testsuite/systemtap.examples/network/tcp.stp


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#! /usr/bin/env stap

//A simple TCP tapset example

probe begin {
	printf("Expected IP 7.91.205.21 .... %s\n", ip_ntop(123456789))
	printf("Expected IP 58.222.104.177 .... %s\n", ip_ntop(987654321))
	printf("Expected IP 9.3.191.111 ... %s\n", ip_ntop(151240559))
}

probe tcp.recvmsg {
	printf("received a message from %s on port %d from port %d\n", saddr, dport, sport)
}