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https://github.com/ttttupup/wxhelper.git
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387 lines
14 KiB
Java
387 lines
14 KiB
Java
// find mars
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//@author ttttupup
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//@category _NEW_
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//@keybinding
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//@menupath
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//@toolbar
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import docking.widgets.filter.ContainsTextFilterFactory;
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import docking.widgets.filter.TextFilter;
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import ghidra.app.decompiler.DecompInterface;
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import ghidra.app.decompiler.DecompileOptions;
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import ghidra.app.decompiler.DecompileResults;
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import ghidra.app.script.GhidraScript;
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import ghidra.program.model.address.Address;
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import ghidra.program.model.address.AddressFactory;
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import ghidra.program.model.address.AddressIterator;
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import ghidra.program.model.address.AddressSet;
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import ghidra.program.model.address.AddressSetView;
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import ghidra.program.model.address.AddressSpace;
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import ghidra.program.model.block.BasicBlockModel;
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import ghidra.program.model.block.CodeBlock;
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import ghidra.program.model.listing.CodeUnit;
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import ghidra.program.model.listing.Data;
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import ghidra.program.model.listing.Function;
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import ghidra.program.model.listing.FunctionManager;
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import ghidra.program.model.listing.Instruction;
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import ghidra.program.model.mem.MemoryAccessException;
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import ghidra.program.model.pcode.HighFunction;
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import ghidra.program.model.pcode.PcodeBlockBasic;
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import ghidra.program.model.pcode.PcodeOp;
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import ghidra.program.model.pcode.PcodeOpAST;
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import ghidra.program.model.pcode.Varnode;
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import ghidra.program.model.symbol.Reference;
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import ghidra.program.model.symbol.ReferenceIterator;
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import ghidra.program.model.symbol.ReferenceManager;
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import ghidra.program.model.symbol.SourceType;
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import ghidra.program.util.string.FoundString;
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import ghidra.sleigh.grammar.SleighParser.stringorident_return;
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import ghidra.util.StringUtilities;
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import ghidra.util.exception.CancelledException;
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import ghidra.util.exception.DuplicateNameException;
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import ghidra.util.exception.InvalidInputException;
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public class FindMarsScript extends GhidraScript {
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DecompInterface decompiler = new DecompInterface();
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BasicBlockModel basicBlockModel;
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@Override
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protected void run() throws Exception {
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DecompileOptions decompileOptions = new DecompileOptions();
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decompiler.setOptions(decompileOptions);
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decompiler.openProgram(currentProgram);
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basicBlockModel = new BasicBlockModel(currentProgram);
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Address findXScopeTracer = findXScopeTracer();
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// Address findXScopeTracer = currentProgram.getAddressFactory().getAddress("0x183d04d10");
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if (null != findXScopeTracer) {
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ReferenceIterator referenceIterator = currentProgram.getReferenceManager()
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.getReferencesTo(findXScopeTracer);
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while (referenceIterator.hasNext()) {
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monitor.checkCancelled();
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Reference next = referenceIterator.next();
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Address fromAddress = next.getFromAddress();
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Function functionContaining = currentProgram.getFunctionManager().getFunctionContaining(fromAddress);
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if (null == functionContaining) {
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println("no found function: " + fromAddress.toString());
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continue;
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}
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DecompileResults res = decompiler.decompileFunction(functionContaining, 20, null);
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if (!res.decompileCompleted()) {
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println("decompile error: " + res.getErrorMessage());
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continue;
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}
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HighFunction highFunction = res.getHighFunction();
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Iterator<PcodeOpAST> pcodeOps = highFunction.getPcodeOps();
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while (pcodeOps.hasNext()) {
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monitor.checkCancelled();
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PcodeOpAST opAST = pcodeOps.next();
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int opcode = opAST.getOpcode();
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if (PcodeOp.CALL == opcode || PcodeOp.CALLIND == opcode || PcodeOp.CALLOTHER == opcode) {
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Varnode input0 = opAST.getInput(0);
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boolean contains = input0.contains(findXScopeTracer);
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if (contains) {
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Varnode input3 = opAST.getInput(3);
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Varnode input4 = opAST.getInput(4);
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if (input4 == null || input3 == null) {
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continue;
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}
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String namespaceString = "";
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String funcNameString = "";
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if (input3.isUnique()) {
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namespaceString = getUniqueValue(input3);
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} else if (input3.isConstant()) {
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namespaceString = getConstact(input3);
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}
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if (input4.isUnique()) {
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funcNameString = getUniqueValue(input4);
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} else if (input4.isConstant()) {
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funcNameString = getConstact(input4);
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}
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if (StringUtilities.isAllBlank(namespaceString)
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|| StringUtilities.isAllBlank(funcNameString)) {
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continue;
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}
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String name = namespaceString.replace(" ", "") + "::" + funcNameString.replace(" ", "");
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println("find function :" + name);
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functionContaining.setName(name, SourceType.USER_DEFINED);
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currentProgram.getListing().setComment(functionContaining.getEntryPoint(),
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CodeUnit.EOL_COMMENT, "mars scipt auto define: " + name);
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}
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}
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}
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}
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}
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}
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private String getConstact(Varnode input3) {
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Address address2 = input3.getAddress();
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Address address3 = currentProgram.getAddressFactory().getDefaultAddressSpace().getAddress(address2.getOffset());
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Data dataAt2 = getDataAt(address3);
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if (null != dataAt2) {
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if (dataAt2.hasStringValue()) {
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return dataAt2.getValue().toString();
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}
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}
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return null;
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}
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private void easy(Address findXScopeTracer) throws CancelledException {
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if (null != findXScopeTracer) {
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ReferenceIterator referenceIterator = currentProgram.getReferenceManager()
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.getReferencesTo(findXScopeTracer);
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while (referenceIterator.hasNext()) {
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monitor.checkCancelled();
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Reference next = referenceIterator.next();
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Address fromAddress = next.getFromAddress();
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Instruction instructionAt = currentProgram.getListing().getInstructionAt(fromAddress);
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if (null != instructionAt) {
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PcodeOp[] pcode = instructionAt.getPcode();
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if (null != pcode) {
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for (PcodeOp pcodeOp : pcode) {
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if (pcodeOp.getOpcode() == PcodeOp.CALL) {
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Varnode namespace = pcodeOp.getInput(3);
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Varnode funcName = pcodeOp.getInput(4);
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if (null != namespace) {
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if (namespace.isConstant()) {
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long offset = namespace.getAddress().getOffset();
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Address address = currentProgram.getAddressFactory().getDefaultAddressSpace()
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.getAddress(offset);
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Data dataAt = currentProgram.getListing().getDataAt(address);
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if (null != dataAt) {
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if (dataAt.hasStringValue()) {
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dataAt.getValue().toString();
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}
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}
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}
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}
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if (null != funcName) {
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if (funcName.isConstant()) {
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long offset = funcName.getAddress().getOffset();
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Address address = currentProgram.getAddressFactory().getDefaultAddressSpace()
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.getAddress(offset);
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Data dataAt = currentProgram.getListing().getDataAt(address);
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if (null != dataAt) {
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if (dataAt.hasStringValue()) {
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dataAt.getValue().toString();
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}
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}
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}
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}
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}
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}
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}
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println("caller address: " + fromAddress.toString());
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}
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}
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}
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}
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private void find() throws Exception {
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Function findXLogger = findXLogger();
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if (null != findXLogger) {
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if (findXLogger.isThunk()) {
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currentProgram.getFunctionManager().createFunction("XLogger::operator()", findXLogger.getEntryPoint(),
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findXLogger.getBody(), findXLogger.getSignatureSource());
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} else {
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findXLogger.setName("XLogger::operator()", SourceType.USER_DEFINED);
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currentProgram.getListing().setComment(findXLogger.getEntryPoint(), CodeUnit.EOL_COMMENT,
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"rename function: XLogger::operator()");
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ReferenceIterator referenceIterator = currentProgram.getReferenceManager()
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.getReferencesTo(findXLogger.getEntryPoint());
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while (referenceIterator.hasNext()) {
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monitor.checkCancelled();
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Reference next = referenceIterator.next();
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Address fromAddress = next.getFromAddress();
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println("caller address: " + fromAddress.toString());
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handle(fromAddress, findXLogger.getEntryPoint());
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}
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}
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}
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}
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private Address findXScopeTracer() throws Exception {
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List<FoundString> list = findStrings(null, 5, 1, true, false);
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ContainsTextFilterFactory factory = new ContainsTextFilterFactory(false, true);
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TextFilter textFilter = factory.getTextFilter("mars::comm::DNS::GetHostByName");
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for (FoundString foundString : list) {
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monitor.checkCancelled();
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String string = foundString.getString(currentProgram.getMemory());
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if (textFilter.matches(string)) {
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Address address = foundString.getAddress();
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println("=====text addr :" + address.toString());
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ReferenceIterator referencesTo = currentProgram.getReferenceManager().getReferencesTo(address);
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while (referencesTo.hasNext()) {
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Reference ref = referencesTo.next();
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Address textAddress = ref.getFromAddress();
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Function func = currentProgram.getFunctionManager().getFunctionContaining(textAddress);
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if (null == func) {
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continue;
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}
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CodeBlock[] codeBlocksContaining = basicBlockModel.getCodeBlocksContaining(textAddress, monitor);
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for (CodeBlock codeBlock : codeBlocksContaining) {
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AddressIterator addressIterator = codeBlock.getAddresses(true);
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while (addressIterator.hasNext()) {
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Address next = addressIterator.next();
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CodeUnit codeUnitAt = currentProgram.getListing().getCodeUnitAt(next);
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if (null != codeUnitAt) {
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if (codeUnitAt.getMnemonicString().equals("CALL")) {
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Instruction instructionAt = currentProgram.getListing().getInstructionAt(next);
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PcodeOp[] pcode = instructionAt.getPcode();
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PcodeOp pcodeOp = pcode[pcode.length - 1];
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Varnode input = pcodeOp.getInput(0);
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Address address2 = input.getAddress();
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println("===== XScopeTracer::XScopeTracer addr :" + address2.toString());
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Function functionAt = currentProgram.getFunctionManager().getFunctionAt(address2);
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if (null != functionAt) {
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functionAt.setName("XScopeTracer::XScopeTracer", SourceType.USER_DEFINED);
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currentProgram.getListing().setComment(functionAt.getEntryPoint(),
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CodeUnit.EOL_COMMENT, "scipt auto define: XScopeTracer::XScopeTracer");
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} else {
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createFunction(address2, "XScopeTracer::XScopeTracer");
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currentProgram.getListing().setComment(address2, CodeUnit.EOL_COMMENT,
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"scipt auto create: XScopeTracer::XScopeTracer");
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}
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return address2;
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}
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}
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}
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}
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}
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}
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}
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return null;
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}
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private void handle(Address address, Address calleeAddress) throws CancelledException {
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Function functionContaining = currentProgram.getFunctionManager().getFunctionContaining(address);
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if (null == functionContaining) {
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println("no found function: " + address.toString());
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return;
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}
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DecompileResults res = decompiler.decompileFunction(functionContaining, 20, null);
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if (!res.decompileCompleted()) {
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println("decompile error: " + res.getErrorMessage());
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return;
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}
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HighFunction highFunction = res.getHighFunction();
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ArrayList<PcodeBlockBasic> basicBlocks = highFunction.getBasicBlocks();
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for (PcodeBlockBasic pcodeBlockBasic : basicBlocks) {
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monitor.checkCancelled();
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boolean contains = pcodeBlockBasic.contains(address);
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if (contains) {
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Iterator<PcodeOp> iterator = pcodeBlockBasic.getIterator();
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for (; iterator.hasNext();) {
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monitor.checkCancelled();
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PcodeOp next = iterator.next();
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if (next.getOpcode() == PcodeOp.CALL) {
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if (next.getNumInputs() > 4) {
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Varnode input3 = next.getInput(3);
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if (null != input3) {
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if (input3.isUnique()) {
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String uniqueValue = getUniqueValue(input3);
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if (null != uniqueValue) {
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println(uniqueValue);
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}
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}
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}
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}
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}
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}
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}
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}
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}
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private String getUniqueValue(Varnode input3) {
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PcodeOp def = input3.getDef();
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Varnode[] inputs = def.getInputs();
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if (null != inputs && inputs.length > 0) {
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if (inputs[0].isConstant()) {
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Address address2 = inputs[0].getAddress();
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Address address3 = currentProgram.getAddressFactory().getDefaultAddressSpace()
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.getAddress(address2.getOffset());
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Data dataAt2 = currentProgram.getListing().getDataAt(address3);
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if (null != dataAt2) {
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if (dataAt2.hasStringValue()) {
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return dataAt2.getValue().toString();
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}
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}
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}
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}
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return null;
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}
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private Function findXLogger() throws MemoryAccessException, CancelledException {
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FunctionManager functionManager = currentProgram.getFunctionManager();
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ReferenceManager referenceManager = currentProgram.getReferenceManager();
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AddressFactory factory = currentProgram.getAddressFactory();
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AddressSpace[] addressSpaces = factory.getAddressSpaces();
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AddressSetView initializedMemory = currentProgram.getMemory().getLoadedAndInitializedAddressSet();
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AddressSet searchSet = initializedMemory.intersect(new AddressSet(initializedMemory));
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List<FoundString> findStrings = new ArrayList<>();
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println("初次查询速度较慢,请耐心等待。");
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for (AddressSpace space : addressSpaces) {
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if (monitor.isCancelled()) {
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break;
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}
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AddressSet intersecting = searchSet.intersectRange(space.getMinAddress(), space.getMaxAddress());
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findStrings.addAll(findStrings(null, 10, 1, true, true));
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}
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if (null != findStrings && findStrings.size() > 0) {
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ContainsTextFilterFactory containsTextFilterFactory = new ContainsTextFilterFactory(false, true);
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TextFilter textFilter = containsTextFilterFactory
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.getTextFilter("XLogger& XLogger::operator()(const char* _format, ...)");
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for (FoundString foundString : findStrings) {
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if (monitor.isCancelled()) {
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break;
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}
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String string = foundString.getString(currentProgram.getMemory());
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if (textFilter.matches(string)) {
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Address address = foundString.getAddress();
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println(address.toString());
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ReferenceIterator referencesTo = referenceManager.getReferencesTo(address);
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while (referencesTo.hasNext()) {
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if (monitor.isCancelled()) {
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break;
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}
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Reference ref = referencesTo.next();
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Address xLoggerAddr = ref.getFromAddress();
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Function targetFunction = functionManager.getFunctionContaining(xLoggerAddr);
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if (null == targetFunction) {
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continue;
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}
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println("XLogger::operator() ：" + targetFunction.getEntryPoint().toString());
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return targetFunction;
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}
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}
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}
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}
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return null;
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}
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}
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