IODVDMediaBSDClient.cpp [plain text]
#include <sys/errno.h>
#include <sys/proc.h>
#include <IOKit/storage/IODVDMediaBSDClient.h>
#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( address,
length,
direction,
(proc == kernproc) ? kernel_task : current_task() );
}
if ( buffer )
{
if ( buffer->prepare() != kIOReturnSuccess ) {
buffer->release();
buffer = 0;
}
}
return buffer;
}
static void DKIOC_COMPLETE_BUFFER(IOMemoryDescriptor * buffer)
{
if ( buffer )
{
buffer->complete(); buffer->release(); }
}
IODVDMedia * IODVDMediaBSDClient::getProvider() const
{
return (IODVDMedia *) IOService::getProvider();
}
int IODVDMediaBSDClient::ioctl( dev_t dev,
u_long cmd,
caddr_t data,
int flags,
proc_t proc )
{
IOMemoryDescriptor * buffer = 0;
int error = 0;
IOReturn status = kIOReturnSuccess;
switch ( cmd )
{
case DKIOCDVDREADSTRUCTURE32: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readStructure(
buffer,
(DVDStructureFormat) request->format,
request->address,
request->layer,
request->grantID );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREADSTRUCTURE64: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readStructure(
buffer,
(DVDStructureFormat) request->format,
request->address,
request->layer,
request->grantID );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREPORTKEY32: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->reportKey(
buffer,
(DVDKeyClass) request->keyClass,
request->address,
request->grantID,
(DVDKeyFormat) request->format );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREPORTKEY64: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->reportKey(
buffer,
(DVDKeyClass) request->keyClass,
request->address,
request->grantID,
(DVDKeyFormat) request->format );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDSENDKEY32: {
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(
request->buffer,
request->bufferLength,
kIODirectionOut,
proc );
status = getProvider()->sendKey(
buffer,
(DVDKeyClass) request->keyClass,
request->grantID,
(DVDKeyFormat) request->format );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDSENDKEY64: {
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(
request->buffer,
request->bufferLength,
kIODirectionOut,
proc );
status = getProvider()->sendKey(
buffer,
(DVDKeyClass) request->keyClass,
request->grantID,
(DVDKeyFormat) request->format );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDGETSPEED: {
status = getProvider()->getSpeed((uint16_t *)data);
} break;
case DKIOCDVDSETSPEED: {
status = getProvider()->setSpeed(*(uint16_t *)data);
} break;
case DKIOCDVDREADDISCINFO32: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readDiscInfo(
buffer,
&request->bufferLength );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREADDISCINFO64: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readDiscInfo(
buffer,
&request->bufferLength );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREADRZONEINFO32: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readRZoneInfo(
buffer,
request->address,
request->addressType,
&request->bufferLength );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
case DKIOCDVDREADRZONEINFO64: {
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(
request->buffer,
request->bufferLength,
kIODirectionIn,
proc );
status = getProvider()->readRZoneInfo(
buffer,
request->address,
request->addressType,
&request->bufferLength );
status = (status == kIOReturnUnderrun) ? kIOReturnSuccess : status;
DKIOC_COMPLETE_BUFFER(buffer);
} break;
default:
{
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);