long
LoadDriverMKext( char * fileSpec )
{
unsigned long driversAddr, driversLength;
long length;
char segName[32];
DriversPackage * package;
#define GetPackageElement(e) OSSwapBigToHostInt32(package->e)
// Load the MKext.
length = LoadThinFatFile(fileSpec, (void **)&package);
if (length < sizeof (DriversPackage)) {
return -1;
}
// call hook to notify modules that the mkext has been loaded
execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, (void*) &length, NULL);
// Verify the MKext.
if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||
( GetPackageElement(signature2) != kDriverPackageSignature2) ||
( GetPackageElement(length) > kLoadSize ) ||
( GetPackageElement(adler32) !=
Adler32((unsigned char *)&package->version, GetPackageElement(length) - 0x10) ) )
{
return -1;
}
// Make space for the MKext.
driversLength = GetPackageElement(length);
driversAddr = AllocateKernelMemory(driversLength);
// Copy the MKext.
memcpy((void *)driversAddr, (void *)package, driversLength);
// Add the MKext to the memory map.
snprintf(segName, sizeof(segName), "DriversPackage-%lx", driversAddr);
AllocateMemoryRange(segName, driversAddr, driversLength, kBootDriverTypeMKEXT);
return 0;
}
static long
LoadDriverMKext( char * fileSpec )
{
unsigned long driversAddr, driversLength;
long length;
char segName[32];
DriversPackage * package = (DriversPackage *)kLoadAddr;
#define GetPackageElement(e) OSSwapBigToHostInt32(package->e)
// Load the MKext.
length = LoadFile(fileSpec);
if (length == -1) return -1;
ThinFatFile((void **)&package, &length);
// Verify the MKext.
if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||
( GetPackageElement(signature2) != kDriverPackageSignature2) ||
( GetPackageElement(length) > kLoadSize ) ||
( GetPackageElement(alder32) !=
Alder32((char *)&package->version, GetPackageElement(length) - 0x10) ) )
{
return -1;
}
// Make space for the MKext.
driversLength = GetPackageElement(length);
driversAddr = AllocateKernelMemory(driversLength);
// Copy the MKext.
memcpy((void *)driversAddr, (void *)package, driversLength);
// Add the MKext to the memory map.
sprintf(segName, "DriversPackage-%lx", driversAddr);
AllocateMemoryRange(segName, driversAddr, driversLength,
kBootDriverTypeMKEXT);
return 0;
}