1 files changed, 49 insertions, 0 deletions
diff --git a/src/gns/gns_proxy_proto.h b/src/gns/gns_proxy_proto.h
new file mode 100644
index 0000000..ef30d5c
--- /dev/null
+++ b/src/gns/gns_proxy_proto.h
@@ -0,0 +1,49 @@
+
+#define SOCKS_VERSION_5 0x05
+#define SOCKS_AUTH_NONE 0
+
+/* The socks phases */
+enum
+{
+  SOCKS5_INIT,
+  SOCKS5_REQUEST,
+  SOCKS5_DATA_TRANSFER
+};
+
+/* Client hello */
+struct socks5_client_hello
+{
+  uint8_t version;
+  uint8_t num_auth_methods;
+  char* auth_methods;
+};
+
+/* Client socks request */
+struct socks5_client_request
+{
+  uint8_t version;
+  uint8_t command;
+  uint8_t resvd;
+  uint8_t addr_type;
+  /* 
+   * followed by either an ip4/ipv6 address
+   * or a domain name with a length field in front
+   */
+};
+
+/* Server hello */
+struct socks5_server_hello
+{
+  uint8_t version;
+  uint8_t auth_method;
+};
+
+/* Server response to client requests */
+struct socks5_server_response
+{
+  uint8_t version;
+  uint8_t reply;
+  uint8_t reserved;
+  uint8_t addr_type;
+  uint8_t add_port[18];
+};