Currently, pyOpenSSL is half-deprecated upstream and so it's removed on
some distributions (for example on CentOS Stream 9,
https://issues.redhat.com/browse/CS-336), but since OVS only
supports Python 3 it's possible to replace pyOpenSSL with "import ssl"
included in base Python 3.
Stream recv and send had to be splitted as _recv and _send, since SSLError
is a subclass of socket.error and so it was not possible to except for
SSLWantReadError and SSLWantWriteError in recv and send of SSLStream.
TCPstream._open cannot be used in SSLStream, since Python ssl module
requires the SSL socket to be created before connecting it, so
SSLStream._open needs to create the socket, create SSL socket and then
connect the SSL socket.
Reported-by: Timothy Redaelli <tredaelli@redhat.com>
Reported-at: https://bugzilla.redhat.com/1988429
Signed-off-by: Timothy Redaelli <tredaelli@redhat.com>
Acked-by: Terry Wilson <twilson@redhat.com>
Tested-by: Terry Wilson <twilson@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
The python function ovs.socket_util.check_connection_completion() uses select()
(provided by python) to monitor the socket file descriptor. The select()
returns 1 when the file descriptor becomes ready. For error cases like -
111 (Connection refused) and 113 (No route to host) (POLLERR), ovs.poller._SelectSelect.poll()
expects the exceptfds list to be set by select(). But that is not the case.
As per the select() man page, writefds list will be set for POLLERR.
Please see "Correspondence between select() and poll() notifications" section of select(2)
man page.
Because of this behavior, ovs.socket_util.check_connection_completion() returns success
even if the remote is unreachable or not listening on the port.
This patch fixes this issue by using poll() to check the connection status similar to
the C implementation of check_connection_completion().
A new function 'get_system_poll() is added in ovs/poller.py which returns the
select.poll() object. If select.poll is monkey patched by eventlet/gevent, it
gets the original select.poll() and returns it.
The test cases added in this patch fails without the fix.
Suggested-by: Ben Pfaff <blp@ovn.org>
Signed-off-by: Numan Siddique <nusiddiq@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Mark Michelson <mmichels@redhat.com>
The function poll from poller should return a list of tuples
containing the events and their types.
On Windows the event type is not returned at the moment.
Instead of returning zero all the time, we check to see
the type of event and we set it accordingly before returning
the list.
This is used only for debugging purposes inside the function
"__log_wakeup" later on.
Signed-off-by: Alin Balutoiu <abalutoiu@cloudbasesolutions.com>
Acked-by: Russell Bryant <russell@ovn.org>
Acked-by: Alin Gabriel Serdean <aserdean@ovn.org>
Signed-off-by: Alin Gabriel Serdean <aserdean@ovn.org>
https://review.openstack.org/#/c/432906/
flake8-import-order adds 3 new flake8 warnings:
I100: Your import statements are in the wrong order.
I101: The names in your from import are in the wrong order.
I201: Missing newline between sections or imports.
Signed-off-by: Ben Pfaff <blp@ovn.org>
Unix sockets (AF_UNIX) are not supported on Windows.
The replacement of Unix sockets on Windows is implemented
using named pipes, we are trying to mimic the behaviour
of unix sockets.
Instead of using Unix sockets to communicate
between components Named Pipes are used. This
makes the python sockets compatible with the
Named Pipe used in Windows applications.
Signed-off-by: Paul-Daniel Boca <pboca@cloudbasesolutions.com>
Signed-off-by: Alin Balutoiu <abalutoiu@cloudbasesolutions.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions>
Tested-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
SSL support is added to the ovs/stream.py. pyOpenSSL library is used
to support SSL. If this library is not present, then the SSL stream
is not registered with the Stream class.
Signed-off-by: Numan Siddique <nusiddiq@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
In Python 2, dict.items(), dict.keys(), and dict.values() returned a
list. dict.iteritems(), dict.iterkeys(), and dict.itervalues() returned
an iterator.
As of Python 3, dict.iteritems(), dict.itervalues(), and dict.iterkeys()
are gone. items(), keys(), and values() now return an iterator.
In the case where we want an iterator, we now use the six.iter*()
helpers. If we want a list, we explicitly create a list from the
iterator.
Signed-off-by: Russell Bryant <russell@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>
This patch fixes just the Python 3 problems found by running:
python3 setup.py install
There are still many other issues to be fixed, but this is a start.
Signed-off-by: Terry Wilson <twilson@redhat.com>
[russell@ovn.org resolved conflicts with current master]
Signed-off-by: Russell Bryant <russell@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>
Resolve pep8 errors E302 and E303:
E302 expected 2 blank lines, found 1
E303 too many blank lines (3)
Signed-off-by: Russell Bryant <russell@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>
Python doesn't have select.POLL* constants on some architectures
(e.g. MacOSX). This code needs to define the constants for itself. It
uses select.POLL* constants only internally (doesn't pass them
outside). So there is no harm even if the definition would conflict
with Python's those.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
The changeset of ed815d9bd2 eliminated
the use of select.poll for eventlet/gevent.
It forgot to select.poll in socket_util.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
eventlet/gevent doesn't work well with select.poll because select.poll blocks
python interpreter as a whole instead of switching from the current thread
which is about to block to other runnable thread.
So ovsdb python binding can't be used with eventlet/gevent.
Emulate select.poll with select.select because using python means that
performance isn't so important.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Feature #10593
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This patch does minor style cleanups to the code in the python and
tests directory. There's other code floating around that could use
similar treatment, but updating it is not convenient at the moment.
The timer_wait_until function in poller.py was using Time.msec to
figure out the current time. Unfortunately, Time.msec does not in
exist. Changed to use ovs.timeval.msec .
These initial bindings pass a few hundred of the corresponding tests
for C implementations of various bits of the Open vSwitch library API.
The poorest part of them is actually the Python IDL interface in
ovs.db.idl, which has not received enough attention yet. It appears
to work, but it doesn't yet support writes (transactions) and it is
difficult to use. I hope to improve it as it becomes clear what
semantics Python applications actually want from an IDL.
