Hi,
On Thu, Aug 10, 2017 at 3:48 PM, Pingfan Liu <piliu(a)redhat.com> wrote:
----- Original Message -----
> From: "Ziyue Yang" <ziyang(a)redhat.com>
> To: kexec(a)lists.fedoraproject.org
> Cc: "Ziyue Yang" <ziyang(a)redhat.com>
> Sent: Thursday, August 10, 2017 3:27:19 PM
> Subject: [PATCH v4 2/2] dracut-kdump.sh: support 'kdump-' prefixed
interfaces in dump_ssh
>
> This commit makes dump_ssh
> 1) add 'kdump-' prefix to ipv6 hosts with 'eth*' like
> interfaces before dumping to the host;
> 2) cancel 'StrictHostKeyChecking' for link local ipv6
> address with 'eth*' like interface names, for it's not
> possible to add 'kdump-' variants in hased known_hosts
>
So this only affect the process of dumping, not side-effect when kdump
propagate, right?
yes, it's controlled by ssh and scp's arguments while dumping.
Thanks,
Pingfan
> Signed-off-by: Ziyue Yang <ziyang(a)redhat.com>
> ---
> dracut-kdump.sh | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/dracut-kdump.sh b/dracut-kdump.sh
> index b75c2a5..d0674b3 100755
> --- a/dracut-kdump.sh
> +++ b/dracut-kdump.sh
> @@ -71,10 +71,27 @@ dump_raw()
>
> dump_ssh()
> {
> - local _opt="-i $1 -o BatchMode=yes -o StrictHostKeyChecking=yes"
> + local _opt="-i $1 -o BatchMode=yes"
> local _dir="$KDUMP_PATH/$HOST_IP-$DATEDIR"
> local _host=$2
>
> + # add "kdump-" prefix to network interface name for
> + # link-local ipv6 address, and cancel HostKeyChecking
> + # for it's not possible to add "kdump-" variants
> + # to hashed known_hosts
> + if [[ $_host == *":"* ]]; then
> + local _host_prefix=${_host%\%*}
> + local _ifname=${_host##*\%}
> + if [[ $_ifname == "eth"* ]]; then
> + _host="$_host_prefix%kdump-$_ifname"
> + _opt+=" -o StrictHostKeyChecking=no"
> + else
> + _opt+=" -o StrictHostKeyChecking=yes"
> + fi
> + else
> + _opt+=" -o StrictHostKeyChecking=yes"
> + fi
> +
> echo "kdump: saving to $_host:$_dir"
>
> cat /var/lib/random-seed > /dev/urandom
> --
> 2.9.3
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