feat: Due to the deep modifications related to names and packet format,

this task cover a large part of the codebase and involves several changes:

- the library provides a name data structure (hicn_name_t ), which is composed
  of a name prefix (hicn_name_prefix_t) and a name suffix (hicn_name_suffix_t),
  and it has been extended to provide all support functions required for name
  manipulation, including common prefix computation, as required for the Longest
  Prefix Match (LPM)in the forwarder, in addition to Exact Prefix Match (EPM).
- all code has been rewritten to use this data structure instead of having for
  instance the forwarder define its own name class (used to be Name and NameBitVector)
  the code has been refactored to minimize name allocations and copies, one remaining
  aspect is the difference of name storage between PIT and CS entries (respectively
  in the PIT entry, and in the message buffer), which causes the packet cache
  index to be updated when a PIT entry is converted into a CS entry. By storing
  the name in the PIT/CS entry everytime, we might save on this operation).
- hicn-light FIB has been rewritten : code has been refactored and should now be
  shorter and documented; unit tests have been drafted but more would be required
  to cover all cases and match the algorithms to add/remove nodes, as specified in the doc.
  all protocol details and hICN header formats are now abstracted by the library
  for the forwarder (and thus header.h and  protocols/*.h have been removed from
  public includes, and replaced by packet.h providing protocol agnostic packet
  level functions, completely replacing the compat.h header that used to provide
  similar functions.
- this works by exposing a opaque buffer to the application (a kind of socket buffer)
  which is used by the lib to cache the packet format and offsets of the different
  layers in the buffer and provider efficient operations (the packet format is
  either defined for packet construction, or guessed at ingress, and this structure
  is updated accordingly only once).

Co-authored-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
Change-Id: I31e321897f85f0267fe8ba4720363c180564492f

1 files changed, 31 insertions, 28 deletions

diff --git a/libtransport/includes/hicn/transport/interfaces/socket_options_default_values.h b/libtransport/includes/hicn/transport/interfaces/socket_options_default_values.h
index da8eafcd9..11edae193 100644
--- a/libtransport/includes/hicn/transport/interfaces/socket_options_default_values.h
+++ b/libtransport/includes/hicn/transport/interfaces/socket_options_default_values.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Copyright (c) 2021-2022 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:
@@ -15,10 +15,14 @@
 
 #pragma once
 
+#include <hicn/transport/portability/portability.h>
+
 extern "C" {
+#ifndef _WIN32
+TRANSPORT_CLANG_DISABLE_WARNING("-Wextern-c-compat")
+#endif
 #include <hicn/base.h>
-#include <hicn/compat.h>
-}
+};
 
 #include <chrono>
 #include <cstdint>
@@ -31,21 +35,20 @@ namespace default_values {
 
 // Packet format
 // #define NEW_PACKET_FORMAT
-static constexpr hicn_format_t packet_format =
+static constexpr hicn_packet_format_t packet_format =
 #ifdef NEW_PACKET_FORMAT
-    HF_INET6_UDP;
+    HICN_PACKET_FORMAT_NEW;
 #else
-    HF_INET6_TCP;
+    HICN_PACKET_FORMAT_IPV6_TCP;
 #endif
 
 // Parameters
-static constexpr uint32_t interest_lifetime = 1001;  // milliseconds
-static constexpr uint32_t never_expire_time = HICN_MAX_LIFETIME;
-static constexpr uint32_t content_object_expiry_time =
+static const uint32_t interest_lifetime = 1001;  // milliseconds
+static const uint32_t never_expire_time = HICN_MAX_LIFETIME;
+static const uint32_t content_object_expiry_time =
     never_expire_time;  // milliseconds -> 50 seconds
-static constexpr uint32_t content_object_packet_size =
-    1500;  // The ethernet MTU
-static constexpr uint32_t producer_socket_output_buffer_size =
+static const uint32_t content_object_packet_size = 1500;  // The ethernet MTU
+static const uint32_t producer_socket_output_buffer_size =
     150000;  // Content Object
 static constexpr uint32_t log_2_default_buffer_size = 12;
 static constexpr uint32_t signature_size = 260;           // bytes
@@ -58,26 +61,26 @@ static constexpr uint32_t manifest_factor_relevant = 100;
 static constexpr uint32_t manifest_factor_alert = 20;
 
 // RAAQM
-static constexpr int sample_number = 30;
-static constexpr double gamma_value = 1;
-static constexpr double beta_value = 0.8;
-static constexpr double drop_factor = 0.2;
-static constexpr double minimum_drop_probability = 0.00001;
-static constexpr int path_id = 0;
-static constexpr double rate_alpha = 0.8;
+static const int sample_number = 30;
+static const double gamma_value = 1;
+static const double beta_value = 0.8;
+static const double drop_factor = 0.2;
+static const double minimum_drop_probability = 0.00001;
+static const int path_id = 0;
+static const double rate_alpha = 0.8;
 
 // Rate estimation
-static constexpr uint32_t batch = 50;
-static constexpr uint32_t kv = 20;
-static constexpr double alpha = 0.8;
-static constexpr uint32_t rate_choice = 0;
+static const uint32_t batch = 50;
+static const uint32_t kv = 20;
+static const double alpha = 0.8;
+static const uint32_t rate_choice = 0;
 
 // maximum allowed values
-static constexpr uint32_t transport_protocol_min_retransmissions = 0;
-static constexpr uint32_t transport_protocol_max_retransmissions = 128;
-static constexpr uint32_t max_content_object_size = 8096;
-static constexpr uint32_t min_window_size = 1;        // Interests
-static constexpr uint32_t max_window_size = 256 * 2;  // Interests
+static const uint32_t transport_protocol_min_retransmissions = 0;
+static const uint32_t transport_protocol_max_retransmissions = 128;
+static const uint32_t max_content_object_size = 8096;
+static const uint32_t min_window_size = 1;        // Interests
+static const uint32_t max_window_size = 256 * 2;  // Interests
 
 }  // namespace default_values