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proc/25542/task/25542/cwd/usr/share/systemtap/tapset/linux/_[ Not.Writable ]

File://proc/25542/task/25542/cwd/usr/share/systemtap/tapset/linux/sysc_mkdir.stp

# mkdir ______________________________________________________
# long sys_mkdir(const char __user * pathname, int mode)

@define _SYSCALL_MKDIR_NAME
%(
	name = "mkdir"
%)

@define _SYSCALL_MKDIR_ARGSTR
%(
	argstr = sprintf("%s, %#o", pathname, mode)
%)

@define _SYSCALL_MKDIR_REGARGS
%(
	pathname_uaddr = pointer_arg(1)
	pathname = user_string_quoted(pathname_uaddr)
	mode = uint_arg(2)
%)

probe syscall.mkdir = dw_syscall.mkdir !, nd_syscall.mkdir ? {}
probe syscall.mkdir.return = dw_syscall.mkdir.return !, nd_syscall.mkdir.return ? {}

# dw_mkdir _____________________________________________________

probe dw_syscall.mkdir = kernel.function("sys_mkdir").call
{
	@_SYSCALL_MKDIR_NAME
	pathname_uaddr = $pathname
	pathname = user_string_quoted($pathname)
	mode = __uint32($mode)
	@_SYSCALL_MKDIR_ARGSTR
}
probe dw_syscall.mkdir.return = kernel.function("sys_mkdir").return
{
	@_SYSCALL_MKDIR_NAME
	@SYSC_RETVALSTR($return)
}

# nd_mkdir _____________________________________________________

probe nd_syscall.mkdir = nd1_syscall.mkdir!, nd2_syscall.mkdir!, tp_syscall.mkdir
  { }

probe nd1_syscall.mkdir = kprobe.function("sys_mkdir") ?
{
	@_SYSCALL_MKDIR_NAME
	asmlinkage()
	@_SYSCALL_MKDIR_REGARGS
	@_SYSCALL_MKDIR_ARGSTR
}

/* kernel 4.17+ */
probe nd2_syscall.mkdir = kprobe.function(@arch_syscall_prefix "sys_mkdir")
{
	__set_syscall_pt_regs(pointer_arg(1))
	@_SYSCALL_MKDIR_NAME
	@_SYSCALL_MKDIR_REGARGS
	@_SYSCALL_MKDIR_ARGSTR
}

/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mkdir = kernel.trace("sys_enter")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_mkdir"), @const("__NR_compat_mkdir"))
	@_SYSCALL_MKDIR_NAME
	@_SYSCALL_MKDIR_REGARGS
	@_SYSCALL_MKDIR_ARGSTR
}

probe nd_syscall.mkdir.return = nd1_syscall.mkdir.return!, nd2_syscall.mkdir.return!, tp_syscall.mkdir.return
  { }

probe nd1_syscall.mkdir.return = kprobe.function("sys_mkdir").return ?
{
	@_SYSCALL_MKDIR_NAME
	@SYSC_RETVALSTR(returnval())
}

/* kernel 4.17+ */
probe nd2_syscall.mkdir.return = kprobe.function(@arch_syscall_prefix "sys_mkdir").return
{
	@_SYSCALL_MKDIR_NAME
	@SYSC_RETVALSTR(returnval())
}
 
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mkdir.return = kernel.trace("sys_exit")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_mkdir"), @const("__NR_compat_mkdir"))
	@_SYSCALL_MKDIR_NAME
	@SYSC_RETVALSTR($ret)
}

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Regist : 09-12-2024	Expired : 01-12-2027