Re: git: a098111a28ed - main - secure: Add ssh-sk-client to all consumers of libssh

From: Jessica Clarke <jrtc27_at_freebsd.org>
Date: Thu, 24 Apr 2025 22:56:03 UTC 
On 24 Apr 2025, at 23:45, Shawn Webb <shawn.webb@hardenedbsd.org> wrote:
> On Tue, Apr 22, 2025 at 02:07:50AM +0000, John Baldwin wrote:
>> The branch main has been updated by jhb:
>> 
>> URL: https://cgit.FreeBSD.org/src/commit/?id=a098111a28ed59e1ab1101ad09913f0235ebd28f
>> 
>> commit a098111a28ed59e1ab1101ad09913f0235ebd28f
>> Author:     John Baldwin <jhb@FreeBSD.org>
>> AuthorDate: 2025-04-22 02:05:28 +0000
>> Commit:     John Baldwin <jhb@FreeBSD.org>
>> CommitDate: 2025-04-22 02:05:28 +0000
>> 
>>    secure: Add ssh-sk-client to all consumers of libssh
>> 
>>    These all failed to link with ld.bfd used by GCC due to
>>    Fssh_sshsk_sign being an unresolved symbol.
>> 
>>    Fixes:          65d8491719bb ("secure: Adapt Makefile to ssh-sk-client everywhere")
> 
> Hey John,
> 
> I'm getting the following error from the RTLD when the rc scripts
> start sshd:
> 
> ==== BEGIN LOG ====
> ld-elf.so.1: /usr/lib/libprivatessh.so.5: Undefined symbol "Fssh_sshsk_sign
> ==== END LOG ====
> 
> This is on HardenedBSD 15-CURRENT/amd64. I'll try to reproduce next
> week with vanilla FreeBSD, unless someone else beats me to it.

I don’t understand how this is meant to work. sshsk_sign is used by
sshkey.c, which is in libssh, so why are we putting the definition of
sshsk_sign (namespaced) in each and every program?

Jess