Timotej Lazar
cf6b682cf8
Create a self-signed CA, set up group configs, add script to allow new connections through the firewall. In the base debian role, drop the default nftables forward chain with drop policy because it clashes with this. If you enable forwarding on a debian host, make sure to configure the firewall.
26 lines
717 B
Bash
26 lines
717 B
Bash
#!/bin/sh
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set -x
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[ -n "$DEVICE" ] || exit 1
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[ -n "$USERNAME" ] || exit 2
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[ -n "$IP_REMOTE" ] || exit 3
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chain="inet ocserv client-${USERNAME}"
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remote_ip="${IP_REMOTE%/*}"
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case "${REASON}" in
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connect)
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nft "add chain ${chain} { type filter hook forward priority filter; policy accept; }"
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nft "flush chain ${chain}" # in case it already existed and not empty
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if [ -n "$OCSERV_ROUTES" ] ; then
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# convert netmask to prefix len, e.g. /255.0.0.0 to /8 and replace spaces with commas
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routes="$(netmask $OCSERV_ROUTES | paste -s -d ',' | tr -d '[:space:]')"
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nft "add rule ${chain} iif ${DEVICE} ip saddr ${remote_ip} ip daddr { ${routes} } mark set 0x100"
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fi
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;;
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disconnect)
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nft "delete chain ${chain}"
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;;
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esac
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