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