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
|
# rt_sigtimedwait ____________________________________________
#
# long sys_rt_sigtimedwait(const sigset_t __user *uthese,
# siginfo_t __user *uinfo,
# const struct timespec __user *uts,
# size_t sigsetsize)
# long compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
# struct compat_siginfo __user *uinfo,
# struct compat_timespec __user *uts, compat_size_t sigsetsize)
#
@define _SYSCALL_RT_SIGTIMEDWAIT_NAME
%(
name = "rt_sigtimedwait"
%)
@define _SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
%(
argstr = sprintf("%s, %s, %s, %d", uthese_str, uinfo_str, uts_str, sigsetsize)
%)
@define _SYSCALL_RT_SIGTIMEDWAIT_REGARGS
%(
uthese_uaddr = pointer_arg(1)
uinfo_uaddr = pointer_arg(2)
uts_uaddr = pointer_arg(3)
if (@__compat_task) {
uthese_str = _stp_compat_sigset_u(uthese_uaddr)
uinfo_str = _stp_compat_siginfo_u(uinfo_uaddr)
uts_str = _struct_compat_timespec_u(uts_uaddr, 1)
} else {
uthese_str = _stp_sigset_u(uthese_uaddr)
uinfo_str = _stp_siginfo_u(uinfo_uaddr)
uts_str = _struct_timespec_u(uts_uaddr, 1)
}
%)
probe syscall.rt_sigtimedwait = dw_syscall.rt_sigtimedwait !,
nd_syscall.rt_sigtimedwait ? {}
probe syscall.rt_sigtimedwait.return = dw_syscall.rt_sigtimedwait.return !,
nd_syscall.rt_sigtimedwait.return ? {}
# dw_rt_sigtimedwait _____________________________________________________
probe dw_syscall.rt_sigtimedwait =
kernel.function("compat_sys_rt_sigtimedwait").call ?,
kernel.function("sys_rt_sigtimedwait").call
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
uthese_uaddr = @__pointer($uthese)
uinfo_uaddr = @__pointer($uinfo)
uts_uaddr = @__pointer($uts)
sigsetsize = $sigsetsize
if (@__compat_task) {
uthese_str = _stp_compat_sigset_u(uthese_uaddr)
uinfo_str = _stp_compat_siginfo_u(uinfo_uaddr)
uts_str = _struct_compat_timespec_u(uts_uaddr, 1)
} else {
uthese_str = _stp_sigset_u(uthese_uaddr)
uinfo_str = _stp_siginfo_u(uinfo_uaddr)
uts_str = _struct_timespec_u(uts_uaddr, 1)
}
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe dw_syscall.rt_sigtimedwait.return =
kernel.function("compat_sys_rt_sigtimedwait").return ?,
kernel.function("sys_rt_sigtimedwait").return
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR($return)
}
# nd_rt_sigtimedwait _____________________________________________________
probe nd_syscall.rt_sigtimedwait = nd1_syscall.rt_sigtimedwait!, nd2_syscall.rt_sigtimedwait!, tp_syscall.rt_sigtimedwait
{ }
probe nd1_syscall.rt_sigtimedwait = __nd1_syscall.rt_sigtimedwait ?,
__nd1_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
asmlinkage()
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __nd1_syscall.rt_sigtimedwait = kprobe.function("sys_rt_sigtimedwait")
{
asmlinkage()
sigsetsize = ulong_arg(4)
}
probe __nd1_syscall.compat_rt_sigtimedwait =
kprobe.function("compat_sys_rt_sigtimedwait")
{
asmlinkage()
sigsetsize = u32_arg(4)
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigtimedwait = __nd2_syscall.rt_sigtimedwait ?,
__nd2_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __nd2_syscall.rt_sigtimedwait =
kprobe.function(@arch_syscall_prefix "sys_rt_sigtimedwait")
{
__set_syscall_pt_regs(pointer_arg(1))
sigsetsize = ulong_arg(4)
}
probe __nd2_syscall.compat_rt_sigtimedwait =
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigtimedwait")
{
__set_syscall_pt_regs(pointer_arg(1))
sigsetsize = u32_arg(4)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigtimedwait = __tp_syscall.rt_sigtimedwait ?,
__tp_syscall.compat_rt_sigtimedwait ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@_SYSCALL_RT_SIGTIMEDWAIT_REGARGS
sigsetsize = ulong_arg(4)
@_SYSCALL_RT_SIGTIMEDWAIT_ARGSTR
}
probe __tp_syscall.rt_sigtimedwait = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_rt_sigtimedwait"))
sigsetsize = ulong_arg(4)
}
probe __tp_syscall.compat_rt_sigtimedwait = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_rt_sigtimedwait"))
sigsetsize = u32_arg(4)
}
probe nd_syscall.rt_sigtimedwait.return = nd1_syscall.rt_sigtimedwait.return!, nd2_syscall.rt_sigtimedwait.return!, tp_syscall.rt_sigtimedwait.return
{ }
probe nd1_syscall.rt_sigtimedwait.return =
kprobe.function("compat_sys_rt_sigtimedwait").return ?,
kprobe.function("sys_rt_sigtimedwait").return ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigtimedwait.return =
kprobe.function(@arch_syscall_prefix "sys_rt_sigtimedwait").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigtimedwait").return ?
{
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigtimedwait.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigtimedwait"), @const("__NR_compat_rt_sigtimedwait"))
@_SYSCALL_RT_SIGTIMEDWAIT_NAME
@SYSC_RETVALSTR($ret)
}
|
