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/* $NetBSD: k_helper2.c,v 1.2 2010/11/03 16:10:23 christos Exp $ */
/*
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: k_helper2.c,v 1.2 2010/11/03 16:10:23 christos Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <prop/proplib.h>
MODULE(MODULE_CLASS_MISC, k_helper2, NULL);
/* --------------------------------------------------------------------- */
/* Sysctl interface to query information about the module. */
/* --------------------------------------------------------------------- */
/* TODO: Change the integer variables below that represent booleans to
* bools, once sysctl(8) supports CTLTYPE_BOOL nodes. */
static struct sysctllog *clogp;
static int present = 1;
#define K_HELPER2 0x23456781
#define K_HELPER_PRESENT 0
SYSCTL_SETUP(sysctl_k_helper2_setup, "sysctl k_helper subtree setup")
{
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT,
CTLTYPE_NODE, "k_helper2", NULL,
NULL, 0, NULL, 0,
CTL_VENDOR, K_HELPER2, CTL_EOL);
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT,
CTLTYPE_INT, "present",
SYSCTL_DESCR("Whether the module was loaded or not"),
NULL, 0, &present, 0,
CTL_VENDOR, K_HELPER2, K_HELPER_PRESENT, CTL_EOL);
}
/* --------------------------------------------------------------------- */
/* Module management. */
/* --------------------------------------------------------------------- */
static
int
k_helper2_init(prop_dictionary_t props)
{
sysctl_k_helper2_setup(&clogp);
return 0;
}
static
int
k_helper2_fini(void *arg)
{
sysctl_teardown(&clogp);
return 0;
}
static
int
k_helper2_modcmd(modcmd_t cmd, void *arg)
{
int ret;
switch (cmd) {
case MODULE_CMD_INIT:
ret = k_helper2_init(arg);
break;
case MODULE_CMD_FINI:
ret = k_helper2_fini(arg);
break;
case MODULE_CMD_STAT:
default:
ret = ENOTTY;
}
return ret;
}
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