86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* $NetBSD: bpf_stub.c,v 1.3 2010/01/19 23:11:10 pooka Exp $ */
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/*
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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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 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: bpf_stub.c,v 1.3 2010/01/19 23:11:10 pooka Exp $");
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <net/bpf.h>
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static void
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bpf_stub_attach(struct ifnet *ipf, u_int dlt, u_int hlen, struct bpf_if **drvp)
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{
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*drvp = NULL;
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}
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static void
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bpf_stub_null(void)
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{
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}
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static void
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bpf_stub_warn(void)
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{
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#ifdef DEBUG
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panic("bpf method called without attached bpf_if");
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#endif
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#ifdef DIAGNOSTIC
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printf("bpf method called without attached bpf_if\n");
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#endif
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}
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struct bpf_ops bpf_ops_stub = {
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.bpf_attach = bpf_stub_attach,
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.bpf_detach = (void *)bpf_stub_null,
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.bpf_change_type = (void *)bpf_stub_null,
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.bpf_tap = (void *)bpf_stub_warn,
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.bpf_mtap = (void *)bpf_stub_warn,
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.bpf_mtap2 = (void *)bpf_stub_warn,
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.bpf_mtap_af = (void *)bpf_stub_warn,
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.bpf_mtap_et = (void *)bpf_stub_warn,
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.bpf_mtap_sl_in = (void *)bpf_stub_warn,
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.bpf_mtap_sl_out = (void *)bpf_stub_warn,
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};
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struct bpf_ops *bpf_ops;
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void bpf_setops_stub(void);
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void
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bpf_setops_stub()
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{
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bpf_ops = &bpf_ops_stub;
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}
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__weak_alias(bpf_setops,bpf_setops_stub);
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