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Updated README.

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Christian Deacon
2020-05-21 01:19:28 +00:00
parent db2c4792c7
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README.md
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@@ -132,5 +132,20 @@ cd XDP-Firewall
make && make install
```
## Notes
### BPF For/While Loop Support
This project requires for/while loop support with BPF. Older kernels will not support this and output an error such as:
```
libbpf: load bpf program failed: Invalid argument
libbpf: -- BEGIN DUMP LOG ---
libbpf:
back-edge from insn 113 to 100
libbpf: -- END LOG --
libbpf: failed to load program 'xdp_prog'
libbpf: failed to load object '/etc/xdpfw/xdpfw_kern.o'
```
## Credits
* [Christian Deacon](https://www.linkedin.com/in/christian-deacon-902042186/) - Creator.