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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * SMB1 (CIFS) version specific operations
4 *
5 * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
6 */
7
8#include <linux/pagemap.h>
9#include <linux/vfs.h>
10#include "cifsglob.h"
11#include "cifsproto.h"
12#include "cifs_debug.h"
13#include "cifspdu.h"
14#include "cifs_unicode.h"
15
16/*
17 * An NT cancel request header looks just like the original request except:
18 *
19 * The Command is SMB_COM_NT_CANCEL
20 * The WordCount is zeroed out
21 * The ByteCount is zeroed out
22 *
23 * This function mangles an existing request buffer into a
24 * SMB_COM_NT_CANCEL request and then sends it.
25 */
26static int
27send_nt_cancel(struct TCP_Server_Info *server, struct smb_rqst *rqst,
28 struct mid_q_entry *mid)
29{
30 int rc = 0;
31 struct smb_hdr *in_buf = (struct smb_hdr *)rqst->rq_iov[0].iov_base;
32
33 /* -4 for RFC1001 length and +2 for BCC field */
34 in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);
35 in_buf->Command = SMB_COM_NT_CANCEL;
36 in_buf->WordCount = 0;
37 put_bcc(0, in_buf);
38
39 mutex_lock(&server->srv_mutex);
40 rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
41 if (rc) {
42 mutex_unlock(&server->srv_mutex);
43 return rc;
44 }
45
46 /*
47 * The response to this call was already factored into the sequence
48 * number when the call went out, so we must adjust it back downward
49 * after signing here.
50 */
51 --server->sequence_number;
52 rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
53 if (rc < 0)
54 server->sequence_number--;
55
56 mutex_unlock(&server->srv_mutex);
57
58 cifs_dbg(FYI, "issued NT_CANCEL for mid %u, rc = %d\n",
59 get_mid(in_buf), rc);
60
61 return rc;
62}
63
64static bool
65cifs_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
66{
67 return ob1->fid.netfid == ob2->fid.netfid;
68}
69
70static unsigned int
71cifs_read_data_offset(char *buf)
72{
73 READ_RSP *rsp = (READ_RSP *)buf;
74 return le16_to_cpu(rsp->DataOffset);
75}
76
77static unsigned int
78cifs_read_data_length(char *buf, bool in_remaining)
79{
80 READ_RSP *rsp = (READ_RSP *)buf;
81 /* It's a bug reading remaining data for SMB1 packets */
82 WARN_ON(in_remaining);
83 return (le16_to_cpu(rsp->DataLengthHigh) << 16) +
84 le16_to_cpu(rsp->DataLength);
85}
86
87static struct mid_q_entry *
88cifs_find_mid(struct TCP_Server_Info *server, char *buffer)
89{
90 struct smb_hdr *buf = (struct smb_hdr *)buffer;
91 struct mid_q_entry *mid;
92
93 spin_lock(&GlobalMid_Lock);
94 list_for_each_entry(mid, &server->pending_mid_q, qhead) {
95 if (compare_mid(mid->mid, buf) &&
96 mid->mid_state == MID_REQUEST_SUBMITTED &&
97 le16_to_cpu(mid->command) == buf->Command) {
98 kref_get(&mid->refcount);
99 spin_unlock(&GlobalMid_Lock);
100 return mid;
101 }
102 }
103 spin_unlock(&GlobalMid_Lock);
104 return NULL;
105}
106
107static void
108cifs_add_credits(struct TCP_Server_Info *server,
109 const struct cifs_credits *credits, const int optype)
110{
111 spin_lock(&server->req_lock);
112 server->credits += credits->value;
113 server->in_flight--;
114 spin_unlock(&server->req_lock);
115 wake_up(&server->request_q);
116}
117
118static void
119cifs_set_credits(struct TCP_Server_Info *server, const int val)
120{
121 spin_lock(&server->req_lock);
122 server->credits = val;
123 server->oplocks = val > 1 ? enable_oplocks : false;
124 spin_unlock(&server->req_lock);
125}
126
127static int *
128cifs_get_credits_field(struct TCP_Server_Info *server, const int optype)
129{
130 return &server->credits;
131}
132
133static unsigned int
134cifs_get_credits(struct mid_q_entry *mid)
135{
136 return 1;
137}
138
139/*
140 * Find a free multiplex id (SMB mid). Otherwise there could be
141 * mid collisions which might cause problems, demultiplexing the
142 * wrong response to this request. Multiplex ids could collide if
143 * one of a series requests takes much longer than the others, or
144 * if a very large number of long lived requests (byte range
145 * locks or FindNotify requests) are pending. No more than
146 * 64K-1 requests can be outstanding at one time. If no
147 * mids are available, return zero. A future optimization
148 * could make the combination of mids and uid the key we use
149 * to demultiplex on (rather than mid alone).
150 * In addition to the above check, the cifs demultiplex
151 * code already used the command code as a secondary
152 * check of the frame and if signing is negotiated the
153 * response would be discarded if the mid were the same
154 * but the signature was wrong. Since the mid is not put in the
155 * pending queue until later (when it is about to be dispatched)
156 * we do have to limit the number of outstanding requests
157 * to somewhat less than 64K-1 although it is hard to imagine
158 * so many threads being in the vfs at one time.
159 */
160static __u64
161cifs_get_next_mid(struct TCP_Server_Info *server)
162{
163 __u64 mid = 0;
164 __u16 last_mid, cur_mid;
165 bool collision;
166
167 spin_lock(&GlobalMid_Lock);
168
169 /* mid is 16 bit only for CIFS/SMB */
170 cur_mid = (__u16)((server->CurrentMid) & 0xffff);
171 /* we do not want to loop forever */
172 last_mid = cur_mid;
173 cur_mid++;
174 /* avoid 0xFFFF MID */
175 if (cur_mid == 0xffff)
176 cur_mid++;
177
178 /*
179 * This nested loop looks more expensive than it is.
180 * In practice the list of pending requests is short,
181 * fewer than 50, and the mids are likely to be unique
182 * on the first pass through the loop unless some request
183 * takes longer than the 64 thousand requests before it
184 * (and it would also have to have been a request that
185 * did not time out).
186 */
187 while (cur_mid != last_mid) {
188 struct mid_q_entry *mid_entry;
189 unsigned int num_mids;
190
191 collision = false;
192 if (cur_mid == 0)
193 cur_mid++;
194
195 num_mids = 0;
196 list_for_each_entry(mid_entry, &server->pending_mid_q, qhead) {
197 ++num_mids;
198 if (mid_entry->mid == cur_mid &&
199 mid_entry->mid_state == MID_REQUEST_SUBMITTED) {
200 /* This mid is in use, try a different one */
201 collision = true;
202 break;
203 }
204 }
205
206 /*
207 * if we have more than 32k mids in the list, then something
208 * is very wrong. Possibly a local user is trying to DoS the
209 * box by issuing long-running calls and SIGKILL'ing them. If
210 * we get to 2^16 mids then we're in big trouble as this
211 * function could loop forever.
212 *
213 * Go ahead and assign out the mid in this situation, but force
214 * an eventual reconnect to clean out the pending_mid_q.
215 */
216 if (num_mids > 32768)
217 server->tcpStatus = CifsNeedReconnect;
218
219 if (!collision) {
220 mid = (__u64)cur_mid;
221 server->CurrentMid = mid;
222 break;
223 }
224 cur_mid++;
225 }
226 spin_unlock(&GlobalMid_Lock);
227 return mid;
228}
229
230/*
231 return codes:
232 0 not a transact2, or all data present
233 >0 transact2 with that much data missing
234 -EINVAL invalid transact2
235 */
236static int
237check2ndT2(char *buf)
238{
239 struct smb_hdr *pSMB = (struct smb_hdr *)buf;
240 struct smb_t2_rsp *pSMBt;
241 int remaining;
242 __u16 total_data_size, data_in_this_rsp;
243
244 if (pSMB->Command != SMB_COM_TRANSACTION2)
245 return 0;
246
247 /* check for plausible wct, bcc and t2 data and parm sizes */
248 /* check for parm and data offset going beyond end of smb */
249 if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */
250 cifs_dbg(FYI, "Invalid transact2 word count\n");
251 return -EINVAL;
252 }
253
254 pSMBt = (struct smb_t2_rsp *)pSMB;
255
256 total_data_size = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount);
257 data_in_this_rsp = get_unaligned_le16(&pSMBt->t2_rsp.DataCount);
258
259 if (total_data_size == data_in_this_rsp)
260 return 0;
261 else if (total_data_size < data_in_this_rsp) {
262 cifs_dbg(FYI, "total data %d smaller than data in frame %d\n",
263 total_data_size, data_in_this_rsp);
264 return -EINVAL;
265 }
266
267 remaining = total_data_size - data_in_this_rsp;
268
269 cifs_dbg(FYI, "missing %d bytes from transact2, check next response\n",
270 remaining);
271 if (total_data_size > CIFSMaxBufSize) {
272 cifs_dbg(VFS, "TotalDataSize %d is over maximum buffer %d\n",
273 total_data_size, CIFSMaxBufSize);
274 return -EINVAL;
275 }
276 return remaining;
277}
278
279static int
280coalesce_t2(char *second_buf, struct smb_hdr *target_hdr)
281{
282 struct smb_t2_rsp *pSMBs = (struct smb_t2_rsp *)second_buf;
283 struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)target_hdr;
284 char *data_area_of_tgt;
285 char *data_area_of_src;
286 int remaining;
287 unsigned int byte_count, total_in_tgt;
288 __u16 tgt_total_cnt, src_total_cnt, total_in_src;
289
290 src_total_cnt = get_unaligned_le16(&pSMBs->t2_rsp.TotalDataCount);
291 tgt_total_cnt = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount);
292
293 if (tgt_total_cnt != src_total_cnt)
294 cifs_dbg(FYI, "total data count of primary and secondary t2 differ source=%hu target=%hu\n",
295 src_total_cnt, tgt_total_cnt);
296
297 total_in_tgt = get_unaligned_le16(&pSMBt->t2_rsp.DataCount);
298
299 remaining = tgt_total_cnt - total_in_tgt;
300
301 if (remaining < 0) {
302 cifs_dbg(FYI, "Server sent too much data. tgt_total_cnt=%hu total_in_tgt=%u\n",
303 tgt_total_cnt, total_in_tgt);
304 return -EPROTO;
305 }
306
307 if (remaining == 0) {
308 /* nothing to do, ignore */
309 cifs_dbg(FYI, "no more data remains\n");
310 return 0;
311 }
312
313 total_in_src = get_unaligned_le16(&pSMBs->t2_rsp.DataCount);
314 if (remaining < total_in_src)
315 cifs_dbg(FYI, "transact2 2nd response contains too much data\n");
316
317 /* find end of first SMB data area */
318 data_area_of_tgt = (char *)&pSMBt->hdr.Protocol +
319 get_unaligned_le16(&pSMBt->t2_rsp.DataOffset);
320
321 /* validate target area */
322 data_area_of_src = (char *)&pSMBs->hdr.Protocol +
323 get_unaligned_le16(&pSMBs->t2_rsp.DataOffset);
324
325 data_area_of_tgt += total_in_tgt;
326
327 total_in_tgt += total_in_src;
328 /* is the result too big for the field? */
329 if (total_in_tgt > USHRT_MAX) {
330 cifs_dbg(FYI, "coalesced DataCount too large (%u)\n",
331 total_in_tgt);
332 return -EPROTO;
333 }
334 put_unaligned_le16(total_in_tgt, &pSMBt->t2_rsp.DataCount);
335
336 /* fix up the BCC */
337 byte_count = get_bcc(target_hdr);
338 byte_count += total_in_src;
339 /* is the result too big for the field? */
340 if (byte_count > USHRT_MAX) {
341 cifs_dbg(FYI, "coalesced BCC too large (%u)\n", byte_count);
342 return -EPROTO;
343 }
344 put_bcc(byte_count, target_hdr);
345
346 byte_count = be32_to_cpu(target_hdr->smb_buf_length);
347 byte_count += total_in_src;
348 /* don't allow buffer to overflow */
349 if (byte_count > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
350 cifs_dbg(FYI, "coalesced BCC exceeds buffer size (%u)\n",
351 byte_count);
352 return -ENOBUFS;
353 }
354 target_hdr->smb_buf_length = cpu_to_be32(byte_count);
355
356 /* copy second buffer into end of first buffer */
357 memcpy(data_area_of_tgt, data_area_of_src, total_in_src);
358
359 if (remaining != total_in_src) {
360 /* more responses to go */
361 cifs_dbg(FYI, "waiting for more secondary responses\n");
362 return 1;
363 }
364
365 /* we are done */
366 cifs_dbg(FYI, "found the last secondary response\n");
367 return 0;
368}
369
370static void
371cifs_downgrade_oplock(struct TCP_Server_Info *server,
372 struct cifsInodeInfo *cinode, __u32 oplock,
373 unsigned int epoch, bool *purge_cache)
374{
375 cifs_set_oplock_level(cinode, oplock);
376}
377
378static bool
379cifs_check_trans2(struct mid_q_entry *mid, struct TCP_Server_Info *server,
380 char *buf, int malformed)
381{
382 if (malformed)
383 return false;
384 if (check2ndT2(buf) <= 0)
385 return false;
386 mid->multiRsp = true;
387 if (mid->resp_buf) {
388 /* merge response - fix up 1st*/
389 malformed = coalesce_t2(buf, mid->resp_buf);
390 if (malformed > 0)
391 return true;
392 /* All parts received or packet is malformed. */
393 mid->multiEnd = true;
394 dequeue_mid(mid, malformed);
395 return true;
396 }
397 if (!server->large_buf) {
398 /*FIXME: switch to already allocated largebuf?*/
399 cifs_dbg(VFS, "1st trans2 resp needs bigbuf\n");
400 } else {
401 /* Have first buffer */
402 mid->resp_buf = buf;
403 mid->large_buf = true;
404 server->bigbuf = NULL;
405 }
406 return true;
407}
408
409static bool
410cifs_need_neg(struct TCP_Server_Info *server)
411{
412 return server->maxBuf == 0;
413}
414
415static int
416cifs_negotiate(const unsigned int xid, struct cifs_ses *ses)
417{
418 int rc;
419 rc = CIFSSMBNegotiate(xid, ses);
420 if (rc == -EAGAIN) {
421 /* retry only once on 1st time connection */
422 set_credits(ses->server, 1);
423 rc = CIFSSMBNegotiate(xid, ses);
424 if (rc == -EAGAIN)
425 rc = -EHOSTDOWN;
426 }
427 return rc;
428}
429
430static unsigned int
431cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
432{
433 __u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
434 struct TCP_Server_Info *server = tcon->ses->server;
435 unsigned int wsize;
436
437 /* start with specified wsize, or default */
438 if (volume_info->wsize)
439 wsize = volume_info->wsize;
440 else if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
441 wsize = CIFS_DEFAULT_IOSIZE;
442 else
443 wsize = CIFS_DEFAULT_NON_POSIX_WSIZE;
444
445 /* can server support 24-bit write sizes? (via UNIX extensions) */
446 if (!tcon->unix_ext || !(unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
447 wsize = min_t(unsigned int, wsize, CIFS_MAX_RFC1002_WSIZE);
448
449 /*
450 * no CAP_LARGE_WRITE_X or is signing enabled without CAP_UNIX set?
451 * Limit it to max buffer offered by the server, minus the size of the
452 * WRITEX header, not including the 4 byte RFC1001 length.
453 */
454 if (!(server->capabilities & CAP_LARGE_WRITE_X) ||
455 (!(server->capabilities & CAP_UNIX) && server->sign))
456 wsize = min_t(unsigned int, wsize,
457 server->maxBuf - sizeof(WRITE_REQ) + 4);
458
459 /* hard limit of CIFS_MAX_WSIZE */
460 wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE);
461
462 return wsize;
463}
464
465static unsigned int
466cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
467{
468 __u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
469 struct TCP_Server_Info *server = tcon->ses->server;
470 unsigned int rsize, defsize;
471
472 /*
473 * Set default value...
474 *
475 * HACK alert! Ancient servers have very small buffers. Even though
476 * MS-CIFS indicates that servers are only limited by the client's
477 * bufsize for reads, testing against win98se shows that it throws
478 * INVALID_PARAMETER errors if you try to request too large a read.
479 * OS/2 just sends back short reads.
480 *
481 * If the server doesn't advertise CAP_LARGE_READ_X, then assume that
482 * it can't handle a read request larger than its MaxBufferSize either.
483 */
484 if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_READ_CAP))
485 defsize = CIFS_DEFAULT_IOSIZE;
486 else if (server->capabilities & CAP_LARGE_READ_X)
487 defsize = CIFS_DEFAULT_NON_POSIX_RSIZE;
488 else
489 defsize = server->maxBuf - sizeof(READ_RSP);
490
491 rsize = volume_info->rsize ? volume_info->rsize : defsize;
492
493 /*
494 * no CAP_LARGE_READ_X? Then MS-CIFS states that we must limit this to
495 * the client's MaxBufferSize.
496 */
497 if (!(server->capabilities & CAP_LARGE_READ_X))
498 rsize = min_t(unsigned int, CIFSMaxBufSize, rsize);
499
500 /* hard limit of CIFS_MAX_RSIZE */
501 rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE);
502
503 return rsize;
504}
505
506static void
507cifs_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon,
508 struct cifs_sb_info *cifs_sb)
509{
510 CIFSSMBQFSDeviceInfo(xid, tcon);
511 CIFSSMBQFSAttributeInfo(xid, tcon);
512}
513
514static int
515cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
516 struct cifs_sb_info *cifs_sb, const char *full_path)
517{
518 int rc;
519 FILE_ALL_INFO *file_info;
520
521 file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
522 if (file_info == NULL)
523 return -ENOMEM;
524
525 rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info,
526 0 /* not legacy */, cifs_sb->local_nls,
527 cifs_remap(cifs_sb));
528
529 if (rc == -EOPNOTSUPP || rc == -EINVAL)
530 rc = SMBQueryInformation(xid, tcon, full_path, file_info,
531 cifs_sb->local_nls, cifs_remap(cifs_sb));
532 kfree(file_info);
533 return rc;
534}
535
536static int
537cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
538 struct cifs_sb_info *cifs_sb, const char *full_path,
539 FILE_ALL_INFO *data, bool *adjustTZ, bool *symlink)
540{
541 int rc;
542
543 *symlink = false;
544
545 /* could do find first instead but this returns more info */
546 rc = CIFSSMBQPathInfo(xid, tcon, full_path, data, 0 /* not legacy */,
547 cifs_sb->local_nls, cifs_remap(cifs_sb));
548 /*
549 * BB optimize code so we do not make the above call when server claims
550 * no NT SMB support and the above call failed at least once - set flag
551 * in tcon or mount.
552 */
553 if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) {
554 rc = SMBQueryInformation(xid, tcon, full_path, data,
555 cifs_sb->local_nls,
556 cifs_remap(cifs_sb));
557 *adjustTZ = true;
558 }
559
560 if (!rc && (le32_to_cpu(data->Attributes) & ATTR_REPARSE)) {
561 int tmprc;
562 int oplock = 0;
563 struct cifs_fid fid;
564 struct cifs_open_parms oparms;
565
566 oparms.tcon = tcon;
567 oparms.cifs_sb = cifs_sb;
568 oparms.desired_access = FILE_READ_ATTRIBUTES;
569 oparms.create_options = cifs_create_options(cifs_sb, 0);
570 oparms.disposition = FILE_OPEN;
571 oparms.path = full_path;
572 oparms.fid = &fid;
573 oparms.reconnect = false;
574
575 /* Need to check if this is a symbolic link or not */
576 tmprc = CIFS_open(xid, &oparms, &oplock, NULL);
577 if (tmprc == -EOPNOTSUPP)
578 *symlink = true;
579 else if (tmprc == 0)
580 CIFSSMBClose(xid, tcon, fid.netfid);
581 }
582
583 return rc;
584}
585
586static int
587cifs_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
588 struct cifs_sb_info *cifs_sb, const char *full_path,
589 u64 *uniqueid, FILE_ALL_INFO *data)
590{
591 /*
592 * We can not use the IndexNumber field by default from Windows or
593 * Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA
594 * CIFS spec claims that this value is unique within the scope of a
595 * share, and the windows docs hint that it's actually unique
596 * per-machine.
597 *
598 * There may be higher info levels that work but are there Windows
599 * server or network appliances for which IndexNumber field is not
600 * guaranteed unique?
601 */
602 return CIFSGetSrvInodeNumber(xid, tcon, full_path, uniqueid,
603 cifs_sb->local_nls,
604 cifs_remap(cifs_sb));
605}
606
607static int
608cifs_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
609 struct cifs_fid *fid, FILE_ALL_INFO *data)
610{
611 return CIFSSMBQFileInfo(xid, tcon, fid->netfid, data);
612}
613
614static void
615cifs_clear_stats(struct cifs_tcon *tcon)
616{
617 atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
618 atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
619 atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
620 atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
621 atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
622 atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
623 atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
624 atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
625 atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
626 atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
627 atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
628 atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
629 atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
630 atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
631 atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
632 atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
633 atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
634 atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
635 atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
636 atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
637 atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
638}
639
640static void
641cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
642{
643 seq_printf(m, " Oplocks breaks: %d",
644 atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
645 seq_printf(m, "\nReads: %d Bytes: %llu",
646 atomic_read(&tcon->stats.cifs_stats.num_reads),
647 (long long)(tcon->bytes_read));
648 seq_printf(m, "\nWrites: %d Bytes: %llu",
649 atomic_read(&tcon->stats.cifs_stats.num_writes),
650 (long long)(tcon->bytes_written));
651 seq_printf(m, "\nFlushes: %d",
652 atomic_read(&tcon->stats.cifs_stats.num_flushes));
653 seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
654 atomic_read(&tcon->stats.cifs_stats.num_locks),
655 atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
656 atomic_read(&tcon->stats.cifs_stats.num_symlinks));
657 seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
658 atomic_read(&tcon->stats.cifs_stats.num_opens),
659 atomic_read(&tcon->stats.cifs_stats.num_closes),
660 atomic_read(&tcon->stats.cifs_stats.num_deletes));
661 seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
662 atomic_read(&tcon->stats.cifs_stats.num_posixopens),
663 atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
664 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
665 atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
666 atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
667 seq_printf(m, "\nRenames: %d T2 Renames %d",
668 atomic_read(&tcon->stats.cifs_stats.num_renames),
669 atomic_read(&tcon->stats.cifs_stats.num_t2renames));
670 seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
671 atomic_read(&tcon->stats.cifs_stats.num_ffirst),
672 atomic_read(&tcon->stats.cifs_stats.num_fnext),
673 atomic_read(&tcon->stats.cifs_stats.num_fclose));
674}
675
676static void
677cifs_mkdir_setinfo(struct inode *inode, const char *full_path,
678 struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
679 const unsigned int xid)
680{
681 FILE_BASIC_INFO info;
682 struct cifsInodeInfo *cifsInode;
683 u32 dosattrs;
684 int rc;
685
686 memset(&info, 0, sizeof(info));
687 cifsInode = CIFS_I(inode);
688 dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
689 info.Attributes = cpu_to_le32(dosattrs);
690 rc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info, cifs_sb->local_nls,
691 cifs_sb);
692 if (rc == 0)
693 cifsInode->cifsAttrs = dosattrs;
694}
695
696static int
697cifs_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
698 __u32 *oplock, FILE_ALL_INFO *buf)
699{
700 if (!(oparms->tcon->ses->capabilities & CAP_NT_SMBS))
701 return SMBLegacyOpen(xid, oparms->tcon, oparms->path,
702 oparms->disposition,
703 oparms->desired_access,
704 oparms->create_options,
705 &oparms->fid->netfid, oplock, buf,
706 oparms->cifs_sb->local_nls,
707 cifs_remap(oparms->cifs_sb));
708 return CIFS_open(xid, oparms, oplock, buf);
709}
710
711static void
712cifs_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
713{
714 struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
715 cfile->fid.netfid = fid->netfid;
716 cifs_set_oplock_level(cinode, oplock);
717 cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
718}
719
720static void
721cifs_close_file(const unsigned int xid, struct cifs_tcon *tcon,
722 struct cifs_fid *fid)
723{
724 CIFSSMBClose(xid, tcon, fid->netfid);
725}
726
727static int
728cifs_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
729 struct cifs_fid *fid)
730{
731 return CIFSSMBFlush(xid, tcon, fid->netfid);
732}
733
734static int
735cifs_sync_read(const unsigned int xid, struct cifs_fid *pfid,
736 struct cifs_io_parms *parms, unsigned int *bytes_read,
737 char **buf, int *buf_type)
738{
739 parms->netfid = pfid->netfid;
740 return CIFSSMBRead(xid, parms, bytes_read, buf, buf_type);
741}
742
743static int
744cifs_sync_write(const unsigned int xid, struct cifs_fid *pfid,
745 struct cifs_io_parms *parms, unsigned int *written,
746 struct kvec *iov, unsigned long nr_segs)
747{
748
749 parms->netfid = pfid->netfid;
750 return CIFSSMBWrite2(xid, parms, written, iov, nr_segs);
751}
752
753static int
754smb_set_file_info(struct inode *inode, const char *full_path,
755 FILE_BASIC_INFO *buf, const unsigned int xid)
756{
757 int oplock = 0;
758 int rc;
759 __u32 netpid;
760 struct cifs_fid fid;
761 struct cifs_open_parms oparms;
762 struct cifsFileInfo *open_file;
763 struct cifsInodeInfo *cinode = CIFS_I(inode);
764 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
765 struct tcon_link *tlink = NULL;
766 struct cifs_tcon *tcon;
767
768 /* if the file is already open for write, just use that fileid */
769 open_file = find_writable_file(cinode, FIND_WR_FSUID_ONLY);
770 if (open_file) {
771 fid.netfid = open_file->fid.netfid;
772 netpid = open_file->pid;
773 tcon = tlink_tcon(open_file->tlink);
774 goto set_via_filehandle;
775 }
776
777 tlink = cifs_sb_tlink(cifs_sb);
778 if (IS_ERR(tlink)) {
779 rc = PTR_ERR(tlink);
780 tlink = NULL;
781 goto out;
782 }
783 tcon = tlink_tcon(tlink);
784
785 rc = CIFSSMBSetPathInfo(xid, tcon, full_path, buf, cifs_sb->local_nls,
786 cifs_sb);
787 if (rc == 0) {
788 cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
789 goto out;
790 } else if (rc != -EOPNOTSUPP && rc != -EINVAL) {
791 goto out;
792 }
793
794 oparms.tcon = tcon;
795 oparms.cifs_sb = cifs_sb;
796 oparms.desired_access = SYNCHRONIZE | FILE_WRITE_ATTRIBUTES;
797 oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR);
798 oparms.disposition = FILE_OPEN;
799 oparms.path = full_path;
800 oparms.fid = &fid;
801 oparms.reconnect = false;
802
803 cifs_dbg(FYI, "calling SetFileInfo since SetPathInfo for times not supported by this server\n");
804 rc = CIFS_open(xid, &oparms, &oplock, NULL);
805 if (rc != 0) {
806 if (rc == -EIO)
807 rc = -EINVAL;
808 goto out;
809 }
810
811 netpid = current->tgid;
812
813set_via_filehandle:
814 rc = CIFSSMBSetFileInfo(xid, tcon, buf, fid.netfid, netpid);
815 if (!rc)
816 cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
817
818 if (open_file == NULL)
819 CIFSSMBClose(xid, tcon, fid.netfid);
820 else
821 cifsFileInfo_put(open_file);
822out:
823 if (tlink != NULL)
824 cifs_put_tlink(tlink);
825 return rc;
826}
827
828static int
829cifs_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
830 struct cifsFileInfo *cfile)
831{
832 return CIFSSMB_set_compression(xid, tcon, cfile->fid.netfid);
833}
834
835static int
836cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
837 const char *path, struct cifs_sb_info *cifs_sb,
838 struct cifs_fid *fid, __u16 search_flags,
839 struct cifs_search_info *srch_inf)
840{
841 int rc;
842
843 rc = CIFSFindFirst(xid, tcon, path, cifs_sb,
844 &fid->netfid, search_flags, srch_inf, true);
845 if (rc)
846 cifs_dbg(FYI, "find first failed=%d\n", rc);
847 return rc;
848}
849
850static int
851cifs_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
852 struct cifs_fid *fid, __u16 search_flags,
853 struct cifs_search_info *srch_inf)
854{
855 return CIFSFindNext(xid, tcon, fid->netfid, search_flags, srch_inf);
856}
857
858static int
859cifs_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
860 struct cifs_fid *fid)
861{
862 return CIFSFindClose(xid, tcon, fid->netfid);
863}
864
865static int
866cifs_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
867 struct cifsInodeInfo *cinode)
868{
869 return CIFSSMBLock(0, tcon, fid->netfid, current->tgid, 0, 0, 0, 0,
870 LOCKING_ANDX_OPLOCK_RELEASE, false,
871 CIFS_CACHE_READ(cinode) ? 1 : 0);
872}
873
874static int
875cifs_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
876 struct cifs_sb_info *cifs_sb, struct kstatfs *buf)
877{
878 int rc = -EOPNOTSUPP;
879
880 buf->f_type = CIFS_MAGIC_NUMBER;
881
882 /*
883 * We could add a second check for a QFS Unix capability bit
884 */
885 if ((tcon->ses->capabilities & CAP_UNIX) &&
886 (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
887 rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
888
889 /*
890 * Only need to call the old QFSInfo if failed on newer one,
891 * e.g. by OS/2.
892 **/
893 if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
894 rc = CIFSSMBQFSInfo(xid, tcon, buf);
895
896 /*
897 * Some old Windows servers also do not support level 103, retry with
898 * older level one if old server failed the previous call or we
899 * bypassed it because we detected that this was an older LANMAN sess
900 */
901 if (rc)
902 rc = SMBOldQFSInfo(xid, tcon, buf);
903 return rc;
904}
905
906static int
907cifs_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
908 __u64 length, __u32 type, int lock, int unlock, bool wait)
909{
910 return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid,
911 current->tgid, length, offset, unlock, lock,
912 (__u8)type, wait, 0);
913}
914
915static int
916cifs_unix_dfs_readlink(const unsigned int xid, struct cifs_tcon *tcon,
917 const unsigned char *searchName, char **symlinkinfo,
918 const struct nls_table *nls_codepage)
919{
920#ifdef CONFIG_CIFS_DFS_UPCALL
921 int rc;
922 struct dfs_info3_param referral = {0};
923
924 rc = get_dfs_path(xid, tcon->ses, searchName, nls_codepage, &referral,
925 0);
926
927 if (!rc) {
928 *symlinkinfo = kstrndup(referral.node_name,
929 strlen(referral.node_name),
930 GFP_KERNEL);
931 free_dfs_info_param(&referral);
932 if (!*symlinkinfo)
933 rc = -ENOMEM;
934 }
935 return rc;
936#else /* No DFS support */
937 return -EREMOTE;
938#endif
939}
940
941static int
942cifs_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
943 struct cifs_sb_info *cifs_sb, const char *full_path,
944 char **target_path, bool is_reparse_point)
945{
946 int rc;
947 int oplock = 0;
948 struct cifs_fid fid;
949 struct cifs_open_parms oparms;
950
951 cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
952
953 if (is_reparse_point) {
954 cifs_dbg(VFS, "reparse points not handled for SMB1 symlinks\n");
955 return -EOPNOTSUPP;
956 }
957
958 /* Check for unix extensions */
959 if (cap_unix(tcon->ses)) {
960 rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, target_path,
961 cifs_sb->local_nls,
962 cifs_remap(cifs_sb));
963 if (rc == -EREMOTE)
964 rc = cifs_unix_dfs_readlink(xid, tcon, full_path,
965 target_path,
966 cifs_sb->local_nls);
967
968 goto out;
969 }
970
971 oparms.tcon = tcon;
972 oparms.cifs_sb = cifs_sb;
973 oparms.desired_access = FILE_READ_ATTRIBUTES;
974 oparms.create_options = cifs_create_options(cifs_sb,
975 OPEN_REPARSE_POINT);
976 oparms.disposition = FILE_OPEN;
977 oparms.path = full_path;
978 oparms.fid = &fid;
979 oparms.reconnect = false;
980
981 rc = CIFS_open(xid, &oparms, &oplock, NULL);
982 if (rc)
983 goto out;
984
985 rc = CIFSSMBQuerySymLink(xid, tcon, fid.netfid, target_path,
986 cifs_sb->local_nls);
987 if (rc)
988 goto out_close;
989
990 convert_delimiter(*target_path, '/');
991out_close:
992 CIFSSMBClose(xid, tcon, fid.netfid);
993out:
994 if (!rc)
995 cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
996 return rc;
997}
998
999static bool
1000cifs_is_read_op(__u32 oplock)
1001{
1002 return oplock == OPLOCK_READ;
1003}
1004
1005static unsigned int
1006cifs_wp_retry_size(struct inode *inode)
1007{
1008 return CIFS_SB(inode->i_sb)->wsize;
1009}
1010
1011static bool
1012cifs_dir_needs_close(struct cifsFileInfo *cfile)
1013{
1014 return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
1015}
1016
1017static bool
1018cifs_can_echo(struct TCP_Server_Info *server)
1019{
1020 if (server->tcpStatus == CifsGood)
1021 return true;
1022
1023 return false;
1024}
1025
1026static int
1027cifs_make_node(unsigned int xid, struct inode *inode,
1028 struct dentry *dentry, struct cifs_tcon *tcon,
1029 char *full_path, umode_t mode, dev_t dev)
1030{
1031 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
1032 struct inode *newinode = NULL;
1033 int rc = -EPERM;
1034 FILE_ALL_INFO *buf = NULL;
1035 struct cifs_io_parms io_parms;
1036 __u32 oplock = 0;
1037 struct cifs_fid fid;
1038 struct cifs_open_parms oparms;
1039 unsigned int bytes_written;
1040 struct win_dev *pdev;
1041 struct kvec iov[2];
1042
1043 if (tcon->unix_ext) {
1044 /*
1045 * SMB1 Unix Extensions: requires server support but
1046 * works with all special files
1047 */
1048 struct cifs_unix_set_info_args args = {
1049 .mode = mode & ~current_umask(),
1050 .ctime = NO_CHANGE_64,
1051 .atime = NO_CHANGE_64,
1052 .mtime = NO_CHANGE_64,
1053 .device = dev,
1054 };
1055 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
1056 args.uid = current_fsuid();
1057 args.gid = current_fsgid();
1058 } else {
1059 args.uid = INVALID_UID; /* no change */
1060 args.gid = INVALID_GID; /* no change */
1061 }
1062 rc = CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
1063 cifs_sb->local_nls,
1064 cifs_remap(cifs_sb));
1065 if (rc)
1066 goto out;
1067
1068 rc = cifs_get_inode_info_unix(&newinode, full_path,
1069 inode->i_sb, xid);
1070
1071 if (rc == 0)
1072 d_instantiate(dentry, newinode);
1073 goto out;
1074 }
1075
1076 /*
1077 * SMB1 SFU emulation: should work with all servers, but only
1078 * support block and char device (no socket & fifo)
1079 */
1080 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
1081 goto out;
1082
1083 if (!S_ISCHR(mode) && !S_ISBLK(mode))
1084 goto out;
1085
1086 cifs_dbg(FYI, "sfu compat create special file\n");
1087
1088 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
1089 if (buf == NULL) {
1090 rc = -ENOMEM;
1091 goto out;
1092 }
1093
1094 oparms.tcon = tcon;
1095 oparms.cifs_sb = cifs_sb;
1096 oparms.desired_access = GENERIC_WRITE;
1097 oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR |
1098 CREATE_OPTION_SPECIAL);
1099 oparms.disposition = FILE_CREATE;
1100 oparms.path = full_path;
1101 oparms.fid = &fid;
1102 oparms.reconnect = false;
1103
1104 if (tcon->ses->server->oplocks)
1105 oplock = REQ_OPLOCK;
1106 else
1107 oplock = 0;
1108 rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, buf);
1109 if (rc)
1110 goto out;
1111
1112 /*
1113 * BB Do not bother to decode buf since no local inode yet to put
1114 * timestamps in, but we can reuse it safely.
1115 */
1116
1117 pdev = (struct win_dev *)buf;
1118 io_parms.pid = current->tgid;
1119 io_parms.tcon = tcon;
1120 io_parms.offset = 0;
1121 io_parms.length = sizeof(struct win_dev);
1122 iov[1].iov_base = buf;
1123 iov[1].iov_len = sizeof(struct win_dev);
1124 if (S_ISCHR(mode)) {
1125 memcpy(pdev->type, "IntxCHR", 8);
1126 pdev->major = cpu_to_le64(MAJOR(dev));
1127 pdev->minor = cpu_to_le64(MINOR(dev));
1128 rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
1129 &bytes_written, iov, 1);
1130 } else if (S_ISBLK(mode)) {
1131 memcpy(pdev->type, "IntxBLK", 8);
1132 pdev->major = cpu_to_le64(MAJOR(dev));
1133 pdev->minor = cpu_to_le64(MINOR(dev));
1134 rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
1135 &bytes_written, iov, 1);
1136 }
1137 tcon->ses->server->ops->close(xid, tcon, &fid);
1138 d_drop(dentry);
1139
1140 /* FIXME: add code here to set EAs */
1141out:
1142 kfree(buf);
1143 return rc;
1144}
1145
1146
1147
1148struct smb_version_operations smb1_operations = {
1149 .send_cancel = send_nt_cancel,
1150 .compare_fids = cifs_compare_fids,
1151 .setup_request = cifs_setup_request,
1152 .setup_async_request = cifs_setup_async_request,
1153 .check_receive = cifs_check_receive,
1154 .add_credits = cifs_add_credits,
1155 .set_credits = cifs_set_credits,
1156 .get_credits_field = cifs_get_credits_field,
1157 .get_credits = cifs_get_credits,
1158 .wait_mtu_credits = cifs_wait_mtu_credits,
1159 .get_next_mid = cifs_get_next_mid,
1160 .read_data_offset = cifs_read_data_offset,
1161 .read_data_length = cifs_read_data_length,
1162 .map_error = map_smb_to_linux_error,
1163 .find_mid = cifs_find_mid,
1164 .check_message = checkSMB,
1165 .dump_detail = cifs_dump_detail,
1166 .clear_stats = cifs_clear_stats,
1167 .print_stats = cifs_print_stats,
1168 .is_oplock_break = is_valid_oplock_break,
1169 .downgrade_oplock = cifs_downgrade_oplock,
1170 .check_trans2 = cifs_check_trans2,
1171 .need_neg = cifs_need_neg,
1172 .negotiate = cifs_negotiate,
1173 .negotiate_wsize = cifs_negotiate_wsize,
1174 .negotiate_rsize = cifs_negotiate_rsize,
1175 .sess_setup = CIFS_SessSetup,
1176 .logoff = CIFSSMBLogoff,
1177 .tree_connect = CIFSTCon,
1178 .tree_disconnect = CIFSSMBTDis,
1179 .get_dfs_refer = CIFSGetDFSRefer,
1180 .qfs_tcon = cifs_qfs_tcon,
1181 .is_path_accessible = cifs_is_path_accessible,
1182 .can_echo = cifs_can_echo,
1183 .query_path_info = cifs_query_path_info,
1184 .query_file_info = cifs_query_file_info,
1185 .get_srv_inum = cifs_get_srv_inum,
1186 .set_path_size = CIFSSMBSetEOF,
1187 .set_file_size = CIFSSMBSetFileSize,
1188 .set_file_info = smb_set_file_info,
1189 .set_compression = cifs_set_compression,
1190 .echo = CIFSSMBEcho,
1191 .mkdir = CIFSSMBMkDir,
1192 .mkdir_setinfo = cifs_mkdir_setinfo,
1193 .rmdir = CIFSSMBRmDir,
1194 .unlink = CIFSSMBDelFile,
1195 .rename_pending_delete = cifs_rename_pending_delete,
1196 .rename = CIFSSMBRename,
1197 .create_hardlink = CIFSCreateHardLink,
1198 .query_symlink = cifs_query_symlink,
1199 .open = cifs_open_file,
1200 .set_fid = cifs_set_fid,
1201 .close = cifs_close_file,
1202 .flush = cifs_flush_file,
1203 .async_readv = cifs_async_readv,
1204 .async_writev = cifs_async_writev,
1205 .sync_read = cifs_sync_read,
1206 .sync_write = cifs_sync_write,
1207 .query_dir_first = cifs_query_dir_first,
1208 .query_dir_next = cifs_query_dir_next,
1209 .close_dir = cifs_close_dir,
1210 .calc_smb_size = smbCalcSize,
1211 .oplock_response = cifs_oplock_response,
1212 .queryfs = cifs_queryfs,
1213 .mand_lock = cifs_mand_lock,
1214 .mand_unlock_range = cifs_unlock_range,
1215 .push_mand_locks = cifs_push_mandatory_locks,
1216 .query_mf_symlink = cifs_query_mf_symlink,
1217 .create_mf_symlink = cifs_create_mf_symlink,
1218 .is_read_op = cifs_is_read_op,
1219 .wp_retry_size = cifs_wp_retry_size,
1220 .dir_needs_close = cifs_dir_needs_close,
1221 .select_sectype = cifs_select_sectype,
1222#ifdef CONFIG_CIFS_XATTR
1223 .query_all_EAs = CIFSSMBQAllEAs,
1224 .set_EA = CIFSSMBSetEA,
1225#endif /* CIFS_XATTR */
1226 .get_acl = get_cifs_acl,
1227 .get_acl_by_fid = get_cifs_acl_by_fid,
1228 .set_acl = set_cifs_acl,
1229 .make_node = cifs_make_node,
1230};
1231
1232struct smb_version_values smb1_values = {
1233 .version_string = SMB1_VERSION_STRING,
1234 .protocol_id = SMB10_PROT_ID,
1235 .large_lock_type = LOCKING_ANDX_LARGE_FILES,
1236 .exclusive_lock_type = 0,
1237 .shared_lock_type = LOCKING_ANDX_SHARED_LOCK,
1238 .unlock_lock_type = 0,
1239 .header_preamble_size = 4,
1240 .header_size = sizeof(struct smb_hdr),
1241 .max_header_size = MAX_CIFS_HDR_SIZE,
1242 .read_rsp_size = sizeof(READ_RSP),
1243 .lock_cmd = cpu_to_le16(SMB_COM_LOCKING_ANDX),
1244 .cap_unix = CAP_UNIX,
1245 .cap_nt_find = CAP_NT_SMBS | CAP_NT_FIND,
1246 .cap_large_files = CAP_LARGE_FILES,
1247 .signing_enabled = SECMODE_SIGN_ENABLED,
1248 .signing_required = SECMODE_SIGN_REQUIRED,
1249};