void PartitionHandle::CheckEBR(u8 PartNum, sec_t ebr_lba)
{
EXTENDED_BOOT_RECORD *ebr = (EXTENDED_BOOT_RECORD*)MEM2_alloc(MAX_BYTES_PER_SECTOR);
if(ebr == NULL)
return;
sec_t next_erb_lba = 0;
do
{
// Read and validate the extended boot record
if(!interface->readSectors(ebr_lba + next_erb_lba, 1, ebr))
{
MEM2_free(ebr);
return;
}
if(ebr->signature != EBR_SIGNATURE && ebr->signature != EBR_SIGNATURE_MOD)
{
MEM2_free(ebr);
return;
}
if(le32(ebr->partition.block_count) > 0 && !IsExisting(ebr_lba + next_erb_lba + le32(ebr->partition.lba_start)))
{
AddPartition(PartFromType(ebr->partition.type), ebr_lba + next_erb_lba + le32(ebr->partition.lba_start),
le32(ebr->partition.block_count), (ebr->partition.status == PARTITION_BOOTABLE), ebr->partition.type, PartNum);
}
// Get the start sector of the current partition
// and the next extended boot record in the chain
next_erb_lba = le32(ebr->next_ebr.lba_start);
}
while(next_erb_lba > 0);
MEM2_free(ebr);
}
// リスト
BOOL CPpcMainWnd::AddFile(LPTSTR pszFile, LPTSTR pszTitle)
{
if (!m_hMap) return FALSE;
// 存在チェック
if (IsExisting(pszFile))
return FALSE;
// 有効性チェック
if (!IsValidStream(pszFile))
return FALSE;
// リストに追加
FILEINFO* pInfo = new FILEINFO;
if (pszTitle)
_tcscpy(pInfo->szDisplayName, pszTitle);
else
MAP_GetId3TagFile(m_hMap, pszFile, &pInfo->tag);
_tcscpy(pInfo->szPath, pszFile);
m_pListFile->Add((DWORD)pInfo);
// リストビューに追加
TCHAR szTitle[MAX_PATH];
GetTitle(m_pListFile->GetCount() - 1, szTitle);
LVITEM lvi = {0};
lvi.mask = LVIF_TEXT;
lvi.iItem = ListView_GetItemCount(m_hwndLV);
lvi.pszText = szTitle;
ListView_InsertItem(m_hwndLV, &lvi);
// 開いていない場合は開く
OpenFirstFile();
return TRUE;
}
s8 PartitionHandle::CheckGPT(u8 PartNum)
{
GPT_HEADER *gpt_header = (GPT_HEADER*)MEM2_alloc(MAX_BYTES_PER_SECTOR);
if(gpt_header == NULL)
return -1;
// Read and validate the extended boot record
if(!interface->readSectors(1, 1, gpt_header))
{
MEM2_free(gpt_header);
return -1;
}
if(strncmp(gpt_header->magic, "EFI PART", 8) != 0)
{
MEM2_free(gpt_header);
return -1;
}
gpt_header->part_table_lba = le64(gpt_header->part_table_lba);
gpt_header->part_entries = le32(gpt_header->part_entries);
gpt_header->part_entry_size = le32(gpt_header->part_entry_size);
gpt_header->part_entry_checksum = le32(gpt_header->part_entry_checksum);
u8 *sector_buf = (u8*)MEM2_alloc(MAX_BYTES_PER_SECTOR);
if(sector_buf == NULL)
{
MEM2_free(gpt_header);
return -1;
}
u64 next_lba = gpt_header->part_table_lba;
for(u32 i = 0; i < gpt_header->part_entries; ++i)
{
if(!interface->readSectors(next_lba, 1, sector_buf))
break;
for(u32 n = 0; n < BYTES_PER_SECTOR/gpt_header->part_entry_size; ++n, ++i)
{
GUID_PART_ENTRY *part_entry = (GUID_PART_ENTRY*)(sector_buf+gpt_header->part_entry_size*n);
if(memcmp(part_entry->part_type_guid, TYPE_UNUSED, 16) == 0)
continue;
if(IsExisting(le64(part_entry->part_first_lba)))
continue;
bool bootable = (memcmp(part_entry->part_type_guid, TYPE_BIOS, 16) == 0);
AddPartition("GUID-Entry", le64(part_entry->part_first_lba), le64(part_entry->part_last_lba), bootable, PARTITION_TYPE_GPT, PartNum);
}
next_lba++;
}
MEM2_free(sector_buf);
MEM2_free(gpt_header);
return 0;
}
s8 PartitionHandle::FindPartitions()
{
MASTER_BOOT_RECORD *mbr = (MASTER_BOOT_RECORD*)MEM2_alloc(MAX_BYTES_PER_SECTOR);
if(mbr == NULL)
return -1;
// Read the first sector on the device
if(!interface->readSectors(0, 1, mbr))
{
MEM2_free(mbr);
return -1;
}
// If this is the devices master boot record
if(mbr->signature != MBR_SIGNATURE && mbr->signature != MBR_SIGNATURE_MOD)
{
MEM2_free(mbr);
return -1;
}
for(u8 i = 0; i < 4; i++)
{
PARTITION_RECORD *partition = (PARTITION_RECORD *)&mbr->partitions[i];
if(partition->type == PARTITION_TYPE_GPT)
{
s8 ret = CheckGPT(i);
if(ret == 0) // if it's a GPT we don't need to go on looking through the mbr anymore
return ret;
}
if(partition->type == PARTITION_TYPE_DOS33_EXTENDED || partition->type == PARTITION_TYPE_WIN95_EXTENDED)
{
CheckEBR(i, le32(partition->lba_start));
continue;
}
if(le32(partition->block_count) > 0 && !IsExisting(le32(partition->lba_start)))
{
AddPartition(PartFromType(partition->type), le32(partition->lba_start),
le32(partition->block_count), (partition->status == PARTITION_BOOTABLE), partition->type, i);
}
}
MEM2_free(mbr);
return 0;
}
void PartitionHandle::AddPartition(const char * name, u64 lba_start, u64 sec_count, bool bootable, u8 part_type, u8 part_num, u32 EBR_Sector)
{
if(IsExisting(lba_start))
return;
u8 *buffer = new u8[MAX_SECTOR_SIZE];
if (!interface->readSectors(lba_start, 1, buffer)) {
delete [] buffer;
return;
}
//! Partition typ can be missleading the correct partition format. Stupid lazy ass Partition Editors.
if((memcmp(buffer + 0x36, "FAT", 3) == 0 || memcmp(buffer + 0x52, "FAT", 3) == 0) &&
strncmp(PartFromType(part_type), "FAT", 3) != 0)
{
name = "FAT32";
part_type = 0x0c;
}
if (memcmp(buffer + 0x03, "NTFS", 4) == 0)
{
name = "NTFS";
part_type = 0x07;
}
int part = PartitionList.size();
PartitionList.resize(part+1);
PartitionList[part].FSName = name;
PartitionList[part].LBA_Start = lba_start;
PartitionList[part].SecCount = sec_count;
PartitionList[part].Bootable = bootable;
PartitionList[part].PartitionType = part_type;
PartitionList[part].PartitionNum = part_num;
PartitionList[part].EBR_Sector = EBR_Sector;
delete [] buffer;
}
bool SSoundEntity::IsActive()
{
// is everything required initialized and loaded?
return IsExisting() && pSound->IsInitialized() && pSound->IsLoaded();
}
