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author | Wilson Peng <pweisong@vmware.com> | 2022-04-06 21:18:19 +0800 |
---|---|---|
committer | Alin-Gabriel Serdean <aserdean@ovn.org> | 2022-04-10 05:18:59 +0300 |
commit | edb2335861d629f791467f77729e743378dac15f (patch) | |
tree | 82268b884ee34ba9aa689eec2ea3708649971ee4 /datapath-windows/ovsext/Geneve.h | |
parent | 9d70f4a7c3df3bb33e64d8866e3aa752d747de70 (diff) | |
download | openvswitch-edb2335861d629f791467f77729e743378dac15f.tar.gz |
datapath-windows: Add IPv6 Geneve tunnel support in Windows
In the first step OVS Windows will support IPv6 tunnel(Geneve IPv6 tunnel).
Implementation on Windows
-------------------------
1. For the IPv6 tunnel support, OvsIPTunnelKey will replace original
OvsIPv4TunnelKey in the related flow context handing.
2. The related src and dst address will be changed to SOCKADDR_INET type from UINT32.
3. For the IPv6 tunnel, one node running OVS-Windows could encapsulate IPv4/IPv6
Packets via IPV6 Geneve Tunnel, and the node could also encapsulate IPv4/IPv6 packet
Via IPv4 Geneve tunnel.
4. Related IPHelper data structure will be adapted to support IPv6 Tunnel. In the IPHelper
part the related Windows API(such as GetUnicastIpAddressTable/GetBestRoute2/GetIpNetEntry2/
ResolveIpNetEntry2) and Windows data structure(MIB_IPFORWARD_ROW2/MIB_IPNET_ROW2/IP_ADDRESS_PREFIX)
Have already supported both IPv4 and IPV6. Now OVS Windows has been adjusted some functions
And data structured to support IPV6 tunnel also.
5. OVS_TUNNEL_KEY_ATTR_IPV6_SRC and OVS_TUNNEL_KEY_ATTR_IPV6_DST filed will be supported in
OVS-Windows kernel for IPV6 tunnel.
Testing done.
-------------------------
Related topo, 1 Windows VM(Win2019) and 2 Ubuntu 16.04 server. Both VMs
Are running on one ESX host.
1. Setup one IPV6 Geneve Tunnel between 1 Windows VM and 1 Ubuntu server.
Windows VM, vif0( 6000::2/40.1.1.10) vif1(5000::2)—— Ubuntu VM Eth2(5000::9), name space ns1
with interface ns1_link_peer(6000::9/40.1.1.2)
Related tunnnel,
ovs-vsctl.exe add-port br-int bms-tun0 -- set interface bms-tun0 type=Geneve options:csum=true
options:key=flow options:local_ip="5000::2" options:remote_ip=flow
In this topo, traffic from Vif0(Win) to ns1_link_peer(Ubuntu) will be gone through the Geneve tunnel
(5000::2—>5000::9) for both IPv4 traffic(40.1.1.10-->40.1.1.2) and IPv6 traffic(6000::2—>6000::9)
2. Setup one IPV4 Geneve Tunnel between Windows VM and 1 Ubuntu server.
Windows VM, vif0( 6000::2/40.1.1.10) vif1(50.1.1.11)—— Ubuntu, Eth2(50.1.1.9), name space ns1
with interface ns1_link_peer(6000::19/40.1.1.9)
Related tunnnel,
ovs-vsctl.exe -- set Interface bms-tun0 type=geneve options:csum=true options:key=flow
options:local_ip="50.1.1.11" options:remote_ip=flow
In this topo, traffic from Vif0(Win) to ns1_link_peer(Ubuntu) will be gone through the Geneve Tunnel
(50.1.1.11—>50.1.1.9) for both IPv4 traffic(40.1.1.10-->40.1.1.9) and IPv6 traffic(6000::2—>6000::19).
3.Regression test for IpV4 in Antrea project (about 60 test case) is PASS
Future Work
-----------
Add other type IPv6 tunnel support for Gre/Vxlan/Stt.
Signed-off-by: Wilson Peng <pweisong@vmware.com>
Signed-off-by: Alin-Gabriel Serdean <aserdean@ovn.org>
Diffstat (limited to 'datapath-windows/ovsext/Geneve.h')
-rw-r--r-- | datapath-windows/ovsext/Geneve.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/datapath-windows/ovsext/Geneve.h b/datapath-windows/ovsext/Geneve.h index db758dd07..6307479d1 100644 --- a/datapath-windows/ovsext/Geneve.h +++ b/datapath-windows/ovsext/Geneve.h @@ -87,7 +87,7 @@ VOID OvsCleanupGeneveTunnel(POVS_VPORT_ENTRY vport); NDIS_STATUS OvsEncapGeneve(POVS_VPORT_ENTRY vport, PNET_BUFFER_LIST curNbl, - OvsIPv4TunnelKey *tunKey, + OvsIPTunnelKey *tunKey, POVS_SWITCH_CONTEXT switchContext, POVS_PACKET_HDR_INFO layers, PNET_BUFFER_LIST *newNbl, @@ -95,7 +95,7 @@ NDIS_STATUS OvsEncapGeneve(POVS_VPORT_ENTRY vport, NDIS_STATUS OvsDecapGeneve(POVS_SWITCH_CONTEXT switchContext, PNET_BUFFER_LIST curNbl, - OvsIPv4TunnelKey *tunKey, + OvsIPTunnelKey *tunKey, PNET_BUFFER_LIST *newNbl); static __inline UINT32 @@ -114,6 +114,21 @@ OvsGetGeneveTunHdrMaxSize(VOID) } static __inline UINT32 +OvsGetGeneveIPv6TunHdrMinSize(VOID) +{ + /* XXX: Can L2 include VLAN at all? */ + return sizeof (EthHdr) + sizeof (IPv6Hdr) + sizeof (UDPHdr) + + sizeof (GeneveHdr); +} + +static __inline UINT32 +OvsGetGeneveIPv6TunHdrMaxSize(VOID) +{ + /* XXX: Can L2 include VLAN at all? */ + return OvsGetGeneveIPv6TunHdrMinSize() + TUN_OPT_MAX_LEN; +} + +static __inline UINT32 OvsGetGeneveTunHdrSizeFromLayers(POVS_PACKET_HDR_INFO layers) { return layers->l7Offset + sizeof(GeneveHdr); |