90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* $NetBSD: if_module.h,v 1.1 2016/08/07 17:38:34 christos Exp $ */
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/*-
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* Copyright (c) 2016 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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#ifdef _MODULE
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# define IF_MODULE_CFDRIVER_DECL(name) CFDRIVER_DECL(name, DV_IFNET, NULL)
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# define IF_MODULE_CFDRIVER_ATTACH(name) \
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error = config_cfdriver_attach(& name ## _cd); \
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if (error) { \
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aprint_error("%s: unable to register cfdriver for" \
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"%s, error %d\n", __func__, name ## _cd.cd_name,\
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error); \
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break; \
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}
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# define IF_MODULE_CFDRIVER_DETACH(name) \
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/* Remove device from autoconf database */ \
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error = config_cfdriver_detach(&name ## _cd); \
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if (error) { \
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aprint_error("%s: failed to detach %s cfdriver, " \
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"error %d\n", __func__, name ## _cd.cd_name, \
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error); \
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break; \
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}
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#else
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# define IF_MODULE_CFDRIVER_DECL(name)
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# define IF_MODULE_CFDRIVER_ATTACH(name)
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# define IF_MODULE_CFDRIVER_DETACH(name)
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#endif
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#define IF_MODULE(class, name, dep) \
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MODULE(class, if_ ## name, dep); \
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IF_MODULE_CFDRIVER_DECL(name); \
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static int \
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if_ ## name ## _modcmd(modcmd_t cmd, void *arg) \
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{ \
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int error = 0; \
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\
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switch (cmd) { \
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case MODULE_CMD_INIT: \
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IF_MODULE_CFDRIVER_ATTACH(name) \
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/* Init the unit list/line discipline stuff */ \
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name ## init(); \
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break; \
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\
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case MODULE_CMD_FINI: \
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/* \
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* Make sure it's ok to detach - no units left, \
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* and line discipline is removed \
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*/ \
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error = name ## detach(); \
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if (error != 0) \
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break; \
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IF_MODULE_CFDRIVER_DETACH(name) \
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break; \
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\
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case MODULE_CMD_STAT: \
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error = ENOTTY; \
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break; \
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default: \
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error = ENOTTY; \
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break; \
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} \
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\
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return error; \
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}
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