From: Roopa Prabhu <ro...@cumulusnetworks.com> This series implements infrastructure for light weight tunnels to support mpls label edge routers (ie mpls ip tunnels). As previously discussed having netdevices will not scale. Hence this series introduces new RTA_ENCAP* attributes to attach encap information with routes (following suggestion from Eric Biederman).
The first patch introduces an infrastructure to support light weight tunnels that dont have netdevices. The infrastructure allows tunnel drivers to register handlers to parse and build tunnel encap data which can be attached to each route nexthop. The second patch adds support in ipv4 fib to carry such light weight tunnel encap data. The third patch implements mpls ip tunnels using this light weight tunnel infrastructure. Could not think of a better name, so, it is 'lwt' for 'light weight tunnels' for now. I do have iproute2 patches. Can post them separately if required (they are currently in my github tree https://github.com/CumulusNetworks/iproute2 (mpls branch)) Signed-off-by: Roopa Prabhu <ro...@cumulusnetworks.com> ---- v2: - bug fixes (more testing) - feedback from Thomas - A flag in lwtunnel state that allows using the chosen output device instead of redirecting dst output to the lwt output function. - This flag can be set by the tunnel driver at tunnel state build time - moved lwtstate pointer from dst_entry to rtable (seemed cleaner looking at thomas's openvswitch patches) - moved mpls iptunnel code into separate file (following erics and roberts initial patches) Roopa Prabhu (3): lwt: infrastructure to support light weight tunnels ipv4: add support for light weight tunnel encap attributes mpls: support for ip mpls tunnels include/linux/lwtunnel.h | 6 ++ include/linux/mpls_iptunnel.h | 6 ++ include/net/ip_fib.h | 7 +- include/net/lwtunnel.h | 84 +++++++++++++++ include/net/mpls_iptunnel.h | 29 +++++ include/net/route.h | 3 + include/uapi/linux/lwtunnel.h | 11 ++ include/uapi/linux/mpls_iptunnel.h | 26 +++++ include/uapi/linux/rtnetlink.h | 3 +- net/Kconfig | 5 + net/core/Makefile | 1 + net/core/lwtunnel.c | 162 ++++++++++++++++++++++++++++ net/ipv4/fib_frontend.c | 8 ++ net/ipv4/fib_semantics.c | 93 +++++++++++++++- net/ipv4/route.c | 33 +++++- net/mpls/Kconfig | 5 + net/mpls/Makefile | 1 + net/mpls/af_mpls.c | 9 +- net/mpls/internal.h | 3 + net/mpls/mpls_iptunnel.c | 205 ++++++++++++++++++++++++++++++++++++ 20 files changed, 692 insertions(+), 8 deletions(-) create mode 100644 include/linux/lwtunnel.h create mode 100644 include/linux/mpls_iptunnel.h create mode 100644 include/net/lwtunnel.h create mode 100644 include/net/mpls_iptunnel.h create mode 100644 include/uapi/linux/lwtunnel.h create mode 100644 include/uapi/linux/mpls_iptunnel.h create mode 100644 net/core/lwtunnel.c create mode 100644 net/mpls/mpls_iptunnel.c -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
