diff options
Diffstat (limited to 'src/cryptography/hazmat/bindings/openssl/x509_vfy.py')
| -rw-r--r-- | src/cryptography/hazmat/bindings/openssl/x509_vfy.py | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/bindings/openssl/x509_vfy.py b/src/cryptography/hazmat/bindings/openssl/x509_vfy.py new file mode 100644 index 00000000..601926c9 --- /dev/null +++ b/src/cryptography/hazmat/bindings/openssl/x509_vfy.py @@ -0,0 +1,336 @@ +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from __future__ import absolute_import, division, print_function + +INCLUDES = """ +#include <openssl/x509_vfy.h> + +/* + * This is part of a work-around for the difficulty cffi has in dealing with + * `STACK_OF(foo)` as the name of a type. We invent a new, simpler name that + * will be an alias for this type and use the alias throughout. This works + * together with another opaque typedef for the same name in the TYPES section. + * Note that the result is an opaque type. + */ +typedef STACK_OF(ASN1_OBJECT) Cryptography_STACK_OF_ASN1_OBJECT; +""" + +TYPES = """ +static const long Cryptography_HAS_102_VERIFICATION_ERROR_CODES; +static const long Cryptography_HAS_102_VERIFICATION_PARAMS; +static const long Cryptography_HAS_X509_V_FLAG_TRUSTED_FIRST; +static const long Cryptography_HAS_X509_V_FLAG_PARTIAL_CHAIN; +static const long Cryptography_HAS_100_VERIFICATION_ERROR_CODES; +static const long Cryptography_HAS_100_VERIFICATION_PARAMS; +static const long Cryptography_HAS_X509_V_FLAG_CHECK_SS_SIGNATURE; + +typedef ... Cryptography_STACK_OF_ASN1_OBJECT; + +typedef ... X509_STORE; +typedef ... X509_STORE_CTX; +typedef ... X509_VERIFY_PARAM; + +/* While these are defined in the source as ints, they're tagged here + as longs, just in case they ever grow to large, such as what we saw + with OP_ALL. */ + +/* Verification error codes */ +static const int X509_V_OK; +static const int X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT; +static const int X509_V_ERR_UNABLE_TO_GET_CRL; +static const int X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE; +static const int X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE; +static const int X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY; +static const int X509_V_ERR_CERT_SIGNATURE_FAILURE; +static const int X509_V_ERR_CRL_SIGNATURE_FAILURE; +static const int X509_V_ERR_CERT_NOT_YET_VALID; +static const int X509_V_ERR_CERT_HAS_EXPIRED; +static const int X509_V_ERR_CRL_NOT_YET_VALID; +static const int X509_V_ERR_CRL_HAS_EXPIRED; +static const int X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD; +static const int X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD; +static const int X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD; +static const int X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD; +static const int X509_V_ERR_OUT_OF_MEM; +static const int X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT; +static const int X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN; +static const int X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY; +static const int X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE; +static const int X509_V_ERR_CERT_CHAIN_TOO_LONG; +static const int X509_V_ERR_CERT_REVOKED; +static const int X509_V_ERR_INVALID_CA; +static const int X509_V_ERR_PATH_LENGTH_EXCEEDED; +static const int X509_V_ERR_INVALID_PURPOSE; +static const int X509_V_ERR_CERT_UNTRUSTED; +static const int X509_V_ERR_CERT_REJECTED; +static const int X509_V_ERR_SUBJECT_ISSUER_MISMATCH; +static const int X509_V_ERR_AKID_SKID_MISMATCH; +static const int X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH; +static const int X509_V_ERR_KEYUSAGE_NO_CERTSIGN; +static const int X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER; +static const int X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION; +static const int X509_V_ERR_KEYUSAGE_NO_CRL_SIGN; +static const int X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION; +static const int X509_V_ERR_INVALID_NON_CA; +static const int X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED; +static const int X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE; +static const int X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED; +static const int X509_V_ERR_INVALID_EXTENSION; +static const int X509_V_ERR_INVALID_POLICY_EXTENSION; +static const int X509_V_ERR_NO_EXPLICIT_POLICY; +static const int X509_V_ERR_DIFFERENT_CRL_SCOPE; +static const int X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE; +static const int X509_V_ERR_UNNESTED_RESOURCE; +static const int X509_V_ERR_PERMITTED_VIOLATION; +static const int X509_V_ERR_EXCLUDED_VIOLATION; +static const int X509_V_ERR_SUBTREE_MINMAX; +static const int X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE; +static const int X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX; +static const int X509_V_ERR_UNSUPPORTED_NAME_SYNTAX; +static const int X509_V_ERR_CRL_PATH_VALIDATION_ERROR; +static const int X509_V_ERR_SUITE_B_INVALID_VERSION; +static const int X509_V_ERR_SUITE_B_INVALID_ALGORITHM; +static const int X509_V_ERR_SUITE_B_INVALID_CURVE; +static const int X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM; +static const int X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED; +static const int X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256; +static const int X509_V_ERR_HOSTNAME_MISMATCH; +static const int X509_V_ERR_EMAIL_MISMATCH; +static const int X509_V_ERR_IP_ADDRESS_MISMATCH; +static const int X509_V_ERR_APPLICATION_VERIFICATION; + +/* Verification parameters */ +static const long X509_V_FLAG_CB_ISSUER_CHECK; +static const long X509_V_FLAG_USE_CHECK_TIME; +static const long X509_V_FLAG_CRL_CHECK; +static const long X509_V_FLAG_CRL_CHECK_ALL; +static const long X509_V_FLAG_IGNORE_CRITICAL; +static const long X509_V_FLAG_X509_STRICT; +static const long X509_V_FLAG_ALLOW_PROXY_CERTS; +static const long X509_V_FLAG_POLICY_CHECK; +static const long X509_V_FLAG_EXPLICIT_POLICY; +static const long X509_V_FLAG_INHIBIT_ANY; +static const long X509_V_FLAG_INHIBIT_MAP; +static const long X509_V_FLAG_NOTIFY_POLICY; +static const long X509_V_FLAG_EXTENDED_CRL_SUPPORT; +static const long X509_V_FLAG_USE_DELTAS; +static const long X509_V_FLAG_CHECK_SS_SIGNATURE; +static const long X509_V_FLAG_TRUSTED_FIRST; +static const long X509_V_FLAG_SUITEB_128_LOS_ONLY; +static const long X509_V_FLAG_SUITEB_192_LOS; +static const long X509_V_FLAG_SUITEB_128_LOS; +static const long X509_V_FLAG_PARTIAL_CHAIN; +""" + +FUNCTIONS = """ +int X509_verify_cert(X509_STORE_CTX *); + +/* X509_STORE */ +X509_STORE *X509_STORE_new(void); +void X509_STORE_free(X509_STORE *); +int X509_STORE_add_cert(X509_STORE *, X509 *); + +/* X509_STORE_CTX */ +X509_STORE_CTX *X509_STORE_CTX_new(void); +void X509_STORE_CTX_cleanup(X509_STORE_CTX *); +void X509_STORE_CTX_free(X509_STORE_CTX *); +int X509_STORE_CTX_init(X509_STORE_CTX *, X509_STORE *, X509 *, + Cryptography_STACK_OF_X509 *); +void X509_STORE_CTX_trusted_stack(X509_STORE_CTX *, + Cryptography_STACK_OF_X509 *); +void X509_STORE_CTX_set_cert(X509_STORE_CTX *, X509 *); +void X509_STORE_CTX_set_chain(X509_STORE_CTX *,Cryptography_STACK_OF_X509 *); +X509_VERIFY_PARAM *X509_STORE_CTX_get0_param(X509_STORE_CTX *); +void X509_STORE_CTX_set0_param(X509_STORE_CTX *, X509_VERIFY_PARAM *); +int X509_STORE_CTX_set_default(X509_STORE_CTX *, const char *); +void X509_STORE_CTX_set_verify_cb(X509_STORE_CTX *, + int (*)(int, X509_STORE_CTX *)); +Cryptography_STACK_OF_X509 *X509_STORE_CTX_get_chain(X509_STORE_CTX *); +Cryptography_STACK_OF_X509 *X509_STORE_CTX_get1_chain(X509_STORE_CTX *); +int X509_STORE_CTX_get_error(X509_STORE_CTX *); +void X509_STORE_CTX_set_error(X509_STORE_CTX *, int); +int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *); +X509 *X509_STORE_CTX_get_current_cert(X509_STORE_CTX *); +int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *, int, void *); +void *X509_STORE_CTX_get_ex_data(X509_STORE_CTX *, int); + +/* X509_VERIFY_PARAM */ +X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void); +int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *, unsigned long); +int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *, unsigned long); +unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *); +int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *, int); +int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *, int); +void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *, time_t); +int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *, ASN1_OBJECT *); +int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *, + Cryptography_STACK_OF_ASN1_OBJECT *); +void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *, int); +int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *); +""" + +MACROS = """ +/* X509_STORE_CTX */ +void X509_STORE_CTX_set0_crls(X509_STORE_CTX *, + Cryptography_STACK_OF_X509_CRL *); + +/* X509_VERIFY_PARAM */ +int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *, const char *, + size_t); +void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *, unsigned int); +int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *, const char *, + size_t); +int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *, const unsigned char *, + size_t); +int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *, const char *); +""" + +CUSTOMIZATIONS = """ +/* OpenSSL 1.0.2+ verification error codes */ +#if OPENSSL_VERSION_NUMBER >= 0x10002000L +static const long Cryptography_HAS_102_VERIFICATION_ERROR_CODES = 1; +#else +static const long Cryptography_HAS_102_VERIFICATION_ERROR_CODES = 0; +static const long X509_V_ERR_SUITE_B_INVALID_VERSION = 0; +static const long X509_V_ERR_SUITE_B_INVALID_ALGORITHM = 0; +static const long X509_V_ERR_SUITE_B_INVALID_CURVE = 0; +static const long X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM = 0; +static const long X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED = 0; +static const long X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256 = 0; +static const long X509_V_ERR_HOSTNAME_MISMATCH = 0; +static const long X509_V_ERR_EMAIL_MISMATCH = 0; +static const long X509_V_ERR_IP_ADDRESS_MISMATCH = 0; +#endif + +/* OpenSSL 1.0.2+ verification parameters */ +#if OPENSSL_VERSION_NUMBER >= 0x10002000L +static const long Cryptography_HAS_102_VERIFICATION_PARAMS = 1; +#else +static const long Cryptography_HAS_102_VERIFICATION_PARAMS = 0; +/* X509_V_FLAG_TRUSTED_FIRST is also new in 1.0.2+, but it is added separately + below because it shows up in some earlier 3rd party OpenSSL packages. */ +static const long X509_V_FLAG_SUITEB_128_LOS_ONLY = 0; +static const long X509_V_FLAG_SUITEB_192_LOS = 0; +static const long X509_V_FLAG_SUITEB_128_LOS = 0; + +int (*X509_VERIFY_PARAM_set1_host)(X509_VERIFY_PARAM *, const char *, + size_t) = NULL; +int (*X509_VERIFY_PARAM_set1_email)(X509_VERIFY_PARAM *, const char *, + size_t) = NULL; +int (*X509_VERIFY_PARAM_set1_ip)(X509_VERIFY_PARAM *, const unsigned char *, + size_t) = NULL; +int (*X509_VERIFY_PARAM_set1_ip_asc)(X509_VERIFY_PARAM *, const char *) = NULL; +void (*X509_VERIFY_PARAM_set_hostflags)(X509_VERIFY_PARAM *, + unsigned int) = NULL; +#endif + +/* OpenSSL 1.0.2+ or Solaris's backport */ +#ifdef X509_V_FLAG_PARTIAL_CHAIN +static const long Cryptography_HAS_X509_V_FLAG_PARTIAL_CHAIN = 1; +#else +static const long Cryptography_HAS_X509_V_FLAG_PARTIAL_CHAIN = 0; +static const long X509_V_FLAG_PARTIAL_CHAIN = 0; +#endif + +/* OpenSSL 1.0.2+, *or* Fedora 20's flavor of OpenSSL 1.0.1e... */ +#ifdef X509_V_FLAG_TRUSTED_FIRST +static const long Cryptography_HAS_X509_V_FLAG_TRUSTED_FIRST = 1; +#else +static const long Cryptography_HAS_X509_V_FLAG_TRUSTED_FIRST = 0; +static const long X509_V_FLAG_TRUSTED_FIRST = 0; +#endif + +/* OpenSSL 1.0.0+ verification error codes */ +#if OPENSSL_VERSION_NUMBER >= 0x10000000L +static const long Cryptography_HAS_100_VERIFICATION_ERROR_CODES = 1; +#else +static const long Cryptography_HAS_100_VERIFICATION_ERROR_CODES = 0; +static const long X509_V_ERR_DIFFERENT_CRL_SCOPE = 0; +static const long X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE = 0; +static const long X509_V_ERR_PERMITTED_VIOLATION = 0; +static const long X509_V_ERR_EXCLUDED_VIOLATION = 0; +static const long X509_V_ERR_SUBTREE_MINMAX = 0; +static const long X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE = 0; +static const long X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX = 0; +static const long X509_V_ERR_UNSUPPORTED_NAME_SYNTAX = 0; +static const long X509_V_ERR_CRL_PATH_VALIDATION_ERROR = 0; +#endif + +/* OpenSSL 1.0.0+ verification parameters */ +#if OPENSSL_VERSION_NUMBER >= 0x10000000L +static const long Cryptography_HAS_100_VERIFICATION_PARAMS = 1; +#else +static const long Cryptography_HAS_100_VERIFICATION_PARAMS = 0; +static const long X509_V_FLAG_EXTENDED_CRL_SUPPORT = 0; +static const long X509_V_FLAG_USE_DELTAS = 0; +#endif + +/* OpenSSL 0.9.8recent+ */ +#ifdef X509_V_FLAG_CHECK_SS_SIGNATURE +static const long Cryptography_HAS_X509_V_FLAG_CHECK_SS_SIGNATURE = 1; +#else +static const long Cryptography_HAS_X509_V_FLAG_CHECK_SS_SIGNATURE = 0; +static const long X509_V_FLAG_CHECK_SS_SIGNATURE = 0; +#endif +""" + +CONDITIONAL_NAMES = { + "Cryptography_HAS_102_VERIFICATION_ERROR_CODES": [ + 'X509_V_ERR_SUITE_B_INVALID_VERSION', + 'X509_V_ERR_SUITE_B_INVALID_ALGORITHM', + 'X509_V_ERR_SUITE_B_INVALID_CURVE', + 'X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM', + 'X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED', + 'X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256', + 'X509_V_ERR_HOSTNAME_MISMATCH', + 'X509_V_ERR_EMAIL_MISMATCH', + 'X509_V_ERR_IP_ADDRESS_MISMATCH' + ], + "Cryptography_HAS_102_VERIFICATION_PARAMS": [ + "X509_V_FLAG_SUITEB_128_LOS_ONLY", + "X509_V_FLAG_SUITEB_192_LOS", + "X509_V_FLAG_SUITEB_128_LOS", + "X509_VERIFY_PARAM_set1_host", + "X509_VERIFY_PARAM_set1_email", + "X509_VERIFY_PARAM_set1_ip", + "X509_VERIFY_PARAM_set1_ip_asc", + "X509_VERIFY_PARAM_set_hostflags", + ], + "Cryptography_HAS_X509_V_FLAG_TRUSTED_FIRST": [ + "X509_V_FLAG_TRUSTED_FIRST", + ], + "Cryptography_HAS_X509_V_FLAG_PARTIAL_CHAIN": [ + "X509_V_FLAG_PARTIAL_CHAIN", + ], + "Cryptography_HAS_100_VERIFICATION_ERROR_CODES": [ + 'X509_V_ERR_DIFFERENT_CRL_SCOPE', + 'X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE', + 'X509_V_ERR_UNNESTED_RESOURCE', + 'X509_V_ERR_PERMITTED_VIOLATION', + 'X509_V_ERR_EXCLUDED_VIOLATION', + 'X509_V_ERR_SUBTREE_MINMAX', + 'X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE', + 'X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX', + 'X509_V_ERR_UNSUPPORTED_NAME_SYNTAX', + 'X509_V_ERR_CRL_PATH_VALIDATION_ERROR', + ], + "Cryptography_HAS_100_VERIFICATION_PARAMS": [ + "Cryptography_HAS_100_VERIFICATION_PARAMS", + "X509_V_FLAG_EXTENDED_CRL_SUPPORT", + "X509_V_FLAG_USE_DELTAS", + ], + "Cryptography_HAS_X509_V_FLAG_CHECK_SS_SIGNATURE": [ + "X509_V_FLAG_CHECK_SS_SIGNATURE", + ] +} |