Major update v1.2b, add UDP, DNS support

- Enable user configuration for UIP_ACTIVE_OPEN to save memory/prog
space ( disables client functionality of uIP IP stack )
- Link UIP BUFFER SIZE directly to the RF24Network MAX_PAYLOAD_SIZE
variable to simplify configuration by only setting the variable in one
place
- Add support for UDP
- Re-organize config file
- Limit TCP window size and MSS to 511 bytes. For some reason, uIP
doesn't handle packets properly if this is defined at a larger value.
(See TCP flow control and congestion avoidance)
- Config uip logging via serial (disabled)
- Add debugging for UDP
- Add debugging for DNS
- Consolidate uip and RF24Ethernet includes into RF24Ethernet.h
- Remove the need for use_device() function. (maintained for backwards
compatibility)
- Proper handling of multiple connections. Data buffers allocated on a
per-connection basis.
- De-include all arp code when using TUN / RF24Mesh
- Add slight delay before responding after a payload is received
- Support for payload sizes larger than 255 bytes (max 511)
- Cleanup debugging printouts
- Condense uip_poll and uip_rexmit code
- Fix slight mistake in logic for window re-opening
- Fix logic in available() to handle changes with multiple connections
- Add code for Client.flush(); and Client.peek();

Dns.h

@@ -0,0 +1,45 @@
+// Arduino DNS client for Enc28J60-based Ethernet shield
+// (c) Copyright 2009-2010 MCQN Ltd.
+// Released under Apache License, version 2.0
+
+#ifndef DNSClient_h
+#define DNSClient_h
+
+#include "RF24Ethernet.h"
+
+#if UIP_CONF_UDP > 0
+
+
+class DNSClient
+{
+public:
+    // ctor
+    void begin(const IPAddress& aDNSServer);
+
+    /** Convert a numeric IP address string into a four-byte IP address.
+        @param aIPAddrString IP address to convert
+        @param aResult IPAddress structure to store the returned IP address
+        @result 1 if aIPAddrString was successfully converted to an IP address,
+                else error code
+    */
+    int inet_aton(const char *aIPAddrString, IPAddress& aResult);
+
+    /** Resolve the given hostname to an IP address.
+        @param aHostname Name to be resolved
+        @param aResult IPAddress structure to store the returned IP address
+        @result 1 if aIPAddrString was successfully converted to an IP address,
+                else error code
+    */
+    int getHostByName(const char* aHostname, IPAddress& aResult);
+
+protected:
+    uint16_t BuildRequest(const char* aName);
+    uint16_t ProcessResponse(uint16_t aTimeout, IPAddress& aAddress);
+
+    IPAddress iDNSServer;
+    uint16_t iRequestId;
+    RF24UDP iUdp;
+};
+
+#endif
+#endif

Doxyfile

@@ -38,7 +38,7 @@ PROJECT_NAME           = "RF24Ethernet - TCP/IP over RF24Network"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "Beta 1.1"
+PROJECT_NUMBER         = 1.2b
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a