move EF_UServiceTable from ts_31_102 to ts_31_102_telecom
We want to use this class in an upcoming patch for DF_MCS support,
and in order to avoid cyclic imports, EF_UServiceTable must be moved.
Change-Id: I9cd6ab795bfd92f845eb943679a3d6302f1003ce
diff --git a/pySim/ts_31_102.py b/pySim/ts_31_102.py
index d9ee3a0..786bd64 100644
--- a/pySim/ts_31_102.py
+++ b/pySim/ts_31_102.py
@@ -36,7 +36,7 @@
from pySim.ts_102_221 import EF_ARR
from pySim.tlv import *
from pySim.filesystem import *
-from pySim.ts_31_102_telecom import DF_PHONEBOOK
+from pySim.ts_31_102_telecom import DF_PHONEBOOK, EF_UServiceTable
from pySim.construct import *
from construct import Optional as COptional
from construct import *
@@ -538,94 +538,6 @@
super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size)
self._construct = Int8ub
-# TS 31.102 Section 4.2.8
-class EF_UServiceTable(TransparentEF):
- def __init__(self, fid, sfid, name, desc, size, table, **kwargs):
- super().__init__(fid=fid, sfid=sfid, name=name, desc=desc, size=size, **kwargs)
- self.table = table
-
- @staticmethod
- def _bit_byte_offset_for_service(service: int) -> Tuple[int, int]:
- i = service - 1
- byte_offset = i//8
- bit_offset = (i % 8)
- return (byte_offset, bit_offset)
-
- def _decode_bin(self, in_bin):
- ret = {}
- for i in range(0, len(in_bin)):
- byte = in_bin[i]
- for bitno in range(0, 8):
- service_nr = i * 8 + bitno + 1
- ret[service_nr] = {
- 'activated': True if byte & (1 << bitno) else False
- }
- if service_nr in self.table:
- ret[service_nr]['description'] = self.table[service_nr]
- return ret
-
- def _encode_bin(self, in_json):
- # compute the required binary size
- bin_len = 0
- for srv in in_json.keys():
- service_nr = int(srv)
- (byte_offset, bit_offset) = EF_UServiceTable._bit_byte_offset_for_service(
- service_nr)
- if byte_offset >= bin_len:
- bin_len = byte_offset+1
- # encode the actual data
- out = bytearray(b'\x00' * bin_len)
- for srv in in_json.keys():
- service_nr = int(srv)
- (byte_offset, bit_offset) = EF_UServiceTable._bit_byte_offset_for_service(
- service_nr)
- if in_json[srv]['activated'] == True:
- bit = 1
- else:
- bit = 0
- out[byte_offset] |= (bit) << bit_offset
- return out
-
- def get_active_services(self, cmd):
- # obtain list of currently active services
- (service_data, sw) = cmd.lchan.read_binary_dec()
- active_services = []
- for s in service_data.keys():
- if service_data[s]['activated']:
- active_services.append(s)
- return active_services
-
- def ust_service_check(self, cmd):
- """Check consistency between services of this file and files present/activated"""
- num_problems = 0
- # obtain list of currently active services
- active_services = self.get_active_services(cmd)
- # iterate over all the service-constraints we know of
- files_by_service = self.parent.files_by_service
- try:
- for s in sorted(files_by_service.keys()):
- active_str = 'active' if s in active_services else 'inactive'
- cmd.poutput("Checking service No %u (%s)" % (s, active_str))
- for f in files_by_service[s]:
- should_exist = f.should_exist_for_services(active_services)
- try:
- cmd.lchan.select_file(f)
- sw = None
- exists = True
- except SwMatchError as e:
- sw = str(e)
- exists = False
- if exists != should_exist:
- num_problems += 1
- if exists:
- cmd.perror(" ERROR: File %s is selectable but should not!" % f)
- else:
- cmd.perror(" ERROR: File %s is not selectable (%s) but should!" % (f, sw))
- finally:
- # re-select the EF.UST
- cmd.lchan.select_file(self)
- return num_problems
-
class EF_UST(EF_UServiceTable):
def __init__(self, **kwargs):
super().__init__(fid='6f38', sfid=0x04, name='EF.UST', desc='USIM Service Table', size={1,17}, table=EF_UST_map, **kwargs)