The goal of this series is to allow OVS to send packets through the Linux kernel connection tracker, and subsequently match on fields populated by conntrack.
This version addresses the feedback from v2, mostly going over the dst reference taking and skb metadata to check that they are restored correctly after fragmentation. This functionality is enabled through the CONFIG_OPENVSWITCH_CONNTRACK option. The branch below has been updated with the corresponding userspace pieces: https://github.com/justinpettit/ovs conntrack v3: Better handling of skb->dst in output/fragmentation Address cases involving l2 metadata and checksums Make MRU types more consistent Better cleanup in error paths Fix sparse warnings v2: Split out per-netns connlabel width setting functions Simplify reference tracking in output path. Handle output cases where flow key is invalidated by prior push/pop Store entire L2 header to apply to fragments Various bits of refactoring, comments, styles, log improvements Defer patch to scrub skb Rebase v1: First non-RFC post. Fragment handling. Conntrack label support. Joe Stringer (9): openvswitch: Serialize acts with original netlink len openvswitch: Move MASKED* macros to datapath.h ipv6: Export nf_ct_frag6_gather() dst: Add __skb_dst_copy() variation openvswitch: Add conntrack action netfilter: Always export nf_connlabels_replace() netfilter: connlabels: Export setting connlabel length openvswitch: Allow matching on conntrack label openvswitch: Allow attaching helpers to ct action Justin Pettit (1): openvswitch: Allow matching on conntrack mark include/net/dst.h | 9 +- include/net/netfilter/nf_conntrack_labels.h | 4 + include/uapi/linux/openvswitch.h | 49 ++ net/ipv6/netfilter/nf_conntrack_reasm.c | 1 + net/netfilter/nf_conntrack_labels.c | 34 +- net/netfilter/xt_connlabel.c | 16 +- net/openvswitch/Kconfig | 11 + net/openvswitch/Makefile | 2 + net/openvswitch/actions.c | 232 ++++++++-- net/openvswitch/conntrack.c | 688 ++++++++++++++++++++++++++++ net/openvswitch/conntrack.h | 126 +++++ net/openvswitch/datapath.c | 74 ++- net/openvswitch/datapath.h | 12 + net/openvswitch/flow.c | 5 + net/openvswitch/flow.h | 9 + net/openvswitch/flow_netlink.c | 103 ++++- net/openvswitch/flow_netlink.h | 4 +- net/openvswitch/vport.c | 1 + 18 files changed, 1299 insertions(+), 81 deletions(-) create mode 100644 net/openvswitch/conntrack.c create mode 100644 net/openvswitch/conntrack.h -- 2.1.4 -- 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
