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Implement Qualcomm Sahara VIP and fix a few bugs

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* Qualcomm Sahara VIP
* Project Cleanup
* Allow unlocking an already unlocked phone
This commit is contained in:
Gustave Monce
2021-08-11 14:33:49 +02:00
parent 9f4c92f437
commit c5fcb1ec8d
72 changed files with 987 additions and 861 deletions
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DiscUtils/DiscUtils.Fat/Modified/Directory.cs
+37 -43
View File
@@ -43,8 +43,8 @@ namespace DiscUtils.Fat
private DirectoryEntry _parentEntry;
private long _parentEntryLocation;
internal Dictionary<string, string> LongFileNames_ShortKey = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
internal Dictionary<string, string> LongFileNames_LongKey = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
internal Dictionary<string, string> LongFileNames_ShortKey = new(StringComparer.OrdinalIgnoreCase);
internal Dictionary<string, string> LongFileNames_LongKey = new(StringComparer.OrdinalIgnoreCase);
/// <summary>
/// Initializes a new instance of the Directory class. Use this constructor to represent non-root directories.
@@ -81,22 +81,22 @@ namespace DiscUtils.Fat
// see http://home.teleport.com/~brainy/lfn.htm
// NOTE: we assume ordinals are ok here.
char[] chars = new char[13];
chars[0] = (char)(256 * buffer[2] + buffer[1]);
chars[1] = (char)(256 * buffer[4] + buffer[3]);
chars[2] = (char)(256 * buffer[6] + buffer[5]);
chars[3] = (char)(256 * buffer[8] + buffer[7]);
chars[4] = (char)(256 * buffer[10] + buffer[9]);
chars[0] = (char)((256 * buffer[2]) + buffer[1]);
chars[1] = (char)((256 * buffer[4]) + buffer[3]);
chars[2] = (char)((256 * buffer[6]) + buffer[5]);
chars[3] = (char)((256 * buffer[8]) + buffer[7]);
chars[4] = (char)((256 * buffer[10]) + buffer[9]);
chars[5] = (char)(256 * buffer[15] + buffer[14]);
chars[6] = (char)(256 * buffer[17] + buffer[16]);
chars[7] = (char)(256 * buffer[19] + buffer[18]);
chars[8] = (char)(256 * buffer[21] + buffer[20]);
chars[9] = (char)(256 * buffer[23] + buffer[22]);
chars[10] = (char)(256 * buffer[25] + buffer[24]);
chars[5] = (char)((256 * buffer[15]) + buffer[14]);
chars[6] = (char)((256 * buffer[17]) + buffer[16]);
chars[7] = (char)((256 * buffer[19]) + buffer[18]);
chars[8] = (char)((256 * buffer[21]) + buffer[20]);
chars[9] = (char)((256 * buffer[23]) + buffer[22]);
chars[10] = (char)((256 * buffer[25]) + buffer[24]);
chars[11] = (char)(256 * buffer[29] + buffer[28]);
chars[12] = (char)(256 * buffer[31] + buffer[30]);
string chunk = new string(chars);
chars[11] = (char)((256 * buffer[29]) + buffer[28]);
chars[12] = (char)((256 * buffer[31]) + buffer[30]);
string chunk = new(chars);
int zero = chunk.IndexOf('\0');
return zero >= 0 ? chunk.Substring(0, zero) : chunk;
}
@@ -133,10 +133,7 @@ namespace DiscUtils.Fat
set
{
if (_parent != null)
{
_parent.UpdateEntry(_parentId, value);
}
_parent?.UpdateEntry(_parentId, value);
}
}
@@ -195,7 +192,7 @@ namespace DiscUtils.Fat
public DirectoryEntry[] GetDirectories()
{
List<DirectoryEntry> dirs = new List<DirectoryEntry>(_entries.Count);
List<DirectoryEntry> dirs = new(_entries.Count);
foreach (DirectoryEntry dirEntry in _entries.Values)
{
if ((dirEntry.Attributes & FatAttributes.Directory) != 0)
@@ -209,7 +206,7 @@ namespace DiscUtils.Fat
public DirectoryEntry[] GetFiles()
{
List<DirectoryEntry> files = new List<DirectoryEntry>(_entries.Count);
List<DirectoryEntry> files = new(_entries.Count);
foreach (DirectoryEntry dirEntry in _entries.Values)
{
if ((dirEntry.Attributes & (FatAttributes.Directory | FatAttributes.VolumeId)) == 0)
@@ -261,15 +258,14 @@ namespace DiscUtils.Fat
{
try
{
uint firstCluster;
if (!_fileSystem.Fat.TryGetFreeCluster(out firstCluster))
if (!_fileSystem.Fat.TryGetFreeCluster(out uint firstCluster))
{
throw new IOException("Failed to allocate first cluster for new directory");
}
_fileSystem.Fat.SetEndOfChain(firstCluster);
DirectoryEntry newEntry = new DirectoryEntry(_fileSystem.FatOptions, name, FatAttributes.Directory, _fileSystem.FatVariant);
DirectoryEntry newEntry = new(_fileSystem.FatOptions, name, FatAttributes.Directory, _fileSystem.FatVariant);
newEntry.FirstCluster = firstCluster;
newEntry.CreationTime = _fileSystem.ConvertFromUtc(DateTime.UtcNow);
newEntry.LastWriteTime = newEntry.CreationTime;
@@ -297,11 +293,11 @@ namespace DiscUtils.Fat
throw new IOException("Directory entry already exists");
}
DirectoryEntry newEntry = new DirectoryEntry(newChild.ParentsChildEntry);
DirectoryEntry newEntry = new(newChild.ParentsChildEntry);
newEntry.Name = name;
AddEntry(newEntry);
DirectoryEntry newParentEntry = new DirectoryEntry(SelfEntry);
DirectoryEntry newParentEntry = new(SelfEntry);
newParentEntry.Name = FileName.ParentEntryName;
newChild.ParentEntry = newParentEntry;
}
@@ -367,7 +363,7 @@ namespace DiscUtils.Fat
else if ((mode == FileMode.OpenOrCreate || mode == FileMode.CreateNew || mode == FileMode.Create) && !exists)
{
// Create new file
DirectoryEntry newEntry = new DirectoryEntry(_fileSystem.FatOptions, name, FatAttributes.Archive, _fileSystem.FatVariant);
DirectoryEntry newEntry = new(_fileSystem.FatOptions, name, FatAttributes.Archive, _fileSystem.FatVariant);
newEntry.FirstCluster = 0; // i.e. Zero-length
newEntry.CreationTime = _fileSystem.ConvertFromUtc(DateTime.UtcNow);
newEntry.LastWriteTime = newEntry.CreationTime;
@@ -421,7 +417,7 @@ namespace DiscUtils.Fat
{
DirectoryEntry entry = _entries[id];
DirectoryEntry copy = new DirectoryEntry(entry);
DirectoryEntry copy = new(entry);
copy.Name = entry.Name.Deleted();
_dirStream.Position = id;
copy.WriteTo(_dirStream);
@@ -466,7 +462,7 @@ namespace DiscUtils.Fat
while (_dirStream.Position < _dirStream.Length)
{
long streamPos = _dirStream.Position;
DirectoryEntry entry = new DirectoryEntry(_fileSystem.FatOptions, _dirStream, _fileSystem.FatVariant);
DirectoryEntry entry = new(_fileSystem.FatOptions, _dirStream, _fileSystem.FatVariant);
if (entry.Attributes == (FatAttributes.ReadOnly | FatAttributes.Hidden | FatAttributes.System | FatAttributes.VolumeId))
{
@@ -542,20 +538,18 @@ namespace DiscUtils.Fat
private void PopulateNewChildDirectory(DirectoryEntry newEntry)
{
// Populate new directory with initial (special) entries. First one is easy, just change the name!
using (ClusterStream stream = new ClusterStream(_fileSystem, FileAccess.Write, newEntry.FirstCluster, uint.MaxValue))
{
// First is the self-referencing entry...
DirectoryEntry selfEntry = new DirectoryEntry(newEntry);
selfEntry.Name = FileName.SelfEntryName;
selfEntry.WriteTo(stream);
using ClusterStream stream = new(_fileSystem, FileAccess.Write, newEntry.FirstCluster, uint.MaxValue);
// First is the self-referencing entry...
DirectoryEntry selfEntry = new(newEntry);
selfEntry.Name = FileName.SelfEntryName;
selfEntry.WriteTo(stream);
// Second is a clone of our self entry (i.e. parent) - though dates are odd...
DirectoryEntry parentEntry = new DirectoryEntry(SelfEntry);
parentEntry.Name = FileName.ParentEntryName;
parentEntry.CreationTime = newEntry.CreationTime;
parentEntry.LastWriteTime = newEntry.LastWriteTime;
parentEntry.WriteTo(stream);
}
// Second is a clone of our self entry (i.e. parent) - though dates are odd...
DirectoryEntry parentEntry = new(SelfEntry);
parentEntry.Name = FileName.ParentEntryName;
parentEntry.CreationTime = newEntry.CreationTime;
parentEntry.LastWriteTime = newEntry.LastWriteTime;
parentEntry.WriteTo(stream);
}
private void Dispose(bool disposing)