diff options
Diffstat (limited to 'src/cryptography/hazmat/bindings/openssl/ssl.py')
| -rw-r--r-- | src/cryptography/hazmat/bindings/openssl/ssl.py | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/bindings/openssl/ssl.py b/src/cryptography/hazmat/bindings/openssl/ssl.py new file mode 100644 index 00000000..7d805e78 --- /dev/null +++ b/src/cryptography/hazmat/bindings/openssl/ssl.py @@ -0,0 +1,620 @@ +# 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/ssl.h> + +typedef STACK_OF(SSL_CIPHER) Cryptography_STACK_OF_SSL_CIPHER; +""" + +TYPES = """ +/* + * Internally invented symbols to tell which versions of SSL/TLS are supported. +*/ +static const long Cryptography_HAS_SSL2; +static const long Cryptography_HAS_TLSv1_1; +static const long Cryptography_HAS_TLSv1_2; +static const long Cryptography_HAS_SECURE_RENEGOTIATION; + +/* Internally invented symbol to tell us if SNI is supported */ +static const long Cryptography_HAS_TLSEXT_HOSTNAME; + +/* Internally invented symbol to tell us if SSL_MODE_RELEASE_BUFFERS is + * supported + */ +static const long Cryptography_HAS_RELEASE_BUFFERS; + +/* Internally invented symbol to tell us if SSL_OP_NO_COMPRESSION is + * supported + */ +static const long Cryptography_HAS_OP_NO_COMPRESSION; + +static const long Cryptography_HAS_SSL_OP_MSIE_SSLV2_RSA_PADDING; +static const long Cryptography_HAS_SSL_SET_SSL_CTX; +static const long Cryptography_HAS_SSL_OP_NO_TICKET; +static const long Cryptography_HAS_NETBSD_D1_METH; +static const long Cryptography_HAS_NEXTPROTONEG; +static const long Cryptography_HAS_ALPN; + +static const long SSL_FILETYPE_PEM; +static const long SSL_FILETYPE_ASN1; +static const long SSL_ERROR_NONE; +static const long SSL_ERROR_ZERO_RETURN; +static const long SSL_ERROR_WANT_READ; +static const long SSL_ERROR_WANT_WRITE; +static const long SSL_ERROR_WANT_X509_LOOKUP; +static const long SSL_ERROR_SYSCALL; +static const long SSL_ERROR_SSL; +static const long SSL_SENT_SHUTDOWN; +static const long SSL_RECEIVED_SHUTDOWN; +static const long SSL_OP_NO_SSLv2; +static const long SSL_OP_NO_SSLv3; +static const long SSL_OP_NO_TLSv1; +static const long SSL_OP_NO_TLSv1_1; +static const long SSL_OP_NO_TLSv1_2; +static const long SSL_OP_NO_COMPRESSION; +static const long SSL_OP_SINGLE_DH_USE; +static const long SSL_OP_EPHEMERAL_RSA; +static const long SSL_OP_MICROSOFT_SESS_ID_BUG; +static const long SSL_OP_NETSCAPE_CHALLENGE_BUG; +static const long SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG; +static const long SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG; +static const long SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER; +static const long SSL_OP_MSIE_SSLV2_RSA_PADDING; +static const long SSL_OP_SSLEAY_080_CLIENT_DH_BUG; +static const long SSL_OP_TLS_D5_BUG; +static const long SSL_OP_TLS_BLOCK_PADDING_BUG; +static const long SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS; +static const long SSL_OP_CIPHER_SERVER_PREFERENCE; +static const long SSL_OP_TLS_ROLLBACK_BUG; +static const long SSL_OP_PKCS1_CHECK_1; +static const long SSL_OP_PKCS1_CHECK_2; +static const long SSL_OP_NETSCAPE_CA_DN_BUG; +static const long SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG; +static const long SSL_OP_NO_QUERY_MTU; +static const long SSL_OP_COOKIE_EXCHANGE; +static const long SSL_OP_NO_TICKET; +static const long SSL_OP_ALL; +static const long SSL_OP_SINGLE_ECDH_USE; +static const long SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; +static const long SSL_OP_LEGACY_SERVER_CONNECT; +static const long SSL_VERIFY_PEER; +static const long SSL_VERIFY_FAIL_IF_NO_PEER_CERT; +static const long SSL_VERIFY_CLIENT_ONCE; +static const long SSL_VERIFY_NONE; +static const long SSL_SESS_CACHE_OFF; +static const long SSL_SESS_CACHE_CLIENT; +static const long SSL_SESS_CACHE_SERVER; +static const long SSL_SESS_CACHE_BOTH; +static const long SSL_SESS_CACHE_NO_AUTO_CLEAR; +static const long SSL_SESS_CACHE_NO_INTERNAL_LOOKUP; +static const long SSL_SESS_CACHE_NO_INTERNAL_STORE; +static const long SSL_SESS_CACHE_NO_INTERNAL; +static const long SSL_ST_CONNECT; +static const long SSL_ST_ACCEPT; +static const long SSL_ST_MASK; +static const long SSL_ST_INIT; +static const long SSL_ST_BEFORE; +static const long SSL_ST_OK; +static const long SSL_ST_RENEGOTIATE; +static const long SSL_CB_LOOP; +static const long SSL_CB_EXIT; +static const long SSL_CB_READ; +static const long SSL_CB_WRITE; +static const long SSL_CB_ALERT; +static const long SSL_CB_READ_ALERT; +static const long SSL_CB_WRITE_ALERT; +static const long SSL_CB_ACCEPT_LOOP; +static const long SSL_CB_ACCEPT_EXIT; +static const long SSL_CB_CONNECT_LOOP; +static const long SSL_CB_CONNECT_EXIT; +static const long SSL_CB_HANDSHAKE_START; +static const long SSL_CB_HANDSHAKE_DONE; +static const long SSL_MODE_RELEASE_BUFFERS; +static const long SSL_MODE_ENABLE_PARTIAL_WRITE; +static const long SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER; +static const long SSL_MODE_AUTO_RETRY; +static const long SSL3_RANDOM_SIZE; +typedef ... SSL_METHOD; +typedef struct ssl_st { + int version; + int type; + ...; +} SSL_CTX; + +typedef struct { + int master_key_length; + unsigned char master_key[...]; + ...; +} SSL_SESSION; + +typedef struct { + unsigned char server_random[...]; + unsigned char client_random[...]; + ...; +} SSL3_STATE; + +typedef struct { + SSL3_STATE *s3; + SSL_SESSION *session; + int type; + ...; +} SSL; + +static const long TLSEXT_NAMETYPE_host_name; + +typedef ... SSL_CIPHER; +typedef ... Cryptography_STACK_OF_SSL_CIPHER; +typedef ... COMP_METHOD; +""" + +FUNCTIONS = """ +void SSL_load_error_strings(void); +int SSL_library_init(void); + +/* SSL */ +const char *SSL_state_string_long(const SSL *); +SSL_SESSION *SSL_get1_session(SSL *); +int SSL_set_session(SSL *, SSL_SESSION *); +int SSL_get_verify_mode(const SSL *); +void SSL_set_verify_depth(SSL *, int); +int SSL_get_verify_depth(const SSL *); +int (*SSL_get_verify_callback(const SSL *))(int, X509_STORE_CTX *); +void SSL_set_info_callback(SSL *ssl, void (*)(const SSL *, int, int)); +void (*SSL_get_info_callback(const SSL *))(const SSL *, int, int); +SSL *SSL_new(SSL_CTX *); +void SSL_free(SSL *); +int SSL_set_fd(SSL *, int); +void SSL_set_bio(SSL *, BIO *, BIO *); +void SSL_set_connect_state(SSL *); +void SSL_set_accept_state(SSL *); +void SSL_set_shutdown(SSL *, int); +int SSL_get_shutdown(const SSL *); +int SSL_pending(const SSL *); +int SSL_write(SSL *, const void *, int); +int SSL_read(SSL *, void *, int); +X509 *SSL_get_peer_certificate(const SSL *); +int SSL_get_ex_data_X509_STORE_CTX_idx(void); + +Cryptography_STACK_OF_X509 *SSL_get_peer_cert_chain(const SSL *); +Cryptography_STACK_OF_X509_NAME *SSL_get_client_CA_list(const SSL *); + +int SSL_get_error(const SSL *, int); +int SSL_do_handshake(SSL *); +int SSL_shutdown(SSL *); +const char *SSL_get_cipher_list(const SSL *, int); +Cryptography_STACK_OF_SSL_CIPHER *SSL_get_ciphers(const SSL *); + +const COMP_METHOD *SSL_get_current_compression(SSL *); +const COMP_METHOD *SSL_get_current_expansion(SSL *); +const char *SSL_COMP_get_name(const COMP_METHOD *); + +/* context */ +void SSL_CTX_free(SSL_CTX *); +long SSL_CTX_set_timeout(SSL_CTX *, long); +int SSL_CTX_set_default_verify_paths(SSL_CTX *); +void SSL_CTX_set_verify(SSL_CTX *, int, int (*)(int, X509_STORE_CTX *)); +void SSL_CTX_set_verify_depth(SSL_CTX *, int); +int (*SSL_CTX_get_verify_callback(const SSL_CTX *))(int, X509_STORE_CTX *); +int SSL_CTX_get_verify_mode(const SSL_CTX *); +int SSL_CTX_get_verify_depth(const SSL_CTX *); +int SSL_CTX_set_cipher_list(SSL_CTX *, const char *); +int SSL_CTX_load_verify_locations(SSL_CTX *, const char *, const char *); +void SSL_CTX_set_default_passwd_cb(SSL_CTX *, pem_password_cb *); +void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *, void *); +int SSL_CTX_use_certificate(SSL_CTX *, X509 *); +int SSL_CTX_use_certificate_file(SSL_CTX *, const char *, int); +int SSL_CTX_use_certificate_chain_file(SSL_CTX *, const char *); +int SSL_CTX_use_PrivateKey(SSL_CTX *, EVP_PKEY *); +int SSL_CTX_use_PrivateKey_file(SSL_CTX *, const char *, int); +void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *); +X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *); +int SSL_CTX_add_client_CA(SSL_CTX *, X509 *); + +void SSL_CTX_set_client_CA_list(SSL_CTX *, Cryptography_STACK_OF_X509_NAME *); + +/* SSL_SESSION */ +void SSL_SESSION_free(SSL_SESSION *); + +/* Information about actually used cipher */ +const char *SSL_CIPHER_get_name(const SSL_CIPHER *); +int SSL_CIPHER_get_bits(const SSL_CIPHER *, int *); +char *SSL_CIPHER_get_version(const SSL_CIPHER *); + +size_t SSL_get_finished(const SSL *, void *, size_t); +size_t SSL_get_peer_finished(const SSL *, void *, size_t); +""" + +MACROS = """ +unsigned long SSL_set_mode(SSL *, unsigned long); +unsigned long SSL_get_mode(SSL *); + +unsigned long SSL_set_options(SSL *, unsigned long); +unsigned long SSL_get_options(SSL *); + +int SSL_want_read(const SSL *); +int SSL_want_write(const SSL *); + +long SSL_total_renegotiations(SSL *); +long SSL_get_secure_renegotiation_support(SSL *); + +/* Defined as unsigned long because SSL_OP_ALL is greater than signed 32-bit + and Windows defines long as 32-bit. */ +unsigned long SSL_CTX_set_options(SSL_CTX *, unsigned long); +unsigned long SSL_CTX_get_options(SSL_CTX *); +unsigned long SSL_CTX_set_mode(SSL_CTX *, unsigned long); +unsigned long SSL_CTX_get_mode(SSL_CTX *); +unsigned long SSL_CTX_set_session_cache_mode(SSL_CTX *, unsigned long); +unsigned long SSL_CTX_get_session_cache_mode(SSL_CTX *); +unsigned long SSL_CTX_set_tmp_dh(SSL_CTX *, DH *); +unsigned long SSL_CTX_set_tmp_ecdh(SSL_CTX *, EC_KEY *); +unsigned long SSL_CTX_add_extra_chain_cert(SSL_CTX *, X509 *); + +/*- These aren't macros these functions are all const X on openssl > 1.0.x -*/ + +/* methods */ + +/* SSLv2 support is compiled out of some versions of OpenSSL. These will + * get special support when we generate the bindings so that if they are + * available they will be wrapped, but if they are not they won't cause + * problems (like link errors). + */ +const SSL_METHOD *SSLv2_method(void); +const SSL_METHOD *SSLv2_server_method(void); +const SSL_METHOD *SSLv2_client_method(void); + +/* + * TLSv1_1 and TLSv1_2 are recent additions. Only sufficiently new versions of + * OpenSSL support them. + */ +const SSL_METHOD *TLSv1_1_method(void); +const SSL_METHOD *TLSv1_1_server_method(void); +const SSL_METHOD *TLSv1_1_client_method(void); + +const SSL_METHOD *TLSv1_2_method(void); +const SSL_METHOD *TLSv1_2_server_method(void); +const SSL_METHOD *TLSv1_2_client_method(void); + +const SSL_METHOD *SSLv3_method(void); +const SSL_METHOD *SSLv3_server_method(void); +const SSL_METHOD *SSLv3_client_method(void); + +const SSL_METHOD *TLSv1_method(void); +const SSL_METHOD *TLSv1_server_method(void); +const SSL_METHOD *TLSv1_client_method(void); + +const SSL_METHOD *DTLSv1_method(void); +const SSL_METHOD *DTLSv1_server_method(void); +const SSL_METHOD *DTLSv1_client_method(void); + +const SSL_METHOD *SSLv23_method(void); +const SSL_METHOD *SSLv23_server_method(void); +const SSL_METHOD *SSLv23_client_method(void); + +/*- These aren't macros these arguments are all const X on openssl > 1.0.x -*/ +SSL_CTX *SSL_CTX_new(SSL_METHOD *); +long SSL_CTX_get_timeout(const SSL_CTX *); + +const SSL_CIPHER *SSL_get_current_cipher(const SSL *); + +/* SNI APIs were introduced in OpenSSL 1.0.0. To continue to support + * earlier versions some special handling of these is necessary. + */ +const char *SSL_get_servername(const SSL *, const int); +void SSL_set_tlsext_host_name(SSL *, char *); +void SSL_CTX_set_tlsext_servername_callback( + SSL_CTX *, + int (*)(const SSL *, int *, void *)); + +long SSL_session_reused(SSL *); + +/* The following were macros in 0.9.8e. Once we drop support for RHEL/CentOS 5 + we should move these back to FUNCTIONS. */ +void SSL_CTX_set_info_callback(SSL_CTX *, void (*)(const SSL *, int, int)); +void (*SSL_CTX_get_info_callback(SSL_CTX *))(const SSL *, int, int); +/* This function does not exist in 0.9.8e. Once we drop support for + RHEL/CentOS 5 this can be moved back to FUNCTIONS. */ +SSL_CTX *SSL_set_SSL_CTX(SSL *, SSL_CTX *); + +const SSL_METHOD* Cryptography_SSL_CTX_get_method(const SSL_CTX*); + +/* NPN APIs were introduced in OpenSSL 1.0.1. To continue to support earlier + * versions some special handling of these is necessary. + */ +void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *, + int (*)(SSL *, + const unsigned char **, + unsigned int *, + void *), + void *); +void SSL_CTX_set_next_proto_select_cb(SSL_CTX *, + int (*)(SSL *, + unsigned char **, + unsigned char *, + const unsigned char *, + unsigned int, + void *), + void *); +int SSL_select_next_proto(unsigned char **, unsigned char *, + const unsigned char *, unsigned int, + const unsigned char *, unsigned int); +void SSL_get0_next_proto_negotiated(const SSL *, + const unsigned char **, unsigned *); + +int sk_SSL_CIPHER_num(Cryptography_STACK_OF_SSL_CIPHER *); +SSL_CIPHER *sk_SSL_CIPHER_value(Cryptography_STACK_OF_SSL_CIPHER *, int); + +/* ALPN APIs were introduced in OpenSSL 1.0.2. To continue to support earlier + * versions some special handling of these is necessary. + */ +int SSL_CTX_set_alpn_protos(SSL_CTX *, const unsigned char*, unsigned); +int SSL_set_alpn_protos(SSL *, const unsigned char*, unsigned); +void SSL_CTX_set_alpn_select_cb(SSL_CTX *, + int (*) (SSL *, + const unsigned char **, + unsigned char *, + const unsigned char *, + unsigned int, + void *), + void *); +void SSL_get0_alpn_selected(const SSL *, const unsigned char **, unsigned *); +""" + +CUSTOMIZATIONS = """ +/** Secure renegotiation is supported in OpenSSL >= 0.9.8m + * But some Linux distributions have back ported some features. + */ +#ifndef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION +static const long Cryptography_HAS_SECURE_RENEGOTIATION = 0; +long (*SSL_get_secure_renegotiation_support)(SSL *) = NULL; +const long SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION = 0; +const long SSL_OP_LEGACY_SERVER_CONNECT = 0; +#else +static const long Cryptography_HAS_SECURE_RENEGOTIATION = 1; +#endif +#ifdef OPENSSL_NO_SSL2 +static const long Cryptography_HAS_SSL2 = 0; +SSL_METHOD* (*SSLv2_method)(void) = NULL; +SSL_METHOD* (*SSLv2_client_method)(void) = NULL; +SSL_METHOD* (*SSLv2_server_method)(void) = NULL; +#else +static const long Cryptography_HAS_SSL2 = 1; +#endif + +#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME +static const long Cryptography_HAS_TLSEXT_HOSTNAME = 1; +#else +static const long Cryptography_HAS_TLSEXT_HOSTNAME = 0; +void (*SSL_set_tlsext_host_name)(SSL *, char *) = NULL; +const char* (*SSL_get_servername)(const SSL *, const int) = NULL; +void (*SSL_CTX_set_tlsext_servername_callback)( + SSL_CTX *, + int (*)(const SSL *, int *, void *)) = NULL; +#endif + +#ifdef SSL_MODE_RELEASE_BUFFERS +static const long Cryptography_HAS_RELEASE_BUFFERS = 1; +#else +static const long Cryptography_HAS_RELEASE_BUFFERS = 0; +const long SSL_MODE_RELEASE_BUFFERS = 0; +#endif + +#ifdef SSL_OP_NO_COMPRESSION +static const long Cryptography_HAS_OP_NO_COMPRESSION = 1; +#else +static const long Cryptography_HAS_OP_NO_COMPRESSION = 0; +const long SSL_OP_NO_COMPRESSION = 0; +#endif + +#ifdef SSL_OP_NO_TLSv1_1 +static const long Cryptography_HAS_TLSv1_1 = 1; +#else +static const long Cryptography_HAS_TLSv1_1 = 0; +static const long SSL_OP_NO_TLSv1_1 = 0; +SSL_METHOD* (*TLSv1_1_method)(void) = NULL; +SSL_METHOD* (*TLSv1_1_client_method)(void) = NULL; +SSL_METHOD* (*TLSv1_1_server_method)(void) = NULL; +#endif + +#ifdef SSL_OP_NO_TLSv1_2 +static const long Cryptography_HAS_TLSv1_2 = 1; +#else +static const long Cryptography_HAS_TLSv1_2 = 0; +static const long SSL_OP_NO_TLSv1_2 = 0; +SSL_METHOD* (*TLSv1_2_method)(void) = NULL; +SSL_METHOD* (*TLSv1_2_client_method)(void) = NULL; +SSL_METHOD* (*TLSv1_2_server_method)(void) = NULL; +#endif + +#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING +static const long Cryptography_HAS_SSL_OP_MSIE_SSLV2_RSA_PADDING = 1; +#else +static const long Cryptography_HAS_SSL_OP_MSIE_SSLV2_RSA_PADDING = 0; +const long SSL_OP_MSIE_SSLV2_RSA_PADDING = 0; +#endif + +#ifdef OPENSSL_NO_EC +long (*SSL_CTX_set_tmp_ecdh)(SSL_CTX *, EC_KEY *) = NULL; +#endif + +#ifdef SSL_OP_NO_TICKET +static const long Cryptography_HAS_SSL_OP_NO_TICKET = 1; +#else +static const long Cryptography_HAS_SSL_OP_NO_TICKET = 0; +const long SSL_OP_NO_TICKET = 0; +#endif + +/* OpenSSL 0.9.8f+ */ +#if OPENSSL_VERSION_NUMBER >= 0x00908070L +static const long Cryptography_HAS_SSL_SET_SSL_CTX = 1; +#else +static const long Cryptography_HAS_SSL_SET_SSL_CTX = 0; +static const long TLSEXT_NAMETYPE_host_name = 0; +SSL_CTX *(*SSL_set_SSL_CTX)(SSL *, SSL_CTX *) = NULL; +#endif + +/* NetBSD shipped without including d1_meth.c. This workaround checks to see + if the version of NetBSD we're currently running on is old enough to + have the bug and provides an empty implementation so we can link and + then remove the function from the ffi object. */ +#ifdef __NetBSD__ +# include <sys/param.h> +# if (__NetBSD_Version__ < 699003800) +static const long Cryptography_HAS_NETBSD_D1_METH = 0; +const SSL_METHOD *DTLSv1_method(void) { + return NULL; +} +# else +static const long Cryptography_HAS_NETBSD_D1_METH = 1; +# endif +#else +static const long Cryptography_HAS_NETBSD_D1_METH = 1; +#endif + +/* Workaround for #794 caused by cffi const** bug. */ +const SSL_METHOD* Cryptography_SSL_CTX_get_method(const SSL_CTX* ctx) { + return ctx->method; +} + +/* Because OPENSSL defines macros that claim lack of support for things, rather + * than macros that claim support for things, we need to do a version check in + * addition to a definition check. NPN was added in 1.0.1: for any version + * before that, there is no compatibility. + */ +#if defined(OPENSSL_NO_NEXTPROTONEG) || OPENSSL_VERSION_NUMBER < 0x1000100fL +static const long Cryptography_HAS_NEXTPROTONEG = 0; +void (*SSL_CTX_set_next_protos_advertised_cb)(SSL_CTX *, + int (*)(SSL *, + const unsigned char **, + unsigned int *, + void *), + void *) = NULL; +void (*SSL_CTX_set_next_proto_select_cb)(SSL_CTX *, + int (*)(SSL *, + unsigned char **, + unsigned char *, + const unsigned char *, + unsigned int, + void *), + void *) = NULL; +int (*SSL_select_next_proto)(unsigned char **, unsigned char *, + const unsigned char *, unsigned int, + const unsigned char *, unsigned int) = NULL; +void (*SSL_get0_next_proto_negotiated)(const SSL *, + const unsigned char **, + unsigned *) = NULL; +#else +static const long Cryptography_HAS_NEXTPROTONEG = 1; +#endif + +/* ALPN was added in OpenSSL 1.0.2. */ +#if OPENSSL_VERSION_NUMBER < 0x10002001L +int (*SSL_CTX_set_alpn_protos)(SSL_CTX *, + const unsigned char*, + unsigned) = NULL; +int (*SSL_set_alpn_protos)(SSL *, const unsigned char*, unsigned) = NULL; +void (*SSL_CTX_set_alpn_select_cb)(SSL_CTX *, + int (*) (SSL *, + const unsigned char **, + unsigned char *, + const unsigned char *, + unsigned int, + void *), + void *) = NULL; +void (*SSL_get0_alpn_selected)(const SSL *, + const unsigned char **, + unsigned *) = NULL; +static const long Cryptography_HAS_ALPN = 0; +#else +static const long Cryptography_HAS_ALPN = 1; +#endif +""" + +CONDITIONAL_NAMES = { + "Cryptography_HAS_TLSv1_1": [ + "SSL_OP_NO_TLSv1_1", + "TLSv1_1_method", + "TLSv1_1_server_method", + "TLSv1_1_client_method", + ], + + "Cryptography_HAS_TLSv1_2": [ + "SSL_OP_NO_TLSv1_2", + "TLSv1_2_method", + "TLSv1_2_server_method", + "TLSv1_2_client_method", + ], + + "Cryptography_HAS_SSL2": [ + "SSLv2_method", + "SSLv2_client_method", + "SSLv2_server_method", + ], + + "Cryptography_HAS_TLSEXT_HOSTNAME": [ + "SSL_set_tlsext_host_name", + "SSL_get_servername", + "SSL_CTX_set_tlsext_servername_callback", + ], + + "Cryptography_HAS_RELEASE_BUFFERS": [ + "SSL_MODE_RELEASE_BUFFERS", + ], + + "Cryptography_HAS_OP_NO_COMPRESSION": [ + "SSL_OP_NO_COMPRESSION", + ], + + "Cryptography_HAS_SSL_OP_MSIE_SSLV2_RSA_PADDING": [ + "SSL_OP_MSIE_SSLV2_RSA_PADDING", + ], + + "Cryptography_HAS_EC": [ + "SSL_CTX_set_tmp_ecdh", + ], + + "Cryptography_HAS_SSL_OP_NO_TICKET": [ + "SSL_OP_NO_TICKET", + ], + + "Cryptography_HAS_SSL_SET_SSL_CTX": [ + "SSL_set_SSL_CTX", + "TLSEXT_NAMETYPE_host_name", + ], + + "Cryptography_HAS_NETBSD_D1_METH": [ + "DTLSv1_method", + ], + + "Cryptography_HAS_NEXTPROTONEG": [ + "SSL_CTX_set_next_protos_advertised_cb", + "SSL_CTX_set_next_proto_select_cb", + "SSL_select_next_proto", + "SSL_get0_next_proto_negotiated", + ], + + "Cryptography_HAS_SECURE_RENEGOTIATION": [ + "SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION", + "SSL_OP_LEGACY_SERVER_CONNECT", + "SSL_get_secure_renegotiation_support", + ], + + "Cryptography_HAS_ALPN": [ + "SSL_CTX_set_alpn_protos", + "SSL_set_alpn_protos", + "SSL_CTX_set_alpn_select_cb", + "SSL_get0_alpn_selected", + ] +} |