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|
# rt_sigaction _______________________________________________
#
# sys_rt_sigaction(int sig,
# const struct sigaction __user *act,
# struct sigaction __user *oact,
# size_t sigsetsize)
#
@define _SYSCALL_RT_SIGACTION_NAME
%(
name = "rt_sigaction"
%)
@define _SYSCALL_RT_SIGACTION_ARGSTR
%(
argstr = sprintf("%s, {%s}, %p, %d", sig_str, act_str, oact_uaddr, sigsetsize)
%)
@define _SYSCALL_RT_SIGACTION_REGARGS
%(
sig = int_arg(1)
sig_str = _signal_name(sig)
act_uaddr = pointer_arg(2)
act_str = _struct_sigaction_u(act_uaddr)
oact_uaddr = pointer_arg(3)
sigsetsize = ulong_arg(4)
%)
@define _SYSCALL_RT_SIGACTION_REGARGS_STORE
%(
if (@probewrite(sig))
set_int_arg(1, sig)
if (@probewrite(act_uaddr))
set_pointer_arg(2, act_uaddr)
if (@probewrite(oact_uaddr))
set_pointer_arg(3, oact_uaddr)
if (@probewrite(sigsetsize))
set_ulong_arg(4, sigsetsize)
%)
@define _SYSCALL_RT_SIGACTION32_REGARGS
%(
sig = int_arg(1)
sig_str = _signal_name(sig)
act_uaddr = pointer_arg(2)
act_str = _struct_sigaction32_u(act_uaddr)
oact_uaddr = pointer_arg(3)
sigsetsize = uint_arg(4)
%)
probe syscall.rt_sigaction = dw_syscall.rt_sigaction !, nd_syscall.rt_sigaction ? {}
probe syscall.rt_sigaction.return = dw_syscall.rt_sigaction.return !,
nd_syscall.rt_sigaction.return ? {}
# dw_rt_sigaction _____________________________________________________
probe dw_syscall.rt_sigaction = kernel.function("sys_rt_sigaction").call ?
{
@_SYSCALL_RT_SIGACTION_NAME
sig = __int32($sig)
sig_str = _signal_name(sig)
act_uaddr = $act
act_str = _struct_sigaction_u(act_uaddr)
oact_uaddr = $oact
sigsetsize = $sigsetsize
@_SYSCALL_RT_SIGACTION_ARGSTR
}
probe dw_syscall.rt_sigaction.return = kernel.function("sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR($return)
}
# nd_rt_sigaction _____________________________________________________
probe nd_syscall.rt_sigaction = nd1_syscall.rt_sigaction!, nd2_syscall.rt_sigaction!, tp_syscall.rt_sigaction
{ }
probe nd1_syscall.rt_sigaction = kprobe.function("sys_rt_sigaction") ?
{
@_SYSCALL_RT_SIGACTION_NAME
asmlinkage()
@_SYSCALL_RT_SIGACTION_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigaction = kprobe.function(@arch_syscall_prefix "sys_rt_sigaction") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_RT_SIGACTION_NAME
@_SYSCALL_RT_SIGACTION_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGACTION_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigaction = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_rt_sigaction"))
@_SYSCALL_RT_SIGACTION_NAME
@_SYSCALL_RT_SIGACTION_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGACTION_REGARGS_STORE %)
}
probe nd_syscall.rt_sigaction.return = nd1_syscall.rt_sigaction.return!, nd2_syscall.rt_sigaction.return!, tp_syscall.rt_sigaction.return
{ }
probe nd1_syscall.rt_sigaction.return =
kprobe.function("sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigaction.return = kprobe.function(@arch_syscall_prefix "sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigaction.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_rt_sigaction"))
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR($ret)
}
# long sys32_rt_sigaction(int sig,
# struct sigaction32 __user *act,
# struct sigaction32 __user *oact,
# unsigned int sigsetsize)
# ppc only
# compat_sys_rt_sigaction(int sig,
# const struct sigaction32 __user *act,
# struct sigaction32 __user *oact,
# size_t sigsetsize)
probe syscall.rt_sigaction32 = dw_syscall.rt_sigaction32 !,
nd_syscall.rt_sigaction32 ? {}
probe syscall.rt_sigaction32.return = dw_syscall.rt_sigaction32.return !,
nd_syscall.rt_sigaction32.return ? {}
# dw_rt_sigaction32 _____________________________________________________
probe dw_syscall.rt_sigaction32 = kernel.function("sys32_rt_sigaction").call ?,
kernel.function("compat_sys_rt_sigaction").call ?
{
@_SYSCALL_RT_SIGACTION_NAME
sig = __int32($sig)
sig_str = _signal_name(sig)
act_uaddr = @__pointer($act)
act_str = _struct_sigaction32_u(act_uaddr)
oact_uaddr = $oact
sigsetsize = $sigsetsize
@_SYSCALL_RT_SIGACTION_ARGSTR
}
probe dw_syscall.rt_sigaction32.return =
kernel.function("sys32_rt_sigaction").return ?,
kernel.function("compat_sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR($return)
}
# nd_rt_sigaction32 _____________________________________________________
probe nd_syscall.rt_sigaction32 = nd1_syscall.rt_sigaction32!, nd2_syscall.rt_sigaction32!, tp_syscall.rt_sigaction32
{ }
probe nd1_syscall.rt_sigaction32 = kprobe.function("sys32_rt_sigaction") ?,
kprobe.function("compat_sys_rt_sigaction") ?
{
@_SYSCALL_RT_SIGACTION_NAME
asmlinkage()
@_SYSCALL_RT_SIGACTION32_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigaction32 =
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigaction") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_RT_SIGACTION_NAME
@_SYSCALL_RT_SIGACTION32_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGACTION_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigaction32 = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_rt_sigaction"))
@_SYSCALL_RT_SIGACTION_NAME
@_SYSCALL_RT_SIGACTION32_REGARGS
@_SYSCALL_RT_SIGACTION_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGACTION_REGARGS_STORE %)
}
probe nd_syscall.rt_sigaction32.return = nd1_syscall.rt_sigaction32.return!, nd2_syscall.rt_sigaction32.return!, tp_syscall.rt_sigaction32.return
{ }
probe nd1_syscall.rt_sigaction32.return =
kprobe.function("sys32_rt_sigaction").return ?,
kprobe.function("compat_sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigaction32.return =
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigaction").return ?
{
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigaction32.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_rt_sigaction"))
@_SYSCALL_RT_SIGACTION_NAME
@SYSC_RETVALSTR($ret)
}
|
