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9#include <linux/mm.h>
10#include <linux/errno.h>
11#include <linux/string.h>
12#include <linux/sunrpc/clnt.h>
13#include <linux/slab.h>
14#include <linux/nfs.h>
15#include <linux/nfs3.h>
16#include <linux/nfs_fs.h>
17#include <linux/nfs_page.h>
18#include <linux/lockd/bind.h>
19#include <linux/nfs_mount.h>
20#include <linux/freezer.h>
21
22#include "iostat.h"
23#include "internal.h"
24
25#define NFSDBG_FACILITY NFSDBG_PROC
26
27
28static int
29nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
30{
31 int res;
32 do {
33 res = rpc_call_sync(clnt, msg, flags);
34 if (res != -EJUKEBOX && res != -EKEYEXPIRED)
35 break;
36 freezable_schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
37 res = -ERESTARTSYS;
38 } while (!fatal_signal_pending(current));
39 return res;
40}
41
42#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
43
44static int
45nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
46{
47 if (task->tk_status != -EJUKEBOX && task->tk_status != -EKEYEXPIRED)
48 return 0;
49 if (task->tk_status == -EJUKEBOX)
50 nfs_inc_stats(inode, NFSIOS_DELAY);
51 task->tk_status = 0;
52 rpc_restart_call(task);
53 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
54 return 1;
55}
56
57static int
58do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
59 struct nfs_fsinfo *info)
60{
61 struct rpc_message msg = {
62 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
63 .rpc_argp = fhandle,
64 .rpc_resp = info,
65 };
66 int status;
67
68 dprintk("%s: call fsinfo\n", __func__);
69 nfs_fattr_init(info->fattr);
70 status = rpc_call_sync(client, &msg, 0);
71 dprintk("%s: reply fsinfo: %d\n", __func__, status);
72 if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
73 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
74 msg.rpc_resp = info->fattr;
75 status = rpc_call_sync(client, &msg, 0);
76 dprintk("%s: reply getattr: %d\n", __func__, status);
77 }
78 return status;
79}
80
81
82
83
84static int
85nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
86 struct nfs_fsinfo *info)
87{
88 int status;
89
90 status = do_proc_get_root(server->client, fhandle, info);
91 if (status && server->nfs_client->cl_rpcclient != server->client)
92 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
93 return status;
94}
95
96
97
98
99static int
100nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
101 struct nfs_fattr *fattr)
102{
103 struct rpc_message msg = {
104 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
105 .rpc_argp = fhandle,
106 .rpc_resp = fattr,
107 };
108 int status;
109
110 dprintk("NFS call getattr\n");
111 nfs_fattr_init(fattr);
112 status = rpc_call_sync(server->client, &msg, 0);
113 dprintk("NFS reply getattr: %d\n", status);
114 return status;
115}
116
117static int
118nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
119 struct iattr *sattr)
120{
121 struct inode *inode = dentry->d_inode;
122 struct nfs3_sattrargs arg = {
123 .fh = NFS_FH(inode),
124 .sattr = sattr,
125 };
126 struct rpc_message msg = {
127 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
128 .rpc_argp = &arg,
129 .rpc_resp = fattr,
130 };
131 int status;
132
133 dprintk("NFS call setattr\n");
134 if (sattr->ia_valid & ATTR_FILE)
135 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
136 nfs_fattr_init(fattr);
137 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
138 if (status == 0)
139 nfs_setattr_update_inode(inode, sattr);
140 dprintk("NFS reply setattr: %d\n", status);
141 return status;
142}
143
144static int
145nfs3_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name,
146 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
147{
148 struct nfs3_diropargs arg = {
149 .fh = NFS_FH(dir),
150 .name = name->name,
151 .len = name->len
152 };
153 struct nfs3_diropres res = {
154 .fh = fhandle,
155 .fattr = fattr
156 };
157 struct rpc_message msg = {
158 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
159 .rpc_argp = &arg,
160 .rpc_resp = &res,
161 };
162 int status;
163
164 dprintk("NFS call lookup %s\n", name->name);
165 res.dir_attr = nfs_alloc_fattr();
166 if (res.dir_attr == NULL)
167 return -ENOMEM;
168
169 nfs_fattr_init(fattr);
170 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
171 nfs_refresh_inode(dir, res.dir_attr);
172 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
173 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
174 msg.rpc_argp = fhandle;
175 msg.rpc_resp = fattr;
176 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
177 }
178 nfs_free_fattr(res.dir_attr);
179 dprintk("NFS reply lookup: %d\n", status);
180 return status;
181}
182
183static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
184{
185 struct nfs3_accessargs arg = {
186 .fh = NFS_FH(inode),
187 };
188 struct nfs3_accessres res;
189 struct rpc_message msg = {
190 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
191 .rpc_argp = &arg,
192 .rpc_resp = &res,
193 .rpc_cred = entry->cred,
194 };
195 int mode = entry->mask;
196 int status = -ENOMEM;
197
198 dprintk("NFS call access\n");
199
200 if (mode & MAY_READ)
201 arg.access |= NFS3_ACCESS_READ;
202 if (S_ISDIR(inode->i_mode)) {
203 if (mode & MAY_WRITE)
204 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
205 if (mode & MAY_EXEC)
206 arg.access |= NFS3_ACCESS_LOOKUP;
207 } else {
208 if (mode & MAY_WRITE)
209 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
210 if (mode & MAY_EXEC)
211 arg.access |= NFS3_ACCESS_EXECUTE;
212 }
213
214 res.fattr = nfs_alloc_fattr();
215 if (res.fattr == NULL)
216 goto out;
217
218 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
219 nfs_refresh_inode(inode, res.fattr);
220 if (status == 0) {
221 entry->mask = 0;
222 if (res.access & NFS3_ACCESS_READ)
223 entry->mask |= MAY_READ;
224 if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
225 entry->mask |= MAY_WRITE;
226 if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
227 entry->mask |= MAY_EXEC;
228 }
229 nfs_free_fattr(res.fattr);
230out:
231 dprintk("NFS reply access: %d\n", status);
232 return status;
233}
234
235static int nfs3_proc_readlink(struct inode *inode, struct page *page,
236 unsigned int pgbase, unsigned int pglen)
237{
238 struct nfs_fattr *fattr;
239 struct nfs3_readlinkargs args = {
240 .fh = NFS_FH(inode),
241 .pgbase = pgbase,
242 .pglen = pglen,
243 .pages = &page
244 };
245 struct rpc_message msg = {
246 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
247 .rpc_argp = &args,
248 };
249 int status = -ENOMEM;
250
251 dprintk("NFS call readlink\n");
252 fattr = nfs_alloc_fattr();
253 if (fattr == NULL)
254 goto out;
255 msg.rpc_resp = fattr;
256
257 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
258 nfs_refresh_inode(inode, fattr);
259 nfs_free_fattr(fattr);
260out:
261 dprintk("NFS reply readlink: %d\n", status);
262 return status;
263}
264
265struct nfs3_createdata {
266 struct rpc_message msg;
267 union {
268 struct nfs3_createargs create;
269 struct nfs3_mkdirargs mkdir;
270 struct nfs3_symlinkargs symlink;
271 struct nfs3_mknodargs mknod;
272 } arg;
273 struct nfs3_diropres res;
274 struct nfs_fh fh;
275 struct nfs_fattr fattr;
276 struct nfs_fattr dir_attr;
277};
278
279static struct nfs3_createdata *nfs3_alloc_createdata(void)
280{
281 struct nfs3_createdata *data;
282
283 data = kzalloc(sizeof(*data), GFP_KERNEL);
284 if (data != NULL) {
285 data->msg.rpc_argp = &data->arg;
286 data->msg.rpc_resp = &data->res;
287 data->res.fh = &data->fh;
288 data->res.fattr = &data->fattr;
289 data->res.dir_attr = &data->dir_attr;
290 nfs_fattr_init(data->res.fattr);
291 nfs_fattr_init(data->res.dir_attr);
292 }
293 return data;
294}
295
296static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
297{
298 int status;
299
300 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
301 nfs_post_op_update_inode(dir, data->res.dir_attr);
302 if (status == 0)
303 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
304 return status;
305}
306
307static void nfs3_free_createdata(struct nfs3_createdata *data)
308{
309 kfree(data);
310}
311
312
313
314
315static int
316nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
317 int flags, struct nfs_open_context *ctx)
318{
319 struct nfs3_createdata *data;
320 umode_t mode = sattr->ia_mode;
321 int status = -ENOMEM;
322
323 dprintk("NFS call create %s\n", dentry->d_name.name);
324
325 data = nfs3_alloc_createdata();
326 if (data == NULL)
327 goto out;
328
329 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
330 data->arg.create.fh = NFS_FH(dir);
331 data->arg.create.name = dentry->d_name.name;
332 data->arg.create.len = dentry->d_name.len;
333 data->arg.create.sattr = sattr;
334
335 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
336 if (flags & O_EXCL) {
337 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
338 data->arg.create.verifier[0] = jiffies;
339 data->arg.create.verifier[1] = current->pid;
340 }
341
342 sattr->ia_mode &= ~current_umask();
343
344 for (;;) {
345 status = nfs3_do_create(dir, dentry, data);
346
347 if (status != -ENOTSUPP)
348 break;
349
350
351 switch (data->arg.create.createmode) {
352 case NFS3_CREATE_EXCLUSIVE:
353 data->arg.create.createmode = NFS3_CREATE_GUARDED;
354 break;
355
356 case NFS3_CREATE_GUARDED:
357 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
358 break;
359
360 case NFS3_CREATE_UNCHECKED:
361 goto out;
362 }
363 nfs_fattr_init(data->res.dir_attr);
364 nfs_fattr_init(data->res.fattr);
365 }
366
367 if (status != 0)
368 goto out;
369
370
371
372 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
373 dprintk("NFS call setattr (post-create)\n");
374
375 if (!(sattr->ia_valid & ATTR_ATIME_SET))
376 sattr->ia_valid |= ATTR_ATIME;
377 if (!(sattr->ia_valid & ATTR_MTIME_SET))
378 sattr->ia_valid |= ATTR_MTIME;
379
380
381
382
383 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
384 nfs_post_op_update_inode(dentry->d_inode, data->res.fattr);
385 dprintk("NFS reply setattr (post-create): %d\n", status);
386 if (status != 0)
387 goto out;
388 }
389 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
390out:
391 nfs3_free_createdata(data);
392 dprintk("NFS reply create: %d\n", status);
393 return status;
394}
395
396static int
397nfs3_proc_remove(struct inode *dir, struct qstr *name)
398{
399 struct nfs_removeargs arg = {
400 .fh = NFS_FH(dir),
401 .name.len = name->len,
402 .name.name = name->name,
403 };
404 struct nfs_removeres res;
405 struct rpc_message msg = {
406 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
407 .rpc_argp = &arg,
408 .rpc_resp = &res,
409 };
410 int status = -ENOMEM;
411
412 dprintk("NFS call remove %s\n", name->name);
413 res.dir_attr = nfs_alloc_fattr();
414 if (res.dir_attr == NULL)
415 goto out;
416
417 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
418 nfs_post_op_update_inode(dir, res.dir_attr);
419 nfs_free_fattr(res.dir_attr);
420out:
421 dprintk("NFS reply remove: %d\n", status);
422 return status;
423}
424
425static void
426nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
427{
428 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
429}
430
431static int
432nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
433{
434 struct nfs_removeres *res;
435 if (nfs3_async_handle_jukebox(task, dir))
436 return 0;
437 res = task->tk_msg.rpc_resp;
438 nfs_post_op_update_inode(dir, res->dir_attr);
439 return 1;
440}
441
442static void
443nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
444{
445 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
446}
447
448static int
449nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
450 struct inode *new_dir)
451{
452 struct nfs_renameres *res;
453
454 if (nfs3_async_handle_jukebox(task, old_dir))
455 return 0;
456 res = task->tk_msg.rpc_resp;
457
458 nfs_post_op_update_inode(old_dir, res->old_fattr);
459 nfs_post_op_update_inode(new_dir, res->new_fattr);
460 return 1;
461}
462
463static int
464nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
465 struct inode *new_dir, struct qstr *new_name)
466{
467 struct nfs_renameargs arg = {
468 .old_dir = NFS_FH(old_dir),
469 .old_name = old_name,
470 .new_dir = NFS_FH(new_dir),
471 .new_name = new_name,
472 };
473 struct nfs_renameres res;
474 struct rpc_message msg = {
475 .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME],
476 .rpc_argp = &arg,
477 .rpc_resp = &res,
478 };
479 int status = -ENOMEM;
480
481 dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
482
483 res.old_fattr = nfs_alloc_fattr();
484 res.new_fattr = nfs_alloc_fattr();
485 if (res.old_fattr == NULL || res.new_fattr == NULL)
486 goto out;
487
488 status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
489 nfs_post_op_update_inode(old_dir, res.old_fattr);
490 nfs_post_op_update_inode(new_dir, res.new_fattr);
491out:
492 nfs_free_fattr(res.old_fattr);
493 nfs_free_fattr(res.new_fattr);
494 dprintk("NFS reply rename: %d\n", status);
495 return status;
496}
497
498static int
499nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
500{
501 struct nfs3_linkargs arg = {
502 .fromfh = NFS_FH(inode),
503 .tofh = NFS_FH(dir),
504 .toname = name->name,
505 .tolen = name->len
506 };
507 struct nfs3_linkres res;
508 struct rpc_message msg = {
509 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
510 .rpc_argp = &arg,
511 .rpc_resp = &res,
512 };
513 int status = -ENOMEM;
514
515 dprintk("NFS call link %s\n", name->name);
516 res.fattr = nfs_alloc_fattr();
517 res.dir_attr = nfs_alloc_fattr();
518 if (res.fattr == NULL || res.dir_attr == NULL)
519 goto out;
520
521 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
522 nfs_post_op_update_inode(dir, res.dir_attr);
523 nfs_post_op_update_inode(inode, res.fattr);
524out:
525 nfs_free_fattr(res.dir_attr);
526 nfs_free_fattr(res.fattr);
527 dprintk("NFS reply link: %d\n", status);
528 return status;
529}
530
531static int
532nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
533 unsigned int len, struct iattr *sattr)
534{
535 struct nfs3_createdata *data;
536 int status = -ENOMEM;
537
538 if (len > NFS3_MAXPATHLEN)
539 return -ENAMETOOLONG;
540
541 dprintk("NFS call symlink %s\n", dentry->d_name.name);
542
543 data = nfs3_alloc_createdata();
544 if (data == NULL)
545 goto out;
546 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
547 data->arg.symlink.fromfh = NFS_FH(dir);
548 data->arg.symlink.fromname = dentry->d_name.name;
549 data->arg.symlink.fromlen = dentry->d_name.len;
550 data->arg.symlink.pages = &page;
551 data->arg.symlink.pathlen = len;
552 data->arg.symlink.sattr = sattr;
553
554 status = nfs3_do_create(dir, dentry, data);
555
556 nfs3_free_createdata(data);
557out:
558 dprintk("NFS reply symlink: %d\n", status);
559 return status;
560}
561
562static int
563nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
564{
565 struct nfs3_createdata *data;
566 umode_t mode = sattr->ia_mode;
567 int status = -ENOMEM;
568
569 dprintk("NFS call mkdir %s\n", dentry->d_name.name);
570
571 sattr->ia_mode &= ~current_umask();
572
573 data = nfs3_alloc_createdata();
574 if (data == NULL)
575 goto out;
576
577 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
578 data->arg.mkdir.fh = NFS_FH(dir);
579 data->arg.mkdir.name = dentry->d_name.name;
580 data->arg.mkdir.len = dentry->d_name.len;
581 data->arg.mkdir.sattr = sattr;
582
583 status = nfs3_do_create(dir, dentry, data);
584 if (status != 0)
585 goto out;
586
587 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
588out:
589 nfs3_free_createdata(data);
590 dprintk("NFS reply mkdir: %d\n", status);
591 return status;
592}
593
594static int
595nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
596{
597 struct nfs_fattr *dir_attr;
598 struct nfs3_diropargs arg = {
599 .fh = NFS_FH(dir),
600 .name = name->name,
601 .len = name->len
602 };
603 struct rpc_message msg = {
604 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
605 .rpc_argp = &arg,
606 };
607 int status = -ENOMEM;
608
609 dprintk("NFS call rmdir %s\n", name->name);
610 dir_attr = nfs_alloc_fattr();
611 if (dir_attr == NULL)
612 goto out;
613
614 msg.rpc_resp = dir_attr;
615 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
616 nfs_post_op_update_inode(dir, dir_attr);
617 nfs_free_fattr(dir_attr);
618out:
619 dprintk("NFS reply rmdir: %d\n", status);
620 return status;
621}
622
623
624
625
626
627
628
629
630
631
632static int
633nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
634 u64 cookie, struct page **pages, unsigned int count, int plus)
635{
636 struct inode *dir = dentry->d_inode;
637 __be32 *verf = NFS_COOKIEVERF(dir);
638 struct nfs3_readdirargs arg = {
639 .fh = NFS_FH(dir),
640 .cookie = cookie,
641 .verf = {verf[0], verf[1]},
642 .plus = plus,
643 .count = count,
644 .pages = pages
645 };
646 struct nfs3_readdirres res = {
647 .verf = verf,
648 .plus = plus
649 };
650 struct rpc_message msg = {
651 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
652 .rpc_argp = &arg,
653 .rpc_resp = &res,
654 .rpc_cred = cred
655 };
656 int status = -ENOMEM;
657
658 if (plus)
659 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
660
661 dprintk("NFS call readdir%s %d\n",
662 plus? "plus" : "", (unsigned int) cookie);
663
664 res.dir_attr = nfs_alloc_fattr();
665 if (res.dir_attr == NULL)
666 goto out;
667
668 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
669
670 nfs_invalidate_atime(dir);
671 nfs_refresh_inode(dir, res.dir_attr);
672
673 nfs_free_fattr(res.dir_attr);
674out:
675 dprintk("NFS reply readdir%s: %d\n",
676 plus? "plus" : "", status);
677 return status;
678}
679
680static int
681nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
682 dev_t rdev)
683{
684 struct nfs3_createdata *data;
685 umode_t mode = sattr->ia_mode;
686 int status = -ENOMEM;
687
688 dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name,
689 MAJOR(rdev), MINOR(rdev));
690
691 sattr->ia_mode &= ~current_umask();
692
693 data = nfs3_alloc_createdata();
694 if (data == NULL)
695 goto out;
696
697 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
698 data->arg.mknod.fh = NFS_FH(dir);
699 data->arg.mknod.name = dentry->d_name.name;
700 data->arg.mknod.len = dentry->d_name.len;
701 data->arg.mknod.sattr = sattr;
702 data->arg.mknod.rdev = rdev;
703
704 switch (sattr->ia_mode & S_IFMT) {
705 case S_IFBLK:
706 data->arg.mknod.type = NF3BLK;
707 break;
708 case S_IFCHR:
709 data->arg.mknod.type = NF3CHR;
710 break;
711 case S_IFIFO:
712 data->arg.mknod.type = NF3FIFO;
713 break;
714 case S_IFSOCK:
715 data->arg.mknod.type = NF3SOCK;
716 break;
717 default:
718 status = -EINVAL;
719 goto out;
720 }
721
722 status = nfs3_do_create(dir, dentry, data);
723 if (status != 0)
724 goto out;
725 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
726out:
727 nfs3_free_createdata(data);
728 dprintk("NFS reply mknod: %d\n", status);
729 return status;
730}
731
732static int
733nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
734 struct nfs_fsstat *stat)
735{
736 struct rpc_message msg = {
737 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
738 .rpc_argp = fhandle,
739 .rpc_resp = stat,
740 };
741 int status;
742
743 dprintk("NFS call fsstat\n");
744 nfs_fattr_init(stat->fattr);
745 status = rpc_call_sync(server->client, &msg, 0);
746 dprintk("NFS reply fsstat: %d\n", status);
747 return status;
748}
749
750static int
751do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
752 struct nfs_fsinfo *info)
753{
754 struct rpc_message msg = {
755 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
756 .rpc_argp = fhandle,
757 .rpc_resp = info,
758 };
759 int status;
760
761 dprintk("NFS call fsinfo\n");
762 nfs_fattr_init(info->fattr);
763 status = rpc_call_sync(client, &msg, 0);
764 dprintk("NFS reply fsinfo: %d\n", status);
765 return status;
766}
767
768
769
770
771
772static int
773nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
774 struct nfs_fsinfo *info)
775{
776 int status;
777
778 status = do_proc_fsinfo(server->client, fhandle, info);
779 if (status && server->nfs_client->cl_rpcclient != server->client)
780 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
781 return status;
782}
783
784static int
785nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
786 struct nfs_pathconf *info)
787{
788 struct rpc_message msg = {
789 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
790 .rpc_argp = fhandle,
791 .rpc_resp = info,
792 };
793 int status;
794
795 dprintk("NFS call pathconf\n");
796 nfs_fattr_init(info->fattr);
797 status = rpc_call_sync(server->client, &msg, 0);
798 dprintk("NFS reply pathconf: %d\n", status);
799 return status;
800}
801
802static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data)
803{
804 if (nfs3_async_handle_jukebox(task, data->inode))
805 return -EAGAIN;
806
807 nfs_invalidate_atime(data->inode);
808 nfs_refresh_inode(data->inode, &data->fattr);
809 return 0;
810}
811
812static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg)
813{
814 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
815}
816
817static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
818{
819 if (nfs3_async_handle_jukebox(task, data->inode))
820 return -EAGAIN;
821 if (task->tk_status >= 0)
822 nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
823 return 0;
824}
825
826static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
827{
828 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
829}
830
831static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)
832{
833 if (nfs3_async_handle_jukebox(task, data->inode))
834 return -EAGAIN;
835 nfs_refresh_inode(data->inode, data->res.fattr);
836 return 0;
837}
838
839static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
840{
841 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
842}
843
844static int
845nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
846{
847 struct inode *inode = filp->f_path.dentry->d_inode;
848
849 return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
850}
851
852const struct nfs_rpc_ops nfs_v3_clientops = {
853 .version = 3,
854 .dentry_ops = &nfs_dentry_operations,
855 .dir_inode_ops = &nfs3_dir_inode_operations,
856 .file_inode_ops = &nfs3_file_inode_operations,
857 .file_ops = &nfs_file_operations,
858 .getroot = nfs3_proc_get_root,
859 .getattr = nfs3_proc_getattr,
860 .setattr = nfs3_proc_setattr,
861 .lookup = nfs3_proc_lookup,
862 .access = nfs3_proc_access,
863 .readlink = nfs3_proc_readlink,
864 .create = nfs3_proc_create,
865 .remove = nfs3_proc_remove,
866 .unlink_setup = nfs3_proc_unlink_setup,
867 .unlink_done = nfs3_proc_unlink_done,
868 .rename = nfs3_proc_rename,
869 .rename_setup = nfs3_proc_rename_setup,
870 .rename_done = nfs3_proc_rename_done,
871 .link = nfs3_proc_link,
872 .symlink = nfs3_proc_symlink,
873 .mkdir = nfs3_proc_mkdir,
874 .rmdir = nfs3_proc_rmdir,
875 .readdir = nfs3_proc_readdir,
876 .mknod = nfs3_proc_mknod,
877 .statfs = nfs3_proc_statfs,
878 .fsinfo = nfs3_proc_fsinfo,
879 .pathconf = nfs3_proc_pathconf,
880 .decode_dirent = nfs3_decode_dirent,
881 .read_setup = nfs3_proc_read_setup,
882 .read_done = nfs3_read_done,
883 .write_setup = nfs3_proc_write_setup,
884 .write_done = nfs3_write_done,
885 .commit_setup = nfs3_proc_commit_setup,
886 .commit_done = nfs3_commit_done,
887 .lock = nfs3_proc_lock,
888 .clear_acl_cache = nfs3_forget_cached_acls,
889 .close_context = nfs_close_context,
890 .init_client = nfs_init_client,
891};
892
