From e6e74229c9bba2f6eebe118a2f4626e9f4110dd1 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 4 Feb 2024 23:01:48 +0100 Subject: [PATCH] pylint: pySim/esim/bsp.py pySim/esim/bsp.py:1:0: C0114: Missing module docstring (missing-module-docstring) pySim/esim/bsp.py:28:0: C0413: Import "import abc" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:29:0: C0413: Import "from typing import List" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:30:0: C0413: Import "import logging" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:33:0: C0413: Import "from cryptography.hazmat.primitives import hashes" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:34:0: C0413: Import "from cryptography.hazmat.primitives.kdf.x963kdf import X963KDF" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:36:0: C0413: Import "from Cryptodome.Cipher import AES" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:37:0: C0413: Import "from Cryptodome.Hash import CMAC" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:39:0: C0413: Import "from pySim.utils import bertlv_encode_len, bertlv_parse_one, b2h" should be placed at the top of the module (wrong-import-position) pySim/esim/bsp.py:48:55: W0613: Unused argument 'padding' (unused-argument) pySim/esim/bsp.py:55:45: W0613: Unused argument 'multiple' (unused-argument) pySim/esim/bsp.py:84:8: W0107: Unnecessary pass statement (unnecessary-pass) pySim/esim/bsp.py:89:8: W0107: Unnecessary pass statement (unnecessary-pass) pySim/esim/bsp.py:94:8: W0107: Unnecessary pass statement (unnecessary-pass) pySim/esim/bsp.py:169:8: W0107: Unnecessary pass statement (unnecessary-pass) pySim/esim/bsp.py:292:8: W0612: Unused variable 'tdict' (unused-variable) pySim/esim/bsp.py:292:15: W0612: Unused variable 'l' (unused-variable) pySim/esim/bsp.py:292:23: W0612: Unused variable 'remain' (unused-variable) Change-Id: I64bd634606c375e767676a4b5ba7c2cc042350c2 --- pySim/esim/bsp.py | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/pySim/esim/bsp.py b/pySim/esim/bsp.py index cf2104a9..2afbd462 100644 --- a/pySim/esim/bsp.py +++ b/pySim/esim/bsp.py @@ -23,7 +23,6 @@ # SGP.22 v3.0 Section 2.5.3: # That block of data is split into segments of a maximum size of 1020 bytes (including the tag, length field and MAC). -MAX_SEGMENT_SIZE = 1020 import abc from typing import List @@ -42,6 +41,8 @@ from pySim.utils import bertlv_encode_len, bertlv_parse_one, b2h logger = logging.getLogger(__name__) logger.addHandler(logging.NullHandler()) +MAX_SEGMENT_SIZE = 1020 + class BspAlgo(abc.ABC): blocksize: int @@ -50,11 +51,11 @@ class BspAlgo(abc.ABC): if in_len % multiple == 0: return b'' pad_cnt = multiple - (in_len % multiple) - return b'\x00' * pad_cnt + return bytes([padding]) * pad_cnt def _pad_to_multiple(self, indat: bytes, multiple: int, padding: int = 0) -> bytes: """Pad the input data to multiples of 'multiple'.""" - return indat + self._get_padding(len(indat), self.blocksize, padding) + return indat + self._get_padding(len(indat), multiple, padding) def __str__(self): return self.__class__.__name__ @@ -81,17 +82,14 @@ class BspAlgoCrypt(BspAlgo, abc.ABC): @abc.abstractmethod def _unpad(self, padded: bytes) -> bytes: """Remove the padding from padded data.""" - pass @abc.abstractmethod def _encrypt(self, data:bytes) -> bytes: """Actual implementation, to be implemented by derived class.""" - pass @abc.abstractmethod def _decrypt(self, data:bytes) -> bytes: """Actual implementation, to be implemented by derived class.""" - pass class BspAlgoCryptAES128(BspAlgoCrypt): name = 'AES-CBC-128' @@ -166,7 +164,6 @@ class BspAlgoMac(BspAlgo, abc.ABC): @abc.abstractmethod def _auth(self, temp_data: bytes) -> bytes: """To be implemented by algorithm specific derived class.""" - pass class BspAlgoMacAES128(BspAlgoMac): name = 'AES-CMAC-128' @@ -289,7 +286,7 @@ class BspInstance: def demac_only_one(self, ciphertext: bytes) -> bytes: payload = self.m_algo.verify(ciphertext) - tdict, l, val, remain = bertlv_parse_one(payload) + _tdict, _l, val, _remain = bertlv_parse_one(payload) return val def demac_only(self, ciphertext_list: List[bytes]) -> bytes: