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According to [1] rijndael-cbc@lysator.liu.se is an alias for aes256-cbc which
was standardized in RFC4253 (2006).
This changes the migrator implementation to not only delete the old
"rijndael-cbc@lysator.liu.se" cipher from the CLI and set the new, standardized
aes256-cbc SSH cipher.
1: https://github.com/openssh/openssh-portable/commit/03e93c753d7c223063a
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Follow VyOS CLI best practices for using singular whenever possible to build a
CLI node. As we introduce a new migration 2 -> 3 for SSH we can correct this
minor detail.
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According to an Arch Linux forum discussion, the cipher
rijndael-cbc@lysator.liu.se was removed in OpenSSH 6.7.
References:
- https://bbs.archlinux.org/viewtopic.php?id=188613
- https://www.openssh.org/txt/release-6.7
- https://github.com/openssh/openssh-portable/commit/03e93c753d7c223063a
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The legal team says years are not necessary so we can go ahead with it, since
it will simplify backporting.
Automatically removed using: git ls-files | grep -v libvyosconfig | xargs sed -i -E \
's/^# Copyright (19|20)[0-9]{2}(-[0-9]{4})? VyOS maintainers.*/# Copyright VyOS maintainers and contributors <maintainers@vyos.io>/g'
In addition we will error-out during "make" if someone re-adds a legacy
copyright notice
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The script's name is always provided as the first argument sys.argv[0]
Expected length for argv is 2 (script itself + config file)
Change: 'if (len(argv) < 1)' to 'if len(argv) < 2'
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After hardning the regex validator to be preceeded with ^ and ending with $
it was no longer possible to have a comma separated list as SSH ciphers. The
migrations cript is altered to migrate the previous comma separated list
to individual multi node entries - cipher and key-exchange always had been
multinodes - so this just re-arranges some values and does not break CLI
compatibility
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When migrating the conf from VyOS 1.2 to 1.3 a configuration error could appear
if the user specified "info" as loglevel instead of "INFO". There was no input
validation done in 1.2 but this is now enforced in 1.3.
In VyOS 1.3 loglevel will be always lowercase on the CLI and when migrating the
config this is transformed. Also VyOS 1.2 accpeted any arbitrary loglevel. If
an invalid loglevel is found it will be set to info.
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