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-rw-r--r--src/h2load_http3_session.cc449
1 files changed, 449 insertions, 0 deletions
diff --git a/src/h2load_http3_session.cc b/src/h2load_http3_session.cc
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+++ b/src/h2load_http3_session.cc
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+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2019 nghttp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "h2load_http3_session.h"
+
+#include <iostream>
+
+#include <ngtcp2/ngtcp2.h>
+
+#include "h2load.h"
+
+namespace h2load {
+
+Http3Session::Http3Session(Client *client)
+ : client_(client), conn_(nullptr), npending_request_(0), reqidx_(0) {}
+
+Http3Session::~Http3Session() { nghttp3_conn_del(conn_); }
+
+void Http3Session::on_connect() {}
+
+int Http3Session::submit_request() {
+ if (npending_request_) {
+ ++npending_request_;
+ return 0;
+ }
+
+ auto config = client_->worker->config;
+ reqidx_ = client_->reqidx;
+
+ if (++client_->reqidx == config->nva.size()) {
+ client_->reqidx = 0;
+ }
+
+ auto stream_id = submit_request_internal();
+ if (stream_id < 0) {
+ if (stream_id == NGTCP2_ERR_STREAM_ID_BLOCKED) {
+ ++npending_request_;
+ return 0;
+ }
+ return -1;
+ }
+
+ return 0;
+}
+
+namespace {
+nghttp3_ssize read_data(nghttp3_conn *conn, int64_t stream_id, nghttp3_vec *vec,
+ size_t veccnt, uint32_t *pflags, void *user_data,
+ void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+
+ s->read_data(vec, veccnt, pflags);
+
+ return 1;
+}
+} // namespace
+
+void Http3Session::read_data(nghttp3_vec *vec, size_t veccnt,
+ uint32_t *pflags) {
+ assert(veccnt > 0);
+
+ auto config = client_->worker->config;
+
+ vec[0].base = config->data;
+ vec[0].len = config->data_length;
+ *pflags |= NGHTTP3_DATA_FLAG_EOF;
+}
+
+int64_t Http3Session::submit_request_internal() {
+ int rv;
+ int64_t stream_id;
+
+ auto config = client_->worker->config;
+ auto &nva = config->nva[reqidx_];
+
+ rv = ngtcp2_conn_open_bidi_stream(client_->quic.conn, &stream_id, nullptr);
+ if (rv != 0) {
+ return rv;
+ }
+
+ nghttp3_data_reader dr{};
+ dr.read_data = h2load::read_data;
+
+ rv = nghttp3_conn_submit_request(
+ conn_, stream_id, reinterpret_cast<nghttp3_nv *>(nva.data()), nva.size(),
+ config->data_fd == -1 ? nullptr : &dr, nullptr);
+ if (rv != 0) {
+ return rv;
+ }
+
+ client_->on_request(stream_id);
+ auto req_stat = client_->get_req_stat(stream_id);
+ assert(req_stat);
+ client_->record_request_time(req_stat);
+
+ return stream_id;
+}
+
+int Http3Session::on_read(const uint8_t *data, size_t len) { return -1; }
+
+int Http3Session::on_write() { return -1; }
+
+void Http3Session::terminate() {}
+
+size_t Http3Session::max_concurrent_streams() {
+ return (size_t)client_->worker->config->max_concurrent_streams;
+}
+
+namespace {
+int stream_close(nghttp3_conn *conn, int64_t stream_id, uint64_t app_error_code,
+ void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ if (s->stream_close(stream_id, app_error_code) != 0) {
+ return NGHTTP3_ERR_CALLBACK_FAILURE;
+ }
+ return 0;
+}
+} // namespace
+
+int Http3Session::stream_close(int64_t stream_id, uint64_t app_error_code) {
+ if (!ngtcp2_is_bidi_stream(stream_id)) {
+ assert(!ngtcp2_conn_is_local_stream(client_->quic.conn, stream_id));
+ ngtcp2_conn_extend_max_streams_uni(client_->quic.conn, 1);
+ }
+ client_->on_stream_close(stream_id, app_error_code == NGHTTP3_H3_NO_ERROR);
+ return 0;
+}
+
+namespace {
+int recv_data(nghttp3_conn *conn, int64_t stream_id, const uint8_t *data,
+ size_t datalen, void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ s->recv_data(stream_id, data, datalen);
+ return 0;
+}
+} // namespace
+
+void Http3Session::recv_data(int64_t stream_id, const uint8_t *data,
+ size_t datalen) {
+ client_->record_ttfb();
+ client_->worker->stats.bytes_body += datalen;
+ consume(stream_id, datalen);
+}
+
+namespace {
+int deferred_consume(nghttp3_conn *conn, int64_t stream_id, size_t nconsumed,
+ void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ s->consume(stream_id, nconsumed);
+ return 0;
+}
+} // namespace
+
+void Http3Session::consume(int64_t stream_id, size_t nconsumed) {
+ ngtcp2_conn_extend_max_stream_offset(client_->quic.conn, stream_id,
+ nconsumed);
+ ngtcp2_conn_extend_max_offset(client_->quic.conn, nconsumed);
+}
+
+namespace {
+int begin_headers(nghttp3_conn *conn, int64_t stream_id, void *user_data,
+ void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ s->begin_headers(stream_id);
+ return 0;
+}
+} // namespace
+
+void Http3Session::begin_headers(int64_t stream_id) {
+ auto payloadlen = nghttp3_conn_get_frame_payload_left(conn_, stream_id);
+ assert(payloadlen > 0);
+
+ client_->worker->stats.bytes_head += payloadlen;
+}
+
+namespace {
+int recv_header(nghttp3_conn *conn, int64_t stream_id, int32_t token,
+ nghttp3_rcbuf *name, nghttp3_rcbuf *value, uint8_t flags,
+ void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ auto k = nghttp3_rcbuf_get_buf(name);
+ auto v = nghttp3_rcbuf_get_buf(value);
+ s->recv_header(stream_id, &k, &v);
+ return 0;
+}
+} // namespace
+
+void Http3Session::recv_header(int64_t stream_id, const nghttp3_vec *name,
+ const nghttp3_vec *value) {
+ client_->on_header(stream_id, name->base, name->len, value->base, value->len);
+ client_->worker->stats.bytes_head_decomp += name->len + value->len;
+}
+
+namespace {
+int stop_sending(nghttp3_conn *conn, int64_t stream_id, uint64_t app_error_code,
+ void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ if (s->stop_sending(stream_id, app_error_code) != 0) {
+ return NGHTTP3_ERR_CALLBACK_FAILURE;
+ }
+ return 0;
+}
+} // namespace
+
+int Http3Session::stop_sending(int64_t stream_id, uint64_t app_error_code) {
+ auto rv = ngtcp2_conn_shutdown_stream_read(client_->quic.conn, stream_id,
+ app_error_code);
+ if (rv != 0) {
+ std::cerr << "ngtcp2_conn_shutdown_stream_read: " << ngtcp2_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+ return 0;
+}
+
+namespace {
+int reset_stream(nghttp3_conn *conn, int64_t stream_id, uint64_t app_error_code,
+ void *user_data, void *stream_user_data) {
+ auto s = static_cast<Http3Session *>(user_data);
+ if (s->reset_stream(stream_id, app_error_code) != 0) {
+ return NGHTTP3_ERR_CALLBACK_FAILURE;
+ }
+ return 0;
+}
+} // namespace
+
+int Http3Session::reset_stream(int64_t stream_id, uint64_t app_error_code) {
+ auto rv = ngtcp2_conn_shutdown_stream_write(client_->quic.conn, stream_id,
+ app_error_code);
+ if (rv != 0) {
+ std::cerr << "ngtcp2_conn_shutdown_stream_write: " << ngtcp2_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+ return 0;
+}
+
+int Http3Session::close_stream(int64_t stream_id, uint64_t app_error_code) {
+ auto rv = nghttp3_conn_close_stream(conn_, stream_id, app_error_code);
+ switch (rv) {
+ case 0:
+ return 0;
+ case NGHTTP3_ERR_STREAM_NOT_FOUND:
+ if (!ngtcp2_is_bidi_stream(stream_id)) {
+ assert(!ngtcp2_conn_is_local_stream(client_->quic.conn, stream_id));
+ ngtcp2_conn_extend_max_streams_uni(client_->quic.conn, 1);
+ }
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+int Http3Session::shutdown_stream_read(int64_t stream_id) {
+ auto rv = nghttp3_conn_shutdown_stream_read(conn_, stream_id);
+ if (rv != 0) {
+ return -1;
+ }
+ return 0;
+}
+
+int Http3Session::extend_max_local_streams() {
+ auto config = client_->worker->config;
+
+ for (; npending_request_; --npending_request_) {
+ auto stream_id = submit_request_internal();
+ if (stream_id < 0) {
+ if (stream_id == NGTCP2_ERR_STREAM_ID_BLOCKED) {
+ return 0;
+ }
+ return -1;
+ }
+
+ if (++reqidx_ == config->nva.size()) {
+ reqidx_ = 0;
+ }
+ }
+
+ return 0;
+}
+
+int Http3Session::init_conn() {
+ int rv;
+
+ assert(conn_ == nullptr);
+
+ if (ngtcp2_conn_get_max_local_streams_uni(client_->quic.conn) < 3) {
+ return -1;
+ }
+
+ nghttp3_callbacks callbacks{
+ nullptr, // acked_stream_data
+ h2load::stream_close,
+ h2load::recv_data,
+ h2load::deferred_consume,
+ h2load::begin_headers,
+ h2load::recv_header,
+ nullptr, // end_headers
+ nullptr, // begin_trailers
+ h2load::recv_header,
+ nullptr, // end_trailers
+ h2load::stop_sending,
+ nullptr, // end_stream
+ h2load::reset_stream,
+ nullptr, // shutdown
+ };
+
+ auto config = client_->worker->config;
+
+ nghttp3_settings settings;
+ nghttp3_settings_default(&settings);
+ settings.qpack_max_dtable_capacity = config->header_table_size;
+ settings.qpack_blocked_streams = 100;
+
+ auto mem = nghttp3_mem_default();
+
+ rv = nghttp3_conn_client_new(&conn_, &callbacks, &settings, mem, this);
+ if (rv != 0) {
+ std::cerr << "nghttp3_conn_client_new: " << nghttp3_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ int64_t ctrl_stream_id;
+
+ rv =
+ ngtcp2_conn_open_uni_stream(client_->quic.conn, &ctrl_stream_id, nullptr);
+ if (rv != 0) {
+ std::cerr << "ngtcp2_conn_open_uni_stream: " << ngtcp2_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ rv = nghttp3_conn_bind_control_stream(conn_, ctrl_stream_id);
+ if (rv != 0) {
+ std::cerr << "nghttp3_conn_bind_control_stream: " << nghttp3_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ int64_t qpack_enc_stream_id, qpack_dec_stream_id;
+
+ rv = ngtcp2_conn_open_uni_stream(client_->quic.conn, &qpack_enc_stream_id,
+ nullptr);
+ if (rv != 0) {
+ std::cerr << "ngtcp2_conn_open_uni_stream: " << ngtcp2_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ rv = ngtcp2_conn_open_uni_stream(client_->quic.conn, &qpack_dec_stream_id,
+ nullptr);
+ if (rv != 0) {
+ std::cerr << "ngtcp2_conn_open_uni_stream: " << ngtcp2_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ rv = nghttp3_conn_bind_qpack_streams(conn_, qpack_enc_stream_id,
+ qpack_dec_stream_id);
+ if (rv != 0) {
+ std::cerr << "nghttp3_conn_bind_qpack_streams: " << nghttp3_strerror(rv)
+ << std::endl;
+ return -1;
+ }
+
+ return 0;
+}
+
+ssize_t Http3Session::read_stream(uint32_t flags, int64_t stream_id,
+ const uint8_t *data, size_t datalen) {
+ auto nconsumed = nghttp3_conn_read_stream(
+ conn_, stream_id, data, datalen, flags & NGTCP2_STREAM_DATA_FLAG_FIN);
+ if (nconsumed < 0) {
+ std::cerr << "nghttp3_conn_read_stream: " << nghttp3_strerror(nconsumed)
+ << std::endl;
+ ngtcp2_connection_close_error_set_application_error(
+ &client_->quic.last_error,
+ nghttp3_err_infer_quic_app_error_code(nconsumed), nullptr, 0);
+ return -1;
+ }
+ return nconsumed;
+}
+
+ssize_t Http3Session::write_stream(int64_t &stream_id, int &fin,
+ nghttp3_vec *vec, size_t veccnt) {
+ auto sveccnt =
+ nghttp3_conn_writev_stream(conn_, &stream_id, &fin, vec, veccnt);
+ if (sveccnt < 0) {
+ ngtcp2_connection_close_error_set_application_error(
+ &client_->quic.last_error,
+ nghttp3_err_infer_quic_app_error_code(sveccnt), nullptr, 0);
+ return -1;
+ }
+ return sveccnt;
+}
+
+void Http3Session::block_stream(int64_t stream_id) {
+ nghttp3_conn_block_stream(conn_, stream_id);
+}
+
+void Http3Session::shutdown_stream_write(int64_t stream_id) {
+ nghttp3_conn_shutdown_stream_write(conn_, stream_id);
+}
+
+int Http3Session::add_write_offset(int64_t stream_id, size_t ndatalen) {
+ auto rv = nghttp3_conn_add_write_offset(conn_, stream_id, ndatalen);
+ if (rv != 0) {
+ ngtcp2_connection_close_error_set_application_error(
+ &client_->quic.last_error, nghttp3_err_infer_quic_app_error_code(rv),
+ nullptr, 0);
+ return -1;
+ }
+ return 0;
+}
+
+int Http3Session::add_ack_offset(int64_t stream_id, size_t datalen) {
+ auto rv = nghttp3_conn_add_ack_offset(conn_, stream_id, datalen);
+ if (rv != 0) {
+ ngtcp2_connection_close_error_set_application_error(
+ &client_->quic.last_error, nghttp3_err_infer_quic_app_error_code(rv),
+ nullptr, 0);
+ return -1;
+ }
+ return 0;
+}
+
+} // namespace h2load