Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * XDR support for nfsd/protocol version 3. |
3 | * | |
4 | * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de> | |
5 | * | |
6 | * 2003-08-09 Jamie Lokier: Use htonl() for nanoseconds, not htons()! | |
7 | */ | |
8 | ||
1da177e4 | 9 | #include <linux/namei.h> |
9a74af21 | 10 | #include "xdr3.h" |
2e8138a2 | 11 | #include "auth.h" |
1da177e4 LT |
12 | |
13 | #define NFSDDBG_FACILITY NFSDDBG_XDR | |
14 | ||
1da177e4 LT |
15 | |
16 | /* | |
17 | * Mapping of S_IF* types to NFS file types | |
18 | */ | |
19 | static u32 nfs3_ftypes[] = { | |
20 | NF3NON, NF3FIFO, NF3CHR, NF3BAD, | |
21 | NF3DIR, NF3BAD, NF3BLK, NF3BAD, | |
22 | NF3REG, NF3BAD, NF3LNK, NF3BAD, | |
23 | NF3SOCK, NF3BAD, NF3LNK, NF3BAD, | |
24 | }; | |
25 | ||
26 | /* | |
27 | * XDR functions for basic NFS types | |
28 | */ | |
3ee6f61c | 29 | static __be32 * |
91f07168 | 30 | encode_time3(__be32 *p, struct timespec *time) |
1da177e4 LT |
31 | { |
32 | *p++ = htonl((u32) time->tv_sec); *p++ = htonl(time->tv_nsec); | |
33 | return p; | |
34 | } | |
35 | ||
3ee6f61c | 36 | static __be32 * |
91f07168 | 37 | decode_time3(__be32 *p, struct timespec *time) |
1da177e4 LT |
38 | { |
39 | time->tv_sec = ntohl(*p++); | |
40 | time->tv_nsec = ntohl(*p++); | |
41 | return p; | |
42 | } | |
43 | ||
3ee6f61c | 44 | static __be32 * |
91f07168 | 45 | decode_fh(__be32 *p, struct svc_fh *fhp) |
1da177e4 LT |
46 | { |
47 | unsigned int size; | |
48 | fh_init(fhp, NFS3_FHSIZE); | |
49 | size = ntohl(*p++); | |
50 | if (size > NFS3_FHSIZE) | |
51 | return NULL; | |
52 | ||
53 | memcpy(&fhp->fh_handle.fh_base, p, size); | |
54 | fhp->fh_handle.fh_size = size; | |
55 | return p + XDR_QUADLEN(size); | |
56 | } | |
57 | ||
a257cdd0 | 58 | /* Helper function for NFSv3 ACL code */ |
91f07168 | 59 | __be32 *nfs3svc_decode_fh(__be32 *p, struct svc_fh *fhp) |
a257cdd0 AG |
60 | { |
61 | return decode_fh(p, fhp); | |
62 | } | |
63 | ||
3ee6f61c | 64 | static __be32 * |
91f07168 | 65 | encode_fh(__be32 *p, struct svc_fh *fhp) |
1da177e4 LT |
66 | { |
67 | unsigned int size = fhp->fh_handle.fh_size; | |
68 | *p++ = htonl(size); | |
69 | if (size) p[XDR_QUADLEN(size)-1]=0; | |
70 | memcpy(p, &fhp->fh_handle.fh_base, size); | |
71 | return p + XDR_QUADLEN(size); | |
72 | } | |
73 | ||
74 | /* | |
75 | * Decode a file name and make sure that the path contains | |
76 | * no slashes or null bytes. | |
77 | */ | |
3ee6f61c | 78 | static __be32 * |
ee1a95b3 | 79 | decode_filename(__be32 *p, char **namp, unsigned int *lenp) |
1da177e4 LT |
80 | { |
81 | char *name; | |
ee1a95b3 | 82 | unsigned int i; |
1da177e4 LT |
83 | |
84 | if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS3_MAXNAMLEN)) != NULL) { | |
85 | for (i = 0, name = *namp; i < *lenp; i++, name++) { | |
86 | if (*name == '\0' || *name == '/') | |
87 | return NULL; | |
88 | } | |
89 | } | |
90 | ||
91 | return p; | |
92 | } | |
93 | ||
3ee6f61c | 94 | static __be32 * |
91f07168 | 95 | decode_sattr3(__be32 *p, struct iattr *iap) |
1da177e4 LT |
96 | { |
97 | u32 tmp; | |
98 | ||
99 | iap->ia_valid = 0; | |
100 | ||
101 | if (*p++) { | |
102 | iap->ia_valid |= ATTR_MODE; | |
103 | iap->ia_mode = ntohl(*p++); | |
104 | } | |
105 | if (*p++) { | |
106 | iap->ia_valid |= ATTR_UID; | |
107 | iap->ia_uid = ntohl(*p++); | |
108 | } | |
109 | if (*p++) { | |
110 | iap->ia_valid |= ATTR_GID; | |
111 | iap->ia_gid = ntohl(*p++); | |
112 | } | |
113 | if (*p++) { | |
114 | u64 newsize; | |
115 | ||
116 | iap->ia_valid |= ATTR_SIZE; | |
117 | p = xdr_decode_hyper(p, &newsize); | |
118 | if (newsize <= NFS_OFFSET_MAX) | |
119 | iap->ia_size = newsize; | |
120 | else | |
121 | iap->ia_size = NFS_OFFSET_MAX; | |
122 | } | |
123 | if ((tmp = ntohl(*p++)) == 1) { /* set to server time */ | |
124 | iap->ia_valid |= ATTR_ATIME; | |
125 | } else if (tmp == 2) { /* set to client time */ | |
126 | iap->ia_valid |= ATTR_ATIME | ATTR_ATIME_SET; | |
127 | iap->ia_atime.tv_sec = ntohl(*p++); | |
128 | iap->ia_atime.tv_nsec = ntohl(*p++); | |
129 | } | |
130 | if ((tmp = ntohl(*p++)) == 1) { /* set to server time */ | |
131 | iap->ia_valid |= ATTR_MTIME; | |
132 | } else if (tmp == 2) { /* set to client time */ | |
133 | iap->ia_valid |= ATTR_MTIME | ATTR_MTIME_SET; | |
134 | iap->ia_mtime.tv_sec = ntohl(*p++); | |
135 | iap->ia_mtime.tv_nsec = ntohl(*p++); | |
136 | } | |
137 | return p; | |
138 | } | |
139 | ||
af6a4e28 N |
140 | static __be32 *encode_fsid(__be32 *p, struct svc_fh *fhp) |
141 | { | |
142 | u64 f; | |
143 | switch(fsid_source(fhp)) { | |
144 | default: | |
145 | case FSIDSOURCE_DEV: | |
146 | p = xdr_encode_hyper(p, (u64)huge_encode_dev | |
147 | (fhp->fh_dentry->d_inode->i_sb->s_dev)); | |
148 | break; | |
149 | case FSIDSOURCE_FSID: | |
150 | p = xdr_encode_hyper(p, (u64) fhp->fh_export->ex_fsid); | |
151 | break; | |
152 | case FSIDSOURCE_UUID: | |
153 | f = ((u64*)fhp->fh_export->ex_uuid)[0]; | |
154 | f ^= ((u64*)fhp->fh_export->ex_uuid)[1]; | |
155 | p = xdr_encode_hyper(p, f); | |
156 | break; | |
157 | } | |
158 | return p; | |
159 | } | |
160 | ||
3ee6f61c | 161 | static __be32 * |
91f07168 | 162 | encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, |
a334de28 | 163 | struct kstat *stat) |
1da177e4 | 164 | { |
a334de28 DS |
165 | *p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]); |
166 | *p++ = htonl((u32) stat->mode); | |
167 | *p++ = htonl((u32) stat->nlink); | |
168 | *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid)); | |
169 | *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid)); | |
170 | if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) { | |
1da177e4 LT |
171 | p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN); |
172 | } else { | |
a334de28 | 173 | p = xdr_encode_hyper(p, (u64) stat->size); |
1da177e4 | 174 | } |
a334de28 DS |
175 | p = xdr_encode_hyper(p, ((u64)stat->blocks) << 9); |
176 | *p++ = htonl((u32) MAJOR(stat->rdev)); | |
177 | *p++ = htonl((u32) MINOR(stat->rdev)); | |
af6a4e28 | 178 | p = encode_fsid(p, fhp); |
40ee5dc6 | 179 | p = xdr_encode_hyper(p, stat->ino); |
a334de28 | 180 | p = encode_time3(p, &stat->atime); |
40ee5dc6 | 181 | p = encode_time3(p, &stat->mtime); |
a334de28 | 182 | p = encode_time3(p, &stat->ctime); |
1da177e4 LT |
183 | |
184 | return p; | |
185 | } | |
186 | ||
3ee6f61c | 187 | static __be32 * |
91f07168 | 188 | encode_saved_post_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp) |
1da177e4 | 189 | { |
1da177e4 LT |
190 | /* Attributes to follow */ |
191 | *p++ = xdr_one; | |
40ee5dc6 | 192 | return encode_fattr3(rqstp, p, fhp, &fhp->fh_post_attr); |
1da177e4 LT |
193 | } |
194 | ||
195 | /* | |
196 | * Encode post-operation attributes. | |
197 | * The inode may be NULL if the call failed because of a stale file | |
198 | * handle. In this case, no attributes are returned. | |
199 | */ | |
91f07168 AV |
200 | static __be32 * |
201 | encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp) | |
1da177e4 LT |
202 | { |
203 | struct dentry *dentry = fhp->fh_dentry; | |
072f62ed | 204 | if (dentry && dentry->d_inode) { |
a334de28 DS |
205 | int err; |
206 | struct kstat stat; | |
207 | ||
54775491 | 208 | err = vfs_getattr(fhp->fh_export->ex_path.mnt, dentry, &stat); |
a334de28 DS |
209 | if (!err) { |
210 | *p++ = xdr_one; /* attributes follow */ | |
40ee5dc6 | 211 | lease_get_mtime(dentry->d_inode, &stat.mtime); |
a334de28 DS |
212 | return encode_fattr3(rqstp, p, fhp, &stat); |
213 | } | |
1da177e4 LT |
214 | } |
215 | *p++ = xdr_zero; | |
216 | return p; | |
217 | } | |
218 | ||
a257cdd0 | 219 | /* Helper for NFSv3 ACLs */ |
91f07168 AV |
220 | __be32 * |
221 | nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp) | |
a257cdd0 AG |
222 | { |
223 | return encode_post_op_attr(rqstp, p, fhp); | |
224 | } | |
225 | ||
1da177e4 LT |
226 | /* |
227 | * Enocde weak cache consistency data | |
228 | */ | |
91f07168 AV |
229 | static __be32 * |
230 | encode_wcc_data(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp) | |
1da177e4 LT |
231 | { |
232 | struct dentry *dentry = fhp->fh_dentry; | |
233 | ||
234 | if (dentry && dentry->d_inode && fhp->fh_post_saved) { | |
235 | if (fhp->fh_pre_saved) { | |
236 | *p++ = xdr_one; | |
237 | p = xdr_encode_hyper(p, (u64) fhp->fh_pre_size); | |
238 | p = encode_time3(p, &fhp->fh_pre_mtime); | |
239 | p = encode_time3(p, &fhp->fh_pre_ctime); | |
240 | } else { | |
241 | *p++ = xdr_zero; | |
242 | } | |
243 | return encode_saved_post_attr(rqstp, p, fhp); | |
244 | } | |
245 | /* no pre- or post-attrs */ | |
246 | *p++ = xdr_zero; | |
247 | return encode_post_op_attr(rqstp, p, fhp); | |
248 | } | |
249 | ||
40ee5dc6 PS |
250 | /* |
251 | * Fill in the post_op attr for the wcc data | |
252 | */ | |
253 | void fill_post_wcc(struct svc_fh *fhp) | |
254 | { | |
255 | int err; | |
256 | ||
257 | if (fhp->fh_post_saved) | |
258 | printk("nfsd: inode locked twice during operation.\n"); | |
259 | ||
54775491 | 260 | err = vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry, |
40ee5dc6 | 261 | &fhp->fh_post_attr); |
c654b8a9 | 262 | fhp->fh_post_change = fhp->fh_dentry->d_inode->i_version; |
40ee5dc6 PS |
263 | if (err) |
264 | fhp->fh_post_saved = 0; | |
265 | else | |
266 | fhp->fh_post_saved = 1; | |
267 | } | |
1da177e4 LT |
268 | |
269 | /* | |
270 | * XDR decode functions | |
271 | */ | |
272 | int | |
91f07168 | 273 | nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args) |
1da177e4 LT |
274 | { |
275 | if (!(p = decode_fh(p, &args->fh))) | |
276 | return 0; | |
277 | return xdr_argsize_check(rqstp, p); | |
278 | } | |
279 | ||
280 | int | |
91f07168 | 281 | nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
282 | struct nfsd3_sattrargs *args) |
283 | { | |
072f62ed | 284 | if (!(p = decode_fh(p, &args->fh))) |
1da177e4 | 285 | return 0; |
072f62ed | 286 | p = decode_sattr3(p, &args->attrs); |
1da177e4 LT |
287 | |
288 | if ((args->check_guard = ntohl(*p++)) != 0) { | |
289 | struct timespec time; | |
290 | p = decode_time3(p, &time); | |
291 | args->guardtime = time.tv_sec; | |
292 | } | |
293 | ||
294 | return xdr_argsize_check(rqstp, p); | |
295 | } | |
296 | ||
297 | int | |
91f07168 | 298 | nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
299 | struct nfsd3_diropargs *args) |
300 | { | |
301 | if (!(p = decode_fh(p, &args->fh)) | |
302 | || !(p = decode_filename(p, &args->name, &args->len))) | |
303 | return 0; | |
304 | ||
305 | return xdr_argsize_check(rqstp, p); | |
306 | } | |
307 | ||
308 | int | |
91f07168 | 309 | nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
310 | struct nfsd3_accessargs *args) |
311 | { | |
312 | if (!(p = decode_fh(p, &args->fh))) | |
313 | return 0; | |
314 | args->access = ntohl(*p++); | |
315 | ||
316 | return xdr_argsize_check(rqstp, p); | |
317 | } | |
318 | ||
319 | int | |
91f07168 | 320 | nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
321 | struct nfsd3_readargs *args) |
322 | { | |
323 | unsigned int len; | |
324 | int v,pn; | |
7adae489 | 325 | u32 max_blocksize = svc_max_payload(rqstp); |
1da177e4 | 326 | |
072f62ed | 327 | if (!(p = decode_fh(p, &args->fh))) |
1da177e4 | 328 | return 0; |
072f62ed | 329 | p = xdr_decode_hyper(p, &args->offset); |
1da177e4 LT |
330 | |
331 | len = args->count = ntohl(*p++); | |
332 | ||
7adae489 GB |
333 | if (len > max_blocksize) |
334 | len = max_blocksize; | |
1da177e4 LT |
335 | |
336 | /* set up the kvec */ | |
337 | v=0; | |
338 | while (len > 0) { | |
44524359 | 339 | pn = rqstp->rq_resused++; |
3cc03b16 N |
340 | rqstp->rq_vec[v].iov_base = page_address(rqstp->rq_respages[pn]); |
341 | rqstp->rq_vec[v].iov_len = len < PAGE_SIZE? len : PAGE_SIZE; | |
342 | len -= rqstp->rq_vec[v].iov_len; | |
1da177e4 LT |
343 | v++; |
344 | } | |
345 | args->vlen = v; | |
346 | return xdr_argsize_check(rqstp, p); | |
347 | } | |
348 | ||
349 | int | |
91f07168 | 350 | nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
351 | struct nfsd3_writeargs *args) |
352 | { | |
f34b9568 | 353 | unsigned int len, v, hdr, dlen; |
7adae489 | 354 | u32 max_blocksize = svc_max_payload(rqstp); |
1da177e4 | 355 | |
072f62ed | 356 | if (!(p = decode_fh(p, &args->fh))) |
1da177e4 | 357 | return 0; |
072f62ed | 358 | p = xdr_decode_hyper(p, &args->offset); |
1da177e4 LT |
359 | |
360 | args->count = ntohl(*p++); | |
361 | args->stable = ntohl(*p++); | |
362 | len = args->len = ntohl(*p++); | |
f34b9568 PS |
363 | /* |
364 | * The count must equal the amount of data passed. | |
365 | */ | |
366 | if (args->count != args->len) | |
367 | return 0; | |
1da177e4 | 368 | |
f34b9568 PS |
369 | /* |
370 | * Check to make sure that we got the right number of | |
371 | * bytes. | |
f34b9568 | 372 | */ |
1da177e4 | 373 | hdr = (void*)p - rqstp->rq_arg.head[0].iov_base; |
072f62ed N |
374 | dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len |
375 | - hdr; | |
f34b9568 PS |
376 | /* |
377 | * Round the length of the data which was specified up to | |
378 | * the next multiple of XDR units and then compare that | |
379 | * against the length which was actually received. | |
ba67a39e N |
380 | * Note that when RPCSEC/GSS (for example) is used, the |
381 | * data buffer can be padded so dlen might be larger | |
382 | * than required. It must never be smaller. | |
f34b9568 | 383 | */ |
ba67a39e | 384 | if (dlen < XDR_QUADLEN(len)*4) |
1da177e4 LT |
385 | return 0; |
386 | ||
f34b9568 PS |
387 | if (args->count > max_blocksize) { |
388 | args->count = max_blocksize; | |
389 | len = args->len = max_blocksize; | |
390 | } | |
3cc03b16 N |
391 | rqstp->rq_vec[0].iov_base = (void*)p; |
392 | rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr; | |
f34b9568 | 393 | v = 0; |
3cc03b16 N |
394 | while (len > rqstp->rq_vec[v].iov_len) { |
395 | len -= rqstp->rq_vec[v].iov_len; | |
1da177e4 | 396 | v++; |
3cc03b16 N |
397 | rqstp->rq_vec[v].iov_base = page_address(rqstp->rq_pages[v]); |
398 | rqstp->rq_vec[v].iov_len = PAGE_SIZE; | |
1da177e4 | 399 | } |
3cc03b16 | 400 | rqstp->rq_vec[v].iov_len = len; |
f34b9568 PS |
401 | args->vlen = v + 1; |
402 | return 1; | |
1da177e4 LT |
403 | } |
404 | ||
405 | int | |
91f07168 | 406 | nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
407 | struct nfsd3_createargs *args) |
408 | { | |
409 | if (!(p = decode_fh(p, &args->fh)) | |
410 | || !(p = decode_filename(p, &args->name, &args->len))) | |
411 | return 0; | |
412 | ||
413 | switch (args->createmode = ntohl(*p++)) { | |
414 | case NFS3_CREATE_UNCHECKED: | |
415 | case NFS3_CREATE_GUARDED: | |
072f62ed | 416 | p = decode_sattr3(p, &args->attrs); |
1da177e4 LT |
417 | break; |
418 | case NFS3_CREATE_EXCLUSIVE: | |
419 | args->verf = p; | |
420 | p += 2; | |
421 | break; | |
422 | default: | |
423 | return 0; | |
424 | } | |
425 | ||
426 | return xdr_argsize_check(rqstp, p); | |
427 | } | |
428 | int | |
91f07168 | 429 | nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
430 | struct nfsd3_createargs *args) |
431 | { | |
072f62ed N |
432 | if (!(p = decode_fh(p, &args->fh)) || |
433 | !(p = decode_filename(p, &args->name, &args->len))) | |
1da177e4 | 434 | return 0; |
072f62ed | 435 | p = decode_sattr3(p, &args->attrs); |
1da177e4 LT |
436 | |
437 | return xdr_argsize_check(rqstp, p); | |
438 | } | |
439 | ||
440 | int | |
91f07168 | 441 | nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
442 | struct nfsd3_symlinkargs *args) |
443 | { | |
a628f667 | 444 | unsigned int len, avail; |
1da177e4 LT |
445 | char *old, *new; |
446 | struct kvec *vec; | |
447 | ||
072f62ed N |
448 | if (!(p = decode_fh(p, &args->ffh)) || |
449 | !(p = decode_filename(p, &args->fname, &args->flen)) | |
1da177e4 LT |
450 | ) |
451 | return 0; | |
072f62ed N |
452 | p = decode_sattr3(p, &args->attrs); |
453 | ||
1da177e4 LT |
454 | /* now decode the pathname, which might be larger than the first page. |
455 | * As we have to check for nul's anyway, we copy it into a new page | |
456 | * This page appears in the rq_res.pages list, but as pages_len is always | |
457 | * 0, it won't get in the way | |
458 | */ | |
1da177e4 LT |
459 | len = ntohl(*p++); |
460 | if (len == 0 || len > NFS3_MAXPATHLEN || len >= PAGE_SIZE) | |
461 | return 0; | |
44524359 N |
462 | args->tname = new = |
463 | page_address(rqstp->rq_respages[rqstp->rq_resused++]); | |
1da177e4 LT |
464 | args->tlen = len; |
465 | /* first copy and check from the first page */ | |
466 | old = (char*)p; | |
467 | vec = &rqstp->rq_arg.head[0]; | |
468 | avail = vec->iov_len - (old - (char*)vec->iov_base); | |
469 | while (len && avail && *old) { | |
470 | *new++ = *old++; | |
471 | len--; | |
472 | avail--; | |
473 | } | |
474 | /* now copy next page if there is one */ | |
475 | if (len && !avail && rqstp->rq_arg.page_len) { | |
476 | avail = rqstp->rq_arg.page_len; | |
a628f667 CL |
477 | if (avail > PAGE_SIZE) |
478 | avail = PAGE_SIZE; | |
1da177e4 LT |
479 | old = page_address(rqstp->rq_arg.pages[0]); |
480 | } | |
481 | while (len && avail && *old) { | |
482 | *new++ = *old++; | |
483 | len--; | |
484 | avail--; | |
485 | } | |
486 | *new = '\0'; | |
487 | if (len) | |
488 | return 0; | |
489 | ||
490 | return 1; | |
491 | } | |
492 | ||
493 | int | |
91f07168 | 494 | nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
495 | struct nfsd3_mknodargs *args) |
496 | { | |
497 | if (!(p = decode_fh(p, &args->fh)) | |
498 | || !(p = decode_filename(p, &args->name, &args->len))) | |
499 | return 0; | |
500 | ||
501 | args->ftype = ntohl(*p++); | |
502 | ||
503 | if (args->ftype == NF3BLK || args->ftype == NF3CHR | |
072f62ed N |
504 | || args->ftype == NF3SOCK || args->ftype == NF3FIFO) |
505 | p = decode_sattr3(p, &args->attrs); | |
1da177e4 LT |
506 | |
507 | if (args->ftype == NF3BLK || args->ftype == NF3CHR) { | |
508 | args->major = ntohl(*p++); | |
509 | args->minor = ntohl(*p++); | |
510 | } | |
511 | ||
512 | return xdr_argsize_check(rqstp, p); | |
513 | } | |
514 | ||
515 | int | |
91f07168 | 516 | nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
517 | struct nfsd3_renameargs *args) |
518 | { | |
519 | if (!(p = decode_fh(p, &args->ffh)) | |
520 | || !(p = decode_filename(p, &args->fname, &args->flen)) | |
521 | || !(p = decode_fh(p, &args->tfh)) | |
522 | || !(p = decode_filename(p, &args->tname, &args->tlen))) | |
523 | return 0; | |
524 | ||
525 | return xdr_argsize_check(rqstp, p); | |
526 | } | |
527 | ||
528 | int | |
91f07168 | 529 | nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
530 | struct nfsd3_readlinkargs *args) |
531 | { | |
532 | if (!(p = decode_fh(p, &args->fh))) | |
533 | return 0; | |
44524359 N |
534 | args->buffer = |
535 | page_address(rqstp->rq_respages[rqstp->rq_resused++]); | |
1da177e4 LT |
536 | |
537 | return xdr_argsize_check(rqstp, p); | |
538 | } | |
539 | ||
540 | int | |
91f07168 | 541 | nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
542 | struct nfsd3_linkargs *args) |
543 | { | |
544 | if (!(p = decode_fh(p, &args->ffh)) | |
545 | || !(p = decode_fh(p, &args->tfh)) | |
546 | || !(p = decode_filename(p, &args->tname, &args->tlen))) | |
547 | return 0; | |
548 | ||
549 | return xdr_argsize_check(rqstp, p); | |
550 | } | |
551 | ||
552 | int | |
91f07168 | 553 | nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
554 | struct nfsd3_readdirargs *args) |
555 | { | |
556 | if (!(p = decode_fh(p, &args->fh))) | |
557 | return 0; | |
558 | p = xdr_decode_hyper(p, &args->cookie); | |
559 | args->verf = p; p += 2; | |
560 | args->dircount = ~0; | |
561 | args->count = ntohl(*p++); | |
562 | ||
563 | if (args->count > PAGE_SIZE) | |
564 | args->count = PAGE_SIZE; | |
565 | ||
44524359 N |
566 | args->buffer = |
567 | page_address(rqstp->rq_respages[rqstp->rq_resused++]); | |
1da177e4 LT |
568 | |
569 | return xdr_argsize_check(rqstp, p); | |
570 | } | |
571 | ||
572 | int | |
91f07168 | 573 | nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
574 | struct nfsd3_readdirargs *args) |
575 | { | |
576 | int len, pn; | |
7adae489 | 577 | u32 max_blocksize = svc_max_payload(rqstp); |
1da177e4 LT |
578 | |
579 | if (!(p = decode_fh(p, &args->fh))) | |
580 | return 0; | |
581 | p = xdr_decode_hyper(p, &args->cookie); | |
582 | args->verf = p; p += 2; | |
583 | args->dircount = ntohl(*p++); | |
584 | args->count = ntohl(*p++); | |
585 | ||
7adae489 | 586 | len = (args->count > max_blocksize) ? max_blocksize : |
1da177e4 LT |
587 | args->count; |
588 | args->count = len; | |
589 | ||
590 | while (len > 0) { | |
44524359 | 591 | pn = rqstp->rq_resused++; |
1da177e4 LT |
592 | if (!args->buffer) |
593 | args->buffer = page_address(rqstp->rq_respages[pn]); | |
594 | len -= PAGE_SIZE; | |
595 | } | |
596 | ||
597 | return xdr_argsize_check(rqstp, p); | |
598 | } | |
599 | ||
600 | int | |
91f07168 | 601 | nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
602 | struct nfsd3_commitargs *args) |
603 | { | |
604 | if (!(p = decode_fh(p, &args->fh))) | |
605 | return 0; | |
606 | p = xdr_decode_hyper(p, &args->offset); | |
607 | args->count = ntohl(*p++); | |
608 | ||
609 | return xdr_argsize_check(rqstp, p); | |
610 | } | |
611 | ||
612 | /* | |
613 | * XDR encode functions | |
614 | */ | |
615 | /* | |
616 | * There must be an encoding function for void results so svc_process | |
617 | * will work properly. | |
618 | */ | |
619 | int | |
91f07168 | 620 | nfs3svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
621 | { |
622 | return xdr_ressize_check(rqstp, p); | |
623 | } | |
624 | ||
625 | /* GETATTR */ | |
626 | int | |
91f07168 | 627 | nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
628 | struct nfsd3_attrstat *resp) |
629 | { | |
40ee5dc6 PS |
630 | if (resp->status == 0) { |
631 | lease_get_mtime(resp->fh.fh_dentry->d_inode, | |
632 | &resp->stat.mtime); | |
a334de28 | 633 | p = encode_fattr3(rqstp, p, &resp->fh, &resp->stat); |
40ee5dc6 | 634 | } |
1da177e4 LT |
635 | return xdr_ressize_check(rqstp, p); |
636 | } | |
637 | ||
638 | /* SETATTR, REMOVE, RMDIR */ | |
639 | int | |
91f07168 | 640 | nfs3svc_encode_wccstat(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
641 | struct nfsd3_attrstat *resp) |
642 | { | |
643 | p = encode_wcc_data(rqstp, p, &resp->fh); | |
644 | return xdr_ressize_check(rqstp, p); | |
645 | } | |
646 | ||
647 | /* LOOKUP */ | |
648 | int | |
91f07168 | 649 | nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
650 | struct nfsd3_diropres *resp) |
651 | { | |
652 | if (resp->status == 0) { | |
653 | p = encode_fh(p, &resp->fh); | |
654 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
655 | } | |
656 | p = encode_post_op_attr(rqstp, p, &resp->dirfh); | |
657 | return xdr_ressize_check(rqstp, p); | |
658 | } | |
659 | ||
660 | /* ACCESS */ | |
661 | int | |
91f07168 | 662 | nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
663 | struct nfsd3_accessres *resp) |
664 | { | |
665 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
666 | if (resp->status == 0) | |
667 | *p++ = htonl(resp->access); | |
668 | return xdr_ressize_check(rqstp, p); | |
669 | } | |
670 | ||
671 | /* READLINK */ | |
672 | int | |
91f07168 | 673 | nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
674 | struct nfsd3_readlinkres *resp) |
675 | { | |
676 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
677 | if (resp->status == 0) { | |
678 | *p++ = htonl(resp->len); | |
679 | xdr_ressize_check(rqstp, p); | |
680 | rqstp->rq_res.page_len = resp->len; | |
681 | if (resp->len & 3) { | |
682 | /* need to pad the tail */ | |
1da177e4 LT |
683 | rqstp->rq_res.tail[0].iov_base = p; |
684 | *p = 0; | |
685 | rqstp->rq_res.tail[0].iov_len = 4 - (resp->len&3); | |
686 | } | |
687 | return 1; | |
688 | } else | |
689 | return xdr_ressize_check(rqstp, p); | |
690 | } | |
691 | ||
692 | /* READ */ | |
693 | int | |
91f07168 | 694 | nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
695 | struct nfsd3_readres *resp) |
696 | { | |
697 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
698 | if (resp->status == 0) { | |
699 | *p++ = htonl(resp->count); | |
700 | *p++ = htonl(resp->eof); | |
701 | *p++ = htonl(resp->count); /* xdr opaque count */ | |
702 | xdr_ressize_check(rqstp, p); | |
703 | /* now update rqstp->rq_res to reflect data aswell */ | |
704 | rqstp->rq_res.page_len = resp->count; | |
705 | if (resp->count & 3) { | |
706 | /* need to pad the tail */ | |
1da177e4 LT |
707 | rqstp->rq_res.tail[0].iov_base = p; |
708 | *p = 0; | |
709 | rqstp->rq_res.tail[0].iov_len = 4 - (resp->count & 3); | |
710 | } | |
711 | return 1; | |
712 | } else | |
713 | return xdr_ressize_check(rqstp, p); | |
714 | } | |
715 | ||
716 | /* WRITE */ | |
717 | int | |
91f07168 | 718 | nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
719 | struct nfsd3_writeres *resp) |
720 | { | |
721 | p = encode_wcc_data(rqstp, p, &resp->fh); | |
722 | if (resp->status == 0) { | |
723 | *p++ = htonl(resp->count); | |
724 | *p++ = htonl(resp->committed); | |
725 | *p++ = htonl(nfssvc_boot.tv_sec); | |
726 | *p++ = htonl(nfssvc_boot.tv_usec); | |
727 | } | |
728 | return xdr_ressize_check(rqstp, p); | |
729 | } | |
730 | ||
731 | /* CREATE, MKDIR, SYMLINK, MKNOD */ | |
732 | int | |
91f07168 | 733 | nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
734 | struct nfsd3_diropres *resp) |
735 | { | |
736 | if (resp->status == 0) { | |
737 | *p++ = xdr_one; | |
738 | p = encode_fh(p, &resp->fh); | |
739 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
740 | } | |
741 | p = encode_wcc_data(rqstp, p, &resp->dirfh); | |
742 | return xdr_ressize_check(rqstp, p); | |
743 | } | |
744 | ||
745 | /* RENAME */ | |
746 | int | |
91f07168 | 747 | nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
748 | struct nfsd3_renameres *resp) |
749 | { | |
750 | p = encode_wcc_data(rqstp, p, &resp->ffh); | |
751 | p = encode_wcc_data(rqstp, p, &resp->tfh); | |
752 | return xdr_ressize_check(rqstp, p); | |
753 | } | |
754 | ||
755 | /* LINK */ | |
756 | int | |
91f07168 | 757 | nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
758 | struct nfsd3_linkres *resp) |
759 | { | |
760 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
761 | p = encode_wcc_data(rqstp, p, &resp->tfh); | |
762 | return xdr_ressize_check(rqstp, p); | |
763 | } | |
764 | ||
765 | /* READDIR */ | |
766 | int | |
91f07168 | 767 | nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
768 | struct nfsd3_readdirres *resp) |
769 | { | |
770 | p = encode_post_op_attr(rqstp, p, &resp->fh); | |
771 | ||
772 | if (resp->status == 0) { | |
773 | /* stupid readdir cookie */ | |
774 | memcpy(p, resp->verf, 8); p += 2; | |
775 | xdr_ressize_check(rqstp, p); | |
776 | if (rqstp->rq_res.head[0].iov_len + (2<<2) > PAGE_SIZE) | |
777 | return 1; /*No room for trailer */ | |
778 | rqstp->rq_res.page_len = (resp->count) << 2; | |
779 | ||
780 | /* add the 'tail' to the end of the 'head' page - page 0. */ | |
1da177e4 LT |
781 | rqstp->rq_res.tail[0].iov_base = p; |
782 | *p++ = 0; /* no more entries */ | |
783 | *p++ = htonl(resp->common.err == nfserr_eof); | |
784 | rqstp->rq_res.tail[0].iov_len = 2<<2; | |
785 | return 1; | |
786 | } else | |
787 | return xdr_ressize_check(rqstp, p); | |
788 | } | |
789 | ||
3ee6f61c | 790 | static __be32 * |
91f07168 | 791 | encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, |
40ee5dc6 | 792 | int namlen, u64 ino) |
1da177e4 LT |
793 | { |
794 | *p++ = xdr_one; /* mark entry present */ | |
795 | p = xdr_encode_hyper(p, ino); /* file id */ | |
796 | p = xdr_encode_array(p, name, namlen);/* name length & name */ | |
797 | ||
798 | cd->offset = p; /* remember pointer */ | |
799 | p = xdr_encode_hyper(p, NFS_OFFSET_MAX);/* offset of next entry */ | |
800 | ||
801 | return p; | |
802 | } | |
803 | ||
1da177e4 LT |
804 | static int |
805 | compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, | |
806 | const char *name, int namlen) | |
807 | { | |
808 | struct svc_export *exp; | |
809 | struct dentry *dparent, *dchild; | |
810 | int rv = 0; | |
811 | ||
812 | dparent = cd->fh.fh_dentry; | |
813 | exp = cd->fh.fh_export; | |
814 | ||
1da177e4 LT |
815 | if (isdotent(name, namlen)) { |
816 | if (namlen == 2) { | |
817 | dchild = dget_parent(dparent); | |
818 | if (dchild == dparent) { | |
819 | /* filesystem root - cannot return filehandle for ".." */ | |
820 | dput(dchild); | |
8177e6d6 | 821 | return -ENOENT; |
1da177e4 LT |
822 | } |
823 | } else | |
824 | dchild = dget(dparent); | |
825 | } else | |
826 | dchild = lookup_one_len(name, dparent, namlen); | |
827 | if (IS_ERR(dchild)) | |
8177e6d6 BF |
828 | return -ENOENT; |
829 | rv = -ENOENT; | |
830 | if (d_mountpoint(dchild)) | |
831 | goto out; | |
832 | rv = fh_compose(fhp, exp, dchild, &cd->fh); | |
833 | if (rv) | |
834 | goto out; | |
835 | if (!dchild->d_inode) | |
836 | goto out; | |
837 | rv = 0; | |
838 | out: | |
1da177e4 LT |
839 | dput(dchild); |
840 | return rv; | |
841 | } | |
842 | ||
8177e6d6 BF |
843 | __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) |
844 | { | |
845 | struct svc_fh fh; | |
846 | int err; | |
847 | ||
aed100fa | 848 | fh_init(&fh, NFS3_FHSIZE); |
8177e6d6 BF |
849 | err = compose_entry_fh(cd, &fh, name, namlen); |
850 | if (err) { | |
851 | *p++ = 0; | |
852 | *p++ = 0; | |
aed100fa | 853 | goto out; |
8177e6d6 BF |
854 | } |
855 | p = encode_post_op_attr(cd->rqstp, p, &fh); | |
856 | *p++ = xdr_one; /* yes, a file handle follows */ | |
857 | p = encode_fh(p, &fh); | |
aed100fa | 858 | out: |
8177e6d6 BF |
859 | fh_put(&fh); |
860 | return p; | |
861 | } | |
862 | ||
1da177e4 LT |
863 | /* |
864 | * Encode a directory entry. This one works for both normal readdir | |
865 | * and readdirplus. | |
866 | * The normal readdir reply requires 2 (fileid) + 1 (stringlen) | |
867 | * + string + 2 (cookie) + 1 (next) words, i.e. 6 + strlen. | |
868 | * | |
869 | * The readdirplus baggage is 1+21 words for post_op_attr, plus the | |
870 | * file handle. | |
871 | */ | |
872 | ||
873 | #define NFS3_ENTRY_BAGGAGE (2 + 1 + 2 + 1) | |
874 | #define NFS3_ENTRYPLUS_BAGGAGE (1 + 21 + 1 + (NFS3_FHSIZE >> 2)) | |
875 | static int | |
598b9a56 | 876 | encode_entry(struct readdir_cd *ccd, const char *name, int namlen, |
40ee5dc6 | 877 | loff_t offset, u64 ino, unsigned int d_type, int plus) |
1da177e4 LT |
878 | { |
879 | struct nfsd3_readdirres *cd = container_of(ccd, struct nfsd3_readdirres, | |
880 | common); | |
91f07168 | 881 | __be32 *p = cd->buffer; |
1da177e4 LT |
882 | caddr_t curr_page_addr = NULL; |
883 | int pn; /* current page number */ | |
884 | int slen; /* string (name) length */ | |
885 | int elen; /* estimated entry length in words */ | |
886 | int num_entry_words = 0; /* actual number of words */ | |
887 | ||
888 | if (cd->offset) { | |
889 | u64 offset64 = offset; | |
890 | ||
891 | if (unlikely(cd->offset1)) { | |
892 | /* we ended up with offset on a page boundary */ | |
893 | *cd->offset = htonl(offset64 >> 32); | |
894 | *cd->offset1 = htonl(offset64 & 0xffffffff); | |
895 | cd->offset1 = NULL; | |
896 | } else { | |
598b9a56 | 897 | xdr_encode_hyper(cd->offset, offset64); |
1da177e4 LT |
898 | } |
899 | } | |
900 | ||
901 | /* | |
902 | dprintk("encode_entry(%.*s @%ld%s)\n", | |
903 | namlen, name, (long) offset, plus? " plus" : ""); | |
904 | */ | |
905 | ||
906 | /* truncate filename if too long */ | |
907 | if (namlen > NFS3_MAXNAMLEN) | |
908 | namlen = NFS3_MAXNAMLEN; | |
909 | ||
910 | slen = XDR_QUADLEN(namlen); | |
911 | elen = slen + NFS3_ENTRY_BAGGAGE | |
912 | + (plus? NFS3_ENTRYPLUS_BAGGAGE : 0); | |
913 | ||
914 | if (cd->buflen < elen) { | |
915 | cd->common.err = nfserr_toosmall; | |
916 | return -EINVAL; | |
917 | } | |
918 | ||
919 | /* determine which page in rq_respages[] we are currently filling */ | |
920 | for (pn=1; pn < cd->rqstp->rq_resused; pn++) { | |
921 | curr_page_addr = page_address(cd->rqstp->rq_respages[pn]); | |
922 | ||
923 | if (((caddr_t)cd->buffer >= curr_page_addr) && | |
924 | ((caddr_t)cd->buffer < curr_page_addr + PAGE_SIZE)) | |
925 | break; | |
926 | } | |
927 | ||
928 | if ((caddr_t)(cd->buffer + elen) < (curr_page_addr + PAGE_SIZE)) { | |
929 | /* encode entry in current page */ | |
930 | ||
931 | p = encode_entry_baggage(cd, p, name, namlen, ino); | |
932 | ||
8177e6d6 BF |
933 | if (plus) |
934 | p = encode_entryplus_baggage(cd, p, name, namlen); | |
1da177e4 LT |
935 | num_entry_words = p - cd->buffer; |
936 | } else if (cd->rqstp->rq_respages[pn+1] != NULL) { | |
937 | /* temporarily encode entry into next page, then move back to | |
938 | * current and next page in rq_respages[] */ | |
91f07168 | 939 | __be32 *p1, *tmp; |
1da177e4 LT |
940 | int len1, len2; |
941 | ||
942 | /* grab next page for temporary storage of entry */ | |
943 | p1 = tmp = page_address(cd->rqstp->rq_respages[pn+1]); | |
944 | ||
945 | p1 = encode_entry_baggage(cd, p1, name, namlen, ino); | |
946 | ||
8177e6d6 | 947 | if (plus) |
479c2553 | 948 | p1 = encode_entryplus_baggage(cd, p1, name, namlen); |
1da177e4 LT |
949 | |
950 | /* determine entry word length and lengths to go in pages */ | |
951 | num_entry_words = p1 - tmp; | |
952 | len1 = curr_page_addr + PAGE_SIZE - (caddr_t)cd->buffer; | |
953 | if ((num_entry_words << 2) < len1) { | |
954 | /* the actual number of words in the entry is less | |
955 | * than elen and can still fit in the current page | |
956 | */ | |
957 | memmove(p, tmp, num_entry_words << 2); | |
958 | p += num_entry_words; | |
959 | ||
960 | /* update offset */ | |
961 | cd->offset = cd->buffer + (cd->offset - tmp); | |
962 | } else { | |
963 | unsigned int offset_r = (cd->offset - tmp) << 2; | |
964 | ||
965 | /* update pointer to offset location. | |
966 | * This is a 64bit quantity, so we need to | |
967 | * deal with 3 cases: | |
968 | * - entirely in first page | |
969 | * - entirely in second page | |
970 | * - 4 bytes in each page | |
971 | */ | |
972 | if (offset_r + 8 <= len1) { | |
973 | cd->offset = p + (cd->offset - tmp); | |
974 | } else if (offset_r >= len1) { | |
975 | cd->offset -= len1 >> 2; | |
976 | } else { | |
977 | /* sitting on the fence */ | |
978 | BUG_ON(offset_r != len1 - 4); | |
979 | cd->offset = p + (cd->offset - tmp); | |
980 | cd->offset1 = tmp; | |
981 | } | |
982 | ||
983 | len2 = (num_entry_words << 2) - len1; | |
984 | ||
985 | /* move from temp page to current and next pages */ | |
986 | memmove(p, tmp, len1); | |
987 | memmove(tmp, (caddr_t)tmp+len1, len2); | |
988 | ||
989 | p = tmp + (len2 >> 2); | |
990 | } | |
991 | } | |
992 | else { | |
993 | cd->common.err = nfserr_toosmall; | |
994 | return -EINVAL; | |
995 | } | |
996 | ||
997 | cd->buflen -= num_entry_words; | |
998 | cd->buffer = p; | |
999 | cd->common.err = nfs_ok; | |
1000 | return 0; | |
1001 | ||
1002 | } | |
1003 | ||
1004 | int | |
a0ad13ef N |
1005 | nfs3svc_encode_entry(void *cd, const char *name, |
1006 | int namlen, loff_t offset, u64 ino, unsigned int d_type) | |
1da177e4 LT |
1007 | { |
1008 | return encode_entry(cd, name, namlen, offset, ino, d_type, 0); | |
1009 | } | |
1010 | ||
1011 | int | |
a0ad13ef N |
1012 | nfs3svc_encode_entry_plus(void *cd, const char *name, |
1013 | int namlen, loff_t offset, u64 ino, | |
1014 | unsigned int d_type) | |
1da177e4 LT |
1015 | { |
1016 | return encode_entry(cd, name, namlen, offset, ino, d_type, 1); | |
1017 | } | |
1018 | ||
1019 | /* FSSTAT */ | |
1020 | int | |
91f07168 | 1021 | nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1022 | struct nfsd3_fsstatres *resp) |
1023 | { | |
1024 | struct kstatfs *s = &resp->stats; | |
1025 | u64 bs = s->f_bsize; | |
1026 | ||
1027 | *p++ = xdr_zero; /* no post_op_attr */ | |
1028 | ||
1029 | if (resp->status == 0) { | |
1030 | p = xdr_encode_hyper(p, bs * s->f_blocks); /* total bytes */ | |
1031 | p = xdr_encode_hyper(p, bs * s->f_bfree); /* free bytes */ | |
1032 | p = xdr_encode_hyper(p, bs * s->f_bavail); /* user available bytes */ | |
1033 | p = xdr_encode_hyper(p, s->f_files); /* total inodes */ | |
1034 | p = xdr_encode_hyper(p, s->f_ffree); /* free inodes */ | |
1035 | p = xdr_encode_hyper(p, s->f_ffree); /* user available inodes */ | |
1036 | *p++ = htonl(resp->invarsec); /* mean unchanged time */ | |
1037 | } | |
1038 | return xdr_ressize_check(rqstp, p); | |
1039 | } | |
1040 | ||
1041 | /* FSINFO */ | |
1042 | int | |
91f07168 | 1043 | nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1044 | struct nfsd3_fsinfores *resp) |
1045 | { | |
1046 | *p++ = xdr_zero; /* no post_op_attr */ | |
1047 | ||
1048 | if (resp->status == 0) { | |
1049 | *p++ = htonl(resp->f_rtmax); | |
1050 | *p++ = htonl(resp->f_rtpref); | |
1051 | *p++ = htonl(resp->f_rtmult); | |
1052 | *p++ = htonl(resp->f_wtmax); | |
1053 | *p++ = htonl(resp->f_wtpref); | |
1054 | *p++ = htonl(resp->f_wtmult); | |
1055 | *p++ = htonl(resp->f_dtpref); | |
1056 | p = xdr_encode_hyper(p, resp->f_maxfilesize); | |
1057 | *p++ = xdr_one; | |
1058 | *p++ = xdr_zero; | |
1059 | *p++ = htonl(resp->f_properties); | |
1060 | } | |
1061 | ||
1062 | return xdr_ressize_check(rqstp, p); | |
1063 | } | |
1064 | ||
1065 | /* PATHCONF */ | |
1066 | int | |
91f07168 | 1067 | nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1068 | struct nfsd3_pathconfres *resp) |
1069 | { | |
1070 | *p++ = xdr_zero; /* no post_op_attr */ | |
1071 | ||
1072 | if (resp->status == 0) { | |
1073 | *p++ = htonl(resp->p_link_max); | |
1074 | *p++ = htonl(resp->p_name_max); | |
1075 | *p++ = htonl(resp->p_no_trunc); | |
1076 | *p++ = htonl(resp->p_chown_restricted); | |
1077 | *p++ = htonl(resp->p_case_insensitive); | |
1078 | *p++ = htonl(resp->p_case_preserving); | |
1079 | } | |
1080 | ||
1081 | return xdr_ressize_check(rqstp, p); | |
1082 | } | |
1083 | ||
1084 | /* COMMIT */ | |
1085 | int | |
91f07168 | 1086 | nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1087 | struct nfsd3_commitres *resp) |
1088 | { | |
1089 | p = encode_wcc_data(rqstp, p, &resp->fh); | |
1090 | /* Write verifier */ | |
1091 | if (resp->status == 0) { | |
1092 | *p++ = htonl(nfssvc_boot.tv_sec); | |
1093 | *p++ = htonl(nfssvc_boot.tv_usec); | |
1094 | } | |
1095 | return xdr_ressize_check(rqstp, p); | |
1096 | } | |
1097 | ||
1098 | /* | |
1099 | * XDR release functions | |
1100 | */ | |
1101 | int | |
91f07168 | 1102 | nfs3svc_release_fhandle(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1103 | struct nfsd3_attrstat *resp) |
1104 | { | |
1105 | fh_put(&resp->fh); | |
1106 | return 1; | |
1107 | } | |
1108 | ||
1109 | int | |
91f07168 | 1110 | nfs3svc_release_fhandle2(struct svc_rqst *rqstp, __be32 *p, |
1da177e4 LT |
1111 | struct nfsd3_fhandle_pair *resp) |
1112 | { | |
1113 | fh_put(&resp->fh1); | |
1114 | fh_put(&resp->fh2); | |
1115 | return 1; | |
1116 | } |