1/* 2 * Copyright (c) 2000-2014 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 int nso_error; /* saved error/status */ 176 struct nfs_rpc_record_state nso_rrs; /* RPC record parsing state (TCP) */ 177}; 178TAILQ_HEAD(nfssocketlist, nfs_socket); 179/* nso_flags */ 180#define NSO_UPCALL 0x0001 /* socket upcall in progress */ 181#define NSO_DEAD 0x0002 /* socket is dead */ 182#define NSO_CONNECTING 0x0004 /* socket is being connected */ 183#define NSO_CONNECTED 0x0008 /* socket connection complete */ 184#define NSO_PINGING 0x0010 /* socket is being tested */ 185#define NSO_VERIFIED 0x0020 /* socket appears functional */ 186#define NSO_DISCONNECTING 0x0040 /* socket is being disconnected */ 187 188/* NFS connect socket search state */ 189struct nfs_socket_search { 190 struct nfs_location_index nss_startloc; /* starting location index */ 191 struct nfs_location_index nss_nextloc; /* next location index */ 192 struct nfssocketlist nss_socklist; /* list of active sockets */ 193 time_t nss_timestamp; /* search start time */ 194 time_t nss_last; /* timestamp of last socket */ 195 struct nfs_socket * nss_sock; /* found socket */ 196 uint8_t nss_sotype; /* TCP/UDP */ 197 uint8_t nss_sockcnt; /* # of active sockets */ 198 in_port_t nss_port; /* port # to connect to */ 199 uint32_t nss_protocol; /* RPC protocol */ 200 uint32_t nss_version; /* RPC protocol version */ 201 uint32_t nss_flags; /* (see below) */ 202 int nss_addrcnt; /* Number addresses to try or left */ 203 int nss_timeo; /* how long we are willing to wait */ 204 int nss_error; /* best error we've gotten so far */ 205}; 206/* nss_flags */ 207#define NSS_VERBOSE 0x00000001 /* OK to log info about socket search */ 208#define NSS_WARNED 0x00000002 /* logged warning about socket search taking a while */ 209 210/* 211 * function table for calling version-specific NFS functions 212 */ 213struct nfs_funcs { 214 int (*nf_mount)(struct nfsmount *, vfs_context_t, nfsnode_t *); 215 int (*nf_update_statfs)(struct nfsmount *, vfs_context_t); 216 int (*nf_getquota)(struct nfsmount *, vfs_context_t, uid_t, int, struct dqblk *); 217 int (*nf_access_rpc)(nfsnode_t, u_int32_t *, int, vfs_context_t); 218 int (*nf_getattr_rpc)(nfsnode_t, mount_t, u_char *, size_t, int, vfs_context_t, struct nfs_vattr *, u_int64_t *); 219 int (*nf_setattr_rpc)(nfsnode_t, struct vnode_attr *, vfs_context_t); 220 int (*nf_read_rpc_async)(nfsnode_t, off_t, size_t, thread_t, kauth_cred_t, struct nfsreq_cbinfo *, struct nfsreq **); 221 int (*nf_read_rpc_async_finish)(nfsnode_t, struct nfsreq *, uio_t, size_t *, int *); 222 int (*nf_readlink_rpc)(nfsnode_t, char *, uint32_t *, vfs_context_t); 223 int (*nf_write_rpc_async)(nfsnode_t, uio_t, size_t, thread_t, kauth_cred_t, int, struct nfsreq_cbinfo *, struct nfsreq **); 224 int (*nf_write_rpc_async_finish)(nfsnode_t, struct nfsreq *, int *, size_t *, uint64_t *); 225 int (*nf_commit_rpc)(nfsnode_t, uint64_t, uint64_t, kauth_cred_t, uint64_t); 226 int (*nf_lookup_rpc_async)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq **); 227 int (*nf_lookup_rpc_async_finish)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq *, u_int64_t *, fhandle_t *, struct nfs_vattr *); 228 int (*nf_remove_rpc)(nfsnode_t, char *, int, thread_t, kauth_cred_t); 229 int (*nf_rename_rpc)(nfsnode_t, char *, int, nfsnode_t, char *, int, vfs_context_t); 230 int (*nf_setlock_rpc)(nfsnode_t, struct nfs_open_file *, struct nfs_file_lock *, int, int, thread_t, kauth_cred_t); 231 int (*nf_unlock_rpc)(nfsnode_t, struct nfs_lock_owner *, int, uint64_t, uint64_t, int, thread_t, kauth_cred_t); 232 int (*nf_getlock_rpc)(nfsnode_t, struct nfs_lock_owner *, struct flock *, uint64_t, uint64_t, vfs_context_t); 233}; 234 235/* 236 * The long form of the NFSv4 client ID. 237 */ 238struct nfs_client_id { 239 TAILQ_ENTRY(nfs_client_id) nci_link; /* list of client IDs */ 240 char *nci_id; /* client id buffer */ 241 int nci_idlen; /* length of client id buffer */ 242}; 243TAILQ_HEAD(nfsclientidlist, nfs_client_id); 244extern struct nfsclientidlist nfsclientids; 245 246/* 247 * Mount structure. 248 * One allocated on every NFS mount. 249 * Holds NFS specific information for mount. 250 */ 251struct nfsmount { 252 lck_mtx_t nm_lock; /* nfs mount lock */ 253 char * nm_args; /* NFS mount args (XDR) */ 254 uint32_t nm_mattrs[NFS_MATTR_BITMAP_LEN]; /* mount attributes in mount args */ 255 uint32_t nm_mflags_mask[NFS_MFLAG_BITMAP_LEN]; /* mount flags mask in mount args */ 256 uint32_t nm_mflags[NFS_MFLAG_BITMAP_LEN]; /* mount flags in mount args */ 257 uint32_t nm_flags[NFS_MFLAG_BITMAP_LEN]; /* current mount flags (soft, intr, etc...) */ 258 char * nm_realm; /* Kerberos realm to use */ 259 char * nm_principal; /* GSS principal to use on initial mount */ 260 char * nm_sprinc; /* Kerberos principal of the server */ 261 int nm_ref; /* Reference count on this mount */ 262 int nm_state; /* Internal state flags */ 263 int nm_vers; /* NFS version */ 264 struct nfs_funcs *nm_funcs; /* version-specific functions */ 265 kauth_cred_t nm_mcred; /* credential used for the mount */ 266 mount_t nm_mountp; /* VFS structure for this filesystem */ 267 nfsnode_t nm_dnp; /* root directory nfsnode pointer */ 268 struct nfs_fs_locations nm_locations; /* file system locations */ 269 uint32_t nm_numgrps; /* Max. size of groupslist */ 270 TAILQ_HEAD(, nfs_gss_clnt_ctx) nm_gsscl; /* GSS user contexts */ 271 TAILQ_HEAD(, nfs_gss_clnt_ctx) nm_gssnccl; /* GSS neg cache contexts */ 272 uint32_t nm_ncentries; /* GSS expired negative cache entries */ 273 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 274 int nm_retry; /* Max retries */ 275 uint32_t nm_rsize; /* Max size of read rpc */ 276 uint32_t nm_wsize; /* Max size of write rpc */ 277 uint32_t nm_biosize; /* buffer I/O size */ 278 uint32_t nm_readdirsize; /* Size of a readdir rpc */ 279 uint32_t nm_readahead; /* Num. of blocks to readahead */ 280 uint32_t nm_acregmin; /* reg file min attr cache timeout */ 281 uint32_t nm_acregmax; /* reg file max attr cache timeout */ 282 uint32_t nm_acdirmin; /* dir min attr cache timeout */ 283 uint32_t nm_acdirmax; /* dir max attr cache timeout */ 284 uint32_t nm_auth; /* security mechanism flavor being used */ 285 uint32_t nm_writers; /* Number of nodes open for writing */ 286 uint32_t nm_mappers; /* Number of nodes that have mmapped */ 287 struct nfs_sec nm_sec; /* acceptable security mechanism flavors */ 288 struct nfs_sec nm_servsec; /* server's acceptable security mechanism flavors */ 289 fhandle_t *nm_fh; /* initial file handle */ 290 uint8_t nm_lockmode; /* advisory file locking mode */ 291 /* mount info */ 292 uint32_t nm_fsattrstamp; /* timestamp for fs attrs */ 293 struct nfs_fsattr nm_fsattr; /* file system attributes */ 294 uint64_t nm_verf; /* v3/v4 write verifier */ 295 union { 296 struct { /* v2/v3 specific fields */ 297 TAILQ_ENTRY(nfsmount) ldlink; /* chain of mounts registered for lockd use */ 298 int udp_sent; /* UDP request send count */ 299 int udp_cwnd; /* UDP request congestion window */ 300 struct nfs_reqqhead udp_cwndq; /* requests waiting on cwnd */ 301 struct sockaddr *rqsaddr;/* cached rquota socket address */ 302 uint32_t rqsaddrstamp; /* timestamp of rquota socket address */ 303 } v3; 304 struct { /* v4 specific fields */ 305 struct nfs_client_id *longid; /* client ID, long form */ 306 uint64_t mounttime; /* used as client ID verifier */ 307 uint64_t clientid; /* client ID, short form */ 308 thread_call_t renew_timer; /* RENEW timer call */ 309 nfs_fsid fsid; /* NFS file system id */ 310 TAILQ_HEAD(, nfsnode) delegations; /* list of nodes with delegations */ 311 TAILQ_HEAD(, nfsnode) dreturnq; /* list of nodes with delegations to return */ 312 TAILQ_ENTRY(nfsmount) cblink; /* chain of mounts registered for callbacks */ 313 uint32_t cbid; /* callback channel identifier */ 314 uint32_t cbrefs; /* # callbacks using this mount */ 315 } v4; 316 } nm_un; 317 /* common state */ 318 TAILQ_HEAD(, nfs_open_owner) nm_open_owners; /* list of open owners */ 319 uint32_t nm_stateinuse; /* state in use counter */ 320 uint32_t nm_stategenid; /* state generation counter */ 321 time_t nm_recover_start; /* recover start time */ 322 LIST_HEAD(, nfsnode) nm_monlist; /* list of nodes being monitored */ 323 /* async I/O queue */ 324 struct nfs_reqqhead nm_resendq; /* async I/O resend queue */ 325 struct nfs_reqqhead nm_iodq; /* async I/O request queue */ 326 struct nfsiod *nm_niod; /* nfsiod processing this mount */ 327 TAILQ_ENTRY(nfsmount) nm_iodlink; /* chain of mounts awaiting nfsiod */ 328 int nm_asyncwrites; /* outstanding async I/O writes */ 329 /* socket state */ 330 uint8_t nm_sofamily; /* (preferred) protocol family of socket */ 331 uint8_t nm_sotype; /* (preferred) type of socket */ 332 in_port_t nm_nfsport; /* NFS protocol port */ 333 in_port_t nm_mountport; /* MOUNT protocol port (v2/v3) */ 334 struct nfs_socket_search *nm_nss; /* current socket search structure */ 335 struct nfs_socket *nm_nso; /* current socket */ 336 struct sockaddr *nm_saddr; /* Address of server */ 337 u_short nm_sockflags; /* socket state flags */ 338 time_t nm_deadto_start; /* dead timeout start time */ 339 time_t nm_reconnect_start; /* reconnect start time */ 340 int nm_tprintf_initial_delay; /* delay first "server down" */ 341 int nm_tprintf_delay; /* delay between "server down" */ 342 int nm_deadtimeout; /* delay between first "server down" and dead set at mount time */ 343 int nm_curdeadtimeout; /* current dead timeout. Adjusted by mount state and mobility */ 344 int nm_srtt[4]; /* Timers for RPCs */ 345 int nm_sdrtt[4]; 346 int nm_timeouts; /* Request timeouts */ 347 int nm_jbreqs; /* # R_JBTPRINTFMSG requests */ 348 int nm_mounterror; /* status of mount connect */ 349 TAILQ_ENTRY(nfsmount) nm_pokeq; /* mount poke queue chain */ 350 thread_t nm_sockthd; /* socket thread for this mount */ 351}; 352 353/* macro for checking current mount flags */ 354#define NMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_flags, NFS_MFLAG_ ## F) 355/* macros for checking (original) mount attributes/flags */ 356#define NM_OMATTR_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mattrs, NFS_MATTR_ ## F) 357#define NM_OMFLAG_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags_mask, NFS_MFLAG_ ## F) 358#define NM_OMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags, NFS_MFLAG_ ## F) 359 360/* 361 * NFS mount state flags (nm_state) 362 */ 363#define NFSSTA_MOUNT_THREAD 0x00000040 /* nfs_mount_connect_thread running */ 364#define NFSSTA_MONITOR_SCAN 0x00000080 /* scan of monitored nodes in progress */ 365#define NFSSTA_UNMOUNTING 0x00000100 /* an unmount attempt is in progress */ 366#define NFSSTA_NEEDSECINFO 0x00000200 /* need to fetch security info */ 367#define NFSSTA_CLIENTID 0x00000400 /* short client ID is valid */ 368#define NFSSTA_BIGCOOKIES 0x00000800 /* have seen >32bit dir cookies */ 369#define NFSSTA_JUKEBOXTIMEO 0x00001000 /* experienced a jukebox timeout */ 370#define NFSSTA_LOCKTIMEO 0x00002000 /* experienced a lock req timeout */ 371#define NFSSTA_MOUNTED 0x00004000 /* completely mounted */ 372#define NFSSTA_LOCKSWORK 0x00008000 /* lock ops have worked. */ 373#define NFSSTA_TIMEO 0x00010000 /* experienced a timeout. */ 374#define NFSSTA_FORCE 0x00020000 /* doing a forced unmount. */ 375#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 376#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 377#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 378#define NFSSTA_SENDING 0x00800000 /* Sending on socket */ 379#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ 380#define NFSSTA_WANTSND 0x02000000 /* Want above */ 381#define NFSSTA_DEAD 0x04000000 /* mount is dead */ 382#define NFSSTA_RECOVER 0x08000000 /* mount state needs to be recovered */ 383#define NFSSTA_RECOVER_EXPIRED 0x10000000 /* mount state expired */ 384#define NFSSTA_REVOKE 0x20000000 /* need to scan for revoked nodes */ 385#define NFSSTA_SQUISHY 0x40000000 /* we can ask to be forcibly unmounted */ 386#define NFSSTA_MOUNT_DRAIN 0x80000000 /* mount is draining references */ 387 388/* flags for nm_sockflags */ 389#define NMSOCK_READY 0x0001 /* socket is ready for use */ 390#define NMSOCK_CONNECTING 0x0002 /* socket is being connect()ed */ 391#define NMSOCK_SETUP 0x0004 /* socket/connection is being set up */ 392#define NMSOCK_UNMOUNT 0x0008 /* unmounted, no more socket activity */ 393#define NMSOCK_HASCONNECTED 0x0010 /* socket has connected before */ 394#define NMSOCK_POKE 0x0020 /* socket needs to be poked */ 395#define NMSOCK_DISCONNECTING 0x0080 /* socket is being disconnected */ 396 397/* aliases for version-specific fields */ 398#define nm_ldlink nm_un.v3.ldlink 399#define nm_sent nm_un.v3.udp_sent 400#define nm_cwnd nm_un.v3.udp_cwnd 401#define nm_cwndq nm_un.v3.udp_cwndq 402#define nm_rqproto nm_un.v3.rqproto 403#define nm_rqsaddr nm_un.v3.rqsaddr 404#define nm_rqsaddrstamp nm_un.v3.rqsaddrstamp 405#define nm_longid nm_un.v4.longid 406#define nm_clientid nm_un.v4.clientid 407#define nm_mounttime nm_un.v4.mounttime 408#define nm_fsid nm_un.v4.fsid 409#define nm_renew_timer nm_un.v4.renew_timer 410#define nm_cbid nm_un.v4.cbid 411#define nm_cblink nm_un.v4.cblink 412#define nm_cbrefs nm_un.v4.cbrefs 413#define nm_delegations nm_un.v4.delegations 414#define nm_dreturnq nm_un.v4.dreturnq 415 416#if defined(KERNEL) 417/* 418 * Macros to convert from various things to mount structures. 419 */ 420#define VFSTONFS(mp) ((mp) ? ((struct nfsmount *)vfs_fsprivate(mp)) : NULL) 421#define VTONMP(vp) VFSTONFS(vnode_mount(vp)) 422#define NFSTONMP(np) VTONMP(NFSTOV(np)) 423#define NFSTOMP(np) (vnode_mount(NFSTOV(np))) 424 425#endif /* KERNEL */ 426 427#endif /* __APPLE_API_PRIVATE */ 428#endif /* _NFS_NFSMOUNT_H_ */ 429