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# rt_sigpending ______________________________________________
#
# long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize)
# COMPAT_SYSCALL_DEFINE2(rt_sigpending, compat_sigset_t __user *, uset,
# compat_size_t, sigsetsize)
# asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
# compat_size_t sigsetsize)
#
@define _SYSCALL_RT_SIGPENDING_NAME
%(
name = "rt_sigpending"
%)
@define _SYSCALL_RT_SIGPENDING_ARGSTR
%(
argstr = sprintf("%p, %u", set_uaddr, sigsetsize)
%)
@define _SYSCALL_RT_SIGPENDING_REGARGS
%(
set_uaddr = pointer_arg(1)
sigsetsize = ulong_arg(2)
%)
@define _SYSCALL_RT_SIGPENDING_REGARGS_STORE
%(
if (@probewrite(set_uaddr))
set_pointer_arg(1, set_uaddr)
if (@probewrite(sigsetsize))
set_ulong_arg(2, sigsetsize)
%)
probe syscall.rt_sigpending = dw_syscall.rt_sigpending !,
nd_syscall.rt_sigpending ? {}
probe syscall.rt_sigpending.return = dw_syscall.rt_sigpending.return !,
nd_syscall.rt_sigpending.return ? {}
# dw_rt_sigpending _____________________________________________________
probe dw_syscall.rt_sigpending = __syscall.rt_sigpending ?,
kernel.function("compat_sys_rt_sigpending").call !,
kernel.function("sys32_rt_sigpending").call ?
{
@_SYSCALL_RT_SIGPENDING_NAME
set_uaddr = @choose_defined($uset, $set)
sigsetsize = @__compat_ulong($sigsetsize)
@_SYSCALL_RT_SIGPENDING_ARGSTR
}
probe __syscall.rt_sigpending = kernel.function("sys_rt_sigpending").call ?
{
@__syscall_gate(@const("__NR_rt_sigpending"))
}
probe dw_syscall.rt_sigpending.return = __syscall.rt_sigpending.return ?,
kernel.function("compat_sys_rt_sigpending").return !,
kernel.function("sys32_rt_sigpending").return ?
{
@_SYSCALL_RT_SIGPENDING_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.rt_sigpending.return =
kernel.function("sys_rt_sigpending").return ?
{
@__syscall_gate(@const("__NR_rt_sigpending"))
}
# nd_rt_sigpending _____________________________________________________
probe nd_syscall.rt_sigpending = nd1_syscall.rt_sigpending!, nd2_syscall.rt_sigpending!, tp_syscall.rt_sigpending
{ }
probe nd1_syscall.rt_sigpending = __nd1_syscall.rt_sigpending ?,
__nd1_syscall.compat_rt_sigpending ?
{
@_SYSCALL_RT_SIGPENDING_NAME
asmlinkage()
@_SYSCALL_RT_SIGPENDING_REGARGS
@_SYSCALL_RT_SIGPENDING_ARGSTR
}
probe __nd1_syscall.rt_sigpending = kprobe.function("sys_rt_sigpending") ?
{
@__syscall_gate(@const("__NR_rt_sigpending"))
}
probe __nd1_syscall.compat_rt_sigpending =
kprobe.function("compat_sys_rt_sigpending") !,
kprobe.function("sys32_rt_sigpending") ?
{
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigpending =
kprobe.function(@arch_syscall_prefix "sys_rt_sigpending") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigpending") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_RT_SIGPENDING_NAME
@_SYSCALL_RT_SIGPENDING_REGARGS
@_SYSCALL_RT_SIGPENDING_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGPENDING_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigpending = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigpending"), @const("__NR_compat_rt_sigpending"))
@_SYSCALL_RT_SIGPENDING_NAME
@_SYSCALL_RT_SIGPENDING_REGARGS
@_SYSCALL_RT_SIGPENDING_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_RT_SIGPENDING_REGARGS_STORE %)
}
probe nd_syscall.rt_sigpending.return = nd1_syscall.rt_sigpending.return!, nd2_syscall.rt_sigpending.return!, tp_syscall.rt_sigpending.return
{ }
probe nd1_syscall.rt_sigpending.return =
__nd1_syscall.rt_sigpending.return ?,
__nd1_syscall.compat_rt_sigpending.return ?
{
@_SYSCALL_RT_SIGPENDING_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.rt_sigpending.return =
kprobe.function("sys_rt_sigpending").return ?
{
@__syscall_gate(@const("__NR_rt_sigpending"))
}
probe __nd1_syscall.compat_rt_sigpending.return =
kprobe.function("compat_sys_rt_sigpending").return !,
kprobe.function("sys32_rt_sigpending").return ?
{
}
/* kernel 4.17+ */
probe nd2_syscall.rt_sigpending.return =
kprobe.function(@arch_syscall_prefix "sys_rt_sigpending").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_rt_sigpending").return ?
{
@_SYSCALL_RT_SIGPENDING_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rt_sigpending.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rt_sigpending"), @const("__NR_compat_rt_sigpending"))
@_SYSCALL_RT_SIGPENDING_NAME
@SYSC_RETVALSTR($ret)
}
|
