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 8.3 (Berkeley) 3/30/95 37 * $FreeBSD: src/sys/nfs/nfsmount.h,v 1.17 1999/12/29 04:54:54 peter Exp $ 38 * $DragonFly: src/sys/vfs/nfs/nfsmount.h,v 1.8 2006/04/07 06:38:33 dillon Exp $ 39 */ 40 41 42 #ifndef _NFS_NFSMOUNT_H_ 43 #define _NFS_NFSMOUNT_H_ 44 45 /* 46 * Mount structure. 47 * One allocated on every NFS mount. 48 * Holds NFS specific information for mount. 49 */ 50 struct nfsmount { 51 int nm_flag; /* Flags for soft/hard... */ 52 int nm_state; /* Internal state flags */ 53 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 54 int nm_numgrps; /* Max. size of groupslist */ 55 u_char nm_fh[NFSX_V3FHMAX]; /* File handle of root dir */ 56 int nm_fhsize; /* Size of root file handle */ 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 sockaddr *nm_nam; /* Addr of server */ 62 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 63 int nm_retry; /* Max retries */ 64 int nm_srtt[4]; /* Timers for rpcs */ 65 int nm_sdrtt[4]; 66 int nm_sent; /* Request send count */ 67 int nm_cwnd; /* Request send window */ 68 int nm_timeouts; /* Request timeouts */ 69 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 70 int nm_rsize; /* Max size of read rpc */ 71 int nm_wsize; /* Max size of write rpc */ 72 int nm_readdirsize; /* Size of a readdir rpc */ 73 int nm_readahead; /* Num. of blocks to readahead */ 74 int nm_unused01; /* Term (sec) for NQNFS lease */ 75 int nm_acdirmin; /* Directory attr cache min lifetime */ 76 int nm_acdirmax; /* Directory attr cache max lifetime */ 77 int nm_acregmin; /* Reg file attr cache min lifetime */ 78 int nm_acregmax; /* Reg file attr cache max lifetime */ 79 uid_t nm_authuid; /* Uid for authenticator */ 80 int nm_authtype; /* Authenticator type */ 81 int nm_authlen; /* and length */ 82 char *nm_authstr; /* Authenticator string */ 83 char *nm_verfstr; /* and the verifier */ 84 int nm_verflen; 85 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 86 NFSKERBKEY_T nm_key; /* and the session key */ 87 int nm_numuids; /* Number of nfsuid mappings */ 88 TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */ 89 LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ]; 90 TAILQ_HEAD(, bio) nm_bioq; /* async io buffer queue */ 91 short nm_bioqlen; /* number of buffers in queue */ 92 short nm_bioqwant; /* process wants to add to the queue */ 93 int nm_bioqiods; /* number of iods processing queue */ 94 u_int64_t nm_maxfilesize; /* maximum file size */ 95 struct ucred *nm_cred; /* 'root' credential */ 96 struct thread *nm_rcvlock_td; /* debugging */ 97 }; 98 99 100 #if defined(_KERNEL) 101 /* 102 * Convert mount ptr to nfsmount ptr. 103 */ 104 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 105 extern void nfs_free_mount(struct nfsmount *nmp); 106 extern void nfs_setvtype(struct vnode *, enum vtype); 107 108 #endif 109 110 #endif 111