tree 4a5d002eceff4a028ebc8d88223b1ed735bee224
parent c26fd69fa00916a31a47f5f096fd7be924106df8
author Rusty Russell <rusty@rustcorp.com.au> 1348650580 +0100
committer Rusty Russell <rusty@rustcorp.com.au> 1349861455 +1030

module: signature checking hook

We do a very simple search for a particular string appended to the module
(which is cache-hot and about to be SHA'd anyway).  There's both a config
option and a boot parameter which control whether we accept or fail with
unsigned modules and modules that are signed with an unknown key.

If module signing is enabled, the kernel will be tainted if a module is
loaded that is unsigned or has a signature for which we don't have the
key.

(Useful feedback and tweaks by David Howells <dhowells@redhat.com>)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>