[dm-crypt] How to tell whether a volume is currently suspended?

[dm-crypt] How to tell whether a volume is currently suspended?

[Michael Enßlin]

Hi,

is there a utility to determine whether a LUKS volume is currently
suspended and needs resuming (via LuksSuspend/LuksResume)?

If not, how can it be implemented without duplicating large parts of
cryptsetup functionality?

 ~ Michael

Re: [dm-crypt] How to tell whether a volume is currently suspended?

[Milan Broz]

On 11/05/2014 07:25 PM, Michael Enßlin wrote:
> Hi,
> 
> is there a utility to determine whether a LUKS volume is currently
> suspended and needs resuming (via LuksSuspend/LuksResume)?

You can use dmsetup info <name>
(name is the same like in cryptsetup)

In script you can use it even simpler:
dmsetup -c -o suspended --noheadings info <name>

But I am quite surprised it is not in "cryptsetup status" output :)

I will add this info there in next version.

Thanks,
Milan