freebsd_misc.c revision 1.12.2.6
1 /* $NetBSD: freebsd_misc.c,v 1.12.2.6 2002/08/01 02:44:11 nathanw Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Frank van der Linden 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by Frank van der Linden 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * FreeBSD compatibility module. Try to deal with various FreeBSD system calls. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: freebsd_misc.c,v 1.12.2.6 2002/08/01 02:44:11 nathanw Exp $"); 40 41 #if defined(_KERNEL_OPT) 42 #include "opt_ntp.h" 43 #include "opt_ktrace.h" 44 #endif 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/proc.h> 49 #include <sys/mount.h> 50 #include <sys/signal.h> 51 #include <sys/signalvar.h> 52 #include <sys/malloc.h> 53 #ifdef KTRACE 54 #include <sys/ktrace.h> 55 #endif 56 57 #include <sys/sa.h> 58 #include <sys/syscallargs.h> 59 60 #include <compat/freebsd/freebsd_syscallargs.h> 61 #include <compat/common/compat_util.h> 62 #include <compat/freebsd/freebsd_rtprio.h> 63 #include <compat/freebsd/freebsd_timex.h> 64 #include <compat/freebsd/freebsd_signal.h> 65 66 int 67 freebsd_sys_msync(l, v, retval) 68 struct lwp *l; 69 void *v; 70 register_t *retval; 71 { 72 struct freebsd_sys_msync_args /* { 73 syscallarg(caddr_t) addr; 74 syscallarg(size_t) len; 75 syscallarg(int) flags; 76 } */ *uap = v; 77 struct sys___msync13_args bma; 78 79 /* 80 * FreeBSD-2.0-RELEASE's msync(2) is compatible with NetBSD's. 81 * FreeBSD-2.0.5-RELEASE's msync(2) has addtional argument `flags', 82 * but syscall number is not changed. :-< 83 */ 84 SCARG(&bma, addr) = SCARG(uap, addr); 85 SCARG(&bma, len) = SCARG(uap, len); 86 SCARG(&bma, flags) = SCARG(uap, flags); 87 return sys___msync13(l, &bma, retval); 88 } 89 90 /* just a place holder */ 91 92 int 93 freebsd_sys_rtprio(l, v, retval) 94 struct lwp *l; 95 void *v; 96 register_t *retval; 97 { 98 #ifdef notyet 99 struct freebsd_sys_rtprio_args /* { 100 syscallarg(int) function; 101 syscallarg(pid_t) pid; 102 syscallarg(struct freebsd_rtprio *) rtp; 103 } */ *uap = v; 104 #endif 105 106 return ENOSYS; /* XXX */ 107 } 108 109 #ifdef NTP 110 int 111 freebsd_ntp_adjtime(l, v, retval) 112 struct lwp *l; 113 void *v; 114 register_t *retval; 115 { 116 #ifdef notyet 117 struct freebsd_ntp_adjtime_args /* { 118 syscallarg(struct freebsd_timex *) tp; 119 } */ *uap = v; 120 #endif 121 122 return ENOSYS; /* XXX */ 123 } 124 #endif 125 126 int 127 freebsd_sys_sigaction4(l, v, retval) 128 struct lwp *l; 129 void *v; 130 register_t *retval; 131 { 132 struct freebsd_sys_sigaction4_args /* { 133 syscallarg(int) signum; 134 syscallarg(const struct freebsd_sigaction4 *) nsa; 135 syscallarg(struct freebsd_sigaction4 *) osa; 136 } */ *uap = v; 137 struct proc *p = l->l_proc; 138 struct freebsd_sigaction4 nesa, oesa; 139 struct sigaction nbsa, obsa; 140 int error; 141 142 if (SCARG(uap, nsa)) { 143 error = copyin(SCARG(uap, nsa), &nesa, sizeof(nesa)); 144 if (error) 145 return (error); 146 nbsa.sa_handler = nesa.sa_handler; 147 nbsa.sa_mask = nesa.sa_mask; 148 nbsa.sa_flags = nesa.sa_flags; 149 } 150 error = sigaction1(p, SCARG(uap, signum), 151 SCARG(uap, nsa) ? &nbsa : 0, SCARG(uap, osa) ? &obsa : 0, 152 NULL, 0); 153 if (error) 154 return (error); 155 if (SCARG(uap, osa)) { 156 oesa.sa_handler = obsa.sa_handler; 157 oesa.sa_mask = obsa.sa_mask; 158 oesa.sa_flags = obsa.sa_flags; 159 error = copyout(&oesa, SCARG(uap, osa), sizeof(oesa)); 160 if (error) 161 return (error); 162 } 163 return (0); 164 } 165 166 int 167 freebsd_sys_utrace(l, v, retval) 168 struct lwp *l; 169 void *v; 170 register_t *retval; 171 { 172 #ifdef KTRACE 173 struct freebsd_sys_utrace_args /* { 174 syscallarg(void *) addr; 175 syscallarg(size_t) len; 176 } */ *uap = v; 177 struct proc *p = l->l_proc; 178 179 if (KTRPOINT(p, KTR_USER)) 180 ktruser(p, "FreeBSD utrace", SCARG(uap, addr), SCARG(uap, len), 181 0); 182 183 return (0); 184 #else 185 return (ENOSYS); 186 #endif 187 } 188
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