2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001 Dag-Erling Smørgrav
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer
12 * in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 #include "opt_pseudofs.h"
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>
39 #include <sys/fcntl.h>
40 #include <sys/limits.h>
42 #include <sys/malloc.h>
43 #include <sys/mount.h>
44 #include <sys/mutex.h>
45 #include <sys/namei.h>
49 #include <sys/sysctl.h>
50 #include <sys/vnode.h>
52 #include <fs/pseudofs/pseudofs.h>
53 #include <fs/pseudofs/pseudofs_internal.h>
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__))
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__))
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__))
69 #define PFS_MAXBUFSIZ 1024 * 1024
72 * Returns the fileno, adjusted for target pid
75 pn_fileno(struct pfs_node *pn, pid_t pid)
78 KASSERT(pn->pn_fileno > 0,
79 ("%s(): no fileno allocated", __func__));
81 return (pn->pn_fileno * NO_PID + pid);
82 return (pn->pn_fileno);
86 * Returns non-zero if given file is visible to given thread.
89 pfs_visible_proc(struct thread *td, struct pfs_node *pn, struct proc *proc)
95 PROC_LOCK_ASSERT(proc, MA_OWNED);
97 if ((proc->p_flag & P_WEXIT) != 0)
99 if (p_cansee(td, proc) != 0)
101 return (pn_vis(td, proc, pn));
105 pfs_visible(struct thread *td, struct pfs_node *pn, pid_t pid,
110 PFS_TRACE(("%s (pid: %d, req: %d)",
111 pn->pn_name, pid, td->td_proc->p_pid));
116 PFS_RETURN (pn_vis(td, NULL, pn));
120 if (pfs_visible_proc(td, pn, proc)) {
132 pfs_lookup_proc(pid_t pid, struct proc **p)
139 if ((proc->p_flag & P_WEXIT) != 0) {
153 pfs_access(struct vop_access_args *va)
155 struct vnode *vn = va->a_vp;
156 struct pfs_vdata *pvd = vn->v_data;
160 PFS_TRACE(("%s", pvd->pvd_pn->pn_name));
163 error = VOP_GETATTR(vn, &vattr, va->a_cred);
166 error = vaccess(vn->v_type, vattr.va_mode, vattr.va_uid, vattr.va_gid,
167 va->a_accmode, va->a_cred);
172 * Close a file or directory
175 pfs_close(struct vop_close_args *va)
177 struct vnode *vn = va->a_vp;
178 struct pfs_vdata *pvd = vn->v_data;
179 struct pfs_node *pn = pvd->pvd_pn;
183 PFS_TRACE(("%s", pn->pn_name));
184 pfs_assert_not_owned(pn);
187 * Do nothing unless this is the last close and the node has a
188 * last-close handler.
190 if (vrefcnt(vn) > 1 || pn->pn_close == NULL)
193 if (pvd->pvd_pid != NO_PID) {
194 proc = pfind(pvd->pvd_pid);
199 error = pn_close(va->a_td, proc, pn);
208 * Get file attributes
211 pfs_getattr(struct vop_getattr_args *va)
213 struct vnode *vn = va->a_vp;
214 struct pfs_vdata *pvd = vn->v_data;
215 struct pfs_node *pn = pvd->pvd_pn;
216 struct vattr *vap = va->a_vap;
220 PFS_TRACE(("%s", pn->pn_name));
221 pfs_assert_not_owned(pn);
223 if (!pfs_visible(curthread, pn, pvd->pvd_pid, &proc))
226 vap->va_type = vn->v_type;
227 vap->va_fileid = pn_fileno(pn, pvd->pvd_pid);
229 vap->va_blocksize = PAGE_SIZE;
230 vap->va_bytes = vap->va_size = 0;
232 vap->va_fsid = vn->v_mount->mnt_stat.f_fsid.val[0];
234 nanotime(&vap->va_ctime);
235 vap->va_atime = vap->va_mtime = vap->va_ctime;
237 switch (pn->pn_type) {
238 case pfstype_procdir:
243 /* compute link count */
249 case pfstype_symlink:
253 printf("shouldn't be here!\n");
259 vap->va_uid = proc->p_ucred->cr_ruid;
260 vap->va_gid = proc->p_ucred->cr_rgid;
266 if (pn->pn_attr != NULL)
267 error = pn_attr(curthread, proc, pn, vap);
279 pfs_ioctl(struct vop_ioctl_args *va)
282 struct pfs_vdata *pvd;
288 vn_lock(vn, LK_SHARED | LK_RETRY);
289 if (VN_IS_DOOMED(vn)) {
296 PFS_TRACE(("%s: %lx", pn->pn_name, va->a_command));
297 pfs_assert_not_owned(pn);
299 if (vn->v_type != VREG) {
303 KASSERT_PN_IS_FILE(pn);
305 if (pn->pn_ioctl == NULL) {
311 * This is necessary because process' privileges may
312 * have changed since the open() call.
314 if (!pfs_visible(curthread, pn, pvd->pvd_pid, &proc)) {
319 error = pn_ioctl(curthread, proc, pn, va->a_command, va->a_data);
332 pfs_getextattr(struct vop_getextattr_args *va)
334 struct vnode *vn = va->a_vp;
335 struct pfs_vdata *pvd = vn->v_data;
336 struct pfs_node *pn = pvd->pvd_pn;
340 PFS_TRACE(("%s", pn->pn_name));
341 pfs_assert_not_owned(pn);
344 * This is necessary because either process' privileges may
345 * have changed since the open() call.
347 if (!pfs_visible(curthread, pn, pvd->pvd_pid, &proc))
350 if (pn->pn_getextattr == NULL)
353 error = pn_getextattr(curthread, proc, pn,
354 va->a_attrnamespace, va->a_name, va->a_uio,
355 va->a_size, va->a_cred);
364 * Convert a vnode to its component name
367 pfs_vptocnp(struct vop_vptocnp_args *ap)
369 struct vnode *vp = ap->a_vp;
370 struct vnode **dvp = ap->a_vpp;
371 struct pfs_vdata *pvd = vp->v_data;
372 struct pfs_node *pd = pvd->pvd_pn;
375 char *buf = ap->a_buf;
376 size_t *buflen = ap->a_buflen;
377 char pidbuf[PFS_NAMELEN];
378 pid_t pid = pvd->pvd_pid;
379 int len, i, error, locked;
386 if (vp->v_type == VDIR && pd->pn_type == pfstype_root) {
391 } else if (vp->v_type == VDIR && pd->pn_type == pfstype_procdir) {
392 len = snprintf(pidbuf, sizeof(pidbuf), "%d", pid);
398 bcopy(pidbuf, buf + i, len);
400 len = strlen(pd->pn_name);
406 bcopy(pd->pn_name, buf + i, len);
413 error = vfs_busy(mp, 0);
418 * vp is held by caller.
420 locked = VOP_ISLOCKED(vp);
423 error = pfs_vncache_alloc(mp, dvp, pn, pid);
425 vn_lock(vp, locked | LK_RETRY);
432 vn_lock(vp, locked | LK_RETRY);
442 * Look up a file or directory
445 pfs_lookup(struct vop_cachedlookup_args *va)
447 struct vnode *vn = va->a_dvp;
448 struct vnode **vpp = va->a_vpp;
449 struct componentname *cnp = va->a_cnp;
450 struct pfs_vdata *pvd = vn->v_data;
451 struct pfs_node *pd = pvd->pvd_pn;
452 struct pfs_node *pn, *pdn = NULL;
454 pid_t pid = pvd->pvd_pid;
456 int error, i, namelen, visible;
458 PFS_TRACE(("%.*s", (int)cnp->cn_namelen, cnp->cn_nameptr));
459 pfs_assert_not_owned(pd);
461 if (vn->v_type != VDIR)
462 PFS_RETURN (ENOTDIR);
463 KASSERT_PN_IS_DIR(pd);
466 * Don't support DELETE or RENAME. CREATE is supported so
467 * that O_CREAT will work, but the lookup will still fail if
468 * the file does not exist.
470 if ((cnp->cn_flags & ISLASTCN) &&
471 (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
472 PFS_RETURN (EOPNOTSUPP);
474 /* shortcut: check if the name is too long */
475 if (cnp->cn_namelen >= PFS_NAMELEN)
478 /* check that parent directory is visible... */
479 if (!pfs_visible(curthread, pd, pvd->pvd_pid, NULL))
483 namelen = cnp->cn_namelen;
484 pname = cnp->cn_nameptr;
485 if (namelen == 1 && pname[0] == '.') {
495 if (cnp->cn_flags & ISDOTDOT) {
496 if (pd->pn_type == pfstype_root)
498 error = vfs_busy(mp, MBF_NOWAIT);
502 error = vfs_busy(mp, 0);
503 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
507 if (VN_IS_DOOMED(vn)) {
513 KASSERT(pd->pn_parent != NULL,
514 ("%s(): non-root directory has no parent", __func__));
516 * This one is tricky. Descendents of procdir nodes
517 * inherit their parent's process affinity, but
518 * there's no easy reverse mapping. For simplicity,
519 * we assume that if this node is a procdir, its
520 * parent isn't (which is correct as long as
521 * descendents of procdir nodes are never procdir
524 if (pd->pn_type == pfstype_procdir)
535 for (pn = pd->pn_nodes; pn != NULL; pn = pn->pn_next)
536 if (pn->pn_type == pfstype_procdir)
538 else if (strncmp(pname, pn->pn_name, namelen) == 0 &&
539 pn->pn_name[namelen] == '\0') {
544 /* process dependent node */
545 if ((pn = pdn) != NULL) {
547 for (pid = 0, i = 0; i < namelen && isdigit(pname[i]); ++i)
548 if ((pid = pid * 10 + pname[i] - '0') > PID_MAX)
550 if (i == cnp->cn_namelen) {
561 pfs_assert_not_owned(pd);
562 pfs_assert_not_owned(pn);
563 visible = pfs_visible(curthread, pn, pid, NULL);
569 error = pfs_vncache_alloc(mp, vpp, pn, pid);
573 if (cnp->cn_flags & ISDOTDOT) {
575 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
576 if (VN_IS_DOOMED(vn)) {
582 if (cnp->cn_flags & MAKEENTRY && !VN_IS_DOOMED(vn))
583 cache_enter(vn, *vpp, cnp);
586 if (cnp->cn_flags & ISDOTDOT) {
588 vn_lock(vn, LK_EXCLUSIVE | LK_RETRY);
595 * Open a file or directory.
598 pfs_open(struct vop_open_args *va)
600 struct vnode *vn = va->a_vp;
601 struct pfs_vdata *pvd = vn->v_data;
602 struct pfs_node *pn = pvd->pvd_pn;
603 int mode = va->a_mode;
605 PFS_TRACE(("%s (mode 0x%x)", pn->pn_name, mode));
606 pfs_assert_not_owned(pn);
608 /* check if the requested mode is permitted */
609 if (((mode & FREAD) && !(mode & PFS_RD)) ||
610 ((mode & FWRITE) && !(mode & PFS_WR)))
613 /* we don't support locking */
614 if ((mode & O_SHLOCK) || (mode & O_EXLOCK))
615 PFS_RETURN (EOPNOTSUPP);
620 struct sbuf_seek_helper {
626 pfs_sbuf_uio_drain(void *arg, const char *data, int len)
628 struct sbuf_seek_helper *ssh;
636 /* Need to discard first uio_offset bytes. */
637 if (ssh->skip_bytes > 0) {
638 if (ssh->skip_bytes >= len) {
639 ssh->skip_bytes -= len;
643 data += ssh->skip_bytes;
644 len -= ssh->skip_bytes;
645 skipped = ssh->skip_bytes;
649 error = uiomove(__DECONST(void *, data), len, uio);
654 * The fill function has more to emit, but the reader is finished.
655 * This is similar to the truncated read case for non-draining PFS
656 * sbufs, and should be handled appropriately in fill-routines.
658 if (uio->uio_resid == 0)
661 return (skipped + len);
668 pfs_read(struct vop_read_args *va)
670 struct vnode *vn = va->a_vp;
671 struct pfs_vdata *pvd = vn->v_data;
672 struct pfs_node *pn = pvd->pvd_pn;
673 struct uio *uio = va->a_uio;
675 struct sbuf *sb = NULL;
677 off_t buflen, buflim;
678 struct sbuf_seek_helper ssh;
680 PFS_TRACE(("%s", pn->pn_name));
681 pfs_assert_not_owned(pn);
683 if (vn->v_type != VREG)
685 KASSERT_PN_IS_FILE(pn);
687 if (!(pn->pn_flags & PFS_RD))
690 if (pn->pn_fill == NULL)
694 * This is necessary because either process' privileges may
695 * have changed since the open() call.
697 if (!pfs_visible(curthread, pn, pvd->pvd_pid, &proc))
705 locked = VOP_ISLOCKED(vn);
708 if (pn->pn_flags & PFS_RAWRD) {
709 PFS_TRACE(("%zd resid", uio->uio_resid));
710 error = pn_fill(curthread, proc, pn, NULL, uio);
711 PFS_TRACE(("%zd resid", uio->uio_resid));
715 if (uio->uio_resid < 0 || uio->uio_offset < 0 ||
716 uio->uio_resid > OFF_MAX - uio->uio_offset) {
720 buflen = uio->uio_offset + uio->uio_resid + 1;
721 if (pn->pn_flags & PFS_AUTODRAIN)
723 * We can use a smaller buffer if we can stream output to the
728 buflim = PFS_MAXBUFSIZ;
732 sb = sbuf_new(sb, NULL, buflen, 0);
738 if (pn->pn_flags & PFS_AUTODRAIN) {
739 ssh.skip_bytes = uio->uio_offset;
741 sbuf_set_drain(sb, pfs_sbuf_uio_drain, &ssh);
744 error = pn_fill(curthread, proc, pn, sb, uio);
752 * XXX: If the buffer overflowed, sbuf_len() will not return
753 * the data length. Then just use the full length because an
754 * overflowed sbuf must be full.
756 error = sbuf_finish(sb);
757 if ((pn->pn_flags & PFS_AUTODRAIN)) {
759 * ENOBUFS just indicates early termination of the fill
760 * function as the caller's buffer was already filled. Squash
763 if (uio->uio_resid == 0 && error == ENOBUFS)
767 buflen = sbuf_len(sb);
769 /* The trailing byte is not valid. */
771 error = uiomove_frombuf(sbuf_data(sb), buflen, uio);
775 vn_lock(vn, locked | LK_RETRY);
783 * Iterate through directory entries
786 pfs_iterate(struct thread *td, struct proc *proc, struct pfs_node *pd,
787 struct pfs_node **pn, struct proc **p)
791 sx_assert(&allproc_lock, SX_SLOCKED);
792 pfs_assert_owned(pd);
797 } else if ((*pn)->pn_type != pfstype_procdir) {
799 *pn = (*pn)->pn_next;
801 if (*pn != NULL && (*pn)->pn_type == pfstype_procdir) {
804 *p = LIST_FIRST(&allproc);
806 *p = LIST_NEXT(*p, p_list);
807 /* out of processes: next node */
809 *pn = (*pn)->pn_next;
818 visible = pfs_visible_proc(td, *pn, *p);
820 } else if (proc != NULL) {
821 visible = pfs_visible_proc(td, *pn, proc);
823 visible = pn_vis(td, NULL, *pn);
831 /* Directory entry list */
833 STAILQ_ENTRY(pfsentry) link;
836 STAILQ_HEAD(pfsdirentlist, pfsentry);
839 * Return directory entries.
842 pfs_readdir(struct vop_readdir_args *va)
844 struct vnode *vn = va->a_vp;
845 struct pfs_vdata *pvd = vn->v_data;
846 struct pfs_node *pd = pvd->pvd_pn;
847 pid_t pid = pvd->pvd_pid;
848 struct proc *p, *proc;
851 struct pfsentry *pfsent, *pfsent2;
852 struct pfsdirentlist lst;
858 KASSERT(pd->pn_info == vn->v_mount->mnt_data,
859 ("%s(): pn_info does not match mountpoint", __func__));
860 PFS_TRACE(("%s pid %lu", pd->pn_name, (unsigned long)pid));
861 pfs_assert_not_owned(pd);
863 if (vn->v_type != VDIR)
864 PFS_RETURN (ENOTDIR);
865 KASSERT_PN_IS_DIR(pd);
868 /* only allow reading entire entries */
869 offset = uio->uio_offset;
870 resid = uio->uio_resid;
871 if (offset < 0 || offset % PFS_DELEN != 0 ||
872 (resid && resid < PFS_DELEN))
878 if (pid != NO_PID && !pfs_lookup_proc(pid, &proc))
881 sx_slock(&allproc_lock);
884 KASSERT(pid == NO_PID || proc != NULL,
885 ("%s(): no process for pid %lu", __func__, (unsigned long)pid));
890 /* check if the directory is visible to the caller */
891 if (!pfs_visible_proc(curthread, pd, proc)) {
895 sx_sunlock(&allproc_lock);
900 /* skip unwanted entries */
901 for (pn = NULL, p = NULL; offset > 0; offset -= PFS_DELEN) {
902 if (pfs_iterate(curthread, proc, pd, &pn, &p) == -1) {
903 /* nothing left... */
909 sx_sunlock(&allproc_lock);
914 /* fill in entries */
915 while (pfs_iterate(curthread, proc, pd, &pn, &p) != -1 &&
916 resid >= PFS_DELEN) {
917 if ((pfsent = malloc(sizeof(struct pfsentry), M_IOV,
918 M_NOWAIT | M_ZERO)) == NULL) {
922 pfsent->entry.d_reclen = PFS_DELEN;
923 pfsent->entry.d_fileno = pn_fileno(pn, pid);
924 /* PFS_DELEN was picked to fit PFS_NAMLEN */
925 for (i = 0; i < PFS_NAMELEN - 1 && pn->pn_name[i] != '\0'; ++i)
926 pfsent->entry.d_name[i] = pn->pn_name[i];
927 pfsent->entry.d_namlen = i;
928 /* NOTE: d_off is the offset of the *next* entry. */
929 pfsent->entry.d_off = offset + PFS_DELEN;
930 switch (pn->pn_type) {
931 case pfstype_procdir:
933 ("reached procdir node with p == NULL"));
934 pfsent->entry.d_namlen = snprintf(pfsent->entry.d_name,
935 PFS_NAMELEN, "%d", p->p_pid);
941 pfsent->entry.d_type = DT_DIR;
944 pfsent->entry.d_type = DT_REG;
946 case pfstype_symlink:
947 pfsent->entry.d_type = DT_LNK;
950 panic("%s has unexpected node type: %d", pn->pn_name, pn->pn_type);
952 PFS_TRACE(("%s", pfsent->entry.d_name));
953 dirent_terminate(&pfsent->entry);
954 STAILQ_INSERT_TAIL(&lst, pfsent, link);
963 sx_sunlock(&allproc_lock);
965 STAILQ_FOREACH_SAFE(pfsent, &lst, link, pfsent2) {
967 error = uiomove(&pfsent->entry, PFS_DELEN, uio);
971 PFS_TRACE(("%ju bytes", (uintmax_t)(i * PFS_DELEN)));
976 * Read a symbolic link
979 pfs_readlink(struct vop_readlink_args *va)
981 struct vnode *vn = va->a_vp;
982 struct pfs_vdata *pvd = vn->v_data;
983 struct pfs_node *pn = pvd->pvd_pn;
984 struct uio *uio = va->a_uio;
985 struct proc *proc = NULL;
990 PFS_TRACE(("%s", pn->pn_name));
991 pfs_assert_not_owned(pn);
993 if (vn->v_type != VLNK)
995 KASSERT_PN_IS_LINK(pn);
997 if (pn->pn_fill == NULL)
1000 if (pvd->pvd_pid != NO_PID) {
1001 if ((proc = pfind(pvd->pvd_pid)) == NULL)
1003 if (proc->p_flag & P_WEXIT) {
1011 locked = VOP_ISLOCKED(vn);
1014 /* sbuf_new() can't fail with a static buffer */
1015 sbuf_new(&sb, buf, sizeof buf, 0);
1017 error = pn_fill(curthread, proc, pn, &sb, NULL);
1021 vn_lock(vn, locked | LK_RETRY);
1029 if (sbuf_finish(&sb) != 0) {
1031 PFS_RETURN (ENAMETOOLONG);
1034 error = uiomove_frombuf(sbuf_data(&sb), sbuf_len(&sb), uio);
1043 pfs_reclaim(struct vop_reclaim_args *va)
1045 struct vnode *vn = va->a_vp;
1046 struct pfs_vdata *pvd = vn->v_data;
1047 struct pfs_node *pn = pvd->pvd_pn;
1049 PFS_TRACE(("%s", pn->pn_name));
1050 pfs_assert_not_owned(pn);
1052 return (pfs_vncache_free(va->a_vp));
1059 pfs_setattr(struct vop_setattr_args *va)
1061 struct vnode *vn = va->a_vp;
1062 struct pfs_vdata *pvd = vn->v_data;
1063 struct pfs_node *pn = pvd->pvd_pn;
1065 PFS_TRACE(("%s", pn->pn_name));
1066 pfs_assert_not_owned(pn);
1068 /* Silently ignore unchangeable attributes. */
1076 pfs_write(struct vop_write_args *va)
1078 struct vnode *vn = va->a_vp;
1079 struct pfs_vdata *pvd = vn->v_data;
1080 struct pfs_node *pn = pvd->pvd_pn;
1081 struct uio *uio = va->a_uio;
1086 PFS_TRACE(("%s", pn->pn_name));
1087 pfs_assert_not_owned(pn);
1089 if (vn->v_type != VREG)
1090 PFS_RETURN (EINVAL);
1091 KASSERT_PN_IS_FILE(pn);
1093 if (!(pn->pn_flags & PFS_WR))
1096 if (pn->pn_fill == NULL)
1099 if (uio->uio_resid > PFS_MAXBUFSIZ)
1103 * This is necessary because either process' privileges may
1104 * have changed since the open() call.
1106 if (!pfs_visible(curthread, pn, pvd->pvd_pid, &proc))
1113 if (pn->pn_flags & PFS_RAWWR) {
1114 error = pn_fill(curthread, proc, pn, NULL, uio);
1120 sbuf_uionew(&sb, uio, &error);
1127 error = pn_fill(curthread, proc, pn, &sb, uio);
1138 struct vop_vector pfs_vnodeops = {
1139 .vop_default = &default_vnodeops,
1141 .vop_access = pfs_access,
1142 .vop_cachedlookup = pfs_lookup,
1143 .vop_close = pfs_close,
1144 .vop_create = VOP_EOPNOTSUPP,
1145 .vop_getattr = pfs_getattr,
1146 .vop_getextattr = pfs_getextattr,
1147 .vop_ioctl = pfs_ioctl,
1148 .vop_link = VOP_EOPNOTSUPP,
1149 .vop_lookup = vfs_cache_lookup,
1150 .vop_mkdir = VOP_EOPNOTSUPP,
1151 .vop_mknod = VOP_EOPNOTSUPP,
1152 .vop_open = pfs_open,
1153 .vop_read = pfs_read,
1154 .vop_readdir = pfs_readdir,
1155 .vop_readlink = pfs_readlink,
1156 .vop_reclaim = pfs_reclaim,
1157 .vop_remove = VOP_EOPNOTSUPP,
1158 .vop_rename = VOP_EOPNOTSUPP,
1159 .vop_rmdir = VOP_EOPNOTSUPP,
1160 .vop_setattr = pfs_setattr,
1161 .vop_symlink = VOP_EOPNOTSUPP,
1162 .vop_vptocnp = pfs_vptocnp,
1163 .vop_write = pfs_write,
1164 .vop_add_writecount = vop_stdadd_writecount_nomsync,
1165 /* XXX I've probably forgotten a few that need VOP_EOPNOTSUPP */
1167 VFS_VOP_VECTOR_REGISTER(pfs_vnodeops);