2 * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the
10 * License may not be used to create, or enable the creation or
11 * redistribution of, unlawful or unlicensed copies of an Apple operating
12 * system, or to circumvent, violate, or enable the circumvention or
13 * violation of, any terms of an Apple operating system software license
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this
20 * The Original Code and all software distributed under the License are
21 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
22 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
23 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
25 * Please see the License for the specific language governing rights and
26 * limitations under the License.
28 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
30 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
32 * Copyright (c) 1989, 1993, 1995
33 * The Regents of the University of California. All rights reserved.
35 * This code is derived from software contributed to Berkeley by
36 * Rick Macklem at The University of Guelph.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * @(#)nfs.h 8.4 (Berkeley) 5/1/95
67 * FreeBSD-Id: nfs.h,v 1.32 1997/10/12 20:25:38 phk Exp $
73 #include <sys/appleapiopts.h>
74 #include <sys/cdefs.h>
76 #ifdef __APPLE_API_PRIVATE
78 * Tunable constants for nfs
81 #define NFS_MAXIOVEC 34
82 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
83 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
84 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
85 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
86 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
87 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
88 #define NFS_MAXREXMIT 100 /* Stop counting after this many */
89 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
90 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */
91 #define NFS_TRYLATERDEL 15 /* Initial try later delay (sec) */
92 #define NFS_MAXGRPS 16 /* Max. size of groups list */
93 #ifndef NFS_MINATTRTIMO
94 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
96 #ifndef NFS_MAXATTRTIMO
97 #define NFS_MAXATTRTIMO 60
99 #ifndef NFS_MINDIRATTRTIMO
100 #define NFS_MINDIRATTRTIMO 5 /* directory attribute cache timeout in sec */
102 #ifndef NFS_MAXDIRATTRTIMO
103 #define NFS_MAXDIRATTRTIMO 60
105 #define NFS_WSIZE 16384 /* Def. write data size <= 16K */
106 #define NFS_RSIZE 16384 /* Def. read data size <= 16K */
107 #define NFS_DGRAM_WSIZE 8192 /* UDP Def. write data size <= 8K */
108 #define NFS_DGRAM_RSIZE 8192 /* UDP Def. read data size <= 8K */
109 #define NFS_READDIRSIZE 8192 /* Def. readdir size */
110 #define NFS_DEFRAHEAD 4 /* Def. read ahead # blocks */
111 #define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */
112 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
113 #define NFS_MAXASYNCDAEMON 32 /* Max. number async_daemons runnable */
114 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */
115 #ifndef NFS_GATHERDELAY
116 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */
118 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
119 #if defined(KERNEL) && !defined(DIRBLKSIZ)
120 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
121 /* can't be larger than NFS_FABLKSIZE */
127 #define NMOD(a) ((a) % nfs_asyncdaemons)
128 #define NFS_CMPFH(n, f, s) \
129 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
130 #define NFS_ISV3(v) (VFSTONFS(vnode_mount(v))->nm_flag & NFSMNT_NFSV3)
131 #define NFS_SRVMAXDATA(n) \
132 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
133 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
137 * The NB_INVAFTERWRITE flag should be set to whatever is required by the
138 * buffer cache code to say "Invalidate the block after it is written back".
141 #define NB_INVAFTERWRITE NB_NOCACHE
143 #define NB_INVAFTERWRITE NB_INVAL
147 * The IO_METASYNC flag should be implemented for local file systems.
148 * (Until then, it is nothin at all.)
151 #define IO_METASYNC 0
155 * Expected allocation sizes for major data structures. If the actual size
156 * of the structure exceeds these sizes, then malloc() will be allocating
157 * almost twice the memory required. This is used in nfs_init() to warn
158 * the sysadmin that the size of a structure should be reduced.
159 * (These sizes are always a power of 2. If the kernel malloc() changes
160 * to one that does not allocate space in powers of 2 size, then this all
162 * Note that some of these structures come out of there own nfs zones.
164 #define NFS_NODEALLOC 512
165 #define NFS_MNTALLOC 512
166 #define NFS_SVCALLOC 256
167 #define NFS_UIDALLOC 128
170 * Arguments to mount NFS
172 #define NFS_ARGSVERSION 4 /* change when nfs_args changes */
174 int version
; /* args structure version number */
175 struct sockaddr
*addr
; /* file server address */
176 int addrlen
; /* length of address */
177 int sotype
; /* Socket type */
178 int proto
; /* and Protocol */
179 u_char
*fh
; /* File handle to be mounted */
180 int fhsize
; /* Size, in bytes, of fh */
181 int flags
; /* flags */
182 int wsize
; /* write size in bytes */
183 int rsize
; /* read size in bytes */
184 int readdirsize
; /* readdir size in bytes */
185 int timeo
; /* initial timeout in .1 secs */
186 int retrans
; /* times to retry send */
187 int maxgrouplist
; /* Max. size of group list */
188 int readahead
; /* # of blocks to readahead */
189 int leaseterm
; /* obsolete: Term (sec) of lease */
190 int deadthresh
; /* obsolete: Retrans threshold */
191 char *hostname
; /* server's name */
192 /* NFS_ARGSVERSION 3 ends here */
193 int acregmin
; /* reg file min attr cache timeout */
194 int acregmax
; /* reg file max attr cache timeout */
195 int acdirmin
; /* dir min attr cache timeout */
196 int acdirmax
; /* dir max attr cache timeout */
200 int version
; /* args structure version number */
201 struct sockaddr
*addr
; /* file server address */
202 int addrlen
; /* length of address */
203 int sotype
; /* Socket type */
204 int proto
; /* and Protocol */
205 u_char
*fh
; /* File handle to be mounted */
206 int fhsize
; /* Size, in bytes, of fh */
207 int flags
; /* flags */
208 int wsize
; /* write size in bytes */
209 int rsize
; /* read size in bytes */
210 int readdirsize
; /* readdir size in bytes */
211 int timeo
; /* initial timeout in .1 secs */
212 int retrans
; /* times to retry send */
213 int maxgrouplist
; /* Max. size of group list */
214 int readahead
; /* # of blocks to readahead */
215 int leaseterm
; /* obsolete: Term (sec) of lease */
216 int deadthresh
; /* obsolete: Retrans threshold */
217 char *hostname
; /* server's name */
220 // LP64todo - should this move?
222 /* LP64 version of nfs_args. all pointers and longs
223 * grow when we're dealing with a 64-bit process.
224 * WARNING - keep in sync with nfs_args
226 #if __DARWIN_ALIGN_NATURAL
227 #pragma options align=natural
230 struct user_nfs_args
{
231 int version
; /* args structure version number */
232 user_addr_t addr
; /* file server address */
233 int addrlen
; /* length of address */
234 int sotype
; /* Socket type */
235 int proto
; /* and Protocol */
236 user_addr_t fh
; /* File handle to be mounted */
237 int fhsize
; /* Size, in bytes, of fh */
238 int flags
; /* flags */
239 int wsize
; /* write size in bytes */
240 int rsize
; /* read size in bytes */
241 int readdirsize
; /* readdir size in bytes */
242 int timeo
; /* initial timeout in .1 secs */
243 int retrans
; /* times to retry send */
244 int maxgrouplist
; /* Max. size of group list */
245 int readahead
; /* # of blocks to readahead */
246 int leaseterm
; /* obsolete: Term (sec) of lease */
247 int deadthresh
; /* obsolete: Retrans threshold */
248 user_addr_t hostname
; /* server's name */
249 /* NFS_ARGSVERSION 3 ends here */
250 int acregmin
; /* reg file min attr cache timeout */
251 int acregmax
; /* reg file max attr cache timeout */
252 int acdirmin
; /* dir min attr cache timeout */
253 int acdirmax
; /* dir max attr cache timeout */
255 struct user_nfs_args3
{
256 int version
; /* args structure version number */
257 user_addr_t addr
; /* file server address */
258 int addrlen
; /* length of address */
259 int sotype
; /* Socket type */
260 int proto
; /* and Protocol */
261 user_addr_t fh
; /* File handle to be mounted */
262 int fhsize
; /* Size, in bytes, of fh */
263 int flags
; /* flags */
264 int wsize
; /* write size in bytes */
265 int rsize
; /* read size in bytes */
266 int readdirsize
; /* readdir size in bytes */
267 int timeo
; /* initial timeout in .1 secs */
268 int retrans
; /* times to retry send */
269 int maxgrouplist
; /* Max. size of group list */
270 int readahead
; /* # of blocks to readahead */
271 int leaseterm
; /* obsolete: Term (sec) of lease */
272 int deadthresh
; /* obsolete: Retrans threshold */
273 user_addr_t hostname
; /* server's name */
276 #if __DARWIN_ALIGN_NATURAL
277 #pragma options align=reset
283 * NFS mount option flags
285 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
286 #define NFSMNT_WSIZE 0x00000002 /* set write size */
287 #define NFSMNT_RSIZE 0x00000004 /* set read size */
288 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
289 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
290 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
291 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
292 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
293 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
294 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
295 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
296 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
297 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
298 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
299 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
300 #define NFSMNT_NOLOCKS 0x00040000 /* don't support file locking */
301 #define NFSMNT_ACREGMIN 0x00100000 /* reg min attr cache timeout */
302 #define NFSMNT_ACREGMAX 0x00200000 /* reg max attr cache timeout */
303 #define NFSMNT_ACDIRMIN 0x00400000 /* dir min attr cache timeout */
304 #define NFSMNT_ACDIRMAX 0x00800000 /* dir max attr cache timeout */
307 * NFS mount state flags (nm_state)
309 #define NFSSTA_LOCKTIMEO 0x00002000 /* experienced a lock req timeout */
310 #define NFSSTA_MOUNTED 0x00004000 /* completely mounted */
311 #define NFSSTA_LOCKSWORK 0x00008000 /* lock ops have worked. */
312 #define NFSSTA_TIMEO 0x00010000 /* experienced a timeout. */
313 #define NFSSTA_FORCE 0x00020000 /* doing a forced unmount. */
314 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
315 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
316 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
317 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
318 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
319 #define NFSSTA_WANTSND 0x02000000 /* Want above */
320 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
321 #define NFSSTA_WANTRCV 0x08000000 /* Want above */
322 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
323 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
324 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
325 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
328 * NFS mount pathconf info flags (nm_fsinfo.pcflags)
330 #define NFSPCINFO_NOTRUNC 0x01
331 #define NFSPCINFO_CHOWN_RESTRICTED 0x02
332 #define NFSPCINFO_CASE_INSENSITIVE 0x04
333 #define NFSPCINFO_CASE_PRESERVING 0x08
336 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
337 * should ever try and use it.
340 int sock
; /* Socket to serve */
341 caddr_t name
; /* Client addr for connection based sockets */
342 int namelen
; /* Length of name */
345 // LP64todo - should this move?
347 /* LP64 version of nfsd_args. all pointers and longs
348 * grow when we're dealing with a 64-bit process.
349 * WARNING - keep in sync with nfsd_args
351 #if __DARWIN_ALIGN_NATURAL
352 #pragma options align=natural
355 struct user_nfsd_args
{
356 int sock
; /* Socket to serve */
357 user_addr_t name
; /* Client addr for connection based sockets */
358 int namelen
; /* Length of name */
361 #if __DARWIN_ALIGN_NATURAL
362 #pragma options align=reset
367 struct nfsd_srvargs
{
368 struct nfsd
*nsd_nfsd
; /* Pointer to in kernel nfsd struct */
369 uid_t nsd_uid
; /* Effective uid mapped to cred */
370 u_long nsd_haddr
; /* Ip address of client */
371 struct ucred nsd_cr
; /* Cred. uid maps to */
372 int nsd_authlen
; /* Length of auth string (ret) */
373 u_char
*nsd_authstr
; /* Auth string (ret) */
374 int nsd_verflen
; /* and the verfier */
376 struct timeval nsd_timestamp
; /* timestamp from verifier */
377 u_long nsd_ttl
; /* credential ttl (sec) */
378 NFSKERBKEY_T nsd_key
; /* Session key */
382 char *ncd_dirp
; /* Mount dir path */
383 uid_t ncd_authuid
; /* Effective uid */
384 int ncd_authtype
; /* Type of authenticator */
385 int ncd_authlen
; /* Length of authenticator string */
386 u_char
*ncd_authstr
; /* Authenticator string */
387 int ncd_verflen
; /* and the verifier */
389 NFSKERBKEY_T ncd_key
; /* Session key */
393 * NFS Server File Handle structures
396 /* NFS export handle identifies which NFS export */
397 #define NFS_FH_VERSION 0x4e580000 /* 'NX00' */
398 struct nfs_exphandle
{
399 uint32_t nxh_version
; /* data structure version */
400 uint32_t nxh_fsid
; /* File System Export ID */
401 uint32_t nxh_expid
; /* Export ID */
402 uint16_t nxh_flags
; /* export handle flags */
403 uint8_t nxh_reserved
; /* future use */
404 uint8_t nxh_fidlen
; /* length of File ID */
408 #define NXHF_INVALIDFH 0x0001 /* file handle is invalid */
410 #define NFS_MAX_FID_SIZE (NFS_MAX_FH_SIZE - sizeof(struct nfs_exphandle))
411 #define NFSV2_MAX_FID_SIZE (NFSV2_MAX_FH_SIZE - sizeof(struct nfs_exphandle))
413 /* NFS server internal view of fhandle_t */
414 struct nfs_filehandle
{
415 int nfh_len
; /* total length of file handle */
416 struct nfs_exphandle nfh_xh
; /* export handle */
417 unsigned char nfh_fid
[NFS_MAX_FID_SIZE
]; /* File ID */
421 * NFS export data structures
424 struct nfs_export_net_args
{
425 uint32_t nxna_flags
; /* export flags */
426 struct xucred nxna_cred
; /* mapped credential for root/all user */
427 struct sockaddr_storage nxna_addr
; /* net address to which exported */
428 struct sockaddr_storage nxna_mask
; /* mask for net address */
431 struct nfs_export_args
{
432 uint32_t nxa_fsid
; /* export FS ID */
433 uint32_t nxa_expid
; /* export ID */
434 char *nxa_fspath
; /* export FS path */
435 char *nxa_exppath
; /* export sub-path */
436 uint32_t nxa_flags
; /* export arg flags */
437 uint32_t nxa_netcount
; /* #entries in ex_nets array */
438 struct nfs_export_net_args
*nxa_nets
; /* array of net args */
442 /* LP64 version of export_args */
444 #if __DARWIN_ALIGN_NATURAL
445 #pragma options align=natural
448 struct user_nfs_export_args
{
449 uint32_t nxa_fsid
; /* export FS ID */
450 uint32_t nxa_expid
; /* export ID */
451 user_addr_t nxa_fspath
; /* export FS path */
452 user_addr_t nxa_exppath
; /* export sub-path */
453 uint32_t nxa_flags
; /* export arg flags */
454 uint32_t nxa_netcount
; /* #entries in ex_nets array */
455 user_addr_t nxa_nets
; /* array of net args */
458 #if __DARWIN_ALIGN_NATURAL
459 #pragma options align=reset
464 /* nfs export arg flags */
465 #define NXA_DELETE 0x0001 /* delete the specified export(s) */
466 #define NXA_ADD 0x0002 /* add the specified export(s) */
467 #define NXA_REPLACE 0x0003 /* delete and add the specified export(s) */
468 #define NXA_DELETE_ALL 0x0004 /* delete all exports */
470 /* export option flags */
471 #define NX_READONLY 0x0001 /* exported read-only */
472 #define NX_DEFAULTEXPORT 0x0002 /* exported to the world */
473 #define NX_MAPROOT 0x0004 /* map root access to anon credential */
474 #define NX_MAPALL 0x0008 /* map all access to anon credential */
475 #define NX_KERB 0x0010 /* exported with Kerberos uid mapping */
476 #define NX_32BITCLIENTS 0x0020 /* restrict directory cookies to 32 bits */
481 struct nfs_export_options
{
482 uint32_t nxo_flags
; /* export options */
483 kauth_cred_t nxo_cred
; /* mapped credential */
486 /* Network address lookup element and individual export options */
488 struct radix_node no_rnodes
[2]; /* radix tree glue */
489 struct nfs_export_options no_opt
; /* export options */
492 /* Network export information */
493 /* one of these for each exported directory */
495 LIST_ENTRY(nfs_export
) nx_next
; /* FS export list */
496 LIST_ENTRY(nfs_export
) nx_hash
; /* export hash chain */
497 struct nfs_export
*nx_parent
; /* parent export */
498 uint32_t nx_id
; /* export ID */
499 uint32_t nx_flags
; /* export flags */
500 struct nfs_exportfs
*nx_fs
; /* exported file system */
501 char *nx_path
; /* exported file system sub-path */
502 struct nfs_filehandle nx_fh
; /* export root file handle */
503 struct nfs_export_options nx_defopt
; /* default options */
504 uint32_t nx_expcnt
; /* # exports in table */
505 struct radix_node_head
*nx_rtable
[AF_MAX
+1]; /* table of exports (netopts) */
508 /* NFS exported file system info */
509 /* one of these for each exported file system */
510 struct nfs_exportfs
{
511 LIST_ENTRY(nfs_exportfs
) nxfs_next
; /* exported file system list */
512 uint32_t nxfs_id
; /* exported file system ID */
513 char *nxfs_path
; /* exported file system path */
514 LIST_HEAD(,nfs_export
) nxfs_exports
; /* list of exports for this file system */
517 extern LIST_HEAD(nfsexpfslist
, nfs_exportfs
) nfs_exports
;
518 extern lck_rw_t nfs_export_rwlock
; // lock for export data structures
519 #define NFSEXPHASHVAL(FSID, EXPID) \
520 (((FSID) >> 24) ^ ((FSID) >> 16) ^ ((FSID) >> 8) ^ (EXPID))
521 #define NFSEXPHASH(FSID, EXPID) \
522 (&nfsexphashtbl[NFSEXPHASHVAL((FSID),(EXPID)) & nfsexphash])
523 extern LIST_HEAD(nfsexphashhead
, nfs_export
) *nfsexphashtbl
;
524 extern u_long nfsexphash
;
529 * XXX to allow amd to include nfs.h without nfsproto.h
537 int attrcache_misses
;
538 int lookupcache_hits
;
539 int lookupcache_misses
;
540 int direofcache_hits
;
541 int direofcache_misses
;
548 int biocache_readlinks
;
550 int biocache_readdirs
;
552 int rpccnt
[NFS_NPROCS
];
554 int srvrpccnt
[NFS_NPROCS
];
561 int srvcache_inproghits
;
562 int srvcache_idemdonehits
;
563 int srvcache_nonidemdonehits
;
572 * Flags for nfssvc() system call.
574 #define NFSSVC_BIOD 0x002
575 #define NFSSVC_NFSD 0x004
576 #define NFSSVC_ADDSOCK 0x008
577 #define NFSSVC_AUTHIN 0x010
578 #define NFSSVC_GOTAUTH 0x040
579 #define NFSSVC_AUTHINFAIL 0x080
580 #define NFSSVC_MNTD 0x100
581 #define NFSSVC_EXPORT 0x200
584 * Flags for nfsclnt() system call.
586 #define NFSCLNT_LOCKDANS 0x200
587 #define NFSCLNT_LOCKDFD 0x400
588 #define NFSCLNT_LOCKDWAIT 0x800
591 * fs.nfs sysctl(3) identifiers
593 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */
594 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
596 #define FS_NFS_NAMES { \
598 { "nfsstats", CTLTYPE_STRUCT }, \
599 { "nfsprivport", CTLTYPE_INT }, \
602 #ifndef NFS_MUIDHASHSIZ
603 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
605 #ifndef NFS_WDELAYHASHSIZ
606 #define NFS_WDELAYHASHSIZ 16 /* and with this */
610 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
611 * What should be in this set is open to debate, but I believe that since
612 * I/O system calls on ufs are never interrupted by signals the set should
613 * be minimal. My reasoning is that many current programs that use signals
614 * such as SIGALRM will not expect file I/O system calls to be interrupted
618 #include <sys/kernel_types.h>
620 #ifdef MALLOC_DECLARE
621 MALLOC_DECLARE(M_NFSREQ
);
622 MALLOC_DECLARE(M_NFSMNT
);
623 MALLOC_DECLARE(M_NFSDIROFF
);
624 MALLOC_DECLARE(M_NFSRVDESC
);
625 MALLOC_DECLARE(M_NFSUID
);
626 MALLOC_DECLARE(M_NFSD
);
627 MALLOC_DECLARE(M_NFSBIGFH
);
630 struct uio
; struct vnode_attr
; struct nameidata
; /* XXX */
635 #define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
636 sigmask(SIGHUP)|sigmask(SIGQUIT))
638 __private_extern__
int nfs_mbuf_mlen
, nfs_mbuf_mhlen
,
639 nfs_mbuf_minclsize
, nfs_mbuf_mclbytes
;
642 * Socket errors ignored for connectionless sockets??
643 * For now, ignore them all
645 #define NFSIGNORE_SOERROR(s, e) \
646 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
647 (e) != EIO && ((s)) != SOCK_STREAM)
650 * Nfs outstanding request list element
653 TAILQ_ENTRY(nfsreq
) r_chain
;
658 struct nfsmount
*r_nmp
;
661 int r_flags
; /* flags on request, see below */
662 int r_retry
; /* max retransmission count */
663 int r_rexmit
; /* current retrans count */
664 int r_timer
; /* tick counter on reply */
665 u_int32_t r_procnum
; /* NFS procedure number */
666 int r_rtt
; /* RTT for rpc */
667 proc_t r_procp
; /* Proc that did I/O system call */
668 long r_lastmsg
; /* time of last tprintf */
672 * Queue head for nfsreq's
674 extern TAILQ_HEAD(nfs_reqq
, nfsreq
) nfs_reqq
;
676 /* Flag values for r_flags */
677 #define R_TIMING 0x0001 /* timing request (in mntp) */
678 #define R_SENT 0x0002 /* request has been sent */
679 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */
680 #define R_INTR 0x0008 /* intr mnt, signal pending */
681 #define R_SOCKERR 0x0010 /* Fatal error on socket */
682 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */
683 #define R_MUSTRESEND 0x0040 /* Must resend request */
684 #define R_BUSY 0x0100 /* Locked. */
685 #define R_WAITING 0x0200 /* Someone waiting for lock. */
686 #define R_RESENDERR 0x0400 /* resend failed. */
689 * A list of nfssvc_sock structures is maintained with all the sockets
690 * that require service by the nfsd.
691 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
692 * and uid hash lists.
694 #ifndef NFS_UIDHASHSIZ
695 #define NFS_UIDHASHSIZ 13 /* Tune the size of nfssvc_sock with this */
697 #define NUIDHASH(sock, uid) \
698 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
699 #define NWDELAYHASH(sock, f) \
700 (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ])
701 #define NMUIDHASH(nmp, uid) \
702 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
703 #define NFSNOHASH(fhsum) \
704 (&nfsnodehashtbl[(fhsum) & nfsnodehash])
707 * Network address hash list element
715 TAILQ_ENTRY(nfsuid
) nu_lru
; /* LRU chain */
716 LIST_ENTRY(nfsuid
) nu_hash
; /* Hash list */
717 int nu_flag
; /* Flags */
718 union nethostaddr nu_haddr
; /* Host addr. for dgram sockets */
719 kauth_cred_t nu_cr
; /* Cred uid mapped to */
720 int nu_expire
; /* Expiry time (sec) */
721 struct timeval nu_timestamp
; /* Kerb. timestamp */
722 u_long nu_nickname
; /* Nickname on server */
723 NFSKERBKEY_T nu_key
; /* and session key */
726 #define nu_inetaddr nu_haddr.had_inetaddr
727 #define nu_nam nu_haddr.had_nam
728 /* Bits for nu_flag */
729 #define NU_INETADDR 0x1
731 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
734 /* XXX CSM 12/2/97 When/if we merge queue.h */
736 STAILQ_ENTRY(nfsrv_rec
) nr_link
;
737 struct sockaddr
*nr_address
;
743 TAILQ_ENTRY(nfssvc_sock
) ns_chain
; /* List of all nfssvc_sock's */
744 lck_rw_t ns_rwlock
; /* lock for most fields */
758 time_t ns_timestamp
; /* socket timestamp */
759 lck_mtx_t ns_wgmutex
; /* mutex for write gather fields */
760 u_quad_t ns_wgtime
; /* next Write deadline (usec) */
761 LIST_HEAD(, nfsrv_descript
) ns_tq
; /* Write gather lists */
762 LIST_HEAD(nfsrvw_delayhash
, nfsrv_descript
) ns_wdelayhashtbl
[NFS_WDELAYHASHSIZ
];
763 TAILQ_HEAD(, nfsuid
) ns_uidlruhead
;
764 LIST_HEAD(, nfsuid
) ns_uidhashtbl
[NFS_UIDHASHSIZ
];
767 /* Bits for "ns_flag" */
768 #define SLP_VALID 0x01 /* nfs sock valid */
769 #define SLP_DOREC 0x02 /* nfs sock has received data to process */
770 #define SLP_NEEDQ 0x04 /* network socket has data to receive */
771 #define SLP_DISCONN 0x08 /* socket needs to be zapped */
772 #define SLP_GETSTREAM 0x10 /* currently in nfsrv_getstream() */
773 #define SLP_LASTFRAG 0x20 /* on last fragment of RPC record */
774 #define SLP_ALLFLAGS 0xff
776 extern TAILQ_HEAD(nfssvc_sockhead
, nfssvc_sock
) nfssvc_sockhead
, nfssvc_deadsockhead
;
778 /* locks for nfssvc_sock's */
779 extern lck_grp_attr_t
*nfs_slp_group_attr
;
780 extern lck_attr_t
*nfs_slp_lock_attr
;
781 extern lck_grp_t
*nfs_slp_rwlock_group
;
782 extern lck_grp_t
*nfs_slp_mutex_group
;
785 * One of these structures is allocated for each nfsd.
788 TAILQ_ENTRY(nfsd
) nfsd_chain
; /* List of all nfsd's */
789 int nfsd_flag
; /* NFSD_ flags */
790 struct nfssvc_sock
*nfsd_slp
; /* Current socket */
791 int nfsd_authlen
; /* Authenticator len */
792 u_char nfsd_authstr
[RPCAUTH_MAXSIZ
]; /* Authenticator data */
793 int nfsd_verflen
; /* and the Verifier */
794 u_char nfsd_verfstr
[RPCVERF_MAXSIZ
];
795 proc_t nfsd_procp
; /* Proc ptr */
796 struct nfsrv_descript
*nfsd_nd
; /* Associated nfsrv_descript */
799 /* Bits for "nfsd_flag" */
800 #define NFSD_WAITING 0x01
801 #define NFSD_REQINPROG 0x02
802 #define NFSD_NEEDAUTH 0x04
803 #define NFSD_AUTHFAIL 0x08
806 * This structure is used by the server for describing each request.
807 * Some fields are used only when write request gathering is performed.
809 struct nfsrv_descript
{
810 u_quad_t nd_time
; /* Write deadline (usec) */
811 off_t nd_off
; /* Start byte offset */
812 off_t nd_eoff
; /* and end byte offset */
813 LIST_ENTRY(nfsrv_descript
) nd_hash
; /* Hash list */
814 LIST_ENTRY(nfsrv_descript
) nd_tq
; /* and timer list */
815 LIST_HEAD(,nfsrv_descript
) nd_coalesce
; /* coalesced writes */
816 mbuf_t nd_mrep
; /* Request mbuf list */
817 mbuf_t nd_md
; /* Current dissect mbuf */
818 mbuf_t nd_mreq
; /* Reply mbuf list */
819 mbuf_t nd_nam
; /* and socket addr */
820 mbuf_t nd_nam2
; /* return socket addr */
821 caddr_t nd_dpos
; /* Current dissect pos */
822 u_int32_t nd_procnum
; /* RPC # */
823 int nd_stable
; /* storage type */
824 int nd_flag
; /* nd_flag */
825 int nd_len
; /* Length of this write */
826 int nd_repstat
; /* Reply status */
827 u_long nd_retxid
; /* Reply xid */
828 struct timeval nd_starttime
; /* Time RPC initiated */
829 struct nfs_filehandle nd_fh
; /* File handle */
830 kauth_cred_t nd_cr
; /* Credentials */
833 /* Bits for "nd_flag" */
834 #define ND_NFSV3 0x08
835 #define ND_KERBNICK 0x20
836 #define ND_KERBFULL 0x40
837 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
839 extern TAILQ_HEAD(nfsd_head
, nfsd
) nfsd_head
;
840 extern int nfsd_head_flag
;
841 #define NFSD_CHECKSLP 0x01
844 * These macros compare nfsrv_descript structures.
846 #define NFSW_CONTIG(o, n) \
847 (((o)->nd_eoff >= (n)->nd_off) && \
848 ((o)->nd_fh.nfh_len == (n)->nd_fh.nfh_len) && \
849 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, (o)->nd_fh.nfh_len))
851 #define NFSW_SAMECRED(o, n) \
852 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
853 !bcmp((caddr_t)(o)->nd_cr, (caddr_t)(n)->nd_cr, \
854 sizeof (struct ucred)))
856 /* mutex for nfs server */
857 extern lck_grp_t
* nfsd_lck_grp
;
858 extern lck_grp_attr_t
* nfsd_lck_grp_attr
;
859 extern lck_attr_t
* nfsd_lck_attr
;
860 extern lck_mtx_t
*nfsd_mutex
;
862 extern int nfs_numnfsd
, nfsd_waiting
;
868 #define WEBNFS_ESC_CHAR '%'
869 #define WEBNFS_SPECCHAR_START 0x80
871 #define WEBNFS_NATIVE_CHAR 0x80
874 * Possibly more here in the future.
878 * Macro for converting escape characters in WebNFS pathnames.
879 * Should really be in libkern.
882 ((((c) >= 'a') && ((c) <= 'f')) || \
883 (((c) >= 'A') && ((c) <= 'F')) || \
884 (((c) >= '0') && ((c) <= '9')))
886 ((c) >= 'a' ? ((c) - ('a' - 10)) : \
887 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
888 #define HEXSTRTOI(p) \
889 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
893 int nfs_init(struct vfsconf
*vfsp
);
894 void nfs_mbuf_init(void);
895 int nfs_reply(struct nfsreq
*);
896 int nfs_getreq(struct nfsrv_descript
*,struct nfsd
*,int);
897 int nfs_send(socket_t
, mbuf_t
, mbuf_t
, struct nfsreq
*);
898 int nfs_rephead(int, struct nfsrv_descript
*, struct nfssvc_sock
*,
899 int, mbuf_t
*, mbuf_t
*, caddr_t
*);
900 int nfs_sndlock(struct nfsreq
*);
901 void nfs_sndunlock(struct nfsreq
*);
902 int nfs_vinvalbuf(vnode_t
, int, struct ucred
*, proc_t
, int);
903 int nfs_buf_page_inval(vnode_t vp
, off_t offset
);
904 int nfs_readrpc(vnode_t
, struct uio
*, struct ucred
*, proc_t
);
905 int nfs_writerpc(vnode_t
, struct uio
*, struct ucred
*, proc_t
, int *, int *);
906 int nfs_readdirrpc(vnode_t
, struct uio
*, struct ucred
*, proc_t
);
907 int nfs_readdirplusrpc(vnode_t
, struct uio
*, struct ucred
*, proc_t
);
908 int nfs_asyncio(struct nfsbuf
*, struct ucred
*);
909 int nfs_doio(struct nfsbuf
*, struct ucred
*, proc_t
);
910 int nfs_readlinkrpc(vnode_t
, struct uio
*, struct ucred
*, proc_t
);
911 int nfs_sigintr(struct nfsmount
*, struct nfsreq
*, proc_t
);
912 int nfsm_disct(mbuf_t
*, caddr_t
*, int, int, caddr_t
*);
913 void nfsm_srvfattr(struct nfsrv_descript
*, struct vnode_attr
*,
915 void nfsm_srvwcc(struct nfsrv_descript
*, int, struct vnode_attr
*, int,
916 struct vnode_attr
*, mbuf_t
*, char **);
917 void nfsm_srvpostopattr(struct nfsrv_descript
*, int, struct vnode_attr
*,
919 int netaddr_match(int, union nethostaddr
*, mbuf_t
);
920 int nfs_request(vnode_t
, mount_t
, mbuf_t
, int, proc_t
,
921 struct ucred
*, mbuf_t
*, mbuf_t
*,
922 caddr_t
*, u_int64_t
*);
923 int nfs_parsefattr(mbuf_t
*, caddr_t
*, int, struct nfs_vattr
*);
924 int nfs_loadattrcache(struct nfsnode
*, struct nfs_vattr
*, u_int64_t
*, int);
925 int nfsm_path_mbuftond(mbuf_t
*, caddr_t
*, int, int, int *, struct nameidata
*);
926 int nfs_namei(struct nfsrv_descript
*, struct vfs_context
*, struct nameidata
*,
927 struct nfs_filehandle
*, mbuf_t
, int, vnode_t
*,
928 struct nfs_export
**, struct nfs_export_options
**);
929 void nfsm_adj(mbuf_t
, int, int);
930 int nfsm_mbuftouio(mbuf_t
*, struct uio
*, int, caddr_t
*);
931 void nfsrv_initcache(void);
932 int nfs_getauth(struct nfsmount
*, struct nfsreq
*, struct ucred
*,
933 char **, int *, char *, int *, NFSKERBKEY_T
);
934 int nfs_getnickauth(struct nfsmount
*, struct ucred
*, char **,
936 int nfs_savenickauth(struct nfsmount
*, struct ucred
*, int,
937 NFSKERBKEY_T
, mbuf_t
*, char **,
939 int nfs_adv(mbuf_t
*, caddr_t
*, int, int);
940 void nfs_nhinit(void);
941 void nfs_timer_funnel(void*);
942 void nfs_timer(void*);
943 u_long
nfs_hash(u_char
*, int);
944 int nfsrv_dorec(struct nfssvc_sock
*, struct nfsd
*,
945 struct nfsrv_descript
**);
946 int nfsrv_getcache(struct nfsrv_descript
*, struct nfssvc_sock
*,
948 void nfsrv_updatecache(struct nfsrv_descript
*, int, mbuf_t
);
949 void nfsrv_cleancache(void);
950 int nfs_bind_resv_thread_wake(void);
951 int nfs_connect(struct nfsmount
*, struct nfsreq
*);
952 void nfs_disconnect(struct nfsmount
*);
953 int nfs_getattr_no_vnode(mount_t
,u_char
*,int,struct ucred
*,proc_t
,struct nfs_vattr
*,u_int64_t
*);
954 int nfs_getattr(vnode_t vp
, struct nfs_vattr
*nvap
, struct ucred
*cred
, proc_t p
);
955 int nfs_getattrcache(vnode_t
, struct nfs_vattr
*);
956 int nfs_attrcachetimeout(vnode_t
);
957 int nfsm_strtmbuf(mbuf_t
*, char **, char *, long);
958 int nfs_bioread(vnode_t
, struct uio
*, int, struct ucred
*, proc_t
);
959 int nfsm_uiotombuf(struct uio
*, mbuf_t
*, int, caddr_t
*);
960 void nfsrv_init(int);
961 int nfs_commit(vnode_t vp
, u_quad_t offset
, u_int32_t count
,
962 struct ucred
*cred
, proc_t procp
);
963 int nfs_flushcommits(vnode_t
, proc_t
, int);
964 int nfs_flush(vnode_t
,int,struct ucred
*,proc_t
,int);
965 void nfs_clearcommit(mount_t
);
966 int nfsrv_errmap(struct nfsrv_descript
*, int);
967 void nfsrvw_sort(gid_t
*, int);
968 void nfsrv_setcred(struct ucred
*, struct ucred
*);
969 int nfs_buf_write(struct nfsbuf
*);
970 void nfsrv_wakenfsd(struct nfssvc_sock
*slp
);
971 int nfsrv_writegather(struct nfsrv_descript
**, struct nfssvc_sock
*,
973 int nfs_fsinfo(struct nfsmount
*, vnode_t
, struct ucred
*, proc_t p
);
974 int nfs_pathconfrpc(vnode_t
, struct nfsv3_pathconf
*, kauth_cred_t
, proc_t
);
975 void nfs_pathconf_cache(struct nfsmount
*, struct nfsv3_pathconf
*);
977 int nfsrv3_access(struct nfsrv_descript
*nfsd
,
978 struct nfssvc_sock
*slp
,
979 proc_t procp
, mbuf_t
*mrq
);
980 int nfsrv_commit(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
981 proc_t procp
, mbuf_t
*mrq
);
982 int nfsrv_create(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
983 proc_t procp
, mbuf_t
*mrq
);
984 int nfsrv_credcheck(struct nfsrv_descript
*, struct nfs_export
*,
985 struct nfs_export_options
*);
986 int nfsrv_export(struct user_nfs_export_args
*, struct vfs_context
*);
987 int nfsrv_fhmatch(struct nfs_filehandle
*fh1
, struct nfs_filehandle
*fh2
);
988 int nfsrv_fhtovp(struct nfs_filehandle
*, mbuf_t
, int, vnode_t
*,
989 struct nfs_export
**, struct nfs_export_options
**);
990 int nfs_ispublicfh(struct nfs_filehandle
*);
991 int nfsrv_fsinfo(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
992 proc_t procp
, mbuf_t
*mrq
);
993 int nfsrv_getattr(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
994 proc_t procp
, mbuf_t
*mrq
);
995 int nfsrv_link(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
996 proc_t procp
, mbuf_t
*mrq
);
997 int nfsrv_lookup(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
998 proc_t procp
, mbuf_t
*mrq
);
999 int nfsrv_mkdir(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1000 proc_t procp
, mbuf_t
*mrq
);
1001 int nfsrv_mknod(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1002 proc_t procp
, mbuf_t
*mrq
);
1003 int nfsrv_noop(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1004 proc_t procp
, mbuf_t
*mrq
);
1005 int nfsrv_null(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1006 proc_t procp
, mbuf_t
*mrq
);
1007 int nfsrv_pathconf(struct nfsrv_descript
*nfsd
,
1008 struct nfssvc_sock
*slp
, proc_t procp
,
1010 void nfsrv_rcv(socket_t
, caddr_t arg
, int waitflag
);
1011 void nfsrv_rcv_locked(socket_t
, struct nfssvc_sock
*slp
, int waitflag
);
1012 int nfsrv_read(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1013 proc_t procp
, mbuf_t
*mrq
);
1014 int nfsrv_readdir(struct nfsrv_descript
*nfsd
,
1015 struct nfssvc_sock
*slp
,
1016 proc_t procp
, mbuf_t
*mrq
);
1017 int nfsrv_readdirplus(struct nfsrv_descript
*nfsd
,
1018 struct nfssvc_sock
*slp
, proc_t procp
,
1020 int nfsrv_readlink(struct nfsrv_descript
*nfsd
,
1021 struct nfssvc_sock
*slp
, proc_t procp
,
1023 int nfsrv_remove(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1024 proc_t procp
, mbuf_t
*mrq
);
1025 int nfsrv_rename(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1026 proc_t procp
, mbuf_t
*mrq
);
1027 int nfsrv_rmdir(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1028 proc_t procp
, mbuf_t
*mrq
);
1029 int nfsrv_setattr(struct nfsrv_descript
*nfsd
,
1030 struct nfssvc_sock
*slp
,
1031 proc_t procp
, mbuf_t
*mrq
);
1032 void nfsrv_slpderef(struct nfssvc_sock
*slp
);
1033 void nfsrv_slpfree(struct nfssvc_sock
*slp
);
1034 int nfsrv_statfs(struct nfsrv_descript
*nfsd
,
1035 struct nfssvc_sock
*slp
,
1036 proc_t procp
, mbuf_t
*mrq
);
1037 int nfsrv_symlink(struct nfsrv_descript
*nfsd
,
1038 struct nfssvc_sock
*slp
,
1039 proc_t procp
, mbuf_t
*mrq
);
1040 int nfsrv_write(struct nfsrv_descript
*nfsd
, struct nfssvc_sock
*slp
,
1041 proc_t procp
, mbuf_t
*mrq
);
1042 int nfsrv_vptofh( struct nfs_export
*, int, struct nfs_filehandle
*,
1043 vnode_t
, struct vfs_context
*, struct nfs_filehandle
*);
1045 void nfs_up(struct nfsmount
*, proc_t
, int, const char *);
1046 void nfs_down(struct nfsmount
*, proc_t
, int, int, const char *);
1048 struct nfs_diskless
;
1049 int nfs_boot_init(struct nfs_diskless
*nd
, proc_t procp
);
1050 int nfs_boot_getfh(struct nfs_diskless
*nd
, proc_t procp
, int v3
, int sotype
);
1055 #endif /* __APPLE_API_PRIVATE */