geom_ext.h

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    1 /*-
    2  * Copyright (c) 2003 Poul-Henning Kamp
    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. The names of the authors may not be used to endorse or promote
   14  *    products derived from this software without specific prior written
   15  *    permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * This file defines the interface between libgeom and the geom control device
   30  * in the kernel, the interfaces defined herein are to be considered private
   31  * and may only be used by libgeom.  Applications wishing to interact with
   32  * the geom subsystem must use libgeoms published APIs.
   33  *
   34  * $FreeBSD: releng/5.1/sys/geom/geom_ext.h 112709 2003-03-27 14:35:00Z phk $
   35  */
   36 
   37 #ifndef _GEOM_GEOM_EXT_H_
   38 #define _GEOM_GEOM_EXT_H_
   39 
   40 #include <sys/ioccom.h>
   41 #include <geom/geom_ctl.h>
   42 
   43 struct gctl_req_arg {
   44         u_int                           nlen;
   45         char                            *name;
   46         off_t                           offset;
   47         int                             flag;
   48         int                             len;
   49         void                            *value;
   50 };
   51 
   52 #define GCTL_PARAM_RD           1       /* Must match VM_PROT_READ */
   53 #define GCTL_PARAM_WR           2       /* Must match VM_PROT_WRITE */
   54 #define GCTL_PARAM_RW           (GCTL_PARAM_RD | GCTL_PARAM_WR)
   55 #define GCTL_PARAM_ASCII        4
   56 
   57 struct gctl_req {
   58         u_int                           version;
   59         u_int                           serial;
   60         enum gctl_request               request;
   61         u_int                           narg;
   62         struct gctl_req_arg             *arg;
   63         u_int                           lerror;
   64         char                            *error;
   65         struct gctl_req_table           *reqt;
   66 };
   67 
   68 #define GEOM_CTL        _IOW('G', GCTL_VERSION, struct gctl_req)
   69 
   70 #define PATH_GEOM_CTL   "geom.ctl"
   71 
   72 #endif /* _GEOM_GEOM_EXT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/geom/geom_ext.h

FreeBSD/Linux Kernel Cross Reference
sys/geom/geom_ext.h