1*86d7f5d3SJohn Marino /*-
2*86d7f5d3SJohn Marino * Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
3*86d7f5d3SJohn Marino * All rights reserved.
4*86d7f5d3SJohn Marino *
5*86d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
6*86d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
7*86d7f5d3SJohn Marino * are met:
8*86d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright
9*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
10*86d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
11*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the
12*86d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution.
13*86d7f5d3SJohn Marino *
14*86d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*86d7f5d3SJohn Marino * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*86d7f5d3SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*86d7f5d3SJohn Marino * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*86d7f5d3SJohn Marino * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*86d7f5d3SJohn Marino * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*86d7f5d3SJohn Marino * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*86d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*86d7f5d3SJohn Marino * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*86d7f5d3SJohn Marino * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*86d7f5d3SJohn Marino * SUCH DAMAGE.
25*86d7f5d3SJohn Marino *
26*86d7f5d3SJohn Marino */
27*86d7f5d3SJohn Marino
28*86d7f5d3SJohn Marino #include <sys/param.h>
29*86d7f5d3SJohn Marino #include <sys/systm.h>
30*86d7f5d3SJohn Marino #include <sys/kernel.h>
31*86d7f5d3SJohn Marino #include <sys/module.h>
32*86d7f5d3SJohn Marino #include <sys/conf.h>
33*86d7f5d3SJohn Marino #include <sys/uio.h>
34*86d7f5d3SJohn Marino #include <sys/malloc.h>
35*86d7f5d3SJohn Marino #include <sys/sysctl.h>
36*86d7f5d3SJohn Marino
37*86d7f5d3SJohn Marino
38*86d7f5d3SJohn Marino static int panic_type = 0;
39*86d7f5d3SJohn Marino
40*86d7f5d3SJohn Marino static int
sysctl_panic_type(SYSCTL_HANDLER_ARGS)41*86d7f5d3SJohn Marino sysctl_panic_type(SYSCTL_HANDLER_ARGS)
42*86d7f5d3SJohn Marino {
43*86d7f5d3SJohn Marino int error, value;
44*86d7f5d3SJohn Marino volatile int i;
45*86d7f5d3SJohn Marino
46*86d7f5d3SJohn Marino /* Write out the old value. */
47*86d7f5d3SJohn Marino error = SYSCTL_OUT(req, &panic_type, sizeof(int));
48*86d7f5d3SJohn Marino if (error || req->newptr == NULL)
49*86d7f5d3SJohn Marino return (error);
50*86d7f5d3SJohn Marino
51*86d7f5d3SJohn Marino /* Read in and verify the new value. */
52*86d7f5d3SJohn Marino error = SYSCTL_IN(req, &value, sizeof(int));
53*86d7f5d3SJohn Marino if (error)
54*86d7f5d3SJohn Marino return (error);
55*86d7f5d3SJohn Marino if (value < 0)
56*86d7f5d3SJohn Marino return (EINVAL);
57*86d7f5d3SJohn Marino panic_type = value;
58*86d7f5d3SJohn Marino
59*86d7f5d3SJohn Marino if (panic_type == 1)
60*86d7f5d3SJohn Marino panic("Test panic type 1");
61*86d7f5d3SJohn Marino
62*86d7f5d3SJohn Marino if (panic_type == 2)
63*86d7f5d3SJohn Marino i = *(int *)0; /* Fatal trap */
64*86d7f5d3SJohn Marino
65*86d7f5d3SJohn Marino return (0);
66*86d7f5d3SJohn Marino }
67*86d7f5d3SJohn Marino
68*86d7f5d3SJohn Marino
69*86d7f5d3SJohn Marino SYSCTL_PROC(_debug, OID_AUTO, panic_type, CTLTYPE_INT|CTLFLAG_RW,
70*86d7f5d3SJohn Marino &panic_type, 0, sysctl_panic_type, "I",
71*86d7f5d3SJohn Marino "Test panic type");
72*86d7f5d3SJohn Marino
73*86d7f5d3SJohn Marino
74*86d7f5d3SJohn Marino static int
ptest_modevent(module_t mod,int what,void * arg)75*86d7f5d3SJohn Marino ptest_modevent(module_t mod, int what, void *arg)
76*86d7f5d3SJohn Marino {
77*86d7f5d3SJohn Marino switch (what) {
78*86d7f5d3SJohn Marino case MOD_LOAD:
79*86d7f5d3SJohn Marino return(0);
80*86d7f5d3SJohn Marino case MOD_UNLOAD:
81*86d7f5d3SJohn Marino return (0);
82*86d7f5d3SJohn Marino default:
83*86d7f5d3SJohn Marino break;
84*86d7f5d3SJohn Marino }
85*86d7f5d3SJohn Marino
86*86d7f5d3SJohn Marino return (0);
87*86d7f5d3SJohn Marino }
88*86d7f5d3SJohn Marino
89*86d7f5d3SJohn Marino moduledata_t ptest_mdata = {
90*86d7f5d3SJohn Marino "ptest",
91*86d7f5d3SJohn Marino ptest_modevent,
92*86d7f5d3SJohn Marino NULL
93*86d7f5d3SJohn Marino };
94*86d7f5d3SJohn Marino
95*86d7f5d3SJohn Marino DECLARE_MODULE(ptest, ptest_mdata, SI_SUB_DRIVERS, SI_ORDER_ANY);
96*86d7f5d3SJohn Marino MODULE_VERSION(ptest, 1);
97