xref: /netbsd-src/sys/compat/common/compat_sysv_50_mod.c (revision 8a031a1d1e0aac23d43015c71ae6350b917c8347)

/*	$NetBSD: compat_sysv_50_mod.c,v 1.5 2019/12/12 02:15:42 pgoyette Exp $	*/

/*-
 * Copyright (c) 2018 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software developed for The NetBSD Foundation
 * by Paul Goyette
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__KERNEL_RCSID(0, "$NetBSD: compat_sysv_50_mod.c,v 1.5 2019/12/12 02:15:42 pgoyette Exp $");

#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
#include "opt_sysv.h"
#endif

#include <sys/systm.h>
#include <sys/module.h>
#include <sys/syscall.h>
#include <sys/syscallargs.h>
#include <sys/syscallvar.h>
#include <sys/sysctl.h>
#include <sys/compat_stub.h>

#include <compat/common/compat_sysv_mod.h>

MODULE(MODULE_CLASS_EXEC, compat_sysv_50, "sysv_ipc");

/* Build the syscall package based on options specified */

static const struct syscall_package compat_sysv_50_syscalls[] = {
#ifdef SYSVSHM
	{ SYS_compat_50___shmctl13, 0, (sy_call_t *)compat_50_sys___shmctl13 },
#endif
#ifdef	SYSVSEM
	{ SYS_compat_50_____semctl13, 0, (sy_call_t *)compat_50_sys_____semctl13 },
#endif
#ifdef	SYSVMSG
	{ SYS_compat_50___msgctl13, 0, (sy_call_t *)compat_50_sys___msgctl13 },
#endif
	{ 0, 0, NULL }
};

static int
compat_sysv_50_modcmd(modcmd_t cmd, void *arg)
{
	int error = 0;

	switch (cmd) {
	case MODULE_CMD_INIT:
		error = syscall_establish(NULL, compat_sysv_50_syscalls);
		if (error != 0) {
			break;
		}
		MODULE_HOOK_SET(sysvipc_sysctl_50_hook, sysctl_kern_sysvipc50);
		break;

	case MODULE_CMD_FINI:
		error = syscall_disestablish(NULL, compat_sysv_50_syscalls);
		if (error != 0) {
			break;
		}
		MODULE_HOOK_UNSET(sysvipc_sysctl_50_hook);
		break;

	default:
		error = ENOTTY;
		break;
	}
	return error;
}