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Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/nfs/nfs3proc.c | |
3 | * | |
4 | * Client-side NFSv3 procedures stubs. | |
5 | * | |
6 | * Copyright (C) 1997, Olaf Kirch | |
7 | */ | |
8 | ||
9 | #include <linux/mm.h> | |
10 | #include <linux/utsname.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/string.h> | |
13 | #include <linux/sunrpc/clnt.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/smp_lock.h> | |
b7fa0554 | 20 | #include <linux/nfs_mount.h> |
1da177e4 | 21 | |
006ea73e | 22 | #include "iostat.h" |
f7b422b1 | 23 | #include "internal.h" |
006ea73e | 24 | |
1da177e4 LT |
25 | #define NFSDBG_FACILITY NFSDBG_PROC |
26 | ||
1da177e4 LT |
27 | /* A wrapper to handle the EJUKEBOX error message */ |
28 | static int | |
29 | nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) | |
30 | { | |
31 | sigset_t oldset; | |
32 | int res; | |
33 | rpc_clnt_sigmask(clnt, &oldset); | |
34 | do { | |
35 | res = rpc_call_sync(clnt, msg, flags); | |
36 | if (res != -EJUKEBOX) | |
37 | break; | |
041e0e3b | 38 | schedule_timeout_interruptible(NFS_JUKEBOX_RETRY_TIME); |
1da177e4 LT |
39 | res = -ERESTARTSYS; |
40 | } while (!signalled()); | |
41 | rpc_clnt_sigunmask(clnt, &oldset); | |
42 | return res; | |
43 | } | |
44 | ||
dead28da | 45 | #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) |
1da177e4 LT |
46 | |
47 | static int | |
006ea73e | 48 | nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) |
1da177e4 LT |
49 | { |
50 | if (task->tk_status != -EJUKEBOX) | |
51 | return 0; | |
006ea73e | 52 | nfs_inc_stats(inode, NFSIOS_DELAY); |
1da177e4 LT |
53 | task->tk_status = 0; |
54 | rpc_restart_call(task); | |
55 | rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); | |
56 | return 1; | |
57 | } | |
58 | ||
1da177e4 | 59 | static int |
03c21733 BF |
60 | do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, |
61 | struct nfs_fsinfo *info) | |
1da177e4 | 62 | { |
dead28da CL |
63 | struct rpc_message msg = { |
64 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
65 | .rpc_argp = fhandle, | |
66 | .rpc_resp = info, | |
67 | }; | |
1da177e4 LT |
68 | int status; |
69 | ||
70 | dprintk("%s: call fsinfo\n", __FUNCTION__); | |
0e574af1 | 71 | nfs_fattr_init(info->fattr); |
dead28da | 72 | status = rpc_call_sync(client, &msg, 0); |
1da177e4 LT |
73 | dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); |
74 | if (!(info->fattr->valid & NFS_ATTR_FATTR)) { | |
dead28da CL |
75 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; |
76 | msg.rpc_resp = info->fattr; | |
77 | status = rpc_call_sync(client, &msg, 0); | |
1da177e4 LT |
78 | dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); |
79 | } | |
80 | return status; | |
81 | } | |
82 | ||
03c21733 BF |
83 | /* |
84 | * Bare-bones access to getattr: this is for nfs_read_super. | |
85 | */ | |
86 | static int | |
87 | nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, | |
88 | struct nfs_fsinfo *info) | |
89 | { | |
90 | int status; | |
91 | ||
92 | status = do_proc_get_root(server->client, fhandle, info); | |
5006a76c DH |
93 | if (status && server->nfs_client->cl_rpcclient != server->client) |
94 | status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); | |
03c21733 BF |
95 | return status; |
96 | } | |
97 | ||
1da177e4 LT |
98 | /* |
99 | * One function for each procedure in the NFS protocol. | |
100 | */ | |
101 | static int | |
102 | nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, | |
103 | struct nfs_fattr *fattr) | |
104 | { | |
dead28da CL |
105 | struct rpc_message msg = { |
106 | .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], | |
107 | .rpc_argp = fhandle, | |
108 | .rpc_resp = fattr, | |
109 | }; | |
1da177e4 LT |
110 | int status; |
111 | ||
112 | dprintk("NFS call getattr\n"); | |
0e574af1 | 113 | nfs_fattr_init(fattr); |
dead28da | 114 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
115 | dprintk("NFS reply getattr: %d\n", status); |
116 | return status; | |
117 | } | |
118 | ||
119 | static int | |
120 | nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, | |
121 | struct iattr *sattr) | |
122 | { | |
123 | struct inode *inode = dentry->d_inode; | |
124 | struct nfs3_sattrargs arg = { | |
125 | .fh = NFS_FH(inode), | |
126 | .sattr = sattr, | |
127 | }; | |
dead28da CL |
128 | struct rpc_message msg = { |
129 | .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], | |
130 | .rpc_argp = &arg, | |
131 | .rpc_resp = fattr, | |
132 | }; | |
1da177e4 LT |
133 | int status; |
134 | ||
135 | dprintk("NFS call setattr\n"); | |
0e574af1 | 136 | nfs_fattr_init(fattr); |
dead28da | 137 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
65e4308d TM |
138 | if (status == 0) |
139 | nfs_setattr_update_inode(inode, sattr); | |
1da177e4 LT |
140 | dprintk("NFS reply setattr: %d\n", status); |
141 | return status; | |
142 | } | |
143 | ||
144 | static int | |
145 | nfs3_proc_lookup(struct inode *dir, struct qstr *name, | |
146 | struct nfs_fh *fhandle, struct nfs_fattr *fattr) | |
147 | { | |
148 | struct nfs_fattr dir_attr; | |
149 | struct nfs3_diropargs arg = { | |
150 | .fh = NFS_FH(dir), | |
151 | .name = name->name, | |
152 | .len = name->len | |
153 | }; | |
154 | struct nfs3_diropres res = { | |
155 | .dir_attr = &dir_attr, | |
156 | .fh = fhandle, | |
157 | .fattr = fattr | |
158 | }; | |
dead28da CL |
159 | struct rpc_message msg = { |
160 | .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], | |
161 | .rpc_argp = &arg, | |
162 | .rpc_resp = &res, | |
163 | }; | |
1da177e4 LT |
164 | int status; |
165 | ||
166 | dprintk("NFS call lookup %s\n", name->name); | |
0e574af1 TM |
167 | nfs_fattr_init(&dir_attr); |
168 | nfs_fattr_init(fattr); | |
dead28da CL |
169 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
170 | if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { | |
171 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; | |
172 | msg.rpc_argp = fhandle; | |
173 | msg.rpc_resp = fattr; | |
174 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); | |
175 | } | |
1da177e4 LT |
176 | dprintk("NFS reply lookup: %d\n", status); |
177 | if (status >= 0) | |
178 | status = nfs_refresh_inode(dir, &dir_attr); | |
179 | return status; | |
180 | } | |
181 | ||
182 | static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) | |
183 | { | |
184 | struct nfs_fattr fattr; | |
185 | struct nfs3_accessargs arg = { | |
186 | .fh = NFS_FH(inode), | |
187 | }; | |
188 | struct nfs3_accessres res = { | |
189 | .fattr = &fattr, | |
190 | }; | |
191 | struct rpc_message msg = { | |
192 | .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], | |
193 | .rpc_argp = &arg, | |
194 | .rpc_resp = &res, | |
dead28da | 195 | .rpc_cred = entry->cred, |
1da177e4 LT |
196 | }; |
197 | int mode = entry->mask; | |
198 | int status; | |
199 | ||
200 | dprintk("NFS call access\n"); | |
1da177e4 LT |
201 | |
202 | if (mode & MAY_READ) | |
203 | arg.access |= NFS3_ACCESS_READ; | |
204 | if (S_ISDIR(inode->i_mode)) { | |
205 | if (mode & MAY_WRITE) | |
206 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; | |
207 | if (mode & MAY_EXEC) | |
208 | arg.access |= NFS3_ACCESS_LOOKUP; | |
209 | } else { | |
210 | if (mode & MAY_WRITE) | |
211 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; | |
212 | if (mode & MAY_EXEC) | |
213 | arg.access |= NFS3_ACCESS_EXECUTE; | |
214 | } | |
0e574af1 | 215 | nfs_fattr_init(&fattr); |
1da177e4 LT |
216 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
217 | nfs_refresh_inode(inode, &fattr); | |
218 | if (status == 0) { | |
219 | entry->mask = 0; | |
220 | if (res.access & NFS3_ACCESS_READ) | |
221 | entry->mask |= MAY_READ; | |
222 | if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) | |
223 | entry->mask |= MAY_WRITE; | |
224 | if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) | |
225 | entry->mask |= MAY_EXEC; | |
226 | } | |
227 | dprintk("NFS reply access: %d\n", status); | |
228 | return status; | |
229 | } | |
230 | ||
231 | static int nfs3_proc_readlink(struct inode *inode, struct page *page, | |
232 | unsigned int pgbase, unsigned int pglen) | |
233 | { | |
234 | struct nfs_fattr fattr; | |
235 | struct nfs3_readlinkargs args = { | |
236 | .fh = NFS_FH(inode), | |
237 | .pgbase = pgbase, | |
238 | .pglen = pglen, | |
239 | .pages = &page | |
240 | }; | |
dead28da CL |
241 | struct rpc_message msg = { |
242 | .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], | |
243 | .rpc_argp = &args, | |
244 | .rpc_resp = &fattr, | |
245 | }; | |
1da177e4 LT |
246 | int status; |
247 | ||
248 | dprintk("NFS call readlink\n"); | |
0e574af1 | 249 | nfs_fattr_init(&fattr); |
dead28da | 250 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
1da177e4 LT |
251 | nfs_refresh_inode(inode, &fattr); |
252 | dprintk("NFS reply readlink: %d\n", status); | |
253 | return status; | |
254 | } | |
255 | ||
256 | static int nfs3_proc_read(struct nfs_read_data *rdata) | |
257 | { | |
258 | int flags = rdata->flags; | |
259 | struct inode * inode = rdata->inode; | |
260 | struct nfs_fattr * fattr = rdata->res.fattr; | |
261 | struct rpc_message msg = { | |
262 | .rpc_proc = &nfs3_procedures[NFS3PROC_READ], | |
263 | .rpc_argp = &rdata->args, | |
264 | .rpc_resp = &rdata->res, | |
265 | .rpc_cred = rdata->cred, | |
266 | }; | |
267 | int status; | |
268 | ||
269 | dprintk("NFS call read %d @ %Ld\n", rdata->args.count, | |
270 | (long long) rdata->args.offset); | |
0e574af1 | 271 | nfs_fattr_init(fattr); |
1da177e4 LT |
272 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags); |
273 | if (status >= 0) | |
274 | nfs_refresh_inode(inode, fattr); | |
275 | dprintk("NFS reply read: %d\n", status); | |
276 | return status; | |
277 | } | |
278 | ||
279 | static int nfs3_proc_write(struct nfs_write_data *wdata) | |
280 | { | |
281 | int rpcflags = wdata->flags; | |
282 | struct inode * inode = wdata->inode; | |
283 | struct nfs_fattr * fattr = wdata->res.fattr; | |
284 | struct rpc_message msg = { | |
285 | .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], | |
286 | .rpc_argp = &wdata->args, | |
287 | .rpc_resp = &wdata->res, | |
288 | .rpc_cred = wdata->cred, | |
289 | }; | |
290 | int status; | |
291 | ||
292 | dprintk("NFS call write %d @ %Ld\n", wdata->args.count, | |
293 | (long long) wdata->args.offset); | |
0e574af1 | 294 | nfs_fattr_init(fattr); |
1da177e4 LT |
295 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags); |
296 | if (status >= 0) | |
decf491f | 297 | nfs_post_op_update_inode(inode, fattr); |
1da177e4 LT |
298 | dprintk("NFS reply write: %d\n", status); |
299 | return status < 0? status : wdata->res.count; | |
300 | } | |
301 | ||
302 | static int nfs3_proc_commit(struct nfs_write_data *cdata) | |
303 | { | |
304 | struct inode * inode = cdata->inode; | |
305 | struct nfs_fattr * fattr = cdata->res.fattr; | |
306 | struct rpc_message msg = { | |
307 | .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], | |
308 | .rpc_argp = &cdata->args, | |
309 | .rpc_resp = &cdata->res, | |
310 | .rpc_cred = cdata->cred, | |
311 | }; | |
312 | int status; | |
313 | ||
314 | dprintk("NFS call commit %d @ %Ld\n", cdata->args.count, | |
315 | (long long) cdata->args.offset); | |
0e574af1 | 316 | nfs_fattr_init(fattr); |
1da177e4 LT |
317 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
318 | if (status >= 0) | |
decf491f | 319 | nfs_post_op_update_inode(inode, fattr); |
1da177e4 LT |
320 | dprintk("NFS reply commit: %d\n", status); |
321 | return status; | |
322 | } | |
323 | ||
324 | /* | |
325 | * Create a regular file. | |
326 | * For now, we don't implement O_EXCL. | |
327 | */ | |
328 | static int | |
329 | nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
02a913a7 | 330 | int flags, struct nameidata *nd) |
1da177e4 LT |
331 | { |
332 | struct nfs_fh fhandle; | |
333 | struct nfs_fattr fattr; | |
334 | struct nfs_fattr dir_attr; | |
335 | struct nfs3_createargs arg = { | |
336 | .fh = NFS_FH(dir), | |
337 | .name = dentry->d_name.name, | |
338 | .len = dentry->d_name.len, | |
339 | .sattr = sattr, | |
340 | }; | |
341 | struct nfs3_diropres res = { | |
342 | .dir_attr = &dir_attr, | |
343 | .fh = &fhandle, | |
344 | .fattr = &fattr | |
345 | }; | |
dead28da CL |
346 | struct rpc_message msg = { |
347 | .rpc_proc = &nfs3_procedures[NFS3PROC_CREATE], | |
348 | .rpc_argp = &arg, | |
349 | .rpc_resp = &res, | |
350 | }; | |
055ffbea AG |
351 | mode_t mode = sattr->ia_mode; |
352 | int status; | |
1da177e4 LT |
353 | |
354 | dprintk("NFS call create %s\n", dentry->d_name.name); | |
355 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
356 | if (flags & O_EXCL) { | |
357 | arg.createmode = NFS3_CREATE_EXCLUSIVE; | |
358 | arg.verifier[0] = jiffies; | |
359 | arg.verifier[1] = current->pid; | |
360 | } | |
361 | ||
055ffbea AG |
362 | sattr->ia_mode &= ~current->fs->umask; |
363 | ||
1da177e4 | 364 | again: |
0e574af1 TM |
365 | nfs_fattr_init(&dir_attr); |
366 | nfs_fattr_init(&fattr); | |
dead28da CL |
367 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
368 | nfs_refresh_inode(dir, &dir_attr); | |
1da177e4 LT |
369 | |
370 | /* If the server doesn't support the exclusive creation semantics, | |
371 | * try again with simple 'guarded' mode. */ | |
372 | if (status == NFSERR_NOTSUPP) { | |
373 | switch (arg.createmode) { | |
374 | case NFS3_CREATE_EXCLUSIVE: | |
375 | arg.createmode = NFS3_CREATE_GUARDED; | |
376 | break; | |
377 | ||
378 | case NFS3_CREATE_GUARDED: | |
379 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
380 | break; | |
381 | ||
382 | case NFS3_CREATE_UNCHECKED: | |
383 | goto out; | |
384 | } | |
385 | goto again; | |
386 | } | |
387 | ||
388 | if (status == 0) | |
389 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
390 | if (status != 0) | |
391 | goto out; | |
392 | ||
393 | /* When we created the file with exclusive semantics, make | |
394 | * sure we set the attributes afterwards. */ | |
395 | if (arg.createmode == NFS3_CREATE_EXCLUSIVE) { | |
396 | dprintk("NFS call setattr (post-create)\n"); | |
397 | ||
398 | if (!(sattr->ia_valid & ATTR_ATIME_SET)) | |
399 | sattr->ia_valid |= ATTR_ATIME; | |
400 | if (!(sattr->ia_valid & ATTR_MTIME_SET)) | |
401 | sattr->ia_valid |= ATTR_MTIME; | |
402 | ||
403 | /* Note: we could use a guarded setattr here, but I'm | |
404 | * not sure this buys us anything (and I'd have | |
405 | * to revamp the NFSv3 XDR code) */ | |
406 | status = nfs3_proc_setattr(dentry, &fattr, sattr); | |
65e4308d TM |
407 | if (status == 0) |
408 | nfs_setattr_update_inode(dentry->d_inode, sattr); | |
1da177e4 LT |
409 | nfs_refresh_inode(dentry->d_inode, &fattr); |
410 | dprintk("NFS reply setattr (post-create): %d\n", status); | |
411 | } | |
055ffbea AG |
412 | if (status != 0) |
413 | goto out; | |
414 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
1da177e4 LT |
415 | out: |
416 | dprintk("NFS reply create: %d\n", status); | |
417 | return status; | |
418 | } | |
419 | ||
420 | static int | |
421 | nfs3_proc_remove(struct inode *dir, struct qstr *name) | |
422 | { | |
423 | struct nfs_fattr dir_attr; | |
424 | struct nfs3_diropargs arg = { | |
425 | .fh = NFS_FH(dir), | |
426 | .name = name->name, | |
427 | .len = name->len | |
428 | }; | |
429 | struct rpc_message msg = { | |
430 | .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], | |
431 | .rpc_argp = &arg, | |
432 | .rpc_resp = &dir_attr, | |
433 | }; | |
434 | int status; | |
435 | ||
436 | dprintk("NFS call remove %s\n", name->name); | |
0e574af1 | 437 | nfs_fattr_init(&dir_attr); |
1da177e4 | 438 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 439 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
440 | dprintk("NFS reply remove: %d\n", status); |
441 | return status; | |
442 | } | |
443 | ||
444 | static int | |
445 | nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name) | |
446 | { | |
447 | struct unlinkxdr { | |
448 | struct nfs3_diropargs arg; | |
449 | struct nfs_fattr res; | |
450 | } *ptr; | |
451 | ||
452 | ptr = (struct unlinkxdr *)kmalloc(sizeof(*ptr), GFP_KERNEL); | |
453 | if (!ptr) | |
454 | return -ENOMEM; | |
455 | ptr->arg.fh = NFS_FH(dir->d_inode); | |
456 | ptr->arg.name = name->name; | |
457 | ptr->arg.len = name->len; | |
0e574af1 | 458 | nfs_fattr_init(&ptr->res); |
1da177e4 LT |
459 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; |
460 | msg->rpc_argp = &ptr->arg; | |
461 | msg->rpc_resp = &ptr->res; | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int | |
466 | nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task) | |
467 | { | |
468 | struct rpc_message *msg = &task->tk_msg; | |
469 | struct nfs_fattr *dir_attr; | |
470 | ||
006ea73e | 471 | if (nfs3_async_handle_jukebox(task, dir->d_inode)) |
1da177e4 LT |
472 | return 1; |
473 | if (msg->rpc_argp) { | |
474 | dir_attr = (struct nfs_fattr*)msg->rpc_resp; | |
decf491f | 475 | nfs_post_op_update_inode(dir->d_inode, dir_attr); |
1da177e4 LT |
476 | kfree(msg->rpc_argp); |
477 | } | |
478 | return 0; | |
479 | } | |
480 | ||
481 | static int | |
482 | nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, | |
483 | struct inode *new_dir, struct qstr *new_name) | |
484 | { | |
485 | struct nfs_fattr old_dir_attr, new_dir_attr; | |
486 | struct nfs3_renameargs arg = { | |
487 | .fromfh = NFS_FH(old_dir), | |
488 | .fromname = old_name->name, | |
489 | .fromlen = old_name->len, | |
490 | .tofh = NFS_FH(new_dir), | |
491 | .toname = new_name->name, | |
492 | .tolen = new_name->len | |
493 | }; | |
494 | struct nfs3_renameres res = { | |
495 | .fromattr = &old_dir_attr, | |
496 | .toattr = &new_dir_attr | |
497 | }; | |
dead28da CL |
498 | struct rpc_message msg = { |
499 | .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], | |
500 | .rpc_argp = &arg, | |
501 | .rpc_resp = &res, | |
502 | }; | |
1da177e4 LT |
503 | int status; |
504 | ||
505 | dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); | |
0e574af1 TM |
506 | nfs_fattr_init(&old_dir_attr); |
507 | nfs_fattr_init(&new_dir_attr); | |
dead28da | 508 | status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); |
decf491f TM |
509 | nfs_post_op_update_inode(old_dir, &old_dir_attr); |
510 | nfs_post_op_update_inode(new_dir, &new_dir_attr); | |
1da177e4 LT |
511 | dprintk("NFS reply rename: %d\n", status); |
512 | return status; | |
513 | } | |
514 | ||
515 | static int | |
516 | nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) | |
517 | { | |
518 | struct nfs_fattr dir_attr, fattr; | |
519 | struct nfs3_linkargs arg = { | |
520 | .fromfh = NFS_FH(inode), | |
521 | .tofh = NFS_FH(dir), | |
522 | .toname = name->name, | |
523 | .tolen = name->len | |
524 | }; | |
525 | struct nfs3_linkres res = { | |
526 | .dir_attr = &dir_attr, | |
527 | .fattr = &fattr | |
528 | }; | |
dead28da CL |
529 | struct rpc_message msg = { |
530 | .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], | |
531 | .rpc_argp = &arg, | |
532 | .rpc_resp = &res, | |
533 | }; | |
1da177e4 LT |
534 | int status; |
535 | ||
536 | dprintk("NFS call link %s\n", name->name); | |
0e574af1 TM |
537 | nfs_fattr_init(&dir_attr); |
538 | nfs_fattr_init(&fattr); | |
dead28da | 539 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
decf491f TM |
540 | nfs_post_op_update_inode(dir, &dir_attr); |
541 | nfs_post_op_update_inode(inode, &fattr); | |
1da177e4 LT |
542 | dprintk("NFS reply link: %d\n", status); |
543 | return status; | |
544 | } | |
545 | ||
546 | static int | |
547 | nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path, | |
548 | struct iattr *sattr, struct nfs_fh *fhandle, | |
549 | struct nfs_fattr *fattr) | |
550 | { | |
551 | struct nfs_fattr dir_attr; | |
552 | struct nfs3_symlinkargs arg = { | |
553 | .fromfh = NFS_FH(dir), | |
554 | .fromname = name->name, | |
555 | .fromlen = name->len, | |
556 | .topath = path->name, | |
557 | .tolen = path->len, | |
558 | .sattr = sattr | |
559 | }; | |
560 | struct nfs3_diropres res = { | |
561 | .dir_attr = &dir_attr, | |
562 | .fh = fhandle, | |
563 | .fattr = fattr | |
564 | }; | |
dead28da CL |
565 | struct rpc_message msg = { |
566 | .rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK], | |
567 | .rpc_argp = &arg, | |
568 | .rpc_resp = &res, | |
569 | }; | |
1da177e4 LT |
570 | int status; |
571 | ||
572 | if (path->len > NFS3_MAXPATHLEN) | |
573 | return -ENAMETOOLONG; | |
574 | dprintk("NFS call symlink %s -> %s\n", name->name, path->name); | |
0e574af1 TM |
575 | nfs_fattr_init(&dir_attr); |
576 | nfs_fattr_init(fattr); | |
dead28da | 577 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 578 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
579 | dprintk("NFS reply symlink: %d\n", status); |
580 | return status; | |
581 | } | |
582 | ||
583 | static int | |
584 | nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) | |
585 | { | |
586 | struct nfs_fh fhandle; | |
587 | struct nfs_fattr fattr, dir_attr; | |
588 | struct nfs3_mkdirargs arg = { | |
589 | .fh = NFS_FH(dir), | |
590 | .name = dentry->d_name.name, | |
591 | .len = dentry->d_name.len, | |
592 | .sattr = sattr | |
593 | }; | |
594 | struct nfs3_diropres res = { | |
595 | .dir_attr = &dir_attr, | |
596 | .fh = &fhandle, | |
597 | .fattr = &fattr | |
598 | }; | |
dead28da CL |
599 | struct rpc_message msg = { |
600 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR], | |
601 | .rpc_argp = &arg, | |
602 | .rpc_resp = &res, | |
603 | }; | |
055ffbea AG |
604 | int mode = sattr->ia_mode; |
605 | int status; | |
1da177e4 LT |
606 | |
607 | dprintk("NFS call mkdir %s\n", dentry->d_name.name); | |
055ffbea AG |
608 | |
609 | sattr->ia_mode &= ~current->fs->umask; | |
610 | ||
0e574af1 TM |
611 | nfs_fattr_init(&dir_attr); |
612 | nfs_fattr_init(&fattr); | |
dead28da | 613 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 614 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
615 | if (status != 0) |
616 | goto out; | |
617 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
618 | if (status != 0) | |
619 | goto out; | |
620 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
621 | out: | |
1da177e4 LT |
622 | dprintk("NFS reply mkdir: %d\n", status); |
623 | return status; | |
624 | } | |
625 | ||
626 | static int | |
627 | nfs3_proc_rmdir(struct inode *dir, struct qstr *name) | |
628 | { | |
629 | struct nfs_fattr dir_attr; | |
630 | struct nfs3_diropargs arg = { | |
631 | .fh = NFS_FH(dir), | |
632 | .name = name->name, | |
633 | .len = name->len | |
634 | }; | |
dead28da CL |
635 | struct rpc_message msg = { |
636 | .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], | |
637 | .rpc_argp = &arg, | |
638 | .rpc_resp = &dir_attr, | |
639 | }; | |
1da177e4 LT |
640 | int status; |
641 | ||
642 | dprintk("NFS call rmdir %s\n", name->name); | |
0e574af1 | 643 | nfs_fattr_init(&dir_attr); |
dead28da | 644 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 645 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
646 | dprintk("NFS reply rmdir: %d\n", status); |
647 | return status; | |
648 | } | |
649 | ||
650 | /* | |
651 | * The READDIR implementation is somewhat hackish - we pass the user buffer | |
652 | * to the encode function, which installs it in the receive iovec. | |
653 | * The decode function itself doesn't perform any decoding, it just makes | |
654 | * sure the reply is syntactically correct. | |
655 | * | |
656 | * Also note that this implementation handles both plain readdir and | |
657 | * readdirplus. | |
658 | */ | |
659 | static int | |
660 | nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, | |
661 | u64 cookie, struct page *page, unsigned int count, int plus) | |
662 | { | |
663 | struct inode *dir = dentry->d_inode; | |
664 | struct nfs_fattr dir_attr; | |
665 | u32 *verf = NFS_COOKIEVERF(dir); | |
666 | struct nfs3_readdirargs arg = { | |
667 | .fh = NFS_FH(dir), | |
668 | .cookie = cookie, | |
669 | .verf = {verf[0], verf[1]}, | |
670 | .plus = plus, | |
671 | .count = count, | |
672 | .pages = &page | |
673 | }; | |
674 | struct nfs3_readdirres res = { | |
675 | .dir_attr = &dir_attr, | |
676 | .verf = verf, | |
677 | .plus = plus | |
678 | }; | |
679 | struct rpc_message msg = { | |
680 | .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], | |
681 | .rpc_argp = &arg, | |
682 | .rpc_resp = &res, | |
683 | .rpc_cred = cred | |
684 | }; | |
685 | int status; | |
686 | ||
687 | lock_kernel(); | |
688 | ||
689 | if (plus) | |
690 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; | |
691 | ||
692 | dprintk("NFS call readdir%s %d\n", | |
693 | plus? "plus" : "", (unsigned int) cookie); | |
694 | ||
0e574af1 | 695 | nfs_fattr_init(&dir_attr); |
1da177e4 LT |
696 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
697 | nfs_refresh_inode(dir, &dir_attr); | |
698 | dprintk("NFS reply readdir: %d\n", status); | |
699 | unlock_kernel(); | |
700 | return status; | |
701 | } | |
702 | ||
703 | static int | |
704 | nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
705 | dev_t rdev) | |
706 | { | |
707 | struct nfs_fh fh; | |
708 | struct nfs_fattr fattr, dir_attr; | |
709 | struct nfs3_mknodargs arg = { | |
710 | .fh = NFS_FH(dir), | |
711 | .name = dentry->d_name.name, | |
712 | .len = dentry->d_name.len, | |
713 | .sattr = sattr, | |
714 | .rdev = rdev | |
715 | }; | |
716 | struct nfs3_diropres res = { | |
717 | .dir_attr = &dir_attr, | |
718 | .fh = &fh, | |
719 | .fattr = &fattr | |
720 | }; | |
dead28da CL |
721 | struct rpc_message msg = { |
722 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD], | |
723 | .rpc_argp = &arg, | |
724 | .rpc_resp = &res, | |
725 | }; | |
055ffbea | 726 | mode_t mode = sattr->ia_mode; |
1da177e4 LT |
727 | int status; |
728 | ||
729 | switch (sattr->ia_mode & S_IFMT) { | |
730 | case S_IFBLK: arg.type = NF3BLK; break; | |
731 | case S_IFCHR: arg.type = NF3CHR; break; | |
732 | case S_IFIFO: arg.type = NF3FIFO; break; | |
733 | case S_IFSOCK: arg.type = NF3SOCK; break; | |
734 | default: return -EINVAL; | |
735 | } | |
736 | ||
737 | dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, | |
738 | MAJOR(rdev), MINOR(rdev)); | |
055ffbea AG |
739 | |
740 | sattr->ia_mode &= ~current->fs->umask; | |
741 | ||
0e574af1 TM |
742 | nfs_fattr_init(&dir_attr); |
743 | nfs_fattr_init(&fattr); | |
dead28da | 744 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 745 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
746 | if (status != 0) |
747 | goto out; | |
748 | status = nfs_instantiate(dentry, &fh, &fattr); | |
749 | if (status != 0) | |
750 | goto out; | |
751 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
752 | out: | |
1da177e4 LT |
753 | dprintk("NFS reply mknod: %d\n", status); |
754 | return status; | |
755 | } | |
756 | ||
757 | static int | |
758 | nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, | |
759 | struct nfs_fsstat *stat) | |
760 | { | |
dead28da CL |
761 | struct rpc_message msg = { |
762 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], | |
763 | .rpc_argp = fhandle, | |
764 | .rpc_resp = stat, | |
765 | }; | |
1da177e4 LT |
766 | int status; |
767 | ||
768 | dprintk("NFS call fsstat\n"); | |
0e574af1 | 769 | nfs_fattr_init(stat->fattr); |
dead28da | 770 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
771 | dprintk("NFS reply statfs: %d\n", status); |
772 | return status; | |
773 | } | |
774 | ||
775 | static int | |
776 | nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, | |
777 | struct nfs_fsinfo *info) | |
778 | { | |
dead28da CL |
779 | struct rpc_message msg = { |
780 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
781 | .rpc_argp = fhandle, | |
782 | .rpc_resp = info, | |
783 | }; | |
1da177e4 LT |
784 | int status; |
785 | ||
786 | dprintk("NFS call fsinfo\n"); | |
0e574af1 | 787 | nfs_fattr_init(info->fattr); |
5006a76c | 788 | status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0); |
1da177e4 LT |
789 | dprintk("NFS reply fsinfo: %d\n", status); |
790 | return status; | |
791 | } | |
792 | ||
793 | static int | |
794 | nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, | |
795 | struct nfs_pathconf *info) | |
796 | { | |
dead28da CL |
797 | struct rpc_message msg = { |
798 | .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], | |
799 | .rpc_argp = fhandle, | |
800 | .rpc_resp = info, | |
801 | }; | |
1da177e4 LT |
802 | int status; |
803 | ||
804 | dprintk("NFS call pathconf\n"); | |
0e574af1 | 805 | nfs_fattr_init(info->fattr); |
dead28da | 806 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
807 | dprintk("NFS reply pathconf: %d\n", status); |
808 | return status; | |
809 | } | |
810 | ||
ec06c096 | 811 | static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) |
1da177e4 | 812 | { |
006ea73e | 813 | if (nfs3_async_handle_jukebox(task, data->inode)) |
ec06c096 | 814 | return -EAGAIN; |
1da177e4 LT |
815 | /* Call back common NFS readpage processing */ |
816 | if (task->tk_status >= 0) | |
817 | nfs_refresh_inode(data->inode, &data->fattr); | |
ec06c096 | 818 | return 0; |
1da177e4 LT |
819 | } |
820 | ||
ec06c096 | 821 | static void nfs3_proc_read_setup(struct nfs_read_data *data) |
1da177e4 | 822 | { |
1da177e4 LT |
823 | struct rpc_message msg = { |
824 | .rpc_proc = &nfs3_procedures[NFS3PROC_READ], | |
825 | .rpc_argp = &data->args, | |
826 | .rpc_resp = &data->res, | |
827 | .rpc_cred = data->cred, | |
828 | }; | |
829 | ||
ec06c096 | 830 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
831 | } |
832 | ||
788e7a89 | 833 | static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 834 | { |
006ea73e | 835 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 836 | return -EAGAIN; |
1da177e4 | 837 | if (task->tk_status >= 0) |
decf491f | 838 | nfs_post_op_update_inode(data->inode, data->res.fattr); |
788e7a89 | 839 | return 0; |
1da177e4 LT |
840 | } |
841 | ||
788e7a89 | 842 | static void nfs3_proc_write_setup(struct nfs_write_data *data, int how) |
1da177e4 | 843 | { |
1da177e4 LT |
844 | struct rpc_message msg = { |
845 | .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], | |
846 | .rpc_argp = &data->args, | |
847 | .rpc_resp = &data->res, | |
848 | .rpc_cred = data->cred, | |
849 | }; | |
850 | ||
788e7a89 | 851 | data->args.stable = NFS_UNSTABLE; |
1da177e4 | 852 | if (how & FLUSH_STABLE) { |
788e7a89 TM |
853 | data->args.stable = NFS_FILE_SYNC; |
854 | if (NFS_I(data->inode)->ncommit) | |
855 | data->args.stable = NFS_DATA_SYNC; | |
856 | } | |
1da177e4 LT |
857 | |
858 | /* Finalize the task. */ | |
788e7a89 | 859 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
860 | } |
861 | ||
788e7a89 | 862 | static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 863 | { |
006ea73e | 864 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 865 | return -EAGAIN; |
1da177e4 | 866 | if (task->tk_status >= 0) |
decf491f | 867 | nfs_post_op_update_inode(data->inode, data->res.fattr); |
788e7a89 | 868 | return 0; |
1da177e4 LT |
869 | } |
870 | ||
788e7a89 | 871 | static void nfs3_proc_commit_setup(struct nfs_write_data *data, int how) |
1da177e4 | 872 | { |
1da177e4 LT |
873 | struct rpc_message msg = { |
874 | .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], | |
875 | .rpc_argp = &data->args, | |
876 | .rpc_resp = &data->res, | |
877 | .rpc_cred = data->cred, | |
878 | }; | |
879 | ||
788e7a89 | 880 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
881 | } |
882 | ||
883 | static int | |
884 | nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) | |
885 | { | |
886 | return nlmclnt_proc(filp->f_dentry->d_inode, cmd, fl); | |
887 | } | |
888 | ||
509de811 | 889 | const struct nfs_rpc_ops nfs_v3_clientops = { |
1da177e4 LT |
890 | .version = 3, /* protocol version */ |
891 | .dentry_ops = &nfs_dentry_operations, | |
b7fa0554 AG |
892 | .dir_inode_ops = &nfs3_dir_inode_operations, |
893 | .file_inode_ops = &nfs3_file_inode_operations, | |
1da177e4 LT |
894 | .getroot = nfs3_proc_get_root, |
895 | .getattr = nfs3_proc_getattr, | |
896 | .setattr = nfs3_proc_setattr, | |
897 | .lookup = nfs3_proc_lookup, | |
898 | .access = nfs3_proc_access, | |
899 | .readlink = nfs3_proc_readlink, | |
900 | .read = nfs3_proc_read, | |
901 | .write = nfs3_proc_write, | |
902 | .commit = nfs3_proc_commit, | |
903 | .create = nfs3_proc_create, | |
904 | .remove = nfs3_proc_remove, | |
905 | .unlink_setup = nfs3_proc_unlink_setup, | |
906 | .unlink_done = nfs3_proc_unlink_done, | |
907 | .rename = nfs3_proc_rename, | |
908 | .link = nfs3_proc_link, | |
909 | .symlink = nfs3_proc_symlink, | |
910 | .mkdir = nfs3_proc_mkdir, | |
911 | .rmdir = nfs3_proc_rmdir, | |
912 | .readdir = nfs3_proc_readdir, | |
913 | .mknod = nfs3_proc_mknod, | |
914 | .statfs = nfs3_proc_statfs, | |
915 | .fsinfo = nfs3_proc_fsinfo, | |
916 | .pathconf = nfs3_proc_pathconf, | |
917 | .decode_dirent = nfs3_decode_dirent, | |
918 | .read_setup = nfs3_proc_read_setup, | |
ec06c096 | 919 | .read_done = nfs3_read_done, |
1da177e4 | 920 | .write_setup = nfs3_proc_write_setup, |
788e7a89 | 921 | .write_done = nfs3_write_done, |
1da177e4 | 922 | .commit_setup = nfs3_proc_commit_setup, |
788e7a89 | 923 | .commit_done = nfs3_commit_done, |
1da177e4 LT |
924 | .file_open = nfs_open, |
925 | .file_release = nfs_release, | |
926 | .lock = nfs3_proc_lock, | |
5c6a9f7d | 927 | .clear_acl_cache = nfs3_forget_cached_acls, |
1da177e4 | 928 | }; |