diff -r 000000000000 -r 6474c204b198 dom/network/src/NetUtils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/network/src/NetUtils.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,71 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * Abstraction on top of the network support from libnetutils that we
+ * use to set up network connections.
+ */
+
+#ifndef NetUtils_h
+#define NetUtils_h
+
+#include "arpa/inet.h"
+
+// Copied from ifc.h
+#define RESET_IPV4_ADDRESSES 0x01
+#define RESET_IPV6_ADDRESSES 0x02
+#define RESET_ALL_ADDRESSES  (RESET_IPV4_ADDRESSES | RESET_IPV6_ADDRESSES)
+
+// Implements netutils functions. No need for an abstract class here since we
+// only have a one sdk specific method (dhcp_do_request)
+class NetUtils
+{
+public:
+  static void* GetSharedLibrary();
+
+  int32_t do_ifc_enable(const char *ifname);
+  int32_t do_ifc_disable(const char *ifname);
+  int32_t do_ifc_configure(const char *ifname,
+                           in_addr_t address,
+                           uint32_t prefixLength,
+                           in_addr_t gateway,
+                           in_addr_t dns1,
+                           in_addr_t dns2);
+  int32_t do_ifc_reset_connections(const char *ifname, const int32_t resetMask);
+  int32_t do_ifc_set_default_route(const char *ifname, in_addr_t gateway);
+  int32_t do_ifc_add_route(const char *ifname,
+                           const char *dst,
+                           uint32_t prefixLength,
+                           const char *gateway);
+  int32_t do_ifc_remove_route(const char *ifname,
+                              const char *dst,
+                              uint32_t prefixLength,
+                              const char *gateway);
+  int32_t do_ifc_remove_host_routes(const char *ifname);
+  int32_t do_ifc_remove_default_route(const char *ifname);
+  int32_t do_dhcp_stop(const char *ifname);
+  int32_t do_dhcp_do_request(const char *ifname,
+                             char *ipaddr,
+                             char *gateway,
+                             uint32_t *prefixLength,
+                             char *dns1,
+                             char *dns2,
+                             char *server,
+                             uint32_t  *lease,
+                             char* vendorinfo);
+
+  static int32_t SdkVersion();
+};
+
+// Defines a function type with the right arguments and return type.
+#define DEFINE_DLFUNC(name, ret, args...) typedef ret (*FUNC##name)(args);
+
+// Set up a dlsymed function ready to use.
+#define USE_DLFUNC(name)                                                      \
+  FUNC##name name = (FUNC##name) dlsym(GetSharedLibrary(), #name);            \
+  if (!name) {                                                                \
+    MOZ_ASSUME_UNREACHABLE("Symbol not found in shared library : " #name);    \
+  }
+
+#endif // NetUtils_h