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"
38 change_conf(struct TCP_Server_Info *server)
40 server->credits += server->echo_credits + server->oplock_credits;
41 server->oplock_credits = server->echo_credits = 0;
42 switch (server->credits) {
46 server->echoes = false;
47 server->oplocks = false;
48 cifs_dbg(VFS, "disabling echoes and oplocks\n");
51 server->echoes = true;
52 server->oplocks = false;
53 server->echo_credits = 1;
54 cifs_dbg(FYI, "disabling oplocks\n");
57 server->echoes = true;
59 server->oplocks = true;
60 server->oplock_credits = 1;
62 server->oplocks = false;
64 server->echo_credits = 1;
66 server->credits -= server->echo_credits + server->oplock_credits;
71 smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
75 spin_lock(&server->req_lock);
76 val = server->ops->get_credits_field(server, optype);
79 *val = 65000; /* Don't get near 64K credits, avoid srv bugs */
80 printk_once(KERN_WARNING "server overflowed SMB3 credits\n");
83 if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP)
84 rc = change_conf(server);
86 * Sometimes server returns 0 credits on oplock break ack - we need to
87 * rebalance credits in this case.
89 else if (server->in_flight > 0 && server->oplock_credits == 0 &&
91 if (server->credits > 1) {
93 server->oplock_credits++;
96 spin_unlock(&server->req_lock);
97 wake_up(&server->request_q);
99 cifs_reconnect(server);
103 smb2_set_credits(struct TCP_Server_Info *server, const int val)
105 spin_lock(&server->req_lock);
106 server->credits = val;
107 spin_unlock(&server->req_lock);
111 smb2_get_credits_field(struct TCP_Server_Info *server, const int optype)
115 return &server->echo_credits;
117 return &server->oplock_credits;
119 return &server->credits;
124 smb2_get_credits(struct mid_q_entry *mid)
126 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)mid->resp_buf;
128 return le16_to_cpu(shdr->CreditRequest);
132 smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size,
133 unsigned int *num, unsigned int *credits)
136 unsigned int scredits;
138 spin_lock(&server->req_lock);
140 if (server->credits <= 0) {
141 spin_unlock(&server->req_lock);
142 cifs_num_waiters_inc(server);
143 rc = wait_event_killable(server->request_q,
144 has_credits(server, &server->credits));
145 cifs_num_waiters_dec(server);
148 spin_lock(&server->req_lock);
150 if (server->tcpStatus == CifsExiting) {
151 spin_unlock(&server->req_lock);
155 scredits = server->credits;
156 /* can deadlock with reopen */
158 *num = SMB2_MAX_BUFFER_SIZE;
163 /* leave one credit for a possible reopen */
165 *num = min_t(unsigned int, size,
166 scredits * SMB2_MAX_BUFFER_SIZE);
168 *credits = DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE);
169 server->credits -= *credits;
174 spin_unlock(&server->req_lock);
179 smb2_get_next_mid(struct TCP_Server_Info *server)
182 /* for SMB2 we need the current value */
183 spin_lock(&GlobalMid_Lock);
184 mid = server->CurrentMid++;
185 spin_unlock(&GlobalMid_Lock);
189 static struct mid_q_entry *
190 smb2_find_mid(struct TCP_Server_Info *server, char *buf)
192 struct mid_q_entry *mid;
193 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
194 __u64 wire_mid = le64_to_cpu(shdr->MessageId);
196 if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) {
197 cifs_dbg(VFS, "encrypted frame parsing not supported yet");
201 spin_lock(&GlobalMid_Lock);
202 list_for_each_entry(mid, &server->pending_mid_q, qhead) {
203 if ((mid->mid == wire_mid) &&
204 (mid->mid_state == MID_REQUEST_SUBMITTED) &&
205 (mid->command == shdr->Command)) {
206 kref_get(&mid->refcount);
207 spin_unlock(&GlobalMid_Lock);
211 spin_unlock(&GlobalMid_Lock);
216 smb2_dump_detail(void *buf, struct TCP_Server_Info *server)
218 #ifdef CONFIG_CIFS_DEBUG2
219 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
221 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
222 shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId,
224 cifs_dbg(VFS, "smb buf %p len %u\n", buf,
225 server->ops->calc_smb_size(buf, server));
230 smb2_need_neg(struct TCP_Server_Info *server)
232 return server->max_read == 0;
236 smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
239 ses->server->CurrentMid = 0;
240 rc = SMB2_negotiate(xid, ses);
241 /* BB we probably don't need to retry with modern servers */
248 smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
250 struct TCP_Server_Info *server = tcon->ses->server;
253 /* start with specified wsize, or default */
254 wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE;
255 wsize = min_t(unsigned int, wsize, server->max_write);
256 #ifdef CONFIG_CIFS_SMB_DIRECT
259 wsize = min_t(unsigned int,
260 wsize, server->smbd_conn->max_fragmented_send_size);
262 wsize = min_t(unsigned int,
263 wsize, server->smbd_conn->max_readwrite_size);
266 if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))
267 wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE);
273 smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
275 struct TCP_Server_Info *server = tcon->ses->server;
278 /* start with specified rsize, or default */
279 rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE;
280 rsize = min_t(unsigned int, rsize, server->max_read);
281 #ifdef CONFIG_CIFS_SMB_DIRECT
284 rsize = min_t(unsigned int,
285 rsize, server->smbd_conn->max_fragmented_recv_size);
287 rsize = min_t(unsigned int,
288 rsize, server->smbd_conn->max_readwrite_size);
292 if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))
293 rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE);
300 parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf,
302 struct cifs_server_iface **iface_list,
305 struct network_interface_info_ioctl_rsp *p;
306 struct sockaddr_in *addr4;
307 struct sockaddr_in6 *addr6;
308 struct iface_info_ipv4 *p4;
309 struct iface_info_ipv6 *p6;
310 struct cifs_server_iface *info;
320 * Fist pass: count and sanity check
323 bytes_left = buf_len;
325 while (bytes_left >= sizeof(*p)) {
327 next = le32_to_cpu(p->Next);
329 bytes_left -= sizeof(*p);
332 p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next);
337 cifs_dbg(VFS, "%s: malformed interface info\n", __func__);
342 if (bytes_left || p->Next)
343 cifs_dbg(VFS, "%s: incomplete interface info\n", __func__);
347 * Second pass: extract info to internal structure
350 *iface_list = kcalloc(nb_iface, sizeof(**iface_list), GFP_KERNEL);
357 bytes_left = buf_len;
359 while (bytes_left >= sizeof(*p)) {
360 info->speed = le64_to_cpu(p->LinkSpeed);
361 info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE);
362 info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE);
364 cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, *iface_count);
365 cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed);
366 cifs_dbg(FYI, "%s: capabilities 0x%08x\n", __func__,
367 le32_to_cpu(p->Capability));
371 * The kernel and wire socket structures have the same
372 * layout and use network byte order but make the
373 * conversion explicit in case either one changes.
376 addr4 = (struct sockaddr_in *)&info->sockaddr;
377 p4 = (struct iface_info_ipv4 *)p->Buffer;
378 addr4->sin_family = AF_INET;
379 memcpy(&addr4->sin_addr, &p4->IPv4Address, 4);
381 /* [MS-SMB2] 2.2.32.5.1.1 Clients MUST ignore these */
382 addr4->sin_port = cpu_to_be16(CIFS_PORT);
384 cifs_dbg(FYI, "%s: ipv4 %pI4\n", __func__,
388 addr6 = (struct sockaddr_in6 *)&info->sockaddr;
389 p6 = (struct iface_info_ipv6 *)p->Buffer;
390 addr6->sin6_family = AF_INET6;
391 memcpy(&addr6->sin6_addr, &p6->IPv6Address, 16);
393 /* [MS-SMB2] 2.2.32.5.1.2 Clients MUST ignore these */
394 addr6->sin6_flowinfo = 0;
395 addr6->sin6_scope_id = 0;
396 addr6->sin6_port = cpu_to_be16(CIFS_PORT);
398 cifs_dbg(FYI, "%s: ipv6 %pI6\n", __func__,
403 "%s: skipping unsupported socket family\n",
411 next = le32_to_cpu(p->Next);
414 p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next);
434 SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
437 unsigned int ret_data_len = 0;
438 struct network_interface_info_ioctl_rsp *out_buf = NULL;
439 struct cifs_server_iface *iface_list;
441 struct cifs_ses *ses = tcon->ses;
443 rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
444 FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
445 NULL /* no data input */, 0 /* no data input */,
446 (char **)&out_buf, &ret_data_len);
448 cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
452 rc = parse_server_interfaces(out_buf, ret_data_len,
453 &iface_list, &iface_count);
457 spin_lock(&ses->iface_lock);
458 kfree(ses->iface_list);
459 ses->iface_list = iface_list;
460 ses->iface_count = iface_count;
461 ses->iface_last_update = jiffies;
462 spin_unlock(&ses->iface_lock);
470 smb2_cached_lease_break(struct work_struct *work)
472 struct cached_fid *cfid = container_of(work,
473 struct cached_fid, lease_break);
474 mutex_lock(&cfid->fid_mutex);
475 if (cfid->is_valid) {
476 cifs_dbg(FYI, "clear cached root file handle\n");
477 SMB2_close(0, cfid->tcon, cfid->fid->persistent_fid,
478 cfid->fid->volatile_fid);
479 cfid->is_valid = false;
481 mutex_unlock(&cfid->fid_mutex);
485 * Open the directory at the root of a share
487 int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid)
489 struct cifs_open_parms oparams;
491 __le16 srch_path = 0; /* Null - since an open of top of share */
492 u8 oplock = SMB2_OPLOCK_LEVEL_II;
494 mutex_lock(&tcon->crfid.fid_mutex);
495 if (tcon->crfid.is_valid) {
496 cifs_dbg(FYI, "found a cached root file handle\n");
497 memcpy(pfid, tcon->crfid.fid, sizeof(struct cifs_fid));
498 mutex_unlock(&tcon->crfid.fid_mutex);
503 oparams.create_options = 0;
504 oparams.desired_access = FILE_READ_ATTRIBUTES;
505 oparams.disposition = FILE_OPEN;
507 oparams.reconnect = false;
509 rc = SMB2_open(xid, &oparams, &srch_path, &oplock, NULL, NULL, NULL);
511 memcpy(tcon->crfid.fid, pfid, sizeof(struct cifs_fid));
512 tcon->crfid.tcon = tcon;
513 tcon->crfid.is_valid = true;
515 mutex_unlock(&tcon->crfid.fid_mutex);
520 smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
523 __le16 srch_path = 0; /* Null - open root of share */
524 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
525 struct cifs_open_parms oparms;
527 bool no_cached_open = tcon->nohandlecache;
530 oparms.desired_access = FILE_READ_ATTRIBUTES;
531 oparms.disposition = FILE_OPEN;
532 oparms.create_options = 0;
534 oparms.reconnect = false;
537 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL,
540 rc = open_shroot(xid, tcon, &fid);
545 SMB3_request_interfaces(xid, tcon);
547 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
548 FS_ATTRIBUTE_INFORMATION);
549 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
550 FS_DEVICE_INFORMATION);
551 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
552 FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
554 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
559 smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
562 __le16 srch_path = 0; /* Null - open root of share */
563 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
564 struct cifs_open_parms oparms;
568 oparms.desired_access = FILE_READ_ATTRIBUTES;
569 oparms.disposition = FILE_OPEN;
570 oparms.create_options = 0;
572 oparms.reconnect = false;
574 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL);
578 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
579 FS_ATTRIBUTE_INFORMATION);
580 SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
581 FS_DEVICE_INFORMATION);
582 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
587 smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
588 struct cifs_sb_info *cifs_sb, const char *full_path)
592 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
593 struct cifs_open_parms oparms;
596 if ((*full_path == 0) && tcon->crfid.is_valid)
599 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
604 oparms.desired_access = FILE_READ_ATTRIBUTES;
605 oparms.disposition = FILE_OPEN;
606 oparms.create_options = 0;
608 oparms.reconnect = false;
610 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
616 rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
622 smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
623 struct cifs_sb_info *cifs_sb, const char *full_path,
624 u64 *uniqueid, FILE_ALL_INFO *data)
626 *uniqueid = le64_to_cpu(data->IndexNumber);
631 smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
632 struct cifs_fid *fid, FILE_ALL_INFO *data)
635 struct smb2_file_all_info *smb2_data;
637 smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
639 if (smb2_data == NULL)
642 rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid,
645 move_smb2_info_to_cifs(data, smb2_data);
650 #ifdef CONFIG_CIFS_XATTR
652 move_smb2_ea_to_cifs(char *dst, size_t dst_size,
653 struct smb2_file_full_ea_info *src, size_t src_size,
654 const unsigned char *ea_name)
657 unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0;
659 size_t name_len, value_len, user_name_len;
661 while (src_size > 0) {
662 name = &src->ea_data[0];
663 name_len = (size_t)src->ea_name_length;
664 value = &src->ea_data[src->ea_name_length + 1];
665 value_len = (size_t)le16_to_cpu(src->ea_value_length);
671 if (src_size < 8 + name_len + 1 + value_len) {
672 cifs_dbg(FYI, "EA entry goes beyond length of list\n");
678 if (ea_name_len == name_len &&
679 memcmp(ea_name, name, name_len) == 0) {
683 if (dst_size < value_len) {
687 memcpy(dst, value, value_len);
691 /* 'user.' plus a terminating null */
692 user_name_len = 5 + 1 + name_len;
696 if (dst_size >= user_name_len) {
697 dst_size -= user_name_len;
698 memcpy(dst, "user.", 5);
700 memcpy(dst, src->ea_data, name_len);
704 } else if (dst_size == 0) {
705 /* skip copy - calc size only */
707 /* stop before overrun buffer */
713 if (!src->next_entry_offset)
716 if (src_size < le32_to_cpu(src->next_entry_offset)) {
717 /* stop before overrun buffer */
721 src_size -= le32_to_cpu(src->next_entry_offset);
722 src = (void *)((char *)src +
723 le32_to_cpu(src->next_entry_offset));
726 /* didn't find the named attribute */
735 smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
736 const unsigned char *path, const unsigned char *ea_name,
737 char *ea_data, size_t buf_size,
738 struct cifs_sb_info *cifs_sb)
742 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
743 struct cifs_open_parms oparms;
745 struct smb2_file_full_ea_info *smb2_data;
746 int ea_buf_size = SMB2_MIN_EA_BUF;
748 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
753 oparms.desired_access = FILE_READ_EA;
754 oparms.disposition = FILE_OPEN;
755 oparms.create_options = 0;
757 oparms.reconnect = false;
759 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
762 cifs_dbg(FYI, "open failed rc=%d\n", rc);
767 smb2_data = kzalloc(ea_buf_size, GFP_KERNEL);
768 if (smb2_data == NULL) {
769 SMB2_close(xid, tcon, fid.persistent_fid,
774 rc = SMB2_query_eas(xid, tcon, fid.persistent_fid,
776 ea_buf_size, smb2_data);
784 if (ea_buf_size > SMB2_MAX_EA_BUF) {
785 cifs_dbg(VFS, "EA size is too large\n");
786 SMB2_close(xid, tcon, fid.persistent_fid,
792 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
795 * If ea_name is NULL (listxattr) and there are no EAs, return 0 as it's
796 * not an error. Otherwise, the specified ea_name was not found.
799 rc = move_smb2_ea_to_cifs(ea_data, buf_size, smb2_data,
800 SMB2_MAX_EA_BUF, ea_name);
801 else if (!ea_name && rc == -ENODATA)
810 smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
811 const char *path, const char *ea_name, const void *ea_value,
812 const __u16 ea_value_len, const struct nls_table *nls_codepage,
813 struct cifs_sb_info *cifs_sb)
817 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
818 struct cifs_open_parms oparms;
820 struct smb2_file_full_ea_info *ea;
821 int ea_name_len = strlen(ea_name);
824 if (ea_name_len > 255)
827 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
832 oparms.desired_access = FILE_WRITE_EA;
833 oparms.disposition = FILE_OPEN;
834 oparms.create_options = 0;
836 oparms.reconnect = false;
838 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
841 cifs_dbg(FYI, "open failed rc=%d\n", rc);
845 len = sizeof(ea) + ea_name_len + ea_value_len + 1;
846 ea = kzalloc(len, GFP_KERNEL);
848 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
852 ea->ea_name_length = ea_name_len;
853 ea->ea_value_length = cpu_to_le16(ea_value_len);
854 memcpy(ea->ea_data, ea_name, ea_name_len + 1);
855 memcpy(ea->ea_data + ea_name_len + 1, ea_value, ea_value_len);
857 rc = SMB2_set_ea(xid, tcon, fid.persistent_fid, fid.volatile_fid, ea,
861 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
868 smb2_can_echo(struct TCP_Server_Info *server)
870 return server->echoes;
874 smb2_clear_stats(struct cifs_tcon *tcon)
876 #ifdef CONFIG_CIFS_STATS
878 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
879 atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
880 atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
886 smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
888 seq_puts(m, "\n\tShare Capabilities:");
889 if (tcon->capabilities & SMB2_SHARE_CAP_DFS)
890 seq_puts(m, " DFS,");
891 if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY)
892 seq_puts(m, " CONTINUOUS AVAILABILITY,");
893 if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT)
894 seq_puts(m, " SCALEOUT,");
895 if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER)
896 seq_puts(m, " CLUSTER,");
897 if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC)
898 seq_puts(m, " ASYMMETRIC,");
899 if (tcon->capabilities == 0)
900 seq_puts(m, " None");
901 if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
902 seq_puts(m, " Aligned,");
903 if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
904 seq_puts(m, " Partition Aligned,");
905 if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
906 seq_puts(m, " SSD,");
907 if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
908 seq_puts(m, " TRIM-support,");
910 seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
911 seq_printf(m, "\n\ttid: 0x%x", tcon->tid);
912 if (tcon->perf_sector_size)
913 seq_printf(m, "\tOptimal sector size: 0x%x",
914 tcon->perf_sector_size);
915 seq_printf(m, "\tMaximal Access: 0x%x", tcon->maximal_access);
919 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
921 #ifdef CONFIG_CIFS_STATS
922 atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
923 atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
924 seq_printf(m, "\nNegotiates: %d sent %d failed",
925 atomic_read(&sent[SMB2_NEGOTIATE_HE]),
926 atomic_read(&failed[SMB2_NEGOTIATE_HE]));
927 seq_printf(m, "\nSessionSetups: %d sent %d failed",
928 atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
929 atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
930 seq_printf(m, "\nLogoffs: %d sent %d failed",
931 atomic_read(&sent[SMB2_LOGOFF_HE]),
932 atomic_read(&failed[SMB2_LOGOFF_HE]));
933 seq_printf(m, "\nTreeConnects: %d sent %d failed",
934 atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
935 atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
936 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
937 atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
938 atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
939 seq_printf(m, "\nCreates: %d sent %d failed",
940 atomic_read(&sent[SMB2_CREATE_HE]),
941 atomic_read(&failed[SMB2_CREATE_HE]));
942 seq_printf(m, "\nCloses: %d sent %d failed",
943 atomic_read(&sent[SMB2_CLOSE_HE]),
944 atomic_read(&failed[SMB2_CLOSE_HE]));
945 seq_printf(m, "\nFlushes: %d sent %d failed",
946 atomic_read(&sent[SMB2_FLUSH_HE]),
947 atomic_read(&failed[SMB2_FLUSH_HE]));
948 seq_printf(m, "\nReads: %d sent %d failed",
949 atomic_read(&sent[SMB2_READ_HE]),
950 atomic_read(&failed[SMB2_READ_HE]));
951 seq_printf(m, "\nWrites: %d sent %d failed",
952 atomic_read(&sent[SMB2_WRITE_HE]),
953 atomic_read(&failed[SMB2_WRITE_HE]));
954 seq_printf(m, "\nLocks: %d sent %d failed",
955 atomic_read(&sent[SMB2_LOCK_HE]),
956 atomic_read(&failed[SMB2_LOCK_HE]));
957 seq_printf(m, "\nIOCTLs: %d sent %d failed",
958 atomic_read(&sent[SMB2_IOCTL_HE]),
959 atomic_read(&failed[SMB2_IOCTL_HE]));
960 seq_printf(m, "\nCancels: %d sent %d failed",
961 atomic_read(&sent[SMB2_CANCEL_HE]),
962 atomic_read(&failed[SMB2_CANCEL_HE]));
963 seq_printf(m, "\nEchos: %d sent %d failed",
964 atomic_read(&sent[SMB2_ECHO_HE]),
965 atomic_read(&failed[SMB2_ECHO_HE]));
966 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
967 atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
968 atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
969 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
970 atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
971 atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
972 seq_printf(m, "\nQueryInfos: %d sent %d failed",
973 atomic_read(&sent[SMB2_QUERY_INFO_HE]),
974 atomic_read(&failed[SMB2_QUERY_INFO_HE]));
975 seq_printf(m, "\nSetInfos: %d sent %d failed",
976 atomic_read(&sent[SMB2_SET_INFO_HE]),
977 atomic_read(&failed[SMB2_SET_INFO_HE]));
978 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
979 atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
980 atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
985 smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
987 struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
988 struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
990 cfile->fid.persistent_fid = fid->persistent_fid;
991 cfile->fid.volatile_fid = fid->volatile_fid;
992 server->ops->set_oplock_level(cinode, oplock, fid->epoch,
994 cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
995 memcpy(cfile->fid.create_guid, fid->create_guid, 16);
999 smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
1000 struct cifs_fid *fid)
1002 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
1006 SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
1007 u64 persistent_fid, u64 volatile_fid,
1008 struct copychunk_ioctl *pcchunk)
1011 unsigned int ret_data_len;
1012 struct resume_key_req *res_key;
1014 rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
1015 FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
1016 NULL, 0 /* no input */,
1017 (char **)&res_key, &ret_data_len);
1020 cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
1021 goto req_res_key_exit;
1023 if (ret_data_len < sizeof(struct resume_key_req)) {
1024 cifs_dbg(VFS, "Invalid refcopy resume key length\n");
1026 goto req_res_key_exit;
1028 memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
1036 smb2_copychunk_range(const unsigned int xid,
1037 struct cifsFileInfo *srcfile,
1038 struct cifsFileInfo *trgtfile, u64 src_off,
1039 u64 len, u64 dest_off)
1042 unsigned int ret_data_len;
1043 struct copychunk_ioctl *pcchunk;
1044 struct copychunk_ioctl_rsp *retbuf = NULL;
1045 struct cifs_tcon *tcon;
1046 int chunks_copied = 0;
1047 bool chunk_sizes_updated = false;
1048 ssize_t bytes_written, total_bytes_written = 0;
1050 pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
1052 if (pcchunk == NULL)
1055 cifs_dbg(FYI, "in smb2_copychunk_range - about to call request res key\n");
1056 /* Request a key from the server to identify the source of the copy */
1057 rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
1058 srcfile->fid.persistent_fid,
1059 srcfile->fid.volatile_fid, pcchunk);
1061 /* Note: request_res_key sets res_key null only if rc !=0 */
1065 /* For now array only one chunk long, will make more flexible later */
1066 pcchunk->ChunkCount = cpu_to_le32(1);
1067 pcchunk->Reserved = 0;
1068 pcchunk->Reserved2 = 0;
1070 tcon = tlink_tcon(trgtfile->tlink);
1073 pcchunk->SourceOffset = cpu_to_le64(src_off);
1074 pcchunk->TargetOffset = cpu_to_le64(dest_off);
1076 cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk));
1078 /* Request server copy to target from src identified by key */
1079 rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
1080 trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
1081 true /* is_fsctl */, (char *)pcchunk,
1082 sizeof(struct copychunk_ioctl), (char **)&retbuf,
1086 sizeof(struct copychunk_ioctl_rsp)) {
1087 cifs_dbg(VFS, "invalid cchunk response size\n");
1091 if (retbuf->TotalBytesWritten == 0) {
1092 cifs_dbg(FYI, "no bytes copied\n");
1097 * Check if server claimed to write more than we asked
1099 if (le32_to_cpu(retbuf->TotalBytesWritten) >
1100 le32_to_cpu(pcchunk->Length)) {
1101 cifs_dbg(VFS, "invalid copy chunk response\n");
1105 if (le32_to_cpu(retbuf->ChunksWritten) != 1) {
1106 cifs_dbg(VFS, "invalid num chunks written\n");
1112 bytes_written = le32_to_cpu(retbuf->TotalBytesWritten);
1113 src_off += bytes_written;
1114 dest_off += bytes_written;
1115 len -= bytes_written;
1116 total_bytes_written += bytes_written;
1118 cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n",
1119 le32_to_cpu(retbuf->ChunksWritten),
1120 le32_to_cpu(retbuf->ChunkBytesWritten),
1122 } else if (rc == -EINVAL) {
1123 if (ret_data_len != sizeof(struct copychunk_ioctl_rsp))
1126 cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n",
1127 le32_to_cpu(retbuf->ChunksWritten),
1128 le32_to_cpu(retbuf->ChunkBytesWritten),
1129 le32_to_cpu(retbuf->TotalBytesWritten));
1132 * Check if this is the first request using these sizes,
1133 * (ie check if copy succeed once with original sizes
1134 * and check if the server gave us different sizes after
1135 * we already updated max sizes on previous request).
1136 * if not then why is the server returning an error now
1138 if ((chunks_copied != 0) || chunk_sizes_updated)
1141 /* Check that server is not asking us to grow size */
1142 if (le32_to_cpu(retbuf->ChunkBytesWritten) <
1143 tcon->max_bytes_chunk)
1144 tcon->max_bytes_chunk =
1145 le32_to_cpu(retbuf->ChunkBytesWritten);
1147 goto cchunk_out; /* server gave us bogus size */
1149 /* No need to change MaxChunks since already set to 1 */
1150 chunk_sizes_updated = true;
1161 return total_bytes_written;
1165 smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
1166 struct cifs_fid *fid)
1168 return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
1172 smb2_read_data_offset(char *buf)
1174 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
1175 return rsp->DataOffset;
1179 smb2_read_data_length(char *buf, bool in_remaining)
1181 struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
1184 return le32_to_cpu(rsp->DataRemaining);
1186 return le32_to_cpu(rsp->DataLength);
1191 smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid,
1192 struct cifs_io_parms *parms, unsigned int *bytes_read,
1193 char **buf, int *buf_type)
1195 parms->persistent_fid = pfid->persistent_fid;
1196 parms->volatile_fid = pfid->volatile_fid;
1197 return SMB2_read(xid, parms, bytes_read, buf, buf_type);
1201 smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid,
1202 struct cifs_io_parms *parms, unsigned int *written,
1203 struct kvec *iov, unsigned long nr_segs)
1206 parms->persistent_fid = pfid->persistent_fid;
1207 parms->volatile_fid = pfid->volatile_fid;
1208 return SMB2_write(xid, parms, written, iov, nr_segs);
1211 /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */
1212 static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
1213 struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse)
1215 struct cifsInodeInfo *cifsi;
1218 cifsi = CIFS_I(inode);
1220 /* if file already sparse don't bother setting sparse again */
1221 if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse)
1222 return true; /* already sparse */
1224 if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse)
1225 return true; /* already not sparse */
1228 * Can't check for sparse support on share the usual way via the
1229 * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share
1230 * since Samba server doesn't set the flag on the share, yet
1231 * supports the set sparse FSCTL and returns sparse correctly
1232 * in the file attributes. If we fail setting sparse though we
1233 * mark that server does not support sparse files for this share
1234 * to avoid repeatedly sending the unsupported fsctl to server
1235 * if the file is repeatedly extended.
1237 if (tcon->broken_sparse_sup)
1240 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1241 cfile->fid.volatile_fid, FSCTL_SET_SPARSE,
1243 &setsparse, 1, NULL, NULL);
1245 tcon->broken_sparse_sup = true;
1246 cifs_dbg(FYI, "set sparse rc = %d\n", rc);
1251 cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE;
1253 cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE);
1259 smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
1260 struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
1262 __le64 eof = cpu_to_le64(size);
1263 struct inode *inode;
1266 * If extending file more than one page make sparse. Many Linux fs
1267 * make files sparse by default when extending via ftruncate
1269 inode = d_inode(cfile->dentry);
1271 if (!set_alloc && (size > inode->i_size + 8192)) {
1272 __u8 set_sparse = 1;
1274 /* whether set sparse succeeds or not, extend the file */
1275 smb2_set_sparse(xid, tcon, cfile, inode, set_sparse);
1278 return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
1279 cfile->fid.volatile_fid, cfile->pid, &eof, false);
1283 smb2_duplicate_extents(const unsigned int xid,
1284 struct cifsFileInfo *srcfile,
1285 struct cifsFileInfo *trgtfile, u64 src_off,
1286 u64 len, u64 dest_off)
1289 unsigned int ret_data_len;
1290 struct duplicate_extents_to_file dup_ext_buf;
1291 struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink);
1293 /* server fileays advertise duplicate extent support with this flag */
1294 if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) &
1295 FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0)
1298 dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid;
1299 dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid;
1300 dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off);
1301 dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off);
1302 dup_ext_buf.ByteCount = cpu_to_le64(len);
1303 cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld",
1304 src_off, dest_off, len);
1306 rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false);
1308 goto duplicate_extents_out;
1310 rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
1311 trgtfile->fid.volatile_fid,
1312 FSCTL_DUPLICATE_EXTENTS_TO_FILE,
1313 true /* is_fsctl */,
1314 (char *)&dup_ext_buf,
1315 sizeof(struct duplicate_extents_to_file),
1319 if (ret_data_len > 0)
1320 cifs_dbg(FYI, "non-zero response length in duplicate extents");
1322 duplicate_extents_out:
1327 smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
1328 struct cifsFileInfo *cfile)
1330 return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
1331 cfile->fid.volatile_fid);
1335 smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon,
1336 struct cifsFileInfo *cfile)
1338 struct fsctl_set_integrity_information_req integr_info;
1339 unsigned int ret_data_len;
1341 integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED);
1342 integr_info.Flags = 0;
1343 integr_info.Reserved = 0;
1345 return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1346 cfile->fid.volatile_fid,
1347 FSCTL_SET_INTEGRITY_INFORMATION,
1348 true /* is_fsctl */,
1349 (char *)&integr_info,
1350 sizeof(struct fsctl_set_integrity_information_req),
1357 smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon,
1358 struct cifsFileInfo *cfile, void __user *ioc_buf)
1360 char *retbuf = NULL;
1361 unsigned int ret_data_len = 0;
1363 struct smb_snapshot_array snapshot_in;
1365 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1366 cfile->fid.volatile_fid,
1367 FSCTL_SRV_ENUMERATE_SNAPSHOTS,
1368 true /* is_fsctl */,
1369 NULL, 0 /* no input data */,
1372 cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n",
1377 if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) {
1379 if (copy_from_user(&snapshot_in, ioc_buf,
1380 sizeof(struct smb_snapshot_array))) {
1385 if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) {
1391 if (ret_data_len > snapshot_in.snapshot_array_size)
1392 ret_data_len = snapshot_in.snapshot_array_size;
1394 if (copy_to_user(ioc_buf, retbuf, ret_data_len))
1403 smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
1404 const char *path, struct cifs_sb_info *cifs_sb,
1405 struct cifs_fid *fid, __u16 search_flags,
1406 struct cifs_search_info *srch_inf)
1410 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1411 struct cifs_open_parms oparms;
1413 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
1418 oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
1419 oparms.disposition = FILE_OPEN;
1420 oparms.create_options = 0;
1422 oparms.reconnect = false;
1424 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
1427 cifs_dbg(FYI, "open dir failed rc=%d\n", rc);
1431 srch_inf->entries_in_buffer = 0;
1432 srch_inf->index_of_last_entry = 0;
1434 rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
1435 fid->volatile_fid, 0, srch_inf);
1437 cifs_dbg(FYI, "query directory failed rc=%d\n", rc);
1438 SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
1444 smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
1445 struct cifs_fid *fid, __u16 search_flags,
1446 struct cifs_search_info *srch_inf)
1448 return SMB2_query_directory(xid, tcon, fid->persistent_fid,
1449 fid->volatile_fid, 0, srch_inf);
1453 smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
1454 struct cifs_fid *fid)
1456 return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
1460 * If we negotiate SMB2 protocol and get STATUS_PENDING - update
1461 * the number of credits and return true. Otherwise - return false.
1464 smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length)
1466 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
1468 if (shdr->Status != STATUS_PENDING)
1472 spin_lock(&server->req_lock);
1473 server->credits += le16_to_cpu(shdr->CreditRequest);
1474 spin_unlock(&server->req_lock);
1475 wake_up(&server->request_q);
1482 smb2_is_session_expired(char *buf)
1484 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
1486 if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED &&
1487 shdr->Status != STATUS_USER_SESSION_DELETED)
1490 cifs_dbg(FYI, "Session expired or deleted\n");
1495 smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
1496 struct cifsInodeInfo *cinode)
1498 if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING)
1499 return SMB2_lease_break(0, tcon, cinode->lease_key,
1500 smb2_get_lease_state(cinode));
1502 return SMB2_oplock_break(0, tcon, fid->persistent_fid,
1504 CIFS_CACHE_READ(cinode) ? 1 : 0);
1508 smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
1509 struct kstatfs *buf)
1512 __le16 srch_path = 0; /* Null - open root of share */
1513 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1514 struct cifs_open_parms oparms;
1515 struct cifs_fid fid;
1518 oparms.desired_access = FILE_READ_ATTRIBUTES;
1519 oparms.disposition = FILE_OPEN;
1520 oparms.create_options = 0;
1522 oparms.reconnect = false;
1524 rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL);
1527 buf->f_type = SMB2_MAGIC_NUMBER;
1528 rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid,
1530 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
1535 smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
1537 return ob1->fid.persistent_fid == ob2->fid.persistent_fid &&
1538 ob1->fid.volatile_fid == ob2->fid.volatile_fid;
1542 smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
1543 __u64 length, __u32 type, int lock, int unlock, bool wait)
1545 if (unlock && !lock)
1546 type = SMB2_LOCKFLAG_UNLOCK;
1547 return SMB2_lock(xid, tlink_tcon(cfile->tlink),
1548 cfile->fid.persistent_fid, cfile->fid.volatile_fid,
1549 current->tgid, length, offset, type, wait);
1553 smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid)
1555 memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE);
1559 smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid)
1561 memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
1565 smb2_new_lease_key(struct cifs_fid *fid)
1567 generate_random_uuid(fid->lease_key);
1571 smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
1572 const char *search_name,
1573 struct dfs_info3_param **target_nodes,
1574 unsigned int *num_of_nodes,
1575 const struct nls_table *nls_codepage, int remap)
1578 __le16 *utf16_path = NULL;
1579 int utf16_path_len = 0;
1580 struct cifs_tcon *tcon;
1581 struct fsctl_get_dfs_referral_req *dfs_req = NULL;
1582 struct get_dfs_referral_rsp *dfs_rsp = NULL;
1583 u32 dfs_req_size = 0, dfs_rsp_size = 0;
1585 cifs_dbg(FYI, "smb2_get_dfs_refer path <%s>\n", search_name);
1588 * Try to use the IPC tcon, otherwise just use any
1590 tcon = ses->tcon_ipc;
1592 spin_lock(&cifs_tcp_ses_lock);
1593 tcon = list_first_entry_or_null(&ses->tcon_list,
1598 spin_unlock(&cifs_tcp_ses_lock);
1602 cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n",
1608 utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX,
1610 nls_codepage, remap);
1616 dfs_req_size = sizeof(*dfs_req) + utf16_path_len;
1617 dfs_req = kzalloc(dfs_req_size, GFP_KERNEL);
1623 /* Highest DFS referral version understood */
1624 dfs_req->MaxReferralLevel = DFS_VERSION;
1626 /* Path to resolve in an UTF-16 null-terminated string */
1627 memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len);
1630 rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
1631 FSCTL_DFS_GET_REFERRALS,
1632 true /* is_fsctl */,
1633 (char *)dfs_req, dfs_req_size,
1634 (char **)&dfs_rsp, &dfs_rsp_size);
1635 } while (rc == -EAGAIN);
1638 if ((rc != -ENOENT) && (rc != -EOPNOTSUPP))
1639 cifs_dbg(VFS, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc);
1643 rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size,
1644 num_of_nodes, target_nodes,
1645 nls_codepage, remap, search_name,
1646 true /* is_unicode */);
1648 cifs_dbg(VFS, "parse error in smb2_get_dfs_refer rc=%d\n", rc);
1653 if (tcon && !tcon->ipc) {
1654 /* ipc tcons are not refcounted */
1655 spin_lock(&cifs_tcp_ses_lock);
1657 spin_unlock(&cifs_tcp_ses_lock);
1664 #define SMB2_SYMLINK_STRUCT_SIZE \
1665 (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp))
1668 smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
1669 const char *full_path, char **target_path,
1670 struct cifs_sb_info *cifs_sb)
1674 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1675 struct cifs_open_parms oparms;
1676 struct cifs_fid fid;
1677 struct kvec err_iov = {NULL, 0};
1678 struct smb2_err_rsp *err_buf = NULL;
1680 struct smb2_symlink_err_rsp *symlink;
1681 unsigned int sub_len;
1682 unsigned int sub_offset;
1683 unsigned int print_len;
1684 unsigned int print_offset;
1686 cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
1688 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
1693 oparms.desired_access = FILE_READ_ATTRIBUTES;
1694 oparms.disposition = FILE_OPEN;
1695 oparms.create_options = 0;
1697 oparms.reconnect = false;
1699 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov,
1701 if (!rc || !err_iov.iov_base) {
1706 err_buf = err_iov.iov_base;
1707 if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) ||
1708 err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE) {
1713 /* open must fail on symlink - reset rc */
1715 symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
1716 sub_len = le16_to_cpu(symlink->SubstituteNameLength);
1717 sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
1718 print_len = le16_to_cpu(symlink->PrintNameLength);
1719 print_offset = le16_to_cpu(symlink->PrintNameOffset);
1721 if (err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) {
1726 if (err_iov.iov_len <
1727 SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) {
1732 *target_path = cifs_strndup_from_utf16(
1733 (char *)symlink->PathBuffer + sub_offset,
1734 sub_len, true, cifs_sb->local_nls);
1735 if (!(*target_path)) {
1739 convert_delimiter(*target_path, '/');
1740 cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
1743 free_rsp_buf(resp_buftype, err_buf);
1748 #ifdef CONFIG_CIFS_ACL
1749 static struct cifs_ntsd *
1750 get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb,
1751 const struct cifs_fid *cifsfid, u32 *pacllen)
1753 struct cifs_ntsd *pntsd = NULL;
1755 int rc = -EOPNOTSUPP;
1756 struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
1759 return ERR_CAST(tlink);
1762 cifs_dbg(FYI, "trying to get acl\n");
1764 rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid,
1765 cifsfid->volatile_fid, (void **)&pntsd, pacllen);
1768 cifs_put_tlink(tlink);
1770 cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen);
1777 static struct cifs_ntsd *
1778 get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
1779 const char *path, u32 *pacllen)
1781 struct cifs_ntsd *pntsd = NULL;
1782 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1785 struct cifs_tcon *tcon;
1786 struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
1787 struct cifs_fid fid;
1788 struct cifs_open_parms oparms;
1791 cifs_dbg(FYI, "get smb3 acl for path %s\n", path);
1793 return ERR_CAST(tlink);
1795 tcon = tlink_tcon(tlink);
1798 if (backup_cred(cifs_sb))
1799 oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
1801 oparms.create_options = 0;
1803 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
1811 oparms.desired_access = READ_CONTROL;
1812 oparms.disposition = FILE_OPEN;
1814 oparms.reconnect = false;
1816 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
1819 rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
1820 fid.volatile_fid, (void **)&pntsd, pacllen);
1821 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
1824 cifs_put_tlink(tlink);
1827 cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen);
1833 #ifdef CONFIG_CIFS_ACL
1835 set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
1836 struct inode *inode, const char *path, int aclflag)
1838 u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
1840 int rc, access_flags = 0;
1841 struct cifs_tcon *tcon;
1842 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
1843 struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
1844 struct cifs_fid fid;
1845 struct cifs_open_parms oparms;
1848 cifs_dbg(FYI, "set smb3 acl for path %s\n", path);
1850 return PTR_ERR(tlink);
1852 tcon = tlink_tcon(tlink);
1855 if (backup_cred(cifs_sb))
1856 oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
1858 oparms.create_options = 0;
1860 if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP)
1861 access_flags = WRITE_OWNER;
1863 access_flags = WRITE_DAC;
1865 utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
1873 oparms.desired_access = access_flags;
1874 oparms.disposition = FILE_OPEN;
1877 oparms.reconnect = false;
1879 rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
1882 rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
1883 fid.volatile_fid, pnntsd, acllen, aclflag);
1884 SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
1887 cifs_put_tlink(tlink);
1891 #endif /* CIFS_ACL */
1893 /* Retrieve an ACL from the server */
1894 static struct cifs_ntsd *
1895 get_smb2_acl(struct cifs_sb_info *cifs_sb,
1896 struct inode *inode, const char *path,
1899 struct cifs_ntsd *pntsd = NULL;
1900 struct cifsFileInfo *open_file = NULL;
1903 open_file = find_readable_file(CIFS_I(inode), true);
1905 return get_smb2_acl_by_path(cifs_sb, path, pacllen);
1907 pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen);
1908 cifsFileInfo_put(open_file);
1913 static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
1914 loff_t offset, loff_t len, bool keep_size)
1916 struct inode *inode;
1917 struct cifsInodeInfo *cifsi;
1918 struct cifsFileInfo *cfile = file->private_data;
1919 struct file_zero_data_information fsctl_buf;
1925 inode = d_inode(cfile->dentry);
1926 cifsi = CIFS_I(inode);
1928 /* if file not oplocked can't be sure whether asking to extend size */
1929 if (!CIFS_CACHE_READ(cifsi))
1930 if (keep_size == false) {
1937 * Must check if file sparse since fallocate -z (zero range) assumes
1938 * non-sparse allocation
1940 if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) {
1947 * need to make sure we are not asked to extend the file since the SMB3
1948 * fsctl does not change the file size. In the future we could change
1949 * this to zero the first part of the range then set the file size
1950 * which for a non sparse file would zero the newly extended range
1952 if (keep_size == false)
1953 if (i_size_read(inode) < offset + len) {
1959 cifs_dbg(FYI, "offset %lld len %lld", offset, len);
1961 fsctl_buf.FileOffset = cpu_to_le64(offset);
1962 fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
1964 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
1965 cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
1966 true /* is_fctl */, (char *)&fsctl_buf,
1967 sizeof(struct file_zero_data_information), NULL, NULL);
1972 static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
1973 loff_t offset, loff_t len)
1975 struct inode *inode;
1976 struct cifsInodeInfo *cifsi;
1977 struct cifsFileInfo *cfile = file->private_data;
1978 struct file_zero_data_information fsctl_buf;
1981 __u8 set_sparse = 1;
1985 inode = d_inode(cfile->dentry);
1986 cifsi = CIFS_I(inode);
1988 /* Need to make file sparse, if not already, before freeing range. */
1989 /* Consider adding equivalent for compressed since it could also work */
1990 if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) {
1996 cifs_dbg(FYI, "offset %lld len %lld", offset, len);
1998 fsctl_buf.FileOffset = cpu_to_le64(offset);
1999 fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
2001 rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
2002 cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
2003 true /* is_fctl */, (char *)&fsctl_buf,
2004 sizeof(struct file_zero_data_information), NULL, NULL);
2009 static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
2010 loff_t off, loff_t len, bool keep_size)
2012 struct inode *inode;
2013 struct cifsInodeInfo *cifsi;
2014 struct cifsFileInfo *cfile = file->private_data;
2015 long rc = -EOPNOTSUPP;
2020 inode = d_inode(cfile->dentry);
2021 cifsi = CIFS_I(inode);
2023 /* if file not oplocked can't be sure whether asking to extend size */
2024 if (!CIFS_CACHE_READ(cifsi))
2025 if (keep_size == false) {
2031 * Files are non-sparse by default so falloc may be a no-op
2032 * Must check if file sparse. If not sparse, and not extending
2033 * then no need to do anything since file already allocated
2035 if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) {
2036 if (keep_size == true)
2038 /* check if extending file */
2039 else if (i_size_read(inode) >= off + len)
2040 /* not extending file and already not sparse */
2042 /* BB: in future add else clause to extend file */
2049 if ((keep_size == true) || (i_size_read(inode) >= off + len)) {
2051 * Check if falloc starts within first few pages of file
2052 * and ends within a few pages of the end of file to
2053 * ensure that most of file is being forced to be
2054 * fallocated now. If so then setting whole file sparse
2055 * ie potentially making a few extra pages at the beginning
2056 * or end of the file non-sparse via set_sparse is harmless.
2058 if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) {
2064 rc = smb2_set_sparse(xid, tcon, cfile, inode, false);
2066 /* BB: else ... in future add code to extend file and set sparse */
2074 static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
2075 loff_t off, loff_t len)
2077 /* KEEP_SIZE already checked for by do_fallocate */
2078 if (mode & FALLOC_FL_PUNCH_HOLE)
2079 return smb3_punch_hole(file, tcon, off, len);
2080 else if (mode & FALLOC_FL_ZERO_RANGE) {
2081 if (mode & FALLOC_FL_KEEP_SIZE)
2082 return smb3_zero_range(file, tcon, off, len, true);
2083 return smb3_zero_range(file, tcon, off, len, false);
2084 } else if (mode == FALLOC_FL_KEEP_SIZE)
2085 return smb3_simple_falloc(file, tcon, off, len, true);
2087 return smb3_simple_falloc(file, tcon, off, len, false);
2093 smb2_downgrade_oplock(struct TCP_Server_Info *server,
2094 struct cifsInodeInfo *cinode, bool set_level2)
2097 server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II,
2100 server->ops->set_oplock_level(cinode, 0, 0, NULL);
2104 smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
2105 unsigned int epoch, bool *purge_cache)
2108 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
2110 if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {
2111 cinode->oplock = CIFS_CACHE_RHW_FLG;
2112 cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",
2113 &cinode->vfs_inode);
2114 } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {
2115 cinode->oplock = CIFS_CACHE_RW_FLG;
2116 cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
2117 &cinode->vfs_inode);
2118 } else if (oplock == SMB2_OPLOCK_LEVEL_II) {
2119 cinode->oplock = CIFS_CACHE_READ_FLG;
2120 cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
2121 &cinode->vfs_inode);
2127 smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
2128 unsigned int epoch, bool *purge_cache)
2130 char message[5] = {0};
2133 if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
2137 if (oplock & SMB2_LEASE_READ_CACHING_HE) {
2138 cinode->oplock |= CIFS_CACHE_READ_FLG;
2139 strcat(message, "R");
2141 if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) {
2142 cinode->oplock |= CIFS_CACHE_HANDLE_FLG;
2143 strcat(message, "H");
2145 if (oplock & SMB2_LEASE_WRITE_CACHING_HE) {
2146 cinode->oplock |= CIFS_CACHE_WRITE_FLG;
2147 strcat(message, "W");
2149 if (!cinode->oplock)
2150 strcat(message, "None");
2151 cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
2152 &cinode->vfs_inode);
2156 smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
2157 unsigned int epoch, bool *purge_cache)
2159 unsigned int old_oplock = cinode->oplock;
2161 smb21_set_oplock_level(cinode, oplock, epoch, purge_cache);
2164 *purge_cache = false;
2165 if (old_oplock == CIFS_CACHE_READ_FLG) {
2166 if (cinode->oplock == CIFS_CACHE_READ_FLG &&
2167 (epoch - cinode->epoch > 0))
2168 *purge_cache = true;
2169 else if (cinode->oplock == CIFS_CACHE_RH_FLG &&
2170 (epoch - cinode->epoch > 1))
2171 *purge_cache = true;
2172 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
2173 (epoch - cinode->epoch > 1))
2174 *purge_cache = true;
2175 else if (cinode->oplock == 0 &&
2176 (epoch - cinode->epoch > 0))
2177 *purge_cache = true;
2178 } else if (old_oplock == CIFS_CACHE_RH_FLG) {
2179 if (cinode->oplock == CIFS_CACHE_RH_FLG &&
2180 (epoch - cinode->epoch > 0))
2181 *purge_cache = true;
2182 else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
2183 (epoch - cinode->epoch > 1))
2184 *purge_cache = true;
2186 cinode->epoch = epoch;
2191 smb2_is_read_op(__u32 oplock)
2193 return oplock == SMB2_OPLOCK_LEVEL_II;
2197 smb21_is_read_op(__u32 oplock)
2199 return (oplock & SMB2_LEASE_READ_CACHING_HE) &&
2200 !(oplock & SMB2_LEASE_WRITE_CACHING_HE);
2204 map_oplock_to_lease(u8 oplock)
2206 if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE)
2207 return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING;
2208 else if (oplock == SMB2_OPLOCK_LEVEL_II)
2209 return SMB2_LEASE_READ_CACHING;
2210 else if (oplock == SMB2_OPLOCK_LEVEL_BATCH)
2211 return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING |
2212 SMB2_LEASE_WRITE_CACHING;
2217 smb2_create_lease_buf(u8 *lease_key, u8 oplock)
2219 struct create_lease *buf;
2221 buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
2225 memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE);
2226 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
2228 buf->ccontext.DataOffset = cpu_to_le16(offsetof
2229 (struct create_lease, lcontext));
2230 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context));
2231 buf->ccontext.NameOffset = cpu_to_le16(offsetof
2232 (struct create_lease, Name));
2233 buf->ccontext.NameLength = cpu_to_le16(4);
2234 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
2243 smb3_create_lease_buf(u8 *lease_key, u8 oplock)
2245 struct create_lease_v2 *buf;
2247 buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL);
2251 memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE);
2252 buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
2254 buf->ccontext.DataOffset = cpu_to_le16(offsetof
2255 (struct create_lease_v2, lcontext));
2256 buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2));
2257 buf->ccontext.NameOffset = cpu_to_le16(offsetof
2258 (struct create_lease_v2, Name));
2259 buf->ccontext.NameLength = cpu_to_le16(4);
2260 /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
2269 smb2_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key)
2271 struct create_lease *lc = (struct create_lease *)buf;
2273 *epoch = 0; /* not used */
2274 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
2275 return SMB2_OPLOCK_LEVEL_NOCHANGE;
2276 return le32_to_cpu(lc->lcontext.LeaseState);
2280 smb3_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key)
2282 struct create_lease_v2 *lc = (struct create_lease_v2 *)buf;
2284 *epoch = le16_to_cpu(lc->lcontext.Epoch);
2285 if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
2286 return SMB2_OPLOCK_LEVEL_NOCHANGE;
2288 memcpy(lease_key, &lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE);
2289 return le32_to_cpu(lc->lcontext.LeaseState);
2293 smb2_wp_retry_size(struct inode *inode)
2295 return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize,
2296 SMB2_MAX_BUFFER_SIZE);
2300 smb2_dir_needs_close(struct cifsFileInfo *cfile)
2302 return !cfile->invalidHandle;
2306 fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len,
2307 struct smb_rqst *old_rq)
2309 struct smb2_sync_hdr *shdr =
2310 (struct smb2_sync_hdr *)old_rq->rq_iov[0].iov_base;
2312 memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr));
2313 tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM;
2314 tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len);
2315 tr_hdr->Flags = cpu_to_le16(0x01);
2316 get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CMM_NONCE);
2317 memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8);
2320 /* We can not use the normal sg_set_buf() as we will sometimes pass a
2321 * stack object as buf.
2323 static inline void smb2_sg_set_buf(struct scatterlist *sg, const void *buf,
2324 unsigned int buflen)
2326 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
2330 * rqst->rq_iov[0] is transform header
2331 * rqst->rq_iov[1+] data to be encrypted/decrypted
2333 static struct scatterlist *
2334 init_sg(struct smb_rqst *rqst, u8 *sign)
2336 unsigned int sg_len = rqst->rq_nvec + rqst->rq_npages + 1;
2337 unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20;
2338 struct scatterlist *sg;
2342 sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL);
2346 sg_init_table(sg, sg_len);
2347 smb2_sg_set_buf(&sg[0], rqst->rq_iov[0].iov_base + 20, assoc_data_len);
2348 for (i = 1; i < rqst->rq_nvec; i++)
2349 smb2_sg_set_buf(&sg[i], rqst->rq_iov[i].iov_base,
2350 rqst->rq_iov[i].iov_len);
2351 for (j = 0; i < sg_len - 1; i++, j++) {
2352 unsigned int len, offset;
2354 rqst_page_get_length(rqst, j, &len, &offset);
2355 sg_set_page(&sg[i], rqst->rq_pages[j], len, offset);
2357 smb2_sg_set_buf(&sg[sg_len - 1], sign, SMB2_SIGNATURE_SIZE);
2362 smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key)
2364 struct cifs_ses *ses;
2367 spin_lock(&cifs_tcp_ses_lock);
2368 list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
2369 if (ses->Suid != ses_id)
2371 ses_enc_key = enc ? ses->smb3encryptionkey :
2372 ses->smb3decryptionkey;
2373 memcpy(key, ses_enc_key, SMB3_SIGN_KEY_SIZE);
2374 spin_unlock(&cifs_tcp_ses_lock);
2377 spin_unlock(&cifs_tcp_ses_lock);
2382 * Encrypt or decrypt @rqst message. @rqst[0] has the following format:
2383 * iov[0] - transform header (associate data),
2384 * iov[1-N] - SMB2 header and pages - data to encrypt.
2385 * On success return encrypted data in iov[1-N] and pages, leave iov[0]
2389 crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc)
2391 struct smb2_transform_hdr *tr_hdr =
2392 (struct smb2_transform_hdr *)rqst->rq_iov[0].iov_base;
2393 unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20;
2395 struct scatterlist *sg;
2396 u8 sign[SMB2_SIGNATURE_SIZE] = {};
2397 u8 key[SMB3_SIGN_KEY_SIZE];
2398 struct aead_request *req;
2400 unsigned int iv_len;
2401 DECLARE_CRYPTO_WAIT(wait);
2402 struct crypto_aead *tfm;
2403 unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
2405 rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key);
2407 cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__,
2412 rc = smb3_crypto_aead_allocate(server);
2414 cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__);
2418 tfm = enc ? server->secmech.ccmaesencrypt :
2419 server->secmech.ccmaesdecrypt;
2420 rc = crypto_aead_setkey(tfm, key, SMB3_SIGN_KEY_SIZE);
2422 cifs_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc);
2426 rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE);
2428 cifs_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc);
2432 req = aead_request_alloc(tfm, GFP_KERNEL);
2434 cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__);
2439 memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE);
2440 crypt_len += SMB2_SIGNATURE_SIZE;
2443 sg = init_sg(rqst, sign);
2445 cifs_dbg(VFS, "%s: Failed to init sg", __func__);
2450 iv_len = crypto_aead_ivsize(tfm);
2451 iv = kzalloc(iv_len, GFP_KERNEL);
2453 cifs_dbg(VFS, "%s: Failed to alloc IV", __func__);
2458 memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CMM_NONCE);
2460 aead_request_set_crypt(req, sg, sg, crypt_len, iv);
2461 aead_request_set_ad(req, assoc_data_len);
2463 aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
2464 crypto_req_done, &wait);
2466 rc = crypto_wait_req(enc ? crypto_aead_encrypt(req)
2467 : crypto_aead_decrypt(req), &wait);
2470 memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);
2481 smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq,
2482 struct smb_rqst *old_rq)
2485 struct page **pages;
2486 struct smb2_transform_hdr *tr_hdr;
2487 unsigned int npages = old_rq->rq_npages;
2488 unsigned int orig_len;
2492 pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
2496 new_rq->rq_pages = pages;
2497 new_rq->rq_offset = old_rq->rq_offset;
2498 new_rq->rq_npages = old_rq->rq_npages;
2499 new_rq->rq_pagesz = old_rq->rq_pagesz;
2500 new_rq->rq_tailsz = old_rq->rq_tailsz;
2502 for (i = 0; i < npages; i++) {
2503 pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM);
2505 goto err_free_pages;
2508 iov = kmalloc_array(old_rq->rq_nvec + 1, sizeof(struct kvec),
2511 goto err_free_pages;
2513 /* copy all iovs from the old */
2514 memcpy(&iov[1], &old_rq->rq_iov[0],
2515 sizeof(struct kvec) * old_rq->rq_nvec);
2517 new_rq->rq_iov = iov;
2518 new_rq->rq_nvec = old_rq->rq_nvec + 1;
2520 tr_hdr = kmalloc(sizeof(struct smb2_transform_hdr), GFP_KERNEL);
2524 orig_len = smb_rqst_len(server, old_rq);
2526 /* fill the 2nd iov with a transform header */
2527 fill_transform_hdr(tr_hdr, orig_len, old_rq);
2528 new_rq->rq_iov[0].iov_base = tr_hdr;
2529 new_rq->rq_iov[0].iov_len = sizeof(struct smb2_transform_hdr);
2531 /* copy pages form the old */
2532 for (i = 0; i < npages; i++) {
2534 unsigned int offset, len;
2536 rqst_page_get_length(new_rq, i, &len, &offset);
2538 dst = (char *) kmap(new_rq->rq_pages[i]) + offset;
2539 src = (char *) kmap(old_rq->rq_pages[i]) + offset;
2541 memcpy(dst, src, len);
2542 kunmap(new_rq->rq_pages[i]);
2543 kunmap(old_rq->rq_pages[i]);
2546 rc = crypt_message(server, new_rq, 1);
2547 cifs_dbg(FYI, "encrypt message returned %d", rc);
2549 goto err_free_tr_hdr;
2558 for (i = i - 1; i >= 0; i--)
2565 smb3_free_transform_rq(struct smb_rqst *rqst)
2567 int i = rqst->rq_npages - 1;
2570 put_page(rqst->rq_pages[i]);
2571 kfree(rqst->rq_pages);
2572 /* free transform header */
2573 kfree(rqst->rq_iov[0].iov_base);
2574 kfree(rqst->rq_iov);
2578 smb3_is_transform_hdr(void *buf)
2580 struct smb2_transform_hdr *trhdr = buf;
2582 return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM;
2586 decrypt_raw_data(struct TCP_Server_Info *server, char *buf,
2587 unsigned int buf_data_size, struct page **pages,
2588 unsigned int npages, unsigned int page_data_size)
2591 struct smb_rqst rqst = {NULL};
2594 iov[0].iov_base = buf;
2595 iov[0].iov_len = sizeof(struct smb2_transform_hdr);
2596 iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr);
2597 iov[1].iov_len = buf_data_size;
2601 rqst.rq_pages = pages;
2602 rqst.rq_npages = npages;
2603 rqst.rq_pagesz = PAGE_SIZE;
2604 rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE;
2606 rc = crypt_message(server, &rqst, 0);
2607 cifs_dbg(FYI, "decrypt message returned %d\n", rc);
2612 memmove(buf, iov[1].iov_base, buf_data_size);
2614 server->total_read = buf_data_size + page_data_size;
2620 read_data_into_pages(struct TCP_Server_Info *server, struct page **pages,
2621 unsigned int npages, unsigned int len)
2626 for (i = 0; i < npages; i++) {
2627 struct page *page = pages[i];
2631 if (len >= PAGE_SIZE) {
2632 /* enough data to fill the page */
2636 zero_user(page, len, PAGE_SIZE - len);
2639 length = cifs_read_page_from_socket(server, page, 0, n);
2642 server->total_read += length;
2649 init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size,
2650 unsigned int cur_off, struct bio_vec **page_vec)
2652 struct bio_vec *bvec;
2655 bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL);
2659 for (i = 0; i < npages; i++) {
2660 bvec[i].bv_page = pages[i];
2661 bvec[i].bv_offset = (i == 0) ? cur_off : 0;
2662 bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size);
2663 data_size -= bvec[i].bv_len;
2666 if (data_size != 0) {
2667 cifs_dbg(VFS, "%s: something went wrong\n", __func__);
2677 handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid,
2678 char *buf, unsigned int buf_len, struct page **pages,
2679 unsigned int npages, unsigned int page_data_size)
2681 unsigned int data_offset;
2682 unsigned int data_len;
2683 unsigned int cur_off;
2684 unsigned int cur_page_idx;
2685 unsigned int pad_len;
2686 struct cifs_readdata *rdata = mid->callback_data;
2687 struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
2688 struct bio_vec *bvec = NULL;
2689 struct iov_iter iter;
2692 bool use_rdma_mr = false;
2694 if (shdr->Command != SMB2_READ) {
2695 cifs_dbg(VFS, "only big read responses are supported\n");
2699 if (server->ops->is_session_expired &&
2700 server->ops->is_session_expired(buf)) {
2701 cifs_reconnect(server);
2702 wake_up(&server->response_q);
2706 if (server->ops->is_status_pending &&
2707 server->ops->is_status_pending(buf, server, 0))
2710 rdata->result = server->ops->map_error(buf, false);
2711 if (rdata->result != 0) {
2712 cifs_dbg(FYI, "%s: server returned error %d\n",
2713 __func__, rdata->result);
2714 dequeue_mid(mid, rdata->result);
2718 data_offset = server->ops->read_data_offset(buf);
2719 #ifdef CONFIG_CIFS_SMB_DIRECT
2720 use_rdma_mr = rdata->mr;
2722 data_len = server->ops->read_data_length(buf, use_rdma_mr);
2724 if (data_offset < server->vals->read_rsp_size) {
2726 * win2k8 sometimes sends an offset of 0 when the read
2727 * is beyond the EOF. Treat it as if the data starts just after
2730 cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n",
2731 __func__, data_offset);
2732 data_offset = server->vals->read_rsp_size;
2733 } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) {
2734 /* data_offset is beyond the end of smallbuf */
2735 cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n",
2736 __func__, data_offset);
2737 rdata->result = -EIO;
2738 dequeue_mid(mid, rdata->result);
2742 pad_len = data_offset - server->vals->read_rsp_size;
2744 if (buf_len <= data_offset) {
2745 /* read response payload is in pages */
2746 cur_page_idx = pad_len / PAGE_SIZE;
2747 cur_off = pad_len % PAGE_SIZE;
2749 if (cur_page_idx != 0) {
2750 /* data offset is beyond the 1st page of response */
2751 cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n",
2752 __func__, data_offset);
2753 rdata->result = -EIO;
2754 dequeue_mid(mid, rdata->result);
2758 if (data_len > page_data_size - pad_len) {
2759 /* data_len is corrupt -- discard frame */
2760 rdata->result = -EIO;
2761 dequeue_mid(mid, rdata->result);
2765 rdata->result = init_read_bvec(pages, npages, page_data_size,
2767 if (rdata->result != 0) {
2768 dequeue_mid(mid, rdata->result);
2772 iov_iter_bvec(&iter, WRITE | ITER_BVEC, bvec, npages, data_len);
2773 } else if (buf_len >= data_offset + data_len) {
2774 /* read response payload is in buf */
2775 WARN_ONCE(npages > 0, "read data can be either in buf or in pages");
2776 iov.iov_base = buf + data_offset;
2777 iov.iov_len = data_len;
2778 iov_iter_kvec(&iter, WRITE | ITER_KVEC, &iov, 1, data_len);
2780 /* read response payload cannot be in both buf and pages */
2781 WARN_ONCE(1, "buf can not contain only a part of read data");
2782 rdata->result = -EIO;
2783 dequeue_mid(mid, rdata->result);
2787 /* set up first iov for signature check */
2788 rdata->iov[0].iov_base = buf;
2789 rdata->iov[0].iov_len = 4;
2790 rdata->iov[1].iov_base = buf + 4;
2791 rdata->iov[1].iov_len = server->vals->read_rsp_size - 4;
2792 cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n",
2793 rdata->iov[0].iov_base, server->vals->read_rsp_size);
2795 length = rdata->copy_into_pages(server, rdata, &iter);
2802 dequeue_mid(mid, false);
2807 receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid)
2809 char *buf = server->smallbuf;
2810 struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf;
2811 unsigned int npages;
2812 struct page **pages;
2814 unsigned int buflen = server->pdu_size;
2818 len = min_t(unsigned int, buflen, server->vals->read_rsp_size +
2819 sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1;
2821 rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len);
2824 server->total_read += rc;
2826 len = le32_to_cpu(tr_hdr->OriginalMessageSize) -
2827 server->vals->read_rsp_size;
2828 npages = DIV_ROUND_UP(len, PAGE_SIZE);
2830 pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
2836 for (; i < npages; i++) {
2837 pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM);
2844 /* read read data into pages */
2845 rc = read_data_into_pages(server, pages, npages, len);
2849 rc = cifs_discard_remaining_data(server);
2853 rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size,
2854 pages, npages, len);
2858 *mid = smb2_find_mid(server, buf);
2860 cifs_dbg(FYI, "mid not found\n");
2862 cifs_dbg(FYI, "mid found\n");
2863 (*mid)->decrypted = true;
2864 rc = handle_read_data(server, *mid, buf,
2865 server->vals->read_rsp_size,
2866 pages, npages, len);
2870 for (i = i - 1; i >= 0; i--)
2875 cifs_discard_remaining_data(server);
2880 receive_encrypted_standard(struct TCP_Server_Info *server,
2881 struct mid_q_entry **mid)
2884 char *buf = server->smallbuf;
2885 unsigned int pdu_length = server->pdu_size;
2886 unsigned int buf_size;
2887 struct mid_q_entry *mid_entry;
2889 /* switch to large buffer if too big for a small one */
2890 if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE) {
2891 server->large_buf = true;
2892 memcpy(server->bigbuf, buf, server->total_read);
2893 buf = server->bigbuf;
2896 /* now read the rest */
2897 length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1,
2898 pdu_length - HEADER_SIZE(server) + 1);
2901 server->total_read += length;
2903 buf_size = pdu_length - sizeof(struct smb2_transform_hdr);
2904 length = decrypt_raw_data(server, buf, buf_size, NULL, 0, 0);
2908 mid_entry = smb2_find_mid(server, buf);
2909 if (mid_entry == NULL)
2910 cifs_dbg(FYI, "mid not found\n");
2912 cifs_dbg(FYI, "mid found\n");
2913 mid_entry->decrypted = true;
2918 if (mid_entry && mid_entry->handle)
2919 return mid_entry->handle(server, mid_entry);
2921 return cifs_handle_standard(server, mid_entry);
2925 smb3_receive_transform(struct TCP_Server_Info *server, struct mid_q_entry **mid)
2927 char *buf = server->smallbuf;
2928 unsigned int pdu_length = server->pdu_size;
2929 struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf;
2930 unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
2932 if (pdu_length < sizeof(struct smb2_transform_hdr) +
2933 sizeof(struct smb2_sync_hdr)) {
2934 cifs_dbg(VFS, "Transform message is too small (%u)\n",
2936 cifs_reconnect(server);
2937 wake_up(&server->response_q);
2938 return -ECONNABORTED;
2941 if (pdu_length < orig_len + sizeof(struct smb2_transform_hdr)) {
2942 cifs_dbg(VFS, "Transform message is broken\n");
2943 cifs_reconnect(server);
2944 wake_up(&server->response_q);
2945 return -ECONNABORTED;
2948 if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server))
2949 return receive_encrypted_read(server, mid);
2951 return receive_encrypted_standard(server, mid);
2955 smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid)
2957 char *buf = server->large_buf ? server->bigbuf : server->smallbuf;
2959 return handle_read_data(server, mid, buf, server->pdu_size,
2964 smb2_next_header(char *buf)
2966 struct smb2_sync_hdr *hdr = (struct smb2_sync_hdr *)buf;
2967 struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf;
2969 if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM)
2970 return sizeof(struct smb2_transform_hdr) +
2971 le32_to_cpu(t_hdr->OriginalMessageSize);
2973 return le32_to_cpu(hdr->NextCommand);
2976 struct smb_version_operations smb20_operations = {
2977 .compare_fids = smb2_compare_fids,
2978 .setup_request = smb2_setup_request,
2979 .setup_async_request = smb2_setup_async_request,
2980 .check_receive = smb2_check_receive,
2981 .add_credits = smb2_add_credits,
2982 .set_credits = smb2_set_credits,
2983 .get_credits_field = smb2_get_credits_field,
2984 .get_credits = smb2_get_credits,
2985 .wait_mtu_credits = cifs_wait_mtu_credits,
2986 .get_next_mid = smb2_get_next_mid,
2987 .read_data_offset = smb2_read_data_offset,
2988 .read_data_length = smb2_read_data_length,
2989 .map_error = map_smb2_to_linux_error,
2990 .find_mid = smb2_find_mid,
2991 .check_message = smb2_check_message,
2992 .dump_detail = smb2_dump_detail,
2993 .clear_stats = smb2_clear_stats,
2994 .print_stats = smb2_print_stats,
2995 .is_oplock_break = smb2_is_valid_oplock_break,
2996 .handle_cancelled_mid = smb2_handle_cancelled_mid,
2997 .downgrade_oplock = smb2_downgrade_oplock,
2998 .need_neg = smb2_need_neg,
2999 .negotiate = smb2_negotiate,
3000 .negotiate_wsize = smb2_negotiate_wsize,
3001 .negotiate_rsize = smb2_negotiate_rsize,
3002 .sess_setup = SMB2_sess_setup,
3003 .logoff = SMB2_logoff,
3004 .tree_connect = SMB2_tcon,
3005 .tree_disconnect = SMB2_tdis,
3006 .qfs_tcon = smb2_qfs_tcon,
3007 .is_path_accessible = smb2_is_path_accessible,
3008 .can_echo = smb2_can_echo,
3010 .query_path_info = smb2_query_path_info,
3011 .get_srv_inum = smb2_get_srv_inum,
3012 .query_file_info = smb2_query_file_info,
3013 .set_path_size = smb2_set_path_size,
3014 .set_file_size = smb2_set_file_size,
3015 .set_file_info = smb2_set_file_info,
3016 .set_compression = smb2_set_compression,
3017 .mkdir = smb2_mkdir,
3018 .mkdir_setinfo = smb2_mkdir_setinfo,
3019 .rmdir = smb2_rmdir,
3020 .unlink = smb2_unlink,
3021 .rename = smb2_rename_path,
3022 .create_hardlink = smb2_create_hardlink,
3023 .query_symlink = smb2_query_symlink,
3024 .query_mf_symlink = smb3_query_mf_symlink,
3025 .create_mf_symlink = smb3_create_mf_symlink,
3026 .open = smb2_open_file,
3027 .set_fid = smb2_set_fid,
3028 .close = smb2_close_file,
3029 .flush = smb2_flush_file,
3030 .async_readv = smb2_async_readv,
3031 .async_writev = smb2_async_writev,
3032 .sync_read = smb2_sync_read,
3033 .sync_write = smb2_sync_write,
3034 .query_dir_first = smb2_query_dir_first,
3035 .query_dir_next = smb2_query_dir_next,
3036 .close_dir = smb2_close_dir,
3037 .calc_smb_size = smb2_calc_size,
3038 .is_status_pending = smb2_is_status_pending,
3039 .is_session_expired = smb2_is_session_expired,
3040 .oplock_response = smb2_oplock_response,
3041 .queryfs = smb2_queryfs,
3042 .mand_lock = smb2_mand_lock,
3043 .mand_unlock_range = smb2_unlock_range,
3044 .push_mand_locks = smb2_push_mandatory_locks,
3045 .get_lease_key = smb2_get_lease_key,
3046 .set_lease_key = smb2_set_lease_key,
3047 .new_lease_key = smb2_new_lease_key,
3048 .calc_signature = smb2_calc_signature,
3049 .is_read_op = smb2_is_read_op,
3050 .set_oplock_level = smb2_set_oplock_level,
3051 .create_lease_buf = smb2_create_lease_buf,
3052 .parse_lease_buf = smb2_parse_lease_buf,
3053 .copychunk_range = smb2_copychunk_range,
3054 .wp_retry_size = smb2_wp_retry_size,
3055 .dir_needs_close = smb2_dir_needs_close,
3056 .get_dfs_refer = smb2_get_dfs_refer,
3057 .select_sectype = smb2_select_sectype,
3058 #ifdef CONFIG_CIFS_XATTR
3059 .query_all_EAs = smb2_query_eas,
3060 .set_EA = smb2_set_ea,
3061 #endif /* CIFS_XATTR */
3062 #ifdef CONFIG_CIFS_ACL
3063 .get_acl = get_smb2_acl,
3064 .get_acl_by_fid = get_smb2_acl_by_fid,
3065 .set_acl = set_smb2_acl,
3066 #endif /* CIFS_ACL */
3067 .next_header = smb2_next_header,
3070 struct smb_version_operations smb21_operations = {
3071 .compare_fids = smb2_compare_fids,
3072 .setup_request = smb2_setup_request,
3073 .setup_async_request = smb2_setup_async_request,
3074 .check_receive = smb2_check_receive,
3075 .add_credits = smb2_add_credits,
3076 .set_credits = smb2_set_credits,
3077 .get_credits_field = smb2_get_credits_field,
3078 .get_credits = smb2_get_credits,
3079 .wait_mtu_credits = smb2_wait_mtu_credits,
3080 .get_next_mid = smb2_get_next_mid,
3081 .read_data_offset = smb2_read_data_offset,
3082 .read_data_length = smb2_read_data_length,
3083 .map_error = map_smb2_to_linux_error,
3084 .find_mid = smb2_find_mid,
3085 .check_message = smb2_check_message,
3086 .dump_detail = smb2_dump_detail,
3087 .clear_stats = smb2_clear_stats,
3088 .print_stats = smb2_print_stats,
3089 .is_oplock_break = smb2_is_valid_oplock_break,
3090 .handle_cancelled_mid = smb2_handle_cancelled_mid,
3091 .downgrade_oplock = smb2_downgrade_oplock,
3092 .need_neg = smb2_need_neg,
3093 .negotiate = smb2_negotiate,
3094 .negotiate_wsize = smb2_negotiate_wsize,
3095 .negotiate_rsize = smb2_negotiate_rsize,
3096 .sess_setup = SMB2_sess_setup,
3097 .logoff = SMB2_logoff,
3098 .tree_connect = SMB2_tcon,
3099 .tree_disconnect = SMB2_tdis,
3100 .qfs_tcon = smb2_qfs_tcon,
3101 .is_path_accessible = smb2_is_path_accessible,
3102 .can_echo = smb2_can_echo,
3104 .query_path_info = smb2_query_path_info,
3105 .get_srv_inum = smb2_get_srv_inum,
3106 .query_file_info = smb2_query_file_info,
3107 .set_path_size = smb2_set_path_size,
3108 .set_file_size = smb2_set_file_size,
3109 .set_file_info = smb2_set_file_info,
3110 .set_compression = smb2_set_compression,
3111 .mkdir = smb2_mkdir,
3112 .mkdir_setinfo = smb2_mkdir_setinfo,
3113 .rmdir = smb2_rmdir,
3114 .unlink = smb2_unlink,
3115 .rename = smb2_rename_path,
3116 .create_hardlink = smb2_create_hardlink,
3117 .query_symlink = smb2_query_symlink,
3118 .query_mf_symlink = smb3_query_mf_symlink,
3119 .create_mf_symlink = smb3_create_mf_symlink,
3120 .open = smb2_open_file,
3121 .set_fid = smb2_set_fid,
3122 .close = smb2_close_file,
3123 .flush = smb2_flush_file,
3124 .async_readv = smb2_async_readv,
3125 .async_writev = smb2_async_writev,
3126 .sync_read = smb2_sync_read,
3127 .sync_write = smb2_sync_write,
3128 .query_dir_first = smb2_query_dir_first,
3129 .query_dir_next = smb2_query_dir_next,
3130 .close_dir = smb2_close_dir,
3131 .calc_smb_size = smb2_calc_size,
3132 .is_status_pending = smb2_is_status_pending,
3133 .is_session_expired = smb2_is_session_expired,
3134 .oplock_response = smb2_oplock_response,
3135 .queryfs = smb2_queryfs,
3136 .mand_lock = smb2_mand_lock,
3137 .mand_unlock_range = smb2_unlock_range,
3138 .push_mand_locks = smb2_push_mandatory_locks,
3139 .get_lease_key = smb2_get_lease_key,
3140 .set_lease_key = smb2_set_lease_key,
3141 .new_lease_key = smb2_new_lease_key,
3142 .calc_signature = smb2_calc_signature,
3143 .is_read_op = smb21_is_read_op,
3144 .set_oplock_level = smb21_set_oplock_level,
3145 .create_lease_buf = smb2_create_lease_buf,
3146 .parse_lease_buf = smb2_parse_lease_buf,
3147 .copychunk_range = smb2_copychunk_range,
3148 .wp_retry_size = smb2_wp_retry_size,
3149 .dir_needs_close = smb2_dir_needs_close,
3150 .enum_snapshots = smb3_enum_snapshots,
3151 .get_dfs_refer = smb2_get_dfs_refer,
3152 .select_sectype = smb2_select_sectype,
3153 #ifdef CONFIG_CIFS_XATTR
3154 .query_all_EAs = smb2_query_eas,
3155 .set_EA = smb2_set_ea,
3156 #endif /* CIFS_XATTR */
3157 #ifdef CONFIG_CIFS_ACL
3158 .get_acl = get_smb2_acl,
3159 .get_acl_by_fid = get_smb2_acl_by_fid,
3160 .set_acl = set_smb2_acl,
3161 #endif /* CIFS_ACL */
3162 .next_header = smb2_next_header,
3165 struct smb_version_operations smb30_operations = {
3166 .compare_fids = smb2_compare_fids,
3167 .setup_request = smb2_setup_request,
3168 .setup_async_request = smb2_setup_async_request,
3169 .check_receive = smb2_check_receive,
3170 .add_credits = smb2_add_credits,
3171 .set_credits = smb2_set_credits,
3172 .get_credits_field = smb2_get_credits_field,
3173 .get_credits = smb2_get_credits,
3174 .wait_mtu_credits = smb2_wait_mtu_credits,
3175 .get_next_mid = smb2_get_next_mid,
3176 .read_data_offset = smb2_read_data_offset,
3177 .read_data_length = smb2_read_data_length,
3178 .map_error = map_smb2_to_linux_error,
3179 .find_mid = smb2_find_mid,
3180 .check_message = smb2_check_message,
3181 .dump_detail = smb2_dump_detail,
3182 .clear_stats = smb2_clear_stats,
3183 .print_stats = smb2_print_stats,
3184 .dump_share_caps = smb2_dump_share_caps,
3185 .is_oplock_break = smb2_is_valid_oplock_break,
3186 .handle_cancelled_mid = smb2_handle_cancelled_mid,
3187 .downgrade_oplock = smb2_downgrade_oplock,
3188 .need_neg = smb2_need_neg,
3189 .negotiate = smb2_negotiate,
3190 .negotiate_wsize = smb2_negotiate_wsize,
3191 .negotiate_rsize = smb2_negotiate_rsize,
3192 .sess_setup = SMB2_sess_setup,
3193 .logoff = SMB2_logoff,
3194 .tree_connect = SMB2_tcon,
3195 .tree_disconnect = SMB2_tdis,
3196 .qfs_tcon = smb3_qfs_tcon,
3197 .is_path_accessible = smb2_is_path_accessible,
3198 .can_echo = smb2_can_echo,
3200 .query_path_info = smb2_query_path_info,
3201 .get_srv_inum = smb2_get_srv_inum,
3202 .query_file_info = smb2_query_file_info,
3203 .set_path_size = smb2_set_path_size,
3204 .set_file_size = smb2_set_file_size,
3205 .set_file_info = smb2_set_file_info,
3206 .set_compression = smb2_set_compression,
3207 .mkdir = smb2_mkdir,
3208 .mkdir_setinfo = smb2_mkdir_setinfo,
3209 .rmdir = smb2_rmdir,
3210 .unlink = smb2_unlink,
3211 .rename = smb2_rename_path,
3212 .create_hardlink = smb2_create_hardlink,
3213 .query_symlink = smb2_query_symlink,
3214 .query_mf_symlink = smb3_query_mf_symlink,
3215 .create_mf_symlink = smb3_create_mf_symlink,
3216 .open = smb2_open_file,
3217 .set_fid = smb2_set_fid,
3218 .close = smb2_close_file,
3219 .flush = smb2_flush_file,
3220 .async_readv = smb2_async_readv,
3221 .async_writev = smb2_async_writev,
3222 .sync_read = smb2_sync_read,
3223 .sync_write = smb2_sync_write,
3224 .query_dir_first = smb2_query_dir_first,
3225 .query_dir_next = smb2_query_dir_next,
3226 .close_dir = smb2_close_dir,
3227 .calc_smb_size = smb2_calc_size,
3228 .is_status_pending = smb2_is_status_pending,
3229 .is_session_expired = smb2_is_session_expired,
3230 .oplock_response = smb2_oplock_response,
3231 .queryfs = smb2_queryfs,
3232 .mand_lock = smb2_mand_lock,
3233 .mand_unlock_range = smb2_unlock_range,
3234 .push_mand_locks = smb2_push_mandatory_locks,
3235 .get_lease_key = smb2_get_lease_key,
3236 .set_lease_key = smb2_set_lease_key,
3237 .new_lease_key = smb2_new_lease_key,
3238 .generate_signingkey = generate_smb30signingkey,
3239 .calc_signature = smb3_calc_signature,
3240 .set_integrity = smb3_set_integrity,
3241 .is_read_op = smb21_is_read_op,
3242 .set_oplock_level = smb3_set_oplock_level,
3243 .create_lease_buf = smb3_create_lease_buf,
3244 .parse_lease_buf = smb3_parse_lease_buf,
3245 .copychunk_range = smb2_copychunk_range,
3246 .duplicate_extents = smb2_duplicate_extents,
3247 .validate_negotiate = smb3_validate_negotiate,
3248 .wp_retry_size = smb2_wp_retry_size,
3249 .dir_needs_close = smb2_dir_needs_close,
3250 .fallocate = smb3_fallocate,
3251 .enum_snapshots = smb3_enum_snapshots,
3252 .init_transform_rq = smb3_init_transform_rq,
3253 .free_transform_rq = smb3_free_transform_rq,
3254 .is_transform_hdr = smb3_is_transform_hdr,
3255 .receive_transform = smb3_receive_transform,
3256 .get_dfs_refer = smb2_get_dfs_refer,
3257 .select_sectype = smb2_select_sectype,
3258 #ifdef CONFIG_CIFS_XATTR
3259 .query_all_EAs = smb2_query_eas,
3260 .set_EA = smb2_set_ea,
3261 #endif /* CIFS_XATTR */
3262 #ifdef CONFIG_CIFS_ACL
3263 .get_acl = get_smb2_acl,
3264 .get_acl_by_fid = get_smb2_acl_by_fid,
3265 .set_acl = set_smb2_acl,
3266 #endif /* CIFS_ACL */
3267 .next_header = smb2_next_header,
3270 #ifdef CONFIG_CIFS_SMB311
3271 struct smb_version_operations smb311_operations = {
3272 .compare_fids = smb2_compare_fids,
3273 .setup_request = smb2_setup_request,
3274 .setup_async_request = smb2_setup_async_request,
3275 .check_receive = smb2_check_receive,
3276 .add_credits = smb2_add_credits,
3277 .set_credits = smb2_set_credits,
3278 .get_credits_field = smb2_get_credits_field,
3279 .get_credits = smb2_get_credits,
3280 .wait_mtu_credits = smb2_wait_mtu_credits,
3281 .get_next_mid = smb2_get_next_mid,
3282 .read_data_offset = smb2_read_data_offset,
3283 .read_data_length = smb2_read_data_length,
3284 .map_error = map_smb2_to_linux_error,
3285 .find_mid = smb2_find_mid,
3286 .check_message = smb2_check_message,
3287 .dump_detail = smb2_dump_detail,
3288 .clear_stats = smb2_clear_stats,
3289 .print_stats = smb2_print_stats,
3290 .dump_share_caps = smb2_dump_share_caps,
3291 .is_oplock_break = smb2_is_valid_oplock_break,
3292 .handle_cancelled_mid = smb2_handle_cancelled_mid,
3293 .downgrade_oplock = smb2_downgrade_oplock,
3294 .need_neg = smb2_need_neg,
3295 .negotiate = smb2_negotiate,
3296 .negotiate_wsize = smb2_negotiate_wsize,
3297 .negotiate_rsize = smb2_negotiate_rsize,
3298 .sess_setup = SMB2_sess_setup,
3299 .logoff = SMB2_logoff,
3300 .tree_connect = SMB2_tcon,
3301 .tree_disconnect = SMB2_tdis,
3302 .qfs_tcon = smb3_qfs_tcon,
3303 .is_path_accessible = smb2_is_path_accessible,
3304 .can_echo = smb2_can_echo,
3306 .query_path_info = smb2_query_path_info,
3307 .get_srv_inum = smb2_get_srv_inum,
3308 .query_file_info = smb2_query_file_info,
3309 .set_path_size = smb2_set_path_size,
3310 .set_file_size = smb2_set_file_size,
3311 .set_file_info = smb2_set_file_info,
3312 .set_compression = smb2_set_compression,
3313 .mkdir = smb2_mkdir,
3314 .mkdir_setinfo = smb2_mkdir_setinfo,
3315 .posix_mkdir = smb311_posix_mkdir,
3316 .rmdir = smb2_rmdir,
3317 .unlink = smb2_unlink,
3318 .rename = smb2_rename_path,
3319 .create_hardlink = smb2_create_hardlink,
3320 .query_symlink = smb2_query_symlink,
3321 .query_mf_symlink = smb3_query_mf_symlink,
3322 .create_mf_symlink = smb3_create_mf_symlink,
3323 .open = smb2_open_file,
3324 .set_fid = smb2_set_fid,
3325 .close = smb2_close_file,
3326 .flush = smb2_flush_file,
3327 .async_readv = smb2_async_readv,
3328 .async_writev = smb2_async_writev,
3329 .sync_read = smb2_sync_read,
3330 .sync_write = smb2_sync_write,
3331 .query_dir_first = smb2_query_dir_first,
3332 .query_dir_next = smb2_query_dir_next,
3333 .close_dir = smb2_close_dir,
3334 .calc_smb_size = smb2_calc_size,
3335 .is_status_pending = smb2_is_status_pending,
3336 .is_session_expired = smb2_is_session_expired,
3337 .oplock_response = smb2_oplock_response,
3338 .queryfs = smb2_queryfs,
3339 .mand_lock = smb2_mand_lock,
3340 .mand_unlock_range = smb2_unlock_range,
3341 .push_mand_locks = smb2_push_mandatory_locks,
3342 .get_lease_key = smb2_get_lease_key,
3343 .set_lease_key = smb2_set_lease_key,
3344 .new_lease_key = smb2_new_lease_key,
3345 .generate_signingkey = generate_smb311signingkey,
3346 .calc_signature = smb3_calc_signature,
3347 .set_integrity = smb3_set_integrity,
3348 .is_read_op = smb21_is_read_op,
3349 .set_oplock_level = smb3_set_oplock_level,
3350 .create_lease_buf = smb3_create_lease_buf,
3351 .parse_lease_buf = smb3_parse_lease_buf,
3352 .copychunk_range = smb2_copychunk_range,
3353 .duplicate_extents = smb2_duplicate_extents,
3354 /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */
3355 .wp_retry_size = smb2_wp_retry_size,
3356 .dir_needs_close = smb2_dir_needs_close,
3357 .fallocate = smb3_fallocate,
3358 .enum_snapshots = smb3_enum_snapshots,
3359 .init_transform_rq = smb3_init_transform_rq,
3360 .free_transform_rq = smb3_free_transform_rq,
3361 .is_transform_hdr = smb3_is_transform_hdr,
3362 .receive_transform = smb3_receive_transform,
3363 .get_dfs_refer = smb2_get_dfs_refer,
3364 .select_sectype = smb2_select_sectype,
3365 #ifdef CONFIG_CIFS_XATTR
3366 .query_all_EAs = smb2_query_eas,
3367 .set_EA = smb2_set_ea,
3368 #endif /* CIFS_XATTR */
3369 .next_header = smb2_next_header,
3371 #endif /* CIFS_SMB311 */
3373 struct smb_version_values smb20_values = {
3374 .version_string = SMB20_VERSION_STRING,
3375 .protocol_id = SMB20_PROT_ID,
3376 .req_capabilities = 0, /* MBZ */
3377 .large_lock_type = 0,
3378 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3379 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3380 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3381 .header_size = sizeof(struct smb2_sync_hdr),
3382 .header_preamble_size = 0,
3383 .max_header_size = MAX_SMB2_HDR_SIZE,
3384 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3385 .lock_cmd = SMB2_LOCK,
3387 .cap_nt_find = SMB2_NT_FIND,
3388 .cap_large_files = SMB2_LARGE_FILES,
3389 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3390 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3391 .create_lease_size = sizeof(struct create_lease),
3394 struct smb_version_values smb21_values = {
3395 .version_string = SMB21_VERSION_STRING,
3396 .protocol_id = SMB21_PROT_ID,
3397 .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */
3398 .large_lock_type = 0,
3399 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3400 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3401 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3402 .header_size = sizeof(struct smb2_sync_hdr),
3403 .header_preamble_size = 0,
3404 .max_header_size = MAX_SMB2_HDR_SIZE,
3405 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3406 .lock_cmd = SMB2_LOCK,
3408 .cap_nt_find = SMB2_NT_FIND,
3409 .cap_large_files = SMB2_LARGE_FILES,
3410 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3411 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3412 .create_lease_size = sizeof(struct create_lease),
3415 struct smb_version_values smb3any_values = {
3416 .version_string = SMB3ANY_VERSION_STRING,
3417 .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
3418 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
3419 .large_lock_type = 0,
3420 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3421 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3422 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3423 .header_size = sizeof(struct smb2_sync_hdr),
3424 .header_preamble_size = 0,
3425 .max_header_size = MAX_SMB2_HDR_SIZE,
3426 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3427 .lock_cmd = SMB2_LOCK,
3429 .cap_nt_find = SMB2_NT_FIND,
3430 .cap_large_files = SMB2_LARGE_FILES,
3431 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3432 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3433 .create_lease_size = sizeof(struct create_lease_v2),
3436 struct smb_version_values smbdefault_values = {
3437 .version_string = SMBDEFAULT_VERSION_STRING,
3438 .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
3439 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
3440 .large_lock_type = 0,
3441 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3442 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3443 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3444 .header_size = sizeof(struct smb2_sync_hdr),
3445 .header_preamble_size = 0,
3446 .max_header_size = MAX_SMB2_HDR_SIZE,
3447 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3448 .lock_cmd = SMB2_LOCK,
3450 .cap_nt_find = SMB2_NT_FIND,
3451 .cap_large_files = SMB2_LARGE_FILES,
3452 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3453 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3454 .create_lease_size = sizeof(struct create_lease_v2),
3457 struct smb_version_values smb30_values = {
3458 .version_string = SMB30_VERSION_STRING,
3459 .protocol_id = SMB30_PROT_ID,
3460 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
3461 .large_lock_type = 0,
3462 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3463 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3464 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3465 .header_size = sizeof(struct smb2_sync_hdr),
3466 .header_preamble_size = 0,
3467 .max_header_size = MAX_SMB2_HDR_SIZE,
3468 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3469 .lock_cmd = SMB2_LOCK,
3471 .cap_nt_find = SMB2_NT_FIND,
3472 .cap_large_files = SMB2_LARGE_FILES,
3473 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3474 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3475 .create_lease_size = sizeof(struct create_lease_v2),
3478 struct smb_version_values smb302_values = {
3479 .version_string = SMB302_VERSION_STRING,
3480 .protocol_id = SMB302_PROT_ID,
3481 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
3482 .large_lock_type = 0,
3483 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3484 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3485 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3486 .header_size = sizeof(struct smb2_sync_hdr),
3487 .header_preamble_size = 0,
3488 .max_header_size = MAX_SMB2_HDR_SIZE,
3489 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3490 .lock_cmd = SMB2_LOCK,
3492 .cap_nt_find = SMB2_NT_FIND,
3493 .cap_large_files = SMB2_LARGE_FILES,
3494 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3495 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3496 .create_lease_size = sizeof(struct create_lease_v2),
3499 #ifdef CONFIG_CIFS_SMB311
3500 struct smb_version_values smb311_values = {
3501 .version_string = SMB311_VERSION_STRING,
3502 .protocol_id = SMB311_PROT_ID,
3503 .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
3504 .large_lock_type = 0,
3505 .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
3506 .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
3507 .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
3508 .header_size = sizeof(struct smb2_sync_hdr),
3509 .header_preamble_size = 0,
3510 .max_header_size = MAX_SMB2_HDR_SIZE,
3511 .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
3512 .lock_cmd = SMB2_LOCK,
3514 .cap_nt_find = SMB2_NT_FIND,
3515 .cap_large_files = SMB2_LARGE_FILES,
3516 .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
3517 .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
3518 .create_lease_size = sizeof(struct create_lease_v2),