1 // SPDX-License-Identifier: LGPL-2.1
4 * Copyright (C) International Business Machines Corp., 2002, 2011
6 * Author(s): Pavel Shilovsky (pshilovsky@samba.org),
7 * Steve French (sfrench@us.ibm.com)
11 #include <linux/stat.h>
12 #include <linux/slab.h>
13 #include <linux/pagemap.h>
14 #include <asm/div64.h>
18 #include "cifsproto.h"
19 #include "cifs_debug.h"
20 #include "cifs_fs_sb.h"
21 #include "cifs_unicode.h"
25 #include "smb2proto.h"
26 #include "cached_dir.h"
27 #include "smb2status.h"
30 free_set_inf_compound(struct smb_rqst
*rqst
)
33 SMB2_set_info_free(&rqst
[1]);
35 SMB2_close_free(&rqst
[2]);
40 struct cifs_open_parms oparms
;
41 struct kvec rsp_iov
[3];
42 struct smb_rqst rqst
[3];
43 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
44 struct kvec qi_iov
[1];
45 struct kvec si_iov
[SMB2_SET_INFO_IOV_SIZE
];
46 struct kvec close_iov
[1];
47 struct smb2_file_rename_info rename_info
;
48 struct smb2_file_link_info link_info
;
52 * note: If cfile is passed, the reference to it is dropped here.
53 * So make sure that you do not reuse cfile after return from this func.
55 * If passing @err_iov and @err_buftype, ensure to make them both large enough (>= 3) to hold all
56 * error responses. Caller is also responsible for freeing them up.
58 static int smb2_compound_op(const unsigned int xid
, struct cifs_tcon
*tcon
,
59 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
60 __u32 desired_access
, __u32 create_disposition
, __u32 create_options
,
61 umode_t mode
, void *ptr
, int command
, struct cifsFileInfo
*cfile
,
62 __u8
**extbuf
, size_t *extbuflen
,
63 struct kvec
*err_iov
, int *err_buftype
)
65 struct cop_vars
*vars
= NULL
;
67 struct smb_rqst
*rqst
;
69 __le16
*utf16_path
= NULL
;
70 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
72 struct cifs_ses
*ses
= tcon
->ses
;
73 struct TCP_Server_Info
*server
;
76 struct smb2_query_info_rsp
*qi_rsp
= NULL
;
77 struct cifs_open_info_data
*idata
;
79 __u8 delete_pending
[8] = {1, 0, 0, 0, 0, 0, 0, 0};
84 vars
= kzalloc(sizeof(*vars
), GFP_ATOMIC
);
87 rqst
= &vars
->rqst
[0];
88 rsp_iov
= &vars
->rsp_iov
[0];
90 server
= cifs_pick_channel(ses
);
92 if (smb3_encryption_required(tcon
))
93 flags
|= CIFS_TRANSFORM_REQ
;
95 resp_buftype
[0] = resp_buftype
[1] = resp_buftype
[2] = CIFS_NO_BUFFER
;
97 /* We already have a handle so we can skip the open */
102 utf16_path
= cifs_convert_path_to_utf16(full_path
, cifs_sb
);
108 vars
->oparms
= (struct cifs_open_parms
) {
110 .desired_access
= desired_access
,
111 .disposition
= create_disposition
,
112 .create_options
= cifs_create_options(cifs_sb
, create_options
),
118 rqst
[num_rqst
].rq_iov
= &vars
->open_iov
[0];
119 rqst
[num_rqst
].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
120 rc
= SMB2_open_init(tcon
, server
,
121 &rqst
[num_rqst
], &oplock
, &vars
->oparms
,
127 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
134 case SMB2_OP_QUERY_INFO
:
135 rqst
[num_rqst
].rq_iov
= &vars
->qi_iov
[0];
136 rqst
[num_rqst
].rq_nvec
= 1;
139 rc
= SMB2_query_info_init(tcon
, server
,
141 cfile
->fid
.persistent_fid
,
142 cfile
->fid
.volatile_fid
,
143 FILE_ALL_INFORMATION
,
145 sizeof(struct smb2_file_all_info
) +
146 PATH_MAX
* 2, 0, NULL
);
148 rc
= SMB2_query_info_init(tcon
, server
,
152 FILE_ALL_INFORMATION
,
154 sizeof(struct smb2_file_all_info
) +
155 PATH_MAX
* 2, 0, NULL
);
157 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
158 smb2_set_related(&rqst
[num_rqst
]);
165 trace_smb3_query_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
,
168 case SMB2_OP_POSIX_QUERY_INFO
:
169 rqst
[num_rqst
].rq_iov
= &vars
->qi_iov
[0];
170 rqst
[num_rqst
].rq_nvec
= 1;
173 rc
= SMB2_query_info_init(tcon
, server
,
175 cfile
->fid
.persistent_fid
,
176 cfile
->fid
.volatile_fid
,
177 SMB_FIND_FILE_POSIX_INFO
,
179 /* TBD: fix following to allow for longer SIDs */
180 sizeof(struct smb311_posix_qinfo
*) + (PATH_MAX
* 2) +
181 (sizeof(struct cifs_sid
) * 2), 0, NULL
);
183 rc
= SMB2_query_info_init(tcon
, server
,
187 SMB_FIND_FILE_POSIX_INFO
,
189 sizeof(struct smb311_posix_qinfo
*) + (PATH_MAX
* 2) +
190 (sizeof(struct cifs_sid
) * 2), 0, NULL
);
192 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
193 smb2_set_related(&rqst
[num_rqst
]);
200 trace_smb3_posix_query_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
203 trace_smb3_delete_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
207 * Directories are created through parameters in the
210 trace_smb3_mkdir_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
213 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
214 rqst
[num_rqst
].rq_nvec
= 1;
216 size
[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
217 data
[0] = &delete_pending
[0];
219 rc
= SMB2_set_info_init(tcon
, server
,
220 &rqst
[num_rqst
], COMPOUND_FID
,
221 COMPOUND_FID
, current
->tgid
,
222 FILE_DISPOSITION_INFORMATION
,
223 SMB2_O_INFO_FILE
, 0, data
, size
);
226 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
227 smb2_set_related(&rqst
[num_rqst
++]);
228 trace_smb3_rmdir_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
230 case SMB2_OP_SET_EOF
:
231 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
232 rqst
[num_rqst
].rq_nvec
= 1;
234 size
[0] = 8; /* sizeof __le64 */
238 rc
= SMB2_set_info_init(tcon
, server
,
240 cfile
->fid
.persistent_fid
,
241 cfile
->fid
.volatile_fid
,
243 FILE_END_OF_FILE_INFORMATION
,
247 rc
= SMB2_set_info_init(tcon
, server
,
252 FILE_END_OF_FILE_INFORMATION
,
256 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
257 smb2_set_related(&rqst
[num_rqst
]);
263 trace_smb3_set_eof_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
265 case SMB2_OP_SET_INFO
:
266 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
267 rqst
[num_rqst
].rq_nvec
= 1;
270 size
[0] = sizeof(FILE_BASIC_INFO
);
274 rc
= SMB2_set_info_init(tcon
, server
,
276 cfile
->fid
.persistent_fid
,
277 cfile
->fid
.volatile_fid
, current
->tgid
,
278 FILE_BASIC_INFORMATION
,
279 SMB2_O_INFO_FILE
, 0, data
, size
);
281 rc
= SMB2_set_info_init(tcon
, server
,
284 COMPOUND_FID
, current
->tgid
,
285 FILE_BASIC_INFORMATION
,
286 SMB2_O_INFO_FILE
, 0, data
, size
);
288 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
289 smb2_set_related(&rqst
[num_rqst
]);
296 trace_smb3_set_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
,
300 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
301 rqst
[num_rqst
].rq_nvec
= 2;
303 len
= (2 * UniStrnlen((wchar_t *)ptr
, PATH_MAX
));
305 vars
->rename_info
.ReplaceIfExists
= 1;
306 vars
->rename_info
.RootDirectory
= 0;
307 vars
->rename_info
.FileNameLength
= cpu_to_le32(len
);
309 size
[0] = sizeof(struct smb2_file_rename_info
);
310 data
[0] = &vars
->rename_info
;
312 size
[1] = len
+ 2 /* null */;
313 data
[1] = (__le16
*)ptr
;
316 rc
= SMB2_set_info_init(tcon
, server
,
318 cfile
->fid
.persistent_fid
,
319 cfile
->fid
.volatile_fid
,
320 current
->tgid
, FILE_RENAME_INFORMATION
,
321 SMB2_O_INFO_FILE
, 0, data
, size
);
323 rc
= SMB2_set_info_init(tcon
, server
,
325 COMPOUND_FID
, COMPOUND_FID
,
326 current
->tgid
, FILE_RENAME_INFORMATION
,
327 SMB2_O_INFO_FILE
, 0, data
, size
);
329 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
330 smb2_set_related(&rqst
[num_rqst
]);
336 trace_smb3_rename_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
338 case SMB2_OP_HARDLINK
:
339 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
340 rqst
[num_rqst
].rq_nvec
= 2;
342 len
= (2 * UniStrnlen((wchar_t *)ptr
, PATH_MAX
));
344 vars
->link_info
.ReplaceIfExists
= 0;
345 vars
->link_info
.RootDirectory
= 0;
346 vars
->link_info
.FileNameLength
= cpu_to_le32(len
);
348 size
[0] = sizeof(struct smb2_file_link_info
);
349 data
[0] = &vars
->link_info
;
351 size
[1] = len
+ 2 /* null */;
352 data
[1] = (__le16
*)ptr
;
354 rc
= SMB2_set_info_init(tcon
, server
,
355 &rqst
[num_rqst
], COMPOUND_FID
,
356 COMPOUND_FID
, current
->tgid
,
357 FILE_LINK_INFORMATION
,
358 SMB2_O_INFO_FILE
, 0, data
, size
);
361 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
362 smb2_set_related(&rqst
[num_rqst
++]);
363 trace_smb3_hardlink_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
366 cifs_dbg(VFS
, "Invalid command\n");
372 /* We already have a handle so we can skip the close */
376 flags
|= CIFS_CP_CREATE_CLOSE_OP
;
377 rqst
[num_rqst
].rq_iov
= &vars
->close_iov
[0];
378 rqst
[num_rqst
].rq_nvec
= 1;
379 rc
= SMB2_close_init(tcon
, server
,
380 &rqst
[num_rqst
], COMPOUND_FID
,
381 COMPOUND_FID
, false);
382 smb2_set_related(&rqst
[num_rqst
]);
389 rc
= compound_send_recv(xid
, ses
, server
,
391 &rqst
[1], &resp_buftype
[1],
394 rc
= compound_send_recv(xid
, ses
, server
,
401 cifsFileInfo_put(cfile
);
403 SMB2_open_free(&rqst
[0]);
404 if (rc
== -EREMCHG
) {
405 pr_warn_once("server share %s deleted\n", tcon
->tree_name
);
406 tcon
->need_reconnect
= true;
410 case SMB2_OP_QUERY_INFO
:
412 if (rc
== 0 && cfile
&& cfile
->symlink_target
) {
413 idata
->symlink_target
= kstrdup(cfile
->symlink_target
, GFP_KERNEL
);
414 if (!idata
->symlink_target
)
418 qi_rsp
= (struct smb2_query_info_rsp
*)
420 rc
= smb2_validate_and_copy_iov(
421 le16_to_cpu(qi_rsp
->OutputBufferOffset
),
422 le32_to_cpu(qi_rsp
->OutputBufferLength
),
423 &rsp_iov
[1], sizeof(idata
->fi
), (char *)&idata
->fi
);
426 SMB2_query_info_free(&rqst
[1]);
428 SMB2_close_free(&rqst
[2]);
430 trace_smb3_query_info_compound_err(xid
, ses
->Suid
,
433 trace_smb3_query_info_compound_done(xid
, ses
->Suid
,
436 case SMB2_OP_POSIX_QUERY_INFO
:
438 if (rc
== 0 && cfile
&& cfile
->symlink_target
) {
439 idata
->symlink_target
= kstrdup(cfile
->symlink_target
, GFP_KERNEL
);
440 if (!idata
->symlink_target
)
444 qi_rsp
= (struct smb2_query_info_rsp
*)
446 rc
= smb2_validate_and_copy_iov(
447 le16_to_cpu(qi_rsp
->OutputBufferOffset
),
448 le32_to_cpu(qi_rsp
->OutputBufferLength
),
449 &rsp_iov
[1], sizeof(idata
->posix_fi
) /* add SIDs */,
450 (char *)&idata
->posix_fi
);
453 unsigned int length
= le32_to_cpu(qi_rsp
->OutputBufferLength
);
455 if (length
> sizeof(idata
->posix_fi
)) {
456 char *base
= (char *)rsp_iov
[1].iov_base
+
457 le16_to_cpu(qi_rsp
->OutputBufferOffset
) +
458 sizeof(idata
->posix_fi
);
459 *extbuflen
= length
- sizeof(idata
->posix_fi
);
460 *extbuf
= kmemdup(base
, *extbuflen
, GFP_KERNEL
);
468 SMB2_query_info_free(&rqst
[1]);
470 SMB2_close_free(&rqst
[2]);
472 trace_smb3_posix_query_info_compound_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
474 trace_smb3_posix_query_info_compound_done(xid
, ses
->Suid
, tcon
->tid
);
478 trace_smb3_delete_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
480 trace_smb3_delete_done(xid
, ses
->Suid
, tcon
->tid
);
482 SMB2_close_free(&rqst
[1]);
486 trace_smb3_mkdir_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
488 trace_smb3_mkdir_done(xid
, ses
->Suid
, tcon
->tid
);
490 SMB2_close_free(&rqst
[1]);
492 case SMB2_OP_HARDLINK
:
494 trace_smb3_hardlink_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
496 trace_smb3_hardlink_done(xid
, ses
->Suid
, tcon
->tid
);
497 free_set_inf_compound(rqst
);
501 trace_smb3_rename_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
503 trace_smb3_rename_done(xid
, ses
->Suid
, tcon
->tid
);
504 free_set_inf_compound(rqst
);
508 trace_smb3_rmdir_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
510 trace_smb3_rmdir_done(xid
, ses
->Suid
, tcon
->tid
);
511 free_set_inf_compound(rqst
);
513 case SMB2_OP_SET_EOF
:
515 trace_smb3_set_eof_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
517 trace_smb3_set_eof_done(xid
, ses
->Suid
, tcon
->tid
);
518 free_set_inf_compound(rqst
);
520 case SMB2_OP_SET_INFO
:
522 trace_smb3_set_info_compound_err(xid
, ses
->Suid
,
525 trace_smb3_set_info_compound_done(xid
, ses
->Suid
,
527 free_set_inf_compound(rqst
);
531 if (rc
&& err_iov
&& err_buftype
) {
532 memcpy(err_iov
, rsp_iov
, 3 * sizeof(*err_iov
));
533 memcpy(err_buftype
, resp_buftype
, 3 * sizeof(*err_buftype
));
535 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
536 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
537 free_rsp_buf(resp_buftype
[2], rsp_iov
[2].iov_base
);
543 int smb2_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
544 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
545 struct cifs_open_info_data
*data
, bool *adjust_tz
, bool *reparse
)
547 __u32 create_options
= 0;
548 struct cifsFileInfo
*cfile
;
549 struct cached_fid
*cfid
= NULL
;
550 struct kvec err_iov
[3] = {};
551 int err_buftype
[3] = {};
558 if (strcmp(full_path
, ""))
561 rc
= open_cached_dir(xid
, tcon
, full_path
, cifs_sb
, false, &cfid
);
562 /* If it is a root and its handle is cached then use it */
564 if (cfid
->file_all_info_is_valid
) {
565 memcpy(&data
->fi
, &cfid
->file_all_info
, sizeof(data
->fi
));
567 rc
= SMB2_query_info(xid
, tcon
, cfid
->fid
.persistent_fid
,
568 cfid
->fid
.volatile_fid
, &data
->fi
);
570 close_cached_dir(cfid
);
574 cifs_get_readable_path(tcon
, full_path
, &cfile
);
575 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
, FILE_READ_ATTRIBUTES
, FILE_OPEN
,
576 create_options
, ACL_NO_MODE
, data
, SMB2_OP_QUERY_INFO
, cfile
,
577 NULL
, NULL
, err_iov
, err_buftype
);
579 struct smb2_hdr
*hdr
= err_iov
[0].iov_base
;
581 if (unlikely(!hdr
|| err_buftype
[0] == CIFS_NO_BUFFER
))
583 if (rc
== -EOPNOTSUPP
&& hdr
->Command
== SMB2_CREATE
&&
584 hdr
->Status
== STATUS_STOPPED_ON_SYMLINK
) {
585 rc
= smb2_parse_symlink_response(cifs_sb
, err_iov
,
586 &data
->symlink_target
);
591 create_options
|= OPEN_REPARSE_POINT
;
593 /* Failed on a symbolic link - query a reparse point info */
594 cifs_get_readable_path(tcon
, full_path
, &cfile
);
595 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
596 FILE_READ_ATTRIBUTES
, FILE_OPEN
,
597 create_options
, ACL_NO_MODE
, data
,
598 SMB2_OP_QUERY_INFO
, cfile
, NULL
, NULL
,
601 } else if (rc
!= -EREMOTE
&& hdr
->Status
== STATUS_OBJECT_NAME_INVALID
) {
602 rc2
= cifs_inval_name_dfs_link_error(xid
, tcon
, cifs_sb
,
611 if (rc
== -EREMOTE
&& IS_ENABLED(CONFIG_CIFS_DFS_UPCALL
) && cifs_sb
&&
612 (cifs_sb
->mnt_cifs_flags
& CIFS_MOUNT_NO_DFS
))
617 free_rsp_buf(err_buftype
[0], err_iov
[0].iov_base
);
618 free_rsp_buf(err_buftype
[1], err_iov
[1].iov_base
);
619 free_rsp_buf(err_buftype
[2], err_iov
[2].iov_base
);
624 int smb311_posix_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
625 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
626 struct cifs_open_info_data
*data
,
627 struct cifs_sid
*owner
,
628 struct cifs_sid
*group
,
629 bool *adjust_tz
, bool *reparse
)
632 __u32 create_options
= 0;
633 struct cifsFileInfo
*cfile
;
634 struct kvec err_iov
[3] = {};
635 int err_buftype
[3] = {};
636 __u8
*sidsbuf
= NULL
;
637 __u8
*sidsbuf_end
= NULL
;
638 size_t sidsbuflen
= 0;
639 size_t owner_len
, group_len
;
645 * BB TODO: Add support for using the cached root handle.
646 * Create SMB2_query_posix_info worker function to do non-compounded query
647 * when we already have an open file handle for this. For now this is fast enough
648 * (always using the compounded version).
651 cifs_get_readable_path(tcon
, full_path
, &cfile
);
652 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
, FILE_READ_ATTRIBUTES
, FILE_OPEN
,
653 create_options
, ACL_NO_MODE
, data
, SMB2_OP_POSIX_QUERY_INFO
, cfile
,
654 &sidsbuf
, &sidsbuflen
, err_iov
, err_buftype
);
655 if (rc
== -EOPNOTSUPP
) {
656 /* BB TODO: When support for special files added to Samba re-verify this path */
657 if (err_iov
[0].iov_base
&& err_buftype
[0] != CIFS_NO_BUFFER
&&
658 ((struct smb2_hdr
*)err_iov
[0].iov_base
)->Command
== SMB2_CREATE
&&
659 ((struct smb2_hdr
*)err_iov
[0].iov_base
)->Status
== STATUS_STOPPED_ON_SYMLINK
) {
660 rc
= smb2_parse_symlink_response(cifs_sb
, err_iov
, &data
->symlink_target
);
665 create_options
|= OPEN_REPARSE_POINT
;
667 /* Failed on a symbolic link - query a reparse point info */
668 cifs_get_readable_path(tcon
, full_path
, &cfile
);
669 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
, FILE_READ_ATTRIBUTES
,
670 FILE_OPEN
, create_options
, ACL_NO_MODE
, data
,
671 SMB2_OP_POSIX_QUERY_INFO
, cfile
,
672 &sidsbuf
, &sidsbuflen
, NULL
, NULL
);
676 sidsbuf_end
= sidsbuf
+ sidsbuflen
;
678 owner_len
= posix_info_sid_size(sidsbuf
, sidsbuf_end
);
679 if (owner_len
== -1) {
683 memcpy(owner
, sidsbuf
, owner_len
);
685 group_len
= posix_info_sid_size(
686 sidsbuf
+ owner_len
, sidsbuf_end
);
687 if (group_len
== -1) {
691 memcpy(group
, sidsbuf
+ owner_len
, group_len
);
696 free_rsp_buf(err_buftype
[0], err_iov
[0].iov_base
);
697 free_rsp_buf(err_buftype
[1], err_iov
[1].iov_base
);
698 free_rsp_buf(err_buftype
[2], err_iov
[2].iov_base
);
703 smb2_mkdir(const unsigned int xid
, struct inode
*parent_inode
, umode_t mode
,
704 struct cifs_tcon
*tcon
, const char *name
,
705 struct cifs_sb_info
*cifs_sb
)
707 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
,
708 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
,
709 CREATE_NOT_FILE
, mode
, NULL
, SMB2_OP_MKDIR
,
710 NULL
, NULL
, NULL
, NULL
, NULL
);
714 smb2_mkdir_setinfo(struct inode
*inode
, const char *name
,
715 struct cifs_sb_info
*cifs_sb
, struct cifs_tcon
*tcon
,
716 const unsigned int xid
)
718 FILE_BASIC_INFO data
;
719 struct cifsInodeInfo
*cifs_i
;
720 struct cifsFileInfo
*cfile
;
724 memset(&data
, 0, sizeof(data
));
725 cifs_i
= CIFS_I(inode
);
726 dosattrs
= cifs_i
->cifsAttrs
| ATTR_READONLY
;
727 data
.Attributes
= cpu_to_le32(dosattrs
);
728 cifs_get_writable_path(tcon
, name
, FIND_WR_ANY
, &cfile
);
729 tmprc
= smb2_compound_op(xid
, tcon
, cifs_sb
, name
,
730 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
,
731 CREATE_NOT_FILE
, ACL_NO_MODE
,
732 &data
, SMB2_OP_SET_INFO
, cfile
, NULL
, NULL
, NULL
, NULL
);
734 cifs_i
->cifsAttrs
= dosattrs
;
738 smb2_rmdir(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
739 struct cifs_sb_info
*cifs_sb
)
741 drop_cached_dir_by_name(xid
, tcon
, name
, cifs_sb
);
742 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
743 CREATE_NOT_FILE
, ACL_NO_MODE
,
744 NULL
, SMB2_OP_RMDIR
, NULL
, NULL
, NULL
, NULL
, NULL
);
748 smb2_unlink(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
749 struct cifs_sb_info
*cifs_sb
)
751 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
752 CREATE_DELETE_ON_CLOSE
| OPEN_REPARSE_POINT
,
753 ACL_NO_MODE
, NULL
, SMB2_OP_DELETE
, NULL
, NULL
, NULL
, NULL
, NULL
);
757 smb2_set_path_attr(const unsigned int xid
, struct cifs_tcon
*tcon
,
758 const char *from_name
, const char *to_name
,
759 struct cifs_sb_info
*cifs_sb
, __u32 access
, int command
,
760 struct cifsFileInfo
*cfile
)
762 __le16
*smb2_to_name
= NULL
;
765 smb2_to_name
= cifs_convert_path_to_utf16(to_name
, cifs_sb
);
766 if (smb2_to_name
== NULL
) {
768 goto smb2_rename_path
;
770 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, from_name
, access
,
771 FILE_OPEN
, 0, ACL_NO_MODE
, smb2_to_name
,
772 command
, cfile
, NULL
, NULL
, NULL
, NULL
);
779 smb2_rename_path(const unsigned int xid
, struct cifs_tcon
*tcon
,
780 const char *from_name
, const char *to_name
,
781 struct cifs_sb_info
*cifs_sb
)
783 struct cifsFileInfo
*cfile
;
785 drop_cached_dir_by_name(xid
, tcon
, from_name
, cifs_sb
);
786 cifs_get_writable_path(tcon
, from_name
, FIND_WR_WITH_DELETE
, &cfile
);
788 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
,
789 cifs_sb
, DELETE
, SMB2_OP_RENAME
, cfile
);
793 smb2_create_hardlink(const unsigned int xid
, struct cifs_tcon
*tcon
,
794 const char *from_name
, const char *to_name
,
795 struct cifs_sb_info
*cifs_sb
)
797 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
, cifs_sb
,
798 FILE_READ_ATTRIBUTES
, SMB2_OP_HARDLINK
,
803 smb2_set_path_size(const unsigned int xid
, struct cifs_tcon
*tcon
,
804 const char *full_path
, __u64 size
,
805 struct cifs_sb_info
*cifs_sb
, bool set_alloc
)
807 __le64 eof
= cpu_to_le64(size
);
808 struct cifsFileInfo
*cfile
;
810 cifs_get_writable_path(tcon
, full_path
, FIND_WR_ANY
, &cfile
);
811 return smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
812 FILE_WRITE_DATA
, FILE_OPEN
, 0, ACL_NO_MODE
,
813 &eof
, SMB2_OP_SET_EOF
, cfile
, NULL
, NULL
, NULL
, NULL
);
817 smb2_set_file_info(struct inode
*inode
, const char *full_path
,
818 FILE_BASIC_INFO
*buf
, const unsigned int xid
)
820 struct cifs_sb_info
*cifs_sb
= CIFS_SB(inode
->i_sb
);
821 struct tcon_link
*tlink
;
822 struct cifs_tcon
*tcon
;
823 struct cifsFileInfo
*cfile
;
826 if ((buf
->CreationTime
== 0) && (buf
->LastAccessTime
== 0) &&
827 (buf
->LastWriteTime
== 0) && (buf
->ChangeTime
== 0) &&
828 (buf
->Attributes
== 0))
829 return 0; /* would be a no op, no sense sending this */
831 tlink
= cifs_sb_tlink(cifs_sb
);
833 return PTR_ERR(tlink
);
834 tcon
= tlink_tcon(tlink
);
836 cifs_get_writable_path(tcon
, full_path
, FIND_WR_ANY
, &cfile
);
837 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
838 FILE_WRITE_ATTRIBUTES
, FILE_OPEN
,
839 0, ACL_NO_MODE
, buf
, SMB2_OP_SET_INFO
, cfile
,
840 NULL
, NULL
, NULL
, NULL
);
841 cifs_put_tlink(tlink
);