commit 01293b6def49c480c01d9c61e43fa1fe74c28506
Author: drygdryg <drygdryg2014@yandex.com>
Date:   Wed Sep 2 23:51:50 2020 +0300

    Initial commit

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..c8a7988
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Victor Golovanenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/wpspin.nim b/wpspin.nim
new file mode 100644
index 0000000..3dd10e8
--- /dev/null
+++ b/wpspin.nim
@@ -0,0 +1,425 @@
+import std / [strutils, strformat, json]
+
+const mac_separators_replace = {"-": ":", ".": ":"}
+const mac_separators_remove = {":": "", "-": "", ".": ""}
+
+proc pin_checksum(pincode: uint32): int =
+  #[
+  Standard WPS checksum algorithm.
+  @pin — A 7 digit pin to calculate the checksum for.
+  Returns the checksum value.
+  ]#
+  var pin = int(pincode)
+  var accum = 0
+  while pin != 0:
+    accum += 3 * (pin mod 10)
+    pin = int(pin / 10)
+    accum += pin mod 10
+    pin = int(pin / 10)
+  return int((10 - accum mod 10) mod 10)
+
+proc add_checksum(pin: uint32): int = int(pin) * 10 + pin_checksum(pin)
+
+proc pin24(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  return intToStr(add_checksum(uint32(fromHex[uint32](mac_str[6..11]) mod 10000000)), 8)
+
+proc pin28(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint32](mac_str[5..11]) mod 10000000)), 8)
+
+proc pin32(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint32](mac_str[4..11]) mod 10000000)), 8)
+
+proc pin36(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint64](mac_str[3..11]) mod 10000000)), 8)
+
+proc pin40(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint64](mac_str[2..11]) mod 10000000)), 8)
+
+proc pin44(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint64](mac_str[1..11]) mod 10000000)), 8)
+
+proc pin48(mac: string): string =
+  let mac_str = mac.multiReplace(mac_separators_remove)
+  intToStr(add_checksum(uint32(fromHex[uint64](mac_str) mod 10000000)), 8)
+
+proc pinDLink(mac: string): string =
+  let nic = fromHex[uint32](mac.multiReplace(mac_separators_remove)[6..11])
+  var pin: uint32 = nic xor 0x55AA55
+  pin = pin xor (((pin and 0xF) shl 4) +
+                 ((pin and 0xF) shl 8) +
+                 ((pin and 0xF) shl 12) +
+                 ((pin and 0xF) shl 16) +
+                 ((pin and 0xF) shl 20))
+  pin = pin mod 10000000
+  if pin < 1000000:
+    pin += ((pin mod 9) * 1000000) + 1000000
+  return intToStr(add_checksum(pin), 8)
+
+proc pinDLink1(mac: string): string =
+  var nic = fromHex[uint32](mac.multiReplace(mac_separators_remove)[6..11])
+  var pin: uint32 = (nic + 1) xor 0x55AA55
+  pin = pin xor (((pin and 0xF) shl 4) +
+                 ((pin and 0xF) shl 8) +
+                 ((pin and 0xF) shl 12) +
+                 ((pin and 0xF) shl 16) +
+                 ((pin and 0xF) shl 20))
+  pin = pin mod 10000000
+  if pin < 1000000:
+    pin += ((pin mod 9) * 1000000) + 1000000
+  return intToStr(add_checksum(pin), 8)
+
+proc pinASUS(mac: string): string =
+  var b: array[6, uint16]
+  var i: int = 0
+  for e in mac.split(':'):
+    b[i] = fromHex[uint16](e)
+    i.inc()
+  var pin_code: string = ""
+  for i in 0'u16..<7'u16:
+    pin_code.addInt int((b[i mod 6] + b[5]) mod (10'u16 - (i + b[1] + b[2] + b[3] + b[4] + b[5]) mod 7'u16))
+  return intToStr(add_checksum(uint32(parseInt(pin_code))), 8)
+
+proc pinAirocon(mac: string): string =
+  var b: array[6, uint32]
+  var i: int = 0
+  for e in mac.split(':'):
+    b[i] = fromHex[uint32](e)
+    i.inc()
+  let pin = ((b[0] + b[1]) mod 10'u32) +
+            (((b[5] + b[0]) mod 10) * 10'u32) +
+            (((b[4] + b[5]) mod 10) * 100'u32) +
+            (((b[3] + b[4]) mod 10) * 1000'u32) +
+            (((b[2] + b[3]) mod 10) * 10000'u32) +
+            (((b[1] + b[2]) mod 10) * 100000'u32) +
+            (((b[0] + b[1]) mod 10) * 1000000'u32)
+  return intToStr(add_checksum(pin), 8)
+
+
+type AlgorithmMode = enum
+  ALGO_MAC,
+  ALGO_EMPTY,
+  ALGO_STATIC
+
+type Algorithm = object
+  id: string
+  name: string
+  mode: AlgorithmMode
+  mac_substr: seq[string]
+  generator: proc(mac: string): string
+
+
+const algorithms = [
+  Algorithm(
+    id: "pin24",
+    name: "24-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @["04BF6D", "0E5D4E", "107BEF", "14A9E3", "28285D", "2A285D", "32B2DC", "381766", "404A03", "4E5D4E", "5067F0", "5CF4AB", "6A285D", "8E5D4E", "AA285D", "B0B2DC", "C86C87", "CC5D4E", "CE5D4E", "EA285D", "E243F6", "EC43F6", "EE43F6", "F2B2DC", "FCF528", "FEF528", "4C9EFF", "0014D1", "D8EB97", "1C7EE5", "84C9B2", "FC7516", "14D64D", "9094E4", "BCF685", "C4A81D", "00664B", "087A4C", "14B968", "2008ED", "346BD3", "4CEDDE", "786A89", "88E3AB", "D46E5C", "E8CD2D", "EC233D", "ECCB30", "F49FF3", "20CF30", "90E6BA", "E0CB4E", "D4BF7F4", "F8C091", "001CDF", "002275", "08863B", "00B00C", "081075", "C83A35", "0022F7", "001F1F", "00265B", "68B6CF", "788DF7", "BC1401", "202BC1", "308730", "5C4CA9", "62233D", "623CE4", "623DFF", "6253D4", "62559C", "626BD3", "627D5E", "6296BF", "62A8E4", "62B686", "62C06F", "62C61F", "62C714", "62CBA8", "62CDBE", "62E87B", "6416F0", "6A1D67", "6A233D", "6A3DFF", "6A53D4", "6A559C", "6A6BD3", "6A96BF", "6A7D5E", "6AA8E4", "6AC06F", "6AC61F", "6AC714", "6ACBA8", "6ACDBE", "6AD15E", "6AD167", "721D67", "72233D", "723CE4", "723DFF", "7253D4", "72559C", "726BD3", "727D5E", "7296BF", "72A8E4", "72C06F", "72C61F", "72C714", "72CBA8", "72CDBE", "72D15E", "72E87B", "0026CE", "9897D1", "E04136", "B246FC", "E24136", "00E020", "5CA39D", "D86CE9", "DC7144", "801F02", "E47CF9", "000CF6", "00A026", "A0F3C1", "647002", "B0487A", "F81A67", "F8D111", "34BA9A", "B4944E"],
+    generator: pin24
+  ),
+  Algorithm(
+    id: "pin28",
+    name: "28-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @["200BC7", "4846FB", "D46AA8", "F84ABF"],
+    generator: pin28
+  ),
+  Algorithm(
+    id: "pin32",
+    name: "32-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @["000726", "D8FEE3", "FC8B97", "1062EB", "1C5F2B", "48EE0C", "802689", "908D78", "E8CC18", "2CAB25", "10BF48", "14DAE9", "3085A9", "50465D", "5404A6", "C86000", "F46D04", "3085A9", "801F02"],
+    generator: pin32
+  ),
+  Algorithm(
+    id: "pin36",
+    name: "36-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @[],
+    generator: pin36
+  ),
+  Algorithm(
+    id: "pin40",
+    name: "40-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @[],
+    generator: pin40
+  ),
+  Algorithm(
+    id: "pin44",
+    name: "44-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @[],
+    generator: pin44
+  ),
+  Algorithm(
+    id: "pin48",
+    name: "48-bit PIN",
+    mode: ALGO_MAC,
+    mac_substr: @[],
+    generator: pin48
+  ),
+  Algorithm(
+    id: "pinDLink",
+    name: "D-Link PIN",
+    mode: ALGO_MAC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "84C9B2", "A0AB1B", "B8A386", "C0A0BB", "CCB255", "FC7516", "0014D1", "D8EB97"],
+    generator: pinDLink
+  ),
+  Algorithm(
+    id: "pinDLink1",
+    name: "D-Link PIN +1",
+    mode: ALGO_MAC,
+    mac_substr: @["0018E7", "00195B", "001CF0", "001E58", "002191", "0022B0", "002401", "00265A", "14D64D", "1C7EE5", "340804", "5CD998", "84C9B2", "B8A386", "C8BE19", "C8D3A3", "CCB255", "0014D1"],
+    generator: pinDLink1
+  ),
+  Algorithm(
+    id:"pinASUS",
+    name: "ASUS PIN",
+    mode: ALGO_MAC,
+    mac_substr: @["049226", "04D9F5", "08606E", "0862669", "107B44", "10BF48", "10C37B", "14DDA9", "1C872C", "1CB72C", "2C56DC", "2CFDA1", "305A3A", "382C4A", "38D547", "40167E", "50465D", "54A050", "6045CB", "60A44C", "704D7B", "74D02B", "7824AF", "88D7F6", "9C5C8E", "AC220B", "AC9E17", "B06EBF", "BCEE7B", "C860007", "D017C2", "D850E6", "E03F49", "F0795978", "F832E4", "00072624", "0008A1D3", "00177C", "001EA6", "00304FB", "00E04C0", "048D38", "081077", "081078", "081079", "083E5D", "10FEED3C", "181E78", "1C4419", "2420C7", "247F20", "2CAB25", "3085A98C", "3C1E04", "40F201", "44E9DD", "48EE0C", "5464D9", "54B80A", "587BE906", "60D1AA21", "64517E", "64D954", "6C198F", "6C7220", "6CFDB9", "78D99FD", "7C2664", "803F5DF6", "84A423", "88A6C6", "8C10D4", "8C882B00", "904D4A", "907282", "90F65290", "94FBB2", "A01B29", "A0F3C1E", "A8F7E00", "ACA213", "B85510", "B8EE0E", "BC3400", "BC9680", "C891F9", "D00ED90", "D084B0", "D8FEE3", "E4BEED", "E894F6F6", "EC1A5971", "EC4C4D", "F42853", "F43E61", "F46BEF", "F8AB05", "FC8B97", "7062B8", "78542E", "C0A0BB8C", "C412F5", "C4A81D", "E8CC18", "EC2280", "F8E903F4"],
+    generator: pinASUS
+  ),
+  Algorithm(
+    id: "pinAirocon",
+    name: "Airocon Realtek",
+    mode: ALGO_MAC,
+    mac_substr: @["0007262F", "000B2B4A", "000EF4E7", "001333B", "00177C", "001AEF", "00E04BB3", "02101801", "0810734", "08107710", "1013EE0", "2CAB25C7", "788C54", "803F5DF6", "94FBB2", "BC9680", "F43E61", "FC8B97"],
+    generator: pinAirocon
+  ),
+  Algorithm(
+    id: "pinEmpty",
+    name: "Empty PIN",
+    mode: ALGO_EMPTY,
+    mac_substr: @["E46F13", "EC2280", "58D56E", "1062EB", "10BEF5", "1C5F2B", "802689", "A0AB1B", "74DADA", "9CD643", "68A0F6", "0C96BF", "20F3A3", "ACE215", "C8D15E", "000E8F", "D42122", "3C9872", "788102", "7894B4", "D460E3", "E06066", "004A77", "2C957F", "64136C", "74A78E", "88D274", "702E22", "74B57E", "789682", "7C3953", "8C68C8", "D476EA", "344DEA", "38D82F", "54BE53", "709F2D", "94A7B7", "981333", "CAA366", "D0608C"],
+    generator: proc(mac: string): string = ""
+  ),
+  Algorithm(
+    id: "pinCisco",
+    name: "Cisco",
+    mode: ALGO_STATIC,
+    mac_substr: @["001A2B", "00248C", "002618", "344DEB", "7071BC", "E06995", "E0CB4E", "7054F5"],
+    generator: proc (mac: string): string = "12345670" 
+  ),
+  Algorithm(
+    id: "pinBrcm1",
+    name: "Broadcom 1",
+    mode: ALGO_STATIC,
+    mac_substr: @["ACF1DF", "BCF685", "C8D3A3", "988B5D", "001AA9", "14144B", "EC6264"],
+    generator: proc (mac: string): string = "20172527"
+  ),
+  Algorithm(
+    id: "pinBrcm2",
+    name: "Broadcom 2",
+    mode: ALGO_STATIC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "84C9B2", "B8A386", "BCF685", "C8BE19"],
+    generator: proc (mac: string): string = "46264848"
+  ),
+  Algorithm(
+    id: "pinBrcm3",
+    name: "Broadcom 3",
+    mode: ALGO_STATIC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "B8A386", "BCF685", "C8BE19", "7C034C"],
+    generator: proc (mac: string): string = "76229909"
+  ),
+  Algorithm(
+    id: "pinBrcm4",
+    name: "Broadcom 4",
+    mode: ALGO_STATIC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "84C9B2", "B8A386", "BCF685", "C8BE19", "C8D3A3", "CCB255", "FC7516", "204E7F", "4C17EB", "18622C", "7C03D8", "D86CE9"],
+    generator: proc (mac: string): string = "62327145"
+  ),
+  Algorithm(
+    id: "pinBrcm5",
+    name: "Broadcom 5",
+    mode: ALGO_STATIC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "84C9B2", "B8A386", "BCF685", "C8BE19", "C8D3A3", "CCB255", "FC7516", "204E7F", "4C17EB", "18622C", "7C03D8", "D86CE9"],
+    generator: proc (mac: string): string = "10864111"
+  ),
+  Algorithm(
+    id: "pinBrcm6",
+    name: "Broadcom 6",
+    mode: ALGO_STATIC,
+    mac_substr: @["14D64D", "1C7EE5", "28107B", "84C9B2", "B8A386", "BCF685", "C8BE19", "C8D3A3", "CCB255", "FC7516", "204E7F", "4C17EB", "18622C", "7C03D8", "D86CE9"],
+    generator: proc (mac: string): string = "31957199"
+  ),
+  Algorithm(
+    id: "pinAirc1",
+    name: "Airocon 1",
+    mode: ALGO_STATIC,
+    mac_substr: @["181E78", "40F201", "44E9DD", "D084B0"],
+    generator: proc (mac: string): string = "30432031"
+  ),
+  Algorithm(
+    id: "pinAirc2",
+    name: "Airocon 2",
+    mode: ALGO_STATIC,
+    mac_substr: @["84A423", "8C10D4", "88A6C6"],
+    generator: proc (mac: string): string = "71412252"
+  ),
+  Algorithm(
+    id: "pinDSL2740R",
+    name: "DSL-2740R",
+    mode: ALGO_STATIC,
+    mac_substr: @["00265A", "1CBDB9", "340804", "5CD998", "84C9B2", "FC7516"],
+    generator: proc (mac: string): string = "68175542"
+  ),
+  Algorithm(
+    id: "pinRealtek1",
+    name: "Realtek 1",
+    mode: ALGO_STATIC,
+    mac_substr: @["0014D1", "000C42", "000EE8"],
+    generator: proc (mac: string): string = "95661469"
+  ),
+  Algorithm(
+    id: "pinRealtek2",
+    name: "Realtek 2",
+    mode: ALGO_STATIC,
+    mac_substr: @["007263", "E4BEED"],
+    generator: proc (mac: string): string = "95719115"
+  ),
+  Algorithm(
+    id: "pinRealtek3",
+    name: "Realtek 3",
+    mode: ALGO_STATIC,
+    mac_substr: @["08C6B3"],
+    generator: proc (mac: string): string = "48563710"
+  ),
+  Algorithm(
+    id: "pinUpvel",
+    name: "Upvel",
+    mode: ALGO_STATIC,
+    mac_substr: @["784476", "D4BF7F0", "F8C091"],
+    generator: proc (mac: string): string = "20854836"
+  ),
+  Algorithm(
+    id: "pinUR814AC",
+    name: "UR-814AC",
+    mode: ALGO_STATIC,
+    mac_substr: @["D4BF7F60"],
+    generator: proc (mac: string): string = "43977680"
+  ),
+  Algorithm(
+    id: "pinUR825AC",
+    name: "UR-825AC",
+    mode: ALGO_STATIC,
+    mac_substr: @["D4BF7F5"],
+    generator: proc (mac: string): string = "05294176"
+  ),
+  Algorithm(
+    id: "pinOnlime",
+    name: "Onlime",
+    mode: ALGO_STATIC,
+    mac_substr: @["D4BF7F", "F8C091", "144D67", "784476", "0014D1"],
+    generator: proc (mac: string): string = "99956042"
+  ),
+  Algorithm(
+    id: "pinEdimax",
+    name: "Edimax",
+    mode: ALGO_STATIC,
+    mac_substr: @["801F02", "00E04C"],
+    generator: proc (mac: string): string = "35611530"
+  ),
+  Algorithm(
+    id: "pinThomson",
+    name: "Thomson",
+    mode: ALGO_STATIC,
+    mac_substr: @["002624", "4432C8", "88F7C7", "CC03FA"],
+    generator: proc (mac: string): string = "67958146"
+  ),
+  Algorithm(
+    id: "pinHG532x",
+    name: "HG532x",
+    mode: ALGO_STATIC,
+    mac_substr: @["00664B", "086361", "087A4C", "0C96BF", "14B968", "2008ED", "2469A5", "346BD3", "786A89", "88E3AB", "9CC172", "ACE215", "D07AB5", "CCA223", "E8CD2D", "F80113", "F83DFF"],
+    generator: proc (mac: string): string = "34259283"
+  ),
+  Algorithm(
+    id: "pinH108L",
+    name: "H108L",
+    mode: ALGO_STATIC,
+    mac_substr: @["4C09B4", "4CAC0A", "84742A4", "9CD24B", "B075D5", "C864C7", "DC028E", "FCC897"],
+    generator: proc (mac: string): string = "94229882"
+  ),
+  Algorithm(
+    id: "pinONO",
+    name: "CBN ONO",
+    mode: ALGO_STATIC,
+    mac_substr: @["5C353B", "DC537C"],
+    generator: proc (mac: string): string = "95755212"
+  )
+]
+
+type PinCode = object
+  algo_id: string
+  name: string
+  mode: AlgorithmMode
+  pin: string
+
+proc generateSuggested(mac: string): seq[PinCode] =
+  let blank_mac = mac.multiReplace(mac_separators_remove)
+  var pins: seq[PinCode] = @[]
+  for algo in algorithms:
+    for mask in algo.mac_substr:
+      if blank_mac.startswith(mask):
+        pins.add(
+          PinCode(
+            algo_id: algo.id,
+            name: algo.name,
+            mode: algo.mode,
+            pin: algo.generator(mac)
+          )
+        )
+        break
+  return pins
+
+proc generateAll(mac: string): seq[PinCode] =
+  var pins = generateSuggested(mac)
+  var algos: seq[string] = @[]
+  for pin in pins:
+    algos.add(pin.algo_id)
+  for algo in algorithms:
+    if algo.id notin algos:
+      pins.add(
+        PinCode(
+          algo_id: algo.id,
+          name: algo.name,
+          mode: algo.mode,
+          pin: algo.generator(mac)
+        )
+      )
+  return pins
+
+
+when is_main_module:
+  from os import parseCmdLine
+  import argparse
+
+  let p = newParser("wpspin"):
+    help("WPS PIN generator which uses known MAC address based algorithms commonly found in Wi-Fi routers firmware to generate their default PINs.")
+    flag("-A", "--get-all", help="get all PIN codes in addition to the suggested ones")
+    flag("-J", "--json", help="return results in JSON representation")
+    arg("mac", help="target MAC address to generate PIN code. Example: 11:22:33:44:55:66 or 11-22-33-44-55-66")
+
+  let args = p.parse()
+
+  if (args.mac != "") and (not args.help):
+    let mac = args.mac.multiReplace(mac_separators_replace).toUpperAscii()
+    let pins = if args.get_all: generateAll(mac) else: generateSuggested(mac)
+    if args.json:
+      echo $(%*pins)
+    else:
+      if pins.len != 0:
+        echo &"""{"PIN":<8}   {"Name"}"""
+
+        for pin in pins:
+          let pin_name = if pin.mode == ALGO_STATIC: "Static PIN -- " & pin.name else: pin.name
+          let pin_value = if pin.mode == ALGO_EMPTY: "<empty>" else: pin.pin
+          echo &"{pin_value:<8} | {pin_name}"
+      else:
+        echo "No PINs found -- try to get all PINs (-A)"