xref: /dragonfly/sys/vfs/nfs/nfsm_subs.h (revision 2e3ed54d)
1 /*
2  * Copyright (c) 1989, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Rick Macklem at The University of Guelph.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  *	@(#)nfsm_subs.h	8.2 (Berkeley) 3/30/95
37  * $FreeBSD: src/sys/nfs/nfsm_subs.h,v 1.27.2.1 2000/10/28 16:27:27 dwmalone Exp $
38  * $DragonFly: src/sys/vfs/nfs/nfsm_subs.h,v 1.8 2005/05/29 10:08:36 hsu Exp $
39  */
40 
41 
42 #ifndef _NFS_NFSM_SUBS_H_
43 #define _NFS_NFSM_SUBS_H_
44 
45 struct ucred;
46 struct vnode;
47 
48 /*
49  * These macros do strange and peculiar things to mbuf chains for
50  * the assistance of the nfs code. To attempt to use them for any
51  * other purpose will be dangerous. (they make weird assumptions)
52  */
53 
54 /*
55  * First define what the actual subs. return
56  */
57 struct mbuf *nfsm_reqh (struct vnode *vp, u_long procid, int hsiz,
58 			    caddr_t *bposp);
59 struct mbuf *nfsm_rpchead (struct ucred *cr, int nmflag, int procid,
60 			       int auth_type, int auth_len, char *auth_str,
61 			       int verf_len, char *verf_str,
62 			       struct mbuf *mrest, int mrest_len,
63 			       struct mbuf **mbp, u_int32_t *xidp);
64 
65 #define	M_HASCL(m)	((m)->m_flags & M_EXT)
66 #define	NFSMINOFF(m) \
67 	do { \
68 		if (M_HASCL(m)) \
69 			(m)->m_data = (m)->m_ext.ext_buf; \
70 		else if ((m)->m_flags & M_PKTHDR) \
71 			(m)->m_data = (m)->m_pktdat; \
72 		else \
73 			(m)->m_data = (m)->m_dat; \
74 	} while (0)
75 #define	NFSMADV(m, s) \
76 	do { \
77 		(m)->m_data += (s); \
78 	} while (0)
79 #define	NFSMSIZ(m)	((M_HASCL(m))?MCLBYTES: \
80 				(((m)->m_flags & M_PKTHDR)?MHLEN:MLEN))
81 
82 /*
83  * Now for the macros that do the simple stuff and call the functions
84  * for the hard stuff.
85  * These macros use several vars. declared in nfsm_reqhead and these
86  * vars. must not be used elsewhere unless you are careful not to corrupt
87  * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
88  * that may be used so long as the value is not expected to retained
89  * after a macro.
90  * I know, this is kind of dorkey, but it makes the actual op functions
91  * fairly clean and deals with the mess caused by the xdr discriminating
92  * unions.
93  */
94 
95 #define	nfsm_build(a,c,s) \
96 	do { \
97 		if ((s) > M_TRAILINGSPACE(mb)) { \
98 			MGET(mb2, MB_WAIT, MT_DATA); \
99 			if ((s) > MLEN) \
100 				panic("build > MLEN"); \
101 			mb->m_next = mb2; \
102 			mb = mb2; \
103 			mb->m_len = 0; \
104 			bpos = mtod(mb, caddr_t); \
105 		} \
106 		(a) = (c)(bpos); \
107 		mb->m_len += (s); \
108 		bpos += (s); \
109 	} while (0)
110 
111 #define	nfsm_dissect(a, c, s) \
112 	do { \
113 		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
114 		if (t1 >= (s)) { \
115 			(a) = (c)(dpos); \
116 			dpos += (s); \
117 		} else if ((t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \
118 			error = t1; \
119 			m_freem(mrep); \
120 			goto nfsmout; \
121 		} else { \
122 			(a) = (c)cp2; \
123 		} \
124 	} while (0)
125 
126 #define nfsm_fhtom(v, v3) \
127 	do { \
128 		if (v3) { \
129 			t2 = nfsm_rndup(VTONFS(v)->n_fhsize) + NFSX_UNSIGNED; \
130 			if (t2 <= M_TRAILINGSPACE(mb)) { \
131 				nfsm_build(tl, u_int32_t *, t2); \
132 				*tl++ = txdr_unsigned(VTONFS(v)->n_fhsize); \
133 				*(tl + ((t2>>2) - 2)) = 0; \
134 				bcopy((caddr_t)VTONFS(v)->n_fhp,(caddr_t)tl, \
135 					VTONFS(v)->n_fhsize); \
136 			} else if ((t2 = nfsm_strtmbuf(&mb, &bpos, \
137 				(caddr_t)VTONFS(v)->n_fhp, \
138 				VTONFS(v)->n_fhsize)) != 0) { \
139 				error = t2; \
140 				m_freem(mreq); \
141 				goto nfsmout; \
142 			} \
143 		} else { \
144 			nfsm_build(cp, caddr_t, NFSX_V2FH); \
145 			bcopy((caddr_t)VTONFS(v)->n_fhp, cp, NFSX_V2FH); \
146 		} \
147 	} while (0)
148 
149 #define nfsm_srvfhtom(f, v3) \
150 	do { \
151 		if (v3) { \
152 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FH);\
153 			*tl++ = txdr_unsigned(NFSX_V3FH); \
154 			bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
155 		} else { \
156 			nfsm_build(cp, caddr_t, NFSX_V2FH); \
157 			bcopy((caddr_t)(f), cp, NFSX_V2FH); \
158 		} \
159 	} while (0)
160 
161 #define nfsm_srvpostop_fh(f) \
162 	do { \
163 		nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED + NFSX_V3FH); \
164 		*tl++ = nfs_true; \
165 		*tl++ = txdr_unsigned(NFSX_V3FH); \
166 		bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
167 	} while (0)
168 
169 #define nfsm_mtofh(d, v, v3, f) \
170 	do { \
171 		struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \
172 		if (v3) { \
173 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
174 			(f) = fxdr_unsigned(int, *tl); \
175 		} else \
176 			(f) = 1; \
177 		if (f) { \
178 			nfsm_getfh(ttfhp, ttfhsize, (v3)); \
179 			if ((t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \
180 				&ttnp)) != 0) { \
181 				error = t1; \
182 				m_freem(mrep); \
183 				goto nfsmout; \
184 			} \
185 			(v) = NFSTOV(ttnp); \
186 		} \
187 		if (v3) { \
188 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
189 			if (f) \
190 				(f) = fxdr_unsigned(int, *tl); \
191 			else if (fxdr_unsigned(int, *tl)) \
192 				nfsm_adv(NFSX_V3FATTR); \
193 		} \
194 		if (f) \
195 			nfsm_loadattr((v), (struct vattr *)0); \
196 	} while (0)
197 
198 #define nfsm_getfh(f, s, v3) \
199 	do { \
200 		if (v3) { \
201 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
202 			if (((s) = fxdr_unsigned(int, *tl)) <= 0 || \
203 				(s) > NFSX_V3FHMAX) { \
204 				m_freem(mrep); \
205 				error = EBADRPC; \
206 				goto nfsmout; \
207 			} \
208 		} else \
209 			(s) = NFSX_V2FH; \
210 		nfsm_dissect((f), nfsfh_t *, nfsm_rndup(s)); \
211 	} while (0)
212 
213 #define	nfsm_loadattr(v, a) \
214 	do { \
215 		struct vnode *ttvp = (v); \
216 		if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, (a), 0)) != 0) { \
217 			error = t1; \
218 			m_freem(mrep); \
219 			goto nfsmout; \
220 		} \
221 		(v) = ttvp; \
222 	} while (0)
223 
224 #define	nfsm_postop_attr(v, f, lflags) \
225 	do { \
226 		struct vnode *ttvp = (v); \
227 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
228 		if (((f) = fxdr_unsigned(int, *tl)) != 0) { \
229 			if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, \
230 				(struct vattr *)0, lflags)) != 0) { \
231 				error = t1; \
232 				(f) = 0; \
233 				m_freem(mrep); \
234 				goto nfsmout; \
235 			} \
236 			(v) = ttvp; \
237 		} \
238 	} while (0)
239 
240 /*
241  * This function updates the attribute cache based on data returned in the
242  * NFS reply for NFS RPCs that modify the target file.  If the RPC succeeds
243  * a 'before' and 'after' mtime is returned that allows us to determine if
244  * the new mtime attribute represents our modification or someone else's
245  * modification.
246  *
247  * The flag argument returns non-0 if the original times matched, zero if
248  * they did not match.  NRMODIFIED is automatically set if the before time
249  * does not match the original n_mtime, and n_mtime is automatically updated
250  * to the new after time (by nfsm_postop_attr()).
251  */
252 /* Used as (f) for nfsm_wcc_data() */
253 #define NFSV3_WCCRATTR	0
254 #define NFSV3_WCCCHK	1
255 
256 #define	nfsm_wcc_data(v, f) \
257 	do { \
258 		int ttattrf, ttretf = 0; \
259 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
260 		if (*tl == nfs_true) { \
261 			nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \
262 			if (f) { \
263 				ttretf = (VTONFS(v)->n_mtime == \
264 					fxdr_unsigned(u_int32_t, *(tl + 2))); \
265 				if (!ttretf) \
266 					VTONFS(v)->n_flag |= NRMODIFIED; \
267 			} \
268 			nfsm_postop_attr((v), ttattrf, NFS_LATTR_NOSHRINK|NFS_LATTR_NOMTIMECHECK); \
269 		} else { \
270 			nfsm_postop_attr((v), ttattrf, NFS_LATTR_NOSHRINK); \
271 		} \
272 		if (f) { \
273 			(f) = ttretf; \
274 		} else { \
275 			(f) = ttattrf; \
276 		} \
277 	} while (0)
278 
279 /* If full is true, set all fields, otherwise just set mode and time fields */
280 #define nfsm_v3attrbuild(a, full) \
281 	do { \
282 		if ((a)->va_mode != (mode_t)VNOVAL) {			\
283 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
284 			*tl++ = nfs_true;				\
285 			*tl = txdr_unsigned((a)->va_mode);		\
286 		} else {						\
287 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
288 			*tl = nfs_false;				\
289 		}							\
290 		if ((full) && (a)->va_uid != (uid_t)VNOVAL) {		\
291 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
292 			*tl++ = nfs_true;				\
293 			*tl = txdr_unsigned((a)->va_uid);		\
294 		} else {						\
295 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
296 			*tl = nfs_false;				\
297 		}							\
298 		if ((full) && (a)->va_gid != (gid_t)VNOVAL) {		\
299 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
300 			*tl++ = nfs_true;				\
301 			*tl = txdr_unsigned((a)->va_gid);		\
302 		} else {						\
303 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
304 			*tl = nfs_false;				\
305 		}							\
306 		if ((full) && (a)->va_size != VNOVAL) {			\
307 			nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);	\
308 			*tl++ = nfs_true;				\
309 			txdr_hyper((a)->va_size, tl);			\
310 		} else {						\
311 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
312 			*tl = nfs_false;				\
313 		}							\
314 		if ((a)->va_atime.tv_sec != VNOVAL) {			\
315 			if ((a)->va_atime.tv_sec != time_second) {	\
316 				nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
317 				*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
318 				txdr_nfsv3time(&(a)->va_atime, tl);	\
319 			} else {					\
320 				nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
321 				*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
322 			}						\
323 		} else {						\
324 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
325 			*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);	\
326 		}							\
327 		if ((a)->va_mtime.tv_sec != VNOVAL) {			\
328 			if ((a)->va_mtime.tv_sec != time_second) {	\
329 				nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
330 				*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
331 				txdr_nfsv3time(&(a)->va_mtime, tl);	\
332 			} else {					\
333 				nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
334 				*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
335 			}						\
336 		} else {						\
337 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
338 			*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);	\
339 		}							\
340 	} while (0)
341 
342 
343 #define	nfsm_strsiz(s,m) \
344 	do { \
345 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
346 		if (((s) = fxdr_unsigned(int32_t,*tl)) > (m)) { \
347 			m_freem(mrep); \
348 			error = EBADRPC; \
349 			goto nfsmout; \
350 		} \
351 	} while (0)
352 
353 #define	nfsm_srvstrsiz(s,m) \
354 	do { \
355 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
356 		if (((s) = fxdr_unsigned(int32_t,*tl)) > (m) || (s) <= 0) { \
357 			error = EBADRPC; \
358 			nfsm_reply(0); \
359 		} \
360 	} while (0)
361 
362 #define	nfsm_srvnamesiz(s) \
363 	do { \
364 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
365 		if (((s) = fxdr_unsigned(int32_t,*tl)) > NFS_MAXNAMLEN) \
366 			error = NFSERR_NAMETOL; \
367 		if ((s) <= 0) \
368 			error = EBADRPC; \
369 		if (error) \
370 			nfsm_reply(0); \
371 	} while (0)
372 
373 #define nfsm_mtouio(p,s) \
374 	do {\
375 		if ((s) > 0 && \
376 		   (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \
377 			error = t1; \
378 			m_freem(mrep); \
379 			goto nfsmout; \
380 		} \
381 	} while (0)
382 
383 #define nfsm_uiotom(p,s) \
384 	do { \
385 		if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \
386 			error = t1; \
387 			m_freem(mreq); \
388 			goto nfsmout; \
389 		} \
390 	} while (0)
391 
392 #define	nfsm_reqhead(v,a,s) \
393 	do { \
394 		mb = mreq = nfsm_reqh((v),(a),(s),&bpos); \
395 	} while (0)
396 
397 #define nfsm_rndup(a)	(((a)+3)&(~0x3))
398 
399 #define	nfsm_request(v, t, td, c) \
400 	do { \
401 		if ((error = nfs_request((v), mreq, (t), (td), \
402 		   (c), &mrep, &md, &dpos)) != 0) { \
403 			if (error & NFSERR_RETERR) \
404 				error &= ~NFSERR_RETERR; \
405 			else \
406 				goto nfsmout; \
407 		} \
408 	} while (0)
409 
410 #define	nfsm_strtom(a,s,m) \
411 	do {\
412 		if ((s) > (m)) { \
413 			m_freem(mreq); \
414 			error = ENAMETOOLONG; \
415 			goto nfsmout; \
416 		} \
417 		t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
418 		if (t2 <= M_TRAILINGSPACE(mb)) { \
419 			nfsm_build(tl,u_int32_t *,t2); \
420 			*tl++ = txdr_unsigned(s); \
421 			*(tl+((t2>>2)-2)) = 0; \
422 			bcopy((const char *)(a), (caddr_t)tl, (s)); \
423 		} else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \
424 			error = t2; \
425 			m_freem(mreq); \
426 			goto nfsmout; \
427 		} \
428 	} while (0)
429 
430 #define	nfsm_srvdone \
431 	do { \
432 		nfsmout: \
433 		return (error); \
434 	} while (0)
435 
436 #define	nfsm_reply(s) \
437 	do { \
438 		nfsd->nd_repstat = error; \
439 		if (error && !(nfsd->nd_flag & ND_NFSV3)) \
440 		   (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
441 			mrq, &mb, &bpos); \
442 		else \
443 		   (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
444 			mrq, &mb, &bpos); \
445 		if (mrep != NULL) { \
446 			m_freem(mrep); \
447 			mrep = NULL; \
448 		} \
449 		mreq = *mrq; \
450 		if (error && (!(nfsd->nd_flag & ND_NFSV3) || \
451 			error == EBADRPC)) { \
452 			error = 0; \
453 			goto nfsmout; \
454 		} \
455 	} while (0)
456 
457 #define	nfsm_writereply(s, v3) \
458 	do { \
459 		nfsd->nd_repstat = error; \
460 		if (error && !(v3)) \
461 		   (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
462 			&mreq, &mb, &bpos); \
463 		else \
464 		   (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
465 			&mreq, &mb, &bpos); \
466 	} while (0)
467 
468 #define	nfsm_adv(s) \
469 	do { \
470 		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
471 		if (t1 >= (s)) { \
472 			dpos += (s); \
473 		} else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \
474 			error = t1; \
475 			m_freem(mrep); \
476 			goto nfsmout; \
477 		} \
478 	} while (0)
479 
480 #define nfsm_srvmtofh(f) \
481 	do { \
482 		int fhlen; \
483 		if (nfsd->nd_flag & ND_NFSV3) { \
484 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
485 			fhlen = fxdr_unsigned(int, *tl); \
486 			if (fhlen != 0 && fhlen != NFSX_V3FH) { \
487 				error = EBADRPC; \
488 				nfsm_reply(0); \
489 			} \
490 		} else { \
491 			fhlen = NFSX_V2FH; \
492 		} \
493 		if (fhlen != 0) { \
494 			nfsm_dissect(tl, u_int32_t *, fhlen); \
495 			bcopy((caddr_t)tl, (caddr_t)(f), fhlen); \
496 		} else {\
497 			bzero((caddr_t)(f), NFSX_V3FH); \
498 		} \
499 	} while (0)
500 
501 #define	nfsm_clget \
502 	do { \
503 		if (bp >= be) { \
504 			if (mp == mb) \
505 				mp->m_len += bp-bpos; \
506 			mp = m_getcl(MB_WAIT, MT_DATA, 0); \
507 			mp->m_len = MCLBYTES; \
508 			mp2->m_next = mp; \
509 			mp2 = mp; \
510 			bp = mtod(mp, caddr_t); \
511 			be = bp+mp->m_len; \
512 		} \
513 		tl = (u_int32_t *)bp; \
514 	} while (0)
515 
516 #define	nfsm_srvfillattr(a, f) \
517 	do { \
518 		nfsm_srvfattr(nfsd, (a), (f)); \
519 	} while (0)
520 
521 #define nfsm_srvwcc_data(br, b, ar, a) \
522 	do { \
523 		nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos); \
524 	} while (0)
525 
526 #define nfsm_srvpostop_attr(r, a) \
527 	do { \
528 		nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos); \
529 	} while (0)
530 
531 #define nfsm_srvsattr(a) \
532 	do { \
533 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
534 		if (*tl == nfs_true) { \
535 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
536 			(a)->va_mode = nfstov_mode(*tl); \
537 		} \
538 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
539 		if (*tl == nfs_true) { \
540 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
541 			(a)->va_uid = fxdr_unsigned(uid_t, *tl); \
542 		} \
543 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
544 		if (*tl == nfs_true) { \
545 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
546 			(a)->va_gid = fxdr_unsigned(gid_t, *tl); \
547 		} \
548 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
549 		if (*tl == nfs_true) { \
550 			nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
551 			(a)->va_size = fxdr_hyper(tl); \
552 		} \
553 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
554 		switch (fxdr_unsigned(int, *tl)) { \
555 		case NFSV3SATTRTIME_TOCLIENT: \
556 			nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
557 			fxdr_nfsv3time(tl, &(a)->va_atime); \
558 			break; \
559 		case NFSV3SATTRTIME_TOSERVER: \
560 			getnanotime(&(a)->va_atime); \
561 			break; \
562 		}; \
563 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
564 		switch (fxdr_unsigned(int, *tl)) { \
565 		case NFSV3SATTRTIME_TOCLIENT: \
566 			nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
567 			fxdr_nfsv3time(tl, &(a)->va_mtime); \
568 			break; \
569 		case NFSV3SATTRTIME_TOSERVER: \
570 			getnanotime(&(a)->va_mtime); \
571 			break; \
572 		} \
573 	} while (0)
574 
575 #endif
576