1 /* $NetBSD: nfsmount.h,v 1.21 2001/09/15 16:13:02 chs Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95 39 */ 40 41 42 #ifndef _NFS_NFSMOUNT_H_ 43 #define _NFS_NFSMOUNT_H_ 44 45 /* 46 * Arguments to mount NFS 47 */ 48 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 49 struct nfs_args { 50 int version; /* args structure version number */ 51 struct sockaddr *addr; /* file server address */ 52 int addrlen; /* length of address */ 53 int sotype; /* Socket type */ 54 int proto; /* and Protocol */ 55 u_char *fh; /* File handle to be mounted */ 56 int fhsize; /* Size, in bytes, of fh */ 57 int flags; /* flags */ 58 int wsize; /* write size in bytes */ 59 int rsize; /* read size in bytes */ 60 int readdirsize; /* readdir size in bytes */ 61 int timeo; /* initial timeout in .1 secs */ 62 int retrans; /* times to retry send */ 63 int maxgrouplist; /* Max. size of group list */ 64 int readahead; /* # of blocks to readahead */ 65 int leaseterm; /* Term (sec) of lease */ 66 int deadthresh; /* Retrans threshold */ 67 char *hostname; /* server's name */ 68 }; 69 70 /* 71 * NFS mount option flags (nm_flag) 72 */ 73 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 74 #define NFSMNT_WSIZE 0x00000002 /* set write size */ 75 #define NFSMNT_RSIZE 0x00000004 /* set read size */ 76 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 77 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 78 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 79 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 80 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 81 #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 82 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 83 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 84 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 85 #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 86 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 87 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 88 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 89 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 90 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 91 #define NFSMNT_XLATECOOKIE 0x00040000 /* 32<->64 dir cookie xlation */ 92 93 /* 94 * NFS internal flags (nm_iflag) */ 95 96 #define NFSMNT_HASWRITEVERF 0x00000001 /* Has write verifier for V3 */ 97 #define NFSMNT_GOTPATHCONF 0x00000002 /* Got the V3 pathconf info */ 98 #define NFSMNT_GOTFSINFO 0x00000004 /* Got the V3 fsinfo */ 99 #define NFSMNT_MNTD 0x00000008 /* Mnt server for mnt point */ 100 #define NFSMNT_DISMINPROG 0x00000010 /* Dismount in progress */ 101 #define NFSMNT_DISMNT 0x00000020 /* Dismounted */ 102 #define NFSMNT_SNDLOCK 0x00000040 /* Send socket lock */ 103 #define NFSMNT_WANTSND 0x00000080 /* Want above */ 104 #define NFSMNT_RCVLOCK 0x00000100 /* Rcv socket lock */ 105 #define NFSMNT_WANTRCV 0x00000200 /* Want above */ 106 #define NFSMNT_WAITAUTH 0x00000400 /* Wait for authentication */ 107 #define NFSMNT_HASAUTH 0x00000800 /* Has authenticator */ 108 #define NFSMNT_WANTAUTH 0x00001000 /* Wants an authenticator */ 109 #define NFSMNT_AUTHERR 0x00002000 /* Authentication error */ 110 #define NFSMNT_SWAPCOOKIE 0x00004000 /* XDR encode dir cookies */ 111 112 #ifdef _KERNEL 113 /* 114 * Mount structure. 115 * One allocated on every NFS mount. 116 * Holds NFS specific information for mount. 117 */ 118 struct nfsmount { 119 int nm_flag; /* Flags for soft/hard... */ 120 struct mount *nm_mountp; /* Vfs structure for this filesystem */ 121 int nm_numgrps; /* Max. size of groupslist */ 122 struct vnode *nm_vnode; 123 struct socket *nm_so; /* Rpc socket */ 124 int nm_sotype; /* Type of socket */ 125 int nm_soproto; /* and protocol */ 126 int nm_soflags; /* pr_flags for socket protocol */ 127 struct mbuf *nm_nam; /* Addr of server */ 128 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */ 129 int nm_retry; /* Max retries */ 130 int nm_srtt[4]; /* Timers for rpcs */ 131 int nm_sdrtt[4]; 132 int nm_sent; /* Request send count */ 133 int nm_cwnd; /* Request send window */ 134 int nm_timeouts; /* Request timeouts */ 135 int nm_deadthresh; /* Threshold of timeouts-->dead server*/ 136 int nm_rsize; /* Max size of read rpc */ 137 int nm_wsize; /* Max size of write rpc */ 138 int nm_readdirsize; /* Size of a readdir rpc */ 139 int nm_readahead; /* Num. of blocks to readahead */ 140 int nm_leaseterm; /* Term (sec) for NQNFS lease */ 141 CIRCLEQ_HEAD(, nfsnode) nm_timerhead; /* Head of lease timer queue */ 142 struct vnode *nm_inprog; /* Vnode in prog by nqnfs_clientd() */ 143 uid_t nm_authuid; /* Uid for authenticator */ 144 int nm_authtype; /* Authenticator type */ 145 int nm_authlen; /* and length */ 146 char *nm_authstr; /* Authenticator string */ 147 char *nm_verfstr; /* and the verifier */ 148 int nm_verflen; 149 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */ 150 NFSKERBKEY_T nm_key; /* and the session key */ 151 int nm_numuids; /* Number of nfsuid mappings */ 152 TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */ 153 LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ]; 154 TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */ 155 short nm_bufqlen; /* number of buffers in queue */ 156 short nm_bufqwant; /* process wants to add to the queue */ 157 int nm_bufqiods; /* number of iods processing queue */ 158 u_int64_t nm_maxfilesize; /* maximum file size */ 159 int nm_iflag; /* internal flags */ 160 int nm_waiters; /* number of waiting listeners.. */ 161 }; 162 163 /* 164 * Convert mount ptr to nfsmount ptr. 165 */ 166 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) 167 168 /* 169 * Prototypes for NFS mount operations 170 */ 171 int nfs_mount __P((struct mount *mp, const char *path, void *data, 172 struct nameidata *ndp, struct proc *p)); 173 int mountnfs __P((struct nfs_args *argp, struct mount *mp, 174 struct mbuf *nam, const char *pth, const char *hst, 175 struct vnode **vpp, struct proc *p)); 176 int nfs_mountroot __P((void)); 177 void nfs_decode_args __P((struct nfsmount *, struct nfs_args *)); 178 int nfs_start __P((struct mount *mp, int flags, struct proc *p)); 179 int nfs_unmount __P((struct mount *mp, int mntflags, struct proc *p)); 180 int nfs_root __P((struct mount *mp, struct vnode **vpp)); 181 int nfs_quotactl __P((struct mount *mp, int cmds, uid_t uid, caddr_t arg, 182 struct proc *p)); 183 int nfs_statfs __P((struct mount *mp, struct statfs *sbp, struct proc *p)); 184 int nfs_sync __P((struct mount *mp, int waitfor, struct ucred *cred, 185 struct proc *p)); 186 int nfs_vget __P((struct mount *, ino_t, struct vnode **)); 187 int nfs_fhtovp __P((struct mount *mp, struct fid *fhp, struct vnode **vpp)); 188 int nfs_checkexp __P((struct mount *mp, struct mbuf *nam, int *exflagsp, 189 struct ucred **credanonp)); 190 int nfs_vptofh __P((struct vnode *vp, struct fid *fhp)); 191 int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 192 struct proc *)); 193 void nfs_vfs_init __P((void)); 194 void nfs_vfs_reinit __P((void)); 195 void nfs_vfs_done __P((void)); 196 197 /* 198 * Prototypes for miscellaneous exported NFS functions. 199 */ 200 void nfs_init __P((void)); 201 202 #endif /* _KERNEL */ 203 204 #endif 205