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@bannsec bannsec/pwntools-r2-gdb
Last active Nov 18, 2018

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pwntools-r2
#!/usr/bin/env python3
"""
This enables use of radare2 for pwntools
Steps to enable
1. Download and save as "pwntools-gdb" somewhere in your PATH
2. chmod u+x pwntools-gdb
3. In your gdbscript, start lines with hashtag "#" that you want to get executed by radare2. For instance, to set a breakpoint automatically, you would use gdbscript="#r2.cmd('db sym.amin')"
4. Update line 60 if you're not a screen user..
"""
import argparse
import re
import subprocess
import shlex
import os
r2_python_template = """#!/usr/bin/env python
import os, r2pipe
r2 = r2pipe.open()
def load_modules():
modules = r2.cmdj("dmmj")
for module in modules:
if '{mod_name:s}' == os.path.basename(module['file']):
command = "oba {{addr:d}} {{file_name:s}}".format(file_name=module['file'], addr=module['address'])
r2.cmd(command)
load_modules()
r2.cmd('ib') # Reload the buffer info
{user_commands:s}
"""
def pwntools_r2():
parser = argparse.ArgumentParser()
parser.add_argument("-x", nargs=1)
parser.add_argument("-q", action="store_true")
parser.add_argument("file", nargs=1)
args = parser.parse_args()
file_name = args.file[0]
gdb_script = args.x[0]
with open(gdb_script, "r") as f:
gdb_script = f.read()
ip, port = re.findall("target remote (.+):([0-9]+)", gdb_script)[0]
# Find the user commands that start with "#"
user_commands = '\n'.join([line[1:] for line in gdb_script.split("\n") if line.startswith("#")])
script_file = args.x[0] + ".py"
with open(script_file,"w") as f:
f.write(r2_python_template.format(mod_name=os.path.basename(file_name), user_commands=user_commands))
run_script = "#!python2 {script_file:s}".format(script_file=script_file)
command = ["screen","-t","pwntools-r2","r2","-d","-i",script_file, "gdb://{ip:s}:{port:s}".format(ip=ip, port=port)]
subprocess.call(command)
def main():
pwntools_r2()
if __name__ == '__main__':
main()
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