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PAM: Add support for more native pam features and initial support for gdm #2

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PAM: Add support for more native pam features and initial support for gdm #2

wants to merge 9 commits into from

Commits on Jul 28, 2023

  1. pam/utils: Add utilities to get module name and do basic PAM conversa… 

    …tion
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    3v1n0 committed Jul 28, 2023
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  2. pam: Fail if no broker has been found

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    3v1n0 committed Jul 28, 2023
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  3. pam: Use native PAM communication when possible 

    It's just better as it can be used both by terminal apps and other
interactive UIs, without any assumption on the terminal in use, this is
mostly due to the fact that a PAM client may be remote (as in SSH case)
and so we can't assume that is always using a terminal.

As per this, generalize the case trying to use the PAM APIs all the
times, while using the terminal specific features if that's possible.

So that ideally we can also share some of them with GDM ops.
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  4. pam: Move specific per-client operations in different functions 

    Use a more object-oriented implementation, for what go allows to
generalize the clients types.

Basically for now we support two kinds of clients, that may behave
differently:
 - Simple standard PAM client (as for remote access)
 - Terminal client (an interactive terminal as in sudo)

This will allow to support graphical clients in an easier way.
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  5. pam: Remove not-used C definitions

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    3v1n0 committed Jul 28, 2023
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  6. pam: Move C code to separated files, to keep it cleaner and easy to m… 

    …aintain
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    3v1n0 committed Jul 28, 2023
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  7. pam-utils: Add support for the GDM choice list protocol

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    3v1n0 committed Jul 28, 2023
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  8. pam: In GDM mode, send the broker selection using a choice list

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    3v1n0 committed Jul 28, 2023
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  9. pam: Inform pam clients of connection errors

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    3v1n0 committed Jul 28, 2023
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