X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FModules%2FFilesystems%2FNTFS%2Fmain.c;fp=KernelLand%2FModules%2FFilesystems%2FNTFS%2Fmain.c;h=dbda06e1e7b184d399c1b2370efdc7941e4e2dd7;hb=48743e39650eb1ef988380e9d95f27fd40d3a9ce;hp=0000000000000000000000000000000000000000;hpb=a2495c6ea4f4cab16b5d339ae511428e92e89e73;p=tpg%2Facess2.git

diff --git a/KernelLand/Modules/Filesystems/NTFS/main.c b/KernelLand/Modules/Filesystems/NTFS/main.c
new file mode 100644
index 00000000..dbda06e1
--- /dev/null
+++ b/KernelLand/Modules/Filesystems/NTFS/main.c
@@ -0,0 +1,196 @@
+/*
+ * Acess2 - NTFS Driver
+ * By John Hodge (thePowersGang)
+ *
+ * main.c - Driver core
+ */
+#define DEBUG	1
+#define VERBOSE	0
+#include <acess.h>
+#include <vfs.h>
+#include "common.h"
+#include <modules.h>
+
+// === IMPORTS ===
+extern char	*NTFS_ReadDir(tVFS_Node *Node, int Pos);
+extern tVFS_Node	*NTFS_FindDir(tVFS_Node *Node, const char *Name);
+
+// === PROTOTYPES ===
+ int	NTFS_Install(char **Arguments);
+tVFS_Node	*NTFS_InitDevice(const char *Devices, const char **Options);
+void	NTFS_Unmount(tVFS_Node *Node);
+void	NTFS_DumpEntry(tNTFS_Disk *Disk, Uint32 Entry);
+
+// === GLOBALS ===
+MODULE_DEFINE(0, 0x0A /*v0.1*/, FS_NTFS, NTFS_Install, NULL);
+tVFS_Driver	gNTFS_FSInfo = {"ntfs", 0, NTFS_InitDevice, NTFS_Unmount, NULL};
+tVFS_NodeType	gNTFS_DirType = {
+	.TypeName = "NTFS-File",
+	.ReadDir = NTFS_ReadDir,
+	.FindDir = NTFS_FindDir,
+	.Close = NULL
+	};
+
+tNTFS_Disk	gNTFS_Disks;
+
+// === CODE ===
+/**
+ * \brief Installs the NTFS driver
+ */
+int NTFS_Install(char **Arguments)
+{
+	VFS_AddDriver( &gNTFS_FSInfo );
+	return 0;
+}
+
+/**
+ * \brief Mount a NTFS volume
+ */
+tVFS_Node *NTFS_InitDevice(const char *Device, const char **Options)
+{
+	tNTFS_Disk	*disk;
+	tNTFS_BootSector	bs;
+	
+	disk = malloc( sizeof(tNTFS_Disk) );
+	
+	disk->FD = VFS_Open(Device, VFS_OPENFLAG_READ);
+	if(!disk->FD) {
+		free(disk);
+		return NULL;
+	}
+	
+	Log_Debug("FS_NTFS", "&bs = %p", &bs);
+	VFS_ReadAt(disk->FD, 0, 512, &bs);
+	
+	Log_Debug("FS_NTFS", "Jump = %02x%02x%02x",
+		bs.Jump[0],
+		bs.Jump[1],
+		bs.Jump[2]);
+	Log_Debug("FS_NTFS", "SystemID = %02x%02x%02x%02x%02x%02x%02x%02x (%8C)",
+		bs.SystemID[0], bs.SystemID[1], bs.SystemID[2], bs.SystemID[3],
+		bs.SystemID[4], bs.SystemID[5], bs.SystemID[6], bs.SystemID[7],
+		bs.SystemID
+		);
+	Log_Debug("FS_NTFS", "BytesPerSector = %i", bs.BytesPerSector);
+	Log_Debug("FS_NTFS", "SectorsPerCluster = %i", bs.SectorsPerCluster);
+	Log_Debug("FS_NTFS", "MediaDescriptor = 0x%x", bs.MediaDescriptor);
+	Log_Debug("FS_NTFS", "SectorsPerTrack = %i", bs.SectorsPerTrack);
+	Log_Debug("FS_NTFS", "Heads = %i", bs.Heads);
+	Log_Debug("FS_NTFS", "TotalSectorCount = 0x%llx", bs.TotalSectorCount);
+	Log_Debug("FS_NTFS", "MFTStart = 0x%llx", bs.MFTStart);
+	Log_Debug("FS_NTFS", "MFTMirrorStart = 0x%llx", bs.MFTMirrorStart);
+	Log_Debug("FS_NTFS", "ClustersPerMFTRecord = %i", bs.ClustersPerMFTRecord);
+	Log_Debug("FS_NTFS", "ClustersPerIndexRecord = %i", bs.ClustersPerIndexRecord);
+	Log_Debug("FS_NTFS", "SerialNumber = 0x%llx", bs.SerialNumber);
+	
+	disk->ClusterSize = bs.BytesPerSector * bs.SectorsPerCluster;
+	Log_Debug("NTFS", "Cluster Size = %i KiB", disk->ClusterSize/1024);
+	disk->MFTBase = bs.MFTStart;
+	Log_Debug("NTFS", "MFT Base = %i", disk->MFTBase);
+	Log_Debug("NTFS", "TotalSectorCount = 0x%x", bs.TotalSectorCount);
+	
+	if( bs.ClustersPerMFTRecord < 0 ) {
+		disk->MFTRecSize = 1 << (-bs.ClustersPerMFTRecord);
+	}
+	else {
+		disk->MFTRecSize = bs.ClustersPerMFTRecord * disk->ClusterSize;
+	}
+	
+	disk->RootNode.Inode = 5;	// MFT Ent #5 is filesystem root
+	disk->RootNode.ImplPtr = disk;
+	
+	disk->RootNode.UID = 0;
+	disk->RootNode.GID = 0;
+	
+	disk->RootNode.NumACLs = 1;
+	disk->RootNode.ACLs = &gVFS_ACL_EveryoneRX;
+	
+	disk->RootNode.Type = &gNTFS_DirType;
+
+	
+	NTFS_DumpEntry(disk, 5);
+	
+	return &disk->RootNode;
+}
+
+/**
+ * \brief Unmount an NTFS Disk
+ */
+void NTFS_Unmount(tVFS_Node *Node)
+{
+	
+}
+
+/**
+ * \brief Dumps a MFT Entry
+ */
+void NTFS_DumpEntry(tNTFS_Disk *Disk, Uint32 Entry)
+{
+	void	*buf = malloc( Disk->MFTRecSize );
+	tNTFS_FILE_Header	*hdr = buf;
+	tNTFS_FILE_Attrib	*attr;
+	 int	i;
+	
+	if(!buf) {
+		Log_Warning("FS_NTFS", "malloc() fail!");
+		return ;
+	}
+	
+	VFS_ReadAt( Disk->FD,
+		Disk->MFTBase * Disk->ClusterSize + Entry * Disk->MFTRecSize,
+		Disk->MFTRecSize,
+		buf);
+	
+	Log_Debug("FS_NTFS", "MFT Entry #%i", Entry);
+	Log_Debug("FS_NTFS", "- Magic = 0x%08x (%4C)", hdr->Magic, &hdr->Magic);
+	Log_Debug("FS_NTFS", "- UpdateSequenceOfs = 0x%x", hdr->UpdateSequenceOfs);
+	Log_Debug("FS_NTFS", "- UpdateSequenceSize = 0x%x", hdr->UpdateSequenceSize);
+	Log_Debug("FS_NTFS", "- LSN = 0x%x", hdr->LSN);
+	Log_Debug("FS_NTFS", "- SequenceNumber = %i", hdr->SequenceNumber);
+	Log_Debug("FS_NTFS", "- HardLinkCount = %i", hdr->HardLinkCount);
+	Log_Debug("FS_NTFS", "- FirstAttribOfs = 0x%x", hdr->FirstAttribOfs);
+	Log_Debug("FS_NTFS", "- Flags = 0x%x", hdr->Flags);
+	Log_Debug("FS_NTFS", "- RecordSize = 0x%x", hdr->RecordSize);
+	Log_Debug("FS_NTFS", "- RecordSpace = 0x%x", hdr->RecordSpace);
+	Log_Debug("FS_NTFS", "- Reference = 0x%llx", hdr->Reference);
+	Log_Debug("FS_NTFS", "- NextAttribID = 0x%04x", hdr->NextAttribID);
+	
+	attr = (void*)( (char*)hdr + hdr->FirstAttribOfs );
+	i = 0;
+	while( (tVAddr)attr < (tVAddr)hdr + hdr->RecordSize )
+	{
+		if(attr->Type == 0xFFFFFFFF)	break;
+		Log_Debug("FS_NTFS", "- Attribute %i", i ++);
+		Log_Debug("FS_NTFS", " > Type = 0x%x", attr->Type);
+		Log_Debug("FS_NTFS", " > Size = 0x%x", attr->Size);
+		Log_Debug("FS_NTFS", " > ResidentFlag = 0x%x", attr->ResidentFlag);
+		Log_Debug("FS_NTFS", " > NameLength = %i", attr->NameLength);
+		Log_Debug("FS_NTFS", " > NameOffset = 0x%x", attr->NameOffset);
+		Log_Debug("FS_NTFS", " > Flags = 0x%x", attr->Flags);
+		Log_Debug("FS_NTFS", " > AttributeID = 0x%x", attr->AttributeID);
+		if( !attr->ResidentFlag ) {
+			Log_Debug("FS_NTFS", " > AttribLen = 0x%x", attr->Resident.AttribLen);
+			Log_Debug("FS_NTFS", " > AttribOfs = 0x%x", attr->Resident.AttribOfs);
+			Log_Debug("FS_NTFS", " > IndexedFlag = 0x%x", attr->Resident.IndexedFlag);
+			Log_Debug("FS_NTFS", " > Name = '%*C'", attr->NameLength, attr->Resident.Name);
+			Debug_HexDump("FS_NTFS",
+				(void*)( (tVAddr)attr + attr->Resident.AttribOfs ),
+				attr->Resident.AttribLen
+				);
+		}
+		else {
+			Log_Debug("FS_NTFS", " > StartingVCN = 0x%llx", attr->NonResident.StartingVCN);
+			Log_Debug("FS_NTFS", " > LastVCN = 0x%llx", attr->NonResident.LastVCN);
+			Log_Debug("FS_NTFS", " > DataRunOfs = 0x%x", attr->NonResident.DataRunOfs);
+			Log_Debug("FS_NTFS", " > CompressionUnitSize = 0x%x", attr->NonResident.CompressionUnitSize);
+			Log_Debug("FS_NTFS", " > AllocatedSize = 0x%llx", attr->NonResident.AllocatedSize);
+			Log_Debug("FS_NTFS", " > RealSize = 0x%llx", attr->NonResident.RealSize);
+			Log_Debug("FS_NTFS", " > InitiatedSize = 0x%llx", attr->NonResident.InitiatedSize);
+			Log_Debug("FS_NTFS", " > Name = '%*C'", attr->NameLength, attr->NonResident.Name);
+		}
+		
+		attr = (void*)( (tVAddr)attr + attr->Size );
+	}
+	
+	free(buf);
+}