From 6580b2f89fe3e2b5aae21bab83ffaefa38d04eff Mon Sep 17 00:00:00 2001
From: Andrew Stitcher <astitcher@apache.org>
Date: Thu, 23 Dec 2010 17:11:02 +0000
Subject: Reject attempts to connect with version of rdma protocol we don't
 understand

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1052324 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/sys/rdma/RdmaIO.cpp | 16 +++++++++++++++-
 cpp/src/qpid/sys/rdma/RdmaIO.h   |  2 ++
 2 files changed, 17 insertions(+), 1 deletion(-)

(limited to 'cpp/src')

diff --git a/cpp/src/qpid/sys/rdma/RdmaIO.cpp b/cpp/src/qpid/sys/rdma/RdmaIO.cpp
index 889544601f..b47165a302 100644
--- a/cpp/src/qpid/sys/rdma/RdmaIO.cpp
+++ b/cpp/src/qpid/sys/rdma/RdmaIO.cpp
@@ -22,7 +22,7 @@
 
 #include "qpid/log/Statement.h"
 
-#include <iostream>
+#include <string>
 #include <boost/bind.hpp>
 
 using qpid::sys::SocketAddress;
@@ -69,6 +69,18 @@ namespace Rdma {
     };
 #   pragma pack(pop)
 
+    class IOException : public std::exception {
+        std::string s;
+
+    public:
+        IOException(std::string s0): s(s0) {}
+        ~IOException() throw() {}
+        
+        const char* what() const throw() {
+            return s.c_str();
+        }
+    };
+
     AsynchIO::AsynchIO(
             QueuePair::intrusive_ptr q,
             int version,
@@ -97,6 +109,8 @@ namespace Rdma {
         errorCallback(ec),
         pendingWriteAction(boost::bind(&AsynchIO::writeEvent, this))
     {
+        if (protocolVersion > maxSupportedProtocolVersion)
+             throw IOException("Unsupported Rdma Protocol");
         qp->nonblocking();
         qp->notifyRecv();
         qp->notifySend();
diff --git a/cpp/src/qpid/sys/rdma/RdmaIO.h b/cpp/src/qpid/sys/rdma/RdmaIO.h
index 7a72feba4c..3a543e8ad6 100644
--- a/cpp/src/qpid/sys/rdma/RdmaIO.h
+++ b/cpp/src/qpid/sys/rdma/RdmaIO.h
@@ -98,6 +98,8 @@ namespace Rdma {
         void returnBuffer(Buffer*);
 
     private:
+        const static int maxSupportedProtocolVersion = 0;
+
         // Constants for the peer-peer command messages
         // These are sent in the high bits if the imm data of an rdma message
         // The low bits are used to send the credit
-- 
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