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1 | /* |
2 | * linux/fs/nfs/nfs3xdr.c |
3 | * |
4 | * XDR functions to encode/decode NFSv3 RPC arguments and results. |
5 | * |
6 | * Copyright (C) 1996, 1997 Olaf Kirch |
7 | */ |
8 | |
9 | #include <linux/param.h> |
10 | #include <linux/time.h> |
11 | #include <linux/mm.h> |
12 | #include <linux/slab.h> |
13 | #include <linux/utsname.h> |
14 | #include <linux/errno.h> |
15 | #include <linux/string.h> |
16 | #include <linux/in.h> |
17 | #include <linux/pagemap.h> |
18 | #include <linux/proc_fs.h> |
19 | #include <linux/kdev_t.h> |
20 | #include <linux/sunrpc/clnt.h> |
21 | #include <linux/nfs.h> |
22 | #include <linux/nfs3.h> |
23 | #include <linux/nfs_fs.h> |
24 | #include <linux/nfsacl.h> |
25 | #include "internal.h" |
26 | |
27 | #define NFSDBG_FACILITY NFSDBG_XDR |
28 | |
29 | /* Mapping from NFS error code to "errno" error code. */ |
30 | #define errno_NFSERR_IO EIO |
31 | |
32 | /* |
33 | * Declare the space requirements for NFS arguments and replies as |
34 | * number of 32bit-words |
35 | */ |
36 | #define NFS3_fhandle_sz (1+16) |
37 | #define NFS3_fh_sz (NFS3_fhandle_sz) /* shorthand */ |
38 | #define NFS3_sattr_sz (15) |
39 | #define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2)) |
40 | #define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2)) |
41 | #define NFS3_fattr_sz (21) |
42 | #define NFS3_wcc_attr_sz (6) |
43 | #define NFS3_pre_op_attr_sz (1+NFS3_wcc_attr_sz) |
44 | #define NFS3_post_op_attr_sz (1+NFS3_fattr_sz) |
45 | #define NFS3_wcc_data_sz (NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz) |
46 | #define NFS3_fsstat_sz |
47 | #define NFS3_fsinfo_sz |
48 | #define NFS3_pathconf_sz |
49 | #define NFS3_entry_sz (NFS3_filename_sz+3) |
50 | |
51 | #define NFS3_sattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3) |
52 | #define NFS3_diropargs_sz (NFS3_fh_sz+NFS3_filename_sz) |
53 | #define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz) |
54 | #define NFS3_accessargs_sz (NFS3_fh_sz+1) |
55 | #define NFS3_readlinkargs_sz (NFS3_fh_sz) |
56 | #define NFS3_readargs_sz (NFS3_fh_sz+3) |
57 | #define NFS3_writeargs_sz (NFS3_fh_sz+5) |
58 | #define NFS3_createargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz) |
59 | #define NFS3_mkdirargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz) |
60 | #define NFS3_symlinkargs_sz (NFS3_diropargs_sz+1+NFS3_sattr_sz) |
61 | #define NFS3_mknodargs_sz (NFS3_diropargs_sz+2+NFS3_sattr_sz) |
62 | #define NFS3_renameargs_sz (NFS3_diropargs_sz+NFS3_diropargs_sz) |
63 | #define NFS3_linkargs_sz (NFS3_fh_sz+NFS3_diropargs_sz) |
64 | #define NFS3_readdirargs_sz (NFS3_fh_sz+2) |
65 | #define NFS3_commitargs_sz (NFS3_fh_sz+3) |
66 | |
67 | #define NFS3_attrstat_sz (1+NFS3_fattr_sz) |
68 | #define NFS3_wccstat_sz (1+NFS3_wcc_data_sz) |
69 | #define NFS3_removeres_sz (NFS3_wccstat_sz) |
70 | #define NFS3_lookupres_sz (1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz)) |
71 | #define NFS3_accessres_sz (1+NFS3_post_op_attr_sz+1) |
72 | #define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1) |
73 | #define NFS3_readres_sz (1+NFS3_post_op_attr_sz+3) |
74 | #define NFS3_writeres_sz (1+NFS3_wcc_data_sz+4) |
75 | #define NFS3_createres_sz (1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) |
76 | #define NFS3_renameres_sz (1+(2 * NFS3_wcc_data_sz)) |
77 | #define NFS3_linkres_sz (1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) |
78 | #define NFS3_readdirres_sz (1+NFS3_post_op_attr_sz+2) |
79 | #define NFS3_fsstatres_sz (1+NFS3_post_op_attr_sz+13) |
80 | #define NFS3_fsinfores_sz (1+NFS3_post_op_attr_sz+12) |
81 | #define NFS3_pathconfres_sz (1+NFS3_post_op_attr_sz+6) |
82 | #define NFS3_commitres_sz (1+NFS3_wcc_data_sz+2) |
83 | |
84 | #define ACL3_getaclargs_sz (NFS3_fh_sz+1) |
85 | #define ACL3_setaclargs_sz (NFS3_fh_sz+1+ \ |
86 | XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE)) |
87 | #define ACL3_getaclres_sz (1+NFS3_post_op_attr_sz+1+ \ |
88 | XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE)) |
89 | #define ACL3_setaclres_sz (1+NFS3_post_op_attr_sz) |
90 | |
91 | /* |
92 | * Map file type to S_IFMT bits |
93 | */ |
94 | static const umode_t nfs_type2fmt[] = { |
95 | [NF3BAD] = 0, |
96 | [NF3REG] = S_IFREG, |
97 | [NF3DIR] = S_IFDIR, |
98 | [NF3BLK] = S_IFBLK, |
99 | [NF3CHR] = S_IFCHR, |
100 | [NF3LNK] = S_IFLNK, |
101 | [NF3SOCK] = S_IFSOCK, |
102 | [NF3FIFO] = S_IFIFO, |
103 | }; |
104 | |
105 | /* |
106 | * Common NFS XDR functions as inlines |
107 | */ |
108 | static inline __be32 * |
109 | xdr_encode_fhandle(__be32 *p, const struct nfs_fh *fh) |
110 | { |
111 | return xdr_encode_array(p, fh->data, fh->size); |
112 | } |
113 | |
114 | static inline __be32 * |
115 | xdr_decode_fhandle(__be32 *p, struct nfs_fh *fh) |
116 | { |
117 | if ((fh->size = ntohl(*p++)) <= NFS3_FHSIZE) { |
118 | memcpy(fh->data, p, fh->size); |
119 | return p + XDR_QUADLEN(fh->size); |
120 | } |
121 | return NULL; |
122 | } |
123 | |
124 | /* |
125 | * Encode/decode time. |
126 | */ |
127 | static inline __be32 * |
128 | xdr_encode_time3(__be32 *p, struct timespec *timep) |
129 | { |
130 | *p++ = htonl(timep->tv_sec); |
131 | *p++ = htonl(timep->tv_nsec); |
132 | return p; |
133 | } |
134 | |
135 | static inline __be32 * |
136 | xdr_decode_time3(__be32 *p, struct timespec *timep) |
137 | { |
138 | timep->tv_sec = ntohl(*p++); |
139 | timep->tv_nsec = ntohl(*p++); |
140 | return p; |
141 | } |
142 | |
143 | static __be32 * |
144 | xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr) |
145 | { |
146 | unsigned int type, major, minor; |
147 | umode_t fmode; |
148 | |
149 | type = ntohl(*p++); |
150 | if (type > NF3FIFO) |
151 | type = NF3NON; |
152 | fmode = nfs_type2fmt[type]; |
153 | fattr->mode = (ntohl(*p++) & ~S_IFMT) | fmode; |
154 | fattr->nlink = ntohl(*p++); |
155 | fattr->uid = ntohl(*p++); |
156 | fattr->gid = ntohl(*p++); |
157 | p = xdr_decode_hyper(p, &fattr->size); |
158 | p = xdr_decode_hyper(p, &fattr->du.nfs3.used); |
159 | |
160 | /* Turn remote device info into Linux-specific dev_t */ |
161 | major = ntohl(*p++); |
162 | minor = ntohl(*p++); |
163 | fattr->rdev = MKDEV(major, minor); |
164 | if (MAJOR(fattr->rdev) != major || MINOR(fattr->rdev) != minor) |
165 | fattr->rdev = 0; |
166 | |
167 | p = xdr_decode_hyper(p, &fattr->fsid.major); |
168 | fattr->fsid.minor = 0; |
169 | p = xdr_decode_hyper(p, &fattr->fileid); |
170 | p = xdr_decode_time3(p, &fattr->atime); |
171 | p = xdr_decode_time3(p, &fattr->mtime); |
172 | p = xdr_decode_time3(p, &fattr->ctime); |
173 | |
174 | /* Update the mode bits */ |
175 | fattr->valid |= NFS_ATTR_FATTR_V3; |
176 | return p; |
177 | } |
178 | |
179 | static inline __be32 * |
180 | xdr_encode_sattr(__be32 *p, struct iattr *attr) |
181 | { |
182 | if (attr->ia_valid & ATTR_MODE) { |
183 | *p++ = xdr_one; |
184 | *p++ = htonl(attr->ia_mode & S_IALLUGO); |
185 | } else { |
186 | *p++ = xdr_zero; |
187 | } |
188 | if (attr->ia_valid & ATTR_UID) { |
189 | *p++ = xdr_one; |
190 | *p++ = htonl(attr->ia_uid); |
191 | } else { |
192 | *p++ = xdr_zero; |
193 | } |
194 | if (attr->ia_valid & ATTR_GID) { |
195 | *p++ = xdr_one; |
196 | *p++ = htonl(attr->ia_gid); |
197 | } else { |
198 | *p++ = xdr_zero; |
199 | } |
200 | if (attr->ia_valid & ATTR_SIZE) { |
201 | *p++ = xdr_one; |
202 | p = xdr_encode_hyper(p, (__u64) attr->ia_size); |
203 | } else { |
204 | *p++ = xdr_zero; |
205 | } |
206 | if (attr->ia_valid & ATTR_ATIME_SET) { |
207 | *p++ = xdr_two; |
208 | p = xdr_encode_time3(p, &attr->ia_atime); |
209 | } else if (attr->ia_valid & ATTR_ATIME) { |
210 | *p++ = xdr_one; |
211 | } else { |
212 | *p++ = xdr_zero; |
213 | } |
214 | if (attr->ia_valid & ATTR_MTIME_SET) { |
215 | *p++ = xdr_two; |
216 | p = xdr_encode_time3(p, &attr->ia_mtime); |
217 | } else if (attr->ia_valid & ATTR_MTIME) { |
218 | *p++ = xdr_one; |
219 | } else { |
220 | *p++ = xdr_zero; |
221 | } |
222 | return p; |
223 | } |
224 | |
225 | static inline __be32 * |
226 | xdr_decode_wcc_attr(__be32 *p, struct nfs_fattr *fattr) |
227 | { |
228 | p = xdr_decode_hyper(p, &fattr->pre_size); |
229 | p = xdr_decode_time3(p, &fattr->pre_mtime); |
230 | p = xdr_decode_time3(p, &fattr->pre_ctime); |
231 | fattr->valid |= NFS_ATTR_FATTR_PRESIZE |
232 | | NFS_ATTR_FATTR_PREMTIME |
233 | | NFS_ATTR_FATTR_PRECTIME; |
234 | return p; |
235 | } |
236 | |
237 | static inline __be32 * |
238 | xdr_decode_post_op_attr(__be32 *p, struct nfs_fattr *fattr) |
239 | { |
240 | if (*p++) |
241 | p = xdr_decode_fattr(p, fattr); |
242 | return p; |
243 | } |
244 | |
245 | static inline __be32 * |
246 | xdr_decode_pre_op_attr(__be32 *p, struct nfs_fattr *fattr) |
247 | { |
248 | if (*p++) |
249 | return xdr_decode_wcc_attr(p, fattr); |
250 | return p; |
251 | } |
252 | |
253 | |
254 | static inline __be32 * |
255 | xdr_decode_wcc_data(__be32 *p, struct nfs_fattr *fattr) |
256 | { |
257 | p = xdr_decode_pre_op_attr(p, fattr); |
258 | return xdr_decode_post_op_attr(p, fattr); |
259 | } |
260 | |
261 | /* |
262 | * NFS encode functions |
263 | */ |
264 | |
265 | /* |
266 | * Encode file handle argument |
267 | */ |
268 | static int |
269 | nfs3_xdr_fhandle(struct rpc_rqst *req, __be32 *p, struct nfs_fh *fh) |
270 | { |
271 | p = xdr_encode_fhandle(p, fh); |
272 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
273 | return 0; |
274 | } |
275 | |
276 | /* |
277 | * Encode SETATTR arguments |
278 | */ |
279 | static int |
280 | nfs3_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs3_sattrargs *args) |
281 | { |
282 | p = xdr_encode_fhandle(p, args->fh); |
283 | p = xdr_encode_sattr(p, args->sattr); |
284 | *p++ = htonl(args->guard); |
285 | if (args->guard) |
286 | p = xdr_encode_time3(p, &args->guardtime); |
287 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
288 | return 0; |
289 | } |
290 | |
291 | /* |
292 | * Encode directory ops argument |
293 | */ |
294 | static int |
295 | nfs3_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs3_diropargs *args) |
296 | { |
297 | p = xdr_encode_fhandle(p, args->fh); |
298 | p = xdr_encode_array(p, args->name, args->len); |
299 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
300 | return 0; |
301 | } |
302 | |
303 | /* |
304 | * Encode REMOVE argument |
305 | */ |
306 | static int |
307 | nfs3_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
308 | { |
309 | p = xdr_encode_fhandle(p, args->fh); |
310 | p = xdr_encode_array(p, args->name.name, args->name.len); |
311 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
312 | return 0; |
313 | } |
314 | |
315 | /* |
316 | * Encode access() argument |
317 | */ |
318 | static int |
319 | nfs3_xdr_accessargs(struct rpc_rqst *req, __be32 *p, struct nfs3_accessargs *args) |
320 | { |
321 | p = xdr_encode_fhandle(p, args->fh); |
322 | *p++ = htonl(args->access); |
323 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
324 | return 0; |
325 | } |
326 | |
327 | /* |
328 | * Arguments to a READ call. Since we read data directly into the page |
329 | * cache, we also set up the reply iovec here so that iov[1] points |
330 | * exactly to the page we want to fetch. |
331 | */ |
332 | static int |
333 | nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
334 | { |
335 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
336 | unsigned int replen; |
337 | u32 count = args->count; |
338 | |
339 | p = xdr_encode_fhandle(p, args->fh); |
340 | p = xdr_encode_hyper(p, args->offset); |
341 | *p++ = htonl(count); |
342 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
343 | |
344 | /* Inline the page array */ |
345 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readres_sz) << 2; |
346 | xdr_inline_pages(&req->rq_rcv_buf, replen, |
347 | args->pages, args->pgbase, count); |
348 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
349 | return 0; |
350 | } |
351 | |
352 | /* |
353 | * Write arguments. Splice the buffer to be written into the iovec. |
354 | */ |
355 | static int |
356 | nfs3_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
357 | { |
358 | struct xdr_buf *sndbuf = &req->rq_snd_buf; |
359 | u32 count = args->count; |
360 | |
361 | p = xdr_encode_fhandle(p, args->fh); |
362 | p = xdr_encode_hyper(p, args->offset); |
363 | *p++ = htonl(count); |
364 | *p++ = htonl(args->stable); |
365 | *p++ = htonl(count); |
366 | sndbuf->len = xdr_adjust_iovec(sndbuf->head, p); |
367 | |
368 | /* Copy the page array */ |
369 | xdr_encode_pages(sndbuf, args->pages, args->pgbase, count); |
370 | sndbuf->flags |= XDRBUF_WRITE; |
371 | return 0; |
372 | } |
373 | |
374 | /* |
375 | * Encode CREATE arguments |
376 | */ |
377 | static int |
378 | nfs3_xdr_createargs(struct rpc_rqst *req, __be32 *p, struct nfs3_createargs *args) |
379 | { |
380 | p = xdr_encode_fhandle(p, args->fh); |
381 | p = xdr_encode_array(p, args->name, args->len); |
382 | |
383 | *p++ = htonl(args->createmode); |
384 | if (args->createmode == NFS3_CREATE_EXCLUSIVE) { |
385 | *p++ = args->verifier[0]; |
386 | *p++ = args->verifier[1]; |
387 | } else |
388 | p = xdr_encode_sattr(p, args->sattr); |
389 | |
390 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
391 | return 0; |
392 | } |
393 | |
394 | /* |
395 | * Encode MKDIR arguments |
396 | */ |
397 | static int |
398 | nfs3_xdr_mkdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mkdirargs *args) |
399 | { |
400 | p = xdr_encode_fhandle(p, args->fh); |
401 | p = xdr_encode_array(p, args->name, args->len); |
402 | p = xdr_encode_sattr(p, args->sattr); |
403 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
404 | return 0; |
405 | } |
406 | |
407 | /* |
408 | * Encode SYMLINK arguments |
409 | */ |
410 | static int |
411 | nfs3_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_symlinkargs *args) |
412 | { |
413 | p = xdr_encode_fhandle(p, args->fromfh); |
414 | p = xdr_encode_array(p, args->fromname, args->fromlen); |
415 | p = xdr_encode_sattr(p, args->sattr); |
416 | *p++ = htonl(args->pathlen); |
417 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
418 | |
419 | /* Copy the page */ |
420 | xdr_encode_pages(&req->rq_snd_buf, args->pages, 0, args->pathlen); |
421 | return 0; |
422 | } |
423 | |
424 | /* |
425 | * Encode MKNOD arguments |
426 | */ |
427 | static int |
428 | nfs3_xdr_mknodargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mknodargs *args) |
429 | { |
430 | p = xdr_encode_fhandle(p, args->fh); |
431 | p = xdr_encode_array(p, args->name, args->len); |
432 | *p++ = htonl(args->type); |
433 | p = xdr_encode_sattr(p, args->sattr); |
434 | if (args->type == NF3CHR || args->type == NF3BLK) { |
435 | *p++ = htonl(MAJOR(args->rdev)); |
436 | *p++ = htonl(MINOR(args->rdev)); |
437 | } |
438 | |
439 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
440 | return 0; |
441 | } |
442 | |
443 | /* |
444 | * Encode RENAME arguments |
445 | */ |
446 | static int |
447 | nfs3_xdr_renameargs(struct rpc_rqst *req, __be32 *p, struct nfs3_renameargs *args) |
448 | { |
449 | p = xdr_encode_fhandle(p, args->fromfh); |
450 | p = xdr_encode_array(p, args->fromname, args->fromlen); |
451 | p = xdr_encode_fhandle(p, args->tofh); |
452 | p = xdr_encode_array(p, args->toname, args->tolen); |
453 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
454 | return 0; |
455 | } |
456 | |
457 | /* |
458 | * Encode LINK arguments |
459 | */ |
460 | static int |
461 | nfs3_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_linkargs *args) |
462 | { |
463 | p = xdr_encode_fhandle(p, args->fromfh); |
464 | p = xdr_encode_fhandle(p, args->tofh); |
465 | p = xdr_encode_array(p, args->toname, args->tolen); |
466 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
467 | return 0; |
468 | } |
469 | |
470 | /* |
471 | * Encode arguments to readdir call |
472 | */ |
473 | static int |
474 | nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *args) |
475 | { |
476 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
477 | unsigned int replen; |
478 | u32 count = args->count; |
479 | |
480 | p = xdr_encode_fhandle(p, args->fh); |
481 | p = xdr_encode_hyper(p, args->cookie); |
482 | *p++ = args->verf[0]; |
483 | *p++ = args->verf[1]; |
484 | if (args->plus) { |
485 | /* readdirplus: need dircount + buffer size. |
486 | * We just make sure we make dircount big enough */ |
487 | *p++ = htonl(count >> 3); |
488 | } |
489 | *p++ = htonl(count); |
490 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
491 | |
492 | /* Inline the page array */ |
493 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readdirres_sz) << 2; |
494 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count); |
495 | return 0; |
496 | } |
497 | |
498 | /* |
499 | * Decode the result of a readdir call. |
500 | * We just check for syntactical correctness. |
501 | */ |
502 | static int |
503 | nfs3_xdr_readdirres(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirres *res) |
504 | { |
505 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
506 | struct kvec *iov = rcvbuf->head; |
507 | struct page **page; |
508 | size_t hdrlen; |
509 | u32 len, recvd, pglen; |
510 | int status, nr = 0; |
511 | __be32 *entry, *end, *kaddr; |
512 | |
513 | status = ntohl(*p++); |
514 | /* Decode post_op_attrs */ |
515 | p = xdr_decode_post_op_attr(p, res->dir_attr); |
516 | if (status) |
517 | return nfs_stat_to_errno(status); |
518 | /* Decode verifier cookie */ |
519 | if (res->verf) { |
520 | res->verf[0] = *p++; |
521 | res->verf[1] = *p++; |
522 | } else { |
523 | p += 2; |
524 | } |
525 | |
526 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
527 | if (iov->iov_len < hdrlen) { |
528 | dprintk("NFS: READDIR reply header overflowed:" |
529 | "length %Zu > %Zu\n", hdrlen, iov->iov_len); |
530 | return -errno_NFSERR_IO; |
531 | } else if (iov->iov_len != hdrlen) { |
532 | dprintk("NFS: READDIR header is short. iovec will be shifted.\n"); |
533 | xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen); |
534 | } |
535 | |
536 | pglen = rcvbuf->page_len; |
537 | recvd = rcvbuf->len - hdrlen; |
538 | if (pglen > recvd) |
539 | pglen = recvd; |
540 | page = rcvbuf->pages; |
541 | kaddr = p = kmap_atomic(*page, KM_USER0); |
542 | end = (__be32 *)((char *)p + pglen); |
543 | entry = p; |
544 | |
545 | /* Make sure the packet actually has a value_follows and EOF entry */ |
546 | if ((entry + 1) > end) |
547 | goto short_pkt; |
548 | |
549 | for (; *p++; nr++) { |
550 | if (p + 3 > end) |
551 | goto short_pkt; |
552 | p += 2; /* inode # */ |
553 | len = ntohl(*p++); /* string length */ |
554 | p += XDR_QUADLEN(len) + 2; /* name + cookie */ |
555 | if (len > NFS3_MAXNAMLEN) { |
556 | dprintk("NFS: giant filename in readdir (len 0x%x)!\n", |
557 | len); |
558 | goto err_unmap; |
559 | } |
560 | |
561 | if (res->plus) { |
562 | /* post_op_attr */ |
563 | if (p + 2 > end) |
564 | goto short_pkt; |
565 | if (*p++) { |
566 | p += 21; |
567 | if (p + 1 > end) |
568 | goto short_pkt; |
569 | } |
570 | /* post_op_fh3 */ |
571 | if (*p++) { |
572 | if (p + 1 > end) |
573 | goto short_pkt; |
574 | len = ntohl(*p++); |
575 | if (len > NFS3_FHSIZE) { |
576 | dprintk("NFS: giant filehandle in " |
577 | "readdir (len 0x%x)!\n", len); |
578 | goto err_unmap; |
579 | } |
580 | p += XDR_QUADLEN(len); |
581 | } |
582 | } |
583 | |
584 | if (p + 2 > end) |
585 | goto short_pkt; |
586 | entry = p; |
587 | } |
588 | |
589 | /* |
590 | * Apparently some server sends responses that are a valid size, but |
591 | * contain no entries, and have value_follows==0 and EOF==0. For |
592 | * those, just set the EOF marker. |
593 | */ |
594 | if (!nr && entry[1] == 0) { |
595 | dprintk("NFS: readdir reply truncated!\n"); |
596 | entry[1] = 1; |
597 | } |
598 | out: |
599 | kunmap_atomic(kaddr, KM_USER0); |
600 | return nr; |
601 | short_pkt: |
602 | /* |
603 | * When we get a short packet there are 2 possibilities. We can |
604 | * return an error, or fix up the response to look like a valid |
605 | * response and return what we have so far. If there are no |
606 | * entries and the packet was short, then return -EIO. If there |
607 | * are valid entries in the response, return them and pretend that |
608 | * the call was successful, but incomplete. The caller can retry the |
609 | * readdir starting at the last cookie. |
610 | */ |
611 | entry[0] = entry[1] = 0; |
612 | if (!nr) |
613 | nr = -errno_NFSERR_IO; |
614 | goto out; |
615 | err_unmap: |
616 | nr = -errno_NFSERR_IO; |
617 | goto out; |
618 | } |
619 | |
620 | __be32 * |
621 | nfs3_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
622 | { |
623 | struct nfs_entry old = *entry; |
624 | |
625 | if (!*p++) { |
626 | if (!*p) |
627 | return ERR_PTR(-EAGAIN); |
628 | entry->eof = 1; |
629 | return ERR_PTR(-EBADCOOKIE); |
630 | } |
631 | |
632 | p = xdr_decode_hyper(p, &entry->ino); |
633 | entry->len = ntohl(*p++); |
634 | entry->name = (const char *) p; |
635 | p += XDR_QUADLEN(entry->len); |
636 | entry->prev_cookie = entry->cookie; |
637 | p = xdr_decode_hyper(p, &entry->cookie); |
638 | |
639 | if (plus) { |
640 | entry->fattr->valid = 0; |
641 | p = xdr_decode_post_op_attr(p, entry->fattr); |
642 | /* In fact, a post_op_fh3: */ |
643 | if (*p++) { |
644 | p = xdr_decode_fhandle(p, entry->fh); |
645 | /* Ugh -- server reply was truncated */ |
646 | if (p == NULL) { |
647 | dprintk("NFS: FH truncated\n"); |
648 | *entry = old; |
649 | return ERR_PTR(-EAGAIN); |
650 | } |
651 | } else |
652 | memset((u8*)(entry->fh), 0, sizeof(*entry->fh)); |
653 | } |
654 | |
655 | entry->eof = !p[0] && p[1]; |
656 | return p; |
657 | } |
658 | |
659 | /* |
660 | * Encode COMMIT arguments |
661 | */ |
662 | static int |
663 | nfs3_xdr_commitargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
664 | { |
665 | p = xdr_encode_fhandle(p, args->fh); |
666 | p = xdr_encode_hyper(p, args->offset); |
667 | *p++ = htonl(args->count); |
668 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
669 | return 0; |
670 | } |
671 | |
672 | #ifdef CONFIG_NFS_V3_ACL |
673 | /* |
674 | * Encode GETACL arguments |
675 | */ |
676 | static int |
677 | nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p, |
678 | struct nfs3_getaclargs *args) |
679 | { |
680 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
681 | unsigned int replen; |
682 | |
683 | p = xdr_encode_fhandle(p, args->fh); |
684 | *p++ = htonl(args->mask); |
685 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
686 | |
687 | if (args->mask & (NFS_ACL | NFS_DFACL)) { |
688 | /* Inline the page array */ |
689 | replen = (RPC_REPHDRSIZE + auth->au_rslack + |
690 | ACL3_getaclres_sz) << 2; |
691 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, |
692 | NFSACL_MAXPAGES << PAGE_SHIFT); |
693 | } |
694 | return 0; |
695 | } |
696 | |
697 | /* |
698 | * Encode SETACL arguments |
699 | */ |
700 | static int |
701 | nfs3_xdr_setaclargs(struct rpc_rqst *req, __be32 *p, |
702 | struct nfs3_setaclargs *args) |
703 | { |
704 | struct xdr_buf *buf = &req->rq_snd_buf; |
705 | unsigned int base; |
706 | int err; |
707 | |
708 | p = xdr_encode_fhandle(p, NFS_FH(args->inode)); |
709 | *p++ = htonl(args->mask); |
710 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
711 | base = req->rq_slen; |
712 | |
713 | if (args->npages != 0) |
714 | xdr_encode_pages(buf, args->pages, 0, args->len); |
715 | else |
716 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, |
717 | p + XDR_QUADLEN(args->len)); |
718 | |
719 | err = nfsacl_encode(buf, base, args->inode, |
720 | (args->mask & NFS_ACL) ? |
721 | args->acl_access : NULL, 1, 0); |
722 | if (err > 0) |
723 | err = nfsacl_encode(buf, base + err, args->inode, |
724 | (args->mask & NFS_DFACL) ? |
725 | args->acl_default : NULL, 1, |
726 | NFS_ACL_DEFAULT); |
727 | return (err > 0) ? 0 : err; |
728 | } |
729 | #endif /* CONFIG_NFS_V3_ACL */ |
730 | |
731 | /* |
732 | * NFS XDR decode functions |
733 | */ |
734 | |
735 | /* |
736 | * Decode attrstat reply. |
737 | */ |
738 | static int |
739 | nfs3_xdr_attrstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr) |
740 | { |
741 | int status; |
742 | |
743 | if ((status = ntohl(*p++))) |
744 | return nfs_stat_to_errno(status); |
745 | xdr_decode_fattr(p, fattr); |
746 | return 0; |
747 | } |
748 | |
749 | /* |
750 | * Decode status+wcc_data reply |
751 | * SATTR, REMOVE, RMDIR |
752 | */ |
753 | static int |
754 | nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr) |
755 | { |
756 | int status; |
757 | |
758 | if ((status = ntohl(*p++))) |
759 | status = nfs_stat_to_errno(status); |
760 | xdr_decode_wcc_data(p, fattr); |
761 | return status; |
762 | } |
763 | |
764 | static int |
765 | nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res) |
766 | { |
767 | return nfs3_xdr_wccstat(req, p, &res->dir_attr); |
768 | } |
769 | |
770 | /* |
771 | * Decode LOOKUP reply |
772 | */ |
773 | static int |
774 | nfs3_xdr_lookupres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res) |
775 | { |
776 | int status; |
777 | |
778 | if ((status = ntohl(*p++))) { |
779 | status = nfs_stat_to_errno(status); |
780 | } else { |
781 | if (!(p = xdr_decode_fhandle(p, res->fh))) |
782 | return -errno_NFSERR_IO; |
783 | p = xdr_decode_post_op_attr(p, res->fattr); |
784 | } |
785 | xdr_decode_post_op_attr(p, res->dir_attr); |
786 | return status; |
787 | } |
788 | |
789 | /* |
790 | * Decode ACCESS reply |
791 | */ |
792 | static int |
793 | nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res) |
794 | { |
795 | int status = ntohl(*p++); |
796 | |
797 | p = xdr_decode_post_op_attr(p, res->fattr); |
798 | if (status) |
799 | return nfs_stat_to_errno(status); |
800 | res->access = ntohl(*p++); |
801 | return 0; |
802 | } |
803 | |
804 | static int |
805 | nfs3_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readlinkargs *args) |
806 | { |
807 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
808 | unsigned int replen; |
809 | |
810 | p = xdr_encode_fhandle(p, args->fh); |
811 | req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); |
812 | |
813 | /* Inline the page array */ |
814 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readlinkres_sz) << 2; |
815 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, args->pgbase, args->pglen); |
816 | return 0; |
817 | } |
818 | |
819 | /* |
820 | * Decode READLINK reply |
821 | */ |
822 | static int |
823 | nfs3_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr) |
824 | { |
825 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
826 | struct kvec *iov = rcvbuf->head; |
827 | size_t hdrlen; |
828 | u32 len, recvd; |
829 | char *kaddr; |
830 | int status; |
831 | |
832 | status = ntohl(*p++); |
833 | p = xdr_decode_post_op_attr(p, fattr); |
834 | |
835 | if (status != 0) |
836 | return nfs_stat_to_errno(status); |
837 | |
838 | /* Convert length of symlink */ |
839 | len = ntohl(*p++); |
840 | if (len >= rcvbuf->page_len) { |
841 | dprintk("nfs: server returned giant symlink!\n"); |
842 | return -ENAMETOOLONG; |
843 | } |
844 | |
845 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
846 | if (iov->iov_len < hdrlen) { |
847 | dprintk("NFS: READLINK reply header overflowed:" |
848 | "length %Zu > %Zu\n", hdrlen, iov->iov_len); |
849 | return -errno_NFSERR_IO; |
850 | } else if (iov->iov_len != hdrlen) { |
851 | dprintk("NFS: READLINK header is short. " |
852 | "iovec will be shifted.\n"); |
853 | xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen); |
854 | } |
855 | recvd = req->rq_rcv_buf.len - hdrlen; |
856 | if (recvd < len) { |
857 | dprintk("NFS: server cheating in readlink reply: " |
858 | "count %u > recvd %u\n", len, recvd); |
859 | return -EIO; |
860 | } |
861 | |
862 | /* NULL terminate the string we got */ |
863 | kaddr = (char*)kmap_atomic(rcvbuf->pages[0], KM_USER0); |
864 | kaddr[len+rcvbuf->page_base] = '\0'; |
865 | kunmap_atomic(kaddr, KM_USER0); |
866 | return 0; |
867 | } |
868 | |
869 | /* |
870 | * Decode READ reply |
871 | */ |
872 | static int |
873 | nfs3_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res) |
874 | { |
875 | struct kvec *iov = req->rq_rcv_buf.head; |
876 | size_t hdrlen; |
877 | u32 count, ocount, recvd; |
878 | int status; |
879 | |
880 | status = ntohl(*p++); |
881 | p = xdr_decode_post_op_attr(p, res->fattr); |
882 | |
883 | if (status != 0) |
884 | return nfs_stat_to_errno(status); |
885 | |
886 | /* Decode reply count and EOF flag. NFSv3 is somewhat redundant |
887 | * in that it puts the count both in the res struct and in the |
888 | * opaque data count. */ |
889 | count = ntohl(*p++); |
890 | res->eof = ntohl(*p++); |
891 | ocount = ntohl(*p++); |
892 | |
893 | if (ocount != count) { |
894 | dprintk("NFS: READ count doesn't match RPC opaque count.\n"); |
895 | return -errno_NFSERR_IO; |
896 | } |
897 | |
898 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
899 | if (iov->iov_len < hdrlen) { |
900 | dprintk("NFS: READ reply header overflowed:" |
901 | "length %Zu > %Zu\n", hdrlen, iov->iov_len); |
902 | return -errno_NFSERR_IO; |
903 | } else if (iov->iov_len != hdrlen) { |
904 | dprintk("NFS: READ header is short. iovec will be shifted.\n"); |
905 | xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen); |
906 | } |
907 | |
908 | recvd = req->rq_rcv_buf.len - hdrlen; |
909 | if (count > recvd) { |
910 | dprintk("NFS: server cheating in read reply: " |
911 | "count %u > recvd %u\n", count, recvd); |
912 | count = recvd; |
913 | res->eof = 0; |
914 | } |
915 | |
916 | if (count < res->count) |
917 | res->count = count; |
918 | |
919 | return count; |
920 | } |
921 | |
922 | /* |
923 | * Decode WRITE response |
924 | */ |
925 | static int |
926 | nfs3_xdr_writeres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res) |
927 | { |
928 | int status; |
929 | |
930 | status = ntohl(*p++); |
931 | p = xdr_decode_wcc_data(p, res->fattr); |
932 | |
933 | if (status != 0) |
934 | return nfs_stat_to_errno(status); |
935 | |
936 | res->count = ntohl(*p++); |
937 | res->verf->committed = (enum nfs3_stable_how)ntohl(*p++); |
938 | res->verf->verifier[0] = *p++; |
939 | res->verf->verifier[1] = *p++; |
940 | |
941 | return res->count; |
942 | } |
943 | |
944 | /* |
945 | * Decode a CREATE response |
946 | */ |
947 | static int |
948 | nfs3_xdr_createres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res) |
949 | { |
950 | int status; |
951 | |
952 | status = ntohl(*p++); |
953 | if (status == 0) { |
954 | if (*p++) { |
955 | if (!(p = xdr_decode_fhandle(p, res->fh))) |
956 | return -errno_NFSERR_IO; |
957 | p = xdr_decode_post_op_attr(p, res->fattr); |
958 | } else { |
959 | memset(res->fh, 0, sizeof(*res->fh)); |
960 | /* Do decode post_op_attr but set it to NULL */ |
961 | p = xdr_decode_post_op_attr(p, res->fattr); |
962 | res->fattr->valid = 0; |
963 | } |
964 | } else { |
965 | status = nfs_stat_to_errno(status); |
966 | } |
967 | p = xdr_decode_wcc_data(p, res->dir_attr); |
968 | return status; |
969 | } |
970 | |
971 | /* |
972 | * Decode RENAME reply |
973 | */ |
974 | static int |
975 | nfs3_xdr_renameres(struct rpc_rqst *req, __be32 *p, struct nfs3_renameres *res) |
976 | { |
977 | int status; |
978 | |
979 | if ((status = ntohl(*p++)) != 0) |
980 | status = nfs_stat_to_errno(status); |
981 | p = xdr_decode_wcc_data(p, res->fromattr); |
982 | p = xdr_decode_wcc_data(p, res->toattr); |
983 | return status; |
984 | } |
985 | |
986 | /* |
987 | * Decode LINK reply |
988 | */ |
989 | static int |
990 | nfs3_xdr_linkres(struct rpc_rqst *req, __be32 *p, struct nfs3_linkres *res) |
991 | { |
992 | int status; |
993 | |
994 | if ((status = ntohl(*p++)) != 0) |
995 | status = nfs_stat_to_errno(status); |
996 | p = xdr_decode_post_op_attr(p, res->fattr); |
997 | p = xdr_decode_wcc_data(p, res->dir_attr); |
998 | return status; |
999 | } |
1000 | |
1001 | /* |
1002 | * Decode FSSTAT reply |
1003 | */ |
1004 | static int |
1005 | nfs3_xdr_fsstatres(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *res) |
1006 | { |
1007 | int status; |
1008 | |
1009 | status = ntohl(*p++); |
1010 | |
1011 | p = xdr_decode_post_op_attr(p, res->fattr); |
1012 | if (status != 0) |
1013 | return nfs_stat_to_errno(status); |
1014 | |
1015 | p = xdr_decode_hyper(p, &res->tbytes); |
1016 | p = xdr_decode_hyper(p, &res->fbytes); |
1017 | p = xdr_decode_hyper(p, &res->abytes); |
1018 | p = xdr_decode_hyper(p, &res->tfiles); |
1019 | p = xdr_decode_hyper(p, &res->ffiles); |
1020 | p = xdr_decode_hyper(p, &res->afiles); |
1021 | |
1022 | /* ignore invarsec */ |
1023 | return 0; |
1024 | } |
1025 | |
1026 | /* |
1027 | * Decode FSINFO reply |
1028 | */ |
1029 | static int |
1030 | nfs3_xdr_fsinfores(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *res) |
1031 | { |
1032 | int status; |
1033 | |
1034 | status = ntohl(*p++); |
1035 | |
1036 | p = xdr_decode_post_op_attr(p, res->fattr); |
1037 | if (status != 0) |
1038 | return nfs_stat_to_errno(status); |
1039 | |
1040 | res->rtmax = ntohl(*p++); |
1041 | res->rtpref = ntohl(*p++); |
1042 | res->rtmult = ntohl(*p++); |
1043 | res->wtmax = ntohl(*p++); |
1044 | res->wtpref = ntohl(*p++); |
1045 | res->wtmult = ntohl(*p++); |
1046 | res->dtpref = ntohl(*p++); |
1047 | p = xdr_decode_hyper(p, &res->maxfilesize); |
1048 | |
1049 | /* ignore time_delta and properties */ |
1050 | res->lease_time = 0; |
1051 | return 0; |
1052 | } |
1053 | |
1054 | /* |
1055 | * Decode PATHCONF reply |
1056 | */ |
1057 | static int |
1058 | nfs3_xdr_pathconfres(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *res) |
1059 | { |
1060 | int status; |
1061 | |
1062 | status = ntohl(*p++); |
1063 | |
1064 | p = xdr_decode_post_op_attr(p, res->fattr); |
1065 | if (status != 0) |
1066 | return nfs_stat_to_errno(status); |
1067 | res->max_link = ntohl(*p++); |
1068 | res->max_namelen = ntohl(*p++); |
1069 | |
1070 | /* ignore remaining fields */ |
1071 | return 0; |
1072 | } |
1073 | |
1074 | /* |
1075 | * Decode COMMIT reply |
1076 | */ |
1077 | static int |
1078 | nfs3_xdr_commitres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res) |
1079 | { |
1080 | int status; |
1081 | |
1082 | status = ntohl(*p++); |
1083 | p = xdr_decode_wcc_data(p, res->fattr); |
1084 | if (status != 0) |
1085 | return nfs_stat_to_errno(status); |
1086 | |
1087 | res->verf->verifier[0] = *p++; |
1088 | res->verf->verifier[1] = *p++; |
1089 | return 0; |
1090 | } |
1091 | |
1092 | #ifdef CONFIG_NFS_V3_ACL |
1093 | /* |
1094 | * Decode GETACL reply |
1095 | */ |
1096 | static int |
1097 | nfs3_xdr_getaclres(struct rpc_rqst *req, __be32 *p, |
1098 | struct nfs3_getaclres *res) |
1099 | { |
1100 | struct xdr_buf *buf = &req->rq_rcv_buf; |
1101 | int status = ntohl(*p++); |
1102 | struct posix_acl **acl; |
1103 | unsigned int *aclcnt; |
1104 | int err, base; |
1105 | |
1106 | if (status != 0) |
1107 | return nfs_stat_to_errno(status); |
1108 | p = xdr_decode_post_op_attr(p, res->fattr); |
1109 | res->mask = ntohl(*p++); |
1110 | if (res->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT)) |
1111 | return -EINVAL; |
1112 | base = (char *)p - (char *)req->rq_rcv_buf.head->iov_base; |
1113 | |
1114 | acl = (res->mask & NFS_ACL) ? &res->acl_access : NULL; |
1115 | aclcnt = (res->mask & NFS_ACLCNT) ? &res->acl_access_count : NULL; |
1116 | err = nfsacl_decode(buf, base, aclcnt, acl); |
1117 | |
1118 | acl = (res->mask & NFS_DFACL) ? &res->acl_default : NULL; |
1119 | aclcnt = (res->mask & NFS_DFACLCNT) ? &res->acl_default_count : NULL; |
1120 | if (err > 0) |
1121 | err = nfsacl_decode(buf, base + err, aclcnt, acl); |
1122 | return (err > 0) ? 0 : err; |
1123 | } |
1124 | |
1125 | /* |
1126 | * Decode setacl reply. |
1127 | */ |
1128 | static int |
1129 | nfs3_xdr_setaclres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr) |
1130 | { |
1131 | int status = ntohl(*p++); |
1132 | |
1133 | if (status) |
1134 | return nfs_stat_to_errno(status); |
1135 | xdr_decode_post_op_attr(p, fattr); |
1136 | return 0; |
1137 | } |
1138 | #endif /* CONFIG_NFS_V3_ACL */ |
1139 | |
1140 | #define PROC(proc, argtype, restype, timer) \ |
1141 | [NFS3PROC_##proc] = { \ |
1142 | .p_proc = NFS3PROC_##proc, \ |
1143 | .p_encode = (kxdrproc_t) nfs3_xdr_##argtype, \ |
1144 | .p_decode = (kxdrproc_t) nfs3_xdr_##restype, \ |
1145 | .p_arglen = NFS3_##argtype##_sz, \ |
1146 | .p_replen = NFS3_##restype##_sz, \ |
1147 | .p_timer = timer, \ |
1148 | .p_statidx = NFS3PROC_##proc, \ |
1149 | .p_name = #proc, \ |
1150 | } |
1151 | |
1152 | struct rpc_procinfo nfs3_procedures[] = { |
1153 | PROC(GETATTR, fhandle, attrstat, 1), |
1154 | PROC(SETATTR, sattrargs, wccstat, 0), |
1155 | PROC(LOOKUP, diropargs, lookupres, 2), |
1156 | PROC(ACCESS, accessargs, accessres, 1), |
1157 | PROC(READLINK, readlinkargs, readlinkres, 3), |
1158 | PROC(READ, readargs, readres, 3), |
1159 | PROC(WRITE, writeargs, writeres, 4), |
1160 | PROC(CREATE, createargs, createres, 0), |
1161 | PROC(MKDIR, mkdirargs, createres, 0), |
1162 | PROC(SYMLINK, symlinkargs, createres, 0), |
1163 | PROC(MKNOD, mknodargs, createres, 0), |
1164 | PROC(REMOVE, removeargs, removeres, 0), |
1165 | PROC(RMDIR, diropargs, wccstat, 0), |
1166 | PROC(RENAME, renameargs, renameres, 0), |
1167 | PROC(LINK, linkargs, linkres, 0), |
1168 | PROC(READDIR, readdirargs, readdirres, 3), |
1169 | PROC(READDIRPLUS, readdirargs, readdirres, 3), |
1170 | PROC(FSSTAT, fhandle, fsstatres, 0), |
1171 | PROC(FSINFO, fhandle, fsinfores, 0), |
1172 | PROC(PATHCONF, fhandle, pathconfres, 0), |
1173 | PROC(COMMIT, commitargs, commitres, 5), |
1174 | }; |
1175 | |
1176 | struct rpc_version nfs_version3 = { |
1177 | .number = 3, |
1178 | .nrprocs = ARRAY_SIZE(nfs3_procedures), |
1179 | .procs = nfs3_procedures |
1180 | }; |
1181 | |
1182 | #ifdef CONFIG_NFS_V3_ACL |
1183 | static struct rpc_procinfo nfs3_acl_procedures[] = { |
1184 | [ACLPROC3_GETACL] = { |
1185 | .p_proc = ACLPROC3_GETACL, |
1186 | .p_encode = (kxdrproc_t) nfs3_xdr_getaclargs, |
1187 | .p_decode = (kxdrproc_t) nfs3_xdr_getaclres, |
1188 | .p_arglen = ACL3_getaclargs_sz, |
1189 | .p_replen = ACL3_getaclres_sz, |
1190 | .p_timer = 1, |
1191 | .p_name = "GETACL", |
1192 | }, |
1193 | [ACLPROC3_SETACL] = { |
1194 | .p_proc = ACLPROC3_SETACL, |
1195 | .p_encode = (kxdrproc_t) nfs3_xdr_setaclargs, |
1196 | .p_decode = (kxdrproc_t) nfs3_xdr_setaclres, |
1197 | .p_arglen = ACL3_setaclargs_sz, |
1198 | .p_replen = ACL3_setaclres_sz, |
1199 | .p_timer = 0, |
1200 | .p_name = "SETACL", |
1201 | }, |
1202 | }; |
1203 | |
1204 | struct rpc_version nfsacl_version3 = { |
1205 | .number = 3, |
1206 | .nrprocs = sizeof(nfs3_acl_procedures)/ |
1207 | sizeof(nfs3_acl_procedures[0]), |
1208 | .procs = nfs3_acl_procedures, |
1209 | }; |
1210 | #endif /* CONFIG_NFS_V3_ACL */ |
1211 |
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