Related to #32947 Four ftplib tests are failing with OpenSSL 1.1.1-pre8 and TLS 1.3 enabled. All failing tests use a separate data connection and transfer data on the server. For store operations, the client never calls recv(). This breaks bidirectional shutdown. I assume there are session tickets stuck on the wire. ====================================================================== ERROR: test_storbinary (test.test_ftplib.TestTLS_FTPClassMixin) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/heimes/dev/python/cpython/Lib/test/test_ftplib.py", line 591, in test_storbinary self.client.storbinary('stor', f) File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 514, in storbinary conn.unwrap() File "/home/heimes/dev/python/cpython/Lib/ssl.py", line 1091, in unwrap s = self._sslobj.shutdown() OSError: [Errno 0] Error ====================================================================== ERROR: test_storbinary_rest (test.test_ftplib.TestTLS_FTPClassMixin) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/heimes/dev/python/cpython/Lib/test/test_ftplib.py", line 603, in test_storbinary_rest self.client.storbinary('stor', f, rest=r) File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 514, in storbinary conn.unwrap() File "/home/heimes/dev/python/cpython/Lib/ssl.py", line 1091, in unwrap s = self._sslobj.shutdown() OSError: [Errno 0] Error ====================================================================== ERROR: test_storlines (test.test_ftplib.TestTLS_FTPClassMixin) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/heimes/dev/python/cpython/Lib/test/test_ftplib.py", line 608, in test_storlines self.client.storlines('stor', f) File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 545, in storlines conn.unwrap() File "/home/heimes/dev/python/cpython/Lib/ssl.py", line 1091, in unwrap s = self._sslobj.shutdown() OSError: [Errno 0] Error ====================================================================== ERROR: test_data_connection (test.test_ftplib.TestTLS_FTPClass) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/heimes/dev/python/cpython/Lib/test/test_ftplib.py", line 889, in test_data_connection self.assertEqual(self.client.voidresp(), "226 transfer complete") File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 251, in voidresp resp = self.getresp() File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 236, in getresp resp = self.getmultiline() File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 222, in getmultiline line = self.getline() File "/home/heimes/dev/python/cpython/Lib/ftplib.py", line 204, in getline line = self.file.readline(self.maxline + 1) File "/home/heimes/dev/python/cpython/Lib/socket.py", line 589, in readinto return self._sock.recv_into(b) socket.timeout: timed out ---------------------------------------------------------------------- Ran 88 tests in 9.402s FAILED (errors=4, skipped=1)

The "OSError: [Errno 0] Error" failures are caused by session ticket handling in two way shutdown. I reported the issue a while ago https://github.com/openssl/openssl/issues/6262 and it's fixed in OpenSSL git master (to be released as 1.1.1-pre9). The error in test_data_connection is actually "[SSL] shutdown while in init". The dummy server code is failing, because the client starts a two way shutdown before the full handshake has been established. A simple recv() call is good enough to finalize the handshake.

 New changeset 1590c393360df059160145e7475754427bfc6680 by Christian Heimes in branch 'master': bpo-34391: Fix ftplib test for TLS 1.3 (GH-8787) https://github.com/python/cpython/commit/1590c393360df059160145e7475754427bfc6680 

 New changeset 870247a57e84ccaa3f6a6ce955f4168632b967a8 by Christian Heimes (Miss Islington (bot)) in branch '3.7': [3.7] bpo-34391: Fix ftplib test for TLS 1.3 (GH-8787) (GH-8789) https://github.com/python/cpython/commit/870247a57e84ccaa3f6a6ce955f4168632b967a8 

 New changeset cabe916dc694997d4892b58986e73a713d5a2f8d by Christian Heimes (Miss Islington (bot)) in branch '3.6': [3.6] bpo-34391: Fix ftplib test for TLS 1.3 (GH-8787) (#8790) https://github.com/python/cpython/commit/cabe916dc694997d4892b58986e73a713d5a2f8d 

 New changeset 2ec530cd5537dfda5ca0af6ac696e45013ed31d2 by Christian Heimes in branch '2.7': [2.7] bpo-34391: Fix ftplib test for TLS 1.3 (GH-8787) (GH-8791) https://github.com/python/cpython/commit/2ec530cd5537dfda5ca0af6ac696e45013ed31d2 

Is there more to do on this? Tests pass on Windows with 1 skip, but I don't know if the failure condition applies here. test_check_hostname (test.test_ftplib.TestTLS_FTPClass) ... skipped 'FIXME: bpo-32706'

I don't think there is anything left to do.