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/*
* ssl.c
*
* Copyright (C) AB Strakt
* Copyright (C) Jean-Paul Calderone
* See LICENSE for details.
*
* Main file of the SSL sub module.
* See the file RATIONALE for a short explanation of why this module was written.
*
* Reviewed 2001-07-23
*/
#include <Python.h>
#ifndef MS_WINDOWS
# include <sys/socket.h>
# include <netinet/in.h>
# if !(defined(__BEOS__) || defined(__CYGWIN__))
# include <netinet/tcp.h>
# endif
#else
# include <winsock.h>
# include <wincrypt.h>
#endif
#define SSL_MODULE
#include "ssl.h"
static char ssl_doc[] = "\n\
Main file of the SSL sub module.\n\
See the file RATIONALE for a short explanation of why this module was written.\n\
";
crypto_X509Obj* (*new_x509)(X509*, int);
crypto_X509NameObj* (*new_x509name)(X509_NAME*, int);
crypto_X509StoreObj* (*new_x509store)(X509_STORE*, int);
#ifndef PY3
void **crypto_API;
#endif
int _pyOpenSSL_tstate_key;
/* Exceptions defined by the SSL submodule */
PyObject *ssl_Error, /* Base class */
*ssl_ZeroReturnError, /* Used with SSL_get_error */
*ssl_WantReadError, /* ... */
*ssl_WantWriteError, /* ... */
*ssl_WantX509LookupError, /* ... */
*ssl_SysCallError; /* Uses (errno,errstr) */
static char ssl_SSLeay_version_doc[] = "\n\
Return a string describing the version of OpenSSL in use.\n\
\n\
:param type: One of the SSLEAY_ constants defined in this module.\n\
";
static PyObject *
ssl_SSLeay_version(PyObject *spam, PyObject *args) {
int t;
const char *version;
if (!PyArg_ParseTuple(args, "i:SSLeay_version", &t)) {
return NULL;
}
version = SSLeay_version(t);
return PyBytes_FromStringAndSize(version, strlen(version));
}
/* Methods in the OpenSSL.SSL module */
static PyMethodDef ssl_methods[] = {
{ "SSLeay_version", ssl_SSLeay_version, METH_VARARGS, ssl_SSLeay_version_doc },
{ NULL, NULL }
};
#ifdef PY3
static struct PyModuleDef sslmodule = {
PyModuleDef_HEAD_INIT,
"SSL",
ssl_doc,
-1,
ssl_methods
};
#endif
/*
* Initialize SSL sub module
*
* Arguments: None
* Returns: None
*/
PyOpenSSL_MODINIT(SSL) {
PyObject *module;
#ifndef PY3
static void *ssl_API[ssl_API_pointers];
PyObject *ssl_api_object;
import_crypto();
new_x509 = crypto_X509_New;
new_x509name = crypto_X509Name_New;
new_x509store = crypto_X509Store_New;
#else
# ifdef _WIN32
HMODULE crypto = GetModuleHandle("crypto.pyd");
if (crypto == NULL) {
PyErr_SetString(PyExc_RuntimeError, "Unable to get crypto module");
PyOpenSSL_MODRETURN(NULL);
}
new_x509 = (crypto_X509Obj* (*)(X509*, int))GetProcAddress(crypto, "crypto_X509_New");
new_x509name = (crypto_X509NameObj* (*)(X509_NAME*, int))GetProcAddress(crypto, "crypto_X509Name_New");
new_x509store = (crypto_X509StoreObj* (*)(X509_STORE*, int))GetProcAddress(crypto, "crypto_X509Store_New");
# else
new_x509 = crypto_X509_New;
new_x509name = crypto_X509Name_New;
new_x509store = crypto_X509Store_New;
# endif
#endif
SSL_library_init();
ERR_load_SSL_strings();
#ifdef PY3
module = PyModule_Create(&sslmodule);
#else
module = Py_InitModule3("SSL", ssl_methods, ssl_doc);
#endif
if (module == NULL) {
PyOpenSSL_MODRETURN(NULL);
}
#ifndef PY3
/* Initialize the C API pointer array */
ssl_API[ssl_Context_New_NUM] = (void *)ssl_Context_New;
ssl_API[ssl_Connection_New_NUM] = (void *)ssl_Connection_New;
ssl_api_object = PyCObject_FromVoidPtr((void *)ssl_API, NULL);
if (ssl_api_object != NULL) {
/* PyModule_AddObject steals a reference.
*/
Py_INCREF(ssl_api_object);
PyModule_AddObject(module, "_C_API", ssl_api_object);
}
#endif
/* Exceptions */
/*
* ADD_EXCEPTION(dict,name,base) expands to a correct Exception declaration,
* inserting OpenSSL.SSL.name into dict, derviving the exception from base.
*/
#define ADD_EXCEPTION(_name, _base) \
do { \
ssl_##_name = PyErr_NewException("OpenSSL.SSL."#_name, _base, NULL);\
if (ssl_##_name == NULL) \
goto error; \
/* PyModule_AddObject steals a reference. */ \
Py_INCREF(ssl_##_name); \
if (PyModule_AddObject(module, #_name, ssl_##_name) != 0) \
goto error; \
} while (0)
ssl_Error = PyErr_NewException("OpenSSL.SSL.Error", NULL, NULL);
if (ssl_Error == NULL) {
goto error;
}
/* PyModule_AddObject steals a reference. */
Py_INCREF(ssl_Error);
if (PyModule_AddObject(module, "Error", ssl_Error) != 0)
goto error;
ADD_EXCEPTION(ZeroReturnError, ssl_Error);
ADD_EXCEPTION(WantReadError, ssl_Error);
ADD_EXCEPTION(WantWriteError, ssl_Error);
ADD_EXCEPTION(WantX509LookupError, ssl_Error);
ADD_EXCEPTION(SysCallError, ssl_Error);
#undef ADD_EXCEPTION
/* Method constants */
PyModule_AddIntConstant(module, "SSLv2_METHOD", ssl_SSLv2_METHOD);
PyModule_AddIntConstant(module, "SSLv3_METHOD", ssl_SSLv3_METHOD);
PyModule_AddIntConstant(module, "SSLv23_METHOD", ssl_SSLv23_METHOD);
PyModule_AddIntConstant(module, "TLSv1_METHOD", ssl_TLSv1_METHOD);
/* Verify constants */
PyModule_AddIntConstant(module, "VERIFY_NONE", SSL_VERIFY_NONE);
PyModule_AddIntConstant(module, "VERIFY_PEER", SSL_VERIFY_PEER);
PyModule_AddIntConstant(module, "VERIFY_FAIL_IF_NO_PEER_CERT",
SSL_VERIFY_FAIL_IF_NO_PEER_CERT);
PyModule_AddIntConstant(module, "VERIFY_CLIENT_ONCE",
SSL_VERIFY_CLIENT_ONCE);
/* File type constants */
PyModule_AddIntConstant(module, "FILETYPE_PEM", SSL_FILETYPE_PEM);
PyModule_AddIntConstant(module, "FILETYPE_ASN1", SSL_FILETYPE_ASN1);
/* SSL option constants */
PyModule_AddIntConstant(module, "OP_SINGLE_DH_USE", SSL_OP_SINGLE_DH_USE);
PyModule_AddIntConstant(module, "OP_EPHEMERAL_RSA", SSL_OP_EPHEMERAL_RSA);
PyModule_AddIntConstant(module, "OP_NO_SSLv2", SSL_OP_NO_SSLv2);
PyModule_AddIntConstant(module, "OP_NO_SSLv3", SSL_OP_NO_SSLv3);
PyModule_AddIntConstant(module, "OP_NO_TLSv1", SSL_OP_NO_TLSv1);
/* More SSL option constants */
PyModule_AddIntConstant(module, "OP_MICROSOFT_SESS_ID_BUG", SSL_OP_MICROSOFT_SESS_ID_BUG);
PyModule_AddIntConstant(module, "OP_NETSCAPE_CHALLENGE_BUG", SSL_OP_NETSCAPE_CHALLENGE_BUG);
PyModule_AddIntConstant(module, "OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG", SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG);
PyModule_AddIntConstant(module, "OP_SSLREF2_REUSE_CERT_TYPE_BUG", SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
PyModule_AddIntConstant(module, "OP_MICROSOFT_BIG_SSLV3_BUFFER", SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
PyModule_AddIntConstant(module, "OP_MSIE_SSLV2_RSA_PADDING", SSL_OP_MSIE_SSLV2_RSA_PADDING);
PyModule_AddIntConstant(module, "OP_SSLEAY_080_CLIENT_DH_BUG", SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
PyModule_AddIntConstant(module, "OP_TLS_D5_BUG", SSL_OP_TLS_D5_BUG);
PyModule_AddIntConstant(module, "OP_TLS_BLOCK_PADDING_BUG", SSL_OP_TLS_BLOCK_PADDING_BUG);
PyModule_AddIntConstant(module, "OP_DONT_INSERT_EMPTY_FRAGMENTS", SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
PyModule_AddIntConstant(module, "OP_ALL", SSL_OP_ALL);
PyModule_AddIntConstant(module, "OP_CIPHER_SERVER_PREFERENCE", SSL_OP_CIPHER_SERVER_PREFERENCE);
PyModule_AddIntConstant(module, "OP_TLS_ROLLBACK_BUG", SSL_OP_TLS_ROLLBACK_BUG);
PyModule_AddIntConstant(module, "OP_PKCS1_CHECK_1", SSL_OP_PKCS1_CHECK_1);
PyModule_AddIntConstant(module, "OP_PKCS1_CHECK_2", SSL_OP_PKCS1_CHECK_2);
PyModule_AddIntConstant(module, "OP_NETSCAPE_CA_DN_BUG", SSL_OP_NETSCAPE_CA_DN_BUG);
PyModule_AddIntConstant(module, "OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG", SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
#ifdef SSL_OP_NO_COMPRESSION
PyModule_AddIntConstant(module, "OP_NO_COMPRESSION", SSL_OP_NO_COMPRESSION);
#endif
/* DTLS related options. The first two of these were introduced in
* 2005, the third in 2007. To accomodate systems which are still using
* older versions, make them optional. */
#ifdef SSL_OP_NO_QUERY_MTU
PyModule_AddIntConstant(module, "OP_NO_QUERY_MTU", SSL_OP_NO_QUERY_MTU);
#endif
#ifdef SSL_OP_COOKIE_EXCHANGE
PyModule_AddIntConstant(module, "OP_COOKIE_EXCHANGE", SSL_OP_COOKIE_EXCHANGE);
#endif
#ifdef SSL_OP_NO_TICKET
PyModule_AddIntConstant(module, "OP_NO_TICKET", SSL_OP_NO_TICKET);
#endif
/* For SSL_set_shutdown */
PyModule_AddIntConstant(module, "SENT_SHUTDOWN", SSL_SENT_SHUTDOWN);
PyModule_AddIntConstant(module, "RECEIVED_SHUTDOWN", SSL_RECEIVED_SHUTDOWN);
/* For set_info_callback */
PyModule_AddIntConstant(module, "SSL_ST_CONNECT", SSL_ST_CONNECT);
PyModule_AddIntConstant(module, "SSL_ST_ACCEPT", SSL_ST_ACCEPT);
PyModule_AddIntConstant(module, "SSL_ST_MASK", SSL_ST_MASK);
PyModule_AddIntConstant(module, "SSL_ST_INIT", SSL_ST_INIT);
PyModule_AddIntConstant(module, "SSL_ST_BEFORE", SSL_ST_BEFORE);
PyModule_AddIntConstant(module, "SSL_ST_OK", SSL_ST_OK);
PyModule_AddIntConstant(module, "SSL_ST_RENEGOTIATE", SSL_ST_RENEGOTIATE);
PyModule_AddIntConstant(module, "SSL_CB_LOOP", SSL_CB_LOOP);
PyModule_AddIntConstant(module, "SSL_CB_EXIT", SSL_CB_EXIT);
PyModule_AddIntConstant(module, "SSL_CB_READ", SSL_CB_READ);
PyModule_AddIntConstant(module, "SSL_CB_WRITE", SSL_CB_WRITE);
PyModule_AddIntConstant(module, "SSL_CB_ALERT", SSL_CB_ALERT);
PyModule_AddIntConstant(module, "SSL_CB_READ_ALERT", SSL_CB_READ_ALERT);
PyModule_AddIntConstant(module, "SSL_CB_WRITE_ALERT", SSL_CB_WRITE_ALERT);
PyModule_AddIntConstant(module, "SSL_CB_ACCEPT_LOOP", SSL_CB_ACCEPT_LOOP);
PyModule_AddIntConstant(module, "SSL_CB_ACCEPT_EXIT", SSL_CB_ACCEPT_EXIT);
PyModule_AddIntConstant(module, "SSL_CB_CONNECT_LOOP", SSL_CB_CONNECT_LOOP);
PyModule_AddIntConstant(module, "SSL_CB_CONNECT_EXIT", SSL_CB_CONNECT_EXIT);
PyModule_AddIntConstant(module, "SSL_CB_HANDSHAKE_START", SSL_CB_HANDSHAKE_START);
PyModule_AddIntConstant(module, "SSL_CB_HANDSHAKE_DONE", SSL_CB_HANDSHAKE_DONE);
/* Version information indicators, used with SSLeay_version */
PyModule_AddIntConstant(module, "SSLEAY_VERSION", SSLEAY_VERSION);
PyModule_AddIntConstant(module, "SSLEAY_CFLAGS", SSLEAY_CFLAGS);
PyModule_AddIntConstant(module, "SSLEAY_BUILT_ON", SSLEAY_BUILT_ON);
PyModule_AddIntConstant(module, "SSLEAY_PLATFORM", SSLEAY_PLATFORM);
PyModule_AddIntConstant(module, "SSLEAY_DIR", SSLEAY_DIR);
/* Cache modes */
#define CACHE_MODE(mode) \
PyModule_AddIntConstant(module, "SESS_CACHE_" #mode, SSL_SESS_CACHE_##mode)
CACHE_MODE(OFF);
CACHE_MODE(CLIENT);
CACHE_MODE(SERVER);
CACHE_MODE(BOTH);
CACHE_MODE(NO_AUTO_CLEAR);
CACHE_MODE(NO_INTERNAL_LOOKUP);
CACHE_MODE(NO_INTERNAL_STORE);
CACHE_MODE(NO_INTERNAL);
#undef CACHE_MODE
/* Straight up version number */
PyModule_AddIntConstant(module, "OPENSSL_VERSION_NUMBER", OPENSSL_VERSION_NUMBER);
/* SSL modes constants */
#ifdef SSL_MODE_RELEASE_BUFFERS
PyModule_AddIntConstant(module, "MODE_RELEASE_BUFFERS", SSL_MODE_RELEASE_BUFFERS);
#endif
if (!init_ssl_context(module))
goto error;
if (!init_ssl_session(module))
goto error;
if (!init_ssl_connection(module))
goto error;
#ifdef WITH_THREAD
/*
* Initialize this module's threading support structures.
*/
_pyOpenSSL_tstate_key = PyThread_create_key();
#endif
PyOpenSSL_MODRETURN(module);
error:
PyOpenSSL_MODRETURN(NULL);
;
}
|
