1 /* $NetBSD: linux_ioctl.c,v 1.22 1998/12/15 10:32:16 augustss Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and 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 #include "sequencer.h" 40 41 #include <sys/param.h> 42 #include <sys/proc.h> 43 #include <sys/systm.h> 44 #include <sys/conf.h> 45 #include <sys/ioctl.h> 46 #include <sys/mount.h> 47 #include <sys/file.h> 48 #include <sys/vnode.h> 49 #include <sys/filedesc.h> 50 51 #include <sys/socket.h> 52 #include <net/if.h> 53 #include <sys/sockio.h> 54 55 #include <sys/syscallargs.h> 56 57 #include <compat/linux/common/linux_types.h> 58 #include <compat/linux/common/linux_signal.h> 59 #include <compat/linux/common/linux_ioctl.h> 60 61 #include <compat/linux/linux_syscallargs.h> 62 63 #include <compat/ossaudio/ossaudio.h> 64 #define LINUX_TO_OSS(v) (v) /* do nothing, same ioctl() encoding */ 65 66 /* 67 * Most ioctl command are just converted to their NetBSD values, 68 * and passed on. The ones that take structure pointers and (flag) 69 * values need some massaging. This is done the usual way by 70 * allocating stackgap memory, letting the actual ioctl call do its 71 * work there and converting back the data afterwards. 72 */ 73 int 74 linux_sys_ioctl(p, v, retval) 75 struct proc *p; 76 void *v; 77 register_t *retval; 78 { 79 struct linux_sys_ioctl_args /* { 80 syscallarg(int) fd; 81 syscallarg(u_long) com; 82 syscallarg(caddr_t) data; 83 } */ *uap = v; 84 85 switch (LINUX_IOCGROUP(SCARG(uap, com))) { 86 case 'M': 87 return oss_ioctl_mixer(p, LINUX_TO_OSS(v), retval); 88 case 'Q': 89 return oss_ioctl_sequencer(p, LINUX_TO_OSS(v), retval); 90 case 'P': 91 return oss_ioctl_audio(p, LINUX_TO_OSS(v), retval); 92 case 'S': 93 return linux_ioctl_cdrom(p, uap, retval); 94 case 't': 95 case 'f': 96 return linux_ioctl_termios(p, uap, retval); 97 case 'T': 98 { 99 #if NSEQUENCER > 0 100 /* XXX XAX 2x check this. */ 101 /* 102 * Both termios and the MIDI sequncer use 'T' to identify 103 * the ioctl, so we have to differentiate them in another 104 * way. We do it by indexing in the cdevsw with the major 105 * device number and check if that is the sequencer entry. 106 */ 107 struct file *fp; 108 struct filedesc *fdp; 109 struct vnode *vp; 110 struct vattr va; 111 extern int sequencerioctl 112 __P((dev_t, u_long, caddr_t, int, struct proc *)); 113 114 fdp = p->p_fd; 115 if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || 116 (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) 117 return EBADF; 118 if (fp->f_type == DTYPE_VNODE && 119 (vp = (struct vnode *)fp->f_data) != NULL && 120 vp->v_type == VCHR && 121 VOP_GETATTR(vp, &va, p->p_ucred, p) == 0 && 122 major(va.va_rdev) < nchrdev && 123 cdevsw[major(va.va_rdev)].d_ioctl == &sequencerioctl) 124 return oss_ioctl_sequencer(p, (void*)LINUX_TO_OSS(uap), 125 retval); 126 else 127 #endif 128 return linux_ioctl_termios(p, uap, retval); 129 } 130 case 0x89: 131 return linux_ioctl_socket(p, uap, retval); 132 default: 133 return linux_machdepioctl(p, uap, retval); 134 } 135 } 136