mirror of
https://boringssl.googlesource.com/boringssl
synced 2026-07-21 14:43:51 +00:00
Lily Chen
5940a37814
This CL includes the result of running util/update_comment_style.py over *.cc files in all remaining directories besides third_party/, and fixing omissions manually if necessary. Bug: 42290410 Change-Id: I52b1bb1aaff338b5ff1e9c6df8a722b86a6a6964 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/96153 Reviewed-by: Rudolf Polzer <rpolzer@google.com> Commit-Queue: Lily Chen <chlily@google.com>
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
// Copyright 2016 The BoringSSL Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/x509.h>
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#include "../crypto/x509/internal.h"
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using namespace bssl;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
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UniquePtr<X509> x509(d2i_X509(nullptr, &buf, len));
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if (x509 != nullptr) {
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// Extract the public key.
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EVP_PKEY_free(X509_get_pubkey(x509.get()));
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// Fuzz some deferred parsing.
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x509v3_cache_extensions(x509.get());
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// Fuzz every supported extension.
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for (int i = 0; i < X509_get_ext_count(x509.get()); i++) {
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const X509_EXTENSION *ext = X509_get_ext(x509.get(), i);
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void *parsed = X509V3_EXT_d2i(ext);
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if (parsed != nullptr) {
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int nid = OBJ_obj2nid(X509_EXTENSION_get_object(ext));
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BSSL_CHECK(nid != NID_undef);
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// Reserialize the extension. This should succeed if we were able to
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// parse it.
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// TODO(crbug.com/boringssl/352): Ideally we would also assert that
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// `new_ext` is identical to `ext`, but our parser is not strict enough.
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UniquePtr<X509_EXTENSION> new_ext(
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X509V3_EXT_i2d(nid, X509_EXTENSION_get_critical(ext), parsed));
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BSSL_CHECK(new_ext != nullptr);
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// This can only fail if `ext` was not a supported type, but then
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// `X509V3_EXT_d2i` should have failed.
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BSSL_CHECK(X509V3_EXT_free(nid, parsed));
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}
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}
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// Reserialize `x509`. This should succeed if we were able to parse it.
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// TODO(crbug.com/boringssl/352): Ideally we would also assert the output
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// matches the input, but our parser is not strict enough.
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uint8_t *der = nullptr;
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int der_len = i2d_X509(x509.get(), &der);
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BSSL_CHECK(der_len > 0);
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OPENSSL_free(der);
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// Reserialize `x509`'s TBSCertificate without reusing the cached encoding.
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// TODO(crbug.com/boringssl/352): Ideally we would also assert the output
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// matches the input TBSCertificate, but our parser is not strict enough.
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der = nullptr;
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der_len = i2d_re_X509_tbs(x509.get(), &der);
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BSSL_CHECK(der_len > 0);
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OPENSSL_free(der);
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BIO *bio = BIO_new(BIO_s_mem());
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X509_print(bio, x509.get());
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BIO_free(bio);
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}
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ERR_clear_error();
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return 0;
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}
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