hdr

diff --git a/src/nat/nat.h b/src/nat/nat.h
new file mode 100644 (file)
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+++ b/src/nat/nat.h
@@ -0,0 +1,73 @@
+/*
+     This file is part of GNUnet.
+     (C) 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file nat/nat.h
+ * @brief Library handling UPnP and NAT-PMP port forwarding and
+ *     external IP address retrieval
+ * @author Milan Bouchet-Valat
+ */
+
+#ifndef NAT_H
+#define NAT_H
+
+#define DEBUG GNUNET_YES
+
+/**
+ * Used to communicate with the UPnP and NAT-PMP plugins 
+ */
+enum GNUNET_NAT_PortState
+  {
+    GNUNET_NAT_PORT_ERROR,
+
+    /**
+     * the port isn't forwarded 
+     */
+    GNUNET_NAT_PORT_UNMAPPED,
+
+    /**
+     * we're cancelling the port forwarding 
+     */
+    GNUNET_NAT_PORT_UNMAPPING,
+
+    /**
+     * we're in the process of trying to set up port forwarding 
+     */
+    GNUNET_NAT_PORT_MAPPING,
+
+    /**
+     * we've successfully forwarded the port 
+     */
+    GNUNET_NAT_PORT_MAPPED
+  };
+
+
+/**
+ * Compare the sin(6)_addr fields of AF_INET or AF_INET(6) sockaddr.
+ * 
+ * @param a first sockaddr
+ * @param b second sockaddr
+ * @return 0 if addresses are equal, non-null value otherwise 
+ */
+int GNUNET_NAT_cmp_addr (const struct sockaddr *a, 
+                        const struct sockaddr *b);
+
+
+#endif