82#include <net/if.h>
83#include <net/radix.h>
84#include <net/route.h>
85#include <net/if_dl.h>
86#include <netinet/in.h>
87#include <netinet/in_pcb.h>
88#include <netinet/in_systm.h>
89#include <netinet/in_var.h>
90#include <netinet/ip.h>
91#include <netinet/ip_var.h>
92#include <netinet/tcp.h>
93#include <netinet/tcp_fsm.h>
94#include <netinet/tcp_seq.h>
95#include <netinet/tcp_timer.h>
96#include <netinet/tcp_var.h>
97#include <machine/in_cksum.h>
98#include <crypto/des/des.h>
99#include <sys/md5.h>
100#include <rpc/rpc.h>
101#include <rpc/rpcsec_gss.h>
102
103/*
104 * For Darwin, these functions should be "static" when built in a kext.
105 * (This is always defined as nil otherwise.)
106 */
107#define APPLESTATIC
108#include <ufs/ufs/dir.h>
109#include <ufs/ufs/quota.h>
110#include <ufs/ufs/inode.h>
111#include <ufs/ufs/extattr.h>
112#include <ufs/ufs/ufsmount.h>
113#include <vm/uma.h>
114#include <vm/vm.h>
115#include <vm/vm_object.h>
116#include <vm/vm_extern.h>
117#include <nfs/nfssvc.h>
118#include "opt_nfs.h"
119#include "opt_ufs.h"
120
121/*
122 * These types must be defined before the nfs includes.
123 */
124#define NFSSOCKADDR_T struct sockaddr *
125#define NFSPROC_T struct thread
126#define NFSDEV_T dev_t
127#define NFSSVCARGS nfssvc_args
128#define NFSACL_T struct acl
129
130/*
131 * These should be defined as the types used for the corresponding VOP's
132 * argument type.
133 */
134#define NFS_ACCESS_ARGS struct vop_access_args
135#define NFS_OPEN_ARGS struct vop_open_args
136#define NFS_GETATTR_ARGS struct vop_getattr_args
137#define NFS_LOOKUP_ARGS struct vop_lookup_args
138#define NFS_READDIR_ARGS struct vop_readdir_args
139
140/*
141 * Allocate mbufs. Must succeed and never set the mbuf ptr to NULL.
142 */
143#define NFSMGET(m) do { \
144 MGET((m), M_TRYWAIT, MT_DATA); \
145 while ((m) == NULL ) { \
146 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
147 MGET((m), M_TRYWAIT, MT_DATA); \
148 } \
149 } while (0)
150#define NFSMGETHDR(m) do { \
151 MGETHDR((m), M_TRYWAIT, MT_DATA); \
152 while ((m) == NULL ) { \
153 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
154 MGETHDR((m), M_TRYWAIT, MT_DATA); \
155 } \
156 } while (0)
157#define NFSMCLGET(m, w) do { \
158 MGET((m), M_TRYWAIT, MT_DATA); \
159 while ((m) == NULL ) { \
160 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
161 MGET((m), M_TRYWAIT, MT_DATA); \
162 } \
163 MCLGET((m), (w)); \
164 } while (0)
165#define NFSMCLGETHDR(m, w) do { \
166 MGETHDR((m), M_TRYWAIT, MT_DATA); \
167 while ((m) == NULL ) { \
168 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
169 MGETHDR((m), M_TRYWAIT, MT_DATA); \
170 } \
171 } while (0)
172#define NFSMTOD mtod
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/* Quirky case if the illegal op code */
233#define NFSV4OP_OPILLEGAL 10044
234
235/*
236 * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV4OP_NOPS.
237 */
238#define NFSV4OP_SYMLINK (NFSV4OP_NOPS)
239#define NFSV4OP_MKDIR (NFSV4OP_NOPS + 1)
240#define NFSV4OP_RMDIR (NFSV4OP_NOPS + 2)
241#define NFSV4OP_READDIRPLUS (NFSV4OP_NOPS + 3)
242#define NFSV4OP_MKNOD (NFSV4OP_NOPS + 4)
243#define NFSV4OP_FSSTAT (NFSV4OP_NOPS + 5)
244#define NFSV4OP_FSINFO (NFSV4OP_NOPS + 6)
245#define NFSV4OP_PATHCONF (NFSV4OP_NOPS + 7)
246#define NFSV4OP_V3CREATE (NFSV4OP_NOPS + 8)
247
248/*
249 * This is the count of the fake operations listed above.
250 */
251#define NFSV4OP_FAKENOPS 9
252
253/*
254 * and the Callback OPs
255 */
256#define NFSV4OP_CBGETATTR 3
257#define NFSV4OP_CBRECALL 4
258
259/*
260 * Must be one greater than the last Callback Operation#.
261 */
262#define NFSV4OP_CBNOPS 5
263
264/*
265 * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
266 * numbers used by NFSv4.
267 * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
268 * one greater than the last number.
269 */
270#ifndef NFS_V3NPROCS
271#define NFS_V3NPROCS 22
272
273#define NFSPROC_LOOKUPP 22
274#define NFSPROC_SETCLIENTID 23
275#define NFSPROC_SETCLIENTIDCFRM 24
276#define NFSPROC_LOCK 25
277#define NFSPROC_LOCKU 26
278#define NFSPROC_OPEN 27
279#define NFSPROC_CLOSE 28
280#define NFSPROC_OPENCONFIRM 29
281#define NFSPROC_LOCKT 30
282#define NFSPROC_OPENDOWNGRADE 31
283#define NFSPROC_RENEW 32
284#define NFSPROC_PUTROOTFH 33
285#define NFSPROC_RELEASELCKOWN 34
286#define NFSPROC_DELEGRETURN 35
287#define NFSPROC_RETDELEGREMOVE 36
288#define NFSPROC_RETDELEGRENAME1 37
289#define NFSPROC_RETDELEGRENAME2 38
290#define NFSPROC_GETACL 39
291#define NFSPROC_SETACL 40
292
293/*
294 * Must be defined as one higher than the last Proc# above.
295 */
296#define NFSV4_NPROCS 41
297#endif /* NFS_V3NPROCS */
298
299/*
300 * Stats structure
301 */
302struct ext_nfsstats {
303 int attrcache_hits;
304 int attrcache_misses;
305 int lookupcache_hits;
306 int lookupcache_misses;
307 int direofcache_hits;
308 int direofcache_misses;
309 int accesscache_hits;
310 int accesscache_misses;
311 int biocache_reads;
312 int read_bios;
313 int read_physios;
314 int biocache_writes;
315 int write_bios;
316 int write_physios;
317 int biocache_readlinks;
318 int readlink_bios;
319 int biocache_readdirs;
320 int readdir_bios;
321 int rpccnt[NFSV4_NPROCS];
322 int rpcretries;
323 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
324 int srvrpc_errs;
325 int srv_errs;
326 int rpcrequests;
327 int rpctimeouts;
328 int rpcunexpected;
329 int rpcinvalid;
330 int srvcache_inproghits;
331 int srvcache_idemdonehits;
332 int srvcache_nonidemdonehits;
333 int srvcache_misses;
334 int srvcache_tcppeak;
335 int srvcache_size;
336 int srvclients;
337 int srvopenowners;
338 int srvopens;
339 int srvlockowners;
340 int srvlocks;
341 int srvdelegates;
342 int cbrpccnt[NFSV4OP_CBNOPS];
343 int clopenowners;
344 int clopens;
345 int cllockowners;
346 int cllocks;
347 int cldelegates;
348 int cllocalopenowners;
349 int cllocalopens;
350 int cllocallockowners;
351 int cllocallocks;
352};
353
354#ifdef _KERNEL
355/*
356 * Define the ext_nfsstats as nfsstats for the kernel code.
357 */
358#define nfsstats ext_nfsstats
359
360/*
361 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
362 */
363#ifndef NFS_NPROCS
364#define NFS_NPROCS NFSV4_NPROCS
365#endif
366
367#include <fs/nfs/nfskpiport.h>
368#include <fs/nfs/nfsdport.h>
369#include <fs/nfs/rpcv2.h>
370#include <fs/nfs/nfsproto.h>
371#include <fs/nfs/nfs.h>
372#include <fs/nfs/nfs_var.h>
373#include <fs/nfs/nfsm_subs.h>
374#include <fs/nfs/nfsrvcache.h>
375#include <fs/nfs/nfsrvstate.h>
376#include <fs/nfs/xdr_subs.h>
377#include <fs/nfs/nfscl.h>
378#include <fs/nfs/nfsclstate.h>
379#include <nfsclient/nfsargs.h>
380#include <fs/nfsclient/nfsmount.h>
381
382/*
383 * Just to keep nfs_var.h happy.
384 */
385struct nfs_vattr {
386 int junk;
387};
388
389struct nfsvattr {
390 struct vattr na_vattr;
391 nfsattrbit_t na_suppattr;
392 u_int32_t na_mntonfileno;
393 u_int64_t na_filesid[2];
394};
395
396#define na_type na_vattr.va_type
397#define na_mode na_vattr.va_mode
398#define na_nlink na_vattr.va_nlink
399#define na_uid na_vattr.va_uid
400#define na_gid na_vattr.va_gid
401#define na_fsid na_vattr.va_fsid
402#define na_fileid na_vattr.va_fileid
403#define na_size na_vattr.va_size
404#define na_blocksize na_vattr.va_blocksize
405#define na_atime na_vattr.va_atime
406#define na_mtime na_vattr.va_mtime
407#define na_ctime na_vattr.va_ctime
408#define na_gen na_vattr.va_gen
409#define na_flags na_vattr.va_flags
410#define na_rdev na_vattr.va_rdev
411#define na_bytes na_vattr.va_bytes
412#define na_filerev na_vattr.va_filerev
413#define na_vaflags na_vattr.va_vaflags
414
415#include <fs/nfsclient/nfsnode.h>
416
417/*
418 * This is the header structure used for the lists, etc. (It has the
419 * above record in it.
420 */
421struct nfsrv_stablefirst {
422 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
423 time_t nsf_eograce; /* Time grace period ends */
424 time_t *nsf_bootvals; /* Previous boottime values */
425 struct file *nsf_fp; /* File table pointer */
426 u_char nsf_flags; /* NFSNSF_ flags */
427 struct nfsf_rec nsf_rec; /* and above first record */
428};
429#define nsf_lease nsf_rec.lease
430#define nsf_numboots nsf_rec.numboots
431
432/* NFSNSF_xxx flags */
433#define NFSNSF_UPDATEDONE 0x01
434#define NFSNSF_GRACEOVER 0x02
435#define NFSNSF_NEEDLOCK 0x04
436#define NFSNSF_EXPIREDCLIENT 0x08
437#define NFSNSF_NOOPENS 0x10
438#define NFSNSF_OK 0x20
439
440/*
441 * Maximum number of boot times allowed in record. Although there is
442 * really no need for a fixed upper bound, this serves as a sanity check
443 * for a corrupted file.
444 */
445#define NFSNSF_MAXNUMBOOTS 10000
446
447/*
448 * This structure defines the other records in the file. The
449 * nst_client array is actually the size of the client string name.
450 */
451struct nfst_rec {
452 u_int16_t len;
453 u_char flag;
454 u_char client[1];
455};
456/* and the values for flag */
457#define NFSNST_NEWSTATE 0x1
458#define NFSNST_REVOKE 0x2
459#define NFSNST_GOTSTATE 0x4
460
461/*
462 * This structure is linked onto nfsrv_stablefirst for the duration of
463 * reclaim.
464 */
465struct nfsrv_stable {
466 LIST_ENTRY(nfsrv_stable) nst_list;
467 struct nfsclient *nst_clp;
468 struct nfst_rec nst_rec;
469};
470#define nst_timestamp nst_rec.timestamp
471#define nst_len nst_rec.len
472#define nst_flag nst_rec.flag
473#define nst_client nst_rec.client
474
475/*
476 * At some point the server will run out of kernel storage for
477 * state structures. For FreeBSD5.2, this results in a panic
478 * kmem_map is full. It happens at well over 1000000 opens plus
479 * locks on a PIII-800 with 256Mbytes, so that is where I've set
480 * the limit. If your server panics due to too many opens/locks,
481 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
482 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
483 * increasing it.
484 */
485#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
486
487/*
488 * The type required differs with BSDen (just the second arg).
489 */
490void nfsrvd_rcv(struct socket *, void *, int);
491
492/*
493 * Macros for handling socket addresses. (Hopefully this makes the code
494 * more portable, since I've noticed some 'BSD don't have sockaddrs in
495 * mbufs any more.)
496 */
497#define NFSSOCKADDR(a, t) ((t)(a))
498#define NFSSOCKADDRALLOC(a) \
499 do { \
500 MALLOC((a), struct sockaddr *, sizeof (struct sockaddr), \
501 M_SONAME, M_WAITOK); \
502 NFSBZERO((a), sizeof (struct sockaddr)); \
503 } while (0)
504#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
505#define NFSSOCKADDRFREE(a) \
506 do { \
507 if (a) \
508 FREE((caddr_t)(a), M_SONAME); \
509 } while (0)
510
511/*
512 * These should be defined as a process or thread structure, as required
513 * for signal handling, etc.
514 */
515#define NFSNEWCRED(c) (crdup(c))
516#define NFSPROCCRED(p) ((p)->td_ucred)
517#define NFSFREECRED(c) (crfree(c))
518#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
519#define NFSPROCP(p) ((p)->td_proc)
520
521/*
522 * Define these so that cn_hash and its length is ignored.
523 */
524#define NFSCNHASHZERO(c)
525#define NFSCNHASH(c, v)
526#define NCHNAMLEN 9999999
527
528/*
529 * Define these to use the time of day clock.
530 */
531#define NFSGETTIME(t) (getmicrotime(t))
532#define NFSGETNANOTIME(t) (getnanotime(t))
533
534/*
535 * These macros are defined to initialize and set the timer routine.
536 */
537#define NFS_TIMERINIT \
538 newnfs_timer(NULL)
539
540/*
541 * Handle SMP stuff:
542 */
543#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
544#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
545#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
546#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
547#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
548#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
549#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
550#define NFSCACHEMUTEX extern struct mtx nfs_cache_mutex
551#define NFSCACHEMUTEXPTR (&nfs_cache_mutex)
552#define NFSLOCKCACHE() mtx_lock(&nfs_cache_mutex)
553#define NFSUNLOCKCACHE() mtx_unlock(&nfs_cache_mutex)
554#define NFSCACHELOCKREQUIRED() mtx_assert(&nfs_cache_mutex, MA_OWNED)
555#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
556#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
557#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
558#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
559#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
560#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
561#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
562#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
563#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
564#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
565#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
566#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
567#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
568#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
569#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
570#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
571#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
572#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
573#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
574#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
575#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
576#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
577#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
578#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
579#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
580#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
581#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
582#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
583#define NFSPROCLISTLOCK() sx_slock(&allproc_lock)
584#define NFSPROCLISTUNLOCK() sx_sunlock(&allproc_lock)
585#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
586#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
587
588/*
589 * Use these macros to initialize/free a mutex.
590 */
591#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
592#define NFSFREEMUTEX(m) mtx_destroy((m))
593
594int nfsmsleep(void *, void *, int, const char *, struct timespec *);
595
596/*
597 * And weird vm stuff in the nfs server.
598 */
599#define PDIRUNLOCK 0x0
600#define MAX_COMMIT_COUNT (1024 * 1024)
601
602/*
603 * Define these to handle the type of va_rdev.
604 */
605#define NFSMAKEDEV(m, n) makedev((m), (n))
606#define NFSMAJOR(d) major(d)
607#define NFSMINOR(d) minor(d)
608
609/*
610 * Define this to be the macro that returns the minimum size required
611 * for a directory entry.
612 */
613#define DIRENT_SIZE(dp) GENERIC_DIRSIZ(dp)
614
615/*
616 * The vnode tag for nfsv4root.
617 */
618#define VT_NFSV4ROOT "nfsv4root"
619
620/*
621 * Define whatever it takes to do a vn_rdwr().
622 */
623#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
624 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
625
626/*
627 * Macros for handling memory for different BSDen.
628 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
629 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
630 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
631 * NFSBZERO(cp, len) - set len bytes to 0x0
632 */
633#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
634#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
635#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
636#define NFSBZERO(s, l) bzero((s), (l))
637
638/*
639 * Some queue.h files don't have these dfined in them.
640 */
641#define LIST_END(head) NULL
642#define SLIST_END(head) NULL
643#define TAILQ_END(head) NULL
644
645/*
646 * This must be defined to be a global variable that increments once
647 * per second, but never stops or goes backwards, even when a "date"
648 * command changes the TOD clock. It is used for delta times for
649 * leases, etc.
650 */
651#define NFSD_MONOSEC time_uptime
652
653/*
654 * Declare the malloc types.
655 */
656MALLOC_DECLARE(M_NEWNFSRVCACHE);
657MALLOC_DECLARE(M_NEWNFSDCLIENT);
658MALLOC_DECLARE(M_NEWNFSDSTATE);
659MALLOC_DECLARE(M_NEWNFSDLOCK);
660MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
661MALLOC_DECLARE(M_NEWNFSSTRING);
662MALLOC_DECLARE(M_NEWNFSUSERGROUP);
663MALLOC_DECLARE(M_NEWNFSDREQ);
664MALLOC_DECLARE(M_NEWNFSFH);
665MALLOC_DECLARE(M_NEWNFSCLOWNER);
666MALLOC_DECLARE(M_NEWNFSCLOPEN);
667MALLOC_DECLARE(M_NEWNFSCLDELEG);
668MALLOC_DECLARE(M_NEWNFSCLCLIENT);
669MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
670MALLOC_DECLARE(M_NEWNFSCLLOCK);
671MALLOC_DECLARE(M_NEWNFSDIROFF);
672MALLOC_DECLARE(M_NEWNFSV4NODE);
673MALLOC_DECLARE(M_NEWNFSDIRECTIO);
674MALLOC_DECLARE(M_NEWNFSMNT);
675MALLOC_DECLARE(M_NEWNFSDROLLBACK);
676#define M_NFSRVCACHE M_NEWNFSRVCACHE
677#define M_NFSDCLIENT M_NEWNFSDCLIENT
678#define M_NFSDSTATE M_NEWNFSDSTATE
679#define M_NFSDLOCK M_NEWNFSDLOCK
680#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
681#define M_NFSSTRING M_NEWNFSSTRING
682#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
683#define M_NFSDREQ M_NEWNFSDREQ
684#define M_NFSFH M_NEWNFSFH
685#define M_NFSCLOWNER M_NEWNFSCLOWNER
686#define M_NFSCLOPEN M_NEWNFSCLOPEN
687#define M_NFSCLDELEG M_NEWNFSCLDELEG
688#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
689#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
690#define M_NFSCLLOCK M_NEWNFSCLLOCK
691#define M_NFSDIROFF M_NEWNFSDIROFF
692#define M_NFSV4NODE M_NEWNFSV4NODE
693#define M_NFSDIRECTIO M_NEWNFSDIRECTIO
694#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
695
696#define NFSINT_SIGMASK(set) \
697 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
698 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
699 SIGISMEMBER(set, SIGQUIT))
700
701/*
702 * Convert a quota block count to byte count.
703 */
704#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
705
706/*
707 * Define this as the largest file size supported. (It should probably
708 * be available via a VFS_xxx Op, but it isn't.
709 */
710#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
711
712/*
713 * Set this macro to index() or strchr(), whichever is supported.
714 */
715#define STRCHR(s, c) strchr((s), (c))
716
717/*
718 * Set the n_time in the client write rpc, as required.
719 */
720#define NFSWRITERPC_SETTIME(w, n, v4) \
721 do { \
722 if (w) { \
723 (n)->n_mtime = (n)->n_vattr.na_vattr.va_mtime; \
724 if (v4) \
725 (n)->n_change = (n)->n_vattr.na_vattr.va_filerev; \
726 } \
727 } while (0)
728
729/*
730 * Fake value, just to make the client work.
731 */
732#define NFS_LATTR_NOSHRINK 1
733
734/*
735 * Prototypes for functions where the arguments vary for different ports.
736 */
737int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *,
738 int, int);
739void newnfs_realign(struct mbuf **);
740
741/*
742 * If the port runs on an SMP box that can enforce Atomic ops with low
743 * overheads, define these as atomic increments/decrements. If not,
744 * don't worry about it, since these are used for stats that can be
745 * "out by one" without disastrous consequences.
746 */
747#define NFSINCRGLOBAL(a) ((a)++)
748
749/*
750 * Assorted funky stuff to make things work under Darwin8.
751 */
752/*
753 * These macros checks for a field in vattr being set.
754 */
755#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
756#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
757
758/*
759 * Manipulate mount flags.
760 */
761#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
762#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
763#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
764#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
765#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
766
767#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
768#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
769#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
770#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
771#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
772#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
773#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
774#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
775#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
776#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
777#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
778#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
779#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
780#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
781#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
782#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
783#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
784#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
785
786/*
787 * Gets the stats field out of the mount structure.
788 */
789#define vfs_statfs(m) (&((m)->mnt_stat))
790
791/*
792 * Set boottime.
793 */
794#define NFSSETBOOTTIME(b) ((b) = boottime)
795
796/*
797 * The size of directory blocks in the buffer cache.
798 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
799 */
800#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
801
802/*
803 * Define these macros to access mnt_flag fields.
804 */
805#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
806#endif /* _KERNEL */
807
808/*
809 * Define a structure similar to ufs_args for use in exporting the V4 root.
810 */
811struct nfsex_args {
812 char *fspec;
813 struct export_args export;
814};
815
816/*
817 * These export flags should be defined, but there are no bits left.
818 * Maybe a separate mnt_exflag field could be added or the mnt_flag
819 * field increased to 64 bits?
820 */
821#ifndef MNT_EXSTRICTACCESS
822#define MNT_EXSTRICTACCESS 0x0
823#endif
824#ifndef MNT_EXV4ONLY
825#define MNT_EXV4ONLY 0x0
826#endif
827
828#ifdef _KERNEL
829/*
830 * Define this to invalidate the attribute cache for the nfs node.
831 */
832#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
833
834/* Used for FreeBSD only */
835void nfsd_mntinit(void);
836
837/*
838 * Define these for vnode lock/unlock ops.
839 *
840 * These are good abstractions to macro out, so that they can be added to
841 * later, for debugging or stats, etc.
842 */
843#define NFSVOPLOCK(v, f) vn_lock((v), (f))
844#define NFSVOPUNLOCK(v, f) VOP_UNLOCK((v), (f))
845#define NFSVOPISLOCKED(v) VOP_ISLOCKED((v))
846
847/*
848 * Define ncl_hash().
849 */
850#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
851
852int newnfs_iosize(struct nfsmount *);
853
854#ifdef NFS_DEBUG
855
856extern int nfs_debug;
857#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
858#define NFS_DEBUG_WG 2 /* server write gathering */
859#define NFS_DEBUG_RC 4 /* server request caching */
860
861#define NFS_DPF(cat, args) \
862 do { \
863 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
864 } while (0)
865
866#else
867
868#define NFS_DPF(cat, args)
869
870#endif
871
872int newnfs_vncmpf(struct vnode *, void *);
873
874#ifndef NFS_MINDIRATTRTIMO
875#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
876#endif
877#ifndef NFS_MAXDIRATTRTIMO
878#define NFS_MAXDIRATTRTIMO 60
879#endif
880
881/*
882 * Nfs outstanding request list element
883 */
884struct nfsreq {
885 TAILQ_ENTRY(nfsreq) r_chain;
886 u_int32_t r_flags; /* flags on request, see below */
887 struct nfsmount *r_nmp; /* Client mnt ptr */
888 struct mtx r_mtx; /* Mutex lock for this structure */
889};
890
891#ifndef NFS_MAXBSIZE
892#define NFS_MAXBSIZE MAXBSIZE
893#endif
894
895/*
896 * This macro checks to see if issuing of delegations is allowed for this
897 * vnode.
898 */
899#ifdef VV_DISABLEDELEG
900#define NFSVNO_DELEGOK(v) \
901 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
902#else
903#define NFSVNO_DELEGOK(v) (1)
904#endif
905
906/*
907 * Define this as the flags argument for msleep() when catching signals
908 * while holding a resource that other threads would block for, such as
909 * a vnode lock.
910 */
911#define NFS_PCATCH (PCATCH | PBDRY)
912
913#endif /* _KERNEL */
914
915#endif /* _NFS_NFSPORT_H */
| 81#include <net/if.h>
82#include <net/radix.h>
83#include <net/route.h>
84#include <net/if_dl.h>
85#include <netinet/in.h>
86#include <netinet/in_pcb.h>
87#include <netinet/in_systm.h>
88#include <netinet/in_var.h>
89#include <netinet/ip.h>
90#include <netinet/ip_var.h>
91#include <netinet/tcp.h>
92#include <netinet/tcp_fsm.h>
93#include <netinet/tcp_seq.h>
94#include <netinet/tcp_timer.h>
95#include <netinet/tcp_var.h>
96#include <machine/in_cksum.h>
97#include <crypto/des/des.h>
98#include <sys/md5.h>
99#include <rpc/rpc.h>
100#include <rpc/rpcsec_gss.h>
101
102/*
103 * For Darwin, these functions should be "static" when built in a kext.
104 * (This is always defined as nil otherwise.)
105 */
106#define APPLESTATIC
107#include <ufs/ufs/dir.h>
108#include <ufs/ufs/quota.h>
109#include <ufs/ufs/inode.h>
110#include <ufs/ufs/extattr.h>
111#include <ufs/ufs/ufsmount.h>
112#include <vm/uma.h>
113#include <vm/vm.h>
114#include <vm/vm_object.h>
115#include <vm/vm_extern.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_TRYWAIT, MT_DATA); \
144 while ((m) == NULL ) { \
145 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
146 MGET((m), M_TRYWAIT, MT_DATA); \
147 } \
148 } while (0)
149#define NFSMGETHDR(m) do { \
150 MGETHDR((m), M_TRYWAIT, MT_DATA); \
151 while ((m) == NULL ) { \
152 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
153 MGETHDR((m), M_TRYWAIT, MT_DATA); \
154 } \
155 } while (0)
156#define NFSMCLGET(m, w) do { \
157 MGET((m), M_TRYWAIT, MT_DATA); \
158 while ((m) == NULL ) { \
159 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
160 MGET((m), M_TRYWAIT, MT_DATA); \
161 } \
162 MCLGET((m), (w)); \
163 } while (0)
164#define NFSMCLGETHDR(m, w) do { \
165 MGETHDR((m), M_TRYWAIT, MT_DATA); \
166 while ((m) == NULL ) { \
167 (void) nfs_catnap(PZERO, 0, "nfsmget"); \
168 MGETHDR((m), M_TRYWAIT, MT_DATA); \
169 } \
170 } while (0)
171#define NFSMTOD mtod
172
173/*
174 * Client side constant for size of a lockowner name.
175 */
176#define NFSV4CL_LOCKNAMELEN 12
177
178/*
179 * Type for a mutex lock.
180 */
181#define NFSMUTEX_T struct mtx
182
183#endif /* _KERNEL */
184
185/*
186 * NFSv4 Operation numbers.
187 */
188#define NFSV4OP_ACCESS 3
189#define NFSV4OP_CLOSE 4
190#define NFSV4OP_COMMIT 5
191#define NFSV4OP_CREATE 6
192#define NFSV4OP_DELEGPURGE 7
193#define NFSV4OP_DELEGRETURN 8
194#define NFSV4OP_GETATTR 9
195#define NFSV4OP_GETFH 10
196#define NFSV4OP_LINK 11
197#define NFSV4OP_LOCK 12
198#define NFSV4OP_LOCKT 13
199#define NFSV4OP_LOCKU 14
200#define NFSV4OP_LOOKUP 15
201#define NFSV4OP_LOOKUPP 16
202#define NFSV4OP_NVERIFY 17
203#define NFSV4OP_OPEN 18
204#define NFSV4OP_OPENATTR 19
205#define NFSV4OP_OPENCONFIRM 20
206#define NFSV4OP_OPENDOWNGRADE 21
207#define NFSV4OP_PUTFH 22
208#define NFSV4OP_PUTPUBFH 23
209#define NFSV4OP_PUTROOTFH 24
210#define NFSV4OP_READ 25
211#define NFSV4OP_READDIR 26
212#define NFSV4OP_READLINK 27
213#define NFSV4OP_REMOVE 28
214#define NFSV4OP_RENAME 29
215#define NFSV4OP_RENEW 30
216#define NFSV4OP_RESTOREFH 31
217#define NFSV4OP_SAVEFH 32
218#define NFSV4OP_SECINFO 33
219#define NFSV4OP_SETATTR 34
220#define NFSV4OP_SETCLIENTID 35
221#define NFSV4OP_SETCLIENTIDCFRM 36
222#define NFSV4OP_VERIFY 37
223#define NFSV4OP_WRITE 38
224#define NFSV4OP_RELEASELCKOWN 39
225
226/*
227 * Must be one greater than the last Operation#.
228 */
229#define NFSV4OP_NOPS 40
230
231/* Quirky case if the illegal op code */
232#define NFSV4OP_OPILLEGAL 10044
233
234/*
235 * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV4OP_NOPS.
236 */
237#define NFSV4OP_SYMLINK (NFSV4OP_NOPS)
238#define NFSV4OP_MKDIR (NFSV4OP_NOPS + 1)
239#define NFSV4OP_RMDIR (NFSV4OP_NOPS + 2)
240#define NFSV4OP_READDIRPLUS (NFSV4OP_NOPS + 3)
241#define NFSV4OP_MKNOD (NFSV4OP_NOPS + 4)
242#define NFSV4OP_FSSTAT (NFSV4OP_NOPS + 5)
243#define NFSV4OP_FSINFO (NFSV4OP_NOPS + 6)
244#define NFSV4OP_PATHCONF (NFSV4OP_NOPS + 7)
245#define NFSV4OP_V3CREATE (NFSV4OP_NOPS + 8)
246
247/*
248 * This is the count of the fake operations listed above.
249 */
250#define NFSV4OP_FAKENOPS 9
251
252/*
253 * and the Callback OPs
254 */
255#define NFSV4OP_CBGETATTR 3
256#define NFSV4OP_CBRECALL 4
257
258/*
259 * Must be one greater than the last Callback Operation#.
260 */
261#define NFSV4OP_CBNOPS 5
262
263/*
264 * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
265 * numbers used by NFSv4.
266 * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
267 * one greater than the last number.
268 */
269#ifndef NFS_V3NPROCS
270#define NFS_V3NPROCS 22
271
272#define NFSPROC_LOOKUPP 22
273#define NFSPROC_SETCLIENTID 23
274#define NFSPROC_SETCLIENTIDCFRM 24
275#define NFSPROC_LOCK 25
276#define NFSPROC_LOCKU 26
277#define NFSPROC_OPEN 27
278#define NFSPROC_CLOSE 28
279#define NFSPROC_OPENCONFIRM 29
280#define NFSPROC_LOCKT 30
281#define NFSPROC_OPENDOWNGRADE 31
282#define NFSPROC_RENEW 32
283#define NFSPROC_PUTROOTFH 33
284#define NFSPROC_RELEASELCKOWN 34
285#define NFSPROC_DELEGRETURN 35
286#define NFSPROC_RETDELEGREMOVE 36
287#define NFSPROC_RETDELEGRENAME1 37
288#define NFSPROC_RETDELEGRENAME2 38
289#define NFSPROC_GETACL 39
290#define NFSPROC_SETACL 40
291
292/*
293 * Must be defined as one higher than the last Proc# above.
294 */
295#define NFSV4_NPROCS 41
296#endif /* NFS_V3NPROCS */
297
298/*
299 * Stats structure
300 */
301struct ext_nfsstats {
302 int attrcache_hits;
303 int attrcache_misses;
304 int lookupcache_hits;
305 int lookupcache_misses;
306 int direofcache_hits;
307 int direofcache_misses;
308 int accesscache_hits;
309 int accesscache_misses;
310 int biocache_reads;
311 int read_bios;
312 int read_physios;
313 int biocache_writes;
314 int write_bios;
315 int write_physios;
316 int biocache_readlinks;
317 int readlink_bios;
318 int biocache_readdirs;
319 int readdir_bios;
320 int rpccnt[NFSV4_NPROCS];
321 int rpcretries;
322 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
323 int srvrpc_errs;
324 int srv_errs;
325 int rpcrequests;
326 int rpctimeouts;
327 int rpcunexpected;
328 int rpcinvalid;
329 int srvcache_inproghits;
330 int srvcache_idemdonehits;
331 int srvcache_nonidemdonehits;
332 int srvcache_misses;
333 int srvcache_tcppeak;
334 int srvcache_size;
335 int srvclients;
336 int srvopenowners;
337 int srvopens;
338 int srvlockowners;
339 int srvlocks;
340 int srvdelegates;
341 int cbrpccnt[NFSV4OP_CBNOPS];
342 int clopenowners;
343 int clopens;
344 int cllockowners;
345 int cllocks;
346 int cldelegates;
347 int cllocalopenowners;
348 int cllocalopens;
349 int cllocallockowners;
350 int cllocallocks;
351};
352
353#ifdef _KERNEL
354/*
355 * Define the ext_nfsstats as nfsstats for the kernel code.
356 */
357#define nfsstats ext_nfsstats
358
359/*
360 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
361 */
362#ifndef NFS_NPROCS
363#define NFS_NPROCS NFSV4_NPROCS
364#endif
365
366#include <fs/nfs/nfskpiport.h>
367#include <fs/nfs/nfsdport.h>
368#include <fs/nfs/rpcv2.h>
369#include <fs/nfs/nfsproto.h>
370#include <fs/nfs/nfs.h>
371#include <fs/nfs/nfs_var.h>
372#include <fs/nfs/nfsm_subs.h>
373#include <fs/nfs/nfsrvcache.h>
374#include <fs/nfs/nfsrvstate.h>
375#include <fs/nfs/xdr_subs.h>
376#include <fs/nfs/nfscl.h>
377#include <fs/nfs/nfsclstate.h>
378#include <nfsclient/nfsargs.h>
379#include <fs/nfsclient/nfsmount.h>
380
381/*
382 * Just to keep nfs_var.h happy.
383 */
384struct nfs_vattr {
385 int junk;
386};
387
388struct nfsvattr {
389 struct vattr na_vattr;
390 nfsattrbit_t na_suppattr;
391 u_int32_t na_mntonfileno;
392 u_int64_t na_filesid[2];
393};
394
395#define na_type na_vattr.va_type
396#define na_mode na_vattr.va_mode
397#define na_nlink na_vattr.va_nlink
398#define na_uid na_vattr.va_uid
399#define na_gid na_vattr.va_gid
400#define na_fsid na_vattr.va_fsid
401#define na_fileid na_vattr.va_fileid
402#define na_size na_vattr.va_size
403#define na_blocksize na_vattr.va_blocksize
404#define na_atime na_vattr.va_atime
405#define na_mtime na_vattr.va_mtime
406#define na_ctime na_vattr.va_ctime
407#define na_gen na_vattr.va_gen
408#define na_flags na_vattr.va_flags
409#define na_rdev na_vattr.va_rdev
410#define na_bytes na_vattr.va_bytes
411#define na_filerev na_vattr.va_filerev
412#define na_vaflags na_vattr.va_vaflags
413
414#include <fs/nfsclient/nfsnode.h>
415
416/*
417 * This is the header structure used for the lists, etc. (It has the
418 * above record in it.
419 */
420struct nfsrv_stablefirst {
421 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
422 time_t nsf_eograce; /* Time grace period ends */
423 time_t *nsf_bootvals; /* Previous boottime values */
424 struct file *nsf_fp; /* File table pointer */
425 u_char nsf_flags; /* NFSNSF_ flags */
426 struct nfsf_rec nsf_rec; /* and above first record */
427};
428#define nsf_lease nsf_rec.lease
429#define nsf_numboots nsf_rec.numboots
430
431/* NFSNSF_xxx flags */
432#define NFSNSF_UPDATEDONE 0x01
433#define NFSNSF_GRACEOVER 0x02
434#define NFSNSF_NEEDLOCK 0x04
435#define NFSNSF_EXPIREDCLIENT 0x08
436#define NFSNSF_NOOPENS 0x10
437#define NFSNSF_OK 0x20
438
439/*
440 * Maximum number of boot times allowed in record. Although there is
441 * really no need for a fixed upper bound, this serves as a sanity check
442 * for a corrupted file.
443 */
444#define NFSNSF_MAXNUMBOOTS 10000
445
446/*
447 * This structure defines the other records in the file. The
448 * nst_client array is actually the size of the client string name.
449 */
450struct nfst_rec {
451 u_int16_t len;
452 u_char flag;
453 u_char client[1];
454};
455/* and the values for flag */
456#define NFSNST_NEWSTATE 0x1
457#define NFSNST_REVOKE 0x2
458#define NFSNST_GOTSTATE 0x4
459
460/*
461 * This structure is linked onto nfsrv_stablefirst for the duration of
462 * reclaim.
463 */
464struct nfsrv_stable {
465 LIST_ENTRY(nfsrv_stable) nst_list;
466 struct nfsclient *nst_clp;
467 struct nfst_rec nst_rec;
468};
469#define nst_timestamp nst_rec.timestamp
470#define nst_len nst_rec.len
471#define nst_flag nst_rec.flag
472#define nst_client nst_rec.client
473
474/*
475 * At some point the server will run out of kernel storage for
476 * state structures. For FreeBSD5.2, this results in a panic
477 * kmem_map is full. It happens at well over 1000000 opens plus
478 * locks on a PIII-800 with 256Mbytes, so that is where I've set
479 * the limit. If your server panics due to too many opens/locks,
480 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
481 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
482 * increasing it.
483 */
484#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
485
486/*
487 * The type required differs with BSDen (just the second arg).
488 */
489void nfsrvd_rcv(struct socket *, void *, int);
490
491/*
492 * Macros for handling socket addresses. (Hopefully this makes the code
493 * more portable, since I've noticed some 'BSD don't have sockaddrs in
494 * mbufs any more.)
495 */
496#define NFSSOCKADDR(a, t) ((t)(a))
497#define NFSSOCKADDRALLOC(a) \
498 do { \
499 MALLOC((a), struct sockaddr *, sizeof (struct sockaddr), \
500 M_SONAME, M_WAITOK); \
501 NFSBZERO((a), sizeof (struct sockaddr)); \
502 } while (0)
503#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
504#define NFSSOCKADDRFREE(a) \
505 do { \
506 if (a) \
507 FREE((caddr_t)(a), M_SONAME); \
508 } while (0)
509
510/*
511 * These should be defined as a process or thread structure, as required
512 * for signal handling, etc.
513 */
514#define NFSNEWCRED(c) (crdup(c))
515#define NFSPROCCRED(p) ((p)->td_ucred)
516#define NFSFREECRED(c) (crfree(c))
517#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
518#define NFSPROCP(p) ((p)->td_proc)
519
520/*
521 * Define these so that cn_hash and its length is ignored.
522 */
523#define NFSCNHASHZERO(c)
524#define NFSCNHASH(c, v)
525#define NCHNAMLEN 9999999
526
527/*
528 * Define these to use the time of day clock.
529 */
530#define NFSGETTIME(t) (getmicrotime(t))
531#define NFSGETNANOTIME(t) (getnanotime(t))
532
533/*
534 * These macros are defined to initialize and set the timer routine.
535 */
536#define NFS_TIMERINIT \
537 newnfs_timer(NULL)
538
539/*
540 * Handle SMP stuff:
541 */
542#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
543#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
544#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
545#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
546#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
547#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
548#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
549#define NFSCACHEMUTEX extern struct mtx nfs_cache_mutex
550#define NFSCACHEMUTEXPTR (&nfs_cache_mutex)
551#define NFSLOCKCACHE() mtx_lock(&nfs_cache_mutex)
552#define NFSUNLOCKCACHE() mtx_unlock(&nfs_cache_mutex)
553#define NFSCACHELOCKREQUIRED() mtx_assert(&nfs_cache_mutex, MA_OWNED)
554#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
555#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
556#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
557#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
558#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
559#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
560#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
561#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
562#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
563#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
564#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
565#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
566#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
567#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
568#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
569#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
570#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
571#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
572#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
573#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
574#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
575#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
576#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
577#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
578#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
579#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
580#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
581#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
582#define NFSPROCLISTLOCK() sx_slock(&allproc_lock)
583#define NFSPROCLISTUNLOCK() sx_sunlock(&allproc_lock)
584#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
585#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
586
587/*
588 * Use these macros to initialize/free a mutex.
589 */
590#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
591#define NFSFREEMUTEX(m) mtx_destroy((m))
592
593int nfsmsleep(void *, void *, int, const char *, struct timespec *);
594
595/*
596 * And weird vm stuff in the nfs server.
597 */
598#define PDIRUNLOCK 0x0
599#define MAX_COMMIT_COUNT (1024 * 1024)
600
601/*
602 * Define these to handle the type of va_rdev.
603 */
604#define NFSMAKEDEV(m, n) makedev((m), (n))
605#define NFSMAJOR(d) major(d)
606#define NFSMINOR(d) minor(d)
607
608/*
609 * Define this to be the macro that returns the minimum size required
610 * for a directory entry.
611 */
612#define DIRENT_SIZE(dp) GENERIC_DIRSIZ(dp)
613
614/*
615 * The vnode tag for nfsv4root.
616 */
617#define VT_NFSV4ROOT "nfsv4root"
618
619/*
620 * Define whatever it takes to do a vn_rdwr().
621 */
622#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
623 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
624
625/*
626 * Macros for handling memory for different BSDen.
627 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
628 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
629 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
630 * NFSBZERO(cp, len) - set len bytes to 0x0
631 */
632#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
633#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
634#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
635#define NFSBZERO(s, l) bzero((s), (l))
636
637/*
638 * Some queue.h files don't have these dfined in them.
639 */
640#define LIST_END(head) NULL
641#define SLIST_END(head) NULL
642#define TAILQ_END(head) NULL
643
644/*
645 * This must be defined to be a global variable that increments once
646 * per second, but never stops or goes backwards, even when a "date"
647 * command changes the TOD clock. It is used for delta times for
648 * leases, etc.
649 */
650#define NFSD_MONOSEC time_uptime
651
652/*
653 * Declare the malloc types.
654 */
655MALLOC_DECLARE(M_NEWNFSRVCACHE);
656MALLOC_DECLARE(M_NEWNFSDCLIENT);
657MALLOC_DECLARE(M_NEWNFSDSTATE);
658MALLOC_DECLARE(M_NEWNFSDLOCK);
659MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
660MALLOC_DECLARE(M_NEWNFSSTRING);
661MALLOC_DECLARE(M_NEWNFSUSERGROUP);
662MALLOC_DECLARE(M_NEWNFSDREQ);
663MALLOC_DECLARE(M_NEWNFSFH);
664MALLOC_DECLARE(M_NEWNFSCLOWNER);
665MALLOC_DECLARE(M_NEWNFSCLOPEN);
666MALLOC_DECLARE(M_NEWNFSCLDELEG);
667MALLOC_DECLARE(M_NEWNFSCLCLIENT);
668MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
669MALLOC_DECLARE(M_NEWNFSCLLOCK);
670MALLOC_DECLARE(M_NEWNFSDIROFF);
671MALLOC_DECLARE(M_NEWNFSV4NODE);
672MALLOC_DECLARE(M_NEWNFSDIRECTIO);
673MALLOC_DECLARE(M_NEWNFSMNT);
674MALLOC_DECLARE(M_NEWNFSDROLLBACK);
675#define M_NFSRVCACHE M_NEWNFSRVCACHE
676#define M_NFSDCLIENT M_NEWNFSDCLIENT
677#define M_NFSDSTATE M_NEWNFSDSTATE
678#define M_NFSDLOCK M_NEWNFSDLOCK
679#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
680#define M_NFSSTRING M_NEWNFSSTRING
681#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
682#define M_NFSDREQ M_NEWNFSDREQ
683#define M_NFSFH M_NEWNFSFH
684#define M_NFSCLOWNER M_NEWNFSCLOWNER
685#define M_NFSCLOPEN M_NEWNFSCLOPEN
686#define M_NFSCLDELEG M_NEWNFSCLDELEG
687#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
688#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
689#define M_NFSCLLOCK M_NEWNFSCLLOCK
690#define M_NFSDIROFF M_NEWNFSDIROFF
691#define M_NFSV4NODE M_NEWNFSV4NODE
692#define M_NFSDIRECTIO M_NEWNFSDIRECTIO
693#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
694
695#define NFSINT_SIGMASK(set) \
696 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
697 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
698 SIGISMEMBER(set, SIGQUIT))
699
700/*
701 * Convert a quota block count to byte count.
702 */
703#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
704
705/*
706 * Define this as the largest file size supported. (It should probably
707 * be available via a VFS_xxx Op, but it isn't.
708 */
709#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
710
711/*
712 * Set this macro to index() or strchr(), whichever is supported.
713 */
714#define STRCHR(s, c) strchr((s), (c))
715
716/*
717 * Set the n_time in the client write rpc, as required.
718 */
719#define NFSWRITERPC_SETTIME(w, n, v4) \
720 do { \
721 if (w) { \
722 (n)->n_mtime = (n)->n_vattr.na_vattr.va_mtime; \
723 if (v4) \
724 (n)->n_change = (n)->n_vattr.na_vattr.va_filerev; \
725 } \
726 } while (0)
727
728/*
729 * Fake value, just to make the client work.
730 */
731#define NFS_LATTR_NOSHRINK 1
732
733/*
734 * Prototypes for functions where the arguments vary for different ports.
735 */
736int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *,
737 int, int);
738void newnfs_realign(struct mbuf **);
739
740/*
741 * If the port runs on an SMP box that can enforce Atomic ops with low
742 * overheads, define these as atomic increments/decrements. If not,
743 * don't worry about it, since these are used for stats that can be
744 * "out by one" without disastrous consequences.
745 */
746#define NFSINCRGLOBAL(a) ((a)++)
747
748/*
749 * Assorted funky stuff to make things work under Darwin8.
750 */
751/*
752 * These macros checks for a field in vattr being set.
753 */
754#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
755#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
756
757/*
758 * Manipulate mount flags.
759 */
760#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
761#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
762#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
763#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
764#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
765
766#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
767#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
768#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
769#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
770#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
771#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
772#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
773#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
774#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
775#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
776#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
777#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
778#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
779#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
780#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
781#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
782#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
783#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
784
785/*
786 * Gets the stats field out of the mount structure.
787 */
788#define vfs_statfs(m) (&((m)->mnt_stat))
789
790/*
791 * Set boottime.
792 */
793#define NFSSETBOOTTIME(b) ((b) = boottime)
794
795/*
796 * The size of directory blocks in the buffer cache.
797 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
798 */
799#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
800
801/*
802 * Define these macros to access mnt_flag fields.
803 */
804#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
805#endif /* _KERNEL */
806
807/*
808 * Define a structure similar to ufs_args for use in exporting the V4 root.
809 */
810struct nfsex_args {
811 char *fspec;
812 struct export_args export;
813};
814
815/*
816 * These export flags should be defined, but there are no bits left.
817 * Maybe a separate mnt_exflag field could be added or the mnt_flag
818 * field increased to 64 bits?
819 */
820#ifndef MNT_EXSTRICTACCESS
821#define MNT_EXSTRICTACCESS 0x0
822#endif
823#ifndef MNT_EXV4ONLY
824#define MNT_EXV4ONLY 0x0
825#endif
826
827#ifdef _KERNEL
828/*
829 * Define this to invalidate the attribute cache for the nfs node.
830 */
831#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
832
833/* Used for FreeBSD only */
834void nfsd_mntinit(void);
835
836/*
837 * Define these for vnode lock/unlock ops.
838 *
839 * These are good abstractions to macro out, so that they can be added to
840 * later, for debugging or stats, etc.
841 */
842#define NFSVOPLOCK(v, f) vn_lock((v), (f))
843#define NFSVOPUNLOCK(v, f) VOP_UNLOCK((v), (f))
844#define NFSVOPISLOCKED(v) VOP_ISLOCKED((v))
845
846/*
847 * Define ncl_hash().
848 */
849#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
850
851int newnfs_iosize(struct nfsmount *);
852
853#ifdef NFS_DEBUG
854
855extern int nfs_debug;
856#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
857#define NFS_DEBUG_WG 2 /* server write gathering */
858#define NFS_DEBUG_RC 4 /* server request caching */
859
860#define NFS_DPF(cat, args) \
861 do { \
862 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
863 } while (0)
864
865#else
866
867#define NFS_DPF(cat, args)
868
869#endif
870
871int newnfs_vncmpf(struct vnode *, void *);
872
873#ifndef NFS_MINDIRATTRTIMO
874#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
875#endif
876#ifndef NFS_MAXDIRATTRTIMO
877#define NFS_MAXDIRATTRTIMO 60
878#endif
879
880/*
881 * Nfs outstanding request list element
882 */
883struct nfsreq {
884 TAILQ_ENTRY(nfsreq) r_chain;
885 u_int32_t r_flags; /* flags on request, see below */
886 struct nfsmount *r_nmp; /* Client mnt ptr */
887 struct mtx r_mtx; /* Mutex lock for this structure */
888};
889
890#ifndef NFS_MAXBSIZE
891#define NFS_MAXBSIZE MAXBSIZE
892#endif
893
894/*
895 * This macro checks to see if issuing of delegations is allowed for this
896 * vnode.
897 */
898#ifdef VV_DISABLEDELEG
899#define NFSVNO_DELEGOK(v) \
900 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
901#else
902#define NFSVNO_DELEGOK(v) (1)
903#endif
904
905/*
906 * Define this as the flags argument for msleep() when catching signals
907 * while holding a resource that other threads would block for, such as
908 * a vnode lock.
909 */
910#define NFS_PCATCH (PCATCH | PBDRY)
911
912#endif /* _KERNEL */
913
914#endif /* _NFS_NFSPORT_H */
|