1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "openssl_utils.h"
17
18 #include "log.h"
19
20 namespace OHOS {
21 namespace Security {
22 namespace CodeSign {
GetOpensslErrorMessage()23 void GetOpensslErrorMessage()
24 {
25 unsigned long retOpenssl;
26 char errOpenssl[OPENSSL_ERR_MESSAGE_MAX_LEN];
27 while ((retOpenssl = ERR_get_error()) != 0) {
28 // error string is written no more than OPENSSL_ERR_MESSAGE_MAX_LEN in errOpenssl
29 ERR_error_string_n(retOpenssl, errOpenssl, OPENSSL_ERR_MESSAGE_MAX_LEN);
30 LOG_ERROR(LABEL, "openssl err: %{public}lu, message: %{public}s", retOpenssl, errOpenssl);
31 }
32 }
33
LoadCertFromBuffer(const uint8_t * buffer,const uint32_t size)34 X509 *LoadCertFromBuffer(const uint8_t *buffer, const uint32_t size)
35 {
36 BIO *mem = BIO_new_mem_buf(buffer, size);
37 if (mem == nullptr) {
38 LOG_ERROR(LABEL, "Fail to create bio for cert.");
39 return nullptr;
40 }
41 X509 *cert = d2i_X509_bio(mem, nullptr);
42 if (cert == nullptr) {
43 ERR_LOG_WITH_OPEN_SSL_MSG("Certificate is invalid.");
44 }
45 BIO_free(mem);
46 return cert;
47 }
48
STACK_OF(X509)49 STACK_OF(X509) *MakeStackOfCerts(const std::vector<ByteBuffer> &certChain)
50 {
51 STACK_OF(X509)* certs = sk_X509_new_null();
52 if (certs == nullptr) {
53 return nullptr;
54 }
55 for (const ByteBuffer &cert: certChain) {
56 X509 *tmp = LoadCertFromBuffer(cert.GetBuffer(), cert.GetSize());
57 if ((tmp == nullptr) || (!sk_X509_push(certs, tmp))) {
58 // including each cert in certs and stack of certs
59 sk_X509_pop_free(certs, X509_free);
60 certs = nullptr;
61 break;
62 }
63 }
64 return certs;
65 }
66 }
67 }
68 }
69