[LEDE-DEV] [PATCH] Add ip_vs kernel netfilter modules to enable load balancing capabilities

[Jonas Gorski]

On 19 February 2017 at 13:01, Mauro Mozzarelli <openwrt at ezplanet.net> wrote:
> Author: Mauro Mozzarelli <mauro at ezplanet.org>
> Date:   Sun Feb 19 11:33:23 2017 +0000
>
>     IPVS (IP Virtual Server) implements transport-layer load balancing
> inside the Linux kernel, so called Layer-4 switching. IPVS running on a host
> acts as a load balancer at the front of a cluster of real servers, it can
> direct requests for TCP/UDP based services to the real servers, and makes
> services of the real servers to appear as a virtual service on a single IP
> address.
>
>     This patch adds kmod-nf-ipvs kernel modules option to LEDE kernel
> netfilter
>
>     Signed-off-by: Mauro Mozzarelli <mauro at ezplanet.org>
>
> diff --git a/package/kernel/linux/modules/netfilter.mk
> b/package/kernel/linux/modules/netfilter.mk
> index 6162dbc..7c51d9f 100644
> --- a/package/kernel/linux/modules/netfilter.mk
> +++ b/package/kernel/linux/modules/netfilter.mk
> @@ -271,6 +271,117 @@ define KernelPackage/ipt-ipset
>  endef
>  $(eval $(call KernelPackage,ipt-ipset))
>
> +IPVS_K3_MODULES:= \
> +    ip_vs \
> +    ip_vs_lc \
> +    ip_vs_wlc \
> +    ip_vs_rr \
> +    ip_vs_wrr \
> +    ip_vs_lblc \
> +    ip_vs_lblcr \
> +    ip_vs_dh \
> +    ip_vs_sh \
> +    ip_vs_fo \
> +    ip_vs_nq \
> +    ip_vs_sed \
> +    ip_vs_ftp

(snip)

> +IPVS_K4_MODULES:= \
> +    ip_vs \
> +    ip_vs_lc \
> +    ip_vs_wlc \
> +    ip_vs_rr \
> +    ip_vs_wrr \
> +    ip_vs_lblc \
> +    ip_vs_lblcr \
> +    ip_vs_dh \
> +    ip_vs_sh \
> +    ip_vs_fo \
> +    ip_vs_nq \
> +    ip_vs_sed

These seem mostly the same, the only difference is ip_vs_ftp in 3.18.
You can annotate the FILES with kernel versions, e.g.
ip_vs_ftp.ko at lt4.0" would mean "copy this file only if kernel version
is less than 4.0". That way you should be able to just have one
KernelPackage definition.


Regards
Jonas