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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#! /usr/bin/env stap
global socketstart, lastevent, sendtofd
global eventnumber, eventname, eventstart, eventend, eventbytes, eventlength
global writestart, readstart, sendstart, recvstart
probe begin {
if (target() == 0) {
println("No PID specified. Use -c or -x. See man stap for more information.")
exit()
}
}
function printshorthistory (fd:long) {
if (eventnumber[fd] < 1 || eventnumber[fd] % 2 && eventnumber[fd] != 1)
return
wait1 = eventstart[fd, eventnumber[fd] - 1] - eventend[fd, eventnumber[fd] - 2]
wait2 = eventstart[fd, eventnumber[fd]] - eventend[fd, eventnumber[fd] - 1]
name1 = eventname[fd, eventnumber[fd] - 1]
name2 = eventname[fd, eventnumber[fd]]
length1 = eventlength[fd, eventnumber[fd] - 1]
length2 = eventlength[fd, eventnumber[fd]]
bytes1 = eventbytes[fd, eventnumber[fd] -1]
bytes2 = eventbytes[fd, eventnumber[fd]]
if (eventnumber[fd] == 1)
printf("Socket %d connect, wait %d us, %s %d bytes in %d us\n", fd, wait2, name2, bytes2, length2)
else {
printf("Socket %d wait %d us, ", fd, wait1)
printf("%s %d bytes in %d us, wait %d us, ", name1, bytes1, length1, wait2)
printf("%s %d bytes in %d us\n", name2, bytes2, length2)
}
}
probe syscall.socket.return {
if (!target_set_pid(pid()))
next
eventnumber[$return] = 0
socketstart[$return] = gettimeofday_us()
eventname[$return, eventnumber[$return]] = "connect"
eventend[$return, eventnumber[$return]] = gettimeofday_us()
lastevent[$return] = "connect"
}
probe syscall.close.return {
if (!target_set_pid(pid()))
next
if (socketstart[$fd] != 0 && eventnumber[$fd] >= 1)
printf("Socket %d close\n", $fd)
delete socketstart[$fd]
}
probe syscall.send, syscall.sendmsg {
if (!target_set_pid(pid()))
next
if (socketstart[s] != 0 && sendstart[s] == 0) {
sendstart[s] = gettimeofday_us()
if (lastevent[s] == "send")
next
printshorthistory(s)
eventname[s, ++eventnumber[s]] = "send"
eventstart[s, eventnumber[s]] = sendstart[s]
}
}
probe syscall.sendto {
if (!target_set_pid(pid()))
next
if (socketstart[s] !=0 && sendstart[s] == 0) {
sendstart[s] = gettimeofday_us()
sendtofd[tid()] = s
if (lastevent[s] == "send")
next
printshorthistory(s)
eventname[s, ++eventnumber[s]] = "send"
eventstart[s, eventnumber[s]] = sendstart[s]
}
}
probe __syscall.send.return, __syscall.sendmsg.return {
if (!target_set_pid(pid()))
next
if (socketstart[$fd] != 0 && $return > 0) {
eventbytes[$fd, eventnumber[$fd]] += $return
eventlength[$fd, eventnumber[$fd]] += gettimeofday_us() - sendstart[$fd]
eventend[$fd, eventnumber[$fd]] = gettimeofday_us()
}
sendstart[$fd] = 0
lastevent[$fd] = "send"
}
probe syscall.sendto.return {
if (!target_set_pid(pid()))
next
fd = sendtofd[tid()]
if (socketstart[fd] != 0 && $return > 0) {
eventbytes[fd, eventnumber[fd]] += $return
eventlength[fd, eventnumber[fd]] += gettimeofday_us() - sendstart[fd]
eventend[fd, eventnumber[fd]] = gettimeofday_us()
}
sendstart[fd] = 0
lastevent[fd] = "send"
}
probe syscall.recv, syscall.recvfrom, syscall.recvmsg {
if (!target_set_pid(pid()))
next
if (socketstart[s] != 0 && recvstart[s] == 0) {
recvstart[s] = gettimeofday_us()
if (lastevent[s] == "recv")
next
printshorthistory(s)
eventname[s, ++eventnumber[s]] = "recv"
eventstart[s, eventnumber[s]] = recvstart[s]
}
}
probe __syscall.recv.return, __syscall.recvfrom.return, __syscall.recvmsg.return {
if (!target_set_pid(pid()))
next
if (socketstart[$fd] != 0 && $return > 0) {
eventbytes[$fd, eventnumber[$fd]] += $return
eventlength[$fd, eventnumber[$fd]] += gettimeofday_us() - recvstart[$fd]
eventend[$fd, eventnumber[$fd]] = gettimeofday_us()
}
recvstart[$fd] = 0
lastevent[$fd] = "recv"
}
probe syscall.write, syscall.writev {
if (!target_set_pid(pid()))
next
if (socketstart[fd] != 0 && writestart[fd] == 0) {
writestart[fd] = gettimeofday_us()
if (lastevent[fd] == "write")
next
printshorthistory(fd)
eventname[fd, ++eventnumber[fd]] = "write"
eventstart[fd, eventnumber[fd]] = writestart[fd]
}
}
probe syscall.write.return, syscall.writev.return {
if (!target_set_pid(pid()))
next
if (socketstart[$fd] != 0 && $return > 0) {
eventbytes[$fd, eventnumber[$fd]] += $return
eventlength[$fd, eventnumber[$fd]] += gettimeofday_us() - writestart[$fd]
eventend[$fd, eventnumber[$fd]] = gettimeofday_us()
}
writestart[$fd] = 0
lastevent[$fd] = "write"
}
probe syscall.read, syscall.readv {
if (!target_set_pid(pid()))
next
if (socketstart[fd] != 0 && readstart[fd] == 0) {
readstart[fd] = gettimeofday_us()
if (lastevent[fd] == "read")
next
printshorthistory(fd)
eventname[fd, ++eventnumber[fd]] = "read"
eventstart[fd, eventnumber[fd]] = readstart[fd]
}
}
probe syscall.read.return, syscall.readv.return {
if (!target_set_pid(pid()))
next
if (socketstart[$fd] != 0 && $return > 0) {
eventbytes[$fd, eventnumber[$fd]] += $return
eventlength[$fd, eventnumber[$fd]] += gettimeofday_us() - readstart[$fd]
eventend[$fd, eventnumber[$fd]] = gettimeofday_us()
}
readstart[$fd] = 0
lastevent[$fd] = "read"
}
|
