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/*-
* Copyright (c) 2010 Lawrence Stewart <lstewart@freebsd.org>
* Copyright (c) 2010 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Lawrence Stewart while studying at the Centre
* for Advanced Internet Architectures, Swinburne University of Technology, made
* possible in part by grants from the FreeBSD Foundation and Cisco University
* Research Program Fund at Community Foundation Silicon Valley.
*
* Portions of this software were developed at the Centre for Advanced
* Internet Architectures, Swinburne University of Technology, Melbourne,
* Australia by Lawrence Stewart under sponsorship from the FreeBSD Foundation.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD: release/9.1.0/sys/sys/module_khelp.h 220560 2011-04-12 08:13:18Z lstewart $
*/
#ifndef _SYS_MODULE_KHELP_H_
#define _SYS_MODULE_KHELP_H_
/* XXXLAS: Needed for uma related typedefs. */
#include <vm/uma.h>
/* Helper flags. */
#define HELPER_NEEDS_OSD 0x0001
struct helper {
int (*mod_init) (void);
int (*mod_destroy) (void);
#define HELPER_NAME_MAXLEN 16
char h_name[HELPER_NAME_MAXLEN];
uma_zone_t h_zone;
struct hookinfo *h_hooks;
uint32_t h_nhooks;
uint32_t h_classes;
int32_t h_id;
volatile uint32_t h_refcount;
uint16_t h_flags;
TAILQ_ENTRY(helper) h_next;
};
struct khelp_modevent_data {
char name[HELPER_NAME_MAXLEN];
struct helper *helper;
struct hookinfo *hooks;
int nhooks;
int uma_zsize;
uma_ctor umactor;
uma_dtor umadtor;
};
#define KHELP_DECLARE_MOD(hname, hdata, hhooks, version) \
static struct khelp_modevent_data kmd_##hname = { \
.name = #hname, \
.helper = hdata \
.hooks = hhooks, \
.nhooks = sizeof(hhooks) / sizeof(hhooks[0]), \
}; \
static moduledata_t h_##hname = { \
.name = #hname, \
.evhand = khelp_modevent, \
.priv = &kmd_##hname \
}; \
DECLARE_MODULE(hname, h_##hname, SI_SUB_PROTO_IFATTACHDOMAIN, \
SI_ORDER_ANY); \
MODULE_VERSION(hname, version)
#define KHELP_DECLARE_MOD_UMA(hname, hdata, hhooks, version, size, ctor, dtor) \
static struct khelp_modevent_data kmd_##hname = { \
.name = #hname, \
.helper = hdata, \
.hooks = hhooks, \
.nhooks = sizeof(hhooks) / sizeof(hhooks[0]), \
.uma_zsize = size, \
.umactor = ctor, \
.umadtor = dtor \
}; \
static moduledata_t h_##hname = { \
.name = #hname, \
.evhand = khelp_modevent, \
.priv = &kmd_##hname \
}; \
DECLARE_MODULE(hname, h_##hname, SI_SUB_PROTO_IFATTACHDOMAIN, \
SI_ORDER_ANY); \
MODULE_VERSION(hname, version)
int khelp_modevent(module_t mod, int type, void *data);
#endif /* _SYS_MODULE_KHELP_H_ */