1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* AFS File Server client stubs
4 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
8 #include <linux/init.h>
9 #include <linux/slab.h>
10 #include <linux/sched.h>
11 #include <linux/circ_buf.h>
12 #include <linux/iversion.h>
13 #include <linux/netfs.h>
19 * decode an AFSFid block
21 static void xdr_decode_AFSFid(const __be32
**_bp
, struct afs_fid
*fid
)
23 const __be32
*bp
= *_bp
;
25 fid
->vid
= ntohl(*bp
++);
26 fid
->vnode
= ntohl(*bp
++);
27 fid
->unique
= ntohl(*bp
++);
32 * Dump a bad file status record.
34 static void xdr_dump_bad(const __be32
*bp
)
39 pr_notice("AFS XDR: Bad status record\n");
40 for (i
= 0; i
< 5 * 4 * 4; i
+= 16) {
43 pr_notice("%03x: %08x %08x %08x %08x\n",
44 i
, ntohl(x
[0]), ntohl(x
[1]), ntohl(x
[2]), ntohl(x
[3]));
48 pr_notice("0x50: %08x\n", ntohl(x
[0]));
52 * decode an AFSFetchStatus block
54 static void xdr_decode_AFSFetchStatus(const __be32
**_bp
,
55 struct afs_call
*call
,
56 struct afs_status_cb
*scb
)
58 const struct afs_xdr_AFSFetchStatus
*xdr
= (const void *)*_bp
;
59 struct afs_file_status
*status
= &scb
->status
;
60 bool inline_error
= (call
->operation_ID
== afs_FS_InlineBulkStatus
);
61 u64 data_version
, size
;
64 abort_code
= ntohl(xdr
->abort_code
);
66 if (xdr
->if_version
!= htonl(AFS_FSTATUS_VERSION
)) {
67 if (xdr
->if_version
== htonl(0) &&
70 /* The OpenAFS fileserver has a bug in FS.InlineBulkStatus
71 * whereby it doesn't set the interface version in the error
74 status
->abort_code
= abort_code
;
75 scb
->have_error
= true;
79 pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr
->if_version
));
83 if (abort_code
!= 0 && inline_error
) {
84 status
->abort_code
= abort_code
;
85 scb
->have_error
= true;
89 type
= ntohl(xdr
->type
);
93 case AFS_FTYPE_SYMLINK
:
100 status
->nlink
= ntohl(xdr
->nlink
);
101 status
->author
= ntohl(xdr
->author
);
102 status
->owner
= ntohl(xdr
->owner
);
103 status
->caller_access
= ntohl(xdr
->caller_access
); /* Ticket dependent */
104 status
->anon_access
= ntohl(xdr
->anon_access
);
105 status
->mode
= ntohl(xdr
->mode
) & S_IALLUGO
;
106 status
->group
= ntohl(xdr
->group
);
107 status
->lock_count
= ntohl(xdr
->lock_count
);
109 status
->mtime_client
.tv_sec
= ntohl(xdr
->mtime_client
);
110 status
->mtime_client
.tv_nsec
= 0;
111 status
->mtime_server
.tv_sec
= ntohl(xdr
->mtime_server
);
112 status
->mtime_server
.tv_nsec
= 0;
114 size
= (u64
)ntohl(xdr
->size_lo
);
115 size
|= (u64
)ntohl(xdr
->size_hi
) << 32;
118 data_version
= (u64
)ntohl(xdr
->data_version_lo
);
119 data_version
|= (u64
)ntohl(xdr
->data_version_hi
) << 32;
120 status
->data_version
= data_version
;
121 scb
->have_status
= true;
123 *_bp
= (const void *)*_bp
+ sizeof(*xdr
);
128 afs_protocol_error(call
, afs_eproto_bad_status
);
132 static time64_t
xdr_decode_expiry(struct afs_call
*call
, u32 expiry
)
134 return ktime_divns(call
->issue_time
, NSEC_PER_SEC
) + expiry
;
137 static void xdr_decode_AFSCallBack(const __be32
**_bp
,
138 struct afs_call
*call
,
139 struct afs_status_cb
*scb
)
141 struct afs_callback
*cb
= &scb
->callback
;
142 const __be32
*bp
= *_bp
;
145 cb
->expires_at
= xdr_decode_expiry(call
, ntohl(*bp
++));
152 * decode an AFSVolSync block
154 static void xdr_decode_AFSVolSync(const __be32
**_bp
,
155 struct afs_volsync
*volsync
)
157 const __be32
*bp
= *_bp
;
160 creation
= ntohl(*bp
++);
169 volsync
->creation
= creation
;
173 * encode the requested attributes into an AFSStoreStatus block
175 static void xdr_encode_AFS_StoreStatus(__be32
**_bp
, struct iattr
*attr
)
178 u32 mask
= 0, mtime
= 0, owner
= 0, group
= 0, mode
= 0;
181 if (attr
->ia_valid
& ATTR_MTIME
) {
182 mask
|= AFS_SET_MTIME
;
183 mtime
= attr
->ia_mtime
.tv_sec
;
186 if (attr
->ia_valid
& ATTR_UID
) {
187 mask
|= AFS_SET_OWNER
;
188 owner
= from_kuid(&init_user_ns
, attr
->ia_uid
);
191 if (attr
->ia_valid
& ATTR_GID
) {
192 mask
|= AFS_SET_GROUP
;
193 group
= from_kgid(&init_user_ns
, attr
->ia_gid
);
196 if (attr
->ia_valid
& ATTR_MODE
) {
197 mask
|= AFS_SET_MODE
;
198 mode
= attr
->ia_mode
& S_IALLUGO
;
202 *bp
++ = htonl(mtime
);
203 *bp
++ = htonl(owner
);
204 *bp
++ = htonl(group
);
206 *bp
++ = 0; /* segment size */
211 * decode an AFSFetchVolumeStatus block
213 static void xdr_decode_AFSFetchVolumeStatus(const __be32
**_bp
,
214 struct afs_volume_status
*vs
)
216 const __be32
*bp
= *_bp
;
218 vs
->vid
= ntohl(*bp
++);
219 vs
->parent_id
= ntohl(*bp
++);
220 vs
->online
= ntohl(*bp
++);
221 vs
->in_service
= ntohl(*bp
++);
222 vs
->blessed
= ntohl(*bp
++);
223 vs
->needs_salvage
= ntohl(*bp
++);
224 vs
->type
= ntohl(*bp
++);
225 vs
->min_quota
= ntohl(*bp
++);
226 vs
->max_quota
= ntohl(*bp
++);
227 vs
->blocks_in_use
= ntohl(*bp
++);
228 vs
->part_blocks_avail
= ntohl(*bp
++);
229 vs
->part_max_blocks
= ntohl(*bp
++);
230 vs
->vol_copy_date
= 0;
231 vs
->vol_backup_date
= 0;
236 * deliver reply data to an FS.FetchStatus
238 static int afs_deliver_fs_fetch_status(struct afs_call
*call
)
240 struct afs_operation
*op
= call
->op
;
241 struct afs_vnode_param
*vp
= &op
->file
[op
->fetch_status
.which
];
245 ret
= afs_transfer_reply(call
);
249 /* unmarshall the reply once we've received all of it */
251 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
252 xdr_decode_AFSCallBack(&bp
, call
, &vp
->scb
);
253 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
255 _leave(" = 0 [done]");
260 * FS.FetchStatus operation type
262 static const struct afs_call_type afs_RXFSFetchStatus
= {
263 .name
= "FS.FetchStatus",
264 .op
= afs_FS_FetchStatus
,
265 .deliver
= afs_deliver_fs_fetch_status
,
266 .destructor
= afs_flat_call_destructor
,
270 * fetch the status information for a file
272 void afs_fs_fetch_status(struct afs_operation
*op
)
274 struct afs_vnode_param
*vp
= &op
->file
[op
->fetch_status
.which
];
275 struct afs_call
*call
;
278 _enter(",%x,{%llx:%llu},,",
279 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
281 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSFetchStatus
,
282 16, (21 + 3 + 6) * 4);
284 return afs_op_nomem(op
);
286 /* marshall the parameters */
288 bp
[0] = htonl(FSFETCHSTATUS
);
289 bp
[1] = htonl(vp
->fid
.vid
);
290 bp
[2] = htonl(vp
->fid
.vnode
);
291 bp
[3] = htonl(vp
->fid
.unique
);
293 trace_afs_make_fs_call(call
, &vp
->fid
);
294 afs_make_op_call(op
, call
, GFP_NOFS
);
298 * deliver reply data to an FS.FetchData
300 static int afs_deliver_fs_fetch_data(struct afs_call
*call
)
302 struct afs_operation
*op
= call
->op
;
303 struct afs_vnode_param
*vp
= &op
->file
[0];
304 struct afs_read
*req
= op
->fetch
.req
;
308 _enter("{%u,%zu,%zu/%llu}",
309 call
->unmarshall
, call
->iov_len
, iov_iter_count(call
->iter
),
312 switch (call
->unmarshall
) {
316 if (call
->operation_ID
== FSFETCHDATA64
) {
317 afs_extract_to_tmp64(call
);
319 call
->tmp_u
= htonl(0);
320 afs_extract_to_tmp(call
);
324 /* Extract the returned data length into
325 * ->actual_len. This may indicate more or less data than was
326 * requested will be returned.
329 _debug("extract data length");
330 ret
= afs_extract_data(call
, true);
334 req
->actual_len
= be64_to_cpu(call
->tmp64
);
335 _debug("DATA length: %llu", req
->actual_len
);
337 if (req
->actual_len
== 0)
340 call
->iter
= req
->iter
;
341 call
->iov_len
= min(req
->actual_len
, req
->len
);
345 /* extract the returned data */
347 _debug("extract data %zu/%llu",
348 iov_iter_count(call
->iter
), req
->actual_len
);
350 ret
= afs_extract_data(call
, true);
354 call
->iter
= &call
->def_iter
;
355 if (req
->actual_len
<= req
->len
)
358 /* Discard any excess data the server gave us */
359 afs_extract_discard(call
, req
->actual_len
- req
->len
);
360 call
->unmarshall
= 3;
364 _debug("extract discard %zu/%llu",
365 iov_iter_count(call
->iter
), req
->actual_len
- req
->len
);
367 ret
= afs_extract_data(call
, true);
372 call
->unmarshall
= 4;
373 afs_extract_to_buf(call
, (21 + 3 + 6) * 4);
376 /* extract the metadata */
378 ret
= afs_extract_data(call
, false);
383 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
384 xdr_decode_AFSCallBack(&bp
, call
, &vp
->scb
);
385 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
387 req
->data_version
= vp
->scb
.status
.data_version
;
388 req
->file_size
= vp
->scb
.status
.size
;
397 _leave(" = 0 [done]");
402 * FS.FetchData operation type
404 static const struct afs_call_type afs_RXFSFetchData
= {
405 .name
= "FS.FetchData",
406 .op
= afs_FS_FetchData
,
407 .deliver
= afs_deliver_fs_fetch_data
,
408 .destructor
= afs_flat_call_destructor
,
411 static const struct afs_call_type afs_RXFSFetchData64
= {
412 .name
= "FS.FetchData64",
413 .op
= afs_FS_FetchData64
,
414 .deliver
= afs_deliver_fs_fetch_data
,
415 .destructor
= afs_flat_call_destructor
,
419 * fetch data from a very large file
421 static void afs_fs_fetch_data64(struct afs_operation
*op
)
423 struct afs_vnode_param
*vp
= &op
->file
[0];
424 struct afs_read
*req
= op
->fetch
.req
;
425 struct afs_call
*call
;
430 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSFetchData64
, 32, (21 + 3 + 6) * 4);
432 return afs_op_nomem(op
);
434 /* marshall the parameters */
436 bp
[0] = htonl(FSFETCHDATA64
);
437 bp
[1] = htonl(vp
->fid
.vid
);
438 bp
[2] = htonl(vp
->fid
.vnode
);
439 bp
[3] = htonl(vp
->fid
.unique
);
440 bp
[4] = htonl(upper_32_bits(req
->pos
));
441 bp
[5] = htonl(lower_32_bits(req
->pos
));
443 bp
[7] = htonl(lower_32_bits(req
->len
));
445 trace_afs_make_fs_call(call
, &vp
->fid
);
446 afs_make_op_call(op
, call
, GFP_NOFS
);
450 * fetch data from a file
452 void afs_fs_fetch_data(struct afs_operation
*op
)
454 struct afs_vnode_param
*vp
= &op
->file
[0];
455 struct afs_call
*call
;
456 struct afs_read
*req
= op
->fetch
.req
;
459 if (test_bit(AFS_SERVER_FL_HAS_FS64
, &op
->server
->flags
))
460 return afs_fs_fetch_data64(op
);
464 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSFetchData
, 24, (21 + 3 + 6) * 4);
466 return afs_op_nomem(op
);
468 req
->call_debug_id
= call
->debug_id
;
470 /* marshall the parameters */
472 bp
[0] = htonl(FSFETCHDATA
);
473 bp
[1] = htonl(vp
->fid
.vid
);
474 bp
[2] = htonl(vp
->fid
.vnode
);
475 bp
[3] = htonl(vp
->fid
.unique
);
476 bp
[4] = htonl(lower_32_bits(req
->pos
));
477 bp
[5] = htonl(lower_32_bits(req
->len
));
479 trace_afs_make_fs_call(call
, &vp
->fid
);
480 afs_make_op_call(op
, call
, GFP_NOFS
);
484 * deliver reply data to an FS.CreateFile or an FS.MakeDir
486 static int afs_deliver_fs_create_vnode(struct afs_call
*call
)
488 struct afs_operation
*op
= call
->op
;
489 struct afs_vnode_param
*dvp
= &op
->file
[0];
490 struct afs_vnode_param
*vp
= &op
->file
[1];
494 ret
= afs_transfer_reply(call
);
498 /* unmarshall the reply once we've received all of it */
500 xdr_decode_AFSFid(&bp
, &op
->file
[1].fid
);
501 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
502 xdr_decode_AFSFetchStatus(&bp
, call
, &dvp
->scb
);
503 xdr_decode_AFSCallBack(&bp
, call
, &vp
->scb
);
504 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
506 _leave(" = 0 [done]");
511 * FS.CreateFile and FS.MakeDir operation type
513 static const struct afs_call_type afs_RXFSCreateFile
= {
514 .name
= "FS.CreateFile",
515 .op
= afs_FS_CreateFile
,
516 .deliver
= afs_deliver_fs_create_vnode
,
517 .destructor
= afs_flat_call_destructor
,
523 void afs_fs_create_file(struct afs_operation
*op
)
525 const struct qstr
*name
= &op
->dentry
->d_name
;
526 struct afs_vnode_param
*dvp
= &op
->file
[0];
527 struct afs_call
*call
;
528 size_t namesz
, reqsz
, padsz
;
534 padsz
= (4 - (namesz
& 3)) & 3;
535 reqsz
= (5 * 4) + namesz
+ padsz
+ (6 * 4);
537 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSCreateFile
,
538 reqsz
, (3 + 21 + 21 + 3 + 6) * 4);
540 return afs_op_nomem(op
);
542 /* marshall the parameters */
544 *bp
++ = htonl(FSCREATEFILE
);
545 *bp
++ = htonl(dvp
->fid
.vid
);
546 *bp
++ = htonl(dvp
->fid
.vnode
);
547 *bp
++ = htonl(dvp
->fid
.unique
);
548 *bp
++ = htonl(namesz
);
549 memcpy(bp
, name
->name
, namesz
);
550 bp
= (void *) bp
+ namesz
;
552 memset(bp
, 0, padsz
);
553 bp
= (void *) bp
+ padsz
;
555 *bp
++ = htonl(AFS_SET_MODE
| AFS_SET_MTIME
);
556 *bp
++ = htonl(op
->mtime
.tv_sec
); /* mtime */
557 *bp
++ = 0; /* owner */
558 *bp
++ = 0; /* group */
559 *bp
++ = htonl(op
->create
.mode
& S_IALLUGO
); /* unix mode */
560 *bp
++ = 0; /* segment size */
562 trace_afs_make_fs_call1(call
, &dvp
->fid
, name
);
563 afs_make_op_call(op
, call
, GFP_NOFS
);
566 static const struct afs_call_type afs_RXFSMakeDir
= {
567 .name
= "FS.MakeDir",
568 .op
= afs_FS_MakeDir
,
569 .deliver
= afs_deliver_fs_create_vnode
,
570 .destructor
= afs_flat_call_destructor
,
574 * Create a new directory
576 void afs_fs_make_dir(struct afs_operation
*op
)
578 const struct qstr
*name
= &op
->dentry
->d_name
;
579 struct afs_vnode_param
*dvp
= &op
->file
[0];
580 struct afs_call
*call
;
581 size_t namesz
, reqsz
, padsz
;
587 padsz
= (4 - (namesz
& 3)) & 3;
588 reqsz
= (5 * 4) + namesz
+ padsz
+ (6 * 4);
590 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSMakeDir
,
591 reqsz
, (3 + 21 + 21 + 3 + 6) * 4);
593 return afs_op_nomem(op
);
595 /* marshall the parameters */
597 *bp
++ = htonl(FSMAKEDIR
);
598 *bp
++ = htonl(dvp
->fid
.vid
);
599 *bp
++ = htonl(dvp
->fid
.vnode
);
600 *bp
++ = htonl(dvp
->fid
.unique
);
601 *bp
++ = htonl(namesz
);
602 memcpy(bp
, name
->name
, namesz
);
603 bp
= (void *) bp
+ namesz
;
605 memset(bp
, 0, padsz
);
606 bp
= (void *) bp
+ padsz
;
608 *bp
++ = htonl(AFS_SET_MODE
| AFS_SET_MTIME
);
609 *bp
++ = htonl(op
->mtime
.tv_sec
); /* mtime */
610 *bp
++ = 0; /* owner */
611 *bp
++ = 0; /* group */
612 *bp
++ = htonl(op
->create
.mode
& S_IALLUGO
); /* unix mode */
613 *bp
++ = 0; /* segment size */
615 trace_afs_make_fs_call1(call
, &dvp
->fid
, name
);
616 afs_make_op_call(op
, call
, GFP_NOFS
);
620 * Deliver reply data to any operation that returns status and volume sync.
622 static int afs_deliver_fs_file_status_and_vol(struct afs_call
*call
)
624 struct afs_operation
*op
= call
->op
;
625 struct afs_vnode_param
*vp
= &op
->file
[0];
629 ret
= afs_transfer_reply(call
);
633 /* unmarshall the reply once we've received all of it */
635 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
636 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
638 _leave(" = 0 [done]");
643 * FS.RemoveFile operation type
645 static const struct afs_call_type afs_RXFSRemoveFile
= {
646 .name
= "FS.RemoveFile",
647 .op
= afs_FS_RemoveFile
,
648 .deliver
= afs_deliver_fs_file_status_and_vol
,
649 .destructor
= afs_flat_call_destructor
,
655 void afs_fs_remove_file(struct afs_operation
*op
)
657 const struct qstr
*name
= &op
->dentry
->d_name
;
658 struct afs_vnode_param
*dvp
= &op
->file
[0];
659 struct afs_call
*call
;
660 size_t namesz
, reqsz
, padsz
;
666 padsz
= (4 - (namesz
& 3)) & 3;
667 reqsz
= (5 * 4) + namesz
+ padsz
;
669 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSRemoveFile
,
670 reqsz
, (21 + 6) * 4);
672 return afs_op_nomem(op
);
674 /* marshall the parameters */
676 *bp
++ = htonl(FSREMOVEFILE
);
677 *bp
++ = htonl(dvp
->fid
.vid
);
678 *bp
++ = htonl(dvp
->fid
.vnode
);
679 *bp
++ = htonl(dvp
->fid
.unique
);
680 *bp
++ = htonl(namesz
);
681 memcpy(bp
, name
->name
, namesz
);
682 bp
= (void *) bp
+ namesz
;
684 memset(bp
, 0, padsz
);
685 bp
= (void *) bp
+ padsz
;
688 trace_afs_make_fs_call1(call
, &dvp
->fid
, name
);
689 afs_make_op_call(op
, call
, GFP_NOFS
);
692 static const struct afs_call_type afs_RXFSRemoveDir
= {
693 .name
= "FS.RemoveDir",
694 .op
= afs_FS_RemoveDir
,
695 .deliver
= afs_deliver_fs_file_status_and_vol
,
696 .destructor
= afs_flat_call_destructor
,
700 * Remove a directory.
702 void afs_fs_remove_dir(struct afs_operation
*op
)
704 const struct qstr
*name
= &op
->dentry
->d_name
;
705 struct afs_vnode_param
*dvp
= &op
->file
[0];
706 struct afs_call
*call
;
707 size_t namesz
, reqsz
, padsz
;
713 padsz
= (4 - (namesz
& 3)) & 3;
714 reqsz
= (5 * 4) + namesz
+ padsz
;
716 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSRemoveDir
,
717 reqsz
, (21 + 6) * 4);
719 return afs_op_nomem(op
);
721 /* marshall the parameters */
723 *bp
++ = htonl(FSREMOVEDIR
);
724 *bp
++ = htonl(dvp
->fid
.vid
);
725 *bp
++ = htonl(dvp
->fid
.vnode
);
726 *bp
++ = htonl(dvp
->fid
.unique
);
727 *bp
++ = htonl(namesz
);
728 memcpy(bp
, name
->name
, namesz
);
729 bp
= (void *) bp
+ namesz
;
731 memset(bp
, 0, padsz
);
732 bp
= (void *) bp
+ padsz
;
735 trace_afs_make_fs_call1(call
, &dvp
->fid
, name
);
736 afs_make_op_call(op
, call
, GFP_NOFS
);
740 * deliver reply data to an FS.Link
742 static int afs_deliver_fs_link(struct afs_call
*call
)
744 struct afs_operation
*op
= call
->op
;
745 struct afs_vnode_param
*dvp
= &op
->file
[0];
746 struct afs_vnode_param
*vp
= &op
->file
[1];
750 _enter("{%u}", call
->unmarshall
);
752 ret
= afs_transfer_reply(call
);
756 /* unmarshall the reply once we've received all of it */
758 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
759 xdr_decode_AFSFetchStatus(&bp
, call
, &dvp
->scb
);
760 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
762 _leave(" = 0 [done]");
767 * FS.Link operation type
769 static const struct afs_call_type afs_RXFSLink
= {
772 .deliver
= afs_deliver_fs_link
,
773 .destructor
= afs_flat_call_destructor
,
779 void afs_fs_link(struct afs_operation
*op
)
781 const struct qstr
*name
= &op
->dentry
->d_name
;
782 struct afs_vnode_param
*dvp
= &op
->file
[0];
783 struct afs_vnode_param
*vp
= &op
->file
[1];
784 struct afs_call
*call
;
785 size_t namesz
, reqsz
, padsz
;
791 padsz
= (4 - (namesz
& 3)) & 3;
792 reqsz
= (5 * 4) + namesz
+ padsz
+ (3 * 4);
794 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSLink
, reqsz
, (21 + 21 + 6) * 4);
796 return afs_op_nomem(op
);
798 /* marshall the parameters */
800 *bp
++ = htonl(FSLINK
);
801 *bp
++ = htonl(dvp
->fid
.vid
);
802 *bp
++ = htonl(dvp
->fid
.vnode
);
803 *bp
++ = htonl(dvp
->fid
.unique
);
804 *bp
++ = htonl(namesz
);
805 memcpy(bp
, name
->name
, namesz
);
806 bp
= (void *) bp
+ namesz
;
808 memset(bp
, 0, padsz
);
809 bp
= (void *) bp
+ padsz
;
811 *bp
++ = htonl(vp
->fid
.vid
);
812 *bp
++ = htonl(vp
->fid
.vnode
);
813 *bp
++ = htonl(vp
->fid
.unique
);
815 trace_afs_make_fs_call1(call
, &vp
->fid
, name
);
816 afs_make_op_call(op
, call
, GFP_NOFS
);
820 * deliver reply data to an FS.Symlink
822 static int afs_deliver_fs_symlink(struct afs_call
*call
)
824 struct afs_operation
*op
= call
->op
;
825 struct afs_vnode_param
*dvp
= &op
->file
[0];
826 struct afs_vnode_param
*vp
= &op
->file
[1];
830 _enter("{%u}", call
->unmarshall
);
832 ret
= afs_transfer_reply(call
);
836 /* unmarshall the reply once we've received all of it */
838 xdr_decode_AFSFid(&bp
, &vp
->fid
);
839 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
840 xdr_decode_AFSFetchStatus(&bp
, call
, &dvp
->scb
);
841 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
843 _leave(" = 0 [done]");
848 * FS.Symlink operation type
850 static const struct afs_call_type afs_RXFSSymlink
= {
851 .name
= "FS.Symlink",
852 .op
= afs_FS_Symlink
,
853 .deliver
= afs_deliver_fs_symlink
,
854 .destructor
= afs_flat_call_destructor
,
858 * create a symbolic link
860 void afs_fs_symlink(struct afs_operation
*op
)
862 const struct qstr
*name
= &op
->dentry
->d_name
;
863 struct afs_vnode_param
*dvp
= &op
->file
[0];
864 struct afs_call
*call
;
865 size_t namesz
, reqsz
, padsz
, c_namesz
, c_padsz
;
871 padsz
= (4 - (namesz
& 3)) & 3;
873 c_namesz
= strlen(op
->create
.symlink
);
874 c_padsz
= (4 - (c_namesz
& 3)) & 3;
876 reqsz
= (6 * 4) + namesz
+ padsz
+ c_namesz
+ c_padsz
+ (6 * 4);
878 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSSymlink
, reqsz
,
879 (3 + 21 + 21 + 6) * 4);
881 return afs_op_nomem(op
);
883 /* marshall the parameters */
885 *bp
++ = htonl(FSSYMLINK
);
886 *bp
++ = htonl(dvp
->fid
.vid
);
887 *bp
++ = htonl(dvp
->fid
.vnode
);
888 *bp
++ = htonl(dvp
->fid
.unique
);
889 *bp
++ = htonl(namesz
);
890 memcpy(bp
, name
->name
, namesz
);
891 bp
= (void *) bp
+ namesz
;
893 memset(bp
, 0, padsz
);
894 bp
= (void *) bp
+ padsz
;
896 *bp
++ = htonl(c_namesz
);
897 memcpy(bp
, op
->create
.symlink
, c_namesz
);
898 bp
= (void *) bp
+ c_namesz
;
900 memset(bp
, 0, c_padsz
);
901 bp
= (void *) bp
+ c_padsz
;
903 *bp
++ = htonl(AFS_SET_MODE
| AFS_SET_MTIME
);
904 *bp
++ = htonl(op
->mtime
.tv_sec
); /* mtime */
905 *bp
++ = 0; /* owner */
906 *bp
++ = 0; /* group */
907 *bp
++ = htonl(S_IRWXUGO
); /* unix mode */
908 *bp
++ = 0; /* segment size */
910 trace_afs_make_fs_call1(call
, &dvp
->fid
, name
);
911 afs_make_op_call(op
, call
, GFP_NOFS
);
915 * deliver reply data to an FS.Rename
917 static int afs_deliver_fs_rename(struct afs_call
*call
)
919 struct afs_operation
*op
= call
->op
;
920 struct afs_vnode_param
*orig_dvp
= &op
->file
[0];
921 struct afs_vnode_param
*new_dvp
= &op
->file
[1];
925 ret
= afs_transfer_reply(call
);
930 /* If the two dirs are the same, we have two copies of the same status
931 * report, so we just decode it twice.
933 xdr_decode_AFSFetchStatus(&bp
, call
, &orig_dvp
->scb
);
934 xdr_decode_AFSFetchStatus(&bp
, call
, &new_dvp
->scb
);
935 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
937 _leave(" = 0 [done]");
942 * FS.Rename operation type
944 static const struct afs_call_type afs_RXFSRename
= {
947 .deliver
= afs_deliver_fs_rename
,
948 .destructor
= afs_flat_call_destructor
,
952 * Rename/move a file or directory.
954 void afs_fs_rename(struct afs_operation
*op
)
956 struct afs_vnode_param
*orig_dvp
= &op
->file
[0];
957 struct afs_vnode_param
*new_dvp
= &op
->file
[1];
958 const struct qstr
*orig_name
= &op
->dentry
->d_name
;
959 const struct qstr
*new_name
= &op
->dentry_2
->d_name
;
960 struct afs_call
*call
;
961 size_t reqsz
, o_namesz
, o_padsz
, n_namesz
, n_padsz
;
966 o_namesz
= orig_name
->len
;
967 o_padsz
= (4 - (o_namesz
& 3)) & 3;
969 n_namesz
= new_name
->len
;
970 n_padsz
= (4 - (n_namesz
& 3)) & 3;
973 4 + o_namesz
+ o_padsz
+
975 4 + n_namesz
+ n_padsz
;
977 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSRename
, reqsz
, (21 + 21 + 6) * 4);
979 return afs_op_nomem(op
);
981 /* marshall the parameters */
983 *bp
++ = htonl(FSRENAME
);
984 *bp
++ = htonl(orig_dvp
->fid
.vid
);
985 *bp
++ = htonl(orig_dvp
->fid
.vnode
);
986 *bp
++ = htonl(orig_dvp
->fid
.unique
);
987 *bp
++ = htonl(o_namesz
);
988 memcpy(bp
, orig_name
->name
, o_namesz
);
989 bp
= (void *) bp
+ o_namesz
;
991 memset(bp
, 0, o_padsz
);
992 bp
= (void *) bp
+ o_padsz
;
995 *bp
++ = htonl(new_dvp
->fid
.vid
);
996 *bp
++ = htonl(new_dvp
->fid
.vnode
);
997 *bp
++ = htonl(new_dvp
->fid
.unique
);
998 *bp
++ = htonl(n_namesz
);
999 memcpy(bp
, new_name
->name
, n_namesz
);
1000 bp
= (void *) bp
+ n_namesz
;
1002 memset(bp
, 0, n_padsz
);
1003 bp
= (void *) bp
+ n_padsz
;
1006 trace_afs_make_fs_call2(call
, &orig_dvp
->fid
, orig_name
, new_name
);
1007 afs_make_op_call(op
, call
, GFP_NOFS
);
1011 * Deliver reply data to FS.StoreData or FS.StoreStatus
1013 static int afs_deliver_fs_store_data(struct afs_call
*call
)
1015 struct afs_operation
*op
= call
->op
;
1016 struct afs_vnode_param
*vp
= &op
->file
[0];
1022 ret
= afs_transfer_reply(call
);
1026 /* unmarshall the reply once we've received all of it */
1028 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
1029 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
1031 _leave(" = 0 [done]");
1036 * FS.StoreData operation type
1038 static const struct afs_call_type afs_RXFSStoreData
= {
1039 .name
= "FS.StoreData",
1040 .op
= afs_FS_StoreData
,
1041 .deliver
= afs_deliver_fs_store_data
,
1042 .destructor
= afs_flat_call_destructor
,
1045 static const struct afs_call_type afs_RXFSStoreData64
= {
1046 .name
= "FS.StoreData64",
1047 .op
= afs_FS_StoreData64
,
1048 .deliver
= afs_deliver_fs_store_data
,
1049 .destructor
= afs_flat_call_destructor
,
1053 * store a set of pages to a very large file
1055 static void afs_fs_store_data64(struct afs_operation
*op
)
1057 struct afs_vnode_param
*vp
= &op
->file
[0];
1058 struct afs_call
*call
;
1061 _enter(",%x,{%llx:%llu},,",
1062 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
1064 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreData64
,
1065 (4 + 6 + 3 * 2) * 4,
1068 return afs_op_nomem(op
);
1070 call
->write_iter
= op
->store
.write_iter
;
1072 /* marshall the parameters */
1074 *bp
++ = htonl(FSSTOREDATA64
);
1075 *bp
++ = htonl(vp
->fid
.vid
);
1076 *bp
++ = htonl(vp
->fid
.vnode
);
1077 *bp
++ = htonl(vp
->fid
.unique
);
1079 *bp
++ = htonl(AFS_SET_MTIME
); /* mask */
1080 *bp
++ = htonl(op
->mtime
.tv_sec
); /* mtime */
1081 *bp
++ = 0; /* owner */
1082 *bp
++ = 0; /* group */
1083 *bp
++ = 0; /* unix mode */
1084 *bp
++ = 0; /* segment size */
1086 *bp
++ = htonl(upper_32_bits(op
->store
.pos
));
1087 *bp
++ = htonl(lower_32_bits(op
->store
.pos
));
1088 *bp
++ = htonl(upper_32_bits(op
->store
.size
));
1089 *bp
++ = htonl(lower_32_bits(op
->store
.size
));
1090 *bp
++ = htonl(upper_32_bits(op
->store
.i_size
));
1091 *bp
++ = htonl(lower_32_bits(op
->store
.i_size
));
1093 trace_afs_make_fs_call(call
, &vp
->fid
);
1094 afs_make_op_call(op
, call
, GFP_NOFS
);
1098 * Write data to a file on the server.
1100 void afs_fs_store_data(struct afs_operation
*op
)
1102 struct afs_vnode_param
*vp
= &op
->file
[0];
1103 struct afs_call
*call
;
1106 _enter(",%x,{%llx:%llu},,",
1107 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
1109 _debug("size %llx, at %llx, i_size %llx",
1110 (unsigned long long)op
->store
.size
,
1111 (unsigned long long)op
->store
.pos
,
1112 (unsigned long long)op
->store
.i_size
);
1114 if (test_bit(AFS_SERVER_FL_HAS_FS64
, &op
->server
->flags
))
1115 return afs_fs_store_data64(op
);
1117 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreData
,
1121 return afs_op_nomem(op
);
1123 call
->write_iter
= op
->store
.write_iter
;
1125 /* marshall the parameters */
1127 *bp
++ = htonl(FSSTOREDATA
);
1128 *bp
++ = htonl(vp
->fid
.vid
);
1129 *bp
++ = htonl(vp
->fid
.vnode
);
1130 *bp
++ = htonl(vp
->fid
.unique
);
1132 *bp
++ = htonl(AFS_SET_MTIME
); /* mask */
1133 *bp
++ = htonl(op
->mtime
.tv_sec
); /* mtime */
1134 *bp
++ = 0; /* owner */
1135 *bp
++ = 0; /* group */
1136 *bp
++ = 0; /* unix mode */
1137 *bp
++ = 0; /* segment size */
1139 *bp
++ = htonl(lower_32_bits(op
->store
.pos
));
1140 *bp
++ = htonl(lower_32_bits(op
->store
.size
));
1141 *bp
++ = htonl(lower_32_bits(op
->store
.i_size
));
1143 trace_afs_make_fs_call(call
, &vp
->fid
);
1144 afs_make_op_call(op
, call
, GFP_NOFS
);
1148 * FS.StoreStatus operation type
1150 static const struct afs_call_type afs_RXFSStoreStatus
= {
1151 .name
= "FS.StoreStatus",
1152 .op
= afs_FS_StoreStatus
,
1153 .deliver
= afs_deliver_fs_store_data
,
1154 .destructor
= afs_flat_call_destructor
,
1157 static const struct afs_call_type afs_RXFSStoreData_as_Status
= {
1158 .name
= "FS.StoreData",
1159 .op
= afs_FS_StoreData
,
1160 .deliver
= afs_deliver_fs_store_data
,
1161 .destructor
= afs_flat_call_destructor
,
1164 static const struct afs_call_type afs_RXFSStoreData64_as_Status
= {
1165 .name
= "FS.StoreData64",
1166 .op
= afs_FS_StoreData64
,
1167 .deliver
= afs_deliver_fs_store_data
,
1168 .destructor
= afs_flat_call_destructor
,
1172 * set the attributes on a very large file, using FS.StoreData rather than
1173 * FS.StoreStatus so as to alter the file size also
1175 static void afs_fs_setattr_size64(struct afs_operation
*op
)
1177 struct afs_vnode_param
*vp
= &op
->file
[0];
1178 struct afs_call
*call
;
1179 struct iattr
*attr
= op
->setattr
.attr
;
1182 _enter(",%x,{%llx:%llu},,",
1183 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
1185 ASSERT(attr
->ia_valid
& ATTR_SIZE
);
1187 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreData64_as_Status
,
1188 (4 + 6 + 3 * 2) * 4,
1191 return afs_op_nomem(op
);
1193 /* marshall the parameters */
1195 *bp
++ = htonl(FSSTOREDATA64
);
1196 *bp
++ = htonl(vp
->fid
.vid
);
1197 *bp
++ = htonl(vp
->fid
.vnode
);
1198 *bp
++ = htonl(vp
->fid
.unique
);
1200 xdr_encode_AFS_StoreStatus(&bp
, attr
);
1202 *bp
++ = htonl(upper_32_bits(attr
->ia_size
)); /* position of start of write */
1203 *bp
++ = htonl(lower_32_bits(attr
->ia_size
));
1204 *bp
++ = 0; /* size of write */
1206 *bp
++ = htonl(upper_32_bits(attr
->ia_size
)); /* new file length */
1207 *bp
++ = htonl(lower_32_bits(attr
->ia_size
));
1209 trace_afs_make_fs_call(call
, &vp
->fid
);
1210 afs_make_op_call(op
, call
, GFP_NOFS
);
1214 * set the attributes on a file, using FS.StoreData rather than FS.StoreStatus
1215 * so as to alter the file size also
1217 static void afs_fs_setattr_size(struct afs_operation
*op
)
1219 struct afs_vnode_param
*vp
= &op
->file
[0];
1220 struct afs_call
*call
;
1221 struct iattr
*attr
= op
->setattr
.attr
;
1224 _enter(",%x,{%llx:%llu},,",
1225 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
1227 ASSERT(attr
->ia_valid
& ATTR_SIZE
);
1228 if (test_bit(AFS_SERVER_FL_HAS_FS64
, &op
->server
->flags
))
1229 return afs_fs_setattr_size64(op
);
1231 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreData_as_Status
,
1235 return afs_op_nomem(op
);
1237 /* marshall the parameters */
1239 *bp
++ = htonl(FSSTOREDATA
);
1240 *bp
++ = htonl(vp
->fid
.vid
);
1241 *bp
++ = htonl(vp
->fid
.vnode
);
1242 *bp
++ = htonl(vp
->fid
.unique
);
1244 xdr_encode_AFS_StoreStatus(&bp
, attr
);
1246 *bp
++ = htonl(attr
->ia_size
); /* position of start of write */
1247 *bp
++ = 0; /* size of write */
1248 *bp
++ = htonl(attr
->ia_size
); /* new file length */
1250 trace_afs_make_fs_call(call
, &vp
->fid
);
1251 afs_make_op_call(op
, call
, GFP_NOFS
);
1255 * set the attributes on a file, using FS.StoreData if there's a change in file
1256 * size, and FS.StoreStatus otherwise
1258 void afs_fs_setattr(struct afs_operation
*op
)
1260 struct afs_vnode_param
*vp
= &op
->file
[0];
1261 struct afs_call
*call
;
1262 struct iattr
*attr
= op
->setattr
.attr
;
1265 if (attr
->ia_valid
& ATTR_SIZE
)
1266 return afs_fs_setattr_size(op
);
1268 _enter(",%x,{%llx:%llu},,",
1269 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
1271 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreStatus
,
1275 return afs_op_nomem(op
);
1277 /* marshall the parameters */
1279 *bp
++ = htonl(FSSTORESTATUS
);
1280 *bp
++ = htonl(vp
->fid
.vid
);
1281 *bp
++ = htonl(vp
->fid
.vnode
);
1282 *bp
++ = htonl(vp
->fid
.unique
);
1284 xdr_encode_AFS_StoreStatus(&bp
, op
->setattr
.attr
);
1286 trace_afs_make_fs_call(call
, &vp
->fid
);
1287 afs_make_op_call(op
, call
, GFP_NOFS
);
1291 * deliver reply data to an FS.GetVolumeStatus
1293 static int afs_deliver_fs_get_volume_status(struct afs_call
*call
)
1295 struct afs_operation
*op
= call
->op
;
1301 _enter("{%u}", call
->unmarshall
);
1303 switch (call
->unmarshall
) {
1306 afs_extract_to_buf(call
, 12 * 4);
1309 /* extract the returned status record */
1311 _debug("extract status");
1312 ret
= afs_extract_data(call
, true);
1317 xdr_decode_AFSFetchVolumeStatus(&bp
, &op
->volstatus
.vs
);
1319 afs_extract_to_tmp(call
);
1322 /* extract the volume name length */
1324 ret
= afs_extract_data(call
, true);
1328 call
->count
= ntohl(call
->tmp
);
1329 _debug("volname length: %u", call
->count
);
1330 if (call
->count
>= AFSNAMEMAX
)
1331 return afs_protocol_error(call
, afs_eproto_volname_len
);
1332 size
= (call
->count
+ 3) & ~3; /* It's padded */
1333 afs_extract_to_buf(call
, size
);
1337 /* extract the volume name */
1339 _debug("extract volname");
1340 ret
= afs_extract_data(call
, true);
1346 _debug("volname '%s'", p
);
1347 afs_extract_to_tmp(call
);
1351 /* extract the offline message length */
1353 ret
= afs_extract_data(call
, true);
1357 call
->count
= ntohl(call
->tmp
);
1358 _debug("offline msg length: %u", call
->count
);
1359 if (call
->count
>= AFSNAMEMAX
)
1360 return afs_protocol_error(call
, afs_eproto_offline_msg_len
);
1361 size
= (call
->count
+ 3) & ~3; /* It's padded */
1362 afs_extract_to_buf(call
, size
);
1366 /* extract the offline message */
1368 _debug("extract offline");
1369 ret
= afs_extract_data(call
, true);
1375 _debug("offline '%s'", p
);
1377 afs_extract_to_tmp(call
);
1381 /* extract the message of the day length */
1383 ret
= afs_extract_data(call
, true);
1387 call
->count
= ntohl(call
->tmp
);
1388 _debug("motd length: %u", call
->count
);
1389 if (call
->count
>= AFSNAMEMAX
)
1390 return afs_protocol_error(call
, afs_eproto_motd_len
);
1391 size
= (call
->count
+ 3) & ~3; /* It's padded */
1392 afs_extract_to_buf(call
, size
);
1396 /* extract the message of the day */
1398 _debug("extract motd");
1399 ret
= afs_extract_data(call
, false);
1405 _debug("motd '%s'", p
);
1414 _leave(" = 0 [done]");
1419 * FS.GetVolumeStatus operation type
1421 static const struct afs_call_type afs_RXFSGetVolumeStatus
= {
1422 .name
= "FS.GetVolumeStatus",
1423 .op
= afs_FS_GetVolumeStatus
,
1424 .deliver
= afs_deliver_fs_get_volume_status
,
1425 .destructor
= afs_flat_call_destructor
,
1429 * fetch the status of a volume
1431 void afs_fs_get_volume_status(struct afs_operation
*op
)
1433 struct afs_vnode_param
*vp
= &op
->file
[0];
1434 struct afs_call
*call
;
1439 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSGetVolumeStatus
, 2 * 4,
1440 max(12 * 4, AFSOPAQUEMAX
+ 1));
1442 return afs_op_nomem(op
);
1444 /* marshall the parameters */
1446 bp
[0] = htonl(FSGETVOLUMESTATUS
);
1447 bp
[1] = htonl(vp
->fid
.vid
);
1449 trace_afs_make_fs_call(call
, &vp
->fid
);
1450 afs_make_op_call(op
, call
, GFP_NOFS
);
1454 * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock
1456 static int afs_deliver_fs_xxxx_lock(struct afs_call
*call
)
1458 struct afs_operation
*op
= call
->op
;
1462 _enter("{%u}", call
->unmarshall
);
1464 ret
= afs_transfer_reply(call
);
1468 /* unmarshall the reply once we've received all of it */
1470 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
1472 _leave(" = 0 [done]");
1477 * FS.SetLock operation type
1479 static const struct afs_call_type afs_RXFSSetLock
= {
1480 .name
= "FS.SetLock",
1481 .op
= afs_FS_SetLock
,
1482 .deliver
= afs_deliver_fs_xxxx_lock
,
1483 .done
= afs_lock_op_done
,
1484 .destructor
= afs_flat_call_destructor
,
1488 * FS.ExtendLock operation type
1490 static const struct afs_call_type afs_RXFSExtendLock
= {
1491 .name
= "FS.ExtendLock",
1492 .op
= afs_FS_ExtendLock
,
1493 .deliver
= afs_deliver_fs_xxxx_lock
,
1494 .done
= afs_lock_op_done
,
1495 .destructor
= afs_flat_call_destructor
,
1499 * FS.ReleaseLock operation type
1501 static const struct afs_call_type afs_RXFSReleaseLock
= {
1502 .name
= "FS.ReleaseLock",
1503 .op
= afs_FS_ReleaseLock
,
1504 .deliver
= afs_deliver_fs_xxxx_lock
,
1505 .destructor
= afs_flat_call_destructor
,
1509 * Set a lock on a file
1511 void afs_fs_set_lock(struct afs_operation
*op
)
1513 struct afs_vnode_param
*vp
= &op
->file
[0];
1514 struct afs_call
*call
;
1519 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSSetLock
, 5 * 4, 6 * 4);
1521 return afs_op_nomem(op
);
1523 /* marshall the parameters */
1525 *bp
++ = htonl(FSSETLOCK
);
1526 *bp
++ = htonl(vp
->fid
.vid
);
1527 *bp
++ = htonl(vp
->fid
.vnode
);
1528 *bp
++ = htonl(vp
->fid
.unique
);
1529 *bp
++ = htonl(op
->lock
.type
);
1531 trace_afs_make_fs_calli(call
, &vp
->fid
, op
->lock
.type
);
1532 afs_make_op_call(op
, call
, GFP_NOFS
);
1536 * extend a lock on a file
1538 void afs_fs_extend_lock(struct afs_operation
*op
)
1540 struct afs_vnode_param
*vp
= &op
->file
[0];
1541 struct afs_call
*call
;
1546 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSExtendLock
, 4 * 4, 6 * 4);
1548 return afs_op_nomem(op
);
1550 /* marshall the parameters */
1552 *bp
++ = htonl(FSEXTENDLOCK
);
1553 *bp
++ = htonl(vp
->fid
.vid
);
1554 *bp
++ = htonl(vp
->fid
.vnode
);
1555 *bp
++ = htonl(vp
->fid
.unique
);
1557 trace_afs_make_fs_call(call
, &vp
->fid
);
1558 afs_make_op_call(op
, call
, GFP_NOFS
);
1562 * release a lock on a file
1564 void afs_fs_release_lock(struct afs_operation
*op
)
1566 struct afs_vnode_param
*vp
= &op
->file
[0];
1567 struct afs_call
*call
;
1572 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSReleaseLock
, 4 * 4, 6 * 4);
1574 return afs_op_nomem(op
);
1576 /* marshall the parameters */
1578 *bp
++ = htonl(FSRELEASELOCK
);
1579 *bp
++ = htonl(vp
->fid
.vid
);
1580 *bp
++ = htonl(vp
->fid
.vnode
);
1581 *bp
++ = htonl(vp
->fid
.unique
);
1583 trace_afs_make_fs_call(call
, &vp
->fid
);
1584 afs_make_op_call(op
, call
, GFP_NOFS
);
1588 * Deliver reply data to an FS.GiveUpAllCallBacks operation.
1590 static int afs_deliver_fs_give_up_all_callbacks(struct afs_call
*call
)
1592 return afs_transfer_reply(call
);
1596 * FS.GiveUpAllCallBacks operation type
1598 static const struct afs_call_type afs_RXFSGiveUpAllCallBacks
= {
1599 .name
= "FS.GiveUpAllCallBacks",
1600 .op
= afs_FS_GiveUpAllCallBacks
,
1601 .deliver
= afs_deliver_fs_give_up_all_callbacks
,
1602 .destructor
= afs_flat_call_destructor
,
1606 * Flush all the callbacks we have on a server.
1608 int afs_fs_give_up_all_callbacks(struct afs_net
*net
,
1609 struct afs_server
*server
,
1610 struct afs_addr_cursor
*ac
,
1613 struct afs_call
*call
;
1618 call
= afs_alloc_flat_call(net
, &afs_RXFSGiveUpAllCallBacks
, 1 * 4, 0);
1624 /* marshall the parameters */
1626 *bp
++ = htonl(FSGIVEUPALLCALLBACKS
);
1628 call
->server
= afs_use_server(server
, afs_server_trace_give_up_cb
);
1629 afs_make_call(ac
, call
, GFP_NOFS
);
1630 return afs_wait_for_call_to_complete(call
, ac
);
1634 * Deliver reply data to an FS.GetCapabilities operation.
1636 static int afs_deliver_fs_get_capabilities(struct afs_call
*call
)
1641 _enter("{%u,%zu}", call
->unmarshall
, iov_iter_count(call
->iter
));
1643 switch (call
->unmarshall
) {
1645 afs_extract_to_tmp(call
);
1649 /* Extract the capabilities word count */
1651 ret
= afs_extract_data(call
, true);
1655 count
= ntohl(call
->tmp
);
1656 call
->count
= count
;
1657 call
->count2
= count
;
1659 call
->unmarshall
= 4;
1664 /* Extract the first word of the capabilities to call->tmp */
1665 afs_extract_to_tmp(call
);
1670 ret
= afs_extract_data(call
, false);
1674 afs_extract_discard(call
, (count
- 1) * sizeof(__be32
));
1678 /* Extract remaining capabilities words */
1680 ret
= afs_extract_data(call
, false);
1688 _leave(" = 0 [done]");
1693 * FS.GetCapabilities operation type
1695 static const struct afs_call_type afs_RXFSGetCapabilities
= {
1696 .name
= "FS.GetCapabilities",
1697 .op
= afs_FS_GetCapabilities
,
1698 .deliver
= afs_deliver_fs_get_capabilities
,
1699 .done
= afs_fileserver_probe_result
,
1700 .destructor
= afs_flat_call_destructor
,
1704 * Probe a fileserver for the capabilities that it supports. This RPC can
1705 * reply with up to 196 words. The operation is asynchronous and if we managed
1706 * to allocate a call, true is returned the result is delivered through the
1707 * ->done() - otherwise we return false to indicate we didn't even try.
1709 bool afs_fs_get_capabilities(struct afs_net
*net
, struct afs_server
*server
,
1710 struct afs_addr_cursor
*ac
, struct key
*key
)
1712 struct afs_call
*call
;
1717 call
= afs_alloc_flat_call(net
, &afs_RXFSGetCapabilities
, 1 * 4, 16 * 4);
1722 call
->server
= afs_use_server(server
, afs_server_trace_get_caps
);
1723 call
->upgrade
= true;
1725 call
->max_lifespan
= AFS_PROBE_MAX_LIFESPAN
;
1727 /* marshall the parameters */
1729 *bp
++ = htonl(FSGETCAPABILITIES
);
1731 trace_afs_make_fs_call(call
, NULL
);
1732 afs_make_call(ac
, call
, GFP_NOFS
);
1738 * Deliver reply data to an FS.InlineBulkStatus call
1740 static int afs_deliver_fs_inline_bulk_status(struct afs_call
*call
)
1742 struct afs_operation
*op
= call
->op
;
1743 struct afs_status_cb
*scb
;
1748 _enter("{%u}", call
->unmarshall
);
1750 switch (call
->unmarshall
) {
1752 afs_extract_to_tmp(call
);
1756 /* Extract the file status count and array in two steps */
1758 _debug("extract status count");
1759 ret
= afs_extract_data(call
, true);
1763 tmp
= ntohl(call
->tmp
);
1764 _debug("status count: %u/%u", tmp
, op
->nr_files
);
1765 if (tmp
!= op
->nr_files
)
1766 return afs_protocol_error(call
, afs_eproto_ibulkst_count
);
1771 afs_extract_to_buf(call
, 21 * sizeof(__be32
));
1775 _debug("extract status array %u", call
->count
);
1776 ret
= afs_extract_data(call
, true);
1780 switch (call
->count
) {
1782 scb
= &op
->file
[0].scb
;
1785 scb
= &op
->file
[1].scb
;
1788 scb
= &op
->more_files
[call
->count
- 2].scb
;
1793 xdr_decode_AFSFetchStatus(&bp
, call
, scb
);
1796 if (call
->count
< op
->nr_files
)
1801 afs_extract_to_tmp(call
);
1804 /* Extract the callback count and array in two steps */
1806 _debug("extract CB count");
1807 ret
= afs_extract_data(call
, true);
1811 tmp
= ntohl(call
->tmp
);
1812 _debug("CB count: %u", tmp
);
1813 if (tmp
!= op
->nr_files
)
1814 return afs_protocol_error(call
, afs_eproto_ibulkst_cb_count
);
1818 afs_extract_to_buf(call
, 3 * sizeof(__be32
));
1822 _debug("extract CB array");
1823 ret
= afs_extract_data(call
, true);
1827 _debug("unmarshall CB array");
1828 switch (call
->count
) {
1830 scb
= &op
->file
[0].scb
;
1833 scb
= &op
->file
[1].scb
;
1836 scb
= &op
->more_files
[call
->count
- 2].scb
;
1841 xdr_decode_AFSCallBack(&bp
, call
, scb
);
1843 if (call
->count
< op
->nr_files
)
1846 afs_extract_to_buf(call
, 6 * sizeof(__be32
));
1851 ret
= afs_extract_data(call
, false);
1856 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
1865 _leave(" = 0 [done]");
1869 static void afs_done_fs_inline_bulk_status(struct afs_call
*call
)
1871 if (call
->error
== -ECONNABORTED
&&
1872 call
->abort_code
== RX_INVALID_OPERATION
) {
1873 set_bit(AFS_SERVER_FL_NO_IBULK
, &call
->server
->flags
);
1875 set_bit(AFS_VOLUME_MAYBE_NO_IBULK
, &call
->op
->volume
->flags
);
1880 * FS.InlineBulkStatus operation type
1882 static const struct afs_call_type afs_RXFSInlineBulkStatus
= {
1883 .name
= "FS.InlineBulkStatus",
1884 .op
= afs_FS_InlineBulkStatus
,
1885 .deliver
= afs_deliver_fs_inline_bulk_status
,
1886 .done
= afs_done_fs_inline_bulk_status
,
1887 .destructor
= afs_flat_call_destructor
,
1891 * Fetch the status information for up to 50 files
1893 void afs_fs_inline_bulk_status(struct afs_operation
*op
)
1895 struct afs_vnode_param
*dvp
= &op
->file
[0];
1896 struct afs_vnode_param
*vp
= &op
->file
[1];
1897 struct afs_call
*call
;
1901 if (test_bit(AFS_SERVER_FL_NO_IBULK
, &op
->server
->flags
)) {
1902 op
->error
= -ENOTSUPP
;
1906 _enter(",%x,{%llx:%llu},%u",
1907 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
, op
->nr_files
);
1909 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSInlineBulkStatus
,
1910 (2 + op
->nr_files
* 3) * 4,
1913 return afs_op_nomem(op
);
1915 /* marshall the parameters */
1917 *bp
++ = htonl(FSINLINEBULKSTATUS
);
1918 *bp
++ = htonl(op
->nr_files
);
1919 *bp
++ = htonl(dvp
->fid
.vid
);
1920 *bp
++ = htonl(dvp
->fid
.vnode
);
1921 *bp
++ = htonl(dvp
->fid
.unique
);
1922 *bp
++ = htonl(vp
->fid
.vid
);
1923 *bp
++ = htonl(vp
->fid
.vnode
);
1924 *bp
++ = htonl(vp
->fid
.unique
);
1925 for (i
= 0; i
< op
->nr_files
- 2; i
++) {
1926 *bp
++ = htonl(op
->more_files
[i
].fid
.vid
);
1927 *bp
++ = htonl(op
->more_files
[i
].fid
.vnode
);
1928 *bp
++ = htonl(op
->more_files
[i
].fid
.unique
);
1931 trace_afs_make_fs_call(call
, &vp
->fid
);
1932 afs_make_op_call(op
, call
, GFP_NOFS
);
1936 * deliver reply data to an FS.FetchACL
1938 static int afs_deliver_fs_fetch_acl(struct afs_call
*call
)
1940 struct afs_operation
*op
= call
->op
;
1941 struct afs_vnode_param
*vp
= &op
->file
[0];
1942 struct afs_acl
*acl
;
1947 _enter("{%u}", call
->unmarshall
);
1949 switch (call
->unmarshall
) {
1951 afs_extract_to_tmp(call
);
1955 /* extract the returned data length */
1957 ret
= afs_extract_data(call
, true);
1961 size
= call
->count2
= ntohl(call
->tmp
);
1962 size
= round_up(size
, 4);
1964 acl
= kmalloc(struct_size(acl
, data
, size
), GFP_KERNEL
);
1968 acl
->size
= call
->count2
;
1969 afs_extract_begin(call
, acl
->data
, size
);
1973 /* extract the returned data */
1975 ret
= afs_extract_data(call
, true);
1979 afs_extract_to_buf(call
, (21 + 6) * 4);
1983 /* extract the metadata */
1985 ret
= afs_extract_data(call
, false);
1990 xdr_decode_AFSFetchStatus(&bp
, call
, &vp
->scb
);
1991 xdr_decode_AFSVolSync(&bp
, &op
->volsync
);
2000 _leave(" = 0 [done]");
2005 * FS.FetchACL operation type
2007 static const struct afs_call_type afs_RXFSFetchACL
= {
2008 .name
= "FS.FetchACL",
2009 .op
= afs_FS_FetchACL
,
2010 .deliver
= afs_deliver_fs_fetch_acl
,
2014 * Fetch the ACL for a file.
2016 void afs_fs_fetch_acl(struct afs_operation
*op
)
2018 struct afs_vnode_param
*vp
= &op
->file
[0];
2019 struct afs_call
*call
;
2022 _enter(",%x,{%llx:%llu},,",
2023 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
2025 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSFetchACL
, 16, (21 + 6) * 4);
2027 return afs_op_nomem(op
);
2029 /* marshall the parameters */
2031 bp
[0] = htonl(FSFETCHACL
);
2032 bp
[1] = htonl(vp
->fid
.vid
);
2033 bp
[2] = htonl(vp
->fid
.vnode
);
2034 bp
[3] = htonl(vp
->fid
.unique
);
2036 trace_afs_make_fs_call(call
, &vp
->fid
);
2037 afs_make_op_call(op
, call
, GFP_KERNEL
);
2041 * FS.StoreACL operation type
2043 static const struct afs_call_type afs_RXFSStoreACL
= {
2044 .name
= "FS.StoreACL",
2045 .op
= afs_FS_StoreACL
,
2046 .deliver
= afs_deliver_fs_file_status_and_vol
,
2047 .destructor
= afs_flat_call_destructor
,
2051 * Fetch the ACL for a file.
2053 void afs_fs_store_acl(struct afs_operation
*op
)
2055 struct afs_vnode_param
*vp
= &op
->file
[0];
2056 struct afs_call
*call
;
2057 const struct afs_acl
*acl
= op
->acl
;
2061 _enter(",%x,{%llx:%llu},,",
2062 key_serial(op
->key
), vp
->fid
.vid
, vp
->fid
.vnode
);
2064 size
= round_up(acl
->size
, 4);
2065 call
= afs_alloc_flat_call(op
->net
, &afs_RXFSStoreACL
,
2066 5 * 4 + size
, (21 + 6) * 4);
2068 return afs_op_nomem(op
);
2070 /* marshall the parameters */
2072 bp
[0] = htonl(FSSTOREACL
);
2073 bp
[1] = htonl(vp
->fid
.vid
);
2074 bp
[2] = htonl(vp
->fid
.vnode
);
2075 bp
[3] = htonl(vp
->fid
.unique
);
2076 bp
[4] = htonl(acl
->size
);
2077 memcpy(&bp
[5], acl
->data
, acl
->size
);
2078 if (acl
->size
!= size
)
2079 memset((void *)&bp
[5] + acl
->size
, 0, size
- acl
->size
);
2081 trace_afs_make_fs_call(call
, &vp
->fid
);
2082 afs_make_op_call(op
, call
, GFP_KERNEL
);