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# get_robust_list ____________________________________________
# SYSCALL_DEFINE3(get_robust_list, int, pid,
# struct robust_list_head __user * __user *, head_ptr,
# size_t __user *, len_ptr)
# COMPAT_SYSCALL_DEFINE3(get_robust_list, int, pid,
# compat_uptr_t __user *, head_ptr,
# compat_size_t __user *, len_ptr)
@define _SYSCALL_GET_ROBUST_LIST_NAME
%(
name = "get_robust_list"
%)
@define _SYSCALL_GET_ROBUST_LIST_ARGSTR
%(
argstr = sprintf("%d, %p, %p", pid, list_head_uaddr, len_uaddr)
%)
@define _SYSCALL_GET_ROBUST_LIST_REGARGS
%(
pid = int_arg(1)
list_head_uaddr = pointer_arg(2)
len_uaddr = pointer_arg(3)
%)
@define _SYSCALL_GET_ROBUST_LIST_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(list_head_uaddr))
set_pointer_arg(2, list_head_uaddr)
if (@probewrite(len_uaddr))
set_pointer_arg(3, len_uaddr)
%)
probe syscall.get_robust_list = dw_syscall.get_robust_list !,
nd_syscall.get_robust_list ? {}
probe syscall.get_robust_list.return = dw_syscall.get_robust_list.return !,
nd_syscall.get_robust_list.return ? {}
# dw_get_robust_list _____________________________________________________
probe dw_syscall.get_robust_list = __syscall.get_robust_list ?,
kernel.function("compat_sys_get_robust_list") ?
{
@_SYSCALL_GET_ROBUST_LIST_NAME
pid = __int32($pid)
list_head_uaddr = @__pointer($head_ptr)
len_uaddr = @__pointer($len_ptr)
@_SYSCALL_GET_ROBUST_LIST_ARGSTR
}
probe __syscall.get_robust_list = kernel.function("sys_get_robust_list")
{
@__syscall_gate_compat_simple
}
probe dw_syscall.get_robust_list.return = __syscall.get_robust_list.return ?,
kernel.function("compat_sys_get_robust_list").return ?
{
@_SYSCALL_GET_ROBUST_LIST_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.get_robust_list.return =
kernel.function("sys_get_robust_list").return
{
@__syscall_gate_compat_simple
}
# nd_get_robust_list _____________________________________________________
probe nd_syscall.get_robust_list = nd1_syscall.get_robust_list!, nd2_syscall.get_robust_list!, tp_syscall.get_robust_list
{ }
probe nd1_syscall.get_robust_list = __nd1_syscall.get_robust_list ?,
kprobe.function("compat_sys_get_robust_list") ?
{
@_SYSCALL_GET_ROBUST_LIST_NAME
asmlinkage()
@_SYSCALL_GET_ROBUST_LIST_REGARGS
@_SYSCALL_GET_ROBUST_LIST_ARGSTR
}
probe __nd1_syscall.get_robust_list = kprobe.function("sys_get_robust_list")
{
@__syscall_gate_compat_simple
}
/* kernel 4.17+ */
probe nd2_syscall.get_robust_list =
kprobe.function(@arch_syscall_prefix "sys_get_robust_list") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_get_robust_list") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_GET_ROBUST_LIST_NAME
@_SYSCALL_GET_ROBUST_LIST_REGARGS
@_SYSCALL_GET_ROBUST_LIST_ARGSTR
},
{
@_SYSCALL_GET_ROBUST_LIST_REGARGS_STORE
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.get_robust_list = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_get_robust_list"), @const("__NR_compat_get_robust_list"))
@_SYSCALL_GET_ROBUST_LIST_NAME
@_SYSCALL_GET_ROBUST_LIST_REGARGS
@_SYSCALL_GET_ROBUST_LIST_ARGSTR
},
{
@_SYSCALL_GET_ROBUST_LIST_REGARGS_STORE
}
probe nd_syscall.get_robust_list.return = nd1_syscall.get_robust_list.return!, nd2_syscall.get_robust_list.return!, tp_syscall.get_robust_list.return
{ }
probe nd1_syscall.get_robust_list.return = __nd1_syscall.get_robust_list.return ?,
kprobe.function("compat_sys_get_robust_list").return ?
{
@_SYSCALL_GET_ROBUST_LIST_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.get_robust_list.return = kprobe.function("sys_get_robust_list").return
{
@__syscall_gate_compat_simple
}
/* kernel 4.17+ */
probe nd2_syscall.get_robust_list.return =
kprobe.function(@arch_syscall_prefix "sys_get_robust_list").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_get_robust_list").return ?
{
@_SYSCALL_GET_ROBUST_LIST_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.get_robust_list.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_get_robust_list"), @const("__NR_compat_get_robust_list"))
@_SYSCALL_GET_ROBUST_LIST_NAME
@SYSC_RETVALSTR($ret)
}
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