1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#! stap
global uids, pidnames, send_bytes, recv_bytes, pid_ports, pid_src_ips, pid_rtos
global pid_state, pid_mss, pid_ssthresh, pid_cwnd, totalbytes
probe begin {
log("systemtap starting probe")
}
probe end {
log("systemtap ending probe")
if (totalbytes > 0) {
printf("TCP totalbytes: %d\n",totalbytes)
print_report()
}
}
function print_report()
{
lines = 0;
log ("UID\tPID\tSIZE\tNAME\t\t\tPORT\tSOURCE\t\tRTO\tRCVMSS\tSSTHRES\tCWND\tSTATE")
for (lines = 0; lines <= 5; lines ++) {
if (!lines) {
foreach (_pid_ in pidnames) {
printf("%d\t%d\t%d\t%s\t\t\t%d\t%s\t%d\t%d\t%d\t%d\t%d\n",
uids[_pid_],_pid_,send_bytes[_pid_] + recv_bytes[_pid_],
pidnames[_pid_],pid_ports[_pid_],
pid_src_ips[_pid_],pid_rtos[_pid_], pid_mss[_pid_],
pid_ssthresh[_pid_],pid_cwnd[_pid_],pid_state[_pid_]);
lines++
}
} else {
print("\n")
}
}
}
probe tcp.sendmsg {
pid_ports[pid()] = inet_get_local_port(sock)
pid_src_ips[pid()] = inet_get_ip_source(sock)
pid_rtos[pid()] = tcp_get_info_rto(sock)
}
probe tcp.recvmsg {
pid_cwnd[pid()] = tcp_get_info_snd_cwnd(sock)
pid_mss[pid()] = tcp_ts_get_info_rcv_mss(sock)
pid_ssthresh[pid()] = tcp_ts_get_info_snd_ssthresh(sock)
pid_state[pid()] = tcp_ts_get_info_state(sock)
}
probe tcp.sendmsg.return {
if (size > 0) {
send_bytes[pid()] += size
totalbytes += size
pidnames[pid()] = execname()
uids[pid()] = uid()
}
}
probe tcp.recvmsg.return {
if (size > 0) {
recv_bytes[pid()] += size
totalbytes += size
pidnames[pid()] = execname()
uids[pid()] = uid()
}
}
probe tcp.disconnect {
delete pidnames[pid()]
}
|
