master
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Rick Macklem at The University of Guelph.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef _NFS_NFSPORT_H_
36#define _NFS_NFSPORT_H_
37
38/*
39 * In general, I'm not fond of #includes in .h files, but this seems
40 * to be the cleanest way to handle #include files for the ports.
41 */
42#ifdef _KERNEL
43#include <sys/unistd.h>
44#include <sys/param.h>
45#include <sys/systm.h>
46#include <sys/conf.h>
47#include <sys/dirent.h>
48#include <sys/domain.h>
49#include <sys/fcntl.h>
50#include <sys/file.h>
51#include <sys/filedesc.h>
52#include <sys/jail.h>
53#include <sys/kernel.h>
54#include <sys/lockf.h>
55#include <sys/malloc.h>
56#include <sys/mbuf.h>
57#include <sys/mount.h>
58#include <sys/mutex.h>
59#include <sys/namei.h>
60#include <sys/proc.h>
61#include <sys/protosw.h>
62#include <sys/reboot.h>
63#include <sys/resourcevar.h>
64#include <sys/signalvar.h>
65#include <sys/socket.h>
66#include <sys/socketvar.h>
67#include <sys/stat.h>
68#include <sys/syslog.h>
69#include <sys/sysproto.h>
70#include <sys/time.h>
71#include <sys/uio.h>
72#include <sys/vnode.h>
73#include <sys/bio.h>
74#include <sys/buf.h>
75#include <sys/acl.h>
76#include <sys/module.h>
77#include <sys/sysent.h>
78#include <sys/syscall.h>
79#include <sys/priv.h>
80#include <sys/kthread.h>
81#include <sys/syscallsubr.h>
82#include <net/if.h>
83#include <net/if_var.h>
84#include <net/radix.h>
85#include <net/route.h>
86#include <net/if_dl.h>
87#include <netinet/in.h>
88#include <netinet/in_pcb.h>
89#include <netinet/in_systm.h>
90#include <netinet/in_var.h>
91#include <netinet/ip.h>
92#include <netinet/ip_var.h>
93#include <netinet/tcp.h>
94#include <netinet/tcp_fsm.h>
95#include <netinet/tcp_seq.h>
96#include <netinet/tcp_timer.h>
97#include <netinet/tcp_var.h>
98#include <machine/in_cksum.h>
99#include <sys/md5.h>
100#include <rpc/rpc.h>
101#include <rpc/rpcsec_gss.h>
102
103#include <ufs/ufs/dir.h>
104#include <ufs/ufs/quota.h>
105#include <ufs/ufs/inode.h>
106#include <ufs/ufs/extattr.h>
107#include <ufs/ufs/ufsmount.h>
108#include <vm/uma.h>
109#include <vm/vm.h>
110#include <vm/pmap.h>
111#include <vm/vm_extern.h>
112#include <vm/vm_object.h>
113#include <vm/vm_page.h>
114#include <vm/vm_pageout.h>
115#include <vm/vm_param.h>
116#include <nfs/nfssvc.h>
117#include "opt_nfs.h"
118#include "opt_ufs.h"
119
120/*
121 * These types must be defined before the nfs includes.
122 */
123#define NFSSOCKADDR_T struct sockaddr *
124#define NFSPROC_T struct thread
125#define NFSDEV_T dev_t
126#define NFSSVCARGS nfssvc_args
127#define NFSACL_T struct acl
128
129/*
130 * These should be defined as the types used for the corresponding VOP's
131 * argument type.
132 */
133#define NFS_ACCESS_ARGS struct vop_access_args
134#define NFS_OPEN_ARGS struct vop_open_args
135#define NFS_GETATTR_ARGS struct vop_getattr_args
136#define NFS_LOOKUP_ARGS struct vop_lookup_args
137#define NFS_READDIR_ARGS struct vop_readdir_args
138
139/*
140 * Allocate mbufs. Must succeed and never set the mbuf ptr to NULL.
141 */
142#define NFSMGET(m) do { \
143 MGET((m), M_WAITOK, MT_DATA); \
144 while ((m) == NULL ) { \
145 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
146 MGET((m), M_WAITOK, MT_DATA); \
147 } \
148 } while (0)
149#define NFSMGETHDR(m) do { \
150 MGETHDR((m), M_WAITOK, MT_DATA); \
151 while ((m) == NULL ) { \
152 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
153 MGETHDR((m), M_WAITOK, MT_DATA); \
154 } \
155 } while (0)
156#define NFSMCLGET(m, w) do { \
157 MGET((m), M_WAITOK, MT_DATA); \
158 while ((m) == NULL ) { \
159 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
160 MGET((m), M_WAITOK, MT_DATA); \
161 } \
162 MCLGET((m), (w)); \
163 } while (0)
164#define NFSMCLGETHDR(m, w) do { \
165 MGETHDR((m), M_WAITOK, MT_DATA); \
166 while ((m) == NULL ) { \
167 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
168 MGETHDR((m), M_WAITOK, MT_DATA); \
169 } \
170 } while (0)
171
172/*
173 * Client side constant for size of a lockowner name.
174 */
175#define NFSV4CL_LOCKNAMELEN 12
176
177/*
178 * Type for a mutex lock.
179 */
180#define NFSMUTEX_T struct mtx
181
182/* Just define the NFSD_VNETxxx() macros as VNETxxx() macros. */
183#define NFSD_VNET_NAME(n) VNET_NAME(n)
184#define NFSD_VNET_DECLARE(t, n) VNET_DECLARE(t, n)
185#define NFSD_VNET_DEFINE(t, n) VNET_DEFINE(t, n)
186#define NFSD_VNET_DEFINE_STATIC(t, n) VNET_DEFINE_STATIC(t, n)
187#define NFSD_VNET(n) VNET(n)
188
189#define CTLFLAG_NFSD_VNET CTLFLAG_VNET
190
191#define NFSD_CURVNET_SET(n) CURVNET_SET(n)
192#define NFSD_CURVNET_SET_QUIET(n) CURVNET_SET_QUIET(n)
193#define NFSD_CURVNET_RESTORE() CURVNET_RESTORE()
194#define NFSD_TD_TO_VNET(n) TD_TO_VNET(n)
195
196#endif /* _KERNEL */
197
198/*
199 * NFSv4 Operation numbers.
200 */
201#define NFSV4OP_ACCESS 3
202#define NFSV4OP_CLOSE 4
203#define NFSV4OP_COMMIT 5
204#define NFSV4OP_CREATE 6
205#define NFSV4OP_DELEGPURGE 7
206#define NFSV4OP_DELEGRETURN 8
207#define NFSV4OP_GETATTR 9
208#define NFSV4OP_GETFH 10
209#define NFSV4OP_LINK 11
210#define NFSV4OP_LOCK 12
211#define NFSV4OP_LOCKT 13
212#define NFSV4OP_LOCKU 14
213#define NFSV4OP_LOOKUP 15
214#define NFSV4OP_LOOKUPP 16
215#define NFSV4OP_NVERIFY 17
216#define NFSV4OP_OPEN 18
217#define NFSV4OP_OPENATTR 19
218#define NFSV4OP_OPENCONFIRM 20
219#define NFSV4OP_OPENDOWNGRADE 21
220#define NFSV4OP_PUTFH 22
221#define NFSV4OP_PUTPUBFH 23
222#define NFSV4OP_PUTROOTFH 24
223#define NFSV4OP_READ 25
224#define NFSV4OP_READDIR 26
225#define NFSV4OP_READLINK 27
226#define NFSV4OP_REMOVE 28
227#define NFSV4OP_RENAME 29
228#define NFSV4OP_RENEW 30
229#define NFSV4OP_RESTOREFH 31
230#define NFSV4OP_SAVEFH 32
231#define NFSV4OP_SECINFO 33
232#define NFSV4OP_SETATTR 34
233#define NFSV4OP_SETCLIENTID 35
234#define NFSV4OP_SETCLIENTIDCFRM 36
235#define NFSV4OP_VERIFY 37
236#define NFSV4OP_WRITE 38
237#define NFSV4OP_RELEASELCKOWN 39
238
239/*
240 * Must be one greater than the last Operation#.
241 */
242#define NFSV4OP_NOPS 40
243
244/*
245 * Additional Ops for NFSv4.1.
246 */
247#define NFSV4OP_BACKCHANNELCTL 40
248#define NFSV4OP_BINDCONNTOSESS 41
249#define NFSV4OP_EXCHANGEID 42
250#define NFSV4OP_CREATESESSION 43
251#define NFSV4OP_DESTROYSESSION 44
252#define NFSV4OP_FREESTATEID 45
253#define NFSV4OP_GETDIRDELEG 46
254#define NFSV4OP_GETDEVINFO 47
255#define NFSV4OP_GETDEVLIST 48
256#define NFSV4OP_LAYOUTCOMMIT 49
257#define NFSV4OP_LAYOUTGET 50
258#define NFSV4OP_LAYOUTRETURN 51
259#define NFSV4OP_SECINFONONAME 52
260#define NFSV4OP_SEQUENCE 53
261#define NFSV4OP_SETSSV 54
262#define NFSV4OP_TESTSTATEID 55
263#define NFSV4OP_WANTDELEG 56
264#define NFSV4OP_DESTROYCLIENTID 57
265#define NFSV4OP_RECLAIMCOMPL 58
266
267/*
268 * Must be one more than last op#.
269 */
270#define NFSV41_NOPS 59
271
272/*
273 * Additional operations for NFSv4.2.
274 */
275#define NFSV4OP_ALLOCATE 59
276#define NFSV4OP_COPY 60
277#define NFSV4OP_COPYNOTIFY 61
278#define NFSV4OP_DEALLOCATE 62
279#define NFSV4OP_IOADVISE 63
280#define NFSV4OP_LAYOUTERROR 64
281#define NFSV4OP_LAYOUTSTATS 65
282#define NFSV4OP_OFFLOADCANCEL 66
283#define NFSV4OP_OFFLOADSTATUS 67
284#define NFSV4OP_READPLUS 68
285#define NFSV4OP_SEEK 69
286#define NFSV4OP_WRITESAME 70
287#define NFSV4OP_CLONE 71
288
289/* One greater than the last Operation # defined in RFC-7862. */
290#define NFSV42_PURENOPS 72
291
292/* and the optional Extended attribute operations (RFC-8276). */
293#define NFSV4OP_GETXATTR 72
294#define NFSV4OP_SETXATTR 73
295#define NFSV4OP_LISTXATTRS 74
296#define NFSV4OP_REMOVEXATTR 75
297
298/*
299 * Must be one more than the last NFSv4.2 op#.
300 */
301#define NFSV42_NOPS 76
302
303/* Quirky case if the illegal op code */
304#define NFSV4OP_OPILLEGAL 10044
305
306/*
307 * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV42_NOPS.
308 */
309#define NFSV4OP_SYMLINK (NFSV42_NOPS)
310#define NFSV4OP_MKDIR (NFSV42_NOPS + 1)
311#define NFSV4OP_RMDIR (NFSV42_NOPS + 2)
312#define NFSV4OP_READDIRPLUS (NFSV42_NOPS + 3)
313#define NFSV4OP_MKNOD (NFSV42_NOPS + 4)
314#define NFSV4OP_FSSTAT (NFSV42_NOPS + 5)
315#define NFSV4OP_FSINFO (NFSV42_NOPS + 6)
316#define NFSV4OP_PATHCONF (NFSV42_NOPS + 7)
317#define NFSV4OP_V3CREATE (NFSV42_NOPS + 8)
318
319/*
320 * This is the count of the fake operations listed above.
321 */
322#define NFSV4OP_FAKENOPS 9
323
324/*
325 * and the Callback OPs
326 */
327#define NFSV4OP_CBGETATTR 3
328#define NFSV4OP_CBRECALL 4
329
330/*
331 * Must be one greater than the last Callback Operation# for NFSv4.0.
332 */
333#define NFSV4OP_CBNOPS 5
334
335/*
336 * Additional Callback Ops for NFSv4.1 only.
337 */
338#define NFSV4OP_CBLAYOUTRECALL 5
339#define NFSV4OP_CBNOTIFY 6
340#define NFSV4OP_CBPUSHDELEG 7
341#define NFSV4OP_CBRECALLANY 8
342#define NFSV4OP_CBRECALLOBJAVAIL 9
343#define NFSV4OP_CBRECALLSLOT 10
344#define NFSV4OP_CBSEQUENCE 11
345#define NFSV4OP_CBWANTCANCELLED 12
346#define NFSV4OP_CBNOTIFYLOCK 13
347#define NFSV4OP_CBNOTIFYDEVID 14
348
349#define NFSV41_CBNOPS 15
350
351/*
352 * Additional callback operations for NFSv4.2.
353 */
354#define NFSV4OP_CBOFFLOAD 15
355
356#define NFSV42_CBNOPS 16
357
358/*
359 * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
360 * numbers used by NFSv4.
361 * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
362 * one greater than the last number.
363 */
364#ifndef NFS_V3NPROCS
365#define NFS_V3NPROCS 22
366
367#define NFSPROC_LOOKUPP 22
368#define NFSPROC_SETCLIENTID 23
369#define NFSPROC_SETCLIENTIDCFRM 24
370#define NFSPROC_LOCK 25
371#define NFSPROC_LOCKU 26
372#define NFSPROC_OPEN 27
373#define NFSPROC_CLOSE 28
374#define NFSPROC_OPENCONFIRM 29
375#define NFSPROC_LOCKT 30
376#define NFSPROC_OPENDOWNGRADE 31
377#define NFSPROC_RENEW 32
378#define NFSPROC_PUTROOTFH 33
379#define NFSPROC_RELEASELCKOWN 34
380#define NFSPROC_DELEGRETURN 35
381#define NFSPROC_RETDELEGREMOVE 36
382#define NFSPROC_RETDELEGRENAME1 37
383#define NFSPROC_RETDELEGRENAME2 38
384#define NFSPROC_GETACL 39
385#define NFSPROC_SETACL 40
386
387/*
388 * Must be defined as one higher than the last Proc# above.
389 */
390#define NFSV4_NPROCS 41
391
392/* Additional procedures for NFSv4.1. */
393#define NFSPROC_EXCHANGEID 41
394#define NFSPROC_CREATESESSION 42
395#define NFSPROC_DESTROYSESSION 43
396#define NFSPROC_DESTROYCLIENT 44
397#define NFSPROC_FREESTATEID 45
398#define NFSPROC_LAYOUTGET 46
399#define NFSPROC_GETDEVICEINFO 47
400#define NFSPROC_LAYOUTCOMMIT 48
401#define NFSPROC_LAYOUTRETURN 49
402#define NFSPROC_RECLAIMCOMPL 50
403#define NFSPROC_WRITEDS 51
404#define NFSPROC_READDS 52
405#define NFSPROC_COMMITDS 53
406#define NFSPROC_OPENLAYGET 54
407#define NFSPROC_CREATELAYGET 55
408
409/*
410 * Must be defined as one higher than the last NFSv4.1 Proc# above.
411 */
412#define NFSV41_NPROCS 56
413
414/* Additional procedures for NFSv4.2. */
415#define NFSPROC_IOADVISE 56
416#define NFSPROC_ALLOCATE 57
417#define NFSPROC_COPY 58
418#define NFSPROC_SEEK 59
419#define NFSPROC_SEEKDS 60
420
421/* and the ones for the optional Extended attribute support (RFC-8276). */
422#define NFSPROC_GETEXTATTR 61
423#define NFSPROC_SETEXTATTR 62
424#define NFSPROC_RMEXTATTR 63
425#define NFSPROC_LISTEXTATTR 64
426
427/* BindConnectionToSession, done by the krpc for a new connection. */
428#define NFSPROC_BINDCONNTOSESS 65
429
430/* Do a Lookup+Open for "oneopenown". */
431#define NFSPROC_LOOKUPOPEN 66
432
433/* Do an NFSv4.2 Deallocate. */
434#define NFSPROC_DEALLOCATE 67
435
436/* Do an NFSv4.2 LayoutError. */
437#define NFSPROC_LAYOUTERROR 68
438
439/* Do an NFSv4 Verify+Write. */
440#define NFSPROC_APPENDWRITE 69
441
442/*
443 * Must be defined as one higher than the last NFSv4.2 Proc# above.
444 */
445#define NFSV42_NPROCS 70
446
447/* Value of NFSV42_NPROCS for old nfsstats structure. (Always 69) */
448#define NFSV42_OLDNPROCS 69
449
450#endif /* NFS_V3NPROCS */
451
452/*
453 * Newest stats structure.
454 * The vers field will be set to NFSSTATS_V1 by the caller.
455 */
456#define NFSSTATS_V1 2
457struct nfsstatsv1 {
458 int vers; /* Set to version requested by caller. */
459 uint64_t attrcache_hits;
460 uint64_t attrcache_misses;
461 uint64_t lookupcache_hits;
462 uint64_t lookupcache_misses;
463 uint64_t direofcache_hits;
464 uint64_t direofcache_misses;
465 uint64_t accesscache_hits;
466 uint64_t accesscache_misses;
467 uint64_t biocache_reads;
468 uint64_t read_bios;
469 uint64_t read_physios;
470 uint64_t biocache_writes;
471 uint64_t write_bios;
472 uint64_t write_physios;
473 uint64_t biocache_readlinks;
474 uint64_t readlink_bios;
475 uint64_t biocache_readdirs;
476 uint64_t readdir_bios;
477 uint64_t rpccnt[NFSV42_NPROCS + 10];
478 uint64_t rpcretries;
479 uint64_t srvrpccnt[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
480 uint64_t srvlayouts;
481 uint64_t cllayouts;
482 uint64_t rpcrequests;
483 uint64_t rpctimeouts;
484 uint64_t rpcunexpected;
485 uint64_t rpcinvalid;
486 uint64_t srvcache_inproghits;
487 uint64_t reserved_2;
488 uint64_t srvcache_nonidemdonehits;
489 uint64_t srvcache_misses;
490 uint64_t srvcache_tcppeak;
491 int srvcache_size; /* Updated by atomic_xx_int(). */
492 uint64_t srvclients;
493 uint64_t srvopenowners;
494 uint64_t srvopens;
495 uint64_t srvlockowners;
496 uint64_t srvlocks;
497 uint64_t srvdelegates;
498 uint64_t cbrpccnt[NFSV42_CBNOPS + 10];
499 uint64_t clopenowners;
500 uint64_t clopens;
501 uint64_t cllockowners;
502 uint64_t cllocks;
503 uint64_t cldelegates;
504 uint64_t cllocalopenowners;
505 uint64_t cllocalopens;
506 uint64_t cllocallockowners;
507 uint64_t cllocallocks;
508 uint64_t srvstartcnt;
509 uint64_t srvdonecnt;
510 uint64_t srvbytes[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
511 uint64_t srvops[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
512 struct bintime srvduration[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
513 struct bintime busyfrom;
514 struct bintime busytime;
515};
516
517/*
518 * Newer stats structure.
519 * The vers field will be set to NFSSTATS_OV1 by the caller.
520 */
521#define NFSSTATS_OV1 1
522struct nfsstatsov1 {
523 int vers; /* Set to version requested by caller. */
524 uint64_t attrcache_hits;
525 uint64_t attrcache_misses;
526 uint64_t lookupcache_hits;
527 uint64_t lookupcache_misses;
528 uint64_t direofcache_hits;
529 uint64_t direofcache_misses;
530 uint64_t accesscache_hits;
531 uint64_t accesscache_misses;
532 uint64_t biocache_reads;
533 uint64_t read_bios;
534 uint64_t read_physios;
535 uint64_t biocache_writes;
536 uint64_t write_bios;
537 uint64_t write_physios;
538 uint64_t biocache_readlinks;
539 uint64_t readlink_bios;
540 uint64_t biocache_readdirs;
541 uint64_t readdir_bios;
542 uint64_t rpccnt[NFSV42_OLDNPROCS];
543 uint64_t rpcretries;
544 uint64_t srvrpccnt[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
545 uint64_t reserved_0;
546 uint64_t reserved_1;
547 uint64_t rpcrequests;
548 uint64_t rpctimeouts;
549 uint64_t rpcunexpected;
550 uint64_t rpcinvalid;
551 uint64_t srvcache_inproghits;
552 uint64_t reserved_2;
553 uint64_t srvcache_nonidemdonehits;
554 uint64_t srvcache_misses;
555 uint64_t srvcache_tcppeak;
556 int srvcache_size; /* Updated by atomic_xx_int(). */
557 uint64_t srvclients;
558 uint64_t srvopenowners;
559 uint64_t srvopens;
560 uint64_t srvlockowners;
561 uint64_t srvlocks;
562 uint64_t srvdelegates;
563 uint64_t cbrpccnt[NFSV42_CBNOPS];
564 uint64_t clopenowners;
565 uint64_t clopens;
566 uint64_t cllockowners;
567 uint64_t cllocks;
568 uint64_t cldelegates;
569 uint64_t cllocalopenowners;
570 uint64_t cllocalopens;
571 uint64_t cllocallockowners;
572 uint64_t cllocallocks;
573 uint64_t srvstartcnt;
574 uint64_t srvdonecnt;
575 uint64_t srvbytes[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
576 uint64_t srvops[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
577 struct bintime srvduration[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
578 struct bintime busyfrom;
579 struct bintime busytime;
580};
581
582/*
583 * Old stats structure.
584 */
585struct ext_nfsstats {
586 int attrcache_hits;
587 int attrcache_misses;
588 int lookupcache_hits;
589 int lookupcache_misses;
590 int direofcache_hits;
591 int direofcache_misses;
592 int accesscache_hits;
593 int accesscache_misses;
594 int biocache_reads;
595 int read_bios;
596 int read_physios;
597 int biocache_writes;
598 int write_bios;
599 int write_physios;
600 int biocache_readlinks;
601 int readlink_bios;
602 int biocache_readdirs;
603 int readdir_bios;
604 int rpccnt[NFSV4_NPROCS];
605 int rpcretries;
606 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
607 int reserved_0;
608 int reserved_1;
609 int rpcrequests;
610 int rpctimeouts;
611 int rpcunexpected;
612 int rpcinvalid;
613 int srvcache_inproghits;
614 int reserved_2;
615 int srvcache_nonidemdonehits;
616 int srvcache_misses;
617 int srvcache_tcppeak;
618 int srvcache_size;
619 int srvclients;
620 int srvopenowners;
621 int srvopens;
622 int srvlockowners;
623 int srvlocks;
624 int srvdelegates;
625 int cbrpccnt[NFSV4OP_CBNOPS];
626 int clopenowners;
627 int clopens;
628 int cllockowners;
629 int cllocks;
630 int cldelegates;
631 int cllocalopenowners;
632 int cllocalopens;
633 int cllocallockowners;
634 int cllocallocks;
635};
636
637#ifdef _KERNEL
638/*
639 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
640 */
641#ifndef NFS_NPROCS
642#define NFS_NPROCS NFSV4_NPROCS
643#endif
644
645#include <fs/nfs/nfskpiport.h>
646#include <fs/nfs/nfsdport.h>
647#include <fs/nfs/rpcv2.h>
648#include <fs/nfs/nfsproto.h>
649#include <fs/nfs/nfs.h>
650#include <fs/nfs/nfsclstate.h>
651#include <fs/nfs/nfs_var.h>
652#include <fs/nfs/nfsm_subs.h>
653#include <fs/nfs/nfsrvcache.h>
654#include <fs/nfs/nfsrvstate.h>
655#include <fs/nfs/xdr_subs.h>
656#include <fs/nfs/nfscl.h>
657#include <nfsclient/nfsargs.h>
658#include <fs/nfsclient/nfsmount.h>
659
660/*
661 * Just to keep nfs_var.h happy.
662 */
663struct nfs_vattr {
664 int junk;
665};
666
667struct nfsvattr {
668 struct vattr na_vattr;
669 nfsattrbit_t na_suppattr;
670 u_int64_t na_mntonfileno;
671 u_int64_t na_filesid[2];
672};
673
674#define na_type na_vattr.va_type
675#define na_mode na_vattr.va_mode
676#define na_nlink na_vattr.va_nlink
677#define na_uid na_vattr.va_uid
678#define na_gid na_vattr.va_gid
679#define na_fsid na_vattr.va_fsid
680#define na_fileid na_vattr.va_fileid
681#define na_size na_vattr.va_size
682#define na_blocksize na_vattr.va_blocksize
683#define na_atime na_vattr.va_atime
684#define na_mtime na_vattr.va_mtime
685#define na_ctime na_vattr.va_ctime
686#define na_btime na_vattr.va_birthtime
687#define na_gen na_vattr.va_gen
688#define na_flags na_vattr.va_flags
689#define na_rdev na_vattr.va_rdev
690#define na_bytes na_vattr.va_bytes
691#define na_filerev na_vattr.va_filerev
692#define na_vaflags na_vattr.va_vaflags
693
694#include <fs/nfsclient/nfsnode.h>
695
696/*
697 * This is the header structure used for the lists, etc. (It has the
698 * above record in it.
699 */
700struct nfsrv_stablefirst {
701 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
702 time_t nsf_eograce; /* Time grace period ends */
703 time_t *nsf_bootvals; /* Previous boottime values */
704 struct file *nsf_fp; /* File table pointer */
705 u_char nsf_flags; /* NFSNSF_ flags */
706 struct nfsf_rec nsf_rec; /* and above first record */
707};
708#define nsf_lease nsf_rec.lease
709#define nsf_numboots nsf_rec.numboots
710
711/* NFSNSF_xxx flags */
712#define NFSNSF_UPDATEDONE 0x01
713#define NFSNSF_GRACEOVER 0x02
714#define NFSNSF_NEEDLOCK 0x04
715#define NFSNSF_EXPIREDCLIENT 0x08
716#define NFSNSF_NOOPENS 0x10
717#define NFSNSF_OK 0x20
718
719/*
720 * Maximum number of boot times allowed in record. Although there is
721 * really no need for a fixed upper bound, this serves as a sanity check
722 * for a corrupted file.
723 */
724#define NFSNSF_MAXNUMBOOTS 10000
725
726/*
727 * This structure defines the other records in the file. The
728 * nst_client array is actually the size of the client string name.
729 */
730struct nfst_rec {
731 u_int16_t len;
732 u_char flag;
733 u_char client[1];
734};
735/* and the values for flag */
736#define NFSNST_NEWSTATE 0x1
737#define NFSNST_REVOKE 0x2
738#define NFSNST_GOTSTATE 0x4
739#define NFSNST_RECLAIMED 0x8
740
741/*
742 * This structure is linked onto nfsrv_stablefirst for the duration of
743 * reclaim.
744 */
745struct nfsrv_stable {
746 LIST_ENTRY(nfsrv_stable) nst_list;
747 struct nfsclient *nst_clp;
748 struct nfst_rec nst_rec;
749};
750#define nst_timestamp nst_rec.timestamp
751#define nst_len nst_rec.len
752#define nst_flag nst_rec.flag
753#define nst_client nst_rec.client
754
755/*
756 * At some point the server will run out of kernel storage for
757 * state structures. For FreeBSD5.2, this results in a panic
758 * kmem_map is full. It happens at well over 1000000 opens plus
759 * locks on a PIII-800 with 256Mbytes, so that is where I've set
760 * the limit. If your server panics due to too many opens/locks,
761 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
762 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
763 * increasing it.
764 */
765#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
766
767/*
768 * The type required differs with BSDen (just the second arg).
769 */
770void nfsrvd_rcv(struct socket *, void *, int);
771
772/*
773 * Macros for handling socket addresses. (Hopefully this makes the code
774 * more portable, since I've noticed some 'BSD don't have sockaddrs in
775 * mbufs any more.)
776 */
777#define NFSSOCKADDR(a, t) ((t)(a))
778#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
779
780/*
781 * These should be defined as a process or thread structure, as required
782 * for signal handling, etc.
783 */
784#define NFSNEWCRED(c) (crdup(c))
785#define NFSPROCCRED(p) ((p)->td_ucred)
786#define NFSFREECRED(c) (crfree(c))
787#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
788#define NFSPROCP(p) ((p)->td_proc)
789
790/*
791 * Define these so that cn_hash and its length is ignored.
792 */
793#define NFSCNHASHZERO(c)
794#define NFSCNHASH(c, v)
795#define NCHNAMLEN 9999999
796
797/*
798 * Handle SMP stuff:
799 */
800#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
801#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
802#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
803#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
804#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
805#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
806#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
807#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
808#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
809#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
810#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
811#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
812#define NFSNAMEIDMUTEXPTR (&nfs_nameid_mutex)
813#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
814#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
815#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
816#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
817#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
818#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
819#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
820#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
821#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
822#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
823#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
824#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
825#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
826#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
827#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
828#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
829#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
830#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
831#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
832#define NFSASSERTNODE(n) mtx_assert(&((n)->n_mtx), MA_OWNED)
833#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
834#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
835#define NFSLOCKIOD() mtx_lock(&ncl_iod_mutex)
836#define NFSUNLOCKIOD() mtx_unlock(&ncl_iod_mutex)
837#define NFSASSERTIOD() mtx_assert(&ncl_iod_mutex, MA_OWNED)
838#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
839#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
840#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
841#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
842#define NFSLOCKDS(d) mtx_lock(&((d)->nfsclds_mtx))
843#define NFSUNLOCKDS(d) mtx_unlock(&((d)->nfsclds_mtx))
844#define NFSSESSIONMUTEXPTR(s) (&((s)->mtx))
845#define NFSLOCKSESSION(s) mtx_lock(&((s)->mtx))
846#define NFSUNLOCKSESSION(s) mtx_unlock(&((s)->mtx))
847#define NFSLAYOUTMUTEXPTR(l) (&((l)->mtx))
848#define NFSLOCKLAYOUT(l) mtx_lock(&((l)->mtx))
849#define NFSUNLOCKLAYOUT(l) mtx_unlock(&((l)->mtx))
850#define NFSDDSMUTEXPTR (&nfsrv_dslock_mtx)
851#define NFSDDSLOCK() mtx_lock(&nfsrv_dslock_mtx)
852#define NFSDDSUNLOCK() mtx_unlock(&nfsrv_dslock_mtx)
853#define NFSDDONTLISTMUTEXPTR (&nfsrv_dontlistlock_mtx)
854#define NFSDDONTLISTLOCK() mtx_lock(&nfsrv_dontlistlock_mtx)
855#define NFSDDONTLISTUNLOCK() mtx_unlock(&nfsrv_dontlistlock_mtx)
856#define NFSDRECALLMUTEXPTR (&nfsrv_recalllock_mtx)
857#define NFSDRECALLLOCK() mtx_lock(&nfsrv_recalllock_mtx)
858#define NFSDRECALLUNLOCK() mtx_unlock(&nfsrv_recalllock_mtx)
859
860/*
861 * Use these macros to initialize/free a mutex.
862 */
863#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
864#define NFSFREEMUTEX(m) mtx_destroy((m))
865
866int nfsmsleep(void *, void *, int, const char *, struct timespec *);
867
868/*
869 * And weird vm stuff in the nfs server.
870 */
871#define PDIRUNLOCK 0x0
872#define MAX_COMMIT_COUNT (1024 * 1024)
873
874/*
875 * Define these to handle the type of va_rdev.
876 */
877#define NFSMAKEDEV(m, n) makedev((m), (n))
878#define NFSMAJOR(d) major(d)
879#define NFSMINOR(d) minor(d)
880
881/*
882 * The vnode tag for nfsv4root.
883 */
884#define VT_NFSV4ROOT "nfsv4root"
885
886/*
887 * Define whatever it takes to do a vn_rdwr().
888 */
889#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
890 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
891
892/*
893 * Macros for handling memory for different BSDen.
894 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
895 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
896 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
897 * NFSBZERO(cp, len) - set len bytes to 0x0
898 */
899#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
900#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
901#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
902#define NFSBZERO(s, l) bzero((s), (l))
903
904/*
905 * Some queue.h files don't have these dfined in them.
906 */
907#ifndef LIST_END
908#define LIST_END(head) NULL
909#define SLIST_END(head) NULL
910#define TAILQ_END(head) NULL
911#endif
912
913/*
914 * This must be defined to be a global variable that increments once
915 * per second, but never stops or goes backwards, even when a "date"
916 * command changes the TOD clock. It is used for delta times for
917 * leases, etc.
918 */
919#define NFSD_MONOSEC time_uptime
920
921/*
922 * Declare the malloc types.
923 */
924MALLOC_DECLARE(M_NEWNFSRVCACHE);
925MALLOC_DECLARE(M_NEWNFSDCLIENT);
926MALLOC_DECLARE(M_NEWNFSDSTATE);
927MALLOC_DECLARE(M_NEWNFSDLOCK);
928MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
929MALLOC_DECLARE(M_NEWNFSSTRING);
930MALLOC_DECLARE(M_NEWNFSUSERGROUP);
931MALLOC_DECLARE(M_NEWNFSDREQ);
932MALLOC_DECLARE(M_NEWNFSFH);
933MALLOC_DECLARE(M_NEWNFSCLOWNER);
934MALLOC_DECLARE(M_NEWNFSCLOPEN);
935MALLOC_DECLARE(M_NEWNFSCLDELEG);
936MALLOC_DECLARE(M_NEWNFSCLCLIENT);
937MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
938MALLOC_DECLARE(M_NEWNFSCLLOCK);
939MALLOC_DECLARE(M_NEWNFSDIROFF);
940MALLOC_DECLARE(M_NEWNFSV4NODE);
941MALLOC_DECLARE(M_NEWNFSMNT);
942MALLOC_DECLARE(M_NEWNFSDROLLBACK);
943MALLOC_DECLARE(M_NEWNFSLAYOUT);
944MALLOC_DECLARE(M_NEWNFSFLAYOUT);
945MALLOC_DECLARE(M_NEWNFSDEVINFO);
946MALLOC_DECLARE(M_NEWNFSSOCKREQ);
947MALLOC_DECLARE(M_NEWNFSCLDS);
948MALLOC_DECLARE(M_NEWNFSLAYRECALL);
949MALLOC_DECLARE(M_NEWNFSDSESSION);
950#define M_NFSRVCACHE M_NEWNFSRVCACHE
951#define M_NFSDCLIENT M_NEWNFSDCLIENT
952#define M_NFSDSTATE M_NEWNFSDSTATE
953#define M_NFSDLOCK M_NEWNFSDLOCK
954#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
955#define M_NFSSTRING M_NEWNFSSTRING
956#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
957#define M_NFSDREQ M_NEWNFSDREQ
958#define M_NFSFH M_NEWNFSFH
959#define M_NFSCLOWNER M_NEWNFSCLOWNER
960#define M_NFSCLOPEN M_NEWNFSCLOPEN
961#define M_NFSCLDELEG M_NEWNFSCLDELEG
962#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
963#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
964#define M_NFSCLLOCK M_NEWNFSCLLOCK
965#define M_NFSDIROFF M_NEWNFSDIROFF
966#define M_NFSV4NODE M_NEWNFSV4NODE
967#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
968#define M_NFSLAYOUT M_NEWNFSLAYOUT
969#define M_NFSFLAYOUT M_NEWNFSFLAYOUT
970#define M_NFSDEVINFO M_NEWNFSDEVINFO
971#define M_NFSSOCKREQ M_NEWNFSSOCKREQ
972#define M_NFSCLDS M_NEWNFSCLDS
973#define M_NFSLAYRECALL M_NEWNFSLAYRECALL
974#define M_NFSDSESSION M_NEWNFSDSESSION
975
976#define NFSINT_SIGMASK(set) \
977 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
978 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
979 SIGISMEMBER(set, SIGQUIT))
980
981/*
982 * Convert a quota block count to byte count.
983 */
984#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
985
986/*
987 * Define this as the largest file size supported. (It should probably
988 * be available via a VFS_xxx Op, but it isn't.
989 */
990#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
991
992/*
993 * Set this macro to index() or strchr(), whichever is supported.
994 */
995#define STRCHR(s, c) strchr((s), (c))
996
997/*
998 * Set the n_time in the client write rpc, as required.
999 */
1000#define NFSWRITERPC_SETTIME(w, n, a, v4) \
1001 do { \
1002 if (w) { \
1003 NFSLOCKNODE(n); \
1004 (n)->n_mtime = (a)->na_mtime; \
1005 if (v4) \
1006 (n)->n_change = (a)->na_filerev; \
1007 NFSUNLOCKNODE(n); \
1008 } \
1009 } while (0)
1010
1011/*
1012 * Fake value, just to make the client work.
1013 */
1014#define NFS_LATTR_NOSHRINK 1
1015
1016/*
1017 * Prototypes for functions where the arguments vary for different ports.
1018 */
1019int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, int, int);
1020int newnfs_realign(struct mbuf **, int);
1021bool ncl_pager_setsize(struct vnode *vp, u_quad_t *nsizep);
1022void ncl_copy_vattr(struct vattr *dst, struct vattr *src);
1023
1024/*
1025 * If the port runs on an SMP box that can enforce Atomic ops with low
1026 * overheads, define these as atomic increments/decrements. If not,
1027 * don't worry about it, since these are used for stats that can be
1028 * "out by one" without disastrous consequences.
1029 */
1030#define NFSINCRGLOBAL(a) ((a)++)
1031#define NFSDECRGLOBAL(a) ((a)--)
1032
1033/*
1034 * Assorted funky stuff to make things work under Darwin8.
1035 */
1036/*
1037 * These macros checks for a field in vattr being set.
1038 */
1039#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
1040#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
1041
1042/*
1043 * Manipulate mount flags.
1044 */
1045#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
1046#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
1047#define NFSSTA_OPENMODE 0x00200000 /* Must use correct open mode */
1048#define NFSSTA_FLEXFILE 0x00800000 /* Use Flex File Layout */
1049#define NFSSTA_NOLAYOUTCOMMIT 0x04000000 /* Don't do LayoutCommit */
1050#define NFSSTA_SESSPERSIST 0x08000000 /* Has a persistent session */
1051#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
1052#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
1053#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
1054#define NFSSTA_PNFS 0x80000000 /* pNFS is enabled */
1055
1056#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
1057#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
1058#define NFSHASNFSV4N(n) ((n)->nm_minorvers > 0)
1059#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
1060#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
1061#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
1062#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
1063#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
1064#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
1065#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
1066#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
1067#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
1068#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
1069#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
1070#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
1071#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
1072#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
1073#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
1074#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
1075#define NFSHASPNFSOPT(n) ((n)->nm_flag & NFSMNT_PNFS)
1076#define NFSHASNOLAYOUTCOMMIT(n) ((n)->nm_state & NFSSTA_NOLAYOUTCOMMIT)
1077#define NFSHASSESSPERSIST(n) ((n)->nm_state & NFSSTA_SESSPERSIST)
1078#define NFSHASPNFS(n) ((n)->nm_state & NFSSTA_PNFS)
1079#define NFSHASFLEXFILE(n) ((n)->nm_state & NFSSTA_FLEXFILE)
1080#define NFSHASOPENMODE(n) ((n)->nm_state & NFSSTA_OPENMODE)
1081#define NFSHASONEOPENOWN(n) (((n)->nm_flag & NFSMNT_ONEOPENOWN) != 0 && \
1082 (n)->nm_minorvers > 0)
1083#define NFSHASTLS(n) (((n)->nm_newflag & NFSMNT_TLS) != 0)
1084#define NFSHASSYSKRB5(n) (((n)->nm_newflag & NFSMNT_SYSKRB5) != 0)
1085
1086/*
1087 * Set boottime.
1088 */
1089#define NFSSETBOOTTIME(b) (getboottime(&b))
1090
1091/*
1092 * The size of directory blocks in the buffer cache.
1093 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
1094 */
1095#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
1096
1097/*
1098 * Define these macros to access mnt_flag fields.
1099 */
1100#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
1101#endif /* _KERNEL */
1102
1103/*
1104 * Define a structure similar to ufs_args for use in exporting the V4 root.
1105 */
1106struct nfsex_args {
1107 char *fspec;
1108 struct export_args export;
1109};
1110
1111struct nfsex_oldargs {
1112 char *fspec;
1113 struct o2export_args export;
1114};
1115
1116/*
1117 * These export flags should be defined, but there are no bits left.
1118 * Maybe a separate mnt_exflag field could be added or the mnt_flag
1119 * field increased to 64 bits?
1120 */
1121#ifndef MNT_EXSTRICTACCESS
1122#define MNT_EXSTRICTACCESS 0x0
1123#endif
1124#ifndef MNT_EXV4ONLY
1125#define MNT_EXV4ONLY 0x0
1126#endif
1127
1128#ifdef _KERNEL
1129/*
1130 * Define this to invalidate the attribute cache for the nfs node.
1131 */
1132#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
1133
1134/* Used for FreeBSD only */
1135void nfsd_mntinit(void);
1136
1137/*
1138 * Define these for vnode lock/unlock ops.
1139 *
1140 * These are good abstractions to macro out, so that they can be added to
1141 * later, for debugging or stats, etc.
1142 */
1143#define NFSVOPLOCK(v, f) vn_lock((v), (f))
1144#define NFSVOPUNLOCK(v) VOP_UNLOCK((v))
1145#define NFSVOPISLOCKED(v) VOP_ISLOCKED((v))
1146
1147/*
1148 * Define ncl_hash().
1149 */
1150#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
1151
1152int newnfs_iosize(struct nfsmount *);
1153
1154int newnfs_vncmpf(struct vnode *, void *);
1155
1156#ifndef NFS_MINDIRATTRTIMO
1157#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
1158#endif
1159#ifndef NFS_MAXDIRATTRTIMO
1160#define NFS_MAXDIRATTRTIMO 60
1161#endif
1162
1163/*
1164 * Nfs outstanding request list element
1165 */
1166struct nfsreq {
1167 TAILQ_ENTRY(nfsreq) r_chain;
1168 u_int32_t r_flags; /* flags on request, see below */
1169 struct nfsmount *r_nmp; /* Client mnt ptr */
1170 struct mtx r_mtx; /* Mutex lock for this structure */
1171};
1172
1173#ifndef NFS_MAXBSIZE
1174#define NFS_MAXBSIZE (maxbcachebuf)
1175#endif
1176
1177/*
1178 * This macro checks to see if issuing of delegations is allowed for this
1179 * vnode.
1180 */
1181#ifdef VV_DISABLEDELEG
1182#define NFSVNO_DELEGOK(v) \
1183 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
1184#else
1185#define NFSVNO_DELEGOK(v) (1)
1186#endif
1187
1188/*
1189 * Name used by getnewvnode() to describe filesystem, "nfs".
1190 * For performance reasons it is useful to have the same string
1191 * used in both places that call getnewvnode().
1192 */
1193extern const char nfs_vnode_tag[];
1194
1195/*
1196 * Check for the errors that indicate a DS should be disabled.
1197 * ENXIO indicates that the krpc cannot do an RPC on the DS.
1198 * EIO is returned by the RPC as an indication of I/O problems on the
1199 * server.
1200 * Are there other fatal errors?
1201 */
1202#define nfsds_failerr(e) ((e) == ENXIO || (e) == EIO)
1203
1204/*
1205 * Get a pointer to the MDS session, which is always the first element
1206 * in the list.
1207 * This macro can only be safely used when the NFSLOCKMNT() lock is held.
1208 * The inline function can be used when the lock isn't held.
1209 */
1210#define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess))
1211
1212static __inline struct nfsclsession *
1213nfsmnt_mdssession(struct nfsmount *nmp)
1214{
1215 struct nfsclsession *tsep;
1216
1217 tsep = NULL;
1218 mtx_lock(&nmp->nm_mtx);
1219 if (TAILQ_FIRST(&nmp->nm_sess) != NULL)
1220 tsep = NFSMNT_MDSSESSION(nmp);
1221 mtx_unlock(&nmp->nm_mtx);
1222 return (tsep);
1223}
1224
1225#endif /* _KERNEL */
1226
1227#endif /* _NFS_NFSPORT_H */