Address some analyzer findings

src/LibHac/Boot/Package1.cs

@@ -229,7 +229,7 @@ public class Package1
         }
 
         // If encrypted, check if the body can be decrypted
-        Crypto.Aes.DecryptCbc128(metaData2, metaData2, KeySet.MarikoBek, _metaData.Iv);
+        Aes.DecryptCbc128(metaData2, metaData2, KeySet.MarikoBek, _metaData.Iv);
         IsDecrypted = metaData2.SequenceEqual(SpanHelpers.AsByteSpan(ref _metaData));
 
         // Get a decrypted body storage if we have the correct key
@@ -344,7 +344,7 @@ public class Package1
 
         int start = IsModern ? 6 : 0;
         int end = IsModern ? 0x20 : 6;
-        Decryptor decryptor = IsModern ? Crypto.Aes.DecryptCbc128 : Crypto.Aes.DecryptCtr128;
+        Decryptor decryptor = IsModern ? Aes.DecryptCbc128 : Aes.DecryptCtr128;
 
         for (int i = start; i < end; i++)
         {

src/LibHac/Common/Utilities.cs

@@ -161,15 +161,15 @@ public static class Utilities
         return text;
     }
 
-    public static void WriteUTF8(this BinaryWriter writer, string value)
+    public static void WriteUtf8(this BinaryWriter writer, string value)
     {
         byte[] text = Encoding.UTF8.GetBytes(value);
         writer.Write(text);
     }
 
-    public static void WriteUTF8Z(this BinaryWriter writer, string value)
+    public static void WriteUtf8Z(this BinaryWriter writer, string value)
     {
-        writer.WriteUTF8(value);
+        writer.WriteUtf8(value);
         writer.Write((byte)0);
     }
 

src/LibHac/FsSrv/FileSystemServer.cs

@@ -26,7 +26,6 @@ public class FileSystemServer : IDisposable
     public void Dispose()
     {
         Globals.Dispose();
-        Globals = default;
     }
 }
 

src/LibHac/FsSrv/NcaFileSystemServiceImpl.cs

@@ -15,6 +15,7 @@ using LibHac.Tools.FsSystem.NcaUtils;
 using LibHac.Util;
 using static LibHac.Fs.Impl.CommonMountNames;
 using NcaFsHeader = LibHac.Tools.FsSystem.NcaUtils.NcaFsHeader;
+using NcaHeader = LibHac.FsSystem.NcaHeader;
 using RightsId = LibHac.Fs.RightsId;
 using Utility = LibHac.FsSystem.Utility;
 
@@ -698,7 +699,7 @@ public class NcaFileSystemServiceImpl
     {
         UnsafeHelpers.SkipParamInit(out fsType);
 
-        NcaContentType contentType = nca.Header.ContentType;
+        NcaHeader.ContentType contentType = (NcaHeader.ContentType)nca.Header.ContentType;
 
         switch (fsProxyType)
         {
@@ -706,31 +707,31 @@ public class NcaFileSystemServiceImpl
             case FileSystemProxyType.Rom:
             case FileSystemProxyType.Logo:
             case FileSystemProxyType.RegisteredUpdate:
-                if (contentType != NcaContentType.Program)
+                if (contentType != NcaHeader.ContentType.Program)
                     return ResultFs.PreconditionViolation.Log();
 
                 break;
 
             case FileSystemProxyType.Control:
-                if (contentType != NcaContentType.Control)
+                if (contentType != NcaHeader.ContentType.Control)
                     return ResultFs.PreconditionViolation.Log();
 
                 break;
             case FileSystemProxyType.Manual:
-                if (contentType != NcaContentType.Manual)
+                if (contentType != NcaHeader.ContentType.Manual)
                     return ResultFs.PreconditionViolation.Log();
 
                 break;
             case FileSystemProxyType.Meta:
-                if (contentType != NcaContentType.Meta)
+                if (contentType != NcaHeader.ContentType.Meta)
                     return ResultFs.PreconditionViolation.Log();
 
                 break;
             case FileSystemProxyType.Data:
-                if (contentType != NcaContentType.Data && contentType != NcaContentType.PublicData)
+                if (contentType != NcaHeader.ContentType.Data && contentType != NcaHeader.ContentType.PublicData)
                     return ResultFs.PreconditionViolation.Log();
 
-                if (contentType == NcaContentType.Data && !canMountSystemDataPrivate)
+                if (contentType == NcaHeader.ContentType.Data && !canMountSystemDataPrivate)
                     return ResultFs.PermissionDenied.Log();
 
                 break;

src/LibHac/FsSystem/Buffers/FileSystemBuddyHeap.cs

@@ -239,7 +239,7 @@ public unsafe class FileSystemBuddyHeap : IDisposable
 
         // Determine page sizes
         nuint maxPageSize = BlockSize << OrderMax;
-        nuint maxPageCount = (nuint)Alignment.AlignUp(HeapSize, (uint)maxPageSize) / maxPageSize;
+        nuint maxPageCount = Alignment.AlignUp(HeapSize, (uint)maxPageSize) / maxPageSize;
         Assert.SdkGreater(maxPageCount, nuint.Zero);
 
         // Setup the free lists

src/LibHac/FsSystem/NcaStructs.cs

@@ -1,47 +0,0 @@
-namespace LibHac.FsSystem;
-
-public enum NcaSectionType
-{
-    Code,
-    Data,
-    Logo
-}
-
-public enum NcaContentType
-{
-    Program,
-    Meta,
-    Control,
-    Manual,
-    Data,
-    PublicData
-}
-
-public enum DistributionType
-{
-    Download,
-    GameCard
-}
-
-public enum NcaEncryptionType
-{
-    Auto,
-    None,
-    XTS,
-    AesCtr,
-    AesCtrEx
-}
-
-public enum NcaHashType
-{
-    Auto,
-    None,
-    Sha256,
-    Ivfc
-}
-
-public enum NcaFormatType
-{
-    Romfs,
-    Pfs0
-}

src/LibHac/Tools/Es/Ticket.cs

@@ -126,7 +126,7 @@ public class Ticket
         }
 
         stream.Position = bodyStart;
-        if (Issuer != null) writer.WriteUTF8(Issuer);
+        if (Issuer != null) writer.WriteUtf8(Issuer);
         stream.Position = bodyStart + 0x40;
         if (TitleKeyBlock?.Length <= 0x100) writer.Write(TitleKeyBlock);
         stream.Position = bodyStart + 0x140;

src/LibHac/Tools/FsSystem/NcaUtils/Nca.cs

@@ -229,7 +229,7 @@ public class Nca
         {
             case NcaEncryptionType.None:
                 return baseStorage;
-            case NcaEncryptionType.XTS:
+            case NcaEncryptionType.AesXts:
                 return OpenAesXtsStorage(baseStorage, index, decrypting);
             case NcaEncryptionType.AesCtr:
                 return OpenAesCtrStorage(baseStorage, index, Header.GetSectionStartOffset(index), header.Counter);

src/LibHac/Tools/FsSystem/NcaUtils/NcaExtensions.cs

@@ -5,7 +5,6 @@ using LibHac.Common;
 using LibHac.Crypto;
 using LibHac.Fs;
 using LibHac.Fs.Fsa;
-using LibHac.FsSystem;
 
 namespace LibHac.Tools.FsSystem.NcaUtils;
 

src/LibHac/Tools/FsSystem/NcaUtils/NcaHeader.cs

@@ -7,7 +7,6 @@ using LibHac.Common.Keys;
 using LibHac.Crypto;
 using LibHac.Diag;
 using LibHac.Fs;
-using LibHac.FsSystem;
 using LibHac.Tools.Crypto;
 using LibHac.Util;
 

src/LibHac/Tools/FsSystem/NcaUtils/NcaStructs.cs

@@ -33,3 +33,49 @@ public class TitleVersion
         return $"{Major}.{Minor}.{Patch}.{Revision}";
     }
 }
+
+public enum NcaSectionType
+{
+    Code,
+    Data,
+    Logo
+}
+
+public enum NcaContentType
+{
+    Program,
+    Meta,
+    Control,
+    Manual,
+    Data,
+    PublicData
+}
+
+public enum DistributionType
+{
+    Download,
+    GameCard
+}
+
+public enum NcaEncryptionType
+{
+    Auto,
+    None,
+    AesXts,
+    AesCtr,
+    AesCtrEx
+}
+
+public enum NcaHashType
+{
+    Auto,
+    None,
+    Sha256,
+    Ivfc
+}
+
+public enum NcaFormatType
+{
+    Romfs,
+    Pfs0
+}

src/LibHac/Tools/FsSystem/PartitionFileSystemBuilder.cs

@@ -82,7 +82,7 @@ public class PartitionFileSystemBuilder
         byte[] metaData = new byte[metaDataSize];
         var writer = new BinaryWriter(new MemoryStream(metaData));
 
-        writer.WriteUTF8(GetMagicValue(type));
+        writer.WriteUtf8(GetMagicValue(type));
         writer.Write(Entries.Count);
         writer.Write(stringTableSize);
         writer.Write(0);
@@ -111,7 +111,7 @@ public class PartitionFileSystemBuilder
 
         foreach (Entry entry in Entries)
         {
-            writer.WriteUTF8Z(entry.Name);
+            writer.WriteUtf8Z(entry.Name);
         }
 
         return metaData;

src/LibHac/Tools/FsSystem/Save/SaveDataFileSystem.cs

@@ -264,7 +264,9 @@ public class SaveDataFileSystem : IFileSystem
         byte[] hashData = new byte[0x3d00];
 
         headerStream.Position = 0x300;
-        headerStream.Read(hashData, 0, hashData.Length);
+        int bytesRead = headerStream.Read(hashData, 0, hashData.Length);
+        if (bytesRead != hashData.Length)
+            return ResultFs.OutOfRange.Log();
 
         byte[] hash = new byte[Sha256.DigestSize];
         Sha256.GenerateSha256Hash(hashData, hash);
@@ -278,7 +280,9 @@ public class SaveDataFileSystem : IFileSystem
         byte[] cmac = new byte[0x10];
 
         headerStream.Position = 0x100;
-        headerStream.Read(cmacData, 0, 0x200);
+        bytesRead = headerStream.Read(cmacData, 0, cmacData.Length);
+        if (bytesRead != cmacData.Length)
+            return ResultFs.OutOfRange.Log();
 
         Aes.CalculateCmac(cmac, cmacData, keySet.DeviceUniqueSaveMacKeys[0]);
 

src/LibHac/Tools/FsSystem/StreamStorage.cs

@@ -29,7 +29,9 @@ public class StreamStorage : IStorage
                 BaseStream.Position = offset;
             }
 
-            BaseStream.Read(destination);
+            int bytesRead = BaseStream.Read(destination);
+            if (bytesRead != destination.Length)
+                return ResultFs.OutOfRange.Log();
         }
 
         return Result.Success;

src/hactoolnet/EnumStrings.cs

@@ -1,8 +1,8 @@
 using LibHac.Common;
 using LibHac.Fs;
-using LibHac.FsSystem;
 using LibHac.Ncm;
 using LibHac.Tools.Fs;
+using LibHac.Tools.FsSystem.NcaUtils;
 using ContentType = LibHac.Ncm.ContentType;
 
 namespace hactoolnet;

src/hactoolnet/ProcessAppFs.cs

@@ -2,7 +2,6 @@
 using LibHac.Common;
 using LibHac.Fs;
 using LibHac.Fs.Fsa;
-using LibHac.FsSystem;
 using LibHac.Ncm;
 using LibHac.Spl;
 using LibHac.Tools.Es;

src/hactoolnet/ProcessSwitchFs.cs

@@ -11,6 +11,7 @@ using LibHac.FsSystem;
 using LibHac.Ns;
 using LibHac.Tools.Fs;
 using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
 using LibHac.Tools.FsSystem.Save;
 using Path = System.IO.Path;