FreeBSD/Linux Kernel Cross Reference
sys/geom/geom_ctl.h
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 * $FreeBSD: releng/12.0/sys/geom/geom_ctl.h 326270 2017-11-27 15:17:37Z pfg $
32 */
33
34 #ifndef _GEOM_GEOM_CTL_H_
35 #define _GEOM_GEOM_CTL_H_
36
37 #include <sys/ioccom.h>
38
39 /*
40 * Version number. Used to check consistency between kernel and libgeom.
41 */
42 #define GCTL_VERSION 2
43
44 struct gctl_req_arg {
45 u_int nlen;
46 char *name;
47 off_t offset;
48 int flag;
49 int len;
50 void *value;
51 /* kernel only fields */
52 void *kvalue;
53 };
54
55 #define GCTL_PARAM_RD 1 /* Must match VM_PROT_READ */
56 #define GCTL_PARAM_WR 2 /* Must match VM_PROT_WRITE */
57 #define GCTL_PARAM_RW (GCTL_PARAM_RD | GCTL_PARAM_WR)
58 #define GCTL_PARAM_ASCII 4
59
60 /* These are used in the kernel only */
61 #define GCTL_PARAM_NAMEKERNEL 8
62 #define GCTL_PARAM_VALUEKERNEL 16
63 #define GCTL_PARAM_CHANGED 32
64
65 struct gctl_req {
66 u_int version;
67 u_int serial;
68 u_int narg;
69 struct gctl_req_arg *arg;
70 u_int lerror;
71 char *error;
72 struct gctl_req_table *reqt;
73
74 /* kernel only fields */
75 int nerror;
76 struct sbuf *serror;
77 };
78
79 #define GEOM_CTL _IOW('G', GCTL_VERSION, struct gctl_req)
80
81 #define PATH_GEOM_CTL "geom.ctl"
82
83
84 #endif /* _GEOM_GEOM_CTL_H_ */
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