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83d771de78
hinge on the "verb" parameter which the class gets to interpret as it sees fit. Move the entire request into the kernel and move changed parameters back when done.
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*-
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* Copyright (c) 2003 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _GEOM_GEOM_CTL_H_
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#define _GEOM_GEOM_CTL_H_
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#include <sys/ioccom.h>
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/*
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* Version number. Used to check consistency between kernel and libgeom.
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*/
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#define GCTL_VERSION 2
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struct gctl_req_arg {
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u_int nlen;
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char *name;
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off_t offset;
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int flag;
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int len;
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void *value;
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/* kernel only fields */
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void *kvalue;
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};
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#define GCTL_PARAM_RD 1 /* Must match VM_PROT_READ */
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#define GCTL_PARAM_WR 2 /* Must match VM_PROT_WRITE */
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#define GCTL_PARAM_RW (GCTL_PARAM_RD | GCTL_PARAM_WR)
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#define GCTL_PARAM_ASCII 4
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/* These are used in the kernel only */
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#define GCTL_PARAM_NAMEKERNEL 8
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#define GCTL_PARAM_VALUEKERNEL 16
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#define GCTL_PARAM_CHANGED 32
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struct gctl_req {
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u_int version;
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u_int serial;
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u_int narg;
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struct gctl_req_arg *arg;
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u_int lerror;
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char *error;
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struct gctl_req_table *reqt;
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/* kernel only fields */
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int nerror;
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struct sbuf *serror;
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};
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#define GEOM_CTL _IOW('G', GCTL_VERSION, struct gctl_req)
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#define PATH_GEOM_CTL "geom.ctl"
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#endif /* _GEOM_GEOM_CTL_H_ */
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