mirror of
https://github.com/ttttupup/wxhelper.git
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feat: find mars script
This commit is contained in:
ttttupup
parent
0859358c29
commit
c49eaf9203
@ -298,216 +298,4 @@ public class FindCallScript extends GhidraScript {
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return list;
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}
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}
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class GraphFunctionFactory {
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public static GDirectedGraph<FunctionVertex, FunctionEdge> createGraph(Function f, TaskMonitor monitor)
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throws CancelledException {
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if (monitor == null) {
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monitor = TaskMonitor.DUMMY;
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}
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JungDirectedGraph<FunctionVertex, FunctionEdge> graph = new JungDirectedGraph<>();
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BidiMap<CodeBlock, FunctionVertex> vertices = createVertices(f, monitor);
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for (FunctionVertex v : vertices.values()) {
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graph.addVertex(v);
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}
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Collection<FunctionEdge> edges = createdEdges(vertices, monitor);
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for (FunctionEdge e : edges) {
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graph.addEdge(e);
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}
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// this must be done after the edges are added to the graph
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for (FunctionVertex vertex : vertices.values()) {
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vertex.setType(getVertexType(graph, vertex));
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}
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return graph;
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}
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private static BidiMap<CodeBlock, FunctionVertex> createVertices(Function f, TaskMonitor monitor)
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throws CancelledException {
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BidiMap<CodeBlock, FunctionVertex> vertices = new DualHashBidiMap<>();
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Program p = f.getProgram();
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CodeBlockModel blockModel = new BasicBlockModel(p);
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AddressSetView addresses = f.getBody();
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CodeBlockIterator iterator = blockModel.getCodeBlocksContaining(addresses, monitor);
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monitor.initialize(addresses.getNumAddresses());
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for (; iterator.hasNext();) {
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CodeBlock codeBlock = iterator.next();
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FlowType flowType = codeBlock.getFlowType();
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boolean isEntry = isEntry(codeBlock);
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FunctionVertex vertex = new FunctionVertex(codeBlock, flowType, isEntry);
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vertices.put(codeBlock, vertex);
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long blockAddressCount = codeBlock.getNumAddresses();
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long currentProgress = monitor.getProgress();
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monitor.setProgress(currentProgress + blockAddressCount);
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}
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return vertices;
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}
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private static Collection<FunctionEdge> createdEdges(BidiMap<CodeBlock, FunctionVertex> vertices,
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TaskMonitor monitor) throws CancelledException {
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List<FunctionEdge> edges = new ArrayList<>();
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for (FunctionVertex startVertex : vertices.values()) {
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Collection<FunctionEdge> vertexEdges = getEdgesForStartVertex(vertices, startVertex, monitor);
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edges.addAll(vertexEdges);
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}
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return edges;
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}
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private static Collection<FunctionEdge> getEdgesForStartVertex(BidiMap<CodeBlock, FunctionVertex> blockToVertexMap,
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FunctionVertex startVertex, TaskMonitor monitor) throws CancelledException {
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List<FunctionEdge> edges = new ArrayList<>();
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CodeBlock codeBlock = blockToVertexMap.getKey(startVertex);
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CodeBlockReferenceIterator destinations = codeBlock.getDestinations(monitor);
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for (; destinations.hasNext();) {
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CodeBlockReference reference = destinations.next();
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CodeBlock destinationBlock = reference.getDestinationBlock();
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FunctionVertex destinationVertex = blockToVertexMap.get(destinationBlock);
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if (destinationVertex == null) {
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continue;// no vertex means the code block is not in our function
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}
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edges.add(new FunctionEdge(startVertex, destinationVertex, reference.getFlowType()));
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}
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return edges;
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}
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private static VertexType getVertexType(Graph<FunctionVertex, FunctionEdge> graph, FunctionVertex v) {
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boolean isEntry = v.isEntry();
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boolean isExit = false;
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FlowType flowType = v.getFlowType();
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if (flowType.isTerminal()) {
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isExit = true;
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}
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Collection<FunctionEdge> outs = graph.getOutEdges(v);
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if (outs == null || outs.isEmpty()) {
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isExit = true;
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}
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VertexType type = VertexType.BODY;
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if (isEntry) {
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if (isExit) {
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type = VertexType.SINGLETON;
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} else {
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type = VertexType.ENTRY;
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}
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} else if (isExit) {
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type = VertexType.EXIT;
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}
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return type;
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}
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private static boolean isEntry(CodeBlock codeBlock) {
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boolean isSource = true;
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try {
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CodeBlockReferenceIterator iter = codeBlock.getSources(TaskMonitor.DUMMY);
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while (iter.hasNext()) {
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isSource = false;
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if (iter.next().getFlowType().isCall()) {
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// any calls into a code block will make it an 'entry'
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return true;
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}
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}
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} catch (CancelledException e) {
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// will never happen, because I don't have a monitor
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}
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return isSource;
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}
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}
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class FunctionVertex extends CodeBlockVertex {
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private VertexType type = VertexType.BODY;
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private FlowType flowType;
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private boolean isEntry;
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public FunctionVertex(CodeBlock codeBlock, FlowType flowType, boolean isEntry) {
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super(codeBlock);
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this.flowType = flowType;
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this.isEntry = isEntry;
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}
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public boolean isEntry() {
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return isEntry;
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}
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public FlowType getFlowType() {
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return flowType;
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}
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public VertexType getType() {
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return type;
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}
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public void setType(VertexType type) {
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this.type = type;
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}
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}
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class FunctionEdge implements GEdge<FunctionVertex> {
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private FunctionVertex start;
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private FunctionVertex end;
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private FlowType flowType;
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public FunctionEdge(FunctionVertex start, FunctionVertex end, FlowType flowType) {
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this.start = start;
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this.end = end;
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this.flowType = flowType;
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}
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public FlowType getFlowType() {
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return flowType;
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}
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@Override
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public FunctionVertex getStart() {
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return start;
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}
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@Override
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public FunctionVertex getEnd() {
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return end;
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}
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}
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enum VertexType {
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//@formatter:off
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BODY,
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ENTRY,
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EXIT,
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GROUP,
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SINGLETON;
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//@formatter:on
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public boolean isEntry() {
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return this == ENTRY || this == SINGLETON;
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}
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public boolean isExit() {
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return this == EXIT || this == SINGLETON;
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}
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}
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386
script/ghidra_script/FindMarsScript.java
Normal file
386
script/ghidra_script/FindMarsScript.java
Normal file
@ -0,0 +1,386 @@
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// 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;
|
||||
|
||||
}
|
||||
|
||||
private void handle(Address address, Address calleeAddress) throws CancelledException {
|
||||
Function functionContaining = currentProgram.getFunctionManager().getFunctionContaining(address);
|
||||
if (null == functionContaining) {
|
||||
println("no found function: " + address.toString());
|
||||
return;
|
||||
}
|
||||
|
||||
DecompileResults res = decompiler.decompileFunction(functionContaining, 20, null);
|
||||
if (!res.decompileCompleted()) {
|
||||
println("decompile error: " + res.getErrorMessage());
|
||||
return;
|
||||
}
|
||||
|
||||
HighFunction highFunction = res.getHighFunction();
|
||||
ArrayList<PcodeBlockBasic> basicBlocks = highFunction.getBasicBlocks();
|
||||
|
||||
for (PcodeBlockBasic pcodeBlockBasic : basicBlocks) {
|
||||
monitor.checkCancelled();
|
||||
boolean contains = pcodeBlockBasic.contains(address);
|
||||
if (contains) {
|
||||
Iterator<PcodeOp> iterator = pcodeBlockBasic.getIterator();
|
||||
for (; iterator.hasNext();) {
|
||||
monitor.checkCancelled();
|
||||
PcodeOp next = iterator.next();
|
||||
if (next.getOpcode() == PcodeOp.CALL) {
|
||||
if (next.getNumInputs() > 4) {
|
||||
Varnode input3 = next.getInput(3);
|
||||
if (null != input3) {
|
||||
if (input3.isUnique()) {
|
||||
String uniqueValue = getUniqueValue(input3);
|
||||
if (null != uniqueValue) {
|
||||
println(uniqueValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private String getUniqueValue(Varnode input3) {
|
||||
PcodeOp def = input3.getDef();
|
||||
Varnode[] inputs = def.getInputs();
|
||||
if (null != inputs && inputs.length > 0) {
|
||||
if (inputs[0].isConstant()) {
|
||||
Address address2 = inputs[0].getAddress();
|
||||
Address address3 = currentProgram.getAddressFactory().getDefaultAddressSpace()
|
||||
.getAddress(address2.getOffset());
|
||||
Data dataAt2 = currentProgram.getListing().getDataAt(address3);
|
||||
if (null != dataAt2) {
|
||||
if (dataAt2.hasStringValue()) {
|
||||
return dataAt2.getValue().toString();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
private Function findXLogger() throws MemoryAccessException, CancelledException {
|
||||
|
||||
FunctionManager functionManager = currentProgram.getFunctionManager();
|
||||
ReferenceManager referenceManager = currentProgram.getReferenceManager();
|
||||
AddressFactory factory = currentProgram.getAddressFactory();
|
||||
AddressSpace[] addressSpaces = factory.getAddressSpaces();
|
||||
AddressSetView initializedMemory = currentProgram.getMemory().getLoadedAndInitializedAddressSet();
|
||||
|
||||
AddressSet searchSet = initializedMemory.intersect(new AddressSet(initializedMemory));
|
||||
List<FoundString> findStrings = new ArrayList<>();
|
||||
println("初次查询速度较慢,请耐心等待。");
|
||||
for (AddressSpace space : addressSpaces) {
|
||||
if (monitor.isCancelled()) {
|
||||
break;
|
||||
}
|
||||
AddressSet intersecting = searchSet.intersectRange(space.getMinAddress(), space.getMaxAddress());
|
||||
findStrings.addAll(findStrings(null, 10, 1, true, true));
|
||||
}
|
||||
|
||||
if (null != findStrings && findStrings.size() > 0) {
|
||||
ContainsTextFilterFactory containsTextFilterFactory = new ContainsTextFilterFactory(false, true);
|
||||
TextFilter textFilter = containsTextFilterFactory
|
||||
.getTextFilter("XLogger& XLogger::operator()(const char* _format, ...)");
|
||||
for (FoundString foundString : findStrings) {
|
||||
if (monitor.isCancelled()) {
|
||||
break;
|
||||
}
|
||||
String string = foundString.getString(currentProgram.getMemory());
|
||||
if (textFilter.matches(string)) {
|
||||
Address address = foundString.getAddress();
|
||||
println(address.toString());
|
||||
|
||||
ReferenceIterator referencesTo = referenceManager.getReferencesTo(address);
|
||||
while (referencesTo.hasNext()) {
|
||||
if (monitor.isCancelled()) {
|
||||
break;
|
||||
}
|
||||
Reference ref = referencesTo.next();
|
||||
Address xLoggerAddr = ref.getFromAddress();
|
||||
Function targetFunction = functionManager.getFunctionContaining(xLoggerAddr);
|
||||
if (null == targetFunction) {
|
||||
continue;
|
||||
}
|
||||
println("XLogger::operator() ：" + targetFunction.getEntryPoint().toString());
|
||||
return targetFunction;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user