95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
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/* $NetBSD: pf_lkm.c,v 1.1 2004/06/30 09:51:43 itojun Exp $ */
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/*
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to the NetBSD Foundation
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* by Peter Postma and Joel Wilsson.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pf_lkm.c,v 1.1 2004/06/30 09:51:43 itojun Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/lkm.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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int pf_lkmentry(struct lkm_table *, int, int);
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static int pf_lkmload(struct lkm_table *, int);
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static int pf_lkmunload(struct lkm_table *, int);
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extern void pfattach(int);
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extern void pfdetach(void);
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extern void pflogattach(int);
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extern void pflogdetach(void);
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extern const struct cdevsw pf_cdevsw;
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MOD_DEV("pf", "pf", NULL, -1, &pf_cdevsw, -1);
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int
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pf_lkmentry(struct lkm_table *lkmtp, int cmd, int ver)
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{
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LKM_DISPATCH(lkmtp, cmd, ver, pf_lkmload, pf_lkmunload, lkm_nofunc);
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}
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static int
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pf_lkmload(struct lkm_table *lkmtp, int cmd)
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{
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if (lkmexists(lkmtp))
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return (EEXIST);
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pfattach(1);
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pflogattach(1);
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return (0);
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}
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static int
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pf_lkmunload(struct lkm_table *lkmtp, int cmd)
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{
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pfdetach();
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pflogdetach();
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return (0);
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}
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