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# close ______________________________________________________
# long sys_close(unsigned int fd)
@define _SYSCALL_CLOSE_NAME
%(
name = "close"
%)
@define _SYSCALL_CLOSE_ARGSTR
%(
argstr = sprint(fd)
%)
@define _SYSCALL_CLOSE_REGARGS
%(
fd = int_arg(1)
%)
@define _SYSCALL_CLOSE_REGARGS_STORE
%(
if (@probewrite(fd))
set_int_arg(1, fd)
%)
probe syscall.close = dw_syscall.close !, nd_syscall.close ? {}
probe syscall.close.return = dw_syscall.close.return !, nd_syscall.close.return ? {}
# dw_close _____________________________________________________
probe dw_syscall.close = kernel.function("sys_close").call
{
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
fd = __int32($fd)
@_SYSCALL_CLOSE_ARGSTR
}
probe dw_syscall.close.return = kernel.function("sys_close").return
{
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
@SYSC_RETVALSTR($return)
}
# nd_close _____________________________________________________
probe nd_syscall.close = nd1_syscall.close!, nd2_syscall.close!, tp_syscall.close
{ }
probe nd1_syscall.close = kprobe.function("sys_close") ?
{
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
asmlinkage()
@_SYSCALL_CLOSE_REGARGS
@_SYSCALL_CLOSE_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.close = kprobe.function(@arch_syscall_prefix "sys_close") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_CLOSE_NAME
@_SYSCALL_CLOSE_REGARGS
@_SYSCALL_CLOSE_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_CLOSE_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.close = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
@_SYSCALL_CLOSE_REGARGS
@_SYSCALL_CLOSE_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_CLOSE_REGARGS_STORE %)
}
probe nd_syscall.close.return = nd1_syscall.close.return!, nd2_syscall.close.return!, tp_syscall.close.return
{ }
probe nd1_syscall.close.return = kprobe.function("sys_close").return ?
{
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.close.return = kprobe.function(@arch_syscall_prefix "sys_close").return ?
{
@_SYSCALL_CLOSE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.close.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_close"), @const("__NR_compat_close"))
@_SYSCALL_CLOSE_NAME
@SYSC_RETVALSTR($ret)
}
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