tcptest.d
tuexen (Michael Tuexen)
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	tuexen
	Jun 16 2018, 5:46 PM

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tcptest.d
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	#!/usr/sbin/dtrace -s

	#pragma D option quiet
	#pragma D option switchrate=10hz

	dtrace:::BEGIN
	{
	printf(" %3s %15s:%-5s %15s:%-5s %6s %s\n", "CPU",
	"LADDR", "LPORT", "RADDR", "RPORT", "BYTES", "FLAGS");
	}

	tcp:::send
	{
	printf(" %3d %16s:%-5d -> %16s:%-5d %6d (", cpu,
	args[3]->tcps_laddr, args[3]->tcps_lport,
	args[3]->tcps_laddr, args[3]->tcps_rport,
	args[2]->ip_plength);
	}

	tcp:::receive
	{
	printf(" %3d %16s:%-5d <- %16s:%-5d %6d (", cpu,
	args[3]->tcps_laddr, args[3]->tcps_lport,
	args[3]->tcps_raddr, args[3]->tcps_rport,
	args[2]->ip_plength);
	}

	tcp:::send,
	tcp:::receive
	{
	printf("%s", args[4]->tcp_flags & TH_FIN ? "FIN\|" : "");
	printf("%s", args[4]->tcp_flags & TH_SYN ? "SYN\|" : "");
	printf("%s", args[4]->tcp_flags & TH_RST ? "RST\|" : "");
	printf("%s", args[4]->tcp_flags & TH_PUSH ? "PUSH\|" : "");
	printf("%s", args[4]->tcp_flags & TH_ACK ? "ACK\|" : "");
	printf("%s", args[4]->tcp_flags & TH_URG ? "URG\|" : "");
	printf("%s", args[4]->tcp_flags & TH_ECE ? "ECE\|" : "");
	printf("%s", args[4]->tcp_flags & TH_CWR ? "CWR\|" : "");
	printf("%s", args[4]->tcp_flags == 0 ? "null " : "");
	printf("\b)\n");
	}