2 * SMB2 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>
21 #include <linux/vfs.h>
24 #include "smb2proto.h"
25 #include "cifsproto.h"
26 #include "cifs_debug.h"
27 #include "smb2status.h"
31 change_conf(struct TCP_Server_Info *server)
33 server->credits += server->echo_credits + server->oplock_credits;
34 server->oplock_credits = server->echo_credits = 0;
35 switch (server->credits) {
39 server->echoes = false;
40 server->oplocks = false;
41 cifs_dbg(VFS, "disabling echoes and oplocks\n");
44 server->echoes = true;
45 server->oplocks = false;
46 server->echo_credits = 1;
47 cifs_dbg(FYI, "disabling oplocks\n");
50 server->echoes = true;
51 server->oplocks = true;
52 server->echo_credits = 1;
53 server->oplock_credits = 1;
55 server->credits -= server->echo_credits + server->oplock_credits;
60 smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
64 spin_lock(&server->req_lock);
65 val = server->ops->get_credits_field(server, optype);
68 if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP)
69 rc = change_conf(server);
71 * Sometimes server returns 0 credits on oplock break ack - we need to
72 * rebalance credits in this case.
74 else if (server->in_flight > 0 && server->oplock_credits == 0 &&
76 if (server->credits > 1) {
78 server->oplock_credits++;
81 spin_unlock(&server->req_lock);
82 wake_up(&server->request_q);
84 cifs_reconnect(server);
88 smb2_set_credits(struct TCP_Server_Info *server, const int val)
90 spin_lock(&server->req_lock);
91 server->credits = val;
92 spin_unlock(&server->req_lock);
96 smb2_get_credits_field(struct TCP_Server_Info *server, const int optype)
100 return &server->echo_credits;
102 return &server->oplock_credits;
104 return &server->credits;
109 smb2_get_credits(struct mid_q_entry *mid)
111 return le16_to_cpu(((struct smb2_hdr *)mid->resp_buf)->CreditRequest);
115 smb2_get_next_mid(struct TCP_Server_Info *server)
118 /* for SMB2 we need the current value */
119 spin_lock(&GlobalMid_Lock);
120 mid = server->CurrentMid++;
121 spin_unlock(&GlobalMid_Lock);
125 static struct mid_q_entry *
126 smb2_find_mid(struct TCP_Server_Info *server, char *buf)
128 struct mid_q_entry *mid;
129 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
131 spin_lock(&GlobalMid_Lock);
132 list_for_each_entry(mid, &server->pending_mid_q, qhead) {
133 if ((mid->mid == hdr->MessageId) &&
134 (mid->mid_state == MID_REQUEST_SUBMITTED) &&
135 (mid->command == hdr->Command)) {
136 spin_unlock(&GlobalMid_Lock);
140 spin_unlock(&GlobalMid_Lock);
145 smb2_dump_detail(void *buf)
147 #ifdef CONFIG_CIFS_DEBUG2
148 struct smb2_hdr *smb = (struct smb2_hdr *)buf;
150 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
151 smb->Command, smb->Status, smb->Flags, smb->MessageId,
153 cifs_dbg(VFS, "smb buf %p len %u\n", smb, smb2_calc_size(smb));
158 smb2_need_neg(struct TCP_Server_Info *server)
160 return server->max_read == 0;
164 smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
167 ses->server->CurrentMid = 0;
168 rc = SMB2_negotiate(xid, ses);
169 /* BB we probably don't need to retry with modern servers */
176 smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
178 struct TCP_Server_Info *server = tcon->ses->server;
181 /* start with specified wsize, or default */
182 wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE;
183 wsize = min_t(unsigned int, wsize, server->max_write);
184 /* set it to the maximum buffer size value we can send with 1 credit */
185 wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE);
191 smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
193 struct TCP_Server_Info *server = tcon->ses->server;
196 /* start with specified rsize, or default */
197 rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE;
198 rsize = min_t(unsigned int, rsize, server->max_read);
199 /* set it to the maximum buffer size value we can send with 1 credit */
200 rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE);
206 smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
207 struct cifs_sb_info *cifs_sb, const char *full_path)
210 __u64 persistent_fid, volatile_fid;
212 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
214 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
218 rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
219 FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0, &oplock, NULL);
225 rc = SMB2_close(xid, tcon, persistent_fid, volatile_fid);
231 smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
232 struct cifs_sb_info *cifs_sb, const char *full_path,
233 u64 *uniqueid, FILE_ALL_INFO *data)
235 *uniqueid = le64_to_cpu(data->IndexNumber);
240 smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
241 struct cifs_fid *fid, FILE_ALL_INFO *data)
244 struct smb2_file_all_info *smb2_data;
246 smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
248 if (smb2_data == NULL)
251 rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid,
254 move_smb2_info_to_cifs(data, smb2_data);
260 smb2_can_echo(struct TCP_Server_Info *server)
262 return server->echoes;
266 smb2_clear_stats(struct cifs_tcon *tcon)
268 #ifdef CONFIG_CIFS_STATS
270 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
271 atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
272 atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
278 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
280 #ifdef CONFIG_CIFS_STATS
281 atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
282 atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
283 seq_printf(m, "\nNegotiates: %d sent %d failed",
284 atomic_read(&sent[SMB2_NEGOTIATE_HE]),
285 atomic_read(&failed[SMB2_NEGOTIATE_HE]));
286 seq_printf(m, "\nSessionSetups: %d sent %d failed",
287 atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
288 atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
289 #define SMB2LOGOFF 0x0002 /* trivial request/resp */
290 seq_printf(m, "\nLogoffs: %d sent %d failed",
291 atomic_read(&sent[SMB2_LOGOFF_HE]),
292 atomic_read(&failed[SMB2_LOGOFF_HE]));
293 seq_printf(m, "\nTreeConnects: %d sent %d failed",
294 atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
295 atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
296 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
297 atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
298 atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
299 seq_printf(m, "\nCreates: %d sent %d failed",
300 atomic_read(&sent[SMB2_CREATE_HE]),
301 atomic_read(&failed[SMB2_CREATE_HE]));
302 seq_printf(m, "\nCloses: %d sent %d failed",
303 atomic_read(&sent[SMB2_CLOSE_HE]),
304 atomic_read(&failed[SMB2_CLOSE_HE]));
305 seq_printf(m, "\nFlushes: %d sent %d failed",
306 atomic_read(&sent[SMB2_FLUSH_HE]),
307 atomic_read(&failed[SMB2_FLUSH_HE]));
308 seq_printf(m, "\nReads: %d sent %d failed",
309 atomic_read(&sent[SMB2_READ_HE]),
310 atomic_read(&failed[SMB2_READ_HE]));
311 seq_printf(m, "\nWrites: %d sent %d failed",
312 atomic_read(&sent[SMB2_WRITE_HE]),
313 atomic_read(&failed[SMB2_WRITE_HE]));
314 seq_printf(m, "\nLocks: %d sent %d failed",
315 atomic_read(&sent[SMB2_LOCK_HE]),
316 atomic_read(&failed[SMB2_LOCK_HE]));
317 seq_printf(m, "\nIOCTLs: %d sent %d failed",
318 atomic_read(&sent[SMB2_IOCTL_HE]),
319 atomic_read(&failed[SMB2_IOCTL_HE]));
320 seq_printf(m, "\nCancels: %d sent %d failed",
321 atomic_read(&sent[SMB2_CANCEL_HE]),
322 atomic_read(&failed[SMB2_CANCEL_HE]));
323 seq_printf(m, "\nEchos: %d sent %d failed",
324 atomic_read(&sent[SMB2_ECHO_HE]),
325 atomic_read(&failed[SMB2_ECHO_HE]));
326 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
327 atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
328 atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
329 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
330 atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
331 atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
332 seq_printf(m, "\nQueryInfos: %d sent %d failed",
333 atomic_read(&sent[SMB2_QUERY_INFO_HE]),
334 atomic_read(&failed[SMB2_QUERY_INFO_HE]));
335 seq_printf(m, "\nSetInfos: %d sent %d failed",
336 atomic_read(&sent[SMB2_SET_INFO_HE]),
337 atomic_read(&failed[SMB2_SET_INFO_HE]));
338 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
339 atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
340 atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
345 smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
347 struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
348 cfile->fid.persistent_fid = fid->persistent_fid;
349 cfile->fid.volatile_fid = fid->volatile_fid;
350 smb2_set_oplock_level(cinode, oplock);
351 cinode->can_cache_brlcks = cinode->clientCanCacheAll;
355 smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
356 struct cifs_fid *fid)
358 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
362 smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
363 struct cifs_fid *fid)
365 return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
369 smb2_read_data_offset(char *buf)
371 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
372 return rsp->DataOffset;
376 smb2_read_data_length(char *buf)
378 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
379 return le32_to_cpu(rsp->DataLength);
384 smb2_sync_read(const unsigned int xid, struct cifsFileInfo *cfile,
385 struct cifs_io_parms *parms, unsigned int *bytes_read,
386 char **buf, int *buf_type)
388 parms->persistent_fid = cfile->fid.persistent_fid;
389 parms->volatile_fid = cfile->fid.volatile_fid;
390 return SMB2_read(xid, parms, bytes_read, buf, buf_type);
394 smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile,
395 struct cifs_io_parms *parms, unsigned int *written,
396 struct kvec *iov, unsigned long nr_segs)
399 parms->persistent_fid = cfile->fid.persistent_fid;
400 parms->volatile_fid = cfile->fid.volatile_fid;
401 return SMB2_write(xid, parms, written, iov, nr_segs);
405 smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
406 struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
408 __le64 eof = cpu_to_le64(size);
409 return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
410 cfile->fid.volatile_fid, cfile->pid, &eof);
414 smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
415 const char *path, struct cifs_sb_info *cifs_sb,
416 struct cifs_fid *fid, __u16 search_flags,
417 struct cifs_search_info *srch_inf)
421 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
422 __u64 persistent_fid, volatile_fid;
424 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
428 rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
429 FILE_READ_ATTRIBUTES | FILE_READ_DATA, FILE_OPEN, 0, 0,
433 cifs_dbg(VFS, "open dir failed\n");
437 srch_inf->entries_in_buffer = 0;
438 srch_inf->index_of_last_entry = 0;
439 fid->persistent_fid = persistent_fid;
440 fid->volatile_fid = volatile_fid;
442 rc = SMB2_query_directory(xid, tcon, persistent_fid, volatile_fid, 0,
445 cifs_dbg(VFS, "query directory failed\n");
446 SMB2_close(xid, tcon, persistent_fid, volatile_fid);
452 smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
453 struct cifs_fid *fid, __u16 search_flags,
454 struct cifs_search_info *srch_inf)
456 return SMB2_query_directory(xid, tcon, fid->persistent_fid,
457 fid->volatile_fid, 0, srch_inf);
461 smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
462 struct cifs_fid *fid)
464 return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
468 * If we negotiate SMB2 protocol and get STATUS_PENDING - update
469 * the number of credits and return true. Otherwise - return false.
472 smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length)
474 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
476 if (hdr->Status != STATUS_PENDING)
480 spin_lock(&server->req_lock);
481 server->credits += le16_to_cpu(hdr->CreditRequest);
482 spin_unlock(&server->req_lock);
483 wake_up(&server->request_q);
490 smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
491 struct cifsInodeInfo *cinode)
493 if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING)
494 return SMB2_lease_break(0, tcon, cinode->lease_key,
495 smb2_get_lease_state(cinode));
497 return SMB2_oplock_break(0, tcon, fid->persistent_fid,
499 cinode->clientCanCacheRead ? 1 : 0);
503 smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
507 u64 persistent_fid, volatile_fid;
508 __le16 srch_path = 0; /* Null - open root of share */
509 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
511 rc = SMB2_open(xid, tcon, &srch_path, &persistent_fid, &volatile_fid,
512 FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0, &oplock, NULL);
515 buf->f_type = SMB2_MAGIC_NUMBER;
516 rc = SMB2_QFS_info(xid, tcon, persistent_fid, volatile_fid, buf);
517 SMB2_close(xid, tcon, persistent_fid, volatile_fid);
522 smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
524 return ob1->fid.persistent_fid == ob2->fid.persistent_fid &&
525 ob1->fid.volatile_fid == ob2->fid.volatile_fid;
529 smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
530 __u64 length, __u32 type, int lock, int unlock, bool wait)
533 type = SMB2_LOCKFLAG_UNLOCK;
534 return SMB2_lock(xid, tlink_tcon(cfile->tlink),
535 cfile->fid.persistent_fid, cfile->fid.volatile_fid,
536 current->tgid, length, offset, type, wait);
540 smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid)
542 memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE);
546 smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid)
548 memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
552 smb2_new_lease_key(struct cifs_fid *fid)
554 get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE);
557 struct smb_version_operations smb21_operations = {
558 .compare_fids = smb2_compare_fids,
559 .setup_request = smb2_setup_request,
560 .setup_async_request = smb2_setup_async_request,
561 .check_receive = smb2_check_receive,
562 .add_credits = smb2_add_credits,
563 .set_credits = smb2_set_credits,
564 .get_credits_field = smb2_get_credits_field,
565 .get_credits = smb2_get_credits,
566 .get_next_mid = smb2_get_next_mid,
567 .read_data_offset = smb2_read_data_offset,
568 .read_data_length = smb2_read_data_length,
569 .map_error = map_smb2_to_linux_error,
570 .find_mid = smb2_find_mid,
571 .check_message = smb2_check_message,
572 .dump_detail = smb2_dump_detail,
573 .clear_stats = smb2_clear_stats,
574 .print_stats = smb2_print_stats,
575 .is_oplock_break = smb2_is_valid_oplock_break,
576 .need_neg = smb2_need_neg,
577 .negotiate = smb2_negotiate,
578 .negotiate_wsize = smb2_negotiate_wsize,
579 .negotiate_rsize = smb2_negotiate_rsize,
580 .sess_setup = SMB2_sess_setup,
581 .logoff = SMB2_logoff,
582 .tree_connect = SMB2_tcon,
583 .tree_disconnect = SMB2_tdis,
584 .is_path_accessible = smb2_is_path_accessible,
585 .can_echo = smb2_can_echo,
587 .query_path_info = smb2_query_path_info,
588 .get_srv_inum = smb2_get_srv_inum,
589 .query_file_info = smb2_query_file_info,
590 .set_path_size = smb2_set_path_size,
591 .set_file_size = smb2_set_file_size,
592 .set_file_info = smb2_set_file_info,
594 .mkdir_setinfo = smb2_mkdir_setinfo,
596 .unlink = smb2_unlink,
597 .rename = smb2_rename_path,
598 .create_hardlink = smb2_create_hardlink,
599 .open = smb2_open_file,
600 .set_fid = smb2_set_fid,
601 .close = smb2_close_file,
602 .flush = smb2_flush_file,
603 .async_readv = smb2_async_readv,
604 .async_writev = smb2_async_writev,
605 .sync_read = smb2_sync_read,
606 .sync_write = smb2_sync_write,
607 .query_dir_first = smb2_query_dir_first,
608 .query_dir_next = smb2_query_dir_next,
609 .close_dir = smb2_close_dir,
610 .calc_smb_size = smb2_calc_size,
611 .is_status_pending = smb2_is_status_pending,
612 .oplock_response = smb2_oplock_response,
613 .queryfs = smb2_queryfs,
614 .mand_lock = smb2_mand_lock,
615 .mand_unlock_range = smb2_unlock_range,
616 .push_mand_locks = smb2_push_mandatory_locks,
617 .get_lease_key = smb2_get_lease_key,
618 .set_lease_key = smb2_set_lease_key,
619 .new_lease_key = smb2_new_lease_key,
620 .calc_signature = smb2_calc_signature,
624 struct smb_version_operations smb30_operations = {
625 .compare_fids = smb2_compare_fids,
626 .setup_request = smb2_setup_request,
627 .setup_async_request = smb2_setup_async_request,
628 .check_receive = smb2_check_receive,
629 .add_credits = smb2_add_credits,
630 .set_credits = smb2_set_credits,
631 .get_credits_field = smb2_get_credits_field,
632 .get_credits = smb2_get_credits,
633 .get_next_mid = smb2_get_next_mid,
634 .read_data_offset = smb2_read_data_offset,
635 .read_data_length = smb2_read_data_length,
636 .map_error = map_smb2_to_linux_error,
637 .find_mid = smb2_find_mid,
638 .check_message = smb2_check_message,
639 .dump_detail = smb2_dump_detail,
640 .clear_stats = smb2_clear_stats,
641 .print_stats = smb2_print_stats,
642 .is_oplock_break = smb2_is_valid_oplock_break,
643 .need_neg = smb2_need_neg,
644 .negotiate = smb2_negotiate,
645 .negotiate_wsize = smb2_negotiate_wsize,
646 .negotiate_rsize = smb2_negotiate_rsize,
647 .sess_setup = SMB2_sess_setup,
648 .logoff = SMB2_logoff,
649 .tree_connect = SMB2_tcon,
650 .tree_disconnect = SMB2_tdis,
651 .is_path_accessible = smb2_is_path_accessible,
652 .can_echo = smb2_can_echo,
654 .query_path_info = smb2_query_path_info,
655 .get_srv_inum = smb2_get_srv_inum,
656 .query_file_info = smb2_query_file_info,
657 .set_path_size = smb2_set_path_size,
658 .set_file_size = smb2_set_file_size,
659 .set_file_info = smb2_set_file_info,
661 .mkdir_setinfo = smb2_mkdir_setinfo,
663 .unlink = smb2_unlink,
664 .rename = smb2_rename_path,
665 .create_hardlink = smb2_create_hardlink,
666 .open = smb2_open_file,
667 .set_fid = smb2_set_fid,
668 .close = smb2_close_file,
669 .flush = smb2_flush_file,
670 .async_readv = smb2_async_readv,
671 .async_writev = smb2_async_writev,
672 .sync_read = smb2_sync_read,
673 .sync_write = smb2_sync_write,
674 .query_dir_first = smb2_query_dir_first,
675 .query_dir_next = smb2_query_dir_next,
676 .close_dir = smb2_close_dir,
677 .calc_smb_size = smb2_calc_size,
678 .is_status_pending = smb2_is_status_pending,
679 .oplock_response = smb2_oplock_response,
680 .queryfs = smb2_queryfs,
681 .mand_lock = smb2_mand_lock,
682 .mand_unlock_range = smb2_unlock_range,
683 .push_mand_locks = smb2_push_mandatory_locks,
684 .get_lease_key = smb2_get_lease_key,
685 .set_lease_key = smb2_set_lease_key,
686 .new_lease_key = smb2_new_lease_key,
687 .calc_signature = smb3_calc_signature,
690 struct smb_version_values smb20_values = {
691 .version_string = SMB20_VERSION_STRING,
692 .protocol_id = SMB20_PROT_ID,
693 .req_capabilities = 0, /* MBZ */
694 .large_lock_type = 0,
695 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
696 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
697 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
698 .header_size = sizeof(struct smb2_hdr),
699 .max_header_size = MAX_SMB2_HDR_SIZE,
700 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
701 .lock_cmd = SMB2_LOCK,
703 .cap_nt_find = SMB2_NT_FIND,
704 .cap_large_files = SMB2_LARGE_FILES,
705 .oplock_read = SMB2_OPLOCK_LEVEL_II,
708 struct smb_version_values smb21_values = {
709 .version_string = SMB21_VERSION_STRING,
710 .protocol_id = SMB21_PROT_ID,
711 .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */
712 .large_lock_type = 0,
713 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
714 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
715 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
716 .header_size = sizeof(struct smb2_hdr),
717 .max_header_size = MAX_SMB2_HDR_SIZE,
718 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
719 .lock_cmd = SMB2_LOCK,
721 .cap_nt_find = SMB2_NT_FIND,
722 .cap_large_files = SMB2_LARGE_FILES,
723 .oplock_read = SMB2_OPLOCK_LEVEL_II,
726 struct smb_version_values smb30_values = {
727 .version_string = SMB30_VERSION_STRING,
728 .protocol_id = SMB30_PROT_ID,
729 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,
730 .large_lock_type = 0,
731 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
732 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
733 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
734 .header_size = sizeof(struct smb2_hdr),
735 .max_header_size = MAX_SMB2_HDR_SIZE,
736 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
737 .lock_cmd = SMB2_LOCK,
739 .cap_nt_find = SMB2_NT_FIND,
740 .cap_large_files = SMB2_LARGE_FILES,
741 .oplock_read = SMB2_OPLOCK_LEVEL_II,