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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> | |
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 | { | |
1da177e4 LT |
184 | struct nfs3_accessargs arg = { |
185 | .fh = NFS_FH(inode), | |
186 | }; | |
c407d41a | 187 | struct nfs3_accessres res; |
1da177e4 LT |
188 | struct rpc_message msg = { |
189 | .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], | |
190 | .rpc_argp = &arg, | |
191 | .rpc_resp = &res, | |
dead28da | 192 | .rpc_cred = entry->cred, |
1da177e4 LT |
193 | }; |
194 | int mode = entry->mask; | |
c407d41a | 195 | int status = -ENOMEM; |
1da177e4 LT |
196 | |
197 | dprintk("NFS call access\n"); | |
1da177e4 LT |
198 | |
199 | if (mode & MAY_READ) | |
200 | arg.access |= NFS3_ACCESS_READ; | |
201 | if (S_ISDIR(inode->i_mode)) { | |
202 | if (mode & MAY_WRITE) | |
203 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; | |
204 | if (mode & MAY_EXEC) | |
205 | arg.access |= NFS3_ACCESS_LOOKUP; | |
206 | } else { | |
207 | if (mode & MAY_WRITE) | |
208 | arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; | |
209 | if (mode & MAY_EXEC) | |
210 | arg.access |= NFS3_ACCESS_EXECUTE; | |
211 | } | |
c407d41a TM |
212 | |
213 | res.fattr = nfs_alloc_fattr(); | |
214 | if (res.fattr == NULL) | |
215 | goto out; | |
216 | ||
1da177e4 | 217 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
c407d41a | 218 | nfs_refresh_inode(inode, res.fattr); |
1da177e4 LT |
219 | if (status == 0) { |
220 | entry->mask = 0; | |
221 | if (res.access & NFS3_ACCESS_READ) | |
222 | entry->mask |= MAY_READ; | |
223 | if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) | |
224 | entry->mask |= MAY_WRITE; | |
225 | if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) | |
226 | entry->mask |= MAY_EXEC; | |
227 | } | |
c407d41a TM |
228 | nfs_free_fattr(res.fattr); |
229 | out: | |
1da177e4 LT |
230 | dprintk("NFS reply access: %d\n", status); |
231 | return status; | |
232 | } | |
233 | ||
234 | static int nfs3_proc_readlink(struct inode *inode, struct page *page, | |
235 | unsigned int pgbase, unsigned int pglen) | |
236 | { | |
237 | struct nfs_fattr fattr; | |
238 | struct nfs3_readlinkargs args = { | |
239 | .fh = NFS_FH(inode), | |
240 | .pgbase = pgbase, | |
241 | .pglen = pglen, | |
242 | .pages = &page | |
243 | }; | |
dead28da CL |
244 | struct rpc_message msg = { |
245 | .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], | |
246 | .rpc_argp = &args, | |
247 | .rpc_resp = &fattr, | |
248 | }; | |
1da177e4 LT |
249 | int status; |
250 | ||
251 | dprintk("NFS call readlink\n"); | |
0e574af1 | 252 | nfs_fattr_init(&fattr); |
dead28da | 253 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
1da177e4 LT |
254 | nfs_refresh_inode(inode, &fattr); |
255 | dprintk("NFS reply readlink: %d\n", status); | |
256 | return status; | |
257 | } | |
258 | ||
0b4aae7a TM |
259 | struct nfs3_createdata { |
260 | struct rpc_message msg; | |
261 | union { | |
262 | struct nfs3_createargs create; | |
263 | struct nfs3_mkdirargs mkdir; | |
264 | struct nfs3_symlinkargs symlink; | |
265 | struct nfs3_mknodargs mknod; | |
266 | } arg; | |
267 | struct nfs3_diropres res; | |
268 | struct nfs_fh fh; | |
269 | struct nfs_fattr fattr; | |
270 | struct nfs_fattr dir_attr; | |
271 | }; | |
272 | ||
273 | static struct nfs3_createdata *nfs3_alloc_createdata(void) | |
274 | { | |
275 | struct nfs3_createdata *data; | |
276 | ||
277 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
278 | if (data != NULL) { | |
279 | data->msg.rpc_argp = &data->arg; | |
280 | data->msg.rpc_resp = &data->res; | |
281 | data->res.fh = &data->fh; | |
282 | data->res.fattr = &data->fattr; | |
283 | data->res.dir_attr = &data->dir_attr; | |
284 | nfs_fattr_init(data->res.fattr); | |
285 | nfs_fattr_init(data->res.dir_attr); | |
286 | } | |
287 | return data; | |
288 | } | |
289 | ||
290 | static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) | |
291 | { | |
292 | int status; | |
293 | ||
294 | status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); | |
295 | nfs_post_op_update_inode(dir, data->res.dir_attr); | |
296 | if (status == 0) | |
297 | status = nfs_instantiate(dentry, data->res.fh, data->res.fattr); | |
298 | return status; | |
299 | } | |
300 | ||
301 | static void nfs3_free_createdata(struct nfs3_createdata *data) | |
302 | { | |
303 | kfree(data); | |
304 | } | |
305 | ||
1da177e4 LT |
306 | /* |
307 | * Create a regular file. | |
1da177e4 LT |
308 | */ |
309 | static int | |
310 | nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
02a913a7 | 311 | int flags, struct nameidata *nd) |
1da177e4 | 312 | { |
0b4aae7a | 313 | struct nfs3_createdata *data; |
055ffbea | 314 | mode_t mode = sattr->ia_mode; |
0b4aae7a | 315 | int status = -ENOMEM; |
1da177e4 LT |
316 | |
317 | dprintk("NFS call create %s\n", dentry->d_name.name); | |
0b4aae7a TM |
318 | |
319 | data = nfs3_alloc_createdata(); | |
320 | if (data == NULL) | |
321 | goto out; | |
322 | ||
323 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; | |
324 | data->arg.create.fh = NFS_FH(dir); | |
325 | data->arg.create.name = dentry->d_name.name; | |
326 | data->arg.create.len = dentry->d_name.len; | |
327 | data->arg.create.sattr = sattr; | |
328 | ||
329 | data->arg.create.createmode = NFS3_CREATE_UNCHECKED; | |
1da177e4 | 330 | if (flags & O_EXCL) { |
0b4aae7a TM |
331 | data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; |
332 | data->arg.create.verifier[0] = jiffies; | |
333 | data->arg.create.verifier[1] = current->pid; | |
1da177e4 LT |
334 | } |
335 | ||
ce3b0f8d | 336 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 337 | |
0b4aae7a TM |
338 | for (;;) { |
339 | status = nfs3_do_create(dir, dentry, data); | |
1da177e4 | 340 | |
0b4aae7a TM |
341 | if (status != -ENOTSUPP) |
342 | break; | |
343 | /* If the server doesn't support the exclusive creation | |
344 | * semantics, try again with simple 'guarded' mode. */ | |
345 | switch (data->arg.create.createmode) { | |
1da177e4 | 346 | case NFS3_CREATE_EXCLUSIVE: |
0b4aae7a | 347 | data->arg.create.createmode = NFS3_CREATE_GUARDED; |
1da177e4 LT |
348 | break; |
349 | ||
350 | case NFS3_CREATE_GUARDED: | |
0b4aae7a | 351 | data->arg.create.createmode = NFS3_CREATE_UNCHECKED; |
1da177e4 LT |
352 | break; |
353 | ||
354 | case NFS3_CREATE_UNCHECKED: | |
355 | goto out; | |
356 | } | |
0b4aae7a TM |
357 | nfs_fattr_init(data->res.dir_attr); |
358 | nfs_fattr_init(data->res.fattr); | |
1da177e4 LT |
359 | } |
360 | ||
1da177e4 LT |
361 | if (status != 0) |
362 | goto out; | |
363 | ||
364 | /* When we created the file with exclusive semantics, make | |
365 | * sure we set the attributes afterwards. */ | |
0b4aae7a | 366 | if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { |
1da177e4 LT |
367 | dprintk("NFS call setattr (post-create)\n"); |
368 | ||
369 | if (!(sattr->ia_valid & ATTR_ATIME_SET)) | |
370 | sattr->ia_valid |= ATTR_ATIME; | |
371 | if (!(sattr->ia_valid & ATTR_MTIME_SET)) | |
372 | sattr->ia_valid |= ATTR_MTIME; | |
373 | ||
374 | /* Note: we could use a guarded setattr here, but I'm | |
375 | * not sure this buys us anything (and I'd have | |
376 | * to revamp the NFSv3 XDR code) */ | |
0b4aae7a TM |
377 | status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); |
378 | nfs_post_op_update_inode(dentry->d_inode, data->res.fattr); | |
1da177e4 | 379 | dprintk("NFS reply setattr (post-create): %d\n", status); |
0b4aae7a TM |
380 | if (status != 0) |
381 | goto out; | |
1da177e4 | 382 | } |
055ffbea | 383 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); |
1da177e4 | 384 | out: |
0b4aae7a | 385 | nfs3_free_createdata(data); |
1da177e4 LT |
386 | dprintk("NFS reply create: %d\n", status); |
387 | return status; | |
388 | } | |
389 | ||
390 | static int | |
391 | nfs3_proc_remove(struct inode *dir, struct qstr *name) | |
392 | { | |
4fdc17b2 TM |
393 | struct nfs_removeargs arg = { |
394 | .fh = NFS_FH(dir), | |
395 | .name.len = name->len, | |
396 | .name.name = name->name, | |
1da177e4 | 397 | }; |
4fdc17b2 TM |
398 | struct nfs_removeres res; |
399 | struct rpc_message msg = { | |
400 | .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], | |
401 | .rpc_argp = &arg, | |
402 | .rpc_resp = &res, | |
1da177e4 LT |
403 | }; |
404 | int status; | |
405 | ||
406 | dprintk("NFS call remove %s\n", name->name); | |
4fdc17b2 | 407 | nfs_fattr_init(&res.dir_attr); |
1da177e4 | 408 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
4fdc17b2 | 409 | nfs_post_op_update_inode(dir, &res.dir_attr); |
1da177e4 LT |
410 | dprintk("NFS reply remove: %d\n", status); |
411 | return status; | |
412 | } | |
413 | ||
e4eff1a6 TM |
414 | static void |
415 | nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) | |
1da177e4 | 416 | { |
1da177e4 | 417 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; |
1da177e4 LT |
418 | } |
419 | ||
420 | static int | |
e4eff1a6 | 421 | nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) |
1da177e4 | 422 | { |
e4eff1a6 TM |
423 | struct nfs_removeres *res; |
424 | if (nfs3_async_handle_jukebox(task, dir)) | |
425 | return 0; | |
426 | res = task->tk_msg.rpc_resp; | |
427 | nfs_post_op_update_inode(dir, &res->dir_attr); | |
428 | return 1; | |
1da177e4 LT |
429 | } |
430 | ||
431 | static int | |
432 | nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, | |
433 | struct inode *new_dir, struct qstr *new_name) | |
434 | { | |
435 | struct nfs_fattr old_dir_attr, new_dir_attr; | |
436 | struct nfs3_renameargs arg = { | |
437 | .fromfh = NFS_FH(old_dir), | |
438 | .fromname = old_name->name, | |
439 | .fromlen = old_name->len, | |
440 | .tofh = NFS_FH(new_dir), | |
441 | .toname = new_name->name, | |
442 | .tolen = new_name->len | |
443 | }; | |
444 | struct nfs3_renameres res = { | |
445 | .fromattr = &old_dir_attr, | |
446 | .toattr = &new_dir_attr | |
447 | }; | |
dead28da CL |
448 | struct rpc_message msg = { |
449 | .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], | |
450 | .rpc_argp = &arg, | |
451 | .rpc_resp = &res, | |
452 | }; | |
1da177e4 LT |
453 | int status; |
454 | ||
455 | dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); | |
0e574af1 TM |
456 | nfs_fattr_init(&old_dir_attr); |
457 | nfs_fattr_init(&new_dir_attr); | |
dead28da | 458 | status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); |
decf491f TM |
459 | nfs_post_op_update_inode(old_dir, &old_dir_attr); |
460 | nfs_post_op_update_inode(new_dir, &new_dir_attr); | |
1da177e4 LT |
461 | dprintk("NFS reply rename: %d\n", status); |
462 | return status; | |
463 | } | |
464 | ||
465 | static int | |
466 | nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) | |
467 | { | |
468 | struct nfs_fattr dir_attr, fattr; | |
469 | struct nfs3_linkargs arg = { | |
470 | .fromfh = NFS_FH(inode), | |
471 | .tofh = NFS_FH(dir), | |
472 | .toname = name->name, | |
473 | .tolen = name->len | |
474 | }; | |
475 | struct nfs3_linkres res = { | |
476 | .dir_attr = &dir_attr, | |
477 | .fattr = &fattr | |
478 | }; | |
dead28da CL |
479 | struct rpc_message msg = { |
480 | .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], | |
481 | .rpc_argp = &arg, | |
482 | .rpc_resp = &res, | |
483 | }; | |
1da177e4 LT |
484 | int status; |
485 | ||
486 | dprintk("NFS call link %s\n", name->name); | |
0e574af1 TM |
487 | nfs_fattr_init(&dir_attr); |
488 | nfs_fattr_init(&fattr); | |
dead28da | 489 | status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); |
decf491f TM |
490 | nfs_post_op_update_inode(dir, &dir_attr); |
491 | nfs_post_op_update_inode(inode, &fattr); | |
1da177e4 LT |
492 | dprintk("NFS reply link: %d\n", status); |
493 | return status; | |
494 | } | |
495 | ||
496 | static int | |
94a6d753 CL |
497 | nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, |
498 | unsigned int len, struct iattr *sattr) | |
1da177e4 | 499 | { |
0b4aae7a TM |
500 | struct nfs3_createdata *data; |
501 | int status = -ENOMEM; | |
1da177e4 | 502 | |
94a6d753 | 503 | if (len > NFS3_MAXPATHLEN) |
1da177e4 | 504 | return -ENAMETOOLONG; |
4f390c15 | 505 | |
94a6d753 CL |
506 | dprintk("NFS call symlink %s\n", dentry->d_name.name); |
507 | ||
0b4aae7a TM |
508 | data = nfs3_alloc_createdata(); |
509 | if (data == NULL) | |
4f390c15 | 510 | goto out; |
0b4aae7a TM |
511 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; |
512 | data->arg.symlink.fromfh = NFS_FH(dir); | |
513 | data->arg.symlink.fromname = dentry->d_name.name; | |
514 | data->arg.symlink.fromlen = dentry->d_name.len; | |
515 | data->arg.symlink.pages = &page; | |
516 | data->arg.symlink.pathlen = len; | |
517 | data->arg.symlink.sattr = sattr; | |
518 | ||
519 | status = nfs3_do_create(dir, dentry, data); | |
520 | ||
521 | nfs3_free_createdata(data); | |
4f390c15 | 522 | out: |
1da177e4 LT |
523 | dprintk("NFS reply symlink: %d\n", status); |
524 | return status; | |
525 | } | |
526 | ||
527 | static int | |
528 | nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) | |
529 | { | |
0b4aae7a | 530 | struct nfs3_createdata *data; |
055ffbea | 531 | int mode = sattr->ia_mode; |
0b4aae7a | 532 | int status = -ENOMEM; |
1da177e4 LT |
533 | |
534 | dprintk("NFS call mkdir %s\n", dentry->d_name.name); | |
055ffbea | 535 | |
ce3b0f8d | 536 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 537 | |
0b4aae7a TM |
538 | data = nfs3_alloc_createdata(); |
539 | if (data == NULL) | |
055ffbea | 540 | goto out; |
0b4aae7a TM |
541 | |
542 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; | |
543 | data->arg.mkdir.fh = NFS_FH(dir); | |
544 | data->arg.mkdir.name = dentry->d_name.name; | |
545 | data->arg.mkdir.len = dentry->d_name.len; | |
546 | data->arg.mkdir.sattr = sattr; | |
547 | ||
548 | status = nfs3_do_create(dir, dentry, data); | |
055ffbea AG |
549 | if (status != 0) |
550 | goto out; | |
0b4aae7a | 551 | |
055ffbea AG |
552 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); |
553 | out: | |
0b4aae7a | 554 | nfs3_free_createdata(data); |
1da177e4 LT |
555 | dprintk("NFS reply mkdir: %d\n", status); |
556 | return status; | |
557 | } | |
558 | ||
559 | static int | |
560 | nfs3_proc_rmdir(struct inode *dir, struct qstr *name) | |
561 | { | |
562 | struct nfs_fattr dir_attr; | |
563 | struct nfs3_diropargs arg = { | |
564 | .fh = NFS_FH(dir), | |
565 | .name = name->name, | |
566 | .len = name->len | |
567 | }; | |
dead28da CL |
568 | struct rpc_message msg = { |
569 | .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], | |
570 | .rpc_argp = &arg, | |
571 | .rpc_resp = &dir_attr, | |
572 | }; | |
1da177e4 LT |
573 | int status; |
574 | ||
575 | dprintk("NFS call rmdir %s\n", name->name); | |
0e574af1 | 576 | nfs_fattr_init(&dir_attr); |
dead28da | 577 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
decf491f | 578 | nfs_post_op_update_inode(dir, &dir_attr); |
1da177e4 LT |
579 | dprintk("NFS reply rmdir: %d\n", status); |
580 | return status; | |
581 | } | |
582 | ||
583 | /* | |
584 | * The READDIR implementation is somewhat hackish - we pass the user buffer | |
585 | * to the encode function, which installs it in the receive iovec. | |
586 | * The decode function itself doesn't perform any decoding, it just makes | |
587 | * sure the reply is syntactically correct. | |
588 | * | |
589 | * Also note that this implementation handles both plain readdir and | |
590 | * readdirplus. | |
591 | */ | |
592 | static int | |
593 | nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, | |
594 | u64 cookie, struct page *page, unsigned int count, int plus) | |
595 | { | |
596 | struct inode *dir = dentry->d_inode; | |
597 | struct nfs_fattr dir_attr; | |
bc4785cd | 598 | __be32 *verf = NFS_COOKIEVERF(dir); |
1da177e4 LT |
599 | struct nfs3_readdirargs arg = { |
600 | .fh = NFS_FH(dir), | |
601 | .cookie = cookie, | |
602 | .verf = {verf[0], verf[1]}, | |
603 | .plus = plus, | |
604 | .count = count, | |
605 | .pages = &page | |
606 | }; | |
607 | struct nfs3_readdirres res = { | |
608 | .dir_attr = &dir_attr, | |
609 | .verf = verf, | |
610 | .plus = plus | |
611 | }; | |
612 | struct rpc_message msg = { | |
613 | .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], | |
614 | .rpc_argp = &arg, | |
615 | .rpc_resp = &res, | |
616 | .rpc_cred = cred | |
617 | }; | |
618 | int status; | |
619 | ||
1da177e4 LT |
620 | if (plus) |
621 | msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; | |
622 | ||
623 | dprintk("NFS call readdir%s %d\n", | |
624 | plus? "plus" : "", (unsigned int) cookie); | |
625 | ||
0e574af1 | 626 | nfs_fattr_init(&dir_attr); |
1da177e4 | 627 | status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); |
c4812998 TM |
628 | |
629 | nfs_invalidate_atime(dir); | |
630 | ||
1da177e4 LT |
631 | nfs_refresh_inode(dir, &dir_attr); |
632 | dprintk("NFS reply readdir: %d\n", status); | |
1da177e4 LT |
633 | return status; |
634 | } | |
635 | ||
636 | static int | |
637 | nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, | |
638 | dev_t rdev) | |
639 | { | |
0b4aae7a | 640 | struct nfs3_createdata *data; |
055ffbea | 641 | mode_t mode = sattr->ia_mode; |
0b4aae7a | 642 | int status = -ENOMEM; |
1da177e4 LT |
643 | |
644 | dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, | |
645 | MAJOR(rdev), MINOR(rdev)); | |
055ffbea | 646 | |
ce3b0f8d | 647 | sattr->ia_mode &= ~current_umask(); |
055ffbea | 648 | |
0b4aae7a TM |
649 | data = nfs3_alloc_createdata(); |
650 | if (data == NULL) | |
055ffbea | 651 | goto out; |
0b4aae7a TM |
652 | |
653 | data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; | |
654 | data->arg.mknod.fh = NFS_FH(dir); | |
655 | data->arg.mknod.name = dentry->d_name.name; | |
656 | data->arg.mknod.len = dentry->d_name.len; | |
657 | data->arg.mknod.sattr = sattr; | |
658 | data->arg.mknod.rdev = rdev; | |
659 | ||
660 | switch (sattr->ia_mode & S_IFMT) { | |
661 | case S_IFBLK: | |
662 | data->arg.mknod.type = NF3BLK; | |
663 | break; | |
664 | case S_IFCHR: | |
665 | data->arg.mknod.type = NF3CHR; | |
666 | break; | |
667 | case S_IFIFO: | |
668 | data->arg.mknod.type = NF3FIFO; | |
669 | break; | |
670 | case S_IFSOCK: | |
671 | data->arg.mknod.type = NF3SOCK; | |
672 | break; | |
673 | default: | |
674 | status = -EINVAL; | |
675 | goto out; | |
676 | } | |
677 | ||
678 | status = nfs3_do_create(dir, dentry, data); | |
055ffbea AG |
679 | if (status != 0) |
680 | goto out; | |
681 | status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); | |
682 | out: | |
0b4aae7a | 683 | nfs3_free_createdata(data); |
1da177e4 LT |
684 | dprintk("NFS reply mknod: %d\n", status); |
685 | return status; | |
686 | } | |
687 | ||
688 | static int | |
689 | nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, | |
690 | struct nfs_fsstat *stat) | |
691 | { | |
dead28da CL |
692 | struct rpc_message msg = { |
693 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], | |
694 | .rpc_argp = fhandle, | |
695 | .rpc_resp = stat, | |
696 | }; | |
1da177e4 LT |
697 | int status; |
698 | ||
699 | dprintk("NFS call fsstat\n"); | |
0e574af1 | 700 | nfs_fattr_init(stat->fattr); |
dead28da | 701 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
702 | dprintk("NFS reply statfs: %d\n", status); |
703 | return status; | |
704 | } | |
705 | ||
706 | static int | |
37ca8f5c | 707 | do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, |
1da177e4 LT |
708 | struct nfs_fsinfo *info) |
709 | { | |
dead28da CL |
710 | struct rpc_message msg = { |
711 | .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], | |
712 | .rpc_argp = fhandle, | |
713 | .rpc_resp = info, | |
714 | }; | |
1da177e4 LT |
715 | int status; |
716 | ||
717 | dprintk("NFS call fsinfo\n"); | |
0e574af1 | 718 | nfs_fattr_init(info->fattr); |
37ca8f5c | 719 | status = rpc_call_sync(client, &msg, 0); |
1da177e4 LT |
720 | dprintk("NFS reply fsinfo: %d\n", status); |
721 | return status; | |
722 | } | |
723 | ||
37ca8f5c EK |
724 | /* |
725 | * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via | |
726 | * nfs_create_server | |
727 | */ | |
728 | static int | |
729 | nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, | |
730 | struct nfs_fsinfo *info) | |
731 | { | |
732 | int status; | |
733 | ||
734 | status = do_proc_fsinfo(server->client, fhandle, info); | |
735 | if (status && server->nfs_client->cl_rpcclient != server->client) | |
736 | status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); | |
737 | return status; | |
738 | } | |
739 | ||
1da177e4 LT |
740 | static int |
741 | nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, | |
742 | struct nfs_pathconf *info) | |
743 | { | |
dead28da CL |
744 | struct rpc_message msg = { |
745 | .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], | |
746 | .rpc_argp = fhandle, | |
747 | .rpc_resp = info, | |
748 | }; | |
1da177e4 LT |
749 | int status; |
750 | ||
751 | dprintk("NFS call pathconf\n"); | |
0e574af1 | 752 | nfs_fattr_init(info->fattr); |
dead28da | 753 | status = rpc_call_sync(server->client, &msg, 0); |
1da177e4 LT |
754 | dprintk("NFS reply pathconf: %d\n", status); |
755 | return status; | |
756 | } | |
757 | ||
ec06c096 | 758 | static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) |
1da177e4 | 759 | { |
006ea73e | 760 | if (nfs3_async_handle_jukebox(task, data->inode)) |
ec06c096 | 761 | return -EAGAIN; |
8850df99 TM |
762 | |
763 | nfs_invalidate_atime(data->inode); | |
764 | nfs_refresh_inode(data->inode, &data->fattr); | |
ec06c096 | 765 | return 0; |
1da177e4 LT |
766 | } |
767 | ||
bdc7f021 | 768 | static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) |
1da177e4 | 769 | { |
bdc7f021 | 770 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; |
1da177e4 LT |
771 | } |
772 | ||
788e7a89 | 773 | static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 774 | { |
006ea73e | 775 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 776 | return -EAGAIN; |
1da177e4 | 777 | if (task->tk_status >= 0) |
70ca8852 | 778 | nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); |
788e7a89 | 779 | return 0; |
1da177e4 LT |
780 | } |
781 | ||
bdc7f021 | 782 | static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 783 | { |
bdc7f021 | 784 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; |
1da177e4 LT |
785 | } |
786 | ||
788e7a89 | 787 | static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) |
1da177e4 | 788 | { |
006ea73e | 789 | if (nfs3_async_handle_jukebox(task, data->inode)) |
788e7a89 | 790 | return -EAGAIN; |
9e08a3c5 | 791 | nfs_refresh_inode(data->inode, data->res.fattr); |
788e7a89 | 792 | return 0; |
1da177e4 LT |
793 | } |
794 | ||
bdc7f021 | 795 | static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) |
1da177e4 | 796 | { |
bdc7f021 | 797 | msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; |
1da177e4 LT |
798 | } |
799 | ||
800 | static int | |
801 | nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) | |
802 | { | |
1093a60e CL |
803 | struct inode *inode = filp->f_path.dentry->d_inode; |
804 | ||
805 | return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); | |
1da177e4 LT |
806 | } |
807 | ||
509de811 | 808 | const struct nfs_rpc_ops nfs_v3_clientops = { |
1da177e4 LT |
809 | .version = 3, /* protocol version */ |
810 | .dentry_ops = &nfs_dentry_operations, | |
b7fa0554 AG |
811 | .dir_inode_ops = &nfs3_dir_inode_operations, |
812 | .file_inode_ops = &nfs3_file_inode_operations, | |
1da177e4 LT |
813 | .getroot = nfs3_proc_get_root, |
814 | .getattr = nfs3_proc_getattr, | |
815 | .setattr = nfs3_proc_setattr, | |
816 | .lookup = nfs3_proc_lookup, | |
817 | .access = nfs3_proc_access, | |
818 | .readlink = nfs3_proc_readlink, | |
1da177e4 LT |
819 | .create = nfs3_proc_create, |
820 | .remove = nfs3_proc_remove, | |
821 | .unlink_setup = nfs3_proc_unlink_setup, | |
822 | .unlink_done = nfs3_proc_unlink_done, | |
823 | .rename = nfs3_proc_rename, | |
824 | .link = nfs3_proc_link, | |
825 | .symlink = nfs3_proc_symlink, | |
826 | .mkdir = nfs3_proc_mkdir, | |
827 | .rmdir = nfs3_proc_rmdir, | |
828 | .readdir = nfs3_proc_readdir, | |
829 | .mknod = nfs3_proc_mknod, | |
830 | .statfs = nfs3_proc_statfs, | |
831 | .fsinfo = nfs3_proc_fsinfo, | |
832 | .pathconf = nfs3_proc_pathconf, | |
833 | .decode_dirent = nfs3_decode_dirent, | |
834 | .read_setup = nfs3_proc_read_setup, | |
ec06c096 | 835 | .read_done = nfs3_read_done, |
1da177e4 | 836 | .write_setup = nfs3_proc_write_setup, |
788e7a89 | 837 | .write_done = nfs3_write_done, |
1da177e4 | 838 | .commit_setup = nfs3_proc_commit_setup, |
788e7a89 | 839 | .commit_done = nfs3_commit_done, |
1da177e4 | 840 | .lock = nfs3_proc_lock, |
5c6a9f7d | 841 | .clear_acl_cache = nfs3_forget_cached_acls, |
7fe5c398 | 842 | .close_context = nfs_close_context, |
1da177e4 | 843 | }; |