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
|
# getpid _____________________________________________________
# long sys_getpid(void)
@define _SYSCALL_GETPID_NAME
%(
name = "getpid"
%)
@define _SYSCALL_GETPID_ARGSTR
%(
argstr = ""
%)
probe syscall.getpid = dw_syscall.getpid !, nd_syscall.getpid ? {}
probe syscall.getpid.return = dw_syscall.getpid.return !, nd_syscall.getpid.return ? {}
# dw_getpid _____________________________________________________
probe dw_syscall.getpid = kernel.function("sys_getpid").call
{
@_SYSCALL_GETPID_NAME
@_SYSCALL_GETPID_ARGSTR
}
probe dw_syscall.getpid.return = kernel.function("sys_getpid").return
{
@_SYSCALL_GETPID_NAME
@SYSC_RETVALSTR($return)
}
# nd_getpid _____________________________________________________
probe nd_syscall.getpid = nd1_syscall.getpid!, nd2_syscall.getpid!, tp_syscall.getpid
{ }
probe nd1_syscall.getpid = kprobe.function("sys_getpid")
{
@_SYSCALL_GETPID_NAME
@_SYSCALL_GETPID_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.getpid = kprobe.function(@arch_syscall0_prefix "sys_getpid") ?
{
@_SYSCALL_GETPID_NAME
@_SYSCALL_GETPID_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.getpid = kernel.trace("sys_enter")
{
@__syscall_compat_gate(@const("__NR_getpid"), @const("__NR_compat_getpid"))
@_SYSCALL_GETPID_NAME
@_SYSCALL_GETPID_ARGSTR
}
probe nd_syscall.getpid.return = nd1_syscall.getpid.return!, nd2_syscall.getpid.return!, tp_syscall.getpid.return
{ }
probe nd1_syscall.getpid.return = kprobe.function("sys_getpid").return
{
@_SYSCALL_GETPID_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.getpid.return = kprobe.function(@arch_syscall0_prefix "sys_getpid").return ?
{
@_SYSCALL_GETPID_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.getpid.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_getpid"), @const("__NR_compat_getpid"))
@_SYSCALL_GETPID_NAME
@SYSC_RETVALSTR($ret)
}
|
