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      1 /*	$NetBSD: compat_sysv_14_mod.c,v 1.2 2019/01/27 02:08:39 pgoyette Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2018 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software developed for The NetBSD Foundation
      8  * by Paul Goyette
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: compat_sysv_14_mod.c,v 1.2 2019/01/27 02:08:39 pgoyette Exp $");
     34 
     35 #ifdef _KERNEL_OPT
     36 #include "opt_compat_netbsd.h"
     37 #include "opt_sysv.h"
     38 #endif
     39 
     40 #include <sys/systm.h>
     41 #include <sys/module.h>
     42 #include <sys/syscall.h>
     43 #include <sys/syscallargs.h>
     44 #include <sys/syscallvar.h>
     45 #include <sys/sysctl.h>
     46 
     47 MODULE(MODULE_CLASS_EXEC, compat_sysv_14, "compat_sysv_50,sysv_ipc");
     48 
     49 /* Build the syscall package based on options specified */
     50 
     51 static const struct syscall_package compat_sysv_14_syscalls[] = {
     52 #ifdef SYSVSHM
     53 	{ SYS_compat_14_shmctl, 0, (sy_call_t *)compat_14_sys_shmctl },
     54 #endif
     55 #ifdef	SYSVSEM
     56 	{ SYS_compat_14___semctl, 0, (sy_call_t *)compat_14_sys___semctl },
     57 #endif
     58 #ifdef	SYSVMSG
     59 	{ SYS_compat_14_msgctl, 0, (sy_call_t *)compat_14_sys_msgctl },
     60 #endif
     61 	{ 0, 0, NULL }
     62 };
     63 
     64 static int
     65 compat_sysv_14_modcmd(modcmd_t cmd, void *arg)
     66 {
     67 
     68 	int error = 0;
     69 
     70 	switch (cmd) {
     71 	case MODULE_CMD_INIT:
     72 		error = syscall_establish(NULL, compat_sysv_14_syscalls);
     73 		if (error != 0) {
     74 			break;
     75 		}
     76 		break;
     77 
     78 	case MODULE_CMD_FINI:
     79 		error = syscall_disestablish(NULL, compat_sysv_14_syscalls);
     80 		if (error != 0) {
     81 			break;
     82 		}
     83 		break;
     84 
     85 	default:
     86 		error = ENOTTY;
     87 		break;
     88 	}
     89 	return error;
     90 }
     91