1 files changed, 91 insertions, 0 deletions
diff --git a/sandbox/sandbox_poc/pocdll/network.cc b/sandbox/sandbox_poc/pocdll/network.cc
new file mode 100644
index 0000000..66dbc63
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+++ b/sandbox/sandbox_poc/pocdll/network.cc
@@ -0,0 +1,91 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "sandbox/sandbox_poc/pocdll/exports.h"
+#include "sandbox/sandbox_poc/pocdll/utils.h"
+
+// This file contains the tests used to verify the security of the network.
+
+void POCDLL_API TestNetworkListen(HANDLE log) {
+  HandleToFile handle2file;
+  FILE *output = handle2file.Translate(log, "w");
+#if DONT_WANT_INTERCEPTIONS_JUST_WANT_NETWORK
+  // Initialize Winsock
+  WSADATA wsa_data;
+  int result = ::WSAStartup(MAKEWORD(2, 2), &wsa_data);
+  if (result != NO_ERROR) {
+    fprintf(output, "[ERROR] Cannot initialize winsock. Error%d\r\n", result);
+    return;
+  }
+
+  // Create a SOCKET for listening for
+  // incoming connection requests.
+  SOCKET listen_socket;
+  listen_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (listen_socket == INVALID_SOCKET) {
+    fprintf(output, "[ERROR] Failed to create socket. Error %ld\r\n",
+           ::WSAGetLastError());
+    ::WSACleanup();
+    return;
+  }
+
+  // The sockaddr_in structure specifies the address family,
+  // IP address, and port for the socket that is being bound.
+  sockaddr_in service;
+  service.sin_family = AF_INET;
+  service.sin_addr.s_addr = inet_addr("127.0.0.1");
+  service.sin_port = htons(88);
+
+  if (bind(listen_socket, reinterpret_cast<SOCKADDR*>(&service),
+           sizeof(service)) == SOCKET_ERROR) {
+    fprintf(output, "[BLOCKED] Bind socket on port 88. Error %ld\r\n",
+            ::WSAGetLastError());
+    closesocket(listen_socket);
+    ::WSACleanup();
+    return;
+  }
+
+  // Listen for incoming connection requests
+  // on the created socket
+  if (listen(listen_socket, SOMAXCONN) == SOCKET_ERROR) {
+    fprintf(output, "[BLOCKED] Listen socket on port 88. Error %ld\r\n",
+            ::WSAGetLastError());
+
+  } else {
+    fprintf(output, "[GRANTED] Listen socket on port 88.\r\n",
+            ::WSAGetLastError());
+  }
+
+  ::WSACleanup();
+  return;
+#else  // DONT_WANT_INTERCEPTIONS_JUST_WANT_NETWORK
+  // Just print out that this test is not running.
+  fprintf(output, "[ERROR] No network tests.\r\n");
+#endif  // DONT_WANT_INTERCEPTIONS_JUST_WANT_NETWORK
+}