KRB5PLUGIN_AN2LN_FTABLE_DESC(3)

💖 krb5plugin_an2ln_ftable_desc — bestie edition 💖

okay so this is a page straight out of the Heimdal Kerberos 5 library manual, and we're talking about krb5plugin_an2ln_ftable_desc — literally the description of the krb5_aname_to_lname(3) plugin facility. yes bestie, it's a whole plugin situation. buckle up. 🎀

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✨ NAME ✨

krb5plugin_an2ln_ftable_desc — the lowdown on the krb5_aname_to_lname(3) plugin facility. it's giving "here's how you plug into the name-mapping machine." 💅

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🌸 SYNOPSIS 🌸

#include <an2ln_plugin.h>

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🦋 Detailed Description 🦋

so. the whole tea: this is the description of the krb5_aname_to_lname(3) plugin facility. 🫶

krb5_aname_to_lname(3) is pluggable. the plugin is named KRB5_PLUGIN_AN2LN (and its lil nickname is 'an2ln', cute), and it has exactly one minor version: KRB5_PLUGIN_AN2LN_VERSION_0, which is 0. one version, no chaos, periodt.

the plugin for krb5_aname_to_lname(3) is made of a data symbol that points at a structure of type krb5plugin_an2ln_ftable, and that struct has four fields:

🧚 Parameters 🧚

• init — the plugin initialization function (go peek at krb5-plugin(7) for the deets, iykyk)
• minor_version — the plugin minor version number, which is 0
• fini — the plugin finalization function
• an2ln — the plugin's aname_to_lname function

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the an2ln field is the moment — it's the plugin entry point that does the traditional aname_to_lname operation, and it can do it however the plugin wants, honestly, main character energy, do your thing. 💅

BUT. and this is important bestie. it gets invoked in no particular order relative to the other an2ln plugins. none. zero. so instead, it gets a 'rule' argument that says which plugin is actually supposed to act on that rule. and if the rule is not applicable to this plugin? the plugin's an2ln function must return KRB5_PLUGIN_NO_HANDLE. no cap. that's the vibe check. 🌈

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💜 the arguments, in this exact order 💜

1. plug_ctx — the context value that the plugin's init function output
2. context — a krb5_context
3. rule — the aname_to_lname rule currently being evaluated (this one comes from krb5.conf(5), bestie)
4. aname — the krb5_principal that's getting mapped to an lname
5. set_res_f — a function the plugin must call to set its result 👑
6. set_res_ctx — the first argument you hand to set_res_f (the second one is the result lname string, fyi)

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⭐ Author ⭐

generated automatically by Doxygen for the Heimdal Kerberos 5 library, straight from the source code. it's iconic, it's hands-off, it's literally a robot doing the writing for us. 💖

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🎀 okay that's the whole page bestie, go forth and plug in responsibly 🎀

signing off with the deets: Version 7.8.0, dated Tue Nov 15 2022, from your friends at the Heimdal Kerberos 5 library manual, krb5plugin...table_desc(3) ✨🦋