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 #include <sys/mutex.h> 46 #include <sys/thread.h> /* token */ 47 48 enum nfssvc_state { 49 NFSSVC_INIT, 50 NFSSVC_WAITING, 51 NFSSVC_PENDING, 52 NFSSVC_STOPPING, 53 NFSSVC_DONE 54 }; 55 56 /* 57 * Mount structure. 58 * One allocated on every NFS mount. 59 * Holds NFS specific information for mount. 60 */ 61 struct nfsmount { 62 int nm_flag; /* Flags for soft/hard... */ 63 int nm_state; /* Internal state flags */ 64 TAILQ_ENTRY(nfsmount) nm_entry; /* entry in nfsmountq */ 65 struct mtx nm_rxlock; /* receive socket lock */ 66 struct mtx nm_txlock; /* send socket lock */ 67 thread_t nm_rxthread; 68 thread_t nm_txthread; 69 enum nfssvc_state nm_rxstate; 70 enum nfssvc_state nm_txstate; 71 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 72 int nm_numgrps; /* Max. size of groupslist */ 73 u_char nm_fh[NFSX_V3FHMAX]; /* File handle of root dir */ 74 int nm_fhsize; /* Size of root file handle */ 75 struct socket *nm_so; /* Rpc socket */ 76 int nm_sotype; /* Type of socket */ 77 int nm_soproto; /* and protocol */ 78 int nm_soflags; /* pr_flags for socket protocol */ 79 struct sockaddr *nm_nam; /* Addr of server */ 80 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 81 int nm_retry; /* Max retries */ 82 int nm_srtt[6]; /* Timers for rpcs (see proct[]) */ 83 int nm_sdrtt[6]; 84 int nm_maxasync_scaled; /* Used to control congestion */ 85 int nm_timeouts; /* Request timeouts */ 86 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 87 u_int32_t nm_lastreprocnum; /* Last resent procnum for dup detect */ 88 int nm_rsize; /* Max size of read rpc */ 89 int nm_wsize; /* Max size of write rpc */ 90 int nm_readdirsize; /* Size of a readdir rpc */ 91 int nm_readahead; /* Num. of blocks to readahead */ 92 int nm_unused01; /* Term (sec) for NQNFS lease */ 93 int nm_acdirmin; /* Directory attr cache min lifetime */ 94 int nm_acdirmax; /* Directory attr cache max lifetime */ 95 int nm_acregmin; /* Reg file attr cache min lifetime */ 96 int nm_acregmax; /* Reg file attr cache max lifetime */ 97 uid_t nm_authuid; /* Uid for authenticator */ 98 int nm_authtype; /* Authenticator type */ 99 int nm_authlen; /* and length */ 100 char *nm_authstr; /* Authenticator string */ 101 char *nm_verfstr; /* and the verifier */ 102 int nm_verflen; 103 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 104 NFSKERBKEY_T nm_key; /* and the session key */ 105 int nm_numuids; /* Number of nfsuid mappings */ 106 TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */ 107 LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ]; 108 TAILQ_HEAD(, bio) nm_bioq; /* async io buffer queue */ 109 TAILQ_HEAD(, nfsreq) nm_reqtxq; /* nfsreq queue - tx processing */ 110 TAILQ_HEAD(, nfsreq) nm_reqrxq; /* nfsreq queue - rx processing */ 111 TAILQ_HEAD(, nfsreq) nm_reqq; /* nfsreq queue - pending */ 112 int nm_bioqlen; /* number of buffers in queue */ 113 int nm_reqqlen; /* number of nfsreqs in queue */ 114 u_int64_t nm_maxfilesize; /* maximum file size */ 115 struct ucred *nm_cred; /* 'root' credential */ 116 struct lwkt_token nm_token; /* protective token */ 117 }; 118 119 120 #if defined(_KERNEL) 121 /* 122 * Convert mount ptr to nfsmount ptr. 123 */ 124 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 125 extern void nfs_free_mount(struct nfsmount *nmp); 126 extern void nfs_setvtype(struct vnode *, enum vtype); 127 128 #endif 129 130 #endif 131