1 // SPDX-License-Identifier: GPL-2.0
3 * Process version 3 NFS requests.
5 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
9 #include <linux/ext2_fs.h>
10 #include <linux/magic.h>
11 #include <linux/namei.h>
16 #include "filecache.h"
18 #define NFSDDBG_FACILITY NFSDDBG_PROC
20 static int nfs3_ftypes[] = {
27 S_IFSOCK, /* NF3SOCK */
28 S_IFIFO, /* NF3FIFO */
35 nfsd3_proc_null(struct svc_rqst *rqstp)
41 * Get a file's attributes
44 nfsd3_proc_getattr(struct svc_rqst *rqstp)
46 struct nfsd_fhandle *argp = rqstp->rq_argp;
47 struct nfsd3_attrstat *resp = rqstp->rq_resp;
49 dprintk("nfsd: GETATTR(3) %s\n",
50 SVCFH_fmt(&argp->fh));
52 fh_copy(&resp->fh, &argp->fh);
53 resp->status = fh_verify(rqstp, &resp->fh, 0,
54 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
55 if (resp->status != nfs_ok)
58 resp->status = fh_getattr(&resp->fh, &resp->stat);
64 * Set a file's attributes
67 nfsd3_proc_setattr(struct svc_rqst *rqstp)
69 struct nfsd3_sattrargs *argp = rqstp->rq_argp;
70 struct nfsd3_attrstat *resp = rqstp->rq_resp;
71 struct nfsd_attrs attrs = {
72 .na_iattr = &argp->attrs,
74 const struct timespec64 *guardtime = NULL;
76 dprintk("nfsd: SETATTR(3) %s\n",
77 SVCFH_fmt(&argp->fh));
79 fh_copy(&resp->fh, &argp->fh);
80 if (argp->check_guard)
81 guardtime = &argp->guardtime;
82 resp->status = nfsd_setattr(rqstp, &resp->fh, &attrs, guardtime);
87 * Look up a path name component
90 nfsd3_proc_lookup(struct svc_rqst *rqstp)
92 struct nfsd3_diropargs *argp = rqstp->rq_argp;
93 struct nfsd3_diropres *resp = rqstp->rq_resp;
95 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
100 fh_copy(&resp->dirfh, &argp->fh);
101 fh_init(&resp->fh, NFS3_FHSIZE);
103 resp->status = nfsd_lookup(rqstp, &resp->dirfh,
104 argp->name, argp->len,
113 nfsd3_proc_access(struct svc_rqst *rqstp)
115 struct nfsd3_accessargs *argp = rqstp->rq_argp;
116 struct nfsd3_accessres *resp = rqstp->rq_resp;
118 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
119 SVCFH_fmt(&argp->fh),
122 fh_copy(&resp->fh, &argp->fh);
123 resp->access = argp->access;
124 resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
132 nfsd3_proc_readlink(struct svc_rqst *rqstp)
134 struct nfsd_fhandle *argp = rqstp->rq_argp;
135 struct nfsd3_readlinkres *resp = rqstp->rq_resp;
137 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
139 /* Read the symlink. */
140 fh_copy(&resp->fh, &argp->fh);
141 resp->len = NFS3_MAXPATHLEN;
142 resp->pages = rqstp->rq_next_page++;
143 resp->status = nfsd_readlink(rqstp, &resp->fh,
144 page_address(*resp->pages), &resp->len);
149 * Read a portion of a file.
152 nfsd3_proc_read(struct svc_rqst *rqstp)
154 struct nfsd3_readargs *argp = rqstp->rq_argp;
155 struct nfsd3_readres *resp = rqstp->rq_resp;
157 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
158 SVCFH_fmt(&argp->fh),
159 (unsigned long) argp->count,
160 (unsigned long long) argp->offset);
162 argp->count = min_t(u32, argp->count, svc_max_payload(rqstp));
163 argp->count = min_t(u32, argp->count, rqstp->rq_res.buflen);
164 if (argp->offset > (u64)OFFSET_MAX)
165 argp->offset = (u64)OFFSET_MAX;
166 if (argp->offset + argp->count > (u64)OFFSET_MAX)
167 argp->count = (u64)OFFSET_MAX - argp->offset;
169 resp->pages = rqstp->rq_next_page;
171 /* Obtain buffer pointer for payload.
172 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
173 * + 1 (xdr opaque byte count) = 26
175 resp->count = argp->count;
176 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3) << 2) +
179 fh_copy(&resp->fh, &argp->fh);
180 resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
181 &resp->count, &resp->eof);
186 * Write data to a file
189 nfsd3_proc_write(struct svc_rqst *rqstp)
191 struct nfsd3_writeargs *argp = rqstp->rq_argp;
192 struct nfsd3_writeres *resp = rqstp->rq_resp;
193 unsigned long cnt = argp->len;
196 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
197 SVCFH_fmt(&argp->fh),
199 (unsigned long long) argp->offset,
200 argp->stable ? " stable" : "");
202 resp->status = nfserr_fbig;
203 if (argp->offset > (u64)OFFSET_MAX ||
204 argp->offset + argp->len > (u64)OFFSET_MAX)
207 fh_copy(&resp->fh, &argp->fh);
208 resp->committed = argp->stable;
209 nvecs = svc_fill_write_vector(rqstp, &argp->payload);
211 resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
212 rqstp->rq_vec, nvecs, &cnt,
213 resp->committed, resp->verf);
219 * Implement NFSv3's unchecked, guarded, and exclusive CREATE
220 * semantics for regular files. Except for the created file,
221 * this operation is stateless on the server.
223 * Upon return, caller must release @fhp and @resfhp.
226 nfsd3_create_file(struct svc_rqst *rqstp, struct svc_fh *fhp,
227 struct svc_fh *resfhp, struct nfsd3_createargs *argp)
229 struct iattr *iap = &argp->attrs;
230 struct dentry *parent, *child;
231 struct nfsd_attrs attrs = {
234 __u32 v_mtime, v_atime;
239 if (isdotent(argp->name, argp->len))
241 if (!(iap->ia_valid & ATTR_MODE))
244 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
245 if (status != nfs_ok)
248 parent = fhp->fh_dentry;
249 inode = d_inode(parent);
251 host_err = fh_want_write(fhp);
253 return nfserrno(host_err);
255 inode_lock_nested(inode, I_MUTEX_PARENT);
257 child = lookup_one_len(argp->name, parent, argp->len);
259 status = nfserrno(PTR_ERR(child));
263 if (d_really_is_negative(child)) {
264 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
265 if (status != nfs_ok)
269 status = fh_compose(resfhp, fhp->fh_export, child, fhp);
270 if (status != nfs_ok)
275 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
276 u32 *verifier = (u32 *)argp->verf;
279 * Solaris 7 gets confused (bugid 4218508) if these have
280 * the high bit set, as do xfs filesystems without the
281 * "bigtime" feature. So just clear the high bits.
283 v_mtime = verifier[0] & 0x7fffffff;
284 v_atime = verifier[1] & 0x7fffffff;
287 if (d_really_is_positive(child)) {
290 switch (argp->createmode) {
291 case NFS3_CREATE_UNCHECKED:
292 if (!d_is_reg(child))
294 iap->ia_valid &= ATTR_SIZE;
296 case NFS3_CREATE_GUARDED:
297 status = nfserr_exist;
299 case NFS3_CREATE_EXCLUSIVE:
300 if (inode_get_mtime_sec(d_inode(child)) == v_mtime &&
301 inode_get_atime_sec(d_inode(child)) == v_atime &&
302 d_inode(child)->i_size == 0) {
305 status = nfserr_exist;
310 if (!IS_POSIXACL(inode))
311 iap->ia_mode &= ~current_umask();
313 status = fh_fill_pre_attrs(fhp);
314 if (status != nfs_ok)
316 host_err = vfs_create(&nop_mnt_idmap, inode, child, iap->ia_mode, true);
318 status = nfserrno(host_err);
321 fh_fill_post_attrs(fhp);
323 /* A newly created file already has a file size of zero. */
324 if ((iap->ia_valid & ATTR_SIZE) && (iap->ia_size == 0))
325 iap->ia_valid &= ~ATTR_SIZE;
326 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
327 iap->ia_valid = ATTR_MTIME | ATTR_ATIME |
328 ATTR_MTIME_SET | ATTR_ATIME_SET;
329 iap->ia_mtime.tv_sec = v_mtime;
330 iap->ia_atime.tv_sec = v_atime;
331 iap->ia_mtime.tv_nsec = 0;
332 iap->ia_atime.tv_nsec = 0;
336 status = nfsd_create_setattr(rqstp, fhp, resfhp, &attrs);
340 if (child && !IS_ERR(child))
347 nfsd3_proc_create(struct svc_rqst *rqstp)
349 struct nfsd3_createargs *argp = rqstp->rq_argp;
350 struct nfsd3_diropres *resp = rqstp->rq_resp;
351 svc_fh *dirfhp, *newfhp;
353 dprintk("nfsd: CREATE(3) %s %.*s\n",
354 SVCFH_fmt(&argp->fh),
358 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
359 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
361 resp->status = nfsd3_create_file(rqstp, dirfhp, newfhp, argp);
366 * Make directory. This operation is not idempotent.
369 nfsd3_proc_mkdir(struct svc_rqst *rqstp)
371 struct nfsd3_createargs *argp = rqstp->rq_argp;
372 struct nfsd3_diropres *resp = rqstp->rq_resp;
373 struct nfsd_attrs attrs = {
374 .na_iattr = &argp->attrs,
377 dprintk("nfsd: MKDIR(3) %s %.*s\n",
378 SVCFH_fmt(&argp->fh),
382 argp->attrs.ia_valid &= ~ATTR_SIZE;
383 fh_copy(&resp->dirfh, &argp->fh);
384 fh_init(&resp->fh, NFS3_FHSIZE);
385 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
386 &attrs, S_IFDIR, 0, &resp->fh);
391 nfsd3_proc_symlink(struct svc_rqst *rqstp)
393 struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
394 struct nfsd3_diropres *resp = rqstp->rq_resp;
395 struct nfsd_attrs attrs = {
396 .na_iattr = &argp->attrs,
399 if (argp->tlen == 0) {
400 resp->status = nfserr_inval;
403 if (argp->tlen > NFS3_MAXPATHLEN) {
404 resp->status = nfserr_nametoolong;
408 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
409 page_address(rqstp->rq_arg.pages[0]),
411 if (IS_ERR(argp->tname)) {
412 resp->status = nfserrno(PTR_ERR(argp->tname));
416 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
417 SVCFH_fmt(&argp->ffh),
418 argp->flen, argp->fname,
419 argp->tlen, argp->tname);
421 fh_copy(&resp->dirfh, &argp->ffh);
422 fh_init(&resp->fh, NFS3_FHSIZE);
423 resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
424 argp->flen, argp->tname, &attrs, &resp->fh);
431 * Make socket/fifo/device.
434 nfsd3_proc_mknod(struct svc_rqst *rqstp)
436 struct nfsd3_mknodargs *argp = rqstp->rq_argp;
437 struct nfsd3_diropres *resp = rqstp->rq_resp;
438 struct nfsd_attrs attrs = {
439 .na_iattr = &argp->attrs,
444 dprintk("nfsd: MKNOD(3) %s %.*s\n",
445 SVCFH_fmt(&argp->fh),
449 fh_copy(&resp->dirfh, &argp->fh);
450 fh_init(&resp->fh, NFS3_FHSIZE);
452 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
453 rdev = MKDEV(argp->major, argp->minor);
454 if (MAJOR(rdev) != argp->major ||
455 MINOR(rdev) != argp->minor) {
456 resp->status = nfserr_inval;
459 } else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
460 resp->status = nfserr_badtype;
464 type = nfs3_ftypes[argp->ftype];
465 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
466 &attrs, type, rdev, &resp->fh);
472 * Remove file/fifo/socket etc.
475 nfsd3_proc_remove(struct svc_rqst *rqstp)
477 struct nfsd3_diropargs *argp = rqstp->rq_argp;
478 struct nfsd3_attrstat *resp = rqstp->rq_resp;
480 dprintk("nfsd: REMOVE(3) %s %.*s\n",
481 SVCFH_fmt(&argp->fh),
485 /* Unlink. -S_IFDIR means file must not be a directory */
486 fh_copy(&resp->fh, &argp->fh);
487 resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
488 argp->name, argp->len);
496 nfsd3_proc_rmdir(struct svc_rqst *rqstp)
498 struct nfsd3_diropargs *argp = rqstp->rq_argp;
499 struct nfsd3_attrstat *resp = rqstp->rq_resp;
501 dprintk("nfsd: RMDIR(3) %s %.*s\n",
502 SVCFH_fmt(&argp->fh),
506 fh_copy(&resp->fh, &argp->fh);
507 resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
508 argp->name, argp->len);
513 nfsd3_proc_rename(struct svc_rqst *rqstp)
515 struct nfsd3_renameargs *argp = rqstp->rq_argp;
516 struct nfsd3_renameres *resp = rqstp->rq_resp;
518 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
519 SVCFH_fmt(&argp->ffh),
522 dprintk("nfsd: -> %s %.*s\n",
523 SVCFH_fmt(&argp->tfh),
527 fh_copy(&resp->ffh, &argp->ffh);
528 fh_copy(&resp->tfh, &argp->tfh);
529 resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
530 &resp->tfh, argp->tname, argp->tlen);
535 nfsd3_proc_link(struct svc_rqst *rqstp)
537 struct nfsd3_linkargs *argp = rqstp->rq_argp;
538 struct nfsd3_linkres *resp = rqstp->rq_resp;
540 dprintk("nfsd: LINK(3) %s ->\n",
541 SVCFH_fmt(&argp->ffh));
542 dprintk("nfsd: -> %s %.*s\n",
543 SVCFH_fmt(&argp->tfh),
547 fh_copy(&resp->fh, &argp->ffh);
548 fh_copy(&resp->tfh, &argp->tfh);
549 resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
554 static void nfsd3_init_dirlist_pages(struct svc_rqst *rqstp,
555 struct nfsd3_readdirres *resp,
558 struct xdr_buf *buf = &resp->dirlist;
559 struct xdr_stream *xdr = &resp->xdr;
560 unsigned int sendbuf = min_t(unsigned int, rqstp->rq_res.buflen,
561 svc_max_payload(rqstp));
563 memset(buf, 0, sizeof(*buf));
565 /* Reserve room for the NULL ptr & eof flag (-2 words) */
566 buf->buflen = clamp(count, (u32)(XDR_UNIT * 2), sendbuf);
567 buf->buflen -= XDR_UNIT * 2;
568 buf->pages = rqstp->rq_next_page;
569 rqstp->rq_next_page += (buf->buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
571 xdr_init_encode_pages(xdr, buf, buf->pages, NULL);
575 * Read a portion of a directory.
578 nfsd3_proc_readdir(struct svc_rqst *rqstp)
580 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
581 struct nfsd3_readdirres *resp = rqstp->rq_resp;
584 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
585 SVCFH_fmt(&argp->fh),
586 argp->count, (u32) argp->cookie);
588 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
590 fh_copy(&resp->fh, &argp->fh);
591 resp->common.err = nfs_ok;
592 resp->cookie_offset = 0;
594 offset = argp->cookie;
595 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
596 &resp->common, nfs3svc_encode_entry3);
597 memcpy(resp->verf, argp->verf, 8);
598 nfs3svc_encode_cookie3(resp, offset);
600 /* Recycle only pages that were part of the reply */
601 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
607 * Read a portion of a directory, including file handles and attrs.
608 * For now, we choose to ignore the dircount parameter.
611 nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
613 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
614 struct nfsd3_readdirres *resp = rqstp->rq_resp;
617 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
618 SVCFH_fmt(&argp->fh),
619 argp->count, (u32) argp->cookie);
621 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
623 fh_copy(&resp->fh, &argp->fh);
624 resp->common.err = nfs_ok;
625 resp->cookie_offset = 0;
627 offset = argp->cookie;
629 resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
630 if (resp->status != nfs_ok)
633 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
634 resp->status = nfserr_notsupp;
638 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
639 &resp->common, nfs3svc_encode_entryplus3);
640 memcpy(resp->verf, argp->verf, 8);
641 nfs3svc_encode_cookie3(resp, offset);
643 /* Recycle only pages that were part of the reply */
644 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
651 * Get file system stats
654 nfsd3_proc_fsstat(struct svc_rqst *rqstp)
656 struct nfsd_fhandle *argp = rqstp->rq_argp;
657 struct nfsd3_fsstatres *resp = rqstp->rq_resp;
659 dprintk("nfsd: FSSTAT(3) %s\n",
660 SVCFH_fmt(&argp->fh));
662 resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
668 * Get file system info
671 nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
673 struct nfsd_fhandle *argp = rqstp->rq_argp;
674 struct nfsd3_fsinfores *resp = rqstp->rq_resp;
675 u32 max_blocksize = svc_max_payload(rqstp);
677 dprintk("nfsd: FSINFO(3) %s\n",
678 SVCFH_fmt(&argp->fh));
680 resp->f_rtmax = max_blocksize;
681 resp->f_rtpref = max_blocksize;
682 resp->f_rtmult = PAGE_SIZE;
683 resp->f_wtmax = max_blocksize;
684 resp->f_wtpref = max_blocksize;
685 resp->f_wtmult = PAGE_SIZE;
686 resp->f_dtpref = max_blocksize;
687 resp->f_maxfilesize = ~(u32) 0;
688 resp->f_properties = NFS3_FSF_DEFAULT;
690 resp->status = fh_verify(rqstp, &argp->fh, 0,
691 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
693 /* Check special features of the file system. May request
694 * different read/write sizes for file systems known to have
695 * problems with large blocks */
696 if (resp->status == nfs_ok) {
697 struct super_block *sb = argp->fh.fh_dentry->d_sb;
699 /* Note that we don't care for remote fs's here */
700 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
701 resp->f_properties = NFS3_FSF_BILLYBOY;
703 resp->f_maxfilesize = sb->s_maxbytes;
711 * Get pathconf info for the specified file
714 nfsd3_proc_pathconf(struct svc_rqst *rqstp)
716 struct nfsd_fhandle *argp = rqstp->rq_argp;
717 struct nfsd3_pathconfres *resp = rqstp->rq_resp;
719 dprintk("nfsd: PATHCONF(3) %s\n",
720 SVCFH_fmt(&argp->fh));
722 /* Set default pathconf */
723 resp->p_link_max = 255; /* at least */
724 resp->p_name_max = 255; /* at least */
725 resp->p_no_trunc = 0;
726 resp->p_chown_restricted = 1;
727 resp->p_case_insensitive = 0;
728 resp->p_case_preserving = 1;
730 resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
732 if (resp->status == nfs_ok) {
733 struct super_block *sb = argp->fh.fh_dentry->d_sb;
735 /* Note that we don't care for remote fs's here */
736 switch (sb->s_magic) {
737 case EXT2_SUPER_MAGIC:
738 resp->p_link_max = EXT2_LINK_MAX;
739 resp->p_name_max = EXT2_NAME_LEN;
741 case MSDOS_SUPER_MAGIC:
742 resp->p_case_insensitive = 1;
743 resp->p_case_preserving = 0;
753 * Commit a file (range) to stable storage.
756 nfsd3_proc_commit(struct svc_rqst *rqstp)
758 struct nfsd3_commitargs *argp = rqstp->rq_argp;
759 struct nfsd3_commitres *resp = rqstp->rq_resp;
760 struct nfsd_file *nf;
762 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
763 SVCFH_fmt(&argp->fh),
765 (unsigned long long) argp->offset);
767 fh_copy(&resp->fh, &argp->fh);
768 resp->status = nfsd_file_acquire_gc(rqstp, &resp->fh, NFSD_MAY_WRITE |
769 NFSD_MAY_NOT_BREAK_LEASE, &nf);
772 resp->status = nfsd_commit(rqstp, &resp->fh, nf, argp->offset,
773 argp->count, resp->verf);
781 * NFSv3 Server procedures.
782 * Only the results of non-idempotent operations are cached.
784 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
785 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
786 #define nfsd3_mkdirargs nfsd3_createargs
787 #define nfsd3_readdirplusargs nfsd3_readdirargs
788 #define nfsd3_fhandleargs nfsd_fhandle
789 #define nfsd3_attrstatres nfsd3_attrstat
790 #define nfsd3_wccstatres nfsd3_attrstat
791 #define nfsd3_createres nfsd3_diropres
793 #define ST 1 /* status*/
794 #define FH 17 /* filehandle with length */
795 #define AT 21 /* attributes */
796 #define pAT (1+AT) /* post attributes - conditional */
797 #define WC (7+pAT) /* WCC attributes */
799 static const struct svc_procedure nfsd_procedures3[22] = {
801 .pc_func = nfsd3_proc_null,
802 .pc_decode = nfssvc_decode_voidarg,
803 .pc_encode = nfssvc_encode_voidres,
804 .pc_argsize = sizeof(struct nfsd_voidargs),
805 .pc_argzero = sizeof(struct nfsd_voidargs),
806 .pc_ressize = sizeof(struct nfsd_voidres),
807 .pc_cachetype = RC_NOCACHE,
811 [NFS3PROC_GETATTR] = {
812 .pc_func = nfsd3_proc_getattr,
813 .pc_decode = nfs3svc_decode_fhandleargs,
814 .pc_encode = nfs3svc_encode_getattrres,
815 .pc_release = nfs3svc_release_fhandle,
816 .pc_argsize = sizeof(struct nfsd_fhandle),
817 .pc_argzero = sizeof(struct nfsd_fhandle),
818 .pc_ressize = sizeof(struct nfsd3_attrstatres),
819 .pc_cachetype = RC_NOCACHE,
820 .pc_xdrressize = ST+AT,
821 .pc_name = "GETATTR",
823 [NFS3PROC_SETATTR] = {
824 .pc_func = nfsd3_proc_setattr,
825 .pc_decode = nfs3svc_decode_sattrargs,
826 .pc_encode = nfs3svc_encode_wccstatres,
827 .pc_release = nfs3svc_release_fhandle,
828 .pc_argsize = sizeof(struct nfsd3_sattrargs),
829 .pc_argzero = sizeof(struct nfsd3_sattrargs),
830 .pc_ressize = sizeof(struct nfsd3_wccstatres),
831 .pc_cachetype = RC_REPLBUFF,
832 .pc_xdrressize = ST+WC,
833 .pc_name = "SETATTR",
835 [NFS3PROC_LOOKUP] = {
836 .pc_func = nfsd3_proc_lookup,
837 .pc_decode = nfs3svc_decode_diropargs,
838 .pc_encode = nfs3svc_encode_lookupres,
839 .pc_release = nfs3svc_release_fhandle2,
840 .pc_argsize = sizeof(struct nfsd3_diropargs),
841 .pc_argzero = sizeof(struct nfsd3_diropargs),
842 .pc_ressize = sizeof(struct nfsd3_diropres),
843 .pc_cachetype = RC_NOCACHE,
844 .pc_xdrressize = ST+FH+pAT+pAT,
847 [NFS3PROC_ACCESS] = {
848 .pc_func = nfsd3_proc_access,
849 .pc_decode = nfs3svc_decode_accessargs,
850 .pc_encode = nfs3svc_encode_accessres,
851 .pc_release = nfs3svc_release_fhandle,
852 .pc_argsize = sizeof(struct nfsd3_accessargs),
853 .pc_argzero = sizeof(struct nfsd3_accessargs),
854 .pc_ressize = sizeof(struct nfsd3_accessres),
855 .pc_cachetype = RC_NOCACHE,
856 .pc_xdrressize = ST+pAT+1,
859 [NFS3PROC_READLINK] = {
860 .pc_func = nfsd3_proc_readlink,
861 .pc_decode = nfs3svc_decode_fhandleargs,
862 .pc_encode = nfs3svc_encode_readlinkres,
863 .pc_release = nfs3svc_release_fhandle,
864 .pc_argsize = sizeof(struct nfsd_fhandle),
865 .pc_argzero = sizeof(struct nfsd_fhandle),
866 .pc_ressize = sizeof(struct nfsd3_readlinkres),
867 .pc_cachetype = RC_NOCACHE,
868 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
869 .pc_name = "READLINK",
872 .pc_func = nfsd3_proc_read,
873 .pc_decode = nfs3svc_decode_readargs,
874 .pc_encode = nfs3svc_encode_readres,
875 .pc_release = nfs3svc_release_fhandle,
876 .pc_argsize = sizeof(struct nfsd3_readargs),
877 .pc_argzero = sizeof(struct nfsd3_readargs),
878 .pc_ressize = sizeof(struct nfsd3_readres),
879 .pc_cachetype = RC_NOCACHE,
880 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
884 .pc_func = nfsd3_proc_write,
885 .pc_decode = nfs3svc_decode_writeargs,
886 .pc_encode = nfs3svc_encode_writeres,
887 .pc_release = nfs3svc_release_fhandle,
888 .pc_argsize = sizeof(struct nfsd3_writeargs),
889 .pc_argzero = sizeof(struct nfsd3_writeargs),
890 .pc_ressize = sizeof(struct nfsd3_writeres),
891 .pc_cachetype = RC_REPLBUFF,
892 .pc_xdrressize = ST+WC+4,
895 [NFS3PROC_CREATE] = {
896 .pc_func = nfsd3_proc_create,
897 .pc_decode = nfs3svc_decode_createargs,
898 .pc_encode = nfs3svc_encode_createres,
899 .pc_release = nfs3svc_release_fhandle2,
900 .pc_argsize = sizeof(struct nfsd3_createargs),
901 .pc_argzero = sizeof(struct nfsd3_createargs),
902 .pc_ressize = sizeof(struct nfsd3_createres),
903 .pc_cachetype = RC_REPLBUFF,
904 .pc_xdrressize = ST+(1+FH+pAT)+WC,
908 .pc_func = nfsd3_proc_mkdir,
909 .pc_decode = nfs3svc_decode_mkdirargs,
910 .pc_encode = nfs3svc_encode_createres,
911 .pc_release = nfs3svc_release_fhandle2,
912 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
913 .pc_argzero = sizeof(struct nfsd3_mkdirargs),
914 .pc_ressize = sizeof(struct nfsd3_createres),
915 .pc_cachetype = RC_REPLBUFF,
916 .pc_xdrressize = ST+(1+FH+pAT)+WC,
919 [NFS3PROC_SYMLINK] = {
920 .pc_func = nfsd3_proc_symlink,
921 .pc_decode = nfs3svc_decode_symlinkargs,
922 .pc_encode = nfs3svc_encode_createres,
923 .pc_release = nfs3svc_release_fhandle2,
924 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
925 .pc_argzero = sizeof(struct nfsd3_symlinkargs),
926 .pc_ressize = sizeof(struct nfsd3_createres),
927 .pc_cachetype = RC_REPLBUFF,
928 .pc_xdrressize = ST+(1+FH+pAT)+WC,
929 .pc_name = "SYMLINK",
932 .pc_func = nfsd3_proc_mknod,
933 .pc_decode = nfs3svc_decode_mknodargs,
934 .pc_encode = nfs3svc_encode_createres,
935 .pc_release = nfs3svc_release_fhandle2,
936 .pc_argsize = sizeof(struct nfsd3_mknodargs),
937 .pc_argzero = sizeof(struct nfsd3_mknodargs),
938 .pc_ressize = sizeof(struct nfsd3_createres),
939 .pc_cachetype = RC_REPLBUFF,
940 .pc_xdrressize = ST+(1+FH+pAT)+WC,
943 [NFS3PROC_REMOVE] = {
944 .pc_func = nfsd3_proc_remove,
945 .pc_decode = nfs3svc_decode_diropargs,
946 .pc_encode = nfs3svc_encode_wccstatres,
947 .pc_release = nfs3svc_release_fhandle,
948 .pc_argsize = sizeof(struct nfsd3_diropargs),
949 .pc_argzero = sizeof(struct nfsd3_diropargs),
950 .pc_ressize = sizeof(struct nfsd3_wccstatres),
951 .pc_cachetype = RC_REPLBUFF,
952 .pc_xdrressize = ST+WC,
956 .pc_func = nfsd3_proc_rmdir,
957 .pc_decode = nfs3svc_decode_diropargs,
958 .pc_encode = nfs3svc_encode_wccstatres,
959 .pc_release = nfs3svc_release_fhandle,
960 .pc_argsize = sizeof(struct nfsd3_diropargs),
961 .pc_argzero = sizeof(struct nfsd3_diropargs),
962 .pc_ressize = sizeof(struct nfsd3_wccstatres),
963 .pc_cachetype = RC_REPLBUFF,
964 .pc_xdrressize = ST+WC,
967 [NFS3PROC_RENAME] = {
968 .pc_func = nfsd3_proc_rename,
969 .pc_decode = nfs3svc_decode_renameargs,
970 .pc_encode = nfs3svc_encode_renameres,
971 .pc_release = nfs3svc_release_fhandle2,
972 .pc_argsize = sizeof(struct nfsd3_renameargs),
973 .pc_argzero = sizeof(struct nfsd3_renameargs),
974 .pc_ressize = sizeof(struct nfsd3_renameres),
975 .pc_cachetype = RC_REPLBUFF,
976 .pc_xdrressize = ST+WC+WC,
980 .pc_func = nfsd3_proc_link,
981 .pc_decode = nfs3svc_decode_linkargs,
982 .pc_encode = nfs3svc_encode_linkres,
983 .pc_release = nfs3svc_release_fhandle2,
984 .pc_argsize = sizeof(struct nfsd3_linkargs),
985 .pc_argzero = sizeof(struct nfsd3_linkargs),
986 .pc_ressize = sizeof(struct nfsd3_linkres),
987 .pc_cachetype = RC_REPLBUFF,
988 .pc_xdrressize = ST+pAT+WC,
991 [NFS3PROC_READDIR] = {
992 .pc_func = nfsd3_proc_readdir,
993 .pc_decode = nfs3svc_decode_readdirargs,
994 .pc_encode = nfs3svc_encode_readdirres,
995 .pc_release = nfs3svc_release_fhandle,
996 .pc_argsize = sizeof(struct nfsd3_readdirargs),
997 .pc_argzero = sizeof(struct nfsd3_readdirargs),
998 .pc_ressize = sizeof(struct nfsd3_readdirres),
999 .pc_cachetype = RC_NOCACHE,
1000 .pc_name = "READDIR",
1002 [NFS3PROC_READDIRPLUS] = {
1003 .pc_func = nfsd3_proc_readdirplus,
1004 .pc_decode = nfs3svc_decode_readdirplusargs,
1005 .pc_encode = nfs3svc_encode_readdirres,
1006 .pc_release = nfs3svc_release_fhandle,
1007 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
1008 .pc_argzero = sizeof(struct nfsd3_readdirplusargs),
1009 .pc_ressize = sizeof(struct nfsd3_readdirres),
1010 .pc_cachetype = RC_NOCACHE,
1011 .pc_name = "READDIRPLUS",
1013 [NFS3PROC_FSSTAT] = {
1014 .pc_func = nfsd3_proc_fsstat,
1015 .pc_decode = nfs3svc_decode_fhandleargs,
1016 .pc_encode = nfs3svc_encode_fsstatres,
1017 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1018 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1019 .pc_ressize = sizeof(struct nfsd3_fsstatres),
1020 .pc_cachetype = RC_NOCACHE,
1021 .pc_xdrressize = ST+pAT+2*6+1,
1022 .pc_name = "FSSTAT",
1024 [NFS3PROC_FSINFO] = {
1025 .pc_func = nfsd3_proc_fsinfo,
1026 .pc_decode = nfs3svc_decode_fhandleargs,
1027 .pc_encode = nfs3svc_encode_fsinfores,
1028 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1029 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1030 .pc_ressize = sizeof(struct nfsd3_fsinfores),
1031 .pc_cachetype = RC_NOCACHE,
1032 .pc_xdrressize = ST+pAT+12,
1033 .pc_name = "FSINFO",
1035 [NFS3PROC_PATHCONF] = {
1036 .pc_func = nfsd3_proc_pathconf,
1037 .pc_decode = nfs3svc_decode_fhandleargs,
1038 .pc_encode = nfs3svc_encode_pathconfres,
1039 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1040 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1041 .pc_ressize = sizeof(struct nfsd3_pathconfres),
1042 .pc_cachetype = RC_NOCACHE,
1043 .pc_xdrressize = ST+pAT+6,
1044 .pc_name = "PATHCONF",
1046 [NFS3PROC_COMMIT] = {
1047 .pc_func = nfsd3_proc_commit,
1048 .pc_decode = nfs3svc_decode_commitargs,
1049 .pc_encode = nfs3svc_encode_commitres,
1050 .pc_release = nfs3svc_release_fhandle,
1051 .pc_argsize = sizeof(struct nfsd3_commitargs),
1052 .pc_argzero = sizeof(struct nfsd3_commitargs),
1053 .pc_ressize = sizeof(struct nfsd3_commitres),
1054 .pc_cachetype = RC_NOCACHE,
1055 .pc_xdrressize = ST+WC+2,
1056 .pc_name = "COMMIT",
1060 static DEFINE_PER_CPU_ALIGNED(unsigned long,
1061 nfsd_count3[ARRAY_SIZE(nfsd_procedures3)]);
1062 const struct svc_version nfsd_version3 = {
1064 .vs_nproc = ARRAY_SIZE(nfsd_procedures3),
1065 .vs_proc = nfsd_procedures3,
1066 .vs_dispatch = nfsd_dispatch,
1067 .vs_count = nfsd_count3,
1068 .vs_xdrsize = NFS3_SVC_XDRSIZE,