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. 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: src/sys/nfs/nfsmount.h,v 1.17 1999/12/29 04:54:54 peter Exp $ 34 * $DragonFly: src/sys/vfs/nfs/nfsmount.h,v 1.8 2006/04/07 06:38:33 dillon Exp $ 35 */ 36 37 38 #ifndef _NFS_NFSMOUNT_H_ 39 #define _NFS_NFSMOUNT_H_ 40 41 #include <sys/mutex.h> 42 #include <sys/thread.h> /* token */ 43 44 enum nfssvc_state { 45 NFSSVC_INIT, 46 NFSSVC_WAITING, 47 NFSSVC_PENDING, 48 NFSSVC_STOPPING, 49 NFSSVC_DONE 50 }; 51 52 /* 53 * Mount structure. 54 * One allocated on every NFS mount. 55 * Holds NFS specific information for mount. 56 */ 57 struct nfsmount { 58 int nm_flag; /* Flags for soft/hard... */ 59 int nm_state; /* Internal state flags */ 60 TAILQ_ENTRY(nfsmount) nm_entry; /* entry in nfsmountq */ 61 struct mtx nm_rxlock; /* receive socket lock */ 62 struct mtx nm_txlock; /* send socket lock */ 63 thread_t nm_rxthread; 64 thread_t nm_txthread; 65 enum nfssvc_state nm_rxstate; 66 enum nfssvc_state nm_txstate; 67 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 68 struct malloc_type *nm_mnode_obj; /* kmalloc store for nfsnode */ 69 int nm_numgrps; /* Max. size of groupslist */ 70 u_char nm_fh[NFSX_V3FHMAX]; /* File handle of root dir */ 71 int nm_fhsize; /* Size of root file handle */ 72 struct socket *nm_so; /* Rpc socket */ 73 int nm_sotype; /* Type of socket */ 74 int nm_soproto; /* and protocol */ 75 int nm_soflags; /* pr_flags for socket protocol */ 76 struct sockaddr *nm_nam; /* Addr of server */ 77 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 78 int nm_retry; /* Max retries */ 79 int nm_srtt[6]; /* Timers for rpcs (see proct[]) */ 80 int nm_sdrtt[6]; 81 int nm_maxasync_scaled; /* Used to control congestion */ 82 int nm_timeouts; /* Request timeouts */ 83 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 84 u_int32_t nm_lastreprocnum; /* Last resent procnum for dup detect */ 85 int nm_rsize; /* Max size of read rpc */ 86 int nm_wsize; /* Max size of write rpc */ 87 int nm_readdirsize; /* Size of a readdir rpc */ 88 int nm_readahead; /* Num. of blocks to readahead */ 89 int nm_unused01; /* Term (sec) for NQNFS lease */ 90 int nm_acdirmin; /* Directory attr cache min lifetime */ 91 int nm_acdirmax; /* Directory attr cache max lifetime */ 92 int nm_acregmin; /* Reg file attr cache min lifetime */ 93 int nm_acregmax; /* Reg file attr cache max lifetime */ 94 uid_t nm_authuid; /* Uid for authenticator */ 95 int nm_authtype; /* Authenticator type */ 96 int nm_authlen; /* and length */ 97 char *nm_authstr; /* Authenticator string */ 98 char *nm_verfstr; /* and the verifier */ 99 int nm_verflen; 100 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 101 NFSKERBKEY_T nm_key; /* and the session key */ 102 int nm_numuids; /* Number of nfsuid mappings */ 103 TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */ 104 LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ]; 105 TAILQ_HEAD(, bio) nm_bioq; /* async io buffer queue */ 106 TAILQ_HEAD(, nfsreq) nm_reqtxq; /* nfsreq queue - tx processing */ 107 TAILQ_HEAD(, nfsreq) nm_reqrxq; /* nfsreq queue - rx processing */ 108 TAILQ_HEAD(, nfsreq) nm_reqq; /* nfsreq queue - pending */ 109 int nm_bioqlen; /* number of buffers in queue */ 110 int nm_reqqlen; /* number of nfsreqs in queue */ 111 u_int64_t nm_maxfilesize; /* maximum file size */ 112 struct ucred *nm_cred; /* 'root' credential */ 113 struct lwkt_token nm_token; /* protective token */ 114 }; 115 116 117 #if defined(_KERNEL) 118 /* 119 * Convert mount ptr to nfsmount ptr. 120 */ 121 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 122 extern void nfs_free_mount(struct nfsmount *nmp); 123 extern void nfs_setvtype(struct vnode *, enum vtype); 124 125 #endif 126 127 #endif 128