/* * Copyright (c) 1998-2012 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include #include #include #define super IOMediaBSDClient OSDefineMetaClassAndStructors(IODVDMediaBSDClient, IOMediaBSDClient) typedef struct { uint8_t format; uint8_t reserved0008[3]; uint32_t address; uint8_t grantID; uint8_t layer; uint16_t bufferLength; user32_addr_t buffer; } dk_dvd_read_structure_32_t; typedef struct { uint8_t format; uint8_t reserved0008[3]; uint32_t address; uint8_t grantID; uint8_t layer; uint8_t reserved0080[4]; uint16_t bufferLength; user64_addr_t buffer; } dk_dvd_read_structure_64_t; typedef struct { uint8_t format; uint8_t keyClass; uint8_t reserved0016[2]; uint32_t address; uint8_t grantID; uint8_t reserved0072[1]; uint16_t bufferLength; user32_addr_t buffer; } dk_dvd_report_key_32_t; typedef struct { uint8_t format; uint8_t keyClass; uint8_t reserved0016[2]; uint32_t address; uint8_t grantID; uint8_t reserved0072[5]; uint16_t bufferLength; user64_addr_t buffer; } dk_dvd_report_key_64_t; typedef struct { uint8_t format; uint8_t keyClass; uint8_t reserved0016[6]; uint8_t grantID; uint8_t reserved0072[1]; uint16_t bufferLength; user32_addr_t buffer; } dk_dvd_send_key_32_t; typedef struct { uint8_t format; uint8_t keyClass; uint8_t reserved0016[6]; uint8_t grantID; uint8_t reserved0072[5]; uint16_t bufferLength; user64_addr_t buffer; } dk_dvd_send_key_64_t; typedef struct { uint8_t reserved0000[10]; uint16_t bufferLength; user32_addr_t buffer; } dk_dvd_read_disc_info_32_t; typedef struct { uint8_t reserved0000[14]; uint16_t bufferLength; user64_addr_t buffer; } dk_dvd_read_disc_info_64_t; typedef struct { uint8_t reserved0000[4]; uint32_t address; uint8_t addressType; uint8_t reserved0072[1]; uint16_t bufferLength; user32_addr_t buffer; } dk_dvd_read_rzone_info_32_t; typedef struct { uint8_t reserved0000[4]; uint32_t address; uint8_t addressType; uint8_t reserved0072[5]; uint16_t bufferLength; user64_addr_t buffer; } dk_dvd_read_rzone_info_64_t; #define DKIOCDVDREADSTRUCTURE32 _IOW('d', 128, dk_dvd_read_structure_32_t) #define DKIOCDVDREADSTRUCTURE64 _IOW('d', 128, dk_dvd_read_structure_64_t) #define DKIOCDVDREPORTKEY32 _IOW('d', 129, dk_dvd_report_key_32_t) #define DKIOCDVDREPORTKEY64 _IOW('d', 129, dk_dvd_report_key_64_t) #define DKIOCDVDSENDKEY32 _IOW('d', 130, dk_dvd_send_key_32_t) #define DKIOCDVDSENDKEY64 _IOW('d', 130, dk_dvd_send_key_64_t) #define DKIOCDVDREADDISCINFO32 _IOWR('d', 132, dk_dvd_read_disc_info_32_t) #define DKIOCDVDREADDISCINFO64 _IOWR('d', 132, dk_dvd_read_disc_info_64_t) #define DKIOCDVDREADRZONEINFO32 _IOWR('d', 133, dk_dvd_read_rzone_info_32_t) #define DKIOCDVDREADRZONEINFO64 _IOWR('d', 133, dk_dvd_read_rzone_info_64_t) static bool DKIOC_IS_RESERVED(caddr_t data, uint32_t reserved) { UInt32 index; for ( index = 0; index < sizeof(reserved) * 8; index++, reserved >>= 1 ) { if ( (reserved & 1) ) { if ( data[index] ) return true; } } return false; } static IOMemoryDescriptor * DKIOC_PREPARE_BUFFER( user_addr_t address, UInt32 length, IODirection direction, proc_t proc ) { IOMemoryDescriptor * buffer = 0; if ( address && length ) { buffer = IOMemoryDescriptor::withAddressRange( // (create the buffer) /* address */ address, /* length */ length, /* options */ direction, /* task */ (proc == kernproc) ? kernel_task : current_task() ); } if ( buffer ) { if ( buffer->prepare() != kIOReturnSuccess ) // (prepare the buffer) { buffer->release(); buffer = 0; } } return buffer; } static void DKIOC_COMPLETE_BUFFER(IOMemoryDescriptor * buffer) { if ( buffer ) { buffer->complete(); // (complete the buffer) buffer->release(); // (release the buffer) } } IODVDMedia * IODVDMediaBSDClient::getProvider() const { // // Obtain this object's provider. We override the superclass's method // to return a more specific subclass of IOService -- IODVDMedia. This // method serves simply as a convenience to subclass developers. // return (IODVDMedia *) IOService::getProvider(); } int IODVDMediaBSDClient::ioctl( dev_t dev, u_long cmd, caddr_t data, int flags, proc_t proc ) { // // Process a DVD-specific ioctl. // IOMemoryDescriptor * buffer = 0; int error = 0; IOReturn status = kIOReturnSuccess; switch ( cmd ) { case DKIOCDVDREADSTRUCTURE32: // (dk_dvd_read_structure_32_t *) { dk_dvd_read_structure_32_t * request; request = (dk_dvd_read_structure_32_t *) data; if ( proc_is64bit(proc) ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0xE) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readStructure( /* buffer */ buffer, /* format */ (DVDStructureFormat) request->format, /* address */ request->address, /* layer */ request->layer, /* grantID */ request->grantID ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREADSTRUCTURE64: // (dk_dvd_read_structure_64_t *) { dk_dvd_read_structure_64_t * request; request = (dk_dvd_read_structure_64_t *) data; if ( proc_is64bit(proc) == 0 ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3C0E) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readStructure( /* buffer */ buffer, /* format */ (DVDStructureFormat) request->format, /* address */ request->address, /* layer */ request->layer, /* grantID */ request->grantID ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREPORTKEY32: // (dk_dvd_report_key_32_t *) { dk_dvd_report_key_32_t * request = (dk_dvd_report_key_32_t *) data; if ( proc_is64bit(proc) ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x20C) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->reportKey( /* buffer */ buffer, /* keyClass */ (DVDKeyClass) request->keyClass, /* address */ request->address, /* grantID */ request->grantID, /* format */ (DVDKeyFormat) request->format ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREPORTKEY64: // (dk_dvd_report_key_64_t *) { dk_dvd_report_key_64_t * request = (dk_dvd_report_key_64_t *) data; if ( proc_is64bit(proc) == 0 ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3E0C) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->reportKey( /* buffer */ buffer, /* keyClass */ (DVDKeyClass) request->keyClass, /* address */ request->address, /* grantID */ request->grantID, /* format */ (DVDKeyFormat) request->format ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDSENDKEY32: // (dk_dvd_send_key_32_t *) { dk_dvd_send_key_32_t * request = (dk_dvd_send_key_32_t *) data; if ( proc_is64bit(proc) ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x2FC) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionOut, /* proc */ proc ); status = getProvider()->sendKey( /* buffer */ buffer, /* keyClass */ (DVDKeyClass) request->keyClass, /* grantID */ request->grantID, /* format */ (DVDKeyFormat) request->format ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDSENDKEY64: // (dk_dvd_send_key_64_t *) { dk_dvd_send_key_64_t * request = (dk_dvd_send_key_64_t *) data; if ( proc_is64bit(proc) == 0 ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3EFC) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionOut, /* proc */ proc ); status = getProvider()->sendKey( /* buffer */ buffer, /* keyClass */ (DVDKeyClass) request->keyClass, /* grantID */ request->grantID, /* format */ (DVDKeyFormat) request->format ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDGETSPEED: // (uint16_t *) { status = getProvider()->getSpeed((uint16_t *)data); } break; case DKIOCDVDSETSPEED: // (uint16_t *) { status = getProvider()->setSpeed(*(uint16_t *)data); } break; case DKIOCDVDREADDISCINFO32: // (dk_dvd_read_disc_info_32_t *) { dk_dvd_read_disc_info_32_t * request; request = (dk_dvd_read_disc_info_32_t *) data; if ( proc_is64bit(proc) ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3FF) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readDiscInfo( /* buffer */ buffer, /* actualByteCount */ &request->bufferLength ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREADDISCINFO64: // (dk_dvd_read_disc_info_64_t *) { dk_dvd_read_disc_info_64_t * request; request = (dk_dvd_read_disc_info_64_t *) data; if ( proc_is64bit(proc) == 0 ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3FFF) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readDiscInfo( /* buffer */ buffer, /* actualByteCount */ &request->bufferLength ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREADRZONEINFO32: // (dk_dvd_read_rzone_info_32_t *) { dk_dvd_read_rzone_info_32_t * request; request = (dk_dvd_read_rzone_info_32_t *) data; if ( proc_is64bit(proc) ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x20F) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readRZoneInfo( /* buffer */ buffer, /* address */ request->address, /* addressType */ request->addressType, /* actualByteCount */ &request->bufferLength ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; case DKIOCDVDREADRZONEINFO64: // (dk_dvd_read_rzone_info_64_t *) { dk_dvd_read_rzone_info_64_t * request; request = (dk_dvd_read_rzone_info_64_t *) data; if ( proc_is64bit(proc) == 0 ) { error = ENOTTY; break; } if ( DKIOC_IS_RESERVED(data, 0x3E0F) ) { error = EINVAL; break; } buffer = DKIOC_PREPARE_BUFFER( /* address */ request->buffer, /* length */ request->bufferLength, /* direction */ kIODirectionIn, /* proc */ proc ); status = getProvider()->readRZoneInfo( /* buffer */ buffer, /* address */ request->address, /* addressType */ request->addressType, /* actualByteCount */ &request->bufferLength ); status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status; DKIOC_COMPLETE_BUFFER(buffer); } break; default: { // // A foreign ioctl was received. Ask our superclass' opinion. // error = super::ioctl(dev, cmd, data, flags, proc); } break; } return error ? error : getProvider()->errnoFromReturn(status); } OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 0); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 1); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 2); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 3); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 4); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 5); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 6); OSMetaClassDefineReservedUnused(IODVDMediaBSDClient, 7);