Expose ISO-TP Contants for Linux >= 5.10

[rumpelsepp]

BPO	42653
Nosy	@rumpelsepp, @menschel
PRs	gh-86819: Add ISO-TP CAN socket constants #23794 bpo-42653: Add constants to socket module for IsoTp CAN protocol #26174

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-12-16.09:19:11.697>
labels = ['type-feature', 'library', '3.10']
title = 'Expose ISO-TP Contants for Linux >= 5.10'
updated_at = <Date 2021-05-19.17:44:10.698>
user = 'https://github.com/rumpelsepp'

bugs.python.org fields:

activity = <Date 2021-05-19.17:44:10.698>
actor = 'menschel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-12-16.09:19:11.697>
creator = 'rumpelsepp'
dependencies = []
files = []
hgrepos = []
issue_num = 42653
keywords = ['patch']
message_count = 1.0
messages = ['383126']
nosy_count = 2.0
nosy_names = ['rumpelsepp', 'menschel']
pr_nums = ['23794', '26174']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue42653'
versions = ['Python 3.10']

[rumpelsepp]

Linux >= 5.10 gained a new SocketCAN module called ISOTP. This is an implementation of ISO 15765-2 which is mainly used in vehicle CAN networks. Expose the constants from linux/can/isotp.h in the socket module.

These constants are not entirely new. Previously there was an out of tree kernel module available and a subset of these constants are already available in CPyton.