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Check SMB3 dialects against downgrade attacks
[mirror_ubuntu-artful-kernel.git] / fs / cifs / smb2ops.c
CommitLineData
1080ef75
SF		 1/*
2 * SMB2 version specific operations
3 *
4 * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
5 *
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.
9 *
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.
14 *
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
18 */
19
3a3bab50 20#include <linux/pagemap.h>
6fc05c25 21#include <linux/vfs.h>
1080ef75 22#include "cifsglob.h"
2dc7e1c0
PS		 23#include "smb2pdu.h"
24#include "smb2proto.h"
28ea5290
PS		 25#include "cifsproto.h"
26#include "cifs_debug.h"
b42bf888 27#include "cifs_unicode.h"
2e44b288 28#include "smb2status.h"
6fc05c25 29#include "smb2glob.h"
28ea5290
PS		 30
31static int
32change_conf(struct TCP_Server_Info *server)
33{
34 server->credits += server->echo_credits + server->oplock_credits;
35 server->oplock_credits = server->echo_credits = 0;
36 switch (server->credits) {
37 case 0:
38 return -1;
39 case 1:
40 server->echoes = false;
41 server->oplocks = false;
f96637be 42 cifs_dbg(VFS, "disabling echoes and oplocks\n");
28ea5290
PS		 43 break;
44 case 2:
45 server->echoes = true;
46 server->oplocks = false;
47 server->echo_credits = 1;
f96637be 48 cifs_dbg(FYI, "disabling oplocks\n");
28ea5290
PS		 49 break;
50 default:
51 server->echoes = true;
52 server->oplocks = true;
53 server->echo_credits = 1;
54 server->oplock_credits = 1;
55 }
56 server->credits -= server->echo_credits + server->oplock_credits;
57 return 0;
58}
59
60static void
61smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
62 const int optype)
63{
64 int *val, rc = 0;
65 spin_lock(&server->req_lock);
66 val = server->ops->get_credits_field(server, optype);
67 *val += add;
68 server->in_flight--;
ec2e4523 69 if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP)
28ea5290 70 rc = change_conf(server);
983c88a4
PS		 71 /*
72 * Sometimes server returns 0 credits on oplock break ack - we need to
73 * rebalance credits in this case.
74 */
75 else if (server->in_flight > 0 && server->oplock_credits == 0 &&
76 server->oplocks) {
77 if (server->credits > 1) {
78 server->credits--;
79 server->oplock_credits++;
80 }
81 }
28ea5290
PS		 82 spin_unlock(&server->req_lock);
83 wake_up(&server->request_q);
84 if (rc)
85 cifs_reconnect(server);
86}
87
88static void
89smb2_set_credits(struct TCP_Server_Info *server, const int val)
90{
91 spin_lock(&server->req_lock);
92 server->credits = val;
93 spin_unlock(&server->req_lock);
94}
95
96static int *
97smb2_get_credits_field(struct TCP_Server_Info *server, const int optype)
98{
99 switch (optype) {
100 case CIFS_ECHO_OP:
101 return &server->echo_credits;
102 case CIFS_OBREAK_OP:
103 return &server->oplock_credits;
104 default:
105 return &server->credits;
106 }
107}
108
109static unsigned int
110smb2_get_credits(struct mid_q_entry *mid)
111{
112 return le16_to_cpu(((struct smb2_hdr *)mid->resp_buf)->CreditRequest);
113}
2dc7e1c0
PS		 114
115static __u64
116smb2_get_next_mid(struct TCP_Server_Info *server)
117{
118 __u64 mid;
119 /* for SMB2 we need the current value */
120 spin_lock(&GlobalMid_Lock);
121 mid = server->CurrentMid++;
122 spin_unlock(&GlobalMid_Lock);
123 return mid;
124}
1080ef75 125
093b2bda
PS		 126static struct mid_q_entry *
127smb2_find_mid(struct TCP_Server_Info *server, char *buf)
128{
129 struct mid_q_entry *mid;
130 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
131
132 spin_lock(&GlobalMid_Lock);
133 list_for_each_entry(mid, &server->pending_mid_q, qhead) {
134 if ((mid->mid == hdr->MessageId) &&
135 (mid->mid_state == MID_REQUEST_SUBMITTED) &&
136 (mid->command == hdr->Command)) {
137 spin_unlock(&GlobalMid_Lock);
138 return mid;
139 }
140 }
141 spin_unlock(&GlobalMid_Lock);
142 return NULL;
143}
144
145static void
146smb2_dump_detail(void *buf)
147{
148#ifdef CONFIG_CIFS_DEBUG2
149 struct smb2_hdr *smb = (struct smb2_hdr *)buf;
150
f96637be
JP		 151 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
152 smb->Command, smb->Status, smb->Flags, smb->MessageId,
153 smb->ProcessId);
154 cifs_dbg(VFS, "smb buf %p len %u\n", smb, smb2_calc_size(smb));
093b2bda
PS		 155#endif
156}
157
ec2e4523
PS		 158static bool
159smb2_need_neg(struct TCP_Server_Info *server)
160{
161 return server->max_read == 0;
162}
163
164static int
165smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
166{
167 int rc;
168 ses->server->CurrentMid = 0;
169 rc = SMB2_negotiate(xid, ses);
170 /* BB we probably don't need to retry with modern servers */
171 if (rc == -EAGAIN)
172 rc = -EHOSTDOWN;
173 return rc;
174}
175
3a3bab50
PS		 176static unsigned int
177smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
178{
179 struct TCP_Server_Info *server = tcon->ses->server;
180 unsigned int wsize;
181
182 /* start with specified wsize, or default */
183 wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE;
184 wsize = min_t(unsigned int, wsize, server->max_write);
185 /*
186 * limit write size to 2 ** 16, because we don't support multicredit
187 * requests now.
188 */
189 wsize = min_t(unsigned int, wsize, 2 << 15);
190
3a3bab50
PS		 191 return wsize;
192}
193
194static unsigned int
195smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
196{
197 struct TCP_Server_Info *server = tcon->ses->server;
198 unsigned int rsize;
199
200 /* start with specified rsize, or default */
201 rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE;
202 rsize = min_t(unsigned int, rsize, server->max_read);
203 /*
204 * limit write size to 2 ** 16, because we don't support multicredit
205 * requests now.
206 */
207 rsize = min_t(unsigned int, rsize, 2 << 15);
208
3a3bab50
PS		 209 return rsize;
210}
211
c481e9fe
SF		 212#ifdef CONFIG_CIFS_STATS2
213static int
214SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
215{
216 int rc;
217 unsigned int ret_data_len = 0;
218 struct network_interface_info_ioctl_rsp *out_buf;
219
220 rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
221 FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
222 NULL /* no data input */, 0 /* no data input */,
223 (char **)&out_buf, &ret_data_len);
224
225 if ((rc == 0) && (ret_data_len > 0)) {
226 /* Dump info on first interface */
227 cifs_dbg(FYI, "Adapter Capability 0x%x\t",
228 le32_to_cpu(out_buf->Capability));
229 cifs_dbg(FYI, "Link Speed %lld\n",
230 le64_to_cpu(out_buf->LinkSpeed));
231 } else
232 cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
233
234 return rc;
235}
236#endif /* STATS2 */
237
af6a12ea
SF		 238static void
239smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
240{
241 int rc;
242 __le16 srch_path = 0; /* Null - open root of share */
243 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
244 struct cifs_open_parms oparms;
245 struct cifs_fid fid;
246
247 oparms.tcon = tcon;
248 oparms.desired_access = FILE_READ_ATTRIBUTES;
249 oparms.disposition = FILE_OPEN;
250 oparms.create_options = 0;
251 oparms.fid = &fid;
252 oparms.reconnect = false;
253
254 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
255 if (rc)
256 return;
257
c481e9fe
SF		 258#ifdef CONFIG_CIFS_STATS2
259 SMB3_request_interfaces(xid, tcon);
260#endif /* STATS2 */
261
af6a12ea
SF		 262 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
263 FS_ATTRIBUTE_INFORMATION);
264 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
265 FS_DEVICE_INFORMATION);
266 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
267 FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
268 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
269 return;
270}
271
34f62640
SF		 272static void
273smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
274{
275 int rc;
276 __le16 srch_path = 0; /* Null - open root of share */
277 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
278 struct cifs_open_parms oparms;
279 struct cifs_fid fid;
280
281 oparms.tcon = tcon;
282 oparms.desired_access = FILE_READ_ATTRIBUTES;
283 oparms.disposition = FILE_OPEN;
284 oparms.create_options = 0;
285 oparms.fid = &fid;
286 oparms.reconnect = false;
287
288 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
289 if (rc)
290 return;
291
2167114c
SF		 292 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
293 FS_ATTRIBUTE_INFORMATION);
294 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
295 FS_DEVICE_INFORMATION);
34f62640
SF		 296 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
297 return;
298}
299
2503a0db
PS		 300static int
301smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
302 struct cifs_sb_info *cifs_sb, const char *full_path)
303{
304 int rc;
2503a0db 305 __le16 *utf16_path;
2e44b288 306 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
064f6047
PS		 307 struct cifs_open_parms oparms;
308 struct cifs_fid fid;
2503a0db
PS		 309
310 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
311 if (!utf16_path)
312 return -ENOMEM;
313
064f6047
PS		 314 oparms.tcon = tcon;
315 oparms.desired_access = FILE_READ_ATTRIBUTES;
316 oparms.disposition = FILE_OPEN;
317 oparms.create_options = 0;
318 oparms.fid = &fid;
9cbc0b73 319 oparms.reconnect = false;
064f6047 320
b42bf888 321 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
2503a0db
PS		 322 if (rc) {
323 kfree(utf16_path);
324 return rc;
325 }
326
064f6047 327 rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
2503a0db
PS		 328 kfree(utf16_path);
329 return rc;
330}
331
be4cb9e3
PS		 332static int
333smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
334 struct cifs_sb_info *cifs_sb, const char *full_path,
335 u64 *uniqueid, FILE_ALL_INFO *data)
336{
337 *uniqueid = le64_to_cpu(data->IndexNumber);
338 return 0;
339}
340
b7546bc5
PS		 341static int
342smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
343 struct cifs_fid *fid, FILE_ALL_INFO *data)
344{
345 int rc;
346 struct smb2_file_all_info *smb2_data;
347
348 smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
349 GFP_KERNEL);
350 if (smb2_data == NULL)
351 return -ENOMEM;
352
353 rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid,
354 smb2_data);
355 if (!rc)
356 move_smb2_info_to_cifs(data, smb2_data);
357 kfree(smb2_data);
358 return rc;
359}
360
9094fad1
PS		 361static bool
362smb2_can_echo(struct TCP_Server_Info *server)
363{
364 return server->echoes;
365}
366
d60622eb
PS		 367static void
368smb2_clear_stats(struct cifs_tcon *tcon)
369{
370#ifdef CONFIG_CIFS_STATS
371 int i;
372 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
373 atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
374 atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
375 }
376#endif
377}
378
769ee6a4
SF		 379static void
380smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
381{
382 seq_puts(m, "\n\tShare Capabilities:");
383 if (tcon->capabilities & SMB2_SHARE_CAP_DFS)
384 seq_puts(m, " DFS,");
385 if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY)
386 seq_puts(m, " CONTINUOUS AVAILABILITY,");
387 if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT)
388 seq_puts(m, " SCALEOUT,");
389 if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER)
390 seq_puts(m, " CLUSTER,");
391 if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC)
392 seq_puts(m, " ASYMMETRIC,");
393 if (tcon->capabilities == 0)
394 seq_puts(m, " None");
af6a12ea
SF		 395 if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
396 seq_puts(m, " Aligned,");
397 if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
398 seq_puts(m, " Partition Aligned,");
399 if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
400 seq_puts(m, " SSD,");
401 if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
402 seq_puts(m, " TRIM-support,");
403
769ee6a4 404 seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
af6a12ea
SF		 405 if (tcon->perf_sector_size)
406 seq_printf(m, "\tOptimal sector size: 0x%x",
407 tcon->perf_sector_size);
769ee6a4
SF		 408}
409
d60622eb
PS		 410static void
411smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
412{
413#ifdef CONFIG_CIFS_STATS
414 atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
415 atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
416 seq_printf(m, "\nNegotiates: %d sent %d failed",
417 atomic_read(&sent[SMB2_NEGOTIATE_HE]),
418 atomic_read(&failed[SMB2_NEGOTIATE_HE]));
419 seq_printf(m, "\nSessionSetups: %d sent %d failed",
420 atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
421 atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
d60622eb
PS		 422 seq_printf(m, "\nLogoffs: %d sent %d failed",
423 atomic_read(&sent[SMB2_LOGOFF_HE]),
424 atomic_read(&failed[SMB2_LOGOFF_HE]));
425 seq_printf(m, "\nTreeConnects: %d sent %d failed",
426 atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
427 atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
428 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
429 atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
430 atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
431 seq_printf(m, "\nCreates: %d sent %d failed",
432 atomic_read(&sent[SMB2_CREATE_HE]),
433 atomic_read(&failed[SMB2_CREATE_HE]));
434 seq_printf(m, "\nCloses: %d sent %d failed",
435 atomic_read(&sent[SMB2_CLOSE_HE]),
436 atomic_read(&failed[SMB2_CLOSE_HE]));
437 seq_printf(m, "\nFlushes: %d sent %d failed",
438 atomic_read(&sent[SMB2_FLUSH_HE]),
439 atomic_read(&failed[SMB2_FLUSH_HE]));
440 seq_printf(m, "\nReads: %d sent %d failed",
441 atomic_read(&sent[SMB2_READ_HE]),
442 atomic_read(&failed[SMB2_READ_HE]));
443 seq_printf(m, "\nWrites: %d sent %d failed",
444 atomic_read(&sent[SMB2_WRITE_HE]),
445 atomic_read(&failed[SMB2_WRITE_HE]));
446 seq_printf(m, "\nLocks: %d sent %d failed",
447 atomic_read(&sent[SMB2_LOCK_HE]),
448 atomic_read(&failed[SMB2_LOCK_HE]));
449 seq_printf(m, "\nIOCTLs: %d sent %d failed",
450 atomic_read(&sent[SMB2_IOCTL_HE]),
451 atomic_read(&failed[SMB2_IOCTL_HE]));
452 seq_printf(m, "\nCancels: %d sent %d failed",
453 atomic_read(&sent[SMB2_CANCEL_HE]),
454 atomic_read(&failed[SMB2_CANCEL_HE]));
455 seq_printf(m, "\nEchos: %d sent %d failed",
456 atomic_read(&sent[SMB2_ECHO_HE]),
457 atomic_read(&failed[SMB2_ECHO_HE]));
458 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
459 atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
460 atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
461 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
462 atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
463 atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
464 seq_printf(m, "\nQueryInfos: %d sent %d failed",
465 atomic_read(&sent[SMB2_QUERY_INFO_HE]),
466 atomic_read(&failed[SMB2_QUERY_INFO_HE]));
467 seq_printf(m, "\nSetInfos: %d sent %d failed",
468 atomic_read(&sent[SMB2_SET_INFO_HE]),
469 atomic_read(&failed[SMB2_SET_INFO_HE]));
470 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
471 atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
472 atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
473#endif
474}
475
f0df737e
PS		 476static void
477smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
478{
2e44b288 479 struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
53ef1016
PS		 480 struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
481
f0df737e
PS		 482 cfile->fid.persistent_fid = fid->persistent_fid;
483 cfile->fid.volatile_fid = fid->volatile_fid;
42873b0a
PS		 484 server->ops->set_oplock_level(cinode, oplock, fid->epoch,
485 &fid->purge_cache);
18cceb6a 486 cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
f0df737e
PS		 487}
488
760ad0ca 489static void
f0df737e
PS		 490smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
491 struct cifs_fid *fid)
492{
760ad0ca 493 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
f0df737e
PS		 494}
495
41c1358e
SF		 496static int
497SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
498 u64 persistent_fid, u64 volatile_fid,
499 struct copychunk_ioctl *pcchunk)
500{
501 int rc;
502 unsigned int ret_data_len;
503 struct resume_key_req *res_key;
504
505 rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
506 FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
507 NULL, 0 /* no input */,
508 (char **)&res_key, &ret_data_len);
509
510 if (rc) {
511 cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
512 goto req_res_key_exit;
513 }
514 if (ret_data_len < sizeof(struct resume_key_req)) {
515 cifs_dbg(VFS, "Invalid refcopy resume key length\n");
516 rc = -EINVAL;
517 goto req_res_key_exit;
518 }
519 memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
520
521req_res_key_exit:
522 kfree(res_key);
523 return rc;
524}
525
526static int
527smb2_clone_range(const unsigned int xid,
528 struct cifsFileInfo *srcfile,
529 struct cifsFileInfo *trgtfile, u64 src_off,
530 u64 len, u64 dest_off)
531{
532 int rc;
533 unsigned int ret_data_len;
534 struct copychunk_ioctl *pcchunk;
9bf0c9cd
SF		 535 struct copychunk_ioctl_rsp *retbuf = NULL;
536 struct cifs_tcon *tcon;
537 int chunks_copied = 0;
538 bool chunk_sizes_updated = false;
41c1358e
SF		 539
540 pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
541
542 if (pcchunk == NULL)
543 return -ENOMEM;
544
545 cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n");
546 /* Request a key from the server to identify the source of the copy */
547 rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
548 srcfile->fid.persistent_fid,
549 srcfile->fid.volatile_fid, pcchunk);
550
551 /* Note: request_res_key sets res_key null only if rc !=0 */
552 if (rc)
9bf0c9cd 553 goto cchunk_out;
41c1358e
SF		 554
555 /* For now array only one chunk long, will make more flexible later */
556 pcchunk->ChunkCount = __constant_cpu_to_le32(1);
557 pcchunk->Reserved = 0;
41c1358e
SF		 558 pcchunk->Reserved2 = 0;
559
9bf0c9cd 560 tcon = tlink_tcon(trgtfile->tlink);
41c1358e 561
9bf0c9cd
SF		 562 while (len > 0) {
563 pcchunk->SourceOffset = cpu_to_le64(src_off);
564 pcchunk->TargetOffset = cpu_to_le64(dest_off);
565 pcchunk->Length =
566 cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk));
41c1358e 567
9bf0c9cd
SF		 568 /* Request server copy to target from src identified by key */
569 rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
570 trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
571 true /* is_fsctl */, (char *)pcchunk,
572 sizeof(struct copychunk_ioctl), (char **)&retbuf,
573 &ret_data_len);
574 if (rc == 0) {
575 if (ret_data_len !=
576 sizeof(struct copychunk_ioctl_rsp)) {
577 cifs_dbg(VFS, "invalid cchunk response size\n");
578 rc = -EIO;
579 goto cchunk_out;
580 }
581 if (retbuf->TotalBytesWritten == 0) {
582 cifs_dbg(FYI, "no bytes copied\n");
583 rc = -EIO;
584 goto cchunk_out;
585 }
586 /*
587 * Check if server claimed to write more than we asked
588 */
589 if (le32_to_cpu(retbuf->TotalBytesWritten) >
590 le32_to_cpu(pcchunk->Length)) {
591 cifs_dbg(VFS, "invalid copy chunk response\n");
592 rc = -EIO;
593 goto cchunk_out;
594 }
595 if (le32_to_cpu(retbuf->ChunksWritten) != 1) {
596 cifs_dbg(VFS, "invalid num chunks written\n");
597 rc = -EIO;
598 goto cchunk_out;
599 }
600 chunks_copied++;
601
602 src_off += le32_to_cpu(retbuf->TotalBytesWritten);
603 dest_off += le32_to_cpu(retbuf->TotalBytesWritten);
604 len -= le32_to_cpu(retbuf->TotalBytesWritten);
605
606 cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %d\n",
607 le32_to_cpu(retbuf->ChunksWritten),
608 le32_to_cpu(retbuf->ChunkBytesWritten),
609 le32_to_cpu(retbuf->TotalBytesWritten));
610 } else if (rc == -EINVAL) {
611 if (ret_data_len != sizeof(struct copychunk_ioctl_rsp))
612 goto cchunk_out;
613
614 cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n",
615 le32_to_cpu(retbuf->ChunksWritten),
616 le32_to_cpu(retbuf->ChunkBytesWritten),
617 le32_to_cpu(retbuf->TotalBytesWritten));
618
619 /*
620 * Check if this is the first request using these sizes,
621 * (ie check if copy succeed once with original sizes
622 * and check if the server gave us different sizes after
623 * we already updated max sizes on previous request).
624 * if not then why is the server returning an error now
625 */
626 if ((chunks_copied != 0) || chunk_sizes_updated)
627 goto cchunk_out;
628
629 /* Check that server is not asking us to grow size */
630 if (le32_to_cpu(retbuf->ChunkBytesWritten) <
631 tcon->max_bytes_chunk)
632 tcon->max_bytes_chunk =
633 le32_to_cpu(retbuf->ChunkBytesWritten);
634 else
635 goto cchunk_out; /* server gave us bogus size */
636
637 /* No need to change MaxChunks since already set to 1 */
638 chunk_sizes_updated = true;
639 }
640 }
41c1358e 641
9bf0c9cd 642cchunk_out:
41c1358e
SF		 643 kfree(pcchunk);
644 return rc;
645}
646
7a5cfb19
PS		 647static int
648smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
649 struct cifs_fid *fid)
650{
651 return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
652}
653
09a4707e
PS		 654static unsigned int
655smb2_read_data_offset(char *buf)
656{
657 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
658 return rsp->DataOffset;
659}
660
661static unsigned int
662smb2_read_data_length(char *buf)
663{
664 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
665 return le32_to_cpu(rsp->DataLength);
666}
667
d8e05039
PS		 668
669static int
670smb2_sync_read(const unsigned int xid, struct cifsFileInfo *cfile,
671 struct cifs_io_parms *parms, unsigned int *bytes_read,
672 char **buf, int *buf_type)
673{
674 parms->persistent_fid = cfile->fid.persistent_fid;
675 parms->volatile_fid = cfile->fid.volatile_fid;
676 return SMB2_read(xid, parms, bytes_read, buf, buf_type);
677}
678
009d3443
PS		 679static int
680smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile,
681 struct cifs_io_parms *parms, unsigned int *written,
682 struct kvec *iov, unsigned long nr_segs)
683{
684
685 parms->persistent_fid = cfile->fid.persistent_fid;
686 parms->volatile_fid = cfile->fid.volatile_fid;
687 return SMB2_write(xid, parms, written, iov, nr_segs);
688}
689
c839ff24
PS		 690static int
691smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
692 struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
693{
694 __le64 eof = cpu_to_le64(size);
695 return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
696 cfile->fid.volatile_fid, cfile->pid, &eof);
697}
698
64a5cfa6
SF		 699static int
700smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
701 struct cifsFileInfo *cfile)
702{
703 return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
704 cfile->fid.volatile_fid);
705}
706
d324f08d
PS		 707static int
708smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
709 const char *path, struct cifs_sb_info *cifs_sb,
710 struct cifs_fid *fid, __u16 search_flags,
711 struct cifs_search_info *srch_inf)
712{
713 __le16 *utf16_path;
714 int rc;
2e44b288 715 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
064f6047 716 struct cifs_open_parms oparms;
d324f08d
PS		 717
718 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
719 if (!utf16_path)
720 return -ENOMEM;
721
064f6047
PS		 722 oparms.tcon = tcon;
723 oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
724 oparms.disposition = FILE_OPEN;
725 oparms.create_options = 0;
726 oparms.fid = fid;
9cbc0b73 727 oparms.reconnect = false;
064f6047 728
b42bf888 729 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
d324f08d
PS		 730 kfree(utf16_path);
731 if (rc) {
f96637be 732 cifs_dbg(VFS, "open dir failed\n");
d324f08d
PS		 733 return rc;
734 }
735
736 srch_inf->entries_in_buffer = 0;
737 srch_inf->index_of_last_entry = 0;
d324f08d 738
064f6047
PS		 739 rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
740 fid->volatile_fid, 0, srch_inf);
d324f08d 741 if (rc) {
f96637be 742 cifs_dbg(VFS, "query directory failed\n");
064f6047 743 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
d324f08d
PS		 744 }
745 return rc;
746}
747
748static int
749smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
750 struct cifs_fid *fid, __u16 search_flags,
751 struct cifs_search_info *srch_inf)
752{
753 return SMB2_query_directory(xid, tcon, fid->persistent_fid,
754 fid->volatile_fid, 0, srch_inf);
755}
756
757static int
758smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
759 struct cifs_fid *fid)
760{
761 return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
762}
763
2e44b288
PS		 764/*
765* If we negotiate SMB2 protocol and get STATUS_PENDING - update
766* the number of credits and return true. Otherwise - return false.
767*/
768static bool
769smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length)
770{
771 struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
772
12e8a208 773 if (hdr->Status != STATUS_PENDING)
2e44b288
PS		 774 return false;
775
776 if (!length) {
777 spin_lock(&server->req_lock);
778 server->credits += le16_to_cpu(hdr->CreditRequest);
779 spin_unlock(&server->req_lock);
780 wake_up(&server->request_q);
781 }
782
783 return true;
784}
785
983c88a4
PS		 786static int
787smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
788 struct cifsInodeInfo *cinode)
789{
0822f514
PS		 790 if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING)
791 return SMB2_lease_break(0, tcon, cinode->lease_key,
792 smb2_get_lease_state(cinode));
793
983c88a4
PS		 794 return SMB2_oplock_break(0, tcon, fid->persistent_fid,
795 fid->volatile_fid,
18cceb6a 796 CIFS_CACHE_READ(cinode) ? 1 : 0);
983c88a4
PS		 797}
798
6fc05c25
PS		 799static int
800smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
801 struct kstatfs *buf)
802{
803 int rc;
6fc05c25
PS		 804 __le16 srch_path = 0; /* Null - open root of share */
805 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
064f6047
PS		 806 struct cifs_open_parms oparms;
807 struct cifs_fid fid;
808
809 oparms.tcon = tcon;
810 oparms.desired_access = FILE_READ_ATTRIBUTES;
811 oparms.disposition = FILE_OPEN;
812 oparms.create_options = 0;
813 oparms.fid = &fid;
9cbc0b73 814 oparms.reconnect = false;
6fc05c25 815
b42bf888 816 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
6fc05c25
PS		 817 if (rc)
818 return rc;
819 buf->f_type = SMB2_MAGIC_NUMBER;
064f6047
PS		 820 rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid,
821 buf);
822 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
6fc05c25
PS		 823 return rc;
824}
825
027e8eec
PS		 826static bool
827smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
828{
829 return ob1->fid.persistent_fid == ob2->fid.persistent_fid &&
830 ob1->fid.volatile_fid == ob2->fid.volatile_fid;
831}
832
f7ba7fe6
PS		 833static int
834smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
835 __u64 length, __u32 type, int lock, int unlock, bool wait)
836{
837 if (unlock && !lock)
838 type = SMB2_LOCKFLAG_UNLOCK;
839 return SMB2_lock(xid, tlink_tcon(cfile->tlink),
840 cfile->fid.persistent_fid, cfile->fid.volatile_fid,
841 current->tgid, length, offset, type, wait);
842}
843
b8c32dbb
PS		 844static void
845smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid)
846{
847 memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE);
848}
849
850static void
851smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid)
852{
853 memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
854}
855
856static void
857smb2_new_lease_key(struct cifs_fid *fid)
858{
859 get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE);
860}
861
b42bf888
PS		 862static int
863smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
864 const char *full_path, char **target_path,
865 struct cifs_sb_info *cifs_sb)
866{
867 int rc;
868 __le16 *utf16_path;
869 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
870 struct cifs_open_parms oparms;
871 struct cifs_fid fid;
872 struct smb2_err_rsp *err_buf = NULL;
873 struct smb2_symlink_err_rsp *symlink;
874 unsigned int sub_len, sub_offset;
875
876 cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
877
878 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
879 if (!utf16_path)
880 return -ENOMEM;
881
882 oparms.tcon = tcon;
883 oparms.desired_access = FILE_READ_ATTRIBUTES;
884 oparms.disposition = FILE_OPEN;
885 oparms.create_options = 0;
886 oparms.fid = &fid;
887 oparms.reconnect = false;
888
889 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf);
890
891 if (!rc || !err_buf) {
892 kfree(utf16_path);
893 return -ENOENT;
894 }
895 /* open must fail on symlink - reset rc */
896 rc = 0;
897 symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
898 sub_len = le16_to_cpu(symlink->SubstituteNameLength);
899 sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
900 *target_path = cifs_strndup_from_utf16(
901 (char *)symlink->PathBuffer + sub_offset,
902 sub_len, true, cifs_sb->local_nls);
903 if (!(*target_path)) {
904 kfree(utf16_path);
905 return -ENOMEM;
906 }
907 convert_delimiter(*target_path, '/');
908 cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
909 kfree(utf16_path);
910 return rc;
911}
912
53ef1016 913static void
42873b0a
PS		 914smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
915 unsigned int epoch, bool *purge_cache)
53ef1016
PS		 916{
917 oplock &= 0xFF;
918 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
919 return;
920 if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {
42873b0a 921 cinode->oplock = CIFS_CACHE_RHW_FLG;
53ef1016
PS		 922 cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",
923 &cinode->vfs_inode);
924 } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {
42873b0a 925 cinode->oplock = CIFS_CACHE_RW_FLG;
53ef1016
PS		 926 cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
927 &cinode->vfs_inode);
928 } else if (oplock == SMB2_OPLOCK_LEVEL_II) {
929 cinode->oplock = CIFS_CACHE_READ_FLG;
930 cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
931 &cinode->vfs_inode);
932 } else
933 cinode->oplock = 0;
934}
935
936static void
42873b0a
PS		 937smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
938 unsigned int epoch, bool *purge_cache)
53ef1016
PS		 939{
940 char message[5] = {0};
941
942 oplock &= 0xFF;
943 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
944 return;
945
946 cinode->oplock = 0;
947 if (oplock & SMB2_LEASE_READ_CACHING_HE) {
948 cinode->oplock |= CIFS_CACHE_READ_FLG;
949 strcat(message, "R");
950 }
951 if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) {
952 cinode->oplock |= CIFS_CACHE_HANDLE_FLG;
953 strcat(message, "H");
954 }
955 if (oplock & SMB2_LEASE_WRITE_CACHING_HE) {
956 cinode->oplock |= CIFS_CACHE_WRITE_FLG;
957 strcat(message, "W");
958 }
959 if (!cinode->oplock)
960 strcat(message, "None");
961 cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
962 &cinode->vfs_inode);
963}
964
42873b0a
PS		 965static void
966smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
967 unsigned int epoch, bool *purge_cache)
968{
969 unsigned int old_oplock = cinode->oplock;
970
971 smb21_set_oplock_level(cinode, oplock, epoch, purge_cache);
972
973 if (purge_cache) {
974 *purge_cache = false;
975 if (old_oplock == CIFS_CACHE_READ_FLG) {
976 if (cinode->oplock == CIFS_CACHE_READ_FLG &&
977 (epoch - cinode->epoch > 0))
978 *purge_cache = true;
979 else if (cinode->oplock == CIFS_CACHE_RH_FLG &&
980 (epoch - cinode->epoch > 1))
981 *purge_cache = true;
982 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
983 (epoch - cinode->epoch > 1))
984 *purge_cache = true;
985 else if (cinode->oplock == 0 &&
986 (epoch - cinode->epoch > 0))
987 *purge_cache = true;
988 } else if (old_oplock == CIFS_CACHE_RH_FLG) {
989 if (cinode->oplock == CIFS_CACHE_RH_FLG &&
990 (epoch - cinode->epoch > 0))
991 *purge_cache = true;
992 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
993 (epoch - cinode->epoch > 1))
994 *purge_cache = true;
995 }
996 cinode->epoch = epoch;
997 }
998}
999
53ef1016
PS		 1000static bool
1001smb2_is_read_op(__u32 oplock)
1002{
1003 return oplock == SMB2_OPLOCK_LEVEL_II;
1004}
1005
1006static bool
1007smb21_is_read_op(__u32 oplock)
1008{
1009 return (oplock & SMB2_LEASE_READ_CACHING_HE) &&
1010 !(oplock & SMB2_LEASE_WRITE_CACHING_HE);
1011}
1012
f047390a
PS		 1013static __le32
1014map_oplock_to_lease(u8 oplock)
1015{
1016 if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE)
1017 return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING;
1018 else if (oplock == SMB2_OPLOCK_LEVEL_II)
1019 return SMB2_LEASE_READ_CACHING;
1020 else if (oplock == SMB2_OPLOCK_LEVEL_BATCH)
1021 return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING |
1022 SMB2_LEASE_WRITE_CACHING;
1023 return 0;
1024}
1025
a41a28bd
PS		 1026static char *
1027smb2_create_lease_buf(u8 *lease_key, u8 oplock)
1028{
1029 struct create_lease *buf;
1030
1031 buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
1032 if (!buf)
1033 return NULL;
1034
1035 buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
1036 buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
f047390a 1037 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
a41a28bd
PS		 1038
1039 buf->ccontext.DataOffset = cpu_to_le16(offsetof
1040 (struct create_lease, lcontext));
1041 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context));
1042 buf->ccontext.NameOffset = cpu_to_le16(offsetof
1043 (struct create_lease, Name));
1044 buf->ccontext.NameLength = cpu_to_le16(4);
1045 buf->Name[0] = 'R';
1046 buf->Name[1] = 'q';
1047 buf->Name[2] = 'L';
1048 buf->Name[3] = 's';
1049 return (char *)buf;
1050}
1051
f047390a
PS		 1052static char *
1053smb3_create_lease_buf(u8 *lease_key, u8 oplock)
1054{
1055 struct create_lease_v2 *buf;
1056
1057 buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL);
1058 if (!buf)
1059 return NULL;
1060
1061 buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
1062 buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
1063 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
1064
1065 buf->ccontext.DataOffset = cpu_to_le16(offsetof
1066 (struct create_lease_v2, lcontext));
1067 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2));
1068 buf->ccontext.NameOffset = cpu_to_le16(offsetof
1069 (struct create_lease_v2, Name));
1070 buf->ccontext.NameLength = cpu_to_le16(4);
1071 buf->Name[0] = 'R';
1072 buf->Name[1] = 'q';
1073 buf->Name[2] = 'L';
1074 buf->Name[3] = 's';
1075 return (char *)buf;
1076}
1077
b5c7cde3 1078static __u8
42873b0a 1079smb2_parse_lease_buf(void *buf, unsigned int *epoch)
b5c7cde3
PS		 1080{
1081 struct create_lease *lc = (struct create_lease *)buf;
1082
42873b0a 1083 *epoch = 0; /* not used */
b5c7cde3
PS		 1084 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
1085 return SMB2_OPLOCK_LEVEL_NOCHANGE;
1086 return le32_to_cpu(lc->lcontext.LeaseState);
1087}
1088
f047390a 1089static __u8
42873b0a 1090smb3_parse_lease_buf(void *buf, unsigned int *epoch)
f047390a
PS		 1091{
1092 struct create_lease_v2 *lc = (struct create_lease_v2 *)buf;
1093
42873b0a 1094 *epoch = le16_to_cpu(lc->lcontext.Epoch);
f047390a
PS		 1095 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
1096 return SMB2_OPLOCK_LEVEL_NOCHANGE;
1097 return le32_to_cpu(lc->lcontext.LeaseState);
1098}
1099
53ef1016 1100struct smb_version_operations smb20_operations = {
027e8eec 1101 .compare_fids = smb2_compare_fids,
2dc7e1c0 1102 .setup_request = smb2_setup_request,
c95b8eed 1103 .setup_async_request = smb2_setup_async_request,
2dc7e1c0 1104 .check_receive = smb2_check_receive,
28ea5290
PS		 1105 .add_credits = smb2_add_credits,
1106 .set_credits = smb2_set_credits,
1107 .get_credits_field = smb2_get_credits_field,
1108 .get_credits = smb2_get_credits,
2dc7e1c0 1109 .get_next_mid = smb2_get_next_mid,
09a4707e
PS		 1110 .read_data_offset = smb2_read_data_offset,
1111 .read_data_length = smb2_read_data_length,
1112 .map_error = map_smb2_to_linux_error,
093b2bda
PS		 1113 .find_mid = smb2_find_mid,
1114 .check_message = smb2_check_message,
1115 .dump_detail = smb2_dump_detail,
d60622eb
PS		 1116 .clear_stats = smb2_clear_stats,
1117 .print_stats = smb2_print_stats,
983c88a4 1118 .is_oplock_break = smb2_is_valid_oplock_break,
ec2e4523
PS		 1119 .need_neg = smb2_need_neg,
1120 .negotiate = smb2_negotiate,
3a3bab50
PS		 1121 .negotiate_wsize = smb2_negotiate_wsize,
1122 .negotiate_rsize = smb2_negotiate_rsize,
5478f9ba
PS		 1123 .sess_setup = SMB2_sess_setup,
1124 .logoff = SMB2_logoff,
faaf946a
PS		 1125 .tree_connect = SMB2_tcon,
1126 .tree_disconnect = SMB2_tdis,
34f62640 1127 .qfs_tcon = smb2_qfs_tcon,
2503a0db 1128 .is_path_accessible = smb2_is_path_accessible,
9094fad1
PS		 1129 .can_echo = smb2_can_echo,
1130 .echo = SMB2_echo,
be4cb9e3
PS		 1131 .query_path_info = smb2_query_path_info,
1132 .get_srv_inum = smb2_get_srv_inum,
b7546bc5 1133 .query_file_info = smb2_query_file_info,
c839ff24
PS		 1134 .set_path_size = smb2_set_path_size,
1135 .set_file_size = smb2_set_file_size,
1feeaac7 1136 .set_file_info = smb2_set_file_info,
64a5cfa6 1137 .set_compression = smb2_set_compression,
a0e73183
PS		 1138 .mkdir = smb2_mkdir,
1139 .mkdir_setinfo = smb2_mkdir_setinfo,
1a500f01 1140 .rmdir = smb2_rmdir,
cbe6f439 1141 .unlink = smb2_unlink,
35143eb5 1142 .rename = smb2_rename_path,
568798cc 1143 .create_hardlink = smb2_create_hardlink,
b42bf888 1144 .query_symlink = smb2_query_symlink,
f0df737e
PS		 1145 .open = smb2_open_file,
1146 .set_fid = smb2_set_fid,
1147 .close = smb2_close_file,
7a5cfb19 1148 .flush = smb2_flush_file,
09a4707e 1149 .async_readv = smb2_async_readv,
33319141 1150 .async_writev = smb2_async_writev,
d8e05039 1151 .sync_read = smb2_sync_read,
009d3443 1152 .sync_write = smb2_sync_write,
d324f08d
PS		 1153 .query_dir_first = smb2_query_dir_first,
1154 .query_dir_next = smb2_query_dir_next,
1155 .close_dir = smb2_close_dir,
1156 .calc_smb_size = smb2_calc_size,
2e44b288 1157 .is_status_pending = smb2_is_status_pending,
983c88a4 1158 .oplock_response = smb2_oplock_response,
6fc05c25 1159 .queryfs = smb2_queryfs,
f7ba7fe6
PS		 1160 .mand_lock = smb2_mand_lock,
1161 .mand_unlock_range = smb2_unlock_range,
b140799a 1162 .push_mand_locks = smb2_push_mandatory_locks,
b8c32dbb
PS		 1163 .get_lease_key = smb2_get_lease_key,
1164 .set_lease_key = smb2_set_lease_key,
1165 .new_lease_key = smb2_new_lease_key,
38107d45 1166 .calc_signature = smb2_calc_signature,
53ef1016
PS		 1167 .is_read_op = smb2_is_read_op,
1168 .set_oplock_level = smb2_set_oplock_level,
a41a28bd 1169 .create_lease_buf = smb2_create_lease_buf,
b5c7cde3 1170 .parse_lease_buf = smb2_parse_lease_buf,
41c1358e 1171 .clone_range = smb2_clone_range,
38107d45
SF		 1172};
1173
53ef1016
PS		 1174struct smb_version_operations smb21_operations = {
1175 .compare_fids = smb2_compare_fids,
1176 .setup_request = smb2_setup_request,
1177 .setup_async_request = smb2_setup_async_request,
1178 .check_receive = smb2_check_receive,
1179 .add_credits = smb2_add_credits,
1180 .set_credits = smb2_set_credits,
1181 .get_credits_field = smb2_get_credits_field,
1182 .get_credits = smb2_get_credits,
1183 .get_next_mid = smb2_get_next_mid,
1184 .read_data_offset = smb2_read_data_offset,
1185 .read_data_length = smb2_read_data_length,
1186 .map_error = map_smb2_to_linux_error,
1187 .find_mid = smb2_find_mid,
1188 .check_message = smb2_check_message,
1189 .dump_detail = smb2_dump_detail,
1190 .clear_stats = smb2_clear_stats,
1191 .print_stats = smb2_print_stats,
1192 .is_oplock_break = smb2_is_valid_oplock_break,
1193 .need_neg = smb2_need_neg,
1194 .negotiate = smb2_negotiate,
1195 .negotiate_wsize = smb2_negotiate_wsize,
1196 .negotiate_rsize = smb2_negotiate_rsize,
1197 .sess_setup = SMB2_sess_setup,
1198 .logoff = SMB2_logoff,
1199 .tree_connect = SMB2_tcon,
1200 .tree_disconnect = SMB2_tdis,
34f62640 1201 .qfs_tcon = smb2_qfs_tcon,
53ef1016
PS		 1202 .is_path_accessible = smb2_is_path_accessible,
1203 .can_echo = smb2_can_echo,
1204 .echo = SMB2_echo,
1205 .query_path_info = smb2_query_path_info,
1206 .get_srv_inum = smb2_get_srv_inum,
1207 .query_file_info = smb2_query_file_info,
1208 .set_path_size = smb2_set_path_size,
1209 .set_file_size = smb2_set_file_size,
1210 .set_file_info = smb2_set_file_info,
64a5cfa6 1211 .set_compression = smb2_set_compression,
53ef1016
PS		 1212 .mkdir = smb2_mkdir,
1213 .mkdir_setinfo = smb2_mkdir_setinfo,
1214 .rmdir = smb2_rmdir,
1215 .unlink = smb2_unlink,
1216 .rename = smb2_rename_path,
1217 .create_hardlink = smb2_create_hardlink,
1218 .query_symlink = smb2_query_symlink,
1219 .open = smb2_open_file,
1220 .set_fid = smb2_set_fid,
1221 .close = smb2_close_file,
1222 .flush = smb2_flush_file,
1223 .async_readv = smb2_async_readv,
1224 .async_writev = smb2_async_writev,
1225 .sync_read = smb2_sync_read,
1226 .sync_write = smb2_sync_write,
1227 .query_dir_first = smb2_query_dir_first,
1228 .query_dir_next = smb2_query_dir_next,
1229 .close_dir = smb2_close_dir,
1230 .calc_smb_size = smb2_calc_size,
1231 .is_status_pending = smb2_is_status_pending,
1232 .oplock_response = smb2_oplock_response,
1233 .queryfs = smb2_queryfs,
1234 .mand_lock = smb2_mand_lock,
1235 .mand_unlock_range = smb2_unlock_range,
1236 .push_mand_locks = smb2_push_mandatory_locks,
1237 .get_lease_key = smb2_get_lease_key,
1238 .set_lease_key = smb2_set_lease_key,
1239 .new_lease_key = smb2_new_lease_key,
1240 .calc_signature = smb2_calc_signature,
1241 .is_read_op = smb21_is_read_op,
1242 .set_oplock_level = smb21_set_oplock_level,
a41a28bd 1243 .create_lease_buf = smb2_create_lease_buf,
b5c7cde3 1244 .parse_lease_buf = smb2_parse_lease_buf,
41c1358e 1245 .clone_range = smb2_clone_range,
53ef1016 1246};
38107d45
SF		 1247
1248struct smb_version_operations smb30_operations = {
1249 .compare_fids = smb2_compare_fids,
1250 .setup_request = smb2_setup_request,
1251 .setup_async_request = smb2_setup_async_request,
1252 .check_receive = smb2_check_receive,
1253 .add_credits = smb2_add_credits,
1254 .set_credits = smb2_set_credits,
1255 .get_credits_field = smb2_get_credits_field,
1256 .get_credits = smb2_get_credits,
1257 .get_next_mid = smb2_get_next_mid,
1258 .read_data_offset = smb2_read_data_offset,
1259 .read_data_length = smb2_read_data_length,
1260 .map_error = map_smb2_to_linux_error,
1261 .find_mid = smb2_find_mid,
1262 .check_message = smb2_check_message,
1263 .dump_detail = smb2_dump_detail,
1264 .clear_stats = smb2_clear_stats,
1265 .print_stats = smb2_print_stats,
769ee6a4 1266 .dump_share_caps = smb2_dump_share_caps,
38107d45
SF		 1267 .is_oplock_break = smb2_is_valid_oplock_break,
1268 .need_neg = smb2_need_neg,
1269 .negotiate = smb2_negotiate,
1270 .negotiate_wsize = smb2_negotiate_wsize,
1271 .negotiate_rsize = smb2_negotiate_rsize,
1272 .sess_setup = SMB2_sess_setup,
1273 .logoff = SMB2_logoff,
1274 .tree_connect = SMB2_tcon,
1275 .tree_disconnect = SMB2_tdis,
af6a12ea 1276 .qfs_tcon = smb3_qfs_tcon,
38107d45
SF		 1277 .is_path_accessible = smb2_is_path_accessible,
1278 .can_echo = smb2_can_echo,
1279 .echo = SMB2_echo,
1280 .query_path_info = smb2_query_path_info,
1281 .get_srv_inum = smb2_get_srv_inum,
1282 .query_file_info = smb2_query_file_info,
1283 .set_path_size = smb2_set_path_size,
1284 .set_file_size = smb2_set_file_size,
1285 .set_file_info = smb2_set_file_info,
64a5cfa6 1286 .set_compression = smb2_set_compression,
38107d45
SF		 1287 .mkdir = smb2_mkdir,
1288 .mkdir_setinfo = smb2_mkdir_setinfo,
1289 .rmdir = smb2_rmdir,
1290 .unlink = smb2_unlink,
1291 .rename = smb2_rename_path,
1292 .create_hardlink = smb2_create_hardlink,
b42bf888 1293 .query_symlink = smb2_query_symlink,
38107d45
SF		 1294 .open = smb2_open_file,
1295 .set_fid = smb2_set_fid,
1296 .close = smb2_close_file,
1297 .flush = smb2_flush_file,
1298 .async_readv = smb2_async_readv,
1299 .async_writev = smb2_async_writev,
1300 .sync_read = smb2_sync_read,
1301 .sync_write = smb2_sync_write,
1302 .query_dir_first = smb2_query_dir_first,
1303 .query_dir_next = smb2_query_dir_next,
1304 .close_dir = smb2_close_dir,
1305 .calc_smb_size = smb2_calc_size,
1306 .is_status_pending = smb2_is_status_pending,
1307 .oplock_response = smb2_oplock_response,
1308 .queryfs = smb2_queryfs,
1309 .mand_lock = smb2_mand_lock,
1310 .mand_unlock_range = smb2_unlock_range,
1311 .push_mand_locks = smb2_push_mandatory_locks,
1312 .get_lease_key = smb2_get_lease_key,
1313 .set_lease_key = smb2_set_lease_key,
1314 .new_lease_key = smb2_new_lease_key,
e65a5cb4 1315 .generate_signingkey = generate_smb3signingkey,
38107d45 1316 .calc_signature = smb3_calc_signature,
53ef1016 1317 .is_read_op = smb21_is_read_op,
42873b0a 1318 .set_oplock_level = smb3_set_oplock_level,
f047390a
PS		 1319 .create_lease_buf = smb3_create_lease_buf,
1320 .parse_lease_buf = smb3_parse_lease_buf,
41c1358e 1321 .clone_range = smb2_clone_range,
ff1c038a 1322 .validate_negotiate = smb3_validate_negotiate,
1080ef75
SF		 1323};
1324
dd446b16
SF		 1325struct smb_version_values smb20_values = {
1326 .version_string = SMB20_VERSION_STRING,
1327 .protocol_id = SMB20_PROT_ID,
1328 .req_capabilities = 0, /* MBZ */
1329 .large_lock_type = 0,
1330 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1331 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1332 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1333 .header_size = sizeof(struct smb2_hdr),
1334 .max_header_size = MAX_SMB2_HDR_SIZE,
1335 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1336 .lock_cmd = SMB2_LOCK,
1337 .cap_unix = 0,
1338 .cap_nt_find = SMB2_NT_FIND,
1339 .cap_large_files = SMB2_LARGE_FILES,
50285882
JL		 1340 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1341 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
a41a28bd 1342 .create_lease_size = sizeof(struct create_lease),
dd446b16
SF		 1343};
1344
1080ef75
SF		 1345struct smb_version_values smb21_values = {
1346 .version_string = SMB21_VERSION_STRING,
e4aa25e7
SF		 1347 .protocol_id = SMB21_PROT_ID,
1348 .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */
1349 .large_lock_type = 0,
1350 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1351 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1352 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1353 .header_size = sizeof(struct smb2_hdr),
1354 .max_header_size = MAX_SMB2_HDR_SIZE,
1355 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1356 .lock_cmd = SMB2_LOCK,
1357 .cap_unix = 0,
1358 .cap_nt_find = SMB2_NT_FIND,
1359 .cap_large_files = SMB2_LARGE_FILES,
50285882
JL		 1360 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1361 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
a41a28bd 1362 .create_lease_size = sizeof(struct create_lease),
e4aa25e7
SF		 1363};
1364
1365struct smb_version_values smb30_values = {
1366 .version_string = SMB30_VERSION_STRING,
1367 .protocol_id = SMB30_PROT_ID,
1368 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,
027e8eec
PS		 1369 .large_lock_type = 0,
1370 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1371 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1372 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
093b2bda
PS		 1373 .header_size = sizeof(struct smb2_hdr),
1374 .max_header_size = MAX_SMB2_HDR_SIZE,
09a4707e 1375 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
2dc7e1c0 1376 .lock_cmd = SMB2_LOCK,
29e20f9c
PS		 1377 .cap_unix = 0,
1378 .cap_nt_find = SMB2_NT_FIND,
1379 .cap_large_files = SMB2_LARGE_FILES,
50285882
JL		 1380 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1381 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
f047390a 1382 .create_lease_size = sizeof(struct create_lease_v2),
1080ef75 1383};
20b6d8b4
SF		 1384
1385struct smb_version_values smb302_values = {
1386 .version_string = SMB302_VERSION_STRING,
1387 .protocol_id = SMB302_PROT_ID,
1388 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,
1389 .large_lock_type = 0,
1390 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
1391 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
1392 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
1393 .header_size = sizeof(struct smb2_hdr),
1394 .max_header_size = MAX_SMB2_HDR_SIZE,
1395 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
1396 .lock_cmd = SMB2_LOCK,
1397 .cap_unix = 0,
1398 .cap_nt_find = SMB2_NT_FIND,
1399 .cap_large_files = SMB2_LARGE_FILES,
50285882
JL		 1400 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
1401 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
f047390a 1402 .create_lease_size = sizeof(struct create_lease_v2),
20b6d8b4 1403};
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