Re: [PATCH v6 bpf-next 2/2] bpf: add tests for direct packet access from CGROUP_SKB

2018-10-19 Thread Eric Dumazet
On 10/18/2018 10:53 PM, Song Liu wrote: > Tests are added to make sure CGROUP_SKB cannot access: > tc_classid, data_meta, flow_keys > > and can read and write: > mark, prority, and cb[0-4] > > and can read other fields. > > To make selftest with skb->sk work, a dummy sk is added in > bpf_

[PATCH v6 bpf-next 2/2] bpf: add tests for direct packet access from CGROUP_SKB

2018-10-18 Thread Song Liu
Tests are added to make sure CGROUP_SKB cannot access: tc_classid, data_meta, flow_keys and can read and write: mark, prority, and cb[0-4] and can read other fields. To make selftest with skb->sk work, a dummy sk is added in bpf_prog_test_run_skb(). Signed-off-by: Song Liu --- net/bpf/tes