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bpo-34271: Fix compatibility with 1.0.2 (GH-13728) 

Fix various compatibility issues with LibreSSL and OpenSSL 1.0.2
introduced by bpo-34271.

Signed-off-by: Christian Heimes <christian@python.org>
This commit is contained in:
Christian Heimes 2019-06-03 20:40:15 +02:00 committed by GitHub
parent 06651ee418
commit e35d1ba9ea
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 22 additions and 46 deletions
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6
Lib/ssl.py
View File

@ -658,12 +658,12 @@ class SSLContext(_SSLContext):
def inner(conn, direction, version, content_type, msg_type, data):
try:
version = TLSVersion(version)
except TypeError:
except ValueError:
pass
try:
content_type = _TLSContentType(content_type)
except TypeError:
except ValueError:
pass
if content_type == _TLSContentType.HEADER:
@ -674,7 +674,7 @@ class SSLContext(_SSLContext):
msg_enum = _TLSMessageType
try:
msg_type = msg_enum(msg_type)
except TypeError:
except ValueError:
pass
return callback(conn, direction, version,

48
Lib/test/test_ssl.py
View File

@ -3703,7 +3703,7 @@ class ThreadedTests(unittest.TestCase):
# client 1.0, server 1.2 (mismatch)
server_context.minimum_version = ssl.TLSVersion.TLSv1_2
server_context.maximum_version = ssl.TLSVersion.TLSv1_2
client_context.minimum_version = ssl.TLSVersion.TLSv1
client_context.maximum_version = ssl.TLSVersion.TLSv1
client_context.maximum_version = ssl.TLSVersion.TLSv1
with ThreadedEchoServer(context=server_context) as server:
with client_context.wrap_socket(socket.socket(),
@ -4529,50 +4529,16 @@ class TestSSLDebug(unittest.TestCase):
server_hostname=hostname) as s:
s.connect((HOST, server.port))
self.assertEqual(msg, [
("write", TLSVersion.TLSv1, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("write", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.CLIENT_HELLO),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.SERVER_HELLO),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.CERTIFICATE),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
self.assertIn(
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.SERVER_KEY_EXCHANGE),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.SERVER_DONE),
("write", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("write", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.CLIENT_KEY_EXCHANGE),
("write", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.FINISHED),
msg
)
self.assertIn(
("write", TLSVersion.TLSv1_2, _TLSContentType.CHANGE_CIPHER_SPEC,
_TLSMessageType.CHANGE_CIPHER_SPEC),
("write", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("write", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.FINISHED),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.NEWSESSION_TICKET),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.FINISHED),
("read", TLSVersion.TLSv1_2, _TLSContentType.HEADER,
_TLSMessageType.CERTIFICATE_STATUS),
("read", TLSVersion.TLSv1_2, _TLSContentType.HANDSHAKE,
_TLSMessageType.FINISHED),
])
msg
)
def test_main(verbose=False):

9
Modules/_ssl/debughelpers.c
View File

@ -1,5 +1,12 @@
/* Debug helpers */
#ifndef SSL3_MT_CHANGE_CIPHER_SPEC
/* Dummy message type for handling CCS like a normal handshake message
* not defined in OpenSSL 1.0.2
*/
#define SSL3_MT_CHANGE_CIPHER_SPEC 0x0101
#endif
static void
_PySSL_msg_callback(int write_p, int version, int content_type,
const void *buf, size_t len, SSL *ssl, void *arg)
@ -41,11 +48,13 @@ _PySSL_msg_callback(int write_p, int version, int content_type,
case SSL3_RT_HANDSHAKE:
msg_type = (int)cbuf[0];
break;
#ifdef SSL3_RT_HEADER
case SSL3_RT_HEADER:
/* frame header encodes version in bytes 1..2 */
version = cbuf[1] << 8 | cbuf[2];
msg_type = (int)cbuf[0];
break;
#endif
#ifdef SSL3_RT_INNER_CONTENT_TYPE
case SSL3_RT_INNER_CONTENT_TYPE:
msg_type = (int)cbuf[0];

3
Tools/ssl/multissltests.py
View File

@ -51,10 +51,11 @@ OPENSSL_RECENT_VERSIONS = [
]
LIBRESSL_OLD_VERSIONS = [
"2.9.2",
]
LIBRESSL_RECENT_VERSIONS = [
"2.7.4",
"2.8.3",
]
# store files in ../multissl