private IEnumerable <StringSectionEntry <T> > ReadStringSection <T>(ReadHandle handle, int base_offset, int length)
{
List <StringSectionEntry <T> > ret = new List <StringSectionEntry <T> >();
if (length < Marshal.SizeOf <ACTIVATION_CONTEXT_STRING_SECTION_HEADER>())
{
return(ret);
}
var header = handle.ReadStructure <ACTIVATION_CONTEXT_STRING_SECTION_HEADER>(base_offset);
if (header.Magic != STRING_SECTION_MAGIC || header.FormatVersion != 1)
{
return(ret);
}
foreach (var entry in handle.ReadArray <ACTIVATION_CONTEXT_STRING_SECTION_ENTRY>(base_offset + header.ElementListOffset, header.ElementCount))
{
string key = handle.ReadString(base_offset + entry.KeyOffset, entry.KeyLength);
T value = handle.ReadStructure <T>(base_offset + entry.Offset, entry.Length);
ret.Add(new StringSectionEntry <T>(key, value, base_offset + entry.Offset, GetAssemblyRosterEntry(entry.AssemblyRosterIndex)));
}
return(ret);
}
public ActivationContext(byte[] actctx)
{
using (ReadHandle handle = new ReadHandle(actctx))
{
ACTIVATION_CONTEXT_DATA header = handle.ReadStructure <ACTIVATION_CONTEXT_DATA>(0);
if (header.Magic != ACTCTX_MAGIC && header.FormatVersion != ACTCTX_VERSION)
{
throw new ArgumentException("Invalid header format");
}
ACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_HEADER roster_header = handle.ReadStructure <ACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_HEADER>(header.AssemblyRosterOffset);
_asm_roster.AddRange(handle.ReadArray <ACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_ENTRY>(roster_header.FirstEntryOffset, roster_header.EntryCount).Select(e => new ActCtxAssemblyRoster(e, handle, roster_header.AssemblyInformationSectionOffset)));
ACTIVATION_CONTEXT_DATA_TOC_HEADER toc_header = handle.ReadStructure <ACTIVATION_CONTEXT_DATA_TOC_HEADER>(header.DefaultTocOffset);
int base_offset = toc_header.FirstEntryOffset;
for (int i = 0; i < toc_header.EntryCount; ++i)
{
ACTIVATION_CONTEXT_DATA_TOC_ENTRY toc_entry = handle.ReadStructure <ACTIVATION_CONTEXT_DATA_TOC_ENTRY>(base_offset + i * Marshal.SizeOf <ACTIVATION_CONTEXT_DATA_TOC_ENTRY>());
if (toc_entry.Format == ACTIVATION_CONTEXT_SECTION_FORMAT.STRING_TABLE)
{
switch (toc_entry.Id)
{
case ACTIVATION_CONTEXT_SECTION_ID.COM_PROGID_REDIRECTION:
_com_progids.AddRange(ReadStringSection <ACTIVATION_CONTEXT_DATA_COM_PROGID_REDIRECTION>(handle,
toc_entry.Offset, toc_entry.Length).Select(e => new ActCtxComProgIdRedirection(e, handle, toc_entry.Offset)));
break;
case ACTIVATION_CONTEXT_SECTION_ID.DLL_REDIRECTION:
_dll_redir.AddRange(ReadStringSection <ACTIVATION_CONTEXT_DATA_DLL_REDIRECTION>(handle, toc_entry.Offset, toc_entry.Length)
.Select(e => new ActCtxDllRedirection(e, handle, toc_entry.Offset)));
break;
}
}
else if (toc_entry.Format == ACTIVATION_CONTEXT_SECTION_FORMAT.GUID_TABLE)
{
switch (toc_entry.Id)
{
case ACTIVATION_CONTEXT_SECTION_ID.COM_SERVER_REDIRECTION:
_com_servers.AddRange(ReadGuidSection <ACTIVATION_CONTEXT_DATA_COM_SERVER_REDIRECTION>(handle, toc_entry.Offset,
toc_entry.Length).Select(e => new ActCtxComServerRedirection(e, handle, toc_entry.Offset, e.Offset)));
break;
case ACTIVATION_CONTEXT_SECTION_ID.COM_INTERFACE_REDIRECTION:
_com_interfaces.AddRange(ReadGuidSection <ACTIVATION_CONTEXT_DATA_COM_INTERFACE_REDIRECTION>(handle, toc_entry.Offset,
toc_entry.Length).Select(e => new ActCtxComInterfaceRedirection(e, handle, toc_entry.Offset)));
break;
case ACTIVATION_CONTEXT_SECTION_ID.COM_TYPE_LIBRARY_REDIRECTION:
_com_typelibs.AddRange(ReadGuidSection <ACTIVATION_CONTEXT_DATA_COM_TYPE_LIBRARY_REDIRECTION>(handle, toc_entry.Offset,
toc_entry.Length).Select(e => new ActCtxComTypeLibraryRedirection(e, handle, toc_entry.Offset)));
break;
}
}
}
}
}
private IEnumerable <GuidSectionEntry <T> > ReadGuidSection <T>(ReadHandle handle, int base_offset, int length)
{
List <GuidSectionEntry <T> > ret = new List <GuidSectionEntry <T> >();
if (length < Marshal.SizeOf <ACTIVATION_CONTEXT_GUID_SECTION_HEADER>())
{
return(ret);
}
var header = handle.ReadStructure <ACTIVATION_CONTEXT_GUID_SECTION_HEADER>(base_offset);
if (header.Magic != GUID_SECTION_MAGIC || header.FormatVersion != 1)
{
return(ret);
}
for (int i = 0; i < header.ElementCount; ++i)
{
var entry = handle.ReadStructure <ACTIVATION_CONTEXT_GUID_SECTION_ENTRY>(base_offset + header.ElementListOffset + i * Marshal.SizeOf <ACTIVATION_CONTEXT_GUID_SECTION_ENTRY>());
T value = handle.ReadStructure <T>(base_offset + entry.Offset, entry.Length);
ret.Add(new GuidSectionEntry <T>(entry.Guid, value, base_offset + entry.Offset, GetAssemblyRosterEntry(entry.AssemblyRosterIndex)));
}
return(ret);
}
internal ActCtxAssemblyRoster(ACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_ENTRY entry, ReadHandle handle, int base_offset)
{
AssemblyName = string.Empty;
AssemblyDirectoryName = string.Empty;
FullPath = string.Empty;
if ((entry.Flags & ACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_ENTRY_FLAGS.INVALID) != 0)
{
return;
}
AssemblyName = handle.ReadString(entry.AssemblyNameOffset, entry.AssemblyNameLength);
if (entry.AssemblyInformationOffset == 0)
{
return;
}
var info = handle.ReadStructure <ACTIVATION_CONTEXT_DATA_ASSEMBLY_INFORMATION>(entry.AssemblyInformationOffset);
AssemblyDirectoryName = handle.ReadString(base_offset + info.AssemblyDirectoryNameOffset, info.AssemblyDirectoryNameLength);
FullPath = Path.Combine(SXS_FOLDER, AssemblyDirectoryName);
}
internal ActCtxComProgIdRedirection(StringSectionEntry <ACTIVATION_CONTEXT_DATA_COM_PROGID_REDIRECTION> entry, ReadHandle handle, int base_offset)
{
ProgId = entry.Key;
Clsid = handle.ReadStructure <Guid>(base_offset + entry.Entry.ConfiguredClsidOffset);
}