Polish and simplyfy STUN code, move STUN code to GNUNET_NAT_

1 files changed, 111 insertions, 0 deletions

diff --git a/src/nat/nat_stun.h b/src/nat/nat_stun.h
new file mode 100644
index 000000000..a3982bfc9
--- /dev/null
+++ b/src/nat/nat_stun.h
@@ -0,0 +1,111 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2009, 2015 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.
+*/
+
+/**
+ * Testcase for STUN server resolution
+ *
+ * @file nat/test_stun.h
+ * @brief Testcase for STUN library
+ * @author Bruno Souza Cabral
+ * @autor Mark Spencer (Original code borrowed from Asterisk)
+ *
+ */
+
+
+#define STUN_IGNORE             (0)
+#define STUN_ACCEPT             (1)
+
+#define STUN_MAGIC_COOKIE       0x2112A442
+
+typedef struct { uint32_t id[3]; } GNUNET_PACKED stun_trans_id;
+
+struct stun_header {
+    uint16_t msgtype;
+    uint16_t msglen;
+    uint32_t magic;
+        stun_trans_id  id;
+
+} GNUNET_PACKED;
+
+struct stun_attr {
+    uint16_t attr;
+    uint16_t len;
+
+} GNUNET_PACKED;
+
+/*
+ * The format normally used for addresses carried by STUN messages.
+ */
+struct stun_addr {
+    uint8_t  unused;
+    uint8_t  family;
+    uint16_t port;
+    uint32_t   addr;
+} GNUNET_PACKED;
+
+
+
+/* STUN message classes */
+typedef enum StunClasses {
+    INVALID_CLASS = 0,
+    STUN_REQUEST = 0x0000,
+    STUN_INDICATION = 0x0001,
+    STUN_RESPONSE = 0x0002,
+    STUN_ERROR_RESPONSE = 0x0003
+} StunClasses;
+
+typedef enum StunMethods {
+    INVALID_METHOD = 0,
+    STUN_BINDING = 0x0001,
+    STUN_SHARED_SECRET = 0x0002,
+    STUN_ALLOCATE = 0x0003,
+    STUN_REFRESH = 0x0004,
+    STUN_SEND = 0x0006,
+    STUN_DATA = 0x0007,
+    STUN_CREATE_PERMISSION = 0x0008,
+    STUN_CHANNEL_BIND = 0x0009
+} StunMethods;
+
+/* Basic attribute types in stun messages.
+ * Messages can also contain custom attributes (codes above 0x7fff)
+ */
+
+typedef enum StunAttributes {
+    STUN_MAPPED_ADDRESS = 0x0001,
+    STUN_RESPONSE_ADDRESS = 0x0002,
+    STUN_CHANGE_ADDRESS = 0x0003,
+    STUN_SOURCE_ADDRESS = 0x0004,
+    STUN_CHANGED_ADDRESS = 0x0005,
+    STUN_USERNAME = 0x0006,
+    STUN_PASSWORD = 0x0007,
+    STUN_MESSAGE_INTEGRITY = 0x0008,
+    STUN_ERROR_CODE = 0x0009,
+    STUN_UNKNOWN_ATTRIBUTES = 0x000a,
+    STUN_REFLECTED_FROM = 0x000b,
+    STUN_REALM = 0x0014,
+    STUN_NONCE = 0x0015,
+    STUN_XOR_MAPPED_ADDRESS = 0x0020,
+    STUN_MS_VERSION = 0x8008,
+    STUN_MS_XOR_MAPPED_ADDRESS = 0x8020,
+    STUN_SOFTWARE = 0x8022,
+    STUN_ALTERNATE_SERVER = 0x8023,
+    STUN_FINGERPRINT = 0x8028
+} StunAttributes;
+