Update files

Author: evilpan

.gitignore

@@ -1 +1,3 @@
 *.swp
+.DS_Store
+JadxFindJNI.zip

Makefile

@@ -1,12 +1,15 @@
-ghidra:
-	install -d ${HOME}/ghidra_scripts/data
-	install -m 644 ghidra/jni_helper.py ${HOME}/ghidra_scripts/
-	install -m 644 headers/jni.h.gdt ${HOME}/ghidra_scripts/data/jni.h.gdt
+jni:
+	make -C JadxFindJNI
 
-ida:
-	echo "TODO"
+demo:
+	make -C demo
 
-r2:
-	echo "TODO"
+dist: jni
+	zip JadxFindJNI.zip JadxFindJNI/JadxFindJNI.jar JadxFindJNI/lib/*.jar
 
-.PHONY: ghidra
+clean:
+	make -C JadxFindJNI clean
+	make -C demo clean
+	rm -rf JadxFindJNI.zip
+
+.PHONY: jni demo clean dist

README.md

@@ -1,22 +1,59 @@
 JNI Helper
 ===
 
-Find JNI function signatures from APK and then load to your decompiler tools!
+Find JNI function signatures from APK and load to reverse tools.
 
 
 # Usage
 
-1. use [JadxFindJNI.jar][JadxFindJNI] to generate signature.json
+1. use [JadxFindJNI.jar](JadxFindJNI) to generate signature.json
 2. load signature.json into Ghidra/IDA/Radare2
 
-# Ghidra Plugin
+## JadxFindJNI.jar
 
-Install:
-```sh
-$ make ghidra
+Build:
+```
+$ make jni
 ```
 
-Load:
+Or you can just download the [latest release][dist].
+
+Usage:
+```sh
+$ java -jar JadxFindJNI/JadxFindJNI.jar
+Usage: JadxFindJNI.jar <file.apk> <output.json>
 ```
-Window -> Script Manager -> Run Script jni_helper.py 
+
+## Ghidra
+
+See [Ghidra](./ghidra)
+
+## IDA
+
+See [IDA](./ida)
+
+## Radare2
+
+See [Radare2](./r2)
+
+# Demo
+
+Tested with [app-debug.apk](./demo).
+
+```sh
+$ make demo
 ```
+
+
+# TODO
+
+- [x] support both C/C++ JNI functions
+- [ ] support [env->RegisterNatives][reg] JNI functions
+
+# Thanks
+
+- [Ayrx/JNIAnalyzer][ayrx]
+
+[reg]: https://developer.android.com/training/articles/perf-jni#native-libraries
+[ayrx]: https://github.com/Ayrx/JNIAnalyzer
+[dist]: https://github.com/evilpan/jni_helper/releases

demo/.gitignore

@@ -0,0 +1,2 @@
+app-debug.json
+lib

demo/Makefile

@@ -0,0 +1,16 @@
+all: app-debug.json lib
+
+lib: app-debug.apk
+	unzip $^ "lib*"
+
+JadxFindJNI:
+	make -C ../JadxFindJNI
+
+app-debug.json: app-debug.apk JadxFindJNI
+	java -jar ../JadxFindJNI/JadxFindJNI.jar $< $@
+
+clean: 
+	rm -rf app-debug.json lib
+	make -C ../JadxFindJNI clean
+
+.PHONY: all lib clean JadxFindJNI

demo/README.md

@@ -0,0 +1,7 @@
+Demo apk here
+===
+
+extract lib and json from apk:
+```sh
+$ make
+```

demo/app-debug.apk

@@ -1,14 +1,16 @@
 JNI Helper for Ghidra
 ===
 
-Install:
+# Install
+
 ```sh
 $ make install
 ```
 
-Load:
+# Load
+
 ```
-Window -> Script Manager -> Run Script jni_helper.py 
+Window -> Script Manager -> jni_helper.py (Run Script)
 ```
 
 Logging: