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@vagelim
Created Apr 19, 2020
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returns secret osk needed to run macos hackintosh
/*
* smc_read.c: Written for Mac OS X 10.5. Compile as follows:
*
* gcc -Wall -o smc_read smc_read.c -framework IOKit
*/
#include <stdio.h>
#include <IOKit/IOKitLib.h>
typedef struct {
uint32_t key;
uint8_t __d0[22];
uint32_t datasize;
uint8_t __d1[10];
uint8_t cmd;
uint32_t __d2;
uint8_t data[32];
} AppleSMCBuffer_t;
int
main(void)
{
io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault,
IOServiceMatching("AppleSMC"));
if (!service)
return -1;
io_connect_t port = (io_connect_t)0;
kern_return_t kr = IOServiceOpen(service, mach_task_self(), 0, &port);
IOObjectRelease(service);
if (kr != kIOReturnSuccess)
return kr;
AppleSMCBuffer_t inputStruct = { 'OSK0', {0}, 32, {0}, 5, }, outputStruct;
size_t outputStructCnt = sizeof(outputStruct);
kr = IOConnectCallStructMethod((mach_port_t)port, (uint32_t)2,
(const void*)&inputStruct, sizeof(inputStruct),
(void*)&outputStruct, &outputStructCnt);
if (kr != kIOReturnSuccess)
return kr;
int i = 0;
for (i = 0; i < 32; i++)
printf("%c", outputStruct.data[i]);
inputStruct.key = 'OSK1';
kr = IOConnectCallStructMethod((mach_port_t)port, (uint32_t)2,
(const void*)&inputStruct, sizeof(inputStruct),
(void*)&outputStruct, &outputStructCnt);
if (kr == kIOReturnSuccess)
for (i = 0; i < 32; i++)
printf("%c", outputStruct.data[i]);
printf("\n");
return IOServiceClose(port);
}
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