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>
23 #include <linux/scatterlist.h>
24 #include <linux/uuid.h>
25 #include <crypto/aead.h>
28 #include "smb2proto.h"
29 #include "cifsproto.h"
30 #include "cifs_debug.h"
31 #include "cifs_unicode.h"
32 #include "smb2status.h"
34 #include "cifs_ioctl.h"
35 #include "smbdirect.h"
37 /* Change credits for different ops and return the total number of credits */
39 change_conf(struct TCP_Server_Info
*server
)
41 server
->credits
+= server
->echo_credits
+ server
->oplock_credits
;
42 server
->oplock_credits
= server
->echo_credits
= 0;
43 switch (server
->credits
) {
47 server
->echoes
= false;
48 server
->oplocks
= false;
51 server
->echoes
= true;
52 server
->oplocks
= false;
53 server
->echo_credits
= 1;
56 server
->echoes
= true;
58 server
->oplocks
= true;
59 server
->oplock_credits
= 1;
61 server
->oplocks
= false;
63 server
->echo_credits
= 1;
65 server
->credits
-= server
->echo_credits
+ server
->oplock_credits
;
66 return server
->credits
+ server
->echo_credits
+ server
->oplock_credits
;
70 smb2_add_credits(struct TCP_Server_Info
*server
,
71 const struct cifs_credits
*credits
, const int optype
)
74 unsigned int add
= credits
->value
;
75 unsigned int instance
= credits
->instance
;
76 bool reconnect_detected
= false;
78 spin_lock(&server
->req_lock
);
79 val
= server
->ops
->get_credits_field(server
, optype
);
81 /* eg found case where write overlapping reconnect messed up credits */
82 if (((optype
& CIFS_OP_MASK
) == CIFS_NEG_OP
) && (*val
!= 0))
83 trace_smb3_reconnect_with_invalid_credits(server
->CurrentMid
,
84 server
->hostname
, *val
);
85 if ((instance
== 0) || (instance
== server
->reconnect_instance
))
88 reconnect_detected
= true;
91 *val
= 65000; /* Don't get near 64K credits, avoid srv bugs */
92 printk_once(KERN_WARNING
"server overflowed SMB3 credits\n");
95 if (server
->in_flight
== 0 && (optype
& CIFS_OP_MASK
) != CIFS_NEG_OP
)
96 rc
= change_conf(server
);
98 * Sometimes server returns 0 credits on oplock break ack - we need to
99 * rebalance credits in this case.
101 else if (server
->in_flight
> 0 && server
->oplock_credits
== 0 &&
103 if (server
->credits
> 1) {
105 server
->oplock_credits
++;
108 spin_unlock(&server
->req_lock
);
109 wake_up(&server
->request_q
);
111 if (reconnect_detected
)
112 cifs_dbg(FYI
, "trying to put %d credits from the old server instance %d\n",
115 if (server
->tcpStatus
== CifsNeedReconnect
116 || server
->tcpStatus
== CifsExiting
)
121 /* change_conf hasn't been executed */
124 cifs_dbg(VFS
, "Possible client or server bug - zero credits\n");
127 cifs_dbg(VFS
, "disabling echoes and oplocks\n");
130 cifs_dbg(FYI
, "disabling oplocks\n");
133 cifs_dbg(FYI
, "add %u credits total=%d\n", add
, rc
);
138 smb2_set_credits(struct TCP_Server_Info
*server
, const int val
)
140 spin_lock(&server
->req_lock
);
141 server
->credits
= val
;
143 server
->reconnect_instance
++;
144 spin_unlock(&server
->req_lock
);
145 /* don't log while holding the lock */
147 cifs_dbg(FYI
, "set credits to 1 due to smb2 reconnect\n");
151 smb2_get_credits_field(struct TCP_Server_Info
*server
, const int optype
)
155 return &server
->echo_credits
;
157 return &server
->oplock_credits
;
159 return &server
->credits
;
164 smb2_get_credits(struct mid_q_entry
*mid
)
166 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)mid
->resp_buf
;
168 if (mid
->mid_state
== MID_RESPONSE_RECEIVED
169 || mid
->mid_state
== MID_RESPONSE_MALFORMED
)
170 return le16_to_cpu(shdr
->CreditRequest
);
176 smb2_wait_mtu_credits(struct TCP_Server_Info
*server
, unsigned int size
,
177 unsigned int *num
, struct cifs_credits
*credits
)
180 unsigned int scredits
;
182 spin_lock(&server
->req_lock
);
184 if (server
->credits
<= 0) {
185 spin_unlock(&server
->req_lock
);
186 cifs_num_waiters_inc(server
);
187 rc
= wait_event_killable(server
->request_q
,
188 has_credits(server
, &server
->credits
, 1));
189 cifs_num_waiters_dec(server
);
192 spin_lock(&server
->req_lock
);
194 if (server
->tcpStatus
== CifsExiting
) {
195 spin_unlock(&server
->req_lock
);
199 scredits
= server
->credits
;
200 /* can deadlock with reopen */
202 *num
= SMB2_MAX_BUFFER_SIZE
;
204 credits
->instance
= 0;
208 /* leave some credits for reopen and other ops */
210 *num
= min_t(unsigned int, size
,
211 scredits
* SMB2_MAX_BUFFER_SIZE
);
214 DIV_ROUND_UP(*num
, SMB2_MAX_BUFFER_SIZE
);
215 credits
->instance
= server
->reconnect_instance
;
216 server
->credits
-= credits
->value
;
221 spin_unlock(&server
->req_lock
);
226 smb2_adjust_credits(struct TCP_Server_Info
*server
,
227 struct cifs_credits
*credits
,
228 const unsigned int payload_size
)
230 int new_val
= DIV_ROUND_UP(payload_size
, SMB2_MAX_BUFFER_SIZE
);
232 if (!credits
->value
|| credits
->value
== new_val
)
235 if (credits
->value
< new_val
) {
236 WARN_ONCE(1, "request has less credits (%d) than required (%d)",
237 credits
->value
, new_val
);
241 spin_lock(&server
->req_lock
);
243 if (server
->reconnect_instance
!= credits
->instance
) {
244 spin_unlock(&server
->req_lock
);
245 cifs_dbg(VFS
, "trying to return %d credits to old session\n",
246 credits
->value
- new_val
);
250 server
->credits
+= credits
->value
- new_val
;
251 spin_unlock(&server
->req_lock
);
252 wake_up(&server
->request_q
);
253 credits
->value
= new_val
;
258 smb2_get_next_mid(struct TCP_Server_Info
*server
)
261 /* for SMB2 we need the current value */
262 spin_lock(&GlobalMid_Lock
);
263 mid
= server
->CurrentMid
++;
264 spin_unlock(&GlobalMid_Lock
);
269 smb2_revert_current_mid(struct TCP_Server_Info
*server
, const unsigned int val
)
271 spin_lock(&GlobalMid_Lock
);
272 if (server
->CurrentMid
>= val
)
273 server
->CurrentMid
-= val
;
274 spin_unlock(&GlobalMid_Lock
);
277 static struct mid_q_entry
*
278 smb2_find_mid(struct TCP_Server_Info
*server
, char *buf
)
280 struct mid_q_entry
*mid
;
281 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)buf
;
282 __u64 wire_mid
= le64_to_cpu(shdr
->MessageId
);
284 if (shdr
->ProtocolId
== SMB2_TRANSFORM_PROTO_NUM
) {
285 cifs_dbg(VFS
, "encrypted frame parsing not supported yet");
289 spin_lock(&GlobalMid_Lock
);
290 list_for_each_entry(mid
, &server
->pending_mid_q
, qhead
) {
291 if ((mid
->mid
== wire_mid
) &&
292 (mid
->mid_state
== MID_REQUEST_SUBMITTED
) &&
293 (mid
->command
== shdr
->Command
)) {
294 kref_get(&mid
->refcount
);
295 spin_unlock(&GlobalMid_Lock
);
299 spin_unlock(&GlobalMid_Lock
);
304 smb2_dump_detail(void *buf
, struct TCP_Server_Info
*server
)
306 #ifdef CONFIG_CIFS_DEBUG2
307 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)buf
;
309 cifs_dbg(VFS
, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
310 shdr
->Command
, shdr
->Status
, shdr
->Flags
, shdr
->MessageId
,
312 cifs_dbg(VFS
, "smb buf %p len %u\n", buf
,
313 server
->ops
->calc_smb_size(buf
, server
));
318 smb2_need_neg(struct TCP_Server_Info
*server
)
320 return server
->max_read
== 0;
324 smb2_negotiate(const unsigned int xid
, struct cifs_ses
*ses
)
327 ses
->server
->CurrentMid
= 0;
328 rc
= SMB2_negotiate(xid
, ses
);
329 /* BB we probably don't need to retry with modern servers */
336 smb2_negotiate_wsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
338 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
341 /* start with specified wsize, or default */
342 wsize
= volume_info
->wsize
? volume_info
->wsize
: CIFS_DEFAULT_IOSIZE
;
343 wsize
= min_t(unsigned int, wsize
, server
->max_write
);
344 #ifdef CONFIG_CIFS_SMB_DIRECT
347 wsize
= min_t(unsigned int,
348 wsize
, server
->smbd_conn
->max_fragmented_send_size
);
350 wsize
= min_t(unsigned int,
351 wsize
, server
->smbd_conn
->max_readwrite_size
);
354 if (!(server
->capabilities
& SMB2_GLOBAL_CAP_LARGE_MTU
))
355 wsize
= min_t(unsigned int, wsize
, SMB2_MAX_BUFFER_SIZE
);
361 smb3_negotiate_wsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
363 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
366 /* start with specified wsize, or default */
367 wsize
= volume_info
->wsize
? volume_info
->wsize
: SMB3_DEFAULT_IOSIZE
;
368 wsize
= min_t(unsigned int, wsize
, server
->max_write
);
369 #ifdef CONFIG_CIFS_SMB_DIRECT
372 wsize
= min_t(unsigned int,
373 wsize
, server
->smbd_conn
->max_fragmented_send_size
);
375 wsize
= min_t(unsigned int,
376 wsize
, server
->smbd_conn
->max_readwrite_size
);
379 if (!(server
->capabilities
& SMB2_GLOBAL_CAP_LARGE_MTU
))
380 wsize
= min_t(unsigned int, wsize
, SMB2_MAX_BUFFER_SIZE
);
386 smb2_negotiate_rsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
388 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
391 /* start with specified rsize, or default */
392 rsize
= volume_info
->rsize
? volume_info
->rsize
: CIFS_DEFAULT_IOSIZE
;
393 rsize
= min_t(unsigned int, rsize
, server
->max_read
);
394 #ifdef CONFIG_CIFS_SMB_DIRECT
397 rsize
= min_t(unsigned int,
398 rsize
, server
->smbd_conn
->max_fragmented_recv_size
);
400 rsize
= min_t(unsigned int,
401 rsize
, server
->smbd_conn
->max_readwrite_size
);
405 if (!(server
->capabilities
& SMB2_GLOBAL_CAP_LARGE_MTU
))
406 rsize
= min_t(unsigned int, rsize
, SMB2_MAX_BUFFER_SIZE
);
412 smb3_negotiate_rsize(struct cifs_tcon
*tcon
, struct smb_vol
*volume_info
)
414 struct TCP_Server_Info
*server
= tcon
->ses
->server
;
417 /* start with specified rsize, or default */
418 rsize
= volume_info
->rsize
? volume_info
->rsize
: SMB3_DEFAULT_IOSIZE
;
419 rsize
= min_t(unsigned int, rsize
, server
->max_read
);
420 #ifdef CONFIG_CIFS_SMB_DIRECT
423 rsize
= min_t(unsigned int,
424 rsize
, server
->smbd_conn
->max_fragmented_recv_size
);
426 rsize
= min_t(unsigned int,
427 rsize
, server
->smbd_conn
->max_readwrite_size
);
431 if (!(server
->capabilities
& SMB2_GLOBAL_CAP_LARGE_MTU
))
432 rsize
= min_t(unsigned int, rsize
, SMB2_MAX_BUFFER_SIZE
);
438 parse_server_interfaces(struct network_interface_info_ioctl_rsp
*buf
,
440 struct cifs_server_iface
**iface_list
,
443 struct network_interface_info_ioctl_rsp
*p
;
444 struct sockaddr_in
*addr4
;
445 struct sockaddr_in6
*addr6
;
446 struct iface_info_ipv4
*p4
;
447 struct iface_info_ipv6
*p6
;
448 struct cifs_server_iface
*info
;
458 * Fist pass: count and sanity check
461 bytes_left
= buf_len
;
463 while (bytes_left
>= sizeof(*p
)) {
465 next
= le32_to_cpu(p
->Next
);
467 bytes_left
-= sizeof(*p
);
470 p
= (struct network_interface_info_ioctl_rsp
*)((u8
*)p
+next
);
475 cifs_dbg(VFS
, "%s: malformed interface info\n", __func__
);
480 if (bytes_left
|| p
->Next
)
481 cifs_dbg(VFS
, "%s: incomplete interface info\n", __func__
);
485 * Second pass: extract info to internal structure
488 *iface_list
= kcalloc(nb_iface
, sizeof(**iface_list
), GFP_KERNEL
);
495 bytes_left
= buf_len
;
497 while (bytes_left
>= sizeof(*p
)) {
498 info
->speed
= le64_to_cpu(p
->LinkSpeed
);
499 info
->rdma_capable
= le32_to_cpu(p
->Capability
& RDMA_CAPABLE
);
500 info
->rss_capable
= le32_to_cpu(p
->Capability
& RSS_CAPABLE
);
502 cifs_dbg(FYI
, "%s: adding iface %zu\n", __func__
, *iface_count
);
503 cifs_dbg(FYI
, "%s: speed %zu bps\n", __func__
, info
->speed
);
504 cifs_dbg(FYI
, "%s: capabilities 0x%08x\n", __func__
,
505 le32_to_cpu(p
->Capability
));
509 * The kernel and wire socket structures have the same
510 * layout and use network byte order but make the
511 * conversion explicit in case either one changes.
514 addr4
= (struct sockaddr_in
*)&info
->sockaddr
;
515 p4
= (struct iface_info_ipv4
*)p
->Buffer
;
516 addr4
->sin_family
= AF_INET
;
517 memcpy(&addr4
->sin_addr
, &p4
->IPv4Address
, 4);
519 /* [MS-SMB2] 2.2.32.5.1.1 Clients MUST ignore these */
520 addr4
->sin_port
= cpu_to_be16(CIFS_PORT
);
522 cifs_dbg(FYI
, "%s: ipv4 %pI4\n", __func__
,
526 addr6
= (struct sockaddr_in6
*)&info
->sockaddr
;
527 p6
= (struct iface_info_ipv6
*)p
->Buffer
;
528 addr6
->sin6_family
= AF_INET6
;
529 memcpy(&addr6
->sin6_addr
, &p6
->IPv6Address
, 16);
531 /* [MS-SMB2] 2.2.32.5.1.2 Clients MUST ignore these */
532 addr6
->sin6_flowinfo
= 0;
533 addr6
->sin6_scope_id
= 0;
534 addr6
->sin6_port
= cpu_to_be16(CIFS_PORT
);
536 cifs_dbg(FYI
, "%s: ipv6 %pI6\n", __func__
,
541 "%s: skipping unsupported socket family\n",
549 next
= le32_to_cpu(p
->Next
);
552 p
= (struct network_interface_info_ioctl_rsp
*)((u8
*)p
+next
);
572 SMB3_request_interfaces(const unsigned int xid
, struct cifs_tcon
*tcon
)
575 unsigned int ret_data_len
= 0;
576 struct network_interface_info_ioctl_rsp
*out_buf
= NULL
;
577 struct cifs_server_iface
*iface_list
;
579 struct cifs_ses
*ses
= tcon
->ses
;
581 rc
= SMB2_ioctl(xid
, tcon
, NO_FILE_ID
, NO_FILE_ID
,
582 FSCTL_QUERY_NETWORK_INTERFACE_INFO
, true /* is_fsctl */,
583 NULL
/* no data input */, 0 /* no data input */,
584 CIFSMaxBufSize
, (char **)&out_buf
, &ret_data_len
);
585 if (rc
== -EOPNOTSUPP
) {
587 "server does not support query network interfaces\n");
589 } else if (rc
!= 0) {
590 cifs_dbg(VFS
, "error %d on ioctl to get interface list\n", rc
);
594 rc
= parse_server_interfaces(out_buf
, ret_data_len
,
595 &iface_list
, &iface_count
);
599 spin_lock(&ses
->iface_lock
);
600 kfree(ses
->iface_list
);
601 ses
->iface_list
= iface_list
;
602 ses
->iface_count
= iface_count
;
603 ses
->iface_last_update
= jiffies
;
604 spin_unlock(&ses
->iface_lock
);
612 smb2_close_cached_fid(struct kref
*ref
)
614 struct cached_fid
*cfid
= container_of(ref
, struct cached_fid
,
617 if (cfid
->is_valid
) {
618 cifs_dbg(FYI
, "clear cached root file handle\n");
619 SMB2_close(0, cfid
->tcon
, cfid
->fid
->persistent_fid
,
620 cfid
->fid
->volatile_fid
);
621 cfid
->is_valid
= false;
622 cfid
->file_all_info_is_valid
= false;
626 void close_shroot(struct cached_fid
*cfid
)
628 mutex_lock(&cfid
->fid_mutex
);
629 kref_put(&cfid
->refcount
, smb2_close_cached_fid
);
630 mutex_unlock(&cfid
->fid_mutex
);
634 smb2_cached_lease_break(struct work_struct
*work
)
636 struct cached_fid
*cfid
= container_of(work
,
637 struct cached_fid
, lease_break
);
643 * Open the directory at the root of a share
645 int open_shroot(unsigned int xid
, struct cifs_tcon
*tcon
, struct cifs_fid
*pfid
)
647 struct cifs_ses
*ses
= tcon
->ses
;
648 struct TCP_Server_Info
*server
= ses
->server
;
649 struct cifs_open_parms oparms
;
650 struct smb2_create_rsp
*o_rsp
= NULL
;
651 struct smb2_query_info_rsp
*qi_rsp
= NULL
;
653 struct smb_rqst rqst
[2];
654 struct kvec rsp_iov
[2];
655 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
656 struct kvec qi_iov
[1];
658 __le16 utf16_path
= 0; /* Null - since an open of top of share */
659 u8 oplock
= SMB2_OPLOCK_LEVEL_II
;
661 mutex_lock(&tcon
->crfid
.fid_mutex
);
662 if (tcon
->crfid
.is_valid
) {
663 cifs_dbg(FYI
, "found a cached root file handle\n");
664 memcpy(pfid
, tcon
->crfid
.fid
, sizeof(struct cifs_fid
));
665 kref_get(&tcon
->crfid
.refcount
);
666 mutex_unlock(&tcon
->crfid
.fid_mutex
);
670 if (smb3_encryption_required(tcon
))
671 flags
|= CIFS_TRANSFORM_REQ
;
673 memset(rqst
, 0, sizeof(rqst
));
674 resp_buftype
[0] = resp_buftype
[1] = CIFS_NO_BUFFER
;
675 memset(rsp_iov
, 0, sizeof(rsp_iov
));
678 memset(&open_iov
, 0, sizeof(open_iov
));
679 rqst
[0].rq_iov
= open_iov
;
680 rqst
[0].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
683 oparms
.create_options
= 0;
684 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
685 oparms
.disposition
= FILE_OPEN
;
687 oparms
.reconnect
= false;
689 rc
= SMB2_open_init(tcon
, &rqst
[0], &oplock
, &oparms
, &utf16_path
);
692 smb2_set_next_command(tcon
, &rqst
[0]);
694 memset(&qi_iov
, 0, sizeof(qi_iov
));
695 rqst
[1].rq_iov
= qi_iov
;
698 rc
= SMB2_query_info_init(tcon
, &rqst
[1], COMPOUND_FID
,
699 COMPOUND_FID
, FILE_ALL_INFORMATION
,
701 sizeof(struct smb2_file_all_info
) +
702 PATH_MAX
* 2, 0, NULL
);
706 smb2_set_related(&rqst
[1]);
708 rc
= compound_send_recv(xid
, ses
, flags
, 2, rqst
,
709 resp_buftype
, rsp_iov
);
713 o_rsp
= (struct smb2_create_rsp
*)rsp_iov
[0].iov_base
;
714 oparms
.fid
->persistent_fid
= o_rsp
->PersistentFileId
;
715 oparms
.fid
->volatile_fid
= o_rsp
->VolatileFileId
;
716 #ifdef CONFIG_CIFS_DEBUG2
717 oparms
.fid
->mid
= le64_to_cpu(o_rsp
->sync_hdr
.MessageId
);
718 #endif /* CIFS_DEBUG2 */
720 memcpy(tcon
->crfid
.fid
, pfid
, sizeof(struct cifs_fid
));
721 tcon
->crfid
.tcon
= tcon
;
722 tcon
->crfid
.is_valid
= true;
723 kref_init(&tcon
->crfid
.refcount
);
725 if (o_rsp
->OplockLevel
== SMB2_OPLOCK_LEVEL_LEASE
) {
726 kref_get(&tcon
->crfid
.refcount
);
727 oplock
= smb2_parse_lease_state(server
, o_rsp
,
729 oparms
.fid
->lease_key
);
733 qi_rsp
= (struct smb2_query_info_rsp
*)rsp_iov
[1].iov_base
;
734 if (le32_to_cpu(qi_rsp
->OutputBufferLength
) < sizeof(struct smb2_file_all_info
))
736 if (!smb2_validate_and_copy_iov(
737 le16_to_cpu(qi_rsp
->OutputBufferOffset
),
738 sizeof(struct smb2_file_all_info
),
739 &rsp_iov
[1], sizeof(struct smb2_file_all_info
),
740 (char *)&tcon
->crfid
.file_all_info
))
741 tcon
->crfid
.file_all_info_is_valid
= 1;
744 mutex_unlock(&tcon
->crfid
.fid_mutex
);
745 SMB2_open_free(&rqst
[0]);
746 SMB2_query_info_free(&rqst
[1]);
747 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
748 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
753 smb3_qfs_tcon(const unsigned int xid
, struct cifs_tcon
*tcon
)
756 __le16 srch_path
= 0; /* Null - open root of share */
757 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
758 struct cifs_open_parms oparms
;
760 bool no_cached_open
= tcon
->nohandlecache
;
763 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
764 oparms
.disposition
= FILE_OPEN
;
765 oparms
.create_options
= 0;
767 oparms
.reconnect
= false;
770 rc
= SMB2_open(xid
, &oparms
, &srch_path
, &oplock
, NULL
, NULL
,
773 rc
= open_shroot(xid
, tcon
, &fid
);
778 SMB3_request_interfaces(xid
, tcon
);
780 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
781 FS_ATTRIBUTE_INFORMATION
);
782 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
783 FS_DEVICE_INFORMATION
);
784 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
785 FS_VOLUME_INFORMATION
);
786 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
787 FS_SECTOR_SIZE_INFORMATION
); /* SMB3 specific */
789 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
791 close_shroot(&tcon
->crfid
);
797 smb2_qfs_tcon(const unsigned int xid
, struct cifs_tcon
*tcon
)
800 __le16 srch_path
= 0; /* Null - open root of share */
801 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
802 struct cifs_open_parms oparms
;
806 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
807 oparms
.disposition
= FILE_OPEN
;
808 oparms
.create_options
= 0;
810 oparms
.reconnect
= false;
812 rc
= SMB2_open(xid
, &oparms
, &srch_path
, &oplock
, NULL
, NULL
, NULL
);
816 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
817 FS_ATTRIBUTE_INFORMATION
);
818 SMB2_QFS_attr(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
,
819 FS_DEVICE_INFORMATION
);
820 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
825 smb2_is_path_accessible(const unsigned int xid
, struct cifs_tcon
*tcon
,
826 struct cifs_sb_info
*cifs_sb
, const char *full_path
)
830 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
831 struct cifs_open_parms oparms
;
834 if ((*full_path
== 0) && tcon
->crfid
.is_valid
)
837 utf16_path
= cifs_convert_path_to_utf16(full_path
, cifs_sb
);
842 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
843 oparms
.disposition
= FILE_OPEN
;
844 if (backup_cred(cifs_sb
))
845 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
847 oparms
.create_options
= 0;
849 oparms
.reconnect
= false;
851 rc
= SMB2_open(xid
, &oparms
, utf16_path
, &oplock
, NULL
, NULL
, NULL
);
857 rc
= SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
863 smb2_get_srv_inum(const unsigned int xid
, struct cifs_tcon
*tcon
,
864 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
865 u64
*uniqueid
, FILE_ALL_INFO
*data
)
867 *uniqueid
= le64_to_cpu(data
->IndexNumber
);
872 smb2_query_file_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
873 struct cifs_fid
*fid
, FILE_ALL_INFO
*data
)
876 struct smb2_file_all_info
*smb2_data
;
878 smb2_data
= kzalloc(sizeof(struct smb2_file_all_info
) + PATH_MAX
* 2,
880 if (smb2_data
== NULL
)
883 rc
= SMB2_query_info(xid
, tcon
, fid
->persistent_fid
, fid
->volatile_fid
,
886 move_smb2_info_to_cifs(data
, smb2_data
);
891 #ifdef CONFIG_CIFS_XATTR
893 move_smb2_ea_to_cifs(char *dst
, size_t dst_size
,
894 struct smb2_file_full_ea_info
*src
, size_t src_size
,
895 const unsigned char *ea_name
)
898 unsigned int ea_name_len
= ea_name
? strlen(ea_name
) : 0;
900 size_t buf_size
= dst_size
;
901 size_t name_len
, value_len
, user_name_len
;
903 while (src_size
> 0) {
904 name
= &src
->ea_data
[0];
905 name_len
= (size_t)src
->ea_name_length
;
906 value
= &src
->ea_data
[src
->ea_name_length
+ 1];
907 value_len
= (size_t)le16_to_cpu(src
->ea_value_length
);
913 if (src_size
< 8 + name_len
+ 1 + value_len
) {
914 cifs_dbg(FYI
, "EA entry goes beyond length of list\n");
920 if (ea_name_len
== name_len
&&
921 memcmp(ea_name
, name
, name_len
) == 0) {
925 if (dst_size
< value_len
) {
929 memcpy(dst
, value
, value_len
);
933 /* 'user.' plus a terminating null */
934 user_name_len
= 5 + 1 + name_len
;
937 /* skip copy - calc size only */
939 } else if (dst_size
>= user_name_len
) {
940 dst_size
-= user_name_len
;
941 memcpy(dst
, "user.", 5);
943 memcpy(dst
, src
->ea_data
, name_len
);
949 /* stop before overrun buffer */
955 if (!src
->next_entry_offset
)
958 if (src_size
< le32_to_cpu(src
->next_entry_offset
)) {
959 /* stop before overrun buffer */
963 src_size
-= le32_to_cpu(src
->next_entry_offset
);
964 src
= (void *)((char *)src
+
965 le32_to_cpu(src
->next_entry_offset
));
968 /* didn't find the named attribute */
977 smb2_query_eas(const unsigned int xid
, struct cifs_tcon
*tcon
,
978 const unsigned char *path
, const unsigned char *ea_name
,
979 char *ea_data
, size_t buf_size
,
980 struct cifs_sb_info
*cifs_sb
)
984 struct kvec rsp_iov
= {NULL
, 0};
985 int buftype
= CIFS_NO_BUFFER
;
986 struct smb2_query_info_rsp
*rsp
;
987 struct smb2_file_full_ea_info
*info
= NULL
;
989 utf16_path
= cifs_convert_path_to_utf16(path
, cifs_sb
);
993 rc
= smb2_query_info_compound(xid
, tcon
, utf16_path
,
995 FILE_FULL_EA_INFORMATION
,
998 MAX_SMB2_CREATE_RESPONSE_SIZE
-
999 MAX_SMB2_CLOSE_RESPONSE_SIZE
,
1000 &rsp_iov
, &buftype
, cifs_sb
);
1003 * If ea_name is NULL (listxattr) and there are no EAs,
1004 * return 0 as it's not an error. Otherwise, the specified
1005 * ea_name was not found.
1007 if (!ea_name
&& rc
== -ENODATA
)
1012 rsp
= (struct smb2_query_info_rsp
*)rsp_iov
.iov_base
;
1013 rc
= smb2_validate_iov(le16_to_cpu(rsp
->OutputBufferOffset
),
1014 le32_to_cpu(rsp
->OutputBufferLength
),
1016 sizeof(struct smb2_file_full_ea_info
));
1020 info
= (struct smb2_file_full_ea_info
*)(
1021 le16_to_cpu(rsp
->OutputBufferOffset
) + (char *)rsp
);
1022 rc
= move_smb2_ea_to_cifs(ea_data
, buf_size
, info
,
1023 le32_to_cpu(rsp
->OutputBufferLength
), ea_name
);
1027 free_rsp_buf(buftype
, rsp_iov
.iov_base
);
1033 smb2_set_ea(const unsigned int xid
, struct cifs_tcon
*tcon
,
1034 const char *path
, const char *ea_name
, const void *ea_value
,
1035 const __u16 ea_value_len
, const struct nls_table
*nls_codepage
,
1036 struct cifs_sb_info
*cifs_sb
)
1038 struct cifs_ses
*ses
= tcon
->ses
;
1039 __le16
*utf16_path
= NULL
;
1040 int ea_name_len
= strlen(ea_name
);
1043 struct smb_rqst rqst
[3];
1044 int resp_buftype
[3];
1045 struct kvec rsp_iov
[3];
1046 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
1047 struct cifs_open_parms oparms
;
1048 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
1049 struct cifs_fid fid
;
1050 struct kvec si_iov
[SMB2_SET_INFO_IOV_SIZE
];
1051 unsigned int size
[1];
1053 struct smb2_file_full_ea_info
*ea
= NULL
;
1054 struct kvec close_iov
[1];
1057 if (smb3_encryption_required(tcon
))
1058 flags
|= CIFS_TRANSFORM_REQ
;
1060 if (ea_name_len
> 255)
1063 utf16_path
= cifs_convert_path_to_utf16(path
, cifs_sb
);
1067 memset(rqst
, 0, sizeof(rqst
));
1068 resp_buftype
[0] = resp_buftype
[1] = resp_buftype
[2] = CIFS_NO_BUFFER
;
1069 memset(rsp_iov
, 0, sizeof(rsp_iov
));
1071 if (ses
->server
->ops
->query_all_EAs
) {
1073 rc
= ses
->server
->ops
->query_all_EAs(xid
, tcon
, path
,
1082 memset(&open_iov
, 0, sizeof(open_iov
));
1083 rqst
[0].rq_iov
= open_iov
;
1084 rqst
[0].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
1086 memset(&oparms
, 0, sizeof(oparms
));
1088 oparms
.desired_access
= FILE_WRITE_EA
;
1089 oparms
.disposition
= FILE_OPEN
;
1090 if (backup_cred(cifs_sb
))
1091 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
1093 oparms
.create_options
= 0;
1095 oparms
.reconnect
= false;
1097 rc
= SMB2_open_init(tcon
, &rqst
[0], &oplock
, &oparms
, utf16_path
);
1100 smb2_set_next_command(tcon
, &rqst
[0]);
1104 memset(&si_iov
, 0, sizeof(si_iov
));
1105 rqst
[1].rq_iov
= si_iov
;
1106 rqst
[1].rq_nvec
= 1;
1108 len
= sizeof(ea
) + ea_name_len
+ ea_value_len
+ 1;
1109 ea
= kzalloc(len
, GFP_KERNEL
);
1115 ea
->ea_name_length
= ea_name_len
;
1116 ea
->ea_value_length
= cpu_to_le16(ea_value_len
);
1117 memcpy(ea
->ea_data
, ea_name
, ea_name_len
+ 1);
1118 memcpy(ea
->ea_data
+ ea_name_len
+ 1, ea_value
, ea_value_len
);
1123 rc
= SMB2_set_info_init(tcon
, &rqst
[1], COMPOUND_FID
,
1124 COMPOUND_FID
, current
->tgid
,
1125 FILE_FULL_EA_INFORMATION
,
1126 SMB2_O_INFO_FILE
, 0, data
, size
);
1127 smb2_set_next_command(tcon
, &rqst
[1]);
1128 smb2_set_related(&rqst
[1]);
1132 memset(&close_iov
, 0, sizeof(close_iov
));
1133 rqst
[2].rq_iov
= close_iov
;
1134 rqst
[2].rq_nvec
= 1;
1135 rc
= SMB2_close_init(tcon
, &rqst
[2], COMPOUND_FID
, COMPOUND_FID
);
1136 smb2_set_related(&rqst
[2]);
1138 rc
= compound_send_recv(xid
, ses
, flags
, 3, rqst
,
1139 resp_buftype
, rsp_iov
);
1144 SMB2_open_free(&rqst
[0]);
1145 SMB2_set_info_free(&rqst
[1]);
1146 SMB2_close_free(&rqst
[2]);
1147 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
1148 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
1149 free_rsp_buf(resp_buftype
[2], rsp_iov
[2].iov_base
);
1155 smb2_can_echo(struct TCP_Server_Info
*server
)
1157 return server
->echoes
;
1161 smb2_clear_stats(struct cifs_tcon
*tcon
)
1164 for (i
= 0; i
< NUMBER_OF_SMB2_COMMANDS
; i
++) {
1165 atomic_set(&tcon
->stats
.smb2_stats
.smb2_com_sent
[i
], 0);
1166 atomic_set(&tcon
->stats
.smb2_stats
.smb2_com_failed
[i
], 0);
1171 smb2_dump_share_caps(struct seq_file
*m
, struct cifs_tcon
*tcon
)
1173 seq_puts(m
, "\n\tShare Capabilities:");
1174 if (tcon
->capabilities
& SMB2_SHARE_CAP_DFS
)
1175 seq_puts(m
, " DFS,");
1176 if (tcon
->capabilities
& SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY
)
1177 seq_puts(m
, " CONTINUOUS AVAILABILITY,");
1178 if (tcon
->capabilities
& SMB2_SHARE_CAP_SCALEOUT
)
1179 seq_puts(m
, " SCALEOUT,");
1180 if (tcon
->capabilities
& SMB2_SHARE_CAP_CLUSTER
)
1181 seq_puts(m
, " CLUSTER,");
1182 if (tcon
->capabilities
& SMB2_SHARE_CAP_ASYMMETRIC
)
1183 seq_puts(m
, " ASYMMETRIC,");
1184 if (tcon
->capabilities
== 0)
1185 seq_puts(m
, " None");
1186 if (tcon
->ss_flags
& SSINFO_FLAGS_ALIGNED_DEVICE
)
1187 seq_puts(m
, " Aligned,");
1188 if (tcon
->ss_flags
& SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE
)
1189 seq_puts(m
, " Partition Aligned,");
1190 if (tcon
->ss_flags
& SSINFO_FLAGS_NO_SEEK_PENALTY
)
1191 seq_puts(m
, " SSD,");
1192 if (tcon
->ss_flags
& SSINFO_FLAGS_TRIM_ENABLED
)
1193 seq_puts(m
, " TRIM-support,");
1195 seq_printf(m
, "\tShare Flags: 0x%x", tcon
->share_flags
);
1196 seq_printf(m
, "\n\ttid: 0x%x", tcon
->tid
);
1197 if (tcon
->perf_sector_size
)
1198 seq_printf(m
, "\tOptimal sector size: 0x%x",
1199 tcon
->perf_sector_size
);
1200 seq_printf(m
, "\tMaximal Access: 0x%x", tcon
->maximal_access
);
1204 smb2_print_stats(struct seq_file
*m
, struct cifs_tcon
*tcon
)
1206 atomic_t
*sent
= tcon
->stats
.smb2_stats
.smb2_com_sent
;
1207 atomic_t
*failed
= tcon
->stats
.smb2_stats
.smb2_com_failed
;
1210 * Can't display SMB2_NEGOTIATE, SESSION_SETUP, LOGOFF, CANCEL and ECHO
1211 * totals (requests sent) since those SMBs are per-session not per tcon
1213 seq_printf(m
, "\nBytes read: %llu Bytes written: %llu",
1214 (long long)(tcon
->bytes_read
),
1215 (long long)(tcon
->bytes_written
));
1216 seq_printf(m
, "\nOpen files: %d total (local), %d open on server",
1217 atomic_read(&tcon
->num_local_opens
),
1218 atomic_read(&tcon
->num_remote_opens
));
1219 seq_printf(m
, "\nTreeConnects: %d total %d failed",
1220 atomic_read(&sent
[SMB2_TREE_CONNECT_HE
]),
1221 atomic_read(&failed
[SMB2_TREE_CONNECT_HE
]));
1222 seq_printf(m
, "\nTreeDisconnects: %d total %d failed",
1223 atomic_read(&sent
[SMB2_TREE_DISCONNECT_HE
]),
1224 atomic_read(&failed
[SMB2_TREE_DISCONNECT_HE
]));
1225 seq_printf(m
, "\nCreates: %d total %d failed",
1226 atomic_read(&sent
[SMB2_CREATE_HE
]),
1227 atomic_read(&failed
[SMB2_CREATE_HE
]));
1228 seq_printf(m
, "\nCloses: %d total %d failed",
1229 atomic_read(&sent
[SMB2_CLOSE_HE
]),
1230 atomic_read(&failed
[SMB2_CLOSE_HE
]));
1231 seq_printf(m
, "\nFlushes: %d total %d failed",
1232 atomic_read(&sent
[SMB2_FLUSH_HE
]),
1233 atomic_read(&failed
[SMB2_FLUSH_HE
]));
1234 seq_printf(m
, "\nReads: %d total %d failed",
1235 atomic_read(&sent
[SMB2_READ_HE
]),
1236 atomic_read(&failed
[SMB2_READ_HE
]));
1237 seq_printf(m
, "\nWrites: %d total %d failed",
1238 atomic_read(&sent
[SMB2_WRITE_HE
]),
1239 atomic_read(&failed
[SMB2_WRITE_HE
]));
1240 seq_printf(m
, "\nLocks: %d total %d failed",
1241 atomic_read(&sent
[SMB2_LOCK_HE
]),
1242 atomic_read(&failed
[SMB2_LOCK_HE
]));
1243 seq_printf(m
, "\nIOCTLs: %d total %d failed",
1244 atomic_read(&sent
[SMB2_IOCTL_HE
]),
1245 atomic_read(&failed
[SMB2_IOCTL_HE
]));
1246 seq_printf(m
, "\nQueryDirectories: %d total %d failed",
1247 atomic_read(&sent
[SMB2_QUERY_DIRECTORY_HE
]),
1248 atomic_read(&failed
[SMB2_QUERY_DIRECTORY_HE
]));
1249 seq_printf(m
, "\nChangeNotifies: %d total %d failed",
1250 atomic_read(&sent
[SMB2_CHANGE_NOTIFY_HE
]),
1251 atomic_read(&failed
[SMB2_CHANGE_NOTIFY_HE
]));
1252 seq_printf(m
, "\nQueryInfos: %d total %d failed",
1253 atomic_read(&sent
[SMB2_QUERY_INFO_HE
]),
1254 atomic_read(&failed
[SMB2_QUERY_INFO_HE
]));
1255 seq_printf(m
, "\nSetInfos: %d total %d failed",
1256 atomic_read(&sent
[SMB2_SET_INFO_HE
]),
1257 atomic_read(&failed
[SMB2_SET_INFO_HE
]));
1258 seq_printf(m
, "\nOplockBreaks: %d sent %d failed",
1259 atomic_read(&sent
[SMB2_OPLOCK_BREAK_HE
]),
1260 atomic_read(&failed
[SMB2_OPLOCK_BREAK_HE
]));
1264 smb2_set_fid(struct cifsFileInfo
*cfile
, struct cifs_fid
*fid
, __u32 oplock
)
1266 struct cifsInodeInfo
*cinode
= CIFS_I(d_inode(cfile
->dentry
));
1267 struct TCP_Server_Info
*server
= tlink_tcon(cfile
->tlink
)->ses
->server
;
1269 cfile
->fid
.persistent_fid
= fid
->persistent_fid
;
1270 cfile
->fid
.volatile_fid
= fid
->volatile_fid
;
1271 #ifdef CONFIG_CIFS_DEBUG2
1272 cfile
->fid
.mid
= fid
->mid
;
1273 #endif /* CIFS_DEBUG2 */
1274 server
->ops
->set_oplock_level(cinode
, oplock
, fid
->epoch
,
1276 cinode
->can_cache_brlcks
= CIFS_CACHE_WRITE(cinode
);
1277 memcpy(cfile
->fid
.create_guid
, fid
->create_guid
, 16);
1281 smb2_close_file(const unsigned int xid
, struct cifs_tcon
*tcon
,
1282 struct cifs_fid
*fid
)
1284 SMB2_close(xid
, tcon
, fid
->persistent_fid
, fid
->volatile_fid
);
1288 SMB2_request_res_key(const unsigned int xid
, struct cifs_tcon
*tcon
,
1289 u64 persistent_fid
, u64 volatile_fid
,
1290 struct copychunk_ioctl
*pcchunk
)
1293 unsigned int ret_data_len
;
1294 struct resume_key_req
*res_key
;
1296 rc
= SMB2_ioctl(xid
, tcon
, persistent_fid
, volatile_fid
,
1297 FSCTL_SRV_REQUEST_RESUME_KEY
, true /* is_fsctl */,
1298 NULL
, 0 /* no input */, CIFSMaxBufSize
,
1299 (char **)&res_key
, &ret_data_len
);
1302 cifs_dbg(VFS
, "refcpy ioctl error %d getting resume key\n", rc
);
1303 goto req_res_key_exit
;
1305 if (ret_data_len
< sizeof(struct resume_key_req
)) {
1306 cifs_dbg(VFS
, "Invalid refcopy resume key length\n");
1308 goto req_res_key_exit
;
1310 memcpy(pcchunk
->SourceKey
, res_key
->ResumeKey
, COPY_CHUNK_RES_KEY_SIZE
);
1318 smb2_ioctl_query_info(const unsigned int xid
,
1319 struct cifs_tcon
*tcon
,
1320 __le16
*path
, int is_dir
,
1323 struct cifs_ses
*ses
= tcon
->ses
;
1324 char __user
*arg
= (char __user
*)p
;
1325 struct smb_query_info qi
;
1326 struct smb_query_info __user
*pqi
;
1329 struct smb2_query_info_rsp
*qi_rsp
= NULL
;
1330 struct smb2_ioctl_rsp
*io_rsp
= NULL
;
1331 void *buffer
= NULL
;
1332 struct smb_rqst rqst
[3];
1333 int resp_buftype
[3];
1334 struct kvec rsp_iov
[3];
1335 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
1336 struct cifs_open_parms oparms
;
1337 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
1338 struct cifs_fid fid
;
1339 struct kvec qi_iov
[1];
1340 struct kvec io_iov
[SMB2_IOCTL_IOV_SIZE
];
1341 struct kvec close_iov
[1];
1343 memset(rqst
, 0, sizeof(rqst
));
1344 resp_buftype
[0] = resp_buftype
[1] = resp_buftype
[2] = CIFS_NO_BUFFER
;
1345 memset(rsp_iov
, 0, sizeof(rsp_iov
));
1347 if (copy_from_user(&qi
, arg
, sizeof(struct smb_query_info
)))
1350 if (qi
.output_buffer_length
> 1024)
1353 if (!ses
|| !(ses
->server
))
1356 if (smb3_encryption_required(tcon
))
1357 flags
|= CIFS_TRANSFORM_REQ
;
1359 buffer
= kmalloc(qi
.output_buffer_length
, GFP_KERNEL
);
1363 if (copy_from_user(buffer
, arg
+ sizeof(struct smb_query_info
),
1364 qi
.output_buffer_length
)) {
1370 memset(&open_iov
, 0, sizeof(open_iov
));
1371 rqst
[0].rq_iov
= open_iov
;
1372 rqst
[0].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
1374 memset(&oparms
, 0, sizeof(oparms
));
1376 oparms
.desired_access
= FILE_READ_ATTRIBUTES
| READ_CONTROL
;
1377 oparms
.disposition
= FILE_OPEN
;
1379 oparms
.create_options
= CREATE_NOT_FILE
;
1381 oparms
.create_options
= CREATE_NOT_DIR
;
1383 oparms
.reconnect
= false;
1385 rc
= SMB2_open_init(tcon
, &rqst
[0], &oplock
, &oparms
, path
);
1388 smb2_set_next_command(tcon
, &rqst
[0]);
1391 if (qi
.flags
& PASSTHRU_FSCTL
) {
1392 /* Can eventually relax perm check since server enforces too */
1393 if (!capable(CAP_SYS_ADMIN
))
1396 memset(&io_iov
, 0, sizeof(io_iov
));
1397 rqst
[1].rq_iov
= io_iov
;
1398 rqst
[1].rq_nvec
= SMB2_IOCTL_IOV_SIZE
;
1400 rc
= SMB2_ioctl_init(tcon
, &rqst
[1],
1401 COMPOUND_FID
, COMPOUND_FID
,
1402 qi
.info_type
, true, NULL
,
1405 } else if (qi
.flags
== PASSTHRU_QUERY_INFO
) {
1406 memset(&qi_iov
, 0, sizeof(qi_iov
));
1407 rqst
[1].rq_iov
= qi_iov
;
1408 rqst
[1].rq_nvec
= 1;
1410 rc
= SMB2_query_info_init(tcon
, &rqst
[1], COMPOUND_FID
,
1411 COMPOUND_FID
, qi
.file_info_class
,
1412 qi
.info_type
, qi
.additional_information
,
1413 qi
.input_buffer_length
,
1414 qi
.output_buffer_length
, buffer
);
1415 } else { /* unknown flags */
1416 cifs_dbg(VFS
, "invalid passthru query flags: 0x%x\n", qi
.flags
);
1422 smb2_set_next_command(tcon
, &rqst
[1]);
1423 smb2_set_related(&rqst
[1]);
1426 memset(&close_iov
, 0, sizeof(close_iov
));
1427 rqst
[2].rq_iov
= close_iov
;
1428 rqst
[2].rq_nvec
= 1;
1430 rc
= SMB2_close_init(tcon
, &rqst
[2], COMPOUND_FID
, COMPOUND_FID
);
1433 smb2_set_related(&rqst
[2]);
1435 rc
= compound_send_recv(xid
, ses
, flags
, 3, rqst
,
1436 resp_buftype
, rsp_iov
);
1439 if (qi
.flags
& PASSTHRU_FSCTL
) {
1440 pqi
= (struct smb_query_info __user
*)arg
;
1441 io_rsp
= (struct smb2_ioctl_rsp
*)rsp_iov
[1].iov_base
;
1442 if (le32_to_cpu(io_rsp
->OutputCount
) < qi
.input_buffer_length
)
1443 qi
.input_buffer_length
= le32_to_cpu(io_rsp
->OutputCount
);
1444 if (copy_to_user(&pqi
->input_buffer_length
, &qi
.input_buffer_length
,
1445 sizeof(qi
.input_buffer_length
))) {
1449 if (copy_to_user(pqi
+ 1, &io_rsp
[1], qi
.input_buffer_length
)) {
1454 pqi
= (struct smb_query_info __user
*)arg
;
1455 qi_rsp
= (struct smb2_query_info_rsp
*)rsp_iov
[1].iov_base
;
1456 if (le32_to_cpu(qi_rsp
->OutputBufferLength
) < qi
.input_buffer_length
)
1457 qi
.input_buffer_length
= le32_to_cpu(qi_rsp
->OutputBufferLength
);
1458 if (copy_to_user(&pqi
->input_buffer_length
, &qi
.input_buffer_length
,
1459 sizeof(qi
.input_buffer_length
))) {
1463 if (copy_to_user(pqi
+ 1, qi_rsp
->Buffer
, qi
.input_buffer_length
)) {
1471 SMB2_open_free(&rqst
[0]);
1472 if (qi
.flags
& PASSTHRU_FSCTL
)
1473 SMB2_ioctl_free(&rqst
[1]);
1475 SMB2_query_info_free(&rqst
[1]);
1477 SMB2_close_free(&rqst
[2]);
1478 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
1479 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
1480 free_rsp_buf(resp_buftype
[2], rsp_iov
[2].iov_base
);
1485 smb2_copychunk_range(const unsigned int xid
,
1486 struct cifsFileInfo
*srcfile
,
1487 struct cifsFileInfo
*trgtfile
, u64 src_off
,
1488 u64 len
, u64 dest_off
)
1491 unsigned int ret_data_len
;
1492 struct copychunk_ioctl
*pcchunk
;
1493 struct copychunk_ioctl_rsp
*retbuf
= NULL
;
1494 struct cifs_tcon
*tcon
;
1495 int chunks_copied
= 0;
1496 bool chunk_sizes_updated
= false;
1497 ssize_t bytes_written
, total_bytes_written
= 0;
1499 pcchunk
= kmalloc(sizeof(struct copychunk_ioctl
), GFP_KERNEL
);
1501 if (pcchunk
== NULL
)
1504 cifs_dbg(FYI
, "in smb2_copychunk_range - about to call request res key\n");
1505 /* Request a key from the server to identify the source of the copy */
1506 rc
= SMB2_request_res_key(xid
, tlink_tcon(srcfile
->tlink
),
1507 srcfile
->fid
.persistent_fid
,
1508 srcfile
->fid
.volatile_fid
, pcchunk
);
1510 /* Note: request_res_key sets res_key null only if rc !=0 */
1514 /* For now array only one chunk long, will make more flexible later */
1515 pcchunk
->ChunkCount
= cpu_to_le32(1);
1516 pcchunk
->Reserved
= 0;
1517 pcchunk
->Reserved2
= 0;
1519 tcon
= tlink_tcon(trgtfile
->tlink
);
1522 pcchunk
->SourceOffset
= cpu_to_le64(src_off
);
1523 pcchunk
->TargetOffset
= cpu_to_le64(dest_off
);
1525 cpu_to_le32(min_t(u32
, len
, tcon
->max_bytes_chunk
));
1527 /* Request server copy to target from src identified by key */
1528 rc
= SMB2_ioctl(xid
, tcon
, trgtfile
->fid
.persistent_fid
,
1529 trgtfile
->fid
.volatile_fid
, FSCTL_SRV_COPYCHUNK_WRITE
,
1530 true /* is_fsctl */, (char *)pcchunk
,
1531 sizeof(struct copychunk_ioctl
), CIFSMaxBufSize
,
1532 (char **)&retbuf
, &ret_data_len
);
1535 sizeof(struct copychunk_ioctl_rsp
)) {
1536 cifs_dbg(VFS
, "invalid cchunk response size\n");
1540 if (retbuf
->TotalBytesWritten
== 0) {
1541 cifs_dbg(FYI
, "no bytes copied\n");
1546 * Check if server claimed to write more than we asked
1548 if (le32_to_cpu(retbuf
->TotalBytesWritten
) >
1549 le32_to_cpu(pcchunk
->Length
)) {
1550 cifs_dbg(VFS
, "invalid copy chunk response\n");
1554 if (le32_to_cpu(retbuf
->ChunksWritten
) != 1) {
1555 cifs_dbg(VFS
, "invalid num chunks written\n");
1561 bytes_written
= le32_to_cpu(retbuf
->TotalBytesWritten
);
1562 src_off
+= bytes_written
;
1563 dest_off
+= bytes_written
;
1564 len
-= bytes_written
;
1565 total_bytes_written
+= bytes_written
;
1567 cifs_dbg(FYI
, "Chunks %d PartialChunk %d Total %zu\n",
1568 le32_to_cpu(retbuf
->ChunksWritten
),
1569 le32_to_cpu(retbuf
->ChunkBytesWritten
),
1571 } else if (rc
== -EINVAL
) {
1572 if (ret_data_len
!= sizeof(struct copychunk_ioctl_rsp
))
1575 cifs_dbg(FYI
, "MaxChunks %d BytesChunk %d MaxCopy %d\n",
1576 le32_to_cpu(retbuf
->ChunksWritten
),
1577 le32_to_cpu(retbuf
->ChunkBytesWritten
),
1578 le32_to_cpu(retbuf
->TotalBytesWritten
));
1581 * Check if this is the first request using these sizes,
1582 * (ie check if copy succeed once with original sizes
1583 * and check if the server gave us different sizes after
1584 * we already updated max sizes on previous request).
1585 * if not then why is the server returning an error now
1587 if ((chunks_copied
!= 0) || chunk_sizes_updated
)
1590 /* Check that server is not asking us to grow size */
1591 if (le32_to_cpu(retbuf
->ChunkBytesWritten
) <
1592 tcon
->max_bytes_chunk
)
1593 tcon
->max_bytes_chunk
=
1594 le32_to_cpu(retbuf
->ChunkBytesWritten
);
1596 goto cchunk_out
; /* server gave us bogus size */
1598 /* No need to change MaxChunks since already set to 1 */
1599 chunk_sizes_updated
= true;
1610 return total_bytes_written
;
1614 smb2_flush_file(const unsigned int xid
, struct cifs_tcon
*tcon
,
1615 struct cifs_fid
*fid
)
1617 return SMB2_flush(xid
, tcon
, fid
->persistent_fid
, fid
->volatile_fid
);
1621 smb2_read_data_offset(char *buf
)
1623 struct smb2_read_rsp
*rsp
= (struct smb2_read_rsp
*)buf
;
1624 return rsp
->DataOffset
;
1628 smb2_read_data_length(char *buf
, bool in_remaining
)
1630 struct smb2_read_rsp
*rsp
= (struct smb2_read_rsp
*)buf
;
1633 return le32_to_cpu(rsp
->DataRemaining
);
1635 return le32_to_cpu(rsp
->DataLength
);
1640 smb2_sync_read(const unsigned int xid
, struct cifs_fid
*pfid
,
1641 struct cifs_io_parms
*parms
, unsigned int *bytes_read
,
1642 char **buf
, int *buf_type
)
1644 parms
->persistent_fid
= pfid
->persistent_fid
;
1645 parms
->volatile_fid
= pfid
->volatile_fid
;
1646 return SMB2_read(xid
, parms
, bytes_read
, buf
, buf_type
);
1650 smb2_sync_write(const unsigned int xid
, struct cifs_fid
*pfid
,
1651 struct cifs_io_parms
*parms
, unsigned int *written
,
1652 struct kvec
*iov
, unsigned long nr_segs
)
1655 parms
->persistent_fid
= pfid
->persistent_fid
;
1656 parms
->volatile_fid
= pfid
->volatile_fid
;
1657 return SMB2_write(xid
, parms
, written
, iov
, nr_segs
);
1660 /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */
1661 static bool smb2_set_sparse(const unsigned int xid
, struct cifs_tcon
*tcon
,
1662 struct cifsFileInfo
*cfile
, struct inode
*inode
, __u8 setsparse
)
1664 struct cifsInodeInfo
*cifsi
;
1667 cifsi
= CIFS_I(inode
);
1669 /* if file already sparse don't bother setting sparse again */
1670 if ((cifsi
->cifsAttrs
& FILE_ATTRIBUTE_SPARSE_FILE
) && setsparse
)
1671 return true; /* already sparse */
1673 if (!(cifsi
->cifsAttrs
& FILE_ATTRIBUTE_SPARSE_FILE
) && !setsparse
)
1674 return true; /* already not sparse */
1677 * Can't check for sparse support on share the usual way via the
1678 * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share
1679 * since Samba server doesn't set the flag on the share, yet
1680 * supports the set sparse FSCTL and returns sparse correctly
1681 * in the file attributes. If we fail setting sparse though we
1682 * mark that server does not support sparse files for this share
1683 * to avoid repeatedly sending the unsupported fsctl to server
1684 * if the file is repeatedly extended.
1686 if (tcon
->broken_sparse_sup
)
1689 rc
= SMB2_ioctl(xid
, tcon
, cfile
->fid
.persistent_fid
,
1690 cfile
->fid
.volatile_fid
, FSCTL_SET_SPARSE
,
1692 &setsparse
, 1, CIFSMaxBufSize
, NULL
, NULL
);
1694 tcon
->broken_sparse_sup
= true;
1695 cifs_dbg(FYI
, "set sparse rc = %d\n", rc
);
1700 cifsi
->cifsAttrs
|= FILE_ATTRIBUTE_SPARSE_FILE
;
1702 cifsi
->cifsAttrs
&= (~FILE_ATTRIBUTE_SPARSE_FILE
);
1708 smb2_set_file_size(const unsigned int xid
, struct cifs_tcon
*tcon
,
1709 struct cifsFileInfo
*cfile
, __u64 size
, bool set_alloc
)
1711 __le64 eof
= cpu_to_le64(size
);
1712 struct inode
*inode
;
1715 * If extending file more than one page make sparse. Many Linux fs
1716 * make files sparse by default when extending via ftruncate
1718 inode
= d_inode(cfile
->dentry
);
1720 if (!set_alloc
&& (size
> inode
->i_size
+ 8192)) {
1721 __u8 set_sparse
= 1;
1723 /* whether set sparse succeeds or not, extend the file */
1724 smb2_set_sparse(xid
, tcon
, cfile
, inode
, set_sparse
);
1727 return SMB2_set_eof(xid
, tcon
, cfile
->fid
.persistent_fid
,
1728 cfile
->fid
.volatile_fid
, cfile
->pid
, &eof
);
1732 smb2_duplicate_extents(const unsigned int xid
,
1733 struct cifsFileInfo
*srcfile
,
1734 struct cifsFileInfo
*trgtfile
, u64 src_off
,
1735 u64 len
, u64 dest_off
)
1738 unsigned int ret_data_len
;
1739 struct duplicate_extents_to_file dup_ext_buf
;
1740 struct cifs_tcon
*tcon
= tlink_tcon(trgtfile
->tlink
);
1742 /* server fileays advertise duplicate extent support with this flag */
1743 if ((le32_to_cpu(tcon
->fsAttrInfo
.Attributes
) &
1744 FILE_SUPPORTS_BLOCK_REFCOUNTING
) == 0)
1747 dup_ext_buf
.VolatileFileHandle
= srcfile
->fid
.volatile_fid
;
1748 dup_ext_buf
.PersistentFileHandle
= srcfile
->fid
.persistent_fid
;
1749 dup_ext_buf
.SourceFileOffset
= cpu_to_le64(src_off
);
1750 dup_ext_buf
.TargetFileOffset
= cpu_to_le64(dest_off
);
1751 dup_ext_buf
.ByteCount
= cpu_to_le64(len
);
1752 cifs_dbg(FYI
, "duplicate extents: src off %lld dst off %lld len %lld",
1753 src_off
, dest_off
, len
);
1755 rc
= smb2_set_file_size(xid
, tcon
, trgtfile
, dest_off
+ len
, false);
1757 goto duplicate_extents_out
;
1759 rc
= SMB2_ioctl(xid
, tcon
, trgtfile
->fid
.persistent_fid
,
1760 trgtfile
->fid
.volatile_fid
,
1761 FSCTL_DUPLICATE_EXTENTS_TO_FILE
,
1762 true /* is_fsctl */,
1763 (char *)&dup_ext_buf
,
1764 sizeof(struct duplicate_extents_to_file
),
1765 CIFSMaxBufSize
, NULL
,
1768 if (ret_data_len
> 0)
1769 cifs_dbg(FYI
, "non-zero response length in duplicate extents");
1771 duplicate_extents_out
:
1776 smb2_set_compression(const unsigned int xid
, struct cifs_tcon
*tcon
,
1777 struct cifsFileInfo
*cfile
)
1779 return SMB2_set_compression(xid
, tcon
, cfile
->fid
.persistent_fid
,
1780 cfile
->fid
.volatile_fid
);
1784 smb3_set_integrity(const unsigned int xid
, struct cifs_tcon
*tcon
,
1785 struct cifsFileInfo
*cfile
)
1787 struct fsctl_set_integrity_information_req integr_info
;
1788 unsigned int ret_data_len
;
1790 integr_info
.ChecksumAlgorithm
= cpu_to_le16(CHECKSUM_TYPE_UNCHANGED
);
1791 integr_info
.Flags
= 0;
1792 integr_info
.Reserved
= 0;
1794 return SMB2_ioctl(xid
, tcon
, cfile
->fid
.persistent_fid
,
1795 cfile
->fid
.volatile_fid
,
1796 FSCTL_SET_INTEGRITY_INFORMATION
,
1797 true /* is_fsctl */,
1798 (char *)&integr_info
,
1799 sizeof(struct fsctl_set_integrity_information_req
),
1800 CIFSMaxBufSize
, NULL
,
1805 /* GMT Token is @GMT-YYYY.MM.DD-HH.MM.SS Unicode which is 48 bytes + null */
1806 #define GMT_TOKEN_SIZE 50
1808 #define MIN_SNAPSHOT_ARRAY_SIZE 16 /* See MS-SMB2 section 3.3.5.15.1 */
1811 * Input buffer contains (empty) struct smb_snapshot array with size filled in
1812 * For output see struct SRV_SNAPSHOT_ARRAY in MS-SMB2 section 2.2.32.2
1815 smb3_enum_snapshots(const unsigned int xid
, struct cifs_tcon
*tcon
,
1816 struct cifsFileInfo
*cfile
, void __user
*ioc_buf
)
1818 char *retbuf
= NULL
;
1819 unsigned int ret_data_len
= 0;
1821 u32 max_response_size
;
1822 struct smb_snapshot_array snapshot_in
;
1824 if (get_user(ret_data_len
, (unsigned int __user
*)ioc_buf
))
1828 * Note that for snapshot queries that servers like Azure expect that
1829 * the first query be minimal size (and just used to get the number/size
1830 * of previous versions) so response size must be specified as EXACTLY
1831 * sizeof(struct snapshot_array) which is 16 when rounded up to multiple
1834 if (ret_data_len
== 0)
1835 max_response_size
= MIN_SNAPSHOT_ARRAY_SIZE
;
1837 max_response_size
= CIFSMaxBufSize
;
1839 rc
= SMB2_ioctl(xid
, tcon
, cfile
->fid
.persistent_fid
,
1840 cfile
->fid
.volatile_fid
,
1841 FSCTL_SRV_ENUMERATE_SNAPSHOTS
,
1842 true /* is_fsctl */,
1843 NULL
, 0 /* no input data */, max_response_size
,
1846 cifs_dbg(FYI
, "enum snaphots ioctl returned %d and ret buflen is %d\n",
1851 if (ret_data_len
&& (ioc_buf
!= NULL
) && (retbuf
!= NULL
)) {
1853 if (copy_from_user(&snapshot_in
, ioc_buf
,
1854 sizeof(struct smb_snapshot_array
))) {
1861 * Check for min size, ie not large enough to fit even one GMT
1862 * token (snapshot). On the first ioctl some users may pass in
1863 * smaller size (or zero) to simply get the size of the array
1864 * so the user space caller can allocate sufficient memory
1865 * and retry the ioctl again with larger array size sufficient
1866 * to hold all of the snapshot GMT tokens on the second try.
1868 if (snapshot_in
.snapshot_array_size
< GMT_TOKEN_SIZE
)
1869 ret_data_len
= sizeof(struct smb_snapshot_array
);
1872 * We return struct SRV_SNAPSHOT_ARRAY, followed by
1873 * the snapshot array (of 50 byte GMT tokens) each
1874 * representing an available previous version of the data
1876 if (ret_data_len
> (snapshot_in
.snapshot_array_size
+
1877 sizeof(struct smb_snapshot_array
)))
1878 ret_data_len
= snapshot_in
.snapshot_array_size
+
1879 sizeof(struct smb_snapshot_array
);
1881 if (copy_to_user(ioc_buf
, retbuf
, ret_data_len
))
1890 smb2_query_dir_first(const unsigned int xid
, struct cifs_tcon
*tcon
,
1891 const char *path
, struct cifs_sb_info
*cifs_sb
,
1892 struct cifs_fid
*fid
, __u16 search_flags
,
1893 struct cifs_search_info
*srch_inf
)
1897 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
1898 struct cifs_open_parms oparms
;
1900 utf16_path
= cifs_convert_path_to_utf16(path
, cifs_sb
);
1905 oparms
.desired_access
= FILE_READ_ATTRIBUTES
| FILE_READ_DATA
;
1906 oparms
.disposition
= FILE_OPEN
;
1907 if (backup_cred(cifs_sb
))
1908 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
1910 oparms
.create_options
= 0;
1912 oparms
.reconnect
= false;
1914 rc
= SMB2_open(xid
, &oparms
, utf16_path
, &oplock
, NULL
, NULL
, NULL
);
1917 cifs_dbg(FYI
, "open dir failed rc=%d\n", rc
);
1921 srch_inf
->entries_in_buffer
= 0;
1922 srch_inf
->index_of_last_entry
= 2;
1924 rc
= SMB2_query_directory(xid
, tcon
, fid
->persistent_fid
,
1925 fid
->volatile_fid
, 0, srch_inf
);
1927 cifs_dbg(FYI
, "query directory failed rc=%d\n", rc
);
1928 SMB2_close(xid
, tcon
, fid
->persistent_fid
, fid
->volatile_fid
);
1934 smb2_query_dir_next(const unsigned int xid
, struct cifs_tcon
*tcon
,
1935 struct cifs_fid
*fid
, __u16 search_flags
,
1936 struct cifs_search_info
*srch_inf
)
1938 return SMB2_query_directory(xid
, tcon
, fid
->persistent_fid
,
1939 fid
->volatile_fid
, 0, srch_inf
);
1943 smb2_close_dir(const unsigned int xid
, struct cifs_tcon
*tcon
,
1944 struct cifs_fid
*fid
)
1946 return SMB2_close(xid
, tcon
, fid
->persistent_fid
, fid
->volatile_fid
);
1950 * If we negotiate SMB2 protocol and get STATUS_PENDING - update
1951 * the number of credits and return true. Otherwise - return false.
1954 smb2_is_status_pending(char *buf
, struct TCP_Server_Info
*server
)
1956 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)buf
;
1958 if (shdr
->Status
!= STATUS_PENDING
)
1961 if (shdr
->CreditRequest
) {
1962 spin_lock(&server
->req_lock
);
1963 server
->credits
+= le16_to_cpu(shdr
->CreditRequest
);
1964 spin_unlock(&server
->req_lock
);
1965 wake_up(&server
->request_q
);
1972 smb2_is_session_expired(char *buf
)
1974 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)buf
;
1976 if (shdr
->Status
!= STATUS_NETWORK_SESSION_EXPIRED
&&
1977 shdr
->Status
!= STATUS_USER_SESSION_DELETED
)
1980 trace_smb3_ses_expired(shdr
->TreeId
, shdr
->SessionId
,
1981 le16_to_cpu(shdr
->Command
),
1982 le64_to_cpu(shdr
->MessageId
));
1983 cifs_dbg(FYI
, "Session expired or deleted\n");
1989 smb2_oplock_response(struct cifs_tcon
*tcon
, struct cifs_fid
*fid
,
1990 struct cifsInodeInfo
*cinode
)
1992 if (tcon
->ses
->server
->capabilities
& SMB2_GLOBAL_CAP_LEASING
)
1993 return SMB2_lease_break(0, tcon
, cinode
->lease_key
,
1994 smb2_get_lease_state(cinode
));
1996 return SMB2_oplock_break(0, tcon
, fid
->persistent_fid
,
1998 CIFS_CACHE_READ(cinode
) ? 1 : 0);
2002 smb2_set_related(struct smb_rqst
*rqst
)
2004 struct smb2_sync_hdr
*shdr
;
2006 shdr
= (struct smb2_sync_hdr
*)(rqst
->rq_iov
[0].iov_base
);
2007 shdr
->Flags
|= SMB2_FLAGS_RELATED_OPERATIONS
;
2010 char smb2_padding
[7] = {0, 0, 0, 0, 0, 0, 0};
2013 smb2_set_next_command(struct cifs_tcon
*tcon
, struct smb_rqst
*rqst
)
2015 struct smb2_sync_hdr
*shdr
;
2016 struct cifs_ses
*ses
= tcon
->ses
;
2017 struct TCP_Server_Info
*server
= ses
->server
;
2018 unsigned long len
= smb_rqst_len(server
, rqst
);
2021 /* SMB headers in a compound are 8 byte aligned. */
2023 /* No padding needed */
2027 num_padding
= 8 - (len
& 7);
2028 if (!smb3_encryption_required(tcon
)) {
2030 * If we do not have encryption then we can just add an extra
2031 * iov for the padding.
2033 rqst
->rq_iov
[rqst
->rq_nvec
].iov_base
= smb2_padding
;
2034 rqst
->rq_iov
[rqst
->rq_nvec
].iov_len
= num_padding
;
2039 * We can not add a small padding iov for the encryption case
2040 * because the encryption framework can not handle the padding
2042 * We have to flatten this into a single buffer and add
2043 * the padding to it.
2045 for (i
= 1; i
< rqst
->rq_nvec
; i
++) {
2046 memcpy(rqst
->rq_iov
[0].iov_base
+
2047 rqst
->rq_iov
[0].iov_len
,
2048 rqst
->rq_iov
[i
].iov_base
,
2049 rqst
->rq_iov
[i
].iov_len
);
2050 rqst
->rq_iov
[0].iov_len
+= rqst
->rq_iov
[i
].iov_len
;
2052 memset(rqst
->rq_iov
[0].iov_base
+ rqst
->rq_iov
[0].iov_len
,
2054 rqst
->rq_iov
[0].iov_len
+= num_padding
;
2060 shdr
= (struct smb2_sync_hdr
*)(rqst
->rq_iov
[0].iov_base
);
2061 shdr
->NextCommand
= cpu_to_le32(len
);
2065 * Passes the query info response back to the caller on success.
2066 * Caller need to free this with free_rsp_buf().
2069 smb2_query_info_compound(const unsigned int xid
, struct cifs_tcon
*tcon
,
2070 __le16
*utf16_path
, u32 desired_access
,
2071 u32
class, u32 type
, u32 output_len
,
2072 struct kvec
*rsp
, int *buftype
,
2073 struct cifs_sb_info
*cifs_sb
)
2075 struct cifs_ses
*ses
= tcon
->ses
;
2077 struct smb_rqst rqst
[3];
2078 int resp_buftype
[3];
2079 struct kvec rsp_iov
[3];
2080 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
2081 struct kvec qi_iov
[1];
2082 struct kvec close_iov
[1];
2083 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
2084 struct cifs_open_parms oparms
;
2085 struct cifs_fid fid
;
2088 if (smb3_encryption_required(tcon
))
2089 flags
|= CIFS_TRANSFORM_REQ
;
2091 memset(rqst
, 0, sizeof(rqst
));
2092 resp_buftype
[0] = resp_buftype
[1] = resp_buftype
[2] = CIFS_NO_BUFFER
;
2093 memset(rsp_iov
, 0, sizeof(rsp_iov
));
2095 memset(&open_iov
, 0, sizeof(open_iov
));
2096 rqst
[0].rq_iov
= open_iov
;
2097 rqst
[0].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
2100 oparms
.desired_access
= desired_access
;
2101 oparms
.disposition
= FILE_OPEN
;
2102 if (cifs_sb
&& backup_cred(cifs_sb
))
2103 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
2105 oparms
.create_options
= 0;
2107 oparms
.reconnect
= false;
2109 rc
= SMB2_open_init(tcon
, &rqst
[0], &oplock
, &oparms
, utf16_path
);
2112 smb2_set_next_command(tcon
, &rqst
[0]);
2114 memset(&qi_iov
, 0, sizeof(qi_iov
));
2115 rqst
[1].rq_iov
= qi_iov
;
2116 rqst
[1].rq_nvec
= 1;
2118 rc
= SMB2_query_info_init(tcon
, &rqst
[1], COMPOUND_FID
, COMPOUND_FID
,
2124 smb2_set_next_command(tcon
, &rqst
[1]);
2125 smb2_set_related(&rqst
[1]);
2127 memset(&close_iov
, 0, sizeof(close_iov
));
2128 rqst
[2].rq_iov
= close_iov
;
2129 rqst
[2].rq_nvec
= 1;
2131 rc
= SMB2_close_init(tcon
, &rqst
[2], COMPOUND_FID
, COMPOUND_FID
);
2134 smb2_set_related(&rqst
[2]);
2136 rc
= compound_send_recv(xid
, ses
, flags
, 3, rqst
,
2137 resp_buftype
, rsp_iov
);
2139 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
2143 *buftype
= resp_buftype
[1];
2146 SMB2_open_free(&rqst
[0]);
2147 SMB2_query_info_free(&rqst
[1]);
2148 SMB2_close_free(&rqst
[2]);
2149 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
2150 free_rsp_buf(resp_buftype
[2], rsp_iov
[2].iov_base
);
2155 smb2_queryfs(const unsigned int xid
, struct cifs_tcon
*tcon
,
2156 struct kstatfs
*buf
)
2158 struct smb2_query_info_rsp
*rsp
;
2159 struct smb2_fs_full_size_info
*info
= NULL
;
2160 __le16 utf16_path
= 0; /* Null - open root of share */
2161 struct kvec rsp_iov
= {NULL
, 0};
2162 int buftype
= CIFS_NO_BUFFER
;
2166 rc
= smb2_query_info_compound(xid
, tcon
, &utf16_path
,
2167 FILE_READ_ATTRIBUTES
,
2168 FS_FULL_SIZE_INFORMATION
,
2169 SMB2_O_INFO_FILESYSTEM
,
2170 sizeof(struct smb2_fs_full_size_info
),
2171 &rsp_iov
, &buftype
, NULL
);
2175 rsp
= (struct smb2_query_info_rsp
*)rsp_iov
.iov_base
;
2176 buf
->f_type
= SMB2_MAGIC_NUMBER
;
2177 info
= (struct smb2_fs_full_size_info
*)(
2178 le16_to_cpu(rsp
->OutputBufferOffset
) + (char *)rsp
);
2179 rc
= smb2_validate_iov(le16_to_cpu(rsp
->OutputBufferOffset
),
2180 le32_to_cpu(rsp
->OutputBufferLength
),
2182 sizeof(struct smb2_fs_full_size_info
));
2184 smb2_copy_fs_info_to_kstatfs(info
, buf
);
2187 free_rsp_buf(buftype
, rsp_iov
.iov_base
);
2192 smb311_queryfs(const unsigned int xid
, struct cifs_tcon
*tcon
,
2193 struct kstatfs
*buf
)
2196 __le16 srch_path
= 0; /* Null - open root of share */
2197 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
2198 struct cifs_open_parms oparms
;
2199 struct cifs_fid fid
;
2201 if (!tcon
->posix_extensions
)
2202 return smb2_queryfs(xid
, tcon
, buf
);
2205 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
2206 oparms
.disposition
= FILE_OPEN
;
2207 oparms
.create_options
= 0;
2209 oparms
.reconnect
= false;
2211 rc
= SMB2_open(xid
, &oparms
, &srch_path
, &oplock
, NULL
, NULL
, NULL
);
2215 rc
= SMB311_posix_qfs_info(xid
, tcon
, fid
.persistent_fid
,
2216 fid
.volatile_fid
, buf
);
2217 buf
->f_type
= SMB2_MAGIC_NUMBER
;
2218 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
2223 smb2_compare_fids(struct cifsFileInfo
*ob1
, struct cifsFileInfo
*ob2
)
2225 return ob1
->fid
.persistent_fid
== ob2
->fid
.persistent_fid
&&
2226 ob1
->fid
.volatile_fid
== ob2
->fid
.volatile_fid
;
2230 smb2_mand_lock(const unsigned int xid
, struct cifsFileInfo
*cfile
, __u64 offset
,
2231 __u64 length
, __u32 type
, int lock
, int unlock
, bool wait
)
2233 if (unlock
&& !lock
)
2234 type
= SMB2_LOCKFLAG_UNLOCK
;
2235 return SMB2_lock(xid
, tlink_tcon(cfile
->tlink
),
2236 cfile
->fid
.persistent_fid
, cfile
->fid
.volatile_fid
,
2237 current
->tgid
, length
, offset
, type
, wait
);
2241 smb2_get_lease_key(struct inode
*inode
, struct cifs_fid
*fid
)
2243 memcpy(fid
->lease_key
, CIFS_I(inode
)->lease_key
, SMB2_LEASE_KEY_SIZE
);
2247 smb2_set_lease_key(struct inode
*inode
, struct cifs_fid
*fid
)
2249 memcpy(CIFS_I(inode
)->lease_key
, fid
->lease_key
, SMB2_LEASE_KEY_SIZE
);
2253 smb2_new_lease_key(struct cifs_fid
*fid
)
2255 generate_random_uuid(fid
->lease_key
);
2259 smb2_get_dfs_refer(const unsigned int xid
, struct cifs_ses
*ses
,
2260 const char *search_name
,
2261 struct dfs_info3_param
**target_nodes
,
2262 unsigned int *num_of_nodes
,
2263 const struct nls_table
*nls_codepage
, int remap
)
2266 __le16
*utf16_path
= NULL
;
2267 int utf16_path_len
= 0;
2268 struct cifs_tcon
*tcon
;
2269 struct fsctl_get_dfs_referral_req
*dfs_req
= NULL
;
2270 struct get_dfs_referral_rsp
*dfs_rsp
= NULL
;
2271 u32 dfs_req_size
= 0, dfs_rsp_size
= 0;
2273 cifs_dbg(FYI
, "smb2_get_dfs_refer path <%s>\n", search_name
);
2276 * Try to use the IPC tcon, otherwise just use any
2278 tcon
= ses
->tcon_ipc
;
2280 spin_lock(&cifs_tcp_ses_lock
);
2281 tcon
= list_first_entry_or_null(&ses
->tcon_list
,
2286 spin_unlock(&cifs_tcp_ses_lock
);
2290 cifs_dbg(VFS
, "session %p has no tcon available for a dfs referral request\n",
2296 utf16_path
= cifs_strndup_to_utf16(search_name
, PATH_MAX
,
2298 nls_codepage
, remap
);
2304 dfs_req_size
= sizeof(*dfs_req
) + utf16_path_len
;
2305 dfs_req
= kzalloc(dfs_req_size
, GFP_KERNEL
);
2311 /* Highest DFS referral version understood */
2312 dfs_req
->MaxReferralLevel
= DFS_VERSION
;
2314 /* Path to resolve in an UTF-16 null-terminated string */
2315 memcpy(dfs_req
->RequestFileName
, utf16_path
, utf16_path_len
);
2318 rc
= SMB2_ioctl(xid
, tcon
, NO_FILE_ID
, NO_FILE_ID
,
2319 FSCTL_DFS_GET_REFERRALS
,
2320 true /* is_fsctl */,
2321 (char *)dfs_req
, dfs_req_size
, CIFSMaxBufSize
,
2322 (char **)&dfs_rsp
, &dfs_rsp_size
);
2323 } while (rc
== -EAGAIN
);
2326 if ((rc
!= -ENOENT
) && (rc
!= -EOPNOTSUPP
))
2327 cifs_dbg(VFS
, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc
);
2331 rc
= parse_dfs_referrals(dfs_rsp
, dfs_rsp_size
,
2332 num_of_nodes
, target_nodes
,
2333 nls_codepage
, remap
, search_name
,
2334 true /* is_unicode */);
2336 cifs_dbg(VFS
, "parse error in smb2_get_dfs_refer rc=%d\n", rc
);
2341 if (tcon
&& !tcon
->ipc
) {
2342 /* ipc tcons are not refcounted */
2343 spin_lock(&cifs_tcp_ses_lock
);
2345 spin_unlock(&cifs_tcp_ses_lock
);
2352 #define SMB2_SYMLINK_STRUCT_SIZE \
2353 (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp))
2356 smb2_query_symlink(const unsigned int xid
, struct cifs_tcon
*tcon
,
2357 const char *full_path
, char **target_path
,
2358 struct cifs_sb_info
*cifs_sb
)
2362 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
2363 struct cifs_open_parms oparms
;
2364 struct cifs_fid fid
;
2365 struct kvec err_iov
= {NULL
, 0};
2366 struct smb2_err_rsp
*err_buf
= NULL
;
2368 struct smb2_symlink_err_rsp
*symlink
;
2369 unsigned int sub_len
;
2370 unsigned int sub_offset
;
2371 unsigned int print_len
;
2372 unsigned int print_offset
;
2374 cifs_dbg(FYI
, "%s: path: %s\n", __func__
, full_path
);
2376 utf16_path
= cifs_convert_path_to_utf16(full_path
, cifs_sb
);
2381 oparms
.desired_access
= FILE_READ_ATTRIBUTES
;
2382 oparms
.disposition
= FILE_OPEN
;
2383 if (backup_cred(cifs_sb
))
2384 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
2386 oparms
.create_options
= 0;
2388 oparms
.reconnect
= false;
2390 rc
= SMB2_open(xid
, &oparms
, utf16_path
, &oplock
, NULL
, &err_iov
,
2393 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
2394 if (!rc
|| !err_iov
.iov_base
) {
2399 err_buf
= err_iov
.iov_base
;
2400 if (le32_to_cpu(err_buf
->ByteCount
) < sizeof(struct smb2_symlink_err_rsp
) ||
2401 err_iov
.iov_len
< SMB2_SYMLINK_STRUCT_SIZE
) {
2406 /* open must fail on symlink - reset rc */
2408 symlink
= (struct smb2_symlink_err_rsp
*)err_buf
->ErrorData
;
2409 sub_len
= le16_to_cpu(symlink
->SubstituteNameLength
);
2410 sub_offset
= le16_to_cpu(symlink
->SubstituteNameOffset
);
2411 print_len
= le16_to_cpu(symlink
->PrintNameLength
);
2412 print_offset
= le16_to_cpu(symlink
->PrintNameOffset
);
2414 if (err_iov
.iov_len
< SMB2_SYMLINK_STRUCT_SIZE
+ sub_offset
+ sub_len
) {
2419 if (err_iov
.iov_len
<
2420 SMB2_SYMLINK_STRUCT_SIZE
+ print_offset
+ print_len
) {
2425 *target_path
= cifs_strndup_from_utf16(
2426 (char *)symlink
->PathBuffer
+ sub_offset
,
2427 sub_len
, true, cifs_sb
->local_nls
);
2428 if (!(*target_path
)) {
2432 convert_delimiter(*target_path
, '/');
2433 cifs_dbg(FYI
, "%s: target path: %s\n", __func__
, *target_path
);
2436 free_rsp_buf(resp_buftype
, err_buf
);
2442 #ifdef CONFIG_CIFS_ACL
2443 static struct cifs_ntsd
*
2444 get_smb2_acl_by_fid(struct cifs_sb_info
*cifs_sb
,
2445 const struct cifs_fid
*cifsfid
, u32
*pacllen
)
2447 struct cifs_ntsd
*pntsd
= NULL
;
2449 int rc
= -EOPNOTSUPP
;
2450 struct tcon_link
*tlink
= cifs_sb_tlink(cifs_sb
);
2453 return ERR_CAST(tlink
);
2456 cifs_dbg(FYI
, "trying to get acl\n");
2458 rc
= SMB2_query_acl(xid
, tlink_tcon(tlink
), cifsfid
->persistent_fid
,
2459 cifsfid
->volatile_fid
, (void **)&pntsd
, pacllen
);
2462 cifs_put_tlink(tlink
);
2464 cifs_dbg(FYI
, "%s: rc = %d ACL len %d\n", __func__
, rc
, *pacllen
);
2471 static struct cifs_ntsd
*
2472 get_smb2_acl_by_path(struct cifs_sb_info
*cifs_sb
,
2473 const char *path
, u32
*pacllen
)
2475 struct cifs_ntsd
*pntsd
= NULL
;
2476 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
2479 struct cifs_tcon
*tcon
;
2480 struct tcon_link
*tlink
= cifs_sb_tlink(cifs_sb
);
2481 struct cifs_fid fid
;
2482 struct cifs_open_parms oparms
;
2485 cifs_dbg(FYI
, "get smb3 acl for path %s\n", path
);
2487 return ERR_CAST(tlink
);
2489 tcon
= tlink_tcon(tlink
);
2492 if (backup_cred(cifs_sb
))
2493 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
2495 oparms
.create_options
= 0;
2497 utf16_path
= cifs_convert_path_to_utf16(path
, cifs_sb
);
2505 oparms
.desired_access
= READ_CONTROL
;
2506 oparms
.disposition
= FILE_OPEN
;
2508 oparms
.reconnect
= false;
2510 rc
= SMB2_open(xid
, &oparms
, utf16_path
, &oplock
, NULL
, NULL
, NULL
);
2513 rc
= SMB2_query_acl(xid
, tlink_tcon(tlink
), fid
.persistent_fid
,
2514 fid
.volatile_fid
, (void **)&pntsd
, pacllen
);
2515 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
2518 cifs_put_tlink(tlink
);
2521 cifs_dbg(FYI
, "%s: rc = %d ACL len %d\n", __func__
, rc
, *pacllen
);
2527 #ifdef CONFIG_CIFS_ACL
2529 set_smb2_acl(struct cifs_ntsd
*pnntsd
, __u32 acllen
,
2530 struct inode
*inode
, const char *path
, int aclflag
)
2532 u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
2534 int rc
, access_flags
= 0;
2535 struct cifs_tcon
*tcon
;
2536 struct cifs_sb_info
*cifs_sb
= CIFS_SB(inode
->i_sb
);
2537 struct tcon_link
*tlink
= cifs_sb_tlink(cifs_sb
);
2538 struct cifs_fid fid
;
2539 struct cifs_open_parms oparms
;
2542 cifs_dbg(FYI
, "set smb3 acl for path %s\n", path
);
2544 return PTR_ERR(tlink
);
2546 tcon
= tlink_tcon(tlink
);
2549 if (backup_cred(cifs_sb
))
2550 oparms
.create_options
= CREATE_OPEN_BACKUP_INTENT
;
2552 oparms
.create_options
= 0;
2554 if (aclflag
== CIFS_ACL_OWNER
|| aclflag
== CIFS_ACL_GROUP
)
2555 access_flags
= WRITE_OWNER
;
2557 access_flags
= WRITE_DAC
;
2559 utf16_path
= cifs_convert_path_to_utf16(path
, cifs_sb
);
2567 oparms
.desired_access
= access_flags
;
2568 oparms
.disposition
= FILE_OPEN
;
2571 oparms
.reconnect
= false;
2573 rc
= SMB2_open(xid
, &oparms
, utf16_path
, &oplock
, NULL
, NULL
, NULL
);
2576 rc
= SMB2_set_acl(xid
, tlink_tcon(tlink
), fid
.persistent_fid
,
2577 fid
.volatile_fid
, pnntsd
, acllen
, aclflag
);
2578 SMB2_close(xid
, tcon
, fid
.persistent_fid
, fid
.volatile_fid
);
2581 cifs_put_tlink(tlink
);
2585 #endif /* CIFS_ACL */
2587 /* Retrieve an ACL from the server */
2588 static struct cifs_ntsd
*
2589 get_smb2_acl(struct cifs_sb_info
*cifs_sb
,
2590 struct inode
*inode
, const char *path
,
2593 struct cifs_ntsd
*pntsd
= NULL
;
2594 struct cifsFileInfo
*open_file
= NULL
;
2597 open_file
= find_readable_file(CIFS_I(inode
), true);
2599 return get_smb2_acl_by_path(cifs_sb
, path
, pacllen
);
2601 pntsd
= get_smb2_acl_by_fid(cifs_sb
, &open_file
->fid
, pacllen
);
2602 cifsFileInfo_put(open_file
);
2607 static long smb3_zero_range(struct file
*file
, struct cifs_tcon
*tcon
,
2608 loff_t offset
, loff_t len
, bool keep_size
)
2610 struct cifs_ses
*ses
= tcon
->ses
;
2611 struct inode
*inode
;
2612 struct cifsInodeInfo
*cifsi
;
2613 struct cifsFileInfo
*cfile
= file
->private_data
;
2614 struct file_zero_data_information fsctl_buf
;
2615 struct smb_rqst rqst
[2];
2616 int resp_buftype
[2];
2617 struct kvec rsp_iov
[2];
2618 struct kvec io_iov
[SMB2_IOCTL_IOV_SIZE
];
2619 struct kvec si_iov
[1];
2620 unsigned int size
[1];
2624 int num
= 0, flags
= 0;
2629 inode
= d_inode(cfile
->dentry
);
2630 cifsi
= CIFS_I(inode
);
2632 trace_smb3_zero_enter(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2633 ses
->Suid
, offset
, len
);
2636 /* if file not oplocked can't be sure whether asking to extend size */
2637 if (!CIFS_CACHE_READ(cifsi
))
2638 if (keep_size
== false) {
2640 trace_smb3_zero_err(xid
, cfile
->fid
.persistent_fid
,
2641 tcon
->tid
, ses
->Suid
, offset
, len
, rc
);
2647 * Must check if file sparse since fallocate -z (zero range) assumes
2648 * non-sparse allocation
2650 if (!(cifsi
->cifsAttrs
& FILE_ATTRIBUTE_SPARSE_FILE
)) {
2652 trace_smb3_zero_err(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2653 ses
->Suid
, offset
, len
, rc
);
2658 cifs_dbg(FYI
, "offset %lld len %lld", offset
, len
);
2660 fsctl_buf
.FileOffset
= cpu_to_le64(offset
);
2661 fsctl_buf
.BeyondFinalZero
= cpu_to_le64(offset
+ len
);
2663 if (smb3_encryption_required(tcon
))
2664 flags
|= CIFS_TRANSFORM_REQ
;
2666 memset(rqst
, 0, sizeof(rqst
));
2667 resp_buftype
[0] = resp_buftype
[1] = CIFS_NO_BUFFER
;
2668 memset(rsp_iov
, 0, sizeof(rsp_iov
));
2671 memset(&io_iov
, 0, sizeof(io_iov
));
2672 rqst
[num
].rq_iov
= io_iov
;
2673 rqst
[num
].rq_nvec
= SMB2_IOCTL_IOV_SIZE
;
2674 rc
= SMB2_ioctl_init(tcon
, &rqst
[num
++], cfile
->fid
.persistent_fid
,
2675 cfile
->fid
.volatile_fid
, FSCTL_SET_ZERO_DATA
,
2676 true /* is_fctl */, (char *)&fsctl_buf
,
2677 sizeof(struct file_zero_data_information
),
2680 goto zero_range_exit
;
2683 * do we also need to change the size of the file?
2685 if (keep_size
== false && i_size_read(inode
) < offset
+ len
) {
2686 smb2_set_next_command(tcon
, &rqst
[0]);
2688 memset(&si_iov
, 0, sizeof(si_iov
));
2689 rqst
[num
].rq_iov
= si_iov
;
2690 rqst
[num
].rq_nvec
= 1;
2692 eof
= cpu_to_le64(offset
+ len
);
2693 size
[0] = 8; /* sizeof __le64 */
2696 rc
= SMB2_set_info_init(tcon
, &rqst
[num
++],
2697 cfile
->fid
.persistent_fid
,
2698 cfile
->fid
.persistent_fid
,
2700 FILE_END_OF_FILE_INFORMATION
,
2701 SMB2_O_INFO_FILE
, 0, data
, size
);
2702 smb2_set_related(&rqst
[1]);
2705 rc
= compound_send_recv(xid
, ses
, flags
, num
, rqst
,
2706 resp_buftype
, rsp_iov
);
2709 SMB2_ioctl_free(&rqst
[0]);
2710 SMB2_set_info_free(&rqst
[1]);
2711 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
2712 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
2715 trace_smb3_zero_err(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2716 ses
->Suid
, offset
, len
, rc
);
2718 trace_smb3_zero_done(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2719 ses
->Suid
, offset
, len
);
2723 static long smb3_punch_hole(struct file
*file
, struct cifs_tcon
*tcon
,
2724 loff_t offset
, loff_t len
)
2726 struct inode
*inode
;
2727 struct cifsInodeInfo
*cifsi
;
2728 struct cifsFileInfo
*cfile
= file
->private_data
;
2729 struct file_zero_data_information fsctl_buf
;
2732 __u8 set_sparse
= 1;
2736 inode
= d_inode(cfile
->dentry
);
2737 cifsi
= CIFS_I(inode
);
2739 /* Need to make file sparse, if not already, before freeing range. */
2740 /* Consider adding equivalent for compressed since it could also work */
2741 if (!smb2_set_sparse(xid
, tcon
, cfile
, inode
, set_sparse
)) {
2747 cifs_dbg(FYI
, "offset %lld len %lld", offset
, len
);
2749 fsctl_buf
.FileOffset
= cpu_to_le64(offset
);
2750 fsctl_buf
.BeyondFinalZero
= cpu_to_le64(offset
+ len
);
2752 rc
= SMB2_ioctl(xid
, tcon
, cfile
->fid
.persistent_fid
,
2753 cfile
->fid
.volatile_fid
, FSCTL_SET_ZERO_DATA
,
2754 true /* is_fctl */, (char *)&fsctl_buf
,
2755 sizeof(struct file_zero_data_information
),
2756 CIFSMaxBufSize
, NULL
, NULL
);
2761 static long smb3_simple_falloc(struct file
*file
, struct cifs_tcon
*tcon
,
2762 loff_t off
, loff_t len
, bool keep_size
)
2764 struct inode
*inode
;
2765 struct cifsInodeInfo
*cifsi
;
2766 struct cifsFileInfo
*cfile
= file
->private_data
;
2767 long rc
= -EOPNOTSUPP
;
2773 inode
= d_inode(cfile
->dentry
);
2774 cifsi
= CIFS_I(inode
);
2776 trace_smb3_falloc_enter(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2777 tcon
->ses
->Suid
, off
, len
);
2778 /* if file not oplocked can't be sure whether asking to extend size */
2779 if (!CIFS_CACHE_READ(cifsi
))
2780 if (keep_size
== false) {
2781 trace_smb3_falloc_err(xid
, cfile
->fid
.persistent_fid
,
2782 tcon
->tid
, tcon
->ses
->Suid
, off
, len
, rc
);
2788 * Files are non-sparse by default so falloc may be a no-op
2789 * Must check if file sparse. If not sparse, and not extending
2790 * then no need to do anything since file already allocated
2792 if ((cifsi
->cifsAttrs
& FILE_ATTRIBUTE_SPARSE_FILE
) == 0) {
2793 if (keep_size
== true)
2795 /* check if extending file */
2796 else if (i_size_read(inode
) >= off
+ len
)
2797 /* not extending file and already not sparse */
2799 /* BB: in future add else clause to extend file */
2803 trace_smb3_falloc_err(xid
, cfile
->fid
.persistent_fid
,
2804 tcon
->tid
, tcon
->ses
->Suid
, off
, len
, rc
);
2806 trace_smb3_falloc_done(xid
, cfile
->fid
.persistent_fid
,
2807 tcon
->tid
, tcon
->ses
->Suid
, off
, len
);
2812 if ((keep_size
== true) || (i_size_read(inode
) >= off
+ len
)) {
2814 * Check if falloc starts within first few pages of file
2815 * and ends within a few pages of the end of file to
2816 * ensure that most of file is being forced to be
2817 * fallocated now. If so then setting whole file sparse
2818 * ie potentially making a few extra pages at the beginning
2819 * or end of the file non-sparse via set_sparse is harmless.
2821 if ((off
> 8192) || (off
+ len
+ 8192 < i_size_read(inode
))) {
2823 trace_smb3_falloc_err(xid
, cfile
->fid
.persistent_fid
,
2824 tcon
->tid
, tcon
->ses
->Suid
, off
, len
, rc
);
2829 smb2_set_sparse(xid
, tcon
, cfile
, inode
, false);
2832 smb2_set_sparse(xid
, tcon
, cfile
, inode
, false);
2834 if (i_size_read(inode
) < off
+ len
) {
2835 eof
= cpu_to_le64(off
+ len
);
2836 rc
= SMB2_set_eof(xid
, tcon
, cfile
->fid
.persistent_fid
,
2837 cfile
->fid
.volatile_fid
, cfile
->pid
,
2843 trace_smb3_falloc_err(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2844 tcon
->ses
->Suid
, off
, len
, rc
);
2846 trace_smb3_falloc_done(xid
, cfile
->fid
.persistent_fid
, tcon
->tid
,
2847 tcon
->ses
->Suid
, off
, len
);
2854 static long smb3_fallocate(struct file
*file
, struct cifs_tcon
*tcon
, int mode
,
2855 loff_t off
, loff_t len
)
2857 /* KEEP_SIZE already checked for by do_fallocate */
2858 if (mode
& FALLOC_FL_PUNCH_HOLE
)
2859 return smb3_punch_hole(file
, tcon
, off
, len
);
2860 else if (mode
& FALLOC_FL_ZERO_RANGE
) {
2861 if (mode
& FALLOC_FL_KEEP_SIZE
)
2862 return smb3_zero_range(file
, tcon
, off
, len
, true);
2863 return smb3_zero_range(file
, tcon
, off
, len
, false);
2864 } else if (mode
== FALLOC_FL_KEEP_SIZE
)
2865 return smb3_simple_falloc(file
, tcon
, off
, len
, true);
2867 return smb3_simple_falloc(file
, tcon
, off
, len
, false);
2873 smb2_downgrade_oplock(struct TCP_Server_Info
*server
,
2874 struct cifsInodeInfo
*cinode
, bool set_level2
)
2877 server
->ops
->set_oplock_level(cinode
, SMB2_OPLOCK_LEVEL_II
,
2880 server
->ops
->set_oplock_level(cinode
, 0, 0, NULL
);
2884 smb21_downgrade_oplock(struct TCP_Server_Info
*server
,
2885 struct cifsInodeInfo
*cinode
, bool set_level2
)
2887 server
->ops
->set_oplock_level(cinode
,
2888 set_level2
? SMB2_LEASE_READ_CACHING_HE
:
2893 smb2_set_oplock_level(struct cifsInodeInfo
*cinode
, __u32 oplock
,
2894 unsigned int epoch
, bool *purge_cache
)
2897 if (oplock
== SMB2_OPLOCK_LEVEL_NOCHANGE
)
2899 if (oplock
== SMB2_OPLOCK_LEVEL_BATCH
) {
2900 cinode
->oplock
= CIFS_CACHE_RHW_FLG
;
2901 cifs_dbg(FYI
, "Batch Oplock granted on inode %p\n",
2902 &cinode
->vfs_inode
);
2903 } else if (oplock
== SMB2_OPLOCK_LEVEL_EXCLUSIVE
) {
2904 cinode
->oplock
= CIFS_CACHE_RW_FLG
;
2905 cifs_dbg(FYI
, "Exclusive Oplock granted on inode %p\n",
2906 &cinode
->vfs_inode
);
2907 } else if (oplock
== SMB2_OPLOCK_LEVEL_II
) {
2908 cinode
->oplock
= CIFS_CACHE_READ_FLG
;
2909 cifs_dbg(FYI
, "Level II Oplock granted on inode %p\n",
2910 &cinode
->vfs_inode
);
2916 smb21_set_oplock_level(struct cifsInodeInfo
*cinode
, __u32 oplock
,
2917 unsigned int epoch
, bool *purge_cache
)
2919 char message
[5] = {0};
2922 if (oplock
== SMB2_OPLOCK_LEVEL_NOCHANGE
)
2926 if (oplock
& SMB2_LEASE_READ_CACHING_HE
) {
2927 cinode
->oplock
|= CIFS_CACHE_READ_FLG
;
2928 strcat(message
, "R");
2930 if (oplock
& SMB2_LEASE_HANDLE_CACHING_HE
) {
2931 cinode
->oplock
|= CIFS_CACHE_HANDLE_FLG
;
2932 strcat(message
, "H");
2934 if (oplock
& SMB2_LEASE_WRITE_CACHING_HE
) {
2935 cinode
->oplock
|= CIFS_CACHE_WRITE_FLG
;
2936 strcat(message
, "W");
2938 if (!cinode
->oplock
)
2939 strcat(message
, "None");
2940 cifs_dbg(FYI
, "%s Lease granted on inode %p\n", message
,
2941 &cinode
->vfs_inode
);
2945 smb3_set_oplock_level(struct cifsInodeInfo
*cinode
, __u32 oplock
,
2946 unsigned int epoch
, bool *purge_cache
)
2948 unsigned int old_oplock
= cinode
->oplock
;
2950 smb21_set_oplock_level(cinode
, oplock
, epoch
, purge_cache
);
2953 *purge_cache
= false;
2954 if (old_oplock
== CIFS_CACHE_READ_FLG
) {
2955 if (cinode
->oplock
== CIFS_CACHE_READ_FLG
&&
2956 (epoch
- cinode
->epoch
> 0))
2957 *purge_cache
= true;
2958 else if (cinode
->oplock
== CIFS_CACHE_RH_FLG
&&
2959 (epoch
- cinode
->epoch
> 1))
2960 *purge_cache
= true;
2961 else if (cinode
->oplock
== CIFS_CACHE_RHW_FLG
&&
2962 (epoch
- cinode
->epoch
> 1))
2963 *purge_cache
= true;
2964 else if (cinode
->oplock
== 0 &&
2965 (epoch
- cinode
->epoch
> 0))
2966 *purge_cache
= true;
2967 } else if (old_oplock
== CIFS_CACHE_RH_FLG
) {
2968 if (cinode
->oplock
== CIFS_CACHE_RH_FLG
&&
2969 (epoch
- cinode
->epoch
> 0))
2970 *purge_cache
= true;
2971 else if (cinode
->oplock
== CIFS_CACHE_RHW_FLG
&&
2972 (epoch
- cinode
->epoch
> 1))
2973 *purge_cache
= true;
2975 cinode
->epoch
= epoch
;
2980 smb2_is_read_op(__u32 oplock
)
2982 return oplock
== SMB2_OPLOCK_LEVEL_II
;
2986 smb21_is_read_op(__u32 oplock
)
2988 return (oplock
& SMB2_LEASE_READ_CACHING_HE
) &&
2989 !(oplock
& SMB2_LEASE_WRITE_CACHING_HE
);
2993 map_oplock_to_lease(u8 oplock
)
2995 if (oplock
== SMB2_OPLOCK_LEVEL_EXCLUSIVE
)
2996 return SMB2_LEASE_WRITE_CACHING
| SMB2_LEASE_READ_CACHING
;
2997 else if (oplock
== SMB2_OPLOCK_LEVEL_II
)
2998 return SMB2_LEASE_READ_CACHING
;
2999 else if (oplock
== SMB2_OPLOCK_LEVEL_BATCH
)
3000 return SMB2_LEASE_HANDLE_CACHING
| SMB2_LEASE_READ_CACHING
|
3001 SMB2_LEASE_WRITE_CACHING
;
3006 smb2_create_lease_buf(u8
*lease_key
, u8 oplock
)
3008 struct create_lease
*buf
;
3010 buf
= kzalloc(sizeof(struct create_lease
), GFP_KERNEL
);
3014 memcpy(&buf
->lcontext
.LeaseKey
, lease_key
, SMB2_LEASE_KEY_SIZE
);
3015 buf
->lcontext
.LeaseState
= map_oplock_to_lease(oplock
);
3017 buf
->ccontext
.DataOffset
= cpu_to_le16(offsetof
3018 (struct create_lease
, lcontext
));
3019 buf
->ccontext
.DataLength
= cpu_to_le32(sizeof(struct lease_context
));
3020 buf
->ccontext
.NameOffset
= cpu_to_le16(offsetof
3021 (struct create_lease
, Name
));
3022 buf
->ccontext
.NameLength
= cpu_to_le16(4);
3023 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
3032 smb3_create_lease_buf(u8
*lease_key
, u8 oplock
)
3034 struct create_lease_v2
*buf
;
3036 buf
= kzalloc(sizeof(struct create_lease_v2
), GFP_KERNEL
);
3040 memcpy(&buf
->lcontext
.LeaseKey
, lease_key
, SMB2_LEASE_KEY_SIZE
);
3041 buf
->lcontext
.LeaseState
= map_oplock_to_lease(oplock
);
3043 buf
->ccontext
.DataOffset
= cpu_to_le16(offsetof
3044 (struct create_lease_v2
, lcontext
));
3045 buf
->ccontext
.DataLength
= cpu_to_le32(sizeof(struct lease_context_v2
));
3046 buf
->ccontext
.NameOffset
= cpu_to_le16(offsetof
3047 (struct create_lease_v2
, Name
));
3048 buf
->ccontext
.NameLength
= cpu_to_le16(4);
3049 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
3058 smb2_parse_lease_buf(void *buf
, unsigned int *epoch
, char *lease_key
)
3060 struct create_lease
*lc
= (struct create_lease
*)buf
;
3062 *epoch
= 0; /* not used */
3063 if (lc
->lcontext
.LeaseFlags
& SMB2_LEASE_FLAG_BREAK_IN_PROGRESS
)
3064 return SMB2_OPLOCK_LEVEL_NOCHANGE
;
3065 return le32_to_cpu(lc
->lcontext
.LeaseState
);
3069 smb3_parse_lease_buf(void *buf
, unsigned int *epoch
, char *lease_key
)
3071 struct create_lease_v2
*lc
= (struct create_lease_v2
*)buf
;
3073 *epoch
= le16_to_cpu(lc
->lcontext
.Epoch
);
3074 if (lc
->lcontext
.LeaseFlags
& SMB2_LEASE_FLAG_BREAK_IN_PROGRESS
)
3075 return SMB2_OPLOCK_LEVEL_NOCHANGE
;
3077 memcpy(lease_key
, &lc
->lcontext
.LeaseKey
, SMB2_LEASE_KEY_SIZE
);
3078 return le32_to_cpu(lc
->lcontext
.LeaseState
);
3082 smb2_wp_retry_size(struct inode
*inode
)
3084 return min_t(unsigned int, CIFS_SB(inode
->i_sb
)->wsize
,
3085 SMB2_MAX_BUFFER_SIZE
);
3089 smb2_dir_needs_close(struct cifsFileInfo
*cfile
)
3091 return !cfile
->invalidHandle
;
3095 fill_transform_hdr(struct smb2_transform_hdr
*tr_hdr
, unsigned int orig_len
,
3096 struct smb_rqst
*old_rq
)
3098 struct smb2_sync_hdr
*shdr
=
3099 (struct smb2_sync_hdr
*)old_rq
->rq_iov
[0].iov_base
;
3101 memset(tr_hdr
, 0, sizeof(struct smb2_transform_hdr
));
3102 tr_hdr
->ProtocolId
= SMB2_TRANSFORM_PROTO_NUM
;
3103 tr_hdr
->OriginalMessageSize
= cpu_to_le32(orig_len
);
3104 tr_hdr
->Flags
= cpu_to_le16(0x01);
3105 get_random_bytes(&tr_hdr
->Nonce
, SMB3_AES128CMM_NONCE
);
3106 memcpy(&tr_hdr
->SessionId
, &shdr
->SessionId
, 8);
3109 /* We can not use the normal sg_set_buf() as we will sometimes pass a
3110 * stack object as buf.
3112 static inline void smb2_sg_set_buf(struct scatterlist
*sg
, const void *buf
,
3113 unsigned int buflen
)
3115 sg_set_page(sg
, virt_to_page(buf
), buflen
, offset_in_page(buf
));
3118 /* Assumes the first rqst has a transform header as the first iov.
3120 * rqst[0].rq_iov[0] is transform header
3121 * rqst[0].rq_iov[1+] data to be encrypted/decrypted
3122 * rqst[1+].rq_iov[0+] data to be encrypted/decrypted
3124 static struct scatterlist
*
3125 init_sg(int num_rqst
, struct smb_rqst
*rqst
, u8
*sign
)
3127 unsigned int sg_len
;
3128 struct scatterlist
*sg
;
3131 unsigned int idx
= 0;
3135 for (i
= 0; i
< num_rqst
; i
++)
3136 sg_len
+= rqst
[i
].rq_nvec
+ rqst
[i
].rq_npages
;
3138 sg
= kmalloc_array(sg_len
, sizeof(struct scatterlist
), GFP_KERNEL
);
3142 sg_init_table(sg
, sg_len
);
3143 for (i
= 0; i
< num_rqst
; i
++) {
3144 for (j
= 0; j
< rqst
[i
].rq_nvec
; j
++) {
3146 * The first rqst has a transform header where the
3147 * first 20 bytes are not part of the encrypted blob
3149 skip
= (i
== 0) && (j
== 0) ? 20 : 0;
3150 smb2_sg_set_buf(&sg
[idx
++],
3151 rqst
[i
].rq_iov
[j
].iov_base
+ skip
,
3152 rqst
[i
].rq_iov
[j
].iov_len
- skip
);
3155 for (j
= 0; j
< rqst
[i
].rq_npages
; j
++) {
3156 unsigned int len
, offset
;
3158 rqst_page_get_length(&rqst
[i
], j
, &len
, &offset
);
3159 sg_set_page(&sg
[idx
++], rqst
[i
].rq_pages
[j
], len
, offset
);
3162 smb2_sg_set_buf(&sg
[idx
], sign
, SMB2_SIGNATURE_SIZE
);
3167 smb2_get_enc_key(struct TCP_Server_Info
*server
, __u64 ses_id
, int enc
, u8
*key
)
3169 struct cifs_ses
*ses
;
3172 spin_lock(&cifs_tcp_ses_lock
);
3173 list_for_each_entry(ses
, &server
->smb_ses_list
, smb_ses_list
) {
3174 if (ses
->Suid
!= ses_id
)
3176 ses_enc_key
= enc
? ses
->smb3encryptionkey
:
3177 ses
->smb3decryptionkey
;
3178 memcpy(key
, ses_enc_key
, SMB3_SIGN_KEY_SIZE
);
3179 spin_unlock(&cifs_tcp_ses_lock
);
3182 spin_unlock(&cifs_tcp_ses_lock
);
3187 * Encrypt or decrypt @rqst message. @rqst[0] has the following format:
3188 * iov[0] - transform header (associate data),
3189 * iov[1-N] - SMB2 header and pages - data to encrypt.
3190 * On success return encrypted data in iov[1-N] and pages, leave iov[0]
3194 crypt_message(struct TCP_Server_Info
*server
, int num_rqst
,
3195 struct smb_rqst
*rqst
, int enc
)
3197 struct smb2_transform_hdr
*tr_hdr
=
3198 (struct smb2_transform_hdr
*)rqst
[0].rq_iov
[0].iov_base
;
3199 unsigned int assoc_data_len
= sizeof(struct smb2_transform_hdr
) - 20;
3201 struct scatterlist
*sg
;
3202 u8 sign
[SMB2_SIGNATURE_SIZE
] = {};
3203 u8 key
[SMB3_SIGN_KEY_SIZE
];
3204 struct aead_request
*req
;
3206 unsigned int iv_len
;
3207 DECLARE_CRYPTO_WAIT(wait
);
3208 struct crypto_aead
*tfm
;
3209 unsigned int crypt_len
= le32_to_cpu(tr_hdr
->OriginalMessageSize
);
3211 rc
= smb2_get_enc_key(server
, tr_hdr
->SessionId
, enc
, key
);
3213 cifs_dbg(VFS
, "%s: Could not get %scryption key\n", __func__
,
3218 rc
= smb3_crypto_aead_allocate(server
);
3220 cifs_dbg(VFS
, "%s: crypto alloc failed\n", __func__
);
3224 tfm
= enc
? server
->secmech
.ccmaesencrypt
:
3225 server
->secmech
.ccmaesdecrypt
;
3226 rc
= crypto_aead_setkey(tfm
, key
, SMB3_SIGN_KEY_SIZE
);
3228 cifs_dbg(VFS
, "%s: Failed to set aead key %d\n", __func__
, rc
);
3232 rc
= crypto_aead_setauthsize(tfm
, SMB2_SIGNATURE_SIZE
);
3234 cifs_dbg(VFS
, "%s: Failed to set authsize %d\n", __func__
, rc
);
3238 req
= aead_request_alloc(tfm
, GFP_KERNEL
);
3240 cifs_dbg(VFS
, "%s: Failed to alloc aead request", __func__
);
3245 memcpy(sign
, &tr_hdr
->Signature
, SMB2_SIGNATURE_SIZE
);
3246 crypt_len
+= SMB2_SIGNATURE_SIZE
;
3249 sg
= init_sg(num_rqst
, rqst
, sign
);
3251 cifs_dbg(VFS
, "%s: Failed to init sg", __func__
);
3256 iv_len
= crypto_aead_ivsize(tfm
);
3257 iv
= kzalloc(iv_len
, GFP_KERNEL
);
3259 cifs_dbg(VFS
, "%s: Failed to alloc IV", __func__
);
3264 memcpy(iv
+ 1, (char *)tr_hdr
->Nonce
, SMB3_AES128CMM_NONCE
);
3266 aead_request_set_crypt(req
, sg
, sg
, crypt_len
, iv
);
3267 aead_request_set_ad(req
, assoc_data_len
);
3269 aead_request_set_callback(req
, CRYPTO_TFM_REQ_MAY_BACKLOG
,
3270 crypto_req_done
, &wait
);
3272 rc
= crypto_wait_req(enc
? crypto_aead_encrypt(req
)
3273 : crypto_aead_decrypt(req
), &wait
);
3276 memcpy(&tr_hdr
->Signature
, sign
, SMB2_SIGNATURE_SIZE
);
3287 smb3_free_compound_rqst(int num_rqst
, struct smb_rqst
*rqst
)
3291 for (i
= 0; i
< num_rqst
; i
++) {
3292 if (rqst
[i
].rq_pages
) {
3293 for (j
= rqst
[i
].rq_npages
- 1; j
>= 0; j
--)
3294 put_page(rqst
[i
].rq_pages
[j
]);
3295 kfree(rqst
[i
].rq_pages
);
3301 * This function will initialize new_rq and encrypt the content.
3302 * The first entry, new_rq[0], only contains a single iov which contains
3303 * a smb2_transform_hdr and is pre-allocated by the caller.
3304 * This function then populates new_rq[1+] with the content from olq_rq[0+].
3306 * The end result is an array of smb_rqst structures where the first structure
3307 * only contains a single iov for the transform header which we then can pass
3308 * to crypt_message().
3310 * new_rq[0].rq_iov[0] : smb2_transform_hdr pre-allocated by the caller
3311 * new_rq[1+].rq_iov[*] == old_rq[0+].rq_iov[*] : SMB2/3 requests
3314 smb3_init_transform_rq(struct TCP_Server_Info
*server
, int num_rqst
,
3315 struct smb_rqst
*new_rq
, struct smb_rqst
*old_rq
)
3317 struct page
**pages
;
3318 struct smb2_transform_hdr
*tr_hdr
= new_rq
[0].rq_iov
[0].iov_base
;
3319 unsigned int npages
;
3320 unsigned int orig_len
= 0;
3324 for (i
= 1; i
< num_rqst
; i
++) {
3325 npages
= old_rq
[i
- 1].rq_npages
;
3326 pages
= kmalloc_array(npages
, sizeof(struct page
*),
3331 new_rq
[i
].rq_pages
= pages
;
3332 new_rq
[i
].rq_npages
= npages
;
3333 new_rq
[i
].rq_offset
= old_rq
[i
- 1].rq_offset
;
3334 new_rq
[i
].rq_pagesz
= old_rq
[i
- 1].rq_pagesz
;
3335 new_rq
[i
].rq_tailsz
= old_rq
[i
- 1].rq_tailsz
;
3336 new_rq
[i
].rq_iov
= old_rq
[i
- 1].rq_iov
;
3337 new_rq
[i
].rq_nvec
= old_rq
[i
- 1].rq_nvec
;
3339 orig_len
+= smb_rqst_len(server
, &old_rq
[i
- 1]);
3341 for (j
= 0; j
< npages
; j
++) {
3342 pages
[j
] = alloc_page(GFP_KERNEL
|__GFP_HIGHMEM
);
3347 /* copy pages form the old */
3348 for (j
= 0; j
< npages
; j
++) {
3350 unsigned int offset
, len
;
3352 rqst_page_get_length(&new_rq
[i
], j
, &len
, &offset
);
3354 dst
= (char *) kmap(new_rq
[i
].rq_pages
[j
]) + offset
;
3355 src
= (char *) kmap(old_rq
[i
- 1].rq_pages
[j
]) + offset
;
3357 memcpy(dst
, src
, len
);
3358 kunmap(new_rq
[i
].rq_pages
[j
]);
3359 kunmap(old_rq
[i
- 1].rq_pages
[j
]);
3363 /* fill the 1st iov with a transform header */
3364 fill_transform_hdr(tr_hdr
, orig_len
, old_rq
);
3366 rc
= crypt_message(server
, num_rqst
, new_rq
, 1);
3367 cifs_dbg(FYI
, "encrypt message returned %d", rc
);
3374 smb3_free_compound_rqst(num_rqst
- 1, &new_rq
[1]);
3379 smb3_is_transform_hdr(void *buf
)
3381 struct smb2_transform_hdr
*trhdr
= buf
;
3383 return trhdr
->ProtocolId
== SMB2_TRANSFORM_PROTO_NUM
;
3387 decrypt_raw_data(struct TCP_Server_Info
*server
, char *buf
,
3388 unsigned int buf_data_size
, struct page
**pages
,
3389 unsigned int npages
, unsigned int page_data_size
)
3392 struct smb_rqst rqst
= {NULL
};
3395 iov
[0].iov_base
= buf
;
3396 iov
[0].iov_len
= sizeof(struct smb2_transform_hdr
);
3397 iov
[1].iov_base
= buf
+ sizeof(struct smb2_transform_hdr
);
3398 iov
[1].iov_len
= buf_data_size
;
3402 rqst
.rq_pages
= pages
;
3403 rqst
.rq_npages
= npages
;
3404 rqst
.rq_pagesz
= PAGE_SIZE
;
3405 rqst
.rq_tailsz
= (page_data_size
% PAGE_SIZE
) ? : PAGE_SIZE
;
3407 rc
= crypt_message(server
, 1, &rqst
, 0);
3408 cifs_dbg(FYI
, "decrypt message returned %d\n", rc
);
3413 memmove(buf
, iov
[1].iov_base
, buf_data_size
);
3415 server
->total_read
= buf_data_size
+ page_data_size
;
3421 read_data_into_pages(struct TCP_Server_Info
*server
, struct page
**pages
,
3422 unsigned int npages
, unsigned int len
)
3427 for (i
= 0; i
< npages
; i
++) {
3428 struct page
*page
= pages
[i
];
3432 if (len
>= PAGE_SIZE
) {
3433 /* enough data to fill the page */
3437 zero_user(page
, len
, PAGE_SIZE
- len
);
3440 length
= cifs_read_page_from_socket(server
, page
, 0, n
);
3443 server
->total_read
+= length
;
3450 init_read_bvec(struct page
**pages
, unsigned int npages
, unsigned int data_size
,
3451 unsigned int cur_off
, struct bio_vec
**page_vec
)
3453 struct bio_vec
*bvec
;
3456 bvec
= kcalloc(npages
, sizeof(struct bio_vec
), GFP_KERNEL
);
3460 for (i
= 0; i
< npages
; i
++) {
3461 bvec
[i
].bv_page
= pages
[i
];
3462 bvec
[i
].bv_offset
= (i
== 0) ? cur_off
: 0;
3463 bvec
[i
].bv_len
= min_t(unsigned int, PAGE_SIZE
, data_size
);
3464 data_size
-= bvec
[i
].bv_len
;
3467 if (data_size
!= 0) {
3468 cifs_dbg(VFS
, "%s: something went wrong\n", __func__
);
3478 handle_read_data(struct TCP_Server_Info
*server
, struct mid_q_entry
*mid
,
3479 char *buf
, unsigned int buf_len
, struct page
**pages
,
3480 unsigned int npages
, unsigned int page_data_size
)
3482 unsigned int data_offset
;
3483 unsigned int data_len
;
3484 unsigned int cur_off
;
3485 unsigned int cur_page_idx
;
3486 unsigned int pad_len
;
3487 struct cifs_readdata
*rdata
= mid
->callback_data
;
3488 struct smb2_sync_hdr
*shdr
= (struct smb2_sync_hdr
*)buf
;
3489 struct bio_vec
*bvec
= NULL
;
3490 struct iov_iter iter
;
3493 bool use_rdma_mr
= false;
3495 if (shdr
->Command
!= SMB2_READ
) {
3496 cifs_dbg(VFS
, "only big read responses are supported\n");
3500 if (server
->ops
->is_session_expired
&&
3501 server
->ops
->is_session_expired(buf
)) {
3502 cifs_reconnect(server
);
3503 wake_up(&server
->response_q
);
3507 if (server
->ops
->is_status_pending
&&
3508 server
->ops
->is_status_pending(buf
, server
))
3511 /* set up first two iov to get credits */
3512 rdata
->iov
[0].iov_base
= buf
;
3513 rdata
->iov
[0].iov_len
= 0;
3514 rdata
->iov
[1].iov_base
= buf
;
3515 rdata
->iov
[1].iov_len
=
3516 min_t(unsigned int, buf_len
, server
->vals
->read_rsp_size
);
3517 cifs_dbg(FYI
, "0: iov_base=%p iov_len=%zu\n",
3518 rdata
->iov
[0].iov_base
, rdata
->iov
[0].iov_len
);
3519 cifs_dbg(FYI
, "1: iov_base=%p iov_len=%zu\n",
3520 rdata
->iov
[1].iov_base
, rdata
->iov
[1].iov_len
);
3522 rdata
->result
= server
->ops
->map_error(buf
, true);
3523 if (rdata
->result
!= 0) {
3524 cifs_dbg(FYI
, "%s: server returned error %d\n",
3525 __func__
, rdata
->result
);
3526 /* normal error on read response */
3527 dequeue_mid(mid
, false);
3531 data_offset
= server
->ops
->read_data_offset(buf
);
3532 #ifdef CONFIG_CIFS_SMB_DIRECT
3533 use_rdma_mr
= rdata
->mr
;
3535 data_len
= server
->ops
->read_data_length(buf
, use_rdma_mr
);
3537 if (data_offset
< server
->vals
->read_rsp_size
) {
3539 * win2k8 sometimes sends an offset of 0 when the read
3540 * is beyond the EOF. Treat it as if the data starts just after
3543 cifs_dbg(FYI
, "%s: data offset (%u) inside read response header\n",
3544 __func__
, data_offset
);
3545 data_offset
= server
->vals
->read_rsp_size
;
3546 } else if (data_offset
> MAX_CIFS_SMALL_BUFFER_SIZE
) {
3547 /* data_offset is beyond the end of smallbuf */
3548 cifs_dbg(FYI
, "%s: data offset (%u) beyond end of smallbuf\n",
3549 __func__
, data_offset
);
3550 rdata
->result
= -EIO
;
3551 dequeue_mid(mid
, rdata
->result
);
3555 pad_len
= data_offset
- server
->vals
->read_rsp_size
;
3557 if (buf_len
<= data_offset
) {
3558 /* read response payload is in pages */
3559 cur_page_idx
= pad_len
/ PAGE_SIZE
;
3560 cur_off
= pad_len
% PAGE_SIZE
;
3562 if (cur_page_idx
!= 0) {
3563 /* data offset is beyond the 1st page of response */
3564 cifs_dbg(FYI
, "%s: data offset (%u) beyond 1st page of response\n",
3565 __func__
, data_offset
);
3566 rdata
->result
= -EIO
;
3567 dequeue_mid(mid
, rdata
->result
);
3571 if (data_len
> page_data_size
- pad_len
) {
3572 /* data_len is corrupt -- discard frame */
3573 rdata
->result
= -EIO
;
3574 dequeue_mid(mid
, rdata
->result
);
3578 rdata
->result
= init_read_bvec(pages
, npages
, page_data_size
,
3580 if (rdata
->result
!= 0) {
3581 dequeue_mid(mid
, rdata
->result
);
3585 iov_iter_bvec(&iter
, WRITE
, bvec
, npages
, data_len
);
3586 } else if (buf_len
>= data_offset
+ data_len
) {
3587 /* read response payload is in buf */
3588 WARN_ONCE(npages
> 0, "read data can be either in buf or in pages");
3589 iov
.iov_base
= buf
+ data_offset
;
3590 iov
.iov_len
= data_len
;
3591 iov_iter_kvec(&iter
, WRITE
, &iov
, 1, data_len
);
3593 /* read response payload cannot be in both buf and pages */
3594 WARN_ONCE(1, "buf can not contain only a part of read data");
3595 rdata
->result
= -EIO
;
3596 dequeue_mid(mid
, rdata
->result
);
3600 length
= rdata
->copy_into_pages(server
, rdata
, &iter
);
3607 dequeue_mid(mid
, false);
3612 receive_encrypted_read(struct TCP_Server_Info
*server
, struct mid_q_entry
**mid
)
3614 char *buf
= server
->smallbuf
;
3615 struct smb2_transform_hdr
*tr_hdr
= (struct smb2_transform_hdr
*)buf
;
3616 unsigned int npages
;
3617 struct page
**pages
;
3619 unsigned int buflen
= server
->pdu_size
;
3623 len
= min_t(unsigned int, buflen
, server
->vals
->read_rsp_size
+
3624 sizeof(struct smb2_transform_hdr
)) - HEADER_SIZE(server
) + 1;
3626 rc
= cifs_read_from_socket(server
, buf
+ HEADER_SIZE(server
) - 1, len
);
3629 server
->total_read
+= rc
;
3631 len
= le32_to_cpu(tr_hdr
->OriginalMessageSize
) -
3632 server
->vals
->read_rsp_size
;
3633 npages
= DIV_ROUND_UP(len
, PAGE_SIZE
);
3635 pages
= kmalloc_array(npages
, sizeof(struct page
*), GFP_KERNEL
);
3641 for (; i
< npages
; i
++) {
3642 pages
[i
] = alloc_page(GFP_KERNEL
|__GFP_HIGHMEM
);
3649 /* read read data into pages */
3650 rc
= read_data_into_pages(server
, pages
, npages
, len
);
3654 rc
= cifs_discard_remaining_data(server
);
3658 rc
= decrypt_raw_data(server
, buf
, server
->vals
->read_rsp_size
,
3659 pages
, npages
, len
);
3663 *mid
= smb2_find_mid(server
, buf
);
3665 cifs_dbg(FYI
, "mid not found\n");
3667 cifs_dbg(FYI
, "mid found\n");
3668 (*mid
)->decrypted
= true;
3669 rc
= handle_read_data(server
, *mid
, buf
,
3670 server
->vals
->read_rsp_size
,
3671 pages
, npages
, len
);
3675 for (i
= i
- 1; i
>= 0; i
--)
3680 cifs_discard_remaining_data(server
);
3685 receive_encrypted_standard(struct TCP_Server_Info
*server
,
3686 struct mid_q_entry
**mids
, char **bufs
,
3690 char *buf
= server
->smallbuf
;
3692 struct smb2_sync_hdr
*shdr
;
3693 unsigned int pdu_length
= server
->pdu_size
;
3694 unsigned int buf_size
;
3695 struct mid_q_entry
*mid_entry
;
3697 char *next_buffer
= NULL
;
3701 /* switch to large buffer if too big for a small one */
3702 if (pdu_length
> MAX_CIFS_SMALL_BUFFER_SIZE
) {
3703 server
->large_buf
= true;
3704 memcpy(server
->bigbuf
, buf
, server
->total_read
);
3705 buf
= server
->bigbuf
;
3708 /* now read the rest */
3709 length
= cifs_read_from_socket(server
, buf
+ HEADER_SIZE(server
) - 1,
3710 pdu_length
- HEADER_SIZE(server
) + 1);
3713 server
->total_read
+= length
;
3715 buf_size
= pdu_length
- sizeof(struct smb2_transform_hdr
);
3716 length
= decrypt_raw_data(server
, buf
, buf_size
, NULL
, 0, 0);
3720 next_is_large
= server
->large_buf
;
3722 shdr
= (struct smb2_sync_hdr
*)buf
;
3723 if (shdr
->NextCommand
) {
3724 if (next_is_large
) {
3725 tmpbuf
= server
->bigbuf
;
3726 next_buffer
= (char *)cifs_buf_get();
3728 tmpbuf
= server
->smallbuf
;
3729 next_buffer
= (char *)cifs_small_buf_get();
3732 tmpbuf
+ le32_to_cpu(shdr
->NextCommand
),
3733 pdu_length
- le32_to_cpu(shdr
->NextCommand
));
3736 mid_entry
= smb2_find_mid(server
, buf
);
3737 if (mid_entry
== NULL
)
3738 cifs_dbg(FYI
, "mid not found\n");
3740 cifs_dbg(FYI
, "mid found\n");
3741 mid_entry
->decrypted
= true;
3742 mid_entry
->resp_buf_size
= server
->pdu_size
;
3745 if (*num_mids
>= MAX_COMPOUND
) {
3746 cifs_dbg(VFS
, "too many PDUs in compound\n");
3749 bufs
[*num_mids
] = buf
;
3750 mids
[(*num_mids
)++] = mid_entry
;
3752 if (mid_entry
&& mid_entry
->handle
)
3753 ret
= mid_entry
->handle(server
, mid_entry
);
3755 ret
= cifs_handle_standard(server
, mid_entry
);
3757 if (ret
== 0 && shdr
->NextCommand
) {
3758 pdu_length
-= le32_to_cpu(shdr
->NextCommand
);
3759 server
->large_buf
= next_is_large
;
3761 server
->bigbuf
= next_buffer
;
3763 server
->smallbuf
= next_buffer
;
3765 buf
+= le32_to_cpu(shdr
->NextCommand
);
3773 smb3_receive_transform(struct TCP_Server_Info
*server
,
3774 struct mid_q_entry
**mids
, char **bufs
, int *num_mids
)
3776 char *buf
= server
->smallbuf
;
3777 unsigned int pdu_length
= server
->pdu_size
;
3778 struct smb2_transform_hdr
*tr_hdr
= (struct smb2_transform_hdr
*)buf
;
3779 unsigned int orig_len
= le32_to_cpu(tr_hdr
->OriginalMessageSize
);
3781 if (pdu_length
< sizeof(struct smb2_transform_hdr
) +
3782 sizeof(struct smb2_sync_hdr
)) {
3783 cifs_dbg(VFS
, "Transform message is too small (%u)\n",
3785 cifs_reconnect(server
);
3786 wake_up(&server
->response_q
);
3787 return -ECONNABORTED
;
3790 if (pdu_length
< orig_len
+ sizeof(struct smb2_transform_hdr
)) {
3791 cifs_dbg(VFS
, "Transform message is broken\n");
3792 cifs_reconnect(server
);
3793 wake_up(&server
->response_q
);
3794 return -ECONNABORTED
;
3797 /* TODO: add support for compounds containing READ. */
3798 if (pdu_length
> CIFSMaxBufSize
+ MAX_HEADER_SIZE(server
)) {
3800 return receive_encrypted_read(server
, &mids
[0]);
3803 return receive_encrypted_standard(server
, mids
, bufs
, num_mids
);
3807 smb3_handle_read_data(struct TCP_Server_Info
*server
, struct mid_q_entry
*mid
)
3809 char *buf
= server
->large_buf
? server
->bigbuf
: server
->smallbuf
;
3811 return handle_read_data(server
, mid
, buf
, server
->pdu_size
,
3816 smb2_next_header(char *buf
)
3818 struct smb2_sync_hdr
*hdr
= (struct smb2_sync_hdr
*)buf
;
3819 struct smb2_transform_hdr
*t_hdr
= (struct smb2_transform_hdr
*)buf
;
3821 if (hdr
->ProtocolId
== SMB2_TRANSFORM_PROTO_NUM
)
3822 return sizeof(struct smb2_transform_hdr
) +
3823 le32_to_cpu(t_hdr
->OriginalMessageSize
);
3825 return le32_to_cpu(hdr
->NextCommand
);
3829 smb2_make_node(unsigned int xid
, struct inode
*inode
,
3830 struct dentry
*dentry
, struct cifs_tcon
*tcon
,
3831 char *full_path
, umode_t mode
, dev_t dev
)
3833 struct cifs_sb_info
*cifs_sb
= CIFS_SB(inode
->i_sb
);
3835 int create_options
= CREATE_NOT_DIR
| CREATE_OPTION_SPECIAL
;
3836 FILE_ALL_INFO
*buf
= NULL
;
3837 struct cifs_io_parms io_parms
;
3839 struct cifs_fid fid
;
3840 struct cifs_open_parms oparms
;
3841 unsigned int bytes_written
;
3842 struct win_dev
*pdev
;
3846 * Check if mounted with mount parm 'sfu' mount parm.
3847 * SFU emulation should work with all servers, but only
3848 * supports block and char device (no socket & fifo),
3849 * and was used by default in earlier versions of Windows
3851 if (!(cifs_sb
->mnt_cifs_flags
& CIFS_MOUNT_UNX_EMUL
))
3855 * TODO: Add ability to create instead via reparse point. Windows (e.g.
3856 * their current NFS server) uses this approach to expose special files
3857 * over SMB2/SMB3 and Samba will do this with SMB3.1.1 POSIX Extensions
3860 if (!S_ISCHR(mode
) && !S_ISBLK(mode
))
3863 cifs_dbg(FYI
, "sfu compat create special file\n");
3865 buf
= kmalloc(sizeof(FILE_ALL_INFO
), GFP_KERNEL
);
3871 if (backup_cred(cifs_sb
))
3872 create_options
|= CREATE_OPEN_BACKUP_INTENT
;
3875 oparms
.cifs_sb
= cifs_sb
;
3876 oparms
.desired_access
= GENERIC_WRITE
;
3877 oparms
.create_options
= create_options
;
3878 oparms
.disposition
= FILE_CREATE
;
3879 oparms
.path
= full_path
;
3881 oparms
.reconnect
= false;
3883 if (tcon
->ses
->server
->oplocks
)
3884 oplock
= REQ_OPLOCK
;
3887 rc
= tcon
->ses
->server
->ops
->open(xid
, &oparms
, &oplock
, buf
);
3892 * BB Do not bother to decode buf since no local inode yet to put
3893 * timestamps in, but we can reuse it safely.
3896 pdev
= (struct win_dev
*)buf
;
3897 io_parms
.pid
= current
->tgid
;
3898 io_parms
.tcon
= tcon
;
3899 io_parms
.offset
= 0;
3900 io_parms
.length
= sizeof(struct win_dev
);
3901 iov
[1].iov_base
= buf
;
3902 iov
[1].iov_len
= sizeof(struct win_dev
);
3903 if (S_ISCHR(mode
)) {
3904 memcpy(pdev
->type
, "IntxCHR", 8);
3905 pdev
->major
= cpu_to_le64(MAJOR(dev
));
3906 pdev
->minor
= cpu_to_le64(MINOR(dev
));
3907 rc
= tcon
->ses
->server
->ops
->sync_write(xid
, &fid
, &io_parms
,
3908 &bytes_written
, iov
, 1);
3909 } else if (S_ISBLK(mode
)) {
3910 memcpy(pdev
->type
, "IntxBLK", 8);
3911 pdev
->major
= cpu_to_le64(MAJOR(dev
));
3912 pdev
->minor
= cpu_to_le64(MINOR(dev
));
3913 rc
= tcon
->ses
->server
->ops
->sync_write(xid
, &fid
, &io_parms
,
3914 &bytes_written
, iov
, 1);
3916 tcon
->ses
->server
->ops
->close(xid
, tcon
, &fid
);
3919 /* FIXME: add code here to set EAs */
3926 struct smb_version_operations smb20_operations
= {
3927 .compare_fids
= smb2_compare_fids
,
3928 .setup_request
= smb2_setup_request
,
3929 .setup_async_request
= smb2_setup_async_request
,
3930 .check_receive
= smb2_check_receive
,
3931 .add_credits
= smb2_add_credits
,
3932 .set_credits
= smb2_set_credits
,
3933 .get_credits_field
= smb2_get_credits_field
,
3934 .get_credits
= smb2_get_credits
,
3935 .wait_mtu_credits
= cifs_wait_mtu_credits
,
3936 .get_next_mid
= smb2_get_next_mid
,
3937 .revert_current_mid
= smb2_revert_current_mid
,
3938 .read_data_offset
= smb2_read_data_offset
,
3939 .read_data_length
= smb2_read_data_length
,
3940 .map_error
= map_smb2_to_linux_error
,
3941 .find_mid
= smb2_find_mid
,
3942 .check_message
= smb2_check_message
,
3943 .dump_detail
= smb2_dump_detail
,
3944 .clear_stats
= smb2_clear_stats
,
3945 .print_stats
= smb2_print_stats
,
3946 .is_oplock_break
= smb2_is_valid_oplock_break
,
3947 .handle_cancelled_mid
= smb2_handle_cancelled_mid
,
3948 .downgrade_oplock
= smb2_downgrade_oplock
,
3949 .need_neg
= smb2_need_neg
,
3950 .negotiate
= smb2_negotiate
,
3951 .negotiate_wsize
= smb2_negotiate_wsize
,
3952 .negotiate_rsize
= smb2_negotiate_rsize
,
3953 .sess_setup
= SMB2_sess_setup
,
3954 .logoff
= SMB2_logoff
,
3955 .tree_connect
= SMB2_tcon
,
3956 .tree_disconnect
= SMB2_tdis
,
3957 .qfs_tcon
= smb2_qfs_tcon
,
3958 .is_path_accessible
= smb2_is_path_accessible
,
3959 .can_echo
= smb2_can_echo
,
3961 .query_path_info
= smb2_query_path_info
,
3962 .get_srv_inum
= smb2_get_srv_inum
,
3963 .query_file_info
= smb2_query_file_info
,
3964 .set_path_size
= smb2_set_path_size
,
3965 .set_file_size
= smb2_set_file_size
,
3966 .set_file_info
= smb2_set_file_info
,
3967 .set_compression
= smb2_set_compression
,
3968 .mkdir
= smb2_mkdir
,
3969 .mkdir_setinfo
= smb2_mkdir_setinfo
,
3970 .rmdir
= smb2_rmdir
,
3971 .unlink
= smb2_unlink
,
3972 .rename
= smb2_rename_path
,
3973 .create_hardlink
= smb2_create_hardlink
,
3974 .query_symlink
= smb2_query_symlink
,
3975 .query_mf_symlink
= smb3_query_mf_symlink
,
3976 .create_mf_symlink
= smb3_create_mf_symlink
,
3977 .open
= smb2_open_file
,
3978 .set_fid
= smb2_set_fid
,
3979 .close
= smb2_close_file
,
3980 .flush
= smb2_flush_file
,
3981 .async_readv
= smb2_async_readv
,
3982 .async_writev
= smb2_async_writev
,
3983 .sync_read
= smb2_sync_read
,
3984 .sync_write
= smb2_sync_write
,
3985 .query_dir_first
= smb2_query_dir_first
,
3986 .query_dir_next
= smb2_query_dir_next
,
3987 .close_dir
= smb2_close_dir
,
3988 .calc_smb_size
= smb2_calc_size
,
3989 .is_status_pending
= smb2_is_status_pending
,
3990 .is_session_expired
= smb2_is_session_expired
,
3991 .oplock_response
= smb2_oplock_response
,
3992 .queryfs
= smb2_queryfs
,
3993 .mand_lock
= smb2_mand_lock
,
3994 .mand_unlock_range
= smb2_unlock_range
,
3995 .push_mand_locks
= smb2_push_mandatory_locks
,
3996 .get_lease_key
= smb2_get_lease_key
,
3997 .set_lease_key
= smb2_set_lease_key
,
3998 .new_lease_key
= smb2_new_lease_key
,
3999 .calc_signature
= smb2_calc_signature
,
4000 .is_read_op
= smb2_is_read_op
,
4001 .set_oplock_level
= smb2_set_oplock_level
,
4002 .create_lease_buf
= smb2_create_lease_buf
,
4003 .parse_lease_buf
= smb2_parse_lease_buf
,
4004 .copychunk_range
= smb2_copychunk_range
,
4005 .wp_retry_size
= smb2_wp_retry_size
,
4006 .dir_needs_close
= smb2_dir_needs_close
,
4007 .get_dfs_refer
= smb2_get_dfs_refer
,
4008 .select_sectype
= smb2_select_sectype
,
4009 #ifdef CONFIG_CIFS_XATTR
4010 .query_all_EAs
= smb2_query_eas
,
4011 .set_EA
= smb2_set_ea
,
4012 #endif /* CIFS_XATTR */
4013 #ifdef CONFIG_CIFS_ACL
4014 .get_acl
= get_smb2_acl
,
4015 .get_acl_by_fid
= get_smb2_acl_by_fid
,
4016 .set_acl
= set_smb2_acl
,
4017 #endif /* CIFS_ACL */
4018 .next_header
= smb2_next_header
,
4019 .ioctl_query_info
= smb2_ioctl_query_info
,
4020 .make_node
= smb2_make_node
,
4023 struct smb_version_operations smb21_operations
= {
4024 .compare_fids
= smb2_compare_fids
,
4025 .setup_request
= smb2_setup_request
,
4026 .setup_async_request
= smb2_setup_async_request
,
4027 .check_receive
= smb2_check_receive
,
4028 .add_credits
= smb2_add_credits
,
4029 .set_credits
= smb2_set_credits
,
4030 .get_credits_field
= smb2_get_credits_field
,
4031 .get_credits
= smb2_get_credits
,
4032 .wait_mtu_credits
= smb2_wait_mtu_credits
,
4033 .adjust_credits
= smb2_adjust_credits
,
4034 .get_next_mid
= smb2_get_next_mid
,
4035 .revert_current_mid
= smb2_revert_current_mid
,
4036 .read_data_offset
= smb2_read_data_offset
,
4037 .read_data_length
= smb2_read_data_length
,
4038 .map_error
= map_smb2_to_linux_error
,
4039 .find_mid
= smb2_find_mid
,
4040 .check_message
= smb2_check_message
,
4041 .dump_detail
= smb2_dump_detail
,
4042 .clear_stats
= smb2_clear_stats
,
4043 .print_stats
= smb2_print_stats
,
4044 .is_oplock_break
= smb2_is_valid_oplock_break
,
4045 .handle_cancelled_mid
= smb2_handle_cancelled_mid
,
4046 .downgrade_oplock
= smb21_downgrade_oplock
,
4047 .need_neg
= smb2_need_neg
,
4048 .negotiate
= smb2_negotiate
,
4049 .negotiate_wsize
= smb2_negotiate_wsize
,
4050 .negotiate_rsize
= smb2_negotiate_rsize
,
4051 .sess_setup
= SMB2_sess_setup
,
4052 .logoff
= SMB2_logoff
,
4053 .tree_connect
= SMB2_tcon
,
4054 .tree_disconnect
= SMB2_tdis
,
4055 .qfs_tcon
= smb2_qfs_tcon
,
4056 .is_path_accessible
= smb2_is_path_accessible
,
4057 .can_echo
= smb2_can_echo
,
4059 .query_path_info
= smb2_query_path_info
,
4060 .get_srv_inum
= smb2_get_srv_inum
,
4061 .query_file_info
= smb2_query_file_info
,
4062 .set_path_size
= smb2_set_path_size
,
4063 .set_file_size
= smb2_set_file_size
,
4064 .set_file_info
= smb2_set_file_info
,
4065 .set_compression
= smb2_set_compression
,
4066 .mkdir
= smb2_mkdir
,
4067 .mkdir_setinfo
= smb2_mkdir_setinfo
,
4068 .rmdir
= smb2_rmdir
,
4069 .unlink
= smb2_unlink
,
4070 .rename
= smb2_rename_path
,
4071 .create_hardlink
= smb2_create_hardlink
,
4072 .query_symlink
= smb2_query_symlink
,
4073 .query_mf_symlink
= smb3_query_mf_symlink
,
4074 .create_mf_symlink
= smb3_create_mf_symlink
,
4075 .open
= smb2_open_file
,
4076 .set_fid
= smb2_set_fid
,
4077 .close
= smb2_close_file
,
4078 .flush
= smb2_flush_file
,
4079 .async_readv
= smb2_async_readv
,
4080 .async_writev
= smb2_async_writev
,
4081 .sync_read
= smb2_sync_read
,
4082 .sync_write
= smb2_sync_write
,
4083 .query_dir_first
= smb2_query_dir_first
,
4084 .query_dir_next
= smb2_query_dir_next
,
4085 .close_dir
= smb2_close_dir
,
4086 .calc_smb_size
= smb2_calc_size
,
4087 .is_status_pending
= smb2_is_status_pending
,
4088 .is_session_expired
= smb2_is_session_expired
,
4089 .oplock_response
= smb2_oplock_response
,
4090 .queryfs
= smb2_queryfs
,
4091 .mand_lock
= smb2_mand_lock
,
4092 .mand_unlock_range
= smb2_unlock_range
,
4093 .push_mand_locks
= smb2_push_mandatory_locks
,
4094 .get_lease_key
= smb2_get_lease_key
,
4095 .set_lease_key
= smb2_set_lease_key
,
4096 .new_lease_key
= smb2_new_lease_key
,
4097 .calc_signature
= smb2_calc_signature
,
4098 .is_read_op
= smb21_is_read_op
,
4099 .set_oplock_level
= smb21_set_oplock_level
,
4100 .create_lease_buf
= smb2_create_lease_buf
,
4101 .parse_lease_buf
= smb2_parse_lease_buf
,
4102 .copychunk_range
= smb2_copychunk_range
,
4103 .wp_retry_size
= smb2_wp_retry_size
,
4104 .dir_needs_close
= smb2_dir_needs_close
,
4105 .enum_snapshots
= smb3_enum_snapshots
,
4106 .get_dfs_refer
= smb2_get_dfs_refer
,
4107 .select_sectype
= smb2_select_sectype
,
4108 #ifdef CONFIG_CIFS_XATTR
4109 .query_all_EAs
= smb2_query_eas
,
4110 .set_EA
= smb2_set_ea
,
4111 #endif /* CIFS_XATTR */
4112 #ifdef CONFIG_CIFS_ACL
4113 .get_acl
= get_smb2_acl
,
4114 .get_acl_by_fid
= get_smb2_acl_by_fid
,
4115 .set_acl
= set_smb2_acl
,
4116 #endif /* CIFS_ACL */
4117 .next_header
= smb2_next_header
,
4118 .ioctl_query_info
= smb2_ioctl_query_info
,
4119 .make_node
= smb2_make_node
,
4122 struct smb_version_operations smb30_operations
= {
4123 .compare_fids
= smb2_compare_fids
,
4124 .setup_request
= smb2_setup_request
,
4125 .setup_async_request
= smb2_setup_async_request
,
4126 .check_receive
= smb2_check_receive
,
4127 .add_credits
= smb2_add_credits
,
4128 .set_credits
= smb2_set_credits
,
4129 .get_credits_field
= smb2_get_credits_field
,
4130 .get_credits
= smb2_get_credits
,
4131 .wait_mtu_credits
= smb2_wait_mtu_credits
,
4132 .adjust_credits
= smb2_adjust_credits
,
4133 .get_next_mid
= smb2_get_next_mid
,
4134 .revert_current_mid
= smb2_revert_current_mid
,
4135 .read_data_offset
= smb2_read_data_offset
,
4136 .read_data_length
= smb2_read_data_length
,
4137 .map_error
= map_smb2_to_linux_error
,
4138 .find_mid
= smb2_find_mid
,
4139 .check_message
= smb2_check_message
,
4140 .dump_detail
= smb2_dump_detail
,
4141 .clear_stats
= smb2_clear_stats
,
4142 .print_stats
= smb2_print_stats
,
4143 .dump_share_caps
= smb2_dump_share_caps
,
4144 .is_oplock_break
= smb2_is_valid_oplock_break
,
4145 .handle_cancelled_mid
= smb2_handle_cancelled_mid
,
4146 .downgrade_oplock
= smb21_downgrade_oplock
,
4147 .need_neg
= smb2_need_neg
,
4148 .negotiate
= smb2_negotiate
,
4149 .negotiate_wsize
= smb3_negotiate_wsize
,
4150 .negotiate_rsize
= smb3_negotiate_rsize
,
4151 .sess_setup
= SMB2_sess_setup
,
4152 .logoff
= SMB2_logoff
,
4153 .tree_connect
= SMB2_tcon
,
4154 .tree_disconnect
= SMB2_tdis
,
4155 .qfs_tcon
= smb3_qfs_tcon
,
4156 .is_path_accessible
= smb2_is_path_accessible
,
4157 .can_echo
= smb2_can_echo
,
4159 .query_path_info
= smb2_query_path_info
,
4160 .get_srv_inum
= smb2_get_srv_inum
,
4161 .query_file_info
= smb2_query_file_info
,
4162 .set_path_size
= smb2_set_path_size
,
4163 .set_file_size
= smb2_set_file_size
,
4164 .set_file_info
= smb2_set_file_info
,
4165 .set_compression
= smb2_set_compression
,
4166 .mkdir
= smb2_mkdir
,
4167 .mkdir_setinfo
= smb2_mkdir_setinfo
,
4168 .rmdir
= smb2_rmdir
,
4169 .unlink
= smb2_unlink
,
4170 .rename
= smb2_rename_path
,
4171 .create_hardlink
= smb2_create_hardlink
,
4172 .query_symlink
= smb2_query_symlink
,
4173 .query_mf_symlink
= smb3_query_mf_symlink
,
4174 .create_mf_symlink
= smb3_create_mf_symlink
,
4175 .open
= smb2_open_file
,
4176 .set_fid
= smb2_set_fid
,
4177 .close
= smb2_close_file
,
4178 .flush
= smb2_flush_file
,
4179 .async_readv
= smb2_async_readv
,
4180 .async_writev
= smb2_async_writev
,
4181 .sync_read
= smb2_sync_read
,
4182 .sync_write
= smb2_sync_write
,
4183 .query_dir_first
= smb2_query_dir_first
,
4184 .query_dir_next
= smb2_query_dir_next
,
4185 .close_dir
= smb2_close_dir
,
4186 .calc_smb_size
= smb2_calc_size
,
4187 .is_status_pending
= smb2_is_status_pending
,
4188 .is_session_expired
= smb2_is_session_expired
,
4189 .oplock_response
= smb2_oplock_response
,
4190 .queryfs
= smb2_queryfs
,
4191 .mand_lock
= smb2_mand_lock
,
4192 .mand_unlock_range
= smb2_unlock_range
,
4193 .push_mand_locks
= smb2_push_mandatory_locks
,
4194 .get_lease_key
= smb2_get_lease_key
,
4195 .set_lease_key
= smb2_set_lease_key
,
4196 .new_lease_key
= smb2_new_lease_key
,
4197 .generate_signingkey
= generate_smb30signingkey
,
4198 .calc_signature
= smb3_calc_signature
,
4199 .set_integrity
= smb3_set_integrity
,
4200 .is_read_op
= smb21_is_read_op
,
4201 .set_oplock_level
= smb3_set_oplock_level
,
4202 .create_lease_buf
= smb3_create_lease_buf
,
4203 .parse_lease_buf
= smb3_parse_lease_buf
,
4204 .copychunk_range
= smb2_copychunk_range
,
4205 .duplicate_extents
= smb2_duplicate_extents
,
4206 .validate_negotiate
= smb3_validate_negotiate
,
4207 .wp_retry_size
= smb2_wp_retry_size
,
4208 .dir_needs_close
= smb2_dir_needs_close
,
4209 .fallocate
= smb3_fallocate
,
4210 .enum_snapshots
= smb3_enum_snapshots
,
4211 .init_transform_rq
= smb3_init_transform_rq
,
4212 .is_transform_hdr
= smb3_is_transform_hdr
,
4213 .receive_transform
= smb3_receive_transform
,
4214 .get_dfs_refer
= smb2_get_dfs_refer
,
4215 .select_sectype
= smb2_select_sectype
,
4216 #ifdef CONFIG_CIFS_XATTR
4217 .query_all_EAs
= smb2_query_eas
,
4218 .set_EA
= smb2_set_ea
,
4219 #endif /* CIFS_XATTR */
4220 #ifdef CONFIG_CIFS_ACL
4221 .get_acl
= get_smb2_acl
,
4222 .get_acl_by_fid
= get_smb2_acl_by_fid
,
4223 .set_acl
= set_smb2_acl
,
4224 #endif /* CIFS_ACL */
4225 .next_header
= smb2_next_header
,
4226 .ioctl_query_info
= smb2_ioctl_query_info
,
4227 .make_node
= smb2_make_node
,
4230 struct smb_version_operations smb311_operations
= {
4231 .compare_fids
= smb2_compare_fids
,
4232 .setup_request
= smb2_setup_request
,
4233 .setup_async_request
= smb2_setup_async_request
,
4234 .check_receive
= smb2_check_receive
,
4235 .add_credits
= smb2_add_credits
,
4236 .set_credits
= smb2_set_credits
,
4237 .get_credits_field
= smb2_get_credits_field
,
4238 .get_credits
= smb2_get_credits
,
4239 .wait_mtu_credits
= smb2_wait_mtu_credits
,
4240 .adjust_credits
= smb2_adjust_credits
,
4241 .get_next_mid
= smb2_get_next_mid
,
4242 .revert_current_mid
= smb2_revert_current_mid
,
4243 .read_data_offset
= smb2_read_data_offset
,
4244 .read_data_length
= smb2_read_data_length
,
4245 .map_error
= map_smb2_to_linux_error
,
4246 .find_mid
= smb2_find_mid
,
4247 .check_message
= smb2_check_message
,
4248 .dump_detail
= smb2_dump_detail
,
4249 .clear_stats
= smb2_clear_stats
,
4250 .print_stats
= smb2_print_stats
,
4251 .dump_share_caps
= smb2_dump_share_caps
,
4252 .is_oplock_break
= smb2_is_valid_oplock_break
,
4253 .handle_cancelled_mid
= smb2_handle_cancelled_mid
,
4254 .downgrade_oplock
= smb21_downgrade_oplock
,
4255 .need_neg
= smb2_need_neg
,
4256 .negotiate
= smb2_negotiate
,
4257 .negotiate_wsize
= smb3_negotiate_wsize
,
4258 .negotiate_rsize
= smb3_negotiate_rsize
,
4259 .sess_setup
= SMB2_sess_setup
,
4260 .logoff
= SMB2_logoff
,
4261 .tree_connect
= SMB2_tcon
,
4262 .tree_disconnect
= SMB2_tdis
,
4263 .qfs_tcon
= smb3_qfs_tcon
,
4264 .is_path_accessible
= smb2_is_path_accessible
,
4265 .can_echo
= smb2_can_echo
,
4267 .query_path_info
= smb2_query_path_info
,
4268 .get_srv_inum
= smb2_get_srv_inum
,
4269 .query_file_info
= smb2_query_file_info
,
4270 .set_path_size
= smb2_set_path_size
,
4271 .set_file_size
= smb2_set_file_size
,
4272 .set_file_info
= smb2_set_file_info
,
4273 .set_compression
= smb2_set_compression
,
4274 .mkdir
= smb2_mkdir
,
4275 .mkdir_setinfo
= smb2_mkdir_setinfo
,
4276 .posix_mkdir
= smb311_posix_mkdir
,
4277 .rmdir
= smb2_rmdir
,
4278 .unlink
= smb2_unlink
,
4279 .rename
= smb2_rename_path
,
4280 .create_hardlink
= smb2_create_hardlink
,
4281 .query_symlink
= smb2_query_symlink
,
4282 .query_mf_symlink
= smb3_query_mf_symlink
,
4283 .create_mf_symlink
= smb3_create_mf_symlink
,
4284 .open
= smb2_open_file
,
4285 .set_fid
= smb2_set_fid
,
4286 .close
= smb2_close_file
,
4287 .flush
= smb2_flush_file
,
4288 .async_readv
= smb2_async_readv
,
4289 .async_writev
= smb2_async_writev
,
4290 .sync_read
= smb2_sync_read
,
4291 .sync_write
= smb2_sync_write
,
4292 .query_dir_first
= smb2_query_dir_first
,
4293 .query_dir_next
= smb2_query_dir_next
,
4294 .close_dir
= smb2_close_dir
,
4295 .calc_smb_size
= smb2_calc_size
,
4296 .is_status_pending
= smb2_is_status_pending
,
4297 .is_session_expired
= smb2_is_session_expired
,
4298 .oplock_response
= smb2_oplock_response
,
4299 .queryfs
= smb311_queryfs
,
4300 .mand_lock
= smb2_mand_lock
,
4301 .mand_unlock_range
= smb2_unlock_range
,
4302 .push_mand_locks
= smb2_push_mandatory_locks
,
4303 .get_lease_key
= smb2_get_lease_key
,
4304 .set_lease_key
= smb2_set_lease_key
,
4305 .new_lease_key
= smb2_new_lease_key
,
4306 .generate_signingkey
= generate_smb311signingkey
,
4307 .calc_signature
= smb3_calc_signature
,
4308 .set_integrity
= smb3_set_integrity
,
4309 .is_read_op
= smb21_is_read_op
,
4310 .set_oplock_level
= smb3_set_oplock_level
,
4311 .create_lease_buf
= smb3_create_lease_buf
,
4312 .parse_lease_buf
= smb3_parse_lease_buf
,
4313 .copychunk_range
= smb2_copychunk_range
,
4314 .duplicate_extents
= smb2_duplicate_extents
,
4315 /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */
4316 .wp_retry_size
= smb2_wp_retry_size
,
4317 .dir_needs_close
= smb2_dir_needs_close
,
4318 .fallocate
= smb3_fallocate
,
4319 .enum_snapshots
= smb3_enum_snapshots
,
4320 .init_transform_rq
= smb3_init_transform_rq
,
4321 .is_transform_hdr
= smb3_is_transform_hdr
,
4322 .receive_transform
= smb3_receive_transform
,
4323 .get_dfs_refer
= smb2_get_dfs_refer
,
4324 .select_sectype
= smb2_select_sectype
,
4325 #ifdef CONFIG_CIFS_XATTR
4326 .query_all_EAs
= smb2_query_eas
,
4327 .set_EA
= smb2_set_ea
,
4328 #endif /* CIFS_XATTR */
4329 #ifdef CONFIG_CIFS_ACL
4330 .get_acl
= get_smb2_acl
,
4331 .get_acl_by_fid
= get_smb2_acl_by_fid
,
4332 .set_acl
= set_smb2_acl
,
4333 #endif /* CIFS_ACL */
4334 .next_header
= smb2_next_header
,
4335 .ioctl_query_info
= smb2_ioctl_query_info
,
4336 .make_node
= smb2_make_node
,
4339 struct smb_version_values smb20_values
= {
4340 .version_string
= SMB20_VERSION_STRING
,
4341 .protocol_id
= SMB20_PROT_ID
,
4342 .req_capabilities
= 0, /* MBZ */
4343 .large_lock_type
= 0,
4344 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4345 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4346 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4347 .header_size
= sizeof(struct smb2_sync_hdr
),
4348 .header_preamble_size
= 0,
4349 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4350 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4351 .lock_cmd
= SMB2_LOCK
,
4353 .cap_nt_find
= SMB2_NT_FIND
,
4354 .cap_large_files
= SMB2_LARGE_FILES
,
4355 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4356 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4357 .create_lease_size
= sizeof(struct create_lease
),
4360 struct smb_version_values smb21_values
= {
4361 .version_string
= SMB21_VERSION_STRING
,
4362 .protocol_id
= SMB21_PROT_ID
,
4363 .req_capabilities
= 0, /* MBZ on negotiate req until SMB3 dialect */
4364 .large_lock_type
= 0,
4365 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4366 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4367 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4368 .header_size
= sizeof(struct smb2_sync_hdr
),
4369 .header_preamble_size
= 0,
4370 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4371 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4372 .lock_cmd
= SMB2_LOCK
,
4374 .cap_nt_find
= SMB2_NT_FIND
,
4375 .cap_large_files
= SMB2_LARGE_FILES
,
4376 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4377 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4378 .create_lease_size
= sizeof(struct create_lease
),
4381 struct smb_version_values smb3any_values
= {
4382 .version_string
= SMB3ANY_VERSION_STRING
,
4383 .protocol_id
= SMB302_PROT_ID
, /* doesn't matter, send protocol array */
4384 .req_capabilities
= SMB2_GLOBAL_CAP_DFS
| SMB2_GLOBAL_CAP_LEASING
| SMB2_GLOBAL_CAP_LARGE_MTU
| SMB2_GLOBAL_CAP_PERSISTENT_HANDLES
| SMB2_GLOBAL_CAP_ENCRYPTION
| SMB2_GLOBAL_CAP_DIRECTORY_LEASING
,
4385 .large_lock_type
= 0,
4386 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4387 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4388 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4389 .header_size
= sizeof(struct smb2_sync_hdr
),
4390 .header_preamble_size
= 0,
4391 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4392 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4393 .lock_cmd
= SMB2_LOCK
,
4395 .cap_nt_find
= SMB2_NT_FIND
,
4396 .cap_large_files
= SMB2_LARGE_FILES
,
4397 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4398 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4399 .create_lease_size
= sizeof(struct create_lease_v2
),
4402 struct smb_version_values smbdefault_values
= {
4403 .version_string
= SMBDEFAULT_VERSION_STRING
,
4404 .protocol_id
= SMB302_PROT_ID
, /* doesn't matter, send protocol array */
4405 .req_capabilities
= SMB2_GLOBAL_CAP_DFS
| SMB2_GLOBAL_CAP_LEASING
| SMB2_GLOBAL_CAP_LARGE_MTU
| SMB2_GLOBAL_CAP_PERSISTENT_HANDLES
| SMB2_GLOBAL_CAP_ENCRYPTION
| SMB2_GLOBAL_CAP_DIRECTORY_LEASING
,
4406 .large_lock_type
= 0,
4407 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4408 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4409 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4410 .header_size
= sizeof(struct smb2_sync_hdr
),
4411 .header_preamble_size
= 0,
4412 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4413 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4414 .lock_cmd
= SMB2_LOCK
,
4416 .cap_nt_find
= SMB2_NT_FIND
,
4417 .cap_large_files
= SMB2_LARGE_FILES
,
4418 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4419 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4420 .create_lease_size
= sizeof(struct create_lease_v2
),
4423 struct smb_version_values smb30_values
= {
4424 .version_string
= SMB30_VERSION_STRING
,
4425 .protocol_id
= SMB30_PROT_ID
,
4426 .req_capabilities
= SMB2_GLOBAL_CAP_DFS
| SMB2_GLOBAL_CAP_LEASING
| SMB2_GLOBAL_CAP_LARGE_MTU
| SMB2_GLOBAL_CAP_PERSISTENT_HANDLES
| SMB2_GLOBAL_CAP_ENCRYPTION
| SMB2_GLOBAL_CAP_DIRECTORY_LEASING
,
4427 .large_lock_type
= 0,
4428 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4429 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4430 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4431 .header_size
= sizeof(struct smb2_sync_hdr
),
4432 .header_preamble_size
= 0,
4433 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4434 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4435 .lock_cmd
= SMB2_LOCK
,
4437 .cap_nt_find
= SMB2_NT_FIND
,
4438 .cap_large_files
= SMB2_LARGE_FILES
,
4439 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4440 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4441 .create_lease_size
= sizeof(struct create_lease_v2
),
4444 struct smb_version_values smb302_values
= {
4445 .version_string
= SMB302_VERSION_STRING
,
4446 .protocol_id
= SMB302_PROT_ID
,
4447 .req_capabilities
= SMB2_GLOBAL_CAP_DFS
| SMB2_GLOBAL_CAP_LEASING
| SMB2_GLOBAL_CAP_LARGE_MTU
| SMB2_GLOBAL_CAP_PERSISTENT_HANDLES
| SMB2_GLOBAL_CAP_ENCRYPTION
| SMB2_GLOBAL_CAP_DIRECTORY_LEASING
,
4448 .large_lock_type
= 0,
4449 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4450 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4451 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4452 .header_size
= sizeof(struct smb2_sync_hdr
),
4453 .header_preamble_size
= 0,
4454 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4455 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4456 .lock_cmd
= SMB2_LOCK
,
4458 .cap_nt_find
= SMB2_NT_FIND
,
4459 .cap_large_files
= SMB2_LARGE_FILES
,
4460 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4461 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4462 .create_lease_size
= sizeof(struct create_lease_v2
),
4465 struct smb_version_values smb311_values
= {
4466 .version_string
= SMB311_VERSION_STRING
,
4467 .protocol_id
= SMB311_PROT_ID
,
4468 .req_capabilities
= SMB2_GLOBAL_CAP_DFS
| SMB2_GLOBAL_CAP_LEASING
| SMB2_GLOBAL_CAP_LARGE_MTU
| SMB2_GLOBAL_CAP_PERSISTENT_HANDLES
| SMB2_GLOBAL_CAP_ENCRYPTION
| SMB2_GLOBAL_CAP_DIRECTORY_LEASING
,
4469 .large_lock_type
= 0,
4470 .exclusive_lock_type
= SMB2_LOCKFLAG_EXCLUSIVE_LOCK
,
4471 .shared_lock_type
= SMB2_LOCKFLAG_SHARED_LOCK
,
4472 .unlock_lock_type
= SMB2_LOCKFLAG_UNLOCK
,
4473 .header_size
= sizeof(struct smb2_sync_hdr
),
4474 .header_preamble_size
= 0,
4475 .max_header_size
= MAX_SMB2_HDR_SIZE
,
4476 .read_rsp_size
= sizeof(struct smb2_read_rsp
) - 1,
4477 .lock_cmd
= SMB2_LOCK
,
4479 .cap_nt_find
= SMB2_NT_FIND
,
4480 .cap_large_files
= SMB2_LARGE_FILES
,
4481 .signing_enabled
= SMB2_NEGOTIATE_SIGNING_ENABLED
| SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4482 .signing_required
= SMB2_NEGOTIATE_SIGNING_REQUIRED
,
4483 .create_lease_size
= sizeof(struct create_lease_v2
),