| # coding=utf-8 |
| """Representation of the ISO7816-4 filesystem model. |
| |
| The File (and its derived classes) represent the structure / hierarchy |
| of the ISO7816-4 smart card file system with the MF, DF, EF and ADF |
| entries, further sub-divided into the EF sub-types Transparent, Linear Fixed, etc. |
| |
| The classes are intended to represent the *specification* of the filesystem, |
| not the actual contents / runtime state of interacting with a given smart card. |
| |
| (C) 2021 by Harald Welte <laforge@osmocom.org> |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation, either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| """ |
| |
| import code |
| import json |
| |
| import cmd2 |
| from cmd2 import CommandSet, with_default_category, with_argparser |
| import argparse |
| |
| from pySim.utils import sw_match, h2b, b2h |
| from pySim.exceptions import * |
| |
| class CardFile(object): |
| """Base class for all objects in the smart card filesystem. |
| Serve as a common ancestor to all other file types; rarely used directly. |
| """ |
| RESERVED_NAMES = ['..', '.', '/', 'MF'] |
| RESERVED_FIDS = ['3f00'] |
| |
| def __init__(self, fid=None, sfid=None, name=None, desc=None, parent=None): |
| if not isinstance(self, CardADF) and fid == None: |
| raise ValueError("fid is mandatory") |
| if fid: |
| fid = fid.lower() |
| self.fid = fid # file identifier |
| self.sfid = sfid # short file identifier |
| self.name = name # human readable name |
| self.desc = desc # human readable description |
| self.parent = parent |
| if self.parent and self.parent != self and self.fid: |
| self.parent.add_file(self) |
| self.shell_commands = [] |
| |
| def __str__(self): |
| if self.name: |
| return self.name |
| else: |
| return self.fid |
| |
| def _path_element(self, prefer_name): |
| if prefer_name and self.name: |
| return self.name |
| else: |
| return self.fid |
| |
| def fully_qualified_path(self, prefer_name=True): |
| """Return fully qualified path to file as list of FID or name strings.""" |
| if self.parent != self: |
| ret = self.parent.fully_qualified_path(prefer_name) |
| else: |
| ret = [] |
| ret.append(self._path_element(prefer_name)) |
| return ret |
| |
| def get_mf(self): |
| """Return the MF (root) of the file system.""" |
| if self.parent == None: |
| return None |
| # iterate towards the top. MF has parent == self |
| node = self |
| while node.parent != node: |
| node = node.parent |
| return node |
| |
| def _get_self_selectables(self, alias=None): |
| """Return a dict of {'identifier': self} tuples""" |
| sels = {} |
| if alias: |
| sels.update({alias: self}) |
| if self.fid: |
| sels.update({self.fid: self}) |
| if self.name: |
| sels.update({self.name: self}) |
| return sels |
| |
| def get_selectables(self): |
| """Return a dict of {'identifier': File} that is selectable from the current file.""" |
| # we can always select ourself |
| sels = self._get_self_selectables('.') |
| # we can always select our parent |
| sels = self.parent._get_self_selectables('..') |
| # if we have a MF, we can always select its applications |
| mf = self.get_mf() |
| if mf: |
| sels.update(mf._get_self_selectables()) |
| sels.update(mf.get_app_selectables()) |
| return sels |
| |
| def get_selectable_names(self): |
| """Return a list of strings for all identifiers that are selectable from the current file.""" |
| sels = self.get_selectables() |
| return sels.keys() |
| |
| def decode_select_response(self, data_hex): |
| """Decode the response to a SELECT command.""" |
| return self.parent.decode_select_response(data_hex) |
| |
| |
| class CardDF(CardFile): |
| """DF (Dedicated File) in the smart card filesystem. Those are basically sub-directories.""" |
| def __init__(self, **kwargs): |
| if not isinstance(self, CardADF): |
| if not 'fid' in kwargs: |
| raise TypeError('fid is mandatory for all DF') |
| super().__init__(**kwargs) |
| self.children = dict() |
| |
| def __str__(self): |
| return "DF(%s)" % (super().__str__()) |
| |
| def add_file(self, child, ignore_existing=False): |
| """Add a child (DF/EF) to this DF""" |
| if not isinstance(child, CardFile): |
| raise TypeError("Expected a File instance") |
| if child.name in CardFile.RESERVED_NAMES: |
| raise ValueError("File name %s is a reserved name" % (child.name)) |
| if child.fid in CardFile.RESERVED_FIDS: |
| raise ValueError("File fid %s is a reserved name" % (child.fid)) |
| if child.fid in self.children: |
| if ignore_existing: |
| return |
| raise ValueError("File with given fid %s already exists" % (child.fid)) |
| if self.lookup_file_by_sfid(child.sfid): |
| raise ValueError("File with given sfid %s already exists" % (child.sfid)) |
| if self.lookup_file_by_name(child.name): |
| if ignore_existing: |
| return |
| raise ValueError("File with given name %s already exists" % (child.name)) |
| self.children[child.fid] = child |
| child.parent = self |
| |
| def add_files(self, children, ignore_existing=False): |
| """Add a list of child (DF/EF) to this DF""" |
| for child in children: |
| self.add_file(child, ignore_existing) |
| |
| def get_selectables(self): |
| """Get selectable (DF/EF names) from current DF""" |
| # global selectables + our children |
| sels = super().get_selectables() |
| sels.update({x.fid: x for x in self.children.values() if x.fid}) |
| sels.update({x.name: x for x in self.children.values() if x.name}) |
| return sels |
| |
| def lookup_file_by_name(self, name): |
| if name == None: |
| return None |
| for i in self.children.values(): |
| if i.name and i.name == name: |
| return i |
| return None |
| |
| def lookup_file_by_sfid(self, sfid): |
| if sfid == None: |
| return None |
| for i in self.children.values(): |
| if i.sfid == int(sfid): |
| return i |
| return None |
| |
| def lookup_file_by_fid(self, fid): |
| if fid in self.children: |
| return self.children[fid] |
| return None |
| |
| |
| class CardMF(CardDF): |
| """MF (Master File) in the smart card filesystem""" |
| def __init__(self, **kwargs): |
| # can be overridden; use setdefault |
| kwargs.setdefault('fid', '3f00') |
| kwargs.setdefault('name', 'MF') |
| kwargs.setdefault('desc', 'Master File (directory root)') |
| # cannot be overridden; use assignment |
| kwargs['parent'] = self |
| super().__init__(**kwargs) |
| self.applications = dict() |
| |
| def __str__(self): |
| return "MF(%s)" % (self.fid) |
| |
| def add_application(self, app): |
| """Add an ADF (Application Dedicated File) to the MF""" |
| if not isinstance(app, CardADF): |
| raise TypeError("Expected an ADF instance") |
| if app.aid in self.applications: |
| raise ValueError("AID %s already exists" % (app.aid)) |
| self.applications[app.aid] = app |
| app.parent=self |
| |
| def get_app_names(self): |
| """Get list of completions (AID names)""" |
| return [x.name for x in self.applications] |
| |
| def get_selectables(self): |
| """Get list of completions (DF/EF/ADF names) from current DF""" |
| sels = super().get_selectables() |
| sels.update(self.get_app_selectables()) |
| return sels |
| |
| def get_app_selectables(self): |
| # applications by AID + name |
| sels = {x.aid: x for x in self.applications.values()} |
| sels.update({x.name: x for x in self.applications.values() if x.name}) |
| return sels |
| |
| def decode_select_response(self, data_hex): |
| """Decode the response to a SELECT command.""" |
| return data_hex |
| |
| |
| |
| class CardADF(CardDF): |
| """ADF (Application Dedicated File) in the smart card filesystem""" |
| def __init__(self, aid, **kwargs): |
| super().__init__(**kwargs) |
| self.aid = aid # Application Identifier |
| if self.parent: |
| self.parent.add_application(self) |
| |
| def __str__(self): |
| return "ADF(%s)" % (self.aid) |
| |
| def _path_element(self, prefer_name): |
| if self.name and prefer_name: |
| return self.name |
| else: |
| return self.aid |
| |
| |
| class CardEF(CardFile): |
| """EF (Entry File) in the smart card filesystem""" |
| def __init__(self, *, fid, **kwargs): |
| kwargs['fid'] = fid |
| super().__init__(**kwargs) |
| |
| def __str__(self): |
| return "EF(%s)" % (super().__str__()) |
| |
| def get_selectables(self): |
| """Get list of completions (EF names) from current DF""" |
| #global selectable names + those of the parent DF |
| sels = super().get_selectables() |
| sels.update({x.name:x for x in self.parent.children.values() if x != self}) |
| return sels |
| |
| |
| class TransparentEF(CardEF): |
| """Transparent EF (Entry File) in the smart card filesystem""" |
| |
| @with_default_category('Transparent EF Commands') |
| class ShellCommands(CommandSet): |
| def __init__(self): |
| super().__init__() |
| |
| read_bin_parser = argparse.ArgumentParser() |
| read_bin_parser.add_argument('--offset', type=int, default=0, help='Byte offset for start of read') |
| read_bin_parser.add_argument('--length', type=int, help='Number of bytes to read') |
| @cmd2.with_argparser(read_bin_parser) |
| def do_read_binary(self, opts): |
| """Read binary data from a transparent EF""" |
| (data, sw) = self._cmd.rs.read_binary(opts.length, opts.offset) |
| self._cmd.poutput(data) |
| |
| def do_read_binary_decoded(self, opts): |
| """Read + decode data from a transparent EF""" |
| (data, sw) = self._cmd.rs.read_binary_dec() |
| self._cmd.poutput(json.dumps(data, indent=4)) |
| |
| upd_bin_parser = argparse.ArgumentParser() |
| upd_bin_parser.add_argument('--offset', type=int, default=0, help='Byte offset for start of read') |
| upd_bin_parser.add_argument('data', help='Data bytes (hex format) to write') |
| @cmd2.with_argparser(upd_bin_parser) |
| def do_update_binary(self, opts): |
| """Update (Write) data of a transparent EF""" |
| (data, sw) = self._cmd.rs.update_binary(opts.data, opts.offset) |
| self._cmd.poutput(data) |
| |
| upd_bin_dec_parser = argparse.ArgumentParser() |
| upd_bin_dec_parser.add_argument('data', help='Abstract data (JSON format) to write') |
| @cmd2.with_argparser(upd_bin_dec_parser) |
| def do_update_binary_decoded(self, opts): |
| """Encode + Update (Write) data of a transparent EF""" |
| data_json = json.loads(opts.data) |
| (data, sw) = self._cmd.rs.update_binary_dec(data_json) |
| self._cmd.poutput(json.dumps(data, indent=4)) |
| |
| def __init__(self, fid, sfid=None, name=None, desc=None, parent=None, size={1,None}): |
| super().__init__(fid=fid, sfid=sfid, name=name, desc=desc, parent=parent) |
| self.size = size |
| self.shell_commands = [self.ShellCommands()] |
| |
| def decode_bin(self, raw_bin_data): |
| """Decode raw (binary) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_bin', None) |
| if callable(method): |
| return method(raw_bin_data) |
| method = getattr(self, '_decode_hex', None) |
| if callable(method): |
| return method(b2h(raw_bin_data)) |
| return {'raw': raw_bin_data.hex()} |
| |
| def decode_hex(self, raw_hex_data): |
| """Decode raw (hex string) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_hex', None) |
| if callable(method): |
| return method(raw_hex_data) |
| raw_bin_data = h2b(raw_hex_data) |
| method = getattr(self, '_decode_bin', None) |
| if callable(method): |
| return method(raw_bin_data) |
| return {'raw': raw_bin_data.hex()} |
| |
| def encode_bin(self, abstract_data): |
| """Encode abstract representation into raw (binary) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_bin', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_hex', None) |
| if callable(method): |
| return h2b(method(abstract_data)) |
| raise NotImplementedError |
| |
| def encode_hex(self, abstract_data): |
| """Encode abstract representation into raw (hex string) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_hex', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_bin', None) |
| if callable(method): |
| raw_bin_data = method(abstract_data) |
| return b2h(raw_bin_data) |
| raise NotImplementedError |
| |
| |
| class LinFixedEF(CardEF): |
| """Linear Fixed EF (Entry File) in the smart card filesystem""" |
| |
| @with_default_category('Linear Fixed EF Commands') |
| class ShellCommands(CommandSet): |
| def __init__(self): |
| super().__init__() |
| |
| read_rec_parser = argparse.ArgumentParser() |
| read_rec_parser.add_argument('record_nr', type=int, help='Number of record to be read') |
| @cmd2.with_argparser(read_rec_parser) |
| def do_read_record(self, opts): |
| """Read a record from a record-oriented EF""" |
| (data, sw) = self._cmd.rs.read_record(opts.record_nr) |
| self._cmd.poutput(data) |
| |
| read_rec_dec_parser = argparse.ArgumentParser() |
| read_rec_dec_parser.add_argument('record_nr', type=int, help='Number of record to be read') |
| @cmd2.with_argparser(read_rec_dec_parser) |
| def do_read_record_decoded(self, opts): |
| """Read + decode a record from a record-oriented EF""" |
| (data, sw) = self._cmd.rs.read_record_dec(opts.record_nr) |
| self._cmd.poutput(json.dumps(data, indent=4)) |
| |
| upd_rec_parser = argparse.ArgumentParser() |
| upd_rec_parser.add_argument('record_nr', type=int, help='Number of record to be read') |
| upd_rec_parser.add_argument('data', help='Data bytes (hex format) to write') |
| @cmd2.with_argparser(upd_rec_parser) |
| def do_update_record(self, opts): |
| """Update (write) data to a record-oriented EF""" |
| (data, sw) = self._cmd.rs.update_record(opts.record_nr, opts.data) |
| self._cmd.poutput(data) |
| |
| upd_rec_dec_parser = argparse.ArgumentParser() |
| upd_rec_dec_parser.add_argument('record_nr', type=int, help='Number of record to be read') |
| upd_rec_dec_parser.add_argument('data', help='Data bytes (hex format) to write') |
| @cmd2.with_argparser(upd_rec_dec_parser) |
| def do_update_record_decoded(self, opts): |
| """Encode + Update (write) data to a record-oriented EF""" |
| (data, sw) = self._cmd.rs.update_record_dec(opts.record_nr, opts.data) |
| self._cmd.poutput(data) |
| |
| def __init__(self, fid, sfid=None, name=None, desc=None, parent=None, rec_len={1,None}): |
| super().__init__(fid=fid, sfid=sfid, name=name, desc=desc, parent=parent) |
| self.rec_len = rec_len |
| self.shell_commands = [self.ShellCommands()] |
| |
| def decode_record_hex(self, raw_hex_data): |
| """Decode raw (hex string) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_record_hex', None) |
| if callable(method): |
| return method(raw_hex_data) |
| raw_bin_data = h2b(raw_hex_data) |
| method = getattr(self, '_decode_record_bin', None) |
| if callable(method): |
| return method(raw_bin_data) |
| return {'raw': raw_bin_data.hex()} |
| |
| def decode_record_bin(self, raw_bin_data): |
| """Decode raw (binary) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_record_bin', None) |
| if callable(method): |
| return method(raw_bin_data) |
| raw_hex_data = b2h(raw_bin_data) |
| method = getattr(self, '_decode_record_hex', None) |
| if callable(method): |
| return method(raw_hex_data) |
| return {'raw': raw_hex_data} |
| |
| def encode_record_hex(self, abstract_data): |
| """Encode abstract representation into raw (hex string) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_record_hex', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_record_bin', None) |
| if callable(method): |
| raw_bin_data = method(abstract_data) |
| return b2h(raww_bin_data) |
| raise NotImplementedError |
| |
| def encode_record_bin(self, abstract_data): |
| """Encode abstract representation into raw (binary) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_record_bin', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_record_hex', None) |
| if callable(method): |
| return b2h(method(abstract_data)) |
| raise NotImplementedError |
| |
| class CyclicEF(LinFixedEF): |
| """Cyclic EF (Entry File) in the smart card filesystem""" |
| # we don't really have any special support for those; just recycling LinFixedEF here |
| def __init__(self, fid, sfid=None, name=None, desc=None, parent=None, rec_len={1,None}): |
| super().__init__(fid=fid, sfid=sfid, name=name, desc=desc, parent=parent, rec_len=rec_len) |
| |
| class TransRecEF(TransparentEF): |
| """Transparent EF (Entry File) containing fixed-size records. |
| These are the real odd-balls and mostly look like mistakes in the specification: |
| Specified as 'transparent' EF, but actually containing several fixed-length records |
| inside. |
| We add a special class for those, so the user only has to provide encoder/decoder functions |
| for a record, while this class takes care of split / merge of records. |
| """ |
| def __init__(self, fid, sfid=None, name=None, desc=None, parent=None, rec_len=None, size={1,None}): |
| super().__init__(fid=fid, sfid=sfid, name=name, desc=desc, parent=parent, size=size) |
| self.rec_len = rec_len |
| |
| def decode_record_hex(self, raw_hex_data): |
| """Decode raw (hex string) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_record_hex', None) |
| if callable(method): |
| return method(raw_hex_data) |
| method = getattr(self, '_decode_record_bin', None) |
| if callable(method): |
| raw_bin_data = h2b(raw_hex_data) |
| return method(raw_bin_data) |
| return {'raw': raw_hex_data} |
| |
| def decode_record_bin(self, raw_bin_data): |
| """Decode raw (hex string) data into abstract representation. Overloaded by specific classes.""" |
| method = getattr(self, '_decode_record_bin', None) |
| if callable(method): |
| return method(raw_bin_data) |
| raw_hex_data = b2h(raw_bin_data) |
| method = getattr(self, '_decode_record_hex', None) |
| if callable(method): |
| return method(raw_hex_data) |
| return {'raw': raw_hex_data} |
| |
| def encode_record_hex(self, abstract_data): |
| """Encode abstract representation into raw (hex string) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_record_hex', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_record_bin', None) |
| if callable(method): |
| return h2b(method(abstract_data)) |
| raise NotImplementedError |
| |
| def encode_record_bin(self, abstract_data): |
| """Encode abstract representation into raw (binary) data. Overloaded by specific classes.""" |
| method = getattr(self, '_encode_record_bin', None) |
| if callable(method): |
| return method(abstract_data) |
| method = getattr(self, '_encode_record_hex', None) |
| if callable(method): |
| return h2b(method(abstract_data)) |
| raise NotImplementedError |
| |
| def _decode_bin(self, raw_bin_data): |
| chunks = [raw_bin_data[i:i+self.rec_len] for i in range(0, len(raw_bin_data), self.rec_len)] |
| return [self.decode_record_bin(x) for x in chunks] |
| |
| def _encode_bin(self, abstract_data): |
| chunks = [self.encode_record_bin(x) for x in abstract_data] |
| # FIXME: pad to file size |
| return b''.join(chunks) |
| |
| |
| |
| |
| |
| class RuntimeState(object): |
| """Represent the runtime state of a session with a card.""" |
| def __init__(self, card, profile): |
| self.mf = CardMF() |
| self.card = card |
| self.selected_file = self.mf |
| self.profile = profile |
| # add applications + MF-files from profile |
| for a in self.profile.applications: |
| self.mf.add_application(a) |
| for f in self.profile.files_in_mf: |
| self.mf.add_file(f) |
| |
| def get_cwd(self): |
| """Obtain the current working directory.""" |
| if isinstance(self.selected_file, CardDF): |
| return self.selected_file |
| else: |
| return self.selected_file.parent |
| |
| def get_application(self): |
| """Obtain the currently selected application (if any).""" |
| # iterate upwards from selected file; check if any is an ADF |
| node = self.selected_file |
| while node.parent != node: |
| if isinstance(node, CardADF): |
| return node |
| node = node.parent |
| return None |
| |
| def interpret_sw(self, sw): |
| """Interpret the given SW relative to the currently selected Application |
| or the underlying profile.""" |
| app = self.get_application() |
| if app: |
| # The application either comes with its own interpret_sw |
| # method or we will use the interpret_sw method from the |
| # card profile. |
| if hasattr(app, "interpret_sw"): |
| return app.interpret_sw(sw) |
| else: |
| return self.profile.interpret_sw(sw) |
| return app.interpret_sw(sw) |
| else: |
| return self.profile.interpret_sw(sw) |
| |
| def select(self, name, cmd_app=None): |
| """Change current directory""" |
| sels = self.selected_file.get_selectables() |
| if name in sels: |
| f = sels[name] |
| # unregister commands of old file |
| if cmd_app and self.selected_file.shell_commands: |
| for c in self.selected_file.shell_commands: |
| cmd_app.unregister_command_set(c) |
| try: |
| if isinstance(f, CardADF): |
| (data, sw) = self.card._scc.select_adf(f.aid) |
| else: |
| (data, sw) = self.card._scc.select_file(f.fid) |
| self.selected_file = f |
| except SwMatchError as swm: |
| k = self.interpret_sw(swm.sw_actual) |
| if not k: |
| raise(swm) |
| raise RuntimeError("%s: %s - %s" % (swm.sw_actual, k[0], k[1])) |
| # register commands of new file |
| if cmd_app and self.selected_file.shell_commands: |
| for c in self.selected_file.shell_commands: |
| cmd_app.register_command_set(c) |
| return f.decode_select_response(data) |
| #elif looks_like_fid(name): |
| else: |
| raise ValueError("Cannot select unknown %s" % (name)) |
| |
| def read_binary(self, length=None, offset=0): |
| if not isinstance(self.selected_file, TransparentEF): |
| raise TypeError("Only works with TransparentEF") |
| return self.card._scc.read_binary(self.selected_file.fid, length, offset) |
| |
| def read_binary_dec(self): |
| (data, sw) = self.read_binary() |
| dec_data = self.selected_file.decode_hex(data) |
| print("%s: %s -> %s" % (sw, data, dec_data)) |
| return (dec_data, sw) |
| |
| def update_binary(self, data_hex, offset=0): |
| if not isinstance(self.selected_file, TransparentEF): |
| raise TypeError("Only works with TransparentEF") |
| return self.card._scc.update_binary(self.selected_file.fid, data_hex, offset) |
| |
| def update_binary_dec(self, data): |
| data_hex = self.selected_file.encode_hex(data) |
| print("%s -> %s" % (data, data_hex)) |
| return self.update_binary(data_hex) |
| |
| def read_record(self, rec_nr=0): |
| if not isinstance(self.selected_file, LinFixedEF): |
| raise TypeError("Only works with Linear Fixed EF") |
| # returns a string of hex nibbles |
| return self.card._scc.read_record(self.selected_file.fid, rec_nr) |
| |
| def read_record_dec(self, rec_nr=0): |
| (data, sw) = self.read_record(rec_nr) |
| return (self.selected_file.decode_record_hex(data), sw) |
| |
| def update_record(self, rec_nr, data_hex): |
| if not isinstance(self.selected_file, LinFixedEF): |
| raise TypeError("Only works with Linear Fixed EF") |
| return self.card._scc.update_record(self.selected_file.fid, rec_nr, data_hex) |
| |
| def update_record_dec(self, rec_nr, data): |
| hex_data = self.selected_file.encode_record_hex(data) |
| return self.update_record(self, rec_nr, data_hex) |
| |
| |
| |
| class FileData(object): |
| """Represent the runtime, on-card data.""" |
| def __init__(self, fdesc): |
| self.desc = fdesc |
| self.fcp = None |
| |
| |
| def interpret_sw(sw_data, sw): |
| """Interpret a given status word within the profile. Returns tuple of |
| two strings""" |
| for class_str, swdict in sw_data.items(): |
| # first try direct match |
| if sw in swdict: |
| return (class_str, swdict[sw]) |
| # next try wildcard matches |
| for pattern, descr in swdict.items(): |
| if sw_match(sw, pattern): |
| return (class_str, descr) |
| return None |
| |
| class CardApplication(object): |
| """A card application is represented by an ADF (with contained hierarchy) and optionally |
| some SW definitions.""" |
| def __init__(self, name, adf=None, sw={}): |
| self.name = name |
| self.adf = adf |
| self.sw = sw |
| |
| def __str__(self): |
| return "APP(%s)" % (self.name) |
| |
| def interpret_sw(self, sw): |
| """Interpret a given status word within the application. Returns tuple of |
| two strings""" |
| return interpret_sw(self.sw, sw) |
| |
| class CardProfile(object): |
| """A Card Profile describes a card, it's filessystem hierarchy, an [initial] list of |
| applications as well as profile-specific SW and shell commands. Every card has |
| one card profile, but there may be multiple applications within that profile.""" |
| def __init__(self, name, desc=None, files_in_mf=[], sw=[], applications=[], shell_cmdsets=[]): |
| self.name = name |
| self.desc = desc |
| self.files_in_mf = files_in_mf |
| self.sw = sw |
| self.applications = applications |
| self.shell_cmdsets = shell_cmdsets |
| |
| def __str__(self): |
| return self.name |
| |
| def add_application(self, app): |
| self.applications.add(app) |
| |
| def interpret_sw(self, sw): |
| """Interpret a given status word within the profile. Returns tuple of |
| two strings""" |
| return interpret_sw(self.sw, sw) |
| |
| |
| ###################################################################### |
| |
| if __name__ == '__main__': |
| mf = CardMF() |
| |
| adf_usim = ADF('a0000000871002', name='ADF_USIM') |
| mf.add_application(adf_usim) |
| df_pb = CardDF('5f3a', name='DF.PHONEBOOK') |
| adf_usim.add_file(df_pb) |
| adf_usim.add_file(TransparentEF('6f05', name='EF.LI', size={2,16})) |
| adf_usim.add_file(TransparentEF('6f07', name='EF.IMSI', size={9,9})) |
| |
| rss = RuntimeState(mf, None) |
| |
| interp = code.InteractiveConsole(locals={'mf':mf, 'rss':rss}) |
| interp.interact() |