90 lines
2.5 KiB
Lua
90 lines
2.5 KiB
Lua
--
|
|
-- socks.lua: SOCKS service detection plugin
|
|
--
|
|
-- Copyright (c) 2015, Přemysl Janouch <p.janouch@gmail.com>
|
|
--
|
|
-- Permission to use, copy, modify, and/or distribute this software for any
|
|
-- purpose with or without fee is hereby granted, provided that the above
|
|
-- copyright notice and this permission notice appear in all copies.
|
|
--
|
|
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
-- SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
-- OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
-- CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
--
|
|
|
|
-- This plugin serves as an example of how to write Lua plugins for ponymap
|
|
|
|
ponymap.check_api_version (1)
|
|
|
|
-- SOCKS 4
|
|
|
|
local Socks4 = {}
|
|
Socks4.__index = Socks4
|
|
|
|
function Socks4.new (unit)
|
|
unit:write (string.pack ("> I1 I1 I2 I1 I1 I1 I1 z",
|
|
4, 1, 80, 127, 0, 0, 1, ""))
|
|
return setmetatable ({ unit = unit, buf = "" }, Socks4)
|
|
end
|
|
|
|
function Socks4:on_data (data)
|
|
self.buf = self.buf .. data
|
|
if #self.buf >= 8 then
|
|
null, code = string.unpack ("> I1 I1", self.buf)
|
|
if null == 0 and code >= 90 and code <= 93 then
|
|
self.unit:set_success (true)
|
|
end
|
|
self.unit:stop ()
|
|
end
|
|
end
|
|
|
|
-- SOCKS 4A
|
|
|
|
local Socks4A = {}
|
|
Socks4A.__index = Socks4A
|
|
|
|
function Socks4A.new (unit)
|
|
unit:write (string.pack ("> I1 I1 I2 I4 z z",
|
|
4, 1, 80, 1, "", "google.com"))
|
|
return setmetatable ({ unit = unit, buf = "" }, Socks4A)
|
|
end
|
|
|
|
Socks4A.on_data = Socks4.on_data
|
|
|
|
-- SOCKS 5
|
|
|
|
local Socks5 = {}
|
|
Socks5.__index = Socks5
|
|
|
|
function Socks5.new (unit)
|
|
unit:write (string.pack ("> I1 I1 I1", 5, 1, 0))
|
|
return setmetatable ({ unit = unit, buf = "" }, Socks5)
|
|
end
|
|
|
|
function Socks5:on_data (data)
|
|
self.buf = self.buf .. data
|
|
if #self.buf >= 2 then
|
|
version, result = string.unpack ("> I1 I1", self.buf)
|
|
if version == 5 and (result == 0 or result == 255) then
|
|
if result == 0 then
|
|
self.unit:add_info ("no authentication required")
|
|
end
|
|
self.unit:set_success (true)
|
|
end
|
|
self.unit:stop ()
|
|
end
|
|
end
|
|
|
|
-- Register everything
|
|
|
|
ponymap.register_service { name="SOCKS4", flags=0, new_scan=Socks4.new }
|
|
|
|
-- At the moment this is nearly useless
|
|
-- ponymap.register_service { name="SOCKS4A", flags=0, new_scan=Socks4A.new }
|
|
|
|
ponymap.register_service { name="SOCKS5", flags=0, new_scan=Socks5.new }
|