Implements supports for the Group Policy VXLAN extension [0] to provide a lightweight and simple security label mechanism across network peers based on VXLAN. The security context and associated metadata is mapped to/from skb->mark. This allows further mapping to a SELinux context using SECMARK, to implement ACLs directly with nftables, iptables, OVS, tc, etc.
The extension is disabled by default and should be run on a distinct port in mixed Linux VXLAN VTEP environments. Liberal VXLAN VTEPs which ignore unknown reserved bits will be able to receive VXLAN-GBP frames. Simple usage example: 10.1.1.1: # ip link add vxlan0 type vxlan id 10 remote 10.1.1.2 gbp # iptables -I OUTPUT -m owner --uid-owner 101 -j MARK --set-mark 0x200 10.1.1.2: # ip link add vxlan0 type vxlan id 10 remote 10.1.1.1 gbp # iptables -I INPUT -m mark --mark 0x200 -j DROP iproute2 [1] and OVS [2] support will be provided in separate patches. [0] https://tools.ietf.org/html/draft-smith-vxlan-group-policy [1] https://github.com/tgraf/iproute2/tree/vxlan-gbp [2] https://github.com/tgraf/ovs/tree/vxlan-gbp Thomas Graf (6): vxlan: Allow for VXLAN extensions to be implemented vxlan: Group Policy extension vxlan: Only bind to sockets with correct extensions enabled vxlan: Fail build if VXLAN header is misdefined openvswitch: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS() openvswitch: Support VXLAN Group Policy extension drivers/net/vxlan.c | 221 +++++++++++++++++++++++++++------------ include/net/vxlan.h | 104 ++++++++++++++++-- include/uapi/linux/if_link.h | 8 ++ include/uapi/linux/openvswitch.h | 19 ++++ net/openvswitch/flow.c | 2 +- net/openvswitch/flow.h | 14 +-- net/openvswitch/flow_netlink.c | 111 ++++++++++++-------- net/openvswitch/vport-vxlan.c | 89 +++++++++++++++- 8 files changed, 435 insertions(+), 133 deletions(-) -- 1.9.3 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
