97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
/*-
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* Copyright (c) 2010 Lawrence Stewart <lstewart@freebsd.org>
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* Copyright (c) 2010 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Lawrence Stewart while studying at the Centre
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* for Advanced Internet Architectures, Swinburne University of Technology, made
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* possible in part by grants from the FreeBSD Foundation and Cisco University
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* Research Program Fund at Community Foundation Silicon Valley.
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*
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* Portions of this software were developed at the Centre for Advanced
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* Internet Architectures, Swinburne University of Technology, Melbourne,
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* Australia by Lawrence Stewart under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_MODULE_KHELP_H_
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#define _SYS_MODULE_KHELP_H_
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/* XXXLAS: Needed for uma related typedefs. */
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#include <vm/uma.h>
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/* Helper flags. */
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#define HELPER_NEEDS_OSD 0x0001
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struct helper {
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int (*mod_init) (void);
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int (*mod_destroy) (void);
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#define HELPER_NAME_MAXLEN 16
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char h_name[HELPER_NAME_MAXLEN];
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uma_zone_t h_zone;
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struct hookinfo *h_hooks;
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uint32_t h_nhooks;
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uint32_t h_classes;
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int32_t h_id;
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volatile uint32_t h_refcount;
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uint16_t h_flags;
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TAILQ_ENTRY(helper) h_next;
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};
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struct khelp_modevent_data {
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char name[HELPER_NAME_MAXLEN];
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struct helper *helper;
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struct hookinfo *hooks;
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int nhooks;
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int uma_zsize;
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uma_ctor umactor;
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uma_dtor umadtor;
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};
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#define KHELP_DECLARE_MOD_UMA(hname, hdata, hhooks, version, size, ctor, dtor) \
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static struct khelp_modevent_data kmd_##hname = { \
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.name = #hname, \
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.helper = hdata, \
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.hooks = hhooks, \
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.nhooks = sizeof(hhooks) / sizeof(hhooks[0]), \
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.uma_zsize = size, \
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.umactor = ctor, \
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.umadtor = dtor \
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}; \
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static moduledata_t h_##hname = { \
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.name = #hname, \
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.evhand = khelp_modevent, \
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.priv = &kmd_##hname \
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}; \
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DECLARE_MODULE(hname, h_##hname, SI_SUB_KLD, SI_ORDER_ANY); \
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MODULE_VERSION(hname, version)
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#define KHELP_DECLARE_MOD(hname, hdata, hhooks, version) \
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KHELP_DECLARE_MOD_UMA(hname, hdata, hhooks, version, 0, NULL, NULL)
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int khelp_modevent(module_t mod, int type, void *data);
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#endif /* _SYS_MODULE_KHELP_H_ */
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