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>
22 #include <linux/falloc.h>
25 #include "smb2proto.h"
26 #include "cifsproto.h"
27 #include "cifs_debug.h"
28 #include "cifs_unicode.h"
29 #include "smb2status.h"
33 change_conf(struct TCP_Server_Info *server)
35 server->credits += server->echo_credits + server->oplock_credits;
36 server->oplock_credits = server->echo_credits = 0;
37 switch (server->credits) {
41 server->echoes = false;
42 server->oplocks = false;
43 cifs_dbg(VFS, "disabling echoes and oplocks\n");
46 server->echoes = true;
47 server->oplocks = false;
48 server->echo_credits = 1;
49 cifs_dbg(FYI, "disabling oplocks\n");
52 server->echoes = true;
54 server->oplocks = true;
55 server->oplock_credits = 1;
57 server->oplocks = false;
59 server->echo_credits = 1;
61 server->credits -= server->echo_credits + server->oplock_credits;
66 smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
70 spin_lock(&server->req_lock);
71 val = server->ops->get_credits_field(server, optype);
74 if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP)
75 rc = change_conf(server);
77 * Sometimes server returns 0 credits on oplock break ack - we need to
78 * rebalance credits in this case.
80 else if (server->in_flight > 0 && server->oplock_credits == 0 &&
82 if (server->credits > 1) {
84 server->oplock_credits++;
87 spin_unlock(&server->req_lock);
88 wake_up(&server->request_q);
90 cifs_reconnect(server);
94 smb2_set_credits(struct TCP_Server_Info *server, const int val)
96 spin_lock(&server->req_lock);
97 server->credits = val;
98 spin_unlock(&server->req_lock);
102 smb2_get_credits_field(struct TCP_Server_Info *server, const int optype)
106 return &server->echo_credits;
108 return &server->oplock_credits;
110 return &server->credits;
115 smb2_get_credits(struct mid_q_entry *mid)
117 return le16_to_cpu(((struct smb2_hdr *)mid->resp_buf)->CreditRequest);
121 smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size,
122 unsigned int *num, unsigned int *credits)
125 unsigned int scredits;
127 spin_lock(&server->req_lock);
129 if (server->credits <= 0) {
130 spin_unlock(&server->req_lock);
131 cifs_num_waiters_inc(server);
132 rc = wait_event_killable(server->request_q,
133 has_credits(server, &server->credits));
134 cifs_num_waiters_dec(server);
137 spin_lock(&server->req_lock);
139 if (server->tcpStatus == CifsExiting) {
140 spin_unlock(&server->req_lock);
144 scredits = server->credits;
145 /* can deadlock with reopen */
147 *num = SMB2_MAX_BUFFER_SIZE;
152 /* leave some credits for reopen and other ops */
154 *num = min_t(unsigned int, size,
155 scredits * SMB2_MAX_BUFFER_SIZE);
157 *credits = DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE);
158 server->credits -= *credits;
163 spin_unlock(&server->req_lock);
168 smb2_get_next_mid(struct TCP_Server_Info *server)
171 /* for SMB2 we need the current value */
172 spin_lock(&GlobalMid_Lock);
173 mid = server->CurrentMid++;
174 spin_unlock(&GlobalMid_Lock);
178 static struct mid_q_entry *
179 smb2_find_mid(struct TCP_Server_Info *server, char *buf)
181 struct mid_q_entry *mid;
182 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
183 __u64 wire_mid = le64_to_cpu(hdr->MessageId);
185 spin_lock(&GlobalMid_Lock);
186 list_for_each_entry(mid, &server->pending_mid_q, qhead) {
187 if ((mid->mid == wire_mid) &&
188 (mid->mid_state == MID_REQUEST_SUBMITTED) &&
189 (mid->command == hdr->Command)) {
190 spin_unlock(&GlobalMid_Lock);
194 spin_unlock(&GlobalMid_Lock);
199 smb2_dump_detail(void *buf)
201 #ifdef CONFIG_CIFS_DEBUG2
202 struct smb2_hdr *smb = (struct smb2_hdr *)buf;
204 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
205 smb->Command, smb->Status, smb->Flags, smb->MessageId,
207 cifs_dbg(VFS, "smb buf %p len %u\n", smb, smb2_calc_size(smb));
212 smb2_need_neg(struct TCP_Server_Info *server)
214 return server->max_read == 0;
218 smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
221 ses->server->CurrentMid = 0;
222 rc = SMB2_negotiate(xid, ses);
223 /* BB we probably don't need to retry with modern servers */
230 smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
232 struct TCP_Server_Info *server = tcon->ses->server;
235 /* start with specified wsize, or default */
236 wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE;
237 wsize = min_t(unsigned int, wsize, server->max_write);
239 if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))
240 wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE);
246 smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
248 struct TCP_Server_Info *server = tcon->ses->server;
251 /* start with specified rsize, or default */
252 rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE;
253 rsize = min_t(unsigned int, rsize, server->max_read);
255 if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))
256 rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE);
261 #ifdef CONFIG_CIFS_STATS2
263 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
266 unsigned int ret_data_len = 0;
267 struct network_interface_info_ioctl_rsp *out_buf;
269 rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
270 FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
271 NULL /* no data input */, 0 /* no data input */,
272 (char **)&out_buf, &ret_data_len);
274 cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
275 else if (ret_data_len < sizeof(struct network_interface_info_ioctl_rsp)) {
276 cifs_dbg(VFS, "server returned bad net interface info buf\n");
279 /* Dump info on first interface */
280 cifs_dbg(FYI, "Adapter Capability 0x%x\t",
281 le32_to_cpu(out_buf->Capability));
282 cifs_dbg(FYI, "Link Speed %lld\n",
283 le64_to_cpu(out_buf->LinkSpeed));
291 smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
294 __le16 srch_path = 0; /* Null - open root of share */
295 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
296 struct cifs_open_parms oparms;
300 oparms.desired_access = FILE_READ_ATTRIBUTES;
301 oparms.disposition = FILE_OPEN;
302 oparms.create_options = 0;
304 oparms.reconnect = false;
306 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
310 #ifdef CONFIG_CIFS_STATS2
311 SMB3_request_interfaces(xid, tcon);
314 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
315 FS_ATTRIBUTE_INFORMATION);
316 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
317 FS_DEVICE_INFORMATION);
318 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
319 FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
320 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
325 smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
328 __le16 srch_path = 0; /* Null - open root of share */
329 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
330 struct cifs_open_parms oparms;
334 oparms.desired_access = FILE_READ_ATTRIBUTES;
335 oparms.disposition = FILE_OPEN;
336 oparms.create_options = 0;
338 oparms.reconnect = false;
340 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
344 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
345 FS_ATTRIBUTE_INFORMATION);
346 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
347 FS_DEVICE_INFORMATION);
348 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
353 smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
354 struct cifs_sb_info *cifs_sb, const char *full_path)
358 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
359 struct cifs_open_parms oparms;
362 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
367 oparms.desired_access = FILE_READ_ATTRIBUTES;
368 oparms.disposition = FILE_OPEN;
369 oparms.create_options = 0;
371 oparms.reconnect = false;
373 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
379 rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
385 smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
386 struct cifs_sb_info *cifs_sb, const char *full_path,
387 u64 *uniqueid, FILE_ALL_INFO *data)
389 *uniqueid = le64_to_cpu(data->IndexNumber);
394 smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
395 struct cifs_fid *fid, FILE_ALL_INFO *data)
398 struct smb2_file_all_info *smb2_data;
400 smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
402 if (smb2_data == NULL)
405 rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid,
408 move_smb2_info_to_cifs(data, smb2_data);
414 smb2_can_echo(struct TCP_Server_Info *server)
416 return server->echoes;
420 smb2_clear_stats(struct cifs_tcon *tcon)
422 #ifdef CONFIG_CIFS_STATS
424 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
425 atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
426 atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
432 smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
434 seq_puts(m, "\n\tShare Capabilities:");
435 if (tcon->capabilities & SMB2_SHARE_CAP_DFS)
436 seq_puts(m, " DFS,");
437 if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY)
438 seq_puts(m, " CONTINUOUS AVAILABILITY,");
439 if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT)
440 seq_puts(m, " SCALEOUT,");
441 if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER)
442 seq_puts(m, " CLUSTER,");
443 if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC)
444 seq_puts(m, " ASYMMETRIC,");
445 if (tcon->capabilities == 0)
446 seq_puts(m, " None");
447 if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
448 seq_puts(m, " Aligned,");
449 if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
450 seq_puts(m, " Partition Aligned,");
451 if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
452 seq_puts(m, " SSD,");
453 if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
454 seq_puts(m, " TRIM-support,");
456 seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
457 if (tcon->perf_sector_size)
458 seq_printf(m, "\tOptimal sector size: 0x%x",
459 tcon->perf_sector_size);
463 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
465 #ifdef CONFIG_CIFS_STATS
466 atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
467 atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
468 seq_printf(m, "\nNegotiates: %d sent %d failed",
469 atomic_read(&sent[SMB2_NEGOTIATE_HE]),
470 atomic_read(&failed[SMB2_NEGOTIATE_HE]));
471 seq_printf(m, "\nSessionSetups: %d sent %d failed",
472 atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
473 atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
474 seq_printf(m, "\nLogoffs: %d sent %d failed",
475 atomic_read(&sent[SMB2_LOGOFF_HE]),
476 atomic_read(&failed[SMB2_LOGOFF_HE]));
477 seq_printf(m, "\nTreeConnects: %d sent %d failed",
478 atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
479 atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
480 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
481 atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
482 atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
483 seq_printf(m, "\nCreates: %d sent %d failed",
484 atomic_read(&sent[SMB2_CREATE_HE]),
485 atomic_read(&failed[SMB2_CREATE_HE]));
486 seq_printf(m, "\nCloses: %d sent %d failed",
487 atomic_read(&sent[SMB2_CLOSE_HE]),
488 atomic_read(&failed[SMB2_CLOSE_HE]));
489 seq_printf(m, "\nFlushes: %d sent %d failed",
490 atomic_read(&sent[SMB2_FLUSH_HE]),
491 atomic_read(&failed[SMB2_FLUSH_HE]));
492 seq_printf(m, "\nReads: %d sent %d failed",
493 atomic_read(&sent[SMB2_READ_HE]),
494 atomic_read(&failed[SMB2_READ_HE]));
495 seq_printf(m, "\nWrites: %d sent %d failed",
496 atomic_read(&sent[SMB2_WRITE_HE]),
497 atomic_read(&failed[SMB2_WRITE_HE]));
498 seq_printf(m, "\nLocks: %d sent %d failed",
499 atomic_read(&sent[SMB2_LOCK_HE]),
500 atomic_read(&failed[SMB2_LOCK_HE]));
501 seq_printf(m, "\nIOCTLs: %d sent %d failed",
502 atomic_read(&sent[SMB2_IOCTL_HE]),
503 atomic_read(&failed[SMB2_IOCTL_HE]));
504 seq_printf(m, "\nCancels: %d sent %d failed",
505 atomic_read(&sent[SMB2_CANCEL_HE]),
506 atomic_read(&failed[SMB2_CANCEL_HE]));
507 seq_printf(m, "\nEchos: %d sent %d failed",
508 atomic_read(&sent[SMB2_ECHO_HE]),
509 atomic_read(&failed[SMB2_ECHO_HE]));
510 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
511 atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
512 atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
513 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
514 atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
515 atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
516 seq_printf(m, "\nQueryInfos: %d sent %d failed",
517 atomic_read(&sent[SMB2_QUERY_INFO_HE]),
518 atomic_read(&failed[SMB2_QUERY_INFO_HE]));
519 seq_printf(m, "\nSetInfos: %d sent %d failed",
520 atomic_read(&sent[SMB2_SET_INFO_HE]),
521 atomic_read(&failed[SMB2_SET_INFO_HE]));
522 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
523 atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
524 atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
529 smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
531 struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
532 struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
534 cfile->fid.persistent_fid = fid->persistent_fid;
535 cfile->fid.volatile_fid = fid->volatile_fid;
536 server->ops->set_oplock_level(cinode, oplock, fid->epoch,
538 cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
539 memcpy(cfile->fid.create_guid, fid->create_guid, 16);
543 smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
544 struct cifs_fid *fid)
546 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
550 SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
551 u64 persistent_fid, u64 volatile_fid,
552 struct copychunk_ioctl *pcchunk)
555 unsigned int ret_data_len;
556 struct resume_key_req *res_key;
558 rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
559 FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
560 NULL, 0 /* no input */,
561 (char **)&res_key, &ret_data_len);
564 cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
565 goto req_res_key_exit;
567 if (ret_data_len < sizeof(struct resume_key_req)) {
568 cifs_dbg(VFS, "Invalid refcopy resume key length\n");
570 goto req_res_key_exit;
572 memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
580 smb2_clone_range(const unsigned int xid,
581 struct cifsFileInfo *srcfile,
582 struct cifsFileInfo *trgtfile, u64 src_off,
583 u64 len, u64 dest_off)
586 unsigned int ret_data_len;
587 struct copychunk_ioctl *pcchunk;
588 struct copychunk_ioctl_rsp *retbuf = NULL;
589 struct cifs_tcon *tcon;
590 int chunks_copied = 0;
591 bool chunk_sizes_updated = false;
593 pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
598 cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n");
599 /* Request a key from the server to identify the source of the copy */
600 rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
601 srcfile->fid.persistent_fid,
602 srcfile->fid.volatile_fid, pcchunk);
604 /* Note: request_res_key sets res_key null only if rc !=0 */
608 /* For now array only one chunk long, will make more flexible later */
609 pcchunk->ChunkCount = cpu_to_le32(1);
610 pcchunk->Reserved = 0;
611 pcchunk->Reserved2 = 0;
613 tcon = tlink_tcon(trgtfile->tlink);
616 pcchunk->SourceOffset = cpu_to_le64(src_off);
617 pcchunk->TargetOffset = cpu_to_le64(dest_off);
619 cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk));
621 /* Request server copy to target from src identified by key */
624 rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
625 trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
626 true /* is_fsctl */, (char *)pcchunk,
627 sizeof(struct copychunk_ioctl), (char **)&retbuf,
631 sizeof(struct copychunk_ioctl_rsp)) {
632 cifs_dbg(VFS, "invalid cchunk response size\n");
636 if (retbuf->TotalBytesWritten == 0) {
637 cifs_dbg(FYI, "no bytes copied\n");
642 * Check if server claimed to write more than we asked
644 if (le32_to_cpu(retbuf->TotalBytesWritten) >
645 le32_to_cpu(pcchunk->Length)) {
646 cifs_dbg(VFS, "invalid copy chunk response\n");
650 if (le32_to_cpu(retbuf->ChunksWritten) != 1) {
651 cifs_dbg(VFS, "invalid num chunks written\n");
657 src_off += le32_to_cpu(retbuf->TotalBytesWritten);
658 dest_off += le32_to_cpu(retbuf->TotalBytesWritten);
659 len -= le32_to_cpu(retbuf->TotalBytesWritten);
661 cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %d\n",
662 le32_to_cpu(retbuf->ChunksWritten),
663 le32_to_cpu(retbuf->ChunkBytesWritten),
664 le32_to_cpu(retbuf->TotalBytesWritten));
665 } else if (rc == -EINVAL) {
666 if (ret_data_len != sizeof(struct copychunk_ioctl_rsp))
669 cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n",
670 le32_to_cpu(retbuf->ChunksWritten),
671 le32_to_cpu(retbuf->ChunkBytesWritten),
672 le32_to_cpu(retbuf->TotalBytesWritten));
675 * Check if this is the first request using these sizes,
676 * (ie check if copy succeed once with original sizes
677 * and check if the server gave us different sizes after
678 * we already updated max sizes on previous request).
679 * if not then why is the server returning an error now
681 if ((chunks_copied != 0) || chunk_sizes_updated)
684 /* Check that server is not asking us to grow size */
685 if (le32_to_cpu(retbuf->ChunkBytesWritten) <
686 tcon->max_bytes_chunk)
687 tcon->max_bytes_chunk =
688 le32_to_cpu(retbuf->ChunkBytesWritten);
690 goto cchunk_out; /* server gave us bogus size */
692 /* No need to change MaxChunks since already set to 1 */
693 chunk_sizes_updated = true;
705 smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
706 struct cifs_fid *fid)
708 return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
712 smb2_read_data_offset(char *buf)
714 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
715 return rsp->DataOffset;
719 smb2_read_data_length(char *buf)
721 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
722 return le32_to_cpu(rsp->DataLength);
727 smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid,
728 struct cifs_io_parms *parms, unsigned int *bytes_read,
729 char **buf, int *buf_type)
731 parms->persistent_fid = pfid->persistent_fid;
732 parms->volatile_fid = pfid->volatile_fid;
733 return SMB2_read(xid, parms, bytes_read, buf, buf_type);
737 smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid,
738 struct cifs_io_parms *parms, unsigned int *written,
739 struct kvec *iov, unsigned long nr_segs)
742 parms->persistent_fid = pfid->persistent_fid;
743 parms->volatile_fid = pfid->volatile_fid;
744 return SMB2_write(xid, parms, written, iov, nr_segs);
747 /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */
748 static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
749 struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse)
751 struct cifsInodeInfo *cifsi;
754 cifsi = CIFS_I(inode);
756 /* if file already sparse don't bother setting sparse again */
757 if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse)
758 return true; /* already sparse */
760 if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse)
761 return true; /* already not sparse */
764 * Can't check for sparse support on share the usual way via the
765 * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share
766 * since Samba server doesn't set the flag on the share, yet
767 * supports the set sparse FSCTL and returns sparse correctly
768 * in the file attributes. If we fail setting sparse though we
769 * mark that server does not support sparse files for this share
770 * to avoid repeatedly sending the unsupported fsctl to server
771 * if the file is repeatedly extended.
773 if (tcon->broken_sparse_sup)
776 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
777 cfile->fid.volatile_fid, FSCTL_SET_SPARSE,
778 true /* is_fctl */, &setsparse, 1, NULL, NULL);
780 tcon->broken_sparse_sup = true;
781 cifs_dbg(FYI, "set sparse rc = %d\n", rc);
786 cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE;
788 cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE);
794 smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
795 struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
797 __le64 eof = cpu_to_le64(size);
801 * If extending file more than one page make sparse. Many Linux fs
802 * make files sparse by default when extending via ftruncate
804 inode = d_inode(cfile->dentry);
806 if (!set_alloc && (size > inode->i_size + 8192)) {
809 /* whether set sparse succeeds or not, extend the file */
810 smb2_set_sparse(xid, tcon, cfile, inode, set_sparse);
813 return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
814 cfile->fid.volatile_fid, cfile->pid, &eof, false);
818 smb2_duplicate_extents(const unsigned int xid,
819 struct cifsFileInfo *srcfile,
820 struct cifsFileInfo *trgtfile, u64 src_off,
821 u64 len, u64 dest_off)
824 unsigned int ret_data_len;
825 struct duplicate_extents_to_file dup_ext_buf;
826 struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink);
828 /* server fileays advertise duplicate extent support with this flag */
829 if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) &
830 FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0)
833 dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid;
834 dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid;
835 dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off);
836 dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off);
837 dup_ext_buf.ByteCount = cpu_to_le64(len);
838 cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld",
839 src_off, dest_off, len);
841 rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false);
843 goto duplicate_extents_out;
845 rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
846 trgtfile->fid.volatile_fid,
847 FSCTL_DUPLICATE_EXTENTS_TO_FILE,
848 true /* is_fsctl */, (char *)&dup_ext_buf,
849 sizeof(struct duplicate_extents_to_file),
853 if (ret_data_len > 0)
854 cifs_dbg(FYI, "non-zero response length in duplicate extents");
856 duplicate_extents_out:
861 smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
862 struct cifsFileInfo *cfile)
864 return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
865 cfile->fid.volatile_fid);
869 smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon,
870 struct cifsFileInfo *cfile)
872 struct fsctl_set_integrity_information_req integr_info;
873 unsigned int ret_data_len;
875 integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED);
876 integr_info.Flags = 0;
877 integr_info.Reserved = 0;
879 return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
880 cfile->fid.volatile_fid,
881 FSCTL_SET_INTEGRITY_INFORMATION,
882 true /* is_fsctl */, (char *)&integr_info,
883 sizeof(struct fsctl_set_integrity_information_req),
890 smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
891 const char *path, struct cifs_sb_info *cifs_sb,
892 struct cifs_fid *fid, __u16 search_flags,
893 struct cifs_search_info *srch_inf)
897 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
898 struct cifs_open_parms oparms;
900 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
905 oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
906 oparms.disposition = FILE_OPEN;
907 oparms.create_options = 0;
909 oparms.reconnect = false;
911 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
914 cifs_dbg(FYI, "open dir failed rc=%d\n", rc);
918 srch_inf->entries_in_buffer = 0;
919 srch_inf->index_of_last_entry = 2;
921 rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
922 fid->volatile_fid, 0, srch_inf);
924 cifs_dbg(FYI, "query directory failed rc=%d\n", rc);
925 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
931 smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
932 struct cifs_fid *fid, __u16 search_flags,
933 struct cifs_search_info *srch_inf)
935 return SMB2_query_directory(xid, tcon, fid->persistent_fid,
936 fid->volatile_fid, 0, srch_inf);
940 smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
941 struct cifs_fid *fid)
943 return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
947 * If we negotiate SMB2 protocol and get STATUS_PENDING - update
948 * the number of credits and return true. Otherwise - return false.
951 smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length)
953 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
955 if (hdr->Status != STATUS_PENDING)
959 spin_lock(&server->req_lock);
960 server->credits += le16_to_cpu(hdr->CreditRequest);
961 spin_unlock(&server->req_lock);
962 wake_up(&server->request_q);
969 smb2_is_session_expired(char *buf)
971 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
973 if (hdr->Status != STATUS_NETWORK_SESSION_EXPIRED)
976 cifs_dbg(FYI, "Session expired\n");
981 smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
982 struct cifsInodeInfo *cinode)
984 if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING)
985 return SMB2_lease_break(0, tcon, cinode->lease_key,
986 smb2_get_lease_state(cinode));
988 return SMB2_oplock_break(0, tcon, fid->persistent_fid,
990 CIFS_CACHE_READ(cinode) ? 1 : 0);
994 smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
998 __le16 srch_path = 0; /* Null - open root of share */
999 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1000 struct cifs_open_parms oparms;
1001 struct cifs_fid fid;
1004 oparms.desired_access = FILE_READ_ATTRIBUTES;
1005 oparms.disposition = FILE_OPEN;
1006 oparms.create_options = 0;
1008 oparms.reconnect = false;
1010 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
1013 buf->f_type = SMB2_MAGIC_NUMBER;
1014 rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid,
1016 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
1021 smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
1023 return ob1->fid.persistent_fid == ob2->fid.persistent_fid &&
1024 ob1->fid.volatile_fid == ob2->fid.volatile_fid;
1028 smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
1029 __u64 length, __u32 type, int lock, int unlock, bool wait)
1031 if (unlock && !lock)
1032 type = SMB2_LOCKFLAG_UNLOCK;
1033 return SMB2_lock(xid, tlink_tcon(cfile->tlink),
1034 cfile->fid.persistent_fid, cfile->fid.volatile_fid,
1035 current->tgid, length, offset, type, wait);
1039 smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid)
1041 memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE);
1045 smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid)
1047 memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
1051 smb2_new_lease_key(struct cifs_fid *fid)
1053 generate_random_uuid(fid->lease_key);
1056 #define SMB2_SYMLINK_STRUCT_SIZE \
1057 (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp))
1060 smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
1061 const char *full_path, char **target_path,
1062 struct cifs_sb_info *cifs_sb)
1066 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1067 struct cifs_open_parms oparms;
1068 struct cifs_fid fid;
1069 struct smb2_err_rsp *err_buf = NULL;
1070 struct smb2_symlink_err_rsp *symlink;
1071 unsigned int sub_len;
1072 unsigned int sub_offset;
1073 unsigned int print_len;
1074 unsigned int print_offset;
1076 cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
1078 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
1083 oparms.desired_access = FILE_READ_ATTRIBUTES;
1084 oparms.disposition = FILE_OPEN;
1085 oparms.create_options = 0;
1087 oparms.reconnect = false;
1089 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf);
1091 if (!rc || !err_buf) {
1096 if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) ||
1097 get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) {
1102 /* open must fail on symlink - reset rc */
1104 symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
1105 sub_len = le16_to_cpu(symlink->SubstituteNameLength);
1106 sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
1107 print_len = le16_to_cpu(symlink->PrintNameLength);
1108 print_offset = le16_to_cpu(symlink->PrintNameOffset);
1110 if (get_rfc1002_length(err_buf) + 4 <
1111 SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) {
1116 if (get_rfc1002_length(err_buf) + 4 <
1117 SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) {
1122 *target_path = cifs_strndup_from_utf16(
1123 (char *)symlink->PathBuffer + sub_offset,
1124 sub_len, true, cifs_sb->local_nls);
1125 if (!(*target_path)) {
1129 convert_delimiter(*target_path, '/');
1130 cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
1135 static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
1136 loff_t offset, loff_t len, bool keep_size)
1138 struct inode *inode;
1139 struct cifsInodeInfo *cifsi;
1140 struct cifsFileInfo *cfile = file->private_data;
1141 struct file_zero_data_information fsctl_buf;
1147 inode = d_inode(cfile->dentry);
1148 cifsi = CIFS_I(inode);
1151 * We zero the range through ioctl, so we need remove the page caches
1152 * first, otherwise the data may be inconsistent with the server.
1154 truncate_pagecache_range(inode, offset, offset + len - 1);
1156 /* if file not oplocked can't be sure whether asking to extend size */
1157 if (!CIFS_CACHE_READ(cifsi))
1158 if (keep_size == false)
1162 * Must check if file sparse since fallocate -z (zero range) assumes
1163 * non-sparse allocation
1165 if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE))
1169 * need to make sure we are not asked to extend the file since the SMB3
1170 * fsctl does not change the file size. In the future we could change
1171 * this to zero the first part of the range then set the file size
1172 * which for a non sparse file would zero the newly extended range
1174 if (keep_size == false)
1175 if (i_size_read(inode) < offset + len)
1178 cifs_dbg(FYI, "offset %lld len %lld", offset, len);
1180 fsctl_buf.FileOffset = cpu_to_le64(offset);
1181 fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
1183 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1184 cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
1185 true /* is_fctl */, (char *)&fsctl_buf,
1186 sizeof(struct file_zero_data_information), NULL, NULL);
1191 static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
1192 loff_t offset, loff_t len)
1194 struct inode *inode;
1195 struct cifsInodeInfo *cifsi;
1196 struct cifsFileInfo *cfile = file->private_data;
1197 struct file_zero_data_information fsctl_buf;
1200 __u8 set_sparse = 1;
1204 inode = d_inode(cfile->dentry);
1205 cifsi = CIFS_I(inode);
1207 /* Need to make file sparse, if not already, before freeing range. */
1208 /* Consider adding equivalent for compressed since it could also work */
1209 if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse))
1213 * We implement the punch hole through ioctl, so we need remove the page
1214 * caches first, otherwise the data may be inconsistent with the server.
1216 truncate_pagecache_range(inode, offset, offset + len - 1);
1218 cifs_dbg(FYI, "offset %lld len %lld", offset, len);
1220 fsctl_buf.FileOffset = cpu_to_le64(offset);
1221 fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
1223 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1224 cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
1225 true /* is_fctl */, (char *)&fsctl_buf,
1226 sizeof(struct file_zero_data_information), NULL, NULL);
1231 static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
1232 loff_t off, loff_t len, bool keep_size)
1234 struct inode *inode;
1235 struct cifsInodeInfo *cifsi;
1236 struct cifsFileInfo *cfile = file->private_data;
1237 long rc = -EOPNOTSUPP;
1242 inode = d_inode(cfile->dentry);
1243 cifsi = CIFS_I(inode);
1245 /* if file not oplocked can't be sure whether asking to extend size */
1246 if (!CIFS_CACHE_READ(cifsi))
1247 if (keep_size == false)
1251 * Files are non-sparse by default so falloc may be a no-op
1252 * Must check if file sparse. If not sparse, and not extending
1253 * then no need to do anything since file already allocated
1255 if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) {
1256 if (keep_size == true)
1258 /* check if extending file */
1259 else if (i_size_read(inode) >= off + len)
1260 /* not extending file and already not sparse */
1262 /* BB: in future add else clause to extend file */
1267 if ((keep_size == true) || (i_size_read(inode) >= off + len)) {
1269 * Check if falloc starts within first few pages of file
1270 * and ends within a few pages of the end of file to
1271 * ensure that most of file is being forced to be
1272 * fallocated now. If so then setting whole file sparse
1273 * ie potentially making a few extra pages at the beginning
1274 * or end of the file non-sparse via set_sparse is harmless.
1276 if ((off > 8192) || (off + len + 8192 < i_size_read(inode)))
1279 rc = smb2_set_sparse(xid, tcon, cfile, inode, false);
1281 /* BB: else ... in future add code to extend file and set sparse */
1289 static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
1290 loff_t off, loff_t len)
1292 /* KEEP_SIZE already checked for by do_fallocate */
1293 if (mode & FALLOC_FL_PUNCH_HOLE)
1294 return smb3_punch_hole(file, tcon, off, len);
1295 else if (mode & FALLOC_FL_ZERO_RANGE) {
1296 if (mode & FALLOC_FL_KEEP_SIZE)
1297 return smb3_zero_range(file, tcon, off, len, true);
1298 return smb3_zero_range(file, tcon, off, len, false);
1299 } else if (mode == FALLOC_FL_KEEP_SIZE)
1300 return smb3_simple_falloc(file, tcon, off, len, true);
1302 return smb3_simple_falloc(file, tcon, off, len, false);
1308 smb2_downgrade_oplock(struct TCP_Server_Info *server,
1309 struct cifsInodeInfo *cinode, bool set_level2)
1312 server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II,
1315 server->ops->set_oplock_level(cinode, 0, 0, NULL);
1319 smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
1320 unsigned int epoch, bool *purge_cache)
1323 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
1325 if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {
1326 cinode->oplock = CIFS_CACHE_RHW_FLG;
1327 cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",
1328 &cinode->vfs_inode);
1329 } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {
1330 cinode->oplock = CIFS_CACHE_RW_FLG;
1331 cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
1332 &cinode->vfs_inode);
1333 } else if (oplock == SMB2_OPLOCK_LEVEL_II) {
1334 cinode->oplock = CIFS_CACHE_READ_FLG;
1335 cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
1336 &cinode->vfs_inode);
1342 smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
1343 unsigned int epoch, bool *purge_cache)
1345 char message[5] = {0};
1346 unsigned int new_oplock = 0;
1349 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
1352 /* Check if the server granted an oplock rather than a lease */
1353 if (oplock & SMB2_OPLOCK_LEVEL_EXCLUSIVE)
1354 return smb2_set_oplock_level(cinode, oplock, epoch,
1357 if (oplock & SMB2_LEASE_READ_CACHING_HE) {
1358 new_oplock |= CIFS_CACHE_READ_FLG;
1359 strcat(message, "R");
1361 if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) {
1362 new_oplock |= CIFS_CACHE_HANDLE_FLG;
1363 strcat(message, "H");
1365 if (oplock & SMB2_LEASE_WRITE_CACHING_HE) {
1366 new_oplock |= CIFS_CACHE_WRITE_FLG;
1367 strcat(message, "W");
1370 strncpy(message, "None", sizeof(message));
1372 cinode->oplock = new_oplock;
1373 cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
1374 &cinode->vfs_inode);
1378 smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
1379 unsigned int epoch, bool *purge_cache)
1381 unsigned int old_oplock = cinode->oplock;
1383 smb21_set_oplock_level(cinode, oplock, epoch, purge_cache);
1386 *purge_cache = false;
1387 if (old_oplock == CIFS_CACHE_READ_FLG) {
1388 if (cinode->oplock == CIFS_CACHE_READ_FLG &&
1389 (epoch - cinode->epoch > 0))
1390 *purge_cache = true;
1391 else if (cinode->oplock == CIFS_CACHE_RH_FLG &&
1392 (epoch - cinode->epoch > 1))
1393 *purge_cache = true;
1394 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
1395 (epoch - cinode->epoch > 1))
1396 *purge_cache = true;
1397 else if (cinode->oplock == 0 &&
1398 (epoch - cinode->epoch > 0))
1399 *purge_cache = true;
1400 } else if (old_oplock == CIFS_CACHE_RH_FLG) {
1401 if (cinode->oplock == CIFS_CACHE_RH_FLG &&
1402 (epoch - cinode->epoch > 0))
1403 *purge_cache = true;
1404 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
1405 (epoch - cinode->epoch > 1))
1406 *purge_cache = true;
1408 cinode->epoch = epoch;
1413 smb2_is_read_op(__u32 oplock)
1415 return oplock == SMB2_OPLOCK_LEVEL_II;
1419 smb21_is_read_op(__u32 oplock)
1421 return (oplock & SMB2_LEASE_READ_CACHING_HE) &&
1422 !(oplock & SMB2_LEASE_WRITE_CACHING_HE);
1426 map_oplock_to_lease(u8 oplock)
1428 if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE)
1429 return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING;
1430 else if (oplock == SMB2_OPLOCK_LEVEL_II)
1431 return SMB2_LEASE_READ_CACHING;
1432 else if (oplock == SMB2_OPLOCK_LEVEL_BATCH)
1433 return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING |
1434 SMB2_LEASE_WRITE_CACHING;
1439 smb2_create_lease_buf(u8 *lease_key, u8 oplock)
1441 struct create_lease *buf;
1443 buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
1447 buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
1448 buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
1449 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
1451 buf->ccontext.DataOffset = cpu_to_le16(offsetof
1452 (struct create_lease, lcontext));
1453 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context));
1454 buf->ccontext.NameOffset = cpu_to_le16(offsetof
1455 (struct create_lease, Name));
1456 buf->ccontext.NameLength = cpu_to_le16(4);
1457 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
1466 smb3_create_lease_buf(u8 *lease_key, u8 oplock)
1468 struct create_lease_v2 *buf;
1470 buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL);
1474 buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
1475 buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
1476 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
1478 buf->ccontext.DataOffset = cpu_to_le16(offsetof
1479 (struct create_lease_v2, lcontext));
1480 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2));
1481 buf->ccontext.NameOffset = cpu_to_le16(offsetof
1482 (struct create_lease_v2, Name));
1483 buf->ccontext.NameLength = cpu_to_le16(4);
1484 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
1493 smb2_parse_lease_buf(void *buf, unsigned int *epoch)
1495 struct create_lease *lc = (struct create_lease *)buf;
1497 *epoch = 0; /* not used */
1498 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
1499 return SMB2_OPLOCK_LEVEL_NOCHANGE;
1500 return le32_to_cpu(lc->lcontext.LeaseState);
1504 smb3_parse_lease_buf(void *buf, unsigned int *epoch)
1506 struct create_lease_v2 *lc = (struct create_lease_v2 *)buf;
1508 *epoch = le16_to_cpu(lc->lcontext.Epoch);
1509 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
1510 return SMB2_OPLOCK_LEVEL_NOCHANGE;
1511 return le32_to_cpu(lc->lcontext.LeaseState);
1515 smb2_wp_retry_size(struct inode *inode)
1517 return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize,
1518 SMB2_MAX_BUFFER_SIZE);
1522 smb2_dir_needs_close(struct cifsFileInfo *cfile)
1524 return !cfile->invalidHandle;
1527 struct smb_version_operations smb20_operations = {
1528 .compare_fids = smb2_compare_fids,
1529 .setup_request = smb2_setup_request,
1530 .setup_async_request = smb2_setup_async_request,
1531 .check_receive = smb2_check_receive,
1532 .add_credits = smb2_add_credits,
1533 .set_credits = smb2_set_credits,
1534 .get_credits_field = smb2_get_credits_field,
1535 .get_credits = smb2_get_credits,
1536 .wait_mtu_credits = cifs_wait_mtu_credits,
1537 .get_next_mid = smb2_get_next_mid,
1538 .read_data_offset = smb2_read_data_offset,
1539 .read_data_length = smb2_read_data_length,
1540 .map_error = map_smb2_to_linux_error,
1541 .find_mid = smb2_find_mid,
1542 .check_message = smb2_check_message,
1543 .dump_detail = smb2_dump_detail,
1544 .clear_stats = smb2_clear_stats,
1545 .print_stats = smb2_print_stats,
1546 .is_oplock_break = smb2_is_valid_oplock_break,
1547 .handle_cancelled_mid = smb2_handle_cancelled_mid,
1548 .downgrade_oplock = smb2_downgrade_oplock,
1549 .need_neg = smb2_need_neg,
1550 .negotiate = smb2_negotiate,
1551 .negotiate_wsize = smb2_negotiate_wsize,
1552 .negotiate_rsize = smb2_negotiate_rsize,
1553 .sess_setup = SMB2_sess_setup,
1554 .logoff = SMB2_logoff,
1555 .tree_connect = SMB2_tcon,
1556 .tree_disconnect = SMB2_tdis,
1557 .qfs_tcon = smb2_qfs_tcon,
1558 .is_path_accessible = smb2_is_path_accessible,
1559 .can_echo = smb2_can_echo,
1561 .query_path_info = smb2_query_path_info,
1562 .get_srv_inum = smb2_get_srv_inum,
1563 .query_file_info = smb2_query_file_info,
1564 .set_path_size = smb2_set_path_size,
1565 .set_file_size = smb2_set_file_size,
1566 .set_file_info = smb2_set_file_info,
1567 .set_compression = smb2_set_compression,
1568 .mkdir = smb2_mkdir,
1569 .mkdir_setinfo = smb2_mkdir_setinfo,
1570 .rmdir = smb2_rmdir,
1571 .unlink = smb2_unlink,
1572 .rename = smb2_rename_path,
1573 .create_hardlink = smb2_create_hardlink,
1574 .query_symlink = smb2_query_symlink,
1575 .open = smb2_open_file,
1576 .set_fid = smb2_set_fid,
1577 .close = smb2_close_file,
1578 .flush = smb2_flush_file,
1579 .async_readv = smb2_async_readv,
1580 .async_writev = smb2_async_writev,
1581 .sync_read = smb2_sync_read,
1582 .sync_write = smb2_sync_write,
1583 .query_dir_first = smb2_query_dir_first,
1584 .query_dir_next = smb2_query_dir_next,
1585 .close_dir = smb2_close_dir,
1586 .calc_smb_size = smb2_calc_size,
1587 .is_status_pending = smb2_is_status_pending,
1588 .is_session_expired = smb2_is_session_expired,
1589 .oplock_response = smb2_oplock_response,
1590 .queryfs = smb2_queryfs,
1591 .mand_lock = smb2_mand_lock,
1592 .mand_unlock_range = smb2_unlock_range,
1593 .push_mand_locks = smb2_push_mandatory_locks,
1594 .get_lease_key = smb2_get_lease_key,
1595 .set_lease_key = smb2_set_lease_key,
1596 .new_lease_key = smb2_new_lease_key,
1597 .calc_signature = smb2_calc_signature,
1598 .is_read_op = smb2_is_read_op,
1599 .set_oplock_level = smb2_set_oplock_level,
1600 .create_lease_buf = smb2_create_lease_buf,
1601 .parse_lease_buf = smb2_parse_lease_buf,
1602 .clone_range = smb2_clone_range,
1603 .wp_retry_size = smb2_wp_retry_size,
1604 .dir_needs_close = smb2_dir_needs_close,
1607 struct smb_version_operations smb21_operations = {
1608 .compare_fids = smb2_compare_fids,
1609 .setup_request = smb2_setup_request,
1610 .setup_async_request = smb2_setup_async_request,
1611 .check_receive = smb2_check_receive,
1612 .add_credits = smb2_add_credits,
1613 .set_credits = smb2_set_credits,
1614 .get_credits_field = smb2_get_credits_field,
1615 .get_credits = smb2_get_credits,
1616 .wait_mtu_credits = smb2_wait_mtu_credits,
1617 .get_next_mid = smb2_get_next_mid,
1618 .read_data_offset = smb2_read_data_offset,
1619 .read_data_length = smb2_read_data_length,
1620 .map_error = map_smb2_to_linux_error,
1621 .find_mid = smb2_find_mid,
1622 .check_message = smb2_check_message,
1623 .dump_detail = smb2_dump_detail,
1624 .clear_stats = smb2_clear_stats,
1625 .print_stats = smb2_print_stats,
1626 .is_oplock_break = smb2_is_valid_oplock_break,
1627 .handle_cancelled_mid = smb2_handle_cancelled_mid,
1628 .downgrade_oplock = smb2_downgrade_oplock,
1629 .need_neg = smb2_need_neg,
1630 .negotiate = smb2_negotiate,
1631 .negotiate_wsize = smb2_negotiate_wsize,
1632 .negotiate_rsize = smb2_negotiate_rsize,
1633 .sess_setup = SMB2_sess_setup,
1634 .logoff = SMB2_logoff,
1635 .tree_connect = SMB2_tcon,
1636 .tree_disconnect = SMB2_tdis,
1637 .qfs_tcon = smb2_qfs_tcon,
1638 .is_path_accessible = smb2_is_path_accessible,
1639 .can_echo = smb2_can_echo,
1641 .query_path_info = smb2_query_path_info,
1642 .get_srv_inum = smb2_get_srv_inum,
1643 .query_file_info = smb2_query_file_info,
1644 .set_path_size = smb2_set_path_size,
1645 .set_file_size = smb2_set_file_size,
1646 .set_file_info = smb2_set_file_info,
1647 .set_compression = smb2_set_compression,
1648 .mkdir = smb2_mkdir,
1649 .mkdir_setinfo = smb2_mkdir_setinfo,
1650 .rmdir = smb2_rmdir,
1651 .unlink = smb2_unlink,
1652 .rename = smb2_rename_path,
1653 .create_hardlink = smb2_create_hardlink,
1654 .query_symlink = smb2_query_symlink,
1655 .query_mf_symlink = smb3_query_mf_symlink,
1656 .create_mf_symlink = smb3_create_mf_symlink,
1657 .open = smb2_open_file,
1658 .set_fid = smb2_set_fid,
1659 .close = smb2_close_file,
1660 .flush = smb2_flush_file,
1661 .async_readv = smb2_async_readv,
1662 .async_writev = smb2_async_writev,
1663 .sync_read = smb2_sync_read,
1664 .sync_write = smb2_sync_write,
1665 .query_dir_first = smb2_query_dir_first,
1666 .query_dir_next = smb2_query_dir_next,
1667 .close_dir = smb2_close_dir,
1668 .calc_smb_size = smb2_calc_size,
1669 .is_status_pending = smb2_is_status_pending,
1670 .is_session_expired = smb2_is_session_expired,
1671 .oplock_response = smb2_oplock_response,
1672 .queryfs = smb2_queryfs,
1673 .mand_lock = smb2_mand_lock,
1674 .mand_unlock_range = smb2_unlock_range,
1675 .push_mand_locks = smb2_push_mandatory_locks,
1676 .get_lease_key = smb2_get_lease_key,
1677 .set_lease_key = smb2_set_lease_key,
1678 .new_lease_key = smb2_new_lease_key,
1679 .calc_signature = smb2_calc_signature,
1680 .is_read_op = smb21_is_read_op,
1681 .set_oplock_level = smb21_set_oplock_level,
1682 .create_lease_buf = smb2_create_lease_buf,
1683 .parse_lease_buf = smb2_parse_lease_buf,
1684 .clone_range = smb2_clone_range,
1685 .wp_retry_size = smb2_wp_retry_size,
1686 .dir_needs_close = smb2_dir_needs_close,
1689 struct smb_version_operations smb30_operations = {
1690 .compare_fids = smb2_compare_fids,
1691 .setup_request = smb2_setup_request,
1692 .setup_async_request = smb2_setup_async_request,
1693 .check_receive = smb2_check_receive,
1694 .add_credits = smb2_add_credits,
1695 .set_credits = smb2_set_credits,
1696 .get_credits_field = smb2_get_credits_field,
1697 .get_credits = smb2_get_credits,
1698 .wait_mtu_credits = smb2_wait_mtu_credits,
1699 .get_next_mid = smb2_get_next_mid,
1700 .read_data_offset = smb2_read_data_offset,
1701 .read_data_length = smb2_read_data_length,
1702 .map_error = map_smb2_to_linux_error,
1703 .find_mid = smb2_find_mid,
1704 .check_message = smb2_check_message,
1705 .dump_detail = smb2_dump_detail,
1706 .clear_stats = smb2_clear_stats,
1707 .print_stats = smb2_print_stats,
1708 .dump_share_caps = smb2_dump_share_caps,
1709 .is_oplock_break = smb2_is_valid_oplock_break,
1710 .handle_cancelled_mid = smb2_handle_cancelled_mid,
1711 .downgrade_oplock = smb2_downgrade_oplock,
1712 .need_neg = smb2_need_neg,
1713 .negotiate = smb2_negotiate,
1714 .negotiate_wsize = smb2_negotiate_wsize,
1715 .negotiate_rsize = smb2_negotiate_rsize,
1716 .sess_setup = SMB2_sess_setup,
1717 .logoff = SMB2_logoff,
1718 .tree_connect = SMB2_tcon,
1719 .tree_disconnect = SMB2_tdis,
1720 .qfs_tcon = smb3_qfs_tcon,
1721 .is_path_accessible = smb2_is_path_accessible,
1722 .can_echo = smb2_can_echo,
1724 .query_path_info = smb2_query_path_info,
1725 .get_srv_inum = smb2_get_srv_inum,
1726 .query_file_info = smb2_query_file_info,
1727 .set_path_size = smb2_set_path_size,
1728 .set_file_size = smb2_set_file_size,
1729 .set_file_info = smb2_set_file_info,
1730 .set_compression = smb2_set_compression,
1731 .mkdir = smb2_mkdir,
1732 .mkdir_setinfo = smb2_mkdir_setinfo,
1733 .rmdir = smb2_rmdir,
1734 .unlink = smb2_unlink,
1735 .rename = smb2_rename_path,
1736 .create_hardlink = smb2_create_hardlink,
1737 .query_symlink = smb2_query_symlink,
1738 .query_mf_symlink = smb3_query_mf_symlink,
1739 .create_mf_symlink = smb3_create_mf_symlink,
1740 .open = smb2_open_file,
1741 .set_fid = smb2_set_fid,
1742 .close = smb2_close_file,
1743 .flush = smb2_flush_file,
1744 .async_readv = smb2_async_readv,
1745 .async_writev = smb2_async_writev,
1746 .sync_read = smb2_sync_read,
1747 .sync_write = smb2_sync_write,
1748 .query_dir_first = smb2_query_dir_first,
1749 .query_dir_next = smb2_query_dir_next,
1750 .close_dir = smb2_close_dir,
1751 .calc_smb_size = smb2_calc_size,
1752 .is_status_pending = smb2_is_status_pending,
1753 .is_session_expired = smb2_is_session_expired,
1754 .oplock_response = smb2_oplock_response,
1755 .queryfs = smb2_queryfs,
1756 .mand_lock = smb2_mand_lock,
1757 .mand_unlock_range = smb2_unlock_range,
1758 .push_mand_locks = smb2_push_mandatory_locks,
1759 .get_lease_key = smb2_get_lease_key,
1760 .set_lease_key = smb2_set_lease_key,
1761 .new_lease_key = smb2_new_lease_key,
1762 .generate_signingkey = generate_smb3signingkey,
1763 .calc_signature = smb3_calc_signature,
1764 .set_integrity = smb3_set_integrity,
1765 .is_read_op = smb21_is_read_op,
1766 .set_oplock_level = smb3_set_oplock_level,
1767 .create_lease_buf = smb3_create_lease_buf,
1768 .parse_lease_buf = smb3_parse_lease_buf,
1769 .clone_range = smb2_clone_range,
1770 .duplicate_extents = smb2_duplicate_extents,
1771 .validate_negotiate = smb3_validate_negotiate,
1772 .wp_retry_size = smb2_wp_retry_size,
1773 .dir_needs_close = smb2_dir_needs_close,
1774 .fallocate = smb3_fallocate,
1777 #ifdef CONFIG_CIFS_SMB311
1778 struct smb_version_operations smb311_operations = {
1779 .compare_fids = smb2_compare_fids,
1780 .setup_request = smb2_setup_request,
1781 .setup_async_request = smb2_setup_async_request,
1782 .check_receive = smb2_check_receive,
1783 .add_credits = smb2_add_credits,
1784 .set_credits = smb2_set_credits,
1785 .get_credits_field = smb2_get_credits_field,
1786 .get_credits = smb2_get_credits,
1787 .wait_mtu_credits = smb2_wait_mtu_credits,
1788 .get_next_mid = smb2_get_next_mid,
1789 .read_data_offset = smb2_read_data_offset,
1790 .read_data_length = smb2_read_data_length,
1791 .map_error = map_smb2_to_linux_error,
1792 .find_mid = smb2_find_mid,
1793 .check_message = smb2_check_message,
1794 .dump_detail = smb2_dump_detail,
1795 .clear_stats = smb2_clear_stats,
1796 .print_stats = smb2_print_stats,
1797 .dump_share_caps = smb2_dump_share_caps,
1798 .is_oplock_break = smb2_is_valid_oplock_break,
1799 .handle_cancelled_mid = smb2_handle_cancelled_mid,
1800 .downgrade_oplock = smb2_downgrade_oplock,
1801 .need_neg = smb2_need_neg,
1802 .negotiate = smb2_negotiate,
1803 .negotiate_wsize = smb2_negotiate_wsize,
1804 .negotiate_rsize = smb2_negotiate_rsize,
1805 .sess_setup = SMB2_sess_setup,
1806 .logoff = SMB2_logoff,
1807 .tree_connect = SMB2_tcon,
1808 .tree_disconnect = SMB2_tdis,
1809 .qfs_tcon = smb3_qfs_tcon,
1810 .is_path_accessible = smb2_is_path_accessible,
1811 .can_echo = smb2_can_echo,
1813 .query_path_info = smb2_query_path_info,
1814 .get_srv_inum = smb2_get_srv_inum,
1815 .query_file_info = smb2_query_file_info,
1816 .set_path_size = smb2_set_path_size,
1817 .set_file_size = smb2_set_file_size,
1818 .set_file_info = smb2_set_file_info,
1819 .set_compression = smb2_set_compression,
1820 .mkdir = smb2_mkdir,
1821 .mkdir_setinfo = smb2_mkdir_setinfo,
1822 .rmdir = smb2_rmdir,
1823 .unlink = smb2_unlink,
1824 .rename = smb2_rename_path,
1825 .create_hardlink = smb2_create_hardlink,
1826 .query_symlink = smb2_query_symlink,
1827 .query_mf_symlink = smb3_query_mf_symlink,
1828 .create_mf_symlink = smb3_create_mf_symlink,
1829 .open = smb2_open_file,
1830 .set_fid = smb2_set_fid,
1831 .close = smb2_close_file,
1832 .flush = smb2_flush_file,
1833 .async_readv = smb2_async_readv,
1834 .async_writev = smb2_async_writev,
1835 .sync_read = smb2_sync_read,
1836 .sync_write = smb2_sync_write,
1837 .query_dir_first = smb2_query_dir_first,
1838 .query_dir_next = smb2_query_dir_next,
1839 .close_dir = smb2_close_dir,
1840 .calc_smb_size = smb2_calc_size,
1841 .is_status_pending = smb2_is_status_pending,
1842 .is_session_expired = smb2_is_session_expired,
1843 .oplock_response = smb2_oplock_response,
1844 .queryfs = smb2_queryfs,
1845 .mand_lock = smb2_mand_lock,
1846 .mand_unlock_range = smb2_unlock_range,
1847 .push_mand_locks = smb2_push_mandatory_locks,
1848 .get_lease_key = smb2_get_lease_key,
1849 .set_lease_key = smb2_set_lease_key,
1850 .new_lease_key = smb2_new_lease_key,
1851 .generate_signingkey = generate_smb3signingkey,
1852 .calc_signature = smb3_calc_signature,
1853 .set_integrity = smb3_set_integrity,
1854 .is_read_op = smb21_is_read_op,
1855 .set_oplock_level = smb3_set_oplock_level,
1856 .create_lease_buf = smb3_create_lease_buf,
1857 .parse_lease_buf = smb3_parse_lease_buf,
1858 .clone_range = smb2_clone_range,
1859 .duplicate_extents = smb2_duplicate_extents,
1860 /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */
1861 .wp_retry_size = smb2_wp_retry_size,
1862 .dir_needs_close = smb2_dir_needs_close,
1863 .fallocate = smb3_fallocate,
1865 #endif /* CIFS_SMB311 */
1867 struct smb_version_values smb20_values = {
1868 .version_string = SMB20_VERSION_STRING,
1869 .protocol_id = SMB20_PROT_ID,
1870 .req_capabilities = 0, /* MBZ */
1871 .large_lock_type = 0,
1872 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1873 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1874 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1875 .header_size = sizeof(struct smb2_hdr),
1876 .max_header_size = MAX_SMB2_HDR_SIZE,
1877 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1878 .lock_cmd = SMB2_LOCK,
1880 .cap_nt_find = SMB2_NT_FIND,
1881 .cap_large_files = SMB2_LARGE_FILES,
1882 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1883 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
1884 .create_lease_size = sizeof(struct create_lease),
1887 struct smb_version_values smb21_values = {
1888 .version_string = SMB21_VERSION_STRING,
1889 .protocol_id = SMB21_PROT_ID,
1890 .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */
1891 .large_lock_type = 0,
1892 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1893 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1894 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1895 .header_size = sizeof(struct smb2_hdr),
1896 .max_header_size = MAX_SMB2_HDR_SIZE,
1897 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1898 .lock_cmd = SMB2_LOCK,
1900 .cap_nt_find = SMB2_NT_FIND,
1901 .cap_large_files = SMB2_LARGE_FILES,
1902 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1903 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
1904 .create_lease_size = sizeof(struct create_lease),
1907 struct smb_version_values smb30_values = {
1908 .version_string = SMB30_VERSION_STRING,
1909 .protocol_id = SMB30_PROT_ID,
1910 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES,
1911 .large_lock_type = 0,
1912 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1913 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1914 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1915 .header_size = sizeof(struct smb2_hdr),
1916 .max_header_size = MAX_SMB2_HDR_SIZE,
1917 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1918 .lock_cmd = SMB2_LOCK,
1920 .cap_nt_find = SMB2_NT_FIND,
1921 .cap_large_files = SMB2_LARGE_FILES,
1922 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1923 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
1924 .create_lease_size = sizeof(struct create_lease_v2),
1927 struct smb_version_values smb302_values = {
1928 .version_string = SMB302_VERSION_STRING,
1929 .protocol_id = SMB302_PROT_ID,
1930 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES,
1931 .large_lock_type = 0,
1932 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1933 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1934 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1935 .header_size = sizeof(struct smb2_hdr),
1936 .max_header_size = MAX_SMB2_HDR_SIZE,
1937 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1938 .lock_cmd = SMB2_LOCK,
1940 .cap_nt_find = SMB2_NT_FIND,
1941 .cap_large_files = SMB2_LARGE_FILES,
1942 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1943 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
1944 .create_lease_size = sizeof(struct create_lease_v2),
1947 #ifdef CONFIG_CIFS_SMB311
1948 struct smb_version_values smb311_values = {
1949 .version_string = SMB311_VERSION_STRING,
1950 .protocol_id = SMB311_PROT_ID,
1951 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES,
1952 .large_lock_type = 0,
1953 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1954 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1955 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1956 .header_size = sizeof(struct smb2_hdr),
1957 .max_header_size = MAX_SMB2_HDR_SIZE,
1958 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1959 .lock_cmd = SMB2_LOCK,
1961 .cap_nt_find = SMB2_NT_FIND,
1962 .cap_large_files = SMB2_LARGE_FILES,
1963 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1964 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
1965 .create_lease_size = sizeof(struct create_lease_v2),