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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>
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Formerly, there is no tunnel information appended in the upcall’s
packet data, which is expected by IPFIX in userspace to calculate
the template for exporting the sampled flow record of on egress
tunnel port.
To fix this, during performing OvsOutputUserspaceAction(), we
would check whether it is initiated by the sampling on egress
tunnel which would be indicated by the attribute as
OVS_USERSPACE_ATTR_EGRESS_TUN_PORT in the nested attribute
list. If so, we would append the tunKey in OvsForwardingContext
indexed by OVS_PACKET_ATTR_EGRESS_TUN_KEY to the upcall.
Besides, at this point, the source transport port and source ip
address are not available in the structure, so we have to fill it in the
way how the packet would be capsulated during performing
OvsEncapGeneve(), which is following the
OvsOutputUserspaceAction() unfortunately.
I have tested the IPFIX functionality with the change, we could see the
template is correct and the expected tunnel information could be
packed in the IPFIX packet finally. The traffic for test is generated by
PING utility.
>From d727d051c9a44a4a93e5ee5f3da3ca9b125aad29 Mon Sep 17 00:00:00 2001
From: Amber Hu <qhu@vmware.com>
Date: Thu, 30 Jan 2020 18:01:32 -0800
Subject: [PATCH v3] datapath-windows: Append tunnel info to upcall for correct
template
Signed-off-by: Amber Hu <qhu@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@ovn.org>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
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Simple code motion.
Signed-off-by: Nithin Raju <nithin@vmware.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Refactored CreateQueue function so that packets are enqueued to correct corresponding queue.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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In this patch we have added APIs for insert, delete and search APIs.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
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Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This change includes the following:
[1] Handler for subscribe/unsubscribe to a packet queue associated with a
socket pid.
[2] Allocation of per socket packet queue on a packet subscription.
[3] Removal of static allocated queues.
[4] Freeing the packet queue (on user mode process termination).
Signed-off-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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In this patch we have made following changes:
OvsPacketExecute =>
Changed the data structure to have packet and
actions as pointer (instead of zero length array). It is done because
we will not do memcpy of packet now, pointer will just point
to corresponding offset in input buffer.
OvsExecuteDpIoctl =>
We only need input buffer now. Hence Changed the function signature.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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In this patch we cover the basic registeration of OVS_PACKET_CMD_EXECUTE
command handler.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Remove hard coded queue is, pass the key rather the tunnel key,
Remove the none NL implementation
Signed-off-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This patch includes the file renaming and accommodations needed for the file
renaming to build the forwarding extension for Hyper-V.
This patch is also a follow-up for the thread:
http://openvswitch.org/pipermail/dev/2014-August/044005.html
Signed-off-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Co-authored-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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