linux-kernel - Re: Fwd: sign-file.c:149:17: warning: implicit declaration of function ‘ENGINE_load_builtin

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Message-ID: <7fce272f-65f5-9aa8-5f28-aeecb98a8ab4@blastwave.org>
Date:   Thu, 23 Nov 2023 18:42:27 -0500
From:   Dennis Clarke <dclarke@...stwave.org>
To:     James Bottomley <James.Bottomley@...senPartnership.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kernel Build System <linux-kbuild@...r.kernel.org>,
        Linux Kernel Keyrings <keyrings@...r.kernel.org>
Cc:     David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: Re: Fwd: sign-file.c:149:17: warning: implicit declaration of function ‘ENGINE_load_builtin_engines’

On 11/23/23 09:53, James Bottomley wrote:
> On Fri, 2023-11-17 at 00:34 -0500, Dennis Clarke wrote:
>> On 11/16/23 18:41, Bagas Sanjaya wrote:
>>> Hi,
>>>
>>> I notice a bug report on Bugzilla [1]. Quoting from it:
>>>
>> <snip>
>>>> Not related to
>>>> https://bugzilla.kernel.org/show_bug.cgi?id=215750 but I *feel*
>>>> that this code needs a hug.
>>>
>>> See Bugzilla for the full thread.
>>>
>>> AFAIK, this looks like a bug when the kernel is compiled against
>>> custom (non-system) version of OpenSSL library.
>>>
>>
>> I do not know what you could possibly mean. There is nothing "custom"
>> about OpenSSL. For that matter the gcc compiler I am using was also
>> built by me. Works fine. The sign-file.c source compiles fine.
> 
> This has all the hallmarks of an openssl compiled without engine
> support; is the symbol OPENSSL_NO_ENGINE set?  And which distro did you
> get this library from?
> 
> James
> 

I am looking into this. The code will likely age into some deprecated
calls and I think that I may be way out on the edge here. However the
code will need a pile of ifndef stuff and then call the correct future
looking calls for OpenSSL 3.x etc etc etc ... the usual stuff

Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken