1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2003 Poul-Henning Kamp
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The names of the authors may not be used to endorse or promote
16 * products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef _GEOM_GEOM_CTL_H_
33#define _GEOM_GEOM_CTL_H_
34
35#include <sys/ioccom.h>
36
37/*
38 * Version number. Used to check consistency between kernel and libgeom.
39 */
40#define GCTL_VERSION 2
41
42struct gctl_req_arg {
43 u_int nlen;
44 char *name;
45 off_t offset;
46 int flag;
47 int len;
48 void *value;
49 /* kernel only fields */
50 void *kvalue;
51};
52
53#define GCTL_PARAM_RD 1 /* Must match VM_PROT_READ */
54#define GCTL_PARAM_WR 2 /* Must match VM_PROT_WRITE */
55#define GCTL_PARAM_RW (GCTL_PARAM_RD | GCTL_PARAM_WR)
56#define GCTL_PARAM_ASCII 4
57
58/* These are used in the kernel only */
59#define GCTL_PARAM_NAMEKERNEL 8
60#define GCTL_PARAM_VALUEKERNEL 16
61#define GCTL_PARAM_CHANGED 32
62
63struct gctl_req {
64 u_int version;
65 u_int serial;
66 u_int narg;
67 struct gctl_req_arg *arg;
68 u_int lerror;
69 char *error;
70 struct gctl_req_table *reqt;
71
72 /* kernel only fields */
73 int nerror;
74 struct sbuf *serror;
75};
76
77#define GEOM_CTL _IOW('G', GCTL_VERSION, struct gctl_req)
78
79#define GEOM_CTL_ARG_MAX 2048 /* maximum number of parameters */
80
81#define PATH_GEOM_CTL "geom.ctl"
82
83#endif /* _GEOM_GEOM_CTL_H_ */