Bug#618862: [systemd-devel] Debian Bug#618862: systemd: ignores keyscript in crypttab - a possible solution

[David Härdeman]

On 2015-05-26 00:05, Alberto Bertogli wrote:
> I hit this issue after upgrading a system that used keyscript to 
> Jessie,
> and it would no longer boot with systemd [1].
> 
> That led me to look into adding a password agent for my use case, 
> and/or
> creating a generic one that would invoke keyscripts as a workaround...
> 
> 
...
> On Wed, Feb 05, 2014 at 12:16:00AM +0100, Lennart Poettering wrote:
>> On Thu, 30.01.14 10:40, David Härdeman (david at hardeman.nu) wrote:
>> > b) the password agent implementation in systemd doesn't seem to
>> > handle binary strings (i.e. strings with '\0'), as can be seen by
>> > calls to e.g. "strlen()"...
>> >
>> > Whether making it binary safe would be a major change or not is
>> > something I haven't researched yet but it seems like a change that
>> > should be generally useful upstream...
>> 
>> I'd be OK with this, as discussed at FOSDEM, and I see you already
>> posted a ptach for this.
> 
> Has this been merged?

No, the last word was basically this thread:
http://lists.freedesktop.org/archives/systemd-devel/2014-July/021246.html

I don't have the time to implement a "complete" solution...

> Is it safe for a password agent to write content with \0 back to the
> socket?

Haven't checked but I'd be surprised if that was the case.

//David