OpenSSL 3.0.0: Make ssl_data.h version specific

[tiran]

BPO	43788
Nosy	@tiran, @miss-islington
PRs	bpo-43788: Generate version specific _ssl_data.h #25300 [3.9] bpo-43788: Generate version specific _ssl_data.h (GH-25300) (GH-25310) #25310 [3.8] bpo-43788: Generate version specific _ssl_data.h (GH-25300) (GH-25311) #25311

^{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 = 'https://github.com/tiran'
closed_at = <Date 2021-04-09.15:16:12.848>
created_at = <Date 2021-04-09.10:04:48.456>
labels = ['expert-SSL', 'type-feature', '3.8', '3.9', '3.10']
title = 'OpenSSL 3.0.0: Make ssl_data.h version specific'
updated_at = <Date 2021-04-09.16:34:58.078>
user = 'https://github.com/tiran'

bugs.python.org fields:

activity = <Date 2021-04-09.16:34:58.078>
actor = 'christian.heimes'
assignee = 'christian.heimes'
closed = True
closed_date = <Date 2021-04-09.15:16:12.848>
closer = 'christian.heimes'
components = ['SSL']
creation = <Date 2021-04-09.10:04:48.456>
creator = 'christian.heimes'
dependencies = []
files = []
hgrepos = []
issue_num = 43788
keywords = ['patch']
message_count = 4.0
messages = ['390603', '390636', '390645', '390646']
nosy_count = 2.0
nosy_names = ['christian.heimes', 'miss-islington']
pr_nums = ['25300', '25310', '25311']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue43788'
versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']

[tiran]

_ssl_data.h contains static tables with OpenSSL error names and reasons. The stables are created by scrapping header files. The current approach has two issues:

• error codes are version dependent. OpenSSL 1.1.1 uses different codes and has a different set of error reasons as 3.0.0.
• parsing header files with regular expressions is err-prone.

I'm going to introduce version-specific data tables and re-write the current make_ssl_data.py script to use OpenSSL's crypto/err/openssl.txt and crypto/err/openssl.ec. The text files exist since OpenSSL 1.1.

[miss-islington]

New changeset 150af75 by Christian Heimes in branch 'master':
bpo-43788: Generate version specific _ssl_data.h (GH-25300)
150af75

[tiran]

New changeset 299ae9c by Christian Heimes in branch '3.9':
[3.9] bpo-43788: Generate version specific _ssl_data.h (GH-25300) (GH-25310)
299ae9c

[tiran]

New changeset 70f2ca7 by Christian Heimes in branch '3.8':
[3.8] bpo-43788: Generate version specific _ssl_data.h (GH-25300) (GH-25311)
70f2ca7