Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 194 insertions, 0 deletions

diff --git a/third_party/libwebrtc/rtc_base/openssl_key_pair.cc b/third_party/libwebrtc/rtc_base/openssl_key_pair.cc
new file mode 100644
index 0000000000..4c474f2d54
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/openssl_key_pair.cc
@@ -0,0 +1,194 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_base/openssl_key_pair.h"
+
+#include <memory>
+#include <utility>
+
+#include "absl/strings/string_view.h"
+
+#if defined(WEBRTC_WIN)
+// Must be included first before openssl headers.
+#include "rtc_base/win32.h"  // NOLINT
+#endif                       // WEBRTC_WIN
+
+#include <openssl/bio.h>
+#include <openssl/bn.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/openssl.h"
+#include "rtc_base/openssl_utility.h"
+
+namespace rtc {
+
+// We could have exposed a myriad of parameters for the crypto stuff,
+// but keeping it simple seems best.
+
+// Generate a key pair. Caller is responsible for freeing the returned object.
+static EVP_PKEY* MakeKey(const KeyParams& key_params) {
+  RTC_LOG(LS_INFO) << "Making key pair";
+  EVP_PKEY* pkey = EVP_PKEY_new();
+  if (key_params.type() == KT_RSA) {
+    int key_length = key_params.rsa_params().mod_size;
+    BIGNUM* exponent = BN_new();
+    RSA* rsa = RSA_new();
+    if (!pkey || !exponent || !rsa ||
+        !BN_set_word(exponent, key_params.rsa_params().pub_exp) ||
+        !RSA_generate_key_ex(rsa, key_length, exponent, nullptr) ||
+        !EVP_PKEY_assign_RSA(pkey, rsa)) {
+      EVP_PKEY_free(pkey);
+      BN_free(exponent);
+      RSA_free(rsa);
+      RTC_LOG(LS_ERROR) << "Failed to make RSA key pair";
+      return nullptr;
+    }
+    // ownership of rsa struct was assigned, don't free it.
+    BN_free(exponent);
+  } else if (key_params.type() == KT_ECDSA) {
+    if (key_params.ec_curve() == EC_NIST_P256) {
+      EC_KEY* ec_key = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+      if (!ec_key) {
+        EVP_PKEY_free(pkey);
+        RTC_LOG(LS_ERROR) << "Failed to allocate EC key";
+        return nullptr;
+      }
+
+      // Ensure curve name is included when EC key is serialized.
+      // Without this call, OpenSSL versions before 1.1.0 will create
+      // certificates that don't work for TLS.
+      // This is a no-op for BoringSSL and OpenSSL 1.1.0+
+      EC_KEY_set_asn1_flag(ec_key, OPENSSL_EC_NAMED_CURVE);
+
+      if (!pkey || !ec_key || !EC_KEY_generate_key(ec_key) ||
+          !EVP_PKEY_assign_EC_KEY(pkey, ec_key)) {
+        EVP_PKEY_free(pkey);
+        EC_KEY_free(ec_key);
+        RTC_LOG(LS_ERROR) << "Failed to make EC key pair";
+        return nullptr;
+      }
+      // ownership of ec_key struct was assigned, don't free it.
+    } else {
+      // Add generation of any other curves here.
+      EVP_PKEY_free(pkey);
+      RTC_LOG(LS_ERROR) << "ECDSA key requested for unknown curve";
+      return nullptr;
+    }
+  } else {
+    EVP_PKEY_free(pkey);
+    RTC_LOG(LS_ERROR) << "Key type requested not understood";
+    return nullptr;
+  }
+
+  RTC_LOG(LS_INFO) << "Returning key pair";
+  return pkey;
+}
+
+std::unique_ptr<OpenSSLKeyPair> OpenSSLKeyPair::Generate(
+    const KeyParams& key_params) {
+  EVP_PKEY* pkey = MakeKey(key_params);
+  if (!pkey) {
+    openssl::LogSSLErrors("Generating key pair");
+    return nullptr;
+  }
+  return std::make_unique<OpenSSLKeyPair>(pkey);
+}
+
+std::unique_ptr<OpenSSLKeyPair> OpenSSLKeyPair::FromPrivateKeyPEMString(
+    absl::string_view pem_string) {
+  BIO* bio =
+      BIO_new_mem_buf(const_cast<char*>(pem_string.data()), pem_string.size());
+  if (!bio) {
+    RTC_LOG(LS_ERROR) << "Failed to create a new BIO buffer.";
+    return nullptr;
+  }
+  BIO_set_mem_eof_return(bio, 0);
+  EVP_PKEY* pkey = PEM_read_bio_PrivateKey(bio, nullptr, nullptr, nullptr);
+  BIO_free(bio);  // Frees the BIO, but not the pointed-to string.
+  if (!pkey) {
+    RTC_LOG(LS_ERROR) << "Failed to create the private key from PEM string.";
+    return nullptr;
+  }
+  if (EVP_PKEY_missing_parameters(pkey) != 0) {
+    RTC_LOG(LS_ERROR)
+        << "The resulting key pair is missing public key parameters.";
+    EVP_PKEY_free(pkey);
+    return nullptr;
+  }
+  return std::make_unique<OpenSSLKeyPair>(pkey);
+}
+
+OpenSSLKeyPair::~OpenSSLKeyPair() {
+  EVP_PKEY_free(pkey_);
+}
+
+std::unique_ptr<OpenSSLKeyPair> OpenSSLKeyPair::Clone() {
+  AddReference();
+  return std::make_unique<OpenSSLKeyPair>(pkey_);
+}
+
+void OpenSSLKeyPair::AddReference() {
+  EVP_PKEY_up_ref(pkey_);
+}
+
+std::string OpenSSLKeyPair::PrivateKeyToPEMString() const {
+  BIO* temp_memory_bio = BIO_new(BIO_s_mem());
+  if (!temp_memory_bio) {
+    RTC_LOG_F(LS_ERROR) << "Failed to allocate temporary memory bio";
+    RTC_DCHECK_NOTREACHED();
+    return "";
+  }
+  if (!PEM_write_bio_PrivateKey(temp_memory_bio, pkey_, nullptr, nullptr, 0,
+                                nullptr, nullptr)) {
+    RTC_LOG_F(LS_ERROR) << "Failed to write private key";
+    BIO_free(temp_memory_bio);
+    RTC_DCHECK_NOTREACHED();
+    return "";
+  }
+  char* buffer;
+  size_t len = BIO_get_mem_data(temp_memory_bio, &buffer);
+  std::string priv_key_str(buffer, len);
+  BIO_free(temp_memory_bio);
+  return priv_key_str;
+}
+
+std::string OpenSSLKeyPair::PublicKeyToPEMString() const {
+  BIO* temp_memory_bio = BIO_new(BIO_s_mem());
+  if (!temp_memory_bio) {
+    RTC_LOG_F(LS_ERROR) << "Failed to allocate temporary memory bio";
+    RTC_DCHECK_NOTREACHED();
+    return "";
+  }
+  if (!PEM_write_bio_PUBKEY(temp_memory_bio, pkey_)) {
+    RTC_LOG_F(LS_ERROR) << "Failed to write public key";
+    BIO_free(temp_memory_bio);
+    RTC_DCHECK_NOTREACHED();
+    return "";
+  }
+  BIO_write(temp_memory_bio, "\0", 1);
+  char* buffer;
+  BIO_get_mem_data(temp_memory_bio, &buffer);
+  std::string pub_key_str = buffer;
+  BIO_free(temp_memory_bio);
+  return pub_key_str;
+}
+
+bool OpenSSLKeyPair::operator==(const OpenSSLKeyPair& other) const {
+  return EVP_PKEY_cmp(this->pkey_, other.pkey_) == 1;
+}
+
+bool OpenSSLKeyPair::operator!=(const OpenSSLKeyPair& other) const {
+  return !(*this == other);
+}
+
+}  // namespace rtc