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pseudofs_vnops.c (341074) pseudofs_vnops.c (75295)
1/*-
1/*-
2 * Copyright (c) 2001 Dag-Erling Co��dan Sm��rgrav
2 * Copyright (c) 2001 Dag-Erling Co�dan Sm�rgrav
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.

--- 8 unchanged lines hidden (view full) ---

19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.

--- 8 unchanged lines hidden (view full) ---

19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/fs/pseudofs/pseudofs_vnops.c 75295 2001-04-07 19:51:12Z des $
27 */
28
29 */
30
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/sys/fs/pseudofs/pseudofs_vnops.c 341074 2018-11-27 16:51:18Z markj $");
31
32#include "opt_pseudofs.h"
33
34#include <sys/param.h>
35#include <sys/kernel.h>
36#include <sys/systm.h>
37#include <sys/ctype.h>
38#include <sys/dirent.h>
31#include <sys/param.h>
32#include <sys/kernel.h>
33#include <sys/systm.h>
34#include <sys/ctype.h>
35#include <sys/dirent.h>
39#include <sys/fcntl.h>
40#include <sys/limits.h>
41#include <sys/lock.h>
42#include <sys/malloc.h>
43#include <sys/mount.h>
36#include <sys/mount.h>
44#include <sys/mutex.h>
45#include <sys/namei.h>
46#include <sys/proc.h>
47#include <sys/sbuf.h>
48#include <sys/sx.h>
49#include <sys/sysctl.h>
50#include <sys/vnode.h>
51
52#include <fs/pseudofs/pseudofs.h>
53#include <fs/pseudofs/pseudofs_internal.h>
54
37#include <sys/namei.h>
38#include <sys/proc.h>
39#include <sys/sbuf.h>
40#include <sys/sx.h>
41#include <sys/sysctl.h>
42#include <sys/vnode.h>
43
44#include <fs/pseudofs/pseudofs.h>
45#include <fs/pseudofs/pseudofs_internal.h>
46
55#define KASSERT_PN_IS_DIR(pn) \
56 KASSERT((pn)->pn_type == pfstype_root || \
57 (pn)->pn_type == pfstype_dir || \
58 (pn)->pn_type == pfstype_procdir, \
59 ("%s(): VDIR vnode refers to non-directory pfs_node", __func__))
60
61#define KASSERT_PN_IS_FILE(pn) \
62 KASSERT((pn)->pn_type == pfstype_file, \
63 ("%s(): VREG vnode refers to non-file pfs_node", __func__))
64
65#define KASSERT_PN_IS_LINK(pn) \
66 KASSERT((pn)->pn_type == pfstype_symlink, \
67 ("%s(): VLNK vnode refers to non-link pfs_node", __func__))
68
69/*
47/*
70 * Returns the fileno, adjusted for target pid
71 */
72static uint32_t
73pn_fileno(struct pfs_node *pn, pid_t pid)
74{
75
76 KASSERT(pn->pn_fileno > 0,
77 ("%s(): no fileno allocated", __func__));
78 if (pid != NO_PID)
79 return (pn->pn_fileno * NO_PID + pid);
80 return (pn->pn_fileno);
81}
82
83/*
84 * Returns non-zero if given file is visible to given thread.
85 */
86static int
87pfs_visible_proc(struct thread *td, struct pfs_node *pn, struct proc *proc)
88{
89 int visible;
90
91 if (proc == NULL)
92 return (0);
93
94 PROC_LOCK_ASSERT(proc, MA_OWNED);
95
96 visible = ((proc->p_flag & P_WEXIT) == 0);
97 if (visible)
98 visible = (p_cansee(td, proc) == 0);
99 if (visible && pn->pn_vis != NULL)
100 visible = pn_vis(td, proc, pn);
101 if (!visible)
102 return (0);
103 return (1);
104}
105
106static int
107pfs_visible(struct thread *td, struct pfs_node *pn, pid_t pid,
108 bool allproc_locked, struct proc **p)
109{
110 struct proc *proc;
111
112 PFS_TRACE(("%s (pid: %d, req: %d)",
113 pn->pn_name, pid, td->td_proc->p_pid));
114
115 if (p)
116 *p = NULL;
117 if (pid == NO_PID)
118 PFS_RETURN (1);
119 proc = allproc_locked ? pfind_locked(pid) : pfind(pid);
120 if (proc == NULL)
121 PFS_RETURN (0);
122 if (pfs_visible_proc(td, pn, proc)) {
123 if (p)
124 *p = proc;
125 else
126 PROC_UNLOCK(proc);
127 PFS_RETURN (1);
128 }
129 PROC_UNLOCK(proc);
130 PFS_RETURN (0);
131}
132
133/*
134 * Verify permissions
135 */
136static int
137pfs_access(struct vop_access_args *va)
138{
139 struct vnode *vn = va->a_vp;
48 * Verify permissions
49 */
50static int
51pfs_access(struct vop_access_args *va)
52{
53 struct vnode *vn = va->a_vp;
140 struct pfs_vdata *pvd = vn->v_data;
141 struct vattr vattr;
142 int error;
54 struct vattr vattr;
55 int error;
143
144 PFS_TRACE(("%s", pvd->pvd_pn->pn_name));
145 (void)pvd;
146
147 error = VOP_GETATTR(vn, &vattr, va->a_cred);
56
57 error = VOP_GETATTR(vn, &vattr, va->a_cred, va->a_p);
148 if (error)
58 if (error)
149 PFS_RETURN (error);
59 return (error);
150 error = vaccess(vn->v_type, vattr.va_mode, vattr.va_uid,
60 error = vaccess(vn->v_type, vattr.va_mode, vattr.va_uid,
151 vattr.va_gid, va->a_accmode, va->a_cred, NULL);
152 PFS_RETURN (error);
61 vattr.va_gid, va->a_mode, va->a_cred, NULL);
62 return (error);
153}
154
155/*
156 * Close a file or directory
157 */
158static int
159pfs_close(struct vop_close_args *va)
160{
63}
64
65/*
66 * Close a file or directory
67 */
68static int
69pfs_close(struct vop_close_args *va)
70{
161 struct vnode *vn = va->a_vp;
162 struct pfs_vdata *pvd = vn->v_data;
163 struct pfs_node *pn = pvd->pvd_pn;
164 struct proc *proc;
165 int error;
166
167 PFS_TRACE(("%s", pn->pn_name));
168 pfs_assert_not_owned(pn);
169
170 /*
171 * Do nothing unless this is the last close and the node has a
172 * last-close handler.
173 */
174 if (vrefcnt(vn) > 1 || pn->pn_close == NULL)
175 PFS_RETURN (0);
176
177 if (pvd->pvd_pid != NO_PID) {
178 proc = pfind(pvd->pvd_pid);
179 } else {
180 proc = NULL;
181 }
182
183 error = pn_close(va->a_td, proc, pn);
184
185 if (proc != NULL)
186 PROC_UNLOCK(proc);
187
188 PFS_RETURN (error);
71 return (0);
189}
190
191/*
192 * Get file attributes
193 */
194static int
195pfs_getattr(struct vop_getattr_args *va)
196{
197 struct vnode *vn = va->a_vp;
72}
73
74/*
75 * Get file attributes
76 */
77static int
78pfs_getattr(struct vop_getattr_args *va)
79{
80 struct vnode *vn = va->a_vp;
198 struct pfs_vdata *pvd = vn->v_data;
199 struct pfs_node *pn = pvd->pvd_pn;
81 struct pfs_node *pn = (struct pfs_node *)vn->v_data;
200 struct vattr *vap = va->a_vap;
82 struct vattr *vap = va->a_vap;
201 struct proc *proc;
202 int error = 0;
203
83
204 PFS_TRACE(("%s", pn->pn_name));
205 pfs_assert_not_owned(pn);
206
207 if (!pfs_visible(curthread, pn, pvd->pvd_pid, false, &proc))
208 PFS_RETURN (ENOENT);
209
84 VATTR_NULL(vap);
210 vap->va_type = vn->v_type;
85 vap->va_type = vn->v_type;
211 vap->va_fileid = pn_fileno(pn, pvd->pvd_pid);
86 vap->va_mode = pn->pn_mode;
87 vap->va_fileid = pn->pn_fileno;
212 vap->va_flags = 0;
213 vap->va_blocksize = PAGE_SIZE;
214 vap->va_bytes = vap->va_size = 0;
88 vap->va_flags = 0;
89 vap->va_blocksize = PAGE_SIZE;
90 vap->va_bytes = vap->va_size = 0;
215 vap->va_filerev = 0;
216 vap->va_fsid = vn->v_mount->mnt_stat.f_fsid.val[0];
217 vap->va_nlink = 1;
218 nanotime(&vap->va_ctime);
219 vap->va_atime = vap->va_mtime = vap->va_ctime;
91 vap->va_fsid = vn->v_mount->mnt_stat.f_fsid.val[0];
92 vap->va_nlink = 1;
93 nanotime(&vap->va_ctime);
94 vap->va_atime = vap->va_mtime = vap->va_ctime;
95 vap->va_uid = pn->pn_uid;
96 vap->va_gid = pn->pn_gid;
220
97
221 switch (pn->pn_type) {
222 case pfstype_procdir:
223 case pfstype_root:
224 case pfstype_dir:
225#if 0
226 pfs_lock(pn);
227 /* compute link count */
228 pfs_unlock(pn);
229#endif
230 vap->va_mode = 0555;
231 break;
232 case pfstype_file:
233 case pfstype_symlink:
234 vap->va_mode = 0444;
235 break;
236 default:
237 printf("shouldn't be here!\n");
238 vap->va_mode = 0;
239 break;
240 }
241
242 if (proc != NULL) {
243 vap->va_uid = proc->p_ucred->cr_ruid;
244 vap->va_gid = proc->p_ucred->cr_rgid;
245 } else {
246 vap->va_uid = 0;
247 vap->va_gid = 0;
248 }
249
250 if (pn->pn_attr != NULL)
251 error = pn_attr(curthread, proc, pn, vap);
252
253 if(proc != NULL)
254 PROC_UNLOCK(proc);
255
256 PFS_RETURN (error);
98 return (0);
257}
258
259/*
99}
100
101/*
260 * Perform an ioctl
261 */
262static int
263pfs_ioctl(struct vop_ioctl_args *va)
264{
265 struct vnode *vn;
266 struct pfs_vdata *pvd;
267 struct pfs_node *pn;
268 struct proc *proc;
269 int error;
270
271 vn = va->a_vp;
272 vn_lock(vn, LK_SHARED | LK_RETRY);
273 if (vn->v_iflag & VI_DOOMED) {
274 VOP_UNLOCK(vn, 0);
275 return (EBADF);
276 }
277 pvd = vn->v_data;
278 pn = pvd->pvd_pn;
279
280 PFS_TRACE(("%s: %lx", pn->pn_name, va->a_command));
281 pfs_assert_not_owned(pn);
282
283 if (vn->v_type != VREG) {
284 VOP_UNLOCK(vn, 0);
285 PFS_RETURN (EINVAL);
286 }
287 KASSERT_PN_IS_FILE(pn);
288
289 if (pn->pn_ioctl == NULL) {
290 VOP_UNLOCK(vn, 0);
291 PFS_RETURN (ENOTTY);
292 }
293
294 /*
295 * This is necessary because process' privileges may
296 * have changed since the open() call.
297 */
298 if (!pfs_visible(curthread, pn, pvd->pvd_pid, false, &proc)) {
299 VOP_UNLOCK(vn, 0);
300 PFS_RETURN (EIO);
301 }
302
303 error = pn_ioctl(curthread, proc, pn, va->a_command, va->a_data);
304
305 if (proc != NULL)
306 PROC_UNLOCK(proc);
307
308 VOP_UNLOCK(vn, 0);
309 PFS_RETURN (error);
310}
311
312/*
313 * Perform getextattr
314 */
315static int
316pfs_getextattr(struct vop_getextattr_args *va)
317{
318 struct vnode *vn = va->a_vp;
319 struct pfs_vdata *pvd = vn->v_data;
320 struct pfs_node *pn = pvd->pvd_pn;
321 struct proc *proc;
322 int error;
323
324 PFS_TRACE(("%s", pn->pn_name));
325 pfs_assert_not_owned(pn);
326
327 /*
328 * This is necessary because either process' privileges may
329 * have changed since the open() call.
330 */
331 if (!pfs_visible(curthread, pn, pvd->pvd_pid, false, &proc))
332 PFS_RETURN (EIO);
333
334 if (pn->pn_getextattr == NULL)
335 error = EOPNOTSUPP;
336 else
337 error = pn_getextattr(curthread, proc, pn,
338 va->a_attrnamespace, va->a_name, va->a_uio,
339 va->a_size, va->a_cred);
340
341 if (proc != NULL)
342 PROC_UNLOCK(proc);
343
344 PFS_RETURN (error);
345}
346
347/*
348 * Convert a vnode to its component name
349 */
350static int
351pfs_vptocnp(struct vop_vptocnp_args *ap)
352{
353 struct vnode *vp = ap->a_vp;
354 struct vnode **dvp = ap->a_vpp;
355 struct pfs_vdata *pvd = vp->v_data;
356 struct pfs_node *pd = pvd->pvd_pn;
357 struct pfs_node *pn;
358 struct mount *mp;
359 char *buf = ap->a_buf;
360 int *buflen = ap->a_buflen;
361 char pidbuf[PFS_NAMELEN];
362 pid_t pid = pvd->pvd_pid;
363 int len, i, error, locked;
364
365 i = *buflen;
366 error = 0;
367
368 pfs_lock(pd);
369
370 if (vp->v_type == VDIR && pd->pn_type == pfstype_root) {
371 *dvp = vp;
372 vhold(*dvp);
373 pfs_unlock(pd);
374 PFS_RETURN (0);
375 } else if (vp->v_type == VDIR && pd->pn_type == pfstype_procdir) {
376 len = snprintf(pidbuf, sizeof(pidbuf), "%d", pid);
377 i -= len;
378 if (i < 0) {
379 error = ENOMEM;
380 goto failed;
381 }
382 bcopy(pidbuf, buf + i, len);
383 } else {
384 len = strlen(pd->pn_name);
385 i -= len;
386 if (i < 0) {
387 error = ENOMEM;
388 goto failed;
389 }
390 bcopy(pd->pn_name, buf + i, len);
391 }
392
393 pn = pd->pn_parent;
394 pfs_unlock(pd);
395
396 mp = vp->v_mount;
397 error = vfs_busy(mp, 0);
398 if (error)
399 return (error);
400
401 /*
402 * vp is held by caller.
403 */
404 locked = VOP_ISLOCKED(vp);
405 VOP_UNLOCK(vp, 0);
406
407 error = pfs_vncache_alloc(mp, dvp, pn, pid);
408 if (error) {
409 vn_lock(vp, locked | LK_RETRY);
410 vfs_unbusy(mp);
411 PFS_RETURN(error);
412 }
413
414 *buflen = i;
415 VOP_UNLOCK(*dvp, 0);
416 vn_lock(vp, locked | LK_RETRY);
417 vfs_unbusy(mp);
418
419 PFS_RETURN (0);
420failed:
421 pfs_unlock(pd);
422 PFS_RETURN(error);
423}
424
425/*
426 * Look up a file or directory
427 */
428static int
102 * Look up a file or directory
103 */
104static int
429pfs_lookup(struct vop_cachedlookup_args *va)
105pfs_lookup(struct vop_lookup_args *va)
430{
106{
431 struct vnode *vn = va->a_dvp;
107 struct vnode *dvp = va->a_dvp;
432 struct vnode **vpp = va->a_vpp;
433 struct componentname *cnp = va->a_cnp;
108 struct vnode **vpp = va->a_vpp;
109 struct componentname *cnp = va->a_cnp;
434 struct pfs_vdata *pvd = vn->v_data;
435 struct pfs_node *pd = pvd->pvd_pn;
436 struct pfs_node *pn, *pdn = NULL;
437 struct mount *mp;
438 pid_t pid = pvd->pvd_pid;
110#if 0
111 struct pfs_info *pi = (struct pfs_info *)dvp->v_mount->mnt_data;
112#endif
113 struct pfs_node *pd = (struct pfs_node *)dvp->v_data, *pn;
114 struct proc *p;
439 char *pname;
115 char *pname;
440 int error, i, namelen, visible;
116 int error, i;
117 pid_t pid;
441
118
442 PFS_TRACE(("%.*s", (int)cnp->cn_namelen, cnp->cn_nameptr));
443 pfs_assert_not_owned(pd);
119 if (dvp->v_type != VDIR)
120 return (ENOTDIR);
121
122 /* don't support CREATE, RENAME or DELETE */
123 if (cnp->cn_nameiop != LOOKUP)
124 return (EROFS);
444
125
445 if (vn->v_type != VDIR)
446 PFS_RETURN (ENOTDIR);
447 KASSERT_PN_IS_DIR(pd);
448
449 error = VOP_ACCESS(vn, VEXEC, cnp->cn_cred, cnp->cn_thread);
450 if (error)
451 PFS_RETURN (error);
452
453 /*
454 * Don't support DELETE or RENAME. CREATE is supported so
455 * that O_CREAT will work, but the lookup will still fail if
456 * the file does not exist.
457 */
458 if ((cnp->cn_flags & ISLASTCN) &&
459 (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
460 PFS_RETURN (EOPNOTSUPP);
461
462 /* shortcut: check if the name is too long */
126 /* shortcut */
463 if (cnp->cn_namelen >= PFS_NAMELEN)
127 if (cnp->cn_namelen >= PFS_NAMELEN)
464 PFS_RETURN (ENOENT);
465
466 /* check that parent directory is visible... */
467 if (!pfs_visible(curthread, pd, pvd->pvd_pid, false, NULL))
468 PFS_RETURN (ENOENT);
469
128 return (ENOENT);
129
470 /* self */
130 /* self */
471 namelen = cnp->cn_namelen;
472 pname = cnp->cn_nameptr;
131 pname = cnp->cn_nameptr;
473 if (namelen == 1 && pname[0] == '.') {
132 if (cnp->cn_namelen == 1 && *pname == '.') {
474 pn = pd;
133 pn = pd;
475 *vpp = vn;
476 VREF(vn);
477 PFS_RETURN (0);
134 *vpp = dvp;
135 VREF(dvp);
136 goto got_vnode;
478 }
479
137 }
138
480 mp = vn->v_mount;
481
482 /* parent */
483 if (cnp->cn_flags & ISDOTDOT) {
484 if (pd->pn_type == pfstype_root)
139 /* parent */
140 if (cnp->cn_flags & ISDOTDOT) {
141 if (pd->pn_type == pfstype_root)
485 PFS_RETURN (EIO);
486 error = vfs_busy(mp, MBF_NOWAIT);
487 if (error != 0) {
488 vfs_ref(mp);
489 VOP_UNLOCK(vn, 0);
490 error = vfs_busy(mp, 0);
491 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
492 vfs_rel(mp);
493 if (error != 0)
494 PFS_RETURN(ENOENT);
495 if (vn->v_iflag & VI_DOOMED) {
496 vfs_unbusy(mp);
497 PFS_RETURN(ENOENT);
498 }
499 }
500 VOP_UNLOCK(vn, 0);
501 KASSERT(pd->pn_parent != NULL,
502 ("%s(): non-root directory has no parent", __func__));
503 /*
504 * This one is tricky. Descendents of procdir nodes
505 * inherit their parent's process affinity, but
506 * there's no easy reverse mapping. For simplicity,
507 * we assume that if this node is a procdir, its
508 * parent isn't (which is correct as long as
509 * descendents of procdir nodes are never procdir
510 * nodes themselves)
511 */
512 if (pd->pn_type == pfstype_procdir)
513 pid = NO_PID;
514 pfs_lock(pd);
515 pn = pd->pn_parent;
516 pfs_unlock(pd);
517 goto got_pnode;
142 return (EIO);
143 KASSERT(pd->pn_parent, ("non-root directory has no parent"));
144 return pfs_vncache_alloc(dvp->v_mount, vpp, pd->pn_parent);
518 }
519
145 }
146
520 pfs_lock(pd);
521
522 /* named node */
523 for (pn = pd->pn_nodes; pn != NULL; pn = pn->pn_next)
524 if (pn->pn_type == pfstype_procdir)
525 pdn = pn;
526 else if (pn->pn_name[namelen] == '\0' &&
527 bcmp(pname, pn->pn_name, namelen) == 0) {
528 pfs_unlock(pd);
147 /* process dependent */
148 for (i = 0, pid = 0; i < cnp->cn_namelen && isdigit(pname[i]); ++i)
149 pid = pid * 10 + pname[i] - '0';
150 /* XXX assume that 8 digits is the maximum safe length for a pid */
151 if (i == cnp->cn_namelen && i < 8) {
152 /* see if this directory has process-dependent children */
153 for (pn = pd->pn_nodes; pn->pn_type; ++pn)
154 if (pn->pn_type == pfstype_procdep)
155 break;
156 if (pn->pn_type) {
157 /* XXX pfind(0) should DTRT here */
158 p = pid ? pfind(pid) : &proc0;
159 if (p == NULL)
160 return (ENOENT);
161 if (p_can(cnp->cn_proc, p, P_CAN_SEE, NULL))
162 /* pretend it doesn't exist */
163 return (ENOENT);
164#if 0
165 if (!pn->pn_shadow)
166 pfs_create_shadow(pn, p);
167 pn = pn->pn_shadow;
529 goto got_pnode;
168 goto got_pnode;
169#else
170 /* not yet implemented */
171 return (EIO);
172#endif
530 }
173 }
531
532 /* process dependent node */
533 if ((pn = pdn) != NULL) {
534 pid = 0;
535 for (pid = 0, i = 0; i < namelen && isdigit(pname[i]); ++i)
536 if ((pid = pid * 10 + pname[i] - '0') > PID_MAX)
174 }
175
176 /* something else */
177 for (pn = pd->pn_nodes; pn->pn_type; ++pn) {
178 for (i = 0; i < cnp->cn_namelen && pn->pn_name[i]; ++i)
179 if (pname[i] != pn->pn_name[i])
537 break;
180 break;
538 if (i == cnp->cn_namelen) {
539 pfs_unlock(pd);
181 if (i == cnp->cn_namelen)
540 goto got_pnode;
182 goto got_pnode;
541 }
542 }
543
183 }
184
544 pfs_unlock(pd);
545
546 PFS_RETURN (ENOENT);
547
185 return (ENOENT);
548 got_pnode:
186 got_pnode:
549 pfs_assert_not_owned(pd);
550 pfs_assert_not_owned(pn);
551 visible = pfs_visible(curthread, pn, pid, false, NULL);
552 if (!visible) {
553 error = ENOENT;
554 goto failed;
555 }
556
557 error = pfs_vncache_alloc(mp, vpp, pn, pid);
187 if (!pn->pn_parent)
188 pn->pn_parent = pd;
189 error = pfs_vncache_alloc(dvp->v_mount, vpp, pn);
558 if (error)
190 if (error)
559 goto failed;
560
561 if (cnp->cn_flags & ISDOTDOT) {
562 vfs_unbusy(mp);
563 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
564 if (vn->v_iflag & VI_DOOMED) {
565 vput(*vpp);
566 *vpp = NULL;
567 PFS_RETURN(ENOENT);
568 }
569 }
570 if (cnp->cn_flags & MAKEENTRY && !(vn->v_iflag & VI_DOOMED))
571 cache_enter(vn, *vpp, cnp);
572 PFS_RETURN (0);
573 failed:
574 if (cnp->cn_flags & ISDOTDOT) {
575 vfs_unbusy(mp);
576 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
577 *vpp = NULL;
578 }
579 PFS_RETURN(error);
191 return error;
192 got_vnode:
193 if (cnp->cn_flags & MAKEENTRY)
194 cache_enter(dvp, *vpp, cnp);
195 return (0);
580}
581
582/*
583 * Open a file or directory.
584 */
585static int
586pfs_open(struct vop_open_args *va)
587{
196}
197
198/*
199 * Open a file or directory.
200 */
201static int
202pfs_open(struct vop_open_args *va)
203{
588 struct vnode *vn = va->a_vp;
589 struct pfs_vdata *pvd = vn->v_data;
590 struct pfs_node *pn = pvd->pvd_pn;
591 int mode = va->a_mode;
592
593 PFS_TRACE(("%s (mode 0x%x)", pn->pn_name, mode));
594 pfs_assert_not_owned(pn);
595
596 /* check if the requested mode is permitted */
597 if (((mode & FREAD) && !(mode & PFS_RD)) ||
598 ((mode & FWRITE) && !(mode & PFS_WR)))
599 PFS_RETURN (EPERM);
600
601 /* we don't support locking */
602 if ((mode & O_SHLOCK) || (mode & O_EXLOCK))
603 PFS_RETURN (EOPNOTSUPP);
604
605 PFS_RETURN (0);
204 /* XXX */
205 return (0);
606}
607
608/*
609 * Read from a file
610 */
611static int
612pfs_read(struct vop_read_args *va)
613{
614 struct vnode *vn = va->a_vp;
206}
207
208/*
209 * Read from a file
210 */
211static int
212pfs_read(struct vop_read_args *va)
213{
214 struct vnode *vn = va->a_vp;
615 struct pfs_vdata *pvd = vn->v_data;
616 struct pfs_node *pn = pvd->pvd_pn;
215 struct pfs_node *pn = vn->v_data;
617 struct uio *uio = va->a_uio;
216 struct uio *uio = va->a_uio;
618 struct proc *proc;
619 struct sbuf *sb = NULL;
620 int error, locked;
621 off_t buflen;
217 struct sbuf sb;
218 char *ps;
219 int error, xlen;
622
220
623 PFS_TRACE(("%s", pn->pn_name));
624 pfs_assert_not_owned(pn);
625
626 if (vn->v_type != VREG)
221 if (vn->v_type != VREG)
627 PFS_RETURN (EINVAL);
628 KASSERT_PN_IS_FILE(pn);
222 return (EINVAL);
629
223
630 if (!(pn->pn_flags & PFS_RD))
631 PFS_RETURN (EBADF);
224 error = sbuf_new(&sb, NULL, uio->uio_offset + uio->uio_resid, 0);
225 if (error)
226 return (EIO);
632
227
633 if (pn->pn_fill == NULL)
634 PFS_RETURN (EIO);
635
636 /*
637 * This is necessary because either process' privileges may
638 * have changed since the open() call.
639 */
640 if (!pfs_visible(curthread, pn, pvd->pvd_pid, false, &proc))
641 PFS_RETURN (EIO);
642 if (proc != NULL) {
643 _PHOLD(proc);
644 PROC_UNLOCK(proc);
645 }
646
647 vhold(vn);
648 locked = VOP_ISLOCKED(vn);
649 VOP_UNLOCK(vn, 0);
650
651 if (pn->pn_flags & PFS_RAWRD) {
652 PFS_TRACE(("%zd resid", uio->uio_resid));
653 error = pn_fill(curthread, proc, pn, NULL, uio);
654 PFS_TRACE(("%zd resid", uio->uio_resid));
655 goto ret;
656 }
657
658 if (uio->uio_resid < 0 || uio->uio_offset < 0 ||
659 uio->uio_resid > OFF_MAX - uio->uio_offset) {
660 error = EINVAL;
661 goto ret;
662 }
663 buflen = uio->uio_offset + uio->uio_resid;
664 if (buflen > MAXPHYS)
665 buflen = MAXPHYS;
666
667 sb = sbuf_new(sb, NULL, buflen + 1, 0);
668 if (sb == NULL) {
669 error = EIO;
670 goto ret;
671 }
672
673 error = pn_fill(curthread, proc, pn, sb, uio);
674
675 if (error) {
676 sbuf_delete(sb);
677 goto ret;
678 }
679
680 /*
681 * XXX: If the buffer overflowed, sbuf_len() will not return
682 * the data length. Then just use the full length because an
683 * overflowed sbuf must be full.
684 */
685 if (sbuf_finish(sb) == 0)
686 buflen = sbuf_len(sb);
687 error = uiomove_frombuf(sbuf_data(sb), buflen, uio);
688 sbuf_delete(sb);
689ret:
690 vn_lock(vn, locked | LK_RETRY);
691 vdrop(vn);
692 if (proc != NULL)
693 PRELE(proc);
694 PFS_RETURN (error);
228 error = (pn->pn_func)(pn, curproc, &sb);
229
230 /* XXX we should possibly detect and handle overflows */
231 sbuf_finish(&sb);
232 ps = sbuf_data(&sb) + uio->uio_offset;
233 xlen = sbuf_len(&sb) - uio->uio_offset;
234 xlen = imin(xlen, uio->uio_resid);
235 error = (xlen <= 0 ? 0 : uiomove(ps, xlen, uio));
236 sbuf_delete(&sb);
237 return (error);
695}
696
697/*
238}
239
240/*
698 * Iterate through directory entries
699 */
700static int
701pfs_iterate(struct thread *td, struct proc *proc, struct pfs_node *pd,
702 struct pfs_node **pn, struct proc **p)
703{
704 int visible;
705
706 sx_assert(&allproc_lock, SX_SLOCKED);
707 pfs_assert_owned(pd);
708 again:
709 if (*pn == NULL) {
710 /* first node */
711 *pn = pd->pn_nodes;
712 } else if ((*pn)->pn_type != pfstype_procdir) {
713 /* next node */
714 *pn = (*pn)->pn_next;
715 }
716 if (*pn != NULL && (*pn)->pn_type == pfstype_procdir) {
717 /* next process */
718 if (*p == NULL)
719 *p = LIST_FIRST(&allproc);
720 else
721 *p = LIST_NEXT(*p, p_list);
722 /* out of processes: next node */
723 if (*p == NULL)
724 *pn = (*pn)->pn_next;
725 else
726 PROC_LOCK(*p);
727 }
728
729 if ((*pn) == NULL)
730 return (-1);
731
732 if (*p != NULL) {
733 visible = pfs_visible_proc(td, *pn, *p);
734 PROC_UNLOCK(*p);
735 } else if (proc != NULL) {
736 visible = pfs_visible_proc(td, *pn, proc);
737 } else {
738 visible = 1;
739 }
740 if (!visible)
741 goto again;
742
743 return (0);
744}
745
746/* Directory entry list */
747struct pfsentry {
748 STAILQ_ENTRY(pfsentry) link;
749 struct dirent entry;
750};
751STAILQ_HEAD(pfsdirentlist, pfsentry);
752
753/*
754 * Return directory entries.
755 */
756static int
757pfs_readdir(struct vop_readdir_args *va)
758{
759 struct vnode *vn = va->a_vp;
241 * Return directory entries.
242 */
243static int
244pfs_readdir(struct vop_readdir_args *va)
245{
246 struct vnode *vn = va->a_vp;
760 struct pfs_vdata *pvd = vn->v_data;
761 struct pfs_node *pd = pvd->pvd_pn;
762 pid_t pid = pvd->pvd_pid;
763 struct proc *p, *proc;
764 struct pfs_node *pn;
247 struct pfs_info *pi;
248 struct pfs_node *pd, *pn;
249 struct dirent entry;
765 struct uio *uio;
250 struct uio *uio;
766 struct pfsentry *pfsent, *pfsent2;
767 struct pfsdirentlist lst;
251#if 0
252 struct proc *p;
253#endif
768 off_t offset;
769 int error, i, resid;
770
254 off_t offset;
255 int error, i, resid;
256
771 STAILQ_INIT(&lst);
772 error = 0;
773 KASSERT(pd->pn_info == vn->v_mount->mnt_data,
774 ("%s(): pn_info does not match mountpoint", __func__));
775 PFS_TRACE(("%s pid %lu", pd->pn_name, (unsigned long)pid));
776 pfs_assert_not_owned(pd);
777
778 if (vn->v_type != VDIR)
257 if (vn->v_type != VDIR)
779 PFS_RETURN (ENOTDIR);
780 KASSERT_PN_IS_DIR(pd);
258 return (ENOTDIR);
259 pi = (struct pfs_info *)vn->v_mount->mnt_data;
260 pd = (struct pfs_node *)vn->v_data;
261 pn = pd->pn_nodes;
781 uio = va->a_uio;
782
783 /* only allow reading entire entries */
784 offset = uio->uio_offset;
785 resid = uio->uio_resid;
262 uio = va->a_uio;
263
264 /* only allow reading entire entries */
265 offset = uio->uio_offset;
266 resid = uio->uio_resid;
786 if (offset < 0 || offset % PFS_DELEN != 0 ||
787 (resid && resid < PFS_DELEN))
788 PFS_RETURN (EINVAL);
789 if (resid == 0)
790 PFS_RETURN (0);
267 if (offset < 0 || offset % PFS_DELEN != 0 || resid < PFS_DELEN)
268 return (EINVAL);
791
269
792 sx_slock(&allproc_lock);
793 pfs_lock(pd);
794
795 /* check if the directory is visible to the caller */
796 if (!pfs_visible(curthread, pd, pid, true, &proc)) {
797 sx_sunlock(&allproc_lock);
798 pfs_unlock(pd);
799 PFS_RETURN (ENOENT);
800 }
801 KASSERT(pid == NO_PID || proc != NULL,
802 ("%s(): no process for pid %lu", __func__, (unsigned long)pid));
803
804 /* skip unwanted entries */
270 /* skip unwanted entries */
805 for (pn = NULL, p = NULL; offset > 0; offset -= PFS_DELEN) {
806 if (pfs_iterate(curthread, proc, pd, &pn, &p) == -1) {
807 /* nothing left... */
808 if (proc != NULL)
809 PROC_UNLOCK(proc);
810 pfs_unlock(pd);
811 sx_sunlock(&allproc_lock);
812 PFS_RETURN (0);
813 }
814 }
271 for (; pn->pn_type && offset > 0; ++pn, offset -= PFS_DELEN)
272 /* nothing */ ;
815
816 /* fill in entries */
273
274 /* fill in entries */
817 while (pfs_iterate(curthread, proc, pd, &pn, &p) != -1 &&
818 resid >= PFS_DELEN) {
819 if ((pfsent = malloc(sizeof(struct pfsentry), M_IOV,
820 M_NOWAIT | M_ZERO)) == NULL) {
821 error = ENOMEM;
822 break;
823 }
824 pfsent->entry.d_reclen = PFS_DELEN;
825 pfsent->entry.d_fileno = pn_fileno(pn, pid);
275 entry.d_reclen = PFS_DELEN;
276 for (; pn->pn_type && resid > 0; ++pn) {
277 if (!pn->pn_parent)
278 pn->pn_parent = pd;
279 if (!pn->pn_fileno)
280 pfs_fileno_alloc(pi, pn);
281 entry.d_fileno = pn->pn_fileno;
826 /* PFS_DELEN was picked to fit PFS_NAMLEN */
827 for (i = 0; i < PFS_NAMELEN - 1 && pn->pn_name[i] != '\0'; ++i)
282 /* PFS_DELEN was picked to fit PFS_NAMLEN */
283 for (i = 0; i < PFS_NAMELEN - 1 && pn->pn_name[i] != '\0'; ++i)
828 pfsent->entry.d_name[i] = pn->pn_name[i];
829 pfsent->entry.d_namlen = i;
284 entry.d_name[i] = pn->pn_name[i];
285 entry.d_name[i] = 0;
286 entry.d_namlen = i;
830 switch (pn->pn_type) {
287 switch (pn->pn_type) {
831 case pfstype_procdir:
832 KASSERT(p != NULL,
833 ("reached procdir node with p == NULL"));
834 pfsent->entry.d_namlen = snprintf(pfsent->entry.d_name,
835 PFS_NAMELEN, "%d", p->p_pid);
836 /* fall through */
837 case pfstype_root:
838 case pfstype_dir:
839 case pfstype_this:
840 case pfstype_parent:
288 case pfstype_root:
289 case pfstype_dir:
290 case pfstype_this:
291 case pfstype_parent:
841 pfsent->entry.d_type = DT_DIR;
292 entry.d_type = DT_DIR;
842 break;
843 case pfstype_file:
293 break;
294 case pfstype_file:
844 pfsent->entry.d_type = DT_REG;
295 entry.d_type = DT_REG;
845 break;
846 case pfstype_symlink:
296 break;
297 case pfstype_symlink:
847 pfsent->entry.d_type = DT_LNK;
298 entry.d_type = DT_LNK;
848 break;
299 break;
300 case pfstype_procdep:
301 /* don't handle process-dependent nodes here */
302 continue;
849 default:
850 panic("%s has unexpected node type: %d", pn->pn_name, pn->pn_type);
851 }
303 default:
304 panic("%s has unexpected node type: %d", pn->pn_name, pn->pn_type);
305 }
852 PFS_TRACE(("%s", pfsent->entry.d_name));
853 dirent_terminate(&pfsent->entry);
854 STAILQ_INSERT_TAIL(&lst, pfsent, link);
306 if ((error = uiomove((caddr_t)&entry, PFS_DELEN, uio)))
307 return (error);
855 offset += PFS_DELEN;
856 resid -= PFS_DELEN;
857 }
308 offset += PFS_DELEN;
309 resid -= PFS_DELEN;
310 }
858 if (proc != NULL)
859 PROC_UNLOCK(proc);
860 pfs_unlock(pd);
861 sx_sunlock(&allproc_lock);
862 i = 0;
863 STAILQ_FOREACH_SAFE(pfsent, &lst, link, pfsent2) {
864 if (error == 0)
865 error = uiomove(&pfsent->entry, PFS_DELEN, uio);
866 free(pfsent, M_IOV);
867 i++;
311#if 0
312 for (pn = pd->pn_nodes; pn->pn_type && resid > 0; ++pn) {
313 if (pn->pn_type != pfstype_procdep)
314 continue;
315
316 sx_slock(&allproc_lock);
317 p = LIST_FIRST(&allproc);
318
319 sx_sunlock(&allproc_lock);
320 offset += PFS_DELEN;
321 resid -= PFS_DELEN;
322 break;
868 }
323 }
869 PFS_TRACE(("%d bytes", i * PFS_DELEN));
870 PFS_RETURN (error);
324#endif
325
326 uio->uio_offset += offset;
327 return (0);
871}
872
873/*
874 * Read a symbolic link
875 */
876static int
877pfs_readlink(struct vop_readlink_args *va)
878{
879 struct vnode *vn = va->a_vp;
328}
329
330/*
331 * Read a symbolic link
332 */
333static int
334pfs_readlink(struct vop_readlink_args *va)
335{
336 struct vnode *vn = va->a_vp;
880 struct pfs_vdata *pvd = vn->v_data;
881 struct pfs_node *pn = pvd->pvd_pn;
337 struct pfs_node *pn = vn->v_data;
882 struct uio *uio = va->a_uio;
338 struct uio *uio = va->a_uio;
883 struct proc *proc = NULL;
884 char buf[PATH_MAX];
339 char buf[MAXPATHLEN], *ps;
885 struct sbuf sb;
340 struct sbuf sb;
886 int error, locked;
341 int error, xlen;
887
342
888 PFS_TRACE(("%s", pn->pn_name));
889 pfs_assert_not_owned(pn);
890
891 if (vn->v_type != VLNK)
343 if (vn->v_type != VLNK)
892 PFS_RETURN (EINVAL);
893 KASSERT_PN_IS_LINK(pn);
344 return (EINVAL);
894
345
895 if (pn->pn_fill == NULL)
896 PFS_RETURN (EIO);
897
898 if (pvd->pvd_pid != NO_PID) {
899 if ((proc = pfind(pvd->pvd_pid)) == NULL)
900 PFS_RETURN (EIO);
901 if (proc->p_flag & P_WEXIT) {
902 PROC_UNLOCK(proc);
903 PFS_RETURN (EIO);
904 }
905 _PHOLD(proc);
906 PROC_UNLOCK(proc);
907 }
908 vhold(vn);
909 locked = VOP_ISLOCKED(vn);
910 VOP_UNLOCK(vn, 0);
911
912 /* sbuf_new() can't fail with a static buffer */
913 sbuf_new(&sb, buf, sizeof buf, 0);
914
346 /* sbuf_new() can't fail with a static buffer */
347 sbuf_new(&sb, buf, sizeof buf, 0);
348
915 error = pn_fill(curthread, proc, pn, &sb, NULL);
916
917 if (proc != NULL)
918 PRELE(proc);
919 vn_lock(vn, locked | LK_RETRY);
920 vdrop(vn);
921
922 if (error) {
923 sbuf_delete(&sb);
924 PFS_RETURN (error);
925 }
926
927 if (sbuf_finish(&sb) != 0) {
928 sbuf_delete(&sb);
929 PFS_RETURN (ENAMETOOLONG);
930 }
931
932 error = uiomove_frombuf(sbuf_data(&sb), sbuf_len(&sb), uio);
349 error = (pn->pn_func)(pn, curproc, &sb);
350
351 /* XXX we should detect and handle overflows */
352 sbuf_finish(&sb);
353 ps = sbuf_data(&sb) + uio->uio_offset;
354 xlen = sbuf_len(&sb) - uio->uio_offset;
355 xlen = imin(xlen, uio->uio_resid);
356 error = (xlen <= 0 ? 0 : uiomove(ps, xlen, uio));
933 sbuf_delete(&sb);
357 sbuf_delete(&sb);
934 PFS_RETURN (error);
358 return (error);
935}
936
937/*
938 * Reclaim a vnode
939 */
940static int
941pfs_reclaim(struct vop_reclaim_args *va)
942{
359}
360
361/*
362 * Reclaim a vnode
363 */
364static int
365pfs_reclaim(struct vop_reclaim_args *va)
366{
943 struct vnode *vn = va->a_vp;
944 struct pfs_vdata *pvd = vn->v_data;
945 struct pfs_node *pn = pvd->pvd_pn;
946
947 PFS_TRACE(("%s", pn->pn_name));
948 pfs_assert_not_owned(pn);
949
950 return (pfs_vncache_free(va->a_vp));
951}
952
953/*
954 * Set attributes
955 */
956static int
957pfs_setattr(struct vop_setattr_args *va)
958{
367 return (pfs_vncache_free(va->a_vp));
368}
369
370/*
371 * Set attributes
372 */
373static int
374pfs_setattr(struct vop_setattr_args *va)
375{
959 struct vnode *vn = va->a_vp;
960 struct pfs_vdata *pvd = vn->v_data;
961 struct pfs_node *pn = pvd->pvd_pn;
962
963 PFS_TRACE(("%s", pn->pn_name));
964 pfs_assert_not_owned(pn);
965
966 PFS_RETURN (EOPNOTSUPP);
376 if (va->a_vap->va_flags != VNOVAL)
377 return (EOPNOTSUPP);
378 return (0);
967}
968
969/*
379}
380
381/*
970 * Write to a file
382 * Dummy operations
971 */
383 */
972static int
973pfs_write(struct vop_write_args *va)
974{
975 struct vnode *vn = va->a_vp;
976 struct pfs_vdata *pvd = vn->v_data;
977 struct pfs_node *pn = pvd->pvd_pn;
978 struct uio *uio = va->a_uio;
979 struct proc *proc;
980 struct sbuf sb;
981 int error;
384static int pfs_erofs(void *va) { return (EROFS); }
385static int pfs_null(void *va) { return (0); }
982
386
983 PFS_TRACE(("%s", pn->pn_name));
984 pfs_assert_not_owned(pn);
985
986 if (vn->v_type != VREG)
987 PFS_RETURN (EINVAL);
988 KASSERT_PN_IS_FILE(pn);
989
990 if (!(pn->pn_flags & PFS_WR))
991 PFS_RETURN (EBADF);
992
993 if (pn->pn_fill == NULL)
994 PFS_RETURN (EIO);
995
996 /*
997 * This is necessary because either process' privileges may
998 * have changed since the open() call.
999 */
1000 if (!pfs_visible(curthread, pn, pvd->pvd_pid, false, &proc))
1001 PFS_RETURN (EIO);
1002 if (proc != NULL) {
1003 _PHOLD(proc);
1004 PROC_UNLOCK(proc);
1005 }
1006
1007 if (pn->pn_flags & PFS_RAWWR) {
1008 error = pn_fill(curthread, proc, pn, NULL, uio);
1009 if (proc != NULL)
1010 PRELE(proc);
1011 PFS_RETURN (error);
1012 }
1013
1014 sbuf_uionew(&sb, uio, &error);
1015 if (error) {
1016 if (proc != NULL)
1017 PRELE(proc);
1018 PFS_RETURN (error);
1019 }
1020
1021 error = pn_fill(curthread, proc, pn, &sb, uio);
1022
1023 sbuf_delete(&sb);
1024 if (proc != NULL)
1025 PRELE(proc);
1026 PFS_RETURN (error);
1027}
1028
1029/*
1030 * Vnode operations
1031 */
387/*
388 * Vnode operations
389 */
1032struct vop_vector pfs_vnodeops = {
1033 .vop_default = &default_vnodeops,
1034
1035 .vop_access = pfs_access,
1036 .vop_cachedlookup = pfs_lookup,
1037 .vop_close = pfs_close,
1038 .vop_create = VOP_EOPNOTSUPP,
1039 .vop_getattr = pfs_getattr,
1040 .vop_getextattr = pfs_getextattr,
1041 .vop_ioctl = pfs_ioctl,
1042 .vop_link = VOP_EOPNOTSUPP,
1043 .vop_lookup = vfs_cache_lookup,
1044 .vop_mkdir = VOP_EOPNOTSUPP,
1045 .vop_mknod = VOP_EOPNOTSUPP,
1046 .vop_open = pfs_open,
1047 .vop_read = pfs_read,
1048 .vop_readdir = pfs_readdir,
1049 .vop_readlink = pfs_readlink,
1050 .vop_reclaim = pfs_reclaim,
1051 .vop_remove = VOP_EOPNOTSUPP,
1052 .vop_rename = VOP_EOPNOTSUPP,
1053 .vop_rmdir = VOP_EOPNOTSUPP,
1054 .vop_setattr = pfs_setattr,
1055 .vop_symlink = VOP_EOPNOTSUPP,
1056 .vop_vptocnp = pfs_vptocnp,
1057 .vop_write = pfs_write,
1058 /* XXX I've probably forgotten a few that need VOP_EOPNOTSUPP */
390vop_t **pfs_vnodeop_p;
391static struct vnodeopv_entry_desc pfs_vnodeop_entries[] = {
392 { &vop_default_desc, (vop_t *)vop_defaultop },
393 { &vop_access_desc, (vop_t *)pfs_access },
394 { &vop_close_desc, (vop_t *)pfs_close },
395 { &vop_create_desc, (vop_t *)pfs_erofs },
396 { &vop_getattr_desc, (vop_t *)pfs_getattr },
397 { &vop_link_desc, (vop_t *)pfs_erofs },
398 { &vop_lookup_desc, (vop_t *)pfs_lookup },
399 { &vop_mkdir_desc, (vop_t *)pfs_erofs },
400 { &vop_open_desc, (vop_t *)pfs_open },
401 { &vop_read_desc, (vop_t *)pfs_read },
402 { &vop_readdir_desc, (vop_t *)pfs_readdir },
403 { &vop_readlink_desc, (vop_t *)pfs_readlink },
404 { &vop_reclaim_desc, (vop_t *)pfs_reclaim },
405 { &vop_remove_desc, (vop_t *)pfs_erofs },
406 { &vop_rename_desc, (vop_t *)pfs_erofs },
407 { &vop_rmdir_desc, (vop_t *)pfs_erofs },
408 { &vop_setattr_desc, (vop_t *)pfs_setattr },
409 { &vop_symlink_desc, (vop_t *)pfs_erofs },
410 { &vop_write_desc, (vop_t *)pfs_erofs },
411 /* XXX I've probably forgotten a few that need pfs_erofs */
412 { NULL, (vop_t *)NULL }
1059};
413};
414
415static struct vnodeopv_desc pfs_vnodeop_opv_desc =
416 { &pfs_vnodeop_p, pfs_vnodeop_entries };
417
418VNODEOP_SET(pfs_vnodeop_opv_desc);
419