linux-kernel - Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures [ver #7]

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Date:	Tue, 11 Aug 2015 03:13:00 +0100
From:	David Howells <dhowells@...hat.com>
To:	James Morris <jmorris@...ei.org>
Cc:	dhowells@...hat.com, mcgrof@...il.com, zohar@...ux.vnet.ibm.com,
	dwmw2@...radead.org, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures [ver #7]

James Morris <jmorris@...ei.org> wrote:

> On Mon, 10 Aug 2015, David Howells wrote:
> 
> > James Morris <jmorris@...ei.org> wrote:
> > 
> > > I get a build failure:
> > > 
> > >   HOSTCC  scripts/sign-file
> > > scripts/sign-file.c:20:25: error: openssl/bio.h: No such file or directory
> > > 
> > > followed by many lines of error.
> > 
> > What openssl do you have installed and do you have the -devel packages for it
> > installed?  In particular libcrypto.
> 
> openssl-1.0.1e-30.el6.11.x86_64
> 
> and not the devel packages.

Yeah, you need the openssl-devel package now.  There's some stuff using the
library directly allows us to do that you can't do with just the command line
tool.

This is mentioned in the

	MODSIGN: Provide a utility to append a PKCS#7 signature to a module

commit description.

	Note that the utility is written in C and must be linked against the
	OpenSSL crypto library.

Would it help to update the module-signing.txt document, the config option or
the git pull request/cover note?

David
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