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341568e0 JSP |
1 | /* |
2 | * Copyright (c) 1992 The Regents of the University of California | |
3 | * Copyright (c) 1990, 1992 Jan-Simon Pendry | |
4 | * All rights reserved. | |
5 | * | |
6 | * This code is derived from software donated to Berkeley by | |
7 | * Jan-Simon Pendry. | |
8 | * | |
9 | * %sccs.include.redist.c% | |
10 | * | |
a1e23f7a | 11 | * @(#)kernfs_vnops.c 7.4 (Berkeley) %G% |
341568e0 JSP |
12 | */ |
13 | ||
14 | /* | |
15 | * Kernel parameter filesystem (/kern) | |
16 | */ | |
17 | ||
18 | #include <sys/param.h> | |
19 | #include <sys/systm.h> | |
20 | #include <sys/kernel.h> | |
21 | #include <sys/vmmeter.h> | |
22 | #include <sys/types.h> | |
23 | #include <sys/time.h> | |
24 | #include <sys/proc.h> | |
25 | #include <sys/vnode.h> | |
26 | #include <sys/malloc.h> | |
27 | #include <sys/file.h> | |
28 | #include <sys/stat.h> | |
29 | #include <sys/mount.h> | |
30 | #include <sys/namei.h> | |
31 | #include <sys/buf.h> | |
32 | #include <sys/dirent.h> | |
33 | #include <miscfs/kernfs/kernfs.h> | |
34 | ||
35 | #define KSTRING 256 /* Largest I/O available via this filesystem */ | |
36 | #define UIO_MX 32 | |
37 | ||
a1e23f7a JSP |
38 | #define READ_MODE (S_IRUSR|S_IRGRP|S_IROTH) |
39 | #define WRITE_MODE (S_IWUSR|S_IRUSR|S_IRGRP|S_IROTH) | |
40 | #define DIR_MODE (S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) | |
41 | ||
341568e0 JSP |
42 | struct kern_target { |
43 | char *kt_name; | |
44 | void *kt_data; | |
45 | #define KTT_NULL 1 | |
46 | #define KTT_TIME 5 | |
47 | #define KTT_INT 17 | |
48 | #define KTT_STRING 31 | |
49 | #define KTT_HOSTNAME 47 | |
50 | #define KTT_AVENRUN 53 | |
51 | int kt_tag; | |
341568e0 JSP |
52 | int kt_rw; |
53 | int kt_vtype; | |
54 | } kern_targets[] = { | |
55 | /* NOTE: The name must be less than UIO_MX-16 chars in length */ | |
56 | /* name data tag ro/rw */ | |
a1e23f7a JSP |
57 | { ".", 0, KTT_NULL, VREAD, VDIR }, |
58 | { "..", 0, KTT_NULL, VREAD, VDIR }, | |
59 | { "copyright", copyright, KTT_STRING, VREAD, VREG }, | |
60 | { "hostname", 0, KTT_HOSTNAME, VREAD|VWRITE, VREG }, | |
61 | { "hz", &hz, KTT_INT, VREAD, VREG }, | |
62 | { "loadavg", 0, KTT_AVENRUN, VREAD, VREG }, | |
63 | { "pagesize", &cnt.v_page_size, KTT_INT, VREAD, VREG }, | |
64 | { "physmem", &physmem, KTT_INT, VREAD, VREG }, | |
65 | { "root", 0, KTT_NULL, VREAD, VDIR }, | |
66 | { "rootdev", 0, KTT_NULL, VREAD, VBLK }, | |
67 | { "rrootdev", 0, KTT_NULL, VREAD, VCHR }, | |
68 | { "time", 0, KTT_TIME, VREAD, VREG }, | |
69 | { "version", version, KTT_STRING, VREAD, VREG }, | |
341568e0 JSP |
70 | }; |
71 | ||
72 | static int nkern_targets = sizeof(kern_targets) / sizeof(kern_targets[0]); | |
73 | ||
74 | static int | |
75 | kernfs_xread(kt, buf, len, lenp) | |
76 | struct kern_target *kt; | |
77 | char *buf; | |
78 | int len; | |
79 | int *lenp; | |
80 | { | |
81 | int xlen; | |
82 | ||
83 | switch (kt->kt_tag) { | |
84 | case KTT_TIME: { | |
85 | struct timeval tv; | |
86 | microtime(&tv); | |
87 | sprintf(buf, "%d %d\n", tv.tv_sec, tv.tv_usec); | |
88 | break; | |
89 | } | |
90 | ||
91 | case KTT_INT: { | |
92 | int *ip = kt->kt_data; | |
93 | sprintf(buf, "%d\n", *ip); | |
94 | break; | |
95 | } | |
96 | ||
97 | case KTT_STRING: { | |
98 | char *cp = kt->kt_data; | |
99 | int xlen = strlen(cp) + 1; | |
100 | ||
101 | if (xlen >= len) | |
102 | return (EINVAL); | |
103 | ||
104 | bcopy(cp, buf, xlen); | |
105 | break; | |
106 | } | |
107 | ||
108 | case KTT_HOSTNAME: { | |
109 | char *cp = hostname; | |
110 | int xlen = hostnamelen; | |
111 | ||
112 | if (xlen >= len) | |
113 | return (EINVAL); | |
114 | ||
115 | sprintf(buf, "%s\n", cp); | |
116 | break; | |
117 | } | |
118 | ||
119 | case KTT_AVENRUN: | |
120 | sprintf(buf, "%ld %ld %ld %ld\n", | |
121 | averunnable.ldavg[0], | |
122 | averunnable.ldavg[1], | |
123 | averunnable.ldavg[2], | |
124 | averunnable.fscale); | |
125 | break; | |
126 | ||
127 | default: | |
128 | return (EINVAL); | |
129 | } | |
130 | ||
131 | *lenp = strlen(buf); | |
132 | return (0); | |
133 | } | |
134 | ||
135 | static int | |
136 | kernfs_xwrite(kt, buf, len) | |
137 | struct kern_target *kt; | |
138 | char *buf; | |
139 | int len; | |
140 | { | |
141 | switch (kt->kt_tag) { | |
142 | case KTT_HOSTNAME: { | |
143 | if (buf[len-1] == '\n') | |
144 | --len; | |
145 | bcopy(buf, hostname, len); | |
146 | hostnamelen = len - 1; | |
147 | return (0); | |
148 | } | |
149 | ||
150 | default: | |
151 | return (EIO); | |
152 | } | |
153 | } | |
154 | ||
155 | ||
156 | /* | |
157 | * vp is the current namei directory | |
158 | * ndp is the name to locate in that directory... | |
159 | */ | |
160 | kernfs_lookup(ap) | |
161 | struct vop_lookup_args /* { | |
162 | struct vnode * a_dvp; | |
163 | struct vnode ** a_vpp; | |
164 | struct componentname * a_cnp; | |
165 | } */ *ap; | |
166 | { | |
167 | struct vnode **vpp = ap->a_vpp; | |
168 | struct vnode *dvp = ap->a_dvp; | |
169 | struct componentname *cnp = ap->a_cnp; | |
170 | char *pname; | |
171 | struct proc *p; | |
172 | int error; | |
173 | struct vnode *fvp; | |
174 | int i; | |
175 | ||
176 | #ifdef KERNFS_DIAGNOSTIC | |
177 | printf("kernfs_lookup(%x)\n", ap); | |
178 | printf("kernfs_lookup(dp = %x, vpp = %x, cnp = %x)\n", dvp, vpp, ap->a_cnp); | |
179 | #endif | |
180 | pname = cnp->cn_nameptr; | |
181 | #ifdef KERNFS_DIAGNOSTIC | |
182 | printf("kernfs_lookup(%s)\n", pname); | |
183 | #endif | |
184 | if (cnp->cn_namelen == 1 && *pname == '.') { | |
185 | *vpp = dvp; | |
fea856fc | 186 | VREF(dvp); |
341568e0 JSP |
187 | /*VOP_LOCK(dvp);*/ |
188 | return (0); | |
189 | } | |
190 | ||
191 | if (cnp->cn_namelen == 4 && bcmp(pname, "root", 4) == 0) { | |
192 | *vpp = rootdir; | |
193 | VREF(rootdir); | |
194 | VOP_LOCK(rootdir); | |
195 | return (0); | |
196 | } | |
fea856fc | 197 | |
341568e0 JSP |
198 | /* |
199 | * /kern/rootdev is the root device | |
200 | */ | |
201 | if (cnp->cn_namelen == 7 && bcmp(pname, "rootdev", 7) == 0) { | |
202 | *vpp = rootvp; | |
203 | VREF(rootvp); | |
204 | VOP_LOCK(rootvp); | |
205 | return (0); | |
206 | } | |
207 | ||
a1e23f7a JSP |
208 | /* |
209 | * /kern/rrootdev is the raw root device | |
210 | */ | |
211 | if (cnp->cn_namelen == 8 && bcmp(pname, "rrootdev", 8) == 0) { | |
212 | if (rrootvp) { | |
213 | *vpp = rrootvp; | |
214 | VREF(rrootvp); | |
215 | VOP_LOCK(rrootvp); | |
216 | return (0); | |
217 | } | |
218 | error = ENXIO; | |
219 | goto bad; | |
220 | } | |
221 | ||
1128113a JSP |
222 | error = ENOENT; |
223 | ||
341568e0 JSP |
224 | for (i = 0; i < nkern_targets; i++) { |
225 | struct kern_target *kt = &kern_targets[i]; | |
226 | if (cnp->cn_namelen == strlen(kt->kt_name) && | |
227 | bcmp(kt->kt_name, pname, cnp->cn_namelen) == 0) { | |
228 | error = 0; | |
229 | break; | |
230 | } | |
231 | } | |
232 | ||
233 | #ifdef KERNFS_DIAGNOSTIC | |
234 | printf("kernfs_lookup: i = %d, error = %d\n", i, error); | |
235 | #endif | |
236 | ||
237 | if (error) | |
238 | goto bad; | |
239 | ||
240 | #ifdef KERNFS_DIAGNOSTIC | |
241 | printf("kernfs_lookup: allocate new vnode\n"); | |
242 | #endif | |
243 | error = getnewvnode(VT_UFS, dvp->v_mount, kernfs_vnodeop_p, &fvp); | |
244 | if (error) | |
245 | goto bad; | |
246 | MALLOC(fvp->v_data, void *, sizeof(struct kernfs_node), M_TEMP, M_WAITOK); | |
247 | VTOKERN(fvp)->kf_kt = &kern_targets[i]; | |
248 | fvp->v_type = VTOKERN(fvp)->kf_kt->kt_vtype; | |
249 | *vpp = fvp; | |
250 | #ifdef KERNFS_DIAGNOSTIC | |
251 | printf("kernfs_lookup: newvp = %x\n", fvp); | |
252 | #endif | |
253 | return (0); | |
254 | ||
255 | bad:; | |
256 | *vpp = NULL; | |
257 | #ifdef KERNFS_DIAGNOSTIC | |
258 | printf("kernfs_lookup: error = %d\n", error); | |
259 | #endif | |
260 | return (error); | |
261 | } | |
262 | ||
263 | kernfs_open(ap) | |
264 | struct vop_open_args /* { | |
265 | struct vnode *a_vp; | |
266 | int a_mode; | |
267 | struct ucred *a_cred; | |
268 | struct proc *a_p; | |
269 | } */ *ap; | |
270 | { | |
271 | struct vnode *vp = ap->a_vp; | |
272 | ||
273 | /* | |
274 | * Can always open the root (modulo perms) | |
275 | */ | |
276 | if (vp->v_flag & VROOT) | |
277 | return (0); | |
278 | ||
279 | #ifdef KERNFS_DIAGNOSTIC | |
280 | printf("kernfs_open, mode = %x, file = %s\n", | |
281 | ap->a_mode, VTOKERN(vp)->kf_kt->kt_name); | |
282 | #endif | |
283 | ||
a1e23f7a | 284 | if ((ap->a_mode & FWRITE) && VTOKERN(vp)->kf_kt->kt_rw != VWRITE) |
341568e0 JSP |
285 | return (EBADF); |
286 | ||
287 | return (0); | |
288 | } | |
289 | ||
290 | static int | |
291 | kernfs_access(ap) | |
292 | struct vop_access_args /* { | |
293 | struct vnode *a_vp; | |
294 | int a_mode; | |
295 | struct ucred *a_cred; | |
296 | struct proc *a_p; | |
297 | } */ *ap; | |
298 | { | |
299 | struct vnode *vp = ap->a_vp; | |
300 | struct ucred *cred = ap->a_cred; | |
301 | struct kern_target *kt = VTOKERN(vp)->kf_kt; | |
302 | mode_t mode = ap->a_mode; | |
303 | ||
304 | if (mode & VEXEC) { | |
305 | if (vp->v_flag & VROOT) | |
306 | return (0); | |
307 | return (EACCES); | |
308 | } | |
309 | ||
310 | if (cred->cr_uid == 0) { | |
a1e23f7a | 311 | if ((mode & VWRITE) && (kt->kt_rw != VWRITE)) |
341568e0 JSP |
312 | return (EROFS); |
313 | return (0); | |
314 | } | |
315 | ||
316 | if (mode & VWRITE) | |
317 | return (EACCES); | |
318 | ||
319 | return (0); | |
320 | } | |
321 | ||
322 | ||
323 | kernfs_getattr(ap) | |
324 | struct vop_getattr_args /* { | |
325 | struct vnode *a_vp; | |
326 | struct vattr *a_vap; | |
327 | struct ucred *a_cred; | |
328 | struct proc *a_p; | |
329 | } */ *ap; | |
330 | { | |
331 | struct vnode *vp = ap->a_vp; | |
332 | struct vattr *vap = ap->a_vap; | |
333 | int error = 0; | |
334 | char strbuf[KSTRING]; | |
335 | struct kern_target *kt = VTOKERN(vp)->kf_kt; | |
336 | ||
337 | bzero((caddr_t) vap, sizeof(*vap)); | |
338 | vattr_null(vap); | |
339 | vap->va_uid = 0; | |
340 | vap->va_gid = 0; | |
341 | vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; | |
342 | /* vap->va_qsize = 0; */ | |
343 | vap->va_blocksize = DEV_BSIZE; | |
344 | microtime(&vap->va_atime); | |
345 | vap->va_mtime = vap->va_atime; | |
346 | vap->va_ctime = vap->va_ctime; | |
347 | vap->va_gen = 0; | |
348 | vap->va_flags = 0; | |
349 | vap->va_rdev = 0; | |
350 | /* vap->va_qbytes = 0; */ | |
351 | vap->va_bytes = 0; | |
352 | ||
353 | if (vp->v_flag & VROOT) { | |
354 | #ifdef KERNFS_DIAGNOSTIC | |
355 | printf("kernfs_getattr: stat rootdir\n"); | |
356 | #endif | |
357 | vap->va_type = VDIR; | |
a1e23f7a | 358 | vap->va_mode = DIR_MODE; |
341568e0 JSP |
359 | vap->va_nlink = 2; |
360 | vap->va_fileid = 2; | |
361 | vap->va_size = DEV_BSIZE; | |
362 | } else { | |
363 | int nbytes; | |
364 | #ifdef KERNFS_DIAGNOSTIC | |
365 | printf("kernfs_getattr: stat target %s\n", kt->kt_name); | |
366 | #endif | |
367 | vap->va_type = kt->kt_vtype; | |
a1e23f7a | 368 | vap->va_mode = (kt->kt_rw & VWRITE ? WRITE_MODE : READ_MODE); |
341568e0 JSP |
369 | vap->va_nlink = 1; |
370 | vap->va_fileid = 3 + (kt - kern_targets) / sizeof(*kt); | |
371 | error = kernfs_xread(kt, strbuf, sizeof(strbuf), &nbytes); | |
372 | vap->va_size = nbytes; | |
373 | } | |
374 | ||
375 | vp->v_type = vap->va_type; | |
376 | #ifdef KERNFS_DIAGNOSTIC | |
377 | printf("kernfs_getattr: return error %d\n", error); | |
378 | #endif | |
379 | return (error); | |
380 | } | |
381 | ||
382 | kernfs_setattr(ap) | |
383 | struct vop_setattr_args /* { | |
384 | struct vnode *a_vp; | |
385 | struct vattr *a_vap; | |
386 | struct ucred *a_cred; | |
387 | struct proc *a_p; | |
388 | } */ *ap; | |
389 | { | |
390 | ||
391 | /* | |
392 | * Silently ignore attribute changes. | |
393 | * This allows for open with truncate to have no | |
394 | * effect until some data is written. I want to | |
395 | * do it this way because all writes are atomic. | |
396 | */ | |
397 | return (0); | |
398 | } | |
399 | ||
400 | static int | |
401 | kernfs_read(ap) | |
402 | struct vop_read_args /* { | |
403 | struct vnode *a_vp; | |
404 | struct uio *a_uio; | |
405 | int a_ioflag; | |
406 | struct ucred *a_cred; | |
407 | } */ *ap; | |
408 | { | |
409 | struct vnode *vp = ap->a_vp; | |
410 | struct uio *uio = ap->a_uio; | |
411 | struct kern_target *kt = VTOKERN(vp)->kf_kt; | |
412 | char strbuf[KSTRING]; | |
413 | int off = uio->uio_offset; | |
414 | int len = 0; | |
415 | char *cp = strbuf; | |
416 | int error; | |
417 | #ifdef KERNFS_DIAGNOSTIC | |
418 | printf("kern_read %s\n", kt->kt_name); | |
419 | #endif | |
420 | ||
421 | error = kernfs_xread(kt, strbuf, sizeof(strbuf), &len); | |
422 | if (error) | |
423 | return (error); | |
424 | cp = strbuf + off; | |
425 | len -= off; | |
426 | return (uiomove(cp, len, uio)); | |
427 | } | |
428 | ||
429 | static int | |
430 | kernfs_write(ap) | |
431 | struct vop_write_args /* { | |
432 | struct vnode *a_vp; | |
433 | struct uio *a_uio; | |
434 | int a_ioflag; | |
435 | struct ucred *a_cred; | |
436 | } */ *ap; | |
437 | { | |
438 | struct vnode *vp = ap->a_vp; | |
439 | struct uio *uio = ap->a_uio; | |
440 | struct kern_target *kt = VTOKERN(vp)->kf_kt; | |
441 | char strbuf[KSTRING]; | |
442 | int len = uio->uio_resid; | |
443 | char *cp = strbuf; | |
444 | int xlen; | |
445 | int error; | |
446 | ||
447 | if (uio->uio_offset != 0) | |
448 | return (EINVAL); | |
449 | ||
450 | xlen = min(uio->uio_resid, KSTRING-1); | |
451 | error = uiomove(strbuf, xlen, uio); | |
452 | if (error) | |
453 | return (error); | |
454 | ||
455 | if (uio->uio_resid != 0) | |
456 | return (EIO); | |
457 | ||
458 | strbuf[xlen] = '\0'; | |
459 | return (kernfs_xwrite(kt, strbuf, xlen)); | |
460 | } | |
461 | ||
462 | ||
463 | kernfs_readdir(ap) | |
464 | struct vop_readdir_args /* { | |
465 | struct vnode *a_vp; | |
466 | struct uio *a_uio; | |
467 | struct ucred *a_cred; | |
468 | } */ *ap; | |
469 | { | |
470 | struct uio *uio = ap->a_uio; | |
471 | int i; | |
472 | int error; | |
473 | ||
474 | i = uio->uio_offset / UIO_MX; | |
475 | error = 0; | |
476 | while (uio->uio_resid > 0 && i < nkern_targets) { | |
477 | struct dirent d; | |
478 | struct dirent *dp = &d; | |
479 | struct kern_target *kt = &kern_targets[i]; | |
480 | #ifdef KERNFS_DIAGNOSTIC | |
481 | printf("kernfs_readdir: i = %d\n", i); | |
482 | #endif | |
483 | ||
484 | bzero((caddr_t) dp, UIO_MX); | |
485 | ||
486 | dp->d_namlen = strlen(kt->kt_name); | |
487 | bcopy(kt->kt_name, dp->d_name, dp->d_namlen+1); | |
488 | ||
489 | #ifdef KERNFS_DIAGNOSTIC | |
490 | printf("kernfs_readdir: name = %s, len = %d\n", | |
491 | dp->d_name, dp->d_namlen); | |
492 | #endif | |
493 | /* | |
494 | * Fill in the remaining fields | |
495 | */ | |
496 | dp->d_reclen = UIO_MX; | |
497 | dp->d_fileno = i + 3; | |
498 | dp->d_type = DT_UNKNOWN; /* XXX */ | |
499 | /* | |
500 | * And ship to userland | |
501 | */ | |
502 | error = uiomove((caddr_t) dp, UIO_MX, uio); | |
503 | if (error) | |
504 | break; | |
505 | i++; | |
506 | } | |
507 | ||
508 | uio->uio_offset = i * UIO_MX; | |
509 | ||
510 | return (error); | |
511 | } | |
512 | ||
513 | kernfs_inactive(ap) | |
514 | struct vop_inactive_args /* { | |
515 | struct vnode *a_vp; | |
516 | } */ *ap; | |
517 | { | |
518 | struct vnode *vp = ap->a_vp; | |
519 | ||
520 | /* | |
521 | * Clear out the v_type field to avoid | |
522 | * nasty things happening in vgone(). | |
523 | */ | |
524 | vp->v_type = VNON; | |
525 | #ifdef KERNFS_DIAGNOSTIC | |
526 | printf("kernfs_inactive(%x)\n", vp); | |
527 | #endif | |
528 | return (0); | |
529 | } | |
530 | ||
531 | kernfs_reclaim(ap) | |
532 | struct vop_reclaim_args /* { | |
533 | struct vnode *a_vp; | |
534 | } */ *ap; | |
535 | { | |
536 | struct vnode *vp = ap->a_vp; | |
537 | printf("kernfs_reclaim(%x)\n", vp); | |
538 | if (vp->v_data) { | |
539 | FREE(vp->v_data, M_TEMP); | |
540 | vp->v_data = 0; | |
541 | } | |
542 | return (0); | |
543 | } | |
544 | ||
545 | /* | |
546 | * Print out the contents of a /dev/fd vnode. | |
547 | */ | |
548 | /* ARGSUSED */ | |
549 | kernfs_print(ap) | |
550 | struct vop_print_args /* { | |
551 | struct vnode *a_vp; | |
552 | } */ *ap; | |
553 | { | |
554 | ||
555 | printf("tag VT_NON, kernfs vnode\n"); | |
556 | return (0); | |
557 | } | |
558 | ||
559 | /*void*/ | |
560 | kernfs_vfree(ap) | |
561 | struct vop_vfree_args /* { | |
562 | struct vnode *a_pvp; | |
563 | ino_t a_ino; | |
564 | int a_mode; | |
565 | } */ *ap; | |
566 | { | |
567 | ||
568 | return (0); | |
569 | } | |
570 | ||
571 | /* | |
572 | * /dev/fd vnode unsupported operation | |
573 | */ | |
574 | kernfs_enotsupp() | |
575 | { | |
576 | ||
577 | return (EOPNOTSUPP); | |
578 | } | |
579 | ||
580 | /* | |
581 | * /dev/fd "should never get here" operation | |
582 | */ | |
583 | kernfs_badop() | |
584 | { | |
585 | ||
586 | panic("kernfs: bad op"); | |
587 | /* NOTREACHED */ | |
588 | } | |
589 | ||
590 | /* | |
fea856fc | 591 | * kernfs vnode null operation |
341568e0 JSP |
592 | */ |
593 | kernfs_nullop() | |
594 | { | |
595 | ||
596 | return (0); | |
597 | } | |
598 | ||
599 | #define kernfs_create ((int (*) __P((struct vop_create_args *)))kernfs_enotsupp) | |
600 | #define kernfs_mknod ((int (*) __P((struct vop_mknod_args *)))kernfs_enotsupp) | |
601 | #define kernfs_close ((int (*) __P((struct vop_close_args *)))nullop) | |
602 | #define kernfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))kernfs_enotsupp) | |
603 | #define kernfs_select ((int (*) __P((struct vop_select_args *)))kernfs_enotsupp) | |
604 | #define kernfs_mmap ((int (*) __P((struct vop_mmap_args *)))kernfs_enotsupp) | |
605 | #define kernfs_fsync ((int (*) __P((struct vop_fsync_args *)))nullop) | |
606 | #define kernfs_seek ((int (*) __P((struct vop_seek_args *)))nullop) | |
607 | #define kernfs_remove ((int (*) __P((struct vop_remove_args *)))kernfs_enotsupp) | |
608 | #define kernfs_link ((int (*) __P((struct vop_link_args *)))kernfs_enotsupp) | |
609 | #define kernfs_rename ((int (*) __P((struct vop_rename_args *)))kernfs_enotsupp) | |
610 | #define kernfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))kernfs_enotsupp) | |
611 | #define kernfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))kernfs_enotsupp) | |
612 | #define kernfs_symlink ((int (*) __P((struct vop_symlink_args *)))kernfs_enotsupp) | |
613 | #define kernfs_readlink \ | |
614 | ((int (*) __P((struct vop_readlink_args *)))kernfs_enotsupp) | |
615 | #define kernfs_abortop ((int (*) __P((struct vop_abortop_args *)))nullop) | |
616 | #define kernfs_lock ((int (*) __P((struct vop_lock_args *)))nullop) | |
617 | #define kernfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop) | |
618 | #define kernfs_bmap ((int (*) __P((struct vop_bmap_args *)))kernfs_badop) | |
619 | #define kernfs_strategy ((int (*) __P((struct vop_strategy_args *)))kernfs_badop) | |
620 | #define kernfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop) | |
621 | #define kernfs_advlock ((int (*) __P((struct vop_advlock_args *)))kernfs_enotsupp) | |
622 | #define kernfs_blkatoff \ | |
623 | ((int (*) __P((struct vop_blkatoff_args *)))kernfs_enotsupp) | |
624 | #define kernfs_valloc ((int(*) __P(( \ | |
625 | struct vnode *pvp, \ | |
626 | int mode, \ | |
627 | struct ucred *cred, \ | |
628 | struct vnode **vpp))) kernfs_enotsupp) | |
629 | #define kernfs_truncate \ | |
630 | ((int (*) __P((struct vop_truncate_args *)))kernfs_enotsupp) | |
631 | #define kernfs_update ((int (*) __P((struct vop_update_args *)))kernfs_enotsupp) | |
632 | #define kernfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))kernfs_enotsupp) | |
633 | ||
634 | int (**kernfs_vnodeop_p)(); | |
635 | struct vnodeopv_entry_desc kernfs_vnodeop_entries[] = { | |
636 | { &vop_default_desc, vn_default_error }, | |
637 | { &vop_lookup_desc, kernfs_lookup }, /* lookup */ | |
638 | { &vop_create_desc, kernfs_create }, /* create */ | |
639 | { &vop_mknod_desc, kernfs_mknod }, /* mknod */ | |
640 | { &vop_open_desc, kernfs_open }, /* open */ | |
641 | { &vop_close_desc, kernfs_close }, /* close */ | |
642 | { &vop_access_desc, kernfs_access }, /* access */ | |
643 | { &vop_getattr_desc, kernfs_getattr }, /* getattr */ | |
644 | { &vop_setattr_desc, kernfs_setattr }, /* setattr */ | |
645 | { &vop_read_desc, kernfs_read }, /* read */ | |
646 | { &vop_write_desc, kernfs_write }, /* write */ | |
647 | { &vop_ioctl_desc, kernfs_ioctl }, /* ioctl */ | |
648 | { &vop_select_desc, kernfs_select }, /* select */ | |
649 | { &vop_mmap_desc, kernfs_mmap }, /* mmap */ | |
650 | { &vop_fsync_desc, kernfs_fsync }, /* fsync */ | |
651 | { &vop_seek_desc, kernfs_seek }, /* seek */ | |
652 | { &vop_remove_desc, kernfs_remove }, /* remove */ | |
653 | { &vop_link_desc, kernfs_link }, /* link */ | |
654 | { &vop_rename_desc, kernfs_rename }, /* rename */ | |
655 | { &vop_mkdir_desc, kernfs_mkdir }, /* mkdir */ | |
656 | { &vop_rmdir_desc, kernfs_rmdir }, /* rmdir */ | |
657 | { &vop_symlink_desc, kernfs_symlink }, /* symlink */ | |
658 | { &vop_readdir_desc, kernfs_readdir }, /* readdir */ | |
659 | { &vop_readlink_desc, kernfs_readlink }, /* readlink */ | |
660 | { &vop_abortop_desc, kernfs_abortop }, /* abortop */ | |
661 | { &vop_inactive_desc, kernfs_inactive }, /* inactive */ | |
662 | { &vop_reclaim_desc, kernfs_reclaim }, /* reclaim */ | |
663 | { &vop_lock_desc, kernfs_lock }, /* lock */ | |
664 | { &vop_unlock_desc, kernfs_unlock }, /* unlock */ | |
665 | { &vop_bmap_desc, kernfs_bmap }, /* bmap */ | |
666 | { &vop_strategy_desc, kernfs_strategy }, /* strategy */ | |
667 | { &vop_print_desc, kernfs_print }, /* print */ | |
668 | { &vop_islocked_desc, kernfs_islocked }, /* islocked */ | |
669 | { &vop_advlock_desc, kernfs_advlock }, /* advlock */ | |
670 | { &vop_blkatoff_desc, kernfs_blkatoff }, /* blkatoff */ | |
671 | { &vop_valloc_desc, kernfs_valloc }, /* valloc */ | |
672 | { &vop_vfree_desc, kernfs_vfree }, /* vfree */ | |
673 | { &vop_truncate_desc, kernfs_truncate }, /* truncate */ | |
674 | { &vop_update_desc, kernfs_update }, /* update */ | |
675 | { &vop_bwrite_desc, kernfs_bwrite }, /* bwrite */ | |
676 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } | |
677 | }; | |
678 | struct vnodeopv_desc kernfs_vnodeop_opv_desc = | |
679 | { &kernfs_vnodeop_p, kernfs_vnodeop_entries }; |