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/namei.h>
59#include <sys/proc.h>
60#include <sys/protosw.h>
61#include <sys/reboot.h>
62#include <sys/resourcevar.h>
63#include <sys/signalvar.h>
64#include <sys/socket.h>
65#include <sys/socketvar.h>
66#include <sys/stat.h>
67#include <sys/syslog.h>
68#include <sys/sysproto.h>
69#include <sys/time.h>
70#include <sys/uio.h>
71#include <sys/vnode.h>
72#include <sys/bio.h>
73#include <sys/buf.h>
74#include <sys/acl.h>
75#include <sys/module.h>
76#include <sys/sysent.h>
77#include <sys/syscall.h>
78#include <sys/priv.h>
79#include <sys/kthread.h>
80#include <sys/syscallsubr.h>
81#include <fs/fifofs/fifo.h>
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#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
297/*
298 * Stats structure
299 */
300struct ext_nfsstats {
301 int attrcache_hits;
302 int attrcache_misses;
303 int lookupcache_hits;
304 int lookupcache_misses;
305 int direofcache_hits;
306 int direofcache_misses;
307 int accesscache_hits;
308 int accesscache_misses;
309 int biocache_reads;
310 int read_bios;
311 int read_physios;
312 int biocache_writes;
313 int write_bios;
314 int write_physios;
315 int biocache_readlinks;
316 int readlink_bios;
317 int biocache_readdirs;
318 int readdir_bios;
319 int rpccnt[NFSV4_NPROCS];
320 int rpcretries;
321 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
322 int srvrpc_errs;
323 int srv_errs;
324 int rpcrequests;
325 int rpctimeouts;
326 int rpcunexpected;
327 int rpcinvalid;
328 int srvcache_inproghits;
329 int srvcache_idemdonehits;
330 int srvcache_nonidemdonehits;
331 int srvcache_misses;
332 int srvcache_tcppeak;
333 int srvcache_size;
334 int srvclients;
335 int srvopenowners;
336 int srvopens;
337 int srvlockowners;
338 int srvlocks;
339 int srvdelegates;
340 int cbrpccnt[NFSV4OP_CBNOPS];
341 int clopenowners;
342 int clopens;
343 int cllockowners;
344 int cllocks;
345 int cldelegates;
346 int cllocalopenowners;
347 int cllocalopens;
348 int cllocallockowners;
349 int cllocallocks;
350};
351
352#ifdef _KERNEL
353/*
354 * Define the ext_nfsstats as nfsstats for the kernel code.
355 */
356#define nfsstats ext_nfsstats
357
358/*
359 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
360 */
361#define NFS_NPROCS NFSV4_NPROCS
362
363#include <fs/nfs/nfskpiport.h>
364#include <fs/nfs/nfsdport.h>
365#include <fs/nfs/rpcv2.h>
366#include <fs/nfs/nfsproto.h>
367#include <fs/nfs/nfs.h>
368#include <fs/nfs/nfs_var.h>
369#include <fs/nfs/nfsm_subs.h>
370#include <fs/nfs/nfsrvcache.h>
371#include <fs/nfs/nfsrvstate.h>
372#include <fs/nfs/xdr_subs.h>
373#include <fs/nfs/nfscl.h>
374#include <fs/nfs/nfsclstate.h>
375#include <fs/nfsclient/nfsargs.h>
376#include <fs/nfsclient/nfsmount.h>
377
378/*
379 * Just to keep nfs_var.h happy.
380 */
381struct nfs_vattr {
382 int junk;
383};
384
385struct nfsvattr {
386 struct vattr na_vattr;
387 nfsattrbit_t na_suppattr;
388 u_int32_t na_mntonfileno;
389 u_int64_t na_filesid[2];
390};
391
392#define na_type na_vattr.va_type
393#define na_mode na_vattr.va_mode
394#define na_nlink na_vattr.va_nlink
395#define na_uid na_vattr.va_uid
396#define na_gid na_vattr.va_gid
397#define na_fsid na_vattr.va_fsid
398#define na_fileid na_vattr.va_fileid
399#define na_size na_vattr.va_size
400#define na_blocksize na_vattr.va_blocksize
401#define na_atime na_vattr.va_atime
402#define na_mtime na_vattr.va_mtime
403#define na_ctime na_vattr.va_ctime
404#define na_gen na_vattr.va_gen
405#define na_flags na_vattr.va_flags
406#define na_rdev na_vattr.va_rdev
407#define na_bytes na_vattr.va_bytes
408#define na_filerev na_vattr.va_filerev
409#define na_vaflags na_vattr.va_vaflags
410
411#include <fs/nfsclient/nfsnode.h>
412
413/*
414 * This is the header structure used for the lists, etc. (It has the
415 * above record in it.
416 */
417struct nfsrv_stablefirst {
418 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
419 time_t nsf_eograce; /* Time grace period ends */
420 time_t *nsf_bootvals; /* Previous boottime values */
421 struct file *nsf_fp; /* File table pointer */
422 u_char nsf_flags; /* NFSNSF_ flags */
423 struct nfsf_rec nsf_rec; /* and above first record */
424};
425#define nsf_lease nsf_rec.lease
426#define nsf_numboots nsf_rec.numboots
427
428/* NFSNSF_xxx flags */
429#define NFSNSF_UPDATEDONE 0x01
430#define NFSNSF_GRACEOVER 0x02
431#define NFSNSF_NEEDLOCK 0x04
432#define NFSNSF_EXPIREDCLIENT 0x08
433#define NFSNSF_NOOPENS 0x10
434#define NFSNSF_OK 0x20
435
436/*
437 * Maximum number of boot times allowed in record. Although there is
438 * really no need for a fixed upper bound, this serves as a sanity check
439 * for a corrupted file.
440 */
441#define NFSNSF_MAXNUMBOOTS 10000
442
443/*
444 * This structure defines the other records in the file. The
445 * nst_client array is actually the size of the client string name.
446 */
447struct nfst_rec {
448 u_int16_t len;
449 u_char flag;
450 u_char client[1];
451};
452/* and the values for flag */
453#define NFSNST_NEWSTATE 0x1
454#define NFSNST_REVOKE 0x2
455#define NFSNST_GOTSTATE 0x4
456
457/*
458 * This structure is linked onto nfsrv_stablefirst for the duration of
459 * reclaim.
460 */
461struct nfsrv_stable {
462 LIST_ENTRY(nfsrv_stable) nst_list;
463 struct nfsclient *nst_clp;
464 struct nfst_rec nst_rec;
465};
466#define nst_timestamp nst_rec.timestamp
467#define nst_len nst_rec.len
468#define nst_flag nst_rec.flag
469#define nst_client nst_rec.client
470
471/*
472 * At some point the server will run out of kernel storage for
473 * state structures. For FreeBSD5.2, this results in a panic
474 * kmem_map is full. It happens at well over 1000000 opens plus
475 * locks on a PIII-800 with 256Mbytes, so that is where I've set
476 * the limit. If your server panics due to too many opens/locks,
477 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
478 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
479 * increasing it.
480 */
481#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
482
483/*
484 * The type required differs with BSDen (just the second arg).
485 */
486void nfsrvd_rcv(struct socket *, void *, int);
487
488/*
489 * Macros for handling socket addresses. (Hopefully this makes the code
490 * more portable, since I've noticed some 'BSD don't have sockaddrs in
491 * mbufs any more.)
492 */
493#define NFSSOCKADDR(a, t) ((t)(a))
494#define NFSSOCKADDRALLOC(a) \
495 do { \
496 MALLOC((a), struct sockaddr *, sizeof (struct sockaddr), \
497 M_SONAME, M_WAITOK); \
498 NFSBZERO((a), sizeof (struct sockaddr)); \
499 } while (0)
500#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
501#define NFSSOCKADDRFREE(a) \
502 do { \
503 if (a) \
504 FREE((caddr_t)(a), M_SONAME); \
505 } while (0)
506
507/*
508 * These should be defined as a process or thread structure, as required
509 * for signal handling, etc.
510 */
511#define NFSNEWCRED(c) (crdup(c))
512#define NFSPROCCRED(p) ((p)->td_ucred)
513#define NFSFREECRED(c) (crfree(c))
514#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
515#define NFSPROCP(p) ((p)->td_proc)
516
517/*
518 * Define these so that cn_hash and its length is ignored.
519 */
520#define NFSCNHASHZERO(c)
521#define NFSCNHASH(c, v)
522#define NCHNAMLEN 9999999
523
524/*
525 * Define these to use the time of day clock.
526 */
527#define NFSGETTIME(t) (getmicrotime(t))
528#define NFSGETNANOTIME(t) (getnanotime(t))
529
530/*
531 * These macros are defined to initialize and set the timer routine.
532 */
533#define NFS_TIMERINIT \
534 newnfs_timer(NULL)
535
536/*
537 * Handle SMP stuff:
538 */
539#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
540#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
541#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
542#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
543#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
544#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
545#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
546#define NFSCACHEMUTEX extern struct mtx nfs_cache_mutex
547#define NFSCACHEMUTEXPTR (&nfs_cache_mutex)
548#define NFSLOCKCACHE() mtx_lock(&nfs_cache_mutex)
549#define NFSUNLOCKCACHE() mtx_unlock(&nfs_cache_mutex)
550#define NFSCACHELOCKREQUIRED() mtx_assert(&nfs_cache_mutex, MA_OWNED)
551#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
552#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
553#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
554#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
555#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
556#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
557#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
558#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
559#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
560#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
561#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
562#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
563#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
564#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
565#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
566#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
567#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
568#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
569#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
570#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
571#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
572#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
573#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
574#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
575#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
576#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
577#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
578#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
579#define NFSPROCLISTLOCK() sx_slock(&allproc_lock)
580#define NFSPROCLISTUNLOCK() sx_sunlock(&allproc_lock)
581#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
582#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
583
584/*
585 * Use these macros to initialize/free a mutex.
586 */
587#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
588#define NFSFREEMUTEX(m) mtx_destroy((m))
589
590int nfsmsleep(void *, void *, int, const char *, struct timespec *);
591
592/*
593 * And weird vm stuff in the nfs server.
594 */
595#define PDIRUNLOCK 0x0
596#define MAX_COMMIT_COUNT (1024 * 1024)
597
598/*
599 * These macros are called at the start and end of operations that
600 * might modify the underlying file system.
601 */
602#define NFS_STARTWRITE(v, m) vn_start_write((v), (m), V_WAIT)
603#define NFS_ENDWRITE(m) vn_finished_write(m)
604
605/*
606 * Define these to handle the type of va_rdev.
607 */
608#define NFSMAKEDEV(m, n) makedev((m), (n))
609#define NFSMAJOR(d) major(d)
610#define NFSMINOR(d) minor(d)
611
612/*
613 * Define this to be the macro that returns the minimum size required
614 * for a directory entry.
615 */
616#define DIRENT_SIZE(dp) GENERIC_DIRSIZ(dp)
617
618/*
619 * The vnode tag for nfsv4root.
620 */
621#define VT_NFSV4ROOT "nfsv4root"
622
623/*
624 * Define whatever it takes to do a vn_rdwr().
625 */
626#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
627 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
628
629/*
630 * Macros for handling memory for different BSDen.
631 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
632 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
633 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
634 * NFSBZERO(cp, len) - set len bytes to 0x0
635 */
636#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
637#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
638#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
639#define NFSBZERO(s, l) bzero((s), (l))
640
641/*
642 * Some queue.h files don't have these dfined in them.
643 */
644#define LIST_END(head) NULL
645#define SLIST_END(head) NULL
646#define TAILQ_END(head) NULL
647
648/*
649 * This must be defined to be a global variable the increments once
650 * per second, but never stops or goes backwards, even when a "date"
651 * command changes the tod clock. It is used for delta times for
652 * leases, etc.
653 */
654#define NFSD_MONOSEC time_uptime
655
656/*
657 * Declare the malloc types.
658 */
659MALLOC_DECLARE(M_NEWNFSRVCACHE);
660MALLOC_DECLARE(M_NEWNFSDCLIENT);
661MALLOC_DECLARE(M_NEWNFSDSTATE);
662MALLOC_DECLARE(M_NEWNFSDLOCK);
663MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
664MALLOC_DECLARE(M_NEWNFSSTRING);
665MALLOC_DECLARE(M_NEWNFSUSERGROUP);
666MALLOC_DECLARE(M_NEWNFSDREQ);
667MALLOC_DECLARE(M_NEWNFSFH);
668MALLOC_DECLARE(M_NEWNFSCLOWNER);
669MALLOC_DECLARE(M_NEWNFSCLOPEN);
670MALLOC_DECLARE(M_NEWNFSCLDELEG);
671MALLOC_DECLARE(M_NEWNFSCLCLIENT);
672MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
673MALLOC_DECLARE(M_NEWNFSCLLOCK);
674MALLOC_DECLARE(M_NEWNFSDIROFF);
675MALLOC_DECLARE(M_NEWNFSV4NODE);
676MALLOC_DECLARE(M_NEWNFSDIRECTIO);
677MALLOC_DECLARE(M_NEWNFSMNT);
678MALLOC_DECLARE(M_NEWNFSDROLLBACK);
679#define M_NFSRVCACHE M_NEWNFSRVCACHE
680#define M_NFSDCLIENT M_NEWNFSDCLIENT
681#define M_NFSDSTATE M_NEWNFSDSTATE
682#define M_NFSDLOCK M_NEWNFSDLOCK
683#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
684#define M_NFSSTRING M_NEWNFSSTRING
685#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
686#define M_NFSDREQ M_NEWNFSDREQ
687#define M_NFSFH M_NEWNFSFH
688#define M_NFSCLOWNER M_NEWNFSCLOWNER
689#define M_NFSCLOPEN M_NEWNFSCLOPEN
690#define M_NFSCLDELEG M_NEWNFSCLDELEG
691#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
692#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
693#define M_NFSCLLOCK M_NEWNFSCLLOCK
694#define M_NFSDIROFF M_NEWNFSDIROFF
695#define M_NFSV4NODE M_NEWNFSV4NODE
696#define M_NFSDIRECTIO M_NEWNFSDIRECTIO
697#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
698
699#define NFSINT_SIGMASK(set) \
700 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
701 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
702 SIGISMEMBER(set, SIGQUIT))
703
704/*
705 * Convert a quota block count to byte count.
706 */
707#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
708
709/*
710 * Define this as the largest file size supported. (It should probably
711 * be available via a VFS_xxx Op, but it isn't.
712 */
713#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
714
715/*
716 * Set this macro to index() or strchr(), whichever is supported.
717 */
718#define STRCHR(s, c) index((s), (c))
719
720/*
721 * Set the n_time in the client write rpc, as required.
722 */
723#define NFSWRITERPC_SETTIME(w, n, v4) \
724 do { \
725 if (w) { \
726 (n)->n_mtime = (n)->n_vattr.na_vattr.va_mtime; \
727 if (v4) \
728 (n)->n_change = (n)->n_vattr.na_vattr.va_filerev; \
729 } \
730 } while (0)
731
732/*
733 * Fake value, just to make the client work.
734 */
735#define NFS_LATTR_NOSHRINK 1
736
737/*
738 * Prototypes for functions where the arguments vary for different ports.
739 */
740int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *,
741 int, int);
742void newnfs_realign(struct mbuf **);
743
744/*
745 * If the port runs on an SMP box that can enforce Atomic ops with low
746 * overheads, define these as atomic increments/decrements. If not,
747 * don't worry about it, since these are used for stats that can be
748 * "out by one" without disastrous consequences.
749 */
750#define NFSINCRGLOBAL(a) ((a)++)
751
752/*
753 * Assorted funky stuff to make things work under Darwin8.
754 */
755/*
756 * These macros checks for a field in vattr being set.
757 */
758#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
759#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
760
761/*
762 * Manipulate mount flags.
763 */
764#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
765#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
766#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
767#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
768#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
769
770#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
771#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
772#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
773#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
774#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
775#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
776#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
777#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
778#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
779#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
780#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
781#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
782#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
783#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
784#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
785#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
786#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
787#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
788#ifdef NFS4_ACL_EXTATTR_NAME
789#define NFSHASNFS4ACL(m) nfs_supportsnfsv4acls(m)
790int nfs_supportsnfsv4acls(struct mount *);
791#else
792#define NFSHASNFS4ACL(m) 0
793#endif
794
795/*
796 * Gets the stats field out of the mount structure.
797 */
798#define vfs_statfs(m) (&((m)->mnt_stat))
799
800/*
801 * Set boottime.
802 */
803#define NFSSETBOOTTIME(b) ((b) = boottime)
804
805/*
806 * The size of directory blocks in the buffer cache.
807 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
808 */
809#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
810
811/*
812 * Define these macros to access mnt_flag fields.
813 */
814#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
815#endif /* _KERNEL */
816
817/*
818 * Define a structure similar to ufs_args for use in exporting the V4 root.
819 */
820struct nfsex_args {
821 char *fspec;
822 struct export_args export;
823};
824
825/*
826 * These export flags should be defined, but there are no bits left.
827 * Maybe a separate mnt_exflag field could be added or the mnt_flag
828 * field increased to 64 bits?
829 */
830#ifndef MNT_EXSTRICTACCESS
831#define MNT_EXSTRICTACCESS 0x0
832#endif
833#ifndef MNT_EXV4ONLY
834#define MNT_EXV4ONLY 0x0
835#endif
836
837#ifdef _KERNEL
838/*
839 * Define this to invalidate the attribute cache for the nfs node.
840 */
841#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
842
843/* Used for FreeBSD only */
844void nfsd_mntinit(void);
845
846/*
847 * Define these for vnode lock/unlock ops.
848 */
849#define NFSVOPLOCK(v, f, p) vn_lock((v), (f))
850#define NFSVOPUNLOCK(v, f, p) VOP_UNLOCK((v), (f))
851#define NFSVOPISLOCKED(v, p) VOP_ISLOCKED((v))
852
853/*
854 * Define ncl_hash().
855 */
856#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
857
858int newnfs_iosize(struct nfsmount *);
859
860#ifdef NFS_DEBUG
861
862extern int nfs_debug;
863#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
864#define NFS_DEBUG_WG 2 /* server write gathering */
865#define NFS_DEBUG_RC 4 /* server request caching */
866
867#define NFS_DPF(cat, args) \
868 do { \
869 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
870 } while (0)
871
872#else
873
874#define NFS_DPF(cat, args)
875
876#endif
877
878int newnfs_vncmpf(struct vnode *, void *);
879
880#ifndef NFS_MINDIRATTRTIMO
881#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
882#endif
883#ifndef NFS_MAXDIRATTRTIMO
884#define NFS_MAXDIRATTRTIMO 60
885#endif
886
887/*
888 * Nfs outstanding request list element
889 */
890struct nfsreq {
891 TAILQ_ENTRY(nfsreq) r_chain;
892 u_int32_t r_flags; /* flags on request, see below */
893 struct nfsmount *r_nmp; /* Client mnt ptr */
894 struct mtx r_mtx; /* Mutex lock for this structure */
895};
896
897#ifndef NFS_MAXBSIZE
898#define NFS_MAXBSIZE MAXBSIZE
899#endif
900
901/*
902 * This macro checks to see if issuing of delegations is allowed for this
903 * vnode.
904 */
905#ifdef VV_DISABLEDELEG
906#define NFSVNO_DELEGOK(v) \
907 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
908#else
909#define NFSVNO_DELEGOK(v) (1)
910#endif
911
912/*
913 * Define this as the flags argument for msleep() when catching signals
914 * while holding a resource that other threads would block for, such as
915 * a vnode lock.
916 */
917#define NFS_PCATCH (PCATCH | PBDRY)
918
919#endif /* _KERNEL */
920
| 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/namei.h>
59#include <sys/proc.h>
60#include <sys/protosw.h>
61#include <sys/reboot.h>
62#include <sys/resourcevar.h>
63#include <sys/signalvar.h>
64#include <sys/socket.h>
65#include <sys/socketvar.h>
66#include <sys/stat.h>
67#include <sys/syslog.h>
68#include <sys/sysproto.h>
69#include <sys/time.h>
70#include <sys/uio.h>
71#include <sys/vnode.h>
72#include <sys/bio.h>
73#include <sys/buf.h>
74#include <sys/acl.h>
75#include <sys/module.h>
76#include <sys/sysent.h>
77#include <sys/syscall.h>
78#include <sys/priv.h>
79#include <sys/kthread.h>
80#include <sys/syscallsubr.h>
81#include <fs/fifofs/fifo.h>
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#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
297/*
298 * Stats structure
299 */
300struct ext_nfsstats {
301 int attrcache_hits;
302 int attrcache_misses;
303 int lookupcache_hits;
304 int lookupcache_misses;
305 int direofcache_hits;
306 int direofcache_misses;
307 int accesscache_hits;
308 int accesscache_misses;
309 int biocache_reads;
310 int read_bios;
311 int read_physios;
312 int biocache_writes;
313 int write_bios;
314 int write_physios;
315 int biocache_readlinks;
316 int readlink_bios;
317 int biocache_readdirs;
318 int readdir_bios;
319 int rpccnt[NFSV4_NPROCS];
320 int rpcretries;
321 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
322 int srvrpc_errs;
323 int srv_errs;
324 int rpcrequests;
325 int rpctimeouts;
326 int rpcunexpected;
327 int rpcinvalid;
328 int srvcache_inproghits;
329 int srvcache_idemdonehits;
330 int srvcache_nonidemdonehits;
331 int srvcache_misses;
332 int srvcache_tcppeak;
333 int srvcache_size;
334 int srvclients;
335 int srvopenowners;
336 int srvopens;
337 int srvlockowners;
338 int srvlocks;
339 int srvdelegates;
340 int cbrpccnt[NFSV4OP_CBNOPS];
341 int clopenowners;
342 int clopens;
343 int cllockowners;
344 int cllocks;
345 int cldelegates;
346 int cllocalopenowners;
347 int cllocalopens;
348 int cllocallockowners;
349 int cllocallocks;
350};
351
352#ifdef _KERNEL
353/*
354 * Define the ext_nfsstats as nfsstats for the kernel code.
355 */
356#define nfsstats ext_nfsstats
357
358/*
359 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
360 */
361#define NFS_NPROCS NFSV4_NPROCS
362
363#include <fs/nfs/nfskpiport.h>
364#include <fs/nfs/nfsdport.h>
365#include <fs/nfs/rpcv2.h>
366#include <fs/nfs/nfsproto.h>
367#include <fs/nfs/nfs.h>
368#include <fs/nfs/nfs_var.h>
369#include <fs/nfs/nfsm_subs.h>
370#include <fs/nfs/nfsrvcache.h>
371#include <fs/nfs/nfsrvstate.h>
372#include <fs/nfs/xdr_subs.h>
373#include <fs/nfs/nfscl.h>
374#include <fs/nfs/nfsclstate.h>
375#include <fs/nfsclient/nfsargs.h>
376#include <fs/nfsclient/nfsmount.h>
377
378/*
379 * Just to keep nfs_var.h happy.
380 */
381struct nfs_vattr {
382 int junk;
383};
384
385struct nfsvattr {
386 struct vattr na_vattr;
387 nfsattrbit_t na_suppattr;
388 u_int32_t na_mntonfileno;
389 u_int64_t na_filesid[2];
390};
391
392#define na_type na_vattr.va_type
393#define na_mode na_vattr.va_mode
394#define na_nlink na_vattr.va_nlink
395#define na_uid na_vattr.va_uid
396#define na_gid na_vattr.va_gid
397#define na_fsid na_vattr.va_fsid
398#define na_fileid na_vattr.va_fileid
399#define na_size na_vattr.va_size
400#define na_blocksize na_vattr.va_blocksize
401#define na_atime na_vattr.va_atime
402#define na_mtime na_vattr.va_mtime
403#define na_ctime na_vattr.va_ctime
404#define na_gen na_vattr.va_gen
405#define na_flags na_vattr.va_flags
406#define na_rdev na_vattr.va_rdev
407#define na_bytes na_vattr.va_bytes
408#define na_filerev na_vattr.va_filerev
409#define na_vaflags na_vattr.va_vaflags
410
411#include <fs/nfsclient/nfsnode.h>
412
413/*
414 * This is the header structure used for the lists, etc. (It has the
415 * above record in it.
416 */
417struct nfsrv_stablefirst {
418 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
419 time_t nsf_eograce; /* Time grace period ends */
420 time_t *nsf_bootvals; /* Previous boottime values */
421 struct file *nsf_fp; /* File table pointer */
422 u_char nsf_flags; /* NFSNSF_ flags */
423 struct nfsf_rec nsf_rec; /* and above first record */
424};
425#define nsf_lease nsf_rec.lease
426#define nsf_numboots nsf_rec.numboots
427
428/* NFSNSF_xxx flags */
429#define NFSNSF_UPDATEDONE 0x01
430#define NFSNSF_GRACEOVER 0x02
431#define NFSNSF_NEEDLOCK 0x04
432#define NFSNSF_EXPIREDCLIENT 0x08
433#define NFSNSF_NOOPENS 0x10
434#define NFSNSF_OK 0x20
435
436/*
437 * Maximum number of boot times allowed in record. Although there is
438 * really no need for a fixed upper bound, this serves as a sanity check
439 * for a corrupted file.
440 */
441#define NFSNSF_MAXNUMBOOTS 10000
442
443/*
444 * This structure defines the other records in the file. The
445 * nst_client array is actually the size of the client string name.
446 */
447struct nfst_rec {
448 u_int16_t len;
449 u_char flag;
450 u_char client[1];
451};
452/* and the values for flag */
453#define NFSNST_NEWSTATE 0x1
454#define NFSNST_REVOKE 0x2
455#define NFSNST_GOTSTATE 0x4
456
457/*
458 * This structure is linked onto nfsrv_stablefirst for the duration of
459 * reclaim.
460 */
461struct nfsrv_stable {
462 LIST_ENTRY(nfsrv_stable) nst_list;
463 struct nfsclient *nst_clp;
464 struct nfst_rec nst_rec;
465};
466#define nst_timestamp nst_rec.timestamp
467#define nst_len nst_rec.len
468#define nst_flag nst_rec.flag
469#define nst_client nst_rec.client
470
471/*
472 * At some point the server will run out of kernel storage for
473 * state structures. For FreeBSD5.2, this results in a panic
474 * kmem_map is full. It happens at well over 1000000 opens plus
475 * locks on a PIII-800 with 256Mbytes, so that is where I've set
476 * the limit. If your server panics due to too many opens/locks,
477 * decrease the size of NFSRV_V4STATELIMIT. If you find the server
478 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
479 * increasing it.
480 */
481#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
482
483/*
484 * The type required differs with BSDen (just the second arg).
485 */
486void nfsrvd_rcv(struct socket *, void *, int);
487
488/*
489 * Macros for handling socket addresses. (Hopefully this makes the code
490 * more portable, since I've noticed some 'BSD don't have sockaddrs in
491 * mbufs any more.)
492 */
493#define NFSSOCKADDR(a, t) ((t)(a))
494#define NFSSOCKADDRALLOC(a) \
495 do { \
496 MALLOC((a), struct sockaddr *, sizeof (struct sockaddr), \
497 M_SONAME, M_WAITOK); \
498 NFSBZERO((a), sizeof (struct sockaddr)); \
499 } while (0)
500#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
501#define NFSSOCKADDRFREE(a) \
502 do { \
503 if (a) \
504 FREE((caddr_t)(a), M_SONAME); \
505 } while (0)
506
507/*
508 * These should be defined as a process or thread structure, as required
509 * for signal handling, etc.
510 */
511#define NFSNEWCRED(c) (crdup(c))
512#define NFSPROCCRED(p) ((p)->td_ucred)
513#define NFSFREECRED(c) (crfree(c))
514#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
515#define NFSPROCP(p) ((p)->td_proc)
516
517/*
518 * Define these so that cn_hash and its length is ignored.
519 */
520#define NFSCNHASHZERO(c)
521#define NFSCNHASH(c, v)
522#define NCHNAMLEN 9999999
523
524/*
525 * Define these to use the time of day clock.
526 */
527#define NFSGETTIME(t) (getmicrotime(t))
528#define NFSGETNANOTIME(t) (getnanotime(t))
529
530/*
531 * These macros are defined to initialize and set the timer routine.
532 */
533#define NFS_TIMERINIT \
534 newnfs_timer(NULL)
535
536/*
537 * Handle SMP stuff:
538 */
539#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
540#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
541#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
542#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
543#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
544#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
545#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
546#define NFSCACHEMUTEX extern struct mtx nfs_cache_mutex
547#define NFSCACHEMUTEXPTR (&nfs_cache_mutex)
548#define NFSLOCKCACHE() mtx_lock(&nfs_cache_mutex)
549#define NFSUNLOCKCACHE() mtx_unlock(&nfs_cache_mutex)
550#define NFSCACHELOCKREQUIRED() mtx_assert(&nfs_cache_mutex, MA_OWNED)
551#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
552#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
553#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
554#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
555#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
556#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
557#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
558#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
559#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
560#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
561#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
562#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
563#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
564#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
565#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
566#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
567#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
568#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
569#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
570#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
571#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
572#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
573#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
574#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
575#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
576#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
577#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
578#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
579#define NFSPROCLISTLOCK() sx_slock(&allproc_lock)
580#define NFSPROCLISTUNLOCK() sx_sunlock(&allproc_lock)
581#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
582#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
583
584/*
585 * Use these macros to initialize/free a mutex.
586 */
587#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
588#define NFSFREEMUTEX(m) mtx_destroy((m))
589
590int nfsmsleep(void *, void *, int, const char *, struct timespec *);
591
592/*
593 * And weird vm stuff in the nfs server.
594 */
595#define PDIRUNLOCK 0x0
596#define MAX_COMMIT_COUNT (1024 * 1024)
597
598/*
599 * These macros are called at the start and end of operations that
600 * might modify the underlying file system.
601 */
602#define NFS_STARTWRITE(v, m) vn_start_write((v), (m), V_WAIT)
603#define NFS_ENDWRITE(m) vn_finished_write(m)
604
605/*
606 * Define these to handle the type of va_rdev.
607 */
608#define NFSMAKEDEV(m, n) makedev((m), (n))
609#define NFSMAJOR(d) major(d)
610#define NFSMINOR(d) minor(d)
611
612/*
613 * Define this to be the macro that returns the minimum size required
614 * for a directory entry.
615 */
616#define DIRENT_SIZE(dp) GENERIC_DIRSIZ(dp)
617
618/*
619 * The vnode tag for nfsv4root.
620 */
621#define VT_NFSV4ROOT "nfsv4root"
622
623/*
624 * Define whatever it takes to do a vn_rdwr().
625 */
626#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
627 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
628
629/*
630 * Macros for handling memory for different BSDen.
631 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
632 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
633 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
634 * NFSBZERO(cp, len) - set len bytes to 0x0
635 */
636#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
637#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
638#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
639#define NFSBZERO(s, l) bzero((s), (l))
640
641/*
642 * Some queue.h files don't have these dfined in them.
643 */
644#define LIST_END(head) NULL
645#define SLIST_END(head) NULL
646#define TAILQ_END(head) NULL
647
648/*
649 * This must be defined to be a global variable the increments once
650 * per second, but never stops or goes backwards, even when a "date"
651 * command changes the tod clock. It is used for delta times for
652 * leases, etc.
653 */
654#define NFSD_MONOSEC time_uptime
655
656/*
657 * Declare the malloc types.
658 */
659MALLOC_DECLARE(M_NEWNFSRVCACHE);
660MALLOC_DECLARE(M_NEWNFSDCLIENT);
661MALLOC_DECLARE(M_NEWNFSDSTATE);
662MALLOC_DECLARE(M_NEWNFSDLOCK);
663MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
664MALLOC_DECLARE(M_NEWNFSSTRING);
665MALLOC_DECLARE(M_NEWNFSUSERGROUP);
666MALLOC_DECLARE(M_NEWNFSDREQ);
667MALLOC_DECLARE(M_NEWNFSFH);
668MALLOC_DECLARE(M_NEWNFSCLOWNER);
669MALLOC_DECLARE(M_NEWNFSCLOPEN);
670MALLOC_DECLARE(M_NEWNFSCLDELEG);
671MALLOC_DECLARE(M_NEWNFSCLCLIENT);
672MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
673MALLOC_DECLARE(M_NEWNFSCLLOCK);
674MALLOC_DECLARE(M_NEWNFSDIROFF);
675MALLOC_DECLARE(M_NEWNFSV4NODE);
676MALLOC_DECLARE(M_NEWNFSDIRECTIO);
677MALLOC_DECLARE(M_NEWNFSMNT);
678MALLOC_DECLARE(M_NEWNFSDROLLBACK);
679#define M_NFSRVCACHE M_NEWNFSRVCACHE
680#define M_NFSDCLIENT M_NEWNFSDCLIENT
681#define M_NFSDSTATE M_NEWNFSDSTATE
682#define M_NFSDLOCK M_NEWNFSDLOCK
683#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
684#define M_NFSSTRING M_NEWNFSSTRING
685#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
686#define M_NFSDREQ M_NEWNFSDREQ
687#define M_NFSFH M_NEWNFSFH
688#define M_NFSCLOWNER M_NEWNFSCLOWNER
689#define M_NFSCLOPEN M_NEWNFSCLOPEN
690#define M_NFSCLDELEG M_NEWNFSCLDELEG
691#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
692#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
693#define M_NFSCLLOCK M_NEWNFSCLLOCK
694#define M_NFSDIROFF M_NEWNFSDIROFF
695#define M_NFSV4NODE M_NEWNFSV4NODE
696#define M_NFSDIRECTIO M_NEWNFSDIRECTIO
697#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
698
699#define NFSINT_SIGMASK(set) \
700 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
701 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
702 SIGISMEMBER(set, SIGQUIT))
703
704/*
705 * Convert a quota block count to byte count.
706 */
707#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
708
709/*
710 * Define this as the largest file size supported. (It should probably
711 * be available via a VFS_xxx Op, but it isn't.
712 */
713#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
714
715/*
716 * Set this macro to index() or strchr(), whichever is supported.
717 */
718#define STRCHR(s, c) index((s), (c))
719
720/*
721 * Set the n_time in the client write rpc, as required.
722 */
723#define NFSWRITERPC_SETTIME(w, n, v4) \
724 do { \
725 if (w) { \
726 (n)->n_mtime = (n)->n_vattr.na_vattr.va_mtime; \
727 if (v4) \
728 (n)->n_change = (n)->n_vattr.na_vattr.va_filerev; \
729 } \
730 } while (0)
731
732/*
733 * Fake value, just to make the client work.
734 */
735#define NFS_LATTR_NOSHRINK 1
736
737/*
738 * Prototypes for functions where the arguments vary for different ports.
739 */
740int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *,
741 int, int);
742void newnfs_realign(struct mbuf **);
743
744/*
745 * If the port runs on an SMP box that can enforce Atomic ops with low
746 * overheads, define these as atomic increments/decrements. If not,
747 * don't worry about it, since these are used for stats that can be
748 * "out by one" without disastrous consequences.
749 */
750#define NFSINCRGLOBAL(a) ((a)++)
751
752/*
753 * Assorted funky stuff to make things work under Darwin8.
754 */
755/*
756 * These macros checks for a field in vattr being set.
757 */
758#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
759#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
760
761/*
762 * Manipulate mount flags.
763 */
764#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
765#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
766#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
767#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
768#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
769
770#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
771#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
772#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
773#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
774#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
775#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
776#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
777#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
778#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
779#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
780#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
781#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
782#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
783#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
784#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
785#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
786#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
787#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
788#ifdef NFS4_ACL_EXTATTR_NAME
789#define NFSHASNFS4ACL(m) nfs_supportsnfsv4acls(m)
790int nfs_supportsnfsv4acls(struct mount *);
791#else
792#define NFSHASNFS4ACL(m) 0
793#endif
794
795/*
796 * Gets the stats field out of the mount structure.
797 */
798#define vfs_statfs(m) (&((m)->mnt_stat))
799
800/*
801 * Set boottime.
802 */
803#define NFSSETBOOTTIME(b) ((b) = boottime)
804
805/*
806 * The size of directory blocks in the buffer cache.
807 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
808 */
809#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
810
811/*
812 * Define these macros to access mnt_flag fields.
813 */
814#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
815#endif /* _KERNEL */
816
817/*
818 * Define a structure similar to ufs_args for use in exporting the V4 root.
819 */
820struct nfsex_args {
821 char *fspec;
822 struct export_args export;
823};
824
825/*
826 * These export flags should be defined, but there are no bits left.
827 * Maybe a separate mnt_exflag field could be added or the mnt_flag
828 * field increased to 64 bits?
829 */
830#ifndef MNT_EXSTRICTACCESS
831#define MNT_EXSTRICTACCESS 0x0
832#endif
833#ifndef MNT_EXV4ONLY
834#define MNT_EXV4ONLY 0x0
835#endif
836
837#ifdef _KERNEL
838/*
839 * Define this to invalidate the attribute cache for the nfs node.
840 */
841#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
842
843/* Used for FreeBSD only */
844void nfsd_mntinit(void);
845
846/*
847 * Define these for vnode lock/unlock ops.
848 */
849#define NFSVOPLOCK(v, f, p) vn_lock((v), (f))
850#define NFSVOPUNLOCK(v, f, p) VOP_UNLOCK((v), (f))
851#define NFSVOPISLOCKED(v, p) VOP_ISLOCKED((v))
852
853/*
854 * Define ncl_hash().
855 */
856#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
857
858int newnfs_iosize(struct nfsmount *);
859
860#ifdef NFS_DEBUG
861
862extern int nfs_debug;
863#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
864#define NFS_DEBUG_WG 2 /* server write gathering */
865#define NFS_DEBUG_RC 4 /* server request caching */
866
867#define NFS_DPF(cat, args) \
868 do { \
869 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
870 } while (0)
871
872#else
873
874#define NFS_DPF(cat, args)
875
876#endif
877
878int newnfs_vncmpf(struct vnode *, void *);
879
880#ifndef NFS_MINDIRATTRTIMO
881#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
882#endif
883#ifndef NFS_MAXDIRATTRTIMO
884#define NFS_MAXDIRATTRTIMO 60
885#endif
886
887/*
888 * Nfs outstanding request list element
889 */
890struct nfsreq {
891 TAILQ_ENTRY(nfsreq) r_chain;
892 u_int32_t r_flags; /* flags on request, see below */
893 struct nfsmount *r_nmp; /* Client mnt ptr */
894 struct mtx r_mtx; /* Mutex lock for this structure */
895};
896
897#ifndef NFS_MAXBSIZE
898#define NFS_MAXBSIZE MAXBSIZE
899#endif
900
901/*
902 * This macro checks to see if issuing of delegations is allowed for this
903 * vnode.
904 */
905#ifdef VV_DISABLEDELEG
906#define NFSVNO_DELEGOK(v) \
907 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
908#else
909#define NFSVNO_DELEGOK(v) (1)
910#endif
911
912/*
913 * Define this as the flags argument for msleep() when catching signals
914 * while holding a resource that other threads would block for, such as
915 * a vnode lock.
916 */
917#define NFS_PCATCH (PCATCH | PBDRY)
918
919#endif /* _KERNEL */
920
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