server config FEATURE public API for hashing a password - #639
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Split the salt generation and the crypt(3) call out of nc_server_config_add_ssh_user_password() into a static helper and expose nc_server_config_hash_password() on top of it. No behaviour change. The public function takes a whole iana-crypt-hash 'crypt-hash' value and hashes only "$0$<clear-text>", returning NULL for a value that is already a digest. That keeps the "$0$" rule in one place, next to the auth path that relies on it as well, instead of in every caller. Lets a caller get just the digest, without building an ietf-netconf-server subtree around it or duplicating the crypt code and its libcrypt dependency. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Splits the salt generation and the crypt(3) call out of nc_server_config_add_ssh_user_password() into a public nc_server_config_hash_password(). No behaviour change.
Today the logic is only reachable through a function that builds an entire ietf-netconf-server subtree around the result. A caller that wants just the digest has to duplicate the crypt code and take on a libcrypt dependency of its own — which is what CESNET/Netopeer2# would otherwise have to do.
Motivation is: O-RAN WG11 R004, and 3GPP TS 33.117 clause 4.2.3.4.3.1 behind it, don't let a deployment ship clear-text credentials in a datastore, so Netopeer2 has to hash a "$0$" password at commit time