1 /*-
2 * Coda: an Experimental Distributed File System
3 * Release 3.1
4 *
5 * Copyright (c) 1987-1998 Carnegie Mellon University
6 * All Rights Reserved
7 *
8 * Permission to use, copy, modify and distribute this software and its
9 * documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation, and
13 * that credit is given to Carnegie Mellon University in all documents
14 * and publicity pertaining to direct or indirect use of this code or its
15 * derivatives.
16 *
17 * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
18 * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
19 * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
20 * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
21 * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
22 * ANY DERIVATIVE WORK.
23 *
24 * Carnegie Mellon encourages users of this software to return any
25 * improvements or extensions that they make, and to grant Carnegie
26 * Mellon the rights to redistribute these changes without encumbrance.
27 *
28 * @(#) src/sys/cfs/coda_venus.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/fcntl.h>
37 #include <sys/ioccom.h>
38 #include <sys/lock.h>
39 #include <sys/malloc.h>
40 #include <sys/mutex.h>
41 #include <sys/proc.h>
42 #include <sys/sx.h>
43
44 #include <fs/coda/coda.h>
45 #include <fs/coda/cnode.h>
46 #include <fs/coda/coda_venus.h>
47 #include <fs/coda/coda_pioctl.h>
48
49 #define DECL_NO_IN(name) \
50 struct coda_in_hdr *inp; \
51 struct name ## _out *outp; \
52 int name ## _size = sizeof (struct coda_in_hdr); \
53 int Isize = sizeof (struct coda_in_hdr); \
54 int Osize = sizeof (struct name ## _out); \
55 int error
56
57 #define DECL(name) \
58 struct name ## _in *inp; \
59 struct name ## _out *outp; \
60 int name ## _size = sizeof (struct name ## _in); \
61 int Isize = sizeof (struct name ## _in); \
62 int Osize = sizeof (struct name ## _out); \
63 int error
64
65 #define DECL_NO_OUT(name) \
66 struct name ## _in *inp; \
67 struct coda_out_hdr *outp; \
68 int name ## _size = sizeof (struct name ## _in); \
69 int Isize = sizeof (struct name ## _in); \
70 int Osize = sizeof (struct coda_out_hdr); \
71 int error
72
73 #define ALLOC_NO_IN(name) \
74 if (Osize > name ## _size) \
75 name ## _size = Osize; \
76 CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\
77 outp = (struct name ## _out *) inp
78
79 #define ALLOC(name) \
80 if (Osize > name ## _size) \
81 name ## _size = Osize; \
82 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
83 outp = (struct name ## _out *) inp
84
85 #define ALLOC_NO_OUT(name) \
86 if (Osize > name ## _size) \
87 name ## _size = Osize; \
88 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
89 outp = (struct coda_out_hdr *) inp
90
91 #define STRCPY(struc, name, len) \
92 bcopy(name, (char *)inp + (int)inp->struc, len); \
93 ((char*)inp + (int)inp->struc)[len++] = 0; \
94 Isize += len
95
96 #ifdef CODA_COMPAT_5
97 #define INIT_IN(in, op, ident, p) \
98 (in)->opcode = (op); \
99 sx_slock(&proctree_lock); \
100 (in)->pid = p ? p->p_pid : -1; \
101 (in)->pgid = p ? p->p_pgid : -1; \
102 (in)->sid = (p && p->p_session && p->p_session->s_leader) ? (p->p_session->s_leader->p_pid) : -1; \
103 sx_sunlock(&proctree_lock); \
104 if (ident != NOCRED) { \
105 (in)->cred.cr_uid = ident->cr_uid; \
106 (in)->cred.cr_groupid = ident->cr_gid; \
107 } else { \
108 bzero(&((in)->cred),sizeof(struct coda_cred)); \
109 (in)->cred.cr_uid = -1; \
110 (in)->cred.cr_groupid = -1; \
111 }
112 #else
113 #define INIT_IN(in, op, ident, p) \
114 (in)->opcode = (op); \
115 (in)->pid = p ? p->p_pid : -1; \
116 (in)->pgid = p ? p->p_pgid : -1; \
117 if (ident != NOCRED) { \
118 (in)->uid = ident->cr_uid; \
119 } else { \
120 (in)->uid = -1; \
121 }
122 #endif
123 #define CNV_OFLAG(to, from) \
124 do { \
125 to = 0; \
126 if (from & FREAD) to |= C_O_READ; \
127 if (from & FWRITE) to |= C_O_WRITE; \
128 if (from & O_TRUNC) to |= C_O_TRUNC; \
129 if (from & O_EXCL) to |= C_O_EXCL; \
130 if (from & O_CREAT) to |= C_O_CREAT; \
131 } while (0)
132
133 #define CNV_VV2V_ATTR(top, fromp) \
134 do { \
135 (top)->va_type = (fromp)->va_type; \
136 (top)->va_mode = (fromp)->va_mode; \
137 (top)->va_nlink = (fromp)->va_nlink; \
138 (top)->va_uid = (fromp)->va_uid; \
139 (top)->va_gid = (fromp)->va_gid; \
140 (top)->va_fsid = VNOVAL; \
141 (top)->va_fileid = (fromp)->va_fileid; \
142 (top)->va_size = (fromp)->va_size; \
143 (top)->va_blocksize = (fromp)->va_blocksize; \
144 (top)->va_atime = (fromp)->va_atime; \
145 (top)->va_mtime = (fromp)->va_mtime; \
146 (top)->va_ctime = (fromp)->va_ctime; \
147 (top)->va_gen = (fromp)->va_gen; \
148 (top)->va_flags = (fromp)->va_flags; \
149 (top)->va_rdev = (fromp)->va_rdev; \
150 (top)->va_bytes = (fromp)->va_bytes; \
151 (top)->va_filerev = (fromp)->va_filerev; \
152 (top)->va_vaflags = VNOVAL; \
153 (top)->va_spare = VNOVAL; \
154 } while (0)
155
156 #define CNV_V2VV_ATTR(top, fromp) \
157 do { \
158 (top)->va_type = (fromp)->va_type; \
159 (top)->va_mode = (fromp)->va_mode; \
160 (top)->va_nlink = (fromp)->va_nlink; \
161 (top)->va_uid = (fromp)->va_uid; \
162 (top)->va_gid = (fromp)->va_gid; \
163 (top)->va_fileid = (fromp)->va_fileid; \
164 (top)->va_size = (fromp)->va_size; \
165 (top)->va_blocksize = (fromp)->va_blocksize; \
166 (top)->va_atime = (fromp)->va_atime; \
167 (top)->va_mtime = (fromp)->va_mtime; \
168 (top)->va_ctime = (fromp)->va_ctime; \
169 (top)->va_gen = (fromp)->va_gen; \
170 (top)->va_flags = (fromp)->va_flags; \
171 (top)->va_rdev = (fromp)->va_rdev; \
172 (top)->va_bytes = (fromp)->va_bytes; \
173 (top)->va_filerev = (fromp)->va_filerev; \
174 } while (0)
175
176
177 int coda_kernel_version = CODA_KERNEL_VERSION;
178
179 int
180 venus_root(void *mdp,
181 struct ucred *cred, struct proc *p,
182 /*out*/ CodaFid *VFid)
183 {
184 DECL_NO_IN(coda_root); /* sets Isize & Osize */
185 ALLOC_NO_IN(coda_root); /* sets inp & outp */
186
187 /* send the open to venus. */
188 INIT_IN(inp, CODA_ROOT, cred, p);
189
190 error = coda_call(mdp, Isize, &Osize, (char *)inp);
191 if (!error)
192 *VFid = outp->Fid;
193
194 CODA_FREE(inp, coda_root_size);
195 return error;
196 }
197
198 int
199 venus_open(void *mdp, CodaFid *fid, int flag,
200 struct ucred *cred, struct proc *p,
201 /*out*/ struct vnode **vp)
202 {
203 int cflag;
204 DECL(coda_open_by_fd); /* sets Isize & Osize */
205 ALLOC(coda_open_by_fd); /* sets inp & outp */
206
207 /* send the open to venus. */
208 INIT_IN(&inp->ih, CODA_OPEN_BY_FD, cred, p);
209 inp->Fid = *fid;
210 CNV_OFLAG(cflag, flag);
211 inp->flags = cflag;
212
213 error = coda_call(mdp, Isize, &Osize, (char *)inp);
214 *vp = error ? NULL : outp->vp;
215
216 CODA_FREE(inp, coda_open_by_fd_size);
217 return error;
218 }
219
220 int
221 venus_close(void *mdp, CodaFid *fid, int flag,
222 struct ucred *cred, struct proc *p)
223 {
224 int cflag;
225 DECL_NO_OUT(coda_close); /* sets Isize & Osize */
226 ALLOC_NO_OUT(coda_close); /* sets inp & outp */
227
228 INIT_IN(&inp->ih, CODA_CLOSE, cred, p);
229 inp->Fid = *fid;
230 CNV_OFLAG(cflag, flag);
231 inp->flags = cflag;
232
233 error = coda_call(mdp, Isize, &Osize, (char *)inp);
234
235 CODA_FREE(inp, coda_close_size);
236 return error;
237 }
238
239 /*
240 * these two calls will not exist!!! the container file is read/written
241 * directly.
242 */
243 void
244 venus_read(void)
245 {
246 }
247
248 void
249 venus_write(void)
250 {
251 }
252
253 /*
254 * this is a bit sad too. the ioctl's are for the control file, not for
255 * normal files.
256 */
257 int
258 venus_ioctl(void *mdp, CodaFid *fid,
259 int com, int flag, caddr_t data,
260 struct ucred *cred, struct proc *p)
261 {
262 DECL(coda_ioctl); /* sets Isize & Osize */
263 struct PioctlData *iap = (struct PioctlData *)data;
264 int tmp;
265
266 coda_ioctl_size = VC_MAXMSGSIZE;
267 ALLOC(coda_ioctl); /* sets inp & outp */
268
269 INIT_IN(&inp->ih, CODA_IOCTL, cred, p);
270 inp->Fid = *fid;
271
272 /* command was mutated by increasing its size field to reflect the
273 * path and follow args. we need to subtract that out before sending
274 * the command to venus.
275 */
276 inp->cmd = (com & ~(IOCPARM_MASK << 16));
277 tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int);
278 inp->cmd |= (tmp & IOCPARM_MASK) << 16;
279
280 inp->rwflag = flag;
281 inp->len = iap->vi.in_size;
282 inp->data = (char *)(sizeof (struct coda_ioctl_in));
283
284 error = copyin(iap->vi.in, (char*)inp + (long)inp->data,
285 iap->vi.in_size);
286 if (error) {
287 CODA_FREE(inp, coda_ioctl_size);
288 return(error);
289 }
290
291 Osize = VC_MAXMSGSIZE;
292 error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp);
293
294 /* copy out the out buffer. */
295 if (!error) {
296 if (outp->len > iap->vi.out_size) {
297 error = EINVAL;
298 } else {
299 error = copyout((char *)outp + (long)outp->data,
300 iap->vi.out, iap->vi.out_size);
301 }
302 }
303
304 CODA_FREE(inp, coda_ioctl_size);
305 return error;
306 }
307
308 int
309 venus_getattr(void *mdp, CodaFid *fid,
310 struct ucred *cred, struct proc *p,
311 /*out*/ struct vattr *vap)
312 {
313 DECL(coda_getattr); /* sets Isize & Osize */
314 ALLOC(coda_getattr); /* sets inp & outp */
315
316 /* send the open to venus. */
317 INIT_IN(&inp->ih, CODA_GETATTR, cred, p);
318 inp->Fid = *fid;
319
320 error = coda_call(mdp, Isize, &Osize, (char *)inp);
321 if (!error) {
322 CNV_VV2V_ATTR(vap, &outp->attr);
323 }
324
325 CODA_FREE(inp, coda_getattr_size);
326 return error;
327 }
328
329 int
330 venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap,
331 struct ucred *cred, struct proc *p)
332 {
333 DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */
334 ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */
335
336 /* send the open to venus. */
337 INIT_IN(&inp->ih, CODA_SETATTR, cred, p);
338 inp->Fid = *fid;
339 CNV_V2VV_ATTR(&inp->attr, vap);
340
341 error = coda_call(mdp, Isize, &Osize, (char *)inp);
342
343 CODA_FREE(inp, coda_setattr_size);
344 return error;
345 }
346
347 int
348 venus_access(void *mdp, CodaFid *fid, int mode,
349 struct ucred *cred, struct proc *p)
350 {
351 DECL_NO_OUT(coda_access); /* sets Isize & Osize */
352 ALLOC_NO_OUT(coda_access); /* sets inp & outp */
353
354 /* send the open to venus. */
355 INIT_IN(&inp->ih, CODA_ACCESS, cred, p);
356 inp->Fid = *fid;
357 /* NOTE:
358 * NetBSD and Venus internals use the "data" in the low 3 bits.
359 * Hence, the conversion.
360 */
361 inp->flags = mode>>6;
362
363 error = coda_call(mdp, Isize, &Osize, (char *)inp);
364
365 CODA_FREE(inp, coda_access_size);
366 return error;
367 }
368
369 int
370 venus_readlink(void *mdp, CodaFid *fid,
371 struct ucred *cred, struct proc *p,
372 /*out*/ char **str, int *len)
373 {
374 DECL(coda_readlink); /* sets Isize & Osize */
375 coda_readlink_size += CODA_MAXPATHLEN;
376 ALLOC(coda_readlink); /* sets inp & outp */
377
378 /* send the open to venus. */
379 INIT_IN(&inp->ih, CODA_READLINK, cred, p);
380 inp->Fid = *fid;
381
382 Osize += CODA_MAXPATHLEN;
383 error = coda_call(mdp, Isize, &Osize, (char *)inp);
384 if (!error) {
385 CODA_ALLOC(*str, char *, outp->count);
386 *len = outp->count;
387 bcopy((char *)outp + (long)outp->data, *str, *len);
388 }
389
390 CODA_FREE(inp, coda_readlink_size);
391 return error;
392 }
393
394 int
395 venus_fsync(void *mdp, CodaFid *fid, struct proc *p)
396 {
397 DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */
398 ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */
399
400 /* send the open to venus. */
401 INIT_IN(&inp->ih, CODA_FSYNC, NOCRED, p); /* XXX: should be cached mount cred */
402 inp->Fid = *fid;
403
404 error = coda_call(mdp, Isize, &Osize, (char *)inp);
405
406 CODA_FREE(inp, coda_fsync_size);
407 return error;
408 }
409
410 int
411 venus_lookup(void *mdp, CodaFid *fid,
412 const char *nm, int len,
413 struct ucred *cred, struct proc *p,
414 /*out*/ CodaFid *VFid, int *vtype)
415 {
416 DECL(coda_lookup); /* sets Isize & Osize */
417 coda_lookup_size += len + 1;
418 ALLOC(coda_lookup); /* sets inp & outp */
419
420 /* send the open to venus. */
421 INIT_IN(&inp->ih, CODA_LOOKUP, cred, p);
422 inp->Fid = *fid;
423
424 /* NOTE:
425 * Between version 1 and version 2 we have added an extra flag field
426 * to this structure. But because the string was at the end and because
427 * of the wierd way we represent strings by having the slot point to
428 * where the string characters are in the "heap", we can just slip the
429 * flag parameter in after the string slot pointer and veni that don't
430 * know better won't see this new flag field ...
431 * Otherwise we'd need two different venus_lookup functions.
432 */
433 inp->name = Isize;
434 inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */
435 STRCPY(name, nm, len); /* increments Isize */
436
437 error = coda_call(mdp, Isize, &Osize, (char *)inp);
438 if (!error) {
439 *VFid = outp->Fid;
440 *vtype = outp->vtype;
441 }
442
443 CODA_FREE(inp, coda_lookup_size);
444 return error;
445 }
446
447 int
448 venus_create(void *mdp, CodaFid *fid,
449 const char *nm, int len, int exclusive, int mode, struct vattr *va,
450 struct ucred *cred, struct proc *p,
451 /*out*/ CodaFid *VFid, struct vattr *attr)
452 {
453 DECL(coda_create); /* sets Isize & Osize */
454 coda_create_size += len + 1;
455 ALLOC(coda_create); /* sets inp & outp */
456
457 /* send the open to venus. */
458 INIT_IN(&inp->ih, CODA_CREATE, cred, p);
459 inp->Fid = *fid;
460 inp->excl = exclusive ? C_O_EXCL : 0;
461 inp->mode = mode;
462 CNV_V2VV_ATTR(&inp->attr, va);
463
464 inp->name = Isize;
465 STRCPY(name, nm, len); /* increments Isize */
466
467 error = coda_call(mdp, Isize, &Osize, (char *)inp);
468 if (!error) {
469 *VFid = outp->Fid;
470 CNV_VV2V_ATTR(attr, &outp->attr);
471 }
472
473 CODA_FREE(inp, coda_create_size);
474 return error;
475 }
476
477 int
478 venus_remove(void *mdp, CodaFid *fid,
479 const char *nm, int len,
480 struct ucred *cred, struct proc *p)
481 {
482 DECL_NO_OUT(coda_remove); /* sets Isize & Osize */
483 coda_remove_size += len + 1;
484 ALLOC_NO_OUT(coda_remove); /* sets inp & outp */
485
486 /* send the open to venus. */
487 INIT_IN(&inp->ih, CODA_REMOVE, cred, p);
488 inp->Fid = *fid;
489
490 inp->name = Isize;
491 STRCPY(name, nm, len); /* increments Isize */
492
493 error = coda_call(mdp, Isize, &Osize, (char *)inp);
494
495 CODA_FREE(inp, coda_remove_size);
496 return error;
497 }
498
499 int
500 venus_link(void *mdp, CodaFid *fid, CodaFid *tfid,
501 const char *nm, int len,
502 struct ucred *cred, struct proc *p)
503 {
504 DECL_NO_OUT(coda_link); /* sets Isize & Osize */
505 coda_link_size += len + 1;
506 ALLOC_NO_OUT(coda_link); /* sets inp & outp */
507
508 /* send the open to venus. */
509 INIT_IN(&inp->ih, CODA_LINK, cred, p);
510 inp->sourceFid = *fid;
511 inp->destFid = *tfid;
512
513 inp->tname = Isize;
514 STRCPY(tname, nm, len); /* increments Isize */
515
516 error = coda_call(mdp, Isize, &Osize, (char *)inp);
517
518 CODA_FREE(inp, coda_link_size);
519 return error;
520 }
521
522 int
523 venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid,
524 const char *nm, int len, const char *tnm, int tlen,
525 struct ucred *cred, struct proc *p)
526 {
527 DECL_NO_OUT(coda_rename); /* sets Isize & Osize */
528 coda_rename_size += len + 1 + tlen + 1;
529 ALLOC_NO_OUT(coda_rename); /* sets inp & outp */
530
531 /* send the open to venus. */
532 INIT_IN(&inp->ih, CODA_RENAME, cred, p);
533 inp->sourceFid = *fid;
534 inp->destFid = *tfid;
535
536 inp->srcname = Isize;
537 STRCPY(srcname, nm, len); /* increments Isize */
538
539 inp->destname = Isize;
540 STRCPY(destname, tnm, tlen); /* increments Isize */
541
542 error = coda_call(mdp, Isize, &Osize, (char *)inp);
543
544 CODA_FREE(inp, coda_rename_size);
545 return error;
546 }
547
548 int
549 venus_mkdir(void *mdp, CodaFid *fid,
550 const char *nm, int len, struct vattr *va,
551 struct ucred *cred, struct proc *p,
552 /*out*/ CodaFid *VFid, struct vattr *ova)
553 {
554 DECL(coda_mkdir); /* sets Isize & Osize */
555 coda_mkdir_size += len + 1;
556 ALLOC(coda_mkdir); /* sets inp & outp */
557
558 /* send the open to venus. */
559 INIT_IN(&inp->ih, CODA_MKDIR, cred, p);
560 inp->Fid = *fid;
561 CNV_V2VV_ATTR(&inp->attr, va);
562
563 inp->name = Isize;
564 STRCPY(name, nm, len); /* increments Isize */
565
566 error = coda_call(mdp, Isize, &Osize, (char *)inp);
567 if (!error) {
568 *VFid = outp->Fid;
569 CNV_VV2V_ATTR(ova, &outp->attr);
570 }
571
572 CODA_FREE(inp, coda_mkdir_size);
573 return error;
574 }
575
576 int
577 venus_rmdir(void *mdp, CodaFid *fid,
578 const char *nm, int len,
579 struct ucred *cred, struct proc *p)
580 {
581 DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */
582 coda_rmdir_size += len + 1;
583 ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */
584
585 /* send the open to venus. */
586 INIT_IN(&inp->ih, CODA_RMDIR, cred, p);
587 inp->Fid = *fid;
588
589 inp->name = Isize;
590 STRCPY(name, nm, len); /* increments Isize */
591
592 error = coda_call(mdp, Isize, &Osize, (char *)inp);
593
594 CODA_FREE(inp, coda_rmdir_size);
595 return error;
596 }
597
598 int
599 venus_symlink(void *mdp, CodaFid *fid,
600 const char *lnm, int llen, const char *nm, int len, struct vattr *va,
601 struct ucred *cred, struct proc *p)
602 {
603 DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */
604 coda_symlink_size += llen + 1 + len + 1;
605 ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */
606
607 /* send the open to venus. */
608 INIT_IN(&inp->ih, CODA_SYMLINK, cred, p);
609 inp->Fid = *fid;
610 CNV_V2VV_ATTR(&inp->attr, va);
611
612 inp->srcname = Isize;
613 STRCPY(srcname, lnm, llen); /* increments Isize */
614
615 inp->tname = Isize;
616 STRCPY(tname, nm, len); /* increments Isize */
617
618 error = coda_call(mdp, Isize, &Osize, (char *)inp);
619
620 CODA_FREE(inp, coda_symlink_size);
621 return error;
622 }
623
624 int
625 venus_readdir(void *mdp, CodaFid *fid,
626 int count, int offset,
627 struct ucred *cred, struct proc *p,
628 /*out*/ char *buffer, int *len)
629 {
630 DECL(coda_readdir); /* sets Isize & Osize */
631 coda_readdir_size = VC_MAXMSGSIZE;
632 ALLOC(coda_readdir); /* sets inp & outp */
633
634 /* send the open to venus. */
635 INIT_IN(&inp->ih, CODA_READDIR, cred, p);
636 inp->Fid = *fid;
637 inp->count = count;
638 inp->offset = offset;
639
640 Osize = VC_MAXMSGSIZE;
641 error = coda_call(mdp, Isize, &Osize, (char *)inp);
642 if (!error) {
643 bcopy((char *)outp + (long)outp->data, buffer, outp->size);
644 *len = outp->size;
645 }
646
647 CODA_FREE(inp, coda_readdir_size);
648 return error;
649 }
650
651 int
652 venus_fhtovp(void *mdp, CodaFid *fid,
653 struct ucred *cred, struct proc *p,
654 /*out*/ CodaFid *VFid, int *vtype)
655 {
656 DECL(coda_vget); /* sets Isize & Osize */
657 ALLOC(coda_vget); /* sets inp & outp */
658
659 /* Send the open to Venus. */
660 INIT_IN(&inp->ih, CODA_VGET, cred, p);
661 inp->Fid = *fid;
662
663 error = coda_call(mdp, Isize, &Osize, (char *)inp);
664 if (!error) {
665 *VFid = outp->Fid;
666 *vtype = outp->vtype;
667 }
668
669 CODA_FREE(inp, coda_vget_size);
670 return error;
671 }
Cache object: c2890229d9b3094fbb24810c4fc811f4
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