1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsmount.h 8.1 (Berkeley) 6/10/93 37 */ 38 39 /* 40 * Mount structure. 41 * One allocated on every NFS mount. 42 * Holds NFS specific information for mount. 43 */ 44 struct nfsmount { 45 int nm_flag; /* Flags for soft/hard... */ 46 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 47 int nm_numgrps; /* Max. size of groupslist */ 48 nfsv2fh_t nm_fh; /* File handle of root dir */ 49 struct socket *nm_so; /* Rpc socket */ 50 int nm_sotype; /* Type of socket */ 51 int nm_soproto; /* and protocol */ 52 int nm_soflags; /* pr_flags for socket protocol */ 53 struct mbuf *nm_nam; /* Addr of server */ 54 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 55 int nm_retry; /* Max retries */ 56 int nm_srtt[4]; /* Timers for rpcs */ 57 int nm_sdrtt[4]; 58 int nm_sent; /* Request send count */ 59 int nm_cwnd; /* Request send window */ 60 int nm_timeouts; /* Request timeouts */ 61 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 62 int nm_rsize; /* Max size of read rpc */ 63 int nm_wsize; /* Max size of write rpc */ 64 int nm_readahead; /* Num. of blocks to readahead */ 65 int nm_leaseterm; /* Term (sec) for NQNFS lease */ 66 struct nfsnode *nm_tnext; /* Head of lease timer queue */ 67 struct nfsnode *nm_tprev; 68 struct vnode *nm_inprog; /* Vnode in prog by nqnfs_clientd() */ 69 uid_t nm_authuid; /* Uid for authenticator */ 70 int nm_authtype; /* Authenticator type */ 71 int nm_authlen; /* and length */ 72 char *nm_authstr; /* Authenticator string */ 73 }; 74 75 #ifdef KERNEL 76 /* 77 * Convert mount ptr to nfsmount ptr. 78 */ 79 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 80 #endif /* KERNEL */ 81 82 /* 83 * Prototypes for NFS mount operations 84 */ 85 int nfs_mount __P(( 86 struct mount *mp, 87 char *path, 88 caddr_t data, 89 struct nameidata *ndp, 90 struct proc *p)); 91 int nfs_start __P(( 92 struct mount *mp, 93 int flags, 94 struct proc *p)); 95 int nfs_unmount __P(( 96 struct mount *mp, 97 int mntflags, 98 struct proc *p)); 99 int nfs_root __P(( 100 struct mount *mp, 101 struct vnode **vpp)); 102 int nfs_quotactl __P(( 103 struct mount *mp, 104 int cmds, 105 uid_t uid, 106 caddr_t arg, 107 struct proc *p)); 108 int nfs_statfs __P(( 109 struct mount *mp, 110 struct statfs *sbp, 111 struct proc *p)); 112 int nfs_sync __P(( 113 struct mount *mp, 114 int waitfor, 115 struct ucred *cred, 116 struct proc *p)); 117 int nfs_fhtovp __P(( 118 struct mount *mp, 119 struct fid *fhp, 120 struct mbuf *nam, 121 struct vnode **vpp, 122 int *exflagsp, 123 struct ucred **credanonp)); 124 int nfs_vptofh __P(( 125 struct vnode *vp, 126 struct fid *fhp)); 127 int nfs_init __P(()); 128