laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/35553?usp=email )
Change subject: global_platform: Implement generic store_data command ......................................................................
global_platform: Implement generic store_data command
Change-Id: If30c5d31b4e7dd60d3a5cfb1d1cbdcf61741a50e --- M pySim/global_platform.py 1 file changed, 50 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/53/35553/1
diff --git a/pySim/global_platform.py b/pySim/global_platform.py index e04e845..9c375cd 100644 --- a/pySim/global_platform.py +++ b/pySim/global_platform.py @@ -287,6 +287,12 @@
# Application Dedicated File of a Security Domain class ADF_SD(CardADF): + StoreData = BitStruct('last_block'/Flag, + 'encryption'/Enum(BitsInteger(2), none=0, application_dependent=1, rfu=2, encrypted=3), + 'structure'/Enum(BitsInteger(2), none=0, dgi=1, ber_tlv=2, rfu=3), + '_pad'/Padding(2), + 'response'/Enum(Bit, not_expected=0, may_be_returned=1)) + def __init__(self, aid: str, name: str, desc: str): super().__init__(aid=aid, fid=None, sfid=None, name=name, desc=desc) self.shell_commands += [self.AddlShellCommands()] @@ -325,6 +331,41 @@ index_dict = {1: data_dict} return self._cmd.index_based_complete(text, line, begidx, endidx, index_dict=index_dict)
+ store_data_parser = argparse.ArgumentParser() + store_data_parser.add_argument('--data-structure', type=str, choices=['none','dgi','ber_tlv','rfu'], default='none') + store_data_parser.add_argument('--encryption', type=str, choices=['none','application_dependent', 'rfu', 'encrypted'], default='none') + store_data_parser.add_argument('--response', type=str, choices=['not_expected','may_be_returned'], default='not_expected') + store_data_parser.add_argument('DATA', type=is_hexstr) + + @cmd2.with_argparser(store_data_parser) + def do_store_data(self, opts): + """Perform the GlobalPlatform GET DATA command in order to store some card-specific data. + See GlobalPlatform CardSpecification v2.3Section 11.11 for details.""" + response_permitted = True if opts.response == 'may_be_returned' else False + self.store_data(h2b(opts.DATA), opts.data_structure, opts.encryption, response_permitted) + + def store_data(self, data: bytes, structure:str = 'none', encryption:str = 'none', response_permitted: bool = False) -> bytes: + """Perform the GlobalPlatform GET DATA command in order to store some card-specific data. + See GlobalPlatform CardSpecification v2.3Section 11.11 for details.""" + # Table 11-89 of GP Card Specification v2.3 + remainder = data + block_nr = 0 + response = '' + while len(remainder): + chunk = remainder[:255] + remainder = remainder[255:] + p1b = build_construct(ADF_SD.StoreData, + {'last_block': len(remainder) == 0, 'encryption': encryption, + 'structure': structure, 'response': response_permitted}) + hdr = "80E2%02x%02x%02x" % (p1b[0], block_nr, len(chunk)) + data, sw = self._cmd.lchan.scc._tp.send_apdu_checksw(hdr + b2h(chunk)) + block_nr += 1 + response += data + return data + + + + # Card Application of a Security Domain class CardApplicationSD(CardApplication): __intermediate = True
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