1 /* $NetBSD: compat_sysv_50_mod.c,v 1.5 2019/12/12 02:15:42 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_50_mod.c,v 1.5 2019/12/12 02:15:42 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 #include <sys/compat_stub.h> 47 48 #include <compat/common/compat_sysv_mod.h> 49 50 MODULE(MODULE_CLASS_EXEC, compat_sysv_50, "sysv_ipc"); 51 52 /* Build the syscall package based on options specified */ 53 54 static const struct syscall_package compat_sysv_50_syscalls[] = { 55 #ifdef SYSVSHM 56 { SYS_compat_50___shmctl13, 0, (sy_call_t *)compat_50_sys___shmctl13 }, 57 #endif 58 #ifdef SYSVSEM 59 { SYS_compat_50_____semctl13, 0, (sy_call_t *)compat_50_sys_____semctl13 }, 60 #endif 61 #ifdef SYSVMSG 62 { SYS_compat_50___msgctl13, 0, (sy_call_t *)compat_50_sys___msgctl13 }, 63 #endif 64 { 0, 0, NULL } 65 }; 66 67 static int 68 compat_sysv_50_modcmd(modcmd_t cmd, void *arg) 69 { 70 int error = 0; 71 72 switch (cmd) { 73 case MODULE_CMD_INIT: 74 error = syscall_establish(NULL, compat_sysv_50_syscalls); 75 if (error != 0) { 76 break; 77 } 78 MODULE_HOOK_SET(sysvipc_sysctl_50_hook, sysctl_kern_sysvipc50); 79 break; 80 81 case MODULE_CMD_FINI: 82 error = syscall_disestablish(NULL, compat_sysv_50_syscalls); 83 if (error != 0) { 84 break; 85 } 86 MODULE_HOOK_UNSET(sysvipc_sysctl_50_hook); 87 break; 88 89 default: 90 error = ENOTTY; 91 break; 92 } 93 return error; 94 } 95