/* $NetBSD: vndvar.h,v 1.7 2002/06/21 19:09:31 atatat Exp $ */ /*- * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$ * * @(#)vnioctl.h 8.1 (Berkeley) 6/10/93 */ #include /* * Vnode disk pseudo-geometry information. */ struct vndgeom { u_int32_t vng_secsize; /* # bytes per sector */ u_int32_t vng_nsectors; /* # data sectors per track */ u_int32_t vng_ntracks; /* # tracks per cylinder */ u_int32_t vng_ncylinders; /* # cylinders per unit */ }; /* * Ioctl definitions for file (vnode) disk pseudo-device. */ struct vnd_ioctl { char *vnd_file; /* pathname of file to mount */ int vnd_flags; /* flags; see below */ struct vndgeom vnd_geom; /* geometry to emulate */ int vnd_size; /* (returned) size of disk */ }; /* vnd_flags */ #define VNDIOF_HASGEOM 0x01 /* use specified geometry */ #ifdef _KERNEL struct vnode; struct ucred; /* * A vnode disk's state information. */ struct vnd_softc { int sc_unit; /* logical unit number */ int sc_flags; /* flags */ size_t sc_size; /* size of vnd */ struct vnode *sc_vp; /* vnode */ struct ucred *sc_cred; /* credentials */ int sc_maxactive; /* max # of active requests */ struct buf_queue sc_tab; /* transfer queue */ int sc_active; /* number of active transfers */ char sc_xname[8]; /* XXX external name */ struct disk sc_dkdev; /* generic disk device info */ struct vndgeom sc_geom; /* virtual geometry */ struct pool sc_vxpool; /* vndxfer pool */ struct pool sc_vbpool; /* vndbuf pool */ }; #endif /* sc_flags */ #define VNF_INITED 0x01 /* unit has been initialized */ #define VNF_WLABEL 0x02 /* label area is writable */ #define VNF_LABELLING 0x04 /* unit is currently being labelled */ #define VNF_WANTED 0x08 /* someone is waiting to obtain a lock */ #define VNF_LOCKED 0x10 /* unit is locked */ #define VNF_BUSY 0x20 /* unit is busy */ /* * A simple structure for describing which vnd units are in use. */ struct vnd_user { int vnu_unit; /* which vnd unit */ dev_t vnu_dev; /* file is on this device... */ ino_t vnu_ino; /* ...at this inode */ }; /* * Before you can use a unit, it must be configured with VNDIOCSET. * The configuration persists across opens and closes of the device; * an VNDIOCCLR must be used to reset a configuration. An attempt to * VNDIOCSET an already active unit will return EBUSY. */ #define VNDIOCSET _IOWR('F', 0, struct vnd_ioctl) /* enable disk */ #define VNDIOCCLR _IOW('F', 1, struct vnd_ioctl) /* disable disk */ #define VNDIOCGET _IOWR('F', 2, struct vnd_user) /* get list */