Repository: LaurieWired/GhidraMCP Branch: main Commit: 27f316f80139 Files: 14 Total size: 101.9 KB Directory structure: gitextract_813uay9s/ ├── .github/ │ └── workflows/ │ └── build.yml ├── .gitignore ├── LICENSE ├── README.md ├── bridge_mcp_ghidra.py ├── lib/ │ └── .gitignore ├── pom.xml ├── requirements.txt └── src/ ├── assembly/ │ └── ghidra-extension.xml ├── main/ │ ├── java/ │ │ └── com/ │ │ └── lauriewired/ │ │ └── GhidraMCPPlugin.java │ └── resources/ │ ├── META-INF/ │ │ └── MANIFEST.MF │ ├── Module.manifest │ └── extension.properties └── test/ └── java/ └── com/ └── lauriewired/ └── AppTest.java ================================================ FILE CONTENTS ================================================ ================================================ FILE: .github/workflows/build.yml ================================================ name: Build with Maven on: push: branches: [ "main" ] pull_request: branches: [ "main" ] jobs: build: runs-on: ubuntu-latest env: GHIDRA_VERSION: 11.3.2 GHIDRA_DATE: 20250415 GHIDRA_LIBS: >- Features/Base/lib/Base.jar Features/Decompiler/lib/Decompiler.jar Framework/Docking/lib/Docking.jar Framework/Generic/lib/Generic.jar Framework/Project/lib/Project.jar Framework/SoftwareModeling/lib/SoftwareModeling.jar Framework/Utility/lib/Utility.jar Framework/Gui/lib/Gui.jar steps: - uses: actions/checkout@v4 - name: Set up JDK 21 uses: actions/setup-java@v4 with: java-version: '21' distribution: 'temurin' cache: maven - name: Download Ghidra run: | wget --no-verbose -O ghidra.zip https://github.com/NationalSecurityAgency/ghidra/releases/download/Ghidra_${{ env.GHIDRA_VERSION }}_build/ghidra_${{ env.GHIDRA_VERSION }}_PUBLIC_${{ env.GHIDRA_DATE }}.zip 7z x -bd ghidra.zip - name: Copy Ghidra libs run: | mkdir -p ./lib for libfile in ${{ env.GHIDRA_LIBS }} do echo "Copying ${libfile} to lib/" cp ghidra_${{ env.GHIDRA_VERSION }}_PUBLIC/Ghidra/${libfile} ./lib/ done - name: Build with Maven run: mvn clean package assembly:single - name: Assemble release directory run: | mkdir release cp target/GhidraMCP-*-SNAPSHOT.zip release/ cp bridge_mcp_ghidra.py release/ - name: Upload artifact uses: actions/upload-artifact@v4 with: name: GhidraMCP-artifact path: | release/* ================================================ FILE: .gitignore ================================================ # Maven target directory /target/ # Compiled class files *.class # Logs *.log # IDE files # IntelliJ .idea/ *.iml *.iws out/ # Eclipse .project .classpath .settings/ bin/ # VS Code .vscode/ # macOS .DS_Store .AppleDouble .LSOverride # Thumbnails ._* # macOS metadata files .Spotlight-V100 .Trashes # Maven Wrapper .mvn/ !/.mvn/wrapper/maven-wrapper.jar mvnw mvnw.cmd # Environment files .env .env.* # Java crash logs (if any) hs_err_pid* replay_pid* # Third party JAR files from Ghidra lib/*.jar ================================================ FILE: LICENSE ================================================ Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: README.md ================================================ [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0) [![GitHub release (latest by date)](https://img.shields.io/github/v/release/LaurieWired/GhidraMCP)](https://github.com/LaurieWired/GhidraMCP/releases) [![GitHub stars](https://img.shields.io/github/stars/LaurieWired/GhidraMCP)](https://github.com/LaurieWired/GhidraMCP/stargazers) [![GitHub forks](https://img.shields.io/github/forks/LaurieWired/GhidraMCP)](https://github.com/LaurieWired/GhidraMCP/network/members) [![GitHub contributors](https://img.shields.io/github/contributors/LaurieWired/GhidraMCP)](https://github.com/LaurieWired/GhidraMCP/graphs/contributors) [![Follow @lauriewired](https://img.shields.io/twitter/follow/lauriewired?style=social)](https://twitter.com/lauriewired) ![ghidra_MCP_logo](https://github.com/user-attachments/assets/4986d702-be3f-4697-acce-aea55cd79ad3) # ghidraMCP ghidraMCP is an Model Context Protocol server for allowing LLMs to autonomously reverse engineer applications. It exposes numerous tools from core Ghidra functionality to MCP clients. https://github.com/user-attachments/assets/36080514-f227-44bd-af84-78e29ee1d7f9 # Features MCP Server + Ghidra Plugin - Decompile and analyze binaries in Ghidra - Automatically rename methods and data - List methods, classes, imports, and exports # Installation ## Prerequisites - Install [Ghidra](https://ghidra-sre.org) - Python3 - MCP [SDK](https://github.com/modelcontextprotocol/python-sdk) ## Ghidra First, download the latest [release](https://github.com/LaurieWired/GhidraMCP/releases) from this repository. This contains the Ghidra plugin and Python MCP client. Then, you can directly import the plugin into Ghidra. 1. Run Ghidra 2. Select `File` -> `Install Extensions` 3. Click the `+` button 4. Select the `GhidraMCP-1-2.zip` (or your chosen version) from the downloaded release 5. Restart Ghidra 6. Make sure the GhidraMCPPlugin is enabled in `File` -> `Configure` -> `Developer` 7. *Optional*: Configure the port in Ghidra with `Edit` -> `Tool Options` -> `GhidraMCP HTTP Server` Video Installation Guide: https://github.com/user-attachments/assets/75f0c176-6da1-48dc-ad96-c182eb4648c3 ## MCP Clients Theoretically, any MCP client should work with ghidraMCP. Three examples are given below. ## Example 1: Claude Desktop To set up Claude Desktop as a Ghidra MCP client, go to `Claude` -> `Settings` -> `Developer` -> `Edit Config` -> `claude_desktop_config.json` and add the following: ```json { "mcpServers": { "ghidra": { "command": "python", "args": [ "/ABSOLUTE_PATH_TO/bridge_mcp_ghidra.py", "--ghidra-server", "http://127.0.0.1:8080/" ] } } } ``` Alternatively, edit this file directly: ``` /Users/YOUR_USER/Library/Application Support/Claude/claude_desktop_config.json ``` The server IP and port are configurable and should be set to point to the target Ghidra instance. If not set, both will default to localhost:8080. ## Example 2: Cline To use GhidraMCP with [Cline](https://cline.bot), this requires manually running the MCP server as well. First run the following command: ``` python bridge_mcp_ghidra.py --transport sse --mcp-host 127.0.0.1 --mcp-port 8081 --ghidra-server http://127.0.0.1:8080/ ``` The only *required* argument is the transport. If all other arguments are unspecified, they will default to the above. Once the MCP server is running, open up Cline and select `MCP Servers` at the top. ![Cline select](https://github.com/user-attachments/assets/88e1f336-4729-46ee-9b81-53271e9c0ce0) Then select `Remote Servers` and add the following, ensuring that the url matches the MCP host and port: 1. Server Name: GhidraMCP 2. Server URL: `http://127.0.0.1:8081/sse` ## Example 3: 5ire Another MCP client that supports multiple models on the backend is [5ire](https://github.com/nanbingxyz/5ire). To set up GhidraMCP, open 5ire and go to `Tools` -> `New` and set the following configurations: 1. Tool Key: ghidra 2. Name: GhidraMCP 3. Command: `python /ABSOLUTE_PATH_TO/bridge_mcp_ghidra.py` # Building from Source 1. Copy the following files from your Ghidra directory to this project's `lib/` directory: - `Ghidra/Features/Base/lib/Base.jar` - `Ghidra/Features/Decompiler/lib/Decompiler.jar` - `Ghidra/Framework/Docking/lib/Docking.jar` - `Ghidra/Framework/Generic/lib/Generic.jar` - `Ghidra/Framework/Project/lib/Project.jar` - `Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar` - `Ghidra/Framework/Utility/lib/Utility.jar` - `Ghidra/Framework/Gui/lib/Gui.jar` 2. Build with Maven by running: `mvn clean package assembly:single` The generated zip file includes the built Ghidra plugin and its resources. These files are required for Ghidra to recognize the new extension. - lib/GhidraMCP.jar - extensions.properties - Module.manifest ================================================ FILE: bridge_mcp_ghidra.py ================================================ # /// script # requires-python = ">=3.10" # dependencies = [ # "requests>=2,<3", # "mcp>=1.2.0,<2", # ] # /// import sys import requests import argparse import logging from urllib.parse import urljoin from mcp.server.fastmcp import FastMCP DEFAULT_GHIDRA_SERVER = "http://127.0.0.1:8080/" logger = logging.getLogger(__name__) mcp = FastMCP("ghidra-mcp") # Initialize ghidra_server_url with default value ghidra_server_url = DEFAULT_GHIDRA_SERVER def safe_get(endpoint: str, params: dict = None) -> list: """ Perform a GET request with optional query parameters. """ if params is None: params = {} url = urljoin(ghidra_server_url, endpoint) try: response = requests.get(url, params=params, timeout=5) response.encoding = 'utf-8' if response.ok: return response.text.splitlines() else: return [f"Error {response.status_code}: {response.text.strip()}"] except Exception as e: return [f"Request failed: {str(e)}"] def safe_post(endpoint: str, data: dict | str) -> str: try: url = urljoin(ghidra_server_url, endpoint) if isinstance(data, dict): response = requests.post(url, data=data, timeout=5) else: response = requests.post(url, data=data.encode("utf-8"), timeout=5) response.encoding = 'utf-8' if response.ok: return response.text.strip() else: return f"Error {response.status_code}: {response.text.strip()}" except Exception as e: return f"Request failed: {str(e)}" @mcp.tool() def list_methods(offset: int = 0, limit: int = 100) -> list: """ List all function names in the program with pagination. """ return safe_get("methods", {"offset": offset, "limit": limit}) @mcp.tool() def list_classes(offset: int = 0, limit: int = 100) -> list: """ List all namespace/class names in the program with pagination. """ return safe_get("classes", {"offset": offset, "limit": limit}) @mcp.tool() def decompile_function(name: str) -> str: """ Decompile a specific function by name and return the decompiled C code. """ return safe_post("decompile", name) @mcp.tool() def rename_function(old_name: str, new_name: str) -> str: """ Rename a function by its current name to a new user-defined name. """ return safe_post("renameFunction", {"oldName": old_name, "newName": new_name}) @mcp.tool() def rename_data(address: str, new_name: str) -> str: """ Rename a data label at the specified address. """ return safe_post("renameData", {"address": address, "newName": new_name}) @mcp.tool() def list_segments(offset: int = 0, limit: int = 100) -> list: """ List all memory segments in the program with pagination. """ return safe_get("segments", {"offset": offset, "limit": limit}) @mcp.tool() def list_imports(offset: int = 0, limit: int = 100) -> list: """ List imported symbols in the program with pagination. """ return safe_get("imports", {"offset": offset, "limit": limit}) @mcp.tool() def list_exports(offset: int = 0, limit: int = 100) -> list: """ List exported functions/symbols with pagination. """ return safe_get("exports", {"offset": offset, "limit": limit}) @mcp.tool() def list_namespaces(offset: int = 0, limit: int = 100) -> list: """ List all non-global namespaces in the program with pagination. """ return safe_get("namespaces", {"offset": offset, "limit": limit}) @mcp.tool() def list_data_items(offset: int = 0, limit: int = 100) -> list: """ List defined data labels and their values with pagination. """ return safe_get("data", {"offset": offset, "limit": limit}) @mcp.tool() def search_functions_by_name(query: str, offset: int = 0, limit: int = 100) -> list: """ Search for functions whose name contains the given substring. """ if not query: return ["Error: query string is required"] return safe_get("searchFunctions", {"query": query, "offset": offset, "limit": limit}) @mcp.tool() def rename_variable(function_name: str, old_name: str, new_name: str) -> str: """ Rename a local variable within a function. """ return safe_post("renameVariable", { "functionName": function_name, "oldName": old_name, "newName": new_name }) @mcp.tool() def get_function_by_address(address: str) -> str: """ Get a function by its address. """ return "\n".join(safe_get("get_function_by_address", {"address": address})) @mcp.tool() def get_current_address() -> str: """ Get the address currently selected by the user. """ return "\n".join(safe_get("get_current_address")) @mcp.tool() def get_current_function() -> str: """ Get the function currently selected by the user. """ return "\n".join(safe_get("get_current_function")) @mcp.tool() def list_functions() -> list: """ List all functions in the database. """ return safe_get("list_functions") @mcp.tool() def decompile_function_by_address(address: str) -> str: """ Decompile a function at the given address. """ return "\n".join(safe_get("decompile_function", {"address": address})) @mcp.tool() def disassemble_function(address: str) -> list: """ Get assembly code (address: instruction; comment) for a function. """ return safe_get("disassemble_function", {"address": address}) @mcp.tool() def set_decompiler_comment(address: str, comment: str) -> str: """ Set a comment for a given address in the function pseudocode. """ return safe_post("set_decompiler_comment", {"address": address, "comment": comment}) @mcp.tool() def set_disassembly_comment(address: str, comment: str) -> str: """ Set a comment for a given address in the function disassembly. """ return safe_post("set_disassembly_comment", {"address": address, "comment": comment}) @mcp.tool() def rename_function_by_address(function_address: str, new_name: str) -> str: """ Rename a function by its address. """ return safe_post("rename_function_by_address", {"function_address": function_address, "new_name": new_name}) @mcp.tool() def set_function_prototype(function_address: str, prototype: str) -> str: """ Set a function's prototype. """ return safe_post("set_function_prototype", {"function_address": function_address, "prototype": prototype}) @mcp.tool() def set_local_variable_type(function_address: str, variable_name: str, new_type: str) -> str: """ Set a local variable's type. """ return safe_post("set_local_variable_type", {"function_address": function_address, "variable_name": variable_name, "new_type": new_type}) @mcp.tool() def get_xrefs_to(address: str, offset: int = 0, limit: int = 100) -> list: """ Get all references to the specified address (xref to). Args: address: Target address in hex format (e.g. "0x1400010a0") offset: Pagination offset (default: 0) limit: Maximum number of references to return (default: 100) Returns: List of references to the specified address """ return safe_get("xrefs_to", {"address": address, "offset": offset, "limit": limit}) @mcp.tool() def get_xrefs_from(address: str, offset: int = 0, limit: int = 100) -> list: """ Get all references from the specified address (xref from). Args: address: Source address in hex format (e.g. "0x1400010a0") offset: Pagination offset (default: 0) limit: Maximum number of references to return (default: 100) Returns: List of references from the specified address """ return safe_get("xrefs_from", {"address": address, "offset": offset, "limit": limit}) @mcp.tool() def get_function_xrefs(name: str, offset: int = 0, limit: int = 100) -> list: """ Get all references to the specified function by name. Args: name: Function name to search for offset: Pagination offset (default: 0) limit: Maximum number of references to return (default: 100) Returns: List of references to the specified function """ return safe_get("function_xrefs", {"name": name, "offset": offset, "limit": limit}) @mcp.tool() def list_strings(offset: int = 0, limit: int = 2000, filter: str = None) -> list: """ List all defined strings in the program with their addresses. Args: offset: Pagination offset (default: 0) limit: Maximum number of strings to return (default: 2000) filter: Optional filter to match within string content Returns: List of strings with their addresses """ params = {"offset": offset, "limit": limit} if filter: params["filter"] = filter return safe_get("strings", params) def main(): parser = argparse.ArgumentParser(description="MCP server for Ghidra") parser.add_argument("--ghidra-server", type=str, default=DEFAULT_GHIDRA_SERVER, help=f"Ghidra server URL, default: {DEFAULT_GHIDRA_SERVER}") parser.add_argument("--mcp-host", type=str, default="127.0.0.1", help="Host to run MCP server on (only used for sse), default: 127.0.0.1") parser.add_argument("--mcp-port", type=int, help="Port to run MCP server on (only used for sse), default: 8081") parser.add_argument("--transport", type=str, default="stdio", choices=["stdio", "sse"], help="Transport protocol for MCP, default: stdio") args = parser.parse_args() # Use the global variable to ensure it's properly updated global ghidra_server_url if args.ghidra_server: ghidra_server_url = args.ghidra_server if args.transport == "sse": try: # Set up logging log_level = logging.INFO logging.basicConfig(level=log_level) logging.getLogger().setLevel(log_level) # Configure MCP settings mcp.settings.log_level = "INFO" if args.mcp_host: mcp.settings.host = args.mcp_host else: mcp.settings.host = "127.0.0.1" if args.mcp_port: mcp.settings.port = args.mcp_port else: mcp.settings.port = 8081 logger.info(f"Connecting to Ghidra server at {ghidra_server_url}") logger.info(f"Starting MCP server on http://{mcp.settings.host}:{mcp.settings.port}/sse") logger.info(f"Using transport: {args.transport}") mcp.run(transport="sse") except KeyboardInterrupt: logger.info("Server stopped by user") else: mcp.run() if __name__ == "__main__": main() ================================================ FILE: lib/.gitignore ================================================ * !.gitignore ================================================ FILE: pom.xml ================================================ 4.0.0 com.lauriewired GhidraMCP jar 1.0-SNAPSHOT GhidraMCP http://maven.apache.org ghidra Generic 11.3.2 system ${project.basedir}/lib/Generic.jar ghidra SoftwareModeling 11.3.2 system ${project.basedir}/lib/SoftwareModeling.jar ghidra Project 11.3.2 system ${project.basedir}/lib/Project.jar ghidra Docking 11.3.2 system ${project.basedir}/lib/Docking.jar ghidra Decompiler 11.3.2 system ${project.basedir}/lib/Decompiler.jar ghidra Utility 11.3.2 system ${project.basedir}/lib/Utility.jar ghidra Base 11.3.2 system ${project.basedir}/lib/Base.jar ghidra Gui 11.3.2 system ${project.basedir}/lib/Gui.jar junit junit 3.8.1 test maven-jar-plugin 3.2.2 src/main/resources/META-INF/MANIFEST.MF GhidraMCP **/App.class ${project.build.directory} org.apache.maven.plugins maven-assembly-plugin 3.3.0 src/assembly/ghidra-extension.xml GhidraMCP-${project.version} false make-assembly package single org.apache.maven.plugins maven-dependency-plugin 3.1.2 copy-dependencies prepare-package copy-dependencies ${project.build.directory}/lib runtime ================================================ FILE: requirements.txt ================================================ mcp==1.5.0 requests==2.32.3 ================================================ FILE: src/assembly/ghidra-extension.xml ================================================ ghidra-extension zip false src/main/resources extension.properties Module.manifest GhidraMCP ${project.build.directory} GhidraMCP.jar GhidraMCP/lib ================================================ FILE: src/main/java/com/lauriewired/GhidraMCPPlugin.java ================================================ package com.lauriewired; import ghidra.framework.plugintool.Plugin; import ghidra.framework.plugintool.PluginTool; import ghidra.program.model.address.Address; import ghidra.program.model.address.GlobalNamespace; import ghidra.program.model.listing.*; import ghidra.program.model.mem.MemoryBlock; import ghidra.program.model.symbol.*; import ghidra.program.model.symbol.ReferenceManager; import ghidra.program.model.symbol.Reference; import ghidra.program.model.symbol.ReferenceIterator; import ghidra.program.model.symbol.RefType; import ghidra.program.model.pcode.HighFunction; import ghidra.program.model.pcode.HighSymbol; import ghidra.program.model.pcode.LocalSymbolMap; import ghidra.program.model.pcode.HighFunctionDBUtil; import ghidra.program.model.pcode.HighFunctionDBUtil.ReturnCommitOption; import ghidra.app.decompiler.DecompInterface; import ghidra.app.decompiler.DecompileResults; import ghidra.app.plugin.PluginCategoryNames; import ghidra.app.services.CodeViewerService; import ghidra.app.services.ProgramManager; import ghidra.app.util.PseudoDisassembler; import ghidra.app.cmd.function.SetVariableNameCmd; import ghidra.program.model.symbol.SourceType; import ghidra.program.model.listing.LocalVariableImpl; import ghidra.program.model.listing.ParameterImpl; import ghidra.util.exception.DuplicateNameException; import ghidra.util.exception.InvalidInputException; import ghidra.framework.plugintool.PluginInfo; import ghidra.framework.plugintool.util.PluginStatus; import ghidra.program.util.ProgramLocation; import ghidra.util.Msg; import ghidra.util.task.ConsoleTaskMonitor; import ghidra.util.task.TaskMonitor; import ghidra.program.model.pcode.HighVariable; import ghidra.program.model.pcode.Varnode; import ghidra.program.model.data.DataType; import ghidra.program.model.data.DataTypeManager; import ghidra.program.model.data.PointerDataType; import ghidra.program.model.data.Undefined1DataType; import ghidra.program.model.listing.Variable; import ghidra.app.decompiler.component.DecompilerUtils; import ghidra.app.decompiler.ClangToken; import ghidra.framework.options.Options; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpServer; import javax.swing.SwingUtilities; import java.io.IOException; import java.io.OutputStream; import java.lang.reflect.InvocationTargetException; import java.net.InetSocketAddress; import java.net.URLDecoder; import java.nio.charset.StandardCharsets; import java.util.*; import java.util.concurrent.atomic.AtomicBoolean; @PluginInfo( status = PluginStatus.RELEASED, packageName = ghidra.app.DeveloperPluginPackage.NAME, category = PluginCategoryNames.ANALYSIS, shortDescription = "HTTP server plugin", description = "Starts an embedded HTTP server to expose program data. Port configurable via Tool Options." ) public class GhidraMCPPlugin extends Plugin { private HttpServer server; private static final String OPTION_CATEGORY_NAME = "GhidraMCP HTTP Server"; private static final String PORT_OPTION_NAME = "Server Port"; private static final int DEFAULT_PORT = 8080; public GhidraMCPPlugin(PluginTool tool) { super(tool); Msg.info(this, "GhidraMCPPlugin loading..."); // Register the configuration option Options options = tool.getOptions(OPTION_CATEGORY_NAME); options.registerOption(PORT_OPTION_NAME, DEFAULT_PORT, null, // No help location for now "The network port number the embedded HTTP server will listen on. " + "Requires Ghidra restart or plugin reload to take effect after changing."); try { startServer(); } catch (IOException e) { Msg.error(this, "Failed to start HTTP server", e); } Msg.info(this, "GhidraMCPPlugin loaded!"); } private void startServer() throws IOException { // Read the configured port Options options = tool.getOptions(OPTION_CATEGORY_NAME); int port = options.getInt(PORT_OPTION_NAME, DEFAULT_PORT); // Stop existing server if running (e.g., if plugin is reloaded) if (server != null) { Msg.info(this, "Stopping existing HTTP server before starting new one."); server.stop(0); server = null; } server = HttpServer.create(new InetSocketAddress(port), 0); // Each listing endpoint uses offset & limit from query params: server.createContext("/methods", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, getAllFunctionNames(offset, limit)); }); server.createContext("/classes", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, getAllClassNames(offset, limit)); }); server.createContext("/decompile", exchange -> { String name = new String(exchange.getRequestBody().readAllBytes(), StandardCharsets.UTF_8); sendResponse(exchange, decompileFunctionByName(name)); }); server.createContext("/renameFunction", exchange -> { Map params = parsePostParams(exchange); String response = renameFunction(params.get("oldName"), params.get("newName")) ? "Renamed successfully" : "Rename failed"; sendResponse(exchange, response); }); server.createContext("/renameData", exchange -> { Map params = parsePostParams(exchange); renameDataAtAddress(params.get("address"), params.get("newName")); sendResponse(exchange, "Rename data attempted"); }); server.createContext("/renameVariable", exchange -> { Map params = parsePostParams(exchange); String functionName = params.get("functionName"); String oldName = params.get("oldName"); String newName = params.get("newName"); String result = renameVariableInFunction(functionName, oldName, newName); sendResponse(exchange, result); }); server.createContext("/segments", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, listSegments(offset, limit)); }); server.createContext("/imports", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, listImports(offset, limit)); }); server.createContext("/exports", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, listExports(offset, limit)); }); server.createContext("/namespaces", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, listNamespaces(offset, limit)); }); server.createContext("/data", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, listDefinedData(offset, limit)); }); server.createContext("/searchFunctions", exchange -> { Map qparams = parseQueryParams(exchange); String searchTerm = qparams.get("query"); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, searchFunctionsByName(searchTerm, offset, limit)); }); // New API endpoints based on requirements server.createContext("/get_function_by_address", exchange -> { Map qparams = parseQueryParams(exchange); String address = qparams.get("address"); sendResponse(exchange, getFunctionByAddress(address)); }); server.createContext("/get_current_address", exchange -> { sendResponse(exchange, getCurrentAddress()); }); server.createContext("/get_current_function", exchange -> { sendResponse(exchange, getCurrentFunction()); }); server.createContext("/list_functions", exchange -> { sendResponse(exchange, listFunctions()); }); server.createContext("/decompile_function", exchange -> { Map qparams = parseQueryParams(exchange); String address = qparams.get("address"); sendResponse(exchange, decompileFunctionByAddress(address)); }); server.createContext("/disassemble_function", exchange -> { Map qparams = parseQueryParams(exchange); String address = qparams.get("address"); sendResponse(exchange, disassembleFunction(address)); }); server.createContext("/set_decompiler_comment", exchange -> { Map params = parsePostParams(exchange); String address = params.get("address"); String comment = params.get("comment"); boolean success = setDecompilerComment(address, comment); sendResponse(exchange, success ? "Comment set successfully" : "Failed to set comment"); }); server.createContext("/set_disassembly_comment", exchange -> { Map params = parsePostParams(exchange); String address = params.get("address"); String comment = params.get("comment"); boolean success = setDisassemblyComment(address, comment); sendResponse(exchange, success ? "Comment set successfully" : "Failed to set comment"); }); server.createContext("/rename_function_by_address", exchange -> { Map params = parsePostParams(exchange); String functionAddress = params.get("function_address"); String newName = params.get("new_name"); boolean success = renameFunctionByAddress(functionAddress, newName); sendResponse(exchange, success ? "Function renamed successfully" : "Failed to rename function"); }); server.createContext("/set_function_prototype", exchange -> { Map params = parsePostParams(exchange); String functionAddress = params.get("function_address"); String prototype = params.get("prototype"); // Call the set prototype function and get detailed result PrototypeResult result = setFunctionPrototype(functionAddress, prototype); if (result.isSuccess()) { // Even with successful operations, include any warning messages for debugging String successMsg = "Function prototype set successfully"; if (!result.getErrorMessage().isEmpty()) { successMsg += "\n\nWarnings/Debug Info:\n" + result.getErrorMessage(); } sendResponse(exchange, successMsg); } else { // Return the detailed error message to the client sendResponse(exchange, "Failed to set function prototype: " + result.getErrorMessage()); } }); server.createContext("/set_local_variable_type", exchange -> { Map params = parsePostParams(exchange); String functionAddress = params.get("function_address"); String variableName = params.get("variable_name"); String newType = params.get("new_type"); // Capture detailed information about setting the type StringBuilder responseMsg = new StringBuilder(); responseMsg.append("Setting variable type: ").append(variableName) .append(" to ").append(newType) .append(" in function at ").append(functionAddress).append("\n\n"); // Attempt to find the data type in various categories Program program = getCurrentProgram(); if (program != null) { DataTypeManager dtm = program.getDataTypeManager(); DataType directType = findDataTypeByNameInAllCategories(dtm, newType); if (directType != null) { responseMsg.append("Found type: ").append(directType.getPathName()).append("\n"); } else if (newType.startsWith("P") && newType.length() > 1) { String baseTypeName = newType.substring(1); DataType baseType = findDataTypeByNameInAllCategories(dtm, baseTypeName); if (baseType != null) { responseMsg.append("Found base type for pointer: ").append(baseType.getPathName()).append("\n"); } else { responseMsg.append("Base type not found for pointer: ").append(baseTypeName).append("\n"); } } else { responseMsg.append("Type not found directly: ").append(newType).append("\n"); } } // Try to set the type boolean success = setLocalVariableType(functionAddress, variableName, newType); String successMsg = success ? "Variable type set successfully" : "Failed to set variable type"; responseMsg.append("\nResult: ").append(successMsg); sendResponse(exchange, responseMsg.toString()); }); server.createContext("/xrefs_to", exchange -> { Map qparams = parseQueryParams(exchange); String address = qparams.get("address"); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, getXrefsTo(address, offset, limit)); }); server.createContext("/xrefs_from", exchange -> { Map qparams = parseQueryParams(exchange); String address = qparams.get("address"); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, getXrefsFrom(address, offset, limit)); }); server.createContext("/function_xrefs", exchange -> { Map qparams = parseQueryParams(exchange); String name = qparams.get("name"); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); sendResponse(exchange, getFunctionXrefs(name, offset, limit)); }); server.createContext("/strings", exchange -> { Map qparams = parseQueryParams(exchange); int offset = parseIntOrDefault(qparams.get("offset"), 0); int limit = parseIntOrDefault(qparams.get("limit"), 100); String filter = qparams.get("filter"); sendResponse(exchange, listDefinedStrings(offset, limit, filter)); }); server.setExecutor(null); new Thread(() -> { try { server.start(); Msg.info(this, "GhidraMCP HTTP server started on port " + port); } catch (Exception e) { Msg.error(this, "Failed to start HTTP server on port " + port + ". Port might be in use.", e); server = null; // Ensure server isn't considered running } }, "GhidraMCP-HTTP-Server").start(); } // ---------------------------------------------------------------------------------- // Pagination-aware listing methods // ---------------------------------------------------------------------------------- private String getAllFunctionNames(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; List names = new ArrayList<>(); for (Function f : program.getFunctionManager().getFunctions(true)) { names.add(f.getName()); } return paginateList(names, offset, limit); } private String getAllClassNames(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; Set classNames = new HashSet<>(); for (Symbol symbol : program.getSymbolTable().getAllSymbols(true)) { Namespace ns = symbol.getParentNamespace(); if (ns != null && !ns.isGlobal()) { classNames.add(ns.getName()); } } // Convert set to list for pagination List sorted = new ArrayList<>(classNames); Collections.sort(sorted); return paginateList(sorted, offset, limit); } private String listSegments(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; List lines = new ArrayList<>(); for (MemoryBlock block : program.getMemory().getBlocks()) { lines.add(String.format("%s: %s - %s", block.getName(), block.getStart(), block.getEnd())); } return paginateList(lines, offset, limit); } private String listImports(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; List lines = new ArrayList<>(); for (Symbol symbol : program.getSymbolTable().getExternalSymbols()) { lines.add(symbol.getName() + " -> " + symbol.getAddress()); } return paginateList(lines, offset, limit); } private String listExports(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; SymbolTable table = program.getSymbolTable(); SymbolIterator it = table.getAllSymbols(true); List lines = new ArrayList<>(); while (it.hasNext()) { Symbol s = it.next(); // On older Ghidra, "export" is recognized via isExternalEntryPoint() if (s.isExternalEntryPoint()) { lines.add(s.getName() + " -> " + s.getAddress()); } } return paginateList(lines, offset, limit); } private String listNamespaces(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; Set namespaces = new HashSet<>(); for (Symbol symbol : program.getSymbolTable().getAllSymbols(true)) { Namespace ns = symbol.getParentNamespace(); if (ns != null && !(ns instanceof GlobalNamespace)) { namespaces.add(ns.getName()); } } List sorted = new ArrayList<>(namespaces); Collections.sort(sorted); return paginateList(sorted, offset, limit); } private String listDefinedData(int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; List lines = new ArrayList<>(); for (MemoryBlock block : program.getMemory().getBlocks()) { DataIterator it = program.getListing().getDefinedData(block.getStart(), true); while (it.hasNext()) { Data data = it.next(); if (block.contains(data.getAddress())) { String label = data.getLabel() != null ? data.getLabel() : "(unnamed)"; String valRepr = data.getDefaultValueRepresentation(); lines.add(String.format("%s: %s = %s", data.getAddress(), escapeNonAscii(label), escapeNonAscii(valRepr) )); } } } return paginateList(lines, offset, limit); } private String searchFunctionsByName(String searchTerm, int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (searchTerm == null || searchTerm.isEmpty()) return "Search term is required"; List matches = new ArrayList<>(); for (Function func : program.getFunctionManager().getFunctions(true)) { String name = func.getName(); // simple substring match if (name.toLowerCase().contains(searchTerm.toLowerCase())) { matches.add(String.format("%s @ %s", name, func.getEntryPoint())); } } Collections.sort(matches); if (matches.isEmpty()) { return "No functions matching '" + searchTerm + "'"; } return paginateList(matches, offset, limit); } // ---------------------------------------------------------------------------------- // Logic for rename, decompile, etc. // ---------------------------------------------------------------------------------- private String decompileFunctionByName(String name) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; DecompInterface decomp = new DecompInterface(); decomp.openProgram(program); for (Function func : program.getFunctionManager().getFunctions(true)) { if (func.getName().equals(name)) { DecompileResults result = decomp.decompileFunction(func, 30, new ConsoleTaskMonitor()); if (result != null && result.decompileCompleted()) { return result.getDecompiledFunction().getC(); } else { return "Decompilation failed"; } } } return "Function not found"; } private boolean renameFunction(String oldName, String newName) { Program program = getCurrentProgram(); if (program == null) return false; AtomicBoolean successFlag = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> { int tx = program.startTransaction("Rename function via HTTP"); try { for (Function func : program.getFunctionManager().getFunctions(true)) { if (func.getName().equals(oldName)) { func.setName(newName, SourceType.USER_DEFINED); successFlag.set(true); break; } } } catch (Exception e) { Msg.error(this, "Error renaming function", e); } finally { successFlag.set(program.endTransaction(tx, successFlag.get())); } }); } catch (InterruptedException | InvocationTargetException e) { Msg.error(this, "Failed to execute rename on Swing thread", e); } return successFlag.get(); } private void renameDataAtAddress(String addressStr, String newName) { Program program = getCurrentProgram(); if (program == null) return; try { SwingUtilities.invokeAndWait(() -> { int tx = program.startTransaction("Rename data"); try { Address addr = program.getAddressFactory().getAddress(addressStr); Listing listing = program.getListing(); Data data = listing.getDefinedDataAt(addr); if (data != null) { SymbolTable symTable = program.getSymbolTable(); Symbol symbol = symTable.getPrimarySymbol(addr); if (symbol != null) { symbol.setName(newName, SourceType.USER_DEFINED); } else { symTable.createLabel(addr, newName, SourceType.USER_DEFINED); } } } catch (Exception e) { Msg.error(this, "Rename data error", e); } finally { program.endTransaction(tx, true); } }); } catch (InterruptedException | InvocationTargetException e) { Msg.error(this, "Failed to execute rename data on Swing thread", e); } } private String renameVariableInFunction(String functionName, String oldVarName, String newVarName) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; DecompInterface decomp = new DecompInterface(); decomp.openProgram(program); Function func = null; for (Function f : program.getFunctionManager().getFunctions(true)) { if (f.getName().equals(functionName)) { func = f; break; } } if (func == null) { return "Function not found"; } DecompileResults result = decomp.decompileFunction(func, 30, new ConsoleTaskMonitor()); if (result == null || !result.decompileCompleted()) { return "Decompilation failed"; } HighFunction highFunction = result.getHighFunction(); if (highFunction == null) { return "Decompilation failed (no high function)"; } LocalSymbolMap localSymbolMap = highFunction.getLocalSymbolMap(); if (localSymbolMap == null) { return "Decompilation failed (no local symbol map)"; } HighSymbol highSymbol = null; Iterator symbols = localSymbolMap.getSymbols(); while (symbols.hasNext()) { HighSymbol symbol = symbols.next(); String symbolName = symbol.getName(); if (symbolName.equals(oldVarName)) { highSymbol = symbol; } if (symbolName.equals(newVarName)) { return "Error: A variable with name '" + newVarName + "' already exists in this function"; } } if (highSymbol == null) { return "Variable not found"; } boolean commitRequired = checkFullCommit(highSymbol, highFunction); final HighSymbol finalHighSymbol = highSymbol; final Function finalFunction = func; AtomicBoolean successFlag = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> { int tx = program.startTransaction("Rename variable"); try { if (commitRequired) { HighFunctionDBUtil.commitParamsToDatabase(highFunction, false, ReturnCommitOption.NO_COMMIT, finalFunction.getSignatureSource()); } HighFunctionDBUtil.updateDBVariable( finalHighSymbol, newVarName, null, SourceType.USER_DEFINED ); successFlag.set(true); } catch (Exception e) { Msg.error(this, "Failed to rename variable", e); } finally { successFlag.set(program.endTransaction(tx, true)); } }); } catch (InterruptedException | InvocationTargetException e) { String errorMsg = "Failed to execute rename on Swing thread: " + e.getMessage(); Msg.error(this, errorMsg, e); return errorMsg; } return successFlag.get() ? "Variable renamed" : "Failed to rename variable"; } /** * Copied from AbstractDecompilerAction.checkFullCommit, it's protected. * Compare the given HighFunction's idea of the prototype with the Function's idea. * Return true if there is a difference. If a specific symbol is being changed, * it can be passed in to check whether or not the prototype is being affected. * @param highSymbol (if not null) is the symbol being modified * @param hfunction is the given HighFunction * @return true if there is a difference (and a full commit is required) */ protected static boolean checkFullCommit(HighSymbol highSymbol, HighFunction hfunction) { if (highSymbol != null && !highSymbol.isParameter()) { return false; } Function function = hfunction.getFunction(); Parameter[] parameters = function.getParameters(); LocalSymbolMap localSymbolMap = hfunction.getLocalSymbolMap(); int numParams = localSymbolMap.getNumParams(); if (numParams != parameters.length) { return true; } for (int i = 0; i < numParams; i++) { HighSymbol param = localSymbolMap.getParamSymbol(i); if (param.getCategoryIndex() != i) { return true; } VariableStorage storage = param.getStorage(); // Don't compare using the equals method so that DynamicVariableStorage can match if (0 != storage.compareTo(parameters[i].getVariableStorage())) { return true; } } return false; } // ---------------------------------------------------------------------------------- // New methods to implement the new functionalities // ---------------------------------------------------------------------------------- /** * Get function by address */ private String getFunctionByAddress(String addressStr) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; try { Address addr = program.getAddressFactory().getAddress(addressStr); Function func = program.getFunctionManager().getFunctionAt(addr); if (func == null) return "No function found at address " + addressStr; return String.format("Function: %s at %s\nSignature: %s\nEntry: %s\nBody: %s - %s", func.getName(), func.getEntryPoint(), func.getSignature(), func.getEntryPoint(), func.getBody().getMinAddress(), func.getBody().getMaxAddress()); } catch (Exception e) { return "Error getting function: " + e.getMessage(); } } /** * Get current address selected in Ghidra GUI */ private String getCurrentAddress() { CodeViewerService service = tool.getService(CodeViewerService.class); if (service == null) return "Code viewer service not available"; ProgramLocation location = service.getCurrentLocation(); return (location != null) ? location.getAddress().toString() : "No current location"; } /** * Get current function selected in Ghidra GUI */ private String getCurrentFunction() { CodeViewerService service = tool.getService(CodeViewerService.class); if (service == null) return "Code viewer service not available"; ProgramLocation location = service.getCurrentLocation(); if (location == null) return "No current location"; Program program = getCurrentProgram(); if (program == null) return "No program loaded"; Function func = program.getFunctionManager().getFunctionContaining(location.getAddress()); if (func == null) return "No function at current location: " + location.getAddress(); return String.format("Function: %s at %s\nSignature: %s", func.getName(), func.getEntryPoint(), func.getSignature()); } /** * List all functions in the database */ private String listFunctions() { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; StringBuilder result = new StringBuilder(); for (Function func : program.getFunctionManager().getFunctions(true)) { result.append(String.format("%s at %s\n", func.getName(), func.getEntryPoint())); } return result.toString(); } /** * Gets a function at the given address or containing the address * @return the function or null if not found */ private Function getFunctionForAddress(Program program, Address addr) { Function func = program.getFunctionManager().getFunctionAt(addr); if (func == null) { func = program.getFunctionManager().getFunctionContaining(addr); } return func; } /** * Decompile a function at the given address */ private String decompileFunctionByAddress(String addressStr) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; try { Address addr = program.getAddressFactory().getAddress(addressStr); Function func = getFunctionForAddress(program, addr); if (func == null) return "No function found at or containing address " + addressStr; DecompInterface decomp = new DecompInterface(); decomp.openProgram(program); DecompileResults result = decomp.decompileFunction(func, 30, new ConsoleTaskMonitor()); return (result != null && result.decompileCompleted()) ? result.getDecompiledFunction().getC() : "Decompilation failed"; } catch (Exception e) { return "Error decompiling function: " + e.getMessage(); } } /** * Get assembly code for a function */ private String disassembleFunction(String addressStr) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; try { Address addr = program.getAddressFactory().getAddress(addressStr); Function func = getFunctionForAddress(program, addr); if (func == null) return "No function found at or containing address " + addressStr; StringBuilder result = new StringBuilder(); Listing listing = program.getListing(); Address start = func.getEntryPoint(); Address end = func.getBody().getMaxAddress(); InstructionIterator instructions = listing.getInstructions(start, true); while (instructions.hasNext()) { Instruction instr = instructions.next(); if (instr.getAddress().compareTo(end) > 0) { break; // Stop if we've gone past the end of the function } String comment = listing.getComment(CodeUnit.EOL_COMMENT, instr.getAddress()); comment = (comment != null) ? "; " + comment : ""; result.append(String.format("%s: %s %s\n", instr.getAddress(), instr.toString(), comment)); } return result.toString(); } catch (Exception e) { return "Error disassembling function: " + e.getMessage(); } } /** * Set a comment using the specified comment type (PRE_COMMENT or EOL_COMMENT) */ private boolean setCommentAtAddress(String addressStr, String comment, int commentType, String transactionName) { Program program = getCurrentProgram(); if (program == null) return false; if (addressStr == null || addressStr.isEmpty() || comment == null) return false; AtomicBoolean success = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> { int tx = program.startTransaction(transactionName); try { Address addr = program.getAddressFactory().getAddress(addressStr); program.getListing().setComment(addr, commentType, comment); success.set(true); } catch (Exception e) { Msg.error(this, "Error setting " + transactionName.toLowerCase(), e); } finally { success.set(program.endTransaction(tx, success.get())); } }); } catch (InterruptedException | InvocationTargetException e) { Msg.error(this, "Failed to execute " + transactionName.toLowerCase() + " on Swing thread", e); } return success.get(); } /** * Set a comment for a given address in the function pseudocode */ private boolean setDecompilerComment(String addressStr, String comment) { return setCommentAtAddress(addressStr, comment, CodeUnit.PRE_COMMENT, "Set decompiler comment"); } /** * Set a comment for a given address in the function disassembly */ private boolean setDisassemblyComment(String addressStr, String comment) { return setCommentAtAddress(addressStr, comment, CodeUnit.EOL_COMMENT, "Set disassembly comment"); } /** * Class to hold the result of a prototype setting operation */ private static class PrototypeResult { private final boolean success; private final String errorMessage; public PrototypeResult(boolean success, String errorMessage) { this.success = success; this.errorMessage = errorMessage; } public boolean isSuccess() { return success; } public String getErrorMessage() { return errorMessage; } } /** * Rename a function by its address */ private boolean renameFunctionByAddress(String functionAddrStr, String newName) { Program program = getCurrentProgram(); if (program == null) return false; if (functionAddrStr == null || functionAddrStr.isEmpty() || newName == null || newName.isEmpty()) { return false; } AtomicBoolean success = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> { performFunctionRename(program, functionAddrStr, newName, success); }); } catch (InterruptedException | InvocationTargetException e) { Msg.error(this, "Failed to execute rename function on Swing thread", e); } return success.get(); } /** * Helper method to perform the actual function rename within a transaction */ private void performFunctionRename(Program program, String functionAddrStr, String newName, AtomicBoolean success) { int tx = program.startTransaction("Rename function by address"); try { Address addr = program.getAddressFactory().getAddress(functionAddrStr); Function func = getFunctionForAddress(program, addr); if (func == null) { Msg.error(this, "Could not find function at address: " + functionAddrStr); return; } func.setName(newName, SourceType.USER_DEFINED); success.set(true); } catch (Exception e) { Msg.error(this, "Error renaming function by address", e); } finally { program.endTransaction(tx, success.get()); } } /** * Set a function's prototype with proper error handling using ApplyFunctionSignatureCmd */ private PrototypeResult setFunctionPrototype(String functionAddrStr, String prototype) { // Input validation Program program = getCurrentProgram(); if (program == null) return new PrototypeResult(false, "No program loaded"); if (functionAddrStr == null || functionAddrStr.isEmpty()) { return new PrototypeResult(false, "Function address is required"); } if (prototype == null || prototype.isEmpty()) { return new PrototypeResult(false, "Function prototype is required"); } final StringBuilder errorMessage = new StringBuilder(); final AtomicBoolean success = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> applyFunctionPrototype(program, functionAddrStr, prototype, success, errorMessage)); } catch (InterruptedException | InvocationTargetException e) { String msg = "Failed to set function prototype on Swing thread: " + e.getMessage(); errorMessage.append(msg); Msg.error(this, msg, e); } return new PrototypeResult(success.get(), errorMessage.toString()); } /** * Helper method that applies the function prototype within a transaction */ private void applyFunctionPrototype(Program program, String functionAddrStr, String prototype, AtomicBoolean success, StringBuilder errorMessage) { try { // Get the address and function Address addr = program.getAddressFactory().getAddress(functionAddrStr); Function func = getFunctionForAddress(program, addr); if (func == null) { String msg = "Could not find function at address: " + functionAddrStr; errorMessage.append(msg); Msg.error(this, msg); return; } Msg.info(this, "Setting prototype for function " + func.getName() + ": " + prototype); // Store original prototype as a comment for reference addPrototypeComment(program, func, prototype); // Use ApplyFunctionSignatureCmd to parse and apply the signature parseFunctionSignatureAndApply(program, addr, prototype, success, errorMessage); } catch (Exception e) { String msg = "Error setting function prototype: " + e.getMessage(); errorMessage.append(msg); Msg.error(this, msg, e); } } /** * Add a comment showing the prototype being set */ private void addPrototypeComment(Program program, Function func, String prototype) { int txComment = program.startTransaction("Add prototype comment"); try { program.getListing().setComment( func.getEntryPoint(), CodeUnit.PLATE_COMMENT, "Setting prototype: " + prototype ); } finally { program.endTransaction(txComment, true); } } /** * Parse and apply the function signature with error handling */ private void parseFunctionSignatureAndApply(Program program, Address addr, String prototype, AtomicBoolean success, StringBuilder errorMessage) { // Use ApplyFunctionSignatureCmd to parse and apply the signature int txProto = program.startTransaction("Set function prototype"); try { // Get data type manager DataTypeManager dtm = program.getDataTypeManager(); // Get data type manager service ghidra.app.services.DataTypeManagerService dtms = tool.getService(ghidra.app.services.DataTypeManagerService.class); // Create function signature parser ghidra.app.util.parser.FunctionSignatureParser parser = new ghidra.app.util.parser.FunctionSignatureParser(dtm, dtms); // Parse the prototype into a function signature ghidra.program.model.data.FunctionDefinitionDataType sig = parser.parse(null, prototype); if (sig == null) { String msg = "Failed to parse function prototype"; errorMessage.append(msg); Msg.error(this, msg); return; } // Create and apply the command ghidra.app.cmd.function.ApplyFunctionSignatureCmd cmd = new ghidra.app.cmd.function.ApplyFunctionSignatureCmd( addr, sig, SourceType.USER_DEFINED); // Apply the command to the program boolean cmdResult = cmd.applyTo(program, new ConsoleTaskMonitor()); if (cmdResult) { success.set(true); Msg.info(this, "Successfully applied function signature"); } else { String msg = "Command failed: " + cmd.getStatusMsg(); errorMessage.append(msg); Msg.error(this, msg); } } catch (Exception e) { String msg = "Error applying function signature: " + e.getMessage(); errorMessage.append(msg); Msg.error(this, msg, e); } finally { program.endTransaction(txProto, success.get()); } } /** * Set a local variable's type using HighFunctionDBUtil.updateDBVariable */ private boolean setLocalVariableType(String functionAddrStr, String variableName, String newType) { // Input validation Program program = getCurrentProgram(); if (program == null) return false; if (functionAddrStr == null || functionAddrStr.isEmpty() || variableName == null || variableName.isEmpty() || newType == null || newType.isEmpty()) { return false; } AtomicBoolean success = new AtomicBoolean(false); try { SwingUtilities.invokeAndWait(() -> applyVariableType(program, functionAddrStr, variableName, newType, success)); } catch (InterruptedException | InvocationTargetException e) { Msg.error(this, "Failed to execute set variable type on Swing thread", e); } return success.get(); } /** * Helper method that performs the actual variable type change */ private void applyVariableType(Program program, String functionAddrStr, String variableName, String newType, AtomicBoolean success) { try { // Find the function Address addr = program.getAddressFactory().getAddress(functionAddrStr); Function func = getFunctionForAddress(program, addr); if (func == null) { Msg.error(this, "Could not find function at address: " + functionAddrStr); return; } DecompileResults results = decompileFunction(func, program); if (results == null || !results.decompileCompleted()) { return; } ghidra.program.model.pcode.HighFunction highFunction = results.getHighFunction(); if (highFunction == null) { Msg.error(this, "No high function available"); return; } // Find the symbol by name HighSymbol symbol = findSymbolByName(highFunction, variableName); if (symbol == null) { Msg.error(this, "Could not find variable '" + variableName + "' in decompiled function"); return; } // Get high variable HighVariable highVar = symbol.getHighVariable(); if (highVar == null) { Msg.error(this, "No HighVariable found for symbol: " + variableName); return; } Msg.info(this, "Found high variable for: " + variableName + " with current type " + highVar.getDataType().getName()); // Find the data type DataTypeManager dtm = program.getDataTypeManager(); DataType dataType = resolveDataType(dtm, newType); if (dataType == null) { Msg.error(this, "Could not resolve data type: " + newType); return; } Msg.info(this, "Using data type: " + dataType.getName() + " for variable " + variableName); // Apply the type change in a transaction updateVariableType(program, symbol, dataType, success); } catch (Exception e) { Msg.error(this, "Error setting variable type: " + e.getMessage()); } } /** * Find a high symbol by name in the given high function */ private HighSymbol findSymbolByName(ghidra.program.model.pcode.HighFunction highFunction, String variableName) { Iterator symbols = highFunction.getLocalSymbolMap().getSymbols(); while (symbols.hasNext()) { HighSymbol s = symbols.next(); if (s.getName().equals(variableName)) { return s; } } return null; } /** * Decompile a function and return the results */ private DecompileResults decompileFunction(Function func, Program program) { // Set up decompiler for accessing the decompiled function DecompInterface decomp = new DecompInterface(); decomp.openProgram(program); decomp.setSimplificationStyle("decompile"); // Full decompilation // Decompile the function DecompileResults results = decomp.decompileFunction(func, 60, new ConsoleTaskMonitor()); if (!results.decompileCompleted()) { Msg.error(this, "Could not decompile function: " + results.getErrorMessage()); return null; } return results; } /** * Apply the type update in a transaction */ private void updateVariableType(Program program, HighSymbol symbol, DataType dataType, AtomicBoolean success) { int tx = program.startTransaction("Set variable type"); try { // Use HighFunctionDBUtil to update the variable with the new type HighFunctionDBUtil.updateDBVariable( symbol, // The high symbol to modify symbol.getName(), // Keep original name dataType, // The new data type SourceType.USER_DEFINED // Mark as user-defined ); success.set(true); Msg.info(this, "Successfully set variable type using HighFunctionDBUtil"); } catch (Exception e) { Msg.error(this, "Error setting variable type: " + e.getMessage()); } finally { program.endTransaction(tx, success.get()); } } /** * Get all references to a specific address (xref to) */ private String getXrefsTo(String addressStr, int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; try { Address addr = program.getAddressFactory().getAddress(addressStr); ReferenceManager refManager = program.getReferenceManager(); ReferenceIterator refIter = refManager.getReferencesTo(addr); List refs = new ArrayList<>(); while (refIter.hasNext()) { Reference ref = refIter.next(); Address fromAddr = ref.getFromAddress(); RefType refType = ref.getReferenceType(); Function fromFunc = program.getFunctionManager().getFunctionContaining(fromAddr); String funcInfo = (fromFunc != null) ? " in " + fromFunc.getName() : ""; refs.add(String.format("From %s%s [%s]", fromAddr, funcInfo, refType.getName())); } return paginateList(refs, offset, limit); } catch (Exception e) { return "Error getting references to address: " + e.getMessage(); } } /** * Get all references from a specific address (xref from) */ private String getXrefsFrom(String addressStr, int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (addressStr == null || addressStr.isEmpty()) return "Address is required"; try { Address addr = program.getAddressFactory().getAddress(addressStr); ReferenceManager refManager = program.getReferenceManager(); Reference[] references = refManager.getReferencesFrom(addr); List refs = new ArrayList<>(); for (Reference ref : references) { Address toAddr = ref.getToAddress(); RefType refType = ref.getReferenceType(); String targetInfo = ""; Function toFunc = program.getFunctionManager().getFunctionAt(toAddr); if (toFunc != null) { targetInfo = " to function " + toFunc.getName(); } else { Data data = program.getListing().getDataAt(toAddr); if (data != null) { targetInfo = " to data " + (data.getLabel() != null ? data.getLabel() : data.getPathName()); } } refs.add(String.format("To %s%s [%s]", toAddr, targetInfo, refType.getName())); } return paginateList(refs, offset, limit); } catch (Exception e) { return "Error getting references from address: " + e.getMessage(); } } /** * Get all references to a specific function by name */ private String getFunctionXrefs(String functionName, int offset, int limit) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; if (functionName == null || functionName.isEmpty()) return "Function name is required"; try { List refs = new ArrayList<>(); FunctionManager funcManager = program.getFunctionManager(); for (Function function : funcManager.getFunctions(true)) { if (function.getName().equals(functionName)) { Address entryPoint = function.getEntryPoint(); ReferenceIterator refIter = program.getReferenceManager().getReferencesTo(entryPoint); while (refIter.hasNext()) { Reference ref = refIter.next(); Address fromAddr = ref.getFromAddress(); RefType refType = ref.getReferenceType(); Function fromFunc = funcManager.getFunctionContaining(fromAddr); String funcInfo = (fromFunc != null) ? " in " + fromFunc.getName() : ""; refs.add(String.format("From %s%s [%s]", fromAddr, funcInfo, refType.getName())); } } } if (refs.isEmpty()) { return "No references found to function: " + functionName; } return paginateList(refs, offset, limit); } catch (Exception e) { return "Error getting function references: " + e.getMessage(); } } /** * List all defined strings in the program with their addresses */ private String listDefinedStrings(int offset, int limit, String filter) { Program program = getCurrentProgram(); if (program == null) return "No program loaded"; List lines = new ArrayList<>(); DataIterator dataIt = program.getListing().getDefinedData(true); while (dataIt.hasNext()) { Data data = dataIt.next(); if (data != null && isStringData(data)) { String value = data.getValue() != null ? data.getValue().toString() : ""; if (filter == null || value.toLowerCase().contains(filter.toLowerCase())) { String escapedValue = escapeString(value); lines.add(String.format("%s: \"%s\"", data.getAddress(), escapedValue)); } } } return paginateList(lines, offset, limit); } /** * Check if the given data is a string type */ private boolean isStringData(Data data) { if (data == null) return false; DataType dt = data.getDataType(); String typeName = dt.getName().toLowerCase(); return typeName.contains("string") || typeName.contains("char") || typeName.equals("unicode"); } /** * Escape special characters in a string for display */ private String escapeString(String input) { if (input == null) return ""; StringBuilder sb = new StringBuilder(); for (int i = 0; i < input.length(); i++) { char c = input.charAt(i); if (c >= 32 && c < 127) { sb.append(c); } else if (c == '\n') { sb.append("\\n"); } else if (c == '\r') { sb.append("\\r"); } else if (c == '\t') { sb.append("\\t"); } else { sb.append(String.format("\\x%02x", (int)c & 0xFF)); } } return sb.toString(); } /** * Resolves a data type by name, handling common types and pointer types * @param dtm The data type manager * @param typeName The type name to resolve * @return The resolved DataType, or null if not found */ private DataType resolveDataType(DataTypeManager dtm, String typeName) { // First try to find exact match in all categories DataType dataType = findDataTypeByNameInAllCategories(dtm, typeName); if (dataType != null) { Msg.info(this, "Found exact data type match: " + dataType.getPathName()); return dataType; } // Check for Windows-style pointer types (PXXX) if (typeName.startsWith("P") && typeName.length() > 1) { String baseTypeName = typeName.substring(1); // Special case for PVOID if (baseTypeName.equals("VOID")) { return new PointerDataType(dtm.getDataType("/void")); } // Try to find the base type DataType baseType = findDataTypeByNameInAllCategories(dtm, baseTypeName); if (baseType != null) { return new PointerDataType(baseType); } Msg.warn(this, "Base type not found for " + typeName + ", defaulting to void*"); return new PointerDataType(dtm.getDataType("/void")); } // Handle common built-in types switch (typeName.toLowerCase()) { case "int": case "long": return dtm.getDataType("/int"); case "uint": case "unsigned int": case "unsigned long": case "dword": return dtm.getDataType("/uint"); case "short": return dtm.getDataType("/short"); case "ushort": case "unsigned short": case "word": return dtm.getDataType("/ushort"); case "char": case "byte": return dtm.getDataType("/char"); case "uchar": case "unsigned char": return dtm.getDataType("/uchar"); case "longlong": case "__int64": return dtm.getDataType("/longlong"); case "ulonglong": case "unsigned __int64": return dtm.getDataType("/ulonglong"); case "bool": case "boolean": return dtm.getDataType("/bool"); case "void": return dtm.getDataType("/void"); default: // Try as a direct path DataType directType = dtm.getDataType("/" + typeName); if (directType != null) { return directType; } // Fallback to int if we couldn't find it Msg.warn(this, "Unknown type: " + typeName + ", defaulting to int"); return dtm.getDataType("/int"); } } /** * Find a data type by name in all categories/folders of the data type manager * This searches through all categories rather than just the root */ private DataType findDataTypeByNameInAllCategories(DataTypeManager dtm, String typeName) { // Try exact match first DataType result = searchByNameInAllCategories(dtm, typeName); if (result != null) { return result; } // Try lowercase return searchByNameInAllCategories(dtm, typeName.toLowerCase()); } /** * Helper method to search for a data type by name in all categories */ private DataType searchByNameInAllCategories(DataTypeManager dtm, String name) { // Get all data types from the manager Iterator allTypes = dtm.getAllDataTypes(); while (allTypes.hasNext()) { DataType dt = allTypes.next(); // Check if the name matches exactly (case-sensitive) if (dt.getName().equals(name)) { return dt; } // For case-insensitive, we want an exact match except for case if (dt.getName().equalsIgnoreCase(name)) { return dt; } } return null; } // ---------------------------------------------------------------------------------- // Utility: parse query params, parse post params, pagination, etc. // ---------------------------------------------------------------------------------- /** * Parse query parameters from the URL, e.g. ?offset=10&limit=100 */ private Map parseQueryParams(HttpExchange exchange) { Map result = new HashMap<>(); String query = exchange.getRequestURI().getQuery(); // e.g. offset=10&limit=100 if (query != null) { String[] pairs = query.split("&"); for (String p : pairs) { String[] kv = p.split("="); if (kv.length == 2) { // URL decode parameter values try { String key = URLDecoder.decode(kv[0], StandardCharsets.UTF_8); String value = URLDecoder.decode(kv[1], StandardCharsets.UTF_8); result.put(key, value); } catch (Exception e) { Msg.error(this, "Error decoding URL parameter", e); } } } } return result; } /** * Parse post body form params, e.g. oldName=foo&newName=bar */ private Map parsePostParams(HttpExchange exchange) throws IOException { byte[] body = exchange.getRequestBody().readAllBytes(); String bodyStr = new String(body, StandardCharsets.UTF_8); Map params = new HashMap<>(); for (String pair : bodyStr.split("&")) { String[] kv = pair.split("="); if (kv.length == 2) { // URL decode parameter values try { String key = URLDecoder.decode(kv[0], StandardCharsets.UTF_8); String value = URLDecoder.decode(kv[1], StandardCharsets.UTF_8); params.put(key, value); } catch (Exception e) { Msg.error(this, "Error decoding URL parameter", e); } } } return params; } /** * Convert a list of strings into one big newline-delimited string, applying offset & limit. */ private String paginateList(List items, int offset, int limit) { int start = Math.max(0, offset); int end = Math.min(items.size(), offset + limit); if (start >= items.size()) { return ""; // no items in range } List sub = items.subList(start, end); return String.join("\n", sub); } /** * Parse an integer from a string, or return defaultValue if null/invalid. */ private int parseIntOrDefault(String val, int defaultValue) { if (val == null) return defaultValue; try { return Integer.parseInt(val); } catch (NumberFormatException e) { return defaultValue; } } /** * Escape non-ASCII chars to avoid potential decode issues. */ private String escapeNonAscii(String input) { if (input == null) return ""; StringBuilder sb = new StringBuilder(); for (char c : input.toCharArray()) { if (c >= 32 && c < 127) { sb.append(c); } else { sb.append("\\x"); sb.append(Integer.toHexString(c & 0xFF)); } } return sb.toString(); } public Program getCurrentProgram() { ProgramManager pm = tool.getService(ProgramManager.class); return pm != null ? pm.getCurrentProgram() : null; } private void sendResponse(HttpExchange exchange, String response) throws IOException { byte[] bytes = response.getBytes(StandardCharsets.UTF_8); exchange.getResponseHeaders().set("Content-Type", "text/plain; charset=utf-8"); exchange.sendResponseHeaders(200, bytes.length); try (OutputStream os = exchange.getResponseBody()) { os.write(bytes); } } @Override public void dispose() { if (server != null) { Msg.info(this, "Stopping GhidraMCP HTTP server..."); server.stop(1); // Stop with a small delay (e.g., 1 second) for connections to finish server = null; // Nullify the reference Msg.info(this, "GhidraMCP HTTP server stopped."); } super.dispose(); } } ================================================ FILE: src/main/resources/META-INF/MANIFEST.MF ================================================ Manifest-Version: 1.0 Plugin-Class: com.lauriewired.GhidraMCP Plugin-Name: GhidraMCP Plugin-Version: 1.0 Plugin-Author: LaurieWired Plugin-Description: A custom plugin by LaurieWired ================================================ FILE: src/main/resources/Module.manifest ================================================ GHIDRA_MODULE_NAME=GhidraMCP GHIDRA_MODULE_DESC=An HTTP server plugin for Ghidra ================================================ FILE: src/main/resources/extension.properties ================================================ name=GhidraMCP description=A plugin that runs an embedded HTTP server to expose program data. author=LaurieWired createdOn=2025-03-22 version=11.3.2 ghidraVersion=11.3.2 ================================================ FILE: src/test/java/com/lauriewired/AppTest.java ================================================ package com.lauriewired; import junit.framework.Test; import junit.framework.TestCase; import junit.framework.TestSuite; /** * Unit test for simple App. */ public class AppTest extends TestCase { /** * Create the test case * * @param testName name of the test case */ public AppTest( String testName ) { super( testName ); } /** * @return the suite of tests being tested */ public static Test suite() { return new TestSuite( AppTest.class ); } /** * Rigourous Test :-) */ public void testApp() { assertTrue( true ); } }