Add the experimental nfs subtree to the kernel, that includes

	support for NFSv4 as well as NFSv2 and 3.
	It lives in 3 subdirs under sys/fs:
	nfs - functions that are common to the client and server
	nfsclient - a mutation of sys/nfsclient that call generic functions
	to do RPCs and handle state. As such, it retains the
	buffer cache handling characteristics and vnode semantics that
	are found in sys/nfsclient, for the most part.
	nfsserver - the server. It includes a DRC designed specifically for
	NFSv4, that is used instead of the generic DRC in sys/rpc.
	The build glue will be checked in later, so at this point, it
	consists of 3 new subdirs that should not affect kernel building.

Approved by:	kib (mentor)

1 files changed, 2021 insertions, 0 deletions

diff --git a/sys/fs/nfsserver/nfs_nfsdsubs.c b/sys/fs/nfsserver/nfs_nfsdsubs.c
new file mode 100644
index 0000000..51f367a
--- /dev/null
+++ b/sys/fs/nfsserver/nfs_nfsdsubs.c
@@ -0,0 +1,2021 @@
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * 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.
+ * 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.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef APPLEKEXT
+/*
+ * These functions support the macros and help fiddle mbuf chains for
+ * the nfs op functions. They do things like create the rpc header and
+ * copy data between mbuf chains and uio lists.
+ */
+#include <fs/nfs/nfsport.h>
+
+extern u_int32_t newnfs_true, newnfs_false;
+extern int nfs_pubfhset;
+extern struct nfsclienthashhead nfsclienthash[NFSCLIENTHASHSIZE];
+extern struct nfslockhashhead nfslockhash[NFSLOCKHASHSIZE];
+extern int nfsrv_useacl;
+extern uid_t nfsrv_defaultuid;
+extern gid_t nfsrv_defaultgid;
+
+char nfs_v2pubfh[NFSX_V2FH];
+static nfstype newnfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK,
+    NFNON, NFCHR, NFNON };
+extern nfstype nfsv34_type[9];
+#endif	/* !APPLEKEXT */
+
+static char nfsrv_hexdigit(char, int *);
+
+/*
+ * Maps errno values to nfs error numbers.
+ * Use NFSERR_IO as the catch all for ones not specifically defined in
+ * RFC 1094.
+ */
+static u_char nfsrv_v2errmap[ELAST] = {
+  NFSERR_PERM,	NFSERR_NOENT,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_NXIO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_ACCES,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_EXIST,	NFSERR_IO,	NFSERR_NODEV,	NFSERR_NOTDIR,
+  NFSERR_ISDIR,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_FBIG,	NFSERR_NOSPC,	NFSERR_IO,	NFSERR_ROFS,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_NAMETOL,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_NOTEMPTY, NFSERR_IO,	NFSERR_IO,	NFSERR_DQUOT,	NFSERR_STALE,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,	NFSERR_IO,
+  NFSERR_IO,
+};
+
+/*
+ * Maps errno values to nfs error numbers.
+ * Although it is not obvious whether or not NFS clients really care if
+ * a returned error value is in the specified list for the procedure, the
+ * safest thing to do is filter them appropriately. For Version 2, the
+ * X/Open XNFS document is the only specification that defines error values
+ * for each RPC (The RFC simply lists all possible error values for all RPCs),
+ * so I have decided to not do this for Version 2.
+ * The first entry is the default error return and the rest are the valid
+ * errors for that RPC in increasing numeric order.
+ */
+static short nfsv3err_null[] = {
+	0,
+	0,
+};
+
+static short nfsv3err_getattr[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_setattr[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_PERM,
+	NFSERR_IO,
+	NFSERR_INVAL,
+	NFSERR_NOSPC,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOT_SYNC,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_lookup[] = {
+	NFSERR_IO,
+	NFSERR_NOENT,
+	NFSERR_ACCES,
+	NFSERR_NAMETOL,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_access[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_readlink[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_INVAL,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_read[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_NXIO,
+	NFSERR_ACCES,
+	NFSERR_INVAL,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_write[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_NOSPC,
+	NFSERR_INVAL,
+	NFSERR_FBIG,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_create[] = {
+	NFSERR_IO,
+	NFSERR_EXIST,
+	NFSERR_NAMETOL,
+	NFSERR_ACCES,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_NOSPC,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_mkdir[] = {
+	NFSERR_IO,
+	NFSERR_EXIST,
+	NFSERR_ACCES,
+	NFSERR_NAMETOL,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_NOSPC,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_symlink[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_EXIST,
+	NFSERR_NAMETOL,
+	NFSERR_NOSPC,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_mknod[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_EXIST,
+	NFSERR_NAMETOL,
+	NFSERR_NOSPC,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_ROFS,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	NFSERR_BADTYPE,
+	0,
+};
+
+static short nfsv3err_remove[] = {
+	NFSERR_IO,
+	NFSERR_NOENT,
+	NFSERR_ACCES,
+	NFSERR_NAMETOL,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_ROFS,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_rmdir[] = {
+	NFSERR_IO,
+	NFSERR_NOENT,
+	NFSERR_ACCES,
+	NFSERR_NOTDIR,
+	NFSERR_NAMETOL,
+	NFSERR_IO,
+	NFSERR_EXIST,
+	NFSERR_INVAL,
+	NFSERR_ROFS,
+	NFSERR_NOTEMPTY,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_rename[] = {
+	NFSERR_IO,
+	NFSERR_NOENT,
+	NFSERR_ACCES,
+	NFSERR_EXIST,
+	NFSERR_NAMETOL,
+	NFSERR_XDEV,
+	NFSERR_IO,
+	NFSERR_NOTDIR,
+	NFSERR_ISDIR,
+	NFSERR_INVAL,
+	NFSERR_NOSPC,
+	NFSERR_ROFS,
+	NFSERR_MLINK,
+	NFSERR_NOTEMPTY,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_link[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_EXIST,
+	NFSERR_NAMETOL,
+	NFSERR_IO,
+	NFSERR_XDEV,
+	NFSERR_NOTDIR,
+	NFSERR_INVAL,
+	NFSERR_NOSPC,
+	NFSERR_ROFS,
+	NFSERR_MLINK,
+	NFSERR_DQUOT,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_readdir[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_NOTDIR,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_BAD_COOKIE,
+	NFSERR_TOOSMALL,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_readdirplus[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_NOTDIR,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_BAD_COOKIE,
+	NFSERR_NOTSUPP,
+	NFSERR_TOOSMALL,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_fsstat[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_fsinfo[] = {
+	NFSERR_STALE,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_pathconf[] = {
+	NFSERR_STALE,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short nfsv3err_commit[] = {
+	NFSERR_IO,
+	NFSERR_IO,
+	NFSERR_STALE,
+	NFSERR_BADHANDLE,
+	NFSERR_SERVERFAULT,
+	NFSERR_DELAY,
+	0,
+};
+
+static short *nfsrv_v3errmap[] = {
+	nfsv3err_null,
+	nfsv3err_getattr,
+	nfsv3err_setattr,
+	nfsv3err_lookup,
+	nfsv3err_access,
+	nfsv3err_readlink,
+	nfsv3err_read,
+	nfsv3err_write,
+	nfsv3err_create,
+	nfsv3err_mkdir,
+	nfsv3err_symlink,
+	nfsv3err_mknod,
+	nfsv3err_remove,
+	nfsv3err_rmdir,
+	nfsv3err_rename,
+	nfsv3err_link,
+	nfsv3err_readdir,
+	nfsv3err_readdirplus,
+	nfsv3err_fsstat,
+	nfsv3err_fsinfo,
+	nfsv3err_pathconf,
+	nfsv3err_commit,
+};
+
+/*
+ * And the same for V4.
+ */
+static short nfsv4err_null[] = {
+	0,
+	0,
+};
+
+static short nfsv4err_access[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_close[] = {
+	NFSERR_EXPIRED,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADSEQID,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKSHELD,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_OLDSTATEID,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_commit[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_ISDIR,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_create[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ATTRNOTSUPP,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADOWNER,
+	NFSERR_BADTYPE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXIST,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_NOTDIR,
+	NFSERR_PERM,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_delegpurge[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADXDR,
+	NFSERR_NOTSUPP,
+	NFSERR_LEASEMOVED,
+	NFSERR_MOVED,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALECLIENTID,
+	0,
+};
+
+static short nfsv4err_delegreturn[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_EXPIRED,
+	NFSERR_INVAL,
+	NFSERR_LEASEMOVED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_OLDSTATEID,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_getattr[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_getfh[] = {
+	NFSERR_BADHANDLE,
+	NFSERR_BADHANDLE,
+	NFSERR_FHEXPIRED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_link[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXIST,
+	NFSERR_FHEXPIRED,
+	NFSERR_FILEOPEN,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_ISDIR,
+	NFSERR_MLINK,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_NOTDIR,
+	NFSERR_NOTSUPP,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_WRONGSEC,
+	NFSERR_XDEV,
+	0,
+};
+
+static short nfsv4err_lock[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADRANGE,
+	NFSERR_BADSEQID,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_DEADLOCK,
+	NFSERR_DELAY,
+	NFSERR_DENIED,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKNOTSUPP,
+	NFSERR_LOCKRANGE,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOGRACE,
+	NFSERR_OLDSTATEID,
+	NFSERR_OPENMODE,
+	NFSERR_RECLAIMBAD,
+	NFSERR_RECLAIMCONFLICT,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALECLIENTID,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_lockt[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BADRANGE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DENIED,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKRANGE,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALECLIENTID,
+	0,
+};
+
+static short nfsv4err_locku[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADRANGE,
+	NFSERR_BADSEQID,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKRANGE,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_OLDSTATEID,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_lookup[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADXDR,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTDIR,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_SYMLINK,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_lookupp[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_FHEXPIRED,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTDIR,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_nverify[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ATTRNOTSUPP,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SAME,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_open[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_ATTRNOTSUPP,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADOWNER,
+	NFSERR_BADSEQID,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXIST,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_IO,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOGRACE,
+	NFSERR_NOSPC,
+	NFSERR_NOTDIR,
+	NFSERR_NOTSUPP,
+	NFSERR_PERM,
+	NFSERR_RECLAIMBAD,
+	NFSERR_RECLAIMCONFLICT,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_SHAREDENIED,
+	NFSERR_STALE,
+	NFSERR_STALECLIENTID,
+	NFSERR_SYMLINK,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_openattr[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_FHEXPIRED,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_NOTSUPP,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_openconfirm[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADSEQID,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_OLDSTATEID,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_opendowngrade[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADSEQID,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_OLDSTATEID,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_putfh[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_FHEXPIRED,
+	NFSERR_MOVED,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_putpubfh[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_putrootfh[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_read[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_EXPIRED,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_IO,
+	NFSERR_INVAL,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NXIO,
+	NFSERR_OLDSTATEID,
+	NFSERR_OPENMODE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_readdir[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_BAD_COOKIE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTDIR,
+	NFSERR_NOTSAME,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_TOOSMALL,
+	0,
+};
+
+static short nfsv4err_readlink[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADHANDLE,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_ISDIR,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTSUPP,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_remove[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_FILEOPEN,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTDIR,
+	NFSERR_NOTEMPTY,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_rename[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXIST,
+	NFSERR_FHEXPIRED,
+	NFSERR_FILEOPEN,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_NOTDIR,
+	NFSERR_NOTEMPTY,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_WRONGSEC,
+	NFSERR_XDEV,
+	0,
+};
+
+static short nfsv4err_renew[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADXDR,
+	NFSERR_CBPATHDOWN,
+	NFSERR_EXPIRED,
+	NFSERR_LEASEMOVED,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALECLIENTID,
+	0,
+};
+
+static short nfsv4err_restorefh[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADHANDLE,
+	NFSERR_FHEXPIRED,
+	NFSERR_MOVED,
+	NFSERR_RESOURCE,
+	NFSERR_RESTOREFH,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_WRONGSEC,
+	0,
+};
+
+static short nfsv4err_savefh[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADHANDLE,
+	NFSERR_FHEXPIRED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_secinfo[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADNAME,
+	NFSERR_BADXDR,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_MOVED,
+	NFSERR_NAMETOL,
+	NFSERR_NOENT,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTDIR,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_setattr[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_ATTRNOTSUPP,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADOWNER,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXPIRED,
+	NFSERR_FBIG,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_ISDIR,
+	NFSERR_LOCKED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_OLDSTATEID,
+	NFSERR_OPENMODE,
+	NFSERR_PERM,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_setclientid[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADXDR,
+	NFSERR_CLIDINUSE,
+	NFSERR_INVAL,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	0,
+};
+
+static short nfsv4err_setclientidconfirm[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_BADXDR,
+	NFSERR_CLIDINUSE,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALECLIENTID,
+	0,
+};
+
+static short nfsv4err_verify[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ACCES,
+	NFSERR_ATTRNOTSUPP,
+	NFSERR_BADCHAR,
+	NFSERR_BADHANDLE,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_FHEXPIRED,
+	NFSERR_INVAL,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOTSAME,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	0,
+};
+
+static short nfsv4err_write[] = {
+	NFSERR_IO,
+	NFSERR_ACCES,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADHANDLE,
+	NFSERR_BADSTATEID,
+	NFSERR_BADXDR,
+	NFSERR_DELAY,
+	NFSERR_DQUOT,
+	NFSERR_EXPIRED,
+	NFSERR_FBIG,
+	NFSERR_FHEXPIRED,
+	NFSERR_GRACE,
+	NFSERR_INVAL,
+	NFSERR_IO,
+	NFSERR_ISDIR,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKED,
+	NFSERR_MOVED,
+	NFSERR_NOFILEHANDLE,
+	NFSERR_NOSPC,
+	NFSERR_NXIO,
+	NFSERR_OLDSTATEID,
+	NFSERR_OPENMODE,
+	NFSERR_RESOURCE,
+	NFSERR_ROFS,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALE,
+	NFSERR_STALESTATEID,
+	0,
+};
+
+static short nfsv4err_releaselockowner[] = {
+	NFSERR_SERVERFAULT,
+	NFSERR_ADMINREVOKED,
+	NFSERR_BADXDR,
+	NFSERR_EXPIRED,
+	NFSERR_LEASEMOVED,
+	NFSERR_LOCKSHELD,
+	NFSERR_RESOURCE,
+	NFSERR_SERVERFAULT,
+	NFSERR_STALECLIENTID,
+	0,
+};
+
+static short *nfsrv_v4errmap[] = {
+	nfsv4err_null,
+	nfsv4err_null,
+	nfsv4err_null,
+	nfsv4err_access,
+	nfsv4err_close,
+	nfsv4err_commit,
+	nfsv4err_create,
+	nfsv4err_delegpurge,
+	nfsv4err_delegreturn,
+	nfsv4err_getattr,
+	nfsv4err_getfh,
+	nfsv4err_link,
+	nfsv4err_lock,
+	nfsv4err_lockt,
+	nfsv4err_locku,
+	nfsv4err_lookup,
+	nfsv4err_lookupp,
+	nfsv4err_nverify,
+	nfsv4err_open,
+	nfsv4err_openattr,
+	nfsv4err_openconfirm,
+	nfsv4err_opendowngrade,
+	nfsv4err_putfh,
+	nfsv4err_putpubfh,
+	nfsv4err_putrootfh,
+	nfsv4err_read,
+	nfsv4err_readdir,
+	nfsv4err_readlink,
+	nfsv4err_remove,
+	nfsv4err_rename,
+	nfsv4err_renew,
+	nfsv4err_restorefh,
+	nfsv4err_savefh,
+	nfsv4err_secinfo,
+	nfsv4err_setattr,
+	nfsv4err_setclientid,
+	nfsv4err_setclientidconfirm,
+	nfsv4err_verify,
+	nfsv4err_write,
+	nfsv4err_releaselockowner,
+};
+
+/*
+ * A fiddled version of m_adj() that ensures null fill to a long
+ * boundary and only trims off the back end
+ */
+APPLESTATIC void
+nfsrv_adj(mbuf_t mp, int len, int nul)
+{
+	mbuf_t m;
+	int count, i;
+	char *cp;
+
+	/*
+	 * Trim from tail.  Scan the mbuf chain,
+	 * calculating its length and finding the last mbuf.
+	 * If the adjustment only affects this mbuf, then just
+	 * adjust and return.  Otherwise, rescan and truncate
+	 * after the remaining size.
+	 */
+	count = 0;
+	m = mp;
+	for (;;) {
+		count += mbuf_len(m);
+		if (mbuf_next(m) == NULL)
+			break;
+		m = mbuf_next(m);
+	}
+	if (mbuf_len(m) > len) {
+		mbuf_setlen(m, mbuf_len(m) - len);
+		if (nul > 0) {
+			cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
+			for (i = 0; i < nul; i++)
+				*cp++ = '\0';
+		}
+		return;
+	}
+	count -= len;
+	if (count < 0)
+		count = 0;
+	/*
+	 * Correct length for chain is "count".
+	 * Find the mbuf with last data, adjust its length,
+	 * and toss data from remaining mbufs on chain.
+	 */
+	for (m = mp; m; m = mbuf_next(m)) {
+		if (mbuf_len(m) >= count) {
+			mbuf_setlen(m, count);
+			if (nul > 0) {
+				cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
+				for (i = 0; i < nul; i++)
+					*cp++ = '\0';
+			}
+			break;
+		}
+		count -= mbuf_len(m);
+	}
+	for (m = mbuf_next(m); m; m = mbuf_next(m))
+		mbuf_setlen(m, 0);
+}
+
+/*
+ * Make these functions instead of macros, so that the kernel text size
+ * doesn't get too big...
+ */
+APPLESTATIC void
+nfsrv_wcc(struct nfsrv_descript *nd, int before_ret,
+    struct nfsvattr *before_nvap, int after_ret, struct nfsvattr *after_nvap)
+{
+	u_int32_t *tl;
+
+	if (before_ret) {
+		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+		*tl = newnfs_false;
+	} else {
+		NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
+		*tl++ = newnfs_true;
+		txdr_hyper(before_nvap->na_size, tl);
+		tl += 2;
+		txdr_nfsv3time(&(before_nvap->na_mtime), tl);
+		tl += 2;
+		txdr_nfsv3time(&(before_nvap->na_ctime), tl);
+	}
+	nfsrv_postopattr(nd, after_ret, after_nvap);
+}
+
+APPLESTATIC void
+nfsrv_postopattr(struct nfsrv_descript *nd, int after_ret,
+    struct nfsvattr *after_nvap)
+{
+	u_int32_t *tl;
+
+	NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+	if (after_ret)
+		*tl = newnfs_false;
+	else {
+		*tl = newnfs_true;
+		nfsrv_fillattr(nd, after_nvap);
+	}
+}
+
+/*
+ * Fill in file attributes for V2 and 3. For V4, call a separate
+ * routine that sifts through all the attribute bits.
+ */
+APPLESTATIC void
+nfsrv_fillattr(struct nfsrv_descript *nd, struct nfsvattr *nvap)
+{
+	struct nfs_fattr *fp;
+	int fattr_size;
+
+	/*
+	 * Build space for the attribute structure.
+	 */
+	if (nd->nd_flag & ND_NFSV3)
+		fattr_size = NFSX_V3FATTR;
+	else
+		fattr_size = NFSX_V2FATTR;
+	NFSM_BUILD(fp, struct nfs_fattr *, fattr_size);
+
+	/*
+	 * Now just fill it all in.
+	 */
+	fp->fa_nlink = txdr_unsigned(nvap->na_nlink);
+	fp->fa_uid = txdr_unsigned(nvap->na_uid);
+	fp->fa_gid = txdr_unsigned(nvap->na_gid);
+	if (nd->nd_flag & ND_NFSV3) {
+		fp->fa_type = vtonfsv34_type(nvap->na_type);
+		fp->fa_mode = vtonfsv34_mode(nvap->na_mode);
+		txdr_hyper(nvap->na_size, &fp->fa3_size);
+		txdr_hyper(nvap->na_bytes, &fp->fa3_used);
+		fp->fa3_rdev.specdata1 = txdr_unsigned(NFSMAJOR(nvap->na_rdev));
+		fp->fa3_rdev.specdata2 = txdr_unsigned(NFSMINOR(nvap->na_rdev));
+		fp->fa3_fsid.nfsuquad[0] = 0;
+		fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(nvap->na_fsid);
+		fp->fa3_fileid.nfsuquad[0] = 0;
+		fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(nvap->na_fileid);
+		txdr_nfsv3time(&nvap->na_atime, &fp->fa3_atime);
+		txdr_nfsv3time(&nvap->na_mtime, &fp->fa3_mtime);
+		txdr_nfsv3time(&nvap->na_ctime, &fp->fa3_ctime);
+	} else {
+		fp->fa_type = vtonfsv2_type(nvap->na_type);
+		fp->fa_mode = vtonfsv2_mode(nvap->na_type, nvap->na_mode);
+		fp->fa2_size = txdr_unsigned(nvap->na_size);
+		fp->fa2_blocksize = txdr_unsigned(nvap->na_blocksize);
+		if (nvap->na_type == VFIFO)
+			fp->fa2_rdev = 0xffffffff;
+		else
+			fp->fa2_rdev = txdr_unsigned(nvap->na_rdev);
+		fp->fa2_blocks = txdr_unsigned(nvap->na_bytes / NFS_FABLKSIZE);
+		fp->fa2_fsid = txdr_unsigned(nvap->na_fsid);
+		fp->fa2_fileid = txdr_unsigned(nvap->na_fileid);
+		txdr_nfsv2time(&nvap->na_atime, &fp->fa2_atime);
+		txdr_nfsv2time(&nvap->na_mtime, &fp->fa2_mtime);
+		txdr_nfsv2time(&nvap->na_ctime, &fp->fa2_ctime);
+	}
+}
+
+/*
+ * This function gets a file handle out of an mbuf list.
+ * It returns 0 for success, EBADRPC otherwise.
+ * If sets the third flagp argument to 1 if the file handle is
+ * the public file handle.
+ * For NFSv4, if the length is incorrect, set nd_repstat == NFSERR_BADHANDLE
+ */
+APPLESTATIC int
+nfsrv_mtofh(struct nfsrv_descript *nd, struct nfsrvfh *fhp)
+{
+	u_int32_t *tl;
+	int error = 0, len, copylen;
+
+	if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+		NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+		len = fxdr_unsigned(int, *tl);
+		if (len == 0 && nfs_pubfhset && (nd->nd_flag & ND_NFSV3) &&
+		    nd->nd_procnum == NFSPROC_LOOKUP) {
+			nd->nd_flag |= ND_PUBLOOKUP;
+			return (0);
+		}
+		if (len < NFSRV_MINFH || len > NFSRV_MAXFH) {
+			if (nd->nd_flag & ND_NFSV4) {
+			    if (len > 0 && len <= NFSX_V4FHMAX) {
+				error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+				if (error)
+					return (error);
+				nd->nd_repstat = NFSERR_BADHANDLE;
+				return (0);
+			    } else {
+				return (EBADRPC);
+			    }
+			} else {
+				return (EBADRPC);
+			}
+		}
+		copylen = len;
+	} else {
+		/*
+		 * For NFSv2, the file handle is always 32 bytes on the
+		 * wire, but this server only cares about the first
+		 * NFSRV_MAXFH bytes.
+		 */
+		len = NFSX_V2FH;
+		copylen = NFSRV_MAXFH;
+	}
+	NFSM_DISSECT(tl, u_int32_t *, len);
+	if ((nd->nd_flag & ND_NFSV2) && nfs_pubfhset &&
+	    nd->nd_procnum == NFSPROC_LOOKUP &&
+	    !NFSBCMP((caddr_t)tl, nfs_v2pubfh, NFSX_V2FH)) {
+		nd->nd_flag |= ND_PUBLOOKUP;
+		return (0);
+	}
+	NFSBCOPY(tl, (caddr_t)fhp->nfsrvfh_data, copylen);
+	fhp->nfsrvfh_len = copylen;
+nfsmout:
+	return (error);
+}
+
+/*
+ * Map errnos to NFS error numbers. For Version 3 and 4 also filter out error
+ * numbers not specified for the associated procedure.
+ * NFSPROC_NOOP is a special case, where the high order bits of nd_repstat
+ * should be cleared. NFSPROC_NOOP is used to return errors when a valid
+ * RPC procedure is not involved.
+ * Returns the error number in XDR.
+ */
+APPLESTATIC int
+nfsd_errmap(struct nfsrv_descript *nd)
+{
+	short *defaulterrp, *errp;
+
+	if (!nd->nd_repstat)
+		return (0);
+	if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+		if (nd->nd_procnum == NFSPROC_NOOP)
+			return (txdr_unsigned(nd->nd_repstat & 0xffff));
+		if (nd->nd_flag & ND_NFSV3)
+		    errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum];
+		else if (nd->nd_repstat == EBADRPC)
+			return (txdr_unsigned(NFSERR_BADXDR));
+		else if (nd->nd_repstat == NFSERR_MINORVERMISMATCH ||
+			 nd->nd_repstat == NFSERR_OPILLEGAL)
+			return (txdr_unsigned(nd->nd_repstat));
+		else
+		    errp = defaulterrp = nfsrv_v4errmap[nd->nd_procnum];
+		while (*++errp)
+			if (*errp == nd->nd_repstat)
+				return (txdr_unsigned(nd->nd_repstat));
+		return (txdr_unsigned(*defaulterrp));
+	}
+	if (nd->nd_repstat <= ELAST)
+		return (txdr_unsigned(nfsrv_v2errmap[nd->nd_repstat - 1]));
+	return (txdr_unsigned(NFSERR_IO));
+}
+
+/*
+ * Check to see if setting a uid/gid is permitted when creating a new
+ * file object. (Called when uid and/or gid is specified in the
+ * settable attributes for V4.
+ */
+APPLESTATIC int
+nfsrv_checkuidgid(struct nfsrv_descript *nd, struct nfsvattr *nvap)
+{
+
+	/*
+	 * If not setting either uid nor gid, it's OK.
+	 */
+	if (NFSVNO_NOTSETUID(nvap) && NFSVNO_NOTSETGID(nvap))
+		return (0);
+	if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid)
+	    || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid))
+		return (NFSERR_BADOWNER);
+	if (nd->nd_cred->cr_uid == 0)
+		return (0);
+	if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid != nd->nd_cred->cr_uid) ||
+	    (NFSVNO_ISSETGID(nvap) && nvap->na_gid != nd->nd_cred->cr_gid &&
+	    !groupmember(nvap->na_gid, nd->nd_cred)))
+		return (NFSERR_PERM);
+	return (0);
+}
+
+/*
+ * and this routine fixes up the settable attributes for V4 if allowed
+ * by nfsrv_checkuidgid().
+ */
+APPLESTATIC void
+nfsrv_fixattr(struct nfsrv_descript *nd, vnode_t vp,
+    struct nfsvattr *nvap, NFSACL_T *aclp, NFSPROC_T *p, nfsattrbit_t *attrbitp,
+    struct nfsexstuff *exp)
+{
+	int change = 0;
+	struct nfsvattr nva;
+	uid_t tuid;
+	int error;
+	nfsattrbit_t nattrbits;
+
+	/*
+	 * Maybe this should be done for V2 and 3 but it never has been
+	 * and nobody seems to be upset, so I think it's best not to change
+	 * the V2 and 3 semantics.
+	 */
+	if ((nd->nd_flag & ND_NFSV4) == 0)
+		return;
+	NFSVNO_ATTRINIT(&nva);
+	NFSZERO_ATTRBIT(&nattrbits);
+	tuid = nd->nd_cred->cr_uid;
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNER) &&
+	    NFSVNO_ISSETUID(nvap) &&
+	    nvap->na_uid != nd->nd_cred->cr_uid) {
+		if (nd->nd_cred->cr_uid == 0) {
+			nva.na_uid = nvap->na_uid;
+			change++;
+			NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNER);
+		} else {
+			NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNER);
+		}
+	}
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEACCESSSET) &&
+	    NFSVNO_ISSETATIME(nvap)) {
+		nva.na_atime = nvap->na_atime;
+		change++;
+		NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEACCESSSET);
+	}
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEMODIFYSET) &&
+	    NFSVNO_ISSETMTIME(nvap)) {
+		nva.na_mtime = nvap->na_mtime;
+		change++;
+		NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEMODIFYSET);
+	}
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP) &&
+	    NFSVNO_ISSETGID(nvap)) {
+		if (nvap->na_gid == nd->nd_cred->cr_gid ||
+		    groupmember(nvap->na_gid, nd->nd_cred)) {
+			nd->nd_cred->cr_uid = 0;
+			nva.na_gid = nvap->na_gid;
+			change++;
+			NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNERGROUP);
+		} else {
+			NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP);
+		}
+	}
+	if (change) {
+		error = nfsvno_setattr(vp, &nva, nd->nd_cred, p, exp);
+		if (error) {
+			NFSCLRALL_ATTRBIT(attrbitp, &nattrbits);
+		}
+	}
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_SIZE) &&
+	    NFSVNO_ISSETSIZE(nvap) && nvap->na_size != (u_quad_t)0) {
+		NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_SIZE);
+	}
+#ifdef NFS4_ACL_EXTATTR_NAME
+	if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_ACL) &&
+	    nfsrv_useacl != 0 && aclp != NULL) {
+		if (aclp->acl_cnt > 0) {
+			error = nfsrv_setacl(vp, aclp, nd->nd_cred, p);
+			if (error) {
+				NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
+			}
+		}
+	} else
+#endif
+	NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
+	nd->nd_cred->cr_uid = tuid;
+}
+
+/*
+ * Translate an ASCII hex digit to it's binary value. Return -1 if the
+ * char isn't a hex digit.
+ */
+static char
+nfsrv_hexdigit(char c, int *err)
+{
+
+	*err = 0;
+	if (c >= '0' && c <= '9')
+		return (c - '0');
+	if (c >= 'a' && c <= 'f')
+		return (c - 'a' + ((char)10));
+	if (c >= 'A' && c <= 'F')
+		return (c - 'A' + ((char)10));
+	/* Not valid ! */
+	*err = 1;
+	return (1);	/* BOGUS */
+}
+
+/*
+ * Check to see if NFSERR_MOVED can be returned for this op. Return 1 iff
+ * it can be.
+ */
+APPLESTATIC int
+nfsrv_errmoved(int op)
+{
+	short *errp;
+
+	errp = nfsrv_v4errmap[op];
+	while (*errp != 0) {
+		if (*errp == NFSERR_MOVED)
+			return (1);
+		errp++;
+	}
+	return (0);
+}
+
+/*
+ * Fill in attributes for a Referral.
+ * (Return the number of bytes of XDR created.)
+ */
+APPLESTATIC int
+nfsrv_putreferralattr(struct nfsrv_descript *nd, nfsattrbit_t *retbitp,
+    struct nfsreferral *refp, int getattr, int *reterrp)
+{
+	u_int32_t *tl, *retnump;
+	u_char *cp, *cp2;
+	int prefixnum, retnum = 0, i, len, bitpos, rderrbit = 0, nonrefbit = 0;
+	int fslocationsbit = 0;
+	nfsattrbit_t tmpbits, refbits;
+
+	NFSREFERRAL_ATTRBIT(&refbits);
+	if (getattr)
+		NFSCLRBIT_ATTRBIT(&refbits, NFSATTRBIT_RDATTRERROR);
+	else if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_RDATTRERROR))
+		rderrbit = 1;
+	if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_FSLOCATIONS))
+		fslocationsbit = 1;
+
+	/*
+	 * Check for the case where unsupported referral attributes are
+	 * requested.
+	 */
+	NFSSET_ATTRBIT(&tmpbits, retbitp);
+	NFSCLRALL_ATTRBIT(&tmpbits, &refbits);
+	if (NFSNONZERO_ATTRBIT(&tmpbits))
+		nonrefbit = 1;
+
+	if (nonrefbit && !fslocationsbit && (getattr || !rderrbit)) {
+		*reterrp = NFSERR_MOVED;
+		return (0);
+	}
+
+	/*
+	 * Now we can fill in the attributes.
+	 */
+	NFSSET_ATTRBIT(&tmpbits, retbitp);
+	NFSCLRNOT_ATTRBIT(&tmpbits, &refbits);
+
+	/*
+	 * Put out the attribute bitmap for the ones being filled in
+	 * and get the field for the number of attributes returned.
+	 */
+	prefixnum = nfsrv_putattrbit(nd, &tmpbits);
+	NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED);
+	prefixnum += NFSX_UNSIGNED;
+
+	/*
+	 * Now, loop around filling in the attributes for each bit set.
+	 */
+	for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
+	    if (NFSISSET_ATTRBIT(&tmpbits, bitpos)) {
+		switch (bitpos) {
+		case NFSATTRBIT_TYPE:
+			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+			*tl = txdr_unsigned(NFDIR);
+			retnum += NFSX_UNSIGNED;
+			break;
+		case NFSATTRBIT_FSID:
+			NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID);
+			*tl++ = 0;
+			*tl++ = txdr_unsigned(NFSV4ROOT_FSID0);
+			*tl++ = 0;
+			*tl = txdr_unsigned(NFSV4ROOT_REFERRAL);
+			retnum += NFSX_V4FSID;
+			break;
+		case NFSATTRBIT_RDATTRERROR:
+			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+			if (nonrefbit)
+				*tl = txdr_unsigned(NFSERR_MOVED);
+			else
+				*tl = 0;
+			retnum += NFSX_UNSIGNED;
+			break;
+		case NFSATTRBIT_FSLOCATIONS:
+			retnum += nfsm_strtom(nd, "/", 1);
+			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+			*tl = txdr_unsigned(refp->nfr_srvcnt);
+			retnum += NFSX_UNSIGNED;
+			cp = refp->nfr_srvlist;
+			for (i = 0; i < refp->nfr_srvcnt; i++) {
+				NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+				*tl = txdr_unsigned(1);
+				retnum += NFSX_UNSIGNED;
+				cp2 = STRCHR(cp, ':');
+				if (cp2 != NULL)
+					len = cp2 - cp;
+				else
+					len = 1;
+				retnum += nfsm_strtom(nd, cp, len);
+				if (cp2 != NULL)
+					cp = cp2 + 1;
+				cp2 = STRCHR(cp, ',');
+				if (cp2 != NULL)
+					len = cp2 - cp;
+				else
+					len = strlen(cp);
+				retnum += nfsm_strtom(nd, cp, len);
+				if (cp2 != NULL)
+					cp = cp2 + 1;
+			}
+			break;
+		case NFSATTRBIT_MOUNTEDONFILEID:
+			NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+			*tl++ = 0;
+			*tl = txdr_unsigned(refp->nfr_dfileno);
+			retnum += NFSX_HYPER;
+			break;
+		default:
+			printf("EEK! Bad V4 refattr bitpos=%d\n", bitpos);
+		};
+	    }
+	}
+	*retnump = txdr_unsigned(retnum);
+	return (retnum + prefixnum);
+}
+
+/*
+ * Parse a file name out of a request.
+ */
+APPLESTATIC int
+nfsrv_parsename(struct nfsrv_descript *nd, char *bufp, u_long *hashp,
+    NFSPATHLEN_T *outlenp)
+{
+	char *fromcp, *tocp, val = '\0';
+	mbuf_t md;
+	int i;
+	int rem, len, error = 0, pubtype = 0, outlen = 0, percent = 0;
+	char digit;
+	u_int32_t *tl;
+	u_long hash = 0;
+
+	if (hashp != NULL)
+		*hashp = 0;
+	tocp = bufp;
+	/*
+	 * For V4, check for lookup parent.
+	 * Otherwise, get the component name.
+	 */
+	if ((nd->nd_flag & ND_NFSV4) && nd->nd_procnum == NFSV4OP_LOOKUPP) {
+	    *tocp++ = '.';
+	    hash += ((u_char)'.');
+	    *tocp++ = '.';
+	    hash += ((u_char)'.');
+	    outlen = 2;
+	} else {
+	    /*
+	     * First, get the name length.
+	     */
+	    NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+	    len = fxdr_unsigned(int, *tl);
+	    if (len > NFS_MAXNAMLEN) {
+		nd->nd_repstat = NFSERR_NAMETOL;
+		return (0);
+	    } else if (len <= 0) {
+		nd->nd_repstat = NFSERR_INVAL;
+		return (0);
+	    }
+
+	    /*
+	     * Now, copy the component name into the buffer.
+	     */
+	    fromcp = nd->nd_dpos;
+	    md = nd->nd_md;
+	    rem = NFSMTOD(md, caddr_t) + mbuf_len(md) - fromcp;
+	    for (i = 0; i < len; i++) {
+		while (rem == 0) {
+			md = mbuf_next(md);
+			if (md == NULL)
+				return (EBADRPC);
+			fromcp = NFSMTOD(md, caddr_t);
+			rem = mbuf_len(md);
+		}
+		if (*fromcp == '\0') {
+			nd->nd_repstat = EACCES;
+			return (0);
+		}
+		/*
+		 * For lookups on the public filehandle, do some special
+		 * processing on the name. (The public file handle is the
+		 * root of the public file system for this server.)
+		 */
+		if (nd->nd_flag & ND_PUBLOOKUP) {
+			/*
+			 * If the first char is ASCII, it is a canonical
+			 * path, otherwise it is a native path. (RFC2054
+			 * doesn't actually state what it is if the first
+			 * char isn't ASCII or 0x80, so I assume native.)
+			 * pubtype == 1 -> native path
+			 * pubtype == 2 -> canonical path
+			 */
+			if (i == 0) {
+				if (*fromcp & 0x80) {
+					/*
+					 * Since RFC2054 doesn't indicate
+					 * that a native path of just 0x80
+					 * isn't allowed, I'll replace the
+					 * 0x80 with '/' instead of just
+					 * throwing it away.
+					 */
+					*fromcp = '/';
+					pubtype = 1;
+				} else {
+					pubtype = 2;
+				}
+			}
+			/*
+			 * '/' only allowed in a native path
+			 */
+			if (*fromcp == '/' && pubtype != 1) {
+				nd->nd_repstat = EACCES;
+				return (0);
+			}
+
+			/*
+			 * For the special case of 2 hex digits after a
+			 * '%' in an absolute path, calculate the value.
+			 * percent == 1 -> indicates "get first hex digit"
+			 * percent == 2 -> indicates "get second hex digit"
+			 */
+			if (percent > 0) {
+				digit = nfsrv_hexdigit(*fromcp, &error);
+				if (error) {
+					nd->nd_repstat = EACCES;
+					return (0);
+				}
+				if (percent == 1) {
+					val = (digit << 4);
+					percent = 2;
+				} else {
+					val += digit;
+					percent = 0;
+					*tocp++ = val;
+					hash += ((u_char)val);
+					outlen++;
+				}
+			} else {
+				if (*fromcp == '%' && pubtype == 2) {
+					/*
+					 * Must be followed by 2 hex digits
+					 */
+					if ((len - i) < 3) {
+						nd->nd_repstat = EACCES;
+						return (0);
+					}
+					percent = 1;
+				} else {
+					*tocp++ = *fromcp;
+					hash += ((u_char)*fromcp);
+					outlen++;
+				}
+			}
+		} else {
+			/*
+			 * Normal, non lookup on public, name.
+			 */
+			if (*fromcp == '/') {
+				if (nd->nd_flag & ND_NFSV4)
+					nd->nd_repstat = NFSERR_BADNAME;
+				else
+					nd->nd_repstat = EACCES;
+				return (0);
+			}
+			hash += ((u_char)*fromcp);
+			*tocp++ = *fromcp;
+			outlen++;
+		}
+		fromcp++;
+		rem--;
+	    }
+	    nd->nd_md = md;
+	    nd->nd_dpos = fromcp;
+	    i = NFSM_RNDUP(len) - len;
+	    if (i > 0) {
+		if (rem >= i) {
+			nd->nd_dpos += i;
+		} else {
+			error = nfsm_advance(nd, i, rem);
+			if (error)
+				return (error);
+		}
+	    }
+
+	    /*
+	     * For v4, don't allow lookups of '.' or '..' and
+	     * also check for non-utf8 strings.
+	     */
+	    if (nd->nd_flag & ND_NFSV4) {
+		if ((outlen == 1 && bufp[0] == '.') ||
+		    (outlen == 2 && bufp[0] == '.' &&
+		     bufp[1] == '.')) {
+		    nd->nd_repstat = NFSERR_BADNAME;
+		    return (0);
+		}
+		if (nfsrv_checkutf8((u_int8_t *)bufp, outlen)) {
+		    nd->nd_repstat = NFSERR_INVAL;
+		    return (0);
+		}
+	    }
+	}
+	*tocp = '\0';
+	*outlenp = (size_t)outlen;
+	if (hashp != NULL)
+		*hashp = hash;
+nfsmout:
+	return (error);
+}
+
+/*
+ * Check the tcp socket sequence number has been acknowledged.
+ */
+int
+nfsrv_checksockseqnum(struct socket *so, tcp_seq tcpseqval)
+{
+	tcp_seq maxseq, unaseq;
+	int error, ret;
+
+	error = nfsrv_getsocksndseq(so, &maxseq, &unaseq);
+	if (error)
+		return (0);
+	ret = SEQ_GEQ(unaseq, tcpseqval);
+	return (ret);
+}
+
+/*
+ * Get the tcp sequence number to be acknowledged.
+ */
+int
+nfsrv_getsockseqnum(struct socket *so, tcp_seq *tcpseqp)
+{
+	tcp_seq maxseq, unaseq;
+	u_int sbcc;
+	int error;
+
+	sbcc = so->so_snd.sb_cc;
+	error = nfsrv_getsocksndseq(so, &maxseq, &unaseq);
+	if (error)
+		return (0);
+	/*
+	 * Set the seq# to a value that will
+	 * be at least the end of the reply.
+	 * When this sequence# is acknowledged
+	 * by the client, the client has received
+	 * the reply.
+	 */
+	*tcpseqp = sbcc + maxseq;
+	return (1);
+}
+
+void
+nfsd_init(void)
+{
+	int i;
+	static int inited = 0;
+
+	if (inited)
+		return;
+	inited = 1;
+
+	/*
+	 * Initialize client queues. Don't free/reinitialize
+	 * them when nfsds are restarted.
+	 */
+	for (i = 0; i < NFSCLIENTHASHSIZE; i++)
+		LIST_INIT(&nfsclienthash[i]);
+	for (i = 0; i < NFSLOCKHASHSIZE; i++)
+		LIST_INIT(&nfslockhash[i]);
+
+	/* and the v2 pubfh should be all zeros */
+	NFSBZERO(nfs_v2pubfh, NFSX_V2FH);
+}
+