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diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/android/ip_config_builder.cpp b/src/type3_AndroidCloud/anbox-master/src/anbox/android/ip_config_builder.cpp
new file mode 100644
index 0000000..8ba13ce
--- /dev/null
+++ b/src/type3_AndroidCloud/anbox-master/src/anbox/android/ip_config_builder.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2017 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "anbox/android/ip_config_builder.h"
+
+#include <boost/endian/buffers.hpp>
+
+#include <ostream>
+#include <sstream>
+
+namespace {
+constexpr const char *assignment_key{"ipAssignment"};
+constexpr const char *link_address_key{"linkAddress"};
+constexpr const char *gateway_key{"gateway"};
+constexpr const char *dns_key{"dns"};
+constexpr const char *id_key{"id"};
+constexpr const char *eos_key{"eos"};
+constexpr const char *assignment_static{"STATIC"};
+constexpr const char *assignment_dhcp{"DHCP"};
+constexpr const char *assignment_unknown{"UNKNOWN"};
+
+constexpr const std::uint32_t is_default_gateway{0};
+constexpr const std::uint32_t gateway_is_present{1};
+
+namespace aa = anbox::android;
+std::string assignment_to_string(const aa::IpConfigBuilder::Assignment &value) {
+  switch (value) {
+  case anbox::android::IpConfigBuilder::Assignment::Static:
+    return assignment_static;
+    break;
+  case anbox::android::IpConfigBuilder::Assignment::DHCP:
+    return assignment_dhcp;
+    break;
+  default:
+    break;
+  }
+  return assignment_unknown;
+}
+}
+
+namespace anbox {
+namespace android {
+std::size_t IpConfigBuilder::write(common::BinaryWriter &writer) {
+  writer.set_byte_order(common::BinaryWriter::Order::Big);
+
+  // See http://androidxref.com/7.1.1_r6/xref/frameworks/base/services/core/java/com/android/server/net/IpConfigStore.java
+  // for more details on the binary file format used here.
+
+  writer.write_uint32(static_cast<std::uint32_t>(version_));
+
+  writer.write_string_with_size(assignment_key);
+  writer.write_string_with_size(assignment_to_string(assignment_));
+
+  writer.write_string_with_size(link_address_key);
+  writer.write_string_with_size(link_.address);
+  writer.write_uint32(link_.prefix_length);
+
+  writer.write_string_with_size(gateway_key);
+  writer.write_uint32(is_default_gateway);
+  writer.write_uint32(gateway_is_present);
+  writer.write_string_with_size(gateway_);
+
+  writer.write_string_with_size(dns_key);
+  for (const auto &server : dns_servers_)
+    writer.write_string_with_size(server);
+
+  writer.write_string_with_size(id_key);
+  writer.write_uint32(id_);
+
+  writer.write_string_with_size(eos_key);
+
+  return writer.bytes_written();
+}
+
+void IpConfigBuilder::set_version(const Version &version) {
+  version_ = version;
+}
+
+void IpConfigBuilder::set_assignment(const Assignment &assignment) {
+  assignment_ = assignment;
+}
+
+void IpConfigBuilder::set_link_address(const std::string &address, uint32_t prefix_length) {
+  link_.address = address;
+  link_.prefix_length = prefix_length;
+}
+
+void IpConfigBuilder::set_gateway(const std::string &gateway) {
+  gateway_ = gateway;
+}
+
+void IpConfigBuilder::set_dns_servers(const std::vector<std::string> &dns_servers) {
+  dns_servers_ = dns_servers;
+}
+
+void IpConfigBuilder::set_id(uint32_t id) {
+  id_ = id;
+}
+}  // namespace android
+}  // namespace anbox