This repository contains an extension to the Minix operating system which includes a firewall in the TCP/IP stack. For more information, see the Report.pdf file in the root directory.
- Davis Freimanis (davisf@kth.se)
- Thomas Peterson (thpeter@kth.se)
- Emelie Eriksson (emee@kth.se)
- Marcus Lignercrona (mlig@kth.se)
Compile the code using releasetools and then run Minix using the command that releasetools generates for you. Add the flags for network access inside Minix.
./releasetools/x86_hdimage.sh
qemu -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::xxxx-:yyyyxxxx corresponding the the port on the local machine and yyyy corresponding to the port on vm. For example with xxxx = 5555 and yyyy = 22.
When you boot Minix, run the commands below to enable internet access.
netconf
service network restartYou should now have the IP address 10.0.2.15 when you run ifconfig.
Dropped packets are logged to a logfile located in /var/log/fwdec. Debuging output is also available to stdout by setting the FWDEC_DEBUG flag to 1 in fwdec/fwdec.h. After running some commands that generate traffic run:
cat /var/log/fwdecTesting instructions can be found in the file test.md.