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Merge pull request #4 from mcfreis/master 

Workaround for Windows concerning the MTU size
incoming
Ray Brown 2017-04-02 19:22:50 -07:00 committed by GitHub
parent 129fd349df 8716df8ead
commit f20055796c
3 changed files with 16 additions and 6 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2017-03-28 Björn Freise <mcfreis@gmx.net>
Workaround for Windows concerning the MTU size
* dtls/sslconnection.py: Hardcoded setting of the MTU size only for Windows and in case it is not already configured
* dtls/test/unit_wrapper.py: No user config of the MTU size; using the hardcoded one from SSLConnection
2017-03-28 Björn Freise <mcfreis@gmx.net>
Minor fixes and "hopefully" compatible to Ubuntu 16.04

5
dtls/sslconnection.py
View File

@ -40,6 +40,7 @@ library's ssl module, since its values can be passed to this module.
CERT_REQUIRED
"""
import sys
import errno
import socket
import hmac
@ -560,9 +561,11 @@ class SSLConnection(object):
if self._user_config_ssl:
self._user_config_ssl(self._intf_ssl)
else:
if sys.platform.startswith('win') and not (SSL_get_options(self._ssl.value) & SSL_OP_NO_QUERY_MTU):
SSL_set_options(self._ssl.value, SSL_OP_NO_QUERY_MTU)
DTLS_set_link_mtu(self._ssl.value, 1500)
SSL_set_bio(self._ssl.value, self._rbio.value, self._wbio.value)
self._rbio.disown()
self._wbio.disown()

10
dtls/test/unit_wrapper.py
View File

@ -378,7 +378,7 @@ def params_test(start_server, certfile, protocol, certreqs, cacertsfile,
client_certfile=None, client_protocol=None, client_certreqs=None, client_cacertsfile=None,
ciphers=None, curves=None, sigalgs=None,
client_ciphers=None, client_curves=None, client_sigalgs=None,
mtu=1500, server_key_exchange_curve=None, server_cert_options=None,
mtu=None, server_key_exchange_curve=None, server_cert_options=None,
indata="FOO\n", chatty=False, connectionchatty=False):
"""
Launch a server, connect a client to it and try various reads
@ -508,7 +508,7 @@ class WrapperTests(unittest.TestCase):
ciphers=None,
curves=None,
sigalgs=None,
mtu=1500,
mtu=None,
server_key_exchange_curve=None,
server_cert_options=step,
chatty=chatty)
@ -526,7 +526,7 @@ class WrapperTests(unittest.TestCase):
ciphers=None,
curves=None,
sigalgs=None,
user_mtu=1500)
user_mtu=None)
s.connect((HOST, server.port))
if connectionchatty:
sys.stdout.write(" client: sending %s...\n" % (repr(indata)))
@ -595,7 +595,7 @@ class WrapperTests(unittest.TestCase):
ciphers=None,
curves=None,
sigalgs=None,
mtu=1500,
mtu=None,
server_key_exchange_curve=server_curve,
server_cert_options=None,
chatty=chatty)
@ -613,7 +613,7 @@ class WrapperTests(unittest.TestCase):
ciphers=None,
curves=client_curve,
sigalgs=None,
user_mtu=1500)
user_mtu=None)
s.connect((HOST, server.port))
if connectionchatty:
sys.stdout.write(" client: sending %s...\n" % (repr(indata)))