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