chromium/third_party/grpc/src/src/core/tsi/ssl_transport_security_utils.cc

//
//
// Copyright 2022 gRPC authors.
//
// 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 <grpc/support/port_platform.h>

#include "src/core/tsi/ssl_transport_security_utils.h"

#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/ssl.h>

#include "src/core/tsi/transport_security_interface.h"

namespace grpc_core {

const char* SslErrorString(int error) { … }

void LogSslErrorStack(void) { … }

tsi_result DoSslWrite(SSL* ssl, unsigned char* unprotected_bytes,
                      size_t unprotected_bytes_size) { … }

tsi_result DoSslRead(SSL* ssl, unsigned char* unprotected_bytes,
                     size_t* unprotected_bytes_size) { … }

// --- tsi_frame_protector util methods implementation. ---
tsi_result SslProtectorProtect(const unsigned char* unprotected_bytes,
                               const size_t buffer_size, size_t& buffer_offset,
                               unsigned char* buffer, SSL* ssl, BIO* network_io,
                               size_t* unprotected_bytes_size,
                               unsigned char* protected_output_frames,
                               size_t* protected_output_frames_size) { … }

tsi_result SslProtectorProtectFlush(size_t& buffer_offset,
                                    unsigned char* buffer, SSL* ssl,
                                    BIO* network_io,
                                    unsigned char* protected_output_frames,
                                    size_t* protected_output_frames_size,
                                    size_t* still_pending_size) { … }

tsi_result SslProtectorUnprotect(const unsigned char* protected_frames_bytes,
                                 SSL* ssl, BIO* network_io,
                                 size_t* protected_frames_bytes_size,
                                 unsigned char* unprotected_bytes,
                                 size_t* unprotected_bytes_size) { … }

}  // namespace grpc_core