1/*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
| 1/*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
|
43#define NFS_HZ (hz / nfscl_ticks) /* Ticks/sec */
44#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
45#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
46#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
47#define NFS_TCPTIMEO 300 /* TCP timeout */
48#define NFS_MAXRCVTIMEO 60 /* 1 minute in seconds */
49#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
50#define NFS_MAXREXMIT 100 /* Stop counting after this many */
51#define NFSV4_CALLBACKTIMEO (2 * NFS_HZ) /* Timeout in ticks */
52#define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */
53#define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */
54#define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */
55 /* to gssd or nfsuserd */
56#define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */
57#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
58#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
59#define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */
60#define NFS_MAXGRPS 16 /* Max. size of groups list */
61#define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */
62#ifndef NFS_REMOVETIMEO
63#define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */
64#endif
65#ifndef NFS_MINATTRTIMO
66#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
67#endif
68#ifndef NFS_MAXATTRTIMO
69#define NFS_MAXATTRTIMO 60
70#endif
71#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
72#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
73#define NFS_READDIRSIZE 8192 /* Def. readdir size */
74#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
75#define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */
76#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */
77#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
78#ifndef NFSRV_LEASE
79#define NFSRV_LEASE 120 /* Lease time in seconds for V4 */
80#endif /* assigned to nfsrv_lease */
81#ifndef NFSRV_STALELEASE
82#define NFSRV_STALELEASE (5 * nfsrv_lease)
83#endif
84#ifndef NFSRV_MOULDYLEASE
85#define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */
86#endif
87#ifndef NFSCLIENTHASHSIZE
88#define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */
89#endif
90#ifndef NFSLOCKHASHSIZE
91#define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */
92#endif
93#define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */
94#ifndef NFSUSERHASHSIZE
95#define NFSUSERHASHSIZE 30 /* Size of user id hash table */
96#endif
97#ifndef NFSGROUPHASHSIZE
98#define NFSGROUPHASHSIZE 5 /* Size of group id hash table */
99#endif
100#ifndef NFSCLDELEGHIGHWATER
101#define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */
102#endif
103#ifndef NFSNOOPEN /* Inactive open owner (sec) */
104#define NFSNOOPEN 120
105#endif
106#define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */
107#define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */
108#ifndef NFSRVCACHE_UDPTIMEOUT
109#define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */
110#endif
111#ifndef NFSRVCACHE_UDPHIGHWATER
112#define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */
113#endif
114#ifndef NFSRVCACHE_TCPTIMEOUT
115#define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */
116#endif
117#ifndef NFSRVCACHE_FLOODLEVEL
118#define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */
119#endif
120#ifndef NFSRV_CLIENTHIGHWATER
121#define NFSRV_CLIENTHIGHWATER 1000
122#endif
123#ifndef NFSRV_MAXDUMPLIST
124#define NFSRV_MAXDUMPLIST 10000
125#endif
126#ifndef NFS_ACCESSCACHESIZE
127#define NFS_ACCESSCACHESIZE 8
128#endif
129#define NFSV4_CBPORT 7745 /* Callback port for testing */
130
131/*
132 * This macro defines the high water mark for issuing V4 delegations.
133 * (It is currently set at a conservative 20% of NFSRV_V4STATELIMIT. This
134 * may want to increase when clients can make more effective use of
135 * delegations.)
136 */
137#define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > NFSRV_V4STATELIMIT)
138
139#define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */
140
141/*
142 * Oddballs
143 */
144#define NFS_CMPFH(n, f, s) \
145 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s)))
146#define NFSRV_CMPFH(nf, ns, f, s) \
147 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s)))
148#define NFS_CMPTIME(t1, t2) \
149 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec)
150#define NFS_SETTIME(t) do { \
151 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0)
152#define NFS_SRVMAXDATA(n) \
153 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \
154 NFS_MAXDATA : NFS_V2MAXDATA)
155#define NFS64BITSSET 0xffffffffffffffffull
156#define NFS64BITSMINUS1 0xfffffffffffffffeull
157
158/*
159 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs
160 * and nfsloaduser should ever try and use it.
161 */
162struct nfsd_addsock_args {
163 int sock; /* Socket to serve */
164 caddr_t name; /* Client addr for connection based sockets */
165 int namelen; /* Length of name */
166};
167
168/*
169 * nfsd argument for new krpc.
170 */
171struct nfsd_nfsd_args {
172 const char *principal; /* GSS-API service principal name */
173 int minthreads; /* minimum service thread count */
174 int maxthreads; /* maximum service thread count */
175};
176
177/*
178 * Arguments for use by the callback daemon.
179 */
180struct nfsd_nfscbd_args {
181 const char *principal; /* GSS-API service principal name */
182};
183
184struct nfscbd_args {
185 int sock; /* Socket to serve */
186 caddr_t name; /* Client addr for connection based sockets */
187 int namelen; /* Length of name */
188 u_short port; /* Port# for callbacks */
189};
190
191struct nfsd_idargs {
192 int nid_flag; /* Flags (see below) */
193 uid_t nid_uid; /* user/group id */
194 gid_t nid_gid;
195 int nid_usermax; /* Upper bound on user name cache */
196 int nid_usertimeout;/* User name timeout (minutes) */
197 u_char *nid_name; /* Name */
198 int nid_namelen; /* and its length */
199};
200
201struct nfsd_clid {
202 int nclid_idlen; /* Length of client id */
203 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */
204};
205
206struct nfsd_dumplist {
207 int ndl_size; /* Number of elements */
208 void *ndl_list; /* and the list of elements */
209};
210
211struct nfsd_dumpclients {
212 u_int32_t ndcl_flags; /* LCL_xxx flags */
213 u_int32_t ndcl_nopenowners; /* Number of openowners */
214 u_int32_t ndcl_nopens; /* and opens */
215 u_int32_t ndcl_nlockowners; /* and of lockowners */
216 u_int32_t ndcl_nlocks; /* and of locks */
217 u_int32_t ndcl_ndelegs; /* and of delegations */
218 u_int32_t ndcl_nolddelegs; /* and old delegations */
219 sa_family_t ndcl_addrfam; /* Callback address */
220 union {
221 struct in_addr sin_addr;
222 struct in6_addr sin6_addr;
223 } ndcl_cbaddr;
224 struct nfsd_clid ndcl_clid; /* and client id */
225};
226
227struct nfsd_dumplocklist {
228 char *ndllck_fname; /* File Name */
229 int ndllck_size; /* Number of elements */
230 void *ndllck_list; /* and the list of elements */
231};
232
233struct nfsd_dumplocks {
234 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */
235 nfsv4stateid_t ndlck_stateid; /* stateid */
236 u_int64_t ndlck_first; /* lock byte range */
237 u_int64_t ndlck_end;
238 struct nfsd_clid ndlck_owner; /* Owner of open/lock */
239 sa_family_t ndlck_addrfam; /* Callback address */
240 union {
241 struct in_addr sin_addr;
242 struct in6_addr sin6_addr;
243 } ndlck_cbaddr;
244 struct nfsd_clid ndlck_clid; /* and client id */
245};
246
247/*
248 * Structure for referral information.
249 */
250struct nfsreferral {
251 u_char *nfr_srvlist; /* List of servers */
252 int nfr_srvcnt; /* number of servers */
253 vnode_t nfr_vp; /* vnode for referral */
254 u_int32_t nfr_dfileno; /* assigned dir inode# */
255};
256
257/*
258 * Flags for lc_flags and opsflags for nfsrv_getclient().
259 */
260#define LCL_NEEDSCONFIRM 0x00000001
261#define LCL_DONTCLEAN 0x00000002
262#define LCL_WAKEUPWANTED 0x00000004
263#define LCL_TCPCALLBACK 0x00000008
264#define LCL_CALLBACKSON 0x00000010
265#define LCL_INDEXNOTOK 0x00000020
266#define LCL_STAMPEDSTABLE 0x00000040
267#define LCL_EXPIREIT 0x00000080
268#define LCL_CBDOWN 0x00000100
269#define LCL_KERBV 0x00000400
270#define LCL_NAME 0x00000800
271#define LCL_NEEDSCBNULL 0x00001000
272#define LCL_GSSINTEGRITY 0x00002000
273#define LCL_GSSPRIVACY 0x00004000
274#define LCL_ADMINREVOKED 0x00008000
275
276#define LCL_GSS LCL_KERBV /* Or of all mechs */
277
278/*
279 * Bits for flags in nfslock and nfsstate.
280 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as
281 * below, in the correct order, so the shifts work for tests.
282 */
283#define NFSLCK_READACCESS 0x00000001
284#define NFSLCK_WRITEACCESS 0x00000002
285#define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS)
286#define NFSLCK_SHIFT 2
287#define NFSLCK_READDENY 0x00000004
288#define NFSLCK_WRITEDENY 0x00000008
289#define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY)
290#define NFSLCK_SHAREBITS \
291 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY)
292#define NFSLCK_LOCKSHIFT 4
293#define NFSLCK_READ 0x00000010
294#define NFSLCK_WRITE 0x00000020
295#define NFSLCK_BLOCKING 0x00000040
296#define NFSLCK_RECLAIM 0x00000080
297#define NFSLCK_OPENTOLOCK 0x00000100
298#define NFSLCK_TEST 0x00000200
299#define NFSLCK_LOCK 0x00000400
300#define NFSLCK_UNLOCK 0x00000800
301#define NFSLCK_OPEN 0x00001000
302#define NFSLCK_CLOSE 0x00002000
303#define NFSLCK_CHECK 0x00004000
304#define NFSLCK_RELEASE 0x00008000
305#define NFSLCK_NEEDSCONFIRM 0x00010000
306#define NFSLCK_CONFIRM 0x00020000
307#define NFSLCK_DOWNGRADE 0x00040000
308#define NFSLCK_DELEGREAD 0x00080000
309#define NFSLCK_DELEGWRITE 0x00100000
310#define NFSLCK_DELEGCUR 0x00200000
311#define NFSLCK_DELEGPREV 0x00400000
312#define NFSLCK_OLDDELEG 0x00800000
313#define NFSLCK_DELEGRECALL 0x01000000
314#define NFSLCK_SETATTR 0x02000000
315#define NFSLCK_DELEGPURGE 0x04000000
316#define NFSLCK_DELEGRETURN 0x08000000
317
318/* And bits for nid_flag */
319#define NFSID_INITIALIZE 0x0001
320#define NFSID_ADDUID 0x0002
321#define NFSID_DELUID 0x0004
322#define NFSID_ADDUSERNAME 0x0008
323#define NFSID_DELUSERNAME 0x0010
324#define NFSID_ADDGID 0x0020
325#define NFSID_DELGID 0x0040
326#define NFSID_ADDGROUPNAME 0x0080
327#define NFSID_DELGROUPNAME 0x0100
328
329/*
330 * fs.nfs sysctl(3) identifiers
331 */
332#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
333
334#define FS_NFS_NAMES { \
335 { 0, 0 }, \
336 { "nfsstats", CTLTYPE_STRUCT }, \
337}
338
339/*
340 * Here is the definition of the attribute bits array and macros that
341 * manipulate it.
342 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!!
343 * It is (NFSATTRBIT_MAX + 31) / 32.
344 */
345#define NFSATTRBIT_MAXWORDS 2
346
347typedef struct {
348 u_int32_t bits[NFSATTRBIT_MAXWORDS];
349} nfsattrbit_t;
350
351#define NFSZERO_ATTRBIT(b) do { (b)->bits[0] = 0; (b)->bits[1] = 0; } while (0)
352#define NFSSET_ATTRBIT(t, f) do { (t)->bits[0] = (f)->bits[0]; \
353 (t)->bits[1] = (f)->bits[1]; } while (0)
354#define NFSSETSUPP_ATTRBIT(b) do { \
355 (b)->bits[0] = NFSATTRBIT_SUPP0; \
356 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY); } while (0)
357#define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32)))
358#define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32)))
359#define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32)))
360#define NFSCLRALL_ATTRBIT(b, a) do { \
361 (b)->bits[0] &= ~((a)->bits[0]); \
362 (b)->bits[1] &= ~((a)->bits[1]); \
363 } while (0)
364#define NFSCLRNOT_ATTRBIT(b, a) do { \
365 (b)->bits[0] &= ((a)->bits[0]); \
366 (b)->bits[1] &= ((a)->bits[1]); \
367 } while (0)
368#define NFSCLRNOTFILLABLE_ATTRBIT(b) do { \
369 (b)->bits[0] &= NFSATTRBIT_SUPP0; \
370 (b)->bits[1] &= NFSATTRBIT_SUPP1; } while (0)
371#define NFSCLRNOTSETABLE_ATTRBIT(b) do { \
372 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \
373 (b)->bits[1] &= NFSATTRBIT_SETABLE1; } while (0)
374#define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1])
375#define NFSEQUAL_ATTRBIT(b, p) \
376 ((b)->bits[0] == (p)->bits[0] && (b)->bits[1] == (p)->bits[1])
377#define NFSGETATTR_ATTRBIT(b) do { \
378 (b)->bits[0] = NFSATTRBIT_GETATTR0; \
379 (b)->bits[1] = NFSATTRBIT_GETATTR1; } while (0)
380#define NFSWCCATTR_ATTRBIT(b) do { \
381 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \
382 (b)->bits[1] = NFSATTRBIT_WCCATTR1; } while (0)
383#define NFSWRITEGETATTR_ATTRBIT(b) do { \
384 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \
385 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; } while (0)
386#define NFSCBGETATTR_ATTRBIT(b, c) do { \
387 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \
388 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); } while (0)
389#define NFSPATHCONF_GETATTRBIT(b) do { \
390 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \
391 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; } while (0)
392#define NFSSTATFS_GETATTRBIT(b) do { \
393 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \
394 (b)->bits[1] = NFSGETATTRBIT_STATFS1; } while (0)
395#define NFSISSETSTATFS_ATTRBIT(b) \
396 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \
397 ((b)->bits[1] & NFSATTRBIT_STATFS1))
398#define NFSCLRSTATFS_ATTRBIT(b) do { \
399 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \
400 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; } while (0)
401#define NFSREADDIRPLUS_ATTRBIT(b) do { \
402 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \
403 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; } while (0)
404#define NFSREFERRAL_ATTRBIT(b) do { \
405 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \
406 (b)->bits[1] = NFSATTRBIT_REFERRAL1; } while (0)
407
408/*
409 * Store uid, gid creds that were used when the stateid was acquired.
410 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire,
411 * so that's how many gets stored here.
412 */
413struct nfscred {
414 uid_t nfsc_uid;
415 gid_t nfsc_groups[NFS_MAXGRPS + 1];
416 int nfsc_ngroups;
417};
418
419/*
420 * Constants that define the file handle for the V4 root directory.
421 * (The FSID must never be used by other file systems that are exported.)
422 */
423#define NFSV4ROOT_FSID0 ((int32_t) -1)
424#define NFSV4ROOT_FSID1 ((int32_t) -1)
425#define NFSV4ROOT_REFERRAL ((int32_t) -2)
426#define NFSV4ROOT_INO 2 /* It's traditional */
427#define NFSV4ROOT_GEN 1
428
429/*
430 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
431 * What should be in this set is open to debate, but I believe that since
432 * I/O system calls on ufs are never interrupted by signals the set should
433 * be minimal. My reasoning is that many current programs that use signals
434 * such as SIGALRM will not expect file I/O system calls to be interrupted
435 * by them and break.
436 */
437#if defined(_KERNEL) || defined(KERNEL)
438
439struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
440
441/*
442 * Socket errors ignored for connectionless sockets?
443 * For now, ignore them all
444 */
445#define NFSIGNORE_SOERROR(s, e) \
446 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
447 ((s) & PR_CONNREQUIRED) == 0)
448
449
450/*
451 * This structure holds socket information for a connection. Used by the
452 * client and the server for callbacks.
453 */
454struct nfssockreq {
455 NFSSOCKADDR_T nr_nam;
456 int nr_sotype;
457 int nr_soproto;
458 int nr_soflags;
459 struct ucred *nr_cred;
460 int nr_lock;
461 NFSMUTEX_T nr_mtx;
462 u_int32_t nr_prog;
463 u_int32_t nr_vers;
464 struct __rpc_client *nr_client;
465};
466
467/*
468 * And associated nr_lock bits.
469 */
470#define NFSR_SNDLOCK 0x01
471#define NFSR_WANTSND 0x02
472#define NFSR_RCVLOCK 0x04
473#define NFSR_WANTRCV 0x08
474#define NFSR_RESERVEDPORT 0x10
475#define NFSR_LOCALHOST 0x20
476
477/*
478 * Queue head for nfsreq's
479 */
480TAILQ_HEAD(nfsreqhead, nfsreq);
481
482/* This is the only nfsreq R_xxx flag still used. */
483#define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this
484 rpc gets a stale state reply */
485
486/*
487 * Network address hash list element
488 */
489union nethostaddr {
490 struct in_addr had_inet;
491 struct in6_addr had_inet6;
492};
493
494/*
495 * Structure of list of mechanisms.
496 */
497struct nfsgss_mechlist {
498 int len;
499 const u_char *str;
500 int totlen;
501};
502#define KERBV_MECH 0 /* position in list */
503
504/*
505 * This structure is used by the server for describing each request.
506 */
507struct nfsrv_descript {
508 mbuf_t nd_mrep; /* Request mbuf list */
509 mbuf_t nd_md; /* Current dissect mbuf */
510 mbuf_t nd_mreq; /* Reply mbuf list */
511 mbuf_t nd_mb; /* Current build mbuf */
512 NFSSOCKADDR_T nd_nam; /* and socket addr */
513 NFSSOCKADDR_T nd_nam2; /* return socket addr */
514 caddr_t nd_dpos; /* Current dissect pos */
515 caddr_t nd_bpos; /* Current build pos */
516 u_int16_t nd_procnum; /* RPC # */
517 u_int32_t nd_flag; /* nd_flag */
518 u_int32_t nd_repstat; /* Reply status */
519 int *nd_errp; /* Pointer to ret status */
520 u_int32_t nd_retxid; /* Reply xid */
521 struct nfsrvcache *nd_rp; /* Assoc. cache entry */
522 struct timeval nd_starttime; /* Time RPC initiated */
523 fhandle_t nd_fh; /* File handle */
524 struct ucred *nd_cred; /* Credentials */
525 uid_t nd_saveduid; /* Saved uid */
526 u_int64_t nd_sockref; /* Rcv socket ref# */
527 u_int64_t nd_compref; /* Compound RPC ref# */
528 time_t nd_tcpconntime; /* Time TCP connection est. */
529 nfsquad_t nd_clientid; /* Implied clientid */
530 int nd_gssnamelen; /* principal name length */
531 char *nd_gssname; /* principal name */
532};
533
534#define nd_princlen nd_gssnamelen
535#define nd_principal nd_gssname
536
537/* Bits for "nd_flag" */
538#define ND_DONTSAVEREPLY 0x00000001
539#define ND_SAVEREPLY 0x00000002
540#define ND_NFSV2 0x00000004
541#define ND_NFSV3 0x00000008
542#define ND_NFSV4 0x00000010
543#define ND_KERBV 0x00000020
544#define ND_GSSINTEGRITY 0x00000040
545#define ND_GSSPRIVACY 0x00000080
546#define ND_WINDOWVERF 0x00000100
547#define ND_GSSINITREPLY 0x00000200
548#define ND_STREAMSOCK 0x00000400
549#define ND_PUBLOOKUP 0x00000800
550#define ND_USEGSSNAME 0x00001000
551#define ND_SAMETCPCONN 0x00002000
552#define ND_IMPLIEDCLID 0x00004000
553#define ND_NOMOREDATA 0x00008000
554#define ND_V4WCCATTR 0x00010000
555#define ND_NFSCB 0x00020000
556#define ND_AUTHNONE 0x00040000
557#define ND_EXAUTHSYS 0x00080000
558#define ND_EXGSS 0x00100000
559#define ND_EXGSSINTEGRITY 0x00200000
560#define ND_EXGSSPRIVACY 0x00400000
561#define ND_INCRSEQID 0x00800000
562
563/*
564 * ND_GSS should be the "or" of all GSS type authentications.
565 */
566#define ND_GSS (ND_KERBV)
567
568struct nfsv4_opflag {
569 int retfh;
570 int needscfh;
571 int savereply;
572 int modifyfs;
573 int lktype;
574};
575
576/*
577 * Flags used to indicate what to do w.r.t. seqid checking.
578 */
579#define NFSRVSEQID_FIRST 0x01
580#define NFSRVSEQID_LAST 0x02
581#define NFSRVSEQID_OPEN 0x04
582
583/*
584 * assign a doubly linked list to a new head
585 * and prepend one list into another.
586 */
587#define LIST_NEWHEAD(nhead, ohead, field) do { \
588 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \
589 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \
590 (ohead)->lh_first = NULL; \
591 } while (0)
592
593#define LIST_PREPEND(head, phead, lelm, field) do { \
594 if ((head)->lh_first != NULL) { \
595 (lelm)->field.le_next = (head)->lh_first; \
596 (lelm)->field.le_next->field.le_prev = \
597 &(lelm)->field.le_next; \
598 } \
599 (head)->lh_first = (phead)->lh_first; \
600 (head)->lh_first->field.le_prev = &(head)->lh_first; \
601 } while (0)
602
603/*
604 * File handle structure for client. Malloc'd to the correct length with
605 * malloc type M_NFSFH.
606 */
607struct nfsfh {
608 u_int16_t nfh_len; /* Length of file handle */
609 u_int8_t nfh_fh[1]; /* and the file handle */
610};
611
612/*
613 * File handle structure for server. The NFSRV_MAXFH constant is
614 * set in nfsdport.h. I use a 32bit length, so that alignment is
615 * preserved.
616 */
617struct nfsrvfh {
618 u_int32_t nfsrvfh_len;
619 u_int8_t nfsrvfh_data[NFSRV_MAXFH];
620};
621
622/*
623 * This structure is used for sleep locks on the NFSv4 nfsd threads and
624 * NFSv4 client data structures.
625 */
626struct nfsv4lock {
627 u_int32_t nfslock_usecnt;
628 u_int8_t nfslock_lock;
629};
630#define NFSV4LOCK_LOCK 0x01
631#define NFSV4LOCK_LOCKWANTED 0x02
632#define NFSV4LOCK_WANTED 0x04
633
634/*
635 * Values for the override argument for nfsvno_accchk().
636 */
637#define NFSACCCHK_NOOVERRIDE 0
638#define NFSACCCHK_ALLOWROOT 1
639#define NFSACCCHK_ALLOWOWNER 2
640
641/*
642 * and values for the vpislocked argument for nfsvno_accchk().
643 */
644#define NFSACCCHK_VPNOTLOCKED 0
645#define NFSACCCHK_VPISLOCKED 1
646
647#endif /* _KERNEL */
648
649#endif /* _NFS_NFS_H */
| 43#define NFS_HZ (hz / nfscl_ticks) /* Ticks/sec */
44#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
45#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
46#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
47#define NFS_TCPTIMEO 300 /* TCP timeout */
48#define NFS_MAXRCVTIMEO 60 /* 1 minute in seconds */
49#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
50#define NFS_MAXREXMIT 100 /* Stop counting after this many */
51#define NFSV4_CALLBACKTIMEO (2 * NFS_HZ) /* Timeout in ticks */
52#define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */
53#define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */
54#define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */
55 /* to gssd or nfsuserd */
56#define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */
57#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
58#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
59#define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */
60#define NFS_MAXGRPS 16 /* Max. size of groups list */
61#define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */
62#ifndef NFS_REMOVETIMEO
63#define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */
64#endif
65#ifndef NFS_MINATTRTIMO
66#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
67#endif
68#ifndef NFS_MAXATTRTIMO
69#define NFS_MAXATTRTIMO 60
70#endif
71#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
72#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
73#define NFS_READDIRSIZE 8192 /* Def. readdir size */
74#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
75#define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */
76#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */
77#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
78#ifndef NFSRV_LEASE
79#define NFSRV_LEASE 120 /* Lease time in seconds for V4 */
80#endif /* assigned to nfsrv_lease */
81#ifndef NFSRV_STALELEASE
82#define NFSRV_STALELEASE (5 * nfsrv_lease)
83#endif
84#ifndef NFSRV_MOULDYLEASE
85#define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */
86#endif
87#ifndef NFSCLIENTHASHSIZE
88#define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */
89#endif
90#ifndef NFSLOCKHASHSIZE
91#define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */
92#endif
93#define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */
94#ifndef NFSUSERHASHSIZE
95#define NFSUSERHASHSIZE 30 /* Size of user id hash table */
96#endif
97#ifndef NFSGROUPHASHSIZE
98#define NFSGROUPHASHSIZE 5 /* Size of group id hash table */
99#endif
100#ifndef NFSCLDELEGHIGHWATER
101#define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */
102#endif
103#ifndef NFSNOOPEN /* Inactive open owner (sec) */
104#define NFSNOOPEN 120
105#endif
106#define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */
107#define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */
108#ifndef NFSRVCACHE_UDPTIMEOUT
109#define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */
110#endif
111#ifndef NFSRVCACHE_UDPHIGHWATER
112#define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */
113#endif
114#ifndef NFSRVCACHE_TCPTIMEOUT
115#define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */
116#endif
117#ifndef NFSRVCACHE_FLOODLEVEL
118#define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */
119#endif
120#ifndef NFSRV_CLIENTHIGHWATER
121#define NFSRV_CLIENTHIGHWATER 1000
122#endif
123#ifndef NFSRV_MAXDUMPLIST
124#define NFSRV_MAXDUMPLIST 10000
125#endif
126#ifndef NFS_ACCESSCACHESIZE
127#define NFS_ACCESSCACHESIZE 8
128#endif
129#define NFSV4_CBPORT 7745 /* Callback port for testing */
130
131/*
132 * This macro defines the high water mark for issuing V4 delegations.
133 * (It is currently set at a conservative 20% of NFSRV_V4STATELIMIT. This
134 * may want to increase when clients can make more effective use of
135 * delegations.)
136 */
137#define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > NFSRV_V4STATELIMIT)
138
139#define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */
140
141/*
142 * Oddballs
143 */
144#define NFS_CMPFH(n, f, s) \
145 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s)))
146#define NFSRV_CMPFH(nf, ns, f, s) \
147 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s)))
148#define NFS_CMPTIME(t1, t2) \
149 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec)
150#define NFS_SETTIME(t) do { \
151 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0)
152#define NFS_SRVMAXDATA(n) \
153 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \
154 NFS_MAXDATA : NFS_V2MAXDATA)
155#define NFS64BITSSET 0xffffffffffffffffull
156#define NFS64BITSMINUS1 0xfffffffffffffffeull
157
158/*
159 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs
160 * and nfsloaduser should ever try and use it.
161 */
162struct nfsd_addsock_args {
163 int sock; /* Socket to serve */
164 caddr_t name; /* Client addr for connection based sockets */
165 int namelen; /* Length of name */
166};
167
168/*
169 * nfsd argument for new krpc.
170 */
171struct nfsd_nfsd_args {
172 const char *principal; /* GSS-API service principal name */
173 int minthreads; /* minimum service thread count */
174 int maxthreads; /* maximum service thread count */
175};
176
177/*
178 * Arguments for use by the callback daemon.
179 */
180struct nfsd_nfscbd_args {
181 const char *principal; /* GSS-API service principal name */
182};
183
184struct nfscbd_args {
185 int sock; /* Socket to serve */
186 caddr_t name; /* Client addr for connection based sockets */
187 int namelen; /* Length of name */
188 u_short port; /* Port# for callbacks */
189};
190
191struct nfsd_idargs {
192 int nid_flag; /* Flags (see below) */
193 uid_t nid_uid; /* user/group id */
194 gid_t nid_gid;
195 int nid_usermax; /* Upper bound on user name cache */
196 int nid_usertimeout;/* User name timeout (minutes) */
197 u_char *nid_name; /* Name */
198 int nid_namelen; /* and its length */
199};
200
201struct nfsd_clid {
202 int nclid_idlen; /* Length of client id */
203 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */
204};
205
206struct nfsd_dumplist {
207 int ndl_size; /* Number of elements */
208 void *ndl_list; /* and the list of elements */
209};
210
211struct nfsd_dumpclients {
212 u_int32_t ndcl_flags; /* LCL_xxx flags */
213 u_int32_t ndcl_nopenowners; /* Number of openowners */
214 u_int32_t ndcl_nopens; /* and opens */
215 u_int32_t ndcl_nlockowners; /* and of lockowners */
216 u_int32_t ndcl_nlocks; /* and of locks */
217 u_int32_t ndcl_ndelegs; /* and of delegations */
218 u_int32_t ndcl_nolddelegs; /* and old delegations */
219 sa_family_t ndcl_addrfam; /* Callback address */
220 union {
221 struct in_addr sin_addr;
222 struct in6_addr sin6_addr;
223 } ndcl_cbaddr;
224 struct nfsd_clid ndcl_clid; /* and client id */
225};
226
227struct nfsd_dumplocklist {
228 char *ndllck_fname; /* File Name */
229 int ndllck_size; /* Number of elements */
230 void *ndllck_list; /* and the list of elements */
231};
232
233struct nfsd_dumplocks {
234 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */
235 nfsv4stateid_t ndlck_stateid; /* stateid */
236 u_int64_t ndlck_first; /* lock byte range */
237 u_int64_t ndlck_end;
238 struct nfsd_clid ndlck_owner; /* Owner of open/lock */
239 sa_family_t ndlck_addrfam; /* Callback address */
240 union {
241 struct in_addr sin_addr;
242 struct in6_addr sin6_addr;
243 } ndlck_cbaddr;
244 struct nfsd_clid ndlck_clid; /* and client id */
245};
246
247/*
248 * Structure for referral information.
249 */
250struct nfsreferral {
251 u_char *nfr_srvlist; /* List of servers */
252 int nfr_srvcnt; /* number of servers */
253 vnode_t nfr_vp; /* vnode for referral */
254 u_int32_t nfr_dfileno; /* assigned dir inode# */
255};
256
257/*
258 * Flags for lc_flags and opsflags for nfsrv_getclient().
259 */
260#define LCL_NEEDSCONFIRM 0x00000001
261#define LCL_DONTCLEAN 0x00000002
262#define LCL_WAKEUPWANTED 0x00000004
263#define LCL_TCPCALLBACK 0x00000008
264#define LCL_CALLBACKSON 0x00000010
265#define LCL_INDEXNOTOK 0x00000020
266#define LCL_STAMPEDSTABLE 0x00000040
267#define LCL_EXPIREIT 0x00000080
268#define LCL_CBDOWN 0x00000100
269#define LCL_KERBV 0x00000400
270#define LCL_NAME 0x00000800
271#define LCL_NEEDSCBNULL 0x00001000
272#define LCL_GSSINTEGRITY 0x00002000
273#define LCL_GSSPRIVACY 0x00004000
274#define LCL_ADMINREVOKED 0x00008000
275
276#define LCL_GSS LCL_KERBV /* Or of all mechs */
277
278/*
279 * Bits for flags in nfslock and nfsstate.
280 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as
281 * below, in the correct order, so the shifts work for tests.
282 */
283#define NFSLCK_READACCESS 0x00000001
284#define NFSLCK_WRITEACCESS 0x00000002
285#define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS)
286#define NFSLCK_SHIFT 2
287#define NFSLCK_READDENY 0x00000004
288#define NFSLCK_WRITEDENY 0x00000008
289#define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY)
290#define NFSLCK_SHAREBITS \
291 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY)
292#define NFSLCK_LOCKSHIFT 4
293#define NFSLCK_READ 0x00000010
294#define NFSLCK_WRITE 0x00000020
295#define NFSLCK_BLOCKING 0x00000040
296#define NFSLCK_RECLAIM 0x00000080
297#define NFSLCK_OPENTOLOCK 0x00000100
298#define NFSLCK_TEST 0x00000200
299#define NFSLCK_LOCK 0x00000400
300#define NFSLCK_UNLOCK 0x00000800
301#define NFSLCK_OPEN 0x00001000
302#define NFSLCK_CLOSE 0x00002000
303#define NFSLCK_CHECK 0x00004000
304#define NFSLCK_RELEASE 0x00008000
305#define NFSLCK_NEEDSCONFIRM 0x00010000
306#define NFSLCK_CONFIRM 0x00020000
307#define NFSLCK_DOWNGRADE 0x00040000
308#define NFSLCK_DELEGREAD 0x00080000
309#define NFSLCK_DELEGWRITE 0x00100000
310#define NFSLCK_DELEGCUR 0x00200000
311#define NFSLCK_DELEGPREV 0x00400000
312#define NFSLCK_OLDDELEG 0x00800000
313#define NFSLCK_DELEGRECALL 0x01000000
314#define NFSLCK_SETATTR 0x02000000
315#define NFSLCK_DELEGPURGE 0x04000000
316#define NFSLCK_DELEGRETURN 0x08000000
317
318/* And bits for nid_flag */
319#define NFSID_INITIALIZE 0x0001
320#define NFSID_ADDUID 0x0002
321#define NFSID_DELUID 0x0004
322#define NFSID_ADDUSERNAME 0x0008
323#define NFSID_DELUSERNAME 0x0010
324#define NFSID_ADDGID 0x0020
325#define NFSID_DELGID 0x0040
326#define NFSID_ADDGROUPNAME 0x0080
327#define NFSID_DELGROUPNAME 0x0100
328
329/*
330 * fs.nfs sysctl(3) identifiers
331 */
332#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
333
334#define FS_NFS_NAMES { \
335 { 0, 0 }, \
336 { "nfsstats", CTLTYPE_STRUCT }, \
337}
338
339/*
340 * Here is the definition of the attribute bits array and macros that
341 * manipulate it.
342 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!!
343 * It is (NFSATTRBIT_MAX + 31) / 32.
344 */
345#define NFSATTRBIT_MAXWORDS 2
346
347typedef struct {
348 u_int32_t bits[NFSATTRBIT_MAXWORDS];
349} nfsattrbit_t;
350
351#define NFSZERO_ATTRBIT(b) do { (b)->bits[0] = 0; (b)->bits[1] = 0; } while (0)
352#define NFSSET_ATTRBIT(t, f) do { (t)->bits[0] = (f)->bits[0]; \
353 (t)->bits[1] = (f)->bits[1]; } while (0)
354#define NFSSETSUPP_ATTRBIT(b) do { \
355 (b)->bits[0] = NFSATTRBIT_SUPP0; \
356 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY); } while (0)
357#define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32)))
358#define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32)))
359#define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32)))
360#define NFSCLRALL_ATTRBIT(b, a) do { \
361 (b)->bits[0] &= ~((a)->bits[0]); \
362 (b)->bits[1] &= ~((a)->bits[1]); \
363 } while (0)
364#define NFSCLRNOT_ATTRBIT(b, a) do { \
365 (b)->bits[0] &= ((a)->bits[0]); \
366 (b)->bits[1] &= ((a)->bits[1]); \
367 } while (0)
368#define NFSCLRNOTFILLABLE_ATTRBIT(b) do { \
369 (b)->bits[0] &= NFSATTRBIT_SUPP0; \
370 (b)->bits[1] &= NFSATTRBIT_SUPP1; } while (0)
371#define NFSCLRNOTSETABLE_ATTRBIT(b) do { \
372 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \
373 (b)->bits[1] &= NFSATTRBIT_SETABLE1; } while (0)
374#define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1])
375#define NFSEQUAL_ATTRBIT(b, p) \
376 ((b)->bits[0] == (p)->bits[0] && (b)->bits[1] == (p)->bits[1])
377#define NFSGETATTR_ATTRBIT(b) do { \
378 (b)->bits[0] = NFSATTRBIT_GETATTR0; \
379 (b)->bits[1] = NFSATTRBIT_GETATTR1; } while (0)
380#define NFSWCCATTR_ATTRBIT(b) do { \
381 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \
382 (b)->bits[1] = NFSATTRBIT_WCCATTR1; } while (0)
383#define NFSWRITEGETATTR_ATTRBIT(b) do { \
384 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \
385 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; } while (0)
386#define NFSCBGETATTR_ATTRBIT(b, c) do { \
387 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \
388 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); } while (0)
389#define NFSPATHCONF_GETATTRBIT(b) do { \
390 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \
391 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; } while (0)
392#define NFSSTATFS_GETATTRBIT(b) do { \
393 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \
394 (b)->bits[1] = NFSGETATTRBIT_STATFS1; } while (0)
395#define NFSISSETSTATFS_ATTRBIT(b) \
396 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \
397 ((b)->bits[1] & NFSATTRBIT_STATFS1))
398#define NFSCLRSTATFS_ATTRBIT(b) do { \
399 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \
400 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; } while (0)
401#define NFSREADDIRPLUS_ATTRBIT(b) do { \
402 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \
403 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; } while (0)
404#define NFSREFERRAL_ATTRBIT(b) do { \
405 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \
406 (b)->bits[1] = NFSATTRBIT_REFERRAL1; } while (0)
407
408/*
409 * Store uid, gid creds that were used when the stateid was acquired.
410 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire,
411 * so that's how many gets stored here.
412 */
413struct nfscred {
414 uid_t nfsc_uid;
415 gid_t nfsc_groups[NFS_MAXGRPS + 1];
416 int nfsc_ngroups;
417};
418
419/*
420 * Constants that define the file handle for the V4 root directory.
421 * (The FSID must never be used by other file systems that are exported.)
422 */
423#define NFSV4ROOT_FSID0 ((int32_t) -1)
424#define NFSV4ROOT_FSID1 ((int32_t) -1)
425#define NFSV4ROOT_REFERRAL ((int32_t) -2)
426#define NFSV4ROOT_INO 2 /* It's traditional */
427#define NFSV4ROOT_GEN 1
428
429/*
430 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
431 * What should be in this set is open to debate, but I believe that since
432 * I/O system calls on ufs are never interrupted by signals the set should
433 * be minimal. My reasoning is that many current programs that use signals
434 * such as SIGALRM will not expect file I/O system calls to be interrupted
435 * by them and break.
436 */
437#if defined(_KERNEL) || defined(KERNEL)
438
439struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
440
441/*
442 * Socket errors ignored for connectionless sockets?
443 * For now, ignore them all
444 */
445#define NFSIGNORE_SOERROR(s, e) \
446 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
447 ((s) & PR_CONNREQUIRED) == 0)
448
449
450/*
451 * This structure holds socket information for a connection. Used by the
452 * client and the server for callbacks.
453 */
454struct nfssockreq {
455 NFSSOCKADDR_T nr_nam;
456 int nr_sotype;
457 int nr_soproto;
458 int nr_soflags;
459 struct ucred *nr_cred;
460 int nr_lock;
461 NFSMUTEX_T nr_mtx;
462 u_int32_t nr_prog;
463 u_int32_t nr_vers;
464 struct __rpc_client *nr_client;
465};
466
467/*
468 * And associated nr_lock bits.
469 */
470#define NFSR_SNDLOCK 0x01
471#define NFSR_WANTSND 0x02
472#define NFSR_RCVLOCK 0x04
473#define NFSR_WANTRCV 0x08
474#define NFSR_RESERVEDPORT 0x10
475#define NFSR_LOCALHOST 0x20
476
477/*
478 * Queue head for nfsreq's
479 */
480TAILQ_HEAD(nfsreqhead, nfsreq);
481
482/* This is the only nfsreq R_xxx flag still used. */
483#define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this
484 rpc gets a stale state reply */
485
486/*
487 * Network address hash list element
488 */
489union nethostaddr {
490 struct in_addr had_inet;
491 struct in6_addr had_inet6;
492};
493
494/*
495 * Structure of list of mechanisms.
496 */
497struct nfsgss_mechlist {
498 int len;
499 const u_char *str;
500 int totlen;
501};
502#define KERBV_MECH 0 /* position in list */
503
504/*
505 * This structure is used by the server for describing each request.
506 */
507struct nfsrv_descript {
508 mbuf_t nd_mrep; /* Request mbuf list */
509 mbuf_t nd_md; /* Current dissect mbuf */
510 mbuf_t nd_mreq; /* Reply mbuf list */
511 mbuf_t nd_mb; /* Current build mbuf */
512 NFSSOCKADDR_T nd_nam; /* and socket addr */
513 NFSSOCKADDR_T nd_nam2; /* return socket addr */
514 caddr_t nd_dpos; /* Current dissect pos */
515 caddr_t nd_bpos; /* Current build pos */
516 u_int16_t nd_procnum; /* RPC # */
517 u_int32_t nd_flag; /* nd_flag */
518 u_int32_t nd_repstat; /* Reply status */
519 int *nd_errp; /* Pointer to ret status */
520 u_int32_t nd_retxid; /* Reply xid */
521 struct nfsrvcache *nd_rp; /* Assoc. cache entry */
522 struct timeval nd_starttime; /* Time RPC initiated */
523 fhandle_t nd_fh; /* File handle */
524 struct ucred *nd_cred; /* Credentials */
525 uid_t nd_saveduid; /* Saved uid */
526 u_int64_t nd_sockref; /* Rcv socket ref# */
527 u_int64_t nd_compref; /* Compound RPC ref# */
528 time_t nd_tcpconntime; /* Time TCP connection est. */
529 nfsquad_t nd_clientid; /* Implied clientid */
530 int nd_gssnamelen; /* principal name length */
531 char *nd_gssname; /* principal name */
532};
533
534#define nd_princlen nd_gssnamelen
535#define nd_principal nd_gssname
536
537/* Bits for "nd_flag" */
538#define ND_DONTSAVEREPLY 0x00000001
539#define ND_SAVEREPLY 0x00000002
540#define ND_NFSV2 0x00000004
541#define ND_NFSV3 0x00000008
542#define ND_NFSV4 0x00000010
543#define ND_KERBV 0x00000020
544#define ND_GSSINTEGRITY 0x00000040
545#define ND_GSSPRIVACY 0x00000080
546#define ND_WINDOWVERF 0x00000100
547#define ND_GSSINITREPLY 0x00000200
548#define ND_STREAMSOCK 0x00000400
549#define ND_PUBLOOKUP 0x00000800
550#define ND_USEGSSNAME 0x00001000
551#define ND_SAMETCPCONN 0x00002000
552#define ND_IMPLIEDCLID 0x00004000
553#define ND_NOMOREDATA 0x00008000
554#define ND_V4WCCATTR 0x00010000
555#define ND_NFSCB 0x00020000
556#define ND_AUTHNONE 0x00040000
557#define ND_EXAUTHSYS 0x00080000
558#define ND_EXGSS 0x00100000
559#define ND_EXGSSINTEGRITY 0x00200000
560#define ND_EXGSSPRIVACY 0x00400000
561#define ND_INCRSEQID 0x00800000
562
563/*
564 * ND_GSS should be the "or" of all GSS type authentications.
565 */
566#define ND_GSS (ND_KERBV)
567
568struct nfsv4_opflag {
569 int retfh;
570 int needscfh;
571 int savereply;
572 int modifyfs;
573 int lktype;
574};
575
576/*
577 * Flags used to indicate what to do w.r.t. seqid checking.
578 */
579#define NFSRVSEQID_FIRST 0x01
580#define NFSRVSEQID_LAST 0x02
581#define NFSRVSEQID_OPEN 0x04
582
583/*
584 * assign a doubly linked list to a new head
585 * and prepend one list into another.
586 */
587#define LIST_NEWHEAD(nhead, ohead, field) do { \
588 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \
589 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \
590 (ohead)->lh_first = NULL; \
591 } while (0)
592
593#define LIST_PREPEND(head, phead, lelm, field) do { \
594 if ((head)->lh_first != NULL) { \
595 (lelm)->field.le_next = (head)->lh_first; \
596 (lelm)->field.le_next->field.le_prev = \
597 &(lelm)->field.le_next; \
598 } \
599 (head)->lh_first = (phead)->lh_first; \
600 (head)->lh_first->field.le_prev = &(head)->lh_first; \
601 } while (0)
602
603/*
604 * File handle structure for client. Malloc'd to the correct length with
605 * malloc type M_NFSFH.
606 */
607struct nfsfh {
608 u_int16_t nfh_len; /* Length of file handle */
609 u_int8_t nfh_fh[1]; /* and the file handle */
610};
611
612/*
613 * File handle structure for server. The NFSRV_MAXFH constant is
614 * set in nfsdport.h. I use a 32bit length, so that alignment is
615 * preserved.
616 */
617struct nfsrvfh {
618 u_int32_t nfsrvfh_len;
619 u_int8_t nfsrvfh_data[NFSRV_MAXFH];
620};
621
622/*
623 * This structure is used for sleep locks on the NFSv4 nfsd threads and
624 * NFSv4 client data structures.
625 */
626struct nfsv4lock {
627 u_int32_t nfslock_usecnt;
628 u_int8_t nfslock_lock;
629};
630#define NFSV4LOCK_LOCK 0x01
631#define NFSV4LOCK_LOCKWANTED 0x02
632#define NFSV4LOCK_WANTED 0x04
633
634/*
635 * Values for the override argument for nfsvno_accchk().
636 */
637#define NFSACCCHK_NOOVERRIDE 0
638#define NFSACCCHK_ALLOWROOT 1
639#define NFSACCCHK_ALLOWOWNER 2
640
641/*
642 * and values for the vpislocked argument for nfsvno_accchk().
643 */
644#define NFSACCCHK_VPNOTLOCKED 0
645#define NFSACCCHK_VPISLOCKED 1
646
647#endif /* _KERNEL */
648
649#endif /* _NFS_NFS_H */
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