[RFC] geli - Allow attaching multiple providers

[Ben Woods]

On 28 May 2017 at 13:38, Ben Woods <woodsb02 at gmail.com> wrote:

> Hi everyone,
>
> I would like to propose a patch to geli to allow multiple providers to be
> attached in a single command if they use the same passphrase/keyfiles.
>
> This is helpful when the providers being attached are not used for boot,
> and therefore the existing code to first try the cached password when
> tasting the providers during boot does not apply.
>
> Multiple providers with the same passphrase and keyfiles can be attached
> at the same time during system start-up by adding the following to
> /etc/rc.conf:
>
> geli_groups="storage backup"
> geli_storage_flags="-k /etc/geli/storage.keys"
> geli_storage_devices="ada0 ada1"
> geli_backup_flags="-j /etc/geli/backup.passfile -k /etc/geli/backup.keys"
> geli_backup_devices="ada2 ada3"
>
> The patch is up for review on phabricator here:
> https://reviews.freebsd.org/D9396
>
> Regards,
> Ben
>
> --
> From: Benjamin Woods
> woodsb02 at gmail.com
>

Hi everyone,

I have created a new phabricator review for this work to allow multiple
providers to be attached in a single geli command if they use the same
passphrase/keyfiles.

Unlike D9396, this implementation does not modify the kernel. This is
achieved by creating a new child geom request for each provider being
attached, and passing each request to the kernel one by one.

The new patch can be found here:
https://reviews.freebsd.org/D12644

I am hoping people can review and comment on this patch, and that I can get
assistance committing this once it is approved (as I am only a ports
committer).

Regards,
Ben

--
From: Benjamin Woods
woodsb02 at gmail.com