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# reboot _____________________________________________________
#
# long sys_reboot(int magic1,
# int magic2,
# unsigned int cmd,
# void __user * arg)
#
@define _SYSCALL_REBOOT_NAME
%(
name = "reboot"
%)
@define _SYSCALL_REBOOT_ARGSTR
%(
argstr = sprintf("%s, %s, %s, %p", magic_str, magic2_str, flag_str, arg_uaddr)
%)
@define _SYSCALL_REBOOT_REGARGS
%(
magic = int_arg(1)
magic_str = _reboot_magic_str(magic)
magic2 = int_arg(2)
magic2_str =_reboot_magic_str(magic2)
flag = uint_arg(3)
flag_str = _reboot_flag_str(flag)
arg_uaddr = pointer_arg(4)
%)
@define _SYSCALL_REBOOT_REGARGS_STORE
%(
if (@probewrite(magic))
set_int_arg(1, magic)
if (@probewrite(magic2))
set_int_arg(2, magic2)
if (@probewrite(flag))
set_uint_arg(3, flag)
if (@probewrite(arg_uaddr))
set_pointer_arg(4, arg_uaddr)
%)
probe syscall.reboot = dw_syscall.reboot !, nd_syscall.reboot ? {}
probe syscall.reboot.return = dw_syscall.reboot.return !,
nd_syscall.reboot.return ? {}
# dw_reboot _____________________________________________________
probe dw_syscall.reboot = kernel.function("sys_reboot").call
{
@_SYSCALL_REBOOT_NAME
magic = __int32($magic1)
magic_str = _reboot_magic_str(__int32($magic1))
magic2 = __int32($magic2)
magic2_str =_reboot_magic_str(__int32($magic2))
flag = __uint32($cmd)
flag_str = _reboot_flag_str(__uint32($cmd))
arg_uaddr = $arg
@_SYSCALL_REBOOT_ARGSTR
}
probe dw_syscall.reboot.return = kernel.function("sys_reboot").return
{
@_SYSCALL_REBOOT_NAME
@SYSC_RETVALSTR($return)
}
# nd_reboot _____________________________________________________
probe nd_syscall.reboot = nd1_syscall.reboot!, nd2_syscall.reboot!, tp_syscall.reboot
{ }
probe nd1_syscall.reboot = kprobe.function("sys_reboot") ?
{
@_SYSCALL_REBOOT_NAME
asmlinkage()
@_SYSCALL_REBOOT_REGARGS
@_SYSCALL_REBOOT_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.reboot = kprobe.function(@arch_syscall_prefix "sys_reboot") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_REBOOT_NAME
@_SYSCALL_REBOOT_REGARGS
@_SYSCALL_REBOOT_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_REBOOT_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.reboot = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_reboot"), @const("__NR_compat_reboot"))
@_SYSCALL_REBOOT_NAME
@_SYSCALL_REBOOT_REGARGS
@_SYSCALL_REBOOT_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_REBOOT_REGARGS_STORE %)
}
probe nd_syscall.reboot.return = nd1_syscall.reboot.return!, nd2_syscall.reboot.return!, tp_syscall.reboot.return
{ }
probe nd1_syscall.reboot.return = kprobe.function("sys_reboot").return ?
{
@_SYSCALL_REBOOT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.reboot.return = kprobe.function(@arch_syscall_prefix "sys_reboot").return ?
{
@_SYSCALL_REBOOT_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.reboot.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_reboot"), @const("__NR_compat_reboot"))
@_SYSCALL_REBOOT_NAME
@SYSC_RETVALSTR($ret)
}
|
