mirror of
https://github.com/xdp-project/bpf-examples.git
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070715cf1c
Add an example to filter looping packets on (for instance) a bond interface, by recording the egress MAC+VLAN and dropping any packets that come in on other (related) interfaces with the same MAC+VLAN. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
20 lines
317 B
C
20 lines
317 B
C
#ifndef __PKT_LOOP_FILTER_H__
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#define __PKT_LOOP_FILTER_H__
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#define NS_PER_SEC 1000000000ULL
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#define STATE_LIFETIME (10 * NS_PER_SEC)
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struct pkt_loop_key {
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__u8 src_mac[6];
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__u16 src_vlan;
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};
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struct pkt_loop_data {
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__u64 expiry_time;
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__u32 ifindex;
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__u32 drops;
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};
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#endif
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