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# timer_settime ______________________________________________
#
# long sys_timer_settime(timer_t timer_id,
# int flags,
# const struct itimerspec __user *new_setting,
# struct itimerspec __user *old_setting)
# long compat_sys_timer_settime(timer_t timer_id, int flags,
# struct compat_itimerspec __user *new,
# struct compat_itimerspec __user *old)
#
@define _SYSCALL_TIMER_SETTIME_NAME
%(
name = "timer_settime"
%)
@define _SYSCALL_TIMER_SETTIME_ARGSTR
%(
argstr = sprintf("%d, %d, %s, %p", timerid, flags,
value_str, ovalue_uaddr)
%)
@define _SYSCALL_TIMER_SETTIME_REGARGS
%(
timerid = int_arg(1)
flags = int_arg(2)
value_uaddr = pointer_arg(3)
ovalue_uaddr = pointer_arg(4)
%)
@define _SYSCALL_TIMER_SETTIME_REGARGS_STORE
%(
if (@probewrite(timerid))
set_int_arg(1, timerid)
if (@probewrite(flags))
set_int_arg(2, flags)
if (@probewrite(value_uaddr))
set_pointer_arg(3, value_uaddr)
if (@probewrite(ovalue_uaddr))
set_pointer_arg(4, ovalue_uaddr)
%)
probe syscall.timer_settime = dw_syscall.timer_settime !,
nd_syscall.timer_settime ? {}
probe syscall.timer_settime.return = dw_syscall.timer_settime.return !,
nd_syscall.timer_settime.return ? {}
# dw_timer_settime _____________________________________________________
probe dw_syscall.timer_settime = __syscall.timer_settime,
kernel.function("compat_sys_timer_settime").call ?
{
@_SYSCALL_TIMER_SETTIME_NAME
timerid = __int32($timer_id)
flags = __int32($flags)
value_uaddr = @__pointer(@choose_defined($new, $new_setting))
ovalue_uaddr = @__pointer(@choose_defined($old, $old_setting))
%( CONFIG_COMPAT == "y" %?
value_str = (@__compat_task ? _struct_compat_itimerspec_u(value_uaddr)
: _struct_itimerspec_u(value_uaddr))
%:
value_str = _struct_itimerspec_u(value_uaddr)
%)
@_SYSCALL_TIMER_SETTIME_ARGSTR
}
probe __syscall.timer_settime = kernel.function("sys_timer_settime").call
{
@__syscall_gate(@const("__NR_timer_settime"))
}
probe dw_syscall.timer_settime.return =
__syscall.timer_settime.return,
kernel.function("compat_sys_timer_settime").return ?
{
@_SYSCALL_TIMER_SETTIME_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.timer_settime.return =
kernel.function("sys_timer_settime").return
{
@__syscall_gate(@const("__NR_timer_settime"))
}
# nd_timer_settime _____________________________________________________
probe nd_syscall.timer_settime = nd1_syscall.timer_settime!, nd2_syscall.timer_settime!, tp_syscall.timer_settime
{ }
probe nd1_syscall.timer_settime = __nd1_syscall.timer_settime,
__nd1_syscall.compat_timer_settime ?
{
@_SYSCALL_TIMER_SETTIME_NAME
asmlinkage()
}
probe __nd1_syscall.timer_settime = kprobe.function("sys_timer_settime").call
{
@__syscall_gate(@const("__NR_timer_settime"))
asmlinkage()
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
}
probe __nd1_syscall.compat_timer_settime =
kprobe.function("compat_sys_timer_settime").call ?
{
asmlinkage()
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_compat_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.timer_settime = __nd2_syscall.timer_settime,
__nd2_syscall.compat_timer_settime ?
{
@_SYSCALL_TIMER_SETTIME_NAME
}
probe __nd2_syscall.timer_settime =
kprobe.function(@arch_syscall_prefix "sys_timer_settime")
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMER_SETTIME_REGARGS_STORE %)
}
probe __nd2_syscall.compat_timer_settime =
kprobe.function(@arch_syscall_prefix "compat_sys_timer_settime").call ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_compat_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMER_SETTIME_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.timer_settime = __tp_syscall.timer_settime,
__tp_syscall.compat_timer_settime ?
{
@_SYSCALL_TIMER_SETTIME_NAME
}
probe __tp_syscall.timer_settime = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_timer_settime"))
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMER_SETTIME_REGARGS_STORE %)
}
probe __tp_syscall.compat_timer_settime = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_timer_settime"))
@_SYSCALL_TIMER_SETTIME_REGARGS
value_str = _struct_compat_itimerspec_u(value_uaddr)
@_SYSCALL_TIMER_SETTIME_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMER_SETTIME_REGARGS_STORE %)
}
probe nd_syscall.timer_settime.return = nd1_syscall.timer_settime.return!, nd2_syscall.timer_settime.return!, tp_syscall.timer_settime.return
{ }
probe nd1_syscall.timer_settime.return =
__nd1_syscall.timer_settime.return,
kprobe.function("compat_sys_timer_settime").return ?
{
@_SYSCALL_TIMER_SETTIME_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.timer_settime.return =
kprobe.function("sys_timer_settime").return
{
@__syscall_gate(@const("__NR_timer_settime"))
}
/* kernel 4.17+ */
probe nd2_syscall.timer_settime.return =
kprobe.function(@arch_syscall_prefix "sys_timer_settime").return,
kprobe.function(@arch_syscall_prefix "compat_sys_timer_settime").return ?
{
@_SYSCALL_TIMER_SETTIME_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.timer_settime.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_timer_settime"), @const("__NR_compat_timer_settime"))
@_SYSCALL_TIMER_SETTIME_NAME
@SYSC_RETVALSTR($ret)
}