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Post Conntrack delete and create events when entries are deleted or
created.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Paul Boca <pboca@cloudbasesolutions.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-By: Yin Lin <linyi@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Tweak the OvsCreateNlMsgFromCtEntry() method to reuse it for creating
netlink messages from other files. Also define the function in Conntrack.h
to make it accessible.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-By: Yin Lin <linyi@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-By: Yin Lin <linyi@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Add a counter to track the number of connection tracking entries. Iterate
over the conntrack entry table only if there are entries.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Create the methods used for dumping conntrack entries from the hyper-v
datapath to userspace by means of netfilter netlink messages. Some of the
attributes are not supported by the datapath and have been defaulted to 0.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Paul-Daniel Boca <pboca@cloudbasesolutions.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Flush out all conntrack entries or those that match a given zone. Since
the conntrack module is internal to OVS in Windows, this functionality
needs to be added in.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Paul-Daniel Boca <pboca@cloudbasesolutions.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Initialize the variable pktMdLabel.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Enable support for UDP and ICMP in the connection tracking module on
Hyper-V. Define 1s as variable and reuse it.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Add braces around the if statement to prevent Visual Studio from giving
the "error C2275: illegal use of this type as an expresion". This happens
when a variable is declared after a block. This error occurs on certain
versions of compilers.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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Minor refactors around naming and reusability in lieu of adding support for other
protocols for tracking connections.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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Enable support for Stateful Firewall in Hyper-V by adding a Connection
Tracking module. The module has been ported over from the userspace
implementation patch of a similar name.
The current version of the module supports ct - zone, mark and label for
TCP packets. Support for other packet formats will be added in subsequent
patches.
The conntrack-tcp module is adapted from FreeBSD's pf subsystem and hence
the BSD license. It has been ported over to match OVS Hyper-V coding
style.
Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Co-Authored-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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