Advanced Debugging¶
A guide to using Wireshark when debugging complex use such as chained-connections.
Tips and Tricks¶
Setting up for a specific version
pkgver=4.0.2
myvenv=rpyc${pkgver}
virtualenv2 /tmp/$myvenv
source /tmp/$myvenv/bin/activate
pip install rpyc==$pkgver
Display filtering for Wireshark
tcp.port == 18878 || tcp.port == 18879
(tcp.port == 18878 || tcp.port == 18879) && tcp.segment_data contains "rpyc.core.service.SlaveService"
Running the chained-connection unit test
cd tests
python -m unittest test_get_id_pack.Test_get_id_pack.test_chained_connect
After stopping Wireshark, export specified packets, and open the PCAP. If not already configured, add a custom display column:
Title, Type, Fields, Field Occurrence
Stream Index, Custom, tcp.stream, 0
The stream index column makes it easier to decide which TCP stream to follow. Following a TCP provides a more human readable overview of requests and replies that can be printed as a PDF.
