1 /* $NetBSD: kern_time_30.c,v 1.7 2019/01/27 02:08:39 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: kern_time_30.c,v 1.7 2019/01/27 02:08:39 pgoyette Exp $"); 40 41 #ifdef _KERNEL_OPT 42 #include "opt_compat_netbsd.h" 43 #include "opt_ntp.h" 44 #endif 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/time.h> 49 #include <sys/timex.h> 50 #include <sys/syscall.h> 51 #include <sys/syscallvar.h> 52 #include <sys/syscallargs.h> 53 #include <sys/compat_stub.h> 54 55 #include <compat/common/compat_mod.h> 56 #include <compat/common/compat_util.h> 57 #include <compat/sys/time.h> 58 #include <compat/sys/timex.h> 59 60 static const struct syscall_package kern_time_30_syscalls[] = { 61 { SYS_compat_30_ntp_gettime, 0, 62 (sy_call_t *)compat_30_sys_ntp_gettime }, 63 { 0, 0, NULL } 64 }; 65 66 int 67 compat_30_sys_ntp_gettime(struct lwp *l, 68 const struct compat_30_sys_ntp_gettime_args *uap, register_t *retval) 69 { 70 /* { 71 syscallarg(struct ntptimeval30 *) ontvp; 72 } */ 73 struct ntptimeval ntv; 74 struct ntptimeval30 ntv30; 75 struct timeval tv; 76 int error; 77 78 if (vec_ntp_gettime == NULL) 79 return ENOSYS; 80 81 if (SCARG(uap, ntvp)) { 82 (*vec_ntp_gettime)(&ntv); 83 memset(&ntv30, 0, sizeof(ntv30)); 84 TIMESPEC_TO_TIMEVAL(&tv, &ntv.time); 85 timeval_to_timeval50(&tv, &ntv30.time); 86 ntv30.maxerror = ntv.maxerror; 87 ntv30.esterror = ntv.esterror; 88 89 error = copyout(&ntv30, SCARG(uap, ntvp), sizeof(ntv30)); 90 if (error) 91 return error; 92 } 93 *retval = (*vec_ntp_timestatus)(); 94 return 0; 95 } 96 97 int 98 kern_time_30_init(void) 99 { 100 101 return syscall_establish(NULL, kern_time_30_syscalls); 102 } 103 104 int 105 kern_time_30_fini(void) 106 { 107 108 return syscall_disestablish(NULL, kern_time_30_syscalls); 109 } 110