1 /* $NetBSD: linux32_ioctl.c,v 1.16 2026/09/20 13:43:51 riastradh 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 1.16 2026/09/20 13:43:51 riastradh 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 memset(&ossuap, 0, sizeof(ossuap)); 85 86 switch(group) { 87 case 'T': 88 { 89 /* 90 * Termios, the MIDI sequencer, and timerfd use 'T' to 91 * identify the ioctl, so we have to differentiate them 92 * in another way. 93 * 94 * (XXX We don't bother with MIDI here.) 95 */ 96 struct file *fp; 97 98 if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) 99 return EBADF; 100 101 if (fp->f_type == DTYPE_TIMERFD) { 102 struct linux_sys_ioctl_args ua; 103 104 memset(&ua, 0, sizeof(ua)); 105 SCARG(&ua, fd) = SCARG(uap, fd); 106 SCARG(&ua, com) = SCARG(uap, com); 107 SCARG(&ua, data) = SCARG_P32(uap, data); 108 error = linux_ioctl_timerfd(l, &ua, retval); 109 } else { 110 error = linux32_ioctl_termios(l, uap, retval); 111 } 112 fd_putfile(SCARG(uap, fd)); 113 break; 114 } 115 case 'M': 116 case 'Q': 117 case 'P': 118 SCARG(&ossuap, fd) = SCARG(uap, fd); 119 SCARG(&ossuap, com) = (u_long)SCARG(uap, com); 120 SCARG(&ossuap, data) = SCARG_P32(uap, data); 121 switch (group) { 122 case 'M': 123 error = oss_ioctl_mixer(l, &ossuap, retval); 124 break; 125 case 'Q': 126 error = oss_ioctl_sequencer(l, &ossuap, retval); 127 break; 128 case 'P': 129 error = oss_ioctl_audio(l, &ossuap, retval); 130 break; 131 default: 132 error = EINVAL; /* shutup gcc */ 133 break; 134 } 135 break; 136 case 'V': /* video4linux2 */ 137 case 'd': /* drm */ 138 { 139 struct sys_ioctl_args ua; 140 u_long com = 0; 141 142 memset(&ua, 0, sizeof(ua)); 143 144 if (SCARG(uap, com) & IOC_IN) 145 com |= IOC_OUT; 146 if (SCARG(uap, com) & IOC_OUT) 147 com |= IOC_IN; 148 SCARG(&ua, fd) = SCARG(uap, fd); 149 SCARG(&ua, com) = SCARG(uap, com); 150 SCARG(&ua, com) &= ~IOC_DIRMASK; 151 SCARG(&ua, com) |= com; 152 SCARG(&ua, data) = SCARG_P32(uap, data); 153 error = sys_ioctl(l, (const void *)&ua, retval); 154 break; 155 } 156 case 0x89: 157 error = linux32_ioctl_socket(l, uap, retval); 158 break; 159 default: 160 #ifdef DEBUG_LINUX 161 printf("Not yet implemented ioctl group \'%c\'\n", group); 162 #endif 163 error = EINVAL; 164 break; 165 } 166 167 if (error == EPASSTHROUGH) 168 error = EINVAL; 169 170 return error; 171 } 172
Indexes created Sun Oct 25 00:26:45 UTC 2026