Merge pull request 'Added script for dumping C callbacks' (#7) from Strongleong/ScrapHacks:callbacks into master

Reviewed-on: Earthnuker/ScrapHacks#7
2023-02-04 11:24:00 +00:00 · 2023-02-04 11:24:00 +00:00 · b5afe0e2a5
commit b5afe0e2a5
parent a93a2fc63a 685e0b9e53
1 changed files with 58 additions and 0 deletions
--- a/tools/ghidra_scripts/callbacks_to_md.py
+++ b/tools/ghidra_scripts/callbacks_to_md.py
@ -0,0 +1,58 @@
+from ghidra.app.decompiler import DecompileOptions
+from ghidra.app.decompiler import DecompInterface
+from ghidra.util.task import ConsoleTaskMonitor
+
+TARGET_FUNC = "add_callback"
+
+def xref_params(target_func):
+    target_addr = 0
+    callers = []
+    funcs = getGlobalFunctions(target_func)
+    for func in funcs:
+        if func.getName() == target_func:
+            target_addr = func.getEntryPoint()
+            references = getReferencesTo(target_addr)
+            for xref in references:
+                call_addr = xref.getFromAddress()
+                caller = getFunctionContaining(call_addr)
+                callers.append(caller)
+            break
+    callers = list(set(callers))
+    options = DecompileOptions()
+    monitor = ConsoleTaskMonitor()
+    ifc = DecompInterface()
+    ifc.setOptions(options)
+    ifc.openProgram(currentProgram)
+    with open("callbacks.md", "w") as file:
+        res = "|Callback setup address|Callback name|Callback funcion|Callback address|"
+        print(res)
+        file.write(res + "\n")
+        res = "|-----|----|----|--------|"
+        print(res)
+        file.write(res + "\n")
+        for caller in callers:
+            callback_setup_addr = caller.getEntryPoint()
+            res = ifc.decompileFunction(caller, 60, monitor)
+            code = str(res.getDecompiledFunction().getC())
+            code = code.split(target_func)[1]
+            code = code.split(';')[0]
+            code = code.strip()
+            code = code.split(',')
+            callback_name = code[1].strip()
+            callback_func = code[2].strip()[:-1].strip().replace('_', '.')
+            res = ifc.decompileFunction(caller, 60, monitor)
+            hf = res.getHighFunction()
+            opiter = hf.getPcodeOps()
+            callback_addr = "not found"
+            while opiter.hasNext():
+                op = opiter.next()
+                mnemonic = op.getMnemonic()
+                if mnemonic == "CALL":
+                    core_func = op.getInput(3)
+                    callback_addr = toAddr(core_func.getDef().getInput(1).getOffset())
+            res = "|`{}`|{}|`{}`|`{}`|".format(callback_setup_addr, callback_name, callback_func, callback_addr)
+            print(res)
+            file.write(res + "\n")
+
+
+xref_params(TARGET_FUNC)