FreeBSD/Linux Kernel Cross Reference
sys/geom/geom_ctl.h
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 * $FreeBSD: src/sys/geom/geom_ctl.h,v 1.5 2003/06/01 13:47:51 phk Exp $
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
42 struct 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
63 struct 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 PATH_GEOM_CTL "geom.ctl"
80
81
82 #endif /* _GEOM_GEOM_CTL_H_ */
83
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