1 /* $NetBSD: freebsd_ioctl.c,v 1.15 2007/12/20 23:02:47 dsl 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 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: freebsd_ioctl.c,v 1.15 2007/12/20 23:02:47 dsl Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/proc.h> 40 #include <sys/mount.h> 41 #include <sys/sockio.h> 42 43 #include <sys/syscallargs.h> 44 45 #include <net/if.h> 46 47 #include <compat/sys/sockio.h> 48 49 #include <compat/freebsd/freebsd_syscallargs.h> 50 #include <compat/common/compat_util.h> 51 #include <compat/freebsd/freebsd_ioctl.h> 52 53 #include <compat/ossaudio/ossaudio.h> 54 #include <compat/ossaudio/ossaudiovar.h> 55 56 /* The FreeBSD and OSS(Linux) encodings of ioctl R/W differ. */ 57 static void freebsd_to_oss(const struct freebsd_sys_ioctl_args *, 58 struct oss_sys_ioctl_args *); 59 60 static void 61 freebsd_to_oss(const struct freebsd_sys_ioctl_args *uap, struct oss_sys_ioctl_args *rap) 62 { 63 u_long ocmd, ncmd; 64 65 ocmd = SCARG(uap, com); 66 ncmd = ocmd &~ FREEBSD_IOC_DIRMASK; 67 switch(ocmd & FREEBSD_IOC_DIRMASK) { 68 case FREEBSD_IOC_VOID: ncmd |= OSS_IOC_VOID; break; 69 case FREEBSD_IOC_OUT: ncmd |= OSS_IOC_OUT; break; 70 case FREEBSD_IOC_IN: ncmd |= OSS_IOC_IN; break; 71 case FREEBSD_IOC_INOUT: ncmd |= OSS_IOC_INOUT; break; 72 } 73 SCARG(rap, fd) = SCARG(uap, fd); 74 SCARG(rap, com) = ncmd; 75 SCARG(rap, data) = SCARG(uap, data); 76 } 77 78 79 static void freebsd_to_netbsd_ifioctl(const struct freebsd_sys_ioctl_args *uap, 80 struct sys_ioctl_args *nap); 81 82 static void 83 freebsd_to_netbsd_ifioctl(const struct freebsd_sys_ioctl_args *uap, struct sys_ioctl_args *nap) 84 { 85 u_long ocmd, ncmd; 86 ocmd = SCARG(uap, com); 87 switch (ocmd) { 88 case FREEBSD_SIOCALIFADDR: 89 ncmd =SIOCALIFADDR; 90 break; 91 case FREEBSD_SIOCGLIFADDR: 92 ncmd =SIOCGLIFADDR; 93 break; 94 case FREEBSD_SIOCDLIFADDR: 95 ncmd =SIOCDLIFADDR; 96 break; 97 case FREEBSD_SIOCGIFMTU: 98 ncmd = SIOCGIFMTU; 99 break; 100 case FREEBSD_SIOCSIFMTU: 101 ncmd = SIOCSIFMTU; 102 break; 103 default: 104 ncmd = ocmd; 105 break; 106 } 107 SCARG(nap, fd) = SCARG(uap, fd); 108 SCARG(nap, com) = ncmd; 109 SCARG(nap, data) = SCARG(uap, data); 110 } 111 112 int 113 freebsd_sys_ioctl(struct lwp *l, const struct freebsd_sys_ioctl_args *uap, register_t *retval) 114 { 115 /* { 116 syscallarg(int) fd; 117 syscallarg(u_long) com; 118 syscallarg(void *) data; 119 } */ 120 struct oss_sys_ioctl_args ap; 121 struct sys_ioctl_args nap; 122 123 /* 124 * XXX - <sys/cdio.h>'s incompatibility 125 * _IO('c', 25..27, *): incompatible 126 * _IO('c', 28... , *): not exist 127 */ 128 /* XXX - <sys/mtio.h> */ 129 /* XXX - <sys/scsiio.h> */ 130 /* XXX - should convert machine dependent ioctl()s */ 131 132 switch (FREEBSD_IOCGROUP(SCARG(uap, com))) { 133 case 'M': 134 freebsd_to_oss(uap, &ap); 135 return oss_ioctl_mixer(l, &ap, retval); 136 case 'Q': 137 freebsd_to_oss(uap, &ap); 138 return oss_ioctl_sequencer(l, &ap, retval); 139 case 'P': 140 freebsd_to_oss(uap, &ap); 141 return oss_ioctl_audio(l, &ap, retval); 142 case 'i': 143 freebsd_to_netbsd_ifioctl(uap, &nap); 144 return sys_ioctl(l, &nap, retval); 145 default: 146 return sys_ioctl(l, (const void *)uap, retval); 147 } 148 } 149