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v0.1
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matthieu committed Dec 18, 2020
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12 changes: 12 additions & 0 deletions Entitlements.plist
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.keystore.access-keychain-keys</key>
<true/>
<key>com.apple.keystore.device</key>
<true/>
<key>platform-application</key> <true/>
<key>com.apple.private.security.no-container</key> <true/>
</dict>
</plist>
92 changes: 92 additions & 0 deletions IOKit.c
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#include <stdio.h>
#include <string.h>
#include <mach/mach.h>
#include "IOKit.h"

struct ioconnectCache {
const char* serviceName;
io_connect_t conn;
};
#define IOCONNECT_CACHE_ENTRIES 10

struct ioconnectCache cache[IOCONNECT_CACHE_ENTRIES]={{NULL, 0}};

void __attribute__((destructor)) IOKit_destruct()
{
int i;
for (i=0; i < IOCONNECT_CACHE_ENTRIES && cache[i].conn != 0; i++) {
//printf("Closing %s\n", cache[i].serviceName);
IOServiceClose(cache[i].conn);
}
}

io_connect_t IOKit_getConnect(const char* serviceName)
{
IOReturn ret;
io_connect_t conn = 0;
int i;

for (i=0; i < IOCONNECT_CACHE_ENTRIES && cache[i].serviceName != NULL; i++) {
if (!strcmp(serviceName, cache[i].serviceName))
{
//printf("got cache for %s\n", serviceName);
return cache[i].conn;
}
}

CFMutableDictionaryRef dict = IOServiceMatching(serviceName);
io_service_t dev = IOServiceGetMatchingService(kIOMasterPortDefault, dict);

if(!dev) {
fprintf(stderr, "FAIL: Could not get %s service\n", serviceName);
return -1;
}

ret = IOServiceOpen(dev, mach_task_self(), 0, &conn);

IOObjectRelease(dev);
if(ret != kIOReturnSuccess) {
fprintf(stderr, "FAIL: Cannot open service %s\n", serviceName);
return -1;
}

if (i < 10) {
cache[i].serviceName = serviceName;
cache[i].conn = conn;
}

return conn;
}

IOReturn IOKit_call(const char* serviceName,
uint32_t selector,
const uint64_t *input,
uint32_t inputCnt,
const void *inputStruct,
size_t inputStructCnt,
uint64_t *output,
uint32_t *outputCnt,
void *outputStruct,
size_t *outputStructCnt)
{
IOReturn ret;
io_connect_t conn = IOKit_getConnect(serviceName);

ret = IOConnectCallMethod(conn,
selector,
input,
inputCnt,
inputStruct,
inputStructCnt,
output,
outputCnt,
outputStruct,
outputStructCnt);

if (ret != kIOReturnSuccess)
{
fprintf(stderr, "IOConnectCallMethod returned %x\n", ret);
}

return ret;
}
75 changes: 75 additions & 0 deletions IOKit.h
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//#include <IOKit/IOKitLib.h>
#ifndef __IOKIT_H
#define __IOKIT_H

#include <CoreFoundation/CoreFoundation.h>
#include <stdint.h>
#include <mach/mach_types.h>
#include "IOReturn.h"

typedef mach_port_t io_connect_t;
typedef mach_port_t io_service_t;
typedef mach_port_t io_object_t;
const mach_port_t kIOMasterPortDefault;

kern_return_t
IOServiceOpen(
io_service_t service,
task_port_t owningTask,
uint32_t type,
io_connect_t * connect );

kern_return_t
IOServiceClose(
io_connect_t connect );

CFMutableDictionaryRef
IOServiceMatching(
const char * name );

io_service_t
IOServiceGetMatchingService(
mach_port_t masterPort,
CFDictionaryRef matching );

kern_return_t
IOObjectRelease(
io_object_t object );

kern_return_t
IOConnectCallMethod(
mach_port_t connection, // In
uint32_t selector, // In
const uint64_t *input, // In
uint32_t inputCnt, // In
const void *inputStruct, // In
size_t inputStructCnt, // In
uint64_t *output, // Out
uint32_t *outputCnt, // In/Out
void *outputStruct, // Out
size_t *outputStructCnt); // In/Out

kern_return_t
IOConnectCallStructMethod(
mach_port_t connection, // In
uint32_t selector, // In
const void *inputStruct, // In
size_t inputStructCnt, // In
void *outputStruct, // Out
size_t *outputStructCnt); // In/Out

//iokit wrappers
io_connect_t IOKit_getConnect(const char* serviceName);

IOReturn IOKit_call(const char* serviceName,
uint32_t selector,
const uint64_t *input,
uint32_t inputCnt,
const void *inputStruct,
size_t inputStructCnt,
uint64_t *output,
uint32_t *outputCnt,
void *outputStruct,
size_t *outputStructCnt);

#endif
143 changes: 143 additions & 0 deletions IOReturn.h
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/*
* Copyright (c) 1998-2002 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_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. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* HISTORY
*/

/*
* Core IOReturn values. Others may be family defined.
*/

#ifndef __IOKIT_IORETURN_H
#define __IOKIT_IORETURN_H

#ifdef __cplusplus
extern "C" {
#endif

#include <mach/error.h>

typedef kern_return_t IOReturn;

#ifndef sys_iokit
#define sys_iokit err_system(0x38)
#endif /* sys_iokit */
#define sub_iokit_common err_sub(0)
#define sub_iokit_usb err_sub(1)
#define sub_iokit_firewire err_sub(2)
#define sub_iokit_block_storage err_sub(4)
#define sub_iokit_graphics err_sub(5)
#define sub_iokit_networking err_sub(6)
#define sub_iokit_bluetooth err_sub(8)
#define sub_iokit_pmu err_sub(9)
#define sub_iokit_acpi err_sub(10)
#define sub_iokit_smbus err_sub(11)
#define sub_iokit_ahci err_sub(12)
#define sub_iokit_powermanagement err_sub(13)
#define sub_iokit_hidsystem err_sub(14)
#define sub_iokit_scsi err_sub(16)
//#define sub_iokit_pccard err_sub(21)
#define sub_iokit_thunderbolt err_sub(29)

#define sub_iokit_audio_video err_sub(0x45)
#define sub_iokit_hsic err_sub(0x147)
#define sub_iokit_sdio err_sub(0x174)
#define sub_iokit_wlan err_sub(0x208)

#define sub_iokit_vendor_specific err_sub(-2)
#define sub_iokit_reserved err_sub(-1)

#define iokit_common_err(return) (sys_iokit|sub_iokit_common|return)
#define iokit_family_err(sub,return) (sys_iokit|sub|return)
#define iokit_vendor_specific_err(return) (sys_iokit|sub_iokit_vendor_specific|return)

#define kIOReturnSuccess KERN_SUCCESS // OK
#define kIOReturnError iokit_common_err(0x2bc) // general error
#define kIOReturnNoMemory iokit_common_err(0x2bd) // can't allocate memory
#define kIOReturnNoResources iokit_common_err(0x2be) // resource shortage
#define kIOReturnIPCError iokit_common_err(0x2bf) // error during IPC
#define kIOReturnNoDevice iokit_common_err(0x2c0) // no such device
#define kIOReturnNotPrivileged iokit_common_err(0x2c1) // privilege violation
#define kIOReturnBadArgument iokit_common_err(0x2c2) // invalid argument
#define kIOReturnLockedRead iokit_common_err(0x2c3) // device read locked
#define kIOReturnLockedWrite iokit_common_err(0x2c4) // device write locked
#define kIOReturnExclusiveAccess iokit_common_err(0x2c5) // exclusive access and
// device already open
#define kIOReturnBadMessageID iokit_common_err(0x2c6) // sent/received messages
// had different msg_id
#define kIOReturnUnsupported iokit_common_err(0x2c7) // unsupported function
#define kIOReturnVMError iokit_common_err(0x2c8) // misc. VM failure
#define kIOReturnInternalError iokit_common_err(0x2c9) // internal error
#define kIOReturnIOError iokit_common_err(0x2ca) // General I/O error
//#define kIOReturn???Error iokit_common_err(0x2cb) // ???
#define kIOReturnCannotLock iokit_common_err(0x2cc) // can't acquire lock
#define kIOReturnNotOpen iokit_common_err(0x2cd) // device not open
#define kIOReturnNotReadable iokit_common_err(0x2ce) // read not supported
#define kIOReturnNotWritable iokit_common_err(0x2cf) // write not supported
#define kIOReturnNotAligned iokit_common_err(0x2d0) // alignment error
#define kIOReturnBadMedia iokit_common_err(0x2d1) // Media Error
#define kIOReturnStillOpen iokit_common_err(0x2d2) // device(s) still open
#define kIOReturnRLDError iokit_common_err(0x2d3) // rld failure
#define kIOReturnDMAError iokit_common_err(0x2d4) // DMA failure
#define kIOReturnBusy iokit_common_err(0x2d5) // Device Busy
#define kIOReturnTimeout iokit_common_err(0x2d6) // I/O Timeout
#define kIOReturnOffline iokit_common_err(0x2d7) // device offline
#define kIOReturnNotReady iokit_common_err(0x2d8) // not ready
#define kIOReturnNotAttached iokit_common_err(0x2d9) // device not attached
#define kIOReturnNoChannels iokit_common_err(0x2da) // no DMA channels left
#define kIOReturnNoSpace iokit_common_err(0x2db) // no space for data
//#define kIOReturn???Error iokit_common_err(0x2dc) // ???
#define kIOReturnPortExists iokit_common_err(0x2dd) // port already exists
#define kIOReturnCannotWire iokit_common_err(0x2de) // can't wire down
// physical memory
#define kIOReturnNoInterrupt iokit_common_err(0x2df) // no interrupt attached
#define kIOReturnNoFrames iokit_common_err(0x2e0) // no DMA frames enqueued
#define kIOReturnMessageTooLarge iokit_common_err(0x2e1) // oversized msg received
// on interrupt port
#define kIOReturnNotPermitted iokit_common_err(0x2e2) // not permitted
#define kIOReturnNoPower iokit_common_err(0x2e3) // no power to device
#define kIOReturnNoMedia iokit_common_err(0x2e4) // media not present
#define kIOReturnUnformattedMedia iokit_common_err(0x2e5)// media not formatted
#define kIOReturnUnsupportedMode iokit_common_err(0x2e6) // no such mode
#define kIOReturnUnderrun iokit_common_err(0x2e7) // data underrun
#define kIOReturnOverrun iokit_common_err(0x2e8) // data overrun
#define kIOReturnDeviceError iokit_common_err(0x2e9) // the device is not working properly!
#define kIOReturnNoCompletion iokit_common_err(0x2ea) // a completion routine is required
#define kIOReturnAborted iokit_common_err(0x2eb) // operation aborted
#define kIOReturnNoBandwidth iokit_common_err(0x2ec) // bus bandwidth would be exceeded
#define kIOReturnNotResponding iokit_common_err(0x2ed) // device not responding
#define kIOReturnIsoTooOld iokit_common_err(0x2ee) // isochronous I/O request for distant past!
#define kIOReturnIsoTooNew iokit_common_err(0x2ef) // isochronous I/O request for distant future
#define kIOReturnNotFound iokit_common_err(0x2f0) // data was not found
#define kIOReturnInvalid iokit_common_err(0x1) // should never be seen

#ifdef __cplusplus
}
#endif

#endif /* ! __IOKIT_IORETURN_H */
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