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Message-ID: <CAErYV9EjKGh9ta8TZ9PRmaATH5VcXQH4cd=WuL5NfMOpcuoLfw@mail.gmail.com>
Date:   Fri, 26 May 2017 14:00:31 +0300
From:   Adel Fuchs <adelfuchs@...il.com>
To:     netdev@...r.kernel.org
Subject: running an eBPF program

Hi

I'm trying to run this eBPF program:

https://git.kernel.org/pub/scm/linux/kernel/git/shemminger/iproute2.git/tree/examples/bpf


and I get this error:


:~/iproute2/examples/bpf$sudo tc filter add dev enx00e11100329b parent
1: bpf obj bpf.o exp /tmp/bpf-uds flowid 1:1 action bpf obj bpf.o sec
action-mark            action bpf obj bpf.o sec action-rand ok

[sudo] password for adel:



Prog section 'classifier' rejected: Permission denied (13)!

- Type:         3

- Instructions: 218 (0 over limit)

- License:      GPL



Verifier analysis:



0: (bf) r6 = r1

1: (18) r9 = 0xffe0000e

3: (69) r0 = *(u16 *)(r6 +16)

invalid bpf_context access off=16 size=2



Error fetching program/map!

Failed to retrieve (e)BPF data!


Any suggestions?

Thanks,

Adel

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