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 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95 33 * $FreeBSD$ 34 */ 35 36 #ifndef _NFSCLIENT_NFSMOUNT_H_ 37 #define _NFSCLIENT_NFSMOUNT_H_ 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 int nm_state; /* Internal state flags */ 47 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 48 int nm_numgrps; /* Max. size of groupslist */ 49 u_char nm_fh[NFSX_V4FH]; /* File handle of root dir */ 50 int nm_fhsize; /* Size of root file handle */ 51 struct rpcclnt nm_rpcclnt; /* rpc state */ 52 struct socket *nm_so; /* Rpc socket */ 53 int nm_sotype; /* Type of socket */ 54 int nm_soproto; /* and protocol */ 55 int nm_soflags; /* pr_flags for socket protocol */ 56 struct sockaddr *nm_nam; /* Addr of server */ 57 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 58 int nm_retry; /* Max retries */ 59 int nm_srtt[4]; /* Timers for rpcs */ 60 int nm_sdrtt[4]; 61 int nm_sent; /* Request send count */ 62 int nm_cwnd; /* Request send window */ 63 int nm_timeouts; /* Request timeouts */ 64 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 65 int nm_rsize; /* Max size of read rpc */ 66 int nm_wsize; /* Max size of write rpc */ 67 int nm_readdirsize; /* Size of a readdir rpc */ 68 int nm_readahead; /* Num. of blocks to readahead */ 69 int nm_acdirmin; /* Directory attr cache min lifetime */ 70 int nm_acdirmax; /* Directory attr cache max lifetime */ 71 int nm_acregmin; /* Reg file attr cache min lifetime */ 72 int nm_acregmax; /* Reg file attr cache max lifetime */ 73 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 74 TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */ 75 short nm_bufqlen; /* number of buffers in queue */ 76 short nm_bufqwant; /* process wants to add to the queue */ 77 int nm_bufqiods; /* number of iods processing queue */ 78 u_int64_t nm_maxfilesize; /* maximum file size */ 79 struct nfs_rpcops *nm_rpcops; 80 81 /* NFSv4 */ 82 uint64_t nm_clientid; 83 fsid_t nm_fsid; 84 u_int nm_lease_time; 85 time_t nm_last_renewal; 86 }; 87 88 #if defined(_KERNEL) 89 /* 90 * Convert mount ptr to nfsmount ptr. 91 */ 92 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 93 94 #endif 95 96 #endif 97