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zckevin/tcp_data_queue.stp

Created February 13, 2021 09:25
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monitor tcp data enqueue
Raw
tcp_data_queue.stp
sudo stap -v -e 'probe kernel.function("tcp_data_queue") {
tcphdr = __get_skb_tcphdr($skb);
sport = __tcp_skb_sport(tcphdr);
if (sport == 34025) {
seq = @cast($skb->cb, "tcp_skb_cb")->seq;
end_seq = @cast($skb->cb, "tcp_skb_cb")->end_seq;
printf("%d %d %d %d\n", sport, seq, end_seq, end_seq - seq);
// print_backtrace();
// exit()
}
}'
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