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linux32_ioctl.c revision 1.13.64.1 
      1 /*	$NetBSD: linux32_ioctl.c,v 1.13.64.1 2020/04/13 08:04:16 martin 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 1.13.64.1 2020/04/13 08:04:16 martin 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 
     43 #include <compat/netbsd32/netbsd32.h>
     44 #include <compat/netbsd32/netbsd32_syscallargs.h>
     45 
     46 #include <compat/linux/common/linux_types.h>
     47 #include <compat/linux/common/linux_signal.h>
     48 #include <compat/linux/common/linux_ipc.h>
     49 #include <compat/linux/common/linux_sem.h>
     50 #include <compat/linux/linux_syscallargs.h>
     51 
     52 #include <compat/linux32/common/linux32_types.h>
     53 #include <compat/linux32/common/linux32_signal.h>
     54 #include <compat/linux32/common/linux32_ioctl.h>
     55 #include <compat/linux32/common/linux32_termios.h>
     56 #include <compat/linux32/common/linux32_sysctl.h>
     57 #include <compat/linux32/linux32_syscallargs.h>
     58 
     59 #include <compat/ossaudio/ossaudio.h>
     60 #include <compat/ossaudio/ossaudiovar.h>
     61 
     62 int
     63 linux32_sys_ioctl(struct lwp *l, const struct linux32_sys_ioctl_args *uap, register_t *retval)
     64 {
     65 	/* {
     66 		syscallarg(int) fd;
     67 		syscallarg(netbsd32_u_long) com;
     68 		syscallarg(netbsd32_charp) data;
     69 	} */
     70 	struct oss_sys_ioctl_args ossuap;
     71 	int group;
     72 	int error;
     73 
     74 	group = LINUX32_IOCGROUP((int)SCARG(uap, com));
     75 
     76 #ifdef DEBUG_LINUX
     77 	printf("linux32_sys_ioctl(%d, 0x%x/\'%c\', %p)\n", SCARG(uap, fd),
     78 	    SCARG(uap, com), (char)group, SCARG_P32(uap, data));
     79 #endif
     80 
     81 	switch(group) {
     82 	case 'T':
     83 		error = linux32_ioctl_termios(l, uap, retval);
     84 		break;
     85 	case 'M':
     86 	case 'Q':
     87 	case 'P':
     88 		SCARG(&ossuap, fd) = SCARG(uap, fd);
     89 		SCARG(&ossuap, com) = (u_long)SCARG(uap, com);
     90 		SCARG(&ossuap, data) = SCARG_P32(uap, data);
     91 		switch (group) {
     92 		case 'M':
     93 			error = oss_ioctl_mixer(l, &ossuap, retval);
     94 			break;
     95 		case 'Q':
     96 			error = oss_ioctl_sequencer(l, &ossuap, retval);
     97 			break;
     98 		case 'P':
     99 			error = oss_ioctl_audio(l, &ossuap, retval);
    100 			break;
    101 		default:
    102 			error = EINVAL; /* shutup gcc */
    103 			break;
    104 		}
    105 		break;
    106 	case 'V':	/* video4linux2 */
    107 	case 'd':	/* drm */
    108 	{
    109 		struct sys_ioctl_args ua;
    110 		u_long com = 0;
    111 		if (SCARG(uap, com) & IOC_IN)
    112 			com |= IOC_OUT;
    113 		if (SCARG(uap, com) & IOC_OUT)
    114 			com |= IOC_IN;
    115 		SCARG(&ua, fd) = SCARG(uap, fd);
    116 		SCARG(&ua, com) = SCARG(uap, com);
    117 		SCARG(&ua, com) &= ~IOC_DIRMASK;
    118 		SCARG(&ua, com) |= com;
    119 		SCARG(&ua, data) = SCARG_P32(uap, data);
    120 		error = sys_ioctl(l, (const void *)&ua, retval);
    121 		break;
    122 	}
    123 	case 0x89:
    124 		error = linux32_ioctl_socket(l, uap, retval);
    125 		break;
    126 	default:
    127 #ifdef DEBUG_LINUX
    128 		printf("Not yet implemented ioctl group \'%c\'\n", group);
    129 #endif
    130 		error = EINVAL;
    131 		break;
    132 	}
    133 
    134 	if (error == EPASSTHROUGH)
    135 		error = EINVAL;
    136 
    137 	return error;
    138 }
    139