Remove portalfs.

While it is a terribly cool idea, it's just awful and since noone has stepped
up to the plate to keep it up with the current vop state, retire it to the
attic.

ok krw@, deraadt@, guenther@, miod@.
comments from jmc@

3 files changed, 0 insertions, 991 deletions

diff --git a/sys/miscfs/portal/portal.h b/sys/miscfs/portal/portal.h
deleted file mode 100644
index dd7db01cfa4..00000000000
--- a/sys/miscfs/portal/portal.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*	$OpenBSD: portal.h,v 1.5 2003/08/14 07:46:39 mickey Exp $	*/
-/*	$NetBSD: portal.h,v 1.7 1996/02/09 22:40:40 christos Exp $	*/
-
-/*
- * 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. 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.
- *
- *	from: Id: portal.h,v 1.3 1992/05/30 10:05:24 jsp Exp
- *	@(#)portal.h	8.4 (Berkeley) 1/21/94
- */
-
-struct portal_args {
-	char		*pa_config;	/* Config file */
-	int		pa_socket;	/* Socket to server */
-};
-
-struct portal_cred {
-	int		pcr_flag;		/* File open mode */
-	uid_t		pcr_uid;		/* From ucred */
-	gid_t		pcr_gid;		/* From ucred */
-	short		pcr_ngroups;		/* From ucred */
-	gid_t		pcr_groups[NGROUPS];	/* From ucred */
-};
-
-#ifdef _KERNEL
-struct portalmount {
-	struct vnode	*pm_root;	/* Root node */
-	struct file	*pm_server;	/* Held reference to server socket */
-};
-
-struct portalnode {
-	int		pt_size;	/* Length of Arg */
-	char		*pt_arg;	/* Arg to send to server */
-	int		pt_fileid;	/* cookie */
-};
-
-#define VFSTOPORTAL(mp)	((struct portalmount *)((mp)->mnt_data))
-#define	VTOPORTAL(vp) ((struct portalnode *)(vp)->v_data)
-
-#define PORTAL_ROOTFILEID	2
-
-extern int (**portal_vnodeop_p)(void *);
-extern const struct vfsops portal_vfsops;
-#endif /* _KERNEL */
diff --git a/sys/miscfs/portal/portal_vfsops.c b/sys/miscfs/portal/portal_vfsops.c
deleted file mode 100644
index ee959434394..00000000000
--- a/sys/miscfs/portal/portal_vfsops.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*	$OpenBSD: portal_vfsops.c,v 1.24 2009/07/09 22:29:56 thib Exp $	*/
-/*	$NetBSD: portal_vfsops.c,v 1.14 1996/02/09 22:40:41 christos Exp $	*/
-
-/*
- * 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. 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.
- *
- *	from: Id: portal_vfsops.c,v 1.5 1992/05/30 10:25:27 jsp Exp
- *	@(#)portal_vfsops.c	8.6 (Berkeley) 1/21/94
- */
-
-/*
- * Portal Filesystem
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/proc.h>
-#include <sys/filedesc.h>
-#include <sys/file.h>
-#include <sys/vnode.h>
-#include <sys/mount.h>
-#include <sys/namei.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/protosw.h>
-#include <sys/domain.h>
-#include <sys/un.h>
-#include <sys/dirent.h>
-#include <miscfs/portal/portal.h>
-
-#define portal_init ((int (*)(struct vfsconf *))nullop)
-
-int	portal_mount(struct mount *, const char *, void *,
-			  struct nameidata *, struct proc *);
-int	portal_start(struct mount *, int, struct proc *);
-int	portal_unmount(struct mount *, int, struct proc *);
-int	portal_root(struct mount *, struct vnode **);
-int	portal_statfs(struct mount *, struct statfs *, struct proc *);
-
-
-/*
- * Mount the per-process file descriptors (/dev/fd)
- */
-int
-portal_mount(struct mount *mp, const char *path, void *data, struct nameidata *ndp,
-    struct proc *p)
-{
-	struct file *fp;
-	struct portal_args args;
-	struct portalmount *fmp;
-	struct socket *so;
-	struct vnode *rvp;
-	size_t size;
-	int error;
-
-	/*
-	 * Update is a no-op
-	 */
-	if (mp->mnt_flag & MNT_UPDATE)
-		return (EOPNOTSUPP);
-
-	error = copyin(data, &args, sizeof(struct portal_args));
-	if (error)
-		return (error);
-
-	if ((error = getsock(p->p_fd, args.pa_socket, &fp)) != 0)
-		return (error);
-	so = (struct socket *) fp->f_data;
-	if (so->so_proto->pr_domain->dom_family != AF_UNIX) {
-		FRELE(fp);
-		return (ESOCKTNOSUPPORT);
-	}
-
-	error = getnewvnode(VT_PORTAL, mp, portal_vnodeop_p, &rvp); /* XXX */
-	if (error) {
-		FRELE(fp);
-		return (error);
-	}
-	rvp->v_data = malloc(sizeof(struct portalnode), M_TEMP, M_WAITOK);
-
-	fmp = (struct portalmount *) malloc(sizeof(struct portalmount),
-				 M_MISCFSMNT, M_WAITOK);
-	rvp->v_type = VDIR;
-	rvp->v_flag |= VROOT;
-	VTOPORTAL(rvp)->pt_arg = 0;
-	VTOPORTAL(rvp)->pt_size = 0;
-	VTOPORTAL(rvp)->pt_fileid = PORTAL_ROOTFILEID;
-	fmp->pm_root = rvp;
-	fmp->pm_server = fp;
-	fp->f_count++;
-	FRELE(fp);
-
-	mp->mnt_flag |= MNT_LOCAL;
-	mp->mnt_data = fmp;
-	vfs_getnewfsid(mp);
-
-	mp->mnt_stat.f_namemax = MAXNAMLEN;
-
-	(void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
-	bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
-	(void) copyinstr(args.pa_config, mp->mnt_stat.f_mntfromname,
-	    MNAMELEN - 1, &size);
-	bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
-	return (0);
-}
-
-int
-portal_start(struct mount *mp, int flags, struct proc *p)
-{
-
-	return (0);
-}
-
-int
-portal_unmount(struct mount *mp, int mntflags, struct proc *p)
-{
-	struct vnode *rvp = VFSTOPORTAL(mp)->pm_root;
-	int error, flags = 0;
-
-	if (mntflags & MNT_FORCE) {
-		flags |= FORCECLOSE;
-	}
-
-	/*
-	 * Clear out buffer cache.  I don't think we
-	 * ever get anything cached at this level at the
-	 * moment, but who knows...
-	 */
-#ifdef notyet
-	mntflushbuf(mp, 0); 
-	if (mntinvalbuf(mp, 1))
-		return (EBUSY);
-#endif
-	if (rvp->v_usecount > 1 && !(flags & FORCECLOSE))
-		return (EBUSY);
-	if ((error = vflush(mp, rvp, flags)) != 0)
-		return (error);
-
-	/*
-	 * Release reference on underlying root vnode
-	 */
-	vrele(rvp);
-	/*
-	 * And blow it away for future re-use
-	 */
-	vgone(rvp);
-	/*
-	 * Shutdown the socket.  This will cause the select in the
-	 * daemon to wake up, and then the accept will get ECONNABORTED
-	 * which it interprets as a request to go and bury itself.
-	 */
-	FREF(VFSTOPORTAL(mp)->pm_server);
-	soshutdown((struct socket *) VFSTOPORTAL(mp)->pm_server->f_data, 2);
-	/*
-	 * Discard reference to underlying file.  Must call closef because
-	 * this may be the last reference.
-	 */
-	closef(VFSTOPORTAL(mp)->pm_server, NULL);
-	/*
-	 * Finally, throw away the portalmount structure
-	 */
-	free(mp->mnt_data, M_MISCFSMNT);
-	mp->mnt_data = 0;
-	return (0);
-}
-
-int
-portal_root(struct mount *mp, struct vnode **vpp)
-{
-	struct vnode *vp;
-	struct proc *p = curproc;
-
-	/*
-	 * Return locked reference to root.
-	 */
-	vp = VFSTOPORTAL(mp)->pm_root;
-	vref(vp);
-	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
-	*vpp = vp;
-	return (0);
-}
-
-int
-portal_statfs(struct mount *mp, struct statfs *sbp, struct proc *p)
-{
-
-	sbp->f_bsize = DEV_BSIZE;
-	sbp->f_iosize = DEV_BSIZE;
-	sbp->f_blocks = 2;		/* 1K to keep df happy */
-	sbp->f_bfree = 0;
-	sbp->f_bavail = 0;
-	sbp->f_files = 1;		/* Allow for "." */
-	sbp->f_ffree = 0;		/* See comments above */
-	copy_statfs_info(sbp, mp);
-
-	return (0);
-}
-
-
-#define portal_sync ((int (*)(struct mount *, int, struct ucred *, \
-				  struct proc *))nullop)
-
-#define portal_fhtovp ((int (*)(struct mount *, struct fid *, \
-	    struct vnode **))eopnotsupp)
-#define portal_quotactl ((int (*)(struct mount *, int, uid_t, caddr_t, \
-	    struct proc *))eopnotsupp)
-#define portal_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \
-	    size_t, struct proc *))eopnotsupp)
-#define portal_vget ((int (*)(struct mount *, ino_t, struct vnode **)) \
-	    eopnotsupp)
-#define portal_vptofh ((int (*)(struct vnode *, struct fid *))eopnotsupp)
-#define portal_checkexp ((int (*)(struct mount *, struct mbuf *,	\
-	int *, struct ucred **))eopnotsupp)
-
-const struct vfsops portal_vfsops = {
-	portal_mount,
-	portal_start,
-	portal_unmount,
-	portal_root,
-	portal_quotactl,
-	portal_statfs,
-	portal_sync,
-	portal_vget,
-	portal_fhtovp,
-	portal_vptofh,
-	portal_init,
-	portal_sysctl,
-	portal_checkexp
-};
diff --git a/sys/miscfs/portal/portal_vnops.c b/sys/miscfs/portal/portal_vnops.c
deleted file mode 100644
index d95f65cf01c..00000000000
--- a/sys/miscfs/portal/portal_vnops.c
+++ /dev/null
@@ -1,659 +0,0 @@
-/*	$OpenBSD: portal_vnops.c,v 1.31 2009/08/14 16:32:21 jasper Exp $	*/
-/*	$NetBSD: portal_vnops.c,v 1.17 1996/02/13 13:12:57 mycroft Exp $	*/
-
-/*
- * 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. 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.
- *
- *	from: Id: portal_vnops.c,v 1.4 1992/05/30 10:05:24 jsp Exp
- *	@(#)portal_vnops.c	8.8 (Berkeley) 1/21/94
- */
-
-/*
- * Portal Filesystem
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/proc.h>
-#include <sys/filedesc.h>
-#include <sys/vnode.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/mount.h>
-#include <sys/malloc.h>
-#include <sys/namei.h>
-#include <sys/mbuf.h>
-#include <sys/poll.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/un.h>
-#include <sys/unpcb.h>
-#include <sys/syscallargs.h>
-#include <miscfs/portal/portal.h>
-
-static int portal_fileid = PORTAL_ROOTFILEID+1;
-
-static void	portal_closefd(struct proc *, int);
-static int	portal_connect(struct socket *, struct socket *);
-
-
-int	portal_badop(void *);
-
-int	portal_lookup(void *);
-int	portal_open(void *);
-int	portal_getattr(void *);
-int	portal_setattr(void *);
-int	portal_link(void *);
-int	portal_symlink(void *);
-int	portal_readdir(void *);
-int	portal_inactive(void *);
-int	portal_reclaim(void *);
-int	portal_print(void *);
-int	portal_pathconf(void *);
-int	portal_poll(void *);
-
-int (**portal_vnodeop_p)(void *);
-struct vnodeopv_entry_desc portal_vnodeop_entries[] = {
-	{ &vop_default_desc, eopnotsupp },
-	{ &vop_lookup_desc, portal_lookup },
-	{ &vop_create_desc, eopnotsupp },
-	{ &vop_mknod_desc, eopnotsupp },
-	{ &vop_open_desc, portal_open },
-	{ &vop_close_desc, nullop },
-	{ &vop_access_desc, nullop },
-	{ &vop_getattr_desc, portal_getattr },
-	{ &vop_setattr_desc, portal_setattr },
-	{ &vop_read_desc, eopnotsupp },
-	{ &vop_write_desc, eopnotsupp },
-	{ &vop_ioctl_desc, (int (*)(void *))enoioctl },
-	{ &vop_poll_desc, portal_poll },
-	{ &vop_revoke_desc, vop_generic_revoke },
-	{ &vop_fsync_desc, nullop },
-	{ &vop_remove_desc, eopnotsupp },
-	{ &vop_link_desc, portal_link },
-	{ &vop_rename_desc, eopnotsupp },
-	{ &vop_mkdir_desc, eopnotsupp },
-	{ &vop_rmdir_desc, eopnotsupp },
-	{ &vop_symlink_desc, portal_symlink },
-	{ &vop_readdir_desc, portal_readdir },
-	{ &vop_readlink_desc, eopnotsupp },
-	{ &vop_abortop_desc, vop_generic_abortop },
-	{ &vop_inactive_desc, portal_inactive },
-	{ &vop_reclaim_desc, portal_reclaim },
-	{ &vop_lock_desc, vop_generic_lock },
-	{ &vop_unlock_desc, vop_generic_unlock },
-	{ &vop_bmap_desc, portal_badop },
-	{ &vop_strategy_desc, portal_badop },
-	{ &vop_print_desc, portal_print },
-	{ &vop_islocked_desc, vop_generic_islocked },
-	{ &vop_pathconf_desc, portal_pathconf },
-	{ &vop_advlock_desc, eopnotsupp },
-	{ &vop_bwrite_desc, eopnotsupp },
-	{ NULL, NULL }
-};
-struct vnodeopv_desc portal_vnodeop_opv_desc =
-	{ &portal_vnodeop_p, portal_vnodeop_entries };
-
-static void
-portal_closefd(struct proc *p, int fd)
-{
-	struct sys_close_args /* {
-		syscallarg(int) fd;
-	} */ ua;
-	register_t retval[2];
-	int error;
-
-	SCARG(&ua, fd) = fd;
-	error = sys_close(p, &ua, retval);
-	/*
-	 * We should never get an error, and there isn't anything
-	 * we could do if we got one, so just print a message.
-	 */
-	if (error)
-		printf("portal_closefd: error = %d\n", error);
-}
-
-/*
- * vp is the current namei directory
- * cnp is the name to locate in that directory...
- */
-int
-portal_lookup(void *v)
-{
-	struct vop_lookup_args *ap = v;
-	struct componentname *cnp = ap->a_cnp;
-	struct vnode **vpp = ap->a_vpp;
-	struct vnode *dvp = ap->a_dvp;
-	char *pname = cnp->cn_nameptr;
-	struct proc *p = cnp->cn_proc;
-	struct portalnode *pt;
-	int error;
-	struct vnode *fvp = 0;
-	char *path;
-	int size;
-
-	*vpp = NULLVP;
-
-	if (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME)
-		return (EROFS);
-
-	if (cnp->cn_namelen == 1 && *pname == '.') {
-		*vpp = dvp;
-		vref(dvp);
-		return (0);
-	}
-
-	error = getnewvnode(VT_PORTAL, dvp->v_mount, portal_vnodeop_p, &fvp);
-	if (error)
-		goto bad;
-	fvp->v_type = VREG;
-	fvp->v_data = malloc(sizeof(struct portalnode), M_TEMP, M_WAITOK);
-
-	pt = VTOPORTAL(fvp);
-	/*
-	 * Save all of the remaining pathname and
-	 * advance the namei next pointer to the end
-	 * of the string.
-	 */
-	for (size = 0, path = pname; *path; path++)
-		size++;
-	cnp->cn_consume = size - cnp->cn_namelen;
-
-	pt->pt_arg = malloc(size+1, M_TEMP, M_WAITOK);
-	pt->pt_size = size+1;
-	bcopy(pname, pt->pt_arg, pt->pt_size);
-	pt->pt_fileid = portal_fileid++;
-
-	*vpp = fvp;
-	VOP_LOCK(fvp, LK_EXCLUSIVE, p);
-	/*
-	 * As we are the last component of the path name, fix up
-	 * the locking on the directory node.
-	 */
-	if ((cnp->cn_flags & LOCKPARENT) == 0) {
-		VOP_UNLOCK(dvp, 0, p);
-		cnp->cn_flags |= PDIRUNLOCK;
-	}
-	return (0);
-
-bad:;
-	if (fvp)
-		vrele(fvp);
-	return (error);
-}
-
-static int
-portal_connect(struct socket *so, struct socket *so2)
-{
-	/* from unp_connect, bypassing the namei stuff... */
-	struct socket *so3;
-	struct unpcb *unp2;
-	struct unpcb *unp3;
-
-	if (so2 == 0)
-		return (ECONNREFUSED);
-
-	if (so->so_type != so2->so_type)
-		return (EPROTOTYPE);
-
-	if ((so2->so_options & SO_ACCEPTCONN) == 0)
-		return (ECONNREFUSED);
-
-	if ((so3 = sonewconn(so2, 0)) == 0)
-		return (ECONNREFUSED);
-
-	unp2 = sotounpcb(so2);
-	unp3 = sotounpcb(so3);
-	if (unp2->unp_addr)
-		unp3->unp_addr = m_copy(unp2->unp_addr, 0, (int)M_COPYALL);
-
-	so2 = so3;
-
-
-	return (unp_connect2(so, so2));
-}
-
-int
-portal_open(void *v)
-{
-	struct vop_open_args *ap = v;
-	struct socket *so = 0;
-	struct portalnode *pt;
-	struct proc *p = ap->a_p;
-	struct vnode *vp = ap->a_vp;
-	int s;
-	struct uio auio;
-	struct iovec aiov[2];
-	int res;
-	struct mbuf *cm = 0;
-	struct cmsghdr *cmsg;
-	int newfds;
-	int *ip;
-	int fd;
-	int error;
-	int len;
-	struct portalmount *fmp;
-	struct file *fp;
-	struct portal_cred pcred;
-
-	/*
-	 * Nothing to do when opening the root node.
-	 */
-	if (vp->v_flag & VROOT)
-		return (0);
-
-	/*
-	 * Can't be opened unless the caller is set up
-	 * to deal with the side effects.  Check for this
-	 * by testing whether the p_dupfd has been set.
-	 */
-	if (p->p_dupfd >= 0)
-		return (ENODEV);
-
-	pt = VTOPORTAL(vp);
-	fmp = VFSTOPORTAL(vp->v_mount);
-
-	/*
-	 * Create a new socket.
-	 */
-	error = socreate(AF_UNIX, &so, SOCK_STREAM, 0);
-	if (error)
-		goto bad;
-
-	/*
-	 * Reserve some buffer space
-	 */
-	res = pt->pt_size + sizeof(pcred) + 512;	/* XXX */
-	error = soreserve(so, res, res);
-	if (error)
-		goto bad;
-
-	/*
-	 * Kick off connection
-	 */
-	s = splsoftnet();
-	error = portal_connect(so, (struct socket *)fmp->pm_server->f_data);
-	splx(s);
-	if (error)
-		goto bad;
-
-	/*
-	 * Wait for connection to complete
-	 */
-	/*
-	 * XXX: Since the mount point is holding a reference on the
-	 * underlying server socket, it is not easy to find out whether
-	 * the server process is still running.  To handle this problem
-	 * we loop waiting for the new socket to be connected (something
-	 * which will only happen if the server is still running) or for
-	 * the reference count on the server socket to drop to 1, which
-	 * will happen if the server dies.  Sleep for 5 second intervals
-	 * and keep polling the reference count.   XXX.
-	 */
-	s = splsoftnet();
-	while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
-		if (fmp->pm_server->f_count == 1) {
-			error = ECONNREFUSED;
-			splx(s);
-			goto bad;
-		}
-		(void) tsleep(&so->so_timeo, PSOCK, "portalcon", 5 * hz);
-	}
-	splx(s);
-
-	if (so->so_error) {
-		error = so->so_error;
-		goto bad;
-	}
-		
-	/*
-	 * Set miscellaneous flags
-	 */
-	so->so_rcv.sb_timeo = 0;
-	so->so_snd.sb_timeo = 0;
-	so->so_rcv.sb_flags |= SB_NOINTR;
-	so->so_snd.sb_flags |= SB_NOINTR;
-
-
-	pcred.pcr_flag = ap->a_mode;
-	pcred.pcr_uid = ap->a_cred->cr_uid;
-	pcred.pcr_gid = ap->a_cred->cr_gid;
-	pcred.pcr_ngroups = ap->a_cred->cr_ngroups;
-	bcopy(ap->a_cred->cr_groups, pcred.pcr_groups, NGROUPS * sizeof(gid_t));
-	aiov[0].iov_base = &pcred;
-	aiov[0].iov_len = sizeof(pcred);
-	aiov[1].iov_base = pt->pt_arg;
-	aiov[1].iov_len = pt->pt_size;
-	auio.uio_iov = aiov;
-	auio.uio_iovcnt = 2;
-	auio.uio_rw = UIO_WRITE;
-	auio.uio_segflg = UIO_SYSSPACE;
-	auio.uio_procp = p;
-	auio.uio_offset = 0;
-	auio.uio_resid = aiov[0].iov_len + aiov[1].iov_len;
-
-	error = sosend(so, (struct mbuf *) 0, &auio,
-			(struct mbuf *) 0, (struct mbuf *) 0, 0);
-	if (error)
-		goto bad;
-
-	len = auio.uio_resid = sizeof(int);
-	do {
-		struct mbuf *m = 0;
-		int flags = MSG_WAITALL;
-		fdpunlock(p->p_fd);
-		error = soreceive(so, (struct mbuf **) 0, &auio,
-					&m, &cm, &flags, 0);
-		fdplock(p->p_fd);
-		if (error)
-			goto bad;
-
-		/*
-		 * Grab an error code from the mbuf.
-		 */
-		if (m) {
-			m = m_pullup(m, sizeof(int));	/* Needed? */
-			if (m) {
-				error = *(mtod(m, int *));
-				m_freem(m);
-			} else {
-				error = EINVAL;
-			}
-		} else {
-			if (cm == 0) {
-				error = ECONNRESET;	 /* XXX */
-#ifdef notdef
-				break;
-#endif
-			}
-		}
-	} while (cm == 0 && auio.uio_resid == len && !error);
-
-	if (cm == 0)
-		goto bad;
-
-	if (auio.uio_resid) {
-		error = 0;
-#ifdef notdef
-		error = EMSGSIZE;
-		goto bad;
-#endif
-	}
-
-	/*
-	 * XXX: Break apart the control message, and retrieve the
-	 * received file descriptor.  Note that more than one descriptor
-	 * may have been received, or that the rights chain may have more
-	 * than a single mbuf in it.  What to do?
-	 */
-	cmsg = mtod(cm, struct cmsghdr *);
-	if (cmsg->cmsg_len < CMSG_LEN(0)) {
-		error = EMSGSIZE;
-		goto bad;
-	}
-	newfds = (cmsg->cmsg_len - sizeof(*cmsg)) / sizeof (int);
-	if (newfds == 0) {
-		error = ECONNREFUSED;
-		goto bad;
-	}
-	/*
-	 * At this point the rights message consists of a control message
-	 * header, followed by a data region containing a vector of
-	 * integer file descriptors.  The fds were allocated by the action
-	 * of receiving the control message.
-	 */
-	ip = (int *)CMSG_DATA(cmsg);
-	fd = *ip++;
-	if (newfds > 1) {
-		/*
-		 * Close extra fds.
-		 */
-		int i;
-		printf("portal_open: %d extra fds\n", newfds - 1);
-		for (i = 1; i < newfds; i++) {
-			portal_closefd(p, *ip);
-			ip++;
-		}
-	}
-
-	/*
-	 * Check that the mode the file is being opened for is a subset 
-	 * of the mode of the existing descriptor.
-	 */
-	if ((fp = fd_getfile(p->p_fd, fd)) == NULL) {
-		error = EBADF;
-		goto bad;
-	}
-	if (((ap->a_mode & (FREAD|FWRITE)) | fp->f_flag) != fp->f_flag) {
-		portal_closefd(p, fd);
-		error = EACCES;
-		goto bad;
-	}
-
-	/*
-	 * Save the dup fd in the proc structure then return the
-	 * special error code (ENXIO) which causes magic things to
-	 * happen in vn_open.  The whole concept is, well, hmmm.
-	 */
-	p->p_dupfd = fd;
-	error = ENXIO;
-
-bad:;
-	/*
-	 * And discard the control message.
-	 */
-	if (cm) { 
-		m_freem(cm);
-	}
-
-	if (so) {
-		soshutdown(so, 2);
-		soclose(so);
-	}
-	return (error);
-}
-
-int
-portal_getattr(void *v)
-{
-	struct vop_getattr_args *ap = v;
-	struct vnode *vp = ap->a_vp;
-	struct vattr *vap = ap->a_vap;
-
-	bzero(vap, sizeof(*vap));
-	vattr_null(vap);
-	vap->va_uid = 0;
-	vap->va_gid = 0;
-	vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
-	vap->va_size = DEV_BSIZE;
-	vap->va_blocksize = DEV_BSIZE;
-	getnanotime(&vap->va_atime);
-	vap->va_mtime = vap->va_atime;
-	vap->va_ctime = vap->va_atime;
-	vap->va_gen = 0;
-	vap->va_flags = 0;
-	vap->va_rdev = 0;
-	/* vap->va_qbytes = 0; */
-	vap->va_bytes = 0;
-	/* vap->va_qsize = 0; */
-	if (vp->v_flag & VROOT) {
-		vap->va_type = VDIR;
-		vap->va_mode = S_IRUSR|S_IWUSR|S_IXUSR|
-				S_IRGRP|S_IWGRP|S_IXGRP|
-				S_IROTH|S_IWOTH|S_IXOTH;
-		vap->va_nlink = 2;
-		vap->va_fileid = 2;
-	} else {
-		vap->va_type = VREG;
-		vap->va_mode = S_IRUSR|S_IWUSR|
-				S_IRGRP|S_IWGRP|
-				S_IROTH|S_IWOTH;
-		vap->va_nlink = 1;
-		vap->va_fileid = VTOPORTAL(vp)->pt_fileid;
-	}
-	return (0);
-}
-
-int
-portal_setattr(void *v)
-{
-	struct vop_setattr_args *ap = v;
-
-	/*
-	 * Can't mess with the root vnode
-	 */
-	if (ap->a_vp->v_flag & VROOT)
-		return (EACCES);
-
-	if (ap->a_vap->va_flags != VNOVAL)
-		return (EOPNOTSUPP);
-
-	return (0);
-}
-
-/*
- * Fake readdir, just return empty directory.
- * It is hard to deal with '.' and '..' so don't bother.
- */
-/*ARGSUSED*/
-int
-portal_readdir(void *v)
-{
- 	return (0);
-}
-
-/*ARGSUSED*/
-int
-portal_inactive(void *v)
-{
- 	struct vop_inactive_args *ap = v;
-
-	VOP_UNLOCK(ap->a_vp, 0, ap->a_p);
-	return (0);
-}
-
-int
-portal_reclaim(void *v)
-{
-	struct vop_reclaim_args *ap = v;
-	struct portalnode *pt = VTOPORTAL(ap->a_vp);
-
-	if (pt->pt_arg) {
-		free(pt->pt_arg, M_TEMP);
-		pt->pt_arg = 0;
-	}
-	free(ap->a_vp->v_data, M_TEMP);
-	ap->a_vp->v_data = 0;
-
-	return (0);
-}
-
-/*
- * Return POSIX pathconf information applicable to special devices.
- */
-int
-portal_pathconf(void *v)
-{
-	struct vop_pathconf_args *ap = v;
-
-	switch (ap->a_name) {
-	case _PC_LINK_MAX:
-		*ap->a_retval = LINK_MAX;
-		return (0);
-	case _PC_MAX_CANON:
-		*ap->a_retval = MAX_CANON;
-		return (0);
-	case _PC_MAX_INPUT:
-		*ap->a_retval = MAX_INPUT;
-		return (0);
-	case _PC_PIPE_BUF:
-		*ap->a_retval = PIPE_BUF;
-		return (0);
-	case _PC_CHOWN_RESTRICTED:
-		*ap->a_retval = 1;
-		return (0);
-	case _PC_VDISABLE:
-		*ap->a_retval = _POSIX_VDISABLE;
-		return (0);
-	default:
-		return (EINVAL);
-	}
-	/* NOTREACHED */
-}
-
-/*
- * Print out the contents of a Portal vnode.
- */
-/* ARGSUSED */
-int
-portal_print(void *v)
-{
-	printf("tag VT_PORTAL, portal vnode\n");
-	return (0);
-}
-
-int
-portal_link(void *v) 
-{
-	struct vop_link_args *ap = v;
- 
-	VOP_ABORTOP(ap->a_dvp, ap->a_cnp);
-	vput(ap->a_dvp);
-	return (EROFS);
-}
-
-int
-portal_symlink(void *v)
-{
-	struct vop_symlink_args *ap = v;
-  
-	VOP_ABORTOP(ap->a_dvp, ap->a_cnp);
-	vput(ap->a_dvp);
-	return (EROFS);
-}
-
-int
-portal_badop(void *v)
-{
-	panic ("portal: bad op");
-	return (0);
-}
-
-int
-portal_poll(void *v)
-{
-	struct vop_poll_args *ap = v;
-
-	return (ap->a_events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM));
-}