From c18004e67869a9de88d9f8038a7a1957f20f63fc Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <matthias@gamezock.de>
Date: Fri, 11 Sep 2009 15:04:47 +0200
Subject: Net: Add support for packets >64K Need too secure this against DoS...

---
 src/Net/Connection.cpp |  4 ++--
 src/Net/Packet.cpp     |  4 ++--
 src/Net/Packet.h       | 11 ++++++-----
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/Net/Connection.cpp b/src/Net/Connection.cpp
index 80a7163..f1beb35 100644
--- a/src/Net/Connection.cpp
+++ b/src/Net/Connection.cpp
@@ -96,7 +96,7 @@ void Connection::handleHeaderReceive(const boost::shared_array<boost::uint8_t> &
     enterReceiveLoop();
   }
   else {
-    rawReceive(ntohs(header.length), boost::bind(&Connection::handleDataReceive, thisPtr.lock(), _1));
+    rawReceive(ntohl(header.length), boost::bind(&Connection::handleDataReceive, thisPtr.lock(), _1));
   }
 }
 
@@ -104,7 +104,7 @@ void Connection::handleDataReceive(const boost::shared_array<boost::uint8_t> &da
   {
     boost::upgrade_lock<boost::shared_mutex> lock(connectionLock);
 
-    receiveSignal.emit(boost::shared_ptr<Packet>(new Packet(ntohs(header.requestId), data.get(), ntohs(header.length))));
+    receiveSignal.emit(boost::shared_ptr<Packet>(new Packet(ntohs(header.requestId), data.get(), ntohl(header.length))));
   }
 
   enterReceiveLoop();
diff --git a/src/Net/Packet.cpp b/src/Net/Packet.cpp
index 3f32357..ca9cbee 100644
--- a/src/Net/Packet.cpp
+++ b/src/Net/Packet.cpp
@@ -22,11 +22,11 @@
 namespace Mad {
 namespace Net {
 
-Packet::Packet(boost::uint16_t requestId, const void *data, boost::uint16_t length) {
+Packet::Packet(boost::uint16_t requestId, const void *data, boost::uint32_t length) {
   rawData = reinterpret_cast<Header*>(std::malloc(sizeof(Header)+length));
 
   rawData->requestId = htons(requestId);
-  rawData->length = htons(length);
+  rawData->length = htonl(length);
 
   if(length)
     std::memcpy(reinterpret_cast<boost::uint8_t*>(rawData)+sizeof(Header), data, length);
diff --git a/src/Net/Packet.h b/src/Net/Packet.h
index 567c9c3..3844bad 100644
--- a/src/Net/Packet.h
+++ b/src/Net/Packet.h
@@ -38,15 +38,16 @@ namespace Net {
 class MAD_NET_EXPORT Packet {
   public:
     struct Header {
+      boost::uint32_t length;
       boost::uint16_t requestId;
-      boost::uint16_t length;
+      boost::uint16_t reserved;
     };
 
   protected:
     Header *rawData;
 
   public:
-    Packet(boost::uint16_t requestId, const void *data = 0, boost::uint16_t length = 0);
+    Packet(boost::uint16_t requestId, const void *data = 0, boost::uint32_t length = 0);
 
     Packet(const Packet &p) {
       rawData = reinterpret_cast<Header*>(std::malloc(p.getRawDataLength()));
@@ -63,8 +64,8 @@ class MAD_NET_EXPORT Packet {
       return ntohs(rawData->requestId);
     }
 
-    boost::uint16_t getLength() const {
-      return ntohs(rawData->length);
+    boost::uint32_t getLength() const {
+      return ntohl(rawData->length);
     }
 
     const boost::uint8_t* getData() const {
@@ -76,7 +77,7 @@ class MAD_NET_EXPORT Packet {
     }
 
     unsigned long getRawDataLength() const {
-      return sizeof(Header) + ntohs(rawData->length);
+      return sizeof(Header) + getLength();
     }
 };
 
-- 
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