[pkg-gnupg-maint] Bug#854005: Bug#854005: ssh-agent no longer works

[Antoine Beaupré]

On 2017-02-06 23:01:16, Daniel Kahn Gillmor wrote:
> On Mon 2017-02-06 19:55:58 -0500, Antoine Beaupré wrote:
>> the daemon stopped working again - even with disable-ccid:
>>
>> $ LANG=C gpg --card-status
>> gpg: selecting openpgp failed: No such device
>> gpg: OpenPGP card not available: No such device
>>
>> i got a different error now:
>>
>> fév 06 19:45:29 curie gpg-agent[1643]: gpg-agent (GnuPG) 2.1.18 starting in supervised mode. 
>> fév 06 19:45:29 curie gpg-agent[1643]: using fd 3 for std socket (/run/user/1000/gnupg/S.gpg-agent) 
>> fév 06 19:45:29 curie gpg-agent[1643]: using fd 4 for ssh socket (/run/user/1000/gnupg/S.gpg-agent.ssh) 
>> fév 06 19:45:29 curie gpg-agent[1643]: using fd 5 for extra socket (/run/user/1000/gnupg/S.gpg-agent.extra) 
>> fév 06 19:45:29 curie gpg-agent[1643]: using fd 6 for browser socket (/run/user/1000/gnupg/S.gpg-agent.browser) 
>> fév 06 19:45:29 curie gpg-agent[1643]: listening on: std=3 extra=5 browser=6 ssh=4 
>> fév 06 19:45:29 curie gpg-agent[1643]: scdaemon[1645] pcsc_establish_context failed: no service (0x8010001d) 
>>
>> pcsc_establish_context failed: no service (0x8010001d) 
>>
>> This is strange, because there hasn't been a change in the gpg software
>> since my last report, and I *thought* I had this fixed with the ccid
>> workaround. But it seems that doesn't work anymore. :(
>>
>> I have tried uninstalling pcscd, running the command again, same result.
>>
>> Now the oddest thing is - installing pcscd again fixed the problem.
>>
>> No idea what's going on here.
>
> This sounds to me like pcscd crashed or otherwise terminated.
>
> afaict, the two options are:
>
>  * pcsc
>  * ccid
>
> the workaround i've seen mooted here of "disable-ccid" means that all
> your eggs are in the pcsc basket.  If pcscd fails or drops the card or
> whatever, then scdaemon can't fall back to ccid.
>
> did you have disable-ccid set in scdaemon.conf?

yes, i did.

> does this line of thinking make sense?

yes, it makes sense. i'll try to figure out if pcscd had crashed - but I
don't understand how reinstalling the package could have possibly fixed
this.

a.

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