Adding upstream version 0.12.1+dfsg.upstream/0.12.1+dfsgupstream

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

1 files changed, 196 insertions, 0 deletions

diff --git a/examples/h09client.h b/examples/h09client.h
new file mode 100644
index 0000000..702eb17
--- /dev/null
+++ b/examples/h09client.h
@@ -0,0 +1,196 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2017 ngtcp2 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.
+ */
+#ifndef H09CLIENT_H
+#define H09CLIENT_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif // HAVE_CONFIG_H
+
+#include <vector>
+#include <deque>
+#include <map>
+#include <string_view>
+#include <memory>
+#include <set>
+
+#include <ngtcp2/ngtcp2.h>
+#include <ngtcp2/ngtcp2_crypto.h>
+
+#include <nghttp3/nghttp3.h>
+
+#include <ev.h>
+
+#include "client_base.h"
+#include "tls_client_context.h"
+#include "tls_client_session.h"
+#include "network.h"
+#include "shared.h"
+#include "template.h"
+
+using namespace ngtcp2;
+
+struct Stream {
+  Stream(const Request &req, int64_t stream_id);
+  ~Stream();
+
+  int open_file(const std::string_view &path);
+
+  Request req;
+  int64_t stream_id;
+  int fd;
+  std::string rawreqbuf;
+  nghttp3_buf reqbuf;
+};
+
+struct StreamIDLess {
+  constexpr bool operator()(const Stream *lhs, const Stream *rhs) const {
+    return lhs->stream_id < rhs->stream_id;
+  }
+};
+
+class Client;
+
+struct Endpoint {
+  Address addr;
+  ev_io rev;
+  Client *client;
+  int fd;
+};
+
+class Client : public ClientBase {
+public:
+  Client(struct ev_loop *loop, uint32_t client_chosen_version,
+         uint32_t original_version);
+  ~Client();
+
+  int init(int fd, const Address &local_addr, const Address &remote_addr,
+           const char *addr, const char *port, TLSClientContext &tls_ctx);
+  void disconnect();
+
+  int on_read(const Endpoint &ep);
+  int on_write();
+  int write_streams();
+  int feed_data(const Endpoint &ep, const sockaddr *sa, socklen_t salen,
+                const ngtcp2_pkt_info *pi, uint8_t *data, size_t datalen);
+  int handle_expiry();
+  void update_timer();
+  int handshake_completed();
+  int handshake_confirmed();
+  void recv_version_negotiation(const uint32_t *sv, size_t nsv);
+
+  int send_packet(const Endpoint &ep, const ngtcp2_addr &remote_addr,
+                  unsigned int ecn, const uint8_t *data, size_t datalen);
+  int on_stream_close(int64_t stream_id, uint64_t app_error_code);
+  int on_extend_max_streams();
+  int handle_error();
+  int make_stream_early();
+  int change_local_addr();
+  void start_change_local_addr_timer();
+  int update_key(uint8_t *rx_secret, uint8_t *tx_secret,
+                 ngtcp2_crypto_aead_ctx *rx_aead_ctx, uint8_t *rx_iv,
+                 ngtcp2_crypto_aead_ctx *tx_aead_ctx, uint8_t *tx_iv,
+                 const uint8_t *current_rx_secret,
+                 const uint8_t *current_tx_secret, size_t secretlen);
+  int initiate_key_update();
+  void start_key_update_timer();
+  void start_delay_stream_timer();
+
+  int select_preferred_address(Address &selected_addr,
+                               const ngtcp2_preferred_addr *paddr);
+
+  std::optional<Endpoint *> endpoint_for(const Address &remote_addr);
+
+  void set_remote_addr(const ngtcp2_addr &remote_addr);
+
+  int submit_http_request(Stream *stream);
+  int recv_stream_data(uint32_t flags, int64_t stream_id, const uint8_t *data,
+                       size_t datalen);
+  int acked_stream_data_offset(int64_t stream_id, uint64_t offset,
+                               uint64_t datalen);
+  int extend_max_stream_data(int64_t stream_id, uint64_t max_data);
+
+  void write_qlog(const void *data, size_t datalen);
+
+  void on_send_blocked(const Endpoint &ep, const ngtcp2_addr &remote_addr,
+                       unsigned int ecn, size_t datalen);
+  void start_wev_endpoint(const Endpoint &ep);
+  int send_blocked_packet();
+
+  const std::vector<uint32_t> &get_offered_versions() const;
+
+  void early_data_rejected();
+
+private:
+  std::vector<Endpoint> endpoints_;
+  Address remote_addr_;
+  ev_io wev_;
+  ev_timer timer_;
+  ev_timer change_local_addr_timer_;
+  ev_timer key_update_timer_;
+  ev_timer delay_stream_timer_;
+  ev_signal sigintev_;
+  struct ev_loop *loop_;
+  std::map<int64_t, std::unique_ptr<Stream>> streams_;
+  std::set<Stream *, StreamIDLess> sendq_;
+  std::vector<uint32_t> offered_versions_;
+  // addr_ is the server host address.
+  const char *addr_;
+  // port_ is the server port.
+  const char *port_;
+  // nstreams_done_ is the number of streams opened.
+  size_t nstreams_done_;
+  // nstreams_closed_ is the number of streams get closed.
+  size_t nstreams_closed_;
+  // nkey_update_ is the number of key update occurred.
+  size_t nkey_update_;
+  uint32_t client_chosen_version_;
+  uint32_t original_version_;
+  // early_data_ is true if client attempts to do 0RTT data transfer.
+  bool early_data_;
+  // should_exit_ is true if client should exit rather than waiting
+  // for timeout.
+  bool should_exit_;
+  // should_exit_on_handshake_confirmed_ is true if client should exit
+  // when handshake confirmed.
+  bool should_exit_on_handshake_confirmed_;
+  // handshake_confirmed_ gets true after handshake has been
+  // confirmed.
+  bool handshake_confirmed_;
+
+  struct {
+    bool send_blocked;
+    // blocked field is effective only when send_blocked is true.
+    struct {
+      const Endpoint *endpoint;
+      Address remote_addr;
+      unsigned int ecn;
+      size_t datalen;
+    } blocked;
+    std::array<uint8_t, 64_k> data;
+  } tx_;
+};
+
+#endif // CLIENT_H