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#! stap
%{
#include <linux/version.h>
#include <net/sock.h>
#include <net/tcp.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
#define LPORT (inet->inet.num)
#define DADDR (&inet->inet.daddr)
#else
#define LPORT (inet->num)
#define DADDR (&inet->daddr)
#endif
%}
function get_local_port:long(sock)
%{
unsigned long ptr = (unsigned long) THIS->sock;
struct inet_sock *inet = (struct inet_sock *) ptr;
THIS->__retvalue = (long long) LPORT;
%}
function get_ip_source:string(sock)
%{
unsigned long ptr = (unsigned long) THIS->sock;
struct inet_sock *inet = (struct inet_sock *) ptr;
unsigned char addr[4];
memcpy(addr, DADDR, sizeof(addr));
sprintf(THIS->__retvalue, "%d.%d.%d.%d",
addr[0], addr[1], addr[2], addr[3]);
%}
probe begin {
log ("UID\tCMD\t\tPID\t\tPORT\tIP_SOURCE")
}
probe kernel.function("tcp_accept").return {
sock = $return
if (sock != 0)
log(sprint(uid())."\t".
execname()."\t\t".
sprint(pid())."\t\t ".
sprint(get_local_port(sock))."\t".
get_ip_source(sock))
}
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