1/*
2 * Copyright (c) 2000-2015 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1989, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * This code is derived from software contributed to Berkeley by
34 * Rick Macklem at The University of Guelph.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95
65 * FreeBSD-Id: nfsmount.h,v 1.13 1997/08/16 19:16:05 wollman Exp $
66 */
67
68
69#ifndef _NFS_NFSMOUNT_H_
70#define _NFS_NFSMOUNT_H_
71
72#include <sys/appleapiopts.h>
73
74#ifdef __APPLE_API_PRIVATE
75
76/*
77 * NFS mount file system attributes
78 */
79struct nfs_fsattr {
80 uint32_t nfsa_flags; /* file system flags */
81 uint32_t nfsa_lease; /* lease time in seconds */
82 uint32_t nfsa_maxname; /* maximum filename size */
83 uint32_t nfsa_maxlink; /* maximum # links */
84 uint32_t nfsa_bsize; /* block size */
85 uint32_t nfsa_pad; /* UNUSED */
86 uint64_t nfsa_maxfilesize; /* maximum file size */
87 uint64_t nfsa_maxread; /* maximum read size */
88 uint64_t nfsa_maxwrite; /* maximum write size */
89 uint64_t nfsa_files_avail; /* file slots available */
90 uint64_t nfsa_files_free; /* file slots free */
91 uint64_t nfsa_files_total; /* file slots total */
92 uint64_t nfsa_space_avail; /* disk space available */
93 uint64_t nfsa_space_free; /* disk space free */
94 uint64_t nfsa_space_total; /* disk space total */
95 uint32_t nfsa_supp_attr[NFS_ATTR_BITMAP_LEN]; /* attributes supported on this file system */
96 uint32_t nfsa_bitmap[NFS_ATTR_BITMAP_LEN]; /* valid attributes */
97};
98#define NFS_FSFLAG_LINK 0x00000001
99#define NFS_FSFLAG_SYMLINK 0x00000002
100#define NFS_FSFLAG_UNIQUE_FH 0x00000004
101#define NFS_FSFLAG_ACL 0x00000008
102#define NFS_FSFLAG_SET_TIME 0x00000010
103#define NFS_FSFLAG_CASE_INSENSITIVE 0x00000020
104#define NFS_FSFLAG_CASE_PRESERVING 0x00000040
105#define NFS_FSFLAG_CHOWN_RESTRICTED 0x00000080
106#define NFS_FSFLAG_HOMOGENEOUS 0x00000100
107#define NFS_FSFLAG_NO_TRUNC 0x00000200
108#define NFS_FSFLAG_NAMED_ATTR 0x00000400
109#define NFS_FSFLAG_FHTYPE_MASK 0xFF000000
110#define NFS_FSFLAG_FHTYPE_SHIFT 24
111
112/*
113 * NFS file system location structures
114 */
115struct nfs_fs_server {
116 char * ns_name; /* name of server */
117 char ** ns_addresses; /* array of addresses for server */
118 uint32_t ns_addrcount; /* # of addresses */
119};
120struct nfs_fs_path {
121 char ** np_components; /* array of component pointers */
122 uint32_t np_compcount; /* # components in path */
123};
124struct nfs_fs_location {
125 struct nfs_fs_server ** nl_servers; /* array of server pointers */
126 struct nfs_fs_path nl_path; /* file system path */
127 uint32_t nl_servcount; /* # of servers */
128};
129
130struct nfs_location_index {
131 uint8_t nli_flags; /* misc flags */
132 uint8_t nli_loc; /* location index */
133 uint8_t nli_serv; /* server index */
134 uint8_t nli_addr; /* address index */
135};
136#define NLI_VALID 0x01 /* index is valid */
137
138struct nfs_fs_locations {
139 struct nfs_fs_path nl_root; /* current server's root file system path */
140 uint32_t nl_numlocs; /* # of locations */
141 struct nfs_location_index nl_current; /* index of current location/server/address */
142 struct nfs_fs_location **nl_locations; /* array of fs locations */
143};
144
145/*
146 * RPC record marker parsing state
147 */
148struct nfs_rpc_record_state {
149 mbuf_t nrrs_m; /* mbufs for current record */
150 mbuf_t nrrs_mlast;
151 uint16_t nrrs_lastfrag; /* last fragment of record */
152 uint16_t nrrs_markerleft; /* marker bytes remaining */
153 uint32_t nrrs_fragleft; /* fragment bytes remaining */
154 uint32_t nrrs_reclen; /* length of RPC record */
155};
156
157/*
158 * NFS socket structures
159 */
160struct nfs_socket {
161 lck_mtx_t nso_lock; /* nfs socket lock */
162 TAILQ_ENTRY(nfs_socket) nso_link; /* list of sockets */
163 struct sockaddr * nso_saddr; /* socket address */
164 struct sockaddr * nso_saddr2; /* additional socket address */
165 void * nso_wake; /* address to wake up */
166 time_t nso_timestamp;
167 time_t nso_reqtimestamp; /* last request sent */
168 socket_t nso_so; /* socket */
169 uint8_t nso_sotype; /* Type of socket */
170 uint16_t nso_flags; /* NSO_* flags */
171 struct nfs_location_index nso_location; /* location index */
172 uint32_t nso_protocol; /* RPC protocol */
173 uint32_t nso_version; /* RPC protocol version */
174 uint32_t nso_pingxid; /* RPC XID of NULL ping request */
175 uint32_t nso_nfs_min_vers; /* minimum nfs version for connecting sockets */
176 uint32_t nso_nfs_max_vers; /* maximum nfs version for connecting sockets */
177 int nso_error; /* saved error/status */
178 struct nfs_rpc_record_state nso_rrs; /* RPC record parsing state (TCP) */
179};
180TAILQ_HEAD(nfssocketlist, nfs_socket);
181/* nso_flags */
182#define NSO_UPCALL 0x0001 /* socket upcall in progress */
183#define NSO_DEAD 0x0002 /* socket is dead */
184#define NSO_CONNECTING 0x0004 /* socket is being connected */
185#define NSO_CONNECTED 0x0008 /* socket connection complete */
186#define NSO_PINGING 0x0010 /* socket is being tested */
187#define NSO_VERIFIED 0x0020 /* socket appears functional */
188#define NSO_DISCONNECTING 0x0040 /* socket is being disconnected */
189
190/* NFS connect socket search state */
191struct nfs_socket_search {
192 struct nfs_location_index nss_startloc; /* starting location index */
193 struct nfs_location_index nss_nextloc; /* next location index */
194 struct nfssocketlist nss_socklist; /* list of active sockets */
195 time_t nss_timestamp; /* search start time */
196 time_t nss_last; /* timestamp of last socket */
197 struct nfs_socket * nss_sock; /* found socket */
198 uint8_t nss_sotype; /* TCP/UDP */
199 uint8_t nss_sockcnt; /* # of active sockets */
200 in_port_t nss_port; /* port # to connect to */
201 uint32_t nss_protocol; /* RPC protocol */
202 uint32_t nss_version; /* RPC protocol version */
203 uint32_t nss_flags; /* (see below) */
204 int nss_addrcnt; /* Number addresses to try or left */
205 int nss_timeo; /* how long we are willing to wait */
206 int nss_error; /* best error we've gotten so far */
207};
208/* nss_flags */
209#define NSS_VERBOSE 0x00000001 /* OK to log info about socket search */
210#define NSS_WARNED 0x00000002 /* logged warning about socket search taking a while */
211#define NSS_FALLBACK2PMAP 0x00000004 /* Try V4 on NFS_PORT first, if that fails fall back to portmapper */
212
213/*
214 * function table for calling version-specific NFS functions
215 */
216struct nfs_funcs {
217 int (*nf_mount)(struct nfsmount *, vfs_context_t, nfsnode_t *);
218 int (*nf_update_statfs)(struct nfsmount *, vfs_context_t);
219 int (*nf_getquota)(struct nfsmount *, vfs_context_t, uid_t, int, struct dqblk *);
220 int (*nf_access_rpc)(nfsnode_t, u_int32_t *, int, vfs_context_t);
221 int (*nf_getattr_rpc)(nfsnode_t, mount_t, u_char *, size_t, int, vfs_context_t, struct nfs_vattr *, u_int64_t *);
222 int (*nf_setattr_rpc)(nfsnode_t, struct vnode_attr *, vfs_context_t);
223 int (*nf_read_rpc_async)(nfsnode_t, off_t, size_t, thread_t, kauth_cred_t, struct nfsreq_cbinfo *, struct nfsreq **);
224 int (*nf_read_rpc_async_finish)(nfsnode_t, struct nfsreq *, uio_t, size_t *, int *);
225 int (*nf_readlink_rpc)(nfsnode_t, char *, uint32_t *, vfs_context_t);
226 int (*nf_write_rpc_async)(nfsnode_t, uio_t, size_t, thread_t, kauth_cred_t, int, struct nfsreq_cbinfo *, struct nfsreq **);
227 int (*nf_write_rpc_async_finish)(nfsnode_t, struct nfsreq *, int *, size_t *, uint64_t *);
228 int (*nf_commit_rpc)(nfsnode_t, uint64_t, uint64_t, kauth_cred_t, uint64_t);
229 int (*nf_lookup_rpc_async)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq **);
230 int (*nf_lookup_rpc_async_finish)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq *, u_int64_t *, fhandle_t *, struct nfs_vattr *);
231 int (*nf_remove_rpc)(nfsnode_t, char *, int, thread_t, kauth_cred_t);
232 int (*nf_rename_rpc)(nfsnode_t, char *, int, nfsnode_t, char *, int, vfs_context_t);
233 int (*nf_setlock_rpc)(nfsnode_t, struct nfs_open_file *, struct nfs_file_lock *, int, int, thread_t, kauth_cred_t);
234 int (*nf_unlock_rpc)(nfsnode_t, struct nfs_lock_owner *, int, uint64_t, uint64_t, int, thread_t, kauth_cred_t);
235 int (*nf_getlock_rpc)(nfsnode_t, struct nfs_lock_owner *, struct flock *, uint64_t, uint64_t, vfs_context_t);
236};
237
238/*
239 * The long form of the NFSv4 client ID.
240 */
241struct nfs_client_id {
242 TAILQ_ENTRY(nfs_client_id) nci_link; /* list of client IDs */
243 char *nci_id; /* client id buffer */
244 int nci_idlen; /* length of client id buffer */
245};
246TAILQ_HEAD(nfsclientidlist, nfs_client_id);
247extern struct nfsclientidlist nfsclientids;
248
249/*
250 * Mount structure.
251 * One allocated on every NFS mount.
252 * Holds NFS specific information for mount.
253 */
254struct nfsmount {
255 lck_mtx_t nm_lock; /* nfs mount lock */
256 char * nm_args; /* NFS mount args (XDR) */
257 uint32_t nm_mattrs[NFS_MATTR_BITMAP_LEN]; /* mount attributes in mount args */
258 uint32_t nm_mflags_mask[NFS_MFLAG_BITMAP_LEN]; /* mount flags mask in mount args */
259 uint32_t nm_mflags[NFS_MFLAG_BITMAP_LEN]; /* mount flags in mount args */
260 uint32_t nm_flags[NFS_MFLAG_BITMAP_LEN]; /* current mount flags (soft, intr, etc...) */
261 char * nm_realm; /* Kerberos realm to use */
262 char * nm_principal; /* GSS principal to use on initial mount */
263 char * nm_sprinc; /* Kerberos principal of the server */
264 int nm_ref; /* Reference count on this mount */
265 int nm_state; /* Internal state flags */
266 int nm_vers; /* NFS version */
267 uint32_t nm_minor_vers; /* minor version of above */
268 uint32_t nm_min_vers; /* minimum packed version to try */
269 uint32_t nm_max_vers; /* maximum packed version to try */
270 const struct nfs_funcs *nm_funcs;/* version-specific functions */
271 kauth_cred_t nm_mcred; /* credential used for the mount */
272 mount_t nm_mountp; /* VFS structure for this filesystem */
273 nfsnode_t nm_dnp; /* root directory nfsnode pointer */
274 struct nfs_fs_locations nm_locations; /* file system locations */
275 uint32_t nm_numgrps; /* Max. size of groupslist */
276 TAILQ_HEAD(, nfs_gss_clnt_ctx) nm_gsscl; /* GSS user contexts */
277 uint32_t nm_ncentries; /* GSS expired negative cache entries */
278 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
279 int nm_retry; /* Max retries */
280 uint32_t nm_rsize; /* Max size of read rpc */
281 uint32_t nm_wsize; /* Max size of write rpc */
282 uint32_t nm_biosize; /* buffer I/O size */
283 uint32_t nm_readdirsize; /* Size of a readdir rpc */
284 uint32_t nm_readahead; /* Num. of blocks to readahead */
285 uint32_t nm_acregmin; /* reg file min attr cache timeout */
286 uint32_t nm_acregmax; /* reg file max attr cache timeout */
287 uint32_t nm_acdirmin; /* dir min attr cache timeout */
288 uint32_t nm_acdirmax; /* dir max attr cache timeout */
289 uint32_t nm_auth; /* security mechanism flavor being used */
290 uint32_t nm_writers; /* Number of nodes open for writing */
291 uint32_t nm_mappers; /* Number of nodes that have mmapped */
292 struct nfs_sec nm_sec; /* acceptable security mechanism flavors */
293 struct nfs_sec nm_servsec; /* server's acceptable security mechanism flavors */
294 struct nfs_etype nm_etype; /* If using kerberos, the support session key encryption types */
295 fhandle_t *nm_fh; /* initial file handle */
296 uint8_t nm_lockmode; /* advisory file locking mode */
297 /* mount info */
298 uint32_t nm_fsattrstamp; /* timestamp for fs attrs */
299 struct nfs_fsattr nm_fsattr; /* file system attributes */
300 uint64_t nm_verf; /* v3/v4 write verifier */
301 union {
302 struct { /* v2/v3 specific fields */
303 TAILQ_ENTRY(nfsmount) ldlink; /* chain of mounts registered for lockd use */
304 int udp_sent; /* UDP request send count */
305 int udp_cwnd; /* UDP request congestion window */
306 struct nfs_reqqhead udp_cwndq; /* requests waiting on cwnd */
307 struct sockaddr *rqsaddr;/* cached rquota socket address */
308 uint32_t rqsaddrstamp; /* timestamp of rquota socket address */
309 } v3;
310 struct { /* v4 specific fields */
311 struct nfs_client_id *longid; /* client ID, long form */
312 uint64_t mounttime; /* used as client ID verifier */
313 uint64_t clientid; /* client ID, short form */
314 thread_call_t renew_timer; /* RENEW timer call */
315 nfs_fsid fsid; /* NFS file system id */
316 TAILQ_HEAD(, nfsnode) delegations; /* list of nodes with delegations */
317 TAILQ_HEAD(, nfsnode) dreturnq; /* list of nodes with delegations to return */
318 TAILQ_ENTRY(nfsmount) cblink; /* chain of mounts registered for callbacks */
319 uint32_t cbid; /* callback channel identifier */
320 uint32_t cbrefs; /* # callbacks using this mount */
321 } v4;
322 } nm_un;
323 /* common state */
324 TAILQ_HEAD(, nfs_open_owner) nm_open_owners; /* list of open owners */
325 uint32_t nm_stateinuse; /* state in use counter */
326 uint32_t nm_stategenid; /* state generation counter */
327 time_t nm_recover_start; /* recover start time */
328 LIST_HEAD(, nfsnode) nm_monlist; /* list of nodes being monitored */
329 /* async I/O queue */
330 struct nfs_reqqhead nm_resendq; /* async I/O resend queue */
331 struct nfs_reqqhead nm_iodq; /* async I/O request queue */
332 struct nfsiod *nm_niod; /* nfsiod processing this mount */
333 TAILQ_ENTRY(nfsmount) nm_iodlink; /* chain of mounts awaiting nfsiod */
334 int nm_asyncwrites; /* outstanding async I/O writes */
335 /* socket state */
336 uint8_t nm_sofamily; /* (preferred) protocol family of socket */
337 uint8_t nm_sotype; /* (preferred) type of socket */
338 in_port_t nm_nfsport; /* NFS protocol port */
339 in_port_t nm_mountport; /* MOUNT protocol port (v2/v3) */
340 struct nfs_socket_search *nm_nss; /* current socket search structure */
341 struct nfs_socket *nm_nso; /* current socket */
342 struct sockaddr *nm_saddr; /* Address of server */
343 u_short nm_sockflags; /* socket state flags */
344 time_t nm_deadto_start; /* dead timeout start time */
345 time_t nm_reconnect_start; /* reconnect start time */
346 int nm_tprintf_initial_delay; /* delay first "server down" */
347 int nm_tprintf_delay; /* delay between "server down" */
348 int nm_deadtimeout; /* delay between first "server down" and dead set at mount time */
349 int nm_curdeadtimeout; /* current dead timeout. Adjusted by mount state and mobility */
350 int nm_srtt[4]; /* Timers for RPCs */
351 int nm_sdrtt[4];
352 int nm_timeouts; /* Request timeouts */
353 int nm_jbreqs; /* # R_JBTPRINTFMSG requests */
354 int nm_mounterror; /* status of mount connect */
355 TAILQ_ENTRY(nfsmount) nm_pokeq; /* mount poke queue chain */
356 thread_t nm_sockthd; /* socket thread for this mount */
357};
358
359/* macro for checking current mount flags */
360#define NMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_flags, NFS_MFLAG_ ## F)
361/* macros for checking (original) mount attributes/flags */
362#define NM_OMATTR_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mattrs, NFS_MATTR_ ## F)
363#define NM_OMFLAG_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags_mask, NFS_MFLAG_ ## F)
364#define NM_OMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags, NFS_MFLAG_ ## F)
365
366/*
367 * NFS mount state flags (nm_state)
368 */
369#define NFSSTA_MOUNT_THREAD 0x00000040 /* nfs_mount_connect_thread running */
370#define NFSSTA_MONITOR_SCAN 0x00000080 /* scan of monitored nodes in progress */
371#define NFSSTA_UNMOUNTING 0x00000100 /* an unmount attempt is in progress */
372#define NFSSTA_NEEDSECINFO 0x00000200 /* need to fetch security info */
373#define NFSSTA_CLIENTID 0x00000400 /* short client ID is valid */
374#define NFSSTA_BIGCOOKIES 0x00000800 /* have seen >32bit dir cookies */
375#define NFSSTA_JUKEBOXTIMEO 0x00001000 /* experienced a jukebox timeout */
376#define NFSSTA_LOCKTIMEO 0x00002000 /* experienced a lock req timeout */
377#define NFSSTA_MOUNTED 0x00004000 /* completely mounted */
378#define NFSSTA_LOCKSWORK 0x00008000 /* lock ops have worked. */
379#define NFSSTA_TIMEO 0x00010000 /* experienced a timeout. */
380#define NFSSTA_FORCE 0x00020000 /* doing a forced unmount. */
381#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
382#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
383#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
384#define NFSSTA_WANTRQUOTA 0x00200000 /* Want rquota address */
385#define NFSSTA_RQUOTAINPROG 0x00400000 /* Getting rquota address */
386#define NFSSTA_SENDING 0x00800000 /* Sending on socket */
387#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
388#define NFSSTA_WANTSND 0x02000000 /* Want above */
389#define NFSSTA_DEAD 0x04000000 /* mount is dead */
390#define NFSSTA_RECOVER 0x08000000 /* mount state needs to be recovered */
391#define NFSSTA_RECOVER_EXPIRED 0x10000000 /* mount state expired */
392#define NFSSTA_REVOKE 0x20000000 /* need to scan for revoked nodes */
393#define NFSSTA_SQUISHY 0x40000000 /* we can ask to be forcibly unmounted */
394#define NFSSTA_MOUNT_DRAIN 0x80000000 /* mount is draining references */
395
396/* flags for nm_sockflags */
397#define NMSOCK_READY 0x0001 /* socket is ready for use */
398#define NMSOCK_CONNECTING 0x0002 /* socket is being connect()ed */
399#define NMSOCK_SETUP 0x0004 /* socket/connection is being set up */
400#define NMSOCK_UNMOUNT 0x0008 /* unmounted, no more socket activity */
401#define NMSOCK_HASCONNECTED 0x0010 /* socket has connected before */
402#define NMSOCK_POKE 0x0020 /* socket needs to be poked */
403#define NMSOCK_DISCONNECTING 0x0080 /* socket is being disconnected */
404
405/* aliases for version-specific fields */
406#define nm_ldlink nm_un.v3.ldlink
407#define nm_sent nm_un.v3.udp_sent
408#define nm_cwnd nm_un.v3.udp_cwnd
409#define nm_cwndq nm_un.v3.udp_cwndq
410#define nm_rqproto nm_un.v3.rqproto
411#define nm_rqsaddr nm_un.v3.rqsaddr
412#define nm_rqsaddrstamp nm_un.v3.rqsaddrstamp
413#define nm_longid nm_un.v4.longid
414#define nm_clientid nm_un.v4.clientid
415#define nm_mounttime nm_un.v4.mounttime
416#define nm_fsid nm_un.v4.fsid
417#define nm_renew_timer nm_un.v4.renew_timer
418#define nm_cbid nm_un.v4.cbid
419#define nm_cblink nm_un.v4.cblink
420#define nm_cbrefs nm_un.v4.cbrefs
421#define nm_delegations nm_un.v4.delegations
422#define nm_dreturnq nm_un.v4.dreturnq
423
424#if defined(KERNEL)
425/*
426 * Macros to convert from various things to mount structures.
427 */
428#define VFSTONFS(mp) ((mp) ? ((struct nfsmount *)vfs_fsprivate(mp)) : NULL)
429#define VTONMP(vp) VFSTONFS(vnode_mount(vp))
430#define NFSTONMP(np) VTONMP(NFSTOV(np))
431#define NFSTOMP(np) (vnode_mount(NFSTOV(np)))
432
433#endif /* KERNEL */
434
435#endif /* __APPLE_API_PRIVATE */
436#endif /* _NFS_NFSMOUNT_H_ */
437