crypto: enforce that LUKS stripes is always a fixed value
commitf1195961f36b19ce9008dabf11ee8362803bcd92
authorDaniel P. Berrangé <berrange@redhat.com>
Tue, 10 May 2022 13:27:33 +0000 (10 14:27 +0100)
committerDaniel P. Berrangé <berrange@redhat.com>
Thu, 27 Oct 2022 11:55:27 +0000 (27 12:55 +0100)
tree6111a083fda6ed1a8395dc6eaf481412ad2a701f
parentc1d8634c207defb547a57515729233e47f65718f
crypto: enforce that LUKS stripes is always a fixed value

Although the LUKS stripes are encoded in the keyslot header and so
potentially configurable, in pratice the cryptsetup impl mandates
this has the fixed value 4000. To avoid incompatibility apply the
same enforcement in QEMU too. This also caps the memory usage for
key material when QEMU tries to open a LUKS volume.

Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
crypto/block-luks.c