Remove the current xenserver implementation - it is obsolete and
since 3.0 we do not support kernel module builds [1].

1. https://mail.openvswitch.org/pipermail/ovs-dev/2022-July/395789.html

[i.maximets]
Can be added back if people willing to maintain it will be found.

Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

The only way to configure settings on a remote (e.g. inactivity_probe)
is via --remote=db:DB,table,row. There is no way to do this via the
existing CLI options.

For a clustered DB with multiple servers listening on unique addresses
there is no way to store these entries in the DB as the DB is shared.
For example, three servers listening on  1.1.1.1, 1.1.1.2, and 1.1.1.3
respectively would require a Manager/Connection row each, but then
all three servers would try to listen on all three addresses.

It is possible for ovsdb-server to serve multiple databases. This
means that we can have a local "config" database in addition to
the main database we are serving (Open_vSwitch, OVN_Southbound, etc.)
and this patch adds a Local_Config schema that currently just mirrors
the Connection table and a Config table with a 'connections' row that
stores each Connection.

Signed-off-by: Terry Wilson <twilson@redhat.com>
Acked-by: Dumitru Ceara <dceara@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

Builds on RHEL 8.2 systems are failing due to this issue.

See [1] as to why this is necessary.

I used the following command to identify files that need this fix:
find . -type f -executable | /usr/lib/rpm/redhat/brp-mangle-shebangs

I also updated the copyright notices as needed.

1. https://fedoraproject.org/wiki/Changes/Make_ambiguous_python_shebangs_error

Fixes: 1ca0323e7c29 ("Require Python 3 and remove support for Python 2.")
Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

Since Python 2 support was removed in 1ca0323e7c29 ("Require Python 3 and
remove support for Python 2."), python3-six is not needed anymore.

Moreover python3-six is not available on RHEL/CentOS7 without using EPEL
and so this patch is needed in order to release OVS 2.13 on RHEL7.

Signed-off-by: Timothy Redaelli <tredaelli@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

This workaround only applied to kernels earlier than 2.6.37, but OVS
only supports 3.10 and later.

As the original author of this code, I won't miss it.

Tested-by: Greg Rose <gvrose8192@gmail.com>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

I don't actually have any idea whether XenServer has moved
forward to Python 3 these days, but these files are still
OK in Python 2.x as well.

The rest of the Python files in OVS seem to already be OK in
Python 3.

Acked-by: Numan Siddique <nusididq@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

OVN is separated into its own repo. This commit removes the OVN source,
OVN tests, and OVN documentation. It also removes mentions of OVN from
most documentation. The only place where OVN has been left is in
changelogs/NEWS, since we shouldn't mess with the history of the
project.

There is an exception here. The ovsdb-cluster tests rely on ovn-nbctl
and ovn-sbctl to run. Therefore those ovn utilities, as well as their
dependencies remain in the repo with this commit.

Acked-by: Numan Siddique <nusiddiq@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

It's always been OVS coding style to use spaces rather than tabs for
indentation, but some tabs have snuck in over time.  This commit converts
them to spaces.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Justin Pettit <jpettit@ovn.org>

The _Server database is valuable primarily because it provides database
clients a way to find out the details of changes to databases, schemas,
etc. in a granular, natural way.  Until now, the only way that the server
could notify clients about these kinds of changes was to close the session;
when the client reconnects, it is expected to reassess the server's state.
One way to provide this kind of granular information would be to add
specific JSON-RPC requests to obtain notifications for different kinds of
changes, but since ovsdb-server already provides granular and flexible
notification support for databases, using a database for the purpose is
convenient and avoids duplicating functionality.

Initially this database only reports databases' names and schemas, but
when clustering support is added in a later commit it will also report
important aspects of clustering and cluster status.  Thus, this database
also reduces the need to add JSON-RPC calls to retrieve information about
new features.

Signed-off-by: Ben Pfaff <blp@ovn.org>

It's becoming more common that OSes include "ip" but not "ifconfig", so
it's best to avoid using the latter.  This commit removes most references
to "ifconfig" and replaces them by "ip".  It also adds a build-time check
to make it harder to introduce new uses of "ifconfig".

There are important differences between "ifconfig" and "ip":

- An "ifconfig" command that sets an IP address also brings the interface
  up, but a similar "ip addr add" command does not, so it is often necessary
  (or at least precautionary) to add an "ip link set <dev> up" command.

- "ifconfig" can infer a netmask from an IP adddress, but "ip" always
  assumes /32 if none is given.

- "ifconfig" with address 0.0.0.0 removes any configured IP address, but
  "ip addr add" does not, so "ifconfig <dev> 0.0.0.0" must be replaced by
  "ip addr del" or "ip addr flush".

Signed-off-by: Ben Pfaff <blp@ovn.org>