Re: [PATCH] Pass GPG_TTY env var to the ssh binary

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Hi Daniel,

On Mon, 14 Nov 2016 at 10:02:55 +0000, Daniel P. Berrange wrote:
> On Sat, Nov 12, 2016 at 02:19:37PM +0100, Guido Günther wrote:
>> This came in via the Debian BTS:
>> 
>> http://bugs.debian.org/43863
> 
> This seems to be the wrong bug number.

Yup, it's #843863 actually: http://bugs.debian.org/843863
 
> Can you explain what functional effect a GPG setting has on SSH ?!?!?!?

Quoting myself from the Debian bug #843863:

    gpg-agent(1) can emulate the OpenSSH Agent protocol (which provides
    pubkey-authentication using an authentication-capable OpenPGP key,
    in addition to the usual identity files).  However for a
    console-based password prompt (such as pinentry-curses) to work, the
    ‘GPG_TTY’ environment variable needs to be set to the current TTY.

    Using gpg-agent's ssh-agent implementation is currently not possible
    for SSH remote URIs, because the environment is cleaned before
    calling the ssh(1) binary.  The enclosed patches adds ‘GPG_TTY’ to
    the list of environment variables passed to the child.

Cheers,
-- 
Guilhem.

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