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,
75 dprintk("nfsd: SETATTR(3) %s\n",
76 SVCFH_fmt(&argp->fh));
78 fh_copy(&resp->fh, &argp->fh);
79 resp->status = nfsd_setattr(rqstp, &resp->fh, &attrs,
80 argp->check_guard, argp->guardtime);
85 * Look up a path name component
88 nfsd3_proc_lookup(struct svc_rqst *rqstp)
90 struct nfsd3_diropargs *argp = rqstp->rq_argp;
91 struct nfsd3_diropres *resp = rqstp->rq_resp;
93 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
98 fh_copy(&resp->dirfh, &argp->fh);
99 fh_init(&resp->fh, NFS3_FHSIZE);
101 resp->status = nfsd_lookup(rqstp, &resp->dirfh,
102 argp->name, argp->len,
111 nfsd3_proc_access(struct svc_rqst *rqstp)
113 struct nfsd3_accessargs *argp = rqstp->rq_argp;
114 struct nfsd3_accessres *resp = rqstp->rq_resp;
116 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
117 SVCFH_fmt(&argp->fh),
120 fh_copy(&resp->fh, &argp->fh);
121 resp->access = argp->access;
122 resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
130 nfsd3_proc_readlink(struct svc_rqst *rqstp)
132 struct nfsd_fhandle *argp = rqstp->rq_argp;
133 struct nfsd3_readlinkres *resp = rqstp->rq_resp;
135 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
137 /* Read the symlink. */
138 fh_copy(&resp->fh, &argp->fh);
139 resp->len = NFS3_MAXPATHLEN;
140 resp->pages = rqstp->rq_next_page++;
141 resp->status = nfsd_readlink(rqstp, &resp->fh,
142 page_address(*resp->pages), &resp->len);
147 * Read a portion of a file.
150 nfsd3_proc_read(struct svc_rqst *rqstp)
152 struct nfsd3_readargs *argp = rqstp->rq_argp;
153 struct nfsd3_readres *resp = rqstp->rq_resp;
155 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
156 SVCFH_fmt(&argp->fh),
157 (unsigned long) argp->count,
158 (unsigned long long) argp->offset);
160 argp->count = min_t(u32, argp->count, svc_max_payload(rqstp));
161 argp->count = min_t(u32, argp->count, rqstp->rq_res.buflen);
162 if (argp->offset > (u64)OFFSET_MAX)
163 argp->offset = (u64)OFFSET_MAX;
164 if (argp->offset + argp->count > (u64)OFFSET_MAX)
165 argp->count = (u64)OFFSET_MAX - argp->offset;
167 resp->pages = rqstp->rq_next_page;
169 /* Obtain buffer pointer for payload.
170 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
171 * + 1 (xdr opaque byte count) = 26
173 resp->count = argp->count;
174 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3) << 2) +
177 fh_copy(&resp->fh, &argp->fh);
178 resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
179 &resp->count, &resp->eof);
184 * Write data to a file
187 nfsd3_proc_write(struct svc_rqst *rqstp)
189 struct nfsd3_writeargs *argp = rqstp->rq_argp;
190 struct nfsd3_writeres *resp = rqstp->rq_resp;
191 unsigned long cnt = argp->len;
194 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
195 SVCFH_fmt(&argp->fh),
197 (unsigned long long) argp->offset,
198 argp->stable ? " stable" : "");
200 resp->status = nfserr_fbig;
201 if (argp->offset > (u64)OFFSET_MAX ||
202 argp->offset + argp->len > (u64)OFFSET_MAX)
205 fh_copy(&resp->fh, &argp->fh);
206 resp->committed = argp->stable;
207 nvecs = svc_fill_write_vector(rqstp, &argp->payload);
209 resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
210 rqstp->rq_vec, nvecs, &cnt,
211 resp->committed, resp->verf);
217 * Implement NFSv3's unchecked, guarded, and exclusive CREATE
218 * semantics for regular files. Except for the created file,
219 * this operation is stateless on the server.
221 * Upon return, caller must release @fhp and @resfhp.
224 nfsd3_create_file(struct svc_rqst *rqstp, struct svc_fh *fhp,
225 struct svc_fh *resfhp, struct nfsd3_createargs *argp)
227 struct iattr *iap = &argp->attrs;
228 struct dentry *parent, *child;
229 struct nfsd_attrs attrs = {
232 __u32 v_mtime, v_atime;
237 if (isdotent(argp->name, argp->len))
239 if (!(iap->ia_valid & ATTR_MODE))
242 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
243 if (status != nfs_ok)
246 parent = fhp->fh_dentry;
247 inode = d_inode(parent);
249 host_err = fh_want_write(fhp);
251 return nfserrno(host_err);
253 inode_lock_nested(inode, I_MUTEX_PARENT);
255 child = lookup_one_len(argp->name, parent, argp->len);
257 status = nfserrno(PTR_ERR(child));
261 if (d_really_is_negative(child)) {
262 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
263 if (status != nfs_ok)
267 status = fh_compose(resfhp, fhp->fh_export, child, fhp);
268 if (status != nfs_ok)
273 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
274 u32 *verifier = (u32 *)argp->verf;
277 * Solaris 7 gets confused (bugid 4218508) if these have
278 * the high bit set, as do xfs filesystems without the
279 * "bigtime" feature. So just clear the high bits.
281 v_mtime = verifier[0] & 0x7fffffff;
282 v_atime = verifier[1] & 0x7fffffff;
285 if (d_really_is_positive(child)) {
288 switch (argp->createmode) {
289 case NFS3_CREATE_UNCHECKED:
290 if (!d_is_reg(child))
292 iap->ia_valid &= ATTR_SIZE;
294 case NFS3_CREATE_GUARDED:
295 status = nfserr_exist;
297 case NFS3_CREATE_EXCLUSIVE:
298 if (inode_get_mtime_sec(d_inode(child)) == v_mtime &&
299 inode_get_atime_sec(d_inode(child)) == v_atime &&
300 d_inode(child)->i_size == 0) {
303 status = nfserr_exist;
308 if (!IS_POSIXACL(inode))
309 iap->ia_mode &= ~current_umask();
311 status = fh_fill_pre_attrs(fhp);
312 if (status != nfs_ok)
314 host_err = vfs_create(&nop_mnt_idmap, inode, child, iap->ia_mode, true);
316 status = nfserrno(host_err);
319 fh_fill_post_attrs(fhp);
321 /* A newly created file already has a file size of zero. */
322 if ((iap->ia_valid & ATTR_SIZE) && (iap->ia_size == 0))
323 iap->ia_valid &= ~ATTR_SIZE;
324 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
325 iap->ia_valid = ATTR_MTIME | ATTR_ATIME |
326 ATTR_MTIME_SET | ATTR_ATIME_SET;
327 iap->ia_mtime.tv_sec = v_mtime;
328 iap->ia_atime.tv_sec = v_atime;
329 iap->ia_mtime.tv_nsec = 0;
330 iap->ia_atime.tv_nsec = 0;
334 status = nfsd_create_setattr(rqstp, fhp, resfhp, &attrs);
338 if (child && !IS_ERR(child))
345 nfsd3_proc_create(struct svc_rqst *rqstp)
347 struct nfsd3_createargs *argp = rqstp->rq_argp;
348 struct nfsd3_diropres *resp = rqstp->rq_resp;
349 svc_fh *dirfhp, *newfhp;
351 dprintk("nfsd: CREATE(3) %s %.*s\n",
352 SVCFH_fmt(&argp->fh),
356 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
357 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
359 resp->status = nfsd3_create_file(rqstp, dirfhp, newfhp, argp);
364 * Make directory. This operation is not idempotent.
367 nfsd3_proc_mkdir(struct svc_rqst *rqstp)
369 struct nfsd3_createargs *argp = rqstp->rq_argp;
370 struct nfsd3_diropres *resp = rqstp->rq_resp;
371 struct nfsd_attrs attrs = {
372 .na_iattr = &argp->attrs,
375 dprintk("nfsd: MKDIR(3) %s %.*s\n",
376 SVCFH_fmt(&argp->fh),
380 argp->attrs.ia_valid &= ~ATTR_SIZE;
381 fh_copy(&resp->dirfh, &argp->fh);
382 fh_init(&resp->fh, NFS3_FHSIZE);
383 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
384 &attrs, S_IFDIR, 0, &resp->fh);
389 nfsd3_proc_symlink(struct svc_rqst *rqstp)
391 struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
392 struct nfsd3_diropres *resp = rqstp->rq_resp;
393 struct nfsd_attrs attrs = {
394 .na_iattr = &argp->attrs,
397 if (argp->tlen == 0) {
398 resp->status = nfserr_inval;
401 if (argp->tlen > NFS3_MAXPATHLEN) {
402 resp->status = nfserr_nametoolong;
406 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
407 page_address(rqstp->rq_arg.pages[0]),
409 if (IS_ERR(argp->tname)) {
410 resp->status = nfserrno(PTR_ERR(argp->tname));
414 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
415 SVCFH_fmt(&argp->ffh),
416 argp->flen, argp->fname,
417 argp->tlen, argp->tname);
419 fh_copy(&resp->dirfh, &argp->ffh);
420 fh_init(&resp->fh, NFS3_FHSIZE);
421 resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
422 argp->flen, argp->tname, &attrs, &resp->fh);
429 * Make socket/fifo/device.
432 nfsd3_proc_mknod(struct svc_rqst *rqstp)
434 struct nfsd3_mknodargs *argp = rqstp->rq_argp;
435 struct nfsd3_diropres *resp = rqstp->rq_resp;
436 struct nfsd_attrs attrs = {
437 .na_iattr = &argp->attrs,
442 dprintk("nfsd: MKNOD(3) %s %.*s\n",
443 SVCFH_fmt(&argp->fh),
447 fh_copy(&resp->dirfh, &argp->fh);
448 fh_init(&resp->fh, NFS3_FHSIZE);
450 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
451 rdev = MKDEV(argp->major, argp->minor);
452 if (MAJOR(rdev) != argp->major ||
453 MINOR(rdev) != argp->minor) {
454 resp->status = nfserr_inval;
457 } else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
458 resp->status = nfserr_badtype;
462 type = nfs3_ftypes[argp->ftype];
463 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
464 &attrs, type, rdev, &resp->fh);
470 * Remove file/fifo/socket etc.
473 nfsd3_proc_remove(struct svc_rqst *rqstp)
475 struct nfsd3_diropargs *argp = rqstp->rq_argp;
476 struct nfsd3_attrstat *resp = rqstp->rq_resp;
478 dprintk("nfsd: REMOVE(3) %s %.*s\n",
479 SVCFH_fmt(&argp->fh),
483 /* Unlink. -S_IFDIR means file must not be a directory */
484 fh_copy(&resp->fh, &argp->fh);
485 resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
486 argp->name, argp->len);
494 nfsd3_proc_rmdir(struct svc_rqst *rqstp)
496 struct nfsd3_diropargs *argp = rqstp->rq_argp;
497 struct nfsd3_attrstat *resp = rqstp->rq_resp;
499 dprintk("nfsd: RMDIR(3) %s %.*s\n",
500 SVCFH_fmt(&argp->fh),
504 fh_copy(&resp->fh, &argp->fh);
505 resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
506 argp->name, argp->len);
511 nfsd3_proc_rename(struct svc_rqst *rqstp)
513 struct nfsd3_renameargs *argp = rqstp->rq_argp;
514 struct nfsd3_renameres *resp = rqstp->rq_resp;
516 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
517 SVCFH_fmt(&argp->ffh),
520 dprintk("nfsd: -> %s %.*s\n",
521 SVCFH_fmt(&argp->tfh),
525 fh_copy(&resp->ffh, &argp->ffh);
526 fh_copy(&resp->tfh, &argp->tfh);
527 resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
528 &resp->tfh, argp->tname, argp->tlen);
533 nfsd3_proc_link(struct svc_rqst *rqstp)
535 struct nfsd3_linkargs *argp = rqstp->rq_argp;
536 struct nfsd3_linkres *resp = rqstp->rq_resp;
538 dprintk("nfsd: LINK(3) %s ->\n",
539 SVCFH_fmt(&argp->ffh));
540 dprintk("nfsd: -> %s %.*s\n",
541 SVCFH_fmt(&argp->tfh),
545 fh_copy(&resp->fh, &argp->ffh);
546 fh_copy(&resp->tfh, &argp->tfh);
547 resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
552 static void nfsd3_init_dirlist_pages(struct svc_rqst *rqstp,
553 struct nfsd3_readdirres *resp,
556 struct xdr_buf *buf = &resp->dirlist;
557 struct xdr_stream *xdr = &resp->xdr;
558 unsigned int sendbuf = min_t(unsigned int, rqstp->rq_res.buflen,
559 svc_max_payload(rqstp));
561 memset(buf, 0, sizeof(*buf));
563 /* Reserve room for the NULL ptr & eof flag (-2 words) */
564 buf->buflen = clamp(count, (u32)(XDR_UNIT * 2), sendbuf);
565 buf->buflen -= XDR_UNIT * 2;
566 buf->pages = rqstp->rq_next_page;
567 rqstp->rq_next_page += (buf->buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
569 xdr_init_encode_pages(xdr, buf, buf->pages, NULL);
573 * Read a portion of a directory.
576 nfsd3_proc_readdir(struct svc_rqst *rqstp)
578 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
579 struct nfsd3_readdirres *resp = rqstp->rq_resp;
582 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
583 SVCFH_fmt(&argp->fh),
584 argp->count, (u32) argp->cookie);
586 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
588 fh_copy(&resp->fh, &argp->fh);
589 resp->common.err = nfs_ok;
590 resp->cookie_offset = 0;
592 offset = argp->cookie;
593 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
594 &resp->common, nfs3svc_encode_entry3);
595 memcpy(resp->verf, argp->verf, 8);
596 nfs3svc_encode_cookie3(resp, offset);
598 /* Recycle only pages that were part of the reply */
599 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
605 * Read a portion of a directory, including file handles and attrs.
606 * For now, we choose to ignore the dircount parameter.
609 nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
611 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
612 struct nfsd3_readdirres *resp = rqstp->rq_resp;
615 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
616 SVCFH_fmt(&argp->fh),
617 argp->count, (u32) argp->cookie);
619 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
621 fh_copy(&resp->fh, &argp->fh);
622 resp->common.err = nfs_ok;
623 resp->cookie_offset = 0;
625 offset = argp->cookie;
627 resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
628 if (resp->status != nfs_ok)
631 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
632 resp->status = nfserr_notsupp;
636 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
637 &resp->common, nfs3svc_encode_entryplus3);
638 memcpy(resp->verf, argp->verf, 8);
639 nfs3svc_encode_cookie3(resp, offset);
641 /* Recycle only pages that were part of the reply */
642 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
649 * Get file system stats
652 nfsd3_proc_fsstat(struct svc_rqst *rqstp)
654 struct nfsd_fhandle *argp = rqstp->rq_argp;
655 struct nfsd3_fsstatres *resp = rqstp->rq_resp;
657 dprintk("nfsd: FSSTAT(3) %s\n",
658 SVCFH_fmt(&argp->fh));
660 resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
666 * Get file system info
669 nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
671 struct nfsd_fhandle *argp = rqstp->rq_argp;
672 struct nfsd3_fsinfores *resp = rqstp->rq_resp;
673 u32 max_blocksize = svc_max_payload(rqstp);
675 dprintk("nfsd: FSINFO(3) %s\n",
676 SVCFH_fmt(&argp->fh));
678 resp->f_rtmax = max_blocksize;
679 resp->f_rtpref = max_blocksize;
680 resp->f_rtmult = PAGE_SIZE;
681 resp->f_wtmax = max_blocksize;
682 resp->f_wtpref = max_blocksize;
683 resp->f_wtmult = PAGE_SIZE;
684 resp->f_dtpref = max_blocksize;
685 resp->f_maxfilesize = ~(u32) 0;
686 resp->f_properties = NFS3_FSF_DEFAULT;
688 resp->status = fh_verify(rqstp, &argp->fh, 0,
689 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
691 /* Check special features of the file system. May request
692 * different read/write sizes for file systems known to have
693 * problems with large blocks */
694 if (resp->status == nfs_ok) {
695 struct super_block *sb = argp->fh.fh_dentry->d_sb;
697 /* Note that we don't care for remote fs's here */
698 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
699 resp->f_properties = NFS3_FSF_BILLYBOY;
701 resp->f_maxfilesize = sb->s_maxbytes;
709 * Get pathconf info for the specified file
712 nfsd3_proc_pathconf(struct svc_rqst *rqstp)
714 struct nfsd_fhandle *argp = rqstp->rq_argp;
715 struct nfsd3_pathconfres *resp = rqstp->rq_resp;
717 dprintk("nfsd: PATHCONF(3) %s\n",
718 SVCFH_fmt(&argp->fh));
720 /* Set default pathconf */
721 resp->p_link_max = 255; /* at least */
722 resp->p_name_max = 255; /* at least */
723 resp->p_no_trunc = 0;
724 resp->p_chown_restricted = 1;
725 resp->p_case_insensitive = 0;
726 resp->p_case_preserving = 1;
728 resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
730 if (resp->status == nfs_ok) {
731 struct super_block *sb = argp->fh.fh_dentry->d_sb;
733 /* Note that we don't care for remote fs's here */
734 switch (sb->s_magic) {
735 case EXT2_SUPER_MAGIC:
736 resp->p_link_max = EXT2_LINK_MAX;
737 resp->p_name_max = EXT2_NAME_LEN;
739 case MSDOS_SUPER_MAGIC:
740 resp->p_case_insensitive = 1;
741 resp->p_case_preserving = 0;
751 * Commit a file (range) to stable storage.
754 nfsd3_proc_commit(struct svc_rqst *rqstp)
756 struct nfsd3_commitargs *argp = rqstp->rq_argp;
757 struct nfsd3_commitres *resp = rqstp->rq_resp;
758 struct nfsd_file *nf;
760 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
761 SVCFH_fmt(&argp->fh),
763 (unsigned long long) argp->offset);
765 fh_copy(&resp->fh, &argp->fh);
766 resp->status = nfsd_file_acquire_gc(rqstp, &resp->fh, NFSD_MAY_WRITE |
767 NFSD_MAY_NOT_BREAK_LEASE, &nf);
770 resp->status = nfsd_commit(rqstp, &resp->fh, nf, argp->offset,
771 argp->count, resp->verf);
779 * NFSv3 Server procedures.
780 * Only the results of non-idempotent operations are cached.
782 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
783 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
784 #define nfsd3_mkdirargs nfsd3_createargs
785 #define nfsd3_readdirplusargs nfsd3_readdirargs
786 #define nfsd3_fhandleargs nfsd_fhandle
787 #define nfsd3_attrstatres nfsd3_attrstat
788 #define nfsd3_wccstatres nfsd3_attrstat
789 #define nfsd3_createres nfsd3_diropres
791 #define ST 1 /* status*/
792 #define FH 17 /* filehandle with length */
793 #define AT 21 /* attributes */
794 #define pAT (1+AT) /* post attributes - conditional */
795 #define WC (7+pAT) /* WCC attributes */
797 static const struct svc_procedure nfsd_procedures3[22] = {
799 .pc_func = nfsd3_proc_null,
800 .pc_decode = nfssvc_decode_voidarg,
801 .pc_encode = nfssvc_encode_voidres,
802 .pc_argsize = sizeof(struct nfsd_voidargs),
803 .pc_argzero = sizeof(struct nfsd_voidargs),
804 .pc_ressize = sizeof(struct nfsd_voidres),
805 .pc_cachetype = RC_NOCACHE,
809 [NFS3PROC_GETATTR] = {
810 .pc_func = nfsd3_proc_getattr,
811 .pc_decode = nfs3svc_decode_fhandleargs,
812 .pc_encode = nfs3svc_encode_getattrres,
813 .pc_release = nfs3svc_release_fhandle,
814 .pc_argsize = sizeof(struct nfsd_fhandle),
815 .pc_argzero = sizeof(struct nfsd_fhandle),
816 .pc_ressize = sizeof(struct nfsd3_attrstatres),
817 .pc_cachetype = RC_NOCACHE,
818 .pc_xdrressize = ST+AT,
819 .pc_name = "GETATTR",
821 [NFS3PROC_SETATTR] = {
822 .pc_func = nfsd3_proc_setattr,
823 .pc_decode = nfs3svc_decode_sattrargs,
824 .pc_encode = nfs3svc_encode_wccstatres,
825 .pc_release = nfs3svc_release_fhandle,
826 .pc_argsize = sizeof(struct nfsd3_sattrargs),
827 .pc_argzero = sizeof(struct nfsd3_sattrargs),
828 .pc_ressize = sizeof(struct nfsd3_wccstatres),
829 .pc_cachetype = RC_REPLBUFF,
830 .pc_xdrressize = ST+WC,
831 .pc_name = "SETATTR",
833 [NFS3PROC_LOOKUP] = {
834 .pc_func = nfsd3_proc_lookup,
835 .pc_decode = nfs3svc_decode_diropargs,
836 .pc_encode = nfs3svc_encode_lookupres,
837 .pc_release = nfs3svc_release_fhandle2,
838 .pc_argsize = sizeof(struct nfsd3_diropargs),
839 .pc_argzero = sizeof(struct nfsd3_diropargs),
840 .pc_ressize = sizeof(struct nfsd3_diropres),
841 .pc_cachetype = RC_NOCACHE,
842 .pc_xdrressize = ST+FH+pAT+pAT,
845 [NFS3PROC_ACCESS] = {
846 .pc_func = nfsd3_proc_access,
847 .pc_decode = nfs3svc_decode_accessargs,
848 .pc_encode = nfs3svc_encode_accessres,
849 .pc_release = nfs3svc_release_fhandle,
850 .pc_argsize = sizeof(struct nfsd3_accessargs),
851 .pc_argzero = sizeof(struct nfsd3_accessargs),
852 .pc_ressize = sizeof(struct nfsd3_accessres),
853 .pc_cachetype = RC_NOCACHE,
854 .pc_xdrressize = ST+pAT+1,
857 [NFS3PROC_READLINK] = {
858 .pc_func = nfsd3_proc_readlink,
859 .pc_decode = nfs3svc_decode_fhandleargs,
860 .pc_encode = nfs3svc_encode_readlinkres,
861 .pc_release = nfs3svc_release_fhandle,
862 .pc_argsize = sizeof(struct nfsd_fhandle),
863 .pc_argzero = sizeof(struct nfsd_fhandle),
864 .pc_ressize = sizeof(struct nfsd3_readlinkres),
865 .pc_cachetype = RC_NOCACHE,
866 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
867 .pc_name = "READLINK",
870 .pc_func = nfsd3_proc_read,
871 .pc_decode = nfs3svc_decode_readargs,
872 .pc_encode = nfs3svc_encode_readres,
873 .pc_release = nfs3svc_release_fhandle,
874 .pc_argsize = sizeof(struct nfsd3_readargs),
875 .pc_argzero = sizeof(struct nfsd3_readargs),
876 .pc_ressize = sizeof(struct nfsd3_readres),
877 .pc_cachetype = RC_NOCACHE,
878 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
882 .pc_func = nfsd3_proc_write,
883 .pc_decode = nfs3svc_decode_writeargs,
884 .pc_encode = nfs3svc_encode_writeres,
885 .pc_release = nfs3svc_release_fhandle,
886 .pc_argsize = sizeof(struct nfsd3_writeargs),
887 .pc_argzero = sizeof(struct nfsd3_writeargs),
888 .pc_ressize = sizeof(struct nfsd3_writeres),
889 .pc_cachetype = RC_REPLBUFF,
890 .pc_xdrressize = ST+WC+4,
893 [NFS3PROC_CREATE] = {
894 .pc_func = nfsd3_proc_create,
895 .pc_decode = nfs3svc_decode_createargs,
896 .pc_encode = nfs3svc_encode_createres,
897 .pc_release = nfs3svc_release_fhandle2,
898 .pc_argsize = sizeof(struct nfsd3_createargs),
899 .pc_argzero = sizeof(struct nfsd3_createargs),
900 .pc_ressize = sizeof(struct nfsd3_createres),
901 .pc_cachetype = RC_REPLBUFF,
902 .pc_xdrressize = ST+(1+FH+pAT)+WC,
906 .pc_func = nfsd3_proc_mkdir,
907 .pc_decode = nfs3svc_decode_mkdirargs,
908 .pc_encode = nfs3svc_encode_createres,
909 .pc_release = nfs3svc_release_fhandle2,
910 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
911 .pc_argzero = sizeof(struct nfsd3_mkdirargs),
912 .pc_ressize = sizeof(struct nfsd3_createres),
913 .pc_cachetype = RC_REPLBUFF,
914 .pc_xdrressize = ST+(1+FH+pAT)+WC,
917 [NFS3PROC_SYMLINK] = {
918 .pc_func = nfsd3_proc_symlink,
919 .pc_decode = nfs3svc_decode_symlinkargs,
920 .pc_encode = nfs3svc_encode_createres,
921 .pc_release = nfs3svc_release_fhandle2,
922 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
923 .pc_argzero = sizeof(struct nfsd3_symlinkargs),
924 .pc_ressize = sizeof(struct nfsd3_createres),
925 .pc_cachetype = RC_REPLBUFF,
926 .pc_xdrressize = ST+(1+FH+pAT)+WC,
927 .pc_name = "SYMLINK",
930 .pc_func = nfsd3_proc_mknod,
931 .pc_decode = nfs3svc_decode_mknodargs,
932 .pc_encode = nfs3svc_encode_createres,
933 .pc_release = nfs3svc_release_fhandle2,
934 .pc_argsize = sizeof(struct nfsd3_mknodargs),
935 .pc_argzero = sizeof(struct nfsd3_mknodargs),
936 .pc_ressize = sizeof(struct nfsd3_createres),
937 .pc_cachetype = RC_REPLBUFF,
938 .pc_xdrressize = ST+(1+FH+pAT)+WC,
941 [NFS3PROC_REMOVE] = {
942 .pc_func = nfsd3_proc_remove,
943 .pc_decode = nfs3svc_decode_diropargs,
944 .pc_encode = nfs3svc_encode_wccstatres,
945 .pc_release = nfs3svc_release_fhandle,
946 .pc_argsize = sizeof(struct nfsd3_diropargs),
947 .pc_argzero = sizeof(struct nfsd3_diropargs),
948 .pc_ressize = sizeof(struct nfsd3_wccstatres),
949 .pc_cachetype = RC_REPLBUFF,
950 .pc_xdrressize = ST+WC,
954 .pc_func = nfsd3_proc_rmdir,
955 .pc_decode = nfs3svc_decode_diropargs,
956 .pc_encode = nfs3svc_encode_wccstatres,
957 .pc_release = nfs3svc_release_fhandle,
958 .pc_argsize = sizeof(struct nfsd3_diropargs),
959 .pc_argzero = sizeof(struct nfsd3_diropargs),
960 .pc_ressize = sizeof(struct nfsd3_wccstatres),
961 .pc_cachetype = RC_REPLBUFF,
962 .pc_xdrressize = ST+WC,
965 [NFS3PROC_RENAME] = {
966 .pc_func = nfsd3_proc_rename,
967 .pc_decode = nfs3svc_decode_renameargs,
968 .pc_encode = nfs3svc_encode_renameres,
969 .pc_release = nfs3svc_release_fhandle2,
970 .pc_argsize = sizeof(struct nfsd3_renameargs),
971 .pc_argzero = sizeof(struct nfsd3_renameargs),
972 .pc_ressize = sizeof(struct nfsd3_renameres),
973 .pc_cachetype = RC_REPLBUFF,
974 .pc_xdrressize = ST+WC+WC,
978 .pc_func = nfsd3_proc_link,
979 .pc_decode = nfs3svc_decode_linkargs,
980 .pc_encode = nfs3svc_encode_linkres,
981 .pc_release = nfs3svc_release_fhandle2,
982 .pc_argsize = sizeof(struct nfsd3_linkargs),
983 .pc_argzero = sizeof(struct nfsd3_linkargs),
984 .pc_ressize = sizeof(struct nfsd3_linkres),
985 .pc_cachetype = RC_REPLBUFF,
986 .pc_xdrressize = ST+pAT+WC,
989 [NFS3PROC_READDIR] = {
990 .pc_func = nfsd3_proc_readdir,
991 .pc_decode = nfs3svc_decode_readdirargs,
992 .pc_encode = nfs3svc_encode_readdirres,
993 .pc_release = nfs3svc_release_fhandle,
994 .pc_argsize = sizeof(struct nfsd3_readdirargs),
995 .pc_argzero = sizeof(struct nfsd3_readdirargs),
996 .pc_ressize = sizeof(struct nfsd3_readdirres),
997 .pc_cachetype = RC_NOCACHE,
998 .pc_name = "READDIR",
1000 [NFS3PROC_READDIRPLUS] = {
1001 .pc_func = nfsd3_proc_readdirplus,
1002 .pc_decode = nfs3svc_decode_readdirplusargs,
1003 .pc_encode = nfs3svc_encode_readdirres,
1004 .pc_release = nfs3svc_release_fhandle,
1005 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
1006 .pc_argzero = sizeof(struct nfsd3_readdirplusargs),
1007 .pc_ressize = sizeof(struct nfsd3_readdirres),
1008 .pc_cachetype = RC_NOCACHE,
1009 .pc_name = "READDIRPLUS",
1011 [NFS3PROC_FSSTAT] = {
1012 .pc_func = nfsd3_proc_fsstat,
1013 .pc_decode = nfs3svc_decode_fhandleargs,
1014 .pc_encode = nfs3svc_encode_fsstatres,
1015 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1016 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1017 .pc_ressize = sizeof(struct nfsd3_fsstatres),
1018 .pc_cachetype = RC_NOCACHE,
1019 .pc_xdrressize = ST+pAT+2*6+1,
1020 .pc_name = "FSSTAT",
1022 [NFS3PROC_FSINFO] = {
1023 .pc_func = nfsd3_proc_fsinfo,
1024 .pc_decode = nfs3svc_decode_fhandleargs,
1025 .pc_encode = nfs3svc_encode_fsinfores,
1026 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1027 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1028 .pc_ressize = sizeof(struct nfsd3_fsinfores),
1029 .pc_cachetype = RC_NOCACHE,
1030 .pc_xdrressize = ST+pAT+12,
1031 .pc_name = "FSINFO",
1033 [NFS3PROC_PATHCONF] = {
1034 .pc_func = nfsd3_proc_pathconf,
1035 .pc_decode = nfs3svc_decode_fhandleargs,
1036 .pc_encode = nfs3svc_encode_pathconfres,
1037 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1038 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1039 .pc_ressize = sizeof(struct nfsd3_pathconfres),
1040 .pc_cachetype = RC_NOCACHE,
1041 .pc_xdrressize = ST+pAT+6,
1042 .pc_name = "PATHCONF",
1044 [NFS3PROC_COMMIT] = {
1045 .pc_func = nfsd3_proc_commit,
1046 .pc_decode = nfs3svc_decode_commitargs,
1047 .pc_encode = nfs3svc_encode_commitres,
1048 .pc_release = nfs3svc_release_fhandle,
1049 .pc_argsize = sizeof(struct nfsd3_commitargs),
1050 .pc_argzero = sizeof(struct nfsd3_commitargs),
1051 .pc_ressize = sizeof(struct nfsd3_commitres),
1052 .pc_cachetype = RC_NOCACHE,
1053 .pc_xdrressize = ST+WC+2,
1054 .pc_name = "COMMIT",
1058 static DEFINE_PER_CPU_ALIGNED(unsigned long,
1059 nfsd_count3[ARRAY_SIZE(nfsd_procedures3)]);
1060 const struct svc_version nfsd_version3 = {
1062 .vs_nproc = ARRAY_SIZE(nfsd_procedures3),
1063 .vs_proc = nfsd_procedures3,
1064 .vs_dispatch = nfsd_dispatch,
1065 .vs_count = nfsd_count3,
1066 .vs_xdrsize = NFS3_SVC_XDRSIZE,