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Added library to read card info, made use of it from within mfkeys.lua script

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martin.holst@gmail.com 2013-06-07 13:23:32 +00:00
parent fd368d18f1
commit a2d82b467a
2 changed files with 111 additions and 0 deletions
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100
client/read14a.lua Normal file
View file

@ -0,0 +1,100 @@
--[[
This is a library to read 14443a tags. It can be used something like this
local reader = require('read14a')
result, err = reader.read1443a()
if not result then
print(err)
return
end
print(result.name)
--]]
-- Loads the commands-library
local cmds = require('commands')
local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds
local ISO14A_COMMAND = {
ISO14A_CONNECT = 1,
ISO14A_NO_DISCONNECT = 2,
ISO14A_APDU = 4,
ISO14A_RAW = 8,
ISO14A_REQUEST_TRIGGER = 0x10,
ISO14A_APPEND_CRC = 0x20,
ISO14A_SET_TIMEOUT = 0x40
}
local ISO14443a_TYPES = {}
ISO14443a_TYPES[0x00] = "NXP MIFARE Ultralight | Ultralight C"
ISO14443a_TYPES[0x04] = "NXP MIFARE (various !DESFire !DESFire EV1)"
ISO14443a_TYPES[0x08] = "NXP MIFARE CLASSIC 1k | Plus 2k"
ISO14443a_TYPES[0x09] = "NXP MIFARE Mini 0.3k"
ISO14443a_TYPES[0x10] = "NXP MIFARE Plus 2k"
ISO14443a_TYPES[0x11] = "NXP MIFARE Plus 4k"
ISO14443a_TYPES[0x18] = "NXP MIFARE Classic 4k | Plus 4k"
ISO14443a_TYPES[0x20] = "NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k | JCOP 31/41"
ISO14443a_TYPES[0x24] = "NXP MIFARE DESFire | DESFire EV1"
ISO14443a_TYPES[0x28] = "JCOP31 or JCOP41 v2.3.1"
ISO14443a_TYPES[0x38] = "Nokia 6212 or 6131 MIFARE CLASSIC 4K"
ISO14443a_TYPES[0x88] = "Infineon MIFARE CLASSIC 1K"
ISO14443a_TYPES[0x98] = "Gemplus MPCOS"
local function tostring_1443a(sak)
return ISO14443a_TYPES[sak] or ("Unknown (SAK=%x)"):format(sak)
end
local function parse1443a(data)
--[[
Based on this struct :
typedef struct {
byte_t uid[10];
byte_t uidlen;
byte_t atqa[2];
byte_t sak;
byte_t ats_len;
byte_t ats[256];
} __attribute__((__packed__)) iso14a_card_select_t;
--]]
local count,uid,uidlen, atqa, sak, ats_len, ats= bin.unpack('H10CH2CC',data)
uid = uid:sub(1,2*uidlen)
--print("uid, atqa, sak: ",uid, atqa, sak)
--print("TYPE: ", tostring_1443a(sak))
return { uid = uid, atqa = atqa, sak = sak, name = tostring_1443a(sak)}
end
local library = {
read1443a = function(blockNo, keys, keyType)
local command, result, info, err, data
core.clearCommandBuffer()
command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
core.SendCommand(command:getBytes())
local result = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
if result then
local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
if arg0 == 0 then
print("iso14443a card select failed");
return nil, "iso14443a card select failed"
end
data = string.sub(result,count)
info, err = parse1443a(data)
else
err ="No response from card"
end
if err then
print(err)
return nil, err
end
return info
end
}
return library

11
client/scripts/mfkeys.lua
View file

@ -12,6 +12,9 @@
local cmds = require('commands')
-- Load the default keys
local keys = require('mf_default_keys')
-- Ability to read what card is there
local reader = require('read14a')
local desc =
("This script implements check keys. It utilises a large list of default keys (currently %d keys).\
If you want to add more, just put them inside mf_default_keys.lua. "):format(#keys)
@ -103,6 +106,14 @@ local function main()
print(desc);
result, err = reader.read1443a()
if not result then
print(err)
return
end
print(("Found a %s tag"):format(result.name))
core.clearCommandBuffer()
local blockNo
local keyType = 0 -- A=0, B=1