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-rw-r--r--src/cryptography/hazmat/backends/openssl/backend.py18
1 files changed, 16 insertions, 2 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index af675116..7255b470 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -83,8 +83,14 @@ def _encode_asn1_str(backend, data, length):
Create an ASN1_OCTET_STRING from a Python byte string.
"""
s = backend._lib.ASN1_OCTET_STRING_new()
+ res = backend._lib.ASN1_OCTET_STRING_set(s, data, length)
+ assert res == 1
+ return s
+
+
+def _encode_asn1_str_gc(backend, data, length):
+ s = _encode_asn1_str(backend, data, length)
s = backend._ffi.gc(s, backend._lib.ASN1_OCTET_STRING_free)
- backend._lib.ASN1_OCTET_STRING_set(s, data, length)
return s
@@ -185,6 +191,14 @@ def _encode_subject_alt_name(backend, san):
name = _encode_name(backend, alt_name.value)
gn.type = backend._lib.GEN_DIRNAME
gn.d.directoryName = name
+ elif isinstance(alt_name, x509.IPAddress):
+ gn = backend._lib.GENERAL_NAME_new()
+ assert gn != backend._ffi.NULL
+ ipaddr = _encode_asn1_str(
+ backend, alt_name.value.packed, len(alt_name.value.packed)
+ )
+ gn.type = backend._lib.GEN_IPADD
+ gn.d.iPAddress = ipaddr
else:
raise NotImplementedError(
"Only DNSName and RegisteredID supported right now"
@@ -919,7 +933,7 @@ class Backend(object):
self._ffi.NULL,
obj,
1 if extension.critical else 0,
- _encode_asn1_str(self, pp[0], r),
+ _encode_asn1_str_gc(self, pp[0], r),
)
assert extension != self._ffi.NULL
res = self._lib.sk_X509_EXTENSION_push(extensions, extension)