Re: information about active mappings

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On 31/10/2007 Janko Hrasko wrote:
> I would like to ask if there is a way to find out more information
> about active dm-crypt mapping.
> For example, i have /dev/mapper/cryptohome, and i would like to know
> what device is mappet there, and what cypher, key size and hash is
> used.
> I was looking on dm-crypt wiki and faq, googling, but i did not find
> answer for this.

Hey Janko,

You cannot get all these information from the cryptsetup device
directly, but if you know the mapped device, you can run
'cryptsetup luksDump <source_device>' and that will give you information
about cipher name, mode, hash spec etc.

You might also be interested in
'dmsetup -v status /dev/mapper/cryptohome' which gives at least
information about which type of dm-device it is etc.

greetings,
 jonas

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