1 /* $OpenBSD: nfsmount.h,v 1.28 2018/04/09 09:39:53 mpi Exp $ */ 2 /* $NetBSD: nfsmount.h,v 1.10 1996/02/18 11:54:03 fvdl Exp $ */ 3 4 /* 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Rick Macklem at The University of Guelph. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95 36 */ 37 38 39 #ifndef _NFS_NFSMOUNT_H_ 40 #define _NFS_NFSMOUNT_H_ 41 42 /* 43 * Mount structure. 44 * One allocated on every NFS mount. 45 * Holds NFS specific information for mount. 46 */ 47 struct nfsmount { 48 RBT_HEAD(nfs_nodetree, nfsnode) 49 nm_ntree; /* filehandle/node tree */ 50 TAILQ_HEAD(reqs, nfsreq) 51 nm_reqsq; /* request queue for this mount. */ 52 struct timeout nm_rtimeout; /* timeout (scans/resends nm_reqsq). */ 53 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 54 struct vnode *nm_vnode; /* vnode of root dir */ 55 int nm_flag; /* Flags for soft/hard... */ 56 int nm_numgrps; /* Max. size of groupslist */ 57 struct socket *nm_so; /* Rpc socket */ 58 int nm_sotype; /* Type of socket */ 59 int nm_soproto; /* and protocol */ 60 int nm_soflags; /* pr_flags for socket protocol */ 61 struct mbuf *nm_nam; /* Addr of server */ 62 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 63 int nm_retry; /* Max retries */ 64 int nm_srtt[NFS_MAX_TIMER]; /* RTT Timers for RPCs */ 65 int nm_sdrtt[NFS_MAX_TIMER]; 66 int nm_sent; /* Request send count */ 67 int nm_cwnd; /* Request send window */ 68 int nm_timeouts; /* Request timeouts */ 69 int nm_rsize; /* Max size of read rpc */ 70 int nm_wsize; /* Max size of write rpc */ 71 int nm_readdirsize; /* Size of a readdir rpc */ 72 int nm_readahead; /* Num. of blocks to readahead */ 73 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 74 u_short nm_acregmin; /* Attr cache file recently modified */ 75 u_short nm_acregmax; /* ac file not recently modified */ 76 u_short nm_acdirmin; /* ac for dir recently modified */ 77 u_short nm_acdirmax; /* ac for dir not recently modified */ 78 }; 79 80 #ifdef _KERNEL 81 82 /* Convert mount ptr to nfsmount ptr: */ 83 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 84 85 /* Prototypes for NFS mount operations: */ 86 int nfs_mount(struct mount *, const char *, void *, struct nameidata *, 87 struct proc *); 88 int nfs_fsinfo(struct nfsmount *, struct vnode *, struct ucred *, 89 struct proc *); 90 void nfs_init(void); 91 92 #endif /* _KERNEL */ 93 94 #endif 95