Prepare HTTP support

kernel/include/net/http_layer.hpp

@@ -0,0 +1,32 @@
+//=======================================================================
+// Copyright Baptiste Wicht 2013-2016.
+// Distributed under the terms of the MIT License.
+// (See accompanying file LICENSE or copy at
+//  http://www.opensource.org/licenses/MIT)
+//=======================================================================
+
+#ifndef NET_HTTP_LAYER_H
+#define NET_HTTP_LAYER_H
+
+#include <types.hpp>
+
+#include "net/ethernet_layer.hpp"
+#include "net/ip_layer.hpp"
+#include "net/network.hpp"
+
+namespace network {
+
+namespace http {
+
+void decode(network::interface_descriptor& interface, network::ethernet::packet& packet);
+
+std::expected<network::ethernet::packet> kernel_prepare_packet(network::interface_descriptor& interface, const packet_descriptor& descriptor);
+std::expected<network::ethernet::packet> user_prepare_packet(char* buffer, network::interface_descriptor& interface, const packet_descriptor* descriptor);
+
+std::expected<void> finalize_packet(network::interface_descriptor& interface, network::ethernet::packet& p);
+
+} // end of http namespace
+
+} // end of network namespace
+
+#endif

kernel/src/net/http_layer.cpp

@@ -0,0 +1,54 @@
+//=======================================================================
+// Copyright Baptiste Wicht 2013-2016.
+// Distributed under the terms of the MIT License.
+// (See accompanying file LICENSE or copy at
+//  http://www.opensource.org/licenses/MIT)
+//=======================================================================
+
+#include "net/http_layer.hpp"
+#include "net/tcp_layer.hpp"
+
+#include "kernel_utils.hpp"
+
+namespace {
+
+} //end of anonymous namespace
+
+void network::http::decode(network::interface_descriptor& /*interface*/, network::ethernet::packet& packet) {
+    packet.tag(3, packet.index);
+
+    logging::logf(logging::log_level::TRACE, "http: Start HTTP packet handling\n");
+
+    //TODO ?
+
+    //TODO network::propagate_packet(packet, network::socket_protocol::HTTP);
+}
+
+std::expected<network::ethernet::packet> network::http::kernel_prepare_packet(network::interface_descriptor& interface, const packet_descriptor& descriptor) {
+    // Ask the TCP layer to craft a packet
+    //network::tcp::packet_descriptor desc{descriptor.target_ip, descriptor.source_port, 80, descriptor.payload_size};
+    //auto packet = network::tcp::kernel_prepare_packet(interface, desc);
+
+    //if (packet) {
+        //packet.tag(3, packet.index);
+    //}
+
+    //return packet;
+}
+
+std::expected<network::ethernet::packet> network::http::user_prepare_packet(char* buffer, network::interface_descriptor& interface, const packet_descriptor* descriptor) {
+    // Ask the TCP layer to craft a packet
+    //network::tcp::packet_descriptor desc{descriptor->target_ip, descriptor->source_port, 80, descriptor->payload_size};
+    //auto packet = network::tcp::user_prepare_packet(buffer, interface, &desc);
+
+    //if (packet) {
+        //packet.tag(3, packet.index);
+    //}
+
+    //return packet;
+}
+
+std::expected<void> network::http::finalize_packet(network::interface_descriptor& interface, network::ethernet::packet& p) {
+    // Give the packet to the TCP layer for finalization
+    return network::tcp::finalize_packet(interface, p);
+}

tlib/include/tlib/net_constants.hpp

@@ -133,6 +133,15 @@ struct packet_descriptor {
 
 } // end of namespace icmp
 
+namespace http {
+
+struct packet_descriptor {
+    size_t payload_size;
+    ip::address target_ip;
+};
+
+} // end of http namespace
+
 namespace dns {
 
 struct header {