2 * SMB1 (CIFS) version specific operations
4 * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
6 * This library is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License v2 as published
8 * by the Free Software Foundation.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public License
16 * along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <linux/pagemap.h>
22 #include "cifsproto.h"
23 #include "cifs_debug.h"
27 * An NT cancel request header looks just like the original request except:
29 * The Command is SMB_COM_NT_CANCEL
30 * The WordCount is zeroed out
31 * The ByteCount is zeroed out
33 * This function mangles an existing request buffer into a
34 * SMB_COM_NT_CANCEL request and then sends it.
37 send_nt_cancel(struct TCP_Server_Info
*server
, void *buf
,
38 struct mid_q_entry
*mid
)
41 struct smb_hdr
*in_buf
= (struct smb_hdr
*)buf
;
43 /* -4 for RFC1001 length and +2 for BCC field */
44 in_buf
->smb_buf_length
= cpu_to_be32(sizeof(struct smb_hdr
) - 4 + 2);
45 in_buf
->Command
= SMB_COM_NT_CANCEL
;
46 in_buf
->WordCount
= 0;
49 mutex_lock(&server
->srv_mutex
);
50 rc
= cifs_sign_smb(in_buf
, server
, &mid
->sequence_number
);
52 mutex_unlock(&server
->srv_mutex
);
55 rc
= smb_send(server
, in_buf
, be32_to_cpu(in_buf
->smb_buf_length
));
56 mutex_unlock(&server
->srv_mutex
);
58 cFYI(1, "issued NT_CANCEL for mid %u, rc = %d",
65 cifs_compare_fids(struct cifsFileInfo
*ob1
, struct cifsFileInfo
*ob2
)
67 return ob1
->fid
.netfid
== ob2
->fid
.netfid
;
71 cifs_read_data_offset(char *buf
)
73 READ_RSP
*rsp
= (READ_RSP
*)buf
;
74 return le16_to_cpu(rsp
->DataOffset
);
78 cifs_read_data_length(char *buf
)
80 READ_RSP
*rsp
= (READ_RSP
*)buf
;
81 return (le16_to_cpu(rsp
->DataLengthHigh
) << 16) +
82 le16_to_cpu(rsp
->DataLength
);
85 static struct mid_q_entry
*
86 cifs_find_mid(struct TCP_Server_Info
*server
, char *buffer
)
88 struct smb_hdr
*buf
= (struct smb_hdr
*)buffer
;
89 struct mid_q_entry
*mid
;
91 spin_lock(&GlobalMid_Lock
);
92 list_for_each_entry(mid
, &server
->pending_mid_q
, qhead
) {
93 if (mid
->mid
== buf
->Mid
&&
94 mid
->mid_state
== MID_REQUEST_SUBMITTED
&&
95 le16_to_cpu(mid
->command
) == buf
->Command
) {
96 spin_unlock(&GlobalMid_Lock
);
100 spin_unlock(&GlobalMid_Lock
);
105 cifs_add_credits(struct TCP_Server_Info
*server
, const unsigned int add
,
108 spin_lock(&server
->req_lock
);
109 server
->credits
+= add
;
111 spin_unlock(&server
->req_lock
);
112 wake_up(&server
->request_q
);
116 cifs_set_credits(struct TCP_Server_Info
*server
, const int val
)
118 spin_lock(&server
->req_lock
);
119 server
->credits
= val
;
120 server
->oplocks
= val
> 1 ? enable_oplocks
: false;
121 spin_unlock(&server
->req_lock
);
125 cifs_get_credits_field(struct TCP_Server_Info
*server
, const int optype
)
127 return &server
->credits
;
131 cifs_get_credits(struct mid_q_entry
*mid
)
137 * Find a free multiplex id (SMB mid). Otherwise there could be
138 * mid collisions which might cause problems, demultiplexing the
139 * wrong response to this request. Multiplex ids could collide if
140 * one of a series requests takes much longer than the others, or
141 * if a very large number of long lived requests (byte range
142 * locks or FindNotify requests) are pending. No more than
143 * 64K-1 requests can be outstanding at one time. If no
144 * mids are available, return zero. A future optimization
145 * could make the combination of mids and uid the key we use
146 * to demultiplex on (rather than mid alone).
147 * In addition to the above check, the cifs demultiplex
148 * code already used the command code as a secondary
149 * check of the frame and if signing is negotiated the
150 * response would be discarded if the mid were the same
151 * but the signature was wrong. Since the mid is not put in the
152 * pending queue until later (when it is about to be dispatched)
153 * we do have to limit the number of outstanding requests
154 * to somewhat less than 64K-1 although it is hard to imagine
155 * so many threads being in the vfs at one time.
158 cifs_get_next_mid(struct TCP_Server_Info
*server
)
161 __u16 last_mid
, cur_mid
;
164 spin_lock(&GlobalMid_Lock
);
166 /* mid is 16 bit only for CIFS/SMB */
167 cur_mid
= (__u16
)((server
->CurrentMid
) & 0xffff);
168 /* we do not want to loop forever */
173 * This nested loop looks more expensive than it is.
174 * In practice the list of pending requests is short,
175 * fewer than 50, and the mids are likely to be unique
176 * on the first pass through the loop unless some request
177 * takes longer than the 64 thousand requests before it
178 * (and it would also have to have been a request that
181 while (cur_mid
!= last_mid
) {
182 struct mid_q_entry
*mid_entry
;
183 unsigned int num_mids
;
190 list_for_each_entry(mid_entry
, &server
->pending_mid_q
, qhead
) {
192 if (mid_entry
->mid
== cur_mid
&&
193 mid_entry
->mid_state
== MID_REQUEST_SUBMITTED
) {
194 /* This mid is in use, try a different one */
201 * if we have more than 32k mids in the list, then something
202 * is very wrong. Possibly a local user is trying to DoS the
203 * box by issuing long-running calls and SIGKILL'ing them. If
204 * we get to 2^16 mids then we're in big trouble as this
205 * function could loop forever.
207 * Go ahead and assign out the mid in this situation, but force
208 * an eventual reconnect to clean out the pending_mid_q.
210 if (num_mids
> 32768)
211 server
->tcpStatus
= CifsNeedReconnect
;
214 mid
= (__u64
)cur_mid
;
215 server
->CurrentMid
= mid
;
220 spin_unlock(&GlobalMid_Lock
);
226 0 not a transact2, or all data present
227 >0 transact2 with that much data missing
228 -EINVAL invalid transact2
231 check2ndT2(char *buf
)
233 struct smb_hdr
*pSMB
= (struct smb_hdr
*)buf
;
234 struct smb_t2_rsp
*pSMBt
;
236 __u16 total_data_size
, data_in_this_rsp
;
238 if (pSMB
->Command
!= SMB_COM_TRANSACTION2
)
241 /* check for plausible wct, bcc and t2 data and parm sizes */
242 /* check for parm and data offset going beyond end of smb */
243 if (pSMB
->WordCount
!= 10) { /* coalesce_t2 depends on this */
244 cFYI(1, "invalid transact2 word count");
248 pSMBt
= (struct smb_t2_rsp
*)pSMB
;
250 total_data_size
= get_unaligned_le16(&pSMBt
->t2_rsp
.TotalDataCount
);
251 data_in_this_rsp
= get_unaligned_le16(&pSMBt
->t2_rsp
.DataCount
);
253 if (total_data_size
== data_in_this_rsp
)
255 else if (total_data_size
< data_in_this_rsp
) {
256 cFYI(1, "total data %d smaller than data in frame %d",
257 total_data_size
, data_in_this_rsp
);
261 remaining
= total_data_size
- data_in_this_rsp
;
263 cFYI(1, "missing %d bytes from transact2, check next response",
265 if (total_data_size
> CIFSMaxBufSize
) {
266 cERROR(1, "TotalDataSize %d is over maximum buffer %d",
267 total_data_size
, CIFSMaxBufSize
);
274 coalesce_t2(char *second_buf
, struct smb_hdr
*target_hdr
)
276 struct smb_t2_rsp
*pSMBs
= (struct smb_t2_rsp
*)second_buf
;
277 struct smb_t2_rsp
*pSMBt
= (struct smb_t2_rsp
*)target_hdr
;
278 char *data_area_of_tgt
;
279 char *data_area_of_src
;
281 unsigned int byte_count
, total_in_tgt
;
282 __u16 tgt_total_cnt
, src_total_cnt
, total_in_src
;
284 src_total_cnt
= get_unaligned_le16(&pSMBs
->t2_rsp
.TotalDataCount
);
285 tgt_total_cnt
= get_unaligned_le16(&pSMBt
->t2_rsp
.TotalDataCount
);
287 if (tgt_total_cnt
!= src_total_cnt
)
288 cFYI(1, "total data count of primary and secondary t2 differ "
289 "source=%hu target=%hu", src_total_cnt
, tgt_total_cnt
);
291 total_in_tgt
= get_unaligned_le16(&pSMBt
->t2_rsp
.DataCount
);
293 remaining
= tgt_total_cnt
- total_in_tgt
;
296 cFYI(1, "Server sent too much data. tgt_total_cnt=%hu "
297 "total_in_tgt=%hu", tgt_total_cnt
, total_in_tgt
);
301 if (remaining
== 0) {
302 /* nothing to do, ignore */
303 cFYI(1, "no more data remains");
307 total_in_src
= get_unaligned_le16(&pSMBs
->t2_rsp
.DataCount
);
308 if (remaining
< total_in_src
)
309 cFYI(1, "transact2 2nd response contains too much data");
311 /* find end of first SMB data area */
312 data_area_of_tgt
= (char *)&pSMBt
->hdr
.Protocol
+
313 get_unaligned_le16(&pSMBt
->t2_rsp
.DataOffset
);
315 /* validate target area */
316 data_area_of_src
= (char *)&pSMBs
->hdr
.Protocol
+
317 get_unaligned_le16(&pSMBs
->t2_rsp
.DataOffset
);
319 data_area_of_tgt
+= total_in_tgt
;
321 total_in_tgt
+= total_in_src
;
322 /* is the result too big for the field? */
323 if (total_in_tgt
> USHRT_MAX
) {
324 cFYI(1, "coalesced DataCount too large (%u)", total_in_tgt
);
327 put_unaligned_le16(total_in_tgt
, &pSMBt
->t2_rsp
.DataCount
);
330 byte_count
= get_bcc(target_hdr
);
331 byte_count
+= total_in_src
;
332 /* is the result too big for the field? */
333 if (byte_count
> USHRT_MAX
) {
334 cFYI(1, "coalesced BCC too large (%u)", byte_count
);
337 put_bcc(byte_count
, target_hdr
);
339 byte_count
= be32_to_cpu(target_hdr
->smb_buf_length
);
340 byte_count
+= total_in_src
;
341 /* don't allow buffer to overflow */
342 if (byte_count
> CIFSMaxBufSize
+ MAX_CIFS_HDR_SIZE
- 4) {
343 cFYI(1, "coalesced BCC exceeds buffer size (%u)", byte_count
);
346 target_hdr
->smb_buf_length
= cpu_to_be32(byte_count
);
348 /* copy second buffer into end of first buffer */
349 memcpy(data_area_of_tgt
, data_area_of_src
, total_in_src
);
351 if (remaining
!= total_in_src
) {
352 /* more responses to go */
353 cFYI(1, "waiting for more secondary responses");
358 cFYI(1, "found the last secondary response");
363 cifs_check_trans2(struct mid_q_entry
*mid
, struct TCP_Server_Info
*server
,
364 char *buf
, int malformed
)
368 if (check2ndT2(buf
) <= 0)
370 mid
->multiRsp
= true;
372 /* merge response - fix up 1st*/
373 malformed
= coalesce_t2(buf
, mid
->resp_buf
);
376 /* All parts received or packet is malformed. */
377 mid
->multiEnd
= true;
378 dequeue_mid(mid
, malformed
);
381 if (!server
->large_buf
) {
382 /*FIXME: switch to already allocated largebuf?*/
383 cERROR(1, "1st trans2 resp needs bigbuf");
385 /* Have first buffer */
387 mid
->large_buf
= true;
388 server
->bigbuf
= NULL
;
394 cifs_need_neg(struct TCP_Server_Info
*server
)
396 return server
->maxBuf
== 0;
400 cifs_negotiate(const unsigned int xid
, struct cifs_ses
*ses
)
403 rc
= CIFSSMBNegotiate(xid
, ses
);
405 /* retry only once on 1st time connection */
406 set_credits(ses
->server
, 1);
407 rc
= CIFSSMBNegotiate(xid
, ses
);
415 cifs_negotiate_wsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
417 __u64 unix_cap
= le64_to_cpu(tcon
->fsUnixInfo
.Capability
);
418 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
421 /* start with specified wsize, or default */
422 if (volume_info
->wsize
)
423 wsize
= volume_info
->wsize
;
424 else if (tcon
->unix_ext
&& (unix_cap
& CIFS_UNIX_LARGE_WRITE_CAP
))
425 wsize
= CIFS_DEFAULT_IOSIZE
;
427 wsize
= CIFS_DEFAULT_NON_POSIX_WSIZE
;
429 /* can server support 24-bit write sizes? (via UNIX extensions) */
430 if (!tcon
->unix_ext
|| !(unix_cap
& CIFS_UNIX_LARGE_WRITE_CAP
))
431 wsize
= min_t(unsigned int, wsize
, CIFS_MAX_RFC1002_WSIZE
);
434 * no CAP_LARGE_WRITE_X or is signing enabled without CAP_UNIX set?
435 * Limit it to max buffer offered by the server, minus the size of the
436 * WRITEX header, not including the 4 byte RFC1001 length.
438 if (!(server
->capabilities
& CAP_LARGE_WRITE_X
) ||
439 (!(server
->capabilities
& CAP_UNIX
) &&
440 (server
->sec_mode
& (SECMODE_SIGN_ENABLED
|SECMODE_SIGN_REQUIRED
))))
441 wsize
= min_t(unsigned int, wsize
,
442 server
->maxBuf
- sizeof(WRITE_REQ
) + 4);
444 /* limit to the amount that we can kmap at once */
445 wsize
= min_t(unsigned int, wsize
, CIFS_KMAP_SIZE_LIMIT
);
447 /* hard limit of CIFS_MAX_WSIZE */
448 wsize
= min_t(unsigned int, wsize
, CIFS_MAX_WSIZE
);
454 cifs_negotiate_rsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
456 __u64 unix_cap
= le64_to_cpu(tcon
->fsUnixInfo
.Capability
);
457 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
458 unsigned int rsize
, defsize
;
461 * Set default value...
463 * HACK alert! Ancient servers have very small buffers. Even though
464 * MS-CIFS indicates that servers are only limited by the client's
465 * bufsize for reads, testing against win98se shows that it throws
466 * INVALID_PARAMETER errors if you try to request too large a read.
467 * OS/2 just sends back short reads.
469 * If the server doesn't advertise CAP_LARGE_READ_X, then assume that
470 * it can't handle a read request larger than its MaxBufferSize either.
472 if (tcon
->unix_ext
&& (unix_cap
& CIFS_UNIX_LARGE_READ_CAP
))
473 defsize
= CIFS_DEFAULT_IOSIZE
;
474 else if (server
->capabilities
& CAP_LARGE_READ_X
)
475 defsize
= CIFS_DEFAULT_NON_POSIX_RSIZE
;
477 defsize
= server
->maxBuf
- sizeof(READ_RSP
);
479 rsize
= volume_info
->rsize
? volume_info
->rsize
: defsize
;
482 * no CAP_LARGE_READ_X? Then MS-CIFS states that we must limit this to
483 * the client's MaxBufferSize.
485 if (!(server
->capabilities
& CAP_LARGE_READ_X
))
486 rsize
= min_t(unsigned int, CIFSMaxBufSize
, rsize
);
488 /* limit to the amount that we can kmap at once */
489 rsize
= min_t(unsigned int, rsize
, CIFS_KMAP_SIZE_LIMIT
);
491 /* hard limit of CIFS_MAX_RSIZE */
492 rsize
= min_t(unsigned int, rsize
, CIFS_MAX_RSIZE
);
498 cifs_qfs_tcon(const unsigned int xid
, struct cifs_tcon
*tcon
)
500 CIFSSMBQFSDeviceInfo(xid
, tcon
);
501 CIFSSMBQFSAttributeInfo(xid
, tcon
);
505 cifs_is_path_accessible(const unsigned int xid
, struct cifs_tcon
*tcon
,
506 struct cifs_sb_info
*cifs_sb
, const char *full_path
)
509 FILE_ALL_INFO
*file_info
;
511 file_info
= kmalloc(sizeof(FILE_ALL_INFO
), GFP_KERNEL
);
512 if (file_info
== NULL
)
515 rc
= CIFSSMBQPathInfo(xid
, tcon
, full_path
, file_info
,
516 0 /* not legacy */, cifs_sb
->local_nls
,
517 cifs_sb
->mnt_cifs_flags
&
518 CIFS_MOUNT_MAP_SPECIAL_CHR
);
520 if (rc
== -EOPNOTSUPP
|| rc
== -EINVAL
)
521 rc
= SMBQueryInformation(xid
, tcon
, full_path
, file_info
,
522 cifs_sb
->local_nls
, cifs_sb
->mnt_cifs_flags
&
523 CIFS_MOUNT_MAP_SPECIAL_CHR
);
529 cifs_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
530 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
531 FILE_ALL_INFO
*data
, bool *adjustTZ
)
535 /* could do find first instead but this returns more info */
536 rc
= CIFSSMBQPathInfo(xid
, tcon
, full_path
, data
, 0 /* not legacy */,
537 cifs_sb
->local_nls
, cifs_sb
->mnt_cifs_flags
&
538 CIFS_MOUNT_MAP_SPECIAL_CHR
);
540 * BB optimize code so we do not make the above call when server claims
541 * no NT SMB support and the above call failed at least once - set flag
544 if ((rc
== -EOPNOTSUPP
) || (rc
== -EINVAL
)) {
545 rc
= SMBQueryInformation(xid
, tcon
, full_path
, data
,
547 cifs_sb
->mnt_cifs_flags
&
548 CIFS_MOUNT_MAP_SPECIAL_CHR
);
555 cifs_get_srv_inum(const unsigned int xid
, struct cifs_tcon
*tcon
,
556 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
557 u64
*uniqueid
, FILE_ALL_INFO
*data
)
560 * We can not use the IndexNumber field by default from Windows or
561 * Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA
562 * CIFS spec claims that this value is unique within the scope of a
563 * share, and the windows docs hint that it's actually unique
566 * There may be higher info levels that work but are there Windows
567 * server or network appliances for which IndexNumber field is not
570 return CIFSGetSrvInodeNumber(xid
, tcon
, full_path
, uniqueid
,
572 cifs_sb
->mnt_cifs_flags
&
573 CIFS_MOUNT_MAP_SPECIAL_CHR
);
577 cifs_query_file_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
578 struct cifs_fid
*fid
, FILE_ALL_INFO
*data
)
580 return CIFSSMBQFileInfo(xid
, tcon
, fid
->netfid
, data
);
584 cifs_build_path_to_root(struct smb_vol
*vol
, struct cifs_sb_info
*cifs_sb
,
585 struct cifs_tcon
*tcon
)
587 int pplen
= vol
->prepath
? strlen(vol
->prepath
) : 0;
589 char *full_path
= NULL
;
591 /* if no prefix path, simply set path to the root of share to "" */
593 full_path
= kzalloc(1, GFP_KERNEL
);
597 if (tcon
->Flags
& SMB_SHARE_IS_IN_DFS
)
598 dfsplen
= strnlen(tcon
->treeName
, MAX_TREE_SIZE
+ 1);
602 full_path
= kmalloc(dfsplen
+ pplen
+ 1, GFP_KERNEL
);
603 if (full_path
== NULL
)
607 strncpy(full_path
, tcon
->treeName
, dfsplen
);
608 strncpy(full_path
+ dfsplen
, vol
->prepath
, pplen
);
609 convert_delimiter(full_path
, CIFS_DIR_SEP(cifs_sb
));
610 full_path
[dfsplen
+ pplen
] = 0; /* add trailing null */
615 cifs_clear_stats(struct cifs_tcon
*tcon
)
617 #ifdef CONFIG_CIFS_STATS
618 atomic_set(&tcon
->stats
.cifs_stats
.num_writes
, 0);
619 atomic_set(&tcon
->stats
.cifs_stats
.num_reads
, 0);
620 atomic_set(&tcon
->stats
.cifs_stats
.num_flushes
, 0);
621 atomic_set(&tcon
->stats
.cifs_stats
.num_oplock_brks
, 0);
622 atomic_set(&tcon
->stats
.cifs_stats
.num_opens
, 0);
623 atomic_set(&tcon
->stats
.cifs_stats
.num_posixopens
, 0);
624 atomic_set(&tcon
->stats
.cifs_stats
.num_posixmkdirs
, 0);
625 atomic_set(&tcon
->stats
.cifs_stats
.num_closes
, 0);
626 atomic_set(&tcon
->stats
.cifs_stats
.num_deletes
, 0);
627 atomic_set(&tcon
->stats
.cifs_stats
.num_mkdirs
, 0);
628 atomic_set(&tcon
->stats
.cifs_stats
.num_rmdirs
, 0);
629 atomic_set(&tcon
->stats
.cifs_stats
.num_renames
, 0);
630 atomic_set(&tcon
->stats
.cifs_stats
.num_t2renames
, 0);
631 atomic_set(&tcon
->stats
.cifs_stats
.num_ffirst
, 0);
632 atomic_set(&tcon
->stats
.cifs_stats
.num_fnext
, 0);
633 atomic_set(&tcon
->stats
.cifs_stats
.num_fclose
, 0);
634 atomic_set(&tcon
->stats
.cifs_stats
.num_hardlinks
, 0);
635 atomic_set(&tcon
->stats
.cifs_stats
.num_symlinks
, 0);
636 atomic_set(&tcon
->stats
.cifs_stats
.num_locks
, 0);
637 atomic_set(&tcon
->stats
.cifs_stats
.num_acl_get
, 0);
638 atomic_set(&tcon
->stats
.cifs_stats
.num_acl_set
, 0);
643 cifs_print_stats(struct seq_file
*m
, struct cifs_tcon
*tcon
)
645 #ifdef CONFIG_CIFS_STATS
646 seq_printf(m
, " Oplocks breaks: %d",
647 atomic_read(&tcon
->stats
.cifs_stats
.num_oplock_brks
));
648 seq_printf(m
, "\nReads: %d Bytes: %llu",
649 atomic_read(&tcon
->stats
.cifs_stats
.num_reads
),
650 (long long)(tcon
->bytes_read
));
651 seq_printf(m
, "\nWrites: %d Bytes: %llu",
652 atomic_read(&tcon
->stats
.cifs_stats
.num_writes
),
653 (long long)(tcon
->bytes_written
));
654 seq_printf(m
, "\nFlushes: %d",
655 atomic_read(&tcon
->stats
.cifs_stats
.num_flushes
));
656 seq_printf(m
, "\nLocks: %d HardLinks: %d Symlinks: %d",
657 atomic_read(&tcon
->stats
.cifs_stats
.num_locks
),
658 atomic_read(&tcon
->stats
.cifs_stats
.num_hardlinks
),
659 atomic_read(&tcon
->stats
.cifs_stats
.num_symlinks
));
660 seq_printf(m
, "\nOpens: %d Closes: %d Deletes: %d",
661 atomic_read(&tcon
->stats
.cifs_stats
.num_opens
),
662 atomic_read(&tcon
->stats
.cifs_stats
.num_closes
),
663 atomic_read(&tcon
->stats
.cifs_stats
.num_deletes
));
664 seq_printf(m
, "\nPosix Opens: %d Posix Mkdirs: %d",
665 atomic_read(&tcon
->stats
.cifs_stats
.num_posixopens
),
666 atomic_read(&tcon
->stats
.cifs_stats
.num_posixmkdirs
));
667 seq_printf(m
, "\nMkdirs: %d Rmdirs: %d",
668 atomic_read(&tcon
->stats
.cifs_stats
.num_mkdirs
),
669 atomic_read(&tcon
->stats
.cifs_stats
.num_rmdirs
));
670 seq_printf(m
, "\nRenames: %d T2 Renames %d",
671 atomic_read(&tcon
->stats
.cifs_stats
.num_renames
),
672 atomic_read(&tcon
->stats
.cifs_stats
.num_t2renames
));
673 seq_printf(m
, "\nFindFirst: %d FNext %d FClose %d",
674 atomic_read(&tcon
->stats
.cifs_stats
.num_ffirst
),
675 atomic_read(&tcon
->stats
.cifs_stats
.num_fnext
),
676 atomic_read(&tcon
->stats
.cifs_stats
.num_fclose
));
681 cifs_mkdir_setinfo(struct inode
*inode
, const char *full_path
,
682 struct cifs_sb_info
*cifs_sb
, struct cifs_tcon
*tcon
,
683 const unsigned int xid
)
685 FILE_BASIC_INFO info
;
686 struct cifsInodeInfo
*cifsInode
;
690 memset(&info
, 0, sizeof(info
));
691 cifsInode
= CIFS_I(inode
);
692 dosattrs
= cifsInode
->cifsAttrs
|ATTR_READONLY
;
693 info
.Attributes
= cpu_to_le32(dosattrs
);
694 rc
= CIFSSMBSetPathInfo(xid
, tcon
, full_path
, &info
, cifs_sb
->local_nls
,
695 cifs_sb
->mnt_cifs_flags
&
696 CIFS_MOUNT_MAP_SPECIAL_CHR
);
698 cifsInode
->cifsAttrs
= dosattrs
;
702 cifs_open_file(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *path
,
703 int disposition
, int desired_access
, int create_options
,
704 struct cifs_fid
*fid
, __u32
*oplock
, FILE_ALL_INFO
*buf
,
705 struct cifs_sb_info
*cifs_sb
)
707 if (!(tcon
->ses
->capabilities
& CAP_NT_SMBS
))
708 return SMBLegacyOpen(xid
, tcon
, path
, disposition
,
709 desired_access
, create_options
,
710 &fid
->netfid
, oplock
, buf
,
711 cifs_sb
->local_nls
, cifs_sb
->mnt_cifs_flags
712 & CIFS_MOUNT_MAP_SPECIAL_CHR
);
713 return CIFSSMBOpen(xid
, tcon
, path
, disposition
, desired_access
,
714 create_options
, &fid
->netfid
, oplock
, buf
,
715 cifs_sb
->local_nls
, cifs_sb
->mnt_cifs_flags
&
716 CIFS_MOUNT_MAP_SPECIAL_CHR
);
720 cifs_set_fid(struct cifsFileInfo
*cfile
, struct cifs_fid
*fid
, __u32 oplock
)
722 struct cifsInodeInfo
*cinode
= CIFS_I(cfile
->dentry
->d_inode
);
723 cfile
->fid
.netfid
= fid
->netfid
;
724 cifs_set_oplock_level(cinode
, oplock
);
725 cinode
->can_cache_brlcks
= cinode
->clientCanCacheAll
;
729 cifs_close_file(const unsigned int xid
, struct cifs_tcon
*tcon
,
730 struct cifs_fid
*fid
)
732 return CIFSSMBClose(xid
, tcon
, fid
->netfid
);
736 cifs_flush_file(const unsigned int xid
, struct cifs_tcon
*tcon
,
737 struct cifs_fid
*fid
)
739 return CIFSSMBFlush(xid
, tcon
, fid
->netfid
);
742 struct smb_version_operations smb1_operations
= {
743 .send_cancel
= send_nt_cancel
,
744 .compare_fids
= cifs_compare_fids
,
745 .setup_request
= cifs_setup_request
,
746 .setup_async_request
= cifs_setup_async_request
,
747 .check_receive
= cifs_check_receive
,
748 .add_credits
= cifs_add_credits
,
749 .set_credits
= cifs_set_credits
,
750 .get_credits_field
= cifs_get_credits_field
,
751 .get_credits
= cifs_get_credits
,
752 .get_next_mid
= cifs_get_next_mid
,
753 .read_data_offset
= cifs_read_data_offset
,
754 .read_data_length
= cifs_read_data_length
,
755 .map_error
= map_smb_to_linux_error
,
756 .find_mid
= cifs_find_mid
,
757 .check_message
= checkSMB
,
758 .dump_detail
= cifs_dump_detail
,
759 .clear_stats
= cifs_clear_stats
,
760 .print_stats
= cifs_print_stats
,
761 .is_oplock_break
= is_valid_oplock_break
,
762 .check_trans2
= cifs_check_trans2
,
763 .need_neg
= cifs_need_neg
,
764 .negotiate
= cifs_negotiate
,
765 .negotiate_wsize
= cifs_negotiate_wsize
,
766 .negotiate_rsize
= cifs_negotiate_rsize
,
767 .sess_setup
= CIFS_SessSetup
,
768 .logoff
= CIFSSMBLogoff
,
769 .tree_connect
= CIFSTCon
,
770 .tree_disconnect
= CIFSSMBTDis
,
771 .get_dfs_refer
= CIFSGetDFSRefer
,
772 .qfs_tcon
= cifs_qfs_tcon
,
773 .is_path_accessible
= cifs_is_path_accessible
,
774 .query_path_info
= cifs_query_path_info
,
775 .query_file_info
= cifs_query_file_info
,
776 .get_srv_inum
= cifs_get_srv_inum
,
777 .build_path_to_root
= cifs_build_path_to_root
,
779 .mkdir
= CIFSSMBMkDir
,
780 .mkdir_setinfo
= cifs_mkdir_setinfo
,
781 .rmdir
= CIFSSMBRmDir
,
782 .unlink
= CIFSSMBDelFile
,
783 .rename_pending_delete
= cifs_rename_pending_delete
,
784 .open
= cifs_open_file
,
785 .set_fid
= cifs_set_fid
,
786 .close
= cifs_close_file
,
787 .flush
= cifs_flush_file
,
790 struct smb_version_values smb1_values
= {
791 .version_string
= SMB1_VERSION_STRING
,
792 .large_lock_type
= LOCKING_ANDX_LARGE_FILES
,
793 .exclusive_lock_type
= 0,
794 .shared_lock_type
= LOCKING_ANDX_SHARED_LOCK
,
795 .unlock_lock_type
= 0,
796 .header_size
= sizeof(struct smb_hdr
),
797 .max_header_size
= MAX_CIFS_HDR_SIZE
,
798 .read_rsp_size
= sizeof(READ_RSP
),
799 .lock_cmd
= cpu_to_le16(SMB_COM_LOCKING_ANDX
),
800 .cap_unix
= CAP_UNIX
,
801 .cap_nt_find
= CAP_NT_SMBS
| CAP_NT_FIND
,
802 .cap_large_files
= CAP_LARGE_FILES
,