xref: /dragonfly/sys/vfs/nfs/nfsm_subs.h (revision 9c600e7d)
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 1.3 2003/07/01 18:48:31 dillon 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 __P((struct vnode *vp, u_long procid, int hsiz,
58 			    caddr_t *bposp));
59 struct mbuf *nfsm_rpchead __P((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, M_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) \
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, 1)) != 0) { \
231 				error = t1; \
232 				(f) = 0; \
233 				m_freem(mrep); \
234 				goto nfsmout; \
235 			} \
236 			(v) = ttvp; \
237 		} \
238 	} while (0)
239 
240 /* Used as (f) for nfsm_wcc_data() */
241 #define NFSV3_WCCRATTR	0
242 #define NFSV3_WCCCHK	1
243 
244 #define	nfsm_wcc_data(v, f) \
245 	do { \
246 		int ttattrf, ttretf = 0; \
247 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
248 		if (*tl == nfs_true) { \
249 			nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \
250 			if (f) \
251 				ttretf = (VTONFS(v)->n_mtime == \
252 					fxdr_unsigned(u_int32_t, *(tl + 2))); \
253 		} \
254 		nfsm_postop_attr((v), ttattrf); \
255 		if (f) { \
256 			(f) = ttretf; \
257 		} else { \
258 			(f) = ttattrf; \
259 		} \
260 	} while (0)
261 
262 /* If full is true, set all fields, otherwise just set mode and time fields */
263 #define nfsm_v3attrbuild(a, full) \
264 	do { \
265 		if ((a)->va_mode != (mode_t)VNOVAL) {			\
266 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
267 			*tl++ = nfs_true;				\
268 			*tl = txdr_unsigned((a)->va_mode);		\
269 		} else {						\
270 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
271 			*tl = nfs_false;				\
272 		}							\
273 		if ((full) && (a)->va_uid != (uid_t)VNOVAL) {		\
274 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
275 			*tl++ = nfs_true;				\
276 			*tl = txdr_unsigned((a)->va_uid);		\
277 		} else {						\
278 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
279 			*tl = nfs_false;				\
280 		}							\
281 		if ((full) && (a)->va_gid != (gid_t)VNOVAL) {		\
282 			nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED);	\
283 			*tl++ = nfs_true;				\
284 			*tl = txdr_unsigned((a)->va_gid);		\
285 		} else {						\
286 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
287 			*tl = nfs_false;				\
288 		}							\
289 		if ((full) && (a)->va_size != VNOVAL) {			\
290 			nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);	\
291 			*tl++ = nfs_true;				\
292 			txdr_hyper((a)->va_size, tl);			\
293 		} else {						\
294 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
295 			*tl = nfs_false;				\
296 		}							\
297 		if ((a)->va_atime.tv_sec != VNOVAL) {			\
298 			if ((a)->va_atime.tv_sec != time_second) {	\
299 				nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
300 				*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
301 				txdr_nfsv3time(&(a)->va_atime, tl);	\
302 			} else {					\
303 				nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
304 				*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
305 			}						\
306 		} else {						\
307 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
308 			*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);	\
309 		}							\
310 		if ((a)->va_mtime.tv_sec != VNOVAL) {			\
311 			if ((a)->va_mtime.tv_sec != time_second) {	\
312 				nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
313 				*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
314 				txdr_nfsv3time(&(a)->va_mtime, tl);	\
315 			} else {					\
316 				nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
317 				*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
318 			}						\
319 		} else {						\
320 			nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);	\
321 			*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);	\
322 		}							\
323 	} while (0)
324 
325 
326 #define	nfsm_strsiz(s,m) \
327 	do { \
328 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
329 		if (((s) = fxdr_unsigned(int32_t,*tl)) > (m)) { \
330 			m_freem(mrep); \
331 			error = EBADRPC; \
332 			goto nfsmout; \
333 		} \
334 	} while (0)
335 
336 #define	nfsm_srvstrsiz(s,m) \
337 	do { \
338 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
339 		if (((s) = fxdr_unsigned(int32_t,*tl)) > (m) || (s) <= 0) { \
340 			error = EBADRPC; \
341 			nfsm_reply(0); \
342 		} \
343 	} while (0)
344 
345 #define	nfsm_srvnamesiz(s) \
346 	do { \
347 		nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
348 		if (((s) = fxdr_unsigned(int32_t,*tl)) > NFS_MAXNAMLEN) \
349 			error = NFSERR_NAMETOL; \
350 		if ((s) <= 0) \
351 			error = EBADRPC; \
352 		if (error) \
353 			nfsm_reply(0); \
354 	} while (0)
355 
356 #define nfsm_mtouio(p,s) \
357 	do {\
358 		if ((s) > 0 && \
359 		   (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \
360 			error = t1; \
361 			m_freem(mrep); \
362 			goto nfsmout; \
363 		} \
364 	} while (0)
365 
366 #define nfsm_uiotom(p,s) \
367 	do { \
368 		if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \
369 			error = t1; \
370 			m_freem(mreq); \
371 			goto nfsmout; \
372 		} \
373 	} while (0)
374 
375 #define	nfsm_reqhead(v,a,s) \
376 	do { \
377 		mb = mreq = nfsm_reqh((v),(a),(s),&bpos); \
378 	} while (0)
379 
380 #define nfsm_reqdone \
381 	do { \
382 		m_freem(mrep); \
383 		nfsmout: \
384 	} while (0)
385 
386 #define nfsm_rndup(a)	(((a)+3)&(~0x3))
387 
388 #define	nfsm_request(v, t, td, c) \
389 	do { \
390 		if ((error = nfs_request((v), mreq, (t), (td), \
391 		   (c), &mrep, &md, &dpos)) != 0) { \
392 			if (error & NFSERR_RETERR) \
393 				error &= ~NFSERR_RETERR; \
394 			else \
395 				goto nfsmout; \
396 		} \
397 	} while (0)
398 
399 #define	nfsm_strtom(a,s,m) \
400 	do {\
401 		if ((s) > (m)) { \
402 			m_freem(mreq); \
403 			error = ENAMETOOLONG; \
404 			goto nfsmout; \
405 		} \
406 		t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
407 		if (t2 <= M_TRAILINGSPACE(mb)) { \
408 			nfsm_build(tl,u_int32_t *,t2); \
409 			*tl++ = txdr_unsigned(s); \
410 			*(tl+((t2>>2)-2)) = 0; \
411 			bcopy((const char *)(a), (caddr_t)tl, (s)); \
412 		} else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \
413 			error = t2; \
414 			m_freem(mreq); \
415 			goto nfsmout; \
416 		} \
417 	} while (0)
418 
419 #define	nfsm_srvdone \
420 	do { \
421 		nfsmout: \
422 		return (error); \
423 	} while (0)
424 
425 #define	nfsm_reply(s) \
426 	do { \
427 		nfsd->nd_repstat = error; \
428 		if (error && !(nfsd->nd_flag & ND_NFSV3)) \
429 		   (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
430 			mrq, &mb, &bpos); \
431 		else \
432 		   (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
433 			mrq, &mb, &bpos); \
434 		if (mrep != NULL) { \
435 			m_freem(mrep); \
436 			mrep = NULL; \
437 		} \
438 		mreq = *mrq; \
439 		if (error && (!(nfsd->nd_flag & ND_NFSV3) || \
440 			error == EBADRPC)) { \
441 			error = 0; \
442 			goto nfsmout; \
443 		} \
444 	} while (0)
445 
446 #define	nfsm_writereply(s, v3) \
447 	do { \
448 		nfsd->nd_repstat = error; \
449 		if (error && !(v3)) \
450 		   (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
451 			&mreq, &mb, &bpos); \
452 		else \
453 		   (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
454 			&mreq, &mb, &bpos); \
455 	} while (0)
456 
457 #define	nfsm_adv(s) \
458 	do { \
459 		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
460 		if (t1 >= (s)) { \
461 			dpos += (s); \
462 		} else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \
463 			error = t1; \
464 			m_freem(mrep); \
465 			goto nfsmout; \
466 		} \
467 	} while (0)
468 
469 #define nfsm_srvmtofh(f) \
470 	do { \
471 		int fhlen; \
472 		if (nfsd->nd_flag & ND_NFSV3) { \
473 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
474 			fhlen = fxdr_unsigned(int, *tl); \
475 			if (fhlen != 0 && fhlen != NFSX_V3FH) { \
476 				error = EBADRPC; \
477 				nfsm_reply(0); \
478 			} \
479 		} else { \
480 			fhlen = NFSX_V2FH; \
481 		} \
482 		if (fhlen != 0) { \
483 			nfsm_dissect(tl, u_int32_t *, fhlen); \
484 			bcopy((caddr_t)tl, (caddr_t)(f), fhlen); \
485 		} else {\
486 			bzero((caddr_t)(f), NFSX_V3FH); \
487 		} \
488 	} while (0)
489 
490 #define	nfsm_clget \
491 	do { \
492 		if (bp >= be) { \
493 			if (mp == mb) \
494 				mp->m_len += bp-bpos; \
495 			MGET(mp, M_WAIT, MT_DATA); \
496 			MCLGET(mp, M_WAIT); \
497 			mp->m_len = NFSMSIZ(mp); \
498 			mp2->m_next = mp; \
499 			mp2 = mp; \
500 			bp = mtod(mp, caddr_t); \
501 			be = bp+mp->m_len; \
502 		} \
503 		tl = (u_int32_t *)bp; \
504 	} while (0)
505 
506 #define	nfsm_srvfillattr(a, f) \
507 	do { \
508 		nfsm_srvfattr(nfsd, (a), (f)); \
509 	} while (0)
510 
511 #define nfsm_srvwcc_data(br, b, ar, a) \
512 	do { \
513 		nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos); \
514 	} while (0)
515 
516 #define nfsm_srvpostop_attr(r, a) \
517 	do { \
518 		nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos); \
519 	} while (0)
520 
521 #define nfsm_srvsattr(a) \
522 	do { \
523 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
524 		if (*tl == nfs_true) { \
525 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
526 			(a)->va_mode = nfstov_mode(*tl); \
527 		} \
528 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
529 		if (*tl == nfs_true) { \
530 			nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
531 			(a)->va_uid = fxdr_unsigned(uid_t, *tl); \
532 		} \
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_gid = fxdr_unsigned(gid_t, *tl); \
537 		} \
538 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
539 		if (*tl == nfs_true) { \
540 			nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
541 			(a)->va_size = fxdr_hyper(tl); \
542 		} \
543 		nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
544 		switch (fxdr_unsigned(int, *tl)) { \
545 		case NFSV3SATTRTIME_TOCLIENT: \
546 			nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
547 			fxdr_nfsv3time(tl, &(a)->va_atime); \
548 			break; \
549 		case NFSV3SATTRTIME_TOSERVER: \
550 			getnanotime(&(a)->va_atime); \
551 			break; \
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_mtime); \
558 			break; \
559 		case NFSV3SATTRTIME_TOSERVER: \
560 			getnanotime(&(a)->va_mtime); \
561 			break; \
562 		} \
563 	} while (0)
564 
565 #endif
566