1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 24*7c478bd9Sstevel@tonic-gate 25*7c478bd9Sstevel@tonic-gate 26*7c478bd9Sstevel@tonic-gate /* 27*7c478bd9Sstevel@tonic-gate * Copyright 1999,2001-2003 Sun Microsystems, Inc. All rights reserved. 28*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 29*7c478bd9Sstevel@tonic-gate */ 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from SVr4.0 1.78 */ 32*7c478bd9Sstevel@tonic-gate 33*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 35*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 36*7c478bd9Sstevel@tonic-gate #include <sys/systm.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/tuneable.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/errno.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/proc.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/time.h> 41*7c478bd9Sstevel@tonic-gate #include <sys/debug.h> 42*7c478bd9Sstevel@tonic-gate #include <sys/model.h> 43*7c478bd9Sstevel@tonic-gate #include <sys/policy.h> 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate int 46*7c478bd9Sstevel@tonic-gate adjtime(struct timeval *delta, struct timeval *olddelta) 47*7c478bd9Sstevel@tonic-gate { 48*7c478bd9Sstevel@tonic-gate struct timeval atv, oatv; 49*7c478bd9Sstevel@tonic-gate int64_t ndelta; 50*7c478bd9Sstevel@tonic-gate int64_t old_delta; 51*7c478bd9Sstevel@tonic-gate int s; 52*7c478bd9Sstevel@tonic-gate model_t datamodel = get_udatamodel(); 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate if (secpolicy_settime(CRED()) != 0) 55*7c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate if (datamodel == DATAMODEL_NATIVE) { 58*7c478bd9Sstevel@tonic-gate if (copyin(delta, &atv, sizeof (atv))) 59*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 60*7c478bd9Sstevel@tonic-gate } else { 61*7c478bd9Sstevel@tonic-gate struct timeval32 atv32; 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate if (copyin(delta, &atv32, sizeof (atv32))) 64*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 65*7c478bd9Sstevel@tonic-gate TIMEVAL32_TO_TIMEVAL(&atv, &atv32); 66*7c478bd9Sstevel@tonic-gate } 67*7c478bd9Sstevel@tonic-gate 68*7c478bd9Sstevel@tonic-gate if (atv.tv_usec <= -MICROSEC || atv.tv_usec >= MICROSEC) 69*7c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate /* 72*7c478bd9Sstevel@tonic-gate * The SVID specifies that if delta is 0, then there is 73*7c478bd9Sstevel@tonic-gate * no effect upon time correction, just return olddelta. 74*7c478bd9Sstevel@tonic-gate */ 75*7c478bd9Sstevel@tonic-gate ndelta = (int64_t)atv.tv_sec * NANOSEC + atv.tv_usec * 1000; 76*7c478bd9Sstevel@tonic-gate mutex_enter(&tod_lock); 77*7c478bd9Sstevel@tonic-gate s = hr_clock_lock(); 78*7c478bd9Sstevel@tonic-gate old_delta = timedelta; 79*7c478bd9Sstevel@tonic-gate if (ndelta) 80*7c478bd9Sstevel@tonic-gate timedelta = ndelta; 81*7c478bd9Sstevel@tonic-gate /* 82*7c478bd9Sstevel@tonic-gate * Always set tod_needsync on all adjtime() calls, since it implies 83*7c478bd9Sstevel@tonic-gate * someone is watching over us and keeping the local clock in sync. 84*7c478bd9Sstevel@tonic-gate */ 85*7c478bd9Sstevel@tonic-gate tod_needsync = 1; 86*7c478bd9Sstevel@tonic-gate hr_clock_unlock(s); 87*7c478bd9Sstevel@tonic-gate mutex_exit(&tod_lock); 88*7c478bd9Sstevel@tonic-gate 89*7c478bd9Sstevel@tonic-gate if (olddelta) { 90*7c478bd9Sstevel@tonic-gate oatv.tv_sec = old_delta / NANOSEC; 91*7c478bd9Sstevel@tonic-gate oatv.tv_usec = (old_delta % NANOSEC) / 1000; 92*7c478bd9Sstevel@tonic-gate if (datamodel == DATAMODEL_NATIVE) { 93*7c478bd9Sstevel@tonic-gate if (copyout(&oatv, olddelta, sizeof (oatv))) 94*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 95*7c478bd9Sstevel@tonic-gate } else { 96*7c478bd9Sstevel@tonic-gate struct timeval32 oatv32; 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate if (TIMEVAL_OVERFLOW(&oatv)) 99*7c478bd9Sstevel@tonic-gate return (set_errno(EOVERFLOW)); 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate TIMEVAL_TO_TIMEVAL32(&oatv32, &oatv); 102*7c478bd9Sstevel@tonic-gate 103*7c478bd9Sstevel@tonic-gate if (copyout(&oatv32, olddelta, sizeof (oatv32))) 104*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 105*7c478bd9Sstevel@tonic-gate } 106*7c478bd9Sstevel@tonic-gate } 107*7c478bd9Sstevel@tonic-gate return (0); 108*7c478bd9Sstevel@tonic-gate } 109