freebsd-dev/sys/miscfs/fdesc/fdesc_vnops.c
Bruce Evans a41878a77a Avoid a 64-bit division in fdesc_readdir(). Fixed related overflows
and missing arg checking.

Panic instead of returning bogus error codes or forgetting to check
all cases if fdesc_readdir() gets called for a non-directory.  This
can't happen.
1998-06-14 08:46:41 +00:00

875 lines
19 KiB
C

/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software donated to Berkeley by
* Jan-Simon Pendry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)fdesc_vnops.c 8.9 (Berkeley) 1/21/94
*
* $Id: fdesc_vnops.c,v 1.37 1998/06/10 21:21:28 dfr Exp $
*/
/*
* /dev/fd Filesystem
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/kernel.h> /* boottime */
#include <sys/filedesc.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/dirent.h>
#include <sys/socketvar.h>
#include <sys/conf.h>
#include <miscfs/fdesc/fdesc.h>
extern struct cdevsw ctty_cdevsw;
#define cttyvp(p) ((p)->p_flag & P_CONTROLT ? (p)->p_session->s_ttyvp : NULL)
#define FDL_WANT 0x01
#define FDL_LOCKED 0x02
static int fdcache_lock;
static vop_t **fdesc_vnodeop_p;
dev_t devctty;
#if (FD_STDIN != FD_STDOUT-1) || (FD_STDOUT != FD_STDERR-1)
FD_STDIN, FD_STDOUT, FD_STDERR must be a sequence n, n+1, n+2
#endif
#define NFDCACHE 4
#define FD_NHASH(ix) \
(&fdhashtbl[(ix) & fdhash])
static LIST_HEAD(fdhashhead, fdescnode) *fdhashtbl;
static u_long fdhash;
static int fdesc_attr __P((int fd, struct vattr *vap, struct ucred *cred,
struct proc *p));
static int fdesc_badop __P((void));
static int fdesc_getattr __P((struct vop_getattr_args *ap));
static struct fdcache *
fdesc_hash __P((int ix));
static int fdesc_inactive __P((struct vop_inactive_args *ap));
static int fdesc_ioctl __P((struct vop_ioctl_args *ap));
static int fdesc_lookup __P((struct vop_lookup_args *ap));
static int fdesc_open __P((struct vop_open_args *ap));
static int fdesc_print __P((struct vop_print_args *ap));
static int fdesc_read __P((struct vop_read_args *ap));
static int fdesc_readdir __P((struct vop_readdir_args *ap));
static int fdesc_readlink __P((struct vop_readlink_args *ap));
static int fdesc_reclaim __P((struct vop_reclaim_args *ap));
static int fdesc_poll __P((struct vop_poll_args *ap));
static int fdesc_setattr __P((struct vop_setattr_args *ap));
static int fdesc_write __P((struct vop_write_args *ap));
/*
* Initialise cache headers
*/
int
fdesc_init(vfsp)
struct vfsconf *vfsp;
{
devctty = makedev(nchrdev, 0);
fdhashtbl = hashinit(NFDCACHE, M_CACHE, &fdhash);
return (0);
}
int
fdesc_allocvp(ftype, ix, mp, vpp)
fdntype ftype;
int ix;
struct mount *mp;
struct vnode **vpp;
{
struct proc *p = curproc; /* XXX */
struct fdhashhead *fc;
struct fdescnode *fd;
int error = 0;
fc = FD_NHASH(ix);
loop:
for (fd = fc->lh_first; fd != 0; fd = fd->fd_hash.le_next) {
if (fd->fd_ix == ix && fd->fd_vnode->v_mount == mp) {
if (vget(fd->fd_vnode, 0, p))
goto loop;
*vpp = fd->fd_vnode;
return (error);
}
}
/*
* otherwise lock the array while we call getnewvnode
* since that can block.
*/
if (fdcache_lock & FDL_LOCKED) {
fdcache_lock |= FDL_WANT;
(void) tsleep((caddr_t) &fdcache_lock, PINOD, "fdalvp", 0);
goto loop;
}
fdcache_lock |= FDL_LOCKED;
/*
* Do the MALLOC before the getnewvnode since doing so afterward
* might cause a bogus v_data pointer to get dereferenced
* elsewhere if MALLOC should block.
*/
MALLOC(fd, struct fdescnode *, sizeof(struct fdescnode), M_TEMP, M_WAITOK);
error = getnewvnode(VT_FDESC, mp, fdesc_vnodeop_p, vpp);
if (error) {
FREE(fd, M_TEMP);
goto out;
}
(*vpp)->v_data = fd;
fd->fd_vnode = *vpp;
fd->fd_type = ftype;
fd->fd_fd = -1;
fd->fd_link = 0;
fd->fd_ix = ix;
LIST_INSERT_HEAD(fc, fd, fd_hash);
out:;
fdcache_lock &= ~FDL_LOCKED;
if (fdcache_lock & FDL_WANT) {
fdcache_lock &= ~FDL_WANT;
wakeup((caddr_t) &fdcache_lock);
}
return (error);
}
/*
* vp is the current namei directory
* ndp is the name to locate in that directory...
*/
static int
fdesc_lookup(ap)
struct vop_lookup_args /* {
struct vnode * a_dvp;
struct vnode ** a_vpp;
struct componentname * a_cnp;
} */ *ap;
{
struct vnode **vpp = ap->a_vpp;
struct vnode *dvp = ap->a_dvp;
struct componentname *cnp = ap->a_cnp;
char *pname = cnp->cn_nameptr;
struct proc *p = cnp->cn_proc;
int nfiles = p->p_fd->fd_nfiles;
unsigned fd;
int error;
struct vnode *fvp;
char *ln;
if (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME) {
error = EROFS;
goto bad;
}
VOP_UNLOCK(dvp, 0, p);
if (cnp->cn_namelen == 1 && *pname == '.') {
*vpp = dvp;
VREF(dvp);
vn_lock(dvp, LK_SHARED | LK_RETRY, p);
return (0);
}
switch (VTOFDESC(dvp)->fd_type) {
default:
case Flink:
case Fdesc:
case Fctty:
error = ENOTDIR;
goto bad;
case Froot:
if (cnp->cn_namelen == 2 && bcmp(pname, "fd", 2) == 0) {
error = fdesc_allocvp(Fdevfd, FD_DEVFD, dvp->v_mount, &fvp);
if (error)
goto bad;
*vpp = fvp;
fvp->v_type = VDIR;
vn_lock(fvp, LK_SHARED | LK_RETRY, p);
return (0);
}
if (cnp->cn_namelen == 3 && bcmp(pname, "tty", 3) == 0) {
struct vnode *ttyvp = cttyvp(p);
if (ttyvp == NULL) {
error = ENXIO;
goto bad;
}
error = fdesc_allocvp(Fctty, FD_CTTY, dvp->v_mount, &fvp);
if (error)
goto bad;
*vpp = fvp;
fvp->v_type = VFIFO;
vn_lock(fvp, LK_SHARED | LK_RETRY, p);
return (0);
}
ln = 0;
switch (cnp->cn_namelen) {
case 5:
if (bcmp(pname, "stdin", 5) == 0) {
ln = "fd/0";
fd = FD_STDIN;
}
break;
case 6:
if (bcmp(pname, "stdout", 6) == 0) {
ln = "fd/1";
fd = FD_STDOUT;
} else
if (bcmp(pname, "stderr", 6) == 0) {
ln = "fd/2";
fd = FD_STDERR;
}
break;
}
if (ln) {
error = fdesc_allocvp(Flink, fd, dvp->v_mount, &fvp);
if (error)
goto bad;
VTOFDESC(fvp)->fd_link = ln;
*vpp = fvp;
fvp->v_type = VLNK;
vn_lock(fvp, LK_SHARED | LK_RETRY, p);
return (0);
} else {
error = ENOENT;
goto bad;
}
/* FALL THROUGH */
case Fdevfd:
if (cnp->cn_namelen == 2 && bcmp(pname, "..", 2) == 0) {
if (error = fdesc_root(dvp->v_mount, vpp))
goto bad;
return (0);
}
fd = 0;
while (*pname >= '0' && *pname <= '9') {
fd = 10 * fd + *pname++ - '0';
if (fd >= nfiles)
break;
}
if (*pname != '\0') {
error = ENOENT;
goto bad;
}
if (fd >= nfiles || p->p_fd->fd_ofiles[fd] == NULL) {
error = EBADF;
goto bad;
}
error = fdesc_allocvp(Fdesc, FD_DESC+fd, dvp->v_mount, &fvp);
if (error)
goto bad;
VTOFDESC(fvp)->fd_fd = fd;
vn_lock(fvp, LK_SHARED | LK_RETRY, p);
*vpp = fvp;
return (0);
}
bad:;
vn_lock(dvp, LK_SHARED | LK_RETRY, p);
*vpp = NULL;
return (error);
}
static int
fdesc_open(ap)
struct vop_open_args /* {
struct vnode *a_vp;
int a_mode;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
struct vnode *vp = ap->a_vp;
int error = 0;
switch (VTOFDESC(vp)->fd_type) {
case Fdesc:
/*
* XXX Kludge: set p->p_dupfd to contain the value of the
* the file descriptor being sought for duplication. The error
* return ensures that the vnode for this device will be
* released by vn_open. Open will detect this special error and
* take the actions in dupfdopen. Other callers of vn_open or
* VOP_OPEN will simply report the error.
*/
ap->a_p->p_dupfd = VTOFDESC(vp)->fd_fd; /* XXX */
error = ENODEV;
break;
case Fctty:
error = (*ctty_cdevsw.d_open)(devctty, ap->a_mode, 0, ap->a_p);
break;
}
return (error);
}
static int
fdesc_attr(fd, vap, cred, p)
int fd;
struct vattr *vap;
struct ucred *cred;
struct proc *p;
{
struct filedesc *fdp = p->p_fd;
struct file *fp;
struct stat stb;
int error;
if (fd >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[fd]) == NULL)
return (EBADF);
switch (fp->f_type) {
case DTYPE_FIFO:
case DTYPE_VNODE:
error = VOP_GETATTR((struct vnode *) fp->f_data, vap, cred, p);
if (error == 0 && vap->va_type == VDIR) {
/*
* directories can cause loops in the namespace,
* so turn off the 'x' bits to avoid trouble.
*/
vap->va_mode &= ~((VEXEC)|(VEXEC>>3)|(VEXEC>>6));
}
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &stb);
if (error == 0) {
vattr_null(vap);
vap->va_type = VSOCK;
vap->va_mode = stb.st_mode;
vap->va_nlink = stb.st_nlink;
vap->va_uid = stb.st_uid;
vap->va_gid = stb.st_gid;
vap->va_fsid = stb.st_dev;
vap->va_fileid = stb.st_ino;
vap->va_size = stb.st_size;
vap->va_blocksize = stb.st_blksize;
vap->va_atime = stb.st_atimespec;
vap->va_mtime = stb.st_mtimespec;
vap->va_ctime = stb.st_ctimespec;
vap->va_gen = stb.st_gen;
vap->va_flags = stb.st_flags;
vap->va_rdev = stb.st_rdev;
vap->va_bytes = stb.st_blocks * stb.st_blksize;
}
break;
default:
panic("fdesc attr");
break;
}
return (error);
}
static int
fdesc_getattr(ap)
struct vop_getattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
struct vnode *vp = ap->a_vp;
struct vattr *vap = ap->a_vap;
unsigned fd;
int error = 0;
switch (VTOFDESC(vp)->fd_type) {
case Froot:
case Fdevfd:
case Flink:
case Fctty:
bzero((caddr_t) vap, sizeof(*vap));
vattr_null(vap);
vap->va_fileid = VTOFDESC(vp)->fd_ix;
switch (VTOFDESC(vp)->fd_type) {
case Flink:
vap->va_mode = S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
vap->va_type = VLNK;
vap->va_nlink = 1;
vap->va_size = strlen(VTOFDESC(vp)->fd_link);
break;
case Fctty:
vap->va_mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
vap->va_type = VFIFO;
vap->va_nlink = 1;
vap->va_size = 0;
break;
default:
vap->va_mode = S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
vap->va_type = VDIR;
vap->va_nlink = 2;
vap->va_size = DEV_BSIZE;
break;
}
vap->va_uid = 0;
vap->va_gid = 0;
vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
vap->va_blocksize = DEV_BSIZE;
vap->va_atime.tv_sec = boottime.tv_sec;
vap->va_atime.tv_nsec = 0;
vap->va_mtime = vap->va_atime;
vap->va_ctime = vap->va_mtime;
vap->va_gen = 0;
vap->va_flags = 0;
vap->va_rdev = 0;
vap->va_bytes = 0;
break;
case Fdesc:
fd = VTOFDESC(vp)->fd_fd;
error = fdesc_attr(fd, vap, ap->a_cred, ap->a_p);
break;
default:
panic("fdesc_getattr");
break;
}
if (error == 0)
vp->v_type = vap->va_type;
return (error);
}
static int
fdesc_setattr(ap)
struct vop_setattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
struct filedesc *fdp = ap->a_p->p_fd;
struct vattr *vap = ap->a_vap;
struct file *fp;
unsigned fd;
int error;
/*
* Can't mess with the root vnode
*/
switch (VTOFDESC(ap->a_vp)->fd_type) {
case Fdesc:
break;
case Fctty:
if (vap->va_flags != VNOVAL)
return (EOPNOTSUPP);
return (0);
default:
return (EACCES);
}
fd = VTOFDESC(ap->a_vp)->fd_fd;
if (fd >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[fd]) == NULL) {
return (EBADF);
}
/*
* Can setattr the underlying vnode, but not sockets!
*/
switch (fp->f_type) {
case DTYPE_FIFO:
case DTYPE_PIPE:
case DTYPE_VNODE:
error = VOP_SETATTR((struct vnode *) fp->f_data, ap->a_vap, ap->a_cred, ap->a_p);
break;
case DTYPE_SOCKET:
if (vap->va_flags != VNOVAL)
error = EOPNOTSUPP;
else
error = 0;
break;
default:
error = EBADF;
break;
}
return (error);
}
#define UIO_MX 16
static struct dirtmp {
u_long d_fileno;
u_short d_reclen;
u_short d_namlen;
char d_name[8];
} rootent[] = {
{ FD_DEVFD, UIO_MX, 2, "fd" },
{ FD_STDIN, UIO_MX, 5, "stdin" },
{ FD_STDOUT, UIO_MX, 6, "stdout" },
{ FD_STDERR, UIO_MX, 6, "stderr" },
{ FD_CTTY, UIO_MX, 3, "tty" },
};
static int
fdesc_readdir(ap)
struct vop_readdir_args /* {
struct vnode *a_vp;
struct uio *a_uio;
struct ucred *a_cred;
int *a_eofflag;
u_long *a_cookies;
int a_ncookies;
} */ *ap;
{
struct uio *uio = ap->a_uio;
struct filedesc *fdp;
int error, i, off;
/*
* We don't allow exporting fdesc mounts, and currently local
* requests do not need cookies.
*/
if (ap->a_ncookies)
panic("fdesc_readdir: not hungry");
if (VTOFDESC(ap->a_vp)->fd_type != Froot &&
VTOFDESC(ap->a_vp)->fd_type != Fdevfd)
panic("fdesc_readdir: not dir");
off = (int)uio->uio_offset;
if (off != uio->uio_offset || off < 0 || (u_int)off % UIO_MX != 0 ||
uio->uio_resid < UIO_MX)
return (EINVAL);
i = (u_int)off / UIO_MX;
fdp = uio->uio_procp->p_fd;
if (VTOFDESC(ap->a_vp)->fd_type == Froot) {
struct dirent d;
struct dirent *dp = &d;
struct dirtmp *dt;
error = 0;
while (i < sizeof(rootent) / sizeof(rootent[0]) &&
uio->uio_resid >= UIO_MX) {
dt = &rootent[i];
switch (dt->d_fileno) {
case FD_CTTY:
if (cttyvp(uio->uio_procp) == NULL)
continue;
break;
case FD_STDIN:
case FD_STDOUT:
case FD_STDERR:
if ((dt->d_fileno-FD_STDIN) >= fdp->fd_nfiles)
continue;
if (fdp->fd_ofiles[dt->d_fileno-FD_STDIN] == NULL)
continue;
break;
}
bzero((caddr_t) dp, UIO_MX);
dp->d_fileno = dt->d_fileno;
dp->d_namlen = dt->d_namlen;
dp->d_type = DT_UNKNOWN;
dp->d_reclen = dt->d_reclen;
bcopy(dt->d_name, dp->d_name, dp->d_namlen+1);
error = uiomove((caddr_t) dp, UIO_MX, uio);
if (error)
break;
i++;
}
uio->uio_offset = i * UIO_MX;
return (error);
}
error = 0;
while (i < fdp->fd_nfiles && uio->uio_resid >= UIO_MX) {
if (fdp->fd_ofiles[i] != NULL) {
struct dirent d;
struct dirent *dp = &d;
bzero((caddr_t) dp, UIO_MX);
dp->d_namlen = sprintf(dp->d_name, "%d", i);
dp->d_reclen = UIO_MX;
dp->d_type = DT_UNKNOWN;
dp->d_fileno = i + FD_STDIN;
/*
* And ship to userland
*/
error = uiomove((caddr_t) dp, UIO_MX, uio);
if (error)
break;
}
i++;
}
uio->uio_offset = i * UIO_MX;
return (error);
}
static int
fdesc_readlink(ap)
struct vop_readlink_args /* {
struct vnode *a_vp;
struct uio *a_uio;
struct ucred *a_cred;
} */ *ap;
{
struct vnode *vp = ap->a_vp;
int error;
if (vp->v_type != VLNK)
return (EPERM);
if (VTOFDESC(vp)->fd_type == Flink) {
char *ln = VTOFDESC(vp)->fd_link;
error = uiomove(ln, strlen(ln), ap->a_uio);
} else {
error = EOPNOTSUPP;
}
return (error);
}
static int
fdesc_read(ap)
struct vop_read_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
struct ucred *a_cred;
} */ *ap;
{
int error = EOPNOTSUPP;
switch (VTOFDESC(ap->a_vp)->fd_type) {
case Fctty:
error = (*ctty_cdevsw.d_read)(devctty, ap->a_uio, ap->a_ioflag);
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
}
static int
fdesc_write(ap)
struct vop_write_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
struct ucred *a_cred;
} */ *ap;
{
int error = EOPNOTSUPP;
switch (VTOFDESC(ap->a_vp)->fd_type) {
case Fctty:
error = (*ctty_cdevsw.d_write)(devctty, ap->a_uio, ap->a_ioflag);
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
}
static int
fdesc_ioctl(ap)
struct vop_ioctl_args /* {
struct vnode *a_vp;
int a_command;
caddr_t a_data;
int a_fflag;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
int error = EOPNOTSUPP;
switch (VTOFDESC(ap->a_vp)->fd_type) {
case Fctty:
error = (*ctty_cdevsw.d_ioctl)(devctty, ap->a_command,
ap->a_data, ap->a_fflag, ap->a_p);
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
}
static int
fdesc_poll(ap)
struct vop_poll_args /* {
struct vnode *a_vp;
int a_events;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
int revents;
switch (VTOFDESC(ap->a_vp)->fd_type) {
case Fctty:
revents = (*ctty_cdevsw.d_poll)(devctty, ap->a_events, ap->a_p);
break;
default:
revents = seltrue(0, ap->a_events, ap->a_p);
break;
}
return (revents);
}
static int
fdesc_inactive(ap)
struct vop_inactive_args /* {
struct vnode *a_vp;
struct proc *a_p;
} */ *ap;
{
struct vnode *vp = ap->a_vp;
/*
* Clear out the v_type field to avoid
* nasty things happening in vgone().
*/
VOP_UNLOCK(vp, 0, ap->a_p);
vp->v_type = VNON;
return (0);
}
static int
fdesc_reclaim(ap)
struct vop_reclaim_args /* {
struct vnode *a_vp;
} */ *ap;
{
struct vnode *vp = ap->a_vp;
struct fdescnode *fd = VTOFDESC(vp);
LIST_REMOVE(fd, fd_hash);
FREE(vp->v_data, M_TEMP);
vp->v_data = 0;
return (0);
}
/*
* Print out the contents of a /dev/fd vnode.
*/
/* ARGSUSED */
static int
fdesc_print(ap)
struct vop_print_args /* {
struct vnode *a_vp;
} */ *ap;
{
printf("tag VT_NON, fdesc vnode\n");
return (0);
}
/*
* /dev/fd "should never get here" operation
*/
static int
fdesc_badop()
{
panic("fdesc: bad op");
/* NOTREACHED */
}
static struct vnodeopv_entry_desc fdesc_vnodeop_entries[] = {
{ &vop_default_desc, (vop_t *) vop_defaultop },
{ &vop_access_desc, (vop_t *) vop_null },
{ &vop_bmap_desc, (vop_t *) fdesc_badop },
{ &vop_getattr_desc, (vop_t *) fdesc_getattr },
{ &vop_inactive_desc, (vop_t *) fdesc_inactive },
{ &vop_ioctl_desc, (vop_t *) fdesc_ioctl },
{ &vop_lookup_desc, (vop_t *) fdesc_lookup },
{ &vop_open_desc, (vop_t *) fdesc_open },
{ &vop_pathconf_desc, (vop_t *) vop_stdpathconf },
{ &vop_poll_desc, (vop_t *) fdesc_poll },
{ &vop_print_desc, (vop_t *) fdesc_print },
{ &vop_read_desc, (vop_t *) fdesc_read },
{ &vop_readdir_desc, (vop_t *) fdesc_readdir },
{ &vop_readlink_desc, (vop_t *) fdesc_readlink },
{ &vop_reclaim_desc, (vop_t *) fdesc_reclaim },
{ &vop_setattr_desc, (vop_t *) fdesc_setattr },
{ &vop_write_desc, (vop_t *) fdesc_write },
{ NULL, NULL }
};
static struct vnodeopv_desc fdesc_vnodeop_opv_desc =
{ &fdesc_vnodeop_p, fdesc_vnodeop_entries };
VNODEOP_SET(fdesc_vnodeop_opv_desc);