1 /* $NetBSD: linux32_ioctl.c,v 1.15 2021/09/19 23:51:37 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: linux32_ioctl.c,v 1.15 2021/09/19 23:51:37 thorpej Exp $"); 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/time.h> 40 #include <sys/ucred.h> 41 #include <sys/ioctl.h> 42 #include <sys/file.h> 43 #include <sys/filedesc.h> 44 45 #include <compat/netbsd32/netbsd32.h> 46 #include <compat/netbsd32/netbsd32_syscallargs.h> 47 48 #include <compat/linux/common/linux_types.h> 49 #include <compat/linux/common/linux_signal.h> 50 #include <compat/linux/common/linux_ipc.h> 51 #include <compat/linux/common/linux_ioctl.h> 52 #include <compat/linux/common/linux_sem.h> 53 #include <compat/linux/linux_syscallargs.h> 54 55 #include <compat/linux32/common/linux32_types.h> 56 #include <compat/linux32/common/linux32_signal.h> 57 #include <compat/linux32/common/linux32_ioctl.h> 58 #include <compat/linux32/common/linux32_termios.h> 59 #include <compat/linux32/common/linux32_sysctl.h> 60 #include <compat/linux32/linux32_syscallargs.h> 61 62 #include <compat/ossaudio/ossaudio.h> 63 #include <compat/ossaudio/ossaudiovar.h> 64 65 int 66 linux32_sys_ioctl(struct lwp *l, const struct linux32_sys_ioctl_args *uap, register_t *retval) 67 { 68 /* { 69 syscallarg(int) fd; 70 syscallarg(netbsd32_u_long) com; 71 syscallarg(netbsd32_charp) data; 72 } */ 73 struct oss_sys_ioctl_args ossuap; 74 int group; 75 int error; 76 77 group = LINUX32_IOCGROUP((int)SCARG(uap, com)); 78 79 #ifdef DEBUG_LINUX 80 printf("linux32_sys_ioctl(%d, 0x%x/\'%c\', %p)\n", SCARG(uap, fd), 81 SCARG(uap, com), (char)group, SCARG_P32(uap, data)); 82 #endif 83 84 switch(group) { 85 case 'T': 86 { 87 /* 88 * Termios, the MIDI sequencer, and timerfd use 'T' to 89 * identify the ioctl, so we have to differentiate them 90 * in another way. 91 * 92 * (XXX We don't bother with MIDI here.) 93 */ 94 struct file *fp; 95 96 if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) 97 return EBADF; 98 99 if (fp->f_type == DTYPE_TIMERFD) { 100 struct linux_sys_ioctl_args ua; 101 SCARG(&ua, fd) = SCARG(uap, fd); 102 SCARG(&ua, com) = SCARG(uap, com); 103 SCARG(&ua, data) = SCARG_P32(uap, data); 104 error = linux_ioctl_timerfd(l, &ua, retval); 105 } else { 106 error = linux32_ioctl_termios(l, uap, retval); 107 } 108 fd_putfile(SCARG(uap, fd)); 109 break; 110 } 111 case 'M': 112 case 'Q': 113 case 'P': 114 SCARG(&ossuap, fd) = SCARG(uap, fd); 115 SCARG(&ossuap, com) = (u_long)SCARG(uap, com); 116 SCARG(&ossuap, data) = SCARG_P32(uap, data); 117 switch (group) { 118 case 'M': 119 error = oss_ioctl_mixer(l, &ossuap, retval); 120 break; 121 case 'Q': 122 error = oss_ioctl_sequencer(l, &ossuap, retval); 123 break; 124 case 'P': 125 error = oss_ioctl_audio(l, &ossuap, retval); 126 break; 127 default: 128 error = EINVAL; /* shutup gcc */ 129 break; 130 } 131 break; 132 case 'V': /* video4linux2 */ 133 case 'd': /* drm */ 134 { 135 struct sys_ioctl_args ua; 136 u_long com = 0; 137 if (SCARG(uap, com) & IOC_IN) 138 com |= IOC_OUT; 139 if (SCARG(uap, com) & IOC_OUT) 140 com |= IOC_IN; 141 SCARG(&ua, fd) = SCARG(uap, fd); 142 SCARG(&ua, com) = SCARG(uap, com); 143 SCARG(&ua, com) &= ~IOC_DIRMASK; 144 SCARG(&ua, com) |= com; 145 SCARG(&ua, data) = SCARG_P32(uap, data); 146 error = sys_ioctl(l, (const void *)&ua, retval); 147 break; 148 } 149 case 0x89: 150 error = linux32_ioctl_socket(l, uap, retval); 151 break; 152 default: 153 #ifdef DEBUG_LINUX 154 printf("Not yet implemented ioctl group \'%c\'\n", group); 155 #endif 156 error = EINVAL; 157 break; 158 } 159 160 if (error == EPASSTHROUGH) 161 error = EINVAL; 162 163 return error; 164 } 165
Indexes created Sat Sep 20 22:09:52 GMT 2025