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