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"
28 free_set_inf_compound(struct smb_rqst
*rqst
)
31 SMB2_set_info_free(&rqst
[1]);
33 SMB2_close_free(&rqst
[2]);
38 struct cifs_open_parms oparms
;
39 struct kvec rsp_iov
[3];
40 struct smb_rqst rqst
[3];
41 struct kvec open_iov
[SMB2_CREATE_IOV_SIZE
];
42 struct kvec qi_iov
[1];
43 struct kvec si_iov
[SMB2_SET_INFO_IOV_SIZE
];
44 struct kvec close_iov
[1];
45 struct smb2_file_rename_info rename_info
;
46 struct smb2_file_link_info link_info
;
50 * note: If cfile is passed, the reference to it is dropped here.
51 * So make sure that you do not reuse cfile after return from this func.
54 smb2_compound_op(const unsigned int xid
, struct cifs_tcon
*tcon
,
55 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
56 __u32 desired_access
, __u32 create_disposition
,
57 __u32 create_options
, umode_t mode
, void *ptr
, int command
,
58 struct cifsFileInfo
*cfile
)
60 struct cop_vars
*vars
= NULL
;
62 struct smb_rqst
*rqst
;
64 __le16
*utf16_path
= NULL
;
65 __u8 oplock
= SMB2_OPLOCK_LEVEL_NONE
;
67 struct cifs_ses
*ses
= tcon
->ses
;
68 struct TCP_Server_Info
*server
;
71 struct smb2_query_info_rsp
*qi_rsp
= NULL
;
73 __u8 delete_pending
[8] = {1, 0, 0, 0, 0, 0, 0, 0};
78 vars
= kzalloc(sizeof(*vars
), GFP_ATOMIC
);
81 rqst
= &vars
->rqst
[0];
82 rsp_iov
= &vars
->rsp_iov
[0];
84 server
= cifs_pick_channel(ses
);
86 if (smb3_encryption_required(tcon
))
87 flags
|= CIFS_TRANSFORM_REQ
;
89 resp_buftype
[0] = resp_buftype
[1] = resp_buftype
[2] = CIFS_NO_BUFFER
;
91 /* We already have a handle so we can skip the open */
96 utf16_path
= cifs_convert_path_to_utf16(full_path
, cifs_sb
);
102 vars
->oparms
.tcon
= tcon
;
103 vars
->oparms
.desired_access
= desired_access
;
104 vars
->oparms
.disposition
= create_disposition
;
105 vars
->oparms
.create_options
= cifs_create_options(cifs_sb
, create_options
);
106 vars
->oparms
.fid
= &fid
;
107 vars
->oparms
.reconnect
= false;
108 vars
->oparms
.mode
= mode
;
109 vars
->oparms
.cifs_sb
= cifs_sb
;
111 rqst
[num_rqst
].rq_iov
= &vars
->open_iov
[0];
112 rqst
[num_rqst
].rq_nvec
= SMB2_CREATE_IOV_SIZE
;
113 rc
= SMB2_open_init(tcon
, server
,
114 &rqst
[num_rqst
], &oplock
, &vars
->oparms
,
120 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
127 case SMB2_OP_QUERY_INFO
:
128 rqst
[num_rqst
].rq_iov
= &vars
->qi_iov
[0];
129 rqst
[num_rqst
].rq_nvec
= 1;
132 rc
= SMB2_query_info_init(tcon
, server
,
134 cfile
->fid
.persistent_fid
,
135 cfile
->fid
.volatile_fid
,
136 FILE_ALL_INFORMATION
,
138 sizeof(struct smb2_file_all_info
) +
139 PATH_MAX
* 2, 0, NULL
);
141 rc
= SMB2_query_info_init(tcon
, server
,
145 FILE_ALL_INFORMATION
,
147 sizeof(struct smb2_file_all_info
) +
148 PATH_MAX
* 2, 0, NULL
);
150 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
151 smb2_set_related(&rqst
[num_rqst
]);
158 trace_smb3_query_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
,
161 case SMB2_OP_POSIX_QUERY_INFO
:
162 rqst
[num_rqst
].rq_iov
= &vars
->qi_iov
[0];
163 rqst
[num_rqst
].rq_nvec
= 1;
166 rc
= SMB2_query_info_init(tcon
, server
,
168 cfile
->fid
.persistent_fid
,
169 cfile
->fid
.volatile_fid
,
170 SMB_FIND_FILE_POSIX_INFO
,
172 /* TBD: fix following to allow for longer SIDs */
173 sizeof(struct smb311_posix_qinfo
*) + (PATH_MAX
* 2) +
174 (sizeof(struct cifs_sid
) * 2), 0, NULL
);
176 rc
= SMB2_query_info_init(tcon
, server
,
180 SMB_FIND_FILE_POSIX_INFO
,
182 sizeof(struct smb311_posix_qinfo
*) + (PATH_MAX
* 2) +
183 (sizeof(struct cifs_sid
) * 2), 0, NULL
);
185 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
186 smb2_set_related(&rqst
[num_rqst
]);
193 trace_smb3_posix_query_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
196 trace_smb3_delete_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
200 * Directories are created through parameters in the
203 trace_smb3_mkdir_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
206 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
207 rqst
[num_rqst
].rq_nvec
= 1;
209 size
[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
210 data
[0] = &delete_pending
[0];
212 rc
= SMB2_set_info_init(tcon
, server
,
213 &rqst
[num_rqst
], COMPOUND_FID
,
214 COMPOUND_FID
, current
->tgid
,
215 FILE_DISPOSITION_INFORMATION
,
216 SMB2_O_INFO_FILE
, 0, data
, size
);
219 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
220 smb2_set_related(&rqst
[num_rqst
++]);
221 trace_smb3_rmdir_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
223 case SMB2_OP_SET_EOF
:
224 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
225 rqst
[num_rqst
].rq_nvec
= 1;
227 size
[0] = 8; /* sizeof __le64 */
230 rc
= SMB2_set_info_init(tcon
, server
,
231 &rqst
[num_rqst
], COMPOUND_FID
,
232 COMPOUND_FID
, current
->tgid
,
233 FILE_END_OF_FILE_INFORMATION
,
234 SMB2_O_INFO_FILE
, 0, data
, size
);
237 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
238 smb2_set_related(&rqst
[num_rqst
++]);
239 trace_smb3_set_eof_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
241 case SMB2_OP_SET_INFO
:
242 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
243 rqst
[num_rqst
].rq_nvec
= 1;
246 size
[0] = sizeof(FILE_BASIC_INFO
);
250 rc
= SMB2_set_info_init(tcon
, server
,
252 cfile
->fid
.persistent_fid
,
253 cfile
->fid
.volatile_fid
, current
->tgid
,
254 FILE_BASIC_INFORMATION
,
255 SMB2_O_INFO_FILE
, 0, data
, size
);
257 rc
= SMB2_set_info_init(tcon
, server
,
260 COMPOUND_FID
, current
->tgid
,
261 FILE_BASIC_INFORMATION
,
262 SMB2_O_INFO_FILE
, 0, data
, size
);
264 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
265 smb2_set_related(&rqst
[num_rqst
]);
272 trace_smb3_set_info_compound_enter(xid
, ses
->Suid
, tcon
->tid
,
276 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
277 rqst
[num_rqst
].rq_nvec
= 2;
279 len
= (2 * UniStrnlen((wchar_t *)ptr
, PATH_MAX
));
281 vars
->rename_info
.ReplaceIfExists
= 1;
282 vars
->rename_info
.RootDirectory
= 0;
283 vars
->rename_info
.FileNameLength
= cpu_to_le32(len
);
285 size
[0] = sizeof(struct smb2_file_rename_info
);
286 data
[0] = &vars
->rename_info
;
288 size
[1] = len
+ 2 /* null */;
289 data
[1] = (__le16
*)ptr
;
292 rc
= SMB2_set_info_init(tcon
, server
,
294 cfile
->fid
.persistent_fid
,
295 cfile
->fid
.volatile_fid
,
296 current
->tgid
, FILE_RENAME_INFORMATION
,
297 SMB2_O_INFO_FILE
, 0, data
, size
);
299 rc
= SMB2_set_info_init(tcon
, server
,
301 COMPOUND_FID
, COMPOUND_FID
,
302 current
->tgid
, FILE_RENAME_INFORMATION
,
303 SMB2_O_INFO_FILE
, 0, data
, size
);
305 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
306 smb2_set_related(&rqst
[num_rqst
]);
312 trace_smb3_rename_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
314 case SMB2_OP_HARDLINK
:
315 rqst
[num_rqst
].rq_iov
= &vars
->si_iov
[0];
316 rqst
[num_rqst
].rq_nvec
= 2;
318 len
= (2 * UniStrnlen((wchar_t *)ptr
, PATH_MAX
));
320 vars
->link_info
.ReplaceIfExists
= 0;
321 vars
->link_info
.RootDirectory
= 0;
322 vars
->link_info
.FileNameLength
= cpu_to_le32(len
);
324 size
[0] = sizeof(struct smb2_file_link_info
);
325 data
[0] = &vars
->link_info
;
327 size
[1] = len
+ 2 /* null */;
328 data
[1] = (__le16
*)ptr
;
330 rc
= SMB2_set_info_init(tcon
, server
,
331 &rqst
[num_rqst
], COMPOUND_FID
,
332 COMPOUND_FID
, current
->tgid
,
333 FILE_LINK_INFORMATION
,
334 SMB2_O_INFO_FILE
, 0, data
, size
);
337 smb2_set_next_command(tcon
, &rqst
[num_rqst
]);
338 smb2_set_related(&rqst
[num_rqst
++]);
339 trace_smb3_hardlink_enter(xid
, ses
->Suid
, tcon
->tid
, full_path
);
342 cifs_dbg(VFS
, "Invalid command\n");
348 /* We already have a handle so we can skip the close */
352 flags
|= CIFS_CP_CREATE_CLOSE_OP
;
353 rqst
[num_rqst
].rq_iov
= &vars
->close_iov
[0];
354 rqst
[num_rqst
].rq_nvec
= 1;
355 rc
= SMB2_close_init(tcon
, server
,
356 &rqst
[num_rqst
], COMPOUND_FID
,
357 COMPOUND_FID
, false);
358 smb2_set_related(&rqst
[num_rqst
]);
365 rc
= compound_send_recv(xid
, ses
, server
,
367 &rqst
[1], &resp_buftype
[1],
370 rc
= compound_send_recv(xid
, ses
, server
,
377 cifsFileInfo_put(cfile
);
379 SMB2_open_free(&rqst
[0]);
380 if (rc
== -EREMCHG
) {
381 pr_warn_once("server share %s deleted\n", tcon
->treeName
);
382 tcon
->need_reconnect
= true;
386 case SMB2_OP_QUERY_INFO
:
388 qi_rsp
= (struct smb2_query_info_rsp
*)
390 rc
= smb2_validate_and_copy_iov(
391 le16_to_cpu(qi_rsp
->OutputBufferOffset
),
392 le32_to_cpu(qi_rsp
->OutputBufferLength
),
393 &rsp_iov
[1], sizeof(struct smb2_file_all_info
),
397 SMB2_query_info_free(&rqst
[1]);
399 SMB2_close_free(&rqst
[2]);
401 trace_smb3_query_info_compound_err(xid
, ses
->Suid
,
404 trace_smb3_query_info_compound_done(xid
, ses
->Suid
,
407 case SMB2_OP_POSIX_QUERY_INFO
:
409 qi_rsp
= (struct smb2_query_info_rsp
*)
411 rc
= smb2_validate_and_copy_iov(
412 le16_to_cpu(qi_rsp
->OutputBufferOffset
),
413 le32_to_cpu(qi_rsp
->OutputBufferLength
),
414 &rsp_iov
[1], sizeof(struct smb311_posix_qinfo
) /* add SIDs */, ptr
);
417 SMB2_query_info_free(&rqst
[1]);
419 SMB2_close_free(&rqst
[2]);
421 trace_smb3_posix_query_info_compound_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
423 trace_smb3_posix_query_info_compound_done(xid
, ses
->Suid
, tcon
->tid
);
427 trace_smb3_delete_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
429 trace_smb3_delete_done(xid
, ses
->Suid
, tcon
->tid
);
431 SMB2_close_free(&rqst
[1]);
435 trace_smb3_mkdir_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
437 trace_smb3_mkdir_done(xid
, ses
->Suid
, tcon
->tid
);
439 SMB2_close_free(&rqst
[1]);
441 case SMB2_OP_HARDLINK
:
443 trace_smb3_hardlink_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
445 trace_smb3_hardlink_done(xid
, ses
->Suid
, tcon
->tid
);
446 free_set_inf_compound(rqst
);
450 trace_smb3_rename_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
452 trace_smb3_rename_done(xid
, ses
->Suid
, tcon
->tid
);
453 free_set_inf_compound(rqst
);
457 trace_smb3_rmdir_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
459 trace_smb3_rmdir_done(xid
, ses
->Suid
, tcon
->tid
);
460 free_set_inf_compound(rqst
);
462 case SMB2_OP_SET_EOF
:
464 trace_smb3_set_eof_err(xid
, ses
->Suid
, tcon
->tid
, rc
);
466 trace_smb3_set_eof_done(xid
, ses
->Suid
, tcon
->tid
);
467 free_set_inf_compound(rqst
);
469 case SMB2_OP_SET_INFO
:
471 trace_smb3_set_info_compound_err(xid
, ses
->Suid
,
474 trace_smb3_set_info_compound_done(xid
, ses
->Suid
,
476 free_set_inf_compound(rqst
);
479 free_rsp_buf(resp_buftype
[0], rsp_iov
[0].iov_base
);
480 free_rsp_buf(resp_buftype
[1], rsp_iov
[1].iov_base
);
481 free_rsp_buf(resp_buftype
[2], rsp_iov
[2].iov_base
);
487 move_smb2_info_to_cifs(FILE_ALL_INFO
*dst
, struct smb2_file_all_info
*src
)
489 memcpy(dst
, src
, (size_t)(&src
->CurrentByteOffset
) - (size_t)src
);
490 dst
->CurrentByteOffset
= src
->CurrentByteOffset
;
491 dst
->Mode
= src
->Mode
;
492 dst
->AlignmentRequirement
= src
->AlignmentRequirement
;
493 dst
->IndexNumber1
= 0; /* we don't use it */
497 smb2_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
498 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
499 FILE_ALL_INFO
*data
, bool *adjust_tz
, bool *reparse
)
502 struct smb2_file_all_info
*smb2_data
;
503 __u32 create_options
= 0;
504 struct cifsFileInfo
*cfile
;
505 struct cached_fid
*cfid
= NULL
;
510 smb2_data
= kzalloc(sizeof(struct smb2_file_all_info
) + PATH_MAX
* 2,
512 if (smb2_data
== NULL
)
515 if (strcmp(full_path
, ""))
518 rc
= open_cached_dir(xid
, tcon
, full_path
, cifs_sb
, &cfid
);
519 /* If it is a root and its handle is cached then use it */
521 if (tcon
->crfid
.file_all_info_is_valid
) {
522 move_smb2_info_to_cifs(data
,
523 &tcon
->crfid
.file_all_info
);
525 rc
= SMB2_query_info(xid
, tcon
,
526 cfid
->fid
->persistent_fid
,
527 cfid
->fid
->volatile_fid
, smb2_data
);
529 move_smb2_info_to_cifs(data
, smb2_data
);
531 close_cached_dir(cfid
);
535 cifs_get_readable_path(tcon
, full_path
, &cfile
);
536 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
537 FILE_READ_ATTRIBUTES
, FILE_OPEN
, create_options
,
538 ACL_NO_MODE
, smb2_data
, SMB2_OP_QUERY_INFO
, cfile
);
539 if (rc
== -EOPNOTSUPP
) {
541 create_options
|= OPEN_REPARSE_POINT
;
543 /* Failed on a symbolic link - query a reparse point info */
544 cifs_get_readable_path(tcon
, full_path
, &cfile
);
545 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
546 FILE_READ_ATTRIBUTES
, FILE_OPEN
,
547 create_options
, ACL_NO_MODE
,
548 smb2_data
, SMB2_OP_QUERY_INFO
, cfile
);
553 move_smb2_info_to_cifs(data
, smb2_data
);
561 smb311_posix_query_path_info(const unsigned int xid
, struct cifs_tcon
*tcon
,
562 struct cifs_sb_info
*cifs_sb
, const char *full_path
,
563 struct smb311_posix_qinfo
*data
, bool *adjust_tz
, bool *reparse
)
566 __u32 create_options
= 0;
567 struct cifsFileInfo
*cfile
;
568 struct smb311_posix_qinfo
*smb2_data
;
573 /* BB TODO: Make struct larger when add support for parsing owner SIDs */
574 smb2_data
= kzalloc(sizeof(struct smb311_posix_qinfo
),
576 if (smb2_data
== NULL
)
580 * BB TODO: Add support for using the cached root handle.
581 * Create SMB2_query_posix_info worker function to do non-compounded query
582 * when we already have an open file handle for this. For now this is fast enough
583 * (always using the compounded version).
586 cifs_get_readable_path(tcon
, full_path
, &cfile
);
587 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
588 FILE_READ_ATTRIBUTES
, FILE_OPEN
, create_options
,
589 ACL_NO_MODE
, smb2_data
, SMB2_OP_POSIX_QUERY_INFO
, cfile
);
590 if (rc
== -EOPNOTSUPP
) {
591 /* BB TODO: When support for special files added to Samba re-verify this path */
593 create_options
|= OPEN_REPARSE_POINT
;
595 /* Failed on a symbolic link - query a reparse point info */
596 cifs_get_readable_path(tcon
, full_path
, &cfile
);
597 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
598 FILE_READ_ATTRIBUTES
, FILE_OPEN
,
599 create_options
, ACL_NO_MODE
,
600 smb2_data
, SMB2_OP_POSIX_QUERY_INFO
, cfile
);
605 /* TODO: will need to allow for the 2 SIDs when add support for getting owner UID/GID */
606 memcpy(data
, smb2_data
, sizeof(struct smb311_posix_qinfo
));
614 smb2_mkdir(const unsigned int xid
, struct inode
*parent_inode
, umode_t mode
,
615 struct cifs_tcon
*tcon
, const char *name
,
616 struct cifs_sb_info
*cifs_sb
)
618 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
,
619 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
,
620 CREATE_NOT_FILE
, mode
, NULL
, SMB2_OP_MKDIR
,
625 smb2_mkdir_setinfo(struct inode
*inode
, const char *name
,
626 struct cifs_sb_info
*cifs_sb
, struct cifs_tcon
*tcon
,
627 const unsigned int xid
)
629 FILE_BASIC_INFO data
;
630 struct cifsInodeInfo
*cifs_i
;
631 struct cifsFileInfo
*cfile
;
635 memset(&data
, 0, sizeof(data
));
636 cifs_i
= CIFS_I(inode
);
637 dosattrs
= cifs_i
->cifsAttrs
| ATTR_READONLY
;
638 data
.Attributes
= cpu_to_le32(dosattrs
);
639 cifs_get_writable_path(tcon
, name
, FIND_WR_ANY
, &cfile
);
640 tmprc
= smb2_compound_op(xid
, tcon
, cifs_sb
, name
,
641 FILE_WRITE_ATTRIBUTES
, FILE_CREATE
,
642 CREATE_NOT_FILE
, ACL_NO_MODE
,
643 &data
, SMB2_OP_SET_INFO
, cfile
);
645 cifs_i
->cifsAttrs
= dosattrs
;
649 smb2_rmdir(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
650 struct cifs_sb_info
*cifs_sb
)
652 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
653 CREATE_NOT_FILE
, ACL_NO_MODE
,
654 NULL
, SMB2_OP_RMDIR
, NULL
);
658 smb2_unlink(const unsigned int xid
, struct cifs_tcon
*tcon
, const char *name
,
659 struct cifs_sb_info
*cifs_sb
)
661 return smb2_compound_op(xid
, tcon
, cifs_sb
, name
, DELETE
, FILE_OPEN
,
662 CREATE_DELETE_ON_CLOSE
| OPEN_REPARSE_POINT
,
663 ACL_NO_MODE
, NULL
, SMB2_OP_DELETE
, NULL
);
667 smb2_set_path_attr(const unsigned int xid
, struct cifs_tcon
*tcon
,
668 const char *from_name
, const char *to_name
,
669 struct cifs_sb_info
*cifs_sb
, __u32 access
, int command
,
670 struct cifsFileInfo
*cfile
)
672 __le16
*smb2_to_name
= NULL
;
675 smb2_to_name
= cifs_convert_path_to_utf16(to_name
, cifs_sb
);
676 if (smb2_to_name
== NULL
) {
678 goto smb2_rename_path
;
680 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, from_name
, access
,
681 FILE_OPEN
, 0, ACL_NO_MODE
, smb2_to_name
,
689 smb2_rename_path(const unsigned int xid
, struct cifs_tcon
*tcon
,
690 const char *from_name
, const char *to_name
,
691 struct cifs_sb_info
*cifs_sb
)
693 struct cifsFileInfo
*cfile
;
695 cifs_get_writable_path(tcon
, from_name
, FIND_WR_WITH_DELETE
, &cfile
);
697 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
,
698 cifs_sb
, DELETE
, SMB2_OP_RENAME
, cfile
);
702 smb2_create_hardlink(const unsigned int xid
, struct cifs_tcon
*tcon
,
703 const char *from_name
, const char *to_name
,
704 struct cifs_sb_info
*cifs_sb
)
706 return smb2_set_path_attr(xid
, tcon
, from_name
, to_name
, cifs_sb
,
707 FILE_READ_ATTRIBUTES
, SMB2_OP_HARDLINK
,
712 smb2_set_path_size(const unsigned int xid
, struct cifs_tcon
*tcon
,
713 const char *full_path
, __u64 size
,
714 struct cifs_sb_info
*cifs_sb
, bool set_alloc
)
716 __le64 eof
= cpu_to_le64(size
);
717 struct cifsFileInfo
*cfile
;
719 cifs_get_writable_path(tcon
, full_path
, FIND_WR_ANY
, &cfile
);
720 return smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
721 FILE_WRITE_DATA
, FILE_OPEN
, 0, ACL_NO_MODE
,
722 &eof
, SMB2_OP_SET_EOF
, cfile
);
726 smb2_set_file_info(struct inode
*inode
, const char *full_path
,
727 FILE_BASIC_INFO
*buf
, const unsigned int xid
)
729 struct cifs_sb_info
*cifs_sb
= CIFS_SB(inode
->i_sb
);
730 struct tcon_link
*tlink
;
731 struct cifs_tcon
*tcon
;
732 struct cifsFileInfo
*cfile
;
735 if ((buf
->CreationTime
== 0) && (buf
->LastAccessTime
== 0) &&
736 (buf
->LastWriteTime
== 0) && (buf
->ChangeTime
== 0) &&
737 (buf
->Attributes
== 0))
738 return 0; /* would be a no op, no sense sending this */
740 tlink
= cifs_sb_tlink(cifs_sb
);
742 return PTR_ERR(tlink
);
743 tcon
= tlink_tcon(tlink
);
745 cifs_get_writable_path(tcon
, full_path
, FIND_WR_ANY
, &cfile
);
746 rc
= smb2_compound_op(xid
, tcon
, cifs_sb
, full_path
,
747 FILE_WRITE_ATTRIBUTES
, FILE_OPEN
,
748 0, ACL_NO_MODE
, buf
, SMB2_OP_SET_INFO
, cfile
);
749 cifs_put_tlink(tlink
);