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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/compat/linux/linux_common.c
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/*-

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 * Copyright (c) 2014 Vassilis Laganakos

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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 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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#include <sys/param.h>

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#include <sys/exec.h>

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#include <sys/imgact.h>

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#include <sys/kernel.h>

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#include <sys/malloc.h>

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#include <sys/sx.h>

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#include <compat/linux/linux.h>

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#include <compat/linux/linux_mib.h>

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#include <compat/linux/linux_util.h>

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SET_DECLARE(linux_device_handler_set, struct linux_device_handler);

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TAILQ_HEAD(, linux_ioctl_handler_element) linux_ioctl_handlers =

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    TAILQ_HEAD_INITIALIZER(linux_ioctl_handlers);

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struct sx linux_ioctl_sx;

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SX_SYSINIT(linux_ioctl, &linux_ioctl_sx, "Linux ioctl handlers");

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static int

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linux_common_modevent(module_t mod, int type, void *data)

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{

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	struct linux_device_handler **ldhp;

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	switch(type) {

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	case MOD_LOAD:

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#ifdef INVARIANTS

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		linux_check_errtbl();

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#endif

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		linux_dev_shm_create();

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		linux_osd_jail_register();

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		SET_FOREACH(ldhp, linux_device_handler_set)

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			linux_device_register_handler(*ldhp);

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		linux_netlink_register();

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		break;

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	case MOD_UNLOAD:

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		linux_dev_shm_destroy();

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		linux_osd_jail_deregister();

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		SET_FOREACH(ldhp, linux_device_handler_set)

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			linux_device_unregister_handler(*ldhp);

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		linux_netlink_deregister();

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		break;

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	default:

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		return (EOPNOTSUPP);

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	}

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	return (0);

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}

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static moduledata_t linux_common_mod = {

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	"linux_common",

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	linux_common_modevent,

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	0

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};

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DECLARE_MODULE(linux_common, linux_common_mod, SI_SUB_EXEC, SI_ORDER_ANY);

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MODULE_VERSION(linux_common, 1);

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MODULE_DEPEND(linux_common, netlink, 1, 1, 1);

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