[apple/xnu.git] / bsd / nfs / nqnfs.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1992, 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.
 * 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.
 *
 *	@(#)nqnfs.h	8.3 (Berkeley) 3/30/95
 * FreeBSD-Id: nqnfs.h,v 1.14 1997/08/16 19:16:05 wollman Exp $
 */


#ifndef _NFS_NQNFS_H_
#define _NFS_NQNFS_H_

#include <sys/appleapiopts.h>

#ifdef __APPLE_API_PRIVATE
/*
 * Definitions for NQNFS (Not Quite NFS) cache consistency protocol.
 */

/* Tunable constants */
#define	NQ_CLOCKSKEW	3	/* Clock skew factor (sec) */
#define	NQ_WRITESLACK	5	/* Delay for write cache flushing */
#define	NQ_MAXLEASE	60	/* Max lease duration (sec) */
#define	NQ_MINLEASE	5	/* Min lease duration (sec) */
#define	NQ_DEFLEASE	30	/* Default lease duration (sec) */
#define	NQ_RENEWAL	3	/* Time before expiry (sec) to renew */
#define	NQ_TRYLATERDEL	15	/* Initial try later delay (sec) */
#define	NQ_MAXNUMLEASE	2048	/* Upper bound on number of server leases */
#define	NQ_DEADTHRESH	NQ_NEVERDEAD	/* Default nm_deadthresh */
#define	NQ_NEVERDEAD	9	/* Greater than max. nm_timeouts */
#define	NQLCHSZ		256	/* Server hash table size */

#define	NQNFS_PROG	300105	/* As assigned by Sun */
#define	NQNFS_VER3	3
#define	NQNFS_EVICTSIZ	156	/* Size of eviction request in bytes */

/*
 * Definitions used for saving the "last lease expires" time in Non-volatile
 * RAM on the server. The default definitions below assume that NOVRAM is not
 * available.
 */
#ifdef HASNVRAM
#  undef HASNVRAM
#endif
#define	NQSTORENOVRAM(t)
#define	NQLOADNOVRAM(t)

/*
 * Defn and structs used on the server to maintain state for current leases.
 * The list of host(s) that hold the lease are kept as nqhost structures.
 * The first one lives in nqlease and any others are held in a linked
 * list of nqm structures hanging off of nqlease.
 *
 * Each nqlease structure is chained into two lists. The first is a list
 * ordered by increasing expiry time for nqsrv_timer() and the second is a chain
 * hashed on lc_fh.
 */
#define	LC_MOREHOSTSIZ	10

struct nqhost {
	union {
		struct {
			u_short udp_flag;
			u_short	udp_port;
			union nethostaddr udp_haddr;
		} un_udp;
		struct {
			u_short connless_flag;
			u_short connless_spare;
			union nethostaddr connless_haddr;
		} un_connless;
		struct {
			u_short conn_flag;
			u_short conn_spare;
			struct nfssvc_sock *conn_slp;
		} un_conn;
	} lph_un;
};
#define	lph_flag	lph_un.un_udp.udp_flag
#define	lph_port	lph_un.un_udp.udp_port
#define	lph_haddr	lph_un.un_udp.udp_haddr
#define	lph_inetaddr	lph_un.un_udp.udp_haddr.had_inetaddr
#define	lph_claddr	lph_un.un_connless.connless_haddr
#define	lph_nam		lph_un.un_connless.connless_haddr.had_nam
#define	lph_slp		lph_un.un_conn.conn_slp

struct nqlease {
	LIST_ENTRY(nqlease) lc_hash;	/* Fhandle hash list */
	CIRCLEQ_ENTRY(nqlease) lc_timer; /* Timer queue list */
	time_t		lc_expiry;	/* Expiry time (sec) */
	struct nqhost	lc_host;	/* Host that got lease */
	struct nqm	*lc_morehosts;	/* Other hosts that share read lease */
	fsid_t		lc_fsid;	/* Fhandle */
	char		lc_fiddata[MAXFIDSZ];
	struct vnode	*lc_vp;		/* Soft reference to associated vnode */
};
#define	lc_flag		lc_host.lph_un.un_udp.udp_flag

/* lc_flag bits */
#define	LC_VALID	0x0001	/* Host address valid */
#define	LC_WRITE	0x0002	/* Write cache */
#define	LC_NONCACHABLE	0x0004	/* Non-cachable lease */
#define	LC_LOCKED	0x0008	/* Locked */
#define	LC_WANTED	0x0010	/* Lock wanted */
#define	LC_EXPIREDWANTED 0x0020	/* Want lease when expired */
#define	LC_UDP		0x0040	/* Host address for udp socket */
#define	LC_CLTP		0x0080	/* Host address for other connectionless */
#define	LC_LOCAL	0x0100	/* Host is server */
#define	LC_VACATED	0x0200	/* Host has vacated lease */
#define	LC_WRITTEN	0x0400	/* Recently wrote to the leased file */
#define	LC_SREF		0x0800	/* Holds a nfssvc_sock reference */

struct nqm {
	struct nqm	*lpm_next;
	struct nqhost	lpm_hosts[LC_MOREHOSTSIZ];
};

/*
 * Special value for slp for local server calls.
 */
#define	NQLOCALSLP	((struct nfssvc_sock *) -1)

/*
 * Server side macros.
 */
#define	nqsrv_getl(v, l) \
		(void) nqsrv_getlease((v), &nfsd->nd_duration, \
		 ((nfsd->nd_flag & ND_LEASE) ? (nfsd->nd_flag & ND_LEASE) : \
		 ((l) | ND_CHECK)), \
		 slp, procp, nfsd->nd_nam, &cache, &frev, cred)

/*
 * Client side macros that check for a valid lease.
 */
#define	NQNFS_CKINVALID(v, n, f) \
 ((time.tv_sec > (n)->n_expiry && \
 VFSTONFS((v)->v_mount)->nm_timeouts < VFSTONFS((v)->v_mount)->nm_deadthresh) \
  || ((f) == ND_WRITE && ((n)->n_flag & NQNFSWRITE) == 0))

#define	NQNFS_CKCACHABLE(v, f) \
 ((time.tv_sec <= VTONFS(v)->n_expiry || \
  VFSTONFS((v)->v_mount)->nm_timeouts >= VFSTONFS((v)->v_mount)->nm_deadthresh) \
   && (VTONFS(v)->n_flag & NQNFSNONCACHE) == 0 && \
   ((f) == ND_READ || (VTONFS(v)->n_flag & NQNFSWRITE)))

#define	NQNFS_NEEDLEASE(v, p) \
		(time.tv_sec > VTONFS(v)->n_expiry ? \
		 ((VTONFS(v)->n_flag & NQNFSEVICTED) ? 0 : nqnfs_piggy[p]) : \
		 (((time.tv_sec + NQ_RENEWAL) > VTONFS(v)->n_expiry && \
		   nqnfs_piggy[p]) ? \
		   ((VTONFS(v)->n_flag & NQNFSWRITE) ? \
		    ND_WRITE : nqnfs_piggy[p]) : 0))

/*
 * List head for timer queue.
 */
extern CIRCLEQ_HEAD(nqtimerhead, nqlease) nqtimerhead;

/*
 * List head for the file handle hash table.
 */
#define	NQFHHASH(f) \
	(&nqfhhashtbl[(*((u_long *)(f))) & nqfhhash])
extern LIST_HEAD(nqfhhashhead, nqlease) *nqfhhashtbl;
extern u_long nqfhhash;

/*
 * Nqnfs return status numbers.
 */
#define	NQNFS_EXPIRED	500
#define	NQNFS_TRYLATER	501

#if defined(KERNEL)
void	nqnfs_lease_check __P((struct vnode *, struct proc *, struct ucred *, int));
void	nqnfs_lease_updatetime __P((int));
int	nqsrv_getlease __P((struct vnode *, u_long *, int,
			    struct nfssvc_sock *, struct proc *,
			    struct mbuf *, int *, u_quad_t *,
			    struct ucred *));
int	nqnfs_getlease __P((struct vnode *,int,struct ucred *,struct proc *));
int	nqnfs_callback __P((struct nfsmount *,struct mbuf *,struct mbuf *,caddr_t));
int	nqnfs_clientd __P((struct nfsmount *,struct ucred *,struct nfsd_cargs *,int,caddr_t,struct proc *));
struct nfsnode;
void	nqnfs_clientlease __P((struct nfsmount *, struct nfsnode *, int, int, time_t, u_quad_t));
void	nqnfs_serverd __P((void));
int	nqnfsrv_getlease __P((struct nfsrv_descript *, struct nfssvc_sock *, struct proc *, struct mbuf **));
int	nqnfsrv_vacated __P((struct nfsrv_descript *, struct nfssvc_sock *, struct proc *, struct mbuf **));
#endif

#endif /* __APPLE_API_PRIVATE */
#endif /* _NFS_NQNFS_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	26	/*
	27	* Copyright (c) 1992, 1993
	28	* The Regents of the University of California. All rights reserved.
	29	*
	30	* This code is derived from software contributed to Berkeley by
	31	* Rick Macklem at The University of Guelph.
	32	*
	33	* Redistribution and use in source and binary forms, with or without
	34	* modification, are permitted provided that the following conditions
	35	* are met:
	36	* 1. Redistributions of source code must retain the above copyright
	37	* notice, this list of conditions and the following disclaimer.
	38	* 2. Redistributions in binary form must reproduce the above copyright
	39	* notice, this list of conditions and the following disclaimer in the
	40	* documentation and/or other materials provided with the distribution.
	41	* 3. All advertising materials mentioning features or use of this software
	42	* must display the following acknowledgement:
	43	* This product includes software developed by the University of
	44	* California, Berkeley and its contributors.
	45	* 4. Neither the name of the University nor the names of its contributors
	46	* may be used to endorse or promote products derived from this software
	47	* without specific prior written permission.
	48	*
	49	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	50	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	51	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	52	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	53	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	54	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	55	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	56	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	57	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	58	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	59	* SUCH DAMAGE.
	60	*
	61	* @(#)nqnfs.h 8.3 (Berkeley) 3/30/95
	62	* FreeBSD-Id: nqnfs.h,v 1.14 1997/08/16 19:16:05 wollman Exp $
	63	*/
	64
	65
	66	#ifndef _NFS_NQNFS_H_
	67	#define _NFS_NQNFS_H_
	68
9bccf70c A	69	#include <sys/appleapiopts.h>
	70
	71	#ifdef __APPLE_API_PRIVATE
1c79356b A	72	/*
	73	* Definitions for NQNFS (Not Quite NFS) cache consistency protocol.
	74	*/
	75
	76	/* Tunable constants */
	77	#define NQ_CLOCKSKEW 3 /* Clock skew factor (sec) */
	78	#define NQ_WRITESLACK 5 /* Delay for write cache flushing */
	79	#define NQ_MAXLEASE 60 /* Max lease duration (sec) */
	80	#define NQ_MINLEASE 5 /* Min lease duration (sec) */
	81	#define NQ_DEFLEASE 30 /* Default lease duration (sec) */
	82	#define NQ_RENEWAL 3 /* Time before expiry (sec) to renew */
	83	#define NQ_TRYLATERDEL 15 /* Initial try later delay (sec) */
	84	#define NQ_MAXNUMLEASE 2048 /* Upper bound on number of server leases */
	85	#define NQ_DEADTHRESH NQ_NEVERDEAD /* Default nm_deadthresh */
	86	#define NQ_NEVERDEAD 9 /* Greater than max. nm_timeouts */
	87	#define NQLCHSZ 256 /* Server hash table size */
	88
	89	#define NQNFS_PROG 300105 /* As assigned by Sun */
	90	#define NQNFS_VER3 3
	91	#define NQNFS_EVICTSIZ 156 /* Size of eviction request in bytes */
	92
	93	/*
	94	* Definitions used for saving the "last lease expires" time in Non-volatile
	95	* RAM on the server. The default definitions below assume that NOVRAM is not
	96	* available.
	97	*/
	98	#ifdef HASNVRAM
	99	# undef HASNVRAM
	100	#endif
	101	#define NQSTORENOVRAM(t)
	102	#define NQLOADNOVRAM(t)
	103
	104	/*
	105	* Defn and structs used on the server to maintain state for current leases.
	106	* The list of host(s) that hold the lease are kept as nqhost structures.
	107	* The first one lives in nqlease and any others are held in a linked
	108	* list of nqm structures hanging off of nqlease.
	109	*
	110	* Each nqlease structure is chained into two lists. The first is a list
	111	* ordered by increasing expiry time for nqsrv_timer() and the second is a chain
	112	* hashed on lc_fh.
	113	*/
	114	#define LC_MOREHOSTSIZ 10
	115
	116	struct nqhost {
	117	union {
	118	struct {
	119	u_short udp_flag;
	120	u_short udp_port;
	121	union nethostaddr udp_haddr;
	122	} un_udp;
	123	struct {
	124	u_short connless_flag;
	125	u_short connless_spare;
	126	union nethostaddr connless_haddr;
	127	} un_connless;
	128	struct {
	129	u_short conn_flag;
	130	u_short conn_spare;
	131	struct nfssvc_sock *conn_slp;
	132	} un_conn;
	133	} lph_un;
	134	};
	135	#define lph_flag lph_un.un_udp.udp_flag
136	#define lph_port lph_un.un_udp.udp_port
137	#define lph_haddr lph_un.un_udp.udp_haddr
138	#define lph_inetaddr lph_un.un_udp.udp_haddr.had_inetaddr
139	#define lph_claddr lph_un.un_connless.connless_haddr
140	#define lph_nam lph_un.un_connless.connless_haddr.had_nam
141	#define lph_slp lph_un.un_conn.conn_slp
142
143	struct nqlease {
144	LIST_ENTRY(nqlease) lc_hash; /* Fhandle hash list */
145	CIRCLEQ_ENTRY(nqlease) lc_timer; /* Timer queue list */
146	time_t lc_expiry; /* Expiry time (sec) */
147	struct nqhost lc_host; /* Host that got lease */
148	struct nqm lc_morehosts; / Other hosts that share read lease */
149	fsid_t lc_fsid; /* Fhandle */
150	char lc_fiddata[MAXFIDSZ];
151	struct vnode lc_vp; / Soft reference to associated vnode */
152	};
153	#define lc_flag lc_host.lph_un.un_udp.udp_flag
154
155	/* lc_flag bits */
156	#define LC_VALID 0x0001 /* Host address valid */
157	#define LC_WRITE 0x0002 /* Write cache */
158	#define LC_NONCACHABLE 0x0004 /* Non-cachable lease */
159	#define LC_LOCKED 0x0008 /* Locked */
160	#define LC_WANTED 0x0010 /* Lock wanted */
161	#define LC_EXPIREDWANTED 0x0020 /* Want lease when expired */
162	#define LC_UDP 0x0040 /* Host address for udp socket */
163	#define LC_CLTP 0x0080 /* Host address for other connectionless */
164	#define LC_LOCAL 0x0100 /* Host is server */
165	#define LC_VACATED 0x0200 /* Host has vacated lease */
166	#define LC_WRITTEN 0x0400 /* Recently wrote to the leased file */
167	#define LC_SREF 0x0800 /* Holds a nfssvc_sock reference */
168
169	struct nqm {
170	struct nqm *lpm_next;
171	struct nqhost lpm_hosts[LC_MOREHOSTSIZ];
172	};
173
174	/*
175	* Special value for slp for local server calls.
176	*/
177	#define NQLOCALSLP ((struct nfssvc_sock *) -1)
178
179	/*
180	* Server side macros.
181	*/
182	#define nqsrv_getl(v, l) \
183	(void) nqsrv_getlease((v), &nfsd->nd_duration, \
184	((nfsd->nd_flag & ND_LEASE) ? (nfsd->nd_flag & ND_LEASE) : \
185	((l) \| ND_CHECK)), \
186	slp, procp, nfsd->nd_nam, &cache, &frev, cred)
187
188	/*
189	* Client side macros that check for a valid lease.
190	*/
191	#define NQNFS_CKINVALID(v, n, f) \
192	((time.tv_sec > (n)->n_expiry && \
193	VFSTONFS((v)->v_mount)->nm_timeouts < VFSTONFS((v)->v_mount)->nm_deadthresh) \
194	\|\| ((f) == ND_WRITE && ((n)->n_flag & NQNFSWRITE) == 0))
195
196	#define NQNFS_CKCACHABLE(v, f) \
197	((time.tv_sec <= VTONFS(v)->n_expiry \|\| \
198	VFSTONFS((v)->v_mount)->nm_timeouts >= VFSTONFS((v)->v_mount)->nm_deadthresh) \
199	&& (VTONFS(v)->n_flag & NQNFSNONCACHE) == 0 && \
200	((f) == ND_READ \|\| (VTONFS(v)->n_flag & NQNFSWRITE)))
201
202	#define NQNFS_NEEDLEASE(v, p) \
203	(time.tv_sec > VTONFS(v)->n_expiry ? \
204	((VTONFS(v)->n_flag & NQNFSEVICTED) ? 0 : nqnfs_piggy[p]) : \
205	(((time.tv_sec + NQ_RENEWAL) > VTONFS(v)->n_expiry && \
206	nqnfs_piggy[p]) ? \
207	((VTONFS(v)->n_flag & NQNFSWRITE) ? \
208	ND_WRITE : nqnfs_piggy[p]) : 0))
209
210	/*
211	* List head for timer queue.
212	*/
213	extern CIRCLEQ_HEAD(nqtimerhead, nqlease) nqtimerhead;
214
215	/*
216	* List head for the file handle hash table.
217	*/
218	#define NQFHHASH(f) \
219	(&nqfhhashtbl[(((u_long )(f))) & nqfhhash])
220	extern LIST_HEAD(nqfhhashhead, nqlease) *nqfhhashtbl;
221	extern u_long nqfhhash;
222
223	/*
224	* Nqnfs return status numbers.
225	*/
226	#define NQNFS_EXPIRED 500
227	#define NQNFS_TRYLATER 501
228
229	#if defined(KERNEL)
230	void nqnfs_lease_check __P((struct vnode , struct proc , struct ucred *, int));
231	void nqnfs_lease_updatetime __P((int));
232	int nqsrv_getlease __P((struct vnode , u_long , int,
233	struct nfssvc_sock , struct proc ,
234	struct mbuf , int , u_quad_t *,
235	struct ucred *));
236	int nqnfs_getlease __P((struct vnode ,int,struct ucred ,struct proc *));
237	int nqnfs_callback __P((struct nfsmount ,struct mbuf ,struct mbuf *,caddr_t));
238	int nqnfs_clientd __P((struct nfsmount ,struct ucred ,struct nfsd_cargs ,int,caddr_t,struct proc ));
239	struct nfsnode;
240	void nqnfs_clientlease __P((struct nfsmount , struct nfsnode , int, int, time_t, u_quad_t));
241	void nqnfs_serverd __P((void));
242	int nqnfsrv_getlease __P((struct nfsrv_descript , struct nfssvc_sock , struct proc , struct mbuf *));
243	int nqnfsrv_vacated __P((struct nfsrv_descript , struct nfssvc_sock , struct proc , struct mbuf *));
244	#endif
245
9bccf70c A	246	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	247	#endif /* _NFS_NQNFS_H_ */