[HICN-534] Major rework on libtransport organization

Change-Id: I361b83a18b4fd59be136d5f0817fc28e17e89884
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/libtransport/src/implementation/tls_socket_producer.h b/libtransport/src/implementation/tls_socket_producer.h
new file mode 100644
index 000000000..e910c8259
--- /dev/null
+++ b/libtransport/src/implementation/tls_socket_producer.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <implementation/socket_producer.h>
+
+#include <openssl/ssl.h>
+#include <condition_variable>
+#include <mutex>
+
+namespace transport {
+namespace implementation {
+
+class P2PSecureProducerSocket;
+
+class TLSProducerSocket : virtual public ProducerSocket {
+  friend class P2PSecureProducerSocket;
+
+ public:
+  explicit TLSProducerSocket(interface::ProducerSocket *producer_socket,
+                             P2PSecureProducerSocket *parent,
+                             const Name &handshake_name);
+
+  ~TLSProducerSocket();
+
+  uint32_t produce(Name content_name, const uint8_t *buffer, size_t buffer_size,
+                   bool is_last = true, uint32_t start_offset = 0) override {
+    return produce(content_name, utils::MemBuf::copyBuffer(buffer, buffer_size),
+                   is_last, start_offset);
+  }
+
+  uint32_t produce(Name content_name, std::unique_ptr<utils::MemBuf> &&buffer,
+                   bool is_last = true, uint32_t start_offset = 0) override;
+
+  void produce(ContentObject &content_object) override;
+
+  void asyncProduce(const Name &suffix, const uint8_t *buf, size_t buffer_size,
+                    bool is_last = true,
+                    uint32_t *start_offset = nullptr) override;
+
+  void asyncProduce(Name content_name, std::unique_ptr<utils::MemBuf> &&buffer,
+                    bool is_last, uint32_t offset,
+                    uint32_t **last_segment = nullptr) override;
+
+  void asyncProduce(ContentObject &content_object) override;
+
+  virtual void accept();
+
+  virtual int async_accept();
+
+  virtual int setSocketOption(
+      int socket_option_key,
+      ProducerInterestCallback socket_option_value) override;
+
+  virtual int setSocketOption(
+      int socket_option_key,
+      ProducerContentCallback socket_option_value) override;
+
+  virtual int getSocketOption(
+      int socket_option_key,
+      ProducerContentCallback **socket_option_value) override;
+
+  int getSocketOption(int socket_option_key,
+                      ProducerContentCallback &socket_option_value);
+
+  int getSocketOption(int socket_option_key,
+                      ProducerInterestCallback &socket_option_value);
+
+  using ProducerSocket::getSocketOption;
+  using ProducerSocket::onInterest;
+  using ProducerSocket::setSocketOption;
+
+ protected:
+  /* Callback invoked once an interest has been received and its payload
+   * decrypted */
+  ProducerInterestCallback on_interest_input_decrypted_;
+  ProducerInterestCallback on_interest_process_decrypted_;
+  ProducerContentCallback on_content_produced_application_;
+
+  std::mutex mtx_;
+
+  /* Condition variable for the wait */
+  std::condition_variable cv_;
+
+  /* Bool variable, true if there is something to read (an interest arrived) */
+  bool something_to_read_;
+
+  /* First interest that open a secure connection */
+  transport::core::Name name_;
+
+  /* SSL handle */
+  SSL *ssl_;
+  SSL_CTX *ctx_;
+
+  Packet::MemBufPtr packet_;
+
+  std::unique_ptr<utils::MemBuf> head_;
+  std::uint32_t last_segment_;
+  std::shared_ptr<utils::MemBuf> payload_;
+  std::uint32_t key_id_;
+
+  std::thread *handshake;
+  P2PSecureProducerSocket *parent_;
+
+  bool first_;
+  Name handshake_name_;
+  int tls_chunks_;
+  int to_call_oncontentproduced_;
+
+  bool still_writing_;
+
+  utils::EventThread encryption_thread_;
+
+  void onInterest(ProducerSocket &p, Interest &interest);
+  void cacheMiss(interface::ProducerSocket &p, Interest &interest);
+
+  /* Return the number of read bytes in readbytes */
+  static int read(BIO *b, char *buf, size_t size, size_t *readbytes);
+
+  /* Return the number of read bytes in the return param */
+  static int readOld(BIO *h, char *buf, int size);
+
+  /* Return the number of written bytes in written */
+  static int write(BIO *b, const char *buf, size_t size, size_t *written);
+
+  /* Return the number of written bytes in the return param */
+  static int writeOld(BIO *h, const char *buf, int num);
+
+  static long ctrl(BIO *b, int cmd, long num, void *ptr);
+
+  static int addHicnKeyIdCb(SSL *s, unsigned int ext_type, unsigned int context,
+                            const unsigned char **out, size_t *outlen, X509 *x,
+                            size_t chainidx, int *al, void *add_arg);
+
+  static void freeHicnKeyIdCb(SSL *s, unsigned int ext_type,
+                              unsigned int context, const unsigned char *out,
+                              void *add_arg);
+
+  static int parseHicnKeyIdCb(SSL *s, unsigned int ext_type,
+                              unsigned int context, const unsigned char *in,
+                              size_t inlen, X509 *x, size_t chainidx, int *al,
+                              void *add_arg);
+
+  void onContentProduced(interface::ProducerSocket &p,
+                         const std::error_code &err, uint64_t bytes_written);
+};
+
+}  // namespace implementation
+
+}  // end namespace transport