From 3f6cff061ec95955ba133f7a8037aa571ef10b53 Mon Sep 17 00:00:00 2001
From: Gary Spencer <gary.spencer@alfresco.com>
Date: Mon, 13 Feb 2006 18:11:33 +0000
Subject: [PATCH] Added checks to the NetBIOS name server config/startup to
 make sure the server has at least one valid local IP address. Linux often
 defaults the local host name to the 127.0.0.1 address which causes problems
 with name lookups. (Fixes AR-422)

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2361 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
---
 .../netbios/server/NetBIOSNameServer.java     | 15 +++++
 .../server/config/ServerConfiguration.java    | 58 +++++++++++++++++++
 2 files changed, 73 insertions(+)

diff --git a/source/java/org/alfresco/filesys/netbios/server/NetBIOSNameServer.java b/source/java/org/alfresco/filesys/netbios/server/NetBIOSNameServer.java
index 2db340c4ca..5ef7cf59b9 100644
--- a/source/java/org/alfresco/filesys/netbios/server/NetBIOSNameServer.java
+++ b/source/java/org/alfresco/filesys/netbios/server/NetBIOSNameServer.java
@@ -1481,6 +1481,21 @@ public class NetBIOSNameServer extends NetworkServer implements Runnable
                             && addrs[i].getHostAddress().equals("0.0.0.0") == false)
                         ipList.add(addrs[i].getAddress());
                 }
+                
+                // Check if any addresses were added to the list
+                
+                if ( ipList.size() == 0)
+                {
+                    // Log the available IP addresses
+                    
+                    logger.error("Failed to get IP address(es) for NetBIOS name");
+                    for ( int i = 0; i < addrs.length; i++)
+                        logger.error( "  Address: " + addrs[i]);
+                    logger.error("Check hosts file and/or DNS setup");
+                    logger.error("NetBIOS name server is shutting down");
+                    
+                    return;
+                }
             }
 
             // Initialize the NetBIOS name socket
diff --git a/source/java/org/alfresco/filesys/server/config/ServerConfiguration.java b/source/java/org/alfresco/filesys/server/config/ServerConfiguration.java
index c0b2eeb109..ece663ce50 100644
--- a/source/java/org/alfresco/filesys/server/config/ServerConfiguration.java
+++ b/source/java/org/alfresco/filesys/server/config/ServerConfiguration.java
@@ -781,6 +781,64 @@ public class ServerConfiguration
 
                 setNetBIOSBindAddress(getSMBBindAddress());
             }
+            else
+            {
+                // Get a list of all the local addresses
+
+                InetAddress[] addrs = null;
+                    
+                try
+                {
+                    // Get the local server IP address list
+
+                    addrs = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());
+                }
+                catch (UnknownHostException ex)
+                {
+                    logger.error("Failed to get local address list", ex);
+                }
+                
+                // Check the address list for one or more valid local addresses filtering out the loopback address
+                
+                int addrCnt = 0;
+
+                if ( addrs != null)
+                {
+                    for (int i = 0; i < addrs.length; i++)
+                    {
+    
+                        // Check for a valid address, filter out '127.0.0.1' and '0.0.0.0' addresses
+    
+                        if (addrs[i].getHostAddress().equals("127.0.0.1") == false
+                                && addrs[i].getHostAddress().equals("0.0.0.0") == false)
+                            addrCnt++;
+                    }
+                }
+                
+                // Check if any addresses were found
+                
+                if ( addrCnt == 0)
+                {
+                    // Log the available IP addresses
+                    
+                    if ( logger.isDebugEnabled())
+                    {
+                        logger.debug("Local address list dump :-");
+                        if ( addrs != null)
+                        {
+                            for ( int i = 0; i < addrs.length; i++)
+                                logger.debug( "  Address: " + addrs[i]);
+                        }
+                        else
+                            logger.debug("  No addresses");
+                    }
+                    
+                    // Throw an exception to stop the CIFS/NetBIOS name server from starting
+                    
+                    throw new AlfrescoRuntimeException( "Failed to get IP address(es) for the local server, check hosts file and/or DNS setup");
+                }
+                
+            }
         }
         else
         {