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> | |
b7fa0554 | 19 | #include <linux/nfs_mount.h> |
1da177e4 | 20 | |
006ea73e | 21 | #include "iostat.h" |
f7b422b1 | 22 | #include "internal.h" |
006ea73e | 23 | |
1da177e4 LT |
24 | #define NFSDBG_FACILITY NFSDBG_PROC |
25 | ||
1da177e4 LT |
26 | /* A wrapper to handle the EJUKEBOX error message */ |
27 | static int | |
28 | nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) | |
29 | { | |
30 | sigset_t oldset; | |
31 | int res; | |
32 | rpc_clnt_sigmask(clnt, &oldset); | |
33 | do { | |
34 | res = rpc_call_sync(clnt, msg, flags); | |
35 | if (res != -EJUKEBOX) | |
36 | break; | |
041e0e3b | 37 | schedule_timeout_interruptible(NFS_JUKEBOX_RETRY_TIME); |
1da177e4 LT |
38 | res = -ERESTARTSYS; |
39 | } while (!signalled()); | |
40 | rpc_clnt_sigunmask(clnt, &oldset); | |
41 | return res; | |
42 | } | |
43 | ||
dead28da | 44 | #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) |
1da177e4 LT |
45 | |
46 | static int | |
006ea73e | 47 | nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) |
1da177e4 LT |
48 | { |
49 | if (task->tk_status != -EJUKEBOX) | |
50 | return 0; | |
006ea73e | 51 | nfs_inc_stats(inode, NFSIOS_DELAY); |
1da177e4 LT |
52 | task->tk_status = 0; |
53 | rpc_restart_call(task); | |
54 | rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); | |
55 | return 1; | |
56 | } | |
57 | ||
1da177e4 | 58 | static int |
03c21733 BF |
59 | do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, |
60 | struct nfs_fsinfo *info) | |
1da177e4 | 61 | { |
dead28da CL |
62 | struct rpc_message msg = { |
63 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
64 | .rpc_argp = fhandle, | |
65 | .rpc_resp = info, | |
66 | }; | |
1da177e4 LT |
67 | int status; |
68 | ||
69 | dprintk("%s: call fsinfo\n", __FUNCTION__); | |
0e574af1 | 70 | nfs_fattr_init(info->fattr); |
dead28da | 71 | status = rpc_call_sync(client, &msg, 0); |
1da177e4 LT |
72 | dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); |
73 | if (!(info->fattr->valid & NFS_ATTR_FATTR)) { | |
dead28da CL |
74 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; |
75 | msg.rpc_resp = info->fattr; | |
76 | status = rpc_call_sync(client, &msg, 0); | |
1da177e4 LT |
77 | dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); |
78 | } | |
79 | return status; | |
80 | } | |
81 | ||
03c21733 | 82 | /* |
54ceac45 | 83 | * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb |
03c21733 BF |
84 | */ |
85 | static int | |
86 | nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, | |
87 | struct nfs_fsinfo *info) | |
88 | { | |
89 | int status; | |
90 | ||
91 | status = do_proc_get_root(server->client, fhandle, info); | |
5006a76c DH |
92 | if (status && server->nfs_client->cl_rpcclient != server->client) |
93 | status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); | |
03c21733 BF |
94 | return status; |
95 | } | |
96 | ||
1da177e4 LT |
97 | /* |
98 | * One function for each procedure in the NFS protocol. | |
99 | */ | |
100 | static int | |
101 | nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, | |
102 | struct nfs_fattr *fattr) | |
103 | { | |
dead28da CL |
104 | struct rpc_message msg = { |
105 | .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], | |
106 | .rpc_argp = fhandle, | |
107 | .rpc_resp = fattr, | |
108 | }; | |
1da177e4 LT |
109 | int status; |
110 | ||
111 | dprintk("NFS call getattr\n"); | |
0e574af1 | 112 | nfs_fattr_init(fattr); |
dead28da | 113 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
114 | dprintk("NFS reply getattr: %d\n", status); |
115 | return status; | |
116 | } | |
117 | ||
118 | static int | |
119 | nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, | |
120 | struct iattr *sattr) | |
121 | { | |
122 | struct inode *inode = dentry->d_inode; | |
123 | struct nfs3_sattrargs arg = { | |
124 | .fh = NFS_FH(inode), | |
125 | .sattr = sattr, | |
126 | }; | |
dead28da CL |
127 | struct rpc_message msg = { |
128 | .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], | |
129 | .rpc_argp = &arg, | |
130 | .rpc_resp = fattr, | |
131 | }; | |
1da177e4 LT |
132 | int status; |
133 | ||
134 | dprintk("NFS call setattr\n"); | |
0e574af1 | 135 | nfs_fattr_init(fattr); |
dead28da | 136 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
65e4308d TM |
137 | if (status == 0) |
138 | nfs_setattr_update_inode(inode, sattr); | |
1da177e4 LT |
139 | dprintk("NFS reply setattr: %d\n", status); |
140 | return status; | |
141 | } | |
142 | ||
143 | static int | |
144 | nfs3_proc_lookup(struct inode *dir, struct qstr *name, | |
145 | struct nfs_fh *fhandle, struct nfs_fattr *fattr) | |
146 | { | |
147 | struct nfs_fattr dir_attr; | |
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 | .dir_attr = &dir_attr, | |
155 | .fh = fhandle, | |
156 | .fattr = fattr | |
157 | }; | |
dead28da CL |
158 | struct rpc_message msg = { |
159 | .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], | |
160 | .rpc_argp = &arg, | |
161 | .rpc_resp = &res, | |
162 | }; | |
1da177e4 LT |
163 | int status; |
164 | ||
165 | dprintk("NFS call lookup %s\n", name->name); | |
0e574af1 TM |
166 | nfs_fattr_init(&dir_attr); |
167 | nfs_fattr_init(fattr); | |
dead28da | 168 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
81c76880 | 169 | nfs_refresh_inode(dir, &dir_attr); |
dead28da CL |
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 | 176 | dprintk("NFS reply lookup: %d\n", status); |
1da177e4 LT |
177 | return status; |
178 | } | |
179 | ||
180 | static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) | |
181 | { | |
182 | struct nfs_fattr fattr; | |
183 | struct nfs3_accessargs arg = { | |
184 | .fh = NFS_FH(inode), | |
185 | }; | |
186 | struct nfs3_accessres res = { | |
187 | .fattr = &fattr, | |
188 | }; | |
189 | struct rpc_message msg = { | |
190 | .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], | |
191 | .rpc_argp = &arg, | |
192 | .rpc_resp = &res, | |
dead28da | 193 | .rpc_cred = entry->cred, |
1da177e4 LT |
194 | }; |
195 | int mode = entry->mask; | |
196 | int status; | |
197 | ||
198 | dprintk("NFS call access\n"); | |
1da177e4 LT |
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 | } | |
0e574af1 | 213 | nfs_fattr_init(&fattr); |
1da177e4 LT |
214 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
215 | nfs_refresh_inode(inode, &fattr); | |
216 | if (status == 0) { | |
217 | entry->mask = 0; | |
218 | if (res.access & NFS3_ACCESS_READ) | |
219 | entry->mask |= MAY_READ; | |
220 | if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) | |
221 | entry->mask |= MAY_WRITE; | |
222 | if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) | |
223 | entry->mask |= MAY_EXEC; | |
224 | } | |
225 | dprintk("NFS reply access: %d\n", status); | |
226 | return status; | |
227 | } | |
228 | ||
229 | static int nfs3_proc_readlink(struct inode *inode, struct page *page, | |
230 | unsigned int pgbase, unsigned int pglen) | |
231 | { | |
232 | struct nfs_fattr fattr; | |
233 | struct nfs3_readlinkargs args = { | |
234 | .fh = NFS_FH(inode), | |
235 | .pgbase = pgbase, | |
236 | .pglen = pglen, | |
237 | .pages = &page | |
238 | }; | |
dead28da CL |
239 | struct rpc_message msg = { |
240 | .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], | |
241 | .rpc_argp = &args, | |
242 | .rpc_resp = &fattr, | |
243 | }; | |
1da177e4 LT |
244 | int status; |
245 | ||
246 | dprintk("NFS call readlink\n"); | |
0e574af1 | 247 | nfs_fattr_init(&fattr); |
dead28da | 248 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
1da177e4 LT |
249 | nfs_refresh_inode(inode, &fattr); |
250 | dprintk("NFS reply readlink: %d\n", status); | |
251 | return status; | |
252 | } | |
253 | ||
1da177e4 LT |
254 | /* |
255 | * Create a regular file. | |
256 | * For now, we don't implement O_EXCL. | |
257 | */ | |
258 | static int | |
259 | nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
02a913a7 | 260 | int flags, struct nameidata *nd) |
1da177e4 LT |
261 | { |
262 | struct nfs_fh fhandle; | |
263 | struct nfs_fattr fattr; | |
264 | struct nfs_fattr dir_attr; | |
265 | struct nfs3_createargs arg = { | |
266 | .fh = NFS_FH(dir), | |
267 | .name = dentry->d_name.name, | |
268 | .len = dentry->d_name.len, | |
269 | .sattr = sattr, | |
270 | }; | |
271 | struct nfs3_diropres res = { | |
272 | .dir_attr = &dir_attr, | |
273 | .fh = &fhandle, | |
274 | .fattr = &fattr | |
275 | }; | |
dead28da CL |
276 | struct rpc_message msg = { |
277 | .rpc_proc = &nfs3_procedures[NFS3PROC_CREATE], | |
278 | .rpc_argp = &arg, | |
279 | .rpc_resp = &res, | |
280 | }; | |
055ffbea AG |
281 | mode_t mode = sattr->ia_mode; |
282 | int status; | |
1da177e4 LT |
283 | |
284 | dprintk("NFS call create %s\n", dentry->d_name.name); | |
285 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
286 | if (flags & O_EXCL) { | |
287 | arg.createmode = NFS3_CREATE_EXCLUSIVE; | |
288 | arg.verifier[0] = jiffies; | |
289 | arg.verifier[1] = current->pid; | |
290 | } | |
291 | ||
055ffbea AG |
292 | sattr->ia_mode &= ~current->fs->umask; |
293 | ||
1da177e4 | 294 | again: |
0e574af1 TM |
295 | nfs_fattr_init(&dir_attr); |
296 | nfs_fattr_init(&fattr); | |
dead28da CL |
297 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
298 | nfs_refresh_inode(dir, &dir_attr); | |
1da177e4 LT |
299 | |
300 | /* If the server doesn't support the exclusive creation semantics, | |
301 | * try again with simple 'guarded' mode. */ | |
46b9f8e1 | 302 | if (status == -ENOTSUPP) { |
1da177e4 LT |
303 | switch (arg.createmode) { |
304 | case NFS3_CREATE_EXCLUSIVE: | |
305 | arg.createmode = NFS3_CREATE_GUARDED; | |
306 | break; | |
307 | ||
308 | case NFS3_CREATE_GUARDED: | |
309 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
310 | break; | |
311 | ||
312 | case NFS3_CREATE_UNCHECKED: | |
313 | goto out; | |
314 | } | |
315 | goto again; | |
316 | } | |
317 | ||
318 | if (status == 0) | |
319 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
320 | if (status != 0) | |
321 | goto out; | |
322 | ||
323 | /* When we created the file with exclusive semantics, make | |
324 | * sure we set the attributes afterwards. */ | |
325 | if (arg.createmode == NFS3_CREATE_EXCLUSIVE) { | |
326 | dprintk("NFS call setattr (post-create)\n"); | |
327 | ||
328 | if (!(sattr->ia_valid & ATTR_ATIME_SET)) | |
329 | sattr->ia_valid |= ATTR_ATIME; | |
330 | if (!(sattr->ia_valid & ATTR_MTIME_SET)) | |
331 | sattr->ia_valid |= ATTR_MTIME; | |
332 | ||
333 | /* Note: we could use a guarded setattr here, but I'm | |
334 | * not sure this buys us anything (and I'd have | |
335 | * to revamp the NFSv3 XDR code) */ | |
336 | status = nfs3_proc_setattr(dentry, &fattr, sattr); | |
e2f032e9 | 337 | nfs_post_op_update_inode(dentry->d_inode, &fattr); |
1da177e4 LT |
338 | dprintk("NFS reply setattr (post-create): %d\n", status); |
339 | } | |
055ffbea AG |
340 | if (status != 0) |
341 | goto out; | |
342 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
1da177e4 LT |
343 | out: |
344 | dprintk("NFS reply create: %d\n", status); | |
345 | return status; | |
346 | } | |
347 | ||
348 | static int | |
349 | nfs3_proc_remove(struct inode *dir, struct qstr *name) | |
350 | { | |
4fdc17b2 TM |
351 | struct nfs_removeargs arg = { |
352 | .fh = NFS_FH(dir), | |
353 | .name.len = name->len, | |
354 | .name.name = name->name, | |
1da177e4 | 355 | }; |
4fdc17b2 TM |
356 | struct nfs_removeres res; |
357 | struct rpc_message msg = { | |
358 | .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], | |
359 | .rpc_argp = &arg, | |
360 | .rpc_resp = &res, | |
1da177e4 LT |
361 | }; |
362 | int status; | |
363 | ||
364 | dprintk("NFS call remove %s\n", name->name); | |
4fdc17b2 | 365 | nfs_fattr_init(&res.dir_attr); |
1da177e4 | 366 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
4fdc17b2 | 367 | nfs_post_op_update_inode(dir, &res.dir_attr); |
1da177e4 LT |
368 | dprintk("NFS reply remove: %d\n", status); |
369 | return status; | |
370 | } | |
371 | ||
e4eff1a6 TM |
372 | static void |
373 | nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) | |
1da177e4 | 374 | { |
1da177e4 | 375 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; |
1da177e4 LT |
376 | } |
377 | ||
378 | static int | |
e4eff1a6 | 379 | nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) |
1da177e4 | 380 | { |
e4eff1a6 TM |
381 | struct nfs_removeres *res; |
382 | if (nfs3_async_handle_jukebox(task, dir)) | |
383 | return 0; | |
384 | res = task->tk_msg.rpc_resp; | |
385 | nfs_post_op_update_inode(dir, &res->dir_attr); | |
386 | return 1; | |
1da177e4 LT |
387 | } |
388 | ||
389 | static int | |
390 | nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, | |
391 | struct inode *new_dir, struct qstr *new_name) | |
392 | { | |
393 | struct nfs_fattr old_dir_attr, new_dir_attr; | |
394 | struct nfs3_renameargs arg = { | |
395 | .fromfh = NFS_FH(old_dir), | |
396 | .fromname = old_name->name, | |
397 | .fromlen = old_name->len, | |
398 | .tofh = NFS_FH(new_dir), | |
399 | .toname = new_name->name, | |
400 | .tolen = new_name->len | |
401 | }; | |
402 | struct nfs3_renameres res = { | |
403 | .fromattr = &old_dir_attr, | |
404 | .toattr = &new_dir_attr | |
405 | }; | |
dead28da CL |
406 | struct rpc_message msg = { |
407 | .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], | |
408 | .rpc_argp = &arg, | |
409 | .rpc_resp = &res, | |
410 | }; | |
1da177e4 LT |
411 | int status; |
412 | ||
413 | dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); | |
0e574af1 TM |
414 | nfs_fattr_init(&old_dir_attr); |
415 | nfs_fattr_init(&new_dir_attr); | |
dead28da | 416 | status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); |
decf491f TM |
417 | nfs_post_op_update_inode(old_dir, &old_dir_attr); |
418 | nfs_post_op_update_inode(new_dir, &new_dir_attr); | |
1da177e4 LT |
419 | dprintk("NFS reply rename: %d\n", status); |
420 | return status; | |
421 | } | |
422 | ||
423 | static int | |
424 | nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) | |
425 | { | |
426 | struct nfs_fattr dir_attr, fattr; | |
427 | struct nfs3_linkargs arg = { | |
428 | .fromfh = NFS_FH(inode), | |
429 | .tofh = NFS_FH(dir), | |
430 | .toname = name->name, | |
431 | .tolen = name->len | |
432 | }; | |
433 | struct nfs3_linkres res = { | |
434 | .dir_attr = &dir_attr, | |
435 | .fattr = &fattr | |
436 | }; | |
dead28da CL |
437 | struct rpc_message msg = { |
438 | .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], | |
439 | .rpc_argp = &arg, | |
440 | .rpc_resp = &res, | |
441 | }; | |
1da177e4 LT |
442 | int status; |
443 | ||
444 | dprintk("NFS call link %s\n", name->name); | |
0e574af1 TM |
445 | nfs_fattr_init(&dir_attr); |
446 | nfs_fattr_init(&fattr); | |
dead28da | 447 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
decf491f TM |
448 | nfs_post_op_update_inode(dir, &dir_attr); |
449 | nfs_post_op_update_inode(inode, &fattr); | |
1da177e4 LT |
450 | dprintk("NFS reply link: %d\n", status); |
451 | return status; | |
452 | } | |
453 | ||
454 | static int | |
94a6d753 CL |
455 | nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, |
456 | unsigned int len, struct iattr *sattr) | |
1da177e4 | 457 | { |
4f390c15 CL |
458 | struct nfs_fh fhandle; |
459 | struct nfs_fattr fattr, dir_attr; | |
1da177e4 LT |
460 | struct nfs3_symlinkargs arg = { |
461 | .fromfh = NFS_FH(dir), | |
4f390c15 CL |
462 | .fromname = dentry->d_name.name, |
463 | .fromlen = dentry->d_name.len, | |
94a6d753 CL |
464 | .pages = &page, |
465 | .pathlen = len, | |
1da177e4 LT |
466 | .sattr = sattr |
467 | }; | |
468 | struct nfs3_diropres res = { | |
469 | .dir_attr = &dir_attr, | |
4f390c15 CL |
470 | .fh = &fhandle, |
471 | .fattr = &fattr | |
1da177e4 | 472 | }; |
dead28da CL |
473 | struct rpc_message msg = { |
474 | .rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK], | |
475 | .rpc_argp = &arg, | |
476 | .rpc_resp = &res, | |
477 | }; | |
1da177e4 LT |
478 | int status; |
479 | ||
94a6d753 | 480 | if (len > NFS3_MAXPATHLEN) |
1da177e4 | 481 | return -ENAMETOOLONG; |
4f390c15 | 482 | |
94a6d753 CL |
483 | dprintk("NFS call symlink %s\n", dentry->d_name.name); |
484 | ||
0e574af1 | 485 | nfs_fattr_init(&dir_attr); |
4f390c15 | 486 | nfs_fattr_init(&fattr); |
dead28da | 487 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 488 | nfs_post_op_update_inode(dir, &dir_attr); |
4f390c15 CL |
489 | if (status != 0) |
490 | goto out; | |
491 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
492 | out: | |
1da177e4 LT |
493 | dprintk("NFS reply symlink: %d\n", status); |
494 | return status; | |
495 | } | |
496 | ||
497 | static int | |
498 | nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) | |
499 | { | |
500 | struct nfs_fh fhandle; | |
501 | struct nfs_fattr fattr, dir_attr; | |
502 | struct nfs3_mkdirargs arg = { | |
503 | .fh = NFS_FH(dir), | |
504 | .name = dentry->d_name.name, | |
505 | .len = dentry->d_name.len, | |
506 | .sattr = sattr | |
507 | }; | |
508 | struct nfs3_diropres res = { | |
509 | .dir_attr = &dir_attr, | |
510 | .fh = &fhandle, | |
511 | .fattr = &fattr | |
512 | }; | |
dead28da CL |
513 | struct rpc_message msg = { |
514 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR], | |
515 | .rpc_argp = &arg, | |
516 | .rpc_resp = &res, | |
517 | }; | |
055ffbea AG |
518 | int mode = sattr->ia_mode; |
519 | int status; | |
1da177e4 LT |
520 | |
521 | dprintk("NFS call mkdir %s\n", dentry->d_name.name); | |
055ffbea AG |
522 | |
523 | sattr->ia_mode &= ~current->fs->umask; | |
524 | ||
0e574af1 TM |
525 | nfs_fattr_init(&dir_attr); |
526 | nfs_fattr_init(&fattr); | |
dead28da | 527 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 528 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
529 | if (status != 0) |
530 | goto out; | |
531 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
532 | if (status != 0) | |
533 | goto out; | |
534 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
535 | out: | |
1da177e4 LT |
536 | dprintk("NFS reply mkdir: %d\n", status); |
537 | return status; | |
538 | } | |
539 | ||
540 | static int | |
541 | nfs3_proc_rmdir(struct inode *dir, struct qstr *name) | |
542 | { | |
543 | struct nfs_fattr dir_attr; | |
544 | struct nfs3_diropargs arg = { | |
545 | .fh = NFS_FH(dir), | |
546 | .name = name->name, | |
547 | .len = name->len | |
548 | }; | |
dead28da CL |
549 | struct rpc_message msg = { |
550 | .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], | |
551 | .rpc_argp = &arg, | |
552 | .rpc_resp = &dir_attr, | |
553 | }; | |
1da177e4 LT |
554 | int status; |
555 | ||
556 | dprintk("NFS call rmdir %s\n", name->name); | |
0e574af1 | 557 | nfs_fattr_init(&dir_attr); |
dead28da | 558 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 559 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
560 | dprintk("NFS reply rmdir: %d\n", status); |
561 | return status; | |
562 | } | |
563 | ||
564 | /* | |
565 | * The READDIR implementation is somewhat hackish - we pass the user buffer | |
566 | * to the encode function, which installs it in the receive iovec. | |
567 | * The decode function itself doesn't perform any decoding, it just makes | |
568 | * sure the reply is syntactically correct. | |
569 | * | |
570 | * Also note that this implementation handles both plain readdir and | |
571 | * readdirplus. | |
572 | */ | |
573 | static int | |
574 | nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, | |
575 | u64 cookie, struct page *page, unsigned int count, int plus) | |
576 | { | |
577 | struct inode *dir = dentry->d_inode; | |
578 | struct nfs_fattr dir_attr; | |
bc4785cd | 579 | __be32 *verf = NFS_COOKIEVERF(dir); |
1da177e4 LT |
580 | struct nfs3_readdirargs arg = { |
581 | .fh = NFS_FH(dir), | |
582 | .cookie = cookie, | |
583 | .verf = {verf[0], verf[1]}, | |
584 | .plus = plus, | |
585 | .count = count, | |
586 | .pages = &page | |
587 | }; | |
588 | struct nfs3_readdirres res = { | |
589 | .dir_attr = &dir_attr, | |
590 | .verf = verf, | |
591 | .plus = plus | |
592 | }; | |
593 | struct rpc_message msg = { | |
594 | .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], | |
595 | .rpc_argp = &arg, | |
596 | .rpc_resp = &res, | |
597 | .rpc_cred = cred | |
598 | }; | |
599 | int status; | |
600 | ||
1da177e4 LT |
601 | if (plus) |
602 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; | |
603 | ||
604 | dprintk("NFS call readdir%s %d\n", | |
605 | plus? "plus" : "", (unsigned int) cookie); | |
606 | ||
0e574af1 | 607 | nfs_fattr_init(&dir_attr); |
1da177e4 | 608 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
c4812998 TM |
609 | |
610 | nfs_invalidate_atime(dir); | |
611 | ||
1da177e4 LT |
612 | nfs_refresh_inode(dir, &dir_attr); |
613 | dprintk("NFS reply readdir: %d\n", status); | |
1da177e4 LT |
614 | return status; |
615 | } | |
616 | ||
617 | static int | |
618 | nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
619 | dev_t rdev) | |
620 | { | |
621 | struct nfs_fh fh; | |
622 | struct nfs_fattr fattr, dir_attr; | |
623 | struct nfs3_mknodargs arg = { | |
624 | .fh = NFS_FH(dir), | |
625 | .name = dentry->d_name.name, | |
626 | .len = dentry->d_name.len, | |
627 | .sattr = sattr, | |
628 | .rdev = rdev | |
629 | }; | |
630 | struct nfs3_diropres res = { | |
631 | .dir_attr = &dir_attr, | |
632 | .fh = &fh, | |
633 | .fattr = &fattr | |
634 | }; | |
dead28da CL |
635 | struct rpc_message msg = { |
636 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD], | |
637 | .rpc_argp = &arg, | |
638 | .rpc_resp = &res, | |
639 | }; | |
055ffbea | 640 | mode_t mode = sattr->ia_mode; |
1da177e4 LT |
641 | int status; |
642 | ||
643 | switch (sattr->ia_mode & S_IFMT) { | |
644 | case S_IFBLK: arg.type = NF3BLK; break; | |
645 | case S_IFCHR: arg.type = NF3CHR; break; | |
646 | case S_IFIFO: arg.type = NF3FIFO; break; | |
647 | case S_IFSOCK: arg.type = NF3SOCK; break; | |
648 | default: return -EINVAL; | |
649 | } | |
650 | ||
651 | dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, | |
652 | MAJOR(rdev), MINOR(rdev)); | |
055ffbea AG |
653 | |
654 | sattr->ia_mode &= ~current->fs->umask; | |
655 | ||
0e574af1 TM |
656 | nfs_fattr_init(&dir_attr); |
657 | nfs_fattr_init(&fattr); | |
dead28da | 658 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 659 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
660 | if (status != 0) |
661 | goto out; | |
662 | status = nfs_instantiate(dentry, &fh, &fattr); | |
663 | if (status != 0) | |
664 | goto out; | |
665 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
666 | out: | |
1da177e4 LT |
667 | dprintk("NFS reply mknod: %d\n", status); |
668 | return status; | |
669 | } | |
670 | ||
671 | static int | |
672 | nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, | |
673 | struct nfs_fsstat *stat) | |
674 | { | |
dead28da CL |
675 | struct rpc_message msg = { |
676 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], | |
677 | .rpc_argp = fhandle, | |
678 | .rpc_resp = stat, | |
679 | }; | |
1da177e4 LT |
680 | int status; |
681 | ||
682 | dprintk("NFS call fsstat\n"); | |
0e574af1 | 683 | nfs_fattr_init(stat->fattr); |
dead28da | 684 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
685 | dprintk("NFS reply statfs: %d\n", status); |
686 | return status; | |
687 | } | |
688 | ||
689 | static int | |
690 | nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, | |
691 | struct nfs_fsinfo *info) | |
692 | { | |
dead28da CL |
693 | struct rpc_message msg = { |
694 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
695 | .rpc_argp = fhandle, | |
696 | .rpc_resp = info, | |
697 | }; | |
1da177e4 LT |
698 | int status; |
699 | ||
700 | dprintk("NFS call fsinfo\n"); | |
0e574af1 | 701 | nfs_fattr_init(info->fattr); |
5006a76c | 702 | status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0); |
1da177e4 LT |
703 | dprintk("NFS reply fsinfo: %d\n", status); |
704 | return status; | |
705 | } | |
706 | ||
707 | static int | |
708 | nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, | |
709 | struct nfs_pathconf *info) | |
710 | { | |
dead28da CL |
711 | struct rpc_message msg = { |
712 | .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], | |
713 | .rpc_argp = fhandle, | |
714 | .rpc_resp = info, | |
715 | }; | |
1da177e4 LT |
716 | int status; |
717 | ||
718 | dprintk("NFS call pathconf\n"); | |
0e574af1 | 719 | nfs_fattr_init(info->fattr); |
dead28da | 720 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
721 | dprintk("NFS reply pathconf: %d\n", status); |
722 | return status; | |
723 | } | |
724 | ||
ec06c096 | 725 | static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) |
1da177e4 | 726 | { |
006ea73e | 727 | if (nfs3_async_handle_jukebox(task, data->inode)) |
ec06c096 | 728 | return -EAGAIN; |
8850df99 TM |
729 | |
730 | nfs_invalidate_atime(data->inode); | |
731 | nfs_refresh_inode(data->inode, &data->fattr); | |
ec06c096 | 732 | return 0; |
1da177e4 LT |
733 | } |
734 | ||
ec06c096 | 735 | static void nfs3_proc_read_setup(struct nfs_read_data *data) |
1da177e4 | 736 | { |
1da177e4 LT |
737 | struct rpc_message msg = { |
738 | .rpc_proc = &nfs3_procedures[NFS3PROC_READ], | |
739 | .rpc_argp = &data->args, | |
740 | .rpc_resp = &data->res, | |
741 | .rpc_cred = data->cred, | |
742 | }; | |
743 | ||
ec06c096 | 744 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
745 | } |
746 | ||
788e7a89 | 747 | static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 748 | { |
006ea73e | 749 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 750 | return -EAGAIN; |
1da177e4 | 751 | if (task->tk_status >= 0) |
70ca8852 | 752 | nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); |
788e7a89 | 753 | return 0; |
1da177e4 LT |
754 | } |
755 | ||
788e7a89 | 756 | static void nfs3_proc_write_setup(struct nfs_write_data *data, int how) |
1da177e4 | 757 | { |
1da177e4 LT |
758 | struct rpc_message msg = { |
759 | .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], | |
760 | .rpc_argp = &data->args, | |
761 | .rpc_resp = &data->res, | |
762 | .rpc_cred = data->cred, | |
763 | }; | |
764 | ||
788e7a89 | 765 | data->args.stable = NFS_UNSTABLE; |
1da177e4 | 766 | if (how & FLUSH_STABLE) { |
788e7a89 TM |
767 | data->args.stable = NFS_FILE_SYNC; |
768 | if (NFS_I(data->inode)->ncommit) | |
769 | data->args.stable = NFS_DATA_SYNC; | |
770 | } | |
1da177e4 LT |
771 | |
772 | /* Finalize the task. */ | |
788e7a89 | 773 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
774 | } |
775 | ||
788e7a89 | 776 | static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 777 | { |
006ea73e | 778 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 779 | return -EAGAIN; |
9e08a3c5 | 780 | nfs_refresh_inode(data->inode, data->res.fattr); |
788e7a89 | 781 | return 0; |
1da177e4 LT |
782 | } |
783 | ||
788e7a89 | 784 | static void nfs3_proc_commit_setup(struct nfs_write_data *data, int how) |
1da177e4 | 785 | { |
1da177e4 LT |
786 | struct rpc_message msg = { |
787 | .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], | |
788 | .rpc_argp = &data->args, | |
789 | .rpc_resp = &data->res, | |
790 | .rpc_cred = data->cred, | |
791 | }; | |
792 | ||
788e7a89 | 793 | rpc_call_setup(&data->task, &msg, 0); |
1da177e4 LT |
794 | } |
795 | ||
796 | static int | |
797 | nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) | |
798 | { | |
01cce933 | 799 | return nlmclnt_proc(filp->f_path.dentry->d_inode, cmd, fl); |
1da177e4 LT |
800 | } |
801 | ||
509de811 | 802 | const struct nfs_rpc_ops nfs_v3_clientops = { |
1da177e4 LT |
803 | .version = 3, /* protocol version */ |
804 | .dentry_ops = &nfs_dentry_operations, | |
b7fa0554 AG |
805 | .dir_inode_ops = &nfs3_dir_inode_operations, |
806 | .file_inode_ops = &nfs3_file_inode_operations, | |
1da177e4 LT |
807 | .getroot = nfs3_proc_get_root, |
808 | .getattr = nfs3_proc_getattr, | |
809 | .setattr = nfs3_proc_setattr, | |
810 | .lookup = nfs3_proc_lookup, | |
811 | .access = nfs3_proc_access, | |
812 | .readlink = nfs3_proc_readlink, | |
1da177e4 LT |
813 | .create = nfs3_proc_create, |
814 | .remove = nfs3_proc_remove, | |
815 | .unlink_setup = nfs3_proc_unlink_setup, | |
816 | .unlink_done = nfs3_proc_unlink_done, | |
817 | .rename = nfs3_proc_rename, | |
818 | .link = nfs3_proc_link, | |
819 | .symlink = nfs3_proc_symlink, | |
820 | .mkdir = nfs3_proc_mkdir, | |
821 | .rmdir = nfs3_proc_rmdir, | |
822 | .readdir = nfs3_proc_readdir, | |
823 | .mknod = nfs3_proc_mknod, | |
824 | .statfs = nfs3_proc_statfs, | |
825 | .fsinfo = nfs3_proc_fsinfo, | |
826 | .pathconf = nfs3_proc_pathconf, | |
827 | .decode_dirent = nfs3_decode_dirent, | |
828 | .read_setup = nfs3_proc_read_setup, | |
ec06c096 | 829 | .read_done = nfs3_read_done, |
1da177e4 | 830 | .write_setup = nfs3_proc_write_setup, |
788e7a89 | 831 | .write_done = nfs3_write_done, |
1da177e4 | 832 | .commit_setup = nfs3_proc_commit_setup, |
788e7a89 | 833 | .commit_done = nfs3_commit_done, |
1da177e4 LT |
834 | .file_open = nfs_open, |
835 | .file_release = nfs_release, | |
836 | .lock = nfs3_proc_lock, | |
5c6a9f7d | 837 | .clear_acl_cache = nfs3_forget_cached_acls, |
1da177e4 | 838 | }; |