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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> | |
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 | { | |
1da177e4 | 30 | int res; |
1da177e4 LT |
31 | do { |
32 | res = rpc_call_sync(clnt, msg, flags); | |
33 | if (res != -EJUKEBOX) | |
34 | break; | |
150030b7 | 35 | schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME); |
1da177e4 | 36 | res = -ERESTARTSYS; |
150030b7 | 37 | } while (!fatal_signal_pending(current)); |
1da177e4 LT |
38 | return res; |
39 | } | |
40 | ||
dead28da | 41 | #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) |
1da177e4 LT |
42 | |
43 | static int | |
006ea73e | 44 | nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) |
1da177e4 LT |
45 | { |
46 | if (task->tk_status != -EJUKEBOX) | |
47 | return 0; | |
006ea73e | 48 | nfs_inc_stats(inode, NFSIOS_DELAY); |
1da177e4 LT |
49 | task->tk_status = 0; |
50 | rpc_restart_call(task); | |
51 | rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); | |
52 | return 1; | |
53 | } | |
54 | ||
1da177e4 | 55 | static int |
03c21733 BF |
56 | do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, |
57 | struct nfs_fsinfo *info) | |
1da177e4 | 58 | { |
dead28da CL |
59 | struct rpc_message msg = { |
60 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
61 | .rpc_argp = fhandle, | |
62 | .rpc_resp = info, | |
63 | }; | |
1da177e4 LT |
64 | int status; |
65 | ||
66 | dprintk("%s: call fsinfo\n", __FUNCTION__); | |
0e574af1 | 67 | nfs_fattr_init(info->fattr); |
dead28da | 68 | status = rpc_call_sync(client, &msg, 0); |
1da177e4 LT |
69 | dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); |
70 | if (!(info->fattr->valid & NFS_ATTR_FATTR)) { | |
dead28da CL |
71 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; |
72 | msg.rpc_resp = info->fattr; | |
73 | status = rpc_call_sync(client, &msg, 0); | |
1da177e4 LT |
74 | dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); |
75 | } | |
76 | return status; | |
77 | } | |
78 | ||
03c21733 | 79 | /* |
54ceac45 | 80 | * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb |
03c21733 BF |
81 | */ |
82 | static int | |
83 | nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, | |
84 | struct nfs_fsinfo *info) | |
85 | { | |
86 | int status; | |
87 | ||
88 | status = do_proc_get_root(server->client, fhandle, info); | |
5006a76c DH |
89 | if (status && server->nfs_client->cl_rpcclient != server->client) |
90 | status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); | |
03c21733 BF |
91 | return status; |
92 | } | |
93 | ||
1da177e4 LT |
94 | /* |
95 | * One function for each procedure in the NFS protocol. | |
96 | */ | |
97 | static int | |
98 | nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, | |
99 | struct nfs_fattr *fattr) | |
100 | { | |
dead28da CL |
101 | struct rpc_message msg = { |
102 | .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], | |
103 | .rpc_argp = fhandle, | |
104 | .rpc_resp = fattr, | |
105 | }; | |
1da177e4 LT |
106 | int status; |
107 | ||
108 | dprintk("NFS call getattr\n"); | |
0e574af1 | 109 | nfs_fattr_init(fattr); |
dead28da | 110 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
111 | dprintk("NFS reply getattr: %d\n", status); |
112 | return status; | |
113 | } | |
114 | ||
115 | static int | |
116 | nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, | |
117 | struct iattr *sattr) | |
118 | { | |
119 | struct inode *inode = dentry->d_inode; | |
120 | struct nfs3_sattrargs arg = { | |
121 | .fh = NFS_FH(inode), | |
122 | .sattr = sattr, | |
123 | }; | |
dead28da CL |
124 | struct rpc_message msg = { |
125 | .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], | |
126 | .rpc_argp = &arg, | |
127 | .rpc_resp = fattr, | |
128 | }; | |
1da177e4 LT |
129 | int status; |
130 | ||
131 | dprintk("NFS call setattr\n"); | |
0e574af1 | 132 | nfs_fattr_init(fattr); |
dead28da | 133 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
65e4308d TM |
134 | if (status == 0) |
135 | nfs_setattr_update_inode(inode, sattr); | |
1da177e4 LT |
136 | dprintk("NFS reply setattr: %d\n", status); |
137 | return status; | |
138 | } | |
139 | ||
140 | static int | |
141 | nfs3_proc_lookup(struct inode *dir, struct qstr *name, | |
142 | struct nfs_fh *fhandle, struct nfs_fattr *fattr) | |
143 | { | |
144 | struct nfs_fattr dir_attr; | |
145 | struct nfs3_diropargs arg = { | |
146 | .fh = NFS_FH(dir), | |
147 | .name = name->name, | |
148 | .len = name->len | |
149 | }; | |
150 | struct nfs3_diropres res = { | |
151 | .dir_attr = &dir_attr, | |
152 | .fh = fhandle, | |
153 | .fattr = fattr | |
154 | }; | |
dead28da CL |
155 | struct rpc_message msg = { |
156 | .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], | |
157 | .rpc_argp = &arg, | |
158 | .rpc_resp = &res, | |
159 | }; | |
1da177e4 LT |
160 | int status; |
161 | ||
162 | dprintk("NFS call lookup %s\n", name->name); | |
0e574af1 TM |
163 | nfs_fattr_init(&dir_attr); |
164 | nfs_fattr_init(fattr); | |
dead28da | 165 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
81c76880 | 166 | nfs_refresh_inode(dir, &dir_attr); |
dead28da CL |
167 | if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { |
168 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; | |
169 | msg.rpc_argp = fhandle; | |
170 | msg.rpc_resp = fattr; | |
171 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); | |
172 | } | |
1da177e4 | 173 | dprintk("NFS reply lookup: %d\n", status); |
1da177e4 LT |
174 | return status; |
175 | } | |
176 | ||
177 | static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) | |
178 | { | |
179 | struct nfs_fattr fattr; | |
180 | struct nfs3_accessargs arg = { | |
181 | .fh = NFS_FH(inode), | |
182 | }; | |
183 | struct nfs3_accessres res = { | |
184 | .fattr = &fattr, | |
185 | }; | |
186 | struct rpc_message msg = { | |
187 | .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], | |
188 | .rpc_argp = &arg, | |
189 | .rpc_resp = &res, | |
dead28da | 190 | .rpc_cred = entry->cred, |
1da177e4 LT |
191 | }; |
192 | int mode = entry->mask; | |
193 | int status; | |
194 | ||
195 | dprintk("NFS call access\n"); | |
1da177e4 LT |
196 | |
197 | if (mode & MAY_READ) | |
198 | arg.access |= NFS3_ACCESS_READ; | |
199 | if (S_ISDIR(inode->i_mode)) { | |
200 | if (mode & MAY_WRITE) | |
201 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; | |
202 | if (mode & MAY_EXEC) | |
203 | arg.access |= NFS3_ACCESS_LOOKUP; | |
204 | } else { | |
205 | if (mode & MAY_WRITE) | |
206 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; | |
207 | if (mode & MAY_EXEC) | |
208 | arg.access |= NFS3_ACCESS_EXECUTE; | |
209 | } | |
0e574af1 | 210 | nfs_fattr_init(&fattr); |
1da177e4 LT |
211 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
212 | nfs_refresh_inode(inode, &fattr); | |
213 | if (status == 0) { | |
214 | entry->mask = 0; | |
215 | if (res.access & NFS3_ACCESS_READ) | |
216 | entry->mask |= MAY_READ; | |
217 | if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) | |
218 | entry->mask |= MAY_WRITE; | |
219 | if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) | |
220 | entry->mask |= MAY_EXEC; | |
221 | } | |
222 | dprintk("NFS reply access: %d\n", status); | |
223 | return status; | |
224 | } | |
225 | ||
226 | static int nfs3_proc_readlink(struct inode *inode, struct page *page, | |
227 | unsigned int pgbase, unsigned int pglen) | |
228 | { | |
229 | struct nfs_fattr fattr; | |
230 | struct nfs3_readlinkargs args = { | |
231 | .fh = NFS_FH(inode), | |
232 | .pgbase = pgbase, | |
233 | .pglen = pglen, | |
234 | .pages = &page | |
235 | }; | |
dead28da CL |
236 | struct rpc_message msg = { |
237 | .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], | |
238 | .rpc_argp = &args, | |
239 | .rpc_resp = &fattr, | |
240 | }; | |
1da177e4 LT |
241 | int status; |
242 | ||
243 | dprintk("NFS call readlink\n"); | |
0e574af1 | 244 | nfs_fattr_init(&fattr); |
dead28da | 245 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
1da177e4 LT |
246 | nfs_refresh_inode(inode, &fattr); |
247 | dprintk("NFS reply readlink: %d\n", status); | |
248 | return status; | |
249 | } | |
250 | ||
1da177e4 LT |
251 | /* |
252 | * Create a regular file. | |
253 | * For now, we don't implement O_EXCL. | |
254 | */ | |
255 | static int | |
256 | nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
02a913a7 | 257 | int flags, struct nameidata *nd) |
1da177e4 LT |
258 | { |
259 | struct nfs_fh fhandle; | |
260 | struct nfs_fattr fattr; | |
261 | struct nfs_fattr dir_attr; | |
262 | struct nfs3_createargs arg = { | |
263 | .fh = NFS_FH(dir), | |
264 | .name = dentry->d_name.name, | |
265 | .len = dentry->d_name.len, | |
266 | .sattr = sattr, | |
267 | }; | |
268 | struct nfs3_diropres res = { | |
269 | .dir_attr = &dir_attr, | |
270 | .fh = &fhandle, | |
271 | .fattr = &fattr | |
272 | }; | |
dead28da CL |
273 | struct rpc_message msg = { |
274 | .rpc_proc = &nfs3_procedures[NFS3PROC_CREATE], | |
275 | .rpc_argp = &arg, | |
276 | .rpc_resp = &res, | |
277 | }; | |
055ffbea AG |
278 | mode_t mode = sattr->ia_mode; |
279 | int status; | |
1da177e4 LT |
280 | |
281 | dprintk("NFS call create %s\n", dentry->d_name.name); | |
282 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
283 | if (flags & O_EXCL) { | |
284 | arg.createmode = NFS3_CREATE_EXCLUSIVE; | |
285 | arg.verifier[0] = jiffies; | |
286 | arg.verifier[1] = current->pid; | |
287 | } | |
288 | ||
055ffbea AG |
289 | sattr->ia_mode &= ~current->fs->umask; |
290 | ||
1da177e4 | 291 | again: |
0e574af1 TM |
292 | nfs_fattr_init(&dir_attr); |
293 | nfs_fattr_init(&fattr); | |
dead28da CL |
294 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
295 | nfs_refresh_inode(dir, &dir_attr); | |
1da177e4 LT |
296 | |
297 | /* If the server doesn't support the exclusive creation semantics, | |
298 | * try again with simple 'guarded' mode. */ | |
46b9f8e1 | 299 | if (status == -ENOTSUPP) { |
1da177e4 LT |
300 | switch (arg.createmode) { |
301 | case NFS3_CREATE_EXCLUSIVE: | |
302 | arg.createmode = NFS3_CREATE_GUARDED; | |
303 | break; | |
304 | ||
305 | case NFS3_CREATE_GUARDED: | |
306 | arg.createmode = NFS3_CREATE_UNCHECKED; | |
307 | break; | |
308 | ||
309 | case NFS3_CREATE_UNCHECKED: | |
310 | goto out; | |
311 | } | |
312 | goto again; | |
313 | } | |
314 | ||
315 | if (status == 0) | |
316 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
317 | if (status != 0) | |
318 | goto out; | |
319 | ||
320 | /* When we created the file with exclusive semantics, make | |
321 | * sure we set the attributes afterwards. */ | |
322 | if (arg.createmode == NFS3_CREATE_EXCLUSIVE) { | |
323 | dprintk("NFS call setattr (post-create)\n"); | |
324 | ||
325 | if (!(sattr->ia_valid & ATTR_ATIME_SET)) | |
326 | sattr->ia_valid |= ATTR_ATIME; | |
327 | if (!(sattr->ia_valid & ATTR_MTIME_SET)) | |
328 | sattr->ia_valid |= ATTR_MTIME; | |
329 | ||
330 | /* Note: we could use a guarded setattr here, but I'm | |
331 | * not sure this buys us anything (and I'd have | |
332 | * to revamp the NFSv3 XDR code) */ | |
333 | status = nfs3_proc_setattr(dentry, &fattr, sattr); | |
e2f032e9 | 334 | nfs_post_op_update_inode(dentry->d_inode, &fattr); |
1da177e4 LT |
335 | dprintk("NFS reply setattr (post-create): %d\n", status); |
336 | } | |
055ffbea AG |
337 | if (status != 0) |
338 | goto out; | |
339 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
1da177e4 LT |
340 | out: |
341 | dprintk("NFS reply create: %d\n", status); | |
342 | return status; | |
343 | } | |
344 | ||
345 | static int | |
346 | nfs3_proc_remove(struct inode *dir, struct qstr *name) | |
347 | { | |
4fdc17b2 TM |
348 | struct nfs_removeargs arg = { |
349 | .fh = NFS_FH(dir), | |
350 | .name.len = name->len, | |
351 | .name.name = name->name, | |
1da177e4 | 352 | }; |
4fdc17b2 TM |
353 | struct nfs_removeres res; |
354 | struct rpc_message msg = { | |
355 | .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], | |
356 | .rpc_argp = &arg, | |
357 | .rpc_resp = &res, | |
1da177e4 LT |
358 | }; |
359 | int status; | |
360 | ||
361 | dprintk("NFS call remove %s\n", name->name); | |
4fdc17b2 | 362 | nfs_fattr_init(&res.dir_attr); |
1da177e4 | 363 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
4fdc17b2 | 364 | nfs_post_op_update_inode(dir, &res.dir_attr); |
1da177e4 LT |
365 | dprintk("NFS reply remove: %d\n", status); |
366 | return status; | |
367 | } | |
368 | ||
e4eff1a6 TM |
369 | static void |
370 | nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) | |
1da177e4 | 371 | { |
1da177e4 | 372 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; |
1da177e4 LT |
373 | } |
374 | ||
375 | static int | |
e4eff1a6 | 376 | nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) |
1da177e4 | 377 | { |
e4eff1a6 TM |
378 | struct nfs_removeres *res; |
379 | if (nfs3_async_handle_jukebox(task, dir)) | |
380 | return 0; | |
381 | res = task->tk_msg.rpc_resp; | |
382 | nfs_post_op_update_inode(dir, &res->dir_attr); | |
383 | return 1; | |
1da177e4 LT |
384 | } |
385 | ||
386 | static int | |
387 | nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, | |
388 | struct inode *new_dir, struct qstr *new_name) | |
389 | { | |
390 | struct nfs_fattr old_dir_attr, new_dir_attr; | |
391 | struct nfs3_renameargs arg = { | |
392 | .fromfh = NFS_FH(old_dir), | |
393 | .fromname = old_name->name, | |
394 | .fromlen = old_name->len, | |
395 | .tofh = NFS_FH(new_dir), | |
396 | .toname = new_name->name, | |
397 | .tolen = new_name->len | |
398 | }; | |
399 | struct nfs3_renameres res = { | |
400 | .fromattr = &old_dir_attr, | |
401 | .toattr = &new_dir_attr | |
402 | }; | |
dead28da CL |
403 | struct rpc_message msg = { |
404 | .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], | |
405 | .rpc_argp = &arg, | |
406 | .rpc_resp = &res, | |
407 | }; | |
1da177e4 LT |
408 | int status; |
409 | ||
410 | dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); | |
0e574af1 TM |
411 | nfs_fattr_init(&old_dir_attr); |
412 | nfs_fattr_init(&new_dir_attr); | |
dead28da | 413 | status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); |
decf491f TM |
414 | nfs_post_op_update_inode(old_dir, &old_dir_attr); |
415 | nfs_post_op_update_inode(new_dir, &new_dir_attr); | |
1da177e4 LT |
416 | dprintk("NFS reply rename: %d\n", status); |
417 | return status; | |
418 | } | |
419 | ||
420 | static int | |
421 | nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) | |
422 | { | |
423 | struct nfs_fattr dir_attr, fattr; | |
424 | struct nfs3_linkargs arg = { | |
425 | .fromfh = NFS_FH(inode), | |
426 | .tofh = NFS_FH(dir), | |
427 | .toname = name->name, | |
428 | .tolen = name->len | |
429 | }; | |
430 | struct nfs3_linkres res = { | |
431 | .dir_attr = &dir_attr, | |
432 | .fattr = &fattr | |
433 | }; | |
dead28da CL |
434 | struct rpc_message msg = { |
435 | .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], | |
436 | .rpc_argp = &arg, | |
437 | .rpc_resp = &res, | |
438 | }; | |
1da177e4 LT |
439 | int status; |
440 | ||
441 | dprintk("NFS call link %s\n", name->name); | |
0e574af1 TM |
442 | nfs_fattr_init(&dir_attr); |
443 | nfs_fattr_init(&fattr); | |
dead28da | 444 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
decf491f TM |
445 | nfs_post_op_update_inode(dir, &dir_attr); |
446 | nfs_post_op_update_inode(inode, &fattr); | |
1da177e4 LT |
447 | dprintk("NFS reply link: %d\n", status); |
448 | return status; | |
449 | } | |
450 | ||
451 | static int | |
94a6d753 CL |
452 | nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, |
453 | unsigned int len, struct iattr *sattr) | |
1da177e4 | 454 | { |
4f390c15 CL |
455 | struct nfs_fh fhandle; |
456 | struct nfs_fattr fattr, dir_attr; | |
1da177e4 LT |
457 | struct nfs3_symlinkargs arg = { |
458 | .fromfh = NFS_FH(dir), | |
4f390c15 CL |
459 | .fromname = dentry->d_name.name, |
460 | .fromlen = dentry->d_name.len, | |
94a6d753 CL |
461 | .pages = &page, |
462 | .pathlen = len, | |
1da177e4 LT |
463 | .sattr = sattr |
464 | }; | |
465 | struct nfs3_diropres res = { | |
466 | .dir_attr = &dir_attr, | |
4f390c15 CL |
467 | .fh = &fhandle, |
468 | .fattr = &fattr | |
1da177e4 | 469 | }; |
dead28da CL |
470 | struct rpc_message msg = { |
471 | .rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK], | |
472 | .rpc_argp = &arg, | |
473 | .rpc_resp = &res, | |
474 | }; | |
1da177e4 LT |
475 | int status; |
476 | ||
94a6d753 | 477 | if (len > NFS3_MAXPATHLEN) |
1da177e4 | 478 | return -ENAMETOOLONG; |
4f390c15 | 479 | |
94a6d753 CL |
480 | dprintk("NFS call symlink %s\n", dentry->d_name.name); |
481 | ||
0e574af1 | 482 | nfs_fattr_init(&dir_attr); |
4f390c15 | 483 | nfs_fattr_init(&fattr); |
dead28da | 484 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 485 | nfs_post_op_update_inode(dir, &dir_attr); |
4f390c15 CL |
486 | if (status != 0) |
487 | goto out; | |
488 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
489 | out: | |
1da177e4 LT |
490 | dprintk("NFS reply symlink: %d\n", status); |
491 | return status; | |
492 | } | |
493 | ||
494 | static int | |
495 | nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) | |
496 | { | |
497 | struct nfs_fh fhandle; | |
498 | struct nfs_fattr fattr, dir_attr; | |
499 | struct nfs3_mkdirargs arg = { | |
500 | .fh = NFS_FH(dir), | |
501 | .name = dentry->d_name.name, | |
502 | .len = dentry->d_name.len, | |
503 | .sattr = sattr | |
504 | }; | |
505 | struct nfs3_diropres res = { | |
506 | .dir_attr = &dir_attr, | |
507 | .fh = &fhandle, | |
508 | .fattr = &fattr | |
509 | }; | |
dead28da CL |
510 | struct rpc_message msg = { |
511 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR], | |
512 | .rpc_argp = &arg, | |
513 | .rpc_resp = &res, | |
514 | }; | |
055ffbea AG |
515 | int mode = sattr->ia_mode; |
516 | int status; | |
1da177e4 LT |
517 | |
518 | dprintk("NFS call mkdir %s\n", dentry->d_name.name); | |
055ffbea AG |
519 | |
520 | sattr->ia_mode &= ~current->fs->umask; | |
521 | ||
0e574af1 TM |
522 | nfs_fattr_init(&dir_attr); |
523 | nfs_fattr_init(&fattr); | |
dead28da | 524 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 525 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
526 | if (status != 0) |
527 | goto out; | |
528 | status = nfs_instantiate(dentry, &fhandle, &fattr); | |
529 | if (status != 0) | |
530 | goto out; | |
531 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
532 | out: | |
1da177e4 LT |
533 | dprintk("NFS reply mkdir: %d\n", status); |
534 | return status; | |
535 | } | |
536 | ||
537 | static int | |
538 | nfs3_proc_rmdir(struct inode *dir, struct qstr *name) | |
539 | { | |
540 | struct nfs_fattr dir_attr; | |
541 | struct nfs3_diropargs arg = { | |
542 | .fh = NFS_FH(dir), | |
543 | .name = name->name, | |
544 | .len = name->len | |
545 | }; | |
dead28da CL |
546 | struct rpc_message msg = { |
547 | .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], | |
548 | .rpc_argp = &arg, | |
549 | .rpc_resp = &dir_attr, | |
550 | }; | |
1da177e4 LT |
551 | int status; |
552 | ||
553 | dprintk("NFS call rmdir %s\n", name->name); | |
0e574af1 | 554 | nfs_fattr_init(&dir_attr); |
dead28da | 555 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 556 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
557 | dprintk("NFS reply rmdir: %d\n", status); |
558 | return status; | |
559 | } | |
560 | ||
561 | /* | |
562 | * The READDIR implementation is somewhat hackish - we pass the user buffer | |
563 | * to the encode function, which installs it in the receive iovec. | |
564 | * The decode function itself doesn't perform any decoding, it just makes | |
565 | * sure the reply is syntactically correct. | |
566 | * | |
567 | * Also note that this implementation handles both plain readdir and | |
568 | * readdirplus. | |
569 | */ | |
570 | static int | |
571 | nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, | |
572 | u64 cookie, struct page *page, unsigned int count, int plus) | |
573 | { | |
574 | struct inode *dir = dentry->d_inode; | |
575 | struct nfs_fattr dir_attr; | |
bc4785cd | 576 | __be32 *verf = NFS_COOKIEVERF(dir); |
1da177e4 LT |
577 | struct nfs3_readdirargs arg = { |
578 | .fh = NFS_FH(dir), | |
579 | .cookie = cookie, | |
580 | .verf = {verf[0], verf[1]}, | |
581 | .plus = plus, | |
582 | .count = count, | |
583 | .pages = &page | |
584 | }; | |
585 | struct nfs3_readdirres res = { | |
586 | .dir_attr = &dir_attr, | |
587 | .verf = verf, | |
588 | .plus = plus | |
589 | }; | |
590 | struct rpc_message msg = { | |
591 | .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], | |
592 | .rpc_argp = &arg, | |
593 | .rpc_resp = &res, | |
594 | .rpc_cred = cred | |
595 | }; | |
596 | int status; | |
597 | ||
1da177e4 LT |
598 | if (plus) |
599 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; | |
600 | ||
601 | dprintk("NFS call readdir%s %d\n", | |
602 | plus? "plus" : "", (unsigned int) cookie); | |
603 | ||
0e574af1 | 604 | nfs_fattr_init(&dir_attr); |
1da177e4 | 605 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
c4812998 TM |
606 | |
607 | nfs_invalidate_atime(dir); | |
608 | ||
1da177e4 LT |
609 | nfs_refresh_inode(dir, &dir_attr); |
610 | dprintk("NFS reply readdir: %d\n", status); | |
1da177e4 LT |
611 | return status; |
612 | } | |
613 | ||
614 | static int | |
615 | nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
616 | dev_t rdev) | |
617 | { | |
618 | struct nfs_fh fh; | |
619 | struct nfs_fattr fattr, dir_attr; | |
620 | struct nfs3_mknodargs arg = { | |
621 | .fh = NFS_FH(dir), | |
622 | .name = dentry->d_name.name, | |
623 | .len = dentry->d_name.len, | |
624 | .sattr = sattr, | |
625 | .rdev = rdev | |
626 | }; | |
627 | struct nfs3_diropres res = { | |
628 | .dir_attr = &dir_attr, | |
629 | .fh = &fh, | |
630 | .fattr = &fattr | |
631 | }; | |
dead28da CL |
632 | struct rpc_message msg = { |
633 | .rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD], | |
634 | .rpc_argp = &arg, | |
635 | .rpc_resp = &res, | |
636 | }; | |
055ffbea | 637 | mode_t mode = sattr->ia_mode; |
1da177e4 LT |
638 | int status; |
639 | ||
640 | switch (sattr->ia_mode & S_IFMT) { | |
641 | case S_IFBLK: arg.type = NF3BLK; break; | |
642 | case S_IFCHR: arg.type = NF3CHR; break; | |
643 | case S_IFIFO: arg.type = NF3FIFO; break; | |
644 | case S_IFSOCK: arg.type = NF3SOCK; break; | |
645 | default: return -EINVAL; | |
646 | } | |
647 | ||
648 | dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, | |
649 | MAJOR(rdev), MINOR(rdev)); | |
055ffbea AG |
650 | |
651 | sattr->ia_mode &= ~current->fs->umask; | |
652 | ||
0e574af1 TM |
653 | nfs_fattr_init(&dir_attr); |
654 | nfs_fattr_init(&fattr); | |
dead28da | 655 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 656 | nfs_post_op_update_inode(dir, &dir_attr); |
055ffbea AG |
657 | if (status != 0) |
658 | goto out; | |
659 | status = nfs_instantiate(dentry, &fh, &fattr); | |
660 | if (status != 0) | |
661 | goto out; | |
662 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
663 | out: | |
1da177e4 LT |
664 | dprintk("NFS reply mknod: %d\n", status); |
665 | return status; | |
666 | } | |
667 | ||
668 | static int | |
669 | nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, | |
670 | struct nfs_fsstat *stat) | |
671 | { | |
dead28da CL |
672 | struct rpc_message msg = { |
673 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], | |
674 | .rpc_argp = fhandle, | |
675 | .rpc_resp = stat, | |
676 | }; | |
1da177e4 LT |
677 | int status; |
678 | ||
679 | dprintk("NFS call fsstat\n"); | |
0e574af1 | 680 | nfs_fattr_init(stat->fattr); |
dead28da | 681 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
682 | dprintk("NFS reply statfs: %d\n", status); |
683 | return status; | |
684 | } | |
685 | ||
686 | static int | |
687 | nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, | |
688 | struct nfs_fsinfo *info) | |
689 | { | |
dead28da CL |
690 | struct rpc_message msg = { |
691 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
692 | .rpc_argp = fhandle, | |
693 | .rpc_resp = info, | |
694 | }; | |
1da177e4 LT |
695 | int status; |
696 | ||
697 | dprintk("NFS call fsinfo\n"); | |
0e574af1 | 698 | nfs_fattr_init(info->fattr); |
5006a76c | 699 | status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0); |
1da177e4 LT |
700 | dprintk("NFS reply fsinfo: %d\n", status); |
701 | return status; | |
702 | } | |
703 | ||
704 | static int | |
705 | nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, | |
706 | struct nfs_pathconf *info) | |
707 | { | |
dead28da CL |
708 | struct rpc_message msg = { |
709 | .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], | |
710 | .rpc_argp = fhandle, | |
711 | .rpc_resp = info, | |
712 | }; | |
1da177e4 LT |
713 | int status; |
714 | ||
715 | dprintk("NFS call pathconf\n"); | |
0e574af1 | 716 | nfs_fattr_init(info->fattr); |
dead28da | 717 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
718 | dprintk("NFS reply pathconf: %d\n", status); |
719 | return status; | |
720 | } | |
721 | ||
ec06c096 | 722 | static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) |
1da177e4 | 723 | { |
006ea73e | 724 | if (nfs3_async_handle_jukebox(task, data->inode)) |
ec06c096 | 725 | return -EAGAIN; |
8850df99 TM |
726 | |
727 | nfs_invalidate_atime(data->inode); | |
728 | nfs_refresh_inode(data->inode, &data->fattr); | |
ec06c096 | 729 | return 0; |
1da177e4 LT |
730 | } |
731 | ||
bdc7f021 | 732 | static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) |
1da177e4 | 733 | { |
bdc7f021 | 734 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; |
1da177e4 LT |
735 | } |
736 | ||
788e7a89 | 737 | static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 738 | { |
006ea73e | 739 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 740 | return -EAGAIN; |
1da177e4 | 741 | if (task->tk_status >= 0) |
70ca8852 | 742 | nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); |
788e7a89 | 743 | return 0; |
1da177e4 LT |
744 | } |
745 | ||
bdc7f021 | 746 | static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 747 | { |
bdc7f021 | 748 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; |
1da177e4 LT |
749 | } |
750 | ||
788e7a89 | 751 | static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 752 | { |
006ea73e | 753 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 754 | return -EAGAIN; |
9e08a3c5 | 755 | nfs_refresh_inode(data->inode, data->res.fattr); |
788e7a89 | 756 | return 0; |
1da177e4 LT |
757 | } |
758 | ||
bdc7f021 | 759 | static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 760 | { |
bdc7f021 | 761 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; |
1da177e4 LT |
762 | } |
763 | ||
764 | static int | |
765 | nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) | |
766 | { | |
1093a60e CL |
767 | struct inode *inode = filp->f_path.dentry->d_inode; |
768 | ||
769 | return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); | |
1da177e4 LT |
770 | } |
771 | ||
509de811 | 772 | const struct nfs_rpc_ops nfs_v3_clientops = { |
1da177e4 LT |
773 | .version = 3, /* protocol version */ |
774 | .dentry_ops = &nfs_dentry_operations, | |
b7fa0554 AG |
775 | .dir_inode_ops = &nfs3_dir_inode_operations, |
776 | .file_inode_ops = &nfs3_file_inode_operations, | |
1da177e4 LT |
777 | .getroot = nfs3_proc_get_root, |
778 | .getattr = nfs3_proc_getattr, | |
779 | .setattr = nfs3_proc_setattr, | |
780 | .lookup = nfs3_proc_lookup, | |
781 | .access = nfs3_proc_access, | |
782 | .readlink = nfs3_proc_readlink, | |
1da177e4 LT |
783 | .create = nfs3_proc_create, |
784 | .remove = nfs3_proc_remove, | |
785 | .unlink_setup = nfs3_proc_unlink_setup, | |
786 | .unlink_done = nfs3_proc_unlink_done, | |
787 | .rename = nfs3_proc_rename, | |
788 | .link = nfs3_proc_link, | |
789 | .symlink = nfs3_proc_symlink, | |
790 | .mkdir = nfs3_proc_mkdir, | |
791 | .rmdir = nfs3_proc_rmdir, | |
792 | .readdir = nfs3_proc_readdir, | |
793 | .mknod = nfs3_proc_mknod, | |
794 | .statfs = nfs3_proc_statfs, | |
795 | .fsinfo = nfs3_proc_fsinfo, | |
796 | .pathconf = nfs3_proc_pathconf, | |
797 | .decode_dirent = nfs3_decode_dirent, | |
798 | .read_setup = nfs3_proc_read_setup, | |
ec06c096 | 799 | .read_done = nfs3_read_done, |
1da177e4 | 800 | .write_setup = nfs3_proc_write_setup, |
788e7a89 | 801 | .write_done = nfs3_write_done, |
1da177e4 | 802 | .commit_setup = nfs3_proc_commit_setup, |
788e7a89 | 803 | .commit_done = nfs3_commit_done, |
1da177e4 LT |
804 | .file_open = nfs_open, |
805 | .file_release = nfs_release, | |
806 | .lock = nfs3_proc_lock, | |
5c6a9f7d | 807 | .clear_acl_cache = nfs3_forget_cached_acls, |
1da177e4 | 808 | }; |