1 | /* $NetBSD: nfsm_subs.h,v 1.53 2013/09/14 22:29:08 martin Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1989, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to Berkeley by |
8 | * Rick Macklem at The University of Guelph. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. Neither the name of the University nor the names of its contributors |
19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. |
21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * SUCH DAMAGE. |
33 | * |
34 | * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95 |
35 | */ |
36 | |
37 | |
38 | #ifndef _NFS_NFSM_SUBS_H_ |
39 | #define _NFS_NFSM_SUBS_H_ |
40 | |
41 | |
42 | /* |
43 | * These macros do strange and peculiar things to mbuf chains for |
44 | * the assistance of the nfs code. To attempt to use them for any |
45 | * other purpose will be dangerous. (they make weird assumptions) |
46 | */ |
47 | |
48 | /* |
49 | * First define what the actual subs. return |
50 | */ |
51 | |
52 | #define M_HASCL(m) ((m)->m_flags & M_EXT) |
53 | #define NFSMADV(m, s) (m)->m_data += (s) |
54 | #define NFSMSIZ(m) ((M_HASCL(m)) ? (m)->m_ext.ext_size : \ |
55 | (((m)->m_flags & M_PKTHDR) ? MHLEN : MLEN)) |
56 | |
57 | /* |
58 | * Now for the macros that do the simple stuff and call the functions |
59 | * for the hard stuff. |
60 | * These macros use several vars. declared in nfsm_reqhead and these |
61 | * vars. must not be used elsewhere unless you are careful not to corrupt |
62 | * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries |
63 | * that may be used so long as the value is not expected to retained |
64 | * after a macro. |
65 | * I know, this is kind of dorkey, but it makes the actual op functions |
66 | * fairly clean and deals with the mess caused by the xdr discriminating |
67 | * unions. |
68 | */ |
69 | |
70 | #define nfsm_build(a,c,s) \ |
71 | { if ((s) > M_TRAILINGSPACE(mb)) { \ |
72 | struct mbuf *mb2; \ |
73 | mb2 = m_get(M_WAIT, MT_DATA); \ |
74 | MCLAIM(mb2, &nfs_mowner); \ |
75 | if ((s) > MLEN) \ |
76 | panic("build > MLEN"); \ |
77 | mb->m_next = mb2; \ |
78 | mb = mb2; \ |
79 | mb->m_len = 0; \ |
80 | bpos = mtod(mb, char *); \ |
81 | } \ |
82 | (a) = (c)(bpos); \ |
83 | mb->m_len += (s); \ |
84 | bpos += (s); } |
85 | |
86 | #define nfsm_aligned(p) ALIGNED_POINTER(p,u_int32_t) |
87 | |
88 | #define nfsm_dissect(a, c, s) \ |
89 | { t1 = mtod(md, char *) + md->m_len-dpos; \ |
90 | if (t1 >= (s) && nfsm_aligned(dpos)) { \ |
91 | (a) = (c)(dpos); \ |
92 | dpos += (s); \ |
93 | } else if ((t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \ |
94 | error = t1; \ |
95 | m_freem(mrep); \ |
96 | goto nfsmout; \ |
97 | } else { \ |
98 | (a) = (c)cp2; \ |
99 | } } |
100 | |
101 | #define nfsm_fhtom(n, v3) \ |
102 | { if (v3) { \ |
103 | t2 = nfsm_rndup((n)->n_fhsize) + NFSX_UNSIGNED; \ |
104 | if (t2 <= M_TRAILINGSPACE(mb)) { \ |
105 | nfsm_build(tl, u_int32_t *, t2); \ |
106 | *tl++ = txdr_unsigned((n)->n_fhsize); \ |
107 | *(tl + ((t2>>2) - 2)) = 0; \ |
108 | memcpy(tl,(n)->n_fhp, (n)->n_fhsize); \ |
109 | } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, \ |
110 | (void *)(n)->n_fhp, (n)->n_fhsize)) != 0) { \ |
111 | error = t2; \ |
112 | m_freem(mreq); \ |
113 | goto nfsmout; \ |
114 | } \ |
115 | } else { \ |
116 | nfsm_build(cp, void *, NFSX_V2FH); \ |
117 | memcpy(cp, (n)->n_fhp, NFSX_V2FH); \ |
118 | } } |
119 | |
120 | #define nfsm_srvfhtom(f, v3) \ |
121 | { if (v3) { \ |
122 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + \ |
123 | NFSRVFH_SIZE(f)); \ |
124 | *tl++ = txdr_unsigned(NFSRVFH_SIZE(f)); \ |
125 | memcpy(tl, NFSRVFH_DATA(f), NFSRVFH_SIZE(f)); \ |
126 | } else { \ |
127 | KASSERT(NFSRVFH_SIZE(f) == NFSX_V2FH); \ |
128 | nfsm_build(cp, void *, NFSX_V2FH); \ |
129 | memcpy(cp, NFSRVFH_DATA(f), NFSX_V2FH); \ |
130 | } } |
131 | |
132 | #define nfsm_srvpostop_fh(f) \ |
133 | { nfsm_build(tl, u_int32_t *, \ |
134 | 2 * NFSX_UNSIGNED + NFSRVFH_SIZE(f)); \ |
135 | *tl++ = nfs_true; \ |
136 | *tl++ = txdr_unsigned(NFSRVFH_SIZE(f)); \ |
137 | memcpy(tl, NFSRVFH_DATA(f), NFSRVFH_SIZE(f)); \ |
138 | } |
139 | |
140 | /* |
141 | * nfsm_mtofh: dissect a "resulted obj" part of create-like operations |
142 | * like mkdir. |
143 | * |
144 | * for nfsv3, dissect post_op_fh3 and following post_op_attr. |
145 | * for nfsv2, dissect fhandle and following fattr. |
146 | * |
147 | * d: (IN) the vnode of the parent directry. |
148 | * v: (OUT) the corresponding vnode (we allocate one if needed) |
149 | * v3: (IN) true for nfsv3. |
150 | * f: (OUT) true if we got valid filehandle. always true for nfsv2. |
151 | */ |
152 | |
153 | #define nfsm_mtofh(d, v, v3, f) \ |
154 | { struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \ |
155 | int hasattr = 0; \ |
156 | if (v3) { \ |
157 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
158 | (f) = fxdr_unsigned(int, *tl); \ |
159 | } else { \ |
160 | (f) = 1; \ |
161 | hasattr = 1; \ |
162 | } \ |
163 | if (f) { \ |
164 | nfsm_getfh(ttfhp, ttfhsize, (v3)); \ |
165 | if ((t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \ |
166 | &ttnp)) != 0) { \ |
167 | error = t1; \ |
168 | m_freem(mrep); \ |
169 | goto nfsmout; \ |
170 | } \ |
171 | (v) = NFSTOV(ttnp); \ |
172 | } \ |
173 | if (v3) { \ |
174 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
175 | if (f) \ |
176 | hasattr = fxdr_unsigned(int, *tl); \ |
177 | else if (fxdr_unsigned(int, *tl)) \ |
178 | nfsm_adv(NFSX_V3FATTR); \ |
179 | } \ |
180 | if (f && hasattr) \ |
181 | nfsm_loadattr((v), (struct vattr *)0, 0); \ |
182 | } |
183 | |
184 | /* |
185 | * nfsm_getfh: dissect a filehandle. |
186 | * |
187 | * f: (OUT) a filehandle. |
188 | * s: (OUT) size of the filehandle in bytes. |
189 | * v3: (IN) true if nfsv3. |
190 | */ |
191 | |
192 | #define nfsm_getfh(f, s, v3) \ |
193 | { if (v3) { \ |
194 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
195 | if (((s) = fxdr_unsigned(int, *tl)) <= 0 || \ |
196 | (s) > NFSX_V3FHMAX) { \ |
197 | m_freem(mrep); \ |
198 | error = EBADRPC; \ |
199 | goto nfsmout; \ |
200 | } \ |
201 | } else \ |
202 | (s) = NFSX_V2FH; \ |
203 | nfsm_dissect((f), nfsfh_t *, nfsm_rndup(s)); } |
204 | |
205 | #define nfsm_loadattr(v, a, flags) \ |
206 | { struct vnode *ttvp = (v); \ |
207 | if ((t1 = nfsm_loadattrcache(&ttvp, &md, &dpos, (a), (flags))) \ |
208 | != 0) { \ |
209 | error = t1; \ |
210 | m_freem(mrep); \ |
211 | goto nfsmout; \ |
212 | } \ |
213 | (v) = ttvp; } |
214 | |
215 | /* |
216 | * nfsm_postop_attr: process nfsv3 post_op_attr |
217 | * |
218 | * dissect post_op_attr. if we got a one, |
219 | * call nfsm_loadattrcache to update attribute cache. |
220 | * |
221 | * v: (IN/OUT) the corresponding vnode |
222 | * f: (OUT) true if we got valid attribute |
223 | * flags: (IN) flags for nfsm_loadattrcache |
224 | */ |
225 | |
226 | #define nfsm_postop_attr(v, f, flags) \ |
227 | { struct vnode *ttvp = (v); \ |
228 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
229 | if (((f) = fxdr_unsigned(int, *tl)) != 0) { \ |
230 | if ((t1 = nfsm_loadattrcache(&ttvp, &md, &dpos, \ |
231 | (struct vattr *)0, (flags))) != 0) { \ |
232 | error = t1; \ |
233 | (f) = 0; \ |
234 | m_freem(mrep); \ |
235 | goto nfsmout; \ |
236 | } \ |
237 | (v) = ttvp; \ |
238 | } } |
239 | |
240 | /* |
241 | * nfsm_wcc_data: process nfsv3 wcc_data |
242 | * |
243 | * dissect pre_op_attr and then let nfsm_postop_attr dissect post_op_attr. |
244 | * |
245 | * v: (IN/OUT) the corresponding vnode |
246 | * f: (IN/OUT) |
247 | * NFSV3_WCCRATTR return true if we got valid post_op_attr. |
248 | * NFSV3_WCCCHK return true if pre_op_attr's mtime is the same |
249 | * as our n_mtime. (ie. our cache isn't stale.) |
250 | * flags: (IN) flags for nfsm_loadattrcache |
251 | * docheck: (IN) true if timestamp change is expected |
252 | */ |
253 | |
254 | /* Used as (f) for nfsm_wcc_data() */ |
255 | #define NFSV3_WCCRATTR 0 |
256 | #define NFSV3_WCCCHK 1 |
257 | |
258 | #define nfsm_wcc_data(v, f, flags, docheck) \ |
259 | { int ttattrf, ttretf = 0, renewctime = 0, renewnctime = 0; \ |
260 | struct timespec ctime, mtime; \ |
261 | struct nfsnode *nfsp = VTONFS(v); \ |
262 | bool haspreopattr = false; \ |
263 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
264 | if (*tl == nfs_true) { \ |
265 | haspreopattr = true; \ |
266 | nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \ |
267 | fxdr_nfsv3time(tl + 2, &mtime); \ |
268 | fxdr_nfsv3time(tl + 4, &ctime); \ |
269 | if (nfsp->n_ctime == ctime.tv_sec) \ |
270 | renewctime = 1; \ |
271 | if ((v)->v_type == VDIR) { \ |
272 | if (timespeccmp(&nfsp->n_nctime, &ctime, ==)) \ |
273 | renewnctime = 1; \ |
274 | } \ |
275 | if (f) { \ |
276 | ttretf = timespeccmp(&nfsp->n_mtime, &mtime, ==);\ |
277 | } \ |
278 | } \ |
279 | nfsm_postop_attr((v), ttattrf, (flags)); \ |
280 | nfsp = VTONFS(v); \ |
281 | if (ttattrf) { \ |
282 | if (haspreopattr && \ |
283 | nfs_check_wccdata(nfsp, &ctime, &mtime, (docheck))) \ |
284 | renewctime = renewnctime = ttretf = 0; \ |
285 | if (renewctime) \ |
286 | nfsp->n_ctime = nfsp->n_vattr->va_ctime.tv_sec; \ |
287 | if (renewnctime) \ |
288 | nfsp->n_nctime = nfsp->n_vattr->va_ctime; \ |
289 | } \ |
290 | if (f) { \ |
291 | (f) = ttretf; \ |
292 | } else { \ |
293 | (f) = ttattrf; \ |
294 | } } |
295 | |
296 | /* If full is true, set all fields, otherwise just set mode and time fields */ |
297 | #define nfsm_v3attrbuild(a, full) \ |
298 | { if ((a)->va_mode != (mode_t)VNOVAL) { \ |
299 | nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
300 | *tl++ = nfs_true; \ |
301 | *tl = txdr_unsigned((a)->va_mode); \ |
302 | } else { \ |
303 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
304 | *tl = nfs_false; \ |
305 | } \ |
306 | if ((full) && (a)->va_uid != (uid_t)VNOVAL) { \ |
307 | nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
308 | *tl++ = nfs_true; \ |
309 | *tl = txdr_unsigned((a)->va_uid); \ |
310 | } else { \ |
311 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
312 | *tl = nfs_false; \ |
313 | } \ |
314 | if ((full) && (a)->va_gid != (gid_t)VNOVAL) { \ |
315 | nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
316 | *tl++ = nfs_true; \ |
317 | *tl = txdr_unsigned((a)->va_gid); \ |
318 | } else { \ |
319 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
320 | *tl = nfs_false; \ |
321 | } \ |
322 | if ((full) && (a)->va_size != VNOVAL) { \ |
323 | nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ |
324 | *tl++ = nfs_true; \ |
325 | txdr_hyper((a)->va_size, tl); \ |
326 | } else { \ |
327 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
328 | *tl = nfs_false; \ |
329 | } \ |
330 | if ((a)->va_atime.tv_sec != VNOVAL) { \ |
331 | if ((a)->va_atime.tv_sec != time_second) { \ |
332 | nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ |
333 | *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ |
334 | txdr_nfsv3time(&(a)->va_atime, tl); \ |
335 | } else { \ |
336 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
337 | *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \ |
338 | } \ |
339 | } else { \ |
340 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
341 | *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \ |
342 | } \ |
343 | if ((a)->va_mtime.tv_sec != VNOVAL) { \ |
344 | if ((a)->va_mtime.tv_sec != time_second) { \ |
345 | nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ |
346 | *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ |
347 | txdr_nfsv3time(&(a)->va_mtime, tl); \ |
348 | } else { \ |
349 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
350 | *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \ |
351 | } \ |
352 | } else { \ |
353 | nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ |
354 | *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \ |
355 | } \ |
356 | } |
357 | |
358 | |
359 | #define nfsm_strsiz(s,m) \ |
360 | { nfsm_dissect(tl,uint32_t *,NFSX_UNSIGNED); \ |
361 | if (((s) = fxdr_unsigned(uint32_t,*tl)) > (m)) { \ |
362 | m_freem(mrep); \ |
363 | error = EBADRPC; \ |
364 | goto nfsmout; \ |
365 | } } |
366 | |
367 | #define nfsm_srvnamesiz(s) \ |
368 | { nfsm_dissect(tl,uint32_t *,NFSX_UNSIGNED); \ |
369 | if (((s) = fxdr_unsigned(uint32_t,*tl)) > NFS_MAXNAMLEN) \ |
370 | error = NFSERR_NAMETOL; \ |
371 | if (error) \ |
372 | nfsm_reply(0); \ |
373 | } |
374 | |
375 | #define nfsm_mtouio(p,s) \ |
376 | if ((s) > 0 && \ |
377 | (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \ |
378 | error = t1; \ |
379 | m_freem(mrep); \ |
380 | goto nfsmout; \ |
381 | } |
382 | |
383 | #define nfsm_uiotom(p,s) \ |
384 | if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \ |
385 | error = t1; \ |
386 | m_freem(mreq); \ |
387 | goto nfsmout; \ |
388 | } |
389 | |
390 | #define nfsm_reqhead(n,a,s) \ |
391 | mb = mreq = nfsm_reqh((n),(a),(s),&bpos) |
392 | |
393 | #define nfsm_reqdone m_freem(mrep); \ |
394 | nfsmout: |
395 | |
396 | #define nfsm_rndup(a) (((a)+3)&(~0x3)) |
397 | #define nfsm_padlen(a) (nfsm_rndup(a) - (a)) |
398 | |
399 | #define nfsm_request1(v, t, p, c, rexmitp) \ |
400 | if ((error = nfs_request((v), mreq, (t), (p), \ |
401 | (c), &mrep, &md, &dpos, (rexmitp))) != 0) { \ |
402 | if (error & NFSERR_RETERR) \ |
403 | error &= ~NFSERR_RETERR; \ |
404 | else \ |
405 | goto nfsmout; \ |
406 | } |
407 | |
408 | #define nfsm_request(v, t, p, c) nfsm_request1((v), (t), (p), (c), NULL) |
409 | |
410 | #define nfsm_strtom(a,s,m) \ |
411 | if ((s) > (m)) { \ |
412 | m_freem(mreq); \ |
413 | error = ENAMETOOLONG; \ |
414 | goto nfsmout; \ |
415 | } \ |
416 | t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \ |
417 | if (t2 <= M_TRAILINGSPACE(mb)) { \ |
418 | nfsm_build(tl,u_int32_t *,t2); \ |
419 | *tl++ = txdr_unsigned(s); \ |
420 | *(tl+((t2>>2)-2)) = 0; \ |
421 | memcpy(tl, (const char *)(a), (s)); \ |
422 | } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \ |
423 | error = t2; \ |
424 | m_freem(mreq); \ |
425 | goto nfsmout; \ |
426 | } |
427 | |
428 | #define nfsm_srvdone \ |
429 | nfsmout: \ |
430 | return(error) |
431 | |
432 | #define nfsm_reply(s) \ |
433 | { \ |
434 | nfsd->nd_repstat = error; \ |
435 | if (error && !(nfsd->nd_flag & ND_NFSV3)) \ |
436 | (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ |
437 | mrq, &mb, &bpos); \ |
438 | else \ |
439 | (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ |
440 | mrq, &mb, &bpos); \ |
441 | if (mrep != NULL) { \ |
442 | m_freem(mrep); \ |
443 | mrep = NULL; \ |
444 | } \ |
445 | mreq = *mrq; \ |
446 | if (error && (!(nfsd->nd_flag & ND_NFSV3) || \ |
447 | error == EBADRPC)) {\ |
448 | error = 0; \ |
449 | goto nfsmout; \ |
450 | } \ |
451 | } |
452 | |
453 | #define nfsm_writereply(s, v3) \ |
454 | { \ |
455 | nfsd->nd_repstat = error; \ |
456 | if (error && !(v3)) \ |
457 | (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ |
458 | &mreq, &mb, &bpos); \ |
459 | else \ |
460 | (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ |
461 | &mreq, &mb, &bpos); \ |
462 | } |
463 | |
464 | #define nfsm_adv(s) \ |
465 | { t1 = mtod(md, char *) + md->m_len - dpos; \ |
466 | if (t1 >= (s)) { \ |
467 | dpos += (s); \ |
468 | } else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \ |
469 | error = t1; \ |
470 | m_freem(mrep); \ |
471 | goto nfsmout; \ |
472 | } } |
473 | |
474 | #define nfsm_srvmtofh(nsfh) \ |
475 | { int fhlen = NFSX_V3FH; \ |
476 | if (nfsd->nd_flag & ND_NFSV3) { \ |
477 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
478 | fhlen = fxdr_unsigned(int, *tl); \ |
479 | if (fhlen > NFSX_V3FHMAX || \ |
480 | (fhlen < FHANDLE_SIZE_MIN && fhlen > 0)) { \ |
481 | error = EBADRPC; \ |
482 | nfsm_reply(0); \ |
483 | } \ |
484 | } else { \ |
485 | fhlen = NFSX_V2FH; \ |
486 | } \ |
487 | (nsfh)->nsfh_size = fhlen; \ |
488 | if (fhlen != 0) { \ |
489 | nfsm_dissect(tl, u_int32_t *, fhlen); \ |
490 | memcpy(NFSRVFH_DATA(nsfh), tl, fhlen); \ |
491 | } \ |
492 | } |
493 | |
494 | #define nfsm_clget \ |
495 | if (bp >= be) { \ |
496 | if (mp == mb) \ |
497 | mp->m_len += bp-bpos; \ |
498 | mp = m_get(M_WAIT, MT_DATA); \ |
499 | MCLAIM(mp, &nfs_mowner); \ |
500 | m_clget(mp, M_WAIT); \ |
501 | mp->m_len = NFSMSIZ(mp); \ |
502 | mp2->m_next = mp; \ |
503 | mp2 = mp; \ |
504 | bp = mtod(mp, char *); \ |
505 | be = bp+mp->m_len; \ |
506 | } \ |
507 | tl = (u_int32_t *)bp |
508 | |
509 | #define nfsm_srvfillattr(a, f) \ |
510 | nfsm_srvfattr(nfsd, (a), (f)) |
511 | |
512 | #define nfsm_srvwcc_data(br, b, ar, a) \ |
513 | nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos) |
514 | |
515 | #define nfsm_srvpostop_attr(r, a) \ |
516 | nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos) |
517 | |
518 | #define nfsm_srvsattr(a) \ |
519 | { \ |
520 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
521 | if (*tl == nfs_true) { \ |
522 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
523 | (a)->va_mode = nfstov_mode(*tl); \ |
524 | } \ |
525 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
526 | if (*tl == nfs_true) { \ |
527 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
528 | (a)->va_uid = fxdr_unsigned(uid_t, *tl); \ |
529 | } \ |
530 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
531 | if (*tl == nfs_true) { \ |
532 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
533 | (a)->va_gid = fxdr_unsigned(gid_t, *tl); \ |
534 | } \ |
535 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
536 | if (*tl == nfs_true) { \ |
537 | nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
538 | (a)->va_size = fxdr_hyper(tl); \ |
539 | } \ |
540 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
541 | switch (fxdr_unsigned(int, *tl)) { \ |
542 | case NFSV3SATTRTIME_TOCLIENT: \ |
543 | nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
544 | fxdr_nfsv3time(tl, &(a)->va_atime); \ |
545 | break; \ |
546 | case NFSV3SATTRTIME_TOSERVER: \ |
547 | getnanotime(&(a)->va_atime); \ |
548 | (a)->va_vaflags |= VA_UTIMES_NULL; \ |
549 | break; \ |
550 | }; \ |
551 | nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ |
552 | switch (fxdr_unsigned(int, *tl)) { \ |
553 | case NFSV3SATTRTIME_TOCLIENT: \ |
554 | nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ |
555 | fxdr_nfsv3time(tl, &(a)->va_mtime); \ |
556 | (a)->va_vaflags &= ~VA_UTIMES_NULL; \ |
557 | break; \ |
558 | case NFSV3SATTRTIME_TOSERVER: \ |
559 | getnanotime(&(a)->va_mtime); \ |
560 | (a)->va_vaflags |= VA_UTIMES_NULL; \ |
561 | break; \ |
562 | }; } |
563 | |
564 | #endif |
565 | |