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Use only non-executable memory when using MmGetSystemAddressForMdlSafe.
Introduce a new function called OvsGetMdlWithLowPriority for readability.
Found using WDK 10 static code analysis.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Shashank Ram <shashank08@gmail.com>
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Decap functions for tunneling protocols do not compute
the packet header offsets correctly when there is a VLAN
tag in the L2 header. This results in incorrect checksum
computation causing the packet to be dropped.
This patch adds support to account for the VLAN tag in the
packet if its present, and makes use of the OvsExtractLayers()
function to correctly compute the header offsets for different
layers.
Testing done:
- Tested Geneve, STT, Vxlan and Gre and verified that there
are no regressions.
- Verified that packets with VLAN tags are correctly handled
in the decap code of all tunneling protocols. Previously,
this would result in packet drops due to invalid checksums
being computed.
- Verified that non-VLAN tagged packets are handled correctly.
Signed-off-by: Shashank Ram <rams@vmware.com>
Acked-by: Anand Kumar <kumaranand@vmware.com>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
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Currently, the OvsLookupFlow fails for the decap packet,
when the Geneve options are present in the packet as the OvsIPv4TunnelKey
flags are not set in the Geneve decap.
Set the OvsIPv4TunnelKey flags OVS_TNL_F_OAM and OVS_TNL_F_CRT_OPT
in OvsDecapGeneve based on the geneve header. Also set OVS_TNL_F_GENEVE_OPT
if the packet has geneve options.
Signed-off-by: Anand Kumar <kumaranand@vmware.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@ovn.org>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
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With this patch, OvsTcpSegmentNBL not only supports fragmenting NBL
to TCP segments but also Ipv4 fragments.
To reflect the new changes, renamed function name from OvsTcpSegmentNBL
to OvsFragmentNBL and created a wrapper for OvsTcpSegmentNBL.
Signed-off-by: Anand Kumar <kumaranand@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
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Change the UDP destination port(GENEVE header) to check if it was set by
the userspace, use it if it was set.
If the userspace did not specify a destination port, use the configured
vport destination port.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
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This patch adds multiple internal ports support to the windows datapath.
All tunnels types have been updated to accommodate this new functionality.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Co-authored-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Paul Boca <pboca@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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The purpose of this patch is to make the code more readable and
fix a static analyzer warning.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Signed-off-by: Yin Lin <linyi@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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