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Commit 08bc0c87 authored by John Hodge's avatar John Hodge
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Modules/LVM - Framework for partitioning type detection

parent 3fadd995
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......@@ -11,6 +11,7 @@
#include "mbr.h"
// === PROTOTYPES ===
int LVM_MBR_Detect(tLVM_Vol *Volume);
int LVM_MBR_CountSubvolumes(tLVM_Vol *Volume, void *FirstSector);
void LVM_MBR_PopulateSubvolumes(tLVM_Vol *Volume, void *FirstSector);
Uint64 LVM_MBR_int_ReadExt(tLVM_Vol *Volume, Uint64 Addr, Uint64 *Base, Uint64 *Length);
......@@ -23,13 +24,25 @@ tLVM_Format gLVM_MBRType = {
};
// === CODE ===
int LVM_MBR_Detect(tLVM_Vol *Volume)
{
tMBR mbr;
// TODO: handle non-512 byte sectors
if( LVM_int_ReadVolume( Volume, 0, 1, &mbr ) != 0 )
return -1; // Stop on Errors
if( mbr.BootFlag != LittleEndian16(0xAA55) )
return 0;
return 1;
}
/**
* \brief Initialise a volume as
*/
int LVM_MBR_CountSubvolumes(tLVM_Vol *Volume, void *FirstSector)
{
tMBR *MBR = FirstSector;
int i;
Uint64 extendedLBA;
Uint64 base, len;
int numPartitions = 0;
......@@ -39,7 +52,7 @@ int LVM_MBR_CountSubvolumes(tLVM_Vol *Volume, void *FirstSector)
// Count Partitions
numPartitions = 0;
extendedLBA = 0;
for( i = 0; i < 4; i ++ )
for( int i = 0; i < 4; i ++ )
{
if( MBR->Parts[i].SystemID == 0 ) continue;
......
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