Issue #16692: The ssl module now supports TLS 1.1 and TLS 1.2. Initial patch by Michele Orrù.
This commit is contained in:
Antoine Pitrou
parent
f2c64ed9eb
commit
2463e5fee4
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@ -26,7 +26,8 @@ probably additional platforms, as long as OpenSSL is installed on that platform.
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Some behavior may be platform dependent, since calls are made to the
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operating system socket APIs. The installed version of OpenSSL may also
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cause variations in behavior.
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cause variations in behavior. For example, TLSv1.1 and TLSv1.2 come with
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openssl version 1.0.1.
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This section documents the objects and functions in the ``ssl`` module; for more
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general information about TLS, SSL, and certificates, the reader is referred to
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@ -177,14 +178,16 @@ instead.
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.. table::
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======================== ========= ========= ========== =========
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*client* / **server** **SSLv2** **SSLv3** **SSLv23** **TLSv1**
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------------------------ --------- --------- ---------- ---------
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*SSLv2* yes no yes no
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*SSLv3* no yes yes no
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*SSLv23* yes no yes no
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*TLSv1* no no yes yes
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======================== ========= ========= ========== =========
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======================== ========= ========= ========== ========= =========== ===========
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*client* / **server** **SSLv2** **SSLv3** **SSLv23** **TLSv1** **TLSv1.1** **TLSv1.2**
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------------------------ --------- --------- ---------- --------- ----------- -----------
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*SSLv2* yes no yes no no no
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*SSLv3* no yes yes no no no
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*SSLv23* yes no yes no no no
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*TLSv1* no no yes yes no no
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*TLSv1.1* no no yes no yes no
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*TLSv1.2* no no yes no no yes
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======================== ========= ========= ========== ========= =========== ===========
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.. note::
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@ -401,9 +404,25 @@ Constants
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.. data:: PROTOCOL_TLSv1
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Selects TLS version 1 as the channel encryption protocol. This is the most
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Selects TLS version 1.0 as the channel encryption protocol.
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.. data:: PROTOCOL_TLSv1_1
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Selects TLS version 1.1 as the channel encryption protocol.
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Available only with openssl version 1.0.1+.
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.. versionadded:: 3.4
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.. data:: PROTOCOL_TLSv1_2
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Selects TLS version 1.2 as the channel encryption protocol. This is the most
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modern version, and probably the best choice for maximum protection, if both
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sides can speak it.
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Available only with openssl version 1.0.1+.
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.. versionadded:: 3.4
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.. data:: OP_ALL
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@ -437,6 +456,22 @@ Constants
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.. versionadded:: 3.2
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.. data:: OP_NO_TLSv1_1
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Prevents a TLSv1.1 connection. This option is only applicable in conjunction
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with :const:`PROTOCOL_SSLv23`. It prevents the peers from choosing TLSv1.1 as
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the protocol version. Available only with openssl version 1.0.1+.
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.. versionadded:: 3.4
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.. data:: OP_NO_TLSv1_2
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Prevents a TLSv1.2 connection. This option is only applicable in conjunction
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with :const:`PROTOCOL_SSLv23`. It prevents the peers from choosing TLSv1.2 as
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the protocol version. Available only with openssl version 1.0.1+.
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.. versionadded:: 3.4
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.. data:: OP_CIPHER_SERVER_PREFERENCE
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Use the server's cipher ordering preference, rather than the client's.
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@ -103,6 +103,7 @@ Implementation improvements:
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Significantly Improved Library Modules:
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* SHA-3 (Keccak) support for :mod:`hashlib`.
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* TLSv1.1 and TLSv1.2 support for :mod:`ssl`.
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Security improvements:
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13
Lib/ssl.py
13
Lib/ssl.py
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@ -52,6 +52,8 @@ PROTOCOL_SSLv2
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PROTOCOL_SSLv3
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PROTOCOL_SSLv23
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PROTOCOL_TLSv1
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PROTOCOL_TLSv1_1
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PROTOCOL_TLSv1_2
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The following constants identify various SSL alert message descriptions as per
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http://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-6
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@ -110,8 +112,7 @@ _import_symbols('SSL_ERROR_')
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from _ssl import HAS_SNI, HAS_ECDH, HAS_NPN
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from _ssl import (PROTOCOL_SSLv3, PROTOCOL_SSLv23,
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PROTOCOL_TLSv1)
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from _ssl import PROTOCOL_SSLv3, PROTOCOL_SSLv23, PROTOCOL_TLSv1
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from _ssl import _OPENSSL_API_VERSION
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@ -128,6 +129,14 @@ except ImportError:
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else:
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_PROTOCOL_NAMES[PROTOCOL_SSLv2] = "SSLv2"
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try:
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from _ssl import PROTOCOL_TLSv1_1, PROTOCOL_TLSv1_2
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except ImportError:
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pass
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else:
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_PROTOCOL_NAMES[PROTOCOL_TLSv1_1] = "TLSv1.1"
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_PROTOCOL_NAMES[PROTOCOL_TLSv1_2] = "TLSv1.2"
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from socket import getnameinfo as _getnameinfo
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from socket import socket, AF_INET, SOCK_STREAM, create_connection
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import base64 # for DER-to-PEM translation
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@ -20,13 +20,7 @@ import functools
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ssl = support.import_module("ssl")
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PROTOCOLS = [
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ssl.PROTOCOL_SSLv3,
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ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1
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]
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if hasattr(ssl, 'PROTOCOL_SSLv2'):
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PROTOCOLS.append(ssl.PROTOCOL_SSLv2)
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PROTOCOLS = sorted(ssl._PROTOCOL_NAMES)
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HOST = support.HOST
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data_file = lambda name: os.path.join(os.path.dirname(__file__), name)
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@ -101,10 +95,6 @@ needs_sni = unittest.skipUnless(ssl.HAS_SNI, "SNI support needed for this test")
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class BasicSocketTests(unittest.TestCase):
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def test_constants(self):
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#ssl.PROTOCOL_SSLv2
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ssl.PROTOCOL_SSLv23
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ssl.PROTOCOL_SSLv3
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ssl.PROTOCOL_TLSv1
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ssl.CERT_NONE
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ssl.CERT_OPTIONAL
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ssl.CERT_REQUIRED
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@ -396,11 +386,8 @@ class ContextTests(unittest.TestCase):
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@skip_if_broken_ubuntu_ssl
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def test_constructor(self):
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if hasattr(ssl, 'PROTOCOL_SSLv2'):
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ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv2)
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ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
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ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv3)
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ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
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for protocol in PROTOCOLS:
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ssl.SSLContext(protocol)
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self.assertRaises(TypeError, ssl.SSLContext)
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self.assertRaises(ValueError, ssl.SSLContext, -1)
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self.assertRaises(ValueError, ssl.SSLContext, 42)
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@ -1360,12 +1347,15 @@ else:
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client_context.options = ssl.OP_ALL | client_options
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server_context = ssl.SSLContext(server_protocol)
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server_context.options = ssl.OP_ALL | server_options
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# NOTE: we must enable "ALL" ciphers on the client, otherwise an
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# SSLv23 client will send an SSLv3 hello (rather than SSLv2)
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# starting from OpenSSL 1.0.0 (see issue #8322).
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if client_context.protocol == ssl.PROTOCOL_SSLv23:
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client_context.set_ciphers("ALL")
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for ctx in (client_context, server_context):
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ctx.verify_mode = certsreqs
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# NOTE: we must enable "ALL" ciphers, otherwise an SSLv23 client
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# will send an SSLv3 hello (rather than SSLv2) starting from
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# OpenSSL 1.0.0 (see issue #8322).
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ctx.set_ciphers("ALL")
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ctx.load_cert_chain(CERTFILE)
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ctx.load_verify_locations(CERTFILE)
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try:
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@ -1581,6 +1571,49 @@ else:
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try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv23, False,
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client_options=ssl.OP_NO_TLSv1)
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@skip_if_broken_ubuntu_ssl
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@unittest.skipUnless(hasattr(ssl, "PROTOCOL_TLSv1_1"),
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"TLS version 1.1 not supported.")
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def test_protocol_tlsv1_1(self):
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"""Connecting to a TLSv1.1 server with various client options.
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Testing against older TLS versions."""
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if support.verbose:
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sys.stdout.write("\n")
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1_1, True)
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if hasattr(ssl, 'PROTOCOL_SSLv2'):
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_SSLv2, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_SSLv3, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_SSLv23, False,
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client_options=ssl.OP_NO_TLSv1_1)
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try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1_1, True)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1_1, False)
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@skip_if_broken_ubuntu_ssl
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@unittest.skipUnless(hasattr(ssl, "PROTOCOL_TLSv1_2"),
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"TLS version 1.2 not supported.")
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def test_protocol_tlsv1_2(self):
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"""Connecting to a TLSv1.2 server with various client options.
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Testing against older TLS versions."""
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if support.verbose:
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sys.stdout.write("\n")
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1_2, True,
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server_options=ssl.OP_NO_SSLv3|ssl.OP_NO_SSLv2,
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client_options=ssl.OP_NO_SSLv3|ssl.OP_NO_SSLv2,)
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if hasattr(ssl, 'PROTOCOL_SSLv2'):
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_SSLv2, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_SSLv3, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_SSLv23, False,
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client_options=ssl.OP_NO_TLSv1_2)
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try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1_2, True)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1_2, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_2, ssl.PROTOCOL_TLSv1_1, False)
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try_protocol_combo(ssl.PROTOCOL_TLSv1_1, ssl.PROTOCOL_TLSv1_2, False)
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def test_starttls(self):
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"""Switching from clear text to encrypted and back again."""
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msgs = (b"msg 1", b"MSG 2", b"STARTTLS", b"MSG 3", b"msg 4", b"ENDTLS", b"msg 5", b"msg 6")
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@ -297,6 +297,9 @@ Core and Builtins
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Library
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-------
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- Issue #16692: The ssl module now supports TLS 1.1 and TLS 1.2. Initial
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patch by Michele Orrù.
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- Issue #17025: multiprocessing: Reduce Queue and SimpleQueue contention.
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- Issue #17536: Add to webbrowser's browser list: www-browser, x-www-browser,
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@ -1005,6 +1008,8 @@ _ Issue #17385: Fix quadratic behavior in threading.Condition. The FIFO
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- ctypes.call_commethod was removed, since its only usage was in the defunct
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samples directory.
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- Issue #16692: Added TLSv1.1 and TLSv1.2 support for the ssl modules.
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Extension Modules
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-----------------
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124
Modules/_ssl.c
124
Modules/_ssl.c
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@ -40,6 +40,61 @@
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#endif
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/* Include symbols from _socket module */
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#include "socketmodule.h"
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static PySocketModule_APIObject PySocketModule;
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#if defined(HAVE_POLL_H)
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#include <poll.h>
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#elif defined(HAVE_SYS_POLL_H)
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#include <sys/poll.h>
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#endif
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/* Include OpenSSL header files */
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#include "openssl/rsa.h"
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#include "openssl/crypto.h"
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#include "openssl/x509.h"
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#include "openssl/x509v3.h"
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#include "openssl/pem.h"
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#include "openssl/ssl.h"
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#include "openssl/err.h"
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#include "openssl/rand.h"
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/* SSL error object */
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static PyObject *PySSLErrorObject;
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static PyObject *PySSLZeroReturnErrorObject;
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static PyObject *PySSLWantReadErrorObject;
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static PyObject *PySSLWantWriteErrorObject;
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static PyObject *PySSLSyscallErrorObject;
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static PyObject *PySSLEOFErrorObject;
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/* Error mappings */
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static PyObject *err_codes_to_names;
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static PyObject *err_names_to_codes;
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static PyObject *lib_codes_to_names;
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struct py_ssl_error_code {
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const char *mnemonic;
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int library, reason;
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};
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struct py_ssl_library_code {
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const char *library;
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int code;
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};
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/* Include generated data (error codes) */
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#include "_ssl_data.h"
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/* Openssl comes with TLSv1.1 and TLSv1.2 between 1.0.0h and 1.0.1
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http://www.openssl.org/news/changelog.html
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*/
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#if OPENSSL_VERSION_NUMBER >= 0x10001000L
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# define HAVE_TLSv1_2 1
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#else
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# define HAVE_TLSv1_2 0
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#endif
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enum py_ssl_error {
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/* these mirror ssl.h */
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PY_SSL_ERROR_NONE,
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@ -73,55 +128,14 @@ enum py_ssl_version {
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#endif
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PY_SSL_VERSION_SSL3=1,
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PY_SSL_VERSION_SSL23,
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#if HAVE_TLSv1_2
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PY_SSL_VERSION_TLS1,
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PY_SSL_VERSION_TLS1_1,
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PY_SSL_VERSION_TLS1_2
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#else
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PY_SSL_VERSION_TLS1
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};
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struct py_ssl_error_code {
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const char *mnemonic;
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int library, reason;
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};
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struct py_ssl_library_code {
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const char *library;
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int code;
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};
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/* Include symbols from _socket module */
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#include "socketmodule.h"
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static PySocketModule_APIObject PySocketModule;
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#if defined(HAVE_POLL_H)
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#include <poll.h>
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#elif defined(HAVE_SYS_POLL_H)
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#include <sys/poll.h>
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#endif
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/* Include OpenSSL header files */
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#include "openssl/rsa.h"
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#include "openssl/crypto.h"
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#include "openssl/x509.h"
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#include "openssl/x509v3.h"
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#include "openssl/pem.h"
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#include "openssl/ssl.h"
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#include "openssl/err.h"
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#include "openssl/rand.h"
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/* Include generated data (error codes) */
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#include "_ssl_data.h"
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/* SSL error object */
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static PyObject *PySSLErrorObject;
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static PyObject *PySSLZeroReturnErrorObject;
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static PyObject *PySSLWantReadErrorObject;
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static PyObject *PySSLWantWriteErrorObject;
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static PyObject *PySSLSyscallErrorObject;
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static PyObject *PySSLEOFErrorObject;
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/* Error mappings */
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static PyObject *err_codes_to_names;
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static PyObject *err_names_to_codes;
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static PyObject *lib_codes_to_names;
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};
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#ifdef WITH_THREAD
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@ -1732,6 +1746,12 @@ context_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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PySSL_BEGIN_ALLOW_THREADS
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if (proto_version == PY_SSL_VERSION_TLS1)
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ctx = SSL_CTX_new(TLSv1_method());
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#if HAVE_TLSv1_2
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else if (proto_version == PY_SSL_VERSION_TLS1_1)
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ctx = SSL_CTX_new(TLSv1_1_method());
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else if (proto_version == PY_SSL_VERSION_TLS1_2)
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ctx = SSL_CTX_new(TLSv1_2_method());
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#endif
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else if (proto_version == PY_SSL_VERSION_SSL3)
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ctx = SSL_CTX_new(SSLv3_method());
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#ifndef OPENSSL_NO_SSL2
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@ -3004,6 +3024,12 @@ PyInit__ssl(void)
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PY_SSL_VERSION_SSL23);
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PyModule_AddIntConstant(m, "PROTOCOL_TLSv1",
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PY_SSL_VERSION_TLS1);
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#if HAVE_TLSv1_2
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PyModule_AddIntConstant(m, "PROTOCOL_TLSv1_1",
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PY_SSL_VERSION_TLS1_1);
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PyModule_AddIntConstant(m, "PROTOCOL_TLSv1_2",
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PY_SSL_VERSION_TLS1_2);
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#endif
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/* protocol options */
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PyModule_AddIntConstant(m, "OP_ALL",
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@ -3011,6 +3037,10 @@ PyInit__ssl(void)
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PyModule_AddIntConstant(m, "OP_NO_SSLv2", SSL_OP_NO_SSLv2);
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PyModule_AddIntConstant(m, "OP_NO_SSLv3", SSL_OP_NO_SSLv3);
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PyModule_AddIntConstant(m, "OP_NO_TLSv1", SSL_OP_NO_TLSv1);
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#if HAVE_TLSv1_2
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PyModule_AddIntConstant(m, "OP_NO_TLSv1_1", SSL_OP_NO_TLSv1_1);
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PyModule_AddIntConstant(m, "OP_NO_TLSv1_2", SSL_OP_NO_TLSv1_2);
|
||||
#endif
|
||||
PyModule_AddIntConstant(m, "OP_CIPHER_SERVER_PREFERENCE",
|
||||
SSL_OP_CIPHER_SERVER_PREFERENCE);
|
||||
PyModule_AddIntConstant(m, "OP_SINGLE_DH_USE", SSL_OP_SINGLE_DH_USE);
|
||||
|
|
|
|||
4
setup.py
4
setup.py
|
|
@ -786,10 +786,10 @@ class PyBuildExt(build_ext):
|
|||
for line in incfile:
|
||||
m = openssl_ver_re.match(line)
|
||||
if m:
|
||||
openssl_ver = eval(m.group(1))
|
||||
openssl_ver = int(m.group(1), 16)
|
||||
break
|
||||
except IOError as msg:
|
||||
print("IOError while reading opensshv.h:", msg)
|
||||
pass
|
||||
|
||||
#print('openssl_ver = 0x%08x' % openssl_ver)
|
||||
min_openssl_ver = 0x00907000
|
||||
|
|
|
|||
Loading…
Reference in New Issue