1556	finished = !get_dir_entry(ctx,
1557	dirptr,
1558	mask,
1559	dirtype,
1560	&fname,
1561	&size,
1562	&mode,
1563	&date,
1564	check_descend,
1565	ask_sharemode);
1566	if (!finished) {
1567	char buf[DIR_STRUCT_SIZE];
1568	memcpy(buf,status,21);
1569	if (!make_dir_struct(ctx,
1570	buf,
1571	mask,
1572	fname,
1573	size,
1574	mode,
1575	convert_timespec_to_time_t(date),
1576	!allow_long_path_components)) {
1577	reply_nterror(req, NT_STATUS_NO_MEMORY);
1578	goto out;
1579	}
1580	if (!dptr_fill(sconn, buf+12,dptr_num)) {
1581	break;
1582	}
1583	if (message_push_blob(&req->outbuf,
1584	data_blob_const(buf, sizeof(buf)))
1585	== -1) {
1586	reply_nterror(req, NT_STATUS_NO_MEMORY);
1587	goto out;
1588	}
1589	numentries++;
1590	}
1591	}
1592	}
1593
1594	SearchEmpty:
1595
1596	/* If we were called as SMBffirst with smb_search_id == NULL
1597	and no entries were found then return error and close dirptr
1598	(X/Open spec) */
1599
1600	if (numentries == 0) {
1601	dptr_close(sconn, &dptr_num);
1602	} else if(expect_close && status_len == 0) {
1603	/* Close the dptr - we know it's gone */
1604	dptr_close(sconn, &dptr_num);
1605	}
1606
1607	/* If we were called as SMBfunique, then we can close the dirptr now ! */
1608	if(dptr_num >= 0 && req->cmd == SMBfunique) {
1609	dptr_close(sconn, &dptr_num);
1610	}
1611
1612	if ((numentries == 0) && !mask_contains_wcard) {
1613	reply_botherror(req, STATUS_NO_MORE_FILES, ERRDOS, ERRnofiles);
1614	goto out;
1615	}
1616
1617	SSVAL(req->outbuf,smb_vwv0,numentries);
1618	SSVAL(req->outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1619	SCVAL(smb_buf(req->outbuf),0,5);
1620	SSVAL(smb_buf(req->outbuf),1,numentries*DIR_STRUCT_SIZE);
1621
1622	/* The replies here are never long name. */
1623	SSVAL(req->outbuf, smb_flg2,
1624	SVAL(req->outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1625	if (!allow_long_path_components) {
1626	SSVAL(req->outbuf, smb_flg2,
1627	SVAL(req->outbuf, smb_flg2)
1628	& (~FLAGS2_LONG_PATH_COMPONENTS));
1629	}
1630
1631	/* This SMB always returns ASCII names. Remove the unicode bit in flags2. */
1632	SSVAL(req->outbuf, smb_flg2,
1633	(SVAL(req->outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1634
1635	DEBUG(4,("%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1636	smb_fn_name(req->cmd),
1637	mask,
1638	directory,
1639	dirtype,
1640	numentries,
1641	maxentries ));
1642	out:
1643	TALLOC_FREE(directory);
1644	TALLOC_FREE(smb_fname);
1645	END_PROFILE(SMBsearch);
1646	return;
1647	}
1648
1649	/****************************************************************************
1650	Reply to a fclose (stop directory search).
1651	****************************************************************************/
1652
1653	void reply_fclose(struct smb_request *req)
1654	{
1655	int status_len;
1656	char status[21];
1657	int dptr_num= -2;
1658	const char *p;
1659	char *path = NULL;
1660	NTSTATUS err;
1661	bool path_contains_wcard = False;
1662	TALLOC_CTX *ctx = talloc_tos();
1663	struct smbd_server_connection *sconn = req->sconn;
1664
1665	START_PROFILE(SMBfclose);
1666
1667	if (lp_posix_pathnames()) {
1668	reply_unknown_new(req, req->cmd);
1669	END_PROFILE(SMBfclose);
1670	return;
1671	}
1672
1673	p = (const char *)req->buf + 1;
1674	p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1675	&err, &path_contains_wcard);
1676	if (!NT_STATUS_IS_OK(err)) {
1677	reply_nterror(req, err);
1678	END_PROFILE(SMBfclose);
1679	return;
1680	}
1681	p++;
1682	status_len = SVAL(p,0);
1683	p += 2;
1684
1685	if (status_len == 0) {
1686	reply_force_doserror(req, ERRSRV, ERRsrverror);
1687	END_PROFILE(SMBfclose);
1688	return;
1689	}
1690
1691	memcpy(status,p,21);
1692
1693	if(dptr_fetch(sconn, status+12,&dptr_num)) {
1694	/* Close the dptr - we know it's gone */
1695	dptr_close(sconn, &dptr_num);
1696	}
1697
1698	reply_outbuf(req, 1, 0);
1699	SSVAL(req->outbuf,smb_vwv0,0);
1700
1701	DEBUG(3,("search close\n"));
1702
1703	END_PROFILE(SMBfclose);
1704	return;
1705	}
1706
1707	/****************************************************************************
1708	Reply to an open.
1709	****************************************************************************/
1710
1711	void reply_open(struct smb_request *req)
1712	{
1713	connection_struct *conn = req->conn;
1714	struct smb_filename *smb_fname = NULL;
1715	char *fname = NULL;
1716	uint32 fattr=0;
1717	SMB_OFF_T size = 0;
1718	time_t mtime=0;
1719	int info;
1720	files_struct *fsp;
1721	int oplock_request;
1722	int deny_mode;
1723	uint32 dos_attr;
1724	uint32 access_mask;
1725	uint32 share_mode;
1726	uint32 create_disposition;
1727	uint32 create_options = 0;
1728	uint32_t private_flags = 0;
1729	NTSTATUS status;
1730	bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1731	TALLOC_CTX *ctx = talloc_tos();
1732
1733	START_PROFILE(SMBopen);
1734
1735	if (req->wct < 2) {
1736	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1737	goto out;
1738	}
1739
1740	oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1741	deny_mode = SVAL(req->vwv+0, 0);
1742	dos_attr = SVAL(req->vwv+1, 0);
1743
1744	srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
1745	STR_TERMINATE, &status);
1746	if (!NT_STATUS_IS_OK(status)) {
1747	reply_nterror(req, status);
1748	goto out;
1749	}
1750
1751	status = filename_convert(ctx,
1752	conn,
1753	req->flags2 & FLAGS2_DFS_PATHNAMES,
1754	fname,
1755	0,
1756	NULL,
1757	&smb_fname);
1758	if (!NT_STATUS_IS_OK(status)) {
1759	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1760	reply_botherror(req,
1761	NT_STATUS_PATH_NOT_COVERED,
1762	ERRSRV, ERRbadpath);
1763	goto out;
1764	}
1765	reply_nterror(req, status);
1766	goto out;
1767	}
1768
1769	if (!map_open_params_to_ntcreate(smb_fname, deny_mode,
1770	OPENX_FILE_EXISTS_OPEN, &access_mask,
1771	&share_mode, &create_disposition,
1772	&create_options, &private_flags)) {
1773	reply_force_doserror(req, ERRDOS, ERRbadaccess);
1774	goto out;
1775	}
1776
1777	status = SMB_VFS_CREATE_FILE(
1778	conn, /* conn */
1779	req, /* req */
1780	0, /* root_dir_fid */
1781	smb_fname, /* fname */
1782	access_mask, /* access_mask */
1783	share_mode, /* share_access */
1784	create_disposition, /* create_disposition*/
1785	create_options, /* create_options */
1786	dos_attr, /* file_attributes */
1787	oplock_request, /* oplock_request */
1788	0, /* allocation_size */
1789	private_flags,
1790	NULL, /* sd */
1791	NULL, /* ea_list */
1792	&fsp, /* result */
1793	&info); /* pinfo */
1794
1795	if (!NT_STATUS_IS_OK(status)) {
1796	if (open_was_deferred(req->mid)) {
1797	/* We have re-scheduled this call. */
1798	goto out;
1799	}
1800	reply_openerror(req, status);
1801	goto out;
1802	}
1803
1804	size = smb_fname->st.st_ex_size;
1805	fattr = dos_mode(conn, smb_fname);
1806
1807	/* Deal with other possible opens having a modified
1808	write time. JRA. */
1809	if (ask_sharemode) {
1810	struct timespec write_time_ts;
1811
1812	ZERO_STRUCT(write_time_ts);
1813	get_file_infos(fsp->file_id, 0, NULL, &write_time_ts);
1814	if (!null_timespec(write_time_ts)) {
1815	update_stat_ex_mtime(&smb_fname->st, write_time_ts);
1816	}
1817	}
1818
1819	mtime = convert_timespec_to_time_t(smb_fname->st.st_ex_mtime);
1820
1821	if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
1822	DEBUG(3,("attempt to open a directory %s\n",
1823	fsp_str_dbg(fsp)));
1824	close_file(req, fsp, ERROR_CLOSE);
1825	reply_botherror(req, NT_STATUS_ACCESS_DENIED,
1826	ERRDOS, ERRnoaccess);
1827	goto out;
1828	}
1829
1830	reply_outbuf(req, 7, 0);
1831	SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1832	SSVAL(req->outbuf,smb_vwv1,fattr);
1833	if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1834	srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1835	} else {
1836	srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1837	}
1838	SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1839	SSVAL(req->outbuf,smb_vwv6,deny_mode);
1840
1841	if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1842	SCVAL(req->outbuf,smb_flg,
1843	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
1844	}
1845
1846	if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1847	SCVAL(req->outbuf,smb_flg,
1848	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
1849	}
1850	out:
1851	TALLOC_FREE(smb_fname);
1852	END_PROFILE(SMBopen);
1853	return;
1854	}
1855
1856	/****************************************************************************
1857	Reply to an open and X.
1858	****************************************************************************/
1859
1860	void reply_open_and_X(struct smb_request *req)
1861	{
1862	connection_struct *conn = req->conn;
1863	struct smb_filename *smb_fname = NULL;
1864	char *fname = NULL;
1865	uint16 open_flags;
1866	int deny_mode;
1867	uint32 smb_attr;
1868	/* Breakout the oplock request bits so we can set the
1869	reply bits separately. */
1870	int ex_oplock_request;
1871	int core_oplock_request;
1872	int oplock_request;
1873	#if 0
1874	int smb_sattr = SVAL(req->vwv+4, 0);
1875	uint32 smb_time = make_unix_date3(req->vwv+6);
1876	#endif
1877	int smb_ofun;
1878	uint32 fattr=0;
1879	int mtime=0;
1880	int smb_action = 0;
1881	files_struct *fsp;
1882	NTSTATUS status;
1883	uint64_t allocation_size;
1884	ssize_t retval = -1;
1885	uint32 access_mask;
1886	uint32 share_mode;
1887	uint32 create_disposition;
1888	uint32 create_options = 0;
1889	uint32_t private_flags = 0;
1890	TALLOC_CTX *ctx = talloc_tos();
1891
1892	START_PROFILE(SMBopenX);
1893
1894	if (req->wct < 15) {
1895	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1896	goto out;
1897	}
1898
1899	open_flags = SVAL(req->vwv+2, 0);
1900	deny_mode = SVAL(req->vwv+3, 0);
1901	smb_attr = SVAL(req->vwv+5, 0);
1902	ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
1903	core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1904	oplock_request = ex_oplock_request \| core_oplock_request;
1905	smb_ofun = SVAL(req->vwv+8, 0);
1906	allocation_size = (uint64_t)IVAL(req->vwv+9, 0);
1907
1908	/* If it's an IPC, pass off the pipe handler. */
1909	if (IS_IPC(conn)) {
1910	if (lp_nt_pipe_support()) {
1911	reply_open_pipe_and_X(conn, req);
1912	} else {
1913	reply_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
1914	}
1915	goto out;
1916	}
1917
1918	/* XXXX we need to handle passed times, sattr and flags */
1919	srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
1920	STR_TERMINATE, &status);
1921	if (!NT_STATUS_IS_OK(status)) {
1922	reply_nterror(req, status);
1923	goto out;
1924	}
1925
1926	status = filename_convert(ctx,
1927	conn,
1928	req->flags2 & FLAGS2_DFS_PATHNAMES,
1929	fname,
1930	0,
1931	NULL,
1932	&smb_fname);
1933	if (!NT_STATUS_IS_OK(status)) {
1934	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1935	reply_botherror(req,
1936	NT_STATUS_PATH_NOT_COVERED,
1937	ERRSRV, ERRbadpath);
1938	goto out;
1939	}
1940	reply_nterror(req, status);
1941	goto out;
1942	}
1943
1944	if (!map_open_params_to_ntcreate(smb_fname, deny_mode, smb_ofun,
1945	&access_mask, &share_mode,
1946	&create_disposition,
1947	&create_options,
1948	&private_flags)) {
1949	reply_force_doserror(req, ERRDOS, ERRbadaccess);
1950	goto out;
1951	}
1952
1953	status = SMB_VFS_CREATE_FILE(
1954	conn, /* conn */
1955	req, /* req */
1956	0, /* root_dir_fid */
1957	smb_fname, /* fname */
1958	access_mask, /* access_mask */
1959	share_mode, /* share_access */
1960	create_disposition, /* create_disposition*/
1961	create_options, /* create_options */
1962	smb_attr, /* file_attributes */
1963	oplock_request, /* oplock_request */
1964	0, /* allocation_size */
1965	private_flags,
1966	NULL, /* sd */
1967	NULL, /* ea_list */
1968	&fsp, /* result */
1969	&smb_action); /* pinfo */
1970
1971	if (!NT_STATUS_IS_OK(status)) {
1972	if (open_was_deferred(req->mid)) {
1973	/* We have re-scheduled this call. */
1974	goto out;
1975	}
1976	reply_openerror(req, status);
1977	goto out;
1978	}
1979
1980	/* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1981	if the file is truncated or created. */
1982	if (((smb_action == FILE_WAS_CREATED) \|\| (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1983	fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1984	if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1985	close_file(req, fsp, ERROR_CLOSE);
1986	reply_nterror(req, NT_STATUS_DISK_FULL);
1987	goto out;
1988	}
1989	retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1990	if (retval < 0) {
1991	close_file(req, fsp, ERROR_CLOSE);
1992	reply_nterror(req, NT_STATUS_DISK_FULL);
1993	goto out;
1994	}
1995	status = vfs_stat_fsp(fsp);
1996	if (!NT_STATUS_IS_OK(status)) {
1997	close_file(req, fsp, ERROR_CLOSE);
1998	reply_nterror(req, status);
1999	goto out;
2000	}
2001	}
2002
2003	fattr = dos_mode(conn, fsp->fsp_name);
2004	mtime = convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_mtime);
2005	if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2006	close_file(req, fsp, ERROR_CLOSE);
2007	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
2008	goto out;
2009	}
2010
2011	/* If the caller set the extended oplock request bit
2012	and we granted one (by whatever means) - set the
2013	correct bit for extended oplock reply.
2014	*/
2015
2016	if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
2017	smb_action \|= EXTENDED_OPLOCK_GRANTED;
2018	}
2019
2020	if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2021	smb_action \|= EXTENDED_OPLOCK_GRANTED;
2022	}
2023
2024	/* If the caller set the core oplock request bit
2025	and we granted one (by whatever means) - set the
2026	correct bit for core oplock reply.
2027	*/
2028
2029	if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
2030	reply_outbuf(req, 19, 0);
2031	} else {
2032	reply_outbuf(req, 15, 0);
2033	}
2034
2035	if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
2036	SCVAL(req->outbuf, smb_flg,
2037	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2038	}
2039
2040	if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2041	SCVAL(req->outbuf, smb_flg,
2042	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2043	}
2044
2045	SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
2046	SSVAL(req->outbuf,smb_vwv3,fattr);
2047	if(lp_dos_filetime_resolution(SNUM(conn)) ) {
2048	srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
2049	} else {
2050	srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
2051	}
2052	SIVAL(req->outbuf,smb_vwv6,(uint32)fsp->fsp_name->st.st_ex_size);
2053	SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
2054	SSVAL(req->outbuf,smb_vwv11,smb_action);
2055
2056	if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
2057	SIVAL(req->outbuf, smb_vwv15, SEC_STD_ALL);
2058	}
2059
2060	chain_reply(req);
2061	out:
2062	TALLOC_FREE(smb_fname);
2063	END_PROFILE(SMBopenX);
2064	return;
2065	}
2066
2067	/****************************************************************************
2068	Reply to a SMBulogoffX.
2069	****************************************************************************/
2070
2071	void reply_ulogoffX(struct smb_request *req)
2072	{
2073	struct smbd_server_connection *sconn = req->sconn;
2074	user_struct *vuser;
2075
2076	START_PROFILE(SMBulogoffX);
2077
2078	vuser = get_valid_user_struct(sconn, req->vuid);
2079
2080	if(vuser == NULL) {
2081	DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
2082	req->vuid));
2083	}
2084
2085	/* in user level security we are supposed to close any files
2086	open by this user */
2087	if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
2088	file_close_user(sconn, req->vuid);
2089	}
2090
2091	invalidate_vuid(sconn, req->vuid);
2092
2093	reply_outbuf(req, 2, 0);
2094
2095	DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
2096
2097	END_PROFILE(SMBulogoffX);
2098	req->vuid = UID_FIELD_INVALID;
2099	chain_reply(req);
2100	}
2101
2102	/****************************************************************************
2103	Reply to a mknew or a create.
2104	****************************************************************************/
2105
2106	void reply_mknew(struct smb_request *req)
2107	{
2108	connection_struct *conn = req->conn;
2109	struct smb_filename *smb_fname = NULL;
2110	char *fname = NULL;
2111	uint32 fattr = 0;
2112	struct smb_file_time ft;
2113	files_struct *fsp;
2114	int oplock_request = 0;
2115	NTSTATUS status;
2116	uint32 access_mask = FILE_GENERIC_READ \| FILE_GENERIC_WRITE;
2117	uint32 share_mode = FILE_SHARE_READ\|FILE_SHARE_WRITE;
2118	uint32 create_disposition;
2119	uint32 create_options = 0;
2120	TALLOC_CTX *ctx = talloc_tos();
2121
2122	START_PROFILE(SMBcreate);
2123	ZERO_STRUCT(ft);
2124
2125	if (req->wct < 3) {
2126	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2127	goto out;
2128	}
2129
2130	fattr = SVAL(req->vwv+0, 0);
2131	oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2132
2133	/* mtime. */
2134	ft.mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+1));
2135
2136	srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf + 1,
2137	STR_TERMINATE, &status);
2138	if (!NT_STATUS_IS_OK(status)) {
2139	reply_nterror(req, status);
2140	goto out;
2141	}
2142
2143	status = filename_convert(ctx,
2144	conn,
2145	req->flags2 & FLAGS2_DFS_PATHNAMES,
2146	fname,
2147	0,
2148	NULL,
2149	&smb_fname);
2150	if (!NT_STATUS_IS_OK(status)) {
2151	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2152	reply_botherror(req,
2153	NT_STATUS_PATH_NOT_COVERED,
2154	ERRSRV, ERRbadpath);
2155	goto out;
2156	}
2157	reply_nterror(req, status);
2158	goto out;
2159	}
2160
2161	if (fattr & FILE_ATTRIBUTE_VOLUME) {
2162	DEBUG(0,("Attempt to create file (%s) with volid set - "
2163	"please report this\n",
2164	smb_fname_str_dbg(smb_fname)));
2165	}
2166
2167	if(req->cmd == SMBmknew) {
2168	/* We should fail if file exists. */
2169	create_disposition = FILE_CREATE;
2170	} else {
2171	/* Create if file doesn't exist, truncate if it does. */
2172	create_disposition = FILE_OVERWRITE_IF;
2173	}
2174
2175	status = SMB_VFS_CREATE_FILE(
2176	conn, /* conn */
2177	req, /* req */
2178	0, /* root_dir_fid */
2179	smb_fname, /* fname */
2180	access_mask, /* access_mask */
2181	share_mode, /* share_access */
2182	create_disposition, /* create_disposition*/
2183	create_options, /* create_options */
2184	fattr, /* file_attributes */
2185	oplock_request, /* oplock_request */
2186	0, /* allocation_size */
2187	0, /* private_flags */
2188	NULL, /* sd */
2189	NULL, /* ea_list */
2190	&fsp, /* result */
2191	NULL); /* pinfo */
2192
2193	if (!NT_STATUS_IS_OK(status)) {
2194	if (open_was_deferred(req->mid)) {
2195	/* We have re-scheduled this call. */
2196	goto out;
2197	}
2198	reply_openerror(req, status);
2199	goto out;
2200	}
2201
2202	ft.atime = smb_fname->st.st_ex_atime; /* atime. */
2203	status = smb_set_file_time(conn, fsp, smb_fname, &ft, true);
2204	if (!NT_STATUS_IS_OK(status)) {
2205	END_PROFILE(SMBcreate);
2206	goto out;
2207	}
2208
2209	reply_outbuf(req, 1, 0);
2210	SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2211
2212	if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2213	SCVAL(req->outbuf,smb_flg,
2214	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2215	}
2216
2217	if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2218	SCVAL(req->outbuf,smb_flg,
2219	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2220	}
2221
2222	DEBUG(2, ("reply_mknew: file %s\n", smb_fname_str_dbg(smb_fname)));
2223	DEBUG(3, ("reply_mknew %s fd=%d dmode=0x%x\n",
2224	smb_fname_str_dbg(smb_fname), fsp->fh->fd,
2225	(unsigned int)fattr));
2226
2227	out:
2228	TALLOC_FREE(smb_fname);
2229	END_PROFILE(SMBcreate);
2230	return;
2231	}
2232
2233	/****************************************************************************
2234	Reply to a create temporary file.
2235	****************************************************************************/
2236
2237	void reply_ctemp(struct smb_request *req)
2238	{
2239	connection_struct *conn = req->conn;
2240	struct smb_filename *smb_fname = NULL;
2241	char *fname = NULL;
2242	uint32 fattr;
2243	files_struct *fsp;
2244	int oplock_request;
2245	int tmpfd;
2246	char *s;
2247	NTSTATUS status;
2248	TALLOC_CTX *ctx = talloc_tos();
2249
2250	START_PROFILE(SMBctemp);
2251
2252	if (req->wct < 3) {
2253	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2254	goto out;
2255	}
2256
2257	fattr = SVAL(req->vwv+0, 0);
2258	oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2259
2260	srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
2261	STR_TERMINATE, &status);
2262	if (!NT_STATUS_IS_OK(status)) {
2263	reply_nterror(req, status);
2264	goto out;
2265	}
2266	if (*fname) {
2267	fname = talloc_asprintf(ctx,
2268	"%s/TMXXXXXX",
2269	fname);
2270	} else {
2271	fname = talloc_strdup(ctx, "TMXXXXXX");
2272	}
2273
2274	if (!fname) {
2275	reply_nterror(req, NT_STATUS_NO_MEMORY);
2276	goto out;
2277	}
2278
2279	status = filename_convert(ctx, conn,
2280	req->flags2 & FLAGS2_DFS_PATHNAMES,
2281	fname,
2282	0,
2283	NULL,
2284	&smb_fname);
2285	if (!NT_STATUS_IS_OK(status)) {
2286	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2287	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2288	ERRSRV, ERRbadpath);
2289	goto out;
2290	}
2291	reply_nterror(req, status);
2292	goto out;
2293	}
2294
2295	tmpfd = mkstemp(smb_fname->base_name);
2296	if (tmpfd == -1) {
2297	reply_nterror(req, map_nt_error_from_unix(errno));
2298	goto out;
2299	}
2300
2301	SMB_VFS_STAT(conn, smb_fname);
2302
2303	/* We should fail if file does not exist. */
2304	status = SMB_VFS_CREATE_FILE(
2305	conn, /* conn */
2306	req, /* req */
2307	0, /* root_dir_fid */
2308	smb_fname, /* fname */
2309	FILE_GENERIC_READ \| FILE_GENERIC_WRITE, /* access_mask */
2310	FILE_SHARE_READ \| FILE_SHARE_WRITE, /* share_access */
2311	FILE_OPEN, /* create_disposition*/
2312	0, /* create_options */
2313	fattr, /* file_attributes */
2314	oplock_request, /* oplock_request */
2315	0, /* allocation_size */
2316	0, /* private_flags */
2317	NULL, /* sd */
2318	NULL, /* ea_list */
2319	&fsp, /* result */
2320	NULL); /* pinfo */
2321
2322	/* close fd from mkstemp() */
2323	close(tmpfd);
2324
2325	if (!NT_STATUS_IS_OK(status)) {
2326	if (open_was_deferred(req->mid)) {
2327	/* We have re-scheduled this call. */
2328	goto out;
2329	}
2330	reply_openerror(req, status);
2331	goto out;
2332	}
2333
2334	reply_outbuf(req, 1, 0);
2335	SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2336
2337	/* the returned filename is relative to the directory */
2338	s = strrchr_m(fsp->fsp_name->base_name, '/');
2339	if (!s) {
2340	s = fsp->fsp_name->base_name;
2341	} else {
2342	s++;
2343	}
2344
2345	#if 0
2346	/* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2347	thing in the byte section. JRA */
2348	SSVALS(p, 0, -1); /* what is this? not in spec */
2349	#endif
2350	if (message_push_string(&req->outbuf, s, STR_ASCII\|STR_TERMINATE)
2351	== -1) {
2352	reply_nterror(req, NT_STATUS_NO_MEMORY);
2353	goto out;
2354	}
2355
2356	if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2357	SCVAL(req->outbuf, smb_flg,
2358	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2359	}
2360
2361	if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2362	SCVAL(req->outbuf, smb_flg,
2363	CVAL(req->outbuf,smb_flg)\|CORE_OPLOCK_GRANTED);
2364	}
2365
2366	DEBUG(2, ("reply_ctemp: created temp file %s\n", fsp_str_dbg(fsp)));
2367	DEBUG(3, ("reply_ctemp %s fd=%d umode=0%o\n", fsp_str_dbg(fsp),
2368	fsp->fh->fd, (unsigned int)smb_fname->st.st_ex_mode));
2369	out:
2370	TALLOC_FREE(smb_fname);
2371	END_PROFILE(SMBctemp);
2372	return;
2373	}
2374
2375	/*******************************************************************
2376	Check if a user is allowed to rename a file.
2377	********************************************************************/
2378
2379	static NTSTATUS can_rename(connection_struct conn, files_struct fsp,
2380	uint16 dirtype)
2381	{
2382	if (!CAN_WRITE(conn)) {
2383	return NT_STATUS_MEDIA_WRITE_PROTECTED;
2384	}
2385
2386	if ((dirtype & (FILE_ATTRIBUTE_HIDDEN \| FILE_ATTRIBUTE_SYSTEM)) !=
2387	(FILE_ATTRIBUTE_HIDDEN \| FILE_ATTRIBUTE_SYSTEM)) {
2388	/* Only bother to read the DOS attribute if we might deny the
2389	rename on the grounds of attribute missmatch. */
2390	uint32_t fmode = dos_mode(conn, fsp->fsp_name);
2391	if ((fmode & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN \| FILE_ATTRIBUTE_SYSTEM)) {
2392	return NT_STATUS_NO_SUCH_FILE;
2393	}
2394	}
2395
2396	if (S_ISDIR(fsp->fsp_name->st.st_ex_mode)) {
2397	if (fsp->posix_open) {
2398	return NT_STATUS_OK;
2399	}
2400
2401	/* If no pathnames are open below this
2402	directory, allow the rename. */
2403
2404	if (file_find_subpath(fsp)) {
2405	return NT_STATUS_ACCESS_DENIED;
2406	}
2407	return NT_STATUS_OK;
2408	}
2409
2410	if (fsp->access_mask & (DELETE_ACCESS\|FILE_WRITE_ATTRIBUTES)) {
2411	return NT_STATUS_OK;
2412	}
2413
2414	return NT_STATUS_ACCESS_DENIED;
2415	}
2416
2417	/*******************************************************************
2418	* unlink a file with all relevant access checks
2419	*******************************************************************/
2420
2421	static NTSTATUS do_unlink(connection_struct *conn,
2422	struct smb_request *req,
2423	struct smb_filename *smb_fname,
2424	uint32 dirtype)
2425	{
2426	uint32 fattr;
2427	files_struct *fsp;
2428	uint32 dirtype_orig = dirtype;
2429	NTSTATUS status;
2430	int ret;
2431	bool posix_paths = lp_posix_pathnames();
2432
2433	DEBUG(10,("do_unlink: %s, dirtype = %d\n",
2434	smb_fname_str_dbg(smb_fname),
2435	dirtype));
2436
2437	if (!CAN_WRITE(conn)) {
2438	return NT_STATUS_MEDIA_WRITE_PROTECTED;
2439	}
2440
2441	if (posix_paths) {
2442	ret = SMB_VFS_LSTAT(conn, smb_fname);
2443	} else {
2444	ret = SMB_VFS_STAT(conn, smb_fname);
2445	}
2446	if (ret != 0) {
2447	return map_nt_error_from_unix(errno);
2448	}
2449
2450	fattr = dos_mode(conn, smb_fname);
2451
2452	if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2453	dirtype = FILE_ATTRIBUTE_DIRECTORY\|FILE_ATTRIBUTE_ARCHIVE\|FILE_ATTRIBUTE_READONLY;
2454	}
2455
2456	dirtype &= (FILE_ATTRIBUTE_DIRECTORY\|FILE_ATTRIBUTE_ARCHIVE\|FILE_ATTRIBUTE_READONLY\|FILE_ATTRIBUTE_HIDDEN\|FILE_ATTRIBUTE_SYSTEM);
2457	if (!dirtype) {
2458	return NT_STATUS_NO_SUCH_FILE;
2459	}
2460
2461	if (!dir_check_ftype(conn, fattr, dirtype)) {
2462	if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2463	return NT_STATUS_FILE_IS_A_DIRECTORY;
2464	}
2465	return NT_STATUS_NO_SUCH_FILE;
2466	}
2467
2468	if (dirtype_orig & 0x8000) {
2469	/* These will never be set for POSIX. */
2470	return NT_STATUS_NO_SUCH_FILE;
2471	}
2472
2473	#if 0
2474	if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2475	return NT_STATUS_FILE_IS_A_DIRECTORY;
2476	}
2477
2478	if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN\|FILE_ATTRIBUTE_SYSTEM)) {
2479	return NT_STATUS_NO_SUCH_FILE;
2480	}
2481
2482	if (dirtype & 0xFF00) {
2483	/* These will never be set for POSIX. */
2484	return NT_STATUS_NO_SUCH_FILE;
2485	}
2486
2487	dirtype &= 0xFF;
2488	if (!dirtype) {
2489	return NT_STATUS_NO_SUCH_FILE;
2490	}
2491
2492	/* Can't delete a directory. */
2493	if (fattr & FILE_ATTRIBUTE_DIRECTORY) {
2494	return NT_STATUS_FILE_IS_A_DIRECTORY;
2495	}
2496	#endif
2497
2498	#if 0 /* JRATEST */
2499	else if (dirtype & FILE_ATTRIBUTE_DIRECTORY) /* Asked for a directory and it isn't. */
2500	return NT_STATUS_OBJECT_NAME_INVALID;
2501	#endif /* JRATEST */
2502
2503	/* On open checks the open itself will check the share mode, so
2504	don't do it here as we'll get it wrong. */
2505
2506	status = SMB_VFS_CREATE_FILE
2507	(conn, /* conn */
2508	req, /* req */
2509	0, /* root_dir_fid */
2510	smb_fname, /* fname */
2511	DELETE_ACCESS, /* access_mask */
2512	FILE_SHARE_NONE, /* share_access */
2513	FILE_OPEN, /* create_disposition*/
2514	FILE_NON_DIRECTORY_FILE, /* create_options */
2515	/* file_attributes */
2516	posix_paths ? FILE_FLAG_POSIX_SEMANTICS\|0777 :
2517	FILE_ATTRIBUTE_NORMAL,
2518	0, /* oplock_request */
2519	0, /* allocation_size */
2520	0, /* private_flags */
2521	NULL, /* sd */
2522	NULL, /* ea_list */
2523	&fsp, /* result */
2524	NULL); /* pinfo */
2525
2526	if (!NT_STATUS_IS_OK(status)) {
2527	DEBUG(10, ("SMB_VFS_CREATEFILE failed: %s\n",
2528	nt_errstr(status)));
2529	return status;
2530	}
2531
2532	status = can_set_delete_on_close(fsp, fattr);
2533	if (!NT_STATUS_IS_OK(status)) {
2534	DEBUG(10, ("do_unlink can_set_delete_on_close for file %s - "
2535	"(%s)\n",
2536	smb_fname_str_dbg(smb_fname),
2537	nt_errstr(status)));
2538	close_file(req, fsp, NORMAL_CLOSE);
2539	return status;
2540	}
2541
2542	/* The set is across all open files on this dev/inode pair. */
2543	if (!set_delete_on_close(fsp, True, &conn->session_info->utok)) {
2544	close_file(req, fsp, NORMAL_CLOSE);
2545	return NT_STATUS_ACCESS_DENIED;
2546	}
2547
2548	return close_file(req, fsp, NORMAL_CLOSE);
2549	}
2550
2551	/****************************************************************************
2552	The guts of the unlink command, split out so it may be called by the NT SMB
2553	code.
2554	****************************************************************************/
2555
2556	NTSTATUS unlink_internals(connection_struct conn, struct smb_request req,
2557	uint32 dirtype, struct smb_filename *smb_fname,
2558	bool has_wild)
2559	{
2560	char *fname_dir = NULL;
2561	char *fname_mask = NULL;
2562	int count=0;
2563	NTSTATUS status = NT_STATUS_OK;
2564	TALLOC_CTX *ctx = talloc_tos();
2565
2566	/* Split up the directory from the filename/mask. */
2567	status = split_fname_dir_mask(ctx, smb_fname->base_name,
2568	&fname_dir, &fname_mask);
2569	if (!NT_STATUS_IS_OK(status)) {
2570	goto out;
2571	}
2572
2573	/*
2574	* We should only check the mangled cache
2575	* here if unix_convert failed. This means
2576	* that the path in 'mask' doesn't exist
2577	* on the file system and so we need to look
2578	* for a possible mangle. This patch from
2579	* Tine Smukavec <valentin.smukavec@hermes.si>.
2580	*/
2581
2582	if (!VALID_STAT(smb_fname->st) &&
2583	mangle_is_mangled(fname_mask, conn->params)) {
2584	char *new_mask = NULL;
2585	mangle_lookup_name_from_8_3(ctx, fname_mask,
2586	&new_mask, conn->params);
2587	if (new_mask) {
2588	TALLOC_FREE(fname_mask);
2589	fname_mask = new_mask;
2590	}
2591	}
2592
2593	if (!has_wild) {
2594
2595	/*
2596	* Only one file needs to be unlinked. Append the mask back
2597	* onto the directory.
2598	*/
2599	TALLOC_FREE(smb_fname->base_name);
2600	if (ISDOT(fname_dir)) {
2601	/* Ensure we use canonical names on open. */
2602	smb_fname->base_name = talloc_asprintf(smb_fname,
2603	"%s",
2604	fname_mask);
2605	} else {
2606	smb_fname->base_name = talloc_asprintf(smb_fname,
2607	"%s/%s",
2608	fname_dir,
2609	fname_mask);
2610	}
2611	if (!smb_fname->base_name) {
2612	status = NT_STATUS_NO_MEMORY;
2613	goto out;
2614	}
2615	if (dirtype == 0) {
2616	dirtype = FILE_ATTRIBUTE_NORMAL;
2617	}
2618
2619	status = check_name(conn, smb_fname->base_name);
2620	if (!NT_STATUS_IS_OK(status)) {
2621	goto out;
2622	}
2623
2624	status = do_unlink(conn, req, smb_fname, dirtype);
2625	if (!NT_STATUS_IS_OK(status)) {
2626	goto out;
2627	}
2628
2629	count++;
2630	} else {
2631	struct smb_Dir *dir_hnd = NULL;
2632	long offset = 0;
2633	const char *dname = NULL;
2634	char *talloced = NULL;
2635
2636	if ((dirtype & SAMBA_ATTRIBUTES_MASK) == FILE_ATTRIBUTE_DIRECTORY) {
2637	status = NT_STATUS_OBJECT_NAME_INVALID;
2638	goto out;
2639	}
2640
2641	if (strequal(fname_mask,"????????.???")) {
2642	TALLOC_FREE(fname_mask);
2643	fname_mask = talloc_strdup(ctx, "*");
2644	if (!fname_mask) {
2645	status = NT_STATUS_NO_MEMORY;
2646	goto out;
2647	}
2648	}
2649
2650	status = check_name(conn, fname_dir);
2651	if (!NT_STATUS_IS_OK(status)) {
2652	goto out;
2653	}
2654
2655	dir_hnd = OpenDir(talloc_tos(), conn, fname_dir, fname_mask,
2656	dirtype);
2657	if (dir_hnd == NULL) {
2658	status = map_nt_error_from_unix(errno);
2659	goto out;
2660	}
2661
2662	/* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2663	the pattern matches against the long name, otherwise the short name
2664	We don't implement this yet XXXX
2665	*/
2666
2667	status = NT_STATUS_NO_SUCH_FILE;
2668
2669	while ((dname = ReadDirName(dir_hnd, &offset,
2670	&smb_fname->st, &talloced))) {
2671	TALLOC_CTX *frame = talloc_stackframe();
2672
2673	if (!is_visible_file(conn, fname_dir, dname,
2674	&smb_fname->st, true)) {
2675	TALLOC_FREE(frame);
2676	TALLOC_FREE(talloced);
2677	continue;
2678	}
2679
2680	/* Quick check for "." and ".." */
2681	if (ISDOT(dname) \|\| ISDOTDOT(dname)) {
2682	TALLOC_FREE(frame);
2683	TALLOC_FREE(talloced);
2684	continue;
2685	}
2686
2687	if(!mask_match(dname, fname_mask,
2688	conn->case_sensitive)) {
2689	TALLOC_FREE(frame);
2690	TALLOC_FREE(talloced);
2691	continue;
2692	}
2693
2694	TALLOC_FREE(smb_fname->base_name);
2695	if (ISDOT(fname_dir)) {
2696	/* Ensure we use canonical names on open. */
2697	smb_fname->base_name =
2698	talloc_asprintf(smb_fname, "%s",
2699	dname);
2700	} else {
2701	smb_fname->base_name =
2702	talloc_asprintf(smb_fname, "%s/%s",
2703	fname_dir, dname);
2704	}
2705
2706	if (!smb_fname->base_name) {
2707	TALLOC_FREE(dir_hnd);
2708	status = NT_STATUS_NO_MEMORY;
2709	TALLOC_FREE(frame);
2710	TALLOC_FREE(talloced);
2711	goto out;
2712	}
2713
2714	status = check_name(conn, smb_fname->base_name);
2715	if (!NT_STATUS_IS_OK(status)) {
2716	TALLOC_FREE(dir_hnd);
2717	TALLOC_FREE(frame);
2718	TALLOC_FREE(talloced);
2719	goto out;
2720	}
2721
2722	status = do_unlink(conn, req, smb_fname, dirtype);
2723	if (!NT_STATUS_IS_OK(status)) {
2724	TALLOC_FREE(frame);
2725	TALLOC_FREE(talloced);
2726	continue;
2727	}
2728
2729	count++;
2730	DEBUG(3,("unlink_internals: successful unlink [%s]\n",
2731	smb_fname->base_name));
2732
2733	TALLOC_FREE(frame);
2734	TALLOC_FREE(talloced);
2735	}
2736	TALLOC_FREE(dir_hnd);
2737	}
2738
2739	if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
2740	status = map_nt_error_from_unix(errno);
2741	}
2742
2743	out:
2744	TALLOC_FREE(fname_dir);
2745	TALLOC_FREE(fname_mask);
2746	return status;
2747	}
2748
2749	/****************************************************************************
2750	Reply to a unlink
2751	****************************************************************************/
2752
2753	void reply_unlink(struct smb_request *req)
2754	{
2755	connection_struct *conn = req->conn;
2756	char *name = NULL;
2757	struct smb_filename *smb_fname = NULL;
2758	uint32 dirtype;
2759	NTSTATUS status;
2760	bool path_contains_wcard = False;
2761	TALLOC_CTX *ctx = talloc_tos();
2762
2763	START_PROFILE(SMBunlink);
2764
2765	if (req->wct < 1) {
2766	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2767	goto out;
2768	}
2769
2770	dirtype = SVAL(req->vwv+0, 0);
2771
2772	srvstr_get_path_req_wcard(ctx, req, &name, (const char *)req->buf + 1,
2773	STR_TERMINATE, &status,
2774	&path_contains_wcard);
2775	if (!NT_STATUS_IS_OK(status)) {
2776	reply_nterror(req, status);
2777	goto out;
2778	}
2779
2780	status = filename_convert(ctx, conn,
2781	req->flags2 & FLAGS2_DFS_PATHNAMES,
2782	name,
2783	UCF_COND_ALLOW_WCARD_LCOMP,
2784	&path_contains_wcard,
2785	&smb_fname);
2786	if (!NT_STATUS_IS_OK(status)) {
2787	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2788	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2789	ERRSRV, ERRbadpath);
2790	goto out;
2791	}
2792	reply_nterror(req, status);
2793	goto out;
2794	}
2795
2796	DEBUG(3,("reply_unlink : %s\n", smb_fname_str_dbg(smb_fname)));
2797
2798	status = unlink_internals(conn, req, dirtype, smb_fname,
2799	path_contains_wcard);
2800	if (!NT_STATUS_IS_OK(status)) {
2801	if (open_was_deferred(req->mid)) {
2802	/* We have re-scheduled this call. */
2803	goto out;
2804	}
2805	reply_nterror(req, status);
2806	goto out;
2807	}
2808
2809	reply_outbuf(req, 0, 0);
2810	out:
2811	TALLOC_FREE(smb_fname);
2812	END_PROFILE(SMBunlink);
2813	return;
2814	}
2815
2816	/****************************************************************************
2817	Fail for readbraw.
2818	****************************************************************************/
2819
2820	static void fail_readraw(void)
2821	{
2822	const char *errstr = talloc_asprintf(talloc_tos(),
2823	"FAIL ! reply_readbraw: socket write fail (%s)",
2824	strerror(errno));
2825	if (!errstr) {
2826	errstr = "";
2827	}
2828	exit_server_cleanly(errstr);
2829	}
2830
2831	/****************************************************************************
2832	Fake (read/write) sendfile. Returns -1 on read or write fail.
2833	****************************************************************************/
2834
2835	ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos, size_t nread)
2836	{
2837	size_t bufsize;
2838	size_t tosend = nread;
2839	char *buf;
2840
2841	if (nread == 0) {
2842	return 0;
2843	}
2844
2845	bufsize = MIN(nread, 65536);
2846
2847	if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
2848	return -1;
2849	}
2850
2851	while (tosend > 0) {
2852	ssize_t ret;
2853	size_t cur_read;
2854
2855	if (tosend > bufsize) {
2856	cur_read = bufsize;
2857	} else {
2858	cur_read = tosend;
2859	}
2860	ret = read_file(fsp,buf,startpos,cur_read);
2861	if (ret == -1) {
2862	SAFE_FREE(buf);
2863	return -1;
2864	}
2865
2866	/* If we had a short read, fill with zeros. */
2867	if (ret < cur_read) {
2868	memset(buf + ret, '\0', cur_read - ret);
2869	}
2870
2871	if (write_data(fsp->conn->sconn->sock, buf, cur_read)
2872	!= cur_read) {
2873	char addr[INET6_ADDRSTRLEN];
2874	/*
2875	* Try and give an error message saying what
2876	* client failed.
2877	*/
2878	DEBUG(0, ("write_data failed for client %s. "
2879	"Error %s\n",
2880	get_peer_addr(fsp->conn->sconn->sock, addr,
2881	sizeof(addr)),
2882	strerror(errno)));
2883	SAFE_FREE(buf);
2884	return -1;
2885	}
2886	tosend -= cur_read;
2887	startpos += cur_read;
2888	}
2889
2890	SAFE_FREE(buf);
2891	return (ssize_t)nread;
2892	}
2893
2894	/****************************************************************************
2895	Deal with the case of sendfile reading less bytes from the file than
2896	requested. Fill with zeros (all we can do).
2897	****************************************************************************/
2898
2899	void sendfile_short_send(files_struct *fsp,
2900	ssize_t nread,
2901	size_t headersize,
2902	size_t smb_maxcnt)
2903	{
2904	#define SHORT_SEND_BUFSIZE 1024
2905	if (nread < headersize) {
2906	DEBUG(0,("sendfile_short_send: sendfile failed to send "
2907	"header for file %s (%s). Terminating\n",
2908	fsp_str_dbg(fsp), strerror(errno)));
2909	exit_server_cleanly("sendfile_short_send failed");
2910	}
2911
2912	nread -= headersize;
2913
2914	if (nread < smb_maxcnt) {
2915	char *buf = SMB_CALLOC_ARRAY(char, SHORT_SEND_BUFSIZE);
2916	if (!buf) {
2917	exit_server_cleanly("sendfile_short_send: "
2918	"malloc failed");
2919	}
2920
2921	DEBUG(0,("sendfile_short_send: filling truncated file %s "
2922	"with zeros !\n", fsp_str_dbg(fsp)));
2923
2924	while (nread < smb_maxcnt) {
2925	/*
2926	* We asked for the real file size and told sendfile
2927	* to not go beyond the end of the file. But it can
2928	* happen that in between our fstat call and the
2929	* sendfile call the file was truncated. This is very
2930	* bad because we have already announced the larger
2931	* number of bytes to the client.
2932	*
2933	* The best we can do now is to send 0-bytes, just as
2934	* a read from a hole in a sparse file would do.
2935	*
2936	* This should happen rarely enough that I don't care
2937	* about efficiency here :-)
2938	*/
2939	size_t to_write;
2940
2941	to_write = MIN(SHORT_SEND_BUFSIZE, smb_maxcnt - nread);
2942	if (write_data(fsp->conn->sconn->sock, buf, to_write)
2943	!= to_write) {
2944	char addr[INET6_ADDRSTRLEN];
2945	/*
2946	* Try and give an error message saying what
2947	* client failed.
2948	*/
2949	DEBUG(0, ("write_data failed for client %s. "
2950	"Error %s\n",
2951	get_peer_addr(
2952	fsp->conn->sconn->sock, addr,
2953	sizeof(addr)),
2954	strerror(errno)));
2955	exit_server_cleanly("sendfile_short_send: "
2956	"write_data failed");
2957	}
2958	nread += to_write;
2959	}
2960	SAFE_FREE(buf);
2961	}
2962	}
2963
2964	/****************************************************************************
2965	Return a readbraw error (4 bytes of zero).
2966	****************************************************************************/
2967
2968	static void reply_readbraw_error(struct smbd_server_connection *sconn)
2969	{
2970	char header[4];
2971
2972	SIVAL(header,0,0);
2973
2974	smbd_lock_socket(sconn);
2975	if (write_data(sconn->sock,header,4) != 4) {
2976	char addr[INET6_ADDRSTRLEN];
2977	/*
2978	* Try and give an error message saying what
2979	* client failed.
2980	*/
2981	DEBUG(0, ("write_data failed for client %s. "
2982	"Error %s\n",
2983	get_peer_addr(sconn->sock, addr, sizeof(addr)),
2984	strerror(errno)));
2985
2986	fail_readraw();
2987	}
2988	smbd_unlock_socket(sconn);
2989	}
2990
2991	/****************************************************************************
2992	Use sendfile in readbraw.
2993	****************************************************************************/
2994
2995	static void send_file_readbraw(connection_struct *conn,
2996	struct smb_request *req,
2997	files_struct *fsp,
2998	SMB_OFF_T startpos,
2999	size_t nread,
3000	ssize_t mincount)
3001	{
3002	struct smbd_server_connection *sconn = req->sconn;
3003	char *outbuf = NULL;
3004	ssize_t ret=0;
3005
3006	/*
3007	* We can only use sendfile on a non-chained packet
3008	* but we can use on a non-oplocked file. tridge proved this
3009	* on a train in Germany :-). JRA.
3010	* reply_readbraw has already checked the length.
3011	*/
3012
3013	if ( !req_is_in_chain(req) && (nread > 0) && (fsp->base_fsp == NULL) &&
3014	(fsp->wcp == NULL) &&
3015	lp_use_sendfile(SNUM(conn), req->sconn->smb1.signing_state) ) {
3016	ssize_t sendfile_read = -1;
3017	char header[4];
3018	DATA_BLOB header_blob;
3019
3020	_smb_setlen(header,nread);
3021	header_blob = data_blob_const(header, 4);
3022
3023	sendfile_read = SMB_VFS_SENDFILE(sconn->sock, fsp,
3024	&header_blob, startpos,
3025	nread);
3026	if (sendfile_read == -1) {
3027	/* Returning ENOSYS means no data at all was sent.
3028	* Do this as a normal read. */
3029	if (errno == ENOSYS) {
3030	goto normal_readbraw;
3031	}
3032
3033	/*
3034	* Special hack for broken Linux with no working sendfile. If we
3035	* return EINTR we sent the header but not the rest of the data.
3036	* Fake this up by doing read/write calls.
3037	*/
3038	if (errno == EINTR) {
3039	/* Ensure we don't do this again. */
3040	set_use_sendfile(SNUM(conn), False);
3041	DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
3042
3043	if (fake_sendfile(fsp, startpos, nread) == -1) {
3044	DEBUG(0,("send_file_readbraw: "
3045	"fake_sendfile failed for "
3046	"file %s (%s).\n",
3047	fsp_str_dbg(fsp),
3048	strerror(errno)));
3049	exit_server_cleanly("send_file_readbraw fake_sendfile failed");
3050	}
3051	return;
3052	}
3053
3054	DEBUG(0,("send_file_readbraw: sendfile failed for "
3055	"file %s (%s). Terminating\n",
3056	fsp_str_dbg(fsp), strerror(errno)));
3057	exit_server_cleanly("send_file_readbraw sendfile failed");
3058	} else if (sendfile_read == 0) {
3059	/*
3060	* Some sendfile implementations return 0 to indicate
3061	* that there was a short read, but nothing was
3062	* actually written to the socket. In this case,
3063	* fallback to the normal read path so the header gets
3064	* the correct byte count.
3065	*/
3066	DEBUG(3, ("send_file_readbraw: sendfile sent zero "
3067	"bytes falling back to the normal read: "
3068	"%s\n", fsp_str_dbg(fsp)));
3069	goto normal_readbraw;
3070	}
3071
3072	/* Deal with possible short send. */
3073	if (sendfile_read != 4+nread) {
3074	sendfile_short_send(fsp, sendfile_read, 4, nread);
3075	}
3076	return;
3077	}
3078
3079	normal_readbraw:
3080
3081	outbuf = TALLOC_ARRAY(NULL, char, nread+4);
3082	if (!outbuf) {
3083	DEBUG(0,("send_file_readbraw: TALLOC_ARRAY failed for size %u.\n",
3084	(unsigned)(nread+4)));
3085	reply_readbraw_error(sconn);
3086	return;
3087	}
3088
3089	if (nread > 0) {
3090	ret = read_file(fsp,outbuf+4,startpos,nread);
3091	#if 0 /* mincount appears to be ignored in a W2K server. JRA. */
3092	if (ret < mincount)
3093	ret = 0;
3094	#else
3095	if (ret < nread)
3096	ret = 0;
3097	#endif
3098	}
3099
3100	_smb_setlen(outbuf,ret);
3101	if (write_data(sconn->sock, outbuf, 4+ret) != 4+ret) {
3102	char addr[INET6_ADDRSTRLEN];
3103	/*
3104	* Try and give an error message saying what
3105	* client failed.
3106	*/
3107	DEBUG(0, ("write_data failed for client %s. "
3108	"Error %s\n",
3109	get_peer_addr(fsp->conn->sconn->sock, addr,
3110	sizeof(addr)),
3111	strerror(errno)));
3112
3113	fail_readraw();
3114	}
3115
3116	TALLOC_FREE(outbuf);
3117	}
3118
3119	/****************************************************************************
3120	Reply to a readbraw (core+ protocol).
3121	****************************************************************************/
3122
3123	void reply_readbraw(struct smb_request *req)
3124	{
3125	connection_struct *conn = req->conn;
3126	struct smbd_server_connection *sconn = req->sconn;
3127	ssize_t maxcount,mincount;
3128	size_t nread = 0;
3129	SMB_OFF_T startpos;
3130	files_struct *fsp;
3131	struct lock_struct lock;
3132	SMB_OFF_T size = 0;
3133
3134	START_PROFILE(SMBreadbraw);
3135
3136	if (srv_is_signing_active(sconn) \|\|
3137	is_encrypted_packet(req->inbuf)) {
3138	exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
3139	"raw reads/writes are disallowed.");
3140	}
3141
3142	if (req->wct < 8) {
3143	reply_readbraw_error(sconn);
3144	END_PROFILE(SMBreadbraw);
3145	return;
3146	}
3147
3148	if (sconn->smb1.echo_handler.trusted_fde) {
3149	DEBUG(2,("SMBreadbraw rejected with NOT_SUPPORTED because of "
3150	"'async smb echo handler = yes'\n"));
3151	reply_readbraw_error(sconn);
3152	END_PROFILE(SMBreadbraw);
3153	return;
3154	}
3155
3156	/*
3157	* Special check if an oplock break has been issued
3158	* and the readraw request croses on the wire, we must
3159	* return a zero length response here.
3160	*/
3161
3162	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3163
3164	/*
3165	* We have to do a check_fsp by hand here, as
3166	* we must always return 4 zero bytes on error,
3167	* not a NTSTATUS.
3168	*/
3169
3170	if (!fsp \|\| !conn \|\| conn != fsp->conn \|\|
3171	req->vuid != fsp->vuid \|\|
3172	fsp->is_directory \|\| fsp->fh->fd == -1) {
3173	/*
3174	* fsp could be NULL here so use the value from the packet. JRA.
3175	*/
3176	DEBUG(3,("reply_readbraw: fnum %d not valid "
3177	"- cache prime?\n",
3178	(int)SVAL(req->vwv+0, 0)));
3179	reply_readbraw_error(sconn);
3180	END_PROFILE(SMBreadbraw);
3181	return;
3182	}
3183
3184	/* Do a "by hand" version of CHECK_READ. */
3185	if (!(fsp->can_read \|\|
3186	((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
3187	(fsp->access_mask & FILE_EXECUTE)))) {
3188	DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
3189	(int)SVAL(req->vwv+0, 0)));
3190	reply_readbraw_error(sconn);
3191	END_PROFILE(SMBreadbraw);
3192	return;
3193	}
3194
3195	flush_write_cache(fsp, READRAW_FLUSH);
3196
3197	startpos = IVAL_TO_SMB_OFF_T(req->vwv+1, 0);
3198	if(req->wct == 10) {
3199	/*
3200	* This is a large offset (64 bit) read.
3201	*/
3202	#ifdef LARGE_SMB_OFF_T
3203
3204	startpos \|= (((SMB_OFF_T)IVAL(req->vwv+8, 0)) << 32);
3205
3206	#else /* !LARGE_SMB_OFF_T */
3207
3208	/*
3209	* Ensure we haven't been sent a >32 bit offset.
3210	*/
3211
3212	if(IVAL(req->vwv+8, 0) != 0) {
3213	DEBUG(0,("reply_readbraw: large offset "
3214	"(%x << 32) used and we don't support "
3215	"64 bit offsets.\n",
3216	(unsigned int)IVAL(req->vwv+8, 0) ));
3217	reply_readbraw_error(sconn);
3218	END_PROFILE(SMBreadbraw);
3219	return;
3220	}
3221
3222	#endif /* LARGE_SMB_OFF_T */
3223
3224	if(startpos < 0) {
3225	DEBUG(0,("reply_readbraw: negative 64 bit "
3226	"readraw offset (%.0f) !\n",
3227	(double)startpos ));
3228	reply_readbraw_error(sconn);
3229	END_PROFILE(SMBreadbraw);
3230	return;
3231	}
3232	}
3233
3234	maxcount = (SVAL(req->vwv+3, 0) & 0xFFFF);
3235	mincount = (SVAL(req->vwv+4, 0) & 0xFFFF);
3236
3237	/* ensure we don't overrun the packet size */
3238	maxcount = MIN(65535,maxcount);
3239
3240	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3241	(uint64_t)startpos, (uint64_t)maxcount, READ_LOCK,
3242	&lock);
3243
3244	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3245	reply_readbraw_error(sconn);
3246	END_PROFILE(SMBreadbraw);
3247	return;
3248	}
3249
3250	if (fsp_stat(fsp) == 0) {
3251	size = fsp->fsp_name->st.st_ex_size;
3252	}
3253
3254	if (startpos >= size) {
3255	nread = 0;
3256	} else {
3257	nread = MIN(maxcount,(size - startpos));
3258	}
3259
3260	#if 0 /* mincount appears to be ignored in a W2K server. JRA. */
3261	if (nread < mincount)
3262	nread = 0;
3263	#endif
3264
3265	DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
3266	"min=%lu nread=%lu\n",
3267	fsp->fnum, (double)startpos,
3268	(unsigned long)maxcount,
3269	(unsigned long)mincount,
3270	(unsigned long)nread ) );
3271
3272	send_file_readbraw(conn, req, fsp, startpos, nread, mincount);
3273
3274	DEBUG(5,("reply_readbraw finished\n"));
3275
3276	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3277
3278	END_PROFILE(SMBreadbraw);
3279	return;
3280	}
3281
3282	#undef DBGC_CLASS
3283	#define DBGC_CLASS DBGC_LOCKING
3284
3285	/****************************************************************************
3286	Reply to a lockread (core+ protocol).
3287	****************************************************************************/
3288
3289	void reply_lockread(struct smb_request *req)
3290	{
3291	connection_struct *conn = req->conn;
3292	ssize_t nread = -1;
3293	char *data;
3294	SMB_OFF_T startpos;
3295	size_t numtoread;
3296	NTSTATUS status;
3297	files_struct *fsp;
3298	struct byte_range_lock *br_lck = NULL;
3299	char *p = NULL;
3300	struct smbd_server_connection *sconn = req->sconn;
3301
3302	START_PROFILE(SMBlockread);
3303
3304	if (req->wct < 5) {
3305	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3306	END_PROFILE(SMBlockread);
3307	return;
3308	}
3309
3310	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3311
3312	if (!check_fsp(conn, req, fsp)) {
3313	END_PROFILE(SMBlockread);
3314	return;
3315	}
3316
3317	if (!CHECK_READ(fsp,req)) {
3318	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3319	END_PROFILE(SMBlockread);
3320	return;
3321	}
3322
3323	numtoread = SVAL(req->vwv+1, 0);
3324	startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3325
3326	numtoread = MIN(BUFFER_SIZE - (smb_size + 3*2 + 3), numtoread);
3327
3328	reply_outbuf(req, 5, numtoread + 3);
3329
3330	data = smb_buf(req->outbuf) + 3;
3331
3332	/*
3333	* NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
3334	* protocol request that predates the read/write lock concept.
3335	* Thus instead of asking for a read lock here we need to ask
3336	* for a write lock. JRA.
3337	* Note that the requested lock size is unaffected by max_recv.
3338	*/
3339
3340	br_lck = do_lock(req->sconn->msg_ctx,
3341	fsp,
3342	(uint64_t)req->smbpid,
3343	(uint64_t)numtoread,
3344	(uint64_t)startpos,
3345	WRITE_LOCK,
3346	WINDOWS_LOCK,
3347	False, /* Non-blocking lock. */
3348	&status,
3349	NULL,
3350	NULL);
3351	TALLOC_FREE(br_lck);
3352
3353	if (NT_STATUS_V(status)) {
3354	reply_nterror(req, status);
3355	END_PROFILE(SMBlockread);
3356	return;
3357	}
3358
3359	/*
3360	* However the requested READ size IS affected by max_recv. Insanity.... JRA.
3361	*/
3362
3363	if (numtoread > sconn->smb1.negprot.max_recv) {
3364	DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
3365	Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3366	(unsigned int)numtoread,
3367	(unsigned int)sconn->smb1.negprot.max_recv));
3368	numtoread = MIN(numtoread, sconn->smb1.negprot.max_recv);
3369	}
3370	nread = read_file(fsp,data,startpos,numtoread);
3371
3372	if (nread < 0) {
3373	reply_nterror(req, map_nt_error_from_unix(errno));
3374	END_PROFILE(SMBlockread);
3375	return;
3376	}
3377
3378	srv_set_message((char *)req->outbuf, 5, nread+3, False);
3379
3380	SSVAL(req->outbuf,smb_vwv0,nread);
3381	SSVAL(req->outbuf,smb_vwv5,nread+3);
3382	p = smb_buf(req->outbuf);
3383	SCVAL(p,0,0); /* pad byte. */
3384	SSVAL(p,1,nread);
3385
3386	DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
3387	fsp->fnum, (int)numtoread, (int)nread));
3388
3389	END_PROFILE(SMBlockread);
3390	return;
3391	}
3392
3393	#undef DBGC_CLASS
3394	#define DBGC_CLASS DBGC_ALL
3395
3396	/****************************************************************************
3397	Reply to a read.
3398	****************************************************************************/
3399
3400	void reply_read(struct smb_request *req)
3401	{
3402	connection_struct *conn = req->conn;
3403	size_t numtoread;
3404	ssize_t nread = 0;
3405	char *data;
3406	SMB_OFF_T startpos;
3407	int outsize = 0;
3408	files_struct *fsp;
3409	struct lock_struct lock;
3410	struct smbd_server_connection *sconn = req->sconn;
3411
3412	START_PROFILE(SMBread);
3413
3414	if (req->wct < 3) {
3415	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3416	END_PROFILE(SMBread);
3417	return;
3418	}
3419
3420	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3421
3422	if (!check_fsp(conn, req, fsp)) {
3423	END_PROFILE(SMBread);
3424	return;
3425	}
3426
3427	if (!CHECK_READ(fsp,req)) {
3428	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3429	END_PROFILE(SMBread);
3430	return;
3431	}
3432
3433	numtoread = SVAL(req->vwv+1, 0);
3434	startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3435
3436	numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
3437
3438	/*
3439	* The requested read size cannot be greater than max_recv. JRA.
3440	*/
3441	if (numtoread > sconn->smb1.negprot.max_recv) {
3442	DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
3443	Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3444	(unsigned int)numtoread,
3445	(unsigned int)sconn->smb1.negprot.max_recv));
3446	numtoread = MIN(numtoread, sconn->smb1.negprot.max_recv);
3447	}
3448
3449	reply_outbuf(req, 5, numtoread+3);
3450
3451	data = smb_buf(req->outbuf) + 3;
3452
3453	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3454	(uint64_t)startpos, (uint64_t)numtoread, READ_LOCK,
3455	&lock);
3456
3457	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3458	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
3459	END_PROFILE(SMBread);
3460	return;
3461	}
3462
3463	if (numtoread > 0)
3464	nread = read_file(fsp,data,startpos,numtoread);
3465
3466	if (nread < 0) {
3467	reply_nterror(req, map_nt_error_from_unix(errno));
3468	goto strict_unlock;
3469	}
3470
3471	srv_set_message((char *)req->outbuf, 5, nread+3, False);
3472
3473	SSVAL(req->outbuf,smb_vwv0,nread);
3474	SSVAL(req->outbuf,smb_vwv5,nread+3);
3475	SCVAL(smb_buf(req->outbuf),0,1);
3476	SSVAL(smb_buf(req->outbuf),1,nread);
3477
3478	DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
3479	fsp->fnum, (int)numtoread, (int)nread ) );
3480
3481	strict_unlock:
3482	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3483
3484	END_PROFILE(SMBread);
3485	return;
3486	}
3487
3488	/****************************************************************************
3489	Setup readX header.
3490	****************************************************************************/
3491
3492	static int setup_readX_header(struct smb_request req, char outbuf,
3493	size_t smb_maxcnt)
3494	{
3495	int outsize;
3496	char *data;
3497
3498	outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
3499	data = smb_buf(outbuf);
3500
3501	memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
3502
3503	SCVAL(outbuf,smb_vwv0,0xFF);
3504	SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
3505	SSVAL(outbuf,smb_vwv5,smb_maxcnt);
3506	SSVAL(outbuf,smb_vwv6,
3507	req_wct_ofs(req)
3508	+ 1 /* the wct field */
3509	+ 12 * sizeof(uint16_t) /* vwv */
3510	+ 2); /* the buflen field */
3511	SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
3512	SSVAL(outbuf,smb_vwv11,smb_maxcnt);
3513	/* Reset the outgoing length, set_message truncates at 0x1FFFF. */
3514	_smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
3515	return outsize;
3516	}
3517
3518	/****************************************************************************
3519	Reply to a read and X - possibly using sendfile.
3520	****************************************************************************/
3521
3522	static void send_file_readX(connection_struct conn, struct smb_request req,
3523	files_struct *fsp, SMB_OFF_T startpos,
3524	size_t smb_maxcnt)
3525	{
3526	ssize_t nread = -1;
3527	struct lock_struct lock;
3528	int saved_errno = 0;
3529
3530	if(fsp_stat(fsp) == -1) {
3531	reply_nterror(req, map_nt_error_from_unix(errno));
3532	return;
3533	}
3534
3535	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3536	(uint64_t)startpos, (uint64_t)smb_maxcnt, READ_LOCK,
3537	&lock);
3538
3539	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3540	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
3541	return;
3542	}
3543
3544	if (!S_ISREG(fsp->fsp_name->st.st_ex_mode) \|\|
3545	(startpos > fsp->fsp_name->st.st_ex_size)
3546	\|\| (smb_maxcnt > (fsp->fsp_name->st.st_ex_size - startpos))) {
3547	/*
3548	* We already know that we would do a short read, so don't
3549	* try the sendfile() path.
3550	*/
3551	goto nosendfile_read;
3552	}
3553
3554	/*
3555	* We can only use sendfile on a non-chained packet
3556	* but we can use on a non-oplocked file. tridge proved this
3557	* on a train in Germany :-). JRA.
3558	*/
3559
3560	if (!req_is_in_chain(req) &&
3561	!is_encrypted_packet(req->inbuf) && (fsp->base_fsp == NULL) &&
3562	(fsp->wcp == NULL) &&
3563	lp_use_sendfile(SNUM(conn), req->sconn->smb1.signing_state) ) {
3564	uint8 headerbuf[smb_size + 12 * 2];
3565	DATA_BLOB header;
3566
3567	/*
3568	* Set up the packet header before send. We
3569	* assume here the sendfile will work (get the
3570	* correct amount of data).
3571	*/
3572
3573	header = data_blob_const(headerbuf, sizeof(headerbuf));
3574
3575	construct_reply_common_req(req, (char *)headerbuf);
3576	setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3577
3578	nread = SMB_VFS_SENDFILE(req->sconn->sock, fsp, &header,
3579	startpos, smb_maxcnt);
3580	if (nread == -1) {
3581	/* Returning ENOSYS means no data at all was sent.
3582	Do this as a normal read. */
3583	if (errno == ENOSYS) {
3584	goto normal_read;
3585	}
3586
3587	/*
3588	* Special hack for broken Linux with no working sendfile. If we
3589	* return EINTR we sent the header but not the rest of the data.
3590	* Fake this up by doing read/write calls.
3591	*/
3592
3593	if (errno == EINTR) {
3594	/* Ensure we don't do this again. */
3595	set_use_sendfile(SNUM(conn), False);
3596	DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3597	nread = fake_sendfile(fsp, startpos,
3598	smb_maxcnt);
3599	if (nread == -1) {
3600	DEBUG(0,("send_file_readX: "
3601	"fake_sendfile failed for "
3602	"file %s (%s).\n",
3603	fsp_str_dbg(fsp),
3604	strerror(errno)));
3605	exit_server_cleanly("send_file_readX: fake_sendfile failed");
3606	}
3607	DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
3608	fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3609	/* No outbuf here means successful sendfile. */
3610	goto strict_unlock;
3611	}
3612
3613	DEBUG(0,("send_file_readX: sendfile failed for file "
3614	"%s (%s). Terminating\n", fsp_str_dbg(fsp),
3615	strerror(errno)));
3616	exit_server_cleanly("send_file_readX sendfile failed");
3617	} else if (nread == 0) {
3618	/*
3619	* Some sendfile implementations return 0 to indicate
3620	* that there was a short read, but nothing was
3621	* actually written to the socket. In this case,
3622	* fallback to the normal read path so the header gets
3623	* the correct byte count.
3624	*/
3625	DEBUG(3, ("send_file_readX: sendfile sent zero bytes "
3626	"falling back to the normal read: %s\n",
3627	fsp_str_dbg(fsp)));
3628	goto normal_read;
3629	}
3630
3631	DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
3632	fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3633
3634	/* Deal with possible short send. */
3635	if (nread != smb_maxcnt + sizeof(headerbuf)) {
3636	sendfile_short_send(fsp, nread, sizeof(headerbuf), smb_maxcnt);
3637	}
3638	/* No outbuf here means successful sendfile. */
3639	SMB_PERFCOUNT_SET_MSGLEN_OUT(&req->pcd, nread);
3640	SMB_PERFCOUNT_END(&req->pcd);
3641	goto strict_unlock;
3642	}
3643
3644	normal_read:
3645
3646	if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3647	uint8 headerbuf[smb_size + 2*12];
3648
3649	construct_reply_common_req(req, (char *)headerbuf);
3650	setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3651
3652	/* Send out the header. */
3653	if (write_data(req->sconn->sock, (char *)headerbuf,
3654	sizeof(headerbuf)) != sizeof(headerbuf)) {
3655
3656	char addr[INET6_ADDRSTRLEN];
3657	/*
3658	* Try and give an error message saying what
3659	* client failed.
3660	*/
3661	DEBUG(0, ("write_data failed for client %s. "
3662	"Error %s\n",
3663	get_peer_addr(req->sconn->sock, addr,
3664	sizeof(addr)),
3665	strerror(errno)));
3666
3667	DEBUG(0,("send_file_readX: write_data failed for file "
3668	"%s (%s). Terminating\n", fsp_str_dbg(fsp),
3669	strerror(errno)));
3670	exit_server_cleanly("send_file_readX sendfile failed");
3671	}
3672	nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3673	if (nread == -1) {
3674	DEBUG(0,("send_file_readX: fake_sendfile failed for "
3675	"file %s (%s).\n", fsp_str_dbg(fsp),
3676	strerror(errno)));
3677	exit_server_cleanly("send_file_readX: fake_sendfile failed");
3678	}
3679	goto strict_unlock;
3680	}
3681
3682	nosendfile_read:
3683
3684	reply_outbuf(req, 12, smb_maxcnt);
3685
3686	nread = read_file(fsp, smb_buf(req->outbuf), startpos, smb_maxcnt);
3687	saved_errno = errno;
3688
3689	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3690
3691	if (nread < 0) {
3692	reply_nterror(req, map_nt_error_from_unix(saved_errno));
3693	return;
3694	}
3695
3696	setup_readX_header(req, (char *)req->outbuf, nread);
3697
3698	DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
3699	fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3700
3701	chain_reply(req);
3702	return;
3703
3704	strict_unlock:
3705	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
3706	TALLOC_FREE(req->outbuf);
3707	return;
3708	}
3709
3710	/****************************************************************************
3711	Reply to a read and X.
3712	****************************************************************************/
3713
3714	void reply_read_and_X(struct smb_request *req)
3715	{
3716	connection_struct *conn = req->conn;
3717	files_struct *fsp;
3718	SMB_OFF_T startpos;
3719	size_t smb_maxcnt;
3720	bool big_readX = False;
3721	#if 0
3722	size_t smb_mincnt = SVAL(req->vwv+6, 0);
3723	#endif
3724
3725	START_PROFILE(SMBreadX);
3726
3727	if ((req->wct != 10) && (req->wct != 12)) {
3728	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3729	return;
3730	}
3731
3732	fsp = file_fsp(req, SVAL(req->vwv+2, 0));
3733	startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3734	smb_maxcnt = SVAL(req->vwv+5, 0);
3735
3736	/* If it's an IPC, pass off the pipe handler. */
3737	if (IS_IPC(conn)) {
3738	reply_pipe_read_and_X(req);
3739	END_PROFILE(SMBreadX);
3740	return;
3741	}
3742
3743	if (!check_fsp(conn, req, fsp)) {
3744	END_PROFILE(SMBreadX);
3745	return;
3746	}
3747
3748	if (!CHECK_READ(fsp,req)) {
3749	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3750	END_PROFILE(SMBreadX);
3751	return;
3752	}
3753
3754	if (global_client_caps & CAP_LARGE_READX) {
3755	size_t upper_size = SVAL(req->vwv+7, 0);
3756	smb_maxcnt \|= (upper_size<<16);
3757	if (upper_size > 1) {
3758	/* Can't do this on a chained packet. */
3759	if ((CVAL(req->vwv+0, 0) != 0xFF)) {
3760	reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3761	END_PROFILE(SMBreadX);
3762	return;
3763	}
3764	/* We currently don't do this on signed or sealed data. */
3765	if (srv_is_signing_active(req->sconn) \|\|
3766	is_encrypted_packet(req->inbuf)) {
3767	reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3768	END_PROFILE(SMBreadX);
3769	return;
3770	}
3771	/* Is there room in the reply for this data ? */
3772	if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2))) {
3773	reply_nterror(req,
3774	NT_STATUS_INVALID_PARAMETER);
3775	END_PROFILE(SMBreadX);
3776	return;
3777	}
3778	big_readX = True;
3779	}
3780	}
3781
3782	if (req->wct == 12) {
3783	#ifdef LARGE_SMB_OFF_T
3784	/*
3785	* This is a large offset (64 bit) read.
3786	*/
3787	startpos \|= (((SMB_OFF_T)IVAL(req->vwv+10, 0)) << 32);
3788
3789	#else /* !LARGE_SMB_OFF_T */
3790
3791	/*
3792	* Ensure we haven't been sent a >32 bit offset.
3793	*/
3794
3795	if(IVAL(req->vwv+10, 0) != 0) {
3796	DEBUG(0,("reply_read_and_X - large offset (%x << 32) "
3797	"used and we don't support 64 bit offsets.\n",
3798	(unsigned int)IVAL(req->vwv+10, 0) ));
3799	END_PROFILE(SMBreadX);
3800	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3801	return;
3802	}
3803
3804	#endif /* LARGE_SMB_OFF_T */
3805
3806	}
3807
3808	if (!big_readX) {
3809	NTSTATUS status = schedule_aio_read_and_X(conn,
3810	req,
3811	fsp,
3812	startpos,
3813	smb_maxcnt);
3814	if (NT_STATUS_IS_OK(status)) {
3815	/* Read scheduled - we're done. */
3816	goto out;
3817	}
3818	if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
3819	/* Real error - report to client. */
3820	END_PROFILE(SMBreadX);
3821	reply_nterror(req, status);
3822	return;
3823	}
3824	/* NT_STATUS_RETRY - fall back to sync read. */
3825	}
3826
3827	smbd_lock_socket(req->sconn);
3828	send_file_readX(conn, req, fsp, startpos, smb_maxcnt);
3829	smbd_unlock_socket(req->sconn);
3830
3831	out:
3832	END_PROFILE(SMBreadX);
3833	return;
3834	}
3835
3836	/****************************************************************************
3837	Error replies to writebraw must have smb_wct == 1. Fix this up.
3838	****************************************************************************/
3839
3840	void error_to_writebrawerr(struct smb_request *req)
3841	{
3842	uint8 *old_outbuf = req->outbuf;
3843
3844	reply_outbuf(req, 1, 0);
3845
3846	memcpy(req->outbuf, old_outbuf, smb_size);
3847	TALLOC_FREE(old_outbuf);
3848	}
3849
3850	/****************************************************************************
3851	Read 4 bytes of a smb packet and return the smb length of the packet.
3852	Store the result in the buffer. This version of the function will
3853	never return a session keepalive (length of zero).
3854	Timeout is in milliseconds.
3855	****************************************************************************/
3856
3857	static NTSTATUS read_smb_length(int fd, char *inbuf, unsigned int timeout,
3858	size_t *len)
3859	{
3860	uint8_t msgtype = SMBkeepalive;
3861
3862	while (msgtype == SMBkeepalive) {
3863	NTSTATUS status;
3864
3865	status = read_smb_length_return_keepalive(fd, inbuf, timeout,
3866	len);
3867	if (!NT_STATUS_IS_OK(status)) {
3868	char addr[INET6_ADDRSTRLEN];
3869	/* Try and give an error message
3870	* saying what client failed. */
3871	DEBUG(0, ("read_fd_with_timeout failed for "
3872	"client %s read error = %s.\n",
3873	get_peer_addr(fd,addr,sizeof(addr)),
3874	nt_errstr(status)));
3875	return status;
3876	}
3877
3878	msgtype = CVAL(inbuf, 0);
3879	}
3880
3881	DEBUG(10,("read_smb_length: got smb length of %lu\n",
3882	(unsigned long)len));
3883
3884	return NT_STATUS_OK;
3885	}
3886
3887	/****************************************************************************
3888	Reply to a writebraw (core+ or LANMAN1.0 protocol).
3889	****************************************************************************/
3890
3891	void reply_writebraw(struct smb_request *req)
3892	{
3893	connection_struct *conn = req->conn;
3894	char *buf = NULL;
3895	ssize_t nwritten=0;
3896	ssize_t total_written=0;
3897	size_t numtowrite=0;
3898	size_t tcount;
3899	SMB_OFF_T startpos;
3900	char *data=NULL;
3901	bool write_through;
3902	files_struct *fsp;
3903	struct lock_struct lock;
3904	NTSTATUS status;
3905
3906	START_PROFILE(SMBwritebraw);
3907
3908	/*
3909	* If we ever reply with an error, it must have the SMB command
3910	* type of SMBwritec, not SMBwriteBraw, as this tells the client
3911	* we're finished.
3912	*/
3913	SCVAL(req->inbuf,smb_com,SMBwritec);
3914
3915	if (srv_is_signing_active(req->sconn)) {
3916	END_PROFILE(SMBwritebraw);
3917	exit_server_cleanly("reply_writebraw: SMB signing is active - "
3918	"raw reads/writes are disallowed.");
3919	}
3920
3921	if (req->wct < 12) {
3922	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3923	error_to_writebrawerr(req);
3924	END_PROFILE(SMBwritebraw);
3925	return;
3926	}
3927
3928	if (req->sconn->smb1.echo_handler.trusted_fde) {
3929	DEBUG(2,("SMBwritebraw rejected with NOT_SUPPORTED because of "
3930	"'async smb echo handler = yes'\n"));
3931	reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3932	error_to_writebrawerr(req);
3933	END_PROFILE(SMBwritebraw);
3934	return;
3935	}
3936
3937	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3938	if (!check_fsp(conn, req, fsp)) {
3939	error_to_writebrawerr(req);
3940	END_PROFILE(SMBwritebraw);
3941	return;
3942	}
3943
3944	if (!CHECK_WRITE(fsp)) {
3945	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
3946	error_to_writebrawerr(req);
3947	END_PROFILE(SMBwritebraw);
3948	return;
3949	}
3950
3951	tcount = IVAL(req->vwv+1, 0);
3952	startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3953	write_through = BITSETW(req->vwv+7,0);
3954
3955	/* We have to deal with slightly different formats depending
3956	on whether we are using the core+ or lanman1.0 protocol */
3957
3958	if(get_Protocol() <= PROTOCOL_COREPLUS) {
3959	numtowrite = SVAL(smb_buf(req->inbuf),-2);
3960	data = smb_buf(req->inbuf);
3961	} else {
3962	numtowrite = SVAL(req->vwv+10, 0);
3963	data = smb_base(req->inbuf) + SVAL(req->vwv+11, 0);
3964	}
3965
3966	/* Ensure we don't write bytes past the end of this packet. */
3967	if (data + numtowrite > smb_base(req->inbuf) + smb_len(req->inbuf)) {
3968	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3969	error_to_writebrawerr(req);
3970	END_PROFILE(SMBwritebraw);
3971	return;
3972	}
3973
3974	if (!fsp->print_file) {
3975	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
3976	(uint64_t)startpos, (uint64_t)tcount, WRITE_LOCK,
3977	&lock);
3978
3979	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
3980	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
3981	error_to_writebrawerr(req);
3982	END_PROFILE(SMBwritebraw);
3983	return;
3984	}
3985	}
3986
3987	if (numtowrite>0) {
3988	nwritten = write_file(req,fsp,data,startpos,numtowrite);
3989	}
3990
3991	DEBUG(3,("reply_writebraw: initial write fnum=%d start=%.0f num=%d "
3992	"wrote=%d sync=%d\n",
3993	fsp->fnum, (double)startpos, (int)numtowrite,
3994	(int)nwritten, (int)write_through));
3995
3996	if (nwritten < (ssize_t)numtowrite) {
3997	reply_nterror(req, NT_STATUS_DISK_FULL);
3998	error_to_writebrawerr(req);
3999	goto strict_unlock;
4000	}
4001
4002	total_written = nwritten;
4003
4004	/* Allocate a buffer of 64k + length. */
4005	buf = TALLOC_ARRAY(NULL, char, 65540);
4006	if (!buf) {
4007	reply_nterror(req, NT_STATUS_NO_MEMORY);
4008	error_to_writebrawerr(req);
4009	goto strict_unlock;
4010	}
4011
4012	/* Return a SMBwritebraw message to the redirector to tell
4013	* it to send more bytes */
4014
4015	memcpy(buf, req->inbuf, smb_size);
4016	srv_set_message(buf,get_Protocol()>PROTOCOL_COREPLUS?1:0,0,True);
4017	SCVAL(buf,smb_com,SMBwritebraw);
4018	SSVALS(buf,smb_vwv0,0xFFFF);
4019	show_msg(buf);
4020	if (!srv_send_smb(req->sconn,
4021	buf,
4022	false, 0, /* no signing */
4023	IS_CONN_ENCRYPTED(conn),
4024	&req->pcd)) {
4025	exit_server_cleanly("reply_writebraw: srv_send_smb "
4026	"failed.");
4027	}
4028
4029	/* Now read the raw data into the buffer and write it */
4030	status = read_smb_length(req->sconn->sock, buf, SMB_SECONDARY_WAIT,
4031	&numtowrite);
4032	if (!NT_STATUS_IS_OK(status)) {
4033	exit_server_cleanly("secondary writebraw failed");
4034	}
4035
4036	/* Set up outbuf to return the correct size */
4037	reply_outbuf(req, 1, 0);
4038
4039	if (numtowrite != 0) {
4040
4041	if (numtowrite > 0xFFFF) {
4042	DEBUG(0,("reply_writebraw: Oversize secondary write "
4043	"raw requested (%u). Terminating\n",
4044	(unsigned int)numtowrite ));
4045	exit_server_cleanly("secondary writebraw failed");
4046	}
4047
4048	if (tcount > nwritten+numtowrite) {
4049	DEBUG(3,("reply_writebraw: Client overestimated the "
4050	"write %d %d %d\n",
4051	(int)tcount,(int)nwritten,(int)numtowrite));
4052	}
4053
4054	status = read_data(req->sconn->sock, buf+4, numtowrite);
4055
4056	if (!NT_STATUS_IS_OK(status)) {
4057	char addr[INET6_ADDRSTRLEN];
4058	/* Try and give an error message
4059	* saying what client failed. */
4060	DEBUG(0, ("reply_writebraw: Oversize secondary write "
4061	"raw read failed (%s) for client %s. "
4062	"Terminating\n", nt_errstr(status),
4063	get_peer_addr(req->sconn->sock, addr,
4064	sizeof(addr))));
4065	exit_server_cleanly("secondary writebraw failed");
4066	}
4067
4068	nwritten = write_file(req,fsp,buf+4,startpos+nwritten,numtowrite);
4069	if (nwritten == -1) {
4070	TALLOC_FREE(buf);
4071	reply_nterror(req, map_nt_error_from_unix(errno));
4072	error_to_writebrawerr(req);
4073	goto strict_unlock;
4074	}
4075
4076	if (nwritten < (ssize_t)numtowrite) {
4077	SCVAL(req->outbuf,smb_rcls,ERRHRD);
4078	SSVAL(req->outbuf,smb_err,ERRdiskfull);
4079	}
4080
4081	if (nwritten > 0) {
4082	total_written += nwritten;
4083	}
4084	}
4085
4086	TALLOC_FREE(buf);
4087	SSVAL(req->outbuf,smb_vwv0,total_written);
4088
4089	status = sync_file(conn, fsp, write_through);
4090	if (!NT_STATUS_IS_OK(status)) {
4091	DEBUG(5,("reply_writebraw: sync_file for %s returned %s\n",
4092	fsp_str_dbg(fsp), nt_errstr(status)));
4093	reply_nterror(req, status);
4094	error_to_writebrawerr(req);
4095	goto strict_unlock;
4096	}
4097
4098	DEBUG(3,("reply_writebraw: secondart write fnum=%d start=%.0f num=%d "
4099	"wrote=%d\n",
4100	fsp->fnum, (double)startpos, (int)numtowrite,
4101	(int)total_written));
4102
4103	if (!fsp->print_file) {
4104	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4105	}
4106
4107	/* We won't return a status if write through is not selected - this
4108	* follows what WfWg does */
4109	END_PROFILE(SMBwritebraw);
4110
4111	if (!write_through && total_written==tcount) {
4112
4113	#if RABBIT_PELLET_FIX
4114	/*
4115	* Fix for "rabbit pellet" mode, trigger an early TCP ack by
4116	* sending a SMBkeepalive. Thanks to DaveCB at Sun for this.
4117	* JRA.
4118	*/
4119	if (!send_keepalive(req->sconn->sock)) {
4120	exit_server_cleanly("reply_writebraw: send of "
4121	"keepalive failed");
4122	}
4123	#endif
4124	TALLOC_FREE(req->outbuf);
4125	}
4126	return;
4127
4128	strict_unlock:
4129	if (!fsp->print_file) {
4130	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4131	}
4132
4133	END_PROFILE(SMBwritebraw);
4134	return;
4135	}
4136
4137	#undef DBGC_CLASS
4138	#define DBGC_CLASS DBGC_LOCKING
4139
4140	/****************************************************************************
4141	Reply to a writeunlock (core+).
4142	****************************************************************************/
4143
4144	void reply_writeunlock(struct smb_request *req)
4145	{
4146	connection_struct *conn = req->conn;
4147	ssize_t nwritten = -1;
4148	size_t numtowrite;
4149	SMB_OFF_T startpos;
4150	const char *data;
4151	NTSTATUS status = NT_STATUS_OK;
4152	files_struct *fsp;
4153	struct lock_struct lock;
4154	int saved_errno = 0;
4155
4156	START_PROFILE(SMBwriteunlock);
4157
4158	if (req->wct < 5) {
4159	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4160	END_PROFILE(SMBwriteunlock);
4161	return;
4162	}
4163
4164	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4165
4166	if (!check_fsp(conn, req, fsp)) {
4167	END_PROFILE(SMBwriteunlock);
4168	return;
4169	}
4170
4171	if (!CHECK_WRITE(fsp)) {
4172	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4173	END_PROFILE(SMBwriteunlock);
4174	return;
4175	}
4176
4177	numtowrite = SVAL(req->vwv+1, 0);
4178	startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4179	data = (const char *)req->buf + 3;
4180
4181	if (!fsp->print_file && numtowrite > 0) {
4182	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4183	(uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4184	&lock);
4185
4186	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4187	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4188	END_PROFILE(SMBwriteunlock);
4189	return;
4190	}
4191	}
4192
4193	/* The special X/Open SMB protocol handling of
4194	zero length writes is NOT done for
4195	this call */
4196	if(numtowrite == 0) {
4197	nwritten = 0;
4198	} else {
4199	nwritten = write_file(req,fsp,data,startpos,numtowrite);
4200	saved_errno = errno;
4201	}
4202
4203	status = sync_file(conn, fsp, False /* write through */);
4204	if (!NT_STATUS_IS_OK(status)) {
4205	DEBUG(5,("reply_writeunlock: sync_file for %s returned %s\n",
4206	fsp_str_dbg(fsp), nt_errstr(status)));
4207	reply_nterror(req, status);
4208	goto strict_unlock;
4209	}
4210
4211	if(nwritten < 0) {
4212	reply_nterror(req, map_nt_error_from_unix(saved_errno));
4213	goto strict_unlock;
4214	}
4215
4216	if((nwritten < numtowrite) && (numtowrite != 0)) {
4217	reply_nterror(req, NT_STATUS_DISK_FULL);
4218	goto strict_unlock;
4219	}
4220
4221	if (numtowrite && !fsp->print_file) {
4222	status = do_unlock(req->sconn->msg_ctx,
4223	fsp,
4224	(uint64_t)req->smbpid,
4225	(uint64_t)numtowrite,
4226	(uint64_t)startpos,
4227	WINDOWS_LOCK);
4228
4229	if (NT_STATUS_V(status)) {
4230	reply_nterror(req, status);
4231	goto strict_unlock;
4232	}
4233	}
4234
4235	reply_outbuf(req, 1, 0);
4236
4237	SSVAL(req->outbuf,smb_vwv0,nwritten);
4238
4239	DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
4240	fsp->fnum, (int)numtowrite, (int)nwritten));
4241
4242	strict_unlock:
4243	if (numtowrite && !fsp->print_file) {
4244	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4245	}
4246
4247	END_PROFILE(SMBwriteunlock);
4248	return;
4249	}
4250
4251	#undef DBGC_CLASS
4252	#define DBGC_CLASS DBGC_ALL
4253
4254	/****************************************************************************
4255	Reply to a write.
4256	****************************************************************************/
4257
4258	void reply_write(struct smb_request *req)
4259	{
4260	connection_struct *conn = req->conn;
4261	size_t numtowrite;
4262	ssize_t nwritten = -1;
4263	SMB_OFF_T startpos;
4264	const char *data;
4265	files_struct *fsp;
4266	struct lock_struct lock;
4267	NTSTATUS status;
4268	int saved_errno = 0;
4269
4270	START_PROFILE(SMBwrite);
4271
4272	if (req->wct < 5) {
4273	END_PROFILE(SMBwrite);
4274	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4275	return;
4276	}
4277
4278	/* If it's an IPC, pass off the pipe handler. */
4279	if (IS_IPC(conn)) {
4280	reply_pipe_write(req);
4281	END_PROFILE(SMBwrite);
4282	return;
4283	}
4284
4285	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4286
4287	if (!check_fsp(conn, req, fsp)) {
4288	END_PROFILE(SMBwrite);
4289	return;
4290	}
4291
4292	if (!CHECK_WRITE(fsp)) {
4293	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4294	END_PROFILE(SMBwrite);
4295	return;
4296	}
4297
4298	numtowrite = SVAL(req->vwv+1, 0);
4299	startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4300	data = (const char *)req->buf + 3;
4301
4302	if (!fsp->print_file) {
4303	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4304	(uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4305	&lock);
4306
4307	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4308	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4309	END_PROFILE(SMBwrite);
4310	return;
4311	}
4312	}
4313
4314	/*
4315	* X/Open SMB protocol says that if smb_vwv1 is
4316	* zero then the file size should be extended or
4317	* truncated to the size given in smb_vwv[2-3].
4318	*/
4319
4320	if(numtowrite == 0) {
4321	/*
4322	* This is actually an allocate call, and set EOF. JRA.
4323	*/
4324	nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
4325	if (nwritten < 0) {
4326	reply_nterror(req, NT_STATUS_DISK_FULL);
4327	goto strict_unlock;
4328	}
4329	nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
4330	if (nwritten < 0) {
4331	reply_nterror(req, NT_STATUS_DISK_FULL);
4332	goto strict_unlock;
4333	}
4334	trigger_write_time_update_immediate(fsp);
4335	} else {
4336	nwritten = write_file(req,fsp,data,startpos,numtowrite);
4337	}
4338
4339	status = sync_file(conn, fsp, False);
4340	if (!NT_STATUS_IS_OK(status)) {
4341	DEBUG(5,("reply_write: sync_file for %s returned %s\n",
4342	fsp_str_dbg(fsp), nt_errstr(status)));
4343	reply_nterror(req, status);
4344	goto strict_unlock;
4345	}
4346
4347	if(nwritten < 0) {
4348	reply_nterror(req, map_nt_error_from_unix(saved_errno));
4349	goto strict_unlock;
4350	}
4351
4352	if((nwritten == 0) && (numtowrite != 0)) {
4353	reply_nterror(req, NT_STATUS_DISK_FULL);
4354	goto strict_unlock;
4355	}
4356
4357	reply_outbuf(req, 1, 0);
4358
4359	SSVAL(req->outbuf,smb_vwv0,nwritten);
4360
4361	if (nwritten < (ssize_t)numtowrite) {
4362	SCVAL(req->outbuf,smb_rcls,ERRHRD);
4363	SSVAL(req->outbuf,smb_err,ERRdiskfull);
4364	}
4365
4366	DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
4367
4368	strict_unlock:
4369	if (!fsp->print_file) {
4370	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4371	}
4372
4373	END_PROFILE(SMBwrite);
4374	return;
4375	}
4376
4377	/****************************************************************************
4378	Ensure a buffer is a valid writeX for recvfile purposes.
4379	****************************************************************************/
4380
4381	#define STANDARD_WRITE_AND_X_HEADER_SIZE (smb_size - 4 + /* basic header */ \
4382	(214) + / word count (including bcc) */ \
4383	1 /* pad byte */)
4384
4385	bool is_valid_writeX_buffer(struct smbd_server_connection *sconn,
4386	const uint8_t *inbuf)
4387	{
4388	size_t numtowrite;
4389	connection_struct *conn = NULL;
4390	unsigned int doff = 0;
4391	size_t len = smb_len_large(inbuf);
4392
4393	if (is_encrypted_packet(inbuf)) {
4394	/* Can't do this on encrypted
4395	* connections. */
4396	return false;
4397	}
4398
4399	if (CVAL(inbuf,smb_com) != SMBwriteX) {
4400	return false;
4401	}
4402
4403	if (CVAL(inbuf,smb_vwv0) != 0xFF \|\|
4404	CVAL(inbuf,smb_wct) != 14) {
4405	DEBUG(10,("is_valid_writeX_buffer: chained or "
4406	"invalid word length.\n"));
4407	return false;
4408	}
4409
4410	conn = conn_find(sconn, SVAL(inbuf, smb_tid));
4411	if (conn == NULL) {
4412	DEBUG(10,("is_valid_writeX_buffer: bad tid\n"));
4413	return false;
4414	}
4415	if (IS_IPC(conn)) {
4416	DEBUG(10,("is_valid_writeX_buffer: IPC$ tid\n"));
4417	return false;
4418	}
4419	if (IS_PRINT(conn)) {
4420	DEBUG(10,("is_valid_writeX_buffer: printing tid\n"));
4421	return false;
4422	}
4423	doff = SVAL(inbuf,smb_vwv11);
4424
4425	numtowrite = SVAL(inbuf,smb_vwv10);
4426
4427	if (len > doff && len - doff > 0xFFFF) {
4428	numtowrite \|= (((size_t)SVAL(inbuf,smb_vwv9))<<16);
4429	}
4430
4431	if (numtowrite == 0) {
4432	DEBUG(10,("is_valid_writeX_buffer: zero write\n"));
4433	return false;
4434	}
4435
4436	/* Ensure the sizes match up. */
4437	if (doff < STANDARD_WRITE_AND_X_HEADER_SIZE) {
4438	/* no pad byte...old smbclient :-( */
4439	DEBUG(10,("is_valid_writeX_buffer: small doff %u (min %u)\n",
4440	(unsigned int)doff,
4441	(unsigned int)STANDARD_WRITE_AND_X_HEADER_SIZE));
4442	return false;
4443	}
4444
4445	if (len - doff != numtowrite) {
4446	DEBUG(10,("is_valid_writeX_buffer: doff mismatch "
4447	"len = %u, doff = %u, numtowrite = %u\n",
4448	(unsigned int)len,
4449	(unsigned int)doff,
4450	(unsigned int)numtowrite ));
4451	return false;
4452	}
4453
4454	DEBUG(10,("is_valid_writeX_buffer: true "
4455	"len = %u, doff = %u, numtowrite = %u\n",
4456	(unsigned int)len,
4457	(unsigned int)doff,
4458	(unsigned int)numtowrite ));
4459
4460	return true;
4461	}
4462
4463	/****************************************************************************
4464	Reply to a write and X.
4465	****************************************************************************/
4466
4467	void reply_write_and_X(struct smb_request *req)
4468	{
4469	connection_struct *conn = req->conn;
4470	files_struct *fsp;
4471	struct lock_struct lock;
4472	SMB_OFF_T startpos;
4473	size_t numtowrite;
4474	bool write_through;
4475	ssize_t nwritten;
4476	unsigned int smb_doff;
4477	unsigned int smblen;
4478	char *data;
4479	NTSTATUS status;
4480	int saved_errno = 0;
4481
4482	START_PROFILE(SMBwriteX);
4483
4484	if ((req->wct != 12) && (req->wct != 14)) {
4485	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4486	END_PROFILE(SMBwriteX);
4487	return;
4488	}
4489
4490	numtowrite = SVAL(req->vwv+10, 0);
4491	smb_doff = SVAL(req->vwv+11, 0);
4492	smblen = smb_len(req->inbuf);
4493
4494	if (req->unread_bytes > 0xFFFF \|\|
4495	(smblen > smb_doff &&
4496	smblen - smb_doff > 0xFFFF)) {
4497	numtowrite \|= (((size_t)SVAL(req->vwv+9, 0))<<16);
4498	}
4499
4500	if (req->unread_bytes) {
4501	/* Can't do a recvfile write on IPC$ */
4502	if (IS_IPC(conn)) {
4503	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4504	END_PROFILE(SMBwriteX);
4505	return;
4506	}
4507	if (numtowrite != req->unread_bytes) {
4508	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4509	END_PROFILE(SMBwriteX);
4510	return;
4511	}
4512	} else {
4513	if (smb_doff > smblen \|\| smb_doff + numtowrite < numtowrite \|\|
4514	smb_doff + numtowrite > smblen) {
4515	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4516	END_PROFILE(SMBwriteX);
4517	return;
4518	}
4519	}
4520
4521	/* If it's an IPC, pass off the pipe handler. */
4522	if (IS_IPC(conn)) {
4523	if (req->unread_bytes) {
4524	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4525	END_PROFILE(SMBwriteX);
4526	return;
4527	}
4528	reply_pipe_write_and_X(req);
4529	END_PROFILE(SMBwriteX);
4530	return;
4531	}
4532
4533	fsp = file_fsp(req, SVAL(req->vwv+2, 0));
4534	startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
4535	write_through = BITSETW(req->vwv+7,0);
4536
4537	if (!check_fsp(conn, req, fsp)) {
4538	END_PROFILE(SMBwriteX);
4539	return;
4540	}
4541
4542	if (!CHECK_WRITE(fsp)) {
4543	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4544	END_PROFILE(SMBwriteX);
4545	return;
4546	}
4547
4548	data = smb_base(req->inbuf) + smb_doff;
4549
4550	if(req->wct == 14) {
4551	#ifdef LARGE_SMB_OFF_T
4552	/*
4553	* This is a large offset (64 bit) write.
4554	*/
4555	startpos \|= (((SMB_OFF_T)IVAL(req->vwv+12, 0)) << 32);
4556
4557	#else /* !LARGE_SMB_OFF_T */
4558
4559	/*
4560	* Ensure we haven't been sent a >32 bit offset.
4561	*/
4562
4563	if(IVAL(req->vwv+12, 0) != 0) {
4564	DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
4565	"used and we don't support 64 bit offsets.\n",
4566	(unsigned int)IVAL(req->vwv+12, 0) ));
4567	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4568	END_PROFILE(SMBwriteX);
4569	return;
4570	}
4571
4572	#endif /* LARGE_SMB_OFF_T */
4573	}
4574
4575	/* X/Open SMB protocol says that, unlike SMBwrite
4576	if the length is zero then NO truncation is
4577	done, just a write of zero. To truncate a file,
4578	use SMBwrite. */
4579
4580	if(numtowrite == 0) {
4581	nwritten = 0;
4582	} else {
4583	if (req->unread_bytes == 0) {
4584	status = schedule_aio_write_and_X(conn,
4585	req,
4586	fsp,
4587	data,
4588	startpos,
4589	numtowrite);
4590
4591	if (NT_STATUS_IS_OK(status)) {
4592	/* write scheduled - we're done. */
4593	goto out;
4594	}
4595	if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
4596	/* Real error - report to client. */
4597	reply_nterror(req, status);
4598	goto out;
4599	}
4600	/* NT_STATUS_RETRY - fall through to sync write. */
4601	}
4602
4603	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4604	(uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4605	&lock);
4606
4607	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4608	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4609	goto out;
4610	}
4611
4612	nwritten = write_file(req,fsp,data,startpos,numtowrite);
4613	saved_errno = errno;
4614
4615	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4616	}
4617
4618	if(nwritten < 0) {
4619	reply_nterror(req, map_nt_error_from_unix(saved_errno));
4620	goto out;
4621	}
4622
4623	if((nwritten == 0) && (numtowrite != 0)) {
4624	reply_nterror(req, NT_STATUS_DISK_FULL);
4625	goto out;
4626	}
4627
4628	reply_outbuf(req, 6, 0);
4629	SSVAL(req->outbuf,smb_vwv2,nwritten);
4630	SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
4631
4632	if (nwritten < (ssize_t)numtowrite) {
4633	SCVAL(req->outbuf,smb_rcls,ERRHRD);
4634	SSVAL(req->outbuf,smb_err,ERRdiskfull);
4635	}
4636
4637	DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
4638	fsp->fnum, (int)numtowrite, (int)nwritten));
4639
4640	status = sync_file(conn, fsp, write_through);
4641	if (!NT_STATUS_IS_OK(status)) {
4642	DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
4643	fsp_str_dbg(fsp), nt_errstr(status)));
4644	reply_nterror(req, status);
4645	goto out;
4646	}
4647
4648	END_PROFILE(SMBwriteX);
4649	chain_reply(req);
4650	return;
4651
4652	out:
4653	END_PROFILE(SMBwriteX);
4654	return;
4655	}
4656
4657	/****************************************************************************
4658	Reply to a lseek.
4659	****************************************************************************/
4660
4661	void reply_lseek(struct smb_request *req)
4662	{
4663	connection_struct *conn = req->conn;
4664	SMB_OFF_T startpos;
4665	SMB_OFF_T res= -1;
4666	int mode,umode;
4667	files_struct *fsp;
4668
4669	START_PROFILE(SMBlseek);
4670
4671	if (req->wct < 4) {
4672	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4673	END_PROFILE(SMBlseek);
4674	return;
4675	}
4676
4677	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4678
4679	if (!check_fsp(conn, req, fsp)) {
4680	return;
4681	}
4682
4683	flush_write_cache(fsp, SEEK_FLUSH);
4684
4685	mode = SVAL(req->vwv+1, 0) & 3;
4686	/* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
4687	startpos = (SMB_OFF_T)IVALS(req->vwv+2, 0);
4688
4689	switch (mode) {
4690	case 0:
4691	umode = SEEK_SET;
4692	res = startpos;
4693	break;
4694	case 1:
4695	umode = SEEK_CUR;
4696	res = fsp->fh->pos + startpos;
4697	break;
4698	case 2:
4699	umode = SEEK_END;
4700	break;
4701	default:
4702	umode = SEEK_SET;
4703	res = startpos;
4704	break;
4705	}
4706
4707	if (umode == SEEK_END) {
4708	if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
4709	if(errno == EINVAL) {
4710	SMB_OFF_T current_pos = startpos;
4711
4712	if(fsp_stat(fsp) == -1) {
4713	reply_nterror(req,
4714	map_nt_error_from_unix(errno));
4715	END_PROFILE(SMBlseek);
4716	return;
4717	}
4718
4719	current_pos += fsp->fsp_name->st.st_ex_size;
4720	if(current_pos < 0)
4721	res = SMB_VFS_LSEEK(fsp,0,SEEK_SET);
4722	}
4723	}
4724
4725	if(res == -1) {
4726	reply_nterror(req, map_nt_error_from_unix(errno));
4727	END_PROFILE(SMBlseek);
4728	return;
4729	}
4730	}
4731
4732	fsp->fh->pos = res;
4733
4734	reply_outbuf(req, 2, 0);
4735	SIVAL(req->outbuf,smb_vwv0,res);
4736
4737	DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
4738	fsp->fnum, (double)startpos, (double)res, mode));
4739
4740	END_PROFILE(SMBlseek);
4741	return;
4742	}
4743
4744	/****************************************************************************
4745	Reply to a flush.
4746	****************************************************************************/
4747
4748	void reply_flush(struct smb_request *req)
4749	{
4750	connection_struct *conn = req->conn;
4751	uint16 fnum;
4752	files_struct *fsp;
4753
4754	START_PROFILE(SMBflush);
4755
4756	if (req->wct < 1) {
4757	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4758	return;
4759	}
4760
4761	fnum = SVAL(req->vwv+0, 0);
4762	fsp = file_fsp(req, fnum);
4763
4764	if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp)) {
4765	return;
4766	}
4767
4768	if (!fsp) {
4769	file_sync_all(conn);
4770	} else {
4771	NTSTATUS status = sync_file(conn, fsp, True);
4772	if (!NT_STATUS_IS_OK(status)) {
4773	DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
4774	fsp_str_dbg(fsp), nt_errstr(status)));
4775	reply_nterror(req, status);
4776	END_PROFILE(SMBflush);
4777	return;
4778	}
4779	}
4780
4781	reply_outbuf(req, 0, 0);
4782
4783	DEBUG(3,("flush\n"));
4784	END_PROFILE(SMBflush);
4785	return;
4786	}
4787
4788	/****************************************************************************
4789	Reply to a exit.
4790	conn POINTER CAN BE NULL HERE !
4791	****************************************************************************/
4792
4793	void reply_exit(struct smb_request *req)
4794	{
4795	START_PROFILE(SMBexit);
4796
4797	file_close_pid(req->sconn, req->smbpid, req->vuid);
4798
4799	reply_outbuf(req, 0, 0);
4800
4801	DEBUG(3,("exit\n"));
4802
4803	END_PROFILE(SMBexit);
4804	return;
4805	}
4806
4807	/****************************************************************************
4808	Reply to a close - has to deal with closing a directory opened by NT SMB's.
4809	****************************************************************************/
4810
4811	void reply_close(struct smb_request *req)
4812	{
4813	connection_struct *conn = req->conn;
4814	NTSTATUS status = NT_STATUS_OK;
4815	files_struct *fsp = NULL;
4816	START_PROFILE(SMBclose);
4817
4818	if (req->wct < 3) {
4819	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4820	END_PROFILE(SMBclose);
4821	return;
4822	}
4823
4824	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4825
4826	/*
4827	* We can only use check_fsp if we know it's not a directory.
4828	*/
4829
4830	if (!check_fsp_open(conn, req, fsp)) {
4831	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
4832	END_PROFILE(SMBclose);
4833	return;
4834	}
4835
4836	if(fsp->is_directory) {
4837	/*
4838	* Special case - close NT SMB directory handle.
4839	*/
4840	DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
4841	status = close_file(req, fsp, NORMAL_CLOSE);
4842	} else {
4843	time_t t;
4844	/*
4845	* Close ordinary file.
4846	*/
4847
4848	DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
4849	fsp->fh->fd, fsp->fnum,
4850	conn->num_files_open));
4851
4852	/*
4853	* Take care of any time sent in the close.
4854	*/
4855
4856	t = srv_make_unix_date3(req->vwv+1);
4857	set_close_write_time(fsp, convert_time_t_to_timespec(t));
4858
4859	/*
4860	* close_file() returns the unix errno if an error
4861	* was detected on close - normally this is due to
4862	* a disk full error. If not then it was probably an I/O error.
4863	*/
4864
4865	status = close_file(req, fsp, NORMAL_CLOSE);
4866	}
4867
4868	if (!NT_STATUS_IS_OK(status)) {
4869	reply_nterror(req, status);
4870	END_PROFILE(SMBclose);
4871	return;
4872	}
4873
4874	reply_outbuf(req, 0, 0);
4875	END_PROFILE(SMBclose);
4876	return;
4877	}
4878
4879	/****************************************************************************
4880	Reply to a writeclose (Core+ protocol).
4881	****************************************************************************/
4882
4883	void reply_writeclose(struct smb_request *req)
4884	{
4885	connection_struct *conn = req->conn;
4886	size_t numtowrite;
4887	ssize_t nwritten = -1;
4888	NTSTATUS close_status = NT_STATUS_OK;
4889	SMB_OFF_T startpos;
4890	const char *data;
4891	struct timespec mtime;
4892	files_struct *fsp;
4893	struct lock_struct lock;
4894
4895	START_PROFILE(SMBwriteclose);
4896
4897	if (req->wct < 6) {
4898	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4899	END_PROFILE(SMBwriteclose);
4900	return;
4901	}
4902
4903	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4904
4905	if (!check_fsp(conn, req, fsp)) {
4906	END_PROFILE(SMBwriteclose);
4907	return;
4908	}
4909	if (!CHECK_WRITE(fsp)) {
4910	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
4911	END_PROFILE(SMBwriteclose);
4912	return;
4913	}
4914
4915	numtowrite = SVAL(req->vwv+1, 0);
4916	startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4917	mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+4));
4918	data = (const char *)req->buf + 1;
4919
4920	if (!fsp->print_file) {
4921	init_strict_lock_struct(fsp, (uint64_t)req->smbpid,
4922	(uint64_t)startpos, (uint64_t)numtowrite, WRITE_LOCK,
4923	&lock);
4924
4925	if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
4926	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
4927	END_PROFILE(SMBwriteclose);
4928	return;
4929	}
4930	}
4931
4932	nwritten = write_file(req,fsp,data,startpos,numtowrite);
4933
4934	set_close_write_time(fsp, mtime);
4935
4936	/*
4937	* More insanity. W2K only closes the file if writelen > 0.
4938	* JRA.
4939	*/
4940
4941	if (numtowrite) {
4942	DEBUG(3,("reply_writeclose: zero length write doesn't close "
4943	"file %s\n", fsp_str_dbg(fsp)));
4944	close_status = close_file(req, fsp, NORMAL_CLOSE);
4945	}
4946
4947	DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
4948	fsp->fnum, (int)numtowrite, (int)nwritten,
4949	conn->num_files_open));
4950
4951	if(((nwritten == 0) && (numtowrite != 0))\|\|(nwritten < 0)) {
4952	reply_nterror(req, NT_STATUS_DISK_FULL);
4953	goto strict_unlock;
4954	}
4955
4956	if(!NT_STATUS_IS_OK(close_status)) {
4957	reply_nterror(req, close_status);
4958	goto strict_unlock;
4959	}
4960
4961	reply_outbuf(req, 1, 0);
4962
4963	SSVAL(req->outbuf,smb_vwv0,nwritten);
4964
4965	strict_unlock:
4966	if (numtowrite && !fsp->print_file) {
4967	SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
4968	}
4969
4970	END_PROFILE(SMBwriteclose);
4971	return;
4972	}
4973
4974	#undef DBGC_CLASS
4975	#define DBGC_CLASS DBGC_LOCKING
4976
4977	/****************************************************************************
4978	Reply to a lock.
4979	****************************************************************************/
4980
4981	void reply_lock(struct smb_request *req)
4982	{
4983	connection_struct *conn = req->conn;
4984	uint64_t count,offset;
4985	NTSTATUS status;
4986	files_struct *fsp;
4987	struct byte_range_lock *br_lck = NULL;
4988
4989	START_PROFILE(SMBlock);
4990
4991	if (req->wct < 5) {
4992	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4993	END_PROFILE(SMBlock);
4994	return;
4995	}
4996
4997	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4998
4999	if (!check_fsp(conn, req, fsp)) {
5000	END_PROFILE(SMBlock);
5001	return;
5002	}
5003
5004	count = (uint64_t)IVAL(req->vwv+1, 0);
5005	offset = (uint64_t)IVAL(req->vwv+3, 0);
5006
5007	DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
5008	fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
5009
5010	br_lck = do_lock(req->sconn->msg_ctx,
5011	fsp,
5012	(uint64_t)req->smbpid,
5013	count,
5014	offset,
5015	WRITE_LOCK,
5016	WINDOWS_LOCK,
5017	False, /* Non-blocking lock. */
5018	&status,
5019	NULL,
5020	NULL);
5021
5022	TALLOC_FREE(br_lck);
5023
5024	if (NT_STATUS_V(status)) {
5025	reply_nterror(req, status);
5026	END_PROFILE(SMBlock);
5027	return;
5028	}
5029
5030	reply_outbuf(req, 0, 0);
5031
5032	END_PROFILE(SMBlock);
5033	return;
5034	}
5035
5036	/****************************************************************************
5037	Reply to a unlock.
5038	****************************************************************************/
5039
5040	void reply_unlock(struct smb_request *req)
5041	{
5042	connection_struct *conn = req->conn;
5043	uint64_t count,offset;
5044	NTSTATUS status;
5045	files_struct *fsp;
5046
5047	START_PROFILE(SMBunlock);
5048
5049	if (req->wct < 5) {
5050	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5051	END_PROFILE(SMBunlock);
5052	return;
5053	}
5054
5055	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5056
5057	if (!check_fsp(conn, req, fsp)) {
5058	END_PROFILE(SMBunlock);
5059	return;
5060	}
5061
5062	count = (uint64_t)IVAL(req->vwv+1, 0);
5063	offset = (uint64_t)IVAL(req->vwv+3, 0);
5064
5065	status = do_unlock(req->sconn->msg_ctx,
5066	fsp,
5067	(uint64_t)req->smbpid,
5068	count,
5069	offset,
5070	WINDOWS_LOCK);
5071
5072	if (NT_STATUS_V(status)) {
5073	reply_nterror(req, status);
5074	END_PROFILE(SMBunlock);
5075	return;
5076	}
5077
5078	DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
5079	fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
5080
5081	reply_outbuf(req, 0, 0);
5082
5083	END_PROFILE(SMBunlock);
5084	return;
5085	}
5086
5087	#undef DBGC_CLASS
5088	#define DBGC_CLASS DBGC_ALL
5089
5090	/****************************************************************************
5091	Reply to a tdis.
5092	conn POINTER CAN BE NULL HERE !
5093	****************************************************************************/
5094
5095	void reply_tdis(struct smb_request *req)
5096	{
5097	connection_struct *conn = req->conn;
5098	START_PROFILE(SMBtdis);
5099
5100	if (!conn) {
5101	DEBUG(4,("Invalid connection in tdis\n"));
5102	reply_nterror(req, NT_STATUS_NETWORK_NAME_DELETED);
5103	END_PROFILE(SMBtdis);
5104	return;
5105	}
5106
5107	conn->used = False;
5108
5109	close_cnum(conn,req->vuid);
5110	req->conn = NULL;
5111
5112	reply_outbuf(req, 0, 0);
5113	END_PROFILE(SMBtdis);
5114	return;
5115	}
5116
5117	/****************************************************************************
5118	Reply to a echo.
5119	conn POINTER CAN BE NULL HERE !
5120	****************************************************************************/
5121
5122	void reply_echo(struct smb_request *req)
5123	{
5124	connection_struct *conn = req->conn;
5125	struct smb_perfcount_data local_pcd;
5126	struct smb_perfcount_data *cur_pcd;
5127	int smb_reverb;
5128	int seq_num;
5129
5130	START_PROFILE(SMBecho);
5131
5132	smb_init_perfcount_data(&local_pcd);
5133
5134	if (req->wct < 1) {
5135	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5136	END_PROFILE(SMBecho);
5137	return;
5138	}
5139
5140	smb_reverb = SVAL(req->vwv+0, 0);
5141
5142	reply_outbuf(req, 1, req->buflen);
5143
5144	/* copy any incoming data back out */
5145	if (req->buflen > 0) {
5146	memcpy(smb_buf(req->outbuf), req->buf, req->buflen);
5147	}
5148
5149	if (smb_reverb > 100) {
5150	DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
5151	smb_reverb = 100;
5152	}
5153
5154	for (seq_num = 1 ; seq_num <= smb_reverb ; seq_num++) {
5155
5156	/* this makes sure we catch the request pcd */
5157	if (seq_num == smb_reverb) {
5158	cur_pcd = &req->pcd;
5159	} else {
5160	SMB_PERFCOUNT_COPY_CONTEXT(&req->pcd, &local_pcd);
5161	cur_pcd = &local_pcd;
5162	}
5163
5164	SSVAL(req->outbuf,smb_vwv0,seq_num);
5165
5166	show_msg((char *)req->outbuf);
5167	if (!srv_send_smb(req->sconn,
5168	(char *)req->outbuf,
5169	true, req->seqnum+1,
5170	IS_CONN_ENCRYPTED(conn)\|\|req->encrypted,
5171	cur_pcd))
5172	exit_server_cleanly("reply_echo: srv_send_smb failed.");
5173	}
5174
5175	DEBUG(3,("echo %d times\n", smb_reverb));
5176
5177	TALLOC_FREE(req->outbuf);
5178
5179	END_PROFILE(SMBecho);
5180	return;
5181	}
5182
5183	/****************************************************************************
5184	Reply to a printopen.
5185	****************************************************************************/
5186
5187	void reply_printopen(struct smb_request *req)
5188	{
5189	connection_struct *conn = req->conn;
5190	files_struct *fsp;
5191	NTSTATUS status;
5192
5193	START_PROFILE(SMBsplopen);
5194
5195	if (req->wct < 2) {
5196	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5197	END_PROFILE(SMBsplopen);
5198	return;
5199	}
5200
5201	if (!CAN_PRINT(conn)) {
5202	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5203	END_PROFILE(SMBsplopen);
5204	return;
5205	}
5206
5207	status = file_new(req, conn, &fsp);
5208	if(!NT_STATUS_IS_OK(status)) {
5209	reply_nterror(req, status);
5210	END_PROFILE(SMBsplopen);
5211	return;
5212	}
5213
5214	/* Open for exclusive use, write only. */
5215	status = print_spool_open(fsp, NULL, req->vuid);
5216
5217	if (!NT_STATUS_IS_OK(status)) {
5218	file_free(req, fsp);
5219	reply_nterror(req, status);
5220	END_PROFILE(SMBsplopen);
5221	return;
5222	}
5223
5224	reply_outbuf(req, 1, 0);
5225	SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
5226
5227	DEBUG(3,("openprint fd=%d fnum=%d\n",
5228	fsp->fh->fd, fsp->fnum));
5229
5230	END_PROFILE(SMBsplopen);
5231	return;
5232	}
5233
5234	/****************************************************************************
5235	Reply to a printclose.
5236	****************************************************************************/
5237
5238	void reply_printclose(struct smb_request *req)
5239	{
5240	connection_struct *conn = req->conn;
5241	files_struct *fsp;
5242	NTSTATUS status;
5243
5244	START_PROFILE(SMBsplclose);
5245
5246	if (req->wct < 1) {
5247	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5248	END_PROFILE(SMBsplclose);
5249	return;
5250	}
5251
5252	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5253
5254	if (!check_fsp(conn, req, fsp)) {
5255	END_PROFILE(SMBsplclose);
5256	return;
5257	}
5258
5259	if (!CAN_PRINT(conn)) {
5260	reply_force_doserror(req, ERRSRV, ERRerror);
5261	END_PROFILE(SMBsplclose);
5262	return;
5263	}
5264
5265	DEBUG(3,("printclose fd=%d fnum=%d\n",
5266	fsp->fh->fd,fsp->fnum));
5267
5268	status = close_file(req, fsp, NORMAL_CLOSE);
5269
5270	if(!NT_STATUS_IS_OK(status)) {
5271	reply_nterror(req, status);
5272	END_PROFILE(SMBsplclose);
5273	return;
5274	}
5275
5276	reply_outbuf(req, 0, 0);
5277
5278	END_PROFILE(SMBsplclose);
5279	return;
5280	}
5281
5282	/****************************************************************************
5283	Reply to a printqueue.
5284	****************************************************************************/
5285
5286	void reply_printqueue(struct smb_request *req)
5287	{
5288	connection_struct *conn = req->conn;
5289	int max_count;
5290	int start_index;
5291
5292	START_PROFILE(SMBsplretq);
5293
5294	if (req->wct < 2) {
5295	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5296	END_PROFILE(SMBsplretq);
5297	return;
5298	}
5299
5300	max_count = SVAL(req->vwv+0, 0);
5301	start_index = SVAL(req->vwv+1, 0);
5302
5303	/* we used to allow the client to get the cnum wrong, but that
5304	is really quite gross and only worked when there was only
5305	one printer - I think we should now only accept it if they
5306	get it right (tridge) */
5307	if (!CAN_PRINT(conn)) {
5308	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5309	END_PROFILE(SMBsplretq);
5310	return;
5311	}
5312
5313	reply_outbuf(req, 2, 3);
5314	SSVAL(req->outbuf,smb_vwv0,0);
5315	SSVAL(req->outbuf,smb_vwv1,0);
5316	SCVAL(smb_buf(req->outbuf),0,1);
5317	SSVAL(smb_buf(req->outbuf),1,0);
5318
5319	DEBUG(3,("printqueue start_index=%d max_count=%d\n",
5320	start_index, max_count));
5321
5322	{
5323	TALLOC_CTX *mem_ctx = talloc_tos();
5324	NTSTATUS status;
5325	WERROR werr;
5326	const char *sharename = lp_servicename(SNUM(conn));
5327	struct rpc_pipe_client *cli = NULL;
5328	struct dcerpc_binding_handle *b = NULL;
5329	struct policy_handle handle;
5330	struct spoolss_DevmodeContainer devmode_ctr;
5331	union spoolss_JobInfo *info;
5332	uint32_t count;
5333	uint32_t num_to_get;
5334	uint32_t first;
5335	uint32_t i;
5336
5337	ZERO_STRUCT(handle);
5338
5339	status = rpc_pipe_open_interface(conn,
5340	&ndr_table_spoolss.syntax_id,
5341	conn->session_info,
5342	&conn->sconn->client_id,
5343	conn->sconn->msg_ctx,
5344	&cli);
5345	if (!NT_STATUS_IS_OK(status)) {
5346	DEBUG(0, ("reply_printqueue: "
5347	"could not connect to spoolss: %s\n",
5348	nt_errstr(status)));
5349	reply_nterror(req, status);
5350	goto out;
5351	}
5352	b = cli->binding_handle;
5353
5354	ZERO_STRUCT(devmode_ctr);
5355
5356	status = dcerpc_spoolss_OpenPrinter(b, mem_ctx,
5357	sharename,
5358	NULL, devmode_ctr,
5359	SEC_FLAG_MAXIMUM_ALLOWED,
5360	&handle,
5361	&werr);
5362	if (!NT_STATUS_IS_OK(status)) {
5363	reply_nterror(req, status);
5364	goto out;
5365	}
5366	if (!W_ERROR_IS_OK(werr)) {
5367	reply_nterror(req, werror_to_ntstatus(werr));
5368	goto out;
5369	}
5370
5371	werr = rpccli_spoolss_enumjobs(cli, mem_ctx,
5372	&handle,
5373	0, /* firstjob */
5374	0xff, /* numjobs */
5375	2, /* level */
5376	0, /* offered */
5377	&count,
5378	&info);
5379	if (!W_ERROR_IS_OK(werr)) {
5380	reply_nterror(req, werror_to_ntstatus(werr));
5381	goto out;
5382	}
5383
5384	if (max_count > 0) {
5385	first = start_index;
5386	} else {
5387	first = start_index + max_count + 1;
5388	}
5389
5390	if (first >= count) {
5391	num_to_get = first;
5392	} else {
5393	num_to_get = first + MIN(ABS(max_count), count - first);
5394	}
5395
5396	for (i = first; i < num_to_get; i++) {
5397	char blob[28];
5398	char *p = blob;
5399	time_t qtime = spoolss_Time_to_time_t(&info[i].info2.submitted);
5400	int qstatus;
5401	uint16_t qrapjobid = pjobid_to_rap(sharename,
5402	info[i].info2.job_id);
5403
5404	if (info[i].info2.status == JOB_STATUS_PRINTING) {
5405	qstatus = 2;
5406	} else {
5407	qstatus = 3;
5408	}
5409
5410	srv_put_dos_date2(p, 0, qtime);
5411	SCVAL(p, 4, qstatus);
5412	SSVAL(p, 5, qrapjobid);
5413	SIVAL(p, 7, info[i].info2.size);
5414	SCVAL(p, 11, 0);
5415	srvstr_push(blob, req->flags2, p+12,
5416	info[i].info2.notify_name, 16, STR_ASCII);
5417
5418	if (message_push_blob(
5419	&req->outbuf,
5420	data_blob_const(
5421	blob, sizeof(blob))) == -1) {
5422	reply_nterror(req, NT_STATUS_NO_MEMORY);
5423	goto out;
5424	}
5425	}
5426
5427	if (count > 0) {
5428	SSVAL(req->outbuf,smb_vwv0,count);
5429	SSVAL(req->outbuf,smb_vwv1,
5430	(max_count>0?first+count:first-1));
5431	SCVAL(smb_buf(req->outbuf),0,1);
5432	SSVAL(smb_buf(req->outbuf),1,28*count);
5433	}
5434
5435
5436	DEBUG(3, ("%u entries returned in queue\n",
5437	(unsigned)count));
5438
5439	out:
5440	if (b && is_valid_policy_hnd(&handle)) {
5441	dcerpc_spoolss_ClosePrinter(b, mem_ctx, &handle, &werr);
5442	}
5443
5444	}
5445
5446	END_PROFILE(SMBsplretq);
5447	return;
5448	}
5449
5450	/****************************************************************************
5451	Reply to a printwrite.
5452	****************************************************************************/
5453
5454	void reply_printwrite(struct smb_request *req)
5455	{
5456	connection_struct *conn = req->conn;
5457	int numtowrite;
5458	const char *data;
5459	files_struct *fsp;
5460
5461	START_PROFILE(SMBsplwr);
5462
5463	if (req->wct < 1) {
5464	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5465	END_PROFILE(SMBsplwr);
5466	return;
5467	}
5468
5469	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
5470
5471	if (!check_fsp(conn, req, fsp)) {
5472	END_PROFILE(SMBsplwr);
5473	return;
5474	}
5475
5476	if (!fsp->print_file) {
5477	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5478	END_PROFILE(SMBsplwr);
5479	return;
5480	}
5481
5482	if (!CHECK_WRITE(fsp)) {
5483	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5484	END_PROFILE(SMBsplwr);
5485	return;
5486	}
5487
5488	numtowrite = SVAL(req->buf, 1);
5489
5490	if (req->buflen < numtowrite + 3) {
5491	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5492	END_PROFILE(SMBsplwr);
5493	return;
5494	}
5495
5496	data = (const char *)req->buf + 3;
5497
5498	if (write_file(req,fsp,data,(SMB_OFF_T)-1,numtowrite) != numtowrite) {
5499	reply_nterror(req, map_nt_error_from_unix(errno));
5500	END_PROFILE(SMBsplwr);
5501	return;
5502	}
5503
5504	DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
5505
5506	END_PROFILE(SMBsplwr);
5507	return;
5508	}
5509
5510	/****************************************************************************
5511	Reply to a mkdir.
5512	****************************************************************************/
5513
5514	void reply_mkdir(struct smb_request *req)
5515	{
5516	connection_struct *conn = req->conn;
5517	struct smb_filename *smb_dname = NULL;
5518	char *directory = NULL;
5519	NTSTATUS status;
5520	TALLOC_CTX *ctx = talloc_tos();
5521
5522	START_PROFILE(SMBmkdir);
5523
5524	srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5525	STR_TERMINATE, &status);
5526	if (!NT_STATUS_IS_OK(status)) {
5527	reply_nterror(req, status);
5528	goto out;
5529	}
5530
5531	status = filename_convert(ctx, conn,
5532	req->flags2 & FLAGS2_DFS_PATHNAMES,
5533	directory,
5534	0,
5535	NULL,
5536	&smb_dname);
5537	if (!NT_STATUS_IS_OK(status)) {
5538	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5539	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5540	ERRSRV, ERRbadpath);
5541	goto out;
5542	}
5543	reply_nterror(req, status);
5544	goto out;
5545	}
5546
5547	status = create_directory(conn, req, smb_dname);
5548
5549	DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
5550
5551	if (!NT_STATUS_IS_OK(status)) {
5552
5553	if (!use_nt_status()
5554	&& NT_STATUS_EQUAL(status,
5555	NT_STATUS_OBJECT_NAME_COLLISION)) {
5556	/*
5557	* Yes, in the DOS error code case we get a
5558	* ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
5559	* samba4 torture test.
5560	*/
5561	status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
5562	}
5563
5564	reply_nterror(req, status);
5565	goto out;
5566	}
5567
5568	reply_outbuf(req, 0, 0);
5569
5570	DEBUG(3, ("mkdir %s\n", smb_dname->base_name));
5571	out:
5572	TALLOC_FREE(smb_dname);
5573	END_PROFILE(SMBmkdir);
5574	return;
5575	}
5576
5577	/****************************************************************************
5578	Reply to a rmdir.
5579	****************************************************************************/
5580
5581	void reply_rmdir(struct smb_request *req)
5582	{
5583	connection_struct *conn = req->conn;
5584	struct smb_filename *smb_dname = NULL;
5585	char *directory = NULL;
5586	NTSTATUS status;
5587	TALLOC_CTX *ctx = talloc_tos();
5588	files_struct *fsp = NULL;
5589	int info = 0;
5590	struct smbd_server_connection *sconn = req->sconn;
5591
5592	START_PROFILE(SMBrmdir);
5593
5594	srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5595	STR_TERMINATE, &status);
5596	if (!NT_STATUS_IS_OK(status)) {
5597	reply_nterror(req, status);
5598	goto out;
5599	}
5600
5601	status = filename_convert(ctx, conn,
5602	req->flags2 & FLAGS2_DFS_PATHNAMES,
5603	directory,
5604	0,
5605	NULL,
5606	&smb_dname);
5607	if (!NT_STATUS_IS_OK(status)) {
5608	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5609	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5610	ERRSRV, ERRbadpath);
5611	goto out;
5612	}
5613	reply_nterror(req, status);
5614	goto out;
5615	}
5616
5617	if (is_ntfs_stream_smb_fname(smb_dname)) {
5618	reply_nterror(req, NT_STATUS_NOT_A_DIRECTORY);
5619	goto out;
5620	}
5621
5622	status = SMB_VFS_CREATE_FILE(
5623	conn, /* conn */
5624	req, /* req */
5625	0, /* root_dir_fid */
5626	smb_dname, /* fname */
5627	DELETE_ACCESS, /* access_mask */
5628	(FILE_SHARE_READ \| FILE_SHARE_WRITE \| /* share_access */
5629	FILE_SHARE_DELETE),
5630	FILE_OPEN, /* create_disposition*/
5631	FILE_DIRECTORY_FILE, /* create_options */
5632	FILE_ATTRIBUTE_DIRECTORY, /* file_attributes */
5633	0, /* oplock_request */
5634	0, /* allocation_size */
5635	0, /* private_flags */
5636	NULL, /* sd */
5637	NULL, /* ea_list */
5638	&fsp, /* result */
5639	&info); /* pinfo */
5640
5641	if (!NT_STATUS_IS_OK(status)) {
5642	if (open_was_deferred(req->mid)) {
5643	/* We have re-scheduled this call. */
5644	goto out;
5645	}
5646	reply_nterror(req, status);
5647	goto out;
5648	}
5649
5650	status = can_set_delete_on_close(fsp, FILE_ATTRIBUTE_DIRECTORY);
5651	if (!NT_STATUS_IS_OK(status)) {
5652	close_file(req, fsp, ERROR_CLOSE);
5653	reply_nterror(req, status);
5654	goto out;
5655	}
5656
5657	if (!set_delete_on_close(fsp, true, &conn->session_info->utok)) {
5658	close_file(req, fsp, ERROR_CLOSE);
5659	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
5660	goto out;
5661	}
5662
5663	status = close_file(req, fsp, NORMAL_CLOSE);
5664	if (!NT_STATUS_IS_OK(status)) {
5665	reply_nterror(req, status);
5666	} else {
5667	reply_outbuf(req, 0, 0);
5668	}
5669
5670	dptr_closepath(sconn, smb_dname->base_name, req->smbpid);
5671
5672	DEBUG(3, ("rmdir %s\n", smb_fname_str_dbg(smb_dname)));
5673	out:
5674	TALLOC_FREE(smb_dname);
5675	END_PROFILE(SMBrmdir);
5676	return;
5677	}
5678
5679	/*******************************************************************
5680	Resolve wildcards in a filename rename.
5681	********************************************************************/
5682
5683	static bool resolve_wildcards(TALLOC_CTX *ctx,
5684	const char *name1,
5685	const char *name2,
5686	char **pp_newname)
5687	{
5688	char *name2_copy = NULL;
5689	char *root1 = NULL;
5690	char *root2 = NULL;
5691	char *ext1 = NULL;
5692	char *ext2 = NULL;
5693	char p,p2, pname1, pname2;
5694
5695	name2_copy = talloc_strdup(ctx, name2);
5696	if (!name2_copy) {
5697	return False;
5698	}
5699
5700	pname1 = strrchr_m(name1,'/');
5701	pname2 = strrchr_m(name2_copy,'/');
5702
5703	if (!pname1 \|\| !pname2) {
5704	return False;
5705	}
5706
5707	/* Truncate the copy of name2 at the last '/' */
5708	*pname2 = '\0';
5709
5710	/* Now go past the '/' */
5711	pname1++;
5712	pname2++;
5713
5714	root1 = talloc_strdup(ctx, pname1);
5715	root2 = talloc_strdup(ctx, pname2);
5716
5717	if (!root1 \|\| !root2) {
5718	return False;
5719	}
5720
5721	p = strrchr_m(root1,'.');
5722	if (p) {
5723	*p = 0;
5724	ext1 = talloc_strdup(ctx, p+1);
5725	} else {
5726	ext1 = talloc_strdup(ctx, "");
5727	}
5728	p = strrchr_m(root2,'.');
5729	if (p) {
5730	*p = 0;
5731	ext2 = talloc_strdup(ctx, p+1);
5732	} else {
5733	ext2 = talloc_strdup(ctx, "");
5734	}
5735
5736	if (!ext1 \|\| !ext2) {
5737	return False;
5738	}
5739
5740	p = root1;
5741	p2 = root2;
5742	while (*p2) {
5743	if (*p2 == '?') {
5744	/* Hmmm. Should this be mb-aware ? */
5745	p2 = p;
5746	p2++;
5747	} else if (p2 == '') {
5748	*p2 = '\0';
5749	root2 = talloc_asprintf(ctx, "%s%s",
5750	root2,
5751	p);
5752	if (!root2) {
5753	return False;
5754	}
5755	break;
5756	} else {
5757	p2++;
5758	}
5759	if (*p) {
5760	p++;
5761	}
5762	}
5763
5764	p = ext1;
5765	p2 = ext2;
5766	while (*p2) {
5767	if (*p2 == '?') {
5768	/* Hmmm. Should this be mb-aware ? */
5769	p2 = p;
5770	p2++;
5771	} else if (p2 == '') {
5772	*p2 = '\0';
5773	ext2 = talloc_asprintf(ctx, "%s%s",
5774	ext2,
5775	p);
5776	if (!ext2) {
5777	return False;
5778	}
5779	break;
5780	} else {
5781	p2++;
5782	}
5783	if (*p) {
5784	p++;
5785	}
5786	}
5787
5788	if (*ext2) {
5789	*pp_newname = talloc_asprintf(ctx, "%s/%s.%s",
5790	name2_copy,
5791	root2,
5792	ext2);
5793	} else {
5794	*pp_newname = talloc_asprintf(ctx, "%s/%s",
5795	name2_copy,
5796	root2);
5797	}
5798
5799	if (!*pp_newname) {
5800	return False;
5801	}
5802
5803	return True;
5804	}
5805
5806	/****************************************************************************
5807	Ensure open files have their names updated. Updated to notify other smbd's
5808	asynchronously.
5809	****************************************************************************/
5810
5811	static void rename_open_files(connection_struct *conn,
5812	struct share_mode_lock *lck,
5813	uint32_t orig_name_hash,
5814	const struct smb_filename *smb_fname_dst)
5815	{
5816	files_struct *fsp;
5817	bool did_rename = False;
5818	NTSTATUS status;
5819	uint32_t new_name_hash;
5820
5821	for(fsp = file_find_di_first(conn->sconn, lck->id); fsp;
5822	fsp = file_find_di_next(fsp)) {
5823	/* fsp_name is a relative path under the fsp. To change this for other
5824	sharepaths we need to manipulate relative paths. */
5825	/* TODO - create the absolute path and manipulate the newname
5826	relative to the sharepath. */
5827	if (!strequal(fsp->conn->connectpath, conn->connectpath)) {
5828	continue;
5829	}
5830	if (fsp->name_hash != orig_name_hash) {
5831	continue;
5832	}
5833	DEBUG(10, ("rename_open_files: renaming file fnum %d "
5834	"(file_id %s) from %s -> %s\n", fsp->fnum,
5835	file_id_string_tos(&fsp->file_id), fsp_str_dbg(fsp),
5836	smb_fname_str_dbg(smb_fname_dst)));
5837
5838	status = fsp_set_smb_fname(fsp, smb_fname_dst);
5839	if (NT_STATUS_IS_OK(status)) {
5840	did_rename = True;
5841	new_name_hash = fsp->name_hash;
5842	}
5843	}
5844
5845	if (!did_rename) {
5846	DEBUG(10, ("rename_open_files: no open files on file_id %s "
5847	"for %s\n", file_id_string_tos(&lck->id),
5848	smb_fname_str_dbg(smb_fname_dst)));
5849	}
5850
5851	/* Send messages to all smbd's (not ourself) that the name has changed. */
5852	rename_share_filename(conn->sconn->msg_ctx, lck, conn->connectpath,
5853	orig_name_hash, new_name_hash,
5854	smb_fname_dst);
5855
5856	}
5857
5858	/****************************************************************************
5859	We need to check if the source path is a parent directory of the destination
5860	(ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
5861	refuse the rename with a sharing violation. Under UNIX the above call can
5862	succeed if /foo/bar/baz is a symlink to another area in the share. We
5863	probably need to check that the client is a Windows one before disallowing
5864	this as a UNIX client (one with UNIX extensions) can know the source is a
5865	symlink and make this decision intelligently. Found by an excellent bug
5866	report from <AndyLiebman@aol.com>.
5867	****************************************************************************/
5868
5869	static bool rename_path_prefix_equal(const struct smb_filename *smb_fname_src,
5870	const struct smb_filename *smb_fname_dst)
5871	{
5872	const char *psrc = smb_fname_src->base_name;
5873	const char *pdst = smb_fname_dst->base_name;
5874	size_t slen;
5875
5876	if (psrc[0] == '.' && psrc[1] == '/') {
5877	psrc += 2;
5878	}
5879	if (pdst[0] == '.' && pdst[1] == '/') {
5880	pdst += 2;
5881	}
5882	if ((slen = strlen(psrc)) > strlen(pdst)) {
5883	return False;
5884	}
5885	return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
5886	}
5887
5888	/*
5889	* Do the notify calls from a rename
5890	*/
5891
5892	static void notify_rename(connection_struct *conn, bool is_dir,
5893	const struct smb_filename *smb_fname_src,
5894	const struct smb_filename *smb_fname_dst)
5895	{
5896	char *parent_dir_src = NULL;
5897	char *parent_dir_dst = NULL;
5898	uint32 mask;
5899
5900	mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
5901	: FILE_NOTIFY_CHANGE_FILE_NAME;
5902
5903	if (!parent_dirname(talloc_tos(), smb_fname_src->base_name,
5904	&parent_dir_src, NULL) \|\|
5905	!parent_dirname(talloc_tos(), smb_fname_dst->base_name,
5906	&parent_dir_dst, NULL)) {
5907	goto out;
5908	}
5909
5910	if (strcmp(parent_dir_src, parent_dir_dst) == 0) {
5911	notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask,
5912	smb_fname_src->base_name);
5913	notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask,
5914	smb_fname_dst->base_name);
5915	}
5916	else {
5917	notify_fname(conn, NOTIFY_ACTION_REMOVED, mask,
5918	smb_fname_src->base_name);
5919	notify_fname(conn, NOTIFY_ACTION_ADDED, mask,
5920	smb_fname_dst->base_name);
5921	}
5922
5923	/* this is a strange one. w2k3 gives an additional event for
5924	CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
5925	files, but not directories */
5926	if (!is_dir) {
5927	notify_fname(conn, NOTIFY_ACTION_MODIFIED,
5928	FILE_NOTIFY_CHANGE_ATTRIBUTES
5929	\|FILE_NOTIFY_CHANGE_CREATION,
5930	smb_fname_dst->base_name);
5931	}
5932	out:
5933	TALLOC_FREE(parent_dir_src);
5934	TALLOC_FREE(parent_dir_dst);
5935	}
5936
5937	/****************************************************************************
5938	Rename an open file - given an fsp.
5939	****************************************************************************/
5940
5941	NTSTATUS rename_internals_fsp(connection_struct *conn,
5942	files_struct *fsp,
5943	const struct smb_filename *smb_fname_dst_in,
5944	uint32 attrs,
5945	bool replace_if_exists)
5946	{
5947	TALLOC_CTX *ctx = talloc_tos();
5948	struct smb_filename *smb_fname_dst = NULL;
5949	NTSTATUS status = NT_STATUS_OK;
5950	struct share_mode_lock *lck = NULL;
5951	bool dst_exists, old_is_stream, new_is_stream;
5952
5953	status = check_name(conn, smb_fname_dst_in->base_name);
5954	if (!NT_STATUS_IS_OK(status)) {
5955	return status;
5956	}
5957
5958	/* Make a copy of the dst smb_fname structs */
5959
5960	status = copy_smb_filename(ctx, smb_fname_dst_in, &smb_fname_dst);
5961	if (!NT_STATUS_IS_OK(status)) {
5962	goto out;
5963	}
5964
5965	/*
5966	* Check for special case with case preserving and not
5967	* case sensitive. If the old last component differs from the original
5968	* last component only by case, then we should allow
5969	* the rename (user is trying to change the case of the
5970	* filename).
5971	*/
5972	if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
5973	strequal(fsp->fsp_name->base_name, smb_fname_dst->base_name) &&
5974	strequal(fsp->fsp_name->stream_name, smb_fname_dst->stream_name)) {
5975	char *last_slash;
5976	char *fname_dst_lcomp_base_mod = NULL;
5977	struct smb_filename *smb_fname_orig_lcomp = NULL;
5978
5979	/*
5980	* Get the last component of the destination name.
5981	*/
5982	last_slash = strrchr_m(smb_fname_dst->base_name, '/');
5983	if (last_slash) {
5984	fname_dst_lcomp_base_mod = talloc_strdup(ctx, last_slash + 1);
5985	} else {
5986	fname_dst_lcomp_base_mod = talloc_strdup(ctx, smb_fname_dst->base_name);
5987	}
5988	if (!fname_dst_lcomp_base_mod) {
5989	status = NT_STATUS_NO_MEMORY;
5990	goto out;
5991	}
5992
5993	/*
5994	* Create an smb_filename struct using the original last
5995	* component of the destination.
5996	*/
5997	status = create_synthetic_smb_fname_split(ctx,
5998	smb_fname_dst->original_lcomp, NULL,
5999	&smb_fname_orig_lcomp);
6000	if (!NT_STATUS_IS_OK(status)) {
6001	TALLOC_FREE(fname_dst_lcomp_base_mod);
6002	goto out;
6003	}
6004
6005	/* If the base names only differ by case, use original. */
6006	if(!strcsequal(fname_dst_lcomp_base_mod,
6007	smb_fname_orig_lcomp->base_name)) {
6008	char *tmp;
6009	/*
6010	* Replace the modified last component with the
6011	* original.
6012	*/
6013	if (last_slash) {
6014	last_slash = '\0'; / Truncate at the '/' */
6015	tmp = talloc_asprintf(smb_fname_dst,
6016	"%s/%s",
6017	smb_fname_dst->base_name,
6018	smb_fname_orig_lcomp->base_name);
6019	} else {
6020	tmp = talloc_asprintf(smb_fname_dst,
6021	"%s",
6022	smb_fname_orig_lcomp->base_name);
6023	}
6024	if (tmp == NULL) {
6025	status = NT_STATUS_NO_MEMORY;
6026	TALLOC_FREE(fname_dst_lcomp_base_mod);
6027	TALLOC_FREE(smb_fname_orig_lcomp);
6028	goto out;
6029	}
6030	TALLOC_FREE(smb_fname_dst->base_name);
6031	smb_fname_dst->base_name = tmp;
6032	}
6033
6034	/* If the stream_names only differ by case, use original. */
6035	if(!strcsequal(smb_fname_dst->stream_name,
6036	smb_fname_orig_lcomp->stream_name)) {
6037	char *tmp = NULL;
6038	/* Use the original stream. */
6039	tmp = talloc_strdup(smb_fname_dst,
6040	smb_fname_orig_lcomp->stream_name);
6041	if (tmp == NULL) {
6042	status = NT_STATUS_NO_MEMORY;
6043	TALLOC_FREE(fname_dst_lcomp_base_mod);
6044	TALLOC_FREE(smb_fname_orig_lcomp);
6045	goto out;
6046	}
6047	TALLOC_FREE(smb_fname_dst->stream_name);
6048	smb_fname_dst->stream_name = tmp;
6049	}
6050	TALLOC_FREE(fname_dst_lcomp_base_mod);
6051	TALLOC_FREE(smb_fname_orig_lcomp);
6052	}
6053
6054	/*
6055	* If the src and dest names are identical - including case,
6056	* don't do the rename, just return success.
6057	*/
6058
6059	if (strcsequal(fsp->fsp_name->base_name, smb_fname_dst->base_name) &&
6060	strcsequal(fsp->fsp_name->stream_name,
6061	smb_fname_dst->stream_name)) {
6062	DEBUG(3, ("rename_internals_fsp: identical names in rename %s "
6063	"- returning success\n",
6064	smb_fname_str_dbg(smb_fname_dst)));
6065	status = NT_STATUS_OK;
6066	goto out;
6067	}
6068
6069	old_is_stream = is_ntfs_stream_smb_fname(fsp->fsp_name);
6070	new_is_stream = is_ntfs_stream_smb_fname(smb_fname_dst);
6071
6072	/* Return the correct error code if both names aren't streams. */
6073	if (!old_is_stream && new_is_stream) {
6074	status = NT_STATUS_OBJECT_NAME_INVALID;
6075	goto out;
6076	}
6077
6078	if (old_is_stream && !new_is_stream) {
6079	status = NT_STATUS_INVALID_PARAMETER;
6080	goto out;
6081	}
6082
6083	dst_exists = SMB_VFS_STAT(conn, smb_fname_dst) == 0;
6084
6085	if(!replace_if_exists && dst_exists) {
6086	DEBUG(3, ("rename_internals_fsp: dest exists doing rename "
6087	"%s -> %s\n", smb_fname_str_dbg(fsp->fsp_name),
6088	smb_fname_str_dbg(smb_fname_dst)));
6089	status = NT_STATUS_OBJECT_NAME_COLLISION;
6090	goto out;
6091	}
6092
6093	if (dst_exists) {
6094	struct file_id fileid = vfs_file_id_from_sbuf(conn,
6095	&smb_fname_dst->st);
6096	files_struct *dst_fsp = file_find_di_first(conn->sconn,
6097	fileid);
6098	/* The file can be open when renaming a stream */
6099	if (dst_fsp && !new_is_stream) {
6100	DEBUG(3, ("rename_internals_fsp: Target file open\n"));
6101	status = NT_STATUS_ACCESS_DENIED;
6102	goto out;
6103	}
6104	}
6105
6106	/* Ensure we have a valid stat struct for the source. */
6107	status = vfs_stat_fsp(fsp);
6108	if (!NT_STATUS_IS_OK(status)) {
6109	goto out;
6110	}
6111
6112	status = can_rename(conn, fsp, attrs);
6113
6114	if (!NT_STATUS_IS_OK(status)) {
6115	DEBUG(3, ("rename_internals_fsp: Error %s rename %s -> %s\n",
6116	nt_errstr(status), smb_fname_str_dbg(fsp->fsp_name),
6117	smb_fname_str_dbg(smb_fname_dst)));
6118	if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
6119	status = NT_STATUS_ACCESS_DENIED;
6120	goto out;
6121	}
6122
6123	if (rename_path_prefix_equal(fsp->fsp_name, smb_fname_dst)) {
6124	status = NT_STATUS_ACCESS_DENIED;
6125	}
6126
6127	lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
6128	NULL);
6129
6130	/*
6131	* We have the file open ourselves, so not being able to get the
6132	* corresponding share mode lock is a fatal error.
6133	*/
6134
6135	SMB_ASSERT(lck != NULL);
6136
6137	if(SMB_VFS_RENAME(conn, fsp->fsp_name, smb_fname_dst) == 0) {
6138	uint32 create_options = fsp->fh->private_options;
6139
6140	DEBUG(3, ("rename_internals_fsp: succeeded doing rename on "
6141	"%s -> %s\n", smb_fname_str_dbg(fsp->fsp_name),
6142	smb_fname_str_dbg(smb_fname_dst)));
6143
6144	if (!lp_posix_pathnames() &&
6145	(lp_map_archive(SNUM(conn)) \|\|
6146	lp_store_dos_attributes(SNUM(conn)))) {
6147	/* We must set the archive bit on the newly
6148	renamed file. */
6149	if (SMB_VFS_STAT(conn, smb_fname_dst) == 0) {
6150	uint32_t old_dosmode = dos_mode(conn,
6151	smb_fname_dst);
6152	file_set_dosmode(conn,
6153	smb_fname_dst,
6154	old_dosmode \| FILE_ATTRIBUTE_ARCHIVE,
6155	NULL,
6156	true);
6157	}
6158	}
6159
6160	notify_rename(conn, fsp->is_directory, fsp->fsp_name,
6161	smb_fname_dst);
6162
6163	rename_open_files(conn, lck, fsp->name_hash, smb_fname_dst);
6164
6165	/*
6166	* A rename acts as a new file create w.r.t. allowing an initial delete
6167	* on close, probably because in Windows there is a new handle to the
6168	* new file. If initial delete on close was requested but not
6169	* originally set, we need to set it here. This is probably not 100% correct,
6170	* but will work for the CIFSFS client which in non-posix mode
6171	* depends on these semantics. JRA.
6172	*/
6173
6174	if (create_options & FILE_DELETE_ON_CLOSE) {
6175	status = can_set_delete_on_close(fsp, 0);
6176
6177	if (NT_STATUS_IS_OK(status)) {
6178	/* Note that here we set the inital delete on close flag,
6179	* not the regular one. The magic gets handled in close. */
6180	fsp->initial_delete_on_close = True;
6181	}
6182	}
6183	TALLOC_FREE(lck);
6184	status = NT_STATUS_OK;
6185	goto out;
6186	}
6187
6188	TALLOC_FREE(lck);
6189
6190	if (errno == ENOTDIR \|\| errno == EISDIR) {
6191	status = NT_STATUS_OBJECT_NAME_COLLISION;
6192	} else {
6193	status = map_nt_error_from_unix(errno);
6194	}
6195
6196	DEBUG(3, ("rename_internals_fsp: Error %s rename %s -> %s\n",
6197	nt_errstr(status), smb_fname_str_dbg(fsp->fsp_name),
6198	smb_fname_str_dbg(smb_fname_dst)));
6199
6200	out:
6201	TALLOC_FREE(smb_fname_dst);
6202
6203	return status;
6204	}
6205
6206	/****************************************************************************
6207	The guts of the rename command, split out so it may be called by the NT SMB
6208	code.
6209	****************************************************************************/
6210
6211	NTSTATUS rename_internals(TALLOC_CTX *ctx,
6212	connection_struct *conn,
6213	struct smb_request *req,
6214	struct smb_filename *smb_fname_src,
6215	struct smb_filename *smb_fname_dst,
6216	uint32 attrs,
6217	bool replace_if_exists,
6218	bool src_has_wild,
6219	bool dest_has_wild,
6220	uint32_t access_mask)
6221	{
6222	char *fname_src_dir = NULL;
6223	char *fname_src_mask = NULL;
6224	int count=0;
6225	NTSTATUS status = NT_STATUS_OK;
6226	struct smb_Dir *dir_hnd = NULL;
6227	const char *dname = NULL;
6228	char *talloced = NULL;
6229	long offset = 0;
6230	int create_options = 0;
6231	bool posix_pathnames = lp_posix_pathnames();
6232
6233	/*
6234	* Split the old name into directory and last component
6235	* strings. Note that unix_convert may have stripped off a
6236	* leading ./ from both name and newname if the rename is
6237	* at the root of the share. We need to make sure either both
6238	* name and newname contain a / character or neither of them do
6239	* as this is checked in resolve_wildcards().
6240	*/
6241
6242	/* Split up the directory from the filename/mask. */
6243	status = split_fname_dir_mask(ctx, smb_fname_src->base_name,
6244	&fname_src_dir, &fname_src_mask);
6245	if (!NT_STATUS_IS_OK(status)) {
6246	status = NT_STATUS_NO_MEMORY;
6247	goto out;
6248	}
6249
6250	/*
6251	* We should only check the mangled cache
6252	* here if unix_convert failed. This means
6253	* that the path in 'mask' doesn't exist
6254	* on the file system and so we need to look
6255	* for a possible mangle. This patch from
6256	* Tine Smukavec <valentin.smukavec@hermes.si>.
6257	*/
6258
6259	if (!VALID_STAT(smb_fname_src->st) &&
6260	mangle_is_mangled(fname_src_mask, conn->params)) {
6261	char *new_mask = NULL;
6262	mangle_lookup_name_from_8_3(ctx, fname_src_mask, &new_mask,
6263	conn->params);
6264	if (new_mask) {
6265	TALLOC_FREE(fname_src_mask);
6266	fname_src_mask = new_mask;
6267	}
6268	}
6269
6270	if (!src_has_wild) {
6271	files_struct *fsp;
6272
6273	/*
6274	* Only one file needs to be renamed. Append the mask back
6275	* onto the directory.
6276	*/
6277	TALLOC_FREE(smb_fname_src->base_name);
6278	if (ISDOT(fname_src_dir)) {
6279	/* Ensure we use canonical names on open. */
6280	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6281	"%s",
6282	fname_src_mask);
6283	} else {
6284	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6285	"%s/%s",
6286	fname_src_dir,
6287	fname_src_mask);
6288	}
6289	if (!smb_fname_src->base_name) {
6290	status = NT_STATUS_NO_MEMORY;
6291	goto out;
6292	}
6293
6294	DEBUG(3, ("rename_internals: case_sensitive = %d, "
6295	"case_preserve = %d, short case preserve = %d, "
6296	"directory = %s, newname = %s, "
6297	"last_component_dest = %s\n",
6298	conn->case_sensitive, conn->case_preserve,
6299	conn->short_case_preserve,
6300	smb_fname_str_dbg(smb_fname_src),
6301	smb_fname_str_dbg(smb_fname_dst),
6302	smb_fname_dst->original_lcomp));
6303
6304	/* The dest name still may have wildcards. */
6305	if (dest_has_wild) {
6306	char *fname_dst_mod = NULL;
6307	if (!resolve_wildcards(smb_fname_dst,
6308	smb_fname_src->base_name,
6309	smb_fname_dst->base_name,
6310	&fname_dst_mod)) {
6311	DEBUG(6, ("rename_internals: resolve_wildcards "
6312	"%s %s failed\n",
6313	smb_fname_src->base_name,
6314	smb_fname_dst->base_name));
6315	status = NT_STATUS_NO_MEMORY;
6316	goto out;
6317	}
6318	TALLOC_FREE(smb_fname_dst->base_name);
6319	smb_fname_dst->base_name = fname_dst_mod;
6320	}
6321
6322	ZERO_STRUCT(smb_fname_src->st);
6323	if (posix_pathnames) {
6324	SMB_VFS_LSTAT(conn, smb_fname_src);
6325	} else {
6326	SMB_VFS_STAT(conn, smb_fname_src);
6327	}
6328
6329	if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
6330	create_options \|= FILE_DIRECTORY_FILE;
6331	}
6332
6333	status = SMB_VFS_CREATE_FILE(
6334	conn, /* conn */
6335	req, /* req */
6336	0, /* root_dir_fid */
6337	smb_fname_src, /* fname */
6338	access_mask, /* access_mask */
6339	(FILE_SHARE_READ \| /* share_access */
6340	FILE_SHARE_WRITE),
6341	FILE_OPEN, /* create_disposition*/
6342	create_options, /* create_options */
6343	posix_pathnames ? FILE_FLAG_POSIX_SEMANTICS\|0777 : 0, /* file_attributes */
6344	0, /* oplock_request */
6345	0, /* allocation_size */
6346	0, /* private_flags */
6347	NULL, /* sd */
6348	NULL, /* ea_list */
6349	&fsp, /* result */
6350	NULL); /* pinfo */
6351
6352	if (!NT_STATUS_IS_OK(status)) {
6353	DEBUG(3, ("Could not open rename source %s: %s\n",
6354	smb_fname_str_dbg(smb_fname_src),
6355	nt_errstr(status)));
6356	goto out;
6357	}
6358
6359	status = rename_internals_fsp(conn, fsp, smb_fname_dst,
6360	attrs, replace_if_exists);
6361
6362	close_file(req, fsp, NORMAL_CLOSE);
6363
6364	DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
6365	nt_errstr(status), smb_fname_str_dbg(smb_fname_src),
6366	smb_fname_str_dbg(smb_fname_dst)));
6367
6368	goto out;
6369	}
6370
6371	/*
6372	* Wildcards - process each file that matches.
6373	*/
6374	if (strequal(fname_src_mask, "????????.???")) {
6375	TALLOC_FREE(fname_src_mask);
6376	fname_src_mask = talloc_strdup(ctx, "*");
6377	if (!fname_src_mask) {
6378	status = NT_STATUS_NO_MEMORY;
6379	goto out;
6380	}
6381	}
6382
6383	status = check_name(conn, fname_src_dir);
6384	if (!NT_STATUS_IS_OK(status)) {
6385	goto out;
6386	}
6387
6388	dir_hnd = OpenDir(talloc_tos(), conn, fname_src_dir, fname_src_mask,
6389	attrs);
6390	if (dir_hnd == NULL) {
6391	status = map_nt_error_from_unix(errno);
6392	goto out;
6393	}
6394
6395	status = NT_STATUS_NO_SUCH_FILE;
6396	/*
6397	* Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
6398	* - gentest fix. JRA
6399	*/
6400
6401	while ((dname = ReadDirName(dir_hnd, &offset, &smb_fname_src->st,
6402	&talloced))) {
6403	files_struct *fsp = NULL;
6404	char *destname = NULL;
6405	bool sysdir_entry = False;
6406
6407	/* Quick check for "." and ".." */
6408	if (ISDOT(dname) \|\| ISDOTDOT(dname)) {
6409	if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
6410	sysdir_entry = True;
6411	} else {
6412	TALLOC_FREE(talloced);
6413	continue;
6414	}
6415	}
6416
6417	if (!is_visible_file(conn, fname_src_dir, dname,
6418	&smb_fname_src->st, false)) {
6419	TALLOC_FREE(talloced);
6420	continue;
6421	}
6422
6423	if(!mask_match(dname, fname_src_mask, conn->case_sensitive)) {
6424	TALLOC_FREE(talloced);
6425	continue;
6426	}
6427
6428	if (sysdir_entry) {
6429	status = NT_STATUS_OBJECT_NAME_INVALID;
6430	break;
6431	}
6432
6433	TALLOC_FREE(smb_fname_src->base_name);
6434	if (ISDOT(fname_src_dir)) {
6435	/* Ensure we use canonical names on open. */
6436	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6437	"%s",
6438	dname);
6439	} else {
6440	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6441	"%s/%s",
6442	fname_src_dir,
6443	dname);
6444	}
6445	if (!smb_fname_src->base_name) {
6446	status = NT_STATUS_NO_MEMORY;
6447	goto out;
6448	}
6449
6450	if (!resolve_wildcards(ctx, smb_fname_src->base_name,
6451	smb_fname_dst->base_name,
6452	&destname)) {
6453	DEBUG(6, ("resolve_wildcards %s %s failed\n",
6454	smb_fname_src->base_name, destname));
6455	TALLOC_FREE(talloced);
6456	continue;
6457	}
6458	if (!destname) {
6459	status = NT_STATUS_NO_MEMORY;
6460	goto out;
6461	}
6462
6463	TALLOC_FREE(smb_fname_dst->base_name);
6464	smb_fname_dst->base_name = destname;
6465
6466	ZERO_STRUCT(smb_fname_src->st);
6467	if (posix_pathnames) {
6468	SMB_VFS_LSTAT(conn, smb_fname_src);
6469	} else {
6470	SMB_VFS_STAT(conn, smb_fname_src);
6471	}
6472
6473	create_options = 0;
6474
6475	if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
6476	create_options \|= FILE_DIRECTORY_FILE;
6477	}
6478
6479	status = SMB_VFS_CREATE_FILE(
6480	conn, /* conn */
6481	req, /* req */
6482	0, /* root_dir_fid */
6483	smb_fname_src, /* fname */
6484	access_mask, /* access_mask */
6485	(FILE_SHARE_READ \| /* share_access */
6486	FILE_SHARE_WRITE),
6487	FILE_OPEN, /* create_disposition*/
6488	create_options, /* create_options */
6489	posix_pathnames ? FILE_FLAG_POSIX_SEMANTICS\|0777 : 0, /* file_attributes */
6490	0, /* oplock_request */
6491	0, /* allocation_size */
6492	0, /* private_flags */
6493	NULL, /* sd */
6494	NULL, /* ea_list */
6495	&fsp, /* result */
6496	NULL); /* pinfo */
6497
6498	if (!NT_STATUS_IS_OK(status)) {
6499	DEBUG(3,("rename_internals: SMB_VFS_CREATE_FILE "
6500	"returned %s rename %s -> %s\n",
6501	nt_errstr(status),
6502	smb_fname_str_dbg(smb_fname_src),
6503	smb_fname_str_dbg(smb_fname_dst)));
6504	break;
6505	}
6506
6507	smb_fname_dst->original_lcomp = talloc_strdup(smb_fname_dst,
6508	dname);
6509	if (!smb_fname_dst->original_lcomp) {
6510	status = NT_STATUS_NO_MEMORY;
6511	goto out;
6512	}
6513
6514	status = rename_internals_fsp(conn, fsp, smb_fname_dst,
6515	attrs, replace_if_exists);
6516
6517	close_file(req, fsp, NORMAL_CLOSE);
6518
6519	if (!NT_STATUS_IS_OK(status)) {
6520	DEBUG(3, ("rename_internals_fsp returned %s for "
6521	"rename %s -> %s\n", nt_errstr(status),
6522	smb_fname_str_dbg(smb_fname_src),
6523	smb_fname_str_dbg(smb_fname_dst)));
6524	break;
6525	}
6526
6527	count++;
6528
6529	DEBUG(3,("rename_internals: doing rename on %s -> "
6530	"%s\n", smb_fname_str_dbg(smb_fname_src),
6531	smb_fname_str_dbg(smb_fname_src)));
6532	TALLOC_FREE(talloced);
6533	}
6534	TALLOC_FREE(dir_hnd);
6535
6536	if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
6537	status = map_nt_error_from_unix(errno);
6538	}
6539
6540	out:
6541	TALLOC_FREE(talloced);
6542	TALLOC_FREE(fname_src_dir);
6543	TALLOC_FREE(fname_src_mask);
6544	return status;
6545	}
6546
6547	/****************************************************************************
6548	Reply to a mv.
6549	****************************************************************************/
6550
6551	void reply_mv(struct smb_request *req)
6552	{
6553	connection_struct *conn = req->conn;
6554	char *name = NULL;
6555	char *newname = NULL;
6556	const char *p;
6557	uint32 attrs;
6558	NTSTATUS status;
6559	bool src_has_wcard = False;
6560	bool dest_has_wcard = False;
6561	TALLOC_CTX *ctx = talloc_tos();
6562	struct smb_filename *smb_fname_src = NULL;
6563	struct smb_filename *smb_fname_dst = NULL;
6564	bool stream_rename = false;
6565
6566	START_PROFILE(SMBmv);
6567
6568	if (req->wct < 1) {
6569	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6570	goto out;
6571	}
6572
6573	attrs = SVAL(req->vwv+0, 0);
6574
6575	p = (const char *)req->buf + 1;
6576	p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
6577	&status, &src_has_wcard);
6578	if (!NT_STATUS_IS_OK(status)) {
6579	reply_nterror(req, status);
6580	goto out;
6581	}
6582	p++;
6583	p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
6584	&status, &dest_has_wcard);
6585	if (!NT_STATUS_IS_OK(status)) {
6586	reply_nterror(req, status);
6587	goto out;
6588	}
6589
6590	if (!lp_posix_pathnames()) {
6591	/* The newname must begin with a ':' if the
6592	name contains a ':'. */
6593	if (strchr_m(name, ':')) {
6594	if (newname[0] != ':') {
6595	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6596	goto out;
6597	}
6598	stream_rename = true;
6599	}
6600	}
6601
6602	status = filename_convert(ctx,
6603	conn,
6604	req->flags2 & FLAGS2_DFS_PATHNAMES,
6605	name,
6606	UCF_COND_ALLOW_WCARD_LCOMP,
6607	&src_has_wcard,
6608	&smb_fname_src);
6609
6610	if (!NT_STATUS_IS_OK(status)) {
6611	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6612	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6613	ERRSRV, ERRbadpath);
6614	goto out;
6615	}
6616	reply_nterror(req, status);
6617	goto out;
6618	}
6619
6620	status = filename_convert(ctx,
6621	conn,
6622	req->flags2 & FLAGS2_DFS_PATHNAMES,
6623	newname,
6624	UCF_COND_ALLOW_WCARD_LCOMP \| UCF_SAVE_LCOMP,
6625	&dest_has_wcard,
6626	&smb_fname_dst);
6627
6628	if (!NT_STATUS_IS_OK(status)) {
6629	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6630	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6631	ERRSRV, ERRbadpath);
6632	goto out;
6633	}
6634	reply_nterror(req, status);
6635	goto out;
6636	}
6637
6638	if (stream_rename) {
6639	/* smb_fname_dst->base_name must be the same as
6640	smb_fname_src->base_name. */
6641	TALLOC_FREE(smb_fname_dst->base_name);
6642	smb_fname_dst->base_name = talloc_strdup(smb_fname_dst,
6643	smb_fname_src->base_name);
6644	if (!smb_fname_dst->base_name) {
6645	reply_nterror(req, NT_STATUS_NO_MEMORY);
6646	goto out;
6647	}
6648	}
6649
6650	DEBUG(3,("reply_mv : %s -> %s\n", smb_fname_str_dbg(smb_fname_src),
6651	smb_fname_str_dbg(smb_fname_dst)));
6652
6653	status = rename_internals(ctx, conn, req, smb_fname_src, smb_fname_dst,
6654	attrs, False, src_has_wcard, dest_has_wcard,
6655	DELETE_ACCESS);
6656	if (!NT_STATUS_IS_OK(status)) {
6657	if (open_was_deferred(req->mid)) {
6658	/* We have re-scheduled this call. */
6659	goto out;
6660	}
6661	reply_nterror(req, status);
6662	goto out;
6663	}
6664
6665	reply_outbuf(req, 0, 0);
6666	out:
6667	TALLOC_FREE(smb_fname_src);
6668	TALLOC_FREE(smb_fname_dst);
6669	END_PROFILE(SMBmv);
6670	return;
6671	}
6672
6673	/*******************************************************************
6674	Copy a file as part of a reply_copy.
6675	******************************************************************/
6676
6677	/*
6678	* TODO: check error codes on all callers
6679	*/
6680
6681	NTSTATUS copy_file(TALLOC_CTX *ctx,
6682	connection_struct *conn,
6683	struct smb_filename *smb_fname_src,
6684	struct smb_filename *smb_fname_dst,
6685	int ofun,
6686	int count,
6687	bool target_is_directory)
6688	{
6689	struct smb_filename *smb_fname_dst_tmp = NULL;
6690	SMB_OFF_T ret=-1;
6691	files_struct fsp1,fsp2;
6692	uint32 dosattrs;
6693	uint32 new_create_disposition;
6694	NTSTATUS status;
6695
6696
6697	status = copy_smb_filename(ctx, smb_fname_dst, &smb_fname_dst_tmp);
6698	if (!NT_STATUS_IS_OK(status)) {
6699	return status;
6700	}
6701
6702	/*
6703	* If the target is a directory, extract the last component from the
6704	* src filename and append it to the dst filename
6705	*/
6706	if (target_is_directory) {
6707	const char *p;
6708
6709	/* dest/target can't be a stream if it's a directory. */
6710	SMB_ASSERT(smb_fname_dst->stream_name == NULL);
6711
6712	p = strrchr_m(smb_fname_src->base_name,'/');
6713	if (p) {
6714	p++;
6715	} else {
6716	p = smb_fname_src->base_name;
6717	}
6718	smb_fname_dst_tmp->base_name =
6719	talloc_asprintf_append(smb_fname_dst_tmp->base_name, "/%s",
6720	p);
6721	if (!smb_fname_dst_tmp->base_name) {
6722	status = NT_STATUS_NO_MEMORY;
6723	goto out;
6724	}
6725	}
6726
6727	status = vfs_file_exist(conn, smb_fname_src);
6728	if (!NT_STATUS_IS_OK(status)) {
6729	goto out;
6730	}
6731
6732	if (!target_is_directory && count) {
6733	new_create_disposition = FILE_OPEN;
6734	} else {
6735	if (!map_open_params_to_ntcreate(smb_fname_dst_tmp, 0, ofun,
6736	NULL, NULL,
6737	&new_create_disposition,
6738	NULL,
6739	NULL)) {
6740	status = NT_STATUS_INVALID_PARAMETER;
6741	goto out;
6742	}
6743	}
6744
6745	/* Open the src file for reading. */
6746	status = SMB_VFS_CREATE_FILE(
6747	conn, /* conn */
6748	NULL, /* req */
6749	0, /* root_dir_fid */
6750	smb_fname_src, /* fname */
6751	FILE_GENERIC_READ, /* access_mask */
6752	FILE_SHARE_READ \| FILE_SHARE_WRITE, /* share_access */
6753	FILE_OPEN, /* create_disposition*/
6754	0, /* create_options */
6755	FILE_ATTRIBUTE_NORMAL, /* file_attributes */
6756	INTERNAL_OPEN_ONLY, /* oplock_request */
6757	0, /* allocation_size */
6758	0, /* private_flags */
6759	NULL, /* sd */
6760	NULL, /* ea_list */
6761	&fsp1, /* result */
6762	NULL); /* psbuf */
6763
6764	if (!NT_STATUS_IS_OK(status)) {
6765	goto out;
6766	}
6767
6768	dosattrs = dos_mode(conn, smb_fname_src);
6769
6770	if (SMB_VFS_STAT(conn, smb_fname_dst_tmp) == -1) {
6771	ZERO_STRUCTP(&smb_fname_dst_tmp->st);
6772	}
6773
6774	/* Open the dst file for writing. */
6775	status = SMB_VFS_CREATE_FILE(
6776	conn, /* conn */
6777	NULL, /* req */
6778	0, /* root_dir_fid */
6779	smb_fname_dst, /* fname */
6780	FILE_GENERIC_WRITE, /* access_mask */
6781	FILE_SHARE_READ \| FILE_SHARE_WRITE, /* share_access */
6782	new_create_disposition, /* create_disposition*/
6783	0, /* create_options */
6784	dosattrs, /* file_attributes */
6785	INTERNAL_OPEN_ONLY, /* oplock_request */
6786	0, /* allocation_size */
6787	0, /* private_flags */
6788	NULL, /* sd */
6789	NULL, /* ea_list */
6790	&fsp2, /* result */
6791	NULL); /* psbuf */
6792
6793	if (!NT_STATUS_IS_OK(status)) {
6794	close_file(NULL, fsp1, ERROR_CLOSE);
6795	goto out;
6796	}
6797
6798	if (ofun & OPENX_FILE_EXISTS_OPEN) {
6799	ret = SMB_VFS_LSEEK(fsp2, 0, SEEK_END);
6800	if (ret == -1) {
6801	DEBUG(0, ("error - vfs lseek returned error %s\n",
6802	strerror(errno)));
6803	status = map_nt_error_from_unix(errno);
6804	close_file(NULL, fsp1, ERROR_CLOSE);
6805	close_file(NULL, fsp2, ERROR_CLOSE);
6806	goto out;
6807	}
6808	}
6809
6810	/* Do the actual copy. */
6811	if (smb_fname_src->st.st_ex_size) {
6812	ret = vfs_transfer_file(fsp1, fsp2, smb_fname_src->st.st_ex_size);
6813	} else {
6814	ret = 0;
6815	}
6816
6817	close_file(NULL, fsp1, NORMAL_CLOSE);
6818
6819	/* Ensure the modtime is set correctly on the destination file. */
6820	set_close_write_time(fsp2, smb_fname_src->st.st_ex_mtime);
6821
6822	/*
6823	* As we are opening fsp1 read-only we only expect
6824	* an error on close on fsp2 if we are out of space.
6825	* Thus we don't look at the error return from the
6826	* close of fsp1.
6827	*/
6828	status = close_file(NULL, fsp2, NORMAL_CLOSE);
6829
6830	if (!NT_STATUS_IS_OK(status)) {
6831	goto out;
6832	}
6833
6834	if (ret != (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
6835	status = NT_STATUS_DISK_FULL;
6836	goto out;
6837	}
6838
6839	status = NT_STATUS_OK;
6840
6841	out:
6842	TALLOC_FREE(smb_fname_dst_tmp);
6843	return status;
6844	}
6845
6846	/****************************************************************************
6847	Reply to a file copy.
6848	****************************************************************************/
6849
6850	void reply_copy(struct smb_request *req)
6851	{
6852	connection_struct *conn = req->conn;
6853	struct smb_filename *smb_fname_src = NULL;
6854	struct smb_filename *smb_fname_dst = NULL;
6855	char *fname_src = NULL;
6856	char *fname_dst = NULL;
6857	char *fname_src_mask = NULL;
6858	char *fname_src_dir = NULL;
6859	const char *p;
6860	int count=0;
6861	int error = ERRnoaccess;
6862	int tid2;
6863	int ofun;
6864	int flags;
6865	bool target_is_directory=False;
6866	bool source_has_wild = False;
6867	bool dest_has_wild = False;
6868	NTSTATUS status;
6869	TALLOC_CTX *ctx = talloc_tos();
6870
6871	START_PROFILE(SMBcopy);
6872
6873	if (req->wct < 3) {
6874	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6875	goto out;
6876	}
6877
6878	tid2 = SVAL(req->vwv+0, 0);
6879	ofun = SVAL(req->vwv+1, 0);
6880	flags = SVAL(req->vwv+2, 0);
6881
6882	p = (const char *)req->buf;
6883	p += srvstr_get_path_req_wcard(ctx, req, &fname_src, p, STR_TERMINATE,
6884	&status, &source_has_wild);
6885	if (!NT_STATUS_IS_OK(status)) {
6886	reply_nterror(req, status);
6887	goto out;
6888	}
6889	p += srvstr_get_path_req_wcard(ctx, req, &fname_dst, p, STR_TERMINATE,
6890	&status, &dest_has_wild);
6891	if (!NT_STATUS_IS_OK(status)) {
6892	reply_nterror(req, status);
6893	goto out;
6894	}
6895
6896	DEBUG(3,("reply_copy : %s -> %s\n", fname_src, fname_dst));
6897
6898	if (tid2 != conn->cnum) {
6899	/* can't currently handle inter share copies XXXX */
6900	DEBUG(3,("Rejecting inter-share copy\n"));
6901	reply_nterror(req, NT_STATUS_BAD_DEVICE_TYPE);
6902	goto out;
6903	}
6904
6905	status = filename_convert(ctx, conn,
6906	req->flags2 & FLAGS2_DFS_PATHNAMES,
6907	fname_src,
6908	UCF_COND_ALLOW_WCARD_LCOMP,
6909	&source_has_wild,
6910	&smb_fname_src);
6911	if (!NT_STATUS_IS_OK(status)) {
6912	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6913	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6914	ERRSRV, ERRbadpath);
6915	goto out;
6916	}
6917	reply_nterror(req, status);
6918	goto out;
6919	}
6920
6921	status = filename_convert(ctx, conn,
6922	req->flags2 & FLAGS2_DFS_PATHNAMES,
6923	fname_dst,
6924	UCF_COND_ALLOW_WCARD_LCOMP,
6925	&dest_has_wild,
6926	&smb_fname_dst);
6927	if (!NT_STATUS_IS_OK(status)) {
6928	if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6929	reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6930	ERRSRV, ERRbadpath);
6931	goto out;
6932	}
6933	reply_nterror(req, status);
6934	goto out;
6935	}
6936
6937	target_is_directory = VALID_STAT_OF_DIR(smb_fname_dst->st);
6938
6939	if ((flags&1) && target_is_directory) {
6940	reply_nterror(req, NT_STATUS_NO_SUCH_FILE);
6941	goto out;
6942	}
6943
6944	if ((flags&2) && !target_is_directory) {
6945	reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND);
6946	goto out;
6947	}
6948
6949	if ((flags&(1<<5)) && VALID_STAT_OF_DIR(smb_fname_src->st)) {
6950	/* wants a tree copy! XXXX */
6951	DEBUG(3,("Rejecting tree copy\n"));
6952	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6953	goto out;
6954	}
6955
6956	/* Split up the directory from the filename/mask. */
6957	status = split_fname_dir_mask(ctx, smb_fname_src->base_name,
6958	&fname_src_dir, &fname_src_mask);
6959	if (!NT_STATUS_IS_OK(status)) {
6960	reply_nterror(req, NT_STATUS_NO_MEMORY);
6961	goto out;
6962	}
6963
6964	/*
6965	* We should only check the mangled cache
6966	* here if unix_convert failed. This means
6967	* that the path in 'mask' doesn't exist
6968	* on the file system and so we need to look
6969	* for a possible mangle. This patch from
6970	* Tine Smukavec <valentin.smukavec@hermes.si>.
6971	*/
6972	if (!VALID_STAT(smb_fname_src->st) &&
6973	mangle_is_mangled(fname_src_mask, conn->params)) {
6974	char *new_mask = NULL;
6975	mangle_lookup_name_from_8_3(ctx, fname_src_mask,
6976	&new_mask, conn->params);
6977
6978	/* Use demangled name if one was successfully found. */
6979	if (new_mask) {
6980	TALLOC_FREE(fname_src_mask);
6981	fname_src_mask = new_mask;
6982	}
6983	}
6984
6985	if (!source_has_wild) {
6986
6987	/*
6988	* Only one file needs to be copied. Append the mask back onto
6989	* the directory.
6990	*/
6991	TALLOC_FREE(smb_fname_src->base_name);
6992	if (ISDOT(fname_src_dir)) {
6993	/* Ensure we use canonical names on open. */
6994	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6995	"%s",
6996	fname_src_mask);
6997	} else {
6998	smb_fname_src->base_name = talloc_asprintf(smb_fname_src,
6999	"%s/%s",
7000	fname_src_dir,
7001	fname_src_mask);
7002	}
7003	if (!smb_fname_src->base_name) {
7004	reply_nterror(req, NT_STATUS_NO_MEMORY);
7005	goto out;
7006	}
7007
7008	if (dest_has_wild) {
7009	char *fname_dst_mod = NULL;
7010	if (!resolve_wildcards(smb_fname_dst,
7011	smb_fname_src->base_name,
7012	smb_fname_dst->base_name,
7013	&fname_dst_mod)) {
7014	reply_nterror(req, NT_STATUS_NO_MEMORY);
7015	goto out;
7016	}
7017	TALLOC_FREE(smb_fname_dst->base_name);
7018	smb_fname_dst->base_name = fname_dst_mod;
7019	}
7020
7021	status = check_name(conn, smb_fname_src->base_name);
7022	if (!NT_STATUS_IS_OK(status)) {
7023	reply_nterror(req, status);
7024	goto out;
7025	}
7026
7027	status = check_name(conn, smb_fname_dst->base_name);
7028	if (!NT_STATUS_IS_OK(status)) {
7029	reply_nterror(req, status);
7030	goto out;
7031	}
7032
7033	status = copy_file(ctx, conn, smb_fname_src, smb_fname_dst,
7034	ofun, count, target_is_directory);
7035
7036	if(!NT_STATUS_IS_OK(status)) {
7037	reply_nterror(req, status);
7038	goto out;
7039	} else {
7040	count++;
7041	}
7042	} else {
7043	struct smb_Dir *dir_hnd = NULL;
7044	const char *dname = NULL;
7045	char *talloced = NULL;
7046	long offset = 0;
7047
7048	/*
7049	* There is a wildcard that requires us to actually read the
7050	* src dir and copy each file matching the mask to the dst.
7051	* Right now streams won't be copied, but this could
7052	* presumably be added with a nested loop for reach dir entry.
7053	*/
7054	SMB_ASSERT(!smb_fname_src->stream_name);
7055	SMB_ASSERT(!smb_fname_dst->stream_name);
7056
7057	smb_fname_src->stream_name = NULL;
7058	smb_fname_dst->stream_name = NULL;
7059
7060	if (strequal(fname_src_mask,"????????.???")) {
7061	TALLOC_FREE(fname_src_mask);
7062	fname_src_mask = talloc_strdup(ctx, "*");
7063	if (!fname_src_mask) {
7064	reply_nterror(req, NT_STATUS_NO_MEMORY);
7065	goto out;
7066	}
7067	}
7068
7069	status = check_name(conn, fname_src_dir);
7070	if (!NT_STATUS_IS_OK(status)) {
7071	reply_nterror(req, status);
7072	goto out;
7073	}
7074
7075	dir_hnd = OpenDir(ctx, conn, fname_src_dir, fname_src_mask, 0);
7076	if (dir_hnd == NULL) {
7077	status = map_nt_error_from_unix(errno);
7078	reply_nterror(req, status);
7079	goto out;
7080	}
7081
7082	error = ERRbadfile;
7083
7084	/* Iterate over the src dir copying each entry to the dst. */
7085	while ((dname = ReadDirName(dir_hnd, &offset,
7086	&smb_fname_src->st, &talloced))) {
7087	char *destname = NULL;
7088
7089	if (ISDOT(dname) \|\| ISDOTDOT(dname)) {
7090	TALLOC_FREE(talloced);
7091	continue;
7092	}
7093
7094	if (!is_visible_file(conn, fname_src_dir, dname,
7095	&smb_fname_src->st, false)) {
7096	TALLOC_FREE(talloced);
7097	continue;
7098	}
7099
7100	if(!mask_match(dname, fname_src_mask,
7101	conn->case_sensitive)) {
7102	TALLOC_FREE(talloced);
7103	continue;
7104	}
7105
7106	error = ERRnoaccess;
7107
7108	/* Get the src smb_fname struct setup. */
7109	TALLOC_FREE(smb_fname_src->base_name);
7110	if (ISDOT(fname_src_dir)) {
7111	/* Ensure we use canonical names on open. */
7112	smb_fname_src->base_name =
7113	talloc_asprintf(smb_fname_src, "%s",
7114	dname);
7115	} else {
7116	smb_fname_src->base_name =
7117	talloc_asprintf(smb_fname_src, "%s/%s",
7118	fname_src_dir, dname);
7119	}
7120
7121	if (!smb_fname_src->base_name) {
7122	TALLOC_FREE(dir_hnd);
7123	TALLOC_FREE(talloced);
7124	reply_nterror(req, NT_STATUS_NO_MEMORY);
7125	goto out;
7126	}
7127
7128	if (!resolve_wildcards(ctx, smb_fname_src->base_name,
7129	smb_fname_dst->base_name,
7130	&destname)) {
7131	TALLOC_FREE(talloced);
7132	continue;
7133	}
7134	if (!destname) {
7135	TALLOC_FREE(dir_hnd);
7136	TALLOC_FREE(talloced);
7137	reply_nterror(req, NT_STATUS_NO_MEMORY);
7138	goto out;
7139	}
7140
7141	TALLOC_FREE(smb_fname_dst->base_name);
7142	smb_fname_dst->base_name = destname;
7143
7144	status = check_name(conn, smb_fname_src->base_name);
7145	if (!NT_STATUS_IS_OK(status)) {
7146	TALLOC_FREE(dir_hnd);
7147	TALLOC_FREE(talloced);
7148	reply_nterror(req, status);
7149	goto out;
7150	}
7151
7152	status = check_name(conn, smb_fname_dst->base_name);
7153	if (!NT_STATUS_IS_OK(status)) {
7154	TALLOC_FREE(dir_hnd);
7155	TALLOC_FREE(talloced);
7156	reply_nterror(req, status);
7157	goto out;
7158	}
7159
7160	DEBUG(3,("reply_copy : doing copy on %s -> %s\n",
7161	smb_fname_src->base_name,
7162	smb_fname_dst->base_name));
7163
7164	status = copy_file(ctx, conn, smb_fname_src,
7165	smb_fname_dst, ofun, count,
7166	target_is_directory);
7167	if (NT_STATUS_IS_OK(status)) {
7168	count++;
7169	}
7170
7171	TALLOC_FREE(talloced);
7172	}
7173	TALLOC_FREE(dir_hnd);
7174	}
7175
7176	if (count == 0) {
7177	reply_nterror(req, dos_to_ntstatus(ERRDOS, error));
7178	goto out;
7179	}
7180
7181	reply_outbuf(req, 1, 0);
7182	SSVAL(req->outbuf,smb_vwv0,count);
7183	out:
7184	TALLOC_FREE(smb_fname_src);
7185	TALLOC_FREE(smb_fname_dst);
7186	TALLOC_FREE(fname_src);
7187	TALLOC_FREE(fname_dst);
7188	TALLOC_FREE(fname_src_mask);
7189	TALLOC_FREE(fname_src_dir);
7190
7191	END_PROFILE(SMBcopy);
7192	return;
7193	}
7194
7195	#undef DBGC_CLASS
7196	#define DBGC_CLASS DBGC_LOCKING
7197
7198	/****************************************************************************
7199	Get a lock pid, dealing with large count requests.
7200	****************************************************************************/
7201
7202	uint64_t get_lock_pid(const uint8_t *data, int data_offset,
7203	bool large_file_format)
7204	{
7205	if(!large_file_format)
7206	return (uint64_t)SVAL(data,SMB_LPID_OFFSET(data_offset));
7207	else
7208	return (uint64_t)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
7209	}
7210
7211	/****************************************************************************
7212	Get a lock count, dealing with large count requests.
7213	****************************************************************************/
7214
7215	uint64_t get_lock_count(const uint8_t *data, int data_offset,
7216	bool large_file_format)
7217	{
7218	uint64_t count = 0;
7219
7220	if(!large_file_format) {
7221	count = (uint64_t)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
7222	} else {
7223
7224	#if defined(HAVE_LONGLONG)
7225	count = (((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) \|
7226	((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
7227	#else /* HAVE_LONGLONG */
7228
7229	/*
7230	* NT4.x seems to be broken in that it sends large file (64 bit)
7231	* lockingX calls even if the CAP_LARGE_FILES was not
7232	* negotiated. For boxes without large unsigned ints truncate the
7233	* lock count by dropping the top 32 bits.
7234	*/
7235
7236	if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
7237	DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
7238	(unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
7239	(unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
7240	SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
7241	}
7242
7243	count = (uint64_t)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
7244	#endif /* HAVE_LONGLONG */
7245	}
7246
7247	return count;
7248	}
7249
7250	#if !defined(HAVE_LONGLONG)
7251	/****************************************************************************
7252	Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
7253	****************************************************************************/
7254
7255	static uint32 map_lock_offset(uint32 high, uint32 low)
7256	{
7257	unsigned int i;
7258	uint32 mask = 0;
7259	uint32 highcopy = high;
7260
7261	/*
7262	* Try and find out how many significant bits there are in high.
7263	*/
7264
7265	for(i = 0; highcopy; i++)
7266	highcopy >>= 1;
7267
7268	/*
7269	* We use 31 bits not 32 here as POSIX
7270	* lock offsets may not be negative.
7271	*/
7272
7273	mask = (~0) << (31 - i);
7274
7275	if(low & mask)
7276	return 0; /* Fail. */
7277
7278	high <<= (31 - i);
7279
7280	return (high\|low);
7281	}
7282	#endif /* !defined(HAVE_LONGLONG) */
7283
7284	/****************************************************************************
7285	Get a lock offset, dealing with large offset requests.
7286	****************************************************************************/
7287
7288	uint64_t get_lock_offset(const uint8_t *data, int data_offset,
7289	bool large_file_format, bool *err)
7290	{
7291	uint64_t offset = 0;
7292
7293	*err = False;
7294
7295	if(!large_file_format) {
7296	offset = (uint64_t)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
7297	} else {
7298
7299	#if defined(HAVE_LONGLONG)
7300	offset = (((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) \|
7301	((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
7302	#else /* HAVE_LONGLONG */
7303
7304	/*
7305	* NT4.x seems to be broken in that it sends large file (64 bit)
7306	* lockingX calls even if the CAP_LARGE_FILES was not
7307	* negotiated. For boxes without large unsigned ints mangle the
7308	* lock offset by mapping the top 32 bits onto the lower 32.
7309	*/
7310
7311	if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
7312	uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
7313	uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
7314	uint32 new_low = 0;
7315
7316	if((new_low = map_lock_offset(high, low)) == 0) {
7317	*err = True;
7318	return (uint64_t)-1;
7319	}
7320
7321	DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
7322	(unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
7323	SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
7324	SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
7325	}
7326
7327	offset = (uint64_t)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
7328	#endif /* HAVE_LONGLONG */
7329	}
7330
7331	return offset;
7332	}
7333
7334	NTSTATUS smbd_do_locking(struct smb_request *req,
7335	files_struct *fsp,
7336	uint8_t type,
7337	int32_t timeout,
7338	uint16_t num_ulocks,
7339	struct smbd_lock_element *ulocks,
7340	uint16_t num_locks,
7341	struct smbd_lock_element *locks,
7342	bool *async)
7343	{
7344	connection_struct *conn = req->conn;
7345	int i;
7346	NTSTATUS status = NT_STATUS_OK;
7347
7348	*async = false;
7349
7350	/* Data now points at the beginning of the list
7351	of smb_unlkrng structs */
7352	for(i = 0; i < (int)num_ulocks; i++) {
7353	struct smbd_lock_element *e = &ulocks[i];
7354
7355	DEBUG(10,("smbd_do_locking: unlock start=%.0f, len=%.0f for "
7356	"pid %u, file %s\n",
7357	(double)e->offset,
7358	(double)e->count,
7359	(unsigned int)e->smblctx,
7360	fsp_str_dbg(fsp)));
7361
7362	if (e->brltype != UNLOCK_LOCK) {
7363	/* this can only happen with SMB2 */
7364	return NT_STATUS_INVALID_PARAMETER;
7365	}
7366
7367	status = do_unlock(req->sconn->msg_ctx,
7368	fsp,
7369	e->smblctx,
7370	e->count,
7371	e->offset,
7372	WINDOWS_LOCK);
7373
7374	DEBUG(10, ("smbd_do_locking: unlock returned %s\n",
7375	nt_errstr(status)));
7376
7377	if (!NT_STATUS_IS_OK(status)) {
7378	return status;
7379	}
7380	}
7381
7382	/* Setup the timeout in seconds. */
7383
7384	if (!lp_blocking_locks(SNUM(conn))) {
7385	timeout = 0;
7386	}
7387
7388	/* Data now points at the beginning of the list
7389	of smb_lkrng structs */
7390
7391	for(i = 0; i < (int)num_locks; i++) {
7392	struct smbd_lock_element *e = &locks[i];
7393
7394	DEBUG(10,("smbd_do_locking: lock start=%.0f, len=%.0f for smblctx "
7395	"%llu, file %s timeout = %d\n",
7396	(double)e->offset,
7397	(double)e->count,
7398	(unsigned long long)e->smblctx,
7399	fsp_str_dbg(fsp),
7400	(int)timeout));
7401
7402	if (type & LOCKING_ANDX_CANCEL_LOCK) {
7403	struct blocking_lock_record *blr = NULL;
7404
7405	if (num_locks > 1) {
7406	/*
7407	* MS-CIFS (2.2.4.32.1) states that a cancel is honored if and only
7408	* if the lock vector contains one entry. When given mutliple cancel
7409	* requests in a single PDU we expect the server to return an
7410	* error. Windows servers seem to accept the request but only
7411	* cancel the first lock.
7412	* JRA - Do what Windows does (tm) :-).
7413	*/
7414
7415	#if 0
7416	/* MS-CIFS (2.2.4.32.1) behavior. */
7417	return NT_STATUS_DOS(ERRDOS,
7418	ERRcancelviolation);
7419	#else
7420	/* Windows behavior. */
7421	if (i != 0) {
7422	DEBUG(10,("smbd_do_locking: ignoring subsequent "
7423	"cancel request\n"));
7424	continue;
7425	}
7426	#endif
7427	}
7428
7429	if (lp_blocking_locks(SNUM(conn))) {
7430
7431	/* Schedule a message to ourselves to
7432	remove the blocking lock record and
7433	return the right error. */
7434
7435	blr = blocking_lock_cancel_smb1(fsp,
7436	e->smblctx,
7437	e->offset,
7438	e->count,
7439	WINDOWS_LOCK,
7440	type,
7441	NT_STATUS_FILE_LOCK_CONFLICT);
7442	if (blr == NULL) {
7443	return NT_STATUS_DOS(
7444	ERRDOS,
7445	ERRcancelviolation);
7446	}
7447	}
7448	/* Remove a matching pending lock. */
7449	status = do_lock_cancel(fsp,
7450	e->smblctx,
7451	e->count,
7452	e->offset,
7453	WINDOWS_LOCK,
7454	blr);
7455	} else {
7456	bool blocking_lock = timeout ? true : false;
7457	bool defer_lock = false;
7458	struct byte_range_lock *br_lck;
7459	uint64_t block_smblctx;
7460
7461	br_lck = do_lock(req->sconn->msg_ctx,
7462	fsp,
7463	e->smblctx,
7464	e->count,
7465	e->offset,
7466	e->brltype,
7467	WINDOWS_LOCK,
7468	blocking_lock,
7469	&status,
7470	&block_smblctx,
7471	NULL);
7472
7473	if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
7474	/* Windows internal resolution for blocking locks seems
7475	to be about 200ms... Don't wait for less than that. JRA. */
7476	if (timeout != -1 && timeout < lp_lock_spin_time()) {
7477	timeout = lp_lock_spin_time();
7478	}
7479	defer_lock = true;
7480	}
7481
7482	/* If a lock sent with timeout of zero would fail, and
7483	* this lock has been requested multiple times,
7484	* according to brl_lock_failed() we convert this
7485	* request to a blocking lock with a timeout of between
7486	* 150 - 300 milliseconds.
7487	*
7488	* If lp_lock_spin_time() has been set to 0, we skip
7489	* this blocking retry and fail immediately.
7490	*
7491	* Replacement for do_lock_spin(). JRA. */
7492
7493	if (!req->sconn->using_smb2 &&
7494	br_lck && lp_blocking_locks(SNUM(conn)) &&
7495	lp_lock_spin_time() && !blocking_lock &&
7496	NT_STATUS_EQUAL((status),
7497	NT_STATUS_FILE_LOCK_CONFLICT))
7498	{
7499	defer_lock = true;
7500	timeout = lp_lock_spin_time();
7501	}
7502
7503	if (br_lck && defer_lock) {
7504	/*
7505	* A blocking lock was requested. Package up
7506	* this smb into a queued request and push it
7507	* onto the blocking lock queue.
7508	*/
7509	if(push_blocking_lock_request(br_lck,
7510	req,
7511	fsp,
7512	timeout,
7513	i,
7514	e->smblctx,
7515	e->brltype,
7516	WINDOWS_LOCK,
7517	e->offset,
7518	e->count,
7519	block_smblctx)) {
7520	TALLOC_FREE(br_lck);
7521	*async = true;
7522	return NT_STATUS_OK;
7523	}
7524	}
7525
7526	TALLOC_FREE(br_lck);
7527	}
7528
7529	if (!NT_STATUS_IS_OK(status)) {
7530	break;
7531	}
7532	}
7533
7534	/* If any of the above locks failed, then we must unlock
7535	all of the previous locks (X/Open spec). */
7536
7537	if (num_locks != 0 && !NT_STATUS_IS_OK(status)) {
7538
7539	if (type & LOCKING_ANDX_CANCEL_LOCK) {
7540	i = -1; /* we want to skip the for loop */
7541	}
7542
7543	/*
7544	* Ensure we don't do a remove on the lock that just failed,
7545	* as under POSIX rules, if we have a lock already there, we
7546	* will delete it (and we shouldn't) .....
7547	*/
7548	for(i--; i >= 0; i--) {
7549	struct smbd_lock_element *e = &locks[i];
7550
7551	do_unlock(req->sconn->msg_ctx,
7552	fsp,
7553	e->smblctx,
7554	e->count,
7555	e->offset,
7556	WINDOWS_LOCK);
7557	}
7558	return status;
7559	}
7560
7561	DEBUG(3, ("smbd_do_locking: fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
7562	fsp->fnum, (unsigned int)type, num_locks, num_ulocks));
7563
7564	return NT_STATUS_OK;
7565	}
7566
7567	/****************************************************************************
7568	Reply to a lockingX request.
7569	****************************************************************************/
7570
7571	void reply_lockingX(struct smb_request *req)
7572	{
7573	connection_struct *conn = req->conn;
7574	files_struct *fsp;
7575	unsigned char locktype;
7576	unsigned char oplocklevel;
7577	uint16 num_ulocks;
7578	uint16 num_locks;
7579	int32 lock_timeout;
7580	int i;
7581	const uint8_t *data;
7582	bool large_file_format;
7583	bool err;
7584	NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
7585	struct smbd_lock_element *ulocks;
7586	struct smbd_lock_element *locks;
7587	bool async = false;
7588
7589	START_PROFILE(SMBlockingX);
7590
7591	if (req->wct < 8) {
7592	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7593	END_PROFILE(SMBlockingX);
7594	return;
7595	}
7596
7597	fsp = file_fsp(req, SVAL(req->vwv+2, 0));
7598	locktype = CVAL(req->vwv+3, 0);
7599	oplocklevel = CVAL(req->vwv+3, 1);
7600	num_ulocks = SVAL(req->vwv+6, 0);
7601	num_locks = SVAL(req->vwv+7, 0);
7602	lock_timeout = IVAL(req->vwv+4, 0);
7603	large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
7604
7605	if (!check_fsp(conn, req, fsp)) {
7606	END_PROFILE(SMBlockingX);
7607	return;
7608	}
7609
7610	data = req->buf;
7611
7612	if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
7613	/* we don't support these - and CANCEL_LOCK makes w2k
7614	and XP reboot so I don't really want to be
7615	compatible! (tridge) */
7616	reply_force_doserror(req, ERRDOS, ERRnoatomiclocks);
7617	END_PROFILE(SMBlockingX);
7618	return;
7619	}
7620
7621	/* Check if this is an oplock break on a file
7622	we have granted an oplock on.
7623	*/
7624	if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
7625	/* Client can insist on breaking to none. */
7626	bool break_to_none = (oplocklevel == 0);
7627	bool result;
7628
7629	DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
7630	"for fnum = %d\n", (unsigned int)oplocklevel,
7631	fsp->fnum ));
7632
7633	/*
7634	* Make sure we have granted an exclusive or batch oplock on
7635	* this file.
7636	*/
7637
7638	if (fsp->oplock_type == 0) {
7639
7640	/* The Samba4 nbench simulator doesn't understand
7641	the difference between break to level2 and break
7642	to none from level2 - it sends oplock break
7643	replies in both cases. Don't keep logging an error
7644	message here - just ignore it. JRA. */
7645
7646	DEBUG(5,("reply_lockingX: Error : oplock break from "
7647	"client for fnum = %d (oplock=%d) and no "
7648	"oplock granted on this file (%s).\n",
7649	fsp->fnum, fsp->oplock_type,
7650	fsp_str_dbg(fsp)));
7651
7652	/* if this is a pure oplock break request then don't
7653	* send a reply */
7654	if (num_locks == 0 && num_ulocks == 0) {
7655	END_PROFILE(SMBlockingX);
7656	return;
7657	} else {
7658	END_PROFILE(SMBlockingX);
7659	reply_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
7660	return;
7661	}
7662	}
7663
7664	if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) \|\|
7665	(break_to_none)) {
7666	result = remove_oplock(fsp);
7667	} else {
7668	result = downgrade_oplock(fsp);
7669	}
7670
7671	if (!result) {
7672	DEBUG(0, ("reply_lockingX: error in removing "
7673	"oplock on file %s\n", fsp_str_dbg(fsp)));
7674	/* Hmmm. Is this panic justified? */
7675	smb_panic("internal tdb error");
7676	}
7677
7678	reply_to_oplock_break_requests(fsp);
7679
7680	/* if this is a pure oplock break request then don't send a
7681	* reply */
7682	if (num_locks == 0 && num_ulocks == 0) {
7683	/* Sanity check - ensure a pure oplock break is not a
7684	chained request. */
7685	if(CVAL(req->vwv+0, 0) != 0xff)
7686	DEBUG(0,("reply_lockingX: Error : pure oplock "
7687	"break is a chained %d request !\n",
7688	(unsigned int)CVAL(req->vwv+0, 0)));
7689	END_PROFILE(SMBlockingX);
7690	return;
7691	}
7692	}
7693
7694	if (req->buflen <
7695	(num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
7696	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7697	END_PROFILE(SMBlockingX);
7698	return;
7699	}
7700
7701	ulocks = talloc_array(req, struct smbd_lock_element, num_ulocks);
7702	if (ulocks == NULL) {
7703	reply_nterror(req, NT_STATUS_NO_MEMORY);
7704	END_PROFILE(SMBlockingX);
7705	return;
7706	}
7707
7708	locks = talloc_array(req, struct smbd_lock_element, num_locks);
7709	if (locks == NULL) {
7710	reply_nterror(req, NT_STATUS_NO_MEMORY);
7711	END_PROFILE(SMBlockingX);
7712	return;
7713	}
7714
7715	/* Data now points at the beginning of the list
7716	of smb_unlkrng structs */
7717	for(i = 0; i < (int)num_ulocks; i++) {
7718	ulocks[i].smblctx = get_lock_pid(data, i, large_file_format);
7719	ulocks[i].count = get_lock_count(data, i, large_file_format);
7720	ulocks[i].offset = get_lock_offset(data, i, large_file_format, &err);
7721	ulocks[i].brltype = UNLOCK_LOCK;
7722
7723	/*
7724	* There is no error code marked "stupid client bug".... :-).
7725	*/
7726	if(err) {
7727	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
7728	END_PROFILE(SMBlockingX);
7729	return;
7730	}
7731	}
7732
7733	/* Now do any requested locks */
7734	data += ((large_file_format ? 20 : 10)*num_ulocks);
7735
7736	/* Data now points at the beginning of the list
7737	of smb_lkrng structs */
7738
7739	for(i = 0; i < (int)num_locks; i++) {
7740	locks[i].smblctx = get_lock_pid(data, i, large_file_format);
7741	locks[i].count = get_lock_count(data, i, large_file_format);
7742	locks[i].offset = get_lock_offset(data, i, large_file_format, &err);
7743
7744	if (locktype & LOCKING_ANDX_SHARED_LOCK) {
7745	if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
7746	locks[i].brltype = PENDING_READ_LOCK;
7747	} else {
7748	locks[i].brltype = READ_LOCK;
7749	}
7750	} else {
7751	if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
7752	locks[i].brltype = PENDING_WRITE_LOCK;
7753	} else {
7754	locks[i].brltype = WRITE_LOCK;
7755	}
7756	}
7757
7758	/*
7759	* There is no error code marked "stupid client bug".... :-).
7760	*/
7761	if(err) {
7762	reply_nterror(req, NT_STATUS_ACCESS_DENIED);
7763	END_PROFILE(SMBlockingX);
7764	return;
7765	}
7766	}
7767
7768	status = smbd_do_locking(req, fsp,
7769	locktype, lock_timeout,
7770	num_ulocks, ulocks,
7771	num_locks, locks,
7772	&async);
7773	if (!NT_STATUS_IS_OK(status)) {
7774	END_PROFILE(SMBlockingX);
7775	reply_nterror(req, status);
7776	return;
7777	}
7778	if (async) {
7779	END_PROFILE(SMBlockingX);
7780	return;
7781	}
7782
7783	reply_outbuf(req, 2, 0);
7784
7785	DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
7786	fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
7787
7788	END_PROFILE(SMBlockingX);
7789	chain_reply(req);
7790	}
7791
7792	#undef DBGC_CLASS
7793	#define DBGC_CLASS DBGC_ALL
7794
7795	/****************************************************************************
7796	Reply to a SMBreadbmpx (read block multiplex) request.
7797	Always reply with an error, if someone has a platform really needs this,
7798	please contact vl@samba.org
7799	****************************************************************************/
7800
7801	void reply_readbmpx(struct smb_request *req)
7802	{
7803	START_PROFILE(SMBreadBmpx);
7804	reply_force_doserror(req, ERRSRV, ERRuseSTD);
7805	END_PROFILE(SMBreadBmpx);
7806	return;
7807	}
7808
7809	/****************************************************************************
7810	Reply to a SMBreadbs (read block multiplex secondary) request.
7811	Always reply with an error, if someone has a platform really needs this,
7812	please contact vl@samba.org
7813	****************************************************************************/
7814
7815	void reply_readbs(struct smb_request *req)
7816	{
7817	START_PROFILE(SMBreadBs);
7818	reply_force_doserror(req, ERRSRV, ERRuseSTD);
7819	END_PROFILE(SMBreadBs);
7820	return;
7821	}
7822
7823	/****************************************************************************
7824	Reply to a SMBsetattrE.
7825	****************************************************************************/
7826
7827	void reply_setattrE(struct smb_request *req)
7828	{
7829	connection_struct *conn = req->conn;
7830	struct smb_file_time ft;
7831	files_struct *fsp;
7832	NTSTATUS status;
7833
7834	START_PROFILE(SMBsetattrE);
7835	ZERO_STRUCT(ft);
7836
7837	if (req->wct < 7) {
7838	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7839	goto out;
7840	}
7841
7842	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7843
7844	if(!fsp \|\| (fsp->conn != conn)) {
7845	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
7846	goto out;
7847	}
7848
7849	/*
7850	* Convert the DOS times into unix times.
7851	*/
7852
7853	ft.atime = convert_time_t_to_timespec(
7854	srv_make_unix_date2(req->vwv+3));
7855	ft.mtime = convert_time_t_to_timespec(
7856	srv_make_unix_date2(req->vwv+5));
7857	ft.create_time = convert_time_t_to_timespec(
7858	srv_make_unix_date2(req->vwv+1));
7859
7860	reply_outbuf(req, 0, 0);
7861
7862	/*
7863	* Patch from Ray Frush <frush@engr.colostate.edu>
7864	* Sometimes times are sent as zero - ignore them.
7865	*/
7866
7867	/* Ensure we have a valid stat struct for the source. */
7868	status = vfs_stat_fsp(fsp);
7869	if (!NT_STATUS_IS_OK(status)) {
7870	reply_nterror(req, status);
7871	goto out;
7872	}
7873
7874	status = smb_set_file_time(conn, fsp, fsp->fsp_name, &ft, true);
7875	if (!NT_STATUS_IS_OK(status)) {
7876	reply_nterror(req, status);
7877	goto out;
7878	}
7879
7880	DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u "
7881	" createtime=%u\n",
7882	fsp->fnum,
7883	(unsigned int)ft.atime.tv_sec,
7884	(unsigned int)ft.mtime.tv_sec,
7885	(unsigned int)ft.create_time.tv_sec
7886	));
7887	out:
7888	END_PROFILE(SMBsetattrE);
7889	return;
7890	}
7891
7892
7893	/* Back from the dead for OS/2..... JRA. */
7894
7895	/****************************************************************************
7896	Reply to a SMBwritebmpx (write block multiplex primary) request.
7897	Always reply with an error, if someone has a platform really needs this,
7898	please contact vl@samba.org
7899	****************************************************************************/
7900
7901	void reply_writebmpx(struct smb_request *req)
7902	{
7903	START_PROFILE(SMBwriteBmpx);
7904	reply_force_doserror(req, ERRSRV, ERRuseSTD);
7905	END_PROFILE(SMBwriteBmpx);
7906	return;
7907	}
7908
7909	/****************************************************************************
7910	Reply to a SMBwritebs (write block multiplex secondary) request.
7911	Always reply with an error, if someone has a platform really needs this,
7912	please contact vl@samba.org
7913	****************************************************************************/
7914
7915	void reply_writebs(struct smb_request *req)
7916	{
7917	START_PROFILE(SMBwriteBs);
7918	reply_force_doserror(req, ERRSRV, ERRuseSTD);
7919	END_PROFILE(SMBwriteBs);
7920	return;
7921	}
7922
7923	/****************************************************************************
7924	Reply to a SMBgetattrE.
7925	****************************************************************************/
7926
7927	void reply_getattrE(struct smb_request *req)
7928	{
7929	connection_struct *conn = req->conn;
7930	int mode;
7931	files_struct *fsp;
7932	struct timespec create_ts;
7933
7934	START_PROFILE(SMBgetattrE);
7935
7936	if (req->wct < 1) {
7937	reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7938	END_PROFILE(SMBgetattrE);
7939	return;
7940	}
7941
7942	fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7943
7944	if(!fsp \|\| (fsp->conn != conn)) {
7945	reply_nterror(req, NT_STATUS_INVALID_HANDLE);
7946	END_PROFILE(SMBgetattrE);
7947	return;
7948	}
7949
7950	/* Do an fstat on this file */
7951	if(fsp_stat(fsp)) {
7952	reply_nterror(req, map_nt_error_from_unix(errno));
7953	END_PROFILE(SMBgetattrE);
7954	return;
7955	}
7956
7957	mode = dos_mode(conn, fsp->fsp_name);
7958
7959	/*
7960	* Convert the times into dos times. Set create
7961	* date to be last modify date as UNIX doesn't save
7962	* this.
7963	*/
7964
7965	reply_outbuf(req, 11, 0);
7966
7967	create_ts = get_create_timespec(conn, fsp, fsp->fsp_name);
7968	srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec);
7969	srv_put_dos_date2((char *)req->outbuf, smb_vwv2,
7970	convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_atime));
7971	/* Should we check pending modtime here ? JRA */
7972	srv_put_dos_date2((char *)req->outbuf, smb_vwv4,
7973	convert_timespec_to_time_t(fsp->fsp_name->st.st_ex_mtime));
7974
7975	if (mode & FILE_ATTRIBUTE_DIRECTORY) {
7976	SIVAL(req->outbuf, smb_vwv6, 0);
7977	SIVAL(req->outbuf, smb_vwv8, 0);
7978	} else {
7979	uint32 allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn,fsp, &fsp->fsp_name->st);
7980	SIVAL(req->outbuf, smb_vwv6, (uint32)fsp->fsp_name->st.st_ex_size);
7981	SIVAL(req->outbuf, smb_vwv8, allocation_size);
7982	}
7983	SSVAL(req->outbuf,smb_vwv10, mode);
7984
7985	DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
7986
7987	END_PROFILE(SMBgetattrE);
7988	return;
7989	}

Note: See TracBrowser for help on using the repository browser.

Download in other formats: