public void SeveralFilesInSeveralSegments()
{
var firstFileBytes = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var secondFileBytes = TestData.GetElfFileBytesFromBuildId(TestData.anotherExpectedId);
var data = firstFileBytes.Concat(secondFileBytes).ToArray();
var firstFileSection = new FileSection("", 0, (ulong)firstFileBytes.Length);
var secondFileSection = new FileSection("", (ulong)firstFileBytes.Length,
(ulong)data.Length);
var reader = new BinaryReader(new MemoryStream(data));
var firstSegmentSize = firstFileBytes.Length - 1;
var firstSegment = new ProgramHeader(ProgramHeader.Type.LoadableSegment, 0, 0,
(ulong)firstFileBytes.Length - 1);
var secondSegment = new ProgramHeader(ProgramHeader.Type.LoadableSegment,
(ulong)firstSegmentSize,
(ulong)firstSegmentSize,
(ulong)secondFileBytes.Length + 1);
var firstModule = ReadModule(data, new[] { secondSegment, firstSegment },
firstFileSection);
Assert.AreEqual(TestData.expectedId, firstModule.Id);
var secondModule = ReadModule(data, new[] { firstSegment, secondSegment },
secondFileSection);
Assert.AreEqual(TestData.anotherExpectedId, secondModule.Id);
}
public void FileStartBeforeSegment()
{
var data = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var segment = new ProgramHeader(ProgramHeader.Type.LoadableSegment, 0, 1,
(ulong)data.Length);
var module = ReadModule(data, new[] { segment },
new FileSection("", 0, (ulong)data.Length));
Assert.AreEqual(BuildId.Empty, module.Id);
}
public void BuildIdEndsOutsideSegment()
{
var data = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var segment = new ProgramHeader(
ProgramHeader.Type.LoadableSegment, 0, 0, (ulong)data.Length - 1);
var module = ReadModule(data, new[] { segment },
new FileSection("", 0, (ulong)data.Length));
Assert.AreNotEqual(TestData.expectedId, module.Id);
}
public void FileAtTheMiddleOfSegment()
{
var buildIdFileData = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var buildIdLength = buildIdFileData.Length;
var data = new byte[buildIdLength].Concat(buildIdFileData).ToArray();
var segment = new ProgramHeader(ProgramHeader.Type.LoadableSegment, 0, 0,
(ulong)data.Length);
var module = ReadModule(data, new[] { segment },
new FileSection("", (ulong)buildIdLength, (ulong)buildIdLength * 2));
Assert.AreEqual(TestData.expectedId, module.Id);
}
// This test is checking a dump with the following structure:
// Start position Section description Section size in bytes
// 0 Dump elf header 64
// 64 Program headers --
// 64 File index note program header 56
// 120 File1 header 56
// 176 File2 header 56
// 232 File1 contents 156
// 388 File index note 104
// 484 File2 contents 156
TestDumpFile CreateValidDumpFile()
{
ushort programHeadersCount = 3;
byte[] elfHeaderBytes = TestData.GetElfBytes(ElfHeader.Size, ProgramHeader.Size,
programHeadersCount, false);
byte[] file1Bytes = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
ulong file1Offset =
(ulong)elfHeaderBytes.Length + programHeadersCount * (ulong)ProgramHeader.Size;
ulong file1Size = (ulong)file1Bytes.Length;
ulong file1Address = 1000;
byte[] file2Bytes = TestData.GetElfFileBytesFromBuildId(TestData.anotherExpectedId);
ulong file2Offset = 484;
ulong file2Size = (ulong)file2Bytes.Length;
ulong file2Address = 2000;
ulong fileIndexOffset = file1Offset + file1Size;
byte[] fileIndexBytes = TestData.GetNtFileSectionsBytes(
new[] { file1Address, file2Address },
new[] { file1Address + file1Size, file2Address + file2Size }, new[] { 0ul, 0ul },
new[] { expectedFileName, anotherExpectedFileName });
byte[] fileIndexNoteBytes = TestData.GetNoteSectionBytes(
NoteSection.CoreName, NoteSection.NtFileType, fileIndexBytes);
byte[] fileIndexHeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.NoteSegment, fileIndexOffset, 0ul /* address */,
(ulong)(fileIndexNoteBytes.Length));
byte[] file1HeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.LoadableSegment, file1Offset, file1Address, file1Size);
byte[] file2HeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.LoadableSegment, file2Offset, file2Address, file2Size);
byte[] headers = elfHeaderBytes.Concat(fileIndexHeaderBytes)
.Concat(file1HeaderBytes)
.Concat(file2HeaderBytes)
.ToArray();
Assert.That(file2Offset,
Is.EqualTo(fileIndexOffset + (ulong)fileIndexNoteBytes.Length));
return(new TestDumpFile {
NoteNtFileEnd = file2Offset,
Bytes = headers.Concat(file1Bytes)
.Concat(fileIndexNoteBytes)
.Concat(file2Bytes)
.ToArray(),
});
}
public void FileInSeveralSegments(int firstSegmentSize)
{
var data = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var secondSegmentSize = data.Length - firstSegmentSize;
var firstSegment = new ProgramHeader(
ProgramHeader.Type.LoadableSegment, 0, 0, (ulong)firstSegmentSize);
var secondSegment = new ProgramHeader(ProgramHeader.Type.LoadableSegment,
(ulong)firstSegmentSize,
(ulong)firstSegmentSize,
(ulong)secondSegmentSize);
var module = ReadModule(data, new[] { secondSegment, firstSegment },
new FileSection("", 0, (ulong)data.Length));
Assert.AreEqual(TestData.expectedId, module.Id);
}
public void CorrectModules()
{
ushort programHeadersCount = 4;
var elfHeaderBytes = TestData.GetElfBytes(ElfHeader.Size, ProgramHeader.Size,
programHeadersCount, false);
ulong firstFileOffset = ElfHeader.Size +
(ulong)programHeadersCount * ProgramHeader.Size;
var firstFileBytes = TestData.GetElfFileBytesFromBuildId(TestData.expectedId);
var secondFileBytes = TestData.GetElfFileBytesFromBuildId(TestData.anotherExpectedId);
var firstFileHeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.LoadableSegment, firstFileOffset, firstFileOffset,
(ulong)firstFileBytes.Length);
var firstFileIndexOffset = firstFileOffset + (ulong)firstFileBytes.Length;
var fileIndexBytes = TestData.GetNtFileSectionBytes(
firstFileOffset, firstFileIndexOffset, 0ul, expectedFileName);
var firstFileIndexNoteBytes = TestData.GetNoteSectionBytes(
NoteSection.CoreName, NoteSection.NtFileType, fileIndexBytes);
var firstFileIndexHeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.NoteSegment, firstFileIndexOffset, firstFileIndexOffset,
(ulong)firstFileBytes.Length);
ulong secondFileIndexOffset = firstFileIndexOffset +
(ulong)firstFileIndexNoteBytes.Length;
ulong secondFileOffset = secondFileIndexOffset + (ulong)firstFileIndexNoteBytes.Length;
ulong secondFileDataEnd = secondFileOffset + (ulong)secondFileBytes.Length;
var secondIndexBytes = TestData.GetNtFileSectionBytes(
secondFileOffset, secondFileDataEnd, 0ul, anotherExpectedFileName);
var secondFileIndexHeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.NoteSegment, secondFileIndexOffset, secondFileIndexOffset,
(ulong)secondIndexBytes.Length);
var secondFileIndexNoteBytes = TestData.GetNoteSectionBytes(
NoteSection.CoreName, NoteSection.NtFileType, secondIndexBytes);
var secondFileHeaderBytes = TestData.GetProgramHeaderBytes(
ProgramHeader.Type.LoadableSegment, secondFileOffset, secondFileOffset,
(ulong)secondFileBytes.Length);
var dumpBytes = elfHeaderBytes.Concat(firstFileHeaderBytes)
.Concat(firstFileIndexHeaderBytes).Concat(secondFileIndexHeaderBytes)
.Concat(secondFileHeaderBytes).Concat(firstFileBytes)
.Concat(firstFileIndexNoteBytes).Concat(secondFileIndexNoteBytes)
.Concat(secondFileBytes).ToArray();
_fileSystem.AddFile(dumpPath, new MockFileData(dumpBytes));
DumpReadResult dump = _provider.GetModules(dumpPath);
Assert.AreEqual(2, dump.Modules.Count());
var firstModule = dump.Modules.First();
Assert.AreEqual(expectedFileName, firstModule.Path);
Assert.AreEqual(TestData.expectedId, firstModule.Id);
var lastModule = dump.Modules.Last();
Assert.AreEqual(anotherExpectedFileName, lastModule.Path);
Assert.AreEqual(TestData.anotherExpectedId, lastModule.Id);
}