update #3
Comments
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Hey, are you using the correct version of LibBPF that I used with this project? You should have the following commit checked out under https://github.com/libbpf/libbpf/tree/97ada10bd834950b1856c7f9efacc9ee83f824cf In regards to porting this project to the latest version of LibBPF, I might do that in the future, but I'm not sure when I'll have the time. |
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yes, libbpf correct version.
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Hey,any news? |
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Hi, I've pushed an update to the project that should work with the latest version of LibBPF. I wasn't able to test the TC program's functionality itself since I no longer run this in production, but confirmed attaching/detaching from the TC egress filter works. # TC filter egress programs loaded.
christian@dev-debian12:~$ sudo tc filter show dev enp1s0 egress
filter protocol all pref 49152 bpf chain 0
filter protocol all pref 49152 bpf chain 0 handle 0x1 tc_egress:[399] direct-action not_in_hw id 399 name tc_egress tag 245416d498d264d0 jited
# Ensuring mac_map is populated meaning new map pinning works.
christian@dev-debian12:~$ sudo bpftool map dump name mac_map
[{
"key": 0,
"value": 156300082273574
}
]
Please let me know how it goes and ensure you update LibBPF to the latest version when pulling the new changes. |
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Cloning into 'IPIPDirect-TC'...
make[1]: Leaving directory '/root/IPIPDirect-TC/src/include/libbpf/src' I can't compile
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I'll look into this later. It likely works on my VM because I've installed xdp-tools on the system. You could try installing that along with LibBPF to see if it corrects the error you're getting in the meantime. |
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uname -a apt-get install xdp-tools -- make same. |
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Hey,still need help. |
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Hey, please pull the latest changes and try again. The program builds successfully on a new stock Debian 12 VM I created after installing the following packages via apt. sudo apt install -y build-essential make libelf-dev clang gcc-multilib |
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compile successfully,but root@vultr:~/IPIPDirect-TC# /usr/bin/IPIPDirect_loader enp1s0 |
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Ah, I had to mount BPF and create the sudo mount -t bpf bpf /sys/fs/bpf
sudo mkdir -p /sys/fs/bpf/tc/globalsOutputs showing it works as expected. christian@dev-debian12:~/IPIPDirect-TC$ sudo IPIPDirect_loader enp1s0
libbpf: Kernel error message: Exclusivity flag on, cannot modify
Starting IPIP Direct TC egress program.christian@dev-debian12:~$ sudo tc filter show dev enp1s0 egress
filter protocol all pref 49152 bpf chain 0
filter protocol all pref 49152 bpf chain 0 handle 0x1 tc_egress:[197] direct-action not_in_hw id 197 name tc_egress tag 245416d498d264d0 jited The functionality should work, but I haven't tested the program after my recent commits. As long as the map pinning works as expected, there shouldn't be any issues. Also, you don't need |
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Thank you, I'll reinstall OS on game servers to Debian 12 and let u know. |
uname -a
6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
/usr/bin/IPIPDirect_loader eth0
libbpf: elf: legacy map definitions in 'maps' section are not supported by libbpf v1.0+
ERROR: opening BPF object file failed
Unable to load program
Error attaching TC egress filter. TC cannot attach to filter. Command => tc filter add dev eth0 egress prio 1 handle 1 bpf da obj /etc/IPIPDirect/IPIPDirect_filter.o sec egress and Return Error Number => 1.
https://github.com/libbpf/libbpf/wiki/Libbpf:-the-road-to-v1.0#drop-support-for-legacy-bpf-map-declaration-syntax
can you help recompile on newest OS?
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