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pySim.esim.saip: Treat "Readable and Updateable when deactivated" flag

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There's a second flag hidden in the TS 102 222 "Special File
Information"; let's parse + re-encode it properly.

Change-Id: I7644d265f746c662b64f7156b3be08a01e3a97aa
Related: OS#6643
This commit is contained in:
Harald Welte
2024-11-22 14:23:43 +01:00
parent 599845394e
commit 118624d256
1 changed files with 10 additions and 1 deletions
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11
pySim/esim/saip/__init__.py
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@@ -114,6 +114,7 @@ class File:
self.nb_rec: Optional[int] = None
self._file_size = 0
self.high_update: bool = False
self.read_and_update_when_deact: bool = False
self.shareable: bool = True
self.df_name = None
self.fill_pattern = None
@@ -194,6 +195,7 @@ class File:
fileDescriptor = {}
fdb_dec = {}
pefi = {}
spfi = 0
if self.fid:
fileDescriptor['fileID'] = self.fid.to_bytes(2, 'big')
if self.sfi:
@@ -233,7 +235,11 @@ class File:
if len(fd_dict):
fileDescriptor['fileDescriptor'] = build_construct(FileDescriptor._construct, fd_dict)
if self.high_update:
pefi['specialFileInformation'] = b'\x80' # TS 102 222 Table 5
spfi |= 0x80 # TS 102 222 Table 5
if self.read_and_update_when_deact:
spfi |= 0x40 # TS 102 222 Table 5
if spfi != 0x00:
pefi['specialFileInformation'] = spfi.to_bytes(1)
if self.fill_pattern:
if not self.fill_pattern_repeat:
pefi['fillPattern'] = self.fill_pattern
@@ -288,8 +294,11 @@ class File:
self._file_size = self._decode_file_size(pefi['maximumFileSize'])
specialFileInformation = pefi.get('specialFileInformation', None)
if specialFileInformation:
# TS 102 222 Table 5
if specialFileInformation[0] & 0x80:
self.high_update = True
if specialFileInformation[0] & 0x40:
self.read_and_update_when_deact = True
if 'repeatPattern' in pefi:
self.fill_pattern = pefi['repeatPattern']
self.fill_pattern_repeat = True