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 #endif /* _KERNEL */
183
184 /*
185 * NFSv4 Operation numbers.
186 */
187 #define NFSV4OP_ACCESS 3
188 #define NFSV4OP_CLOSE 4
189 #define NFSV4OP_COMMIT 5
190 #define NFSV4OP_CREATE 6
191 #define NFSV4OP_DELEGPURGE 7
192 #define NFSV4OP_DELEGRETURN 8
193 #define NFSV4OP_GETATTR 9
194 #define NFSV4OP_GETFH 10
195 #define NFSV4OP_LINK 11
196 #define NFSV4OP_LOCK 12
197 #define NFSV4OP_LOCKT 13
198 #define NFSV4OP_LOCKU 14
199 #define NFSV4OP_LOOKUP 15
200 #define NFSV4OP_LOOKUPP 16
201 #define NFSV4OP_NVERIFY 17
202 #define NFSV4OP_OPEN 18
203 #define NFSV4OP_OPENATTR 19
204 #define NFSV4OP_OPENCONFIRM 20
205 #define NFSV4OP_OPENDOWNGRADE 21
206 #define NFSV4OP_PUTFH 22
207 #define NFSV4OP_PUTPUBFH 23
208 #define NFSV4OP_PUTROOTFH 24
209 #define NFSV4OP_READ 25
210 #define NFSV4OP_READDIR 26
211 #define NFSV4OP_READLINK 27
212 #define NFSV4OP_REMOVE 28
213 #define NFSV4OP_RENAME 29
214 #define NFSV4OP_RENEW 30
215 #define NFSV4OP_RESTOREFH 31
216 #define NFSV4OP_SAVEFH 32
217 #define NFSV4OP_SECINFO 33
218 #define NFSV4OP_SETATTR 34
219 #define NFSV4OP_SETCLIENTID 35
220 #define NFSV4OP_SETCLIENTIDCFRM 36
221 #define NFSV4OP_VERIFY 37
222 #define NFSV4OP_WRITE 38
223 #define NFSV4OP_RELEASELCKOWN 39
224
225 /*
226 * Must be one greater than the last Operation#.
227 */
228 #define NFSV4OP_NOPS 40
229
230 /*
231 * Additional Ops for NFSv4.1.
232 */
233 #define NFSV4OP_BACKCHANNELCTL 40
234 #define NFSV4OP_BINDCONNTOSESS 41
235 #define NFSV4OP_EXCHANGEID 42
236 #define NFSV4OP_CREATESESSION 43
237 #define NFSV4OP_DESTROYSESSION 44
238 #define NFSV4OP_FREESTATEID 45
239 #define NFSV4OP_GETDIRDELEG 46
240 #define NFSV4OP_GETDEVINFO 47
241 #define NFSV4OP_GETDEVLIST 48
242 #define NFSV4OP_LAYOUTCOMMIT 49
243 #define NFSV4OP_LAYOUTGET 50
244 #define NFSV4OP_LAYOUTRETURN 51
245 #define NFSV4OP_SECINFONONAME 52
246 #define NFSV4OP_SEQUENCE 53
247 #define NFSV4OP_SETSSV 54
248 #define NFSV4OP_TESTSTATEID 55
249 #define NFSV4OP_WANTDELEG 56
250 #define NFSV4OP_DESTROYCLIENTID 57
251 #define NFSV4OP_RECLAIMCOMPL 58
252
253 /*
254 * Must be one more than last op#.
255 */
256 #define NFSV41_NOPS 59
257
258 /*
259 * Additional operations for NFSv4.2.
260 */
261 #define NFSV4OP_ALLOCATE 59
262 #define NFSV4OP_COPY 60
263 #define NFSV4OP_COPYNOTIFY 61
264 #define NFSV4OP_DEALLOCATE 62
265 #define NFSV4OP_IOADVISE 63
266 #define NFSV4OP_LAYOUTERROR 64
267 #define NFSV4OP_LAYOUTSTATS 65
268 #define NFSV4OP_OFFLOADCANCEL 66
269 #define NFSV4OP_OFFLOADSTATUS 67
270 #define NFSV4OP_READPLUS 68
271 #define NFSV4OP_SEEK 69
272 #define NFSV4OP_WRITESAME 70
273 #define NFSV4OP_CLONE 71
274
275 /* One greater than the last Operation # defined in RFC-7862. */
276 #define NFSV42_PURENOPS 72
277
278 /* and the optional Extended attribute operations (RFC-8276). */
279 #define NFSV4OP_GETXATTR 72
280 #define NFSV4OP_SETXATTR 73
281 #define NFSV4OP_LISTXATTRS 74
282 #define NFSV4OP_REMOVEXATTR 75
283
284 /*
285 * Must be one more than the last NFSv4.2 op#.
286 */
287 #define NFSV42_NOPS 76
288
289 /* Quirky case if the illegal op code */
290 #define NFSV4OP_OPILLEGAL 10044
291
292 /*
293 * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV42_NOPS.
294 */
295 #define NFSV4OP_SYMLINK (NFSV42_NOPS)
296 #define NFSV4OP_MKDIR (NFSV42_NOPS + 1)
297 #define NFSV4OP_RMDIR (NFSV42_NOPS + 2)
298 #define NFSV4OP_READDIRPLUS (NFSV42_NOPS + 3)
299 #define NFSV4OP_MKNOD (NFSV42_NOPS + 4)
300 #define NFSV4OP_FSSTAT (NFSV42_NOPS + 5)
301 #define NFSV4OP_FSINFO (NFSV42_NOPS + 6)
302 #define NFSV4OP_PATHCONF (NFSV42_NOPS + 7)
303 #define NFSV4OP_V3CREATE (NFSV42_NOPS + 8)
304
305 /*
306 * This is the count of the fake operations listed above.
307 */
308 #define NFSV4OP_FAKENOPS 9
309
310 /*
311 * and the Callback OPs
312 */
313 #define NFSV4OP_CBGETATTR 3
314 #define NFSV4OP_CBRECALL 4
315
316 /*
317 * Must be one greater than the last Callback Operation# for NFSv4.0.
318 */
319 #define NFSV4OP_CBNOPS 5
320
321 /*
322 * Additional Callback Ops for NFSv4.1 only.
323 */
324 #define NFSV4OP_CBLAYOUTRECALL 5
325 #define NFSV4OP_CBNOTIFY 6
326 #define NFSV4OP_CBPUSHDELEG 7
327 #define NFSV4OP_CBRECALLANY 8
328 #define NFSV4OP_CBRECALLOBJAVAIL 9
329 #define NFSV4OP_CBRECALLSLOT 10
330 #define NFSV4OP_CBSEQUENCE 11
331 #define NFSV4OP_CBWANTCANCELLED 12
332 #define NFSV4OP_CBNOTIFYLOCK 13
333 #define NFSV4OP_CBNOTIFYDEVID 14
334
335 #define NFSV41_CBNOPS 15
336
337 /*
338 * Additional callback operations for NFSv4.2.
339 */
340 #define NFSV4OP_CBOFFLOAD 15
341
342 #define NFSV42_CBNOPS 16
343
344 /*
345 * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
346 * numbers used by NFSv4.
347 * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
348 * one greater than the last number.
349 */
350 #ifndef NFS_V3NPROCS
351 #define NFS_V3NPROCS 22
352
353 #define NFSPROC_LOOKUPP 22
354 #define NFSPROC_SETCLIENTID 23
355 #define NFSPROC_SETCLIENTIDCFRM 24
356 #define NFSPROC_LOCK 25
357 #define NFSPROC_LOCKU 26
358 #define NFSPROC_OPEN 27
359 #define NFSPROC_CLOSE 28
360 #define NFSPROC_OPENCONFIRM 29
361 #define NFSPROC_LOCKT 30
362 #define NFSPROC_OPENDOWNGRADE 31
363 #define NFSPROC_RENEW 32
364 #define NFSPROC_PUTROOTFH 33
365 #define NFSPROC_RELEASELCKOWN 34
366 #define NFSPROC_DELEGRETURN 35
367 #define NFSPROC_RETDELEGREMOVE 36
368 #define NFSPROC_RETDELEGRENAME1 37
369 #define NFSPROC_RETDELEGRENAME2 38
370 #define NFSPROC_GETACL 39
371 #define NFSPROC_SETACL 40
372
373 /*
374 * Must be defined as one higher than the last Proc# above.
375 */
376 #define NFSV4_NPROCS 41
377
378 /* Additional procedures for NFSv4.1. */
379 #define NFSPROC_EXCHANGEID 41
380 #define NFSPROC_CREATESESSION 42
381 #define NFSPROC_DESTROYSESSION 43
382 #define NFSPROC_DESTROYCLIENT 44
383 #define NFSPROC_FREESTATEID 45
384 #define NFSPROC_LAYOUTGET 46
385 #define NFSPROC_GETDEVICEINFO 47
386 #define NFSPROC_LAYOUTCOMMIT 48
387 #define NFSPROC_LAYOUTRETURN 49
388 #define NFSPROC_RECLAIMCOMPL 50
389 #define NFSPROC_WRITEDS 51
390 #define NFSPROC_READDS 52
391 #define NFSPROC_COMMITDS 53
392 #define NFSPROC_OPENLAYGET 54
393 #define NFSPROC_CREATELAYGET 55
394
395 /*
396 * Must be defined as one higher than the last NFSv4.1 Proc# above.
397 */
398 #define NFSV41_NPROCS 56
399
400 /* Additional procedures for NFSv4.2. */
401 #define NFSPROC_IOADVISE 56
402 #define NFSPROC_ALLOCATE 57
403 #define NFSPROC_COPY 58
404 #define NFSPROC_SEEK 59
405 #define NFSPROC_SEEKDS 60
406
407 /* and the ones for the optional Extended attribute support (RFC-8276). */
408 #define NFSPROC_GETEXTATTR 61
409 #define NFSPROC_SETEXTATTR 62
410 #define NFSPROC_RMEXTATTR 63
411 #define NFSPROC_LISTEXTATTR 64
412
413 /* BindConnectionToSession, done by the krpc for a new connection. */
414 #define NFSPROC_BINDCONNTOSESS 65
415
416 /* Do a Lookup+Open for "oneopenown". */
417 #define NFSPROC_LOOKUPOPEN 66
418
419 /* Do an NFSv4.2 Deallocate. */
420 #define NFSPROC_DEALLOCATE 67
421
422 /* Do an NFSv4.2 LayoutError. */
423 #define NFSPROC_LAYOUTERROR 68
424
425 /* Do an NFSv4 Verify+Write. */
426 #define NFSPROC_APPENDWRITE 69
427
428 /* Do a NFSv4 Openattr. */
429 #define NFSPROC_OPENATTR 70
430
431 /* Do a NFSv4.2 Clone. */
432 #define NFSPROC_CLONE 71
433
434 /*
435 * Must be defined as one higher than the last NFSv4.2 Proc# above.
436 */
437 #define NFSV42_NPROCS 72
438
439 /* Value of NFSV42_NPROCS for old nfsstats structure. (Always 69) */
440 #define NFSV42_OLDNPROCS 69
441
442 #endif /* NFS_V3NPROCS */
443
444 /*
445 * Newest stats structure.
446 * The vers field will be set to NFSSTATS_V1 by the caller.
447 */
448 #define NFSSTATS_V1 2
449 struct nfsstatsv1 {
450 int vers; /* Set to version requested by caller. */
451 uint64_t attrcache_hits;
452 uint64_t attrcache_misses;
453 uint64_t lookupcache_hits;
454 uint64_t lookupcache_misses;
455 uint64_t direofcache_hits;
456 uint64_t direofcache_misses;
457 uint64_t accesscache_hits;
458 uint64_t accesscache_misses;
459 uint64_t biocache_reads;
460 uint64_t read_bios;
461 uint64_t read_physios;
462 uint64_t biocache_writes;
463 uint64_t write_bios;
464 uint64_t write_physios;
465 uint64_t biocache_readlinks;
466 uint64_t readlink_bios;
467 uint64_t biocache_readdirs;
468 uint64_t readdir_bios;
469 uint64_t rpccnt[NFSV42_NPROCS + 8];
470 uint64_t rpcretries;
471 uint64_t srvrpccnt[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
472 uint64_t srvlayouts;
473 uint64_t cllayouts;
474 uint64_t rpcrequests;
475 uint64_t rpctimeouts;
476 uint64_t rpcunexpected;
477 uint64_t rpcinvalid;
478 uint64_t srvcache_inproghits;
479 uint64_t reserved_2;
480 uint64_t srvcache_nonidemdonehits;
481 uint64_t srvcache_misses;
482 uint64_t srvcache_tcppeak;
483 int srvcache_size; /* Updated by atomic_xx_int(). */
484 uint64_t srvclients;
485 uint64_t srvopenowners;
486 uint64_t srvopens;
487 uint64_t srvlockowners;
488 uint64_t srvlocks;
489 uint64_t srvdelegates;
490 uint64_t cbrpccnt[NFSV42_CBNOPS + 10];
491 uint64_t clopenowners;
492 uint64_t clopens;
493 uint64_t cllockowners;
494 uint64_t cllocks;
495 uint64_t cldelegates;
496 uint64_t cllocalopenowners;
497 uint64_t cllocalopens;
498 uint64_t cllocallockowners;
499 uint64_t cllocallocks;
500 uint64_t srvstartcnt;
501 uint64_t srvdonecnt;
502 uint64_t srvbytes[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
503 uint64_t srvops[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
504 struct bintime srvduration[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15];
505 struct bintime busyfrom;
506 struct bintime busytime;
507 };
508
509 /*
510 * Newer stats structure.
511 * The vers field will be set to NFSSTATS_OV1 by the caller.
512 */
513 #define NFSSTATS_OV1 1
514 struct nfsstatsov1 {
515 int vers; /* Set to version requested by caller. */
516 uint64_t attrcache_hits;
517 uint64_t attrcache_misses;
518 uint64_t lookupcache_hits;
519 uint64_t lookupcache_misses;
520 uint64_t direofcache_hits;
521 uint64_t direofcache_misses;
522 uint64_t accesscache_hits;
523 uint64_t accesscache_misses;
524 uint64_t biocache_reads;
525 uint64_t read_bios;
526 uint64_t read_physios;
527 uint64_t biocache_writes;
528 uint64_t write_bios;
529 uint64_t write_physios;
530 uint64_t biocache_readlinks;
531 uint64_t readlink_bios;
532 uint64_t biocache_readdirs;
533 uint64_t readdir_bios;
534 uint64_t rpccnt[NFSV42_OLDNPROCS];
535 uint64_t rpcretries;
536 uint64_t srvrpccnt[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
537 uint64_t reserved_0;
538 uint64_t reserved_1;
539 uint64_t rpcrequests;
540 uint64_t rpctimeouts;
541 uint64_t rpcunexpected;
542 uint64_t rpcinvalid;
543 uint64_t srvcache_inproghits;
544 uint64_t reserved_2;
545 uint64_t srvcache_nonidemdonehits;
546 uint64_t srvcache_misses;
547 uint64_t srvcache_tcppeak;
548 int srvcache_size; /* Updated by atomic_xx_int(). */
549 uint64_t srvclients;
550 uint64_t srvopenowners;
551 uint64_t srvopens;
552 uint64_t srvlockowners;
553 uint64_t srvlocks;
554 uint64_t srvdelegates;
555 uint64_t cbrpccnt[NFSV42_CBNOPS];
556 uint64_t clopenowners;
557 uint64_t clopens;
558 uint64_t cllockowners;
559 uint64_t cllocks;
560 uint64_t cldelegates;
561 uint64_t cllocalopenowners;
562 uint64_t cllocalopens;
563 uint64_t cllocallockowners;
564 uint64_t cllocallocks;
565 uint64_t srvstartcnt;
566 uint64_t srvdonecnt;
567 uint64_t srvbytes[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
568 uint64_t srvops[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
569 struct bintime srvduration[NFSV42_PURENOPS + NFSV4OP_FAKENOPS];
570 struct bintime busyfrom;
571 struct bintime busytime;
572 };
573
574 /*
575 * Old stats structure.
576 */
577 struct ext_nfsstats {
578 int attrcache_hits;
579 int attrcache_misses;
580 int lookupcache_hits;
581 int lookupcache_misses;
582 int direofcache_hits;
583 int direofcache_misses;
584 int accesscache_hits;
585 int accesscache_misses;
586 int biocache_reads;
587 int read_bios;
588 int read_physios;
589 int biocache_writes;
590 int write_bios;
591 int write_physios;
592 int biocache_readlinks;
593 int readlink_bios;
594 int biocache_readdirs;
595 int readdir_bios;
596 int rpccnt[NFSV4_NPROCS];
597 int rpcretries;
598 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
599 int reserved_0;
600 int reserved_1;
601 int rpcrequests;
602 int rpctimeouts;
603 int rpcunexpected;
604 int rpcinvalid;
605 int srvcache_inproghits;
606 int reserved_2;
607 int srvcache_nonidemdonehits;
608 int srvcache_misses;
609 int srvcache_tcppeak;
610 int srvcache_size;
611 int srvclients;
612 int srvopenowners;
613 int srvopens;
614 int srvlockowners;
615 int srvlocks;
616 int srvdelegates;
617 int cbrpccnt[NFSV4OP_CBNOPS];
618 int clopenowners;
619 int clopens;
620 int cllockowners;
621 int cllocks;
622 int cldelegates;
623 int cllocalopenowners;
624 int cllocalopens;
625 int cllocallockowners;
626 int cllocallocks;
627 };
628
629 #ifdef _KERNEL
630 /*
631 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
632 */
633 #ifndef NFS_NPROCS
634 #define NFS_NPROCS NFSV4_NPROCS
635 #endif
636
637 #include <fs/nfs/nfskpiport.h>
638 #include <fs/nfs/nfsdport.h>
639 #include <fs/nfs/rpcv2.h>
640 #include <fs/nfs/nfsproto.h>
641 #include <fs/nfs/nfs.h>
642 #include <fs/nfs/nfsclstate.h>
643 #include <fs/nfs/nfs_var.h>
644 #include <fs/nfs/nfsm_subs.h>
645 #include <fs/nfs/nfsrvcache.h>
646 #include <fs/nfs/nfsrvstate.h>
647 #include <fs/nfs/xdr_subs.h>
648 #include <fs/nfs/nfscl.h>
649 #include <nfsclient/nfsargs.h>
650 #include <fs/nfsclient/nfsmount.h>
651
652 /*
653 * Just to keep nfs_var.h happy.
654 */
655 struct nfs_vattr {
656 int junk;
657 };
658
659 struct nfsvattr {
660 struct vattr na_vattr;
661 nfsattrbit_t na_suppattr;
662 u_int64_t na_mntonfileno;
663 u_int64_t na_filesid[2];
664 };
665
666 #define na_type na_vattr.va_type
667 #define na_mode na_vattr.va_mode
668 #define na_nlink na_vattr.va_nlink
669 #define na_uid na_vattr.va_uid
670 #define na_gid na_vattr.va_gid
671 #define na_fsid na_vattr.va_fsid
672 #define na_fileid na_vattr.va_fileid
673 #define na_size na_vattr.va_size
674 #define na_blocksize na_vattr.va_blocksize
675 #define na_atime na_vattr.va_atime
676 #define na_mtime na_vattr.va_mtime
677 #define na_ctime na_vattr.va_ctime
678 #define na_btime na_vattr.va_birthtime
679 #define na_gen na_vattr.va_gen
680 #define na_flags na_vattr.va_flags
681 #define na_rdev na_vattr.va_rdev
682 #define na_bytes na_vattr.va_bytes
683 #define na_filerev na_vattr.va_filerev
684 #define na_vaflags na_vattr.va_vaflags
685 #define na_bsdflags na_vattr.va_bsdflags
686
687 #include <fs/nfsclient/nfsnode.h>
688
689 /*
690 * This is the header structure used for the lists, etc. (It has the
691 * above record in it.
692 */
693 struct nfsrv_stablefirst {
694 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
695 time_t nsf_eograce; /* Time grace period ends */
696 time_t *nsf_bootvals; /* Previous boottime values */
697 struct file *nsf_fp; /* File table pointer */
698 u_char nsf_flags; /* NFSNSF_ flags */
699 struct nfsf_rec nsf_rec; /* and above first record */
700 };
701 #define nsf_lease nsf_rec.lease
702 #define nsf_numboots nsf_rec.numboots
703
704 /* NFSNSF_xxx flags */
705 #define NFSNSF_UPDATEDONE 0x01
706 #define NFSNSF_GRACEOVER 0x02
707 #define NFSNSF_NEEDLOCK 0x04
708 #define NFSNSF_EXPIREDCLIENT 0x08
709 #define NFSNSF_NOOPENS 0x10
710 #define NFSNSF_OK 0x20
711
712 /*
713 * Maximum number of boot times allowed in record. Although there is
714 * really no need for a fixed upper bound, this serves as a sanity check
715 * for a corrupted file.
716 */
717 #define NFSNSF_MAXNUMBOOTS 10000
718
719 /*
720 * This structure defines the other records in the file. The
721 * nst_client array is actually the size of the client string name.
722 */
723 struct nfst_rec {
724 u_int16_t len;
725 u_char flag;
726 u_char client[1];
727 };
728 /* and the values for flag */
729 #define NFSNST_NEWSTATE 0x1
730 #define NFSNST_REVOKE 0x2
731 #define NFSNST_GOTSTATE 0x4
732 #define NFSNST_RECLAIMED 0x8
733
734 /*
735 * This structure is linked onto nfsrv_stablefirst for the duration of
736 * reclaim.
737 */
738 struct nfsrv_stable {
739 LIST_ENTRY(nfsrv_stable) nst_list;
740 struct nfsclient *nst_clp;
741 struct nfst_rec nst_rec;
742 };
743 #define nst_timestamp nst_rec.timestamp
744 #define nst_len nst_rec.len
745 #define nst_flag nst_rec.flag
746 #define nst_client nst_rec.client
747
748 /*
749 * At some point the server will run out of kernel storage for
750 * state structures. For FreeBSD5.2, this results in a panic
751 * kmem_map is full. It happens at well over 1000000 opens plus
752 * locks on a PIII-800 with 256Mbytes, so that is where I've set
753 * the limit. If your server panics due to too many opens/locks,
754 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
755 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
756 * increasing it.
757 */
758 #define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
759
760 /*
761 * The type required differs with BSDen (just the second arg).
762 */
763 void nfsrvd_rcv(struct socket *, void *, int);
764
765 /*
766 * Macros for handling socket addresses. (Hopefully this makes the code
767 * more portable, since I've noticed some 'BSD don't have sockaddrs in
768 * mbufs any more.)
769 */
770 #define NFSSOCKADDR(a, t) ((t)(a))
771 #define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
772
773 /*
774 * These should be defined as a process or thread structure, as required
775 * for signal handling, etc.
776 */
777 #define NFSNEWCRED(c) (crdup(c))
778 #define NFSPROCCRED(p) ((p)->td_ucred)
779 #define NFSFREECRED(c) (crfree(c))
780 #define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
781 #define NFSPROCP(p) ((p)->td_proc)
782
783 /*
784 * Define these so that cn_hash and its length is ignored.
785 */
786 #define NFSCNHASHZERO(c)
787 #define NFSCNHASH(c, v)
788 #define NCHNAMLEN 9999999
789
790 /*
791 * Handle SMP stuff:
792 */
793 #define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
794 #define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
795 #define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
796 #define NFSSTATEMUTEXPTR (&nfs_state_mutex)
797 #define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
798 #define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
799 #define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
800 #define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
801 #define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
802 #define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
803 #define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
804 #define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
805 #define NFSNAMEIDMUTEXPTR (&nfs_nameid_mutex)
806 #define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
807 #define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
808 #define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
809 #define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
810 #define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
811 #define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
812 #define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
813 #define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
814 #define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
815 #define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
816 #define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
817 #define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
818 #define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
819 #define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
820 #define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
821 #define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
822 #define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
823 #define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
824 #define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
825 #define NFSASSERTNODE(n) mtx_assert(&((n)->n_mtx), MA_OWNED)
826 #define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
827 #define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
828 #define NFSLOCKIOD() mtx_lock(&ncl_iod_mutex)
829 #define NFSUNLOCKIOD() mtx_unlock(&ncl_iod_mutex)
830 #define NFSASSERTIOD() mtx_assert(&ncl_iod_mutex, MA_OWNED)
831 #define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
832 #define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
833 #define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
834 #define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
835 #define NFSLOCKDS(d) mtx_lock(&((d)->nfsclds_mtx))
836 #define NFSUNLOCKDS(d) mtx_unlock(&((d)->nfsclds_mtx))
837 #define NFSSESSIONMUTEXPTR(s) (&((s)->mtx))
838 #define NFSLOCKSESSION(s) mtx_lock(&((s)->mtx))
839 #define NFSUNLOCKSESSION(s) mtx_unlock(&((s)->mtx))
840 #define NFSLAYOUTMUTEXPTR(l) (&((l)->mtx))
841 #define NFSLOCKLAYOUT(l) mtx_lock(&((l)->mtx))
842 #define NFSUNLOCKLAYOUT(l) mtx_unlock(&((l)->mtx))
843 #define NFSDDSMUTEXPTR (&nfsrv_dslock_mtx)
844 #define NFSDDSLOCK() mtx_lock(&nfsrv_dslock_mtx)
845 #define NFSDDSUNLOCK() mtx_unlock(&nfsrv_dslock_mtx)
846 #define NFSDDONTLISTMUTEXPTR (&nfsrv_dontlistlock_mtx)
847 #define NFSDDONTLISTLOCK() mtx_lock(&nfsrv_dontlistlock_mtx)
848 #define NFSDDONTLISTUNLOCK() mtx_unlock(&nfsrv_dontlistlock_mtx)
849 #define NFSDRECALLMUTEXPTR (&nfsrv_recalllock_mtx)
850 #define NFSDRECALLLOCK() mtx_lock(&nfsrv_recalllock_mtx)
851 #define NFSDRECALLUNLOCK() mtx_unlock(&nfsrv_recalllock_mtx)
852
853 /*
854 * Use these macros to initialize/free a mutex.
855 */
856 #define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
857 #define NFSFREEMUTEX(m) mtx_destroy((m))
858
859 int nfsmsleep(void *, void *, int, const char *, struct timespec *);
860
861 /*
862 * And weird vm stuff in the nfs server.
863 */
864 #define PDIRUNLOCK 0x0
865 #define MAX_COMMIT_COUNT (1024 * 1024)
866
867 /*
868 * Define these to handle the type of va_rdev.
869 */
870 #define NFSMAKEDEV(m, n) makedev((m), (n))
871 #define NFSMAJOR(d) major(d)
872 #define NFSMINOR(d) minor(d)
873
874 /*
875 * The vnode tag for nfsv4root.
876 */
877 #define VT_NFSV4ROOT "nfsv4root"
878
879 /*
880 * Define whatever it takes to do a vn_rdwr().
881 */
882 #define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
883 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
884
885 /*
886 * Macros for handling memory for different BSDen.
887 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
888 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
889 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
890 * NFSBZERO(cp, len) - set len bytes to 0x0
891 */
892 #define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
893 #define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
894 #define NFSBCMP(s, d, l) bcmp((s), (d), (l))
895 #define NFSBZERO(s, l) bzero((s), (l))
896
897 /*
898 * This must be defined to be a global variable that increments once
899 * per second, but never stops or goes backwards, even when a "date"
900 * command changes the TOD clock. It is used for delta times for
901 * leases, etc.
902 */
903 #define NFSD_MONOSEC time_uptime
904
905 /*
906 * Declare the malloc types.
907 */
908 MALLOC_DECLARE(M_NEWNFSRVCACHE);
909 MALLOC_DECLARE(M_NEWNFSDCLIENT);
910 MALLOC_DECLARE(M_NEWNFSDSTATE);
911 MALLOC_DECLARE(M_NEWNFSDLOCK);
912 MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
913 MALLOC_DECLARE(M_NEWNFSSTRING);
914 MALLOC_DECLARE(M_NEWNFSUSERGROUP);
915 MALLOC_DECLARE(M_NEWNFSDREQ);
916 MALLOC_DECLARE(M_NEWNFSFH);
917 MALLOC_DECLARE(M_NEWNFSCLOWNER);
918 MALLOC_DECLARE(M_NEWNFSCLOPEN);
919 MALLOC_DECLARE(M_NEWNFSCLDELEG);
920 MALLOC_DECLARE(M_NEWNFSCLCLIENT);
921 MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
922 MALLOC_DECLARE(M_NEWNFSCLLOCK);
923 MALLOC_DECLARE(M_NEWNFSDIROFF);
924 MALLOC_DECLARE(M_NEWNFSV4NODE);
925 MALLOC_DECLARE(M_NEWNFSMNT);
926 MALLOC_DECLARE(M_NEWNFSDROLLBACK);
927 MALLOC_DECLARE(M_NEWNFSLAYOUT);
928 MALLOC_DECLARE(M_NEWNFSFLAYOUT);
929 MALLOC_DECLARE(M_NEWNFSDEVINFO);
930 MALLOC_DECLARE(M_NEWNFSSOCKREQ);
931 MALLOC_DECLARE(M_NEWNFSCLDS);
932 MALLOC_DECLARE(M_NEWNFSLAYRECALL);
933 MALLOC_DECLARE(M_NEWNFSDSESSION);
934 #define M_NFSRVCACHE M_NEWNFSRVCACHE
935 #define M_NFSDCLIENT M_NEWNFSDCLIENT
936 #define M_NFSDSTATE M_NEWNFSDSTATE
937 #define M_NFSDLOCK M_NEWNFSDLOCK
938 #define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
939 #define M_NFSSTRING M_NEWNFSSTRING
940 #define M_NFSUSERGROUP M_NEWNFSUSERGROUP
941 #define M_NFSDREQ M_NEWNFSDREQ
942 #define M_NFSFH M_NEWNFSFH
943 #define M_NFSCLOWNER M_NEWNFSCLOWNER
944 #define M_NFSCLOPEN M_NEWNFSCLOPEN
945 #define M_NFSCLDELEG M_NEWNFSCLDELEG
946 #define M_NFSCLCLIENT M_NEWNFSCLCLIENT
947 #define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
948 #define M_NFSCLLOCK M_NEWNFSCLLOCK
949 #define M_NFSDIROFF M_NEWNFSDIROFF
950 #define M_NFSV4NODE M_NEWNFSV4NODE
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 *, int, int);
1004 int newnfs_realign(struct mbuf **, int);
1005 bool ncl_pager_setsize(struct vnode *vp, u_quad_t *nsizep);
1006 void ncl_copy_vattr(struct vnode *vp, struct vattr *dst, struct vattr *src);
1007
1008 /*
1009 * If the port runs on an SMP box that can enforce Atomic ops with low
1010 * overheads, define these as atomic increments/decrements. If not,
1011 * don't worry about it, since these are used for stats that can be
1012 * "out by one" without disastrous consequences.
1013 */
1014 #define NFSINCRGLOBAL(a) ((a)++)
1015 #define NFSDECRGLOBAL(a) ((a)--)
1016
1017 /*
1018 * These macros checks for a field in vattr being set.
1019 */
1020 #define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
1021 #define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
1022
1023 /*
1024 * Manipulate mount flags.
1025 */
1026 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
1027 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
1028 #define NFSSTA_OPENMODE 0x00200000 /* Must use correct open mode */
1029 #define NFSSTA_CASEINSENSITIVE 0x00400000 /* Case insensitive fs */
1030 #define NFSSTA_FLEXFILE 0x00800000 /* Use Flex File Layout */
1031 #define NFSSTA_NOLAYOUTCOMMIT 0x04000000 /* Don't do LayoutCommit */
1032 #define NFSSTA_SESSPERSIST 0x08000000 /* Has a persistent session */
1033 #define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
1034 #define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
1035 #define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
1036 #define NFSSTA_PNFS 0x80000000 /* pNFS is enabled */
1037
1038 #define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
1039 #define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
1040 #define NFSHASNFSV4N(n) ((n)->nm_minorvers > 0)
1041 #define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
1042 #define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
1043 #define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
1044 #define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
1045 #define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
1046 #define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
1047 #define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
1048 #define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
1049 #define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
1050 #define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
1051 #define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
1052 #define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
1053 #define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
1054 #define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
1055 #define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
1056 #define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
1057 #define NFSHASPNFSOPT(n) ((n)->nm_flag & NFSMNT_PNFS)
1058 #define NFSHASNOLAYOUTCOMMIT(n) ((n)->nm_state & NFSSTA_NOLAYOUTCOMMIT)
1059 #define NFSHASSESSPERSIST(n) ((n)->nm_state & NFSSTA_SESSPERSIST)
1060 #define NFSHASPNFS(n) ((n)->nm_state & NFSSTA_PNFS)
1061 #define NFSHASFLEXFILE(n) ((n)->nm_state & NFSSTA_FLEXFILE)
1062 #define NFSHASOPENMODE(n) ((n)->nm_state & NFSSTA_OPENMODE)
1063 #define NFSHASCASEINSENSITIVE(n) ((n)->nm_state & NFSSTA_CASEINSENSITIVE)
1064 #define NFSHASONEOPENOWN(n) (((n)->nm_flag & NFSMNT_ONEOPENOWN) != 0 && \
1065 (n)->nm_minorvers > 0)
1066 #define NFSHASTLS(n) (((n)->nm_newflag & NFSMNT_TLS) != 0)
1067 #define NFSHASSYSKRB5(n) (((n)->nm_newflag & NFSMNT_SYSKRB5) != 0)
1068
1069 /*
1070 * Set boottime.
1071 */
1072 #define NFSSETBOOTTIME(b) (getboottime(&b))
1073
1074 /*
1075 * The size of directory blocks in the buffer cache.
1076 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
1077 */
1078 #define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
1079
1080 /*
1081 * Define these macros to access mnt_flag fields.
1082 */
1083 #define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
1084 #endif /* _KERNEL */
1085
1086 /*
1087 * Define a structure similar to ufs_args for use in exporting the V4 root.
1088 */
1089 struct nfsex_args {
1090 char *fspec;
1091 struct export_args export;
1092 };
1093
1094 struct nfsex_oldargs {
1095 char *fspec;
1096 struct o2export_args export;
1097 };
1098
1099 /*
1100 * These export flags should be defined, but there are no bits left.
1101 * Maybe a separate mnt_exflag field could be added or the mnt_flag
1102 * field increased to 64 bits?
1103 */
1104 #ifndef MNT_EXSTRICTACCESS
1105 #define MNT_EXSTRICTACCESS 0x0
1106 #endif
1107 #ifndef MNT_EXV4ONLY
1108 #define MNT_EXV4ONLY 0x0
1109 #endif
1110
1111 #ifdef _KERNEL
1112 /*
1113 * Define this to invalidate the attribute cache for the nfs node.
1114 */
1115 #define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
1116
1117 /* Used for FreeBSD only */
1118 void nfsd_mntinit(void);
1119
1120 /*
1121 * Define these for vnode lock/unlock ops.
1122 *
1123 * These are good abstractions to macro out, so that they can be added to
1124 * later, for debugging or stats, etc.
1125 */
1126 #define NFSVOPLOCK(v, f) vn_lock((v), (f))
1127 #define NFSVOPUNLOCK(v) VOP_UNLOCK((v))
1128 #define NFSVOPISLOCKED(v) VOP_ISLOCKED((v))
1129
1130 /*
1131 * Define ncl_hash().
1132 */
1133 #define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
1134
1135 int newnfs_iosize(struct nfsmount *);
1136
1137 int newnfs_vncmpf(struct vnode *, void *);
1138
1139 #ifndef NFS_MINDIRATTRTIMO
1140 #define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
1141 #endif
1142 #ifndef NFS_MAXDIRATTRTIMO
1143 #define NFS_MAXDIRATTRTIMO 60
1144 #endif
1145
1146 /*
1147 * Nfs outstanding request list element
1148 */
1149 struct nfsreq {
1150 TAILQ_ENTRY(nfsreq) r_chain;
1151 u_int32_t r_flags; /* flags on request, see below */
1152 struct nfsmount *r_nmp; /* Client mnt ptr */
1153 struct mtx r_mtx; /* Mutex lock for this structure */
1154 };
1155
1156 #ifndef NFS_MAXBSIZE
1157 #define NFS_MAXBSIZE (maxbcachebuf)
1158 #endif
1159
1160 /*
1161 * This macro checks to see if issuing of delegations is allowed for this
1162 * vnode.
1163 */
1164 #ifdef VV_DISABLEDELEG
1165 #define NFSVNO_DELEGOK(v) \
1166 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0 || \
1167 (vn_irflag_read(v) & VIRF_NAMEDATTR) == 0)
1168 #else
1169 #define NFSVNO_DELEGOK(v) \
1170 ((v) == NULL || (vn_irflag_read(v) & VIRF_NAMEDATTR) == 0)
1171 #endif
1172
1173 /*
1174 * Name used by getnewvnode() to describe filesystem, "nfs".
1175 * For performance reasons it is useful to have the same string
1176 * used in both places that call getnewvnode().
1177 */
1178 extern const char nfs_vnode_tag[];
1179
1180 /*
1181 * Check for the errors that indicate a DS should be disabled.
1182 * ENXIO indicates that the krpc cannot do an RPC on the DS.
1183 * EIO is returned by the RPC as an indication of I/O problems on the
1184 * server.
1185 * Are there other fatal errors?
1186 */
1187 #define nfsds_failerr(e) ((e) == ENXIO || (e) == EIO)
1188
1189 /*
1190 * Get a pointer to the MDS session, which is always the first element
1191 * in the list.
1192 * This macro can only be safely used when the NFSLOCKMNT() lock is held.
1193 * The inline function can be used when the lock isn't held.
1194 */
1195 #define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess))
1196
1197 static __inline struct nfsclsession *
nfsmnt_mdssession(struct nfsmount * nmp)1198 nfsmnt_mdssession(struct nfsmount *nmp)
1199 {
1200 struct nfsclsession *tsep;
1201
1202 tsep = NULL;
1203 mtx_lock(&nmp->nm_mtx);
1204 if (TAILQ_FIRST(&nmp->nm_sess) != NULL)
1205 tsep = NFSMNT_MDSSESSION(nmp);
1206 mtx_unlock(&nmp->nm_mtx);
1207 return (tsep);
1208 }
1209
1210 #endif /* _KERNEL */
1211
1212 #endif /* _NFS_NFSPORT_H */
1213