linux_ioctl.c revision 1.19
1 /* $NetBSD: linux_ioctl.c,v 1.19 1998/10/01 03:24:28 erh Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Eric Haszlakiewicz. 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 39 /* 40 * Copyright (c) 1995 Frank van der Linden 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed for the NetBSD Project 54 * by Frank van der Linden 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 #include "sequencer.h" 71 72 #include <sys/param.h> 73 #include <sys/proc.h> 74 #include <sys/systm.h> 75 #include <sys/conf.h> 76 #include <sys/ioctl.h> 77 #include <sys/mount.h> 78 #include <sys/file.h> 79 #include <sys/vnode.h> 80 #include <sys/filedesc.h> 81 82 #include <sys/socket.h> 83 #include <net/if.h> 84 #include <sys/sockio.h> 85 86 #include <sys/syscallargs.h> 87 88 #include <compat/linux/linux_types.h> 89 #include <compat/linux/linux_signal.h> 90 #include <compat/linux/linux_syscallargs.h> 91 #include <compat/linux/linux_ioctl.h> 92 93 #include <compat/ossaudio/ossaudio.h> 94 #define LINUX_TO_OSS(v) (v) /* do nothing, same ioctl() encoding */ 95 96 /* 97 * Most ioctl command are just converted to their NetBSD values, 98 * and passed on. The ones that take structure pointers and (flag) 99 * values need some massaging. This is done the usual way by 100 * allocating stackgap memory, letting the actual ioctl call do its 101 * work there and converting back the data afterwards. 102 */ 103 int 104 linux_sys_ioctl(p, v, retval) 105 struct proc *p; 106 void *v; 107 register_t *retval; 108 { 109 struct linux_sys_ioctl_args /* { 110 syscallarg(int) fd; 111 syscallarg(u_long) com; 112 syscallarg(caddr_t) data; 113 } */ *uap = v; 114 115 switch (LINUX_IOCGROUP(SCARG(uap, com))) { 116 case 'M': 117 return oss_ioctl_mixer(p, LINUX_TO_OSS(v), retval); 118 case 'Q': 119 return oss_ioctl_sequencer(p, LINUX_TO_OSS(v), retval); 120 case 'P': 121 return oss_ioctl_audio(p, LINUX_TO_OSS(v), retval); 122 case 'S': 123 return linux_ioctl_cdrom(p, uap, retval); 124 case 'T': 125 case 't': 126 case 'f': 127 { 128 #if NSEQUENCER > 0 129 /* XXX XAX 2x check this. */ 130 /* 131 * Both termios and the MIDI sequncer use 'T' to identify 132 * the ioctl, so we have to differntiate them in a different 133 * way. We do it by indexing in the cdevsw with the major 134 * device number and check if that is the sequencer entry. 135 */ 136 struct file *fp; 137 struct filedesc *fdp; 138 struct vnode *vp; 139 struct vattr va; 140 extern int sequencerioctl 141 __P((dev_t, u_long, caddr_t, int, struct proc *)); 142 143 144 fdp = p->p_fd; 145 if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || 146 (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) 147 return EBADF; 148 vp = (struct vnode *)fp->f_data; 149 if (vp->v_type == VCHR && 150 VOP_GETATTR(vp, &va, p->p_ucred, p) == 0 && 151 major(va.va_rdev) < nchrdev && 152 cdevsw[major(va.va_rdev)].d_ioctl == &sequencerioctl) 153 return oss_ioctl_sequencer(p, (void*)LINUX_TO_OSS(uap), 154 retval); 155 else 156 #endif 157 return linux_ioctl_termios(p, uap, retval); 158 } 159 case 0x89: 160 return linux_ioctl_socket(p, uap, retval); 161 default: 162 return linux_machdepioctl(p, uap, retval); 163 } 164 } 165
Indexes created Tue Sep 23 13:09:54 GMT 2025