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Fix packetcapture bpf filter issue (#6815) #6821

Merged
merged 2 commits into from
Nov 19, 2024
Merged

Fix packetcapture bpf filter issue (#6815) #6821

merged 2 commits into from
Nov 19, 2024
+41 −3

Commits on Nov 19, 2024

  1. Fix packetcapture bpf filter issue (antrea-io#6815) 

    In PacketCapture, packets which don’t match the target BPF can be
received after the socket is created and before the bpf filter is
applied.This patch use a zero bpf filter(match no packet), then
empty out any packets that arrived before the “zero-BPF” filter was
applied.At this point the socket is definitely empty and it can’t
fill up with junk because the zero-BPF is in place. Then we replace
the zero-BPF with the real BPF we want.

Signed-off-by: Hang Yan <[email protected]>
Co-authored-by: Antonin Bas <[email protected]>
    @hangyan @antoninbas
    hangyan and antoninbas committed Nov 19, 2024
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  2. fix ci 

    Signed-off-by: Hang Yan <[email protected]>
    @hangyan
    hangyan committed Nov 19, 2024
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