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> | |
1da177e4 LT |
10 | #include <linux/errno.h> |
11 | #include <linux/string.h> | |
12 | #include <linux/sunrpc/clnt.h> | |
5a0e3ad6 | 13 | #include <linux/slab.h> |
1da177e4 LT |
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 | ||
b68d69b8 | 26 | /* A wrapper to handle the EJUKEBOX and EKEYEXPIRED error messages */ |
1da177e4 LT |
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); | |
b68d69b8 | 33 | if (res != -EJUKEBOX && res != -EKEYEXPIRED) |
1da177e4 | 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 | 45 | { |
b68d69b8 | 46 | if (task->tk_status != -EJUKEBOX && task->tk_status != -EKEYEXPIRED) |
1da177e4 | 47 | return 0; |
b68d69b8 JL |
48 | if (task->tk_status == -EJUKEBOX) |
49 | nfs_inc_stats(inode, NFSIOS_DELAY); | |
1da177e4 LT |
50 | task->tk_status = 0; |
51 | rpc_restart_call(task); | |
52 | rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); | |
53 | return 1; | |
54 | } | |
55 | ||
1da177e4 | 56 | static int |
03c21733 BF |
57 | do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, |
58 | struct nfs_fsinfo *info) | |
1da177e4 | 59 | { |
dead28da CL |
60 | struct rpc_message msg = { |
61 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
62 | .rpc_argp = fhandle, | |
63 | .rpc_resp = info, | |
64 | }; | |
1da177e4 LT |
65 | int status; |
66 | ||
3110ff80 | 67 | dprintk("%s: call fsinfo\n", __func__); |
0e574af1 | 68 | nfs_fattr_init(info->fattr); |
dead28da | 69 | status = rpc_call_sync(client, &msg, 0); |
3110ff80 | 70 | dprintk("%s: reply fsinfo: %d\n", __func__, status); |
1da177e4 | 71 | if (!(info->fattr->valid & NFS_ATTR_FATTR)) { |
dead28da CL |
72 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; |
73 | msg.rpc_resp = info->fattr; | |
74 | status = rpc_call_sync(client, &msg, 0); | |
3110ff80 | 75 | dprintk("%s: reply getattr: %d\n", __func__, status); |
1da177e4 LT |
76 | } |
77 | return status; | |
78 | } | |
79 | ||
03c21733 | 80 | /* |
54ceac45 | 81 | * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb |
03c21733 BF |
82 | */ |
83 | static int | |
84 | nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, | |
85 | struct nfs_fsinfo *info) | |
86 | { | |
87 | int status; | |
88 | ||
89 | status = do_proc_get_root(server->client, fhandle, info); | |
5006a76c DH |
90 | if (status && server->nfs_client->cl_rpcclient != server->client) |
91 | status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); | |
03c21733 BF |
92 | return status; |
93 | } | |
94 | ||
1da177e4 LT |
95 | /* |
96 | * One function for each procedure in the NFS protocol. | |
97 | */ | |
98 | static int | |
99 | nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, | |
100 | struct nfs_fattr *fattr) | |
101 | { | |
dead28da CL |
102 | struct rpc_message msg = { |
103 | .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], | |
104 | .rpc_argp = fhandle, | |
105 | .rpc_resp = fattr, | |
106 | }; | |
1da177e4 LT |
107 | int status; |
108 | ||
109 | dprintk("NFS call getattr\n"); | |
0e574af1 | 110 | nfs_fattr_init(fattr); |
dead28da | 111 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
112 | dprintk("NFS reply getattr: %d\n", status); |
113 | return status; | |
114 | } | |
115 | ||
116 | static int | |
117 | nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, | |
118 | struct iattr *sattr) | |
119 | { | |
120 | struct inode *inode = dentry->d_inode; | |
121 | struct nfs3_sattrargs arg = { | |
122 | .fh = NFS_FH(inode), | |
123 | .sattr = sattr, | |
124 | }; | |
dead28da CL |
125 | struct rpc_message msg = { |
126 | .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], | |
127 | .rpc_argp = &arg, | |
128 | .rpc_resp = fattr, | |
129 | }; | |
1da177e4 LT |
130 | int status; |
131 | ||
132 | dprintk("NFS call setattr\n"); | |
659bfcd6 TM |
133 | if (sattr->ia_valid & ATTR_FILE) |
134 | msg.rpc_cred = nfs_file_cred(sattr->ia_file); | |
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 | { | |
1da177e4 LT |
147 | struct nfs3_diropargs arg = { |
148 | .fh = NFS_FH(dir), | |
149 | .name = name->name, | |
150 | .len = name->len | |
151 | }; | |
152 | struct nfs3_diropres res = { | |
1da177e4 LT |
153 | .fh = fhandle, |
154 | .fattr = fattr | |
155 | }; | |
dead28da CL |
156 | struct rpc_message msg = { |
157 | .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], | |
158 | .rpc_argp = &arg, | |
159 | .rpc_resp = &res, | |
160 | }; | |
1da177e4 LT |
161 | int status; |
162 | ||
163 | dprintk("NFS call lookup %s\n", name->name); | |
e1fb4d05 TM |
164 | res.dir_attr = nfs_alloc_fattr(); |
165 | if (res.dir_attr == NULL) | |
166 | return -ENOMEM; | |
167 | ||
0e574af1 | 168 | nfs_fattr_init(fattr); |
dead28da | 169 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
e1fb4d05 | 170 | nfs_refresh_inode(dir, res.dir_attr); |
dead28da CL |
171 | if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { |
172 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; | |
173 | msg.rpc_argp = fhandle; | |
174 | msg.rpc_resp = fattr; | |
175 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); | |
176 | } | |
e1fb4d05 | 177 | nfs_free_fattr(res.dir_attr); |
1da177e4 | 178 | dprintk("NFS reply lookup: %d\n", status); |
1da177e4 LT |
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 | ||
0b4aae7a TM |
256 | struct nfs3_createdata { |
257 | struct rpc_message msg; | |
258 | union { | |
259 | struct nfs3_createargs create; | |
260 | struct nfs3_mkdirargs mkdir; | |
261 | struct nfs3_symlinkargs symlink; | |
262 | struct nfs3_mknodargs mknod; | |
263 | } arg; | |
264 | struct nfs3_diropres res; | |
265 | struct nfs_fh fh; | |
266 | struct nfs_fattr fattr; | |
267 | struct nfs_fattr dir_attr; | |
268 | }; | |
269 | ||
270 | static struct nfs3_createdata *nfs3_alloc_createdata(void) | |
271 | { | |
272 | struct nfs3_createdata *data; | |
273 | ||
274 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
275 | if (data != NULL) { | |
276 | data->msg.rpc_argp = &data->arg; | |
277 | data->msg.rpc_resp = &data->res; | |
278 | data->res.fh = &data->fh; | |
279 | data->res.fattr = &data->fattr; | |
280 | data->res.dir_attr = &data->dir_attr; | |
281 | nfs_fattr_init(data->res.fattr); | |
282 | nfs_fattr_init(data->res.dir_attr); | |
283 | } | |
284 | return data; | |
285 | } | |
286 | ||
287 | static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) | |
288 | { | |
289 | int status; | |
290 | ||
291 | status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); | |
292 | nfs_post_op_update_inode(dir, data->res.dir_attr); | |
293 | if (status == 0) | |
294 | status = nfs_instantiate(dentry, data->res.fh, data->res.fattr); | |
295 | return status; | |
296 | } | |
297 | ||
298 | static void nfs3_free_createdata(struct nfs3_createdata *data) | |
299 | { | |
300 | kfree(data); | |
301 | } | |
302 | ||
1da177e4 LT |
303 | /* |
304 | * Create a regular file. | |
1da177e4 LT |
305 | */ |
306 | static int | |
307 | nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
02a913a7 | 308 | int flags, struct nameidata *nd) |
1da177e4 | 309 | { |
0b4aae7a | 310 | struct nfs3_createdata *data; |
055ffbea | 311 | mode_t mode = sattr->ia_mode; |
0b4aae7a | 312 | int status = -ENOMEM; |
1da177e4 LT |
313 | |
314 | dprintk("NFS call create %s\n", dentry->d_name.name); | |
0b4aae7a TM |
315 | |
316 | data = nfs3_alloc_createdata(); | |
317 | if (data == NULL) | |
318 | goto out; | |
319 | ||
320 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; | |
321 | data->arg.create.fh = NFS_FH(dir); | |
322 | data->arg.create.name = dentry->d_name.name; | |
323 | data->arg.create.len = dentry->d_name.len; | |
324 | data->arg.create.sattr = sattr; | |
325 | ||
326 | data->arg.create.createmode = NFS3_CREATE_UNCHECKED; | |
1da177e4 | 327 | if (flags & O_EXCL) { |
0b4aae7a TM |
328 | data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; |
329 | data->arg.create.verifier[0] = jiffies; | |
330 | data->arg.create.verifier[1] = current->pid; | |
1da177e4 LT |
331 | } |
332 | ||
ce3b0f8d | 333 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 334 | |
0b4aae7a TM |
335 | for (;;) { |
336 | status = nfs3_do_create(dir, dentry, data); | |
1da177e4 | 337 | |
0b4aae7a TM |
338 | if (status != -ENOTSUPP) |
339 | break; | |
340 | /* If the server doesn't support the exclusive creation | |
341 | * semantics, try again with simple 'guarded' mode. */ | |
342 | switch (data->arg.create.createmode) { | |
1da177e4 | 343 | case NFS3_CREATE_EXCLUSIVE: |
0b4aae7a | 344 | data->arg.create.createmode = NFS3_CREATE_GUARDED; |
1da177e4 LT |
345 | break; |
346 | ||
347 | case NFS3_CREATE_GUARDED: | |
0b4aae7a | 348 | data->arg.create.createmode = NFS3_CREATE_UNCHECKED; |
1da177e4 LT |
349 | break; |
350 | ||
351 | case NFS3_CREATE_UNCHECKED: | |
352 | goto out; | |
353 | } | |
0b4aae7a TM |
354 | nfs_fattr_init(data->res.dir_attr); |
355 | nfs_fattr_init(data->res.fattr); | |
1da177e4 LT |
356 | } |
357 | ||
1da177e4 LT |
358 | if (status != 0) |
359 | goto out; | |
360 | ||
361 | /* When we created the file with exclusive semantics, make | |
362 | * sure we set the attributes afterwards. */ | |
0b4aae7a | 363 | if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { |
1da177e4 LT |
364 | dprintk("NFS call setattr (post-create)\n"); |
365 | ||
366 | if (!(sattr->ia_valid & ATTR_ATIME_SET)) | |
367 | sattr->ia_valid |= ATTR_ATIME; | |
368 | if (!(sattr->ia_valid & ATTR_MTIME_SET)) | |
369 | sattr->ia_valid |= ATTR_MTIME; | |
370 | ||
371 | /* Note: we could use a guarded setattr here, but I'm | |
372 | * not sure this buys us anything (and I'd have | |
373 | * to revamp the NFSv3 XDR code) */ | |
0b4aae7a TM |
374 | status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); |
375 | nfs_post_op_update_inode(dentry->d_inode, data->res.fattr); | |
1da177e4 | 376 | dprintk("NFS reply setattr (post-create): %d\n", status); |
0b4aae7a TM |
377 | if (status != 0) |
378 | goto out; | |
1da177e4 | 379 | } |
055ffbea | 380 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); |
1da177e4 | 381 | out: |
0b4aae7a | 382 | nfs3_free_createdata(data); |
1da177e4 LT |
383 | dprintk("NFS reply create: %d\n", status); |
384 | return status; | |
385 | } | |
386 | ||
387 | static int | |
388 | nfs3_proc_remove(struct inode *dir, struct qstr *name) | |
389 | { | |
4fdc17b2 TM |
390 | struct nfs_removeargs arg = { |
391 | .fh = NFS_FH(dir), | |
392 | .name.len = name->len, | |
393 | .name.name = name->name, | |
1da177e4 | 394 | }; |
4fdc17b2 TM |
395 | struct nfs_removeres res; |
396 | struct rpc_message msg = { | |
397 | .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], | |
398 | .rpc_argp = &arg, | |
399 | .rpc_resp = &res, | |
1da177e4 LT |
400 | }; |
401 | int status; | |
402 | ||
403 | dprintk("NFS call remove %s\n", name->name); | |
4fdc17b2 | 404 | nfs_fattr_init(&res.dir_attr); |
1da177e4 | 405 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
4fdc17b2 | 406 | nfs_post_op_update_inode(dir, &res.dir_attr); |
1da177e4 LT |
407 | dprintk("NFS reply remove: %d\n", status); |
408 | return status; | |
409 | } | |
410 | ||
e4eff1a6 TM |
411 | static void |
412 | nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) | |
1da177e4 | 413 | { |
1da177e4 | 414 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; |
1da177e4 LT |
415 | } |
416 | ||
417 | static int | |
e4eff1a6 | 418 | nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) |
1da177e4 | 419 | { |
e4eff1a6 TM |
420 | struct nfs_removeres *res; |
421 | if (nfs3_async_handle_jukebox(task, dir)) | |
422 | return 0; | |
423 | res = task->tk_msg.rpc_resp; | |
424 | nfs_post_op_update_inode(dir, &res->dir_attr); | |
425 | return 1; | |
1da177e4 LT |
426 | } |
427 | ||
428 | static int | |
429 | nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, | |
430 | struct inode *new_dir, struct qstr *new_name) | |
431 | { | |
432 | struct nfs_fattr old_dir_attr, new_dir_attr; | |
433 | struct nfs3_renameargs arg = { | |
434 | .fromfh = NFS_FH(old_dir), | |
435 | .fromname = old_name->name, | |
436 | .fromlen = old_name->len, | |
437 | .tofh = NFS_FH(new_dir), | |
438 | .toname = new_name->name, | |
439 | .tolen = new_name->len | |
440 | }; | |
441 | struct nfs3_renameres res = { | |
442 | .fromattr = &old_dir_attr, | |
443 | .toattr = &new_dir_attr | |
444 | }; | |
dead28da CL |
445 | struct rpc_message msg = { |
446 | .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], | |
447 | .rpc_argp = &arg, | |
448 | .rpc_resp = &res, | |
449 | }; | |
1da177e4 LT |
450 | int status; |
451 | ||
452 | dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); | |
0e574af1 TM |
453 | nfs_fattr_init(&old_dir_attr); |
454 | nfs_fattr_init(&new_dir_attr); | |
dead28da | 455 | status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); |
decf491f TM |
456 | nfs_post_op_update_inode(old_dir, &old_dir_attr); |
457 | nfs_post_op_update_inode(new_dir, &new_dir_attr); | |
1da177e4 LT |
458 | dprintk("NFS reply rename: %d\n", status); |
459 | return status; | |
460 | } | |
461 | ||
462 | static int | |
463 | nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) | |
464 | { | |
465 | struct nfs_fattr dir_attr, fattr; | |
466 | struct nfs3_linkargs arg = { | |
467 | .fromfh = NFS_FH(inode), | |
468 | .tofh = NFS_FH(dir), | |
469 | .toname = name->name, | |
470 | .tolen = name->len | |
471 | }; | |
472 | struct nfs3_linkres res = { | |
473 | .dir_attr = &dir_attr, | |
474 | .fattr = &fattr | |
475 | }; | |
dead28da CL |
476 | struct rpc_message msg = { |
477 | .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], | |
478 | .rpc_argp = &arg, | |
479 | .rpc_resp = &res, | |
480 | }; | |
1da177e4 LT |
481 | int status; |
482 | ||
483 | dprintk("NFS call link %s\n", name->name); | |
0e574af1 TM |
484 | nfs_fattr_init(&dir_attr); |
485 | nfs_fattr_init(&fattr); | |
dead28da | 486 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
decf491f TM |
487 | nfs_post_op_update_inode(dir, &dir_attr); |
488 | nfs_post_op_update_inode(inode, &fattr); | |
1da177e4 LT |
489 | dprintk("NFS reply link: %d\n", status); |
490 | return status; | |
491 | } | |
492 | ||
493 | static int | |
94a6d753 CL |
494 | nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, |
495 | unsigned int len, struct iattr *sattr) | |
1da177e4 | 496 | { |
0b4aae7a TM |
497 | struct nfs3_createdata *data; |
498 | int status = -ENOMEM; | |
1da177e4 | 499 | |
94a6d753 | 500 | if (len > NFS3_MAXPATHLEN) |
1da177e4 | 501 | return -ENAMETOOLONG; |
4f390c15 | 502 | |
94a6d753 CL |
503 | dprintk("NFS call symlink %s\n", dentry->d_name.name); |
504 | ||
0b4aae7a TM |
505 | data = nfs3_alloc_createdata(); |
506 | if (data == NULL) | |
4f390c15 | 507 | goto out; |
0b4aae7a TM |
508 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; |
509 | data->arg.symlink.fromfh = NFS_FH(dir); | |
510 | data->arg.symlink.fromname = dentry->d_name.name; | |
511 | data->arg.symlink.fromlen = dentry->d_name.len; | |
512 | data->arg.symlink.pages = &page; | |
513 | data->arg.symlink.pathlen = len; | |
514 | data->arg.symlink.sattr = sattr; | |
515 | ||
516 | status = nfs3_do_create(dir, dentry, data); | |
517 | ||
518 | nfs3_free_createdata(data); | |
4f390c15 | 519 | out: |
1da177e4 LT |
520 | dprintk("NFS reply symlink: %d\n", status); |
521 | return status; | |
522 | } | |
523 | ||
524 | static int | |
525 | nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) | |
526 | { | |
0b4aae7a | 527 | struct nfs3_createdata *data; |
055ffbea | 528 | int mode = sattr->ia_mode; |
0b4aae7a | 529 | int status = -ENOMEM; |
1da177e4 LT |
530 | |
531 | dprintk("NFS call mkdir %s\n", dentry->d_name.name); | |
055ffbea | 532 | |
ce3b0f8d | 533 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 534 | |
0b4aae7a TM |
535 | data = nfs3_alloc_createdata(); |
536 | if (data == NULL) | |
055ffbea | 537 | goto out; |
0b4aae7a TM |
538 | |
539 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; | |
540 | data->arg.mkdir.fh = NFS_FH(dir); | |
541 | data->arg.mkdir.name = dentry->d_name.name; | |
542 | data->arg.mkdir.len = dentry->d_name.len; | |
543 | data->arg.mkdir.sattr = sattr; | |
544 | ||
545 | status = nfs3_do_create(dir, dentry, data); | |
055ffbea AG |
546 | if (status != 0) |
547 | goto out; | |
0b4aae7a | 548 | |
055ffbea AG |
549 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); |
550 | out: | |
0b4aae7a | 551 | nfs3_free_createdata(data); |
1da177e4 LT |
552 | dprintk("NFS reply mkdir: %d\n", status); |
553 | return status; | |
554 | } | |
555 | ||
556 | static int | |
557 | nfs3_proc_rmdir(struct inode *dir, struct qstr *name) | |
558 | { | |
559 | struct nfs_fattr dir_attr; | |
560 | struct nfs3_diropargs arg = { | |
561 | .fh = NFS_FH(dir), | |
562 | .name = name->name, | |
563 | .len = name->len | |
564 | }; | |
dead28da CL |
565 | struct rpc_message msg = { |
566 | .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], | |
567 | .rpc_argp = &arg, | |
568 | .rpc_resp = &dir_attr, | |
569 | }; | |
1da177e4 LT |
570 | int status; |
571 | ||
572 | dprintk("NFS call rmdir %s\n", name->name); | |
0e574af1 | 573 | nfs_fattr_init(&dir_attr); |
dead28da | 574 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 575 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
576 | dprintk("NFS reply rmdir: %d\n", status); |
577 | return status; | |
578 | } | |
579 | ||
580 | /* | |
581 | * The READDIR implementation is somewhat hackish - we pass the user buffer | |
582 | * to the encode function, which installs it in the receive iovec. | |
583 | * The decode function itself doesn't perform any decoding, it just makes | |
584 | * sure the reply is syntactically correct. | |
585 | * | |
586 | * Also note that this implementation handles both plain readdir and | |
587 | * readdirplus. | |
588 | */ | |
589 | static int | |
590 | nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, | |
591 | u64 cookie, struct page *page, unsigned int count, int plus) | |
592 | { | |
593 | struct inode *dir = dentry->d_inode; | |
594 | struct nfs_fattr dir_attr; | |
bc4785cd | 595 | __be32 *verf = NFS_COOKIEVERF(dir); |
1da177e4 LT |
596 | struct nfs3_readdirargs arg = { |
597 | .fh = NFS_FH(dir), | |
598 | .cookie = cookie, | |
599 | .verf = {verf[0], verf[1]}, | |
600 | .plus = plus, | |
601 | .count = count, | |
602 | .pages = &page | |
603 | }; | |
604 | struct nfs3_readdirres res = { | |
605 | .dir_attr = &dir_attr, | |
606 | .verf = verf, | |
607 | .plus = plus | |
608 | }; | |
609 | struct rpc_message msg = { | |
610 | .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], | |
611 | .rpc_argp = &arg, | |
612 | .rpc_resp = &res, | |
613 | .rpc_cred = cred | |
614 | }; | |
615 | int status; | |
616 | ||
1da177e4 LT |
617 | if (plus) |
618 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; | |
619 | ||
620 | dprintk("NFS call readdir%s %d\n", | |
621 | plus? "plus" : "", (unsigned int) cookie); | |
622 | ||
0e574af1 | 623 | nfs_fattr_init(&dir_attr); |
1da177e4 | 624 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
c4812998 TM |
625 | |
626 | nfs_invalidate_atime(dir); | |
627 | ||
1da177e4 LT |
628 | nfs_refresh_inode(dir, &dir_attr); |
629 | dprintk("NFS reply readdir: %d\n", status); | |
1da177e4 LT |
630 | return status; |
631 | } | |
632 | ||
633 | static int | |
634 | nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
635 | dev_t rdev) | |
636 | { | |
0b4aae7a | 637 | struct nfs3_createdata *data; |
055ffbea | 638 | mode_t mode = sattr->ia_mode; |
0b4aae7a | 639 | int status = -ENOMEM; |
1da177e4 LT |
640 | |
641 | dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, | |
642 | MAJOR(rdev), MINOR(rdev)); | |
055ffbea | 643 | |
ce3b0f8d | 644 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 645 | |
0b4aae7a TM |
646 | data = nfs3_alloc_createdata(); |
647 | if (data == NULL) | |
055ffbea | 648 | goto out; |
0b4aae7a TM |
649 | |
650 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; | |
651 | data->arg.mknod.fh = NFS_FH(dir); | |
652 | data->arg.mknod.name = dentry->d_name.name; | |
653 | data->arg.mknod.len = dentry->d_name.len; | |
654 | data->arg.mknod.sattr = sattr; | |
655 | data->arg.mknod.rdev = rdev; | |
656 | ||
657 | switch (sattr->ia_mode & S_IFMT) { | |
658 | case S_IFBLK: | |
659 | data->arg.mknod.type = NF3BLK; | |
660 | break; | |
661 | case S_IFCHR: | |
662 | data->arg.mknod.type = NF3CHR; | |
663 | break; | |
664 | case S_IFIFO: | |
665 | data->arg.mknod.type = NF3FIFO; | |
666 | break; | |
667 | case S_IFSOCK: | |
668 | data->arg.mknod.type = NF3SOCK; | |
669 | break; | |
670 | default: | |
671 | status = -EINVAL; | |
672 | goto out; | |
673 | } | |
674 | ||
675 | status = nfs3_do_create(dir, dentry, data); | |
055ffbea AG |
676 | if (status != 0) |
677 | goto out; | |
678 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
679 | out: | |
0b4aae7a | 680 | nfs3_free_createdata(data); |
1da177e4 LT |
681 | dprintk("NFS reply mknod: %d\n", status); |
682 | return status; | |
683 | } | |
684 | ||
685 | static int | |
686 | nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, | |
687 | struct nfs_fsstat *stat) | |
688 | { | |
dead28da CL |
689 | struct rpc_message msg = { |
690 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], | |
691 | .rpc_argp = fhandle, | |
692 | .rpc_resp = stat, | |
693 | }; | |
1da177e4 LT |
694 | int status; |
695 | ||
696 | dprintk("NFS call fsstat\n"); | |
0e574af1 | 697 | nfs_fattr_init(stat->fattr); |
dead28da | 698 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
699 | dprintk("NFS reply statfs: %d\n", status); |
700 | return status; | |
701 | } | |
702 | ||
703 | static int | |
37ca8f5c | 704 | do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, |
1da177e4 LT |
705 | struct nfs_fsinfo *info) |
706 | { | |
dead28da CL |
707 | struct rpc_message msg = { |
708 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
709 | .rpc_argp = fhandle, | |
710 | .rpc_resp = info, | |
711 | }; | |
1da177e4 LT |
712 | int status; |
713 | ||
714 | dprintk("NFS call fsinfo\n"); | |
0e574af1 | 715 | nfs_fattr_init(info->fattr); |
37ca8f5c | 716 | status = rpc_call_sync(client, &msg, 0); |
1da177e4 LT |
717 | dprintk("NFS reply fsinfo: %d\n", status); |
718 | return status; | |
719 | } | |
720 | ||
37ca8f5c EK |
721 | /* |
722 | * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via | |
723 | * nfs_create_server | |
724 | */ | |
725 | static int | |
726 | nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, | |
727 | struct nfs_fsinfo *info) | |
728 | { | |
729 | int status; | |
730 | ||
731 | status = do_proc_fsinfo(server->client, fhandle, info); | |
732 | if (status && server->nfs_client->cl_rpcclient != server->client) | |
733 | status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); | |
734 | return status; | |
735 | } | |
736 | ||
1da177e4 LT |
737 | static int |
738 | nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, | |
739 | struct nfs_pathconf *info) | |
740 | { | |
dead28da CL |
741 | struct rpc_message msg = { |
742 | .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], | |
743 | .rpc_argp = fhandle, | |
744 | .rpc_resp = info, | |
745 | }; | |
1da177e4 LT |
746 | int status; |
747 | ||
748 | dprintk("NFS call pathconf\n"); | |
0e574af1 | 749 | nfs_fattr_init(info->fattr); |
dead28da | 750 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
751 | dprintk("NFS reply pathconf: %d\n", status); |
752 | return status; | |
753 | } | |
754 | ||
ec06c096 | 755 | static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) |
1da177e4 | 756 | { |
006ea73e | 757 | if (nfs3_async_handle_jukebox(task, data->inode)) |
ec06c096 | 758 | return -EAGAIN; |
8850df99 TM |
759 | |
760 | nfs_invalidate_atime(data->inode); | |
761 | nfs_refresh_inode(data->inode, &data->fattr); | |
ec06c096 | 762 | return 0; |
1da177e4 LT |
763 | } |
764 | ||
bdc7f021 | 765 | static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) |
1da177e4 | 766 | { |
bdc7f021 | 767 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; |
1da177e4 LT |
768 | } |
769 | ||
788e7a89 | 770 | static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 771 | { |
006ea73e | 772 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 773 | return -EAGAIN; |
1da177e4 | 774 | if (task->tk_status >= 0) |
70ca8852 | 775 | nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); |
788e7a89 | 776 | return 0; |
1da177e4 LT |
777 | } |
778 | ||
bdc7f021 | 779 | static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 780 | { |
bdc7f021 | 781 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; |
1da177e4 LT |
782 | } |
783 | ||
788e7a89 | 784 | static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 785 | { |
006ea73e | 786 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 787 | return -EAGAIN; |
9e08a3c5 | 788 | nfs_refresh_inode(data->inode, data->res.fattr); |
788e7a89 | 789 | return 0; |
1da177e4 LT |
790 | } |
791 | ||
bdc7f021 | 792 | static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 793 | { |
bdc7f021 | 794 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; |
1da177e4 LT |
795 | } |
796 | ||
797 | static int | |
798 | nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) | |
799 | { | |
1093a60e CL |
800 | struct inode *inode = filp->f_path.dentry->d_inode; |
801 | ||
802 | return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); | |
1da177e4 LT |
803 | } |
804 | ||
509de811 | 805 | const struct nfs_rpc_ops nfs_v3_clientops = { |
1da177e4 LT |
806 | .version = 3, /* protocol version */ |
807 | .dentry_ops = &nfs_dentry_operations, | |
b7fa0554 AG |
808 | .dir_inode_ops = &nfs3_dir_inode_operations, |
809 | .file_inode_ops = &nfs3_file_inode_operations, | |
1da177e4 LT |
810 | .getroot = nfs3_proc_get_root, |
811 | .getattr = nfs3_proc_getattr, | |
812 | .setattr = nfs3_proc_setattr, | |
813 | .lookup = nfs3_proc_lookup, | |
814 | .access = nfs3_proc_access, | |
815 | .readlink = nfs3_proc_readlink, | |
1da177e4 LT |
816 | .create = nfs3_proc_create, |
817 | .remove = nfs3_proc_remove, | |
818 | .unlink_setup = nfs3_proc_unlink_setup, | |
819 | .unlink_done = nfs3_proc_unlink_done, | |
820 | .rename = nfs3_proc_rename, | |
821 | .link = nfs3_proc_link, | |
822 | .symlink = nfs3_proc_symlink, | |
823 | .mkdir = nfs3_proc_mkdir, | |
824 | .rmdir = nfs3_proc_rmdir, | |
825 | .readdir = nfs3_proc_readdir, | |
826 | .mknod = nfs3_proc_mknod, | |
827 | .statfs = nfs3_proc_statfs, | |
828 | .fsinfo = nfs3_proc_fsinfo, | |
829 | .pathconf = nfs3_proc_pathconf, | |
830 | .decode_dirent = nfs3_decode_dirent, | |
831 | .read_setup = nfs3_proc_read_setup, | |
ec06c096 | 832 | .read_done = nfs3_read_done, |
1da177e4 | 833 | .write_setup = nfs3_proc_write_setup, |
788e7a89 | 834 | .write_done = nfs3_write_done, |
1da177e4 | 835 | .commit_setup = nfs3_proc_commit_setup, |
788e7a89 | 836 | .commit_done = nfs3_commit_done, |
1da177e4 | 837 | .lock = nfs3_proc_lock, |
5c6a9f7d | 838 | .clear_acl_cache = nfs3_forget_cached_acls, |
7fe5c398 | 839 | .close_context = nfs_close_context, |
1da177e4 | 840 | }; |