summaryrefslogtreecommitdiffstats
path: root/contrib/tcpdump/nfs.h
blob: 0887148dad13cc38041d9405e9113ba40ecdc2a3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
/*	$NetBSD: nfs.h,v 1.1 1996/05/23 22:49:53 fvdl Exp $	*/

/*
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 *	@(#)nfsproto.h	8.2 (Berkeley) 3/30/95
 */

/*
 * nfs definitions as per the Version 2 and 3 specs
 */

/*
 * Constants as defined in the Sun NFS Version 2 and 3 specs.
 * "NFS: Network File System Protocol Specification" RFC1094
 * and in the "NFS: Network File System Version 3 Protocol
 * Specification"
 */

#define NFS_PORT	2049
#define	NFS_PROG	100003
#define NFS_VER2	2
#define	NFS_VER3	3
#define NFS_V2MAXDATA	8192
#define	NFS_MAXDGRAMDATA 16384
#define	NFS_MAXDATA	32768
#define	NFS_MAXPATHLEN	1024
#define	NFS_MAXNAMLEN	255
#define	NFS_MAXPKTHDR	404
#define NFS_MAXPACKET	(NFS_MAXPKTHDR + NFS_MAXDATA)
#define	NFS_MINPACKET	20
#define	NFS_FABLKSIZE	512	/* Size in bytes of a block wrt fa_blocks */

/* Stat numbers for rpc returns (version 2 and 3) */
#define	NFS_OK			0
#define	NFSERR_PERM		1
#define	NFSERR_NOENT		2
#define	NFSERR_IO		5
#define	NFSERR_NXIO		6
#define	NFSERR_ACCES		13
#define	NFSERR_EXIST		17
#define	NFSERR_XDEV		18	/* Version 3 only */
#define	NFSERR_NODEV		19
#define	NFSERR_NOTDIR		20
#define	NFSERR_ISDIR		21
#define	NFSERR_INVAL		22	/* Version 3 only */
#define	NFSERR_FBIG		27
#define	NFSERR_NOSPC		28
#define	NFSERR_ROFS		30
#define	NFSERR_MLINK		31	/* Version 3 only */
#define	NFSERR_NAMETOL		63
#define	NFSERR_NOTEMPTY		66
#define	NFSERR_DQUOT		69
#define	NFSERR_STALE		70
#define	NFSERR_REMOTE		71	/* Version 3 only */
#define	NFSERR_WFLUSH		99	/* Version 2 only */
#define	NFSERR_BADHANDLE	10001	/* The rest Version 3 only */
#define	NFSERR_NOT_SYNC		10002
#define	NFSERR_BAD_COOKIE	10003
#define	NFSERR_NOTSUPP		10004
#define	NFSERR_TOOSMALL		10005
#define	NFSERR_SERVERFAULT	10006
#define	NFSERR_BADTYPE		10007
#define	NFSERR_JUKEBOX		10008
#define NFSERR_TRYLATER		NFSERR_JUKEBOX
#define	NFSERR_STALEWRITEVERF	30001	/* Fake return for nfs_commit() */

#define NFSERR_RETVOID		0x20000000 /* Return void, not error */
#define NFSERR_AUTHERR		0x40000000 /* Mark an authentication error */
#define NFSERR_RETERR		0x80000000 /* Mark an error return for V3 */

/* Sizes in bytes of various nfs rpc components */
#define	NFSX_UNSIGNED	4

/* specific to NFS Version 2 */
#define	NFSX_V2FH	32
#define	NFSX_V2FATTR	68
#define	NFSX_V2SATTR	32
#define	NFSX_V2COOKIE	4
#define NFSX_V2STATFS	20

/* specific to NFS Version 3 */
#if 0
#define NFSX_V3FH		(sizeof (fhandle_t)) /* size this server uses */
#endif
#define	NFSX_V3FHMAX		64	/* max. allowed by protocol */
#define NFSX_V3FATTR		84
#define NFSX_V3SATTR		60	/* max. all fields filled in */
#define NFSX_V3SRVSATTR		(sizeof (struct nfsv3_sattr))
#define NFSX_V3POSTOPATTR	(NFSX_V3FATTR + NFSX_UNSIGNED)
#define NFSX_V3WCCDATA		(NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)
#define NFSX_V3COOKIEVERF 	8
#define NFSX_V3WRITEVERF 	8
#define NFSX_V3CREATEVERF	8
#define NFSX_V3STATFS		52
#define NFSX_V3FSINFO		48
#define NFSX_V3PATHCONF		24

/* variants for both versions */
#define NFSX_FH(v3)		((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \
					NFSX_V2FH)
#define NFSX_SRVFH(v3)		((v3) ? NFSX_V3FH : NFSX_V2FH)
#define	NFSX_FATTR(v3)		((v3) ? NFSX_V3FATTR : NFSX_V2FATTR)
#define NFSX_PREOPATTR(v3)	((v3) ? (7 * NFSX_UNSIGNED) : 0)
#define NFSX_POSTOPATTR(v3)	((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0)
#define NFSX_POSTOPORFATTR(v3)	((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \
					NFSX_V2FATTR)
#define NFSX_WCCDATA(v3)	((v3) ? NFSX_V3WCCDATA : 0)
#define NFSX_WCCORFATTR(v3)	((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR)
#define	NFSX_SATTR(v3)		((v3) ? NFSX_V3SATTR : NFSX_V2SATTR)
#define	NFSX_COOKIEVERF(v3)	((v3) ? NFSX_V3COOKIEVERF : 0)
#define	NFSX_WRITEVERF(v3)	((v3) ? NFSX_V3WRITEVERF : 0)
#define NFSX_READDIR(v3)	((v3) ? (5 * NFSX_UNSIGNED) : \
					(2 * NFSX_UNSIGNED))
#define	NFSX_STATFS(v3)		((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)

/* nfs rpc procedure numbers (before version mapping) */
#define	NFSPROC_NULL		0
#define	NFSPROC_GETATTR		1
#define	NFSPROC_SETATTR		2
#define	NFSPROC_LOOKUP		3
#define	NFSPROC_ACCESS		4
#define	NFSPROC_READLINK	5
#define	NFSPROC_READ		6
#define	NFSPROC_WRITE		7
#define	NFSPROC_CREATE		8
#define	NFSPROC_MKDIR		9
#define	NFSPROC_SYMLINK		10
#define	NFSPROC_MKNOD		11
#define	NFSPROC_REMOVE		12
#define	NFSPROC_RMDIR		13
#define	NFSPROC_RENAME		14
#define	NFSPROC_LINK		15
#define	NFSPROC_READDIR		16
#define	NFSPROC_READDIRPLUS	17
#define	NFSPROC_FSSTAT		18
#define	NFSPROC_FSINFO		19
#define	NFSPROC_PATHCONF	20
#define	NFSPROC_COMMIT		21

/* And leasing (nqnfs) procedure numbers (must be last) */
#define	NQNFSPROC_GETLEASE	22
#define	NQNFSPROC_VACATED	23
#define	NQNFSPROC_EVICTED	24

#define NFSPROC_NOOP		25
#define	NFS_NPROCS		26

/* Actual Version 2 procedure numbers */
#define	NFSV2PROC_NULL		0
#define	NFSV2PROC_GETATTR	1
#define	NFSV2PROC_SETATTR	2
#define	NFSV2PROC_NOOP		3
#define	NFSV2PROC_ROOT		NFSV2PROC_NOOP	/* Obsolete */
#define	NFSV2PROC_LOOKUP	4
#define	NFSV2PROC_READLINK	5
#define	NFSV2PROC_READ		6
#define	NFSV2PROC_WRITECACHE	NFSV2PROC_NOOP	/* Obsolete */
#define	NFSV2PROC_WRITE		8
#define	NFSV2PROC_CREATE	9
#define	NFSV2PROC_REMOVE	10
#define	NFSV2PROC_RENAME	11
#define	NFSV2PROC_LINK		12
#define	NFSV2PROC_SYMLINK	13
#define	NFSV2PROC_MKDIR		14
#define	NFSV2PROC_RMDIR		15
#define	NFSV2PROC_READDIR	16
#define	NFSV2PROC_STATFS	17

/*
 * Constants used by the Version 3 protocol for various RPCs
 */
#define NFSV3SATTRTIME_DONTCHANGE	0
#define NFSV3SATTRTIME_TOSERVER		1
#define NFSV3SATTRTIME_TOCLIENT		2

#define NFSV3ATTRTIME_NMODES		3

#define NFSV3ACCESS_READ		0x01
#define NFSV3ACCESS_LOOKUP		0x02
#define NFSV3ACCESS_MODIFY		0x04
#define NFSV3ACCESS_EXTEND		0x08
#define NFSV3ACCESS_DELETE		0x10
#define NFSV3ACCESS_EXECUTE		0x20

#define NFSV3WRITE_UNSTABLE		0
#define NFSV3WRITE_DATASYNC		1
#define NFSV3WRITE_FILESYNC		2

#define NFSV3WRITE_NMODES		3

#define NFSV3CREATE_UNCHECKED		0
#define NFSV3CREATE_GUARDED		1
#define NFSV3CREATE_EXCLUSIVE		2

#define NFSV3CREATE_NMODES		3

#define NFSV3FSINFO_LINK		0x01
#define NFSV3FSINFO_SYMLINK		0x02
#define NFSV3FSINFO_HOMOGENEOUS		0x08
#define NFSV3FSINFO_CANSETTIME		0x10

/* Conversion macros */
#define	vtonfsv2_mode(t,m) \
		txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
				MAKEIMODE((t), (m)))
#define vtonfsv3_mode(m)	txdr_unsigned((m) & 07777)
#define	nfstov_mode(a)		(fxdr_unsigned(u_int16_t, (a))&07777)
#define	vtonfsv2_type(a)	txdr_unsigned(nfsv2_type[((int32_t)(a))])
#define	vtonfsv3_type(a)	txdr_unsigned(nfsv3_type[((int32_t)(a))])
#define	nfsv2tov_type(a)	nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
#define	nfsv3tov_type(a)	nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]

/* File types */
typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,
	NFSOCK=6, NFFIFO=7 } nfstype;

/* Structs for common parts of the rpc's */
/*
 * File Handle (32 bytes for version 2), variable up to 64 for version 3.
 * File Handles of up to NFS_SMALLFH in size are stored directly in the
 * nfs node, whereas larger ones are malloc'd. (This never happens when
 * NFS_SMALLFH is set to 64.)
 * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4.
 */
#ifndef NFS_SMALLFH
#define NFS_SMALLFH	64
#endif
union nfsfh {
/*	fhandle_t fh_generic; */
	u_char    fh_bytes[NFS_SMALLFH];
};
typedef union nfsfh nfsfh_t;

struct nfsv2_time {
	u_int32_t nfsv2_sec;
	u_int32_t nfsv2_usec;
};
typedef struct nfsv2_time	nfstime2;

struct nfsv3_time {
	u_int32_t nfsv3_sec;
	u_int32_t nfsv3_nsec;
};
typedef struct nfsv3_time	nfstime3;

/*
 * Quads are defined as arrays of 2 longs to ensure dense packing for the
 * protocol and to facilitate xdr conversion.
 */
struct nfs_uquad {
	u_int32_t nfsuquad[2];
};
typedef	struct nfs_uquad	nfsuint64;

#if 0 /* XXX - this doesn't seemed to be used and it doesn't work
       * with non-gcc, so comment it out for now.
       */

/*
 * Used to convert between two u_longs and a u_quad_t.
 */
union nfs_quadconvert {
	u_int32_t lval[2];
	u_quad_t  qval;
};
typedef union nfs_quadconvert	nfsquad_t;

#endif

/*
 * NFS Version 3 special file number.
 */
struct nfsv3_spec {
	u_int32_t specdata1;
	u_int32_t specdata2;
};
typedef	struct nfsv3_spec	nfsv3spec;

/*
 * File attributes and setable attributes. These structures cover both
 * NFS version 2 and the version 3 protocol. Note that the union is only
 * used so that one pointer can refer to both variants. These structures
 * go out on the wire and must be densely packed, so no quad data types
 * are used. (all fields are longs or u_longs or structures of same)
 * NB: You can't do sizeof(struct nfs_fattr), you must use the
 *     NFSX_FATTR(v3) macro.
 */
struct nfs_fattr {
	u_int32_t fa_type;
	u_int32_t fa_mode;
	u_int32_t fa_nlink;
	u_int32_t fa_uid;
	u_int32_t fa_gid;
	union {
		struct {
			u_int32_t nfsv2fa_size;
			u_int32_t nfsv2fa_blocksize;
			u_int32_t nfsv2fa_rdev;
			u_int32_t nfsv2fa_blocks;
			u_int32_t nfsv2fa_fsid;
			u_int32_t nfsv2fa_fileid;
			nfstime2  nfsv2fa_atime;
			nfstime2  nfsv2fa_mtime;
			nfstime2  nfsv2fa_ctime;
		} fa_nfsv2;
		struct {
			nfsuint64 nfsv3fa_size;
			nfsuint64 nfsv3fa_used;
			nfsv3spec nfsv3fa_rdev;
			nfsuint64 nfsv3fa_fsid;
			nfsuint64 nfsv3fa_fileid;
			nfstime3  nfsv3fa_atime;
			nfstime3  nfsv3fa_mtime;
			nfstime3  nfsv3fa_ctime;
		} fa_nfsv3;
	} fa_un;
};

/* and some ugly defines for accessing union components */
#define	fa2_size		fa_un.fa_nfsv2.nfsv2fa_size
#define	fa2_blocksize		fa_un.fa_nfsv2.nfsv2fa_blocksize
#define	fa2_rdev		fa_un.fa_nfsv2.nfsv2fa_rdev
#define	fa2_blocks		fa_un.fa_nfsv2.nfsv2fa_blocks
#define	fa2_fsid		fa_un.fa_nfsv2.nfsv2fa_fsid
#define	fa2_fileid		fa_un.fa_nfsv2.nfsv2fa_fileid
#define	fa2_atime		fa_un.fa_nfsv2.nfsv2fa_atime
#define	fa2_mtime		fa_un.fa_nfsv2.nfsv2fa_mtime
#define	fa2_ctime		fa_un.fa_nfsv2.nfsv2fa_ctime
#define	fa3_size		fa_un.fa_nfsv3.nfsv3fa_size
#define	fa3_used		fa_un.fa_nfsv3.nfsv3fa_used
#define	fa3_rdev		fa_un.fa_nfsv3.nfsv3fa_rdev
#define	fa3_fsid		fa_un.fa_nfsv3.nfsv3fa_fsid
#define	fa3_fileid		fa_un.fa_nfsv3.nfsv3fa_fileid
#define	fa3_atime		fa_un.fa_nfsv3.nfsv3fa_atime
#define	fa3_mtime		fa_un.fa_nfsv3.nfsv3fa_mtime
#define	fa3_ctime		fa_un.fa_nfsv3.nfsv3fa_ctime

struct nfsv2_sattr {
	u_int32_t sa_mode;
	u_int32_t sa_uid;
	u_int32_t sa_gid;
	u_int32_t sa_size;
	nfstime2  sa_atime;
	nfstime2  sa_mtime;
};

/*
 * NFS Version 3 sattr structure for the new node creation case.
 */
struct nfsv3_sattr {
	u_int32_t   sa_modeset;
	u_int32_t   sa_mode;
	u_int32_t   sa_uidset;
	u_int32_t   sa_uid;
	u_int32_t   sa_gidset;
	u_int32_t   sa_gid;
	u_int32_t   sa_sizeset;
	u_int32_t   sa_size;
	u_int32_t   sa_atimetype;
	nfstime3  sa_atime;
	u_int32_t   sa_mtimetype;
	nfstime3  sa_mtime;
};

struct nfs_statfs {
	union {
		struct {
			u_int32_t nfsv2sf_tsize;
			u_int32_t nfsv2sf_bsize;
			u_int32_t nfsv2sf_blocks;
			u_int32_t nfsv2sf_bfree;
			u_int32_t nfsv2sf_bavail;
		} sf_nfsv2;
		struct {
			nfsuint64 nfsv3sf_tbytes;
			nfsuint64 nfsv3sf_fbytes;
			nfsuint64 nfsv3sf_abytes;
			nfsuint64 nfsv3sf_tfiles;
			nfsuint64 nfsv3sf_ffiles;
			nfsuint64 nfsv3sf_afiles;
			u_int32_t nfsv3sf_invarsec;
		} sf_nfsv3;
	} sf_un;
};

#define sf_tsize	sf_un.sf_nfsv2.nfsv2sf_tsize
#define sf_bsize	sf_un.sf_nfsv2.nfsv2sf_bsize
#define sf_blocks	sf_un.sf_nfsv2.nfsv2sf_blocks
#define sf_bfree	sf_un.sf_nfsv2.nfsv2sf_bfree
#define sf_bavail	sf_un.sf_nfsv2.nfsv2sf_bavail
#define sf_tbytes	sf_un.sf_nfsv3.nfsv3sf_tbytes
#define sf_fbytes	sf_un.sf_nfsv3.nfsv3sf_fbytes
#define sf_abytes	sf_un.sf_nfsv3.nfsv3sf_abytes
#define sf_tfiles	sf_un.sf_nfsv3.nfsv3sf_tfiles
#define sf_ffiles	sf_un.sf_nfsv3.nfsv3sf_ffiles
#define sf_afiles	sf_un.sf_nfsv3.nfsv3sf_afiles
#define sf_invarsec	sf_un.sf_nfsv3.nfsv3sf_invarsec

struct nfsv3_fsinfo {
	u_int32_t fs_rtmax;
	u_int32_t fs_rtpref;
	u_int32_t fs_rtmult;
	u_int32_t fs_wtmax;
	u_int32_t fs_wtpref;
	u_int32_t fs_wtmult;
	u_int32_t fs_dtpref;
	nfsuint64 fs_maxfilesize;
	nfstime3  fs_timedelta;
	u_int32_t fs_properties;
};

struct nfsv3_pathconf {
	u_int32_t pc_linkmax;
	u_int32_t pc_namemax;
	u_int32_t pc_notrunc;
	u_int32_t pc_chownrestricted;
	u_int32_t pc_caseinsensitive;
	u_int32_t pc_casepreserving;
};
OpenPOWER on IntegriCloud