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quic: add additional quic implementation utilities · nodejs/node@d65ae9f · GitHub

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jasnell
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quic: add additional quic implementation utilities
* add TokenSecret, StatelessResetToken, RetryToken, and RegularToken * add SessionTicket implementation PR-URL: #47289 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
1 parent 863ac8f commit d65ae9f

8 files changed

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‎node.gyp‎

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@@ -339,9 +339,13 @@
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'src/quic/cid.cc',
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'src/quic/data.cc',
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'src/quic/preferredaddress.cc',
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'src/quic/sessionticket.cc',
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'src/quic/tokens.cc',
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'src/quic/cid.h',
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'src/quic/data.h',
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'src/quic/preferredaddress.h',
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'src/quic/sessionticket.h',
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'src/quic/tokens.h',
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],
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'node_mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)node_mksnapshot<(EXECUTABLE_SUFFIX)',
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'conditions': [
@@ -1033,6 +1037,7 @@
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'test/cctest/test_crypto_clienthello.cc',
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'test/cctest/test_node_crypto.cc',
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'test/cctest/test_quic_cid.cc',
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'test/cctest/test_quic_tokens.cc',
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]
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}],
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['v8_enable_inspector==1', {

‎src/quic/data.cc‎

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@@ -15,6 +15,7 @@ using v8::BigInt;
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using v8::Integer;
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using v8::Local;
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using v8::MaybeLocal;
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using v8::Uint8Array;
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using v8::Undefined;
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using v8::Value;
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@@ -66,6 +67,14 @@ Store::Store(v8::Local<v8::ArrayBufferView> view, Option option)
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}
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}
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v8::Local<v8::Uint8Array> Store::ToUint8Array(Environment* env) const {
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return !store_
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? Uint8Array::New(v8::ArrayBuffer::New(env->isolate(), 0), 0, 0)
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: Uint8Array::New(v8::ArrayBuffer::New(env->isolate(), store_),
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offset_,
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length_);
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}
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Store::operator bool() const {
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return store_ != nullptr;
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}

‎src/quic/data.h‎

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@@ -3,6 +3,7 @@
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#if HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC
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#include <env.h>
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#include <memory_tracker.h>
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#include <nghttp3/nghttp3.h>
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#include <ngtcp2/ngtcp2.h>
@@ -41,6 +42,8 @@ class Store final : public MemoryRetainer {
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Store(v8::Local<v8::ArrayBuffer> buffer, Option option = Option::NONE);
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Store(v8::Local<v8::ArrayBufferView> view, Option option = Option::NONE);
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v8::Local<v8::Uint8Array> ToUint8Array(Environment* env) const;
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operator uv_buf_t() const;
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operator ngtcp2_vec() const;
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operator nghttp3_vec() const;

‎src/quic/sessionticket.cc‎

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#if HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC
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#include "sessionticket.h"
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#include <env-inl.h>
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#include <memory_tracker-inl.h>
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#include <ngtcp2/ngtcp2_crypto.h>
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#include <node_buffer.h>
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#include <node_errors.h>
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namespace node {
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using v8::ArrayBufferView;
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using v8::Just;
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using v8::Local;
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using v8::Maybe;
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using v8::MaybeLocal;
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using v8::Nothing;
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using v8::Object;
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using v8::Value;
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using v8::ValueDeserializer;
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using v8::ValueSerializer;
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namespace quic {
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namespace {
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SessionTicket::AppData::Source* GetAppDataSource(SSL* ssl) {
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ngtcp2_crypto_conn_ref* ref =
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static_cast<ngtcp2_crypto_conn_ref*>(SSL_get_app_data(ssl));
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if (ref != nullptr && ref->user_data != nullptr) {
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return static_cast<SessionTicket::AppData::Source*>(ref->user_data);
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}
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return nullptr;
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}
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} // namespace
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SessionTicket::SessionTicket(Store&& ticket, Store&& transport_params)
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: ticket_(std::move(ticket)),
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transport_params_(std::move(transport_params)) {}
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Maybe<SessionTicket> SessionTicket::FromV8Value(Environment* env,
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v8::Local<v8::Value> value) {
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if (!value->IsArrayBufferView()) {
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THROW_ERR_INVALID_ARG_TYPE(env, "The ticket must be an ArrayBufferView.");
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return Nothing<SessionTicket>();
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}
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Store content(value.As<ArrayBufferView>());
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ngtcp2_vec vec = content;
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ValueDeserializer des(env->isolate(), vec.base, vec.len);
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if (des.ReadHeader(env->context()).IsNothing()) {
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THROW_ERR_INVALID_ARG_VALUE(env, "The ticket format is invalid.");
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return Nothing<SessionTicket>();
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}
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Local<Value> ticket;
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Local<Value> transport_params;
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errors::TryCatchScope tryCatch(env);
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if (!des.ReadValue(env->context()).ToLocal(&ticket) ||
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!des.ReadValue(env->context()).ToLocal(&transport_params) ||
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!ticket->IsArrayBufferView() || !transport_params->IsArrayBufferView()) {
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if (tryCatch.HasCaught()) {
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// Any errors thrown we want to catch and supress. The only
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// error we want to expose to the user is that the ticket format
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// is invalid.
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if (!tryCatch.HasTerminated()) {
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THROW_ERR_INVALID_ARG_VALUE(env, "The ticket format is invalid.");
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tryCatch.ReThrow();
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}
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return Nothing<SessionTicket>();
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}
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THROW_ERR_INVALID_ARG_VALUE(env, "The ticket format is invalid.");
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return Nothing<SessionTicket>();
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}
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return Just(SessionTicket(Store(ticket.As<ArrayBufferView>()),
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Store(transport_params.As<ArrayBufferView>())));
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}
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MaybeLocal<Object> SessionTicket::encode(Environment* env) const {
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auto context = env->context();
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ValueSerializer ser(env->isolate());
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ser.WriteHeader();
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if (ser.WriteValue(context, ticket_.ToUint8Array(env)).IsNothing() ||
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ser.WriteValue(context, transport_params_.ToUint8Array(env))
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.IsNothing()) {
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return MaybeLocal<Object>();
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}
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auto result = ser.Release();
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return Buffer::New(env, reinterpret_cast<char*>(result.first), result.second);
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}
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const uv_buf_t SessionTicket::ticket() const {
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return ticket_;
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}
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const ngtcp2_vec SessionTicket::transport_params() const {
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return transport_params_;
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}
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void SessionTicket::MemoryInfo(MemoryTracker* tracker) const {
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tracker->TrackField("ticket", ticket_);
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tracker->TrackField("transport_params", transport_params_);
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}
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int SessionTicket::GenerateCallback(SSL* ssl, void* arg) {
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SessionTicket::AppData::Collect(ssl);
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return 1;
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}
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SSL_TICKET_RETURN SessionTicket::DecryptedCallback(SSL* ssl,
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SSL_SESSION* session,
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const unsigned char* keyname,
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size_t keyname_len,
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SSL_TICKET_STATUS status,
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void* arg) {
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switch (status) {
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default:
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return SSL_TICKET_RETURN_IGNORE;
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case SSL_TICKET_EMPTY:
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[[fallthrough]];
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case SSL_TICKET_NO_DECRYPT:
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return SSL_TICKET_RETURN_IGNORE_RENEW;
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case SSL_TICKET_SUCCESS_RENEW:
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[[fallthrough]];
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case SSL_TICKET_SUCCESS:
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return static_cast<SSL_TICKET_RETURN>(
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SessionTicket::AppData::Extract(ssl));
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}
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}
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SessionTicket::AppData::AppData(SSL* ssl) : ssl_(ssl) {}
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bool SessionTicket::AppData::Set(const uv_buf_t& data) {
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if (set_ || data.base == nullptr || data.len == 0) return false;
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set_ = true;
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SSL_SESSION_set1_ticket_appdata(SSL_get0_session(ssl_), data.base, data.len);
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return set_;
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}
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std::optional<const uv_buf_t> SessionTicket::AppData::Get() const {
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uv_buf_t buf;
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int ret =
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SSL_SESSION_get0_ticket_appdata(SSL_get0_session(ssl_),
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reinterpret_cast<void**>(&buf.base),
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reinterpret_cast<size_t*>(&buf.len));
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if (ret != 1) return std::nullopt;
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return buf;
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}
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void SessionTicket::AppData::Collect(SSL* ssl) {
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auto source = GetAppDataSource(ssl);
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if (source != nullptr) {
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SessionTicket::AppData app_data(ssl);
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source->CollectSessionTicketAppData(&app_data);
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}
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}
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SessionTicket::AppData::Status SessionTicket::AppData::Extract(SSL* ssl) {
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auto source = GetAppDataSource(ssl);
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if (source != nullptr) {
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SessionTicket::AppData app_data(ssl);
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return source->ExtractSessionTicketAppData(app_data);
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}
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return Status::TICKET_IGNORE;
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}
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} // namespace quic
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} // namespace node
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#endif // HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC

‎src/quic/sessionticket.h‎

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#pragma once
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#if HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC
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#include <crypto/crypto_common.h>
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#include <env.h>
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#include <memory_tracker.h>
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#include <uv.h>
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#include <v8.h>
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#include "data.h"
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namespace node {
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namespace quic {
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// A TLS 1.3 Session resumption ticket. Encapsulates both the TLS
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// ticket and the encoded QUIC transport parameters. The encoded
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// structure should be considered to be opaque for end users.
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// In JavaScript, the ticket will be represented as a Buffer
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// instance with opaque data. To resume a session, the user code
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// would pass that Buffer back into to client connection API.
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class SessionTicket final : public MemoryRetainer {
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public:
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static v8::Maybe<SessionTicket> FromV8Value(Environment* env,
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v8::Local<v8::Value> value);
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SessionTicket() = default;
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SessionTicket(Store&& ticket, Store&& transport_params);
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const uv_buf_t ticket() const;
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const ngtcp2_vec transport_params() const;
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v8::MaybeLocal<v8::Object> encode(Environment* env) const;
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void MemoryInfo(MemoryTracker* tracker) const override;
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SET_MEMORY_INFO_NAME(SessionTicket)
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SET_SELF_SIZE(SessionTicket)
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class AppData;
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// The callback that OpenSSL will call when generating the session ticket
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// and it needs to collect additional application specific data.
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static int GenerateCallback(SSL* ssl, void* arg);
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// The callback that OpenSSL will call when consuming the session ticket
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// and it needs to pass embedded application data back into the app.
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static SSL_TICKET_RETURN DecryptedCallback(SSL* ssl,
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SSL_SESSION* session,
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const unsigned char* keyname,
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size_t keyname_len,
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SSL_TICKET_STATUS status,
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void* arg);
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private:
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Store ticket_;
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Store transport_params_;
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};
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// SessionTicket::AppData is a utility class that is used only during the
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// generation or access of TLS stateless sesson tickets. It exists solely to
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// provide a easier way for Session::Application instances to set relevant
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// metadata in the session ticket when it is created, and the exract and
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// subsequently verify that data when a ticket is received and is being
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// validated. The app data is completely opaque to anything other than the
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// server-side of the Session::Application that sets it.
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class SessionTicket::AppData final {
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public:
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enum class Status {
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TICKET_IGNORE = SSL_TICKET_RETURN_IGNORE,
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TICKET_IGNORE_RENEW = SSL_TICKET_RETURN_IGNORE_RENEW,
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TICKET_USE = SSL_TICKET_RETURN_USE,
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TICKET_USE_RENEW = SSL_TICKET_RETURN_USE_RENEW,
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};
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explicit AppData(SSL* session);
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AppData(const AppData&) = delete;
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AppData(AppData&&) = delete;
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AppData& operator=(const AppData&) = delete;
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AppData& operator=(AppData&&) = delete;
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bool Set(const uv_buf_t& data);
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std::optional<const uv_buf_t> Get() const;
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// A source of application data collected during the creation of the
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// session ticket. This interface will be implemented by the QUIC
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// Session.
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class Source {
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public:
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enum class Flag { STATUS_NONE, STATUS_RENEW };
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// Collect application data into the given AppData instance.
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virtual void CollectSessionTicketAppData(AppData* app_data) const = 0;
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// Extract application data from the given AppData instance.
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virtual Status ExtractSessionTicketAppData(
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const AppData& app_data, Flag flag = Flag::STATUS_NONE) = 0;
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};
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static void Collect(SSL* ssl);
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static Status Extract(SSL* ssl);
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private:
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bool set_ = false;
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SSL* ssl_;
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};
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} // namespace quic
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} // namespace node
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#endif // HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC
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#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

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