/*-
* Copyright (c) 2014 Vassilis Laganakos
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/exec.h>
#include <sys/imgact.h>
#include <sys/imgact_elf.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/eventhandler.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <compat/linux/linux.h>
#include <compat/linux/linux_emul.h>
#include <compat/linux/linux_ioctl.h>
#include <compat/linux/linux_mib.h>
#include <compat/linux/linux_util.h>
FEATURE(linuxulator_v4l, "V4L ioctl wrapper support in the linuxulator");
FEATURE(linuxulator_v4l2, "V4L2 ioctl wrapper support in the linuxulator");
MODULE_VERSION(linux_common, 1);
SET_DECLARE(linux_device_handler_set, struct linux_device_handler);
TAILQ_HEAD(, linux_ioctl_handler_element) linux_ioctl_handlers =
TAILQ_HEAD_INITIALIZER(linux_ioctl_handlers);
struct sx linux_ioctl_sx;
SX_SYSINIT(linux_ioctl, &linux_ioctl_sx, "Linux ioctl handlers");
static eventhandler_tag linux_exec_tag;
static eventhandler_tag linux_thread_dtor_tag;
static eventhandler_tag linux_exit_tag;
static int
linux_common_modevent(module_t mod, int type, void *data)
{
struct linux_device_handler **ldhp;
switch(type) {
case MOD_LOAD:
linux_dev_shm_create();
linux_osd_jail_register();
linux_exit_tag = EVENTHANDLER_REGISTER(process_exit,
linux_proc_exit, NULL, 1000);
linux_exec_tag = EVENTHANDLER_REGISTER(process_exec,
linux_proc_exec, NULL, 1000);
linux_thread_dtor_tag = EVENTHANDLER_REGISTER(thread_dtor,
linux_thread_dtor, NULL, EVENTHANDLER_PRI_ANY);
SET_FOREACH(ldhp, linux_device_handler_set)
linux_device_register_handler(*ldhp);
LIST_INIT(&futex_list);
mtx_init(&futex_mtx, "ftllk", NULL, MTX_DEF);
break;
case MOD_UNLOAD:
linux_dev_shm_destroy();
linux_osd_jail_deregister();
SET_FOREACH(ldhp, linux_device_handler_set)
linux_device_unregister_handler(*ldhp);
mtx_destroy(&futex_mtx);
EVENTHANDLER_DEREGISTER(process_exit, linux_exit_tag);
EVENTHANDLER_DEREGISTER(process_exec, linux_exec_tag);
EVENTHANDLER_DEREGISTER(thread_dtor, linux_thread_dtor_tag);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
static moduledata_t linux_common_mod = {
"linuxcommon",
linux_common_modevent,
0
};
DECLARE_MODULE(linuxcommon, linux_common_mod, SI_SUB_EXEC, SI_ORDER_ANY);
MODULE_VERSION(linuxcommon, 1);
