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global_platform: Implement generic store_data command

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Change-Id: If30c5d31b4e7dd60d3a5cfb1d1cbdcf61741a50e
This commit is contained in:
Harald Welte
2024-01-11 22:03:12 +01:00
parent 7ba09f9392
commit d5be46ae7e
1 changed files with 41 additions and 0 deletions
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41
pySim/global_platform.py
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@@ -287,6 +287,12 @@ def decode_select_response(resp_hex: str) -> object:
# Application Dedicated File of a Security Domain # Application Dedicated File of a Security Domain
class ADF_SD(CardADF): 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): def __init__(self, aid: str, name: str, desc: str):
super().__init__(aid=aid, fid=None, sfid=None, name=name, desc=desc) super().__init__(aid=aid, fid=None, sfid=None, name=name, desc=desc)
self.shell_commands += [self.AddlShellCommands()] self.shell_commands += [self.AddlShellCommands()]
@@ -325,6 +331,41 @@ class ADF_SD(CardADF):
index_dict = {1: data_dict} index_dict = {1: data_dict}
return self._cmd.index_based_complete(text, line, begidx, endidx, index_dict=index_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 = opts.response == 'may_be_returned'
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 # Card Application of a Security Domain
class CardApplicationSD(CardApplication): class CardApplicationSD(CardApplication):
__intermediate = True __intermediate = True