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;
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;
171 resp->pages = rqstp->rq_next_page;
173 struct page *page = *(rqstp->rq_next_page++);
175 rqstp->rq_vec[v].iov_base = page_address(page);
176 rqstp->rq_vec[v].iov_len = min_t(unsigned int, len, PAGE_SIZE);
177 len -= rqstp->rq_vec[v].iov_len;
181 /* Obtain buffer pointer for payload.
182 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
183 * + 1 (xdr opaque byte count) = 26
185 resp->count = argp->count;
186 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
188 fh_copy(&resp->fh, &argp->fh);
189 resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
190 rqstp->rq_vec, v, &resp->count, &resp->eof);
195 * Write data to a file
198 nfsd3_proc_write(struct svc_rqst *rqstp)
200 struct nfsd3_writeargs *argp = rqstp->rq_argp;
201 struct nfsd3_writeres *resp = rqstp->rq_resp;
202 unsigned long cnt = argp->len;
205 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
206 SVCFH_fmt(&argp->fh),
208 (unsigned long long) argp->offset,
209 argp->stable? " stable" : "");
211 resp->status = nfserr_fbig;
212 if (argp->offset > (u64)OFFSET_MAX ||
213 argp->offset + argp->len > (u64)OFFSET_MAX)
216 fh_copy(&resp->fh, &argp->fh);
217 resp->committed = argp->stable;
218 nvecs = svc_fill_write_vector(rqstp, &argp->payload);
220 resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
221 rqstp->rq_vec, nvecs, &cnt,
222 resp->committed, resp->verf);
228 * Implement NFSv3's unchecked, guarded, and exclusive CREATE
229 * semantics for regular files. Except for the created file,
230 * this operation is stateless on the server.
232 * Upon return, caller must release @fhp and @resfhp.
235 nfsd3_create_file(struct svc_rqst *rqstp, struct svc_fh *fhp,
236 struct svc_fh *resfhp, struct nfsd3_createargs *argp)
238 struct iattr *iap = &argp->attrs;
239 struct dentry *parent, *child;
240 struct nfsd_attrs attrs = {
243 __u32 v_mtime, v_atime;
248 if (isdotent(argp->name, argp->len))
250 if (!(iap->ia_valid & ATTR_MODE))
253 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
254 if (status != nfs_ok)
257 parent = fhp->fh_dentry;
258 inode = d_inode(parent);
260 host_err = fh_want_write(fhp);
262 return nfserrno(host_err);
264 inode_lock_nested(inode, I_MUTEX_PARENT);
266 child = lookup_one_len(argp->name, parent, argp->len);
268 status = nfserrno(PTR_ERR(child));
272 if (d_really_is_negative(child)) {
273 status = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
274 if (status != nfs_ok)
278 status = fh_compose(resfhp, fhp->fh_export, child, fhp);
279 if (status != nfs_ok)
284 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
285 u32 *verifier = (u32 *)argp->verf;
288 * Solaris 7 gets confused (bugid 4218508) if these have
289 * the high bit set, as do xfs filesystems without the
290 * "bigtime" feature. So just clear the high bits.
292 v_mtime = verifier[0] & 0x7fffffff;
293 v_atime = verifier[1] & 0x7fffffff;
296 if (d_really_is_positive(child)) {
299 switch (argp->createmode) {
300 case NFS3_CREATE_UNCHECKED:
301 if (!d_is_reg(child))
303 iap->ia_valid &= ATTR_SIZE;
305 case NFS3_CREATE_GUARDED:
306 status = nfserr_exist;
308 case NFS3_CREATE_EXCLUSIVE:
309 if (d_inode(child)->i_mtime.tv_sec == v_mtime &&
310 d_inode(child)->i_atime.tv_sec == v_atime &&
311 d_inode(child)->i_size == 0) {
314 status = nfserr_exist;
319 if (!IS_POSIXACL(inode))
320 iap->ia_mode &= ~current_umask();
322 fh_fill_pre_attrs(fhp);
323 host_err = vfs_create(&nop_mnt_idmap, inode, child, iap->ia_mode, true);
325 status = nfserrno(host_err);
328 fh_fill_post_attrs(fhp);
330 /* A newly created file already has a file size of zero. */
331 if ((iap->ia_valid & ATTR_SIZE) && (iap->ia_size == 0))
332 iap->ia_valid &= ~ATTR_SIZE;
333 if (argp->createmode == NFS3_CREATE_EXCLUSIVE) {
334 iap->ia_valid = ATTR_MTIME | ATTR_ATIME |
335 ATTR_MTIME_SET | ATTR_ATIME_SET;
336 iap->ia_mtime.tv_sec = v_mtime;
337 iap->ia_atime.tv_sec = v_atime;
338 iap->ia_mtime.tv_nsec = 0;
339 iap->ia_atime.tv_nsec = 0;
343 status = nfsd_create_setattr(rqstp, fhp, resfhp, &attrs);
347 if (child && !IS_ERR(child))
354 nfsd3_proc_create(struct svc_rqst *rqstp)
356 struct nfsd3_createargs *argp = rqstp->rq_argp;
357 struct nfsd3_diropres *resp = rqstp->rq_resp;
358 svc_fh *dirfhp, *newfhp;
360 dprintk("nfsd: CREATE(3) %s %.*s\n",
361 SVCFH_fmt(&argp->fh),
365 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
366 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
368 resp->status = nfsd3_create_file(rqstp, dirfhp, newfhp, argp);
373 * Make directory. This operation is not idempotent.
376 nfsd3_proc_mkdir(struct svc_rqst *rqstp)
378 struct nfsd3_createargs *argp = rqstp->rq_argp;
379 struct nfsd3_diropres *resp = rqstp->rq_resp;
380 struct nfsd_attrs attrs = {
381 .na_iattr = &argp->attrs,
384 dprintk("nfsd: MKDIR(3) %s %.*s\n",
385 SVCFH_fmt(&argp->fh),
389 argp->attrs.ia_valid &= ~ATTR_SIZE;
390 fh_copy(&resp->dirfh, &argp->fh);
391 fh_init(&resp->fh, NFS3_FHSIZE);
392 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
393 &attrs, S_IFDIR, 0, &resp->fh);
398 nfsd3_proc_symlink(struct svc_rqst *rqstp)
400 struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
401 struct nfsd3_diropres *resp = rqstp->rq_resp;
402 struct nfsd_attrs attrs = {
403 .na_iattr = &argp->attrs,
406 if (argp->tlen == 0) {
407 resp->status = nfserr_inval;
410 if (argp->tlen > NFS3_MAXPATHLEN) {
411 resp->status = nfserr_nametoolong;
415 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
416 page_address(rqstp->rq_arg.pages[0]),
418 if (IS_ERR(argp->tname)) {
419 resp->status = nfserrno(PTR_ERR(argp->tname));
423 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
424 SVCFH_fmt(&argp->ffh),
425 argp->flen, argp->fname,
426 argp->tlen, argp->tname);
428 fh_copy(&resp->dirfh, &argp->ffh);
429 fh_init(&resp->fh, NFS3_FHSIZE);
430 resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
431 argp->flen, argp->tname, &attrs, &resp->fh);
438 * Make socket/fifo/device.
441 nfsd3_proc_mknod(struct svc_rqst *rqstp)
443 struct nfsd3_mknodargs *argp = rqstp->rq_argp;
444 struct nfsd3_diropres *resp = rqstp->rq_resp;
445 struct nfsd_attrs attrs = {
446 .na_iattr = &argp->attrs,
451 dprintk("nfsd: MKNOD(3) %s %.*s\n",
452 SVCFH_fmt(&argp->fh),
456 fh_copy(&resp->dirfh, &argp->fh);
457 fh_init(&resp->fh, NFS3_FHSIZE);
459 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
460 rdev = MKDEV(argp->major, argp->minor);
461 if (MAJOR(rdev) != argp->major ||
462 MINOR(rdev) != argp->minor) {
463 resp->status = nfserr_inval;
466 } else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
467 resp->status = nfserr_badtype;
471 type = nfs3_ftypes[argp->ftype];
472 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
473 &attrs, type, rdev, &resp->fh);
479 * Remove file/fifo/socket etc.
482 nfsd3_proc_remove(struct svc_rqst *rqstp)
484 struct nfsd3_diropargs *argp = rqstp->rq_argp;
485 struct nfsd3_attrstat *resp = rqstp->rq_resp;
487 dprintk("nfsd: REMOVE(3) %s %.*s\n",
488 SVCFH_fmt(&argp->fh),
492 /* Unlink. -S_IFDIR means file must not be a directory */
493 fh_copy(&resp->fh, &argp->fh);
494 resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
495 argp->name, argp->len);
503 nfsd3_proc_rmdir(struct svc_rqst *rqstp)
505 struct nfsd3_diropargs *argp = rqstp->rq_argp;
506 struct nfsd3_attrstat *resp = rqstp->rq_resp;
508 dprintk("nfsd: RMDIR(3) %s %.*s\n",
509 SVCFH_fmt(&argp->fh),
513 fh_copy(&resp->fh, &argp->fh);
514 resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
515 argp->name, argp->len);
520 nfsd3_proc_rename(struct svc_rqst *rqstp)
522 struct nfsd3_renameargs *argp = rqstp->rq_argp;
523 struct nfsd3_renameres *resp = rqstp->rq_resp;
525 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
526 SVCFH_fmt(&argp->ffh),
529 dprintk("nfsd: -> %s %.*s\n",
530 SVCFH_fmt(&argp->tfh),
534 fh_copy(&resp->ffh, &argp->ffh);
535 fh_copy(&resp->tfh, &argp->tfh);
536 resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
537 &resp->tfh, argp->tname, argp->tlen);
542 nfsd3_proc_link(struct svc_rqst *rqstp)
544 struct nfsd3_linkargs *argp = rqstp->rq_argp;
545 struct nfsd3_linkres *resp = rqstp->rq_resp;
547 dprintk("nfsd: LINK(3) %s ->\n",
548 SVCFH_fmt(&argp->ffh));
549 dprintk("nfsd: -> %s %.*s\n",
550 SVCFH_fmt(&argp->tfh),
554 fh_copy(&resp->fh, &argp->ffh);
555 fh_copy(&resp->tfh, &argp->tfh);
556 resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
561 static void nfsd3_init_dirlist_pages(struct svc_rqst *rqstp,
562 struct nfsd3_readdirres *resp,
565 struct xdr_buf *buf = &resp->dirlist;
566 struct xdr_stream *xdr = &resp->xdr;
567 unsigned int sendbuf = min_t(unsigned int, rqstp->rq_res.buflen,
568 svc_max_payload(rqstp));
570 memset(buf, 0, sizeof(*buf));
572 /* Reserve room for the NULL ptr & eof flag (-2 words) */
573 buf->buflen = clamp(count, (u32)(XDR_UNIT * 2), sendbuf);
574 buf->buflen -= XDR_UNIT * 2;
575 buf->pages = rqstp->rq_next_page;
576 rqstp->rq_next_page += (buf->buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
578 xdr_init_encode_pages(xdr, buf, buf->pages, NULL);
582 * Read a portion of a directory.
585 nfsd3_proc_readdir(struct svc_rqst *rqstp)
587 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
588 struct nfsd3_readdirres *resp = rqstp->rq_resp;
591 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
592 SVCFH_fmt(&argp->fh),
593 argp->count, (u32) argp->cookie);
595 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
597 fh_copy(&resp->fh, &argp->fh);
598 resp->common.err = nfs_ok;
599 resp->cookie_offset = 0;
601 offset = argp->cookie;
602 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
603 &resp->common, nfs3svc_encode_entry3);
604 memcpy(resp->verf, argp->verf, 8);
605 nfs3svc_encode_cookie3(resp, offset);
607 /* Recycle only pages that were part of the reply */
608 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
614 * Read a portion of a directory, including file handles and attrs.
615 * For now, we choose to ignore the dircount parameter.
618 nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
620 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
621 struct nfsd3_readdirres *resp = rqstp->rq_resp;
624 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
625 SVCFH_fmt(&argp->fh),
626 argp->count, (u32) argp->cookie);
628 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
630 fh_copy(&resp->fh, &argp->fh);
631 resp->common.err = nfs_ok;
632 resp->cookie_offset = 0;
634 offset = argp->cookie;
636 resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
637 if (resp->status != nfs_ok)
640 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
641 resp->status = nfserr_notsupp;
645 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
646 &resp->common, nfs3svc_encode_entryplus3);
647 memcpy(resp->verf, argp->verf, 8);
648 nfs3svc_encode_cookie3(resp, offset);
650 /* Recycle only pages that were part of the reply */
651 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
658 * Get file system stats
661 nfsd3_proc_fsstat(struct svc_rqst *rqstp)
663 struct nfsd_fhandle *argp = rqstp->rq_argp;
664 struct nfsd3_fsstatres *resp = rqstp->rq_resp;
666 dprintk("nfsd: FSSTAT(3) %s\n",
667 SVCFH_fmt(&argp->fh));
669 resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
675 * Get file system info
678 nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
680 struct nfsd_fhandle *argp = rqstp->rq_argp;
681 struct nfsd3_fsinfores *resp = rqstp->rq_resp;
682 u32 max_blocksize = svc_max_payload(rqstp);
684 dprintk("nfsd: FSINFO(3) %s\n",
685 SVCFH_fmt(&argp->fh));
687 resp->f_rtmax = max_blocksize;
688 resp->f_rtpref = max_blocksize;
689 resp->f_rtmult = PAGE_SIZE;
690 resp->f_wtmax = max_blocksize;
691 resp->f_wtpref = max_blocksize;
692 resp->f_wtmult = PAGE_SIZE;
693 resp->f_dtpref = max_blocksize;
694 resp->f_maxfilesize = ~(u32) 0;
695 resp->f_properties = NFS3_FSF_DEFAULT;
697 resp->status = fh_verify(rqstp, &argp->fh, 0,
698 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
700 /* Check special features of the file system. May request
701 * different read/write sizes for file systems known to have
702 * problems with large blocks */
703 if (resp->status == nfs_ok) {
704 struct super_block *sb = argp->fh.fh_dentry->d_sb;
706 /* Note that we don't care for remote fs's here */
707 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
708 resp->f_properties = NFS3_FSF_BILLYBOY;
710 resp->f_maxfilesize = sb->s_maxbytes;
718 * Get pathconf info for the specified file
721 nfsd3_proc_pathconf(struct svc_rqst *rqstp)
723 struct nfsd_fhandle *argp = rqstp->rq_argp;
724 struct nfsd3_pathconfres *resp = rqstp->rq_resp;
726 dprintk("nfsd: PATHCONF(3) %s\n",
727 SVCFH_fmt(&argp->fh));
729 /* Set default pathconf */
730 resp->p_link_max = 255; /* at least */
731 resp->p_name_max = 255; /* at least */
732 resp->p_no_trunc = 0;
733 resp->p_chown_restricted = 1;
734 resp->p_case_insensitive = 0;
735 resp->p_case_preserving = 1;
737 resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
739 if (resp->status == nfs_ok) {
740 struct super_block *sb = argp->fh.fh_dentry->d_sb;
742 /* Note that we don't care for remote fs's here */
743 switch (sb->s_magic) {
744 case EXT2_SUPER_MAGIC:
745 resp->p_link_max = EXT2_LINK_MAX;
746 resp->p_name_max = EXT2_NAME_LEN;
748 case MSDOS_SUPER_MAGIC:
749 resp->p_case_insensitive = 1;
750 resp->p_case_preserving = 0;
760 * Commit a file (range) to stable storage.
763 nfsd3_proc_commit(struct svc_rqst *rqstp)
765 struct nfsd3_commitargs *argp = rqstp->rq_argp;
766 struct nfsd3_commitres *resp = rqstp->rq_resp;
767 struct nfsd_file *nf;
769 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
770 SVCFH_fmt(&argp->fh),
772 (unsigned long long) argp->offset);
774 fh_copy(&resp->fh, &argp->fh);
775 resp->status = nfsd_file_acquire_gc(rqstp, &resp->fh, NFSD_MAY_WRITE |
776 NFSD_MAY_NOT_BREAK_LEASE, &nf);
779 resp->status = nfsd_commit(rqstp, &resp->fh, nf, argp->offset,
780 argp->count, resp->verf);
788 * NFSv3 Server procedures.
789 * Only the results of non-idempotent operations are cached.
791 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
792 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
793 #define nfsd3_mkdirargs nfsd3_createargs
794 #define nfsd3_readdirplusargs nfsd3_readdirargs
795 #define nfsd3_fhandleargs nfsd_fhandle
796 #define nfsd3_attrstatres nfsd3_attrstat
797 #define nfsd3_wccstatres nfsd3_attrstat
798 #define nfsd3_createres nfsd3_diropres
800 #define ST 1 /* status*/
801 #define FH 17 /* filehandle with length */
802 #define AT 21 /* attributes */
803 #define pAT (1+AT) /* post attributes - conditional */
804 #define WC (7+pAT) /* WCC attributes */
806 static const struct svc_procedure nfsd_procedures3[22] = {
808 .pc_func = nfsd3_proc_null,
809 .pc_decode = nfssvc_decode_voidarg,
810 .pc_encode = nfssvc_encode_voidres,
811 .pc_argsize = sizeof(struct nfsd_voidargs),
812 .pc_argzero = sizeof(struct nfsd_voidargs),
813 .pc_ressize = sizeof(struct nfsd_voidres),
814 .pc_cachetype = RC_NOCACHE,
818 [NFS3PROC_GETATTR] = {
819 .pc_func = nfsd3_proc_getattr,
820 .pc_decode = nfs3svc_decode_fhandleargs,
821 .pc_encode = nfs3svc_encode_getattrres,
822 .pc_release = nfs3svc_release_fhandle,
823 .pc_argsize = sizeof(struct nfsd_fhandle),
824 .pc_argzero = sizeof(struct nfsd_fhandle),
825 .pc_ressize = sizeof(struct nfsd3_attrstatres),
826 .pc_cachetype = RC_NOCACHE,
827 .pc_xdrressize = ST+AT,
828 .pc_name = "GETATTR",
830 [NFS3PROC_SETATTR] = {
831 .pc_func = nfsd3_proc_setattr,
832 .pc_decode = nfs3svc_decode_sattrargs,
833 .pc_encode = nfs3svc_encode_wccstatres,
834 .pc_release = nfs3svc_release_fhandle,
835 .pc_argsize = sizeof(struct nfsd3_sattrargs),
836 .pc_argzero = sizeof(struct nfsd3_sattrargs),
837 .pc_ressize = sizeof(struct nfsd3_wccstatres),
838 .pc_cachetype = RC_REPLBUFF,
839 .pc_xdrressize = ST+WC,
840 .pc_name = "SETATTR",
842 [NFS3PROC_LOOKUP] = {
843 .pc_func = nfsd3_proc_lookup,
844 .pc_decode = nfs3svc_decode_diropargs,
845 .pc_encode = nfs3svc_encode_lookupres,
846 .pc_release = nfs3svc_release_fhandle2,
847 .pc_argsize = sizeof(struct nfsd3_diropargs),
848 .pc_argzero = sizeof(struct nfsd3_diropargs),
849 .pc_ressize = sizeof(struct nfsd3_diropres),
850 .pc_cachetype = RC_NOCACHE,
851 .pc_xdrressize = ST+FH+pAT+pAT,
854 [NFS3PROC_ACCESS] = {
855 .pc_func = nfsd3_proc_access,
856 .pc_decode = nfs3svc_decode_accessargs,
857 .pc_encode = nfs3svc_encode_accessres,
858 .pc_release = nfs3svc_release_fhandle,
859 .pc_argsize = sizeof(struct nfsd3_accessargs),
860 .pc_argzero = sizeof(struct nfsd3_accessargs),
861 .pc_ressize = sizeof(struct nfsd3_accessres),
862 .pc_cachetype = RC_NOCACHE,
863 .pc_xdrressize = ST+pAT+1,
866 [NFS3PROC_READLINK] = {
867 .pc_func = nfsd3_proc_readlink,
868 .pc_decode = nfs3svc_decode_fhandleargs,
869 .pc_encode = nfs3svc_encode_readlinkres,
870 .pc_release = nfs3svc_release_fhandle,
871 .pc_argsize = sizeof(struct nfsd_fhandle),
872 .pc_argzero = sizeof(struct nfsd_fhandle),
873 .pc_ressize = sizeof(struct nfsd3_readlinkres),
874 .pc_cachetype = RC_NOCACHE,
875 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
876 .pc_name = "READLINK",
879 .pc_func = nfsd3_proc_read,
880 .pc_decode = nfs3svc_decode_readargs,
881 .pc_encode = nfs3svc_encode_readres,
882 .pc_release = nfs3svc_release_fhandle,
883 .pc_argsize = sizeof(struct nfsd3_readargs),
884 .pc_argzero = sizeof(struct nfsd3_readargs),
885 .pc_ressize = sizeof(struct nfsd3_readres),
886 .pc_cachetype = RC_NOCACHE,
887 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
891 .pc_func = nfsd3_proc_write,
892 .pc_decode = nfs3svc_decode_writeargs,
893 .pc_encode = nfs3svc_encode_writeres,
894 .pc_release = nfs3svc_release_fhandle,
895 .pc_argsize = sizeof(struct nfsd3_writeargs),
896 .pc_argzero = sizeof(struct nfsd3_writeargs),
897 .pc_ressize = sizeof(struct nfsd3_writeres),
898 .pc_cachetype = RC_REPLBUFF,
899 .pc_xdrressize = ST+WC+4,
902 [NFS3PROC_CREATE] = {
903 .pc_func = nfsd3_proc_create,
904 .pc_decode = nfs3svc_decode_createargs,
905 .pc_encode = nfs3svc_encode_createres,
906 .pc_release = nfs3svc_release_fhandle2,
907 .pc_argsize = sizeof(struct nfsd3_createargs),
908 .pc_argzero = sizeof(struct nfsd3_createargs),
909 .pc_ressize = sizeof(struct nfsd3_createres),
910 .pc_cachetype = RC_REPLBUFF,
911 .pc_xdrressize = ST+(1+FH+pAT)+WC,
915 .pc_func = nfsd3_proc_mkdir,
916 .pc_decode = nfs3svc_decode_mkdirargs,
917 .pc_encode = nfs3svc_encode_createres,
918 .pc_release = nfs3svc_release_fhandle2,
919 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
920 .pc_argzero = sizeof(struct nfsd3_mkdirargs),
921 .pc_ressize = sizeof(struct nfsd3_createres),
922 .pc_cachetype = RC_REPLBUFF,
923 .pc_xdrressize = ST+(1+FH+pAT)+WC,
926 [NFS3PROC_SYMLINK] = {
927 .pc_func = nfsd3_proc_symlink,
928 .pc_decode = nfs3svc_decode_symlinkargs,
929 .pc_encode = nfs3svc_encode_createres,
930 .pc_release = nfs3svc_release_fhandle2,
931 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
932 .pc_argzero = sizeof(struct nfsd3_symlinkargs),
933 .pc_ressize = sizeof(struct nfsd3_createres),
934 .pc_cachetype = RC_REPLBUFF,
935 .pc_xdrressize = ST+(1+FH+pAT)+WC,
936 .pc_name = "SYMLINK",
939 .pc_func = nfsd3_proc_mknod,
940 .pc_decode = nfs3svc_decode_mknodargs,
941 .pc_encode = nfs3svc_encode_createres,
942 .pc_release = nfs3svc_release_fhandle2,
943 .pc_argsize = sizeof(struct nfsd3_mknodargs),
944 .pc_argzero = sizeof(struct nfsd3_mknodargs),
945 .pc_ressize = sizeof(struct nfsd3_createres),
946 .pc_cachetype = RC_REPLBUFF,
947 .pc_xdrressize = ST+(1+FH+pAT)+WC,
950 [NFS3PROC_REMOVE] = {
951 .pc_func = nfsd3_proc_remove,
952 .pc_decode = nfs3svc_decode_diropargs,
953 .pc_encode = nfs3svc_encode_wccstatres,
954 .pc_release = nfs3svc_release_fhandle,
955 .pc_argsize = sizeof(struct nfsd3_diropargs),
956 .pc_argzero = sizeof(struct nfsd3_diropargs),
957 .pc_ressize = sizeof(struct nfsd3_wccstatres),
958 .pc_cachetype = RC_REPLBUFF,
959 .pc_xdrressize = ST+WC,
963 .pc_func = nfsd3_proc_rmdir,
964 .pc_decode = nfs3svc_decode_diropargs,
965 .pc_encode = nfs3svc_encode_wccstatres,
966 .pc_release = nfs3svc_release_fhandle,
967 .pc_argsize = sizeof(struct nfsd3_diropargs),
968 .pc_argzero = sizeof(struct nfsd3_diropargs),
969 .pc_ressize = sizeof(struct nfsd3_wccstatres),
970 .pc_cachetype = RC_REPLBUFF,
971 .pc_xdrressize = ST+WC,
974 [NFS3PROC_RENAME] = {
975 .pc_func = nfsd3_proc_rename,
976 .pc_decode = nfs3svc_decode_renameargs,
977 .pc_encode = nfs3svc_encode_renameres,
978 .pc_release = nfs3svc_release_fhandle2,
979 .pc_argsize = sizeof(struct nfsd3_renameargs),
980 .pc_argzero = sizeof(struct nfsd3_renameargs),
981 .pc_ressize = sizeof(struct nfsd3_renameres),
982 .pc_cachetype = RC_REPLBUFF,
983 .pc_xdrressize = ST+WC+WC,
987 .pc_func = nfsd3_proc_link,
988 .pc_decode = nfs3svc_decode_linkargs,
989 .pc_encode = nfs3svc_encode_linkres,
990 .pc_release = nfs3svc_release_fhandle2,
991 .pc_argsize = sizeof(struct nfsd3_linkargs),
992 .pc_argzero = sizeof(struct nfsd3_linkargs),
993 .pc_ressize = sizeof(struct nfsd3_linkres),
994 .pc_cachetype = RC_REPLBUFF,
995 .pc_xdrressize = ST+pAT+WC,
998 [NFS3PROC_READDIR] = {
999 .pc_func = nfsd3_proc_readdir,
1000 .pc_decode = nfs3svc_decode_readdirargs,
1001 .pc_encode = nfs3svc_encode_readdirres,
1002 .pc_release = nfs3svc_release_fhandle,
1003 .pc_argsize = sizeof(struct nfsd3_readdirargs),
1004 .pc_argzero = sizeof(struct nfsd3_readdirargs),
1005 .pc_ressize = sizeof(struct nfsd3_readdirres),
1006 .pc_cachetype = RC_NOCACHE,
1007 .pc_name = "READDIR",
1009 [NFS3PROC_READDIRPLUS] = {
1010 .pc_func = nfsd3_proc_readdirplus,
1011 .pc_decode = nfs3svc_decode_readdirplusargs,
1012 .pc_encode = nfs3svc_encode_readdirres,
1013 .pc_release = nfs3svc_release_fhandle,
1014 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
1015 .pc_argzero = sizeof(struct nfsd3_readdirplusargs),
1016 .pc_ressize = sizeof(struct nfsd3_readdirres),
1017 .pc_cachetype = RC_NOCACHE,
1018 .pc_name = "READDIRPLUS",
1020 [NFS3PROC_FSSTAT] = {
1021 .pc_func = nfsd3_proc_fsstat,
1022 .pc_decode = nfs3svc_decode_fhandleargs,
1023 .pc_encode = nfs3svc_encode_fsstatres,
1024 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1025 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1026 .pc_ressize = sizeof(struct nfsd3_fsstatres),
1027 .pc_cachetype = RC_NOCACHE,
1028 .pc_xdrressize = ST+pAT+2*6+1,
1029 .pc_name = "FSSTAT",
1031 [NFS3PROC_FSINFO] = {
1032 .pc_func = nfsd3_proc_fsinfo,
1033 .pc_decode = nfs3svc_decode_fhandleargs,
1034 .pc_encode = nfs3svc_encode_fsinfores,
1035 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1036 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1037 .pc_ressize = sizeof(struct nfsd3_fsinfores),
1038 .pc_cachetype = RC_NOCACHE,
1039 .pc_xdrressize = ST+pAT+12,
1040 .pc_name = "FSINFO",
1042 [NFS3PROC_PATHCONF] = {
1043 .pc_func = nfsd3_proc_pathconf,
1044 .pc_decode = nfs3svc_decode_fhandleargs,
1045 .pc_encode = nfs3svc_encode_pathconfres,
1046 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
1047 .pc_argzero = sizeof(struct nfsd3_fhandleargs),
1048 .pc_ressize = sizeof(struct nfsd3_pathconfres),
1049 .pc_cachetype = RC_NOCACHE,
1050 .pc_xdrressize = ST+pAT+6,
1051 .pc_name = "PATHCONF",
1053 [NFS3PROC_COMMIT] = {
1054 .pc_func = nfsd3_proc_commit,
1055 .pc_decode = nfs3svc_decode_commitargs,
1056 .pc_encode = nfs3svc_encode_commitres,
1057 .pc_release = nfs3svc_release_fhandle,
1058 .pc_argsize = sizeof(struct nfsd3_commitargs),
1059 .pc_argzero = sizeof(struct nfsd3_commitargs),
1060 .pc_ressize = sizeof(struct nfsd3_commitres),
1061 .pc_cachetype = RC_NOCACHE,
1062 .pc_xdrressize = ST+WC+2,
1063 .pc_name = "COMMIT",
1067 static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures3)];
1068 const struct svc_version nfsd_version3 = {
1071 .vs_proc = nfsd_procedures3,
1072 .vs_dispatch = nfsd_dispatch,
1073 .vs_count = nfsd_count3,
1074 .vs_xdrsize = NFS3_SVC_XDRSIZE,