namespace folly {
bool SSLContext::initialized_ = false;
-std::mutex SSLContext::mutex_;
+
+namespace {
+
+std::mutex& initMutex() {
+ static std::mutex m;
+ return m;
+}
+
+} // anonymous namespace
+
#ifdef OPENSSL_NPN_NEGOTIATED
int SSLContext::sNextProtocolsExDataIndex_ = -1;
#endif
// SSLContext implementation
SSLContext::SSLContext(SSLVersion version) {
{
- std::lock_guard<std::mutex> g(mutex_);
+ std::lock_guard<std::mutex> g(initMutex());
initializeOpenSSLLocked();
}
}
#endif
+#if OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined(OPENSSL_NO_TLSEXT)
+int SSLContext::alpnSelectCallback(SSL* ssl,
+ const unsigned char** out,
+ unsigned char* outlen,
+ const unsigned char* in,
+ unsigned int inlen,
+ void* data) {
+ SSLContext* context = (SSLContext*)data;
+ CHECK(context);
+ if (context->advertisedNextProtocols_.empty()) {
+ *out = nullptr;
+ *outlen = 0;
+ } else {
+ auto i = context->pickNextProtocols();
+ const auto& item = context->advertisedNextProtocols_[i];
+ if (SSL_select_next_proto((unsigned char**)out,
+ outlen,
+ item.protocols,
+ item.length,
+ in,
+ inlen) != OPENSSL_NPN_NEGOTIATED) {
+ return SSL_TLSEXT_ERR_NOACK;
+ }
+ }
+ return SSL_TLSEXT_ERR_OK;
+}
+#endif
+
#ifdef OPENSSL_NPN_NEGOTIATED
-bool SSLContext::setAdvertisedNextProtocols(const std::list<std::string>& protocols) {
- return setRandomizedAdvertisedNextProtocols({{1, protocols}});
+
+bool SSLContext::setAdvertisedNextProtocols(
+ const std::list<std::string>& protocols, NextProtocolType protocolType) {
+ return setRandomizedAdvertisedNextProtocols({{1, protocols}}, protocolType);
}
bool SSLContext::setRandomizedAdvertisedNextProtocols(
- const std::list<NextProtocolsItem>& items) {
+ const std::list<NextProtocolsItem>& items, NextProtocolType protocolType) {
unsetNextProtocols();
if (items.size() == 0) {
return false;
deleteNextProtocolsStrings();
return false;
}
- for (auto &advertised_item : advertisedNextProtocols_) {
+ for (auto& advertised_item : advertisedNextProtocols_) {
advertised_item.probability /= total_weight;
}
- SSL_CTX_set_next_protos_advertised_cb(
- ctx_, advertisedNextProtocolCallback, this);
- SSL_CTX_set_next_proto_select_cb(
- ctx_, selectNextProtocolCallback, this);
+ if ((uint8_t)protocolType & (uint8_t)NextProtocolType::NPN) {
+ SSL_CTX_set_next_protos_advertised_cb(
+ ctx_, advertisedNextProtocolCallback, this);
+ SSL_CTX_set_next_proto_select_cb(ctx_, selectNextProtocolCallback, this);
+ }
+#if OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined(OPENSSL_NO_TLSEXT)
+ if ((uint8_t)protocolType & (uint8_t)NextProtocolType::ALPN) {
+ SSL_CTX_set_alpn_select_cb(ctx_, alpnSelectCallback, this);
+ // Client cannot really use randomized alpn
+ SSL_CTX_set_alpn_protos(ctx_,
+ advertisedNextProtocols_[0].protocols,
+ advertisedNextProtocols_[0].length);
+ }
+#endif
return true;
}
deleteNextProtocolsStrings();
SSL_CTX_set_next_protos_advertised_cb(ctx_, nullptr, nullptr);
SSL_CTX_set_next_proto_select_cb(ctx_, nullptr, nullptr);
+#if OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined(OPENSSL_NO_TLSEXT)
+ SSL_CTX_set_alpn_select_cb(ctx_, nullptr, nullptr);
+ SSL_CTX_set_alpn_protos(ctx_, nullptr, 0);
+#endif
+}
+
+size_t SSLContext::pickNextProtocols() {
+ unsigned char random_byte;
+ RAND_bytes(&random_byte, 1);
+ double random_value = random_byte / 255.0;
+ double sum = 0;
+ for (size_t i = 0; i < advertisedNextProtocols_.size(); ++i) {
+ sum += advertisedNextProtocols_[i].probability;
+ if (sum < random_value && i + 1 < advertisedNextProtocols_.size()) {
+ continue;
+ }
+ return i;
+ }
+ CHECK(false) << "Failed to pickNextProtocols";
}
int SSLContext::advertisedNextProtocolCallback(SSL* ssl,
*out = context->advertisedNextProtocols_[selected_index].protocols;
*outlen = context->advertisedNextProtocols_[selected_index].length;
} else {
- unsigned char random_byte;
- RAND_bytes(&random_byte, 1);
- double random_value = random_byte / 255.0;
- double sum = 0;
- for (size_t i = 0; i < context->advertisedNextProtocols_.size(); ++i) {
- sum += context->advertisedNextProtocols_[i].probability;
- if (sum < random_value &&
- i + 1 < context->advertisedNextProtocols_.size()) {
- continue;
- }
- uintptr_t selected = i + 1;
- SSL_set_ex_data(ssl, sNextProtocolsExDataIndex_, (void *)selected);
- *out = context->advertisedNextProtocols_[i].protocols;
- *outlen = context->advertisedNextProtocols_[i].length;
- break;
- }
+ auto i = context->pickNextProtocols();
+ uintptr_t selected = i + 1;
+ SSL_set_ex_data(ssl, sNextProtocolsExDataIndex_, (void*)selected);
+ *out = context->advertisedNextProtocols_[i].protocols;
+ *outlen = context->advertisedNextProtocols_[i].length;
}
}
return SSL_TLSEXT_ERR_OK;
#if defined(SSL_MODE_HANDSHAKE_CUTTHROUGH) && \
FOLLY_SSLCONTEXT_USE_TLS_FALSE_START
SSLContext::SSLFalseStartChecker::SSLFalseStartChecker() :
- /**
- * The list was generated as follows:
- * grep "_CK_" openssl-1.0.1e/ssl/s3_lib.c -A 4 |
- * while read A && read B && read C && read D && read E && read F; do
- * echo $A $B $C $D $E; done |
- * grep "\(SSL_kDHr\|SSL_kDHd\|SSL_kEDH\|SSL_kECDHr\|
- * SSL_kECDHe\|SSL_kEECDH\)" | grep -v SSL_aNULL | grep SSL_AES |
- * awk -F, '{ print $1"," }'
- */
ciphers_{
- TLS1_CK_DH_DSS_WITH_AES_128_SHA,
- TLS1_CK_DH_RSA_WITH_AES_128_SHA,
TLS1_CK_DHE_DSS_WITH_AES_128_SHA,
TLS1_CK_DHE_RSA_WITH_AES_128_SHA,
- TLS1_CK_DH_DSS_WITH_AES_256_SHA,
- TLS1_CK_DH_RSA_WITH_AES_256_SHA,
TLS1_CK_DHE_DSS_WITH_AES_256_SHA,
TLS1_CK_DHE_RSA_WITH_AES_256_SHA,
- TLS1_CK_DH_DSS_WITH_AES_128_SHA256,
- TLS1_CK_DH_RSA_WITH_AES_128_SHA256,
TLS1_CK_DHE_DSS_WITH_AES_128_SHA256,
TLS1_CK_DHE_RSA_WITH_AES_128_SHA256,
- TLS1_CK_DH_DSS_WITH_AES_256_SHA256,
- TLS1_CK_DH_RSA_WITH_AES_256_SHA256,
TLS1_CK_DHE_DSS_WITH_AES_256_SHA256,
TLS1_CK_DHE_RSA_WITH_AES_256_SHA256,
TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256,
TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384,
- TLS1_CK_DH_RSA_WITH_AES_128_GCM_SHA256,
- TLS1_CK_DH_RSA_WITH_AES_256_GCM_SHA384,
TLS1_CK_DHE_DSS_WITH_AES_128_GCM_SHA256,
TLS1_CK_DHE_DSS_WITH_AES_256_GCM_SHA384,
- TLS1_CK_DH_DSS_WITH_AES_128_GCM_SHA256,
- TLS1_CK_DH_DSS_WITH_AES_256_GCM_SHA384,
- TLS1_CK_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
- TLS1_CK_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
- TLS1_CK_ECDH_RSA_WITH_AES_128_CBC_SHA,
- TLS1_CK_ECDH_RSA_WITH_AES_256_CBC_SHA,
TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA,
TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA,
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_SHA256,
TLS1_CK_ECDH_ECDSA_WITH_AES_256_SHA384,
TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256,
TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384,
- TLS1_CK_ECDH_RSA_WITH_AES_128_SHA256,
- TLS1_CK_ECDH_RSA_WITH_AES_256_SHA384,
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
- TLS1_CK_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
- TLS1_CK_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
- TLS1_CK_ECDH_RSA_WITH_AES_128_GCM_SHA256,
} {
length_ = sizeof(ciphers_)/sizeof(ciphers_[0]);
width_ = sizeof(ciphers_[0]);
}
unsigned char *client;
- int client_len;
- if (ctx->advertisedNextProtocols_.empty()) {
- client = (unsigned char *) "";
- client_len = 0;
- } else {
- client = ctx->advertisedNextProtocols_[0].protocols;
- client_len = ctx->advertisedNextProtocols_[0].length;
+ unsigned int client_len;
+ bool filtered = false;
+ auto cpf = ctx->getClientProtocolFilterCallback();
+ if (cpf) {
+ filtered = (*cpf)(&client, &client_len, server, server_len);
+ }
+
+ if (!filtered) {
+ if (ctx->advertisedNextProtocols_.empty()) {
+ client = (unsigned char *) "";
+ client_len = 0;
+ } else {
+ client = ctx->advertisedNextProtocols_[0].protocols;
+ client_len = ctx->advertisedNextProtocols_[0].length;
+ }
}
int retval = SSL_select_next_proto(out, outlen, server, server_len,
}
void SSLContext::markInitialized() {
- std::lock_guard<std::mutex> g(mutex_);
+ std::lock_guard<std::mutex> g(initMutex());
initialized_ = true;
}
void SSLContext::initializeOpenSSL() {
- std::lock_guard<std::mutex> g(mutex_);
+ std::lock_guard<std::mutex> g(initMutex());
initializeOpenSSLLocked();
}
}
void SSLContext::cleanupOpenSSL() {
- std::lock_guard<std::mutex> g(mutex_);
+ std::lock_guard<std::mutex> g(initMutex());
cleanupOpenSSLLocked();
}
projects / folly.git / blobdiff