apdu refactoring
This commit is contained in:
Kevin Redon
parent
8c7873ea43
commit
fe25fca459
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@ -46,7 +46,7 @@ to monitor bluetooth traffic
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sudo aptitude install bluez-hcidump
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sudo hcidump -x -i hci0 rfcomm
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=end
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bt = BluetoothClient.new
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bt = BluetoothSAPSerial.new
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# using SerialPort because reading the File does not work (have to find right stty options)
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io = SerialPort.new(bt.connect)
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else
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@ -63,172 +63,14 @@ DEBUG = true
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# the verbosity from common
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VERBOSE = 0
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# APDU constants (TS 102.221 10.1.2)
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# SIM Class code (TS 51.011 9.2)
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CLASS = 0xA0
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# add the address (2 bytes) to the select command (TS 51.011 9.2.1)
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SELECT = [CLASS, 0xA4, 0x00, 0x00, 0x02]
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# get the response after a select (TS 51.011 9.1)
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# add the length (P3) to get the information (= SW2 after SELECT)
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GET_RESPONSE = [CLASS, 0xC0, 0x00, 0x00]
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STATUS = [CLASS, 0xF2, 0x00, 0x00]
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# add the length (P3) to have complete command
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READ_BINARY = [CLASS,0xB0]
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READ_RECORD = [CLASS,0xB2]
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UPDATE_RECORD = [CLASS,0xDC]
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CHV1 = [CLASS,0x20,0x00,0x01,0x08]
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A38 = [CLASS,0x88,0x00,0x00,0x10]
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# file address (TS 51.011 10.7, page 105)
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MF = [0x3F,0x00]
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EF_ICCID = [0x2F,0xE2]
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DF_GSM = [0x7F,0x20]
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EF_IMSI = [0x6F,0x07] # TS 51.011 10.3.2
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DF_TELECOM = [0x7F,0x10]
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EF_MSISDN = [0x6F,0x40] # TS 51.011 10.5.5
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#=========================
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#== additionnal methods ==
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#=========================
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# transform binary string into readable hex string
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class String
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def to_hex_disp
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to_return = ""
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each_byte do |b|
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to_return += b.to_s(16).rjust(2,"0")
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to_return += " "
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end
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return to_return[0..-2].upcase
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end
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def to_hex
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to_return = ""
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each_byte do |b|
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to_return += b.to_s(16).rjust(2,"0")
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end
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return "0x"+(to_return.downcase)
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end
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def char_at(index)
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i=0
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each_char do |c|
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if i==index then
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return c
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else
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i+=1
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end
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end
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return nil
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end
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end
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# reverse the nibbles of each byte
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class Array
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# print the nibbles (often BCD)
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# - padding : the 0xf can be ignored (used as padding in BCD)
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def nibble_str(padding=false)
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# get nibble representation
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to_return = collect { |b| (b&0x0F).to_s(16)+(b>>4).to_s(16) }
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to_return = to_return.join
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# remove the padding
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to_return.gsub!('f',"") if padding
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return to_return
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end
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def to_hex_disp
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to_return = ""
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each do |b|
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to_return += b.to_s(16).rjust(2,"0")
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to_return += " "
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end
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return to_return[0..-2].upcase
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end
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def to_hex
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to_return = ""
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each do |b|
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to_return += b.to_s(16).rjust(2,"0")
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end
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return "0x"+(to_return.downcase)
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end
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end
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#=============
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#== methods ==
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#=============
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# send APDU (byte array) to card
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# returns [response,sw1,sw2]
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def transmit (apdu)
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include APDU
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# send APDU
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puts "< "+apdu.to_hex_disp if DEBUG
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resp = @client.apdu(apdu)
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puts "> "+resp.to_hex_disp if DEBUG
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# parse response
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response = resp[0..-3]
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sw1 = resp[-2]
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sw2 = resp[-1]
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sw_check(sw1,sw2)
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return response,sw1,sw2
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end
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# check if there is an error
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# TS 51.011 9.4
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def sw_check(sw1,sw2)
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# verb for the exception
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head = "SW error. "
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category = ""
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sw = " (#{sw1.to_s(16).rjust(2,'0')},#{sw2.to_s(16).rjust(2,'0')})"
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error = nil
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case sw1
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when 0x94
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category = "referencing management"
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case sw2
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when 0x00
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error = "no EF selected"
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when 0x02
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error = "out of range (invalid address)"
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when 0x04
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error = "file ID not found/pattern not found"
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when 0x08
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error = "file is inconsistent with the command"
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else
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error = "unknown"
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end
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when 0x98
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if sw2==0x04 then
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error = "not allowed or wrong PIN"
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else
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error = "security error"
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end
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when 0x6B
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error = "incorrect P1 or P2"
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when 0x67
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category = "application independent errors"
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error = "incorrect P3"
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else
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if sw1!=0x9F and sw1!=0x90 then
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error = "unknown response"
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end
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end
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raise head+category+" : "+error+sw if error
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end
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# select a file. returns the response
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def select(file)
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# select file
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response, sw1, sw2 = transmit(SELECT+file)
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# get response
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response, sw1, sw2 = transmit(GET_RESPONSE+[sw2])
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return response
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def transmit_apdu(apdu)
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return @client.apdu(apdu)
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end
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#==========
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107
src/lib/apdu.rb
107
src/lib/apdu.rb
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@ -16,6 +16,7 @@ along with SAP. If not, see <http://www.gnu.org/licenses/>.
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Copyright (C) 2011 Kevin "tsaitgaist" Redon kevredon@mail.tsaitgaist.info
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=end
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# this librarie is to centralise the APDU related work
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# transform binary string into readable hex string
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class String
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@ -78,3 +79,109 @@ class Array
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return to_return.downcase
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end
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end
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module APDU
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# APDU constants (TS 102.221 10.1.2)
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# SIM Class code (TS 51.011 9.2)
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CLASS = 0xA0
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# add the address (2 bytes) to the select command (TS 51.011 9.2.1)
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SELECT = [CLASS, 0xA4, 0x00, 0x00, 0x02]
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# get the response after a select (TS 51.011 9.1)
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# add the length (P3) to get the information (= SW2 after SELECT)
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GET_RESPONSE = [CLASS, 0xC0, 0x00, 0x00]
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STATUS = [CLASS, 0xF2, 0x00, 0x00]
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# add the length (P3) to have complete command
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READ_BINARY = [CLASS,0xB0]
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READ_RECORD = [CLASS,0xB2]
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UPDATE_RECORD = [CLASS,0xDC]
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CHV1 = [CLASS,0x20,0x00,0x01,0x08]
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A38 = [CLASS,0x88,0x00,0x00,0x10]
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# file address (TS 51.011 10.7, page 105)
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MF = [0x3F,0x00]
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EF_ICCID = [0x2F,0xE2]
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DF_GSM = [0x7F,0x20]
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EF_IMSI = [0x6F,0x07] # TS 51.011 10.3.2
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DF_TELECOM = [0x7F,0x10]
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EF_MSISDN = [0x6F,0x40] # TS 51.011 10.5.5
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# send APDU byte array
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# return : APDU response
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def transmit_apdu(apdu)
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raise NotImplementedError
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end
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# handle APDU (bayte array) to send APDU
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# returns [response,sw1,sw2]
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def transmit(apdu)
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# send APDU
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puts "< "+apdu.to_hex_disp if DEBUG
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resp = transmit_apdu(apdu)
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puts "> "+resp.to_hex_disp if DEBUG
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# parse response
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response = resp[0..-3]
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sw1 = resp[-2]
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sw2 = resp[-1]
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sw_check(sw1,sw2)
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return response,sw1,sw2
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end
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# check if there is an error
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# TS 51.011 9.4
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def sw_check(sw1,sw2)
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# verb for the exception
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head = "SW error. "
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category = ""
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sw = " (#{sw1.to_s(16).rjust(2,'0')},#{sw2.to_s(16).rjust(2,'0')})"
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error = nil
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case sw1
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when 0x94
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category = "referencing management"
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case sw2
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when 0x00
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error = "no EF selected"
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when 0x02
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error = "out of range (invalid address)"
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when 0x04
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error = "file ID not found/pattern not found"
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when 0x08
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error = "file is inconsistent with the command"
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else
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error = "unknown"
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end
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when 0x98
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if sw2==0x04 then
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error = "not allowed or wrong PIN"
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else
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error = "security error"
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end
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when 0x6B
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error = "incorrect P1 or P2"
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when 0x67
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category = "application independent errors"
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error = "incorrect P3"
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else
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if sw1!=0x9F and sw1!=0x90 then
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error = "unknown response"
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end
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end
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raise head+category+" : "+error+sw if error
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end
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# select a file. returns the response
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def select(file)
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# select file
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response, sw1, sw2 = transmit(SELECT+file)
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# get response
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response, sw1, sw2 = transmit(GET_RESPONSE+[sw2])
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return response
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end
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end
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