1/*
2 * Process version 3 NFS requests.
3 *
4 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
5 */
6
7#include <linux/fs.h>
8#include <linux/ext2_fs.h>
9#include <linux/magic.h>
10
11#include "cache.h"
12#include "xdr3.h"
13#include "vfs.h"
14
15#define NFSDDBG_FACILITY		NFSDDBG_PROC
16
17#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
18
19static int	nfs3_ftypes[] = {
20	0,			/* NF3NON */
21	S_IFREG,		/* NF3REG */
22	S_IFDIR,		/* NF3DIR */
23	S_IFBLK,		/* NF3BLK */
24	S_IFCHR,		/* NF3CHR */
25	S_IFLNK,		/* NF3LNK */
26	S_IFSOCK,		/* NF3SOCK */
27	S_IFIFO,		/* NF3FIFO */
28};
29
30/*
31 * NULL call.
32 */
33static __be32
34nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
35{
36	return nfs_ok;
37}
38
39/*
40 * Get a file's attributes
41 */
42static __be32
43nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
44					   struct nfsd3_attrstat *resp)
45{
46	__be32	nfserr;
47
48	dprintk("nfsd: GETATTR(3)  %s\n",
49		SVCFH_fmt(&argp->fh));
50
51	fh_copy(&resp->fh, &argp->fh);
52	nfserr = fh_verify(rqstp, &resp->fh, 0,
53			NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
54	if (nfserr)
55		RETURN_STATUS(nfserr);
56
57	nfserr = fh_getattr(&resp->fh, &resp->stat);
58
59	RETURN_STATUS(nfserr);
60}
61
62/*
63 * Set a file's attributes
64 */
65static __be32
66nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
67					   struct nfsd3_attrstat  *resp)
68{
69	__be32	nfserr;
70
71	dprintk("nfsd: SETATTR(3)  %s\n",
72				SVCFH_fmt(&argp->fh));
73
74	fh_copy(&resp->fh, &argp->fh);
75	nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
76			      argp->check_guard, argp->guardtime);
77	RETURN_STATUS(nfserr);
78}
79
80/*
81 * Look up a path name component
82 */
83static __be32
84nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
85					  struct nfsd3_diropres  *resp)
86{
87	__be32	nfserr;
88
89	dprintk("nfsd: LOOKUP(3)   %s %.*s\n",
90				SVCFH_fmt(&argp->fh),
91				argp->len,
92				argp->name);
93
94	fh_copy(&resp->dirfh, &argp->fh);
95	fh_init(&resp->fh, NFS3_FHSIZE);
96
97	nfserr = nfsd_lookup(rqstp, &resp->dirfh,
98				    argp->name,
99				    argp->len,
100				    &resp->fh);
101	RETURN_STATUS(nfserr);
102}
103
104/*
105 * Check file access
106 */
107static __be32
108nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
109					  struct nfsd3_accessres *resp)
110{
111	__be32	nfserr;
112
113	dprintk("nfsd: ACCESS(3)   %s 0x%x\n",
114				SVCFH_fmt(&argp->fh),
115				argp->access);
116
117	fh_copy(&resp->fh, &argp->fh);
118	resp->access = argp->access;
119	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
120	RETURN_STATUS(nfserr);
121}
122
123/*
124 * Read a symlink.
125 */
126static __be32
127nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
128					   struct nfsd3_readlinkres *resp)
129{
130	__be32 nfserr;
131
132	dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
133
134	/* Read the symlink. */
135	fh_copy(&resp->fh, &argp->fh);
136	resp->len = NFS3_MAXPATHLEN;
137	nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
138	RETURN_STATUS(nfserr);
139}
140
141/*
142 * Read a portion of a file.
143 */
144static __be32
145nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
146				        struct nfsd3_readres  *resp)
147{
148	__be32	nfserr;
149	u32	max_blocksize = svc_max_payload(rqstp);
150
151	dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
152				SVCFH_fmt(&argp->fh),
153				(unsigned long) argp->count,
154				(unsigned long long) argp->offset);
155
156	/* Obtain buffer pointer for payload.
157	 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
158	 * + 1 (xdr opaque byte count) = 26
159	 */
160	resp->count = min(argp->count, max_blocksize);
161	svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
162
163	fh_copy(&resp->fh, &argp->fh);
164	nfserr = nfsd_read(rqstp, &resp->fh,
165				  argp->offset,
166			   	  rqstp->rq_vec, argp->vlen,
167				  &resp->count);
168	if (nfserr == 0) {
169		struct inode	*inode = d_inode(resp->fh.fh_dentry);
170
171		resp->eof = (argp->offset + resp->count) >= inode->i_size;
172	}
173
174	RETURN_STATUS(nfserr);
175}
176
177/*
178 * Write data to a file
179 */
180static __be32
181nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
182					 struct nfsd3_writeres  *resp)
183{
184	__be32	nfserr;
185	unsigned long cnt = argp->len;
186
187	dprintk("nfsd: WRITE(3)    %s %d bytes at %Lu%s\n",
188				SVCFH_fmt(&argp->fh),
189				argp->len,
190				(unsigned long long) argp->offset,
191				argp->stable? " stable" : "");
192
193	fh_copy(&resp->fh, &argp->fh);
194	resp->committed = argp->stable;
195	nfserr = nfsd_write(rqstp, &resp->fh, NULL,
196				   argp->offset,
197				   rqstp->rq_vec, argp->vlen,
198				   &cnt,
199				   &resp->committed);
200	resp->count = cnt;
201	RETURN_STATUS(nfserr);
202}
203
204/*
205 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
206 * At least in theory; we'll see how it fares in practice when the
207 * first reports about SunOS compatibility problems start to pour in...
208 */
209static __be32
210nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
211					  struct nfsd3_diropres   *resp)
212{
213	svc_fh		*dirfhp, *newfhp = NULL;
214	struct iattr	*attr;
215	__be32		nfserr;
216
217	dprintk("nfsd: CREATE(3)   %s %.*s\n",
218				SVCFH_fmt(&argp->fh),
219				argp->len,
220				argp->name);
221
222	dirfhp = fh_copy(&resp->dirfh, &argp->fh);
223	newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
224	attr   = &argp->attrs;
225
226	/* Unfudge the mode bits */
227	attr->ia_mode &= ~S_IFMT;
228	if (!(attr->ia_valid & ATTR_MODE)) {
229		attr->ia_valid |= ATTR_MODE;
230		attr->ia_mode = S_IFREG;
231	} else {
232		attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
233	}
234
235	/* Now create the file and set attributes */
236	nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
237				attr, newfhp,
238				argp->createmode, (u32 *)argp->verf, NULL, NULL);
239
240	RETURN_STATUS(nfserr);
241}
242
243/*
244 * Make directory. This operation is not idempotent.
245 */
246static __be32
247nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
248					 struct nfsd3_diropres   *resp)
249{
250	__be32	nfserr;
251
252	dprintk("nfsd: MKDIR(3)    %s %.*s\n",
253				SVCFH_fmt(&argp->fh),
254				argp->len,
255				argp->name);
256
257	argp->attrs.ia_valid &= ~ATTR_SIZE;
258	fh_copy(&resp->dirfh, &argp->fh);
259	fh_init(&resp->fh, NFS3_FHSIZE);
260	nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
261				    &argp->attrs, S_IFDIR, 0, &resp->fh);
262	fh_unlock(&resp->dirfh);
263	RETURN_STATUS(nfserr);
264}
265
266static __be32
267nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
268					   struct nfsd3_diropres    *resp)
269{
270	__be32	nfserr;
271
272	dprintk("nfsd: SYMLINK(3)  %s %.*s -> %.*s\n",
273				SVCFH_fmt(&argp->ffh),
274				argp->flen, argp->fname,
275				argp->tlen, argp->tname);
276
277	fh_copy(&resp->dirfh, &argp->ffh);
278	fh_init(&resp->fh, NFS3_FHSIZE);
279	nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
280						   argp->tname, &resp->fh);
281	RETURN_STATUS(nfserr);
282}
283
284/*
285 * Make socket/fifo/device.
286 */
287static __be32
288nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
289					 struct nfsd3_diropres  *resp)
290{
291	__be32	nfserr;
292	int type;
293	dev_t	rdev = 0;
294
295	dprintk("nfsd: MKNOD(3)    %s %.*s\n",
296				SVCFH_fmt(&argp->fh),
297				argp->len,
298				argp->name);
299
300	fh_copy(&resp->dirfh, &argp->fh);
301	fh_init(&resp->fh, NFS3_FHSIZE);
302
303	if (argp->ftype == 0 || argp->ftype >= NF3BAD)
304		RETURN_STATUS(nfserr_inval);
305	if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
306		rdev = MKDEV(argp->major, argp->minor);
307		if (MAJOR(rdev) != argp->major ||
308		    MINOR(rdev) != argp->minor)
309			RETURN_STATUS(nfserr_inval);
310	} else
311		if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
312			RETURN_STATUS(nfserr_inval);
313
314	type = nfs3_ftypes[argp->ftype];
315	nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
316				    &argp->attrs, type, rdev, &resp->fh);
317	fh_unlock(&resp->dirfh);
318	RETURN_STATUS(nfserr);
319}
320
321/*
322 * Remove file/fifo/socket etc.
323 */
324static __be32
325nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
326					  struct nfsd3_attrstat  *resp)
327{
328	__be32	nfserr;
329
330	dprintk("nfsd: REMOVE(3)   %s %.*s\n",
331				SVCFH_fmt(&argp->fh),
332				argp->len,
333				argp->name);
334
335	/* Unlink. -S_IFDIR means file must not be a directory */
336	fh_copy(&resp->fh, &argp->fh);
337	nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
338	fh_unlock(&resp->fh);
339	RETURN_STATUS(nfserr);
340}
341
342/*
343 * Remove a directory
344 */
345static __be32
346nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
347					 struct nfsd3_attrstat  *resp)
348{
349	__be32	nfserr;
350
351	dprintk("nfsd: RMDIR(3)    %s %.*s\n",
352				SVCFH_fmt(&argp->fh),
353				argp->len,
354				argp->name);
355
356	fh_copy(&resp->fh, &argp->fh);
357	nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
358	fh_unlock(&resp->fh);
359	RETURN_STATUS(nfserr);
360}
361
362static __be32
363nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
364					  struct nfsd3_renameres  *resp)
365{
366	__be32	nfserr;
367
368	dprintk("nfsd: RENAME(3)   %s %.*s ->\n",
369				SVCFH_fmt(&argp->ffh),
370				argp->flen,
371				argp->fname);
372	dprintk("nfsd: -> %s %.*s\n",
373				SVCFH_fmt(&argp->tfh),
374				argp->tlen,
375				argp->tname);
376
377	fh_copy(&resp->ffh, &argp->ffh);
378	fh_copy(&resp->tfh, &argp->tfh);
379	nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
380				    &resp->tfh, argp->tname, argp->tlen);
381	RETURN_STATUS(nfserr);
382}
383
384static __be32
385nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
386					struct nfsd3_linkres  *resp)
387{
388	__be32	nfserr;
389
390	dprintk("nfsd: LINK(3)     %s ->\n",
391				SVCFH_fmt(&argp->ffh));
392	dprintk("nfsd:   -> %s %.*s\n",
393				SVCFH_fmt(&argp->tfh),
394				argp->tlen,
395				argp->tname);
396
397	fh_copy(&resp->fh,  &argp->ffh);
398	fh_copy(&resp->tfh, &argp->tfh);
399	nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
400				  &resp->fh);
401	RETURN_STATUS(nfserr);
402}
403
404/*
405 * Read a portion of a directory.
406 */
407static __be32
408nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
409					   struct nfsd3_readdirres  *resp)
410{
411	__be32		nfserr;
412	int		count;
413
414	dprintk("nfsd: READDIR(3)  %s %d bytes at %d\n",
415				SVCFH_fmt(&argp->fh),
416				argp->count, (u32) argp->cookie);
417
418	/* Make sure we've room for the NULL ptr & eof flag, and shrink to
419	 * client read size */
420	count = (argp->count >> 2) - 2;
421
422	/* Read directory and encode entries on the fly */
423	fh_copy(&resp->fh, &argp->fh);
424
425	resp->buflen = count;
426	resp->common.err = nfs_ok;
427	resp->buffer = argp->buffer;
428	resp->rqstp = rqstp;
429	nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
430					&resp->common, nfs3svc_encode_entry);
431	memcpy(resp->verf, argp->verf, 8);
432	resp->count = resp->buffer - argp->buffer;
433	if (resp->offset)
434		xdr_encode_hyper(resp->offset, argp->cookie);
435
436	RETURN_STATUS(nfserr);
437}
438
439/*
440 * Read a portion of a directory, including file handles and attrs.
441 * For now, we choose to ignore the dircount parameter.
442 */
443static __be32
444nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
445					       struct nfsd3_readdirres  *resp)
446{
447	__be32	nfserr;
448	int	count = 0;
449	loff_t	offset;
450	struct page **p;
451	caddr_t	page_addr = NULL;
452
453	dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
454				SVCFH_fmt(&argp->fh),
455				argp->count, (u32) argp->cookie);
456
457	/* Convert byte count to number of words (i.e. >> 2),
458	 * and reserve room for the NULL ptr & eof flag (-2 words) */
459	resp->count = (argp->count >> 2) - 2;
460
461	/* Read directory and encode entries on the fly */
462	fh_copy(&resp->fh, &argp->fh);
463
464	resp->common.err = nfs_ok;
465	resp->buffer = argp->buffer;
466	resp->buflen = resp->count;
467	resp->rqstp = rqstp;
468	offset = argp->cookie;
469
470	nfserr = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
471	if (nfserr)
472		RETURN_STATUS(nfserr);
473
474	if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS)
475		RETURN_STATUS(nfserr_notsupp);
476
477	nfserr = nfsd_readdir(rqstp, &resp->fh,
478				     &offset,
479				     &resp->common,
480				     nfs3svc_encode_entry_plus);
481	memcpy(resp->verf, argp->verf, 8);
482	for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
483		page_addr = page_address(*p);
484
485		if (((caddr_t)resp->buffer >= page_addr) &&
486		    ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
487			count += (caddr_t)resp->buffer - page_addr;
488			break;
489		}
490		count += PAGE_SIZE;
491	}
492	resp->count = count >> 2;
493	if (resp->offset) {
494		if (unlikely(resp->offset1)) {
495			/* we ended up with offset on a page boundary */
496			*resp->offset = htonl(offset >> 32);
497			*resp->offset1 = htonl(offset & 0xffffffff);
498			resp->offset1 = NULL;
499		} else {
500			xdr_encode_hyper(resp->offset, offset);
501		}
502	}
503
504	RETURN_STATUS(nfserr);
505}
506
507/*
508 * Get file system stats
509 */
510static __be32
511nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
512					   struct nfsd3_fsstatres *resp)
513{
514	__be32	nfserr;
515
516	dprintk("nfsd: FSSTAT(3)   %s\n",
517				SVCFH_fmt(&argp->fh));
518
519	nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
520	fh_put(&argp->fh);
521	RETURN_STATUS(nfserr);
522}
523
524/*
525 * Get file system info
526 */
527static __be32
528nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
529					   struct nfsd3_fsinfores *resp)
530{
531	__be32	nfserr;
532	u32	max_blocksize = svc_max_payload(rqstp);
533
534	dprintk("nfsd: FSINFO(3)   %s\n",
535				SVCFH_fmt(&argp->fh));
536
537	resp->f_rtmax  = max_blocksize;
538	resp->f_rtpref = max_blocksize;
539	resp->f_rtmult = PAGE_SIZE;
540	resp->f_wtmax  = max_blocksize;
541	resp->f_wtpref = max_blocksize;
542	resp->f_wtmult = PAGE_SIZE;
543	resp->f_dtpref = PAGE_SIZE;
544	resp->f_maxfilesize = ~(u32) 0;
545	resp->f_properties = NFS3_FSF_DEFAULT;
546
547	nfserr = fh_verify(rqstp, &argp->fh, 0,
548			NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
549
550	/* Check special features of the file system. May request
551	 * different read/write sizes for file systems known to have
552	 * problems with large blocks */
553	if (nfserr == 0) {
554		struct super_block *sb = d_inode(argp->fh.fh_dentry)->i_sb;
555
556		/* Note that we don't care for remote fs's here */
557		if (sb->s_magic == MSDOS_SUPER_MAGIC) {
558			resp->f_properties = NFS3_FSF_BILLYBOY;
559		}
560		resp->f_maxfilesize = sb->s_maxbytes;
561	}
562
563	fh_put(&argp->fh);
564	RETURN_STATUS(nfserr);
565}
566
567/*
568 * Get pathconf info for the specified file
569 */
570static __be32
571nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
572					     struct nfsd3_pathconfres *resp)
573{
574	__be32	nfserr;
575
576	dprintk("nfsd: PATHCONF(3) %s\n",
577				SVCFH_fmt(&argp->fh));
578
579	/* Set default pathconf */
580	resp->p_link_max = 255;		/* at least */
581	resp->p_name_max = 255;		/* at least */
582	resp->p_no_trunc = 0;
583	resp->p_chown_restricted = 1;
584	resp->p_case_insensitive = 0;
585	resp->p_case_preserving = 1;
586
587	nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
588
589	if (nfserr == 0) {
590		struct super_block *sb = d_inode(argp->fh.fh_dentry)->i_sb;
591
592		/* Note that we don't care for remote fs's here */
593		switch (sb->s_magic) {
594		case EXT2_SUPER_MAGIC:
595			resp->p_link_max = EXT2_LINK_MAX;
596			resp->p_name_max = EXT2_NAME_LEN;
597			break;
598		case MSDOS_SUPER_MAGIC:
599			resp->p_case_insensitive = 1;
600			resp->p_case_preserving  = 0;
601			break;
602		}
603	}
604
605	fh_put(&argp->fh);
606	RETURN_STATUS(nfserr);
607}
608
609
610/*
611 * Commit a file (range) to stable storage.
612 */
613static __be32
614nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
615					   struct nfsd3_commitres  *resp)
616{
617	__be32	nfserr;
618
619	dprintk("nfsd: COMMIT(3)   %s %u@%Lu\n",
620				SVCFH_fmt(&argp->fh),
621				argp->count,
622				(unsigned long long) argp->offset);
623
624	if (argp->offset > NFS_OFFSET_MAX)
625		RETURN_STATUS(nfserr_inval);
626
627	fh_copy(&resp->fh, &argp->fh);
628	nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
629
630	RETURN_STATUS(nfserr);
631}
632
633
634/*
635 * NFSv3 Server procedures.
636 * Only the results of non-idempotent operations are cached.
637 */
638#define nfs3svc_decode_fhandleargs	nfs3svc_decode_fhandle
639#define nfs3svc_encode_attrstatres	nfs3svc_encode_attrstat
640#define nfs3svc_encode_wccstatres	nfs3svc_encode_wccstat
641#define nfsd3_mkdirargs			nfsd3_createargs
642#define nfsd3_readdirplusargs		nfsd3_readdirargs
643#define nfsd3_fhandleargs		nfsd_fhandle
644#define nfsd3_fhandleres		nfsd3_attrstat
645#define nfsd3_attrstatres		nfsd3_attrstat
646#define nfsd3_wccstatres		nfsd3_attrstat
647#define nfsd3_createres			nfsd3_diropres
648#define nfsd3_voidres			nfsd3_voidargs
649struct nfsd3_voidargs { int dummy; };
650
651#define PROC(name, argt, rest, relt, cache, respsize)	\
652 { (svc_procfunc) nfsd3_proc_##name,		\
653   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
654   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
655   (kxdrproc_t) nfs3svc_release_##relt,		\
656   sizeof(struct nfsd3_##argt##args),		\
657   sizeof(struct nfsd3_##rest##res),		\
658   0,						\
659   cache,					\
660   respsize,					\
661 }
662
663#define ST 1		/* status*/
664#define FH 17		/* filehandle with length */
665#define AT 21		/* attributes */
666#define pAT (1+AT)	/* post attributes - conditional */
667#define WC (7+pAT)	/* WCC attributes */
668
669static struct svc_procedure		nfsd_procedures3[22] = {
670	[NFS3PROC_NULL] = {
671		.pc_func = (svc_procfunc) nfsd3_proc_null,
672		.pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
673		.pc_argsize = sizeof(struct nfsd3_voidargs),
674		.pc_ressize = sizeof(struct nfsd3_voidres),
675		.pc_cachetype = RC_NOCACHE,
676		.pc_xdrressize = ST,
677	},
678	[NFS3PROC_GETATTR] = {
679		.pc_func = (svc_procfunc) nfsd3_proc_getattr,
680		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
681		.pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
682		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
683		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
684		.pc_ressize = sizeof(struct nfsd3_attrstatres),
685		.pc_cachetype = RC_NOCACHE,
686		.pc_xdrressize = ST+AT,
687	},
688	[NFS3PROC_SETATTR] = {
689		.pc_func = (svc_procfunc) nfsd3_proc_setattr,
690		.pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
691		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
692		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
693		.pc_argsize = sizeof(struct nfsd3_sattrargs),
694		.pc_ressize = sizeof(struct nfsd3_wccstatres),
695		.pc_cachetype = RC_REPLBUFF,
696		.pc_xdrressize = ST+WC,
697	},
698	[NFS3PROC_LOOKUP] = {
699		.pc_func = (svc_procfunc) nfsd3_proc_lookup,
700		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
701		.pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
702		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
703		.pc_argsize = sizeof(struct nfsd3_diropargs),
704		.pc_ressize = sizeof(struct nfsd3_diropres),
705		.pc_cachetype = RC_NOCACHE,
706		.pc_xdrressize = ST+FH+pAT+pAT,
707	},
708	[NFS3PROC_ACCESS] = {
709		.pc_func = (svc_procfunc) nfsd3_proc_access,
710		.pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
711		.pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
712		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
713		.pc_argsize = sizeof(struct nfsd3_accessargs),
714		.pc_ressize = sizeof(struct nfsd3_accessres),
715		.pc_cachetype = RC_NOCACHE,
716		.pc_xdrressize = ST+pAT+1,
717	},
718	[NFS3PROC_READLINK] = {
719		.pc_func = (svc_procfunc) nfsd3_proc_readlink,
720		.pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
721		.pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
722		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
723		.pc_argsize = sizeof(struct nfsd3_readlinkargs),
724		.pc_ressize = sizeof(struct nfsd3_readlinkres),
725		.pc_cachetype = RC_NOCACHE,
726		.pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
727	},
728	[NFS3PROC_READ] = {
729		.pc_func = (svc_procfunc) nfsd3_proc_read,
730		.pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
731		.pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
732		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
733		.pc_argsize = sizeof(struct nfsd3_readargs),
734		.pc_ressize = sizeof(struct nfsd3_readres),
735		.pc_cachetype = RC_NOCACHE,
736		.pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
737	},
738	[NFS3PROC_WRITE] = {
739		.pc_func = (svc_procfunc) nfsd3_proc_write,
740		.pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
741		.pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
742		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
743		.pc_argsize = sizeof(struct nfsd3_writeargs),
744		.pc_ressize = sizeof(struct nfsd3_writeres),
745		.pc_cachetype = RC_REPLBUFF,
746		.pc_xdrressize = ST+WC+4,
747	},
748	[NFS3PROC_CREATE] = {
749		.pc_func = (svc_procfunc) nfsd3_proc_create,
750		.pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
751		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
752		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
753		.pc_argsize = sizeof(struct nfsd3_createargs),
754		.pc_ressize = sizeof(struct nfsd3_createres),
755		.pc_cachetype = RC_REPLBUFF,
756		.pc_xdrressize = ST+(1+FH+pAT)+WC,
757	},
758	[NFS3PROC_MKDIR] = {
759		.pc_func = (svc_procfunc) nfsd3_proc_mkdir,
760		.pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
761		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
762		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
763		.pc_argsize = sizeof(struct nfsd3_mkdirargs),
764		.pc_ressize = sizeof(struct nfsd3_createres),
765		.pc_cachetype = RC_REPLBUFF,
766		.pc_xdrressize = ST+(1+FH+pAT)+WC,
767	},
768	[NFS3PROC_SYMLINK] = {
769		.pc_func = (svc_procfunc) nfsd3_proc_symlink,
770		.pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
771		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
772		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
773		.pc_argsize = sizeof(struct nfsd3_symlinkargs),
774		.pc_ressize = sizeof(struct nfsd3_createres),
775		.pc_cachetype = RC_REPLBUFF,
776		.pc_xdrressize = ST+(1+FH+pAT)+WC,
777	},
778	[NFS3PROC_MKNOD] = {
779		.pc_func = (svc_procfunc) nfsd3_proc_mknod,
780		.pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
781		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
782		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
783		.pc_argsize = sizeof(struct nfsd3_mknodargs),
784		.pc_ressize = sizeof(struct nfsd3_createres),
785		.pc_cachetype = RC_REPLBUFF,
786		.pc_xdrressize = ST+(1+FH+pAT)+WC,
787	},
788	[NFS3PROC_REMOVE] = {
789		.pc_func = (svc_procfunc) nfsd3_proc_remove,
790		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
791		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
792		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
793		.pc_argsize = sizeof(struct nfsd3_diropargs),
794		.pc_ressize = sizeof(struct nfsd3_wccstatres),
795		.pc_cachetype = RC_REPLBUFF,
796		.pc_xdrressize = ST+WC,
797	},
798	[NFS3PROC_RMDIR] = {
799		.pc_func = (svc_procfunc) nfsd3_proc_rmdir,
800		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
801		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
802		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
803		.pc_argsize = sizeof(struct nfsd3_diropargs),
804		.pc_ressize = sizeof(struct nfsd3_wccstatres),
805		.pc_cachetype = RC_REPLBUFF,
806		.pc_xdrressize = ST+WC,
807	},
808	[NFS3PROC_RENAME] = {
809		.pc_func = (svc_procfunc) nfsd3_proc_rename,
810		.pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
811		.pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
812		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
813		.pc_argsize = sizeof(struct nfsd3_renameargs),
814		.pc_ressize = sizeof(struct nfsd3_renameres),
815		.pc_cachetype = RC_REPLBUFF,
816		.pc_xdrressize = ST+WC+WC,
817	},
818	[NFS3PROC_LINK] = {
819		.pc_func = (svc_procfunc) nfsd3_proc_link,
820		.pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
821		.pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
822		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
823		.pc_argsize = sizeof(struct nfsd3_linkargs),
824		.pc_ressize = sizeof(struct nfsd3_linkres),
825		.pc_cachetype = RC_REPLBUFF,
826		.pc_xdrressize = ST+pAT+WC,
827	},
828	[NFS3PROC_READDIR] = {
829		.pc_func = (svc_procfunc) nfsd3_proc_readdir,
830		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
831		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
832		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
833		.pc_argsize = sizeof(struct nfsd3_readdirargs),
834		.pc_ressize = sizeof(struct nfsd3_readdirres),
835		.pc_cachetype = RC_NOCACHE,
836	},
837	[NFS3PROC_READDIRPLUS] = {
838		.pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
839		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
840		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
841		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
842		.pc_argsize = sizeof(struct nfsd3_readdirplusargs),
843		.pc_ressize = sizeof(struct nfsd3_readdirres),
844		.pc_cachetype = RC_NOCACHE,
845	},
846	[NFS3PROC_FSSTAT] = {
847		.pc_func = (svc_procfunc) nfsd3_proc_fsstat,
848		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
849		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
850		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
851		.pc_ressize = sizeof(struct nfsd3_fsstatres),
852		.pc_cachetype = RC_NOCACHE,
853		.pc_xdrressize = ST+pAT+2*6+1,
854	},
855	[NFS3PROC_FSINFO] = {
856		.pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
857		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
858		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
859		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
860		.pc_ressize = sizeof(struct nfsd3_fsinfores),
861		.pc_cachetype = RC_NOCACHE,
862		.pc_xdrressize = ST+pAT+12,
863	},
864	[NFS3PROC_PATHCONF] = {
865		.pc_func = (svc_procfunc) nfsd3_proc_pathconf,
866		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
867		.pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
868		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
869		.pc_ressize = sizeof(struct nfsd3_pathconfres),
870		.pc_cachetype = RC_NOCACHE,
871		.pc_xdrressize = ST+pAT+6,
872	},
873	[NFS3PROC_COMMIT] = {
874		.pc_func = (svc_procfunc) nfsd3_proc_commit,
875		.pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
876		.pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
877		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
878		.pc_argsize = sizeof(struct nfsd3_commitargs),
879		.pc_ressize = sizeof(struct nfsd3_commitres),
880		.pc_cachetype = RC_NOCACHE,
881		.pc_xdrressize = ST+WC+2,
882	},
883};
884
885struct svc_version	nfsd_version3 = {
886		.vs_vers	= 3,
887		.vs_nproc	= 22,
888		.vs_proc	= nfsd_procedures3,
889		.vs_dispatch	= nfsd_dispatch,
890		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
891};
892