/* $NetBSD: nfsmount.h,v 1.55 2026/05/28 13:38:06 christos 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. 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. * * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95 */ #ifndef _NFS_NFSMOUNT_H_ #define _NFS_NFSMOUNT_H_ #if defined(_KERNEL) && !defined(NFS_ARGS_ONLY) #include <sys/condvar.h> #include <sys/rwlock.h> #include <sys/mutex.h> #include <sys/disk.h> #endif /* * Arguments to mount NFS */ #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ struct nfs_args { int version; /* args structure version number */ struct sockaddr *addr; /* file server address */ int addrlen; /* length of address */ int sotype; /* Socket type */ int proto; /* and Protocol */ u_char *fh; /* File handle to be mounted */ int fhsize; /* Size, in bytes, of fh */ int flags; /* flags */ int wsize; /* write size in bytes */ int rsize; /* read size in bytes */ int readdirsize; /* readdir size in bytes */ int timeo; /* initial timeout in .1 secs */ int retrans; /* times to retry send */ int maxgrouplist; /* Max. size of group list */ int readahead; /* # of blocks to readahead */ int leaseterm; /* Ignored; Term (sec) of lease */ int deadthresh; /* Retrans threshold */ char *hostname; /* server's name */ }; /* * NFS mount option flags (nm_flag) */ #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ #define NFSMNT_WSIZE 0x00000002 /* set write size */ #define NFSMNT_RSIZE 0x00000004 /* set read size */ #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ #define NFSMNT_LEASETERM 0x00001000 /* Ignored; lease term (nqnfs) */ #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ #define NFSMNT_XLATECOOKIE 0x00040000 /* 32<->64 dir cookie xlation */ #define NFSMNT_NOAC 0x00080000 /* Turn off attribute cache */ #define NFSMNT_NOWCCMSG 0x00100000 /* Turn off attribute wcc messages */ #define NFSMNT_BITS "\177\20" \ "b\00soft\0b\01wsize\0b\02rsize\0b\03timeo\0" \ "b\04retrans\0b\05maxgrps\0b\06intr\0b\07noconn\0" \ "b\10nqnfs\0b\11nfsv3\0b\12kerb\0b\13dumbtimr\0" \ "b\14leaseterm\0b\15readahead\0b\16deadthresh\0b\17resvport\0" \ "b\20rdirplus\0b\21readdirsize\0b\22xlatecookie\0b\23noac\0" \ "b\24nowccmsg\0" /* * NFS internal flags (nm_iflag) */ #define NFSMNT_HASWRITEVERF 0x00000001 /* Has write verifier for V3 */ #define NFSMNT_GOTPATHCONF 0x00000002 /* Got the V3 pathconf info */ #define NFSMNT_GOTFSINFO 0x00000004 /* Got the V3 fsinfo */ #define NFSMNT_MNTD 0x00000008 /* Mnt server for mnt point */ #define NFSMNT_DISMNT 0x00000020 /* Dismounted */ #define NFSMNT_SNDLOCK 0x00000040 /* Send socket lock */ #define NFSMNT_WANTSND 0x00000080 /* Want above */ #define NFSMNT_RCVLOCK 0x00000100 /* Rcv socket lock */ #define NFSMNT_WANTRCV 0x00000200 /* Want above */ #define NFSMNT_WAITAUTH 0x00000400 /* Wait for authentication */ #define NFSMNT_HASAUTH 0x00000800 /* Has authenticator */ #define NFSMNT_WANTAUTH 0x00001000 /* Wants an authenticator */ #define NFSMNT_AUTHERR 0x00002000 /* Authentication error */ #define NFSMNT_SWAPCOOKIE 0x00004000 /* XDR encode dir cookies */ #define NFSMNT_STALEWRITEVERF 0x00008000 /* Write verifier is changing */ #define NFSMNT_WCCKLUDGE 0x00010000 /* see nfs_check_wccdata() */ #define NFSMNT_DISMNTFORCE 0x00020000 /* force unmount requested */ #if defined(_KERNEL) && !defined(NFS_ARGS_ONLY) /* * Mount structure. * One allocated on every NFS mount. * Holds NFS specific information for mount. */ struct nfsmount { kmutex_t nm_lock; /* Lock for this structure */ kcondvar_t nm_rcvcv; kcondvar_t nm_sndcv; int nm_flag; /* Flags for soft/hard... */ struct mount *nm_mountp; /* Vfs structure for this filesystem */ int nm_numgrps; /* Max. size of groupslist */ struct vnode *nm_vnode; struct socket *nm_so; /* Rpc socket */ int nm_sotype; /* Type of socket */ int nm_soproto; /* and protocol */ int nm_soflags; /* pr_flags for socket protocol */ struct mbuf *nm_nam; /* Addr of server */ 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_deadthresh; /* Threshold of timeouts-->dead server*/ int nm_rsize; /* Max size of read rpc */ int nm_wsize; /* Max size of write rpc */ int nm_readdirsize; /* Size of a readdir rpc */ int nm_readahead; /* Num. of blocks to readahead */ 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; krwlock_t nm_writeverflock; /* lock for below */ u_char nm_writeverf[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(, buf) nm_bufq; /* async io buffer queue */ int nm_bufqlen; /* number of buffers in queue */ kcondvar_t nm_aiocv; int nm_bufqiods; /* number of iods processing queue */ u_int64_t nm_maxfilesize; /* maximum file size */ int nm_iflag; /* internal flags */ int nm_waiters; /* number of waiting listeners.. */ kcondvar_t nm_disconcv; long nm_wcckludgetime; /* see nfs_check_wccdata() */ struct io_stats *nm_stats; /* per nfs mount statistics */ }; /* * Convert mount ptr to nfsmount ptr. */ #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) /* * Prototypes for NFS mount operations */ VFS_PROTOS(nfs); int mountnfs(struct nfs_args *argp, struct mount *mp, struct mbuf *nam, const char *pth, const char *hst, struct vnode **vpp, struct lwp *p); void nfs_decode_args(struct nfsmount *, struct nfs_args *, struct lwp *l); int nfs_fsinfo(struct nfsmount *, struct vnode *, kauth_cred_t, struct lwp *); void nfs_vfs_init(void); void nfs_vfs_done(void); #endif /* _KERNEL */ #endif /* _NFS_NFSMOUNT_H_ */
