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Posted to dev@tomcat.apache.org by ma...@apache.org on 2016/08/26 18:18:39 UTC

svn commit: r1757903 - in /tomcat/trunk: java/org/apache/tomcat/util/net/Nio2Endpoint.java java/org/apache/tomcat/util/net/NioEndpoint.java webapps/docs/changelog.xml

Author: markt
Date: Fri Aug 26 18:18:39 2016
New Revision: 1757903

URL: http://svn.apache.org/viewvc?rev=1757903&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=60035
Fix a potential connection leak if the client drops a TLS connection before the handshake completes.

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/Nio2Endpoint.java
    tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java
    tomcat/trunk/webapps/docs/changelog.xml

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/Nio2Endpoint.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/net/Nio2Endpoint.java?rev=1757903&r1=1757902&r2=1757903&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/tomcat/util/net/Nio2Endpoint.java (original)
+++ tomcat/trunk/java/org/apache/tomcat/util/net/Nio2Endpoint.java Fri Aug 26 18:18:39 2016
@@ -1608,14 +1608,15 @@ public class Nio2Endpoint extends Abstra
                 int handshake = -1;
 
                 try {
-                    // For STOP there is no point trying to handshake as the
-                    // Poller has been stopped.
-                    if (!socketWrapper.getSocket().isHandshakeComplete() && event == SocketEvent.ERROR) {
-                        handshake = -1;
-                    } else if (socketWrapper.getSocket().isHandshakeComplete() ||
-                            event == SocketEvent.STOP ||
-                            event == SocketEvent.ERROR) {
+                    if (socketWrapper.getSocket().isHandshakeComplete()) {
+                        // No TLS handshaking required. Let the handler
+                        // process this socket / event combination.
                         handshake = 0;
+                    } else if (event == SocketEvent.STOP || event == SocketEvent.DISCONNECT ||
+                            event == SocketEvent.ERROR) {
+                        // Unable to complete the TLS handshake. Treat it as
+                        // if the handshake failed.
+                        handshake = -1;
                     } else {
                         handshake = socketWrapper.getSocket().handshake();
                         // The handshake process reads/writes from/to the

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?rev=1757903&r1=1757902&r2=1757903&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java (original)
+++ tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java Fri Aug 26 18:18:39 2016
@@ -1374,10 +1374,15 @@ public class NioEndpoint extends Abstrac
 
                 try {
                     if (key != null) {
-                        // For STOP there is no point trying to handshake as the
-                        // Poller has been stopped.
-                        if (socket.isHandshakeComplete() || event == SocketEvent.STOP) {
+                        if (socket.isHandshakeComplete()) {
+                            // No TLS handshaking required. Let the handler
+                            // process this socket / event combination.
                             handshake = 0;
+                        } else if (event == SocketEvent.STOP || event == SocketEvent.DISCONNECT ||
+                                event == SocketEvent.ERROR) {
+                            // Unable to complete the TLS handshake. Treat it as
+                            // if the handshake failed.
+                            handshake = -1;
                         } else {
                             handshake = socket.handshake(key.isReadable(), key.isWritable());
                             // The handshake process reads/writes from/to the

Modified: tomcat/trunk/webapps/docs/changelog.xml
URL: http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1757903&r1=1757902&r2=1757903&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Fri Aug 26 18:18:39 2016
@@ -229,6 +229,10 @@
         Use the proper ERROR socket status code for async errors with NIO2.
         (remm)
       </fix>
+      <fix>
+        <bug>60035</bug>: Fix a potential connection leak if the client drops a
+        TLS connection before the handshake completes. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Jasper">



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