WolfSSL
/
wolfssl-py
mirror of https://github.com/wolfSSL/wolfssl-py.git
1
0
Fork 0
Code Issues Releases Wiki Activity
wolfssl-py/wolfssl/_build_ffi.py

298 lines
12 KiB
Python
Raw Blame History

# -*- coding: utf-8 -*-
#
# build_ffi.py
#
# Copyright (C) 2006-2020 wolfSSL Inc.
#
# This file is part of wolfSSL. (formerly known as CyaSSL)
#
# wolfSSL is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# wolfSSL is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
# pylint: disable=missing-docstring, invalid-name
from distutils.util import get_platform
from cffi import FFI
from wolfssl._build_wolfssl import wolfssl_inc_path, wolfssl_lib_path, ensure_wolfssl_src, make, make_flags, local_path
from wolfssl.__about__ import __wolfssl_version__ as version
import wolfssl._openssl as openssl
import subprocess
import shlex
import os
from ctypes import cdll
from collections import namedtuple
libwolfssl_path = ""
def make_optional_func_list(libwolfssl_path, funcs):
if libwolfssl_path.endswith(".so"):
libwolfssl = cdll.LoadLibrary(libwolfssl_path)
defined = []
for func in funcs:
try:
getattr(libwolfssl, func.name)
defined.append(func)
except AttributeError as _:
pass
# Can't discover functions in a static library with ctypes. Need to fall
# back to running nm as a subprocess.
else:
nm_cmd = "nm --defined-only {}".format(libwolfssl_path)
result = subprocess.run(shlex.split(nm_cmd), capture_output=True)
nm_stdout = result.stdout.decode()
defined = [func for func in funcs if func.name in nm_stdout]
return defined
def get_libwolfssl():
libwolfssl_path = os.path.join(wolfssl_lib_path(), "libwolfssl.a")
if not os.path.exists(libwolfssl_path):
libwolfssl_path = os.path.join(wolfssl_lib_path(), "libwolfssl.so")
if not os.path.exists(libwolfssl_path):
return 0
else:
return 1
else:
return 1
def generate_libwolfssl():
ensure_wolfssl_src(version)
prefix = local_path("lib/wolfssl/{}/{}".format(
get_platform(), version))
make(make_flags(prefix, False))
if get_libwolfssl() == 0:
generate_libwolfssl()
get_libwolfssl()
WolfFunction = namedtuple("WolfFunction", ["name", "native_sig", "ossl_sig"])
# Depending on how wolfSSL was configured, the functions below may or may not be
# defined.
optional_funcs = [
WolfFunction("wolfSSL_ERR_func_error_string",
"const char* wolfSSL_ERR_func_error_string(unsigned long)",
"const char* ERR_func_error_string(unsigned long)"),
WolfFunction("wolfSSL_ERR_lib_error_string",
"const char* wolfSSL_ERR_lib_error_string(unsigned long)",
"const char* ERR_lib_error_string(unsigned long)"),
WolfFunction("wolfSSL_X509_EXTENSION_dup",
"WOLFSSL_X509_EXTENSION* wolfSSL_X509_EXTENSION_dup(WOLFSSL_X509_EXTENSION*)",
"X509_EXTENSION* X509_EXTENSION_dup(X509_EXTENSION*)")
]
optional_funcs = make_optional_func_list(libwolfssl_path, optional_funcs)
source = """
#include <wolfssl/options.h>
#include <wolfssl/ssl.h>
"""
ffi_source = source + openssl.source
ffi = FFI()
ffi.set_source(
"wolfssl._ffi",
ffi_source,
include_dirs=[wolfssl_inc_path()],
library_dirs=[wolfssl_lib_path()],
libraries=["wolfssl"],
)
cdef = """
/**
* Constants
*/
static const long SOCKET_PEER_CLOSED_E;
/**
* Types
*/
typedef unsigned char byte;
typedef unsigned int word32;
typedef ... WOLFSSL_CTX;
typedef ... WOLFSSL;
typedef ... WOLFSSL_X509;
typedef ... WOLFSSL_X509_EXTENSION;
typedef ... WOLFSSL_X509_STORE_CTX;
typedef ... WOLFSSL_X509_NAME;
typedef ... WOLFSSL_X509_NAME_ENTRY;
typedef ... WOLFSSL_ALERT_HISTORY;
typedef ... WOLFSSL_METHOD;
typedef ... WOLFSSL_ASN1_TIME;
typedef ... WOLFSSL_ASN1_GENERALIZEDTIME;
typedef ... WOLFSSL_ASN1_STRING;
typedef ... WOLFSSL_ASN1_OBJECT;
typedef int (*VerifyCallback)(int, WOLFSSL_X509_STORE_CTX*);
typedef int pem_password_cb(char*, int, int, void*);
typedef int (*CallbackSniRecv)(WOLFSSL*, int*, void*);
/**
* Memory
*/
void wolfSSL_Free(void*);
void wolfSSL_OPENSSL_free(void*);
/**
* Debugging
*/
void wolfSSL_Debugging_ON();
void wolfSSL_Debugging_OFF();
/**
* SSL/TLS Method functions
*/
WOLFSSL_METHOD* wolfTLSv1_1_server_method(void);
WOLFSSL_METHOD* wolfTLSv1_1_client_method(void);
WOLFSSL_METHOD* wolfTLSv1_2_server_method(void);
WOLFSSL_METHOD* wolfTLSv1_2_client_method(void);
WOLFSSL_METHOD* wolfSSLv23_server_method(void);
WOLFSSL_METHOD* wolfSSLv23_client_method(void);
WOLFSSL_METHOD* wolfSSLv23_method(void);
WOLFSSL_METHOD* wolfTLSv1_1_method(void);
WOLFSSL_METHOD* wolfTLSv1_2_method(void);
/**
* SSL/TLS Context functions
*/
WOLFSSL_CTX* wolfSSL_CTX_new(WOLFSSL_METHOD*);
void wolfSSL_CTX_free(WOLFSSL_CTX*);
void wolfSSL_CTX_set_verify(WOLFSSL_CTX*, int, VerifyCallback);
int wolfSSL_CTX_set_cipher_list(WOLFSSL_CTX*, const char*);
int wolfSSL_CTX_use_PrivateKey_file(WOLFSSL_CTX*, const char*, int);
int wolfSSL_CTX_load_verify_locations(WOLFSSL_CTX*, const char*,
const char*);
int wolfSSL_CTX_load_verify_buffer(WOLFSSL_CTX*, const unsigned char*,
long,int);
int wolfSSL_CTX_use_certificate_chain_file(WOLFSSL_CTX*, const char *);
int wolfSSL_CTX_UseSNI(WOLFSSL_CTX*, unsigned char, const void*,
unsigned short);
long wolfSSL_CTX_get_options(WOLFSSL_CTX*);
long wolfSSL_CTX_set_options(WOLFSSL_CTX*, long);
void wolfSSL_CTX_set_default_passwd_cb(WOLFSSL_CTX*, pem_password_cb*);
int wolfSSL_CTX_set_tlsext_servername_callback(WOLFSSL_CTX*,
CallbackSniRecv);
long wolfSSL_CTX_set_mode(WOLFSSL_CTX*, long);
/**
* SSL/TLS Session functions
*/
void wolfSSL_Init();
WOLFSSL* wolfSSL_new(WOLFSSL_CTX*);
void wolfSSL_free(WOLFSSL*);
int wolfSSL_set_fd(WOLFSSL*, int);
int wolfSSL_get_error(WOLFSSL*, int);
char* wolfSSL_ERR_error_string(int, char*);
int wolfSSL_negotiate(WOLFSSL*);
int wolfSSL_connect(WOLFSSL*);
int wolfSSL_accept(WOLFSSL*);
int wolfSSL_write(WOLFSSL*, const void*, int);
int wolfSSL_read(WOLFSSL*, void*, int);
int wolfSSL_pending(WOLFSSL*);
int wolfSSL_shutdown(WOLFSSL*);
WOLFSSL_X509* wolfSSL_get_peer_certificate(WOLFSSL*);
int wolfSSL_UseSNI(WOLFSSL*, unsigned char, const void*,
unsigned short);
int wolfSSL_check_domain_name(WOLFSSL*, const char*);
int wolfSSL_get_alert_history(WOLFSSL*, WOLFSSL_ALERT_HISTORY*);
const char* wolfSSL_get_servername(WOLFSSL*, unsigned char);
int wolfSSL_set_tlsext_host_name(WOLFSSL*, const char*);
long wolfSSL_ctrl(WOLFSSL*, int, long, void*);
void wolfSSL_set_connect_state(WOLFSSL*);
/**
* WOLFSSL_X509 functions
*/
char* wolfSSL_X509_get_subjectCN(void*);
char* wolfSSL_X509_get_next_altname(void*);
const unsigned char* wolfSSL_X509_get_der(void*, int*);
WOLFSSL_X509* wolfSSL_X509_STORE_CTX_get_current_cert(
WOLFSSL_X509_STORE_CTX*);
int wolfSSL_X509_up_ref(WOLFSSL_X509*);
void wolfSSL_X509_free(WOLFSSL_X509*);
int wolfSSL_X509_STORE_CTX_get_error(
WOLFSSL_X509_STORE_CTX*);
int wolfSSL_X509_STORE_CTX_get_error_depth(
WOLFSSL_X509_STORE_CTX*);
int wolfSSL_get_ex_data_X509_STORE_CTX_idx(void);
void* wolfSSL_X509_STORE_CTX_get_ex_data(
WOLFSSL_X509_STORE_CTX*, int);
void wolfSSL_X509_STORE_CTX_set_error(
WOLFSSL_X509_STORE_CTX*, int);
WOLFSSL_X509_NAME* wolfSSL_X509_get_subject_name(WOLFSSL_X509*);
char* wolfSSL_X509_NAME_oneline(WOLFSSL_X509_NAME*,
char*, int);
WOLFSSL_ASN1_TIME* wolfSSL_X509_get_notBefore(const WOLFSSL_X509*);
WOLFSSL_ASN1_TIME* wolfSSL_X509_get_notAfter(const WOLFSSL_X509*);
int wolfSSL_X509_NAME_entry_count(WOLFSSL_X509_NAME*);
WOLFSSL_X509_NAME_ENTRY* wolfSSL_X509_NAME_get_entry(WOLFSSL_X509_NAME*, int);
WOLFSSL_ASN1_OBJECT* wolfSSL_X509_NAME_ENTRY_get_object(
WOLFSSL_X509_NAME_ENTRY*);
WOLFSSL_ASN1_STRING* wolfSSL_X509_NAME_ENTRY_get_data(WOLFSSL_X509_NAME_ENTRY*);
int wolfSSL_X509_NAME_get_index_by_NID(WOLFSSL_X509_NAME*, int,
int);
int wolfSSL_X509_NAME_cmp(const WOLFSSL_X509_NAME*,
const WOLFSSL_X509_NAME*);
int wolfSSL_X509_get_ext_count(const WOLFSSL_X509*);
WOLFSSL_X509_EXTENSION* wolfSSL_X509_get_ext(const WOLFSSL_X509*, int);
void wolfSSL_X509_EXTENSION_free(
WOLFSSL_X509_EXTENSION*);
WOLFSSL_ASN1_OBJECT* wolfSSL_X509_EXTENSION_get_object(
WOLFSSL_X509_EXTENSION*);
WOLFSSL_ASN1_STRING* wolfSSL_X509_EXTENSION_get_data(
WOLFSSL_X509_EXTENSION*);
WOLFSSL_X509* wolfSSL_X509_dup(WOLFSSL_X509*);
/**
* ASN.1
*/
int wolfSSL_ASN1_STRING_length(WOLFSSL_ASN1_STRING*);
int wolfSSL_ASN1_STRING_type(const WOLFSSL_ASN1_STRING*);
unsigned char* wolfSSL_ASN1_STRING_data(WOLFSSL_ASN1_STRING*);
WOLFSSL_ASN1_TIME* wolfSSL_ASN1_TIME_to_generalizedtime(WOLFSSL_ASN1_TIME*,
WOLFSSL_ASN1_TIME**);
void wolfSSL_ASN1_GENERALIZEDTIME_free(
WOLFSSL_ASN1_GENERALIZEDTIME*);
void wolfSSL_ASN1_TIME_free(WOLFSSL_ASN1_TIME*);
int wolfSSL_ASN1_TIME_get_length(WOLFSSL_ASN1_TIME*);
unsigned char* wolfSSL_ASN1_TIME_get_data(WOLFSSL_ASN1_TIME*);
int wolfSSL_ASN1_STRING_to_UTF8(unsigned char **,
WOLFSSL_ASN1_STRING*);
/**
* Misc.
*/
int wolfSSL_library_init(void);
const char* wolfSSL_alert_type_string_long(int);
const char* wolfSSL_alert_desc_string_long(int);
unsigned long wolfSSL_ERR_get_error(void);
const char* wolfSSL_ERR_reason_error_string(unsigned long);
int wolfSSL_OBJ_obj2nid(const WOLFSSL_ASN1_OBJECT*);
const char* wolfSSL_OBJ_nid2sn(int n);
int wolfSSL_OBJ_txt2nid(const char*);
"""
for func in optional_funcs:
cdef += "{};".format(func.native_sig)
ffi_cdef = cdef + openssl.construct_cdef(optional_funcs)
ffi.cdef(ffi_cdef)
ffi.compile(verbose=True)
Reference in New Issue View Git Blame Copy Permalink