1 /* $NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Emmanuel Dreyfus. 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. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $"); 35 36 #if defined(_KERNEL_OPT) 37 #include "opt_compat_netbsd.h" 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/proc.h> 43 #include <sys/errno.h> 44 #include <sys/ioctl.h> 45 #include <sys/device.h> 46 #include <sys/time.h> 47 #include <sys/conf.h> 48 #include <sys/timex.h> 49 #include <sys/kauth.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/compat_stub.h> 53 54 #include <sys/clockctl.h> 55 #include <compat/sys/clockctl.h> 56 #include <compat/sys/time_types.h> 57 58 int 59 compat50_clockctlioctl(dev_t dev, u_long cmd, void *data, int flags, 60 struct lwp *l) 61 { 62 int error = 0; 63 const struct cdevsw *cd = cdevsw_lookup(dev); 64 65 if (cd == NULL || cd->d_ioctl == NULL) 66 return ENXIO; 67 68 switch (cmd) { 69 case CLOCKCTL_OSETTIMEOFDAY: { 70 struct timeval50 tv50; 71 struct timeval tv; 72 struct clockctl50_settimeofday *args = data; 73 74 error = copyin(args->tv, &tv50, sizeof(tv50)); 75 if (error) 76 return (error); 77 timeval50_to_timeval(&tv50, &tv); 78 error = settimeofday1(&tv, false, args->tzp, l, false); 79 break; 80 } 81 case CLOCKCTL_OADJTIME: { 82 struct timeval atv, oldatv; 83 struct timeval50 atv50; 84 struct clockctl50_adjtime *args = data; 85 86 if (args->delta) { 87 error = copyin(args->delta, &atv50, sizeof(atv50)); 88 if (error) 89 return (error); 90 timeval50_to_timeval(&atv50, &atv); 91 } 92 adjtime1(args->delta ? &atv : NULL, 93 args->olddelta ? &oldatv : NULL, l->l_proc); 94 if (args->olddelta) { 95 timeval_to_timeval50(&oldatv, &atv50); 96 error = copyout(&atv50, args->olddelta, sizeof(atv50)); 97 } 98 break; 99 } 100 case CLOCKCTL_OCLOCK_SETTIME: { 101 struct timespec50 tp50; 102 struct timespec tp; 103 struct clockctl50_clock_settime *args = data; 104 105 error = copyin(args->tp, &tp50, sizeof(tp50)); 106 if (error) 107 return (error); 108 timespec50_to_timespec(&tp50, &tp); 109 error = clock_settime1(l->l_proc, args->clock_id, &tp, true); 110 break; 111 } 112 case CLOCKCTL_ONTP_ADJTIME: { 113 if (vec_ntp_timestatus == NULL) { 114 error = ENOTTY; 115 break; 116 } 117 /* The ioctl number changed but the data did not change. */ 118 error = (cd->d_ioctl)(dev, CLOCKCTL_NTP_ADJTIME, 119 data, flags, l); 120 break; 121 } 122 default: 123 error = ENOTTY; 124 } 125 126 return (error); 127 } 128 129 void 130 clockctl_50_init(void) 131 { 132 133 MODULE_HOOK_SET(clockctl_ioctl_50_hook, compat50_clockctlioctl); 134 } 135 136 void 137 clockctl_50_fini(void) 138 { 139 140 MODULE_HOOK_UNSET(clockctl_ioctl_50_hook); 141 } 142