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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23: /*
24: * Copyright (c) 1989, 1993, 1995
25: * The Regents of the University of California. All rights reserved.
26: *
27: * This code is derived from software contributed to Berkeley by
28: * Rick Macklem at The University of Guelph.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)nfs.h 8.4 (Berkeley) 5/1/95
59: * FreeBSD-Id: nfs.h,v 1.32 1997/10/12 20:25:38 phk Exp $
60: */
61:
62: #ifndef _NFS_NFS_H_
63: #define _NFS_NFS_H_
64:
65: /*
66: * Tunable constants for nfs
67: */
68:
69: #define NFS_MAXIOVEC 34
70: #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
71: #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
72: #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
73: #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
74: #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
75: #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
76: #define NFS_MAXREXMIT 100 /* Stop counting after this many */
77: #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
78: #define NFS_RETRANS 10 /* Num of retrans for soft mounts */
79: #define NFS_MAXGRPS 16 /* Max. size of groups list */
80: #ifndef NFS_MINATTRTIMO
81: #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
82: #endif
83: #ifndef NFS_MAXATTRTIMO
84: #define NFS_MAXATTRTIMO 60
85: #endif
86: #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
87: #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
88: #define NFS_READDIRSIZE 8192 /* Def. readdir size */
89: #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
90: #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
91: #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
92: #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */
93: #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */
94: #ifndef NFS_GATHERDELAY
95: #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */
96: #endif
97: #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
98:
99: /*
100: * Oddballs
101: */
102: #define NMOD(a) ((a) % nfs_asyncdaemons)
103: #define NFS_CMPFH(n, f, s) \
104: ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
105: #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
106: #define NFS_SRVMAXDATA(n) \
107: (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
108: NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
109:
110: /*
111: * XXX
112: * The B_INVAFTERWRITE flag should be set to whatever is required by the
113: * buffer cache code to say "Invalidate the block after it is written back".
114: */
115: #ifdef __FreeBSD__
116: #define B_INVAFTERWRITE B_NOCACHE
117: #else
118: #define B_INVAFTERWRITE B_INVAL
119: #endif
120:
121: /*
122: * The IO_METASYNC flag should be implemented for local file systems.
123: * (Until then, it is nothin at all.)
124: */
125: #ifndef IO_METASYNC
126: #define IO_METASYNC 0
127: #endif
128:
129: /*
130: * Set the attribute timeout based on how recently the file has been modified.
131: */
132: #define NFS_ATTRTIMEO(np) \
133: ((((np)->n_flag & NMODIFIED) || \
134: (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \
135: ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \
136: (time.tv_sec - (np)->n_mtime) / 10))
137:
138: /*
139: * Expected allocation sizes for major data structures. If the actual size
140: * of the structure exceeds these sizes, then malloc() will be allocating
141: * almost twice the memory required. This is used in nfs_init() to warn
142: * the sysadmin that the size of a structure should be reduced.
143: * (These sizes are always a power of 2. If the kernel malloc() changes
144: * to one that does not allocate space in powers of 2 size, then this all
145: * becomes bunk!)
146: */
147: #define NFS_NODEALLOC 256
148: #define NFS_MNTALLOC 512
149: #define NFS_SVCALLOC 256
150: #define NFS_UIDALLOC 128
151:
152: /*
153: * Arguments to mount NFS
154: */
155: #define NFS_ARGSVERSION 3 /* change when nfs_args changes */
156: struct nfs_args {
157: int version; /* args structure version number */
158: struct sockaddr *addr; /* file server address */
159: int addrlen; /* length of address */
160: int sotype; /* Socket type */
161: int proto; /* and Protocol */
162: u_char *fh; /* File handle to be mounted */
163: int fhsize; /* Size, in bytes, of fh */
164: int flags; /* flags */
165: int wsize; /* write size in bytes */
166: int rsize; /* read size in bytes */
167: int readdirsize; /* readdir size in bytes */
168: int timeo; /* initial timeout in .1 secs */
169: int retrans; /* times to retry send */
170: int maxgrouplist; /* Max. size of group list */
171: int readahead; /* # of blocks to readahead */
172: int leaseterm; /* Term (sec) of lease */
173: int deadthresh; /* Retrans threshold */
174: char *hostname; /* server's name */
175: };
176:
177: /*
178: * NFS mount option flags
179: */
180: #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
181: #define NFSMNT_WSIZE 0x00000002 /* set write size */
182: #define NFSMNT_RSIZE 0x00000004 /* set read size */
183: #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
184: #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
185: #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
186: #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
187: #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
188: #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */
189: #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
190: #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
191: #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
192: #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */
193: #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
194: #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
195: #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
196: #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
197: #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
198: #define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */
199: #define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
200: #define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
201: #define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
202: #define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */
203: #define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */
204: #define NFSMNT_DISMNT 0x00800000 /* Dismounted */
205: #define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */
206: #define NFSMNT_WANTSND 0x02000000 /* Want above */
207: #define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */
208: #define NFSMNT_WANTRCV 0x08000000 /* Want above */
209: #define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */
210: #define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */
211: #define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */
212: #define NFSMNT_AUTHERR 0x80000000 /* Authentication error */
213:
214: /*
215: * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
216: * should ever try and use it.
217: */
218: struct nfsd_args {
219: int sock; /* Socket to serve */
220: caddr_t name; /* Client addr for connection based sockets */
221: int namelen; /* Length of name */
222: };
223:
224: struct nfsd_srvargs {
225: struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
226: uid_t nsd_uid; /* Effective uid mapped to cred */
227: u_long nsd_haddr; /* Ip address of client */
228: struct ucred nsd_cr; /* Cred. uid maps to */
229: int nsd_authlen; /* Length of auth string (ret) */
230: u_char *nsd_authstr; /* Auth string (ret) */
231: int nsd_verflen; /* and the verfier */
232: u_char *nsd_verfstr;
233: struct timeval nsd_timestamp; /* timestamp from verifier */
234: u_long nsd_ttl; /* credential ttl (sec) */
235: NFSKERBKEY_T nsd_key; /* Session key */
236: };
237:
238: struct nfsd_cargs {
239: char *ncd_dirp; /* Mount dir path */
240: uid_t ncd_authuid; /* Effective uid */
241: int ncd_authtype; /* Type of authenticator */
242: int ncd_authlen; /* Length of authenticator string */
243: u_char *ncd_authstr; /* Authenticator string */
244: int ncd_verflen; /* and the verifier */
245: u_char *ncd_verfstr;
246: NFSKERBKEY_T ncd_key; /* Session key */
247: };
248:
249: /*
250: * XXX to allow amd to include nfs.h without nfsproto.h
251: */
252: #ifdef NFS_NPROCS
253: /*
254: * Stats structure
255: */
256: struct nfsstats {
257: int attrcache_hits;
258: int attrcache_misses;
259: int lookupcache_hits;
260: int lookupcache_misses;
261: int direofcache_hits;
262: int direofcache_misses;
263: int biocache_reads;
264: int read_bios;
265: int read_physios;
266: int biocache_writes;
267: int write_bios;
268: int write_physios;
269: int biocache_readlinks;
270: int readlink_bios;
271: int biocache_readdirs;
272: int readdir_bios;
273: int rpccnt[NFS_NPROCS];
274: int rpcretries;
275: int srvrpccnt[NFS_NPROCS];
276: int srvrpc_errs;
277: int srv_errs;
278: int rpcrequests;
279: int rpctimeouts;
280: int rpcunexpected;
281: int rpcinvalid;
282: int srvcache_inproghits;
283: int srvcache_idemdonehits;
284: int srvcache_nonidemdonehits;
285: int srvcache_misses;
286: int srvnqnfs_leases;
287: int srvnqnfs_maxleases;
288: int srvnqnfs_getleases;
289: int srvvop_writes;
290: };
291: #endif
292:
293: /*
294: * Flags for nfssvc() system call.
295: */
296: #define NFSSVC_BIOD 0x002
297: #define NFSSVC_NFSD 0x004
298: #define NFSSVC_ADDSOCK 0x008
299: #define NFSSVC_AUTHIN 0x010
300: #define NFSSVC_GOTAUTH 0x040
301: #define NFSSVC_AUTHINFAIL 0x080
302: #define NFSSVC_MNTD 0x100
303:
304: /*
305: * fs.nfs sysctl(3) identifiers
306: */
307: #define NFS_NFSSTATS 1 /* struct: struct nfsstats */
308: #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
309:
310: #define FS_NFS_NAMES { \
311: { 0, 0 }, \
312: { "nfsstats", CTLTYPE_STRUCT }, \
313: { "nfsprivport", CTLTYPE_INT }, \
314: }
315:
316: #ifndef NFS_MUIDHASHSIZ
317: #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
318: #endif
319: #ifndef NFS_WDELAYHASHSIZ
320: #define NFS_WDELAYHASHSIZ 16 /* and with this */
321: #endif
322:
323: /*
324: * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
325: * What should be in this set is open to debate, but I believe that since
326: * I/O system calls on ufs are never interrupted by signals the set should
327: * be minimal. My reasoning is that many current programs that use signals
328: * such as SIGALRM will not expect file I/O system calls to be interrupted
329: * by them and break.
330: */
331: #ifdef KERNEL
332:
333: #ifdef MALLOC_DECLARE
334: MALLOC_DECLARE(M_NFSREQ);
335: MALLOC_DECLARE(M_NFSMNT);
336: MALLOC_DECLARE(M_NFSDIROFF);
337: MALLOC_DECLARE(M_NFSRVDESC);
338: MALLOC_DECLARE(M_NFSUID);
339: MALLOC_DECLARE(M_NQLEASE);
340: MALLOC_DECLARE(M_NFSD);
341: MALLOC_DECLARE(M_NFSBIGFH);
342: #endif
343:
344: struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
345:
346: #define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
347: sigmask(SIGHUP)|sigmask(SIGQUIT))
348:
349: /*
350: * Socket errors ignored for connectionless sockets??
351: * For now, ignore them all
352: */
353: #define NFSIGNORE_SOERROR(s, e) \
354: ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
355: ((s) & PR_CONNREQUIRED) == 0)
356:
357: /*
358: * Nfs outstanding request list element
359: */
360: struct nfsreq {
361: TAILQ_ENTRY(nfsreq) r_chain;
362: struct mbuf *r_mreq;
363: struct mbuf *r_mrep;
364: struct mbuf *r_md;
365: caddr_t r_dpos;
366: struct nfsmount *r_nmp;
367: struct vnode *r_vp;
368: u_long r_xid;
369: int r_flags; /* flags on request, see below */
370: int r_retry; /* max retransmission count */
371: int r_rexmit; /* current retrans count */
372: int r_timer; /* tick counter on reply */
373: u_int32_t r_procnum; /* NFS procedure number */
374: int r_rtt; /* RTT for rpc */
375: struct proc *r_procp; /* Proc that did I/O system call */
376: };
377:
378: /*
379: * Queue head for nfsreq's
380: */
381: extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
382:
383: /* Flag values for r_flags */
384: #define R_TIMING 0x01 /* timing request (in mntp) */
385: #define R_SENT 0x02 /* request has been sent */
386: #define R_SOFTTERM 0x04 /* soft mnt, too many retries */
387: #define R_INTR 0x08 /* intr mnt, signal pending */
388: #define R_SOCKERR 0x10 /* Fatal error on socket */
389: #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
390: #define R_MUSTRESEND 0x40 /* Must resend request */
391: #define R_GETONEREP 0x80 /* Probe for one reply only */
392:
393: /*
394: * A list of nfssvc_sock structures is maintained with all the sockets
395: * that require service by the nfsd.
396: * The nfsuid structs hang off of the nfssvc_sock structs in both lru
397: * and uid hash lists.
398: */
399: #ifndef NFS_UIDHASHSIZ
400: #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
401: #endif
402: #define NUIDHASH(sock, uid) \
403: (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
404: #define NWDELAYHASH(sock, f) \
405: (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ])
406: #define NMUIDHASH(nmp, uid) \
407: (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
408: #define NFSNOHASH(fhsum) \
409: (&nfsnodehashtbl[(fhsum) & nfsnodehash])
410:
411: /*
412: * Network address hash list element
413: */
414: union nethostaddr {
415: u_long had_inetaddr;
416: struct mbuf *had_nam;
417: };
418:
419: struct nfsuid {
420: TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
421: LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
422: int nu_flag; /* Flags */
423: union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
424: struct ucred nu_cr; /* Cred uid mapped to */
425: int nu_expire; /* Expiry time (sec) */
426: struct timeval nu_timestamp; /* Kerb. timestamp */
427: u_long nu_nickname; /* Nickname on server */
428: NFSKERBKEY_T nu_key; /* and session key */
429: };
430:
431: #define nu_inetaddr nu_haddr.had_inetaddr
432: #define nu_nam nu_haddr.had_nam
433: /* Bits for nu_flag */
434: #define NU_INETADDR 0x1
435: #define NU_NAM 0x2
436: #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
437:
438: #ifdef notyet
439: /* XXX CSM 12/2/97 When/if we merge queue.h */
440: struct nfsrv_rec {
441: STAILQ_ENTRY(nfsrv_rec) nr_link;
442: struct sockaddr *nr_address;
443: struct mbuf *nr_packet;
444: };
445: #endif
446:
447: struct nfssvc_sock {
448: TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
449: TAILQ_HEAD(, nfsuid) ns_uidlruhead;
450: struct file *ns_fp;
451: struct socket *ns_so;
452: struct mbuf *ns_nam;
453: struct mbuf *ns_raw;
454: struct mbuf *ns_rawend;
455: struct mbuf *ns_rec;
456: struct mbuf *ns_recend;
457: struct mbuf *ns_frag;
458: int ns_flag;
459: int ns_solock;
460: int ns_cc;
461: int ns_reclen;
462: int ns_numuids;
463: u_long ns_sref;
464: LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
465: LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
466: LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
467: };
468:
469: /* Bits for "ns_flag" */
470: #define SLP_VALID 0x01
471: #define SLP_DOREC 0x02
472: #define SLP_NEEDQ 0x04
473: #define SLP_DISCONN 0x08
474: #define SLP_GETSTREAM 0x10
475: #define SLP_LASTFRAG 0x20
476: #define SLP_ALLFLAGS 0xff
477:
478: extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
479: extern int nfssvc_sockhead_flag;
480: #define SLP_INIT 0x01
481: #define SLP_WANTINIT 0x02
482:
483: /*
484: * One of these structures is allocated for each nfsd.
485: */
486: struct nfsd {
487: TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
488: int nfsd_flag; /* NFSD_ flags */
489: struct nfssvc_sock *nfsd_slp; /* Current socket */
490: int nfsd_authlen; /* Authenticator len */
491: u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
492: int nfsd_verflen; /* and the Verifier */
493: u_char nfsd_verfstr[RPCVERF_MAXSIZ];
494: struct proc *nfsd_procp; /* Proc ptr */
495: struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
496: };
497:
498: /* Bits for "nfsd_flag" */
499: #define NFSD_WAITING 0x01
500: #define NFSD_REQINPROG 0x02
501: #define NFSD_NEEDAUTH 0x04
502: #define NFSD_AUTHFAIL 0x08
503:
504: /*
505: * This structure is used by the server for describing each request.
506: * Some fields are used only when write request gathering is performed.
507: */
508: struct nfsrv_descript {
509: u_quad_t nd_time; /* Write deadline (usec) */
510: off_t nd_off; /* Start byte offset */
511: off_t nd_eoff; /* and end byte offset */
512: LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
513: LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
514: LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
515: struct mbuf *nd_mrep; /* Request mbuf list */
516: struct mbuf *nd_md; /* Current dissect mbuf */
517: struct mbuf *nd_mreq; /* Reply mbuf list */
518: struct mbuf *nd_nam; /* and socket addr */
519: struct mbuf *nd_nam2; /* return socket addr */
520: caddr_t nd_dpos; /* Current dissect pos */
521: u_int32_t nd_procnum; /* RPC # */
522: int nd_stable; /* storage type */
523: int nd_flag; /* nd_flag */
524: int nd_len; /* Length of this write */
525: int nd_repstat; /* Reply status */
526: u_long nd_retxid; /* Reply xid */
527: u_long nd_duration; /* Lease duration */
528: struct timeval nd_starttime; /* Time RPC initiated */
529: fhandle_t nd_fh; /* File handle */
530: struct ucred nd_cr; /* Credentials */
531: };
532:
533: /* Bits for "nd_flag" */
534: #define ND_READ LEASE_READ
535: #define ND_WRITE LEASE_WRITE
536: #define ND_CHECK 0x04
537: #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK)
538: #define ND_NFSV3 0x08
539: #define ND_NQNFS 0x10
540: #define ND_KERBNICK 0x20
541: #define ND_KERBFULL 0x40
542: #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
543:
544: extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
545: extern int nfsd_head_flag;
546: #define NFSD_CHECKSLP 0x01
547:
548: /*
549: * These macros compare nfsrv_descript structures.
550: */
551: #define NFSW_CONTIG(o, n) \
552: ((o)->nd_eoff >= (n)->nd_off && \
553: !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
554:
555: #define NFSW_SAMECRED(o, n) \
556: (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
557: !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
558: sizeof (struct ucred)))
559:
560: /*
561: * Defines for WebNFS
562: */
563:
564: #define WEBNFS_ESC_CHAR '%'
565: #define WEBNFS_SPECCHAR_START 0x80
566:
567: #define WEBNFS_NATIVE_CHAR 0x80
568: /*
569: * ..
570: * Possibly more here in the future.
571: */
572:
573: /*
574: * Macro for converting escape characters in WebNFS pathnames.
575: * Should really be in libkern.
576: */
577:
578: #define HEXTOC(c) \
579: ((c) >= 'a' ? ((c) - ('a' - 10)) : \
580: ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
581: #define HEXSTRTOI(p) \
582: ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
583:
584: #if DIAGNOSTIC
585:
586: extern int nfs_debug;
587: #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
588: #define NFS_DEBUG_WG 2 /* server write gathering */
589: #define NFS_DEBUG_RC 4 /* server request caching */
590: #define NFS_DEBUG_SILLY 8 /* nfs_sillyrename (.nfsXXX aka turd files) */
591: #define NFS_DEBUG_DUP 16 /* debug duplicate requests */
592: #define NFS_DEBUG_ATTR 32
593:
594: #define NFS_DPF(cat, args) \
595: do { \
596: if (nfs_debug & NFS_DEBUG_##cat) kprintf args; \
597: } while (0)
598:
599: #else
600:
601: #define NFS_DPF(cat, args)
602:
603: #endif
604:
605: int nfs_init __P((struct vfsconf *vfsp));
606: int nfs_reply __P((struct nfsreq *));
607: int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
608: int nfs_send __P((struct socket *, struct mbuf *, struct mbuf *,
609: struct nfsreq *));
610: int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
611: int, int, u_quad_t *, struct mbuf **, struct mbuf **,
612: caddr_t *));
613: int nfs_sndlock __P((int *, struct nfsreq *));
614: void nfs_sndunlock __P((int *flagp));
615: int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
616: int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
617: int));
618: int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *));
619: int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *,
620: int *));
621: int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
622: int nfs_asyncio __P((struct buf *, struct ucred *));
623: int nfs_doio __P((struct buf *, struct ucred *, struct proc *));
624: int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
625: int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
626: int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
627: int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
628: void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
629: struct nfs_fattr *));
630: void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
631: struct vattr *, struct mbuf **, char **));
632: void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
633: struct mbuf **, char **));
634: int netaddr_match __P((int, union nethostaddr *, struct mbuf *));
635: int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *,
636: struct ucred *, struct mbuf **, struct mbuf **,
637: caddr_t *));
638: int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
639: struct vattr *));
640: int nfs_namei __P((struct nameidata *, fhandle_t *, int,
641: struct nfssvc_sock *, struct mbuf *, struct mbuf **,
642: caddr_t *, struct vnode **, struct proc *, int, int));
643: void nfsm_adj __P((struct mbuf *, int, int));
644: int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
645: void nfsrv_initcache __P((void));
646: int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
647: char **, int *, char *, int *, NFSKERBKEY_T));
648: int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **,
649: int *, char *, int));
650: int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int,
651: NFSKERBKEY_T, struct mbuf **, char **,
652: struct mbuf *));
653: int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
654: void nfs_nhinit __P((void));
655: void nfs_timer __P((void*));
656: u_long nfs_hash __P((nfsfh_t *, int));
657: int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
658: struct nfsrv_descript **));
659: int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
660: struct mbuf **));
661: void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
662: void nfsrv_cleancache __P((void));
663: int nfs_connect __P((struct nfsmount *, struct nfsreq *));
664: void nfs_disconnect __P((struct nfsmount *));
665: int nfs_getattrcache __P((struct vnode *, struct vattr *));
666: int nfsm_strtmbuf __P((struct mbuf **, char **, char *, long));
667: int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *,
668: int));
669: int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
670: void nfsrv_init __P((int));
671: void nfs_clearcommit __P((struct mount *));
672: int nfsrv_errmap __P((struct nfsrv_descript *, int));
673: void nfsrvw_sort __P((gid_t *, int));
674: void nfsrv_setcred __P((struct ucred *, struct ucred *));
675: int nfs_writebp __P((struct buf *, int));
676: int nfsrv_object_create __P((struct vnode *));
677: void nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
678: int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
679: struct proc *, struct mbuf **));
680: int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
681: struct proc *p));
682:
683: int nfsrv3_access __P((struct nfsrv_descript *nfsd,
684: struct nfssvc_sock *slp,
685: struct proc *procp, struct mbuf **mrq));
686: int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
687: struct proc *procp, struct mbuf **mrq));
688: int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
689: struct proc *procp, struct mbuf **mrq));
690: int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
691: struct nfssvc_sock *, struct mbuf *, int *,
692: int, int));
693: int nfsrv_setpublicfs __P((struct mount *, struct netexport *,
694: struct export_args *));
695: int nfs_ispublicfh __P((fhandle_t *));
696: int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
697: struct proc *procp, struct mbuf **mrq));
698: int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
699: struct proc *procp, struct mbuf **mrq));
700: int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
701: struct proc *procp, struct mbuf **mrq));
702: int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
703: struct proc *procp, struct mbuf **mrq));
704: int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
705: struct proc *procp, struct mbuf **mrq));
706: int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
707: struct proc *procp, struct mbuf **mrq));
708: int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
709: struct proc *procp, struct mbuf **mrq));
710: int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
711: struct proc *procp, struct mbuf **mrq));
712: int nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
713: struct nfssvc_sock *slp, struct proc *procp,
714: struct mbuf **mrq));
715: int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
716: struct proc *procp, struct mbuf **mrq));
717: int nfsrv_readdir __P((struct nfsrv_descript *nfsd,
718: struct nfssvc_sock *slp,
719: struct proc *procp, struct mbuf **mrq));
720: int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
721: struct nfssvc_sock *slp, struct proc *procp,
722: struct mbuf **mrq));
723: int nfsrv_readlink __P((struct nfsrv_descript *nfsd,
724: struct nfssvc_sock *slp, struct proc *procp,
725: struct mbuf **mrq));
726: int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
727: struct proc *procp, struct mbuf **mrq));
728: int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
729: struct proc *procp, struct mbuf **mrq));
730: int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
731: struct proc *procp, struct mbuf **mrq));
732: int nfsrv_setattr __P((struct nfsrv_descript *nfsd,
733: struct nfssvc_sock *slp,
734: struct proc *procp, struct mbuf **mrq));
735: int nfsrv_statfs __P((struct nfsrv_descript *nfsd,
736: struct nfssvc_sock *slp,
737: struct proc *procp, struct mbuf **mrq));
738: int nfsrv_symlink __P((struct nfsrv_descript *nfsd,
739: struct nfssvc_sock *slp,
740: struct proc *procp, struct mbuf **mrq));
741: int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
742: struct proc *procp, struct mbuf **mrq));
743: void nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag));
744: void nfsrv_slpderef __P((struct nfssvc_sock *slp));
745:
746: #if DIAGNOSTIC
747:
748: #include <sys/time.h>
749: #include <kern/clock.h>
750:
751: extern uint nfstraceindx;
752: #define NFSTBUFSIZ 4096
753: struct nfstracerec { uint i1, i2, i3, i4; };
754: extern struct nfstracerec nfstracebuf[NFSTBUFSIZ];
755: extern uint nfstracemask; /* 32 bits - trace points over 31 are unconditional */
756:
757: /* 0x0000000f nfs_getattrcache trace points */
758: #define NFSTRC_GAC_MISS 0x00 /* 0x00000001 cache miss */
759: #define NFSTRC_GAC_HIT 0x01 /* 0x00000002 cache hit */
760: #define NFSTRC_GAC_NP 0x02 /* 0x00000004 np size mismatch - vp... */
761: #define NFSTRC_GAC_MAP 0x03 /* 0x00000008 Mapped size mismatch - vp... */
762: /* 0x000000f0 nfs_loadattrcache trace points */
763: #define NFSTRC_LAC 0x04 /* 0x00000010 function entry point - vp */
764: #define NFSTRC_LAC_INIT 0x05 /* 0x00000020 new vp & init n_mtime - vp */
765: #define NFSTRC_LAC_NP 0x06 /* 0x00000040 np size mismatch - vp... */
766: #define NFSTRC_LAC_MAP 0x07 /* 0x00000080 Mapped size mismatch - vp... */
767: /* 0x00000300 nfs_getattr trace points */
768: #define NFSTRC_GA_INV 0x08 /* 0x00000100 times mismatch - vp */
769: #define NFSTRC_GA_INV1 0x09 /* 0x00000200 invalidate ok - vp */
770: /* 0x00004000 vmp_invalidate trace points */
771: #define NFSTRC_VMP_INV 0x0e /* 0x00004000 function entry point - vmp */
772: /* 0x00008000 nfs_request trace points */
773: #define NFSTRC_REQ 0x0f /* 0x00008000 - alternates vp and procnum */
774: /* 0x00030000 vmp_push_range trace points */
775: #define NFSTRC_VPR 0x10 /* 0x00010000 entry point - vp... */
776: #define NFSTRC_VPR_DONE 0x11 /* 0x00020000 tail exit - error # */
777: /* 0x000c0000 nfs_doio trace points */
778: #define NFSTRC_DIO 0x12 /* 0x00040000 entry point - vp */
779: #define NFSTRC_DIO_DONE 0x13 /* 0x00080000 exit points - vp */
780: /* 0x00300000 mapfs_io trace points */
781: #define NFSTRC_MIO_WRT 0x14 /* 0x00100000 Write - vp... */
782: #define NFSTRC_MIO_READ 0x15 /* 0x00200000 Read - vp... */
783: /* 0x0f000000 mapfs_trunc trace points */
784: #define NFSTRC_MTR 0x18 /* 0x01000000 mapfs_trunc - vp... */
785: #define NFSTRC_MTR_MREM 0x19 /* 0x02000000 ditto, map_remove - vp... */
786: #define NFSTRC_MTR_RMAP 0x1a /* 0x04000000 ditto, remap_vnode - vp... */
787: #define NFSTRC_MTR_DIRT 0x1b /* 0x08000000 ditto, nfsdirty - vmp->va */
788: /* 0xf0000000 nfs_rcvlock & nfs_rcvunlock trace points */
789: #define NFSTRC_RCVLCKW 0x1c /* 0x10000000 seeking recieve lock (waiting) */
790: #define NFSTRC_RCVLCK 0x1d /* 0x20000000 getting recieve lock */
791: #define NFSTRC_RCVUNLW 0x1e /* 0x40000000 releasing rcv lock w/ wakeup */
792: #define NFSTRC_RCVUNL 0x1f /* 0x80000000 releasing rcv lock w/o wakeup */
793: /* trace points beyond 31 are unconditional */
794: #define NFSTRC_GA_INV2 0x20 /* nfs_getattr invalidate - error# */
795: #define NFSTRC_MTR_BZER 0x30 /* mapfs_trunc safe_bzero error - vp... */
796: #define NFSTRC_MIO_RINV 0x40 /* mapfs_io Read INValidating */
797: #define NFSTRC_CONTINUE 0xff /* continuation record for previous entry */
798:
799: #define NFSTRACEX(a1, a2, a3, a4) \
800: ( \
801: nfstracebuf[nfstraceindx].i1 = (uint)(a1), \
802: nfstracebuf[nfstraceindx].i2 = (uint)(a2), \
803: nfstracebuf[nfstraceindx].i3 = (uint)(a3), \
804: nfstracebuf[nfstraceindx].i4 = (uint)(a4), \
805: nfstraceindx = (nfstraceindx + 1) % NFSTBUFSIZ, \
806: 1 \
807: )
808:
809: #define NFSTRACE(cnst, fptr) \
810: ( \
811: ((cnst) > 31 || nfstracemask & 1<<(cnst)) ? \
812: NFSTRACEX((cnst), (fptr), current_thread(), \
813: clock_get_system_value().tv_nsec) : \
814: 0 \
815: )
816:
817: #define NFSTRACE4(cnst, fptr, a2, a3, a4) \
818: ( \
819: NFSTRACE(cnst,fptr) ? \
820: NFSTRACEX(NFSTRC_CONTINUE, a2, a3, a4) : \
821: 0 \
822: )
823:
824: #else /* DIAGNOSTIC */
825:
826: #define NFSTRACE(cnst, fptr)
827: #define NFSTRACE4(cnst, fptr, a2, a3, a4)
828:
829: #endif /* DIAGNOSTIC */
830:
831: #endif /* KERNEL */
832:
833: #endif
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