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