2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009 Rick Macklem, University of Guelph
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #ifndef _NFS_NFSCLSTATE_H_
32 #define _NFS_NFSCLSTATE_H_
35 * Definitions for NFS V4 client state handling.
37 LIST_HEAD(nfsclopenhead, nfsclopen);
38 LIST_HEAD(nfscllockownerhead, nfscllockowner);
39 SLIST_HEAD(nfscllockownerfhhead, nfscllockownerfh);
40 LIST_HEAD(nfscllockhead, nfscllock);
41 LIST_HEAD(nfsclhead, nfsclclient);
42 LIST_HEAD(nfsclownerhead, nfsclowner);
43 TAILQ_HEAD(nfscldeleghead, nfscldeleg);
44 LIST_HEAD(nfscldeleghash, nfscldeleg);
45 LIST_HEAD(nfsclopenhash, nfsclopen);
46 TAILQ_HEAD(nfscllayouthead, nfscllayout);
47 LIST_HEAD(nfscllayouthash, nfscllayout);
48 LIST_HEAD(nfsclflayouthead, nfsclflayout);
49 LIST_HEAD(nfscldevinfohead, nfscldevinfo);
50 LIST_HEAD(nfsclrecalllayouthead, nfsclrecalllayout);
51 #define NFSCLDELEGHASHSIZE 256
52 #define NFSCLDELEGHASH(c, f, l) \
53 (&((c)->nfsc_deleghash[ncl_hash((f), (l)) % NFSCLDELEGHASHSIZE]))
54 #define NFSCLOPENHASHSIZE 256
55 #define NFSCLOPENHASHFUNC(f, l) (ncl_hash((f), (l)) % NFSCLOPENHASHSIZE)
56 #define NFSCLOPENHASH(c, f, l) \
57 (&((c)->nfsc_openhash[NFSCLOPENHASHFUNC((f), (l))]))
58 #define NFSCLLAYOUTHASHSIZE 256
59 #define NFSCLLAYOUTHASH(c, f, l) \
60 (&((c)->nfsc_layouthash[ncl_hash((f), (l)) % NFSCLLAYOUTHASHSIZE]))
62 /* Structure for NFSv4.1 session stuff. */
64 struct mtx nfsess_mtx;
65 struct nfsslot nfsess_cbslots[NFSV4_CBSLOTS];
66 nfsquad_t nfsess_clientid;
67 SVCXPRT *nfsess_xprt; /* For backchannel callback */
68 uint32_t nfsess_slotseq[64]; /* Max for 64bit nm_slots */
69 uint64_t nfsess_slots;
70 uint32_t nfsess_sequenceid;
71 uint32_t nfsess_maxcache; /* Max size for cached reply. */
72 uint32_t nfsess_maxreq; /* Max request size. */
73 uint32_t nfsess_maxresp; /* Max reply size. */
74 uint16_t nfsess_foreslots;
75 uint16_t nfsess_backslots;
76 uint8_t nfsess_sessionid[NFSX_V4SESSIONID];
77 uint8_t nfsess_defunct; /* Non-zero for old sessions */
81 * This structure holds the session, clientid and related information
82 * needed for an NFSv4.1 or NFSv4.2 Meta Data Server (MDS) or Data Server (DS).
83 * It is malloc'd to the correct length.
86 TAILQ_ENTRY(nfsclds) nfsclds_list;
87 struct nfsclsession nfsclds_sess;
88 struct mtx nfsclds_mtx;
89 struct nfssockreq *nfsclds_sockp;
90 time_t nfsclds_expire;
91 uint16_t nfsclds_flags;
92 uint16_t nfsclds_servownlen;
93 uint8_t nfsclds_verf[NFSX_VERF];
94 uint8_t nfsclds_serverown[0];
98 * Flags for nfsclds_flags.
100 #define NFSCLDS_HASWRITEVERF 0x0001
101 #define NFSCLDS_MDS 0x0002
102 #define NFSCLDS_DS 0x0004
103 #define NFSCLDS_CLOSED 0x0008
104 #define NFSCLDS_SAMECONN 0x0010
105 #define NFSCLDS_MINORV2 0x0020
108 LIST_ENTRY(nfsclclient) nfsc_list;
109 struct nfsclownerhead nfsc_owner;
110 struct nfscldeleghead nfsc_deleg;
111 struct nfscldeleghash nfsc_deleghash[NFSCLDELEGHASHSIZE];
112 struct nfsclopenhash nfsc_openhash[NFSCLOPENHASHSIZE];
113 struct nfscllayouthead nfsc_layout;
114 struct nfscllayouthash nfsc_layouthash[NFSCLLAYOUTHASHSIZE];
115 struct nfscldevinfohead nfsc_devinfo;
116 struct nfsv4lock nfsc_lock;
117 struct proc *nfsc_renewthread;
118 struct nfsmount *nfsc_nmp;
120 u_int32_t nfsc_clientidrev;
122 u_int32_t nfsc_renew;
123 u_int32_t nfsc_cbident;
124 u_int16_t nfsc_flags;
125 u_int16_t nfsc_idlen;
126 u_int8_t nfsc_id[1]; /* Malloc'd to correct length */
130 * Bits for nfsc_flags.
132 #define NFSCLFLAGS_INITED 0x0001
133 #define NFSCLFLAGS_HASCLIENTID 0x0002
134 #define NFSCLFLAGS_RECOVER 0x0004
135 #define NFSCLFLAGS_UMOUNT 0x0008
136 #define NFSCLFLAGS_HASTHREAD 0x0010
137 #define NFSCLFLAGS_AFINET6 0x0020
138 #define NFSCLFLAGS_EXPIREIT 0x0040
139 #define NFSCLFLAGS_FIRSTDELEG 0x0080
140 #define NFSCLFLAGS_GOTDELEG 0x0100
141 #define NFSCLFLAGS_RECVRINPROG 0x0200
144 LIST_ENTRY(nfsclowner) nfsow_list;
145 struct nfsclopenhead nfsow_open;
146 struct nfsclclient *nfsow_clp;
147 u_int32_t nfsow_seqid;
148 u_int32_t nfsow_defunct;
149 struct nfsv4lock nfsow_rwlock;
150 u_int8_t nfsow_owner[NFSV4CL_LOCKNAMELEN];
154 * MALLOC'd to the correct length to accommodate the file handle.
157 TAILQ_ENTRY(nfscldeleg) nfsdl_list;
158 LIST_ENTRY(nfscldeleg) nfsdl_hash;
159 struct nfsclownerhead nfsdl_owner; /* locally issued state */
160 struct nfscllockownerhead nfsdl_lock;
161 nfsv4stateid_t nfsdl_stateid;
162 struct acl_entry nfsdl_ace; /* Delegation ace */
163 struct nfsclclient *nfsdl_clp;
164 struct nfsv4lock nfsdl_rwlock; /* for active I/O ops */
165 struct nfscred nfsdl_cred; /* Cred. used for Open */
166 time_t nfsdl_timestamp; /* used for stale cleanup */
167 u_int64_t nfsdl_sizelimit; /* Limit for file growth */
168 u_int64_t nfsdl_size; /* saved copy of file size */
169 u_int64_t nfsdl_change; /* and change attribute */
170 struct timespec nfsdl_modtime; /* local modify time */
171 u_int16_t nfsdl_fhlen;
172 u_int8_t nfsdl_flags;
173 u_int8_t nfsdl_fh[1]; /* must be last */
179 #define NFSCLDL_READ 0x01
180 #define NFSCLDL_WRITE 0x02
181 #define NFSCLDL_RECALL 0x04
182 #define NFSCLDL_NEEDRECLAIM 0x08
183 #define NFSCLDL_ZAPPED 0x10
184 #define NFSCLDL_MODTIMESET 0x20
185 #define NFSCLDL_DELEGRET 0x40
188 * MALLOC'd to the correct length to accommodate the file handle.
191 LIST_ENTRY(nfsclopen) nfso_list;
192 LIST_ENTRY(nfsclopen) nfso_hash;
193 struct nfscllockownerhead nfso_lock;
194 nfsv4stateid_t nfso_stateid;
195 struct nfsclowner *nfso_own;
196 struct nfscred nfso_cred; /* Cred. used for Open */
198 u_int32_t nfso_opencnt;
199 u_int16_t nfso_fhlen;
200 u_int8_t nfso_posixlock; /* 1 for POSIX type locking */
201 u_int8_t nfso_fh[1]; /* must be last */
205 * Return values for nfscl_open(). NFSCLOPEN_OK must == 0.
207 #define NFSCLOPEN_OK 0
208 #define NFSCLOPEN_DOOPEN 1
209 #define NFSCLOPEN_DOOPENDOWNGRADE 2
210 #define NFSCLOPEN_SETCRED 3
212 struct nfscllockowner {
213 LIST_ENTRY(nfscllockowner) nfsl_list;
214 struct nfscllockhead nfsl_lock;
215 struct nfsclopen *nfsl_open;
216 NFSPROC_T *nfsl_inprog;
217 nfsv4stateid_t nfsl_stateid;
219 u_int32_t nfsl_seqid;
220 struct nfsv4lock nfsl_rwlock;
221 u_int8_t nfsl_owner[NFSV4CL_LOCKNAMELEN];
222 u_int8_t nfsl_openowner[NFSV4CL_LOCKNAMELEN];
226 * Byte range entry for the above lock owner.
229 LIST_ENTRY(nfscllock) nfslo_list;
230 u_int64_t nfslo_first;
235 /* This structure is used to collect a list of lockowners to free up. */
236 struct nfscllockownerfh {
237 SLIST_ENTRY(nfscllockownerfh) nfslfh_list;
238 struct nfscllockownerhead nfslfh_lock;
240 uint8_t nfslfh_fh[NFSX_V4FHMAX];
244 * MALLOC'd to the correct length to accommodate the file handle.
247 TAILQ_ENTRY(nfscllayout) nfsly_list;
248 LIST_ENTRY(nfscllayout) nfsly_hash;
249 nfsv4stateid_t nfsly_stateid;
250 struct nfsv4lock nfsly_lock;
251 uint64_t nfsly_filesid[2];
252 uint64_t nfsly_lastbyte;
253 struct nfsclflayouthead nfsly_flayread;
254 struct nfsclflayouthead nfsly_flayrw;
255 struct nfsclrecalllayouthead nfsly_recall;
256 time_t nfsly_timestamp;
257 struct nfsclclient *nfsly_clp;
258 uint16_t nfsly_flags;
259 uint16_t nfsly_fhlen;
264 * Flags for nfsly_flags.
266 #define NFSLY_FILES 0x0001
267 #define NFSLY_BLOCK 0x0002
268 #define NFSLY_OBJECT 0x0004
269 #define NFSLY_RECALL 0x0008
270 #define NFSLY_RECALLFILE 0x0010
271 #define NFSLY_RECALLFSID 0x0020
272 #define NFSLY_RECALLALL 0x0040
273 #define NFSLY_RETONCLOSE 0x0080
274 #define NFSLY_WRITTEN 0x0100 /* Has been used to write to a DS. */
275 #define NFSLY_FLEXFILE 0x0200
278 * Flex file layout mirror specific stuff for nfsclflayout.
282 struct nfscldevinfo *devp;
283 char dev[NFSX_V4DEVICEID];
287 struct nfsfh *fh[NFSDEV_MAXVERS];
292 * MALLOC'd to the correct length to accommodate the file handle list for File
293 * layout and the list of mirrors for the Flex File Layout.
294 * These hang off of nfsly_flayread and nfsly_flayrw, sorted in increasing
296 * The nfsly_flayread list holds the ones with iomode == NFSLAYOUTIOMODE_READ,
297 * whereas the nfsly_flayrw holds the ones with iomode == NFSLAYOUTIOMODE_RW.
299 struct nfsclflayout {
300 LIST_ENTRY(nfsclflayout) nfsfl_list;
303 uint32_t nfsfl_iomode;
304 uint16_t nfsfl_flags;
310 uint8_t dev[NFSX_V4DEVICEID];
312 struct nfscldevinfo *devp;
322 struct nfsfh *fh[0]; /* FH list for DS File layout */
323 struct nfsffm ffm[0]; /* Mirror list for Flex File */
324 } nfsfl_un2; /* Must be last. Malloc'd to correct array length */
326 #define nfsfl_patoff nfsfl_un.fl.patoff
327 #define nfsfl_util nfsfl_un.fl.util
328 #define nfsfl_stripe1 nfsfl_un.fl.stripe1
329 #define nfsfl_dev nfsfl_un.fl.dev
330 #define nfsfl_fhcnt nfsfl_un.fl.fhcnt
331 #define nfsfl_devp nfsfl_un.fl.devp
332 #define nfsfl_stripeunit nfsfl_un.ff.stripeunit
333 #define nfsfl_fflags nfsfl_un.ff.fflags
334 #define nfsfl_statshint nfsfl_un.ff.statshint
335 #define nfsfl_mirrorcnt nfsfl_un.ff.mirrorcnt
336 #define nfsfl_fh nfsfl_un2.fh
337 #define nfsfl_ffm nfsfl_un2.ffm
340 * Flags for nfsfl_flags.
342 #define NFSFL_RECALL 0x0001 /* File layout has been recalled */
343 #define NFSFL_FILE 0x0002 /* File layout */
344 #define NFSFL_FLEXFILE 0x0004 /* Flex File layout */
347 * Structure that is used to store a LAYOUTRECALL.
349 struct nfsclrecalllayout {
350 LIST_ENTRY(nfsclrecalllayout) nfsrecly_list;
351 uint64_t nfsrecly_off;
352 uint64_t nfsrecly_len;
353 int nfsrecly_recalltype;
354 uint32_t nfsrecly_iomode;
355 uint32_t nfsrecly_stateseqid;
356 uint32_t nfsrecly_stat;
357 uint32_t nfsrecly_op;
358 char nfsrecly_devid[NFSX_V4DEVICEID];
362 * Stores the NFSv4.1 Device Info. Malloc'd to the correct length to
363 * store the list of network connections and list of indices.
364 * nfsdi_data[] is allocated the following way:
365 * - nfsdi_addrcnt * struct nfsclds
366 * - stripe indices, each stored as one byte, since there can be many
367 * of them. (This implies a limit of 256 on nfsdi_addrcnt, since the
368 * indices select which address.)
369 * For Flex File, the addrcnt is always one and no stripe indices exist.
371 struct nfscldevinfo {
372 LIST_ENTRY(nfscldevinfo) nfsdi_list;
373 uint8_t nfsdi_deviceid[NFSX_V4DEVICEID];
374 struct nfsclclient *nfsdi_clp;
375 uint32_t nfsdi_refcnt;
376 uint32_t nfsdi_layoutrefs;
389 uint16_t nfsdi_addrcnt;
390 uint16_t nfsdi_flags;
391 struct nfsclds *nfsdi_data[0];
393 #define nfsdi_stripecnt nfsdi_un.fl.stripecnt
394 #define nfsdi_versindex nfsdi_un.ff.versindex
395 #define nfsdi_vers nfsdi_un.ff.vers
396 #define nfsdi_minorvers nfsdi_un.ff.minorvers
397 #define nfsdi_rsize nfsdi_un.ff.rsize
398 #define nfsdi_wsize nfsdi_un.ff.wsize
400 /* Flags for nfsdi_flags. */
401 #define NFSDI_FILELAYOUT 0x0001
402 #define NFSDI_FLEXFILE 0x0002
403 #define NFSDI_TIGHTCOUPLED 0X0004
405 /* These inline functions return values from nfsdi_data[]. */
407 * Return a pointer to the address at "pos".
409 static __inline struct nfsclds **
410 nfsfldi_addr(struct nfscldevinfo *ndi, int pos)
413 if (pos >= ndi->nfsdi_addrcnt)
415 return (&ndi->nfsdi_data[pos]);
419 * Return the Nth ("pos") stripe index.
422 nfsfldi_stripeindex(struct nfscldevinfo *ndi, int pos)
426 if (pos >= ndi->nfsdi_stripecnt)
428 valp = (uint8_t *)&ndi->nfsdi_data[ndi->nfsdi_addrcnt];
434 * Set the Nth ("pos") stripe index to "val".
437 nfsfldi_setstripeindex(struct nfscldevinfo *ndi, int pos, uint8_t val)
441 if (pos >= ndi->nfsdi_stripecnt)
443 valp = (uint8_t *)&ndi->nfsdi_data[ndi->nfsdi_addrcnt];
449 * Macro for incrementing the seqid#.
451 #define NFSCL_INCRSEQID(s, n) do { \
452 if (((n)->nd_flag & ND_INCRSEQID)) \
456 #endif /* _NFS_NFSCLSTATE_H_ */