OVMS3-idf/components/openssl/library/ssl_pkey.c
2016-09-23 14:58:14 +08:00

230 lines
4.6 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#include "ssl_lib.h"
#include "ssl_pkey.h"
#include "ssl_cert.h"
#include "ssl_methods.h"
#include "ssl_dbg.h"
#include "ssl_port.h"
/**
* @brief create a private key object
*/
EVP_PKEY* EVP_PKEY_new(void)
{
int ret;
EVP_PKEY *pkey;
pkey = ssl_zalloc(sizeof(EVP_PKEY));
if (!pkey)
SSL_RET(failed1, "ssl_malloc\n");
pkey->method = EVP_PKEY_method();
ret = EVP_PKEY_METHOD_CALL(new, pkey);
if (ret)
SSL_RET(failed2, "EVP_PKEY_METHOD_CALL\n");
return pkey;
failed2:
ssl_free(pkey);
failed1:
return NULL;
}
/**
* @brief free a private key object
*/
void EVP_PKEY_free(EVP_PKEY *pkey)
{
EVP_PKEY_METHOD_CALL(free, pkey);
ssl_free(pkey);
}
/**
* @brief load a character key context into system context. If '*a' is pointed to the
* private key, then load key into it. Or create a new private key object
*/
EVP_PKEY *d2i_PrivateKey(int type,
EVP_PKEY **a,
const unsigned char **pp,
long length)
{
int m = 0;
int ret;
EVP_PKEY *pkey;
SSL_ASSERT(pp);
SSL_ASSERT(*pp);
SSL_ASSERT(length);
if (a && *a) {
pkey = *a;
} else {
pkey = EVP_PKEY_new();;
if (!pkey)
SSL_RET(failed1, "EVP_PKEY_new\n");
m = 1;
}
ret = EVP_PKEY_METHOD_CALL(load, pkey, *pp, length);
if (ret)
SSL_RET(failed2, "EVP_PKEY_METHOD_CALL\n");
if (a)
*a = pkey;
return pkey;
failed2:
if (m)
EVP_PKEY_free(pkey);
failed1:
return NULL;
}
/**
* @brief set the SSL context private key
*/
int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
{
SSL_ASSERT(ctx);
SSL_ASSERT(pkey);
if (ctx->cert->pkey)
EVP_PKEY_free(ctx->cert->pkey);
ctx->cert->pkey = pkey;
return 1;
}
/**
* @brief set the SSL private key
*/
int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
{
SSL_ASSERT(ctx);
SSL_ASSERT(pkey);
if (!ssl->ca_reload)
ssl->ca_reload = 1;
else
EVP_PKEY_free(ssl->cert->pkey);
ssl->cert->pkey = pkey;
return 1;
}
/**
* @brief load private key into the SSL context
*/
int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx,
const unsigned char *d, long len)
{
int ret;
EVP_PKEY *pkey;
pkey = d2i_PrivateKey(0, &ctx->cert->pkey, &d, len);
if (!pkey)
SSL_RET(failed1, "d2i_PrivateKey\n");
ret = SSL_CTX_use_PrivateKey(ctx, pkey);
if (!ret)
SSL_RET(failed2, "SSL_CTX_use_PrivateKey\n");
return 1;
failed2:
EVP_PKEY_free(pkey);
failed1:
return 0;
}
/**
* @brief load private key into the SSL
*/
int SSL_use_PrivateKey_ASN1(int type, SSL *ssl,
const unsigned char *d, long len)
{
int ret;
int reload;
EVP_PKEY *pkey;
CERT *cert;
CERT *old_cert;
if (!ssl->crt_reload) {
cert = ssl_cert_new();
if (!cert)
SSL_RET(failed1, "ssl_cert_new\n");
old_cert = ssl->cert ;
ssl->cert = cert;
ssl->crt_reload = 1;
reload = 1;
} else {
reload = 0;
}
pkey = d2i_PrivateKey(0, &ssl->cert->pkey, &d, len);
if (!pkey)
SSL_RET(failed2, "d2i_PrivateKey\n");
ret = SSL_use_PrivateKey(ssl, pkey);
if (!ret)
SSL_RET(failed3, "SSL_use_PrivateKey\n");
return 1;
failed3:
EVP_PKEY_free(pkey);
failed2:
if (reload) {
ssl->cert = old_cert;
ssl_cert_free(cert);
ssl->crt_reload = 0;
}
failed1:
return 0;
}
/**
* @brief load the private key file into SSL context
*/
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
{
return 0;
}
/**
* @brief load the private key file into SSL
*/
int SSL_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
{
return 0;
}
/**
* @brief load the RSA ASN1 private key into SSL context
*/
int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
{
return SSL_CTX_use_PrivateKey_ASN1(0, ctx, d, len);
}