| 1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | * |
| 33 | * @(#)mfsnode.h 7.3 (Berkeley) 4/16/91 |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * This structure defines the control data for the memory |
| 38 | * based file system. |
| 39 | */ |
| 40 | |
| 41 | struct mfsnode { |
| 42 | struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ |
| 43 | caddr_t mfs_baseoff; /* base of file system in memory */ |
| 44 | long mfs_size; /* size of memory file system */ |
| 45 | pid_t mfs_pid; /* supporting process pid */ |
| 46 | struct buf *mfs_buflist; /* list of I/O requests */ |
| 47 | long mfs_spare[4]; |
| 48 | }; |
| 49 | |
| 50 | /* |
| 51 | * Convert between mfsnode pointers and vnode pointers |
| 52 | */ |
| 53 | #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) |
| 54 | #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) |
| 55 | |
| 56 | /* |
| 57 | * Prototypes for MFS operations on vnodes. |
| 58 | */ |
| 59 | int mfs_badop(); |
| 60 | #define mfs_lookup ((int (*) __P(( \ |
| 61 | struct vnode *vp, \ |
| 62 | struct nameidata *ndp, \ |
| 63 | struct proc *p))) mfs_badop) |
| 64 | #define mfs_create ((int (*) __P(( \ |
| 65 | struct nameidata *ndp, \ |
| 66 | struct vattr *vap, \ |
| 67 | struct proc *p))) mfs_badop) |
| 68 | #define mfs_mknod ((int (*) __P(( \ |
| 69 | struct nameidata *ndp, \ |
| 70 | struct vattr *vap, \ |
| 71 | struct ucred *cred, \ |
| 72 | struct proc *p))) mfs_badop) |
| 73 | int mfs_open __P(( |
| 74 | struct vnode *vp, |
| 75 | int mode, |
| 76 | struct ucred *cred, |
| 77 | struct proc *p)); |
| 78 | int mfs_close __P(( |
| 79 | struct vnode *vp, |
| 80 | int fflag, |
| 81 | struct ucred *cred, |
| 82 | struct proc *p)); |
| 83 | #define mfs_access ((int (*) __P(( \ |
| 84 | struct vnode *vp, \ |
| 85 | int mode, \ |
| 86 | struct ucred *cred, \ |
| 87 | struct proc *p))) mfs_badop) |
| 88 | #define mfs_getattr ((int (*) __P(( \ |
| 89 | struct vnode *vp, \ |
| 90 | struct vattr *vap, \ |
| 91 | struct ucred *cred, \ |
| 92 | struct proc *p))) mfs_badop) |
| 93 | #define mfs_setattr ((int (*) __P(( \ |
| 94 | struct vnode *vp, \ |
| 95 | struct vattr *vap, \ |
| 96 | struct ucred *cred, \ |
| 97 | struct proc *p))) mfs_badop) |
| 98 | #define mfs_read ((int (*) __P(( \ |
| 99 | struct vnode *vp, \ |
| 100 | struct uio *uio, \ |
| 101 | int ioflag, \ |
| 102 | struct ucred *cred))) mfs_badop) |
| 103 | #define mfs_write ((int (*) __P(( \ |
| 104 | struct vnode *vp, \ |
| 105 | struct uio *uio, \ |
| 106 | int ioflag, \ |
| 107 | struct ucred *cred))) mfs_badop) |
| 108 | int mfs_ioctl __P(( |
| 109 | struct vnode *vp, |
| 110 | int command, |
| 111 | caddr_t data, |
| 112 | int fflag, |
| 113 | struct ucred *cred, |
| 114 | struct proc *p)); |
| 115 | #define mfs_select ((int (*) __P(( \ |
| 116 | struct vnode *vp, \ |
| 117 | int which, \ |
| 118 | int fflags, \ |
| 119 | struct ucred *cred, \ |
| 120 | struct proc *p))) mfs_badop) |
| 121 | #define mfs_mmap ((int (*) __P(( \ |
| 122 | struct vnode *vp, \ |
| 123 | int fflags, \ |
| 124 | struct ucred *cred, \ |
| 125 | struct proc *p))) mfs_badop) |
| 126 | #define mfs_fsync ((int (*) __P(( \ |
| 127 | struct vnode *vp, \ |
| 128 | int fflags, \ |
| 129 | struct ucred *cred, \ |
| 130 | int waitfor, \ |
| 131 | struct proc *p))) mfs_badop) |
| 132 | #define mfs_seek ((int (*) __P(( \ |
| 133 | struct vnode *vp, \ |
| 134 | off_t oldoff, \ |
| 135 | off_t newoff, \ |
| 136 | struct ucred *cred))) mfs_badop) |
| 137 | #define mfs_remove ((int (*) __P(( \ |
| 138 | struct nameidata *ndp, \ |
| 139 | struct proc *p))) mfs_badop) |
| 140 | #define mfs_link ((int (*) __P(( \ |
| 141 | struct vnode *vp, \ |
| 142 | struct nameidata *ndp, \ |
| 143 | struct proc *p))) mfs_badop) |
| 144 | #define mfs_rename ((int (*) __P(( \ |
| 145 | struct nameidata *fndp, \ |
| 146 | struct nameidata *tdnp, \ |
| 147 | struct proc *p))) mfs_badop) |
| 148 | #define mfs_mkdir ((int (*) __P(( \ |
| 149 | struct nameidata *ndp, \ |
| 150 | struct vattr *vap, \ |
| 151 | struct proc *p))) mfs_badop) |
| 152 | #define mfs_rmdir ((int (*) __P(( \ |
| 153 | struct nameidata *ndp, \ |
| 154 | struct proc *p))) mfs_badop) |
| 155 | #define mfs_symlink ((int (*) __P(( \ |
| 156 | struct nameidata *ndp, \ |
| 157 | struct vattr *vap, \ |
| 158 | char *target, \ |
| 159 | struct proc *p))) mfs_badop) |
| 160 | #define mfs_readdir ((int (*) __P(( \ |
| 161 | struct vnode *vp, \ |
| 162 | struct uio *uio, \ |
| 163 | struct ucred *cred, \ |
| 164 | int *eofflagp))) mfs_badop) |
| 165 | #define mfs_readlink ((int (*) __P(( \ |
| 166 | struct vnode *vp, \ |
| 167 | struct uio *uio, \ |
| 168 | struct ucred *cred))) mfs_badop) |
| 169 | #define mfs_abortop ((int (*) __P(( \ |
| 170 | struct nameidata *ndp))) mfs_badop) |
| 171 | int mfs_inactive __P(( |
| 172 | struct vnode *vp, |
| 173 | struct proc *p)); |
| 174 | #define mfs_reclaim ((int (*) __P(( \ |
| 175 | struct vnode *vp))) nullop) |
| 176 | #define mfs_lock ((int (*) __P(( \ |
| 177 | struct vnode *vp))) nullop) |
| 178 | #define mfs_unlock ((int (*) __P(( \ |
| 179 | struct vnode *vp))) nullop) |
| 180 | int mfs_bmap __P(( |
| 181 | struct vnode *vp, |
| 182 | daddr_t bn, |
| 183 | struct vnode **vpp, |
| 184 | daddr_t *bnp)); |
| 185 | int mfs_strategy __P(( |
| 186 | struct buf *bp)); |
| 187 | int mfs_print __P(( |
| 188 | struct vnode *vp)); |
| 189 | #define mfs_islocked ((int (*) __P(( \ |
| 190 | struct vnode *vp))) nullop) |
| 191 | #define mfs_advlock ((int (*) __P(( \ |
| 192 | struct vnode *vp, \ |
| 193 | caddr_t id, \ |
| 194 | int op, \ |
| 195 | struct flock *fl, \ |
| 196 | int flags))) mfs_badop) |