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

[Mauro Mozzarelli]

Unfortunately this version of the patch creates an installation conflict 
during the build in case nf-nathelper-extra is selected (which isn't by 
default), because this package contains also nf_conntrack_sip module.

I am posting a new version that puts ip_vs_pe_sip dependency on 
nf-nathelper-extra.


Mauro



On 24/02/17 10:43, Mauro Mozzarelli wrote:
> 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>
> ---
>  package/kernel/linux/modules/netfilter.mk | 100 
> ++++++++++++++++++++++++++++++
>  1 file changed, 100 insertions(+)
>
> diff --git a/package/kernel/linux/modules/netfilter.mk 
> b/package/kernel/linux/modules/netfilter.mk
> index 6162dbc..b712909 100644
> --- a/package/kernel/linux/modules/netfilter.mk
> +++ b/package/kernel/linux/modules/netfilter.mk
> @@ -77,6 +77,28 @@ endef
>  $(eval $(call KernelPackage,nf-conntrack))
>
>
> +define KernelPackage/nf-conntrack-ftp
> +  SUBMENU:=$(NF_MENU)
> +  TITLE:=FTP connection tracking
> +  KCONFIG:=CONFIG_NF_CONNTRACK_FTP
> +  DEPENDS:=kmod-nf-conntrack
> +  FILES:=$(LINUX_DIR)/net/netfilter/nf_conntrack_ftp.ko
> +endef
> +
> +$(eval $(call KernelPackage,nf-conntrack-ftp))
> +
> +
> +define KernelPackage/nf-conntrack-sip
> +  SUBMENU:=$(NF_MENU)
> +  TITLE:=SIP connection tracking
> +  KCONFIG:=CONFIG_NF_CONNTRACK_SIP
> +  DEPENDS:=kmod-nf-conntrack
> +  FILES:=$(LINUX_DIR)/net/netfilter/nf_conntrack_sip.ko
> +endef
> +
> +$(eval $(call KernelPackage,nf-conntrack-sip))
> +
> +
>  define KernelPackage/nf-conntrack6
>    SUBMENU:=$(NF_MENU)
>    TITLE:=Netfilter IPv6 connection tracking
> @@ -271,6 +293,84 @@ define KernelPackage/ipt-ipset
>  endef
>  $(eval $(call KernelPackage,ipt-ipset))
>
> +IPVS_MODULES:= \
> +    ipvs/ip_vs \
> +    ipvs/ip_vs_lc \
> +    ipvs/ip_vs_wlc \
> +    ipvs/ip_vs_rr \
> +    ipvs/ip_vs_wrr \
> +    ipvs/ip_vs_lblc \
> +    ipvs/ip_vs_lblcr \
> +    ipvs/ip_vs_dh \
> +    ipvs/ip_vs_sh \
> +    ipvs/ip_vs_fo \
> +    ipvs/ip_vs_ovf \
> +    ipvs/ip_vs_nq \
> +    ipvs/ip_vs_sed \
> +    xt_ipvs
> +
> +define KernelPackage/nf-ipvs
> +  SUBMENU:=Netfilter Extensions
> +  TITLE:=IP Virtual Server modules
> +  DEPENDS:=@IPV6 +kmod-lib-crc32c +kmod-ipt-conntrack +kmod-nf-conntrack
> +  KCONFIG:= \
> +    CONFIG_IP_VS \
> +    CONFIG_IP_VS_IPV6=y \
> +    CONFIG_IP_VS_DEBUG=n \
> +    CONFIG_IP_VS_PROTO_TCP=y \
> +    CONFIG_IP_VS_PROTO_UDP=y \
> +    CONFIG_IP_VS_PROTO_AH_ESP=y \
> +    CONFIG_IP_VS_PROTO_ESP=y \
> +    CONFIG_IP_VS_PROTO_AH=y \
> +    CONFIG_IP_VS_PROTO_SCTP=y \
> +    CONFIG_IP_VS_TAB_BITS=12 \
> +    CONFIG_IP_VS_RR \
> +    CONFIG_IP_VS_WRR \
> +    CONFIG_IP_VS_LC \
> +    CONFIG_IP_VS_WLC \
> +    CONFIG_IP_VS_FO \
> +    CONFIG_IP_VS_OVF \
> +    CONFIG_IP_VS_LBLC \
> +    CONFIG_IP_VS_LBLCR \
> +    CONFIG_IP_VS_DH \
> +    CONFIG_IP_VS_SH \
> +    CONFIG_IP_VS_SED \
> +    CONFIG_IP_VS_NQ \
> +    CONFIG_IP_VS_SH_TAB_BITS=8 \
> +    CONFIG_IP_VS_NFCT=y \
> +    CONFIG_NETFILTER_XT_MATCH_IPVS
> +
> +  FILES:=$(foreach 
> mod,$(IPVS_MODULES),$(LINUX_DIR)/net/netfilter/$(mod).ko)
> +  $(call AddDepends/ipt,+kmod-ipt-conntrack,+kmod-nf-conntrack)
> +endef
> +$(eval $(call KernelPackage,nf-ipvs))
> +
> +define KernelPackage/nf-ipvs/description
> + IPVS (IP Virtual Server) implements transport-layer load balancing 
> inside the Linux kernel
> + so called Layer-4 switching.
> +endef
> +
> +define KernelPackage/nf-ipvs-ftp
> +  SUBMENU:=$(NF_MENU)
> +  TITLE:=Virtual Server FTP protocol support
> +  KCONFIG:=CONFIG_IP_VS_FTP
> +  DEPENDS:=kmod-nf-ipvs +kmod-nf-nat +kmod-nf-conntrack-ftp
> +  FILES:=$(LINUX_DIR)/net/netfilter/ipvs/ip_vs_ftp.ko
> +endef
> +
> +$(eval $(call KernelPackage,nf-ipvs-ftp))
> +
> +
> +define KernelPackage/nf-ipvs-sip
> +  SUBMENU:=$(NF_MENU)
> +  TITLE:=Virtual Server SIP protocol support
> +  KCONFIG:=CONFIG_IP_VS_PE_SIP
> +  DEPENDS:=kmod-nf-ipvs +kmod-nf-conntrack-sip
> +  FILES:=$(LINUX_DIR)/net/netfilter/ipvs/ip_vs_pe_sip.ko
> +endef
> +
> +$(eval $(call KernelPackage,nf-ipvs-sip))
> +
>
>  define KernelPackage/ipt-nat
>    TITLE:=Basic NAT targets