Re: [PATCH] 95ssh-client: attempt to copy UserKnownHostsFile to kdump's initramfs

[Xunlei Pang <xpang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On 2016/11/25 at 10:11, Tong Li wrote:
> Bug related to this issue: https://bugzilla.redhat.com/show_bug.cgi?id=1360131
> Now dracut only attempts to copy GlobalKnownHostsFile while generating kdump's
> initramfs. This method will cause kdump's failure if users set customized
> UserKnownHostsFile in /etc/ssh/ssh_config. This patch simply attempts to copy
> those files too while going through /etc/ssh/ssh_config. Note that we need to
> make sure ~/foo will be copied as /root/foo in kdump's initramfs.
>
> Signed-off-by: Tong Li <tonli-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  modules.d/95ssh-client/module-setup.sh | 17 ++++++++++++-----
>  1 file changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/modules.d/95ssh-client/module-setup.sh b/modules.d/95ssh-client/module-setup.sh
> index 0a0e80c..bebcae5 100755
> --- a/modules.d/95ssh-client/module-setup.sh
> +++ b/modules.d/95ssh-client/module-setup.sh
> @@ -45,11 +45,18 @@ inst_sshenv()
>          inst_simple /etc/ssh/ssh_config
>          sed -i -e 's/\(^[[:space:]]*\)ProxyCommand/\1# ProxyCommand/' ${initdir}/etc/ssh/ssh_config
>          while read key val || [ -n "$key" ]; do
> -            [[ $key != "GlobalKnownHostsFile" ]] && continue
> -            inst_simple "$val"
> -            break
> -        done < /etc/ssh/ssh_config
> -    fi
> +            if [ $key != "GlobalKnownHostsFile" ]; then

Shouldn't it be "$key = "GlobalKnownHostsFile" instead of "!="?

> +                inst_simple "$val"
> +            # Copy customized UserKnowHostsFile
> +            elif [ $key != "UserKnownHostsFile" ]; then

ditto

> +                # Make sure that ~/foo will be copied as /root/foo in kdump's initramfs
> +                if str_starts "$val" "~/"; then
> +                    val="/root/${val#"~/"}"
> +                fi
> +                inst_simple "$val"

Seems may have "UserKnownHostsFile  no", so it will end up with "inst_simple no".

Regards,
Xunlei

> +            fi
> +         done < /etc/ssh/ssh_config
> +     fi
>  
>      return 0
>  }