Added preliminary support for Apple File System aka APFS.

2025-12-16 19:24:25 +00:00 · 2016-06-22 05:01:13 +01:00
parent dbf5093dd5
commit 3b2b3b86f5
4 changed files with 148 additions and 0 deletions
--- a/DiscImageChef.Filesystems/APFS.cs
+++ b/DiscImageChef.Filesystems/APFS.cs
@@ -0,0 +1,134 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : APFS.cs
+// Version        : 1.0
+// Author(s)      : Natalia Portillo
+//
+// Component      : Component
+//
+// Revision       : $Revision$
+// Last change by : $Author$
+// Date           : $Date$
+//
+// --[ Description ] ----------------------------------------------------------
+//
+// Description
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright (C) 2011-2015 Claunia.com
+// ****************************************************************************/
+// //$Id$
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+using DiscImageChef.Console;
+
+namespace DiscImageChef.Plugins
+{
+    class APFS : Plugin
+    {
+        const uint ApfsContainerMagic = 0x4253584E; // "NXSB"
+        const uint ApfsVolumeMagic = 0x42535041; // "APSB"
+
+        public APFS()
+        {
+            Name = "Apple File System";
+            PluginUUID = new Guid("A4060F9D-2909-42E2-9D95-DB31FA7EA797");
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct ApfsContainerSuperBlock
+        {
+            public UInt64 unknown1; // Varies between copies of the superblock
+            public UInt64 unknown2;
+            public UInt64 unknown3; // Varies by 1 between copies of the superblock
+            public UInt64 unknown4;
+            public UInt32 magic;
+            public UInt32 blockSize;
+            public UInt64 containerBlocks;
+        }
+
+        public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            if(partitionStart >= imagePlugin.GetSectors())
+                return false;
+
+            byte[] sector = imagePlugin.ReadSector(partitionStart);
+            ApfsContainerSuperBlock nxSb;
+
+            try
+            {
+                GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
+                nxSb = (ApfsContainerSuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(ApfsContainerSuperBlock));
+                handle.Free();
+            }
+            catch
+            {
+                return false;
+            }
+
+            if(nxSb.magic == ApfsContainerMagic)
+                return true;
+
+            return false;
+        }
+
+        public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
+        {
+            StringBuilder sbInformation = new StringBuilder();
+            xmlFSType = new Schemas.FileSystemType();
+            information = "";
+
+            if(partitionStart >= imagePlugin.GetSectors())
+                return;
+
+            byte[] sector = imagePlugin.ReadSector(partitionStart);
+            ApfsContainerSuperBlock nxSb;
+
+            try
+            {
+                GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
+                nxSb = (ApfsContainerSuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(ApfsContainerSuperBlock));
+                handle.Free();
+            }
+            catch
+            {
+                return;
+            }
+
+            if(nxSb.magic != ApfsContainerMagic)
+                return;
+
+            sbInformation.AppendLine("Apple File System");
+            sbInformation.AppendLine();
+            sbInformation.AppendFormat("{0} bytes per block", nxSb.blockSize).AppendLine();
+            sbInformation.AppendFormat("Container has {0} bytes in {1} blocks", nxSb.containerBlocks * nxSb.blockSize, nxSb.containerBlocks).AppendLine();
+
+            information = sbInformation.ToString();
+
+            xmlFSType = new Schemas.FileSystemType();
+            xmlFSType.Bootable = false;
+            xmlFSType.Clusters = (long)nxSb.containerBlocks;
+            xmlFSType.ClusterSize = (int)nxSb.blockSize;
+            xmlFSType.Type = "Apple File System";
+        }
+    }
+}
+