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Hi, For the following package: $ rpm -q tcpcrypt tcpcrypt-0.4-0.4.bb990b1b.fc23.x86_64 Which contains the following files: $ rpm -ql tcpcrypt /run/tcpcryptd /usr/bin/tcnetstat /usr/bin/tcpcryptd /usr/bin/tcpcryptd-firewall /usr/bin/tcs /usr/lib/systemd/system/tcpcryptd.service /usr/lib/tmpfiles.d/tcpcrypt.conf /usr/share/doc/tcpcrypt /usr/share/doc/tcpcrypt/LICENSE /usr/share/doc/tcpcrypt/README.markdown /usr/share/man/man8/tcnetstat.8.gz /usr/share/man/man8/tcpcryptd.8.gz The following systemd manifest: $ cat /usr/lib/systemd/system/tcpcryptd.service [Unit] Description=tcpcryptd Server After=syslog.target network.target [Service] Type=simple ExecStartPre=mkdir -p /var/run/tcpcryptd ExecStartPre=/usr/bin/tcpcryptd-firewall start ExecStart=/usr/bin/tcpcryptd -f -x 0x10 ExecStopPost=/usr/bin/tcpcryptd-firewall stop [Install] WantedBy=multi-user.target Runs the following script: $ cat /usr/bin/tcpcryptd-firewall #!/bin/sh if [ "$1" == "start" ] then iptables -t raw -N tcpcrypt iptables -t raw -A tcpcrypt -p tcp -m mark --mark 0x0/0x10 -j NFQUEUE --queue-num 666 iptables -t raw -I PREROUTING -j tcpcrypt iptables -t mangle -N tcpcrypt iptables -t mangle -A tcpcrypt -p tcp -m mark --mark 0x0/0x10 -j NFQUEUE --queue-num 666 iptables -t mangle -I POSTROUTING -j tcpcrypt # launch `tcpcryptd` with `-x 0x10` fi if [ "$1" == "stop" ] then iptables -t raw -F tcpcrypt iptables -t raw -D PREROUTING -j tcpcrypt iptables -t mangle -F tcpcrypt iptables -t mangle -D PREROUTING -j tcpcrypt fi *However*, Fedora uses firewalld and not iptables by default and as such the script needs to be patched so that this package can work out the box in the excepted manner. Kind Regards, Edward.
Created attachment 1131722 [details] firewalld ruleset Put in `/etc/firewalld/direct.xml' then run: $ sudo firewall-cmd --reload $ sudo firewall-cmd --direct --get-rules ipv4 raw tcpcrypt $ sudo firewall-cmd --direct --get-rules ipv4 mangle tcpcrypt However, checking http://tcpcrypt.org/test.php does not show things seem to work as expected :/ so there is still a minor issue somewhere?
note I pushed a fixed package in rawhide. But while it shows crypted status with tcnetstat, it causes packetflow issues to the test site tcpcrypt.org, so I'm talking to upstream about what's going on.
(In reply to Paul Wouters from comment #2) > note I pushed a fixed package in rawhide. But while it shows crypted status > with tcnetstat, it causes packetflow issues to the test site tcpcrypt.org, > so I'm talking to upstream about what's going on. Thank you for keeping this up to date Paul, please continue to do so!
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