Documented many header files. Done some minor code refactoring over PDU::clone_packet.

src/pdu.cpp

@@ -22,6 +22,7 @@
 #include <cassert>
 #include "utils.h"
 #include "pdu.h"
+#include "rawpdu.h"
 
 
 Tins::PDU::PDU(uint32_t flag, PDU *next_pdu) : _flag(flag), _inner_pdu(next_pdu) {
@@ -67,6 +68,18 @@ void Tins::PDU::serialize(uint8_t *buffer, uint32_t total_sz, const PDU *parent)
     write_serialization(buffer, total_sz, parent);
 }
 
+Tins::PDU *Tins::PDU::clone_inner_pdu(uint8_t *ptr, uint32_t total_sz) {
+    PDU *child = 0;
+    if(inner_pdu()) {
+        child = inner_pdu()->clone_packet(ptr, total_sz);
+        if(!child)
+            return 0;
+    }
+    else
+        child = new RawPDU(ptr, total_sz);
+    return child;
+}
+
 /* Static methods */
 uint32_t Tins::PDU::do_checksum(uint8_t *start, uint8_t *end) {
     uint32_t checksum(0);