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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.loop
-- OpenBSD loopback encapsulation (loop) part of a packet
--
-- The loop part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- family
-- The link-layer header describing what type of packet is encapsulated.
module(...,package.seeall)
require("dnsjit.core.object.loop_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_loop_t"
local core_object_loop_t
local Loop = {}
-- Return the textual type of the object.
function Loop:type()
return "loop"
end
-- Return the previous object.
function Loop:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Loop:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Loop:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Loop:copy()
return C.core_object_loop_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Loop:free()
C.core_object_loop_free(self)
end
core_object_loop_t = ffi.metatype(t_name, { __index = Loop })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Loop
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