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67 lines
1.0 KiB
67 lines
1.0 KiB
// Copyright (c) PLUMgrid, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License")
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struct IPKey {
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u32 dip:32;
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u32 sip:32;
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};
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struct IPLeaf {
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u32 rx_pkts:64;
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u32 tx_pkts:64;
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};
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Table<IPKey, IPLeaf, FIXED_MATCH, AUTO> stats(1024);
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struct skbuff {
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u32 type:32;
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};
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u32 on_packet(struct skbuff *skb) {
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u32 ret:32 = 0;
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goto proto::ethernet;
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state proto::ethernet {
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}
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state proto::dot1q {
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}
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state proto::ip {
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u32 rx:32 = 0;
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u32 tx:32 = 0;
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u32 IPKey key;
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if $ip.dst > $ip.src {
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key.dip = $ip.dst;
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key.sip = $ip.src;
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rx = 1;
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// test arbitrary return stmt
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if false {
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return 3;
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}
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} else {
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key.dip = $ip.src;
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key.sip = $ip.dst;
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tx = 1;
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ret = 1;
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}
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struct IPLeaf *leaf;
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leaf = stats[key];
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on_valid(leaf) {
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atomic_add(leaf.rx_pkts, rx);
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atomic_add(leaf.tx_pkts, tx);
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}
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}
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state proto::udp {
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}
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state proto::vxlan {
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}
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state proto::gre {
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}
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state EOP {
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return ret;
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}
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}
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