linux-kernel - Re: RFC: sign the modules at install time

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Date:	Fri, 19 Oct 2012 12:58:16 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	David Miller <davem@...emloft.net>,
	David Howells <dhowells@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: RFC: sign the modules at install time

On Thu, Oct 18, 2012 at 6:23 PM, Rusty Russell <rusty@...tcorp.com.au> wrote:
>
> Smerged them together: no point moving the x509keyid script now.
> I dropped the optional dst arg, since we don't use it.
>
> Thanks,
> Rusty.
> ===
> From: Rusty Russell <rusty@...tcorp.com.au>
> Subject: [PATCH] kbuild: sign the modules at install time
>
> Linus deleted the old code and put signing on the install command,
> I fixed it to extract the keyid and signer-name within sign-file
> and cleaned up that script now it always signs in-place.

Ugh. That was horribly broken, and sadly I didn't notice until several
pulls later (I tend to try to compile-test much more often, but do
boot-tests only a couple of times a day).

You clearly hadn't tested that patch at all, the resulting signature
was broken in two independent and totally different ways.

Tssk. I fixed it up, and now it works-for-me(tm), but some perl person
probably really should try to make that sign-file and x509keyid merge.
My fix made the thing even slower, doing two extra "wc -c" invocations
since it can't do "${#..}" expansion due to the locale problem.

             Linus
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