/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#include <sys/appleapiopts.h>
#ifdef __APPLE_API_PRIVATE
+
+/*
+ * NFS mount file system attributes
+ */
+struct nfs_fsattr {
+ uint32_t nfsa_flags; /* file system flags */
+ uint32_t nfsa_lease; /* lease time in seconds */
+ uint32_t nfsa_maxname; /* maximum filename size */
+ uint32_t nfsa_maxlink; /* maximum # links */
+ uint32_t nfsa_bsize; /* block size */
+ uint32_t nfsa_pad; /* UNUSED */
+ uint64_t nfsa_maxfilesize; /* maximum file size */
+ uint64_t nfsa_maxread; /* maximum read size */
+ uint64_t nfsa_maxwrite; /* maximum write size */
+ uint64_t nfsa_files_avail; /* file slots available */
+ uint64_t nfsa_files_free; /* file slots free */
+ uint64_t nfsa_files_total; /* file slots total */
+ uint64_t nfsa_space_avail; /* disk space available */
+ uint64_t nfsa_space_free; /* disk space free */
+ uint64_t nfsa_space_total; /* disk space total */
+ uint32_t nfsa_supp_attr[NFS_ATTR_BITMAP_LEN]; /* attributes supported on this file system */
+ uint32_t nfsa_bitmap[NFS_ATTR_BITMAP_LEN]; /* valid attributes */
+};
+#define NFS_FSFLAG_LINK 0x00000001
+#define NFS_FSFLAG_SYMLINK 0x00000002
+#define NFS_FSFLAG_UNIQUE_FH 0x00000004
+#define NFS_FSFLAG_ACL 0x00000008
+#define NFS_FSFLAG_SET_TIME 0x00000010
+#define NFS_FSFLAG_CASE_INSENSITIVE 0x00000020
+#define NFS_FSFLAG_CASE_PRESERVING 0x00000040
+#define NFS_FSFLAG_CHOWN_RESTRICTED 0x00000080
+#define NFS_FSFLAG_HOMOGENEOUS 0x00000100
+#define NFS_FSFLAG_NO_TRUNC 0x00000200
+#define NFS_FSFLAG_NAMED_ATTR 0x00000400
+#define NFS_FSFLAG_FHTYPE_MASK 0xFF000000
+#define NFS_FSFLAG_FHTYPE_SHIFT 24
+
+/*
+ * NFS file system location structures
+ */
+struct nfs_fs_server {
+ char * ns_name; /* name of server */
+ char ** ns_addresses; /* array of addresses for server */
+ uint32_t ns_addrcount; /* # of addresses */
+};
+struct nfs_fs_path {
+ char ** np_components; /* array of component pointers */
+ uint32_t np_compcount; /* # components in path */
+};
+struct nfs_fs_location {
+ struct nfs_fs_server ** nl_servers; /* array of server pointers */
+ struct nfs_fs_path nl_path; /* file system path */
+ uint32_t nl_servcount; /* # of servers */
+};
+
+struct nfs_location_index {
+ uint8_t nli_flags; /* misc flags */
+ uint8_t nli_loc; /* location index */
+ uint8_t nli_serv; /* server index */
+ uint8_t nli_addr; /* address index */
+};
+#define NLI_VALID 0x01 /* index is valid */
+
+struct nfs_fs_locations {
+ struct nfs_fs_path nl_root; /* current server's root file system path */
+ uint32_t nl_numlocs; /* # of locations */
+ struct nfs_location_index nl_current; /* index of current location/server/address */
+ struct nfs_fs_location **nl_locations; /* array of fs locations */
+};
+
+/*
+ * RPC record marker parsing state
+ */
+struct nfs_rpc_record_state {
+ mbuf_t nrrs_m; /* mbufs for current record */
+ mbuf_t nrrs_mlast;
+ uint16_t nrrs_lastfrag; /* last fragment of record */
+ uint16_t nrrs_markerleft; /* marker bytes remaining */
+ uint32_t nrrs_fragleft; /* fragment bytes remaining */
+ uint32_t nrrs_reclen; /* length of RPC record */
+};
+
+/*
+ * NFS socket structures
+ */
+struct nfs_socket {
+ lck_mtx_t nso_lock; /* nfs socket lock */
+ TAILQ_ENTRY(nfs_socket) nso_link; /* list of sockets */
+ struct sockaddr * nso_saddr; /* socket address */
+ struct sockaddr * nso_saddr2; /* additional socket address */
+ void * nso_wake; /* address to wake up */
+ time_t nso_timestamp;
+ time_t nso_reqtimestamp; /* last request sent */
+ socket_t nso_so; /* socket */
+ uint8_t nso_sotype; /* Type of socket */
+ uint16_t nso_flags; /* NSO_* flags */
+ struct nfs_location_index nso_location; /* location index */
+ uint32_t nso_protocol; /* RPC protocol */
+ uint32_t nso_version; /* RPC protocol version */
+ uint32_t nso_pingxid; /* RPC XID of NULL ping request */
+ int nso_error; /* saved error/status */
+ struct nfs_rpc_record_state nso_rrs; /* RPC record parsing state (TCP) */
+};
+TAILQ_HEAD(nfssocketlist, nfs_socket);
+/* nso_flags */
+#define NSO_UPCALL 0x0001 /* socket upcall in progress */
+#define NSO_DEAD 0x0002 /* socket is dead */
+#define NSO_CONNECTING 0x0004 /* socket is being connected */
+#define NSO_CONNECTED 0x0008 /* socket connection complete */
+#define NSO_PINGING 0x0010 /* socket is being tested */
+#define NSO_VERIFIED 0x0020 /* socket appears functional */
+#define NSO_DISCONNECTING 0x0040 /* socket is being disconnected */
+
+/* NFS connect socket search state */
+struct nfs_socket_search {
+ struct nfs_location_index nss_startloc; /* starting location index */
+ struct nfs_location_index nss_nextloc; /* next location index */
+ struct nfssocketlist nss_socklist; /* list of active sockets */
+ time_t nss_timestamp; /* search start time */
+ time_t nss_last; /* timestamp of last socket */
+ struct nfs_socket * nss_sock; /* found socket */
+ uint8_t nss_sotype; /* TCP/UDP */
+ uint8_t nss_sockcnt; /* # of active sockets */
+ in_port_t nss_port; /* port # to connect to */
+ uint32_t nss_protocol; /* RPC protocol */
+ uint32_t nss_version; /* RPC protocol version */
+ uint32_t nss_flags; /* (see below) */
+ int nss_addrcnt; /* Number addresses to try or left */
+ int nss_timeo; /* how long we are willing to wait */
+ int nss_error; /* best error we've gotten so far */
+};
+/* nss_flags */
+#define NSS_VERBOSE 0x00000001 /* OK to log info about socket search */
+#define NSS_WARNED 0x00000002 /* logged warning about socket search taking a while */
+
+/*
+ * function table for calling version-specific NFS functions
+ */
+struct nfs_funcs {
+ int (*nf_mount)(struct nfsmount *, vfs_context_t, nfsnode_t *);
+ int (*nf_update_statfs)(struct nfsmount *, vfs_context_t);
+ int (*nf_getquota)(struct nfsmount *, vfs_context_t, uid_t, int, struct dqblk *);
+ int (*nf_access_rpc)(nfsnode_t, u_int32_t *, vfs_context_t);
+ int (*nf_getattr_rpc)(nfsnode_t, mount_t, u_char *, size_t, int, vfs_context_t, struct nfs_vattr *, u_int64_t *);
+ int (*nf_setattr_rpc)(nfsnode_t, struct vnode_attr *, vfs_context_t);
+ int (*nf_read_rpc_async)(nfsnode_t, off_t, size_t, thread_t, kauth_cred_t, struct nfsreq_cbinfo *, struct nfsreq **);
+ int (*nf_read_rpc_async_finish)(nfsnode_t, struct nfsreq *, uio_t, size_t *, int *);
+ int (*nf_readlink_rpc)(nfsnode_t, char *, uint32_t *, vfs_context_t);
+ int (*nf_write_rpc_async)(nfsnode_t, uio_t, size_t, thread_t, kauth_cred_t, int, struct nfsreq_cbinfo *, struct nfsreq **);
+ int (*nf_write_rpc_async_finish)(nfsnode_t, struct nfsreq *, int *, size_t *, uint64_t *);
+ int (*nf_commit_rpc)(nfsnode_t, uint64_t, uint64_t, kauth_cred_t, uint64_t);
+ int (*nf_lookup_rpc_async)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq **);
+ int (*nf_lookup_rpc_async_finish)(nfsnode_t, char *, int, vfs_context_t, struct nfsreq *, u_int64_t *, fhandle_t *, struct nfs_vattr *);
+ int (*nf_remove_rpc)(nfsnode_t, char *, int, thread_t, kauth_cred_t);
+ int (*nf_rename_rpc)(nfsnode_t, char *, int, nfsnode_t, char *, int, vfs_context_t);
+ int (*nf_setlock_rpc)(nfsnode_t, struct nfs_open_file *, struct nfs_file_lock *, int, int, thread_t, kauth_cred_t);
+ int (*nf_unlock_rpc)(nfsnode_t, struct nfs_lock_owner *, int, uint64_t, uint64_t, int, thread_t, kauth_cred_t);
+ int (*nf_getlock_rpc)(nfsnode_t, struct nfs_lock_owner *, struct flock *, uint64_t, uint64_t, vfs_context_t);
+};
+
+/*
+ * The long form of the NFSv4 client ID.
+ */
+struct nfs_client_id {
+ TAILQ_ENTRY(nfs_client_id) nci_link; /* list of client IDs */
+ char *nci_id; /* client id buffer */
+ int nci_idlen; /* length of client id buffer */
+};
+TAILQ_HEAD(nfsclientidlist, nfs_client_id);
+extern struct nfsclientidlist nfsclientids;
+
/*
* Mount structure.
* One allocated on every NFS mount.
* Holds NFS specific information for mount.
*/
-struct nfsmount {
- int nm_flag; /* Flags for soft/hard... */
+struct nfsmount {
+ lck_mtx_t nm_lock; /* nfs mount lock */
+ char * nm_args; /* NFS mount args (XDR) */
+ uint32_t nm_mattrs[NFS_MATTR_BITMAP_LEN]; /* mount attributes in mount args */
+ uint32_t nm_mflags_mask[NFS_MFLAG_BITMAP_LEN]; /* mount flags mask in mount args */
+ uint32_t nm_mflags[NFS_MFLAG_BITMAP_LEN]; /* mount flags in mount args */
+ uint32_t nm_flags[NFS_MFLAG_BITMAP_LEN]; /* current mount flags (soft, intr, etc...) */
+ char * nm_realm; /* Kerberos realm to use */
+ char * nm_principal; /* GSS principal to use on initial mount */
+ char * nm_sprinc; /* Kerberos principal of the server */
int nm_state; /* Internal state flags */
- mount_t nm_mountp; /* Vfs structure for this filesystem */
- int nm_numgrps; /* Max. size of groupslist */
- struct vnode *nm_dvp; /* root directory vnode pointer */
- socket_t nm_so; /* Rpc socket */
- int nm_sotype; /* Type of socket */
- int nm_soproto; /* and protocol */
- mbuf_t nm_nam; /* Addr of server */
+ int nm_vers; /* NFS version */
+ struct nfs_funcs *nm_funcs; /* version-specific functions */
+ kauth_cred_t nm_mcred; /* credential used for the mount */
+ mount_t nm_mountp; /* VFS structure for this filesystem */
+ nfsnode_t nm_dnp; /* root directory nfsnode pointer */
+ struct nfs_fs_locations nm_locations; /* file system locations */
+ uint32_t nm_numgrps; /* Max. size of groupslist */
+ TAILQ_HEAD(, nfs_gss_clnt_ctx) nm_gsscl; /* GSS user contexts */
int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
int nm_retry; /* Max retries */
- int nm_srtt[4]; /* Timers for rpcs */
- int nm_sdrtt[4];
- int nm_sent; /* Request send count */
- int nm_cwnd; /* Request send window */
- int nm_timeouts; /* Request timeouts */
- int nm_rsize; /* Max size of read rpc */
- int nm_wsize; /* Max size of write rpc */
- int nm_biosize; /* buffer I/O size */
- int nm_readdirsize; /* Size of a readdir rpc */
- int nm_readahead; /* Num. of blocks to readahead */
- int nm_acregmin; /* reg file min attr cache timeout */
- int nm_acregmax; /* reg file max attr cache timeout */
- int nm_acdirmin; /* dir min attr cache timeout */
- int nm_acdirmax; /* dir max attr cache timeout */
- uid_t nm_authuid; /* Uid for authenticator */
- int nm_authtype; /* Authenticator type */
- int nm_authlen; /* and length */
- char *nm_authstr; /* Authenticator string */
- char *nm_verfstr; /* and the verifier */
- int nm_verflen;
- u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
- NFSKERBKEY_T nm_key; /* and the session key */
- int nm_numuids; /* Number of nfsuid mappings */
- TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */
- LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ];
- TAILQ_HEAD(, nfsbuf) nm_bufq; /* async io buffer queue */
- short nm_bufqlen; /* number of buffers in queue */
- short nm_bufqwant; /* process wants to add to the queue */
- int nm_bufqiods; /* number of iods processing queue */
+ uint32_t nm_rsize; /* Max size of read rpc */
+ uint32_t nm_wsize; /* Max size of write rpc */
+ uint32_t nm_biosize; /* buffer I/O size */
+ uint32_t nm_readdirsize; /* Size of a readdir rpc */
+ uint32_t nm_readahead; /* Num. of blocks to readahead */
+ uint32_t nm_acregmin; /* reg file min attr cache timeout */
+ uint32_t nm_acregmax; /* reg file max attr cache timeout */
+ uint32_t nm_acdirmin; /* dir min attr cache timeout */
+ uint32_t nm_acdirmax; /* dir max attr cache timeout */
+ uint32_t nm_auth; /* security mechanism flavor being used */
+ uint32_t nm_writers; /* Number of nodes open for writing */
+ uint32_t nm_mappers; /* Number of nodes that have mmapped */
+ struct nfs_sec nm_sec; /* acceptable security mechanism flavors */
+ struct nfs_sec nm_servsec; /* server's acceptable security mechanism flavors */
+ fhandle_t *nm_fh; /* initial file handle */
+ uint8_t nm_lockmode; /* advisory file locking mode */
+ /* mount info */
+ uint32_t nm_fsattrstamp; /* timestamp for fs attrs */
+ struct nfs_fsattr nm_fsattr; /* file system attributes */
+ uint64_t nm_verf; /* v3/v4 write verifier */
+ union {
+ struct { /* v2/v3 specific fields */
+ TAILQ_ENTRY(nfsmount) ldlink; /* chain of mounts registered for lockd use */
+ int udp_sent; /* UDP request send count */
+ int udp_cwnd; /* UDP request congestion window */
+ struct nfs_reqqhead udp_cwndq; /* requests waiting on cwnd */
+ struct sockaddr *rqsaddr;/* cached rquota socket address */
+ uint32_t rqsaddrstamp; /* timestamp of rquota socket address */
+ } v3;
+ struct { /* v4 specific fields */
+ struct nfs_client_id *longid; /* client ID, long form */
+ uint64_t mounttime; /* used as client ID verifier */
+ uint64_t clientid; /* client ID, short form */
+ thread_call_t renew_timer; /* RENEW timer call */
+ nfs_fsid fsid; /* NFS file system id */
+ TAILQ_HEAD(, nfsnode) delegations; /* list of nodes with delegations */
+ TAILQ_HEAD(, nfsnode) dreturnq; /* list of nodes with delegations to return */
+ TAILQ_ENTRY(nfsmount) cblink; /* chain of mounts registered for callbacks */
+ uint32_t cbid; /* callback channel identifier */
+ uint32_t cbrefs; /* # callbacks using this mount */
+ } v4;
+ } nm_un;
+ /* common state */
+ TAILQ_HEAD(, nfs_open_owner) nm_open_owners; /* list of open owners */
+ uint32_t nm_stateinuse; /* state in use counter */
+ uint32_t nm_stategenid; /* state generation counter */
+ time_t nm_recover_start; /* recover start time */
+ LIST_HEAD(, nfsnode) nm_monlist; /* list of nodes being monitored */
+ /* async I/O queue */
+ struct nfs_reqqhead nm_resendq; /* async I/O resend queue */
+ struct nfs_reqqhead nm_iodq; /* async I/O request queue */
+ struct nfsiod *nm_niod; /* nfsiod processing this mount */
+ TAILQ_ENTRY(nfsmount) nm_iodlink; /* chain of mounts awaiting nfsiod */
+ int nm_asyncwrites; /* outstanding async I/O writes */
+ /* socket state */
+ uint8_t nm_sofamily; /* (preferred) protocol family of socket */
+ uint8_t nm_sotype; /* (preferred) type of socket */
+ in_port_t nm_nfsport; /* NFS protocol port */
+ in_port_t nm_mountport; /* MOUNT protocol port (v2/v3) */
+ struct nfs_socket_search *nm_nss; /* current socket search structure */
+ struct nfs_socket *nm_nso; /* current socket */
+ struct sockaddr *nm_saddr; /* Address of server */
+ u_short nm_sockflags; /* socket state flags */
+ time_t nm_deadto_start; /* dead timeout start time */
+ time_t nm_reconnect_start; /* reconnect start time */
int nm_tprintf_initial_delay; /* delay first "server down" */
int nm_tprintf_delay; /* delay between "server down" */
- struct { /* fsinfo & (homogenous) pathconf info */
- u_int64_t maxfilesize; /* max size of a file */
- u_long linkmax; /* max # hard links to an object */
- u_long namemax; /* max length of filename component */
- u_char pcflags; /* boolean pathconf properties */
- u_char fsproperties; /* fsinfo properties */
- } nm_fsinfo;
+ int nm_deadtimeout; /* delay between first "server down" and dead set at mount time */
+ int nm_curdeadtimeout; /* current dead timeout. Adjusted by mount state and mobility */
+ int nm_srtt[4]; /* Timers for RPCs */
+ int nm_sdrtt[4];
+ int nm_timeouts; /* Request timeouts */
+ int nm_jbreqs; /* # R_JBTPRINTFMSG requests */
+ int nm_mounterror; /* status of mount connect */
+ TAILQ_ENTRY(nfsmount) nm_pokeq; /* mount poke queue chain */
+ thread_t nm_sockthd; /* socket thread for this mount */
};
+/* macro for checking current mount flags */
+#define NMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_flags, NFS_MFLAG_ ## F)
+/* macros for checking (original) mount attributes/flags */
+#define NM_OMATTR_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mattrs, NFS_MATTR_ ## F)
+#define NM_OMFLAG_GIVEN(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags_mask, NFS_MFLAG_ ## F)
+#define NM_OMFLAG(NMP, F) NFS_BITMAP_ISSET((NMP)->nm_mflags, NFS_MFLAG_ ## F)
-#if defined(KERNEL)
/*
- * Convert mount_t to struct nfsmount*
+ * NFS mount state flags (nm_state)
*/
-#define VFSTONFS(mp) ((mp) ? ((struct nfsmount *)vfs_fsprivate(mp)) : NULL)
+#define NFSSTA_MOUNT_THREAD 0x00000040 /* nfs_mount_connect_thread running */
+#define NFSSTA_MONITOR_SCAN 0x00000080 /* scan of monitored nodes in progress */
+#define NFSSTA_UNMOUNTING 0x00000100 /* an unmount attempt is in progress */
+#define NFSSTA_NEEDSECINFO 0x00000200 /* need to fetch security info */
+#define NFSSTA_CLIENTID 0x00000400 /* short client ID is valid */
+#define NFSSTA_BIGCOOKIES 0x00000800 /* have seen >32bit dir cookies */
+#define NFSSTA_JUKEBOXTIMEO 0x00001000 /* experienced a jukebox timeout */
+#define NFSSTA_LOCKTIMEO 0x00002000 /* experienced a lock req timeout */
+#define NFSSTA_MOUNTED 0x00004000 /* completely mounted */
+#define NFSSTA_LOCKSWORK 0x00008000 /* lock ops have worked. */
+#define NFSSTA_TIMEO 0x00010000 /* experienced a timeout. */
+#define NFSSTA_FORCE 0x00020000 /* doing a forced unmount. */
+#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
+#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
+#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
+#define NFSSTA_SENDING 0x00800000 /* Sending on socket */
+#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
+#define NFSSTA_WANTSND 0x02000000 /* Want above */
+#define NFSSTA_DEAD 0x04000000 /* mount is dead */
+#define NFSSTA_RECOVER 0x08000000 /* mount state needs to be recovered */
+#define NFSSTA_RECOVER_EXPIRED 0x10000000 /* mount state expired */
+#define NFSSTA_REVOKE 0x20000000 /* need to scan for revoked nodes */
+#define NFSSTA_SQUISHY 0x40000000 /* we can ask to be forcibly unmounted */
-#ifndef NFS_TPRINTF_INITIAL_DELAY
-#define NFS_TPRINTF_INITIAL_DELAY 12
-#endif
+/* flags for nm_sockflags */
+#define NMSOCK_READY 0x0001 /* socket is ready for use */
+#define NMSOCK_CONNECTING 0x0002 /* socket is being connect()ed */
+#define NMSOCK_SETUP 0x0004 /* socket/connection is being set up */
+#define NMSOCK_UNMOUNT 0x0008 /* unmounted, no more socket activity */
+#define NMSOCK_HASCONNECTED 0x0010 /* socket has connected before */
+#define NMSOCK_POKE 0x0020 /* socket needs to be poked */
+#define NMSOCK_DISCONNECTING 0x0080 /* socket is being disconnected */
-#ifndef NFS_TPRINTF_DELAY
-#define NFS_TPRINTF_DELAY 30
-#endif
+/* aliases for version-specific fields */
+#define nm_ldlink nm_un.v3.ldlink
+#define nm_sent nm_un.v3.udp_sent
+#define nm_cwnd nm_un.v3.udp_cwnd
+#define nm_cwndq nm_un.v3.udp_cwndq
+#define nm_rqproto nm_un.v3.rqproto
+#define nm_rqsaddr nm_un.v3.rqsaddr
+#define nm_rqsaddrstamp nm_un.v3.rqsaddrstamp
+#define nm_longid nm_un.v4.longid
+#define nm_clientid nm_un.v4.clientid
+#define nm_mounttime nm_un.v4.mounttime
+#define nm_fsid nm_un.v4.fsid
+#define nm_renew_timer nm_un.v4.renew_timer
+#define nm_cbid nm_un.v4.cbid
+#define nm_cblink nm_un.v4.cblink
+#define nm_cbrefs nm_un.v4.cbrefs
+#define nm_delegations nm_un.v4.delegations
+#define nm_dreturnq nm_un.v4.dreturnq
+
+#if defined(KERNEL)
+/*
+ * Macros to convert from various things to mount structures.
+ */
+#define VFSTONFS(mp) ((mp) ? ((struct nfsmount *)vfs_fsprivate(mp)) : NULL)
+#define VTONMP(vp) VFSTONFS(vnode_mount(vp))
+#define NFSTONMP(np) VTONMP(NFSTOV(np))
+#define NFSTOMP(np) (vnode_mount(NFSTOV(np)))
#endif /* KERNEL */
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