VirtualBox 7 Compatability Changes

- Created a PowerShell script `virtualbox-wrapper.ps1` to wrap calls to vboxmanage and only exit once the virtual machine has been terminated.
- Updated launch.json to use the PowerShell launch type to launch `virtualbox-wrapper.ps1` with the machine name supplied as an argument.
- Updated `readme.md` to reflect these changes.

# Conflicts:
#	.vscode/launch.json

.gitignore

@@ -10,5 +10,3 @@
 /*.sh~
 /*.img
 src/include/asuro.pas
-.vscode/launch.json
-.vscode

.gitlab-ci.yml

@@ -61,11 +61,13 @@ docgen:
   script:
     - ./compile_sourcelist.sh
     - ./compile_docs.sh
-    - ln -s doc public
+    # Remove comments when we want to use gitlab pages.
+    #- cp doc public
   allow_failure: true
   artifacts:
     paths:
-      - public
+      - doc
-      - ./sources.list
+      #- public/*
+      #- ./sources.list
   needs:
     - versions

.vscode/launch.json

@@ -3,18 +3,11 @@
         {
             "name":"Run",
             "request": "launch",
-            "type": "coreclr",
+            "type": "PowerShell",
             "preLaunchTask": "Build",
-            "program": "VBoxSDL",
+            "script": "${workspaceFolder}/virtualbox-wrapper.ps1",
-            "args": [
+            "args": ["-MachineName", "7d395c96-891c-4139-b77d-9b6b144b0b93"],
-                "--comment", 
-                "Asuro", 
-                "--startvm", 
-                "7d395c96-891c-4139-b77d-9b6b144b0b93"
-            ],
             "cwd": "${workspaceFolder}",
-            "console": "internalConsole",
-            "internalConsoleOptions": "neverOpen"
         }
     ]
 }

doc/flatfs.md

@@ -0,0 +1,32 @@
+#Flat filesystem
+
+A super simple filesystem for asuro. Folders are emulated in filenames.
+
+Starts with disk info sector, sector 0 of volume
+
+---
+#### disk info
+
+jmp2boot        : ubit24;
+OEMName         : array[0..7] of char;
+version         : uint16 // numerical version of filesystem
+sectorCount      : uint16;
+fileCount       : uint16
+signature       : uint32 = 0x0B00B1E5
+
+
+the Rest of the sector is reserved
+
+---
+
+Starting from sector 1 is the file table. Table size is determined by entry size (64) * fileCount
+
+---
+####File entry
+
+name : array[0..59] of char //file name max 60 chars
+fileStart : 16bit // start sector of data
+fileSize : 16bit // data size in sectors
+
+---
+

readme.md

@@ -13,8 +13,8 @@ We welcome everyone to give building/breaking/fixing/shooting Asuro a go, feel f
     I don't think this needs an explaination.
 * [VSCode (Optional, but highly recommended)](https://code.visualstudio.com/)
     Visual Studio code is our IDE of choice, and we have a number of recommended plugins.
-    * [C# Plugin by Microsoft](https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csharp)
+    * [PowerShell Plugin by Microsoft](https://marketplace.visualstudio.com/items?itemName=ms-vscode.powershell)
-        This plugin gives you the ability to use the 'coreclr' task type, allowing the automatic launching of virtualbox with the resulting image generated during compilation of Asuro.
+        This plugin gives you the ability to use the 'PowerShell' task type, allowing the automatic launching of virtualbox with the resulting image generated during compilation of Asuro.
 * [VirtualBox](https://www.virtualbox.org/)
     Virtualbox is our Virtualisation environment of choice, don't ask why, it just is.
 
@@ -27,15 +27,15 @@ We welcome everyone to give building/breaking/fixing/shooting Asuro a go, feel f
 3. Install Docker for Windows.
 4. Install Git for Windows.
 5. Install VSCode & the listed plugins.
-6. Install VirtualBox.
+6. Install VirtualBox (v7+).
 7. Clone this repository.
 8. Run the following command in the root of the repo to build the docker image:
     ```powershell
-    docker-compose build builder
+    docker compose build builder
     ```
 9. Run the following command to compile Asuro:
     ```powershell
-    docker-compose run builder
+    docker compose run builder
     ```
 10. Create a new virtual machine in Virtualbox and mount the `Asuro.iso` generated in step 9 as a boot image.
 11. Add the virtualbox installation directory to your `%PATH%` environment variable, usually:
@@ -57,18 +57,11 @@ We welcome everyone to give building/breaking/fixing/shooting Asuro a go, feel f
             {
                 "name":"Run",
                 "request": "launch",
-                "type": "coreclr",
+                "type": "PowerShell",
                 "preLaunchTask": "Build",
-                "program": "VBoxSDL",
+                "script": "${workspaceFolder}/virtualbox-wrapper.ps1",
-                "args": [
+                "args": ["-MachineName", "7d395c96-891c-4139-b77d-9b6b144b0b93"],
-                    "--comment", 
-                    "Asuro", 
-                    "--startvm", 
-                    "<YOUR UUID HERE>"
-                ],
                 "cwd": "${workspaceFolder}",
-                "console": "internalConsole",
-                "internalConsoleOptions": "neverOpen"
             }
         ]
     }
@@ -77,5 +70,6 @@ We welcome everyone to give building/breaking/fixing/shooting Asuro a go, feel f
 13. Open your project folder in VSCode, use CTRL+SHIFT+B to build & F5 to build + run in VBox.
 14. Congratulations! You can now play with Asuro!
 
-### Gotchas
+### Notes & Gotchas
+- The above process has been updated to be compatible with VirtualBox 7+, in which VBoxSDL was removed and vboxmanage should be used in its place. A small wrapper powershell script is used to achieve this.
 - It was noted that Windows builds above `20H2` seem to have issues installing WSL2. We may have to wait for a patch from Microsoft to fix this. Our devs are currently using build `20H2`.

src/driver/storage/IDE.pas

@@ -21,7 +21,9 @@ uses
     lmemorymanager,
     storagemanagement,
     strings,
-    tracer;
+    tracer,
+    drivemanager,
+    storagetypes;
 
 type 
     TPortMode = (P_READ, P_WRITE);
@@ -267,6 +269,7 @@ var
     slaveDevice : TStorage_Device;
     buffer : puint8;
     i : uint8;
+    test : PStorage_device;
 begin
     push_trace('ide.load');
     console.writestringln('[IDE] (LOAD) BEGIN');
@@ -288,14 +291,15 @@ begin
             exit;
         end;
 
-        masterDevice.hpc:= uint32(IDEDevices[0].info[3] DIV IDEDevices[0].info[1]);
+        // masterDevice.hpc:= uint32(IDEDevices[0].info[3] DIV IDEDevices[0].info[1]); //TODO wtf is hpc
 
         masterDevice.sectorSize:= 512;
         if masterDevice.maxSectorCount <> 0 then begin
             IDEDevices[0].exists:= true;
             masterDevice.readCallback:= @dread;
             masterDevice.writeCallback:= @dwrite;
-            storagemanagement.register_device(@masterDevice);
+            // storagemanagement.register_device(@masterDevice);
+            drivemanager.register_device(@masterDevice);
         end;
 
     end;
@@ -330,10 +334,14 @@ var
     device: uint8;
     data: uint16;
 begin 
+    push_trace('IDE.readPIO28');
+
     if not validate_28bit_address(LBA) then begin
         console.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
     end;
 
+    // push_trace('IDE.readPIO28.2');
+
     //Add last 4 bits of LBA to device port
     if IDEDevices[drive].isMaster then begin
         device:= ATA_DEVICE_MASTER;
@@ -344,6 +352,8 @@ begin
         device_select($F0 or ((LBA and $0F000000) shr 24)); //LBA primary slave
     end;
 
+    // push_trace('IDE.readPIO28.3');
+
     no_interrupt(device);
     port_write(ATA_REG_ERROR, 0);
 
@@ -353,6 +363,8 @@ begin
     port_write(ATA_REG_LBA1, (LBA and $0000FF00) shr 8);
     port_write(ATA_REG_LBA2, (LBA and $00FF0000) shr 16);
 
+    // push_trace('IDE.readPIO28.4');
+
     //send read command
     port_write(ATA_REG_COMMAND, ATA_CMD_READ_PIO); 
     if not is_ready() then exit;
@@ -368,6 +380,8 @@ begin
 
         i:= i + 2;
     end;
+
+        // push_trace('IDE.readPIO28.5');
 end;
 
 procedure writePIO28(drive : uint8; LBA : uint32; buffer : puint8);
@@ -430,8 +444,10 @@ procedure dread(device : PStorage_device; LBA : uint32; sectorCount : uint32; bu
 var
     i : uint16;
 begin
+    push_trace('IDE.dread');
     for i:=0 to sectorCount-1 do begin
-        readPIO28(device^.controllerId0, LBA, puint8(@buffer[512*i])); 
+        readPIO28(device^.controllerId0, LBA + i, puint8(@buffer[512*i])); 
+        psleep(100)
     end;
 end;
 
@@ -440,7 +456,8 @@ var
     i : uint16;
 begin
     for i:=0 to sectorCount-1 do begin
-        writePIO28(device^.controllerId0, LBA, puint8(@buffer[512*i]));
+        writePIO28(device^.controllerId0, LBA + i, puint8(@buffer[512*i]));
+        psleep(100)
     end;
     // writePIO28(device^.controllerId0, LBA, puint8(buffer));
 end;

src/driver/storage/MBR.pas

@@ -0,0 +1,81 @@
+{
+    Driver->Storage->MBR Master boot record 
+
+    @author(Aaron Hance ah@aaronhance.me)
+}
+unit mbr;
+
+interface
+
+uses
+    tracer;
+
+type
+
+    PMaster_Boot_Record = ^TMaster_Boot_Record;
+    PPartition_table = ^TPartition_table;
+
+    TPartition_table = bitpacked record 
+        attributes     : uint8;
+        CHS_start      : array[0..2] of uint8;
+        system_id      : uint8;
+        CHS_end        : array[0..2] of uint8;
+        LBA_start      : uInt32;
+        sector_count   : uInt32;
+    end;
+
+    TMaster_Boot_Record = bitpacked record 
+        bootstrap   : array[0..439] of uint8;
+        signature   : uint32;
+        rsv         : uint16;
+        partition   : array[0..3] of TPartition_table;
+        boot_sector : uint16;
+    end;
+
+    T24bit = array[0..2] of uint8;
+
+    function get_bootable(partition_table : PPartition_table) : boolean;
+    procedure set_bootable(partition_table : PPartition_table);
+    procedure setup_partition(partition_table : PPartition_table; address : uint32; sectorSize : uint32);
+
+implementation
+
+{ convert LBA address to CHS address}
+function LBA_2_CHS(lba : uint32) : T24bit;
+var
+    dat : T24bit;
+begin
+  //TODO impliment procedure
+  LBA_2_CHS := dat;
+end;
+
+{ Set a partition struct to be bootable}
+procedure set_bootable(partition_table : PPartition_table);
+begin
+    push_trace('MBR.set_bootable');
+    //set the bootble bit in attributes
+    partition_table^.attributes := (partition_table^.attributes and $80);
+end;
+
+{ Check a partitions bootable bit }
+function get_bootable(partition_table : PPartition_table) : boolean;
+begin
+    push_trace('MBR.get_bootable');
+    //get the bootble bit in attributes
+    get_bootable := (partition_table^.attributes and $80) = $80;
+end;
+
+{ Setup a partition table struct }
+procedure setup_partition(partition_table : PPartition_table; address : uint32; sectorSize : uint32);
+begin
+    push_trace('MBR.setup_partition');
+    //set values in both LBA and CHS addressing schemes
+    partition_table^.LBA_start := address;
+    partition_table^.sector_count := sectorSize;
+    partition_table^.CHS_start := LBA_2_CHS(address);
+    partition_table^.CHS_start := LBA_2_CHS(address + sectorSize);  
+    push_trace('MBR.setup_partition.end');
+end;
+
+
+end.

src/driver/storage/drivemanager.pas

@@ -0,0 +1,305 @@
+//  Copyright 2021 Aaron Hance
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+{
+    Driver->Storage->DriveManager Physical storage device manager
+
+    @author(Aaron Hance ah@aaronhance.me)
+}
+unit drivemanager;
+
+interface
+
+uses
+    util,
+    drivertypes,
+    console,
+    terminal,
+    drivermanagement,
+    lmemorymanager,
+    strings,
+    lists,
+    tracer,
+    rtc,
+    MBR,
+    serial,
+    volumemanager,
+    storagetypes;
+
+var 
+    storageDevices : PLinkedListBase; //index in this array is global drive id
+
+    procedure init();
+
+    procedure register_device(device : PStorage_Device);
+    function get_drive_list() : PLinkedListBase;
+    function controller_type_2_string(controllerType : TControllerType) : pchar; 
+
+implementation 
+
+procedure list_drive_command();
+var 
+    i : uint32 = 0;
+begin
+    push_trace('DriverManager.list_drive_command');
+    //if no storage device print none found
+    if LL_Size(storageDevices) < 1 then begin
+        console.writestringlnWnd('No storage devices found.', getTerminalHWND());
+        exit;
+    end;
+
+    //print number of storage devices
+    console.writeintwnd(LL_Size(storageDevices), getTerminalHWND());
+    console.writestringlnWnd(' devices found', getTerminalHWND());
+
+    for i:=0 to LL_Size(storageDevices)-1 do begin
+
+        //print device id and type
+        console.writeintwnd(i, getTerminalHWND());
+        console.writestringwnd(' - Device type: ', getTerminalHWND());
+        console.writestringwnd(controller_type_2_string(PStorage_Device(LL_Get(storageDevices, i))^.controller), getTerminalHWND());
+        console.writestringwnd(', ', getTerminalHWND());
+
+        //print device capcity
+        console.writestringwnd(' Capacity: ', getTerminalHWND());
+        console.writeintwnd((( PStorage_Device(LL_Get(storageDevices, i))^.maxSectorCount * PStorage_Device(LL_Get(storageDevices, i))^.sectorSize) DIV 1024) DIV 1024, getTerminalHWND());
+        console.writestringlnWnd('MB', getTerminalHWND());
+    end;
+
+end;
+
+{ Disk subcommand for formatting drives }
+procedure format_command(params : PParamList);
+var
+    driveIndex : uint16;
+    drive : PStorage_Device;
+
+    filesystemString : pchar;
+    spc : puint32;
+
+    sectorCount : uint32;
+    volumeId : uint8;
+
+    mb : PMaster_Boot_Record;
+    i : uint32 = 0;
+
+begin
+    push_trace('DriverManager.format_command');
+
+    //format <DRIVE_ID> <FILESYSTEM> <size>
+
+    spc:= puint32(kalloc(4));
+    spc^:= 1;
+
+    push_trace('DriverManager.format_command.0');
+
+    //get drive from index/id
+    driveIndex:= stringToInt( getParam(1, params) );
+    drive:= PStorage_Device(LL_Get(storageDevices, driveIndex));
+
+    filesystemString := getParam(2, params);
+    sectorCount := stringToInt( getParam(3, params) );
+
+    // if sector count is 0, use full drive
+    if sectorCount = 0 then begin
+        sectorCount := drive^.maxSectorCount - 10;
+    end;
+
+    //create MBR if none, and partition table
+    mb := PMaster_Boot_Record(kalloc(sizeof(TMaster_Boot_Record)*2));
+    memset(uint32(mb), 0, sizeof(TMaster_Boot_Record));
+    drive^.readCallback(drive, 0, 1, PuInt32(mb));
+
+    //check if MBR exists
+    if  (mb^.boot_sector <> $55AA)then begin
+
+        writestringlnWND('Creating MBR', getTerminalHWND());
+
+        //create MBR
+        mb^.signature := $A570 + drive^.id;
+        mb^.boot_sector := $55AA;
+        
+        //create partition table
+        mbr.setup_partition(@mb^.partition[0], 2, sectorCount);
+
+        //write MBR
+        drive^.writeCallback(drive, 0, 1, puint32(mb));
+        
+    end else begin
+
+        writestringlnWND('MBR already exists', getTerminalHWND());
+    
+        //write first partiton sectorStart and sectorCount
+        writeintlnWND(mb^.partition[0].LBA_start, getTerminalHWND());
+        writeintlnWND(mb^.partition[0].sector_count, getTerminalHWND());
+
+        //create partition table
+        mbr.setup_partition(@mb^.partition[0], 2, sectorCount);
+
+        //write MBR
+        drive^.writeCallback(drive, 0, 1, puint32(mb));
+
+    end;
+
+    kfree(puint32(mb));
+
+    //setup volume
+    volumemanager.create_volume(drive, filesystemString, 2, sectorCount);
+
+    writestringWnd('Drive ', getTerminalHWND);
+    writeintWnd(driveIndex, getTerminalHWND);
+    writestringlnWnd(' formatted.', getTerminalHWND);
+    
+end;
+
+{ initalise a drive with a MBR - TODO needs to be expanded for partitioning }
+procedure init_drive_command(driveIndex : uint32);
+var
+    bootrecord : PMaster_Boot_Record;
+    partition : PPartition_table;
+    drive : PStorage_device;
+begin
+    push_trace('DriverManager.init_drive_command');
+    //setup MBR and partition table
+    bootrecord := PMaster_Boot_record(kalloc(SizeOf(TMaster_boot_record)));
+    partition := PPartition_table(kalloc(SizeOf(TPartition_table)));
+
+    drive := PStorage_device(LL_Get(storageDevices, driveIndex));
+
+    MBR.setup_partition(partition, 100, drive^.maxSectorCount-300);
+    bootrecord^.partition[0] := partition^;
+
+    //write MBR and partition table to disk
+    drive^.writeCallback(drive, 0, 1, puint32(bootrecord));
+
+    //volume_manager reload partition
+    //TODO
+
+end;
+
+procedure drive_command(params : PParamList);
+var
+    i : uint16;
+    drive : uint16;
+    subcmd : pchar;
+begin
+    push_trace('DriverManager.drive_command');
+    subcmd:= getParam(0, params);
+    push_trace('DriverManager.drive_command.0');
+
+    if ((paramCount(params) = 0)) then begin
+        console.writestringlnWnd('Please provide valid arguments.', getTerminalHWND());
+        console.writestringlnWnd('  ls - for listing all drives', getTerminalHWND());
+        console.writestringlnWnd('  info [drive] - display formation for specified drive', getTerminalHWND());
+        console.writestringlnWnd('  init [drive] - destructive, formats a drive with a blank partition', getTerminalHWND());
+        console.writestringlnWnd('  format [drive] [filesystem] [size (0 for max)] - destructive, formats a drive with MBR and volume', getTerminalHWND());
+        exit;
+    end;
+    push_trace('DriverManager.drive_command.1');
+
+    if( stringEquals(subcmd, 'ls') ) then begin
+      list_drive_command();
+      exit;
+    end;
+    push_trace('DriverManager.drive_command.2');
+
+    if( stringEquals(subcmd, 'info') ) then begin
+        console.writestringWnd('Disk: ', getTerminalHWND());
+        console.writeintlnWND(1, getTerminalHWND());
+
+        console.writestringWnd('Capacity: ', getTerminalHWND());
+        console.writeintlnWND(1, getTerminalHWND());
+        //TODO impliment
+      exit;
+    end;
+
+    if( stringEquals(subcmd, 'init') ) then begin
+      init_drive_command(stringToInt(getParam(1, params) ) );
+      exit;
+    end;
+    push_trace('DriverManager.drive_command.3');
+
+    if( stringEquals(subcmd, 'format') ) then begin
+      format_command(params);
+      exit;
+    end;
+    push_trace('DriverManager.drive_command.4');
+
+end;
+
+{ Initialise the drive manager }
+procedure init();
+begin
+    push_trace('DriveManager.init');
+    
+    //setup drive manager
+    setworkingdirectory('.');
+    storageDevices:= ll_new(sizeof(TStorage_Device));
+
+    //register DISK command 
+    terminal.registerCommand('DISK', @drive_command, 'Disk utility');
+end;
+
+{ Register a new drive with the drive manager }
+procedure register_device(device : PStorage_device);
+var 
+    i   : uint8;
+    elm : void;
+begin
+    push_trace('DriveManager.register_device');
+
+    //add the drive to the list of storage devices.
+    elm:= LL_Add(storageDevices); 
+    //PStorage_device(elm)^ := device^; //TODO memcopy
+    memcpy(uint32(device), uint32(elm), SizeOf(TStorage_Device));
+
+    //set drive id in struct
+    PStorage_device(elm)^.id := LL_Size(storageDevices) - 1;
+
+    //create empty volume list for drive
+    PStorage_device(elm)^.volumes := LL_New(sizeof(TStorage_Volume));
+    
+    //TODO register with volume manager
+    volumemanager.check_for_volumes(PStorage_Device(elm));
+end;
+
+{ Get the drive list }
+function get_drive_list() : PLinkedListBase;
+begin
+    push_trace('DriverManager.get_drive_list');
+
+    //return the device list
+    get_drive_list:= storageDevices;
+end;
+
+{ Get string name for controller type }
+function controller_type_2_string(controllerType : TControllerType) : pchar; 
+begin
+    push_trace('DriverManager.controller_type_2_string');
+
+    //return string of controller type
+    case controllerType of
+        ControllerIDE : controller_type_2_string:= 'IDE';
+        ControllerUSB :  controller_type_2_string:= 'USB';
+        ControllerAHCI : controller_type_2_string:= 'ACHI (SATA)';
+        ControllerNET : controller_type_2_string:= 'Net';
+    end;
+end;
+
+function write_2_drive(drive : uint32; address : uint32; byteSize : uint32; buffer : puint32) : PDrive_Error;
+begin
+  
+end;
+
+end.

src/driver/storage/fat32.pas

@@ -10,14 +10,16 @@ interface
 
 uses
     console,
-    storagemanagement,
+    util,
-    util, terminal,
+    terminal,
     lmemorymanager,
     strings,
     lists,
     tracer,
     serial,
-    rtc;
+    rtc,
+    volumemanager,
+    storagetypes;
 
 type 
 
@@ -89,7 +91,7 @@ var
     filesystem : TFilesystem;
 
 procedure init;
-procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
+procedure create_volume(volume : PStorage_Volume; sectors : uint32; start : uint32; config : puint32);
 procedure detect_volumes(disk : PStorage_Device);
 //function writeDirectory(volume : PStorage_volume; directory : pchar; attributes : uint32) : uint8; // need to handle parent table cluster overflow, need to take attributes
 //function readDirectory(volume : PStorage_volume; directory : pchar; listPtr : PLinkedListBase) : uint8; //returns: 0 = success, 1 = dir not exsist, 2 = not directory, 3 = error
@@ -751,7 +753,7 @@ end;
 
 //TODO check directory commands for errors with a clean disk
 
-procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
+procedure create_volume(volume : PStorage_Volume; sectors : uint32; start : uint32; config : puint32);
 var
     buffer     : puint32;
     bt: puint32;
@@ -772,9 +774,18 @@ var
     programFileArray   : byteArray8 = ('P','R','O','G','R','A','M','S');
     rootCluster   : uint32 = 1;
 
+    sysArray : byteArray8 = ('S','Y','S','T','E','M',' ',' ');
+    progArray : byteArray8 = ('P','R','O','G','R','A','M','S');
+    userArray : byteArray8 = ('U','S','E','R',' ',' ',' ',' ');
+
+    status : puint32;
+    disk : PStorage_device;
+
 begin //maybe increase buffer size by one?
     push_trace('fat32.create_volume()');
 
+    disk := volume^.device;
+
     // zeroBuffer:= puint32(kalloc( disk^.sectorSize * 4 ));
     // memset(uint32(zeroBuffer), 0, disk^.sectorSize * 4);
 
@@ -811,7 +822,7 @@ begin //maybe increase buffer size by one?
     bootRecord^.jmp2boot        := $0; //TODO impliment boot jump
     bootRecord^.OEMName         := asuroArray;
     bootRecord^.sectorSize      := disk^.sectorsize;
-    bootRecord^.spc             := config^;
+    bootRecord^.spc             := 1;
     bootRecord^.rsvSectors      := 32; //32 is standard
     bootRecord^.numFats         := 1;
     bootRecord^.mediaDescp      := $F8;
@@ -873,8 +884,16 @@ begin //maybe increase buffer size by one?
     
     disk^.writecallback(disk, dataStart + (config^ * rootCluster), 1, buffer);
 
+    memset(uint32(buffer), 0, disk^.sectorsize);
+
+    status := puint32(kalloc(sizeof(uint32)));
+    writeDirectory(volume, '', sysArray, $10, status, '');
+
+
     kfree(buffer);
 
+
+
 end;
 
 procedure detect_volumes(disk : PStorage_Device);
@@ -903,11 +922,11 @@ begin
     if (puint32(buffer)[127] = $55AA) and (PBootRecord(buffer)^.bsignature = $29) then begin //TODO partition table
         console.writestringln('FAT32: volume found!');
         volume^.device:= disk;
-        volume^.sectorStart:= 1;
+        volume^.sectorStart:= 1; //THIS MAKE SURE IF NOT FUCKY, cos im getting info from 2
         volume^.sectorSize:= PBootRecord(buffer)^.sectorSize;
         volume^.freeSectors:= 1000000; //TODO implement get free sectors need FSINFO implemented first
         volume^.filesystem := @filesystem;
-        storagemanagement.register_volume(disk, volume);
+        // storagemanagement.register_volume(disk, volume); TODO repalce with new thing
     end;
 
     kfree(buffer);
@@ -917,6 +936,7 @@ procedure init();
 begin
     push_trace('fat32.init()');
     filesystem.sName:= 'FAT32'; 
+    filesystem.system_id:= $01; 
     filesystem.readDirCallback:= @readDirectoryGen;
     filesystem.createDirCallback:= @writeDirectoryGen;
     filesystem.createcallback:= @create_volume;
@@ -924,7 +944,7 @@ begin
     filesystem.writecallback:= @writeFile;
     filesystem.readcallback := @readFile;
 
-    storagemanagement.register_filesystem(@filesystem);
+    volumemanager.register_filesystem(@filesystem);
 end;
 
 end.

src/driver/storage/flatfs.pas

@@ -0,0 +1,725 @@
+//  Copyright 2021 Aaron Hance
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+{
+    Driver->Storage->flatfs super simple flat filesystem
+
+    @author(Aaron Hance ah@aaronhance.me)
+}
+
+unit flatfs;
+
+interface
+
+uses
+    tracer,
+    strings,
+    volumemanager,
+    lists,
+    console,
+    terminal,
+    storagetypes,
+    lmemorymanager,
+    util;
+
+type
+
+    TDisk_Info = bitpacked record
+        jmp2boot: ubit24;
+        OEMName: array[0..7] of char;
+        version: uint16;
+        sectorCount : uint16;
+        fileCount : uint16;
+        signature : uint32;
+    end;
+    PDisk_Info = ^TDisk_Info;
+
+    TFile_Entry = bitpacked record
+        attribues : uint8; // 0x00 = does not exsist, 0x01 = file, 0x02 = hidden, 0x04 = system/read only, 0x10 = directory, 0x20 = archive
+        name: array[0..53] of char; //max file name length is 54
+        rsv : uint8;
+        size: uint32;
+        start : uint32;
+    end;
+    PFile_Entry = ^TFile_Entry;
+
+var
+    filesystem : TFilesystem;
+
+
+procedure init;
+procedure create_volume(volume : PStorage_Volume; sectors : uint32; start : uint32; config : puint32);
+procedure detect_volumes(disk : PStorage_Device);
+function read_directory(volume : PStorage_Volume; directory : pchar; status : PuInt32) : PLinkedListBase;
+procedure write_directory(volume : PStorage_Volume; directory : pchar; status : PuInt32);
+procedure write_file(volume : PStorage_Volume; fileName : pchar; data : PuInt32; size : uint32; status : PuInt32);
+procedure read_file(volume : PStorage_Volume; fileName : pchar; data : PuInt32; status : PuInt32);
+
+implementation
+
+procedure create_volume(volume : PStorage_Volume; sectors : uint32; start : uint32; config : puint32);
+var
+    info : PDisk_Info;
+    entryTable : PFile_Entry;
+    i : uint32;
+
+    directories : PLinkedListBase;
+    status : PuInt32;
+
+    data : pchar;
+
+const
+    asuroArray : array[0..7] of char = 'ASURO';
+    systemArray : array[0..6] of char = '/system';
+    programsArray : array[0..8] of char = '/programs';
+    userArray : array[0..4] of char = '/user';
+
+    testArray : array[0..23] of char = 'ASURO TEST DATA ARRAY';
+begin
+
+    info := PDisk_Info(Kalloc(512));
+    memset(uint32(info), 0, 512);
+
+    info^.jmp2boot := $0;
+    info^.OEMName := asuroArray;
+    info^.version := 1;
+    info^.sectorCount := sectors;
+    info^.fileCount := 1000;
+    info^.signature := $0B00B1E5;
+
+    if config^ <> 0 then begin
+        info^.fileCount := config^;
+    end;
+
+    volume^.device^.writeCallback(volume^.device, start, 1, PuInt32(info));// what happens if buffer is smaller than 512?
+    
+    // create file table
+    entryTable := PFile_Entry(Kalloc(126 * 512));
+    memset(uint32(entryTable), 0, 126 * 512);
+
+    //create system folders
+    entryTable[0].attribues := $10;
+    memcpy(uint32(@systemArray), uint32(@entryTable[0].name), 7);
+    entryTable[0].size := 0;
+    entryTable[0].start := 0;
+
+    entryTable[1].attribues := $10;
+    memcpy(uint32(@programsArray), uint32(@entryTable[1].name), 9);
+    entryTable[1].size := 0;
+    entryTable[1].start := 0;
+
+    entryTable[2].attribues := $10;
+    memcpy(uint32(@userArray), uint32(@entryTable[2].name), 5);
+    entryTable[2].size := 0;
+    entryTable[2].start := 0;
+
+    //write file table
+    volume^.device^.writeCallback(volume^.device, start + 1, ((sizeof(TFile_Entry) * info^.fileCount) div 512), puint32(entryTable));
+    //volume^.device^.writeCallback(volume^.device, start + 1, 1, puint32(entryTable));
+
+    //temp read
+    status := PuInt32(Kalloc(sizeof(uint32)));
+    // directories := read_directory(volume, '/', status);
+
+    data := stringNew(1024);
+    memset(uint32(data), 0, 513);
+    memcpy(uint32(@testArray), uint32(data), 23);
+    
+    write_directory(volume, '/logs', status);
+    write_directory(volume, '/logs/test', status);
+    write_file(volume, '/logs/log.txt', PuInt32(data), 1, status);
+    write_file(volume, '/logs/log2.txt', PuInt32(data), 1, status);
+    write_file(volume, '/logs/log3.txt', PuInt32(data), 1, status);
+    read_directory(volume, '/logs', status);
+
+    kfree(puint32(data));
+
+    read_file(volume, '/logs/log.txt', PuInt32(data), status);
+    writestringlnWND(pchar(data), getterminalhwnd());
+end;
+
+procedure write_directory(volume : PStorage_Volume; directory : pchar; status : PuInt32);
+var
+    directories : PLinkedListBase;
+    i : uint32;
+
+    fileEntries : PFile_Entry;
+
+    fileEntry : PFile_Entry;
+    buffer : PuInt32;
+
+    position : uint32;
+    offset : uint32;
+
+const
+    fileCount : uint32 = 1000;
+begin
+    status^ := 0;
+
+    //directories := read_directory(volume, directory, status);
+
+    fileEntries := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntries), 0, sizeof(TFile_Entry) * fileCount + 512);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, (sizeof(TFile_Entry) * fileCount) div 512, PuInt32(fileEntries));
+
+    if status^ = 0 then begin
+        for i := 0 to fileCount - 1 do begin
+
+            push_trace('write_directory_2');
+
+            //fileEntry := PFile_Entry(STRLL_Get(directories, i));
+            fileEntry := @fileEntries[i];
+
+            if fileEntry^.attribues = 0 then begin
+                fileEntry^.attribues := $10;
+                fileEntry^.size := 0;
+                fileEntry^.start := 0;
+                memcpy(uint32(directory), uint32(@fileEntry^.name), stringSize(directory));
+
+                push_trace('write_directory_3');
+
+                //write file table
+                buffer := PuInt32(Kalloc(513));
+                memset(uint32(buffer), 0, 512);
+
+                push_trace('write_directory.b4_read');
+
+                //read file table cointaining entry of interest
+                position := (i * sizeof(TFile_Entry)) div 512;
+                volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1 + position, 1, buffer);
+
+                push_trace('write_directory.after_read');
+
+                //calculate entry offset into sector
+                offset := (i * sizeof(TFile_Entry)) mod 512;
+                offset := offset div sizeof(TFile_Entry);
+
+                //set entry in buffer
+                PFile_Entry(buffer)[offset] := fileEntry^;
+
+                //write updated file table sector
+                volume^.device^.writeCallback(volume^.device, volume^.sectorStart + 1 + position, 1, buffer);
+
+                Kfree(buffer);
+
+                push_trace('write_directory.after_write');
+
+                break;
+
+            end;
+        end;
+    end;
+
+    if fileEntry^.attribues = 0 then begin
+        status^ := 1;
+    end;
+
+end;
+
+function read_directory(volume : PStorage_Volume; directory : pchar; status : PuInt32) : PLinkedListBase;
+var
+    directories : PLinkedListBase;
+    fileEntrys : PFile_Entry;
+    i : uint32;
+
+    compString : PChar;
+    afterString : PChar;
+    slash : PChar;
+    compStringLength : uint32;
+
+    fileCount : uint32 = 1000;
+
+    slashArray : array[0..1] of char = '/';
+
+begin
+    compString := pchar(kalloc(60));
+    memset(uint32(compString), 0, 60);
+
+    afterString := pchar(kalloc(60));
+    memset(uint32(afterString), 0, 60);
+
+    slash := stringNew(2);
+    memcpy(uint32(@slashArray), uint32(slash), 1);
+
+    directories := STRLL_New();
+
+    fileEntrys := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntrys));
+
+    for i := 0 to fileCount - 1 do begin
+
+            if uint32(fileEntrys[i].name[0]) = 0 then begin
+                break;
+            end;
+
+            
+
+            compString := stringSub(fileEntrys[i].name, 0, stringSize(directory));
+            afterString := stringSub(fileEntrys[i].name, stringSize(directory), stringSize(fileEntrys[i].name)-1);
+
+            writestringlnWND(afterString, getterminalhwnd());
+
+            push_trace('read_directory_2');
+
+            if stringEquals(compString, directory) and 
+                (not stringContains(afterString, slash)) then begin
+
+                writestringlnWND(fileEntrys[i].name, getterminalhwnd());
+                STRLL_Add(directories, afterString);
+            end;
+    end;
+
+    push_trace('read_directory_3');
+
+    Kfree(puint32(fileEntrys));
+
+    read_directory := directories;
+end;
+
+procedure quicksort_start(list : PFile_Entry; begining : uint32; stop : uint32);
+var
+    pivot : uint32;
+    i : uint32;
+    j : uint32;
+    temp : PLinkedListBase;
+
+    tempFileEntry : PFile_Entry;
+begin
+
+    tempFileEntry := PFile_Entry(Kalloc(sizeof(TFile_Entry)));
+    memset(uint32(tempFileEntry), 0, sizeof(TFile_Entry));
+
+    i:=begining;
+    j:=stop;
+
+    pivot := list[(begining + stop) div 2].start;
+
+    while i <= j do begin
+        while list[i].start < pivot do begin
+            i := i + 1;
+        end;
+
+        while list[j].start > pivot do begin
+            j := j - 1;
+        end;
+
+        if i <= j then begin
+            tempFileEntry^ := list[i];
+            list[i] := list[j];
+            list[j] := tempFileEntry^;
+
+            i := i + 1;
+            j := j - 1;
+        end;
+    end;
+
+    if begining < j then begin
+        quicksort_start(list, begining, j);
+    end;
+
+    if i < stop then begin
+        quicksort_start(list, i, stop);
+    end;
+
+    Kfree(puint32(tempFileEntry));
+
+end;
+
+function find_free_space(volume : PStorage_Volume; size : uint32; status : PuInt32) : uint32;
+var
+    fileEntrys : PFile_Entry;
+    confirmedFileEntrys : PFile_Entry;
+    confirmedFileEntrysCount : uint32 = 0;
+    fileEntry : PFile_Entry;
+    i : uint32;
+    fileCount : uint32 = 1000;
+
+    baseAddress : uint32;
+begin
+    fileEntrys := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    confirmedFileEntrys := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntrys), 0, sizeof(TFile_Entry) * fileCount + 512);
+    memset(uint32(confirmedFileEntrys), 0, sizeof(TFile_Entry) * fileCount + 512);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntrys));
+
+    baseAddress := volume^.sectorStart + 2 + ( (fileCount * sizeof(TFile_Entry)) div 512);
+
+    for i := 0 to fileCount - 1 do begin
+        if fileEntrys[i].attribues <> 0 then begin
+            confirmedFileEntrys[confirmedFileEntrysCount] := fileEntrys[i];
+            confirmedFileEntrysCount := confirmedFileEntrysCount + 1;
+        end;
+    end;
+
+    //sort file table by start address using quicksort
+    quicksort_start(confirmedFileEntrys, 0, confirmedFileEntrysCount - 1);
+
+    //find free space big enough to fit size //TODO: make this work
+    for i := 0 to confirmedFileEntrysCount - 1 do begin
+
+        if confirmedFileEntrys[i+1].attribues = 0 then begin
+
+            if confirmedFileEntrys[i].size = 0 then begin
+                find_free_space := baseAddress;
+                break;
+            end else begin
+                find_free_space := confirmedFileEntrys[i].start + confirmedFileEntrys[i].size;
+                break;
+            end;
+
+            break;
+        end;
+
+        if confirmedFileEntrys[i].size <> 0 then begin
+            if confirmedFileEntrys[i+1].start - (confirmedFileEntrys[i].start + confirmedFileEntrys[i].size) > size+1 then begin
+                find_free_space := confirmedFileEntrys[i].start + confirmedFileEntrys[i].size;
+                status^ := 0;
+                break;
+            end;
+        end;
+    end;
+
+    Kfree(puint32(fileEntrys));
+    Kfree(puint32(confirmedFileEntrys));
+end;
+
+procedure write_file(volume : PStorage_Volume; fileName : pchar; data : PuInt32; size : uint32; status : PuInt32);
+var
+    directories : PLinkedListBase;
+    i : uint32;
+    p : uint32;
+
+    fileEntries : PFile_Entry;
+    fileEntry : PFile_Entry;
+    buffer : PuInt32;
+
+    position : uint32;
+    offset : uint32;
+
+    fileCount : uint32 = 1000;
+
+    exsists : boolean;
+
+    elm : puint32;
+begin
+    push_trace('flatfs.write_file');
+
+    //load file table
+    fileEntries := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntries), 0, sizeof(TFile_Entry) * fileCount);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntries));
+
+    //check if file exists else find free entry
+    for i := 0 to fileCount - 1 do begin
+
+        if stringEquals(fileEntries[i].name, fileName) then begin
+            exsists := true;
+            p:= i;
+            break;
+        end;
+
+        if fileEntries[i].attribues = 0 then begin
+            exsists := false;
+            p:= i;
+            break;
+        end;
+    end;
+
+    //if entry is directory then exit
+    if fileEntries[p].attribues and $10 = $10 then begin
+        status^ := 1;
+        exit;
+    end;
+
+    // //read file table cointaining entry of interest
+    position := (p * sizeof(TFile_Entry)) div 512;
+
+    //if file exists update entry else create new entry
+    if exsists then begin
+         //check if size is greater than current size
+        if size > fileEntries[p].size then begin
+            //find free space
+            fileEntries[p].start := find_free_space(volume, size, status);
+            fileEntries[p].size := size;
+        end else begin
+            //update size
+            fileEntries[p].size := size;
+        end;
+
+    end else begin
+        //find free space
+        fileEntries[p].start := find_free_space(volume, size, status);
+        fileEntries[p].size := size;
+        fileEntries[p].attribues := $01;
+
+        //add file name
+        memcpy(uint32(fileName), uint32(@fileEntries[p].name), 14);
+
+    end;
+
+    //write file table
+    volume^.device^.writeCallback(volume^.device, volume^.sectorStart + 1 , 1, puint32(@fileEntries[position]));
+
+    //write file
+    volume^.device^.writeCallback(volume^.device, fileEntries[p].start, size, data);
+   
+    //free buffer
+    Kfree(puint32(fileEntries));
+end;
+
+procedure read_file(volume : PStorage_Volume; fileName : pchar; data : PuInt32; status : PuInt32);
+var
+    directories : PLinkedListBase;
+    i : uint32;
+    p : uint32;
+
+    fileEntries : PFile_Entry;
+    fileEntry : PFile_Entry;
+
+    fileCount : uint32 = 1000;
+    exsists : boolean = false;
+
+    size : uint32;
+
+begin
+  
+    //load file table
+    fileEntries := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntries), 0, sizeof(TFile_Entry) * fileCount);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntries));
+
+    //check if file exists else exit
+    for i := 0 to fileCount - 1 do begin
+
+        if stringEquals(fileEntries[i].name, fileName) then begin
+            exsists := true;
+            p:= i;
+            break;
+        end;
+
+    end;
+
+    //if entry is directory then exit
+    if fileEntries[p].attribues and $10 = $10 then begin
+        status^ := 1;
+        exit;
+    end;
+
+    //if entry is not found exit
+    if fileEntries[i].attribues = 0 then begin
+        exsists := false;
+        p:= i;
+        exit;
+    end;
+
+    //file size rounded up to nearest 512
+    size := (fileEntries[p].size + 511) and -512;
+
+    //read file
+    data := Kalloc(size);
+    volume^.device^.readCallback(volume^.device, fileEntries[p].start, size, data);
+
+    //free buffer
+    Kfree(puint32(fileEntries));
+
+    status^ := 0;
+end;
+
+procedure detect_volumes(disk : PStorage_Device);
+var
+    buffer : puint32;
+    volume : PStorage_volume;
+begin
+    push_trace('flatfs.detectVolumes()');
+
+    volume:= PStorage_volume(kalloc(sizeof(TStorage_Volume)));
+    //check first address for MBR
+    //if found then add volume and use info to see if there is another volume
+    buffer := puint32(kalloc(512));
+    memset(uint32(buffer), 0, 512);
+    disk^.readcallback(disk, 2, 1, buffer);
+
+
+    if (PDisk_Info(buffer)^.signature = $0B00B1E5) then begin
+        console.writestringln('FlatFS: volume found!');
+        volume^.device:= disk;
+        volume^.sectorStart:= 2;
+        volume^.sectorSize:= 512;
+        volume^.sectorCount:= PDisk_Info(buffer)^.sectorCount;
+        volume^.freeSectors:= 1000000; //TODO implement get free sectors need FSINFO implemented first
+        volume^.filesystem := @filesystem;
+        volume^.isBootDrive := false;
+        
+        // storagemanagement.register_volume(disk, volume); TODO repalce with new thing
+        
+    end;
+
+    kfree(buffer);
+end;
+
+procedure delete_file(volume : PStorage_Volume; fileName : pchar; status : PuInt32);
+var
+    directories : PLinkedListBase;
+    i : uint32;
+    p : uint32;
+
+    fileEntries : PFile_Entry;
+    fileEntry : PFile_Entry;
+    zeroBuffer : PuInt32;
+
+    position : uint32;
+    offset : uint32;
+
+    fileCount : uint32 = 1000;
+
+    exsists : boolean;
+begin
+  
+    //load file table
+    fileEntries := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntries), 0, sizeof(TFile_Entry) * fileCount);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntries));
+
+    //check if file exists else exit
+    for i := 0 to fileCount - 1 do begin
+
+        if stringEquals(fileEntries[i].name, fileName) then begin
+            exsists := true;
+            p:= i;
+            break;
+        end;
+
+    end;
+
+    //set position of entry
+    position := (p * sizeof(TFile_Entry)) div 512;
+
+    //if entry is directory then exit
+    if fileEntries[p].attribues and $10 = $10 then begin
+        status^ := 1;
+        exit;
+    end;
+
+    //if entry is not found exit
+    if fileEntries[i].attribues = 0 then begin
+        exsists := false;
+        p:= i;
+        exit;
+    end;
+
+    //zero out file
+    zeroBuffer := Kalloc(fileEntries[p].size);
+    memset(uint32(zeroBuffer), 0, fileEntries[p].size);
+
+    //write file
+    volume^.device^.writeCallback(volume^.device, fileEntries[p].start, fileEntries[p].size, zeroBuffer);
+
+    //free buffer
+    Kfree(puint32(zeroBuffer));
+
+    //zero out file table
+    memset(uint32(@fileEntries[p]), 0, sizeof(TFile_Entry));
+    
+    //write file table
+    volume^.device^.writeCallback(volume^.device, volume^.sectorStart + 1 , 1, puint32(@fileEntries[position]));
+
+    //free buffer
+    Kfree(puint32(fileEntries));
+
+    status^ := 0;
+    
+end;
+
+procedure delete_directory(volume : PStorage_Volume; directoryName : pchar; status : PuInt32);
+var
+    directories : PLinkedListBase;
+    i : uint32;
+    p : uint32;
+
+    fileEntries : PFile_Entry;
+    fileEntry : PFile_Entry;
+    zeroBuffer : PuInt32;
+
+    position : uint32;
+    offset : uint32;
+
+    fileCount : uint32 = 1000;
+
+    exsists : boolean;
+begin
+
+    //load file table
+    fileEntries := PFile_Entry(Kalloc(sizeof(TFile_Entry) * fileCount + 512));
+    memset(uint32(fileEntries), 0, sizeof(TFile_Entry) * fileCount);
+
+    volume^.device^.readCallback(volume^.device, volume^.sectorStart + 1, sizeof(TFile_Entry) * fileCount div 512, puint32(fileEntries));
+
+    //check if file exists else exit
+
+    for i := 0 to fileCount - 1 do begin
+
+        if stringEquals(fileEntries[i].name, directoryName) then begin
+            exsists := true;
+            p:= i;
+            break;
+        end;
+
+    end;
+
+    //if entry is not directory then exit
+    if fileEntries[i].attribues and $10 <> $10 then begin
+        status^ := 1;
+        exit;
+    end;
+
+    //calculate position of directory in file table
+    position := (p * sizeof(TFile_Entry)) div 512;
+
+    //zero file table
+    memset(uint32(@fileEntries[p]), 0, sizeof(TFile_Entry));
+
+    //write file table
+    volume^.device^.writeCallback(volume^.device, volume^.sectorStart + 1 , 1, puint32(@fileEntries[position]));
+
+    //free buffer
+    Kfree(puint32(fileEntries));
+
+    status^ := 0;
+
+end;
+
+
+procedure init();
+begin
+    push_trace('flatfs.init()');
+    filesystem.sName:= 'flatfs'; 
+    filesystem.system_id:= $02; 
+    filesystem.readDirCallback:= @read_directory;
+    // filesystem.createDirCallback:= @writeDirectoryGen;
+    filesystem.createcallback:= @create_volume;
+    filesystem.detectcallback:= @detect_volumes;
+    // filesystem.writecallback:= @writeFile;
+    // filesystem.readcallback := @readFile;
+    // filesystem.formatVolumeCallback := @create_volume;
+
+    volumemanager.register_filesystem(@filesystem);
+end;
+
+    
+end.

src/driver/storage/storagemanagement.pas

@@ -15,6 +15,8 @@
 {
     Driver->Storage->StorageManagment Storage Managment System
 
+    DEPRECATED unit
+
     @author(Aaron Hance ah@aaronhance.me)
 }
 unit storagemanagement;
@@ -31,14 +33,14 @@ uses
     strings,
     lists,
     tracer,
-    rtc;
+    rtc,
+    MBR,
+    volumemanager,
+    storagetypes;
 
 type 
 
-    TControllerType = (ControllerIDE, ControllerUSB, ControllerAHCI, ControllerNET, ControllerRAM, rsvctr1, rsvctr2, rsvctr3);
     TDirectory_Entry_Type = (directoryEntry, fileEntry, mountEntry);
-    PStorage_volume = ^TStorage_Volume;
-    PStorage_device = ^TStorage_Device;
     APStorage_Volume = array[0..10] of PStorage_volume;
     byteArray8 = array[0..7] of char;
     PByteArray8 = ^byteArray8;
@@ -54,41 +56,6 @@ type
 
     PPHIOHook_ = procedure;
 
-    TFilesystem = record
-        sName : pchar;
-        writeCallback     : PPWriteHook;
-        readCallback      : PPReadHook;
-        createCallback    : PPCreateHook;
-        detectCallback    : PPDetectHook;
-        createDirCallback : PPCreateDirHook;
-        readDirCallback   : PPReadDirHook;
-    end;
-    PFileSystem = ^TFilesystem;
-
-    TStorage_Volume = record
-        device          : PStorage_device;
-        sectorStart     : uint32;
-        sectorSize      : uint32;
-        freeSectors     : uint32;
-        filesystem      : PFilesystem; 
-        { True if this drive contains the loaded OS }
-        isBootDrive     : boolean;
-    end;
-
-    { Generic storage device }
-    TStorage_Device = record
-        idx              : uint8;
-        controller       : TControllerType;
-        controllerId0    : uint32;
-        maxSectorCount   : uint32;
-        sectorSize       : uint32;
-        writable         : boolean;
-        volumes          : PLinkedListBase;
-        writeCallback    : PPHIOHook;
-        readCallback     : PPHIOHook;
-        hpc              : uint16;
-        spt              : uint16;
-    end;
     APStorage_Device = array[0..255] of PStorage_device;
 
     { Generic directory entry }
@@ -110,14 +77,6 @@ procedure init();
 procedure register_device(device : PStorage_Device);
 function get_device_list() : PLinkedListBase;
 
-procedure register_filesystem(filesystem : PFilesystem);
-
-procedure register_volume(device : PStorage_Device; volume : PStorage_Volume);
-//function writeNewFile(fileName : pchar; extension : pchar; buffer : puint32; size : uint32) : uint32;
-//function readFile(fileName : pchar; extension : pchar; buffer : puint32; byteCount : puint32) : puint32;
-
-//TODO write partition table
-
 implementation 
 
 function controller_type_2_string(controllerType : TControllerType) : pchar; 
@@ -169,18 +128,57 @@ var
     drive : PStorage_Device;
 
     filesystemString : pchar;
-    filesystem : PFileSystem;
     spc : puint32;
+
+    sectorCount : uint32;
+    volumeId : uint8;
+
+    mb : PMaster_Boot_Record;
+    i : uint32 = 0;
+
 begin
 
+    //format <DRIVE_ID> <FILESYSTEM> <size>
+
     spc:= puint32(kalloc(4));
-    spc^:= 4;
+    spc^:= 1;
 
     driveIndex:= stringToInt( getParam(1, params) );
     drive:= PStorage_Device(LL_Get(storageDevices, driveIndex));
 
-    //todo change b4 adding in aniother filesytem
+    filesystemString := getParam(2, params);
-    PFilesystem(LL_Get(filesystems, 0))^.createCallback(drive, drive^.maxSectorCount-1, 1, spc); 
+
+    sectorCount := stringToInt( getParam(4, params) );
+
+    // if sector count is 0, use full drive
+    if sectorCount = 0 then begin
+        sectorCount := drive^.maxSectorCount - 10;
+    end;
+
+    //create MBR if none, and partition table
+
+    mb := PMaster_Boot_Record(kalloc(sizeof(TMaster_Boot_Record)));
+    drive^.readCallback(drive, 0, 1, PuInt32(mb));
+
+    //check if MBR exists
+    if not mb^.boot_sector = $55AA then begin
+
+        //create MBR
+        mb^.signature := $A570 + drive^.id;
+        mb^.boot_sector := $55AA;
+        
+        //create partition table
+        mbr.setup_partition(@mb^.partition[0], 2, sectorCount);
+
+        //write MBR
+        drive^.writeCallback(drive, 0, 1, puint32(mb));
+        
+    end;
+
+    kfree(puint32(mb));
+
+    //setup volume
+    volumemanager.create_volume(drive, filesystemString, 2, sectorCount);
 
     writestringWnd('Drive ', getTerminalHWND);
     writeintWnd(driveIndex, getTerminalHWND);
@@ -217,10 +215,6 @@ begin
         format_command(params);
     end;
 
-    //lsfs command for listing filesystems
-    if stringEquals(subcmd, 'lsfs') then begin
-    end;
-
     pop_trace();
 end;
 
@@ -231,10 +225,8 @@ begin
     
     setworkingdirectory('.');
     storageDevices:= ll_new(sizeof(TStorage_Device));
-    fileSystems:= ll_New(sizeof(TFilesystem));
     terminal.registerCommand('DISK', @disk_command, 'Disk utility');
 
-    pop_trace();
 end; 
 
 { Register a new drive with the storage manager }
@@ -253,9 +245,7 @@ begin
     PStorage_Device(LL_Get(storageDevices, LL_Size(storageDevices) - 1))^.volumes := LL_New(sizeof(TStorage_Volume));
     
     //check for volumes
-    for i:=0 to ll_size(filesystems) - 1 do begin
+
-        PFileSystem(LL_Get(filesystems, i))^.detectCallback(PStorage_Device(LL_Get(storageDevices, LL_Size(storageDevices) - 1)));
-    end;
 
     pop_trace();
 end;
@@ -265,23 +255,4 @@ begin
     get_device_list:= storageDevices;
 end;
 
-procedure register_filesystem(filesystem : PFilesystem);
-var
-    elm : void;    
-begin
-    elm:= LL_Add(fileSystems);
-    PFileSystem(elm)^ := filesystem^;
-end;
-
-procedure register_volume(device : PStorage_Device; volume : PStorage_Volume);
-var
-    elm : void;
-begin
-    push_trace('storagemanagement.register_volume');
-    elm := LL_Add(device^.volumes);
-    PStorage_volume(elm)^:= volume^;
-
-    if rootVolume = PStorage_Volume(0) then rootVolume:= volume;
-end;
-
 end.

src/driver/storage/storagetypes.pas

@@ -0,0 +1,64 @@
+//  Copyright 2021 Aaron Hance
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+{ 
+	Driver->Storage->Include->storagetypes - Structs & Data Shared Across Storage Drivers.
+	
+	@author(Aaron Hance <ah@aaronhance.me>)
+}
+unit storagetypes;
+
+interface
+
+uses
+    lists;
+
+type
+
+    TControllerType = (ControllerIDE, ControllerUSB, ControllerAHCI, 
+        ControllerNET, ControllerRAM, rsvctr1, rsvctr2, rsvctr3);
+
+    PStorage_device = ^TStorage_Device;
+    PDrive_Error    = ^TDrive_Error;
+
+    PPHIOHook = procedure(drive : PStorage_device; addr : uint32; sectors : uint32; buffer : puint32);
+    PPHIOHook_ = procedure;
+
+    byteArray8 = array[0..7] of char;
+    PByteArray8 = ^byteArray8;
+
+    { Generic storage device }
+    TStorage_Device = record
+        id               : uint8;
+        controller       : TControllerType;
+        controllerId0    : uint32;
+        writable         : boolean;
+        volumes          : PLinkedListBase;
+        writeCallback    : PPHIOHook;
+        readCallback     : PPHIOHook;
+        maxSectorCount   : uint32;
+        sectorSize       : uint32;
+    end;
+
+    TDrive_Error = record 
+        code : uint16;
+        description : pchar;
+        recoverable : boolean;
+    end;
+
+
+implementation
+
+
+end.

src/driver/storage/volumemanager.pas

@@ -0,0 +1,429 @@
+//  Copyright 2021 Aaron Hance
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+{
+    Driver->Storage->VolumeManager Drive volume manager
+
+    @author(Aaron Hance ah@aaronhance.me)
+}
+unit volumemanager;
+
+interface
+
+uses
+    util, 
+    console,
+    terminal,
+    strings,
+    lists,
+    tracer,
+    lmemorymanager,
+    vfs,
+    MBR,
+    storagetypes;
+
+type
+    
+    TDirectory_Entry_Type = (directoryEntry, fileEntry, mountEntry);
+
+    PDirectory_Entry = ^TDirectory_Entry;
+    PFilesystem = ^TFilesystem;
+    PStorage_Volume = ^TStorage_Volume;
+
+    PPWriteHook = procedure(volume : PStorage_volume; directory : pchar; entry : PDirectory_Entry; byteCount : uint32; buffer : puint32; statusOut : puint32);
+    PPReadHook = function(volume : PStorage_Volume; directory : pchar; fileName : pchar; fileExtension : pchar; buffer : puint32; bytecount : puint32) : uint32;
+    PPHIOHook = procedure(volume : PStorage_device; addr : uint32; sectors : uint32; buffer : puint32);
+    PPCreateHook = procedure(volume : PStorage_volume; start : uint32; size : uint32; config : puint32);
+    PPDetectHook = procedure(disk : PStorage_Device);
+    PPCreateDirHook = procedure(volume : PStorage_volume; directory : pchar; dirname : pchar; attributes : uint32; status : puint32);
+    PPReadDirHook = function(volume : PStorage_volume; directory : pchar; status : puint32) : PLinkedListBase; //returns: 0 = success, 1 = dir not exsist, 2 = not directory, 3 = error //returns: 0 = success, 1 = dir not exsist, 2 = not directory, 3 = error
+
+    PPHIOHook_ = procedure;
+
+    TFilesystem = record
+        sName : pchar;
+        system_id : uint8;
+        writeCallback     : PPWriteHook;
+        readCallback      : PPReadHook;
+        createCallback    : PPCreateHook; //create volume
+        detectCallback    : PPDetectHook; //detect volume
+        createDirCallback : PPCreateDirHook;
+        readDirCallback   : PPReadDirHook;
+    end;
+
+    TStorage_Volume = record
+        volumeHandle    : uint32;
+        device          : PStorage_device;
+        sectorStart     : uint32;
+        sectorSize      : uint32;
+        sectorCount     : uint32;
+        freeSectors     : uint32;
+        filesystem      : PFilesystem; 
+        { True if this drive contains the loaded OS }
+        isBootDrive     : boolean;
+    end;
+
+    { Generic directory entry }
+    TDirectory_Entry = record
+        { Contains filename and optionally file extension, seperated by the last period.}
+        fileName  : pchar; 
+        entryType : TDirectory_Entry_Type;
+        // creationT : TDateTime;
+        // modifiedT : TDateTime;
+    end;
+
+    TFilehandleEntry = record
+        volume : PStorage_Volume;
+        fileName : pchar;
+        fileHandle : uint32;
+        openMode : TOpenMode;
+        writeMode : TWriteMode;
+        lock : Boolean;
+        closed : Boolean;
+
+    end;
+
+    PFilehandleEntry = ^TFilehandleEntry;
+  
+var
+
+    storageVolumes : PLinkedListBase;
+    filesystems : PlinkedListBase;
+
+    fileHandles : PLinkedListBase;
+
+    { Returns the number of volumes }
+
+    procedure init();
+    
+    procedure register_filesystem(filesystem : PFilesystem);
+    procedure check_for_volumes(drive : PStorage_device);
+    procedure create_volume(disk : PStorage_device; filesystem : PChar; sectorStart : uint32; sectorCount : uint32);
+
+    //IO functions
+
+implementation
+
+procedure format_volume_command(params : PParamList);
+var
+    volume : PStorage_Volume;
+    filesystem : PFilesystem;
+    config : puint32;
+begin
+    push_trace('VolumeManager.format_volume_command');
+    console.writestringlnWND('Not implimented, use disk format', getTerminalHWND());
+    exit;
+
+    if paramCount(params) < 3 then begin
+      console.writestringlnWND('Invalid arguments', getTerminalHWND());
+    end;
+        push_trace('VolumeManager.format_volume_command.1');
+
+    volume := PStorage_volume(LL_get(storageVolumes, stringToInt(getParam(1, params))));
+    filesystem := PFilesystem(LL_get(filesystems, stringToInt(getParam(2, params))));
+            push_trace('VolumeManager.format_volume_command.2');
+
+    config := PuInt32(kalloc(sizeof(uInt32)));
+    config^ := 4;
+        push_trace('VolumeManager.format_volume_command.3');
+
+    //TODO check things exsist
+
+    console.writestringlnWND('Staring volume formatting...', getTerminalHWND());
+    // filesystem^.formatVolumeCallback(volume^.device, volume^.sectorSize, volume^.sectorStart, config);
+    console.writestringlnWND('Volume format finished.', getTerminalHWND());
+end;
+
+procedure list_filesystems_command();
+var
+  i : uint32;
+  filesystem : PFilesystem;
+begin
+   push_trace('VolumeManager.list_filesystems_command');
+
+  if LL_Size(filesystems) < 1 then begin
+      console.writestringlnWnd('ERROR: no filesystems found!', getTerminalHWND());
+      exit;
+  end;
+
+  console.writestringlnWnd('Filesystems: ', getTerminalHWND());
+
+  for i:=0 to LL_Size(filesystems) - 1 do begin
+      filesystem := PFilesystem(LL_Get(filesystems, i));
+
+      console.writestringWnd('  ', getTerminalHWND());
+      console.writestringWnd(filesystem^.sName, getTerminalHWND());
+      console.writestringWnd(' - ', getTerminalHWND());
+      console.writehexlnWND(filesystem^.system_id, getTerminalHWND());
+  end;
+end;
+
+procedure list_volume_command();
+var 
+    i : uint32; 
+    volume : PStorage_Volume;
+begin
+  push_trace('VolumeManager.list_volume_command');
+
+  if LL_Size(storageVolumes) < 1 then begin
+      console.writestringlnWnd('No volumes found.', getTerminalHWND());
+      exit;
+  end;
+
+  console.writestringlnWnd('Volumes: ', getTerminalHWND());
+
+  for i:=0 to LL_Size(storageVolumes) - 1 do begin
+      volume := PStorage_Volume(LL_Get(storageVolumes, i));
+
+      console.writestringWnd('  ', getTerminalHWND());
+      console.writeintWnd(i, getTerminalHWND());
+      console.writestringWnd(' - Capacity: ', getTerminalHWND());
+      console.writeintWnd(uint32((volume^.sectorSize * volume^.sectorCount) DIV 1024 DIV 1024), getTerminalHWND());
+      console.writestringWnd('MB,  Filesystem: ', getTerminalHWND());
+
+      if volume^.filesystem <> nil then begin
+        console.writestringlnWnd(volume^.filesystem^.sName, getTerminalHWND());
+      end else begin
+        console.writestringlnWnd('None', getTerminalHWND());
+      end;
+
+  end;
+end;
+
+procedure volume_command(params : PParamList);
+var
+    i : uint16;
+    subcmd : pchar;
+begin
+    push_trace('VolumeManager.volume_command');
+    subcmd:= getParam(0, params);
+
+    if ((paramCount(params) = 0)) then begin
+        console.writestringlnWnd('Please provide valid arguments.', getTerminalHWND());
+        console.writestringlnWnd('  ls - for listing all volumes', getTerminalHWND());
+        console.writestringlnWnd('  lsfs - for listing all filesystems', getTerminalHWND());
+        console.writestringlnWnd('  info [volume] - display formation for specified volume', getTerminalHWND());
+        console.writestringlnWnd('  format [volume] [filesystem] - destructive, formats a volume with a specified filesystem', getTerminalHWND());
+        exit;
+    end;
+
+    if( stringEquals(subcmd, 'ls') ) then begin
+      list_volume_command();
+      exit;
+    end;
+
+    if( stringEquals(subcmd, 'lsfs') ) then begin
+      list_filesystems_command();
+      exit;
+    end;
+
+    if( stringEquals(subcmd, 'format') ) then begin
+      format_volume_command(params);
+      exit;
+    end;
+end;
+
+{ Initialise volume manager }
+procedure init();
+begin
+    push_trace('VolumeManager.init');
+
+    { setup lists }
+    storageVolumes:= ll_New(sizeof(TFilesystem));
+    filesystems:= ll_New(sizeof(TFilesystem));   
+    fileHandles:= ll_New(sizeof(TFilehandleEntry));
+
+    { register commands }
+
+    terminal.registerCommand('volume', @volume_command, 'Volume utility');   
+end;
+
+{ register a new type of filesystem }
+procedure register_filesystem(filesystem : PFilesystem); //TODO on init create null filesystem for empty partition
+var
+    elm : void;
+begin
+    //add filesystem
+    elm := LL_add(filesystems);
+    memcpy(uint32(filesystem), uInt32(elm), SizeOf(TFilesystem));
+
+    //check drives for volumes of new type
+end;
+
+{ Check for volumes on a physical device }
+procedure check_for_volumes(drive : PStorage_device);
+var 
+    bootrecord : PMaster_Boot_Record;
+    storageVolume : TStorage_Volume;
+    i : uint32 = 0;
+    elm : void;
+begin
+    push_trace('VolumeManager.check_for_volumes');
+
+    bootrecord := PMaster_Boot_Record(kalloc(SizeOf(TMaster_Boot_Record)));
+    drive^.readCallback(drive, 0, 1, puint32(bootrecord)); //TODO multiple drives
+
+    //TODO multipe partition entries
+    if bootrecord^.partition[0].LBA_start <> 0 then
+    begin
+      //set volume information
+      storageVolume.device := drive;
+      storageVolume.sectorStart := bootrecord^.partition[0].LBA_start;
+      storageVolume.sectorCount := bootrecord^.partition[0].sector_count;
+      storageVolume.sectorSize  := drive^.sectorSize; 
+      storageVolume.freeSectors := 0; //TODO impliment
+      storageVolume.filesystem := nil;
+
+      if LL_Size(filesystems) < 1 then begin
+        console.writestringln('Failed to initalise storage system, no filesystems found, stopping!');
+        exit;
+      end;
+
+      //check for filesystem type
+      for i:=0 to LL_Size(filesystems) - 1 do begin
+        if bootrecord^.partition[0].system_id = PFilesystem(LL_Get(filesystems, i))^.system_id then
+        begin
+          storageVolume.filesystem := PFilesystem(LL_Get(filesystems, i));
+        end;
+      end;
+    push_trace('VolumeManager.init3');
+
+      //add volume to list
+      elm := LL_Add(storageVolumes);
+      memcpy(uint32(@storageVolume), uint32(elm), SizeOf(TStorage_Volume));
+            push_trace('VolumeManager.init4');
+
+      elm := LL_Add(drive^.volumes);
+      memcpy(uint32(@storageVolume), uint32(elm), SizeOf(TStorage_Volume));
+
+    end;
+    
+end;
+
+procedure remove_volume(list : PLinkedListBase; volume : PStorage_Volume);
+var
+    i : uint32;
+    elm : void;
+begin
+
+    for i:=0 to LL_Size(list) - 1 do begin
+        elm := LL_Get(list, i);
+        if (PStorage_Volume(elm)^.device = volume^.device) 
+        and (PStorage_Volume(elm)^.sectorStart = volume^.sectorStart) then begin
+            LL_Delete(list, i);
+            break;
+        end;
+    end;
+end;
+
+procedure create_volume(disk : PStorage_device; filesystem : PChar; sectorStart : uint32; sectorCount : uint32);
+var
+    volume : PStorage_Volume;
+    elm : void;
+    i : uint16;
+    config : PuInt32;
+begin
+
+  push_trace('VolumeManager.create_volume');
+
+  volume := PStorage_Volume(kalloc(SizeOf(TStorage_Volume)));
+  volume^.device := disk;
+  volume^.sectorStart := sectorStart;
+  volume^.sectorCount := sectorCount - 10; 
+  volume^.sectorSize := disk^.sectorSize;
+  volume^.freeSectors := 0; //setup by filesystem
+
+  //find filesystem
+  for i:=0 to LL_Size(filesystems) - 1 do begin
+    if stringEquals(filesystem, PFilesystem(LL_Get(filesystems, i))^.sName) then begin
+      volume^.filesystem := PFilesystem(LL_Get(filesystems, i));
+    end;
+  end;
+
+  //TODO CHECK FILESYSTEM EXSISTS
+
+  //format volume
+  volume^.filesystem^.createCallback(volume, sectorCount, sectorStart, config);
+
+  push_trace('VolumeManager.create_volume.2');
+
+  //remove volume from list of volumes
+  remove_volume(storageVolumes, volume);
+
+  //add volume to list
+  elm := LL_Add(storageVolumes);
+  memcpy(uint32(volume), uint32(elm), SizeOf(TStorage_Volume));
+
+  push_trace('VolumeManager.create_volume.3');
+
+  //remove volume from list of volumes on device
+  remove_volume(disk^.volumes, volume);
+
+  //add volume to device
+  elm := LL_Add(disk^.volumes);
+  memcpy(uint32(volume), uint32(elm), SizeOf(TStorage_Volume));
+
+  //free memory
+  kfree(puint32(volume));
+end;
+
+procedure register_volume(device : PStorage_Device; volume : PStorage_Volume);
+var
+    elm : void;
+begin
+    push_trace('storagemanagement.register_volume');
+    elm := LL_Add(device^.volumes);
+    PStorage_volume(elm)^:= volume^;
+
+    // if rootVolume = PStorage_Volume(0) then rootVolume:= volume;
+end;
+
+procedure openFile(Handle : uint32; Filename : PChar; OpenMode : TOpenMode; WriteMode : TWriteMode; lock : boolean; Error : PError);
+var
+    fileHandleEntree : PFilehandleEntry;
+    fileHandle : uInt32;
+    i : uint32;
+    elm : void;
+begin
+    push_trace('VolumeManager.openFile');
+
+    //check if file is already open and if it is locked, if openmode is not read only
+    if OpenMode <> omReadOnly then begin
+        for i:=0 to LL_Size(fileHandles) - 1 do begin
+            elm := LL_Get(fileHandles, i);
+            if stringEquals(PFilehandleEntry(elm)^.filename, Filename) then begin
+                if PFilehandleEntry(elm)^.lock and (not PFilehandleEntry(elm)^.closed) then begin
+                    Error^ := eFileInUse;
+                    exit;
+                end;
+            end;
+        end;
+    end;
+
+    //create filehandleentry
+    fileHandleEntree := PFilehandleEntry(kalloc(SizeOf(TFilehandleEntry)));
+    fileHandleEntree^.fileName := Filename;
+    fileHandleEntree^.openMode := OpenMode;
+    fileHandleEntree^.writeMode := WriteMode;
+    fileHandleEntree^.lock := lock;
+    fileHandleEntree^.closed := false;
+
+    //create filehandle
+    fileHandle := LL_Size(fileHandles);
+
+
+end;
+
+
+end.

src/include/strings.pas

@@ -16,6 +16,7 @@
 	Include->Strings - String Manipulation.
 	
 	@author(Kieron Morris <kjm@kieronmorris.me>)
+    @author(Aaron Hance <ah@aaronhance.me>)
 }
 unit strings;
 
@@ -33,6 +34,10 @@ function stringCopy(str : pchar) : pchar;
 function stringNew(size : uint32) : pchar;
 function stringSize(str : pchar) : uint32;
 function stringConcat(str1, str2 : pchar) : pchar;
+function stringTrim(str : pchar; length : uint32) : pchar;
+function stringSub(str : pchar; start, size : uint32) : pchar;
+function stringReplace(str, find, replace : pchar) : pchar;
+function stringIndexOf(str, find : pchar) : sint32;
 function stringContains(str : pchar; sub : pchar) : boolean;
 function stringToInt(str : pchar) : uint32;
 function hexStringToInt(str : pchar) : uint32;
@@ -151,6 +156,94 @@ begin
     stringConcat:= result;
 end;
 
+// Trim the string to the specified length.
+function stringTrim(str : pchar; length : uInt32) : pchar;
+var
+    result : pchar;
+begin
+    result:= stringNew(length);
+    memcpy(uint32(str), uint32(result), length);
+    stringTrim:= result;
+end;
+
+// Return a substring of the string.
+function stringSub(str : pchar; start, size : uint32) : pchar;
+var
+    result : pchar;
+begin
+    result:= stringNew(size);
+    memcpy(uint32(str)+start, uint32(result), size);
+    stringSub:= result;
+end;
+
+// Replace first instance of a string with another.
+function stringReplace(str, find, replace : pchar) : pchar;
+var
+    result : pchar;
+    i, j, k : uint32;
+    found : boolean;
+begin
+
+    // Find the first instance of the find string.
+    i:= 0;
+    found:= false;
+    while (i < stringSize(str)) and (not found) do begin
+        if stringEquals(str+i, find) then begin
+            found:= true;
+        end else begin
+            inc(i);
+        end;
+    end;
+
+    // If we found the find string, replace it.
+    if found then begin
+        result:= stringNew(stringSize(str) - stringSize(find) + stringSize(replace));
+        j:= 0;
+        k:= 0;
+        while i < stringSize(str) do begin
+            if stringEquals(str+i, find) then begin
+                memcpy(uint32(replace), uint32(result+j), stringSize(replace));
+                j:= j + stringSize(replace);
+                inc(i, stringSize(find));
+            end else begin
+                result[j]:= str[i];
+                inc(j);
+                inc(i);
+            end;
+        end;
+        stringReplace:= result;
+    end else begin
+        stringReplace:= stringCopy(str);
+    end;
+
+    // Return the result.
+    stringReplace:= result;
+
+end;
+
+
+// Find the index of the first instance of a string.
+function stringIndexOf(str, find : pchar) : sint32;
+var 
+    i : uint32;
+    found : boolean;
+begin
+    i:= 0;
+    found:= false;
+    while (i < stringSize(str)) and (not found) do begin
+        if stringEquals(str+i, find) then begin
+            found:= true;
+        end else begin
+            inc(i);
+        end;
+    end;
+    if found then begin
+        stringIndexOf:= i;
+    end else begin
+        stringIndexOf:= -1;
+    end;
+end;
+
 function stringContains(str : pchar; sub : pchar) : boolean;
 var
     strEnd, subEnd, i, j, count : uint32;

src/kernel.pas

@@ -41,9 +41,12 @@ uses
      E1000,
      IDE,
      storagemanagement,
+     drivemanager,
+     volumemanager,
      lists,
      net,
      fat32,
+     flatfs,
      isrmanager,
      faults,
      fonts,
@@ -205,7 +208,9 @@ begin
      tracer.push_trace('kmain.DRVMGMT');
      drivermanagement.init();
      tracer.push_trace('kmain.STRMGMT');
-     storagemanagement.init();
+     //  storagemanagement.init();
+     drivemanager.init();
+     volumemanager.init();
 
      { Hook Timer for Ticks }
      tracer.push_trace('kmain.TMR');
@@ -214,6 +219,7 @@ begin
 
      { Filsystems }
      fat32.init();
+     flatfs.init();
 
      { Device Drivers }
      tracer.push_trace('kmain.DEVDRV');

virtualbox-wrapper.ps1

@@ -0,0 +1,16 @@
+param (
+  $MachineName
+)
+
+VBoxManage.exe startvm $MachineName
+
+$running=$true
+while($running) {
+  Start-Sleep -Seconds 1
+  $status=(VBoxManage.exe list runningvms)
+  if($status) {
+    $running=$status.contains($MachineName)
+  } else {
+    $running=$false
+  }
+}