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Unified Diff: net/socket/ssl_client_socket_openssl.cc

Issue 1921563003: Renaming _openssl files to _impl (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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Index: net/socket/ssl_client_socket_openssl.cc
diff --git a/net/socket/ssl_client_socket_openssl.cc b/net/socket/ssl_client_socket_openssl.cc
deleted file mode 100644
index 228e6897c3df4482f039dad19f569827c5fbc905..0000000000000000000000000000000000000000
--- a/net/socket/ssl_client_socket_openssl.cc
+++ /dev/null
@@ -1,2314 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// OpenSSL binding for SSLClientSocket. The class layout and general principle
-// of operation is derived from SSLClientSocketNSS.
-
-#include "net/socket/ssl_client_socket_openssl.h"
-
-#include <errno.h>
-#include <openssl/bio.h>
-#include <openssl/bytestring.h>
-#include <openssl/err.h>
-#include <openssl/evp.h>
-#include <openssl/mem.h>
-#include <openssl/ssl.h>
-#include <string.h>
-
-#include <utility>
-
-#include "base/bind.h"
-#include "base/callback_helpers.h"
-#include "base/lazy_instance.h"
-#include "base/macros.h"
-#include "base/memory/singleton.h"
-#include "base/metrics/histogram_macros.h"
-#include "base/metrics/sparse_histogram.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_piece.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_local.h"
-#include "base/trace_event/trace_event.h"
-#include "base/values.h"
-#include "crypto/auto_cbb.h"
-#include "crypto/ec_private_key.h"
-#include "crypto/openssl_util.h"
-#include "crypto/scoped_openssl_types.h"
-#include "net/base/ip_address.h"
-#include "net/base/net_errors.h"
-#include "net/cert/cert_verifier.h"
-#include "net/cert/ct_ev_whitelist.h"
-#include "net/cert/ct_policy_enforcer.h"
-#include "net/cert/ct_policy_status.h"
-#include "net/cert/ct_verifier.h"
-#include "net/cert/x509_certificate_net_log_param.h"
-#include "net/cert/x509_util_openssl.h"
-#include "net/http/transport_security_state.h"
-#include "net/ssl/scoped_openssl_types.h"
-#include "net/ssl/ssl_cert_request_info.h"
-#include "net/ssl/ssl_client_session_cache_openssl.h"
-#include "net/ssl/ssl_connection_status_flags.h"
-#include "net/ssl/ssl_failure_state.h"
-#include "net/ssl/ssl_info.h"
-#include "net/ssl/ssl_private_key.h"
-#include "net/ssl/token_binding.h"
-
-#if !defined(OS_NACL)
-#include "net/ssl/ssl_key_logger.h"
-#endif
-
-#if defined(USE_NSS_CERTS)
-#include "net/cert_net/nss_ocsp.h"
-#endif
-
-namespace net {
-
-namespace {
-
-// Enable this to see logging for state machine state transitions.
-#if 0
-#define GotoState(s) do { DVLOG(2) << (void *)this << " " << __FUNCTION__ << \
- " jump to state " << s; \
- next_handshake_state_ = s; } while (0)
-#else
-#define GotoState(s) next_handshake_state_ = s
-#endif
-
-// This constant can be any non-negative/non-zero value (eg: it does not
-// overlap with any value of the net::Error range, including net::OK).
-const int kNoPendingResult = 1;
-
-// If a client doesn't have a list of protocols that it supports, but
-// the server supports NPN, choosing "http/1.1" is the best answer.
-const char kDefaultSupportedNPNProtocol[] = "http/1.1";
-
-// Default size of the internal BoringSSL buffers.
-const int KDefaultOpenSSLBufferSize = 17 * 1024;
-
-// TLS extension number use for Token Binding.
-const unsigned int kTbExtNum = 24;
-
-// Token Binding ProtocolVersions supported.
-const uint8_t kTbProtocolVersionMajor = 0;
-const uint8_t kTbProtocolVersionMinor = 5;
-const uint8_t kTbMinProtocolVersionMajor = 0;
-const uint8_t kTbMinProtocolVersionMinor = 3;
-
-bool EVP_MDToPrivateKeyHash(const EVP_MD* md, SSLPrivateKey::Hash* hash) {
- switch (EVP_MD_type(md)) {
- case NID_md5_sha1:
- *hash = SSLPrivateKey::Hash::MD5_SHA1;
- return true;
- case NID_sha1:
- *hash = SSLPrivateKey::Hash::SHA1;
- return true;
- case NID_sha256:
- *hash = SSLPrivateKey::Hash::SHA256;
- return true;
- case NID_sha384:
- *hash = SSLPrivateKey::Hash::SHA384;
- return true;
- case NID_sha512:
- *hash = SSLPrivateKey::Hash::SHA512;
- return true;
- default:
- return false;
- }
-}
-
-std::unique_ptr<base::Value> NetLogPrivateKeyOperationCallback(
- SSLPrivateKey::Type type,
- SSLPrivateKey::Hash hash,
- NetLogCaptureMode mode) {
- std::string type_str;
- switch (type) {
- case SSLPrivateKey::Type::RSA:
- type_str = "RSA";
- break;
- case SSLPrivateKey::Type::ECDSA:
- type_str = "ECDSA";
- break;
- }
-
- std::string hash_str;
- switch (hash) {
- case SSLPrivateKey::Hash::MD5_SHA1:
- hash_str = "MD5_SHA1";
- break;
- case SSLPrivateKey::Hash::SHA1:
- hash_str = "SHA1";
- break;
- case SSLPrivateKey::Hash::SHA256:
- hash_str = "SHA256";
- break;
- case SSLPrivateKey::Hash::SHA384:
- hash_str = "SHA384";
- break;
- case SSLPrivateKey::Hash::SHA512:
- hash_str = "SHA512";
- break;
- }
-
- std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue);
- value->SetString("type", type_str);
- value->SetString("hash", hash_str);
- return std::move(value);
-}
-
-std::unique_ptr<base::Value> NetLogChannelIDLookupCallback(
- ChannelIDService* channel_id_service,
- NetLogCaptureMode capture_mode) {
- ChannelIDStore* store = channel_id_service->GetChannelIDStore();
- std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
- dict->SetBoolean("ephemeral", store->IsEphemeral());
- dict->SetString("service", base::HexEncode(&channel_id_service,
- sizeof(channel_id_service)));
- dict->SetString("store", base::HexEncode(&store, sizeof(store)));
- return std::move(dict);
-}
-
-std::unique_ptr<base::Value> NetLogChannelIDLookupCompleteCallback(
- crypto::ECPrivateKey* key,
- int result,
- NetLogCaptureMode capture_mode) {
- std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
- dict->SetInteger("net_error", result);
- std::string raw_key;
- if (result == OK && key && key->ExportRawPublicKey(&raw_key)) {
- std::string key_to_log = "redacted";
- if (capture_mode.include_cookies_and_credentials()) {
- key_to_log = base::HexEncode(raw_key.data(), raw_key.length());
- }
- dict->SetString("key", key_to_log);
- }
- return std::move(dict);
-}
-
-} // namespace
-
-class SSLClientSocketOpenSSL::SSLContext {
- public:
- static SSLContext* GetInstance() {
- return base::Singleton<SSLContext>::get();
- }
- SSL_CTX* ssl_ctx() { return ssl_ctx_.get(); }
- SSLClientSessionCacheOpenSSL* session_cache() { return &session_cache_; }
-
- SSLClientSocketOpenSSL* GetClientSocketFromSSL(const SSL* ssl) {
- DCHECK(ssl);
- SSLClientSocketOpenSSL* socket = static_cast<SSLClientSocketOpenSSL*>(
- SSL_get_ex_data(ssl, ssl_socket_data_index_));
- DCHECK(socket);
- return socket;
- }
-
- bool SetClientSocketForSSL(SSL* ssl, SSLClientSocketOpenSSL* socket) {
- return SSL_set_ex_data(ssl, ssl_socket_data_index_, socket) != 0;
- }
-
-#if !defined(OS_NACL)
- void SetSSLKeyLogFile(
- const base::FilePath& path,
- const scoped_refptr<base::SequencedTaskRunner>& task_runner) {
- DCHECK(!ssl_key_logger_);
- ssl_key_logger_.reset(new SSLKeyLogger(path, task_runner));
- SSL_CTX_set_keylog_callback(ssl_ctx_.get(), KeyLogCallback);
- }
-#endif
-
- static const SSL_PRIVATE_KEY_METHOD kPrivateKeyMethod;
-
- private:
- friend struct base::DefaultSingletonTraits<SSLContext>;
-
- SSLContext() : session_cache_(SSLClientSessionCacheOpenSSL::Config()) {
- crypto::EnsureOpenSSLInit();
- ssl_socket_data_index_ = SSL_get_ex_new_index(0, 0, 0, 0, 0);
- DCHECK_NE(ssl_socket_data_index_, -1);
- ssl_ctx_.reset(SSL_CTX_new(SSLv23_client_method()));
- SSL_CTX_set_cert_verify_callback(ssl_ctx_.get(), CertVerifyCallback, NULL);
- SSL_CTX_set_cert_cb(ssl_ctx_.get(), ClientCertRequestCallback, NULL);
- SSL_CTX_set_verify(ssl_ctx_.get(), SSL_VERIFY_PEER, NULL);
- // This stops |SSL_shutdown| from generating the close_notify message, which
- // is currently not sent on the network.
- // TODO(haavardm): Remove setting quiet shutdown once 118366 is fixed.
- SSL_CTX_set_quiet_shutdown(ssl_ctx_.get(), 1);
- // Note that SSL_OP_DISABLE_NPN is used to disable NPN if
- // ssl_config_.next_proto is empty.
- SSL_CTX_set_next_proto_select_cb(ssl_ctx_.get(), SelectNextProtoCallback,
- NULL);
-
- // Disable the internal session cache. Session caching is handled
- // externally (i.e. by SSLClientSessionCacheOpenSSL).
- SSL_CTX_set_session_cache_mode(
- ssl_ctx_.get(), SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL);
- SSL_CTX_sess_set_new_cb(ssl_ctx_.get(), NewSessionCallback);
-
- if (!SSL_CTX_add_client_custom_ext(ssl_ctx_.get(), kTbExtNum,
- &TokenBindingAddCallback,
- &TokenBindingFreeCallback, nullptr,
- &TokenBindingParseCallback, nullptr)) {
- NOTREACHED();
- }
- }
-
- static int TokenBindingAddCallback(SSL* ssl,
- unsigned int extension_value,
- const uint8_t** out,
- size_t* out_len,
- int* out_alert_value,
- void* add_arg) {
- DCHECK_EQ(extension_value, kTbExtNum);
- SSLClientSocketOpenSSL* socket =
- SSLClientSocketOpenSSL::SSLContext::GetInstance()
- ->GetClientSocketFromSSL(ssl);
- return socket->TokenBindingAdd(out, out_len, out_alert_value);
- }
-
- static void TokenBindingFreeCallback(SSL* ssl,
- unsigned extension_value,
- const uint8_t* out,
- void* add_arg) {
- DCHECK_EQ(extension_value, kTbExtNum);
- OPENSSL_free(const_cast<unsigned char*>(out));
- }
-
- static int TokenBindingParseCallback(SSL* ssl,
- unsigned int extension_value,
- const uint8_t* contents,
- size_t contents_len,
- int* out_alert_value,
- void* parse_arg) {
- DCHECK_EQ(extension_value, kTbExtNum);
- SSLClientSocketOpenSSL* socket =
- SSLClientSocketOpenSSL::SSLContext::GetInstance()
- ->GetClientSocketFromSSL(ssl);
- return socket->TokenBindingParse(contents, contents_len, out_alert_value);
- }
-
- static int ClientCertRequestCallback(SSL* ssl, void* arg) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- DCHECK(socket);
- return socket->ClientCertRequestCallback(ssl);
- }
-
- static int CertVerifyCallback(X509_STORE_CTX *store_ctx, void *arg) {
- SSL* ssl = reinterpret_cast<SSL*>(X509_STORE_CTX_get_ex_data(
- store_ctx, SSL_get_ex_data_X509_STORE_CTX_idx()));
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- CHECK(socket);
-
- return socket->CertVerifyCallback(store_ctx);
- }
-
- static int SelectNextProtoCallback(SSL* ssl,
- unsigned char** out, unsigned char* outlen,
- const unsigned char* in,
- unsigned int inlen, void* arg) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->SelectNextProtoCallback(out, outlen, in, inlen);
- }
-
- static int NewSessionCallback(SSL* ssl, SSL_SESSION* session) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->NewSessionCallback(session);
- }
-
- static int PrivateKeyTypeCallback(SSL* ssl) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->PrivateKeyTypeCallback();
- }
-
- static size_t PrivateKeyMaxSignatureLenCallback(SSL* ssl) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->PrivateKeyMaxSignatureLenCallback();
- }
-
- static ssl_private_key_result_t PrivateKeySignCallback(SSL* ssl,
- uint8_t* out,
- size_t* out_len,
- size_t max_out,
- const EVP_MD* md,
- const uint8_t* in,
- size_t in_len) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->PrivateKeySignCallback(out, out_len, max_out, md, in,
- in_len);
- }
-
- static ssl_private_key_result_t PrivateKeySignCompleteCallback(
- SSL* ssl,
- uint8_t* out,
- size_t* out_len,
- size_t max_out) {
- SSLClientSocketOpenSSL* socket = GetInstance()->GetClientSocketFromSSL(ssl);
- return socket->PrivateKeySignCompleteCallback(out, out_len, max_out);
- }
-
-#if !defined(OS_NACL)
- static void KeyLogCallback(const SSL* ssl, const char* line) {
- GetInstance()->ssl_key_logger_->WriteLine(line);
- }
-#endif
-
- // This is the index used with SSL_get_ex_data to retrieve the owner
- // SSLClientSocketOpenSSL object from an SSL instance.
- int ssl_socket_data_index_;
-
- ScopedSSL_CTX ssl_ctx_;
-
-#if !defined(OS_NACL)
- std::unique_ptr<SSLKeyLogger> ssl_key_logger_;
-#endif
-
- // TODO(davidben): Use a separate cache per URLRequestContext.
- // https://crbug.com/458365
- //
- // TODO(davidben): Sessions should be invalidated on fatal
- // alerts. https://crbug.com/466352
- SSLClientSessionCacheOpenSSL session_cache_;
-};
-
-const SSL_PRIVATE_KEY_METHOD
- SSLClientSocketOpenSSL::SSLContext::kPrivateKeyMethod = {
- &SSLClientSocketOpenSSL::SSLContext::PrivateKeyTypeCallback,
- &SSLClientSocketOpenSSL::SSLContext::PrivateKeyMaxSignatureLenCallback,
- &SSLClientSocketOpenSSL::SSLContext::PrivateKeySignCallback,
- &SSLClientSocketOpenSSL::SSLContext::PrivateKeySignCompleteCallback,
-};
-
-// PeerCertificateChain is a helper object which extracts the certificate
-// chain, as given by the server, from an OpenSSL socket and performs the needed
-// resource management. The first element of the chain is the leaf certificate
-// and the other elements are in the order given by the server.
-class SSLClientSocketOpenSSL::PeerCertificateChain {
- public:
- explicit PeerCertificateChain(STACK_OF(X509)* chain) { Reset(chain); }
- PeerCertificateChain(const PeerCertificateChain& other) { *this = other; }
- ~PeerCertificateChain() {}
- PeerCertificateChain& operator=(const PeerCertificateChain& other);
-
- // Resets the PeerCertificateChain to the set of certificates in|chain|,
- // which may be NULL, indicating to empty the store certificates.
- // Note: If an error occurs, such as being unable to parse the certificates,
- // this will behave as if Reset(NULL) was called.
- void Reset(STACK_OF(X509)* chain);
-
- // Note that when USE_OPENSSL_CERTS is defined, OSCertHandle is X509*
- scoped_refptr<X509Certificate> AsOSChain() const;
-
- size_t size() const {
- if (!openssl_chain_.get())
- return 0;
- return sk_X509_num(openssl_chain_.get());
- }
-
- bool empty() const {
- return size() == 0;
- }
-
- X509* Get(size_t index) const {
- DCHECK_LT(index, size());
- return sk_X509_value(openssl_chain_.get(), index);
- }
-
- private:
- ScopedX509Stack openssl_chain_;
-};
-
-SSLClientSocketOpenSSL::PeerCertificateChain&
-SSLClientSocketOpenSSL::PeerCertificateChain::operator=(
- const PeerCertificateChain& other) {
- if (this == &other)
- return *this;
-
- openssl_chain_.reset(X509_chain_up_ref(other.openssl_chain_.get()));
- return *this;
-}
-
-void SSLClientSocketOpenSSL::PeerCertificateChain::Reset(
- STACK_OF(X509)* chain) {
- openssl_chain_.reset(chain ? X509_chain_up_ref(chain) : NULL);
-}
-
-scoped_refptr<X509Certificate>
-SSLClientSocketOpenSSL::PeerCertificateChain::AsOSChain() const {
-#if defined(USE_OPENSSL_CERTS)
- // When OSCertHandle is typedef'ed to X509, this implementation does a short
- // cut to avoid converting back and forth between DER and the X509 struct.
- X509Certificate::OSCertHandles intermediates;
- for (size_t i = 1; i < sk_X509_num(openssl_chain_.get()); ++i) {
- intermediates.push_back(sk_X509_value(openssl_chain_.get(), i));
- }
-
- return X509Certificate::CreateFromHandle(
- sk_X509_value(openssl_chain_.get(), 0), intermediates);
-#else
- // DER-encode the chain and convert to a platform certificate handle.
- std::vector<base::StringPiece> der_chain;
- for (size_t i = 0; i < sk_X509_num(openssl_chain_.get()); ++i) {
- X509* x = sk_X509_value(openssl_chain_.get(), i);
- base::StringPiece der;
- if (!x509_util::GetDER(x, &der))
- return NULL;
- der_chain.push_back(der);
- }
-
- return X509Certificate::CreateFromDERCertChain(der_chain);
-#endif
-}
-
-// static
-void SSLClientSocket::ClearSessionCache() {
- SSLClientSocketOpenSSL::SSLContext* context =
- SSLClientSocketOpenSSL::SSLContext::GetInstance();
- context->session_cache()->Flush();
-}
-
-SSLClientSocketOpenSSL::SSLClientSocketOpenSSL(
- std::unique_ptr<ClientSocketHandle> transport_socket,
- const HostPortPair& host_and_port,
- const SSLConfig& ssl_config,
- const SSLClientSocketContext& context)
- : transport_send_busy_(false),
- transport_recv_busy_(false),
- pending_read_error_(kNoPendingResult),
- pending_read_ssl_error_(SSL_ERROR_NONE),
- transport_read_error_(OK),
- transport_write_error_(OK),
- server_cert_chain_(new PeerCertificateChain(NULL)),
- completed_connect_(false),
- was_ever_used_(false),
- cert_verifier_(context.cert_verifier),
- cert_transparency_verifier_(context.cert_transparency_verifier),
- channel_id_service_(context.channel_id_service),
- tb_was_negotiated_(false),
- tb_negotiated_param_(TB_PARAM_ECDSAP256),
- tb_signed_ekm_map_(10),
- ssl_(NULL),
- transport_bio_(NULL),
- transport_(std::move(transport_socket)),
- host_and_port_(host_and_port),
- ssl_config_(ssl_config),
- ssl_session_cache_shard_(context.ssl_session_cache_shard),
- next_handshake_state_(STATE_NONE),
- disconnected_(false),
- npn_status_(kNextProtoUnsupported),
- channel_id_sent_(false),
- session_pending_(false),
- certificate_verified_(false),
- ssl_failure_state_(SSL_FAILURE_NONE),
- signature_result_(kNoPendingResult),
- transport_security_state_(context.transport_security_state),
- policy_enforcer_(context.ct_policy_enforcer),
- net_log_(transport_->socket()->NetLog()),
- weak_factory_(this) {
- DCHECK(cert_verifier_);
-}
-
-SSLClientSocketOpenSSL::~SSLClientSocketOpenSSL() {
- Disconnect();
-}
-
-#if !defined(OS_NACL)
-void SSLClientSocketOpenSSL::SetSSLKeyLogFile(
- const base::FilePath& ssl_keylog_file,
- const scoped_refptr<base::SequencedTaskRunner>& task_runner) {
- SSLContext::GetInstance()->SetSSLKeyLogFile(ssl_keylog_file, task_runner);
-}
-#endif
-
-void SSLClientSocketOpenSSL::GetSSLCertRequestInfo(
- SSLCertRequestInfo* cert_request_info) {
- cert_request_info->host_and_port = host_and_port_;
- cert_request_info->cert_authorities = cert_authorities_;
- cert_request_info->cert_key_types = cert_key_types_;
-}
-
-SSLClientSocket::NextProtoStatus SSLClientSocketOpenSSL::GetNextProto(
- std::string* proto) const {
- *proto = npn_proto_;
- return npn_status_;
-}
-
-ChannelIDService*
-SSLClientSocketOpenSSL::GetChannelIDService() const {
- return channel_id_service_;
-}
-
-Error SSLClientSocketOpenSSL::GetSignedEKMForTokenBinding(
- crypto::ECPrivateKey* key,
- std::vector<uint8_t>* out) {
- // The same key will be used across multiple requests to sign the same value,
- // so the signature is cached.
- std::string raw_public_key;
- if (!key->ExportRawPublicKey(&raw_public_key))
- return ERR_FAILED;
- SignedEkmMap::iterator it = tb_signed_ekm_map_.Get(raw_public_key);
- if (it != tb_signed_ekm_map_.end()) {
- *out = it->second;
- return OK;
- }
-
- uint8_t tb_ekm_buf[32];
- static const char kTokenBindingExporterLabel[] = "EXPORTER-Token-Binding";
- if (!SSL_export_keying_material(ssl_, tb_ekm_buf, sizeof(tb_ekm_buf),
- kTokenBindingExporterLabel,
- strlen(kTokenBindingExporterLabel), nullptr,
- 0, false /* no context */)) {
- return ERR_FAILED;
- }
-
- if (!SignTokenBindingEkm(
- base::StringPiece(reinterpret_cast<char*>(tb_ekm_buf),
- sizeof(tb_ekm_buf)),
- key, out))
- return ERR_FAILED;
-
- tb_signed_ekm_map_.Put(raw_public_key, *out);
- return OK;
-}
-
-crypto::ECPrivateKey* SSLClientSocketOpenSSL::GetChannelIDKey() const {
- return channel_id_key_.get();
-}
-
-SSLFailureState SSLClientSocketOpenSSL::GetSSLFailureState() const {
- return ssl_failure_state_;
-}
-
-int SSLClientSocketOpenSSL::ExportKeyingMaterial(
- const base::StringPiece& label,
- bool has_context, const base::StringPiece& context,
- unsigned char* out, unsigned int outlen) {
- if (!IsConnected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-
- int rv = SSL_export_keying_material(
- ssl_, out, outlen, label.data(), label.size(),
- reinterpret_cast<const unsigned char*>(context.data()), context.length(),
- has_context ? 1 : 0);
-
- if (rv != 1) {
- int ssl_error = SSL_get_error(ssl_, rv);
- LOG(ERROR) << "Failed to export keying material;"
- << " returned " << rv
- << ", SSL error code " << ssl_error;
- return MapOpenSSLError(ssl_error, err_tracer);
- }
- return OK;
-}
-
-int SSLClientSocketOpenSSL::Connect(const CompletionCallback& callback) {
- // It is an error to create an SSLClientSocket whose context has no
- // TransportSecurityState.
- DCHECK(transport_security_state_);
-
- // Although StreamSocket does allow calling Connect() after Disconnect(),
- // this has never worked for layered sockets. CHECK to detect any consumers
- // reconnecting an SSL socket.
- //
- // TODO(davidben,mmenke): Remove this API feature. See
- // https://crbug.com/499289.
- CHECK(!disconnected_);
-
- net_log_.BeginEvent(NetLog::TYPE_SSL_CONNECT);
-
- // Set up new ssl object.
- int rv = Init();
- if (rv != OK) {
- net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_CONNECT, rv);
- return rv;
- }
-
- // Set SSL to client mode. Handshake happens in the loop below.
- SSL_set_connect_state(ssl_);
-
- GotoState(STATE_HANDSHAKE);
- rv = DoHandshakeLoop(OK);
- if (rv == ERR_IO_PENDING) {
- user_connect_callback_ = callback;
- } else {
- net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_CONNECT, rv);
- }
-
- return rv > OK ? OK : rv;
-}
-
-void SSLClientSocketOpenSSL::Disconnect() {
- crypto::OpenSSLErrStackTracer tracer(FROM_HERE);
-
- if (ssl_) {
- // Calling SSL_shutdown prevents the session from being marked as
- // unresumable.
- SSL_shutdown(ssl_);
- SSL_free(ssl_);
- ssl_ = NULL;
- }
- if (transport_bio_) {
- BIO_free_all(transport_bio_);
- transport_bio_ = NULL;
- }
-
- disconnected_ = true;
-
- // Shut down anything that may call us back.
- cert_verifier_request_.reset();
- transport_->socket()->Disconnect();
-
- // Null all callbacks, delete all buffers.
- transport_send_busy_ = false;
- send_buffer_ = NULL;
- transport_recv_busy_ = false;
- recv_buffer_ = NULL;
-
- user_connect_callback_.Reset();
- user_read_callback_.Reset();
- user_write_callback_.Reset();
- user_read_buf_ = NULL;
- user_read_buf_len_ = 0;
- user_write_buf_ = NULL;
- user_write_buf_len_ = 0;
-
- pending_read_error_ = kNoPendingResult;
- pending_read_ssl_error_ = SSL_ERROR_NONE;
- pending_read_error_info_ = OpenSSLErrorInfo();
-
- transport_read_error_ = OK;
- transport_write_error_ = OK;
-
- server_cert_verify_result_.Reset();
- completed_connect_ = false;
-
- cert_authorities_.clear();
- cert_key_types_.clear();
-
- start_cert_verification_time_ = base::TimeTicks();
-
- npn_status_ = kNextProtoUnsupported;
- npn_proto_.clear();
-
- channel_id_sent_ = false;
- tb_was_negotiated_ = false;
- session_pending_ = false;
- certificate_verified_ = false;
- channel_id_request_.Cancel();
- ssl_failure_state_ = SSL_FAILURE_NONE;
-
- signature_result_ = kNoPendingResult;
- signature_.clear();
-}
-
-bool SSLClientSocketOpenSSL::IsConnected() const {
- // If the handshake has not yet completed.
- if (!completed_connect_)
- return false;
- // If an asynchronous operation is still pending.
- if (user_read_buf_.get() || user_write_buf_.get())
- return true;
-
- return transport_->socket()->IsConnected();
-}
-
-bool SSLClientSocketOpenSSL::IsConnectedAndIdle() const {
- // If the handshake has not yet completed.
- if (!completed_connect_)
- return false;
- // If an asynchronous operation is still pending.
- if (user_read_buf_.get() || user_write_buf_.get())
- return false;
-
- // If there is data read from the network that has not yet been consumed, do
- // not treat the connection as idle.
- //
- // Note that this does not check |BIO_pending|, whether there is ciphertext
- // that has not yet been flushed to the network. |Write| returns early, so
- // this can cause race conditions which cause a socket to not be treated
- // reusable when it should be. See https://crbug.com/466147.
- if (BIO_wpending(transport_bio_) > 0)
- return false;
-
- return transport_->socket()->IsConnectedAndIdle();
-}
-
-int SSLClientSocketOpenSSL::GetPeerAddress(IPEndPoint* addressList) const {
- return transport_->socket()->GetPeerAddress(addressList);
-}
-
-int SSLClientSocketOpenSSL::GetLocalAddress(IPEndPoint* addressList) const {
- return transport_->socket()->GetLocalAddress(addressList);
-}
-
-const BoundNetLog& SSLClientSocketOpenSSL::NetLog() const {
- return net_log_;
-}
-
-void SSLClientSocketOpenSSL::SetSubresourceSpeculation() {
- if (transport_.get() && transport_->socket()) {
- transport_->socket()->SetSubresourceSpeculation();
- } else {
- NOTREACHED();
- }
-}
-
-void SSLClientSocketOpenSSL::SetOmniboxSpeculation() {
- if (transport_.get() && transport_->socket()) {
- transport_->socket()->SetOmniboxSpeculation();
- } else {
- NOTREACHED();
- }
-}
-
-bool SSLClientSocketOpenSSL::WasEverUsed() const {
- return was_ever_used_;
-}
-
-bool SSLClientSocketOpenSSL::GetSSLInfo(SSLInfo* ssl_info) {
- ssl_info->Reset();
- if (server_cert_chain_->empty())
- return false;
-
- ssl_info->cert = server_cert_verify_result_.verified_cert;
- ssl_info->unverified_cert = server_cert_;
- ssl_info->cert_status = server_cert_verify_result_.cert_status;
- ssl_info->is_issued_by_known_root =
- server_cert_verify_result_.is_issued_by_known_root;
- ssl_info->public_key_hashes =
- server_cert_verify_result_.public_key_hashes;
- ssl_info->client_cert_sent =
- ssl_config_.send_client_cert && ssl_config_.client_cert.get();
- ssl_info->channel_id_sent = channel_id_sent_;
- ssl_info->token_binding_negotiated = tb_was_negotiated_;
- ssl_info->token_binding_key_param = tb_negotiated_param_;
- ssl_info->pinning_failure_log = pinning_failure_log_;
-
- AddCTInfoToSSLInfo(ssl_info);
-
- const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl_);
- CHECK(cipher);
- ssl_info->security_bits = SSL_CIPHER_get_bits(cipher, NULL);
- ssl_info->key_exchange_info =
- SSL_SESSION_get_key_exchange_info(SSL_get_session(ssl_));
-
- SSLConnectionStatusSetCipherSuite(
- static_cast<uint16_t>(SSL_CIPHER_get_id(cipher)),
- &ssl_info->connection_status);
- SSLConnectionStatusSetVersion(GetNetSSLVersion(ssl_),
- &ssl_info->connection_status);
-
- if (!SSL_get_secure_renegotiation_support(ssl_))
- ssl_info->connection_status |= SSL_CONNECTION_NO_RENEGOTIATION_EXTENSION;
-
- if (ssl_config_.version_fallback)
- ssl_info->connection_status |= SSL_CONNECTION_VERSION_FALLBACK;
-
- ssl_info->handshake_type = SSL_session_reused(ssl_) ?
- SSLInfo::HANDSHAKE_RESUME : SSLInfo::HANDSHAKE_FULL;
-
- DVLOG(3) << "Encoded connection status: cipher suite = "
- << SSLConnectionStatusToCipherSuite(ssl_info->connection_status)
- << " version = "
- << SSLConnectionStatusToVersion(ssl_info->connection_status);
- return true;
-}
-
-void SSLClientSocketOpenSSL::GetConnectionAttempts(
- ConnectionAttempts* out) const {
- out->clear();
-}
-
-int64_t SSLClientSocketOpenSSL::GetTotalReceivedBytes() const {
- return transport_->socket()->GetTotalReceivedBytes();
-}
-
-int SSLClientSocketOpenSSL::Read(IOBuffer* buf,
- int buf_len,
- const CompletionCallback& callback) {
- user_read_buf_ = buf;
- user_read_buf_len_ = buf_len;
-
- int rv = DoReadLoop();
-
- if (rv == ERR_IO_PENDING) {
- user_read_callback_ = callback;
- } else {
- if (rv > 0)
- was_ever_used_ = true;
- user_read_buf_ = NULL;
- user_read_buf_len_ = 0;
- }
-
- return rv;
-}
-
-int SSLClientSocketOpenSSL::Write(IOBuffer* buf,
- int buf_len,
- const CompletionCallback& callback) {
- user_write_buf_ = buf;
- user_write_buf_len_ = buf_len;
-
- int rv = DoWriteLoop();
-
- if (rv == ERR_IO_PENDING) {
- user_write_callback_ = callback;
- } else {
- if (rv > 0)
- was_ever_used_ = true;
- user_write_buf_ = NULL;
- user_write_buf_len_ = 0;
- }
-
- return rv;
-}
-
-int SSLClientSocketOpenSSL::SetReceiveBufferSize(int32_t size) {
- return transport_->socket()->SetReceiveBufferSize(size);
-}
-
-int SSLClientSocketOpenSSL::SetSendBufferSize(int32_t size) {
- return transport_->socket()->SetSendBufferSize(size);
-}
-
-int SSLClientSocketOpenSSL::Init() {
- DCHECK(!ssl_);
- DCHECK(!transport_bio_);
-
-#if defined(USE_NSS_CERTS)
- if (ssl_config_.cert_io_enabled) {
- // TODO(davidben): Move this out of SSLClientSocket. See
- // https://crbug.com/539520.
- EnsureNSSHttpIOInit();
- }
-#endif
-
- SSLContext* context = SSLContext::GetInstance();
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-
- ssl_ = SSL_new(context->ssl_ctx());
- if (!ssl_ || !context->SetClientSocketForSSL(ssl_, this))
- return ERR_UNEXPECTED;
-
- // SNI should only contain valid DNS hostnames, not IP addresses (see RFC
- // 6066, Section 3).
- //
- // TODO(rsleevi): Should this code allow hostnames that violate the LDH rule?
- // See https://crbug.com/496472 and https://crbug.com/496468 for discussion.
- IPAddress unused;
- if (!unused.AssignFromIPLiteral(host_and_port_.host()) &&
- !SSL_set_tlsext_host_name(ssl_, host_and_port_.host().c_str())) {
- return ERR_UNEXPECTED;
- }
-
- ScopedSSL_SESSION session =
- context->session_cache()->Lookup(GetSessionCacheKey());
- if (session)
- SSL_set_session(ssl_, session.get());
-
- send_buffer_ = new GrowableIOBuffer();
- send_buffer_->SetCapacity(KDefaultOpenSSLBufferSize);
- recv_buffer_ = new GrowableIOBuffer();
- recv_buffer_->SetCapacity(KDefaultOpenSSLBufferSize);
-
- BIO* ssl_bio = NULL;
-
- // SSLClientSocketOpenSSL retains ownership of the BIO buffers.
- if (!BIO_new_bio_pair_external_buf(
- &ssl_bio, send_buffer_->capacity(),
- reinterpret_cast<uint8_t*>(send_buffer_->data()), &transport_bio_,
- recv_buffer_->capacity(),
- reinterpret_cast<uint8_t*>(recv_buffer_->data())))
- return ERR_UNEXPECTED;
- DCHECK(ssl_bio);
- DCHECK(transport_bio_);
-
- // Install a callback on OpenSSL's end to plumb transport errors through.
- BIO_set_callback(ssl_bio, &SSLClientSocketOpenSSL::BIOCallback);
- BIO_set_callback_arg(ssl_bio, reinterpret_cast<char*>(this));
-
- SSL_set_bio(ssl_, ssl_bio, ssl_bio);
-
- DCHECK_LT(SSL3_VERSION, ssl_config_.version_min);
- DCHECK_LT(SSL3_VERSION, ssl_config_.version_max);
- SSL_set_min_version(ssl_, ssl_config_.version_min);
- SSL_set_max_version(ssl_, ssl_config_.version_max);
-
- // OpenSSL defaults some options to on, others to off. To avoid ambiguity,
- // set everything we care about to an absolute value.
- SslSetClearMask options;
- options.ConfigureFlag(SSL_OP_NO_COMPRESSION, true);
-
- // TODO(joth): Set this conditionally, see http://crbug.com/55410
- options.ConfigureFlag(SSL_OP_LEGACY_SERVER_CONNECT, true);
-
- SSL_set_options(ssl_, options.set_mask);
- SSL_clear_options(ssl_, options.clear_mask);
-
- // Same as above, this time for the SSL mode.
- SslSetClearMask mode;
-
- mode.ConfigureFlag(SSL_MODE_RELEASE_BUFFERS, true);
- mode.ConfigureFlag(SSL_MODE_CBC_RECORD_SPLITTING, true);
-
- mode.ConfigureFlag(SSL_MODE_ENABLE_FALSE_START,
- ssl_config_.false_start_enabled);
-
- mode.ConfigureFlag(SSL_MODE_SEND_FALLBACK_SCSV, ssl_config_.version_fallback);
-
- SSL_set_mode(ssl_, mode.set_mask);
- SSL_clear_mode(ssl_, mode.clear_mask);
-
- // Use BoringSSL defaults, but disable HMAC-SHA256 and HMAC-SHA384 ciphers
- // (note that SHA256 and SHA384 only select legacy CBC ciphers). Also disable
- // DHE_RSA_WITH_AES_256_GCM_SHA384. Historically, AES_256_GCM was not
- // supported. As DHE is being deprecated, don't add a cipher only to remove it
- // immediately.
- std::string command(
- "DEFAULT:!SHA256:!SHA384:!DHE-RSA-AES256-GCM-SHA384:!aPSK");
-
- if (ssl_config_.require_ecdhe)
- command.append(":!kRSA:!kDHE");
-
- if (!(ssl_config_.rc4_enabled &&
- ssl_config_.deprecated_cipher_suites_enabled)) {
- command.append(":!RC4");
- }
-
- if (!ssl_config_.deprecated_cipher_suites_enabled) {
- // Only offer DHE on the second handshake. https://crbug.com/538690
- command.append(":!kDHE");
- }
-
- // Remove any disabled ciphers.
- for (uint16_t id : ssl_config_.disabled_cipher_suites) {
- const SSL_CIPHER* cipher = SSL_get_cipher_by_value(id);
- if (cipher) {
- command.append(":!");
- command.append(SSL_CIPHER_get_name(cipher));
- }
- }
-
- int rv = SSL_set_cipher_list(ssl_, command.c_str());
- // If this fails (rv = 0) it means there are no ciphers enabled on this SSL.
- // This will almost certainly result in the socket failing to complete the
- // handshake at which point the appropriate error is bubbled up to the client.
- LOG_IF(WARNING, rv != 1) << "SSL_set_cipher_list('" << command << "') "
- "returned " << rv;
-
- // TLS channel ids.
- if (IsChannelIDEnabled(ssl_config_, channel_id_service_)) {
- SSL_enable_tls_channel_id(ssl_);
- }
-
- if (!ssl_config_.alpn_protos.empty()) {
- // Get list of ciphers that are enabled.
- STACK_OF(SSL_CIPHER)* enabled_ciphers = SSL_get_ciphers(ssl_);
- DCHECK(enabled_ciphers);
- std::vector<uint16_t> enabled_ciphers_vector;
- for (size_t i = 0; i < sk_SSL_CIPHER_num(enabled_ciphers); ++i) {
- const SSL_CIPHER* cipher = sk_SSL_CIPHER_value(enabled_ciphers, i);
- const uint16_t id = static_cast<uint16_t>(SSL_CIPHER_get_id(cipher));
- enabled_ciphers_vector.push_back(id);
- }
-
- NextProtoVector alpn_protos = ssl_config_.alpn_protos;
- if (!HasCipherAdequateForHTTP2(enabled_ciphers_vector) ||
- !IsTLSVersionAdequateForHTTP2(ssl_config_)) {
- DisableHTTP2(&alpn_protos);
- }
- std::vector<uint8_t> wire_protos = SerializeNextProtos(alpn_protos);
- SSL_set_alpn_protos(ssl_, wire_protos.empty() ? NULL : &wire_protos[0],
- wire_protos.size());
- }
-
- if (ssl_config_.npn_protos.empty())
- SSL_set_options(ssl_, SSL_OP_DISABLE_NPN);
-
- if (ssl_config_.signed_cert_timestamps_enabled) {
- SSL_enable_signed_cert_timestamps(ssl_);
- SSL_enable_ocsp_stapling(ssl_);
- }
-
- if (cert_verifier_->SupportsOCSPStapling())
- SSL_enable_ocsp_stapling(ssl_);
-
- return OK;
-}
-
-void SSLClientSocketOpenSSL::DoReadCallback(int rv) {
- // Since Run may result in Read being called, clear |user_read_callback_|
- // up front.
- if (rv > 0)
- was_ever_used_ = true;
- user_read_buf_ = NULL;
- user_read_buf_len_ = 0;
- base::ResetAndReturn(&user_read_callback_).Run(rv);
-}
-
-void SSLClientSocketOpenSSL::DoWriteCallback(int rv) {
- // Since Run may result in Write being called, clear |user_write_callback_|
- // up front.
- if (rv > 0)
- was_ever_used_ = true;
- user_write_buf_ = NULL;
- user_write_buf_len_ = 0;
- base::ResetAndReturn(&user_write_callback_).Run(rv);
-}
-
-bool SSLClientSocketOpenSSL::DoTransportIO() {
- bool network_moved = false;
- int rv;
- // Read and write as much data as possible. The loop is necessary because
- // Write() may return synchronously.
- do {
- rv = BufferSend();
- if (rv != ERR_IO_PENDING && rv != 0)
- network_moved = true;
- } while (rv > 0);
- if (transport_read_error_ == OK && BufferRecv() != ERR_IO_PENDING)
- network_moved = true;
- return network_moved;
-}
-
-// TODO(cbentzel): Remove including "base/threading/thread_local.h" and
-// g_first_run_completed once crbug.com/424386 is fixed.
-base::LazyInstance<base::ThreadLocalBoolean>::Leaky g_first_run_completed =
- LAZY_INSTANCE_INITIALIZER;
-
-int SSLClientSocketOpenSSL::DoHandshake() {
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-
- int rv;
-
- // TODO(cbentzel): Leave only 1 call to SSL_do_handshake once crbug.com/424386
- // is fixed.
- if (ssl_config_.send_client_cert && ssl_config_.client_cert.get()) {
- rv = SSL_do_handshake(ssl_);
- } else {
- if (g_first_run_completed.Get().Get()) {
- // TODO(cbentzel): Remove ScopedTracker below once crbug.com/424386 is
- // fixed.
- tracked_objects::ScopedTracker tracking_profile(
- FROM_HERE_WITH_EXPLICIT_FUNCTION("424386 SSL_do_handshake()"));
-
- rv = SSL_do_handshake(ssl_);
- } else {
- g_first_run_completed.Get().Set(true);
- rv = SSL_do_handshake(ssl_);
- }
- }
-
- int net_error = OK;
- if (rv <= 0) {
- int ssl_error = SSL_get_error(ssl_, rv);
- if (ssl_error == SSL_ERROR_WANT_CHANNEL_ID_LOOKUP) {
- // The server supports channel ID. Stop to look one up before returning to
- // the handshake.
- GotoState(STATE_CHANNEL_ID_LOOKUP);
- return OK;
- }
- if (ssl_error == SSL_ERROR_WANT_X509_LOOKUP &&
- !ssl_config_.send_client_cert) {
- return ERR_SSL_CLIENT_AUTH_CERT_NEEDED;
- }
- if (ssl_error == SSL_ERROR_WANT_PRIVATE_KEY_OPERATION) {
- DCHECK(ssl_config_.client_private_key);
- DCHECK_NE(kNoPendingResult, signature_result_);
- GotoState(STATE_HANDSHAKE);
- return ERR_IO_PENDING;
- }
-
- OpenSSLErrorInfo error_info;
- net_error = MapOpenSSLErrorWithDetails(ssl_error, err_tracer, &error_info);
- if (net_error == ERR_IO_PENDING) {
- // If not done, stay in this state
- GotoState(STATE_HANDSHAKE);
- return ERR_IO_PENDING;
- }
-
- LOG(ERROR) << "handshake failed; returned " << rv << ", SSL error code "
- << ssl_error << ", net_error " << net_error;
- net_log_.AddEvent(
- NetLog::TYPE_SSL_HANDSHAKE_ERROR,
- CreateNetLogOpenSSLErrorCallback(net_error, ssl_error, error_info));
-
- // Classify the handshake failure. This is used to determine causes of the
- // TLS version fallback.
-
- // |cipher| is the current outgoing cipher suite, so it is non-null iff
- // ChangeCipherSpec was sent.
- const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl_);
- if (SSL_get_state(ssl_) == SSL3_ST_CR_SRVR_HELLO_A) {
- ssl_failure_state_ = SSL_FAILURE_CLIENT_HELLO;
- } else if (cipher && (SSL_CIPHER_get_id(cipher) ==
- TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256 ||
- SSL_CIPHER_get_id(cipher) ==
- TLS1_CK_RSA_WITH_AES_128_GCM_SHA256)) {
- ssl_failure_state_ = SSL_FAILURE_BUGGY_GCM;
- } else if (cipher && ssl_config_.send_client_cert) {
- ssl_failure_state_ = SSL_FAILURE_CLIENT_AUTH;
- } else if (ERR_GET_LIB(error_info.error_code) == ERR_LIB_SSL &&
- ERR_GET_REASON(error_info.error_code) ==
- SSL_R_OLD_SESSION_VERSION_NOT_RETURNED) {
- ssl_failure_state_ = SSL_FAILURE_SESSION_MISMATCH;
- } else if (cipher && npn_status_ != kNextProtoUnsupported) {
- ssl_failure_state_ = SSL_FAILURE_NEXT_PROTO;
- } else {
- ssl_failure_state_ = SSL_FAILURE_UNKNOWN;
- }
- }
-
- GotoState(STATE_HANDSHAKE_COMPLETE);
- return net_error;
-}
-
-int SSLClientSocketOpenSSL::DoHandshakeComplete(int result) {
- if (result < 0)
- return result;
-
- if (ssl_config_.version_fallback &&
- ssl_config_.version_max < ssl_config_.version_fallback_min) {
- return ERR_SSL_FALLBACK_BEYOND_MINIMUM_VERSION;
- }
-
- // Check that if token binding was negotiated, then extended master secret
- // must also be negotiated.
- if (tb_was_negotiated_ && !SSL_get_extms_support(ssl_))
- return ERR_SSL_PROTOCOL_ERROR;
-
- // SSL handshake is completed. If NPN wasn't negotiated, see if ALPN was.
- if (npn_status_ == kNextProtoUnsupported) {
- const uint8_t* alpn_proto = NULL;
- unsigned alpn_len = 0;
- SSL_get0_alpn_selected(ssl_, &alpn_proto, &alpn_len);
- if (alpn_len > 0) {
- npn_proto_.assign(reinterpret_cast<const char*>(alpn_proto), alpn_len);
- npn_status_ = kNextProtoNegotiated;
- set_negotiation_extension(kExtensionALPN);
- }
- }
-
- RecordNegotiationExtension();
- RecordChannelIDSupport(channel_id_service_, channel_id_sent_,
- ssl_config_.channel_id_enabled);
-
- // Only record OCSP histograms if OCSP was requested.
- if (ssl_config_.signed_cert_timestamps_enabled ||
- cert_verifier_->SupportsOCSPStapling()) {
- const uint8_t* ocsp_response;
- size_t ocsp_response_len;
- SSL_get0_ocsp_response(ssl_, &ocsp_response, &ocsp_response_len);
-
- set_stapled_ocsp_response_received(ocsp_response_len != 0);
- UMA_HISTOGRAM_BOOLEAN("Net.OCSPResponseStapled", ocsp_response_len != 0);
- }
-
- const uint8_t* sct_list;
- size_t sct_list_len;
- SSL_get0_signed_cert_timestamp_list(ssl_, &sct_list, &sct_list_len);
- set_signed_cert_timestamps_received(sct_list_len != 0);
-
- if (IsRenegotiationAllowed())
- SSL_set_renegotiate_mode(ssl_, ssl_renegotiate_freely);
-
- uint8_t server_key_exchange_hash = SSL_get_server_key_exchange_hash(ssl_);
- if (server_key_exchange_hash != TLSEXT_hash_none) {
- UMA_HISTOGRAM_SPARSE_SLOWLY("Net.SSLServerKeyExchangeHash",
- server_key_exchange_hash);
- }
-
- // Verify the certificate.
- UpdateServerCert();
- GotoState(STATE_VERIFY_CERT);
- return OK;
-}
-
-int SSLClientSocketOpenSSL::DoChannelIDLookup() {
- NetLog::ParametersCallback callback = base::Bind(
- &NetLogChannelIDLookupCallback, base::Unretained(channel_id_service_));
- net_log_.BeginEvent(NetLog::TYPE_SSL_GET_CHANNEL_ID, callback);
- GotoState(STATE_CHANNEL_ID_LOOKUP_COMPLETE);
- return channel_id_service_->GetOrCreateChannelID(
- host_and_port_.host(), &channel_id_key_,
- base::Bind(&SSLClientSocketOpenSSL::OnHandshakeIOComplete,
- base::Unretained(this)),
- &channel_id_request_);
-}
-
-int SSLClientSocketOpenSSL::DoChannelIDLookupComplete(int result) {
- net_log_.EndEvent(NetLog::TYPE_SSL_GET_CHANNEL_ID,
- base::Bind(&NetLogChannelIDLookupCompleteCallback,
- channel_id_key_.get(), result));
- if (result < 0)
- return result;
-
- // Hand the key to OpenSSL. Check for error in case OpenSSL rejects the key
- // type.
- DCHECK(channel_id_key_);
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
- int rv = SSL_set1_tls_channel_id(ssl_, channel_id_key_->key());
- if (!rv) {
- LOG(ERROR) << "Failed to set Channel ID.";
- int err = SSL_get_error(ssl_, rv);
- return MapOpenSSLError(err, err_tracer);
- }
-
- // Return to the handshake.
- channel_id_sent_ = true;
- GotoState(STATE_HANDSHAKE);
- return OK;
-}
-
-int SSLClientSocketOpenSSL::DoVerifyCert(int result) {
- DCHECK(!server_cert_chain_->empty());
- DCHECK(start_cert_verification_time_.is_null());
-
- GotoState(STATE_VERIFY_CERT_COMPLETE);
-
- // OpenSSL decoded the certificate, but the platform certificate
- // implementation could not. This is treated as a fatal SSL-level protocol
- // error rather than a certificate error. See https://crbug.com/91341.
- if (!server_cert_.get())
- return ERR_SSL_SERVER_CERT_BAD_FORMAT;
-
- // If the certificate is bad and has been previously accepted, use
- // the previous status and bypass the error.
- base::StringPiece der_cert;
- if (!x509_util::GetDER(server_cert_chain_->Get(0), &der_cert)) {
- NOTREACHED();
- return ERR_CERT_INVALID;
- }
- CertStatus cert_status;
- if (ssl_config_.IsAllowedBadCert(der_cert, &cert_status)) {
- VLOG(1) << "Received an expected bad cert with status: " << cert_status;
- server_cert_verify_result_.Reset();
- server_cert_verify_result_.cert_status = cert_status;
- server_cert_verify_result_.verified_cert = server_cert_;
- return OK;
- }
-
- std::string ocsp_response;
- if (cert_verifier_->SupportsOCSPStapling()) {
- const uint8_t* ocsp_response_raw;
- size_t ocsp_response_len;
- SSL_get0_ocsp_response(ssl_, &ocsp_response_raw, &ocsp_response_len);
- ocsp_response.assign(reinterpret_cast<const char*>(ocsp_response_raw),
- ocsp_response_len);
- }
-
- start_cert_verification_time_ = base::TimeTicks::Now();
-
- return cert_verifier_->Verify(
- server_cert_.get(), host_and_port_.host(), ocsp_response,
- ssl_config_.GetCertVerifyFlags(),
- // TODO(davidben): Route the CRLSet through SSLConfig so
- // SSLClientSocket doesn't depend on SSLConfigService.
- SSLConfigService::GetCRLSet().get(), &server_cert_verify_result_,
- base::Bind(&SSLClientSocketOpenSSL::OnHandshakeIOComplete,
- base::Unretained(this)),
- &cert_verifier_request_, net_log_);
-}
-
-int SSLClientSocketOpenSSL::DoVerifyCertComplete(int result) {
- cert_verifier_request_.reset();
-
- if (!start_cert_verification_time_.is_null()) {
- base::TimeDelta verify_time =
- base::TimeTicks::Now() - start_cert_verification_time_;
- if (result == OK) {
- UMA_HISTOGRAM_TIMES("Net.SSLCertVerificationTime", verify_time);
- } else {
- UMA_HISTOGRAM_TIMES("Net.SSLCertVerificationTimeError", verify_time);
- }
- }
-
- const CertStatus cert_status = server_cert_verify_result_.cert_status;
- if (transport_security_state_ &&
- (result == OK ||
- (IsCertificateError(result) && IsCertStatusMinorError(cert_status))) &&
- !transport_security_state_->CheckPublicKeyPins(
- host_and_port_, server_cert_verify_result_.is_issued_by_known_root,
- server_cert_verify_result_.public_key_hashes, server_cert_.get(),
- server_cert_verify_result_.verified_cert.get(),
- TransportSecurityState::ENABLE_PIN_REPORTS, &pinning_failure_log_)) {
- result = ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN;
- }
-
- if (result == OK) {
- // Only check Certificate Transparency if there were no other errors with
- // the connection.
- VerifyCT();
-
- DCHECK(!certificate_verified_);
- certificate_verified_ = true;
- MaybeCacheSession();
- } else {
- DVLOG(1) << "DoVerifyCertComplete error " << ErrorToString(result)
- << " (" << result << ")";
- }
-
- completed_connect_ = true;
- // Exit DoHandshakeLoop and return the result to the caller to Connect.
- DCHECK_EQ(STATE_NONE, next_handshake_state_);
- return result;
-}
-
-void SSLClientSocketOpenSSL::DoConnectCallback(int rv) {
- if (!user_connect_callback_.is_null()) {
- CompletionCallback c = user_connect_callback_;
- user_connect_callback_.Reset();
- c.Run(rv > OK ? OK : rv);
- }
-}
-
-void SSLClientSocketOpenSSL::UpdateServerCert() {
- server_cert_chain_->Reset(SSL_get_peer_cert_chain(ssl_));
- server_cert_ = server_cert_chain_->AsOSChain();
- if (server_cert_.get()) {
- net_log_.AddEvent(
- NetLog::TYPE_SSL_CERTIFICATES_RECEIVED,
- base::Bind(&NetLogX509CertificateCallback,
- base::Unretained(server_cert_.get())));
- }
-}
-
-void SSLClientSocketOpenSSL::VerifyCT() {
- if (!cert_transparency_verifier_)
- return;
-
- const uint8_t* ocsp_response_raw;
- size_t ocsp_response_len;
- SSL_get0_ocsp_response(ssl_, &ocsp_response_raw, &ocsp_response_len);
- std::string ocsp_response;
- if (ocsp_response_len > 0) {
- ocsp_response.assign(reinterpret_cast<const char*>(ocsp_response_raw),
- ocsp_response_len);
- }
-
- const uint8_t* sct_list_raw;
- size_t sct_list_len;
- SSL_get0_signed_cert_timestamp_list(ssl_, &sct_list_raw, &sct_list_len);
- std::string sct_list;
- if (sct_list_len > 0)
- sct_list.assign(reinterpret_cast<const char*>(sct_list_raw), sct_list_len);
-
- // Note that this is a completely synchronous operation: The CT Log Verifier
- // gets all the data it needs for SCT verification and does not do any
- // external communication.
- cert_transparency_verifier_->Verify(
- server_cert_verify_result_.verified_cert.get(), ocsp_response, sct_list,
- &ct_verify_result_, net_log_);
-
- ct_verify_result_.ct_policies_applied = (policy_enforcer_ != nullptr);
- ct_verify_result_.ev_policy_compliance =
- ct::EVPolicyCompliance::EV_POLICY_DOES_NOT_APPLY;
- if (policy_enforcer_) {
- if ((server_cert_verify_result_.cert_status & CERT_STATUS_IS_EV)) {
- scoped_refptr<ct::EVCertsWhitelist> ev_whitelist =
- SSLConfigService::GetEVCertsWhitelist();
- ct::EVPolicyCompliance ev_policy_compliance =
- policy_enforcer_->DoesConformToCTEVPolicy(
- server_cert_verify_result_.verified_cert.get(),
- ev_whitelist.get(), ct_verify_result_.verified_scts, net_log_);
- ct_verify_result_.ev_policy_compliance = ev_policy_compliance;
- if (ev_policy_compliance !=
- ct::EVPolicyCompliance::EV_POLICY_DOES_NOT_APPLY &&
- ev_policy_compliance !=
- ct::EVPolicyCompliance::EV_POLICY_COMPLIES_VIA_WHITELIST &&
- ev_policy_compliance !=
- ct::EVPolicyCompliance::EV_POLICY_COMPLIES_VIA_SCTS) {
- // TODO(eranm): Log via the BoundNetLog, see crbug.com/437766
- VLOG(1) << "EV certificate for "
- << server_cert_verify_result_.verified_cert->subject()
- .GetDisplayName()
- << " does not conform to CT policy, removing EV status.";
- server_cert_verify_result_.cert_status |=
- CERT_STATUS_CT_COMPLIANCE_FAILED;
- server_cert_verify_result_.cert_status &= ~CERT_STATUS_IS_EV;
- }
- }
- ct_verify_result_.cert_policy_compliance =
- policy_enforcer_->DoesConformToCertPolicy(
- server_cert_verify_result_.verified_cert.get(),
- ct_verify_result_.verified_scts, net_log_);
- }
-}
-
-void SSLClientSocketOpenSSL::OnHandshakeIOComplete(int result) {
- int rv = DoHandshakeLoop(result);
- if (rv != ERR_IO_PENDING) {
- net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_CONNECT, rv);
- DoConnectCallback(rv);
- }
-}
-
-void SSLClientSocketOpenSSL::OnSendComplete(int result) {
- if (next_handshake_state_ == STATE_HANDSHAKE) {
- // In handshake phase.
- OnHandshakeIOComplete(result);
- return;
- }
-
- // During a renegotiation, a Read call may also be blocked on a transport
- // write, so retry both operations.
- PumpReadWriteEvents();
-}
-
-void SSLClientSocketOpenSSL::OnRecvComplete(int result) {
- TRACE_EVENT0("net", "SSLClientSocketOpenSSL::OnRecvComplete");
- if (next_handshake_state_ == STATE_HANDSHAKE) {
- // In handshake phase.
- OnHandshakeIOComplete(result);
- return;
- }
-
- // Network layer received some data, check if client requested to read
- // decrypted data.
- if (!user_read_buf_.get())
- return;
-
- int rv = DoReadLoop();
- if (rv != ERR_IO_PENDING)
- DoReadCallback(rv);
-}
-
-int SSLClientSocketOpenSSL::DoHandshakeLoop(int last_io_result) {
- TRACE_EVENT0("net", "SSLClientSocketOpenSSL::DoHandshakeLoop");
- int rv = last_io_result;
- do {
- // Default to STATE_NONE for next state.
- // (This is a quirk carried over from the windows
- // implementation. It makes reading the logs a bit harder.)
- // State handlers can and often do call GotoState just
- // to stay in the current state.
- State state = next_handshake_state_;
- GotoState(STATE_NONE);
- switch (state) {
- case STATE_HANDSHAKE:
- rv = DoHandshake();
- break;
- case STATE_HANDSHAKE_COMPLETE:
- rv = DoHandshakeComplete(rv);
- break;
- case STATE_CHANNEL_ID_LOOKUP:
- DCHECK_EQ(OK, rv);
- rv = DoChannelIDLookup();
- break;
- case STATE_CHANNEL_ID_LOOKUP_COMPLETE:
- rv = DoChannelIDLookupComplete(rv);
- break;
- case STATE_VERIFY_CERT:
- DCHECK_EQ(OK, rv);
- rv = DoVerifyCert(rv);
- break;
- case STATE_VERIFY_CERT_COMPLETE:
- rv = DoVerifyCertComplete(rv);
- break;
- case STATE_NONE:
- default:
- rv = ERR_UNEXPECTED;
- NOTREACHED() << "unexpected state" << state;
- break;
- }
-
- bool network_moved = DoTransportIO();
- if (network_moved && next_handshake_state_ == STATE_HANDSHAKE) {
- // In general we exit the loop if rv is ERR_IO_PENDING. In this
- // special case we keep looping even if rv is ERR_IO_PENDING because
- // the transport IO may allow DoHandshake to make progress.
- rv = OK; // This causes us to stay in the loop.
- }
- } while (rv != ERR_IO_PENDING && next_handshake_state_ != STATE_NONE);
- return rv;
-}
-
-int SSLClientSocketOpenSSL::DoReadLoop() {
- bool network_moved;
- int rv;
- do {
- rv = DoPayloadRead();
- network_moved = DoTransportIO();
- } while (rv == ERR_IO_PENDING && network_moved);
-
- return rv;
-}
-
-int SSLClientSocketOpenSSL::DoWriteLoop() {
- bool network_moved;
- int rv;
- do {
- rv = DoPayloadWrite();
- network_moved = DoTransportIO();
- } while (rv == ERR_IO_PENDING && network_moved);
-
- return rv;
-}
-
-int SSLClientSocketOpenSSL::DoPayloadRead() {
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-
- DCHECK_LT(0, user_read_buf_len_);
- DCHECK(user_read_buf_.get());
-
- int rv;
- if (pending_read_error_ != kNoPendingResult) {
- rv = pending_read_error_;
- pending_read_error_ = kNoPendingResult;
- if (rv == 0) {
- net_log_.AddByteTransferEvent(NetLog::TYPE_SSL_SOCKET_BYTES_RECEIVED,
- rv, user_read_buf_->data());
- } else {
- net_log_.AddEvent(
- NetLog::TYPE_SSL_READ_ERROR,
- CreateNetLogOpenSSLErrorCallback(rv, pending_read_ssl_error_,
- pending_read_error_info_));
- }
- pending_read_ssl_error_ = SSL_ERROR_NONE;
- pending_read_error_info_ = OpenSSLErrorInfo();
- return rv;
- }
-
- int total_bytes_read = 0;
- int ssl_ret;
- do {
- ssl_ret = SSL_read(ssl_, user_read_buf_->data() + total_bytes_read,
- user_read_buf_len_ - total_bytes_read);
- if (ssl_ret > 0)
- total_bytes_read += ssl_ret;
- } while (total_bytes_read < user_read_buf_len_ && ssl_ret > 0);
-
- // Although only the final SSL_read call may have failed, the failure needs to
- // processed immediately, while the information still available in OpenSSL's
- // error queue.
- if (ssl_ret <= 0) {
- // A zero return from SSL_read may mean any of:
- // - The underlying BIO_read returned 0.
- // - The peer sent a close_notify.
- // - Any arbitrary error. https://crbug.com/466303
- //
- // TransportReadComplete converts the first to an ERR_CONNECTION_CLOSED
- // error, so it does not occur. The second and third are distinguished by
- // SSL_ERROR_ZERO_RETURN.
- pending_read_ssl_error_ = SSL_get_error(ssl_, ssl_ret);
- if (pending_read_ssl_error_ == SSL_ERROR_ZERO_RETURN) {
- pending_read_error_ = 0;
- } else if (pending_read_ssl_error_ == SSL_ERROR_WANT_X509_LOOKUP &&
- !ssl_config_.send_client_cert) {
- pending_read_error_ = ERR_SSL_CLIENT_AUTH_CERT_NEEDED;
- } else if (pending_read_ssl_error_ ==
- SSL_ERROR_WANT_PRIVATE_KEY_OPERATION) {
- DCHECK(ssl_config_.client_private_key);
- DCHECK_NE(kNoPendingResult, signature_result_);
- pending_read_error_ = ERR_IO_PENDING;
- } else {
- pending_read_error_ = MapOpenSSLErrorWithDetails(
- pending_read_ssl_error_, err_tracer, &pending_read_error_info_);
- }
-
- // Many servers do not reliably send a close_notify alert when shutting down
- // a connection, and instead terminate the TCP connection. This is reported
- // as ERR_CONNECTION_CLOSED. Because of this, map the unclean shutdown to a
- // graceful EOF, instead of treating it as an error as it should be.
- if (pending_read_error_ == ERR_CONNECTION_CLOSED)
- pending_read_error_ = 0;
- }
-
- if (total_bytes_read > 0) {
- // Return any bytes read to the caller. The error will be deferred to the
- // next call of DoPayloadRead.
- rv = total_bytes_read;
-
- // Do not treat insufficient data as an error to return in the next call to
- // DoPayloadRead() - instead, let the call fall through to check SSL_read()
- // again. This is because DoTransportIO() may complete in between the next
- // call to DoPayloadRead(), and thus it is important to check SSL_read() on
- // subsequent invocations to see if a complete record may now be read.
- if (pending_read_error_ == ERR_IO_PENDING)
- pending_read_error_ = kNoPendingResult;
- } else {
- // No bytes were returned. Return the pending read error immediately.
- DCHECK_NE(kNoPendingResult, pending_read_error_);
- rv = pending_read_error_;
- pending_read_error_ = kNoPendingResult;
- }
-
- if (rv >= 0) {
- net_log_.AddByteTransferEvent(NetLog::TYPE_SSL_SOCKET_BYTES_RECEIVED, rv,
- user_read_buf_->data());
- } else if (rv != ERR_IO_PENDING) {
- net_log_.AddEvent(
- NetLog::TYPE_SSL_READ_ERROR,
- CreateNetLogOpenSSLErrorCallback(rv, pending_read_ssl_error_,
- pending_read_error_info_));
- pending_read_ssl_error_ = SSL_ERROR_NONE;
- pending_read_error_info_ = OpenSSLErrorInfo();
- }
- return rv;
-}
-
-int SSLClientSocketOpenSSL::DoPayloadWrite() {
- crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
- int rv = SSL_write(ssl_, user_write_buf_->data(), user_write_buf_len_);
-
- if (rv >= 0) {
- net_log_.AddByteTransferEvent(NetLog::TYPE_SSL_SOCKET_BYTES_SENT, rv,
- user_write_buf_->data());
- return rv;
- }
-
- int ssl_error = SSL_get_error(ssl_, rv);
- if (ssl_error == SSL_ERROR_WANT_PRIVATE_KEY_OPERATION)
- return ERR_IO_PENDING;
- OpenSSLErrorInfo error_info;
- int net_error = MapOpenSSLErrorWithDetails(ssl_error, err_tracer,
- &error_info);
-
- if (net_error != ERR_IO_PENDING) {
- net_log_.AddEvent(
- NetLog::TYPE_SSL_WRITE_ERROR,
- CreateNetLogOpenSSLErrorCallback(net_error, ssl_error, error_info));
- }
- return net_error;
-}
-
-void SSLClientSocketOpenSSL::PumpReadWriteEvents() {
- int rv_read = ERR_IO_PENDING;
- int rv_write = ERR_IO_PENDING;
- bool network_moved;
- do {
- if (user_read_buf_.get())
- rv_read = DoPayloadRead();
- if (user_write_buf_.get())
- rv_write = DoPayloadWrite();
- network_moved = DoTransportIO();
- } while (rv_read == ERR_IO_PENDING && rv_write == ERR_IO_PENDING &&
- (user_read_buf_.get() || user_write_buf_.get()) && network_moved);
-
- // Performing the Read callback may cause |this| to be deleted. If this
- // happens, the Write callback should not be invoked. Guard against this by
- // holding a WeakPtr to |this| and ensuring it's still valid.
- base::WeakPtr<SSLClientSocketOpenSSL> guard(weak_factory_.GetWeakPtr());
- if (user_read_buf_.get() && rv_read != ERR_IO_PENDING)
- DoReadCallback(rv_read);
-
- if (!guard.get())
- return;
-
- if (user_write_buf_.get() && rv_write != ERR_IO_PENDING)
- DoWriteCallback(rv_write);
-}
-
-int SSLClientSocketOpenSSL::BufferSend(void) {
- if (transport_send_busy_)
- return ERR_IO_PENDING;
-
- size_t buffer_read_offset;
- uint8_t* read_buf;
- size_t max_read;
- int status = BIO_zero_copy_get_read_buf(transport_bio_, &read_buf,
- &buffer_read_offset, &max_read);
- DCHECK_EQ(status, 1); // Should never fail.
- if (!max_read)
- return 0; // Nothing pending in the OpenSSL write BIO.
- CHECK_EQ(read_buf, reinterpret_cast<uint8_t*>(send_buffer_->StartOfBuffer()));
- CHECK_LT(buffer_read_offset, static_cast<size_t>(send_buffer_->capacity()));
- send_buffer_->set_offset(buffer_read_offset);
-
- int rv = transport_->socket()->Write(
- send_buffer_.get(), max_read,
- base::Bind(&SSLClientSocketOpenSSL::BufferSendComplete,
- base::Unretained(this)));
- if (rv == ERR_IO_PENDING) {
- transport_send_busy_ = true;
- } else {
- TransportWriteComplete(rv);
- }
- return rv;
-}
-
-int SSLClientSocketOpenSSL::BufferRecv(void) {
- if (transport_recv_busy_)
- return ERR_IO_PENDING;
-
- // Determine how much was requested from |transport_bio_| that was not
- // actually available.
- size_t requested = BIO_ctrl_get_read_request(transport_bio_);
- if (requested == 0) {
- // This is not a perfect match of error codes, as no operation is
- // actually pending. However, returning 0 would be interpreted as
- // a possible sign of EOF, which is also an inappropriate match.
- return ERR_IO_PENDING;
- }
-
- // Known Issue: While only reading |requested| data is the more correct
- // implementation, it has the downside of resulting in frequent reads:
- // One read for the SSL record header (~5 bytes) and one read for the SSL
- // record body. Rather than issuing these reads to the underlying socket
- // (and constantly allocating new IOBuffers), a single Read() request to
- // fill |transport_bio_| is issued. As long as an SSL client socket cannot
- // be gracefully shutdown (via SSL close alerts) and re-used for non-SSL
- // traffic, this over-subscribed Read()ing will not cause issues.
-
- size_t buffer_write_offset;
- uint8_t* write_buf;
- size_t max_write;
- int status = BIO_zero_copy_get_write_buf(transport_bio_, &write_buf,
- &buffer_write_offset, &max_write);
- DCHECK_EQ(status, 1); // Should never fail.
- if (!max_write)
- return ERR_IO_PENDING;
-
- CHECK_EQ(write_buf,
- reinterpret_cast<uint8_t*>(recv_buffer_->StartOfBuffer()));
- CHECK_LT(buffer_write_offset, static_cast<size_t>(recv_buffer_->capacity()));
-
- recv_buffer_->set_offset(buffer_write_offset);
- int rv = transport_->socket()->Read(
- recv_buffer_.get(),
- max_write,
- base::Bind(&SSLClientSocketOpenSSL::BufferRecvComplete,
- base::Unretained(this)));
- if (rv == ERR_IO_PENDING) {
- transport_recv_busy_ = true;
- } else {
- rv = TransportReadComplete(rv);
- }
- return rv;
-}
-
-void SSLClientSocketOpenSSL::BufferSendComplete(int result) {
- TransportWriteComplete(result);
- OnSendComplete(result);
-}
-
-void SSLClientSocketOpenSSL::BufferRecvComplete(int result) {
- result = TransportReadComplete(result);
- OnRecvComplete(result);
-}
-
-void SSLClientSocketOpenSSL::TransportWriteComplete(int result) {
- DCHECK(ERR_IO_PENDING != result);
- int bytes_written = 0;
- if (result < 0) {
- // Record the error. Save it to be reported in a future read or write on
- // transport_bio_'s peer.
- transport_write_error_ = result;
- } else {
- bytes_written = result;
- }
- DCHECK_GE(send_buffer_->RemainingCapacity(), bytes_written);
- int ret = BIO_zero_copy_get_read_buf_done(transport_bio_, bytes_written);
- DCHECK_EQ(1, ret);
- transport_send_busy_ = false;
-}
-
-int SSLClientSocketOpenSSL::TransportReadComplete(int result) {
- DCHECK(ERR_IO_PENDING != result);
- // If an EOF, canonicalize to ERR_CONNECTION_CLOSED here so MapOpenSSLError
- // does not report success.
- if (result == 0)
- result = ERR_CONNECTION_CLOSED;
- int bytes_read = 0;
- if (result < 0) {
- DVLOG(1) << "TransportReadComplete result " << result;
- // Received an error. Save it to be reported in a future read on
- // transport_bio_'s peer.
- transport_read_error_ = result;
- } else {
- bytes_read = result;
- }
- DCHECK_GE(recv_buffer_->RemainingCapacity(), bytes_read);
- int ret = BIO_zero_copy_get_write_buf_done(transport_bio_, bytes_read);
- DCHECK_EQ(1, ret);
- transport_recv_busy_ = false;
- return result;
-}
-
-int SSLClientSocketOpenSSL::ClientCertRequestCallback(SSL* ssl) {
- DVLOG(3) << "OpenSSL ClientCertRequestCallback called";
- DCHECK(ssl == ssl_);
-
- net_log_.AddEvent(NetLog::TYPE_SSL_CLIENT_CERT_REQUESTED);
-
- // Clear any currently configured certificates.
- SSL_certs_clear(ssl_);
-
-#if defined(OS_IOS)
- // TODO(droger): Support client auth on iOS. See http://crbug.com/145954).
- LOG(WARNING) << "Client auth is not supported";
-#else // !defined(OS_IOS)
- if (!ssl_config_.send_client_cert) {
- // First pass: we know that a client certificate is needed, but we do not
- // have one at hand.
- STACK_OF(X509_NAME) *authorities = SSL_get_client_CA_list(ssl);
- for (size_t i = 0; i < sk_X509_NAME_num(authorities); i++) {
- X509_NAME *ca_name = (X509_NAME *)sk_X509_NAME_value(authorities, i);
- unsigned char* str = NULL;
- int length = i2d_X509_NAME(ca_name, &str);
- cert_authorities_.push_back(std::string(
- reinterpret_cast<const char*>(str),
- static_cast<size_t>(length)));
- OPENSSL_free(str);
- }
-
- const unsigned char* client_cert_types;
- size_t num_client_cert_types =
- SSL_get0_certificate_types(ssl, &client_cert_types);
- for (size_t i = 0; i < num_client_cert_types; i++) {
- cert_key_types_.push_back(
- static_cast<SSLClientCertType>(client_cert_types[i]));
- }
-
- // Suspends handshake. SSL_get_error will return SSL_ERROR_WANT_X509_LOOKUP.
- return -1;
- }
-
- // Second pass: a client certificate should have been selected.
- if (ssl_config_.client_cert.get()) {
- ScopedX509 leaf_x509 =
- OSCertHandleToOpenSSL(ssl_config_.client_cert->os_cert_handle());
- if (!leaf_x509) {
- LOG(WARNING) << "Failed to import certificate";
- OpenSSLPutNetError(FROM_HERE, ERR_SSL_CLIENT_AUTH_CERT_BAD_FORMAT);
- return -1;
- }
-
- ScopedX509Stack chain = OSCertHandlesToOpenSSL(
- ssl_config_.client_cert->GetIntermediateCertificates());
- if (!chain) {
- LOG(WARNING) << "Failed to import intermediate certificates";
- OpenSSLPutNetError(FROM_HERE, ERR_SSL_CLIENT_AUTH_CERT_BAD_FORMAT);
- return -1;
- }
-
- if (!SSL_use_certificate(ssl_, leaf_x509.get()) ||
- !SSL_set1_chain(ssl_, chain.get())) {
- LOG(WARNING) << "Failed to set client certificate";
- return -1;
- }
-
- if (!ssl_config_.client_private_key) {
- // The caller supplied a null private key. Fail the handshake and surface
- // an appropriate error to the caller.
- LOG(WARNING) << "Client cert found without private key";
- OpenSSLPutNetError(FROM_HERE, ERR_SSL_CLIENT_AUTH_CERT_NO_PRIVATE_KEY);
- return -1;
- }
-
- SSL_set_private_key_method(ssl_, &SSLContext::kPrivateKeyMethod);
-
- std::vector<SSLPrivateKey::Hash> digest_prefs =
- ssl_config_.client_private_key->GetDigestPreferences();
-
- size_t digests_len = digest_prefs.size();
- std::vector<int> digests;
- for (size_t i = 0; i < digests_len; i++) {
- switch (digest_prefs[i]) {
- case SSLPrivateKey::Hash::SHA1:
- digests.push_back(NID_sha1);
- break;
- case SSLPrivateKey::Hash::SHA256:
- digests.push_back(NID_sha256);
- break;
- case SSLPrivateKey::Hash::SHA384:
- digests.push_back(NID_sha384);
- break;
- case SSLPrivateKey::Hash::SHA512:
- digests.push_back(NID_sha512);
- break;
- case SSLPrivateKey::Hash::MD5_SHA1:
- // MD5-SHA1 is not used in TLS 1.2.
- break;
- }
- }
-
- SSL_set_private_key_digest_prefs(ssl_, digests.data(), digests.size());
-
- int cert_count = 1 + sk_X509_num(chain.get());
- net_log_.AddEvent(NetLog::TYPE_SSL_CLIENT_CERT_PROVIDED,
- NetLog::IntCallback("cert_count", cert_count));
- return 1;
- }
-#endif // defined(OS_IOS)
-
- // Send no client certificate.
- net_log_.AddEvent(NetLog::TYPE_SSL_CLIENT_CERT_PROVIDED,
- NetLog::IntCallback("cert_count", 0));
- return 1;
-}
-
-int SSLClientSocketOpenSSL::CertVerifyCallback(X509_STORE_CTX* store_ctx) {
- if (!completed_connect_) {
- // If the first handshake hasn't completed then we accept any certificates
- // because we verify after the handshake.
- return 1;
- }
-
- // Disallow the server certificate to change in a renegotiation.
- if (server_cert_chain_->empty()) {
- LOG(ERROR) << "Received invalid certificate chain between handshakes";
- return 0;
- }
- base::StringPiece old_der, new_der;
- if (store_ctx->cert == NULL ||
- !x509_util::GetDER(server_cert_chain_->Get(0), &old_der) ||
- !x509_util::GetDER(store_ctx->cert, &new_der)) {
- LOG(ERROR) << "Failed to encode certificates";
- return 0;
- }
- if (old_der != new_der) {
- LOG(ERROR) << "Server certificate changed between handshakes";
- return 0;
- }
-
- return 1;
-}
-
-// SelectNextProtoCallback is called by OpenSSL during the handshake. If the
-// server supports NPN, selects a protocol from the list that the server
-// provides. According to third_party/boringssl/src/ssl/ssl_lib.c, the
-// callback can assume that |in| is syntactically valid.
-int SSLClientSocketOpenSSL::SelectNextProtoCallback(unsigned char** out,
- unsigned char* outlen,
- const unsigned char* in,
- unsigned int inlen) {
- if (ssl_config_.npn_protos.empty()) {
- *out = reinterpret_cast<uint8_t*>(
- const_cast<char*>(kDefaultSupportedNPNProtocol));
- *outlen = arraysize(kDefaultSupportedNPNProtocol) - 1;
- npn_status_ = kNextProtoUnsupported;
- return SSL_TLSEXT_ERR_OK;
- }
-
- // Assume there's no overlap between our protocols and the server's list.
- npn_status_ = kNextProtoNoOverlap;
-
- // For each protocol in server preference order, see if we support it.
- for (unsigned int i = 0; i < inlen; i += in[i] + 1) {
- for (NextProto next_proto : ssl_config_.npn_protos) {
- const std::string proto = NextProtoToString(next_proto);
- if (in[i] == proto.size() &&
- memcmp(&in[i + 1], proto.data(), in[i]) == 0) {
- // We found a match.
- *out = const_cast<unsigned char*>(in) + i + 1;
- *outlen = in[i];
- npn_status_ = kNextProtoNegotiated;
- break;
- }
- }
- if (npn_status_ == kNextProtoNegotiated)
- break;
- }
-
- // If we didn't find a protocol, we select the last one from our list.
- if (npn_status_ == kNextProtoNoOverlap) {
- // NextProtoToString returns a pointer to a static string.
- const char* proto = NextProtoToString(ssl_config_.npn_protos.back());
- *out = reinterpret_cast<unsigned char*>(const_cast<char*>(proto));
- *outlen = strlen(proto);
- }
-
- npn_proto_.assign(reinterpret_cast<const char*>(*out), *outlen);
- DVLOG(2) << "next protocol: '" << npn_proto_ << "' status: " << npn_status_;
- set_negotiation_extension(kExtensionNPN);
- return SSL_TLSEXT_ERR_OK;
-}
-
-long SSLClientSocketOpenSSL::MaybeReplayTransportError(
- BIO *bio,
- int cmd,
- const char *argp, int argi, long argl,
- long retvalue) {
- if (cmd == (BIO_CB_READ|BIO_CB_RETURN) && retvalue <= 0) {
- // If there is no more data in the buffer, report any pending errors that
- // were observed. Note that both the readbuf and the writebuf are checked
- // for errors, since the application may have encountered a socket error
- // while writing that would otherwise not be reported until the application
- // attempted to write again - which it may never do. See
- // https://crbug.com/249848.
- if (transport_read_error_ != OK) {
- OpenSSLPutNetError(FROM_HERE, transport_read_error_);
- return -1;
- }
- if (transport_write_error_ != OK) {
- OpenSSLPutNetError(FROM_HERE, transport_write_error_);
- return -1;
- }
- } else if (cmd == BIO_CB_WRITE) {
- // Because of the write buffer, this reports a failure from the previous
- // write payload. If the current payload fails to write, the error will be
- // reported in a future write or read to |bio|.
- if (transport_write_error_ != OK) {
- OpenSSLPutNetError(FROM_HERE, transport_write_error_);
- return -1;
- }
- }
- return retvalue;
-}
-
-// static
-long SSLClientSocketOpenSSL::BIOCallback(
- BIO *bio,
- int cmd,
- const char *argp, int argi, long argl,
- long retvalue) {
- SSLClientSocketOpenSSL* socket = reinterpret_cast<SSLClientSocketOpenSSL*>(
- BIO_get_callback_arg(bio));
- CHECK(socket);
- return socket->MaybeReplayTransportError(
- bio, cmd, argp, argi, argl, retvalue);
-}
-
-void SSLClientSocketOpenSSL::MaybeCacheSession() {
- // Only cache the session once both a new session has been established and the
- // certificate has been verified. Due to False Start, these events may happen
- // in either order.
- if (!session_pending_ || !certificate_verified_)
- return;
-
- SSLContext::GetInstance()->session_cache()->Insert(GetSessionCacheKey(),
- SSL_get_session(ssl_));
- session_pending_ = false;
-}
-
-int SSLClientSocketOpenSSL::NewSessionCallback(SSL_SESSION* session) {
- DCHECK_EQ(session, SSL_get_session(ssl_));
-
- // Only sessions from the initial handshake get cached. Note this callback may
- // be signaled on abbreviated handshakes if the ticket was renewed.
- session_pending_ = true;
- MaybeCacheSession();
-
- // OpenSSL passes a reference to |session|, but the session cache does not
- // take this reference, so release it.
- SSL_SESSION_free(session);
- return 1;
-}
-
-void SSLClientSocketOpenSSL::AddCTInfoToSSLInfo(SSLInfo* ssl_info) const {
- ssl_info->UpdateCertificateTransparencyInfo(ct_verify_result_);
-}
-
-std::string SSLClientSocketOpenSSL::GetSessionCacheKey() const {
- std::string result = host_and_port_.ToString();
- result.append("/");
- result.append(ssl_session_cache_shard_);
-
- // Shard the session cache based on maximum protocol version. This causes
- // fallback connections to use a separate session cache.
- result.append("/");
- switch (ssl_config_.version_max) {
- case SSL_PROTOCOL_VERSION_TLS1:
- result.append("tls1");
- break;
- case SSL_PROTOCOL_VERSION_TLS1_1:
- result.append("tls1.1");
- break;
- case SSL_PROTOCOL_VERSION_TLS1_2:
- result.append("tls1.2");
- break;
- default:
- NOTREACHED();
- }
-
- result.append("/");
- if (ssl_config_.deprecated_cipher_suites_enabled)
- result.append("deprecated");
-
- result.append("/");
- if (ssl_config_.channel_id_enabled)
- result.append("channelid");
-
- return result;
-}
-
-bool SSLClientSocketOpenSSL::IsRenegotiationAllowed() const {
- if (tb_was_negotiated_)
- return false;
-
- if (npn_status_ == kNextProtoUnsupported)
- return ssl_config_.renego_allowed_default;
-
- NextProto next_proto = NextProtoFromString(npn_proto_);
- for (NextProto allowed : ssl_config_.renego_allowed_for_protos) {
- if (next_proto == allowed)
- return true;
- }
- return false;
-}
-
-int SSLClientSocketOpenSSL::PrivateKeyTypeCallback() {
- switch (ssl_config_.client_private_key->GetType()) {
- case SSLPrivateKey::Type::RSA:
- return EVP_PKEY_RSA;
- case SSLPrivateKey::Type::ECDSA:
- return EVP_PKEY_EC;
- }
- NOTREACHED();
- return EVP_PKEY_NONE;
-}
-
-size_t SSLClientSocketOpenSSL::PrivateKeyMaxSignatureLenCallback() {
- return ssl_config_.client_private_key->GetMaxSignatureLengthInBytes();
-}
-
-ssl_private_key_result_t SSLClientSocketOpenSSL::PrivateKeySignCallback(
- uint8_t* out,
- size_t* out_len,
- size_t max_out,
- const EVP_MD* md,
- const uint8_t* in,
- size_t in_len) {
- DCHECK_EQ(kNoPendingResult, signature_result_);
- DCHECK(signature_.empty());
- DCHECK(ssl_config_.client_private_key);
-
- SSLPrivateKey::Hash hash;
- if (!EVP_MDToPrivateKeyHash(md, &hash)) {
- OpenSSLPutNetError(FROM_HERE, ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED);
- return ssl_private_key_failure;
- }
-
- net_log_.BeginEvent(
- NetLog::TYPE_SSL_PRIVATE_KEY_OPERATION,
- base::Bind(&NetLogPrivateKeyOperationCallback,
- ssl_config_.client_private_key->GetType(), hash));
-
- signature_result_ = ERR_IO_PENDING;
- ssl_config_.client_private_key->SignDigest(
- hash, base::StringPiece(reinterpret_cast<const char*>(in), in_len),
- base::Bind(&SSLClientSocketOpenSSL::OnPrivateKeySignComplete,
- weak_factory_.GetWeakPtr()));
- return ssl_private_key_retry;
-}
-
-ssl_private_key_result_t SSLClientSocketOpenSSL::PrivateKeySignCompleteCallback(
- uint8_t* out,
- size_t* out_len,
- size_t max_out) {
- DCHECK_NE(kNoPendingResult, signature_result_);
- DCHECK(ssl_config_.client_private_key);
-
- if (signature_result_ == ERR_IO_PENDING)
- return ssl_private_key_retry;
- if (signature_result_ != OK) {
- OpenSSLPutNetError(FROM_HERE, signature_result_);
- return ssl_private_key_failure;
- }
- if (signature_.size() > max_out) {
- OpenSSLPutNetError(FROM_HERE, ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED);
- return ssl_private_key_failure;
- }
- memcpy(out, signature_.data(), signature_.size());
- *out_len = signature_.size();
- signature_.clear();
- return ssl_private_key_success;
-}
-
-void SSLClientSocketOpenSSL::OnPrivateKeySignComplete(
- Error error,
- const std::vector<uint8_t>& signature) {
- DCHECK_EQ(ERR_IO_PENDING, signature_result_);
- DCHECK(signature_.empty());
- DCHECK(ssl_config_.client_private_key);
-
- net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_PRIVATE_KEY_OPERATION,
- error);
-
- signature_result_ = error;
- if (signature_result_ == OK)
- signature_ = signature;
-
- if (next_handshake_state_ == STATE_HANDSHAKE) {
- OnHandshakeIOComplete(signature_result_);
- return;
- }
-
- // During a renegotiation, either Read or Write calls may be blocked on an
- // asynchronous private key operation.
- PumpReadWriteEvents();
-}
-
-int SSLClientSocketOpenSSL::TokenBindingAdd(const uint8_t** out,
- size_t* out_len,
- int* out_alert_value) {
- if (ssl_config_.token_binding_params.empty()) {
- return 0;
- }
- crypto::AutoCBB output;
- CBB parameters_list;
- if (!CBB_init(output.get(), 7) ||
- !CBB_add_u8(output.get(), kTbProtocolVersionMajor) ||
- !CBB_add_u8(output.get(), kTbProtocolVersionMinor) ||
- !CBB_add_u8_length_prefixed(output.get(), &parameters_list)) {
- *out_alert_value = SSL_AD_INTERNAL_ERROR;
- return -1;
- }
- for (size_t i = 0; i < ssl_config_.token_binding_params.size(); ++i) {
- if (!CBB_add_u8(&parameters_list, ssl_config_.token_binding_params[i])) {
- *out_alert_value = SSL_AD_INTERNAL_ERROR;
- return -1;
- }
- }
- // |*out| will be freed by TokenBindingFreeCallback.
- if (!CBB_finish(output.get(), const_cast<uint8_t**>(out), out_len)) {
- *out_alert_value = SSL_AD_INTERNAL_ERROR;
- return -1;
- }
-
- return 1;
-}
-
-int SSLClientSocketOpenSSL::TokenBindingParse(const uint8_t* contents,
- size_t contents_len,
- int* out_alert_value) {
- if (completed_connect_) {
- // Token Binding may only be negotiated on the initial handshake.
- *out_alert_value = SSL_AD_ILLEGAL_PARAMETER;
- return 0;
- }
-
- CBS extension;
- CBS_init(&extension, contents, contents_len);
-
- CBS parameters_list;
- uint8_t version_major, version_minor, param;
- if (!CBS_get_u8(&extension, &version_major) ||
- !CBS_get_u8(&extension, &version_minor) ||
- !CBS_get_u8_length_prefixed(&extension, &parameters_list) ||
- !CBS_get_u8(&parameters_list, &param) || CBS_len(&parameters_list) > 0 ||
- CBS_len(&extension) > 0) {
- *out_alert_value = SSL_AD_DECODE_ERROR;
- return 0;
- }
- // The server-negotiated version must be less than or equal to our version.
- if (version_major > kTbProtocolVersionMajor ||
- (version_minor > kTbProtocolVersionMinor &&
- version_major == kTbProtocolVersionMajor)) {
- *out_alert_value = SSL_AD_ILLEGAL_PARAMETER;
- return 0;
- }
- // If the version the server negotiated is older than we support, don't fail
- // parsing the extension, but also don't set |negotiated_|.
- if (version_major < kTbMinProtocolVersionMajor ||
- (version_minor < kTbMinProtocolVersionMinor &&
- version_major == kTbMinProtocolVersionMajor)) {
- return 1;
- }
-
- for (size_t i = 0; i < ssl_config_.token_binding_params.size(); ++i) {
- if (param == ssl_config_.token_binding_params[i]) {
- tb_negotiated_param_ = ssl_config_.token_binding_params[i];
- tb_was_negotiated_ = true;
- return 1;
- }
- }
-
- *out_alert_value = SSL_AD_ILLEGAL_PARAMETER;
- return 0;
-}
-
-} // namespace net

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