Initial commit - WPinternals 2.6

Models/QualcommLoader.cs

@@ -0,0 +1,109 @@
+// Copyright (c) 2018, Rene Lergner - wpinternals.net - @Heathcliff74xda
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+
+namespace WPinternals
+{
+    internal static class QualcommLoaders
+    {
+        internal static List<QualcommPartition> GetPossibleLoadersForRootKeyHash(string Path, byte[] RootKeyHash)
+        {
+            List<QualcommPartition> Result = new List<QualcommPartition>();
+
+            try
+            {
+                IEnumerable<string> FilePaths = Directory.EnumerateFiles(Path);
+                foreach (string FilePath in FilePaths)
+                {
+                    try
+                    {
+                        FileInfo Info = new FileInfo(FilePath);
+                        if (Info.Length <= 0x80000)
+                        {
+                            QualcommPartition Loader;
+
+#if DEBUG
+                            System.Diagnostics.Debug.Print("Evaluating loader: " + FilePath);
+#endif
+
+                            byte[] Binary = ParseAsHexFile(FilePath);
+                            if (Binary == null)
+                                Loader = new QualcommPartition(FilePath);
+                            else
+                                Loader = new QualcommPartition(Binary);
+
+                            if ((StructuralComparisons.StructuralEqualityComparer.Equals(Loader.RootKeyHash, RootKeyHash))
+                                && (ByteOperations.FindUnicode(Loader.Binary, "QHSUSB_ARMPRG") != null)) // To detect that this is a loader, and not SBL1 or something. V1 loaders are QHSUSB_ARMPRG. V2 loaders are QHSUSB__BULK. Only V1 supported for now, because V2 only accepts signed payload.
+                            {
+                                Result.Add(Loader);
+                            }
+                        }
+                    }
+                    catch { }
+                }
+            }
+            catch { }
+
+            return Result;
+        }
+
+        internal static byte[] ParseAsHexFile(string FilePath)
+        {
+            byte[] Result = null;
+
+            try
+            {
+                string[] Lines = File.ReadAllLines(FilePath);
+                byte[] Buffer = null;
+                int BufferSize = 0;
+
+                foreach (string Line in Lines)
+                {
+                    if (Line[0] != ':')
+                        throw new BadImageFormatException();
+
+                    byte[] LineBytes = Converter.ConvertStringToHex(Line.Substring(1));
+
+                    if ((LineBytes[0] + 5) != LineBytes.Length)
+                        throw new BadImageFormatException();
+
+                    if (Buffer == null)
+                        Buffer = new byte[0x40000];
+
+                    if (LineBytes[3] == 0) // This is mem data
+                    {
+                        System.Buffer.BlockCopy(LineBytes, 4, Buffer, BufferSize, LineBytes[0]);
+                        BufferSize += LineBytes[0];
+                    }
+                }
+
+                Result = new byte[BufferSize];
+                System.Buffer.BlockCopy(Buffer, 0, Result, 0, BufferSize);
+            }
+            catch { }
+
+            return Result;
+        }
+    }
+}